Oleg Sharoyko wrote:
On Mon, 2009-07-27 at 16:24 -0700, Julian Elischer wrote:
in addition to the patches already sent you might like to add the
following line to netinet/tcp_input.c
}
inc.inc_fport = th->th_sport;
inc.inc_lport = th->th_dport;
inc.inc_fibnum = so->so_fibnum; <-------------
/*
* Check for an existing connection attempt in syncache if
* the flag is only ACK. A successful lookup creates a new
* socket appended to the listen queue in SYN_RECEIVED
state.
*/
in fact you might try just this on its own
With this patch alone all the packets but SYN+ACK are being sent out
correctly. SYN+ACK still uses wrong interface.
ip_output() uses struct inpcb *inp argument to set fib. But when
syncache_respond() sends SYN+ACK, ip_output() is being called without
inp (from netinet/tcp_syncache.c, syncache_respond()):
error = ip_output(m, sc->sc_ipopts, NULL, 0, NULL, NULL);
It I add
M_SETFIB(m, sc->sc_inc.inc_fibnum);
excellent!
I'll get that checked in!
before the call to ip_output(), then SYN+ACK goes the right way.
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