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| author |   David S. Miller <davem@davemloft.net> | 2011-05-09 13:28:22 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-10 13:32:46 -0700 |
| commit | 9f6abb5f175bdb9ecfd390000a631bf0abf2fedb (patch) | |
| tree | 696cd97e0cdc67c9a0dcbf0ad1e2fd0626e221ee /net/ipv4/icmp.c | |
| parent | ipv4: Pass explicit daddr arg to ip_send_reply(). (diff) | |
| download | linux-dev-9f6abb5f175bdb9ecfd390000a631bf0abf2fedb.tar.xz linux-dev-9f6abb5f175bdb9ecfd390000a631bf0abf2fedb.zip | |
ipv4: icmp: Eliminate remaining uses of rt->rt_src
On input packets, rt->rt_src always equals ip_hdr(skb)->saddr
Anything that mangles or otherwise changes the IP header must
relookup the route found at skb_rtable(). Therefore this
invariant must always hold true.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/icmp.c')
| -rw-r--r-- | net/ipv4/icmp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index 853a670f6df6..3314394f0aab 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -345,7 +345,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) icmp_param->data.icmph.checksum = 0; inet->tos = ip_hdr(skb)->tos; - daddr = ipc.addr = rt->rt_src; + daddr = ipc.addr = ip_hdr(skb)->saddr; ipc.opt = NULL; ipc.tx_flags = 0; if (icmp_param->replyopts.opt.opt.optlen) { @@ -930,12 +930,12 @@ static void icmp_address_reply(struct sk_buff *skb) BUG_ON(mp == NULL); for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) { if (*mp == ifa->ifa_mask && - inet_ifa_match(rt->rt_src, ifa)) + inet_ifa_match(ip_hdr(skb)->saddr, ifa)) break; } if (!ifa && net_ratelimit()) { printk(KERN_INFO "Wrong address mask %pI4 from %s/%pI4\n", - mp, dev->name, &rt->rt_src); + mp, dev->name, &ip_hdr(skb)->saddr); } } } |