209a54d539
Currently, when connection is closing, only CONNECTION_CLOSE frame is emitted via qc_prep_pkts()/qc_do_build_pkt(). Also, only the first registered encryption level is considered while the others are dismissed. This results in a single packet datagram. This can cause issues for QUIC client support, as padding is required for every Initial packet, contrary to server side where only ack-eliciting packets are eligible. Thus a client must add padding to a CONNECTION_CLOSE frame on Initial level. This patch adjusts qc_prep_pkts() to ensure such packet will be correctly padded on client side. It sets <final_packet> variable which instructs that if padding is necessary it must be apply immediately on the current encryption level instead of the last one. It could appear as unnecessary to pad a CONNECTION_CLOSE packet, as the peer will enter in draining state when processing it. However, RFC mandates that a client Initial packet too small must be dropped by the server, so there is a risk that the CONNECTION_CLOSE is simply discarded prior to its processing if stored in a too small datagram. No need to backport as this is a QUIC backend issue only.
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.