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Christopher Faulet efc46de294 BUG/MEDIUM: applet: Don't handle EOI/EOS/ERROR is applet is waiting for room 
The commit 7214dcd52 ("BUG/MEDIUM: applet: Don't pretend to have more data
to handle EOI/EOS/ERROR") introduced a regression. Because of this patch, it
was possible to handle EOI/EOS/ERROR applet flags too early while the applet
was waiting for more room to transfer the last output data.

This bug can be encountered with any applet using its own buffers (cache and
stats for instance). And depending on the configuration and the timing, the
data may be truncated or the stream may be blocked, infinitely or not.
Streams blocked infinitely were observed with the cache applet and the HTTP
compression enabled.

For the record, it is important to detect EOI/EOS/ERROR applet flags to be
able to report the corresponding event on the SE and by transitivity on the
SC. Most of time, this happens when some data should be transferred to the
stream. The .rcv_buf callback function is called and these flags are
properly handled. However, some applets may also report them spontaneously,
outside of any data transfer. In that case, the .rcv_buf callback is not
called.

It is the purpose of this patch (and the one above). Being able to detect
pending EOI/EOS/ERROR applet flags. However, we must be sure to not handle
them too early at this place. When these flags are set, it means no more
data will be produced by the applet. So we must only wait to have
transferred everything to the stream. And this happens when the applet is no
longer waiting for more room.

This patch must be backported to 3.1 with the one above.
2025-02-20 10:00:32 +01:00
.github CI: github: activate debug in wolfssl weekly build 2024-12-23 18:00:34 +01:00
addons MEDIUM: stream: Map task wake up reasons to dedicated stream events 2025-01-28 14:53:37 +01:00
admin CLEANUP: assorted typo fixes in the code and comments 2024-09-03 17:49:21 +02:00
dev DEV: h2: fix flags for the continuation frame 2025-02-18 14:17:17 +01:00
doc [RELEASE] Released version 3.2-dev6 2025-02-19 18:39:51 +01:00
examples EXAMPLES: add "traces.cfg" with traces examples 2024-11-06 17:32:32 +01:00
include MINOR: mux-quic/h3: emit SETTINGS via MUX tasklet handler 2025-02-19 11:03:40 +01:00
reg-tests Revert "REGTESTS: stop using truncated.vtc on freebsd" 2025-02-18 17:35:00 +01:00
scripts CI: scripts: allow to build wolfssl with --enable-debug 2024-12-23 18:00:25 +01:00
src BUG/MEDIUM: applet: Don't handle EOI/EOS/ERROR is applet is waiting for room 2025-02-20 10:00:32 +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 14-2 2025-02-12 13:18:55 +01:00
.gitattributes MINOR: Configure the cpp userdiff driver for *.[ch] in .gitattributes 2021-02-22 18:17:57 +01:00
.gitignore MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
.mailmap DOC: update Tim's address in .mailmap 2021-09-16 09:14:14 +02:00
.travis.yml MEDIUM: mworker: remove USE_SYSTEMD requirement for -Ws 2024-11-20 12:07:38 +01:00
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 3.2-dev6 2025-02-19 18:39:51 +01:00
CONTRIBUTING CLEANUP: assorted typo fixes in the code and comments 2021-08-16 12:37:59 +02:00
INSTALL MINOR: version: this is development again (3.2) 2024-11-26 17:21:16 +01:00
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 MINOR: tevt/dev: Add term_events tool 2025-01-31 10:41:50 +01:00
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 3.2-dev6 2025-02-19 18:39:51 +01:00
VERSION [RELEASE] Released version 3.2-dev6 2025-02-19 18:39:51 +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.