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Amaury Denoyelle c714b6bb55 BUG/MAJOR: quic: fix padding with short packets 
QUIC sending functions were extended to be more flexible. Of all the
changes, they support now iterating over a variable instance of QEL
instance of only 2 previously. This change has rendered PADDING emission
less previsible, which was adjusted via the following patch :

  a60609f1aa
  BUG/MINOR: quic: fix padding of INITIAL packets

Its main purpose was to ensure PADDING would only be generated for the
last iterated QEL instance, to avoid unnecessary padding. In parallel, a
BUG_ON() statement ensure that built INITIAL packets are always padded
to 1.200 bytes as necessary before emitted them.

This BUG_ON() statement caused crash in one particular occurence : when
building datagrams that mixed Initial long packets and 1-RTT short
packets. This last occurence type does not have a length field in its
header, contrary to Long packets. This caused a miscalculation for the
necessary padding size, with INITIAL packets not padded enough to reach
the necessary 1.200 bytes size.

This issue was detected on 3.0.2. It can be reproduced by using 0-RTT
combined with latency. Here are the used commands :

  $ ngtcp2-client --tp-file=/tmp/ngtcp2-tp.txt \
    --session-file=/tmp/ngtcp2-session.txt --exit-on-all-streams-close \
    127.0.0.1 20443 "https://[::]/?s=32o"
  $ sudo tc qdisc add dev lo root netem latency 500ms

Note that this issue cannot be reproduced on current dev version.
Indeed, it seems that the following patch introduce a slight change in
packet building ordering :

  cdfceb10ae
  MINOR: quic: refactor qc_prep_pkts() loop

This must be backported to 3.0.

This should fix github issue #2609.
2024-06-19 11:11:57 +02:00
.github CI: github: do the AWS-LC weekly build with ERR=1 2024-06-14 12:18:32 +02:00
addons MINOR: stats: define stats-file output format support 2024-04-26 10:20:57 +02:00
admin ADMIN: acme.sh: remove the old acme.sh code 2024-05-31 13:37:47 +02:00
dev DEV: patchbot: prepare for new version 3.1-dev 2024-05-29 14:38:21 +02:00
doc DOC: management: document ptr lookup for table commands 2024-06-19 10:28:10 +02:00
examples CLEANUP: assorted typo fixes in the code and comments 2023-11-23 16:23:14 +01:00
include BUG/MINOR: proxy: fix email-alert leak on deinit() (2nd try) 2024-06-17 19:37:29 +02:00
reg-tests REGTESTS: ssl: activate new SSL reg-tests with AWS-LC 2024-06-17 17:43:22 +02:00
scripts CI: scripts: build vtest using multiple CPUs 2024-05-27 12:15:50 +02:00
src BUG/MAJOR: quic: fix padding with short packets 2024-06-19 11:11:57 +02:00
tests MINOR: ist: define iststrip() new function 2024-04-26 11:29:25 +02:00
.cirrus.yml CI: FreeBSD: upgrade image, packages 2024-06-04 11:19:00 +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 3.1-dev1 2024-06-14 16:04:18 +02:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2021-08-16 12:37:59 +02:00
INSTALL DOC: INSTALL: minimum AWS-LC version is v1.22.0 2024-06-14 12:06:03 +02:00
LICENSE LICENSE: add licence exception for OpenSSL 2012-09-07 13:52:26 +02:00
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile REORG: ssl: move the SNI selection code in ssl_clienthello.c 2024-06-13 16:48:17 +02:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS BUILD: use format tags in VERDATE and SUBVERS files 2013-12-10 11:22:49 +01:00
VERDATE [RELEASE] Released version 3.1-dev1 2024-06-14 16:04:18 +02:00
VERSION [RELEASE] Released version 3.1-dev1 2024-06-14 16:04:18 +02:00

README.md

HAProxy

alpine/musl AWS-LC openssl no-deprecated Illumos NetBSD FreeBSD VTest

HAProxy logo

HAProxy is a free, very fast and reliable reverse-proxy offering high availability, load balancing, and proxying for TCP and HTTP-based applications.

Installation

The INSTALL file describes how to build HAProxy. A list of packages is also available on the wiki.

Getting help

The discourse and the mailing-list are available for questions or configuration assistance. You can also use the slack or IRC channel. Please don't use the issue tracker for these.

The issue tracker is only for bug reports or feature requests.

Documentation

The HAProxy documentation has been split into a number of different files for ease of use. It is available in text format as well as HTML. The wiki is also meant to replace the old architecture guide.

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:

License

HAProxy is licensed under GPL 2 or any later version, the headers under LGPL 2.1. See the LICENSE file for a more detailed explanation.