a6e67e7b41
QUIC MUX may be initialized prior to handshake completion, when 0-RTT is
used. In this case, connection is flagged with CO_FL_EARLY_SSL_HS, which
is notably used by wait-for-hs http rule.
Early data may be subject to replay attacks. For this reason, haproxy
adds the header 'Early-data: 1' to all requests handled as TLS early
data. Thus the server can reject it if it is deemed unsafe. This header
injection is implemented by http-ana. However, it was not functional
with QUIC due to missing CO_FL_EARLY_DATA connection flag.
Fix this by ensuring that QUIC MUX sets CO_FL_EARLY_DATA when needed.
This is performed during qcc_recv() for STREAM frame reception. It is
only set if QC_CF_WAIT_HS is set, meaning that the handshake is not yet
completed. After this, the request is considered safe and Early-data
header is not necessary anymore.
This should fix github issue #3054.
This must be backported up to 3.2 at least. If possible, it should be
backported to all stable releases as well. On these versions, the
current patch relies on the following refactoring commit :
commit
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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.