93cc23a355
The ClientHello Callback which is used for certificate selection uses both the signature algorithms and the ciphers sent by the client. However, when a client is announcing both ECDSA and RSA capabilities with ECSDA ciphers that are not available on haproxy side and RSA ciphers that are compatibles, the ECDSA certificate will still be used but this will result in a "no shared cipher" error, instead of a fallback on the RSA certificate. For example, a client could send 'ECDHE-ECDSA-AES128-CCM:ECDHE-RSA-AES256-SHA and HAProxy could be configured with only 'ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA'. This patch fixes the issue by validating that at least one ECDSA cipher is available on both side before chosing the ECDSA certificate. This must be backported on all stable versions. |
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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.