From nils.goroll at uplex.de Mon Oct 2 08:40:09 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Mon, 2 Oct 2023 08:40:09 +0000 (UTC) Subject: [master] 1cf2de5b4 Support VSB_tofile() of VSBs larger than INT_MAX Message-ID: <20231002084009.AE86510713F@lists.varnish-cache.org> commit 1cf2de5b458e9384369ea28cdcb026852aab233e Author: Nils Goroll Date: Thu Sep 28 16:00:31 2023 +0200 Support VSB_tofile() of VSBs larger than INT_MAX seen with an edgecase vtc, not relevant for production, but still a fix nevertheless. diff --git a/lib/libvarnish/vsb.c b/lib/libvarnish/vsb.c index e9e153b34..aed1182c8 100644 --- a/lib/libvarnish/vsb.c +++ b/lib/libvarnish/vsb.c @@ -670,11 +670,11 @@ VSB_indent(struct vsb *s, int i) int VSB_tofile(const struct vsb *s, int fd) { - int sz; + ssize_t r; assert_VSB_integrity(s); assert_VSB_state(s, VSB_FINISHED); assert(s->s_len >= 0); - sz = write(fd, s->s_buf, s->s_len); - return (sz == s->s_len ? 0 : -1); + r = write(fd, s->s_buf, s->s_len); + return (r == s->s_len ? 0 : -1); } From nils.goroll at uplex.de Mon Oct 2 08:40:09 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Mon, 2 Oct 2023 08:40:09 +0000 (UTC) Subject: [master] 91a858401 Support VSB_tofile() partial writes Message-ID: <20231002084009.C9546107143@lists.varnish-cache.org> commit 91a858401e713baf33b3364bd2b9a81f914b14d3 Author: Nils Goroll Date: Thu Sep 28 16:10:53 2023 +0200 Support VSB_tofile() partial writes most of all, this will make a helpful errno value available to the caller. diff --git a/lib/libvarnish/vsb.c b/lib/libvarnish/vsb.c index aed1182c8..cb2b5eab1 100644 --- a/lib/libvarnish/vsb.c +++ b/lib/libvarnish/vsb.c @@ -670,11 +670,23 @@ VSB_indent(struct vsb *s, int i) int VSB_tofile(const struct vsb *s, int fd) { + const char *p; ssize_t r; + size_t sz; assert_VSB_integrity(s); assert_VSB_state(s, VSB_FINISHED); assert(s->s_len >= 0); - r = write(fd, s->s_buf, s->s_len); - return (r == s->s_len ? 0 : -1); + r = 0; + p = s->s_buf; + sz = (typeof(sz))s->s_len; + while (sz > 0) { + r = write(fd, p, sz); + if (r < 0) + return (-1); + assert(r <= sz); + p += r; + sz -= r; + } + return (r >= 0 ? 0 : -1); } From dridi at varni.sh Mon Oct 2 12:17:48 2023 From: dridi at varni.sh (Dridi Boukelmoune) Date: Mon, 2 Oct 2023 12:17:48 +0000 Subject: [master] 91a858401 Support VSB_tofile() partial writes In-Reply-To: <20231002084009.C9546107143@lists.varnish-cache.org> References: <20231002084009.C9546107143@lists.varnish-cache.org> Message-ID: On Mon, Oct 2, 2023 at 8:40?AM Nils Goroll wrote: > > > commit 91a858401e713baf33b3364bd2b9a81f914b14d3 > Author: Nils Goroll > Date: Thu Sep 28 16:10:53 2023 +0200 > > Support VSB_tofile() partial writes > > most of all, this will make a helpful errno value available to the > caller. > > diff --git a/lib/libvarnish/vsb.c b/lib/libvarnish/vsb.c > index aed1182c8..cb2b5eab1 100644 > --- a/lib/libvarnish/vsb.c > +++ b/lib/libvarnish/vsb.c > @@ -670,11 +670,23 @@ VSB_indent(struct vsb *s, int i) > int > VSB_tofile(const struct vsb *s, int fd) > { > + const char *p; > ssize_t r; > + size_t sz; > > assert_VSB_integrity(s); > assert_VSB_state(s, VSB_FINISHED); > assert(s->s_len >= 0); > - r = write(fd, s->s_buf, s->s_len); > - return (r == s->s_len ? 0 : -1); > + r = 0; > + p = s->s_buf; > + sz = (typeof(sz))s->s_len; > + while (sz > 0) { > + r = write(fd, p, sz); > + if (r < 0) > + return (-1); > + assert(r <= sz); > + p += r; > + sz -= r; > + } > + return (r >= 0 ? 0 : -1); Aren't we guaranteed to have r >= 0 here? > } > _______________________________________________ > varnish-commit mailing list > varnish-commit at varnish-cache.org > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-commit From nils.goroll at uplex.de Mon Oct 2 12:21:53 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Mon, 2 Oct 2023 14:21:53 +0200 Subject: [master] 91a858401 Support VSB_tofile() partial writes In-Reply-To: References: <20231002084009.C9546107143@lists.varnish-cache.org> Message-ID: On 02.10.23 14:17, Dridi Boukelmoune wrote: >> + sz = (typeof(sz))s->s_len; >> + while (sz > 0) { >> + r = write(fd, p, sz); >> + if (r < 0) >> + return (-1); >> + assert(r <= sz); >> + p += r; >> + sz -= r; >> + } >> + return (r >= 0 ? 0 : -1); > Aren't we guaranteed to have r >= 0 here? not for sz == 0 -- Nils Goroll (he/him) ** * * UPLEX - Nils Goroll Systemoptimierung Scheffelstra?e 32 22301 Hamburg tel +49 40 28805731 mob +49 170 2723133 fax +49 40 42949753 xmpp://slink at jabber.int.uplex.de/ http://uplex.de/ From nils.goroll at uplex.de Mon Oct 2 12:22:28 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Mon, 2 Oct 2023 14:22:28 +0200 Subject: [master] 91a858401 Support VSB_tofile() partial writes In-Reply-To: References: <20231002084009.C9546107143@lists.varnish-cache.org> Message-ID: <4ed0f666-11de-2ea4-2b44-abd9c1e3046d@uplex.de> On 02.10.23 14:21, Nils Goroll wrote: >>> >> Aren't we guaranteed to have r >= 0 here? > > not for sz == 0 Sorry, /me stupid. -- Nils Goroll (he/him) ** * * UPLEX - Nils Goroll Systemoptimierung Scheffelstra?e 32 22301 Hamburg tel +49 40 28805731 mob +49 170 2723133 fax +49 40 42949753 xmpp://slink at jabber.int.uplex.de/ http://uplex.de/ From nils.goroll at uplex.de Mon Oct 2 12:27:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Mon, 2 Oct 2023 12:27:05 +0000 (UTC) Subject: [master] 2df4639f6 Polish previous commit Message-ID: <20231002122705.75D0D110B72@lists.varnish-cache.org> commit 2df4639f62236c98cf8a83b29183b3b2d0426ce2 Author: Nils Goroll Date: Mon Oct 2 14:25:43 2023 +0200 Polish previous commit Feedback from Dridi and a Flexelint warning. Ref 91a858401e713baf33b3364bd2b9a81f914b14d3 diff --git a/lib/libvarnish/vsb.c b/lib/libvarnish/vsb.c index cb2b5eab1..67a4efec8 100644 --- a/lib/libvarnish/vsb.c +++ b/lib/libvarnish/vsb.c @@ -684,9 +684,9 @@ VSB_tofile(const struct vsb *s, int fd) r = write(fd, p, sz); if (r < 0) return (-1); - assert(r <= sz); + assert((typeof(sz))r <= sz); p += r; sz -= r; } - return (r >= 0 ? 0 : -1); + return (0); } From dridi.boukelmoune at gmail.com Wed Oct 4 10:31:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 4 Oct 2023 10:31:10 +0000 (UTC) Subject: [master] 8da085a60 build: Squash automake warning on vmod_debug.vcc Message-ID: <20231004103110.89A1C11AD63@lists.varnish-cache.org> commit 8da085a60559422cfdfc3f51c76f7ca61bba98e1 Author: Dridi Boukelmoune Date: Wed Oct 4 10:02:45 2023 +0200 build: Squash automake warning on vmod_debug.vcc By conditionally setting vmod_*_vcc variables in includes we can get rid of a double definition warning. diff --git a/lib/libvcc/vmodtool.py b/lib/libvcc/vmodtool.py index e8c413793..c2fda1423 100755 --- a/lib/libvcc/vmodtool.py +++ b/lib/libvcc/vmodtool.py @@ -51,7 +51,7 @@ import time AMBOILERPLATE = '''\ # Generated by vmodtool.py --boilerplate. -vmod_XXX_vcc = $(srcdir)/VCC +vmod_XXX_vcc ?= $(srcdir)/VCC vmod_vcc_files += $(vmod_XXX_vcc) diff --git a/vmod/Makefile.am b/vmod/Makefile.am index 694e6c284..5f3fa9250 100644 --- a/vmod/Makefile.am +++ b/vmod/Makefile.am @@ -20,9 +20,13 @@ AM_CPPFLAGS = \ vccdir=$(datarootdir)/$(PACKAGE)/vcc +# Prepare variables populated by includes vmod_LTLIBRARIES = vmod_vcc_files = +# Prevent vmod_debug.vcc installation upfront +vmod_debug_vcc = + include $(srcdir)/automake_boilerplate_blob.am include $(srcdir)/automake_boilerplate_cookie.am include $(srcdir)/automake_boilerplate_debug.am @@ -49,8 +53,6 @@ vmod_debug_symbols_regex = 'Vmod_.*_Data' # not --strict vmodtoolargs_debug = --boilerplate -o vcc_debug_if -# unregister VCC file installation dist_noinst_DATA = $(srcdir)/vmod_debug.vcc -vmod_debug_vcc = dist_vcc_DATA = $(vmod_vcc_files) diff --git a/vmod/automake_boilerplate_blob.am b/vmod/automake_boilerplate_blob.am index 7d7543650..a90e66013 100644 --- a/vmod/automake_boilerplate_blob.am +++ b/vmod/automake_boilerplate_blob.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_blob_vcc = $(srcdir)/vmod_blob.vcc +vmod_blob_vcc ?= $(srcdir)/vmod_blob.vcc vmod_vcc_files += $(vmod_blob_vcc) diff --git a/vmod/automake_boilerplate_cookie.am b/vmod/automake_boilerplate_cookie.am index 50e6c6409..18ba8f244 100644 --- a/vmod/automake_boilerplate_cookie.am +++ b/vmod/automake_boilerplate_cookie.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_cookie_vcc = $(srcdir)/vmod_cookie.vcc +vmod_cookie_vcc ?= $(srcdir)/vmod_cookie.vcc vmod_vcc_files += $(vmod_cookie_vcc) diff --git a/vmod/automake_boilerplate_debug.am b/vmod/automake_boilerplate_debug.am index 69c74062b..926ca74a4 100644 --- a/vmod/automake_boilerplate_debug.am +++ b/vmod/automake_boilerplate_debug.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_debug_vcc = $(srcdir)/vmod_debug.vcc +vmod_debug_vcc ?= $(srcdir)/vmod_debug.vcc vmod_vcc_files += $(vmod_debug_vcc) diff --git a/vmod/automake_boilerplate_directors.am b/vmod/automake_boilerplate_directors.am index c75f0c310..3a35af278 100644 --- a/vmod/automake_boilerplate_directors.am +++ b/vmod/automake_boilerplate_directors.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_directors_vcc = $(srcdir)/vmod_directors.vcc +vmod_directors_vcc ?= $(srcdir)/vmod_directors.vcc vmod_vcc_files += $(vmod_directors_vcc) diff --git a/vmod/automake_boilerplate_proxy.am b/vmod/automake_boilerplate_proxy.am index 03bc9807e..7849b193f 100644 --- a/vmod/automake_boilerplate_proxy.am +++ b/vmod/automake_boilerplate_proxy.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_proxy_vcc = $(srcdir)/vmod_proxy.vcc +vmod_proxy_vcc ?= $(srcdir)/vmod_proxy.vcc vmod_vcc_files += $(vmod_proxy_vcc) diff --git a/vmod/automake_boilerplate_purge.am b/vmod/automake_boilerplate_purge.am index ddf76e60d..4f82e77cc 100644 --- a/vmod/automake_boilerplate_purge.am +++ b/vmod/automake_boilerplate_purge.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_purge_vcc = $(srcdir)/vmod_purge.vcc +vmod_purge_vcc ?= $(srcdir)/vmod_purge.vcc vmod_vcc_files += $(vmod_purge_vcc) diff --git a/vmod/automake_boilerplate_std.am b/vmod/automake_boilerplate_std.am index 84ee4466d..25c2d0797 100644 --- a/vmod/automake_boilerplate_std.am +++ b/vmod/automake_boilerplate_std.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_std_vcc = $(srcdir)/vmod_std.vcc +vmod_std_vcc ?= $(srcdir)/vmod_std.vcc vmod_vcc_files += $(vmod_std_vcc) diff --git a/vmod/automake_boilerplate_unix.am b/vmod/automake_boilerplate_unix.am index 422492dd4..c7d47f074 100644 --- a/vmod/automake_boilerplate_unix.am +++ b/vmod/automake_boilerplate_unix.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_unix_vcc = $(srcdir)/vmod_unix.vcc +vmod_unix_vcc ?= $(srcdir)/vmod_unix.vcc vmod_vcc_files += $(vmod_unix_vcc) diff --git a/vmod/automake_boilerplate_vtc.am b/vmod/automake_boilerplate_vtc.am index 685eb2830..51d81c18f 100644 --- a/vmod/automake_boilerplate_vtc.am +++ b/vmod/automake_boilerplate_vtc.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_vtc_vcc = $(srcdir)/vmod_vtc.vcc +vmod_vtc_vcc ?= $(srcdir)/vmod_vtc.vcc vmod_vcc_files += $(vmod_vtc_vcc) From dridi.boukelmoune at gmail.com Wed Oct 4 10:31:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 4 Oct 2023 10:31:10 +0000 (UTC) Subject: [master] 304ebd244 build: Make things up better about daemons Message-ID: <20231004103110.9E49A11AD66@lists.varnish-cache.org> commit 304ebd2449e02f7a29a8a2069149dbf712e32e60 Author: Dridi Boukelmoune Date: Wed Oct 4 10:13:36 2023 +0200 build: Make things up better about daemons Otherwise we end up with a broken output outside of MacOS: checking whether daemon() works... checking for daemon... yes Now it's one or the other: checking whether daemon() works... no checking for daemon... yes If we want to lie, we should at least be good at it. diff --git a/configure.ac b/configure.ac index bc38381a5..7faad20f2 100644 --- a/configure.ac +++ b/configure.ac @@ -372,11 +372,11 @@ fi AM_CONDITIONAL([WITH_UNWIND], [test "$have_unwind" = yes]) -# white lie - we don't actually test it -AC_MSG_CHECKING([whether daemon() works]) case $target in *-*-darwin*) + # white lie - we don't actually test it # present but not functional + AC_MSG_CHECKING([whether daemon() works]) AC_MSG_RESULT([no]) ac_cv_func_daemon=no ;; From dridi.boukelmoune at gmail.com Wed Oct 4 10:31:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 4 Oct 2023 10:31:10 +0000 (UTC) Subject: [master] 507ca25ed build: Squash autoconf warning on ac_cv_have_viz Message-ID: <20231004103110.B880411AD6A@lists.varnish-cache.org> commit 507ca25edcbbec008fef2866b7399322719cd6a6 Author: Dridi Boukelmoune Date: Wed Oct 4 10:56:40 2023 +0200 build: Squash autoconf warning on ac_cv_have_viz diff --git a/configure.ac b/configure.ac index 7faad20f2..80ba619ee 100644 --- a/configure.ac +++ b/configure.ac @@ -726,11 +726,14 @@ AC_CACHE_CHECK([whether we have support for visibility attributes], [AC_LANG_PROGRAM([[ int __attribute__((visibility ("hidden"))) foo; ]],[])], - [AC_DEFINE([HAVE_HIDDEN], [1], - [Define to 1 if visibility attribute hidden is available.]) - ]) + [ac_cv_have_viz=yes], + [ac_cv_have_viz=no]) ]) +AS_IF([test $ac_cv_have_viz = yes], [ + AC_DEFINE([HAVE_HIDDEN], [1], + [Define to 1 if visibility attribute hidden is available.])]) + # --enable-stack-protector AC_ARG_ENABLE(stack-protector, AS_HELP_STRING([--enable-stack-protector],[enable stack protector (default is YES)]), From dridi.boukelmoune at gmail.com Wed Oct 4 11:18:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 4 Oct 2023 11:18:05 +0000 (UTC) Subject: [master] c8bb85b50 Update autoconf macros Message-ID: <20231004111805.879F411C6FF@lists.varnish-cache.org> commit c8bb85b503a8e8c33122067472e51539f448308c Author: Nils Goroll Date: Wed Apr 27 11:31:10 2022 +0200 Update autoconf macros ... except for ax_with_curses.m4 which requires PKG_CHECK_EXISTS which, apparently, cci does not have should we consider again to not have them and rather require autoconf-archive be installed? diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4 index c3a8d695a..bd753b34d 100644 --- a/m4/ax_check_compile_flag.m4 +++ b/m4/ax_check_compile_flag.m4 @@ -1,10 +1,10 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +# https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html # =========================================================================== # # SYNOPSIS # -# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS]) +# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT]) # # DESCRIPTION # @@ -19,6 +19,8 @@ # the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to # force the compiler to issue an error when a bad flag is given. # +# INPUT gives an alternative input source to AC_COMPILE_IFELSE. +# # NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this # macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. # @@ -27,45 +29,24 @@ # Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -#serial 2 +#serial 6 AC_DEFUN([AX_CHECK_COMPILE_FLAG], -[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" - AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], + AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])], [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) -AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], +AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl diff --git a/m4/ax_check_link_flag.m4 b/m4/ax_check_link_flag.m4 index db899ddd0..03a30ce4c 100644 --- a/m4/ax_check_link_flag.m4 +++ b/m4/ax_check_link_flag.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html +# https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html # =========================================================================== # # SYNOPSIS @@ -29,36 +29,16 @@ # Copyright (c) 2008 Guido U. Draheim # Copyright (c) 2011 Maarten Bosmans # -# This program is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation, either version 3 of the License, or (at your -# option) any later version. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General -# Public License for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program. If not, see . -# -# As a special exception, the respective Autoconf Macro's copyright owner -# gives unlimited permission to copy, distribute and modify the configure -# scripts that are the output of Autoconf when processing the Macro. You -# need not follow the terms of the GNU General Public License when using -# or distributing such scripts, even though portions of the text of the -# Macro appear in them. The GNU General Public License (GPL) does govern -# all other use of the material that constitutes the Autoconf Macro. -# -# This special exception to the GPL applies to versions of the Autoconf -# Macro released by the Autoconf Archive. When you make and distribute a -# modified version of the Autoconf Macro, you may extend this special -# exception to the GPL to apply to your modified version as well. +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. -#serial 3 +#serial 6 AC_DEFUN([AX_CHECK_LINK_FLAG], -[AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl +[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF +AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ ax_check_save_flags=$LDFLAGS LDFLAGS="$LDFLAGS $4 $1" @@ -66,7 +46,7 @@ AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [ [AS_VAR_SET(CACHEVAR,[yes])], [AS_VAR_SET(CACHEVAR,[no])]) LDFLAGS=$ax_check_save_flags]) -AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], +AS_VAR_IF(CACHEVAR,yes, [m4_default([$2], :)], [m4_default([$3], :)]) AS_VAR_POPDEF([CACHEVAR])dnl diff --git a/m4/ax_lib_readline.m4 b/m4/ax_lib_readline.m4 index 056f25c2a..0d0822bce 100644 --- a/m4/ax_lib_readline.m4 +++ b/m4/ax_lib_readline.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_lib_readline.html +# https://www.gnu.org/software/autoconf-archive/ax_lib_readline.html # =========================================================================== # # SYNOPSIS @@ -58,7 +58,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 6 +#serial 8 AU_ALIAS([VL_LIB_READLINE], [AX_LIB_READLINE]) AC_DEFUN([AX_LIB_READLINE], [ @@ -73,7 +73,7 @@ AC_DEFUN([AX_LIB_READLINE], [ TRY_LIB="-l$readline_lib -l$termcap_lib" fi LIBS="$ORIG_LIBS $TRY_LIB" - AC_TRY_LINK_FUNC(readline, ax_cv_lib_readline="$TRY_LIB") + AC_LINK_IFELSE([AC_LANG_CALL([], [readline])], [ax_cv_lib_readline="$TRY_LIB"]) if test -n "$ax_cv_lib_readline"; then break fi @@ -96,7 +96,7 @@ AC_DEFUN([AX_LIB_READLINE], [ AC_CACHE_CHECK([whether readline supports history], ax_cv_lib_readline_history, [ ax_cv_lib_readline_history="no" - AC_TRY_LINK_FUNC(add_history, ax_cv_lib_readline_history="yes") + AC_LINK_IFELSE([AC_LANG_CALL([], [add_history])], [ax_cv_lib_readline_history="yes"]) ]) if test "$ax_cv_lib_readline_history" = "yes"; then AC_DEFINE(HAVE_READLINE_HISTORY, 1, diff --git a/m4/ax_pthread.m4 b/m4/ax_pthread.m4 index 4c4051ea3..9f35d1391 100644 --- a/m4/ax_pthread.m4 +++ b/m4/ax_pthread.m4 @@ -1,5 +1,5 @@ # =========================================================================== -# http://www.gnu.org/software/autoconf-archive/ax_pthread.html +# https://www.gnu.org/software/autoconf-archive/ax_pthread.html # =========================================================================== # # SYNOPSIS @@ -14,20 +14,24 @@ # flags that are needed. (The user can also force certain compiler # flags/libs to be tested by setting these environment variables.) # -# Also sets PTHREAD_CC to any special C compiler that is needed for -# multi-threaded programs (defaults to the value of CC otherwise). (This -# is necessary on AIX to use the special cc_r compiler alias.) +# Also sets PTHREAD_CC and PTHREAD_CXX to any special C compiler that is +# needed for multi-threaded programs (defaults to the value of CC +# respectively CXX otherwise). (This is necessary on e.g. AIX to use the +# special cc_r/CC_r compiler alias.) # # NOTE: You are assumed to not only compile your program with these flags, # but also to link with them as well. For example, you might link with # $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS +# $PTHREAD_CXX $CXXFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS # # If you are only building threaded programs, you may wish to use these # variables in your default LIBS, CFLAGS, and CC: # # LIBS="$PTHREAD_LIBS $LIBS" # CFLAGS="$CFLAGS $PTHREAD_CFLAGS" +# CXXFLAGS="$CXXFLAGS $PTHREAD_CFLAGS" # CC="$PTHREAD_CC" +# CXX="$PTHREAD_CXX" # # In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant # has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to @@ -55,6 +59,7 @@ # # Copyright (c) 2008 Steven G. Johnson # Copyright (c) 2011 Daniel Richard G. +# Copyright (c) 2019 Marc Stevens # # This program is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the @@ -67,7 +72,7 @@ # Public License for more details. # # You should have received a copy of the GNU General Public License along -# with this program. If not, see . +# with this program. If not, see . # # As a special exception, the respective Autoconf Macro's copyright owner # gives unlimited permission to copy, distribute and modify the configure @@ -82,7 +87,7 @@ # modified version of the Autoconf Macro, you may extend this special # exception to the GPL to apply to your modified version as well. -#serial 23 +#serial 31 AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD]) AC_DEFUN([AX_PTHREAD], [ @@ -104,6 +109,7 @@ if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then ax_pthread_save_CFLAGS="$CFLAGS" ax_pthread_save_LIBS="$LIBS" AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"]) + AS_IF([test "x$PTHREAD_CXX" != "x"], [CXX="$PTHREAD_CXX"]) CFLAGS="$CFLAGS $PTHREAD_CFLAGS" LIBS="$PTHREAD_LIBS $LIBS" AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS]) @@ -123,10 +129,12 @@ fi # (e.g. DEC) have both -lpthread and -lpthreads, where one of the # libraries is broken (non-POSIX). -# Create a list of thread flags to try. Items starting with a "-" are -# C compiler flags, and other items are library names, except for "none" -# which indicates that we try without any flags at all, and "pthread-config" -# which is a program returning the flags for the Pth emulation library. +# Create a list of thread flags to try. Items with a "," contain both +# C compiler flags (before ",") and linker flags (after ","). Other items +# starting with a "-" are C compiler flags, and remaining items are +# library names, except for "none" which indicates that we try without +# any flags at all, and "pthread-config" which is a program returning +# the flags for the Pth emulation library. ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config" @@ -194,14 +202,47 @@ case $host_os in # that too in a future libc.) So we'll check first for the # standard Solaris way of linking pthreads (-mt -lpthread). - ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags" + ax_pthread_flags="-mt,-lpthread pthread $ax_pthread_flags" ;; esac +# Are we compiling with Clang? + +AC_CACHE_CHECK([whether $CC is Clang], + [ax_cv_PTHREAD_CLANG], + [ax_cv_PTHREAD_CLANG=no + # Note that Autoconf sets GCC=yes for Clang as well as GCC + if test "x$GCC" = "xyes"; then + AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], + [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ +# if defined(__clang__) && defined(__llvm__) + AX_PTHREAD_CC_IS_CLANG +# endif + ], + [ax_cv_PTHREAD_CLANG=yes]) + fi + ]) +ax_pthread_clang="$ax_cv_PTHREAD_CLANG" + + # GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC) +# Note that for GCC and Clang -pthread generally implies -lpthread, +# except when -nostdlib is passed. +# This is problematic using libtool to build C++ shared libraries with pthread: +# [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460 +# [2] https://bugzilla.redhat.com/show_bug.cgi?id=661333 +# [3] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=468555 +# To solve this, first try -pthread together with -lpthread for GCC + AS_IF([test "x$GCC" = "xyes"], - [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"]) + [ax_pthread_flags="-pthread,-lpthread -pthread -pthreads $ax_pthread_flags"]) + +# Clang takes -pthread (never supported any other flag), but we'll try with -lpthread first + +AS_IF([test "x$ax_pthread_clang" = "xyes"], + [ax_pthread_flags="-pthread,-lpthread -pthread"]) + # The presence of a feature test macro requesting re-entrant function # definitions is, on some systems, a strong hint that pthreads support is @@ -224,25 +265,86 @@ AS_IF([test "x$ax_pthread_check_macro" = "x--"], [ax_pthread_check_cond=0], [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"]) -# Are we compiling with Clang? -AC_CACHE_CHECK([whether $CC is Clang], - [ax_cv_PTHREAD_CLANG], - [ax_cv_PTHREAD_CLANG=no - # Note that Autoconf sets GCC=yes for Clang as well as GCC - if test "x$GCC" = "xyes"; then - AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG], - [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */ -# if defined(__clang__) && defined(__llvm__) - AX_PTHREAD_CC_IS_CLANG -# endif - ], - [ax_cv_PTHREAD_CLANG=yes]) - fi - ]) -ax_pthread_clang="$ax_cv_PTHREAD_CLANG" +if test "x$ax_pthread_ok" = "xno"; then +for ax_pthread_try_flag in $ax_pthread_flags; do + + case $ax_pthread_try_flag in + none) + AC_MSG_CHECKING([whether pthreads work without any flags]) + ;; + + *,*) + PTHREAD_CFLAGS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\1/"` + PTHREAD_LIBS=`echo $ax_pthread_try_flag | sed "s/^\(.*\),\(.*\)$/\2/"` + AC_MSG_CHECKING([whether pthreads work with "$PTHREAD_CFLAGS" and "$PTHREAD_LIBS"]) + ;; + + -*) + AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) + PTHREAD_CFLAGS="$ax_pthread_try_flag" + ;; + + pthread-config) + AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) + AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) + PTHREAD_CFLAGS="`pthread-config --cflags`" + PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" + ;; + + *) + AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) + PTHREAD_LIBS="-l$ax_pthread_try_flag" + ;; + esac + + ax_pthread_save_CFLAGS="$CFLAGS" + ax_pthread_save_LIBS="$LIBS" + CFLAGS="$CFLAGS $PTHREAD_CFLAGS" + LIBS="$PTHREAD_LIBS $LIBS" + + # Check for various functions. We must include pthread.h, + # since some functions may be macros. (On the Sequent, we + # need a special flag -Kthread to make this header compile.) + # We check for pthread_join because it is in -lpthread on IRIX + # while pthread_create is in libc. We check for pthread_attr_init + # due to DEC craziness with -lpthreads. We check for + # pthread_cleanup_push because it is one of the few pthread + # functions on Solaris that doesn't have a non-functional libc stub. + # We try pthread_create on general principles. + + AC_LINK_IFELSE([AC_LANG_PROGRAM([#include +# if $ax_pthread_check_cond +# error "$ax_pthread_check_macro must be defined" +# endif + static void *some_global = NULL; + static void routine(void *a) + { + /* To avoid any unused-parameter or + unused-but-set-parameter warning. */ + some_global = a; + } + static void *start_routine(void *a) { return a; }], + [pthread_t th; pthread_attr_t attr; + pthread_create(&th, 0, start_routine, 0); + pthread_join(th, 0); + pthread_attr_init(&attr); + pthread_cleanup_push(routine, 0); + pthread_cleanup_pop(0) /* ; */])], + [ax_pthread_ok=yes], + []) + + CFLAGS="$ax_pthread_save_CFLAGS" + LIBS="$ax_pthread_save_LIBS" + + AC_MSG_RESULT([$ax_pthread_ok]) + AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) + + PTHREAD_LIBS="" + PTHREAD_CFLAGS="" +done +fi -ax_pthread_clang_warning=no # Clang needs special handling, because older versions handle the -pthread # option in a rather... idiosyncratic way @@ -261,11 +363,6 @@ if test "x$ax_pthread_clang" = "xyes"; then # -pthread does define _REENTRANT, and while the Darwin headers # ignore this macro, third-party headers might not.) - PTHREAD_CFLAGS="-pthread" - PTHREAD_LIBS= - - ax_pthread_ok=yes - # However, older versions of Clang make a point of warning the user # that, in an invocation where only linking and no compilation is # taking place, the -pthread option has no effect ("argument unused @@ -294,7 +391,7 @@ if test "x$ax_pthread_clang" = "xyes"; then # step ax_pthread_save_ac_link="$ac_link" ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g' - ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"` + ax_pthread_link_step=`AS_ECHO(["$ac_link"]) | sed "$ax_pthread_sed"` ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)" ax_pthread_save_CFLAGS="$CFLAGS" for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do @@ -320,78 +417,7 @@ if test "x$ax_pthread_clang" = "xyes"; then fi # $ax_pthread_clang = yes -if test "x$ax_pthread_ok" = "xno"; then -for ax_pthread_try_flag in $ax_pthread_flags; do - - case $ax_pthread_try_flag in - none) - AC_MSG_CHECKING([whether pthreads work without any flags]) - ;; - - -mt,pthread) - AC_MSG_CHECKING([whether pthreads work with -mt -lpthread]) - PTHREAD_CFLAGS="-mt" - PTHREAD_LIBS="-lpthread" - ;; - - -*) - AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag]) - PTHREAD_CFLAGS="$ax_pthread_try_flag" - ;; - pthread-config) - AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no]) - AS_IF([test "x$ax_pthread_config" = "xno"], [continue]) - PTHREAD_CFLAGS="`pthread-config --cflags`" - PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`" - ;; - - *) - AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag]) - PTHREAD_LIBS="-l$ax_pthread_try_flag" - ;; - esac - - ax_pthread_save_CFLAGS="$CFLAGS" - ax_pthread_save_LIBS="$LIBS" - CFLAGS="$CFLAGS $PTHREAD_CFLAGS" - LIBS="$PTHREAD_LIBS $LIBS" - - # Check for various functions. We must include pthread.h, - # since some functions may be macros. (On the Sequent, we - # need a special flag -Kthread to make this header compile.) - # We check for pthread_join because it is in -lpthread on IRIX - # while pthread_create is in libc. We check for pthread_attr_init - # due to DEC craziness with -lpthreads. We check for - # pthread_cleanup_push because it is one of the few pthread - # functions on Solaris that doesn't have a non-functional libc stub. - # We try pthread_create on general principles. - - AC_LINK_IFELSE([AC_LANG_PROGRAM([#include -# if $ax_pthread_check_cond -# error "$ax_pthread_check_macro must be defined" -# endif - static void routine(void *a) { a = 0; } - static void *start_routine(void *a) { return a; }], - [pthread_t th; pthread_attr_t attr; - pthread_create(&th, 0, start_routine, 0); - pthread_join(th, 0); - pthread_attr_init(&attr); - pthread_cleanup_push(routine, 0); - pthread_cleanup_pop(0) /* ; */])], - [ax_pthread_ok=yes], - []) - - CFLAGS="$ax_pthread_save_CFLAGS" - LIBS="$ax_pthread_save_LIBS" - - AC_MSG_RESULT([$ax_pthread_ok]) - AS_IF([test "x$ax_pthread_ok" = "xyes"], [break]) - - PTHREAD_LIBS="" - PTHREAD_CFLAGS="" -done -fi # Various other checks: if test "x$ax_pthread_ok" = "xyes"; then @@ -438,7 +464,8 @@ if test "x$ax_pthread_ok" = "xyes"; then AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT], [ax_cv_PTHREAD_PRIO_INHERIT], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], - [[int i = PTHREAD_PRIO_INHERIT;]])], + [[int i = PTHREAD_PRIO_INHERIT; + return i;]])], [ax_cv_PTHREAD_PRIO_INHERIT=yes], [ax_cv_PTHREAD_PRIO_INHERIT=no]) ]) @@ -460,18 +487,28 @@ if test "x$ax_pthread_ok" = "xyes"; then [#handle absolute path differently from PATH based program lookup AS_CASE(["x$CC"], [x/*], - [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])], - [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])]) + [ + AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"]) + AS_IF([test "x${CXX}" != "x"], [AS_IF([AS_EXECUTABLE_P([${CXX}_r])],[PTHREAD_CXX="${CXX}_r"])]) + ], + [ + AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC]) + AS_IF([test "x${CXX}" != "x"], [AC_CHECK_PROGS([PTHREAD_CXX],[${CXX}_r],[$CXX])]) + ] + ) + ]) ;; esac fi fi test -n "$PTHREAD_CC" || PTHREAD_CC="$CC" +test -n "$PTHREAD_CXX" || PTHREAD_CXX="$CXX" AC_SUBST([PTHREAD_LIBS]) AC_SUBST([PTHREAD_CFLAGS]) AC_SUBST([PTHREAD_CC]) +AC_SUBST([PTHREAD_CXX]) # Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND: if test "x$ax_pthread_ok" = "xyes"; then From dridi.boukelmoune at gmail.com Wed Oct 4 11:18:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 4 Oct 2023 11:18:05 +0000 (UTC) Subject: [master] 8997e88da Renovate autoconf and varnish.m4 Message-ID: <20231004111805.A292E11C702@lists.varnish-cache.org> commit 8997e88dacb138311cb22de05889b97c3c985ef9 Author: Nils Goroll Date: Wed Apr 27 12:44:53 2022 +0200 Renovate autoconf and varnish.m4 this is required for autoconf 2.71, but I have kept the required version at 2.69 and tested that the changes are compatible. Most of the changes come from autoupdate, with this change: AC_PROG_CC_STDC is obsolete, but older autoconf versions do not set the highest possible c standard. So we keep AC_PROG_CC_C99 because we actually require c99, while AC_PROG_CC_STDC could fall back to c89 For varnish.m4, we should apply the same canonical settings as for varnishd itself diff --git a/configure.ac b/configure.ac index 80ba619ee..adb25c713 100644 --- a/configure.ac +++ b/configure.ac @@ -1,9 +1,9 @@ -AC_PREREQ(2.69) +AC_PREREQ([2.69]) AC_COPYRIGHT([Copyright (c) 2006 Verdens Gang AS Copyright (c) 2006-2023 Varnish Software Copyright 2010-2023 UPLEX - Nils Goroll Systemoptimierung]) AC_REVISION([$Id$]) -AC_INIT([Varnish], [trunk], [varnish-dev at varnish-cache.org]) +AC_INIT([Varnish],[trunk],[varnish-dev at varnish-cache.org]) AC_CONFIG_SRCDIR(include/miniobj.h) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_MACRO_DIR([m4]) @@ -23,7 +23,7 @@ OCFLAGS="$CFLAGS" EXTCFLAGS="$CFLAGS" AC_SUBST(EXTCFLAGS) -AC_CANONICAL_SYSTEM +AC_CANONICAL_TARGET AC_LANG(C) AM_MAINTAINER_MODE([disable]) @@ -31,12 +31,13 @@ AM_INIT_AUTOMAKE([1.13 foreign color-tests parallel-tests subdir-objects]) AM_EXTRA_RECURSIVE_TARGETS([recheck]) AM_SILENT_RULES([yes]) AC_DISABLE_STATIC -AC_PROG_LIBTOOL +LT_INIT # Checks for programs. -AC_GNU_SOURCE AC_PROG_CC -AC_PROG_CC_STDC +# XXX remove the next line when AC_PREREQ >= 2.70 and +# replace with check of $ac_prog_cc_stdc +AC_PROG_CC_C99 AX_PTHREAD(,[AC_MSG_ERROR([Could not configure pthreads support])]) @@ -106,7 +107,7 @@ AC_CHECK_HEADERS([umem.h]) AC_CHECK_HEADERS([stdatomic.h]) # XXX: This _may_ be for OS/X -AC_CHECK_LIBM +LT_LIB_M AC_SUBST(LIBM) m4_ifndef([PKG_PROG_PKG_CONFIG], [m4_fatal([pkg.m4 missing, please install pkg-config])]) @@ -211,7 +212,6 @@ AC_CHECK_HEADERS([ncursesw/curses.h ncursesw.h ncurses/curses.h ncurses.h curses CFLAGS="${save_CFLAGS}" # Checks for header files. -AC_HEADER_STDC AC_CHECK_HEADERS([sys/endian.h]) AC_CHECK_HEADERS([sys/filio.h]) AC_CHECK_HEADERS([sys/mount.h], [], [], [#include ]) diff --git a/varnish.m4 b/varnish.m4 index cdf0392bf..80846579c 100644 --- a/varnish.m4 +++ b/varnish.m4 @@ -145,15 +145,17 @@ AC_DEFUN([_VARNISH_VMOD_LDFLAGS], [ # _VARNISH_VMOD_CONFIG # -------------------- AC_DEFUN([_VARNISH_VMOD_CONFIG], [ + dnl Check the VMOD toolchain + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_REQUIRE([AC_LANG_C]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_PROG_CC_C99]) AC_REQUIRE([_VARNISH_PKG_CONFIG]) AC_REQUIRE([_VARNISH_CHECK_DEVEL]) AC_REQUIRE([_VARNISH_CHECK_PYTHON]) AC_REQUIRE([_VARNISH_VMOD_LDFLAGS]) - dnl Check the VMOD toolchain - AC_REQUIRE([AC_LANG_C]) - AC_REQUIRE([AC_PROG_CC_C99]) AC_REQUIRE([AC_PROG_CPP]) AC_REQUIRE([AC_PROG_CPP_WERROR]) From nils.goroll at uplex.de Fri Oct 6 07:32:06 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Fri, 6 Oct 2023 07:32:06 +0000 (UTC) Subject: [master] 3110d6f41 Fix .circleci/config.yml to match changes in configure.ac Message-ID: <20231006073206.42EEB1022C4@lists.varnish-cache.org> commit 3110d6f41a45eeba9f4d2be6314b0684732d4428 Author: Simon Stridsberg Date: Fri Oct 6 09:01:41 2023 +0200 Fix .circleci/config.yml to match changes in configure.ac diff --git a/.circleci/config.yml b/.circleci/config.yml index 1b3dbce4e..5551e8dd7 100644 --- a/.circleci/config.yml +++ b/.circleci/config.yml @@ -82,9 +82,9 @@ jobs: touch .is_weekly # If version is "trunk", override version to add date if grep 'AC_INIT.*trunk.*' ./configure.ac; then - sed -i -e "s/AC_INIT(\[\(.*\)\], \[\(.*\)\], \[\(.*\)\])/AC_INIT([\1], [$(date +%Y%m%d)], [\3])/" ./configure.ac + sed -i -e "s/AC_INIT(\[\(.*\)\],\[\(.*\)\],\[\(.*\)\])/AC_INIT([\1],[$(date +%Y%m%d)],[\3])/" ./configure.ac else - sed -i -e "s/AC_INIT(\[\(.*\)\], \[\(.*\)\], \[\(.*\)\])/AC_INIT([\1], [\2-$(date +%Y%m%d)], [\3])/" ./configure.ac + sed -i -e "s/AC_INIT(\[\(.*\)\],\[\(.*\)\],\[\(.*\)\])/AC_INIT([\1],[\2-$(date +%Y%m%d)],[\3])/" ./configure.ac fi ./autogen.des make dist -j 16 From phk at FreeBSD.org Wed Oct 11 07:36:11 2023 From: phk at FreeBSD.org (Poul-Henning Kamp) Date: Wed, 11 Oct 2023 07:36:11 +0000 (UTC) Subject: [master] cd2cfbd52 Make incomplete commands in -I cli_file a fatal error. Message-ID: <20231011073611.6E8E2103A7E@lists.varnish-cache.org> commit cd2cfbd522f7dd2dd143e6c0a191ddc73da8f8d9 Author: Poul-Henning Kamp Date: Wed Oct 11 07:34:33 2023 +0000 Make incomplete commands in -I cli_file a fatal error. Fixes: 3995 diff --git a/bin/varnishd/mgt/mgt_cli.c b/bin/varnishd/mgt/mgt_cli.c index 21d6bc2d3..c3cada3d9 100644 --- a/bin/varnishd/mgt/mgt_cli.c +++ b/bin/varnishd/mgt/mgt_cli.c @@ -341,8 +341,11 @@ mgt_cli_cb_after(const struct cli *cli) MGT_Complain(C_CLI, "CLI %s Wr %03u %s", cli->ident, cli->result, VSB_data(cli->sb)); - if (cli->priv == stderr && - cli->result != CLIS_OK && *VSB_data(cli->cmd) != '-') { + if (cli->priv != stderr) + return; + if (cli->result == CLIS_TRUNCATED) + ARGV_ERR("-I file had incomplete CLI command at the end\n"); + if (cli->result != CLIS_OK && *VSB_data(cli->cmd) != '-') { ARGV_ERR("-I file CLI command failed (%d)\n%s\n", cli->result, VSB_data(cli->sb)); } diff --git a/bin/varnishtest/tests/u00000.vtc b/bin/varnishtest/tests/u00000.vtc index 11cbdb4a0..8efeb3bc0 100644 --- a/bin/varnishtest/tests/u00000.vtc +++ b/bin/varnishtest/tests/u00000.vtc @@ -169,3 +169,23 @@ shell -err -expect {Cannot read -f file} { } # varnishd -spersistent is tested in p00000.vtc + +# Test that incomplete CLI commands in -I causes failure + +process p1 { + echo -n foobar > ${tmpdir}/_foobar + exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 +} -expect-exit 2 -start + +process p1 -expect-text 0 0 "-I file had incomplete CLI command at the end" +process p1 -screen-dump +process p1 -wait + +process p1 { + echo 'foobar << blabla > ${tmpdir}/_foobar + exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 +} -expect-exit 2 -start + +process p1 -expect-text 0 0 "-I file had incomplete CLI command at the end" +process p1 -screen-dump +process p1 -wait diff --git a/lib/libvarnish/vcli_serve.c b/lib/libvarnish/vcli_serve.c index 40b46947f..9dee27e36 100644 --- a/lib/libvarnish/vcli_serve.c +++ b/lib/libvarnish/vcli_serve.c @@ -522,6 +522,13 @@ cls_close_fd(struct VCLS *cs, struct VCLS_fd *cfd) CHECK_OBJ_NOTNULL(cfd, VCLS_FD_MAGIC); VTAILQ_REMOVE(&cs->fds, cfd, list); + if (cfd->cli->cmd != NULL) { + (void)VSB_finish(cfd->cli->cmd); + cfd->cli->result = CLIS_TRUNCATED; + if (cs->after != NULL) + cs->after(cfd->cli); + VSB_destroy(&cfd->cli->cmd); + } cs->nfd--; VSB_destroy(&cfd->cli->sb); if (cfd->closefunc != NULL) From dridi.boukelmoune at gmail.com Wed Oct 11 07:45:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 11 Oct 2023 07:45:06 +0000 (UTC) Subject: [master] d0d05af06 varnishd.7: Mention #3995 Message-ID: <20231011074506.7FEE6104050@lists.varnish-cache.org> commit d0d05af067902da51ab02a1bbf03c13f0fde821a Author: Dridi Boukelmoune Date: Wed Oct 11 09:42:10 2023 +0200 varnishd.7: Mention #3995 diff --git a/doc/sphinx/reference/varnishd.rst b/doc/sphinx/reference/varnishd.rst index 126ef802b..16aa63260 100644 --- a/doc/sphinx/reference/varnishd.rst +++ b/doc/sphinx/reference/varnishd.rst @@ -525,7 +525,8 @@ startup:: vcl.use main Every line in the file, including the last line, must be terminated by -a newline or carriage return. +a newline or carriage return or is otherwise considered truncated, which +is a fatal error. If a command in the file is prefixed with '-', failure will not abort the startup. From phk at FreeBSD.org Wed Oct 11 12:23:05 2023 From: phk at FreeBSD.org (Poul-Henning Kamp) Date: Wed, 11 Oct 2023 12:23:05 +0000 (UTC) Subject: [master] 101ffbb46 Better fix & test for incomplete << nonce cli commands. Message-ID: <20231011122305.9873410F6BE@lists.varnish-cache.org> commit 101ffbb46a3be84d7c5a6dd221e3e0949d08fd6e Author: Poul-Henning Kamp Date: Wed Oct 11 12:22:01 2023 +0000 Better fix & test for incomplete << nonce cli commands. Fixes #3995 diff --git a/bin/varnishtest/tests/u00000.vtc b/bin/varnishtest/tests/u00000.vtc index 8efeb3bc0..831dd9eac 100644 --- a/bin/varnishtest/tests/u00000.vtc +++ b/bin/varnishtest/tests/u00000.vtc @@ -181,11 +181,11 @@ process p1 -expect-text 0 0 "-I file had incomplete CLI command at the end" process p1 -screen-dump process p1 -wait -process p1 { - echo 'foobar << blabla > ${tmpdir}/_foobar +process p2 { + echo 'foobar << blabla' > ${tmpdir}/_foobar exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 } -expect-exit 2 -start -process p1 -expect-text 0 0 "-I file had incomplete CLI command at the end" -process p1 -screen-dump -process p1 -wait +process p2 -expect-text 0 0 "-I file had incomplete CLI command at the end" +process p2 -screen-dump +process p2 -wait diff --git a/lib/libvarnish/vcli_serve.c b/lib/libvarnish/vcli_serve.c index 9dee27e36..dbb384a0f 100644 --- a/lib/libvarnish/vcli_serve.c +++ b/lib/libvarnish/vcli_serve.c @@ -428,6 +428,7 @@ cls_feed(struct VCLS_fd *cfd, const char *p, const char *e) if (*cfd->match == '\0' && (*p == '\r' || *p == '\n')) { AZ(VSB_finish(cfd->last_arg)); // NB: VAV lib internals trusted + cfd->match = NULL; REPLACE(cfd->argv[cfd->argc - 1], NULL); REPLACE(cfd->argv[cfd->argc - 2], NULL); cfd->argv[cfd->argc - 2] = @@ -522,7 +523,12 @@ cls_close_fd(struct VCLS *cs, struct VCLS_fd *cfd) CHECK_OBJ_NOTNULL(cfd, VCLS_FD_MAGIC); VTAILQ_REMOVE(&cs->fds, cfd, list); - if (cfd->cli->cmd != NULL) { + if (cfd->match != NULL) { + cfd->cli->result = CLIS_TRUNCATED; + if (cs->after != NULL) + cs->after(cfd->cli); + VSB_destroy(&cfd->last_arg); + } else if (cfd->cli->cmd != NULL) { (void)VSB_finish(cfd->cli->cmd); cfd->cli->result = CLIS_TRUNCATED; if (cs->after != NULL) From nils.goroll at uplex.de Fri Oct 13 09:40:07 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Fri, 13 Oct 2023 09:40:07 +0000 (UTC) Subject: [master] 01908a71a Polish "Security first" rst Message-ID: <20231013094007.1C8AA60408@lists.varnish-cache.org> commit 01908a71ae0de792255f24aeb50962e2a000fa60 Author: Nils Goroll Date: Fri Oct 13 11:37:55 2023 +0200 Polish "Security first" rst diff --git a/doc/sphinx/users-guide/run_security.rst b/doc/sphinx/users-guide/run_security.rst index ad226fd36..121b47f6a 100644 --- a/doc/sphinx/users-guide/run_security.rst +++ b/doc/sphinx/users-guide/run_security.rst @@ -52,52 +52,52 @@ CLI interface access The command line interface can be accessed in three ways. -`varnishd` can be told to listen and offer CLI connections -on a TCP socket. You can bind the socket to pretty -much anything the kernel will accept:: +:ref:`varnishd(1)` can be told to listen and offer CLI connections on +a TCP socket. You can bind the socket to pretty much anything the +kernel will accept:: -T 127.0.0.1:631 -T localhost:9999 -T 192.168.1.1:34 -T '[fe80::1]:8082' -The default is ``-T localhost:0`` which will pick a random -port number, which `varnishadm(8)` can learn from the shared -memory. +The default is ``-T localhost:0`` which will pick a random port +number, which :ref:`varnishadm(1)` can learn from the shared memory. -By using a "localhost" address, you restrict CLI access -to the local machine. +By using a ``localhost`` address, you restrict CLI access to the local +machine. You can also bind the CLI port to an IP address reachable across the net, and let other machines connect directly. -This gives you no secrecy, i.e. the CLI commands will -go across the network as ASCII text with no encryption, but -the -S/PSK authentication requires the remote end to know -the shared secret. +This gives you no secrecy, i.e. the CLI commands will go across the +network as ASCII text with no encryption, but the ``-S`` / pre shared +key (`PSK`_) authentication requires the remote end to know the shared +secret. -Alternatively you can bind the CLI port to a 'localhost' address, +Alternatively you can bind the CLI port to a ``localhost`` address, and give remote users access via a secure connection to the local machine, using ssh/VPN or similar. -If you use `ssh` you can restrict which commands each user can execute -to just `varnishadm`, or even use a wrapper scripts around `varnishadm` -to allow specific CLI commands. +If you use `ssh(1)` you can restrict which commands each user can +execute to just :ref:`varnishadm(1)`, or even use a wrapper scripts +around :ref:`varnishadm(1)` to allow specific CLI commands. -It is also possible to configure `varnishd` for "reverse mode", using -the '-M' argument. In that case `varnishd` will attempt to open a -TCP connection to the specified address, and initiate a CLI connection -to your central Varnish management facility. +It is also possible to configure :ref:`varnishd(1)` for "reverse +mode", using the ``-M`` argument. In that case :ref:`varnishd(1)` +will attempt to open a TCP connection to the specified address, and +initiate a CLI connection to your central Varnish management facility. .. XXX:Maybe a sample command here with a brief explanation? benc The connection in this case is also without encryption, but -the remote end must still authenticate using -S/PSK. +the remote end must still authenticate using ``-S``\ /`PSK`_. -Finally, if you run varnishd with the '-d' option, you get a CLI -command on stdin/stdout, but since you started the process, it -would be hard to prevent you getting CLI access, wouldn't it ? +Finally, if you run varnishd with the ``-d`` option, you get a CLI +command on stdin/stdout, but since you started the process, it would +be hard to prevent you getting CLI access, wouldn't it ? +.. _PSK: CLI interface authentication ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -106,37 +106,38 @@ By default the CLI interface is protected with a simple, yet powerful "Pre Shared Key" authentication method, which do not provide secrecy (ie: The CLI commands and responses are not encrypted). -The way -S/PSK works is really simple: During startup a file is -created with a random content and the file is only accessible to -the user who started `varnishd` (or the superuser). +The way ``-S``\ /PSK works is really simple: During startup a file is +created with a random content and the file is only accessible to the +user who started :ref:`varnishd(1)` (or the superuser). To authenticate and use a CLI connection, you need to know the -contents of that file, in order to answer the cryptographic -challenge `varnishd` issues, see :ref:`ref_psk_auth`. +contents of that file, in order to answer the cryptographic challenge +:ref:`varnishd(1)` issues, see :ref:`ref_psk_auth`. -`varnishadm` uses all of this to restrict access, it will only function, -provided it can read the secret file. +:ref:`varnishadm(1)` uses all of this to restrict access, it will only +function, provided it can read the secret file. -If you want to allow other users, local or remote, to be able to access -CLI connections, you must create your own secret file and make it possible -for (only!) these users to read it. +If you want to allow other users, local or remote, to be able to +access CLI connections, you must create your own secret file and make +it possible for (only!) these users to read it. A good way to create the secret file is:: dd if=/dev/random of=/etc/varnish_secret count=1 -When you start `varnishd`, you specify the filename with '-S', and -it goes without saying that the `varnishd` master process needs -to be able to read the file too. +When you start :ref:`varnishd(1)`, you specify the filename with '-S', +and it goes without saying that the :ref:`varnishd(1)` master process +needs to be able to read the file too. -You can change the contents of the secret file while `varnishd` -runs, it is read every time a CLI connection is authenticated. +You can change the contents of the secret file while +:ref:`varnishd(1)` runs, it is read every time a CLI connection is +authenticated. -On the local system, `varnishadm` can retrieve the filename from -shared memory, but on remote systems, you need to give `varnishadm` -a copy of the secret file, with the -S argument. +On the local system, :ref:`varnishadm(1)` can retrieve the filename +from shared memory, but on remote systems, you need to give +:ref:`varnishadm(1)` a copy of the secret file, with the -S argument. -If you want to disable -S/PSK authentication, use an ``-S none`` +If you want to disable ``-S``\ /PSK authentication, use an ``-S none`` argument to varnishd:: varnishd [...] -S none [...] @@ -155,7 +156,8 @@ HTTP service, but a few can do more damage than others: Execute arbitrary programs :ref:`ref_param_vcc_allow_inline_c` - Allow inline C in VCL, which would allow any C code from VCL to be executed by Varnish. + Allow inline C in VCL, which would allow any C code from VCL + to be executed by Varnish. Furthermore you may want to look at and lock down: @@ -163,12 +165,13 @@ Furthermore you may want to look at and lock down: Log all CLI commands to `syslog(8)`, so you know what goes on. :ref:`ref_param_vcc_unsafe_path` - Restrict VCL/VMODs to :ref:`ref_param_vcl_path` and :ref:`ref_param_vmod_path` + Restrict VCL/VMODs to :ref:`ref_param_vcl_path` and + :ref:`ref_param_vmod_path` :ref:`ref_param_vmod_path` - The directory (or colon separated list of directories) where - Varnish will look for modules. This could potentially be - used to load rogue modules into Varnish. + The directory (or colon separated list of directories) where + Varnish will look for modules. This could potentially be + used to load rogue modules into Varnish. The CLI interface ----------------- @@ -181,12 +184,11 @@ As described above, some of the damage can be limited by restricting certain parameters, but that will only protect the local filesystem, and operating system, it will not protect your HTTP service. -We do not currently have a way to restrict specific CLI commands -to specific CLI connections. One way to get such an effect is to -"wrap" all CLI access in pre-approved scripts which use `varnishadm(1)` - -to submit the sanitized CLI commands, and restrict a remote user -to only those scripts, for instance using sshd(8)'s configuration. +We do not currently have a way to restrict specific CLI commands to +specific CLI connections. One way to get such an effect is to "wrap" +all CLI access in pre-approved scripts which use :ref:`varnishadm(1)` +to submit the sanitized CLI commands, and restrict a remote user to +only those scripts, for instance using sshd(8)'s configuration. VCL programs ------------ @@ -198,11 +200,13 @@ Both of these mechanisms allow execution of arbitrary code and will thus allow a person to get access to the machine, with the privileges of the child process. -If `varnishd` is started as root/superuser, we sandbox the child -process, using whatever facilities are available on the operating -system, but if `varnishd` is not started as root/superuser, this is -not possible. No, don't ask me why you have to be superuser to -lower the privilege of a child process... +If :ref:`varnishd(1)` is started as root/superuser, we sandbox the +child process, using whatever facilities are available on the +operating system, but if :ref:`varnishd(1)` is not started as +root/superuser, this is not possible. No, don't ask me why you have to +be superuser to lower the privilege of a child process... + +.. XXX the above is not correct for the solaris jail Inline-C is disabled by default since Varnish version 4, so unless you enable it, you don't have to worry about it. @@ -229,4 +233,3 @@ to various kinds of attacks and subversive activities. If you have "administrative" HTTP requests, for instance PURGE requests, we strongly recommend that you restrict them to trusted IP numbers/nets using VCL's :ref:`vcl_syntax_acl`. - From nils.goroll at uplex.de Fri Oct 13 09:40:06 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Fri, 13 Oct 2023 09:40:06 +0000 (UTC) Subject: [master] 051aa94f5 Docfix: Disable CLI authentication Message-ID: <20231013094007.098F160405@lists.varnish-cache.org> commit 051aa94f5eb8a6df83b75e97a75fcb355e45a032 Author: Nils Goroll Date: Fri Oct 13 11:06:24 2023 +0200 Docfix: Disable CLI authentication diff --git a/doc/sphinx/users-guide/run_security.rst b/doc/sphinx/users-guide/run_security.rst index 7265b1a7f..ad226fd36 100644 --- a/doc/sphinx/users-guide/run_security.rst +++ b/doc/sphinx/users-guide/run_security.rst @@ -136,10 +136,10 @@ On the local system, `varnishadm` can retrieve the filename from shared memory, but on remote systems, you need to give `varnishadm` a copy of the secret file, with the -S argument. -If you want to disable -S/PSK authentication, specify '-S' with -an empty argument to varnishd:: +If you want to disable -S/PSK authentication, use an ``-S none`` +argument to varnishd:: - varnishd [...] -S "" [...] + varnishd [...] -S none [...] Parameters ^^^^^^^^^^ From dridi.boukelmoune at gmail.com Mon Oct 16 08:32:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 16 Oct 2023 08:32:06 +0000 (UTC) Subject: [master] 2c38ba01b Loop over FDs if close_range fails. Message-ID: <20231016083206.B476F114543@lists.varnish-cache.org> commit 2c38ba01bcd7de605163c63e2390594e54e5ec3c Author: Simon Stridsberg Date: Fri Sep 22 09:08:47 2023 +0200 Loop over FDs if close_range fails. diff --git a/lib/libvarnish/vsub.c b/lib/libvarnish/vsub.c index 27caec46d..c1c1ddfcc 100644 --- a/lib/libvarnish/vsub.c +++ b/lib/libvarnish/vsub.c @@ -38,9 +38,7 @@ #include // Solaris closefrom(3c) #include #include // BSD/Linux close_range(2) -#ifdef HAVE_WORKING_CLOSE_RANGE -#elif HAVE_CLOSEFROM -#else +#ifndef HAVE_CLOSEFROM # include #endif @@ -67,13 +65,14 @@ VSUB_closefrom(int fd) assert(fd >= 0); -#ifdef HAVE_WORKING_CLOSE_RANGE - AZ(close_range(fd, ~0U, 0)); - return; -#elif HAVE_CLOSEFROM +#ifdef HAVE_CLOSEFROM closefrom(fd); return; #else +# ifdef HAVE_WORKING_CLOSE_RANGE + if (close_range(fd, ~0U, 0) == 0) + return; +# endif char buf[128]; int i, maxfd = 0; DIR *d; From dridi.boukelmoune at gmail.com Mon Oct 16 08:36:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 16 Oct 2023 08:36:06 +0000 (UTC) Subject: [7.4] f0cf401c8 Loop over FDs if close_range fails. Message-ID: <20231016083606.55DC611497B@lists.varnish-cache.org> commit f0cf401c8da706d837bed40528271b048110a79e Author: Simon Stridsberg Date: Fri Sep 22 09:08:47 2023 +0200 Loop over FDs if close_range fails. diff --git a/lib/libvarnish/vsub.c b/lib/libvarnish/vsub.c index 27caec46d..c1c1ddfcc 100644 --- a/lib/libvarnish/vsub.c +++ b/lib/libvarnish/vsub.c @@ -38,9 +38,7 @@ #include // Solaris closefrom(3c) #include #include // BSD/Linux close_range(2) -#ifdef HAVE_WORKING_CLOSE_RANGE -#elif HAVE_CLOSEFROM -#else +#ifndef HAVE_CLOSEFROM # include #endif @@ -67,13 +65,14 @@ VSUB_closefrom(int fd) assert(fd >= 0); -#ifdef HAVE_WORKING_CLOSE_RANGE - AZ(close_range(fd, ~0U, 0)); - return; -#elif HAVE_CLOSEFROM +#ifdef HAVE_CLOSEFROM closefrom(fd); return; #else +# ifdef HAVE_WORKING_CLOSE_RANGE + if (close_range(fd, ~0U, 0) == 0) + return; +# endif char buf[128]; int i, maxfd = 0; DIR *d; From nils.goroll at uplex.de Tue Oct 17 11:38:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Tue, 17 Oct 2023 11:38:05 +0000 (UTC) Subject: [master] 7332bdf09 Bump cli_limit to fit param.show -j with more parameters coming Message-ID: <20231017113805.815F79D44@lists.varnish-cache.org> commit 7332bdf09cc2bc6c352ea061f634131b9b6c3270 Author: Nils Goroll Date: Mon Oct 16 19:14:56 2023 +0200 Bump cli_limit to fit param.show -j with more parameters coming diff --git a/include/tbl/params.h b/include/tbl/params.h index 83054eef3..cb7b7f5aa 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -316,7 +316,7 @@ PARAM_SIMPLE( /* type */ bytes_u, /* min */ "128b", /* max */ "99999999b", - /* def */ "48k", + /* def */ "64k", /* units */ "bytes", /* descr */ "Maximum size of CLI response. If the response exceeds this " From daghf at varnish-software.com Tue Oct 17 13:59:06 2023 From: daghf at varnish-software.com (Dag Haavi Finstad) Date: Tue, 17 Oct 2023 13:59:06 +0000 (UTC) Subject: [master] cafeb6c12 h2: Add a rate limit facility for h/2 RST handling Message-ID: <20231017135906.14A806EFCC@lists.varnish-cache.org> commit cafeb6c12248740d461ba2b37fb295aab8cb968f Author: Dag Haavi Finstad Date: Thu Oct 12 10:50:55 2023 +0200 h2: Add a rate limit facility for h/2 RST handling This adds parameters h2_rst_allowance and h2_rst_allowance_period, which govern the rate of which we allow clients to reset h/2 streams. If the limit is exceeded the connection is closed. Mitigates: #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index eb6e8f6a9..9457c99f2 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -193,6 +193,8 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + double rst_budget; + vtim_real last_rst; }; #define ASSERT_RXTHR(h2) do {assert(h2->rxthr == pthread_self());} while(0) diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index c62a8c429..272082498 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -320,9 +320,41 @@ h2_rx_push_promise(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) /********************************************************************** */ +static h2_error +h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) +{ + vtim_real now; + vtim_dur d; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + ASSERT_RXTHR(h2); + CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); + + if (cache_param->h2_rapid_reset_limit == 0) + return (0); + + now = VTIM_real(); + d = now - h2->last_rst; + h2->rst_budget += cache_param->h2_rapid_reset_limit * d / + cache_param->h2_rapid_reset_period; + h2->rst_budget = vmin_t(double, h2->rst_budget, + cache_param->h2_rapid_reset_limit); + h2->last_rst = now; + + if (h2->rst_budget < 1.0) { + Lck_Lock(&h2->sess->mtx); + VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_ENHANCE_YOUR_CALM); + } + h2->rst_budget -= 1.0; + return (0); +} + static h2_error v_matchproto_(h2_rxframe_f) h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) { + h2_error h2e; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); ASSERT_RXTHR(h2); @@ -332,8 +364,9 @@ h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (H2CE_FRAME_SIZE_ERROR); if (r2 == NULL) return (0); + h2e = h2_rapid_reset(wrk, h2, r2); h2_kill_req(wrk, h2, r2, h2_streamerror(vbe32dec(h2->rxf_data))); - return (0); + return (h2e); } /********************************************************************** diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index e3e3c116c..672b40d64 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,6 +127,9 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; + h2->rst_budget = cache_param->h2_rapid_reset_limit; + h2->last_rst = sp->t_open; + AZ(isnan(h2->last_rst)); AZ(VHT_Init(h2->dectbl, h2->local_settings.header_table_size)); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc new file mode 100644 index 000000000..5864c837f --- /dev/null +++ b/bin/varnishtest/tests/r03996.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 rapid reset" + +barrier b1 sock 5 + +server s1 { + rxreq + txresp +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -cliok "param.set h2_rapid_reset_limit 3" + +varnish v1 -vcl+backend { + import vtc; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + } + +} -start + +client c1 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + + stream 1 { + txreq + txrst + } -run + stream 3 { + txreq + txrst + } -run + stream 5 { + txreq + txrst + } -run + stream 7 { + txreq + txrst + } -run + + barrier b1 sync + stream 0 -wait +} -run + diff --git a/include/tbl/params.h b/include/tbl/params.h index cb7b7f5aa..cbea1bc31 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,34 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset_limit, + /* typ */ uint, + /* min */ "0", + /* max */ NULL, + /* def */ "0", + /* units */ NULL, + /* descr */ + "HTTP2 RST Allowance.\n" + "Specifies the maximum number of allowed stream resets issued by\n" + "a client over a time period before the connection is closed.\n" + "Setting this parameter to 0 disables the limit.", + /* flags */ EXPERIMENTAL, +) + +PARAM_SIMPLE( + /* name */ h2_rapid_reset_period, + /* typ */ timeout, + /* min */ "1.000", + /* max */ NULL, + /* def */ "60.000", + /* units */ "seconds", + /* descr */ + "HTTP2 sliding window duration for h2_rapid_reset_limit.", + /* flags */ EXPERIMENTAL|WIZARD, +) + + /*-------------------------------------------------------------------- * Memory pool parameters */ From daghf at varnish-software.com Tue Oct 17 13:59:06 2023 From: daghf at varnish-software.com (Dag Haavi Finstad) Date: Tue, 17 Oct 2023 13:59:06 +0000 (UTC) Subject: [master] 0c4dccc47 Introduce RAPID_RESET as a sess_close reason Message-ID: <20231017135906.339E76EFCF@lists.varnish-cache.org> commit 0c4dccc477d5a806acbbb49675ff38726ad1326c Author: Dag Haavi Finstad Date: Tue Oct 17 11:20:11 2023 +0200 Introduce RAPID_RESET as a sess_close reason diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 272082498..a464a4508 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -46,6 +46,7 @@ #include "vtcp.h" #include "vtim.h" +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1,r}}; #define H2EC2(U,v,r,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0,r}}; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) @@ -345,7 +346,7 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Lock(&h2->sess->mtx); VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); Lck_Unlock(&h2->sess->mtx); - return (H2CE_ENHANCE_YOUR_CALM); + return (H2CE_RAPID_RESET); } h2->rst_budget -= 1.0; return (0); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 5864c837f..6feef4963 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -47,3 +47,4 @@ client c1 { stream 0 -wait } -run +varnish v1 -expect sc_rapid_reset == 1 diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index 2cd06f011..c6c6bed89 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -147,5 +147,17 @@ H2_ERROR( /* descr */ "Use HTTP/1.1 for the request" ) +#ifdef H2_CUSTOM_ERRORS +H2_ERROR( + /* name */ RAPID_RESET, + /* val */ 11, /* ENHANCE_YOUR_CALM */ + /* types */ 1, + /* reason */ SC_RAPID_RESET, + /* descr */ "http/2 rapid reset detected" +) + +# undef H2_CUSTOM_ERRORS +#endif + #undef H2_ERROR /*lint -restore */ diff --git a/include/tbl/sess_close.h b/include/tbl/sess_close.h index b91c93951..f15d34a64 100644 --- a/include/tbl/sess_close.h +++ b/include/tbl/sess_close.h @@ -50,6 +50,7 @@ SESS_CLOSE(PIPE_OVERFLOW, pipe_overflow,1, "Session pipe overflow") SESS_CLOSE(RANGE_SHORT, range_short, 1, "Insufficient data for range") SESS_CLOSE(REQ_HTTP20, req_http20, 1, "HTTP2 not accepted") SESS_CLOSE(VCL_FAILURE, vcl_failure, 1, "VCL failure") +SESS_CLOSE(RAPID_RESET, rapid_reset, 1, "HTTP2 rapid reset") #undef SESS_CLOSE /*lint -restore */ diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index a4049fccb..1f63b45a4 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -634,6 +634,14 @@ Number of session closes with Error VCL_FAILURE (VCL failure) +.. varnish_vsc:: sc_rapid_reset + :level: diag + :oneliner: Session Err RAPID_RESET + + Number of times we failed an http/2 session because it hit its + configured limits for the number of permitted rapid stream + resets. + .. varnish_vsc:: client_resp_500 :level: diag :group: wrk From daghf at varnish-software.com Tue Oct 17 13:59:06 2023 From: daghf at varnish-software.com (Dag Haavi Finstad) Date: Tue, 17 Oct 2023 13:59:06 +0000 (UTC) Subject: [master] a89603149 Add param h2_rapid_reset Message-ID: <20231017135906.595D76EFD3@lists.varnish-cache.org> commit a8960314928904b6f84665095361371551c1201f Author: Dag Haavi Finstad Date: Tue Oct 17 11:27:44 2023 +0200 Add param h2_rapid_reset Only RST frames received earlier than this duration will be considered rapid. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index a464a4508..50504c021 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -335,6 +335,11 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (0); now = VTIM_real(); + CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); + AN(r2->req->t_first); + if (now - r2->req->t_first > cache_param->h2_rapid_reset) + return (0); + d = now - h2->last_rst; h2->rst_budget += cache_param->h2_rapid_reset_limit * d / cache_param->h2_rapid_reset_period; diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 6feef4963..3fee3706c 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -10,6 +10,7 @@ server s1 { varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set h2_rapid_reset_limit 3" +varnish v1 -cliok "param.set h2_rapid_reset 5" varnish v1 -vcl+backend { import vtc; diff --git a/include/tbl/params.h b/include/tbl/params.h index cbea1bc31..530b60c39 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,20 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset, + /* typ */ timeout, + /* min */ "0.000", + /* max */ NULL, + /* def */ "1.000", + /* units */ "seconds", + /* descr */ + "The upper threshold for how rapid an http/2 RST has to come for " + "it to be treated as suspect and subjected to the rate limits " + "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + /* flags */ EXPERIMENTAL, +) + PARAM_SIMPLE( /* name */ h2_rapid_reset_limit, /* typ */ uint, @@ -1284,7 +1298,6 @@ PARAM_SIMPLE( /* flags */ EXPERIMENTAL|WIZARD, ) - /*-------------------------------------------------------------------- * Memory pool parameters */ From nils.goroll at uplex.de Tue Oct 17 14:07:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Tue, 17 Oct 2023 14:07:05 +0000 (UTC) Subject: [master] 151f4d50f Polish h2_rapid_reset docs Message-ID: <20231017140705.4BAB2100815@lists.varnish-cache.org> commit 151f4d50f98ed43ad04b60208e65697ddb71dbf7 Author: Nils Goroll Date: Tue Oct 17 13:30:01 2023 +0200 Polish h2_rapid_reset docs diff --git a/include/tbl/params.h b/include/tbl/params.h index 530b60c39..bece5c83d 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1265,9 +1265,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come for " - "it to be treated as suspect and subjected to the rate limits " - "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + "The upper threshold for how rapid an http/2 RST has to come after " + "a HEADERS frame for it to be treated as suspect and subjected to " + "the rate limits specified by h2_rapid_reset_limit and " + "h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From phk at FreeBSD.org Tue Oct 17 14:36:05 2023 From: phk at FreeBSD.org (Poul-Henning Kamp) Date: Tue, 17 Oct 2023 14:36:05 +0000 (UTC) Subject: [master] b6cfaa512 Flexelinting Message-ID: <20231017143605.4D9A210180C@lists.varnish-cache.org> commit b6cfaa512eaf4518ca62c61de0fbfc45ab42681c Author: Poul-Henning Kamp Date: Tue Oct 17 14:35:22 2023 +0000 Flexelinting diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 9457c99f2..65ea1d2df 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -49,6 +49,7 @@ struct h2_error_s { typedef const struct h2_error_s *h2_error; +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) extern const struct h2_error_s H2CE_##U[1]; #define H2EC2(U,v,r,d) extern const struct h2_error_s H2SE_##U[1]; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) From dridi at varni.sh Tue Oct 17 14:54:59 2023 From: dridi at varni.sh (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 14:54:59 +0000 Subject: [master] 151f4d50f Polish h2_rapid_reset docs In-Reply-To: <20231017140705.4BAB2100815@lists.varnish-cache.org> References: <20231017140705.4BAB2100815@lists.varnish-cache.org> Message-ID: On Tue, Oct 17, 2023 at 2:07?PM Nils Goroll wrote: > > > commit 151f4d50f98ed43ad04b60208e65697ddb71dbf7 > Author: Nils Goroll > Date: Tue Oct 17 13:30:01 2023 +0200 > > Polish h2_rapid_reset docs > > diff --git a/include/tbl/params.h b/include/tbl/params.h > index 530b60c39..bece5c83d 100644 > --- a/include/tbl/params.h > +++ b/include/tbl/params.h > @@ -1265,9 +1265,10 @@ PARAM_SIMPLE( > /* def */ "1.000", > /* units */ "seconds", > /* descr */ > - "The upper threshold for how rapid an http/2 RST has to come for " > - "it to be treated as suspect and subjected to the rate limits " > - "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", > + "The upper threshold for how rapid an http/2 RST has to come after " s/how rapid/how rapidly/ s/RST/RST_STREAM frame/ > + "a HEADERS frame for it to be treated as suspect and subjected to " > + "the rate limits specified by h2_rapid_reset_limit and " > + "h2_rapid_reset_period.", > /* flags */ EXPERIMENTAL, > ) > > _______________________________________________ > varnish-commit mailing list > varnish-commit at varnish-cache.org > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-commit From nils.goroll at uplex.de Tue Oct 17 16:31:06 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Tue, 17 Oct 2023 16:31:06 +0000 (UTC) Subject: [master] 46d4f8238 slinkified dridi-polish Message-ID: <20231017163106.125691051A1@lists.varnish-cache.org> commit 46d4f82386ab10ea4798637a70dc7122a9b81bba Author: Nils Goroll Date: Tue Oct 17 18:29:43 2023 +0200 slinkified dridi-polish diff --git a/include/tbl/params.h b/include/tbl/params.h index bece5c83d..39cedbb13 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1265,10 +1265,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come after " - "a HEADERS frame for it to be treated as suspect and subjected to " - "the rate limits specified by h2_rapid_reset_limit and " - "h2_rapid_reset_period.", + "The upper threshold for how soon an http/2 RST_STREAM frame has " + "to be parsed after a HEADERS frame for it to be treated as " + "suspect and subjected to the rate limits specified by " + "h2_rapid_reset_limit and h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:09 +0000 (UTC) Subject: [6.0] d74a55e1f Align code with with zlib 1.2.11. Message-ID: <20231017212809.8F16C111333@lists.varnish-cache.org> commit d74a55e1f27c10e5255369f76a24cdadc2249015 Author: Poul-Henning Kamp Date: Thu Feb 25 09:24:22 2021 +0000 Align code with with zlib 1.2.11. FreeBSD's code is undergoing some compatibility adaptations so we go directly to the source from here. PS: Please keep cochinelle out of libvgz. diff --git a/lib/libvgz/deflate.c b/lib/libvgz/deflate.c index 2a2544783..e4493c125 100644 --- a/lib/libvgz/deflate.c +++ b/lib/libvgz/deflate.c @@ -511,7 +511,7 @@ int ZEXPORT deflateResetKeep (strm) s->wrap == 2 ? crc32(0L, Z_NULL, 0) : #endif adler32(0L, Z_NULL, 0); - s->last_flush = -2; + s->last_flush = Z_NO_FLUSH; _tr_init(s); @@ -606,12 +606,12 @@ int ZEXPORT deflateParams(strm, level, strategy) func = configuration_table[s->level].func; if ((strategy != s->strategy || func != configuration_table[level].func) && - s->last_flush != -2) { + s->high_water) { /* Flush the last buffer: */ int err = deflate(strm, Z_BLOCK); if (err == Z_STREAM_ERROR) return err; - if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead) + if (strm->avail_out == 0) return Z_BUF_ERROR; } if (s->level != level) { diff --git a/lib/libvgz/vgz.h b/lib/libvgz/vgz.h index 1bb81009d..342a0fba5 100644 --- a/lib/libvgz/vgz.h +++ b/lib/libvgz/vgz.h @@ -717,12 +717,11 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, used to switch between compression and straight copy of the input data, or to switch to a different kind of input data requiring a different strategy. If the compression approach (which is a function of the level) or the - strategy is changed, and if there have been any deflate() calls since the - state was initialized or reset, then the input available so far is - compressed with the old level and strategy using deflate(strm, Z_BLOCK). - There are three approaches for the compression levels 0, 1..3, and 4..9 - respectively. The new level and strategy will take effect at the next call - of deflate(). + strategy is changed, and if any input has been consumed in a previous + deflate() call, then the input available so far is compressed with the old + level and strategy using deflate(strm, Z_BLOCK). There are three approaches + for the compression levels 0, 1..3, and 4..9 respectively. The new level + and strategy will take effect at the next call of deflate(). If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does not have enough output space to complete, then the parameter change will not diff --git a/lib/libvgz/zconf.h b/lib/libvgz/zconf.h index 1afeed62a..21f3eada7 100644 --- a/lib/libvgz/zconf.h +++ b/lib/libvgz/zconf.h @@ -3,7 +3,7 @@ * For conditions of distribution and use, see copyright notice in zlib.h */ -/* @(#) $FreeBSD: head/contrib/zlib/zconf.h 311285 2017-01-04 16:09:08Z delphij $ */ +/* @(#) $Id$ */ #ifndef ZCONF_H #define ZCONF_H @@ -431,7 +431,7 @@ typedef uLong FAR uLongf; typedef unsigned long z_crc_t; #endif -#if 0 /* was set to #if 0 by ./configure */ +#ifdef HAVE_UNISTD_H /* may be set to #if 1 by ./configure */ # define Z_HAVE_UNISTD_H #endif @@ -500,15 +500,8 @@ typedef uLong FAR uLongf; # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ #endif -/* - * This is hard-configured for FreeBSD. - */ -#define z_off_t off_t -#ifndef _FILE_OFFSET_BITS -#define _FILE_OFFSET_BITS 64 -#endif - #ifndef z_off_t +# error "z_off_t missing" # define z_off_t long #endif From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:10 +0000 (UTC) Subject: [6.0] 27fe77518 Upgrade zlib to 1.2.12 Message-ID: <20231017212810.77729111337@lists.varnish-cache.org> commit 27fe77518a5dd40f33b15a9815c3fc13a0b57738 Author: Poul-Henning Kamp Date: Fri Apr 8 10:34:41 2022 +0000 Upgrade zlib to 1.2.12 diff --git a/lib/libvgz/adler32.c b/lib/libvgz/adler32.c index 5f5e0decd..ef1ae7e79 100644 --- a/lib/libvgz/adler32.c +++ b/lib/libvgz/adler32.c @@ -185,7 +185,7 @@ uLong ZEXPORT adler32_combine64(adler1, adler2, len2) { return adler32_combine_(adler1, adler2, len2); } -#else +#else /* NOVGZ */ uLong ZEXPORT adler32(adler, buf, len) uLong adler; const Bytef *buf; @@ -196,4 +196,4 @@ uLong ZEXPORT adler32(adler, buf, len) (void)len; abort(); } -#endif +#endif /* NOVGZ */ diff --git a/lib/libvgz/crc32.c b/lib/libvgz/crc32.c index 9580440c0..2c92d0acb 100644 --- a/lib/libvgz/crc32.c +++ b/lib/libvgz/crc32.c @@ -1,12 +1,10 @@ /* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2006, 2010, 2011, 2012, 2016 Mark Adler + * Copyright (C) 1995-2022 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h * - * Thanks to Rodney Brown for his contribution of faster - * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing - * tables for updating the shift register in one step with three exclusive-ors - * instead of four steps with four exclusive-ors. This results in about a - * factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. + * This interleaved implementation of a CRC makes use of pipelined multiple + * arithmetic-logic units, commonly found in modern CPU cores. It is due to + * Kadatch and Jenkins (2010). See doc/crc-doc.1.0.pdf in this distribution. */ /* @(#) $Id$ */ @@ -14,11 +12,12 @@ /* Note on the use of DYNAMIC_CRC_TABLE: there is no mutex or semaphore protection on the static variables used to control the first-use generation - of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should + of the crc tables. Therefore, if you #define DYNAMIC_CRC_TABLE, you should first call get_crc_table() to initialize the tables before allowing more than one thread to use crc32(). - DYNAMIC_CRC_TABLE and MAKECRCH can be #defined to write out crc32.h. + MAKECRCH can be #defined to write out crc32.h. A main() routine is also + produced, so that this one source file can be compiled to an executable. */ #ifdef MAKECRCH @@ -28,415 +27,1095 @@ # endif /* !DYNAMIC_CRC_TABLE */ #endif /* MAKECRCH */ -#include "zutil.h" /* for STDC and FAR definitions */ +#include "zutil.h" /* for Z_U4, Z_U8, z_crc_t, and FAR definitions */ -/* Definitions for doing the crc four data bytes at a time. */ -#if !defined(NOBYFOUR) && defined(Z_U4) -# define BYFOUR + /* + A CRC of a message is computed on N braids of words in the message, where + each word consists of W bytes (4 or 8). If N is 3, for example, then three + running sparse CRCs are calculated respectively on each braid, at these + indices in the array of words: 0, 3, 6, ..., 1, 4, 7, ..., and 2, 5, 8, ... + This is done starting at a word boundary, and continues until as many blocks + of N * W bytes as are available have been processed. The results are combined + into a single CRC at the end. For this code, N must be in the range 1..6 and + W must be 4 or 8. The upper limit on N can be increased if desired by adding + more #if blocks, extending the patterns apparent in the code. In addition, + crc32.h would need to be regenerated, if the maximum N value is increased. + + N and W are chosen empirically by benchmarking the execution time on a given + processor. The choices for N and W below were based on testing on Intel Kaby + Lake i7, AMD Ryzen 7, ARM Cortex-A57, Sparc64-VII, PowerPC POWER9, and MIPS64 + Octeon II processors. The Intel, AMD, and ARM processors were all fastest + with N=5, W=8. The Sparc, PowerPC, and MIPS64 were all fastest at N=5, W=4. + They were all tested with either gcc or clang, all using the -O3 optimization + level. Your mileage may vary. + */ + +/* Define N */ +#ifdef Z_TESTN +# define N Z_TESTN +#else +# define N 5 +#endif +#if N < 1 || N > 6 +# error N must be in 1..6 #endif -#ifdef BYFOUR - local unsigned long crc32_little OF((unsigned long, - const unsigned char FAR *, z_size_t)); - local unsigned long crc32_big OF((unsigned long, - const unsigned char FAR *, z_size_t)); -# define TBLS 8 + +/* + z_crc_t must be at least 32 bits. z_word_t must be at least as long as + z_crc_t. It is assumed here that z_word_t is either 32 bits or 64 bits, and + that bytes are eight bits. + */ + +/* + Define W and the associated z_word_t type. If W is not defined, then a + braided calculation is not used, and the associated tables and code are not + compiled. + */ +#ifdef Z_TESTW +# if Z_TESTW-1 != -1 +# define W Z_TESTW +# endif #else -# define TBLS 1 -#endif /* BYFOUR */ +# ifdef MAKECRCH +# define W 8 /* required for MAKECRCH */ +# else +# if defined(__x86_64__) || defined(__aarch64__) +# define W 8 +# else +# define W 4 +# endif +# endif +#endif +#ifdef W +# if W == 8 && defined(Z_U8) + typedef Z_U8 z_word_t; +# elif defined(Z_U4) +# undef W +# define W 4 + typedef Z_U4 z_word_t; +# else +# undef W +# endif +#endif -/* Local functions for crc concatenation */ -local unsigned long gf2_matrix_times OF((unsigned long *mat, - unsigned long vec)); -local void gf2_matrix_square OF((unsigned long *square, unsigned long *mat)); -local uLong crc32_combine_ OF((uLong crc1, uLong crc2, z_off64_t len2)); +/* Local functions. */ +local z_crc_t multmodp OF((z_crc_t a, z_crc_t b)); +local z_crc_t x2nmodp OF((z_off64_t n, unsigned k)); + +/* If available, use the ARM processor CRC32 instruction. */ +#if defined(__aarch64__) && defined(__ARM_FEATURE_CRC32) && W == 8 +# define ARMCRC32 +#endif + +#if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE)) + +local z_word_t byte_swap OF((z_word_t word)); +local z_crc_t crc_word OF((z_word_t data)); +local z_word_t crc_word_big OF((z_word_t data)); + +/* + Swap the bytes in a z_word_t to convert between little and big endian. Any + self-respecting compiler will optimize this to a single machine byte-swap + instruction, if one is available. This assumes that word_t is either 32 bits + or 64 bits. + */ +local z_word_t byte_swap(word) + z_word_t word; +{ +# if W == 8 + return + (word & 0xff00000000000000) >> 56 | + (word & 0xff000000000000) >> 40 | + (word & 0xff0000000000) >> 24 | + (word & 0xff00000000) >> 8 | + (word & 0xff000000) << 8 | + (word & 0xff0000) << 24 | + (word & 0xff00) << 40 | + (word & 0xff) << 56; +# else /* W == 4 */ + return + (word & 0xff000000) >> 24 | + (word & 0xff0000) >> 8 | + (word & 0xff00) << 8 | + (word & 0xff) << 24; +# endif +} +#endif +/* CRC polynomial. */ +#define POLY 0xedb88320 /* p(x) reflected, with x^32 implied */ #ifdef DYNAMIC_CRC_TABLE -local volatile int crc_table_empty = 1; -local z_crc_t FAR crc_table[TBLS][256]; +local z_crc_t FAR crc_table[256]; +local z_crc_t FAR x2n_table[32]; local void make_crc_table OF((void)); +#ifdef W + local z_word_t FAR crc_big_table[256]; + local z_crc_t FAR crc_braid_table[W][256]; + local z_word_t FAR crc_braid_big_table[W][256]; + local void braid OF((z_crc_t [][256], z_word_t [][256], int, int)); +#endif #ifdef MAKECRCH - local void write_table OF((FILE *, const z_crc_t FAR *)); + local void write_table OF((FILE *, const z_crc_t FAR *, int)); + local void write_table32hi OF((FILE *, const z_word_t FAR *, int)); + local void write_table64 OF((FILE *, const z_word_t FAR *, int)); #endif /* MAKECRCH */ + +/* + Define a once() function depending on the availability of atomics. If this is + compiled with DYNAMIC_CRC_TABLE defined, and if CRCs will be computed in + multiple threads, and if atomics are not available, then get_crc_table() must + be called to initialize the tables and must return before any threads are + allowed to compute or combine CRCs. + */ + +/* Definition of once functionality. */ +typedef struct once_s once_t; +local void once OF((once_t *, void (*)(void))); + +/* Check for the availability of atomics. */ +#if defined(__STDC__) && __STDC_VERSION__ >= 201112L && \ + !defined(__STDC_NO_ATOMICS__) + +#include + +/* Structure for once(), which must be initialized with ONCE_INIT. */ +struct once_s { + atomic_flag begun; + atomic_int done; +}; +#define ONCE_INIT {ATOMIC_FLAG_INIT, 0} + +/* + Run the provided init() function exactly once, even if multiple threads + invoke once() at the same time. The state must be a once_t initialized with + ONCE_INIT. + */ +local void once(state, init) + once_t *state; + void (*init)(void); +{ + if (!atomic_load(&state->done)) { + if (atomic_flag_test_and_set(&state->begun)) + while (!atomic_load(&state->done)) + ; + else { + init(); + atomic_store(&state->done, 1); + } + } +} + +#else /* no atomics */ + +/* Structure for once(), which must be initialized with ONCE_INIT. */ +struct once_s { + volatile int begun; + volatile int done; +}; +#define ONCE_INIT {0, 0} + +/* Test and set. Alas, not atomic, but tries to minimize the period of + vulnerability. */ +local int test_and_set OF((int volatile *)); +local int test_and_set(flag) + int volatile *flag; +{ + int was; + + was = *flag; + *flag = 1; + return was; +} + +/* Run the provided init() function once. This is not thread-safe. */ +local void once(state, init) + once_t *state; + void (*init)(void); +{ + if (!state->done) { + if (test_and_set(&state->begun)) + while (!state->done) + ; + else { + init(); + state->done = 1; + } + } +} + +#endif + +/* State for once(). */ +local once_t made = ONCE_INIT; + /* Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. Polynomials over GF(2) are represented in binary, one bit per coefficient, - with the lowest powers in the most significant bit. Then adding polynomials + with the lowest powers in the most significant bit. Then adding polynomials is just exclusive-or, and multiplying a polynomial by x is a right shift by - one. If we call the above polynomial p, and represent a byte as the + one. If we call the above polynomial p, and represent a byte as the polynomial q, also with the lowest power in the most significant bit (so the - byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p, + byte 0xb1 is the polynomial x^7+x^3+x^2+1), then the CRC is (q*x^32) mod p, where a mod b means the remainder after dividing a by b. This calculation is done using the shift-register method of multiplying and - taking the remainder. The register is initialized to zero, and for each + taking the remainder. The register is initialized to zero, and for each incoming bit, x^32 is added mod p to the register if the bit is a one (where - x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by - x (which is shifting right by one and adding x^32 mod p if the bit shifted - out is a one). We start with the highest power (least significant bit) of - q and repeat for all eight bits of q. - - The first table is simply the CRC of all possible eight bit values. This is - all the information needed to generate CRCs on data a byte at a time for all - combinations of CRC register values and incoming bytes. The remaining tables - allow for word-at-a-time CRC calculation for both big-endian and little- - endian machines, where a word is four bytes. -*/ + x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by x + (which is shifting right by one and adding x^32 mod p if the bit shifted out + is a one). We start with the highest power (least significant bit) of q and + repeat for all eight bits of q. + + The table is simply the CRC of all possible eight bit values. This is all the + information needed to generate CRCs on data a byte at a time for all + combinations of CRC register values and incoming bytes. + */ + local void make_crc_table() { - z_crc_t c; - int n, k; - z_crc_t poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static volatile int first = 1; /* flag to limit concurrent making */ - static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* See if another task is already doing this (not thread-safe, but better - than nothing -- significantly reduces duration of vulnerability in - case the advice about DYNAMIC_CRC_TABLE is ignored) */ - if (first) { - first = 0; - - /* make exclusive-or pattern from polynomial (0xedb88320UL) */ - poly = 0; - for (n = 0; n < (int)(sizeof(p)/sizeof(unsigned char)); n++) - poly |= (z_crc_t)1 << (31 - p[n]); - - /* generate a crc for every 8-bit value */ - for (n = 0; n < 256; n++) { - c = (z_crc_t)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[0][n] = c; - } + unsigned i, j, n; + z_crc_t p; -#ifdef BYFOUR - /* generate crc for each value followed by one, two, and three zeros, - and then the byte reversal of those as well as the first table */ - for (n = 0; n < 256; n++) { - c = crc_table[0][n]; - crc_table[4][n] = ZSWAP32(c); - for (k = 1; k < 4; k++) { - c = crc_table[0][c & 0xff] ^ (c >> 8); - crc_table[k][n] = c; - crc_table[k + 4][n] = ZSWAP32(c); - } - } -#endif /* BYFOUR */ - - crc_table_empty = 0; - } - else { /* not first */ - /* wait for the other guy to finish (not efficient, but rare) */ - while (crc_table_empty) - ; + /* initialize the CRC of bytes tables */ + for (i = 0; i < 256; i++) { + p = i; + for (j = 0; j < 8; j++) + p = p & 1 ? (p >> 1) ^ POLY : p >> 1; + crc_table[i] = p; +#ifdef W + crc_big_table[i] = byte_swap(p); +#endif } + /* initialize the x^2^n mod p(x) table */ + p = (z_crc_t)1 << 30; /* x^1 */ + x2n_table[0] = p; + for (n = 1; n < 32; n++) + x2n_table[n] = p = multmodp(p, p); + +#ifdef W + /* initialize the braiding tables -- needs x2n_table[] */ + braid(crc_braid_table, crc_braid_big_table, N, W); +#endif + #ifdef MAKECRCH - /* write out CRC tables to crc32.h */ { + /* + The crc32.h header file contains tables for both 32-bit and 64-bit + z_word_t's, and so requires a 64-bit type be available. In that case, + z_word_t must be defined to be 64-bits. This code then also generates + and writes out the tables for the case that z_word_t is 32 bits. + */ +#if !defined(W) || W != 8 +# error Need a 64-bit integer type in order to generate crc32.h. +#endif FILE *out; + int k, n; + z_crc_t ltl[8][256]; + z_word_t big[8][256]; out = fopen("crc32.h", "w"); if (out == NULL) return; - fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); - fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); - fprintf(out, "local const z_crc_t FAR "); - fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); - write_table(out, crc_table[0]); -# ifdef BYFOUR - fprintf(out, "#ifdef BYFOUR\n"); - for (k = 1; k < 8; k++) { - fprintf(out, " },\n {\n"); - write_table(out, crc_table[k]); + + /* write out little-endian CRC table to crc32.h */ + fprintf(out, + "/* crc32.h -- tables for rapid CRC calculation\n" + " * Generated automatically by crc32.c\n */\n" + "\n" + "local const z_crc_t FAR crc_table[] = {\n" + " "); + write_table(out, crc_table, 256); + fprintf(out, + "};\n"); + + /* write out big-endian CRC table for 64-bit z_word_t to crc32.h */ + fprintf(out, + "\n" + "#ifdef W\n" + "\n" + "#if W == 8\n" + "\n" + "local const z_word_t FAR crc_big_table[] = {\n" + " "); + write_table64(out, crc_big_table, 256); + fprintf(out, + "};\n"); + + /* write out big-endian CRC table for 32-bit z_word_t to crc32.h */ + fprintf(out, + "\n" + "#else /* W == 4 */\n" + "\n" + "local const z_word_t FAR crc_big_table[] = {\n" + " "); + write_table32hi(out, crc_big_table, 256); + fprintf(out, + "};\n" + "\n" + "#endif\n"); + + /* write out braid tables for each value of N */ + for (n = 1; n <= 6; n++) { + fprintf(out, + "\n" + "#if N == %d\n", n); + + /* compute braid tables for this N and 64-bit word_t */ + braid(ltl, big, n, 8); + + /* write out braid tables for 64-bit z_word_t to crc32.h */ + fprintf(out, + "\n" + "#if W == 8\n" + "\n" + "local const z_crc_t FAR crc_braid_table[][256] = {\n"); + for (k = 0; k < 8; k++) { + fprintf(out, " {"); + write_table(out, ltl[k], 256); + fprintf(out, "}%s", k < 7 ? ",\n" : ""); + } + fprintf(out, + "};\n" + "\n" + "local const z_word_t FAR crc_braid_big_table[][256] = {\n"); + for (k = 0; k < 8; k++) { + fprintf(out, " {"); + write_table64(out, big[k], 256); + fprintf(out, "}%s", k < 7 ? ",\n" : ""); + } + fprintf(out, + "};\n"); + + /* compute braid tables for this N and 32-bit word_t */ + braid(ltl, big, n, 4); + + /* write out braid tables for 32-bit z_word_t to crc32.h */ + fprintf(out, + "\n" + "#else /* W == 4 */\n" + "\n" + "local const z_crc_t FAR crc_braid_table[][256] = {\n"); + for (k = 0; k < 4; k++) { + fprintf(out, " {"); + write_table(out, ltl[k], 256); + fprintf(out, "}%s", k < 3 ? ",\n" : ""); + } + fprintf(out, + "};\n" + "\n" + "local const z_word_t FAR crc_braid_big_table[][256] = {\n"); + for (k = 0; k < 4; k++) { + fprintf(out, " {"); + write_table32hi(out, big[k], 256); + fprintf(out, "}%s", k < 3 ? ",\n" : ""); + } + fprintf(out, + "};\n" + "\n" + "#endif\n" + "\n" + "#endif\n"); } - fprintf(out, "#endif\n"); -# endif /* BYFOUR */ - fprintf(out, " }\n};\n"); + fprintf(out, + "\n" + "#endif\n"); + + /* write out zeros operator table to crc32.h */ + fprintf(out, + "\n" + "local const z_crc_t FAR x2n_table[] = {\n" + " "); + write_table(out, x2n_table, 32); + fprintf(out, + "};\n"); fclose(out); } #endif /* MAKECRCH */ } #ifdef MAKECRCH -local void write_table(out, table) + +/* + Write the 32-bit values in table[0..k-1] to out, five per line in + hexadecimal separated by commas. + */ +local void write_table(out, table, k) FILE *out; const z_crc_t FAR *table; + int k; { int n; - for (n = 0; n < 256; n++) - fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", + for (n = 0; n < k; n++) + fprintf(out, "%s0x%08lx%s", n == 0 || n % 5 ? "" : " ", (unsigned long)(table[n]), - n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); + n == k - 1 ? "" : (n % 5 == 4 ? ",\n" : ", ")); } + +/* + Write the high 32-bits of each value in table[0..k-1] to out, five per line + in hexadecimal separated by commas. + */ +local void write_table32hi(out, table, k) +FILE *out; +const z_word_t FAR *table; +int k; +{ + int n; + + for (n = 0; n < k; n++) + fprintf(out, "%s0x%08lx%s", n == 0 || n % 5 ? "" : " ", + (unsigned long)(table[n] >> 32), + n == k - 1 ? "" : (n % 5 == 4 ? ",\n" : ", ")); +} + +/* + Write the 64-bit values in table[0..k-1] to out, three per line in + hexadecimal separated by commas. This assumes that if there is a 64-bit + type, then there is also a long long integer type, and it is at least 64 + bits. If not, then the type cast and format string can be adjusted + accordingly. + */ +local void write_table64(out, table, k) + FILE *out; + const z_word_t FAR *table; + int k; +{ + int n; + + for (n = 0; n < k; n++) + fprintf(out, "%s0x%016llx%s", n == 0 || n % 3 ? "" : " ", + (unsigned long long)(table[n]), + n == k - 1 ? "" : (n % 3 == 2 ? ",\n" : ", ")); +} + +/* Actually do the deed. */ +int main() +{ + make_crc_table(); + return 0; +} + #endif /* MAKECRCH */ +#ifdef W +/* + Generate the little and big-endian braid tables for the given n and z_word_t + size w. Each array must have room for w blocks of 256 elements. + */ +local void braid(ltl, big, n, w) + z_crc_t ltl[][256]; + z_word_t big[][256]; + int n; + int w; +{ + int k; + z_crc_t i, p, q; + for (k = 0; k < w; k++) { + p = x2nmodp((n * w + 3 - k) << 3, 0); + ltl[k][0] = 0; + big[w - 1 - k][0] = 0; + for (i = 1; i < 256; i++) { + ltl[k][i] = q = multmodp(i << 24, p); + big[w - 1 - k][i] = byte_swap(q); + } + } +} +#endif + #else /* !DYNAMIC_CRC_TABLE */ /* ======================================================================== - * Tables of CRC-32s of all single-byte values, made by make_crc_table(). + * Tables for byte-wise and braided CRC-32 calculations, and a table of powers + * of x for combining CRC-32s, all made by make_crc_table(). */ #include "crc32.h" #endif /* DYNAMIC_CRC_TABLE */ +/* ======================================================================== + * Routines used for CRC calculation. Some are also required for the table + * generation above. + */ + +/* + Return a(x) multiplied by b(x) modulo p(x), where p(x) is the CRC polynomial, + reflected. For speed, this requires that a not be zero. + */ +local z_crc_t multmodp(a, b) + z_crc_t a; + z_crc_t b; +{ + z_crc_t m, p; + + m = (z_crc_t)1 << 31; + p = 0; + for (;;) { + if (a & m) { + p ^= b; + if ((a & (m - 1)) == 0) + break; + } + m >>= 1; + b = b & 1 ? (b >> 1) ^ POLY : b >> 1; + } + return p; +} + +/* + Return x^(n * 2^k) modulo p(x). Requires that x2n_table[] has been + initialized. + */ +local z_crc_t x2nmodp(n, k) + z_off64_t n; + unsigned k; +{ + z_crc_t p; + + p = (z_crc_t)1 << 31; /* x^0 == 1 */ + while (n) { + if (n & 1) + p = multmodp(x2n_table[k & 31], p); + n >>= 1; + k++; + } + return p; +} + /* ========================================================================= - * This function can be used by asm versions of crc32() + * This function can be used by asm versions of crc32(), and to force the + * generation of the CRC tables in a threaded application. */ const z_crc_t FAR * ZEXPORT get_crc_table() { #ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); + once(&made, make_crc_table); #endif /* DYNAMIC_CRC_TABLE */ return (const z_crc_t FAR *)crc_table; } -/* ========================================================================= */ -#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) -#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 +/* ========================================================================= + * Use ARM machine instructions if available. This will compute the CRC about + * ten times faster than the braided calculation. This code does not check for + * the presence of the CRC instruction at run time. __ARM_FEATURE_CRC32 will + * only be defined if the compilation specifies an ARM processor architecture + * that has the instructions. For example, compiling with -march=armv8.1-a or + * -march=armv8-a+crc, or -march=native if the compile machine has the crc32 + * instructions. + */ +#ifdef ARMCRC32 + +/* + Constants empirically determined to maximize speed. These values are from + measurements on a Cortex-A57. Your mileage may vary. + */ +#define Z_BATCH 3990 /* number of words in a batch */ +#define Z_BATCH_ZEROS 0xa10d3d0c /* computed from Z_BATCH = 3990 */ +#define Z_BATCH_MIN 800 /* fewest words in a final batch */ -/* ========================================================================= */ unsigned long ZEXPORT crc32_z(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; z_size_t len; { - if (buf == Z_NULL) return 0UL; + z_crc_t val; + z_word_t crc1, crc2; + const z_word_t *word; + z_word_t val0, val1, val2; + z_size_t last, last2, i; + z_size_t num; + + /* Return initial CRC, if requested. */ + if (buf == Z_NULL) return 0; #ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); + once(&made, make_crc_table); #endif /* DYNAMIC_CRC_TABLE */ -#ifdef BYFOUR - if (sizeof(void *) == sizeof(ptrdiff_t)) { - z_crc_t endian; + /* Pre-condition the CRC */ + crc ^= 0xffffffff; - endian = 1; - if (*((unsigned char *)(&endian))) - return crc32_little(crc, buf, len); - else - return crc32_big(crc, buf, len); + /* Compute the CRC up to a word boundary. */ + while (len && ((z_size_t)buf & 7) != 0) { + len--; + val = *buf++; + __asm__ volatile("crc32b %w0, %w0, %w1" : "+r"(crc) : "r"(val)); } -#endif /* BYFOUR */ - crc = crc ^ 0xffffffffUL; - while (len >= 8) { - DO8; - len -= 8; + + /* Prepare to compute the CRC on full 64-bit words word[0..num-1]. */ + word = (z_word_t const *)(intptr_t)buf; + num = len >> 3; + len &= 7; + + /* Do three interleaved CRCs to realize the throughput of one crc32x + instruction per cycle. Each CRC is calcuated on Z_BATCH words. The three + CRCs are combined into a single CRC after each set of batches. */ + while (num >= 3 * Z_BATCH) { + crc1 = 0; + crc2 = 0; + for (i = 0; i < Z_BATCH; i++) { + val0 = word[i]; + val1 = word[i + Z_BATCH]; + val2 = word[i + 2 * Z_BATCH]; + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0)); + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc1) : "r"(val1)); + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc2) : "r"(val2)); + } + word += 3 * Z_BATCH; + num -= 3 * Z_BATCH; + crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc1; + crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc2; } - if (len) do { - DO1; - } while (--len); - return crc ^ 0xffffffffUL; -} -/* ========================================================================= */ -unsigned long ZEXPORT crc32(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - uInt len; -{ - return crc32_z(crc, buf, len); + /* Do one last smaller batch with the remaining words, if there are enough + to pay for the combination of CRCs. */ + last = num / 3; + if (last >= Z_BATCH_MIN) { + last2 = last << 1; + crc1 = 0; + crc2 = 0; + for (i = 0; i < last; i++) { + val0 = word[i]; + val1 = word[i + last]; + val2 = word[i + last2]; + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0)); + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc1) : "r"(val1)); + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc2) : "r"(val2)); + } + word += 3 * last; + num -= 3 * last; + val = x2nmodp(last, 6); + crc = multmodp(val, crc) ^ crc1; + crc = multmodp(val, crc) ^ crc2; + } + + /* Compute the CRC on any remaining words. */ + for (i = 0; i < num; i++) { + val0 = word[i]; + __asm__ volatile("crc32x %w0, %w0, %x1" : "+r"(crc) : "r"(val0)); + } + word += num; + + /* Complete the CRC on any remaining bytes. */ + buf = (const unsigned char FAR *)word; + while (len) { + len--; + val = *buf++; + __asm__ volatile("crc32b %w0, %w0, %w1" : "+r"(crc) : "r"(val)); + } + + /* Return the CRC, post-conditioned. */ + return crc ^ 0xffffffff; } -#ifdef BYFOUR +#else + +#ifdef W /* - This BYFOUR code accesses the passed unsigned char * buffer with a 32-bit - integer pointer type. This violates the strict aliasing rule, where a - compiler can assume, for optimization purposes, that two pointers to - fundamentally different types won't ever point to the same memory. This can - manifest as a problem only if one of the pointers is written to. This code - only reads from those pointers. So long as this code remains isolated in - this compilation unit, there won't be a problem. For this reason, this code - should not be copied and pasted into a compilation unit in which other code - writes to the buffer that is passed to these routines. + Return the CRC of the W bytes in the word_t data, taking the + least-significant byte of the word as the first byte of data, without any pre + or post conditioning. This is used to combine the CRCs of each braid. */ +local z_crc_t crc_word(data) + z_word_t data; +{ + int k; + for (k = 0; k < W; k++) + data = (data >> 8) ^ crc_table[data & 0xff]; + return (z_crc_t)data; +} -/* ========================================================================= */ -#define DOLIT4 c ^= *buf4++; \ - c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ - crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] -#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 +local z_word_t crc_word_big(data) + z_word_t data; +{ + int k; + for (k = 0; k < W; k++) + data = (data << 8) ^ + crc_big_table[(data >> ((W - 1) << 3)) & 0xff]; + return data; +} + +#endif /* ========================================================================= */ -local unsigned long crc32_little(crc, buf, len) +unsigned long ZEXPORT crc32_z(crc, buf, len) unsigned long crc; const unsigned char FAR *buf; z_size_t len; { - register z_crc_t c; - register const z_crc_t FAR *buf4; + /* Return initial CRC, if requested. */ + if (buf == Z_NULL) return 0; - c = (z_crc_t)crc; - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - len--; - } +#ifdef DYNAMIC_CRC_TABLE + once(&made, make_crc_table); +#endif /* DYNAMIC_CRC_TABLE */ - buf4 = (const z_crc_t FAR *)(const void FAR *)buf; - while (len >= 32) { - DOLIT32; - len -= 32; - } - while (len >= 4) { - DOLIT4; - len -= 4; - } - buf = (const unsigned char FAR *)buf4; + /* Pre-condition the CRC */ + crc ^= 0xffffffff; - if (len) do { - c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); - } while (--len); - c = ~c; - return (unsigned long)c; -} +#ifdef W -/* ========================================================================= */ -#define DOBIG4 c ^= *buf4++; \ - c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ - crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] -#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 + /* If provided enough bytes, do a braided CRC calculation. */ + if (len >= N * W + W - 1) { + z_size_t blks; + z_word_t const *words; + unsigned endian; + int k; -/* ========================================================================= */ -local unsigned long crc32_big(crc, buf, len) - unsigned long crc; - const unsigned char FAR *buf; - z_size_t len; -{ - register z_crc_t c; - register const z_crc_t FAR *buf4; + /* Compute the CRC up to a z_word_t boundary. */ + while (len && ((z_size_t)buf & (W - 1)) != 0) { + len--; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + } - c = ZSWAP32((z_crc_t)crc); - c = ~c; - while (len && ((ptrdiff_t)buf & 3)) { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - len--; + /* Compute the CRC on as many N z_word_t blocks as are available. */ + blks = len / (N * W); + len -= blks * N * W; + words = (z_word_t const *)(intptr_t)buf; + + /* Do endian check at execution time instead of compile time, since ARM + processors can change the endianess at execution time. If the + compiler knows what the endianess will be, it can optimize out the + check and the unused branch. */ + endian = 1; + if (*(unsigned char *)&endian) { + /* Little endian. */ + + z_crc_t crc0; + z_word_t word0; +#if N > 1 + z_crc_t crc1; + z_word_t word1; +#if N > 2 + z_crc_t crc2; + z_word_t word2; +#if N > 3 + z_crc_t crc3; + z_word_t word3; +#if N > 4 + z_crc_t crc4; + z_word_t word4; +#if N > 5 + z_crc_t crc5; + z_word_t word5; +#endif +#endif +#endif +#endif +#endif + + /* Initialize the CRC for each braid. */ + crc0 = crc; +#if N > 1 + crc1 = 0; +#if N > 2 + crc2 = 0; +#if N > 3 + crc3 = 0; +#if N > 4 + crc4 = 0; +#if N > 5 + crc5 = 0; +#endif +#endif +#endif +#endif +#endif + + /* + Process the first blks-1 blocks, computing the CRCs on each braid + independently. + */ + while (--blks) { + /* Load the word for each braid into registers. */ + word0 = crc0 ^ words[0]; +#if N > 1 + word1 = crc1 ^ words[1]; +#if N > 2 + word2 = crc2 ^ words[2]; +#if N > 3 + word3 = crc3 ^ words[3]; +#if N > 4 + word4 = crc4 ^ words[4]; +#if N > 5 + word5 = crc5 ^ words[5]; +#endif +#endif +#endif +#endif +#endif + words += N; + + /* Compute and update the CRC for each word. The loop should + get unrolled. */ + crc0 = crc_braid_table[0][word0 & 0xff]; +#if N > 1 + crc1 = crc_braid_table[0][word1 & 0xff]; +#if N > 2 + crc2 = crc_braid_table[0][word2 & 0xff]; +#if N > 3 + crc3 = crc_braid_table[0][word3 & 0xff]; +#if N > 4 + crc4 = crc_braid_table[0][word4 & 0xff]; +#if N > 5 + crc5 = crc_braid_table[0][word5 & 0xff]; +#endif +#endif +#endif +#endif +#endif + for (k = 1; k < W; k++) { + crc0 ^= crc_braid_table[k][(word0 >> (k << 3)) & 0xff]; +#if N > 1 + crc1 ^= crc_braid_table[k][(word1 >> (k << 3)) & 0xff]; +#if N > 2 + crc2 ^= crc_braid_table[k][(word2 >> (k << 3)) & 0xff]; +#if N > 3 + crc3 ^= crc_braid_table[k][(word3 >> (k << 3)) & 0xff]; +#if N > 4 + crc4 ^= crc_braid_table[k][(word4 >> (k << 3)) & 0xff]; +#if N > 5 + crc5 ^= crc_braid_table[k][(word5 >> (k << 3)) & 0xff]; +#endif +#endif +#endif +#endif +#endif + } + } + + /* + Process the last block, combining the CRCs of the N braids at the + same time. + */ + crc = crc_word(crc0 ^ words[0]); +#if N > 1 + crc = crc_word(crc1 ^ words[1] ^ crc); +#if N > 2 + crc = crc_word(crc2 ^ words[2] ^ crc); +#if N > 3 + crc = crc_word(crc3 ^ words[3] ^ crc); +#if N > 4 + crc = crc_word(crc4 ^ words[4] ^ crc); +#if N > 5 + crc = crc_word(crc5 ^ words[5] ^ crc); +#endif +#endif +#endif +#endif +#endif + words += N; + } + else { + /* Big endian. */ + + z_word_t crc0, word0, comb; +#if N > 1 + z_word_t crc1, word1; +#if N > 2 + z_word_t crc2, word2; +#if N > 3 + z_word_t crc3, word3; +#if N > 4 + z_word_t crc4, word4; +#if N > 5 + z_word_t crc5, word5; +#endif +#endif +#endif +#endif +#endif + + /* Initialize the CRC for each braid. */ + crc0 = byte_swap(crc); +#if N > 1 + crc1 = 0; +#if N > 2 + crc2 = 0; +#if N > 3 + crc3 = 0; +#if N > 4 + crc4 = 0; +#if N > 5 + crc5 = 0; +#endif +#endif +#endif +#endif +#endif + + /* + Process the first blks-1 blocks, computing the CRCs on each braid + independently. + */ + while (--blks) { + /* Load the word for each braid into registers. */ + word0 = crc0 ^ words[0]; +#if N > 1 + word1 = crc1 ^ words[1]; +#if N > 2 + word2 = crc2 ^ words[2]; +#if N > 3 + word3 = crc3 ^ words[3]; +#if N > 4 + word4 = crc4 ^ words[4]; +#if N > 5 + word5 = crc5 ^ words[5]; +#endif +#endif +#endif +#endif +#endif + words += N; + + /* Compute and update the CRC for each word. The loop should + get unrolled. */ + crc0 = crc_braid_big_table[0][word0 & 0xff]; +#if N > 1 + crc1 = crc_braid_big_table[0][word1 & 0xff]; +#if N > 2 + crc2 = crc_braid_big_table[0][word2 & 0xff]; +#if N > 3 + crc3 = crc_braid_big_table[0][word3 & 0xff]; +#if N > 4 + crc4 = crc_braid_big_table[0][word4 & 0xff]; +#if N > 5 + crc5 = crc_braid_big_table[0][word5 & 0xff]; +#endif +#endif +#endif +#endif +#endif + for (k = 1; k < W; k++) { + crc0 ^= crc_braid_big_table[k][(word0 >> (k << 3)) & 0xff]; +#if N > 1 + crc1 ^= crc_braid_big_table[k][(word1 >> (k << 3)) & 0xff]; +#if N > 2 + crc2 ^= crc_braid_big_table[k][(word2 >> (k << 3)) & 0xff]; +#if N > 3 + crc3 ^= crc_braid_big_table[k][(word3 >> (k << 3)) & 0xff]; +#if N > 4 + crc4 ^= crc_braid_big_table[k][(word4 >> (k << 3)) & 0xff]; +#if N > 5 + crc5 ^= crc_braid_big_table[k][(word5 >> (k << 3)) & 0xff]; +#endif +#endif +#endif +#endif +#endif + } + } + + /* + Process the last block, combining the CRCs of the N braids at the + same time. + */ + comb = crc_word_big(crc0 ^ words[0]); +#if N > 1 + comb = crc_word_big(crc1 ^ words[1] ^ comb); +#if N > 2 + comb = crc_word_big(crc2 ^ words[2] ^ comb); +#if N > 3 + comb = crc_word_big(crc3 ^ words[3] ^ comb); +#if N > 4 + comb = crc_word_big(crc4 ^ words[4] ^ comb); +#if N > 5 + comb = crc_word_big(crc5 ^ words[5] ^ comb); +#endif +#endif +#endif +#endif +#endif + words += N; + crc = byte_swap(comb); + } + + /* + Update the pointer to the remaining bytes to process. + */ + buf = (unsigned char const *)words; } - buf4 = (const z_crc_t FAR *)(const void FAR *)buf; - while (len >= 32) { - DOBIG32; - len -= 32; +#endif /* W */ + + /* Complete the computation of the CRC on any remaining bytes. */ + while (len >= 8) { + len -= 8; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; } - while (len >= 4) { - DOBIG4; - len -= 4; + while (len) { + len--; + crc = (crc >> 8) ^ crc_table[(crc ^ *buf++) & 0xff]; } - buf = (const unsigned char FAR *)buf4; - if (len) do { - c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); - } while (--len); - c = ~c; - return (unsigned long)(ZSWAP32(c)); + /* Return the CRC, post-conditioned. */ + return crc ^ 0xffffffff; } -#endif /* BYFOUR */ - -#define GF2_DIM 32 /* dimension of GF(2) vectors (length of CRC) */ +#endif /* ========================================================================= */ -local unsigned long gf2_matrix_times(mat, vec) - unsigned long *mat; - unsigned long vec; +unsigned long ZEXPORT crc32(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + uInt len; { - unsigned long sum; - - sum = 0; - while (vec) { - if (vec & 1) - sum ^= *mat; - vec >>= 1; - mat++; - } - return sum; + return crc32_z(crc, buf, len); } /* ========================================================================= */ -local void gf2_matrix_square(square, mat) - unsigned long *square; - unsigned long *mat; +uLong ZEXPORT crc32_combine64(crc1, crc2, len2) + uLong crc1; + uLong crc2; + z_off64_t len2; { - int n; - - for (n = 0; n < GF2_DIM; n++) - square[n] = gf2_matrix_times(mat, mat[n]); +#ifdef DYNAMIC_CRC_TABLE + once(&made, make_crc_table); +#endif /* DYNAMIC_CRC_TABLE */ + return multmodp(x2nmodp(len2, 3), crc1) ^ crc2; } /* ========================================================================= */ -local uLong crc32_combine_(crc1, crc2, len2) +uLong ZEXPORT crc32_combine(crc1, crc2, len2) uLong crc1; uLong crc2; - z_off64_t len2; + z_off_t len2; { - int n; - unsigned long row; - unsigned long even[GF2_DIM]; /* even-power-of-two zeros operator */ - unsigned long odd[GF2_DIM]; /* odd-power-of-two zeros operator */ - - /* degenerate case (also disallow negative lengths) */ - if (len2 <= 0) - return crc1; - - /* put operator for one zero bit in odd */ - odd[0] = 0xedb88320UL; /* CRC-32 polynomial */ - row = 1; - for (n = 1; n < GF2_DIM; n++) { - odd[n] = row; - row <<= 1; - } + return crc32_combine64(crc1, crc2, len2); +} - /* put operator for two zero bits in even */ - gf2_matrix_square(even, odd); - - /* put operator for four zero bits in odd */ - gf2_matrix_square(odd, even); - - /* apply len2 zeros to crc1 (first square will put the operator for one - zero byte, eight zero bits, in even) */ - do { - /* apply zeros operator for this bit of len2 */ - gf2_matrix_square(even, odd); - if (len2 & 1) - crc1 = gf2_matrix_times(even, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - if (len2 == 0) - break; - - /* another iteration of the loop with odd and even swapped */ - gf2_matrix_square(odd, even); - if (len2 & 1) - crc1 = gf2_matrix_times(odd, crc1); - len2 >>= 1; - - /* if no more bits set, then done */ - } while (len2 != 0); - - /* return combined crc */ - crc1 ^= crc2; - return crc1; +/* ========================================================================= */ +uLong ZEXPORT crc32_combine_gen64(len2) + z_off64_t len2; +{ +#ifdef DYNAMIC_CRC_TABLE + once(&made, make_crc_table); +#endif /* DYNAMIC_CRC_TABLE */ + return x2nmodp(len2, 3); } /* ========================================================================= */ -uLong ZEXPORT crc32_combine(crc1, crc2, len2) - uLong crc1; - uLong crc2; +uLong ZEXPORT crc32_combine_gen(len2) z_off_t len2; { - return crc32_combine_(crc1, crc2, len2); + return crc32_combine_gen64(len2); } -uLong ZEXPORT crc32_combine64(crc1, crc2, len2) +/* ========================================================================= */ +uLong crc32_combine_op(crc1, crc2, op) uLong crc1; uLong crc2; - z_off64_t len2; + uLong op; { - return crc32_combine_(crc1, crc2, len2); + return multmodp(op, crc1) ^ crc2; } diff --git a/lib/libvgz/crc32.h b/lib/libvgz/crc32.h index 9e0c77810..137df68d6 100644 --- a/lib/libvgz/crc32.h +++ b/lib/libvgz/crc32.h @@ -2,440 +2,9445 @@ * Generated automatically by crc32.c */ -local const z_crc_t FAR crc_table[TBLS][256] = -{ - { - 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, - 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, - 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, - 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, - 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, - 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, - 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, - 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, - 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, - 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, - 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, - 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, - 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, - 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, - 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, - 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, - 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, - 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, - 