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Frederic Lecaille 217e467e89 BUG/MINOR: quic: fix malformed probing packet building 
This bug arrived with this commit:

   cdfceb10a MINOR: quic: refactor qc_prep_pkts() loop

which prevents haproxy from sending PING only packets/datagrams (some
packets/datagrams with only PING frame as ack-eliciting frames inside).
Such packets/datagrams are useful in rare cases during retransmissions
when one wants to probe the peer without exceeding the anti-amplification
limit.

Modify the condition passed to qc_build_pkt() to add padding to the current
datagram. One does not want to do that when probing the peer without ack-eliciting
frames passed as <frms> parameter. Indeed qc_build_pkt() calls qc_do_build_pkt()
which supports this case: if <probe> is true (probing required), qc_do_build_pkt()
handles the case where some padding must be added to a PING only packet/datagram.
This is the case when probing with an empty <frms> frame list of ack-eliciting
frames without exceeding the anti-amplification limit from qc_dgrams_retransmit().

Add some comments to qc_build_pkt() and qc_do_build_pkt() to clarify this
as this code is easy to break!

Thank you for @Tristan971 for having reported this issue in GH #2709.

Must be backported to 3.0.
 		2024-11-05 20:17:35 +01:00
.github CI: LibreSSL QUIC Interop: fix docker context 2024-10-30 19:42:31 +01:00
addons BUG/MEDIUM: promex: Fix dump of extra counters 2024-11-05 15:36:41 +01:00
admin CLEANUP: assorted typo fixes in the code and comments 2024-09-03 17:49:21 +02:00
dev DEV: gdb: add a number of gdb scripts to navigate in core dumps 2024-10-28 17:55:08 +01:00
doc MINOR: connection: add new sample fetch functions fc_err_name and bc_err_name 2024-11-05 18:57:43 +01:00
examples MEDIUM: protocol: add MPTCP per address support 2024-08-30 18:53:49 +02:00
include MINOR: connection: add new sample fetch functions fc_err_name and bc_err_name 2024-11-05 18:57:43 +01:00
reg-tests MEDIUM: socket: add zero-terminated ABNS alternative 2024-10-29 12:15:24 +01:00
scripts SCRIPTS: create-release: no more need to skip architecture.txt 2024-07-10 15:38:45 +02:00
src BUG/MINOR: quic: fix malformed probing packet building 2024-11-05 20:17:35 +01:00
tests MAJOR: import: update mt_list to support exponential back-off (try #2) 2024-07-09 16:46:38 +02:00
.cirrus.yml CI: cirrus-ci: bump FreeBSD image to 14-1 2024-10-14 14:28:26 +02:00
.gitattributes
…
.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
…
BSDmakefile BUILD: makefile: commit the tiny FreeBSD makefile stub 2023-05-24 17:17:36 +02:00
CHANGELOG [RELEASE] Released version 3.1-dev11 2024-11-01 10:17:02 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2021-08-16 12:37:59 +02:00
INSTALL DOC: install: don't reference removed CPU arg 2024-07-16 20:06:06 +02:00
LICENSE
…
MAINTAINERS MAJOR: spoe: Let the SPOE back into the game 2024-05-22 09:04:38 +02:00
Makefile REORG: buffers: move some of the heavy functions from buf.h to buf.c 2024-10-12 16:29:15 +02:00
README.md DOC: change the link to the FreeBSD CI in README.md 2024-06-03 15:21:29 +02:00
SUBVERS
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VERDATE [RELEASE] Released version 3.1-dev11 2024-11-01 10:17:02 +01:00
VERSION [RELEASE] Released version 3.1-dev11 2024-11-01 10:17:02 +01:00

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.