Commit 05aa69e5 authored May 30, 2020 by wenxu Committed by David S. Miller May 30, 2020

net/sched: act_ct: add nat mangle action only for NAT-conntrack



Currently add nat mangle action with comparing invert and orig tuple.
It is better to check IPS_NAT_MASK flags first to avoid non necessary
memcmp for non-NAT conntrack.

Signed-off-by: wenxu <wenxu@ucloud.cn>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 1b49cd71

net/sched/act_ct.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -199,6 +199,9 @@ static int tcf_ct_flow_table_add_action_nat(struct net *net,
		const struct nf_conntrack_tuple *tuple = &ct->tuplehash[dir].tuple;
		struct nf_conntrack_tuple target;

		if (!(ct->status & IPS_NAT_MASK))
		return 0;

		nf_ct_invert_tuple(&target, &ct->tuplehash[!dir].tuple);

		switch (tuple->src.l3num) {

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