On Thu, Mar 17, 2016 at 11:24:59AM +0100, Steffen Klassert wrote:
> In IPv6 this check is missing, so this could be the
> problem if this is IPv6.
indeed, this patch also fixes my problem:
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1353,6 +1353,7 @@ emsgsize:
(skb && skb_is_gso(skb))) &&
(sk->sk_protocol == IPPROTO_UDP) &&
(rt->dst.dev->features & NETIF_F_UFO) &&
+ !rt->dst.header_len &&
(sk->sk_type == SOCK_DGRAM)) {
err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
hh_len, fragheaderlen,
I can't say which is better. Herbert originally seemed to like
the fix inside xfrm_output().
The IPv4 part is fixed by commit
c146066ab80267c3305de5dda6a4083f06df9265 (ipv4: Don't use ufo
handling on later transformed packets)
Thanks,
--
Jiri Bohac <[email protected]>
SUSE Labs, SUSE CZ