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, - 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, - 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, - 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, - 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, - 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, - 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, - 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, - 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, - 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, - 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, - 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, - 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, - 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, - 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, - 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, - 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, - 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, - 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, - 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, - 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, - 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, - 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, - 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, - 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, - 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, - 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, - 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, - 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, - 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, - 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, - 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, - 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, - 0x2d02ef8dUL -#ifdef BYFOUR - }, - { - 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, - 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, - 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, - 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, - 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, - 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, - 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, - 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, - 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, - 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, - 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, - 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, - 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, - 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, - 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, - 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, - 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, - 0xc7cca911UL, 0xece1fad2UL, 0xf5facb93UL, 0x7262d75cUL, 0x6b79e61dUL, - 0x4054b5deUL, 0x594f849fUL, 0x160e1258UL, 0x0f152319UL, 0x243870daUL, - 0x3d23419bUL, 0x65fd6ba7UL, 0x7ce65ae6UL, 0x57cb0925UL, 0x4ed03864UL, - 0x0191aea3UL, 0x188a9fe2UL, 0x33a7cc21UL, 0x2abcfd60UL, 0xad24e1afUL, - 0xb43fd0eeUL, 0x9f12832dUL, 0x8609b26cUL, 0xc94824abUL, 0xd05315eaUL, - 0xfb7e4629UL, 0xe2657768UL, 0x2f3f79f6UL, 0x362448b7UL, 0x1d091b74UL, - 0x04122a35UL, 0x4b53bcf2UL, 0x52488db3UL, 0x7965de70UL, 0x607eef31UL, - 0xe7e6f3feUL, 0xfefdc2bfUL, 0xd5d0917cUL, 0xcccba03dUL, 0x838a36faUL, - 0x9a9107bbUL, 0xb1bc5478UL, 0xa8a76539UL, 0x3b83984bUL, 0x2298a90aUL, - 0x09b5fac9UL, 0x10aecb88UL, 0x5fef5d4fUL, 0x46f46c0eUL, 0x6dd93fcdUL, - 0x74c20e8cUL, 0xf35a1243UL, 0xea412302UL, 0xc16c70c1UL, 0xd8774180UL, - 0x9736d747UL, 0x8e2de606UL, 0xa500b5c5UL, 0xbc1b8484UL, 0x71418a1aUL, - 0x685abb5bUL, 0x4377e898UL, 0x5a6cd9d9UL, 0x152d4f1eUL, 0x0c367e5fUL, - 0x271b2d9cUL, 0x3e001cddUL, 0xb9980012UL, 0xa0833153UL, 0x8bae6290UL, - 0x92b553d1UL, 0xddf4c516UL, 0xc4eff457UL, 0xefc2a794UL, 0xf6d996d5UL, - 0xae07bce9UL, 0xb71c8da8UL, 0x9c31de6bUL, 0x852aef2aUL, 0xca6b79edUL, - 0xd37048acUL, 0xf85d1b6fUL, 0xe1462a2eUL, 0x66de36e1UL, 0x7fc507a0UL, - 0x54e85463UL, 0x4df36522UL, 0x02b2f3e5UL, 0x1ba9c2a4UL, 0x30849167UL, - 0x299fa026UL, 0xe4c5aeb8UL, 0xfdde9ff9UL, 0xd6f3cc3aUL, 0xcfe8fd7bUL, - 0x80a96bbcUL, 0x99b25afdUL, 0xb29f093eUL, 0xab84387fUL, 0x2c1c24b0UL, - 0x350715f1UL, 0x1e2a4632UL, 0x07317773UL, 0x4870e1b4UL, 0x516bd0f5UL, - 0x7a468336UL, 0x635db277UL, 0xcbfad74eUL, 0xd2e1e60fUL, 0xf9ccb5ccUL, - 0xe0d7848dUL, 0xaf96124aUL, 0xb68d230bUL, 0x9da070c8UL, 0x84bb4189UL, - 0x03235d46UL, 0x1a386c07UL, 0x31153fc4UL, 0x280e0e85UL, 0x674f9842UL, - 0x7e54a903UL, 0x5579fac0UL, 0x4c62cb81UL, 0x8138c51fUL, 0x9823f45eUL, - 0xb30ea79dUL, 0xaa1596dcUL, 0xe554001bUL, 0xfc4f315aUL, 0xd7626299UL, - 0xce7953d8UL, 0x49e14f17UL, 0x50fa7e56UL, 0x7bd72d95UL, 0x62cc1cd4UL, - 0x2d8d8a13UL, 0x3496bb52UL, 0x1fbbe891UL, 0x06a0d9d0UL, 0x5e7ef3ecUL, - 0x4765c2adUL, 0x6c48916eUL, 0x7553a02fUL, 0x3a1236e8UL, 0x230907a9UL, - 0x0824546aUL, 0x113f652bUL, 0x96a779e4UL, 0x8fbc48a5UL, 0xa4911b66UL, - 0xbd8a2a27UL, 0xf2cbbce0UL, 0xebd08da1UL, 0xc0fdde62UL, 0xd9e6ef23UL, - 0x14bce1bdUL, 0x0da7d0fcUL, 0x268a833fUL, 0x3f91b27eUL, 0x70d024b9UL, - 0x69cb15f8UL, 0x42e6463bUL, 0x5bfd777aUL, 0xdc656bb5UL, 0xc57e5af4UL, - 0xee530937UL, 0xf7483876UL, 0xb809aeb1UL, 0xa1129ff0UL, 0x8a3fcc33UL, - 0x9324fd72UL - }, - { - 0x00000000UL, 0x01c26a37UL, 0x0384d46eUL, 0x0246be59UL, 0x0709a8dcUL, - 0x06cbc2ebUL, 0x048d7cb2UL, 0x054f1685UL, 0x0e1351b8UL, 0x0fd13b8fUL, - 0x0d9785d6UL, 0x0c55efe1UL, 0x091af964UL, 0x08d89353UL, 0x0a9e2d0aUL, - 0x0b5c473dUL, 0x1c26a370UL, 0x1de4c947UL, 0x1fa2771eUL, 0x1e601d29UL, - 0x1b2f0bacUL, 0x1aed619bUL, 0x18abdfc2UL, 0x1969b5f5UL, 0x1235f2c8UL, - 0x13f798ffUL, 0x11b126a6UL, 0x10734c91UL, 0x153c5a14UL, 0x14fe3023UL, - 0x16b88e7aUL, 0x177ae44dUL, 0x384d46e0UL, 0x398f2cd7UL, 0x3bc9928eUL, - 0x3a0bf8b9UL, 0x3f44ee3cUL, 0x3e86840bUL, 0x3cc03a52UL, 0x3d025065UL, - 0x365e1758UL, 0x379c7d6fUL, 0x35dac336UL, 0x3418a901UL, 0x3157bf84UL, - 0x3095d5b3UL, 0x32d36beaUL, 0x331101ddUL, 0x246be590UL, 0x25a98fa7UL, - 0x27ef31feUL, 0x262d5bc9UL, 0x23624d4cUL, 0x22a0277bUL, 0x20e69922UL, - 0x2124f315UL, 0x2a78b428UL, 0x2bbade1fUL, 0x29fc6046UL, 0x283e0a71UL, - 0x2d711cf4UL, 0x2cb376c3UL, 0x2ef5c89aUL, 0x2f37a2adUL, 0x709a8dc0UL, - 0x7158e7f7UL, 0x731e59aeUL, 0x72dc3399UL, 0x7793251cUL, 0x76514f2bUL, - 0x7417f172UL, 0x75d59b45UL, 0x7e89dc78UL, 0x7f4bb64fUL, 0x7d0d0816UL, - 0x7ccf6221UL, 0x798074a4UL, 0x78421e93UL, 0x7a04a0caUL, 0x7bc6cafdUL, - 0x6cbc2eb0UL, 0x6d7e4487UL, 0x6f38fadeUL, 0x6efa90e9UL, 0x6bb5866cUL, - 0x6a77ec5bUL, 0x68315202UL, 0x69f33835UL, 0x62af7f08UL, 0x636d153fUL, - 0x612bab66UL, 0x60e9c151UL, 0x65a6d7d4UL, 0x6464bde3UL, 0x662203baUL, - 0x67e0698dUL, 0x48d7cb20UL, 0x4915a117UL, 0x4b531f4eUL, 0x4a917579UL, - 0x4fde63fcUL, 0x4e1c09cbUL, 0x4c5ab792UL, 0x4d98dda5UL, 0x46c49a98UL, - 0x4706f0afUL, 0x45404ef6UL, 0x448224c1UL, 0x41cd3244UL, 0x400f5873UL, - 0x4249e62aUL, 0x438b8c1dUL, 0x54f16850UL, 0x55330267UL, 0x5775bc3eUL, - 0x56b7d609UL, 0x53f8c08cUL, 0x523aaabbUL, 0x507c14e2UL, 0x51be7ed5UL, - 0x5ae239e8UL, 0x5b2053dfUL, 0x5966ed86UL, 0x58a487b1UL, 0x5deb9134UL, - 0x5c29fb03UL, 0x5e6f455aUL, 0x5fad2f6dUL, 0xe1351b80UL, 0xe0f771b7UL, - 0xe2b1cfeeUL, 0xe373a5d9UL, 0xe63cb35cUL, 0xe7fed96bUL, 0xe5b86732UL, - 0xe47a0d05UL, 0xef264a38UL, 0xeee4200fUL, 0xeca29e56UL, 0xed60f461UL, - 0xe82fe2e4UL, 0xe9ed88d3UL, 0xebab368aUL, 0xea695cbdUL, 0xfd13b8f0UL, - 0xfcd1d2c7UL, 0xfe976c9eUL, 0xff5506a9UL, 0xfa1a102cUL, 0xfbd87a1bUL, - 0xf99ec442UL, 0xf85cae75UL, 0xf300e948UL, 0xf2c2837fUL, 0xf0843d26UL, - 0xf1465711UL, 0xf4094194UL, 0xf5cb2ba3UL, 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0x914c7310UL, 0x145a3c15UL, 0x2330fe14UL, - 0x7a8eb816UL, 0x4de47a17UL, 0xe0464d38UL, 0xd72c8f39UL, 0x8e92c93bUL, - 0xb9f80b3aUL, 0x3cee443fUL, 0x0b84863eUL, 0x523ac03cUL, 0x6550023dUL, - 0x58175e36UL, 0x6f7d9c37UL, 0x36c3da35UL, 0x01a91834UL, 0x84bf5731UL, - 0xb3d59530UL, 0xea6bd332UL, 0xdd011133UL, 0x90e56b24UL, 0xa78fa925UL, - 0xfe31ef27UL, 0xc95b2d26UL, 0x4c4d6223UL, 0x7b27a022UL, 0x2299e620UL, - 0x15f32421UL, 0x28b4782aUL, 0x1fdeba2bUL, 0x4660fc29UL, 0x710a3e28UL, - 0xf41c712dUL, 0xc376b32cUL, 0x9ac8f52eUL, 0xada2372fUL, 0xc08d9a70UL, - 0xf7e75871UL, 0xae591e73UL, 0x9933dc72UL, 0x1c259377UL, 0x2b4f5176UL, - 0x72f11774UL, 0x459bd575UL, 0x78dc897eUL, 0x4fb64b7fUL, 0x16080d7dUL, - 0x2162cf7cUL, 0xa4748079UL, 0x931e4278UL, 0xcaa0047aUL, 0xfdcac67bUL, - 0xb02ebc6cUL, 0x87447e6dUL, 0xdefa386fUL, 0xe990fa6eUL, 0x6c86b56bUL, - 0x5bec776aUL, 0x02523168UL, 0x3538f369UL, 0x087faf62UL, 0x3f156d63UL, - 0x66ab2b61UL, 0x51c1e960UL, 0xd4d7a665UL, 0xe3bd6464UL, 0xba032266UL, - 0x8d69e067UL, 0x20cbd748UL, 0x17a11549UL, 0x4e1f534bUL, 0x7975914aUL, - 0xfc63de4fUL, 0xcb091c4eUL, 0x92b75a4cUL, 0xa5dd984dUL, 0x989ac446UL, - 0xaff00647UL, 0xf64e4045UL, 0xc1248244UL, 0x4432cd41UL, 0x73580f40UL, - 0x2ae64942UL, 0x1d8c8b43UL, 0x5068f154UL, 0x67023355UL, 0x3ebc7557UL, - 0x09d6b756UL, 0x8cc0f853UL, 0xbbaa3a52UL, 0xe2147c50UL, 0xd57ebe51UL, - 0xe839e25aUL, 0xdf53205bUL, 0x86ed6659UL, 0xb187a458UL, 0x3491eb5dUL, - 0x03fb295cUL, 0x5a456f5eUL, 0x6d2fad5fUL, 0x801b35e1UL, 0xb771f7e0UL, - 0xeecfb1e2UL, 0xd9a573e3UL, 0x5cb33ce6UL, 0x6bd9fee7UL, 0x3267b8e5UL, - 0x050d7ae4UL, 0x384a26efUL, 0x0f20e4eeUL, 0x569ea2ecUL, 0x61f460edUL, - 0xe4e22fe8UL, 0xd388ede9UL, 0x8a36abebUL, 0xbd5c69eaUL, 0xf0b813fdUL, - 0xc7d2d1fcUL, 0x9e6c97feUL, 0xa90655ffUL, 0x2c101afaUL, 0x1b7ad8fbUL, - 0x42c49ef9UL, 0x75ae5cf8UL, 0x48e900f3UL, 0x7f83c2f2UL, 0x263d84f0UL, - 0x115746f1UL, 0x944109f4UL, 0xa32bcbf5UL, 0xfa958df7UL, 0xcdff4ff6UL, - 0x605d78d9UL, 0x5737bad8UL, 0x0e89fcdaUL, 0x39e33edbUL, 0xbcf571deUL, - 0x8b9fb3dfUL, 0xd221f5ddUL, 0xe54b37dcUL, 0xd80c6bd7UL, 0xef66a9d6UL, - 0xb6d8efd4UL, 0x81b22dd5UL, 0x04a462d0UL, 0x33cea0d1UL, 0x6a70e6d3UL, - 0x5d1a24d2UL, 0x10fe5ec5UL, 0x27949cc4UL, 0x7e2adac6UL, 0x494018c7UL, - 0xcc5657c2UL, 0xfb3c95c3UL, 0xa282d3c1UL, 0x95e811c0UL, 0xa8af4dcbUL, - 0x9fc58fcaUL, 0xc67bc9c8UL, 0xf1110bc9UL, 0x740744ccUL, 0x436d86cdUL, - 0x1ad3c0cfUL, 0x2db902ceUL, 0x4096af91UL, 0x77fc6d90UL, 0x2e422b92UL, - 0x1928e993UL, 0x9c3ea696UL, 0xab546497UL, 0xf2ea2295UL, 0xc580e094UL, - 0xf8c7bc9fUL, 0xcfad7e9eUL, 0x9613389cUL, 0xa179fa9dUL, 0x246fb598UL, - 0x13057799UL, 0x4abb319bUL, 0x7dd1f39aUL, 0x3035898dUL, 0x075f4b8cUL, - 0x5ee10d8eUL, 0x698bcf8fUL, 0xec9d808aUL, 0xdbf7428bUL, 0x82490489UL, - 0xb523c688UL, 0x88649a83UL, 0xbf0e5882UL, 0xe6b01e80UL, 0xd1dadc81UL, - 0x54cc9384UL, 0x63a65185UL, 0x3a181787UL, 0x0d72d586UL, 0xa0d0e2a9UL, - 0x97ba20a8UL, 0xce0466aaUL, 0xf96ea4abUL, 0x7c78ebaeUL, 0x4b1229afUL, - 0x12ac6fadUL, 0x25c6adacUL, 0x1881f1a7UL, 0x2feb33a6UL, 0x765575a4UL, - 0x413fb7a5UL, 0xc429f8a0UL, 0xf3433aa1UL, 0xaafd7ca3UL, 0x9d97bea2UL, - 0xd073c4b5UL, 0xe71906b4UL, 0xbea740b6UL, 0x89cd82b7UL, 0x0cdbcdb2UL, - 0x3bb10fb3UL, 0x620f49b1UL, 0x55658bb0UL, 0x6822d7bbUL, 0x5f4815baUL, - 0x06f653b8UL, 0x319c91b9UL, 0xb48adebcUL, 0x83e01cbdUL, 0xda5e5abfUL, - 0xed3498beUL - }, - { - 0x00000000UL, 0x6567bcb8UL, 0x8bc809aaUL, 0xeeafb512UL, 0x5797628fUL, - 0x32f0de37UL, 0xdc5f6b25UL, 0xb938d79dUL, 0xef28b4c5UL, 0x8a4f087dUL, - 0x64e0bd6fUL, 0x018701d7UL, 0xb8bfd64aUL, 0xddd86af2UL, 0x3377dfe0UL, - 0x56106358UL, 0x9f571950UL, 0xfa30a5e8UL, 0x149f10faUL, 0x71f8ac42UL, - 0xc8c07bdfUL, 0xada7c767UL, 0x43087275UL, 0x266fcecdUL, 0x707fad95UL, - 0x1518112dUL, 0xfbb7a43fUL, 0x9ed01887UL, 0x27e8cf1aUL, 0x428f73a2UL, - 0xac20c6b0UL, 0xc9477a08UL, 0x3eaf32a0UL, 0x5bc88e18UL, 0xb5673b0aUL, - 0xd00087b2UL, 0x6938502fUL, 0x0c5fec97UL, 0xe2f05985UL, 0x8797e53dUL, - 0xd1878665UL, 0xb4e03addUL, 0x5a4f8fcfUL, 0x3f283377UL, 0x8610e4eaUL, - 0xe3775852UL, 0x0dd8ed40UL, 0x68bf51f8UL, 0xa1f82bf0UL, 0xc49f9748UL, - 0x2a30225aUL, 0x4f579ee2UL, 0xf66f497fUL, 0x9308f5c7UL, 0x7da740d5UL, - 0x18c0fc6dUL, 0x4ed09f35UL, 0x2bb7238dUL, 0xc518969fUL, 0xa07f2a27UL, - 0x1947fdbaUL, 0x7c204102UL, 0x928ff410UL, 0xf7e848a8UL, 0x3d58149bUL, - 0x583fa823UL, 0xb6901d31UL, 0xd3f7a189UL, 0x6acf7614UL, 0x0fa8caacUL, - 0xe1077fbeUL, 0x8460c306UL, 0xd270a05eUL, 0xb7171ce6UL, 0x59b8a9f4UL, - 0x3cdf154cUL, 0x85e7c2d1UL, 0xe0807e69UL, 0x0e2fcb7bUL, 0x6b4877c3UL, - 0xa20f0dcbUL, 0xc768b173UL, 0x29c70461UL, 0x4ca0b8d9UL, 0xf5986f44UL, - 0x90ffd3fcUL, 0x7e5066eeUL, 0x1b37da56UL, 0x4d27b90eUL, 0x284005b6UL, - 0xc6efb0a4UL, 0xa3880c1cUL, 0x1ab0db81UL, 0x7fd76739UL, 0x9178d22bUL, - 0xf41f6e93UL, 0x03f7263bUL, 0x66909a83UL, 0x883f2f91UL, 0xed589329UL, - 0x546044b4UL, 0x3107f80cUL, 0xdfa84d1eUL, 0xbacff1a6UL, 0xecdf92feUL, - 0x89b82e46UL, 0x67179b54UL, 0x027027ecUL, 0xbb48f071UL, 0xde2f4cc9UL, - 0x3080f9dbUL, 0x55e74563UL, 0x9ca03f6bUL, 0xf9c783d3UL, 0x176836c1UL, - 0x720f8a79UL, 0xcb375de4UL, 0xae50e15cUL, 0x40ff544eUL, 0x2598e8f6UL, - 0x73888baeUL, 0x16ef3716UL, 0xf8408204UL, 0x9d273ebcUL, 0x241fe921UL, - 0x41785599UL, 0xafd7e08bUL, 0xcab05c33UL, 0x3bb659edUL, 0x5ed1e555UL, - 0xb07e5047UL, 0xd519ecffUL, 0x6c213b62UL, 0x094687daUL, 0xe7e932c8UL, - 0x828e8e70UL, 0xd49eed28UL, 0xb1f95190UL, 0x5f56e482UL, 0x3a31583aUL, - 0x83098fa7UL, 0xe66e331fUL, 0x08c1860dUL, 0x6da63ab5UL, 0xa4e140bdUL, - 0xc186fc05UL, 0x2f294917UL, 0x4a4ef5afUL, 0xf3762232UL, 0x96119e8aUL, - 0x78be2b98UL, 0x1dd99720UL, 0x4bc9f478UL, 0x2eae48c0UL, 0xc001fdd2UL, - 0xa566416aUL, 0x1c5e96f7UL, 0x79392a4fUL, 0x97969f5dUL, 0xf2f123e5UL, - 0x05196b4dUL, 0x607ed7f5UL, 0x8ed162e7UL, 0xebb6de5fUL, 0x528e09c2UL, - 0x37e9b57aUL, 0xd9460068UL, 0xbc21bcd0UL, 0xea31df88UL, 0x8f566330UL, - 0x61f9d622UL, 0x049e6a9aUL, 0xbda6bd07UL, 0xd8c101bfUL, 0x366eb4adUL, - 0x53090815UL, 0x9a4e721dUL, 0xff29cea5UL, 0x11867bb7UL, 0x74e1c70fUL, - 0xcdd91092UL, 0xa8beac2aUL, 0x46111938UL, 0x2376a580UL, 0x7566c6d8UL, - 0x10017a60UL, 0xfeaecf72UL, 0x9bc973caUL, 0x22f1a457UL, 0x479618efUL, - 0xa939adfdUL, 0xcc5e1145UL, 0x06ee4d76UL, 0x6389f1ceUL, 0x8d2644dcUL, - 0xe841f864UL, 0x51792ff9UL, 0x341e9341UL, 0xdab12653UL, 0xbfd69aebUL, - 0xe9c6f9b3UL, 0x8ca1450bUL, 0x620ef019UL, 0x07694ca1UL, 0xbe519b3cUL, - 0xdb362784UL, 0x35999296UL, 0x50fe2e2eUL, 0x99b95426UL, 0xfcdee89eUL, - 0x12715d8cUL, 0x7716e134UL, 0xce2e36a9UL, 0xab498a11UL, 0x45e63f03UL, - 0x208183bbUL, 0x7691e0e3UL, 0x13f65c5bUL, 0xfd59e949UL, 0x983e55f1UL, - 0x2106826cUL, 0x44613ed4UL, 0xaace8bc6UL, 0xcfa9377eUL, 0x38417fd6UL, - 0x5d26c36eUL, 0xb389767cUL, 0xd6eecac4UL, 0x6fd61d59UL, 0x0ab1a1e1UL, - 0xe41e14f3UL, 0x8179a84bUL, 0xd769cb13UL, 0xb20e77abUL, 0x5ca1c2b9UL, - 0x39c67e01UL, 0x80fea99cUL, 0xe5991524UL, 0x0b36a036UL, 0x6e511c8eUL, - 0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, - 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, - 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, - 0xf10605deUL +local const z_crc_t FAR crc_table[] = { + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d}; + +#ifdef W + +#if W == 8 + +local const z_word_t FAR crc_big_table[] = { + 0x0000000000000000, 0x9630077700000000, 0x2c610eee00000000, + 0xba51099900000000, 0x19c46d0700000000, 0x8ff46a7000000000, + 0x35a563e900000000, 0xa395649e00000000, 0x3288db0e00000000, + 0xa4b8dc7900000000, 0x1ee9d5e000000000, 0x88d9d29700000000, + 0x2b4cb60900000000, 0xbd7cb17e00000000, 0x072db8e700000000, + 0x911dbf9000000000, 0x6410b71d00000000, 0xf220b06a00000000, + 0x4871b9f300000000, 0xde41be8400000000, 0x7dd4da1a00000000, + 0xebe4dd6d00000000, 0x51b5d4f400000000, 0xc785d38300000000, + 0x56986c1300000000, 0xc0a86b6400000000, 0x7af962fd00000000, + 0xecc9658a00000000, 0x4f5c011400000000, 0xd96c066300000000, + 0x633d0ffa00000000, 0xf50d088d00000000, 0xc8206e3b00000000, + 0x5e10694c00000000, 0xe44160d500000000, 0x727167a200000000, + 0xd1e4033c00000000, 0x47d4044b00000000, 0xfd850dd200000000, + 0x6bb50aa500000000, 0xfaa8b53500000000, 0x6c98b24200000000, + 0xd6c9bbdb00000000, 0x40f9bcac00000000, 0xe36cd83200000000, + 0x755cdf4500000000, 0xcf0dd6dc00000000, 0x593dd1ab00000000, + 0xac30d92600000000, 0x3a00de5100000000, 0x8051d7c800000000, + 0x1661d0bf00000000, 0xb5f4b42100000000, 0x23c4b35600000000, + 0x9995bacf00000000, 0x0fa5bdb800000000, 0x9eb8022800000000, + 0x0888055f00000000, 0xb2d90cc600000000, 0x24e90bb100000000, + 0x877c6f2f00000000, 0x114c685800000000, 0xab1d61c100000000, + 0x3d2d66b600000000, 0x9041dc7600000000, 0x0671db0100000000, + 0xbc20d29800000000, 0x2a10d5ef00000000, 0x8985b17100000000, + 0x1fb5b60600000000, 0xa5e4bf9f00000000, 0x33d4b8e800000000, + 0xa2c9077800000000, 0x34f9000f00000000, 0x8ea8099600000000, + 0x18980ee100000000, 0xbb0d6a7f00000000, 0x2d3d6d0800000000, + 0x976c649100000000, 0x015c63e600000000, 0xf4516b6b00000000, + 0x62616c1c00000000, 0xd830658500000000, 0x4e0062f200000000, + 0xed95066c00000000, 0x7ba5011b00000000, 0xc1f4088200000000, + 0x57c40ff500000000, 0xc6d9b06500000000, 0x50e9b71200000000, + 0xeab8be8b00000000, 0x7c88b9fc00000000, 0xdf1ddd6200000000, + 0x492dda1500000000, 0xf37cd38c00000000, 0x654cd4fb00000000, + 0x5861b24d00000000, 0xce51b53a00000000, 0x7400bca300000000, + 0xe230bbd400000000, 0x41a5df4a00000000, 0xd795d83d00000000, + 0x6dc4d1a400000000, 0xfbf4d6d300000000, 0x6ae9694300000000, + 0xfcd96e3400000000, 0x468867ad00000000, 0xd0b860da00000000, + 0x732d044400000000, 0xe51d033300000000, 0x5f4c0aaa00000000, + 0xc97c0ddd00000000, 0x3c71055000000000, 0xaa41022700000000, + 0x10100bbe00000000, 0x86200cc900000000, 0x25b5685700000000, + 0xb3856f2000000000, 0x09d466b900000000, 0x9fe461ce00000000, + 0x0ef9de5e00000000, 0x98c9d92900000000, 0x2298d0b000000000, + 0xb4a8d7c700000000, 0x173db35900000000, 0x810db42e00000000, + 0x3b5cbdb700000000, 0xad6cbac000000000, 0x2083b8ed00000000, + 0xb6b3bf9a00000000, 0x0ce2b60300000000, 0x9ad2b17400000000, + 0x3947d5ea00000000, 0xaf77d29d00000000, 0x1526db0400000000, + 0x8316dc7300000000, 0x120b63e300000000, 0x843b649400000000, + 0x3e6a6d0d00000000, 0xa85a6a7a00000000, 0x0bcf0ee400000000, + 0x9dff099300000000, 0x27ae000a00000000, 0xb19e077d00000000, + 0x44930ff000000000, 0xd2a3088700000000, 0x68f2011e00000000, + 0xfec2066900000000, 0x5d5762f700000000, 0xcb67658000000000, + 0x71366c1900000000, 0xe7066b6e00000000, 0x761bd4fe00000000, + 0xe02bd38900000000, 0x5a7ada1000000000, 0xcc4add6700000000, + 0x6fdfb9f900000000, 0xf9efbe8e00000000, 0x43beb71700000000, + 0xd58eb06000000000, 0xe8a3d6d600000000, 0x7e93d1a100000000, + 0xc4c2d83800000000, 0x52f2df4f00000000, 0xf167bbd100000000, + 0x6757bca600000000, 0xdd06b53f00000000, 0x4b36b24800000000, + 0xda2b0dd800000000, 0x4c1b0aaf00000000, 0xf64a033600000000, + 0x607a044100000000, 0xc3ef60df00000000, 0x55df67a800000000, + 0xef8e6e3100000000, 0x79be694600000000, 0x8cb361cb00000000, + 0x1a8366bc00000000, 0xa0d26f2500000000, 0x36e2685200000000, + 0x95770ccc00000000, 0x03470bbb00000000, 0xb916022200000000, + 0x2f26055500000000, 0xbe3bbac500000000, 0x280bbdb200000000, + 0x925ab42b00000000, 0x046ab35c00000000, 0xa7ffd7c200000000, + 0x31cfd0b500000000, 0x8b9ed92c00000000, 0x1daede5b00000000, + 0xb0c2649b00000000, 0x26f263ec00000000, 0x9ca36a7500000000, + 0x0a936d0200000000, 0xa906099c00000000, 0x3f360eeb00000000, + 0x8567077200000000, 0x1357000500000000, 0x824abf9500000000, + 0x147ab8e200000000, 0xae2bb17b00000000, 0x381bb60c00000000, + 0x9b8ed29200000000, 0x0dbed5e500000000, 0xb7efdc7c00000000, + 0x21dfdb0b00000000, 0xd4d2d38600000000, 0x42e2d4f100000000, + 0xf8b3dd6800000000, 0x6e83da1f00000000, 0xcd16be8100000000, + 0x5b26b9f600000000, 0xe177b06f00000000, 0x7747b71800000000, + 0xe65a088800000000, 0x706a0fff00000000, 0xca3b066600000000, + 0x5c0b011100000000, 0xff9e658f00000000, 0x69ae62f800000000, + 0xd3ff6b6100000000, 0x45cf6c1600000000, 0x78e20aa000000000, + 0xeed20dd700000000, 0x5483044e00000000, 0xc2b3033900000000, + 0x612667a700000000, 0xf71660d000000000, 0x4d47694900000000, + 0xdb776e3e00000000, 0x4a6ad1ae00000000, 0xdc5ad6d900000000, + 0x660bdf4000000000, 0xf03bd83700000000, 0x53aebca900000000, + 0xc59ebbde00000000, 0x7fcfb24700000000, 0xe9ffb53000000000, + 0x1cf2bdbd00000000, 0x8ac2baca00000000, 0x3093b35300000000, + 0xa6a3b42400000000, 0x0536d0ba00000000, 0x9306d7cd00000000, + 0x2957de5400000000, 0xbf67d92300000000, 0x2e7a66b300000000, + 0xb84a61c400000000, 0x021b685d00000000, 0x942b6f2a00000000, + 0x37be0bb400000000, 0xa18e0cc300000000, 0x1bdf055a00000000, + 0x8def022d00000000}; + +#else /* W == 4 */ + +local const z_word_t FAR crc_big_table[] = { + 0x00000000, 0x96300777, 0x2c610eee, 0xba510999, 0x19c46d07, + 0x8ff46a70, 0x35a563e9, 0xa395649e, 0x3288db0e, 0xa4b8dc79, + 0x1ee9d5e0, 0x88d9d297, 0x2b4cb609, 0xbd7cb17e, 0x072db8e7, + 0x911dbf90, 0x6410b71d, 0xf220b06a, 0x4871b9f3, 0xde41be84, + 0x7dd4da1a, 0xebe4dd6d, 0x51b5d4f4, 0xc785d383, 0x56986c13, + 0xc0a86b64, 0x7af962fd, 0xecc9658a, 0x4f5c0114, 0xd96c0663, + 0x633d0ffa, 0xf50d088d, 0xc8206e3b, 0x5e10694c, 0xe44160d5, + 0x727167a2, 0xd1e4033c, 0x47d4044b, 0xfd850dd2, 0x6bb50aa5, + 0xfaa8b535, 0x6c98b242, 0xd6c9bbdb, 0x40f9bcac, 0xe36cd832, + 0x755cdf45, 0xcf0dd6dc, 0x593dd1ab, 0xac30d926, 0x3a00de51, + 0x8051d7c8, 0x1661d0bf, 0xb5f4b421, 0x23c4b356, 0x9995bacf, + 0x0fa5bdb8, 0x9eb80228, 0x0888055f, 0xb2d90cc6, 0x24e90bb1, + 0x877c6f2f, 0x114c6858, 0xab1d61c1, 0x3d2d66b6, 0x9041dc76, + 0x0671db01, 0xbc20d298, 0x2a10d5ef, 0x8985b171, 0x1fb5b606, + 0xa5e4bf9f, 0x33d4b8e8, 0xa2c90778, 0x34f9000f, 0x8ea80996, + 0x18980ee1, 0xbb0d6a7f, 0x2d3d6d08, 0x976c6491, 0x015c63e6, + 0xf4516b6b, 0x62616c1c, 0xd8306585, 0x4e0062f2, 0xed95066c, + 0x7ba5011b, 0xc1f40882, 0x57c40ff5, 0xc6d9b065, 0x50e9b712, + 0xeab8be8b, 0x7c88b9fc, 0xdf1ddd62, 0x492dda15, 0xf37cd38c, + 0x654cd4fb, 0x5861b24d, 0xce51b53a, 0x7400bca3, 0xe230bbd4, + 0x41a5df4a, 0xd795d83d, 0x6dc4d1a4, 0xfbf4d6d3, 0x6ae96943, + 0xfcd96e34, 0x468867ad, 0xd0b860da, 0x732d0444, 0xe51d0333, + 0x5f4c0aaa, 0xc97c0ddd, 0x3c710550, 0xaa410227, 0x10100bbe, + 0x86200cc9, 0x25b56857, 0xb3856f20, 0x09d466b9, 0x9fe461ce, + 0x0ef9de5e, 0x98c9d929, 0x2298d0b0, 0xb4a8d7c7, 0x173db359, + 0x810db42e, 0x3b5cbdb7, 0xad6cbac0, 0x2083b8ed, 0xb6b3bf9a, + 0x0ce2b603, 0x9ad2b174, 0x3947d5ea, 0xaf77d29d, 0x1526db04, + 0x8316dc73, 0x120b63e3, 0x843b6494, 0x3e6a6d0d, 0xa85a6a7a, + 0x0bcf0ee4, 0x9dff0993, 0x27ae000a, 0xb19e077d, 0x44930ff0, + 0xd2a30887, 0x68f2011e, 0xfec20669, 0x5d5762f7, 0xcb676580, + 0x71366c19, 0xe7066b6e, 0x761bd4fe, 0xe02bd389, 0x5a7ada10, + 0xcc4add67, 0x6fdfb9f9, 0xf9efbe8e, 0x43beb717, 0xd58eb060, + 0xe8a3d6d6, 0x7e93d1a1, 0xc4c2d838, 0x52f2df4f, 0xf167bbd1, + 0x6757bca6, 0xdd06b53f, 0x4b36b248, 0xda2b0dd8, 0x4c1b0aaf, + 0xf64a0336, 0x607a0441, 0xc3ef60df, 0x55df67a8, 0xef8e6e31, + 0x79be6946, 0x8cb361cb, 0x1a8366bc, 0xa0d26f25, 0x36e26852, + 0x95770ccc, 0x03470bbb, 0xb9160222, 0x2f260555, 0xbe3bbac5, + 0x280bbdb2, 0x925ab42b, 0x046ab35c, 0xa7ffd7c2, 0x31cfd0b5, + 0x8b9ed92c, 0x1daede5b, 0xb0c2649b, 0x26f263ec, 0x9ca36a75, + 0x0a936d02, 0xa906099c, 0x3f360eeb, 0x85670772, 0x13570005, + 0x824abf95, 0x147ab8e2, 0xae2bb17b, 0x381bb60c, 0x9b8ed292, + 0x0dbed5e5, 0xb7efdc7c, 0x21dfdb0b, 0xd4d2d386, 0x42e2d4f1, + 0xf8b3dd68, 0x6e83da1f, 0xcd16be81, 0x5b26b9f6, 0xe177b06f, + 0x7747b718, 0xe65a0888, 0x706a0fff, 0xca3b0666, 0x5c0b0111, + 0xff9e658f, 0x69ae62f8, 0xd3ff6b61, 0x45cf6c16, 0x78e20aa0, + 0xeed20dd7, 0x5483044e, 0xc2b30339, 0x612667a7, 0xf71660d0, + 0x4d476949, 0xdb776e3e, 0x4a6ad1ae, 0xdc5ad6d9, 0x660bdf40, + 0xf03bd837, 0x53aebca9, 0xc59ebbde, 0x7fcfb247, 0xe9ffb530, + 0x1cf2bdbd, 0x8ac2baca, 0x3093b353, 0xa6a3b424, 0x0536d0ba, + 0x9306d7cd, 0x2957de54, 0xbf67d923, 0x2e7a66b3, 0xb84a61c4, + 0x021b685d, 0x942b6f2a, 0x37be0bb4, 0xa18e0cc3, 0x1bdf055a, + 0x8def022d}; + +#endif + +#if N == 1 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xccaa009e, 0x4225077d, 0x8e8f07e3, 0x844a0efa, + 0x48e00e64, 0xc66f0987, 0x0ac50919, 0xd3e51bb5, 0x1f4f1b2b, + 0x91c01cc8, 0x5d6a1c56, 0x57af154f, 0x9b0515d1, 0x158a1232, + 0xd92012ac, 0x7cbb312b, 0xb01131b5, 0x3e9e3656, 0xf23436c8, + 0xf8f13fd1, 0x345b3f4f, 0xbad438ac, 0x767e3832, 0xaf5e2a9e, + 0x63f42a00, 0xed7b2de3, 0x21d12d7d, 0x2b142464, 0xe7be24fa, + 0x69312319, 0xa59b2387, 0xf9766256, 0x35dc62c8, 0xbb53652b, + 0x77f965b5, 0x7d3c6cac, 0xb1966c32, 0x3f196bd1, 0xf3b36b4f, + 0x2a9379e3, 0xe639797d, 0x68b67e9e, 0xa41c7e00, 0xaed97719, + 0x62737787, 0xecfc7064, 0x205670fa, 0x85cd537d, 0x496753e3, + 0xc7e85400, 0x0b42549e, 0x01875d87, 0xcd2d5d19, 0x43a25afa, + 0x8f085a64, 0x562848c8, 0x9a824856, 0x140d4fb5, 0xd8a74f2b, + 0xd2624632, 0x1ec846ac, 0x9047414f, 0x5ced41d1, 0x299dc2ed, + 0xe537c273, 0x6bb8c590, 0xa712c50e, 0xadd7cc17, 0x617dcc89, + 0xeff2cb6a, 0x2358cbf4, 0xfa78d958, 0x36d2d9c6, 0xb85dde25, + 0x74f7debb, 0x7e32d7a2, 0xb298d73c, 0x3c17d0df, 0xf0bdd041, + 0x5526f3c6, 0x998cf358, 0x1703f4bb, 0xdba9f425, 0xd16cfd3c, + 0x1dc6fda2, 0x9349fa41, 0x5fe3fadf, 0x86c3e873, 0x4a69e8ed, + 0xc4e6ef0e, 0x084cef90, 0x0289e689, 0xce23e617, 0x40ace1f4, + 0x8c06e16a, 0xd0eba0bb, 0x1c41a025, 0x92cea7c6, 0x5e64a758, + 0x54a1ae41, 0x980baedf, 0x1684a93c, 0xda2ea9a2, 0x030ebb0e, + 0xcfa4bb90, 0x412bbc73, 0x8d81bced, 0x8744b5f4, 0x4beeb56a, + 0xc561b289, 0x09cbb217, 0xac509190, 0x60fa910e, 0xee7596ed, + 0x22df9673, 0x281a9f6a, 0xe4b09ff4, 0x6a3f9817, 0xa6959889, + 0x7fb58a25, 0xb31f8abb, 0x3d908d58, 0xf13a8dc6, 0xfbff84df, + 0x37558441, 0xb9da83a2, 0x7570833c, 0x533b85da, 0x9f918544, + 0x111e82a7, 0xddb48239, 0xd7718b20, 0x1bdb8bbe, 0x95548c5d, + 0x59fe8cc3, 0x80de9e6f, 0x4c749ef1, 0xc2fb9912, 0x0e51998c, + 0x04949095, 0xc83e900b, 0x46b197e8, 0x8a1b9776, 0x2f80b4f1, + 0xe32ab46f, 0x6da5b38c, 0xa10fb312, 0xabcaba0b, 0x6760ba95, + 0xe9efbd76, 0x2545bde8, 0xfc65af44, 0x30cfafda, 0xbe40a839, + 0x72eaa8a7, 0x782fa1be, 0xb485a120, 0x3a0aa6c3, 0xf6a0a65d, + 0xaa4de78c, 0x66e7e712, 0xe868e0f1, 0x24c2e06f, 0x2e07e976, + 0xe2ade9e8, 0x6c22ee0b, 0xa088ee95, 0x79a8fc39, 0xb502fca7, + 0x3b8dfb44, 0xf727fbda, 0xfde2f2c3, 0x3148f25d, 0xbfc7f5be, + 0x736df520, 0xd6f6d6a7, 0x1a5cd639, 0x94d3d1da, 0x5879d144, + 0x52bcd85d, 0x9e16d8c3, 0x1099df20, 0xdc33dfbe, 0x0513cd12, + 0xc9b9cd8c, 0x4736ca6f, 0x8b9ccaf1, 0x8159c3e8, 0x4df3c376, + 0xc37cc495, 0x0fd6c40b, 0x7aa64737, 0xb60c47a9, 0x3883404a, + 0xf42940d4, 0xfeec49cd, 0x32464953, 0xbcc94eb0, 0x70634e2e, + 0xa9435c82, 0x65e95c1c, 0xeb665bff, 0x27cc5b61, 0x2d095278, + 0xe1a352e6, 0x6f2c5505, 0xa386559b, 0x061d761c, 0xcab77682, + 0x44387161, 0x889271ff, 0x825778e6, 0x4efd7878, 0xc0727f9b, + 0x0cd87f05, 0xd5f86da9, 0x19526d37, 0x97dd6ad4, 0x5b776a4a, + 0x51b26353, 0x9d1863cd, 0x1397642e, 0xdf3d64b0, 0x83d02561, + 0x4f7a25ff, 0xc1f5221c, 0x0d5f2282, 0x079a2b9b, 0xcb302b05, + 0x45bf2ce6, 0x89152c78, 0x50353ed4, 0x9c9f3e4a, 0x121039a9, + 0xdeba3937, 0xd47f302e, 0x18d530b0, 0x965a3753, 0x5af037cd, + 0xff6b144a, 0x33c114d4, 0xbd4e1337, 0x71e413a9, 0x7b211ab0, + 0xb78b1a2e, 0x39041dcd, 0xf5ae1d53, 0x2c8e0fff, 0xe0240f61, + 0x6eab0882, 0xa201081c, 0xa8c40105, 0x646e019b, 0xeae10678, + 0x264b06e6}, + {0x00000000, 0xa6770bb4, 0x979f1129, 0x31e81a9d, 0xf44f2413, + 0x52382fa7, 0x63d0353a, 0xc5a73e8e, 0x33ef4e67, 0x959845d3, + 0xa4705f4e, 0x020754fa, 0xc7a06a74, 0x61d761c0, 0x503f7b5d, + 0xf64870e9, 0x67de9cce, 0xc1a9977a, 0xf0418de7, 0x56368653, + 0x9391b8dd, 0x35e6b369, 0x040ea9f4, 0xa279a240, 0x5431d2a9, + 0xf246d91d, 0xc3aec380, 0x65d9c834, 0xa07ef6ba, 0x0609fd0e, + 0x37e1e793, 0x9196ec27, 0xcfbd399c, 0x69ca3228, 0x582228b5, + 0xfe552301, 0x3bf21d8f, 0x9d85163b, 0xac6d0ca6, 0x0a1a0712, + 0xfc5277fb, 0x5a257c4f, 0x6bcd66d2, 0xcdba6d66, 0x081d53e8, + 0xae6a585c, 0x9f8242c1, 0x39f54975, 0xa863a552, 0x0e14aee6, + 0x3ffcb47b, 0x998bbfcf, 0x5c2c8141, 0xfa5b8af5, 0xcbb39068, + 0x6dc49bdc, 0x9b8ceb35, 0x3dfbe081, 0x0c13fa1c, 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0x62cc1cd4, + 0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0, 0x5e7ef3ec, + 0x4765c2ad, 0x6c48916e, 0x7553a02f, 0x3a1236e8, 0x230907a9, + 0x0824546a, 0x113f652b, 0x96a779e4, 0x8fbc48a5, 0xa4911b66, + 0xbd8a2a27, 0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23, + 0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e, 0x70d024b9, + 0x69cb15f8, 0x42e6463b, 0x5bfd777a, 0xdc656bb5, 0xc57e5af4, + 0xee530937, 0xf7483876, 0xb809aeb1, 0xa1129ff0, 0x8a3fcc33, + 0x9324fd72}, + {0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0x9630077700000000, 0x2c610eee00000000, + 0xba51099900000000, 0x19c46d0700000000, 0x8ff46a7000000000, + 0x35a563e900000000, 0xa395649e00000000, 0x3288db0e00000000, + 0xa4b8dc7900000000, 0x1ee9d5e000000000, 0x88d9d29700000000, + 0x2b4cb60900000000, 0xbd7cb17e00000000, 0x072db8e700000000, + 0x911dbf9000000000, 0x6410b71d00000000, 0xf220b06a00000000, + 0x4871b9f300000000, 0xde41be8400000000, 0x7dd4da1a00000000, + 0xebe4dd6d00000000, 0x51b5d4f400000000, 0xc785d38300000000, + 0x56986c1300000000, 0xc0a86b6400000000, 0x7af962fd00000000, + 0xecc9658a00000000, 0x4f5c011400000000, 0xd96c066300000000, + 0x633d0ffa00000000, 0xf50d088d00000000, 0xc8206e3b00000000, + 0x5e10694c00000000, 0xe44160d500000000, 0x727167a200000000, + 0xd1e4033c00000000, 0x47d4044b00000000, 0xfd850dd200000000, + 0x6bb50aa500000000, 0xfaa8b53500000000, 0x6c98b24200000000, + 0xd6c9bbdb00000000, 0x40f9bcac00000000, 0xe36cd83200000000, + 0x755cdf4500000000, 0xcf0dd6dc00000000, 0x593dd1ab00000000, + 0xac30d92600000000, 0x3a00de5100000000, 0x8051d7c800000000, + 0x1661d0bf00000000, 0xb5f4b42100000000, 0x23c4b35600000000, + 0x9995bacf00000000, 0x0fa5bdb800000000, 0x9eb8022800000000, + 0x0888055f00000000, 0xb2d90cc600000000, 0x24e90bb100000000, + 0x877c6f2f00000000, 0x114c685800000000, 0xab1d61c100000000, + 0x3d2d66b600000000, 0x9041dc7600000000, 0x0671db0100000000, + 0xbc20d29800000000, 0x2a10d5ef00000000, 0x8985b17100000000, + 0x1fb5b60600000000, 0xa5e4bf9f00000000, 0x33d4b8e800000000, + 0xa2c9077800000000, 0x34f9000f00000000, 0x8ea8099600000000, + 0x18980ee100000000, 0xbb0d6a7f00000000, 0x2d3d6d0800000000, + 0x976c649100000000, 0x015c63e600000000, 0xf4516b6b00000000, + 0x62616c1c00000000, 0xd830658500000000, 0x4e0062f200000000, + 0xed95066c00000000, 0x7ba5011b00000000, 0xc1f4088200000000, + 0x57c40ff500000000, 0xc6d9b06500000000, 0x50e9b71200000000, + 0xeab8be8b00000000, 0x7c88b9fc00000000, 0xdf1ddd6200000000, + 0x492dda1500000000, 0xf37cd38c00000000, 0x654cd4fb00000000, + 0x5861b24d00000000, 0xce51b53a00000000, 0x7400bca300000000, + 0xe230bbd400000000, 0x41a5df4a00000000, 0xd795d83d00000000, + 0x6dc4d1a400000000, 0xfbf4d6d300000000, 0x6ae9694300000000, + 0xfcd96e3400000000, 0x468867ad00000000, 0xd0b860da00000000, + 0x732d044400000000, 0xe51d033300000000, 0x5f4c0aaa00000000, + 0xc97c0ddd00000000, 0x3c71055000000000, 0xaa41022700000000, + 0x10100bbe00000000, 0x86200cc900000000, 0x25b5685700000000, + 0xb3856f2000000000, 0x09d466b900000000, 0x9fe461ce00000000, + 0x0ef9de5e00000000, 0x98c9d92900000000, 0x2298d0b000000000, + 0xb4a8d7c700000000, 0x173db35900000000, 0x810db42e00000000, + 0x3b5cbdb700000000, 0xad6cbac000000000, 0x2083b8ed00000000, + 0xb6b3bf9a00000000, 0x0ce2b60300000000, 0x9ad2b17400000000, + 0x3947d5ea00000000, 0xaf77d29d00000000, 0x1526db0400000000, + 0x8316dc7300000000, 0x120b63e300000000, 0x843b649400000000, + 0x3e6a6d0d00000000, 0xa85a6a7a00000000, 0x0bcf0ee400000000, + 0x9dff099300000000, 0x27ae000a00000000, 0xb19e077d00000000, + 0x44930ff000000000, 0xd2a3088700000000, 0x68f2011e00000000, + 0xfec2066900000000, 0x5d5762f700000000, 0xcb67658000000000, + 0x71366c1900000000, 0xe7066b6e00000000, 0x761bd4fe00000000, + 0xe02bd38900000000, 0x5a7ada1000000000, 0xcc4add6700000000, + 0x6fdfb9f900000000, 0xf9efbe8e00000000, 0x43beb71700000000, + 0xd58eb06000000000, 0xe8a3d6d600000000, 0x7e93d1a100000000, + 0xc4c2d83800000000, 0x52f2df4f00000000, 0xf167bbd100000000, + 0x6757bca600000000, 0xdd06b53f00000000, 0x4b36b24800000000, + 0xda2b0dd800000000, 0x4c1b0aaf00000000, 0xf64a033600000000, + 0x607a044100000000, 0xc3ef60df00000000, 0x55df67a800000000, + 0xef8e6e3100000000, 0x79be694600000000, 0x8cb361cb00000000, + 0x1a8366bc00000000, 0xa0d26f2500000000, 0x36e2685200000000, + 0x95770ccc00000000, 0x03470bbb00000000, 0xb916022200000000, + 0x2f26055500000000, 0xbe3bbac500000000, 0x280bbdb200000000, + 0x925ab42b00000000, 0x046ab35c00000000, 0xa7ffd7c200000000, + 0x31cfd0b500000000, 0x8b9ed92c00000000, 0x1daede5b00000000, + 0xb0c2649b00000000, 0x26f263ec00000000, 0x9ca36a7500000000, + 0x0a936d0200000000, 0xa906099c00000000, 0x3f360eeb00000000, + 0x8567077200000000, 0x1357000500000000, 0x824abf9500000000, + 0x147ab8e200000000, 0xae2bb17b00000000, 0x381bb60c00000000, + 0x9b8ed29200000000, 0x0dbed5e500000000, 0xb7efdc7c00000000, + 0x21dfdb0b00000000, 0xd4d2d38600000000, 0x42e2d4f100000000, + 0xf8b3dd6800000000, 0x6e83da1f00000000, 0xcd16be8100000000, + 0x5b26b9f600000000, 0xe177b06f00000000, 0x7747b71800000000, + 0xe65a088800000000, 0x706a0fff00000000, 0xca3b066600000000, + 0x5c0b011100000000, 0xff9e658f00000000, 0x69ae62f800000000, + 0xd3ff6b6100000000, 0x45cf6c1600000000, 0x78e20aa000000000, + 0xeed20dd700000000, 0x5483044e00000000, 0xc2b3033900000000, + 0x612667a700000000, 0xf71660d000000000, 0x4d47694900000000, + 0xdb776e3e00000000, 0x4a6ad1ae00000000, 0xdc5ad6d900000000, + 0x660bdf4000000000, 0xf03bd83700000000, 0x53aebca900000000, + 0xc59ebbde00000000, 0x7fcfb24700000000, 0xe9ffb53000000000, + 0x1cf2bdbd00000000, 0x8ac2baca00000000, 0x3093b35300000000, + 0xa6a3b42400000000, 0x0536d0ba00000000, 0x9306d7cd00000000, + 0x2957de5400000000, 0xbf67d92300000000, 0x2e7a66b300000000, + 0xb84a61c400000000, 0x021b685d00000000, 0x942b6f2a00000000, + 0x37be0bb400000000, 0xa18e0cc300000000, 0x1bdf055a00000000, + 0x8def022d00000000}, + {0x0000000000000000, 0x41311b1900000000, 0x8262363200000000, + 0xc3532d2b00000000, 0x04c56c6400000000, 0x45f4777d00000000, + 0x86a75a5600000000, 0xc796414f00000000, 0x088ad9c800000000, + 0x49bbc2d100000000, 0x8ae8effa00000000, 0xcbd9f4e300000000, + 0x0c4fb5ac00000000, 0x4d7eaeb500000000, 0x8e2d839e00000000, + 0xcf1c988700000000, 0x5112c24a00000000, 0x1023d95300000000, + 0xd370f47800000000, 0x9241ef6100000000, 0x55d7ae2e00000000, + 0x14e6b53700000000, 0xd7b5981c00000000, 0x9684830500000000, + 0x59981b8200000000, 0x18a9009b00000000, 0xdbfa2db000000000, + 0x9acb36a900000000, 0x5d5d77e600000000, 0x1c6c6cff00000000, + 0xdf3f41d400000000, 0x9e0e5acd00000000, 0xa224849500000000, + 0xe3159f8c00000000, 0x2046b2a700000000, 0x6177a9be00000000, + 0xa6e1e8f100000000, 0xe7d0f3e800000000, 0x2483dec300000000, + 0x65b2c5da00000000, 0xaaae5d5d00000000, 0xeb9f464400000000, + 0x28cc6b6f00000000, 0x69fd707600000000, 0xae6b313900000000, + 0xef5a2a2000000000, 0x2c09070b00000000, 0x6d381c1200000000, + 0xf33646df00000000, 0xb2075dc600000000, 0x715470ed00000000, + 0x30656bf400000000, 0xf7f32abb00000000, 0xb6c231a200000000, + 0x75911c8900000000, 0x34a0079000000000, 0xfbbc9f1700000000, + 0xba8d840e00000000, 0x79dea92500000000, 0x38efb23c00000000, + 0xff79f37300000000, 0xbe48e86a00000000, 0x7d1bc54100000000, + 0x3c2ade5800000000, 0x054f79f000000000, 0x447e62e900000000, + 0x872d4fc200000000, 0xc61c54db00000000, 0x018a159400000000, + 0x40bb0e8d00000000, 0x83e823a600000000, 0xc2d938bf00000000, + 0x0dc5a03800000000, 0x4cf4bb2100000000, 0x8fa7960a00000000, + 0xce968d1300000000, 0x0900cc5c00000000, 0x4831d74500000000, + 0x8b62fa6e00000000, 0xca53e17700000000, 0x545dbbba00000000, + 0x156ca0a300000000, 0xd63f8d8800000000, 0x970e969100000000, + 0x5098d7de00000000, 0x11a9ccc700000000, 0xd2fae1ec00000000, + 0x93cbfaf500000000, 0x5cd7627200000000, 0x1de6796b00000000, + 0xdeb5544000000000, 0x9f844f5900000000, 0x58120e1600000000, + 0x1923150f00000000, 0xda70382400000000, 0x9b41233d00000000, + 0xa76bfd6500000000, 0xe65ae67c00000000, 0x2509cb5700000000, + 0x6438d04e00000000, 0xa3ae910100000000, 0xe29f8a1800000000, + 0x21cca73300000000, 0x60fdbc2a00000000, 0xafe124ad00000000, + 0xeed03fb400000000, 0x2d83129f00000000, 0x6cb2098600000000, + 0xab2448c900000000, 0xea1553d000000000, 0x29467efb00000000, + 0x687765e200000000, 0xf6793f2f00000000, 0xb748243600000000, + 0x741b091d00000000, 0x352a120400000000, 0xf2bc534b00000000, + 0xb38d485200000000, 0x70de657900000000, 0x31ef7e6000000000, + 0xfef3e6e700000000, 0xbfc2fdfe00000000, 0x7c91d0d500000000, + 0x3da0cbcc00000000, 0xfa368a8300000000, 0xbb07919a00000000, + 0x7854bcb100000000, 0x3965a7a800000000, 0x4b98833b00000000, + 0x0aa9982200000000, 0xc9fab50900000000, 0x88cbae1000000000, + 0x4f5def5f00000000, 0x0e6cf44600000000, 0xcd3fd96d00000000, + 0x8c0ec27400000000, 0x43125af300000000, 0x022341ea00000000, + 0xc1706cc100000000, 0x804177d800000000, 0x47d7369700000000, + 0x06e62d8e00000000, 0xc5b500a500000000, 0x84841bbc00000000, + 0x1a8a417100000000, 0x5bbb5a6800000000, 0x98e8774300000000, + 0xd9d96c5a00000000, 0x1e4f2d1500000000, 0x5f7e360c00000000, + 0x9c2d1b2700000000, 0xdd1c003e00000000, 0x120098b900000000, + 0x533183a000000000, 0x9062ae8b00000000, 0xd153b59200000000, + 0x16c5f4dd00000000, 0x57f4efc400000000, 0x94a7c2ef00000000, + 0xd596d9f600000000, 0xe9bc07ae00000000, 0xa88d1cb700000000, + 0x6bde319c00000000, 0x2aef2a8500000000, 0xed796bca00000000, + 0xac4870d300000000, 0x6f1b5df800000000, 0x2e2a46e100000000, + 0xe136de6600000000, 0xa007c57f00000000, 0x6354e85400000000, + 0x2265f34d00000000, 0xe5f3b20200000000, 0xa4c2a91b00000000, + 0x6791843000000000, 0x26a09f2900000000, 0xb8aec5e400000000, + 0xf99fdefd00000000, 0x3accf3d600000000, 0x7bfde8cf00000000, + 0xbc6ba98000000000, 0xfd5ab29900000000, 0x3e099fb200000000, + 0x7f3884ab00000000, 0xb0241c2c00000000, 0xf115073500000000, + 0x32462a1e00000000, 0x7377310700000000, 0xb4e1704800000000, + 0xf5d06b5100000000, 0x3683467a00000000, 0x77b25d6300000000, + 0x4ed7facb00000000, 0x0fe6e1d200000000, 0xccb5ccf900000000, + 0x8d84d7e000000000, 0x4a1296af00000000, 0x0b238db600000000, + 0xc870a09d00000000, 0x8941bb8400000000, 0x465d230300000000, + 0x076c381a00000000, 0xc43f153100000000, 0x850e0e2800000000, + 0x42984f6700000000, 0x03a9547e00000000, 0xc0fa795500000000, + 0x81cb624c00000000, 0x1fc5388100000000, 0x5ef4239800000000, + 0x9da70eb300000000, 0xdc9615aa00000000, 0x1b0054e500000000, + 0x5a314ffc00000000, 0x996262d700000000, 0xd85379ce00000000, + 0x174fe14900000000, 0x567efa5000000000, 0x952dd77b00000000, + 0xd41ccc6200000000, 0x138a8d2d00000000, 0x52bb963400000000, + 0x91e8bb1f00000000, 0xd0d9a00600000000, 0xecf37e5e00000000, + 0xadc2654700000000, 0x6e91486c00000000, 0x2fa0537500000000, + 0xe836123a00000000, 0xa907092300000000, 0x6a54240800000000, + 0x2b653f1100000000, 0xe479a79600000000, 0xa548bc8f00000000, + 0x661b91a400000000, 0x272a8abd00000000, 0xe0bccbf200000000, + 0xa18dd0eb00000000, 0x62defdc000000000, 0x23efe6d900000000, + 0xbde1bc1400000000, 0xfcd0a70d00000000, 0x3f838a2600000000, + 0x7eb2913f00000000, 0xb924d07000000000, 0xf815cb6900000000, + 0x3b46e64200000000, 0x7a77fd5b00000000, 0xb56b65dc00000000, + 0xf45a7ec500000000, 0x370953ee00000000, 0x763848f700000000, + 0xb1ae09b800000000, 0xf09f12a100000000, 0x33cc3f8a00000000, + 0x72fd249300000000}, + {0x0000000000000000, 0x376ac20100000000, 0x6ed4840300000000, + 0x59be460200000000, 0xdca8090700000000, 0xebc2cb0600000000, + 0xb27c8d0400000000, 0x85164f0500000000, 0xb851130e00000000, + 0x8f3bd10f00000000, 0xd685970d00000000, 0xe1ef550c00000000, + 0x64f91a0900000000, 0x5393d80800000000, 0x0a2d9e0a00000000, + 0x3d475c0b00000000, 0x70a3261c00000000, 0x47c9e41d00000000, + 0x1e77a21f00000000, 0x291d601e00000000, 0xac0b2f1b00000000, + 0x9b61ed1a00000000, 0xc2dfab1800000000, 0xf5b5691900000000, + 0xc8f2351200000000, 0xff98f71300000000, 0xa626b11100000000, + 0x914c731000000000, 0x145a3c1500000000, 0x2330fe1400000000, + 0x7a8eb81600000000, 0x4de47a1700000000, 0xe0464d3800000000, + 0xd72c8f3900000000, 0x8e92c93b00000000, 0xb9f80b3a00000000, + 0x3cee443f00000000, 0x0b84863e00000000, 0x523ac03c00000000, + 0x6550023d00000000, 0x58175e3600000000, 0x6f7d9c3700000000, + 0x36c3da3500000000, 0x01a9183400000000, 0x84bf573100000000, + 0xb3d5953000000000, 0xea6bd33200000000, 0xdd01113300000000, + 0x90e56b2400000000, 0xa78fa92500000000, 0xfe31ef2700000000, + 0xc95b2d2600000000, 0x4c4d622300000000, 0x7b27a02200000000, + 0x2299e62000000000, 0x15f3242100000000, 0x28b4782a00000000, + 0x1fdeba2b00000000, 0x4660fc2900000000, 0x710a3e2800000000, + 0xf41c712d00000000, 0xc376b32c00000000, 0x9ac8f52e00000000, + 0xada2372f00000000, 0xc08d9a7000000000, 0xf7e7587100000000, + 0xae591e7300000000, 0x9933dc7200000000, 0x1c25937700000000, + 0x2b4f517600000000, 0x72f1177400000000, 0x459bd57500000000, + 0x78dc897e00000000, 0x4fb64b7f00000000, 0x16080d7d00000000, + 0x2162cf7c00000000, 0xa474807900000000, 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0x6e0344d000000000, 0xbe79e49700000000, 0x0e5084aa00000000, + 0x5d50344800000000, 0xed79547500000000, 0x3d03f43200000000, + 0x8d2a940f00000000, 0x9df6b4bd00000000, 0x2ddfd48000000000, + 0xfda574c700000000, 0x4d8c14fa00000000, 0x9c1b447800000000, + 0x2c32244500000000, 0xfc48840200000000, 0x4c61e43f00000000, + 0x5cbdc48d00000000, 0xec94a4b000000000, 0x3cee04f700000000, + 0x8cc764ca00000000}, + {0x0000000000000000, 0xa5d35ccb00000000, 0x0ba1c84d00000000, + 0xae72948600000000, 0x1642919b00000000, 0xb391cd5000000000, + 0x1de359d600000000, 0xb830051d00000000, 0x6d8253ec00000000, + 0xc8510f2700000000, 0x66239ba100000000, 0xc3f0c76a00000000, + 0x7bc0c27700000000, 0xde139ebc00000000, 0x70610a3a00000000, + 0xd5b256f100000000, 0x9b02d60300000000, 0x3ed18ac800000000, + 0x90a31e4e00000000, 0x3570428500000000, 0x8d40479800000000, + 0x28931b5300000000, 0x86e18fd500000000, 0x2332d31e00000000, + 0xf68085ef00000000, 0x5353d92400000000, 0xfd214da200000000, + 0x58f2116900000000, 0xe0c2147400000000, 0x451148bf00000000, + 0xeb63dc3900000000, 0x4eb080f200000000, 0x3605ac0700000000, + 0x93d6f0cc00000000, 0x3da4644a00000000, 0x9877388100000000, + 0x20473d9c00000000, 0x8594615700000000, 0x2be6f5d100000000, + 0x8e35a91a00000000, 0x5b87ffeb00000000, 0xfe54a32000000000, + 0x502637a600000000, 0xf5f56b6d00000000, 0x4dc56e7000000000, + 0xe81632bb00000000, 0x4664a63d00000000, 0xe3b7faf600000000, + 0xad077a0400000000, 0x08d426cf00000000, 0xa6a6b24900000000, + 0x0375ee8200000000, 0xbb45eb9f00000000, 0x1e96b75400000000, + 0xb0e423d200000000, 0x15377f1900000000, 0xc08529e800000000, + 0x6556752300000000, 0xcb24e1a500000000, 0x6ef7bd6e00000000, + 0xd6c7b87300000000, 0x7314e4b800000000, 0xdd66703e00000000, + 0x78b52cf500000000, 0x6c0a580f00000000, 0xc9d904c400000000, + 0x67ab904200000000, 0xc278cc8900000000, 0x7a48c99400000000, + 0xdf9b955f00000000, 0x71e901d900000000, 0xd43a5d1200000000, + 0x01880be300000000, 0xa45b572800000000, 0x0a29c3ae00000000, + 0xaffa9f6500000000, 0x17ca9a7800000000, 0xb219c6b300000000, + 0x1c6b523500000000, 0xb9b80efe00000000, 0xf7088e0c00000000, + 0x52dbd2c700000000, 0xfca9464100000000, 0x597a1a8a00000000, + 0xe14a1f9700000000, 0x4499435c00000000, 0xeaebd7da00000000, + 0x4f388b1100000000, 0x9a8adde000000000, 0x3f59812b00000000, + 0x912b15ad00000000, 0x34f8496600000000, 0x8cc84c7b00000000, + 0x291b10b000000000, 0x8769843600000000, 0x22bad8fd00000000, + 0x5a0ff40800000000, 0xffdca8c300000000, 0x51ae3c4500000000, + 0xf47d608e00000000, 0x4c4d659300000000, 0xe99e395800000000, + 0x47ecadde00000000, 0xe23ff11500000000, 0x378da7e400000000, + 0x925efb2f00000000, 0x3c2c6fa900000000, 0x99ff336200000000, + 0x21cf367f00000000, 0x841c6ab400000000, 0x2a6efe3200000000, + 0x8fbda2f900000000, 0xc10d220b00000000, 0x64de7ec000000000, + 0xcaacea4600000000, 0x6f7fb68d00000000, 0xd74fb39000000000, + 0x729cef5b00000000, 0xdcee7bdd00000000, 0x793d271600000000, + 0xac8f71e700000000, 0x095c2d2c00000000, 0xa72eb9aa00000000, + 0x02fde56100000000, 0xbacde07c00000000, 0x1f1ebcb700000000, + 0xb16c283100000000, 0x14bf74fa00000000, 0xd814b01e00000000, + 0x7dc7ecd500000000, 0xd3b5785300000000, 0x7666249800000000, + 0xce56218500000000, 0x6b857d4e00000000, 0xc5f7e9c800000000, + 0x6024b50300000000, 0xb596e3f200000000, 0x1045bf3900000000, + 0xbe372bbf00000000, 0x1be4777400000000, 0xa3d4726900000000, + 0x06072ea200000000, 0xa875ba2400000000, 0x0da6e6ef00000000, + 0x4316661d00000000, 0xe6c53ad600000000, 0x48b7ae5000000000, + 0xed64f29b00000000, 0x5554f78600000000, 0xf087ab4d00000000, + 0x5ef53fcb00000000, 0xfb26630000000000, 0x2e9435f100000000, + 0x8b47693a00000000, 0x2535fdbc00000000, 0x80e6a17700000000, + 0x38d6a46a00000000, 0x9d05f8a100000000, 0x33776c2700000000, + 0x96a430ec00000000, 0xee111c1900000000, 0x4bc240d200000000, + 0xe5b0d45400000000, 0x4063889f00000000, 0xf8538d8200000000, + 0x5d80d14900000000, 0xf3f245cf00000000, 0x5621190400000000, + 0x83934ff500000000, 0x2640133e00000000, 0x883287b800000000, + 0x2de1db7300000000, 0x95d1de6e00000000, 0x300282a500000000, + 0x9e70162300000000, 0x3ba34ae800000000, 0x7513ca1a00000000, + 0xd0c096d100000000, 0x7eb2025700000000, 0xdb615e9c00000000, + 0x63515b8100000000, 0xc682074a00000000, 0x68f093cc00000000, + 0xcd23cf0700000000, 0x189199f600000000, 0xbd42c53d00000000, + 0x133051bb00000000, 0xb6e30d7000000000, 0x0ed3086d00000000, + 0xab0054a600000000, 0x0572c02000000000, 0xa0a19ceb00000000, + 0xb41ee81100000000, 0x11cdb4da00000000, 0xbfbf205c00000000, + 0x1a6c7c9700000000, 0xa25c798a00000000, 0x078f254100000000, + 0xa9fdb1c700000000, 0x0c2eed0c00000000, 0xd99cbbfd00000000, + 0x7c4fe73600000000, 0xd23d73b000000000, 0x77ee2f7b00000000, + 0xcfde2a6600000000, 0x6a0d76ad00000000, 0xc47fe22b00000000, + 0x61acbee000000000, 0x2f1c3e1200000000, 0x8acf62d900000000, + 0x24bdf65f00000000, 0x816eaa9400000000, 0x395eaf8900000000, + 0x9c8df34200000000, 0x32ff67c400000000, 0x972c3b0f00000000, + 0x429e6dfe00000000, 0xe74d313500000000, 0x493fa5b300000000, + 0xececf97800000000, 0x54dcfc6500000000, 0xf10fa0ae00000000, + 0x5f7d342800000000, 0xfaae68e300000000, 0x821b441600000000, + 0x27c818dd00000000, 0x89ba8c5b00000000, 0x2c69d09000000000, + 0x9459d58d00000000, 0x318a894600000000, 0x9ff81dc000000000, + 0x3a2b410b00000000, 0xef9917fa00000000, 0x4a4a4b3100000000, + 0xe438dfb700000000, 0x41eb837c00000000, 0xf9db866100000000, + 0x5c08daaa00000000, 0xf27a4e2c00000000, 0x57a912e700000000, + 0x1919921500000000, 0xbccacede00000000, 0x12b85a5800000000, + 0xb76b069300000000, 0x0f5b038e00000000, 0xaa885f4500000000, + 0x04facbc300000000, 0xa129970800000000, 0x749bc1f900000000, + 0xd1489d3200000000, 0x7f3a09b400000000, 0xdae9557f00000000, + 0x62d9506200000000, 0xc70a0ca900000000, 0x6978982f00000000, + 0xccabc4e400000000}, + {0x0000000000000000, 0xb40b77a600000000, 0x29119f9700000000, + 0x9d1ae83100000000, 0x13244ff400000000, 0xa72f385200000000, + 0x3a35d06300000000, 0x8e3ea7c500000000, 0x674eef3300000000, + 0xd345989500000000, 0x4e5f70a400000000, 0xfa54070200000000, + 0x746aa0c700000000, 0xc061d76100000000, 0x5d7b3f5000000000, + 0xe97048f600000000, 0xce9cde6700000000, 0x7a97a9c100000000, + 0xe78d41f000000000, 0x5386365600000000, 0xddb8919300000000, + 0x69b3e63500000000, 0xf4a90e0400000000, 0x40a279a200000000, + 0xa9d2315400000000, 0x1dd946f200000000, 0x80c3aec300000000, + 0x34c8d96500000000, 0xbaf67ea000000000, 0x0efd090600000000, + 0x93e7e13700000000, 0x27ec969100000000, 0x9c39bdcf00000000, + 0x2832ca6900000000, 0xb528225800000000, 0x012355fe00000000, + 0x8f1df23b00000000, 0x3b16859d00000000, 0xa60c6dac00000000, + 0x12071a0a00000000, 0xfb7752fc00000000, 0x4f7c255a00000000, + 0xd266cd6b00000000, 0x666dbacd00000000, 0xe8531d0800000000, + 0x5c586aae00000000, 0xc142829f00000000, 0x7549f53900000000, + 0x52a563a800000000, 0xe6ae140e00000000, 0x7bb4fc3f00000000, + 0xcfbf8b9900000000, 0x41812c5c00000000, 0xf58a5bfa00000000, + 0x6890b3cb00000000, 0xdc9bc46d00000000, 0x35eb8c9b00000000, + 0x81e0fb3d00000000, 0x1cfa130c00000000, 0xa8f164aa00000000, + 0x26cfc36f00000000, 0x92c4b4c900000000, 0x0fde5cf800000000, + 0xbbd52b5e00000000, 0x79750b4400000000, 0xcd7e7ce200000000, + 0x506494d300000000, 0xe46fe37500000000, 0x6a5144b000000000, + 0xde5a331600000000, 0x4340db2700000000, 0xf74bac8100000000, + 0x1e3be47700000000, 0xaa3093d100000000, 0x372a7be000000000, + 0x83210c4600000000, 0x0d1fab8300000000, 0xb914dc2500000000, + 0x240e341400000000, 0x900543b200000000, 0xb7e9d52300000000, + 0x03e2a28500000000, 0x9ef84ab400000000, 0x2af33d1200000000, + 0xa4cd9ad700000000, 0x10c6ed7100000000, 0x8ddc054000000000, + 0x39d772e600000000, 0xd0a73a1000000000, 0x64ac4db600000000, + 0xf9b6a58700000000, 0x4dbdd22100000000, 0xc38375e400000000, + 0x7788024200000000, 0xea92ea7300000000, 0x5e999dd500000000, + 0xe54cb68b00000000, 0x5147c12d00000000, 0xcc5d291c00000000, + 0x78565eba00000000, 0xf668f97f00000000, 0x42638ed900000000, + 0xdf7966e800000000, 0x6b72114e00000000, 0x820259b800000000, + 0x36092e1e00000000, 0xab13c62f00000000, 0x1f18b18900000000, + 0x9126164c00000000, 0x252d61ea00000000, 0xb83789db00000000, + 0x0c3cfe7d00000000, 0x2bd068ec00000000, 0x9fdb1f4a00000000, + 0x02c1f77b00000000, 0xb6ca80dd00000000, 0x38f4271800000000, + 0x8cff50be00000000, 0x11e5b88f00000000, 0xa5eecf2900000000, + 0x4c9e87df00000000, 0xf895f07900000000, 0x658f184800000000, + 0xd1846fee00000000, 0x5fbac82b00000000, 0xebb1bf8d00000000, + 0x76ab57bc00000000, 0xc2a0201a00000000, 0xf2ea168800000000, + 0x46e1612e00000000, 0xdbfb891f00000000, 0x6ff0feb900000000, + 0xe1ce597c00000000, 0x55c52eda00000000, 0xc8dfc6eb00000000, + 0x7cd4b14d00000000, 0x95a4f9bb00000000, 0x21af8e1d00000000, + 0xbcb5662c00000000, 0x08be118a00000000, 0x8680b64f00000000, + 0x328bc1e900000000, 0xaf9129d800000000, 0x1b9a5e7e00000000, + 0x3c76c8ef00000000, 0x887dbf4900000000, 0x1567577800000000, + 0xa16c20de00000000, 0x2f52871b00000000, 0x9b59f0bd00000000, + 0x0643188c00000000, 0xb2486f2a00000000, 0x5b3827dc00000000, + 0xef33507a00000000, 0x7229b84b00000000, 0xc622cfed00000000, + 0x481c682800000000, 0xfc171f8e00000000, 0x610df7bf00000000, + 0xd506801900000000, 0x6ed3ab4700000000, 0xdad8dce100000000, + 0x47c234d000000000, 0xf3c9437600000000, 0x7df7e4b300000000, + 0xc9fc931500000000, 0x54e67b2400000000, 0xe0ed0c8200000000, + 0x099d447400000000, 0xbd9633d200000000, 0x208cdbe300000000, + 0x9487ac4500000000, 0x1ab90b8000000000, 0xaeb27c2600000000, + 0x33a8941700000000, 0x87a3e3b100000000, 0xa04f752000000000, + 0x1444028600000000, 0x895eeab700000000, 0x3d559d1100000000, + 0xb36b3ad400000000, 0x07604d7200000000, 0x9a7aa54300000000, + 0x2e71d2e500000000, 0xc7019a1300000000, 0x730aedb500000000, + 0xee10058400000000, 0x5a1b722200000000, 0xd425d5e700000000, + 0x602ea24100000000, 0xfd344a7000000000, 0x493f3dd600000000, + 0x8b9f1dcc00000000, 0x3f946a6a00000000, 0xa28e825b00000000, + 0x1685f5fd00000000, 0x98bb523800000000, 0x2cb0259e00000000, + 0xb1aacdaf00000000, 0x05a1ba0900000000, 0xecd1f2ff00000000, + 0x58da855900000000, 0xc5c06d6800000000, 0x71cb1ace00000000, + 0xfff5bd0b00000000, 0x4bfecaad00000000, 0xd6e4229c00000000, + 0x62ef553a00000000, 0x4503c3ab00000000, 0xf108b40d00000000, + 0x6c125c3c00000000, 0xd8192b9a00000000, 0x56278c5f00000000, + 0xe22cfbf900000000, 0x7f3613c800000000, 0xcb3d646e00000000, + 0x224d2c9800000000, 0x96465b3e00000000, 0x0b5cb30f00000000, + 0xbf57c4a900000000, 0x3169636c00000000, 0x856214ca00000000, + 0x1878fcfb00000000, 0xac738b5d00000000, 0x17a6a00300000000, + 0xa3add7a500000000, 0x3eb73f9400000000, 0x8abc483200000000, + 0x0482eff700000000, 0xb089985100000000, 0x2d93706000000000, + 0x999807c600000000, 0x70e84f3000000000, 0xc4e3389600000000, + 0x59f9d0a700000000, 0xedf2a70100000000, 0x63cc00c400000000, + 0xd7c7776200000000, 0x4add9f5300000000, 0xfed6e8f500000000, + 0xd93a7e6400000000, 0x6d3109c200000000, 0xf02be1f300000000, + 0x4420965500000000, 0xca1e319000000000, 0x7e15463600000000, + 0xe30fae0700000000, 0x5704d9a100000000, 0xbe74915700000000, + 0x0a7fe6f100000000, 0x97650ec000000000, 0x236e796600000000, + 0xad50dea300000000, 0x195ba90500000000, 0x8441413400000000, + 0x304a369200000000}, + {0x0000000000000000, 0x9e00aacc00000000, 0x7d07254200000000, + 0xe3078f8e00000000, 0xfa0e4a8400000000, 0x640ee04800000000, + 0x87096fc600000000, 0x1909c50a00000000, 0xb51be5d300000000, + 0x2b1b4f1f00000000, 0xc81cc09100000000, 0x561c6a5d00000000, + 0x4f15af5700000000, 0xd115059b00000000, 0x32128a1500000000, + 0xac1220d900000000, 0x2b31bb7c00000000, 0xb53111b000000000, + 0x56369e3e00000000, 0xc83634f200000000, 0xd13ff1f800000000, + 0x4f3f5b3400000000, 0xac38d4ba00000000, 0x32387e7600000000, + 0x9e2a5eaf00000000, 0x002af46300000000, 0xe32d7bed00000000, + 0x7d2dd12100000000, 0x6424142b00000000, 0xfa24bee700000000, + 0x1923316900000000, 0x87239ba500000000, 0x566276f900000000, + 0xc862dc3500000000, 0x2b6553bb00000000, 0xb565f97700000000, + 0xac6c3c7d00000000, 0x326c96b100000000, 0xd16b193f00000000, + 0x4f6bb3f300000000, 0xe379932a00000000, 0x7d7939e600000000, + 0x9e7eb66800000000, 0x007e1ca400000000, 0x1977d9ae00000000, + 0x8777736200000000, 0x6470fcec00000000, 0xfa70562000000000, + 0x7d53cd8500000000, 0xe353674900000000, 0x0054e8c700000000, + 0x9e54420b00000000, 0x875d870100000000, 0x195d2dcd00000000, + 0xfa5aa24300000000, 0x645a088f00000000, 0xc848285600000000, + 0x5648829a00000000, 0xb54f0d1400000000, 0x2b4fa7d800000000, + 0x324662d200000000, 0xac46c81e00000000, 0x4f41479000000000, + 0xd141ed5c00000000, 0xedc29d2900000000, 0x73c237e500000000, + 0x90c5b86b00000000, 0x0ec512a700000000, 0x17ccd7ad00000000, + 0x89cc7d6100000000, 0x6acbf2ef00000000, 0xf4cb582300000000, + 0x58d978fa00000000, 0xc6d9d23600000000, 0x25de5db800000000, + 0xbbdef77400000000, 0xa2d7327e00000000, 0x3cd798b200000000, + 0xdfd0173c00000000, 0x41d0bdf000000000, 0xc6f3265500000000, + 0x58f38c9900000000, 0xbbf4031700000000, 0x25f4a9db00000000, + 0x3cfd6cd100000000, 0xa2fdc61d00000000, 0x41fa499300000000, + 0xdffae35f00000000, 0x73e8c38600000000, 0xede8694a00000000, + 0x0eefe6c400000000, 0x90ef4c0800000000, 0x89e6890200000000, + 0x17e623ce00000000, 0xf4e1ac4000000000, 0x6ae1068c00000000, + 0xbba0ebd000000000, 0x25a0411c00000000, 0xc6a7ce9200000000, + 0x58a7645e00000000, 0x41aea15400000000, 0xdfae0b9800000000, + 0x3ca9841600000000, 0xa2a92eda00000000, 0x0ebb0e0300000000, + 0x90bba4cf00000000, 0x73bc2b4100000000, 0xedbc818d00000000, + 0xf4b5448700000000, 0x6ab5ee4b00000000, 0x89b261c500000000, + 0x17b2cb0900000000, 0x909150ac00000000, 0x0e91fa6000000000, + 0xed9675ee00000000, 0x7396df2200000000, 0x6a9f1a2800000000, + 0xf49fb0e400000000, 0x17983f6a00000000, 0x899895a600000000, + 0x258ab57f00000000, 0xbb8a1fb300000000, 0x588d903d00000000, + 0xc68d3af100000000, 0xdf84fffb00000000, 0x4184553700000000, + 0xa283dab900000000, 0x3c83707500000000, 0xda853b5300000000, + 0x4485919f00000000, 0xa7821e1100000000, 0x3982b4dd00000000, + 0x208b71d700000000, 0xbe8bdb1b00000000, 0x5d8c549500000000, + 0xc38cfe5900000000, 0x6f9ede8000000000, 0xf19e744c00000000, + 0x1299fbc200000000, 0x8c99510e00000000, 0x9590940400000000, + 0x0b903ec800000000, 0xe897b14600000000, 0x76971b8a00000000, + 0xf1b4802f00000000, 0x6fb42ae300000000, 0x8cb3a56d00000000, + 0x12b30fa100000000, 0x0bbacaab00000000, 0x95ba606700000000, + 0x76bdefe900000000, 0xe8bd452500000000, 0x44af65fc00000000, + 0xdaafcf3000000000, 0x39a840be00000000, 0xa7a8ea7200000000, + 0xbea12f7800000000, 0x20a185b400000000, 0xc3a60a3a00000000, + 0x5da6a0f600000000, 0x8ce74daa00000000, 0x12e7e76600000000, + 0xf1e068e800000000, 0x6fe0c22400000000, 0x76e9072e00000000, + 0xe8e9ade200000000, 0x0bee226c00000000, 0x95ee88a000000000, + 0x39fca87900000000, 0xa7fc02b500000000, 0x44fb8d3b00000000, + 0xdafb27f700000000, 0xc3f2e2fd00000000, 0x5df2483100000000, + 0xbef5c7bf00000000, 0x20f56d7300000000, 0xa7d6f6d600000000, + 0x39d65c1a00000000, 0xdad1d39400000000, 0x44d1795800000000, + 0x5dd8bc5200000000, 0xc3d8169e00000000, 0x20df991000000000, + 0xbedf33dc00000000, 0x12cd130500000000, 0x8ccdb9c900000000, + 0x6fca364700000000, 0xf1ca9c8b00000000, 0xe8c3598100000000, + 0x76c3f34d00000000, 0x95c47cc300000000, 0x0bc4d60f00000000, + 0x3747a67a00000000, 0xa9470cb600000000, 0x4a40833800000000, + 0xd44029f400000000, 0xcd49ecfe00000000, 0x5349463200000000, + 0xb04ec9bc00000000, 0x2e4e637000000000, 0x825c43a900000000, + 0x1c5ce96500000000, 0xff5b66eb00000000, 0x615bcc2700000000, + 0x7852092d00000000, 0xe652a3e100000000, 0x05552c6f00000000, + 0x9b5586a300000000, 0x1c761d0600000000, 0x8276b7ca00000000, + 0x6171384400000000, 0xff71928800000000, 0xe678578200000000, + 0x7878fd4e00000000, 0x9b7f72c000000000, 0x057fd80c00000000, + 0xa96df8d500000000, 0x376d521900000000, 0xd46add9700000000, + 0x4a6a775b00000000, 0x5363b25100000000, 0xcd63189d00000000, + 0x2e64971300000000, 0xb0643ddf00000000, 0x6125d08300000000, + 0xff257a4f00000000, 0x1c22f5c100000000, 0x82225f0d00000000, + 0x9b2b9a0700000000, 0x052b30cb00000000, 0xe62cbf4500000000, + 0x782c158900000000, 0xd43e355000000000, 0x4a3e9f9c00000000, + 0xa939101200000000, 0x3739bade00000000, 0x2e307fd400000000, + 0xb030d51800000000, 0x53375a9600000000, 0xcd37f05a00000000, + 0x4a146bff00000000, 0xd414c13300000000, 0x37134ebd00000000, + 0xa913e47100000000, 0xb01a217b00000000, 0x2e1a8bb700000000, + 0xcd1d043900000000, 0x531daef500000000, 0xff0f8e2c00000000, + 0x610f24e000000000, 0x8208ab6e00000000, 0x1c0801a200000000, + 0x0501c4a800000000, 0x9b016e6400000000, 0x7806e1ea00000000, + 0xe6064b2600000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xb8bc6765, 0xaa09c88b, 0x12b5afee, 0x8f629757, + 0x37def032, 0x256b5fdc, 0x9dd738b9, 0xc5b428ef, 0x7d084f8a, + 0x6fbde064, 0xd7018701, 0x4ad6bfb8, 0xf26ad8dd, 0xe0df7733, + 0x58631056, 0x5019579f, 0xe8a530fa, 0xfa109f14, 0x42acf871, + 0xdf7bc0c8, 0x67c7a7ad, 0x75720843, 0xcdce6f26, 0x95ad7f70, + 0x2d111815, 0x3fa4b7fb, 0x8718d09e, 0x1acfe827, 0xa2738f42, + 0xb0c620ac, 0x087a47c9, 0xa032af3e, 0x188ec85b, 0x0a3b67b5, + 0xb28700d0, 0x2f503869, 0x97ec5f0c, 0x8559f0e2, 0x3de59787, + 0x658687d1, 0xdd3ae0b4, 0xcf8f4f5a, 0x7733283f, 0xeae41086, + 0x525877e3, 0x40edd80d, 0xf851bf68, 0xf02bf8a1, 0x48979fc4, + 0x5a22302a, 0xe29e574f, 0x7f496ff6, 0xc7f50893, 0xd540a77d, + 0x6dfcc018, 0x359fd04e, 0x8d23b72b, 0x9f9618c5, 0x272a7fa0, + 0xbafd4719, 0x0241207c, 0x10f48f92, 0xa848e8f7, 0x9b14583d, + 0x23a83f58, 0x311d90b6, 0x89a1f7d3, 0x1476cf6a, 0xaccaa80f, + 0xbe7f07e1, 0x06c36084, 0x5ea070d2, 0xe61c17b7, 0xf4a9b859, + 0x4c15df3c, 0xd1c2e785, 0x697e80e0, 0x7bcb2f0e, 0xc377486b, + 0xcb0d0fa2, 0x73b168c7, 0x6104c729, 0xd9b8a04c, 0x446f98f5, + 0xfcd3ff90, 0xee66507e, 0x56da371b, 0x0eb9274d, 0xb6054028, + 0xa4b0efc6, 0x1c0c88a3, 0x81dbb01a, 0x3967d77f, 0x2bd27891, + 0x936e1ff4, 0x3b26f703, 0x839a9066, 0x912f3f88, 0x299358ed, + 0xb4446054, 0x0cf80731, 0x1e4da8df, 0xa6f1cfba, 0xfe92dfec, + 0x462eb889, 0x549b1767, 0xec277002, 0x71f048bb, 0xc94c2fde, + 0xdbf98030, 0x6345e755, 0x6b3fa09c, 0xd383c7f9, 0xc1366817, + 0x798a0f72, 0xe45d37cb, 0x5ce150ae, 0x4e54ff40, 0xf6e89825, + 0xae8b8873, 0x1637ef16, 0x048240f8, 0xbc3e279d, 0x21e91f24, + 0x99557841, 0x8be0d7af, 0x335cb0ca, 0xed59b63b, 0x55e5d15e, + 0x47507eb0, 0xffec19d5, 0x623b216c, 0xda874609, 0xc832e9e7, + 0x708e8e82, 0x28ed9ed4, 0x9051f9b1, 0x82e4565f, 0x3a58313a, + 0xa78f0983, 0x1f336ee6, 0x0d86c108, 0xb53aa66d, 0xbd40e1a4, + 0x05fc86c1, 0x1749292f, 0xaff54e4a, 0x322276f3, 0x8a9e1196, + 0x982bbe78, 0x2097d91d, 0x78f4c94b, 0xc048ae2e, 0xd2fd01c0, + 0x6a4166a5, 0xf7965e1c, 0x4f2a3979, 0x5d9f9697, 0xe523f1f2, + 0x4d6b1905, 0xf5d77e60, 0xe762d18e, 0x5fdeb6eb, 0xc2098e52, + 0x7ab5e937, 0x680046d9, 0xd0bc21bc, 0x88df31ea, 0x3063568f, + 0x22d6f961, 0x9a6a9e04, 0x07bda6bd, 0xbf01c1d8, 0xadb46e36, + 0x15080953, 0x1d724e9a, 0xa5ce29ff, 0xb77b8611, 0x0fc7e174, + 0x9210d9cd, 0x2aacbea8, 0x38191146, 0x80a57623, 0xd8c66675, + 0x607a0110, 0x72cfaefe, 0xca73c99b, 0x57a4f122, 0xef189647, + 0xfdad39a9, 0x45115ecc, 0x764dee06, 0xcef18963, 0xdc44268d, + 0x64f841e8, 0xf92f7951, 0x41931e34, 0x5326b1da, 0xeb9ad6bf, + 0xb3f9c6e9, 0x0b45a18c, 0x19f00e62, 0xa14c6907, 0x3c9b51be, + 0x842736db, 0x96929935, 0x2e2efe50, 0x2654b999, 0x9ee8defc, + 0x8c5d7112, 0x34e11677, 0xa9362ece, 0x118a49ab, 0x033fe645, + 0xbb838120, 0xe3e09176, 0x5b5cf613, 0x49e959fd, 0xf1553e98, + 0x6c820621, 0xd43e6144, 0xc68bceaa, 0x7e37a9cf, 0xd67f4138, + 0x6ec3265d, 0x7c7689b3, 0xc4caeed6, 0x591dd66f, 0xe1a1b10a, + 0xf3141ee4, 0x4ba87981, 0x13cb69d7, 0xab770eb2, 0xb9c2a15c, + 0x017ec639, 0x9ca9fe80, 0x241599e5, 0x36a0360b, 0x8e1c516e, + 0x866616a7, 0x3eda71c2, 0x2c6fde2c, 0x94d3b949, 0x090481f0, + 0xb1b8e695, 0xa30d497b, 0x1bb12e1e, 0x43d23e48, 0xfb6e592d, + 0xe9dbf6c3, 0x516791a6, 0xccb0a91f, 0x740cce7a, 0x66b96194, + 0xde0506f1}, + {0x00000000, 0x01c26a37, 0x0384d46e, 0x0246be59, 0x0709a8dc, + 0x06cbc2eb, 0x048d7cb2, 0x054f1685, 0x0e1351b8, 0x0fd13b8f, + 0x0d9785d6, 0x0c55efe1, 0x091af964, 0x08d89353, 0x0a9e2d0a, + 0x0b5c473d, 0x1c26a370, 0x1de4c947, 0x1fa2771e, 0x1e601d29, + 0x1b2f0bac, 0x1aed619b, 0x18abdfc2, 0x1969b5f5, 0x1235f2c8, + 0x13f798ff, 0x11b126a6, 0x10734c91, 0x153c5a14, 0x14fe3023, + 0x16b88e7a, 0x177ae44d, 0x384d46e0, 0x398f2cd7, 0x3bc9928e, + 0x3a0bf8b9, 0x3f44ee3c, 0x3e86840b, 0x3cc03a52, 0x3d025065, + 0x365e1758, 0x379c7d6f, 0x35dac336, 0x3418a901, 0x3157bf84, + 0x3095d5b3, 0x32d36bea, 0x331101dd, 0x246be590, 0x25a98fa7, + 0x27ef31fe, 0x262d5bc9, 0x23624d4c, 0x22a0277b, 0x20e69922, + 0x2124f315, 0x2a78b428, 0x2bbade1f, 0x29fc6046, 0x283e0a71, + 0x2d711cf4, 0x2cb376c3, 0x2ef5c89a, 0x2f37a2ad, 0x709a8dc0, + 0x7158e7f7, 0x731e59ae, 0x72dc3399, 0x7793251c, 0x76514f2b, + 0x7417f172, 0x75d59b45, 0x7e89dc78, 0x7f4bb64f, 0x7d0d0816, + 0x7ccf6221, 0x798074a4, 0x78421e93, 0x7a04a0ca, 0x7bc6cafd, + 0x6cbc2eb0, 0x6d7e4487, 0x6f38fade, 0x6efa90e9, 0x6bb5866c, + 0x6a77ec5b, 0x68315202, 0x69f33835, 0x62af7f08, 0x636d153f, + 0x612bab66, 0x60e9c151, 0x65a6d7d4, 0x6464bde3, 0x662203ba, + 0x67e0698d, 0x48d7cb20, 0x4915a117, 0x4b531f4e, 0x4a917579, + 0x4fde63fc, 0x4e1c09cb, 0x4c5ab792, 0x4d98dda5, 0x46c49a98, + 0x4706f0af, 0x45404ef6, 0x448224c1, 0x41cd3244, 0x400f5873, + 0x4249e62a, 0x438b8c1d, 0x54f16850, 0x55330267, 0x5775bc3e, + 0x56b7d609, 0x53f8c08c, 0x523aaabb, 0x507c14e2, 0x51be7ed5, + 0x5ae239e8, 0x5b2053df, 0x5966ed86, 0x58a487b1, 0x5deb9134, + 0x5c29fb03, 0x5e6f455a, 0x5fad2f6d, 0xe1351b80, 0xe0f771b7, + 0xe2b1cfee, 0xe373a5d9, 0xe63cb35c, 0xe7fed96b, 0xe5b86732, + 0xe47a0d05, 0xef264a38, 0xeee4200f, 0xeca29e56, 0xed60f461, + 0xe82fe2e4, 0xe9ed88d3, 0xebab368a, 0xea695cbd, 0xfd13b8f0, + 0xfcd1d2c7, 0xfe976c9e, 0xff5506a9, 0xfa1a102c, 0xfbd87a1b, + 0xf99ec442, 0xf85cae75, 0xf300e948, 0xf2c2837f, 0xf0843d26, + 0xf1465711, 0xf4094194, 0xf5cb2ba3, 0xf78d95fa, 0xf64fffcd, + 0xd9785d60, 0xd8ba3757, 0xdafc890e, 0xdb3ee339, 0xde71f5bc, + 0xdfb39f8b, 0xddf521d2, 0xdc374be5, 0xd76b0cd8, 0xd6a966ef, + 0xd4efd8b6, 0xd52db281, 0xd062a404, 0xd1a0ce33, 0xd3e6706a, + 0xd2241a5d, 0xc55efe10, 0xc49c9427, 0xc6da2a7e, 0xc7184049, + 0xc25756cc, 0xc3953cfb, 0xc1d382a2, 0xc011e895, 0xcb4dafa8, + 0xca8fc59f, 0xc8c97bc6, 0xc90b11f1, 0xcc440774, 0xcd866d43, + 0xcfc0d31a, 0xce02b92d, 0x91af9640, 0x906dfc77, 0x922b422e, + 0x93e92819, 0x96a63e9c, 0x976454ab, 0x9522eaf2, 0x94e080c5, + 0x9fbcc7f8, 0x9e7eadcf, 0x9c381396, 0x9dfa79a1, 0x98b56f24, + 0x99770513, 0x9b31bb4a, 0x9af3d17d, 0x8d893530, 0x8c4b5f07, + 0x8e0de15e, 0x8fcf8b69, 0x8a809dec, 0x8b42f7db, 0x89044982, + 0x88c623b5, 0x839a6488, 0x82580ebf, 0x801eb0e6, 0x81dcdad1, + 0x8493cc54, 0x8551a663, 0x8717183a, 0x86d5720d, 0xa9e2d0a0, + 0xa820ba97, 0xaa6604ce, 0xaba46ef9, 0xaeeb787c, 0xaf29124b, + 0xad6fac12, 0xacadc625, 0xa7f18118, 0xa633eb2f, 0xa4755576, + 0xa5b73f41, 0xa0f829c4, 0xa13a43f3, 0xa37cfdaa, 0xa2be979d, + 0xb5c473d0, 0xb40619e7, 0xb640a7be, 0xb782cd89, 0xb2cddb0c, + 0xb30fb13b, 0xb1490f62, 0xb08b6555, 0xbbd72268, 0xba15485f, + 0xb853f606, 0xb9919c31, 0xbcde8ab4, 0xbd1ce083, 0xbf5a5eda, + 0xbe9834ed}, + {0x00000000, 0x191b3141, 0x32366282, 0x2b2d53c3, 0x646cc504, + 0x7d77f445, 0x565aa786, 0x4f4196c7, 0xc8d98a08, 0xd1c2bb49, + 0xfaefe88a, 0xe3f4d9cb, 0xacb54f0c, 0xb5ae7e4d, 0x9e832d8e, + 0x87981ccf, 0x4ac21251, 0x53d92310, 0x78f470d3, 0x61ef4192, + 0x2eaed755, 0x37b5e614, 0x1c98b5d7, 0x05838496, 0x821b9859, + 0x9b00a918, 0xb02dfadb, 0xa936cb9a, 0xe6775d5d, 0xff6c6c1c, + 0xd4413fdf, 0xcd5a0e9e, 0x958424a2, 0x8c9f15e3, 0xa7b24620, + 0xbea97761, 0xf1e8e1a6, 0xe8f3d0e7, 0xc3de8324, 0xdac5b265, + 0x5d5daeaa, 0x44469feb, 0x6f6bcc28, 0x7670fd69, 0x39316bae, + 0x202a5aef, 0x0b07092c, 0x121c386d, 0xdf4636f3, 0xc65d07b2, + 0xed705471, 0xf46b6530, 0xbb2af3f7, 0xa231c2b6, 0x891c9175, + 0x9007a034, 0x179fbcfb, 0x0e848dba, 0x25a9de79, 0x3cb2ef38, + 0x73f379ff, 0x6ae848be, 0x41c51b7d, 0x58de2a3c, 0xf0794f05, + 0xe9627e44, 0xc24f2d87, 0xdb541cc6, 0x94158a01, 0x8d0ebb40, + 0xa623e883, 0xbf38d9c2, 0x38a0c50d, 0x21bbf44c, 0x0a96a78f, + 0x138d96ce, 0x5ccc0009, 0x45d73148, 0x6efa628b, 0x77e153ca, + 0xbabb5d54, 0xa3a06c15, 0x888d3fd6, 0x91960e97, 0xded79850, + 0xc7cca911, 0xece1fad2, 0xf5facb93, 0x7262d75c, 0x6b79e61d, + 0x4054b5de, 0x594f849f, 0x160e1258, 0x0f152319, 0x243870da, + 0x3d23419b, 0x65fd6ba7, 0x7ce65ae6, 0x57cb0925, 0x4ed03864, + 0x0191aea3, 0x188a9fe2, 0x33a7cc21, 0x2abcfd60, 0xad24e1af, + 0xb43fd0ee, 0x9f12832d, 0x8609b26c, 0xc94824ab, 0xd05315ea, + 0xfb7e4629, 0xe2657768, 0x2f3f79f6, 0x362448b7, 0x1d091b74, + 0x04122a35, 0x4b53bcf2, 0x52488db3, 0x7965de70, 0x607eef31, + 0xe7e6f3fe, 0xfefdc2bf, 0xd5d0917c, 0xcccba03d, 0x838a36fa, + 0x9a9107bb, 0xb1bc5478, 0xa8a76539, 0x3b83984b, 0x2298a90a, + 0x09b5fac9, 0x10aecb88, 0x5fef5d4f, 0x46f46c0e, 0x6dd93fcd, + 0x74c20e8c, 0xf35a1243, 0xea412302, 0xc16c70c1, 0xd8774180, + 0x9736d747, 0x8e2de606, 0xa500b5c5, 0xbc1b8484, 0x71418a1a, + 0x685abb5b, 0x4377e898, 0x5a6cd9d9, 0x152d4f1e, 0x0c367e5f, + 0x271b2d9c, 0x3e001cdd, 0xb9980012, 0xa0833153, 0x8bae6290, + 0x92b553d1, 0xddf4c516, 0xc4eff457, 0xefc2a794, 0xf6d996d5, + 0xae07bce9, 0xb71c8da8, 0x9c31de6b, 0x852aef2a, 0xca6b79ed, + 0xd37048ac, 0xf85d1b6f, 0xe1462a2e, 0x66de36e1, 0x7fc507a0, + 0x54e85463, 0x4df36522, 0x02b2f3e5, 0x1ba9c2a4, 0x30849167, + 0x299fa026, 0xe4c5aeb8, 0xfdde9ff9, 0xd6f3cc3a, 0xcfe8fd7b, + 0x80a96bbc, 0x99b25afd, 0xb29f093e, 0xab84387f, 0x2c1c24b0, + 0x350715f1, 0x1e2a4632, 0x07317773, 0x4870e1b4, 0x516bd0f5, + 0x7a468336, 0x635db277, 0xcbfad74e, 0xd2e1e60f, 0xf9ccb5cc, + 0xe0d7848d, 0xaf96124a, 0xb68d230b, 0x9da070c8, 0x84bb4189, + 0x03235d46, 0x1a386c07, 0x31153fc4, 0x280e0e85, 0x674f9842, + 0x7e54a903, 0x5579fac0, 0x4c62cb81, 0x8138c51f, 0x9823f45e, + 0xb30ea79d, 0xaa1596dc, 0xe554001b, 0xfc4f315a, 0xd7626299, + 0xce7953d8, 0x49e14f17, 0x50fa7e56, 0x7bd72d95, 0x62cc1cd4, + 0x2d8d8a13, 0x3496bb52, 0x1fbbe891, 0x06a0d9d0, 0x5e7ef3ec, + 0x4765c2ad, 0x6c48916e, 0x7553a02f, 0x3a1236e8, 0x230907a9, + 0x0824546a, 0x113f652b, 0x96a779e4, 0x8fbc48a5, 0xa4911b66, + 0xbd8a2a27, 0xf2cbbce0, 0xebd08da1, 0xc0fdde62, 0xd9e6ef23, + 0x14bce1bd, 0x0da7d0fc, 0x268a833f, 0x3f91b27e, 0x70d024b9, + 0x69cb15f8, 0x42e6463b, 0x5bfd777a, 0xdc656bb5, 0xc57e5af4, + 0xee530937, 0xf7483876, 0xb809aeb1, 0xa1129ff0, 0x8a3fcc33, + 0x9324fd72}, + {0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, + 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, + 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, + 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, + 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, + 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, + 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, + 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, + 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, + 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, + 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, + 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, + 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, + 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, + 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, + 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, + 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, + 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, + 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, + 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, + 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, + 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, + 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, + 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, + 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, + 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, + 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, + 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, + 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, + 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, + 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, + 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, + 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, + 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, + 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, + 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, + 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, + 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, + 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, + 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, + 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, + 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, + 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, + 0x2d02ef8d}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0x96300777, 0x2c610eee, 0xba510999, 0x19c46d07, + 0x8ff46a70, 0x35a563e9, 0xa395649e, 0x3288db0e, 0xa4b8dc79, + 0x1ee9d5e0, 0x88d9d297, 0x2b4cb609, 0xbd7cb17e, 0x072db8e7, + 0x911dbf90, 0x6410b71d, 0xf220b06a, 0x4871b9f3, 0xde41be84, + 0x7dd4da1a, 0xebe4dd6d, 0x51b5d4f4, 0xc785d383, 0x56986c13, + 0xc0a86b64, 0x7af962fd, 0xecc9658a, 0x4f5c0114, 0xd96c0663, + 0x633d0ffa, 0xf50d088d, 0xc8206e3b, 0x5e10694c, 0xe44160d5, + 0x727167a2, 0xd1e4033c, 0x47d4044b, 0xfd850dd2, 0x6bb50aa5, + 0xfaa8b535, 0x6c98b242, 0xd6c9bbdb, 0x40f9bcac, 0xe36cd832, + 0x755cdf45, 0xcf0dd6dc, 0x593dd1ab, 0xac30d926, 0x3a00de51, + 0x8051d7c8, 0x1661d0bf, 0xb5f4b421, 0x23c4b356, 0x9995bacf, + 0x0fa5bdb8, 0x9eb80228, 0x0888055f, 0xb2d90cc6, 0x24e90bb1, + 0x877c6f2f, 0x114c6858, 0xab1d61c1, 0x3d2d66b6, 0x9041dc76, + 0x0671db01, 0xbc20d298, 0x2a10d5ef, 0x8985b171, 0x1fb5b606, + 0xa5e4bf9f, 0x33d4b8e8, 0xa2c90778, 0x34f9000f, 0x8ea80996, + 0x18980ee1, 0xbb0d6a7f, 0x2d3d6d08, 0x976c6491, 0x015c63e6, + 0xf4516b6b, 0x62616c1c, 0xd8306585, 0x4e0062f2, 0xed95066c, + 0x7ba5011b, 0xc1f40882, 0x57c40ff5, 0xc6d9b065, 0x50e9b712, + 0xeab8be8b, 0x7c88b9fc, 0xdf1ddd62, 0x492dda15, 0xf37cd38c, + 0x654cd4fb, 0x5861b24d, 0xce51b53a, 0x7400bca3, 0xe230bbd4, + 0x41a5df4a, 0xd795d83d, 0x6dc4d1a4, 0xfbf4d6d3, 0x6ae96943, + 0xfcd96e34, 0x468867ad, 0xd0b860da, 0x732d0444, 0xe51d0333, + 0x5f4c0aaa, 0xc97c0ddd, 0x3c710550, 0xaa410227, 0x10100bbe, + 0x86200cc9, 0x25b56857, 0xb3856f20, 0x09d466b9, 0x9fe461ce, + 0x0ef9de5e, 0x98c9d929, 0x2298d0b0, 0xb4a8d7c7, 0x173db359, + 0x810db42e, 0x3b5cbdb7, 0xad6cbac0, 0x2083b8ed, 0xb6b3bf9a, + 0x0ce2b603, 0x9ad2b174, 0x3947d5ea, 0xaf77d29d, 0x1526db04, + 0x8316dc73, 0x120b63e3, 0x843b6494, 0x3e6a6d0d, 0xa85a6a7a, + 0x0bcf0ee4, 0x9dff0993, 0x27ae000a, 0xb19e077d, 0x44930ff0, + 0xd2a30887, 0x68f2011e, 0xfec20669, 0x5d5762f7, 0xcb676580, + 0x71366c19, 0xe7066b6e, 0x761bd4fe, 0xe02bd389, 0x5a7ada10, + 0xcc4add67, 0x6fdfb9f9, 0xf9efbe8e, 0x43beb717, 0xd58eb060, + 0xe8a3d6d6, 0x7e93d1a1, 0xc4c2d838, 0x52f2df4f, 0xf167bbd1, + 0x6757bca6, 0xdd06b53f, 0x4b36b248, 0xda2b0dd8, 0x4c1b0aaf, + 0xf64a0336, 0x607a0441, 0xc3ef60df, 0x55df67a8, 0xef8e6e31, + 0x79be6946, 0x8cb361cb, 0x1a8366bc, 0xa0d26f25, 0x36e26852, + 0x95770ccc, 0x03470bbb, 0xb9160222, 0x2f260555, 0xbe3bbac5, + 0x280bbdb2, 0x925ab42b, 0x046ab35c, 0xa7ffd7c2, 0x31cfd0b5, + 0x8b9ed92c, 0x1daede5b, 0xb0c2649b, 0x26f263ec, 0x9ca36a75, + 0x0a936d02, 0xa906099c, 0x3f360eeb, 0x85670772, 0x13570005, + 0x824abf95, 0x147ab8e2, 0xae2bb17b, 0x381bb60c, 0x9b8ed292, + 0x0dbed5e5, 0xb7efdc7c, 0x21dfdb0b, 0xd4d2d386, 0x42e2d4f1, + 0xf8b3dd68, 0x6e83da1f, 0xcd16be81, 0x5b26b9f6, 0xe177b06f, + 0x7747b718, 0xe65a0888, 0x706a0fff, 0xca3b0666, 0x5c0b0111, + 0xff9e658f, 0x69ae62f8, 0xd3ff6b61, 0x45cf6c16, 0x78e20aa0, + 0xeed20dd7, 0x5483044e, 0xc2b30339, 0x612667a7, 0xf71660d0, + 0x4d476949, 0xdb776e3e, 0x4a6ad1ae, 0xdc5ad6d9, 0x660bdf40, + 0xf03bd837, 0x53aebca9, 0xc59ebbde, 0x7fcfb247, 0xe9ffb530, + 0x1cf2bdbd, 0x8ac2baca, 0x3093b353, 0xa6a3b424, 0x0536d0ba, + 0x9306d7cd, 0x2957de54, 0xbf67d923, 0x2e7a66b3, 0xb84a61c4, + 0x021b685d, 0x942b6f2a, 0x37be0bb4, 0xa18e0cc3, 0x1bdf055a, + 0x8def022d}, + {0x00000000, 0x41311b19, 0x82623632, 0xc3532d2b, 0x04c56c64, + 0x45f4777d, 0x86a75a56, 0xc796414f, 0x088ad9c8, 0x49bbc2d1, + 0x8ae8effa, 0xcbd9f4e3, 0x0c4fb5ac, 0x4d7eaeb5, 0x8e2d839e, + 0xcf1c9887, 0x5112c24a, 0x1023d953, 0xd370f478, 0x9241ef61, + 0x55d7ae2e, 0x14e6b537, 0xd7b5981c, 0x96848305, 0x59981b82, + 0x18a9009b, 0xdbfa2db0, 0x9acb36a9, 0x5d5d77e6, 0x1c6c6cff, + 0xdf3f41d4, 0x9e0e5acd, 0xa2248495, 0xe3159f8c, 0x2046b2a7, + 0x6177a9be, 0xa6e1e8f1, 0xe7d0f3e8, 0x2483dec3, 0x65b2c5da, + 0xaaae5d5d, 0xeb9f4644, 0x28cc6b6f, 0x69fd7076, 0xae6b3139, + 0xef5a2a20, 0x2c09070b, 0x6d381c12, 0xf33646df, 0xb2075dc6, + 0x715470ed, 0x30656bf4, 0xf7f32abb, 0xb6c231a2, 0x75911c89, + 0x34a00790, 0xfbbc9f17, 0xba8d840e, 0x79dea925, 0x38efb23c, + 0xff79f373, 0xbe48e86a, 0x7d1bc541, 0x3c2ade58, 0x054f79f0, + 0x447e62e9, 0x872d4fc2, 0xc61c54db, 0x018a1594, 0x40bb0e8d, + 0x83e823a6, 0xc2d938bf, 0x0dc5a038, 0x4cf4bb21, 0x8fa7960a, + 0xce968d13, 0x0900cc5c, 0x4831d745, 0x8b62fa6e, 0xca53e177, + 0x545dbbba, 0x156ca0a3, 0xd63f8d88, 0x970e9691, 0x5098d7de, + 0x11a9ccc7, 0xd2fae1ec, 0x93cbfaf5, 0x5cd76272, 0x1de6796b, + 0xdeb55440, 0x9f844f59, 0x58120e16, 0x1923150f, 0xda703824, + 0x9b41233d, 0xa76bfd65, 0xe65ae67c, 0x2509cb57, 0x6438d04e, + 0xa3ae9101, 0xe29f8a18, 0x21cca733, 0x60fdbc2a, 0xafe124ad, + 0xeed03fb4, 0x2d83129f, 0x6cb20986, 0xab2448c9, 0xea1553d0, + 0x29467efb, 0x687765e2, 0xf6793f2f, 0xb7482436, 0x741b091d, + 0x352a1204, 0xf2bc534b, 0xb38d4852, 0x70de6579, 0x31ef7e60, + 0xfef3e6e7, 0xbfc2fdfe, 0x7c91d0d5, 0x3da0cbcc, 0xfa368a83, + 0xbb07919a, 0x7854bcb1, 0x3965a7a8, 0x4b98833b, 0x0aa99822, + 0xc9fab509, 0x88cbae10, 0x4f5def5f, 0x0e6cf446, 0xcd3fd96d, + 0x8c0ec274, 0x43125af3, 0x022341ea, 0xc1706cc1, 0x804177d8, + 0x47d73697, 0x06e62d8e, 0xc5b500a5, 0x84841bbc, 0x1a8a4171, + 0x5bbb5a68, 0x98e87743, 0xd9d96c5a, 0x1e4f2d15, 0x5f7e360c, + 0x9c2d1b27, 0xdd1c003e, 0x120098b9, 0x533183a0, 0x9062ae8b, + 0xd153b592, 0x16c5f4dd, 0x57f4efc4, 0x94a7c2ef, 0xd596d9f6, + 0xe9bc07ae, 0xa88d1cb7, 0x6bde319c, 0x2aef2a85, 0xed796bca, + 0xac4870d3, 0x6f1b5df8, 0x2e2a46e1, 0xe136de66, 0xa007c57f, + 0x6354e854, 0x2265f34d, 0xe5f3b202, 0xa4c2a91b, 0x67918430, + 0x26a09f29, 0xb8aec5e4, 0xf99fdefd, 0x3accf3d6, 0x7bfde8cf, + 0xbc6ba980, 0xfd5ab299, 0x3e099fb2, 0x7f3884ab, 0xb0241c2c, + 0xf1150735, 0x32462a1e, 0x73773107, 0xb4e17048, 0xf5d06b51, + 0x3683467a, 0x77b25d63, 0x4ed7facb, 0x0fe6e1d2, 0xccb5ccf9, + 0x8d84d7e0, 0x4a1296af, 0x0b238db6, 0xc870a09d, 0x8941bb84, + 0x465d2303, 0x076c381a, 0xc43f1531, 0x850e0e28, 0x42984f67, + 0x03a9547e, 0xc0fa7955, 0x81cb624c, 0x1fc53881, 0x5ef42398, + 0x9da70eb3, 0xdc9615aa, 0x1b0054e5, 0x5a314ffc, 0x996262d7, + 0xd85379ce, 0x174fe149, 0x567efa50, 0x952dd77b, 0xd41ccc62, + 0x138a8d2d, 0x52bb9634, 0x91e8bb1f, 0xd0d9a006, 0xecf37e5e, + 0xadc26547, 0x6e91486c, 0x2fa05375, 0xe836123a, 0xa9070923, + 0x6a542408, 0x2b653f11, 0xe479a796, 0xa548bc8f, 0x661b91a4, + 0x272a8abd, 0xe0bccbf2, 0xa18dd0eb, 0x62defdc0, 0x23efe6d9, + 0xbde1bc14, 0xfcd0a70d, 0x3f838a26, 0x7eb2913f, 0xb924d070, + 0xf815cb69, 0x3b46e642, 0x7a77fd5b, 0xb56b65dc, 0xf45a7ec5, + 0x370953ee, 0x763848f7, 0xb1ae09b8, 0xf09f12a1, 0x33cc3f8a, + 0x72fd2493}, + {0x00000000, 0x376ac201, 0x6ed48403, 0x59be4602, 0xdca80907, + 0xebc2cb06, 0xb27c8d04, 0x85164f05, 0xb851130e, 0x8f3bd10f, + 0xd685970d, 0xe1ef550c, 0x64f91a09, 0x5393d808, 0x0a2d9e0a, + 0x3d475c0b, 0x70a3261c, 0x47c9e41d, 0x1e77a21f, 0x291d601e, + 0xac0b2f1b, 0x9b61ed1a, 0xc2dfab18, 0xf5b56919, 0xc8f23512, + 0xff98f713, 0xa626b111, 0x914c7310, 0x145a3c15, 0x2330fe14, + 0x7a8eb816, 0x4de47a17, 0xe0464d38, 0xd72c8f39, 0x8e92c93b, + 0xb9f80b3a, 0x3cee443f, 0x0b84863e, 0x523ac03c, 0x6550023d, + 0x58175e36, 0x6f7d9c37, 0x36c3da35, 0x01a91834, 0x84bf5731, + 0xb3d59530, 0xea6bd332, 0xdd011133, 0x90e56b24, 0xa78fa925, + 0xfe31ef27, 0xc95b2d26, 0x4c4d6223, 0x7b27a022, 0x2299e620, + 0x15f32421, 0x28b4782a, 0x1fdeba2b, 0x4660fc29, 0x710a3e28, + 0xf41c712d, 0xc376b32c, 0x9ac8f52e, 0xada2372f, 0xc08d9a70, + 0xf7e75871, 0xae591e73, 0x9933dc72, 0x1c259377, 0x2b4f5176, + 0x72f11774, 0x459bd575, 0x78dc897e, 0x4fb64b7f, 0x16080d7d, + 0x2162cf7c, 0xa4748079, 0x931e4278, 0xcaa0047a, 0xfdcac67b, + 0xb02ebc6c, 0x87447e6d, 0xdefa386f, 0xe990fa6e, 0x6c86b56b, + 0x5bec776a, 0x02523168, 0x3538f369, 0x087faf62, 0x3f156d63, + 0x66ab2b61, 0x51c1e960, 0xd4d7a665, 0xe3bd6464, 0xba032266, + 0x8d69e067, 0x20cbd748, 0x17a11549, 0x4e1f534b, 0x7975914a, + 0xfc63de4f, 0xcb091c4e, 0x92b75a4c, 0xa5dd984d, 0x989ac446, + 0xaff00647, 0xf64e4045, 0xc1248244, 0x4432cd41, 0x73580f40, + 0x2ae64942, 0x1d8c8b43, 0x5068f154, 0x67023355, 0x3ebc7557, + 0x09d6b756, 0x8cc0f853, 0xbbaa3a52, 0xe2147c50, 0xd57ebe51, + 0xe839e25a, 0xdf53205b, 0x86ed6659, 0xb187a458, 0x3491eb5d, + 0x03fb295c, 0x5a456f5e, 0x6d2fad5f, 0x801b35e1, 0xb771f7e0, + 0xeecfb1e2, 0xd9a573e3, 0x5cb33ce6, 0x6bd9fee7, 0x3267b8e5, + 0x050d7ae4, 0x384a26ef, 0x0f20e4ee, 0x569ea2ec, 0x61f460ed, + 0xe4e22fe8, 0xd388ede9, 0x8a36abeb, 0xbd5c69ea, 0xf0b813fd, + 0xc7d2d1fc, 0x9e6c97fe, 0xa90655ff, 0x2c101afa, 0x1b7ad8fb, + 0x42c49ef9, 0x75ae5cf8, 0x48e900f3, 0x7f83c2f2, 0x263d84f0, + 0x115746f1, 0x944109f4, 0xa32bcbf5, 0xfa958df7, 0xcdff4ff6, + 0x605d78d9, 0x5737bad8, 0x0e89fcda, 0x39e33edb, 0xbcf571de, + 0x8b9fb3df, 0xd221f5dd, 0xe54b37dc, 0xd80c6bd7, 0xef66a9d6, + 0xb6d8efd4, 0x81b22dd5, 0x04a462d0, 0x33cea0d1, 0x6a70e6d3, + 0x5d1a24d2, 0x10fe5ec5, 0x27949cc4, 0x7e2adac6, 0x494018c7, + 0xcc5657c2, 0xfb3c95c3, 0xa282d3c1, 0x95e811c0, 0xa8af4dcb, + 0x9fc58fca, 0xc67bc9c8, 0xf1110bc9, 0x740744cc, 0x436d86cd, + 0x1ad3c0cf, 0x2db902ce, 0x4096af91, 0x77fc6d90, 0x2e422b92, + 0x1928e993, 0x9c3ea696, 0xab546497, 0xf2ea2295, 0xc580e094, + 0xf8c7bc9f, 0xcfad7e9e, 0x9613389c, 0xa179fa9d, 0x246fb598, + 0x13057799, 0x4abb319b, 0x7dd1f39a, 0x3035898d, 0x075f4b8c, + 0x5ee10d8e, 0x698bcf8f, 0xec9d808a, 0xdbf7428b, 0x82490489, + 0xb523c688, 0x88649a83, 0xbf0e5882, 0xe6b01e80, 0xd1dadc81, + 0x54cc9384, 0x63a65185, 0x3a181787, 0x0d72d586, 0xa0d0e2a9, + 0x97ba20a8, 0xce0466aa, 0xf96ea4ab, 0x7c78ebae, 0x4b1229af, + 0x12ac6fad, 0x25c6adac, 0x1881f1a7, 0x2feb33a6, 0x765575a4, + 0x413fb7a5, 0xc429f8a0, 0xf3433aa1, 0xaafd7ca3, 0x9d97bea2, + 0xd073c4b5, 0xe71906b4, 0xbea740b6, 0x89cd82b7, 0x0cdbcdb2, + 0x3bb10fb3, 0x620f49b1, 0x55658bb0, 0x6822d7bb, 0x5f4815ba, + 0x06f653b8, 0x319c91b9, 0xb48adebc, 0x83e01cbd, 0xda5e5abf, + 0xed3498be}, + {0x00000000, 0x6567bcb8, 0x8bc809aa, 0xeeafb512, 0x5797628f, + 0x32f0de37, 0xdc5f6b25, 0xb938d79d, 0xef28b4c5, 0x8a4f087d, + 0x64e0bd6f, 0x018701d7, 0xb8bfd64a, 0xddd86af2, 0x3377dfe0, + 0x56106358, 0x9f571950, 0xfa30a5e8, 0x149f10fa, 0x71f8ac42, + 0xc8c07bdf, 0xada7c767, 0x43087275, 0x266fcecd, 0x707fad95, + 0x1518112d, 0xfbb7a43f, 0x9ed01887, 0x27e8cf1a, 0x428f73a2, + 0xac20c6b0, 0xc9477a08, 0x3eaf32a0, 0x5bc88e18, 0xb5673b0a, + 0xd00087b2, 0x6938502f, 0x0c5fec97, 0xe2f05985, 0x8797e53d, + 0xd1878665, 0xb4e03add, 0x5a4f8fcf, 0x3f283377, 0x8610e4ea, + 0xe3775852, 0x0dd8ed40, 0x68bf51f8, 0xa1f82bf0, 0xc49f9748, + 0x2a30225a, 0x4f579ee2, 0xf66f497f, 0x9308f5c7, 0x7da740d5, + 0x18c0fc6d, 0x4ed09f35, 0x2bb7238d, 0xc518969f, 0xa07f2a27, + 0x1947fdba, 0x7c204102, 0x928ff410, 0xf7e848a8, 0x3d58149b, + 0x583fa823, 0xb6901d31, 0xd3f7a189, 0x6acf7614, 0x0fa8caac, + 0xe1077fbe, 0x8460c306, 0xd270a05e, 0xb7171ce6, 0x59b8a9f4, + 0x3cdf154c, 0x85e7c2d1, 0xe0807e69, 0x0e2fcb7b, 0x6b4877c3, + 0xa20f0dcb, 0xc768b173, 0x29c70461, 0x4ca0b8d9, 0xf5986f44, + 0x90ffd3fc, 0x7e5066ee, 0x1b37da56, 0x4d27b90e, 0x284005b6, + 0xc6efb0a4, 0xa3880c1c, 0x1ab0db81, 0x7fd76739, 0x9178d22b, + 0xf41f6e93, 0x03f7263b, 0x66909a83, 0x883f2f91, 0xed589329, + 0x546044b4, 0x3107f80c, 0xdfa84d1e, 0xbacff1a6, 0xecdf92fe, + 0x89b82e46, 0x67179b54, 0x027027ec, 0xbb48f071, 0xde2f4cc9, + 0x3080f9db, 0x55e74563, 0x9ca03f6b, 0xf9c783d3, 0x176836c1, + 0x720f8a79, 0xcb375de4, 0xae50e15c, 0x40ff544e, 0x2598e8f6, + 0x73888bae, 0x16ef3716, 0xf8408204, 0x9d273ebc, 0x241fe921, + 0x41785599, 0xafd7e08b, 0xcab05c33, 0x3bb659ed, 0x5ed1e555, + 0xb07e5047, 0xd519ecff, 0x6c213b62, 0x094687da, 0xe7e932c8, + 0x828e8e70, 0xd49eed28, 0xb1f95190, 0x5f56e482, 0x3a31583a, + 0x83098fa7, 0xe66e331f, 0x08c1860d, 0x6da63ab5, 0xa4e140bd, + 0xc186fc05, 0x2f294917, 0x4a4ef5af, 0xf3762232, 0x96119e8a, + 0x78be2b98, 0x1dd99720, 0x4bc9f478, 0x2eae48c0, 0xc001fdd2, + 0xa566416a, 0x1c5e96f7, 0x79392a4f, 0x97969f5d, 0xf2f123e5, + 0x05196b4d, 0x607ed7f5, 0x8ed162e7, 0xebb6de5f, 0x528e09c2, + 0x37e9b57a, 0xd9460068, 0xbc21bcd0, 0xea31df88, 0x8f566330, + 0x61f9d622, 0x049e6a9a, 0xbda6bd07, 0xd8c101bf, 0x366eb4ad, + 0x53090815, 0x9a4e721d, 0xff29cea5, 0x11867bb7, 0x74e1c70f, + 0xcdd91092, 0xa8beac2a, 0x46111938, 0x2376a580, 0x7566c6d8, + 0x10017a60, 0xfeaecf72, 0x9bc973ca, 0x22f1a457, 0x479618ef, + 0xa939adfd, 0xcc5e1145, 0x06ee4d76, 0x6389f1ce, 0x8d2644dc, + 0xe841f864, 0x51792ff9, 0x341e9341, 0xdab12653, 0xbfd69aeb, + 0xe9c6f9b3, 0x8ca1450b, 0x620ef019, 0x07694ca1, 0xbe519b3c, + 0xdb362784, 0x35999296, 0x50fe2e2e, 0x99b95426, 0xfcdee89e, + 0x12715d8c, 0x7716e134, 0xce2e36a9, 0xab498a11, 0x45e63f03, + 0x208183bb, 0x7691e0e3, 0x13f65c5b, 0xfd59e949, 0x983e55f1, + 0x2106826c, 0x44613ed4, 0xaace8bc6, 0xcfa9377e, 0x38417fd6, + 0x5d26c36e, 0xb389767c, 0xd6eecac4, 0x6fd61d59, 0x0ab1a1e1, + 0xe41e14f3, 0x8179a84b, 0xd769cb13, 0xb20e77ab, 0x5ca1c2b9, + 0x39c67e01, 0x80fea99c, 0xe5991524, 0x0b36a036, 0x6e511c8e, + 0xa7166686, 0xc271da3e, 0x2cde6f2c, 0x49b9d394, 0xf0810409, + 0x95e6b8b1, 0x7b490da3, 0x1e2eb11b, 0x483ed243, 0x2d596efb, + 0xc3f6dbe9, 0xa6916751, 0x1fa9b0cc, 0x7ace0c74, 0x9461b966, + 0xf10605de}}; + +#endif + +#endif + +#if N == 2 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xae689191, 0x87a02563, 0x29c8b4f2, 0xd4314c87, + 0x7a59dd16, 0x539169e4, 0xfdf9f875, 0x73139f4f, 0xdd7b0ede, + 0xf4b3ba2c, 0x5adb2bbd, 0xa722d3c8, 0x094a4259, 0x2082f6ab, + 0x8eea673a, 0xe6273e9e, 0x484faf0f, 0x61871bfd, 0xcfef8a6c, + 0x32167219, 0x9c7ee388, 0xb5b6577a, 0x1bdec6eb, 0x9534a1d1, + 0x3b5c3040, 0x129484b2, 0xbcfc1523, 0x4105ed56, 0xef6d7cc7, + 0xc6a5c835, 0x68cd59a4, 0x173f7b7d, 0xb957eaec, 0x909f5e1e, + 0x3ef7cf8f, 0xc30e37fa, 0x6d66a66b, 0x44ae1299, 0xeac68308, + 0x642ce432, 0xca4475a3, 0xe38cc151, 0x4de450c0, 0xb01da8b5, + 0x1e753924, 0x37bd8dd6, 0x99d51c47, 0xf11845e3, 0x5f70d472, + 0x76b86080, 0xd8d0f111, 0x25290964, 0x8b4198f5, 0xa2892c07, + 0x0ce1bd96, 0x820bdaac, 0x2c634b3d, 0x05abffcf, 0xabc36e5e, + 0x563a962b, 0xf85207ba, 0xd19ab348, 0x7ff222d9, 0x2e7ef6fa, + 0x8016676b, 0xa9ded399, 0x07b64208, 0xfa4fba7d, 0x54272bec, + 0x7def9f1e, 0xd3870e8f, 0x5d6d69b5, 0xf305f824, 0xdacd4cd6, + 0x74a5dd47, 0x895c2532, 0x2734b4a3, 0x0efc0051, 0xa09491c0, + 0xc859c864, 0x663159f5, 0x4ff9ed07, 0xe1917c96, 0x1c6884e3, + 0xb2001572, 0x9bc8a180, 0x35a03011, 0xbb4a572b, 0x1522c6ba, + 0x3cea7248, 0x9282e3d9, 0x6f7b1bac, 0xc1138a3d, 0xe8db3ecf, + 0x46b3af5e, 0x39418d87, 0x97291c16, 0xbee1a8e4, 0x10893975, + 0xed70c100, 0x43185091, 0x6ad0e463, 0xc4b875f2, 0x4a5212c8, + 0xe43a8359, 0xcdf237ab, 0x639aa63a, 0x9e635e4f, 0x300bcfde, + 0x19c37b2c, 0xb7abeabd, 0xdf66b319, 0x710e2288, 0x58c6967a, + 0xf6ae07eb, 0x0b57ff9e, 0xa53f6e0f, 0x8cf7dafd, 0x229f4b6c, + 0xac752c56, 0x021dbdc7, 0x2bd50935, 0x85bd98a4, 0x784460d1, + 0xd62cf140, 0xffe445b2, 0x518cd423, 0x5cfdedf4, 0xf2957c65, + 0xdb5dc897, 0x75355906, 0x88cca173, 0x26a430e2, 0x0f6c8410, + 0xa1041581, 0x2fee72bb, 0x8186e32a, 0xa84e57d8, 0x0626c649, + 0xfbdf3e3c, 0x55b7afad, 0x7c7f1b5f, 0xd2178ace, 0xbadad36a, + 0x14b242fb, 0x3d7af609, 0x93126798, 0x6eeb9fed, 0xc0830e7c, + 0xe94bba8e, 0x47232b1f, 0xc9c94c25, 0x67a1ddb4, 0x4e696946, + 0xe001f8d7, 0x1df800a2, 0xb3909133, 0x9a5825c1, 0x3430b450, + 0x4bc29689, 0xe5aa0718, 0xcc62b3ea, 0x620a227b, 0x9ff3da0e, + 0x319b4b9f, 0x1853ff6d, 0xb63b6efc, 0x38d109c6, 0x96b99857, + 0xbf712ca5, 0x1119bd34, 0xece04541, 0x4288d4d0, 0x6b406022, + 0xc528f1b3, 0xade5a817, 0x038d3986, 0x2a458d74, 0x842d1ce5, + 0x79d4e490, 0xd7bc7501, 0xfe74c1f3, 0x501c5062, 0xdef63758, + 0x709ea6c9, 0x5956123b, 0xf73e83aa, 0x0ac77bdf, 0xa4afea4e, + 0x8d675ebc, 0x230fcf2d, 0x72831b0e, 0xdceb8a9f, 0xf5233e6d, + 0x5b4baffc, 0xa6b25789, 0x08dac618, 0x211272ea, 0x8f7ae37b, + 0x01908441, 0xaff815d0, 0x8630a122, 0x285830b3, 0xd5a1c8c6, + 0x7bc95957, 0x5201eda5, 0xfc697c34, 0x94a42590, 0x3accb401, + 0x130400f3, 0xbd6c9162, 0x40956917, 0xeefdf886, 0xc7354c74, + 0x695ddde5, 0xe7b7badf, 0x49df2b4e, 0x60179fbc, 0xce7f0e2d, + 0x3386f658, 0x9dee67c9, 0xb426d33b, 0x1a4e42aa, 0x65bc6073, + 0xcbd4f1e2, 0xe21c4510, 0x4c74d481, 0xb18d2cf4, 0x1fe5bd65, + 0x362d0997, 0x98459806, 0x16afff3c, 0xb8c76ead, 0x910fda5f, + 0x3f674bce, 0xc29eb3bb, 0x6cf6222a, 0x453e96d8, 0xeb560749, + 0x839b5eed, 0x2df3cf7c, 0x043b7b8e, 0xaa53ea1f, 0x57aa126a, + 0xf9c283fb, 0xd00a3709, 0x7e62a698, 0xf088c1a2, 0x5ee05033, + 0x7728e4c1, 0xd9407550, 0x24b98d25, 0x8ad11cb4, 0xa319a846, + 0x0d7139d7}, + {0x00000000, 0xb9fbdbe8, 0xa886b191, 0x117d6a79, 0x8a7c6563, + 0x3387be8b, 0x22fad4f2, 0x9b010f1a, 0xcf89cc87, 0x7672176f, + 0x670f7d16, 0xdef4a6fe, 0x45f5a9e4, 0xfc0e720c, 0xed731875, + 0x5488c39d, 0x44629f4f, 0xfd9944a7, 0xece42ede, 0x551ff536, + 0xce1efa2c, 0x77e521c4, 0x66984bbd, 0xdf639055, 0x8beb53c8, + 0x32108820, 0x236de259, 0x9a9639b1, 0x019736ab, 0xb86ced43, + 0xa911873a, 0x10ea5cd2, 0x88c53e9e, 0x313ee576, 0x20438f0f, + 0x99b854e7, 0x02b95bfd, 0xbb428015, 0xaa3fea6c, 0x13c43184, + 0x474cf219, 0xfeb729f1, 0xefca4388, 0x56319860, 0xcd30977a, + 0x74cb4c92, 0x65b626eb, 0xdc4dfd03, 0xcca7a1d1, 0x755c7a39, + 0x64211040, 0xdddacba8, 0x46dbc4b2, 0xff201f5a, 0xee5d7523, + 0x57a6aecb, 0x032e6d56, 0xbad5b6be, 0xaba8dcc7, 0x1253072f, + 0x89520835, 0x30a9d3dd, 0x21d4b9a4, 0x982f624c, 0xcafb7b7d, + 0x7300a095, 0x627dcaec, 0xdb861104, 0x40871e1e, 0xf97cc5f6, + 0xe801af8f, 0x51fa7467, 0x0572b7fa, 0xbc896c12, 0xadf4066b, + 0x140fdd83, 0x8f0ed299, 0x36f50971, 0x27886308, 0x9e73b8e0, + 0x8e99e432, 0x37623fda, 0x261f55a3, 0x9fe48e4b, 0x04e58151, + 0xbd1e5ab9, 0xac6330c0, 0x1598eb28, 0x411028b5, 0xf8ebf35d, + 0xe9969924, 0x506d42cc, 0xcb6c4dd6, 0x7297963e, 0x63eafc47, + 0xda1127af, 0x423e45e3, 0xfbc59e0b, 0xeab8f472, 0x53432f9a, + 0xc8422080, 0x71b9fb68, 0x60c49111, 0xd93f4af9, 0x8db78964, + 0x344c528c, 0x253138f5, 0x9ccae31d, 0x07cbec07, 0xbe3037ef, + 0xaf4d5d96, 0x16b6867e, 0x065cdaac, 0xbfa70144, 0xaeda6b3d, + 0x1721b0d5, 0x8c20bfcf, 0x35db6427, 0x24a60e5e, 0x9d5dd5b6, + 0xc9d5162b, 0x702ecdc3, 0x6153a7ba, 0xd8a87c52, 0x43a97348, + 0xfa52a8a0, 0xeb2fc2d9, 0x52d41931, 0x4e87f0bb, 0xf77c2b53, + 0xe601412a, 0x5ffa9ac2, 0xc4fb95d8, 0x7d004e30, 0x6c7d2449, + 0xd586ffa1, 0x810e3c3c, 0x38f5e7d4, 0x29888dad, 0x90735645, + 0x0b72595f, 0xb28982b7, 0xa3f4e8ce, 0x1a0f3326, 0x0ae56ff4, + 0xb31eb41c, 0xa263de65, 0x1b98058d, 0x80990a97, 0x3962d17f, + 0x281fbb06, 0x91e460ee, 0xc56ca373, 0x7c97789b, 0x6dea12e2, + 0xd411c90a, 0x4f10c610, 0xf6eb1df8, 0xe7967781, 0x5e6dac69, + 0xc642ce25, 0x7fb915cd, 0x6ec47fb4, 0xd73fa45c, 0x4c3eab46, + 0xf5c570ae, 0xe4b81ad7, 0x5d43c13f, 0x09cb02a2, 0xb030d94a, + 0xa14db333, 0x18b668db, 0x83b767c1, 0x3a4cbc29, 0x2b31d650, + 0x92ca0db8, 0x8220516a, 0x3bdb8a82, 0x2aa6e0fb, 0x935d3b13, + 0x085c3409, 0xb1a7efe1, 0xa0da8598, 0x19215e70, 0x4da99ded, + 0xf4524605, 0xe52f2c7c, 0x5cd4f794, 0xc7d5f88e, 0x7e2e2366, + 0x6f53491f, 0xd6a892f7, 0x847c8bc6, 0x3d87502e, 0x2cfa3a57, + 0x9501e1bf, 0x0e00eea5, 0xb7fb354d, 0xa6865f34, 0x1f7d84dc, + 0x4bf54741, 0xf20e9ca9, 0xe373f6d0, 0x5a882d38, 0xc1892222, + 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0xaeccb61e, 0xd95264ee, 0x42f72881, + 0x3c7b5a0c, 0xa7de1663, 0xd040c493, 0x4be588fc, 0x3f7d6173, + 0xa4d82d1c, 0xd346ffec, 0x48e3b383, 0x3a772cf2, 0xa1d2609d, + 0xd64cb26d, 0x4de9fe02, 0x3971178d, 0xa2d45be2, 0xd54a8912, + 0x4eefc57d, 0x28526c08, 0xb3f72067, 0xc469f297, 0x5fccbef8, + 0x2b545777, 0xb0f11b18, 0xc76fc9e8, 0x5cca8587, 0x2e5e1af6, + 0xb5fb5699, 0xc2658469, 0x59c0c806, 0x2d582189, 0xb6fd6de6, + 0xc163bf16, 0x5ac6f379, 0x244a81f4, 0xbfefcd9b, 0xc8711f6b, + 0x53d45304, 0x274cba8b, 0xbce9f6e4, 0xcb772414, 0x50d2687b, + 0x2246f70a, 0xb9e3bb65, 0xce7d6995, 0x55d825fa, 0x2140cc75, + 0xbae5801a, 0xcd7b52ea, 0x56de1e85, 0x60c76fe0, 0xfb62238f, + 0x8cfcf17f, 0x1759bd10, 0x63c1549f, 0xf86418f0, 0x8ffaca00, + 0x145f866f, 0x66cb191e, 0xfd6e5571, 0x8af08781, 0x1155cbee, + 0x65cd2261, 0xfe686e0e, 0x89f6bcfe, 0x1253f091, 0x6cdf821c, + 0xf77ace73, 0x80e41c83, 0x1b4150ec, 0x6fd9b963, 0xf47cf50c, + 0x83e227fc, 0x18476b93, 0x6ad3f4e2, 0xf176b88d, 0x86e86a7d, + 0x1d4d2612, 0x69d5cf9d, 0xf27083f2, 0x85ee5102, 0x1e4b1d6d, + 0x78f6b418, 0xe353f877, 0x94cd2a87, 0x0f6866e8, 0x7bf08f67, + 0xe055c308, 0x97cb11f8, 0x0c6e5d97, 0x7efac2e6, 0xe55f8e89, + 0x92c15c79, 0x09641016, 0x7dfcf999, 0xe659b5f6, 0x91c76706, + 0x0a622b69, 0x74ee59e4, 0xef4b158b, 0x98d5c77b, 0x03708b14, + 0x77e8629b, 0xec4d2ef4, 0x9bd3fc04, 0x0076b06b, 0x72e22f1a, + 0xe9476375, 0x9ed9b185, 0x057cfdea, 0x71e41465, 0xea41580a, + 0x9ddf8afa, 0x067ac695, 0x50a4d810, 0xcb01947f, 0xbc9f468f, + 0x273a0ae0, 0x53a2e36f, 0xc807af00, 0xbf997df0, 0x243c319f, + 0x56a8aeee, 0xcd0de281, 0xba933071, 0x21367c1e, 0x55ae9591, + 0xce0bd9fe, 0xb9950b0e, 0x22304761, 0x5cbc35ec, 0xc7197983, + 0xb087ab73, 0x2b22e71c, 0x5fba0e93, 0xc41f42fc, 0xb381900c, + 0x2824dc63, 0x5ab04312, 0xc1150f7d, 0xb68bdd8d, 0x2d2e91e2, + 0x59b6786d, 0xc2133402, 0xb58de6f2, 0x2e28aa9d, 0x489503e8, + 0xd3304f87, 0xa4ae9d77, 0x3f0bd118, 0x4b933897, 0xd03674f8, + 0xa7a8a608, 0x3c0dea67, 0x4e997516, 0xd53c3979, 0xa2a2eb89, + 0x3907a7e6, 0x4d9f4e69, 0xd63a0206, 0xa1a4d0f6, 0x3a019c99, + 0x448dee14, 0xdf28a27b, 0xa8b6708b, 0x33133ce4, 0x478bd56b, + 0xdc2e9904, 0xabb04bf4, 0x3015079b, 0x428198ea, 0xd924d485, + 0xaeba0675, 0x351f4a1a, 0x4187a395, 0xda22effa, 0xadbc3d0a, + 0x36197165}, + {0x00000000, 0xc18edfc0, 0x586cb9c1, 0x99e26601, 0xb0d97382, + 0x7157ac42, 0xe8b5ca43, 0x293b1583, 0xbac3e145, 0x7b4d3e85, + 0xe2af5884, 0x23218744, 0x0a1a92c7, 0xcb944d07, 0x52762b06, + 0x93f8f4c6, 0xaef6c4cb, 0x6f781b0b, 0xf69a7d0a, 0x3714a2ca, + 0x1e2fb749, 0xdfa16889, 0x46430e88, 0x87cdd148, 0x1435258e, + 0xd5bbfa4e, 0x4c599c4f, 0x8dd7438f, 0xa4ec560c, 0x656289cc, + 0xfc80efcd, 0x3d0e300d, 0x869c8fd7, 0x47125017, 0xdef03616, + 0x1f7ee9d6, 0x3645fc55, 0xf7cb2395, 0x6e294594, 0xafa79a54, + 0x3c5f6e92, 0xfdd1b152, 0x6433d753, 0xa5bd0893, 0x8c861d10, + 0x4d08c2d0, 0xd4eaa4d1, 0x15647b11, 0x286a4b1c, 0xe9e494dc, + 0x7006f2dd, 0xb1882d1d, 0x98b3389e, 0x593de75e, 0xc0df815f, + 0x01515e9f, 0x92a9aa59, 0x53277599, 0xcac51398, 0x0b4bcc58, + 0x2270d9db, 0xe3fe061b, 0x7a1c601a, 0xbb92bfda, 0xd64819ef, + 0x17c6c62f, 0x8e24a02e, 0x4faa7fee, 0x66916a6d, 0xa71fb5ad, + 0x3efdd3ac, 0xff730c6c, 0x6c8bf8aa, 0xad05276a, 0x34e7416b, + 0xf5699eab, 0xdc528b28, 0x1ddc54e8, 0x843e32e9, 0x45b0ed29, + 0x78bedd24, 0xb93002e4, 0x20d264e5, 0xe15cbb25, 0xc867aea6, + 0x09e97166, 0x900b1767, 0x5185c8a7, 0xc27d3c61, 0x03f3e3a1, + 0x9a1185a0, 0x5b9f5a60, 0x72a44fe3, 0xb32a9023, 0x2ac8f622, + 0xeb4629e2, 0x50d49638, 0x915a49f8, 0x08b82ff9, 0xc936f039, + 0xe00de5ba, 0x21833a7a, 0xb8615c7b, 0x79ef83bb, 0xea17777d, + 0x2b99a8bd, 0xb27bcebc, 0x73f5117c, 0x5ace04ff, 0x9b40db3f, + 0x02a2bd3e, 0xc32c62fe, 0xfe2252f3, 0x3fac8d33, 0xa64eeb32, + 0x67c034f2, 0x4efb2171, 0x8f75feb1, 0x169798b0, 0xd7194770, + 0x44e1b3b6, 0x856f6c76, 0x1c8d0a77, 0xdd03d5b7, 0xf438c034, + 0x35b61ff4, 0xac5479f5, 0x6ddaa635, 0x77e1359f, 0xb66fea5f, + 0x2f8d8c5e, 0xee03539e, 0xc738461d, 0x06b699dd, 0x9f54ffdc, + 0x5eda201c, 0xcd22d4da, 0x0cac0b1a, 0x954e6d1b, 0x54c0b2db, + 0x7dfba758, 0xbc757898, 0x25971e99, 0xe419c159, 0xd917f154, + 0x18992e94, 0x817b4895, 0x40f59755, 0x69ce82d6, 0xa8405d16, + 0x31a23b17, 0xf02ce4d7, 0x63d41011, 0xa25acfd1, 0x3bb8a9d0, + 0xfa367610, 0xd30d6393, 0x1283bc53, 0x8b61da52, 0x4aef0592, + 0xf17dba48, 0x30f36588, 0xa9110389, 0x689fdc49, 0x41a4c9ca, + 0x802a160a, 0x19c8700b, 0xd846afcb, 0x4bbe5b0d, 0x8a3084cd, + 0x13d2e2cc, 0xd25c3d0c, 0xfb67288f, 0x3ae9f74f, 0xa30b914e, + 0x62854e8e, 0x5f8b7e83, 0x9e05a143, 0x07e7c742, 0xc6691882, + 0xef520d01, 0x2edcd2c1, 0xb73eb4c0, 0x76b06b00, 0xe5489fc6, + 0x24c64006, 0xbd242607, 0x7caaf9c7, 0x5591ec44, 0x941f3384, + 0x0dfd5585, 0xcc738a45, 0xa1a92c70, 0x6027f3b0, 0xf9c595b1, + 0x384b4a71, 0x11705ff2, 0xd0fe8032, 0x491ce633, 0x889239f3, + 0x1b6acd35, 0xdae412f5, 0x430674f4, 0x8288ab34, 0xabb3beb7, + 0x6a3d6177, 0xf3df0776, 0x3251d8b6, 0x0f5fe8bb, 0xced1377b, + 0x5733517a, 0x96bd8eba, 0xbf869b39, 0x7e0844f9, 0xe7ea22f8, + 0x2664fd38, 0xb59c09fe, 0x7412d63e, 0xedf0b03f, 0x2c7e6fff, + 0x05457a7c, 0xc4cba5bc, 0x5d29c3bd, 0x9ca71c7d, 0x2735a3a7, + 0xe6bb7c67, 0x7f591a66, 0xbed7c5a6, 0x97ecd025, 0x56620fe5, + 0xcf8069e4, 0x0e0eb624, 0x9df642e2, 0x5c789d22, 0xc59afb23, + 0x041424e3, 0x2d2f3160, 0xeca1eea0, 0x754388a1, 0xb4cd5761, + 0x89c3676c, 0x484db8ac, 0xd1afdead, 0x1021016d, 0x391a14ee, + 0xf894cb2e, 0x6176ad2f, 0xa0f872ef, 0x33008629, 0xf28e59e9, + 0x6b6c3fe8, 0xaae2e028, 0x83d9f5ab, 0x42572a6b, 0xdbb54c6a, + 0x1a3b93aa}, + {0x00000000, 0xefc26b3e, 0x04f5d03d, 0xeb37bb03, 0x09eba07a, + 0xe629cb44, 0x0d1e7047, 0xe2dc1b79, 0x13d740f4, 0xfc152bca, + 0x172290c9, 0xf8e0fbf7, 0x1a3ce08e, 0xf5fe8bb0, 0x1ec930b3, + 0xf10b5b8d, 0x27ae81e8, 0xc86cead6, 0x235b51d5, 0xcc993aeb, + 0x2e452192, 0xc1874aac, 0x2ab0f1af, 0xc5729a91, 0x3479c11c, + 0xdbbbaa22, 0x308c1121, 0xdf4e7a1f, 0x3d926166, 0xd2500a58, + 0x3967b15b, 0xd6a5da65, 0x4f5d03d0, 0xa09f68ee, 0x4ba8d3ed, + 0xa46ab8d3, 0x46b6a3aa, 0xa974c894, 0x42437397, 0xad8118a9, + 0x5c8a4324, 0xb348281a, 0x587f9319, 0xb7bdf827, 0x5561e35e, + 0xbaa38860, 0x51943363, 0xbe56585d, 0x68f38238, 0x8731e906, + 0x6c065205, 0x83c4393b, 0x61182242, 0x8eda497c, 0x65edf27f, + 0x8a2f9941, 0x7b24c2cc, 0x94e6a9f2, 0x7fd112f1, 0x901379cf, + 0x72cf62b6, 0x9d0d0988, 0x763ab28b, 0x99f8d9b5, 0x9eba07a0, + 0x71786c9e, 0x9a4fd79d, 0x758dbca3, 0x9751a7da, 0x7893cce4, + 0x93a477e7, 0x7c661cd9, 0x8d6d4754, 0x62af2c6a, 0x89989769, + 0x665afc57, 0x8486e72e, 0x6b448c10, 0x80733713, 0x6fb15c2d, + 0xb9148648, 0x56d6ed76, 0xbde15675, 0x52233d4b, 0xb0ff2632, + 0x5f3d4d0c, 0xb40af60f, 0x5bc89d31, 0xaac3c6bc, 0x4501ad82, + 0xae361681, 0x41f47dbf, 0xa32866c6, 0x4cea0df8, 0xa7ddb6fb, + 0x481fddc5, 0xd1e70470, 0x3e256f4e, 0xd512d44d, 0x3ad0bf73, + 0xd80ca40a, 0x37cecf34, 0xdcf97437, 0x333b1f09, 0xc2304484, + 0x2df22fba, 0xc6c594b9, 0x2907ff87, 0xcbdbe4fe, 0x24198fc0, + 0xcf2e34c3, 0x20ec5ffd, 0xf6498598, 0x198beea6, 0xf2bc55a5, + 0x1d7e3e9b, 0xffa225e2, 0x10604edc, 0xfb57f5df, 0x14959ee1, + 0xe59ec56c, 0x0a5cae52, 0xe16b1551, 0x0ea97e6f, 0xec756516, + 0x03b70e28, 0xe880b52b, 0x0742de15, 0xe6050901, 0x09c7623f, + 0xe2f0d93c, 0x0d32b202, 0xefeea97b, 0x002cc245, 0xeb1b7946, + 0x04d91278, 0xf5d249f5, 0x1a1022cb, 0xf12799c8, 0x1ee5f2f6, + 0xfc39e98f, 0x13fb82b1, 0xf8cc39b2, 0x170e528c, 0xc1ab88e9, + 0x2e69e3d7, 0xc55e58d4, 0x2a9c33ea, 0xc8402893, 0x278243ad, + 0xccb5f8ae, 0x23779390, 0xd27cc81d, 0x3dbea323, 0xd6891820, + 0x394b731e, 0xdb976867, 0x34550359, 0xdf62b85a, 0x30a0d364, + 0xa9580ad1, 0x469a61ef, 0xadaddaec, 0x426fb1d2, 0xa0b3aaab, + 0x4f71c195, 0xa4467a96, 0x4b8411a8, 0xba8f4a25, 0x554d211b, + 0xbe7a9a18, 0x51b8f126, 0xb364ea5f, 0x5ca68161, 0xb7913a62, + 0x5853515c, 0x8ef68b39, 0x6134e007, 0x8a035b04, 0x65c1303a, + 0x871d2b43, 0x68df407d, 0x83e8fb7e, 0x6c2a9040, 0x9d21cbcd, + 0x72e3a0f3, 0x99d41bf0, 0x761670ce, 0x94ca6bb7, 0x7b080089, + 0x903fbb8a, 0x7ffdd0b4, 0x78bf0ea1, 0x977d659f, 0x7c4ade9c, + 0x9388b5a2, 0x7154aedb, 0x9e96c5e5, 0x75a17ee6, 0x9a6315d8, + 0x6b684e55, 0x84aa256b, 0x6f9d9e68, 0x805ff556, 0x6283ee2f, + 0x8d418511, 0x66763e12, 0x89b4552c, 0x5f118f49, 0xb0d3e477, + 0x5be45f74, 0xb426344a, 0x56fa2f33, 0xb938440d, 0x520fff0e, + 0xbdcd9430, 0x4cc6cfbd, 0xa304a483, 0x48331f80, 0xa7f174be, + 0x452d6fc7, 0xaaef04f9, 0x41d8bffa, 0xae1ad4c4, 0x37e20d71, + 0xd820664f, 0x3317dd4c, 0xdcd5b672, 0x3e09ad0b, 0xd1cbc635, + 0x3afc7d36, 0xd53e1608, 0x24354d85, 0xcbf726bb, 0x20c09db8, + 0xcf02f686, 0x2ddeedff, 0xc21c86c1, 0x292b3dc2, 0xc6e956fc, + 0x104c8c99, 0xff8ee7a7, 0x14b95ca4, 0xfb7b379a, 0x19a72ce3, + 0xf66547dd, 0x1d52fcde, 0xf29097e0, 0x039bcc6d, 0xec59a753, + 0x076e1c50, 0xe8ac776e, 0x0a706c17, 0xe5b20729, 0x0e85bc2a, + 0xe147d714}, + {0x00000000, 0x177b1443, 0x2ef62886, 0x398d3cc5, 0x5dec510c, + 0x4a97454f, 0x731a798a, 0x64616dc9, 0xbbd8a218, 0xaca3b65b, + 0x952e8a9e, 0x82559edd, 0xe634f314, 0xf14fe757, 0xc8c2db92, + 0xdfb9cfd1, 0xacc04271, 0xbbbb5632, 0x82366af7, 0x954d7eb4, + 0xf12c137d, 0xe657073e, 0xdfda3bfb, 0xc8a12fb8, 0x1718e069, + 0x0063f42a, 0x39eec8ef, 0x2e95dcac, 0x4af4b165, 0x5d8fa526, + 0x640299e3, 0x73798da0, 0x82f182a3, 0x958a96e0, 0xac07aa25, + 0xbb7cbe66, 0xdf1dd3af, 0xc866c7ec, 0xf1ebfb29, 0xe690ef6a, + 0x392920bb, 0x2e5234f8, 0x17df083d, 0x00a41c7e, 0x64c571b7, + 0x73be65f4, 0x4a335931, 0x5d484d72, 0x2e31c0d2, 0x394ad491, + 0x00c7e854, 0x17bcfc17, 0x73dd91de, 0x64a6859d, 0x5d2bb958, + 0x4a50ad1b, 0x95e962ca, 0x82927689, 0xbb1f4a4c, 0xac645e0f, + 0xc80533c6, 0xdf7e2785, 0xe6f31b40, 0xf1880f03, 0xde920307, + 0xc9e91744, 0xf0642b81, 0xe71f3fc2, 0x837e520b, 0x94054648, + 0xad887a8d, 0xbaf36ece, 0x654aa11f, 0x7231b55c, 0x4bbc8999, + 0x5cc79dda, 0x38a6f013, 0x2fdde450, 0x1650d895, 0x012bccd6, + 0x72524176, 0x65295535, 0x5ca469f0, 0x4bdf7db3, 0x2fbe107a, + 0x38c50439, 0x014838fc, 0x16332cbf, 0xc98ae36e, 0xdef1f72d, + 0xe77ccbe8, 0xf007dfab, 0x9466b262, 0x831da621, 0xba909ae4, + 0xadeb8ea7, 0x5c6381a4, 0x4b1895e7, 0x7295a922, 0x65eebd61, + 0x018fd0a8, 0x16f4c4eb, 0x2f79f82e, 0x3802ec6d, 0xe7bb23bc, + 0xf0c037ff, 0xc94d0b3a, 0xde361f79, 0xba5772b0, 0xad2c66f3, + 0x94a15a36, 0x83da4e75, 0xf0a3c3d5, 0xe7d8d796, 0xde55eb53, + 0xc92eff10, 0xad4f92d9, 0xba34869a, 0x83b9ba5f, 0x94c2ae1c, + 0x4b7b61cd, 0x5c00758e, 0x658d494b, 0x72f65d08, 0x169730c1, + 0x01ec2482, 0x38611847, 0x2f1a0c04, 0x6655004f, 0x712e140c, + 0x48a328c9, 0x5fd83c8a, 0x3bb95143, 0x2cc24500, 0x154f79c5, + 0x02346d86, 0xdd8da257, 0xcaf6b614, 0xf37b8ad1, 0xe4009e92, + 0x8061f35b, 0x971ae718, 0xae97dbdd, 0xb9eccf9e, 0xca95423e, + 0xddee567d, 0xe4636ab8, 0xf3187efb, 0x97791332, 0x80020771, + 0xb98f3bb4, 0xaef42ff7, 0x714de026, 0x6636f465, 0x5fbbc8a0, + 0x48c0dce3, 0x2ca1b12a, 0x3bdaa569, 0x025799ac, 0x152c8def, + 0xe4a482ec, 0xf3df96af, 0xca52aa6a, 0xdd29be29, 0xb948d3e0, + 0xae33c7a3, 0x97befb66, 0x80c5ef25, 0x5f7c20f4, 0x480734b7, + 0x718a0872, 0x66f11c31, 0x029071f8, 0x15eb65bb, 0x2c66597e, + 0x3b1d4d3d, 0x4864c09d, 0x5f1fd4de, 0x6692e81b, 0x71e9fc58, + 0x15889191, 0x02f385d2, 0x3b7eb917, 0x2c05ad54, 0xf3bc6285, + 0xe4c776c6, 0xdd4a4a03, 0xca315e40, 0xae503389, 0xb92b27ca, + 0x80a61b0f, 0x97dd0f4c, 0xb8c70348, 0xafbc170b, 0x96312bce, + 0x814a3f8d, 0xe52b5244, 0xf2504607, 0xcbdd7ac2, 0xdca66e81, + 0x031fa150, 0x1464b513, 0x2de989d6, 0x3a929d95, 0x5ef3f05c, + 0x4988e41f, 0x7005d8da, 0x677ecc99, 0x14074139, 0x037c557a, + 0x3af169bf, 0x2d8a7dfc, 0x49eb1035, 0x5e900476, 0x671d38b3, + 0x70662cf0, 0xafdfe321, 0xb8a4f762, 0x8129cba7, 0x9652dfe4, + 0xf233b22d, 0xe548a66e, 0xdcc59aab, 0xcbbe8ee8, 0x3a3681eb, + 0x2d4d95a8, 0x14c0a96d, 0x03bbbd2e, 0x67dad0e7, 0x70a1c4a4, + 0x492cf861, 0x5e57ec22, 0x81ee23f3, 0x969537b0, 0xaf180b75, + 0xb8631f36, 0xdc0272ff, 0xcb7966bc, 0xf2f45a79, 0xe58f4e3a, + 0x96f6c39a, 0x818dd7d9, 0xb800eb1c, 0xaf7bff5f, 0xcb1a9296, + 0xdc6186d5, 0xe5ecba10, 0xf297ae53, 0x2d2e6182, 0x3a5575c1, + 0x03d84904, 0x14a35d47, 0x70c2308e, 0x67b924cd, 0x5e341808, + 0x494f0c4b}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0x43147b1700000000, 0x8628f62e00000000, + 0xc53c8d3900000000, 0x0c51ec5d00000000, 0x4f45974a00000000, + 0x8a791a7300000000, 0xc96d616400000000, 0x18a2d8bb00000000, + 0x5bb6a3ac00000000, 0x9e8a2e9500000000, 0xdd9e558200000000, + 0x14f334e600000000, 0x57e74ff100000000, 0x92dbc2c800000000, + 0xd1cfb9df00000000, 0x7142c0ac00000000, 0x3256bbbb00000000, + 0xf76a368200000000, 0xb47e4d9500000000, 0x7d132cf100000000, + 0x3e0757e600000000, 0xfb3bdadf00000000, 0xb82fa1c800000000, + 0x69e0181700000000, 0x2af4630000000000, 0xefc8ee3900000000, + 0xacdc952e00000000, 0x65b1f44a00000000, 0x26a58f5d00000000, + 0xe399026400000000, 0xa08d797300000000, 0xa382f18200000000, + 0xe0968a9500000000, 0x25aa07ac00000000, 0x66be7cbb00000000, + 0xafd31ddf00000000, 0xecc766c800000000, 0x29fbebf100000000, + 0x6aef90e600000000, 0xbb20293900000000, 0xf834522e00000000, + 0x3d08df1700000000, 0x7e1ca40000000000, 0xb771c56400000000, + 0xf465be7300000000, 0x3159334a00000000, 0x724d485d00000000, + 0xd2c0312e00000000, 0x91d44a3900000000, 0x54e8c70000000000, + 0x17fcbc1700000000, 0xde91dd7300000000, 0x9d85a66400000000, + 0x58b92b5d00000000, 0x1bad504a00000000, 0xca62e99500000000, + 0x8976928200000000, 0x4c4a1fbb00000000, 0x0f5e64ac00000000, + 0xc63305c800000000, 0x85277edf00000000, 0x401bf3e600000000, + 0x030f88f100000000, 0x070392de00000000, 0x4417e9c900000000, + 0x812b64f000000000, 0xc23f1fe700000000, 0x0b527e8300000000, + 0x4846059400000000, 0x8d7a88ad00000000, 0xce6ef3ba00000000, + 0x1fa14a6500000000, 0x5cb5317200000000, 0x9989bc4b00000000, + 0xda9dc75c00000000, 0x13f0a63800000000, 0x50e4dd2f00000000, + 0x95d8501600000000, 0xd6cc2b0100000000, 0x7641527200000000, + 0x3555296500000000, 0xf069a45c00000000, 0xb37ddf4b00000000, + 0x7a10be2f00000000, 0x3904c53800000000, 0xfc38480100000000, + 0xbf2c331600000000, 0x6ee38ac900000000, 0x2df7f1de00000000, + 0xe8cb7ce700000000, 0xabdf07f000000000, 0x62b2669400000000, + 0x21a61d8300000000, 0xe49a90ba00000000, 0xa78eebad00000000, + 0xa481635c00000000, 0xe795184b00000000, 0x22a9957200000000, + 0x61bdee6500000000, 0xa8d08f0100000000, 0xebc4f41600000000, + 0x2ef8792f00000000, 0x6dec023800000000, 0xbc23bbe700000000, + 0xff37c0f000000000, 0x3a0b4dc900000000, 0x791f36de00000000, + 0xb07257ba00000000, 0xf3662cad00000000, 0x365aa19400000000, + 0x754eda8300000000, 0xd5c3a3f000000000, 0x96d7d8e700000000, + 0x53eb55de00000000, 0x10ff2ec900000000, 0xd9924fad00000000, + 0x9a8634ba00000000, 0x5fbab98300000000, 0x1caec29400000000, + 0xcd617b4b00000000, 0x8e75005c00000000, 0x4b498d6500000000, + 0x085df67200000000, 0xc130971600000000, 0x8224ec0100000000, + 0x4718613800000000, 0x040c1a2f00000000, 0x4f00556600000000, + 0x0c142e7100000000, 0xc928a34800000000, 0x8a3cd85f00000000, + 0x4351b93b00000000, 0x0045c22c00000000, 0xc5794f1500000000, + 0x866d340200000000, 0x57a28ddd00000000, 0x14b6f6ca00000000, + 0xd18a7bf300000000, 0x929e00e400000000, 0x5bf3618000000000, + 0x18e71a9700000000, 0xdddb97ae00000000, 0x9ecfecb900000000, + 0x3e4295ca00000000, 0x7d56eedd00000000, 0xb86a63e400000000, + 0xfb7e18f300000000, 0x3213799700000000, 0x7107028000000000, + 0xb43b8fb900000000, 0xf72ff4ae00000000, 0x26e04d7100000000, + 0x65f4366600000000, 0xa0c8bb5f00000000, 0xe3dcc04800000000, + 0x2ab1a12c00000000, 0x69a5da3b00000000, 0xac99570200000000, + 0xef8d2c1500000000, 0xec82a4e400000000, 0xaf96dff300000000, + 0x6aaa52ca00000000, 0x29be29dd00000000, 0xe0d348b900000000, + 0xa3c733ae00000000, 0x66fbbe9700000000, 0x25efc58000000000, + 0xf4207c5f00000000, 0xb734074800000000, 0x72088a7100000000, + 0x311cf16600000000, 0xf871900200000000, 0xbb65eb1500000000, + 0x7e59662c00000000, 0x3d4d1d3b00000000, 0x9dc0644800000000, + 0xded41f5f00000000, 0x1be8926600000000, 0x58fce97100000000, + 0x9191881500000000, 0xd285f30200000000, 0x17b97e3b00000000, + 0x54ad052c00000000, 0x8562bcf300000000, 0xc676c7e400000000, + 0x034a4add00000000, 0x405e31ca00000000, 0x893350ae00000000, + 0xca272bb900000000, 0x0f1ba68000000000, 0x4c0fdd9700000000, + 0x4803c7b800000000, 0x0b17bcaf00000000, 0xce2b319600000000, + 0x8d3f4a8100000000, 0x44522be500000000, 0x074650f200000000, + 0xc27addcb00000000, 0x816ea6dc00000000, 0x50a11f0300000000, + 0x13b5641400000000, 0xd689e92d00000000, 0x959d923a00000000, + 0x5cf0f35e00000000, 0x1fe4884900000000, 0xdad8057000000000, + 0x99cc7e6700000000, 0x3941071400000000, 0x7a557c0300000000, + 0xbf69f13a00000000, 0xfc7d8a2d00000000, 0x3510eb4900000000, + 0x7604905e00000000, 0xb3381d6700000000, 0xf02c667000000000, + 0x21e3dfaf00000000, 0x62f7a4b800000000, 0xa7cb298100000000, + 0xe4df529600000000, 0x2db233f200000000, 0x6ea648e500000000, + 0xab9ac5dc00000000, 0xe88ebecb00000000, 0xeb81363a00000000, + 0xa8954d2d00000000, 0x6da9c01400000000, 0x2ebdbb0300000000, + 0xe7d0da6700000000, 0xa4c4a17000000000, 0x61f82c4900000000, + 0x22ec575e00000000, 0xf323ee8100000000, 0xb037959600000000, + 0x750b18af00000000, 0x361f63b800000000, 0xff7202dc00000000, + 0xbc6679cb00000000, 0x795af4f200000000, 0x3a4e8fe500000000, + 0x9ac3f69600000000, 0xd9d78d8100000000, 0x1ceb00b800000000, + 0x5fff7baf00000000, 0x96921acb00000000, 0xd58661dc00000000, + 0x10baece500000000, 0x53ae97f200000000, 0x82612e2d00000000, + 0xc175553a00000000, 0x0449d80300000000, 0x475da31400000000, + 0x8e30c27000000000, 0xcd24b96700000000, 0x0818345e00000000, + 0x4b0c4f4900000000}, + {0x0000000000000000, 0x3e6bc2ef00000000, 0x3dd0f50400000000, + 0x03bb37eb00000000, 0x7aa0eb0900000000, 0x44cb29e600000000, + 0x47701e0d00000000, 0x791bdce200000000, 0xf440d71300000000, + 0xca2b15fc00000000, 0xc990221700000000, 0xf7fbe0f800000000, + 0x8ee03c1a00000000, 0xb08bfef500000000, 0xb330c91e00000000, + 0x8d5b0bf100000000, 0xe881ae2700000000, 0xd6ea6cc800000000, + 0xd5515b2300000000, 0xeb3a99cc00000000, 0x9221452e00000000, + 0xac4a87c100000000, 0xaff1b02a00000000, 0x919a72c500000000, + 0x1cc1793400000000, 0x22aabbdb00000000, 0x21118c3000000000, + 0x1f7a4edf00000000, 0x6661923d00000000, 0x580a50d200000000, + 0x5bb1673900000000, 0x65daa5d600000000, 0xd0035d4f00000000, + 0xee689fa000000000, 0xedd3a84b00000000, 0xd3b86aa400000000, + 0xaaa3b64600000000, 0x94c874a900000000, 0x9773434200000000, + 0xa91881ad00000000, 0x24438a5c00000000, 0x1a2848b300000000, + 0x19937f5800000000, 0x27f8bdb700000000, 0x5ee3615500000000, + 0x6088a3ba00000000, 0x6333945100000000, 0x5d5856be00000000, + 0x3882f36800000000, 0x06e9318700000000, 0x0552066c00000000, + 0x3b39c48300000000, 0x4222186100000000, 0x7c49da8e00000000, + 0x7ff2ed6500000000, 0x41992f8a00000000, 0xccc2247b00000000, + 0xf2a9e69400000000, 0xf112d17f00000000, 0xcf79139000000000, + 0xb662cf7200000000, 0x88090d9d00000000, 0x8bb23a7600000000, + 0xb5d9f89900000000, 0xa007ba9e00000000, 0x9e6c787100000000, + 0x9dd74f9a00000000, 0xa3bc8d7500000000, 0xdaa7519700000000, + 0xe4cc937800000000, 0xe777a49300000000, 0xd91c667c00000000, + 0x54476d8d00000000, 0x6a2caf6200000000, 0x6997988900000000, + 0x57fc5a6600000000, 0x2ee7868400000000, 0x108c446b00000000, + 0x1337738000000000, 0x2d5cb16f00000000, 0x488614b900000000, + 0x76edd65600000000, 0x7556e1bd00000000, 0x4b3d235200000000, + 0x3226ffb000000000, 0x0c4d3d5f00000000, 0x0ff60ab400000000, + 0x319dc85b00000000, 0xbcc6c3aa00000000, 0x82ad014500000000, + 0x811636ae00000000, 0xbf7df44100000000, 0xc66628a300000000, + 0xf80dea4c00000000, 0xfbb6dda700000000, 0xc5dd1f4800000000, + 0x7004e7d100000000, 0x4e6f253e00000000, 0x4dd412d500000000, + 0x73bfd03a00000000, 0x0aa40cd800000000, 0x34cfce3700000000, + 0x3774f9dc00000000, 0x091f3b3300000000, 0x844430c200000000, + 0xba2ff22d00000000, 0xb994c5c600000000, 0x87ff072900000000, + 0xfee4dbcb00000000, 0xc08f192400000000, 0xc3342ecf00000000, + 0xfd5fec2000000000, 0x988549f600000000, 0xa6ee8b1900000000, + 0xa555bcf200000000, 0x9b3e7e1d00000000, 0xe225a2ff00000000, + 0xdc4e601000000000, 0xdff557fb00000000, 0xe19e951400000000, + 0x6cc59ee500000000, 0x52ae5c0a00000000, 0x51156be100000000, + 0x6f7ea90e00000000, 0x166575ec00000000, 0x280eb70300000000, + 0x2bb580e800000000, 0x15de420700000000, 0x010905e600000000, + 0x3f62c70900000000, 0x3cd9f0e200000000, 0x02b2320d00000000, + 0x7ba9eeef00000000, 0x45c22c0000000000, 0x46791beb00000000, + 0x7812d90400000000, 0xf549d2f500000000, 0xcb22101a00000000, + 0xc89927f100000000, 0xf6f2e51e00000000, 0x8fe939fc00000000, + 0xb182fb1300000000, 0xb239ccf800000000, 0x8c520e1700000000, + 0xe988abc100000000, 0xd7e3692e00000000, 0xd4585ec500000000, + 0xea339c2a00000000, 0x932840c800000000, 0xad43822700000000, + 0xaef8b5cc00000000, 0x9093772300000000, 0x1dc87cd200000000, + 0x23a3be3d00000000, 0x201889d600000000, 0x1e734b3900000000, + 0x676897db00000000, 0x5903553400000000, 0x5ab862df00000000, + 0x64d3a03000000000, 0xd10a58a900000000, 0xef619a4600000000, + 0xecdaadad00000000, 0xd2b16f4200000000, 0xabaab3a000000000, + 0x95c1714f00000000, 0x967a46a400000000, 0xa811844b00000000, + 0x254a8fba00000000, 0x1b214d5500000000, 0x189a7abe00000000, + 0x26f1b85100000000, 0x5fea64b300000000, 0x6181a65c00000000, + 0x623a91b700000000, 0x5c51535800000000, 0x398bf68e00000000, + 0x07e0346100000000, 0x045b038a00000000, 0x3a30c16500000000, + 0x432b1d8700000000, 0x7d40df6800000000, 0x7efbe88300000000, + 0x40902a6c00000000, 0xcdcb219d00000000, 0xf3a0e37200000000, + 0xf01bd49900000000, 0xce70167600000000, 0xb76bca9400000000, + 0x8900087b00000000, 0x8abb3f9000000000, 0xb4d0fd7f00000000, + 0xa10ebf7800000000, 0x9f657d9700000000, 0x9cde4a7c00000000, + 0xa2b5889300000000, 0xdbae547100000000, 0xe5c5969e00000000, + 0xe67ea17500000000, 0xd815639a00000000, 0x554e686b00000000, + 0x6b25aa8400000000, 0x689e9d6f00000000, 0x56f55f8000000000, + 0x2fee836200000000, 0x1185418d00000000, 0x123e766600000000, + 0x2c55b48900000000, 0x498f115f00000000, 0x77e4d3b000000000, + 0x745fe45b00000000, 0x4a3426b400000000, 0x332ffa5600000000, + 0x0d4438b900000000, 0x0eff0f5200000000, 0x3094cdbd00000000, + 0xbdcfc64c00000000, 0x83a404a300000000, 0x801f334800000000, + 0xbe74f1a700000000, 0xc76f2d4500000000, 0xf904efaa00000000, + 0xfabfd84100000000, 0xc4d41aae00000000, 0x710de23700000000, + 0x4f6620d800000000, 0x4cdd173300000000, 0x72b6d5dc00000000, + 0x0bad093e00000000, 0x35c6cbd100000000, 0x367dfc3a00000000, + 0x08163ed500000000, 0x854d352400000000, 0xbb26f7cb00000000, + 0xb89dc02000000000, 0x86f602cf00000000, 0xffedde2d00000000, + 0xc1861cc200000000, 0xc23d2b2900000000, 0xfc56e9c600000000, + 0x998c4c1000000000, 0xa7e78eff00000000, 0xa45cb91400000000, + 0x9a377bfb00000000, 0xe32ca71900000000, 0xdd4765f600000000, + 0xdefc521d00000000, 0xe09790f200000000, 0x6dcc9b0300000000, + 0x53a759ec00000000, 0x501c6e0700000000, 0x6e77ace800000000, + 0x176c700a00000000, 0x2907b2e500000000, 0x2abc850e00000000, + 0x14d747e100000000}, + {0x0000000000000000, 0xc0df8ec100000000, 0xc1b96c5800000000, + 0x0166e29900000000, 0x8273d9b000000000, 0x42ac577100000000, + 0x43cab5e800000000, 0x83153b2900000000, 0x45e1c3ba00000000, + 0x853e4d7b00000000, 0x8458afe200000000, 0x4487212300000000, + 0xc7921a0a00000000, 0x074d94cb00000000, 0x062b765200000000, + 0xc6f4f89300000000, 0xcbc4f6ae00000000, 0x0b1b786f00000000, + 0x0a7d9af600000000, 0xcaa2143700000000, 0x49b72f1e00000000, + 0x8968a1df00000000, 0x880e434600000000, 0x48d1cd8700000000, + 0x8e25351400000000, 0x4efabbd500000000, 0x4f9c594c00000000, + 0x8f43d78d00000000, 0x0c56eca400000000, 0xcc89626500000000, + 0xcdef80fc00000000, 0x0d300e3d00000000, 0xd78f9c8600000000, + 0x1750124700000000, 0x1636f0de00000000, 0xd6e97e1f00000000, + 0x55fc453600000000, 0x9523cbf700000000, 0x9445296e00000000, + 0x549aa7af00000000, 0x926e5f3c00000000, 0x52b1d1fd00000000, + 0x53d7336400000000, 0x9308bda500000000, 0x101d868c00000000, + 0xd0c2084d00000000, 0xd1a4ead400000000, 0x117b641500000000, + 0x1c4b6a2800000000, 0xdc94e4e900000000, 0xddf2067000000000, + 0x1d2d88b100000000, 0x9e38b39800000000, 0x5ee73d5900000000, + 0x5f81dfc000000000, 0x9f5e510100000000, 0x59aaa99200000000, + 0x9975275300000000, 0x9813c5ca00000000, 0x58cc4b0b00000000, + 0xdbd9702200000000, 0x1b06fee300000000, 0x1a601c7a00000000, + 0xdabf92bb00000000, 0xef1948d600000000, 0x2fc6c61700000000, + 0x2ea0248e00000000, 0xee7faa4f00000000, 0x6d6a916600000000, + 0xadb51fa700000000, 0xacd3fd3e00000000, 0x6c0c73ff00000000, + 0xaaf88b6c00000000, 0x6a2705ad00000000, 0x6b41e73400000000, + 0xab9e69f500000000, 0x288b52dc00000000, 0xe854dc1d00000000, + 0xe9323e8400000000, 0x29edb04500000000, 0x24ddbe7800000000, + 0xe40230b900000000, 0xe564d22000000000, 0x25bb5ce100000000, + 0xa6ae67c800000000, 0x6671e90900000000, 0x67170b9000000000, + 0xa7c8855100000000, 0x613c7dc200000000, 0xa1e3f30300000000, + 0xa085119a00000000, 0x605a9f5b00000000, 0xe34fa47200000000, + 0x23902ab300000000, 0x22f6c82a00000000, 0xe22946eb00000000, + 0x3896d45000000000, 0xf8495a9100000000, 0xf92fb80800000000, + 0x39f036c900000000, 0xbae50de000000000, 0x7a3a832100000000, + 0x7b5c61b800000000, 0xbb83ef7900000000, 0x7d7717ea00000000, + 0xbda8992b00000000, 0xbcce7bb200000000, 0x7c11f57300000000, + 0xff04ce5a00000000, 0x3fdb409b00000000, 0x3ebda20200000000, + 0xfe622cc300000000, 0xf35222fe00000000, 0x338dac3f00000000, + 0x32eb4ea600000000, 0xf234c06700000000, 0x7121fb4e00000000, + 0xb1fe758f00000000, 0xb098971600000000, 0x704719d700000000, + 0xb6b3e14400000000, 0x766c6f8500000000, 0x770a8d1c00000000, + 0xb7d503dd00000000, 0x34c038f400000000, 0xf41fb63500000000, + 0xf57954ac00000000, 0x35a6da6d00000000, 0x9f35e17700000000, + 0x5fea6fb600000000, 0x5e8c8d2f00000000, 0x9e5303ee00000000, + 0x1d4638c700000000, 0xdd99b60600000000, 0xdcff549f00000000, + 0x1c20da5e00000000, 0xdad422cd00000000, 0x1a0bac0c00000000, + 0x1b6d4e9500000000, 0xdbb2c05400000000, 0x58a7fb7d00000000, + 0x987875bc00000000, 0x991e972500000000, 0x59c119e400000000, + 0x54f117d900000000, 0x942e991800000000, 0x95487b8100000000, + 0x5597f54000000000, 0xd682ce6900000000, 0x165d40a800000000, + 0x173ba23100000000, 0xd7e42cf000000000, 0x1110d46300000000, + 0xd1cf5aa200000000, 0xd0a9b83b00000000, 0x107636fa00000000, + 0x93630dd300000000, 0x53bc831200000000, 0x52da618b00000000, + 0x9205ef4a00000000, 0x48ba7df100000000, 0x8865f33000000000, + 0x890311a900000000, 0x49dc9f6800000000, 0xcac9a44100000000, + 0x0a162a8000000000, 0x0b70c81900000000, 0xcbaf46d800000000, + 0x0d5bbe4b00000000, 0xcd84308a00000000, 0xcce2d21300000000, + 0x0c3d5cd200000000, 0x8f2867fb00000000, 0x4ff7e93a00000000, + 0x4e910ba300000000, 0x8e4e856200000000, 0x837e8b5f00000000, + 0x43a1059e00000000, 0x42c7e70700000000, 0x821869c600000000, + 0x010d52ef00000000, 0xc1d2dc2e00000000, 0xc0b43eb700000000, + 0x006bb07600000000, 0xc69f48e500000000, 0x0640c62400000000, + 0x072624bd00000000, 0xc7f9aa7c00000000, 0x44ec915500000000, + 0x84331f9400000000, 0x8555fd0d00000000, 0x458a73cc00000000, + 0x702ca9a100000000, 0xb0f3276000000000, 