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Date:	Fri, 16 Mar 2012 16:57:15 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	davem@...emloft.net
Cc:	steffen.klassert@...unet.com, eric.dumazet@...il.com,
	netdev@...r.kernel.org, Gao feng <gaofeng@...fujitsu.com>
Subject: [PATCH] ipv6: fix incorrent ipv6 ipsec packet fragment

Since commit 299b0767(ipv6: Fix IPsec slowpath fragmentation problem)
In func ip6_append_data,after call skb_put(skb, fraglen + dst_exthdrlen)
the skb->len contains dst_exthdrlen,and we don't reduce dst_exthdrlen at last
This will make fraggap>0 in next "while cycle",and cause the size of skb incorrent

Call skb_pull reduce skb->len before next "while cycle"

Signed-off-by: Gao feng <gaofeng@...fujitsu.com>
---
 net/ipv6/ip6_output.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index d97e071..f67f840 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1450,7 +1450,8 @@ alloc_new_skb:
 				kfree_skb(skb);
 				goto error;
 			}
-
+
+			skb_pull(skb, dst_exthdrlen);
 			offset += copy;
 			length -= datalen - fraggap;
 			transhdrlen = 0;
-- 
1.7.5.4

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