summary refs log tree commit diff
path: root/net/sched
diff options
context:
space:
mode:
authorPaul Blakey <paulb@nvidia.com>2021-05-26 14:44:09 +0300
committerJakub Kicinski <kuba@kernel.org>2021-05-27 14:54:14 -0700
commit0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33 (patch)
treed83551b6230c4f7e92276c09ff1533c43903eb01 /net/sched
parentb28d8f0c25a9b0355116cace5f53ea52bd4020c8 (diff)
downloadlinux-0cc254e5aa37cf05f65bcdcdc0ac5c58010feb33.tar.gz
net/sched: act_ct: Offload connections with commit action
Currently established connections are not offloaded if the filter has a
"ct commit" action. This behavior will not offload connections of the
following scenario:

$ tc_filter add dev $DEV ingress protocol ip prio 1 flower \
  ct_state -trk \
  action ct commit action goto chain 1

$ tc_filter add dev $DEV ingress protocol ip chain 1 prio 1 flower \
  action mirred egress redirect dev $DEV2

$ tc_filter add dev $DEV2 ingress protocol ip prio 1 flower \
  action ct commit action goto chain 1

$ tc_filter add dev $DEV2 ingress protocol ip prio 1 chain 1 flower \
  ct_state +trk+est \
  action mirred egress redirect dev $DEV

Offload established connections, regardless of the commit flag.

Fixes: 46475bb20f4b ("net/sched: act_ct: Software offload of established flows")
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Paul Blakey <paulb@nvidia.com>
Link: https://lore.kernel.org/r/1622029449-27060-1-git-send-email-paulb@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/act_ct.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index ec7a1c438df9..b1473a1aecdd 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -984,7 +984,7 @@ static int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a,
 	 */
 	cached = tcf_ct_skb_nfct_cached(net, skb, p->zone, force);
 	if (!cached) {
-		if (!commit && tcf_ct_flow_table_lookup(p, skb, family)) {
+		if (tcf_ct_flow_table_lookup(p, skb, family)) {
 			skip_add = true;
 			goto do_nat;
 		}
@@ -1022,10 +1022,11 @@ do_nat:
 		 * even if the connection is already confirmed.
 		 */
 		nf_conntrack_confirm(skb);
-	} else if (!skip_add) {
-		tcf_ct_flow_table_process_conn(p->ct_ft, ct, ctinfo);
 	}
 
+	if (!skip_add)
+		tcf_ct_flow_table_process_conn(p->ct_ft, ct, ctinfo);
+
 out_push:
 	skb_push_rcsum(skb, nh_ofs);