0xb195c5f900000000, + 0x714a4b3800000000, 0xf25f701100000000, 0x3280fed000000000, + 0x33e61c4900000000, 0xf339928800000000, 0x35cd6a1b00000000, + 0xf512e4da00000000, 0xf474064300000000, 0x34ab888200000000, + 0xb7beb3ab00000000, 0x77613d6a00000000, 0x7607dff300000000, + 0xb6d8513200000000, 0xbbe85f0f00000000, 0x7b37d1ce00000000, + 0x7a51335700000000, 0xba8ebd9600000000, 0x399b86bf00000000, + 0xf944087e00000000, 0xf822eae700000000, 0x38fd642600000000, + 0xfe099cb500000000, 0x3ed6127400000000, 0x3fb0f0ed00000000, + 0xff6f7e2c00000000, 0x7c7a450500000000, 0xbca5cbc400000000, + 0xbdc3295d00000000, 0x7d1ca79c00000000, 0xa7a3352700000000, + 0x677cbbe600000000, 0x661a597f00000000, 0xa6c5d7be00000000, + 0x25d0ec9700000000, 0xe50f625600000000, 0xe46980cf00000000, + 0x24b60e0e00000000, 0xe242f69d00000000, 0x229d785c00000000, + 0x23fb9ac500000000, 0xe324140400000000, 0x60312f2d00000000, + 0xa0eea1ec00000000, 0xa188437500000000, 0x6157cdb400000000, + 0x6c67c38900000000, 0xacb84d4800000000, 0xaddeafd100000000, + 0x6d01211000000000, 0xee141a3900000000, 0x2ecb94f800000000, + 0x2fad766100000000, 0xef72f8a000000000, 0x2986003300000000, + 0xe9598ef200000000, 0xe83f6c6b00000000, 0x28e0e2aa00000000, + 0xabf5d98300000000, 0x6b2a574200000000, 0x6a4cb5db00000000, + 0xaa933b1a00000000}, + {0x0000000000000000, 0x6f4ca59b00000000, 0x9f9e3bec00000000, + 0xf0d29e7700000000, 0x7f3b060300000000, 0x1077a39800000000, + 0xe0a53def00000000, 0x8fe9987400000000, 0xfe760c0600000000, + 0x913aa99d00000000, 0x61e837ea00000000, 0x0ea4927100000000, + 0x814d0a0500000000, 0xee01af9e00000000, 0x1ed331e900000000, + 0x719f947200000000, 0xfced180c00000000, 0x93a1bd9700000000, + 0x637323e000000000, 0x0c3f867b00000000, 0x83d61e0f00000000, + 0xec9abb9400000000, 0x1c4825e300000000, 0x7304807800000000, + 0x029b140a00000000, 0x6dd7b19100000000, 0x9d052fe600000000, + 0xf2498a7d00000000, 0x7da0120900000000, 0x12ecb79200000000, + 0xe23e29e500000000, 0x8d728c7e00000000, 0xf8db311800000000, + 0x9797948300000000, 0x67450af400000000, 0x0809af6f00000000, + 0x87e0371b00000000, 0xe8ac928000000000, 0x187e0cf700000000, + 0x7732a96c00000000, 0x06ad3d1e00000000, 0x69e1988500000000, + 0x993306f200000000, 0xf67fa36900000000, 0x79963b1d00000000, + 0x16da9e8600000000, 0xe60800f100000000, 0x8944a56a00000000, + 0x0436291400000000, 0x6b7a8c8f00000000, 0x9ba812f800000000, + 0xf4e4b76300000000, 0x7b0d2f1700000000, 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0x124adb2000000000, 0xc96fba5c00000000, 0xbf8eb5c100000000, + 0x493a219700000000, 0x3fdb2e0a00000000, 0xe4fe4f7600000000, + 0x921f40eb00000000, 0x52b58d8e00000000, 0x2454821300000000, + 0xff71e36f00000000, 0x8990ecf200000000, 0xcb60ae0f00000000, + 0xbd81a19200000000, 0x66a4c0ee00000000, 0x1045cf7300000000, + 0xd0ef021600000000, 0xa60e0d8b00000000, 0x7d2b6cf700000000, + 0x0bca636a00000000, 0xfd7ef73c00000000, 0x8b9ff8a100000000, + 0x50ba99dd00000000, 0x265b964000000000, 0xe6f15b2500000000, + 0x901054b800000000, 0x4b3535c400000000, 0x3dd43a5900000000, + 0xa75c1c6900000000, 0xd1bd13f400000000, 0x0a98728800000000, + 0x7c797d1500000000, 0xbcd3b07000000000, 0xca32bfed00000000, + 0x1117de9100000000, 0x67f6d10c00000000, 0x9142455a00000000, + 0xe7a34ac700000000, 0x3c862bbb00000000, 0x4a67242600000000, + 0x8acde94300000000, 0xfc2ce6de00000000, 0x270987a200000000, + 0x51e8883f00000000}, + {0x0000000000000000, 0xe8dbfbb900000000, 0x91b186a800000000, + 0x796a7d1100000000, 0x63657c8a00000000, 0x8bbe873300000000, + 0xf2d4fa2200000000, 0x1a0f019b00000000, 0x87cc89cf00000000, + 0x6f17727600000000, 0x167d0f6700000000, 0xfea6f4de00000000, + 0xe4a9f54500000000, 0x0c720efc00000000, 0x751873ed00000000, + 0x9dc3885400000000, 0x4f9f624400000000, 0xa74499fd00000000, + 0xde2ee4ec00000000, 0x36f51f5500000000, 0x2cfa1ece00000000, + 0xc421e57700000000, 0xbd4b986600000000, 0x559063df00000000, + 0xc853eb8b00000000, 0x2088103200000000, 0x59e26d2300000000, + 0xb139969a00000000, 0xab36970100000000, 0x43ed6cb800000000, + 0x3a8711a900000000, 0xd25cea1000000000, 0x9e3ec58800000000, + 0x76e53e3100000000, 0x0f8f432000000000, 0xe754b89900000000, + 0xfd5bb90200000000, 0x158042bb00000000, 0x6cea3faa00000000, + 0x8431c41300000000, 0x19f24c4700000000, 0xf129b7fe00000000, + 0x8843caef00000000, 0x6098315600000000, 0x7a9730cd00000000, + 0x924ccb7400000000, 0xeb26b66500000000, 0x03fd4ddc00000000, + 0xd1a1a7cc00000000, 0x397a5c7500000000, 0x4010216400000000, + 0xa8cbdadd00000000, 0xb2c4db4600000000, 0x5a1f20ff00000000, + 0x23755dee00000000, 0xcbaea65700000000, 0x566d2e0300000000, + 0xbeb6d5ba00000000, 0xc7dca8ab00000000, 0x2f07531200000000, + 0x3508528900000000, 0xddd3a93000000000, 0xa4b9d42100000000, + 0x4c622f9800000000, 0x7d7bfbca00000000, 0x95a0007300000000, + 0xecca7d6200000000, 0x041186db00000000, 0x1e1e874000000000, + 0xf6c57cf900000000, 0x8faf01e800000000, 0x6774fa5100000000, + 0xfab7720500000000, 0x126c89bc00000000, 0x6b06f4ad00000000, + 0x83dd0f1400000000, 0x99d20e8f00000000, 0x7109f53600000000, + 0x0863882700000000, 0xe0b8739e00000000, 0x32e4998e00000000, + 0xda3f623700000000, 0xa3551f2600000000, 0x4b8ee49f00000000, + 0x5181e50400000000, 0xb95a1ebd00000000, 0xc03063ac00000000, + 0x28eb981500000000, 0xb528104100000000, 0x5df3ebf800000000, + 0x249996e900000000, 0xcc426d5000000000, 0xd64d6ccb00000000, + 0x3e96977200000000, 0x47fcea6300000000, 0xaf2711da00000000, + 0xe3453e4200000000, 0x0b9ec5fb00000000, 0x72f4b8ea00000000, + 0x9a2f435300000000, 0x802042c800000000, 0x68fbb97100000000, + 0x1191c46000000000, 0xf94a3fd900000000, 0x6489b78d00000000, + 0x8c524c3400000000, 0xf538312500000000, 0x1de3ca9c00000000, + 0x07eccb0700000000, 0xef3730be00000000, 0x965d4daf00000000, + 0x7e86b61600000000, 0xacda5c0600000000, 0x4401a7bf00000000, + 0x3d6bdaae00000000, 0xd5b0211700000000, 0xcfbf208c00000000, + 0x2764db3500000000, 0x5e0ea62400000000, 0xb6d55d9d00000000, + 0x2b16d5c900000000, 0xc3cd2e7000000000, 0xbaa7536100000000, + 0x527ca8d800000000, 0x4873a94300000000, 0xa0a852fa00000000, + 0xd9c22feb00000000, 0x3119d45200000000, 0xbbf0874e00000000, + 0x532b7cf700000000, 0x2a4101e600000000, 0xc29afa5f00000000, + 0xd895fbc400000000, 0x304e007d00000000, 0x49247d6c00000000, + 0xa1ff86d500000000, 0x3c3c0e8100000000, 0xd4e7f53800000000, + 0xad8d882900000000, 0x4556739000000000, 0x5f59720b00000000, + 0xb78289b200000000, 0xcee8f4a300000000, 0x26330f1a00000000, + 0xf46fe50a00000000, 0x1cb41eb300000000, 0x65de63a200000000, + 0x8d05981b00000000, 0x970a998000000000, 0x7fd1623900000000, + 0x06bb1f2800000000, 0xee60e49100000000, 0x73a36cc500000000, + 0x9b78977c00000000, 0xe212ea6d00000000, 0x0ac911d400000000, + 0x10c6104f00000000, 0xf81debf600000000, 0x817796e700000000, + 0x69ac6d5e00000000, 0x25ce42c600000000, 0xcd15b97f00000000, + 0xb47fc46e00000000, 0x5ca43fd700000000, 0x46ab3e4c00000000, + 0xae70c5f500000000, 0xd71ab8e400000000, 0x3fc1435d00000000, + 0xa202cb0900000000, 0x4ad930b000000000, 0x33b34da100000000, + 0xdb68b61800000000, 0xc167b78300000000, 0x29bc4c3a00000000, + 0x50d6312b00000000, 0xb80dca9200000000, 0x6a51208200000000, + 0x828adb3b00000000, 0xfbe0a62a00000000, 0x133b5d9300000000, + 0x09345c0800000000, 0xe1efa7b100000000, 0x9885daa000000000, + 0x705e211900000000, 0xed9da94d00000000, 0x054652f400000000, + 0x7c2c2fe500000000, 0x94f7d45c00000000, 0x8ef8d5c700000000, + 0x66232e7e00000000, 0x1f49536f00000000, 0xf792a8d600000000, + 0xc68b7c8400000000, 0x2e50873d00000000, 0x573afa2c00000000, + 0xbfe1019500000000, 0xa5ee000e00000000, 0x4d35fbb700000000, + 0x345f86a600000000, 0xdc847d1f00000000, 0x4147f54b00000000, + 0xa99c0ef200000000, 0xd0f673e300000000, 0x382d885a00000000, + 0x222289c100000000, 0xcaf9727800000000, 0xb3930f6900000000, + 0x5b48f4d000000000, 0x89141ec000000000, 0x61cfe57900000000, + 0x18a5986800000000, 0xf07e63d100000000, 0xea71624a00000000, + 0x02aa99f300000000, 0x7bc0e4e200000000, 0x931b1f5b00000000, + 0x0ed8970f00000000, 0xe6036cb600000000, 0x9f6911a700000000, + 0x77b2ea1e00000000, 0x6dbdeb8500000000, 0x8566103c00000000, + 0xfc0c6d2d00000000, 0x14d7969400000000, 0x58b5b90c00000000, + 0xb06e42b500000000, 0xc9043fa400000000, 0x21dfc41d00000000, + 0x3bd0c58600000000, 0xd30b3e3f00000000, 0xaa61432e00000000, + 0x42bab89700000000, 0xdf7930c300000000, 0x37a2cb7a00000000, + 0x4ec8b66b00000000, 0xa6134dd200000000, 0xbc1c4c4900000000, + 0x54c7b7f000000000, 0x2dadcae100000000, 0xc576315800000000, + 0x172adb4800000000, 0xfff120f100000000, 0x869b5de000000000, + 0x6e40a65900000000, 0x744fa7c200000000, 0x9c945c7b00000000, + 0xe5fe216a00000000, 0x0d25dad300000000, 0x90e6528700000000, + 0x783da93e00000000, 0x0157d42f00000000, 0xe98c2f9600000000, + 0xf3832e0d00000000, 0x1b58d5b400000000, 0x6232a8a500000000, + 0x8ae9531c00000000}, + {0x0000000000000000, 0x919168ae00000000, 0x6325a08700000000, + 0xf2b4c82900000000, 0x874c31d400000000, 0x16dd597a00000000, + 0xe469915300000000, 0x75f8f9fd00000000, 0x4f9f137300000000, + 0xde0e7bdd00000000, 0x2cbab3f400000000, 0xbd2bdb5a00000000, + 0xc8d322a700000000, 0x59424a0900000000, 0xabf6822000000000, + 0x3a67ea8e00000000, 0x9e3e27e600000000, 0x0faf4f4800000000, + 0xfd1b876100000000, 0x6c8aefcf00000000, 0x1972163200000000, + 0x88e37e9c00000000, 0x7a57b6b500000000, 0xebc6de1b00000000, + 0xd1a1349500000000, 0x40305c3b00000000, 0xb284941200000000, + 0x2315fcbc00000000, 0x56ed054100000000, 0xc77c6def00000000, + 0x35c8a5c600000000, 0xa459cd6800000000, 0x7d7b3f1700000000, + 0xecea57b900000000, 0x1e5e9f9000000000, 0x8fcff73e00000000, + 0xfa370ec300000000, 0x6ba6666d00000000, 0x9912ae4400000000, + 0x0883c6ea00000000, 0x32e42c6400000000, 0xa37544ca00000000, + 0x51c18ce300000000, 0xc050e44d00000000, 0xb5a81db000000000, + 0x2439751e00000000, 0xd68dbd3700000000, 0x471cd59900000000, + 0xe34518f100000000, 0x72d4705f00000000, 0x8060b87600000000, + 0x11f1d0d800000000, 0x6409292500000000, 0xf598418b00000000, + 0x072c89a200000000, 0x96bde10c00000000, 0xacda0b8200000000, + 0x3d4b632c00000000, 0xcfffab0500000000, 0x5e6ec3ab00000000, + 0x2b963a5600000000, 0xba0752f800000000, 0x48b39ad100000000, + 0xd922f27f00000000, 0xfaf67e2e00000000, 0x6b67168000000000, + 0x99d3dea900000000, 0x0842b60700000000, 0x7dba4ffa00000000, + 0xec2b275400000000, 0x1e9fef7d00000000, 0x8f0e87d300000000, + 0xb5696d5d00000000, 0x24f805f300000000, 0xd64ccdda00000000, + 0x47dda57400000000, 0x32255c8900000000, 0xa3b4342700000000, + 0x5100fc0e00000000, 0xc09194a000000000, 0x64c859c800000000, + 0xf559316600000000, 0x07edf94f00000000, 0x967c91e100000000, + 0xe384681c00000000, 0x721500b200000000, 0x80a1c89b00000000, + 0x1130a03500000000, 0x2b574abb00000000, 0xbac6221500000000, + 0x4872ea3c00000000, 0xd9e3829200000000, 0xac1b7b6f00000000, + 0x3d8a13c100000000, 0xcf3edbe800000000, 0x5eafb34600000000, + 0x878d413900000000, 0x161c299700000000, 0xe4a8e1be00000000, + 0x7539891000000000, 0x00c170ed00000000, 0x9150184300000000, + 0x63e4d06a00000000, 0xf275b8c400000000, 0xc812524a00000000, + 0x59833ae400000000, 0xab37f2cd00000000, 0x3aa69a6300000000, + 0x4f5e639e00000000, 0xdecf0b3000000000, 0x2c7bc31900000000, + 0xbdeaabb700000000, 0x19b366df00000000, 0x88220e7100000000, + 0x7a96c65800000000, 0xeb07aef600000000, 0x9eff570b00000000, + 0x0f6e3fa500000000, 0xfddaf78c00000000, 0x6c4b9f2200000000, + 0x562c75ac00000000, 0xc7bd1d0200000000, 0x3509d52b00000000, + 0xa498bd8500000000, 0xd160447800000000, 0x40f12cd600000000, + 0xb245e4ff00000000, 0x23d48c5100000000, 0xf4edfd5c00000000, + 0x657c95f200000000, 0x97c85ddb00000000, 0x0659357500000000, + 0x73a1cc8800000000, 0xe230a42600000000, 0x10846c0f00000000, + 0x811504a100000000, 0xbb72ee2f00000000, 0x2ae3868100000000, + 0xd8574ea800000000, 0x49c6260600000000, 0x3c3edffb00000000, + 0xadafb75500000000, 0x5f1b7f7c00000000, 0xce8a17d200000000, + 0x6ad3daba00000000, 0xfb42b21400000000, 0x09f67a3d00000000, + 0x9867129300000000, 0xed9feb6e00000000, 0x7c0e83c000000000, + 0x8eba4be900000000, 0x1f2b234700000000, 0x254cc9c900000000, + 0xb4dda16700000000, 0x4669694e00000000, 0xd7f801e000000000, + 0xa200f81d00000000, 0x339190b300000000, 0xc125589a00000000, + 0x50b4303400000000, 0x8996c24b00000000, 0x1807aae500000000, + 0xeab362cc00000000, 0x7b220a6200000000, 0x0edaf39f00000000, + 0x9f4b9b3100000000, 0x6dff531800000000, 0xfc6e3bb600000000, + 0xc609d13800000000, 0x5798b99600000000, 0xa52c71bf00000000, + 0x34bd191100000000, 0x4145e0ec00000000, 0xd0d4884200000000, + 0x2260406b00000000, 0xb3f128c500000000, 0x17a8e5ad00000000, + 0x86398d0300000000, 0x748d452a00000000, 0xe51c2d8400000000, + 0x90e4d47900000000, 0x0175bcd700000000, 0xf3c174fe00000000, + 0x62501c5000000000, 0x5837f6de00000000, 0xc9a69e7000000000, + 0x3b12565900000000, 0xaa833ef700000000, 0xdf7bc70a00000000, + 0x4eeaafa400000000, 0xbc5e678d00000000, 0x2dcf0f2300000000, + 0x0e1b837200000000, 0x9f8aebdc00000000, 0x6d3e23f500000000, + 0xfcaf4b5b00000000, 0x8957b2a600000000, 0x18c6da0800000000, + 0xea72122100000000, 0x7be37a8f00000000, 0x4184900100000000, + 0xd015f8af00000000, 0x22a1308600000000, 0xb330582800000000, + 0xc6c8a1d500000000, 0x5759c97b00000000, 0xa5ed015200000000, + 0x347c69fc00000000, 0x9025a49400000000, 0x01b4cc3a00000000, + 0xf300041300000000, 0x62916cbd00000000, 0x1769954000000000, + 0x86f8fdee00000000, 0x744c35c700000000, 0xe5dd5d6900000000, + 0xdfbab7e700000000, 0x4e2bdf4900000000, 0xbc9f176000000000, + 0x2d0e7fce00000000, 0x58f6863300000000, 0xc967ee9d00000000, + 0x3bd326b400000000, 0xaa424e1a00000000, 0x7360bc6500000000, + 0xe2f1d4cb00000000, 0x10451ce200000000, 0x81d4744c00000000, + 0xf42c8db100000000, 0x65bde51f00000000, 0x97092d3600000000, + 0x0698459800000000, 0x3cffaf1600000000, 0xad6ec7b800000000, + 0x5fda0f9100000000, 0xce4b673f00000000, 0xbbb39ec200000000, + 0x2a22f66c00000000, 0xd8963e4500000000, 0x490756eb00000000, + 0xed5e9b8300000000, 0x7ccff32d00000000, 0x8e7b3b0400000000, + 0x1fea53aa00000000, 0x6a12aa5700000000, 0xfb83c2f900000000, + 0x09370ad000000000, 0x98a6627e00000000, 0xa2c188f000000000, + 0x3350e05e00000000, 0xc1e4287700000000, 0x507540d900000000, + 0x258db92400000000, 0xb41cd18a00000000, 0x46a819a300000000, + 0xd739710d00000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xccaa009e, 0x4225077d, 0x8e8f07e3, 0x844a0efa, + 0x48e00e64, 0xc66f0987, 0x0ac50919, 0xd3e51bb5, 0x1f4f1b2b, + 0x91c01cc8, 0x5d6a1c56, 0x57af154f, 0x9b0515d1, 0x158a1232, + 0xd92012ac, 0x7cbb312b, 0xb01131b5, 0x3e9e3656, 0xf23436c8, + 0xf8f13fd1, 0x345b3f4f, 0xbad438ac, 0x767e3832, 0xaf5e2a9e, + 0x63f42a00, 0xed7b2de3, 0x21d12d7d, 0x2b142464, 0xe7be24fa, + 0x69312319, 0xa59b2387, 0xf9766256, 0x35dc62c8, 0xbb53652b, + 0x77f965b5, 0x7d3c6cac, 0xb1966c32, 0x3f196bd1, 0xf3b36b4f, + 0x2a9379e3, 0xe639797d, 0x68b67e9e, 0xa41c7e00, 0xaed97719, + 0x62737787, 0xecfc7064, 0x205670fa, 0x85cd537d, 0x496753e3, + 0xc7e85400, 0x0b42549e, 0x01875d87, 0xcd2d5d19, 0x43a25afa, + 0x8f085a64, 0x562848c8, 0x9a824856, 0x140d4fb5, 0xd8a74f2b, + 0xd2624632, 0x1ec846ac, 0x9047414f, 0x5ced41d1, 0x299dc2ed, + 0xe537c273, 0x6bb8c590, 0xa712c50e, 0xadd7cc17, 0x617dcc89, + 0xeff2cb6a, 0x2358cbf4, 0xfa78d958, 0x36d2d9c6, 0xb85dde25, + 0x74f7debb, 0x7e32d7a2, 0xb298d73c, 0x3c17d0df, 0xf0bdd041, + 0x5526f3c6, 0x998cf358, 0x1703f4bb, 0xdba9f425, 0xd16cfd3c, + 0x1dc6fda2, 0x9349fa41, 0x5fe3fadf, 0x86c3e873, 0x4a69e8ed, + 0xc4e6ef0e, 0x084cef90, 0x0289e689, 0xce23e617, 0x40ace1f4, + 0x8c06e16a, 0xd0eba0bb, 0x1c41a025, 0x92cea7c6, 0x5e64a758, + 0x54a1ae41, 0x980baedf, 0x1684a93c, 0xda2ea9a2, 0x030ebb0e, + 0xcfa4bb90, 0x412bbc73, 0x8d81bced, 0x8744b5f4, 0x4beeb56a, + 0xc561b289, 0x09cbb217, 0xac509190, 0x60fa910e, 0xee7596ed, + 0x22df9673, 0x281a9f6a, 0xe4b09ff4, 0x6a3f9817, 0xa6959889, + 0x7fb58a25, 0xb31f8abb, 0x3d908d58, 0xf13a8dc6, 0xfbff84df, + 0x37558441, 0xb9da83a2, 0x7570833c, 0x533b85da, 0x9f918544, + 0x111e82a7, 0xddb48239, 0xd7718b20, 0x1bdb8bbe, 0x95548c5d, + 0x59fe8cc3, 0x80de9e6f, 0x4c749ef1, 0xc2fb9912, 0x0e51998c, + 0x04949095, 0xc83e900b, 0x46b197e8, 0x8a1b9776, 0x2f80b4f1, + 0xe32ab46f, 0x6da5b38c, 0xa10fb312, 0xabcaba0b, 0x6760ba95, + 0xe9efbd76, 0x2545bde8, 0xfc65af44, 0x30cfafda, 0xbe40a839, + 0x72eaa8a7, 0x782fa1be, 0xb485a120, 0x3a0aa6c3, 0xf6a0a65d, + 0xaa4de78c, 0x66e7e712, 0xe868e0f1, 0x24c2e06f, 0x2e07e976, + 0xe2ade9e8, 0x6c22ee0b, 0xa088ee95, 0x79a8fc39, 0xb502fca7, + 0x3b8dfb44, 0xf727fbda, 0xfde2f2c3, 0x3148f25d, 0xbfc7f5be, + 0x736df520, 0xd6f6d6a7, 0x1a5cd639, 0x94d3d1da, 0x5879d144, + 0x52bcd85d, 0x9e16d8c3, 0x1099df20, 0xdc33dfbe, 0x0513cd12, + 0xc9b9cd8c, 0x4736ca6f, 0x8b9ccaf1, 0x8159c3e8, 0x4df3c376, + 0xc37cc495, 0x0fd6c40b, 0x7aa64737, 0xb60c47a9, 0x3883404a, + 0xf42940d4, 0xfeec49cd, 0x32464953, 0xbcc94eb0, 0x70634e2e, + 0xa9435c82, 0x65e95c1c, 0xeb665bff, 0x27cc5b61, 0x2d095278, + 0xe1a352e6, 0x6f2c5505, 0xa386559b, 0x061d761c, 0xcab77682, + 0x44387161, 0x889271ff, 0x825778e6, 0x4efd7878, 0xc0727f9b, + 0x0cd87f05, 0xd5f86da9, 0x19526d37, 0x97dd6ad4, 0x5b776a4a, + 0x51b26353, 0x9d1863cd, 0x1397642e, 0xdf3d64b0, 0x83d02561, + 0x4f7a25ff, 0xc1f5221c, 0x0d5f2282, 0x079a2b9b, 0xcb302b05, + 0x45bf2ce6, 0x89152c78, 0x50353ed4, 0x9c9f3e4a, 0x121039a9, + 0xdeba3937, 0xd47f302e, 0x18d530b0, 0x965a3753, 0x5af037cd, + 0xff6b144a, 0x33c114d4, 0xbd4e1337, 0x71e413a9, 0x7b211ab0, + 0xb78b1a2e, 0x39041dcd, 0xf5ae1d53, 0x2c8e0fff, 0xe0240f61, + 0x6eab0882, 0xa201081c, 0xa8c40105, 0x646e019b, 0xeae10678, + 0x264b06e6}, + {0x00000000, 0xa6770bb4, 0x979f1129, 0x31e81a9d, 0xf44f2413, + 0x52382fa7, 0x63d0353a, 0xc5a73e8e, 0x33ef4e67, 0x959845d3, + 0xa4705f4e, 0x020754fa, 0xc7a06a74, 0x61d761c0, 0x503f7b5d, + 0xf64870e9, 0x67de9cce, 0xc1a9977a, 0xf0418de7, 0x56368653, + 0x9391b8dd, 0x35e6b369, 0x040ea9f4, 0xa279a240, 0x5431d2a9, + 0xf246d91d, 0xc3aec380, 0x65d9c834, 0xa07ef6ba, 0x0609fd0e, + 0x37e1e793, 0x9196ec27, 0xcfbd399c, 0x69ca3228, 0x582228b5, + 0xfe552301, 0x3bf21d8f, 0x9d85163b, 0xac6d0ca6, 0x0a1a0712, + 0xfc5277fb, 0x5a257c4f, 0x6bcd66d2, 0xcdba6d66, 0x081d53e8, + 0xae6a585c, 0x9f8242c1, 0x39f54975, 0xa863a552, 0x0e14aee6, + 0x3ffcb47b, 0x998bbfcf, 0x5c2c8141, 0xfa5b8af5, 0xcbb39068, + 0x6dc49bdc, 0x9b8ceb35, 0x3dfbe081, 0x0c13fa1c, 0xaa64f1a8, + 0x6fc3cf26, 0xc9b4c492, 0xf85cde0f, 0x5e2bd5bb, 0x440b7579, + 0xe27c7ecd, 0xd3946450, 0x75e36fe4, 0xb044516a, 0x16335ade, + 0x27db4043, 0x81ac4bf7, 0x77e43b1e, 0xd19330aa, 0xe07b2a37, + 0x460c2183, 0x83ab1f0d, 0x25dc14b9, 0x14340e24, 0xb2430590, + 0x23d5e9b7, 0x85a2e203, 0xb44af89e, 0x123df32a, 0xd79acda4, + 0x71edc610, 0x4005dc8d, 0xe672d739, 0x103aa7d0, 0xb64dac64, + 0x87a5b6f9, 0x21d2bd4d, 0xe47583c3, 0x42028877, 0x73ea92ea, + 0xd59d995e, 0x8bb64ce5, 0x2dc14751, 0x1c295dcc, 0xba5e5678, + 0x7ff968f6, 0xd98e6342, 0xe86679df, 0x4e11726b, 0xb8590282, + 0x1e2e0936, 0x2fc613ab, 0x89b1181f, 0x4c162691, 0xea612d25, + 0xdb8937b8, 0x7dfe3c0c, 0xec68d02b, 0x4a1fdb9f, 0x7bf7c102, + 0xdd80cab6, 0x1827f438, 0xbe50ff8c, 0x8fb8e511, 0x29cfeea5, + 0xdf879e4c, 0x79f095f8, 0x48188f65, 0xee6f84d1, 0x2bc8ba5f, + 0x8dbfb1eb, 0xbc57ab76, 0x1a20a0c2, 0x8816eaf2, 0x2e61e146, + 0x1f89fbdb, 0xb9fef06f, 0x7c59cee1, 0xda2ec555, 0xebc6dfc8, + 0x4db1d47c, 0xbbf9a495, 0x1d8eaf21, 0x2c66b5bc, 0x8a11be08, + 0x4fb68086, 0xe9c18b32, 0xd82991af, 0x7e5e9a1b, 0xefc8763c, + 0x49bf7d88, 0x78576715, 0xde206ca1, 0x1b87522f, 0xbdf0599b, + 0x8c184306, 0x2a6f48b2, 0xdc27385b, 0x7a5033ef, 0x4bb82972, + 0xedcf22c6, 0x28681c48, 0x8e1f17fc, 0xbff70d61, 0x198006d5, + 0x47abd36e, 0xe1dcd8da, 0xd034c247, 0x7643c9f3, 0xb3e4f77d, + 0x1593fcc9, 0x247be654, 0x820cede0, 0x74449d09, 0xd23396bd, + 0xe3db8c20, 0x45ac8794, 0x800bb91a, 0x267cb2ae, 0x1794a833, + 0xb1e3a387, 0x20754fa0, 0x86024414, 0xb7ea5e89, 0x119d553d, + 0xd43a6bb3, 0x724d6007, 0x43a57a9a, 0xe5d2712e, 0x139a01c7, + 0xb5ed0a73, 0x840510ee, 0x22721b5a, 0xe7d525d4, 0x41a22e60, + 0x704a34fd, 0xd63d3f49, 0xcc1d9f8b, 0x6a6a943f, 0x5b828ea2, + 0xfdf58516, 0x3852bb98, 0x9e25b02c, 0xafcdaab1, 0x09baa105, + 0xfff2d1ec, 0x5985da58, 0x686dc0c5, 0xce1acb71, 0x0bbdf5ff, + 0xadcafe4b, 0x9c22e4d6, 0x3a55ef62, 0xabc30345, 0x0db408f1, + 0x3c5c126c, 0x9a2b19d8, 0x5f8c2756, 0xf9fb2ce2, 0xc813367f, + 0x6e643dcb, 0x982c4d22, 0x3e5b4696, 0x0fb35c0b, 0xa9c457bf, + 0x6c636931, 0xca146285, 0xfbfc7818, 0x5d8b73ac, 0x03a0a617, + 0xa5d7ada3, 0x943fb73e, 0x3248bc8a, 0xf7ef8204, 0x519889b0, + 0x6070932d, 0xc6079899, 0x304fe870, 0x9638e3c4, 0xa7d0f959, + 0x01a7f2ed, 0xc400cc63, 0x6277c7d7, 0x539fdd4a, 0xf5e8d6fe, + 0x647e3ad9, 0xc209316d, 0xf3e12bf0, 0x55962044, 0x90311eca, + 0x3646157e, 0x07ae0fe3, 0xa1d90457, 0x579174be, 0xf1e67f0a, + 0xc00e6597, 0x66796e23, 0xa3de50ad, 0x05a95b19, 0x34414184, + 0x92364a30}, + {0x00000000, 0xcb5cd3a5, 0x4dc8a10b, 0x869472ae, 0x9b914216, + 0x50cd91b3, 0xd659e31d, 0x1d0530b8, 0xec53826d, 0x270f51c8, + 0xa19b2366, 0x6ac7f0c3, 0x77c2c07b, 0xbc9e13de, 0x3a0a6170, + 0xf156b2d5, 0x03d6029b, 0xc88ad13e, 0x4e1ea390, 0x85427035, + 0x9847408d, 0x531b9328, 0xd58fe186, 0x1ed33223, 0xef8580f6, + 0x24d95353, 0xa24d21fd, 0x6911f258, 0x7414c2e0, 0xbf481145, + 0x39dc63eb, 0xf280b04e, 0x07ac0536, 0xccf0d693, 0x4a64a43d, + 0x81387798, 0x9c3d4720, 0x57619485, 0xd1f5e62b, 0x1aa9358e, + 0xebff875b, 0x20a354fe, 0xa6372650, 0x6d6bf5f5, 0x706ec54d, + 0xbb3216e8, 0x3da66446, 0xf6fab7e3, 0x047a07ad, 0xcf26d408, + 0x49b2a6a6, 0x82ee7503, 0x9feb45bb, 0x54b7961e, 0xd223e4b0, + 0x197f3715, 0xe82985c0, 0x23755665, 0xa5e124cb, 0x6ebdf76e, + 0x73b8c7d6, 0xb8e41473, 0x3e7066dd, 0xf52cb578, 0x0f580a6c, + 0xc404d9c9, 0x4290ab67, 0x89cc78c2, 0x94c9487a, 0x5f959bdf, + 0xd901e971, 0x125d3ad4, 0xe30b8801, 0x28575ba4, 0xaec3290a, + 0x659ffaaf, 0x789aca17, 0xb3c619b2, 0x35526b1c, 0xfe0eb8b9, + 0x0c8e08f7, 0xc7d2db52, 0x4146a9fc, 0x8a1a7a59, 0x971f4ae1, + 0x5c439944, 0xdad7ebea, 0x118b384f, 0xe0dd8a9a, 0x2b81593f, + 0xad152b91, 0x6649f834, 0x7b4cc88c, 0xb0101b29, 0x36846987, + 0xfdd8ba22, 0x08f40f5a, 0xc3a8dcff, 0x453cae51, 0x8e607df4, + 0x93654d4c, 0x58399ee9, 0xdeadec47, 0x15f13fe2, 0xe4a78d37, + 0x2ffb5e92, 0xa96f2c3c, 0x6233ff99, 0x7f36cf21, 0xb46a1c84, + 0x32fe6e2a, 0xf9a2bd8f, 0x0b220dc1, 0xc07ede64, 0x46eaacca, + 0x8db67f6f, 0x90b34fd7, 0x5bef9c72, 0xdd7beedc, 0x16273d79, + 0xe7718fac, 0x2c2d5c09, 0xaab92ea7, 0x61e5fd02, 0x7ce0cdba, + 0xb7bc1e1f, 0x31286cb1, 0xfa74bf14, 0x1eb014d8, 0xd5ecc77d, + 0x5378b5d3, 0x98246676, 0x852156ce, 0x4e7d856b, 0xc8e9f7c5, + 0x03b52460, 0xf2e396b5, 0x39bf4510, 0xbf2b37be, 0x7477e41b, + 0x6972d4a3, 0xa22e0706, 0x24ba75a8, 0xefe6a60d, 0x1d661643, + 0xd63ac5e6, 0x50aeb748, 0x9bf264ed, 0x86f75455, 0x4dab87f0, + 0xcb3ff55e, 0x006326fb, 0xf135942e, 0x3a69478b, 0xbcfd3525, + 0x77a1e680, 0x6aa4d638, 0xa1f8059d, 0x276c7733, 0xec30a496, + 0x191c11ee, 0xd240c24b, 0x54d4b0e5, 0x9f886340, 0x828d53f8, + 0x49d1805d, 0xcf45f2f3, 0x04192156, 0xf54f9383, 0x3e134026, + 0xb8873288, 0x73dbe12d, 0x6eded195, 0xa5820230, 0x2316709e, + 0xe84aa33b, 0x1aca1375, 0xd196c0d0, 0x5702b27e, 0x9c5e61db, + 0x815b5163, 0x4a0782c6, 0xcc93f068, 0x07cf23cd, 0xf6999118, + 0x3dc542bd, 0xbb513013, 0x700de3b6, 0x6d08d30e, 0xa65400ab, + 0x20c07205, 0xeb9ca1a0, 0x11e81eb4, 0xdab4cd11, 0x5c20bfbf, + 0x977c6c1a, 0x8a795ca2, 0x41258f07, 0xc7b1fda9, 0x0ced2e0c, + 0xfdbb9cd9, 0x36e74f7c, 0xb0733dd2, 0x7b2fee77, 0x662adecf, + 0xad760d6a, 0x2be27fc4, 0xe0beac61, 0x123e1c2f, 0xd962cf8a, + 0x5ff6bd24, 0x94aa6e81, 0x89af5e39, 0x42f38d9c, 0xc467ff32, + 0x0f3b2c97, 0xfe6d9e42, 0x35314de7, 0xb3a53f49, 0x78f9ecec, + 0x65fcdc54, 0xaea00ff1, 0x28347d5f, 0xe368aefa, 0x16441b82, + 0xdd18c827, 0x5b8cba89, 0x90d0692c, 0x8dd55994, 0x46898a31, + 0xc01df89f, 0x0b412b3a, 0xfa1799ef, 0x314b4a4a, 0xb7df38e4, + 0x7c83eb41, 0x6186dbf9, 0xaada085c, 0x2c4e7af2, 0xe712a957, + 0x15921919, 0xdececabc, 0x585ab812, 0x93066bb7, 0x8e035b0f, + 0x455f88aa, 0xc3cbfa04, 0x089729a1, 0xf9c19b74, 0x329d48d1, + 0xb4093a7f, 0x7f55e9da, 0x6250d962, 0xa90c0ac7, 0x2f987869, + 0xe4c4abcc}, + {0x00000000, 0x3d6029b0, 0x7ac05360, 0x47a07ad0, 0xf580a6c0, + 0xc8e08f70, 0x8f40f5a0, 0xb220dc10, 0x30704bc1, 0x0d106271, + 0x4ab018a1, 0x77d03111, 0xc5f0ed01, 0xf890c4b1, 0xbf30be61, + 0x825097d1, 0x60e09782, 0x5d80be32, 0x1a20c4e2, 0x2740ed52, + 0x95603142, 0xa80018f2, 0xefa06222, 0xd2c04b92, 0x5090dc43, + 0x6df0f5f3, 0x2a508f23, 0x1730a693, 0xa5107a83, 0x98705333, + 0xdfd029e3, 0xe2b00053, 0xc1c12f04, 0xfca106b4, 0xbb017c64, + 0x866155d4, 0x344189c4, 0x0921a074, 0x4e81daa4, 0x73e1f314, + 0xf1b164c5, 0xccd14d75, 0x8b7137a5, 0xb6111e15, 0x0431c205, + 0x3951ebb5, 0x7ef19165, 0x4391b8d5, 0xa121b886, 0x9c419136, + 0xdbe1ebe6, 0xe681c256, 0x54a11e46, 0x69c137f6, 0x2e614d26, + 0x13016496, 0x9151f347, 0xac31daf7, 0xeb91a027, 0xd6f18997, + 0x64d15587, 0x59b17c37, 0x1e1106e7, 0x23712f57, 0x58f35849, + 0x659371f9, 0x22330b29, 0x1f532299, 0xad73fe89, 0x9013d739, + 0xd7b3ade9, 0xead38459, 0x68831388, 0x55e33a38, 0x124340e8, + 0x2f236958, 0x9d03b548, 0xa0639cf8, 0xe7c3e628, 0xdaa3cf98, + 0x3813cfcb, 0x0573e67b, 0x42d39cab, 0x7fb3b51b, 0xcd93690b, + 0xf0f340bb, 0xb7533a6b, 0x8a3313db, 0x0863840a, 0x3503adba, + 0x72a3d76a, 0x4fc3feda, 0xfde322ca, 0xc0830b7a, 0x872371aa, + 0xba43581a, 0x9932774d, 0xa4525efd, 0xe3f2242d, 0xde920d9d, + 0x6cb2d18d, 0x51d2f83d, 0x167282ed, 0x2b12ab5d, 0xa9423c8c, + 0x9422153c, 0xd3826fec, 0xeee2465c, 0x5cc29a4c, 0x61a2b3fc, + 0x2602c92c, 0x1b62e09c, 0xf9d2e0cf, 0xc4b2c97f, 0x8312b3af, + 0xbe729a1f, 0x0c52460f, 0x31326fbf, 0x7692156f, 0x4bf23cdf, + 0xc9a2ab0e, 0xf4c282be, 0xb362f86e, 0x8e02d1de, 0x3c220dce, + 0x0142247e, 0x46e25eae, 0x7b82771e, 0xb1e6b092, 0x8c869922, + 0xcb26e3f2, 0xf646ca42, 0x44661652, 0x79063fe2, 0x3ea64532, + 0x03c66c82, 0x8196fb53, 0xbcf6d2e3, 0xfb56a833, 0xc6368183, + 0x74165d93, 0x49767423, 0x0ed60ef3, 0x33b62743, 0xd1062710, + 0xec660ea0, 0xabc67470, 0x96a65dc0, 0x248681d0, 0x19e6a860, + 0x5e46d2b0, 0x6326fb00, 0xe1766cd1, 0xdc164561, 0x9bb63fb1, + 0xa6d61601, 0x14f6ca11, 0x2996e3a1, 0x6e369971, 0x5356b0c1, + 0x70279f96, 0x4d47b626, 0x0ae7ccf6, 0x3787e546, 0x85a73956, + 0xb8c710e6, 0xff676a36, 0xc2074386, 0x4057d457, 0x7d37fde7, + 0x3a978737, 0x07f7ae87, 0xb5d77297, 0x88b75b27, 0xcf1721f7, + 0xf2770847, 0x10c70814, 0x2da721a4, 0x6a075b74, 0x576772c4, + 0xe547aed4, 0xd8278764, 0x9f87fdb4, 0xa2e7d404, 0x20b743d5, + 0x1dd76a65, 0x5a7710b5, 0x67173905, 0xd537e515, 0xe857cca5, + 0xaff7b675, 0x92979fc5, 0xe915e8db, 0xd475c16b, 0x93d5bbbb, + 0xaeb5920b, 0x1c954e1b, 0x21f567ab, 0x66551d7b, 0x5b3534cb, + 0xd965a31a, 0xe4058aaa, 0xa3a5f07a, 0x9ec5d9ca, 0x2ce505da, + 0x11852c6a, 0x562556ba, 0x6b457f0a, 0x89f57f59, 0xb49556e9, + 0xf3352c39, 0xce550589, 0x7c75d999, 0x4115f029, 0x06b58af9, + 0x3bd5a349, 0xb9853498, 0x84e51d28, 0xc34567f8, 0xfe254e48, + 0x4c059258, 0x7165bbe8, 0x36c5c138, 0x0ba5e888, 0x28d4c7df, + 0x15b4ee6f, 0x521494bf, 0x6f74bd0f, 0xdd54611f, 0xe03448af, + 0xa794327f, 0x9af41bcf, 0x18a48c1e, 0x25c4a5ae, 0x6264df7e, + 0x5f04f6ce, 0xed242ade, 0xd044036e, 0x97e479be, 0xaa84500e, + 0x4834505d, 0x755479ed, 0x32f4033d, 0x0f942a8d, 0xbdb4f69d, + 0x80d4df2d, 0xc774a5fd, 0xfa148c4d, 0x78441b9c, 0x4524322c, + 0x028448fc, 0x3fe4614c, 0x8dc4bd5c, 0xb0a494ec, 0xf704ee3c, + 0xca64c78c}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0xb029603d, 0x6053c07a, 0xd07aa047, 0xc0a680f5, + 0x708fe0c8, 0xa0f5408f, 0x10dc20b2, 0xc14b7030, 0x7162100d, + 0xa118b04a, 0x1131d077, 0x01edf0c5, 0xb1c490f8, 0x61be30bf, + 0xd1975082, 0x8297e060, 0x32be805d, 0xe2c4201a, 0x52ed4027, + 0x42316095, 0xf21800a8, 0x2262a0ef, 0x924bc0d2, 0x43dc9050, + 0xf3f5f06d, 0x238f502a, 0x93a63017, 0x837a10a5, 0x33537098, + 0xe329d0df, 0x5300b0e2, 0x042fc1c1, 0xb406a1fc, 0x647c01bb, + 0xd4556186, 0xc4894134, 0x74a02109, 0xa4da814e, 0x14f3e173, + 0xc564b1f1, 0x754dd1cc, 0xa537718b, 0x151e11b6, 0x05c23104, + 0xb5eb5139, 0x6591f17e, 0xd5b89143, 0x86b821a1, 0x3691419c, + 0xe6ebe1db, 0x56c281e6, 0x461ea154, 0xf637c169, 0x264d612e, + 0x96640113, 0x47f35191, 0xf7da31ac, 0x27a091eb, 0x9789f1d6, + 0x8755d164, 0x377cb159, 0xe706111e, 0x572f7123, 0x4958f358, + 0xf9719365, 0x290b3322, 0x9922531f, 0x89fe73ad, 0x39d71390, + 0xe9adb3d7, 0x5984d3ea, 0x88138368, 0x383ae355, 0xe8404312, + 0x5869232f, 0x48b5039d, 0xf89c63a0, 0x28e6c3e7, 0x98cfa3da, + 0xcbcf1338, 0x7be67305, 0xab9cd342, 0x1bb5b37f, 0x0b6993cd, + 0xbb40f3f0, 0x6b3a53b7, 0xdb13338a, 0x0a846308, 0xbaad0335, + 0x6ad7a372, 0xdafec34f, 0xca22e3fd, 0x7a0b83c0, 0xaa712387, + 0x1a5843ba, 0x4d773299, 0xfd5e52a4, 0x2d24f2e3, 0x9d0d92de, + 0x8dd1b26c, 0x3df8d251, 0xed827216, 0x5dab122b, 0x8c3c42a9, + 0x3c152294, 0xec6f82d3, 0x5c46e2ee, 0x4c9ac25c, 0xfcb3a261, + 0x2cc90226, 0x9ce0621b, 0xcfe0d2f9, 0x7fc9b2c4, 0xafb31283, + 0x1f9a72be, 0x0f46520c, 0xbf6f3231, 0x6f159276, 0xdf3cf24b, + 0x0eaba2c9, 0xbe82c2f4, 0x6ef862b3, 0xded1028e, 0xce0d223c, + 0x7e244201, 0xae5ee246, 0x1e77827b, 0x92b0e6b1, 0x2299868c, + 0xf2e326cb, 0x42ca46f6, 0x52166644, 0xe23f0679, 0x3245a63e, + 0x826cc603, 0x53fb9681, 0xe3d2f6bc, 0x33a856fb, 0x838136c6, + 0x935d1674, 0x23747649, 0xf30ed60e, 0x4327b633, 0x102706d1, + 0xa00e66ec, 0x7074c6ab, 0xc05da696, 0xd0818624, 0x60a8e619, + 0xb0d2465e, 0x00fb2663, 0xd16c76e1, 0x614516dc, 0xb13fb69b, + 0x0116d6a6, 0x11caf614, 0xa1e39629, 0x7199366e, 0xc1b05653, + 0x969f2770, 0x26b6474d, 0xf6cce70a, 0x46e58737, 0x5639a785, + 0xe610c7b8, 0x366a67ff, 0x864307c2, 0x57d45740, 0xe7fd377d, + 0x3787973a, 0x87aef707, 0x9772d7b5, 0x275bb788, 0xf72117cf, + 0x470877f2, 0x1408c710, 0xa421a72d, 0x745b076a, 0xc4726757, + 0xd4ae47e5, 0x648727d8, 0xb4fd879f, 0x04d4e7a2, 0xd543b720, + 0x656ad71d, 0xb510775a, 0x05391767, 0x15e537d5, 0xa5cc57e8, + 0x75b6f7af, 0xc59f9792, 0xdbe815e9, 0x6bc175d4, 0xbbbbd593, + 0x0b92b5ae, 0x1b4e951c, 0xab67f521, 0x7b1d5566, 0xcb34355b, + 0x1aa365d9, 0xaa8a05e4, 0x7af0a5a3, 0xcad9c59e, 0xda05e52c, + 0x6a2c8511, 0xba562556, 0x0a7f456b, 0x597ff589, 0xe95695b4, + 0x392c35f3, 0x890555ce, 0x99d9757c, 0x29f01541, 0xf98ab506, + 0x49a3d53b, 0x983485b9, 0x281de584, 0xf86745c3, 0x484e25fe, + 0x5892054c, 0xe8bb6571, 0x38c1c536, 0x88e8a50b, 0xdfc7d428, + 0x6feeb415, 0xbf941452, 0x0fbd746f, 0x1f6154dd, 0xaf4834e0, + 0x7f3294a7, 0xcf1bf49a, 0x1e8ca418, 0xaea5c425, 0x7edf6462, + 0xcef6045f, 0xde2a24ed, 0x6e0344d0, 0xbe79e497, 0x0e5084aa, + 0x5d503448, 0xed795475, 0x3d03f432, 0x8d2a940f, 0x9df6b4bd, + 0x2ddfd480, 0xfda574c7, 0x4d8c14fa, 0x9c1b4478, 0x2c322445, + 0xfc488402, 0x4c61e43f, 0x5cbdc48d, 0xec94a4b0, 0x3cee04f7, + 0x8cc764ca}, + {0x00000000, 0xa5d35ccb, 0x0ba1c84d, 0xae729486, 0x1642919b, + 0xb391cd50, 0x1de359d6, 0xb830051d, 0x6d8253ec, 0xc8510f27, + 0x66239ba1, 0xc3f0c76a, 0x7bc0c277, 0xde139ebc, 0x70610a3a, + 0xd5b256f1, 0x9b02d603, 0x3ed18ac8, 0x90a31e4e, 0x35704285, + 0x8d404798, 0x28931b53, 0x86e18fd5, 0x2332d31e, 0xf68085ef, + 0x5353d924, 0xfd214da2, 0x58f21169, 0xe0c21474, 0x451148bf, + 0xeb63dc39, 0x4eb080f2, 0x3605ac07, 0x93d6f0cc, 0x3da4644a, + 0x98773881, 0x20473d9c, 0x85946157, 0x2be6f5d1, 0x8e35a91a, + 0x5b87ffeb, 0xfe54a320, 0x502637a6, 0xf5f56b6d, 0x4dc56e70, + 0xe81632bb, 0x4664a63d, 0xe3b7faf6, 0xad077a04, 0x08d426cf, + 0xa6a6b249, 0x0375ee82, 0xbb45eb9f, 0x1e96b754, 0xb0e423d2, + 0x15377f19, 0xc08529e8, 0x65567523, 0xcb24e1a5, 0x6ef7bd6e, + 0xd6c7b873, 0x7314e4b8, 0xdd66703e, 0x78b52cf5, 0x6c0a580f, + 0xc9d904c4, 0x67ab9042, 0xc278cc89, 0x7a48c994, 0xdf9b955f, + 0x71e901d9, 0xd43a5d12, 0x01880be3, 0xa45b5728, 0x0a29c3ae, + 0xaffa9f65, 0x17ca9a78, 0xb219c6b3, 0x1c6b5235, 0xb9b80efe, + 0xf7088e0c, 0x52dbd2c7, 0xfca94641, 0x597a1a8a, 0xe14a1f97, + 0x4499435c, 0xeaebd7da, 0x4f388b11, 0x9a8adde0, 0x3f59812b, + 0x912b15ad, 0x34f84966, 0x8cc84c7b, 0x291b10b0, 0x87698436, + 0x22bad8fd, 0x5a0ff408, 0xffdca8c3, 0x51ae3c45, 0xf47d608e, + 0x4c4d6593, 0xe99e3958, 0x47ecadde, 0xe23ff115, 0x378da7e4, + 0x925efb2f, 0x3c2c6fa9, 0x99ff3362, 0x21cf367f, 0x841c6ab4, + 0x2a6efe32, 0x8fbda2f9, 0xc10d220b, 0x64de7ec0, 0xcaacea46, + 0x6f7fb68d, 0xd74fb390, 0x729cef5b, 0xdcee7bdd, 0x793d2716, + 0xac8f71e7, 0x095c2d2c, 0xa72eb9aa, 0x02fde561, 0xbacde07c, + 0x1f1ebcb7, 0xb16c2831, 0x14bf74fa, 0xd814b01e, 0x7dc7ecd5, + 0xd3b57853, 0x76662498, 0xce562185, 0x6b857d4e, 0xc5f7e9c8, + 0x6024b503, 0xb596e3f2, 0x1045bf39, 0xbe372bbf, 0x1be47774, + 0xa3d47269, 0x06072ea2, 0xa875ba24, 0x0da6e6ef, 0x4316661d, + 0xe6c53ad6, 0x48b7ae50, 0xed64f29b, 0x5554f786, 0xf087ab4d, + 0x5ef53fcb, 0xfb266300, 0x2e9435f1, 0x8b47693a, 0x2535fdbc, + 0x80e6a177, 0x38d6a46a, 0x9d05f8a1, 0x33776c27, 0x96a430ec, + 0xee111c19, 0x4bc240d2, 0xe5b0d454, 0x4063889f, 0xf8538d82, + 0x5d80d149, 0xf3f245cf, 0x56211904, 0x83934ff5, 0x2640133e, + 0x883287b8, 0x2de1db73, 0x95d1de6e, 0x300282a5, 0x9e701623, + 0x3ba34ae8, 0x7513ca1a, 0xd0c096d1, 0x7eb20257, 0xdb615e9c, + 0x63515b81, 0xc682074a, 0x68f093cc, 0xcd23cf07, 0x189199f6, + 0xbd42c53d, 0x133051bb, 0xb6e30d70, 0x0ed3086d, 0xab0054a6, + 0x0572c020, 0xa0a19ceb, 0xb41ee811, 0x11cdb4da, 0xbfbf205c, + 0x1a6c7c97, 0xa25c798a, 0x078f2541, 0xa9fdb1c7, 0x0c2eed0c, + 0xd99cbbfd, 0x7c4fe736, 0xd23d73b0, 0x77ee2f7b, 0xcfde2a66, + 0x6a0d76ad, 0xc47fe22b, 0x61acbee0, 0x2f1c3e12, 0x8acf62d9, + 0x24bdf65f, 0x816eaa94, 0x395eaf89, 0x9c8df342, 0x32ff67c4, + 0x972c3b0f, 0x429e6dfe, 0xe74d3135, 0x493fa5b3, 0xececf978, + 0x54dcfc65, 0xf10fa0ae, 0x5f7d3428, 0xfaae68e3, 0x821b4416, + 0x27c818dd, 0x89ba8c5b, 0x2c69d090, 0x9459d58d, 0x318a8946, + 0x9ff81dc0, 0x3a2b410b, 0xef9917fa, 0x4a4a4b31, 0xe438dfb7, + 0x41eb837c, 0xf9db8661, 0x5c08daaa, 0xf27a4e2c, 0x57a912e7, + 0x19199215, 0xbccacede, 0x12b85a58, 0xb76b0693, 0x0f5b038e, + 0xaa885f45, 0x04facbc3, 0xa1299708, 0x749bc1f9, 0xd1489d32, + 0x7f3a09b4, 0xdae9557f, 0x62d95062, 0xc70a0ca9, 0x6978982f, + 0xccabc4e4}, + {0x00000000, 0xb40b77a6, 0x29119f97, 0x9d1ae831, 0x13244ff4, + 0xa72f3852, 0x3a35d063, 0x8e3ea7c5, 0x674eef33, 0xd3459895, + 0x4e5f70a4, 0xfa540702, 0x746aa0c7, 0xc061d761, 0x5d7b3f50, + 0xe97048f6, 0xce9cde67, 0x7a97a9c1, 0xe78d41f0, 0x53863656, + 0xddb89193, 0x69b3e635, 0xf4a90e04, 0x40a279a2, 0xa9d23154, + 0x1dd946f2, 0x80c3aec3, 0x34c8d965, 0xbaf67ea0, 0x0efd0906, + 0x93e7e137, 0x27ec9691, 0x9c39bdcf, 0x2832ca69, 0xb5282258, + 0x012355fe, 0x8f1df23b, 0x3b16859d, 0xa60c6dac, 0x12071a0a, + 0xfb7752fc, 0x4f7c255a, 0xd266cd6b, 0x666dbacd, 0xe8531d08, + 0x5c586aae, 0xc142829f, 0x7549f539, 0x52a563a8, 0xe6ae140e, + 0x7bb4fc3f, 0xcfbf8b99, 0x41812c5c, 0xf58a5bfa, 0x6890b3cb, + 0xdc9bc46d, 0x35eb8c9b, 0x81e0fb3d, 0x1cfa130c, 0xa8f164aa, + 0x26cfc36f, 0x92c4b4c9, 0x0fde5cf8, 0xbbd52b5e, 0x79750b44, + 0xcd7e7ce2, 0x506494d3, 0xe46fe375, 0x6a5144b0, 0xde5a3316, + 0x4340db27, 0xf74bac81, 0x1e3be477, 0xaa3093d1, 0x372a7be0, + 0x83210c46, 0x0d1fab83, 0xb914dc25, 0x240e3414, 0x900543b2, + 0xb7e9d523, 0x03e2a285, 0x9ef84ab4, 0x2af33d12, 0xa4cd9ad7, + 0x10c6ed71, 0x8ddc0540, 0x39d772e6, 0xd0a73a10, 0x64ac4db6, + 0xf9b6a587, 0x4dbdd221, 0xc38375e4, 0x77880242, 0xea92ea73, + 0x5e999dd5, 0xe54cb68b, 0x5147c12d, 0xcc5d291c, 0x78565eba, + 0xf668f97f, 0x42638ed9, 0xdf7966e8, 0x6b72114e, 0x820259b8, + 0x36092e1e, 0xab13c62f, 0x1f18b189, 0x9126164c, 0x252d61ea, + 0xb83789db, 0x0c3cfe7d, 0x2bd068ec, 0x9fdb1f4a, 0x02c1f77b, + 0xb6ca80dd, 0x38f42718, 0x8cff50be, 0x11e5b88f, 0xa5eecf29, + 0x4c9e87df, 0xf895f079, 0x658f1848, 0xd1846fee, 0x5fbac82b, + 0xebb1bf8d, 0x76ab57bc, 0xc2a0201a, 0xf2ea1688, 0x46e1612e, + 0xdbfb891f, 0x6ff0feb9, 0xe1ce597c, 0x55c52eda, 0xc8dfc6eb, + 0x7cd4b14d, 0x95a4f9bb, 0x21af8e1d, 0xbcb5662c, 0x08be118a, + 0x8680b64f, 0x328bc1e9, 0xaf9129d8, 0x1b9a5e7e, 0x3c76c8ef, + 0x887dbf49, 0x15675778, 0xa16c20de, 0x2f52871b, 0x9b59f0bd, + 0x0643188c, 0xb2486f2a, 0x5b3827dc, 0xef33507a, 0x7229b84b, + 0xc622cfed, 0x481c6828, 0xfc171f8e, 0x610df7bf, 0xd5068019, + 0x6ed3ab47, 0xdad8dce1, 0x47c234d0, 0xf3c94376, 0x7df7e4b3, + 0xc9fc9315, 0x54e67b24, 0xe0ed0c82, 0x099d4474, 0xbd9633d2, + 0x208cdbe3, 0x9487ac45, 0x1ab90b80, 0xaeb27c26, 0x33a89417, + 0x87a3e3b1, 0xa04f7520, 0x14440286, 0x895eeab7, 0x3d559d11, + 0xb36b3ad4, 0x07604d72, 0x9a7aa543, 0x2e71d2e5, 0xc7019a13, + 0x730aedb5, 0xee100584, 0x5a1b7222, 0xd425d5e7, 0x602ea241, + 0xfd344a70, 0x493f3dd6, 0x8b9f1dcc, 0x3f946a6a, 0xa28e825b, + 0x1685f5fd, 0x98bb5238, 0x2cb0259e, 0xb1aacdaf, 0x05a1ba09, + 0xecd1f2ff, 0x58da8559, 0xc5c06d68, 0x71cb1ace, 0xfff5bd0b, + 0x4bfecaad, 0xd6e4229c, 0x62ef553a, 0x4503c3ab, 0xf108b40d, + 0x6c125c3c, 0xd8192b9a, 0x56278c5f, 0xe22cfbf9, 0x7f3613c8, + 0xcb3d646e, 0x224d2c98, 0x96465b3e, 0x0b5cb30f, 0xbf57c4a9, + 0x3169636c, 0x856214ca, 0x1878fcfb, 0xac738b5d, 0x17a6a003, + 0xa3add7a5, 0x3eb73f94, 0x8abc4832, 0x0482eff7, 0xb0899851, + 0x2d937060, 0x999807c6, 0x70e84f30, 0xc4e33896, 0x59f9d0a7, + 0xedf2a701, 0x63cc00c4, 0xd7c77762, 0x4add9f53, 0xfed6e8f5, + 0xd93a7e64, 0x6d3109c2, 0xf02be1f3, 0x44209655, 0xca1e3190, + 0x7e154636, 0xe30fae07, 0x5704d9a1, 0xbe749157, 0x0a7fe6f1, + 0x97650ec0, 0x236e7966, 0xad50dea3, 0x195ba905, 0x84414134, + 0x304a3692}, + {0x00000000, 0x9e00aacc, 0x7d072542, 0xe3078f8e, 0xfa0e4a84, + 0x640ee048, 0x87096fc6, 0x1909c50a, 0xb51be5d3, 0x2b1b4f1f, + 0xc81cc091, 0x561c6a5d, 0x4f15af57, 0xd115059b, 0x32128a15, + 0xac1220d9, 0x2b31bb7c, 0xb53111b0, 0x56369e3e, 0xc83634f2, + 0xd13ff1f8, 0x4f3f5b34, 0xac38d4ba, 0x32387e76, 0x9e2a5eaf, + 0x002af463, 0xe32d7bed, 0x7d2dd121, 0x6424142b, 0xfa24bee7, + 0x19233169, 0x87239ba5, 0x566276f9, 0xc862dc35, 0x2b6553bb, + 0xb565f977, 0xac6c3c7d, 0x326c96b1, 0xd16b193f, 0x4f6bb3f3, + 0xe379932a, 0x7d7939e6, 0x9e7eb668, 0x007e1ca4, 0x1977d9ae, + 0x87777362, 0x6470fcec, 0xfa705620, 0x7d53cd85, 0xe3536749, + 0x0054e8c7, 0x9e54420b, 0x875d8701, 0x195d2dcd, 0xfa5aa243, + 0x645a088f, 0xc8482856, 0x5648829a, 0xb54f0d14, 0x2b4fa7d8, + 0x324662d2, 0xac46c81e, 0x4f414790, 0xd141ed5c, 0xedc29d29, + 0x73c237e5, 0x90c5b86b, 0x0ec512a7, 0x17ccd7ad, 0x89cc7d61, + 0x6acbf2ef, 0xf4cb5823, 0x58d978fa, 0xc6d9d236, 0x25de5db8, + 0xbbdef774, 0xa2d7327e, 0x3cd798b2, 0xdfd0173c, 0x41d0bdf0, + 0xc6f32655, 0x58f38c99, 0xbbf40317, 0x25f4a9db, 0x3cfd6cd1, + 0xa2fdc61d, 0x41fa4993, 0xdffae35f, 0x73e8c386, 0xede8694a, + 0x0eefe6c4, 0x90ef4c08, 0x89e68902, 0x17e623ce, 0xf4e1ac40, + 0x6ae1068c, 0xbba0ebd0, 0x25a0411c, 0xc6a7ce92, 0x58a7645e, + 0x41aea154, 0xdfae0b98, 0x3ca98416, 0xa2a92eda, 0x0ebb0e03, + 0x90bba4cf, 0x73bc2b41, 0xedbc818d, 0xf4b54487, 0x6ab5ee4b, + 0x89b261c5, 0x17b2cb09, 0x909150ac, 0x0e91fa60, 0xed9675ee, + 0x7396df22, 0x6a9f1a28, 0xf49fb0e4, 0x17983f6a, 0x899895a6, + 0x258ab57f, 0xbb8a1fb3, 0x588d903d, 0xc68d3af1, 0xdf84fffb, + 0x41845537, 0xa283dab9, 0x3c837075, 0xda853b53, 0x4485919f, + 0xa7821e11, 0x3982b4dd, 0x208b71d7, 0xbe8bdb1b, 0x5d8c5495, + 0xc38cfe59, 0x6f9ede80, 0xf19e744c, 0x1299fbc2, 0x8c99510e, + 0x95909404, 0x0b903ec8, 0xe897b146, 0x76971b8a, 0xf1b4802f, + 0x6fb42ae3, 0x8cb3a56d, 0x12b30fa1, 0x0bbacaab, 0x95ba6067, + 0x76bdefe9, 0xe8bd4525, 0x44af65fc, 0xdaafcf30, 0x39a840be, + 0xa7a8ea72, 0xbea12f78, 0x20a185b4, 0xc3a60a3a, 0x5da6a0f6, + 0x8ce74daa, 0x12e7e766, 0xf1e068e8, 0x6fe0c224, 0x76e9072e, + 0xe8e9ade2, 0x0bee226c, 0x95ee88a0, 0x39fca879, 0xa7fc02b5, + 0x44fb8d3b, 0xdafb27f7, 0xc3f2e2fd, 0x5df24831, 0xbef5c7bf, + 0x20f56d73, 0xa7d6f6d6, 0x39d65c1a, 0xdad1d394, 0x44d17958, + 0x5dd8bc52, 0xc3d8169e, 0x20df9910, 0xbedf33dc, 0x12cd1305, + 0x8ccdb9c9, 0x6fca3647, 0xf1ca9c8b, 0xe8c35981, 0x76c3f34d, + 0x95c47cc3, 0x0bc4d60f, 0x3747a67a, 0xa9470cb6, 0x4a408338, + 0xd44029f4, 0xcd49ecfe, 0x53494632, 0xb04ec9bc, 0x2e4e6370, + 0x825c43a9, 0x1c5ce965, 0xff5b66eb, 0x615bcc27, 0x7852092d, + 0xe652a3e1, 0x05552c6f, 0x9b5586a3, 0x1c761d06, 0x8276b7ca, + 0x61713844, 0xff719288, 0xe6785782, 0x7878fd4e, 0x9b7f72c0, + 0x057fd80c, 0xa96df8d5, 0x376d5219, 0xd46add97, 0x4a6a775b, + 0x5363b251, 0xcd63189d, 0x2e649713, 0xb0643ddf, 0x6125d083, + 0xff257a4f, 0x1c22f5c1, 0x82225f0d, 0x9b2b9a07, 0x052b30cb, + 0xe62cbf45, 0x782c1589, 0xd43e3550, 0x4a3e9f9c, 0xa9391012, + 0x3739bade, 0x2e307fd4, 0xb030d518, 0x53375a96, 0xcd37f05a, + 0x4a146bff, 0xd414c133, 0x37134ebd, 0xa913e471, 0xb01a217b, + 0x2e1a8bb7, 0xcd1d0439, 0x531daef5, 0xff0f8e2c, 0x610f24e0, + 0x8208ab6e, 0x1c0801a2, 0x0501c4a8, 0x9b016e64, 0x7806e1ea, + 0xe6064b26}}; + #endif - } -}; + +#endif + +#if N == 3 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0x81256527, 0xd93bcc0f, 0x581ea928, 0x69069e5f, + 0xe823fb78, 0xb03d5250, 0x31183777, 0xd20d3cbe, 0x53285999, + 0x0b36f0b1, 0x8a139596, 0xbb0ba2e1, 0x3a2ec7c6, 0x62306eee, + 0xe3150bc9, 0x7f6b7f3d, 0xfe4e1a1a, 0xa650b332, 0x2775d615, + 0x166de162, 0x97488445, 0xcf562d6d, 0x4e73484a, 0xad664383, + 0x2c4326a4, 0x745d8f8c, 0xf578eaab, 0xc460dddc, 0x4545b8fb, + 0x1d5b11d3, 0x9c7e74f4, 0xfed6fe7a, 0x7ff39b5d, 0x27ed3275, + 0xa6c85752, 0x97d06025, 0x16f50502, 0x4eebac2a, 0xcfcec90d, + 0x2cdbc2c4, 0xadfea7e3, 0xf5e00ecb, 0x74c56bec, 0x45dd5c9b, + 0xc4f839bc, 0x9ce69094, 0x1dc3f5b3, 0x81bd8147, 0x0098e460, + 0x58864d48, 0xd9a3286f, 0xe8bb1f18, 0x699e7a3f, 0x3180d317, + 0xb0a5b630, 0x53b0bdf9, 0xd295d8de, 0x8a8b71f6, 0x0bae14d1, + 0x3ab623a6, 0xbb934681, 0xe38defa9, 0x62a88a8e, 0x26dcfab5, + 0xa7f99f92, 0xffe736ba, 0x7ec2539d, 0x4fda64ea, 0xceff01cd, + 0x96e1a8e5, 0x17c4cdc2, 0xf4d1c60b, 0x75f4a32c, 0x2dea0a04, + 0xaccf6f23, 0x9dd75854, 0x1cf23d73, 0x44ec945b, 0xc5c9f17c, + 0x59b78588, 0xd892e0af, 0x808c4987, 0x01a92ca0, 0x30b11bd7, + 0xb1947ef0, 0xe98ad7d8, 0x68afb2ff, 0x8bbab936, 0x0a9fdc11, + 0x52817539, 0xd3a4101e, 0xe2bc2769, 0x6399424e, 0x3b87eb66, + 0xbaa28e41, 0xd80a04cf, 0x592f61e8, 0x0131c8c0, 0x8014ade7, + 0xb10c9a90, 0x3029ffb7, 0x6837569f, 0xe91233b8, 0x0a073871, + 0x8b225d56, 0xd33cf47e, 0x52199159, 0x6301a62e, 0xe224c309, + 0xba3a6a21, 0x3b1f0f06, 0xa7617bf2, 0x26441ed5, 0x7e5ab7fd, + 0xff7fd2da, 0xce67e5ad, 0x4f42808a, 0x175c29a2, 0x96794c85, + 0x756c474c, 0xf449226b, 0xac578b43, 0x2d72ee64, 0x1c6ad913, + 0x9d4fbc34, 0xc551151c, 0x4474703b, 0x4db9f56a, 0xcc9c904d, + 0x94823965, 0x15a75c42, 0x24bf6b35, 0xa59a0e12, 0xfd84a73a, + 0x7ca1c21d, 0x9fb4c9d4, 0x1e91acf3, 0x468f05db, 0xc7aa60fc, + 0xf6b2578b, 0x779732ac, 0x2f899b84, 0xaeacfea3, 0x32d28a57, + 0xb3f7ef70, 0xebe94658, 0x6acc237f, 0x5bd41408, 0xdaf1712f, + 0x82efd807, 0x03cabd20, 0xe0dfb6e9, 0x61fad3ce, 0x39e47ae6, + 0xb8c11fc1, 0x89d928b6, 0x08fc4d91, 0x50e2e4b9, 0xd1c7819e, + 0xb36f0b10, 0x324a6e37, 0x6a54c71f, 0xeb71a238, 0xda69954f, + 0x5b4cf068, 0x03525940, 0x82773c67, 0x616237ae, 0xe0475289, + 0xb859fba1, 0x397c9e86, 0x0864a9f1, 0x8941ccd6, 0xd15f65fe, + 0x507a00d9, 0xcc04742d, 0x4d21110a, 0x153fb822, 0x941add05, + 0xa502ea72, 0x24278f55, 0x7c39267d, 0xfd1c435a, 0x1e094893, + 0x9f2c2db4, 0xc732849c, 0x4617e1bb, 0x770fd6cc, 0xf62ab3eb, + 0xae341ac3, 0x2f117fe4, 0x6b650fdf, 0xea406af8, 0xb25ec3d0, + 0x337ba6f7, 0x02639180, 0x8346f4a7, 0xdb585d8f, 0x5a7d38a8, + 0xb9683361, 0x384d5646, 0x6053ff6e, 0xe1769a49, 0xd06ead3e, + 0x514bc819, 0x09556131, 0x88700416, 0x140e70e2, 0x952b15c5, + 0xcd35bced, 0x4c10d9ca, 0x7d08eebd, 0xfc2d8b9a, 0xa43322b2, + 0x25164795, 0xc6034c5c, 0x4726297b, 0x1f388053, 0x9e1de574, + 0xaf05d203, 0x2e20b724, 0x763e1e0c, 0xf71b7b2b, 0x95b3f1a5, + 0x14969482, 0x4c883daa, 0xcdad588d, 0xfcb56ffa, 0x7d900add, + 0x258ea3f5, 0xa4abc6d2, 0x47becd1b, 0xc69ba83c, 0x9e850114, + 0x1fa06433, 0x2eb85344, 0xaf9d3663, 0xf7839f4b, 0x76a6fa6c, + 0xead88e98, 0x6bfdebbf, 0x33e34297, 0xb2c627b0, 0x83de10c7, + 0x02fb75e0, 0x5ae5dcc8, 0xdbc0b9ef, 0x38d5b226, 0xb9f0d701, + 0xe1ee7e29, 0x60cb1b0e, 0x51d32c79, 0xd0f6495e, 0x88e8e076, + 0x09cd8551}, + {0x00000000, 0x9b73ead4, 0xed96d3e9, 0x76e5393d, 0x005ca193, + 0x9b2f4b47, 0xedca727a, 0x76b998ae, 0x00b94326, 0x9bcaa9f2, + 0xed2f90cf, 0x765c7a1b, 0x00e5e2b5, 0x9b960861, 0xed73315c, + 0x7600db88, 0x0172864c, 0x9a016c98, 0xece455a5, 0x7797bf71, + 0x012e27df, 0x9a5dcd0b, 0xecb8f436, 0x77cb1ee2, 0x01cbc56a, + 0x9ab82fbe, 0xec5d1683, 0x772efc57, 0x019764f9, 0x9ae48e2d, + 0xec01b710, 0x77725dc4, 0x02e50c98, 0x9996e64c, 0xef73df71, + 0x740035a5, 0x02b9ad0b, 0x99ca47df, 0xef2f7ee2, 0x745c9436, + 0x025c4fbe, 0x992fa56a, 0xefca9c57, 0x74b97683, 0x0200ee2d, + 0x997304f9, 0xef963dc4, 0x74e5d710, 0x03978ad4, 0x98e46000, + 0xee01593d, 0x7572b3e9, 0x03cb2b47, 0x98b8c193, 0xee5df8ae, + 0x752e127a, 0x032ec9f2, 0x985d2326, 0xeeb81a1b, 0x75cbf0cf, + 0x03726861, 0x980182b5, 0xeee4bb88, 0x7597515c, 0x05ca1930, + 0x9eb9f3e4, 0xe85ccad9, 0x732f200d, 0x0596b8a3, 0x9ee55277, + 0xe8006b4a, 0x7373819e, 0x05735a16, 0x9e00b0c2, 0xe8e589ff, + 0x7396632b, 0x052ffb85, 0x9e5c1151, 0xe8b9286c, 0x73cac2b8, + 0x04b89f7c, 0x9fcb75a8, 0xe92e4c95, 0x725da641, 0x04e43eef, + 0x9f97d43b, 0xe972ed06, 0x720107d2, 0x0401dc5a, 0x9f72368e, + 0xe9970fb3, 0x72e4e567, 0x045d7dc9, 0x9f2e971d, 0xe9cbae20, + 0x72b844f4, 0x072f15a8, 0x9c5cff7c, 0xeab9c641, 0x71ca2c95, + 0x0773b43b, 0x9c005eef, 0xeae567d2, 0x71968d06, 0x0796568e, + 0x9ce5bc5a, 0xea008567, 0x71736fb3, 0x07caf71d, 0x9cb91dc9, + 0xea5c24f4, 0x712fce20, 0x065d93e4, 0x9d2e7930, 0xebcb400d, + 0x70b8aad9, 0x06013277, 0x9d72d8a3, 0xeb97e19e, 0x70e40b4a, + 0x06e4d0c2, 0x9d973a16, 0xeb72032b, 0x7001e9ff, 0x06b87151, + 0x9dcb9b85, 0xeb2ea2b8, 0x705d486c, 0x0b943260, 0x90e7d8b4, + 0xe602e189, 0x7d710b5d, 0x0bc893f3, 0x90bb7927, 0xe65e401a, + 0x7d2daace, 0x0b2d7146, 0x905e9b92, 0xe6bba2af, 0x7dc8487b, + 0x0b71d0d5, 0x90023a01, 0xe6e7033c, 0x7d94e9e8, 0x0ae6b42c, + 0x91955ef8, 0xe77067c5, 0x7c038d11, 0x0aba15bf, 0x91c9ff6b, + 0xe72cc656, 0x7c5f2c82, 0x0a5ff70a, 0x912c1dde, 0xe7c924e3, + 0x7cbace37, 0x0a035699, 0x9170bc4d, 0xe7958570, 0x7ce66fa4, + 0x09713ef8, 0x9202d42c, 0xe4e7ed11, 0x7f9407c5, 0x092d9f6b, + 0x925e75bf, 0xe4bb4c82, 0x7fc8a656, 0x09c87dde, 0x92bb970a, + 0xe45eae37, 0x7f2d44e3, 0x0994dc4d, 0x92e73699, 0xe4020fa4, + 0x7f71e570, 0x0803b8b4, 0x93705260, 0xe5956b5d, 0x7ee68189, + 0x085f1927, 0x932cf3f3, 0xe5c9cace, 0x7eba201a, 0x08bafb92, + 0x93c91146, 0xe52c287b, 0x7e5fc2af, 0x08e65a01, 0x9395b0d5, + 0xe57089e8, 0x7e03633c, 0x0e5e2b50, 0x952dc184, 0xe3c8f8b9, + 0x78bb126d, 0x0e028ac3, 0x95716017, 0xe394592a, 0x78e7b3fe, + 0x0ee76876, 0x959482a2, 0xe371bb9f, 0x7802514b, 0x0ebbc9e5, + 0x95c82331, 0xe32d1a0c, 0x785ef0d8, 0x0f2cad1c, 0x945f47c8, + 0xe2ba7ef5, 0x79c99421, 0x0f700c8f, 0x9403e65b, 0xe2e6df66, + 0x799535b2, 0x0f95ee3a, 0x94e604ee, 0xe2033dd3, 0x7970d707, + 0x0fc94fa9, 0x94baa57d, 0xe25f9c40, 0x792c7694, 0x0cbb27c8, + 0x97c8cd1c, 0xe12df421, 0x7a5e1ef5, 0x0ce7865b, 0x97946c8f, + 0xe17155b2, 0x7a02bf66, 0x0c0264ee, 0x97718e3a, 0xe194b707, + 0x7ae75dd3, 0x0c5ec57d, 0x972d2fa9, 0xe1c81694, 0x7abbfc40, + 0x0dc9a184, 0x96ba4b50, 0xe05f726d, 0x7b2c98b9, 0x0d950017, + 0x96e6eac3, 0xe003d3fe, 0x7b70392a, 0x0d70e2a2, 0x96030876, + 0xe0e6314b, 0x7b95db9f, 0x0d2c4331, 0x965fa9e5, 0xe0ba90d8, + 0x7bc97a0c}, + {0x00000000, 0x172864c0, 0x2e50c980, 0x3978ad40, 0x5ca19300, + 0x4b89f7c0, 0x72f15a80, 0x65d93e40, 0xb9432600, 0xae6b42c0, + 0x9713ef80, 0x803b8b40, 0xe5e2b500, 0xf2cad1c0, 0xcbb27c80, + 0xdc9a1840, 0xa9f74a41, 0xbedf2e81, 0x87a783c1, 0x908fe701, + 0xf556d941, 0xe27ebd81, 0xdb0610c1, 0xcc2e7401, 0x10b46c41, + 0x079c0881, 0x3ee4a5c1, 0x29ccc101, 0x4c15ff41, 0x5b3d9b81, + 0x624536c1, 0x756d5201, 0x889f92c3, 0x9fb7f603, 0xa6cf5b43, + 0xb1e73f83, 0xd43e01c3, 0xc3166503, 0xfa6ec843, 0xed46ac83, + 0x31dcb4c3, 0x26f4d003, 0x1f8c7d43, 0x08a41983, 0x6d7d27c3, + 0x7a554303, 0x432dee43, 0x54058a83, 0x2168d882, 0x3640bc42, + 0x0f381102, 0x181075c2, 0x7dc94b82, 0x6ae12f42, 0x53998202, + 0x44b1e6c2, 0x982bfe82, 0x8f039a42, 0xb67b3702, 0xa15353c2, + 0xc48a6d82, 0xd3a20942, 0xeadaa402, 0xfdf2c0c2, 0xca4e23c7, + 0xdd664707, 0xe41eea47, 0xf3368e87, 0x96efb0c7, 0x81c7d407, + 0xb8bf7947, 0xaf971d87, 0x730d05c7, 0x64256107, 0x5d5dcc47, + 0x4a75a887, 0x2fac96c7, 0x3884f207, 0x01fc5f47, 0x16d43b87, + 0x63b96986, 0x74910d46, 0x4de9a006, 0x5ac1c4c6, 0x3f18fa86, + 0x28309e46, 0x11483306, 0x066057c6, 0xdafa4f86, 0xcdd22b46, + 0xf4aa8606, 0xe382e2c6, 0x865bdc86, 0x9173b846, 0xa80b1506, + 0xbf2371c6, 0x42d1b104, 0x55f9d5c4, 0x6c817884, 0x7ba91c44, + 0x1e702204, 0x095846c4, 0x3020eb84, 0x27088f44, 0xfb929704, + 0xecbaf3c4, 0xd5c25e84, 0xc2ea3a44, 0xa7330404, 0xb01b60c4, + 0x8963cd84, 0x9e4ba944, 0xeb26fb45, 0xfc0e9f85, 0xc57632c5, + 0xd25e5605, 0xb7876845, 0xa0af0c85, 0x99d7a1c5, 0x8effc505, + 0x5265dd45, 0x454db985, 0x7c3514c5, 0x6b1d7005, 0x0ec44e45, + 0x19ec2a85, 0x209487c5, 0x37bce305, 0x4fed41cf, 0x58c5250f, + 0x61bd884f, 0x7695ec8f, 0x134cd2cf, 0x0464b60f, 0x3d1c1b4f, + 0x2a347f8f, 0xf6ae67cf, 0xe186030f, 0xd8feae4f, 0xcfd6ca8f, + 0xaa0ff4cf, 0xbd27900f, 0x845f3d4f, 0x9377598f, 0xe61a0b8e, + 0xf1326f4e, 0xc84ac20e, 0xdf62a6ce, 0xbabb988e, 0xad93fc4e, + 0x94eb510e, 0x83c335ce, 0x5f592d8e, 0x4871494e, 0x7109e40e, + 0x662180ce, 0x03f8be8e, 0x14d0da4e, 0x2da8770e, 0x3a8013ce, + 0xc772d30c, 0xd05ab7cc, 0xe9221a8c, 0xfe0a7e4c, 0x9bd3400c, + 0x8cfb24cc, 0xb583898c, 0xa2abed4c, 0x7e31f50c, 0x691991cc, + 0x50613c8c, 0x4749584c, 0x2290660c, 0x35b802cc, 0x0cc0af8c, + 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0x651be0da, 0x35c64d1e, 0xe224cd46, + 0x41724bef, 0x9690cbb7, 0xdcae40fc, 0x0b4cc0a4, 0xa81a460d, + 0x7ff8c655, 0x3c67509b, 0xeb85d0c3, 0x48d3566a, 0x9f31d632, + 0xd50f5d79, 0x02eddd21, 0xa1bb5b88, 0x7659dbd0, 0x4d08ec28, + 0x9aea6c70, 0x39bcead9, 0xee5e6a81, 0xa460e1ca, 0x73826192, + 0xd0d4e73b, 0x07366763, 0x44a9f1ad, 0x934b71f5, 0x301df75c, + 0xe7ff7704, 0xadc1fc4f, 0x7a237c17, 0xd975fabe, 0x0e977ae6, + 0x5e4ad722, 0x89a8577a, 0x2afed1d3, 0xfd1c518b, 0xb722dac0, + 0x60c05a98, 0xc396dc31, 0x14745c69, 0x57ebcaa7, 0x80094aff, + 0x235fcc56, 0xf4bd4c0e, 0xbe83c745, 0x6961471d, 0xca37c1b4, + 0x1dd541ec, 0x6b8c9a3c, 0xbc6e1a64, 0x1f389ccd, 0xc8da1c95, + 0x82e497de, 0x55061786, 0xf650912f, 0x21b21177, 0x622d87b9, + 0xb5cf07e1, 0x16998148, 0xc17b0110, 0x8b458a5b, 0x5ca70a03, + 0xfff18caa, 0x28130cf2, 0x78cea136, 0xaf2c216e, 0x0c7aa7c7, + 0xdb98279f, 0x91a6acd4, 0x46442c8c, 0xe512aa25, 0x32f02a7d, + 0x716fbcb3, 0xa68d3ceb, 0x05dbba42, 0xd2393a1a, 0x9807b151, + 0x4fe53109, 0xecb3b7a0, 0x3b5137f8, 0x9a11d850, 0x4df35808, + 0xeea5dea1, 0x39475ef9, 0x7379d5b2, 0xa49b55ea, 0x07cdd343, + 0xd02f531b, 0x93b0c5d5, 0x4452458d, 0xe704c324, 0x30e6437c, + 0x7ad8c837, 0xad3a486f, 0x0e6ccec6, 0xd98e4e9e, 0x8953e35a, + 0x5eb16302, 0xfde7e5ab, 0x2a0565f3, 0x603beeb8, 0xb7d96ee0, + 0x148fe849, 0xc36d6811, 0x80f2fedf, 0x57107e87, 0xf446f82e, + 0x23a47876, 0x699af33d, 0xbe787365, 0x1d2ef5cc, 0xcacc7594, + 0xbc95ae44, 0x6b772e1c, 0xc821a8b5, 0x1fc328ed, 0x55fda3a6, + 0x821f23fe, 0x2149a557, 0xf6ab250f, 0xb534b3c1, 0x62d63399, + 0xc180b530, 0x16623568, 0x5c5cbe23, 0x8bbe3e7b, 0x28e8b8d2, + 0xff0a388a, 0xafd7954e, 0x78351516, 0xdb6393bf, 0x0c8113e7, + 0x46bf98ac, 0x915d18f4, 0x320b9e5d, 0xe5e91e05, 0xa67688cb, + 0x71940893, 0xd2c28e3a, 0x05200e62, 0x4f1e8529, 0x98fc0571, + 0x3baa83d8, 0xec480380, 0xd7193478, 0x00fbb420, 0xa3ad3289, + 0x744fb2d1, 0x3e71399a, 0xe993b9c2, 0x4ac53f6b, 0x9d27bf33, + 0xdeb829fd, 0x095aa9a5, 0xaa0c2f0c, 0x7deeaf54, 0x37d0241f, + 0xe032a447, 0x436422ee, 0x9486a2b6, 0xc45b0f72, 0x13b98f2a, + 0xb0ef0983, 0x670d89db, 0x2d330290, 0xfad182c8, 0x59870461, + 0x8e658439, 0xcdfa12f7, 0x1a1892af, 0xb94e1406, 0x6eac945e, + 0x24921f15, 0xf3709f4d, 0x502619e4, 0x87c499bc, 0xf19d426c, + 0x267fc234, 0x8529449d, 0x52cbc4c5, 0x18f54f8e, 0xcf17cfd6, + 0x6c41497f, 0xbba3c927, 0xf83c5fe9, 0x2fdedfb1, 0x8c885918, + 0x5b6ad940, 0x1154520b, 0xc6b6d253, 0x65e054fa, 0xb202d4a2, + 0xe2df7966, 0x353df93e, 0x966b7f97, 0x4189ffcf, 0x0bb77484, + 0xdc55f4dc, 0x7f037275, 0xa8e1f22d, 0xeb7e64e3, 0x3c9ce4bb, + 0x9fca6212, 0x4828e24a, 0x02166901, 0xd5f4e959, 0x76a26ff0, + 0xa140efa8}, + {0x00000000, 0xef52b6e1, 0x05d46b83, 0xea86dd62, 0x0ba8d706, + 0xe4fa61e7, 0x0e7cbc85, 0xe12e0a64, 0x1751ae0c, 0xf80318ed, + 0x1285c58f, 0xfdd7736e, 0x1cf9790a, 0xf3abcfeb, 0x192d1289, + 0xf67fa468, 0x2ea35c18, 0xc1f1eaf9, 0x2b77379b, 0xc425817a, + 0x250b8b1e, 0xca593dff, 0x20dfe09d, 0xcf8d567c, 0x39f2f214, + 0xd6a044f5, 0x3c269997, 0xd3742f76, 0x325a2512, 0xdd0893f3, + 0x378e4e91, 0xd8dcf870, 0x5d46b830, 0xb2140ed1, 0x5892d3b3, + 0xb7c06552, 0x56ee6f36, 0xb9bcd9d7, 0x533a04b5, 0xbc68b254, + 0x4a17163c, 0xa545a0dd, 0x4fc37dbf, 0xa091cb5e, 0x41bfc13a, + 0xaeed77db, 0x446baab9, 0xab391c58, 0x73e5e428, 0x9cb752c9, + 0x76318fab, 0x9963394a, 0x784d332e, 0x971f85cf, 0x7d9958ad, + 0x92cbee4c, 0x64b44a24, 0x8be6fcc5, 0x616021a7, 0x8e329746, + 0x6f1c9d22, 0x804e2bc3, 0x6ac8f6a1, 0x859a4040, 0xba8d7060, + 0x55dfc681, 0xbf591be3, 0x500bad02, 0xb125a766, 0x5e771187, + 0xb4f1cce5, 0x5ba37a04, 0xaddcde6c, 0x428e688d, 0xa808b5ef, + 0x475a030e, 0xa674096a, 0x4926bf8b, 0xa3a062e9, 0x4cf2d408, + 0x942e2c78, 0x7b7c9a99, 0x91fa47fb, 0x7ea8f11a, 0x9f86fb7e, + 0x70d44d9f, 0x9a5290fd, 0x7500261c, 0x837f8274, 0x6c2d3495, + 0x86abe9f7, 0x69f95f16, 0x88d75572, 0x6785e393, 0x8d033ef1, + 0x62518810, 0xe7cbc850, 0x08997eb1, 0xe21fa3d3, 0x0d4d1532, + 0xec631f56, 0x0331a9b7, 0xe9b774d5, 0x06e5c234, 0xf09a665c, + 0x1fc8d0bd, 0xf54e0ddf, 0x1a1cbb3e, 0xfb32b15a, 0x146007bb, + 0xfee6dad9, 0x11b46c38, 0xc9689448, 0x263a22a9, 0xccbcffcb, + 0x23ee492a, 0xc2c0434e, 0x2d92f5af, 0xc71428cd, 0x28469e2c, + 0xde393a44, 0x316b8ca5, 0xdbed51c7, 0x34bfe726, 0xd591ed42, + 0x3ac35ba3, 0xd04586c1, 0x3f173020, 0xae6be681, 0x41395060, + 0xabbf8d02, 0x44ed3be3, 0xa5c33187, 0x4a918766, 0xa0175a04, + 0x4f45ece5, 0xb93a488d, 0x5668fe6c, 0xbcee230e, 0x53bc95ef, + 0xb2929f8b, 0x5dc0296a, 0xb746f408, 0x581442e9, 0x80c8ba99, + 0x6f9a0c78, 0x851cd11a, 0x6a4e67fb, 0x8b606d9f, 0x6432db7e, + 0x8eb4061c, 0x61e6b0fd, 0x97991495, 0x78cba274, 0x924d7f16, + 0x7d1fc9f7, 0x9c31c393, 0x73637572, 0x99e5a810, 0x76b71ef1, + 0xf32d5eb1, 0x1c7fe850, 0xf6f93532, 0x19ab83d3, 0xf88589b7, + 0x17d73f56, 0xfd51e234, 0x120354d5, 0xe47cf0bd, 0x0b2e465c, + 0xe1a89b3e, 0x0efa2ddf, 0xefd427bb, 0x0086915a, 0xea004c38, + 0x0552fad9, 0xdd8e02a9, 0x32dcb448, 0xd85a692a, 0x3708dfcb, + 0xd626d5af, 0x3974634e, 0xd3f2be2c, 0x3ca008cd, 0xcadfaca5, + 0x258d1a44, 0xcf0bc726, 0x205971c7, 0xc1777ba3, 0x2e25cd42, + 0xc4a31020, 0x2bf1a6c1, 0x14e696e1, 0xfbb42000, 0x1132fd62, + 0xfe604b83, 0x1f4e41e7, 0xf01cf706, 0x1a9a2a64, 0xf5c89c85, + 0x03b738ed, 0xece58e0c, 0x0663536e, 0xe931e58f, 0x081fefeb, + 0xe74d590a, 0x0dcb8468, 0xe2993289, 0x3a45caf9, 0xd5177c18, + 0x3f91a17a, 0xd0c3179b, 0x31ed1dff, 0xdebfab1e, 0x3439767c, + 0xdb6bc09d, 0x2d1464f5, 0xc246d214, 0x28c00f76, 0xc792b997, + 0x26bcb3f3, 0xc9ee0512, 0x2368d870, 0xcc3a6e91, 0x49a02ed1, + 0xa6f29830, 0x4c744552, 0xa326f3b3, 0x4208f9d7, 0xad5a4f36, + 0x47dc9254, 0xa88e24b5, 0x5ef180dd, 0xb1a3363c, 0x5b25eb5e, + 0xb4775dbf, 0x555957db, 0xba0be13a, 0x508d3c58, 0xbfdf8ab9, + 0x670372c9, 0x8851c428, 0x62d7194a, 0x8d85afab, 0x6caba5cf, + 0x83f9132e, 0x697fce4c, 0x862d78ad, 0x7052dcc5, 0x9f006a24, + 0x7586b746, 0x9ad401a7, 0x7bfa0bc3, 0x94a8bd22, 0x7e2e6040, + 0x917cd6a1}, + {0x00000000, 0x87a6cb43, 0xd43c90c7, 0x539a5b84, 0x730827cf, + 0xf4aeec8c, 0xa734b708, 0x20927c4b, 0xe6104f9e, 0x61b684dd, + 0x322cdf59, 0xb58a141a, 0x95186851, 0x12bea312, 0x4124f896, + 0xc68233d5, 0x1751997d, 0x90f7523e, 0xc36d09ba, 0x44cbc2f9, + 0x6459beb2, 0xe3ff75f1, 0xb0652e75, 0x37c3e536, 0xf141d6e3, + 0x76e71da0, 0x257d4624, 0xa2db8d67, 0x8249f12c, 0x05ef3a6f, + 0x567561eb, 0xd1d3aaa8, 0x2ea332fa, 0xa905f9b9, 0xfa9fa23d, + 0x7d39697e, 0x5dab1535, 0xda0dde76, 0x899785f2, 0x0e314eb1, + 0xc8b37d64, 0x4f15b627, 0x1c8feda3, 0x9b2926e0, 0xbbbb5aab, + 0x3c1d91e8, 0x6f87ca6c, 0xe821012f, 0x39f2ab87, 0xbe5460c4, + 0xedce3b40, 0x6a68f003, 0x4afa8c48, 0xcd5c470b, 0x9ec61c8f, + 0x1960d7cc, 0xdfe2e419, 0x58442f5a, 0x0bde74de, 0x8c78bf9d, + 0xaceac3d6, 0x2b4c0895, 0x78d65311, 0xff709852, 0x5d4665f4, + 0xdae0aeb7, 0x897af533, 0x0edc3e70, 0x2e4e423b, 0xa9e88978, + 0xfa72d2fc, 0x7dd419bf, 0xbb562a6a, 0x3cf0e129, 0x6f6abaad, + 0xe8cc71ee, 0xc85e0da5, 0x4ff8c6e6, 0x1c629d62, 0x9bc45621, + 0x4a17fc89, 0xcdb137ca, 0x9e2b6c4e, 0x198da70d, 0x391fdb46, + 0xbeb91005, 0xed234b81, 0x6a8580c2, 0xac07b317, 0x2ba17854, + 0x783b23d0, 0xff9de893, 0xdf0f94d8, 0x58a95f9b, 0x0b33041f, + 0x8c95cf5c, 0x73e5570e, 0xf4439c4d, 0xa7d9c7c9, 0x207f0c8a, + 0x00ed70c1, 0x874bbb82, 0xd4d1e006, 0x53772b45, 0x95f51890, + 0x1253d3d3, 0x41c98857, 0xc66f4314, 0xe6fd3f5f, 0x615bf41c, + 0x32c1af98, 0xb56764db, 0x64b4ce73, 0xe3120530, 0xb0885eb4, + 0x372e95f7, 0x17bce9bc, 0x901a22ff, 0xc380797b, 0x4426b238, + 0x82a481ed, 0x05024aae, 0x5698112a, 0xd13eda69, 0xf1aca622, + 0x760a6d61, 0x259036e5, 0xa236fda6, 0xba8ccbe8, 0x3d2a00ab, + 0x6eb05b2f, 0xe916906c, 0xc984ec27, 0x4e222764, 0x1db87ce0, + 0x9a1eb7a3, 0x5c9c8476, 0xdb3a4f35, 0x88a014b1, 0x0f06dff2, + 0x2f94a3b9, 0xa83268fa, 0xfba8337e, 0x7c0ef83d, 0xaddd5295, + 0x2a7b99d6, 0x79e1c252, 0xfe470911, 0xded5755a, 0x5973be19, + 0x0ae9e59d, 0x8d4f2ede, 0x4bcd1d0b, 0xcc6bd648, 0x9ff18dcc, + 0x1857468f, 0x38c53ac4, 0xbf63f187, 0xecf9aa03, 0x6b5f6140, + 0x942ff912, 0x13893251, 0x401369d5, 0xc7b5a296, 0xe727dedd, + 0x6081159e, 0x331b4e1a, 0xb4bd8559, 0x723fb68c, 0xf5997dcf, + 0xa603264b, 0x21a5ed08, 0x01379143, 0x86915a00, 0xd50b0184, + 0x52adcac7, 0x837e606f, 0x04d8ab2c, 0x5742f0a8, 0xd0e43beb, + 0xf07647a0, 0x77d08ce3, 0x244ad767, 0xa3ec1c24, 0x656e2ff1, + 0xe2c8e4b2, 0xb152bf36, 0x36f47475, 0x1666083e, 0x91c0c37d, + 0xc25a98f9, 0x45fc53ba, 0xe7caae1c, 0x606c655f, 0x33f63edb, + 0xb450f598, 0x94c289d3, 0x13644290, 0x40fe1914, 0xc758d257, + 0x01dae182, 0x867c2ac1, 0xd5e67145, 0x5240ba06, 0x72d2c64d, + 0xf5740d0e, 0xa6ee568a, 0x21489dc9, 0xf09b3761, 0x773dfc22, + 0x24a7a7a6, 0xa3016ce5, 0x839310ae, 0x0435dbed, 0x57af8069, + 0xd0094b2a, 0x168b78ff, 0x912db3bc, 0xc2b7e838, 0x4511237b, + 0x65835f30, 0xe2259473, 0xb1bfcff7, 0x361904b4, 0xc9699ce6, + 0x4ecf57a5, 0x1d550c21, 0x9af3c762, 0xba61bb29, 0x3dc7706a, + 0x6e5d2bee, 0xe9fbe0ad, 0x2f79d378, 0xa8df183b, 0xfb4543bf, + 0x7ce388fc, 0x5c71f4b7, 0xdbd73ff4, 0x884d6470, 0x0febaf33, + 0xde38059b, 0x599eced8, 0x0a04955c, 0x8da25e1f, 0xad302254, + 0x2a96e917, 0x790cb293, 0xfeaa79d0, 0x38284a05, 0xbf8e8146, + 0xec14dac2, 0x6bb21181, 0x4b206dca, 0xcc86a689, 0x9f1cfd0d, + 0x18ba364e}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0x43cba68700000000, 0xc7903cd400000000, + 0x845b9a5300000000, 0xcf27087300000000, 0x8cecaef400000000, + 0x08b734a700000000, 0x4b7c922000000000, 0x9e4f10e600000000, + 0xdd84b66100000000, 0x59df2c3200000000, 0x1a148ab500000000, + 0x5168189500000000, 0x12a3be1200000000, 0x96f8244100000000, + 0xd53382c600000000, 0x7d99511700000000, 0x3e52f79000000000, + 0xba096dc300000000, 0xf9c2cb4400000000, 0xb2be596400000000, + 0xf175ffe300000000, 0x752e65b000000000, 0x36e5c33700000000, + 0xe3d641f100000000, 0xa01de77600000000, 0x24467d2500000000, + 0x678ddba200000000, 0x2cf1498200000000, 0x6f3aef0500000000, + 0xeb61755600000000, 0xa8aad3d100000000, 0xfa32a32e00000000, + 0xb9f905a900000000, 0x3da29ffa00000000, 0x7e69397d00000000, + 0x3515ab5d00000000, 0x76de0dda00000000, 0xf285978900000000, + 0xb14e310e00000000, 0x647db3c800000000, 0x27b6154f00000000, + 0xa3ed8f1c00000000, 0xe026299b00000000, 0xab5abbbb00000000, + 0xe8911d3c00000000, 0x6cca876f00000000, 0x2f0121e800000000, + 0x87abf23900000000, 0xc46054be00000000, 0x403bceed00000000, + 0x03f0686a00000000, 0x488cfa4a00000000, 0x0b475ccd00000000, + 0x8f1cc69e00000000, 0xccd7601900000000, 0x19e4e2df00000000, + 0x5a2f445800000000, 0xde74de0b00000000, 0x9dbf788c00000000, + 0xd6c3eaac00000000, 0x95084c2b00000000, 0x1153d67800000000, + 0x529870ff00000000, 0xf465465d00000000, 0xb7aee0da00000000, + 0x33f57a8900000000, 0x703edc0e00000000, 0x3b424e2e00000000, + 0x7889e8a900000000, 0xfcd272fa00000000, 0xbf19d47d00000000, + 0x6a2a56bb00000000, 0x29e1f03c00000000, 0xadba6a6f00000000, + 0xee71cce800000000, 0xa50d5ec800000000, 0xe6c6f84f00000000, + 0x629d621c00000000, 0x2156c49b00000000, 0x89fc174a00000000, + 0xca37b1cd00000000, 0x4e6c2b9e00000000, 0x0da78d1900000000, + 0x46db1f3900000000, 0x0510b9be00000000, 0x814b23ed00000000, + 0xc280856a00000000, 0x17b307ac00000000, 0x5478a12b00000000, + 0xd0233b7800000000, 0x93e89dff00000000, 0xd8940fdf00000000, + 0x9b5fa95800000000, 0x1f04330b00000000, 0x5ccf958c00000000, + 0x0e57e57300000000, 0x4d9c43f400000000, 0xc9c7d9a700000000, + 0x8a0c7f2000000000, 0xc170ed0000000000, 0x82bb4b8700000000, + 0x06e0d1d400000000, 0x452b775300000000, 0x9018f59500000000, + 0xd3d3531200000000, 0x5788c94100000000, 0x14436fc600000000, + 0x5f3ffde600000000, 0x1cf45b6100000000, 0x98afc13200000000, + 0xdb6467b500000000, 0x73ceb46400000000, 0x300512e300000000, + 0xb45e88b000000000, 0xf7952e3700000000, 0xbce9bc1700000000, + 0xff221a9000000000, 0x7b7980c300000000, 0x38b2264400000000, + 0xed81a48200000000, 0xae4a020500000000, 0x2a11985600000000, + 0x69da3ed100000000, 0x22a6acf100000000, 0x616d0a7600000000, + 0xe536902500000000, 0xa6fd36a200000000, 0xe8cb8cba00000000, + 0xab002a3d00000000, 0x2f5bb06e00000000, 0x6c9016e900000000, + 0x27ec84c900000000, 0x6427224e00000000, 0xe07cb81d00000000, + 0xa3b71e9a00000000, 0x76849c5c00000000, 0x354f3adb00000000, + 0xb114a08800000000, 0xf2df060f00000000, 0xb9a3942f00000000, + 0xfa6832a800000000, 0x7e33a8fb00000000, 0x3df80e7c00000000, + 0x9552ddad00000000, 0xd6997b2a00000000, 0x52c2e17900000000, + 0x110947fe00000000, 0x5a75d5de00000000, 0x19be735900000000, + 0x9de5e90a00000000, 0xde2e4f8d00000000, 0x0b1dcd4b00000000, + 0x48d66bcc00000000, 0xcc8df19f00000000, 0x8f46571800000000, + 0xc43ac53800000000, 0x87f163bf00000000, 0x03aaf9ec00000000, + 0x40615f6b00000000, 0x12f92f9400000000, 0x5132891300000000, + 0xd569134000000000, 0x96a2b5c700000000, 0xddde27e700000000, + 0x9e15816000000000, 0x1a4e1b3300000000, 0x5985bdb400000000, + 0x8cb63f7200000000, 0xcf7d99f500000000, 0x4b2603a600000000, + 0x08eda52100000000, 0x4391370100000000, 0x005a918600000000, + 0x84010bd500000000, 0xc7caad5200000000, 0x6f607e8300000000, + 0x2cabd80400000000, 0xa8f0425700000000, 0xeb3be4d000000000, + 0xa04776f000000000, 0xe38cd07700000000, 0x67d74a2400000000, + 0x241ceca300000000, 0xf12f6e6500000000, 0xb2e4c8e200000000, + 0x36bf52b100000000, 0x7574f43600000000, 0x3e08661600000000, + 0x7dc3c09100000000, 0xf9985ac200000000, 0xba53fc4500000000, + 0x1caecae700000000, 0x5f656c6000000000, 0xdb3ef63300000000, + 0x98f550b400000000, 0xd389c29400000000, 0x9042641300000000, + 0x1419fe4000000000, 0x57d258c700000000, 0x82e1da0100000000, + 0xc12a7c8600000000, 0x4571e6d500000000, 0x06ba405200000000, + 0x4dc6d27200000000, 0x0e0d74f500000000, 0x8a56eea600000000, + 0xc99d482100000000, 0x61379bf000000000, 0x22fc3d7700000000, + 0xa6a7a72400000000, 0xe56c01a300000000, 0xae10938300000000, + 0xeddb350400000000, 0x6980af5700000000, 0x2a4b09d000000000, + 0xff788b1600000000, 0xbcb32d9100000000, 0x38e8b7c200000000, + 0x7b23114500000000, 0x305f836500000000, 0x739425e200000000, + 0xf7cfbfb100000000, 0xb404193600000000, 0xe69c69c900000000, + 0xa557cf4e00000000, 0x210c551d00000000, 0x62c7f39a00000000, + 0x29bb61ba00000000, 0x6a70c73d00000000, 0xee2b5d6e00000000, + 0xade0fbe900000000, 0x78d3792f00000000, 0x3b18dfa800000000, + 0xbf4345fb00000000, 0xfc88e37c00000000, 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0xd5d0710b00000000, + 0x013a029000000000, 0x3c03e7e600000000, 0xe8e9947d00000000, + 0x2cb4e60a00000000, 0xf85e959100000000, 0xc56770e700000000, + 0x118d037c00000000, 0xbf15ba0a00000000, 0x6bffc99100000000, + 0x56c62ce700000000, 0x822c5f7c00000000, 0x0af75f0a00000000, + 0xde1d2c9100000000, 0xe324c9e700000000, 0x37ceba7c00000000, + 0x9956030a00000000, 0x4dbc709100000000, 0x708595e700000000, + 0xa46fe67c00000000, 0xf83e710900000000, 0x2cd4029200000000, + 0x11ede7e400000000, 0xc507947f00000000, 0x6b9f2d0900000000, + 0xbf755e9200000000, 0x824cbbe400000000, 0x56a6c87f00000000, + 0xde7dc80900000000, 0x0a97bb9200000000, 0x37ae5ee400000000, + 0xe3442d7f00000000, 0x4ddc940900000000, 0x9936e79200000000, + 0xa40f02e400000000, 0x70e5717f00000000, 0xb4b8030800000000, + 0x6052709300000000, 0x5d6b95e500000000, 0x8981e67e00000000, + 0x27195f0800000000, 0xf3f32c9300000000, 0xcecac9e500000000, + 0x1a20ba7e00000000, 0x92fbba0800000000, 0x4611c99300000000, + 0x7b282ce500000000, 0xafc25f7e00000000, 0x015ae60800000000, + 0xd5b0959300000000, 0xe88970e500000000, 0x3c63037e00000000, + 0x502b5e0e00000000, 0x84c12d9500000000, 0xb9f8c8e300000000, + 0x6d12bb7800000000, 0xc38a020e00000000, 0x1760719500000000, + 0x2a5994e300000000, 0xfeb3e77800000000, 0x7668e70e00000000, + 0xa282949500000000, 0x9fbb71e300000000, 0x4b51027800000000, + 0xe5c9bb0e00000000, 0x3123c89500000000, 0x0c1a2de300000000, + 0xd8f05e7800000000, 0x1cad2c0f00000000, 0xc8475f9400000000, + 0xf57ebae200000000, 0x2194c97900000000, 0x8f0c700f00000000, + 0x5be6039400000000, 0x66dfe6e200000000, 0xb235957900000000, + 0x3aee950f00000000, 0xee04e69400000000, 0xd33d03e200000000, + 0x07d7707900000000, 0xa94fc90f00000000, 0x7da5ba9400000000, + 0x409c5fe200000000, 0x94762c7900000000, 0xc827bb0c00000000, + 0x1ccdc89700000000, 0x21f42de100000000, 0xf51e5e7a00000000, + 0x5b86e70c00000000, 0x8f6c949700000000, 0xb25571e100000000, + 0x66bf027a00000000, 0xee64020c00000000, 0x3a8e719700000000, + 0x07b794e100000000, 0xd35de77a00000000, 0x7dc55e0c00000000, + 0xa92f2d9700000000, 0x9416c8e100000000, 0x40fcbb7a00000000, + 0x84a1c90d00000000, 0x504bba9600000000, 0x6d725fe000000000, + 0xb9982c7b00000000, 0x1700950d00000000, 0xc3eae69600000000, + 0xfed303e000000000, 0x2a39707b00000000, 0xa2e2700d00000000, + 0x7608039600000000, 0x4b31e6e000000000, 0x9fdb957b00000000, + 0x31432c0d00000000, 0xe5a95f9600000000, 0xd890bae000000000, + 0x0c7ac97b00000000}, + {0x0000000000000000, 0x2765258100000000, 0x0fcc3bd900000000, + 0x28a91e5800000000, 0x5f9e066900000000, 0x78fb23e800000000, + 0x50523db000000000, 0x7737183100000000, 0xbe3c0dd200000000, + 0x9959285300000000, 0xb1f0360b00000000, 0x9695138a00000000, + 0xe1a20bbb00000000, 0xc6c72e3a00000000, 0xee6e306200000000, + 0xc90b15e300000000, 0x3d7f6b7f00000000, 0x1a1a4efe00000000, + 0x32b350a600000000, 0x15d6752700000000, 0x62e16d1600000000, + 0x4584489700000000, 0x6d2d56cf00000000, 0x4a48734e00000000, + 0x834366ad00000000, 0xa426432c00000000, 0x8c8f5d7400000000, + 0xabea78f500000000, 0xdcdd60c400000000, 0xfbb8454500000000, + 0xd3115b1d00000000, 0xf4747e9c00000000, 0x7afed6fe00000000, + 0x5d9bf37f00000000, 0x7532ed2700000000, 0x5257c8a600000000, + 0x2560d09700000000, 0x0205f51600000000, 0x2aaceb4e00000000, + 0x0dc9cecf00000000, 0xc4c2db2c00000000, 0xe3a7fead00000000, + 0xcb0ee0f500000000, 0xec6bc57400000000, 0x9b5cdd4500000000, + 0xbc39f8c400000000, 0x9490e69c00000000, 0xb3f5c31d00000000, + 0x4781bd8100000000, 0x60e4980000000000, 0x484d865800000000, + 0x6f28a3d900000000, 0x181fbbe800000000, 0x3f7a9e6900000000, + 0x17d3803100000000, 0x30b6a5b000000000, 0xf9bdb05300000000, + 0xded895d200000000, 0xf6718b8a00000000, 0xd114ae0b00000000, + 0xa623b63a00000000, 0x814693bb00000000, 0xa9ef8de300000000, + 0x8e8aa86200000000, 0xb5fadc2600000000, 0x929ff9a700000000, + 0xba36e7ff00000000, 0x9d53c27e00000000, 0xea64da4f00000000, + 0xcd01ffce00000000, 0xe5a8e19600000000, 0xc2cdc41700000000, + 0x0bc6d1f400000000, 0x2ca3f47500000000, 0x040aea2d00000000, + 0x236fcfac00000000, 0x5458d79d00000000, 0x733df21c00000000, + 0x5b94ec4400000000, 0x7cf1c9c500000000, 0x8885b75900000000, + 0xafe092d800000000, 0x87498c8000000000, 0xa02ca90100000000, + 0xd71bb13000000000, 0xf07e94b100000000, 0xd8d78ae900000000, + 0xffb2af6800000000, 0x36b9ba8b00000000, 0x11dc9f0a00000000, + 0x3975815200000000, 0x1e10a4d300000000, 0x6927bce200000000, + 0x4e42996300000000, 0x66eb873b00000000, 0x418ea2ba00000000, + 0xcf040ad800000000, 0xe8612f5900000000, 0xc0c8310100000000, + 0xe7ad148000000000, 0x909a0cb100000000, 0xb7ff293000000000, + 0x9f56376800000000, 0xb83312e900000000, 0x7138070a00000000, + 0x565d228b00000000, 0x7ef43cd300000000, 0x5991195200000000, + 0x2ea6016300000000, 0x09c324e200000000, 0x216a3aba00000000, + 0x060f1f3b00000000, 0xf27b61a700000000, 0xd51e442600000000, + 0xfdb75a7e00000000, 0xdad27fff00000000, 0xade567ce00000000, + 0x8a80424f00000000, 0xa2295c1700000000, 0x854c799600000000, + 0x4c476c7500000000, 0x6b2249f400000000, 0x438b57ac00000000, + 0x64ee722d00000000, 0x13d96a1c00000000, 0x34bc4f9d00000000, + 0x1c1551c500000000, 0x3b70744400000000, 0x6af5b94d00000000, + 0x4d909ccc00000000, 0x6539829400000000, 0x425ca71500000000, + 0x356bbf2400000000, 0x120e9aa500000000, 0x3aa784fd00000000, + 0x1dc2a17c00000000, 0xd4c9b49f00000000, 0xf3ac911e00000000, + 0xdb058f4600000000, 0xfc60aac700000000, 0x8b57b2f600000000, + 0xac32977700000000, 0x849b892f00000000, 0xa3feacae00000000, + 0x578ad23200000000, 0x70eff7b300000000, 0x5846e9eb00000000, + 0x7f23cc6a00000000, 0x0814d45b00000000, 0x2f71f1da00000000, + 0x07d8ef8200000000, 0x20bdca0300000000, 0xe9b6dfe000000000, + 0xced3fa6100000000, 0xe67ae43900000000, 0xc11fc1b800000000, + 0xb628d98900000000, 0x914dfc0800000000, 0xb9e4e25000000000, + 0x9e81c7d100000000, 0x100b6fb300000000, 0x376e4a3200000000, + 0x1fc7546a00000000, 0x38a271eb00000000, 0x4f9569da00000000, + 0x68f04c5b00000000, 0x4059520300000000, 0x673c778200000000, + 0xae37626100000000, 0x895247e000000000, 0xa1fb59b800000000, + 0x869e7c3900000000, 0xf1a9640800000000, 0xd6cc418900000000, + 0xfe655fd100000000, 0xd9007a5000000000, 0x2d7404cc00000000, + 0x0a11214d00000000, 0x22b83f1500000000, 0x05dd1a9400000000, + 0x72ea02a500000000, 0x558f272400000000, 0x7d26397c00000000, + 0x5a431cfd00000000, 0x9348091e00000000, 0xb42d2c9f00000000, + 0x9c8432c700000000, 0xbbe1174600000000, 0xccd60f7700000000, + 0xebb32af600000000, 0xc31a34ae00000000, 0xe47f112f00000000, + 0xdf0f656b00000000, 0xf86a40ea00000000, 0xd0c35eb200000000, + 0xf7a67b3300000000, 0x8091630200000000, 0xa7f4468300000000, + 0x8f5d58db00000000, 0xa8387d5a00000000, 0x613368b900000000, + 0x46564d3800000000, 0x6eff536000000000, 0x499a76e100000000, + 0x3ead6ed000000000, 0x19c84b5100000000, 0x3161550900000000, + 0x1604708800000000, 0xe2700e1400000000, 0xc5152b9500000000, + 0xedbc35cd00000000, 0xcad9104c00000000, 0xbdee087d00000000, + 0x9a8b2dfc00000000, 0xb22233a400000000, 0x9547162500000000, + 0x5c4c03c600000000, 0x7b29264700000000, 0x5380381f00000000, + 0x74e51d9e00000000, 0x03d205af00000000, 0x24b7202e00000000, + 0x0c1e3e7600000000, 0x2b7b1bf700000000, 0xa5f1b39500000000, + 0x8294961400000000, 0xaa3d884c00000000, 0x8d58adcd00000000, + 0xfa6fb5fc00000000, 0xdd0a907d00000000, 0xf5a38e2500000000, + 0xd2c6aba400000000, 0x1bcdbe4700000000, 0x3ca89bc600000000, + 0x1401859e00000000, 0x3364a01f00000000, 0x4453b82e00000000, + 0x63369daf00000000, 0x4b9f83f700000000, 0x6cfaa67600000000, + 0x988ed8ea00000000, 0xbfebfd6b00000000, 0x9742e33300000000, + 0xb027c6b200000000, 0xc710de8300000000, 0xe075fb0200000000, + 0xc8dce55a00000000, 0xefb9c0db00000000, 0x26b2d53800000000, + 0x01d7f0b900000000, 0x297eeee100000000, 0x0e1bcb6000000000, + 0x792cd35100000000, 0x5e49f6d000000000, 0x76e0e88800000000, + 0x5185cd0900000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0x9ba54c6f, 0xec3b9e9f, 0x779ed2f0, 0x03063b7f, + 0x98a37710, 0xef3da5e0, 0x7498e98f, 0x060c76fe, 0x9da93a91, + 0xea37e861, 0x7192a40e, 0x050a4d81, 0x9eaf01ee, 0xe931d31e, + 0x72949f71, 0x0c18edfc, 0x97bda193, 0xe0237363, 0x7b863f0c, + 0x0f1ed683, 0x94bb9aec, 0xe325481c, 0x78800473, 0x0a149b02, + 0x91b1d76d, 0xe62f059d, 0x7d8a49f2, 0x0912a07d, 0x92b7ec12, + 0xe5293ee2, 0x7e8c728d, 0x1831dbf8, 0x83949797, 0xf40a4567, + 0x6faf0908, 0x1b37e087, 0x8092ace8, 0xf70c7e18, 0x6ca93277, + 0x1e3dad06, 0x8598e169, 0xf2063399, 0x69a37ff6, 0x1d3b9679, + 0x869eda16, 0xf10008e6, 0x6aa54489, 0x14293604, 0x8f8c7a6b, + 0xf812a89b, 0x63b7e4f4, 0x172f0d7b, 0x8c8a4114, 0xfb1493e4, + 0x60b1df8b, 0x122540fa, 0x89800c95, 0xfe1ede65, 0x65bb920a, + 0x11237b85, 0x8a8637ea, 0xfd18e51a, 0x66bda975, 0x3063b7f0, + 0xabc6fb9f, 0xdc58296f, 0x47fd6500, 0x33658c8f, 0xa8c0c0e0, + 0xdf5e1210, 0x44fb5e7f, 0x366fc10e, 0xadca8d61, 0xda545f91, + 0x41f113fe, 0x3569fa71, 0xaeccb61e, 0xd95264ee, 0x42f72881, + 0x3c7b5a0c, 0xa7de1663, 0xd040c493, 0x4be588fc, 0x3f7d6173, + 0xa4d82d1c, 0xd346ffec, 0x48e3b383, 0x3a772cf2, 0xa1d2609d, + 0xd64cb26d, 0x4de9fe02, 0x3971178d, 0xa2d45be2, 0xd54a8912, + 0x4eefc57d, 0x28526c08, 0xb3f72067, 0xc469f297, 0x5fccbef8, + 0x2b545777, 0xb0f11b18, 0xc76fc9e8, 0x5cca8587, 0x2e5e1af6, + 0xb5fb5699, 0xc2658469, 0x59c0c806, 0x2d582189, 0xb6fd6de6, + 0xc163bf16, 0x5ac6f379, 0x244a81f4, 0xbfefcd9b, 0xc8711f6b, + 0x53d45304, 0x274cba8b, 0xbce9f6e4, 0xcb772414, 0x50d2687b, + 0x2246f70a, 0xb9e3bb65, 0xce7d6995, 0x55d825fa, 0x2140cc75, + 0xbae5801a, 0xcd7b52ea, 0x56de1e85, 0x60c76fe0, 0xfb62238f, + 0x8cfcf17f, 0x1759bd10, 0x63c1549f, 0xf86418f0, 0x8ffaca00, + 0x145f866f, 0x66cb191e, 0xfd6e5571, 0x8af08781, 0x1155cbee, + 0x65cd2261, 0xfe686e0e, 0x89f6bcfe, 0x1253f091, 0x6cdf821c, + 0xf77ace73, 0x80e41c83, 0x1b4150ec, 0x6fd9b963, 0xf47cf50c, + 0x83e227fc, 0x18476b93, 0x6ad3f4e2, 0xf176b88d, 0x86e86a7d, + 0x1d4d2612, 0x69d5cf9d, 0xf27083f2, 0x85ee5102, 0x1e4b1d6d, + 0x78f6b418, 0xe353f877, 0x94cd2a87, 0x0f6866e8, 0x7bf08f67, + 0xe055c308, 0x97cb11f8, 0x0c6e5d97, 0x7efac2e6, 0xe55f8e89, + 0x92c15c79, 0x09641016, 0x7dfcf999, 0xe659b5f6, 0x91c76706, + 0x0a622b69, 0x74ee59e4, 0xef4b158b, 0x98d5c77b, 0x03708b14, + 0x77e8629b, 0xec4d2ef4, 0x9bd3fc04, 0x0076b06b, 0x72e22f1a, + 0xe9476375, 0x9ed9b185, 0x057cfdea, 0x71e41465, 0xea41580a, + 0x9ddf8afa, 0x067ac695, 0x50a4d810, 0xcb01947f, 0xbc9f468f, + 0x273a0ae0, 0x53a2e36f, 0xc807af00, 0xbf997df0, 0x243c319f, + 0x56a8aeee, 0xcd0de281, 0xba933071, 0x21367c1e, 0x55ae9591, + 0xce0bd9fe, 0xb9950b0e, 0x22304761, 0x5cbc35ec, 0xc7197983, + 0xb087ab73, 0x2b22e71c, 0x5fba0e93, 0xc41f42fc, 0xb381900c, + 0x2824dc63, 0x5ab04312, 0xc1150f7d, 0xb68bdd8d, 0x2d2e91e2, + 0x59b6786d, 0xc2133402, 0xb58de6f2, 0x2e28aa9d, 0x489503e8, + 0xd3304f87, 0xa4ae9d77, 0x3f0bd118, 0x4b933897, 0xd03674f8, + 0xa7a8a608, 0x3c0dea67, 0x4e997516, 0xd53c3979, 0xa2a2eb89, + 0x3907a7e6, 0x4d9f4e69, 0xd63a0206, 0xa1a4d0f6, 0x3a019c99, + 0x448dee14, 0xdf28a27b, 0xa8b6708b, 0x33133ce4, 0x478bd56b, + 0xdc2e9904, 0xabb04bf4, 0x3015079b, 0x428198ea, 0xd924d485, + 0xaeba0675, 0x351f4a1a, 0x4187a395, 0xda22effa, 0xadbc3d0a, + 0x36197165}, + {0x00000000, 0xc18edfc0, 0x586cb9c1, 0x99e26601, 0xb0d97382, + 0x7157ac42, 0xe8b5ca43, 0x293b1583, 0xbac3e145, 0x7b4d3e85, + 0xe2af5884, 0x23218744, 0x0a1a92c7, 0xcb944d07, 0x52762b06, + 0x93f8f4c6, 0xaef6c4cb, 0x6f781b0b, 0xf69a7d0a, 0x3714a2ca, + 0x1e2fb749, 0xdfa16889, 0x46430e88, 0x87cdd148, 0x1435258e, + 0xd5bbfa4e, 0x4c599c4f, 0x8dd7438f, 0xa4ec560c, 0x656289cc, + 0xfc80efcd, 0x3d0e300d, 0x869c8fd7, 0x47125017, 0xdef03616, + 0x1f7ee9d6, 0x3645fc55, 0xf7cb2395, 0x6e294594, 0xafa79a54, + 0x3c5f6e92, 0xfdd1b152, 0x6433d753, 0xa5bd0893, 0x8c861d10, + 0x4d08c2d0, 0xd4eaa4d1, 0x15647b11, 0x286a4b1c, 0xe9e494dc, + 0x7006f2dd, 0xb1882d1d, 0x98b3389e, 0x593de75e, 0xc0df815f, + 0x01515e9f, 0x92a9aa59, 0x53277599, 0xcac51398, 0x0b4bcc58, + 0x2270d9db, 0xe3fe061b, 0x7a1c601a, 0xbb92bfda, 0xd64819ef, + 0x17c6c62f, 0x8e24a02e, 0x4faa7fee, 0x66916a6d, 0xa71fb5ad, + 0x3efdd3ac, 0xff730c6c, 0x6c8bf8aa, 0xad05276a, 0x34e7416b, + 0xf5699eab, 0xdc528b28, 0x1ddc54e8, 0x843e32e9, 0x45b0ed29, + 0x78bedd24, 0xb93002e4, 0x20d264e5, 0xe15cbb25, 0xc867aea6, + 0x09e97166, 0x900b1767, 0x5185c8a7, 0xc27d3c61, 0x03f3e3a1, + 0x9a1185a0, 0x5b9f5a60, 0x72a44fe3, 0xb32a9023, 0x2ac8f622, + 0xeb4629e2, 0x50d49638, 0x915a49f8, 0x08b82ff9, 0xc936f039, + 0xe00de5ba, 0x21833a7a, 0xb8615c7b, 0x79ef83bb, 0xea17777d, + 0x2b99a8bd, 0xb27bcebc, 0x73f5117c, 0x5ace04ff, 0x9b40db3f, + 0x02a2bd3e, 0xc32c62fe, 0xfe2252f3, 0x3fac8d33, 0xa64eeb32, + 0x67c034f2, 0x4efb2171, 0x8f75feb1, 0x169798b0, 0xd7194770, + 0x44e1b3b6, 0x856f6c76, 0x1c8d0a77, 0xdd03d5b7, 0xf438c034, + 0x35b61ff4, 0xac5479f5, 0x6ddaa635, 0x77e1359f, 0xb66fea5f, + 0x2f8d8c5e, 0xee03539e, 0xc738461d, 0x06b699dd, 0x9f54ffdc, + 0x5eda201c, 0xcd22d4da, 0x0cac0b1a, 0x954e6d1b, 0x54c0b2db, + 0x7dfba758, 0xbc757898, 0x25971e99, 0xe419c159, 0xd917f154, + 0x18992e94, 0x817b4895, 0x40f59755, 0x69ce82d6, 0xa8405d16, + 0x31a23b17, 0xf02ce4d7, 0x63d41011, 0xa25acfd1, 0x3bb8a9d0, + 0xfa367610, 0xd30d6393, 0x1283bc53, 0x8b61da52, 0x4aef0592, + 0xf17dba48, 0x30f36588, 0xa9110389, 0x689fdc49, 0x41a4c9ca, + 0x802a160a, 0x19c8700b, 0xd846afcb, 0x4bbe5b0d, 0x8a3084cd, + 0x13d2e2cc, 0xd25c3d0c, 0xfb67288f, 0x3ae9f74f, 0xa30b914e, + 0x62854e8e, 0x5f8b7e83, 0x9e05a143, 0x07e7c742, 0xc6691882, + 0xef520d01, 0x2edcd2c1, 0xb73eb4c0, 0x76b06b00, 0xe5489fc6, + 0x24c64006, 0xbd242607, 0x7caaf9c7, 0x5591ec44, 0x941f3384, + 0x0dfd5585, 0xcc738a45, 0xa1a92c70, 0x6027f3b0, 0xf9c595b1, + 0x384b4a71, 0x11705ff2, 0xd0fe8032, 0x491ce633, 0x889239f3, + 0x1b6acd35, 0xdae412f5, 0x430674f4, 0x8288ab34, 0xabb3beb7, + 0x6a3d6177, 0xf3df0776, 0x3251d8b6, 0x0f5fe8bb, 0xced1377b, + 0x5733517a, 0x96bd8eba, 0xbf869b39, 0x7e0844f9, 0xe7ea22f8, + 0x2664fd38, 0xb59c09fe, 0x7412d63e, 0xedf0b03f, 0x2c7e6fff, + 0x05457a7c, 0xc4cba5bc, 0x5d29c3bd, 0x9ca71c7d, 0x2735a3a7, + 0xe6bb7c67, 0x7f591a66, 0xbed7c5a6, 0x97ecd025, 0x56620fe5, + 0xcf8069e4, 0x0e0eb624, 0x9df642e2, 0x5c789d22, 0xc59afb23, + 0x041424e3, 0x2d2f3160, 0xeca1eea0, 0x754388a1, 0xb4cd5761, + 0x89c3676c, 0x484db8ac, 0xd1afdead, 0x1021016d, 0x391a14ee, + 0xf894cb2e, 0x6176ad2f, 0xa0f872ef, 0x33008629, 0xf28e59e9, + 0x6b6c3fe8, 0xaae2e028, 0x83d9f5ab, 0x42572a6b, 0xdbb54c6a, + 0x1a3b93aa}, + {0x00000000, 0xefc26b3e, 0x04f5d03d, 0xeb37bb03, 0x09eba07a, + 0xe629cb44, 0x0d1e7047, 0xe2dc1b79, 0x13d740f4, 0xfc152bca, + 0x172290c9, 0xf8e0fbf7, 0x1a3ce08e, 0xf5fe8bb0, 0x1ec930b3, + 0xf10b5b8d, 0x27ae81e8, 0xc86cead6, 0x235b51d5, 0xcc993aeb, + 0x2e452192, 0xc1874aac, 0x2ab0f1af, 0xc5729a91, 0x3479c11c, + 0xdbbbaa22, 0x308c1121, 0xdf4e7a1f, 0x3d926166, 0xd2500a58, + 0x3967b15b, 0xd6a5da65, 0x4f5d03d0, 0xa09f68ee, 0x4ba8d3ed, + 0xa46ab8d3, 0x46b6a3aa, 0xa974c894, 0x42437397, 0xad8118a9, + 0x5c8a4324, 0xb348281a, 0x587f9319, 0xb7bdf827, 0x5561e35e, + 0xbaa38860, 0x51943363, 0xbe56585d, 0x68f38238, 0x8731e906, + 0x6c065205, 0x83c4393b, 0x61182242, 0x8eda497c, 0x65edf27f, + 0x8a2f9941, 0x7b24c2cc, 0x94e6a9f2, 0x7fd112f1, 0x901379cf, + 0x72cf62b6, 0x9d0d0988, 0x763ab28b, 0x99f8d9b5, 0x9eba07a0, + 0x71786c9e, 0x9a4fd79d, 0x758dbca3, 0x9751a7da, 0x7893cce4, + 0x93a477e7, 0x7c661cd9, 0x8d6d4754, 0x62af2c6a, 0x89989769, + 0x665afc57, 0x8486e72e, 0x6b448c10, 0x80733713, 0x6fb15c2d, + 0xb9148648, 0x56d6ed76, 0xbde15675, 0x52233d4b, 0xb0ff2632, + 0x5f3d4d0c, 0xb40af60f, 0x5bc89d31, 0xaac3c6bc, 0x4501ad82, + 0xae361681, 0x41f47dbf, 0xa32866c6, 0x4cea0df8, 0xa7ddb6fb, + 0x481fddc5, 0xd1e70470, 0x3e256f4e, 0xd512d44d, 0x3ad0bf73, + 0xd80ca40a, 0x37cecf34, 0xdcf97437, 0x333b1f09, 0xc2304484, + 0x2df22fba, 0xc6c594b9, 0x2907ff87, 0xcbdbe4fe, 0x24198fc0, + 0xcf2e34c3, 0x20ec5ffd, 0xf6498598, 0x198beea6, 0xf2bc55a5, + 0x1d7e3e9b, 0xffa225e2, 0x10604edc, 0xfb57f5df, 0x14959ee1, + 0xe59ec56c, 0x0a5cae52, 0xe16b1551, 0x0ea97e6f, 0xec756516, + 0x03b70e28, 0xe880b52b, 0x0742de15, 0xe6050901, 0x09c7623f, + 0xe2f0d93c, 0x0d32b202, 0xefeea97b, 0x002cc245, 0xeb1b7946, + 0x04d91278, 0xf5d249f5, 0x1a1022cb, 0xf12799c8, 0x1ee5f2f6, + 0xfc39e98f, 0x13fb82b1, 0xf8cc39b2, 0x170e528c, 0xc1ab88e9, + 0x2e69e3d7, 0xc55e58d4, 0x2a9c33ea, 0xc8402893, 0x278243ad, + 0xccb5f8ae, 0x23779390, 0xd27cc81d, 0x3dbea323, 0xd6891820, + 0x394b731e, 0xdb976867, 0x34550359, 0xdf62b85a, 0x30a0d364, + 0xa9580ad1, 0x469a61ef, 0xadaddaec, 0x426fb1d2, 0xa0b3aaab, + 0x4f71c195, 0xa4467a96, 0x4b8411a8, 0xba8f4a25, 0x554d211b, + 0xbe7a9a18, 0x51b8f126, 0xb364ea5f, 0x5ca68161, 0xb7913a62, + 0x5853515c, 0x8ef68b39, 0x6134e007, 0x8a035b04, 0x65c1303a, + 0x871d2b43, 0x68df407d, 0x83e8fb7e, 0x6c2a9040, 0x9d21cbcd, + 0x72e3a0f3, 0x99d41bf0, 0x761670ce, 0x94ca6bb7, 0x7b080089, + 0x903fbb8a, 0x7ffdd0b4, 0x78bf0ea1, 0x977d659f, 0x7c4ade9c, + 0x9388b5a2, 0x7154aedb, 0x9e96c5e5, 0x75a17ee6, 0x9a6315d8, + 0x6b684e55, 0x84aa256b, 0x6f9d9e68, 0x805ff556, 0x6283ee2f, + 0x8d418511, 0x66763e12, 0x89b4552c, 0x5f118f49, 0xb0d3e477, + 0x5be45f74, 0xb426344a, 0x56fa2f33, 0xb938440d, 0x520fff0e, + 0xbdcd9430, 0x4cc6cfbd, 0xa304a483, 0x48331f80, 0xa7f174be, + 0x452d6fc7, 0xaaef04f9, 0x41d8bffa, 0xae1ad4c4, 0x37e20d71, + 0xd820664f, 0x3317dd4c, 0xdcd5b672, 0x3e09ad0b, 0xd1cbc635, + 0x3afc7d36, 0xd53e1608, 0x24354d85, 0xcbf726bb, 0x20c09db8, + 0xcf02f686, 0x2ddeedff, 0xc21c86c1, 0x292b3dc2, 0xc6e956fc, + 0x104c8c99, 0xff8ee7a7, 0x14b95ca4, 0xfb7b379a, 0x19a72ce3, + 0xf66547dd, 0x1d52fcde, 0xf29097e0, 0x039bcc6d, 0xec59a753, + 0x076e1c50, 0xe8ac776e, 0x0a706c17, 0xe5b20729, 0x0e85bc2a, + 0xe147d714}, + {0x00000000, 0x177b1443, 0x2ef62886, 0x398d3cc5, 0x5dec510c, + 0x4a97454f, 0x731a798a, 0x64616dc9, 0xbbd8a218, 0xaca3b65b, + 0x952e8a9e, 0x82559edd, 0xe634f314, 0xf14fe757, 0xc8c2db92, + 0xdfb9cfd1, 0xacc04271, 0xbbbb5632, 0x82366af7, 0x954d7eb4, + 0xf12c137d, 0xe657073e, 0xdfda3bfb, 0xc8a12fb8, 0x1718e069, + 0x0063f42a, 0x39eec8ef, 0x2e95dcac, 0x4af4b165, 0x5d8fa526, + 0x640299e3, 0x73798da0, 0x82f182a3, 0x958a96e0, 0xac07aa25, + 0xbb7cbe66, 0xdf1dd3af, 0xc866c7ec, 0xf1ebfb29, 0xe690ef6a, + 0x392920bb, 0x2e5234f8, 0x17df083d, 0x00a41c7e, 0x64c571b7, + 0x73be65f4, 0x4a335931, 0x5d484d72, 0x2e31c0d2, 0x394ad491, + 0x00c7e854, 0x17bcfc17, 0x73dd91de, 0x64a6859d, 0x5d2bb958, + 0x4a50ad1b, 0x95e962ca, 0x82927689, 0xbb1f4a4c, 0xac645e0f, + 0xc80533c6, 0xdf7e2785, 0xe6f31b40, 0xf1880f03, 0xde920307, + 0xc9e91744, 0xf0642b81, 0xe71f3fc2, 0x837e520b, 0x94054648, + 0xad887a8d, 0xbaf36ece, 0x654aa11f, 0x7231b55c, 0x4bbc8999, + 0x5cc79dda, 0x38a6f013, 0x2fdde450, 0x1650d895, 0x012bccd6, + 0x72524176, 0x65295535, 0x5ca469f0, 0x4bdf7db3, 0x2fbe107a, + 0x38c50439, 0x014838fc, 0x16332cbf, 0xc98ae36e, 0xdef1f72d, + 0xe77ccbe8, 0xf007dfab, 0x9466b262, 0x831da621, 0xba909ae4, + 0xadeb8ea7, 0x5c6381a4, 0x4b1895e7, 0x7295a922, 0x65eebd61, + 0x018fd0a8, 0x16f4c4eb, 0x2f79f82e, 0x3802ec6d, 0xe7bb23bc, + 0xf0c037ff, 0xc94d0b3a, 0xde361f79, 0xba5772b0, 0xad2c66f3, + 0x94a15a36, 0x83da4e75, 0xf0a3c3d5, 0xe7d8d796, 0xde55eb53, + 0xc92eff10, 0xad4f92d9, 0xba34869a, 0x83b9ba5f, 0x94c2ae1c, + 0x4b7b61cd, 0x5c00758e, 0x658d494b, 0x72f65d08, 0x169730c1, + 0x01ec2482, 0x38611847, 0x2f1a0c04, 0x6655004f, 0x712e140c, + 0x48a328c9, 0x5fd83c8a, 0x3bb95143, 0x2cc24500, 0x154f79c5, + 0x02346d86, 0xdd8da257, 0xcaf6b614, 0xf37b8ad1, 0xe4009e92, + 0x8061f35b, 0x971ae718, 0xae97dbdd, 0xb9eccf9e, 0xca95423e, + 0xddee567d, 0xe4636ab8, 0xf3187efb, 0x97791332, 0x80020771, + 0xb98f3bb4, 0xaef42ff7, 0x714de026, 0x6636f465, 0x5fbbc8a0, + 0x48c0dce3, 0x2ca1b12a, 0x3bdaa569, 0x025799ac, 0x152c8def, + 0xe4a482ec, 0xf3df96af, 0xca52aa6a, 0xdd29be29, 0xb948d3e0, + 0xae33c7a3, 0x97befb66, 0x80c5ef25, 0x5f7c20f4, 0x480734b7, + 0x718a0872, 0x66f11c31, 0x029071f8, 0x15eb65bb, 0x2c66597e, + 0x3b1d4d3d, 0x4864c09d, 0x5f1fd4de, 0x6692e81b, 0x71e9fc58, + 0x15889191, 0x02f385d2, 0x3b7eb917, 0x2c05ad54, 0xf3bc6285, + 0xe4c776c6, 0xdd4a4a03, 0xca315e40, 0xae503389, 0xb92b27ca, + 0x80a61b0f, 0x97dd0f4c, 0xb8c70348, 0xafbc170b, 0x96312bce, + 0x814a3f8d, 0xe52b5244, 0xf2504607, 0xcbdd7ac2, 0xdca66e81, + 0x031fa150, 0x1464b513, 0x2de989d6, 0x3a929d95, 0x5ef3f05c, + 0x4988e41f, 0x7005d8da, 0x677ecc99, 0x14074139, 0x037c557a, + 0x3af169bf, 0x2d8a7dfc, 0x49eb1035, 0x5e900476, 0x671d38b3, + 0x70662cf0, 0xafdfe321, 0xb8a4f762, 0x8129cba7, 0x9652dfe4, + 0xf233b22d, 0xe548a66e, 0xdcc59aab, 0xcbbe8ee8, 0x3a3681eb, + 0x2d4d95a8, 0x14c0a96d, 0x03bbbd2e, 0x67dad0e7, 0x70a1c4a4, + 0x492cf861, 0x5e57ec22, 0x81ee23f3, 0x969537b0, 0xaf180b75, + 0xb8631f36, 0xdc0272ff, 0xcb7966bc, 0xf2f45a79, 0xe58f4e3a, + 0x96f6c39a, 0x818dd7d9, 0xb800eb1c, 0xaf7bff5f, 0xcb1a9296, + 0xdc6186d5, 0xe5ecba10, 0xf297ae53, 0x2d2e6182, 0x3a5575c1, + 0x03d84904, 0x14a35d47, 0x70c2308e, 0x67b924cd, 0x5e341808, + 0x494f0c4b}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0x43147b17, 0x8628f62e, 0xc53c8d39, 0x0c51ec5d, + 0x4f45974a, 0x8a791a73, 0xc96d6164, 0x18a2d8bb, 0x5bb6a3ac, + 0x9e8a2e95, 0xdd9e5582, 0x14f334e6, 0x57e74ff1, 0x92dbc2c8, + 0xd1cfb9df, 0x7142c0ac, 0x3256bbbb, 0xf76a3682, 0xb47e4d95, + 0x7d132cf1, 0x3e0757e6, 0xfb3bdadf, 0xb82fa1c8, 0x69e01817, + 0x2af46300, 0xefc8ee39, 0xacdc952e, 0x65b1f44a, 0x26a58f5d, + 0xe3990264, 0xa08d7973, 0xa382f182, 0xe0968a95, 0x25aa07ac, + 0x66be7cbb, 0xafd31ddf, 0xecc766c8, 0x29fbebf1, 0x6aef90e6, + 0xbb202939, 0xf834522e, 0x3d08df17, 0x7e1ca400, 0xb771c564, + 0xf465be73, 0x3159334a, 0x724d485d, 0xd2c0312e, 0x91d44a39, + 0x54e8c700, 0x17fcbc17, 0xde91dd73, 0x9d85a664, 0x58b92b5d, + 0x1bad504a, 0xca62e995, 0x89769282, 0x4c4a1fbb, 0x0f5e64ac, + 0xc63305c8, 0x85277edf, 0x401bf3e6, 0x030f88f1, 0x070392de, + 0x4417e9c9, 0x812b64f0, 0xc23f1fe7, 0x0b527e83, 0x48460594, + 0x8d7a88ad, 0xce6ef3ba, 0x1fa14a65, 0x5cb53172, 0x9989bc4b, + 0xda9dc75c, 0x13f0a638, 0x50e4dd2f, 0x95d85016, 0xd6cc2b01, + 0x76415272, 0x35552965, 0xf069a45c, 0xb37ddf4b, 0x7a10be2f, + 0x3904c538, 0xfc384801, 0xbf2c3316, 0x6ee38ac9, 0x2df7f1de, + 0xe8cb7ce7, 0xabdf07f0, 0x62b26694, 0x21a61d83, 0xe49a90ba, + 0xa78eebad, 0xa481635c, 0xe795184b, 0x22a99572, 0x61bdee65, + 0xa8d08f01, 0xebc4f416, 0x2ef8792f, 0x6dec0238, 0xbc23bbe7, + 0xff37c0f0, 0x3a0b4dc9, 0x791f36de, 0xb07257ba, 0xf3662cad, + 0x365aa194, 0x754eda83, 0xd5c3a3f0, 0x96d7d8e7, 0x53eb55de, + 0x10ff2ec9, 0xd9924fad, 0x9a8634ba, 0x5fbab983, 0x1caec294, + 0xcd617b4b, 0x8e75005c, 0x4b498d65, 0x085df672, 0xc1309716, + 0x8224ec01, 0x47186138, 0x040c1a2f, 0x4f005566, 0x0c142e71, + 0xc928a348, 0x8a3cd85f, 0x4351b93b, 0x0045c22c, 0xc5794f15, + 0x866d3402, 0x57a28ddd, 0x14b6f6ca, 0xd18a7bf3, 0x929e00e4, + 0x5bf36180, 0x18e71a97, 0xdddb97ae, 0x9ecfecb9, 0x3e4295ca, + 0x7d56eedd, 0xb86a63e4, 0xfb7e18f3, 0x32137997, 0x71070280, + 0xb43b8fb9, 0xf72ff4ae, 0x26e04d71, 0x65f43666, 0xa0c8bb5f, + 0xe3dcc048, 0x2ab1a12c, 0x69a5da3b, 0xac995702, 0xef8d2c15, + 0xec82a4e4, 0xaf96dff3, 0x6aaa52ca, 0x29be29dd, 0xe0d348b9, + 0xa3c733ae, 0x66fbbe97, 0x25efc580, 0xf4207c5f, 0xb7340748, + 0x72088a71, 0x311cf166, 0xf8719002, 0xbb65eb15, 0x7e59662c, + 0x3d4d1d3b, 0x9dc06448, 0xded41f5f, 0x1be89266, 0x58fce971, + 0x91918815, 0xd285f302, 0x17b97e3b, 0x54ad052c, 0x8562bcf3, + 0xc676c7e4, 0x034a4add, 0x405e31ca, 0x893350ae, 0xca272bb9, + 0x0f1ba680, 0x4c0fdd97, 0x4803c7b8, 0x0b17bcaf, 0xce2b3196, + 0x8d3f4a81, 0x44522be5, 0x074650f2, 0xc27addcb, 0x816ea6dc, + 0x50a11f03, 0x13b56414, 0xd689e92d, 0x959d923a, 0x5cf0f35e, + 0x1fe48849, 0xdad80570, 0x99cc7e67, 0x39410714, 0x7a557c03, + 0xbf69f13a, 0xfc7d8a2d, 0x3510eb49, 0x7604905e, 0xb3381d67, + 0xf02c6670, 0x21e3dfaf, 0x62f7a4b8, 0xa7cb2981, 0xe4df5296, + 0x2db233f2, 0x6ea648e5, 0xab9ac5dc, 0xe88ebecb, 0xeb81363a, + 0xa8954d2d, 0x6da9c014, 0x2ebdbb03, 0xe7d0da67, 0xa4c4a170, + 0x61f82c49, 0x22ec575e, 0xf323ee81, 0xb0379596, 0x750b18af, + 0x361f63b8, 0xff7202dc, 0xbc6679cb, 0x795af4f2, 0x3a4e8fe5, + 0x9ac3f696, 0xd9d78d81, 0x1ceb00b8, 0x5fff7baf, 0x96921acb, + 0xd58661dc, 0x10baece5, 0x53ae97f2, 0x82612e2d, 0xc175553a, + 0x0449d803, 0x475da314, 0x8e30c270, 0xcd24b967, 0x0818345e, + 0x4b0c4f49}, + {0x00000000, 0x3e6bc2ef, 0x3dd0f504, 0x03bb37eb, 0x7aa0eb09, + 0x44cb29e6, 0x47701e0d, 0x791bdce2, 0xf440d713, 0xca2b15fc, + 0xc9902217, 0xf7fbe0f8, 0x8ee03c1a, 0xb08bfef5, 0xb330c91e, + 0x8d5b0bf1, 0xe881ae27, 0xd6ea6cc8, 0xd5515b23, 0xeb3a99cc, + 0x9221452e, 0xac4a87c1, 0xaff1b02a, 0x919a72c5, 0x1cc17934, + 0x22aabbdb, 0x21118c30, 0x1f7a4edf, 0x6661923d, 0x580a50d2, + 0x5bb16739, 0x65daa5d6, 0xd0035d4f, 0xee689fa0, 0xedd3a84b, + 0xd3b86aa4, 0xaaa3b646, 0x94c874a9, 0x97734342, 0xa91881ad, + 0x24438a5c, 0x1a2848b3, 0x19937f58, 0x27f8bdb7, 0x5ee36155, + 0x6088a3ba, 0x63339451, 0x5d5856be, 0x3882f368, 0x06e93187, + 0x0552066c, 0x3b39c483, 0x42221861, 0x7c49da8e, 0x7ff2ed65, + 0x41992f8a, 0xccc2247b, 0xf2a9e694, 0xf112d17f, 0xcf791390, + 0xb662cf72, 0x88090d9d, 0x8bb23a76, 0xb5d9f899, 0xa007ba9e, + 0x9e6c7871, 0x9dd74f9a, 0xa3bc8d75, 0xdaa75197, 0xe4cc9378, + 0xe777a493, 0xd91c667c, 0x54476d8d, 0x6a2caf62, 0x69979889, + 0x57fc5a66, 0x2ee78684, 0x108c446b, 0x13377380, 0x2d5cb16f, + 0x488614b9, 0x76edd656, 0x7556e1bd, 0x4b3d2352, 0x3226ffb0, + 0x0c4d3d5f, 0x0ff60ab4, 0x319dc85b, 0xbcc6c3aa, 0x82ad0145, + 0x811636ae, 0xbf7df441, 0xc66628a3, 0xf80dea4c, 0xfbb6dda7, + 0xc5dd1f48, 0x7004e7d1, 0x4e6f253e, 0x4dd412d5, 0x73bfd03a, + 0x0aa40cd8, 0x34cfce37, 0x3774f9dc, 0x091f3b33, 0x844430c2, + 0xba2ff22d, 0xb994c5c6, 0x87ff0729, 0xfee4dbcb, 0xc08f1924, + 0xc3342ecf, 0xfd5fec20, 0x988549f6, 0xa6ee8b19, 0xa555bcf2, + 0x9b3e7e1d, 0xe225a2ff, 0xdc4e6010, 0xdff557fb, 0xe19e9514, + 0x6cc59ee5, 0x52ae5c0a, 0x51156be1, 0x6f7ea90e, 0x166575ec, + 0x280eb703, 0x2bb580e8, 0x15de4207, 0x010905e6, 0x3f62c709, + 0x3cd9f0e2, 0x02b2320d, 0x7ba9eeef, 0x45c22c00, 0x46791beb, + 0x7812d904, 0xf549d2f5, 0xcb22101a, 0xc89927f1, 0xf6f2e51e, + 0x8fe939fc, 0xb182fb13, 0xb239ccf8, 0x8c520e17, 0xe988abc1, + 0xd7e3692e, 0xd4585ec5, 0xea339c2a, 0x932840c8, 0xad438227, + 0xaef8b5cc, 0x90937723, 0x1dc87cd2, 0x23a3be3d, 0x201889d6, + 0x1e734b39, 0x676897db, 0x59035534, 0x5ab862df, 0x64d3a030, + 0xd10a58a9, 0xef619a46, 0xecdaadad, 0xd2b16f42, 0xabaab3a0, + 0x95c1714f, 0x967a46a4, 0xa811844b, 0x254a8fba, 0x1b214d55, + 0x189a7abe, 0x26f1b851, 0x5fea64b3, 0x6181a65c, 0x623a91b7, + 0x5c515358, 0x398bf68e, 0x07e03461, 0x045b038a, 0x3a30c165, + 0x432b1d87, 0x7d40df68, 0x7efbe883, 0x40902a6c, 0xcdcb219d, + 0xf3a0e372, 0xf01bd499, 0xce701676, 0xb76bca94, 0x8900087b, + 0x8abb3f90, 0xb4d0fd7f, 0xa10ebf78, 0x9f657d97, 0x9cde4a7c, + 0xa2b58893, 0xdbae5471, 0xe5c5969e, 0xe67ea175, 0xd815639a, + 0x554e686b, 0x6b25aa84, 0x689e9d6f, 0x56f55f80, 0x2fee8362, + 0x1185418d, 0x123e7666, 0x2c55b489, 0x498f115f, 0x77e4d3b0, + 0x745fe45b, 0x4a3426b4, 0x332ffa56, 0x0d4438b9, 0x0eff0f52, + 0x3094cdbd, 0xbdcfc64c, 0x83a404a3, 0x801f3348, 0xbe74f1a7, + 0xc76f2d45, 0xf904efaa, 0xfabfd841, 0xc4d41aae, 0x710de237, + 0x4f6620d8, 0x4cdd1733, 0x72b6d5dc, 0x0bad093e, 0x35c6cbd1, + 0x367dfc3a, 0x08163ed5, 0x854d3524, 0xbb26f7cb, 0xb89dc020, + 0x86f602cf, 0xffedde2d, 0xc1861cc2, 0xc23d2b29, 0xfc56e9c6, + 0x998c4c10, 0xa7e78eff, 0xa45cb914, 0x9a377bfb, 0xe32ca719, + 0xdd4765f6, 0xdefc521d, 0xe09790f2, 0x6dcc9b03, 0x53a759ec, + 0x501c6e07, 0x6e77ace8, 0x176c700a, 0x2907b2e5, 0x2abc850e, + 0x14d747e1}, + {0x00000000, 0xc0df8ec1, 0xc1b96c58, 0x0166e299, 0x8273d9b0, + 0x42ac5771, 0x43cab5e8, 0x83153b29, 0x45e1c3ba, 0x853e4d7b, + 0x8458afe2, 0x44872123, 0xc7921a0a, 0x074d94cb, 0x062b7652, + 0xc6f4f893, 0xcbc4f6ae, 0x0b1b786f, 0x0a7d9af6, 0xcaa21437, + 0x49b72f1e, 0x8968a1df, 0x880e4346, 0x48d1cd87, 0x8e253514, + 0x4efabbd5, 0x4f9c594c, 0x8f43d78d, 0x0c56eca4, 0xcc896265, + 0xcdef80fc, 0x0d300e3d, 0xd78f9c86, 0x17501247, 0x1636f0de, + 0xd6e97e1f, 0x55fc4536, 0x9523cbf7, 0x9445296e, 0x549aa7af, + 0x926e5f3c, 0x52b1d1fd, 0x53d73364, 0x9308bda5, 0x101d868c, + 0xd0c2084d, 0xd1a4ead4, 0x117b6415, 0x1c4b6a28, 0xdc94e4e9, + 0xddf20670, 0x1d2d88b1, 0x9e38b398, 0x5ee73d59, 0x5f81dfc0, + 0x9f5e5101, 0x59aaa992, 0x99752753, 0x9813c5ca, 0x58cc4b0b, + 0xdbd97022, 0x1b06fee3, 0x1a601c7a, 0xdabf92bb, 0xef1948d6, + 0x2fc6c617, 0x2ea0248e, 0xee7faa4f, 0x6d6a9166, 0xadb51fa7, + 0xacd3fd3e, 0x6c0c73ff, 0xaaf88b6c, 0x6a2705ad, 0x6b41e734, + 0xab9e69f5, 0x288b52dc, 0xe854dc1d, 0xe9323e84, 0x29edb045, + 0x24ddbe78, 0xe40230b9, 0xe564d220, 0x25bb5ce1, 0xa6ae67c8, + 0x6671e909, 0x67170b90, 0xa7c88551, 0x613c7dc2, 0xa1e3f303, + 0xa085119a, 0x605a9f5b, 0xe34fa472, 0x23902ab3, 0x22f6c82a, + 0xe22946eb, 0x3896d450, 0xf8495a91, 0xf92fb808, 0x39f036c9, + 0xbae50de0, 0x7a3a8321, 0x7b5c61b8, 0xbb83ef79, 0x7d7717ea, + 0xbda8992b, 0xbcce7bb2, 0x7c11f573, 0xff04ce5a, 0x3fdb409b, + 0x3ebda202, 0xfe622cc3, 0xf35222fe, 0x338dac3f, 0x32eb4ea6, + 0xf234c067, 0x7121fb4e, 0xb1fe758f, 0xb0989716, 0x704719d7, + 0xb6b3e144, 0x766c6f85, 0x770a8d1c, 0xb7d503dd, 0x34c038f4, + 0xf41fb635, 0xf57954ac, 0x35a6da6d, 0x9f35e177, 0x5fea6fb6, + 0x5e8c8d2f, 0x9e5303ee, 0x1d4638c7, 0xdd99b606, 0xdcff549f, + 0x1c20da5e, 0xdad422cd, 0x1a0bac0c, 0x1b6d4e95, 0xdbb2c054, + 0x58a7fb7d, 0x987875bc, 0x991e9725, 0x59c119e4, 0x54f117d9, + 0x942e9918, 0x95487b81, 0x5597f540, 0xd682ce69, 0x165d40a8, + 0x173ba231, 0xd7e42cf0, 0x1110d463, 0xd1cf5aa2, 0xd0a9b83b, + 0x107636fa, 0x93630dd3, 0x53bc8312, 0x52da618b, 0x9205ef4a, + 0x48ba7df1, 0x8865f330, 0x890311a9, 0x49dc9f68, 0xcac9a441, + 0x0a162a80, 0x0b70c819, 0xcbaf46d8, 0x0d5bbe4b, 0xcd84308a, + 0xcce2d213, 0x0c3d5cd2, 0x8f2867fb, 0x4ff7e93a, 0x4e910ba3, + 0x8e4e8562, 0x837e8b5f, 0x43a1059e, 0x42c7e707, 0x821869c6, + 0x010d52ef, 0xc1d2dc2e, 0xc0b43eb7, 0x006bb076, 0xc69f48e5, + 0x0640c624, 0x072624bd, 0xc7f9aa7c, 0x44ec9155, 0x84331f94, + 0x8555fd0d, 0x458a73cc, 0x702ca9a1, 0xb0f32760, 0xb195c5f9, + 0x714a4b38, 0xf25f7011, 0x3280fed0, 0x33e61c49, 0xf3399288, + 0x35cd6a1b, 0xf512e4da, 0xf4740643, 0x34ab8882, 0xb7beb3ab, + 0x77613d6a, 0x7607dff3, 0xb6d85132, 0xbbe85f0f, 0x7b37d1ce, + 0x7a513357, 0xba8ebd96, 0x399b86bf, 0xf944087e, 0xf822eae7, + 0x38fd6426, 0xfe099cb5, 0x3ed61274, 0x3fb0f0ed, 0xff6f7e2c, + 0x7c7a4505, 0xbca5cbc4, 0xbdc3295d, 0x7d1ca79c, 0xa7a33527, + 0x677cbbe6, 0x661a597f, 0xa6c5d7be, 0x25d0ec97, 0xe50f6256, + 0xe46980cf, 0x24b60e0e, 0xe242f69d, 0x229d785c, 0x23fb9ac5, + 0xe3241404, 0x60312f2d, 0xa0eea1ec, 0xa1884375, 0x6157cdb4, + 0x6c67c389, 0xacb84d48, 0xaddeafd1, 0x6d012110, 0xee141a39, + 0x2ecb94f8, 0x2fad7661, 0xef72f8a0, 0x29860033, 0xe9598ef2, + 0xe83f6c6b, 0x28e0e2aa, 0xabf5d983, 0x6b2a5742, 0x6a4cb5db, + 0xaa933b1a}, + {0x00000000, 0x6f4ca59b, 0x9f9e3bec, 0xf0d29e77, 0x7f3b0603, + 0x1077a398, 0xe0a53def, 0x8fe99874, 0xfe760c06, 0x913aa99d, + 0x61e837ea, 0x0ea49271, 0x814d0a05, 0xee01af9e, 0x1ed331e9, + 0x719f9472, 0xfced180c, 0x93a1bd97, 0x637323e0, 0x0c3f867b, + 0x83d61e0f, 0xec9abb94, 0x1c4825e3, 0x73048078, 0x029b140a, + 0x6dd7b191, 0x9d052fe6, 0xf2498a7d, 0x7da01209, 0x12ecb792, + 0xe23e29e5, 0x8d728c7e, 0xf8db3118, 0x97979483, 0x67450af4, + 0x0809af6f, 0x87e0371b, 0xe8ac9280, 0x187e0cf7, 0x7732a96c, + 0x06ad3d1e, 0x69e19885, 0x993306f2, 0xf67fa369, 0x79963b1d, + 0x16da9e86, 0xe60800f1, 0x8944a56a, 0x04362914, 0x6b7a8c8f, + 0x9ba812f8, 0xf4e4b763, 0x7b0d2f17, 0x14418a8c, 0xe49314fb, + 0x8bdfb160, 0xfa402512, 0x950c8089, 0x65de1efe, 0x0a92bb65, + 0x857b2311, 0xea37868a, 0x1ae518fd, 0x75a9bd66, 0xf0b76330, + 0x9ffbc6ab, 0x6f2958dc, 0x0065fd47, 0x8f8c6533, 0xe0c0c0a8, + 0x10125edf, 0x7f5efb44, 0x0ec16f36, 0x618dcaad, 0x915f54da, + 0xfe13f141, 0x71fa6935, 0x1eb6ccae, 0xee6452d9, 0x8128f742, + 0x0c5a7b3c, 0x6316dea7, 0x93c440d0, 0xfc88e54b, 0x73617d3f, + 0x1c2dd8a4, 0xecff46d3, 0x83b3e348, 0xf22c773a, 0x9d60d2a1, + 0x6db24cd6, 0x02fee94d, 0x8d177139, 0xe25bd4a2, 0x12894ad5, + 0x7dc5ef4e, 0x086c5228, 0x6720f7b3, 0x97f269c4, 0xf8becc5f, + 0x7757542b, 0x181bf1b0, 0xe8c96fc7, 0x8785ca5c, 0xf61a5e2e, + 0x9956fbb5, 0x698465c2, 0x06c8c059, 0x8921582d, 0xe66dfdb6, + 0x16bf63c1, 0x79f3c65a, 0xf4814a24, 0x9bcdefbf, 0x6b1f71c8, + 0x0453d453, 0x8bba4c27, 0xe4f6e9bc, 0x142477cb, 0x7b68d250, + 0x0af74622, 0x65bbe3b9, 0x95697dce, 0xfa25d855, 0x75cc4021, + 0x1a80e5ba, 0xea527bcd, 0x851ede56, 0xe06fc760, 0x8f2362fb, + 0x7ff1fc8c, 0x10bd5917, 0x9f54c163, 0xf01864f8, 0x00cafa8f, + 0x6f865f14, 0x1e19cb66, 0x71556efd, 0x8187f08a, 0xeecb5511, + 0x6122cd65, 0x0e6e68fe, 0xfebcf689, 0x91f05312, 0x1c82df6c, + 0x73ce7af7, 0x831ce480, 0xec50411b, 0x63b9d96f, 0x0cf57cf4, + 0xfc27e283, 0x936b4718, 0xe2f4d36a, 0x8db876f1, 0x7d6ae886, + 0x12264d1d, 0x9dcfd569, 0xf28370f2, 0x0251ee85, 0x6d1d4b1e, + 0x18b4f678, 0x77f853e3, 0x872acd94, 0xe866680f, 0x678ff07b, + 0x08c355e0, 0xf811cb97, 0x975d6e0c, 0xe6c2fa7e, 0x898e5fe5, + 0x795cc192, 0x16106409, 0x99f9fc7d, 0xf6b559e6, 0x0667c791, + 0x692b620a, 0xe459ee74, 0x8b154bef, 0x7bc7d598, 0x148b7003, + 0x9b62e877, 0xf42e4dec, 0x04fcd39b, 0x6bb07600, 0x1a2fe272, + 0x756347e9, 0x85b1d99e, 0xeafd7c05, 0x6514e471, 0x0a5841ea, + 0xfa8adf9d, 0x95c67a06, 0x10d8a450, 0x7f9401cb, 0x8f469fbc, + 0xe00a3a27, 0x6fe3a253, 0x00af07c8, 0xf07d99bf, 0x9f313c24, + 0xeeaea856, 0x81e20dcd, 0x713093ba, 0x1e7c3621, 0x9195ae55, + 0xfed90bce, 0x0e0b95b9, 0x61473022, 0xec35bc5c, 0x837919c7, + 0x73ab87b0, 0x1ce7222b, 0x930eba5f, 0xfc421fc4, 0x0c9081b3, + 0x63dc2428, 0x1243b05a, 0x7d0f15c1, 0x8ddd8bb6, 0xe2912e2d, + 0x6d78b659, 0x023413c2, 0xf2e68db5, 0x9daa282e, 0xe8039548, + 0x874f30d3, 0x779daea4, 0x18d10b3f, 0x9738934b, 0xf87436d0, + 0x08a6a8a7, 0x67ea0d3c, 0x1675994e, 0x79393cd5, 0x89eba2a2, + 0xe6a70739, 0x694e9f4d, 0x06023ad6, 0xf6d0a4a1, 0x999c013a, + 0x14ee8d44, 0x7ba228df, 0x8b70b6a8, 0xe43c1333, 0x6bd58b47, + 0x04992edc, 0xf44bb0ab, 0x9b071530, 0xea988142, 0x85d424d9, + 0x7506baae, 0x1a4a1f35, 0x95a38741, 0xfaef22da, 0x0a3dbcad, + 0x65711936}}; + +#endif + +#endif + +#if N == 4 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xf1da05aa, 0x38c50d15, 0xc91f08bf, 0x718a1a2a, + 0x80501f80, 0x494f173f, 0xb8951295, 0xe3143454, 0x12ce31fe, + 0xdbd13941, 0x2a0b3ceb, 0x929e2e7e, 0x63442bd4, 0xaa5b236b, + 0x5b8126c1, 0x1d596ee9, 0xec836b43, 0x259c63fc, 0xd4466656, + 0x6cd374c3, 0x9d097169, 0x541679d6, 0xa5cc7c7c, 0xfe4d5abd, + 0x0f975f17, 0xc68857a8, 0x37525202, 0x8fc74097, 0x7e1d453d, + 0xb7024d82, 0x46d84828, 0x3ab2ddd2, 0xcb68d878, 0x0277d0c7, + 0xf3add56d, 0x4b38c7f8, 0xbae2c252, 0x73fdcaed, 0x8227cf47, + 0xd9a6e986, 0x287cec2c, 0xe163e493, 0x10b9e139, 0xa82cf3ac, + 0x59f6f606, 0x90e9feb9, 0x6133fb13, 0x27ebb33b, 0xd631b691, + 0x1f2ebe2e, 0xeef4bb84, 0x5661a911, 0xa7bbacbb, 0x6ea4a404, + 0x9f7ea1ae, 0xc4ff876f, 0x352582c5, 0xfc3a8a7a, 0x0de08fd0, + 0xb5759d45, 0x44af98ef, 0x8db09050, 0x7c6a95fa, 0x7565bba4, + 0x84bfbe0e, 0x4da0b6b1, 0xbc7ab31b, 0x04efa18e, 0xf535a424, + 0x3c2aac9b, 0xcdf0a931, 0x96718ff0, 0x67ab8a5a, 0xaeb482e5, + 0x5f6e874f, 0xe7fb95da, 0x16219070, 0xdf3e98cf, 0x2ee49d65, + 0x683cd54d, 0x99e6d0e7, 0x50f9d858, 0xa123ddf2, 0x19b6cf67, + 0xe86ccacd, 0x2173c272, 0xd0a9c7d8, 0x8b28e119, 0x7af2e4b3, + 0xb3edec0c, 0x4237e9a6, 0xfaa2fb33, 0x0b78fe99, 0xc267f626, + 0x33bdf38c, 0x4fd76676, 0xbe0d63dc, 0x77126b63, 0x86c86ec9, + 0x3e5d7c5c, 0xcf8779f6, 0x06987149, 0xf74274e3, 0xacc35222, + 0x5d195788, 0x94065f37, 0x65dc5a9d, 0xdd494808, 0x2c934da2, + 0xe58c451d, 0x145640b7, 0x528e089f, 0xa3540d35, 0x6a4b058a, + 0x9b910020, 0x230412b5, 0xd2de171f, 0x1bc11fa0, 0xea1b1a0a, + 0xb19a3ccb, 0x40403961, 0x895f31de, 0x78853474, 0xc01026e1, + 0x31ca234b, 0xf8d52bf4, 0x090f2e5e, 0xeacb7748, 0x1b1172e2, + 0xd20e7a5d, 0x23d47ff7, 0x9b416d62, 0x6a9b68c8, 0xa3846077, + 0x525e65dd, 0x09df431c, 0xf80546b6, 0x311a4e09, 0xc0c04ba3, + 0x78555936, 0x898f5c9c, 0x40905423, 0xb14a5189, 0xf79219a1, + 0x06481c0b, 0xcf5714b4, 0x3e8d111e, 0x8618038b, 0x77c20621, + 0xbedd0e9e, 0x4f070b34, 0x14862df5, 0xe55c285f, 0x2c4320e0, + 0xdd99254a, 0x650c37df, 0x94d63275, 0x5dc93aca, 0xac133f60, + 0xd079aa9a, 0x21a3af30, 0xe8bca78f, 0x1966a225, 0xa1f3b0b0, + 0x5029b51a, 0x9936bda5, 0x68ecb80f, 0x336d9ece, 0xc2b79b64, + 0x0ba893db, 0xfa729671, 0x42e784e4, 0xb33d814e, 0x7a2289f1, + 0x8bf88c5b, 0xcd20c473, 0x3cfac1d9, 0xf5e5c966, 0x043fcccc, + 0xbcaade59, 0x4d70dbf3, 0x846fd34c, 0x75b5d6e6, 0x2e34f027, + 0xdfeef58d, 0x16f1fd32, 0xe72bf898, 0x5fbeea0d, 0xae64efa7, + 0x677be718, 0x96a1e2b2, 0x9faeccec, 0x6e74c946, 0xa76bc1f9, + 0x56b1c453, 0xee24d6c6, 0x1ffed36c, 0xd6e1dbd3, 0x273bde79, + 0x7cbaf8b8, 0x8d60fd12, 0x447ff5ad, 0xb5a5f007, 0x0d30e292, + 0xfceae738, 0x35f5ef87, 0xc42fea2d, 0x82f7a205, 0x732da7af, + 0xba32af10, 0x4be8aaba, 0xf37db82f, 0x02a7bd85, 0xcbb8b53a, + 0x3a62b090, 0x61e39651, 0x903993fb, 0x59269b44, 0xa8fc9eee, + 0x10698c7b, 0xe1b389d1, 0x28ac816e, 0xd97684c4, 0xa51c113e, + 0x54c61494, 0x9dd91c2b, 0x6c031981, 0xd4960b14, 0x254c0ebe, + 0xec530601, 0x1d8903ab, 0x4608256a, 0xb7d220c0, 0x7ecd287f, + 0x8f172dd5, 0x37823f40, 0xc6583aea, 0x0f473255, 0xfe9d37ff, + 0xb8457fd7, 0x499f7a7d, 0x808072c2, 0x715a7768, 0xc9cf65fd, + 0x38156057, 0xf10a68e8, 0x00d06d42, 0x5b514b83, 0xaa8b4e29, + 0x63944696, 0x924e433c, 0x2adb51a9, 0xdb015403, 0x121e5cbc, + 0xe3c45916}, + {0x00000000, 0x0ee7e8d1, 0x1dcfd1a2, 0x13283973, 0x3b9fa344, + 0x35784b95, 0x265072e6, 0x28b79a37, 0x773f4688, 0x79d8ae59, + 0x6af0972a, 0x64177ffb, 0x4ca0e5cc, 0x42470d1d, 0x516f346e, + 0x5f88dcbf, 0xee7e8d10, 0xe09965c1, 0xf3b15cb2, 0xfd56b463, + 0xd5e12e54, 0xdb06c685, 0xc82efff6, 0xc6c91727, 0x9941cb98, + 0x97a62349, 0x848e1a3a, 0x8a69f2eb, 0xa2de68dc, 0xac39800d, + 0xbf11b97e, 0xb1f651af, 0x078c1c61, 0x096bf4b0, 0x1a43cdc3, + 0x14a42512, 0x3c13bf25, 0x32f457f4, 0x21dc6e87, 0x2f3b8656, + 0x70b35ae9, 0x7e54b238, 0x6d7c8b4b, 0x639b639a, 0x4b2cf9ad, + 0x45cb117c, 0x56e3280f, 0x5804c0de, 0xe9f29171, 0xe71579a0, + 0xf43d40d3, 0xfadaa802, 0xd26d3235, 0xdc8adae4, 0xcfa2e397, + 0xc1450b46, 0x9ecdd7f9, 0x902a3f28, 0x8302065b, 0x8de5ee8a, + 0xa55274bd, 0xabb59c6c, 0xb89da51f, 0xb67a4dce, 0x0f1838c2, + 0x01ffd013, 0x12d7e960, 0x1c3001b1, 0x34879b86, 0x3a607357, + 0x29484a24, 0x27afa2f5, 0x78277e4a, 0x76c0969b, 0x65e8afe8, + 0x6b0f4739, 0x43b8dd0e, 0x4d5f35df, 0x5e770cac, 0x5090e47d, + 0xe166b5d2, 0xef815d03, 0xfca96470, 0xf24e8ca1, 0xdaf91696, + 0xd41efe47, 0xc736c734, 0xc9d12fe5, 0x9659f35a, 0x98be1b8b, + 0x8b9622f8, 0x8571ca29, 0xadc6501e, 0xa321b8cf, 0xb00981bc, + 0xbeee696d, 0x089424a3, 0x0673cc72, 0x155bf501, 0x1bbc1dd0, + 0x330b87e7, 0x3dec6f36, 0x2ec45645, 0x2023be94, 0x7fab622b, + 0x714c8afa, 0x6264b389, 0x6c835b58, 0x4434c16f, 0x4ad329be, + 0x59fb10cd, 0x571cf81c, 0xe6eaa9b3, 0xe80d4162, 0xfb257811, + 0xf5c290c0, 0xdd750af7, 0xd392e226, 0xc0badb55, 0xce5d3384, + 0x91d5ef3b, 0x9f3207ea, 0x8c1a3e99, 0x82fdd648, 0xaa4a4c7f, + 0xa4ada4ae, 0xb7859ddd, 0xb962750c, 0x1e307184, 0x10d79955, + 0x03ffa026, 0x0d1848f7, 0x25afd2c0, 0x2b483a11, 0x38600362, + 0x3687ebb3, 0x690f370c, 0x67e8dfdd, 0x74c0e6ae, 0x7a270e7f, + 0x52909448, 0x5c777c99, 0x4f5f45ea, 0x41b8ad3b, 0xf04efc94, + 0xfea91445, 0xed812d36, 0xe366c5e7, 0xcbd15fd0, 0xc536b701, + 0xd61e8e72, 0xd8f966a3, 0x8771ba1c, 0x899652cd, 0x9abe6bbe, + 0x9459836f, 0xbcee1958, 0xb209f189, 0xa121c8fa, 0xafc6202b, + 0x19bc6de5, 0x175b8534, 0x0473bc47, 0x0a945496, 0x2223cea1, + 0x2cc42670, 0x3fec1f03, 0x310bf7d2, 0x6e832b6d, 0x6064c3bc, + 0x734cfacf, 0x7dab121e, 0x551c8829, 0x5bfb60f8, 0x48d3598b, + 0x4634b15a, 0xf7c2e0f5, 0xf9250824, 0xea0d3157, 0xe4ead986, + 0xcc5d43b1, 0xc2baab60, 0xd1929213, 0xdf757ac2, 0x80fda67d, + 0x8e1a4eac, 0x9d3277df, 0x93d59f0e, 0xbb620539, 0xb585ede8, + 0xa6add49b, 0xa84a3c4a, 0x11284946, 0x1fcfa197, 0x0ce798e4, + 0x02007035, 0x2ab7ea02, 0x245002d3, 0x37783ba0, 0x399fd371, + 0x66170fce, 0x68f0e71f, 0x7bd8de6c, 0x753f36bd, 0x5d88ac8a, + 0x536f445b, 0x40477d28, 0x4ea095f9, 0xff56c456, 0xf1b12c87, + 0xe29915f4, 0xec7efd25, 0xc4c96712, 0xca2e8fc3, 0xd906b6b0, + 0xd7e15e61, 0x886982de, 0x868e6a0f, 0x95a6537c, 0x9b41bbad, + 0xb3f6219a, 0xbd11c94b, 0xae39f038, 0xa0de18e9, 0x16a45527, + 0x1843bdf6, 0x0b6b8485, 0x058c6c54, 0x2d3bf663, 0x23dc1eb2, + 0x30f427c1, 0x3e13cf10, 0x619b13af, 0x6f7cfb7e, 0x7c54c20d, + 0x72b32adc, 0x5a04b0eb, 0x54e3583a, 0x47cb6149, 0x492c8998, + 0xf8dad837, 0xf63d30e6, 0xe5150995, 0xebf2e144, 0xc3457b73, + 0xcda293a2, 0xde8aaad1, 0xd06d4200, 0x8fe59ebf, 0x8102766e, + 0x922a4f1d, 0x9ccda7cc, 0xb47a3dfb, 0xba9dd52a, 0xa9b5ec59, + 0xa7520488}, + {0x00000000, 0x3c60e308, 0x78c1c610, 0x44a12518, 0xf1838c20, + 0xcde36f28, 0x89424a30, 0xb522a938, 0x38761e01, 0x0416fd09, + 0x40b7d811, 0x7cd73b19, 0xc9f59221, 0xf5957129, 0xb1345431, + 0x8d54b739, 0x70ec3c02, 0x4c8cdf0a, 0x082dfa12, 0x344d191a, + 0x816fb022, 0xbd0f532a, 0xf9ae7632, 0xc5ce953a, 0x489a2203, + 0x74fac10b, 0x305be413, 0x0c3b071b, 0xb919ae23, 0x85794d2b, + 0xc1d86833, 0xfdb88b3b, 0xe1d87804, 0xddb89b0c, 0x9919be14, + 0xa5795d1c, 0x105bf424, 0x2c3b172c, 0x689a3234, 0x54fad13c, + 0xd9ae6605, 0xe5ce850d, 0xa16fa015, 0x9d0f431d, 0x282dea25, + 0x144d092d, 0x50ec2c35, 0x6c8ccf3d, 0x91344406, 0xad54a70e, + 0xe9f58216, 0xd595611e, 0x60b7c826, 0x5cd72b2e, 0x18760e36, + 0x2416ed3e, 0xa9425a07, 0x9522b90f, 0xd1839c17, 0xede37f1f, + 0x58c1d627, 0x64a1352f, 0x20001037, 0x1c60f33f, 0x18c1f649, + 0x24a11541, 0x60003059, 0x5c60d351, 0xe9427a69, 0xd5229961, + 0x9183bc79, 0xade35f71, 0x20b7e848, 0x1cd70b40, 0x58762e58, + 0x6416cd50, 0xd1346468, 0xed548760, 0xa9f5a278, 0x95954170, + 0x682dca4b, 0x544d2943, 0x10ec0c5b, 0x2c8cef53, 0x99ae466b, + 0xa5cea563, 0xe16f807b, 0xdd0f6373, 0x505bd44a, 0x6c3b3742, + 0x289a125a, 0x14faf152, 0xa1d8586a, 0x9db8bb62, 0xd9199e7a, + 0xe5797d72, 0xf9198e4d, 0xc5796d45, 0x81d8485d, 0xbdb8ab55, + 0x089a026d, 0x34fae165, 0x705bc47d, 0x4c3b2775, 0xc16f904c, + 0xfd0f7344, 0xb9ae565c, 0x85ceb554, 0x30ec1c6c, 0x0c8cff64, + 0x482dda7c, 0x744d3974, 0x89f5b24f, 0xb5955147, 0xf134745f, + 0xcd549757, 0x78763e6f, 0x4416dd67, 0x00b7f87f, 0x3cd71b77, + 0xb183ac4e, 0x8de34f46, 0xc9426a5e, 0xf5228956, 0x4000206e, + 0x7c60c366, 0x38c1e67e, 0x04a10576, 0x3183ec92, 0x0de30f9a, + 0x49422a82, 0x7522c98a, 0xc00060b2, 0xfc6083ba, 0xb8c1a6a2, + 0x84a145aa, 0x09f5f293, 0x3595119b, 0x71343483, 0x4d54d78b, + 0xf8767eb3, 0xc4169dbb, 0x80b7b8a3, 0xbcd75bab, 0x416fd090, + 0x7d0f3398, 0x39ae1680, 0x05cef588, 0xb0ec5cb0, 0x8c8cbfb8, + 0xc82d9aa0, 0xf44d79a8, 0x7919ce91, 0x45792d99, 0x01d80881, + 0x3db8eb89, 0x889a42b1, 0xb4faa1b9, 0xf05b84a1, 0xcc3b67a9, + 0xd05b9496, 0xec3b779e, 0xa89a5286, 0x94fab18e, 0x21d818b6, + 0x1db8fbbe, 0x5919dea6, 0x65793dae, 0xe82d8a97, 0xd44d699f, + 0x90ec4c87, 0xac8caf8f, 0x19ae06b7, 0x25cee5bf, 0x616fc0a7, + 0x5d0f23af, 0xa0b7a894, 0x9cd74b9c, 0xd8766e84, 0xe4168d8c, + 0x513424b4, 0x6d54c7bc, 0x29f5e2a4, 0x159501ac, 0x98c1b695, + 0xa4a1559d, 0xe0007085, 0xdc60938d, 0x69423ab5, 0x5522d9bd, + 0x1183fca5, 0x2de31fad, 0x29421adb, 0x1522f9d3, 0x5183dccb, + 0x6de33fc3, 0xd8c196fb, 0xe4a175f3, 0xa00050eb, 0x9c60b3e3, + 0x113404da, 0x2d54e7d2, 0x69f5c2ca, 0x559521c2, 0xe0b788fa, + 0xdcd76bf2, 0x98764eea, 0xa416ade2, 0x59ae26d9, 0x65cec5d1, + 0x216fe0c9, 0x1d0f03c1, 0xa82daaf9, 0x944d49f1, 0xd0ec6ce9, + 0xec8c8fe1, 0x61d838d8, 0x5db8dbd0, 0x1919fec8, 0x25791dc0, + 0x905bb4f8, 0xac3b57f0, 0xe89a72e8, 0xd4fa91e0, 0xc89a62df, + 0xf4fa81d7, 0xb05ba4cf, 0x8c3b47c7, 0x3919eeff, 0x05790df7, + 0x41d828ef, 0x7db8cbe7, 0xf0ec7cde, 0xcc8c9fd6, 0x882dbace, + 0xb44d59c6, 0x016ff0fe, 0x3d0f13f6, 0x79ae36ee, 0x45ced5e6, + 0xb8765edd, 0x8416bdd5, 0xc0b798cd, 0xfcd77bc5, 0x49f5d2fd, + 0x759531f5, 0x313414ed, 0x0d54f7e5, 0x800040dc, 0xbc60a3d4, + 0xf8c186cc, 0xc4a165c4, 0x7183ccfc, 0x4de32ff4, 0x09420aec, + 0x3522e9e4}, + {0x00000000, 0x6307d924, 0xc60fb248, 0xa5086b6c, 0x576e62d1, + 0x3469bbf5, 0x9161d099, 0xf26609bd, 0xaedcc5a2, 0xcddb1c86, + 0x68d377ea, 0x0bd4aece, 0xf9b2a773, 0x9ab57e57, 0x3fbd153b, + 0x5cbacc1f, 0x86c88d05, 0xe5cf5421, 0x40c73f4d, 0x23c0e669, + 0xd1a6efd4, 0xb2a136f0, 0x17a95d9c, 0x74ae84b8, 0x281448a7, + 0x4b139183, 0xee1bfaef, 0x8d1c23cb, 0x7f7a2a76, 0x1c7df352, + 0xb975983e, 0xda72411a, 0xd6e01c4b, 0xb5e7c56f, 0x10efae03, + 0x73e87727, 0x818e7e9a, 0xe289a7be, 0x4781ccd2, 0x248615f6, + 0x783cd9e9, 0x1b3b00cd, 0xbe336ba1, 0xdd34b285, 0x2f52bb38, + 0x4c55621c, 0xe95d0970, 0x8a5ad054, 0x5028914e, 0x332f486a, + 0x96272306, 0xf520fa22, 0x0746f39f, 0x64412abb, 0xc14941d7, + 0xa24e98f3, 0xfef454ec, 0x9df38dc8, 0x38fbe6a4, 0x5bfc3f80, + 0xa99a363d, 0xca9def19, 0x6f958475, 0x0c925d51, 0x76b13ed7, + 0x15b6e7f3, 0xb0be8c9f, 0xd3b955bb, 0x21df5c06, 0x42d88522, + 0xe7d0ee4e, 0x84d7376a, 0xd86dfb75, 0xbb6a2251, 0x1e62493d, + 0x7d659019, 0x8f0399a4, 0xec044080, 0x490c2bec, 0x2a0bf2c8, + 0xf079b3d2, 0x937e6af6, 0x3676019a, 0x5571d8be, 0xa717d103, + 0xc4100827, 0x6118634b, 0x021fba6f, 0x5ea57670, 0x3da2af54, + 0x98aac438, 0xfbad1d1c, 0x09cb14a1, 0x6acccd85, 0xcfc4a6e9, + 0xacc37fcd, 0xa051229c, 0xc356fbb8, 0x665e90d4, 0x055949f0, + 0xf73f404d, 0x94389969, 0x3130f205, 0x52372b21, 0x0e8de73e, + 0x6d8a3e1a, 0xc8825576, 0xab858c52, 0x59e385ef, 0x3ae45ccb, + 0x9fec37a7, 0xfcebee83, 0x2699af99, 0x459e76bd, 0xe0961dd1, + 0x8391c4f5, 0x71f7cd48, 0x12f0146c, 0xb7f87f00, 0xd4ffa624, + 0x88456a3b, 0xeb42b31f, 0x4e4ad873, 0x2d4d0157, 0xdf2b08ea, + 0xbc2cd1ce, 0x1924baa2, 0x7a236386, 0xed627dae, 0x8e65a48a, + 0x2b6dcfe6, 0x486a16c2, 0xba0c1f7f, 0xd90bc65b, 0x7c03ad37, + 0x1f047413, 0x43beb80c, 0x20b96128, 0x85b10a44, 0xe6b6d360, + 0x14d0dadd, 0x77d703f9, 0xd2df6895, 0xb1d8b1b1, 0x6baaf0ab, + 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0x4d4ffdef, 0xbf181017, 0x5805b680, + 0x80c6cda6, 0x67db6b31, 0x958c86c9, 0x7291205e, 0xff7b76c4, + 0x1866d053, 0xea313dab, 0x0d2c9b3c, 0xd5efe01a, 0x32f2468d, + 0xc0a5ab75, 0x27b80de2, 0x8fd5b0b1, 0x68c81626, 0x9a9ffbde, + 0x7d825d49, 0xa541266f, 0x425c80f8, 0xb00b6d00, 0x5716cb97, + 0xdafc9d0d, 0x3de13b9a, 0xcfb6d662, 0x28ab70f5, 0xf0680bd3, + 0x1775ad44, 0xe52240bc, 0x023fe62b, 0x2587ebc9, 0xc29a4d5e, + 0x30cda0a6, 0xd7d00631, 0x0f137d17, 0xe80edb80, 0x1a593678, + 0xfd4490ef, 0x70aec675, 0x97b360e2, 0x65e48d1a, 0x82f92b8d, + 0x5a3a50ab, 0xbd27f63c, 0x4f701bc4, 0xa86dbd53, 0xc4da6723, + 0x23c7c1b4, 0xd1902c4c, 0x368d8adb, 0xee4ef1fd, 0x0953576a, + 0xfb04ba92, 0x1c191c05, 0x91f34a9f, 0x76eeec08, 0x84b901f0, + 0x63a4a767, 0xbb67dc41, 0x5c7a7ad6, 0xae2d972e, 0x493031b9, + 0x6e883c5b, 0x89959acc, 0x7bc27734, 0x9cdfd1a3, 0x441caa85, + 0xa3010c12, 0x5156e1ea, 0xb64b477d, 0x3ba111e7, 0xdcbcb770, + 0x2eeb5a88, 0xc9f6fc1f, 0x11358739, 0xf62821ae, 0x047fcc56, + 0xe3626ac1, 0x4b0fd792, 0xac127105, 0x5e459cfd, 0xb9583a6a, + 0x619b414c, 0x8686e7db, 0x74d10a23, 0x93ccacb4, 0x1e26fa2e, + 0xf93b5cb9, 0x0b6cb141, 0xec7117d6, 0x34b26cf0, 0xd3afca67, + 0x21f8279f, 0xc6e58108, 0xe15d8cea, 0x06402a7d, 0xf417c785, + 0x130a6112, 0xcbc91a34, 0x2cd4bca3, 0xde83515b, 0x399ef7cc, + 0xb474a156, 0x536907c1, 0xa13eea39, 0x46234cae, 0x9ee03788, + 0x79fd911f, 0x8baa7ce7, 0x6cb7da70, 0x52c5c807, 0xb5d86e90, + 0x478f8368, 0xa09225ff, 0x78515ed9, 0x9f4cf84e, 0x6d1b15b6, + 0x8a06b321, 0x07ece5bb, 0xe0f1432c, 0x12a6aed4, 0xf5bb0843, + 0x2d787365, 0xca65d5f2, 0x3832380a, 0xdf2f9e9d, 0xf897937f, + 0x1f8a35e8, 0xedddd810, 0x0ac07e87, 0xd20305a1, 0x351ea336, + 0xc7494ece, 0x2054e859, 0xadbebec3, 0x4aa31854, 0xb8f4f5ac, + 0x5fe9533b, 0x872a281d, 0x60378e8a, 0x92606372, 0x757dc5e5, + 0xdd1078b6, 0x3a0dde21, 0xc85a33d9, 0x2f47954e, 0xf784ee68, + 0x109948ff, 0xe2cea507, 0x05d30390, 0x8839550a, 0x6f24f39d, + 0x9d731e65, 0x7a6eb8f2, 0xa2adc3d4, 0x45b06543, 0xb7e788bb, + 0x50fa2e2c, 0x774223ce, 0x905f8559, 0x620868a1, 0x8515ce36, + 0x5dd6b510, 0xbacb1387, 0x489cfe7f, 0xaf8158e8, 0x226b0e72, + 0xc576a8e5, 0x3721451d, 0xd03ce38a, 0x08ff98ac, 0xefe23e3b, + 0x1db5d3c3, 0xfaa87554, 0x961faf24, 0x710209b3, 0x8355e44b, + 0x644842dc, 0xbc8b39fa, 0x5b969f6d, 0xa9c17295, 0x4edcd402, + 0xc3368298, 0x242b240f, 0xd67cc9f7, 0x31616f60, 0xe9a21446, + 0x0ebfb2d1, 0xfce85f29, 0x1bf5f9be, 0x3c4df45c, 0xdb5052cb, + 0x2907bf33, 0xce1a19a4, 0x16d96282, 0xf1c4c415, 0x039329ed, + 0xe48e8f7a, 0x6964d9e0, 0x8e797f77, 0x7c2e928f, 0x9b333418, + 0x43f04f3e, 0xa4ede9a9, 0x56ba0451, 0xb1a7a2c6, 0x19ca1f95, + 0xfed7b902, 0x0c8054fa, 0xeb9df26d, 0x335e894b, 0xd4432fdc, + 0x2614c224, 0xc10964b3, 0x4ce33229, 0xabfe94be, 0x59a97946, + 0xbeb4dfd1, 0x6677a4f7, 0x816a0260, 0x733def98, 0x9420490f, + 0xb39844ed, 0x5485e27a, 0xa6d20f82, 0x41cfa915, 0x990cd233, + 0x7e1174a4, 0x8c46995c, 0x6b5b3fcb, 0xe6b16951, 0x01accfc6, + 0xf3fb223e, 0x14e684a9, 0xcc25ff8f, 0x2b385918, 0xd96fb4e0, + 0x3e721277}, + {0x00000000, 0xa58b900e, 0x9066265d, 0x35edb653, 0xfbbd4afb, + 0x5e36daf5, 0x6bdb6ca6, 0xce50fca8, 0x2c0b93b7, 0x898003b9, + 0xbc6db5ea, 0x19e625e4, 0xd7b6d94c, 0x723d4942, 0x47d0ff11, + 0xe25b6f1f, 0x5817276e, 0xfd9cb760, 0xc8710133, 0x6dfa913d, + 0xa3aa6d95, 0x0621fd9b, 0x33cc4bc8, 0x9647dbc6, 0x741cb4d9, + 0xd19724d7, 0xe47a9284, 0x41f1028a, 0x8fa1fe22, 0x2a2a6e2c, + 0x1fc7d87f, 0xba4c4871, 0xb02e4edc, 0x15a5ded2, 0x20486881, + 0x85c3f88f, 0x4b930427, 0xee189429, 0xdbf5227a, 0x7e7eb274, + 0x9c25dd6b, 0x39ae4d65, 0x0c43fb36, 0xa9c86b38, 0x67989790, + 0xc213079e, 0xf7feb1cd, 0x527521c3, 0xe83969b2, 0x4db2f9bc, + 0x785f4fef, 0xddd4dfe1, 0x13842349, 0xb60fb347, 0x83e20514, + 0x2669951a, 0xc432fa05, 0x61b96a0b, 0x5454dc58, 0xf1df4c56, + 0x3f8fb0fe, 0x9a0420f0, 0xafe996a3, 0x0a6206ad, 0xbb2d9bf9, + 0x1ea60bf7, 0x2b4bbda4, 0x8ec02daa, 0x4090d102, 0xe51b410c, + 0xd0f6f75f, 0x757d6751, 0x9726084e, 0x32ad9840, 0x07402e13, + 0xa2cbbe1d, 0x6c9b42b5, 0xc910d2bb, 0xfcfd64e8, 0x5976f4e6, + 0xe33abc97, 0x46b12c99, 0x735c9aca, 0xd6d70ac4, 0x1887f66c, + 0xbd0c6662, 0x88e1d031, 0x2d6a403f, 0xcf312f20, 0x6ababf2e, + 0x5f57097d, 0xfadc9973, 0x348c65db, 0x9107f5d5, 0xa4ea4386, + 0x0161d388, 0x0b03d525, 0xae88452b, 0x9b65f378, 0x3eee6376, + 0xf0be9fde, 0x55350fd0, 0x60d8b983, 0xc553298d, 0x27084692, + 0x8283d69c, 0xb76e60cf, 0x12e5f0c1, 0xdcb50c69, 0x793e9c67, + 0x4cd32a34, 0xe958ba3a, 0x5314f24b, 0xf69f6245, 0xc372d416, + 0x66f94418, 0xa8a9b8b0, 0x0d2228be, 0x38cf9eed, 0x9d440ee3, + 0x7f1f61fc, 0xda94f1f2, 0xef7947a1, 0x4af2d7af, 0x84a22b07, + 0x2129bb09, 0x14c40d5a, 0xb14f9d54, 0xad2a31b3, 0x08a1a1bd, + 0x3d4c17ee, 0x98c787e0, 0x56977b48, 0xf31ceb46, 0xc6f15d15, + 0x637acd1b, 0x8121a204, 0x24aa320a, 0x11478459, 0xb4cc1457, + 0x7a9ce8ff, 0xdf1778f1, 0xeafacea2, 0x4f715eac, 0xf53d16dd, + 0x50b686d3, 0x655b3080, 0xc0d0a08e, 0x0e805c26, 0xab0bcc28, + 0x9ee67a7b, 0x3b6dea75, 0xd936856a, 0x7cbd1564, 0x4950a337, + 0xecdb3339, 0x228bcf91, 0x87005f9f, 0xb2ede9cc, 0x176679c2, + 0x1d047f6f, 0xb88fef61, 0x8d625932, 0x28e9c93c, 0xe6b93594, + 0x4332a59a, 0x76df13c9, 0xd35483c7, 0x310fecd8, 0x94847cd6, + 0xa169ca85, 0x04e25a8b, 0xcab2a623, 0x6f39362d, 0x5ad4807e, + 0xff5f1070, 0x45135801, 0xe098c80f, 0xd5757e5c, 0x70feee52, + 0xbeae12fa, 0x1b2582f4, 0x2ec834a7, 0x8b43a4a9, 0x6918cbb6, + 0xcc935bb8, 0xf97eedeb, 0x5cf57de5, 0x92a5814d, 0x372e1143, + 0x02c3a710, 0xa748371e, 0x1607aa4a, 0xb38c3a44, 0x86618c17, + 0x23ea1c19, 0xedbae0b1, 0x483170bf, 0x7ddcc6ec, 0xd85756e2, + 0x3a0c39fd, 0x9f87a9f3, 0xaa6a1fa0, 0x0fe18fae, 0xc1b17306, + 0x643ae308, 0x51d7555b, 0xf45cc555, 0x4e108d24, 0xeb9b1d2a, + 0xde76ab79, 0x7bfd3b77, 0xb5adc7df, 0x102657d1, 0x25cbe182, + 0x8040718c, 0x621b1e93, 0xc7908e9d, 0xf27d38ce, 0x57f6a8c0, + 0x99a65468, 0x3c2dc466, 0x09c07235, 0xac4be23b, 0xa629e496, + 0x03a27498, 0x364fc2cb, 0x93c452c5, 0x5d94ae6d, 0xf81f3e63, + 0xcdf28830, 0x6879183e, 0x8a227721, 0x2fa9e72f, 0x1a44517c, + 0xbfcfc172, 0x719f3dda, 0xd414add4, 0xe1f91b87, 0x44728b89, + 0xfe3ec3f8, 0x5bb553f6, 0x6e58e5a5, 0xcbd375ab, 0x05838903, + 0xa008190d, 0x95e5af5e, 0x306e3f50, 0xd235504f, 0x77bec041, + 0x42537612, 0xe7d8e61c, 0x29881ab4, 0x8c038aba, 0xb9ee3ce9, + 0x1c65ace7}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0x0e908ba500000000, 0x5d26669000000000, + 0x53b6ed3500000000, 0xfb4abdfb00000000, 0xf5da365e00000000, + 0xa66cdb6b00000000, 0xa8fc50ce00000000, 0xb7930b2c00000000, + 0xb903808900000000, 0xeab56dbc00000000, 0xe425e61900000000, + 0x4cd9b6d700000000, 0x42493d7200000000, 0x11ffd04700000000, + 0x1f6f5be200000000, 0x6e27175800000000, 0x60b79cfd00000000, + 0x330171c800000000, 0x3d91fa6d00000000, 0x956daaa300000000, + 0x9bfd210600000000, 0xc84bcc3300000000, 0xc6db479600000000, + 0xd9b41c7400000000, 0xd72497d100000000, 0x84927ae400000000, + 0x8a02f14100000000, 0x22fea18f00000000, 0x2c6e2a2a00000000, + 0x7fd8c71f00000000, 0x71484cba00000000, 0xdc4e2eb000000000, + 0xd2dea51500000000, 0x8168482000000000, 0x8ff8c38500000000, + 0x2704934b00000000, 0x299418ee00000000, 0x7a22f5db00000000, + 0x74b27e7e00000000, 0x6bdd259c00000000, 0x654dae3900000000, + 0x36fb430c00000000, 0x386bc8a900000000, 0x9097986700000000, + 0x9e0713c200000000, 0xcdb1fef700000000, 0xc321755200000000, + 0xb26939e800000000, 0xbcf9b24d00000000, 0xef4f5f7800000000, + 0xe1dfd4dd00000000, 0x4923841300000000, 0x47b30fb600000000, + 0x1405e28300000000, 0x1a95692600000000, 0x05fa32c400000000, + 0x0b6ab96100000000, 0x58dc545400000000, 0x564cdff100000000, + 0xfeb08f3f00000000, 0xf020049a00000000, 0xa396e9af00000000, + 0xad06620a00000000, 0xf99b2dbb00000000, 0xf70ba61e00000000, + 0xa4bd4b2b00000000, 0xaa2dc08e00000000, 0x02d1904000000000, + 0x0c411be500000000, 0x5ff7f6d000000000, 0x51677d7500000000, + 0x4e08269700000000, 0x4098ad3200000000, 0x132e400700000000, + 0x1dbecba200000000, 0xb5429b6c00000000, 0xbbd210c900000000, + 0xe864fdfc00000000, 0xe6f4765900000000, 0x97bc3ae300000000, + 0x992cb14600000000, 0xca9a5c7300000000, 0xc40ad7d600000000, + 0x6cf6871800000000, 0x62660cbd00000000, 0x31d0e18800000000, + 0x3f406a2d00000000, 0x202f31cf00000000, 0x2ebfba6a00000000, + 0x7d09575f00000000, 0x7399dcfa00000000, 0xdb658c3400000000, + 0xd5f5079100000000, 0x8643eaa400000000, 0x88d3610100000000, + 0x25d5030b00000000, 0x2b4588ae00000000, 0x78f3659b00000000, + 0x7663ee3e00000000, 0xde9fbef000000000, 0xd00f355500000000, + 0x83b9d86000000000, 0x8d2953c500000000, 0x9246082700000000, + 0x9cd6838200000000, 0xcf606eb700000000, 0xc1f0e51200000000, + 0x690cb5dc00000000, 0x679c3e7900000000, 0x342ad34c00000000, + 0x3aba58e900000000, 0x4bf2145300000000, 0x45629ff600000000, + 0x16d472c300000000, 0x1844f96600000000, 0xb0b8a9a800000000, + 0xbe28220d00000000, 0xed9ecf3800000000, 0xe30e449d00000000, + 0xfc611f7f00000000, 0xf2f194da00000000, 0xa14779ef00000000, + 0xafd7f24a00000000, 0x072ba28400000000, 0x09bb292100000000, + 0x5a0dc41400000000, 0x549d4fb100000000, 0xb3312aad00000000, + 0xbda1a10800000000, 0xee174c3d00000000, 0xe087c79800000000, + 0x487b975600000000, 0x46eb1cf300000000, 0x155df1c600000000, + 0x1bcd7a6300000000, 0x04a2218100000000, 0x0a32aa2400000000, + 0x5984471100000000, 0x5714ccb400000000, 0xffe89c7a00000000, + 0xf17817df00000000, 0xa2cefaea00000000, 0xac5e714f00000000, + 0xdd163df500000000, 0xd386b65000000000, 0x80305b6500000000, + 0x8ea0d0c000000000, 0x265c800e00000000, 0x28cc0bab00000000, + 0x7b7ae69e00000000, 0x75ea6d3b00000000, 0x6a8536d900000000, + 0x6415bd7c00000000, 0x37a3504900000000, 0x3933dbec00000000, + 0x91cf8b2200000000, 0x9f5f008700000000, 0xcce9edb200000000, + 0xc279661700000000, 0x6f7f041d00000000, 0x61ef8fb800000000, + 0x3259628d00000000, 0x3cc9e92800000000, 0x9435b9e600000000, + 0x9aa5324300000000, 0xc913df7600000000, 0xc78354d300000000, + 0xd8ec0f3100000000, 0xd67c849400000000, 0x85ca69a100000000, + 0x8b5ae20400000000, 0x23a6b2ca00000000, 0x2d36396f00000000, + 0x7e80d45a00000000, 0x70105fff00000000, 0x0158134500000000, + 0x0fc898e000000000, 0x5c7e75d500000000, 0x52eefe7000000000, + 0xfa12aebe00000000, 0xf482251b00000000, 0xa734c82e00000000, + 0xa9a4438b00000000, 0xb6cb186900000000, 0xb85b93cc00000000, + 0xebed7ef900000000, 0xe57df55c00000000, 0x4d81a59200000000, + 0x43112e3700000000, 0x10a7c30200000000, 0x1e3748a700000000, + 0x4aaa071600000000, 0x443a8cb300000000, 0x178c618600000000, + 0x191cea2300000000, 0xb1e0baed00000000, 0xbf70314800000000, + 0xecc6dc7d00000000, 0xe25657d800000000, 0xfd390c3a00000000, + 0xf3a9879f00000000, 0xa01f6aaa00000000, 0xae8fe10f00000000, + 0x0673b1c100000000, 0x08e33a6400000000, 0x5b55d75100000000, + 0x55c55cf400000000, 0x248d104e00000000, 0x2a1d9beb00000000, + 0x79ab76de00000000, 0x773bfd7b00000000, 0xdfc7adb500000000, + 0xd157261000000000, 0x82e1cb2500000000, 0x8c71408000000000, + 0x931e1b6200000000, 0x9d8e90c700000000, 0xce387df200000000, + 0xc0a8f65700000000, 0x6854a69900000000, 0x66c42d3c00000000, + 0x3572c00900000000, 0x3be24bac00000000, 0x96e429a600000000, + 0x9874a20300000000, 0xcbc24f3600000000, 0xc552c49300000000, + 0x6dae945d00000000, 0x633e1ff800000000, 0x3088f2cd00000000, + 0x3e18796800000000, 0x2177228a00000000, 0x2fe7a92f00000000, + 0x7c51441a00000000, 0x72c1cfbf00000000, 0xda3d9f7100000000, + 0xd4ad14d400000000, 0x871bf9e100000000, 0x898b724400000000, + 0xf8c33efe00000000, 0xf653b55b00000000, 0xa5e5586e00000000, + 0xab75d3cb00000000, 0x0389830500000000, 0x0d1908a000000000, + 0x5eafe59500000000, 0x503f6e3000000000, 0x4f5035d200000000, + 0x41c0be7700000000, 0x1276534200000000, 0x1ce6d8e700000000, + 0xb41a882900000000, 0xba8a038c00000000, 0xe93ceeb900000000, + 0xe7ac651c00000000}, + {0x0000000000000000, 0x97a61de700000000, 0x6f4b4a1500000000, + 0xf8ed57f200000000, 0xde96942a00000000, 0x493089cd00000000, + 0xb1ddde3f00000000, 0x267bc3d800000000, 0xbc2d295500000000, + 0x2b8b34b200000000, 0xd366634000000000, 0x44c07ea700000000, + 0x62bbbd7f00000000, 0xf51da09800000000, 0x0df0f76a00000000, + 0x9a56ea8d00000000, 0x785b52aa00000000, 0xeffd4f4d00000000, + 0x171018bf00000000, 0x80b6055800000000, 0xa6cdc68000000000, + 0x316bdb6700000000, 0xc9868c9500000000, 0x5e20917200000000, + 0xc4767bff00000000, 0x53d0661800000000, 0xab3d31ea00000000, + 0x3c9b2c0d00000000, 0x1ae0efd500000000, 0x8d46f23200000000, + 0x75aba5c000000000, 0xe20db82700000000, 0xb1b0d58f00000000, + 0x2616c86800000000, 0xdefb9f9a00000000, 0x495d827d00000000, + 0x6f2641a500000000, 0xf8805c4200000000, 0x006d0bb000000000, + 0x97cb165700000000, 0x0d9dfcda00000000, 0x9a3be13d00000000, + 0x62d6b6cf00000000, 0xf570ab2800000000, 0xd30b68f000000000, + 0x44ad751700000000, 0xbc4022e500000000, 0x2be63f0200000000, + 0xc9eb872500000000, 0x5e4d9ac200000000, 0xa6a0cd3000000000, + 0x3106d0d700000000, 0x177d130f00000000, 0x80db0ee800000000, + 0x7836591a00000000, 0xef9044fd00000000, 0x75c6ae7000000000, + 0xe260b39700000000, 0x1a8de46500000000, 0x8d2bf98200000000, + 0xab503a5a00000000, 0x3cf627bd00000000, 0xc41b704f00000000, + 0x53bd6da800000000, 0x2367dac400000000, 0xb4c1c72300000000, + 0x4c2c90d100000000, 0xdb8a8d3600000000, 0xfdf14eee00000000, + 0x6a57530900000000, 0x92ba04fb00000000, 0x051c191c00000000, + 0x9f4af39100000000, 0x08ecee7600000000, 0xf001b98400000000, + 0x67a7a46300000000, 0x41dc67bb00000000, 0xd67a7a5c00000000, + 0x2e972dae00000000, 0xb931304900000000, 0x5b3c886e00000000, + 0xcc9a958900000000, 0x3477c27b00000000, 0xa3d1df9c00000000, + 0x85aa1c4400000000, 0x120c01a300000000, 0xeae1565100000000, + 0x7d474bb600000000, 0xe711a13b00000000, 0x70b7bcdc00000000, + 0x885aeb2e00000000, 0x1ffcf6c900000000, 0x3987351100000000, + 0xae2128f600000000, 0x56cc7f0400000000, 0xc16a62e300000000, + 0x92d70f4b00000000, 0x057112ac00000000, 0xfd9c455e00000000, + 0x6a3a58b900000000, 0x4c419b6100000000, 0xdbe7868600000000, + 0x230ad17400000000, 0xb4accc9300000000, 0x2efa261e00000000, + 0xb95c3bf900000000, 0x41b16c0b00000000, 0xd61771ec00000000, + 0xf06cb23400000000, 0x67caafd300000000, 0x9f27f82100000000, + 0x0881e5c600000000, 0xea8c5de100000000, 0x7d2a400600000000, + 0x85c717f400000000, 0x12610a1300000000, 0x341ac9cb00000000, + 0xa3bcd42c00000000, 0x5b5183de00000000, 0xccf79e3900000000, + 0x56a174b400000000, 0xc107695300000000, 0x39ea3ea100000000, + 0xae4c234600000000, 0x8837e09e00000000, 0x1f91fd7900000000, + 0xe77caa8b00000000, 0x70dab76c00000000, 0x07c8c55200000000, + 0x906ed8b500000000, 0x68838f4700000000, 0xff2592a000000000, + 0xd95e517800000000, 0x4ef84c9f00000000, 0xb6151b6d00000000, + 0x21b3068a00000000, 0xbbe5ec0700000000, 0x2c43f1e000000000, + 0xd4aea61200000000, 0x4308bbf500000000, 0x6573782d00000000, + 0xf2d565ca00000000, 0x0a38323800000000, 0x9d9e2fdf00000000, + 0x7f9397f800000000, 0xe8358a1f00000000, 0x10d8dded00000000, + 0x877ec00a00000000, 0xa10503d200000000, 0x36a31e3500000000, + 0xce4e49c700000000, 0x59e8542000000000, 0xc3bebead00000000, + 0x5418a34a00000000, 0xacf5f4b800000000, 0x3b53e95f00000000, + 0x1d282a8700000000, 0x8a8e376000000000, 0x7263609200000000, + 0xe5c57d7500000000, 0xb67810dd00000000, 0x21de0d3a00000000, + 0xd9335ac800000000, 0x4e95472f00000000, 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0x8ea1ef0400000000, + 0x24a435f500000000, 0x9bac2a3c00000000, 0x31a9f0cd00000000, + 0xf08f719600000000, 0x5a8aab6700000000, 0xe582b4ae00000000, + 0x4f876e5f00000000, 0xda95fbe700000000, 0x7090211600000000, + 0xcf983edf00000000, 0x659de42e00000000, 0x4dd53c6800000000, + 0xe7d0e69900000000, 0x58d8f95000000000, 0xf2dd23a100000000, + 0x67cfb61900000000, 0xcdca6ce800000000, 0x72c2732100000000, + 0xd8c7a9d000000000, 0x19e1288b00000000, 0xb3e4f27a00000000, + 0x0cecedb300000000, 0xa6e9374200000000, 0x33fba2fa00000000, + 0x99fe780b00000000, 0x26f667c200000000, 0x8cf3bd3300000000, + 0x7666d74f00000000, 0xdc630dbe00000000, 0x636b127700000000, + 0xc96ec88600000000, 0x5c7c5d3e00000000, 0xf67987cf00000000, + 0x4971980600000000, 0xe37442f700000000, 0x2252c3ac00000000, + 0x8857195d00000000, 0x375f069400000000, 0x9d5adc6500000000, + 0x084849dd00000000, 0xa24d932c00000000, 0x1d458ce500000000, + 0xb740561400000000, 0x9f088e5200000000, 0x350d54a300000000, + 0x8a054b6a00000000, 0x2000919b00000000, 0xb512042300000000, + 0x1f17ded200000000, 0xa01fc11b00000000, 0x0a1a1bea00000000, + 0xcb3c9ab100000000, 0x6139404000000000, 0xde315f8900000000, + 0x7434857800000000, 0xe12610c000000000, 0x4b23ca3100000000, + 0xf42bd5f800000000, 0x5e2e0f0900000000, 0x4877cbea00000000, + 0xe272111b00000000, 0x5d7a0ed200000000, 0xf77fd42300000000, + 0x626d419b00000000, 0xc8689b6a00000000, 0x776084a300000000, + 0xdd655e5200000000, 0x1c43df0900000000, 0xb64605f800000000, + 0x094e1a3100000000, 0xa34bc0c000000000, 0x3659557800000000, + 0x9c5c8f8900000000, 0x2354904000000000, 0x89514ab100000000, + 0xa11992f700000000, 0x0b1c480600000000, 0xb41457cf00000000, + 0x1e118d3e00000000, 0x8b03188600000000, 0x2106c27700000000, + 0x9e0eddbe00000000, 0x340b074f00000000, 0xf52d861400000000, + 0x5f285ce500000000, 0xe020432c00000000, 0x4a2599dd00000000, + 0xdf370c6500000000, 0x7532d69400000000, 0xca3ac95d00000000, + 0x603f13ac00000000, 0x9aaa79d000000000, 0x30afa32100000000, + 0x8fa7bce800000000, 0x25a2661900000000, 0xb0b0f3a100000000, + 0x1ab5295000000000, 0xa5bd369900000000, 0x0fb8ec6800000000, + 0xce9e6d3300000000, 0x649bb7c200000000, 0xdb93a80b00000000, + 0x719672fa00000000, 0xe484e74200000000, 0x4e813db300000000, + 0xf189227a00000000, 0x5b8cf88b00000000, 0x73c420cd00000000, + 0xd9c1fa3c00000000, 0x66c9e5f500000000, 0xcccc3f0400000000, + 0x59deaabc00000000, 0xf3db704d00000000, 0x4cd36f8400000000, + 0xe6d6b57500000000, 0x27f0342e00000000, 0x8df5eedf00000000, + 0x32fdf11600000000, 0x98f82be700000000, 0x0deabe5f00000000, + 0xa7ef64ae00000000, 0x18e77b6700000000, 0xb2e2a19600000000, + 0xecccae9f00000000, 0x46c9746e00000000, 0xf9c16ba700000000, + 0x53c4b15600000000, 0xc6d624ee00000000, 0x6cd3fe1f00000000, + 0xd3dbe1d600000000, 0x79de3b2700000000, 0xb8f8ba7c00000000, + 0x12fd608d00000000, 0xadf57f4400000000, 0x07f0a5b500000000, + 0x92e2300d00000000, 0x38e7eafc00000000, 0x87eff53500000000, + 0x2dea2fc400000000, 0x05a2f78200000000, 0xafa72d7300000000, + 0x10af32ba00000000, 0xbaaae84b00000000, 0x2fb87df300000000, + 0x85bda70200000000, 0x3ab5b8cb00000000, 0x90b0623a00000000, + 0x5196e36100000000, 0xfb93399000000000, 0x449b265900000000, + 0xee9efca800000000, 0x7b8c691000000000, 0xd189b3e100000000, + 0x6e81ac2800000000, 0xc48476d900000000, 0x3e111ca500000000, + 0x9414c65400000000, 0x2b1cd99d00000000, 0x8119036c00000000, + 0x140b96d400000000, 0xbe0e4c2500000000, 0x010653ec00000000, + 0xab03891d00000000, 0x6a25084600000000, 0xc020d2b700000000, + 0x7f28cd7e00000000, 0xd52d178f00000000, 0x403f823700000000, + 0xea3a58c600000000, 0x5532470f00000000, 0xff379dfe00000000, + 0xd77f45b800000000, 0x7d7a9f4900000000, 0xc272808000000000, + 0x68775a7100000000, 0xfd65cfc900000000, 0x5760153800000000, + 0xe8680af100000000, 0x426dd00000000000, 0x834b515b00000000, + 0x294e8baa00000000, 0x9646946300000000, 0x3c434e9200000000, + 0xa951db2a00000000, 0x035401db00000000, 0xbc5c1e1200000000, + 0x1659c4e300000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xae689191, 0x87a02563, 0x29c8b4f2, 0xd4314c87, + 0x7a59dd16, 0x539169e4, 0xfdf9f875, 0x73139f4f, 0xdd7b0ede, + 0xf4b3ba2c, 0x5adb2bbd, 0xa722d3c8, 0x094a4259, 0x2082f6ab, + 0x8eea673a, 0xe6273e9e, 0x484faf0f, 0x61871bfd, 0xcfef8a6c, + 0x32167219, 0x9c7ee388, 0xb5b6577a, 0x1bdec6eb, 0x9534a1d1, + 0x3b5c3040, 0x129484b2, 0xbcfc1523, 0x4105ed56, 0xef6d7cc7, + 0xc6a5c835, 0x68cd59a4, 0x173f7b7d, 0xb957eaec, 0x909f5e1e, + 0x3ef7cf8f, 0xc30e37fa, 0x6d66a66b, 0x44ae1299, 0xeac68308, + 0x642ce432, 0xca4475a3, 0xe38cc151, 0x4de450c0, 0xb01da8b5, + 0x1e753924, 0x37bd8dd6, 0x99d51c47, 0xf11845e3, 0x5f70d472, + 0x76b86080, 0xd8d0f111, 0x25290964, 0x8b4198f5, 0xa2892c07, + 0x0ce1bd96, 0x820bdaac, 0x2c634b3d, 0x05abffcf, 0xabc36e5e, + 0x563a962b, 0xf85207ba, 0xd19ab348, 0x7ff222d9, 0x2e7ef6fa, + 0x8016676b, 0xa9ded399, 0x07b64208, 0xfa4fba7d, 0x54272bec, + 0x7def9f1e, 0xd3870e8f, 0x5d6d69b5, 0xf305f824, 0xdacd4cd6, + 0x74a5dd47, 0x895c2532, 0x2734b4a3, 0x0efc0051, 0xa09491c0, + 0xc859c864, 0x663159f5, 0x4ff9ed07, 0xe1917c96, 0x1c6884e3, + 0xb2001572, 0x9bc8a180, 0x35a03011, 0xbb4a572b, 0x1522c6ba, + 0x3cea7248, 0x9282e3d9, 0x6f7b1bac, 0xc1138a3d, 0xe8db3ecf, + 0x46b3af5e, 0x39418d87, 0x97291c16, 0xbee1a8e4, 0x10893975, + 0xed70c100, 0x43185091, 0x6ad0e463, 0xc4b875f2, 0x4a5212c8, + 0xe43a8359, 0xcdf237ab, 0x639aa63a, 0x9e635e4f, 0x300bcfde, + 0x19c37b2c, 0xb7abeabd, 0xdf66b319, 0x710e2288, 0x58c6967a, + 0xf6ae07eb, 0x0b57ff9e, 0xa53f6e0f, 0x8cf7dafd, 0x229f4b6c, + 0xac752c56, 0x021dbdc7, 0x2bd50935, 0x85bd98a4, 0x784460d1, + 0xd62cf140, 0xffe445b2, 0x518cd423, 0x5cfdedf4, 0xf2957c65, + 0xdb5dc897, 0x75355906, 0x88cca173, 0x26a430e2, 0x0f6c8410, + 0xa1041581, 0x2fee72bb, 0x8186e32a, 0xa84e57d8, 0x0626c649, + 0xfbdf3e3c, 0x55b7afad, 0x7c7f1b5f, 0xd2178ace, 0xbadad36a, + 0x14b242fb, 0x3d7af609, 0x93126798, 0x6eeb9fed, 0xc0830e7c, + 0xe94bba8e, 0x47232b1f, 0xc9c94c25, 0x67a1ddb4, 0x4e696946, + 0xe001f8d7, 0x1df800a2, 0xb3909133, 0x9a5825c1, 0x3430b450, + 0x4bc29689, 0xe5aa0718, 0xcc62b3ea, 0x620a227b, 0x9ff3da0e, + 0x319b4b9f, 0x1853ff6d, 0xb63b6efc, 0x38d109c6, 0x96b99857, + 0xbf712ca5, 0x1119bd34, 0xece04541, 0x4288d4d0, 0x6b406022, + 0xc528f1b3, 0xade5a817, 0x038d3986, 0x2a458d74, 0x842d1ce5, + 0x79d4e490, 0xd7bc7501, 0xfe74c1f3, 0x501c5062, 0xdef63758, + 0x709ea6c9, 0x5956123b, 0xf73e83aa, 0x0ac77bdf, 0xa4afea4e, + 0x8d675ebc, 0x230fcf2d, 0x72831b0e, 0xdceb8a9f, 0xf5233e6d, + 0x5b4baffc, 0xa6b25789, 0x08dac618, 0x211272ea, 0x8f7ae37b, + 0x01908441, 0xaff815d0, 0x8630a122, 0x285830b3, 0xd5a1c8c6, + 0x7bc95957, 0x5201eda5, 0xfc697c34, 0x94a42590, 0x3accb401, + 0x130400f3, 0xbd6c9162, 0x40956917, 0xeefdf886, 0xc7354c74, + 0x695ddde5, 0xe7b7badf, 0x49df2b4e, 0x60179fbc, 0xce7f0e2d, + 0x3386f658, 0x9dee67c9, 0xb426d33b, 0x1a4e42aa, 0x65bc6073, + 0xcbd4f1e2, 0xe21c4510, 0x4c74d481, 0xb18d2cf4, 0x1fe5bd65, + 0x362d0997, 0x98459806, 0x16afff3c, 0xb8c76ead, 0x910fda5f, + 0x3f674bce, 0xc29eb3bb, 0x6cf6222a, 0x453e96d8, 0xeb560749, + 0x839b5eed, 0x2df3cf7c, 0x043b7b8e, 0xaa53ea1f, 0x57aa126a, + 0xf9c283fb, 0xd00a3709, 0x7e62a698, 0xf088c1a2, 0x5ee05033, + 0x7728e4c1, 0xd9407550, 0x24b98d25, 0x8ad11cb4, 0xa319a846, + 0x0d7139d7}, + {0x00000000, 0xb9fbdbe8, 0xa886b191, 0x117d6a79, 0x8a7c6563, + 0x3387be8b, 0x22fad4f2, 0x9b010f1a, 0xcf89cc87, 0x7672176f, + 0x670f7d16, 0xdef4a6fe, 0x45f5a9e4, 0xfc0e720c, 0xed731875, + 0x5488c39d, 0x44629f4f, 0xfd9944a7, 0xece42ede, 0x551ff536, + 0xce1efa2c, 0x77e521c4, 0x66984bbd, 0xdf639055, 0x8beb53c8, + 0x32108820, 0x236de259, 0x9a9639b1, 0x019736ab, 0xb86ced43, + 0xa911873a, 0x10ea5cd2, 0x88c53e9e, 0x313ee576, 0x20438f0f, + 0x99b854e7, 0x02b95bfd, 0xbb428015, 0xaa3fea6c, 0x13c43184, + 0x474cf219, 0xfeb729f1, 0xefca4388, 0x56319860, 0xcd30977a, + 0x74cb4c92, 0x65b626eb, 0xdc4dfd03, 0xcca7a1d1, 0x755c7a39, + 0x64211040, 0xdddacba8, 0x46dbc4b2, 0xff201f5a, 0xee5d7523, + 0x57a6aecb, 0x032e6d56, 0xbad5b6be, 0xaba8dcc7, 0x1253072f, + 0x89520835, 0x30a9d3dd, 0x21d4b9a4, 0x982f624c, 0xcafb7b7d, + 0x7300a095, 0x627dcaec, 0xdb861104, 0x40871e1e, 0xf97cc5f6, + 0xe801af8f, 0x51fa7467, 0x0572b7fa, 0xbc896c12, 0xadf4066b, + 0x140fdd83, 0x8f0ed299, 0x36f50971, 0x27886308, 0x9e73b8e0, + 0x8e99e432, 0x37623fda, 0x261f55a3, 0x9fe48e4b, 0x04e58151, + 0xbd1e5ab9, 0xac6330c0, 0x1598eb28, 0x411028b5, 0xf8ebf35d, + 0xe9969924, 0x506d42cc, 0xcb6c4dd6, 0x7297963e, 0x63eafc47, + 0xda1127af, 0x423e45e3, 0xfbc59e0b, 0xeab8f472, 0x53432f9a, + 0xc8422080, 0x71b9fb68, 0x60c49111, 0xd93f4af9, 0x8db78964, + 0x344c528c, 0x253138f5, 0x9ccae31d, 0x07cbec07, 0xbe3037ef, + 0xaf4d5d96, 0x16b6867e, 0x065cdaac, 0xbfa70144, 0xaeda6b3d, + 0x1721b0d5, 0x8c20bfcf, 0x35db6427, 0x24a60e5e, 0x9d5dd5b6, + 0xc9d5162b, 0x702ecdc3, 0x6153a7ba, 0xd8a87c52, 0x43a97348, + 0xfa52a8a0, 0xeb2fc2d9, 0x52d41931, 0x4e87f0bb, 0xf77c2b53, + 0xe601412a, 0x5ffa9ac2, 0xc4fb95d8, 0x7d004e30, 0x6c7d2449, + 0xd586ffa1, 0x810e3c3c, 0x38f5e7d4, 0x29888dad, 0x90735645, + 0x0b72595f, 0xb28982b7, 0xa3f4e8ce, 0x1a0f3326, 0x0ae56ff4, + 0xb31eb41c, 0xa263de65, 0x1b98058d, 0x80990a97, 0x3962d17f, + 0x281fbb06, 0x91e460ee, 0xc56ca373, 0x7c97789b, 0x6dea12e2, + 0xd411c90a, 0x4f10c610, 0xf6eb1df8, 0xe7967781, 0x5e6dac69, + 0xc642ce25, 0x7fb915cd, 0x6ec47fb4, 0xd73fa45c, 0x4c3eab46, + 0xf5c570ae, 0xe4b81ad7, 0x5d43c13f, 0x09cb02a2, 0xb030d94a, + 0xa14db333, 0x18b668db, 0x83b767c1, 0x3a4cbc29, 0x2b31d650, + 0x92ca0db8, 0x8220516a, 0x3bdb8a82, 0x2aa6e0fb, 0x935d3b13, + 0x085c3409, 0xb1a7efe1, 0xa0da8598, 0x19215e70, 0x4da99ded, + 0xf4524605, 0xe52f2c7c, 0x5cd4f794, 0xc7d5f88e, 0x7e2e2366, + 0x6f53491f, 0xd6a892f7, 0x847c8bc6, 0x3d87502e, 0x2cfa3a57, + 0x9501e1bf, 0x0e00eea5, 0xb7fb354d, 0xa6865f34, 0x1f7d84dc, + 0x4bf54741, 0xf20e9ca9, 0xe373f6d0, 0x5a882d38, 0xc1892222, + 0x7872f9ca, 0x690f93b3, 0xd0f4485b, 0xc01e1489, 0x79e5cf61, + 0x6898a518, 0xd1637ef0, 0x4a6271ea, 0xf399aa02, 0xe2e4c07b, + 0x5b1f1b93, 0x0f97d80e, 0xb66c03e6, 0xa711699f, 0x1eeab277, + 0x85ebbd6d, 0x3c106685, 0x2d6d0cfc, 0x9496d714, 0x0cb9b558, + 0xb5426eb0, 0xa43f04c9, 0x1dc4df21, 0x86c5d03b, 0x3f3e0bd3, + 0x2e4361aa, 0x97b8ba42, 0xc33079df, 0x7acba237, 0x6bb6c84e, + 0xd24d13a6, 0x494c1cbc, 0xf0b7c754, 0xe1caad2d, 0x583176c5, + 0x48db2a17, 0xf120f1ff, 0xe05d9b86, 0x59a6406e, 0xc2a74f74, + 0x7b5c949c, 0x6a21fee5, 0xd3da250d, 0x8752e690, 0x3ea93d78, + 0x2fd45701, 0x962f8ce9, 0x0d2e83f3, 0xb4d5581b, 0xa5a83262, + 0x1c53e98a}, + {0x00000000, 0x9d0fe176, 0xe16ec4ad, 0x7c6125db, 0x19ac8f1b, + 0x84a36e6d, 0xf8c24bb6, 0x65cdaac0, 0x33591e36, 0xae56ff40, + 0xd237da9b, 0x4f383bed, 0x2af5912d, 0xb7fa705b, 0xcb9b5580, + 0x5694b4f6, 0x66b23c6c, 0xfbbddd1a, 0x87dcf8c1, 0x1ad319b7, + 0x7f1eb377, 0xe2115201, 0x9e7077da, 0x037f96ac, 0x55eb225a, + 0xc8e4c32c, 0xb485e6f7, 0x298a0781, 0x4c47ad41, 0xd1484c37, + 0xad2969ec, 0x3026889a, 0xcd6478d8, 0x506b99ae, 0x2c0abc75, + 0xb1055d03, 0xd4c8f7c3, 0x49c716b5, 0x35a6336e, 0xa8a9d218, + 0xfe3d66ee, 0x63328798, 0x1f53a243, 0x825c4335, 0xe791e9f5, + 0x7a9e0883, 0x06ff2d58, 0x9bf0cc2e, 0xabd644b4, 0x36d9a5c2, + 0x4ab88019, 0xd7b7616f, 0xb27acbaf, 0x2f752ad9, 0x53140f02, + 0xce1bee74, 0x988f5a82, 0x0580bbf4, 0x79e19e2f, 0xe4ee7f59, + 0x8123d599, 0x1c2c34ef, 0x604d1134, 0xfd42f042, 0x41b9f7f1, + 0xdcb61687, 0xa0d7335c, 0x3dd8d22a, 0x581578ea, 0xc51a999c, + 0xb97bbc47, 0x24745d31, 0x72e0e9c7, 0xefef08b1, 0x938e2d6a, + 0x0e81cc1c, 0x6b4c66dc, 0xf64387aa, 0x8a22a271, 0x172d4307, + 0x270bcb9d, 0xba042aeb, 0xc6650f30, 0x5b6aee46, 0x3ea74486, + 0xa3a8a5f0, 0xdfc9802b, 0x42c6615d, 0x1452d5ab, 0x895d34dd, + 0xf53c1106, 0x6833f070, 0x0dfe5ab0, 0x90f1bbc6, 0xec909e1d, + 0x719f7f6b, 0x8cdd8f29, 0x11d26e5f, 0x6db34b84, 0xf0bcaaf2, + 0x95710032, 0x087ee144, 0x741fc49f, 0xe91025e9, 0xbf84911f, + 0x228b7069, 0x5eea55b2, 0xc3e5b4c4, 0xa6281e04, 0x3b27ff72, + 0x4746daa9, 0xda493bdf, 0xea6fb345, 0x77605233, 0x0b0177e8, + 0x960e969e, 0xf3c33c5e, 0x6eccdd28, 0x12adf8f3, 0x8fa21985, + 0xd936ad73, 0x44394c05, 0x385869de, 0xa55788a8, 0xc09a2268, + 0x5d95c31e, 0x21f4e6c5, 0xbcfb07b3, 0x8373efe2, 0x1e7c0e94, + 0x621d2b4f, 0xff12ca39, 0x9adf60f9, 0x07d0818f, 0x7bb1a454, + 0xe6be4522, 0xb02af1d4, 0x2d2510a2, 0x51443579, 0xcc4bd40f, + 0xa9867ecf, 0x34899fb9, 0x48e8ba62, 0xd5e75b14, 0xe5c1d38e, + 0x78ce32f8, 0x04af1723, 0x99a0f655, 0xfc6d5c95, 0x6162bde3, + 0x1d039838, 0x800c794e, 0xd698cdb8, 0x4b972cce, 0x37f60915, + 0xaaf9e863, 0xcf3442a3, 0x523ba3d5, 0x2e5a860e, 0xb3556778, + 0x4e17973a, 0xd318764c, 0xaf795397, 0x3276b2e1, 0x57bb1821, + 0xcab4f957, 0xb6d5dc8c, 0x2bda3dfa, 0x7d4e890c, 0xe041687a, + 0x9c204da1, 0x012facd7, 0x64e20617, 0xf9ede761, 0x858cc2ba, + 0x188323cc, 0x28a5ab56, 0xb5aa4a20, 0xc9cb6ffb, 0x54c48e8d, + 0x3109244d, 0xac06c53b, 0xd067e0e0, 0x4d680196, 0x1bfcb560, + 0x86f35416, 0xfa9271cd, 0x679d90bb, 0x02503a7b, 0x9f5fdb0d, + 0xe33efed6, 0x7e311fa0, 0xc2ca1813, 0x5fc5f965, 0x23a4dcbe, + 0xbeab3dc8, 0xdb669708, 0x4669767e, 0x3a0853a5, 0xa707b2d3, + 0xf1930625, 0x6c9ce753, 0x10fdc288, 0x8df223fe, 0xe83f893e, + 0x75306848, 0x09514d93, 0x945eace5, 0xa478247f, 0x3977c509, + 0x4516e0d2, 0xd81901a4, 0xbdd4ab64, 0x20db4a12, 0x5cba6fc9, + 0xc1b58ebf, 0x97213a49, 0x0a2edb3f, 0x764ffee4, 0xeb401f92, + 0x8e8db552, 0x13825424, 0x6fe371ff, 0xf2ec9089, 0x0fae60cb, + 0x92a181bd, 0xeec0a466, 0x73cf4510, 0x1602efd0, 0x8b0d0ea6, + 0xf76c2b7d, 0x6a63ca0b, 0x3cf77efd, 0xa1f89f8b, 0xdd99ba50, + 0x40965b26, 0x255bf1e6, 0xb8541090, 0xc435354b, 0x593ad43d, + 0x691c5ca7, 0xf413bdd1, 0x8872980a, 0x157d797c, 0x70b0d3bc, + 0xedbf32ca, 0x91de1711, 0x0cd1f667, 0x5a454291, 0xc74aa3e7, + 0xbb2b863c, 0x2624674a, 0x43e9cd8a, 0xdee62cfc, 0xa2870927, + 0x3f88e851}, + {0x00000000, 0xdd96d985, 0x605cb54b, 0xbdca6cce, 0xc0b96a96, + 0x1d2fb313, 0xa0e5dfdd, 0x7d730658, 0x5a03d36d, 0x87950ae8, + 0x3a5f6626, 0xe7c9bfa3, 0x9abab9fb, 0x472c607e, 0xfae60cb0, + 0x2770d535, 0xb407a6da, 0x69917f5f, 0xd45b1391, 0x09cdca14, + 0x74becc4c, 0xa92815c9, 0x14e27907, 0xc974a082, 0xee0475b7, + 0x3392ac32, 0x8e58c0fc, 0x53ce1979, 0x2ebd1f21, 0xf32bc6a4, + 0x4ee1aa6a, 0x937773ef, 0xb37e4bf5, 0x6ee89270, 0xd322febe, + 0x0eb4273b, 0x73c72163, 0xae51f8e6, 0x139b9428, 0xce0d4dad, + 0xe97d9898, 0x34eb411d, 0x89212dd3, 0x54b7f456, 0x29c4f20e, + 0xf4522b8b, 0x49984745, 0x940e9ec0, 0x0779ed2f, 0xdaef34aa, + 0x67255864, 0xbab381e1, 0xc7c087b9, 0x1a565e3c, 0xa79c32f2, + 0x7a0aeb77, 0x5d7a3e42, 0x80ece7c7, 0x3d268b09, 0xe0b0528c, + 0x9dc354d4, 0x40558d51, 0xfd9fe19f, 0x2009381a, 0xbd8d91ab, + 0x601b482e, 0xddd124e0, 0x0047fd65, 0x7d34fb3d, 0xa0a222b8, + 0x1d684e76, 0xc0fe97f3, 0xe78e42c6, 0x3a189b43, 0x87d2f78d, + 0x5a442e08, 0x27372850, 0xfaa1f1d5, 0x476b9d1b, 0x9afd449e, + 0x098a3771, 0xd41ceef4, 0x69d6823a, 0xb4405bbf, 0xc9335de7, + 0x14a58462, 0xa96fe8ac, 0x74f93129, 0x5389e41c, 0x8e1f3d99, + 0x33d55157, 0xee4388d2, 0x93308e8a, 0x4ea6570f, 0xf36c3bc1, + 0x2efae244, 0x0ef3da5e, 0xd36503db, 0x6eaf6f15, 0xb339b690, + 0xce4ab0c8, 0x13dc694d, 0xae160583, 0x7380dc06, 0x54f00933, + 0x8966d0b6, 0x34acbc78, 0xe93a65fd, 0x944963a5, 0x49dfba20, + 0xf415d6ee, 0x29830f6b, 0xbaf47c84, 0x6762a501, 0xdaa8c9cf, + 0x073e104a, 0x7a4d1612, 0xa7dbcf97, 0x1a11a359, 0xc7877adc, + 0xe0f7afe9, 0x3d61766c, 0x80ab1aa2, 0x5d3dc327, 0x204ec57f, + 0xfdd81cfa, 0x40127034, 0x9d84a9b1, 0xa06a2517, 0x7dfcfc92, + 0xc036905c, 0x1da049d9, 0x60d34f81, 0xbd459604, 0x008ffaca, + 0xdd19234f, 0xfa69f67a, 0x27ff2fff, 0x9a354331, 0x47a39ab4, + 0x3ad09cec, 0xe7464569, 0x5a8c29a7, 0x871af022, 0x146d83cd, + 0xc9fb5a48, 0x74313686, 0xa9a7ef03, 0xd4d4e95b, 0x094230de, + 0xb4885c10, 0x691e8595, 0x4e6e50a0, 0x93f88925, 0x2e32e5eb, + 0xf3a43c6e, 0x8ed73a36, 0x5341e3b3, 0xee8b8f7d, 0x331d56f8, + 0x13146ee2, 0xce82b767, 0x7348dba9, 0xaede022c, 0xd3ad0474, + 0x0e3bddf1, 0xb3f1b13f, 0x6e6768ba, 0x4917bd8f, 0x9481640a, + 0x294b08c4, 0xf4ddd141, 0x89aed719, 0x54380e9c, 0xe9f26252, + 0x3464bbd7, 0xa713c838, 0x7a8511bd, 0xc74f7d73, 0x1ad9a4f6, + 0x67aaa2ae, 0xba3c7b2b, 0x07f617e5, 0xda60ce60, 0xfd101b55, + 0x2086c2d0, 0x9d4cae1e, 0x40da779b, 0x3da971c3, 0xe03fa846, + 0x5df5c488, 0x80631d0d, 0x1de7b4bc, 0xc0716d39, 0x7dbb01f7, + 0xa02dd872, 0xdd5ede2a, 0x00c807af, 0xbd026b61, 0x6094b2e4, + 0x47e467d1, 0x9a72be54, 0x27b8d29a, 0xfa2e0b1f, 0x875d0d47, + 0x5acbd4c2, 0xe701b80c, 0x3a976189, 0xa9e01266, 0x7476cbe3, + 0xc9bca72d, 0x142a7ea8, 0x695978f0, 0xb4cfa175, 0x0905cdbb, + 0xd493143e, 0xf3e3c10b, 0x2e75188e, 0x93bf7440, 0x4e29adc5, + 0x335aab9d, 0xeecc7218, 0x53061ed6, 0x8e90c753, 0xae99ff49, + 0x730f26cc, 0xcec54a02, 0x13539387, 0x6e2095df, 0xb3b64c5a, + 0x0e7c2094, 0xd3eaf911, 0xf49a2c24, 0x290cf5a1, 0x94c6996f, + 0x495040ea, 0x342346b2, 0xe9b59f37, 0x547ff3f9, 0x89e92a7c, + 0x1a9e5993, 0xc7088016, 0x7ac2ecd8, 0xa754355d, 0xda273305, + 0x07b1ea80, 0xba7b864e, 0x67ed5fcb, 0x409d8afe, 0x9d0b537b, + 0x20c13fb5, 0xfd57e630, 0x8024e068, 0x5db239ed, 0xe0785523, + 0x3dee8ca6}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0x85d996dd, 0x4bb55c60, 0xce6ccabd, 0x966ab9c0, + 0x13b32f1d, 0xdddfe5a0, 0x5806737d, 0x6dd3035a, 0xe80a9587, + 0x26665f3a, 0xa3bfc9e7, 0xfbb9ba9a, 0x7e602c47, 0xb00ce6fa, + 0x35d57027, 0xdaa607b4, 0x5f7f9169, 0x91135bd4, 0x14cacd09, + 0x4cccbe74, 0xc91528a9, 0x0779e214, 0x82a074c9, 0xb77504ee, + 0x32ac9233, 0xfcc0588e, 0x7919ce53, 0x211fbd2e, 0xa4c62bf3, + 0x6aaae14e, 0xef737793, 0xf54b7eb3, 0x7092e86e, 0xbefe22d3, + 0x3b27b40e, 0x6321c773, 0xe6f851ae, 0x28949b13, 0xad4d0dce, + 0x98987de9, 0x1d41eb34, 0xd32d2189, 0x56f4b754, 0x0ef2c429, + 0x8b2b52f4, 0x45479849, 0xc09e0e94, 0x2fed7907, 0xaa34efda, + 0x64582567, 0xe181b3ba, 0xb987c0c7, 0x3c5e561a, 0xf2329ca7, + 0x77eb0a7a, 0x423e7a5d, 0xc7e7ec80, 0x098b263d, 0x8c52b0e0, + 0xd454c39d, 0x518d5540, 0x9fe19ffd, 0x1a380920, 0xab918dbd, + 0x2e481b60, 0xe024d1dd, 0x65fd4700, 0x3dfb347d, 0xb822a2a0, + 0x764e681d, 0xf397fec0, 0xc6428ee7, 0x439b183a, 0x8df7d287, + 0x082e445a, 0x50283727, 0xd5f1a1fa, 0x1b9d6b47, 0x9e44fd9a, + 0x71378a09, 0xf4ee1cd4, 0x3a82d669, 0xbf5b40b4, 0xe75d33c9, + 0x6284a514, 0xace86fa9, 0x2931f974, 0x1ce48953, 0x993d1f8e, + 0x5751d533, 0xd28843ee, 0x8a8e3093, 0x0f57a64e, 0xc13b6cf3, + 0x44e2fa2e, 0x5edaf30e, 0xdb0365d3, 0x156faf6e, 0x90b639b3, + 0xc8b04ace, 0x4d69dc13, 0x830516ae, 0x06dc8073, 0x3309f054, + 0xb6d06689, 0x78bcac34, 0xfd653ae9, 0xa5634994, 0x20badf49, + 0xeed615f4, 0x6b0f8329, 0x847cf4ba, 0x01a56267, 0xcfc9a8da, + 0x4a103e07, 0x12164d7a, 0x97cfdba7, 0x59a3111a, 0xdc7a87c7, + 0xe9aff7e0, 0x6c76613d, 0xa21aab80, 0x27c33d5d, 0x7fc54e20, + 0xfa1cd8fd, 0x34701240, 0xb1a9849d, 0x17256aa0, 0x92fcfc7d, + 0x5c9036c0, 0xd949a01d, 0x814fd360, 0x049645bd, 0xcafa8f00, + 0x4f2319dd, 0x7af669fa, 0xff2fff27, 0x3143359a, 0xb49aa347, + 0xec9cd03a, 0x694546e7, 0xa7298c5a, 0x22f01a87, 0xcd836d14, + 0x485afbc9, 0x86363174, 0x03efa7a9, 0x5be9d4d4, 0xde304209, + 0x105c88b4, 0x95851e69, 0xa0506e4e, 0x2589f893, 0xebe5322e, + 0x6e3ca4f3, 0x363ad78e, 0xb3e34153, 0x7d8f8bee, 0xf8561d33, + 0xe26e1413, 0x67b782ce, 0xa9db4873, 0x2c02deae, 0x7404add3, + 0xf1dd3b0e, 0x3fb1f1b3, 0xba68676e, 0x8fbd1749, 0x0a648194, + 0xc4084b29, 0x41d1ddf4, 0x19d7ae89, 0x9c0e3854, 0x5262f2e9, + 0xd7bb6434, 0x38c813a7, 0xbd11857a, 0x737d4fc7, 0xf6a4d91a, + 0xaea2aa67, 0x2b7b3cba, 0xe517f607, 0x60ce60da, 0x551b10fd, + 0xd0c28620, 0x1eae4c9d, 0x9b77da40, 0xc371a93d, 0x46a83fe0, + 0x88c4f55d, 0x0d1d6380, 0xbcb4e71d, 0x396d71c0, 0xf701bb7d, + 0x72d82da0, 0x2ade5edd, 0xaf07c800, 0x616b02bd, 0xe4b29460, + 0xd167e447, 0x54be729a, 0x9ad2b827, 0x1f0b2efa, 0x470d5d87, + 0xc2d4cb5a, 0x0cb801e7, 0x8961973a, 0x6612e0a9, 0xe3cb7674, + 0x2da7bcc9, 0xa87e2a14, 0xf0785969, 0x75a1cfb4, 0xbbcd0509, + 0x3e1493d4, 0x0bc1e3f3, 0x8e18752e, 0x4074bf93, 0xc5ad294e, + 0x9dab5a33, 0x1872ccee, 0xd61e0653, 0x53c7908e, 0x49ff99ae, + 0xcc260f73, 0x024ac5ce, 0x87935313, 0xdf95206e, 0x5a4cb6b3, + 0x94207c0e, 0x11f9ead3, 0x242c9af4, 0xa1f50c29, 0x6f99c694, + 0xea405049, 0xb2462334, 0x379fb5e9, 0xf9f37f54, 0x7c2ae989, + 0x93599e1a, 0x168008c7, 0xd8ecc27a, 0x5d3554a7, 0x053327da, + 0x80eab107, 0x4e867bba, 0xcb5fed67, 0xfe8a9d40, 0x7b530b9d, + 0xb53fc120, 0x30e657fd, 0x68e02480, 0xed39b25d, 0x235578e0, + 0xa68cee3d}, + {0x00000000, 0x76e10f9d, 0xadc46ee1, 0xdb25617c, 0x1b8fac19, + 0x6d6ea384, 0xb64bc2f8, 0xc0aacd65, 0x361e5933, 0x40ff56ae, + 0x9bda37d2, 0xed3b384f, 0x2d91f52a, 0x5b70fab7, 0x80559bcb, + 0xf6b49456, 0x6c3cb266, 0x1addbdfb, 0xc1f8dc87, 0xb719d31a, + 0x77b31e7f, 0x015211e2, 0xda77709e, 0xac967f03, 0x5a22eb55, + 0x2cc3e4c8, 0xf7e685b4, 0x81078a29, 0x41ad474c, 0x374c48d1, + 0xec6929ad, 0x9a882630, 0xd87864cd, 0xae996b50, 0x75bc0a2c, + 0x035d05b1, 0xc3f7c8d4, 0xb516c749, 0x6e33a635, 0x18d2a9a8, + 0xee663dfe, 0x98873263, 0x43a2531f, 0x35435c82, 0xf5e991e7, + 0x83089e7a, 0x582dff06, 0x2eccf09b, 0xb444d6ab, 0xc2a5d936, + 0x1980b84a, 0x6f61b7d7, 0xafcb7ab2, 0xd92a752f, 0x020f1453, + 0x74ee1bce, 0x825a8f98, 0xf4bb8005, 0x2f9ee179, 0x597feee4, + 0x99d52381, 0xef342c1c, 0x34114d60, 0x42f042fd, 0xf1f7b941, + 0x8716b6dc, 0x5c33d7a0, 0x2ad2d83d, 0xea781558, 0x9c991ac5, + 0x47bc7bb9, 0x315d7424, 0xc7e9e072, 0xb108efef, 0x6a2d8e93, + 0x1ccc810e, 0xdc664c6b, 0xaa8743f6, 0x71a2228a, 0x07432d17, + 0x9dcb0b27, 0xeb2a04ba, 0x300f65c6, 0x46ee6a5b, 0x8644a73e, + 0xf0a5a8a3, 0x2b80c9df, 0x5d61c642, 0xabd55214, 0xdd345d89, + 0x06113cf5, 0x70f03368, 0xb05afe0d, 0xc6bbf190, 0x1d9e90ec, + 0x6b7f9f71, 0x298fdd8c, 0x5f6ed211, 0x844bb36d, 0xf2aabcf0, + 0x32007195, 0x44e17e08, 0x9fc41f74, 0xe92510e9, 0x1f9184bf, + 0x69708b22, 0xb255ea5e, 0xc4b4e5c3, 0x041e28a6, 0x72ff273b, + 0xa9da4647, 0xdf3b49da, 0x45b36fea, 0x33526077, 0xe877010b, + 0x9e960e96, 0x5e3cc3f3, 0x28ddcc6e, 0xf3f8ad12, 0x8519a28f, + 0x73ad36d9, 0x054c3944, 0xde695838, 0xa88857a5, 0x68229ac0, + 0x1ec3955d, 0xc5e6f421, 0xb307fbbc, 0xe2ef7383, 0x940e7c1e, + 0x4f2b1d62, 0x39ca12ff, 0xf960df9a, 0x8f81d007, 0x54a4b17b, + 0x2245bee6, 0xd4f12ab0, 0xa210252d, 0x79354451, 0x0fd44bcc, + 0xcf7e86a9, 0xb99f8934, 0x62bae848, 0x145be7d5, 0x8ed3c1e5, + 0xf832ce78, 0x2317af04, 0x55f6a099, 0x955c6dfc, 0xe3bd6261, + 0x3898031d, 0x4e790c80, 0xb8cd98d6, 0xce2c974b, 0x1509f637, + 0x63e8f9aa, 0xa34234cf, 0xd5a33b52, 0x0e865a2e, 0x786755b3, + 0x3a97174e, 0x4c7618d3, 0x975379af, 0xe1b27632, 0x2118bb57, + 0x57f9b4ca, 0x8cdcd5b6, 0xfa3dda2b, 0x0c894e7d, 0x7a6841e0, + 0xa14d209c, 0xd7ac2f01, 0x1706e264, 0x61e7edf9, 0xbac28c85, + 0xcc238318, 0x56aba528, 0x204aaab5, 0xfb6fcbc9, 0x8d8ec454, + 0x4d240931, 0x3bc506ac, 0xe0e067d0, 0x9601684d, 0x60b5fc1b, + 0x1654f386, 0xcd7192fa, 0xbb909d67, 0x7b3a5002, 0x0ddb5f9f, + 0xd6fe3ee3, 0xa01f317e, 0x1318cac2, 0x65f9c55f, 0xbedca423, + 0xc83dabbe, 0x089766db, 0x7e766946, 0xa553083a, 0xd3b207a7, + 0x250693f1, 0x53e79c6c, 0x88c2fd10, 0xfe23f28d, 0x3e893fe8, + 0x48683075, 0x934d5109, 0xe5ac5e94, 0x7f2478a4, 0x09c57739, + 0xd2e01645, 0xa40119d8, 0x64abd4bd, 0x124adb20, 0xc96fba5c, + 0xbf8eb5c1, 0x493a2197, 0x3fdb2e0a, 0xe4fe4f76, 0x921f40eb, + 0x52b58d8e, 0x24548213, 0xff71e36f, 0x8990ecf2, 0xcb60ae0f, + 0xbd81a192, 0x66a4c0ee, 0x1045cf73, 0xd0ef0216, 0xa60e0d8b, + 0x7d2b6cf7, 0x0bca636a, 0xfd7ef73c, 0x8b9ff8a1, 0x50ba99dd, + 0x265b9640, 0xe6f15b25, 0x901054b8, 0x4b3535c4, 0x3dd43a59, + 0xa75c1c69, 0xd1bd13f4, 0x0a987288, 0x7c797d15, 0xbcd3b070, + 0xca32bfed, 0x1117de91, 0x67f6d10c, 0x9142455a, 0xe7a34ac7, + 0x3c862bbb, 0x4a672426, 0x8acde943, 0xfc2ce6de, 0x270987a2, + 0x51e8883f}, + {0x00000000, 0xe8dbfbb9, 0x91b186a8, 0x796a7d11, 0x63657c8a, + 0x8bbe8733, 0xf2d4fa22, 0x1a0f019b, 0x87cc89cf, 0x6f177276, + 0x167d0f67, 0xfea6f4de, 0xe4a9f545, 0x0c720efc, 0x751873ed, + 0x9dc38854, 0x4f9f6244, 0xa74499fd, 0xde2ee4ec, 0x36f51f55, + 0x2cfa1ece, 0xc421e577, 0xbd4b9866, 0x559063df, 0xc853eb8b, + 0x20881032, 0x59e26d23, 0xb139969a, 0xab369701, 0x43ed6cb8, + 0x3a8711a9, 0xd25cea10, 0x9e3ec588, 0x76e53e31, 0x0f8f4320, + 0xe754b899, 0xfd5bb902, 0x158042bb, 0x6cea3faa, 0x8431c413, + 0x19f24c47, 0xf129b7fe, 0x8843caef, 0x60983156, 0x7a9730cd, + 0x924ccb74, 0xeb26b665, 0x03fd4ddc, 0xd1a1a7cc, 0x397a5c75, + 0x40102164, 0xa8cbdadd, 0xb2c4db46, 0x5a1f20ff, 0x23755dee, + 0xcbaea657, 0x566d2e03, 0xbeb6d5ba, 0xc7dca8ab, 0x2f075312, + 0x35085289, 0xddd3a930, 0xa4b9d421, 0x4c622f98, 0x7d7bfbca, + 0x95a00073, 0xecca7d62, 0x041186db, 0x1e1e8740, 0xf6c57cf9, + 0x8faf01e8, 0x6774fa51, 0xfab77205, 0x126c89bc, 0x6b06f4ad, + 0x83dd0f14, 0x99d20e8f, 0x7109f536, 0x08638827, 0xe0b8739e, + 0x32e4998e, 0xda3f6237, 0xa3551f26, 0x4b8ee49f, 0x5181e504, + 0xb95a1ebd, 0xc03063ac, 0x28eb9815, 0xb5281041, 0x5df3ebf8, + 0x249996e9, 0xcc426d50, 0xd64d6ccb, 0x3e969772, 0x47fcea63, + 0xaf2711da, 0xe3453e42, 0x0b9ec5fb, 0x72f4b8ea, 0x9a2f4353, + 0x802042c8, 0x68fbb971, 0x1191c460, 0xf94a3fd9, 0x6489b78d, + 0x8c524c34, 0xf5383125, 0x1de3ca9c, 0x07eccb07, 0xef3730be, + 0x965d4daf, 0x7e86b616, 0xacda5c06, 0x4401a7bf, 0x3d6bdaae, + 0xd5b02117, 0xcfbf208c, 0x2764db35, 0x5e0ea624, 0xb6d55d9d, + 0x2b16d5c9, 0xc3cd2e70, 0xbaa75361, 0x527ca8d8, 0x4873a943, + 0xa0a852fa, 0xd9c22feb, 0x3119d452, 0xbbf0874e, 0x532b7cf7, + 0x2a4101e6, 0xc29afa5f, 0xd895fbc4, 0x304e007d, 0x49247d6c, + 0xa1ff86d5, 0x3c3c0e81, 0xd4e7f538, 0xad8d8829, 0x45567390, + 0x5f59720b, 0xb78289b2, 0xcee8f4a3, 0x26330f1a, 0xf46fe50a, + 0x1cb41eb3, 0x65de63a2, 0x8d05981b, 0x970a9980, 0x7fd16239, + 0x06bb1f28, 0xee60e491, 0x73a36cc5, 0x9b78977c, 0xe212ea6d, + 0x0ac911d4, 0x10c6104f, 0xf81debf6, 0x817796e7, 0x69ac6d5e, + 0x25ce42c6, 0xcd15b97f, 0xb47fc46e, 0x5ca43fd7, 0x46ab3e4c, + 0xae70c5f5, 0xd71ab8e4, 0x3fc1435d, 0xa202cb09, 0x4ad930b0, + 0x33b34da1, 0xdb68b618, 0xc167b783, 0x29bc4c3a, 0x50d6312b, + 0xb80dca92, 0x6a512082, 0x828adb3b, 0xfbe0a62a, 0x133b5d93, + 0x09345c08, 0xe1efa7b1, 0x9885daa0, 0x705e2119, 0xed9da94d, + 0x054652f4, 0x7c2c2fe5, 0x94f7d45c, 0x8ef8d5c7, 0x66232e7e, + 0x1f49536f, 0xf792a8d6, 0xc68b7c84, 0x2e50873d, 0x573afa2c, + 0xbfe10195, 0xa5ee000e, 0x4d35fbb7, 0x345f86a6, 0xdc847d1f, + 0x4147f54b, 0xa99c0ef2, 0xd0f673e3, 0x382d885a, 0x222289c1, + 0xcaf97278, 0xb3930f69, 0x5b48f4d0, 0x89141ec0, 0x61cfe579, + 0x18a59868, 0xf07e63d1, 0xea71624a, 0x02aa99f3, 0x7bc0e4e2, + 0x931b1f5b, 0x0ed8970f, 0xe6036cb6, 0x9f6911a7, 0x77b2ea1e, + 0x6dbdeb85, 0x8566103c, 0xfc0c6d2d, 0x14d79694, 0x58b5b90c, + 0xb06e42b5, 0xc9043fa4, 0x21dfc41d, 0x3bd0c586, 0xd30b3e3f, + 0xaa61432e, 0x42bab897, 0xdf7930c3, 0x37a2cb7a, 0x4ec8b66b, + 0xa6134dd2, 0xbc1c4c49, 0x54c7b7f0, 0x2dadcae1, 0xc5763158, + 0x172adb48, 0xfff120f1, 0x869b5de0, 0x6e40a659, 0x744fa7c2, + 0x9c945c7b, 0xe5fe216a, 0x0d25dad3, 0x90e65287, 0x783da93e, + 0x0157d42f, 0xe98c2f96, 0xf3832e0d, 0x1b58d5b4, 0x6232a8a5, + 0x8ae9531c}, + {0x00000000, 0x919168ae, 0x6325a087, 0xf2b4c829, 0x874c31d4, + 0x16dd597a, 0xe4699153, 0x75f8f9fd, 0x4f9f1373, 0xde0e7bdd, + 0x2cbab3f4, 0xbd2bdb5a, 0xc8d322a7, 0x59424a09, 0xabf68220, + 0x3a67ea8e, 0x9e3e27e6, 0x0faf4f48, 0xfd1b8761, 0x6c8aefcf, + 0x19721632, 0x88e37e9c, 0x7a57b6b5, 0xebc6de1b, 0xd1a13495, + 0x40305c3b, 0xb2849412, 0x2315fcbc, 0x56ed0541, 0xc77c6def, + 0x35c8a5c6, 0xa459cd68, 0x7d7b3f17, 0xecea57b9, 0x1e5e9f90, + 0x8fcff73e, 0xfa370ec3, 0x6ba6666d, 0x9912ae44, 0x0883c6ea, + 0x32e42c64, 0xa37544ca, 0x51c18ce3, 0xc050e44d, 0xb5a81db0, + 0x2439751e, 0xd68dbd37, 0x471cd599, 0xe34518f1, 0x72d4705f, + 0x8060b876, 0x11f1d0d8, 0x64092925, 0xf598418b, 0x072c89a2, + 0x96bde10c, 0xacda0b82, 0x3d4b632c, 0xcfffab05, 0x5e6ec3ab, + 0x2b963a56, 0xba0752f8, 0x48b39ad1, 0xd922f27f, 0xfaf67e2e, + 0x6b671680, 0x99d3dea9, 0x0842b607, 0x7dba4ffa, 0xec2b2754, + 0x1e9fef7d, 0x8f0e87d3, 0xb5696d5d, 0x24f805f3, 0xd64ccdda, + 0x47dda574, 0x32255c89, 0xa3b43427, 0x5100fc0e, 0xc09194a0, + 0x64c859c8, 0xf5593166, 0x07edf94f, 0x967c91e1, 0xe384681c, + 0x721500b2, 0x80a1c89b, 0x1130a035, 0x2b574abb, 0xbac62215, + 0x4872ea3c, 0xd9e38292, 0xac1b7b6f, 0x3d8a13c1, 0xcf3edbe8, + 0x5eafb346, 0x878d4139, 0x161c2997, 0xe4a8e1be, 0x75398910, + 0x00c170ed, 0x91501843, 0x63e4d06a, 0xf275b8c4, 0xc812524a, + 0x59833ae4, 0xab37f2cd, 0x3aa69a63, 0x4f5e639e, 0xdecf0b30, + 0x2c7bc319, 0xbdeaabb7, 0x19b366df, 0x88220e71, 0x7a96c658, + 0xeb07aef6, 0x9eff570b, 0x0f6e3fa5, 0xfddaf78c, 0x6c4b9f22, + 0x562c75ac, 0xc7bd1d02, 0x3509d52b, 0xa498bd85, 0xd1604478, + 0x40f12cd6, 0xb245e4ff, 0x23d48c51, 0xf4edfd5c, 0x657c95f2, + 0x97c85ddb, 0x06593575, 0x73a1cc88, 0xe230a426, 0x10846c0f, + 0x811504a1, 0xbb72ee2f, 0x2ae38681, 0xd8574ea8, 0x49c62606, + 0x3c3edffb, 0xadafb755, 0x5f1b7f7c, 0xce8a17d2, 0x6ad3daba, + 0xfb42b214, 0x09f67a3d, 0x98671293, 0xed9feb6e, 0x7c0e83c0, + 0x8eba4be9, 0x1f2b2347, 0x254cc9c9, 0xb4dda167, 0x4669694e, + 0xd7f801e0, 0xa200f81d, 0x339190b3, 0xc125589a, 0x50b43034, + 0x8996c24b, 0x1807aae5, 0xeab362cc, 0x7b220a62, 0x0edaf39f, + 0x9f4b9b31, 0x6dff5318, 0xfc6e3bb6, 0xc609d138, 0x5798b996, + 0xa52c71bf, 0x34bd1911, 0x4145e0ec, 0xd0d48842, 0x2260406b, + 0xb3f128c5, 0x17a8e5ad, 0x86398d03, 0x748d452a, 0xe51c2d84, + 0x90e4d479, 0x0175bcd7, 0xf3c174fe, 0x62501c50, 0x5837f6de, + 0xc9a69e70, 0x3b125659, 0xaa833ef7, 0xdf7bc70a, 0x4eeaafa4, + 0xbc5e678d, 0x2dcf0f23, 0x0e1b8372, 0x9f8aebdc, 0x6d3e23f5, + 0xfcaf4b5b, 0x8957b2a6, 0x18c6da08, 0xea721221, 0x7be37a8f, + 0x41849001, 0xd015f8af, 0x22a13086, 0xb3305828, 0xc6c8a1d5, + 0x5759c97b, 0xa5ed0152, 0x347c69fc, 0x9025a494, 0x01b4cc3a, + 0xf3000413, 0x62916cbd, 0x17699540, 0x86f8fdee, 0x744c35c7, + 0xe5dd5d69, 0xdfbab7e7, 0x4e2bdf49, 0xbc9f1760, 0x2d0e7fce, + 0x58f68633, 0xc967ee9d, 0x3bd326b4, 0xaa424e1a, 0x7360bc65, + 0xe2f1d4cb, 0x10451ce2, 0x81d4744c, 0xf42c8db1, 0x65bde51f, + 0x97092d36, 0x06984598, 0x3cffaf16, 0xad6ec7b8, 0x5fda0f91, + 0xce4b673f, 0xbbb39ec2, 0x2a22f66c, 0xd8963e45, 0x490756eb, + 0xed5e9b83, 0x7ccff32d, 0x8e7b3b04, 0x1fea53aa, 0x6a12aa57, + 0xfb83c2f9, 0x09370ad0, 0x98a6627e, 0xa2c188f0, 0x3350e05e, + 0xc1e42877, 0x507540d9, 0x258db924, 0xb41cd18a, 0x46a819a3, + 0xd739710d}}; + +#endif + +#endif + +#if N == 5 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0xaf449247, 0x85f822cf, 0x2abcb088, 0xd08143df, + 0x7fc5d198, 0x55796110, 0xfa3df357, 0x7a7381ff, 0xd53713b8, + 0xff8ba330, 0x50cf3177, 0xaaf2c220, 0x05b65067, 0x2f0ae0ef, + 0x804e72a8, 0xf4e703fe, 0x5ba391b9, 0x711f2131, 0xde5bb376, + 0x24664021, 0x8b22d266, 0xa19e62ee, 0x0edaf0a9, 0x8e948201, + 0x21d01046, 0x0b6ca0ce, 0xa4283289, 0x5e15c1de, 0xf1515399, + 0xdbede311, 0x74a97156, 0x32bf01bd, 0x9dfb93fa, 0xb7472372, + 0x1803b135, 0xe23e4262, 0x4d7ad025, 0x67c660ad, 0xc882f2ea, + 0x48cc8042, 0xe7881205, 0xcd34a28d, 0x627030ca, 0x984dc39d, + 0x370951da, 0x1db5e152, 0xb2f17315, 0xc6580243, 0x691c9004, + 0x43a0208c, 0xece4b2cb, 0x16d9419c, 0xb99dd3db, 0x93216353, + 0x3c65f114, 0xbc2b83bc, 0x136f11fb, 0x39d3a173, 0x96973334, + 0x6caac063, 0xc3ee5224, 0xe952e2ac, 0x461670eb, 0x657e037a, + 0xca3a913d, 0xe08621b5, 0x4fc2b3f2, 0xb5ff40a5, 0x1abbd2e2, + 0x3007626a, 0x9f43f02d, 0x1f0d8285, 0xb04910c2, 0x9af5a04a, + 0x35b1320d, 0xcf8cc15a, 0x60c8531d, 0x4a74e395, 0xe53071d2, + 0x91990084, 0x3edd92c3, 0x1461224b, 0xbb25b00c, 0x4118435b, + 0xee5cd11c, 0xc4e06194, 0x6ba4f3d3, 0xebea817b, 0x44ae133c, + 0x6e12a3b4, 0xc15631f3, 0x3b6bc2a4, 0x942f50e3, 0xbe93e06b, + 0x11d7722c, 0x57c102c7, 0xf8859080, 0xd2392008, 0x7d7db24f, + 0x87404118, 0x2804d35f, 0x02b863d7, 0xadfcf190, 0x2db28338, + 0x82f6117f, 0xa84aa1f7, 0x070e33b0, 0xfd33c0e7, 0x527752a0, + 0x78cbe228, 0xd78f706f, 0xa3260139, 0x0c62937e, 0x26de23f6, + 0x899ab1b1, 0x73a742e6, 0xdce3d0a1, 0xf65f6029, 0x591bf26e, + 0xd95580c6, 0x76111281, 0x5cada209, 0xf3e9304e, 0x09d4c319, + 0xa690515e, 0x8c2ce1d6, 0x23687391, 0xcafc06f4, 0x65b894b3, + 0x4f04243b, 0xe040b67c, 0x1a7d452b, 0xb539d76c, 0x9f8567e4, + 0x30c1f5a3, 0xb08f870b, 0x1fcb154c, 0x3577a5c4, 0x9a333783, + 0x600ec4d4, 0xcf4a5693, 0xe5f6e61b, 0x4ab2745c, 0x3e1b050a, + 0x915f974d, 0xbbe327c5, 0x14a7b582, 0xee9a46d5, 0x41ded492, + 0x6b62641a, 0xc426f65d, 0x446884f5, 0xeb2c16b2, 0xc190a63a, + 0x6ed4347d, 0x94e9c72a, 0x3bad556d, 0x1111e5e5, 0xbe5577a2, + 0xf8430749, 0x5707950e, 0x7dbb2586, 0xd2ffb7c1, 0x28c24496, + 0x8786d6d1, 0xad3a6659, 0x027ef41e, 0x823086b6, 0x2d7414f1, + 0x07c8a479, 0xa88c363e, 0x52b1c569, 0xfdf5572e, 0xd749e7a6, + 0x780d75e1, 0x0ca404b7, 0xa3e096f0, 0x895c2678, 0x2618b43f, + 0xdc254768, 0x7361d52f, 0x59dd65a7, 0xf699f7e0, 0x76d78548, + 0xd993170f, 0xf32fa787, 0x5c6b35c0, 0xa656c697, 0x091254d0, + 0x23aee458, 0x8cea761f, 0xaf82058e, 0x00c697c9, 0x2a7a2741, + 0x853eb506, 0x7f034651, 0xd047d416, 0xfafb649e, 0x55bff6d9, + 0xd5f18471, 0x7ab51636, 0x5009a6be, 0xff4d34f9, 0x0570c7ae, + 0xaa3455e9, 0x8088e561, 0x2fcc7726, 0x5b650670, 0xf4219437, + 0xde9d24bf, 0x71d9b6f8, 0x8be445af, 0x24a0d7e8, 0x0e1c6760, + 0xa158f527, 0x2116878f, 0x8e5215c8, 0xa4eea540, 0x0baa3707, + 0xf197c450, 0x5ed35617, 0x746fe69f, 0xdb2b74d8, 0x9d3d0433, + 0x32799674, 0x18c526fc, 0xb781b4bb, 0x4dbc47ec, 0xe2f8d5ab, + 0xc8446523, 0x6700f764, 0xe74e85cc, 0x480a178b, 0x62b6a703, + 0xcdf23544, 0x37cfc613, 0x988b5454, 0xb237e4dc, 0x1d73769b, + 0x69da07cd, 0xc69e958a, 0xec222502, 0x4366b745, 0xb95b4412, + 0x161fd655, 0x3ca366dd, 0x93e7f49a, 0x13a98632, 0xbced1475, + 0x9651a4fd, 0x391536ba, 0xc328c5ed, 0x6c6c57aa, 0x46d0e722, + 0xe9947565}, + {0x00000000, 0x4e890ba9, 0x9d121752, 0xd39b1cfb, 0xe15528e5, + 0xafdc234c, 0x7c473fb7, 0x32ce341e, 0x19db578b, 0x57525c22, + 0x84c940d9, 0xca404b70, 0xf88e7f6e, 0xb60774c7, 0x659c683c, + 0x2b156395, 0x33b6af16, 0x7d3fa4bf, 0xaea4b844, 0xe02db3ed, + 0xd2e387f3, 0x9c6a8c5a, 0x4ff190a1, 0x01789b08, 0x2a6df89d, + 0x64e4f334, 0xb77fefcf, 0xf9f6e466, 0xcb38d078, 0x85b1dbd1, + 0x562ac72a, 0x18a3cc83, 0x676d5e2c, 0x29e45585, 0xfa7f497e, + 0xb4f642d7, 0x863876c9, 0xc8b17d60, 0x1b2a619b, 0x55a36a32, + 0x7eb609a7, 0x303f020e, 0xe3a41ef5, 0xad2d155c, 0x9fe32142, + 0xd16a2aeb, 0x02f13610, 0x4c783db9, 0x54dbf13a, 0x1a52fa93, + 0xc9c9e668, 0x8740edc1, 0xb58ed9df, 0xfb07d276, 0x289cce8d, + 0x6615c524, 0x4d00a6b1, 0x0389ad18, 0xd012b1e3, 0x9e9bba4a, + 0xac558e54, 0xe2dc85fd, 0x31479906, 0x7fce92af, 0xcedabc58, + 0x8053b7f1, 0x53c8ab0a, 0x1d41a0a3, 0x2f8f94bd, 0x61069f14, + 0xb29d83ef, 0xfc148846, 0xd701ebd3, 0x9988e07a, 0x4a13fc81, + 0x049af728, 0x3654c336, 0x78ddc89f, 0xab46d464, 0xe5cfdfcd, + 0xfd6c134e, 0xb3e518e7, 0x607e041c, 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0x6345746a, 0x9ccac3e8, + 0xb84892de, 0xd5ce6184, 0xf14c30b2, 0xf1a008c1, 0xd52259f7, + 0xb8a4aaad, 0x9c26fb9b, 0x63a94c19, 0x472b1d2f, 0x2aadee75, + 0x0e2fbf43}, + {0x00000000, 0x36f290f3, 0x6de521e6, 0x5b17b115, 0xdbca43cc, + 0xed38d33f, 0xb62f622a, 0x80ddf2d9, 0x6ce581d9, 0x5a17112a, + 0x0100a03f, 0x37f230cc, 0xb72fc215, 0x81dd52e6, 0xdacae3f3, + 0xec387300, 0xd9cb03b2, 0xef399341, 0xb42e2254, 0x82dcb2a7, + 0x0201407e, 0x34f3d08d, 0x6fe46198, 0x5916f16b, 0xb52e826b, + 0x83dc1298, 0xd8cba38d, 0xee39337e, 0x6ee4c1a7, 0x58165154, + 0x0301e041, 0x35f370b2, 0x68e70125, 0x5e1591d6, 0x050220c3, + 0x33f0b030, 0xb32d42e9, 0x85dfd21a, 0xdec8630f, 0xe83af3fc, + 0x040280fc, 0x32f0100f, 0x69e7a11a, 0x5f1531e9, 0xdfc8c330, + 0xe93a53c3, 0xb22de2d6, 0x84df7225, 0xb12c0297, 0x87de9264, + 0xdcc92371, 0xea3bb382, 0x6ae6415b, 0x5c14d1a8, 0x070360bd, + 0x31f1f04e, 0xddc9834e, 0xeb3b13bd, 0xb02ca2a8, 0x86de325b, + 0x0603c082, 0x30f15071, 0x6be6e164, 0x5d147197, 0xd1ce024a, + 0xe73c92b9, 0xbc2b23ac, 0x8ad9b35f, 0x0a044186, 0x3cf6d175, + 0x67e16060, 0x5113f093, 0xbd2b8393, 0x8bd91360, 0xd0cea275, + 0xe63c3286, 0x66e1c05f, 0x501350ac, 0x0b04e1b9, 0x3df6714a, + 0x080501f8, 0x3ef7910b, 0x65e0201e, 0x5312b0ed, 0xd3cf4234, + 0xe53dd2c7, 0xbe2a63d2, 0x88d8f321, 0x64e08021, 0x521210d2, + 0x0905a1c7, 0x3ff73134, 0xbf2ac3ed, 0x89d8531e, 0xd2cfe20b, + 0xe43d72f8, 0xb929036f, 0x8fdb939c, 0xd4cc2289, 0xe23eb27a, + 0x62e340a3, 0x5411d050, 0x0f066145, 0x39f4f1b6, 0xd5cc82b6, + 0xe33e1245, 0xb829a350, 0x8edb33a3, 0x0e06c17a, 0x38f45189, + 0x63e3e09c, 0x5511706f, 0x60e200dd, 0x5610902e, 0x0d07213b, + 0x3bf5b1c8, 0xbb284311, 0x8ddad3e2, 0xd6cd62f7, 0xe03ff204, + 0x0c078104, 0x3af511f7, 0x61e2a0e2, 0x57103011, 0xd7cdc2c8, + 0xe13f523b, 0xba28e32e, 0x8cda73dd, 0x78ed02d5, 0x4e1f9226, + 0x15082333, 0x23fab3c0, 0xa3274119, 0x95d5d1ea, 0xcec260ff, + 0xf830f00c, 0x1408830c, 0x22fa13ff, 0x79eda2ea, 0x4f1f3219, + 0xcfc2c0c0, 0xf9305033, 0xa227e126, 0x94d571d5, 0xa1260167, + 0x97d49194, 0xccc32081, 0xfa31b072, 0x7aec42ab, 0x4c1ed258, + 0x1709634d, 0x21fbf3be, 0xcdc380be, 0xfb31104d, 0xa026a158, + 0x96d431ab, 0x1609c372, 0x20fb5381, 0x7bece294, 0x4d1e7267, + 0x100a03f0, 0x26f89303, 0x7def2216, 0x4b1db2e5, 0xcbc0403c, + 0xfd32d0cf, 0xa62561da, 0x90d7f129, 0x7cef8229, 0x4a1d12da, + 0x110aa3cf, 0x27f8333c, 0xa725c1e5, 0x91d75116, 0xcac0e003, + 0xfc3270f0, 0xc9c10042, 0xff3390b1, 0xa42421a4, 0x92d6b157, + 0x120b438e, 0x24f9d37d, 0x7fee6268, 0x491cf29b, 0xa524819b, + 0x93d61168, 0xc8c1a07d, 0xfe33308e, 0x7eeec257, 0x481c52a4, + 0x130be3b1, 0x25f97342, 0xa923009f, 0x9fd1906c, 0xc4c62179, + 0xf234b18a, 0x72e94353, 0x441bd3a0, 0x1f0c62b5, 0x29fef246, + 0xc5c68146, 0xf33411b5, 0xa823a0a0, 0x9ed13053, 0x1e0cc28a, + 0x28fe5279, 0x73e9e36c, 0x451b739f, 0x70e8032d, 0x461a93de, + 0x1d0d22cb, 0x2bffb238, 0xab2240e1, 0x9dd0d012, 0xc6c76107, + 0xf035f1f4, 0x1c0d82f4, 0x2aff1207, 0x71e8a312, 0x471a33e1, + 0xc7c7c138, 0xf13551cb, 0xaa22e0de, 0x9cd0702d, 0xc1c401ba, + 0xf7369149, 0xac21205c, 0x9ad3b0af, 0x1a0e4276, 0x2cfcd285, + 0x77eb6390, 0x4119f363, 0xad218063, 0x9bd31090, 0xc0c4a185, + 0xf6363176, 0x76ebc3af, 0x4019535c, 0x1b0ee249, 0x2dfc72ba, + 0x180f0208, 0x2efd92fb, 0x75ea23ee, 0x4318b31d, 0xc3c541c4, + 0xf537d137, 0xae206022, 0x98d2f0d1, 0x74ea83d1, 0x42181322, + 0x190fa237, 0x2ffd32c4, 0xaf20c01d, 0x99d250ee, 0xc2c5e1fb, + 0xf4377108}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0xf390f23600000000, 0xe621e56d00000000, + 0x15b1175b00000000, 0xcc43cadb00000000, 0x3fd338ed00000000, + 0x2a622fb600000000, 0xd9f2dd8000000000, 0xd981e56c00000000, + 0x2a11175a00000000, 0x3fa0000100000000, 0xcc30f23700000000, + 0x15c22fb700000000, 0xe652dd8100000000, 0xf3e3cada00000000, + 0x007338ec00000000, 0xb203cbd900000000, 0x419339ef00000000, + 0x54222eb400000000, 0xa7b2dc8200000000, 0x7e40010200000000, + 0x8dd0f33400000000, 0x9861e46f00000000, 0x6bf1165900000000, + 0x6b822eb500000000, 0x9812dc8300000000, 0x8da3cbd800000000, + 0x7e3339ee00000000, 0xa7c1e46e00000000, 0x5451165800000000, + 0x41e0010300000000, 0xb270f33500000000, 0x2501e76800000000, + 0xd691155e00000000, 0xc320020500000000, 0x30b0f03300000000, + 0xe9422db300000000, 0x1ad2df8500000000, 0x0f63c8de00000000, + 0xfcf33ae800000000, 0xfc80020400000000, 0x0f10f03200000000, + 0x1aa1e76900000000, 0xe931155f00000000, 0x30c3c8df00000000, + 0xc3533ae900000000, 0xd6e22db200000000, 0x2572df8400000000, + 0x97022cb100000000, 0x6492de8700000000, 0x7123c9dc00000000, + 0x82b33bea00000000, 0x5b41e66a00000000, 0xa8d1145c00000000, + 0xbd60030700000000, 0x4ef0f13100000000, 0x4e83c9dd00000000, + 0xbd133beb00000000, 0xa8a22cb000000000, 0x5b32de8600000000, + 0x82c0030600000000, 0x7150f13000000000, 0x64e1e66b00000000, + 0x9771145d00000000, 0x4a02ced100000000, 0xb9923ce700000000, + 0xac232bbc00000000, 0x5fb3d98a00000000, 0x8641040a00000000, + 0x75d1f63c00000000, 0x6060e16700000000, 0x93f0135100000000, + 0x93832bbd00000000, 0x6013d98b00000000, 0x75a2ced000000000, + 0x86323ce600000000, 0x5fc0e16600000000, 0xac50135000000000, + 0xb9e1040b00000000, 0x4a71f63d00000000, 0xf801050800000000, + 0x0b91f73e00000000, 0x1e20e06500000000, 0xedb0125300000000, + 0x3442cfd300000000, 0xc7d23de500000000, 0xd2632abe00000000, + 0x21f3d88800000000, 0x2180e06400000000, 0xd210125200000000, + 0xc7a1050900000000, 0x3431f73f00000000, 0xedc32abf00000000, + 0x1e53d88900000000, 0x0be2cfd200000000, 0xf8723de400000000, + 0x6f0329b900000000, 0x9c93db8f00000000, 0x8922ccd400000000, + 0x7ab23ee200000000, 0xa340e36200000000, 0x50d0115400000000, + 0x4561060f00000000, 0xb6f1f43900000000, 0xb682ccd500000000, + 0x45123ee300000000, 0x50a329b800000000, 0xa333db8e00000000, + 0x7ac1060e00000000, 0x8951f43800000000, 0x9ce0e36300000000, + 0x6f70115500000000, 0xdd00e26000000000, 0x2e90105600000000, + 0x3b21070d00000000, 0xc8b1f53b00000000, 0x114328bb00000000, + 0xe2d3da8d00000000, 0xf762cdd600000000, 0x04f23fe000000000, + 0x0481070c00000000, 0xf711f53a00000000, 0xe2a0e26100000000, + 0x1130105700000000, 0xc8c2cdd700000000, 0x3b523fe100000000, + 0x2ee328ba00000000, 0xdd73da8c00000000, 0xd502ed7800000000, + 0x26921f4e00000000, 0x3323081500000000, 0xc0b3fa2300000000, + 0x194127a300000000, 0xead1d59500000000, 0xff60c2ce00000000, + 0x0cf030f800000000, 0x0c83081400000000, 0xff13fa2200000000, + 0xeaa2ed7900000000, 0x19321f4f00000000, 0xc0c0c2cf00000000, + 0x335030f900000000, 0x26e127a200000000, 0xd571d59400000000, + 0x670126a100000000, 0x9491d49700000000, 0x8120c3cc00000000, + 0x72b031fa00000000, 0xab42ec7a00000000, 0x58d21e4c00000000, + 0x4d63091700000000, 0xbef3fb2100000000, 0xbe80c3cd00000000, + 0x4d1031fb00000000, 0x58a126a000000000, 0xab31d49600000000, + 0x72c3091600000000, 0x8153fb2000000000, 0x94e2ec7b00000000, + 0x67721e4d00000000, 0xf0030a1000000000, 0x0393f82600000000, + 0x1622ef7d00000000, 0xe5b21d4b00000000, 0x3c40c0cb00000000, + 0xcfd032fd00000000, 0xda6125a600000000, 0x29f1d79000000000, + 0x2982ef7c00000000, 0xda121d4a00000000, 0xcfa30a1100000000, + 0x3c33f82700000000, 0xe5c125a700000000, 0x1651d79100000000, + 0x03e0c0ca00000000, 0xf07032fc00000000, 0x4200c1c900000000, + 0xb19033ff00000000, 0xa42124a400000000, 0x57b1d69200000000, + 0x8e430b1200000000, 0x7dd3f92400000000, 0x6862ee7f00000000, + 0x9bf21c4900000000, 0x9b8124a500000000, 0x6811d69300000000, + 0x7da0c1c800000000, 0x8e3033fe00000000, 0x57c2ee7e00000000, + 0xa4521c4800000000, 0xb1e30b1300000000, 0x4273f92500000000, + 0x9f0023a900000000, 0x6c90d19f00000000, 0x7921c6c400000000, + 0x8ab134f200000000, 0x5343e97200000000, 0xa0d31b4400000000, + 0xb5620c1f00000000, 0x46f2fe2900000000, 0x4681c6c500000000, + 0xb51134f300000000, 0xa0a023a800000000, 0x5330d19e00000000, + 0x8ac20c1e00000000, 0x7952fe2800000000, 0x6ce3e97300000000, + 0x9f731b4500000000, 0x2d03e87000000000, 0xde931a4600000000, + 0xcb220d1d00000000, 0x38b2ff2b00000000, 0xe14022ab00000000, + 0x12d0d09d00000000, 0x0761c7c600000000, 0xf4f135f000000000, + 0xf4820d1c00000000, 0x0712ff2a00000000, 0x12a3e87100000000, + 0xe1331a4700000000, 0x38c1c7c700000000, 0xcb5135f100000000, + 0xdee022aa00000000, 0x2d70d09c00000000, 0xba01c4c100000000, + 0x499136f700000000, 0x5c2021ac00000000, 0xafb0d39a00000000, + 0x76420e1a00000000, 0x85d2fc2c00000000, 0x9063eb7700000000, + 0x63f3194100000000, 0x638021ad00000000, 0x9010d39b00000000, + 0x85a1c4c000000000, 0x763136f600000000, 0xafc3eb7600000000, + 0x5c53194000000000, 0x49e20e1b00000000, 0xba72fc2d00000000, + 0x08020f1800000000, 0xfb92fd2e00000000, 0xee23ea7500000000, + 0x1db3184300000000, 0xc441c5c300000000, 0x37d137f500000000, + 0x226020ae00000000, 0xd1f0d29800000000, 0xd183ea7400000000, + 0x2213184200000000, 0x37a20f1900000000, 0xc432fd2f00000000, + 0x1dc020af00000000, 0xee50d29900000000, 0xfbe1c5c200000000, + 0x087137f400000000}, + {0x0000000000000000, 0x3651822400000000, 0x6ca2044900000000, + 0x5af3866d00000000, 0xd844099200000000, 0xee158bb600000000, + 0xb4e60ddb00000000, 0x82b78fff00000000, 0xf18f63ff00000000, + 0xc7dee1db00000000, 0x9d2d67b600000000, 0xab7ce59200000000, + 0x29cb6a6d00000000, 0x1f9ae84900000000, 0x45696e2400000000, + 0x7338ec0000000000, 0xa319b62500000000, 0x9548340100000000, + 0xcfbbb26c00000000, 0xf9ea304800000000, 0x7b5dbfb700000000, + 0x4d0c3d9300000000, 0x17ffbbfe00000000, 0x21ae39da00000000, + 0x5296d5da00000000, 0x64c757fe00000000, 0x3e34d19300000000, + 0x086553b700000000, 0x8ad2dc4800000000, 0xbc835e6c00000000, + 0xe670d80100000000, 0xd0215a2500000000, 0x46336c4b00000000, + 0x7062ee6f00000000, 0x2a91680200000000, 0x1cc0ea2600000000, + 0x9e7765d900000000, 0xa826e7fd00000000, 0xf2d5619000000000, + 0xc484e3b400000000, 0xb7bc0fb400000000, 0x81ed8d9000000000, + 0xdb1e0bfd00000000, 0xed4f89d900000000, 0x6ff8062600000000, + 0x59a9840200000000, 0x035a026f00000000, 0x350b804b00000000, + 0xe52ada6e00000000, 0xd37b584a00000000, 0x8988de2700000000, + 0xbfd95c0300000000, 0x3d6ed3fc00000000, 0x0b3f51d800000000, + 0x51ccd7b500000000, 0x679d559100000000, 0x14a5b99100000000, + 0x22f43bb500000000, 0x7807bdd800000000, 0x4e563ffc00000000, + 0xcce1b00300000000, 0xfab0322700000000, 0xa043b44a00000000, + 0x9612366e00000000, 0x8c66d89600000000, 0xba375ab200000000, + 0xe0c4dcdf00000000, 0xd6955efb00000000, 0x5422d10400000000, + 0x6273532000000000, 0x3880d54d00000000, 0x0ed1576900000000, + 0x7de9bb6900000000, 0x4bb8394d00000000, 0x114bbf2000000000, + 0x271a3d0400000000, 0xa5adb2fb00000000, 0x93fc30df00000000, + 0xc90fb6b200000000, 0xff5e349600000000, 0x2f7f6eb300000000, + 0x192eec9700000000, 0x43dd6afa00000000, 0x758ce8de00000000, + 0xf73b672100000000, 0xc16ae50500000000, 0x9b99636800000000, + 0xadc8e14c00000000, 0xdef00d4c00000000, 0xe8a18f6800000000, + 0xb252090500000000, 0x84038b2100000000, 0x06b404de00000000, + 0x30e586fa00000000, 0x6a16009700000000, 0x5c4782b300000000, + 0xca55b4dd00000000, 0xfc0436f900000000, 0xa6f7b09400000000, + 0x90a632b000000000, 0x1211bd4f00000000, 0x24403f6b00000000, + 0x7eb3b90600000000, 0x48e23b2200000000, 0x3bdad72200000000, + 0x0d8b550600000000, 0x5778d36b00000000, 0x6129514f00000000, + 0xe39edeb000000000, 0xd5cf5c9400000000, 0x8f3cdaf900000000, + 0xb96d58dd00000000, 0x694c02f800000000, 0x5f1d80dc00000000, + 0x05ee06b100000000, 0x33bf849500000000, 0xb1080b6a00000000, + 0x8759894e00000000, 0xddaa0f2300000000, 0xebfb8d0700000000, + 0x98c3610700000000, 0xae92e32300000000, 0xf461654e00000000, + 0xc230e76a00000000, 0x4087689500000000, 0x76d6eab100000000, + 0x2c256cdc00000000, 0x1a74eef800000000, 0x59cbc1f600000000, + 0x6f9a43d200000000, 0x3569c5bf00000000, 0x0338479b00000000, + 0x818fc86400000000, 0xb7de4a4000000000, 0xed2dcc2d00000000, + 0xdb7c4e0900000000, 0xa844a20900000000, 0x9e15202d00000000, + 0xc4e6a64000000000, 0xf2b7246400000000, 0x7000ab9b00000000, + 0x465129bf00000000, 0x1ca2afd200000000, 0x2af32df600000000, + 0xfad277d300000000, 0xcc83f5f700000000, 0x9670739a00000000, + 0xa021f1be00000000, 0x22967e4100000000, 0x14c7fc6500000000, + 0x4e347a0800000000, 0x7865f82c00000000, 0x0b5d142c00000000, + 0x3d0c960800000000, 0x67ff106500000000, 0x51ae924100000000, + 0xd3191dbe00000000, 0xe5489f9a00000000, 0xbfbb19f700000000, + 0x89ea9bd300000000, 0x1ff8adbd00000000, 0x29a92f9900000000, + 0x735aa9f400000000, 0x450b2bd000000000, 0xc7bca42f00000000, + 0xf1ed260b00000000, 0xab1ea06600000000, 0x9d4f224200000000, + 0xee77ce4200000000, 0xd8264c6600000000, 0x82d5ca0b00000000, + 0xb484482f00000000, 0x3633c7d000000000, 0x006245f400000000, + 0x5a91c39900000000, 0x6cc041bd00000000, 0xbce11b9800000000, + 0x8ab099bc00000000, 0xd0431fd100000000, 0xe6129df500000000, + 0x64a5120a00000000, 0x52f4902e00000000, 0x0807164300000000, + 0x3e56946700000000, 0x4d6e786700000000, 0x7b3ffa4300000000, + 0x21cc7c2e00000000, 0x179dfe0a00000000, 0x952a71f500000000, + 0xa37bf3d100000000, 0xf98875bc00000000, 0xcfd9f79800000000, + 0xd5ad196000000000, 0xe3fc9b4400000000, 0xb90f1d2900000000, + 0x8f5e9f0d00000000, 0x0de910f200000000, 0x3bb892d600000000, + 0x614b14bb00000000, 0x571a969f00000000, 0x24227a9f00000000, + 0x1273f8bb00000000, 0x48807ed600000000, 0x7ed1fcf200000000, + 0xfc66730d00000000, 0xca37f12900000000, 0x90c4774400000000, + 0xa695f56000000000, 0x76b4af4500000000, 0x40e52d6100000000, + 0x1a16ab0c00000000, 0x2c47292800000000, 0xaef0a6d700000000, + 0x98a124f300000000, 0xc252a29e00000000, 0xf40320ba00000000, + 0x873bccba00000000, 0xb16a4e9e00000000, 0xeb99c8f300000000, + 0xddc84ad700000000, 0x5f7fc52800000000, 0x692e470c00000000, + 0x33ddc16100000000, 0x058c434500000000, 0x939e752b00000000, + 0xa5cff70f00000000, 0xff3c716200000000, 0xc96df34600000000, + 0x4bda7cb900000000, 0x7d8bfe9d00000000, 0x277878f000000000, + 0x1129fad400000000, 0x621116d400000000, 0x544094f000000000, + 0x0eb3129d00000000, 0x38e290b900000000, 0xba551f4600000000, + 0x8c049d6200000000, 0xd6f71b0f00000000, 0xe0a6992b00000000, + 0x3087c30e00000000, 0x06d6412a00000000, 0x5c25c74700000000, + 0x6a74456300000000, 0xe8c3ca9c00000000, 0xde9248b800000000, + 0x8461ced500000000, 0xb2304cf100000000, 0xc108a0f100000000, + 0xf75922d500000000, 0xadaaa4b800000000, 0x9bfb269c00000000, + 0x194ca96300000000, 0x2f1d2b4700000000, 0x75eead2a00000000, + 0x43bf2f0e00000000}, + {0x0000000000000000, 0xc8179ecf00000000, 0xd1294d4400000000, + 0x193ed38b00000000, 0xa2539a8800000000, 0x6a44044700000000, + 0x737ad7cc00000000, 0xbb6d490300000000, 0x05a145ca00000000, + 0xcdb6db0500000000, 0xd488088e00000000, 0x1c9f964100000000, + 0xa7f2df4200000000, 0x6fe5418d00000000, 0x76db920600000000, + 0xbecc0cc900000000, 0x4b44fa4f00000000, 0x8353648000000000, + 0x9a6db70b00000000, 0x527a29c400000000, 0xe91760c700000000, + 0x2100fe0800000000, 0x383e2d8300000000, 0xf029b34c00000000, + 0x4ee5bf8500000000, 0x86f2214a00000000, 0x9fccf2c100000000, + 0x57db6c0e00000000, 0xecb6250d00000000, 0x24a1bbc200000000, + 0x3d9f684900000000, 0xf588f68600000000, 0x9688f49f00000000, + 0x5e9f6a5000000000, 0x47a1b9db00000000, 0x8fb6271400000000, + 0x34db6e1700000000, 0xfcccf0d800000000, 0xe5f2235300000000, + 0x2de5bd9c00000000, 0x9329b15500000000, 0x5b3e2f9a00000000, + 0x4200fc1100000000, 0x8a1762de00000000, 0x317a2bdd00000000, + 0xf96db51200000000, 0xe053669900000000, 0x2844f85600000000, + 0xddcc0ed000000000, 0x15db901f00000000, 0x0ce5439400000000, + 0xc4f2dd5b00000000, 0x7f9f945800000000, 0xb7880a9700000000, + 0xaeb6d91c00000000, 0x66a147d300000000, 0xd86d4b1a00000000, + 0x107ad5d500000000, 0x0944065e00000000, 0xc153989100000000, + 0x7a3ed19200000000, 0xb2294f5d00000000, 0xab179cd600000000, + 0x6300021900000000, 0x6d1798e400000000, 0xa500062b00000000, + 0xbc3ed5a000000000, 0x74294b6f00000000, 0xcf44026c00000000, + 0x07539ca300000000, 0x1e6d4f2800000000, 0xd67ad1e700000000, + 0x68b6dd2e00000000, 0xa0a143e100000000, 0xb99f906a00000000, + 0x71880ea500000000, 0xcae547a600000000, 0x02f2d96900000000, + 0x1bcc0ae200000000, 0xd3db942d00000000, 0x265362ab00000000, + 0xee44fc6400000000, 0xf77a2fef00000000, 0x3f6db12000000000, + 0x8400f82300000000, 0x4c1766ec00000000, 0x5529b56700000000, + 0x9d3e2ba800000000, 0x23f2276100000000, 0xebe5b9ae00000000, + 0xf2db6a2500000000, 0x3accf4ea00000000, 0x81a1bde900000000, + 0x49b6232600000000, 0x5088f0ad00000000, 0x989f6e6200000000, + 0xfb9f6c7b00000000, 0x3388f2b400000000, 0x2ab6213f00000000, + 0xe2a1bff000000000, 0x59ccf6f300000000, 0x91db683c00000000, + 0x88e5bbb700000000, 0x40f2257800000000, 0xfe3e29b100000000, + 0x3629b77e00000000, 0x2f1764f500000000, 0xe700fa3a00000000, + 0x5c6db33900000000, 0x947a2df600000000, 0x8d44fe7d00000000, + 0x455360b200000000, 0xb0db963400000000, 0x78cc08fb00000000, + 0x61f2db7000000000, 0xa9e545bf00000000, 0x12880cbc00000000, + 0xda9f927300000000, 0xc3a141f800000000, 0x0bb6df3700000000, + 0xb57ad3fe00000000, 0x7d6d4d3100000000, 0x64539eba00000000, + 0xac44007500000000, 0x1729497600000000, 0xdf3ed7b900000000, + 0xc600043200000000, 0x0e179afd00000000, 0x9b28411200000000, + 0x533fdfdd00000000, 0x4a010c5600000000, 0x8216929900000000, + 0x397bdb9a00000000, 0xf16c455500000000, 0xe85296de00000000, + 0x2045081100000000, 0x9e8904d800000000, 0x569e9a1700000000, + 0x4fa0499c00000000, 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0x6a1a9d4a00000000, 0x46e7c55c00000000, + 0xa41a4dd100000000, 0xc31aa59c00000000, 0x21e72d1100000000, + 0xf613a60500000000, 0x14ee2e8800000000, 0x73eec6c500000000, + 0x91134e4800000000, 0xbdee165e00000000, 0x5f139ed300000000, + 0x3813769e00000000, 0xdaeefe1300000000, 0x60e9c7b200000000, + 0x82144f3f00000000, 0xe514a77200000000, 0x07e92fff00000000, + 0x2b1477e900000000, 0xc9e9ff6400000000, 0xaee9172900000000, + 0x4c149fa400000000, 0x77c758bb00000000, 0x953ad03600000000, + 0xf23a387b00000000, 0x10c7b0f600000000, 0x3c3ae8e000000000, + 0xdec7606d00000000, 0xb9c7882000000000, 0x5b3a00ad00000000, + 0xe13d390c00000000, 0x03c0b18100000000, 0x64c059cc00000000, + 0x863dd14100000000, 0xaac0895700000000, 0x483d01da00000000, + 0x2f3de99700000000, 0xcdc0611a00000000, 0x1a34ea0e00000000, + 0xf8c9628300000000, 0x9fc98ace00000000, 0x7d34024300000000, + 0x51c95a5500000000, 0xb334d2d800000000, 0xd4343a9500000000, + 0x36c9b21800000000, 0x8cce8bb900000000, 0x6e33033400000000, + 0x0933eb7900000000, 0xebce63f400000000, 0xc7333be200000000, + 0x25ceb36f00000000, 0x42ce5b2200000000, 0xa033d3af00000000, + 0xec274c0b00000000, 0x0edac48600000000, 0x69da2ccb00000000, + 0x8b27a44600000000, 0xa7dafc5000000000, 0x452774dd00000000, + 0x22279c9000000000, 0xc0da141d00000000, 0x7add2dbc00000000, + 0x9820a53100000000, 0xff204d7c00000000, 0x1dddc5f100000000, + 0x31209de700000000, 0xd3dd156a00000000, 0xb4ddfd2700000000, + 0x562075aa00000000, 0x81d4febe00000000, 0x6329763300000000, + 0x04299e7e00000000, 0xe6d416f300000000, 0xca294ee500000000, + 0x28d4c66800000000, 0x4fd42e2500000000, 0xad29a6a800000000, + 0x172e9f0900000000, 0xf5d3178400000000, 0x92d3ffc900000000, + 0x702e774400000000, 0x5cd32f5200000000, 0xbe2ea7df00000000, + 0xd92e4f9200000000, 0x3bd3c71f00000000, 0xaf88c0ad00000000, + 0x4d75482000000000, 0x2a75a06d00000000, 0xc88828e000000000, + 0xe47570f600000000, 0x0688f87b00000000, 0x6188103600000000, + 0x837598bb00000000, 0x3972a11a00000000, 0xdb8f299700000000, + 0xbc8fc1da00000000, 0x5e72495700000000, 0x728f114100000000, + 0x907299cc00000000, 0xf772718100000000, 0x158ff90c00000000, + 0xc27b721800000000, 0x2086fa9500000000, 0x478612d800000000, + 0xa57b9a5500000000, 0x8986c24300000000, 0x6b7b4ace00000000, + 0x0c7ba28300000000, 0xee862a0e00000000, 0x548113af00000000, + 0xb67c9b2200000000, 0xd17c736f00000000, 0x3381fbe200000000, + 0x1f7ca3f400000000, 0xfd812b7900000000, 0x9a81c33400000000, + 0x787c4bb900000000, 0x3468d41d00000000, 0xd6955c9000000000, + 0xb195b4dd00000000, 0x53683c5000000000, 0x7f95644600000000, + 0x9d68eccb00000000, 0xfa68048600000000, 0x18958c0b00000000, + 0xa292b5aa00000000, 0x406f3d2700000000, 0x276fd56a00000000, + 0xc5925de700000000, 0xe96f05f100000000, 0x0b928d7c00000000, + 0x6c92653100000000, 0x8e6fedbc00000000, 0x599b66a800000000, + 0xbb66ee2500000000, 0xdc66066800000000, 0x3e9b8ee500000000, + 0x1266d6f300000000, 0xf09b5e7e00000000, 0x979bb63300000000, + 0x75663ebe00000000, 0xcf61071f00000000, 0x2d9c8f9200000000, + 0x4a9c67df00000000, 0xa861ef5200000000, 0x849cb74400000000, + 0x66613fc900000000, 0x0161d78400000000, 0xe39c5f0900000000, + 0xd84f981600000000, 0x3ab2109b00000000, 0x5db2f8d600000000, + 0xbf4f705b00000000, 0x93b2284d00000000, 0x714fa0c000000000, + 0x164f488d00000000, 0xf4b2c00000000000, 0x4eb5f9a100000000, + 0xac48712c00000000, 0xcb48996100000000, 0x29b511ec00000000, + 0x054849fa00000000, 0xe7b5c17700000000, 0x80b5293a00000000, + 0x6248a1b700000000, 0xb5bc2aa300000000, 0x5741a22e00000000, + 0x30414a6300000000, 0xd2bcc2ee00000000, 0xfe419af800000000, + 0x1cbc127500000000, 0x7bbcfa3800000000, 0x994172b500000000, + 0x23464b1400000000, 0xc1bbc39900000000, 0xa6bb2bd400000000, + 0x4446a35900000000, 0x68bbfb4f00000000, 0x8a4673c200000000, + 0xed469b8f00000000, 0x0fbb130200000000, 0x43af8ca600000000, + 0xa152042b00000000, 0xc652ec6600000000, 0x24af64eb00000000, + 0x08523cfd00000000, 0xeaafb47000000000, 0x8daf5c3d00000000, + 0x6f52d4b000000000, 0xd555ed1100000000, 0x37a8659c00000000, + 0x50a88dd100000000, 0xb255055c00000000, 0x9ea85d4a00000000, + 0x7c55d5c700000000, 0x1b553d8a00000000, 0xf9a8b50700000000, + 0x2e5c3e1300000000, 0xcca1b69e00000000, 0xaba15ed300000000, + 0x495cd65e00000000, 0x65a18e4800000000, 0x875c06c500000000, + 0xe05cee8800000000, 0x02a1660500000000, 0xb8a65fa400000000, + 0x5a5bd72900000000, 0x3d5b3f6400000000, 0xdfa6b7e900000000, + 0xf35befff00000000, 0x11a6677200000000, 0x76a68f3f00000000, + 0x945b07b200000000}, + {0x0000000000000000, 0xa90b894e00000000, 0x5217129d00000000, + 0xfb1c9bd300000000, 0xe52855e100000000, 0x4c23dcaf00000000, + 0xb73f477c00000000, 0x1e34ce3200000000, 0x8b57db1900000000, + 0x225c525700000000, 0xd940c98400000000, 0x704b40ca00000000, + 0x6e7f8ef800000000, 0xc77407b600000000, 0x3c689c6500000000, + 0x9563152b00000000, 0x16afb63300000000, 0xbfa43f7d00000000, + 0x44b8a4ae00000000, 0xedb32de000000000, 0xf387e3d200000000, + 0x5a8c6a9c00000000, 0xa190f14f00000000, 0x089b780100000000, + 0x9df86d2a00000000, 0x34f3e46400000000, 0xcfef7fb700000000, + 0x66e4f6f900000000, 0x78d038cb00000000, 0xd1dbb18500000000, + 0x2ac72a5600000000, 0x83cca31800000000, 0x2c5e6d6700000000, + 0x8555e42900000000, 0x7e497ffa00000000, 0xd742f6b400000000, + 0xc976388600000000, 0x607db1c800000000, 0x9b612a1b00000000, + 0x326aa35500000000, 0xa709b67e00000000, 0x0e023f3000000000, + 0xf51ea4e300000000, 0x5c152dad00000000, 0x4221e39f00000000, + 0xeb2a6ad100000000, 0x1036f10200000000, 0xb93d784c00000000, + 0x3af1db5400000000, 0x93fa521a00000000, 0x68e6c9c900000000, + 0xc1ed408700000000, 0xdfd98eb500000000, 0x76d207fb00000000, + 0x8dce9c2800000000, 0x24c5156600000000, 0xb1a6004d00000000, + 0x18ad890300000000, 0xe3b112d000000000, 0x4aba9b9e00000000, + 0x548e55ac00000000, 0xfd85dce200000000, 0x0699473100000000, + 0xaf92ce7f00000000, 0x58bcdace00000000, 0xf1b7538000000000, + 0x0aabc85300000000, 0xa3a0411d00000000, 0xbd948f2f00000000, + 0x149f066100000000, 0xef839db200000000, 0x468814fc00000000, + 0xd3eb01d700000000, 0x7ae0889900000000, 0x81fc134a00000000, + 0x28f79a0400000000, 0x36c3543600000000, 0x9fc8dd7800000000, + 0x64d446ab00000000, 0xcddfcfe500000000, 0x4e136cfd00000000, + 0xe718e5b300000000, 0x1c047e6000000000, 0xb50ff72e00000000, + 0xab3b391c00000000, 0x0230b05200000000, 0xf92c2b8100000000, + 0x5027a2cf00000000, 0xc544b7e400000000, 0x6c4f3eaa00000000, + 0x9753a57900000000, 0x3e582c3700000000, 0x206ce20500000000, + 0x89676b4b00000000, 0x727bf09800000000, 0xdb7079d600000000, + 0x74e2b7a900000000, 0xdde93ee700000000, 0x26f5a53400000000, + 0x8ffe2c7a00000000, 0x91cae24800000000, 0x38c16b0600000000, + 0xc3ddf0d500000000, 0x6ad6799b00000000, 0xffb56cb000000000, + 0x56bee5fe00000000, 0xada27e2d00000000, 0x04a9f76300000000, + 0x1a9d395100000000, 0xb396b01f00000000, 0x488a2bcc00000000, + 0xe181a28200000000, 0x624d019a00000000, 0xcb4688d400000000, + 0x305a130700000000, 0x99519a4900000000, 0x8765547b00000000, + 0x2e6edd3500000000, 0xd57246e600000000, 0x7c79cfa800000000, + 0xe91ada8300000000, 0x401153cd00000000, 0xbb0dc81e00000000, + 0x1206415000000000, 0x0c328f6200000000, 0xa539062c00000000, + 0x5e259dff00000000, 0xf72e14b100000000, 0xf17ec44600000000, + 0x58754d0800000000, 0xa369d6db00000000, 0x0a625f9500000000, + 0x145691a700000000, 0xbd5d18e900000000, 0x4641833a00000000, + 0xef4a0a7400000000, 0x7a291f5f00000000, 0xd322961100000000, + 0x283e0dc200000000, 0x8135848c00000000, 0x9f014abe00000000, + 0x360ac3f000000000, 0xcd16582300000000, 0x641dd16d00000000, + 0xe7d1727500000000, 0x4edafb3b00000000, 0xb5c660e800000000, + 0x1ccde9a600000000, 0x02f9279400000000, 0xabf2aeda00000000, + 0x50ee350900000000, 0xf9e5bc4700000000, 0x6c86a96c00000000, + 0xc58d202200000000, 0x3e91bbf100000000, 0x979a32bf00000000, + 0x89aefc8d00000000, 0x20a575c300000000, 0xdbb9ee1000000000, + 0x72b2675e00000000, 0xdd20a92100000000, 0x742b206f00000000, + 0x8f37bbbc00000000, 0x263c32f200000000, 0x3808fcc000000000, + 0x9103758e00000000, 0x6a1fee5d00000000, 0xc314671300000000, + 0x5677723800000000, 0xff7cfb7600000000, 0x046060a500000000, + 0xad6be9eb00000000, 0xb35f27d900000000, 0x1a54ae9700000000, + 0xe148354400000000, 0x4843bc0a00000000, 0xcb8f1f1200000000, + 0x6284965c00000000, 0x99980d8f00000000, 0x309384c100000000, + 0x2ea74af300000000, 0x87acc3bd00000000, 0x7cb0586e00000000, + 0xd5bbd12000000000, 0x40d8c40b00000000, 0xe9d34d4500000000, + 0x12cfd69600000000, 0xbbc45fd800000000, 0xa5f091ea00000000, + 0x0cfb18a400000000, 0xf7e7837700000000, 0x5eec0a3900000000, + 0xa9c21e8800000000, 0x00c997c600000000, 0xfbd50c1500000000, + 0x52de855b00000000, 0x4cea4b6900000000, 0xe5e1c22700000000, + 0x1efd59f400000000, 0xb7f6d0ba00000000, 0x2295c59100000000, + 0x8b9e4cdf00000000, 0x7082d70c00000000, 0xd9895e4200000000, + 0xc7bd907000000000, 0x6eb6193e00000000, 0x95aa82ed00000000, + 0x3ca10ba300000000, 0xbf6da8bb00000000, 0x166621f500000000, + 0xed7aba2600000000, 0x4471336800000000, 0x5a45fd5a00000000, + 0xf34e741400000000, 0x0852efc700000000, 0xa159668900000000, + 0x343a73a200000000, 0x9d31faec00000000, 0x662d613f00000000, + 0xcf26e87100000000, 0xd112264300000000, 0x7819af0d00000000, + 0x830534de00000000, 0x2a0ebd9000000000, 0x859c73ef00000000, + 0x2c97faa100000000, 0xd78b617200000000, 0x7e80e83c00000000, + 0x60b4260e00000000, 0xc9bfaf4000000000, 0x32a3349300000000, + 0x9ba8bddd00000000, 0x0ecba8f600000000, 0xa7c021b800000000, + 0x5cdcba6b00000000, 0xf5d7332500000000, 0xebe3fd1700000000, + 0x42e8745900000000, 0xb9f4ef8a00000000, 0x10ff66c400000000, + 0x9333c5dc00000000, 0x3a384c9200000000, 0xc124d74100000000, + 0x682f5e0f00000000, 0x761b903d00000000, 0xdf10197300000000, + 0x240c82a000000000, 0x8d070bee00000000, 0x18641ec500000000, + 0xb16f978b00000000, 0x4a730c5800000000, 0xe378851600000000, + 0xfd4c4b2400000000, 0x5447c26a00000000, 0xaf5b59b900000000, + 0x0650d0f700000000}, + {0x0000000000000000, 0x479244af00000000, 0xcf22f88500000000, + 0x88b0bc2a00000000, 0xdf4381d000000000, 0x98d1c57f00000000, + 0x1061795500000000, 0x57f33dfa00000000, 0xff81737a00000000, + 0xb81337d500000000, 0x30a38bff00000000, 0x7731cf5000000000, + 0x20c2f2aa00000000, 0x6750b60500000000, 0xefe00a2f00000000, + 0xa8724e8000000000, 0xfe03e7f400000000, 0xb991a35b00000000, + 0x31211f7100000000, 0x76b35bde00000000, 0x2140662400000000, + 0x66d2228b00000000, 0xee629ea100000000, 0xa9f0da0e00000000, + 0x0182948e00000000, 0x4610d02100000000, 0xcea06c0b00000000, + 0x893228a400000000, 0xdec1155e00000000, 0x995351f100000000, + 0x11e3eddb00000000, 0x5671a97400000000, 0xbd01bf3200000000, + 0xfa93fb9d00000000, 0x722347b700000000, 0x35b1031800000000, + 0x62423ee200000000, 0x25d07a4d00000000, 0xad60c66700000000, + 0xeaf282c800000000, 0x4280cc4800000000, 0x051288e700000000, + 0x8da234cd00000000, 0xca30706200000000, 0x9dc34d9800000000, + 0xda51093700000000, 0x52e1b51d00000000, 0x1573f1b200000000, + 0x430258c600000000, 0x04901c6900000000, 0x8c20a04300000000, + 0xcbb2e4ec00000000, 0x9c41d91600000000, 0xdbd39db900000000, + 0x5363219300000000, 0x14f1653c00000000, 0xbc832bbc00000000, + 0xfb116f1300000000, 0x73a1d33900000000, 0x3433979600000000, + 0x63c0aa6c00000000, 0x2452eec300000000, 0xace252e900000000, + 0xeb70164600000000, 0x7a037e6500000000, 0x3d913aca00000000, + 0xb52186e000000000, 0xf2b3c24f00000000, 0xa540ffb500000000, + 0xe2d2bb1a00000000, 0x6a62073000000000, 0x2df0439f00000000, + 0x85820d1f00000000, 0xc21049b000000000, 0x4aa0f59a00000000, + 0x0d32b13500000000, 0x5ac18ccf00000000, 0x1d53c86000000000, + 0x95e3744a00000000, 0xd27130e500000000, 0x8400999100000000, + 0xc392dd3e00000000, 0x4b22611400000000, 0x0cb025bb00000000, + 0x5b43184100000000, 0x1cd15cee00000000, 0x9461e0c400000000, + 0xd3f3a46b00000000, 0x7b81eaeb00000000, 0x3c13ae4400000000, + 0xb4a3126e00000000, 0xf33156c100000000, 0xa4c26b3b00000000, + 0xe3502f9400000000, 0x6be093be00000000, 0x2c72d71100000000, + 0xc702c15700000000, 0x809085f800000000, 0x082039d200000000, + 0x4fb27d7d00000000, 0x1841408700000000, 0x5fd3042800000000, + 0xd763b80200000000, 0x90f1fcad00000000, 0x3883b22d00000000, + 0x7f11f68200000000, 0xf7a14aa800000000, 0xb0330e0700000000, + 0xe7c033fd00000000, 0xa052775200000000, 0x28e2cb7800000000, + 0x6f708fd700000000, 0x390126a300000000, 0x7e93620c00000000, + 0xf623de2600000000, 0xb1b19a8900000000, 0xe642a77300000000, + 0xa1d0e3dc00000000, 0x29605ff600000000, 0x6ef21b5900000000, + 0xc68055d900000000, 0x8112117600000000, 0x09a2ad5c00000000, + 0x4e30e9f300000000, 0x19c3d40900000000, 0x5e5190a600000000, + 0xd6e12c8c00000000, 0x9173682300000000, 0xf406fcca00000000, + 0xb394b86500000000, 0x3b24044f00000000, 0x7cb640e000000000, + 0x2b457d1a00000000, 0x6cd739b500000000, 0xe467859f00000000, + 0xa3f5c13000000000, 0x0b878fb000000000, 0x4c15cb1f00000000, + 0xc4a5773500000000, 0x8337339a00000000, 0xd4c40e6000000000, + 0x93564acf00000000, 0x1be6f6e500000000, 0x5c74b24a00000000, + 0x0a051b3e00000000, 0x4d975f9100000000, 0xc527e3bb00000000, + 0x82b5a71400000000, 0xd5469aee00000000, 0x92d4de4100000000, + 0x1a64626b00000000, 0x5df626c400000000, 0xf584684400000000, + 0xb2162ceb00000000, 0x3aa690c100000000, 0x7d34d46e00000000, + 0x2ac7e99400000000, 0x6d55ad3b00000000, 0xe5e5111100000000, + 0xa27755be00000000, 0x490743f800000000, 0x0e95075700000000, + 0x8625bb7d00000000, 0xc1b7ffd200000000, 0x9644c22800000000, + 0xd1d6868700000000, 0x59663aad00000000, 0x1ef47e0200000000, + 0xb686308200000000, 0xf114742d00000000, 0x79a4c80700000000, + 0x3e368ca800000000, 0x69c5b15200000000, 0x2e57f5fd00000000, + 0xa6e749d700000000, 0xe1750d7800000000, 0xb704a40c00000000, + 0xf096e0a300000000, 0x78265c8900000000, 0x3fb4182600000000, + 0x684725dc00000000, 0x2fd5617300000000, 0xa765dd5900000000, + 0xe0f799f600000000, 0x4885d77600000000, 0x0f1793d900000000, + 0x87a72ff300000000, 0xc0356b5c00000000, 0x97c656a600000000, + 0xd054120900000000, 0x58e4ae2300000000, 0x1f76ea8c00000000, + 0x8e0582af00000000, 0xc997c60000000000, 0x41277a2a00000000, + 0x06b53e8500000000, 0x5146037f00000000, 0x16d447d000000000, + 0x9e64fbfa00000000, 0xd9f6bf5500000000, 0x7184f1d500000000, + 0x3616b57a00000000, 0xbea6095000000000, 0xf9344dff00000000, + 0xaec7700500000000, 0xe95534aa00000000, 0x61e5888000000000, + 0x2677cc2f00000000, 0x7006655b00000000, 0x379421f400000000, + 0xbf249dde00000000, 0xf8b6d97100000000, 0xaf45e48b00000000, + 0xe8d7a02400000000, 0x60671c0e00000000, 0x27f558a100000000, + 0x8f87162100000000, 0xc815528e00000000, 0x40a5eea400000000, + 0x0737aa0b00000000, 0x50c497f100000000, 0x1756d35e00000000, + 0x9fe66f7400000000, 0xd8742bdb00000000, 0x33043d9d00000000, + 0x7496793200000000, 0xfc26c51800000000, 0xbbb481b700000000, + 0xec47bc4d00000000, 0xabd5f8e200000000, 0x236544c800000000, + 0x64f7006700000000, 0xcc854ee700000000, 0x8b170a4800000000, + 0x03a7b66200000000, 0x4435f2cd00000000, 0x13c6cf3700000000, + 0x54548b9800000000, 0xdce437b200000000, 0x9b76731d00000000, + 0xcd07da6900000000, 0x8a959ec600000000, 0x022522ec00000000, + 0x45b7664300000000, 0x12445bb900000000, 0x55d61f1600000000, + 0xdd66a33c00000000, 0x9af4e79300000000, 0x3286a91300000000, + 0x7514edbc00000000, 0xfda4519600000000, 0xba36153900000000, + 0xedc528c300000000, 0xaa576c6c00000000, 0x22e7d04600000000, + 0x657594e900000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0x65673b46, 0xcace768c, 0xafa94dca, 0x4eedeb59, + 0x2b8ad01f, 0x84239dd5, 0xe144a693, 0x9ddbd6b2, 0xf8bcedf4, + 0x5715a03e, 0x32729b78, 0xd3363deb, 0xb65106ad, 0x19f84b67, + 0x7c9f7021, 0xe0c6ab25, 0x85a19063, 0x2a08dda9, 0x4f6fe6ef, + 0xae2b407c, 0xcb4c7b3a, 0x64e536f0, 0x01820db6, 0x7d1d7d97, + 0x187a46d1, 0xb7d30b1b, 0xd2b4305d, 0x33f096ce, 0x5697ad88, + 0xf93ee042, 0x9c59db04, 0x1afc500b, 0x7f9b6b4d, 0xd0322687, + 0xb5551dc1, 0x5411bb52, 0x31768014, 0x9edfcdde, 0xfbb8f698, + 0x872786b9, 0xe240bdff, 0x4de9f035, 0x288ecb73, 0xc9ca6de0, + 0xacad56a6, 0x03041b6c, 0x6663202a, 0xfa3afb2e, 0x9f5dc068, + 0x30f48da2, 0x5593b6e4, 0xb4d71077, 0xd1b02b31, 0x7e1966fb, + 0x1b7e5dbd, 0x67e12d9c, 0x028616da, 0xad2f5b10, 0xc8486056, + 0x290cc6c5, 0x4c6bfd83, 0xe3c2b049, 0x86a58b0f, 0x35f8a016, + 0x509f9b50, 0xff36d69a, 0x9a51eddc, 0x7b154b4f, 0x1e727009, + 0xb1db3dc3, 0xd4bc0685, 0xa82376a4, 0xcd444de2, 0x62ed0028, + 0x078a3b6e, 0xe6ce9dfd, 0x83a9a6bb, 0x2c00eb71, 0x4967d037, + 0xd53e0b33, 0xb0593075, 0x1ff07dbf, 0x7a9746f9, 0x9bd3e06a, + 0xfeb4db2c, 0x511d96e6, 0x347aada0, 0x48e5dd81, 0x2d82e6c7, + 0x822bab0d, 0xe74c904b, 0x060836d8, 0x636f0d9e, 0xccc64054, + 0xa9a17b12, 0x2f04f01d, 0x4a63cb5b, 0xe5ca8691, 0x80adbdd7, + 0x61e91b44, 0x048e2002, 0xab276dc8, 0xce40568e, 0xb2df26af, + 0xd7b81de9, 0x78115023, 0x1d766b65, 0xfc32cdf6, 0x9955f6b0, + 0x36fcbb7a, 0x539b803c, 0xcfc25b38, 0xaaa5607e, 0x050c2db4, + 0x606b16f2, 0x812fb061, 0xe4488b27, 0x4be1c6ed, 0x2e86fdab, + 0x52198d8a, 0x377eb6cc, 0x98d7fb06, 0xfdb0c040, 0x1cf466d3, + 0x79935d95, 0xd63a105f, 0xb35d2b19, 0x6bf1402c, 0x0e967b6a, + 0xa13f36a0, 0xc4580de6, 0x251cab75, 0x407b9033, 0xefd2ddf9, + 0x8ab5e6bf, 0xf62a969e, 0x934dadd8, 0x3ce4e012, 0x5983db54, + 0xb8c77dc7, 0xdda04681, 0x72090b4b, 0x176e300d, 0x8b37eb09, + 0xee50d04f, 0x41f99d85, 0x249ea6c3, 0xc5da0050, 0xa0bd3b16, + 0x0f1476dc, 0x6a734d9a, 0x16ec3dbb, 0x738b06fd, 0xdc224b37, + 0xb9457071, 0x5801d6e2, 0x3d66eda4, 0x92cfa06e, 0xf7a89b28, + 0x710d1027, 0x146a2b61, 0xbbc366ab, 0xdea45ded, 0x3fe0fb7e, + 0x5a87c038, 0xf52e8df2, 0x9049b6b4, 0xecd6c695, 0x89b1fdd3, + 0x2618b019, 0x437f8b5f, 0xa23b2dcc, 0xc75c168a, 0x68f55b40, + 0x0d926006, 0x91cbbb02, 0xf4ac8044, 0x5b05cd8e, 0x3e62f6c8, + 0xdf26505b, 0xba416b1d, 0x15e826d7, 0x708f1d91, 0x0c106db0, + 0x697756f6, 0xc6de1b3c, 0xa3b9207a, 0x42fd86e9, 0x279abdaf, + 0x8833f065, 0xed54cb23, 0x5e09e03a, 0x3b6edb7c, 0x94c796b6, + 0xf1a0adf0, 0x10e40b63, 0x75833025, 0xda2a7def, 0xbf4d46a9, + 0xc3d23688, 0xa6b50dce, 0x091c4004, 0x6c7b7b42, 0x8d3fddd1, + 0xe858e697, 0x47f1ab5d, 0x2296901b, 0xbecf4b1f, 0xdba87059, + 0x74013d93, 0x116606d5, 0xf022a046, 0x95459b00, 0x3aecd6ca, + 0x5f8bed8c, 0x23149dad, 0x4673a6eb, 0xe9daeb21, 0x8cbdd067, + 0x6df976f4, 0x089e4db2, 0xa7370078, 0xc2503b3e, 0x44f5b031, + 0x21928b77, 0x8e3bc6bd, 0xeb5cfdfb, 0x0a185b68, 0x6f7f602e, + 0xc0d62de4, 0xa5b116a2, 0xd92e6683, 0xbc495dc5, 0x13e0100f, + 0x76872b49, 0x97c38dda, 0xf2a4b69c, 0x5d0dfb56, 0x386ac010, + 0xa4331b14, 0xc1542052, 0x6efd6d98, 0x0b9a56de, 0xeadef04d, + 0x8fb9cb0b, 0x201086c1, 0x4577bd87, 0x39e8cda6, 0x5c8ff6e0, + 0xf326bb2a, 0x9641806c, 0x770526ff, 0x12621db9, 0xbdcb5073, + 0xd8ac6b35}, + {0x00000000, 0xd7e28058, 0x74b406f1, 0xa35686a9, 0xe9680de2, + 0x3e8a8dba, 0x9ddc0b13, 0x4a3e8b4b, 0x09a11d85, 0xde439ddd, + 0x7d151b74, 0xaaf79b2c, 0xe0c91067, 0x372b903f, 0x947d1696, + 0x439f96ce, 0x13423b0a, 0xc4a0bb52, 0x67f63dfb, 0xb014bda3, + 0xfa2a36e8, 0x2dc8b6b0, 0x8e9e3019, 0x597cb041, 0x1ae3268f, + 0xcd01a6d7, 0x6e57207e, 0xb9b5a026, 0xf38b2b6d, 0x2469ab35, + 0x873f2d9c, 0x50ddadc4, 0x26847614, 0xf166f64c, 0x523070e5, + 0x85d2f0bd, 0xcfec7bf6, 0x180efbae, 0xbb587d07, 0x6cbafd5f, + 0x2f256b91, 0xf8c7ebc9, 0x5b916d60, 0x8c73ed38, 0xc64d6673, + 0x11afe62b, 0xb2f96082, 0x651be0da, 0x35c64d1e, 0xe224cd46, + 0x41724bef, 0x9690cbb7, 0xdcae40fc, 0x0b4cc0a4, 0xa81a460d, + 0x7ff8c655, 0x3c67509b, 0xeb85d0c3, 0x48d3566a, 0x9f31d632, + 0xd50f5d79, 0x02eddd21, 0xa1bb5b88, 0x7659dbd0, 0x4d08ec28, + 0x9aea6c70, 0x39bcead9, 0xee5e6a81, 0xa460e1ca, 0x73826192, + 0xd0d4e73b, 0x07366763, 0x44a9f1ad, 0x934b71f5, 0x301df75c, + 0xe7ff7704, 0xadc1fc4f, 0x7a237c17, 0xd975fabe, 0x0e977ae6, + 0x5e4ad722, 0x89a8577a, 0x2afed1d3, 0xfd1c518b, 0xb722dac0, + 0x60c05a98, 0xc396dc31, 0x14745c69, 0x57ebcaa7, 0x80094aff, + 0x235fcc56, 0xf4bd4c0e, 0xbe83c745, 0x6961471d, 0xca37c1b4, + 0x1dd541ec, 0x6b8c9a3c, 0xbc6e1a64, 0x1f389ccd, 0xc8da1c95, + 0x82e497de, 0x55061786, 0xf650912f, 0x21b21177, 0x622d87b9, + 0xb5cf07e1, 0x16998148, 0xc17b0110, 0x8b458a5b, 0x5ca70a03, + 0xfff18caa, 0x28130cf2, 0x78cea136, 0xaf2c216e, 0x0c7aa7c7, + 0xdb98279f, 0x91a6acd4, 0x46442c8c, 0xe512aa25, 0x32f02a7d, + 0x716fbcb3, 0xa68d3ceb, 0x05dbba42, 0xd2393a1a, 0x9807b151, + 0x4fe53109, 0xecb3b7a0, 0x3b5137f8, 0x9a11d850, 0x4df35808, + 0xeea5dea1, 0x39475ef9, 0x7379d5b2, 0xa49b55ea, 0x07cdd343, + 0xd02f531b, 0x93b0c5d5, 0x4452458d, 0xe704c324, 0x30e6437c, + 0x7ad8c837, 0xad3a486f, 0x0e6ccec6, 0xd98e4e9e, 0x8953e35a, + 0x5eb16302, 0xfde7e5ab, 0x2a0565f3, 0x603beeb8, 0xb7d96ee0, + 0x148fe849, 0xc36d6811, 0x80f2fedf, 0x57107e87, 0xf446f82e, + 0x23a47876, 0x699af33d, 0xbe787365, 0x1d2ef5cc, 0xcacc7594, + 0xbc95ae44, 0x6b772e1c, 0xc821a8b5, 0x1fc328ed, 0x55fda3a6, + 0x821f23fe, 0x2149a557, 0xf6ab250f, 0xb534b3c1, 0x62d63399, + 0xc180b530, 0x16623568, 0x5c5cbe23, 0x8bbe3e7b, 0x28e8b8d2, + 0xff0a388a, 0xafd7954e, 0x78351516, 0xdb6393bf, 0x0c8113e7, + 0x46bf98ac, 0x915d18f4, 0x320b9e5d, 0xe5e91e05, 0xa67688cb, + 0x71940893, 0xd2c28e3a, 0x05200e62, 0x4f1e8529, 0x98fc0571, + 0x3baa83d8, 0xec480380, 0xd7193478, 0x00fbb420, 0xa3ad3289, + 0x744fb2d1, 0x3e71399a, 0xe993b9c2, 0x4ac53f6b, 0x9d27bf33, + 0xdeb829fd, 0x095aa9a5, 0xaa0c2f0c, 0x7deeaf54, 0x37d0241f, + 0xe032a447, 0x436422ee, 0x9486a2b6, 0xc45b0f72, 0x13b98f2a, + 0xb0ef0983, 0x670d89db, 0x2d330290, 0xfad182c8, 0x59870461, + 0x8e658439, 0xcdfa12f7, 0x1a1892af, 0xb94e1406, 0x6eac945e, + 0x24921f15, 0xf3709f4d, 0x502619e4, 0x87c499bc, 0xf19d426c, + 0x267fc234, 0x8529449d, 0x52cbc4c5, 0x18f54f8e, 0xcf17cfd6, + 0x6c41497f, 0xbba3c927, 0xf83c5fe9, 0x2fdedfb1, 0x8c885918, + 0x5b6ad940, 0x1154520b, 0xc6b6d253, 0x65e054fa, 0xb202d4a2, + 0xe2df7966, 0x353df93e, 0x966b7f97, 0x4189ffcf, 0x0bb77484, + 0xdc55f4dc, 0x7f037275, 0xa8e1f22d, 0xeb7e64e3, 0x3c9ce4bb, + 0x9fca6212, 0x4828e24a, 0x02166901, 0xd5f4e959, 0x76a26ff0, + 0xa140efa8}, + {0x00000000, 0xef52b6e1, 0x05d46b83, 0xea86dd62, 0x0ba8d706, + 0xe4fa61e7, 0x0e7cbc85, 0xe12e0a64, 0x1751ae0c, 0xf80318ed, + 0x1285c58f, 0xfdd7736e, 0x1cf9790a, 0xf3abcfeb, 0x192d1289, + 0xf67fa468, 0x2ea35c18, 0xc1f1eaf9, 0x2b77379b, 0xc425817a, + 0x250b8b1e, 0xca593dff, 0x20dfe09d, 0xcf8d567c, 0x39f2f214, + 0xd6a044f5, 0x3c269997, 0xd3742f76, 0x325a2512, 0xdd0893f3, + 0x378e4e91, 0xd8dcf870, 0x5d46b830, 0xb2140ed1, 0x5892d3b3, + 0xb7c06552, 0x56ee6f36, 0xb9bcd9d7, 0x533a04b5, 0xbc68b254, + 0x4a17163c, 0xa545a0dd, 0x4fc37dbf, 0xa091cb5e, 0x41bfc13a, + 0xaeed77db, 0x446baab9, 0xab391c58, 0x73e5e428, 0x9cb752c9, + 0x76318fab, 0x9963394a, 0x784d332e, 0x971f85cf, 0x7d9958ad, + 0x92cbee4c, 0x64b44a24, 0x8be6fcc5, 0x616021a7, 0x8e329746, + 0x6f1c9d22, 0x804e2bc3, 0x6ac8f6a1, 0x859a4040, 0xba8d7060, + 0x55dfc681, 0xbf591be3, 0x500bad02, 0xb125a766, 0x5e771187, + 0xb4f1cce5, 0x5ba37a04, 0xaddcde6c, 0x428e688d, 0xa808b5ef, + 0x475a030e, 0xa674096a, 0x4926bf8b, 0xa3a062e9, 0x4cf2d408, + 0x942e2c78, 0x7b7c9a99, 0x91fa47fb, 0x7ea8f11a, 0x9f86fb7e, + 0x70d44d9f, 0x9a5290fd, 0x7500261c, 0x837f8274, 0x6c2d3495, + 0x86abe9f7, 0x69f95f16, 0x88d75572, 0x6785e393, 0x8d033ef1, + 0x62518810, 0xe7cbc850, 0x08997eb1, 0xe21fa3d3, 0x0d4d1532, + 0xec631f56, 0x0331a9b7, 0xe9b774d5, 0x06e5c234, 0xf09a665c, + 0x1fc8d0bd, 0xf54e0ddf, 0x1a1cbb3e, 0xfb32b15a, 0x146007bb, + 0xfee6dad9, 0x11b46c38, 0xc9689448, 0x263a22a9, 0xccbcffcb, + 0x23ee492a, 0xc2c0434e, 0x2d92f5af, 0xc71428cd, 0x28469e2c, + 0xde393a44, 0x316b8ca5, 0xdbed51c7, 0x34bfe726, 0xd591ed42, + 0x3ac35ba3, 0xd04586c1, 0x3f173020, 0xae6be681, 0x41395060, + 0xabbf8d02, 0x44ed3be3, 0xa5c33187, 0x4a918766, 0xa0175a04, + 0x4f45ece5, 0xb93a488d, 0x5668fe6c, 0xbcee230e, 0x53bc95ef, + 0xb2929f8b, 0x5dc0296a, 0xb746f408, 0x581442e9, 0x80c8ba99, + 0x6f9a0c78, 0x851cd11a, 0x6a4e67fb, 0x8b606d9f, 0x6432db7e, + 0x8eb4061c, 0x61e6b0fd, 0x97991495, 0x78cba274, 0x924d7f16, + 0x7d1fc9f7, 0x9c31c393, 0x73637572, 0x99e5a810, 0x76b71ef1, + 0xf32d5eb1, 0x1c7fe850, 0xf6f93532, 0x19ab83d3, 0xf88589b7, + 0x17d73f56, 0xfd51e234, 0x120354d5, 0xe47cf0bd, 0x0b2e465c, + 0xe1a89b3e, 0x0efa2ddf, 0xefd427bb, 0x0086915a, 0xea004c38, + 0x0552fad9, 0xdd8e02a9, 0x32dcb448, 0xd85a692a, 0x3708dfcb, + 0xd626d5af, 0x3974634e, 0xd3f2be2c, 0x3ca008cd, 0xcadfaca5, + 0x258d1a44, 0xcf0bc726, 0x205971c7, 0xc1777ba3, 0x2e25cd42, + 0xc4a31020, 0x2bf1a6c1, 0x14e696e1, 0xfbb42000, 0x1132fd62, + 0xfe604b83, 0x1f4e41e7, 0xf01cf706, 0x1a9a2a64, 0xf5c89c85, + 0x03b738ed, 0xece58e0c, 0x0663536e, 0xe931e58f, 0x081fefeb, + 0xe74d590a, 0x0dcb8468, 0xe2993289, 0x3a45caf9, 0xd5177c18, + 0x3f91a17a, 0xd0c3179b, 0x31ed1dff, 0xdebfab1e, 0x3439767c, + 0xdb6bc09d, 0x2d1464f5, 0xc246d214, 0x28c00f76, 0xc792b997, + 0x26bcb3f3, 0xc9ee0512, 0x2368d870, 0xcc3a6e91, 0x49a02ed1, + 0xa6f29830, 0x4c744552, 0xa326f3b3, 0x4208f9d7, 0xad5a4f36, + 0x47dc9254, 0xa88e24b5, 0x5ef180dd, 0xb1a3363c, 0x5b25eb5e, + 0xb4775dbf, 0x555957db, 0xba0be13a, 0x508d3c58, 0xbfdf8ab9, + 0x670372c9, 0x8851c428, 0x62d7194a, 0x8d85afab, 0x6caba5cf, + 0x83f9132e, 0x697fce4c, 0x862d78ad, 0x7052dcc5, 0x9f006a24, + 0x7586b746, 0x9ad401a7, 0x7bfa0bc3, 0x94a8bd22, 0x7e2e6040, + 0x917cd6a1}, + {0x00000000, 0x87a6cb43, 0xd43c90c7, 0x539a5b84, 0x730827cf, + 0xf4aeec8c, 0xa734b708, 0x20927c4b, 0xe6104f9e, 0x61b684dd, + 0x322cdf59, 0xb58a141a, 0x95186851, 0x12bea312, 0x4124f896, + 0xc68233d5, 0x1751997d, 0x90f7523e, 0xc36d09ba, 0x44cbc2f9, + 0x6459beb2, 0xe3ff75f1, 0xb0652e75, 0x37c3e536, 0xf141d6e3, + 0x76e71da0, 0x257d4624, 0xa2db8d67, 0x8249f12c, 0x05ef3a6f, + 0x567561eb, 0xd1d3aaa8, 0x2ea332fa, 0xa905f9b9, 0xfa9fa23d, + 0x7d39697e, 0x5dab1535, 0xda0dde76, 0x899785f2, 0x0e314eb1, + 0xc8b37d64, 0x4f15b627, 0x1c8feda3, 0x9b2926e0, 0xbbbb5aab, + 0x3c1d91e8, 0x6f87ca6c, 0xe821012f, 0x39f2ab87, 0xbe5460c4, + 0xedce3b40, 0x6a68f003, 0x4afa8c48, 0xcd5c470b, 0x9ec61c8f, + 0x1960d7cc, 0xdfe2e419, 0x58442f5a, 0x0bde74de, 0x8c78bf9d, + 0xaceac3d6, 0x2b4c0895, 0x78d65311, 0xff709852, 0x5d4665f4, + 0xdae0aeb7, 0x897af533, 0x0edc3e70, 0x2e4e423b, 0xa9e88978, + 0xfa72d2fc, 0x7dd419bf, 0xbb562a6a, 0x3cf0e129, 0x6f6abaad, + 0xe8cc71ee, 0xc85e0da5, 0x4ff8c6e6, 0x1c629d62, 0x9bc45621, + 0x4a17fc89, 0xcdb137ca, 0x9e2b6c4e, 0x198da70d, 0x391fdb46, + 0xbeb91005, 0xed234b81, 0x6a8580c2, 0xac07b317, 0x2ba17854, + 0x783b23d0, 0xff9de893, 0xdf0f94d8, 0x58a95f9b, 0x0b33041f, + 0x8c95cf5c, 0x73e5570e, 0xf4439c4d, 0xa7d9c7c9, 0x207f0c8a, + 0x00ed70c1, 0x874bbb82, 0xd4d1e006, 0x53772b45, 0x95f51890, + 0x1253d3d3, 0x41c98857, 0xc66f4314, 0xe6fd3f5f, 0x615bf41c, + 0x32c1af98, 0xb56764db, 0x64b4ce73, 0xe3120530, 0xb0885eb4, + 0x372e95f7, 0x17bce9bc, 0x901a22ff, 0xc380797b, 0x4426b238, + 0x82a481ed, 0x05024aae, 0x5698112a, 0xd13eda69, 0xf1aca622, + 0x760a6d61, 0x259036e5, 0xa236fda6, 0xba8ccbe8, 0x3d2a00ab, + 0x6eb05b2f, 0xe916906c, 0xc984ec27, 0x4e222764, 0x1db87ce0, + 0x9a1eb7a3, 0x5c9c8476, 0xdb3a4f35, 0x88a014b1, 0x0f06dff2, + 0x2f94a3b9, 0xa83268fa, 0xfba8337e, 0x7c0ef83d, 0xaddd5295, + 0x2a7b99d6, 0x79e1c252, 0xfe470911, 0xded5755a, 0x5973be19, + 0x0ae9e59d, 0x8d4f2ede, 0x4bcd1d0b, 0xcc6bd648, 0x9ff18dcc, + 0x1857468f, 0x38c53ac4, 0xbf63f187, 0xecf9aa03, 0x6b5f6140, + 0x942ff912, 0x13893251, 0x401369d5, 0xc7b5a296, 0xe727dedd, + 0x6081159e, 0x331b4e1a, 0xb4bd8559, 0x723fb68c, 0xf5997dcf, + 0xa603264b, 0x21a5ed08, 0x01379143, 0x86915a00, 0xd50b0184, + 0x52adcac7, 0x837e606f, 0x04d8ab2c, 0x5742f0a8, 0xd0e43beb, + 0xf07647a0, 0x77d08ce3, 0x244ad767, 0xa3ec1c24, 0x656e2ff1, + 0xe2c8e4b2, 0xb152bf36, 0x36f47475, 0x1666083e, 0x91c0c37d, + 0xc25a98f9, 0x45fc53ba, 0xe7caae1c, 0x606c655f, 0x33f63edb, + 0xb450f598, 0x94c289d3, 0x13644290, 0x40fe1914, 0xc758d257, + 0x01dae182, 0x867c2ac1, 0xd5e67145, 0x5240ba06, 0x72d2c64d, + 0xf5740d0e, 0xa6ee568a, 0x21489dc9, 0xf09b3761, 0x773dfc22, + 0x24a7a7a6, 0xa3016ce5, 0x839310ae, 0x0435dbed, 0x57af8069, + 0xd0094b2a, 0x168b78ff, 0x912db3bc, 0xc2b7e838, 0x4511237b, + 0x65835f30, 0xe2259473, 0xb1bfcff7, 0x361904b4, 0xc9699ce6, + 0x4ecf57a5, 0x1d550c21, 0x9af3c762, 0xba61bb29, 0x3dc7706a, + 0x6e5d2bee, 0xe9fbe0ad, 0x2f79d378, 0xa8df183b, 0xfb4543bf, + 0x7ce388fc, 0x5c71f4b7, 0xdbd73ff4, 0x884d6470, 0x0febaf33, + 0xde38059b, 0x599eced8, 0x0a04955c, 0x8da25e1f, 0xad302254, + 0x2a96e917, 0x790cb293, 0xfeaa79d0, 0x38284a05, 0xbf8e8146, + 0xec14dac2, 0x6bb21181, 0x4b206dca, 0xcc86a689, 0x9f1cfd0d, + 0x18ba364e}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0x43cba687, 0xc7903cd4, 0x845b9a53, 0xcf270873, + 0x8cecaef4, 0x08b734a7, 0x4b7c9220, 0x9e4f10e6, 0xdd84b661, + 0x59df2c32, 0x1a148ab5, 0x51681895, 0x12a3be12, 0x96f82441, + 0xd53382c6, 0x7d995117, 0x3e52f790, 0xba096dc3, 0xf9c2cb44, + 0xb2be5964, 0xf175ffe3, 0x752e65b0, 0x36e5c337, 0xe3d641f1, + 0xa01de776, 0x24467d25, 0x678ddba2, 0x2cf14982, 0x6f3aef05, + 0xeb617556, 0xa8aad3d1, 0xfa32a32e, 0xb9f905a9, 0x3da29ffa, + 0x7e69397d, 0x3515ab5d, 0x76de0dda, 0xf2859789, 0xb14e310e, + 0x647db3c8, 0x27b6154f, 0xa3ed8f1c, 0xe026299b, 0xab5abbbb, + 0xe8911d3c, 0x6cca876f, 0x2f0121e8, 0x87abf239, 0xc46054be, + 0x403bceed, 0x03f0686a, 0x488cfa4a, 0x0b475ccd, 0x8f1cc69e, + 0xccd76019, 0x19e4e2df, 0x5a2f4458, 0xde74de0b, 0x9dbf788c, + 0xd6c3eaac, 0x95084c2b, 0x1153d678, 0x529870ff, 0xf465465d, + 0xb7aee0da, 0x33f57a89, 0x703edc0e, 0x3b424e2e, 0x7889e8a9, + 0xfcd272fa, 0xbf19d47d, 0x6a2a56bb, 0x29e1f03c, 0xadba6a6f, + 0xee71cce8, 0xa50d5ec8, 0xe6c6f84f, 0x629d621c, 0x2156c49b, + 0x89fc174a, 0xca37b1cd, 0x4e6c2b9e, 0x0da78d19, 0x46db1f39, + 0x0510b9be, 0x814b23ed, 0xc280856a, 0x17b307ac, 0x5478a12b, + 0xd0233b78, 0x93e89dff, 0xd8940fdf, 0x9b5fa958, 0x1f04330b, + 0x5ccf958c, 0x0e57e573, 0x4d9c43f4, 0xc9c7d9a7, 0x8a0c7f20, + 0xc170ed00, 0x82bb4b87, 0x06e0d1d4, 0x452b7753, 0x9018f595, + 0xd3d35312, 0x5788c941, 0x14436fc6, 0x5f3ffde6, 0x1cf45b61, + 0x98afc132, 0xdb6467b5, 0x73ceb464, 0x300512e3, 0xb45e88b0, + 0xf7952e37, 0xbce9bc17, 0xff221a90, 0x7b7980c3, 0x38b22644, + 0xed81a482, 0xae4a0205, 0x2a119856, 0x69da3ed1, 0x22a6acf1, + 0x616d0a76, 0xe5369025, 0xa6fd36a2, 0xe8cb8cba, 0xab002a3d, + 0x2f5bb06e, 0x6c9016e9, 0x27ec84c9, 0x6427224e, 0xe07cb81d, + 0xa3b71e9a, 0x76849c5c, 0x354f3adb, 0xb114a088, 0xf2df060f, + 0xb9a3942f, 0xfa6832a8, 0x7e33a8fb, 0x3df80e7c, 0x9552ddad, + 0xd6997b2a, 0x52c2e179, 0x110947fe, 0x5a75d5de, 0x19be7359, + 0x9de5e90a, 0xde2e4f8d, 0x0b1dcd4b, 0x48d66bcc, 0xcc8df19f, + 0x8f465718, 0xc43ac538, 0x87f163bf, 0x03aaf9ec, 0x40615f6b, + 0x12f92f94, 0x51328913, 0xd5691340, 0x96a2b5c7, 0xddde27e7, + 0x9e158160, 0x1a4e1b33, 0x5985bdb4, 0x8cb63f72, 0xcf7d99f5, + 0x4b2603a6, 0x08eda521, 0x43913701, 0x005a9186, 0x84010bd5, + 0xc7caad52, 0x6f607e83, 0x2cabd804, 0xa8f04257, 0xeb3be4d0, + 0xa04776f0, 0xe38cd077, 0x67d74a24, 0x241ceca3, 0xf12f6e65, + 0xb2e4c8e2, 0x36bf52b1, 0x7574f436, 0x3e086616, 0x7dc3c091, + 0xf9985ac2, 0xba53fc45, 0x1caecae7, 0x5f656c60, 0xdb3ef633, + 0x98f550b4, 0xd389c294, 0x90426413, 0x1419fe40, 0x57d258c7, + 0x82e1da01, 0xc12a7c86, 0x4571e6d5, 0x06ba4052, 0x4dc6d272, + 0x0e0d74f5, 0x8a56eea6, 0xc99d4821, 0x61379bf0, 0x22fc3d77, + 0xa6a7a724, 0xe56c01a3, 0xae109383, 0xeddb3504, 0x6980af57, + 0x2a4b09d0, 0xff788b16, 0xbcb32d91, 0x38e8b7c2, 0x7b231145, + 0x305f8365, 0x739425e2, 0xf7cfbfb1, 0xb4041936, 0xe69c69c9, + 0xa557cf4e, 0x210c551d, 0x62c7f39a, 0x29bb61ba, 0x6a70c73d, + 0xee2b5d6e, 0xade0fbe9, 0x78d3792f, 0x3b18dfa8, 0xbf4345fb, + 0xfc88e37c, 0xb7f4715c, 0xf43fd7db, 0x70644d88, 0x33afeb0f, + 0x9b0538de, 0xd8ce9e59, 0x5c95040a, 0x1f5ea28d, 0x542230ad, + 0x17e9962a, 0x93b20c79, 0xd079aafe, 0x054a2838, 0x46818ebf, + 0xc2da14ec, 0x8111b26b, 0xca6d204b, 0x89a686cc, 0x0dfd1c9f, + 0x4e36ba18}, + {0x00000000, 0xe1b652ef, 0x836bd405, 0x62dd86ea, 0x06d7a80b, + 0xe761fae4, 0x85bc7c0e, 0x640a2ee1, 0x0cae5117, 0xed1803f8, + 0x8fc58512, 0x6e73d7fd, 0x0a79f91c, 0xebcfabf3, 0x89122d19, + 0x68a47ff6, 0x185ca32e, 0xf9eaf1c1, 0x9b37772b, 0x7a8125c4, + 0x1e8b0b25, 0xff3d59ca, 0x9de0df20, 0x7c568dcf, 0x14f2f239, + 0xf544a0d6, 0x9799263c, 0x762f74d3, 0x12255a32, 0xf39308dd, + 0x914e8e37, 0x70f8dcd8, 0x30b8465d, 0xd10e14b2, 0xb3d39258, + 0x5265c0b7, 0x366fee56, 0xd7d9bcb9, 0xb5043a53, 0x54b268bc, + 0x3c16174a, 0xdda045a5, 0xbf7dc34f, 0x5ecb91a0, 0x3ac1bf41, + 0xdb77edae, 0xb9aa6b44, 0x581c39ab, 0x28e4e573, 0xc952b79c, + 0xab8f3176, 0x4a396399, 0x2e334d78, 0xcf851f97, 0xad58997d, + 0x4ceecb92, 0x244ab464, 0xc5fce68b, 0xa7216061, 0x4697328e, + 0x229d1c6f, 0xc32b4e80, 0xa1f6c86a, 0x40409a85, 0x60708dba, + 0x81c6df55, 0xe31b59bf, 0x02ad0b50, 0x66a725b1, 0x8711775e, + 0xe5ccf1b4, 0x047aa35b, 0x6cdedcad, 0x8d688e42, 0xefb508a8, + 0x0e035a47, 0x6a0974a6, 0x8bbf2649, 0xe962a0a3, 0x08d4f24c, + 0x782c2e94, 0x999a7c7b, 0xfb47fa91, 0x1af1a87e, 0x7efb869f, + 0x9f4dd470, 0xfd90529a, 0x1c260075, 0x74827f83, 0x95342d6c, + 0xf7e9ab86, 0x165ff969, 0x7255d788, 0x93e38567, 0xf13e038d, + 0x10885162, 0x50c8cbe7, 0xb17e9908, 0xd3a31fe2, 0x32154d0d, + 0x561f63ec, 0xb7a93103, 0xd574b7e9, 0x34c2e506, 0x5c669af0, + 0xbdd0c81f, 0xdf0d4ef5, 0x3ebb1c1a, 0x5ab132fb, 0xbb076014, + 0xd9dae6fe, 0x386cb411, 0x489468c9, 0xa9223a26, 0xcbffbccc, + 0x2a49ee23, 0x4e43c0c2, 0xaff5922d, 0xcd2814c7, 0x2c9e4628, + 0x443a39de, 0xa58c6b31, 0xc751eddb, 0x26e7bf34, 0x42ed91d5, + 0xa35bc33a, 0xc18645d0, 0x2030173f, 0x81e66bae, 0x60503941, + 0x028dbfab, 0xe33bed44, 0x8731c3a5, 0x6687914a, 0x045a17a0, + 0xe5ec454f, 0x8d483ab9, 0x6cfe6856, 0x0e23eebc, 0xef95bc53, + 0x8b9f92b2, 0x6a29c05d, 0x08f446b7, 0xe9421458, 0x99bac880, + 0x780c9a6f, 0x1ad11c85, 0xfb674e6a, 0x9f6d608b, 0x7edb3264, + 0x1c06b48e, 0xfdb0e661, 0x95149997, 0x74a2cb78, 0x167f4d92, + 0xf7c91f7d, 0x93c3319c, 0x72756373, 0x10a8e599, 0xf11eb776, + 0xb15e2df3, 0x50e87f1c, 0x3235f9f6, 0xd383ab19, 0xb78985f8, + 0x563fd717, 0x34e251fd, 0xd5540312, 0xbdf07ce4, 0x5c462e0b, + 0x3e9ba8e1, 0xdf2dfa0e, 0xbb27d4ef, 0x5a918600, 0x384c00ea, + 0xd9fa5205, 0xa9028edd, 0x48b4dc32, 0x2a695ad8, 0xcbdf0837, + 0xafd526d6, 0x4e637439, 0x2cbef2d3, 0xcd08a03c, 0xa5acdfca, + 0x441a8d25, 0x26c70bcf, 0xc7715920, 0xa37b77c1, 0x42cd252e, + 0x2010a3c4, 0xc1a6f12b, 0xe196e614, 0x0020b4fb, 0x62fd3211, + 0x834b60fe, 0xe7414e1f, 0x06f71cf0, 0x642a9a1a, 0x859cc8f5, + 0xed38b703, 0x0c8ee5ec, 0x6e536306, 0x8fe531e9, 0xebef1f08, + 0x0a594de7, 0x6884cb0d, 0x893299e2, 0xf9ca453a, 0x187c17d5, + 0x7aa1913f, 0x9b17c3d0, 0xff1ded31, 0x1eabbfde, 0x7c763934, + 0x9dc06bdb, 0xf564142d, 0x14d246c2, 0x760fc028, 0x97b992c7, + 0xf3b3bc26, 0x1205eec9, 0x70d86823, 0x916e3acc, 0xd12ea049, + 0x3098f2a6, 0x5245744c, 0xb3f326a3, 0xd7f90842, 0x364f5aad, + 0x5492dc47, 0xb5248ea8, 0xdd80f15e, 0x3c36a3b1, 0x5eeb255b, + 0xbf5d77b4, 0xdb575955, 0x3ae10bba, 0x583c8d50, 0xb98adfbf, + 0xc9720367, 0x28c45188, 0x4a19d762, 0xabaf858d, 0xcfa5ab6c, + 0x2e13f983, 0x4cce7f69, 0xad782d86, 0xc5dc5270, 0x246a009f, + 0x46b78675, 0xa701d49a, 0xc30bfa7b, 0x22bda894, 0x40602e7e, + 0xa1d67c91}, + {0x00000000, 0x5880e2d7, 0xf106b474, 0xa98656a3, 0xe20d68e9, + 0xba8d8a3e, 0x130bdc9d, 0x4b8b3e4a, 0x851da109, 0xdd9d43de, + 0x741b157d, 0x2c9bf7aa, 0x6710c9e0, 0x3f902b37, 0x96167d94, + 0xce969f43, 0x0a3b4213, 0x52bba0c4, 0xfb3df667, 0xa3bd14b0, + 0xe8362afa, 0xb0b6c82d, 0x19309e8e, 0x41b07c59, 0x8f26e31a, + 0xd7a601cd, 0x7e20576e, 0x26a0b5b9, 0x6d2b8bf3, 0x35ab6924, + 0x9c2d3f87, 0xc4addd50, 0x14768426, 0x4cf666f1, 0xe5703052, + 0xbdf0d285, 0xf67beccf, 0xaefb0e18, 0x077d58bb, 0x5ffdba6c, + 0x916b252f, 0xc9ebc7f8, 0x606d915b, 0x38ed738c, 0x73664dc6, + 0x2be6af11, 0x8260f9b2, 0xdae01b65, 0x1e4dc635, 0x46cd24e2, + 0xef4b7241, 0xb7cb9096, 0xfc40aedc, 0xa4c04c0b, 0x0d461aa8, + 0x55c6f87f, 0x9b50673c, 0xc3d085eb, 0x6a56d348, 0x32d6319f, + 0x795d0fd5, 0x21dded02, 0x885bbba1, 0xd0db5976, 0x28ec084d, + 0x706cea9a, 0xd9eabc39, 0x816a5eee, 0xcae160a4, 0x92618273, + 0x3be7d4d0, 0x63673607, 0xadf1a944, 0xf5714b93, 0x5cf71d30, + 0x0477ffe7, 0x4ffcc1ad, 0x177c237a, 0xbefa75d9, 0xe67a970e, + 0x22d74a5e, 0x7a57a889, 0xd3d1fe2a, 0x8b511cfd, 0xc0da22b7, + 0x985ac060, 0x31dc96c3, 0x695c7414, 0xa7caeb57, 0xff4a0980, + 0x56cc5f23, 0x0e4cbdf4, 0x45c783be, 0x1d476169, 0xb4c137ca, + 0xec41d51d, 0x3c9a8c6b, 0x641a6ebc, 0xcd9c381f, 0x951cdac8, + 0xde97e482, 0x86170655, 0x2f9150f6, 0x7711b221, 0xb9872d62, + 0xe107cfb5, 0x48819916, 0x10017bc1, 0x5b8a458b, 0x030aa75c, + 0xaa8cf1ff, 0xf20c1328, 0x36a1ce78, 0x6e212caf, 0xc7a77a0c, + 0x9f2798db, 0xd4aca691, 0x8c2c4446, 0x25aa12e5, 0x7d2af032, + 0xb3bc6f71, 0xeb3c8da6, 0x42badb05, 0x1a3a39d2, 0x51b10798, + 0x0931e54f, 0xa0b7b3ec, 0xf837513b, 0x50d8119a, 0x0858f34d, + 0xa1dea5ee, 0xf95e4739, 0xb2d57973, 0xea559ba4, 0x43d3cd07, + 0x1b532fd0, 0xd5c5b093, 0x8d455244, 0x24c304e7, 0x7c43e630, + 0x37c8d87a, 0x6f483aad, 0xc6ce6c0e, 0x9e4e8ed9, 0x5ae35389, + 0x0263b15e, 0xabe5e7fd, 0xf365052a, 0xb8ee3b60, 0xe06ed9b7, + 0x49e88f14, 0x11686dc3, 0xdffef280, 0x877e1057, 0x2ef846f4, + 0x7678a423, 0x3df39a69, 0x657378be, 0xccf52e1d, 0x9475ccca, + 0x44ae95bc, 0x1c2e776b, 0xb5a821c8, 0xed28c31f, 0xa6a3fd55, + 0xfe231f82, 0x57a54921, 0x0f25abf6, 0xc1b334b5, 0x9933d662, + 0x30b580c1, 0x68356216, 0x23be5c5c, 0x7b3ebe8b, 0xd2b8e828, + 0x8a380aff, 0x4e95d7af, 0x16153578, 0xbf9363db, 0xe713810c, + 0xac98bf46, 0xf4185d91, 0x5d9e0b32, 0x051ee9e5, 0xcb8876a6, + 0x93089471, 0x3a8ec2d2, 0x620e2005, 0x29851e4f, 0x7105fc98, + 0xd883aa3b, 0x800348ec, 0x783419d7, 0x20b4fb00, 0x8932ada3, + 0xd1b24f74, 0x9a39713e, 0xc2b993e9, 0x6b3fc54a, 0x33bf279d, + 0xfd29b8de, 0xa5a95a09, 0x0c2f0caa, 0x54afee7d, 0x1f24d037, + 0x47a432e0, 0xee226443, 0xb6a28694, 0x720f5bc4, 0x2a8fb913, + 0x8309efb0, 0xdb890d67, 0x9002332d, 0xc882d1fa, 0x61048759, + 0x3984658e, 0xf712facd, 0xaf92181a, 0x06144eb9, 0x5e94ac6e, + 0x151f9224, 0x4d9f70f3, 0xe4192650, 0xbc99c487, 0x6c429df1, + 0x34c27f26, 0x9d442985, 0xc5c4cb52, 0x8e4ff518, 0xd6cf17cf, + 0x7f49416c, 0x27c9a3bb, 0xe95f3cf8, 0xb1dfde2f, 0x1859888c, + 0x40d96a5b, 0x0b525411, 0x53d2b6c6, 0xfa54e065, 0xa2d402b2, + 0x6679dfe2, 0x3ef93d35, 0x977f6b96, 0xcfff8941, 0x8474b70b, + 0xdcf455dc, 0x7572037f, 0x2df2e1a8, 0xe3647eeb, 0xbbe49c3c, + 0x1262ca9f, 0x4ae22848, 0x01691602, 0x59e9f4d5, 0xf06fa276, + 0xa8ef40a1}, + {0x00000000, 0x463b6765, 0x8c76ceca, 0xca4da9af, 0x59ebed4e, + 0x1fd08a2b, 0xd59d2384, 0x93a644e1, 0xb2d6db9d, 0xf4edbcf8, + 0x3ea01557, 0x789b7232, 0xeb3d36d3, 0xad0651b6, 0x674bf819, + 0x21709f7c, 0x25abc6e0, 0x6390a185, 0xa9dd082a, 0xefe66f4f, + 0x7c402bae, 0x3a7b4ccb, 0xf036e564, 0xb60d8201, 0x977d1d7d, + 0xd1467a18, 0x1b0bd3b7, 0x5d30b4d2, 0xce96f033, 0x88ad9756, + 0x42e03ef9, 0x04db599c, 0x0b50fc1a, 0x4d6b9b7f, 0x872632d0, + 0xc11d55b5, 0x52bb1154, 0x14807631, 0xdecddf9e, 0x98f6b8fb, + 0xb9862787, 0xffbd40e2, 0x35f0e94d, 0x73cb8e28, 0xe06dcac9, + 0xa656adac, 0x6c1b0403, 0x2a206366, 0x2efb3afa, 0x68c05d9f, + 0xa28df430, 0xe4b69355, 0x7710d7b4, 0x312bb0d1, 0xfb66197e, + 0xbd5d7e1b, 0x9c2de167, 0xda168602, 0x105b2fad, 0x566048c8, + 0xc5c60c29, 0x83fd6b4c, 0x49b0c2e3, 0x0f8ba586, 0x16a0f835, + 0x509b9f50, 0x9ad636ff, 0xdced519a, 0x4f4b157b, 0x0970721e, + 0xc33ddbb1, 0x8506bcd4, 0xa47623a8, 0xe24d44cd, 0x2800ed62, + 0x6e3b8a07, 0xfd9dcee6, 0xbba6a983, 0x71eb002c, 0x37d06749, + 0x330b3ed5, 0x753059b0, 0xbf7df01f, 0xf946977a, 0x6ae0d39b, + 0x2cdbb4fe, 0xe6961d51, 0xa0ad7a34, 0x81dde548, 0xc7e6822d, + 0x0dab2b82, 0x4b904ce7, 0xd8360806, 0x9e0d6f63, 0x5440c6cc, + 0x127ba1a9, 0x1df0042f, 0x5bcb634a, 0x9186cae5, 0xd7bdad80, + 0x441be961, 0x02208e04, 0xc86d27ab, 0x8e5640ce, 0xaf26dfb2, + 0xe91db8d7, 0x23501178, 0x656b761d, 0xf6cd32fc, 0xb0f65599, + 0x7abbfc36, 0x3c809b53, 0x385bc2cf, 0x7e60a5aa, 0xb42d0c05, + 0xf2166b60, 0x61b02f81, 0x278b48e4, 0xedc6e14b, 0xabfd862e, + 0x8a8d1952, 0xccb67e37, 0x06fbd798, 0x40c0b0fd, 0xd366f41c, + 0x955d9379, 0x5f103ad6, 0x192b5db3, 0x2c40f16b, 0x6a7b960e, + 0xa0363fa1, 0xe60d58c4, 0x75ab1c25, 0x33907b40, 0xf9ddd2ef, + 0xbfe6b58a, 0x9e962af6, 0xd8ad4d93, 0x12e0e43c, 0x54db8359, + 0xc77dc7b8, 0x8146a0dd, 0x4b0b0972, 0x0d306e17, 0x09eb378b, + 0x4fd050ee, 0x859df941, 0xc3a69e24, 0x5000dac5, 0x163bbda0, + 0xdc76140f, 0x9a4d736a, 0xbb3dec16, 0xfd068b73, 0x374b22dc, + 0x717045b9, 0xe2d60158, 0xa4ed663d, 0x6ea0cf92, 0x289ba8f7, + 0x27100d71, 0x612b6a14, 0xab66c3bb, 0xed5da4de, 0x7efbe03f, + 0x38c0875a, 0xf28d2ef5, 0xb4b64990, 0x95c6d6ec, 0xd3fdb189, + 0x19b01826, 0x5f8b7f43, 0xcc2d3ba2, 0x8a165cc7, 0x405bf568, + 0x0660920d, 0x02bbcb91, 0x4480acf4, 0x8ecd055b, 0xc8f6623e, + 0x5b5026df, 0x1d6b41ba, 0xd726e815, 0x911d8f70, 0xb06d100c, + 0xf6567769, 0x3c1bdec6, 0x7a20b9a3, 0xe986fd42, 0xafbd9a27, + 0x65f03388, 0x23cb54ed, 0x3ae0095e, 0x7cdb6e3b, 0xb696c794, + 0xf0ada0f1, 0x630be410, 0x25308375, 0xef7d2ada, 0xa9464dbf, + 0x8836d2c3, 0xce0db5a6, 0x04401c09, 0x427b7b6c, 0xd1dd3f8d, + 0x97e658e8, 0x5dabf147, 0x1b909622, 0x1f4bcfbe, 0x5970a8db, + 0x933d0174, 0xd5066611, 0x46a022f0, 0x009b4595, 0xcad6ec3a, + 0x8ced8b5f, 0xad9d1423, 0xeba67346, 0x21ebdae9, 0x67d0bd8c, + 0xf476f96d, 0xb24d9e08, 0x780037a7, 0x3e3b50c2, 0x31b0f544, + 0x778b9221, 0xbdc63b8e, 0xfbfd5ceb, 0x685b180a, 0x2e607f6f, + 0xe42dd6c0, 0xa216b1a5, 0x83662ed9, 0xc55d49bc, 0x0f10e013, + 0x492b8776, 0xda8dc397, 0x9cb6a4f2, 0x56fb0d5d, 0x10c06a38, + 0x141b33a4, 0x522054c1, 0x986dfd6e, 0xde569a0b, 0x4df0deea, + 0x0bcbb98f, 0xc1861020, 0x87bd7745, 0xa6cde839, 0xe0f68f5c, + 0x2abb26f3, 0x6c804196, 0xff260577, 0xb91d6212, 0x7350cbbd, + 0x356bacd8}}; + +#endif + +#endif + +#if N == 6 + +#if W == 8 + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0x3db1ecdc, 0x7b63d9b8, 0x46d23564, 0xf6c7b370, + 0xcb765fac, 0x8da46ac8, 0xb0158614, 0x36fe60a1, 0x0b4f8c7d, + 0x4d9db919, 0x702c55c5, 0xc039d3d1, 0xfd883f0d, 0xbb5a0a69, + 0x86ebe6b5, 0x6dfcc142, 0x504d2d9e, 0x169f18fa, 0x2b2ef426, + 0x9b3b7232, 0xa68a9eee, 0xe058ab8a, 0xdde94756, 0x5b02a1e3, + 0x66b34d3f, 0x2061785b, 0x1dd09487, 0xadc51293, 0x9074fe4f, + 0xd6a6cb2b, 0xeb1727f7, 0xdbf98284, 0xe6486e58, 0xa09a5b3c, + 0x9d2bb7e0, 0x2d3e31f4, 0x108fdd28, 0x565de84c, 0x6bec0490, + 0xed07e225, 0xd0b60ef9, 0x96643b9d, 0xabd5d741, 0x1bc05155, + 0x2671bd89, 0x60a388ed, 0x5d126431, 0xb60543c6, 0x8bb4af1a, + 0xcd669a7e, 0xf0d776a2, 0x40c2f0b6, 0x7d731c6a, 0x3ba1290e, + 0x0610c5d2, 0x80fb2367, 0xbd4acfbb, 0xfb98fadf, 0xc6291603, + 0x763c9017, 0x4b8d7ccb, 0x0d5f49af, 0x30eea573, 0x6c820349, + 0x5133ef95, 0x17e1daf1, 0x2a50362d, 0x9a45b039, 0xa7f45ce5, + 0xe1266981, 0xdc97855d, 0x5a7c63e8, 0x67cd8f34, 0x211fba50, + 0x1cae568c, 0xacbbd098, 0x910a3c44, 0xd7d80920, 0xea69e5fc, + 0x017ec20b, 0x3ccf2ed7, 0x7a1d1bb3, 0x47acf76f, 0xf7b9717b, + 0xca089da7, 0x8cdaa8c3, 0xb16b441f, 0x3780a2aa, 0x0a314e76, + 0x4ce37b12, 0x715297ce, 0xc14711da, 0xfcf6fd06, 0xba24c862, + 0x879524be, 0xb77b81cd, 0x8aca6d11, 0xcc185875, 0xf1a9b4a9, + 0x41bc32bd, 0x7c0dde61, 0x3adfeb05, 0x076e07d9, 0x8185e16c, + 0xbc340db0, 0xfae638d4, 0xc757d408, 0x7742521c, 0x4af3bec0, + 0x0c218ba4, 0x31906778, 0xda87408f, 0xe736ac53, 0xa1e49937, + 0x9c5575eb, 0x2c40f3ff, 0x11f11f23, 0x57232a47, 0x6a92c69b, + 0xec79202e, 0xd1c8ccf2, 0x971af996, 0xaaab154a, 0x1abe935e, + 0x270f7f82, 0x61dd4ae6, 0x5c6ca63a, 0xd9040692, 0xe4b5ea4e, + 0xa267df2a, 0x9fd633f6, 0x2fc3b5e2, 0x1272593e, 0x54a06c5a, + 0x69118086, 0xeffa6633, 0xd24b8aef, 0x9499bf8b, 0xa9285357, + 0x193dd543, 0x248c399f, 0x625e0cfb, 0x5fefe027, 0xb4f8c7d0, + 0x89492b0c, 0xcf9b1e68, 0xf22af2b4, 0x423f74a0, 0x7f8e987c, + 0x395cad18, 0x04ed41c4, 0x8206a771, 0xbfb74bad, 0xf9657ec9, + 0xc4d49215, 0x74c11401, 0x4970f8dd, 0x0fa2cdb9, 0x32132165, + 0x02fd8416, 0x3f4c68ca, 0x799e5dae, 0x442fb172, 0xf43a3766, + 0xc98bdbba, 0x8f59eede, 0xb2e80202, 0x3403e4b7, 0x09b2086b, + 0x4f603d0f, 0x72d1d1d3, 0xc2c457c7, 0xff75bb1b, 0xb9a78e7f, + 0x841662a3, 0x6f014554, 0x52b0a988, 0x14629cec, 0x29d37030, + 0x99c6f624, 0xa4771af8, 0xe2a52f9c, 0xdf14c340, 0x59ff25f5, + 0x644ec929, 0x229cfc4d, 0x1f2d1091, 0xaf389685, 0x92897a59, + 0xd45b4f3d, 0xe9eaa3e1, 0xb58605db, 0x8837e907, 0xcee5dc63, + 0xf35430bf, 0x4341b6ab, 0x7ef05a77, 0x38226f13, 0x059383cf, + 0x8378657a, 0xbec989a6, 0xf81bbcc2, 0xc5aa501e, 0x75bfd60a, + 0x480e3ad6, 0x0edc0fb2, 0x336de36e, 0xd87ac499, 0xe5cb2845, + 0xa3191d21, 0x9ea8f1fd, 0x2ebd77e9, 0x130c9b35, 0x55deae51, + 0x686f428d, 0xee84a438, 0xd33548e4, 0x95e77d80, 0xa856915c, + 0x18431748, 0x25f2fb94, 0x6320cef0, 0x5e91222c, 0x6e7f875f, + 0x53ce6b83, 0x151c5ee7, 0x28adb23b, 0x98b8342f, 0xa509d8f3, + 0xe3dbed97, 0xde6a014b, 0x5881e7fe, 0x65300b22, 0x23e23e46, + 0x1e53d29a, 0xae46548e, 0x93f7b852, 0xd5258d36, 0xe89461ea, + 0x0383461d, 0x3e32aac1, 0x78e09fa5, 0x45517379, 0xf544f56d, + 0xc8f519b1, 0x8e272cd5, 0xb396c009, 0x357d26bc, 0x08ccca60, + 0x4e1eff04, 0x73af13d8, 0xc3ba95cc, 0xfe0b7910, 0xb8d94c74, + 0x8568a0a8}, + {0x00000000, 0x69790b65, 0xd2f216ca, 0xbb8b1daf, 0x7e952bd5, + 0x17ec20b0, 0xac673d1f, 0xc51e367a, 0xfd2a57aa, 0x94535ccf, + 0x2fd84160, 0x46a14a05, 0x83bf7c7f, 0xeac6771a, 0x514d6ab5, + 0x383461d0, 0x2125a915, 0x485ca270, 0xf3d7bfdf, 0x9aaeb4ba, + 0x5fb082c0, 0x36c989a5, 0x8d42940a, 0xe43b9f6f, 0xdc0ffebf, + 0xb576f5da, 0x0efde875, 0x6784e310, 0xa29ad56a, 0xcbe3de0f, + 0x7068c3a0, 0x1911c8c5, 0x424b522a, 0x2b32594f, 0x90b944e0, + 0xf9c04f85, 0x3cde79ff, 0x55a7729a, 0xee2c6f35, 0x87556450, + 0xbf610580, 0xd6180ee5, 0x6d93134a, 0x04ea182f, 0xc1f42e55, + 0xa88d2530, 0x1306389f, 0x7a7f33fa, 0x636efb3f, 0x0a17f05a, + 0xb19cedf5, 0xd8e5e690, 0x1dfbd0ea, 0x7482db8f, 0xcf09c620, + 0xa670cd45, 0x9e44ac95, 0xf73da7f0, 0x4cb6ba5f, 0x25cfb13a, + 0xe0d18740, 0x89a88c25, 0x3223918a, 0x5b5a9aef, 0x8496a454, + 0xedefaf31, 0x5664b29e, 0x3f1db9fb, 0xfa038f81, 0x937a84e4, + 0x28f1994b, 0x4188922e, 0x79bcf3fe, 0x10c5f89b, 0xab4ee534, + 0xc237ee51, 0x0729d82b, 0x6e50d34e, 0xd5dbcee1, 0xbca2c584, + 0xa5b30d41, 0xccca0624, 0x77411b8b, 0x1e3810ee, 0xdb262694, + 0xb25f2df1, 0x09d4305e, 0x60ad3b3b, 0x58995aeb, 0x31e0518e, + 0x8a6b4c21, 0xe3124744, 0x260c713e, 0x4f757a5b, 0xf4fe67f4, + 0x9d876c91, 0xc6ddf67e, 0xafa4fd1b, 0x142fe0b4, 0x7d56ebd1, + 0xb848ddab, 0xd131d6ce, 0x6abacb61, 0x03c3c004, 0x3bf7a1d4, + 0x528eaab1, 0xe905b71e, 0x807cbc7b, 0x45628a01, 0x2c1b8164, + 0x97909ccb, 0xfee997ae, 0xe7f85f6b, 0x8e81540e, 0x350a49a1, + 0x5c7342c4, 0x996d74be, 0xf0147fdb, 0x4b9f6274, 0x22e66911, + 0x1ad208c1, 0x73ab03a4, 0xc8201e0b, 0xa159156e, 0x64472314, + 0x0d3e2871, 0xb6b535de, 0xdfcc3ebb, 0xd25c4ee9, 0xbb25458c, + 0x00ae5823, 0x69d75346, 0xacc9653c, 0xc5b06e59, 0x7e3b73f6, + 0x17427893, 0x2f761943, 0x460f1226, 0xfd840f89, 0x94fd04ec, + 0x51e33296, 0x389a39f3, 0x8311245c, 0xea682f39, 0xf379e7fc, + 0x9a00ec99, 0x218bf136, 0x48f2fa53, 0x8deccc29, 0xe495c74c, + 0x5f1edae3, 0x3667d186, 0x0e53b056, 0x672abb33, 0xdca1a69c, + 0xb5d8adf9, 0x70c69b83, 0x19bf90e6, 0xa2348d49, 0xcb4d862c, + 0x90171cc3, 0xf96e17a6, 0x42e50a09, 0x2b9c016c, 0xee823716, + 0x87fb3c73, 0x3c7021dc, 0x55092ab9, 0x6d3d4b69, 0x0444400c, + 0xbfcf5da3, 0xd6b656c6, 0x13a860bc, 0x7ad16bd9, 0xc15a7676, + 0xa8237d13, 0xb132b5d6, 0xd84bbeb3, 0x63c0a31c, 0x0ab9a879, + 0xcfa79e03, 0xa6de9566, 0x1d5588c9, 0x742c83ac, 0x4c18e27c, + 0x2561e919, 0x9eeaf4b6, 0xf793ffd3, 0x328dc9a9, 0x5bf4c2cc, + 0xe07fdf63, 0x8906d406, 0x56caeabd, 0x3fb3e1d8, 0x8438fc77, + 0xed41f712, 0x285fc168, 0x4126ca0d, 0xfaadd7a2, 0x93d4dcc7, + 0xabe0bd17, 0xc299b672, 0x7912abdd, 0x106ba0b8, 0xd57596c2, + 0xbc0c9da7, 0x07878008, 0x6efe8b6d, 0x77ef43a8, 0x1e9648cd, + 0xa51d5562, 0xcc645e07, 0x097a687d, 0x60036318, 0xdb887eb7, + 0xb2f175d2, 0x8ac51402, 0xe3bc1f67, 0x583702c8, 0x314e09ad, + 0xf4503fd7, 0x9d2934b2, 0x26a2291d, 0x4fdb2278, 0x1481b897, + 0x7df8b3f2, 0xc673ae5d, 0xaf0aa538, 0x6a149342, 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0x4d78f963, 0x3300b1c5, 0x192889a7, 0x45c0e5d8, + 0x6fe8ddba, 0x1190951c, 0x3bb8ad7e, 0xed600450, 0xc7483c32, + 0xb9307494, 0x93184cf6, 0x00e0ac6a, 0x2ac89408, 0x54b0dcae, + 0x7e98e4cc, 0xa8404de2, 0x82687580, 0xfc103d26, 0xd6380544, + 0x8ad0693b, 0xa0f85159, 0xde8019ff, 0xf4a8219d, 0x227088b3, + 0x0858b0d1, 0x7620f877, 0x5c08c015, 0xce31785d, 0xe419403f, + 0x9a610899, 0xb04930fb, 0x669199d5, 0x4cb9a1b7, 0x32c1e911, + 0x18e9d173, 0x4401bd0c, 0x6e29856e, 0x1051cdc8, 0x3a79f5aa, + 0xeca15c84, 0xc68964e6, 0xb8f12c40, 0x92d91422, 0x0121f4be, + 0x2b09ccdc, 0x5571847a, 0x7f59bc18, 0xa9811536, 0x83a92d54, + 0xfdd165f2, 0xd7f95d90, 0x8b1131ef, 0xa139098d, 0xdf41412b, + 0xf5697949, 0x23b1d067, 0x0999e805, 0x77e1a0a3, 0x5dc998c1, + 0x8b6167da, 0xa1495fb8, 0xdf31171e, 0xf5192f7c, 0x23c18652, + 0x09e9be30, 0x7791f696, 0x5db9cef4, 0x0151a28b, 0x2b799ae9, + 0x5501d24f, 0x7f29ea2d, 0xa9f14303, 0x83d97b61, 0xfda133c7, + 0xd7890ba5, 0x4471eb39, 0x6e59d35b, 0x10219bfd, 0x3a09a39f, + 0xecd10ab1, 0xc6f932d3, 0xb8817a75, 0x92a94217, 0xce412e68, + 0xe469160a, 0x9a115eac, 0xb03966ce, 0x66e1cfe0, 0x4cc9f782, + 0x32b1bf24, 0x18998746, 0x44914753, 0x6eb97f31, 0x10c13797, + 0x3ae90ff5, 0xec31a6db, 0xc6199eb9, 0xb861d61f, 0x9249ee7d, + 0xcea18202, 0xe489ba60, 0x9af1f2c6, 0xb0d9caa4, 0x6601638a, + 0x4c295be8, 0x3251134e, 0x18792b2c, 0x8b81cbb0, 0xa1a9f3d2, + 0xdfd1bb74, 0xf5f98316, 0x23212a38, 0x0909125a, 0x77715afc, + 0x5d59629e, 0x01b10ee1, 0x2b993683, 0x55e17e25, 0x7fc94647, + 0xa911ef69, 0x8339d70b, 0xfd419fad, 0xd769a7cf, 0x01c158d4, + 0x2be960b6, 0x55912810, 0x7fb91072, 0xa961b95c, 0x8349813e, + 0xfd31c998, 0xd719f1fa, 0x8bf19d85, 0xa1d9a5e7, 0xdfa1ed41, + 0xf589d523, 0x23517c0d, 0x0979446f, 0x77010cc9, 0x5d2934ab, + 0xced1d437, 0xe4f9ec55, 0x9a81a4f3, 0xb0a99c91, 0x667135bf, + 0x4c590ddd, 0x3221457b, 0x18097d19, 0x44e11166, 0x6ec92904, + 0x10b161a2, 0x3a9959c0, 0xec41f0ee, 0xc669c88c, 0xb811802a, + 0x9239b848}, + {0x00000000, 0x4713f6fb, 0x8e27edf6, 0xc9341b0d, 0xc73eddad, + 0x802d2b56, 0x4919305b, 0x0e0ac6a0, 0x550cbd1b, 0x121f4be0, + 0xdb2b50ed, 0x9c38a616, 0x923260b6, 0xd521964d, 0x1c158d40, + 0x5b067bbb, 0xaa197a36, 0xed0a8ccd, 0x243e97c0, 0x632d613b, + 0x6d27a79b, 0x2a345160, 0xe3004a6d, 0xa413bc96, 0xff15c72d, + 0xb80631d6, 0x71322adb, 0x3621dc20, 0x382b1a80, 0x7f38ec7b, + 0xb60cf776, 0xf11f018d, 0x8f43f22d, 0xc85004d6, 0x01641fdb, + 0x4677e920, 0x487d2f80, 0x0f6ed97b, 0xc65ac276, 0x8149348d, + 0xda4f4f36, 0x9d5cb9cd, 0x5468a2c0, 0x137b543b, 0x1d71929b, + 0x5a626460, 0x93567f6d, 0xd4458996, 0x255a881b, 0x62497ee0, + 0xab7d65ed, 0xec6e9316, 0xe26455b6, 0xa577a34d, 0x6c43b840, + 0x2b504ebb, 0x70563500, 0x3745c3fb, 0xfe71d8f6, 0xb9622e0d, + 0xb768e8ad, 0xf07b1e56, 0x394f055b, 0x7e5cf3a0, 0xc5f6e21b, + 0x82e514e0, 0x4bd10fed, 0x0cc2f916, 0x02c83fb6, 0x45dbc94d, + 0x8cefd240, 0xcbfc24bb, 0x90fa5f00, 0xd7e9a9fb, 0x1eddb2f6, + 0x59ce440d, 0x57c482ad, 0x10d77456, 0xd9e36f5b, 0x9ef099a0, + 0x6fef982d, 0x28fc6ed6, 0xe1c875db, 0xa6db8320, 0xa8d14580, + 0xefc2b37b, 0x26f6a876, 0x61e55e8d, 0x3ae32536, 0x7df0d3cd, + 0xb4c4c8c0, 0xf3d73e3b, 0xfdddf89b, 0xbace0e60, 0x73fa156d, + 0x34e9e396, 0x4ab51036, 0x0da6e6cd, 0xc492fdc0, 0x83810b3b, + 0x8d8bcd9b, 0xca983b60, 0x03ac206d, 0x44bfd696, 0x1fb9ad2d, + 0x58aa5bd6, 0x919e40db, 0xd68db620, 0xd8877080, 0x9f94867b, + 0x56a09d76, 0x11b36b8d, 0xe0ac6a00, 0xa7bf9cfb, 0x6e8b87f6, + 0x2998710d, 0x2792b7ad, 0x60814156, 0xa9b55a5b, 0xeea6aca0, + 0xb5a0d71b, 0xf2b321e0, 0x3b873aed, 0x7c94cc16, 0x729e0ab6, + 0x358dfc4d, 0xfcb9e740, 0xbbaa11bb, 0x509cc277, 0x178f348c, + 0xdebb2f81, 0x99a8d97a, 0x97a21fda, 0xd0b1e921, 0x1985f22c, + 0x5e9604d7, 0x05907f6c, 0x42838997, 0x8bb7929a, 0xcca46461, + 0xc2aea2c1, 0x85bd543a, 0x4c894f37, 0x0b9ab9cc, 0xfa85b841, + 0xbd964eba, 0x74a255b7, 0x33b1a34c, 0x3dbb65ec, 0x7aa89317, + 0xb39c881a, 0xf48f7ee1, 0xaf89055a, 0xe89af3a1, 0x21aee8ac, + 0x66bd1e57, 0x68b7d8f7, 0x2fa42e0c, 0xe6903501, 0xa183c3fa, + 0xdfdf305a, 0x98ccc6a1, 0x51f8ddac, 0x16eb2b57, 0x18e1edf7, + 0x5ff21b0c, 0x96c60001, 0xd1d5f6fa, 0x8ad38d41, 0xcdc07bba, + 0x04f460b7, 0x43e7964c, 0x4ded50ec, 0x0afea617, 0xc3cabd1a, + 0x84d94be1, 0x75c64a6c, 0x32d5bc97, 0xfbe1a79a, 0xbcf25161, + 0xb2f897c1, 0xf5eb613a, 0x3cdf7a37, 0x7bcc8ccc, 0x20caf777, + 0x67d9018c, 0xaeed1a81, 0xe9feec7a, 0xe7f42ada, 0xa0e7dc21, + 0x69d3c72c, 0x2ec031d7, 0x956a206c, 0xd279d697, 0x1b4dcd9a, + 0x5c5e3b61, 0x5254fdc1, 0x15470b3a, 0xdc731037, 0x9b60e6cc, + 0xc0669d77, 0x87756b8c, 0x4e417081, 0x0952867a, 0x075840da, + 0x404bb621, 0x897fad2c, 0xce6c5bd7, 0x3f735a5a, 0x7860aca1, + 0xb154b7ac, 0xf6474157, 0xf84d87f7, 0xbf5e710c, 0x766a6a01, + 0x31799cfa, 0x6a7fe741, 0x2d6c11ba, 0xe4580ab7, 0xa34bfc4c, + 0xad413aec, 0xea52cc17, 0x2366d71a, 0x647521e1, 0x1a29d241, + 0x5d3a24ba, 0x940e3fb7, 0xd31dc94c, 0xdd170fec, 0x9a04f917, + 0x5330e21a, 0x142314e1, 0x4f256f5a, 0x083699a1, 0xc10282ac, + 0x86117457, 0x881bb2f7, 0xcf08440c, 0x063c5f01, 0x412fa9fa, + 0xb030a877, 0xf7235e8c, 0x3e174581, 0x7904b37a, 0x770e75da, + 0x301d8321, 0xf929982c, 0xbe3a6ed7, 0xe53c156c, 0xa22fe397, + 0x6b1bf89a, 0x2c080e61, 0x2202c8c1, 0x65113e3a, 0xac252537, + 0xeb36d3cc}, + {0x00000000, 0xa13984ee, 0x99020f9d, 0x383b8b73, 0xe975197b, + 0x484c9d95, 0x707716e6, 0xd14e9208, 0x099b34b7, 0xa8a2b059, + 0x90993b2a, 0x31a0bfc4, 0xe0ee2dcc, 0x41d7a922, 0x79ec2251, + 0xd8d5a6bf, 0x1336696e, 0xb20fed80, 0x8a3466f3, 0x2b0de21d, + 0xfa437015, 0x5b7af4fb, 0x63417f88, 0xc278fb66, 0x1aad5dd9, + 0xbb94d937, 0x83af5244, 0x2296d6aa, 0xf3d844a2, 0x52e1c04c, + 0x6ada4b3f, 0xcbe3cfd1, 0x266cd2dc, 0x87555632, 0xbf6edd41, + 0x1e5759af, 0xcf19cba7, 0x6e204f49, 0x561bc43a, 0xf72240d4, + 0x2ff7e66b, 0x8ece6285, 0xb6f5e9f6, 0x17cc6d18, 0xc682ff10, + 0x67bb7bfe, 0x5f80f08d, 0xfeb97463, 0x355abbb2, 0x94633f5c, + 0xac58b42f, 0x0d6130c1, 0xdc2fa2c9, 0x7d162627, 0x452dad54, + 0xe41429ba, 0x3cc18f05, 0x9df80beb, 0xa5c38098, 0x04fa0476, + 0xd5b4967e, 0x748d1290, 0x4cb699e3, 0xed8f1d0d, 0x4cd9a5b8, + 0xede02156, 0xd5dbaa25, 0x74e22ecb, 0xa5acbcc3, 0x0495382d, + 0x3caeb35e, 0x9d9737b0, 0x4542910f, 0xe47b15e1, 0xdc409e92, + 0x7d791a7c, 0xac378874, 0x0d0e0c9a, 0x353587e9, 0x940c0307, + 0x5fefccd6, 0xfed64838, 0xc6edc34b, 0x67d447a5, 0xb69ad5ad, + 0x17a35143, 0x2f98da30, 0x8ea15ede, 0x5674f861, 0xf74d7c8f, + 0xcf76f7fc, 0x6e4f7312, 0xbf01e11a, 0x1e3865f4, 0x2603ee87, + 0x873a6a69, 0x6ab57764, 0xcb8cf38a, 0xf3b778f9, 0x528efc17, + 0x83c06e1f, 0x22f9eaf1, 0x1ac26182, 0xbbfbe56c, 0x632e43d3, + 0xc217c73d, 0xfa2c4c4e, 0x5b15c8a0, 0x8a5b5aa8, 0x2b62de46, + 0x13595535, 0xb260d1db, 0x79831e0a, 0xd8ba9ae4, 0xe0811197, + 0x41b89579, 0x90f60771, 0x31cf839f, 0x09f408ec, 0xa8cd8c02, + 0x70182abd, 0xd121ae53, 0xe91a2520, 0x4823a1ce, 0x996d33c6, + 0x3854b728, 0x006f3c5b, 0xa156b8b5, 0x99b34b70, 0x388acf9e, + 0x00b144ed, 0xa188c003, 0x70c6520b, 0xd1ffd6e5, 0xe9c45d96, + 0x48fdd978, 0x90287fc7, 0x3111fb29, 0x092a705a, 0xa813f4b4, + 0x795d66bc, 0xd864e252, 0xe05f6921, 0x4166edcf, 0x8a85221e, + 0x2bbca6f0, 0x13872d83, 0xb2bea96d, 0x63f03b65, 0xc2c9bf8b, + 0xfaf234f8, 0x5bcbb016, 0x831e16a9, 0x22279247, 0x1a1c1934, + 0xbb259dda, 0x6a6b0fd2, 0xcb528b3c, 0xf369004f, 0x525084a1, + 0xbfdf99ac, 0x1ee61d42, 0x26dd9631, 0x87e412df, 0x56aa80d7, + 0xf7930439, 0xcfa88f4a, 0x6e910ba4, 0xb644ad1b, 0x177d29f5, + 0x2f46a286, 0x8e7f2668, 0x5f31b460, 0xfe08308e, 0xc633bbfd, + 0x670a3f13, 0xace9f0c2, 0x0dd0742c, 0x35ebff5f, 0x94d27bb1, + 0x459ce9b9, 0xe4a56d57, 0xdc9ee624, 0x7da762ca, 0xa572c475, + 0x044b409b, 0x3c70cbe8, 0x9d494f06, 0x4c07dd0e, 0xed3e59e0, + 0xd505d293, 0x743c567d, 0xd56aeec8, 0x74536a26, 0x4c68e155, + 0xed5165bb, 0x3c1ff7b3, 0x9d26735d, 0xa51df82e, 0x04247cc0, + 0xdcf1da7f, 0x7dc85e91, 0x45f3d5e2, 0xe4ca510c, 0x3584c304, + 0x94bd47ea, 0xac86cc99, 0x0dbf4877, 0xc65c87a6, 0x67650348, + 0x5f5e883b, 0xfe670cd5, 0x2f299edd, 0x8e101a33, 0xb62b9140, + 0x171215ae, 0xcfc7b311, 0x6efe37ff, 0x56c5bc8c, 0xf7fc3862, + 0x26b2aa6a, 0x878b2e84, 0xbfb0a5f7, 0x1e892119, 0xf3063c14, + 0x523fb8fa, 0x6a043389, 0xcb3db767, 0x1a73256f, 0xbb4aa181, + 0x83712af2, 0x2248ae1c, 0xfa9d08a3, 0x5ba48c4d, 0x639f073e, + 0xc2a683d0, 0x13e811d8, 0xb2d19536, 0x8aea1e45, 0x2bd39aab, + 0xe030557a, 0x4109d194, 0x79325ae7, 