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quic_tls_compat_keylog_callback() is the callback used by the QUIC OpenSSL compatibility module to derive the TLS secrets from other secrets provided by keylog. The <write> local variable to this function is initialized to denote the direction (write to send, read to receive) the secret is supposed to be used for. That said, as the QUIC cryptographic algorithms are symmetrical, the direction is inversed between the peer: a secret which is used to write/send/cipher data from a peer point of view is also the secret which is used to read/receive/decipher data. This was confirmed by the fact that without this patch, the TLS stack first provides the peer with Handshake to send/cipher data. The client could not use such secret to decipher the Handshake packets received from the server. This patch simply reverse the direction stored by <write> variable to make the secrets derivation works for the QUIC client.
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.