[PATCH] netfilter: conntrack: account packets drop by tcp_packet()

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Since tcp_packet() may return -NF_DROP in two situations, the
packet-drop stats must be increased.

Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---

 net/netfilter/nf_conntrack_core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 8b9dbb7..4503727 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -733,6 +733,8 @@ nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
 		nf_conntrack_put(skb->nfct);
 		skb->nfct = NULL;
 		NF_CT_STAT_INC_ATOMIC(net, invalid);
+		if (-ret == NF_DROP)
+			NF_CT_STAT_INC_ATOMIC(net, drop);
 		return -ret;
 	}
 

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