0xd80bde09, 0x09454c01, + 0xa87cc8ef, 0x9047439c, 0x317ec772, 0xe9ab61cd, 0x4892e523, + 0x70a96e50, 0xd190eabe, 0x00de78b6, 0xa1e7fc58, 0x99dc772b, + 0x38e5f3c5}, + {0x00000000, 0xe81790a1, 0x0b5e2703, 0xe349b7a2, 0x16bc4e06, + 0xfeabdea7, 0x1de26905, 0xf5f5f9a4, 0x2d789c0c, 0xc56f0cad, + 0x2626bb0f, 0xce312bae, 0x3bc4d20a, 0xd3d342ab, 0x309af509, + 0xd88d65a8, 0x5af13818, 0xb2e6a8b9, 0x51af1f1b, 0xb9b88fba, + 0x4c4d761e, 0xa45ae6bf, 0x4713511d, 0xaf04c1bc, 0x7789a414, + 0x9f9e34b5, 0x7cd78317, 0x94c013b6, 0x6135ea12, 0x89227ab3, + 0x6a6bcd11, 0x827c5db0, 0xb5e27030, 0x5df5e091, 0xbebc5733, + 0x56abc792, 0xa35e3e36, 0x4b49ae97, 0xa8001935, 0x40178994, + 0x989aec3c, 0x708d7c9d, 0x93c4cb3f, 0x7bd35b9e, 0x8e26a23a, + 0x6631329b, 0x85788539, 0x6d6f1598, 0xef134828, 0x0704d889, + 0xe44d6f2b, 0x0c5aff8a, 0xf9af062e, 0x11b8968f, 0xf2f1212d, + 0x1ae6b18c, 0xc26bd424, 0x2a7c4485, 0xc935f327, 0x21226386, + 0xd4d79a22, 0x3cc00a83, 0xdf89bd21, 0x379e2d80, 0xb0b5e621, + 0x58a27680, 0xbbebc122, 0x53fc5183, 0xa609a827, 0x4e1e3886, + 0xad578f24, 0x45401f85, 0x9dcd7a2d, 0x75daea8c, 0x96935d2e, + 0x7e84cd8f, 0x8b71342b, 0x6366a48a, 0x802f1328, 0x68388389, + 0xea44de39, 0x02534e98, 0xe11af93a, 0x090d699b, 0xfcf8903f, + 0x14ef009e, 0xf7a6b73c, 0x1fb1279d, 0xc73c4235, 0x2f2bd294, + 0xcc626536, 0x2475f597, 0xd1800c33, 0x39979c92, 0xdade2b30, + 0x32c9bb91, 0x05579611, 0xed4006b0, 0x0e09b112, 0xe61e21b3, + 0x13ebd817, 0xfbfc48b6, 0x18b5ff14, 0xf0a26fb5, 0x282f0a1d, + 0xc0389abc, 0x23712d1e, 0xcb66bdbf, 0x3e93441b, 0xd684d4ba, + 0x35cd6318, 0xdddaf3b9, 0x5fa6ae09, 0xb7b13ea8, 0x54f8890a, + 0xbcef19ab, 0x491ae00f, 0xa10d70ae, 0x4244c70c, 0xaa5357ad, + 0x72de3205, 0x9ac9a2a4, 0x79801506, 0x919785a7, 0x64627c03, + 0x8c75eca2, 0x6f3c5b00, 0x872bcba1, 0xba1aca03, 0x520d5aa2, + 0xb144ed00, 0x59537da1, 0xaca68405, 0x44b114a4, 0xa7f8a306, + 0x4fef33a7, 0x9762560f, 0x7f75c6ae, 0x9c3c710c, 0x742be1ad, + 0x81de1809, 0x69c988a8, 0x8a803f0a, 0x6297afab, 0xe0ebf21b, + 0x08fc62ba, 0xebb5d518, 0x03a245b9, 0xf657bc1d, 0x1e402cbc, + 0xfd099b1e, 0x151e0bbf, 0xcd936e17, 0x2584feb6, 0xc6cd4914, + 0x2edad9b5, 0xdb2f2011, 0x3338b0b0, 0xd0710712, 0x386697b3, + 0x0ff8ba33, 0xe7ef2a92, 0x04a69d30, 0xecb10d91, 0x1944f435, + 0xf1536494, 0x121ad336, 0xfa0d4397, 0x2280263f, 0xca97b69e, + 0x29de013c, 0xc1c9919d, 0x343c6839, 0xdc2bf898, 0x3f624f3a, + 0xd775df9b, 0x5509822b, 0xbd1e128a, 0x5e57a528, 0xb6403589, + 0x43b5cc2d, 0xaba25c8c, 0x48ebeb2e, 0xa0fc7b8f, 0x78711e27, + 0x90668e86, 0x732f3924, 0x9b38a985, 0x6ecd5021, 0x86dac080, + 0x65937722, 0x8d84e783, 0x0aaf2c22, 0xe2b8bc83, 0x01f10b21, + 0xe9e69b80, 0x1c136224, 0xf404f285, 0x174d4527, 0xff5ad586, + 0x27d7b02e, 0xcfc0208f, 0x2c89972d, 0xc49e078c, 0x316bfe28, + 0xd97c6e89, 0x3a35d92b, 0xd222498a, 0x505e143a, 0xb849849b, + 0x5b003339, 0xb317a398, 0x46e25a3c, 0xaef5ca9d, 0x4dbc7d3f, + 0xa5abed9e, 0x7d268836, 0x95311897, 0x7678af35, 0x9e6f3f94, + 0x6b9ac630, 0x838d5691, 0x60c4e133, 0x88d37192, 0xbf4d5c12, + 0x575accb3, 0xb4137b11, 0x5c04ebb0, 0xa9f11214, 0x41e682b5, + 0xa2af3517, 0x4ab8a5b6, 0x9235c01e, 0x7a2250bf, 0x996be71d, + 0x717c77bc, 0x84898e18, 0x6c9e1eb9, 0x8fd7a91b, 0x67c039ba, + 0xe5bc640a, 0x0dabf4ab, 0xeee24309, 0x06f5d3a8, 0xf3002a0c, + 0x1b17baad, 0xf85e0d0f, 0x10499dae, 0xc8c4f806, 0x20d368a7, + 0xc39adf05, 0x2b8d4fa4, 0xde78b600, 0x366f26a1, 0xd5269103, + 0x3d3101a2}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x0000000000000000, 0xa19017e800000000, 0x03275e0b00000000, + 0xa2b749e300000000, 0x064ebc1600000000, 0xa7deabfe00000000, + 0x0569e21d00000000, 0xa4f9f5f500000000, 0x0c9c782d00000000, + 0xad0c6fc500000000, 0x0fbb262600000000, 0xae2b31ce00000000, + 0x0ad2c43b00000000, 0xab42d3d300000000, 0x09f59a3000000000, + 0xa8658dd800000000, 0x1838f15a00000000, 0xb9a8e6b200000000, + 0x1b1faf5100000000, 0xba8fb8b900000000, 0x1e764d4c00000000, + 0xbfe65aa400000000, 0x1d51134700000000, 0xbcc104af00000000, + 0x14a4897700000000, 0xb5349e9f00000000, 0x1783d77c00000000, + 0xb613c09400000000, 0x12ea356100000000, 0xb37a228900000000, + 0x11cd6b6a00000000, 0xb05d7c8200000000, 0x3070e2b500000000, + 0x91e0f55d00000000, 0x3357bcbe00000000, 0x92c7ab5600000000, + 0x363e5ea300000000, 0x97ae494b00000000, 0x351900a800000000, + 0x9489174000000000, 0x3cec9a9800000000, 0x9d7c8d7000000000, + 0x3fcbc49300000000, 0x9e5bd37b00000000, 0x3aa2268e00000000, + 0x9b32316600000000, 0x3985788500000000, 0x98156f6d00000000, + 0x284813ef00000000, 0x89d8040700000000, 0x2b6f4de400000000, + 0x8aff5a0c00000000, 0x2e06aff900000000, 0x8f96b81100000000, + 0x2d21f1f200000000, 0x8cb1e61a00000000, 0x24d46bc200000000, + 0x85447c2a00000000, 0x27f335c900000000, 0x8663222100000000, + 0x229ad7d400000000, 0x830ac03c00000000, 0x21bd89df00000000, + 0x802d9e3700000000, 0x21e6b5b000000000, 0x8076a25800000000, + 0x22c1ebbb00000000, 0x8351fc5300000000, 0x27a809a600000000, + 0x86381e4e00000000, 0x248f57ad00000000, 0x851f404500000000, + 0x2d7acd9d00000000, 0x8ceada7500000000, 0x2e5d939600000000, + 0x8fcd847e00000000, 0x2b34718b00000000, 0x8aa4666300000000, + 0x28132f8000000000, 0x8983386800000000, 0x39de44ea00000000, + 0x984e530200000000, 0x3af91ae100000000, 0x9b690d0900000000, + 0x3f90f8fc00000000, 0x9e00ef1400000000, 0x3cb7a6f700000000, + 0x9d27b11f00000000, 0x35423cc700000000, 0x94d22b2f00000000, + 0x366562cc00000000, 0x97f5752400000000, 0x330c80d100000000, + 0x929c973900000000, 0x302bdeda00000000, 0x91bbc93200000000, + 0x1196570500000000, 0xb00640ed00000000, 0x12b1090e00000000, + 0xb3211ee600000000, 0x17d8eb1300000000, 0xb648fcfb00000000, + 0x14ffb51800000000, 0xb56fa2f000000000, 0x1d0a2f2800000000, + 0xbc9a38c000000000, 0x1e2d712300000000, 0xbfbd66cb00000000, + 0x1b44933e00000000, 0xbad484d600000000, 0x1863cd3500000000, + 0xb9f3dadd00000000, 0x09aea65f00000000, 0xa83eb1b700000000, + 0x0a89f85400000000, 0xab19efbc00000000, 0x0fe01a4900000000, + 0xae700da100000000, 0x0cc7444200000000, 0xad5753aa00000000, + 0x0532de7200000000, 0xa4a2c99a00000000, 0x0615807900000000, + 0xa785979100000000, 0x037c626400000000, 0xa2ec758c00000000, + 0x005b3c6f00000000, 0xa1cb2b8700000000, 0x03ca1aba00000000, + 0xa25a0d5200000000, 0x00ed44b100000000, 0xa17d535900000000, + 0x0584a6ac00000000, 0xa414b14400000000, 0x06a3f8a700000000, + 0xa733ef4f00000000, 0x0f56629700000000, 0xaec6757f00000000, + 0x0c713c9c00000000, 0xade12b7400000000, 0x0918de8100000000, + 0xa888c96900000000, 0x0a3f808a00000000, 0xabaf976200000000, + 0x1bf2ebe000000000, 0xba62fc0800000000, 0x18d5b5eb00000000, + 0xb945a20300000000, 0x1dbc57f600000000, 0xbc2c401e00000000, + 0x1e9b09fd00000000, 0xbf0b1e1500000000, 0x176e93cd00000000, + 0xb6fe842500000000, 0x1449cdc600000000, 0xb5d9da2e00000000, + 0x11202fdb00000000, 0xb0b0383300000000, 0x120771d000000000, + 0xb397663800000000, 0x33baf80f00000000, 0x922aefe700000000, + 0x309da60400000000, 0x910db1ec00000000, 0x35f4441900000000, + 0x946453f100000000, 0x36d31a1200000000, 0x97430dfa00000000, + 0x3f26802200000000, 0x9eb697ca00000000, 0x3c01de2900000000, + 0x9d91c9c100000000, 0x39683c3400000000, 0x98f82bdc00000000, + 0x3a4f623f00000000, 0x9bdf75d700000000, 0x2b82095500000000, + 0x8a121ebd00000000, 0x28a5575e00000000, 0x893540b600000000, + 0x2dccb54300000000, 0x8c5ca2ab00000000, 0x2eebeb4800000000, + 0x8f7bfca000000000, 0x271e717800000000, 0x868e669000000000, + 0x24392f7300000000, 0x85a9389b00000000, 0x2150cd6e00000000, + 0x80c0da8600000000, 0x2277936500000000, 0x83e7848d00000000, + 0x222caf0a00000000, 0x83bcb8e200000000, 0x210bf10100000000, + 0x809be6e900000000, 0x2462131c00000000, 0x85f204f400000000, + 0x27454d1700000000, 0x86d55aff00000000, 0x2eb0d72700000000, + 0x8f20c0cf00000000, 0x2d97892c00000000, 0x8c079ec400000000, + 0x28fe6b3100000000, 0x896e7cd900000000, 0x2bd9353a00000000, + 0x8a4922d200000000, 0x3a145e5000000000, 0x9b8449b800000000, + 0x3933005b00000000, 0x98a317b300000000, 0x3c5ae24600000000, + 0x9dcaf5ae00000000, 0x3f7dbc4d00000000, 0x9eedaba500000000, + 0x3688267d00000000, 0x9718319500000000, 0x35af787600000000, + 0x943f6f9e00000000, 0x30c69a6b00000000, 0x91568d8300000000, + 0x33e1c46000000000, 0x9271d38800000000, 0x125c4dbf00000000, + 0xb3cc5a5700000000, 0x117b13b400000000, 0xb0eb045c00000000, + 0x1412f1a900000000, 0xb582e64100000000, 0x1735afa200000000, + 0xb6a5b84a00000000, 0x1ec0359200000000, 0xbf50227a00000000, + 0x1de76b9900000000, 0xbc777c7100000000, 0x188e898400000000, + 0xb91e9e6c00000000, 0x1ba9d78f00000000, 0xba39c06700000000, + 0x0a64bce500000000, 0xabf4ab0d00000000, 0x0943e2ee00000000, + 0xa8d3f50600000000, 0x0c2a00f300000000, 0xadba171b00000000, + 0x0f0d5ef800000000, 0xae9d491000000000, 0x06f8c4c800000000, + 0xa768d32000000000, 0x05df9ac300000000, 0xa44f8d2b00000000, + 0x00b678de00000000, 0xa1266f3600000000, 0x039126d500000000, + 0xa201313d00000000}, + {0x0000000000000000, 0xee8439a100000000, 0x9d0f029900000000, + 0x738b3b3800000000, 0x7b1975e900000000, 0x959d4c4800000000, + 0xe616777000000000, 0x08924ed100000000, 0xb7349b0900000000, + 0x59b0a2a800000000, 0x2a3b999000000000, 0xc4bfa03100000000, + 0xcc2deee000000000, 0x22a9d74100000000, 0x5122ec7900000000, + 0xbfa6d5d800000000, 0x6e69361300000000, 0x80ed0fb200000000, + 0xf366348a00000000, 0x1de20d2b00000000, 0x157043fa00000000, + 0xfbf47a5b00000000, 0x887f416300000000, 0x66fb78c200000000, + 0xd95dad1a00000000, 0x37d994bb00000000, 0x4452af8300000000, + 0xaad6962200000000, 0xa244d8f300000000, 0x4cc0e15200000000, + 0x3f4bda6a00000000, 0xd1cfe3cb00000000, 0xdcd26c2600000000, + 0x3256558700000000, 0x41dd6ebf00000000, 0xaf59571e00000000, + 0xa7cb19cf00000000, 0x494f206e00000000, 0x3ac41b5600000000, + 0xd44022f700000000, 0x6be6f72f00000000, 0x8562ce8e00000000, + 0xf6e9f5b600000000, 0x186dcc1700000000, 0x10ff82c600000000, + 0xfe7bbb6700000000, 0x8df0805f00000000, 0x6374b9fe00000000, + 0xb2bb5a3500000000, 0x5c3f639400000000, 0x2fb458ac00000000, + 0xc130610d00000000, 0xc9a22fdc00000000, 0x2726167d00000000, + 0x54ad2d4500000000, 0xba2914e400000000, 0x058fc13c00000000, + 0xeb0bf89d00000000, 0x9880c3a500000000, 0x7604fa0400000000, + 0x7e96b4d500000000, 0x90128d7400000000, 0xe399b64c00000000, + 0x0d1d8fed00000000, 0xb8a5d94c00000000, 0x5621e0ed00000000, + 0x25aadbd500000000, 0xcb2ee27400000000, 0xc3bcaca500000000, + 0x2d38950400000000, 0x5eb3ae3c00000000, 0xb037979d00000000, + 0x0f91424500000000, 0xe1157be400000000, 0x929e40dc00000000, + 0x7c1a797d00000000, 0x748837ac00000000, 0x9a0c0e0d00000000, + 0xe987353500000000, 0x07030c9400000000, 0xd6ccef5f00000000, + 0x3848d6fe00000000, 0x4bc3edc600000000, 0xa547d46700000000, + 0xadd59ab600000000, 0x4351a31700000000, 0x30da982f00000000, + 0xde5ea18e00000000, 0x61f8745600000000, 0x8f7c4df700000000, + 0xfcf776cf00000000, 0x12734f6e00000000, 0x1ae101bf00000000, + 0xf465381e00000000, 0x87ee032600000000, 0x696a3a8700000000, + 0x6477b56a00000000, 0x8af38ccb00000000, 0xf978b7f300000000, + 0x17fc8e5200000000, 0x1f6ec08300000000, 0xf1eaf92200000000, + 0x8261c21a00000000, 0x6ce5fbbb00000000, 0xd3432e6300000000, + 0x3dc717c200000000, 0x4e4c2cfa00000000, 0xa0c8155b00000000, + 0xa85a5b8a00000000, 0x46de622b00000000, 0x3555591300000000, + 0xdbd160b200000000, 0x0a1e837900000000, 0xe49abad800000000, + 0x971181e000000000, 0x7995b84100000000, 0x7107f69000000000, + 0x9f83cf3100000000, 0xec08f40900000000, 0x028ccda800000000, + 0xbd2a187000000000, 0x53ae21d100000000, 0x20251ae900000000, + 0xcea1234800000000, 0xc6336d9900000000, 0x28b7543800000000, + 0x5b3c6f0000000000, 0xb5b856a100000000, 0x704bb39900000000, + 0x9ecf8a3800000000, 0xed44b10000000000, 0x03c088a100000000, + 0x0b52c67000000000, 0xe5d6ffd100000000, 0x965dc4e900000000, + 0x78d9fd4800000000, 0xc77f289000000000, 0x29fb113100000000, + 0x5a702a0900000000, 0xb4f413a800000000, 0xbc665d7900000000, + 0x52e264d800000000, 0x21695fe000000000, 0xcfed664100000000, + 0x1e22858a00000000, 0xf0a6bc2b00000000, 0x832d871300000000, + 0x6da9beb200000000, 0x653bf06300000000, 0x8bbfc9c200000000, + 0xf834f2fa00000000, 0x16b0cb5b00000000, 0xa9161e8300000000, + 0x4792272200000000, 0x34191c1a00000000, 0xda9d25bb00000000, + 0xd20f6b6a00000000, 0x3c8b52cb00000000, 0x4f0069f300000000, + 0xa184505200000000, 0xac99dfbf00000000, 0x421de61e00000000, + 0x3196dd2600000000, 0xdf12e48700000000, 0xd780aa5600000000, + 0x390493f700000000, 0x4a8fa8cf00000000, 0xa40b916e00000000, + 0x1bad44b600000000, 0xf5297d1700000000, 0x86a2462f00000000, + 0x68267f8e00000000, 0x60b4315f00000000, 0x8e3008fe00000000, + 0xfdbb33c600000000, 0x133f0a6700000000, 0xc2f0e9ac00000000, + 0x2c74d00d00000000, 0x5fffeb3500000000, 0xb17bd29400000000, + 0xb9e99c4500000000, 0x576da5e400000000, 0x24e69edc00000000, + 0xca62a77d00000000, 0x75c472a500000000, 0x9b404b0400000000, + 0xe8cb703c00000000, 0x064f499d00000000, 0x0edd074c00000000, + 0xe0593eed00000000, 0x93d205d500000000, 0x7d563c7400000000, + 0xc8ee6ad500000000, 0x266a537400000000, 0x55e1684c00000000, + 0xbb6551ed00000000, 0xb3f71f3c00000000, 0x5d73269d00000000, + 0x2ef81da500000000, 0xc07c240400000000, 0x7fdaf1dc00000000, + 0x915ec87d00000000, 0xe2d5f34500000000, 0x0c51cae400000000, + 0x04c3843500000000, 0xea47bd9400000000, 0x99cc86ac00000000, + 0x7748bf0d00000000, 0xa6875cc600000000, 0x4803656700000000, + 0x3b885e5f00000000, 0xd50c67fe00000000, 0xdd9e292f00000000, + 0x331a108e00000000, 0x40912bb600000000, 0xae15121700000000, + 0x11b3c7cf00000000, 0xff37fe6e00000000, 0x8cbcc55600000000, + 0x6238fcf700000000, 0x6aaab22600000000, 0x842e8b8700000000, + 0xf7a5b0bf00000000, 0x1921891e00000000, 0x143c06f300000000, + 0xfab83f5200000000, 0x8933046a00000000, 0x67b73dcb00000000, + 0x6f25731a00000000, 0x81a14abb00000000, 0xf22a718300000000, + 0x1cae482200000000, 0xa3089dfa00000000, 0x4d8ca45b00000000, + 0x3e079f6300000000, 0xd083a6c200000000, 0xd811e81300000000, + 0x3695d1b200000000, 0x451eea8a00000000, 0xab9ad32b00000000, + 0x7a5530e000000000, 0x94d1094100000000, 0xe75a327900000000, + 0x09de0bd800000000, 0x014c450900000000, 0xefc87ca800000000, + 0x9c43479000000000, 0x72c77e3100000000, 0xcd61abe900000000, + 0x23e5924800000000, 0x506ea97000000000, 0xbeea90d100000000, + 0xb678de0000000000, 0x58fce7a100000000, 0x2b77dc9900000000, + 0xc5f3e53800000000}, + {0x0000000000000000, 0xfbf6134700000000, 0xf6ed278e00000000, + 0x0d1b34c900000000, 0xaddd3ec700000000, 0x562b2d8000000000, + 0x5b30194900000000, 0xa0c60a0e00000000, 0x1bbd0c5500000000, + 0xe04b1f1200000000, 0xed502bdb00000000, 0x16a6389c00000000, + 0xb660329200000000, 0x4d9621d500000000, 0x408d151c00000000, + 0xbb7b065b00000000, 0x367a19aa00000000, 0xcd8c0aed00000000, + 0xc0973e2400000000, 0x3b612d6300000000, 0x9ba7276d00000000, + 0x6051342a00000000, 0x6d4a00e300000000, 0x96bc13a400000000, + 0x2dc715ff00000000, 0xd63106b800000000, 0xdb2a327100000000, + 0x20dc213600000000, 0x801a2b3800000000, 0x7bec387f00000000, + 0x76f70cb600000000, 0x8d011ff100000000, 0x2df2438f00000000, + 0xd60450c800000000, 0xdb1f640100000000, 0x20e9774600000000, + 0x802f7d4800000000, 0x7bd96e0f00000000, 0x76c25ac600000000, + 0x8d34498100000000, 0x364f4fda00000000, 0xcdb95c9d00000000, + 0xc0a2685400000000, 0x3b547b1300000000, 0x9b92711d00000000, + 0x6064625a00000000, 0x6d7f569300000000, 0x968945d400000000, + 0x1b885a2500000000, 0xe07e496200000000, 0xed657dab00000000, + 0x16936eec00000000, 0xb65564e200000000, 0x4da377a500000000, + 0x40b8436c00000000, 0xbb4e502b00000000, 0x0035567000000000, + 0xfbc3453700000000, 0xf6d871fe00000000, 0x0d2e62b900000000, + 0xade868b700000000, 0x561e7bf000000000, 0x5b054f3900000000, + 0xa0f35c7e00000000, 0x1be2f6c500000000, 0xe014e58200000000, + 0xed0fd14b00000000, 0x16f9c20c00000000, 0xb63fc80200000000, + 0x4dc9db4500000000, 0x40d2ef8c00000000, 0xbb24fccb00000000, + 0x005ffa9000000000, 0xfba9e9d700000000, 0xf6b2dd1e00000000, + 0x0d44ce5900000000, 0xad82c45700000000, 0x5674d71000000000, + 0x5b6fe3d900000000, 0xa099f09e00000000, 0x2d98ef6f00000000, + 0xd66efc2800000000, 0xdb75c8e100000000, 0x2083dba600000000, + 0x8045d1a800000000, 0x7bb3c2ef00000000, 0x76a8f62600000000, + 0x8d5ee56100000000, 0x3625e33a00000000, 0xcdd3f07d00000000, + 0xc0c8c4b400000000, 0x3b3ed7f300000000, 0x9bf8ddfd00000000, + 0x600eceba00000000, 0x6d15fa7300000000, 0x96e3e93400000000, + 0x3610b54a00000000, 0xcde6a60d00000000, 0xc0fd92c400000000, + 0x3b0b818300000000, 0x9bcd8b8d00000000, 0x603b98ca00000000, + 0x6d20ac0300000000, 0x96d6bf4400000000, 0x2dadb91f00000000, + 0xd65baa5800000000, 0xdb409e9100000000, 0x20b68dd600000000, + 0x807087d800000000, 0x7b86949f00000000, 0x769da05600000000, + 0x8d6bb31100000000, 0x006aace000000000, 0xfb9cbfa700000000, + 0xf6878b6e00000000, 0x0d71982900000000, 0xadb7922700000000, + 0x5641816000000000, 0x5b5ab5a900000000, 0xa0aca6ee00000000, + 0x1bd7a0b500000000, 0xe021b3f200000000, 0xed3a873b00000000, + 0x16cc947c00000000, 0xb60a9e7200000000, 0x4dfc8d3500000000, + 0x40e7b9fc00000000, 0xbb11aabb00000000, 0x77c29c5000000000, + 0x8c348f1700000000, 0x812fbbde00000000, 0x7ad9a89900000000, + 0xda1fa29700000000, 0x21e9b1d000000000, 0x2cf2851900000000, + 0xd704965e00000000, 0x6c7f900500000000, 0x9789834200000000, + 0x9a92b78b00000000, 0x6164a4cc00000000, 0xc1a2aec200000000, + 0x3a54bd8500000000, 0x374f894c00000000, 0xccb99a0b00000000, + 0x41b885fa00000000, 0xba4e96bd00000000, 0xb755a27400000000, + 0x4ca3b13300000000, 0xec65bb3d00000000, 0x1793a87a00000000, + 0x1a889cb300000000, 0xe17e8ff400000000, 0x5a0589af00000000, + 0xa1f39ae800000000, 0xace8ae2100000000, 0x571ebd6600000000, + 0xf7d8b76800000000, 0x0c2ea42f00000000, 0x013590e600000000, + 0xfac383a100000000, 0x5a30dfdf00000000, 0xa1c6cc9800000000, + 0xacddf85100000000, 0x572beb1600000000, 0xf7ede11800000000, + 0x0c1bf25f00000000, 0x0100c69600000000, 0xfaf6d5d100000000, + 0x418dd38a00000000, 0xba7bc0cd00000000, 0xb760f40400000000, + 0x4c96e74300000000, 0xec50ed4d00000000, 0x17a6fe0a00000000, + 0x1abdcac300000000, 0xe14bd98400000000, 0x6c4ac67500000000, + 0x97bcd53200000000, 0x9aa7e1fb00000000, 0x6151f2bc00000000, + 0xc197f8b200000000, 0x3a61ebf500000000, 0x377adf3c00000000, + 0xcc8ccc7b00000000, 0x77f7ca2000000000, 0x8c01d96700000000, + 0x811aedae00000000, 0x7aecfee900000000, 0xda2af4e700000000, + 0x21dce7a000000000, 0x2cc7d36900000000, 0xd731c02e00000000, + 0x6c206a9500000000, 0x97d679d200000000, 0x9acd4d1b00000000, + 0x613b5e5c00000000, 0xc1fd545200000000, 0x3a0b471500000000, + 0x371073dc00000000, 0xcce6609b00000000, 0x779d66c000000000, + 0x8c6b758700000000, 0x8170414e00000000, 0x7a86520900000000, + 0xda40580700000000, 0x21b64b4000000000, 0x2cad7f8900000000, + 0xd75b6cce00000000, 0x5a5a733f00000000, 0xa1ac607800000000, + 0xacb754b100000000, 0x574147f600000000, 0xf7874df800000000, + 0x0c715ebf00000000, 0x016a6a7600000000, 0xfa9c793100000000, + 0x41e77f6a00000000, 0xba116c2d00000000, 0xb70a58e400000000, + 0x4cfc4ba300000000, 0xec3a41ad00000000, 0x17cc52ea00000000, + 0x1ad7662300000000, 0xe121756400000000, 0x41d2291a00000000, + 0xba243a5d00000000, 0xb73f0e9400000000, 0x4cc91dd300000000, + 0xec0f17dd00000000, 0x17f9049a00000000, 0x1ae2305300000000, + 0xe114231400000000, 0x5a6f254f00000000, 0xa199360800000000, + 0xac8202c100000000, 0x5774118600000000, 0xf7b21b8800000000, + 0x0c4408cf00000000, 0x015f3c0600000000, 0xfaa92f4100000000, + 0x77a830b000000000, 0x8c5e23f700000000, 0x8145173e00000000, + 0x7ab3047900000000, 0xda750e7700000000, 0x21831d3000000000, + 0x2c9829f900000000, 0xd76e3abe00000000, 0x6c153ce500000000, + 0x97e32fa200000000, 0x9af81b6b00000000, 0x610e082c00000000, + 0xc1c8022200000000, 0x3a3e116500000000, 0x372525ac00000000, + 0xccd336eb00000000}, + {0x0000000000000000, 0x6238282a00000000, 0xc470505400000000, + 0xa648787e00000000, 0x88e1a0a800000000, 0xead9888200000000, + 0x4c91f0fc00000000, 0x2ea9d8d600000000, 0x51c5308a00000000, + 0x33fd18a000000000, 0x95b560de00000000, 0xf78d48f400000000, + 0xd924902200000000, 0xbb1cb80800000000, 0x1d54c07600000000, + 0x7f6ce85c00000000, 0xe38c10cf00000000, 0x81b438e500000000, + 0x27fc409b00000000, 0x45c468b100000000, 0x6b6db06700000000, + 0x0955984d00000000, 0xaf1de03300000000, 0xcd25c81900000000, + 0xb249204500000000, 0xd071086f00000000, 0x7639701100000000, + 0x1401583b00000000, 0x3aa880ed00000000, 0x5890a8c700000000, + 0xfed8d0b900000000, 0x9ce0f89300000000, 0x871f504500000000, + 0xe527786f00000000, 0x436f001100000000, 0x2157283b00000000, + 0x0ffef0ed00000000, 0x6dc6d8c700000000, 0xcb8ea0b900000000, + 0xa9b6889300000000, 0xd6da60cf00000000, 0xb4e248e500000000, + 0x12aa309b00000000, 0x709218b100000000, 0x5e3bc06700000000, + 0x3c03e84d00000000, 0x9a4b903300000000, 0xf873b81900000000, + 0x6493408a00000000, 0x06ab68a000000000, 0xa0e310de00000000, + 0xc2db38f400000000, 0xec72e02200000000, 0x8e4ac80800000000, + 0x2802b07600000000, 0x4a3a985c00000000, 0x3556700000000000, + 0x576e582a00000000, 0xf126205400000000, 0x931e087e00000000, + 0xbdb7d0a800000000, 0xdf8ff88200000000, 0x79c780fc00000000, + 0x1bffa8d600000000, 0x0e3fa08a00000000, 0x6c0788a000000000, + 0xca4ff0de00000000, 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0xa974be0000000000, + 0x11b0b3a400000000, 0x822b7adb00000000, 0x3787205b00000000, + 0xa41ce92400000000, 0x06084ac800000000, 0x959383b700000000, + 0x203fd93700000000, 0xb3a4104800000000, 0x0b601dec00000000, + 0x98fbd49300000000, 0x2d578e1300000000, 0xbecc476c00000000, + 0x2878b91100000000, 0xbbe3706e00000000, 0x0e4f2aee00000000, + 0x9dd4e39100000000, 0x2510ee3500000000, 0xb68b274a00000000, + 0x03277dca00000000, 0x90bcb4b500000000, 0x32a8175900000000, + 0xa133de2600000000, 0x149f84a600000000, 0x87044dd900000000, + 0x3fc0407d00000000, 0xac5b890200000000, 0x19f7d38200000000, + 0x8a6c1afd00000000}, + {0x0000000000000000, 0x650b796900000000, 0xca16f2d200000000, + 0xaf1d8bbb00000000, 0xd52b957e00000000, 0xb020ec1700000000, + 0x1f3d67ac00000000, 0x7a361ec500000000, 0xaa572afd00000000, + 0xcf5c539400000000, 0x6041d82f00000000, 0x054aa14600000000, + 0x7f7cbf8300000000, 0x1a77c6ea00000000, 0xb56a4d5100000000, + 0xd061343800000000, 0x15a9252100000000, 0x70a25c4800000000, + 0xdfbfd7f300000000, 0xbab4ae9a00000000, 0xc082b05f00000000, + 0xa589c93600000000, 0x0a94428d00000000, 0x6f9f3be400000000, + 0xbffe0fdc00000000, 0xdaf576b500000000, 0x75e8fd0e00000000, + 0x10e3846700000000, 0x6ad59aa200000000, 0x0fdee3cb00000000, + 0xa0c3687000000000, 0xc5c8111900000000, 0x2a524b4200000000, + 0x4f59322b00000000, 0xe044b99000000000, 0x854fc0f900000000, + 0xff79de3c00000000, 0x9a72a75500000000, 0x356f2cee00000000, + 0x5064558700000000, 0x800561bf00000000, 0xe50e18d600000000, + 0x4a13936d00000000, 0x2f18ea0400000000, 0x552ef4c100000000, + 0x30258da800000000, 0x9f38061300000000, 0xfa337f7a00000000, + 0x3ffb6e6300000000, 0x5af0170a00000000, 0xf5ed9cb100000000, + 0x90e6e5d800000000, 0xead0fb1d00000000, 0x8fdb827400000000, + 0x20c609cf00000000, 0x45cd70a600000000, 0x95ac449e00000000, + 0xf0a73df700000000, 0x5fbab64c00000000, 0x3ab1cf2500000000, + 0x4087d1e000000000, 0x258ca88900000000, 0x8a91233200000000, + 0xef9a5a5b00000000, 0x54a4968400000000, 0x31afefed00000000, + 0x9eb2645600000000, 0xfbb91d3f00000000, 0x818f03fa00000000, + 0xe4847a9300000000, 0x4b99f12800000000, 0x2e92884100000000, + 0xfef3bc7900000000, 0x9bf8c51000000000, 0x34e54eab00000000, + 0x51ee37c200000000, 0x2bd8290700000000, 0x4ed3506e00000000, + 0xe1cedbd500000000, 0x84c5a2bc00000000, 0x410db3a500000000, + 0x2406cacc00000000, 0x8b1b417700000000, 0xee10381e00000000, + 0x942626db00000000, 0xf12d5fb200000000, 0x5e30d40900000000, + 0x3b3bad6000000000, 0xeb5a995800000000, 0x8e51e03100000000, + 0x214c6b8a00000000, 0x444712e300000000, 0x3e710c2600000000, + 0x5b7a754f00000000, 0xf467fef400000000, 0x916c879d00000000, + 0x7ef6ddc600000000, 0x1bfda4af00000000, 0xb4e02f1400000000, + 0xd1eb567d00000000, 0xabdd48b800000000, 0xced631d100000000, + 0x61cbba6a00000000, 0x04c0c30300000000, 0xd4a1f73b00000000, + 0xb1aa8e5200000000, 0x1eb705e900000000, 0x7bbc7c8000000000, + 0x018a624500000000, 0x64811b2c00000000, 0xcb9c909700000000, + 0xae97e9fe00000000, 0x6b5ff8e700000000, 0x0e54818e00000000, + 0xa1490a3500000000, 0xc442735c00000000, 0xbe746d9900000000, + 0xdb7f14f000000000, 0x74629f4b00000000, 0x1169e62200000000, + 0xc108d21a00000000, 0xa403ab7300000000, 0x0b1e20c800000000, + 0x6e1559a100000000, 0x1423476400000000, 0x71283e0d00000000, + 0xde35b5b600000000, 0xbb3eccdf00000000, 0xe94e5cd200000000, + 0x8c4525bb00000000, 0x2358ae0000000000, 0x4653d76900000000, + 0x3c65c9ac00000000, 0x596eb0c500000000, 0xf6733b7e00000000, + 0x9378421700000000, 0x4319762f00000000, 0x26120f4600000000, + 0x890f84fd00000000, 0xec04fd9400000000, 0x9632e35100000000, + 0xf3399a3800000000, 0x5c24118300000000, 0x392f68ea00000000, + 0xfce779f300000000, 0x99ec009a00000000, 0x36f18b2100000000, + 0x53faf24800000000, 0x29ccec8d00000000, 0x4cc795e400000000, + 0xe3da1e5f00000000, 0x86d1673600000000, 0x56b0530e00000000, + 0x33bb2a6700000000, 0x9ca6a1dc00000000, 0xf9add8b500000000, + 0x839bc67000000000, 0xe690bf1900000000, 0x498d34a200000000, + 0x2c864dcb00000000, 0xc31c179000000000, 0xa6176ef900000000, + 0x090ae54200000000, 0x6c019c2b00000000, 0x163782ee00000000, + 0x733cfb8700000000, 0xdc21703c00000000, 0xb92a095500000000, + 0x694b3d6d00000000, 0x0c40440400000000, 0xa35dcfbf00000000, + 0xc656b6d600000000, 0xbc60a81300000000, 0xd96bd17a00000000, + 0x76765ac100000000, 0x137d23a800000000, 0xd6b532b100000000, + 0xb3be4bd800000000, 0x1ca3c06300000000, 0x79a8b90a00000000, + 0x039ea7cf00000000, 0x6695dea600000000, 0xc988551d00000000, + 0xac832c7400000000, 0x7ce2184c00000000, 0x19e9612500000000, + 0xb6f4ea9e00000000, 0xd3ff93f700000000, 0xa9c98d3200000000, + 0xccc2f45b00000000, 0x63df7fe000000000, 0x06d4068900000000, + 0xbdeaca5600000000, 0xd8e1b33f00000000, 0x77fc388400000000, + 0x12f741ed00000000, 0x68c15f2800000000, 0x0dca264100000000, + 0xa2d7adfa00000000, 0xc7dcd49300000000, 0x17bde0ab00000000, + 0x72b699c200000000, 0xddab127900000000, 0xb8a06b1000000000, + 0xc29675d500000000, 0xa79d0cbc00000000, 0x0880870700000000, + 0x6d8bfe6e00000000, 0xa843ef7700000000, 0xcd48961e00000000, + 0x62551da500000000, 0x075e64cc00000000, 0x7d687a0900000000, + 0x1863036000000000, 0xb77e88db00000000, 0xd275f1b200000000, + 0x0214c58a00000000, 0x671fbce300000000, 0xc802375800000000, + 0xad094e3100000000, 0xd73f50f400000000, 0xb234299d00000000, + 0x1d29a22600000000, 0x7822db4f00000000, 0x97b8811400000000, + 0xf2b3f87d00000000, 0x5dae73c600000000, 0x38a50aaf00000000, + 0x4293146a00000000, 0x27986d0300000000, 0x8885e6b800000000, + 0xed8e9fd100000000, 0x3defabe900000000, 0x58e4d28000000000, + 0xf7f9593b00000000, 0x92f2205200000000, 0xe8c43e9700000000, + 0x8dcf47fe00000000, 0x22d2cc4500000000, 0x47d9b52c00000000, + 0x8211a43500000000, 0xe71add5c00000000, 0x480756e700000000, + 0x2d0c2f8e00000000, 0x573a314b00000000, 0x3231482200000000, + 0x9d2cc39900000000, 0xf827baf000000000, 0x28468ec800000000, + 0x4d4df7a100000000, 0xe2507c1a00000000, 0x875b057300000000, + 0xfd6d1bb600000000, 0x986662df00000000, 0x377be96400000000, + 0x5270900d00000000}, + {0x0000000000000000, 0xdcecb13d00000000, 0xb8d9637b00000000, + 0x6435d24600000000, 0x70b3c7f600000000, 0xac5f76cb00000000, + 0xc86aa48d00000000, 0x148615b000000000, 0xa160fe3600000000, + 0x7d8c4f0b00000000, 0x19b99d4d00000000, 0xc5552c7000000000, + 0xd1d339c000000000, 0x0d3f88fd00000000, 0x690a5abb00000000, + 0xb5e6eb8600000000, 0x42c1fc6d00000000, 0x9e2d4d5000000000, + 0xfa189f1600000000, 0x26f42e2b00000000, 0x32723b9b00000000, + 0xee9e8aa600000000, 0x8aab58e000000000, 0x5647e9dd00000000, + 0xe3a1025b00000000, 0x3f4db36600000000, 0x5b78612000000000, + 0x8794d01d00000000, 0x9312c5ad00000000, 0x4ffe749000000000, + 0x2bcba6d600000000, 0xf72717eb00000000, 0x8482f9db00000000, + 0x586e48e600000000, 0x3c5b9aa000000000, 0xe0b72b9d00000000, + 0xf4313e2d00000000, 0x28dd8f1000000000, 0x4ce85d5600000000, + 0x9004ec6b00000000, 0x25e207ed00000000, 0xf90eb6d000000000, + 0x9d3b649600000000, 0x41d7d5ab00000000, 0x5551c01b00000000, + 0x89bd712600000000, 0xed88a36000000000, 0x3164125d00000000, + 0xc64305b600000000, 0x1aafb48b00000000, 0x7e9a66cd00000000, + 0xa276d7f000000000, 0xb6f0c24000000000, 0x6a1c737d00000000, + 0x0e29a13b00000000, 0xd2c5100600000000, 0x6723fb8000000000, + 0xbbcf4abd00000000, 0xdffa98fb00000000, 0x031629c600000000, + 0x17903c7600000000, 0xcb7c8d4b00000000, 0xaf495f0d00000000, + 0x73a5ee3000000000, 0x4903826c00000000, 0x95ef335100000000, + 0xf1dae11700000000, 0x2d36502a00000000, 0x39b0459a00000000, + 0xe55cf4a700000000, 0x816926e100000000, 0x5d8597dc00000000, + 0xe8637c5a00000000, 0x348fcd6700000000, 0x50ba1f2100000000, + 0x8c56ae1c00000000, 0x98d0bbac00000000, 0x443c0a9100000000, + 0x2009d8d700000000, 0xfce569ea00000000, 0x0bc27e0100000000, + 0xd72ecf3c00000000, 0xb31b1d7a00000000, 0x6ff7ac4700000000, + 0x7b71b9f700000000, 0xa79d08ca00000000, 0xc3a8da8c00000000, + 0x1f446bb100000000, 0xaaa2803700000000, 0x764e310a00000000, + 0x127be34c00000000, 0xce97527100000000, 0xda1147c100000000, + 0x06fdf6fc00000000, 0x62c824ba00000000, 0xbe24958700000000, + 0xcd817bb700000000, 0x116dca8a00000000, 0x755818cc00000000, + 0xa9b4a9f100000000, 0xbd32bc4100000000, 0x61de0d7c00000000, + 0x05ebdf3a00000000, 0xd9076e0700000000, 0x6ce1858100000000, + 0xb00d34bc00000000, 0xd438e6fa00000000, 0x08d457c700000000, + 0x1c52427700000000, 0xc0bef34a00000000, 0xa48b210c00000000, + 0x7867903100000000, 0x8f4087da00000000, 0x53ac36e700000000, + 0x3799e4a100000000, 0xeb75559c00000000, 0xfff3402c00000000, + 0x231ff11100000000, 0x472a235700000000, 0x9bc6926a00000000, + 0x2e2079ec00000000, 0xf2ccc8d100000000, 0x96f91a9700000000, + 0x4a15abaa00000000, 0x5e93be1a00000000, 0x827f0f2700000000, + 0xe64add6100000000, 0x3aa66c5c00000000, 0x920604d900000000, + 0x4eeab5e400000000, 0x2adf67a200000000, 0xf633d69f00000000, + 0xe2b5c32f00000000, 0x3e59721200000000, 0x5a6ca05400000000, + 0x8680116900000000, 0x3366faef00000000, 0xef8a4bd200000000, + 0x8bbf999400000000, 0x575328a900000000, 0x43d53d1900000000, + 0x9f398c2400000000, 0xfb0c5e6200000000, 0x27e0ef5f00000000, + 0xd0c7f8b400000000, 0x0c2b498900000000, 0x681e9bcf00000000, + 0xb4f22af200000000, 0xa0743f4200000000, 0x7c988e7f00000000, + 0x18ad5c3900000000, 0xc441ed0400000000, 0x71a7068200000000, + 0xad4bb7bf00000000, 0xc97e65f900000000, 0x1592d4c400000000, + 0x0114c17400000000, 0xddf8704900000000, 0xb9cda20f00000000, + 0x6521133200000000, 0x1684fd0200000000, 0xca684c3f00000000, + 0xae5d9e7900000000, 0x72b12f4400000000, 0x66373af400000000, + 0xbadb8bc900000000, 0xdeee598f00000000, 0x0202e8b200000000, + 0xb7e4033400000000, 0x6b08b20900000000, 0x0f3d604f00000000, + 0xd3d1d17200000000, 0xc757c4c200000000, 0x1bbb75ff00000000, + 0x7f8ea7b900000000, 0xa362168400000000, 0x5445016f00000000, + 0x88a9b05200000000, 0xec9c621400000000, 0x3070d32900000000, + 0x24f6c69900000000, 0xf81a77a400000000, 0x9c2fa5e200000000, + 0x40c314df00000000, 0xf525ff5900000000, 0x29c94e6400000000, + 0x4dfc9c2200000000, 0x91102d1f00000000, 0x859638af00000000, + 0x597a899200000000, 0x3d4f5bd400000000, 0xe1a3eae900000000, + 0xdb0586b500000000, 0x07e9378800000000, 0x63dce5ce00000000, + 0xbf3054f300000000, 0xabb6414300000000, 0x775af07e00000000, + 0x136f223800000000, 0xcf83930500000000, 0x7a65788300000000, + 0xa689c9be00000000, 0xc2bc1bf800000000, 0x1e50aac500000000, + 0x0ad6bf7500000000, 0xd63a0e4800000000, 0xb20fdc0e00000000, + 0x6ee36d3300000000, 0x99c47ad800000000, 0x4528cbe500000000, + 0x211d19a300000000, 0xfdf1a89e00000000, 0xe977bd2e00000000, + 0x359b0c1300000000, 0x51aede5500000000, 0x8d426f6800000000, + 0x38a484ee00000000, 0xe44835d300000000, 0x807de79500000000, + 0x5c9156a800000000, 0x4817431800000000, 0x94fbf22500000000, + 0xf0ce206300000000, 0x2c22915e00000000, 0x5f877f6e00000000, + 0x836bce5300000000, 0xe75e1c1500000000, 0x3bb2ad2800000000, + 0x2f34b89800000000, 0xf3d809a500000000, 0x97eddbe300000000, + 0x4b016ade00000000, 0xfee7815800000000, 0x220b306500000000, + 0x463ee22300000000, 0x9ad2531e00000000, 0x8e5446ae00000000, + 0x52b8f79300000000, 0x368d25d500000000, 0xea6194e800000000, + 0x1d46830300000000, 0xc1aa323e00000000, 0xa59fe07800000000, + 0x7973514500000000, 0x6df544f500000000, 0xb119f5c800000000, + 0xd52c278e00000000, 0x09c096b300000000, 0xbc267d3500000000, + 0x60cacc0800000000, 0x04ff1e4e00000000, 0xd813af7300000000, + 0xcc95bac300000000, 0x10790bfe00000000, 0x744cd9b800000000, + 0xa8a0688500000000}}; + +#else /* W == 4 */ + +local const z_crc_t FAR crc_braid_table[][256] = { + {0x00000000, 0x81256527, 0xd93bcc0f, 0x581ea928, 0x69069e5f, + 0xe823fb78, 0xb03d5250, 0x31183777, 0xd20d3cbe, 0x53285999, + 0x0b36f0b1, 0x8a139596, 0xbb0ba2e1, 0x3a2ec7c6, 0x62306eee, + 0xe3150bc9, 0x7f6b7f3d, 0xfe4e1a1a, 0xa650b332, 0x2775d615, + 0x166de162, 0x97488445, 0xcf562d6d, 0x4e73484a, 0xad664383, + 0x2c4326a4, 0x745d8f8c, 0xf578eaab, 0xc460dddc, 0x4545b8fb, + 0x1d5b11d3, 0x9c7e74f4, 0xfed6fe7a, 0x7ff39b5d, 0x27ed3275, + 0xa6c85752, 0x97d06025, 0x16f50502, 0x4eebac2a, 0xcfcec90d, + 0x2cdbc2c4, 0xadfea7e3, 0xf5e00ecb, 0x74c56bec, 0x45dd5c9b, + 0xc4f839bc, 0x9ce69094, 0x1dc3f5b3, 0x81bd8147, 0x0098e460, + 0x58864d48, 0xd9a3286f, 0xe8bb1f18, 0x699e7a3f, 0x3180d317, + 0xb0a5b630, 0x53b0bdf9, 0xd295d8de, 0x8a8b71f6, 0x0bae14d1, + 0x3ab623a6, 0xbb934681, 0xe38defa9, 0x62a88a8e, 0x26dcfab5, + 0xa7f99f92, 0xffe736ba, 0x7ec2539d, 0x4fda64ea, 0xceff01cd, + 0x96e1a8e5, 0x17c4cdc2, 0xf4d1c60b, 0x75f4a32c, 0x2dea0a04, + 0xaccf6f23, 0x9dd75854, 0x1cf23d73, 0x44ec945b, 0xc5c9f17c, + 0x59b78588, 0xd892e0af, 0x808c4987, 0x01a92ca0, 0x30b11bd7, + 0xb1947ef0, 0xe98ad7d8, 0x68afb2ff, 0x8bbab936, 0x0a9fdc11, + 0x52817539, 0xd3a4101e, 0xe2bc2769, 0x6399424e, 0x3b87eb66, + 0xbaa28e41, 0xd80a04cf, 0x592f61e8, 0x0131c8c0, 0x8014ade7, + 0xb10c9a90, 0x3029ffb7, 0x6837569f, 0xe91233b8, 0x0a073871, + 0x8b225d56, 0xd33cf47e, 0x52199159, 0x6301a62e, 0xe224c309, + 0xba3a6a21, 0x3b1f0f06, 0xa7617bf2, 0x26441ed5, 0x7e5ab7fd, + 0xff7fd2da, 0xce67e5ad, 0x4f42808a, 0x175c29a2, 0x96794c85, + 0x756c474c, 0xf449226b, 0xac578b43, 0x2d72ee64, 0x1c6ad913, + 0x9d4fbc34, 0xc551151c, 0x4474703b, 0x4db9f56a, 0xcc9c904d, + 0x94823965, 0x15a75c42, 0x24bf6b35, 0xa59a0e12, 0xfd84a73a, + 0x7ca1c21d, 0x9fb4c9d4, 0x1e91acf3, 0x468f05db, 0xc7aa60fc, + 0xf6b2578b, 0x779732ac, 0x2f899b84, 0xaeacfea3, 0x32d28a57, + 0xb3f7ef70, 0xebe94658, 0x6acc237f, 0x5bd41408, 0xdaf1712f, + 0x82efd807, 0x03cabd20, 0xe0dfb6e9, 0x61fad3ce, 0x39e47ae6, + 0xb8c11fc1, 0x89d928b6, 0x08fc4d91, 0x50e2e4b9, 0xd1c7819e, + 0xb36f0b10, 0x324a6e37, 0x6a54c71f, 0xeb71a238, 0xda69954f, + 0x5b4cf068, 0x03525940, 0x82773c67, 0x616237ae, 0xe0475289, + 0xb859fba1, 0x397c9e86, 0x0864a9f1, 0x8941ccd6, 0xd15f65fe, + 0x507a00d9, 0xcc04742d, 0x4d21110a, 0x153fb822, 0x941add05, + 0xa502ea72, 0x24278f55, 0x7c39267d, 0xfd1c435a, 0x1e094893, + 0x9f2c2db4, 0xc732849c, 0x4617e1bb, 0x770fd6cc, 0xf62ab3eb, + 0xae341ac3, 0x2f117fe4, 0x6b650fdf, 0xea406af8, 0xb25ec3d0, + 0x337ba6f7, 0x02639180, 0x8346f4a7, 0xdb585d8f, 0x5a7d38a8, + 0xb9683361, 0x384d5646, 0x6053ff6e, 0xe1769a49, 0xd06ead3e, + 0x514bc819, 0x09556131, 0x88700416, 0x140e70e2, 0x952b15c5, + 0xcd35bced, 0x4c10d9ca, 0x7d08eebd, 0xfc2d8b9a, 0xa43322b2, + 0x25164795, 0xc6034c5c, 0x4726297b, 0x1f388053, 0x9e1de574, + 0xaf05d203, 0x2e20b724, 0x763e1e0c, 0xf71b7b2b, 0x95b3f1a5, + 0x14969482, 0x4c883daa, 0xcdad588d, 0xfcb56ffa, 0x7d900add, + 0x258ea3f5, 0xa4abc6d2, 0x47becd1b, 0xc69ba83c, 0x9e850114, + 0x1fa06433, 0x2eb85344, 0xaf9d3663, 0xf7839f4b, 0x76a6fa6c, + 0xead88e98, 0x6bfdebbf, 0x33e34297, 0xb2c627b0, 0x83de10c7, + 0x02fb75e0, 0x5ae5dcc8, 0xdbc0b9ef, 0x38d5b226, 0xb9f0d701, + 0xe1ee7e29, 0x60cb1b0e, 0x51d32c79, 0xd0f6495e, 0x88e8e076, + 0x09cd8551}, + {0x00000000, 0x9b73ead4, 0xed96d3e9, 0x76e5393d, 0x005ca193, + 0x9b2f4b47, 0xedca727a, 0x76b998ae, 0x00b94326, 0x9bcaa9f2, + 0xed2f90cf, 0x765c7a1b, 0x00e5e2b5, 0x9b960861, 0xed73315c, + 0x7600db88, 0x0172864c, 0x9a016c98, 0xece455a5, 0x7797bf71, + 0x012e27df, 0x9a5dcd0b, 0xecb8f436, 0x77cb1ee2, 0x01cbc56a, + 0x9ab82fbe, 0xec5d1683, 0x772efc57, 0x019764f9, 0x9ae48e2d, + 0xec01b710, 0x77725dc4, 0x02e50c98, 0x9996e64c, 0xef73df71, + 0x740035a5, 0x02b9ad0b, 0x99ca47df, 0xef2f7ee2, 0x745c9436, + 0x025c4fbe, 0x992fa56a, 0xefca9c57, 0x74b97683, 0x0200ee2d, + 0x997304f9, 0xef963dc4, 0x74e5d710, 0x03978ad4, 0x98e46000, + 0xee01593d, 0x7572b3e9, 0x03cb2b47, 0x98b8c193, 0xee5df8ae, + 0x752e127a, 0x032ec9f2, 0x985d2326, 0xeeb81a1b, 0x75cbf0cf, + 0x03726861, 0x980182b5, 0xeee4bb88, 0x7597515c, 0x05ca1930, + 0x9eb9f3e4, 0xe85ccad9, 0x732f200d, 0x0596b8a3, 0x9ee55277, + 0xe8006b4a, 0x7373819e, 0x05735a16, 0x9e00b0c2, 0xe8e589ff, + 0x7396632b, 0x052ffb85, 0x9e5c1151, 0xe8b9286c, 0x73cac2b8, + 0x04b89f7c, 0x9fcb75a8, 0xe92e4c95, 0x725da641, 0x04e43eef, + 0x9f97d43b, 0xe972ed06, 0x720107d2, 0x0401dc5a, 0x9f72368e, + 0xe9970fb3, 0x72e4e567, 0x045d7dc9, 0x9f2e971d, 0xe9cbae20, + 0x72b844f4, 0x072f15a8, 0x9c5cff7c, 0xeab9c641, 0x71ca2c95, + 0x0773b43b, 0x9c005eef, 0xeae567d2, 0x71968d06, 0x0796568e, + 0x9ce5bc5a, 0xea008567, 0x71736fb3, 0x07caf71d, 0x9cb91dc9, + 0xea5c24f4, 0x712fce20, 0x065d93e4, 0x9d2e7930, 0xebcb400d, + 0x70b8aad9, 0x06013277, 0x9d72d8a3, 0xeb97e19e, 0x70e40b4a, + 0x06e4d0c2, 0x9d973a16, 0xeb72032b, 0x7001e9ff, 0x06b87151, + 0x9dcb9b85, 0xeb2ea2b8, 0x705d486c, 0x0b943260, 0x90e7d8b4, + 0xe602e189, 0x7d710b5d, 0x0bc893f3, 0x90bb7927, 0xe65e401a, + 0x7d2daace, 0x0b2d7146, 0x905e9b92, 0xe6bba2af, 0x7dc8487b, + 0x0b71d0d5, 0x90023a01, 0xe6e7033c, 0x7d94e9e8, 0x0ae6b42c, + 0x91955ef8, 0xe77067c5, 0x7c038d11, 0x0aba15bf, 0x91c9ff6b, + 0xe72cc656, 0x7c5f2c82, 0x0a5ff70a, 0x912c1dde, 0xe7c924e3, + 0x7cbace37, 0x0a035699, 0x9170bc4d, 0xe7958570, 0x7ce66fa4, + 0x09713ef8, 0x9202d42c, 0xe4e7ed11, 0x7f9407c5, 0x092d9f6b, + 0x925e75bf, 0xe4bb4c82, 0x7fc8a656, 0x09c87dde, 0x92bb970a, + 0xe45eae37, 0x7f2d44e3, 0x0994dc4d, 0x92e73699, 0xe4020fa4, + 0x7f71e570, 0x0803b8b4, 0x93705260, 0xe5956b5d, 0x7ee68189, + 0x085f1927, 0x932cf3f3, 0xe5c9cace, 0x7eba201a, 0x08bafb92, + 0x93c91146, 0xe52c287b, 0x7e5fc2af, 0x08e65a01, 0x9395b0d5, + 0xe57089e8, 0x7e03633c, 0x0e5e2b50, 0x952dc184, 0xe3c8f8b9, + 0x78bb126d, 0x0e028ac3, 0x95716017, 0xe394592a, 0x78e7b3fe, + 0x0ee76876, 0x959482a2, 0xe371bb9f, 0x7802514b, 0x0ebbc9e5, + 0x95c82331, 0xe32d1a0c, 0x785ef0d8, 0x0f2cad1c, 0x945f47c8, + 0xe2ba7ef5, 0x79c99421, 0x0f700c8f, 0x9403e65b, 0xe2e6df66, + 0x799535b2, 0x0f95ee3a, 0x94e604ee, 0xe2033dd3, 0x7970d707, + 0x0fc94fa9, 0x94baa57d, 0xe25f9c40, 0x792c7694, 0x0cbb27c8, + 0x97c8cd1c, 0xe12df421, 0x7a5e1ef5, 0x0ce7865b, 0x97946c8f, + 0xe17155b2, 0x7a02bf66, 0x0c0264ee, 0x97718e3a, 0xe194b707, + 0x7ae75dd3, 0x0c5ec57d, 0x972d2fa9, 0xe1c81694, 0x7abbfc40, + 0x0dc9a184, 0x96ba4b50, 0xe05f726d, 0x7b2c98b9, 0x0d950017, + 0x96e6eac3, 0xe003d3fe, 0x7b70392a, 0x0d70e2a2, 0x96030876, + 0xe0e6314b, 0x7b95db9f, 0x0d2c4331, 0x965fa9e5, 0xe0ba90d8, + 0x7bc97a0c}, + {0x00000000, 0x172864c0, 0x2e50c980, 0x3978ad40, 0x5ca19300, + 0x4b89f7c0, 0x72f15a80, 0x65d93e40, 0xb9432600, 0xae6b42c0, + 0x9713ef80, 0x803b8b40, 0xe5e2b500, 0xf2cad1c0, 0xcbb27c80, + 0xdc9a1840, 0xa9f74a41, 0xbedf2e81, 0x87a783c1, 0x908fe701, + 0xf556d941, 0xe27ebd81, 0xdb0610c1, 0xcc2e7401, 0x10b46c41, + 0x079c0881, 0x3ee4a5c1, 0x29ccc101, 0x4c15ff41, 0x5b3d9b81, + 0x624536c1, 0x756d5201, 0x889f92c3, 0x9fb7f603, 0xa6cf5b43, + 0xb1e73f83, 0xd43e01c3, 0xc3166503, 0xfa6ec843, 0xed46ac83, + 0x31dcb4c3, 0x26f4d003, 0x1f8c7d43, 0x08a41983, 0x6d7d27c3, + 0x7a554303, 0x432dee43, 0x54058a83, 0x2168d882, 0x3640bc42, + 0x0f381102, 0x181075c2, 0x7dc94b82, 0x6ae12f42, 0x53998202, + 0x44b1e6c2, 0x982bfe82, 0x8f039a42, 0xb67b3702, 0xa15353c2, + 0xc48a6d82, 0xd3a20942, 0xeadaa402, 0xfdf2c0c2, 0xca4e23c7, + 0xdd664707, 0xe41eea47, 0xf3368e87, 0x96efb0c7, 0x81c7d407, + 0xb8bf7947, 0xaf971d87, 0x730d05c7, 0x64256107, 0x5d5dcc47, + 0x4a75a887, 0x2fac96c7, 0x3884f207, 0x01fc5f47, 0x16d43b87, + 0x63b96986, 0x74910d46, 0x4de9a006, 0x5ac1c4c6, 0x3f18fa86, + 0x28309e46, 0x11483306, 0x066057c6, 0xdafa4f86, 0xcdd22b46, + 0xf4aa8606, 0xe382e2c6, 0x865bdc86, 0x9173b846, 0xa80b1506, + 0xbf2371c6, 0x42d1b104, 0x55f9d5c4, 0x6c817884, 0x7ba91c44, + 0x1e702204, 0x095846c4, 0x3020eb84, 0x27088f44, 0xfb929704, + 0xecbaf3c4, 0xd5c25e84, 0xc2ea3a44, 0xa7330404, 0xb01b60c4, + 0x8963cd84, 0x9e4ba944, 0xeb26fb45, 0xfc0e9f85, 0xc57632c5, + 0xd25e5605, 0xb7876845, 0xa0af0c85, 0x99d7a1c5, 0x8effc505, + 0x5265dd45, 0x454db985, 0x7c3514c5, 0x6b1d7005, 0x0ec44e45, + 0x19ec2a85, 0x209487c5, 0x37bce305, 0x4fed41cf, 0x58c5250f, + 0x61bd884f, 0x7695ec8f, 0x134cd2cf, 0x0464b60f, 0x3d1c1b4f, + 0x2a347f8f, 0xf6ae67cf, 0xe186030f, 0xd8feae4f, 0xcfd6ca8f, + 0xaa0ff4cf, 0xbd27900f, 0x845f3d4f, 0x9377598f, 0xe61a0b8e, + 0xf1326f4e, 0xc84ac20e, 0xdf62a6ce, 0xbabb988e, 0xad93fc4e, + 0x94eb510e, 0x83c335ce, 0x5f592d8e, 0x4871494e, 0x7109e40e, + 0x662180ce, 0x03f8be8e, 0x14d0da4e, 0x2da8770e, 0x3a8013ce, + 0xc772d30c, 0xd05ab7cc, 0xe9221a8c, 0xfe0a7e4c, 0x9bd3400c, + 0x8cfb24cc, 0xb583898c, 0xa2abed4c, 0x7e31f50c, 0x691991cc, + 0x50613c8c, 0x4749584c, 0x2290660c, 0x35b802cc, 0x0cc0af8c, + 0x1be8cb4c, 0x6e85994d, 0x79adfd8d, 0x40d550cd, 0x57fd340d, + 0x32240a4d, 0x250c6e8d, 0x1c74c3cd, 0x0b5ca70d, 0xd7c6bf4d, + 0xc0eedb8d, 0xf99676cd, 0xeebe120d, 0x8b672c4d, 0x9c4f488d, + 0xa537e5cd, 0xb21f810d, 0x85a36208, 0x928b06c8, 0xabf3ab88, + 0xbcdbcf48, 0xd902f108, 0xce2a95c8, 0xf7523888, 0xe07a5c48, + 0x3ce04408, 0x2bc820c8, 0x12b08d88, 0x0598e948, 0x6041d708, + 0x7769b3c8, 0x4e111e88, 0x59397a48, 0x2c542849, 0x3b7c4c89, + 0x0204e1c9, 0x152c8509, 0x70f5bb49, 0x67dddf89, 0x5ea572c9, + 0x498d1609, 0x95170e49, 0x823f6a89, 0xbb47c7c9, 0xac6fa309, + 0xc9b69d49, 0xde9ef989, 0xe7e654c9, 0xf0ce3009, 0x0d3cf0cb, + 0x1a14940b, 0x236c394b, 0x34445d8b, 0x519d63cb, 0x46b5070b, + 0x7fcdaa4b, 0x68e5ce8b, 0xb47fd6cb, 0xa357b20b, 0x9a2f1f4b, + 0x8d077b8b, 0xe8de45cb, 0xfff6210b, 0xc68e8c4b, 0xd1a6e88b, + 0xa4cbba8a, 0xb3e3de4a, 0x8a9b730a, 0x9db317ca, 0xf86a298a, + 0xef424d4a, 0xd63ae00a, 0xc11284ca, 0x1d889c8a, 0x0aa0f84a, + 0x33d8550a, 0x24f031ca, 0x41290f8a, 0x56016b4a, 0x6f79c60a, + 0x7851a2ca}, + {0x00000000, 0x9fda839e, 0xe4c4017d, 0x7b1e82e3, 0x12f904bb, + 0x8d238725, 0xf63d05c6, 0x69e78658, 0x25f20976, 0xba288ae8, + 0xc136080b, 0x5eec8b95, 0x370b0dcd, 0xa8d18e53, 0xd3cf0cb0, + 0x4c158f2e, 0x4be412ec, 0xd43e9172, 0xaf201391, 0x30fa900f, + 0x591d1657, 0xc6c795c9, 0xbdd9172a, 0x220394b4, 0x6e161b9a, + 0xf1cc9804, 0x8ad21ae7, 0x15089979, 0x7cef1f21, 0xe3359cbf, + 0x982b1e5c, 0x07f19dc2, 0x97c825d8, 0x0812a646, 0x730c24a5, + 0xecd6a73b, 0x85312163, 0x1aeba2fd, 0x61f5201e, 0xfe2fa380, + 0xb23a2cae, 0x2de0af30, 0x56fe2dd3, 0xc924ae4d, 0xa0c32815, + 0x3f19ab8b, 0x44072968, 0xdbddaaf6, 0xdc2c3734, 0x43f6b4aa, + 0x38e83649, 0xa732b5d7, 0xced5338f, 0x510fb011, 0x2a1132f2, + 0xb5cbb16c, 0xf9de3e42, 0x6604bddc, 0x1d1a3f3f, 0x82c0bca1, + 0xeb273af9, 0x74fdb967, 0x0fe33b84, 0x9039b81a, 0xf4e14df1, + 0x6b3bce6f, 0x10254c8c, 0x8fffcf12, 0xe618494a, 0x79c2cad4, + 0x02dc4837, 0x9d06cba9, 0xd1134487, 0x4ec9c719, 0x35d745fa, + 0xaa0dc664, 0xc3ea403c, 0x5c30c3a2, 0x272e4141, 0xb8f4c2df, + 0xbf055f1d, 0x20dfdc83, 0x5bc15e60, 0xc41bddfe, 0xadfc5ba6, + 0x3226d838, 0x49385adb, 0xd6e2d945, 0x9af7566b, 0x052dd5f5, + 0x7e335716, 0xe1e9d488, 0x880e52d0, 0x17d4d14e, 0x6cca53ad, + 0xf310d033, 0x63296829, 0xfcf3ebb7, 0x87ed6954, 0x1837eaca, + 0x71d06c92, 0xee0aef0c, 0x95146def, 0x0aceee71, 0x46db615f, + 0xd901e2c1, 0xa21f6022, 0x3dc5e3bc, 0x542265e4, 0xcbf8e67a, + 0xb0e66499, 0x2f3ce707, 0x28cd7ac5, 0xb717f95b, 0xcc097bb8, + 0x53d3f826, 0x3a347e7e, 0xa5eefde0, 0xdef07f03, 0x412afc9d, + 0x0d3f73b3, 0x92e5f02d, 0xe9fb72ce, 0x7621f150, 0x1fc67708, + 0x801cf496, 0xfb027675, 0x64d8f5eb, 0x32b39da3, 0xad691e3d, + 0xd6779cde, 0x49ad1f40, 0x204a9918, 0xbf901a86, 0xc48e9865, + 0x5b541bfb, 0x174194d5, 0x889b174b, 0xf38595a8, 0x6c5f1636, + 0x05b8906e, 0x9a6213f0, 0xe17c9113, 0x7ea6128d, 0x79578f4f, + 0xe68d0cd1, 0x9d938e32, 0x02490dac, 0x6bae8bf4, 0xf474086a, + 0x8f6a8a89, 0x10b00917, 0x5ca58639, 0xc37f05a7, 0xb8618744, + 0x27bb04da, 0x4e5c8282, 0xd186011c, 0xaa9883ff, 0x35420061, + 0xa57bb87b, 0x3aa13be5, 0x41bfb906, 0xde653a98, 0xb782bcc0, + 0x28583f5e, 0x5346bdbd, 0xcc9c3e23, 0x8089b10d, 0x1f533293, + 0x644db070, 0xfb9733ee, 0x9270b5b6, 0x0daa3628, 0x76b4b4cb, + 0xe96e3755, 0xee9faa97, 0x71452909, 0x0a5babea, 0x95812874, + 0xfc66ae2c, 0x63bc2db2, 0x18a2af51, 0x87782ccf, 0xcb6da3e1, + 0x54b7207f, 0x2fa9a29c, 0xb0732102, 0xd994a75a, 0x464e24c4, + 0x3d50a627, 0xa28a25b9, 0xc652d052, 0x598853cc, 0x2296d12f, + 0xbd4c52b1, 0xd4abd4e9, 0x4b715777, 0x306fd594, 0xafb5560a, + 0xe3a0d924, 0x7c7a5aba, 0x0764d859, 0x98be5bc7, 0xf159dd9f, + 0x6e835e01, 0x159ddce2, 0x8a475f7c, 0x8db6c2be, 0x126c4120, + 0x6972c3c3, 0xf6a8405d, 0x9f4fc605, 0x0095459b, 0x7b8bc778, + 0xe45144e6, 0xa844cbc8, 0x379e4856, 0x4c80cab5, 0xd35a492b, + 0xbabdcf73, 0x25674ced, 0x5e79ce0e, 0xc1a34d90, 0x519af58a, + 0xce407614, 0xb55ef4f7, 0x2a847769, 0x4363f131, 0xdcb972af, + 0xa7a7f04c, 0x387d73d2, 0x7468fcfc, 0xebb27f62, 0x90acfd81, + 0x0f767e1f, 0x6691f847, 0xf94b7bd9, 0x8255f93a, 0x1d8f7aa4, + 0x1a7ee766, 0x85a464f8, 0xfebae61b, 0x61606585, 0x0887e3dd, + 0x975d6043, 0xec43e2a0, 0x7399613e, 0x3f8cee10, 0xa0566d8e, + 0xdb48ef6d, 0x44926cf3, 0x2d75eaab, 0xb2af6935, 0xc9b1ebd6, + 0x566b6848}}; + +local const z_word_t FAR crc_braid_big_table[][256] = { + {0x00000000, 0x9e83da9f, 0x7d01c4e4, 0xe3821e7b, 0xbb04f912, + 0x2587238d, 0xc6053df6, 0x5886e769, 0x7609f225, 0xe88a28ba, + 0x0b0836c1, 0x958bec5e, 0xcd0d0b37, 0x538ed1a8, 0xb00ccfd3, + 0x2e8f154c, 0xec12e44b, 0x72913ed4, 0x911320af, 0x0f90fa30, + 0x57161d59, 0xc995c7c6, 0x2a17d9bd, 0xb4940322, 0x9a1b166e, + 0x0498ccf1, 0xe71ad28a, 0x79990815, 0x211fef7c, 0xbf9c35e3, + 0x5c1e2b98, 0xc29df107, 0xd825c897, 0x46a61208, 0xa5240c73, + 0x3ba7d6ec, 0x63213185, 0xfda2eb1a, 0x1e20f561, 0x80a32ffe, + 0xae2c3ab2, 0x30afe02d, 0xd32dfe56, 0x4dae24c9, 0x1528c3a0, + 0x8bab193f, 0x68290744, 0xf6aadddb, 0x34372cdc, 0xaab4f643, + 0x4936e838, 0xd7b532a7, 0x8f33d5ce, 0x11b00f51, 0xf232112a, + 0x6cb1cbb5, 0x423edef9, 0xdcbd0466, 0x3f3f1a1d, 0xa1bcc082, + 0xf93a27eb, 0x67b9fd74, 0x843be30f, 0x1ab83990, 0xf14de1f4, + 0x6fce3b6b, 0x8c4c2510, 0x12cfff8f, 0x4a4918e6, 0xd4cac279, + 0x3748dc02, 0xa9cb069d, 0x874413d1, 0x19c7c94e, 0xfa45d735, + 0x64c60daa, 0x3c40eac3, 0xa2c3305c, 0x41412e27, 0xdfc2f4b8, + 0x1d5f05bf, 0x83dcdf20, 0x605ec15b, 0xfedd1bc4, 0xa65bfcad, + 0x38d82632, 0xdb5a3849, 0x45d9e2d6, 0x6b56f79a, 0xf5d52d05, + 0x1657337e, 0x88d4e9e1, 0xd0520e88, 0x4ed1d417, 0xad53ca6c, + 0x33d010f3, 0x29682963, 0xb7ebf3fc, 0x5469ed87, 0xcaea3718, + 0x926cd071, 0x0cef0aee, 0xef6d1495, 0x71eece0a, 0x5f61db46, + 0xc1e201d9, 0x22601fa2, 0xbce3c53d, 0xe4652254, 0x7ae6f8cb, + 0x9964e6b0, 0x07e73c2f, 0xc57acd28, 0x5bf917b7, 0xb87b09cc, + 0x26f8d353, 0x7e7e343a, 0xe0fdeea5, 0x037ff0de, 0x9dfc2a41, + 0xb3733f0d, 0x2df0e592, 0xce72fbe9, 0x50f12176, 0x0877c61f, + 0x96f41c80, 0x757602fb, 0xebf5d864, 0xa39db332, 0x3d1e69ad, + 0xde9c77d6, 0x401fad49, 0x18994a20, 0x861a90bf, 0x65988ec4, + 0xfb1b545b, 0xd5944117, 0x4b179b88, 0xa89585f3, 0x36165f6c, + 0x6e90b805, 0xf013629a, 0x13917ce1, 0x8d12a67e, 0x4f8f5779, + 0xd10c8de6, 0x328e939d, 0xac0d4902, 0xf48bae6b, 0x6a0874f4, + 0x898a6a8f, 0x1709b010, 0x3986a55c, 0xa7057fc3, 0x448761b8, + 0xda04bb27, 0x82825c4e, 0x1c0186d1, 0xff8398aa, 0x61004235, + 0x7bb87ba5, 0xe53ba13a, 0x06b9bf41, 0x983a65de, 0xc0bc82b7, + 0x5e3f5828, 0xbdbd4653, 0x233e9ccc, 0x0db18980, 0x9332531f, + 0x70b04d64, 0xee3397fb, 0xb6b57092, 0x2836aa0d, 0xcbb4b476, + 0x55376ee9, 0x97aa9fee, 0x09294571, 0xeaab5b0a, 0x74288195, + 0x2cae66fc, 0xb22dbc63, 0x51afa218, 0xcf2c7887, 0xe1a36dcb, + 0x7f20b754, 0x9ca2a92f, 0x022173b0, 0x5aa794d9, 0xc4244e46, + 0x27a6503d, 0xb9258aa2, 0x52d052c6, 0xcc538859, 0x2fd19622, + 0xb1524cbd, 0xe9d4abd4, 0x7757714b, 0x94d56f30, 0x0a56b5af, + 0x24d9a0e3, 0xba5a7a7c, 0x59d86407, 0xc75bbe98, 0x9fdd59f1, + 0x015e836e, 0xe2dc9d15, 0x7c5f478a, 0xbec2b68d, 0x20416c12, + 0xc3c37269, 0x5d40a8f6, 0x05c64f9f, 0x9b459500, 0x78c78b7b, + 0xe64451e4, 0xc8cb44a8, 0x56489e37, 0xb5ca804c, 0x2b495ad3, + 0x73cfbdba, 0xed4c6725, 0x0ece795e, 0x904da3c1, 0x8af59a51, + 0x147640ce, 0xf7f45eb5, 0x6977842a, 0x31f16343, 0xaf72b9dc, + 0x4cf0a7a7, 0xd2737d38, 0xfcfc6874, 0x627fb2eb, 0x81fdac90, + 0x1f7e760f, 0x47f89166, 0xd97b4bf9, 0x3af95582, 0xa47a8f1d, + 0x66e77e1a, 0xf864a485, 0x1be6bafe, 0x85656061, 0xdde38708, + 0x43605d97, 0xa0e243ec, 0x3e619973, 0x10ee8c3f, 0x8e6d56a0, + 0x6def48db, 0xf36c9244, 0xabea752d, 0x3569afb2, 0xd6ebb1c9, + 0x48686b56}, + {0x00000000, 0xc0642817, 0x80c9502e, 0x40ad7839, 0x0093a15c, + 0xc0f7894b, 0x805af172, 0x403ed965, 0x002643b9, 0xc0426bae, + 0x80ef1397, 0x408b3b80, 0x00b5e2e5, 0xc0d1caf2, 0x807cb2cb, + 0x40189adc, 0x414af7a9, 0x812edfbe, 0xc183a787, 0x01e78f90, + 0x41d956f5, 0x81bd7ee2, 0xc11006db, 0x01742ecc, 0x416cb410, + 0x81089c07, 0xc1a5e43e, 0x01c1cc29, 0x41ff154c, 0x819b3d5b, + 0xc1364562, 0x01526d75, 0xc3929f88, 0x03f6b79f, 0x435bcfa6, + 0x833fe7b1, 0xc3013ed4, 0x036516c3, 0x43c86efa, 0x83ac46ed, + 0xc3b4dc31, 0x03d0f426, 0x437d8c1f, 0x8319a408, 0xc3277d6d, + 0x0343557a, 0x43ee2d43, 0x838a0554, 0x82d86821, 0x42bc4036, + 0x0211380f, 0xc2751018, 0x824bc97d, 0x422fe16a, 0x02829953, + 0xc2e6b144, 0x82fe2b98, 0x429a038f, 0x02377bb6, 0xc25353a1, + 0x826d8ac4, 0x4209a2d3, 0x02a4daea, 0xc2c0f2fd, 0xc7234eca, + 0x074766dd, 0x47ea1ee4, 0x878e36f3, 0xc7b0ef96, 0x07d4c781, + 0x4779bfb8, 0x871d97af, 0xc7050d73, 0x07612564, 0x47cc5d5d, + 0x87a8754a, 0xc796ac2f, 0x07f28438, 0x475ffc01, 0x873bd416, + 0x8669b963, 0x460d9174, 0x06a0e94d, 0xc6c4c15a, 0x86fa183f, + 0x469e3028, 0x06334811, 0xc6576006, 0x864ffada, 0x462bd2cd, + 0x0686aaf4, 0xc6e282e3, 0x86dc5b86, 0x46b87391, 0x06150ba8, + 0xc67123bf, 0x04b1d142, 0xc4d5f955, 0x8478816c, 0x441ca97b, + 0x0422701e, 0xc4465809, 0x84eb2030, 0x448f0827, 0x049792fb, + 0xc4f3baec, 0x845ec2d5, 0x443aeac2, 0x040433a7, 0xc4601bb0, + 0x84cd6389, 0x44a94b9e, 0x45fb26eb, 0x859f0efc, 0xc53276c5, + 0x05565ed2, 0x456887b7, 0x850cafa0, 0xc5a1d799, 0x05c5ff8e, + 0x45dd6552, 0x85b94d45, 0xc514357c, 0x05701d6b, 0x454ec40e, + 0x852aec19, 0xc5879420, 0x05e3bc37, 0xcf41ed4f, 0x0f25c558, + 0x4f88bd61, 0x8fec9576, 0xcfd24c13, 0x0fb66404, 0x4f1b1c3d, + 0x8f7f342a, 0xcf67aef6, 0x0f0386e1, 0x4faefed8, 0x8fcad6cf, + 0xcff40faa, 0x0f9027bd, 0x4f3d5f84, 0x8f597793, 0x8e0b1ae6, + 0x4e6f32f1, 0x0ec24ac8, 0xcea662df, 0x8e98bbba, 0x4efc93ad, + 0x0e51eb94, 0xce35c383, 0x8e2d595f, 0x4e497148, 0x0ee40971, + 0xce802166, 0x8ebef803, 0x4edad014, 0x0e77a82d, 0xce13803a, + 0x0cd372c7, 0xccb75ad0, 0x8c1a22e9, 0x4c7e0afe, 0x0c40d39b, + 0xcc24fb8c, 0x8c8983b5, 0x4cedaba2, 0x0cf5317e, 0xcc911969, + 0x8c3c6150, 0x4c584947, 0x0c669022, 0xcc02b835, 0x8cafc00c, + 0x4ccbe81b, 0x4d99856e, 0x8dfdad79, 0xcd50d540, 0x0d34fd57, + 0x4d0a2432, 0x8d6e0c25, 0xcdc3741c, 0x0da75c0b, 0x4dbfc6d7, + 0x8ddbeec0, 0xcd7696f9, 0x0d12beee, 0x4d2c678b, 0x8d484f9c, + 0xcde537a5, 0x0d811fb2, 0x0862a385, 0xc8068b92, 0x88abf3ab, + 0x48cfdbbc, 0x08f102d9, 0xc8952ace, 0x883852f7, 0x485c7ae0, + 0x0844e03c, 0xc820c82b, 0x888db012, 0x48e99805, 0x08d74160, + 0xc8b36977, 0x881e114e, 0x487a3959, 0x4928542c, 0x894c7c3b, + 0xc9e10402, 0x09852c15, 0x49bbf570, 0x89dfdd67, 0xc972a55e, + 0x09168d49, 0x490e1795, 0x896a3f82, 0xc9c747bb, 0x09a36fac, + 0x499db6c9, 0x89f99ede, 0xc954e6e7, 0x0930cef0, 0xcbf03c0d, + 0x0b94141a, 0x4b396c23, 0x8b5d4434, 0xcb639d51, 0x0b07b546, + 0x4baacd7f, 0x8bcee568, 0xcbd67fb4, 0x0bb257a3, 0x4b1f2f9a, + 0x8b7b078d, 0xcb45dee8, 0x0b21f6ff, 0x4b8c8ec6, 0x8be8a6d1, + 0x8abacba4, 0x4adee3b3, 0x0a739b8a, 0xca17b39d, 0x8a296af8, + 0x4a4d42ef, 0x0ae03ad6, 0xca8412c1, 0x8a9c881d, 0x4af8a00a, + 0x0a55d833, 0xca31f024, 0x8a0f2941, 0x4a6b0156, 0x0ac6796f, + 0xcaa25178}, + {0x00000000, 0xd4ea739b, 0xe9d396ed, 0x3d39e576, 0x93a15c00, + 0x474b2f9b, 0x7a72caed, 0xae98b976, 0x2643b900, 0xf2a9ca9b, + 0xcf902fed, 0x1b7a5c76, 0xb5e2e500, 0x6108969b, 0x5c3173ed, + 0x88db0076, 0x4c867201, 0x986c019a, 0xa555e4ec, 0x71bf9777, + 0xdf272e01, 0x0bcd5d9a, 0x36f4b8ec, 0xe21ecb77, 0x6ac5cb01, + 0xbe2fb89a, 0x83165dec, 0x57fc2e77, 0xf9649701, 0x2d8ee49a, + 0x10b701ec, 0xc45d7277, 0x980ce502, 0x4ce69699, 0x71df73ef, + 0xa5350074, 0x0badb902, 0xdf47ca99, 0xe27e2fef, 0x36945c74, + 0xbe4f5c02, 0x6aa52f99, 0x579ccaef, 0x8376b974, 0x2dee0002, + 0xf9047399, 0xc43d96ef, 0x10d7e574, 0xd48a9703, 0x0060e498, + 0x3d5901ee, 0xe9b37275, 0x472bcb03, 0x93c1b898, 0xaef85dee, + 0x7a122e75, 0xf2c92e03, 0x26235d98, 0x1b1ab8ee, 0xcff0cb75, + 0x61687203, 0xb5820198, 0x88bbe4ee, 0x5c519775, 0x3019ca05, + 0xe4f3b99e, 0xd9ca5ce8, 0x0d202f73, 0xa3b89605, 0x7752e59e, + 0x4a6b00e8, 0x9e817373, 0x165a7305, 0xc2b0009e, 0xff89e5e8, + 0x2b639673, 0x85fb2f05, 0x51115c9e, 0x6c28b9e8, 0xb8c2ca73, + 0x7c9fb804, 0xa875cb9f, 0x954c2ee9, 0x41a65d72, 0xef3ee404, + 0x3bd4979f, 0x06ed72e9, 0xd2070172, 0x5adc0104, 0x8e36729f, + 0xb30f97e9, 0x67e5e472, 0xc97d5d04, 0x1d972e9f, 0x20aecbe9, + 0xf444b872, 0xa8152f07, 0x7cff5c9c, 0x41c6b9ea, 0x952cca71, + 0x3bb47307, 0xef5e009c, 0xd267e5ea, 0x068d9671, 0x8e569607, + 0x5abce59c, 0x678500ea, 0xb36f7371, 0x1df7ca07, 0xc91db99c, + 0xf4245cea, 0x20ce2f71, 0xe4935d06, 0x30792e9d, 0x0d40cbeb, + 0xd9aab870, 0x77320106, 0xa3d8729d, 0x9ee197eb, 0x4a0be470, + 0xc2d0e406, 0x163a979d, 0x2b0372eb, 0xffe90170, 0x5171b806, + 0x859bcb9d, 0xb8a22eeb, 0x6c485d70, 0x6032940b, 0xb4d8e790, + 0x89e102e6, 0x5d0b717d, 0xf393c80b, 0x2779bb90, 0x1a405ee6, + 0xceaa2d7d, 0x46712d0b, 0x929b5e90, 0xafa2bbe6, 0x7b48c87d, + 0xd5d0710b, 0x013a0290, 0x3c03e7e6, 0xe8e9947d, 0x2cb4e60a, + 0xf85e9591, 0xc56770e7, 0x118d037c, 0xbf15ba0a, 0x6bffc991, + 0x56c62ce7, 0x822c5f7c, 0x0af75f0a, 0xde1d2c91, 0xe324c9e7, + 0x37ceba7c, 0x9956030a, 0x4dbc7091, 0x708595e7, 0xa46fe67c, + 0xf83e7109, 0x2cd40292, 0x11ede7e4, 0xc507947f, 0x6b9f2d09, + 0xbf755e92, 0x824cbbe4, 0x56a6c87f, 0xde7dc809, 0x0a97bb92, + 0x37ae5ee4, 0xe3442d7f, 0x4ddc9409, 0x9936e792, 0xa40f02e4, + 0x70e5717f, 0xb4b80308, 0x60527093, 0x5d6b95e5, 0x8981e67e, + 0x27195f08, 0xf3f32c93, 0xcecac9e5, 0x1a20ba7e, 0x92fbba08, + 0x4611c993, 0x7b282ce5, 0xafc25f7e, 0x015ae608, 0xd5b09593, + 0xe88970e5, 0x3c63037e, 0x502b5e0e, 0x84c12d95, 0xb9f8c8e3, + 0x6d12bb78, 0xc38a020e, 0x17607195, 0x2a5994e3, 0xfeb3e778, + 0x7668e70e, 0xa2829495, 0x9fbb71e3, 0x4b510278, 0xe5c9bb0e, + 0x3123c895, 0x0c1a2de3, 0xd8f05e78, 0x1cad2c0f, 0xc8475f94, + 0xf57ebae2, 0x2194c979, 0x8f0c700f, 0x5be60394, 0x66dfe6e2, + 0xb2359579, 0x3aee950f, 0xee04e694, 0xd33d03e2, 0x07d77079, + 0xa94fc90f, 0x7da5ba94, 0x409c5fe2, 0x94762c79, 0xc827bb0c, + 0x1ccdc897, 0x21f42de1, 0xf51e5e7a, 0x5b86e70c, 0x8f6c9497, + 0xb25571e1, 0x66bf027a, 0xee64020c, 0x3a8e7197, 0x07b794e1, + 0xd35de77a, 0x7dc55e0c, 0xa92f2d97, 0x9416c8e1, 0x40fcbb7a, + 0x84a1c90d, 0x504bba96, 0x6d725fe0, 0xb9982c7b, 0x1700950d, + 0xc3eae696, 0xfed303e0, 0x2a39707b, 0xa2e2700d, 0x76080396, + 0x4b31e6e0, 0x9fdb957b, 0x31432c0d, 0xe5a95f96, 0xd890bae0, + 0x0c7ac97b}, + {0x00000000, 0x27652581, 0x0fcc3bd9, 0x28a91e58, 0x5f9e0669, + 0x78fb23e8, 0x50523db0, 0x77371831, 0xbe3c0dd2, 0x99592853, + 0xb1f0360b, 0x9695138a, 0xe1a20bbb, 0xc6c72e3a, 0xee6e3062, + 0xc90b15e3, 0x3d7f6b7f, 0x1a1a4efe, 0x32b350a6, 0x15d67527, + 0x62e16d16, 0x45844897, 0x6d2d56cf, 0x4a48734e, 0x834366ad, + 0xa426432c, 0x8c8f5d74, 0xabea78f5, 0xdcdd60c4, 0xfbb84545, + 0xd3115b1d, 0xf4747e9c, 0x7afed6fe, 0x5d9bf37f, 0x7532ed27, + 0x5257c8a6, 0x2560d097, 0x0205f516, 0x2aaceb4e, 0x0dc9cecf, + 0xc4c2db2c, 0xe3a7fead, 0xcb0ee0f5, 0xec6bc574, 0x9b5cdd45, + 0xbc39f8c4, 0x9490e69c, 0xb3f5c31d, 0x4781bd81, 0x60e49800, + 0x484d8658, 0x6f28a3d9, 0x181fbbe8, 0x3f7a9e69, 0x17d38031, + 0x30b6a5b0, 0xf9bdb053, 0xded895d2, 0xf6718b8a, 0xd114ae0b, + 0xa623b63a, 0x814693bb, 0xa9ef8de3, 0x8e8aa862, 0xb5fadc26, + 0x929ff9a7, 0xba36e7ff, 0x9d53c27e, 0xea64da4f, 0xcd01ffce, + 0xe5a8e196, 0xc2cdc417, 0x0bc6d1f4, 0x2ca3f475, 0x040aea2d, + 0x236fcfac, 0x5458d79d, 0x733df21c, 0x5b94ec44, 0x7cf1c9c5, + 0x8885b759, 0xafe092d8, 0x87498c80, 0xa02ca901, 0xd71bb130, + 0xf07e94b1, 0xd8d78ae9, 0xffb2af68, 0x36b9ba8b, 0x11dc9f0a, + 0x39758152, 0x1e10a4d3, 0x6927bce2, 0x4e429963, 0x66eb873b, + 0x418ea2ba, 0xcf040ad8, 0xe8612f59, 0xc0c83101, 0xe7ad1480, + 0x909a0cb1, 0xb7ff2930, 0x9f563768, 0xb83312e9, 0x7138070a, + 0x565d228b, 0x7ef43cd3, 0x59911952, 0x2ea60163, 0x09c324e2, + 0x216a3aba, 0x060f1f3b, 0xf27b61a7, 0xd51e4426, 0xfdb75a7e, + 0xdad27fff, 0xade567ce, 0x8a80424f, 0xa2295c17, 0x854c7996, + 0x4c476c75, 0x6b2249f4, 0x438b57ac, 0x64ee722d, 0x13d96a1c, + 0x34bc4f9d, 0x1c1551c5, 0x3b707444, 0x6af5b94d, 0x4d909ccc, + 0x65398294, 0x425ca715, 0x356bbf24, 0x120e9aa5, 0x3aa784fd, + 0x1dc2a17c, 0xd4c9b49f, 0xf3ac911e, 0xdb058f46, 0xfc60aac7, + 0x8b57b2f6, 0xac329777, 0x849b892f, 0xa3feacae, 0x578ad232, + 0x70eff7b3, 0x5846e9eb, 0x7f23cc6a, 0x0814d45b, 0x2f71f1da, + 0x07d8ef82, 0x20bdca03, 0xe9b6dfe0, 0xced3fa61, 0xe67ae439, + 0xc11fc1b8, 0xb628d989, 0x914dfc08, 0xb9e4e250, 0x9e81c7d1, + 0x100b6fb3, 0x376e4a32, 0x1fc7546a, 0x38a271eb, 0x4f9569da, + 0x68f04c5b, 0x40595203, 0x673c7782, 0xae376261, 0x895247e0, + 0xa1fb59b8, 0x869e7c39, 0xf1a96408, 0xd6cc4189, 0xfe655fd1, + 0xd9007a50, 0x2d7404cc, 0x0a11214d, 0x22b83f15, 0x05dd1a94, + 0x72ea02a5, 0x558f2724, 0x7d26397c, 0x5a431cfd, 0x9348091e, + 0xb42d2c9f, 0x9c8432c7, 0xbbe11746, 0xccd60f77, 0xebb32af6, + 0xc31a34ae, 0xe47f112f, 0xdf0f656b, 0xf86a40ea, 0xd0c35eb2, + 0xf7a67b33, 0x80916302, 0xa7f44683, 0x8f5d58db, 0xa8387d5a, + 0x613368b9, 0x46564d38, 0x6eff5360, 0x499a76e1, 0x3ead6ed0, + 0x19c84b51, 0x31615509, 0x16047088, 0xe2700e14, 0xc5152b95, + 0xedbc35cd, 0xcad9104c, 0xbdee087d, 0x9a8b2dfc, 0xb22233a4, + 0x95471625, 0x5c4c03c6, 0x7b292647, 0x5380381f, 0x74e51d9e, + 0x03d205af, 0x24b7202e, 0x0c1e3e76, 0x2b7b1bf7, 0xa5f1b395, + 0x82949614, 0xaa3d884c, 0x8d58adcd, 0xfa6fb5fc, 0xdd0a907d, + 0xf5a38e25, 0xd2c6aba4, 0x1bcdbe47, 0x3ca89bc6, 0x1401859e, + 0x3364a01f, 0x4453b82e, 0x63369daf, 0x4b9f83f7, 0x6cfaa676, + 0x988ed8ea, 0xbfebfd6b, 0x9742e333, 0xb027c6b2, 0xc710de83, + 0xe075fb02, 0xc8dce55a, 0xefb9c0db, 0x26b2d538, 0x01d7f0b9, + 0x297eeee1, 0x0e1bcb60, 0x792cd351, 0x5e49f6d0, 0x76e0e888, + 0x5185cd09}}; + +#endif + +#endif + +#endif + +local const z_crc_t FAR x2n_table[] = { + 0x40000000, 0x20000000, 0x08000000, 0x00800000, 0x00008000, + 0xedb88320, 0xb1e6b092, 0xa06a2517, 0xed627dae, 0x88d14467, + 0xd7bbfe6a, 0xec447f11, 0x8e7ea170, 0x6427800e, 0x4d47bae0, + 0x09fe548f, 0x83852d0f, 0x30362f1a, 0x7b5a9cc3, 0x31fec169, + 0x9fec022a, 0x6c8dedc4, 0x15d6874d, 0x5fde7a4e, 0xbad90e37, + 0x2e4e5eef, 0x4eaba214, 0xa8a472c0, 0x429a969e, 0x148d302a, + 0xc40ba6d0, 0xc4e22c3c}; diff --git a/lib/libvgz/deflate.c b/lib/libvgz/deflate.c index e4493c125..69222e189 100644 --- a/lib/libvgz/deflate.c +++ b/lib/libvgz/deflate.c @@ -1,5 +1,5 @@ /* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler + * Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -53,7 +53,7 @@ extern const char deflate_copyright[]; const char deflate_copyright[] = - " deflate 1.2.11 Copyright 1995-2017 Jean-loup Gailly and Mark Adler "; + " deflate 1.2.12 Copyright 1995-2022 Jean-loup Gailly and Mark Adler "; /* If you use the zlib library in a product, an acknowledgment is welcome in the documentation of your product. If for some reason you cannot @@ -85,7 +85,7 @@ local block_state deflate_slow OF((deflate_state *s, int flush)); #ifdef NOVGZ local block_state deflate_rle OF((deflate_state *s, int flush)); local block_state deflate_huff OF((deflate_state *s, int flush)); -#endif +#endif /* NOVGZ */ local void lm_init OF((deflate_state *s)); local void putShortMSB OF((deflate_state *s, uInt b)); local void flush_pending OF((z_streamp strm)); @@ -193,10 +193,11 @@ local const config configuration_table[10] = { * prev[] will be initialized on the fly. */ #define CLEAR_HASH(s) \ -do { \ - s->head[s->hash_size-1] = NIL; \ - zmemzero((Bytef *)s->head, (unsigned)(s->hash_size-1)*sizeof(*s->head)); \ -} while (0) + do { \ + s->head[s->hash_size-1] = NIL; \ + zmemzero((Bytef *)s->head, \ + (unsigned)(s->hash_size-1)*sizeof(*s->head)); \ + } while (0) /* =========================================================================== * Slide the hash table when sliding the window down (could be avoided with 32 @@ -243,7 +244,7 @@ int ZEXPORT deflateInit_(strm, level, version, stream_size) /* To do: ignore strm->next_in if we use it as window */ } -#endif +#endif /* NOVGZ */ /* ========================================================================= */ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, @@ -261,14 +262,6 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, int wrap = 1; static const char my_version[] = ZLIB_VERSION; - ushf *overlay; - /* We overlay pending_buf and d_buf+l_buf. This works since the average - * output size for (length,distance) codes is <= 24 bits. - */ - - if (strategy != Z_DEFAULT_STRATEGY) - return Z_STREAM_ERROR; - if (version == Z_NULL || version[0] != my_version[0] || stream_size != sizeof(z_stream)) { return Z_VERSION_ERROR; @@ -338,9 +331,47 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, s->lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - s->pending_buf = (uchf *) overlay; - s->pending_buf_size = (ulg)s->lit_bufsize * (sizeof(ush)+2L); + /* We overlay pending_buf and sym_buf. This works since the average size + * for length/distance pairs over any compressed block is assured to be 31 + * bits or less. + * + * Analysis: The longest fixed codes are a length code of 8 bits plus 5 + * extra bits, for lengths 131 to 257. The longest fixed distance codes are + * 5 bits plus 13 extra bits, for distances 16385 to 32768. The longest + * possible fixed-codes length/distance pair is then 31 bits total. + * + * sym_buf starts one-fourth of the way into pending_buf. So there are + * three bytes in sym_buf for every four bytes in pending_buf. Each symbol + * in sym_buf is three bytes -- two for the distance and one for the + * literal/length. As each symbol is consumed, the pointer to the next + * sym_buf value to read moves forward three bytes. From that symbol, up to + * 31 bits are written to pending_buf. The closest the written pending_buf + * bits gets to the next sym_buf symbol to read is just before the last + * code is written. At that time, 31*(n-2) bits have been written, just + * after 24*(n-2) bits have been consumed from sym_buf. sym_buf starts at + * 8*n bits into pending_buf. (Note that the symbol buffer fills when n-1 + * symbols are written.) The closest the writing gets to what is unread is + * then n+14 bits. Here n is lit_bufsize, which is 16384 by default, and + * can range from 128 to 32768. + * + * Therefore, at a minimum, there are 142 bits of space between what is + * written and what is read in the overlain buffers, so the symbols cannot + * be overwritten by the compressed data. That space is actually 139 bits, + * due to the three-bit fixed-code block header. + * + * That covers the case where either Z_FIXED is specified, forcing fixed + * codes, or when the use of fixed codes is chosen, because that choice + * results in a smaller compressed block than dynamic codes. That latter + * condition then assures that the above analysis also covers all dynamic + * blocks. A dynamic-code block will only be chosen to be emitted if it has + * fewer bits than a fixed-code block would for the same set of symbols. + * Therefore its average symbol length is assured to be less than 31. So + * the compressed data for a dynamic block also cannot overwrite the + * symbols from which it is being constructed. + */ + + s->pending_buf = (uchf *) ZALLOC(strm, s->lit_bufsize, 4); + s->pending_buf_size = (ulg)s->lit_bufsize * 4; if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || s->pending_buf == Z_NULL) { @@ -349,8 +380,12 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, deflateEnd (strm); return Z_MEM_ERROR; } - s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; + s->sym_buf = s->pending_buf + s->lit_bufsize; + s->sym_end = (s->lit_bufsize - 1) * 3; + /* We avoid equality with lit_bufsize*3 because of wraparound at 64K + * on 16 bit machines and because stored blocks are restricted to + * 64K-1 bytes. + */ s->level = level; s->strategy = strategy; @@ -374,10 +409,12 @@ local int deflateStateCheck (strm) #ifdef GZIP s->status != GZIP_STATE && #endif - // s->status != EXTRA_STATE && - // s->status != NAME_STATE && - // s->status != COMMENT_STATE && - // s->status != HCRC_STATE && +#ifdef NOVGZ + s->status != EXTRA_STATE && + s->status != NAME_STATE && + s->status != COMMENT_STATE && + s->status != HCRC_STATE && +#endif /* NOVGZ */ s->status != BUSY_STATE && s->status != FINISH_STATE)) return 1; @@ -477,7 +514,7 @@ int ZEXPORT deflateGetDictionary (strm, dictionary, dictLength) return Z_OK; } -#endif +#endif /* NOVGZ */ /* ========================================================================= */ int ZEXPORT deflateResetKeep (strm) @@ -505,13 +542,13 @@ int ZEXPORT deflateResetKeep (strm) #ifdef GZIP s->wrap == 2 ? GZIP_STATE : #endif - s->wrap ? INIT_STATE : BUSY_STATE; + INIT_STATE; strm->adler = #ifdef GZIP s->wrap == 2 ? crc32(0L, Z_NULL, 0) : #endif adler32(0L, Z_NULL, 0); - s->last_flush = Z_NO_FLUSH; + s->last_flush = -2; _tr_init(s); @@ -568,7 +605,8 @@ int ZEXPORT deflatePrime (strm, bits, value) if (deflateStateCheck(strm)) return Z_STREAM_ERROR; s = strm->state; - if ((Bytef *)(s->d_buf) < s->pending_out + ((Buf_size + 7) >> 3)) + if (bits < 0 || bits > 16 || + s->sym_buf < s->pending_out + ((Buf_size + 7) >> 3)) return Z_BUF_ERROR; do { put = Buf_size - s->bi_valid; @@ -606,12 +644,12 @@ int ZEXPORT deflateParams(strm, level, strategy) func = configuration_table[s->level].func; if ((strategy != s->strategy || func != configuration_table[level].func) && - s->high_water) { + s->last_flush != -2) { /* Flush the last buffer: */ int err = deflate(strm, Z_BLOCK); if (err == Z_STREAM_ERROR) return err; - if (strm->avail_out == 0) + if (strm->avail_in || (s->strstart - s->block_start) + s->lookahead) return Z_BUF_ERROR; } if (s->level != level) { @@ -727,7 +765,7 @@ uLong ZEXPORT deflateBound(strm, sourceLen) (sourceLen >> 25) + 13 - 6 + wraplen; } -#endif +#endif /* NOVGZ */ /* ========================================================================= * Put a short in the pending buffer. The 16-bit value is put in MSB order. @@ -832,9 +870,10 @@ int ZEXPORT deflate (strm, flush) } /* Write the header */ + if (s->status == INIT_STATE && s->wrap == 0) + s->status = BUSY_STATE; if (s->status == INIT_STATE) { #ifdef NOVGZ - abort(); /* zlib header */ uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; uInt level_flags; @@ -896,9 +935,6 @@ int ZEXPORT deflate (strm, flush) } } else { - abort(); - } - } #ifdef NOVGZ put_byte(s, (s->gzhead->text ? 1 : 0) + (s->gzhead->hcrc ? 2 : 0) + @@ -1017,7 +1053,11 @@ int ZEXPORT deflate (strm, flush) return Z_OK; } } -#endif +#else /* !NOVGZ */ + abort(); + } + } +#endif /* NOVGZ */ #endif if (strm->start_bit == 0) @@ -1030,8 +1070,10 @@ int ZEXPORT deflate (strm, flush) block_state bstate; bstate = s->level == 0 ? deflate_stored(s, flush) : - // s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : - // s->strategy == Z_RLE ? deflate_rle(s, flush) : +#ifdef NOVGZ + s->strategy == Z_HUFFMAN_ONLY ? deflate_huff(s, flush) : + s->strategy == Z_RLE ? deflate_rle(s, flush) : +#endif /* NOVGZ */ (*(configuration_table[s->level].func))(s, flush); if (bstate == finish_started || bstate == finish_done) { @@ -1142,7 +1184,6 @@ int ZEXPORT deflateCopy (dest, source) #else deflate_state *ds; deflate_state *ss; - ushf *overlay; if (deflateStateCheck(source) || dest == Z_NULL) { @@ -1162,8 +1203,7 @@ int ZEXPORT deflateCopy (dest, source) ds->window = (Bytef *) ZALLOC(dest, ds->w_size, 2*sizeof(Byte)); ds->prev = (Posf *) ZALLOC(dest, ds->w_size, sizeof(Pos)); ds->head = (Posf *) ZALLOC(dest, ds->hash_size, sizeof(Pos)); - overlay = (ushf *) ZALLOC(dest, ds->lit_bufsize, sizeof(ush)+2); - ds->pending_buf = (uchf *) overlay; + ds->pending_buf = (uchf *) ZALLOC(dest, ds->lit_bufsize, 4); if (ds->window == Z_NULL || ds->prev == Z_NULL || ds->head == Z_NULL || ds->pending_buf == Z_NULL) { @@ -1177,8 +1217,7 @@ int ZEXPORT deflateCopy (dest, source) zmemcpy(ds->pending_buf, ss->pending_buf, (uInt)ds->pending_buf_size); ds->pending_out = ds->pending_buf + (ss->pending_out - ss->pending_buf); - ds->d_buf = overlay + ds->lit_bufsize/sizeof(ush); - ds->l_buf = ds->pending_buf + (1+sizeof(ush))*ds->lit_bufsize; + ds->sym_buf = ds->pending_buf + ds->lit_bufsize; ds->l_desc.dyn_tree = ds->dyn_ltree; ds->d_desc.dyn_tree = ds->dyn_dtree; @@ -1188,7 +1227,7 @@ int ZEXPORT deflateCopy (dest, source) #endif /* MAXSEG_64K */ } -#endif +#endif /* NOVGZ */ /* =========================================================================== * Read a new buffer from the current input stream, update the adler32 @@ -1549,6 +1588,8 @@ local void fill_window(s) s->match_start -= wsize; s->strstart -= wsize; /* we now have strstart >= MAX_DIST */ s->block_start -= (long) wsize; + if (s->insert > s->strstart) + s->insert = s->strstart; slide_hash(s); more += wsize; } @@ -1658,8 +1699,10 @@ local void fill_window(s) /* Maximum stored block length in deflate format (not including header). */ #define MAX_STORED 65535 +#if !defined(MIN) /* Minimum of a and b. */ #define MIN(a, b) ((a) > (b) ? (b) : (a)) +#endif /* =========================================================================== * Copy without compression as much as possible from the input stream, return @@ -1778,6 +1821,7 @@ local block_state deflate_stored(s, flush) s->matches = 2; /* clear hash */ zmemcpy(s->window, s->strm->next_in - s->w_size, s->w_size); s->strstart = s->w_size; + s->insert = s->strstart; } else { if (s->window_size - s->strstart <= used) { @@ -1786,12 +1830,14 @@ local block_state deflate_stored(s, flush) zmemcpy(s->window, s->window + s->w_size, s->strstart); if (s->matches < 2) s->matches++; /* add a pending slide_hash() */ + if (s->insert > s->strstart) + s->insert = s->strstart; } zmemcpy(s->window + s->strstart, s->strm->next_in - used, used); s->strstart += used; + s->insert += MIN(used, s->w_size - s->insert); } s->block_start = s->strstart; - s->insert += MIN(used, s->w_size - s->insert); } if (s->high_water < s->strstart) s->high_water = s->strstart; @@ -1806,7 +1852,7 @@ local block_state deflate_stored(s, flush) return block_done; /* Fill the window with any remaining input. */ - have = s->window_size - s->strstart - 1; + have = s->window_size - s->strstart; if (s->strm->avail_in > have && s->block_start >= (long)s->w_size) { /* Slide the window down. */ s->block_start -= s->w_size; @@ -1815,12 +1861,15 @@ local block_state deflate_stored(s, flush) if (s->matches < 2) s->matches++; /* add a pending slide_hash() */ have += s->w_size; /* more space now */ + if (s->insert > s->strstart) + s->insert = s->strstart; } if (have > s->strm->avail_in) have = s->strm->avail_in; if (have) { read_buf(s->strm, s->window + s->strstart, have); s->strstart += have; + s->insert += MIN(have, s->w_size - s->insert); } if (s->high_water < s->strstart) s->high_water = s->strstart; @@ -1948,7 +1997,7 @@ local block_state deflate_fast(s, flush) FLUSH_BLOCK(s, 1); return finish_done; } - if (s->last_lit) + if (s->sym_next) FLUSH_BLOCK(s, 0); return block_done; } @@ -2079,7 +2128,7 @@ local block_state deflate_slow(s, flush) FLUSH_BLOCK(s, 1); return finish_done; } - if (s->last_lit) + if (s->sym_next) FLUSH_BLOCK(s, 0); return block_done; } @@ -2156,7 +2205,7 @@ local block_state deflate_rle(s, flush) FLUSH_BLOCK(s, 1); return finish_done; } - if (s->last_lit) + if (s->sym_next) FLUSH_BLOCK(s, 0); return block_done; } @@ -2195,9 +2244,9 @@ local block_state deflate_huff(s, flush) FLUSH_BLOCK(s, 1); return finish_done; } - if (s->last_lit) + if (s->sym_next) FLUSH_BLOCK(s, 0); return block_done; } -#endif +#endif /* NOVGZ */ diff --git a/lib/libvgz/deflate.h b/lib/libvgz/deflate.h index 23ecdd312..17c226113 100644 --- a/lib/libvgz/deflate.h +++ b/lib/libvgz/deflate.h @@ -1,5 +1,5 @@ /* deflate.h -- internal compression state - * Copyright (C) 1995-2016 Jean-loup Gailly + * Copyright (C) 1995-2018 Jean-loup Gailly * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -217,7 +217,7 @@ typedef struct internal_state { /* Depth of each subtree used as tie breaker for trees of equal frequency */ - uchf *l_buf; /* buffer for literals or lengths */ + uchf *sym_buf; /* buffer for distances and literals/lengths */ uInt lit_bufsize; /* Size of match buffer for literals/lengths. There are 4 reasons for @@ -239,13 +239,8 @@ typedef struct internal_state { * - I can't count above 4 */ - uInt last_lit; /* running index in l_buf */ - - ushf *d_buf; - /* Buffer for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ + uInt sym_next; /* running index in sym_buf */ + uInt sym_end; /* symbol table full when sym_next reaches this */ ulg opt_len; /* bit length of current block with optimal trees */ ulg static_len; /* bit length of current block with static trees */ @@ -325,20 +320,22 @@ void ZLIB_INTERNAL _tr_stored_block OF((deflate_state *s, charf *buf, # define _tr_tally_lit(s, c, flush) \ { uch cc = (c); \ - s->d_buf[s->last_lit] = 0; \ - s->l_buf[s->last_lit++] = cc; \ + s->sym_buf[s->sym_next++] = 0; \ + s->sym_buf[s->sym_next++] = 0; \ + s->sym_buf[s->sym_next++] = cc; \ s->dyn_ltree[cc].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ + flush = (s->sym_next == s->sym_end); \ } # define _tr_tally_dist(s, distance, length, flush) \ { uch len = (uch)(length); \ ush dist = (ush)(distance); \ - s->d_buf[s->last_lit] = dist; \ - s->l_buf[s->last_lit++] = len; \ + s->sym_buf[s->sym_next++] = dist; \ + s->sym_buf[s->sym_next++] = dist >> 8; \ + s->sym_buf[s->sym_next++] = len; \ dist--; \ s->dyn_ltree[_length_code[len]+LITERALS+1].Freq++; \ s->dyn_dtree[d_code(dist)].Freq++; \ - flush = (s->last_lit == s->lit_bufsize-1); \ + flush = (s->sym_next == s->sym_end); \ } #else # define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) diff --git a/lib/libvgz/gzguts.h b/lib/libvgz/gzguts.h index 0c6f7b3d7..3991076e6 100644 --- a/lib/libvgz/gzguts.h +++ b/lib/libvgz/gzguts.h @@ -1,5 +1,5 @@ /* gzguts.h -- zlib internal header definitions for gz* operations - * Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013, 2016 Mark Adler + * Copyright (C) 2004-2019 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -39,7 +39,7 @@ # include #endif -#if defined(_WIN32) || defined(__CYGWIN__) +#if defined(_WIN32) # define WIDECHAR #endif @@ -190,6 +190,7 @@ typedef struct { /* just for writing */ int level; /* compression level */ int strategy; /* compression strategy */ + int reset; /* true if a reset is pending after a Z_FINISH */ /* seek request */ z_off64_t skip; /* amount to skip (already rewound if backwards) */ int seek; /* true if seek request pending */ diff --git a/lib/libvgz/inffast.c b/lib/libvgz/inffast.c index c869998b8..903ebfae1 100644 --- a/lib/libvgz/inffast.c +++ b/lib/libvgz/inffast.c @@ -70,7 +70,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ code const FAR *dcode; /* local strm->distcode */ unsigned lmask; /* mask for first level of length codes */ unsigned dmask; /* mask for first level of distance codes */ - code here; /* retrieved table entry */ + code const *here; /* retrieved table entry */ unsigned op; /* code bits, operation, extra bits, or */ /* window position, window bytes to copy */ unsigned len; /* match length, unused bytes */ @@ -107,20 +107,20 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ hold += (unsigned long)(*in++) << bits; bits += 8; } - here = lcode[hold & lmask]; + here = lcode + (hold & lmask); dolen: - op = (unsigned)(here.bits); + op = (unsigned)(here->bits); hold >>= op; bits -= op; - op = (unsigned)(here.op); + op = (unsigned)(here->op); if (op == 0) { /* literal */ - Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + Tracevv((stderr, here->val >= 0x20 && here->val < 0x7f ? "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", here.val)); - *out++ = (unsigned char)(here.val); + "inflate: literal 0x%02x\n", here->val)); + *out++ = (unsigned char)(here->val); } else if (op & 16) { /* length base */ - len = (unsigned)(here.val); + len = (unsigned)(here->val); op &= 15; /* number of extra bits */ if (op) { if (bits < op) { @@ -138,14 +138,14 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ hold += (unsigned long)(*in++) << bits; bits += 8; } - here = dcode[hold & dmask]; + here = dcode + (hold & dmask); dodist: - op = (unsigned)(here.bits); + op = (unsigned)(here->bits); hold >>= op; bits -= op; - op = (unsigned)(here.op); + op = (unsigned)(here->op); if (op & 16) { /* distance base */ - dist = (unsigned)(here.val); + dist = (unsigned)(here->val); op &= 15; /* number of extra bits */ if (bits < op) { hold += (unsigned long)(*in++) << bits; @@ -264,7 +264,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ } } else if ((op & 64) == 0) { /* 2nd level distance code */ - here = dcode[here.val + (hold & ((1U << op) - 1))]; + here = dcode + here->val + (hold & ((1U << op) - 1)); goto dodist; } else { @@ -274,7 +274,7 @@ unsigned start; /* inflate()'s starting value for strm->avail_out */ } } else if ((op & 64) == 0) { /* 2nd level length code */ - here = lcode[here.val + (hold & ((1U << op) - 1))]; + here = lcode + here->val + (hold & ((1U << op) - 1)); goto dolen; } else if (op & 32) { /* end-of-block */ diff --git a/lib/libvgz/inflate.c b/lib/libvgz/inflate.c index ca7b6086d..bb6db9ce9 100644 --- a/lib/libvgz/inflate.c +++ b/lib/libvgz/inflate.c @@ -1,5 +1,5 @@ /* inflate.c -- zlib decompression - * Copyright (C) 1995-2016 Mark Adler + * Copyright (C) 1995-2022 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -102,7 +102,7 @@ local int updatewindow OF((z_streamp strm, const unsigned char FAR *end, #ifdef NOVGZ local unsigned syncsearch OF((unsigned FAR *have, const unsigned char FAR *buf, unsigned len)); -#endif +#endif /* NOVGZ */ local int inflateStateCheck(strm) z_streamp strm; @@ -133,6 +133,7 @@ z_streamp strm; state->mode = HEAD; state->last = 0; state->havedict = 0; + state->flags = -1; state->dmax = 32768U; state->head = Z_NULL; state->hold = 0; @@ -270,7 +271,7 @@ int value; return Z_OK; } -#endif +#endif /* NOVGZ */ /* Return state with length and distance decoding tables and index sizes set to @@ -454,10 +455,10 @@ unsigned copy; /* check function to use adler32() for zlib or crc32() for gzip */ #ifdef GUNZIP -# define UPDATE(check, buf, len) \ +# define UPDATE_CHECK(check, buf, len) \ (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) #else -# define UPDATE(check, buf, len) adler32(check, buf, len) +# define UPDATE_CHECK(check, buf, len) adler32(check, buf, len) #endif /* check macros for header crc */ @@ -677,7 +678,6 @@ int flush; state->mode = FLAGS; break; } - state->flags = 0; /* expect zlib header */ if (state->head != Z_NULL) state->head->done = -1; if (!(state->wrap & 1) || /* check if zlib header allowed */ @@ -704,6 +704,7 @@ int flush; break; } state->dmax = 1U << len; + state->flags = 0; /* indicate zlib header */ Tracev((stderr, "inflate: zlib header ok\n")); strm->adler = state->check = adler32(0L, Z_NULL, 0); state->mode = hold & 0x200 ? DICTID : TYPE; @@ -729,6 +730,7 @@ int flush; CRC2(state->check, hold); INITBITS(); state->mode = TIME; + /* fallthrough */ case TIME: NEEDBITS(32); if (state->head != Z_NULL) @@ -737,6 +739,7 @@ int flush; CRC4(state->check, hold); INITBITS(); state->mode = OS; + /* fallthrough */ case OS: NEEDBITS(16); if (state->head != Z_NULL) { @@ -747,6 +750,7 @@ int flush; CRC2(state->check, hold); INITBITS(); state->mode = EXLEN; + /* fallthrough */ case EXLEN: if (state->flags & 0x0400) { NEEDBITS(16); @@ -760,6 +764,7 @@ int flush; else if (state->head != Z_NULL) state->head->extra = Z_NULL; state->mode = EXTRA; + /* fallthrough */ case EXTRA: if (state->flags & 0x0400) { copy = state->length; @@ -782,6 +787,7 @@ int flush; } state->length = 0; state->mode = NAME; + /* fallthrough */ case NAME: if (state->flags & 0x0800) { if (have == 0) goto inf_leave; @@ -803,6 +809,7 @@ int flush; state->head->name = Z_NULL; state->length = 0; state->mode = COMMENT; + /* fallthrough */ case COMMENT: if (state->flags & 0x1000) { if (have == 0) goto inf_leave; @@ -823,6 +830,7 @@ int flush; else if (state->head != Z_NULL) state->head->comment = Z_NULL; state->mode = HCRC; + /* fallthrough */ case HCRC: if (state->flags & 0x0200) { NEEDBITS(16); @@ -846,6 +854,7 @@ int flush; strm->adler = state->check = ZSWAP32(hold); INITBITS(); state->mode = DICT; + /* fallthrough */ case DICT: if (state->havedict == 0) { RESTORE(); @@ -853,8 +862,10 @@ int flush; } strm->adler = state->check = adler32(0L, Z_NULL, 0); state->mode = TYPE; + /* fallthrough */ case TYPE: if (flush == Z_BLOCK || flush == Z_TREES) goto inf_leave; + /* fallthrough */ case TYPEDO: if (strm->start_bit == 0) strm->start_bit = 8 * (strm->total_in + in - have) - bits; @@ -910,8 +921,10 @@ int flush; INITBITS(); state->mode = COPY_; if (flush == Z_TREES) goto inf_leave; + /* fallthrough */ case COPY_: state->mode = COPY; + /* fallthrough */ case COPY: copy = state->length; if (copy) { @@ -947,6 +960,7 @@ int flush; Tracev((stderr, "inflate: table sizes ok\n")); state->have = 0; state->mode = LENLENS; + /* fallthrough */ case LENLENS: while (state->have < state->ncode) { NEEDBITS(3); @@ -968,6 +982,7 @@ int flush; Tracev((stderr, "inflate: code lengths ok\n")); state->have = 0; state->mode = CODELENS; + /* fallthrough */ case CODELENS: while (state->have < state->nlen + state->ndist) { for (;;) { @@ -1051,8 +1066,10 @@ int flush; Tracev((stderr, "inflate: codes ok\n")); state->mode = LEN_; if (flush == Z_TREES) goto inf_leave; + /* fallthrough */ case LEN_: state->mode = LEN; + /* fallthrough */ case LEN: if (have >= 6 && left >= 258) { RESTORE(); @@ -1102,6 +1119,7 @@ int flush; } state->extra = (unsigned)(here.op) & 15; state->mode = LENEXT; + /* fallthrough */ case LENEXT: if (state->extra) { NEEDBITS(state->extra); @@ -1112,6 +1130,7 @@ int flush; Tracevv((stderr, "inflate: length %u\n", state->length)); state->was = state->length; state->mode = DIST; + /* fallthrough */ case DIST: for (;;) { here = state->distcode[BITS(state->distbits)]; @@ -1139,6 +1158,7 @@ int flush; state->offset = (unsigned)here.val; state->extra = (unsigned)(here.op) & 15; state->mode = DISTEXT; + /* fallthrough */ case DISTEXT: if (state->extra) { NEEDBITS(state->extra); @@ -1155,6 +1175,7 @@ int flush; #endif Tracevv((stderr, "inflate: distance %u\n", state->offset)); state->mode = MATCH; + /* fallthrough */ case MATCH: if (left == 0) goto inf_leave; copy = out - left; @@ -1214,7 +1235,7 @@ int flush; state->total += out; if ((state->wrap & 4) && out) strm->adler = state->check = - UPDATE(state->check, put - out, out); + UPDATE_CHECK(state->check, put - out, out); out = left; if ((state->wrap & 4) && ( #ifdef GUNZIP @@ -1230,10 +1251,11 @@ int flush; } #ifdef GUNZIP state->mode = LENGTH; + /* fallthrough */ case LENGTH: if (state->wrap && state->flags) { NEEDBITS(32); - if (hold != (state->total & 0xffffffffUL)) { + if ((state->wrap & 4) && hold != (state->total & 0xffffffff)) { strm->msg = "incorrect length check"; state->mode = BAD; break; @@ -1243,6 +1265,7 @@ int flush; } #endif state->mode = DONE; + /* fallthrough */ case DONE: ret = Z_STREAM_END; goto inf_leave; @@ -1252,6 +1275,7 @@ int flush; case MEM: return Z_MEM_ERROR; case SYNC: + /* fallthrough */ default: return Z_STREAM_ERROR; } @@ -1277,7 +1301,7 @@ int flush; state->total += out; if ((state->wrap & 4) && out) strm->adler = state->check = - UPDATE(state->check, strm->next_out - out, out); + UPDATE_CHECK(state->check, strm->next_out - out, out); strm->data_type = (int)state->bits + (state->last ? 64 : 0) + (state->mode == TYPE ? 128 : 0) + (state->mode == LEN_ || state->mode == COPY_ ? 256 : 0); @@ -1415,6 +1439,7 @@ int ZEXPORT inflateSync(strm) z_streamp strm; { unsigned len; /* number of bytes to look at or looked at */ + int flags; /* temporary to save header status */ unsigned long in, out; /* temporary to save total_in and total_out */ unsigned char buf[4]; /* to restore bit buffer to byte string */ struct inflate_state FAR *state; @@ -1447,9 +1472,15 @@ z_streamp strm; /* return no joy or set up to restart inflate() on a new block */ if (state->have != 4) return Z_DATA_ERROR; + if (state->flags == -1) + state->wrap = 0; /* if no header yet, treat as raw */ + else + state->wrap &= ~4; /* no point in computing a check value now */ + flags = state->flags; in = strm->total_in; out = strm->total_out; inflateReset(strm); strm->total_in = in; strm->total_out = out; + state->flags = flags; state->mode = TYPE; return Z_OK; } @@ -1545,7 +1576,7 @@ int check; if (inflateStateCheck(strm)) return Z_STREAM_ERROR; state = (struct inflate_state FAR *)strm->state; - if (check) + if (check && state->wrap) state->wrap |= 4; else state->wrap &= ~4; @@ -1574,4 +1605,4 @@ z_streamp strm; return (unsigned long)(state->next - state->codes); } -#endif +#endif /* NOVGZ */ diff --git a/lib/libvgz/inflate.h b/lib/libvgz/inflate.h index a46cce6b6..f127b6b1f 100644 --- a/lib/libvgz/inflate.h +++ b/lib/libvgz/inflate.h @@ -1,5 +1,5 @@ /* inflate.h -- internal inflate state definition - * Copyright (C) 1995-2016 Mark Adler + * Copyright (C) 1995-2019 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -86,7 +86,8 @@ struct inflate_state { int wrap; /* bit 0 true for zlib, bit 1 true for gzip, bit 2 true to validate check value */ int havedict; /* true if dictionary provided */ - int flags; /* gzip header method and flags (0 if zlib) */ + int flags; /* gzip header method and flags, 0 if zlib, or + -1 if raw or no header yet */ unsigned dmax; /* zlib header max distance (INFLATE_STRICT) */ unsigned long check; /* protected copy of check value */ unsigned long total; /* protected copy of output count */ diff --git a/lib/libvgz/inftrees.c b/lib/libvgz/inftrees.c index d89a53350..761253942 100644 --- a/lib/libvgz/inftrees.c +++ b/lib/libvgz/inftrees.c @@ -1,5 +1,5 @@ /* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2017 Mark Adler + * Copyright (C) 1995-2022 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -10,7 +10,7 @@ extern const char inflate_copyright[]; const char inflate_copyright[] = - " inflate 1.2.11 Copyright 1995-2017 Mark Adler "; + " inflate 1.2.12 Copyright 1995-2022 Mark Adler "; /* If you use the zlib library in a product, an acknowledgment is welcome in the documentation of your product. If for some reason you cannot @@ -63,7 +63,7 @@ unsigned short FAR *work; 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; static const unsigned short lext[31] = { /* Length codes 257..285 extra */ 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, - 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 77, 202}; + 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 199, 202}; static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, diff --git a/lib/libvgz/trees.c b/lib/libvgz/trees.c index a11cd0d48..6ae8dcf47 100644 --- a/lib/libvgz/trees.c +++ b/lib/libvgz/trees.c @@ -1,5 +1,5 @@ /* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2017 Jean-loup Gailly + * Copyright (C) 1995-2021 Jean-loup Gailly * detect_data_type() function provided freely by Cosmin Truta, 2006 * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -149,7 +149,7 @@ local void send_all_trees OF((deflate_state *s, int lcodes, int dcodes, local void compress_block OF((deflate_state *s, const ct_data *ltree, const ct_data *dtree)); local int detect_data_type OF((deflate_state *s)); -local unsigned bi_reverse OF((unsigned value, int length)); +local unsigned bi_reverse OF((unsigned code, int len)); local void bi_windup OF((deflate_state *s)); local void bi_flush OF((deflate_state *s)); @@ -416,7 +416,7 @@ local void init_block(s) s->dyn_ltree[END_BLOCK].Freq = 1; s->opt_len = s->static_len = 0L; - s->last_lit = s->matches = 0; + s->sym_next = s->matches = 0; } #define SMALLEST 1 @@ -959,7 +959,7 @@ void ZLIB_INTERNAL _tr_flush_block(s, buf, stored_len, last) Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); + s->sym_next / 3)); if (static_lenb <= opt_lenb) opt_lenb = static_lenb; @@ -1030,8 +1030,9 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc) unsigned dist; /* distance of matched string */ unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ { - s->d_buf[s->last_lit] = (ush)dist; - s->l_buf[s->last_lit++] = (uch)lc; + s->sym_buf[s->sym_next++] = dist; + s->sym_buf[s->sym_next++] = dist >> 8; + s->sym_buf[s->sym_next++] = lc; if (dist == 0) { /* lc is the unmatched char */ s->dyn_ltree[lc].Freq++; @@ -1046,30 +1047,7 @@ int ZLIB_INTERNAL _tr_tally (s, dist, lc) s->dyn_ltree[_length_code[lc]+LITERALS+1].Freq++; s->dyn_dtree[d_code(dist)].Freq++; } - -#ifdef TRUNCATE_BLOCK - /* Try to guess if it is profitable to stop the current block here */ - if ((s->last_lit & 0x1fff) == 0 && s->level > 2) { - /* Compute an upper bound for the compressed length */ - ulg out_length = (ulg)s->last_lit*8L; - ulg in_length = (ulg)((long)s->strstart - s->block_start); - int dcode; - for (dcode = 0; dcode < D_CODES; dcode++) { - out_length += (ulg)s->dyn_dtree[dcode].Freq * - (5L+extra_dbits[dcode]); - } - out_length >>= 3; - Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", - s->last_lit, in_length, out_length, - 100L - out_length*100L/in_length)); - if (s->matches < s->last_lit/2 && out_length < in_length/2) return 1; - } -#endif - return (s->last_lit == s->lit_bufsize-1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ + return (s->sym_next == s->sym_end); } /* =========================================================================== @@ -1082,13 +1060,14 @@ local void compress_block(s, ltree, dtree) { unsigned dist; /* distance of matched string */ int lc; /* match length or unmatched char (if dist == 0) */ - unsigned lx = 0; /* running index in l_buf */ + unsigned sx = 0; /* running index in sym_buf */ unsigned code; /* the code to send */ int extra; /* number of extra bits to send */ - if (s->last_lit != 0) do { - dist = s->d_buf[lx]; - lc = s->l_buf[lx++]; + if (s->sym_next != 0) do { + dist = s->sym_buf[sx++] & 0xff; + dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8; + lc = s->sym_buf[sx++]; if (dist == 0) { send_code(s, lc, ltree); /* send a literal byte */ Tracecv(isgraph(lc), (stderr," '%c' ", lc)); @@ -1113,11 +1092,10 @@ local void compress_block(s, ltree, dtree) } } /* literal or match pair ? */ - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, - "pendingBuf overflow"); + /* Check that the overlay between pending_buf and sym_buf is ok: */ + Assert(s->pending < s->lit_bufsize + sx, "pendingBuf overflow"); - } while (lx < s->last_lit); + } while (sx < s->sym_next); send_code(s, END_BLOCK, ltree); } @@ -1126,9 +1104,9 @@ local void compress_block(s, ltree, dtree) * Check if the data type is TEXT or BINARY, using the following algorithm: * - TEXT if the two conditions below are satisfied: * a) There are no non-portable control characters belonging to the - * "black list" (0..6, 14..25, 28..31). + * "block list" (0..6, 14..25, 28..31). * b) There is at least one printable character belonging to the - * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). + * "allow list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). * - BINARY otherwise. * - The following partially-portable control characters form a * "gray list" that is ignored in this detection algorithm: @@ -1138,19 +1116,19 @@ local void compress_block(s, ltree, dtree) local int detect_data_type(s) deflate_state *s; { - /* black_mask is the bit mask of black-listed bytes + /* block_mask is the bit mask of block-listed bytes * set bits 0..6, 14..25, and 28..31 * 0xf3ffc07f = binary 11110011111111111100000001111111 */ - unsigned long black_mask = 0xf3ffc07fUL; + unsigned long block_mask = 0xf3ffc07fUL; int n; - /* Check for non-textual ("black-listed") bytes. */ - for (n = 0; n <= 31; n++, black_mask >>= 1) - if ((black_mask & 1) && (s->dyn_ltree[n].Freq != 0)) + /* Check for non-textual ("block-listed") bytes. */ + for (n = 0; n <= 31; n++, block_mask >>= 1) + if ((block_mask & 1) && (s->dyn_ltree[n].Freq != 0)) return Z_BINARY; - /* Check for textual ("white-listed") bytes. */ + /* Check for textual ("allow-listed") bytes. */ if (s->dyn_ltree[9].Freq != 0 || s->dyn_ltree[10].Freq != 0 || s->dyn_ltree[13].Freq != 0) return Z_TEXT; @@ -1158,7 +1136,7 @@ local int detect_data_type(s) if (s->dyn_ltree[n].Freq != 0) return Z_TEXT; - /* There are no "black-listed" or "white-listed" bytes: + /* There are no "block-listed" or "allow-listed" bytes: * this stream either is empty or has tolerated ("gray-listed") bytes only. */ return Z_BINARY; diff --git a/lib/libvgz/vgz.h b/lib/libvgz/vgz.h index 342a0fba5..861844d81 100644 --- a/lib/libvgz/vgz.h +++ b/lib/libvgz/vgz.h @@ -1,7 +1,7 @@ /* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.2.11, January 15th, 2017 + version 1.2.12, March 11th, 2022 - Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler + Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages @@ -37,11 +37,11 @@ extern "C" { #endif -#define ZLIB_VERSION "1.2.11" -#define ZLIB_VERNUM 0x12b0 +#define ZLIB_VERSION "1.2.12" +#define ZLIB_VERNUM 0x12c0 #define ZLIB_VER_MAJOR 1 #define ZLIB_VER_MINOR 2 -#define ZLIB_VER_REVISION 11 +#define ZLIB_VER_REVISION 12 #define ZLIB_VER_SUBREVISION 0 /* @@ -548,8 +548,7 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, int strategy)); This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by the - caller. + fields zalloc, zfree and opaque must be initialized before by the caller. The method parameter is the compression method. It must be Z_DEFLATED in this version of the library. @@ -717,11 +716,12 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, used to switch between compression and straight copy of the input data, or to switch to a different kind of input data requiring a different strategy. If the compression approach (which is a function of the level) or the - strategy is changed, and if any input has been consumed in a previous - deflate() call, then the input available so far is compressed with the old - level and strategy using deflate(strm, Z_BLOCK). There are three approaches - for the compression levels 0, 1..3, and 4..9 respectively. The new level - and strategy will take effect at the next call of deflate(). + strategy is changed, and if there have been any deflate() calls since the + state was initialized or reset, then the input available so far is + compressed with the old level and strategy using deflate(strm, Z_BLOCK). + There are three approaches for the compression levels 0, 1..3, and 4..9 + respectively. The new level and strategy will take effect at the next call + of deflate(). If a deflate(strm, Z_BLOCK) is performed by deflateParams(), and it does not have enough output space to complete, then the parameter change will not @@ -870,9 +870,11 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, detection, or add 16 to decode only the gzip format (the zlib format will return a Z_DATA_ERROR). If a gzip stream is being decoded, strm->adler is a CRC-32 instead of an Adler-32. Unlike the gunzip utility and gzread() (see - below), inflate() will not automatically decode concatenated gzip streams. - inflate() will return Z_STREAM_END at the end of the gzip stream. The state - would need to be reset to continue decoding a subsequent gzip stream. + below), inflate() will *not* automatically decode concatenated gzip members. + inflate() will return Z_STREAM_END at the end of the gzip member. The state + would need to be reset to continue decoding a subsequent gzip member. This + *must* be done if there is more data after a gzip member, in order for the + decompression to be compliant with the gzip standard (RFC 1952). inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_VERSION_ERROR if the zlib library version is incompatible with the @@ -1307,14 +1309,14 @@ typedef struct gzFile_s *gzFile; /* semi-opaque gzip file descriptor */ /* ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); - Opens a gzip (.gz) file for reading or writing. The mode parameter is as - in fopen ("rb" or "wb") but can also include a compression level ("wb9") or - a strategy: 'f' for filtered data as in "wb6f", 'h' for Huffman-only - compression as in "wb1h", 'R' for run-length encoding as in "wb1R", or 'F' - for fixed code compression as in "wb9F". (See the description of - deflateInit2 for more information about the strategy parameter.) 'T' will - request transparent writing or appending with no compression and not using - the gzip format. + Open the gzip (.gz) file at path for reading and decompressing, or + compressing and writing. The mode parameter is as in fopen ("rb" or "wb") + but can also include a compression level ("wb9") or a strategy: 'f' for + filtered data as in "wb6f", 'h' for Huffman-only compression as in "wb1h", + 'R' for run-length encoding as in "wb1R", or 'F' for fixed code compression + as in "wb9F". (See the description of deflateInit2 for more information + about the strategy parameter.) 