From a2bd40ad3151d4d346fd167e01fb84b06f7247fc Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 12 Jan 2009 00:06:02 +0000 Subject: [PATCH] netfilter 02/09: bridge: Fix handling of non-IP packets in FORWARD/POST_ROUTING Currently the bridge FORWARD/POST_ROUTING chains treats all non-IPv4 packets as IPv6. This packet fixes that by returning NF_ACCEPT on non-IP packets instead, just as is done in PRE_ROUTING. Signed-off-by: Herbert Xu Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/bridge/br_netfilter.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index a65e43a17fbb..9a1cd757ec4e 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -686,8 +686,11 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) pf = PF_INET; - else + else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) || + IS_PPPOE_IPV6(skb)) pf = PF_INET6; + else + return NF_ACCEPT; nf_bridge_pull_encap_header(skb); @@ -828,8 +831,11 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb, if (skb->protocol == htons(ETH_P_IP) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) pf = PF_INET; - else + else if (skb->protocol == htons(ETH_P_IPV6) || IS_VLAN_IPV6(skb) || + IS_PPPOE_IPV6(skb)) pf = PF_INET6; + else + return NF_ACCEPT; #ifdef CONFIG_NETFILTER_DEBUG if (skb->dst == NULL) { -- 2.20.1