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ip6_output: fragment outgoing reassembled skb properly

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If reassembled packet would fit into outdev MTU, it is not fragmented
according the original frag size and it is send as single big packet.

The second case is if skb is gso. In that case fragmentation does not happen
according to the original frag size.

This patch fixes these.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2013-11-06 17:52:19 +01:00 committed by David S. Miller
parent 4e3faf8863
commit 9037c3579a
1 changed files with 2 additions and 1 deletions
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3
net/ipv6/ip6_output.c
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@ -125,7 +125,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
static int ip6_finish_output(struct sk_buff *skb)
{
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)))
dst_allfrag(skb_dst(skb)) ||
(IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
return ip6_fragment(skb, ip6_finish_output2);
else
return ip6_finish_output2(skb);