[ovs-dev] [PATCH v2 06/16] datapath: Update the CT state key only after nf_conntrack_in().
Jarno Rajahalme
jarno at ovn.org
Tue Jun 14 22:25:27 UTC 2016
Upstream commit:
commit 394e910e909b174270b8231fd51942eb2f541fb9
Author: Jarno Rajahalme <jarno at ovn.org>
Date: Thu Mar 10 10:54:19 2016 -0800
openvswitch: Update the CT state key only after nf_conntrack_in().
Only a successful nf_conntrack_in() call can effect a connection state
change, so it suffices to update the key only after the
nf_conntrack_in() returns.
This change is needed for the later NAT patches.
Signed-off-by: Jarno Rajahalme <jarno at ovn.org>
Acked-by: Joe Stringer <joe at ovn.org>
Signed-off-by: Pablo Neira Ayuso <pablo at netfilter.org>
Signed-off-by: Jarno Rajahalme <jarno at ovn.org>
---
datapath/conntrack.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/datapath/conntrack.c b/datapath/conntrack.c
index 63611ef..0d4f39c 100644
--- a/datapath/conntrack.c
+++ b/datapath/conntrack.c
@@ -394,7 +394,8 @@ static bool skb_nfct_cached(const struct net *net, const struct sk_buff *skb,
}
/* Pass 'skb' through conntrack in 'net', using zone configured in 'info', if
- * not done already. Update key with new CT state.
+ * not done already. Update key with new CT state after passing the packet
+ * through conntrack.
* Note that if the packet is deemed invalid by conntrack, skb->nfct will be
* set to NULL and 0 will be returned.
*/
@@ -423,14 +424,14 @@ static int __ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
skb) != NF_ACCEPT)
return -ENOENT;
+ ovs_ct_update_key(skb, info, key, true);
+
if (ovs_ct_helper(skb, info->family) != NF_ACCEPT) {
WARN_ONCE(1, "helper rejected packet");
return -EINVAL;
}
}
- ovs_ct_update_key(skb, info, key, true);
-
return 0;
}
--
2.1.4
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