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Bugzilla: 1015905
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Upstream-status: 3.13 (should hit stable)
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From 90e4e23d52fd04f228eed2c3d341136c50058b37 Mon Sep 17 00:00:00 2001
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From: Jiri Pirko <jiri@resnulli.us>
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Date: Wed, 6 Nov 2013 17:52:19 +0100
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Subject: [PATCH 1/2] ip6_output: fragment outgoing reassembled skb properly
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If reassembled packet would fit into outdev MTU, it is not fragmented
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according the original frag size and it is send as single big packet.
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The second case is if skb is gso. In that case fragmentation does not happen
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according to the original frag size.
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This patch fixes these.
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Signed-off-by: Jiri Pirko <jiri@resnulli.us>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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net/ipv6/ip6_output.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
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index 5b25f85..f80f2fa 100644
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--- a/net/ipv6/ip6_output.c
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+++ b/net/ipv6/ip6_output.c
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@@ -150,7 +150,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
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static int ip6_finish_output(struct sk_buff *skb)
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{
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if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
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- dst_allfrag(skb_dst(skb)))
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+ dst_allfrag(skb_dst(skb)) ||
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+ (IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
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return ip6_fragment(skb, ip6_finish_output2);
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else
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return ip6_finish_output2(skb);
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--
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1.8.3.1
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