Christopher Faulet 7c4eda5b57 BUG/MEDIUM: mux-h1: Force close mode for bodyless message announcing a C-L
When dealing with EOH block, we must be sure to force the close mode for
message with no payload but annoncing a non-null content-length.

It is mainly an issue on the server side but it could be encountered on
client side too. Without this fix, a request can be switched to the DONE
state while the server is still expecting the payload. In an ideal world,
this case should not happen. But in conjunction with other bugs, it may lead
to a desynchro between haproxy and the server.

Now, when a non-null content-length is announced but we know we reached the
end of the message, we force the close mode. The only exception is for
bodyless responses (204s, 304s and responses to head requests).

Thanks to Martino Spagnuolo (r3verii) for his detailed report on this issue.

This patch must be backported to all stable version.
2026-04-23 17:06:11 +02:00
2021-09-16 09:14:14 +02:00
2026-04-15 17:59:00 +02:00
2026-04-15 17:59:00 +02:00
2026-04-15 17:59:00 +02:00

HAProxy

AWS-LC Illumos NetBSD CrossCompile 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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