From: Changli Gao <xiaosuo@gmail.com>
Date: Thu, 29 Jul 2010 14:04:18 +0000 (+0000)
Subject: act_nat: the checksum of ICMP doesn't have pseudo header
X-Git-Tag: firefly_0821_release~10186^2~1077
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=65412a7bcdc5b0ff3b5a9ced6747e834276d0605;p=firefly-linux-kernel-4.4.55.git

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

[ Upstream commit 3a3dfb062c2e086c202d34f09ce29634515ad256 ]

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index d885ba311564..37e198cda945 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -240,7 +240,7 @@ 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: