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authorDavid S. Miller <davem@davemloft.net>2012-07-11 20:38:08 -0700
committerDavid S. Miller <davem@davemloft.net>2012-07-11 20:38:08 -0700
commit94206125c4aac32e43c25bfe1b827e7ab993b7dc (patch)
tree6cfbc21c6b69efd90ccec6575a3a3c91e0bd8cad /net/ipv4/icmp.c
parentd0da720f9f16a5023cc084bed8968702400f6e0f (diff)
downloadop-kernel-dev-94206125c4aac32e43c25bfe1b827e7ab993b7dc.zip
op-kernel-dev-94206125c4aac32e43c25bfe1b827e7ab993b7dc.tar.gz
ipv4: Rearrange arguments to ip_rt_redirect()
Pass in the SKB rather than just the IP addresses, so that policy and other aspects can reside in ip_rt_redirect() rather then icmp_redirect(). Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/icmp.c')
-rw-r--r--net/ipv4/icmp.c36
1 files changed, 6 insertions, 30 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 5885146..70a7935 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -755,40 +755,16 @@ out_err:
static void icmp_redirect(struct sk_buff *skb)
{
- const struct iphdr *iph;
-
- if (skb->len < sizeof(struct iphdr))
- goto out_err;
+ if (skb->len < sizeof(struct iphdr)) {
+ ICMP_INC_STATS_BH(dev_net(skb->dev), ICMP_MIB_INERRORS);
+ return;
+ }
- /*
- * Get the copied header of the packet that caused the redirect
- */
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
- goto out;
-
- iph = (const struct iphdr *)skb->data;
-
- switch (icmp_hdr(skb)->code & 7) {
- case ICMP_REDIR_NET:
- case ICMP_REDIR_NETTOS:
- /*
- * As per RFC recommendations now handle it as a host redirect.
- */
- case ICMP_REDIR_HOST:
- case ICMP_REDIR_HOSTTOS:
- ip_rt_redirect(ip_hdr(skb)->saddr, iph->daddr,
- icmp_hdr(skb)->un.gateway,
- iph->saddr, skb->dev);
- break;
- }
+ return;
+ ip_rt_redirect(skb, icmp_hdr(skb)->un.gateway);
icmp_socket_deliver(skb, icmp_hdr(skb)->un.gateway);
-
-out:
- return;
-out_err:
- ICMP_INC_STATS_BH(dev_net(skb->dev), ICMP_MIB_INERRORS);
- goto out;
}
/*
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