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Commit 090f1166 authored by Li RongQing's avatar Li RongQing Committed by David S. Miller
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ipv6: ip6_forward: perform skb->pkt_type check at the beginning 



Packets which have L2 address different from ours should be
already filtered before entering into ip6_forward().

Perform that check at the beginning to avoid processing such packets.

Signed-off-by: default avatarLi RongQing <roy.qing.li@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fcb308d5

net/ipv6/ip6_output.c

+3 −3
Original line number Original line Diff line number Diff line
@@ -367,6 +367,9 @@ int ip6_forward(struct sk_buff *skb) 
	if (net->ipv6.devconf_all->forwarding == 0)

	if (net->ipv6.devconf_all->forwarding == 0)

		goto error;

		goto error;





	if (skb->pkt_type != PACKET_HOST)

		goto drop;



	if (skb_warn_if_lro(skb))

	if (skb_warn_if_lro(skb))

		goto drop;

		goto drop;
@@ -376,9 +379,6 @@ int ip6_forward(struct sk_buff *skb) 
		goto drop;

		goto drop;

	}

	}





	if (skb->pkt_type != PACKET_HOST)

		goto drop;



	skb_forward_csum(skb);

	skb_forward_csum(skb);





	/*

	/*