15a737eb5f
qc_prep_hdshk_fast_retrans() job is to pick some packets to be retransmitted
from Initial and Handshake packet number spaces. A packet may be coalesced to
a first one into the same datagram. When a coalesced packet is inspected for
retransmission, it is skipped if its length would make the total datagram length
it is attached to exceeding the anti-amplification limit. But in this case, the
first packet must be kept for the current retransmission. This is tracked by
this trace statemement:
TRACE_PROTO("will probe Initial packet number space", QUIC_EV_CONN_SPPKTS, qc);
This was not the case because of the wrong "goto end" statement. This latter
must be run only if the Initial packet number space must not be probe with
the first packet found as coalesced to another one which must be skipped.
This bug was revealed by AWS-LC interop runner with handshakeloss and
handshakecorruption which always fail because this stack leads the server
to send more Initial packets.
Thank you to Ilya (@chipitsine) for this issue report in GH #2663.
Must be backported as far as 2.6.
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.