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[ovs-dev,PATCHv4,net-next,3/5] openvswitch: return NF_DROP when fails to add nat ext in ovs_ct_nat

Message ID 41f1f2b95985ef29f5440d717dc9007b71495d42.1670518439.git.lucien.xin@gmail.com
State Handled Elsewhere
Headers show
Series net: eliminate the duplicate code in the ct nat functions of ovs and tc | expand

Commit Message

Xin Long Dec. 8, 2022, 4:56 p.m. UTC
When it fails to allocate nat ext, the packet should be dropped, like
the memory allocation failures in other places in ovs_ct_nat().

This patch changes to return NF_DROP when fails to add nat ext before
doing NAT in ovs_ct_nat(), also it would keep consistent with tc
action ct' processing in tcf_ct_act_nat().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
---
 net/openvswitch/conntrack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Aaron Conole Dec. 9, 2022, 1:33 p.m. UTC | #1
Xin Long <lucien.xin@gmail.com> writes:

> When it fails to allocate nat ext, the packet should be dropped, like
> the memory allocation failures in other places in ovs_ct_nat().
>
> This patch changes to return NF_DROP when fails to add nat ext before
> doing NAT in ovs_ct_nat(), also it would keep consistent with tc
> action ct' processing in tcf_ct_act_nat().
>
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
> ---

LGTM.

Acked-by: Aaron Conole <aconole@redhat.com>
diff mbox series

Patch

diff --git a/net/openvswitch/conntrack.c b/net/openvswitch/conntrack.c
index 5ea74270da46..58c9f0edc3c4 100644
--- a/net/openvswitch/conntrack.c
+++ b/net/openvswitch/conntrack.c
@@ -821,7 +821,7 @@  static int ovs_ct_nat(struct net *net, struct sw_flow_key *key,
 
 	/* Add NAT extension if not confirmed yet. */
 	if (!nf_ct_is_confirmed(ct) && !nf_ct_nat_ext_add(ct))
-		return NF_ACCEPT;   /* Can't NAT. */
+		return NF_DROP;   /* Can't NAT. */
 
 	/* Determine NAT type.
 	 * Check if the NAT type can be deduced from the tracked connection.