Amaury Denoyelle e7b3a69c59 BUG/MEDIUM: h3: handle interim response properly on FE side
On frontend side, HTTP/3 layer is responsible to transcode an HTX
response message into HTTP/3 HEADERS frame. This operations is handled
via h3_resp_headers_send().

Prior to this patch, if HTX EOM was encountered in the HTX message after
response transcoding, <fin> was reported to the QMUX layer. This will in
turn cause FIN stream bit to be set when the response is emitted.
However, this is not correct as a single HTX response can be constitued
of several interim message, each delimited by EOM block.

Most of the time, this bug will cause the client to close the connection
as it is invalid to receive an interim response with FIN bit set.

Fixes this by now properly differentiate interim and final response.
During interim response transcoding, the new flag H3_SF_SENT_INTERIM
will be set, which will prevent <fin> to be reported. Thus, <fin> will
only be notified for the final response.

This must be backported up to 2.6. Note that it relies on the previous
patch which also must be taken.
2025-07-15 18:39:23 +02:00
2025-07-11 16:45:50 +02:00
2025-04-03 15:59:41 +02:00
2021-09-16 09:14:14 +02:00
2025-07-11 16:45:50 +02:00
2025-07-11 16:45:50 +02:00
2025-07-11 16:45:50 +02:00

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.

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