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ipv4: Fix wrong order of ip_rt_get_source() and update iph->daddr. 

This patch fix a bug which introduced by commit ac8a4810 (ipv4: Save
nexthop address of LSRR/SSRR option to IPCB.).In that patch, we saved
the nexthop of SRR in ip_option->nexthop and update iph->daddr until
we get to ip_forward_options(), but we need to update it before
ip_rt_get_source(), otherwise we may get a wrong src.

Signed-off-by: Li Wei <lw@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Li Wei 2012-02-09 21:15:25 +00:00 committed by David S. Miller
parent 2b73bc65e2
commit 5dc7883f2a
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/ip_options.c
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@ -573,8 +573,8 @@ void ip_forward_options(struct sk_buff *skb)
} }
if (srrptr + 3 <= srrspace) { if (srrptr + 3 <= srrspace) {
opt->is_changed = 1; opt->is_changed = 1;
ip_rt_get_source(&optptr[srrptr-1], skb, rt);
ip_hdr(skb)->daddr = opt->nexthop; ip_hdr(skb)->daddr = opt->nexthop;
ip_rt_get_source(&optptr[srrptr-1], skb, rt);
optptr[2] = srrptr+4; optptr[2] = srrptr+4;
} else if (net_ratelimit()) } else if (net_ratelimit())
printk(KERN_CRIT "ip_forward(): Argh! Destination lost!\n"); printk(KERN_CRIT "ip_forward(): Argh! Destination lost!\n");