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HAProxy - Load balancer
e18d4e8286
When establishing an outboud connection, haproxy checks if the cached TLS session has the same SNI as the connection we are trying to resume. This test was done by calling SSL_get_servername() which in TLSv1.2 returned the SNI. With TLSv1.3 this is not the case anymore and this function returns NULL, which invalidates any outboud connection we are trying to resume if it uses the sni keyword on its server line. This patch fixes the problem by storing the SNI in the "reused_sess" structure beside the session itself. The ssl_sock_set_servername() now has a RWLOCK because this session cache entry could be accessed by the CLI when trying to update a certificate on the backend. This fix must be backported in every maintained version, however the RWLOCK only exists since version 2.4. |
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The HAProxy documentation has been split into a number of different files for ease of use. 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)