'T' will request transparent writing or + appending with no compression and not using the gzip format. "a" can be used instead of "w" to request that the gzip stream that will be written be appended to the file. "+" will result in an error, since @@ -1344,9 +1346,9 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); /* - gzdopen associates a gzFile with the file descriptor fd. File descriptors - are obtained from calls like open, dup, creat, pipe or fileno (if the file - has been previously opened with fopen). The mode parameter is as in gzopen. + Associate a gzFile with the file descriptor fd. File descriptors are + obtained from calls like open, dup, creat, pipe or fileno (if the file has + been previously opened with fopen). The mode parameter is as in gzopen. The next call of gzclose on the returned gzFile will also close the file descriptor fd, just like fclose(fdopen(fd, mode)) closes the file descriptor @@ -1367,13 +1369,13 @@ ZEXTERN gzFile ZEXPORT gzdopen OF((int fd, const char *mode)); ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); /* - Set the internal buffer size used by this library's functions. The - default buffer size is 8192 bytes. This function must be called after - gzopen() or gzdopen(), and before any other calls that read or write the - file. The buffer memory allocation is always deferred to the first read or - write. Three times that size in buffer space is allocated. A larger buffer - size of, for example, 64K or 128K bytes will noticeably increase the speed - of decompression (reading). + Set the internal buffer size used by this library's functions for file to + size. The default buffer size is 8192 bytes. This function must be called + after gzopen() or gzdopen(), and before any other calls that read or write + the file. The buffer memory allocation is always deferred to the first read + or write. Three times that size in buffer space is allocated. A larger + buffer size of, for example, 64K or 128K bytes will noticeably increase the + speed of decompression (reading). The new buffer size also affects the maximum length for gzprintf(). @@ -1383,9 +1385,9 @@ ZEXTERN int ZEXPORT gzbuffer OF((gzFile file, unsigned size)); ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); /* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. Previously provided - data is flushed before the parameter change. + Dynamically update the compression level and strategy for file. See the + description of deflateInit2 for the meaning of these parameters. Previously + provided data is flushed before applying the parameter changes. gzsetparams returns Z_OK if success, Z_STREAM_ERROR if the file was not opened for writing, Z_ERRNO if there is an error writing the flushed data, @@ -1394,7 +1396,7 @@ ZEXTERN int ZEXPORT gzsetparams OF((gzFile file, int level, int strategy)); ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); /* - Reads the given number of uncompressed bytes from the compressed file. If + Read and decompress up to len uncompressed bytes from file into buf. If the input file is not in gzip format, gzread copies the given number of bytes into the buffer directly from the file. @@ -1425,11 +1427,11 @@ ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); ZEXTERN z_size_t ZEXPORT gzfread OF((voidp buf, z_size_t size, z_size_t nitems, gzFile file)); /* - Read up to nitems items of size size from file to buf, otherwise operating - as gzread() does. This duplicates the interface of stdio's fread(), with - size_t request and return types. If the library defines size_t, then - z_size_t is identical to size_t. If not, then z_size_t is an unsigned - integer type that can contain a pointer. + Read and decompress up to nitems items of size size from file into buf, + otherwise operating as gzread() does. This duplicates the interface of + stdio's fread(), with size_t request and return types. If the library + defines size_t, then z_size_t is identical to size_t. If not, then z_size_t + is an unsigned integer type that can contain a pointer. gzfread() returns the number of full items read of size size, or zero if the end of the file was reached and a full item could not be read, or if @@ -1448,18 +1450,16 @@ ZEXTERN z_size_t ZEXPORT gzfread OF((voidp buf, z_size_t size, z_size_t nitems, file, reseting and retrying on end-of-file, when size is not 1. */ -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - voidpc buf, unsigned len)); +ZEXTERN int ZEXPORT gzwrite OF((gzFile file, voidpc buf, unsigned len)); /* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes written or 0 in case of - error. + Compress and write the len uncompressed bytes at buf to file. gzwrite + returns the number of uncompressed bytes written or 0 in case of error. */ ZEXTERN z_size_t ZEXPORT gzfwrite OF((voidpc buf, z_size_t size, z_size_t nitems, gzFile file)); /* - gzfwrite() writes nitems items of size size from buf to file, duplicating + Compress and write nitems items of size size from buf to file, duplicating the interface of stdio's fwrite(), with size_t request and return types. If the library defines size_t, then z_size_t is identical to size_t. If not, then z_size_t is an unsigned integer type that can contain a pointer. @@ -1472,22 +1472,22 @@ ZEXTERN z_size_t ZEXPORT gzfwrite OF((voidpc buf, z_size_t size, ZEXTERN int ZEXPORTVA gzprintf Z_ARG((gzFile file, const char *format, ...)); /* - Converts, formats, and writes the arguments to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of + Convert, format, compress, and write the arguments (...) to file under + control of the string format, as in fprintf. gzprintf returns the number of uncompressed bytes actually written, or a negative zlib error code in case of error. The number of uncompressed bytes written is limited to 8191, or one less than the buffer size given to gzbuffer(). The caller should assure that this limit is not exceeded. If it is exceeded, then gzprintf() will return an error (0) with nothing written. In this case, there may also be a buffer overflow with unpredictable consequences, which is possible only if - zlib was compiled with the insecure functions sprintf() or vsprintf() + zlib was compiled with the insecure functions sprintf() or vsprintf(), because the secure snprintf() or vsnprintf() functions were not available. This can be determined using zlibCompileFlags(). */ ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); /* - Writes the given null-terminated string to the compressed file, excluding + Compress and write the given null-terminated string s to file, excluding the terminating null character. gzputs returns the number of characters written, or -1 in case of error. @@ -1495,11 +1495,12 @@ ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); /* - Reads bytes from the compressed file until len-1 characters are read, or a - newline character is read and transferred to buf, or an end-of-file - condition is encountered. If any characters are read or if len == 1, the - string is terminated with a null character. If no characters are read due - to an end-of-file or len < 1, then the buffer is left untouched. + Read and decompress bytes from file into buf, until len-1 characters are + read, or until a newline character is read and transferred to buf, or an + end-of-file condition is encountered. If any characters are read or if len + is one, the string is terminated with a null character. If no characters + are read due to an end-of-file or len is less than one, then the buffer is + left untouched. gzgets returns buf which is a null-terminated string, or it returns NULL for end-of-file or in case of error. If there was an error, the contents at @@ -1508,13 +1509,13 @@ ZEXTERN char * ZEXPORT gzgets OF((gzFile file, char *buf, int len)); ZEXTERN int ZEXPORT gzputc OF((gzFile file, int c)); /* - Writes c, converted to an unsigned char, into the compressed file. gzputc + Compress and write c, converted to an unsigned char, into file. gzputc returns the value that was written, or -1 in case of error. */ ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); /* - Reads one byte from the compressed file. gzgetc returns this byte or -1 + Read and decompress one byte from file. gzgetc returns this byte or -1 in case of end of file or error. This is implemented as a macro for speed. As such, it does not do all of the checking the other functions do. I.e. it does not check to see if file is NULL, nor whether the structure file @@ -1523,8 +1524,8 @@ ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); /* - Push one character back onto the stream to be read as the first character - on the next read. At least one character of push-back is allowed. + Push c back onto the stream for file to be read as the first character on + the next read. At least one character of push-back is always allowed. gzungetc() returns the character pushed, or -1 on failure. gzungetc() will fail if c is -1, and may fail if a character has been pushed but not read yet. If gzungetc is used immediately after gzopen or gzdopen, at least the @@ -1535,9 +1536,9 @@ ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); /* - Flushes all pending output into the compressed file. The parameter flush - is as in the deflate() function. The return value is the zlib error number - (see function gzerror below). gzflush is only permitted when writing. + Flush all pending output to file. The parameter flush is as in the + deflate() function. The return value is the zlib error number (see function + gzerror below). gzflush is only permitted when writing. If the flush parameter is Z_FINISH, the remaining data is written and the gzip stream is completed in the output. If gzwrite() is called again, a new @@ -1552,8 +1553,8 @@ ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, z_off_t offset, int whence)); - Sets the starting position for the next gzread or gzwrite on the given - compressed file. The offset represents a number of bytes in the + Set the starting position to offset relative to whence for the next gzread + or gzwrite on file. The offset represents a number of bytes in the uncompressed data stream. The whence parameter is defined as in lseek(2); the value SEEK_END is not supported. @@ -1570,18 +1571,18 @@ ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, ZEXTERN int ZEXPORT gzrewind OF((gzFile file)); /* - Rewinds the given file. This function is supported only for reading. + Rewind file. This function is supported only for reading. - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) + gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET). */ /* ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); - Returns the starting position for the next gzread or gzwrite on the given - compressed file. This position represents a number of bytes in the - uncompressed data stream, and is zero when starting, even if appending or - reading a gzip stream from the middle of a file using gzdopen(). + Return the starting position for the next gzread or gzwrite on file. + This position represents a number of bytes in the uncompressed data stream, + and is zero when starting, even if appending or reading a gzip stream from + the middle of a file using gzdopen(). gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) */ @@ -1589,22 +1590,22 @@ ZEXTERN z_off_t ZEXPORT gztell OF((gzFile file)); /* ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile file)); - Returns the current offset in the file being read or written. This offset - includes the count of bytes that precede the gzip stream, for example when - appending or when using gzdopen() for reading. When reading, the offset - does not include as yet unused buffered input. This information can be used - for a progress indicator. On error, gzoffset() returns -1. + Return the current compressed (actual) read or write offset of file. This + offset includes the count of bytes that precede the gzip stream, for example + when appending or when using gzdopen() for reading. When reading, the + offset does not include as yet unused buffered input. This information can + be used for a progress indicator. On error, gzoffset() returns -1. */ ZEXTERN int ZEXPORT gzeof OF((gzFile file)); /* - Returns true (1) if the end-of-file indicator has been set while reading, - false (0) otherwise. Note that the end-of-file indicator is set only if the - read tried to go past the end of the input, but came up short. Therefore, - just like feof(), gzeof() may return false even if there is no more data to - read, in the event that the last read request was for the exact number of - bytes remaining in the input file. This will happen if the input file size - is an exact multiple of the buffer size. + Return true (1) if the end-of-file indicator for file has been set while + reading, false (0) otherwise. Note that the end-of-file indicator is set + only if the read tried to go past the end of the input, but came up short. + Therefore, just like feof(), gzeof() may return false even if there is no + more data to read, in the event that the last read request was for the exact + number of bytes remaining in the input file. This will happen if the input + file size is an exact multiple of the buffer size. If gzeof() returns true, then the read functions will return no more data, unless the end-of-file indicator is reset by gzclearerr() and the input file @@ -1613,7 +1614,7 @@ ZEXTERN int ZEXPORT gzeof OF((gzFile file)); ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); /* - Returns true (1) if file is being copied directly while reading, or false + Return true (1) if file is being copied directly while reading, or false (0) if file is a gzip stream being decompressed. If the input file is empty, gzdirect() will return true, since the input @@ -1634,8 +1635,8 @@ ZEXTERN int ZEXPORT gzdirect OF((gzFile file)); ZEXTERN int ZEXPORT gzclose OF((gzFile file)); /* - Flushes all pending output if necessary, closes the compressed file and - deallocates the (de)compression state. Note that once file is closed, you + Flush all pending output for file, if necessary, close file and + deallocate the (de)compression state. Note that once file is closed, you cannot call gzerror with file, since its structures have been deallocated. gzclose must not be called more than once on the same file, just as free must not be called more than once on the same allocation. @@ -1659,10 +1660,10 @@ ZEXTERN int ZEXPORT gzclose_w OF((gzFile file)); ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); /* - Returns the error message for the last error which occurred on the given - compressed file. errnum is set to zlib error number. If an error occurred - in the file system and not in the compression library, errnum is set to - Z_ERRNO and the application may consult errno to get the exact error code. + Return the error message for the last error which occurred on file. + errnum is set to zlib error number. If an error occurred in the file system + and not in the compression library, errnum is set to Z_ERRNO and the + application may consult errno to get the exact error code. The application must not modify the returned string. Future calls to this function may invalidate the previously returned string. If file is @@ -1675,7 +1676,7 @@ ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); /* - Clears the error and end-of-file flags for file. This is analogous to the + Clear the error and end-of-file flags for file. This is analogous to the clearerr() function in stdio. This is useful for continuing to read a gzip file that is being written concurrently. */ @@ -1693,8 +1694,9 @@ ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); ZEXTERN uLong ZEXPORT adler32 OF((uLong adler, const Bytef *buf, uInt len)); /* Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is Z_NULL, this function returns the - required initial value for the checksum. + return the updated checksum. An Adler-32 value is in the range of a 32-bit + unsigned integer. If buf is Z_NULL, this function returns the required + initial value for the checksum. An Adler-32 checksum is almost as reliable as a CRC-32 but can be computed much faster. @@ -1727,12 +1729,13 @@ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong adler1, uLong adler2, negative, the result has no meaning or utility. */ -ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); +ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); /* Update a running CRC-32 with the bytes buf[0..len-1] and return the - updated CRC-32. If buf is Z_NULL, this function returns the required - initial value for the crc. Pre- and post-conditioning (one's complement) is - performed within this function so it shouldn't be done by the application. + updated CRC-32. A CRC-32 value is in the range of a 32-bit unsigned integer. + If buf is Z_NULL, this function returns the required initial value for the + crc. Pre- and post-conditioning (one's complement) is performed within this + function so it shouldn't be done by the application. Usage example: @@ -1744,7 +1747,7 @@ ZEXTERN uLong ZEXPORT crc32 OF((uLong crc, const Bytef *buf, uInt len)); if (crc != original_crc) error(); */ -ZEXTERN uLong ZEXPORT crc32_z OF((uLong adler, const Bytef *buf, +ZEXTERN uLong ZEXPORT crc32_z OF((uLong crc, const Bytef *buf, z_size_t len)); /* Same as crc32(), but with a size_t length. @@ -1760,6 +1763,20 @@ ZEXTERN uLong ZEXPORT crc32_combine OF((uLong crc1, uLong crc2, z_off_t len2)); len2. */ +/* +ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t len2)); + + Return the operator corresponding to length len2, to be used with + crc32_combine_op(). +*/ + +ZEXTERN uLong ZEXPORT crc32_combine_op OF((uLong crc1, uLong crc2, uLong op)); +/* + Give the same result as crc32_combine(), using op in place of len2. op is + is generated from len2 by crc32_combine_gen(). This will be faster than + crc32_combine() if the generated op is used more than once. +*/ + /* various hacks, don't look :) */ @@ -1847,6 +1864,7 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); + ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off64_t)); #endif #if !defined(ZLIB_INTERNAL) && defined(Z_WANT64) @@ -1857,6 +1875,7 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ # define z_gzoffset z_gzoffset64 # define z_adler32_combine z_adler32_combine64 # define z_crc32_combine z_crc32_combine64 +# define z_crc32_combine_gen z_crc32_combine_gen64 # else # define gzopen gzopen64 # define gzseek gzseek64 @@ -1864,6 +1883,7 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ # define gzoffset gzoffset64 # define adler32_combine adler32_combine64 # define crc32_combine crc32_combine64 +# define crc32_combine_gen crc32_combine_gen64 # endif # ifndef Z_LARGE64 ZEXTERN gzFile ZEXPORT gzopen64 OF((const char *, const char *)); @@ -1872,6 +1892,7 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ ZEXTERN z_off_t ZEXPORT gzoffset64 OF((gzFile)); ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t)); # endif #else ZEXTERN gzFile ZEXPORT gzopen OF((const char *, const char *)); @@ -1880,12 +1901,15 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile)); ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t)); #endif #else /* Z_SOLO */ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); + ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t)); #endif /* !Z_SOLO */ @@ -1898,7 +1922,7 @@ ZEXTERN int ZEXPORT inflateValidate OF((z_streamp, int)); ZEXTERN unsigned long ZEXPORT inflateCodesUsed OF ((z_streamp)); ZEXTERN int ZEXPORT inflateResetKeep OF((z_streamp)); ZEXTERN int ZEXPORT deflateResetKeep OF((z_streamp)); -#if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(Z_SOLO) +#if defined(_WIN32) && !defined(Z_SOLO) ZEXTERN gzFile ZEXPORT gzopen_w OF((const wchar_t *path, const char *mode)); #endif diff --git a/lib/libvgz/zconf.h b/lib/libvgz/zconf.h index 21f3eada7..5e1d68a00 100644 --- a/lib/libvgz/zconf.h +++ b/lib/libvgz/zconf.h @@ -501,7 +501,6 @@ typedef uLong FAR uLongf; #endif #ifndef z_off_t -# error "z_off_t missing" # define z_off_t long #endif diff --git a/lib/libvgz/zutil.c b/lib/libvgz/zutil.c index 5b21eceda..7c300fdaf 100644 --- a/lib/libvgz/zutil.c +++ b/lib/libvgz/zutil.c @@ -137,8 +137,8 @@ const char * ZEXPORT zError(err) return ERR_MSG(err); } -#if defined(_WIN32_WCE) - /* The Microsoft C Run-Time Library for Windows CE doesn't have +#if defined(_WIN32_WCE) && _WIN32_WCE < 0x800 + /* The older Microsoft C Run-Time Library for Windows CE doesn't have * errno. We define it as a global variable to simplify porting. * Its value is always 0 and should not be used. */ diff --git a/lib/libvgz/zutil.h b/lib/libvgz/zutil.h index 1a66997fe..1c80e3842 100644 --- a/lib/libvgz/zutil.h +++ b/lib/libvgz/zutil.h @@ -1,5 +1,5 @@ /* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler + * Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -29,10 +29,6 @@ # include #endif -#ifdef Z_SOLO - typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */ -#endif - #ifndef local # define local static #endif @@ -46,6 +42,17 @@ typedef unsigned short ush; typedef ush FAR ushf; typedef unsigned long ulg; +#if !defined(Z_U8) && !defined(Z_SOLO) && defined(STDC) +# include +# if (ULONG_MAX == 0xffffffffffffffff) +# define Z_U8 unsigned long +# elif (ULLONG_MAX == 0xffffffffffffffff) +# define Z_U8 unsigned long long +# elif (UINT_MAX == 0xffffffffffffffff) +# define Z_U8 unsigned +# endif +#endif + extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ /* (size given to avoid silly warnings with Visual C++) */ @@ -170,10 +177,6 @@ extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX # if defined(_WIN32_WCE) # define fdopen(fd,mode) NULL /* No fdopen() */ -# ifndef _PTRDIFF_T_DEFINED - typedef int ptrdiff_t; -# define _PTRDIFF_T_DEFINED -# endif # else # define fdopen(fd,type) _fdopen(fd,type) # endif From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:10 +0000 (UTC) Subject: [6.0] 2b4b70703 Try to fix vgz@sunos Message-ID: <20231017212810.97C7411133B@lists.varnish-cache.org> commit 2b4b707030c0b6bd7f9cc1673390edd4da8ffbe1 Author: Poul-Henning Kamp Date: Fri Apr 8 10:48:31 2022 +0000 Try to fix vgz at sunos diff --git a/lib/libvgz/vgz.h b/lib/libvgz/vgz.h index 861844d81..b259aac34 100644 --- a/lib/libvgz/vgz.h +++ b/lib/libvgz/vgz.h @@ -1864,9 +1864,10 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ ZEXTERN z_off64_t ZEXPORT gzoffset64 OF((gzFile)); ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off64_t)); ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off64_t)); - ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off64_t)); #endif +ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off64_t)); + #if !defined(ZLIB_INTERNAL) && defined(Z_WANT64) # ifdef Z_PREFIX_SET # define z_gzopen z_gzopen64 @@ -1902,7 +1903,6 @@ ZEXTERN int ZEXPORT gzgetc_ OF((gzFile file)); /* backward compatibility */ ZEXTERN uLong ZEXPORT adler32_combine OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine OF((uLong, uLong, z_off_t)); ZEXTERN uLong ZEXPORT crc32_combine_gen OF((z_off_t)); - ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t)); #endif #else /* Z_SOLO */ From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:10 +0000 (UTC) Subject: [6.0] 23d6cebf7 Sync libvgz with upstream zlib. Message-ID: <20231017212810.BD7CF111344@lists.varnish-cache.org> commit 23d6cebf71c167c1c51bda97d9a017e607563116 Author: Poul-Henning Kamp Date: Tue Sep 6 08:22:50 2022 +0000 Sync libvgz with upstream zlib. Varnish is not subject to CVE 2022 37434, we never use "extra" data. diff --git a/lib/libvgz/crc32.c b/lib/libvgz/crc32.c index 2c92d0acb..3ce5afd96 100644 --- a/lib/libvgz/crc32.c +++ b/lib/libvgz/crc32.c @@ -635,7 +635,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len) #endif /* DYNAMIC_CRC_TABLE */ /* Pre-condition the CRC */ - crc ^= 0xffffffff; + crc = (~crc) & 0xffffffff; /* Compute the CRC up to a word boundary. */ while (len && ((z_size_t)buf & 7) != 0) { @@ -754,7 +754,7 @@ unsigned long ZEXPORT crc32_z(crc, buf, len) #endif /* DYNAMIC_CRC_TABLE */ /* Pre-condition the CRC */ - crc ^= 0xffffffff; + crc = (~crc) & 0xffffffff; #ifdef W @@ -1082,7 +1082,7 @@ uLong ZEXPORT crc32_combine64(crc1, crc2, len2) #ifdef DYNAMIC_CRC_TABLE once(&made, make_crc_table); #endif /* DYNAMIC_CRC_TABLE */ - return multmodp(x2nmodp(len2, 3), crc1) ^ crc2; + return multmodp(x2nmodp(len2, 3), crc1) ^ (crc2 & 0xffffffff); } /* ========================================================================= */ @@ -1117,5 +1117,5 @@ uLong crc32_combine_op(crc1, crc2, op) uLong crc2; uLong op; { - return multmodp(op, crc1) ^ crc2; + return multmodp(op, crc1) ^ (crc2 & 0xffffffff); } diff --git a/lib/libvgz/inflate.c b/lib/libvgz/inflate.c index bb6db9ce9..9577e8312 100644 --- a/lib/libvgz/inflate.c +++ b/lib/libvgz/inflate.c @@ -771,8 +771,9 @@ int flush; if (copy > have) copy = have; if (copy) { if (state->head != Z_NULL && - state->head->extra != Z_NULL) { - len = state->head->extra_len - state->length; + state->head->extra != Z_NULL && + (len = state->head->extra_len - state->length) < + state->head->extra_max) { zmemcpy(state->head->extra + len, next, len + copy > state->head->extra_max ? state->head->extra_max - len : copy); diff --git a/lib/libvgz/zconf.h b/lib/libvgz/zconf.h index 5e1d68a00..5113d217e 100644 --- a/lib/libvgz/zconf.h +++ b/lib/libvgz/zconf.h @@ -8,6 +8,12 @@ #ifndef ZCONF_H #define ZCONF_H +#if defined(Z_SOLO) +#include +#define Z_U8 __uint64_t +#define Z_U4 __uint32_t +#endif + /* * If you *really* need a unique prefix for all types and library functions, * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:10 +0000 (UTC) Subject: [6.0] a3431ade8 Track zlib in FreeBSD Message-ID: <20231017212810.DC6A7111348@lists.varnish-cache.org> commit a3431ade85df309f8eb926776226d6b39e4fc8fa Author: Poul-Henning Kamp Date: Mon Nov 7 08:15:57 2022 +0000 Track zlib in FreeBSD diff --git a/lib/libvgz/crc32.c b/lib/libvgz/crc32.c index 3ce5afd96..0f59da66a 100644 --- a/lib/libvgz/crc32.c +++ b/lib/libvgz/crc32.c @@ -108,17 +108,14 @@ local z_crc_t x2nmodp OF((z_off64_t n, unsigned k)); #endif #if defined(W) && (!defined(ARMCRC32) || defined(DYNAMIC_CRC_TABLE)) - -local z_word_t byte_swap OF((z_word_t word)); -local z_crc_t crc_word OF((z_word_t data)); -local z_word_t crc_word_big OF((z_word_t data)); - /* Swap the bytes in a z_word_t to convert between little and big endian. Any self-respecting compiler will optimize this to a single machine byte-swap instruction, if one is available. This assumes that word_t is either 32 bits or 64 bits. */ +local z_word_t byte_swap OF((z_word_t word)); + local z_word_t byte_swap(word) z_word_t word; { @@ -719,6 +716,8 @@ unsigned long ZEXPORT crc32_z(crc, buf, len) least-significant byte of the word as the first byte of data, without any pre or post conditioning. This is used to combine the CRCs of each braid. */ +local z_crc_t crc_word OF((z_word_t data)); + local z_crc_t crc_word(data) z_word_t data; { @@ -728,6 +727,8 @@ local z_crc_t crc_word(data) return (z_crc_t)data; } +local z_word_t crc_word_big OF((z_word_t data)); + local z_word_t crc_word_big(data) z_word_t data; { From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] 149a536ed Fix a couple of old-style functions Message-ID: <20231017212811.0F82311134C@lists.varnish-cache.org> commit 149a536ed826bb31aeed72a0ef477b499ec7af82 Author: Poul-Henning Kamp Date: Tue Mar 23 23:17:09 2021 +0000 Fix a couple of old-style functions diff --git a/bin/varnishd/storage/stevedore.c b/bin/varnishd/storage/stevedore.c index 49835eba4..c75d6bf65 100644 --- a/bin/varnishd/storage/stevedore.c +++ b/bin/varnishd/storage/stevedore.c @@ -49,7 +49,7 @@ static pthread_mutex_t stv_mtx; */ const struct stevedore * -STV_next() +STV_next(void) { static struct stevedore *stv; struct stevedore *r; diff --git a/lib/libvarnish/vsa.c b/lib/libvarnish/vsa.c index 296f01374..b8d22ee72 100644 --- a/lib/libvarnish/vsa.c +++ b/lib/libvarnish/vsa.c @@ -183,7 +183,7 @@ static struct suckaddr bogo_ip_vsa; const struct suckaddr *bogo_ip = &bogo_ip_vsa; void -VSA_Init() +VSA_Init(void) { struct addrinfo hints, *res = NULL; From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] 2766d16aa build: Better handle zlib-specific C flags Message-ID: <20231017212811.31314111350@lists.varnish-cache.org> commit 2766d16aacde26e9cb4e262939d0a27c33a1e0e2 Author: Dridi Boukelmoune Date: Mon Jan 30 11:27:57 2023 +0100 build: Better handle zlib-specific C flags There are two warnings that we enforce for our own code that zlib does not. There's also the visibility attribute that we check at configure time. And regarding the visibility attribute, zlib no longer relies on a NO_VIZ macro and aligned with the autoconf naming convention and wants HAVE_HIDDEN instead. Conflicts: configure.ac lib/libvgz/Makefile.am diff --git a/configure.ac b/configure.ac index ca100e06c..3baa78565 100644 --- a/configure.ac +++ b/configure.ac @@ -244,29 +244,25 @@ AC_CHECK_FUNCS([pthread_setname_np]) AC_CHECK_FUNCS([pthread_mutex_isowned_np]) LIBS="${save_LIBS}" -# Support for visibility attribute -save_CFLAGS="${CFLAGS}" -CFLAGS="${CFLAGS} -Werror" +# zlib-specific flags +libvgz_extra_cflags="-Wno-error=strict-prototypes" +dnl https://github.com/madler/zlib/issues/633 +libvgz_extra_cflags="$libvgz_extra_cflags -Wno-error=deprecated-non-prototype" + +AC_SUBST(libvgz_extra_cflags) + +# Support for visibility attribute (zlib) AC_CACHE_CHECK([whether we have support for visibility attributes], [ac_cv_have_viz], - [AC_RUN_IFELSE( + [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ - #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) - # define ZLIB_INTERNAL __attribute__((visibility ("hidden"))) - #else - # define ZLIB_INTERNAL - #endif - int ZLIB_INTERNAL foo; + int __attribute__((visibility ("hidden"))) foo; ]],[])], - [ac_cv_have_viz=yes], - [ac_cv_have_viz=no]) + [AC_DEFINE([HAVE_HIDDEN], [1], + [Define to 1 if visibility attribute hidden is available.]) + ]) ]) -if test "$ac_cv_have_viz" = no; then - libvgz_extra_cflags="-DNO_VIZ" - AC_SUBST(libvgz_extra_cflags) -fi -CFLAGS="${save_CFLAGS}" if test "x$GCC" = "xyes"; then libvgz_extra_cflags="${libvgz_extra_cflags} -Wno-unknown-warning-option -Wno-implicit-fallthrough" diff --git a/lib/libvgz/Makefile.am b/lib/libvgz/Makefile.am index db9a48bdc..e6f7a1dbe 100644 --- a/lib/libvgz/Makefile.am +++ b/lib/libvgz/Makefile.am @@ -1,11 +1,14 @@ # -AM_LDFLAGS = $(AM_LT_LDFLAGS) +AM_CFLAGS = $(AM_LT_CFLAGS) \ + -D_LARGEFILE64_SOURCE=1 \ + -DZLIB_CONST \ + $(libvgz_extra_cflags) \ + @SAN_CFLAGS@ -noinst_LIBRARIES = libvgz.a +AM_LDFLAGS = $(AM_LT_LDFLAGS) -libvgz_a_CFLAGS = -D_LARGEFILE64_SOURCE=1 -DZLIB_CONST \ - $(libvgz_extra_cflags) @SAN_CFLAGS@ +noinst_LIBRARIES = libvgz.a libvgz_a_SOURCES = \ adler32.c \ From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] 96e9e4500 Add -Wno-unknown-warning-option to libvgz cocktail, to deal with older clangs. Message-ID: <20231017212811.4D696111354@lists.varnish-cache.org> commit 96e9e450027a1f875cbd31be32a3d5aa14cea332 Author: Poul-Henning Kamp Date: Mon Jan 30 12:07:29 2023 +0000 Add -Wno-unknown-warning-option to libvgz cocktail, to deal with older clangs. diff --git a/configure.ac b/configure.ac index 3baa78565..932691e65 100644 --- a/configure.ac +++ b/configure.ac @@ -245,7 +245,7 @@ AC_CHECK_FUNCS([pthread_mutex_isowned_np]) LIBS="${save_LIBS}" # zlib-specific flags -libvgz_extra_cflags="-Wno-error=strict-prototypes" +libvgz_extra_cflags="-Wno-error=strict-prototypes -Wno-unknown-warning-option" dnl https://github.com/madler/zlib/issues/633 libvgz_extra_cflags="$libvgz_extra_cflags -Wno-error=deprecated-non-prototype" From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] 0c356af2b build: Revisit zlib C flags one more time Message-ID: <20231017212811.6C081111358@lists.varnish-cache.org> commit 0c356af2bfd9c5f6eb667ca3ea7446c98b6ce4bd Author: Dridi Boukelmoune Date: Mon Jan 30 13:54:13 2023 +0100 build: Revisit zlib C flags one more time Trying to fix the build for clang 15 actually broke the build for GCC. The -Werror that was initially set after saving CFLAGS was meant to be part of NO_VIZ test. We turn warnings into errors later in the configure script so at this point we shouldn't care about it. If we really do, we can move this check below the line where -Werror is set. GCC chokes on -Wno-error=deprecated-non-prototype so instead we add it conditionally. To match the naming convention everywhere else, libvgz_extra_cflags was renamed to VGZ_CFLAGS. Refs 118fd10c9e81920e0c31906c2bf5c62a3f25cd5b Conflicts: configure.ac lib/libvgz/Makefile.am diff --git a/configure.ac b/configure.ac index 932691e65..b5e8b45ab 100644 --- a/configure.ac +++ b/configure.ac @@ -245,12 +245,13 @@ AC_CHECK_FUNCS([pthread_mutex_isowned_np]) LIBS="${save_LIBS}" # zlib-specific flags -libvgz_extra_cflags="-Wno-error=strict-prototypes -Wno-unknown-warning-option" +VGZ_CFLAGS="-Wno-error=strict-prototypes -Wno-unknown-warning-option" dnl https://github.com/madler/zlib/issues/633 -libvgz_extra_cflags="$libvgz_extra_cflags -Wno-error=deprecated-non-prototype" +AX_CHECK_COMPILE_FLAG([-Wno-error=deprecated-non-prototype], + [VGZ_CFLAGS="$VGZ_CFLAGS -Wno-error=deprecated-non-prototype"]) -AC_SUBST(libvgz_extra_cflags) +AC_SUBST(VGZ_CFLAGS) # Support for visibility attribute (zlib) AC_CACHE_CHECK([whether we have support for visibility attributes], diff --git a/lib/libvgz/Makefile.am b/lib/libvgz/Makefile.am index e6f7a1dbe..5eb0de6f8 100644 --- a/lib/libvgz/Makefile.am +++ b/lib/libvgz/Makefile.am @@ -3,7 +3,7 @@ AM_CFLAGS = $(AM_LT_CFLAGS) \ -D_LARGEFILE64_SOURCE=1 \ -DZLIB_CONST \ - $(libvgz_extra_cflags) \ + $(VGZ_CFLAGS) \ @SAN_CFLAGS@ AM_LDFLAGS = $(AM_LT_LDFLAGS) From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] dc4ca03c0 Fix a bug in our vgz-extension which is only triggered by vtest and only after 7565cdba7d10 Message-ID: <20231017212811.8705511135C@lists.varnish-cache.org> commit dc4ca03c0cf10fa2c19a4ccd612359a784a06357 Author: Poul-Henning Kamp Date: Fri May 12 21:59:06 2023 +0000 Fix a bug in our vgz-extension which is only triggered by vtest and only after 7565cdba7d10 diff --git a/lib/libvgz/deflate.c b/lib/libvgz/deflate.c index 69222e189..fb0a53684 100644 --- a/lib/libvgz/deflate.c +++ b/lib/libvgz/deflate.c @@ -1805,6 +1805,9 @@ local block_state deflate_stored(s, flush) s->strm->total_out += len; } } while (last == 0); + if (last) + s->strm->stop_bit = + (s->strm->total_out + s->pending) * 8 + s->bi_valid; /* Update the sliding window with the last s->w_size bytes of the copied * data, or append all of the copied data to the existing window if less From dridi.boukelmoune at gmail.com Tue Oct 17 21:28:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 17 Oct 2023 21:28:11 +0000 (UTC) Subject: [6.0] d4135153a try to stabilize vtc Message-ID: <20231017212811.AB3D4111361@lists.varnish-cache.org> commit d4135153a9d6b916da813caccccddd9d87e37265 Author: Nils Goroll Date: Sat Oct 10 18:38:58 2020 +0200 try to stabilize vtc seen in vtest: **** v1 vsl| 1004 Begin b bereq 1003 fetch **** v1 vsl| 1004 VCL_use b vcl1 **** v1 vsl| 1004 Timestamp b Start: 1602334643.946723 0.000000 0.000000 **** v1 vsl| 1004 BereqMethod b PUT **** v1 vsl| 1004 BereqURL b /2 **** v1 vsl| 1004 BereqProtocol b HTTP/1.1 **** v1 vsl| 1004 BereqHeader b Host: 127.0.0.1 **** v1 vsl| 1004 BereqHeader b Content-Length: 250000 **** v1 vsl| 1004 BereqHeader b X-Forwarded-For: 127.0.0.1 **** v1 vsl| 1004 BereqMethod b GET **** v1 vsl| 1004 BereqHeader b Accept-Encoding: gzip **** v1 vsl| 1004 BereqHeader b X-Varnish: 1004 **** v1 vsl| 1004 VCL_call b BACKEND_FETCH **** v1 vsl| 1004 VCL_return b fetch **** v1 vsl| 1004 BackendOpen b 26 s1 127.0.0.1 36579 127.0.0.1 60878 connect **** v1 vsl| 1004 Timestamp b Bereq: 1602334643.956883 0.010159 0.010159 **** v1 vsl| 1004 FetchError b HTC eof (-1) Ref #3433 diff --git a/bin/varnishtest/tests/r03433.vtc b/bin/varnishtest/tests/r03433.vtc index 0ebbb5d9b..d361caada 100644 --- a/bin/varnishtest/tests/r03433.vtc +++ b/bin/varnishtest/tests/r03433.vtc @@ -1,6 +1,11 @@ varnishtest "req.body and restarts" -server s1 -repeat 4 { +server s1 -repeat 2 { + rxreq + txresp -bodylen 1000 +} -start + +server s2 -repeat 2 { rxreq txresp -bodylen 1000 } -start @@ -14,6 +19,14 @@ varnish v1 -vcl+backend { return (hash); } + sub vcl_backend_fetch { + if (bereq.url == "/1") { + set bereq.backend = s1; + } else { + set bereq.backend = s2; + } + } + sub vcl_backend_response { set beresp.ttl = 0.1s; } From dridi.boukelmoune at gmail.com Wed Oct 18 08:16:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 08:16:05 +0000 (UTC) Subject: [master] 263528673 vtc: Avoid cycling the barrier in t02014 Message-ID: <20231018081605.EE9B2100326@lists.varnish-cache.org> commit 2635286737f3bbb123e7a14292a793974eed2bb5 Author: Dridi Boukelmoune Date: Thu Oct 12 11:17:09 2023 +0200 vtc: Avoid cycling the barrier in t02014 It was particularly hard to follow once we reach client c3. diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index f47eed657..8add78a0d 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -1,6 +1,9 @@ varnishtest "Exercise h/2 sender flow control code" -barrier b1 sock 3 -cyclic +barrier b1 sock 3 +barrier b2 sock 3 +barrier b3 sock 3 +barrier b4 sock 3 server s1 { rxreq @@ -23,7 +26,9 @@ varnish v1 -vcl+backend { } sub vcl_deliver { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } } } -start @@ -43,7 +48,7 @@ client c1 { } -start stream 1 { - txreq + txreq -hdr barrier ${b1_sock} barrier b1 sync delay .5 txwinup -size 256 @@ -61,15 +66,15 @@ client c1 { client c2 { stream 0 { - barrier b1 sync + barrier b2 sync } -start stream 1 { - txreq + txreq -hdr barrier ${b2_sock} txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b2 sync } -run stream 0 -wait @@ -77,8 +82,8 @@ client c2 { client c3 { stream 0 { - barrier b1 sync - barrier b1 sync + barrier b3 sync + barrier b4 sync delay .5 txwinup -size 256 delay .5 @@ -89,17 +94,17 @@ client c3 { } -start stream 1 { - txreq -req "POST" -nostrend + txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b3 sync } -run stream 3 { - txreq - barrier b1 sync + txreq -hdr barrier ${b4_sock} + barrier b4 sync delay .5 txwinup -size 256 delay .5 From dridi.boukelmoune at gmail.com Wed Oct 18 08:16:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 08:16:06 +0000 (UTC) Subject: [master] ff8ae1fad transport: New poll method Message-ID: <20231018081606.14C5D100328@lists.varnish-cache.org> commit ff8ae1fada46e9918d6446120060761f2f7b5ab3 Author: Dridi Boukelmoune Date: Wed Oct 11 11:57:48 2023 +0200 transport: New poll method The goal is for top-level transports to report whether the client is still present or not. diff --git a/bin/varnishd/cache/cache_transport.h b/bin/varnishd/cache/cache_transport.h index 0e5f03c65..79f0a7b2d 100644 --- a/bin/varnishd/cache/cache_transport.h +++ b/bin/varnishd/cache/cache_transport.h @@ -44,6 +44,7 @@ typedef void vtr_sess_panic_f (struct vsb *, const struct sess *); typedef void vtr_req_panic_f (struct vsb *, const struct req *); typedef void vtr_req_fail_f (struct req *, stream_close_t); typedef void vtr_reembark_f (struct worker *, struct req *); +typedef int vtr_poll_f (struct req *); typedef int vtr_minimal_response_f (struct req *, uint16_t status); struct transport { @@ -64,6 +65,7 @@ struct transport { vtr_sess_panic_f *sess_panic; vtr_req_panic_f *req_panic; vtr_reembark_f *reembark; + vtr_poll_f *poll; vtr_minimal_response_f *minimal_response; VTAILQ_ENTRY(transport) list; From dridi.boukelmoune at gmail.com Wed Oct 18 08:16:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 08:16:06 +0000 (UTC) Subject: [master] 6ad7be6fe vcl_vrt: Skip VCL execution if the client is gone Message-ID: <20231018081606.4CCFE10032D@lists.varnish-cache.org> commit 6ad7be6fe898f77f3a5ea61839ca99266d0b83d2 Author: Dridi Boukelmoune Date: Wed Oct 11 19:51:58 2023 +0200 vcl_vrt: Skip VCL execution if the client is gone Once a client is reportedly gone, processing its VCL task(s) is just a waste of resources. The execution of client-facing VCL is intercepted and an artificial return(fail) is returned in that scenario. Thanks to the introduction of the universal return(fail) proper error handling and resource tear down is already in place, which makes this change safe modulus unknown bugs. This adds a circuit breaker anywhere in the client state machine where there is VCL execution. A new Reset time stamp is logged to convey when a task does not complete because the client is gone. This is a good complement to the walk away feature and its original circuit breaker for the waiting list, but this has not been integrated yet. While the request is technically failed, it won't increase the vcl_fail counter, and a new req_reset counter is incremented. This new behavior is guarded by a new vcl_req_reset feature flag, enabled by default. Refs #3835 Refs 61a15cbffe1141c13b87e30d48ce1402f84433bf Refs e5efc2c8dc0d003e5f0fa1a30b598f5949112897 Refs ba54dc919076b1ddb85434d886ce82a6553d926b Refs 6f50a00f80c7f74b2a8b18bb80593f58b74816fd Refs b8816994cfab58261d8000ea8e6941cb5de640fa diff --git a/bin/varnishd/cache/cache_vrt_vcl.c b/bin/varnishd/cache/cache_vrt_vcl.c index c98274e9d..85b594b7d 100644 --- a/bin/varnishd/cache/cache_vrt_vcl.c +++ b/bin/varnishd/cache/cache_vrt_vcl.c @@ -42,6 +42,7 @@ #include "vbm.h" #include "cache_director.h" +#include "cache_transport.h" #include "cache_vcl.h" #include "vcc_interface.h" @@ -521,6 +522,40 @@ VRT_VCL_Allow_Discard(struct vclref **refp) FREE_OBJ(ref); } +/*-------------------------------------------------------------------- + */ + +static int +req_poll(struct worker *wrk, struct req *req) +{ + struct req *top; + + /* NB: Since a fail transition leads to vcl_synth, the request may be + * short-circuited twice. + */ + if (req->req_reset) { + wrk->vpi->handling = VCL_RET_FAIL; + return (-1); + } + + top = req->top->topreq; + CHECK_OBJ_NOTNULL(top, REQ_MAGIC); + CHECK_OBJ_NOTNULL(top->transport, TRANSPORT_MAGIC); + + if (!FEATURE(FEATURE_VCL_REQ_RESET)) + return (0); + if (top->transport->poll == NULL) + return (0); + if (top->transport->poll(top) >= 0) + return (0); + + VSLb_ts_req(req, "Reset", W_TIM_real(wrk)); + wrk->stats->req_reset++; + wrk->vpi->handling = VCL_RET_FAIL; + req->req_reset = 1; + return (-1); +} + /*-------------------------------------------------------------------- * Method functions to call into VCL programs. * @@ -552,6 +587,8 @@ vcl_call_method(struct worker *wrk, struct req *req, struct busyobj *bo, CHECK_OBJ_NOTNULL(req->sp, SESS_MAGIC); CHECK_OBJ_NOTNULL(req->vcl, VCL_MAGIC); CHECK_OBJ_NOTNULL(req->top, REQTOP_MAGIC); + if (req_poll(wrk, req)) + return; VCL_Req2Ctx(&ctx, req); } assert(ctx.now != 0); diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index e8ea7a36d..d8b440a08 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -76,6 +76,10 @@ Resp Restart Client request is being restarted. +Reset + The client closed its connection or reset its stream. Request + processing is interrupted and considered failed. + Pipe handling timestamps ~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/include/tbl/feature_bits.h b/include/tbl/feature_bits.h index 1ff2a361f..808efe917 100644 --- a/include/tbl/feature_bits.h +++ b/include/tbl/feature_bits.h @@ -91,6 +91,11 @@ FEATURE_BIT(TRACE, trace, "Required for tracing vcl_init / vcl_fini" ) +FEATURE_BIT(VCL_REQ_RESET, vcl_req_reset, + "Stop processing client VCL once the client is gone. " + "When this happens MAIN.req_reset is incremented." +) + #undef FEATURE_BIT /*lint -restore */ diff --git a/include/tbl/params.h b/include/tbl/params.h index 39cedbb13..ae622e53d 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1824,7 +1824,9 @@ PARAM_PRE PARAM_BITS( /* name */ feature, /* fld */ feature_bits, - /* def */ "+validate_headers", + /* def */ + "+validate_headers," + "+vcl_req_reset", /* descr */ "Enable/Disable various minor features.\n" "\tdefault\tSet default value\n" diff --git a/include/tbl/req_flags.h b/include/tbl/req_flags.h index 88eaff639..6a9e6acbb 100644 --- a/include/tbl/req_flags.h +++ b/include/tbl/req_flags.h @@ -40,6 +40,7 @@ REQ_FLAG(is_hit, 0, 0, "") REQ_FLAG(waitinglist, 0, 0, "") REQ_FLAG(want100cont, 0, 0, "") REQ_FLAG(late100cont, 0, 0, "") +REQ_FLAG(req_reset, 0, 0, "") #define REQ_BEREQ_FLAG(lower, vcl_r, vcl_w, doc) \ REQ_FLAG(lower, vcl_r, vcl_w, doc) #include "tbl/req_bereq_flags.h" diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 1f63b45a4..13c35d9be 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -345,6 +345,13 @@ Number of times an HTTP/2 stream was refused because the queue was too long already. See also parameter thread_queue_limit. +.. varnish_vsc:: req_reset + :group: wrk + :oneliner: Requests reset + + Number of times a client left before the VCL processing of its + requests completed. + .. varnish_vsc:: n_object :type: gauge :group: wrk From dridi.boukelmoune at gmail.com Wed Oct 18 08:16:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 08:16:06 +0000 (UTC) Subject: [master] 05a686983 http2_session: Implement transport polling Message-ID: <20231018081606.89220100331@lists.varnish-cache.org> commit 05a686983df5e19298caf6806c99c6c1fece4500 Author: Dridi Boukelmoune Date: Wed Oct 11 12:38:21 2023 +0200 http2_session: Implement transport polling The error check is not performed in a critical section to avoid contention, at the risk of not seeing the error until the next transport poll. diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 672b40d64..ef0d88ede 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -441,6 +441,16 @@ h2_new_session(struct worker *wrk, void *arg) wrk->vsl = NULL; } +static int v_matchproto_(vtr_poll_f) +h2_poll(struct req *req) +{ + struct h2_req *r2; + + CHECK_OBJ_NOTNULL(req, REQ_MAGIC); + CAST_OBJ_NOTNULL(r2, req->transport_priv, H2_REQ_MAGIC); + return (r2->error ? -1 : 1); +} + struct transport HTTP2_transport = { .name = "HTTP/2", .magic = TRANSPORT_MAGIC, @@ -450,4 +460,5 @@ struct transport HTTP2_transport = { .req_body = h2_req_body, .req_fail = h2_req_fail, .sess_panic = h2_sess_panic, + .poll = h2_poll, }; diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index 8add78a0d..f4083c890 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -5,6 +5,9 @@ barrier b2 sock 3 barrier b3 sock 3 barrier b4 sock 3 +barrier b2_err cond 2 +barrier b3_err cond 2 + server s1 { rxreq txresp -bodylen 66300 @@ -64,6 +67,13 @@ client c1 { stream 0 -wait } -run +varnish v1 -vsl_catchup + +logexpect l2 -v v1 -g raw { + expect * * ReqMethod GET + expect * = VCL_call DELIVER +} -start + client c2 { stream 0 { barrier b2 sync @@ -71,6 +81,7 @@ client c2 { stream 1 { txreq -hdr barrier ${b2_sock} + barrier b2_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -78,7 +89,17 @@ client c2 { } -run stream 0 -wait -} -run +} -start + +logexpect l2 -wait +barrier b2_err sync + +client c2 -wait + +logexpect l3 -v v1 -g raw { + expect * * ReqMethod POST + expect * = VCL_call DELIVER +} -start client c3 { stream 0 { @@ -96,6 +117,7 @@ client c3 { stream 1 { txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" + barrier b3_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -117,4 +139,9 @@ client c3 { } -run stream 0 -wait -} -run +} -start + +logexpect l3 -wait +barrier b3_err sync + +client c3 -wait diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc new file mode 100644 index 000000000..3b7e90e8a --- /dev/null +++ b/bin/varnishtest/tests/t02025.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 reset interrupt" + +barrier b1 sock 2 +barrier b2 sock 2 + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -vcl { + import vtc; + + backend be none; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + vtc.barrier_sync("${b2_sock}"); + } + + sub vcl_miss { + vtc.panic("unreachable"); + } +} -start + +logexpect l1 -v v1 -g raw -i Debug { + expect * * Debug "^H2RXF RST_STREAM" +} -start + +client c1 { + stream 1 { + txreq + barrier b1 sync + txrst + } -run +} -start + +logexpect l1 -wait +barrier b2 sync + +varnish v1 -vsl_catchup +varnish v1 -expect req_reset == 1 + +# NB: The varnishncsa command below shows a minimal pattern to collect +# "rapid reset" suspects per session, with the IP address. Here rapid +# is interpreted as before a second elapsed. Session VXIDs showing up +# numerous times become increasingly more suspicious. The format can of +# course be extended to add anything else useful for data mining. +shell -expect "1000 ${localhost}" { + varnishncsa -n ${v1_name} -d \ + -q 'Timestamp:Reset[2] < 1.0' -F '%{VSL:Begin[2]}x %h' +} diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index d8b440a08..98c126d2d 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -77,7 +77,8 @@ Restart Client request is being restarted. Reset - The client closed its connection or reset its stream. Request + The client closed its connection, reset its stream or caused + a stream error that forced Varnish to reset the stream. Request processing is interrupted and considered failed. Pipe handling timestamps diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 13c35d9be..14f3e266f 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -350,7 +350,9 @@ :oneliner: Requests reset Number of times a client left before the VCL processing of its - requests completed. + requests completed. For HTTP/2 sessions, either the stream was + reset by an RST_STREAM frame from the client, or a stream or + connection error occurred. .. varnish_vsc:: n_object :type: gauge From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:05 +0000 (UTC) Subject: [6.0] e464a940a Move the "loop" word up to global level, so it works everywhere. Message-ID: <20231018092105.63F301028BD@lists.varnish-cache.org> commit e464a940a444858c1e75179279990f11874a9a54 Author: Poul-Henning Kamp Date: Thu Oct 15 08:02:29 2020 +0000 Move the "loop" word up to global level, so it works everywhere. diff --git a/bin/varnishtest/vtc.c b/bin/varnishtest/vtc.c index c7350df0a..c970543ec 100644 --- a/bin/varnishtest/vtc.c +++ b/bin/varnishtest/vtc.c @@ -306,6 +306,7 @@ parse_string(const char *spec, const struct cmds *cmd, void *priv, char *e, *p, *q, *f, *buf; int nest_brace; int tn; + unsigned n, m; const struct cmds *cp; AN(spec); @@ -414,6 +415,24 @@ parse_string(const char *spec, const struct cmds *cmd, void *priv, } } + +/* SECTION: loop loop + * + * loop NUMBER STRING + * Process STRING as a specification, NUMBER times. + * + * This works inside all specification strings + */ + + if (!strcmp(token_s[0], "loop")) { + n = strtoul(token_s[1], NULL, 0); + for (m = 0; m < n; m++) { + vtc_log(vl, 4, "Loop #%u", m); + parse_string(token_s[2], cmd, priv, vl); + } + continue; + } + for (cp = cmd; cp->name != NULL; cp++) if (!strcmp(token_s[0], cp->name)) break; diff --git a/bin/varnishtest/vtc_http.c b/bin/varnishtest/vtc_http.c index 0ea454a83..9cd701f8f 100644 --- a/bin/varnishtest/vtc_http.c +++ b/bin/varnishtest/vtc_http.c @@ -1616,29 +1616,6 @@ cmd_http_accept(CMD_ARGS) vtc_log(vl, 3, "Accepted socket fd is %d", hp->fd); } -/* SECTION: client-server.spec.loop - * - * loop NUMBER STRING - * Process STRING as a specification, NUMBER times. - */ - -static void -cmd_http_loop(CMD_ARGS) -{ - struct http *hp; - unsigned n, m; - - CAST_OBJ_NOTNULL(hp, priv, HTTP_MAGIC); - AN(av[1]); - AN(av[2]); - AZ(av[3]); - n = strtoul(av[1], NULL, 0); - for (m = 1 ; m <= n; m++) { - vtc_log(vl, 4, "Loop #%u", m); - parse_string(av[2], cmd, hp, vl); - } -} - /* SECTION: client-server.spec.fatal * * fatal|non_fatal @@ -1820,7 +1797,6 @@ const struct cmds http_cmds[] = { /* spec */ CMD_HTTP(fatal) - CMD_HTTP(loop) CMD_HTTP(non_fatal) /* body */ From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:05 +0000 (UTC) Subject: [6.0] 6cc5e3cdb Consume less random bits, and don't pace after ramp-up Message-ID: <20231018092105.892A31028C0@lists.varnish-cache.org> commit 6cc5e3cdb55ed3096c77991b29dd810d4627b866 Author: Poul-Henning Kamp Date: Fri Feb 8 10:01:42 2019 +0000 Consume less random bits, and don't pace after ramp-up diff --git a/bin/varnishtest/vtc_main.c b/bin/varnishtest/vtc_main.c index 516ff99c4..52ba8ba6b 100644 --- a/bin/varnishtest/vtc_main.c +++ b/bin/varnishtest/vtc_main.c @@ -277,7 +277,6 @@ start_test(void) assert(jp->buf != MAP_FAILED); memset(jp->buf, 0, jp->bufsiz); - VRND_SeedAll(); bprintf(tmpdir, "%s/vtc.%d.%08x", tmppath, (int)getpid(), (unsigned)random()); AZ(mkdir(tmpdir, 0711)); @@ -538,6 +537,7 @@ main(int argc, char * const *argv) { int ch, i; int ntest = 1; /* Run tests this many times */ + int nstart = 0; uintmax_t bufsiz; const char *p; char buf[PATH_MAX]; @@ -566,6 +566,7 @@ main(int argc, char * const *argv) if (p != NULL) vtc_maxdur = atoi(p); + VRND_SeedAll(); setbuf(stdout, NULL); setbuf(stderr, NULL); while ((ch = getopt(argc, argv, "b:D:hij:kLln:p:qt:vW")) != -1) { @@ -658,7 +659,7 @@ main(int argc, char * const *argv) start_test(); njob++; /* Stagger ramp-up */ - if (njob < npar) + if (nstart++ < npar) (void)usleep(random() % 100000L); i = 1; continue; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:05 +0000 (UTC) Subject: [6.0] 607356940 Optimize varnishtests central scheduler Message-ID: <20231018092105.9F87F1028C4@lists.varnish-cache.org> commit 60735694056e1af548937551bb2fe9f916f4959c Author: Poul-Henning Kamp Date: Fri Feb 8 10:22:57 2019 +0000 Optimize varnishtests central scheduler diff --git a/bin/varnishtest/vtc_main.c b/bin/varnishtest/vtc_main.c index 52ba8ba6b..a24c94b68 100644 --- a/bin/varnishtest/vtc_main.c +++ b/bin/varnishtest/vtc_main.c @@ -55,6 +55,17 @@ static const char *argv0; +struct buf { + unsigned magic; +#define BUF_MAGIC 0x39d1258a + VTAILQ_ENTRY(buf) list; + char *buf; + struct vsb *diag; + size_t bufsiz; +}; + +static VTAILQ_HEAD(, buf) free_bufs = VTAILQ_HEAD_INITIALIZER(free_bufs); + struct vtc_tst { unsigned magic; #define TST_MAGIC 0x618d8b88 @@ -71,14 +82,13 @@ struct vtc_job { pid_t child; struct vev *ev; struct vev *evt; - char *buf; + struct buf *bp; char *tmpdir; - unsigned bufsiz; double t0; - struct vsb *diag; int killed; }; + int iflg = 0; unsigned vtc_maxdur = 60; static unsigned vtc_bufsiz = 1024 * 1024; @@ -98,6 +108,40 @@ char *vmod_path = NULL; struct vsb *params_vsb = NULL; int leave_temp; int vtc_witness = 0; +static struct vsb *cbvsb; + +static struct buf * +get_buf(void) +{ + struct buf *bp; + + bp = VTAILQ_FIRST(&free_bufs); + CHECK_OBJ_ORNULL(bp, BUF_MAGIC); + if (bp != NULL) { + VTAILQ_REMOVE(&free_bufs, bp, list); + VSB_clear(bp->diag); + } else { + ALLOC_OBJ(bp, BUF_MAGIC); + AN(bp); + bp->bufsiz = vtc_bufsiz; + bp->buf = mmap(NULL, bp->bufsiz, PROT_READ|PROT_WRITE, + MAP_ANON | MAP_SHARED, -1, 0); + assert(bp->buf != MAP_FAILED); + bp->diag = VSB_new_auto(); + AN(bp->diag); + } + memset(bp->buf, 0, bp->bufsiz); + return (bp); +} + +static void +rel_buf(struct buf **bp) +{ + CHECK_OBJ_NOTNULL(*bp, BUF_MAGIC); + + VTAILQ_INSERT_HEAD(&free_bufs, (*bp), list); + *bp = NULL; +} /********************************************************************** * Parse a -D option argument into a name/val pair, and insert @@ -160,7 +204,6 @@ tst_cb(const struct vev *ve, int what) double t; FILE *f; char *p; - struct vsb *v; CAST_OBJ_NOTNULL(jp, ve->priv, JOB_MAGIC); @@ -175,8 +218,9 @@ tst_cb(const struct vev *ve, int what) *buf = '\0'; i = read(ve->fd, buf, sizeof buf); if (i > 0) - VSB_bcat(jp->diag, buf, i); + VSB_bcat(jp->bp->diag, buf, i); if (i == 0) { + njob--; px = wait4(jp->child, &stx, 0, NULL); assert(px == jp->child); @@ -187,21 +231,20 @@ tst_cb(const struct vev *ve, int what) if (ecode == 0) ecode = WEXITSTATUS(stx); - AZ(VSB_finish(jp->diag)); - v = VSB_new_auto(); - AN(v); - VSB_cat(v, jp->buf); - p = strchr(jp->buf, '\0'); - if (p > jp->buf && p[-1] != '\n') - VSB_putc(v, '\n'); - VSB_quote_pfx(v, "* diag 0.0 ", - VSB_data(jp->diag), -1, VSB_QUOTE_NONL); - AZ(VSB_finish(v)); - VSB_destroy(&jp->diag); - AZ(munmap(jp->buf, jp->bufsiz)); + AZ(VSB_finish(jp->bp->diag)); + + VSB_clear(cbvsb); + VSB_cat(cbvsb, jp->bp->buf); + p = strchr(jp->bp->buf, '\0'); + if (p > jp->bp->buf && p[-1] != '\n') + VSB_putc(cbvsb, '\n'); + VSB_quote_pfx(cbvsb, "* diag 0.0 ", + VSB_data(jp->bp->diag), -1, VSB_QUOTE_NONL); + AZ(VSB_finish(cbvsb)); + rel_buf(&jp->bp); if ((ecode > 1 && vtc_verbosity) || vtc_verbosity > 1) - printf("%s", VSB_data(v)); + printf("%s", VSB_data(cbvsb)); if (!ecode) vtc_good++; @@ -217,11 +260,10 @@ tst_cb(const struct vev *ve, int what) bprintf(buf, "%s/LOG", jp->tmpdir); f = fopen(buf, "w"); AN(f); - (void)fprintf(f, "%s\n", VSB_data(v)); + (void)fprintf(f, "%s\n", VSB_data(cbvsb)); AZ(fclose(f)); } free(jp->tmpdir); - VSB_destroy(&v); if (jp->killed) printf("# top TEST %s TIMED OUT (kill -9)\n", @@ -267,15 +309,7 @@ start_test(void) ALLOC_OBJ(jp, JOB_MAGIC); AN(jp); - jp->diag = VSB_new_auto(); - AN(jp->diag); - - jp->bufsiz = vtc_bufsiz; - - jp->buf = mmap(NULL, jp->bufsiz, PROT_READ|PROT_WRITE, - MAP_ANON | MAP_SHARED, -1, 0); - assert(jp->buf != MAP_FAILED); - memset(jp->buf, 0, jp->bufsiz); + jp->bp = get_buf(); bprintf(tmpdir, "%s/vtc.%d.%08x", tmppath, (int)getpid(), (unsigned)random()); @@ -286,7 +320,7 @@ start_test(void) AN(tp->ntodo); tp->ntodo--; VTAILQ_REMOVE(&tst_head, tp, list); - if (tp->ntodo >0) + if (tp->ntodo > 0) VTAILQ_INSERT_TAIL(&tst_head, tp, list); jp->tst = tp; @@ -306,7 +340,7 @@ start_test(void) assert(dup2(p[1], STDERR_FILENO) == STDERR_FILENO); VSUB_closefrom(STDERR_FILENO + 1); retval = exec_file(jp->tst->filename, jp->tst->script, - jp->tmpdir, jp->buf, jp->bufsiz); + jp->tmpdir, jp->bp->buf, jp->bp->bufsiz); exit(retval); } closefd(&p[1]); @@ -567,6 +601,8 @@ main(int argc, char * const *argv) vtc_maxdur = atoi(p); VRND_SeedAll(); + cbvsb = VSB_new_auto(); + AN(cbvsb); setbuf(stdout, NULL); setbuf(stderr, NULL); while ((ch = getopt(argc, argv, "b:D:hij:kLln:p:qt:vW")) != -1) { From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:05 +0000 (UTC) Subject: [6.0] 7bdd75312 Implement an optional high performance "cleaner" Message-ID: <20231018092105.C27981028C7@lists.varnish-cache.org> commit 7bdd7531206f370592cd468cf6cf6d86ab20a6e5 Author: Poul-Henning Kamp Date: Fri Feb 8 12:08:24 2019 +0000 Implement an optional high performance "cleaner" When running really massive runs, "-j180 -n10000" kind of things, the "rm -rf" of the tmpdir becomes the limiting factor. The new -C option sends that int nice(1)'ed child process. diff --git a/bin/varnishtest/vtc_main.c b/bin/varnishtest/vtc_main.c index a24c94b68..d942a490a 100644 --- a/bin/varnishtest/vtc_main.c +++ b/bin/varnishtest/vtc_main.c @@ -110,6 +110,9 @@ int leave_temp; int vtc_witness = 0; static struct vsb *cbvsb; +static int cleaner_fd = -1; +static pid_t cleaner_pid; + static struct buf * get_buf(void) { @@ -174,6 +177,7 @@ usage(void) #define FMT " %-28s # %s\n" fprintf(stderr, FMT, "-b size", "Set internal buffer size (default: 1M)"); + fprintf(stderr, FMT, "-C", "Use cleaner subprocess"); fprintf(stderr, FMT, "-D name=val", "Define macro"); fprintf(stderr, FMT, "-i", "Find varnish binaries in build tree"); fprintf(stderr, FMT, "-j jobs", "Run this many tests in parallel"); @@ -189,6 +193,86 @@ usage(void) exit(1); } +/********************************************************************** + * When running many tests, cleaning the tmpdir with "rm -rf" becomes + * chore which limits our performance. + * When the number of tests are above 100, we spawn a child-process + * to do that for us. + */ + +static void +cleaner_do(const char *dirname) +{ + char buf[BUFSIZ]; + + AZ(memcmp(dirname, tmppath, strlen(tmppath))); + if (cleaner_pid > 0) { + bprintf(buf, "%s\n", dirname); + assert(write(cleaner_fd, buf, strlen(buf)) == strlen(buf)); + return; + } + bprintf(buf, "exec /bin/rm -rf %s\n", dirname); + AZ(system(buf)); +} + +static void +cleaner_setup(void) +{ + int p[2], st; + char buf[BUFSIZ]; + char *q; + pid_t pp; + + AZ(pipe(p)); + assert(p[0] > STDERR_FILENO); + assert(p[1] > STDERR_FILENO); + cleaner_pid = fork(); + assert(cleaner_pid >= 0); + if (cleaner_pid == 0) { + closefd(&p[1]); + AZ(nice(1)); + setbuf(stdin, NULL); + AZ(dup2(p[0], STDIN_FILENO)); + while (fgets(buf, sizeof buf, stdin)) { + AZ(memcmp(buf, tmppath, strlen(tmppath))); + q = buf + strlen(buf); + assert(q > buf); + assert(q[-1] == '\n'); + q[-1] = '\0'; + + /* Dont expend a shell on running /bin/rm */ + pp = fork(); + assert(pp >= 0); + if (pp == 0) + exit(execl("/bin/rm", "rm", "-rf", buf, NULL)); + assert(waitpid(pp, &st, 0) == pp); + AZ(st); + } + exit(0); + } + closefd(&p[0]); + cleaner_fd = p[1]; +} + +static void +cleaner_neuter(void) +{ + if (cleaner_pid > 0) + closefd(&cleaner_fd); +} + +static void +cleaner_finish(void) +{ + int st; + + if (cleaner_pid > 0) { + closefd(&cleaner_fd); + assert(waitpid(cleaner_pid, &st, 0) == cleaner_pid); + AZ(st); + } +} + /********************************************************************** * CallBack */ @@ -254,8 +338,7 @@ tst_cb(const struct vev *ve, int what) vtc_fail++; if (leave_temp == 0 || (leave_temp == 1 && ecode <= 1)) { - bprintf(buf, "rm -rf %s", jp->tmpdir); - AZ(system(buf)); + cleaner_do(jp->tmpdir); } else { bprintf(buf, "%s/LOG", jp->tmpdir); f = fopen(buf, "w"); @@ -334,6 +417,7 @@ start_test(void) jp->child = fork(); assert(jp->child >= 0); if (jp->child == 0) { + cleaner_neuter(); // Too dangerous to have around AZ(setpgid(getpid(), 0)); VFIL_null_fd(STDIN_FILENO); assert(dup2(p[1], STDOUT_FILENO) == STDOUT_FILENO); @@ -572,6 +656,7 @@ main(int argc, char * const *argv) int ch, i; int ntest = 1; /* Run tests this many times */ int nstart = 0; + int use_cleaner = 0; uintmax_t bufsiz; const char *p; char buf[PATH_MAX]; @@ -605,7 +690,7 @@ main(int argc, char * const *argv) AN(cbvsb); setbuf(stdout, NULL); setbuf(stderr, NULL); - while ((ch = getopt(argc, argv, "b:D:hij:kLln:p:qt:vW")) != -1) { + while ((ch = getopt(argc, argv, "b:CD:hij:kLln:p:qt:vW")) != -1) { switch (ch) { case 'b': if (VNUM_2bytes(optarg, &bufsiz, 0)) { @@ -620,6 +705,9 @@ main(int argc, char * const *argv) } vtc_bufsiz = (unsigned)bufsiz; break; + case 'C': + use_cleaner = !use_cleaner; + break; case 'D': if (!parse_D_opt(optarg)) { fprintf(stderr, "Cannot parse D opt '%s'\n", @@ -689,6 +777,9 @@ main(int argc, char * const *argv) vb = VEV_New(); + if (use_cleaner) + cleaner_setup(); + i = 0; while (!VTAILQ_EMPTY(&tst_head) || i) { if (!VTAILQ_EMPTY(&tst_head) && njob < npar) { @@ -702,6 +793,7 @@ main(int argc, char * const *argv) } i = VEV_Once(vb); } + cleaner_finish(); if (vtc_continue) fprintf(stderr, "%d tests failed, %d tests skipped, %d tests passed\n", From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:05 +0000 (UTC) Subject: [6.0] 54148d72d Add Debug to the default VSL mask Message-ID: <20231018092106.093F71028CF@lists.varnish-cache.org> commit 54148d72d4f3b326dd5a93ac4715ca9e65cac7a1 Author: Dridi Boukelmoune Date: Thu May 16 10:27:49 2019 +0200 Add Debug to the default VSL mask The name implies that this is not for production usage. diff --git a/bin/varnishd/mgt/mgt_param_bits.c b/bin/varnishd/mgt/mgt_param_bits.c index 263d8a34d..7ea66d7e1 100644 --- a/bin/varnishd/mgt/mgt_param_bits.c +++ b/bin/varnishd/mgt/mgt_param_bits.c @@ -135,6 +135,7 @@ tweak_vsl_mask(struct vsb *vsb, const struct parspec *par, const char *arg) (void)bit(mgt_param.vsl_mask, SLT_ObjProtocol, BSET); (void)bit(mgt_param.vsl_mask, SLT_ObjReason, BSET); (void)bit(mgt_param.vsl_mask, SLT_ObjStatus, BSET); + (void)bit(mgt_param.vsl_mask, SLT_Debug, BSET); } else { return (bit_tweak(vsb, mgt_param.vsl_mask, SLT__Reserved, arg, VSL_tags, diff --git a/bin/varnishtest/vtc_varnish.c b/bin/varnishtest/vtc_varnish.c index 099a1abae..b0c27bac6 100644 --- a/bin/varnishtest/vtc_varnish.c +++ b/bin/varnishtest/vtc_varnish.c @@ -425,6 +425,7 @@ varnish_launch(struct varnish *v) VSB_printf(vsb, " -p sigsegv_handler=on"); VSB_printf(vsb, " -p thread_pool_min=10"); VSB_printf(vsb, " -p debug=+vtc_mode"); + VSB_printf(vsb, " -p vsl_mask=+Debug"); if (!v->has_a_arg) { VSB_printf(vsb, " -a '%s'", "127.0.0.1:0"); if (v->proto != NULL) From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] debba3969 Merge from VTEST: Message-ID: <20231018092106.2219A1028D9@lists.varnish-cache.org> commit debba396929db57f8e79014a0cbc3a8a9377025c Author: Poul-Henning Kamp Date: Mon Dec 2 11:53:35 2019 +0000 Merge from VTEST: Avoid VSB_printf for static strings Done with the following semantic patch for Coccinelle: @@ expression vsb, fmt; @@ - VSB_printf(vsb, fmt); + VSB_cat(vsb, fmt); This patch is available in the Varnish source tree. diff --git a/bin/varnishtest/vtc_log.c b/bin/varnishtest/vtc_log.c index 1e6e321e8..94cade1ea 100644 --- a/bin/varnishtest/vtc_log.c +++ b/bin/varnishtest/vtc_log.c @@ -246,7 +246,7 @@ vtc_hexdump(struct vtclog *vl, int lvl, const char *pfx, else { for (l = 0; l < len; l++, ss++) { if (l > 512) { - VSB_printf(vl->vsb, "..."); + VSB_cat(vl->vsb, "..."); break; } if (nl) { @@ -255,13 +255,13 @@ vtc_hexdump(struct vtclog *vl, int lvl, const char *pfx, } VSB_printf(vl->vsb, " %02x", *ss); if ((l & 0xf) == 0xf) { - VSB_printf(vl->vsb, "\n"); + VSB_cat(vl->vsb, "\n"); nl = 1; } } } if (!nl) - VSB_printf(vl->vsb, "\n"); + VSB_cat(vl->vsb, "\n"); REL_VL(vl); if (lvl == 0) vtc_logfail(); diff --git a/bin/varnishtest/vtc_main.c b/bin/varnishtest/vtc_main.c index d942a490a..27754d04e 100644 --- a/bin/varnishtest/vtc_main.c +++ b/bin/varnishtest/vtc_main.c @@ -508,7 +508,7 @@ i_mode(void) /* * Build $PATH which can find all programs in the build tree */ - VSB_printf(vsb, "PATH="); + VSB_cat(vsb, "PATH="); sep = ""; #define VTC_PROG(l) \ do { \ @@ -690,7 +690,7 @@ main(int argc, char * const *argv) AN(cbvsb); setbuf(stdout, NULL); setbuf(stderr, NULL); - while ((ch = getopt(argc, argv, "b:CD:hij:kLln:p:qt:vW")) != -1) { + while ((ch = getopt(argc, argv, "b:CD:hij:kLln:p:qt:v")) != -1) { switch (ch) { case 'b': if (VNUM_2bytes(optarg, &bufsiz, 0)) { @@ -734,7 +734,7 @@ main(int argc, char * const *argv) ntest = strtoul(optarg, NULL, 0); break; case 'p': - VSB_printf(params_vsb, " -p "); + VSB_cat(params_vsb, " -p "); VSB_quote(params_vsb, optarg, -1, 0); break; case 'q': diff --git a/bin/varnishtest/vtc_proxy.c b/bin/varnishtest/vtc_proxy.c index a72221573..15ef93d76 100644 --- a/bin/varnishtest/vtc_proxy.c +++ b/bin/varnishtest/vtc_proxy.c @@ -100,9 +100,9 @@ vtc_send_proxy(int fd, int version, const struct suckaddr *sac, if (version == 1) { VSB_bcat(vsb, vpx1_sig, sizeof(vpx1_sig)); if (proto == PF_INET6) - VSB_printf(vsb, " TCP6 "); + VSB_cat(vsb, " TCP6 "); else if (proto == PF_INET) - VSB_printf(vsb, " TCP4 "); + VSB_cat(vsb, " TCP4 "); VTCP_name(sac, hc, sizeof(hc), pc, sizeof(pc)); VTCP_name(sas, hs, sizeof(hs), ps, sizeof(ps)); VSB_printf(vsb, "%s %s %s %s\r\n", hc, hs, pc, ps); diff --git a/bin/varnishtest/vtc_varnish.c b/bin/varnishtest/vtc_varnish.c index b0c27bac6..c246bf0e1 100644 --- a/bin/varnishtest/vtc_varnish.c +++ b/bin/varnishtest/vtc_varnish.c @@ -408,7 +408,7 @@ varnish_launch(struct varnish *v) vtc_log(v->vl, 2, "Launch"); vsb = VSB_new_auto(); AN(vsb); - VSB_printf(vsb, "cd ${pwd} &&"); + VSB_cat(vsb, "cd ${pwd} &&"); VSB_printf(vsb, " exec varnishd %s -d -n %s", v->jail, v->workdir); VSB_cat(vsb, VSB_data(params_vsb)); @@ -419,13 +419,13 @@ varnish_launch(struct varnish *v) VSB_cat(vsb, " -p debug=+vmod_so_keep"); VSB_cat(vsb, " -p debug=+vsm_keep"); } - VSB_printf(vsb, " -l 2m"); - VSB_printf(vsb, " -p auto_restart=off"); - VSB_printf(vsb, " -p syslog_cli_traffic=off"); - VSB_printf(vsb, " -p sigsegv_handler=on"); - VSB_printf(vsb, " -p thread_pool_min=10"); - VSB_printf(vsb, " -p debug=+vtc_mode"); - VSB_printf(vsb, " -p vsl_mask=+Debug"); + VSB_cat(vsb, " -l 2m"); + VSB_cat(vsb, " -p auto_restart=off"); + VSB_cat(vsb, " -p syslog_cli_traffic=off"); + VSB_cat(vsb, " -p sigsegv_handler=on"); + VSB_cat(vsb, " -p thread_pool_min=10"); + VSB_cat(vsb, " -p debug=+vtc_mode"); + VSB_cat(vsb, " -p vsl_mask=+Debug"); if (!v->has_a_arg) { VSB_printf(vsb, " -a '%s'", "127.0.0.1:0"); if (v->proto != NULL) From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] ec3ebaf4c varnishtest: Tweak default h2 window parameters Message-ID: <20231018092106.401951028EB@lists.varnish-cache.org> commit ec3ebaf4c73389093fb8b36d0ea0c5feebe9d591 Author: Dridi Boukelmoune Date: Mon Oct 19 19:29:23 2020 +0200 varnishtest: Tweak default h2 window parameters This change increases the initial size and reduces the low watermark. RFC7540 says this: > Flow-controlled frames from the sender and WINDOW_UPDATE frames from > the receiver are completely asynchronous with respect to each other. > This property allows a receiver to aggressively update the window > size kept by the sender to prevent streams from stalling. The default parameters are very much on the low-latency aggressive updates end of the spectrum, which increases asynchronicity at the expense of determinism in test cases. The tweaks made by varnishtest allows basic tests to send a few request bodies before being bothered by window update race conditions. Test cases that cover h2 flow control or anything else related to window updates may reset parameters or pick other specific values. This frees us from a bunch of barriers where the purpose of mitigating this race was rarely even documented. This successfully passed the following test locally: git grep -Fl +http2 -- '*.vtc' | xargs bin/varnishtest/varnishtest -i -n100 -j32 We can hope that h2 test cases will be overall more stable from now on. Refs #3442 diff --git a/bin/varnishtest/tests/r02305.vtc b/bin/varnishtest/tests/r02305.vtc index 7da2d486e..dfd60398a 100644 --- a/bin/varnishtest/tests/r02305.vtc +++ b/bin/varnishtest/tests/r02305.vtc @@ -1,7 +1,6 @@ varnishtest "#2305: h/2 reembark with a request body" barrier b1 cond 2 -barrier b2 sock 2 server s1 { rxreq @@ -16,15 +15,9 @@ varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set debug +waitinglist" varnish v1 -vcl+backend { - import vtc; sub vcl_recv { return (hash); } - sub vcl_deliver { - if (req.http.sync) { - vtc.barrier_sync("${b2_sock}"); - } - } } -start client c1 { @@ -35,11 +28,7 @@ client c1 { } -start stream 3 { barrier b1 sync - txreq -req POST -hdr sync 1 -body "foo" - rxwinup - # barrier b2 is here to make HEADERS vs WINDOW_UPDATE - # less racy - barrier b2 sync + txreq -req POST -body "foo" rxresp expect resp.status == 200 } -run diff --git a/bin/varnishtest/tests/r02679.vtc b/bin/varnishtest/tests/r02679.vtc index c0029782a..d1284e2f5 100644 --- a/bin/varnishtest/tests/r02679.vtc +++ b/bin/varnishtest/tests/r02679.vtc @@ -16,6 +16,7 @@ varnish v1 -vcl+backend { varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set h2_rx_window_low_water 65535" +varnish v1 -cliok "param.reset h2_initial_window_size" client c1 { stream 1 { diff --git a/bin/varnishtest/tests/t02000.vtc b/bin/varnishtest/tests/t02000.vtc index b3cbc1a22..789b5d822 100644 --- a/bin/varnishtest/tests/t02000.vtc +++ b/bin/varnishtest/tests/t02000.vtc @@ -33,6 +33,7 @@ client c1 { } -run varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" client c1 { stream 1 { @@ -67,8 +68,10 @@ varnish v1 -expect MEMPOOL.sess1.live == 0 process p1 -stop # shell {cat ${tmpdir}/vlog} -shell -match {1001 H2TxHdr c \[000006040000000000\]} \ - {cat ${tmpdir}/vlog} +# SETTINGS with default initial window size +shell -match {1001 H2TxHdr c \[000006040000000000\]} { + cat ${tmpdir}/vlog +} # While we're here, test sess.xid over H2 as well diff --git a/bin/varnishtest/tests/t02005.vtc b/bin/varnishtest/tests/t02005.vtc index 2bcd1da24..03c9a85ae 100644 --- a/bin/varnishtest/tests/t02005.vtc +++ b/bin/varnishtest/tests/t02005.vtc @@ -1,7 +1,5 @@ varnishtest "H2 POST" -barrier b1 cond 2 - barrier b2 sock 2 barrier b3 sock 2 @@ -9,7 +7,6 @@ server s1 { rxreq expect req.http.content-length == 7 expect req.http.transfer-encoding == - barrier b1 sync txresp -hdr "Content-Type: text/plain" -body response rxreq @@ -30,7 +27,7 @@ varnish v1 -cliok "param.set debug +syncvsl" logexpect l1 -v v1 -g raw { expect * 1001 ReqAcct "80 7 87 106 8 114" - expect * 1000 ReqAcct "45 8 53 72 22 94" + expect * 1000 ReqAcct "45 8 53 54 20 74" } -start client c1 { @@ -38,14 +35,8 @@ client c1 { txping rxping } -run - stream 0 { - rxwinup - } -start stream 1 { txreq -req POST -hdr content-type text/plain -hdr content-length 7 -body request - - rxwinup - barrier b1 sync # First, HTTP checks rxresp expect resp.http.content-Type == "text/plain" @@ -53,21 +44,18 @@ client c1 { # Then, payload checks expect resp.body == response } -run - stream 0 -wait } -run -client c1 { +client c2 { stream 0 { barrier b2 sync delay 1 barrier b3 sync - rxwinup } -start stream 1 { txreq -url "/a" -req POST -nostrend txdata -datalen 100 rxresp - rxwinup expect resp.status == 503 } -run stream 3 { diff --git a/bin/varnishtest/tests/t02006.vtc b/bin/varnishtest/tests/t02006.vtc index 30e4ac805..9056682d3 100644 --- a/bin/varnishtest/tests/t02006.vtc +++ b/bin/varnishtest/tests/t02006.vtc @@ -1,13 +1,10 @@ varnishtest "H2 POST w/ 100 Continue" -barrier b1 cond 2 - server s1 { rxreq expect req.http.content-length == expect req.http.transfer-encoding == chunked expect req.proto == HTTP/1.1 - barrier b1 sync txresp -hdr "Content-Type: text/plain" -body response } -start @@ -31,8 +28,6 @@ client c1 { txdata \ -data request - rxwinup - barrier b1 sync rxresp expect resp.status == 200 expect resp.http.content-Type == "text/plain" diff --git a/bin/varnishtest/tests/t02007.vtc b/bin/varnishtest/tests/t02007.vtc index b3fd521d5..f0b1f1abd 100644 --- a/bin/varnishtest/tests/t02007.vtc +++ b/bin/varnishtest/tests/t02007.vtc @@ -1,7 +1,5 @@ varnishtest "H2 Huge response headers" -barrier b1 sock 2 - server s1 { rxreq expect req.proto == HTTP/1.1 @@ -25,14 +23,7 @@ varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set debug +h2_nocheck" -varnish v1 -vcl+backend { - import vtc; - sub vcl_deliver { - if (req.url == "/1") { - vtc.barrier_sync("${b1_sock}"); - } - } -} -start +varnish v1 -vcl+backend {} -start client c1 { stream 0 { @@ -61,8 +52,6 @@ client c1 { txdata \ -data request - rxwinup - barrier b1 sync rxresp expect resp.status == 200 expect resp.http.content-Type == "text/plain" diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index 17489d362..e73477311 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -17,6 +17,7 @@ varnish v1 -vcl+backend { varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" client c1 { stream 0 { diff --git a/bin/varnishtest/vtc_varnish.c b/bin/varnishtest/vtc_varnish.c index c246bf0e1..9528820c5 100644 --- a/bin/varnishtest/vtc_varnish.c +++ b/bin/varnishtest/vtc_varnish.c @@ -426,6 +426,8 @@ varnish_launch(struct varnish *v) VSB_cat(vsb, " -p thread_pool_min=10"); VSB_cat(vsb, " -p debug=+vtc_mode"); VSB_cat(vsb, " -p vsl_mask=+Debug"); + VSB_cat(vsb, " -p h2_initial_window_size=1m"); + VSB_cat(vsb, " -p h2_rx_window_low_water=64k"); if (!v->has_a_arg) { VSB_printf(vsb, " -a '%s'", "127.0.0.1:0"); if (v->proto != NULL) From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] d65629372 vtc_varnish: Log h2 frames Message-ID: <20231018092106.5A7761028F4@lists.varnish-cache.org> commit d65629372181c3829020ac8815149a8d2d59f4a9 Author: Dridi Boukelmoune Date: Thu Jun 15 19:45:53 2023 +0200 vtc_varnish: Log h2 frames diff --git a/bin/varnishtest/vtc_varnish.c b/bin/varnishtest/vtc_varnish.c index 9528820c5..034cb2534 100644 --- a/bin/varnishtest/vtc_varnish.c +++ b/bin/varnishtest/vtc_varnish.c @@ -425,7 +425,7 @@ varnish_launch(struct varnish *v) VSB_cat(vsb, " -p sigsegv_handler=on"); VSB_cat(vsb, " -p thread_pool_min=10"); VSB_cat(vsb, " -p debug=+vtc_mode"); - VSB_cat(vsb, " -p vsl_mask=+Debug"); + VSB_cat(vsb, " -p vsl_mask=+Debug,+H2RxHdr,+H2RxBody"); VSB_cat(vsb, " -p h2_initial_window_size=1m"); VSB_cat(vsb, " -p h2_rx_window_low_water=64k"); if (!v->has_a_arg) { From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] 1518c09d0 STV temp buffer API Message-ID: <20231018092106.9128C102905@lists.varnish-cache.org> commit 1518c09d0744de2eb6fdd105e44c381463ab8097 Author: Martin Blix Grydeland Date: Tue Jun 22 11:48:49 2021 +0200 STV temp buffer API This is an API for getting an arbitrary buffer through the stevedores. The stevedore in question may then deploy LRU nuking or other measures to control resource usage. diff --git a/bin/varnishd/cache/cache_varnishd.h b/bin/varnishd/cache/cache_varnishd.h index 0141cf2ff..d6f4c5f01 100644 --- a/bin/varnishd/cache/cache_varnishd.h +++ b/bin/varnishd/cache/cache_varnishd.h @@ -437,6 +437,11 @@ void STV_BanExport(const uint8_t *banlist, unsigned len); int STV_NewObject(struct worker *, struct objcore *, const struct stevedore *, unsigned len); +struct stv_buffer; +struct stv_buffer *STV_AllocBuf(struct worker *wrk, const struct stevedore *stv, + size_t size); +void STV_FreeBuf(struct worker *wrk, struct stv_buffer **pstvbuf); +void *STV_GetBufPtr(struct stv_buffer *stvbuf, size_t *psize); #if WITH_PERSISTENT_STORAGE /* storage_persistent.c */ diff --git a/bin/varnishd/storage/stevedore.c b/bin/varnishd/storage/stevedore.c index c75d6bf65..72949db42 100644 --- a/bin/varnishd/storage/stevedore.c +++ b/bin/varnishd/storage/stevedore.c @@ -95,6 +95,74 @@ STV_NewObject(struct worker *wrk, struct objcore *oc, /*-------------------------------------------------------------------*/ +struct stv_buffer { + unsigned magic; +#define STV_BUFFER_MAGIC 0xf39cb6c2 + const struct stevedore *stv; + size_t size; + uintptr_t priv; +}; + +struct stv_buffer * +STV_AllocBuf(struct worker *wrk, const struct stevedore *stv, size_t size) +{ + struct stv_buffer *stvbuf; + uint8_t *buf; + uintptr_t priv = 0; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); + + if (size == 0) + return (NULL); + if (stv->allocbuf == NULL) + return (NULL); + + buf = stv->allocbuf(wrk, stv, size + PRNDUP(sizeof *stvbuf), &priv); + if (buf == NULL) + return (NULL); + + assert(PAOK(buf)); + stvbuf = (void *)buf; + INIT_OBJ(stvbuf, STV_BUFFER_MAGIC); + stvbuf->stv = stv; + stvbuf->priv = priv; + stvbuf->size = size; + + return (stvbuf); +} + +void +STV_FreeBuf(struct worker *wrk, struct stv_buffer **pstvbuf) +{ + struct stv_buffer *stvbuf; + const struct stevedore *stv; + uintptr_t priv; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + TAKE_OBJ_NOTNULL(stvbuf, pstvbuf, STV_BUFFER_MAGIC); + CHECK_OBJ_NOTNULL(stvbuf->stv, STEVEDORE_MAGIC); + + stv = stvbuf->stv; + priv = stvbuf->priv; + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); + ZERO_OBJ(stvbuf, sizeof *stvbuf); + + AN(stv->freebuf); + stv->freebuf(wrk, stv, priv); +} + +void * +STV_GetBufPtr(struct stv_buffer *stvbuf, size_t *psize) +{ + CHECK_OBJ_NOTNULL(stvbuf, STV_BUFFER_MAGIC); + if (psize) + *psize = stvbuf->size; + return (&stvbuf[1]); +} + +/*-------------------------------------------------------------------*/ + void STV_open(void) { diff --git a/bin/varnishd/storage/storage.h b/bin/varnishd/storage/storage.h index 212142ceb..53208236c 100644 --- a/bin/varnishd/storage/storage.h +++ b/bin/varnishd/storage/storage.h @@ -73,6 +73,10 @@ typedef void storage_banexport_f(const struct stevedore *, const uint8_t *bans, unsigned len); typedef void storage_panic_f(struct vsb *vsb, const struct objcore *oc); +typedef void *storage_allocbuf_f(struct worker *, const struct stevedore *, + size_t size, uintptr_t *ppriv); +typedef void storage_freebuf_f(struct worker *, const struct stevedore *, + uintptr_t priv); typedef struct object *sml_getobj_f(struct worker *, struct objcore *); typedef struct storage *sml_alloc_f(const struct stevedore *, size_t size); @@ -100,6 +104,8 @@ struct stevedore { storage_baninfo_f *baninfo; storage_banexport_f *banexport; storage_panic_f *panic; + storage_allocbuf_f *allocbuf; + storage_freebuf_f *freebuf; /* Only if SML is used */ sml_alloc_f *sml_alloc; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] f07157f7c Simple STV temp buffer implementation Message-ID: <20231018092106.B994E102918@lists.varnish-cache.org> commit f07157f7c359e6a44647ceaaca2978c53a259b66 Author: Martin Blix Grydeland Date: Tue Jun 22 11:48:55 2021 +0200 Simple STV temp buffer implementation Conflicts: bin/varnishd/storage/storage_simple.c diff --git a/bin/varnishd/storage/storage_simple.c b/bin/varnishd/storage/storage_simple.c index 776f5f7ff..457d8f01a 100644 --- a/bin/varnishd/storage/storage_simple.c +++ b/bin/varnishd/storage/storage_simple.c @@ -44,6 +44,10 @@ /*-------------------------------------------------------------------*/ +static struct storage * +objallocwithnuke(struct worker *, const struct stevedore *, size_t size, + int flags); + static struct storage * sml_stv_alloc(const struct stevedore *stv, size_t size, int flags) { @@ -159,6 +163,39 @@ SML_allocobj(struct worker *wrk, const struct stevedore *stv, return (1); } +void * v_matchproto_(storage_allocbuf_t) +SML_AllocBuf(struct worker *wrk, const struct stevedore *stv, size_t size, + uintptr_t *ppriv) +{ + struct storage *st; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); + AN(ppriv); + + if (size > UINT_MAX) + return (NULL); + st = objallocwithnuke(wrk, stv, size, 0); + if (st == NULL) + return (NULL); + assert(st->space >= size); + st->len = size; + *ppriv = (uintptr_t)st; + return (st->ptr); +} + +void v_matchproto_(storage_freebuf_t) +SML_FreeBuf(struct worker *wrk, const struct stevedore *stv, uintptr_t priv) +{ + struct storage *st; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); + + CAST_OBJ_NOTNULL(st, (void *)priv, STORAGE_MAGIC); + sml_stv_free(stv, st); +} + /*--------------------------------------------------------------------- */ diff --git a/bin/varnishd/storage/storage_simple.h b/bin/varnishd/storage/storage_simple.h index 6985cdd8c..48be2f5cc 100644 --- a/bin/varnishd/storage/storage_simple.h +++ b/bin/varnishd/storage/storage_simple.h @@ -66,6 +66,9 @@ extern const struct obj_methods SML_methods; struct object *SML_MkObject(const struct stevedore *, struct objcore *, void *ptr); +void *SML_AllocBuf(struct worker *, const struct stevedore *, size_t, + uintptr_t *); +void SML_FreeBuf(struct worker *, const struct stevedore *, uintptr_t); storage_allocobj_f SML_allocobj; storage_panic_f SML_panic; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:06 +0000 (UTC) Subject: [6.0] f53736b31 Use SML_AllocBuf with -smalloc Message-ID: <20231018092106.EDBD0102935@lists.varnish-cache.org> commit f53736b314f613aeb78f740571f949fe9956044d Author: Martin Blix Grydeland Date: Tue Jun 22 11:48:58 2021 +0200 Use SML_AllocBuf with -smalloc diff --git a/bin/varnishd/storage/storage_malloc.c b/bin/varnishd/storage/storage_malloc.c index b8a168af8..835f230a5 100644 --- a/bin/varnishd/storage/storage_malloc.c +++ b/bin/varnishd/storage/storage_malloc.c @@ -230,4 +230,6 @@ const struct stevedore sma_stevedore = { .methods = &SML_methods, .var_free_space = sma_free_space, .var_used_space = sma_used_space, + .allocbuf = SML_AllocBuf, + .freebuf = SML_FreeBuf, }; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] 5c668420a Use SML_AllocBuf also for -sfile Message-ID: <20231018092107.0F1E9102938@lists.varnish-cache.org> commit 5c668420ad30ea86a42aa2bd464e3b7774902fb0 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:03 2021 +0200 Use SML_AllocBuf also for -sfile diff --git a/bin/varnishd/storage/storage_file.c b/bin/varnishd/storage/storage_file.c index c2cb479ff..73177e14d 100644 --- a/bin/varnishd/storage/storage_file.c +++ b/bin/varnishd/storage/storage_file.c @@ -496,6 +496,8 @@ const struct stevedore smf_stevedore = { .allocobj = SML_allocobj, .panic = SML_panic, .methods = &SML_methods, + .allocbuf = SML_AllocBuf, + .freebuf = SML_FreeBuf, }; #ifdef INCLUDE_TEST_DRIVER From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] a7da260a9 Make h2_del_req take a non-const struct h2_req Message-ID: <20231018092107.3D484102950@lists.varnish-cache.org> commit a7da260a9113a4af0f391797549023c0f7180fd1 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:10 2021 +0200 Make h2_del_req take a non-const struct h2_req diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index bba2b7e7d..2189f5db1 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -240,7 +240,7 @@ void H2_Send(struct worker *, struct h2_req *, h2_frame type, uint8_t flags, struct h2_req * h2_new_req(const struct worker *, struct h2_sess *, unsigned stream, struct req *); int h2_stream_tmo(struct h2_sess *, const struct h2_req *, vtim_real); -void h2_del_req(struct worker *, const struct h2_req *); +void h2_del_req(struct worker *, struct h2_req *); void h2_kill_req(struct worker *, struct h2_sess *, struct h2_req *, h2_error); int h2_rxframe(struct worker *, struct h2_sess *); h2_error h2_set_setting(struct h2_sess *, const uint8_t *); diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 03a8cc5f0..a6b505940 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -165,7 +165,7 @@ h2_new_req(const struct worker *wrk, struct h2_sess *h2, } void -h2_del_req(struct worker *wrk, const struct h2_req *r2) +h2_del_req(struct worker *wrk, struct h2_req *r2) { struct h2_sess *h2; struct sess *sp; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] da36ce3c9 h2: Explode include/tbl/h2_error.h Message-ID: <20231018092107.5D32A10295A@lists.varnish-cache.org> commit da36ce3c9bd08f74d87fc3996c0f43147fa05c70 Author: Dridi Boukelmoune Date: Mon Jan 25 09:37:49 2021 +0100 h2: Explode include/tbl/h2_error.h In the same fashion as include/tbl/params.h for legibility. diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index 02044db6f..c0afd6c2f 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -27,25 +27,108 @@ * * RFC7540 section 11.4 * - * Fields: Upper, value, conn=1|stream=2, description + * Types: conn=1|stream=2 */ /*lint -save -e525 -e539 */ -H2_ERROR(NO_ERROR, 0,3, "Graceful shutdown") -H2_ERROR(PROTOCOL_ERROR, 1,3, "Protocol error detected") -H2_ERROR(INTERNAL_ERROR, 2,3, "Implementation fault") -H2_ERROR(FLOW_CONTROL_ERROR, 3,3, "Flow-control limits exceeded") -H2_ERROR(SETTINGS_TIMEOUT, 4,1, "Settings not acknowledged") -H2_ERROR(STREAM_CLOSED, 5,2, "Frame received for closed stream") -H2_ERROR(FRAME_SIZE_ERROR, 6,3, "Frame size incorrect") -H2_ERROR(REFUSED_STREAM, 7,2, "Stream not processed") -H2_ERROR(CANCEL, 8,2, "Stream cancelled") -H2_ERROR(COMPRESSION_ERROR, 9,1, "Compression state not updated") -H2_ERROR(CONNECT_ERROR, 10,2, "TCP connection error for CONNECT method") -H2_ERROR(ENHANCE_YOUR_CALM, 11,3, "Processing capacity exceeded") -H2_ERROR(INADEQUATE_SECURITY, 12,1, "Negotiated TLS parameters not acceptable") -H2_ERROR(HTTP_1_1_REQUIRED, 13,1, "Use HTTP/1.1 for the request") -#undef H2_ERROR +H2_ERROR( + /* name */ NO_ERROR, + /* val */ 0, + /* types */ 3, + /* descr */ "Graceful shutdown" +) + +H2_ERROR( + /* name */ PROTOCOL_ERROR, + /* val */ 1, + /* types */ 3, + /* descr */ "Protocol error detected" +) + +H2_ERROR( + /* name */ INTERNAL_ERROR, + /* val */ 2, + /* types */ 3, + /* descr */ "Implementation fault" +) + +H2_ERROR( + /* name */ FLOW_CONTROL_ERROR, + /* val */ 3, + /* types */ 3, + /* descr */ "Flow-control limits exceeded" +) + +H2_ERROR( + /* name */ SETTINGS_TIMEOUT, + /* val */ 4, + /* types */ 1, + /* descr */ "Settings not acknowledged" +) + +H2_ERROR( + /* name */ STREAM_CLOSED, + /* val */ 5, + /* types */ 2, + /* descr */ "Frame received for closed stream" +) + +H2_ERROR( + /* name */ FRAME_SIZE_ERROR, + /* val */ 6, + /* types */ 3, + /* descr */ "Frame size incorrect" +) + +H2_ERROR( + /* name */ REFUSED_STREAM, + /* val */ 7, + /* types */ 2, + /* descr */ "Stream not processed" +) +H2_ERROR( + /* name */ CANCEL, + /* val */ 8, + /* types */ 2, + /* descr */ "Stream cancelled" +) + +H2_ERROR( + /* name */ COMPRESSION_ERROR, + /* val */ 9, + /* types */ 1, + /* descr */ "Compression state not updated" +) + +H2_ERROR( + /* name */ CONNECT_ERROR, + /* val */ 10, + /* types */ 2, + /* descr */ "TCP connection error for CONNECT method" +) + +H2_ERROR( + /* name */ ENHANCE_YOUR_CALM, + /* val */ 11, + /* types */ 3, + /* descr */ "Processing capacity exceeded" +) + +H2_ERROR( + /* name */ INADEQUATE_SECURITY, + /* val */ 12, + /* types */ 1, + /* descr */ "Negotiated TLS parameters not acceptable" +) + +H2_ERROR( + /* name */ HTTP_1_1_REQUIRED, + /* val */ 13, + /* types */ 1, + /* descr */ "Use HTTP/1.1 for the request" +) + +#undef H2_ERROR /*lint -restore */ From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] 49c224e76 h2: Add a sess_close reason to h2 connection errors Message-ID: <20231018092107.777A8102965@lists.varnish-cache.org> commit 49c224e76feac6b987a9bc75cb39f91e31abe947 Author: Dridi Boukelmoune Date: Mon Jan 25 12:26:47 2021 +0100 h2: Add a sess_close reason to h2 connection errors And use that for logging purposes when a successfully opened h2 session ends. RX_JUNK is still the default session close reason when existing reasons aren't accurate enough. Fixes #3393 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 2189f5db1..99c7d6c4b 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -42,15 +42,15 @@ struct h2_error_s { uint32_t val; int stream; int connection; + enum sess_close reason; }; typedef const struct h2_error_s *h2_error; -#define H2EC0(U,v,d) -#define H2EC1(U,v,d) extern const struct h2_error_s H2CE_##U[1]; -#define H2EC2(U,v,d) extern const struct h2_error_s H2SE_##U[1]; -#define H2EC3(U,v,d) H2EC1(U,v,d) H2EC2(U,v,d) -#define H2_ERROR(NAME, val, sc, desc) H2EC##sc(NAME, val, desc) +#define H2EC1(U,v,r,d) extern const struct h2_error_s H2CE_##U[1]; +#define H2EC2(U,v,r,d) extern const struct h2_error_s H2SE_##U[1]; +#define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) +#define H2_ERROR(NAME, val, sc, reason, desc) H2EC##sc(NAME, val, reason, desc) #include "tbl/h2_error.h" #undef H2EC1 #undef H2EC2 diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index a6b505940..1ff8f53cf 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -43,10 +43,10 @@ #include "vtcp.h" #include "vtim.h" -#define H2EC1(U,v,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1}}; -#define H2EC2(U,v,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0}}; -#define H2EC3(U,v,d) H2EC1(U,v,d) H2EC2(U,v,d) -#define H2_ERROR(NAME, val, sc, desc) H2EC##sc(NAME, val, desc) +#define H2EC1(U,v,r,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1,r}}; +#define H2EC2(U,v,r,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0,r}}; +#define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) +#define H2_ERROR(NAME, val, sc, reason, desc) H2EC##sc(NAME, val, reason, desc) #include "tbl/h2_error.h" #undef H2EC1 #undef H2EC2 @@ -57,7 +57,8 @@ static const struct h2_error_s H2NN_ERROR[1] = {{ "Unknown error number", 0xffffffff, 1, - 1 + 1, + SC_RX_JUNK }}; enum h2frame { @@ -84,10 +85,10 @@ h2_framename(enum h2frame h2f) */ static const h2_error stream_errors[] = { -#define H2EC1(U,v,d) -#define H2EC2(U,v,d) [v] = H2SE_##U, -#define H2EC3(U,v,d) H2EC1(U,v,d) H2EC2(U,v,d) -#define H2_ERROR(NAME, val, sc, desc) H2EC##sc(NAME, val, desc) +#define H2EC1(U,v,r,d) +#define H2EC2(U,v,r,d) [v] = H2SE_##U, +#define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) +#define H2_ERROR(NAME, val, sc, reason, desc) H2EC##sc(NAME, val, reason, desc) #include "tbl/h2_error.h" #undef H2EC1 #undef H2EC2 @@ -109,10 +110,10 @@ h2_streamerror(uint32_t u) */ static const h2_error conn_errors[] = { -#define H2EC1(U,v,d) [v] = H2CE_##U, -#define H2EC2(U,v,d) -#define H2EC3(U,v,d) H2EC1(U,v,d) H2EC2(U,v,d) -#define H2_ERROR(NAME, val, sc, desc) H2EC##sc(NAME, val, desc) +#define H2EC1(U,v,r,d) [v] = H2CE_##U, +#define H2EC2(U,v,r,d) +#define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) +#define H2_ERROR(NAME, val, sc, reason, desc) H2EC##sc(NAME, val, reason, desc) #include "tbl/h2_error.h" #undef H2EC1 #undef H2EC2 diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index de1083592..9f803d1b4 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -144,6 +144,7 @@ h2_del_sess(struct worker *wrk, struct h2_sess *h2, enum sess_close reason) CHECK_OBJ_NOTNULL(h2, H2_SESS_MAGIC); AZ(h2->refcnt); assert(VTAILQ_EMPTY(&h2->streams)); + AN(reason); VHT_Fini(h2->dectbl); AZ(pthread_cond_destroy(h2->winupd_cond)); @@ -433,8 +434,7 @@ h2_new_session(struct worker *wrk, void *arg) h2->cond = NULL; assert(h2->refcnt == 1); h2_del_req(wrk, h2->req0); - /* TODO: proper sess close reason */ - h2_del_sess(wrk, h2, SC_RX_JUNK); + h2_del_sess(wrk, h2, h2->error->reason); } struct transport H2_transport = { diff --git a/bin/varnishtest/vtc_http2.c b/bin/varnishtest/vtc_http2.c index ed72ea37a..67ba24bae 100644 --- a/bin/varnishtest/vtc_http2.c +++ b/bin/varnishtest/vtc_http2.c @@ -51,7 +51,7 @@ #define BUF_SIZE (1024*2048) static const char *const h2_errs[] = { -#define H2_ERROR(n,v,sc,t) [v] = #n, +#define H2_ERROR(n,v,sc,r,t) [v] = #n, #include NULL }; @@ -1204,7 +1204,7 @@ cmd_var_resolve(const struct stream *s, const char *spec, char *buf) else return (NULL); } -#define H2_ERROR(U,v,sc,t) \ +#define H2_ERROR(U,v,sc,r,t) \ if (!strcmp(spec, #U)) { return (#v); } #include "tbl/h2_error.h" return (spec); diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index c0afd6c2f..7481b9836 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -28,6 +28,7 @@ * RFC7540 section 11.4 * * Types: conn=1|stream=2 + * Reason: enum sess_close */ /*lint -save -e525 -e539 */ @@ -36,6 +37,7 @@ H2_ERROR( /* name */ NO_ERROR, /* val */ 0, /* types */ 3, + /* reason */ SC_REM_CLOSE, /* descr */ "Graceful shutdown" ) @@ -43,6 +45,7 @@ H2_ERROR( /* name */ PROTOCOL_ERROR, /* val */ 1, /* types */ 3, + /* reason */ SC_RX_JUNK, /* descr */ "Protocol error detected" ) @@ -50,6 +53,7 @@ H2_ERROR( /* name */ INTERNAL_ERROR, /* val */ 2, /* types */ 3, + /* reason */ SC_VCL_FAILURE, /* descr */ "Implementation fault" ) @@ -57,6 +61,7 @@ H2_ERROR( /* name */ FLOW_CONTROL_ERROR, /* val */ 3, /* types */ 3, + /* reason */ SC_OVERLOAD, /* descr */ "Flow-control limits exceeded" ) @@ -64,6 +69,7 @@ H2_ERROR( /* name */ SETTINGS_TIMEOUT, /* val */ 4, /* types */ 1, + /* reason */ SC_RX_TIMEOUT, /* descr */ "Settings not acknowledged" ) @@ -71,6 +77,7 @@ H2_ERROR( /* name */ STREAM_CLOSED, /* val */ 5, /* types */ 2, + /* reason */ SC_NULL, /* descr */ "Frame received for closed stream" ) @@ -78,6 +85,7 @@ H2_ERROR( /* name */ FRAME_SIZE_ERROR, /* val */ 6, /* types */ 3, + /* reason */ SC_RX_JUNK, /* descr */ "Frame size incorrect" ) @@ -85,6 +93,7 @@ H2_ERROR( /* name */ REFUSED_STREAM, /* val */ 7, /* types */ 2, + /* reason */ SC_NULL, /* descr */ "Stream not processed" ) @@ -92,6 +101,7 @@ H2_ERROR( /* name */ CANCEL, /* val */ 8, /* types */ 2, + /* reason */ SC_NULL, /* descr */ "Stream cancelled" ) @@ -99,6 +109,7 @@ H2_ERROR( /* name */ COMPRESSION_ERROR, /* val */ 9, /* types */ 1, + /* reason */ SC_RX_JUNK, /* descr */ "Compression state not updated" ) @@ -106,6 +117,7 @@ H2_ERROR( /* name */ CONNECT_ERROR, /* val */ 10, /* types */ 2, + /* reason */ SC_NULL, /* descr */ "TCP connection error for CONNECT method" ) @@ -113,6 +125,7 @@ H2_ERROR( /* name */ ENHANCE_YOUR_CALM, /* val */ 11, /* types */ 3, + /* reason */ SC_OVERLOAD, /* descr */ "Processing capacity exceeded" ) @@ -120,6 +133,7 @@ H2_ERROR( /* name */ INADEQUATE_SECURITY, /* val */ 12, /* types */ 1, + /* reason */ SC_RX_JUNK, /* descr */ "Negotiated TLS parameters not acceptable" ) @@ -127,6 +141,7 @@ H2_ERROR( /* name */ HTTP_1_1_REQUIRED, /* val */ 13, /* types */ 1, + /* reason */ SC_REQ_HTTP20, /* descr */ "Use HTTP/1.1 for the request" ) From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] a1049d93a Set up 'wrk->vsl' pointer for H/2 session thread Message-ID: <20231018092107.91D73102976@lists.varnish-cache.org> commit a1049d93a9db8585c36a30e61442d2bc38f3c43e Author: Martin Blix Grydeland Date: Wed Aug 11 17:13:59 2021 +0200 Set up 'wrk->vsl' pointer for H/2 session thread The H/2 session thread does have a VSL buffer already set up, but the 'wrk->vsl' pointer was not set. This caused issue for e.g. LRU_NukeOne() as it wants to log. Set the buffer for the duration that the worker is dedicated as an H/2 session thread. diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 9f803d1b4..8665761c3 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -361,10 +361,14 @@ h2_new_session(struct worker *wrk, void *arg) AZ(h2->htc->priv); h2->htc->priv = h2; + AZ(wrk->vsl); + wrk->vsl = h2->vsl; + if (req->err_code == H2_OU_MARKER && !h2_ou_session(wrk, h2, req)) { assert(h2->refcnt == 1); h2_del_req(wrk, h2->req0); h2_del_sess(wrk, h2, SC_RX_JUNK); + wrk->vsl = NULL; return; } assert(HTC_S_COMPLETE == H2_prism_complete(h2->htc)); @@ -435,6 +439,7 @@ h2_new_session(struct worker *wrk, void *arg) assert(h2->refcnt == 1); h2_del_req(wrk, h2->req0); h2_del_sess(wrk, h2, h2->error->reason); + wrk->vsl = NULL; } struct transport H2_transport = { From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] d2e5058e1 Redo H/2 tx data handling Message-ID: <20231018092107.AAC8210297F@lists.varnish-cache.org> commit d2e5058e1cfb9f932d9881f02beb4d3ee6865cb9 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:24 2021 +0200 Redo H/2 tx data handling This implements stream data handling using a buffer between the H/2 session thread and each stream thread. This is needed to avoid head of line blocking on the session socket when a data frame is received for a stream thread that is not yet ready to receive it. The buffer used will have to be as large as the send window the peer expects at the time the stream is opened. This will typically be 65535 unless the h2_initial_window_size parameter has been changed. Stream window updates will then be issued only once data is removed from the buffer by the request body being consumed from the request handling thread, limited in size to what space is then available in the buffer. Conflicts: bin/varnishd/http2/cache_http2_proto.c diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 99c7d6c4b..533e00fa8 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -113,6 +113,16 @@ enum h2_stream_e { #define H2_FRAME_FLAGS(l,u,v) extern const uint8_t H2FF_##u; #include "tbl/h2_frames.h" +struct h2_rxbuf { + unsigned magic; +#define H2_RXBUF_MAGIC 0x73f9fb27 + unsigned size; + uint64_t tail; + uint64_t head; + struct stv_buffer *stvbuf; + uint8_t data[]; +}; + struct h2_req { unsigned magic; #define H2_REQ_MAGIC 0x03411584 @@ -131,7 +141,7 @@ struct h2_req { /* Where to wake this stream up */ struct worker *wrk; - ssize_t reqbody_bytes; + struct h2_rxbuf *rxbuf; VTAILQ_ENTRY(h2_req) tx_list; h2_error error; @@ -146,7 +156,6 @@ struct h2_sess { #define H2_SESS_MAGIC 0xa16f7e4b pthread_t rxthr; - struct h2_req *mailcall; pthread_cond_t *cond; pthread_cond_t winupd_cond[1]; diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 1ff8f53cf..bdd5eeec6 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -38,6 +38,7 @@ #include "cache/cache_filter.h" #include "http2/cache_http2.h" #include "cache/cache_objhead.h" +#include "storage/storage.h" #include "vend.h" #include "vtcp.h" @@ -170,6 +171,7 @@ h2_del_req(struct worker *wrk, struct h2_req *r2) { struct h2_sess *h2; struct sess *sp; + struct stv_buffer *stvbuf; CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); AZ(r2->scheduled); @@ -184,6 +186,15 @@ h2_del_req(struct worker *wrk, struct h2_req *r2) VTAILQ_REMOVE(&h2->streams, r2, list); Lck_Unlock(&sp->mtx); AZ(r2->req->ws->r); + + CHECK_OBJ_ORNULL(r2->rxbuf, H2_RXBUF_MAGIC); + if (r2->rxbuf) { + stvbuf = r2->rxbuf->stvbuf; + r2->rxbuf = NULL; + STV_FreeBuf(wrk, &stvbuf); + AZ(stvbuf); + } + Req_Cleanup(sp, wrk, r2->req); Req_Release(r2->req); } @@ -533,10 +544,6 @@ h2_do_req(struct worker *wrk, void *priv) r2->scheduled = 0; r2->state = H2_S_CLOSED; r2->h2sess->do_sweep = 1; - if (h2->mailcall == r2) { - h2->mailcall = NULL; - AZ(pthread_cond_signal(h2->cond)); - } Lck_Unlock(&h2->sess->mtx); } THR_SetRequest(NULL); @@ -585,8 +592,16 @@ h2_end_headers(struct worker *wrk, struct h2_sess *h2, if (req->req_body_status == REQ_BODY_INIT) { if (cl == -1) req->req_body_status = REQ_BODY_WITHOUT_LEN; - else + else { + /* Note: If cl==0 here, we still need to have + * req_body_status==BS_LENGTH, so that there will + * be a wait for the stream to reach H2_S_CLOS_REM + * while dealing with the request body. */ req->req_body_status = REQ_BODY_WITH_LEN; + } + /* Set req->htc->content_length because this is used as + * the hint in vrb_pull() for how large the storage + * buffers need to be */ req->htc->content_length = cl; } else { /* A HEADER frame contained END_STREAM */ @@ -753,78 +768,181 @@ h2_rx_continuation(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) static h2_error v_matchproto_(h2_rxframe_f) h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) { - int w1 = 0, w2 = 0; char buf[4]; - unsigned wi; - ssize_t cl; + uint64_t l, l2, head; + const uint8_t *src; + + /* XXX: Shouldn't error handling, setting of r2->error and + * r2->cond signalling be handled more generally at the end of + * procframe()??? */ CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); ASSERT_RXTHR(h2); CHECK_OBJ_ORNULL(r2, H2_REQ_MAGIC); - if (r2 == NULL || !r2->scheduled) + if (r2 == NULL) return (0); + if (r2->state >= H2_S_CLOS_REM) { r2->error = H2SE_STREAM_CLOSED; return (H2SE_STREAM_CLOSED); // rfc7540,l,1766,1769 } + Lck_Lock(&h2->sess->mtx); - while (h2->mailcall != NULL && h2->error == 0 && r2->error == 0) - AZ(Lck_CondWait(h2->cond, &h2->sess->mtx, 0)); + CHECK_OBJ_ORNULL(r2->rxbuf, H2_RXBUF_MAGIC); + if (h2->error || r2->error) { + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); Lck_Unlock(&h2->sess->mtx); return (h2->error ? h2->error : r2->error); } - r2->reqbody_bytes += h2->rxf_len; - if (h2->rxf_flags & H2FF_DATA_END_STREAM) - r2->state = H2_S_CLOS_REM; - cl = r2->req->htc->content_length; - if (cl >= 0 && (r2->reqbody_bytes > cl || - (r2->state >= H2_S_CLOS_REM && r2->reqbody_bytes != cl))) { - VSLb(h2->vsl, SLT_Debug, - "H2: stream %u: Received data and Content-Length" - " mismatch", h2->rxf_stream); - r2->error = H2SE_PROTOCOL_ERROR; // rfc7540,l,3150,3163 + /* Check against the Content-Length header if given */ + if (r2->req->htc->content_length >= 0) { + if (r2->rxbuf) + l = r2->rxbuf->head; + else + l = 0; + l += h2->rxf_len; + if (l > r2->req->htc->content_length || + ((h2->rxf_flags & H2FF_DATA_END_STREAM) && + l != r2->req->htc->content_length)) { + VSLb(h2->vsl, SLT_Debug, + "H2: stream %u: Received data and Content-Length" + " mismatch", h2->rxf_stream); + r2->error = H2SE_PROTOCOL_ERROR; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (H2SE_PROTOCOL_ERROR); + } + } + + /* Handle zero size frame before starting to allocate buffers */ + if (h2->rxf_len == 0) { + if (h2->rxf_flags & H2FF_DATA_END_STREAM) + r2->state = H2_S_CLOS_REM; if (r2->cond) AZ(pthread_cond_signal(r2->cond)); Lck_Unlock(&h2->sess->mtx); - return (H2SE_PROTOCOL_ERROR); + return (0); } - AZ(h2->mailcall); - h2->mailcall = r2; + /* Check and charge connection window */ + if (h2->rxf_len > h2->req0->r_window) { + VSLb(h2->vsl, SLT_Debug, + "H2: stream %u: Exceeded connection receive window", + h2->rxf_stream); + r2->error = H2CE_FLOW_CONTROL_ERROR; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_FLOW_CONTROL_ERROR); + } h2->req0->r_window -= h2->rxf_len; - r2->r_window -= h2->rxf_len; - // req_bodybytes accounted in CNT code. - if (r2->cond) - AZ(pthread_cond_signal(r2->cond)); - while (h2->mailcall != NULL && h2->error == 0 && r2->error == 0) - AZ(Lck_CondWait(h2->cond, &h2->sess->mtx, 0)); - wi = cache_param->h2_rx_window_increment; if (h2->req0->r_window < cache_param->h2_rx_window_low_water) { - h2->req0->r_window += wi; - w1 = 1; + h2->req0->r_window += cache_param->h2_rx_window_increment; + vbe32enc(buf, cache_param->h2_rx_window_increment); + Lck_Unlock(&h2->sess->mtx); + H2_Send_Get(wrk, h2, h2->req0); + H2_Send_Frame(wrk, h2, H2_F_WINDOW_UPDATE, 0, 4, 0, buf); + H2_Send_Rel(h2, h2->req0); + Lck_Lock(&h2->sess->mtx); } - if (r2->r_window < cache_param->h2_rx_window_low_water) { - r2->r_window += wi; - w2 = 1; + + /* Check stream window */ + if (h2->rxf_len > r2->r_window) { + VSLb(h2->vsl, SLT_Debug, + "H2: stream %u: Exceeded stream receive window", + h2->rxf_stream); + r2->error = H2SE_FLOW_CONTROL_ERROR; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (H2SE_FLOW_CONTROL_ERROR); } + /* Make the buffer on demand */ + if (r2->rxbuf == NULL) { + unsigned bufsize; + size_t bstest; + struct stv_buffer *stvbuf; + struct h2_rxbuf *rxbuf; - Lck_Unlock(&h2->sess->mtx); + Lck_Unlock(&h2->sess->mtx); - if (w1 || w2) { - vbe32enc(buf, wi); - H2_Send_Get(wrk, h2, h2->req0); - if (w1) - H2_Send_Frame(wrk, h2, H2_F_WINDOW_UPDATE, 0, - 4, 0, buf); - if (w2) - H2_Send_Frame(wrk, h2, H2_F_WINDOW_UPDATE, 0, - 4, r2->stream, buf); - H2_Send_Rel(h2, h2->req0); + bufsize = r2->r_window; + /* This is the first data frame, so r_window will be the + * initial window size. */ + assert(bufsize > 0); + if ((h2->rxf_flags & H2FF_DATA_END_STREAM) && + bufsize > h2->rxf_len) + /* Cap the buffer size when we know this is the + * single data frame. */ + bufsize = h2->rxf_len; + stvbuf = STV_AllocBuf(wrk, stv_transient, + bufsize + sizeof *rxbuf); + if (stvbuf == NULL) { + VSLb(h2->vsl, SLT_Debug, + "H2: stream %u: Failed to allocate request body" + " buffer", + h2->rxf_stream); + Lck_Lock(&h2->sess->mtx); + r2->error = H2SE_INTERNAL_ERROR; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (H2SE_INTERNAL_ERROR); + } + rxbuf = STV_GetBufPtr(stvbuf, &bstest); + AN(rxbuf); + assert(bstest >= bufsize + sizeof *rxbuf); + assert(PAOK(rxbuf)); + INIT_OBJ(rxbuf, H2_RXBUF_MAGIC); + rxbuf->size = bufsize; + rxbuf->stvbuf = stvbuf; + + r2->rxbuf = rxbuf; + + Lck_Lock(&h2->sess->mtx); } + + CHECK_OBJ_NOTNULL(r2->rxbuf, H2_RXBUF_MAGIC); + assert(r2->rxbuf->tail <= r2->rxbuf->head); + l = r2->rxbuf->head - r2->rxbuf->tail; + assert(l <= r2->rxbuf->size); + l = r2->rxbuf->size - l; + assert(h2->rxf_len <= l); /* Stream window handling ensures + * this */ + + Lck_Unlock(&h2->sess->mtx); + + src = h2->rxf_data; + l = h2->rxf_len; + head = r2->rxbuf->head; + do { + l2 = l; + if ((head % r2->rxbuf->size) + l2 > r2->rxbuf->size) + l2 = r2->rxbuf->size - (head % r2->rxbuf->size); + assert(l2 > 0); + memcpy(&r2->rxbuf->data[head % r2->rxbuf->size], src, l2); + src += l2; + head += l2; + l -= l2; + } while (l > 0); + + Lck_Lock(&h2->sess->mtx); + /* Charge stream window */ + r2->r_window -= h2->rxf_len; + r2->rxbuf->head += h2->rxf_len; + assert(r2->rxbuf->tail <= r2->rxbuf->head); + if (h2->rxf_flags & H2FF_DATA_END_STREAM) + r2->state = H2_S_CLOS_REM; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (0); } @@ -833,8 +951,10 @@ h2_vfp_body(struct vfp_ctx *vc, struct vfp_entry *vfe, void *ptr, ssize_t *lp) { struct h2_req *r2; struct h2_sess *h2; - unsigned l; enum vfp_status retval; + uint64_t l, l2, tail; + uint8_t *dst; + char buf[4]; CHECK_OBJ_NOTNULL(vc, VFP_CTX_MAGIC); CHECK_OBJ_NOTNULL(vfe, VFP_ENTRY_MAGIC); @@ -843,40 +963,87 @@ h2_vfp_body(struct vfp_ctx *vc, struct vfp_entry *vfe, void *ptr, ssize_t *lp) AN(ptr); AN(lp); - l = *lp; - *lp = 0; + assert(*lp >= 0); Lck_Lock(&h2->sess->mtx); + r2->cond = &vc->wrk->cond; - while (h2->mailcall != r2 && h2->error == 0 && r2->error == 0) - AZ(Lck_CondWait(r2->cond, &h2->sess->mtx, 0)); - r2->cond = NULL; - if (h2->error || r2->error) { - retval = VFP_ERROR; - } else { - assert(h2->mailcall == r2); - if (l > h2->rxf_len) - l = h2->rxf_len; - if (l > 0) { - memcpy(ptr, h2->rxf_data, l); - h2->rxf_data += l; - h2->rxf_len -= l; - } - *lp = l; - if (h2->rxf_len > 0) { - /* We ran out of storage: Have VFP call us - * again with a fresh buffer */ - Lck_Unlock(&h2->sess->mtx); - return (VFP_OK); - } - if (h2->rxf_len == 0 && r2->state >= H2_S_CLOS_REM) + while (1) { + CHECK_OBJ_ORNULL(r2->rxbuf, H2_RXBUF_MAGIC); + if (r2->rxbuf) { + assert(r2->rxbuf->tail <= r2->rxbuf->head); + l = r2->rxbuf->head - r2->rxbuf->tail; + } else + l = 0; + + if (h2->error || r2->error) + retval = VFP_ERROR; + else if (r2->state >= H2_S_CLOS_REM && l <= *lp) retval = VFP_END; - else + else { + if (l > *lp) + l = *lp; retval = VFP_OK; - h2->mailcall = NULL; - AZ(pthread_cond_signal(h2->cond)); + } + + if (retval != VFP_OK || l > 0) + break; + + /* XXX: Timeout */ + AZ(Lck_CondWait(r2->cond, &h2->sess->mtx, 0)); } + r2->cond = NULL; + + Lck_Unlock(&h2->sess->mtx); + + if (l == 0 || retval == VFP_ERROR) { + *lp = 0; + return (retval); + } + + *lp = l; + dst = ptr; + tail = r2->rxbuf->tail; + do { + l2 = l; + if ((tail % r2->rxbuf->size) + l2 > r2->rxbuf->size) + l2 = r2->rxbuf->size - (tail % r2->rxbuf->size); + assert(l2 > 0); + memcpy(dst, &r2->rxbuf->data[tail % r2->rxbuf->size], l2); + dst += l2; + tail += l2; + l -= l2; + } while (l > 0); + + Lck_Lock(&h2->sess->mtx); + + CHECK_OBJ_NOTNULL(r2->rxbuf, H2_RXBUF_MAGIC); + r2->rxbuf->tail = tail; + assert(r2->rxbuf->tail <= r2->rxbuf->head); + + if (r2->r_window < cache_param->h2_rx_window_low_water && + r2->state < H2_S_CLOS_REM) { + /* l is free buffer space */ + /* l2 is calculated window increment */ + l = r2->rxbuf->size - (r2->rxbuf->head - r2->rxbuf->tail); + assert(r2->r_window <= l); + l2 = cache_param->h2_rx_window_increment; + if (r2->r_window + l2 > l) + l2 = l - r2->r_window; + r2->r_window += l2; + } else + l2 = 0; + Lck_Unlock(&h2->sess->mtx); + + if (l2 > 0) { + vbe32enc(buf, l2); + H2_Send_Get(vc->wrk, h2, r2); + H2_Send_Frame(vc->wrk, h2, H2_F_WINDOW_UPDATE, 0, 4, + r2->stream, buf); + H2_Send_Rel(h2, r2); + } + return (retval); } @@ -885,6 +1052,7 @@ h2_vfp_body_fini(struct vfp_ctx *vc, struct vfp_entry *vfe) { struct h2_req *r2; struct h2_sess *h2; + struct stv_buffer *stvbuf = NULL; CHECK_OBJ_NOTNULL(vc, VFP_CTX_MAGIC); CHECK_OBJ_NOTNULL(vfe, VFP_ENTRY_MAGIC); @@ -900,11 +1068,21 @@ h2_vfp_body_fini(struct vfp_ctx *vc, struct vfp_entry *vfe) H2_Send_Rel(h2, r2); Lck_Lock(&h2->sess->mtx); r2->error = H2SE_REFUSED_STREAM; - if (h2->mailcall == r2) { - h2->mailcall = NULL; - AZ(pthread_cond_signal(h2->cond)); + Lck_Unlock(&h2->sess->mtx); + } + + if (r2->state >= H2_S_CLOS_REM && r2->rxbuf != NULL) { + Lck_Lock(&h2->sess->mtx); + CHECK_OBJ_ORNULL(r2->rxbuf, H2_RXBUF_MAGIC); + if (r2->rxbuf != NULL) { + stvbuf = r2->rxbuf->stvbuf; + r2->rxbuf = NULL; } Lck_Unlock(&h2->sess->mtx); + if (stvbuf != NULL) { + STV_FreeBuf(vc->wrk, &stvbuf); + AZ(stvbuf); + } } } From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] 634197921 Make f00007.vtc stable Message-ID: <20231018092107.C3CCC102992@lists.varnish-cache.org> commit 634197921927bab4641790214fa531ce98773d2b Author: Martin Blix Grydeland Date: Tue Jun 22 11:50:19 2021 +0200 Make f00007.vtc stable diff --git a/bin/varnishtest/tests/f00007.vtc b/bin/varnishtest/tests/f00007.vtc index 1cf45aad1..e982548a0 100644 --- a/bin/varnishtest/tests/f00007.vtc +++ b/bin/varnishtest/tests/f00007.vtc @@ -62,8 +62,8 @@ client c3 { stream 1 { txreq -req POST -url /3 -hdr "content-length" "1" -nostrend txdata -data "A" -nostrend + delay 0.5 txdata -data "GET /FAIL HTTP/1.1\r\n\r\n" - rxwinup rxrst expect rst.err == PROTOCOL_ERROR } -run @@ -74,8 +74,6 @@ client c4 { txreq -req POST -url /4 -hdr "content-length" "1" -nostrend txdata -data "A" -nostrend txdata - rxwinup - rxwinup rxresp expect resp.status == 200 } -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] ba32ab35b Use `timeout_idle` as a timeout for request body Message-ID: <20231018092107.DB8A510299D@lists.varnish-cache.org> commit ba32ab35b9e4eea78c2bdeefd95bc5d5e7cf8084 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:28 2021 +0200 Use `timeout_idle` as a timeout for request body H2 streams waiting for request body data will timeout after timeout_idle seconds if no new data on the stream is being received. This will ensure that individual H2 streams can be reaped if there is no data received from the peer. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index bdd5eeec6..6bb7a9ad6 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -31,6 +31,7 @@ #include "cache/cache_varnishd.h" +#include #include #include @@ -955,6 +956,7 @@ h2_vfp_body(struct vfp_ctx *vc, struct vfp_entry *vfe, void *ptr, ssize_t *lp) uint64_t l, l2, tail; uint8_t *dst; char buf[4]; + int i; CHECK_OBJ_NOTNULL(vc, VFP_CTX_MAGIC); CHECK_OBJ_NOTNULL(vfe, VFP_ENTRY_MAGIC); @@ -989,8 +991,12 @@ h2_vfp_body(struct vfp_ctx *vc, struct vfp_entry *vfe, void *ptr, ssize_t *lp) if (retval != VFP_OK || l > 0) break; - /* XXX: Timeout */ - AZ(Lck_CondWait(r2->cond, &h2->sess->mtx, 0)); + i = Lck_CondWait(r2->cond, &h2->sess->mtx, + VTIM_real() + SESS_TMO(h2->sess, timeout_idle)); + if (i == ETIMEDOUT) { + retval = VFP_ERROR; + break; + } } r2->cond = NULL; From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:07 +0000 (UTC) Subject: [6.0] 3c946ae41 Adjust the minimum value of h2_initial_window_size Message-ID: <20231018092108.020071029A6@lists.varnish-cache.org> commit 3c946ae41555655fc60c3e69bed573fae3775af6 Author: Martin Blix Grydeland Date: Tue Apr 27 14:58:58 2021 +0200 Adjust the minimum value of h2_initial_window_size We have a strict min at the protocol default here. This is because we don't have the 'use settings only after peer ack' in place yet. If the value is lower than the protocol default, the very first stream could get a flow control error. diff --git a/include/tbl/params.h b/include/tbl/params.h index 053666de4..7a9cf2897 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1832,10 +1832,14 @@ PARAM( /* func */ NULL ) +/* We have a strict min at the protocol default here. This is because we + * don't have the 'use settings only after peer ack' in place yet. If the + * value is lower than the protocol default, the very first stream could + * get a flow control error. */ PARAM( /* name */ h2_initial_window_size, /* typ */ bytes_u, - /* min */ "0", + /* min */ "65535b", /* max */ "2147483647b", /* default */ "65535b", /* units */ "bytes", From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] 071d8e9d0 Make H/2 varnishtest ignore window updates while in rxreq/rxresp Message-ID: <20231018092108.1D1171029B8@lists.varnish-cache.org> commit 071d8e9d098ac77cd665a3001f7c8251e25c1149 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:35 2021 +0200 Make H/2 varnishtest ignore window updates while in rxreq/rxresp This makes it easier to not have to know exactly when and how many window updates to expect in a test case. diff --git a/bin/varnishtest/vtc_http2.c b/bin/varnishtest/vtc_http2.c index 67ba24bae..b72e53228 100644 --- a/bin/varnishtest/vtc_http2.c +++ b/bin/varnishtest/vtc_http2.c @@ -2243,9 +2243,11 @@ cmd_rxmsg(CMD_ARGS) else ONLY_H2_CLIENT(s->hp, av); - f = rxstuff(s); - if (!f) - return; + do { + f = rxstuff(s); + if (!f) + return; + } while (f->type == TYPE_WINDOW_UPDATE); rcv++; CHKFRAME(f->type, TYPE_HEADERS, rcv, *av); From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] 2c5845274 Stabilise test cases Message-ID: <20231018092108.385B11029C3@lists.varnish-cache.org> commit 2c58452748acdc8c0126428a999ebad207f05d7f Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:39 2021 +0200 Stabilise test cases With the new request body data handling, Varnish changes behaviour significantly wrt to stream window updates sent to the client. Window updates will only be sent once the data is consumed by the client through the request body VFP handling. Test cases that rely on receiving a window update to sync the H/2 stream needs to be adopted. diff --git a/bin/varnishtest/tests/r02679.vtc b/bin/varnishtest/tests/r02679.vtc index d1284e2f5..590dfb264 100644 --- a/bin/varnishtest/tests/r02679.vtc +++ b/bin/varnishtest/tests/r02679.vtc @@ -22,7 +22,6 @@ client c1 { stream 1 { txreq -req POST -hdr "content-length" "31469" -nostrend txdata -datalen 1550 -nostrend - rxwinup txdata -datalen 16000 -nostrend txdata -datalen 13919 rxresp diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index e73477311..f47eed657 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -2,7 +2,13 @@ varnishtest "Exercise h/2 sender flow control code" barrier b1 sock 3 -cyclic -server s1 -repeat 2 { +server s1 { + rxreq + txresp -bodylen 66300 +} -start + +server s2 { + non_fatal rxreq txresp -bodylen 66300 } -start @@ -10,6 +16,12 @@ server s1 -repeat 2 { varnish v1 -vcl+backend { import vtc; + sub vcl_backend_fetch { + if (bereq.method == "POST") { + set bereq.backend = s2; + } + } + sub vcl_deliver { vtc.barrier_sync("${b1_sock}"); } @@ -47,7 +59,7 @@ client c1 { stream 0 -wait } -run -client c1 { +client c2 { stream 0 { barrier b1 sync } -start @@ -63,7 +75,7 @@ client c1 { stream 0 -wait } -run -client c1 { +client c3 { stream 0 { barrier b1 sync barrier b1 sync @@ -79,7 +91,6 @@ client c1 { stream 1 { txreq -req "POST" -nostrend txdata -data "ok" - rxwinup txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] 91d0de281 Add H/2 stream data head of line blocking test case Message-ID: <20231018092108.532061029D5@lists.varnish-cache.org> commit 91d0de281d7168dce7987c45142e093ae08cef05 Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:43 2021 +0200 Add H/2 stream data head of line blocking test case This is the test case that fails if these changes aren't in tree. Note the commented out rxwinup commands that are necessary for the proper fail mode when run without the varnishtest window update changes. diff --git a/bin/varnishtest/tests/t02017.vtc b/bin/varnishtest/tests/t02017.vtc new file mode 100644 index 000000000..5090e6262 --- /dev/null +++ b/bin/varnishtest/tests/t02017.vtc @@ -0,0 +1,46 @@ +varnishtest "H/2 stream data head of line blocking" + +barrier b1 cond 2 +barrier b2 cond 2 +barrier b3 cond 2 +barrier b4 cond 2 + +server s1 { + rxreq + barrier b4 sync + txresp +} -start + +varnish v1 -vcl+backend { + sub vcl_recv { + if (req.url == "/2") { + return (synth(700)); + } + } +} -start + +varnish v1 -cliok "param.set feature +http2" + +client c1 { + stream 1 { + txreq -req GET -url /1 -hdr "content-length" "1" -nostrend + barrier b1 sync + barrier b2 sync + txdata -data 1 +# rxwinup + barrier b3 sync + rxresp + expect resp.status == 200 + } -start + stream 3 { + barrier b1 sync + txreq -req GET -url /2 -hdr "content-length" "1" -nostrend + barrier b2 sync + barrier b3 sync + txdata -data 2 +# rxwinup + rxresp + expect resp.status == 700 + barrier b4 sync + } -start +} -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] bbe46aa94 Add test case for large req body buffer use Message-ID: <20231018092108.6FEC41029DE@lists.varnish-cache.org> commit bbe46aa94bc0b6485ca5c4bef43a7690a98459af Author: Martin Blix Grydeland Date: Tue Jun 22 11:49:46 2021 +0200 Add test case for large req body buffer use diff --git a/bin/varnishtest/tests/t02018.vtc b/bin/varnishtest/tests/t02018.vtc new file mode 100644 index 000000000..b6ff9eec8 --- /dev/null +++ b/bin/varnishtest/tests/t02018.vtc @@ -0,0 +1,36 @@ +varnishtest "H/2 stream multiple buffer exhaustion" + +server s1 { + rxreq + txresp +} -start + +varnish v1 -vcl+backend { +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" +varnish v1 -cliok "param.reset h2_rx_window_low_water" + +client c1 { + stream 1 { + txreq -req GET -url /1 -hdr "content-length" "131072" -nostrend + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 + rxresp + expect resp.status == 200 + } -start +} -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] e794644d0 Improve the panic output when triggered on an H2 session Message-ID: <20231018092108.8AF881029E7@lists.varnish-cache.org> commit e794644d0ad6d3a0da86797d2492fcababb21cb6 Author: Martin Blix Grydeland Date: Wed May 19 14:25:31 2021 +0200 Improve the panic output when triggered on an H2 session diff --git a/bin/varnishd/http2/cache_http2_panic.c b/bin/varnishd/http2/cache_http2_panic.c index 9e80eb67b..c0ca36f88 100644 --- a/bin/varnishd/http2/cache_http2_panic.c +++ b/bin/varnishd/http2/cache_http2_panic.c @@ -34,6 +34,15 @@ #include "cache/cache_transport.h" #include "http2/cache_http2.h" +static const char * +h2_panic_error(const struct h2_error_s *e) +{ + if (e == NULL) + return ("(null)"); + else + return (e->name); +} + void h2_sess_panic(struct vsb *vsb, const struct sess *sp) { @@ -44,21 +53,45 @@ h2_sess_panic(struct vsb *vsb, const struct sess *sp) AZ(SES_Get_proto_priv(sp, &up)); h2 = (void*)*up; - CHECK_OBJ_NOTNULL(h2, H2_SESS_MAGIC); + VSB_printf(vsb, "h2_sess = %p,\n", h2); + PAN_CheckMagic(vsb, h2, H2_SESS_MAGIC); + if (!VALID_OBJ(h2, H2_SESS_MAGIC)) + return; + VSB_printf(vsb, "refcnt = %d, bogosity = %d, error = %s\n", + h2->refcnt, h2->bogosity, h2_panic_error(h2->error)); + VSB_printf(vsb, + "open_streams = %d, highest_stream = %u," + " goaway_last_stream = %u,\n", + h2->open_streams, h2->highest_stream, h2->goaway_last_stream); + VSB_printf(vsb, + "{rxf_len, rxf_type, rxf_flags, rxf_stream} =" + " {%u, %u, 0x%x, %u},\n", + h2->rxf_len, h2->rxf_type, h2->rxf_flags, h2->rxf_stream); VSB_printf(vsb, "streams {\n"); VSB_indent(vsb, 2); VTAILQ_FOREACH(r2, &h2->streams, list) { PAN_CheckMagic(vsb, r2, H2_REQ_MAGIC); - VSB_printf(vsb, "0x%08x", r2->stream); + VSB_printf(vsb, "%u %p ", r2->stream, r2); switch (r2->state) { -#define H2_STREAM(U,sd,d) case H2_S_##U: VSB_printf(vsb, " %-6s", sd); break; +#define H2_STREAM(U,sd,d) case H2_S_##U: VSB_printf(vsb, "%s", sd); break; #include default: - VSB_printf(vsb, " State %d", r2->state); + VSB_printf(vsb, " 0x%x", r2->state); break; } - VSB_printf(vsb, "\n"); + VSB_printf(vsb, " {\n"); + VSB_indent(vsb, 2); + + VSB_printf(vsb, "h2_sess = %p, scheduled = %d, error = %s,\n", + r2->h2sess, r2->scheduled, h2_panic_error(r2->error)); + VSB_printf(vsb, "t_send = %f, t_winupd = %f,\n", + r2->t_send, r2->t_winupd); + VSB_printf(vsb, "t_window = %jd, r_window = %jd,\n", + r2->t_window, r2->r_window); + + VSB_indent(vsb, -2); + VSB_printf(vsb, "},\n"); } VSB_indent(vsb, -2); - VSB_printf(vsb, "}\n"); + VSB_printf(vsb, "},\n"); } From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] da78f6278 Panic dump H2 rxbuf Message-ID: <20231018092108.A36FC1029F7@lists.varnish-cache.org> commit da78f6278cc80e15d5debd1bcfe07e3aab6aba30 Author: Martin Blix Grydeland Date: Wed May 19 14:26:09 2021 +0200 Panic dump H2 rxbuf diff --git a/bin/varnishd/http2/cache_http2_panic.c b/bin/varnishd/http2/cache_http2_panic.c index c0ca36f88..a64dae674 100644 --- a/bin/varnishd/http2/cache_http2_panic.c +++ b/bin/varnishd/http2/cache_http2_panic.c @@ -89,6 +89,20 @@ h2_sess_panic(struct vsb *vsb, const struct sess *sp) VSB_printf(vsb, "t_window = %jd, r_window = %jd,\n", r2->t_window, r2->r_window); + VSB_printf(vsb, "rxbuf = %p", r2->rxbuf); + if (r2->rxbuf != NULL) { + VSB_printf(vsb, " {\n"); + VSB_indent(vsb, 2); + PAN_CheckMagic(vsb, r2->rxbuf, H2_RXBUF_MAGIC); + VSB_printf(vsb, "stvbuf = %p,\n", r2->rxbuf->stvbuf); + VSB_printf(vsb, + "{size, tail, head} = {%u, %ju, %ju},\n", + r2->rxbuf->size, r2->rxbuf->tail, r2->rxbuf->head); + VSB_indent(vsb, -2); + VSB_printf(vsb, "}"); + } + VSB_printf(vsb, ",\n"); + VSB_indent(vsb, -2); VSB_printf(vsb, "},\n"); } From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] 99a3ac45b Panic H2 local and remote settings Message-ID: <20231018092108.C2169102A02@lists.varnish-cache.org> commit 99a3ac45b030cfd2fef0307a3c77b53de7d489ee Author: Martin Blix Grydeland Date: Wed May 19 14:42:41 2021 +0200 Panic H2 local and remote settings diff --git a/bin/varnishd/http2/cache_http2_panic.c b/bin/varnishd/http2/cache_http2_panic.c index a64dae674..d41eb3b49 100644 --- a/bin/varnishd/http2/cache_http2_panic.c +++ b/bin/varnishd/http2/cache_http2_panic.c @@ -43,6 +43,20 @@ h2_panic_error(const struct h2_error_s *e) return (e->name); } +static void +h2_panic_settings(struct vsb *vsb, const struct h2_settings *s) +{ + int cont = 0; + +#define H2_SETTING(U,l,...) \ + if (cont) \ + VSB_printf(vsb, ", "); \ + cont = 1; \ + VSB_printf(vsb, "0x%x", s->l); +#include "tbl/h2_settings.h" +#undef H2_SETTING +} + void h2_sess_panic(struct vsb *vsb, const struct sess *sp) { @@ -63,6 +77,12 @@ h2_sess_panic(struct vsb *vsb, const struct sess *sp) "open_streams = %d, highest_stream = %u," " goaway_last_stream = %u,\n", h2->open_streams, h2->highest_stream, h2->goaway_last_stream); + VSB_printf(vsb, "local_settings = {"); + h2_panic_settings(vsb, &h2->local_settings); + VSB_printf(vsb, "},\n"); + VSB_printf(vsb, "remote_settings = {"); + h2_panic_settings(vsb, &h2->remote_settings); + VSB_printf(vsb, "},\n"); VSB_printf(vsb, "{rxf_len, rxf_type, rxf_flags, rxf_stream} =" " {%u, %u, 0x%x, %u},\n", From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] c581caba8 Test case that buffers fully before starting to consume the req body Message-ID: <20231018092108.DBD70102A0B@lists.varnish-cache.org> commit c581caba8ee05c194dbe3b95f7ecb0b5cb2fc658 Author: Martin Blix Grydeland Date: Tue Jun 22 11:50:03 2021 +0200 Test case that buffers fully before starting to consume the req body diff --git a/bin/varnishtest/tests/t02019.vtc b/bin/varnishtest/tests/t02019.vtc new file mode 100644 index 000000000..3adcf2603 --- /dev/null +++ b/bin/varnishtest/tests/t02019.vtc @@ -0,0 +1,43 @@ +varnishtest "H/2 stream early buffer exhaustion" + +barrier b1 sock 2 + +server s1 { + rxreq + txresp +} -start + +varnish v1 -vcl+backend { + import vtc; + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + vtc.sleep(0.1s); + } +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" +varnish v1 -cliok "param.reset h2_rx_window_low_water" + +client c1 { + stream 1 { + txreq -req POST -url /1 -hdr "content-length" "131072" -nostrend + txdata -datalen 16384 -nostrend + txdata -datalen 16384 -nostrend + txdata -datalen 16384 -nostrend + txdata -datalen 16383 -nostrend + barrier b1 sync + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 16384 -nostrend + rxwinup + txdata -datalen 1 + rxresp + expect resp.status == 200 + } -run +} -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:08 +0000 (UTC) Subject: [6.0] 8e143fbf4 Varnishtest: Allow padding up to and including 255 bytes Message-ID: <20231018092109.0303A102A22@lists.varnish-cache.org> commit 8e143fbf476aa2231038b47efca7eede62ab2acb Author: Martin Blix Grydeland Date: Tue Jun 22 11:50:07 2021 +0200 Varnishtest: Allow padding up to and including 255 bytes According to the spec the padding is an 8-bit field, and fields should be treated as unsigned unless otherwise specified, which it is not for any of the padding related places. Allow varnishtest to generate padding up to 255 bytes long. diff --git a/bin/varnishtest/vtc_http2.c b/bin/varnishtest/vtc_http2.c index b72e53228..5d16f3e15 100644 --- a/bin/varnishtest/vtc_http2.c +++ b/bin/varnishtest/vtc_http2.c @@ -1565,8 +1565,8 @@ cmd_tx11obj(CMD_ARGS) exclusive_stream_dependency(s); } if (pad) { - if (strlen(pad) >= 128) - vtc_fatal(vl, "Padding is limited to 128 bytes"); + if (strlen(pad) > 255) + vtc_fatal(vl, "Padding is limited to 255 bytes"); f.flags |= PADDED; assert(f.size + strlen(pad) < BUF_SIZE); memmove(buf + 1, buf, f.size); @@ -1659,8 +1659,8 @@ cmd_txdata(CMD_ARGS) if (pad) { f.flags |= PADDED; - if (strlen(pad) >= 128) - vtc_fatal(vl, "Padding is limited to 128 bytes"); + if (strlen(pad) > 255) + vtc_fatal(vl, "Padding is limited to 255 bytes"); data = malloc( 1 + strlen(body) + strlen(pad)); AN(data); *((uint8_t *)data) = strlen(pad); From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:09 +0000 (UTC) Subject: [6.0] 2f0da6c47 Implement handling of padding bytes in received data frames Message-ID: <20231018092109.22DBA102A2C@lists.varnish-cache.org> commit 2f0da6c4779f3acdb9a4f50edf412ea94d63c9a5 Author: Martin Blix Grydeland Date: Tue Jun 22 11:50:11 2021 +0200 Implement handling of padding bytes in received data frames This was found lacking in our H2 implementation. Previously we would have included any padding bytes in the request body. Possibly it would have caused errors if there also was a C-L present, or more likely just corrupt request bodies. If the client sends nothing but padding bytes and ends up consuming the entire stream window with no actual request bytes buffered, the request thread side of things would not send any stream window updates. Handle this corner case by sending a window update from the session thread. