When encoding HTX to HTTP/3 headers on the response path, a bunch of ABORT_NOW() where used when buffer room was not enough. In most cases this is safe as output buffer has just been allocated and so is empty at the start of the function. However, with a header list longer than a whole buffer, this would cause an unexpected crash. Fix this by removing ABORT_NOW() statement with proper error return path. For the moment, this would cause the whole connection to be close rather than the stream only. This may be further improved in the future. Also remove ABORT_NOW() when encoding frame length at the end of headers or trailers encoding. Buffer room is sufficient as it was already checked prior in the same function. This should be backported up to 2.6. Special care should be handled however as this code path has changed frequently : * for 2.9 and older, the extra following statement must be inserted prior each newly added goto statement : h3c->err = H3_INTERNAL_ERROR; * for 2.6, trailers support is not implemented. As such, related chunks should just be ignored when backporting. |
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HAProxy
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:
- doc/intro.txt for a quick introduction on HAProxy
- doc/configuration.txt for the configuration's reference manual
- doc/lua.txt for the Lua's reference manual
- doc/SPOE.txt for how to use the SPOE engine
- doc/network-namespaces.txt for how to use network namespaces under Linux
- doc/management.txt for the management guide
- doc/regression-testing.txt for how to use the regression testing suite
- doc/peers.txt for the peers protocol reference
- doc/coding-style.txt for how to adopt HAProxy's coding style
- doc/internals for developer-specific documentation (not all up to date)
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.
