This is a note to let you know that I've just added the patch titled
ipv6: Add GSO support on forwarding path
to the 2.6.33-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.33.git;a=summary
The filename of the patch is:
ipv6-add-gso-support-on-forwarding-path.patch
and it can be found in the queue-2.6.33 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.33 longterm
tree,
please let <sta...@kernel.org> know about it.
>From 0aa68271510ae2b221d4b60892103837be63afe4 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herb...@gondor.apana.org.au>
Date: Thu, 27 May 2010 16:14:30 -0700
Subject: ipv6: Add GSO support on forwarding path
From: Herbert Xu <herb...@gondor.apana.org.au>
commit 0aa68271510ae2b221d4b60892103837be63afe4 upstream.
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 <r...@linux-mips.org>
Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Apollon Oikonomopoulos <apoi...@gmail.com>
Signed-off-by: Faidon Liambotis <parav...@debian.org>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
net/ipv6/ip6_output.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -509,7 +509,7 @@ int ip6_forward(struct sk_buff *skb)
}
}
- if (skb->len > dst_mtu(dst)) {
+ if (skb->len > dst_mtu(dst) && !skb_is_gso(skb)) {
/* Again, force OUTPUT device used as source address */
skb->dev = dst->dev;
icmpv6_send(skb, ICMPV6_PKT_TOOBIG, 0, dst_mtu(dst), skb->dev);
Patches currently in longterm-queue-2.6.33 which might be from
herb...@gondor.apana.org.au are
/home/gregkh/linux/longterm/longterm-queue-2.6.33/queue-2.6.33/ipv6-add-gso-support-on-forwarding-path.patch
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