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f37b140b06
Patrick Hemmer reported that a simple tcp rule involving a variable like
this is enough to crash haproxy :
frontend foo
bind :8001
tcp-request session set-var(txn.foo) src
The tests on the variables scopes is not strict enough, it needs to always
verify if the stream is valid when accessing a req/res/txn variable. This
patch does this by adding a new get_vars() function which does the job
instead of open-coding all the lookups everywhere.
It must be backported to all versions supporting set-var and
"tcp-request session" so at least 1.9 and 1.8.
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 - 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)