# \[PATCH 18/25\] netns nat: MASQUERADE in netns

- From: Alexey Dobriyan \<hidden\>
- Date: 2008-06-22 01:16:03 
- List: netdev
- Page: https://ratatoskr.run/netdev/2008/06/10801996
- Thread: https://ratatoskr.run/netdev/2008/06/10801996/t.md

```text
Do conntrack cleanup in netns which messenger netdevice came from.

Signed-off-by: Alexey Dobriyan <redacted>
---

 net/ipv4/netfilter/ipt_MASQUERADE.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
@@ -120,16 +120,13 @@ static int masq_device_event(struct notifier_block *this,
 {
 	const struct net_device *dev = ptr;
 
-	if (dev_net(dev) != &init_net)
-		return NOTIFY_DONE;
-
 	if (event == NETDEV_DOWN) {
 		/* Device was downed.  Search entire table for
 		   conntracks which were associated with that device,
 		   and forget them. */
 		NF_CT_ASSERT(dev->ifindex != 0);
 
-		nf_ct_iterate_cleanup(&init_net, device_cmp, (void *)(long)dev->ifindex);
+		nf_ct_iterate_cleanup(dev_net(dev), device_cmp, (void *)(long)dev->ifindex);
 	}
 
 	return NOTIFY_DONE;
-- 
1.5.4.5


```