[PATCH net-next-2.6 3/5] udpv6: Fix gso_size setting in ip6_ufo_append_data
From: Sridhar Samudrala <hidden>
Date: 2009-07-09 18:10:00
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
[PATCH net-next-2.6 3/5] udpv6: Fix gso_size setting in ip6_ufo_append_data - fix gso_size setting for ipv6 fragment to be a multiple of 8 bytes. Signed-off-by: Sridhar Samudrala <redacted> --- net/ipv6/ip6_output.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 7c76e3d..1c6f0fc 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c@@ -1087,9 +1087,11 @@ static inline int ip6_ufo_append_data(struct sock *sk, if (!err) { struct frag_hdr fhdr; - /* specify the length of each IP datagram fragment*/ - skb_shinfo(skb)->gso_size = mtu - fragheaderlen - - sizeof(struct frag_hdr); + /* Specify the length of each IPv6 datagram fragment. + * It has to be a multiple of 8. + */ + skb_shinfo(skb)->gso_size = (mtu - fragheaderlen - + sizeof(struct frag_hdr)) & ~7; skb_shinfo(skb)->gso_type = SKB_GSO_UDP; ipv6_select_ident(skb, &fhdr); skb_shinfo(skb)->ip6_frag_id = fhdr.identification;