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Message-ID: <4EB8EBF8.1080508@cn.fujitsu.com> Date: Tue, 08 Nov 2011 16:44:40 +0800 From: Li Wei <lw@...fujitsu.com> To: "David S. Miller" <davem@...emloft.net> CC: netdev <netdev@...r.kernel.org> Subject: [PATCH] ipv4: fix a bug in strict route gateway comparation. Since commit def57687 (ipv4: Elide use of rt->rt_dst in ip_forward()) we use iph->daddr for strict route gateway comparation, Unfortunately skb_rtable(skb) has been updated in ip_options_rcv_srr() for the nexthop in SRR option but iph->daddr *not* updated, So rt->rt_dst is not equals to iph->daddr, We should use the updated rt->rt_dst instead. Signed-off-by: Li Wei <lw@...fujitsu.com> --- net/ipv4/ip_forward.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c index 3b34d1c..99461f0 100644 --- a/net/ipv4/ip_forward.c +++ b/net/ipv4/ip_forward.c @@ -84,7 +84,7 @@ int ip_forward(struct sk_buff *skb) rt = skb_rtable(skb); - if (opt->is_strictroute && ip_hdr(skb)->daddr != rt->rt_gateway) + if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway) goto sr_failed; if (unlikely(skb->len > dst_mtu(&rt->dst) && !skb_is_gso(skb) && -- 1.7.3.2 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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