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 6bb7a9ad6..eeef75c8b 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -772,6 +772,7 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) char buf[4]; uint64_t l, l2, head; const uint8_t *src; + unsigned len; /* XXX: Shouldn't error handling, setting of r2->error and * r2->cond signalling be handled more generally at the end of @@ -799,13 +800,31 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (h2->error ? h2->error : r2->error); } + /* Check padding if present */ + src = h2->rxf_data; + len = h2->rxf_len; + if (h2->rxf_flags & H2FF_DATA_PADDED) { + if (*src >= len) { + VSLb(h2->vsl, SLT_Debug, + "H2: stream %u: Padding larger than frame length", + h2->rxf_stream); + r2->error = H2CE_PROTOCOL_ERROR; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_PROTOCOL_ERROR); + } + len -= 1 + *src; + src += 1; + } + /* Check against the Content-Length header if given */ if (r2->req->htc->content_length >= 0) { if (r2->rxbuf) l = r2->rxbuf->head; else l = 0; - l += h2->rxf_len; + l += len; if (l > r2->req->htc->content_length || ((h2->rxf_flags & H2FF_DATA_END_STREAM) && l != r2->req->htc->content_length)) { @@ -820,17 +839,8 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) } } - /* Handle zero size frame before starting to allocate buffers */ - if (h2->rxf_len == 0) { - if (h2->rxf_flags & H2FF_DATA_END_STREAM) - r2->state = H2_S_CLOS_REM; - if (r2->cond) - AZ(pthread_cond_signal(r2->cond)); - Lck_Unlock(&h2->sess->mtx); - return (0); - } - - /* Check and charge connection window */ + /* Check and charge connection window. The entire frame including + * padding (h2->rxf_len) counts towards the window. */ if (h2->rxf_len > h2->req0->r_window) { VSLb(h2->vsl, SLT_Debug, "H2: stream %u: Exceeded connection receive window", @@ -852,7 +862,8 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Lock(&h2->sess->mtx); } - /* Check stream window */ + /* Check stream window. The entire frame including padding + * (h2->rxf_len) counts towards the window. */ if (h2->rxf_len > r2->r_window) { VSLb(h2->vsl, SLT_Debug, "H2: stream %u: Exceeded stream receive window", @@ -864,6 +875,41 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (H2SE_FLOW_CONTROL_ERROR); } + /* Handle zero size frame before starting to allocate buffers */ + if (len == 0) { + r2->r_window -= h2->rxf_len; + + /* Handle the specific corner case where the entire window + * has been exhausted using nothing but padding + * bytes. Since no bytes have been buffered, no bytes + * would be consumed by the request thread and no stream + * window updates sent. Unpaint ourselves from this corner + * by sending a stream window update here. */ + CHECK_OBJ_ORNULL(r2->rxbuf, H2_RXBUF_MAGIC); + if (r2->r_window == 0 && + (r2->rxbuf == NULL || r2->rxbuf->tail == r2->rxbuf->head)) { + if (r2->rxbuf) + l = r2->rxbuf->size; + else + l = h2->local_settings.initial_window_size; + r2->r_window += l; + Lck_Unlock(&h2->sess->mtx); + vbe32enc(buf, l); + H2_Send_Get(wrk, h2, h2->req0); + H2_Send_Frame(wrk, h2, H2_F_WINDOW_UPDATE, 0, 4, + r2->stream, buf); + H2_Send_Rel(h2, h2->req0); + Lck_Lock(&h2->sess->mtx); + } + + if (h2->rxf_flags & H2FF_DATA_END_STREAM) + r2->state = H2_S_CLOS_REM; + if (r2->cond) + AZ(pthread_cond_signal(r2->cond)); + Lck_Unlock(&h2->sess->mtx); + return (0); + } + /* Make the buffer on demand */ if (r2->rxbuf == NULL) { unsigned bufsize; @@ -873,15 +919,20 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Unlock(&h2->sess->mtx); - bufsize = r2->r_window; - /* This is the first data frame, so r_window will be the - * initial window size. */ + bufsize = h2->local_settings.initial_window_size; + if (bufsize < r2->r_window) { + /* This will not happen because we do not have any + * mechanism to change the initial window size on + * a running session. But if we gain that ability, + * this future proofs it. */ + bufsize = r2->r_window; + } assert(bufsize > 0); if ((h2->rxf_flags & H2FF_DATA_END_STREAM) && - bufsize > h2->rxf_len) + bufsize > len) /* Cap the buffer size when we know this is the * single data frame. */ - bufsize = h2->rxf_len; + bufsize = len; stvbuf = STV_AllocBuf(wrk, stv_transient, bufsize + sizeof *rxbuf); if (stvbuf == NULL) { @@ -914,13 +965,11 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) l = r2->rxbuf->head - r2->rxbuf->tail; assert(l <= r2->rxbuf->size); l = r2->rxbuf->size - l; - assert(h2->rxf_len <= l); /* Stream window handling ensures - * this */ + assert(len <= l); /* Stream window handling ensures this */ Lck_Unlock(&h2->sess->mtx); - src = h2->rxf_data; - l = h2->rxf_len; + l = len; head = r2->rxbuf->head; do { l2 = l; @@ -934,9 +983,14 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) } while (l > 0); Lck_Lock(&h2->sess->mtx); - /* Charge stream window */ + + /* Charge stream window. The entire frame including padding + * (h2->rxf_len) counts towards the window. The used padding + * bytes will be included in the next connection window update + * sent when the buffer bytes are consumed because that is + * calculated against the available buffer space. */ r2->r_window -= h2->rxf_len; - r2->rxbuf->head += h2->rxf_len; + r2->rxbuf->head += len; assert(r2->rxbuf->tail <= r2->rxbuf->head); if (h2->rxf_flags & H2FF_DATA_END_STREAM) r2->state = H2_S_CLOS_REM; diff --git a/bin/varnishtest/tests/t02020.vtc b/bin/varnishtest/tests/t02020.vtc new file mode 100644 index 000000000..77738e17f --- /dev/null +++ b/bin/varnishtest/tests/t02020.vtc @@ -0,0 +1,66 @@ +varnishtest "H/2 received data frames with padding" + +barrier b1 sock 2 + +server s1 { + rxreq + expect req.url == /1 + expect req.body == abcde + txresp + rxreq + txresp + rxreq + txresp + expect req.body == a +} -start + +varnish v1 -vcl+backend { + import vtc; + sub vcl_recv { + if (req.url == "/3") { + vtc.barrier_sync("${b1_sock}"); + } + } +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" +varnish v1 -cliok "param.reset h2_rx_window_low_water" +varnish v1 -cliok "param.set debug +syncvsl" + +client c1 { + stream 1 { + txreq -req POST -url /1 -hdr "content-length" "5" -nostrend + txdata -data abcde -padlen 1 + rxresp + expect resp.status == 200 + } -run + + stream 3 { + txreq -req POST -url /3 -hdr "content-length" "131072" -nostrend + txdata -datalen 16300 -padlen 83 -nostrend + txdata -datalen 16300 -padlen 83 -nostrend + txdata -datalen 16300 -padlen 83 -nostrend + txdata -datalen 16300 -padlen 82 -nostrend + barrier b1 sync + rxwinup + txdata -datalen 16300 -padlen 83 -nostrend + rxwinup + txdata -datalen 16300 -padlen 83 -nostrend + rxwinup + txdata -datalen 16300 -padlen 83 -nostrend + rxwinup + txdata -datalen 16300 -padlen 83 -nostrend + rxwinup + txdata -datalen 672 + rxresp + expect resp.status == 200 + } -run + + stream 5 { + txreq -req POST -url /5 -nostrend + txdata -data a -padlen 255 + rxresp + expect resp.status == 200 + } -run +} -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:09 +0000 (UTC) Subject: [6.0] 546b72758 Add a test case for exhausting window by padding Message-ID: <20231018092109.486FB102A42@lists.varnish-cache.org> commit 546b7275843d50193142e03ee87a22ffb6bf11fb Author: Martin Blix Grydeland Date: Tue Jun 22 11:50:15 2021 +0200 Add a test case for exhausting window by padding diff --git a/bin/varnishtest/tests/t02021.vtc b/bin/varnishtest/tests/t02021.vtc new file mode 100644 index 000000000..97bbb90ac --- /dev/null +++ b/bin/varnishtest/tests/t02021.vtc @@ -0,0 +1,36 @@ +varnishtest "H/2 data frame padding exhaust window" + +server s1 { + rxreq + expect req.body == abcde + txresp +} -start + +varnish v1 -vcl+backend { +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" +varnish v1 -cliok "param.reset h2_rx_window_low_water" + +client c1 { + stream 1 { + txreq -req POST -url /1 -hdr "content-length" "5" -nostrend + + # Fill 65535 bytes of stream window using padding only + # Note that each frame consumes 256 bytes of window (padlen + 1) + + loop 255 { + txdata -padlen 255 -nostrend + } + txdata -padlen 254 -nostrend + + # Here the window have been exhausted, so we should receive + # a window update + rxwinup + + txdata -data abcde + rxresp + expect resp.status == 200 + } -run +} -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:09 +0000 (UTC) Subject: [6.0] de3ed6b76 New 'h2_rxbuf_storage' param to set rxbuf stevedore Message-ID: <20231018092109.662F3102A4F@lists.varnish-cache.org> commit de3ed6b760bb8fd9a69bbe696cee8ebff81ec709 Author: Martin Blix Grydeland Date: Wed Aug 11 17:16:13 2021 +0200 New 'h2_rxbuf_storage' param to set rxbuf stevedore This parameter allows the user to choose which storage backend / stevedore that the H/2 receive buffers are allocated from. By default it uses Transient. Conflicts: bin/varnishd/mgt/mgt.h bin/varnishd/mgt/mgt_param.h bin/varnishd/mgt/mgt_param_tbl.c include/tbl/params.h diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index eeef75c8b..df3c041aa 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -933,7 +933,8 @@ h2_rx_data(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) /* Cap the buffer size when we know this is the * single data frame. */ bufsize = len; - stvbuf = STV_AllocBuf(wrk, stv_transient, + CHECK_OBJ_NOTNULL(stv_h2_rxbuf, STEVEDORE_MAGIC); + stvbuf = STV_AllocBuf(wrk, stv_h2_rxbuf, bufsize + sizeof *rxbuf); if (stvbuf == NULL) { VSLb(h2->vsl, SLT_Debug, diff --git a/bin/varnishd/mgt/mgt.h b/bin/varnishd/mgt/mgt.h index 7575de2d8..3d10c29df 100644 --- a/bin/varnishd/mgt/mgt.h +++ b/bin/varnishd/mgt/mgt.h @@ -202,6 +202,7 @@ char **MGT_NamedArg(const char *, const char **, const char *); /* stevedore_mgt.c */ +extern const char *mgt_stv_h2_rxbuf; void STV_Config(const char *spec); void STV_Config_Transient(void); diff --git a/bin/varnishd/mgt/mgt_param.h b/bin/varnishd/mgt/mgt_param.h index 7188b64e1..bec4b0c6b 100644 --- a/bin/varnishd/mgt/mgt_param.h +++ b/bin/varnishd/mgt/mgt_param.h @@ -67,6 +67,7 @@ tweak_t tweak_timeout; tweak_t tweak_uint; tweak_t tweak_vsl_buffer; tweak_t tweak_vsl_reclen; +tweak_t tweak_h2_rxbuf_storage; int tweak_generic_uint(struct vsb *vsb, volatile unsigned *dest, const char *arg, const char *min, const char *max); diff --git a/bin/varnishd/mgt/mgt_param_tbl.c b/bin/varnishd/mgt/mgt_param_tbl.c index 2bd7bb92e..f6ed13382 100644 --- a/bin/varnishd/mgt/mgt_param_tbl.c +++ b/bin/varnishd/mgt/mgt_param_tbl.c @@ -152,6 +152,12 @@ struct parspec mgt_parspec[] = { 0, "255b", "bytes" }, + { "h2_rxbuf_storage", tweak_h2_rxbuf_storage, &mgt_stv_h2_rxbuf, + NULL, NULL, + "The name of the storage backend that HTTP/2 receive buffers" + " should be allocated from.", + MUST_RESTART, + "Transient", "" }, { NULL, NULL, NULL } }; diff --git a/bin/varnishd/mgt/mgt_param_tweak.c b/bin/varnishd/mgt/mgt_param_tweak.c index 01cab5f6b..b3b3d8044 100644 --- a/bin/varnishd/mgt/mgt_param_tweak.c +++ b/bin/varnishd/mgt/mgt_param_tweak.c @@ -40,6 +40,7 @@ #include "mgt/mgt.h" #include "mgt/mgt_param.h" +#include "storage/storage.h" #include "vav.h" #include "vnum.h" @@ -440,3 +441,43 @@ tweak_poolparam(struct vsb *vsb, const struct parspec *par, const char *arg) } return (retval); } + +/*-------------------------------------------------------------------- + * Tweak 'h2_rxbuf_storage' + * + */ + +int v_matchproto_(tweak_t) +tweak_h2_rxbuf_storage(struct vsb *vsb, const struct parspec *par, + const char *arg) +{ + struct stevedore *stv; + + /* XXX: If we want to remove the MUST_RESTART flag from the + * h2_rxbuf_storage parameter, we could have a mechanism here + * that when the child is running calls out through CLI to change + * the stevedore being used. */ + + if (arg == NULL || arg == JSON_FMT) + return (tweak_string(vsb, par, arg)); + + if (!strcmp(arg, "Transient")) { + /* Always allow setting to the special name + * "Transient". There will always be a stevedore with this + * name, but it may not have been configured at the time + * this is called. */ + } else { + /* Only allow setting the value to a known configured + * stevedore */ + STV_Foreach(stv) { + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); + if (!strcmp(stv->ident, arg)) + break; + } + if (stv == NULL) { + VSB_printf(vsb, "unknown storage backend '%s'", arg); + return (-1); + } + } + return (tweak_string(vsb, par, arg)); +} diff --git a/bin/varnishd/storage/mgt_stevedore.c b/bin/varnishd/storage/mgt_stevedore.c index c204a3e53..2c95ba0f5 100644 --- a/bin/varnishd/storage/mgt_stevedore.c +++ b/bin/varnishd/storage/mgt_stevedore.c @@ -52,6 +52,8 @@ static VTAILQ_HEAD(, stevedore) stevedores = struct stevedore *stv_transient; +const char *mgt_stv_h2_rxbuf; + /*--------------------------------------------------------------------*/ int @@ -245,7 +247,6 @@ STV_Config(const char *spec) void STV_Config_Transient(void) { - ASSERT_MGT(); VCLS_AddFunc(mgt_cls, MCF_AUTH, cli_stv); diff --git a/bin/varnishd/storage/stevedore.c b/bin/varnishd/storage/stevedore.c index 72949db42..a6c124fc4 100644 --- a/bin/varnishd/storage/stevedore.c +++ b/bin/varnishd/storage/stevedore.c @@ -41,6 +41,8 @@ #include "storage/storage.h" #include "vrt_obj.h" +extern const char *mgt_stv_h2_rxbuf; +struct stevedore *stv_h2_rxbuf = NULL; static pthread_mutex_t stv_mtx; @@ -171,13 +173,23 @@ STV_open(void) ASSERT_CLI(); AZ(pthread_mutex_init(&stv_mtx, NULL)); + + /* This string was prepared for us before the fork, and should + * point to a configured stevedore. */ + AN(mgt_stv_h2_rxbuf); + + stv_h2_rxbuf = NULL; STV_Foreach(stv) { + CHECK_OBJ_NOTNULL(stv, STEVEDORE_MAGIC); bprintf(buf, "storage.%s", stv->ident); stv->vclname = strdup(buf); AN(stv->vclname); if (stv->open != NULL) stv->open(stv); + if (!strcmp(stv->ident, mgt_stv_h2_rxbuf)) + stv_h2_rxbuf = stv; } + AN(stv_h2_rxbuf); } void diff --git a/bin/varnishd/storage/storage.h b/bin/varnishd/storage/storage.h index 53208236c..7d7345b9b 100644 --- a/bin/varnishd/storage/storage.h +++ b/bin/varnishd/storage/storage.h @@ -130,6 +130,7 @@ struct stevedore { }; extern struct stevedore *stv_transient; +extern struct stevedore *stv_h2_rxbuf; /*--------------------------------------------------------------------*/ diff --git a/bin/varnishtest/tests/t02022.vtc b/bin/varnishtest/tests/t02022.vtc new file mode 100644 index 000000000..6a7ea5cc4 --- /dev/null +++ b/bin/varnishtest/tests/t02022.vtc @@ -0,0 +1,86 @@ +varnishtest "Test non-transient rxbuf stevedore with LRU nuking" + +barrier b1 sock 2 -cyclic + +server s1 { + rxreq + txresp -body asdf + rxreq + txresp -bodylen 1048000 + rxreq + txresp -body ASDF +} -start + +varnish v1 -arg "-srxbuf=malloc,1m -smain=malloc,1m" -vcl+backend { + import vtc; + sub vcl_recv { + if (req.url == "/1") { + vtc.barrier_sync("${b1_sock}"); + } + } + sub vcl_backend_response { + if (bereq.url == "/2") { + set beresp.storage = storage.rxbuf; + } else { + set beresp.storage = storage.main; + } + } +} + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.reset h2_initial_window_size" +varnish v1 -cliok "param.reset h2_rx_window_low_water" +varnish v1 -cliok "param.set h2_rxbuf_storage rxbuf" +varnish v1 -cliok "param.set debug +syncvsl" + +varnish v1 -start + +client c1 { + stream 1 { + txreq -req POST -url /1 -hdr "content-length" "2048" -nostrend + txdata -datalen 2048 + rxresp + expect resp.status == 200 + } -start +} -start + +varnish v1 -expect SMA.rxbuf.g_bytes >= 2048 +varnish v1 -expect SMA.Transient.g_bytes == 0 +varnish v1 -expect MAIN.n_lru_nuked == 0 + +barrier b1 sync +client c1 -wait + +varnish v1 -expect SMA.rxbuf.g_bytes == 0 +varnish v1 -expect SMA.Transient.g_bytes == 0 +varnish v1 -expect MAIN.n_lru_nuked == 0 + +client c2 { + txreq -url /2 + rxresp + expect resp.status == 200 + expect resp.bodylen == 1048000 +} -run + +varnish v1 -expect SMA.rxbuf.g_bytes >= 1048000 +varnish v1 -expect MAIN.n_lru_nuked == 0 + +client c3 { + stream 1 { + txreq -req POST -url /1 -hdr "content-length" "2048" -nostrend + txdata -datalen 2048 + rxresp + expect resp.status == 200 + } -start +} -start + +varnish v1 -expect SMA.rxbuf.g_bytes >= 2048 +varnish v1 -expect SMA.rxbuf.g_bytes < 3000 +varnish v1 -expect SMA.Transient.g_bytes == 0 +varnish v1 -expect MAIN.n_lru_nuked == 1 + +barrier b1 sync +client c3 -wait + +varnish v1 -expect SMA.rxbuf.g_bytes == 0 +varnish v1 -expect SMA.Transient.g_bytes == 0 diff --git a/include/tbl/params.h b/include/tbl/params.h index 7a9cf2897..59280f9cc 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1878,6 +1878,24 @@ PARAM( /* func */ NULL ) +#if 0 +/* actual location mgt_param_tbl.c */ +PARAM( + /* name */ h2_rxbuf_storage, + /* typ */ h2_rxbuf_storage, + /* min */ NULL, + /* max */ NULL, + /* default */ "Transient", + /* units */ NULL, + /* flags */ MUST_RESTART, + /* s-text */ + "The name of the storage backend that HTTP/2 receive buffers" + " should be allocated from.", + /* l-text */ "", + /* func */ NULL +) +#endif + #undef PARAM /*lint -restore */ From dridi.boukelmoune at gmail.com Wed Oct 18 09:21:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:21:09 +0000 (UTC) Subject: [6.0] 58e7f3e54 vtc: Stabilize r02305.vtc Message-ID: <20231018092109.826C0102A64@lists.varnish-cache.org> commit 58e7f3e5411860728de93b0f57b022c5e5c9bf27 Author: Dridi Boukelmoune Date: Tue Oct 20 09:30:40 2020 +0200 vtc: Stabilize r02305.vtc We don't need a delay, we need to sync operations. diff --git a/bin/varnishtest/tests/r02305.vtc b/bin/varnishtest/tests/r02305.vtc index dfd60398a..d5a40fe73 100644 --- a/bin/varnishtest/tests/r02305.vtc +++ b/bin/varnishtest/tests/r02305.vtc @@ -1,12 +1,14 @@ varnishtest "#2305: h/2 reembark with a request body" barrier b1 cond 2 +barrier b2 cond 2 +barrier b3 cond 2 server s1 { rxreq expect req.url == "/" barrier b1 sync - delay 2 + barrier b2 sync txresp } -start @@ -25,10 +27,13 @@ client c1 { txreq rxresp expect resp.status == 200 + barrier b3 sync } -start stream 3 { barrier b1 sync txreq -req POST -body "foo" + barrier b2 sync + barrier b3 sync rxresp expect resp.status == 200 } -run From dridi.boukelmoune at gmail.com Wed Oct 18 09:33:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 09:33:06 +0000 (UTC) Subject: [master] 4991d9f6e vtc: Stabilize r3996 and increase coverage Message-ID: <20231018093306.70EB2105CD5@lists.varnish-cache.org> commit 4991d9f6e40f381d058a83fc21ceed90e34a822e Author: Dridi Boukelmoune Date: Wed Oct 18 11:02:48 2023 +0200 vtc: Stabilize r3996 and increase coverage With #3998 we need to ensure streams are not going to skip vcl_recv if reset faster than reaching this step for the request task. The alternative to prevent the vcl_req_reset feature from interfering is to simply disable it. diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 3fee3706c..7faf78316 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -1,6 +1,7 @@ varnishtest "h2 rapid reset" -barrier b1 sock 5 +barrier b1 sock 2 -cyclic +barrier b2 sock 5 -cyclic server s1 { rxreq @@ -16,7 +17,10 @@ varnish v1 -vcl+backend { import vtc; sub vcl_recv { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } + vtc.barrier_sync("${b2_sock}"); } } -start @@ -27,6 +31,41 @@ client c1 { expect goaway.err == ENHANCE_YOUR_CALM } -start + stream 1 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 3 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 5 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 7 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + + barrier b2 sync + stream 0 -wait +} -run + +varnish v1 -expect sc_rapid_reset == 1 + +varnish v1 -cliok "param.set feature -vcl_req_reset" + +client c2 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + stream 1 { txreq txrst @@ -44,8 +83,8 @@ client c1 { txrst } -run - barrier b1 sync + barrier b2 sync stream 0 -wait } -run -varnish v1 -expect sc_rapid_reset == 1 +varnish v1 -expect sc_rapid_reset == 2 From dridi.boukelmoune at gmail.com Wed Oct 18 11:25:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 11:25:06 +0000 (UTC) Subject: [master] b4c503026 vtc: Missing synchronization in t02025 Message-ID: <20231018112506.4B2D31094C7@lists.varnish-cache.org> commit b4c503026e5d331e75926b32f17c7b2eda96814a Author: Dridi Boukelmoune Date: Wed Oct 18 13:23:15 2023 +0200 vtc: Missing synchronization in t02025 Noticed while porting #3998 to the 6.0 branch with a varnishtest more sensitive to timing. diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc index 3b7e90e8a..578dbf5c8 100644 --- a/bin/varnishtest/tests/t02025.vtc +++ b/bin/varnishtest/tests/t02025.vtc @@ -30,11 +30,14 @@ client c1 { barrier b1 sync txrst } -run + expect_close } -start logexpect l1 -wait barrier b2 sync +client c1 -wait + varnish v1 -vsl_catchup varnish v1 -expect req_reset == 1 From nils.goroll at uplex.de Wed Oct 18 11:41:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 11:41:05 +0000 (UTC) Subject: [master] 4d584ddb0 Start NEXT sections in vrt.h and changes.rst Message-ID: <20231018114105.3D24C109F03@lists.varnish-cache.org> commit 4d584ddb082c1b343f70eb467578814f29f75033 Author: Nils Goroll Date: Wed Oct 18 12:08:14 2023 +0200 Start NEXT sections in vrt.h and changes.rst to anchor patches diff --git a/doc/changes.rst b/doc/changes.rst index 5253888cb..72f2fa70c 100644 --- a/doc/changes.rst +++ b/doc/changes.rst @@ -34,13 +34,17 @@ http://varnish-cache.org/docs/trunk/whats-new/index.html and via individual releases. These documents are updated as part of the release process. -================================ -Varnish Cache 7.4.0 (2023-09-15) -================================ +=============================== +Varnish Cache NEXT (2024-03-15) +=============================== .. PLEASE keep this roughly in commit order as shown by git-log / tig (new to old) +================================ +Varnish Cache 7.4.0 (2023-09-15) +================================ + * The ``VSB_quote_pfx()`` (and, consequently, ``VSB_quote()``) function no longer produces ``\v`` for a vertical tab. This improves compatibility with JSON. diff --git a/include/vrt.h b/include/vrt.h index 36f7081d8..26509f344 100644 --- a/include/vrt.h +++ b/include/vrt.h @@ -57,6 +57,7 @@ * Whenever something is deleted or changed in a way which is not * binary/load-time compatible, increment MAJOR version * + * NEXT (2024-03-15) * 18.0 (2023-09-15) * [cache_filter.h] struct vdp gained priv1 member * VRT_trace() added From nils.goroll at uplex.de Wed Oct 18 11:41:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 11:41:05 +0000 (UTC) Subject: [master] f820f8016 Copy rapid reset parameters to the h2 session Message-ID: <20231018114105.5B917109F06@lists.varnish-cache.org> commit f820f8016193d0aadbd8b2a52ff241a3145686f4 Author: Nils Goroll Date: Tue Oct 17 13:47:39 2023 +0200 Copy rapid reset parameters to the h2 session This will allow per-session adjustments and also significantly lower the risk of inconsistent calculations in the rate limit code during parameter changes. Ref #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 65ea1d2df..ca2e65993 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -194,6 +194,13 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + + // rst rate limit parameters, copied from h2_* parameters + vtim_dur rapid_reset; + int64_t rapid_reset_limit; + vtim_dur rapid_reset_period; + + // rst rate limit state double rst_budget; vtim_real last_rst; }; diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 50504c021..edcc709d9 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -331,20 +331,20 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) ASSERT_RXTHR(h2); CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); - if (cache_param->h2_rapid_reset_limit == 0) + if (h2->rapid_reset_limit == 0) return (0); now = VTIM_real(); CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); AN(r2->req->t_first); - if (now - r2->req->t_first > cache_param->h2_rapid_reset) + if (now - r2->req->t_first > h2->rapid_reset) return (0); d = now - h2->last_rst; - h2->rst_budget += cache_param->h2_rapid_reset_limit * d / - cache_param->h2_rapid_reset_period; + h2->rst_budget += h2->rapid_reset_limit * d / + h2->rapid_reset_period; h2->rst_budget = vmin_t(double, h2->rst_budget, - cache_param->h2_rapid_reset_limit); + h2->rapid_reset_limit); h2->last_rst = now; if (h2->rst_budget < 1.0) { diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index ef0d88ede..acbfdbb51 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,7 +127,12 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; - h2->rst_budget = cache_param->h2_rapid_reset_limit; + + h2->rapid_reset = cache_param->h2_rapid_reset; + h2->rapid_reset_limit = cache_param->h2_rapid_reset_limit; + h2->rapid_reset_period = cache_param->h2_rapid_reset_period; + + h2->rst_budget = h2->rapid_reset_limit; h2->last_rst = sp->t_open; AZ(isnan(h2->last_rst)); diff --git a/include/tbl/params.h b/include/tbl/params.h index ae622e53d..003f08d2a 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,8 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +#define H2_RR_INFO \ + "Changes to this parameter affect the default for new HTTP2 sessions" PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, @@ -1268,8 +1270,8 @@ PARAM_SIMPLE( "The upper threshold for how soon an http/2 RST_STREAM frame has " "to be parsed after a HEADERS frame for it to be treated as " "suspect and subjected to the rate limits specified by " - "h2_rapid_reset_limit and h2_rapid_reset_period.", - /* flags */ EXPERIMENTAL, + "h2_rapid_reset_limit and h2_rapid_reset_period.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1283,8 +1285,8 @@ PARAM_SIMPLE( "HTTP2 RST Allowance.\n" "Specifies the maximum number of allowed stream resets issued by\n" "a client over a time period before the connection is closed.\n" - "Setting this parameter to 0 disables the limit.", - /* flags */ EXPERIMENTAL, + "Setting this parameter to 0 disables the limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1295,8 +1297,8 @@ PARAM_SIMPLE( /* def */ "60.000", /* units */ "seconds", /* descr */ - "HTTP2 sliding window duration for h2_rapid_reset_limit.", - /* flags */ EXPERIMENTAL|WIZARD, + "HTTP2 sliding window duration for h2_rapid_reset_limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT|WIZARD, ) /*-------------------------------------------------------------------- From nils.goroll at uplex.de Wed Oct 18 11:41:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 11:41:05 +0000 (UTC) Subject: [master] 2cfb561ed Add vmod_h2 to control rapid_reset parameters per session Message-ID: <20231018114105.81FAE109F0C@lists.varnish-cache.org> commit 2cfb561ed46a2db1e6c2ef9f88cbb8eebb792f25 Author: Nils Goroll Date: Mon Oct 16 16:07:05 2023 +0200 Add vmod_h2 to control rapid_reset parameters per session diff --git a/include/tbl/params.h b/include/tbl/params.h index 003f08d2a..c369bc9e7 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1258,7 +1258,9 @@ PARAM_SIMPLE( ) #define H2_RR_INFO \ - "Changes to this parameter affect the default for new HTTP2 sessions" + "Changes to this parameter affect the default for new HTTP2 " \ + "sessions. vmod_h2(3) can be used to adjust it from VCL." + PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, diff --git a/vmod/Makefile.am b/vmod/Makefile.am index 5f3fa9250..ad3d4b95a 100644 --- a/vmod/Makefile.am +++ b/vmod/Makefile.am @@ -28,6 +28,7 @@ vmod_vcc_files = vmod_debug_vcc = include $(srcdir)/automake_boilerplate_blob.am +include $(srcdir)/automake_boilerplate_h2.am include $(srcdir)/automake_boilerplate_cookie.am include $(srcdir)/automake_boilerplate_debug.am include $(srcdir)/automake_boilerplate_directors.am diff --git a/vmod/automake_boilerplate_h2.am b/vmod/automake_boilerplate_h2.am new file mode 100644 index 000000000..fac5fd517 --- /dev/null +++ b/vmod/automake_boilerplate_h2.am @@ -0,0 +1,42 @@ +# Generated by vmodtool.py --boilerplate. + +vmod_h2_vcc ?= $(srcdir)/vmod_h2.vcc + +vmod_vcc_files += $(vmod_h2_vcc) + +vmod_LTLIBRARIES += libvmod_h2.la + +libvmod_h2_la_SOURCES = \ + vmod_h2.c + +libvmod_h2_la_CFLAGS = + +vmodtoolargs_h2 ?= --strict --boilerplate -o vcc_h2_if +vmod_h2_symbols_regex ?= Vmod_h2_Data + +libvmod_h2_la_LDFLAGS = \ + -export-symbols-regex $(vmod_h2_symbols_regex) \ + $(AM_LDFLAGS) \ + $(VMOD_LDFLAGS) + +nodist_libvmod_h2_la_SOURCES = vcc_h2_if.c vcc_h2_if.h + +EXTRA_libvmod_h2_la_DEPENDENCIES = $(nodist_libvmod_h2_la_SOURCES) + +EXTRA_DIST += automake_boilerplate_h2.am + +$(libvmod_h2_la_OBJECTS): vcc_h2_if.h + +vcc_h2_if.h vmod_h2.rst vmod_h2.man.rst: vcc_h2_if.c + +# A doc-change will not update mtime on the .h and .c files, so a +# touch(1) is necessary to signal that vmodtool was in fact run. +vcc_h2_if.c: $(VMODTOOL) $(srcdir)/vmod_h2.vcc + @PYTHON@ $(VMODTOOL) $(vmodtoolargs_h2) $(srcdir)/vmod_h2.vcc + touch vcc_h2_if.c + +clean-local: clean-vmod-h2 + +clean-vmod-h2: + rm -f $(nodist_libvmod_h2_la_SOURCES) + rm -f vmod_h2.rst vmod_h2.man.rst diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc new file mode 100644 index 000000000..e6754fc84 --- /dev/null +++ b/vmod/tests/h2_b00000.vtc @@ -0,0 +1,90 @@ +varnishtest "VMOD h2 basics" + +varnish v1 -arg "-p feature=+http2" -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.http2-is = h2.is(); + set resp.body = ""; + return (deliver); + } +} -start + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == false +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == true + } -run +} -start + +client c1 -wait +client c2 -wait + +# coverage +varnish v1 -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.rapid-reset-o = h2.rapid_reset(10ms); + set resp.http.rapid-reset-n = h2.rapid_reset(); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); + set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); + set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); + set resp.http.rapid-reset-budget = h2.rapid_reset_budget(); + set resp.body = ""; + return (deliver); + } +} + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == -1.000 + expect resp.http.rapid-reset-n == -1.000 + expect resp.http.rapid-reset-limit-o == -1 + expect resp.http.rapid-reset-limit-n == -1 + expect resp.http.rapid-reset-period-o == -1.000 + expect resp.http.rapid-reset-period-n == -1.000 + expect resp.http.rapid-reset-budget == -1.000 +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == 1.000 + expect resp.http.rapid-reset-n == 0.010 + expect resp.http.rapid-reset-limit-o == 0 + expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-period-o == 60.000 + expect resp.http.rapid-reset-period-n == 10.000 + expect resp.http.rapid-reset-budget == 100.000 + } -run +} -start + +client c1 -wait +client c2 -wait diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c new file mode 100644 index 000000000..bded788f4 --- /dev/null +++ b/vmod/vmod_h2.c @@ -0,0 +1,100 @@ +/*- + * Copyright 2023 UPLEX - Nils Goroll Systemoptimierung + * All rights reserved. + * + * Author: Nils Goroll + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "config.h" + +#include "cache/cache_varnishd.h" + +#include "vcc_h2_if.h" + +#include "cache/cache_transport.h" +#include "http2/cache_http2.h" + +static struct h2_sess * +h2get(VRT_CTX) +{ + struct h2_sess *h2; + uintptr_t *up; + + CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req->transport != &HTTP2_transport) + return (NULL); + AZ(SES_Get_proto_priv(ctx->req->sp, &up)); + CAST_OBJ_NOTNULL(h2, (void *)*up, H2_SESS_MAGIC); + return (h2); +} +VCL_BOOL +vmod_is(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + return (h2 != NULL); +} + +#define GETSET(type, name, argname) \ +type \ +vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ +{ \ + struct h2_sess *h2 = h2get(ctx); \ + type r; \ + \ + if (h2 == NULL) \ + return (-1); \ + \ + if (! args->valid_ ## argname) \ + return (h2->name); \ + if (h2->name == args->argname) \ + return (h2->name); \ + \ + Lck_Lock(&h2->sess->mtx); \ + r = h2->name; \ + if (h2->name != args->argname) { \ + h2->name = args->argname; \ + h2->rst_budget = h2->rapid_reset_limit; \ + h2->last_rst = ctx->now; \ + } \ + Lck_Unlock(&h2->sess->mtx); \ + return (r); \ +} + +GETSET(VCL_DURATION, rapid_reset, threshold) +GETSET(VCL_INT, rapid_reset_limit, number) +GETSET(VCL_DURATION, rapid_reset_period, duration) + +VCL_REAL +vmod_rapid_reset_budget(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + if (h2 == NULL) + return (-1); + + return (h2->rst_budget); +} diff --git a/vmod/vmod_h2.vcc b/vmod/vmod_h2.vcc new file mode 100644 index 000000000..28f821fe7 --- /dev/null +++ b/vmod/vmod_h2.vcc @@ -0,0 +1,93 @@ +#- +# Copyright 2023 UPLEX - Nils Goroll Systemoptimierung +# All rights reserved. +# +# Author: Nils Goroll +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +$ABI strict +$Module h2 3 "Module to control the built-in HTTP2 transport" + +DESCRIPTION +=========== + +This VMOD contains functions to control the HTTP2 transport built into +Varnish-Cache. + +$Function BOOL is() +$Restrict client + +Returns true when called on a session handled by the built-in HTTP2 transport. + +$Function DURATION rapid_reset([DURATION threshold]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function INT rapid_reset_limit([INT number]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset_limit`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function DURATION rapid_reset_period([DURATION duration]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset_period`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function REAL rapid_reset_budget() +$Restrict client + +Return how many RST frames classified as "rapid" the client is still +allowed to send before the session is going to be closed. + +SEE ALSO +======== + +* :ref:`varnishd(1)` +* :ref:`vsl(7)` From nils.goroll at uplex.de Wed Oct 18 11:55:06 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 11:55:06 +0000 (UTC) Subject: [master] 0c166fb5c Start with a reasonable default for h2_rapid_reset_limit Message-ID: <20231018115506.62A8E10DA33@lists.varnish-cache.org> commit 0c166fb5cc04cb379f7e1b6089beba7e0f75a9cc Author: Nils Goroll Date: Wed Oct 18 13:53:53 2023 +0200 Start with a reasonable default for h2_rapid_reset_limit as agreed on IRC. diff --git a/include/tbl/params.h b/include/tbl/params.h index c369bc9e7..073e5be3b 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1281,7 +1281,7 @@ PARAM_SIMPLE( /* typ */ uint, /* min */ "0", /* max */ NULL, - /* def */ "0", + /* def */ "100", /* units */ NULL, /* descr */ "HTTP2 RST Allowance.\n" From nils.goroll at uplex.de Wed Oct 18 12:03:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 12:03:05 +0000 (UTC) Subject: [master] 1a406e3f9 Adjust test case to previous commit Message-ID: <20231018120305.79A4E10DF63@lists.varnish-cache.org> commit 1a406e3f9a085f9d9321242c94a99080eb2be525 Author: Nils Goroll Date: Wed Oct 18 14:01:33 2023 +0200 Adjust test case to previous commit (sorry) diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc index e6754fc84..aedb6aad8 100644 --- a/vmod/tests/h2_b00000.vtc +++ b/vmod/tests/h2_b00000.vtc @@ -48,7 +48,7 @@ varnish v1 -vcl { sub vcl_synth { set resp.http.rapid-reset-o = h2.rapid_reset(10ms); set resp.http.rapid-reset-n = h2.rapid_reset(); - set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(10); set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); @@ -78,11 +78,11 @@ client c2 { expect resp.status == 200 expect resp.http.rapid-reset-o == 1.000 expect resp.http.rapid-reset-n == 0.010 - expect resp.http.rapid-reset-limit-o == 0 - expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-limit-o == 100 + expect resp.http.rapid-reset-limit-n == 10 expect resp.http.rapid-reset-period-o == 60.000 expect resp.http.rapid-reset-period-n == 10.000 - expect resp.http.rapid-reset-budget == 100.000 + expect resp.http.rapid-reset-budget == 10.000 } -run } -start From nils.goroll at uplex.de Wed Oct 18 12:26:05 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 12:26:05 +0000 (UTC) Subject: [master] 3de57831b Changelog TLC Message-ID: <20231018122605.C921F10EBF8@lists.varnish-cache.org> commit 3de57831b5249df3b40e26f2a49c8e4f1f6e7996 Author: Nils Goroll Date: Wed Oct 18 14:24:56 2023 +0200 Changelog TLC diff --git a/doc/changes.rst b/doc/changes.rst index 72f2fa70c..11737f68a 100644 --- a/doc/changes.rst +++ b/doc/changes.rst @@ -41,6 +41,87 @@ Varnish Cache NEXT (2024-03-15) .. PLEASE keep this roughly in commit order as shown by git-log / tig (new to old) +* The ``vcl_req_reset`` feature (controllable through the ``feature`` + parameter, see `varnishd(1)`) has been added and enabled by default + to terminate client side VCL processing early when the client is + gone. + + *req_reset* events trigger a VCL failure and are reported to + `vsl(7)` as ``Timestamp: Reset`` and accounted to ``main.req_reset`` + in `vsc` as visible through ``varnishstat(1)``. + + In particular, this feature is used to reduce resource consumption + of HTTP/2 "rapid reset" attacks (see below). + + Note, in particular, that *req_reset* events may lead to client + tasks for which no VCL is called ever. Presumably, this is thus the + first time that valid `vcl(7)` client transactions may not contain + any ``VCL_call`` records. + +* Added mitigation options and visibility for HTTP/2 "rapid reset" + attacks (CVE-2023-44487_, 3996_, 3997_, 3998_, 3999_). + + Global rate limit controls have been added as parameters, which can + be overridden per HTTP/2 session from VCL using the new vmod ``h2``: + + * The ``h2_rapid_reset`` parameter and ``h2.rapid_reset()`` function + define a threshold duration for an ``RST_STREAM`` to be classified + as "rapid": If an ``RST_STREAM`` frame is parsed sooner than this + duration after a ``HEADERS`` frame, it is accounted against the + rate limit described below. + + The default is one second. + + * The ``h2_rapid_reset_limit`` parameter and + ``h2.rapid_reset_limit()`` function define how many "rapid" resets + may be received during the time span defined by the + ``h2_rapid_reset_period`` parameter / ``h2.rapid_reset_period()`` + function before the HTTP/2 connection is forcibly closed with a + ``GOAWAY`` and all ongoing VCL client tasks of the connection are + aborted. + + The defaults are 100 and 60 seconds, corresponding to an allowance + of 100 "rapid" resets per minute. + + * The ``h2.rapid_reset_budget()`` function can be used to query the + number of currently allowed "rapid" resets. + + * Sessions closed due to rapid reset rate limiting are reported as + ``SessClose RAPID_RESET`` in `vsl(7)` and accounted to + ``main.sc_rapid_reset`` in `vsc` as visible through + ``varnishstat(1)``. + +* The ``cli_limit`` parameter default has been increased from 48KB to + 64KB. + +* ``VSUB_closefrom()`` now falls back to the base implementation not + only if ``close_range()`` was determined to be unusable at compile + time, but also at run time. That is to say, even if + ``close_range()`` is compiled in, the fallback to the naive + implementation remains. + +* Fixed ``varnishd -I`` error reporting when a final newline or + carriage return is missing in the CLI command file (3995_). + +* Improved and updated the build system with respect to autoconf and + automake. + +* Improved ``VSB_tofile()`` error reporting, added support for partial + writes and support of VSBs larger than INT_MAX. + +* Improved HPACK header validation. + +* Fixed scopes of protected headers (3984_). + +.. _CVE-2023-44487: https://nvd.nist.gov/vuln/detail/CVE-2023-44487 + +.. _3984: https://github.com/varnishcache/varnish-cache/issues/3984 +.. _3995: https://github.com/varnishcache/varnish-cache/issues/3995 +.. _3996: https://github.com/varnishcache/varnish-cache/issues/3996 +.. _3997: https://github.com/varnishcache/varnish-cache/pull/3997 +.. _3998: https://github.com/varnishcache/varnish-cache/pull/3998 +.. _3999: https://github.com/varnishcache/varnish-cache/pull/3999 + ================================ Varnish Cache 7.4.0 (2023-09-15) ================================ From nils.goroll at uplex.de Wed Oct 18 13:18:04 2023 From: nils.goroll at uplex.de (Nils Goroll) Date: Wed, 18 Oct 2023 13:18:04 +0000 (UTC) Subject: [master] 1eb5600a3 Flexelinting Message-ID: <20231018131804.D33231107B4@lists.varnish-cache.org> commit 1eb5600a397ff80f87ac189e1673ed05d47f366e Author: Nils Goroll Date: Wed Oct 18 15:17:11 2023 +0200 Flexelinting we can not make the parameter const because API. diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c index bded788f4..45642f140 100644 --- a/vmod/vmod_h2.c +++ b/vmod/vmod_h2.c @@ -65,6 +65,8 @@ vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ struct h2_sess *h2 = h2get(ctx); \ type r; \ \ + (void)args; \ + \ if (h2 == NULL) \ return (-1); \ \ From dridi at varni.sh Wed Oct 18 14:52:30 2023 From: dridi at varni.sh (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 14:52:30 +0000 Subject: [master] 3de57831b Changelog TLC In-Reply-To: <20231018122605.C921F10EBF8@lists.varnish-cache.org> References: <20231018122605.C921F10EBF8@lists.varnish-cache.org> Message-ID: Some notes before we port the changes to 7.4 and 7.3. On Wed, Oct 18, 2023 at 12:26?PM Nils Goroll wrote: > > > commit 3de57831b5249df3b40e26f2a49c8e4f1f6e7996 > Author: Nils Goroll > Date: Wed Oct 18 14:24:56 2023 +0200 > > Changelog TLC > > diff --git a/doc/changes.rst b/doc/changes.rst > index 72f2fa70c..11737f68a 100644 > --- a/doc/changes.rst > +++ b/doc/changes.rst > @@ -41,6 +41,87 @@ Varnish Cache NEXT (2024-03-15) > .. PLEASE keep this roughly in commit order as shown by git-log / tig > (new to old) > > +* The ``vcl_req_reset`` feature (controllable through the ``feature`` > + parameter, see `varnishd(1)`) has been added and enabled by default > + to terminate client side VCL processing early when the client is > + gone. > + > + *req_reset* events trigger a VCL failure and are reported to > + `vsl(7)` as ``Timestamp: Reset`` and accounted to ``main.req_reset`` > + in `vsc` as visible through ``varnishstat(1)``. > + > + In particular, this feature is used to reduce resource consumption > + of HTTP/2 "rapid reset" attacks (see below). > + > + Note, in particular, that *req_reset* events may lead to client > + tasks for which no VCL is called ever. Presumably, this is thus the > + first time that valid `vcl(7)` client transactions may not contain > + any ``VCL_call`` records. Did you mean `vsl(7)` here? > +* Added mitigation options and visibility for HTTP/2 "rapid reset" > + attacks (CVE-2023-44487_, 3996_, 3997_, 3998_, 3999_). > + > + Global rate limit controls have been added as parameters, which can > + be overridden per HTTP/2 session from VCL using the new vmod ``h2``: > + > + * The ``h2_rapid_reset`` parameter and ``h2.rapid_reset()`` function > + define a threshold duration for an ``RST_STREAM`` to be classified > + as "rapid": If an ``RST_STREAM`` frame is parsed sooner than this > + duration after a ``HEADERS`` frame, it is accounted against the > + rate limit described below. > + > + The default is one second. > + > + * The ``h2_rapid_reset_limit`` parameter and > + ``h2.rapid_reset_limit()`` function define how many "rapid" resets > + may be received during the time span defined by the > + ``h2_rapid_reset_period`` parameter / ``h2.rapid_reset_period()`` > + function before the HTTP/2 connection is forcibly closed with a > + ``GOAWAY`` and all ongoing VCL client tasks of the connection are > + aborted. > + > + The defaults are 100 and 60 seconds, corresponding to an allowance > + of 100 "rapid" resets per minute. > + > + * The ``h2.rapid_reset_budget()`` function can be used to query the > + number of currently allowed "rapid" resets. > + > + * Sessions closed due to rapid reset rate limiting are reported as > + ``SessClose RAPID_RESET`` in `vsl(7)` and accounted to > + ``main.sc_rapid_reset`` in `vsc` as visible through > + ``varnishstat(1)``. > + > +* The ``cli_limit`` parameter default has been increased from 48KB to > + 64KB. The new items below are definitely not be in the 7.3 branch as of today. > +* ``VSUB_closefrom()`` now falls back to the base implementation not > + only if ``close_range()`` was determined to be unusable at compile > + time, but also at run time. That is to say, even if > + ``close_range()`` is compiled in, the fallback to the naive > + implementation remains. I think the new items below are not present in the 7.4 branch as of today. > +* Fixed ``varnishd -I`` error reporting when a final newline or > + carriage return is missing in the CLI command file (3995_). > + > +* Improved and updated the build system with respect to autoconf and > + automake. > + > +* Improved ``VSB_tofile()`` error reporting, added support for partial > + writes and support of VSBs larger than INT_MAX. > + > +* Improved HPACK header validation. > + > +* Fixed scopes of protected headers (3984_). > + > +.. _CVE-2023-44487: https://nvd.nist.gov/vuln/detail/CVE-2023-44487 > + > +.. _3984: https://github.com/varnishcache/varnish-cache/issues/3984 > +.. _3995: https://github.com/varnishcache/varnish-cache/issues/3995 > +.. _3996: https://github.com/varnishcache/varnish-cache/issues/3996 > +.. _3997: https://github.com/varnishcache/varnish-cache/pull/3997 > +.. _3998: https://github.com/varnishcache/varnish-cache/pull/3998 > +.. _3999: https://github.com/varnishcache/varnish-cache/pull/3999 > + > ================================ > Varnish Cache 7.4.0 (2023-09-15) > ================================ > _______________________________________________ > varnish-commit mailing list > varnish-commit at varnish-cache.org > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-commit From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:05 +0000 (UTC) Subject: [6.0] 48785ab38 vtc: mv t02025.vtc t02026.vtc Message-ID: <20231018152705.D77E41149C3@lists.varnish-cache.org> commit 48785ab386f81292edd037be5d7cd6f5ea256665 Author: Dridi Boukelmoune Date: Wed Oct 18 12:21:17 2023 +0200 vtc: mv t02025.vtc t02026.vtc Not sure why 6fbb937758dfa7ad131d5a40d2c9b7b5929dc7dd does not originate from trunk. diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02026.vtc similarity index 100% rename from bin/varnishtest/tests/t02025.vtc rename to bin/varnishtest/tests/t02026.vtc From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:05 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:05 +0000 (UTC) Subject: [6.0] 39331700f vtc: Avoid cycling the barrier in t02014 Message-ID: <20231018152705.EDA801149C6@lists.varnish-cache.org> commit 39331700f4ed930f9567fc1a9eaf6165f1adfc8d Author: Dridi Boukelmoune Date: Thu Oct 12 11:17:09 2023 +0200 vtc: Avoid cycling the barrier in t02014 It was particularly hard to follow once we reach client c3. diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index f47eed657..8add78a0d 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -1,6 +1,9 @@ varnishtest "Exercise h/2 sender flow control code" -barrier b1 sock 3 -cyclic +barrier b1 sock 3 +barrier b2 sock 3 +barrier b3 sock 3 +barrier b4 sock 3 server s1 { rxreq @@ -23,7 +26,9 @@ varnish v1 -vcl+backend { } sub vcl_deliver { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } } } -start @@ -43,7 +48,7 @@ client c1 { } -start stream 1 { - txreq + txreq -hdr barrier ${b1_sock} barrier b1 sync delay .5 txwinup -size 256 @@ -61,15 +66,15 @@ client c1 { client c2 { stream 0 { - barrier b1 sync + barrier b2 sync } -start stream 1 { - txreq + txreq -hdr barrier ${b2_sock} txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b2 sync } -run stream 0 -wait @@ -77,8 +82,8 @@ client c2 { client c3 { stream 0 { - barrier b1 sync - barrier b1 sync + barrier b3 sync + barrier b4 sync delay .5 txwinup -size 256 delay .5 @@ -89,17 +94,17 @@ client c3 { } -start stream 1 { - txreq -req "POST" -nostrend + txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b3 sync } -run stream 3 { - txreq - barrier b1 sync + txreq -hdr barrier ${b4_sock} + barrier b4 sync delay .5 txwinup -size 256 delay .5 From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:06 +0000 (UTC) Subject: [6.0] 2471c0ae8 transport: New poll method Message-ID: <20231018152706.169701149C9@lists.varnish-cache.org> commit 2471c0ae8f93771f436e80cba2b3378f0b387bac Author: Dridi Boukelmoune Date: Wed Oct 11 11:57:48 2023 +0200 transport: New poll method The goal is for top-level transports to report whether the client is still present or not. diff --git a/bin/varnishd/cache/cache_transport.h b/bin/varnishd/cache/cache_transport.h index 5da5e3501..85464111f 100644 --- a/bin/varnishd/cache/cache_transport.h +++ b/bin/varnishd/cache/cache_transport.h @@ -42,6 +42,7 @@ typedef void vtr_sess_panic_f (struct vsb *, const struct sess *); typedef void vtr_req_panic_f (struct vsb *, const struct req *); typedef void vtr_req_fail_f (struct req *, enum sess_close); typedef void vtr_reembark_f (struct worker *, struct req *); +typedef int vtr_poll_f (struct req *); typedef int vtr_minimal_response_f (struct req *, uint16_t status); struct transport { @@ -62,6 +63,7 @@ struct transport { vtr_sess_panic_f *sess_panic; vtr_req_panic_f *req_panic; vtr_reembark_f *reembark; + vtr_poll_f *poll; vtr_minimal_response_f *minimal_response; VTAILQ_ENTRY(transport) list; From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:06 +0000 (UTC) Subject: [6.0] d6b7866e6 vcl_vrt: Skip VCL execution if the client is gone Message-ID: <20231018152706.4812F1149CE@lists.varnish-cache.org> commit d6b7866e63b634a05268cce12640be25caffc394 Author: Dridi Boukelmoune Date: Wed Oct 11 19:51:58 2023 +0200 vcl_vrt: Skip VCL execution if the client is gone Once a client is reportedly gone, processing its VCL task(s) is just a waste of resources. The execution of client-facing VCL is intercepted and an artificial return(fail) is returned in that scenario. Thanks to the introduction of the universal return(fail) proper error handling and resource tear down is already in place, which makes this change safe modulus unknown bugs. This adds a circuit breaker anywhere in the client state machine where there is VCL execution. A new Reset time stamp is logged to convey when a task does not complete because the client is gone. This is a good complement to the walk away feature and its original circuit breaker for the waiting list, but this has not been integrated yet. While the request is technically failed, it won't increase the vcl_fail counter, and a new req_reset counter is incremented. This new behavior is guarded by a new vcl_req_reset feature flag, enabled by default. Refs #3835 Refs 61a15cbffe1141c13b87e30d48ce1402f84433bf Refs e5efc2c8dc0d003e5f0fa1a30b598f5949112897 Refs ba54dc919076b1ddb85434d886ce82a6553d926b Refs 6f50a00f80c7f74b2a8b18bb80593f58b74816fd Refs b8816994cfab58261d8000ea8e6941cb5de640fa Conflicts: bin/varnishd/cache/cache_vrt_vcl.c bin/varnishd/cache/cache_vcl_vrt.c bin/varnishd/mgt/mgt_param_bits.c include/tbl/params.h diff --git a/bin/varnishd/VSC_main.vsc b/bin/varnishd/VSC_main.vsc index d03144367..027245d88 100644 --- a/bin/varnishd/VSC_main.vsc +++ b/bin/varnishd/VSC_main.vsc @@ -330,6 +330,13 @@ Number of times an HTTP/2 stream was refused because the queue was too long already. See also parameter thread_queue_limit. +.. varnish_vsc:: req_reset + :group: wrk + :oneliner: Requests reset + + Number of times a client left before the VCL processing of its + requests completed. + .. varnish_vsc:: n_object :type: gauge :group: wrk diff --git a/bin/varnishd/cache/cache_vcl_vrt.c b/bin/varnishd/cache/cache_vcl_vrt.c index 5f3bfeec0..e35ae59f8 100644 --- a/bin/varnishd/cache/cache_vcl_vrt.c +++ b/bin/varnishd/cache/cache_vcl_vrt.c @@ -37,8 +37,10 @@ #include "cache_varnishd.h" #include "vcl.h" +#include "vtim.h" #include "cache_director.h" +#include "cache_transport.h" #include "cache_vcl.h" /*--------------------------------------------------------------------*/ @@ -338,6 +340,35 @@ VRT_rel_vcl(VRT_CTX, struct vclref **refp) * The workspace argument is where random VCL stuff gets space from. */ +static int +req_poll(struct worker *wrk, struct req *req) +{ + + CHECK_OBJ_NOTNULL(req->top, REQ_MAGIC); + CHECK_OBJ_NOTNULL(req->top->transport, TRANSPORT_MAGIC); + + /* NB: Since a fail transition leads to vcl_synth, the request may be + * short-circuited twice. + */ + if (req->req_reset) { + wrk->handling = VCL_RET_FAIL; + return (-1); + } + + if (!FEATURE(FEATURE_VCL_REQ_RESET)) + return (0); + if (req->top->transport->poll == NULL) + return (0); + if (req->top->transport->poll(req->top) >= 0) + return (0); + + VSLb_ts_req(req, "Reset", W_TIM_real(wrk)); + wrk->stats->req_reset++; + wrk->handling = VCL_RET_FAIL; + req->req_reset = 1; + return (-1); +} + static void vcl_call_method(struct worker *wrk, struct req *req, struct busyobj *bo, void *specific, unsigned method, vcl_func_f *func) @@ -351,6 +382,8 @@ vcl_call_method(struct worker *wrk, struct req *req, struct busyobj *bo, CHECK_OBJ_NOTNULL(req, REQ_MAGIC); CHECK_OBJ_NOTNULL(req->sp, SESS_MAGIC); CHECK_OBJ_NOTNULL(req->vcl, VCL_MAGIC); + if (req_poll(wrk, req)) + return; VCL_Req2Ctx(&ctx, req); } if (bo != NULL) { diff --git a/bin/varnishd/mgt/mgt_param_bits.c b/bin/varnishd/mgt/mgt_param_bits.c index 7ea66d7e1..2767ede0a 100644 --- a/bin/varnishd/mgt/mgt_param_bits.c +++ b/bin/varnishd/mgt/mgt_param_bits.c @@ -220,7 +220,12 @@ tweak_feature(struct vsb *vsb, const struct parspec *par, const char *arg) (void)par; if (arg != NULL && arg != JSON_FMT) { - if (!strcmp(arg, "none")) { + if (!strcmp(arg, "default")) { + AZ(bit_tweak(vsb, mgt_param.feature_bits, + FEATURE_Reserved, + "+vcl_req_reset", + feature_tags, "feature bit", "+")); + }else if (!strcmp(arg, "none")) { memset(mgt_param.feature_bits, 0, sizeof mgt_param.feature_bits); } else { @@ -272,6 +277,6 @@ struct parspec VSL_parspec[] = { #define FEATURE_BIT(U, l, d, ld) "\n\t" #l "\t" d #include "tbl/feature_bits.h" #undef FEATURE_BIT - , 0, "none", "" }, + , 0, "default", "" }, { NULL, NULL, NULL } }; diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index 4d01f5ba8..ec1814ff8 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -71,6 +71,10 @@ Resp Restart Client request is being restarted. +Reset + The client closed its connection or reset its stream. Request + processing is interrupted and considered failed. + Pipe handling timestamps ~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/include/tbl/feature_bits.h b/include/tbl/feature_bits.h index 23f1b01f8..844ecfa32 100644 --- a/include/tbl/feature_bits.h +++ b/include/tbl/feature_bits.h @@ -83,6 +83,12 @@ FEATURE_BIT(HTTP_DATE_POSTEL, http_date_postel, "like Date:, Last-Modified:, Expires: etc." ) +FEATURE_BIT(VCL_REQ_RESET, vcl_req_reset, + "Stop processing client VCL once the client is gone.", + "Stop processing client VCL once the client is gone. " + "When this happens MAIN.req_reset is incremented." +) + #undef FEATURE_BIT /*lint -restore */ diff --git a/include/tbl/req_flags.h b/include/tbl/req_flags.h index 2c0dbe803..3d3f05fdb 100644 --- a/include/tbl/req_flags.h +++ b/include/tbl/req_flags.h @@ -39,6 +39,7 @@ REQ_FLAG(is_hitpass, 1, 0, "") REQ_FLAG(waitinglist, 0, 0, "") REQ_FLAG(want100cont, 0, 0, "") REQ_FLAG(late100cont, 0, 0, "") +REQ_FLAG(req_reset, 0, 0, "") #undef REQ_FLAG /*lint -restore */ From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:06 +0000 (UTC) Subject: [6.0] 0eb427f1e http2_session: Implement transport polling Message-ID: <20231018152706.727F01149E3@lists.varnish-cache.org> commit 0eb427f1ea955e513a093f92fda81c74bb505046 Author: Dridi Boukelmoune Date: Wed Oct 11 12:38:21 2023 +0200 http2_session: Implement transport polling The error check is not performed in a critical section to avoid contention, at the risk of not seeing the error until the next transport poll. Conflicts: bin/varnishd/http2/cache_http2_session.c diff --git a/bin/varnishd/VSC_main.vsc b/bin/varnishd/VSC_main.vsc index 027245d88..8d6277ed7 100644 --- a/bin/varnishd/VSC_main.vsc +++ b/bin/varnishd/VSC_main.vsc @@ -335,7 +335,9 @@ :oneliner: Requests reset Number of times a client left before the VCL processing of its - requests completed. + requests completed. For HTTP/2 sessions, either the stream was + reset by an RST_STREAM frame from the client, or a stream or + connection error occurred. .. varnish_vsc:: n_object :type: gauge diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 8665761c3..add9b7d6c 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -442,6 +442,16 @@ h2_new_session(struct worker *wrk, void *arg) wrk->vsl = NULL; } +static int v_matchproto_(vtr_poll_f) +h2_poll(struct req *req) +{ + struct h2_req *r2; + + CHECK_OBJ_NOTNULL(req, REQ_MAGIC); + CAST_OBJ_NOTNULL(r2, req->transport_priv, H2_REQ_MAGIC); + return (r2->error ? -1 : 1); +} + struct transport H2_transport = { .name = "H2", .magic = TRANSPORT_MAGIC, @@ -451,4 +461,5 @@ struct transport H2_transport = { .req_body = h2_req_body, .req_fail = h2_req_fail, .sess_panic = h2_sess_panic, + .poll = h2_poll, }; diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index 8add78a0d..f4083c890 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -5,6 +5,9 @@ barrier b2 sock 3 barrier b3 sock 3 barrier b4 sock 3 +barrier b2_err cond 2 +barrier b3_err cond 2 + server s1 { rxreq txresp -bodylen 66300 @@ -64,6 +67,13 @@ client c1 { stream 0 -wait } -run +varnish v1 -vsl_catchup + +logexpect l2 -v v1 -g raw { + expect * * ReqMethod GET + expect * = VCL_call DELIVER +} -start + client c2 { stream 0 { barrier b2 sync @@ -71,6 +81,7 @@ client c2 { stream 1 { txreq -hdr barrier ${b2_sock} + barrier b2_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -78,7 +89,17 @@ client c2 { } -run stream 0 -wait -} -run +} -start + +logexpect l2 -wait +barrier b2_err sync + +client c2 -wait + +logexpect l3 -v v1 -g raw { + expect * * ReqMethod POST + expect * = VCL_call DELIVER +} -start client c3 { stream 0 { @@ -96,6 +117,7 @@ client c3 { stream 1 { txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" + barrier b3_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -117,4 +139,9 @@ client c3 { } -run stream 0 -wait -} -run +} -start + +logexpect l3 -wait +barrier b3_err sync + +client c3 -wait diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc new file mode 100644 index 000000000..578dbf5c8 --- /dev/null +++ b/bin/varnishtest/tests/t02025.vtc @@ -0,0 +1,52 @@ +varnishtest "h2 reset interrupt" + +barrier b1 sock 2 +barrier b2 sock 2 + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -vcl { + import vtc; + + backend be none; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + vtc.barrier_sync("${b2_sock}"); + } + + sub vcl_miss { + vtc.panic("unreachable"); + } +} -start + +logexpect l1 -v v1 -g raw -i Debug { + expect * * Debug "^H2RXF RST_STREAM" +} -start + +client c1 { + stream 1 { + txreq + barrier b1 sync + txrst + } -run + expect_close +} -start + +logexpect l1 -wait +barrier b2 sync + +client c1 -wait + +varnish v1 -vsl_catchup +varnish v1 -expect req_reset == 1 + +# NB: The varnishncsa command below shows a minimal pattern to collect +# "rapid reset" suspects per session, with the IP address. Here rapid +# is interpreted as before a second elapsed. Session VXIDs showing up +# numerous times become increasingly more suspicious. The format can of +# course be extended to add anything else useful for data mining. +shell -expect "1000 ${localhost}" { + varnishncsa -n ${v1_name} -d \ + -q 'Timestamp:Reset[2] < 1.0' -F '%{VSL:Begin[2]}x %h' +} diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index ec1814ff8..b52956226 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -72,7 +72,8 @@ Restart Client request is being restarted. Reset - The client closed its connection or reset its stream. Request + The client closed its connection, reset its stream or caused + a stream error that forced Varnish to reset the stream. Request processing is interrupted and considered failed. Pipe handling timestamps From dridi.boukelmoune at gmail.com Wed Oct 18 15:27:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 15:27:06 +0000 (UTC) Subject: [6.0] e66c57ce0 stevedore: Set up nuke_limit for buffer allocations Message-ID: <20231018152706.890A61149ED@lists.varnish-cache.org> commit e66c57ce0be12a539c05cad1c569b5f94c5c4c3c Author: Dridi Boukelmoune Date: Tue Aug 31 07:32:13 2021 +0200 stevedore: Set up nuke_limit for buffer allocations diff --git a/bin/varnishd/storage/stevedore.c b/bin/varnishd/storage/stevedore.c index a6c124fc4..1f79fca43 100644 --- a/bin/varnishd/storage/stevedore.c +++ b/bin/varnishd/storage/stevedore.c @@ -120,6 +120,7 @@ STV_AllocBuf(struct worker *wrk, const struct stevedore *stv, size_t size) if (stv->allocbuf == NULL) return (NULL); + wrk->strangelove = cache_param->nuke_limit; buf = stv->allocbuf(wrk, stv, size + PRNDUP(sizeof *stvbuf), &priv); if (buf == NULL) return (NULL); From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:07 +0000 (UTC) Subject: [6.0] 1c7ed345a vdef: implement vmin[_t], vmax[_t] and vlimit[_t] Message-ID: <20231018164007.76ED3117599@lists.varnish-cache.org> commit 1c7ed345aff32501909e769ca0727db9c4b1dfc9 Author: Asad Sajjad Ahmed Date: Tue Sep 28 14:18:50 2021 +0200 vdef: implement vmin[_t], vmax[_t] and vlimit[_t] This should make the code easier to read and stop us from being inconsistent. Signed-off-by: Asad Sajjad Ahmed diff --git a/include/vdef.h b/include/vdef.h index 60d833c33..128f44148 100644 --- a/include/vdef.h +++ b/include/vdef.h @@ -120,6 +120,55 @@ #define RDN2(x, y) ((x)&(~((uintptr_t)(y)-1UL))) /* PWR2(y) true */ #define RUP2(x, y) (((x)+((y)-1))&(~((uintptr_t)(y)-1UL))) /* PWR2(y) true */ +/********************************************************************** + * Find the minimum or maximum values. + * Only evaluate the expression once and perform type checking. + */ + +/* ref: https://stackoverflow.com/a/17624752 */ + +#define VINDIRECT(a, b, c) a ## b ## c +#define VCOMBINE(a, b, c) VINDIRECT(a, b, c) + +#if defined(__COUNTER__) +# define VUNIQ_NAME(base) VCOMBINE(base, __LINE__, __COUNTER__) +#else +# define VUNIQ_NAME(base) VCOMBINE(base, __LINE__, 0) +#endif + +/* ref: https://gcc.gnu.org/onlinedocs/gcc/Typeof.html */ + +#define _vmin(a, b, _va, _vb) \ +({ \ + typeof (a) _va = (a); \ + typeof (b) _vb = (b); \ + (void)(&_va == &_vb); \ + _va < _vb ? _va : _vb; \ +}) + +#define _vmax(a, b, _va, _vb) \ +({ \ + typeof (a) _va = (a); \ + typeof (b) _vb = (b); \ + (void)(&_va == &_vb); \ + _va > _vb ? _va : _vb; \ +}) + +#define vmin(a, b) _vmin((a), (b), VUNIQ_NAME(_vmina), \ + VUNIQ_NAME(_vminb)) +#define vmax(a, b) _vmax((a), (b), VUNIQ_NAME(_vmaxa), \ + VUNIQ_NAME(_vmaxb)) + +#define vmin_t(type, a, b) vmin((type)(a), (type)(b)) +#define vmax_t(type, a, b) vmax((type)(a), (type)(b)) + +/********************************************************************** + * Clamp the value between two limits. + */ + +#define vlimit(a, l, u) vmax((l), vmin((a), (u))) +#define vlimit_t(type, a, l, u) vmax_t(type, (l), vmin_t(type, (a), (u))) + /********************************************************************** * FlexeLint and compiler shutuppery */ From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:07 +0000 (UTC) Subject: [6.0] e55509391 h2: Add a rate limit facility for h/2 RST handling Message-ID: <20231018164007.97B7911759C@lists.varnish-cache.org> commit e555093912df07fd06ba8fb164517eb92267db3a Author: Dag Haavi Finstad Date: Wed Oct 11 15:16:36 2023 +0200 h2: Add a rate limit facility for h/2 RST handling This adds parameters h2_rapid_reset_limit and h2_rapid_reset_period, which govern the rate of which we permit clients to reset streams. If the limit is exceeded the connection is closed. Related to: #1851 Conflicts: include/tbl/params.h diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 533e00fa8..80e8a165d 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -193,6 +193,8 @@ struct h2_sess { h2_error error; int open_streams; + double rst_budget; + vtim_real last_rst; }; #define ASSERT_RXTHR(h2) do {assert(h2->rxthr == pthread_self());} while(0) diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index df3c041aa..514285213 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -314,9 +314,41 @@ h2_rx_push_promise(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) /********************************************************************** */ +static h2_error +h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) +{ + vtim_real now; + vtim_dur d; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + ASSERT_RXTHR(h2); + CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); + + if (cache_param->h2_rapid_reset_limit == 0) + return (0); + + now = VTIM_real(); + d = now - h2->last_rst; + h2->rst_budget += cache_param->h2_rapid_reset_limit * d / + cache_param->h2_rapid_reset_period; + h2->rst_budget = vmin_t(double, h2->rst_budget, + cache_param->h2_rapid_reset_limit); + h2->last_rst = now; + + if (h2->rst_budget < 1.0) { + Lck_Lock(&h2->sess->mtx); + VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_ENHANCE_YOUR_CALM); + } + h2->rst_budget -= 1.0; + return (0); +} + static h2_error v_matchproto_(h2_rxframe_f) h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) { + h2_error h2e; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); ASSERT_RXTHR(h2); @@ -326,8 +358,9 @@ h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (H2CE_FRAME_SIZE_ERROR); if (r2 == NULL) return (0); + h2e = h2_rapid_reset(wrk, h2, r2); h2_kill_req(wrk, h2, r2, h2_streamerror(vbe32dec(h2->rxf_data))); - return (0); + return (h2e); } /********************************************************************** diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index add9b7d6c..b45b6e3ac 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,6 +127,9 @@ h2_init_sess(const struct worker *wrk, struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; + h2->rst_budget = cache_param->h2_rapid_reset_limit; + h2->last_rst = sp->t_open; + AZ(isnan(h2->last_rst)); AZ(VHT_Init(h2->dectbl, h2->local_settings.header_table_size)); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc new file mode 100644 index 000000000..4d7ff8c51 --- /dev/null +++ b/bin/varnishtest/tests/r03996.vtc @@ -0,0 +1,56 @@ +varnishtest "h2 rapid reset" + +barrier b1 sock 2 -cyclic +barrier b2 sock 5 -cyclic + +server s1 { + rxreq + txresp +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -cliok "param.set h2_rapid_reset_limit 3" + +varnish v1 -vcl+backend { + import vtc; + + sub vcl_recv { + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } + vtc.barrier_sync("${b2_sock}"); + } + +} -start + +client c1 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + + stream 1 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 3 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 5 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 7 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + + barrier b2 sync + stream 0 -wait +} -run diff --git a/include/tbl/params.h b/include/tbl/params.h index 59280f9cc..914384357 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1896,6 +1896,38 @@ PARAM( ) #endif +PARAM( + /* name */ h2_rapid_reset_limit, + /* typ */ uint, + /* min */ "0", + /* max */ NULL, + /* default */ "0", + /* units */ NULL, + /* flags */ EXPERIMENTAL, + /* s-text */ + "HTTP2 RST Allowance.\n\n" + "Specifies the maximum number of allowed stream resets issued by " + "a client over a time period before the connection is closed. Setting " + "this parameter to 0 disables the limit.", + /* l-text */ "", + /* func */ NULL +) + + +PARAM( + /* name */ h2_rapid_reset_period, + /* typ */ timeout, + /* min */ "1.000", + /* max */ NULL, + /* default */ "60.000", + /* units */ "seconds", + /* flags */ EXPERIMENTAL|WIZARD, + /* s-text */ + "HTTP2 sliding window duration for h2_rapid_reset_limit.", + /* l-text */ "", + /* func */ NULL +) + #undef PARAM /*lint -restore */ From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:07 +0000 (UTC) Subject: [6.0] a76864184 Introduce RAPID_RESET as a sess_close reason Message-ID: <20231018164007.B84DB1175A0@lists.varnish-cache.org> commit a76864184a59d8094433699618d9527e3f3a2c1a Author: Dag Haavi Finstad Date: Tue Oct 17 11:20:11 2023 +0200 Introduce RAPID_RESET as a sess_close reason Conflicts: bin/varnishd/VSC_main.vsc include/tbl/sess_close.h diff --git a/bin/varnishd/VSC_main.vsc b/bin/varnishd/VSC_main.vsc index 8d6277ed7..4bb4697bf 100644 --- a/bin/varnishd/VSC_main.vsc +++ b/bin/varnishd/VSC_main.vsc @@ -601,6 +601,14 @@ Number of session closes with Error VCL_FAILURE (VCL failure) +.. varnish_vsc:: sc_rapid_reset + :level: diag + :oneliner: Session Err RAPID_RESET + + Number of times we failed an http/2 session because it hit its + configured limits for the number of permitted rapid stream + resets. + .. varnish_vsc:: client_resp_500 :level: diag :group: wrk diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 514285213..fc93d2b33 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -45,6 +45,7 @@ #include "vtcp.h" #include "vtim.h" +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1,r}}; #define H2EC2(U,v,r,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0,r}}; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) @@ -339,7 +340,7 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Lock(&h2->sess->mtx); VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); Lck_Unlock(&h2->sess->mtx); - return (H2CE_ENHANCE_YOUR_CALM); + return (H2CE_RAPID_RESET); } h2->rst_budget -= 1.0; return (0); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 4d7ff8c51..c9b1a4c37 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -54,3 +54,5 @@ client c1 { barrier b2 sync stream 0 -wait } -run + +varnish v1 -expect sc_rapid_reset == 1 diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index 7481b9836..8f3485c24 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -145,5 +145,17 @@ H2_ERROR( /* descr */ "Use HTTP/1.1 for the request" ) +#ifdef H2_CUSTOM_ERRORS +H2_ERROR( + /* name */ RAPID_RESET, + /* val */ 11, /* ENHANCE_YOUR_CALM */ + /* types */ 1, + /* reason */ SC_RAPID_RESET, + /* descr */ "http/2 rapid reset detected" +) + +# undef H2_CUSTOM_ERRORS +#endif + #undef H2_ERROR /*lint -restore */ diff --git a/include/tbl/sess_close.h b/include/tbl/sess_close.h index c20e71ca6..de130aa87 100644 --- a/include/tbl/sess_close.h +++ b/include/tbl/sess_close.h @@ -47,6 +47,7 @@ SESS_CLOSE(PIPE_OVERFLOW, pipe_overflow,1, "Session pipe overflow") SESS_CLOSE(RANGE_SHORT, range_short, 1, "Insufficient data for range") SESS_CLOSE(REQ_HTTP20, req_http20, 1, "HTTP2 not accepted") SESS_CLOSE(VCL_FAILURE, vcl_failure, 1, "VCL failure") +SESS_CLOSE(RAPID_RESET, rapid_reset, 1, "HTTP2 rapid reset") #undef SESS_CLOSE /*lint -restore */ From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:07 +0000 (UTC) Subject: [6.0] 9ce61daf2 Flexelinting Message-ID: <20231018164007.D130E1175A5@lists.varnish-cache.org> commit 9ce61daf266822ea19dcebf5ab9452815614ce87 Author: Poul-Henning Kamp Date: Tue Oct 17 14:35:22 2023 +0000 Flexelinting diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 80e8a165d..8fa1da610 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -47,6 +47,7 @@ struct h2_error_s { typedef const struct h2_error_s *h2_error; +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) extern const struct h2_error_s H2CE_##U[1]; #define H2EC2(U,v,r,d) extern const struct h2_error_s H2SE_##U[1]; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:07 +0000 (UTC) Subject: [6.0] 969c7e51f Add param h2_rapid_reset Message-ID: <20231018164007.EB7721175A9@lists.varnish-cache.org> commit 969c7e51fa1ec54ba6bc988c1c492c95020da31a Author: Dag Haavi Finstad Date: Mon Oct 16 15:56:37 2023 +0200 Add param h2_rapid_reset Only RST frames received earlier than this duration will be considered rapid. Includes backports of the following upstream doc-touchups: - 151f4d50f98ed43ad04b60208e65697ddb71dbf7 - 46d4f82386ab10ea4798637a70dc7122a9b81bba Conflicts: include/tbl/params.h diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index fc93d2b33..e6ac6a6c4 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -329,6 +329,11 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (0); now = VTIM_real(); + CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); + AN(r2->req->t_first); + if (now - r2->req->t_first > cache_param->h2_rapid_reset) + return (0); + d = now - h2->last_rst; h2->rst_budget += cache_param->h2_rapid_reset_limit * d / cache_param->h2_rapid_reset_period; diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index c9b1a4c37..d9493d1f9 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -11,6 +11,7 @@ server s1 { varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set h2_rapid_reset_limit 3" +varnish v1 -cliok "param.set h2_rapid_reset 5" varnish v1 -vcl+backend { import vtc; diff --git a/include/tbl/params.h b/include/tbl/params.h index 914384357..78a793470 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1896,6 +1896,24 @@ PARAM( ) #endif +PARAM( + /* name */ h2_rapid_reset, + /* typ */ timeout, + /* min */ "0", + /* max */ NULL, + /* default */ "1.0", + /* units */ "seconds", + /* flags */ EXPERIMENTAL, + /* s-text */ + "The upper threshold for how soon an http/2 RST_STREAM frame has " + "to be parsed after a HEADERS frame for it to be treated as " + "suspect and subjected to the rate limits specified by " + "h2_rapid_reset_limit and h2_rapid_reset_period.", + /* l-text */ "", + /* func */ NULL +) + + PARAM( /* name */ h2_rapid_reset_limit, /* typ */ uint, From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:08 +0000 (UTC) Subject: [6.0] ca9616443 h2: Set a default h2_rapid_reset_limit Message-ID: <20231018164008.117EA1175AD@lists.varnish-cache.org> commit ca9616443bb5b771fff9f531df5c291cc0bd9bbc Author: Dag Haavi Finstad Date: Wed Oct 18 14:14:52 2023 +0200 h2: Set a default h2_rapid_reset_limit diff --git a/include/tbl/params.h b/include/tbl/params.h index 78a793470..7b778820d 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1919,7 +1919,7 @@ PARAM( /* typ */ uint, /* min */ "0", /* max */ NULL, - /* default */ "0", + /* default */ "100", /* units */ NULL, /* flags */ EXPERIMENTAL, /* s-text */ From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:08 +0000 (UTC) Subject: [6.0] bdf0c89bd Copy rapid reset parameters to the h2 session Message-ID: <20231018164008.2D4C51175B1@lists.varnish-cache.org> commit bdf0c89bd05f6017345d094e5aa20c5bcf4e5a44 Author: Dag Haavi Finstad Date: Wed Oct 18 14:32:32 2023 +0200 Copy rapid reset parameters to the h2 session backport of f820f8016193d0aadbd8b2a52ff241a3145686f4 Conflicts: include/tbl/params.h diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 8fa1da610..4020b2887 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -192,8 +192,14 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; - int open_streams; + + // rst rate limit parameters, copied from h2_* parameters + vtim_dur rapid_reset; + int64_t rapid_reset_limit; + vtim_dur rapid_reset_period; + + // rst rate limit state double rst_budget; vtim_real last_rst; }; diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index e6ac6a6c4..afa9f03ef 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -325,20 +325,20 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) ASSERT_RXTHR(h2); CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); - if (cache_param->h2_rapid_reset_limit == 0) + if (h2->rapid_reset_limit == 0) return (0); now = VTIM_real(); CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); AN(r2->req->t_first); - if (now - r2->req->t_first > cache_param->h2_rapid_reset) + if (now - r2->req->t_first > h2->rapid_reset) return (0); d = now - h2->last_rst; - h2->rst_budget += cache_param->h2_rapid_reset_limit * d / - cache_param->h2_rapid_reset_period; + h2->rst_budget += h2->rapid_reset_limit * d / + h2->rapid_reset_period; h2->rst_budget = vmin_t(double, h2->rst_budget, - cache_param->h2_rapid_reset_limit); + h2->rapid_reset_limit); h2->last_rst = now; if (h2->rst_budget < 1.0) { diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index b45b6e3ac..06e625f33 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,7 +127,12 @@ h2_init_sess(const struct worker *wrk, struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; - h2->rst_budget = cache_param->h2_rapid_reset_limit; + + h2->rapid_reset = cache_param->h2_rapid_reset; + h2->rapid_reset_limit = cache_param->h2_rapid_reset_limit; + h2->rapid_reset_period = cache_param->h2_rapid_reset_period; + + h2->rst_budget = h2->rapid_reset_limit; h2->last_rst = sp->t_open; AZ(isnan(h2->last_rst)); diff --git a/include/tbl/params.h b/include/tbl/params.h index 7b778820d..665303db4 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1896,6 +1896,10 @@ PARAM( ) #endif +#define H2_RR_INFO \ + "Changes to this parameter affect the default for new HTTP2 " \ + "sessions." + PARAM( /* name */ h2_rapid_reset, /* typ */ timeout, @@ -1903,12 +1907,12 @@ PARAM( /* max */ NULL, /* default */ "1.0", /* units */ "seconds", - /* flags */ EXPERIMENTAL, + /* flags */ EXPERIMENTAL | DELAYED_EFFECT, /* s-text */ "The upper threshold for how soon an http/2 RST_STREAM frame has " "to be parsed after a HEADERS frame for it to be treated as " "suspect and subjected to the rate limits specified by " - "h2_rapid_reset_limit and h2_rapid_reset_period.", + "h2_rapid_reset_limit and h2_rapid_reset_period." H2_RR_INFO, /* l-text */ "", /* func */ NULL ) @@ -1921,12 +1925,12 @@ PARAM( /* max */ NULL, /* default */ "100", /* units */ NULL, - /* flags */ EXPERIMENTAL, + /* flags */ EXPERIMENTAL | DELAYED_EFFECT, /* s-text */ "HTTP2 RST Allowance.\n\n" "Specifies the maximum number of allowed stream resets issued by " "a client over a time period before the connection is closed. Setting " - "this parameter to 0 disables the limit.", + "this parameter to 0 disables the limit." H2_RR_INFO, /* l-text */ "", /* func */ NULL ) @@ -1939,9 +1943,9 @@ PARAM( /* max */ NULL, /* default */ "60.000", /* units */ "seconds", - /* flags */ EXPERIMENTAL|WIZARD, + /* flags */ EXPERIMENTAL | DELAYED_EFFECT | WIZARD, /* s-text */ - "HTTP2 sliding window duration for h2_rapid_reset_limit.", + "HTTP2 sliding window duration for h2_rapid_reset_limit." H2_RR_INFO, /* l-text */ "", /* func */ NULL ) From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:08 +0000 (UTC) Subject: [6.0] cfba2637e Add vmod_h2 to control rapid_reset parameters per session Message-ID: <20231018164008.49C611175BA@lists.varnish-cache.org> commit cfba2637e10f3b23db9fa301bb353fb74f207b01 Author: Dag Haavi Finstad Date: Wed Oct 18 15:17:27 2023 +0200 Add vmod_h2 to control rapid_reset parameters per session Backport of 2cfb561ed46a2db1e6c2ef9f88cbb8eebb792f25 and 1a406e3f9a085f9d9321242c94a99080eb2be525 Conflicts: bin/varnishtest/vmods.h configure.ac lib/Makefile.am diff --git a/bin/varnishtest/vmods.h b/bin/varnishtest/vmods.h index 06ab9b80c..81c12cbdb 100644 --- a/bin/varnishtest/vmods.h +++ b/bin/varnishtest/vmods.h @@ -35,3 +35,4 @@ VTC_VMOD(vtc) VTC_VMOD(blob) VTC_VMOD(unix) VTC_VMOD(proxy) +VTC_VMOD(h2) diff --git a/bin/varnishtest/vmodtests/h2/b00000.vtc b/bin/varnishtest/vmodtests/h2/b00000.vtc new file mode 100644 index 000000000..aedb6aad8 --- /dev/null +++ b/bin/varnishtest/vmodtests/h2/b00000.vtc @@ -0,0 +1,90 @@ +varnishtest "VMOD h2 basics" + +varnish v1 -arg "-p feature=+http2" -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.http2-is = h2.is(); + set resp.body = ""; + return (deliver); + } +} -start + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == false +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == true + } -run +} -start + +client c1 -wait +client c2 -wait + +# coverage +varnish v1 -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.rapid-reset-o = h2.rapid_reset(10ms); + set resp.http.rapid-reset-n = h2.rapid_reset(); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(10); + set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); + set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); + set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); + set resp.http.rapid-reset-budget = h2.rapid_reset_budget(); + set resp.body = ""; + return (deliver); + } +} + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == -1.000 + expect resp.http.rapid-reset-n == -1.000 + expect resp.http.rapid-reset-limit-o == -1 + expect resp.http.rapid-reset-limit-n == -1 + expect resp.http.rapid-reset-period-o == -1.000 + expect resp.http.rapid-reset-period-n == -1.000 + expect resp.http.rapid-reset-budget == -1.000 +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == 1.000 + expect resp.http.rapid-reset-n == 0.010 + expect resp.http.rapid-reset-limit-o == 100 + expect resp.http.rapid-reset-limit-n == 10 + expect resp.http.rapid-reset-period-o == 60.000 + expect resp.http.rapid-reset-period-n == 10.000 + expect resp.http.rapid-reset-budget == 10.000 + } -run +} -start + +client c1 -wait +client c2 -wait diff --git a/configure.ac b/configure.ac index b5e8b45ab..d7c7c33ae 100644 --- a/configure.ac +++ b/configure.ac @@ -784,6 +784,7 @@ AC_CONFIG_FILES([ lib/libvmod_blob/Makefile lib/libvmod_unix/Makefile lib/libvmod_proxy/Makefile + lib/libvmod_h2/Makefile man/Makefile varnishapi.pc varnishapi-uninstalled.pc diff --git a/lib/Makefile.am b/lib/Makefile.am index 907ee4a5e..986abf890 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -12,4 +12,5 @@ SUBDIRS = \ libvmod_vtc \ libvmod_blob \ libvmod_unix \ - libvmod_proxy + libvmod_proxy \ + libvmod_h2 diff --git a/lib/libvmod_h2/Makefile.am b/lib/libvmod_h2/Makefile.am new file mode 100644 index 000000000..5013d1de1 --- /dev/null +++ b/lib/libvmod_h2/Makefile.am @@ -0,0 +1,3 @@ + +libvmod_h2_la_SOURCES = vmod_h2.c +include $(srcdir)/automake_boilerplate.am diff --git a/lib/libvmod_h2/automake_boilerplate.am b/lib/libvmod_h2/automake_boilerplate.am new file mode 100644 index 000000000..cf7dc7b1b --- /dev/null +++ b/lib/libvmod_h2/automake_boilerplate.am @@ -0,0 +1,37 @@ + +# Boilerplate generated by vmodtool.py - changes will be overwritten + +AM_LDFLAGS = $(AM_LT_LDFLAGS) + +AM_CPPFLAGS = \ + -I$(top_srcdir)/include \ + -I$(top_srcdir)/bin/varnishd \ + -I$(top_builddir)/include + +vmoddir = $(pkglibdir)/vmods +vmodtool = $(top_srcdir)/lib/libvcc/vmodtool.py +vmodtoolargs = --strict --boilerplate + +vmod_LTLIBRARIES = libvmod_h2.la + +libvmod_h2_la_CFLAGS = + +libvmod_h2_la_LDFLAGS = \ + $(AM_LDFLAGS) \ + $(VMOD_LDFLAGS) + +nodist_libvmod_h2_la_SOURCES = vcc_if.c vcc_if.h + +$(libvmod_h2_la_OBJECTS): vcc_if.h + +vcc_if.h vmod_h2.rst vmod_h2.man.rst: vcc_if.c + +vcc_if.c: $(vmodtool) $(srcdir)/vmod.vcc + @PYTHON@ $(vmodtool) $(vmodtoolargs) $(srcdir)/vmod.vcc + +EXTRA_DIST = vmod.vcc automake_boilerplate.am + +CLEANFILES = $(builddir)/vcc_if.c $(builddir)/vcc_if.h \ + $(builddir)/vmod_h2.rst \ + $(builddir)/vmod_h2.man.rst + diff --git a/lib/libvmod_h2/vmod.vcc b/lib/libvmod_h2/vmod.vcc new file mode 100644 index 000000000..65702aaf6 --- /dev/null +++ b/lib/libvmod_h2/vmod.vcc @@ -0,0 +1,88 @@ +#- +# Copyright 2023 UPLEX - Nils Goroll Systemoptimierung +# All rights reserved. +# +# Author: Nils Goroll +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +$ABI strict +$Module h2 3 "Module to control the built-in HTTP2 transport" + +DESCRIPTION +=========== + +This VMOD contains functions to control the HTTP2 transport built into +Varnish-Cache. + +$Function BOOL is() + +Returns true when called on a session handled by the built-in HTTP2 transport. + +$Function DURATION rapid_reset([DURATION threshold]) + +Get and optionally set the ``h2_rapid_reset`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()` is reset. + +$Function INT rapid_reset_limit([INT number]) + +Get and optionally set the ``h2_rapid_reset_limit`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()` is reset. + +$Function DURATION rapid_reset_period([DURATION duration]) + +Get and optionally set the ``h2_rapid_reset_period`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()` is reset. + +$Function REAL rapid_reset_budget() + +Return how many RST frames classified as "rapid" the client is still +allowed to send before the session is going to be closed. + +SEE ALSO +======== + +* :ref:`varnishd(1)` +* :ref:`vsl(7)` diff --git a/lib/libvmod_h2/vmod_h2.c b/lib/libvmod_h2/vmod_h2.c new file mode 100644 index 000000000..2153e979e --- /dev/null +++ b/lib/libvmod_h2/vmod_h2.c @@ -0,0 +1,100 @@ +/*- + * Copyright 2023 UPLEX - Nils Goroll Systemoptimierung + * All rights reserved. + * + * Author: Nils Goroll + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "config.h" + +#include "cache/cache_varnishd.h" + +#include "vcc_if.h" + +#include "cache/cache_transport.h" +#include "http2/cache_http2.h" + +static struct h2_sess * +h2get(VRT_CTX) +{ + struct h2_sess *h2; + uintptr_t *up; + + CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req->transport != &H2_transport) + return (NULL); + AZ(SES_Get_proto_priv(ctx->req->sp, &up)); + CAST_OBJ_NOTNULL(h2, (void *)*up, H2_SESS_MAGIC); + return (h2); +} +VCL_BOOL +vmod_is(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + return (h2 != NULL); +} + +#define GETSET(type, name, argname) \ +type \ +vmod_ ## name(VRT_CTX, struct vmod_##name##_arg *args) \ +{ \ + struct h2_sess *h2 = h2get(ctx); \ + type r; \ + \ + if (h2 == NULL) \ + return (-1); \ + \ + if (! args->valid_ ## argname) \ + return (h2->name); \ + if (h2->name == args->argname) \ + return (h2->name); \ + \ + Lck_Lock(&h2->sess->mtx); \ + r = h2->name; \ + if (h2->name != args->argname) { \ + h2->name = args->argname; \ + h2->rst_budget = h2->rapid_reset_limit; \ + h2->last_rst = ctx->now; \ + } \ + Lck_Unlock(&h2->sess->mtx); \ + return (r); \ +} + +GETSET(VCL_DURATION, rapid_reset, threshold) +GETSET(VCL_INT, rapid_reset_limit, number) +GETSET(VCL_DURATION, rapid_reset_period, duration) + +VCL_REAL +vmod_rapid_reset_budget(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + if (h2 == NULL) + return (-1); + + return (h2->rst_budget); +} diff --git a/man/Makefile.am b/man/Makefile.am index 0e35dc5bf..1c2714872 100644 --- a/man/Makefile.am +++ b/man/Makefile.am @@ -21,7 +21,8 @@ dist_man_MANS = \ vmod_vtc.3 \ vmod_blob.3 \ vmod_unix.3 \ - vmod_proxy.3 + vmod_proxy.3 \ + vmod_h2.3 CLEANFILES = $(dist_man_MANS) @@ -109,4 +110,7 @@ vmod_unix.3: $(top_builddir)/lib/libvmod_unix/vmod_unix.man.rst vmod_proxy.3: $(top_builddir)/lib/libvmod_proxy/vmod_proxy.man.rst ${RST2MAN} $(RST2ANY_FLAGS) $? $@ +vmod_h2.3: $(top_builddir)/lib/libvmod_h2/vmod_h2.man.rst + ${RST2MAN} $(RST2ANY_FLAGS) $? $@ + .NOPATH: $(dist_man_MANS) From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:08 +0000 (UTC) Subject: [6.0] 0ecefa8f5 vmod_h2: VRT_fail if called outside of client context Message-ID: <20231018164008.63A401175C9@lists.varnish-cache.org> commit 0ecefa8f55adcac4b7455dc8b1b8c823d2fc122a Author: Dag Haavi Finstad Date: Wed Oct 18 15:32:32 2023 +0200 vmod_h2: VRT_fail if called outside of client context diff --git a/lib/libvmod_h2/vmod_h2.c b/lib/libvmod_h2/vmod_h2.c index 2153e979e..009aafc6f 100644 --- a/lib/libvmod_h2/vmod_h2.c +++ b/lib/libvmod_h2/vmod_h2.c @@ -43,7 +43,12 @@ h2get(VRT_CTX) uintptr_t *up; CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); - CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req == NULL) { + VRT_fail(ctx, + "vmod_h2 can only be called from client-side VCL."); + return (NULL); + } + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); if (ctx->req->transport != &H2_transport) return (NULL); AZ(SES_Get_proto_priv(ctx->req->sp, &up)); From dridi.boukelmoune at gmail.com Wed Oct 18 16:40:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 18 Oct 2023 16:40:08 +0000 (UTC) Subject: [6.0] b9ef357fd Flexelinting Message-ID: <20231018164008.7A62B1175DB@lists.varnish-cache.org> commit b9ef357fdc51e451d8efcf0f6b2a62d2759c66a6 Author: Nils Goroll Date: Wed Oct 18 15:17:11 2023 +0200 Flexelinting we can not make the parameter const because API. diff --git a/lib/libvmod_h2/vmod_h2.c b/lib/libvmod_h2/vmod_h2.c index 009aafc6f..cbab4d22e 100644 --- a/lib/libvmod_h2/vmod_h2.c +++ b/lib/libvmod_h2/vmod_h2.c @@ -70,6 +70,8 @@ vmod_ ## name(VRT_CTX, struct vmod_##name##_arg *args) \ struct h2_sess *h2 = h2get(ctx); \ type r; \ \ + (void)args; \ + \ if (h2 == NULL) \ return (-1); \ \ From phk at FreeBSD.org Fri Oct 20 09:20:11 2023 From: phk at FreeBSD.org (Poul-Henning Kamp) Date: Fri, 20 Oct 2023 09:20:11 +0000 (UTC) Subject: [master] 6df251006 OS/X's shell still (!) does not support -n on built-in echo Message-ID: <20231020092011.BC02211931C@lists.varnish-cache.org> commit 6df251006899ddd9410b34a60766995007fdec7b Author: Poul-Henning Kamp Date: Fri Oct 20 09:18:36 2023 +0000 OS/X's shell still (!) does not support -n on built-in echo diff --git a/bin/varnishtest/tests/u00000.vtc b/bin/varnishtest/tests/u00000.vtc index 831dd9eac..d3baa09d6 100644 --- a/bin/varnishtest/tests/u00000.vtc +++ b/bin/varnishtest/tests/u00000.vtc @@ -173,7 +173,7 @@ shell -err -expect {Cannot read -f file} { # Test that incomplete CLI commands in -I causes failure process p1 { - echo -n foobar > ${tmpdir}/_foobar + /bin/echo -n foobar > ${tmpdir}/_foobar exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 } -expect-exit 2 -start @@ -182,7 +182,7 @@ process p1 -screen-dump process p1 -wait process p2 { - echo 'foobar << blabla' > ${tmpdir}/_foobar + /bin/echo 'foobar << blabla' > ${tmpdir}/_foobar exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 } -expect-exit 2 -start From dridi.boukelmoune at gmail.com Mon Oct 23 05:56:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 05:56:08 +0000 (UTC) Subject: [master] 48c6140fc vtc_http2: Automatic stream identifier Message-ID: <20231023055608.A565B64DA5@lists.varnish-cache.org> commit 48c6140fcfca54a666f7c5c5334830683d25f361 Author: Dridi Boukelmoune Date: Fri Oct 20 18:53:26 2023 +0200 vtc_http2: Automatic stream identifier diff --git a/bin/varnishtest/tests/a02028.vtc b/bin/varnishtest/tests/a02028.vtc new file mode 100644 index 000000000..4ba8986ed --- /dev/null +++ b/bin/varnishtest/tests/a02028.vtc @@ -0,0 +1,24 @@ +varnishtest "Automatic stream numbers" + +server s1 { + loop 4 { + stream next { + rxreq + txresp + } -run + } +} -start + +client c1 -connect ${s1_sock} { + loop 3 { + stream next { + txreq + rxresp + } -run + } + + stream 7 { + txreq + rxresp + } -run +} -run diff --git a/bin/varnishtest/vtc_http.h b/bin/varnishtest/vtc_http.h index 432c8bb02..7a86de8da 100644 --- a/bin/varnishtest/vtc_http.h +++ b/bin/varnishtest/vtc_http.h @@ -86,6 +86,7 @@ struct http { pthread_t tp; VTAILQ_HEAD(, stream) streams; + unsigned last_stream; pthread_mutex_t mtx; pthread_cond_t cond; struct hpk_ctx *encctx; diff --git a/bin/varnishtest/vtc_http2.c b/bin/varnishtest/vtc_http2.c index 025c22340..0361b9e1a 100644 --- a/bin/varnishtest/vtc_http2.c +++ b/bin/varnishtest/vtc_http2.c @@ -2632,9 +2632,17 @@ stream_thread(void *priv) static struct stream * stream_new(const char *name, struct http *h) { - char *p; + char *p, buf[20]; struct stream *s; + if (!strcmp("next", name)) { + if (h->last_stream > 0) + bprintf(buf, "%d", h->last_stream + 2); + else + bprintf(buf, "%d", 1); + name = buf; + } + ALLOC_OBJ(s, STREAM_MAGIC); AN(s); PTOK(pthread_cond_init(&s->cond, NULL)); @@ -2656,6 +2664,7 @@ stream_new(const char *name, struct http *h) CHECK_OBJ_NOTNULL(h, HTTP_MAGIC); s->hp = h; + h->last_stream = s->id; //bprintf(s->connect, "%s", "${v1_sock}"); PTOK(pthread_mutex_lock(&h->mtx)); @@ -2761,7 +2770,8 @@ stream_run(struct stream *s) * stream ID [SPEC] [ACTION] * * ID is the HTTP/2 stream number, while SPEC describes what will be - * done in that stream. + * done in that stream. If ID has the value ``next``, the actual stream + * number is computed based on the last one. * * Note that, when parsing a stream action, if the entity isn't operating * in HTTP/2 mode, these spec is ran before:: @@ -2830,7 +2840,7 @@ cmd_stream(CMD_ARGS) continue; } if (**av == '-') - vtc_fatal(vl, "Unknown client argument: %s", *av); + vtc_fatal(vl, "Unknown stream argument: %s", *av); REPLACE(s->spec, *av); } } From dridi.boukelmoune at gmail.com Mon Oct 23 05:56:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 05:56:08 +0000 (UTC) Subject: [master] d17388f93 vtc: Simplify r3996 with automatic stream numbers Message-ID: <20231023055608.BF5E364DA8@lists.varnish-cache.org> commit d17388f93a2cde88a48951e4a255d3ee2b3ba337 Author: Dridi Boukelmoune Date: Mon Oct 23 07:52:53 2023 +0200 vtc: Simplify r3996 with automatic stream numbers diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 7faf78316..cb1936027 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -31,26 +31,13 @@ client c1 { expect goaway.err == ENHANCE_YOUR_CALM } -start - stream 1 { - txreq -hdr barrier ${b1_sock} - barrier b1 sync - txrst - } -run - stream 3 { - txreq -hdr barrier ${b1_sock} - barrier b1 sync - txrst - } -run - stream 5 { - txreq -hdr barrier ${b1_sock} - barrier b1 sync - txrst - } -run - stream 7 { - txreq -hdr barrier ${b1_sock} - barrier b1 sync - txrst - } -run + loop 4 { + stream next { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + } barrier b2 sync stream 0 -wait @@ -66,22 +53,12 @@ client c2 { expect goaway.err == ENHANCE_YOUR_CALM } -start - stream 1 { - txreq - txrst - } -run - stream 3 { - txreq - txrst - } -run - stream 5 { - txreq - txrst - } -run - stream 7 { - txreq - txrst - } -run + loop 4 { + stream next { + txreq + txrst + } -run + } barrier b2 sync stream 0 -wait From dridi at varni.sh Mon Oct 23 05:59:57 2023 From: dridi at varni.sh (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 05:59:57 +0000 Subject: [master] 6df251006 OS/X's shell still (!) does not support -n on built-in echo In-Reply-To: <20231020092011.BC02211931C@lists.varnish-cache.org> References: <20231020092011.BC02211931C@lists.varnish-cache.org> Message-ID: On Fri, Oct 20, 2023 at 9:20?AM Poul-Henning Kamp wrote: > > > commit 6df251006899ddd9410b34a60766995007fdec7b > Author: Poul-Henning Kamp > Date: Fri Oct 20 09:18:36 2023 +0000 > > OS/X's shell still (!) does not support -n on built-in echo There is no -n option in POSIX, and in fact echo has no options at all. > diff --git a/bin/varnishtest/tests/u00000.vtc b/bin/varnishtest/tests/u00000.vtc > index 831dd9eac..d3baa09d6 100644 > --- a/bin/varnishtest/tests/u00000.vtc > +++ b/bin/varnishtest/tests/u00000.vtc > @@ -173,7 +173,7 @@ shell -err -expect {Cannot read -f file} { > # Test that incomplete CLI commands in -I causes failure > > process p1 { > - echo -n foobar > ${tmpdir}/_foobar > + /bin/echo -n foobar > ${tmpdir}/_foobar Looks like a job for printf instead. > exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 > } -expect-exit 2 -start > > @@ -182,7 +182,7 @@ process p1 -screen-dump > process p1 -wait > > process p2 { > - echo 'foobar << blabla' > ${tmpdir}/_foobar > + /bin/echo 'foobar << blabla' > ${tmpdir}/_foobar > exec varnishd -n ${tmpdir}/v0 -d -a :0 -I ${tmpdir}/_foobar 2>&1 > } -expect-exit 2 -start > > _______________________________________________ > varnish-commit mailing list > varnish-commit at varnish-cache.org > https://www.varnish-cache.org/lists/mailman/listinfo/varnish-commit From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:07 +0000 (UTC) Subject: [7.4] ce3c6b500 Bump cli_limit to fit param.show -j with more parameters coming Message-ID: <20231023171807.B8867116D83@lists.varnish-cache.org> commit ce3c6b500cfdce3b07b97222c9d7d0cd5ace1487 Author: Nils Goroll Date: Mon Oct 16 19:14:56 2023 +0200 Bump cli_limit to fit param.show -j with more parameters coming diff --git a/include/tbl/params.h b/include/tbl/params.h index 83054eef3..cb7b7f5aa 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -316,7 +316,7 @@ PARAM_SIMPLE( /* type */ bytes_u, /* min */ "128b", /* max */ "99999999b", - /* def */ "48k", + /* def */ "64k", /* units */ "bytes", /* descr */ "Maximum size of CLI response. If the response exceeds this " From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:07 +0000 (UTC) Subject: [7.4] 9dda589ce h2: Add a rate limit facility for h/2 RST handling Message-ID: <20231023171808.01FDF116D87@lists.varnish-cache.org> commit 9dda589cedf00695b9c6573b6f1dfe5170e8a51d Author: Dag Haavi Finstad Date: Thu Oct 12 10:50:55 2023 +0200 h2: Add a rate limit facility for h/2 RST handling This adds parameters h2_rst_allowance and h2_rst_allowance_period, which govern the rate of which we allow clients to reset h/2 streams. If the limit is exceeded the connection is closed. Mitigates: #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index eb6e8f6a9..9457c99f2 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -193,6 +193,8 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + double rst_budget; + vtim_real last_rst; }; #define ASSERT_RXTHR(h2) do {assert(h2->rxthr == pthread_self());} while(0) diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index c62a8c429..272082498 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -320,9 +320,41 @@ h2_rx_push_promise(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) /********************************************************************** */ +static h2_error +h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) +{ + vtim_real now; + vtim_dur d; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + ASSERT_RXTHR(h2); + CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); + + if (cache_param->h2_rapid_reset_limit == 0) + return (0); + + now = VTIM_real(); + d = now - h2->last_rst; + h2->rst_budget += cache_param->h2_rapid_reset_limit * d / + cache_param->h2_rapid_reset_period; + h2->rst_budget = vmin_t(double, h2->rst_budget, + cache_param->h2_rapid_reset_limit); + h2->last_rst = now; + + if (h2->rst_budget < 1.0) { + Lck_Lock(&h2->sess->mtx); + VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_ENHANCE_YOUR_CALM); + } + h2->rst_budget -= 1.0; + return (0); +} + static h2_error v_matchproto_(h2_rxframe_f) h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) { + h2_error h2e; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); ASSERT_RXTHR(h2); @@ -332,8 +364,9 @@ h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (H2CE_FRAME_SIZE_ERROR); if (r2 == NULL) return (0); + h2e = h2_rapid_reset(wrk, h2, r2); h2_kill_req(wrk, h2, r2, h2_streamerror(vbe32dec(h2->rxf_data))); - return (0); + return (h2e); } /********************************************************************** diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index e3e3c116c..672b40d64 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,6 +127,9 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; + h2->rst_budget = cache_param->h2_rapid_reset_limit; + h2->last_rst = sp->t_open; + AZ(isnan(h2->last_rst)); AZ(VHT_Init(h2->dectbl, h2->local_settings.header_table_size)); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc new file mode 100644 index 000000000..5864c837f --- /dev/null +++ b/bin/varnishtest/tests/r03996.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 rapid reset" + +barrier b1 sock 5 + +server s1 { + rxreq + txresp +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -cliok "param.set h2_rapid_reset_limit 3" + +varnish v1 -vcl+backend { + import vtc; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + } + +} -start + +client c1 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + + stream 1 { + txreq + txrst + } -run + stream 3 { + txreq + txrst + } -run + stream 5 { + txreq + txrst + } -run + stream 7 { + txreq + txrst + } -run + + barrier b1 sync + stream 0 -wait +} -run + diff --git a/include/tbl/params.h b/include/tbl/params.h index cb7b7f5aa..cbea1bc31 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,34 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset_limit, + /* typ */ uint, + /* min */ "0", + /* max */ NULL, + /* def */ "0", + /* units */ NULL, + /* descr */ + "HTTP2 RST Allowance.\n" + "Specifies the maximum number of allowed stream resets issued by\n" + "a client over a time period before the connection is closed.\n" + "Setting this parameter to 0 disables the limit.", + /* flags */ EXPERIMENTAL, +) + +PARAM_SIMPLE( + /* name */ h2_rapid_reset_period, + /* typ */ timeout, + /* min */ "1.000", + /* max */ NULL, + /* def */ "60.000", + /* units */ "seconds", + /* descr */ + "HTTP2 sliding window duration for h2_rapid_reset_limit.", + /* flags */ EXPERIMENTAL|WIZARD, +) + + /*-------------------------------------------------------------------- * Memory pool parameters */ From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] 856e2fd00 Introduce RAPID_RESET as a sess_close reason Message-ID: <20231023171808.37275116D8C@lists.varnish-cache.org> commit 856e2fd00cd186e4adc7c6471a8ab43f1f457b73 Author: Dag Haavi Finstad Date: Tue Oct 17 11:20:11 2023 +0200 Introduce RAPID_RESET as a sess_close reason diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 272082498..a464a4508 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -46,6 +46,7 @@ #include "vtcp.h" #include "vtim.h" +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1,r}}; #define H2EC2(U,v,r,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0,r}}; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) @@ -345,7 +346,7 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Lock(&h2->sess->mtx); VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); Lck_Unlock(&h2->sess->mtx); - return (H2CE_ENHANCE_YOUR_CALM); + return (H2CE_RAPID_RESET); } h2->rst_budget -= 1.0; return (0); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 5864c837f..6feef4963 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -47,3 +47,4 @@ client c1 { stream 0 -wait } -run +varnish v1 -expect sc_rapid_reset == 1 diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index 2cd06f011..c6c6bed89 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -147,5 +147,17 @@ H2_ERROR( /* descr */ "Use HTTP/1.1 for the request" ) +#ifdef H2_CUSTOM_ERRORS +H2_ERROR( + /* name */ RAPID_RESET, + /* val */ 11, /* ENHANCE_YOUR_CALM */ + /* types */ 1, + /* reason */ SC_RAPID_RESET, + /* descr */ "http/2 rapid reset detected" +) + +# undef H2_CUSTOM_ERRORS +#endif + #undef H2_ERROR /*lint -restore */ diff --git a/include/tbl/sess_close.h b/include/tbl/sess_close.h index b91c93951..f15d34a64 100644 --- a/include/tbl/sess_close.h +++ b/include/tbl/sess_close.h @@ -50,6 +50,7 @@ SESS_CLOSE(PIPE_OVERFLOW, pipe_overflow,1, "Session pipe overflow") SESS_CLOSE(RANGE_SHORT, range_short, 1, "Insufficient data for range") SESS_CLOSE(REQ_HTTP20, req_http20, 1, "HTTP2 not accepted") SESS_CLOSE(VCL_FAILURE, vcl_failure, 1, "VCL failure") +SESS_CLOSE(RAPID_RESET, rapid_reset, 1, "HTTP2 rapid reset") #undef SESS_CLOSE /*lint -restore */ diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index a4049fccb..1f63b45a4 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -634,6 +634,14 @@ Number of session closes with Error VCL_FAILURE (VCL failure) +.. varnish_vsc:: sc_rapid_reset + :level: diag + :oneliner: Session Err RAPID_RESET + + Number of times we failed an http/2 session because it hit its + configured limits for the number of permitted rapid stream + resets. + .. varnish_vsc:: client_resp_500 :level: diag :group: wrk From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] 5eb4c5c6f Add param h2_rapid_reset Message-ID: <20231023171808.5CCB1116D92@lists.varnish-cache.org> commit 5eb4c5c6f9613944b1c896cb71802342c1debbe3 Author: Dag Haavi Finstad Date: Tue Oct 17 11:27:44 2023 +0200 Add param h2_rapid_reset Only RST frames received earlier than this duration will be considered rapid. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index a464a4508..50504c021 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -335,6 +335,11 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (0); now = VTIM_real(); + CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); + AN(r2->req->t_first); + if (now - r2->req->t_first > cache_param->h2_rapid_reset) + return (0); + d = now - h2->last_rst; h2->rst_budget += cache_param->h2_rapid_reset_limit * d / cache_param->h2_rapid_reset_period; diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 6feef4963..3fee3706c 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -10,6 +10,7 @@ server s1 { varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set h2_rapid_reset_limit 3" +varnish v1 -cliok "param.set h2_rapid_reset 5" varnish v1 -vcl+backend { import vtc; diff --git a/include/tbl/params.h b/include/tbl/params.h index cbea1bc31..530b60c39 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,20 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset, + /* typ */ timeout, + /* min */ "0.000", + /* max */ NULL, + /* def */ "1.000", + /* units */ "seconds", + /* descr */ + "The upper threshold for how rapid an http/2 RST has to come for " + "it to be treated as suspect and subjected to the rate limits " + "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + /* flags */ EXPERIMENTAL, +) + PARAM_SIMPLE( /* name */ h2_rapid_reset_limit, /* typ */ uint, @@ -1284,7 +1298,6 @@ PARAM_SIMPLE( /* flags */ EXPERIMENTAL|WIZARD, ) - /*-------------------------------------------------------------------- * Memory pool parameters */ From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] 56eded7f2 Polish h2_rapid_reset docs Message-ID: <20231023171808.7BB15116D96@lists.varnish-cache.org> commit 56eded7f256e163b1522bbb6af607b0dee901617 Author: Nils Goroll Date: Tue Oct 17 13:30:01 2023 +0200 Polish h2_rapid_reset docs diff --git a/include/tbl/params.h b/include/tbl/params.h index 530b60c39..bece5c83d 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1265,9 +1265,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come for " - "it to be treated as suspect and subjected to the rate limits " - "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + "The upper threshold for how rapid an http/2 RST has to come after " + "a HEADERS frame for it to be treated as suspect and subjected to " + "the rate limits specified by h2_rapid_reset_limit and " + "h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] cbadf102b Flexelinting Message-ID: <20231023171808.99091116D9A@lists.varnish-cache.org> commit cbadf102bc7b1bd5d695ba27fe27dc6bc9bad526 Author: Poul-Henning Kamp Date: Tue Oct 17 14:35:22 2023 +0000 Flexelinting diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 9457c99f2..65ea1d2df 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -49,6 +49,7 @@ struct h2_error_s { typedef const struct h2_error_s *h2_error; +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) extern const struct h2_error_s H2CE_##U[1]; #define H2EC2(U,v,r,d) extern const struct h2_error_s H2SE_##U[1]; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] 0e37f4f10 slinkified dridi-polish Message-ID: <20231023171808.CD18E116D9F@lists.varnish-cache.org> commit 0e37f4f10005bccc6dc6ed6ba9e6497370897883 Author: Nils Goroll Date: Tue Oct 17 18:29:43 2023 +0200 slinkified dridi-polish diff --git a/include/tbl/params.h b/include/tbl/params.h index bece5c83d..39cedbb13 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1265,10 +1265,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come after " - "a HEADERS frame for it to be treated as suspect and subjected to " - "the rate limits specified by h2_rapid_reset_limit and " - "h2_rapid_reset_period.", + "The upper threshold for how soon an http/2 RST_STREAM frame has " + "to be parsed after a HEADERS frame for it to be treated as " + "suspect and subjected to the rate limits specified by " + "h2_rapid_reset_limit and h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:08 +0000 (UTC) Subject: [7.4] 727882cd9 vtc: Avoid cycling the barrier in t02014 Message-ID: <20231023171808.F00A3116DA8@lists.varnish-cache.org> commit 727882cd92217ccde164b451b8f6eaee55027b71 Author: Dridi Boukelmoune Date: Thu Oct 12 11:17:09 2023 +0200 vtc: Avoid cycling the barrier in t02014 It was particularly hard to follow once we reach client c3. diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index f47eed657..8add78a0d 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -1,6 +1,9 @@ varnishtest "Exercise h/2 sender flow control code" -barrier b1 sock 3 -cyclic +barrier b1 sock 3 +barrier b2 sock 3 +barrier b3 sock 3 +barrier b4 sock 3 server s1 { rxreq @@ -23,7 +26,9 @@ varnish v1 -vcl+backend { } sub vcl_deliver { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } } } -start @@ -43,7 +48,7 @@ client c1 { } -start stream 1 { - txreq + txreq -hdr barrier ${b1_sock} barrier b1 sync delay .5 txwinup -size 256 @@ -61,15 +66,15 @@ client c1 { client c2 { stream 0 { - barrier b1 sync + barrier b2 sync } -start stream 1 { - txreq + txreq -hdr barrier ${b2_sock} txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b2 sync } -run stream 0 -wait @@ -77,8 +82,8 @@ client c2 { client c3 { stream 0 { - barrier b1 sync - barrier b1 sync + barrier b3 sync + barrier b4 sync delay .5 txwinup -size 256 delay .5 @@ -89,17 +94,17 @@ client c3 { } -start stream 1 { - txreq -req "POST" -nostrend + txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b3 sync } -run stream 3 { - txreq - barrier b1 sync + txreq -hdr barrier ${b4_sock} + barrier b4 sync delay .5 txwinup -size 256 delay .5 From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:09 +0000 (UTC) Subject: [7.4] a983f4b70 transport: New poll method Message-ID: <20231023171809.17511116DAF@lists.varnish-cache.org> commit a983f4b70b71959990ca5c800a48db80d476aa30 Author: Dridi Boukelmoune Date: Wed Oct 11 11:57:48 2023 +0200 transport: New poll method The goal is for top-level transports to report whether the client is still present or not. diff --git a/bin/varnishd/cache/cache_transport.h b/bin/varnishd/cache/cache_transport.h index 0e5f03c65..79f0a7b2d 100644 --- a/bin/varnishd/cache/cache_transport.h +++ b/bin/varnishd/cache/cache_transport.h @@ -44,6 +44,7 @@ typedef void vtr_sess_panic_f (struct vsb *, const struct sess *); typedef void vtr_req_panic_f (struct vsb *, const struct req *); typedef void vtr_req_fail_f (struct req *, stream_close_t); typedef void vtr_reembark_f (struct worker *, struct req *); +typedef int vtr_poll_f (struct req *); typedef int vtr_minimal_response_f (struct req *, uint16_t status); struct transport { @@ -64,6 +65,7 @@ struct transport { vtr_sess_panic_f *sess_panic; vtr_req_panic_f *req_panic; vtr_reembark_f *reembark; + vtr_poll_f *poll; vtr_minimal_response_f *minimal_response; VTAILQ_ENTRY(transport) list; From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:09 +0000 (UTC) Subject: [7.4] 2c5b14ac2 vcl_vrt: Skip VCL execution if the client is gone Message-ID: <20231023171809.485EE116DC5@lists.varnish-cache.org> commit 2c5b14ac2f2983ad1aecf5cc60563fe24cf94406 Author: Dridi Boukelmoune Date: Wed Oct 11 19:51:58 2023 +0200 vcl_vrt: Skip VCL execution if the client is gone Once a client is reportedly gone, processing its VCL task(s) is just a waste of resources. The execution of client-facing VCL is intercepted and an artificial return(fail) is returned in that scenario. Thanks to the introduction of the universal return(fail) proper error handling and resource tear down is already in place, which makes this change safe modulus unknown bugs. This adds a circuit breaker anywhere in the client state machine where there is VCL execution. A new Reset time stamp is logged to convey when a task does not complete because the client is gone. This is a good complement to the walk away feature and its original circuit breaker for the waiting list, but this has not been integrated yet. While the request is technically failed, it won't increase the vcl_fail counter, and a new req_reset counter is incremented. This new behavior is guarded by a new vcl_req_reset feature flag, enabled by default. Refs #3835 Refs 61a15cbffe1141c13b87e30d48ce1402f84433bf Refs e5efc2c8dc0d003e5f0fa1a30b598f5949112897 Refs ba54dc919076b1ddb85434d886ce82a6553d926b Refs 6f50a00f80c7f74b2a8b18bb80593f58b74816fd Refs b8816994cfab58261d8000ea8e6941cb5de640fa diff --git a/bin/varnishd/cache/cache_vrt_vcl.c b/bin/varnishd/cache/cache_vrt_vcl.c index c98274e9d..85b594b7d 100644 --- a/bin/varnishd/cache/cache_vrt_vcl.c +++ b/bin/varnishd/cache/cache_vrt_vcl.c @@ -42,6 +42,7 @@ #include "vbm.h" #include "cache_director.h" +#include "cache_transport.h" #include "cache_vcl.h" #include "vcc_interface.h" @@ -521,6 +522,40 @@ VRT_VCL_Allow_Discard(struct vclref **refp) FREE_OBJ(ref); } +/*-------------------------------------------------------------------- + */ + +static int +req_poll(struct worker *wrk, struct req *req) +{ + struct req *top; + + /* NB: Since a fail transition leads to vcl_synth, the request may be + * short-circuited twice. + */ + if (req->req_reset) { + wrk->vpi->handling = VCL_RET_FAIL; + return (-1); + } + + top = req->top->topreq; + CHECK_OBJ_NOTNULL(top, REQ_MAGIC); + CHECK_OBJ_NOTNULL(top->transport, TRANSPORT_MAGIC); + + if (!FEATURE(FEATURE_VCL_REQ_RESET)) + return (0); + if (top->transport->poll == NULL) + return (0); + if (top->transport->poll(top) >= 0) + return (0); + + VSLb_ts_req(req, "Reset", W_TIM_real(wrk)); + wrk->stats->req_reset++; + wrk->vpi->handling = VCL_RET_FAIL; + req->req_reset = 1; + return (-1); +} + /*-------------------------------------------------------------------- * Method functions to call into VCL programs. * @@ -552,6 +587,8 @@ vcl_call_method(struct worker *wrk, struct req *req, struct busyobj *bo, CHECK_OBJ_NOTNULL(req->sp, SESS_MAGIC); CHECK_OBJ_NOTNULL(req->vcl, VCL_MAGIC); CHECK_OBJ_NOTNULL(req->top, REQTOP_MAGIC); + if (req_poll(wrk, req)) + return; VCL_Req2Ctx(&ctx, req); } assert(ctx.now != 0); diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index e8ea7a36d..d8b440a08 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -76,6 +76,10 @@ Resp Restart Client request is being restarted. +Reset + The client closed its connection or reset its stream. Request + processing is interrupted and considered failed. + Pipe handling timestamps ~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/include/tbl/feature_bits.h b/include/tbl/feature_bits.h index 1ff2a361f..808efe917 100644 --- a/include/tbl/feature_bits.h +++ b/include/tbl/feature_bits.h @@ -91,6 +91,11 @@ FEATURE_BIT(TRACE, trace, "Required for tracing vcl_init / vcl_fini" ) +FEATURE_BIT(VCL_REQ_RESET, vcl_req_reset, + "Stop processing client VCL once the client is gone. " + "When this happens MAIN.req_reset is incremented." +) + #undef FEATURE_BIT /*lint -restore */ diff --git a/include/tbl/params.h b/include/tbl/params.h index 39cedbb13..ae622e53d 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1824,7 +1824,9 @@ PARAM_PRE PARAM_BITS( /* name */ feature, /* fld */ feature_bits, - /* def */ "+validate_headers", + /* def */ + "+validate_headers," + "+vcl_req_reset", /* descr */ "Enable/Disable various minor features.