805a070ab9
Previously, no check on peer flow-control was implemented prior to open a local QUIC stream. This was a small problem for frontend implementation, as in this case haproxy as a server never opens bidirectional streams. On frontend, the only stream opened by haproxy in this case is for HTTP/3 control unidirectional data. If the peer uses an initial value for max uni streams set to 0, it would violate its flow control, and the peer will probably close the connection. Note however that RFC 9114 mandates that each peer defines minimal initial value so that at least the control stream can be created. This commit improves the situation of too low initial max uni streams value. Now, on HTTP/3 layer initialization, haproxy preemptively checks flow control limit on streams via a new function qcc_fctl_avail_streams(). If credit is already expired due to a too small initial value, haproxy preemptively closes the connection using H3_ERR_GENERAL_PROTOCOL_ERROR. This behavior is better as haproxy is now the initiator of the connection closure. This should be backported up to 2.8. |
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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.