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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-27 16:14:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-28 01:57:17 -0700 |
| commit | 0aa68271510ae2b221d4b60892103837be63afe4 (patch) | |
| tree | f6d6a624a13ced851ea3036995813b1612200e01 /net | |
| parent | a47311380e094bb201be8a818370c73c3f52122c (diff) | |
| download | blackbird-op-linux-0aa68271510ae2b221d4b60892103837be63afe4.tar.gz blackbird-op-linux-0aa68271510ae2b221d4b60892103837be63afe4.zip | |
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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index cd963f64e27c..89425af0684c 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); |
