tree 5946bf2297afcd2239a16a07be4190eabf5bdf4d
parent 422a0a51611f0892507ddfa1d826394a5d04561d
author Willy Tarreau <w@1wt.eu> 1351274278 +0200
committer Willy Tarreau <w@1wt.eu> 1351274667 +0200

BUG/MEDIUM: tcp: transparent bind to the source only when address is set

Thomas Heil reported that health checks did not work anymore when a backend
or server has "usesrc clientip". This is because the source address is not
set and tcp_bind_socket() tries to bind to that address anyway.

The solution consists in explicitly clearing the source address in the checks
and to make tcp_bind_socket() avoid binding when the address is not set. This
also has an indirect benefit that a useless bind() syscall will be avoided
when using "source 0.0.0.0 usesrc clientip" in health checks.