From 05aa69e5cba61d8900970a364825f854401694ec Mon Sep 17 00:00:00 2001 From: wenxu Date: Sat, 30 May 2020 13:54:51 +0800 Subject: 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 Acked-by: Marcelo Ricardo Leitner Signed-off-by: David S. Miller --- net/sched/act_ct.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c index 1a766393be62..20577355235a 100644 --- a/net/sched/act_ct.c +++ b/net/sched/act_ct.c @@ -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) { -- cgit v1.2.3