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HTTP/3 implementation must ignore unknown frame type to support protocol evolution. Clients can deliberately use unknown type to test that the server is conformant : this principle is called greasing. Quiche client uses greasing on H3 frame type with a zero length frame. This reveals a bug in H3 parsing code which causes the transfer to be interrupted. Fix this by removing the break statement on ret variable. Now the parsing loop is only interrupted if input buffer is empty or the demux is blocked. This should fix http/3 freeze transfers with the quiche client. Thanks to Lucas Pardue from Cloudflare for his report on the bug. Frédéric Lecaille quickly found the source of the problem which helps me to write this patch.
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)