netdev - [PATCH 1/2] netfilter: nf_tables: use skb->protocol instead of assuming ethernet header

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Date:	Tue, 22 Dec 2015 18:53:16 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	netfilter-devel@...r.kernel.org
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 1/2] netfilter: nf_tables: use skb->protocol instead of assuming ethernet header

Otherwise we may end up with incorrect network and transport header for
other protocols.

Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nf_tables_netdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/nf_tables_netdev.c b/net/netfilter/nf_tables_netdev.c
index 7b9c053..edb3502f 100644
--- a/net/netfilter/nf_tables_netdev.c
+++ b/net/netfilter/nf_tables_netdev.c
@@ -94,7 +94,7 @@ nft_do_chain_netdev(void *priv, struct sk_buff *skb,
 {
 	struct nft_pktinfo pkt;
 
-	switch (eth_hdr(skb)->h_proto) {
+	switch (skb->protocol) {
 	case htons(ETH_P_IP):
 		nft_netdev_set_pktinfo_ipv4(&pkt, skb, state);
 		break;
-- 
2.1.4

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