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Willy Tarreau b9bf16b382 BUG/MINOR: h1: fix detection of upper bytes in the URI 
In 1.7 with commit 5f10ea30f4 ("OPTIM: http: improve parsing performance
of long URIs") we improved the URI parser's performance on platforms
supporting unaligned accesses by reading 4 chars at a time in a 32-bit
word. However, as reported in GH issue #2545, there's a bug in the way
the top bytes are checked, as the parser will stop when all 4 of them
are above 7e instead of when one of them is, so certain patterns can be
accepted through if the last ones are all valid. The fix requires to
negate the value but on the other hand it allows to parallelize some of
the tests and fuse the masks, which could even end up slightly faster.

This needs to be backported to all stable versions, but be careful, this
code moved a lot over time, from proto_http.c to h1.c, to http_msg.c, to
h1.c again. Better just grep for "24242424" or "21212121" in each version
to find it.

Big kudos to Martijn van Oosterhout (@kleptog) for spotting this problem
while analyzing that piece of code, and reporting it.
2024-04-24 11:50:36 +02:00
.github REGTESTS: use -dI for insecure fork by default in the regtest scripts 2024-04-22 16:15:57 +02:00
addons MINOR: tools: Rename ha_generate_uuid to ha_generate_uuid_v4 2024-04-24 08:23:56 +02:00
admin BUILD: address a few remaining calloc(size, n) cases 2024-02-10 11:37:27 +01:00
dev MEDIUM: ring: use the topmost bit of the tail as a lock 2024-03-25 17:34:19 +00:00
doc MINOR: Add support for UUIDv7 to the uuid sample fetch 2024-04-24 08:23:56 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2023-11-23 16:23:14 +01:00
include MEDIUM: shctx: Naming shared memory context 2024-04-24 10:25:38 +02:00
reg-tests MINOR: stats: rename proxy stats 2024-04-22 16:25:18 +02:00
scripts REGTESTS: use -dI for insecure fork by default in the regtest scripts 2024-04-22 16:15:57 +02:00
src BUG/MINOR: h1: fix detection of upper bytes in the URI 2024-04-24 11:50:36 +02:00
tests Revert "MAJOR: import: update mt_list to support exponential back-off" 2023-09-15 17:13:43 +02:00
.cirrus.yml CI: cirrus-ci: display gdb bt if any 2023-09-22 08:28:30 +02:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore CONTRIB: Add vi file extensions to .gitignore 2023-06-02 18:14:34 +02:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml CI: travis-ci: temporarily disable arm64 builds 2021-08-07 07:28:15 +02:00
BRANCHES DOC: fix some spelling issues over multiple files 2021-01-08 14:53:47 +01:00
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.0-dev8 2024-04-19 18:02:28 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2021-08-16 12:37:59 +02:00
INSTALL DOC: install: clarify the build process by splitting it into subsections 2024-04-11 18:02:26 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Deprecate the SPOE filter 2024-03-15 11:29:39 +01:00
Makefile REORG: stats: extract JSON related functions 2024-04-18 17:04:08 +02:00
README DOC: create a BRANCHES file to explain the life cycle 2019-06-15 22:00:14 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.0-dev8 2024-04-19 18:02:28 +02:00
VERSION [RELEASE] Released version 3.0-dev8 2024-04-19 18:02:28 +02:00

README 

The HAProxy documentation has been split into a number of different files for
ease of use.

Please refer to the following files depending on what you're looking for :

  - INSTALL for instructions on how to build and install HAProxy
  - BRANCHES to understand the project's life cycle and what version to use
  - LICENSE for the project's license
  - CONTRIBUTING for the process to follow to submit contributions

The more detailed documentation is located into the doc/ directory :

  - doc/intro.txt for a quick introduction on HAProxy
  - doc/configuration.txt for the configuration's reference manual
  - doc/lua.txt for the Lua's reference manual
  - doc/SPOE.txt for how to use the SPOE engine
  - doc/network-namespaces.txt for how to use network namespaces under Linux
  - doc/management.txt for the management guide
  - doc/regression-testing.txt for how to use the regression testing suite
  - doc/peers.txt for the peers protocol reference
  - doc/coding-style.txt for how to adopt HAProxy's coding style
  - doc/internals for developer-specific documentation (not all up to date)