37d01eea37
The QUIC backend crashes when its peer does not support 0-RTT. In this case,
when the sessions are reused, no early-data level secrets are derived by
the TLS stack. This leads to crashes from qc_send_mux() which does not suppose
that both early-data level (qc->eel) and application level (qc->ael) cipher levels
could be non initialized.
To fix this:
- prevent qc_send_mux() to send data if these two encryption level are not
intialized. In this case it returns QUIC_TX_ERR_NONE;
- avoid waking up the MUX from XPRT ->start() callback if the MUX is ready
but without early-data level secrets to send them;
- ensure the MUX is woken up by qc_ssl_do_handshake() after handshake completion
if it is ready calling qc_notify_send()
Thank you to @InputOutputZ for having reported this issue in GH #3188.
No need to backport because QUIC backends is a current 3.3 development feature.
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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.