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It is possible that the handshake was not confirmed and there was no more
packet in flight to probe with. It this case the server must wait for
the client to be unblocked without probing any packet number space contrary
to what was revealed by interop tests as follows:
[01|quic|2|uic_loss.c:65] TX loss pktns : qc@0x7fac301cd390 pktns=I pp=0
[01|quic|2|uic_loss.c:67] TX loss pktns : qc@0x7fac301cd390 pktns=H pp=0 tole=-102ms
[01|quic|2|uic_loss.c:67] TX loss pktns : qc@0x7fac301cd390 pktns=01RTT pp=0 if=1054 tole=-1987ms
[01|quic|5|uic_loss.c:73] quic_loss_pktns(): leaving : qc@0x7fac301cd390
[01|quic|5|uic_loss.c:91] quic_pto_pktns(): entering : qc@0x7fac301cd390
[01|quic|3|ic_loss.c:121] TX PTO handshake not already completed : qc@0x7fac301cd390
[01|quic|2|ic_loss.c:141] TX PTO : qc@0x7fac301cd390 pktns=I pp=0 dur=83ms
[01|quic|5|ic_loss.c:142] quic_pto_pktns(): leaving : qc@0x7fac301cd390
[01|quic|3|c_conn.c:5179] needs to probe Initial packet number space : qc@0x7fac301cd390
This bug was not visible before this commit:
BUG/MINOR: quic: wake up MUX on probing only for 01RTT
This means that before it, one could do bad things (probing the 01RTT packet number
space before the handshake was confirmed).
Must be backported to 2.7 and 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)