This patch increases the statistics of packets drop if the sequence
adjustment fails in ipv4_confirm().
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 4273aa7..e06fd8a 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -120,8 +120,10 @@ static unsigned int ipv4_confirm(unsigned int hooknum,
typeof(nf_nat_seq_adjust_hook) seq_adjust;
seq_adjust = rcu_dereference(nf_nat_seq_adjust_hook);
- if (!seq_adjust || !seq_adjust(skb, ct, ctinfo))
+ if (!seq_adjust || !seq_adjust(skb, ct, ctinfo)) {
+ NF_CT_STAT_INC_ATOMIC(nf_ct_net(ct), drop);
return NF_DROP;
+ }
}
out:
/* We've seen it coming out the other side: confirm it */
--
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