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authorHerbert Xu <herbert@gondor.apana.org.au>2010-05-27 16:14:30 -0700
committerDavid S. Miller <davem@davemloft.net>2010-05-28 01:57:17 -0700
commit0aa68271510ae2b221d4b60892103837be63afe4 (patch)
treef6d6a624a13ced851ea3036995813b1612200e01 /net
parenta47311380e094bb201be8a818370c73c3f52122c (diff)
downloadlinux-2.6.34-ux500-0aa68271510ae2b221d4b60892103837be63afe4.tar.gz
ipv6: Add GSO support on forwarding path
Currently we disallow GSO packets on the IPv6 forward path. This patch fixes this. Note that I discovered that our existing GSO MTU checks (e.g., IPv4 forwarding) are buggy in that they skip the check altogether, when they really should be checking gso_size + header instead. I have also been lazy here in that I haven't bothered to segment the GSO packet by hand before generating an ICMP message. Someone should add that to be 100% correct. Reported-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_output.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index cd963f64e27..89425af0684 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -507,7 +507,7 @@ int ip6_forward(struct sk_buff *skb)
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
- if (skb->len > mtu) {
+ if (skb->len > mtu && !skb_is_gso(skb)) {
/* Again, force OUTPUT device used as source address */
skb->dev = dst->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);