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If not correctly parsed, an ACK frame must be ignored without any more treatment. Before this patch an ACK frame could be partially correctly parsed, then some errors could be detected which leaded newly acknowledged packets to be released in a wrong way calling free_quic_tx_pkts() called by qc_parse_ack_frm(). But there is no reason to release such packets because of a malformed ACK frame. This patch modifies qc_parse_ack_frm(). The newly acknowledged TX packets is done in two steps. It first collects the newly acknowledged packet calling qc_newly_acked_pkts(). Then proceed the same way as before for the treatments of haproxy TX packets acknowledged by the peer. If the ACK frame could not be fully parsed, the newly ackowledged packets are replaced back from where they were detached: the tree of TX packets for their encryption level. Must be backported as far as 2.6.
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)