tree 8922a2a87408ed185f3998011eab4c6a3e9f0c2b
parent f5b321bd37fbec9188feb1f721ab46a5ac0b35da
author Patrick McHardy <kaber@trash.net> 1265887629 +0100
committer Patrick McHardy <kaber@trash.net> 1265887629 +0100

netfilter: nf_nat: support mangling a single TCP packet multiple times

nf_nat_mangle_tcp_packet() can currently only handle a single mangling
per window because it only maintains two sequence adjustment positions:
the one before the last adjustment and the one after.

This patch makes sequence number adjustment tracking in
nf_nat_mangle_tcp_packet() optional and allows a helper to manually
update the offsets after the packet has been fully handled.

Signed-off-by: Patrick McHardy <kaber@trash.net>