act_nat: the checksum of ICMP doesn't have pseudo header

after updating the value of the ICMP payload, inet_proto_csum_replace4() should
be called with zero pseudohdr.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index ea008f57fc830d4d667753267f02487d3943354b..abbf4fa66a0b93a23a830ecdb7535ae8ee0d3e38 100644 (file)
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -247,7 +247,7 @@ static int tcf_nat(struct sk_buff *skb, struct tc_action *a,
                        iph->saddr = new_addr;
 
                inet_proto_csum_replace4(&icmph->checksum, skb, addr, new_addr,
-                                        1);
+                                        0);
                break;
        }
        default: