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| author | Gary S. Robertson <gary.robertson@linaro.org> | 2014-03-12 16:35:51 -0500 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2014-03-12 16:35:51 -0500 |
| commit | 9ce234e1ee801968b204c3b9caa75ce0a76ed1c2 (patch) | |
| tree | 850b06a09068c82c95dcb8419f344749392fe527 /net/ipv6/ip6_output.c | |
| parent | de4c0af15b38d383e79555be2d72e7958f1c0756 (diff) | |
| parent | 6969595f011b46b49c3f1b9e0bd7da27768c1fd9 (diff) | |
Merge tag 'v3.10.33' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-lnglinux-lng-v3.10.33-finallinux-lng-3.10.33-2014.03
This is the 3.10.33 stable release
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index b98b8e06739e..98a262b759ae 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -345,6 +345,20 @@ static inline int ip6_forward_finish(struct sk_buff *skb) return dst_output(skb); } +static bool ip6_pkt_too_big(const struct sk_buff *skb, unsigned int mtu) +{ + if (skb->len <= mtu || skb->local_df) + return false; + + if (IP6CB(skb)->frag_max_size && IP6CB(skb)->frag_max_size > mtu) + return true; + + if (skb_is_gso(skb) && skb_gso_network_seglen(skb) <= mtu) + return false; + + return true; +} + int ip6_forward(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); @@ -467,8 +481,7 @@ int ip6_forward(struct sk_buff *skb) if (mtu < IPV6_MIN_MTU) mtu = IPV6_MIN_MTU; - if ((!skb->local_df && skb->len > mtu && !skb_is_gso(skb)) || - (IP6CB(skb)->frag_max_size && IP6CB(skb)->frag_max_size > mtu)) { + if (ip6_pkt_too_big(skb, mtu)) { /* Again, force OUTPUT device used as source address */ skb->dev = dst->dev; icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu); |