\n" "\tdefault\tSet default value\n" diff --git a/include/tbl/req_flags.h b/include/tbl/req_flags.h index 88eaff639..6a9e6acbb 100644 --- a/include/tbl/req_flags.h +++ b/include/tbl/req_flags.h @@ -40,6 +40,7 @@ REQ_FLAG(is_hit, 0, 0, "") REQ_FLAG(waitinglist, 0, 0, "") REQ_FLAG(want100cont, 0, 0, "") REQ_FLAG(late100cont, 0, 0, "") +REQ_FLAG(req_reset, 0, 0, "") #define REQ_BEREQ_FLAG(lower, vcl_r, vcl_w, doc) \ REQ_FLAG(lower, vcl_r, vcl_w, doc) #include "tbl/req_bereq_flags.h" diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 1f63b45a4..13c35d9be 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -345,6 +345,13 @@ Number of times an HTTP/2 stream was refused because the queue was too long already. See also parameter thread_queue_limit. +.. varnish_vsc:: req_reset + :group: wrk + :oneliner: Requests reset + + Number of times a client left before the VCL processing of its + requests completed. + .. varnish_vsc:: n_object :type: gauge :group: wrk From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:09 +0000 (UTC) Subject: [7.4] 6ecc9eccb http2_session: Implement transport polling Message-ID: <20231023171809.8A95C116DD9@lists.varnish-cache.org> commit 6ecc9eccb6c9b733684a6ad304ee6d9cd1e7fd2c Author: Dridi Boukelmoune Date: Wed Oct 11 12:38:21 2023 +0200 http2_session: Implement transport polling The error check is not performed in a critical section to avoid contention, at the risk of not seeing the error until the next transport poll. diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 672b40d64..ef0d88ede 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -441,6 +441,16 @@ h2_new_session(struct worker *wrk, void *arg) wrk->vsl = NULL; } +static int v_matchproto_(vtr_poll_f) +h2_poll(struct req *req) +{ + struct h2_req *r2; + + CHECK_OBJ_NOTNULL(req, REQ_MAGIC); + CAST_OBJ_NOTNULL(r2, req->transport_priv, H2_REQ_MAGIC); + return (r2->error ? -1 : 1); +} + struct transport HTTP2_transport = { .name = "HTTP/2", .magic = TRANSPORT_MAGIC, @@ -450,4 +460,5 @@ struct transport HTTP2_transport = { .req_body = h2_req_body, .req_fail = h2_req_fail, .sess_panic = h2_sess_panic, + .poll = h2_poll, }; diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index 8add78a0d..f4083c890 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -5,6 +5,9 @@ barrier b2 sock 3 barrier b3 sock 3 barrier b4 sock 3 +barrier b2_err cond 2 +barrier b3_err cond 2 + server s1 { rxreq txresp -bodylen 66300 @@ -64,6 +67,13 @@ client c1 { stream 0 -wait } -run +varnish v1 -vsl_catchup + +logexpect l2 -v v1 -g raw { + expect * * ReqMethod GET + expect * = VCL_call DELIVER +} -start + client c2 { stream 0 { barrier b2 sync @@ -71,6 +81,7 @@ client c2 { stream 1 { txreq -hdr barrier ${b2_sock} + barrier b2_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -78,7 +89,17 @@ client c2 { } -run stream 0 -wait -} -run +} -start + +logexpect l2 -wait +barrier b2_err sync + +client c2 -wait + +logexpect l3 -v v1 -g raw { + expect * * ReqMethod POST + expect * = VCL_call DELIVER +} -start client c3 { stream 0 { @@ -96,6 +117,7 @@ client c3 { stream 1 { txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" + barrier b3_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -117,4 +139,9 @@ client c3 { } -run stream 0 -wait -} -run +} -start + +logexpect l3 -wait +barrier b3_err sync + +client c3 -wait diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc new file mode 100644 index 000000000..3b7e90e8a --- /dev/null +++ b/bin/varnishtest/tests/t02025.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 reset interrupt" + +barrier b1 sock 2 +barrier b2 sock 2 + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -vcl { + import vtc; + + backend be none; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + vtc.barrier_sync("${b2_sock}"); + } + + sub vcl_miss { + vtc.panic("unreachable"); + } +} -start + +logexpect l1 -v v1 -g raw -i Debug { + expect * * Debug "^H2RXF RST_STREAM" +} -start + +client c1 { + stream 1 { + txreq + barrier b1 sync + txrst + } -run +} -start + +logexpect l1 -wait +barrier b2 sync + +varnish v1 -vsl_catchup +varnish v1 -expect req_reset == 1 + +# NB: The varnishncsa command below shows a minimal pattern to collect +# "rapid reset" suspects per session, with the IP address. Here rapid +# is interpreted as before a second elapsed. Session VXIDs showing up +# numerous times become increasingly more suspicious. The format can of +# course be extended to add anything else useful for data mining. +shell -expect "1000 ${localhost}" { + varnishncsa -n ${v1_name} -d \ + -q 'Timestamp:Reset[2] < 1.0' -F '%{VSL:Begin[2]}x %h' +} diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index d8b440a08..98c126d2d 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -77,7 +77,8 @@ Restart Client request is being restarted. Reset - The client closed its connection or reset its stream. Request + The client closed its connection, reset its stream or caused + a stream error that forced Varnish to reset the stream. Request processing is interrupted and considered failed. Pipe handling timestamps diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 13c35d9be..14f3e266f 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -350,7 +350,9 @@ :oneliner: Requests reset Number of times a client left before the VCL processing of its - requests completed. + requests completed. For HTTP/2 sessions, either the stream was + reset by an RST_STREAM frame from the client, or a stream or + connection error occurred. .. varnish_vsc:: n_object :type: gauge From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:09 +0000 (UTC) Subject: [7.4] b27f5085f vtc: Stabilize r3996 and increase coverage Message-ID: <20231023171809.B5409116DEA@lists.varnish-cache.org> commit b27f5085fc0f71d75ebb74a5aff3819eb8cd006a Author: Dridi Boukelmoune Date: Wed Oct 18 11:02:48 2023 +0200 vtc: Stabilize r3996 and increase coverage With #3998 we need to ensure streams are not going to skip vcl_recv if reset faster than reaching this step for the request task. The alternative to prevent the vcl_req_reset feature from interfering is to simply disable it. diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 3fee3706c..7faf78316 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -1,6 +1,7 @@ varnishtest "h2 rapid reset" -barrier b1 sock 5 +barrier b1 sock 2 -cyclic +barrier b2 sock 5 -cyclic server s1 { rxreq @@ -16,7 +17,10 @@ varnish v1 -vcl+backend { import vtc; sub vcl_recv { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } + vtc.barrier_sync("${b2_sock}"); } } -start @@ -27,6 +31,41 @@ client c1 { expect goaway.err == ENHANCE_YOUR_CALM } -start + stream 1 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 3 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 5 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 7 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + + barrier b2 sync + stream 0 -wait +} -run + +varnish v1 -expect sc_rapid_reset == 1 + +varnish v1 -cliok "param.set feature -vcl_req_reset" + +client c2 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + stream 1 { txreq txrst @@ -44,8 +83,8 @@ client c1 { txrst } -run - barrier b1 sync + barrier b2 sync stream 0 -wait } -run -varnish v1 -expect sc_rapid_reset == 1 +varnish v1 -expect sc_rapid_reset == 2 From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:09 +0000 (UTC) Subject: [7.4] e3847e11a vtc: Missing synchronization in t02025 Message-ID: <20231023171809.D53A1116E00@lists.varnish-cache.org> commit e3847e11aa9f64d7e8f2a1dc19e93102dbe78ce7 Author: Dridi Boukelmoune Date: Wed Oct 18 13:23:15 2023 +0200 vtc: Missing synchronization in t02025 Noticed while porting #3998 to the 6.0 branch with a varnishtest more sensitive to timing. diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc index 3b7e90e8a..578dbf5c8 100644 --- a/bin/varnishtest/tests/t02025.vtc +++ b/bin/varnishtest/tests/t02025.vtc @@ -30,11 +30,14 @@ client c1 { barrier b1 sync txrst } -run + expect_close } -start logexpect l1 -wait barrier b2 sync +client c1 -wait + varnish v1 -vsl_catchup varnish v1 -expect req_reset == 1 From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] e12a088c4 Copy rapid reset parameters to the h2 session Message-ID: <20231023171810.06EE9116E0F@lists.varnish-cache.org> commit e12a088c44ed68586b67c530eed89469ed0da2a7 Author: Nils Goroll Date: Tue Oct 17 13:47:39 2023 +0200 Copy rapid reset parameters to the h2 session This will allow per-session adjustments and also significantly lower the risk of inconsistent calculations in the rate limit code during parameter changes. Ref #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 65ea1d2df..ca2e65993 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -194,6 +194,13 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + + // rst rate limit parameters, copied from h2_* parameters + vtim_dur rapid_reset; + int64_t rapid_reset_limit; + vtim_dur rapid_reset_period; + + // rst rate limit state double rst_budget; vtim_real last_rst; }; diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 50504c021..edcc709d9 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -331,20 +331,20 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) ASSERT_RXTHR(h2); CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); - if (cache_param->h2_rapid_reset_limit == 0) + if (h2->rapid_reset_limit == 0) return (0); now = VTIM_real(); CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); AN(r2->req->t_first); - if (now - r2->req->t_first > cache_param->h2_rapid_reset) + if (now - r2->req->t_first > h2->rapid_reset) return (0); d = now - h2->last_rst; - h2->rst_budget += cache_param->h2_rapid_reset_limit * d / - cache_param->h2_rapid_reset_period; + h2->rst_budget += h2->rapid_reset_limit * d / + h2->rapid_reset_period; h2->rst_budget = vmin_t(double, h2->rst_budget, - cache_param->h2_rapid_reset_limit); + h2->rapid_reset_limit); h2->last_rst = now; if (h2->rst_budget < 1.0) { diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index ef0d88ede..acbfdbb51 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,7 +127,12 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; - h2->rst_budget = cache_param->h2_rapid_reset_limit; + + h2->rapid_reset = cache_param->h2_rapid_reset; + h2->rapid_reset_limit = cache_param->h2_rapid_reset_limit; + h2->rapid_reset_period = cache_param->h2_rapid_reset_period; + + h2->rst_budget = h2->rapid_reset_limit; h2->last_rst = sp->t_open; AZ(isnan(h2->last_rst)); diff --git a/include/tbl/params.h b/include/tbl/params.h index ae622e53d..003f08d2a 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1257,6 +1257,8 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +#define H2_RR_INFO \ + "Changes to this parameter affect the default for new HTTP2 sessions" PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, @@ -1268,8 +1270,8 @@ PARAM_SIMPLE( "The upper threshold for how soon an http/2 RST_STREAM frame has " "to be parsed after a HEADERS frame for it to be treated as " "suspect and subjected to the rate limits specified by " - "h2_rapid_reset_limit and h2_rapid_reset_period.", - /* flags */ EXPERIMENTAL, + "h2_rapid_reset_limit and h2_rapid_reset_period.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1283,8 +1285,8 @@ PARAM_SIMPLE( "HTTP2 RST Allowance.\n" "Specifies the maximum number of allowed stream resets issued by\n" "a client over a time period before the connection is closed.\n" - "Setting this parameter to 0 disables the limit.", - /* flags */ EXPERIMENTAL, + "Setting this parameter to 0 disables the limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1295,8 +1297,8 @@ PARAM_SIMPLE( /* def */ "60.000", /* units */ "seconds", /* descr */ - "HTTP2 sliding window duration for h2_rapid_reset_limit.", - /* flags */ EXPERIMENTAL|WIZARD, + "HTTP2 sliding window duration for h2_rapid_reset_limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT|WIZARD, ) /*-------------------------------------------------------------------- From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] b0301c538 Add vmod_h2 to control rapid_reset parameters per session Message-ID: <20231023171810.37EDF116E23@lists.varnish-cache.org> commit b0301c5381373fbd8cf4d5299e27dffd1c70fbb2 Author: Nils Goroll Date: Mon Oct 16 16:07:05 2023 +0200 Add vmod_h2 to control rapid_reset parameters per session diff --git a/include/tbl/params.h b/include/tbl/params.h index 003f08d2a..c369bc9e7 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1258,7 +1258,9 @@ PARAM_SIMPLE( ) #define H2_RR_INFO \ - "Changes to this parameter affect the default for new HTTP2 sessions" + "Changes to this parameter affect the default for new HTTP2 " \ + "sessions. vmod_h2(3) can be used to adjust it from VCL." + PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, diff --git a/vmod/Makefile.am b/vmod/Makefile.am index 694e6c284..eab8cb0c2 100644 --- a/vmod/Makefile.am +++ b/vmod/Makefile.am @@ -24,6 +24,7 @@ vmod_LTLIBRARIES = vmod_vcc_files = include $(srcdir)/automake_boilerplate_blob.am +include $(srcdir)/automake_boilerplate_h2.am include $(srcdir)/automake_boilerplate_cookie.am include $(srcdir)/automake_boilerplate_debug.am include $(srcdir)/automake_boilerplate_directors.am diff --git a/vmod/automake_boilerplate_h2.am b/vmod/automake_boilerplate_h2.am new file mode 100644 index 000000000..fac5fd517 --- /dev/null +++ b/vmod/automake_boilerplate_h2.am @@ -0,0 +1,42 @@ +# Generated by vmodtool.py --boilerplate. + +vmod_h2_vcc ?= $(srcdir)/vmod_h2.vcc + +vmod_vcc_files += $(vmod_h2_vcc) + +vmod_LTLIBRARIES += libvmod_h2.la + +libvmod_h2_la_SOURCES = \ + vmod_h2.c + +libvmod_h2_la_CFLAGS = + +vmodtoolargs_h2 ?= --strict --boilerplate -o vcc_h2_if +vmod_h2_symbols_regex ?= Vmod_h2_Data + +libvmod_h2_la_LDFLAGS = \ + -export-symbols-regex $(vmod_h2_symbols_regex) \ + $(AM_LDFLAGS) \ + $(VMOD_LDFLAGS) + +nodist_libvmod_h2_la_SOURCES = vcc_h2_if.c vcc_h2_if.h + +EXTRA_libvmod_h2_la_DEPENDENCIES = $(nodist_libvmod_h2_la_SOURCES) + +EXTRA_DIST += automake_boilerplate_h2.am + +$(libvmod_h2_la_OBJECTS): vcc_h2_if.h + +vcc_h2_if.h vmod_h2.rst vmod_h2.man.rst: vcc_h2_if.c + +# A doc-change will not update mtime on the .h and .c files, so a +# touch(1) is necessary to signal that vmodtool was in fact run. +vcc_h2_if.c: $(VMODTOOL) $(srcdir)/vmod_h2.vcc + @PYTHON@ $(VMODTOOL) $(vmodtoolargs_h2) $(srcdir)/vmod_h2.vcc + touch vcc_h2_if.c + +clean-local: clean-vmod-h2 + +clean-vmod-h2: + rm -f $(nodist_libvmod_h2_la_SOURCES) + rm -f vmod_h2.rst vmod_h2.man.rst diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc new file mode 100644 index 000000000..e6754fc84 --- /dev/null +++ b/vmod/tests/h2_b00000.vtc @@ -0,0 +1,90 @@ +varnishtest "VMOD h2 basics" + +varnish v1 -arg "-p feature=+http2" -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.http2-is = h2.is(); + set resp.body = ""; + return (deliver); + } +} -start + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == false +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == true + } -run +} -start + +client c1 -wait +client c2 -wait + +# coverage +varnish v1 -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.rapid-reset-o = h2.rapid_reset(10ms); + set resp.http.rapid-reset-n = h2.rapid_reset(); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); + set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); + set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); + set resp.http.rapid-reset-budget = h2.rapid_reset_budget(); + set resp.body = ""; + return (deliver); + } +} + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == -1.000 + expect resp.http.rapid-reset-n == -1.000 + expect resp.http.rapid-reset-limit-o == -1 + expect resp.http.rapid-reset-limit-n == -1 + expect resp.http.rapid-reset-period-o == -1.000 + expect resp.http.rapid-reset-period-n == -1.000 + expect resp.http.rapid-reset-budget == -1.000 +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == 1.000 + expect resp.http.rapid-reset-n == 0.010 + expect resp.http.rapid-reset-limit-o == 0 + expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-period-o == 60.000 + expect resp.http.rapid-reset-period-n == 10.000 + expect resp.http.rapid-reset-budget == 100.000 + } -run +} -start + +client c1 -wait +client c2 -wait diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c new file mode 100644 index 000000000..bded788f4 --- /dev/null +++ b/vmod/vmod_h2.c @@ -0,0 +1,100 @@ +/*- + * Copyright 2023 UPLEX - Nils Goroll Systemoptimierung + * All rights reserved. + * + * Author: Nils Goroll + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "config.h" + +#include "cache/cache_varnishd.h" + +#include "vcc_h2_if.h" + +#include "cache/cache_transport.h" +#include "http2/cache_http2.h" + +static struct h2_sess * +h2get(VRT_CTX) +{ + struct h2_sess *h2; + uintptr_t *up; + + CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req->transport != &HTTP2_transport) + return (NULL); + AZ(SES_Get_proto_priv(ctx->req->sp, &up)); + CAST_OBJ_NOTNULL(h2, (void *)*up, H2_SESS_MAGIC); + return (h2); +} +VCL_BOOL +vmod_is(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + return (h2 != NULL); +} + +#define GETSET(type, name, argname) \ +type \ +vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ +{ \ + struct h2_sess *h2 = h2get(ctx); \ + type r; \ + \ + if (h2 == NULL) \ + return (-1); \ + \ + if (! args->valid_ ## argname) \ + return (h2->name); \ + if (h2->name == args->argname) \ + return (h2->name); \ + \ + Lck_Lock(&h2->sess->mtx); \ + r = h2->name; \ + if (h2->name != args->argname) { \ + h2->name = args->argname; \ + h2->rst_budget = h2->rapid_reset_limit; \ + h2->last_rst = ctx->now; \ + } \ + Lck_Unlock(&h2->sess->mtx); \ + return (r); \ +} + +GETSET(VCL_DURATION, rapid_reset, threshold) +GETSET(VCL_INT, rapid_reset_limit, number) +GETSET(VCL_DURATION, rapid_reset_period, duration) + +VCL_REAL +vmod_rapid_reset_budget(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + if (h2 == NULL) + return (-1); + + return (h2->rst_budget); +} diff --git a/vmod/vmod_h2.vcc b/vmod/vmod_h2.vcc new file mode 100644 index 000000000..28f821fe7 --- /dev/null +++ b/vmod/vmod_h2.vcc @@ -0,0 +1,93 @@ +#- +# Copyright 2023 UPLEX - Nils Goroll Systemoptimierung +# All rights reserved. +# +# Author: Nils Goroll +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +$ABI strict +$Module h2 3 "Module to control the built-in HTTP2 transport" + +DESCRIPTION +=========== + +This VMOD contains functions to control the HTTP2 transport built into +Varnish-Cache. + +$Function BOOL is() +$Restrict client + +Returns true when called on a session handled by the built-in HTTP2 transport. + +$Function DURATION rapid_reset([DURATION threshold]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function INT rapid_reset_limit([INT number]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset_limit`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function DURATION rapid_reset_period([DURATION duration]) +$Restrict client + +Get and optionally set the ``h2_rapid_reset_period`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function REAL rapid_reset_budget() +$Restrict client + +Return how many RST frames classified as "rapid" the client is still +allowed to send before the session is going to be closed. + +SEE ALSO +======== + +* :ref:`varnishd(1)` +* :ref:`vsl(7)` From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] 498adbdcc Start with a reasonable default for h2_rapid_reset_limit Message-ID: <20231023171810.52493116E2B@lists.varnish-cache.org> commit 498adbdcc75a1b083f905c78a3ca845ba33b2ff3 Author: Nils Goroll Date: Wed Oct 18 13:53:53 2023 +0200 Start with a reasonable default for h2_rapid_reset_limit as agreed on IRC. diff --git a/include/tbl/params.h b/include/tbl/params.h index c369bc9e7..073e5be3b 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1281,7 +1281,7 @@ PARAM_SIMPLE( /* typ */ uint, /* min */ "0", /* max */ NULL, - /* def */ "0", + /* def */ "100", /* units */ NULL, /* descr */ "HTTP2 RST Allowance.\n" From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] f1c044c48 Adjust test case to previous commit Message-ID: <20231023171810.6C494116E33@lists.varnish-cache.org> commit f1c044c480146020ad59828f8024689b6799c151 Author: Nils Goroll Date: Wed Oct 18 14:01:33 2023 +0200 Adjust test case to previous commit (sorry) diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc index e6754fc84..aedb6aad8 100644 --- a/vmod/tests/h2_b00000.vtc +++ b/vmod/tests/h2_b00000.vtc @@ -48,7 +48,7 @@ varnish v1 -vcl { sub vcl_synth { set resp.http.rapid-reset-o = h2.rapid_reset(10ms); set resp.http.rapid-reset-n = h2.rapid_reset(); - set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(10); set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); @@ -78,11 +78,11 @@ client c2 { expect resp.status == 200 expect resp.http.rapid-reset-o == 1.000 expect resp.http.rapid-reset-n == 0.010 - expect resp.http.rapid-reset-limit-o == 0 - expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-limit-o == 100 + expect resp.http.rapid-reset-limit-n == 10 expect resp.http.rapid-reset-period-o == 60.000 expect resp.http.rapid-reset-period-n == 10.000 - expect resp.http.rapid-reset-budget == 100.000 + expect resp.http.rapid-reset-budget == 10.000 } -run } -start From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] eb8aed1de Flexelinting Message-ID: <20231023171810.8A7D8116E3D@lists.varnish-cache.org> commit eb8aed1dec32caf6857cb2663a481a1485eb835c Author: Nils Goroll Date: Wed Oct 18 15:17:11 2023 +0200 Flexelinting we can not make the parameter const because API. diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c index bded788f4..45642f140 100644 --- a/vmod/vmod_h2.c +++ b/vmod/vmod_h2.c @@ -65,6 +65,8 @@ vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ struct h2_sess *h2 = h2get(ctx); \ type r; \ \ + (void)args; \ + \ if (h2 == NULL) \ return (-1); \ \ From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] 852fe48a1 hpack: Turn header validation state into an enum Message-ID: <20231023171810.A53A5116E48@lists.varnish-cache.org> commit 852fe48a1d8f2090106a521b784d609fa635e27f Author: Walid Boudebouda Date: Fri Sep 8 16:55:18 2023 +0200 hpack: Turn header validation state into an enum Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 6261a2cd1..cc33ec78c 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -44,6 +44,12 @@ static h2_error h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) { const char *p; + enum { + FLD_NAME_FIRST, + FLD_NAME, + FLD_VALUE_FIRST, + FLD_VALUE + } state; CHECK_OBJ_NOTNULL(hp, HTTP_MAGIC); AN(b); @@ -60,15 +66,15 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) // VSLb(hp->vsl, SLT_Debug, "CHDR [%.*s] [%.*s]", // (int)namelen, b, (int)(len - namelen), b + namelen); - int state = 0; + state = FLD_NAME_FIRST; for (p = b; p < b + namelen - 2; p++) { switch(state) { - case 0: /* First char of field */ - state = 1; + case FLD_NAME_FIRST: + state = FLD_NAME; if (*p == ':') break; /* FALL_THROUGH */ - case 1: /* field name */ + case FLD_NAME: if (*p <= 0x20 || *p >= 0x7f) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field header name (control): %.*s", @@ -93,19 +99,19 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) } } - state = 2; + state = FLD_VALUE_FIRST; for (p = b + namelen; p < b + len; p++) { switch(state) { - case 2: /* First char of field */ + case FLD_VALUE_FIRST: if (*p == ' ' || *p == 0x09) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value start %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } - state = 3; + state = FLD_VALUE; /* FALL_THROUGH */ - case 3: /* field value character */ + case FLD_VALUE: if (*p != 0x09 && (*p < 0x20 || *p == 0x7f)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (control) %.*s", @@ -117,7 +123,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) WRONG("http2 field value validation state"); } } - if (state == 3 && b[len - 1] <= 0x20) { + if (state == FLD_VALUE && b[len - 1] <= 0x20) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (end) %.*s", (int)(len > 20 ? 20 : len), b); From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] c8e0c6aca hpack: Check illegal header blanks with vct_issp() Message-ID: <20231023171810.C36B7116E55@lists.varnish-cache.org> commit c8e0c6aca132a8b6525a105e544675608233d0d9 Author: Walid Boudebouda Date: Fri Sep 8 17:25:06 2023 +0200 hpack: Check illegal header blanks with vct_issp() Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index cc33ec78c..35610b616 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -103,7 +103,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) for (p = b + namelen; p < b + len; p++) { switch(state) { case FLD_VALUE_FIRST: - if (*p == ' ' || *p == 0x09) { + if (vct_issp(*p)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value start %.*s", (int)(len > 20 ? 20 : len), b); @@ -123,7 +123,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) WRONG("http2 field value validation state"); } } - if (state == FLD_VALUE && b[len - 1] <= 0x20) { + if (state == FLD_VALUE && vct_issp(b[len - 1])) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (end) %.*s", (int)(len > 20 ? 20 : len), b); From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:10 +0000 (UTC) Subject: [7.4] 6b5a51e98 hpack: Validate header values with vct_ishdrval() Message-ID: <20231023171810.DD577116E63@lists.varnish-cache.org> commit 6b5a51e98b898a09b03b9e3614ed024af467f7f3 Author: Walid Boudebouda Date: Fri Sep 8 17:37:26 2023 +0200 hpack: Validate header values with vct_ishdrval() Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 35610b616..92befad53 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -112,9 +112,9 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) state = FLD_VALUE; /* FALL_THROUGH */ case FLD_VALUE: - if (*p != 0x09 && (*p < 0x20 || *p == 0x7f)) { + if (!vct_ishdrval(*p)) { VSLb(hp->vsl, SLT_BogoHeader, - "Illegal field value (control) %.*s", + "Illegal field value %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:11 +0000 (UTC) Subject: [7.4] 836eae3c8 hpack: Remove redundant/incorrect header validation Message-ID: <20231023171811.0A625116E6D@lists.varnish-cache.org> commit 836eae3c8a3da966f4de8bf6f829ede7913fe235 Author: Walid Boudebouda Date: Fri Sep 8 17:13:19 2023 +0200 hpack: Remove redundant/incorrect header validation Control characters will be caught by vct_ishdrval() anyways, but this condition would also reject allowed obs-text non-ASCII characters. Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 92befad53..b5451eb22 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -75,12 +75,6 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) break; /* FALL_THROUGH */ case FLD_NAME: - if (*p <= 0x20 || *p >= 0x7f) { - VSLb(hp->vsl, SLT_BogoHeader, - "Illegal field header name (control): %.*s", - (int)(len > 20 ? 20 : len), b); - return (H2SE_PROTOCOL_ERROR); - } if (isupper(*p)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field header name (upper-case): %.*s", From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:11 +0000 (UTC) Subject: [7.4] 4224a78fa vtc: More HPACK header validation coverage Message-ID: <20231023171811.273AB116E78@lists.varnish-cache.org> commit 4224a78fa7932e35609ef8e4aa81a93e033ef696 Author: Walid Boudebouda Date: Fri Sep 8 17:54:43 2023 +0200 vtc: More HPACK header validation coverage Adds coverage for tab characters at start/end of field value. Regarding the "fo o" " bar" header, it cumulates an error in the name and another in the value, but only one of them will trigger the expected PROTOCOL_ERROR. Only the invalid "fo o" is checked now, and the other error is part of the new coverage. Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index 5f5f434bf..388f3a70a 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -30,6 +30,7 @@ client c1 { stream 1 { txreq -url "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -37,6 +38,7 @@ client c1 { stream 1 { txreq -scheme "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -44,6 +46,7 @@ client c1 { stream 1 { txreq -req "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -51,8 +54,9 @@ varnish v1 -vsl_catchup client c1 { stream 1 { - txreq -hdr "fo o" " bar" + txreq -hdr "foo" " bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -60,6 +64,7 @@ client c1 { stream 1 { txreq -hdr "foo" " " rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -67,6 +72,7 @@ client c1 { stream 1 { txreq -hdr ":foo" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -74,6 +80,7 @@ client c1 { stream 1 { txreq -hdr "foo" "b\x0car" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -81,6 +88,7 @@ client c1 { stream 1 { txreq -hdr "f o" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -88,6 +96,7 @@ client c1 { stream 1 { txreq -hdr "f: o" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -95,5 +104,22 @@ client c1 { stream 1 { txreq -hdr "foo" "bar " rxrst + expect rst.err == PROTOCOL_ERROR + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" " bar" + rxrst + expect rst.err == PROTOCOL_ERROR + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" "bar " + rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run From dridi.boukelmoune at gmail.com Mon Oct 23 17:18:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Mon, 23 Oct 2023 17:18:11 +0000 (UTC) Subject: [7.4] 79bec7890 vtc: Coverage for h2 empty header in t02023 Message-ID: <20231023171811.4462E116E87@lists.varnish-cache.org> commit 79bec78901da20fadd11d5287d0e9ae16c3b6ed1 Author: Dridi Boukelmoune Date: Thu Sep 14 12:59:21 2023 +0200 vtc: Coverage for h2 empty header in t02023 diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index 388f3a70a..13c4cb445 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -1,4 +1,4 @@ -varnishtest "Empty pseudo-headers" +varnishtest "Empty and invalid headers" server s1 { rxreq @@ -50,6 +50,14 @@ client c1 { } -run } -run +client c1 { + stream 1 { + txreq -hdr "empty" "" + rxresp + expect resp.status == 200 + } -run +} -run + varnish v1 -vsl_catchup client c1 { From dridi.boukelmoune at gmail.com Tue Oct 24 12:22:07 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 12:22:07 +0000 (UTC) Subject: [master] 161ab2cf6 build: Generate and install man/vmod_h2.3 Message-ID: <20231024122207.748C1118E8F@lists.varnish-cache.org> commit 161ab2cf696372e3ff6c41806e68705476b113d9 Author: Dridi Boukelmoune Date: Tue Oct 24 14:20:47 2023 +0200 build: Generate and install man/vmod_h2.3 diff --git a/man/Makefile.am b/man/Makefile.am index 4b89fce68..560ec8d55 100644 --- a/man/Makefile.am +++ b/man/Makefile.am @@ -26,7 +26,8 @@ dist_man_MANS = \ vmod_vtc.3 \ vmod_blob.3 \ vmod_unix.3 \ - vmod_proxy.3 + vmod_proxy.3 \ + vmod_h2.3 CLEANFILES = $(dist_man_MANS) @@ -141,4 +142,7 @@ vmod_unix.3: $(top_builddir)/vmod/vmod_unix.man.rst vmod_proxy.3: $(top_builddir)/vmod/vmod_proxy.man.rst $(BUILD_MAN) $? $@ +vmod_h2.3: $(top_builddir)/vmod/vmod_h2.man.rst + $(BUILD_MAN) $? $@ + .NOPATH: $(dist_man_MANS) From dridi.boukelmoune at gmail.com Tue Oct 24 12:25:06 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 12:25:06 +0000 (UTC) Subject: [7.4] 61aed026d build: Generate and install man/vmod_h2.3 Message-ID: <20231024122506.9BE1411916B@lists.varnish-cache.org> commit 61aed026d00a53f361c8e38c46d308e0df628a0c Author: Dridi Boukelmoune Date: Tue Oct 24 14:20:47 2023 +0200 build: Generate and install man/vmod_h2.3 diff --git a/man/Makefile.am b/man/Makefile.am index 4b89fce68..560ec8d55 100644 --- a/man/Makefile.am +++ b/man/Makefile.am @@ -26,7 +26,8 @@ dist_man_MANS = \ vmod_vtc.3 \ vmod_blob.3 \ vmod_unix.3 \ - vmod_proxy.3 + vmod_proxy.3 \ + vmod_h2.3 CLEANFILES = $(dist_man_MANS) @@ -141,4 +142,7 @@ vmod_unix.3: $(top_builddir)/vmod/vmod_unix.man.rst vmod_proxy.3: $(top_builddir)/vmod/vmod_proxy.man.rst $(BUILD_MAN) $? $@ +vmod_h2.3: $(top_builddir)/vmod/vmod_h2.man.rst + $(BUILD_MAN) $? $@ + .NOPATH: $(dist_man_MANS) diff --git a/vmod/automake_boilerplate_h2.am b/vmod/automake_boilerplate_h2.am index fac5fd517..530fac97b 100644 --- a/vmod/automake_boilerplate_h2.am +++ b/vmod/automake_boilerplate_h2.am @@ -1,6 +1,6 @@ # Generated by vmodtool.py --boilerplate. -vmod_h2_vcc ?= $(srcdir)/vmod_h2.vcc +vmod_h2_vcc = $(srcdir)/vmod_h2.vcc vmod_vcc_files += $(vmod_h2_vcc) From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:10 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:10 +0000 (UTC) Subject: [7.3] 1a2740478 Bump cli_limit to fit param.show -j with more parameters coming Message-ID: <20231024150810.E7D4B11E09D@lists.varnish-cache.org> commit 1a2740478da84ce5e4421cc8ebe819cb2200e88f Author: Nils Goroll Date: Mon Oct 16 19:14:56 2023 +0200 Bump cli_limit to fit param.show -j with more parameters coming diff --git a/include/tbl/params.h b/include/tbl/params.h index cf46b1658..35266275f 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -316,7 +316,7 @@ PARAM_SIMPLE( /* type */ bytes_u, /* min */ "128b", /* max */ "99999999b", - /* def */ "48k", + /* def */ "64k", /* units */ "bytes", /* descr */ "Maximum size of CLI response. If the response exceeds this " From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:11 +0000 (UTC) Subject: [7.3] eed59b81c h2: Add a rate limit facility for h/2 RST handling Message-ID: <20231024150811.3CE1411E0A1@lists.varnish-cache.org> commit eed59b81c4c30bac46dd50c819c84f44c5db4465 Author: Dag Haavi Finstad Date: Thu Oct 12 10:50:55 2023 +0200 h2: Add a rate limit facility for h/2 RST handling This adds parameters h2_rst_allowance and h2_rst_allowance_period, which govern the rate of which we allow clients to reset h/2 streams. If the limit is exceeded the connection is closed. Mitigates: #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index eb6e8f6a9..9457c99f2 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -193,6 +193,8 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + double rst_budget; + vtim_real last_rst; }; #define ASSERT_RXTHR(h2) do {assert(h2->rxthr == pthread_self());} while(0) diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index c1ced04b6..3f900b0a7 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -317,9 +317,41 @@ h2_rx_push_promise(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) /********************************************************************** */ +static h2_error +h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) +{ + vtim_real now; + vtim_dur d; + + CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); + ASSERT_RXTHR(h2); + CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); + + if (cache_param->h2_rapid_reset_limit == 0) + return (0); + + now = VTIM_real(); + d = now - h2->last_rst; + h2->rst_budget += cache_param->h2_rapid_reset_limit * d / + cache_param->h2_rapid_reset_period; + h2->rst_budget = vmin_t(double, h2->rst_budget, + cache_param->h2_rapid_reset_limit); + h2->last_rst = now; + + if (h2->rst_budget < 1.0) { + Lck_Lock(&h2->sess->mtx); + VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); + Lck_Unlock(&h2->sess->mtx); + return (H2CE_ENHANCE_YOUR_CALM); + } + h2->rst_budget -= 1.0; + return (0); +} + static h2_error v_matchproto_(h2_rxframe_f) h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) { + h2_error h2e; CHECK_OBJ_NOTNULL(wrk, WORKER_MAGIC); ASSERT_RXTHR(h2); @@ -329,8 +361,9 @@ h2_rx_rst_stream(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (H2CE_FRAME_SIZE_ERROR); if (r2 == NULL) return (0); + h2e = h2_rapid_reset(wrk, h2, r2); h2_kill_req(wrk, h2, r2, h2_streamerror(vbe32dec(h2->rxf_data))); - return (0); + return (h2e); } /********************************************************************** diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 846b319f1..b37dd105c 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,6 +127,9 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; + h2->rst_budget = cache_param->h2_rapid_reset_limit; + h2->last_rst = sp->t_open; + AZ(isnan(h2->last_rst)); AZ(VHT_Init(h2->dectbl, h2->local_settings.header_table_size)); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc new file mode 100644 index 000000000..5864c837f --- /dev/null +++ b/bin/varnishtest/tests/r03996.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 rapid reset" + +barrier b1 sock 5 + +server s1 { + rxreq + txresp +} -start + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -cliok "param.set h2_rapid_reset_limit 3" + +varnish v1 -vcl+backend { + import vtc; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + } + +} -start + +client c1 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + + stream 1 { + txreq + txrst + } -run + stream 3 { + txreq + txrst + } -run + stream 5 { + txreq + txrst + } -run + stream 7 { + txreq + txrst + } -run + + barrier b1 sync + stream 0 -wait +} -run + diff --git a/include/tbl/params.h b/include/tbl/params.h index 35266275f..214fd21ff 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1243,6 +1243,34 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset_limit, + /* typ */ uint, + /* min */ "0", + /* max */ NULL, + /* def */ "0", + /* units */ NULL, + /* descr */ + "HTTP2 RST Allowance.\n" + "Specifies the maximum number of allowed stream resets issued by\n" + "a client over a time period before the connection is closed.\n" + "Setting this parameter to 0 disables the limit.", + /* flags */ EXPERIMENTAL, +) + +PARAM_SIMPLE( + /* name */ h2_rapid_reset_period, + /* typ */ timeout, + /* min */ "1.000", + /* max */ NULL, + /* def */ "60.000", + /* units */ "seconds", + /* descr */ + "HTTP2 sliding window duration for h2_rapid_reset_limit.", + /* flags */ EXPERIMENTAL|WIZARD, +) + + /*-------------------------------------------------------------------- * Memory pool parameters */ From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:11 +0000 (UTC) Subject: [7.3] eb300701e Introduce RAPID_RESET as a sess_close reason Message-ID: <20231024150811.81F8911E0A5@lists.varnish-cache.org> commit eb300701e816c00ca65f76f2e12a394215be2a16 Author: Dag Haavi Finstad Date: Tue Oct 17 11:20:11 2023 +0200 Introduce RAPID_RESET as a sess_close reason diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index 3f900b0a7..ea4429569 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -47,6 +47,7 @@ #include "vtcp.h" #include "vtim.h" +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) const struct h2_error_s H2CE_##U[1] = {{#U,d,v,0,1,r}}; #define H2EC2(U,v,r,d) const struct h2_error_s H2SE_##U[1] = {{#U,d,v,1,0,r}}; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) @@ -342,7 +343,7 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) Lck_Lock(&h2->sess->mtx); VSLb(h2->vsl, SLT_Error, "H2: Hit RST limit. Closing session."); Lck_Unlock(&h2->sess->mtx); - return (H2CE_ENHANCE_YOUR_CALM); + return (H2CE_RAPID_RESET); } h2->rst_budget -= 1.0; return (0); diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 5864c837f..6feef4963 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -47,3 +47,4 @@ client c1 { stream 0 -wait } -run +varnish v1 -expect sc_rapid_reset == 1 diff --git a/include/tbl/h2_error.h b/include/tbl/h2_error.h index 2cd06f011..c6c6bed89 100644 --- a/include/tbl/h2_error.h +++ b/include/tbl/h2_error.h @@ -147,5 +147,17 @@ H2_ERROR( /* descr */ "Use HTTP/1.1 for the request" ) +#ifdef H2_CUSTOM_ERRORS +H2_ERROR( + /* name */ RAPID_RESET, + /* val */ 11, /* ENHANCE_YOUR_CALM */ + /* types */ 1, + /* reason */ SC_RAPID_RESET, + /* descr */ "http/2 rapid reset detected" +) + +# undef H2_CUSTOM_ERRORS +#endif + #undef H2_ERROR /*lint -restore */ diff --git a/include/tbl/sess_close.h b/include/tbl/sess_close.h index b91c93951..f15d34a64 100644 --- a/include/tbl/sess_close.h +++ b/include/tbl/sess_close.h @@ -50,6 +50,7 @@ SESS_CLOSE(PIPE_OVERFLOW, pipe_overflow,1, "Session pipe overflow") SESS_CLOSE(RANGE_SHORT, range_short, 1, "Insufficient data for range") SESS_CLOSE(REQ_HTTP20, req_http20, 1, "HTTP2 not accepted") SESS_CLOSE(VCL_FAILURE, vcl_failure, 1, "VCL failure") +SESS_CLOSE(RAPID_RESET, rapid_reset, 1, "HTTP2 rapid reset") #undef SESS_CLOSE /*lint -restore */ diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 047218ad8..a935a569a 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -631,6 +631,14 @@ Number of session closes with Error VCL_FAILURE (VCL failure) +.. varnish_vsc:: sc_rapid_reset + :level: diag + :oneliner: Session Err RAPID_RESET + + Number of times we failed an http/2 session because it hit its + configured limits for the number of permitted rapid stream + resets. + .. varnish_vsc:: client_resp_500 :level: diag :group: wrk From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:11 +0000 (UTC) Subject: [7.3] c5f430aa4 Add param h2_rapid_reset Message-ID: <20231024150811.A0C5011E0A8@lists.varnish-cache.org> commit c5f430aa4d29bb5de8d6fbfc545f08badc66f10c Author: Dag Haavi Finstad Date: Tue Oct 17 11:27:44 2023 +0200 Add param h2_rapid_reset Only RST frames received earlier than this duration will be considered rapid. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index ea4429569..a006d708f 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -332,6 +332,11 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) return (0); now = VTIM_real(); + CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); + AN(r2->req->t_first); + if (now - r2->req->t_first > cache_param->h2_rapid_reset) + return (0); + d = now - h2->last_rst; h2->rst_budget += cache_param->h2_rapid_reset_limit * d / cache_param->h2_rapid_reset_period; diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 6feef4963..3fee3706c 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -10,6 +10,7 @@ server s1 { varnish v1 -cliok "param.set feature +http2" varnish v1 -cliok "param.set debug +syncvsl" varnish v1 -cliok "param.set h2_rapid_reset_limit 3" +varnish v1 -cliok "param.set h2_rapid_reset 5" varnish v1 -vcl+backend { import vtc; diff --git a/include/tbl/params.h b/include/tbl/params.h index 214fd21ff..fb3b95131 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1243,6 +1243,20 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +PARAM_SIMPLE( + /* name */ h2_rapid_reset, + /* typ */ timeout, + /* min */ "0.000", + /* max */ NULL, + /* def */ "1.000", + /* units */ "seconds", + /* descr */ + "The upper threshold for how rapid an http/2 RST has to come for " + "it to be treated as suspect and subjected to the rate limits " + "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + /* flags */ EXPERIMENTAL, +) + PARAM_SIMPLE( /* name */ h2_rapid_reset_limit, /* typ */ uint, @@ -1270,7 +1284,6 @@ PARAM_SIMPLE( /* flags */ EXPERIMENTAL|WIZARD, ) - /*-------------------------------------------------------------------- * Memory pool parameters */ From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:11 +0000 (UTC) Subject: [7.3] 9f5c08ad0 Polish h2_rapid_reset docs Message-ID: <20231024150811.BF42911E0B0@lists.varnish-cache.org> commit 9f5c08ad0bea1456741075151073d85c7c867cd5 Author: Nils Goroll Date: Tue Oct 17 13:30:01 2023 +0200 Polish h2_rapid_reset docs diff --git a/include/tbl/params.h b/include/tbl/params.h index fb3b95131..033633273 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1251,9 +1251,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come for " - "it to be treated as suspect and subjected to the rate limits " - "specified by h2_rapid_reset_limit and h2_rapid_reset_period.", + "The upper threshold for how rapid an http/2 RST has to come after " + "a HEADERS frame for it to be treated as suspect and subjected to " + "the rate limits specified by h2_rapid_reset_limit and " + "h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:11 +0000 (UTC) Subject: [7.3] be9695567 Flexelinting Message-ID: <20231024150811.DF9D011E0BF@lists.varnish-cache.org> commit be9695567cc3b3070cc0bba5060d3ac4aba7676a Author: Poul-Henning Kamp Date: Tue Oct 17 14:35:22 2023 +0000 Flexelinting diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 9457c99f2..65ea1d2df 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -49,6 +49,7 @@ struct h2_error_s { typedef const struct h2_error_s *h2_error; +#define H2_CUSTOM_ERRORS #define H2EC1(U,v,r,d) extern const struct h2_error_s H2CE_##U[1]; #define H2EC2(U,v,r,d) extern const struct h2_error_s H2SE_##U[1]; #define H2EC3(U,v,r,d) H2EC1(U,v,r,d) H2EC2(U,v,r,d) From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] 5814981d3 slinkified dridi-polish Message-ID: <20231024150812.0748211E0C8@lists.varnish-cache.org> commit 5814981d39bbe80f78c90979e911f0f2079a5774 Author: Nils Goroll Date: Tue Oct 17 18:29:43 2023 +0200 slinkified dridi-polish diff --git a/include/tbl/params.h b/include/tbl/params.h index 033633273..5bee92256 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1251,10 +1251,10 @@ PARAM_SIMPLE( /* def */ "1.000", /* units */ "seconds", /* descr */ - "The upper threshold for how rapid an http/2 RST has to come after " - "a HEADERS frame for it to be treated as suspect and subjected to " - "the rate limits specified by h2_rapid_reset_limit and " - "h2_rapid_reset_period.", + "The upper threshold for how soon an http/2 RST_STREAM frame has " + "to be parsed after a HEADERS frame for it to be treated as " + "suspect and subjected to the rate limits specified by " + "h2_rapid_reset_limit and h2_rapid_reset_period.", /* flags */ EXPERIMENTAL, ) From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] ecd6aa72a vtc: Avoid cycling the barrier in t02014 Message-ID: <20231024150812.3026A11E0D4@lists.varnish-cache.org> commit ecd6aa72ad8f2b7165179598d938a49021ef7730 Author: Dridi Boukelmoune Date: Thu Oct 12 11:17:09 2023 +0200 vtc: Avoid cycling the barrier in t02014 It was particularly hard to follow once we reach client c3. diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index f47eed657..8add78a0d 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -1,6 +1,9 @@ varnishtest "Exercise h/2 sender flow control code" -barrier b1 sock 3 -cyclic +barrier b1 sock 3 +barrier b2 sock 3 +barrier b3 sock 3 +barrier b4 sock 3 server s1 { rxreq @@ -23,7 +26,9 @@ varnish v1 -vcl+backend { } sub vcl_deliver { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } } } -start @@ -43,7 +48,7 @@ client c1 { } -start stream 1 { - txreq + txreq -hdr barrier ${b1_sock} barrier b1 sync delay .5 txwinup -size 256 @@ -61,15 +66,15 @@ client c1 { client c2 { stream 0 { - barrier b1 sync + barrier b2 sync } -start stream 1 { - txreq + txreq -hdr barrier ${b2_sock} txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b2 sync } -run stream 0 -wait @@ -77,8 +82,8 @@ client c2 { client c3 { stream 0 { - barrier b1 sync - barrier b1 sync + barrier b3 sync + barrier b4 sync delay .5 txwinup -size 256 delay .5 @@ -89,17 +94,17 @@ client c3 { } -start stream 1 { - txreq -req "POST" -nostrend + txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED - barrier b1 sync + barrier b3 sync } -run stream 3 { - txreq - barrier b1 sync + txreq -hdr barrier ${b4_sock} + barrier b4 sync delay .5 txwinup -size 256 delay .5 From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] edde7108a transport: New poll method Message-ID: <20231024150812.4EAA211E0D7@lists.varnish-cache.org> commit edde7108a46ebdc3b770b49e2a578ee20da86c6f Author: Dridi Boukelmoune Date: Wed Oct 11 11:57:48 2023 +0200 transport: New poll method The goal is for top-level transports to report whether the client is still present or not. diff --git a/bin/varnishd/cache/cache_transport.h b/bin/varnishd/cache/cache_transport.h index 0e5f03c65..79f0a7b2d 100644 --- a/bin/varnishd/cache/cache_transport.h +++ b/bin/varnishd/cache/cache_transport.h @@ -44,6 +44,7 @@ typedef void vtr_sess_panic_f (struct vsb *, const struct sess *); typedef void vtr_req_panic_f (struct vsb *, const struct req *); typedef void vtr_req_fail_f (struct req *, stream_close_t); typedef void vtr_reembark_f (struct worker *, struct req *); +typedef int vtr_poll_f (struct req *); typedef int vtr_minimal_response_f (struct req *, uint16_t status); struct transport { @@ -64,6 +65,7 @@ struct transport { vtr_sess_panic_f *sess_panic; vtr_req_panic_f *req_panic; vtr_reembark_f *reembark; + vtr_poll_f *poll; vtr_minimal_response_f *minimal_response; VTAILQ_ENTRY(transport) list; From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] 4909d56ea vcl_vrt: Skip VCL execution if the client is gone Message-ID: <20231024150812.821B511E0F9@lists.varnish-cache.org> commit 4909d56eaca56583b738646d031025756748a9bc Author: Dridi Boukelmoune Date: Wed Oct 11 19:51:58 2023 +0200 vcl_vrt: Skip VCL execution if the client is gone Once a client is reportedly gone, processing its VCL task(s) is just a waste of resources. The execution of client-facing VCL is intercepted and an artificial return(fail) is returned in that scenario. Thanks to the introduction of the universal return(fail) proper error handling and resource tear down is already in place, which makes this change safe modulus unknown bugs. This adds a circuit breaker anywhere in the client state machine where there is VCL execution. A new Reset time stamp is logged to convey when a task does not complete because the client is gone. This is a good complement to the walk away feature and its original circuit breaker for the waiting list, but this has not been integrated yet. While the request is technically failed, it won't increase the vcl_fail counter, and a new req_reset counter is incremented. This new behavior is guarded by a new vcl_req_reset feature flag, enabled by default. Refs #3835 Refs 61a15cbffe1141c13b87e30d48ce1402f84433bf Refs e5efc2c8dc0d003e5f0fa1a30b598f5949112897 Refs ba54dc919076b1ddb85434d886ce82a6553d926b Refs 6f50a00f80c7f74b2a8b18bb80593f58b74816fd Refs b8816994cfab58261d8000ea8e6941cb5de640fa Conflicts: include/tbl/feature_bits.h diff --git a/bin/varnishd/cache/cache_vrt_vcl.c b/bin/varnishd/cache/cache_vrt_vcl.c index c98274e9d..85b594b7d 100644 --- a/bin/varnishd/cache/cache_vrt_vcl.c +++ b/bin/varnishd/cache/cache_vrt_vcl.c @@ -42,6 +42,7 @@ #include "vbm.h" #include "cache_director.h" +#include "cache_transport.h" #include "cache_vcl.h" #include "vcc_interface.h" @@ -521,6 +522,40 @@ VRT_VCL_Allow_Discard(struct vclref **refp) FREE_OBJ(ref); } +/*-------------------------------------------------------------------- + */ + +static int +req_poll(struct worker *wrk, struct req *req) +{ + struct req *top; + + /* NB: Since a fail transition leads to vcl_synth, the request may be + * short-circuited twice. + */ + if (req->req_reset) { + wrk->vpi->handling = VCL_RET_FAIL; + return (-1); + } + + top = req->top->topreq; + CHECK_OBJ_NOTNULL(top, REQ_MAGIC); + CHECK_OBJ_NOTNULL(top->transport, TRANSPORT_MAGIC); + + if (!FEATURE(FEATURE_VCL_REQ_RESET)) + return (0); + if (top->transport->poll == NULL) + return (0); + if (top->transport->poll(top) >= 0) + return (0); + + VSLb_ts_req(req, "Reset", W_TIM_real(wrk)); + wrk->stats->req_reset++; + wrk->vpi->handling = VCL_RET_FAIL; + req->req_reset = 1; + return (-1); +} + /*-------------------------------------------------------------------- * Method functions to call into VCL programs. * @@ -552,6 +587,8 @@ vcl_call_method(struct worker *wrk, struct req *req, struct busyobj *bo, CHECK_OBJ_NOTNULL(req->sp, SESS_MAGIC); CHECK_OBJ_NOTNULL(req->vcl, VCL_MAGIC); CHECK_OBJ_NOTNULL(req->top, REQTOP_MAGIC); + if (req_poll(wrk, req)) + return; VCL_Req2Ctx(&ctx, req); } assert(ctx.now != 0); diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index e8ea7a36d..d8b440a08 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -76,6 +76,10 @@ Resp Restart Client request is being restarted. +Reset + The client closed its connection or reset its stream. Request + processing is interrupted and considered failed. + Pipe handling timestamps ~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/include/tbl/feature_bits.h b/include/tbl/feature_bits.h index 68ae39839..a3df4a03b 100644 --- a/include/tbl/feature_bits.h +++ b/include/tbl/feature_bits.h @@ -86,6 +86,11 @@ FEATURE_BIT(BUSY_STATS_RATE, busy_stats_rate, "Make busy workers comply with thread_stats_rate." ) +FEATURE_BIT(VCL_REQ_RESET, vcl_req_reset, + "Stop processing client VCL once the client is gone. " + "When this happens MAIN.req_reset is incremented." +) + #undef FEATURE_BIT /*lint -restore */ diff --git a/include/tbl/params.h b/include/tbl/params.h index 5bee92256..d5e080758 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1810,7 +1810,9 @@ PARAM_PRE PARAM_BITS( /* name */ feature, /* fld */ feature_bits, - /* def */ "+validate_headers", + /* def */ + "+validate_headers," + "+vcl_req_reset", /* descr */ "Enable/Disable various minor features.\n" "\tdefault\tSet default value\n" diff --git a/include/tbl/req_flags.h b/include/tbl/req_flags.h index 88eaff639..6a9e6acbb 100644 --- a/include/tbl/req_flags.h +++ b/include/tbl/req_flags.h @@ -40,6 +40,7 @@ REQ_FLAG(is_hit, 0, 0, "") REQ_FLAG(waitinglist, 0, 0, "") REQ_FLAG(want100cont, 0, 0, "") REQ_FLAG(late100cont, 0, 0, "") +REQ_FLAG(req_reset, 0, 0, "") #define REQ_BEREQ_FLAG(lower, vcl_r, vcl_w, doc) \ REQ_FLAG(lower, vcl_r, vcl_w, doc) #include "tbl/req_bereq_flags.h" diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index a935a569a..1bb5ad22e 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -342,6 +342,13 @@ Number of times an HTTP/2 stream was refused because the queue was too long already. See also parameter thread_queue_limit. +.. varnish_vsc:: req_reset + :group: wrk + :oneliner: Requests reset + + Number of times a client left before the VCL processing of its + requests completed. + .. varnish_vsc:: n_object :type: gauge :group: wrk From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] 1174a0470 http2_session: Implement transport polling Message-ID: <20231024150812.B1EAD11E106@lists.varnish-cache.org> commit 1174a0470e3013424a69fe613a08e6aac7ee1abf Author: Dridi Boukelmoune Date: Wed Oct 11 12:38:21 2023 +0200 http2_session: Implement transport polling The error check is not performed in a critical section to avoid contention, at the risk of not seeing the error until the next transport poll. diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index b37dd105c..29af53093 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -441,6 +441,16 @@ h2_new_session(struct worker *wrk, void *arg) wrk->vsl = NULL; } +static int v_matchproto_(vtr_poll_f) +h2_poll(struct req *req) +{ + struct h2_req *r2; + + CHECK_OBJ_NOTNULL(req, REQ_MAGIC); + CAST_OBJ_NOTNULL(r2, req->transport_priv, H2_REQ_MAGIC); + return (r2->error ? -1 : 1); +} + struct transport HTTP2_transport = { .name = "HTTP/2", .magic = TRANSPORT_MAGIC, @@ -450,4 +460,5 @@ struct transport HTTP2_transport = { .req_body = h2_req_body, .req_fail = h2_req_fail, .sess_panic = h2_sess_panic, + .poll = h2_poll, }; diff --git a/bin/varnishtest/tests/t02014.vtc b/bin/varnishtest/tests/t02014.vtc index 8add78a0d..f4083c890 100644 --- a/bin/varnishtest/tests/t02014.vtc +++ b/bin/varnishtest/tests/t02014.vtc @@ -5,6 +5,9 @@ barrier b2 sock 3 barrier b3 sock 3 barrier b4 sock 3 +barrier b2_err cond 2 +barrier b3_err cond 2 + server s1 { rxreq txresp -bodylen 66300 @@ -64,6 +67,13 @@ client c1 { stream 0 -wait } -run +varnish v1 -vsl_catchup + +logexpect l2 -v v1 -g raw { + expect * * ReqMethod GET + expect * = VCL_call DELIVER +} -start + client c2 { stream 0 { barrier b2 sync @@ -71,6 +81,7 @@ client c2 { stream 1 { txreq -hdr barrier ${b2_sock} + barrier b2_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -78,7 +89,17 @@ client c2 { } -run stream 0 -wait -} -run +} -start + +logexpect l2 -wait +barrier b2_err sync + +client c2 -wait + +logexpect l3 -v v1 -g raw { + expect * * ReqMethod POST + expect * = VCL_call DELIVER +} -start client c3 { stream 0 { @@ -96,6 +117,7 @@ client c3 { stream 1 { txreq -req "POST" -hdr barrier ${b3_sock} -nostrend txdata -data "ok" + barrier b3_err sync txdata -data "fail" rxrst expect rst.err == STREAM_CLOSED @@ -117,4 +139,9 @@ client c3 { } -run stream 0 -wait -} -run +} -start + +logexpect l3 -wait +barrier b3_err sync + +client c3 -wait diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc new file mode 100644 index 000000000..3b7e90e8a --- /dev/null +++ b/bin/varnishtest/tests/t02025.vtc @@ -0,0 +1,49 @@ +varnishtest "h2 reset interrupt" + +barrier b1 sock 2 +barrier b2 sock 2 + +varnish v1 -cliok "param.set feature +http2" +varnish v1 -cliok "param.set debug +syncvsl" +varnish v1 -vcl { + import vtc; + + backend be none; + + sub vcl_recv { + vtc.barrier_sync("${b1_sock}"); + vtc.barrier_sync("${b2_sock}"); + } + + sub vcl_miss { + vtc.panic("unreachable"); + } +} -start + +logexpect l1 -v v1 -g raw -i Debug { + expect * * Debug "^H2RXF RST_STREAM" +} -start + +client c1 { + stream 1 { + txreq + barrier b1 sync + txrst + } -run +} -start + +logexpect l1 -wait +barrier b2 sync + +varnish v1 -vsl_catchup +varnish v1 -expect req_reset == 1 + +# NB: The varnishncsa command below shows a minimal pattern to collect +# "rapid reset" suspects per session, with the IP address. Here rapid +# is interpreted as before a second elapsed. Session VXIDs showing up +# numerous times become increasingly more suspicious. The format can of +# course be extended to add anything else useful for data mining. +shell -expect "1000 ${localhost}" { + varnishncsa -n ${v1_name} -d \ + -q 'Timestamp:Reset[2] < 1.0' -F '%{VSL:Begin[2]}x %h' +} diff --git a/doc/sphinx/reference/vsl.rst b/doc/sphinx/reference/vsl.rst index d8b440a08..98c126d2d 100644 --- a/doc/sphinx/reference/vsl.rst +++ b/doc/sphinx/reference/vsl.rst @@ -77,7 +77,8 @@ Restart Client request is being restarted. Reset - The client closed its connection or reset its stream. Request + The client closed its connection, reset its stream or caused + a stream error that forced Varnish to reset the stream. Request processing is interrupted and considered failed. Pipe handling timestamps diff --git a/lib/libvsc/VSC_main.vsc b/lib/libvsc/VSC_main.vsc index 1bb5ad22e..aa2e36744 100644 --- a/lib/libvsc/VSC_main.vsc +++ b/lib/libvsc/VSC_main.vsc @@ -347,7 +347,9 @@ :oneliner: Requests reset Number of times a client left before the VCL processing of its - requests completed. + requests completed. For HTTP/2 sessions, either the stream was + reset by an RST_STREAM frame from the client, or a stream or + connection error occurred. .. varnish_vsc:: n_object :type: gauge From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] af6fc0889 vtc: Stabilize r3996 and increase coverage Message-ID: <20231024150812.CC7C611E10F@lists.varnish-cache.org> commit af6fc0889937e671bea0049157f90da501e07d29 Author: Dridi Boukelmoune Date: Wed Oct 18 11:02:48 2023 +0200 vtc: Stabilize r3996 and increase coverage With #3998 we need to ensure streams are not going to skip vcl_recv if reset faster than reaching this step for the request task. The alternative to prevent the vcl_req_reset feature from interfering is to simply disable it. diff --git a/bin/varnishtest/tests/r03996.vtc b/bin/varnishtest/tests/r03996.vtc index 3fee3706c..7faf78316 100644 --- a/bin/varnishtest/tests/r03996.vtc +++ b/bin/varnishtest/tests/r03996.vtc @@ -1,6 +1,7 @@ varnishtest "h2 rapid reset" -barrier b1 sock 5 +barrier b1 sock 2 -cyclic +barrier b2 sock 5 -cyclic server s1 { rxreq @@ -16,7 +17,10 @@ varnish v1 -vcl+backend { import vtc; sub vcl_recv { - vtc.barrier_sync("${b1_sock}"); + if (req.http.barrier) { + vtc.barrier_sync(req.http.barrier); + } + vtc.barrier_sync("${b2_sock}"); } } -start @@ -27,6 +31,41 @@ client c1 { expect goaway.err == ENHANCE_YOUR_CALM } -start + stream 1 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 3 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 5 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + stream 7 { + txreq -hdr barrier ${b1_sock} + barrier b1 sync + txrst + } -run + + barrier b2 sync + stream 0 -wait +} -run + +varnish v1 -expect sc_rapid_reset == 1 + +varnish v1 -cliok "param.set feature -vcl_req_reset" + +client c2 { + stream 0 { + rxgoaway + expect goaway.err == ENHANCE_YOUR_CALM + } -start + stream 1 { txreq txrst @@ -44,8 +83,8 @@ client c1 { txrst } -run - barrier b1 sync + barrier b2 sync stream 0 -wait } -run -varnish v1 -expect sc_rapid_reset == 1 +varnish v1 -expect sc_rapid_reset == 2 From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:12 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:12 +0000 (UTC) Subject: [7.3] 9b2b3527f vtc: Missing synchronization in t02025 Message-ID: <20231024150812.EDA7C11E11F@lists.varnish-cache.org> commit 9b2b3527ff594c94a1f250d237432aade8cd7d3a Author: Dridi Boukelmoune Date: Wed Oct 18 13:23:15 2023 +0200 vtc: Missing synchronization in t02025 Noticed while porting #3998 to the 6.0 branch with a varnishtest more sensitive to timing. diff --git a/bin/varnishtest/tests/t02025.vtc b/bin/varnishtest/tests/t02025.vtc index 3b7e90e8a..578dbf5c8 100644 --- a/bin/varnishtest/tests/t02025.vtc +++ b/bin/varnishtest/tests/t02025.vtc @@ -30,11 +30,14 @@ client c1 { barrier b1 sync txrst } -run + expect_close } -start logexpect l1 -wait barrier b2 sync +client c1 -wait + varnish v1 -vsl_catchup varnish v1 -expect req_reset == 1 From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] 72d9e0260 Copy rapid reset parameters to the h2 session Message-ID: <20231024150813.1E4C211E12E@lists.varnish-cache.org> commit 72d9e02604920e7c216d924755a111d4972d4412 Author: Nils Goroll Date: Tue Oct 17 13:47:39 2023 +0200 Copy rapid reset parameters to the h2 session This will allow per-session adjustments and also significantly lower the risk of inconsistent calculations in the rate limit code during parameter changes. Ref #3996 diff --git a/bin/varnishd/http2/cache_http2.h b/bin/varnishd/http2/cache_http2.h index 65ea1d2df..ca2e65993 100644 --- a/bin/varnishd/http2/cache_http2.h +++ b/bin/varnishd/http2/cache_http2.h @@ -194,6 +194,13 @@ struct h2_sess { VTAILQ_HEAD(,h2_req) txqueue; h2_error error; + + // rst rate limit parameters, copied from h2_* parameters + vtim_dur rapid_reset; + int64_t rapid_reset_limit; + vtim_dur rapid_reset_period; + + // rst rate limit state double rst_budget; vtim_real last_rst; }; diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index a006d708f..dc3d4a144 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -328,20 +328,20 @@ h2_rapid_reset(struct worker *wrk, struct h2_sess *h2, struct h2_req *r2) ASSERT_RXTHR(h2); CHECK_OBJ_NOTNULL(r2, H2_REQ_MAGIC); - if (cache_param->h2_rapid_reset_limit == 0) + if (h2->rapid_reset_limit == 0) return (0); now = VTIM_real(); CHECK_OBJ_NOTNULL(r2->req, REQ_MAGIC); AN(r2->req->t_first); - if (now - r2->req->t_first > cache_param->h2_rapid_reset) + if (now - r2->req->t_first > h2->rapid_reset) return (0); d = now - h2->last_rst; - h2->rst_budget += cache_param->h2_rapid_reset_limit * d / - cache_param->h2_rapid_reset_period; + h2->rst_budget += h2->rapid_reset_limit * d / + h2->rapid_reset_period; h2->rst_budget = vmin_t(double, h2->rst_budget, - cache_param->h2_rapid_reset_limit); + h2->rapid_reset_limit); h2->last_rst = now; if (h2->rst_budget < 1.0) { diff --git a/bin/varnishd/http2/cache_http2_session.c b/bin/varnishd/http2/cache_http2_session.c index 29af53093..cdd99d3df 100644 --- a/bin/varnishd/http2/cache_http2_session.c +++ b/bin/varnishd/http2/cache_http2_session.c @@ -127,7 +127,12 @@ h2_init_sess(struct sess *sp, h2_local_settings(&h2->local_settings); h2->remote_settings = H2_proto_settings; h2->decode = decode; - h2->rst_budget = cache_param->h2_rapid_reset_limit; + + h2->rapid_reset = cache_param->h2_rapid_reset; + h2->rapid_reset_limit = cache_param->h2_rapid_reset_limit; + h2->rapid_reset_period = cache_param->h2_rapid_reset_period; + + h2->rst_budget = h2->rapid_reset_limit; h2->last_rst = sp->t_open; AZ(isnan(h2->last_rst)); diff --git a/include/tbl/params.h b/include/tbl/params.h index d5e080758..679d29894 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1243,6 +1243,8 @@ PARAM_SIMPLE( "HTTP2 maximum size of an uncompressed header list." ) +#define H2_RR_INFO \ + "Changes to this parameter affect the default for new HTTP2 sessions" PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, @@ -1254,8 +1256,8 @@ PARAM_SIMPLE( "The upper threshold for how soon an http/2 RST_STREAM frame has " "to be parsed after a HEADERS frame for it to be treated as " "suspect and subjected to the rate limits specified by " - "h2_rapid_reset_limit and h2_rapid_reset_period.", - /* flags */ EXPERIMENTAL, + "h2_rapid_reset_limit and h2_rapid_reset_period.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1269,8 +1271,8 @@ PARAM_SIMPLE( "HTTP2 RST Allowance.\n" "Specifies the maximum number of allowed stream resets issued by\n" "a client over a time period before the connection is closed.\n" - "Setting this parameter to 0 disables the limit.", - /* flags */ EXPERIMENTAL, + "Setting this parameter to 0 disables the limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT, ) PARAM_SIMPLE( @@ -1281,8 +1283,8 @@ PARAM_SIMPLE( /* def */ "60.000", /* units */ "seconds", /* descr */ - "HTTP2 sliding window duration for h2_rapid_reset_limit.", - /* flags */ EXPERIMENTAL|WIZARD, + "HTTP2 sliding window duration for h2_rapid_reset_limit.\n" H2_RR_INFO, + /* flags */ EXPERIMENTAL|DELAYED_EFFECT|WIZARD, ) /*-------------------------------------------------------------------- From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] c9f0a4483 Add vmod_h2 to control rapid_reset parameters per session Message-ID: <20231024150813.38E1611E143@lists.varnish-cache.org> commit c9f0a4483a459d42aaaa39b14ec6e2b834efa275 Author: Nils Goroll Date: Mon Oct 16 16:07:05 2023 +0200 Add vmod_h2 to control rapid_reset parameters per session Conflicts: vmod/automake_boilerplate_h2.am vmod/vmod_h2.vcc diff --git a/include/tbl/params.h b/include/tbl/params.h index 679d29894..1a9fe78ad 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1244,7 +1244,9 @@ PARAM_SIMPLE( ) #define H2_RR_INFO \ - "Changes to this parameter affect the default for new HTTP2 sessions" + "Changes to this parameter affect the default for new HTTP2 " \ + "sessions. vmod_h2(3) can be used to adjust it from VCL." + PARAM_SIMPLE( /* name */ h2_rapid_reset, /* typ */ timeout, diff --git a/vmod/Makefile.am b/vmod/Makefile.am index 29ffcf6bd..da6eaaeff 100644 --- a/vmod/Makefile.am +++ b/vmod/Makefile.am @@ -20,6 +20,7 @@ AM_CPPFLAGS = \ vmod_LTLIBRARIES = include $(srcdir)/automake_boilerplate_blob.am +include $(srcdir)/automake_boilerplate_h2.am include $(srcdir)/automake_boilerplate_cookie.am include $(srcdir)/automake_boilerplate_debug.am include $(srcdir)/automake_boilerplate_directors.am diff --git a/vmod/automake_boilerplate_h2.am b/vmod/automake_boilerplate_h2.am new file mode 100644 index 000000000..905014e23 --- /dev/null +++ b/vmod/automake_boilerplate_h2.am @@ -0,0 +1,35 @@ +# Generated by vmodtool.py --boilerplate. + +vmod_LTLIBRARIES += libvmod_h2.la + +libvmod_h2_la_SOURCES = \ + vmod_h2.c + +libvmod_h2_la_CFLAGS = + +vmodtoolargs_h2 ?= --strict --boilerplate -o vcc_h2_if +vmod_h2_symbols_regex ?= Vmod_h2_Data + +libvmod_h2_la_LDFLAGS = \ + -export-symbols-regex $(vmod_h2_symbols_regex) \ + $(AM_LDFLAGS) \ + $(VMOD_LDFLAGS) + +nodist_libvmod_h2_la_SOURCES = vcc_h2_if.c vcc_h2_if.h + +EXTRA_libvmod_h2_la_DEPENDENCIES = $(nodist_libvmod_h2_la_SOURCES) + +EXTRA_DIST += $(srcdir)/vmod_h2.vcc automake_boilerplate_h2.am + +$(libvmod_h2_la_OBJECTS): vcc_h2_if.h + +vcc_h2_if.h vmod_h2.rst vmod_h2.man.rst: vcc_h2_if.c + +vcc_h2_if.c: $(vmodtool) $(srcdir)/vmod_h2.vcc + @PYTHON@ $(vmodtool) $(vmodtoolargs_h2) $(srcdir)/vmod_h2.vcc + +clean-local: clean-vmod-h2 + +clean-vmod-h2: + rm -f $(nodist_libvmod_h2_la_SOURCES) + rm -f vmod_h2.rst vmod_h2.man.rst diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc new file mode 100644 index 000000000..e6754fc84 --- /dev/null +++ b/vmod/tests/h2_b00000.vtc @@ -0,0 +1,90 @@ +varnishtest "VMOD h2 basics" + +varnish v1 -arg "-p feature=+http2" -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.http2-is = h2.is(); + set resp.body = ""; + return (deliver); + } +} -start + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == false +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.http2-is == true + } -run +} -start + +client c1 -wait +client c2 -wait + +# coverage +varnish v1 -vcl { + import h2; + + backend proforma none; + + sub vcl_recv { + return(synth(200)); + } + + sub vcl_synth { + set resp.http.rapid-reset-o = h2.rapid_reset(10ms); + set resp.http.rapid-reset-n = h2.rapid_reset(); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); + set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); + set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); + set resp.http.rapid-reset-budget = h2.rapid_reset_budget(); + set resp.body = ""; + return (deliver); + } +} + +client c1 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == -1.000 + expect resp.http.rapid-reset-n == -1.000 + expect resp.http.rapid-reset-limit-o == -1 + expect resp.http.rapid-reset-limit-n == -1 + expect resp.http.rapid-reset-period-o == -1.000 + expect resp.http.rapid-reset-period-n == -1.000 + expect resp.http.rapid-reset-budget == -1.000 +} -start + +client c2 { + stream 7 { + txreq + rxresp + expect resp.status == 200 + expect resp.http.rapid-reset-o == 1.000 + expect resp.http.rapid-reset-n == 0.010 + expect resp.http.rapid-reset-limit-o == 0 + expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-period-o == 60.000 + expect resp.http.rapid-reset-period-n == 10.000 + expect resp.http.rapid-reset-budget == 100.000 + } -run +} -start + +client c1 -wait +client c2 -wait diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c new file mode 100644 index 000000000..bded788f4 --- /dev/null +++ b/vmod/vmod_h2.c @@ -0,0 +1,100 @@ +/*- + * Copyright 2023 UPLEX - Nils Goroll Systemoptimierung + * All rights reserved. + * + * Author: Nils Goroll + * + * SPDX-License-Identifier: BSD-2-Clause + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "config.h" + +#include "cache/cache_varnishd.h" + +#include "vcc_h2_if.h" + +#include "cache/cache_transport.h" +#include "http2/cache_http2.h" + +static struct h2_sess * +h2get(VRT_CTX) +{ + struct h2_sess *h2; + uintptr_t *up; + + CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req->transport != &HTTP2_transport) + return (NULL); + AZ(SES_Get_proto_priv(ctx->req->sp, &up)); + CAST_OBJ_NOTNULL(h2, (void *)*up, H2_SESS_MAGIC); + return (h2); +} +VCL_BOOL +vmod_is(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + return (h2 != NULL); +} + +#define GETSET(type, name, argname) \ +type \ +vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ +{ \ + struct h2_sess *h2 = h2get(ctx); \ + type r; \ + \ + if (h2 == NULL) \ + return (-1); \ + \ + if (! args->valid_ ## argname) \ + return (h2->name); \ + if (h2->name == args->argname) \ + return (h2->name); \ + \ + Lck_Lock(&h2->sess->mtx); \ + r = h2->name; \ + if (h2->name != args->argname) { \ + h2->name = args->argname; \ + h2->rst_budget = h2->rapid_reset_limit; \ + h2->last_rst = ctx->now; \ + } \ + Lck_Unlock(&h2->sess->mtx); \ + return (r); \ +} + +GETSET(VCL_DURATION, rapid_reset, threshold) +GETSET(VCL_INT, rapid_reset_limit, number) +GETSET(VCL_DURATION, rapid_reset_period, duration) + +VCL_REAL +vmod_rapid_reset_budget(VRT_CTX) +{ + struct h2_sess *h2 = h2get(ctx); + + if (h2 == NULL) + return (-1); + + return (h2->rst_budget); +} diff --git a/vmod/vmod_h2.vcc b/vmod/vmod_h2.vcc new file mode 100644 index 000000000..cd7529c9f --- /dev/null +++ b/vmod/vmod_h2.vcc @@ -0,0 +1,88 @@ +#- +# Copyright 2023 UPLEX - Nils Goroll Systemoptimierung +# All rights reserved. +# +# Author: Nils Goroll +# +# SPDX-License-Identifier: BSD-2-Clause +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +$ABI strict +$Module h2 3 "Module to control the built-in HTTP2 transport" + +DESCRIPTION +=========== + +This VMOD contains functions to control the HTTP2 transport built into +Varnish-Cache. + +$Function BOOL is() + +Returns true when called on a session handled by the built-in HTTP2 transport. + +$Function DURATION rapid_reset([DURATION threshold]) + +Get and optionally set the ``h2_rapid_reset`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function INT rapid_reset_limit([INT number]) + +Get and optionally set the ``h2_rapid_reset_limit`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function DURATION rapid_reset_period([DURATION duration]) + +Get and optionally set the ``h2_rapid_reset_period`` parameter (See +:ref:`varnishd(1)`) for this HTTP2 session only. + +Returns -1 when used outside the HTTP2 transport. Otherwise returns +the previous value. + +If the call leads to a change in the rate limit parameters, the +current budget as retuned by +`h2.rapid_reset_budget()`_ is reset. + +$Function REAL rapid_reset_budget() + +Return how many RST frames classified as "rapid" the client is still +allowed to send before the session is going to be closed. + +SEE ALSO +======== + +* :ref:`varnishd(1)` +* :ref:`vsl(7)` From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] bc36c9961 Start with a reasonable default for h2_rapid_reset_limit Message-ID: <20231024150813.57D7C11E15B@lists.varnish-cache.org> commit bc36c9961be1a985647706423da94236b04d832a Author: Nils Goroll Date: Wed Oct 18 13:53:53 2023 +0200 Start with a reasonable default for h2_rapid_reset_limit as agreed on IRC. diff --git a/include/tbl/params.h b/include/tbl/params.h index 1a9fe78ad..4ee8d01e1 100644 --- a/include/tbl/params.h +++ b/include/tbl/params.h @@ -1267,7 +1267,7 @@ PARAM_SIMPLE( /* typ */ uint, /* min */ "0", /* max */ NULL, - /* def */ "0", + /* def */ "100", /* units */ NULL, /* descr */ "HTTP2 RST Allowance.\n" From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] 2d50d0d6a Adjust test case to previous commit Message-ID: <20231024150813.760F211E170@lists.varnish-cache.org> commit 2d50d0d6a38397b1a40caf33e3846f75fa7a70b7 Author: Nils Goroll Date: Wed Oct 18 14:01:33 2023 +0200 Adjust test case to previous commit (sorry) diff --git a/vmod/tests/h2_b00000.vtc b/vmod/tests/h2_b00000.vtc index e6754fc84..aedb6aad8 100644 --- a/vmod/tests/h2_b00000.vtc +++ b/vmod/tests/h2_b00000.vtc @@ -48,7 +48,7 @@ varnish v1 -vcl { sub vcl_synth { set resp.http.rapid-reset-o = h2.rapid_reset(10ms); set resp.http.rapid-reset-n = h2.rapid_reset(); - set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(100); + set resp.http.rapid-reset-limit-o = h2.rapid_reset_limit(10); set resp.http.rapid-reset-limit-n = h2.rapid_reset_limit(); set resp.http.rapid-reset-period-o = h2.rapid_reset_period(10s); set resp.http.rapid-reset-period-n = h2.rapid_reset_period(); @@ -78,11 +78,11 @@ client c2 { expect resp.status == 200 expect resp.http.rapid-reset-o == 1.000 expect resp.http.rapid-reset-n == 0.010 - expect resp.http.rapid-reset-limit-o == 0 - expect resp.http.rapid-reset-limit-n == 100 + expect resp.http.rapid-reset-limit-o == 100 + expect resp.http.rapid-reset-limit-n == 10 expect resp.http.rapid-reset-period-o == 60.000 expect resp.http.rapid-reset-period-n == 10.000 - expect resp.http.rapid-reset-budget == 100.000 + expect resp.http.rapid-reset-budget == 10.000 } -run } -start From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] ed668f41b Flexelinting Message-ID: <20231024150813.9598011E181@lists.varnish-cache.org> commit ed668f41bf24adef80ca368cacb7690b8e2b70f9 Author: Nils Goroll Date: Wed Oct 18 15:17:11 2023 +0200 Flexelinting we can not make the parameter const because API. diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c index bded788f4..45642f140 100644 --- a/vmod/vmod_h2.c +++ b/vmod/vmod_h2.c @@ -65,6 +65,8 @@ vmod_ ## name(VRT_CTX, struct VARGS(name) *args) \ struct h2_sess *h2 = h2get(ctx); \ type r; \ \ + (void)args; \ + \ if (h2 == NULL) \ return (-1); \ \ From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] 852eab6fa vmod_h2: VRT_fail if called outside of client context Message-ID: <20231024150813.B662C11E18A@lists.varnish-cache.org> commit 852eab6fa16d2ee90523e49060c842f2e742c98f Author: Dag Haavi Finstad Date: Wed Oct 18 15:32:32 2023 +0200 vmod_h2: VRT_fail if called outside of client context Conflicts: vmod/vmod_h2.c diff --git a/vmod/vmod_h2.c b/vmod/vmod_h2.c index 45642f140..f62105384 100644 --- a/vmod/vmod_h2.c +++ b/vmod/vmod_h2.c @@ -43,7 +43,12 @@ h2get(VRT_CTX) uintptr_t *up; CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); - CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); // $Restrict client + if (ctx->req == NULL) { + VRT_fail(ctx, + "vmod_h2 can only be called from client-side VCL."); + return (NULL); + } + CHECK_OBJ_NOTNULL(ctx->req, REQ_MAGIC); if (ctx->req->transport != &HTTP2_transport) return (NULL); AZ(SES_Get_proto_priv(ctx->req->sp, &up)); From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] 2196bf150 Redo H2 field validation Message-ID: <20231024150813.D143F11E194@lists.varnish-cache.org> commit 2196bf150b9936cac5dcdba8de2d83bb97c52929 Author: Poul-Henning Kamp Date: Tue Aug 22 08:41:21 2023 +0000 Redo H2 field validation Fixes #3952 diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 36570a751..26be1b4d1 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -39,6 +39,7 @@ #include "http2/cache_http2.h" #include "vct.h" +// rfc9113,l,2493,2528 static h2_error h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) { @@ -48,46 +49,80 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) AN(b); assert(namelen >= 2); /* 2 chars from the ': ' that we added */ assert(namelen <= len); + assert(b[namelen - 2] == ':'); + assert(b[namelen - 1] == ' '); if (namelen == 2) { VSLb(hp->vsl, SLT_BogoHeader, "Empty name"); return (H2SE_PROTOCOL_ERROR); } - for (p = b; p < b + len; p++) { - if (p < b + (namelen - 2)) { - /* Check valid name characters */ - if (p == b && *p == ':') - continue; /* pseudo-header */ + // VSLb(hp->vsl, SLT_Debug, "CHDR [%.*s] [%.*s]", + // (int)namelen, b, (int)(len - namelen), b + namelen); + + int state = 0; + for (p = b; p < b + namelen - 2; p++) { + switch(state) { + case 0: /* First char of field */ + state = 1; + if (*p == ':') + break; + /* FALL_THROUGH */ + case 1: /* field name */ + if (*p <= 0x20 || *p >= 0x7f) { + VSLb(hp->vsl, SLT_BogoHeader, + "Illegal field header name (control): %.*s", + (int)(len > 20 ? 20 : len), b); + return (H2SE_PROTOCOL_ERROR); + } if (isupper(*p)) { VSLb(hp->vsl, SLT_BogoHeader, - "Illegal header name (upper-case): %.*s", + "Illegal field header name (upper-case): %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } - if (vct_istchar(*p)) { - /* XXX: vct should have a proper class for - this avoiding two checks */ - continue; + if (!vct_istchar(*p) || *p == ':') { + VSLb(hp->vsl, SLT_BogoHeader, + "Illegal field header name (non-token): %.*s", + (int)(len > 20 ? 20 : len), b); + return (H2SE_PROTOCOL_ERROR); } - VSLb(hp->vsl, SLT_BogoHeader, - "Illegal header name: %.*s", - (int)(len > 20 ? 20 : len), b); - return (H2SE_PROTOCOL_ERROR); - } else if (p < b + namelen) { - /* ': ' added by us */ - assert(*p == ':' || *p == ' '); - } else { - /* Check valid value characters */ - if (!vct_isctl(*p) || vct_issp(*p)) - continue; - VSLb(hp->vsl, SLT_BogoHeader, - "Illegal header value: %.*s", - (int)(len > 20 ? 20 : len), b); - return (H2SE_PROTOCOL_ERROR); + break; + default: + WRONG("http2 field name validation state"); } } + state = 2; + for (p = b + namelen; p < b + len; p++) { + switch(state) { + case 2: /* First char of field */ + if (*p == ' ' || *p == 0x09) { + VSLb(hp->vsl, SLT_BogoHeader, + "Illegal field value start %.*s", + (int)(len > 20 ? 20 : len), b); + return (H2SE_PROTOCOL_ERROR); + } + state = 3; + /* FALL_THROUGH */ + case 3: /* field value character */ + if (*p != 0x09 && (*p < 0x20 || *p == 0x7f)) { + VSLb(hp->vsl, SLT_BogoHeader, + "Illegal field value (control) %.*s", + (int)(len > 20 ? 20 : len), b); + return (H2SE_PROTOCOL_ERROR); + } + break; + default: + WRONG("http2 field value validation state"); + } + } + if (state == 3 && b[len - 1] <= 0x20) { + VSLb(hp->vsl, SLT_BogoHeader, + "Illegal val (end) %.*s", + (int)(len > 20 ? 20 : len), b); + return (H2SE_PROTOCOL_ERROR); + } return (0); } @@ -271,6 +306,7 @@ h2h_decode_fini(const struct h2_sess *h2) * block. This is a connection level error. * * H2E_PROTOCOL_ERROR: Malformed header or duplicate pseudo-header. + * Violation of field name/value charsets */ h2_error h2h_decode_bytes(struct h2_sess *h2, const uint8_t *in, size_t in_l) diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index cfd843da3..59c7fe5d7 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -46,3 +46,47 @@ client c1 { rxrst } -run } -run + +varnish v1 -vsl_catchup + +client c1 { + stream 1 { + txreq -hdr "fo o" " bar" + rxrst + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" " " + rxrst + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr ":foo" "bar" + rxrst + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" "b\x0car" + rxrst + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "f o" "bar" + rxrst + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "f: o" "bar" + rxrst + } -run +} -run From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:13 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:13 +0000 (UTC) Subject: [7.3] 42b4d320c Slightly more coverage & consistency Message-ID: <20231024150813.EAA3111E1A1@lists.varnish-cache.org> commit 42b4d320c3115d8477768deb5fe0f9bf6f0c48eb Author: Poul-Henning Kamp Date: Tue Aug 22 10:58:30 2023 +0000 Slightly more coverage & consistency diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 26be1b4d1..b05ab31e0 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -119,7 +119,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) } if (state == 3 && b[len - 1] <= 0x20) { VSLb(hp->vsl, SLT_BogoHeader, - "Illegal val (end) %.*s", + "Illegal field value (end) %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index 59c7fe5d7..5f5f434bf 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -90,3 +90,10 @@ client c1 { rxrst } -run } -run + +client c1 { + stream 1 { + txreq -hdr "foo" "bar " + rxrst + } -run +} -run From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] ca88d4346 hpack: Turn header validation state into an enum Message-ID: <20231024150814.2DFFC11E1AA@lists.varnish-cache.org> commit ca88d4346555c2e9e6f9a255ba93e6332ed4a6e7 Author: Walid Boudebouda Date: Fri Sep 8 16:55:18 2023 +0200 hpack: Turn header validation state into an enum Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index b05ab31e0..7d9625b41 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -44,6 +44,12 @@ static h2_error h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) { const char *p; + enum { + FLD_NAME_FIRST, + FLD_NAME, + FLD_VALUE_FIRST, + FLD_VALUE + } state; CHECK_OBJ_NOTNULL(hp, HTTP_MAGIC); AN(b); @@ -60,15 +66,15 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) // VSLb(hp->vsl, SLT_Debug, "CHDR [%.*s] [%.*s]", // (int)namelen, b, (int)(len - namelen), b + namelen); - int state = 0; + state = FLD_NAME_FIRST; for (p = b; p < b + namelen - 2; p++) { switch(state) { - case 0: /* First char of field */ - state = 1; + case FLD_NAME_FIRST: + state = FLD_NAME; if (*p == ':') break; /* FALL_THROUGH */ - case 1: /* field name */ + case FLD_NAME: if (*p <= 0x20 || *p >= 0x7f) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field header name (control): %.*s", @@ -93,19 +99,19 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) } } - state = 2; + state = FLD_VALUE_FIRST; for (p = b + namelen; p < b + len; p++) { switch(state) { - case 2: /* First char of field */ + case FLD_VALUE_FIRST: if (*p == ' ' || *p == 0x09) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value start %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } - state = 3; + state = FLD_VALUE; /* FALL_THROUGH */ - case 3: /* field value character */ + case FLD_VALUE: if (*p != 0x09 && (*p < 0x20 || *p == 0x7f)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (control) %.*s", @@ -117,7 +123,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) WRONG("http2 field value validation state"); } } - if (state == 3 && b[len - 1] <= 0x20) { + if (state == FLD_VALUE && b[len - 1] <= 0x20) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (end) %.*s", (int)(len > 20 ? 20 : len), b); From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] 084bc093a hpack: Check illegal header blanks with vct_issp() Message-ID: <20231024150814.4FF5D11E1B0@lists.varnish-cache.org> commit 084bc093a24725c6516a781f3ddff3967ef25624 Author: Walid Boudebouda Date: Fri Sep 8 17:25:06 2023 +0200 hpack: Check illegal header blanks with vct_issp() Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 7d9625b41..b57fda191 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -103,7 +103,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) for (p = b + namelen; p < b + len; p++) { switch(state) { case FLD_VALUE_FIRST: - if (*p == ' ' || *p == 0x09) { + if (vct_issp(*p)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value start %.*s", (int)(len > 20 ? 20 : len), b); @@ -123,7 +123,7 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) WRONG("http2 field value validation state"); } } - if (state == FLD_VALUE && b[len - 1] <= 0x20) { + if (state == FLD_VALUE && vct_issp(b[len - 1])) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field value (end) %.*s", (int)(len > 20 ? 20 : len), b); From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] 00cca8770 hpack: Validate header values with vct_ishdrval() Message-ID: <20231024150814.738B111E1B7@lists.varnish-cache.org> commit 00cca87709c6c06fccd8d18df9c61eca652afe83 Author: Walid Boudebouda Date: Fri Sep 8 17:37:26 2023 +0200 hpack: Validate header values with vct_ishdrval() Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index b57fda191..74e1d8520 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -112,9 +112,9 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) state = FLD_VALUE; /* FALL_THROUGH */ case FLD_VALUE: - if (*p != 0x09 && (*p < 0x20 || *p == 0x7f)) { + if (!vct_ishdrval(*p)) { VSLb(hp->vsl, SLT_BogoHeader, - "Illegal field value (control) %.*s", + "Illegal field value %.*s", (int)(len > 20 ? 20 : len), b); return (H2SE_PROTOCOL_ERROR); } From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] 06f04eceb hpack: Remove redundant/incorrect header validation Message-ID: <20231024150814.908DA11E1C4@lists.varnish-cache.org> commit 06f04eceb1af53db7b38d3d4d19a2300c63ee2be Author: Walid Boudebouda Date: Fri Sep 8 17:13:19 2023 +0200 hpack: Remove redundant/incorrect header validation Control characters will be caught by vct_ishdrval() anyways, but this condition would also reject allowed obs-text non-ASCII characters. Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 74e1d8520..9c179064b 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -75,12 +75,6 @@ h2h_checkhdr(const struct http *hp, const char *b, size_t namelen, size_t len) break; /* FALL_THROUGH */ case FLD_NAME: - if (*p <= 0x20 || *p >= 0x7f) { - VSLb(hp->vsl, SLT_BogoHeader, - "Illegal field header name (control): %.*s", - (int)(len > 20 ? 20 : len), b); - return (H2SE_PROTOCOL_ERROR); - } if (isupper(*p)) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal field header name (upper-case): %.*s", From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] aa3cc8133 vtc: More HPACK header validation coverage Message-ID: <20231024150814.BCB6B11E1D2@lists.varnish-cache.org> commit aa3cc813349c9d960171e27cc129f83c3e49d464 Author: Walid Boudebouda Date: Fri Sep 8 17:54:43 2023 +0200 vtc: More HPACK header validation coverage Adds coverage for tab characters at start/end of field value. Regarding the "fo o" " bar" header, it cumulates an error in the name and another in the value, but only one of them will trigger the expected PROTOCOL_ERROR. Only the invalid "fo o" is checked now, and the other error is part of the new coverage. Signed-off-by: Dridi Boukelmoune diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index 5f5f434bf..388f3a70a 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -30,6 +30,7 @@ client c1 { stream 1 { txreq -url "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -37,6 +38,7 @@ client c1 { stream 1 { txreq -scheme "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -44,6 +46,7 @@ client c1 { stream 1 { txreq -req "" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -51,8 +54,9 @@ varnish v1 -vsl_catchup client c1 { stream 1 { - txreq -hdr "fo o" " bar" + txreq -hdr "foo" " bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -60,6 +64,7 @@ client c1 { stream 1 { txreq -hdr "foo" " " rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -67,6 +72,7 @@ client c1 { stream 1 { txreq -hdr ":foo" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -74,6 +80,7 @@ client c1 { stream 1 { txreq -hdr "foo" "b\x0car" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -81,6 +88,7 @@ client c1 { stream 1 { txreq -hdr "f o" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -88,6 +96,7 @@ client c1 { stream 1 { txreq -hdr "f: o" "bar" rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run @@ -95,5 +104,22 @@ client c1 { stream 1 { txreq -hdr "foo" "bar " rxrst + expect rst.err == PROTOCOL_ERROR + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" " bar" + rxrst + expect rst.err == PROTOCOL_ERROR + } -run +} -run + +client c1 { + stream 1 { + txreq -hdr "foo" "bar " + rxrst + expect rst.err == PROTOCOL_ERROR } -run } -run From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:14 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:14 +0000 (UTC) Subject: [7.3] b582a1c1c vtc: Coverage for h2 empty header in t02023 Message-ID: <20231024150814.E164011E1DC@lists.varnish-cache.org> commit b582a1c1c68c2d6a48dcb5fd11d17e2f5084a55b Author: Dridi Boukelmoune Date: Thu Sep 14 12:59:21 2023 +0200 vtc: Coverage for h2 empty header in t02023 diff --git a/bin/varnishtest/tests/t02023.vtc b/bin/varnishtest/tests/t02023.vtc index 388f3a70a..13c4cb445 100644 --- a/bin/varnishtest/tests/t02023.vtc +++ b/bin/varnishtest/tests/t02023.vtc @@ -1,4 +1,4 @@ -varnishtest "Empty pseudo-headers" +varnishtest "Empty and invalid headers" server s1 { rxreq @@ -50,6 +50,14 @@ client c1 { } -run } -run +client c1 { + stream 1 { + txreq -hdr "empty" "" + rxresp + expect resp.status == 200 + } -run +} -run + varnish v1 -vsl_catchup client c1 { From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:15 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:15 +0000 (UTC) Subject: [7.3] edc29dfa2 vmod_h2: Polish manual Message-ID: <20231024150815.0B88E11E1F3@lists.varnish-cache.org> commit edc29dfa2656fc79d572fb9e39b6fd798ce20998 Author: Dridi Boukelmoune Date: Tue Oct 24 14:13:39 2023 +0200 vmod_h2: Polish manual diff --git a/vmod/vmod_h2.vcc b/vmod/vmod_h2.vcc index cd7529c9f..b96ac5a8b 100644 --- a/vmod/vmod_h2.vcc +++ b/vmod/vmod_h2.vcc @@ -34,7 +34,8 @@ DESCRIPTION =========== This VMOD contains functions to control the HTTP2 transport built into -Varnish-Cache. +Varnish-Cache. Using VMOD outside of a client context will immediately +fail the VCL transaction. $Function BOOL is() @@ -49,8 +50,7 @@ Returns -1 when used outside the HTTP2 transport. Otherwise returns the previous value. If the call leads to a change in the rate limit parameters, the -current budget as retuned by -`h2.rapid_reset_budget()`_ is reset. +current budget as retuned by `h2.rapid_reset_budget()`_ is reset. $Function INT rapid_reset_limit([INT number]) @@ -61,8 +61,7 @@ Returns -1 when used outside the HTTP2 transport. Otherwise returns the previous value. If the call leads to a change in the rate limit parameters, the -current budget as retuned by -`h2.rapid_reset_budget()`_ is reset. +current budget as retuned by `h2.rapid_reset_budget()`_ is reset. $Function DURATION rapid_reset_period([DURATION duration]) @@ -73,8 +72,7 @@ Returns -1 when used outside the HTTP2 transport. Otherwise returns the previous value. If the call leads to a change in the rate limit parameters, the -current budget as retuned by -`h2.rapid_reset_budget()`_ is reset. +current budget as retuned by `h2.rapid_reset_budget()`_ is reset. $Function REAL rapid_reset_budget() From dridi.boukelmoune at gmail.com Tue Oct 24 15:08:15 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Tue, 24 Oct 2023 15:08:15 +0000 (UTC) Subject: [7.3] a6223ded1 build: Generate and install man/vmod_h2.3 Message-ID: <20231024150815.3317511E200@lists.varnish-cache.org> commit a6223ded144980d1c8f1a1c904de5ffb2ac870dd Author: Dridi Boukelmoune Date: Tue Oct 24 14:20:47 2023 +0200 build: Generate and install man/vmod_h2.3 diff --git a/man/Makefile.am b/man/Makefile.am index b78dc7cfe..a1f4896c1 100644 --- a/man/Makefile.am +++ b/man/Makefile.am @@ -25,7 +25,8 @@ dist_man_MANS = \ vmod_vtc.3 \ vmod_blob.3 \ vmod_unix.3 \ - vmod_proxy.3 + vmod_proxy.3 \ + vmod_h2.3 CLEANFILES = $(dist_man_MANS) @@ -136,4 +137,7 @@ vmod_unix.3: $(top_builddir)/vmod/vmod_unix.man.rst vmod_proxy.3: $(top_builddir)/vmod/vmod_proxy.man.rst $(BUILD_MAN) $? $@ +vmod_h2.3: $(top_builddir)/vmod/vmod_h2.man.rst + $(BUILD_MAN) $? $@ + .NOPATH: $(dist_man_MANS) From dridi.boukelmoune at gmail.com Wed Oct 25 07:46:11 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 07:46:11 +0000 (UTC) Subject: [master] 2c2ef29b6 mgt_param: Remove stale comment Message-ID: <20231025074611.F098211B47C@lists.varnish-cache.org> commit 2c2ef29b6b2d34e12343aa7f9489d07989cfb9a3 Author: Dridi Boukelmoune Date: Wed Oct 25 09:14:23 2023 +0200 mgt_param: Remove stale comment We've had contextual min/max/default values in the param.show and param.set output and the manual for a while now. diff --git a/bin/varnishd/mgt/mgt_param.c b/bin/varnishd/mgt/mgt_param.c index b34fe6772..1cfd789ba 100644 --- a/bin/varnishd/mgt/mgt_param.c +++ b/bin/varnishd/mgt/mgt_param.c @@ -857,11 +857,6 @@ MCF_DumpRstParam(void) MCF_DYN_REASON(Minimum, min); MCF_DYN_REASON(Maximum, max); #undef MCF_DYN_REASON - /* - * XXX: we should mark the params with one/two flags - * XXX: that say if ->min/->max are valid, so we - * XXX: can emit those also in help texts. - */ if (pp->flags & ~DOCS_FLAGS) { printf("\t* Flags: "); q = ""; From phk at FreeBSD.org Wed Oct 25 11:58:08 2023 From: phk at FreeBSD.org (Poul-Henning Kamp) Date: Wed, 25 Oct 2023 11:58:08 +0000 (UTC) Subject: [master] 111e4f3d2 Add a one more rant about H2 Message-ID: <20231025115808.3B5595CE1@lists.varnish-cache.org> commit 111e4f3d2fdd151306a90b4ac050697f9a7c4d5d Author: Poul-Henning Kamp Date: Wed Oct 25 11:56:44 2023 +0000 Add a one more rant about H2 diff --git a/doc/sphinx/phk/h2againagainagain.rst b/doc/sphinx/phk/h2againagainagain.rst new file mode 100644 index 000000000..4d49f9571 --- /dev/null +++ b/doc/sphinx/phk/h2againagainagain.rst @@ -0,0 +1,122 @@ +.. _phk_h2_again_again_again: + +On the deck-chairs of HTTP/2 +============================ + +Last week some people found out that the HTTP/2 protocol is not so +fantastic when it comes to Denial-of-Service attacks. + +Funny that. + +The DoS vulnerability "found" last week, and proudly declared +"zero-day" in the heroic sagas of supreme DevOps-ness, can be found +in section 6.5.2, page 38 bottom, of RFC7540, from 2015: + +.. code-block:: none + + SETTINGS_MAX_CONCURRENT_STREAMS (0x3): Indicates the maximum number + of concurrent streams that the sender will allow. This limit is + directional: it applies to the number of streams that the sender + permits the receiver to create. Initially, there is no limit to + this value. It is recommended that this value be no smaller than + 100, so as to not unnecessarily limit parallelism. + +Long before that RFC was made official, some of us warned about +``there is no limit``, but that would not be a problem because "We +have enough CPU's for that", we were told, mainly by the people +from the very large company who pushed H2 down our throat. + +Overall HTTP/2 has been a solid disappointment, at least if you +believed any of the lofty promises and hype used to market it. + +Yes, we got fewer TCP connections, which is nice when there are +only sixty-something thousand port numbers available, and yes we +got some parallelism per TCP connection. + +Of course the price for that parallelism is that a dropped +packet no longer delays a single resource: Now it delays *everything*. + +During the ratification period, this got the nickname +"Head-Of-Line-Blocking" or just "HoL-blocking", but that would also +not be a problem because "the ISPs would be forced to (finally) fix +that" - said some guy with a Google Fiber connection to his Silly +Valley home. + +But we also got, as people "discovered" last week, a lot more +sensitive to DoS attacks - by design - because the entire point +of H2 was to get as much work done as soon as possible. + +Then there is the entire section in the H2 RFC about "Stream +Priority", intended to reduce the risk of people reading the +words in the article until all the "monetization" were in place. + +As far as I know, nobody ever got that to do anything useful, +unless they had somebody standing on the toes 24*7, pointing their +nose at the ever-moving moon, while reciting Chaucer from memory. +I think all browsers just ignore it now. + +Oh? and "PUSH": The against-all-principles reverse primitive, so +the server could tell the browser, that come hell or high water, +you will need these advertisements right away. + +Nobody got that working either. + +But my all time personal favorite is this one: + +The static HPACK compression table contains entries for the headers +``proxy-authentication`` and ``proxy-authorization``, which by +definition can never appear in a H2 connection. But they were in +some random dataset somebody used to construct the table, and "it +was far too late to change that now", because we were in a hurry +to get H2 deployed. + +We have a saying in Danish: ?Hastv?rk er lastv?rk?, which roughly +translates to ?Hurry and be Sorry?, and well, yeah... + +(If you want to read what I thought at the time, this is a draft +I never completed because I realized that H2 was just going to be a +rubber-stamping exercise: https://phk.freebsd.dk/sagas/httpbis/) + +Once it became clear that H2 would happen, DoS vulnerabilities and +all, I dialed down my complaining about the DoS problems, partly +because I saw no reason to actively tell the script-kiddies and +criminals what to do, but mostly because clearly nobody was listening: +"It's a bypass. You've got to build bypasses." + +Somewhat reluctantly we implemented H2 in Varnish, because people +told us they really, really would need this, it was going to be a +checkbox item for the C-team once they read about it in the WSJ, +and all the cool kids already had it &c &c. + +We didn't do a bad job of it, but we could probably have done it +even better, if we had felt it would worth it. + +But given that the ink on H2 was barely dry before QUIC was being +launched to replace it, and given that DoS vulnerabilities were +literally written into the standard, we figured that H2 was unlikely +to overtake the hot plate and the deep water as Inventions of The +Century, and economized our resources accordingly. + +I am pleasantly surprised that it took the bad guys this long to +weaponize H2. Yes, there are 100 pages in the main RFC and neither +Hemmingway or Prachett were on the team, but eight years ? Of +course there is no knowing how long time it has been a secret weapon +in some country's arsenal of "cyber weapons". + +But now that the bad guys have found it, and weaponized it, what do we do ? + +My advice: + +Unless you have solid numbers to show that H2 is truly improving +things for you and your clients, you should just turn it off. +Remember to also remove it from the ALPN string in hitch or whatever +TLS off-loader you use. + +If for some reason you cannot turn H2 off, we are implementing some +parameters which can help mitigate the DoS attacks, and we will +roll new releases to bring those to you. + +But other than that, please do not expect us to spend a lot of time +rearranging the deck-chairs of HTTP/2. + +*/phk* diff --git a/doc/sphinx/phk/index.rst b/doc/sphinx/phk/index.rst index 0aa550b48..8b40061ed 100644 --- a/doc/sphinx/phk/index.rst +++ b/doc/sphinx/phk/index.rst @@ -13,6 +13,7 @@ You may or may not want to know what Poul-Henning thinks. .. toctree:: :maxdepth: 1 + h2againagainagain.rst cheri7.rst cheri6.rst cheri5.rst From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:08 +0000 (UTC) Subject: [7.3] 1a3cf99f9 fix bug in abstract sockets Message-ID: <20231025143308.4CB2A6E4E6@lists.varnish-cache.org> commit 1a3cf99f9fb7fb2d64e7cbd9f4d102ad59aa1674 Author: Walid Boudebouda Date: Thu Mar 16 18:32:35 2023 +0100 fix bug in abstract sockets with uds abstract sockets, sun_path should start with a NULL character followed by the socket's name. The name is not considered to be NULL terminated and can contain NULL bytes which have no special meaning. socklen is used to determine the length of name and must be set to the length of the struct sockaddr_un up to the last character of name, otherwise the 108 characters of sun_path will be treated as the name of the socket, including NULL bytes. diff --git a/bin/varnishtest/vtc_client.c b/bin/varnishtest/vtc_client.c index fb7277d5c..8fb3bdd3e 100644 --- a/bin/varnishtest/vtc_client.c +++ b/bin/varnishtest/vtc_client.c @@ -127,7 +127,9 @@ uds_open(void *priv, const struct sockaddr_un *uds) double *p; int s, i, tmo; struct pollfd fds[1]; - socklen_t sl = sizeof(*uds); + socklen_t sl; + + sl = VUS_socklen(uds); AN(priv); AN(uds); diff --git a/include/vus.h b/include/vus.h index 20d56fd15..c818f3939 100644 --- a/include/vus.h +++ b/include/vus.h @@ -36,6 +36,7 @@ int VUS_resolver(const char *path, vus_resolved_f *func, void *priv, const char **err); int VUS_bind(const struct sockaddr_un *uds, const char **errp); int VUS_connect(const char *path, int msec); +unsigned int VUS_socklen(const struct sockaddr_un *uds); static inline int VUS_is(const char *path) diff --git a/lib/libvarnish/vus.c b/lib/libvarnish/vus.c index c9920ef28..a110a1ec1 100644 --- a/lib/libvarnish/vus.c +++ b/lib/libvarnish/vus.c @@ -86,6 +86,8 @@ VUS_resolver(const char *path, vus_resolved_f *func, void *priv, if (ret) return (ret); + assert(uds.sun_path[1] != '\0'); + if (func != NULL) ret = func(priv, &uds); return (ret); @@ -95,7 +97,9 @@ int VUS_bind(const struct sockaddr_un *uds, const char **errp) { int sd, e; - socklen_t sl = sizeof(*uds); + socklen_t sl; + + sl = VUS_socklen(uds); if (errp != NULL) *errp = NULL; @@ -133,13 +137,18 @@ VUS_connect(const char *path, int msec) int s, i; struct pollfd fds[1]; struct sockaddr_un uds; - socklen_t sl = (socklen_t) sizeof(uds); + socklen_t sl; if (path == NULL) return (-1); i = sun_init(&uds, path, NULL); if (i) return (i); + + assert(uds.sun_path[1] != '\0'); + + sl = VUS_socklen(&uds); + AN(sl); s = socket(PF_UNIX, SOCK_STREAM, 0); @@ -182,3 +191,19 @@ VUS_connect(const char *path, int msec) return (VTCP_connected(s)); } + +socklen_t +VUS_socklen(const struct sockaddr_un *uds) +{ + socklen_t sl; + char *p; + if (*uds->sun_path) + sl = sizeof(*uds); + else { + p = strchr(uds->sun_path + 1, '\0'); + assert(p != NULL); + sl = p - (const char*)uds; + } + assert(sl <= sizeof(*uds)); + return sl; +} From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:08 +0000 (UTC) Subject: [7.3] 80018d09e Constify (from flexelint) Message-ID: <20231025143308.63DFC6E4E9@lists.varnish-cache.org> commit 80018d09e59375e186e2b02498bdacca9b494eb0 Author: Nils Goroll Date: Mon Mar 20 11:58:51 2023 +0100 Constify (from flexelint) diff --git a/lib/libvarnish/vus.c b/lib/libvarnish/vus.c index a110a1ec1..01187442f 100644 --- a/lib/libvarnish/vus.c +++ b/lib/libvarnish/vus.c @@ -196,7 +196,7 @@ socklen_t VUS_socklen(const struct sockaddr_un *uds) { socklen_t sl; - char *p; + const char *p; if (*uds->sun_path) sl = sizeof(*uds); else { From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:08 +0000 (UTC) Subject: [7.3] 7bf4d5bea h2: Relax "no //" URLs requirement Message-ID: <20231025143308.8C7FC6E4F2@lists.varnish-cache.org> commit 7bf4d5bea9ec638ad1a98731817489c0f677606a Author: Dag Haavi Finstad Date: Mon Apr 3 10:26:51 2023 +0200 h2: Relax "no //" URLs requirement This requirement was dropped in the updated rfc 9113. Fixes: #3911 diff --git a/bin/varnishd/http2/cache_http2_hpack.c b/bin/varnishd/http2/cache_http2_hpack.c index 9c179064b..b5451eb22 100644 --- a/bin/varnishd/http2/cache_http2_hpack.c +++ b/bin/varnishd/http2/cache_http2_hpack.c @@ -170,10 +170,9 @@ h2h_addhdr(struct http *hp, char *b, size_t namelen, size_t len) n = HTTP_HDR_URL; disallow_empty = 1; - // rfc7540,l,3060,3071 - if (((len > 0 && *b != '/') || - (len > 1 && *(b+1) == '/')) && - (strncmp(b, "*", len) != 0)) { + // rfc9113,l,2693,2705 + if (len > 0 && *b != '/' && + strncmp(b, "*", len) != 0) { VSLb(hp->vsl, SLT_BogoHeader, "Illegal :path pseudo-header %.*s", (int)len, b); diff --git a/bin/varnishtest/tests/a02027.vtc b/bin/varnishtest/tests/a02027.vtc index ff34b0071..e9dcf6619 100644 --- a/bin/varnishtest/tests/a02027.vtc +++ b/bin/varnishtest/tests/a02027.vtc @@ -22,8 +22,8 @@ client c1 { client c1 { stream 1 { txreq -noadd -hdr ":authority" "foo.com" -hdr ":path" "//foo" -hdr ":scheme" "http" -hdr ":method" "GET" - rxrst - expect rst.err == PROTOCOL_ERROR + rxresp + expect resp.status == 200 } -run } -run From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:08 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:08 +0000 (UTC) Subject: [7.3] ab26b0b4f bereq: Also unset a cached req body Message-ID: <20231025143309.04E5E6E500@lists.varnish-cache.org> commit ab26b0b4fa4436d64ec901b320e7aa876f4d76af Author: Lachie Date: Wed Apr 5 12:10:29 2023 +1000 bereq: Also unset a cached req body diff --git a/bin/varnishd/cache/cache_vrt_var.c b/bin/varnishd/cache/cache_vrt_var.c index fe4f8a81e..5069cadd6 100644 --- a/bin/varnishd/cache/cache_vrt_var.c +++ b/bin/varnishd/cache/cache_vrt_var.c @@ -35,6 +35,7 @@ #include #include "cache_varnishd.h" +#include "cache_objhead.h" #include "cache_transport.h" #include "common/heritage.h" @@ -595,6 +596,11 @@ VRT_u_bereq_body(VRT_CTX) { CHECK_OBJ_NOTNULL(ctx, VRT_CTX_MAGIC); CHECK_OBJ_NOTNULL(ctx->bo, BUSYOBJ_MAGIC); + if (ctx->bo->bereq_body != NULL) { + HSH_DerefObjCore(ctx->bo->wrk, &ctx->bo->bereq_body, 0); + http_Unset(ctx->bo->bereq, H_Content_Length); + } + if (ctx->bo->req != NULL) { CHECK_OBJ(ctx->bo->req, REQ_MAGIC); ctx->bo->req = NULL; diff --git a/bin/varnishtest/tests/v00068.vtc b/bin/varnishtest/tests/v00068.vtc new file mode 100644 index 000000000..4b54a5ba0 --- /dev/null +++ b/bin/varnishtest/tests/v00068.vtc @@ -0,0 +1,33 @@ +varnishtest "unset bereq.body with cached req body" + +server s1 { + rxreq + expect req.method == "GET" + expect req.http.Content-Length == + txresp + + rxreq + expect req.method == "GET" + txresp +} -start + +varnish v1 -vcl+backend { + import std; + + sub vcl_recv { + std.cache_req_body(2KB); + } + sub vcl_backend_fetch { + unset bereq.body; + } +} -start + +client c1 { + txreq -body "fine" + rxresp + expect resp.status == 200 + + txreq + rxresp + expect resp.status == 200 +} -run From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:09 +0000 (UTC) Subject: [7.3] 38a3a10df Fix a bug in our vgz-extension which is only triggered by vtest and only after 7565cdba7d10 Message-ID: <20231025143309.1D0096E505@lists.varnish-cache.org> commit 38a3a10df518eb0f72c992d1286de4b46c686bba Author: Poul-Henning Kamp Date: Fri May 12 21:59:06 2023 +0000 Fix a bug in our vgz-extension which is only triggered by vtest and only after 7565cdba7d10 diff --git a/lib/libvgz/deflate.c b/lib/libvgz/deflate.c index ed9ac5190..75277afd4 100644 --- a/lib/libvgz/deflate.c +++ b/lib/libvgz/deflate.c @@ -1810,6 +1810,9 @@ local block_state deflate_stored(s, flush) s->strm->total_out += len; } } while (last == 0); + if (last) + s->strm->stop_bit = + (s->strm->total_out + s->pending) * 8 + s->bi_valid; /* Update the sliding window with the last s->w_size bytes of the copied * data, or append all of the copied data to the existing window if less From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:09 +0000 (UTC) Subject: [7.3] 3eb01c5ab vsl: Expose vsl_tag_is_masked Message-ID: <20231025143309.6B6386E525@lists.varnish-cache.org> commit 3eb01c5ab2a5ce152304e81d88ea538b502e99c1 Author: Dag Haavi Finstad Date: Wed May 10 16:58:19 2023 +0200 vsl: Expose vsl_tag_is_masked diff --git a/bin/varnishd/cache/cache.h b/bin/varnishd/cache/cache.h index 55a86960a..2416196b2 100644 --- a/bin/varnishd/cache/cache.h +++ b/bin/varnishd/cache/cache.h @@ -783,6 +783,7 @@ void VSLbs(struct vsl_log *, enum VSL_tag_e tag, const struct strands *s); void VSLb_ts(struct vsl_log *, const char *event, vtim_real first, vtim_real *pprev, vtim_real now); void VSLb_bin(struct vsl_log *, enum VSL_tag_e, ssize_t, const void*); +int VSL_tag_is_masked(enum VSL_tag_e tag); static inline void VSLb_ts_req(struct req *req, const char *event, vtim_real now) diff --git a/bin/varnishd/cache/cache_shmlog.c b/bin/varnishd/cache/cache_shmlog.c index b3b2e213d..67150f69a 100644 --- a/bin/varnishd/cache/cache_shmlog.c +++ b/bin/varnishd/cache/cache_shmlog.c @@ -130,6 +130,12 @@ vsl_tag_is_masked(enum VSL_tag_e tag) return (*bm & b); } +int +VSL_tag_is_masked(enum VSL_tag_e tag) +{ + return (vsl_tag_is_masked(tag)); +} + /*-------------------------------------------------------------------- * Lay down a header fields, and return pointer to the next record */ From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:09 +0000 (UTC) Subject: [7.3] 0b3e67476 h2_vsl_frame: Exit early if masked Message-ID: <20231025143309.88A4F6E545@lists.varnish-cache.org> commit 0b3e67476024d6ef98e65ce4389b21afa9791f2a Author: Dag Haavi Finstad Date: Mon May 22 10:57:09 2023 +0200 h2_vsl_frame: Exit early if masked The VSB bits in here come with a very significant performance penalty for H2 request body processing. diff --git a/bin/varnishd/http2/cache_http2_proto.c b/bin/varnishd/http2/cache_http2_proto.c index dc3d4a144..fddec7dbf 100644 --- a/bin/varnishd/http2/cache_http2_proto.c +++ b/bin/varnishd/http2/cache_http2_proto.c @@ -244,6 +244,10 @@ h2_vsl_frame(const struct h2_sess *h2, const void *ptr, size_t len) const char *p; unsigned u; + if (VSL_tag_is_masked(SLT_H2RxHdr) && + VSL_tag_is_masked(SLT_H2RxBody)) + return; + AN(ptr); assert(len >= 9); b = ptr; From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:09 +0000 (UTC) Subject: [7.3] aacf777d0 ESI: Use response status modulo 1000 Message-ID: <20231025143309.B40E86E55C@lists.varnish-cache.org> commit aacf777d0d9dea7aedb22eff145dd20bea573d11 Author: Nils Goroll Date: Wed Jul 12 15:36:51 2023 +0200 ESI: Use response status modulo 1000 Ref: 582ded6a2d6ae1a4467b1eb500f2725b42888016 Fixes #3958 diff --git a/bin/varnishd/cache/cache_esi_deliver.c b/bin/varnishd/cache/cache_esi_deliver.c index 56f4b82d2..100bbc317 100644 --- a/bin/varnishd/cache/cache_esi_deliver.c +++ b/bin/varnishd/cache/cache_esi_deliver.c @@ -856,6 +856,7 @@ ved_deliver(struct req *req, struct boc *boc, int wantbody) { int i = 0; const char *p; + uint16_t status; struct ecx *ecx; struct ved_foo foo[1]; struct vrt_ctx ctx[1]; @@ -869,9 +870,9 @@ ved_deliver(struct req *req, struct boc *boc, int wantbody) if (wantbody == 0) return; - if (!ecx->incl_cont && - req->resp->status != 200 && - req->resp->status != 204) { + status = req->resp->status % 1000; + + if (!ecx->incl_cont && status != 200 && status != 204) { req->top->topreq->vdc->retval = -1; req->top->topreq->doclose = req->doclose; return; diff --git a/bin/varnishtest/tests/e00003.vtc b/bin/varnishtest/tests/e00003.vtc index c03d9f487..dad0d40ab 100644 --- a/bin/varnishtest/tests/e00003.vtc +++ b/bin/varnishtest/tests/e00003.vtc @@ -8,8 +8,7 @@ server s1 { txresp -body { Before include - - After include + After include } rxreq @@ -21,9 +20,17 @@ server s1 { } -start varnish v1 -vcl+backend { + sub vcl_synth { + set resp.body = """ + """; + return (deliver); + } sub vcl_recv { if (req.esi_level > 0) { set req.url = req.url + req.esi_level; + if (req.url ~ "^/synth") { + return (synth(3200)); + } } else { set req.http.esi0 = "foo"; } @@ -64,7 +71,7 @@ logexpect l4 -v v1 -g request { } -start logexpect l5 -v v1 -g request { - expect * 1005 Begin "^req .* rxreq" + expect * 1006 Begin "^req .* rxreq" # Header bytes is 5 larger than in l1 due to two item X-Varnish hdr expect * = ReqAcct "^29 0 29 175 75 250$" expect 0 = End @@ -87,7 +94,7 @@ client c1 { } client c1 -run -varnish v1 -expect esi_req == 2 +varnish v1 -expect esi_req == 4 varnish v1 -expect esi_errors == 0 varnish v1 -expect MAIN.s_resp_bodybytes == 150 @@ -104,7 +111,7 @@ shell { cat >expected.txt <<-EOF 1001 c rxreq - 1005 c rxreq + 1006 c rxreq EOF diff -u expected.txt ncsa.txt } @@ -129,8 +136,10 @@ shell { cat >expected.txt <<-EOF 1001 c rxreq 1003 c esi - 1005 c rxreq - 1006 c esi + 1005 c esi + 1006 c rxreq + 1007 c esi + 1008 c esi EOF diff -u expected.txt ncsa.txt } @@ -145,8 +154,10 @@ shell { 1002 b fetch 1003 c esi 1004 b fetch - 1005 c rxreq - 1006 c esi + 1005 c esi + 1006 c rxreq + 1007 c esi + 1008 c esi EOF diff -u expected.txt ncsa.txt } From dridi.boukelmoune at gmail.com Wed Oct 25 14:33:09 2023 From: dridi.boukelmoune at gmail.com (Dridi Boukelmoune) Date: Wed, 25 Oct 2023 14:33:09 +0000 (UTC) Subject: [7.3] 1fb4303d4 Fix a race between VBP_Remove() and vbp_thread() Message-ID: <20231025143309.D39A86E564@lists.varnish-cache.org> commit 1fb4303d4feaaaccd05354f9c9b327de21b743b3 Author: Nils Goroll Date: Tue Jul 11 23:37:05 2023 +0200 Fix a race between VBP_Remove() and vbp_thread() Suppose the following happens: vbp_task() finishes with vt->running = 0 and a heap insert. The vbp_cond is signaled under the lock, but now instead of vbp_thread() waking up first, VBP_Remove() gets the lock and reaches assert(vt->heap_idx == VBH_NOIDX) before the racing vbp_thread() deleted the heap. This is unlikely to happen with static backends, because for those, the probe is stopped via the vcl temperature before they get removed. Fixes https://github.com/nigoroll/libvmod-dynamic/issues/100 diff --git a/bin/varnishd/cache/cache_backend_probe.c b/bin/varnishd/cache/cache_backend_probe.c index e4589dd37..800bb6b67 100644 --- a/bin/varnishd/cache/cache_backend_probe.c +++ b/bin/varnishd/cache/cache_backend_probe.c @@ -710,8 +710,12 @@ VBP_Remove(struct backend *be) be->probe = NULL; vt->backend = NULL; if (vt->running) { + // task scheduled, it calls vbp_delete() vt->running = -1; vt = NULL; + } else if (vt->heap_idx != VBH_NOIDX) { + // task done, not yet rescheduled + VBH_delete(vbp_heap, vt->heap_idx); } Lck_Unlock(&vbp_mtx); if (vt != NULL) {