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authorJesse Gross <jesse@nicira.com>2014-11-10 22:45:13 +0300
committerDavid S. Miller <davem@davemloft.net>2014-11-10 23:09:45 +0300
commitcfdf1e1ba5bf55e095cf4bcaa9585c4759f239e8 (patch)
tree6844467a4be67dcc20519696ec9cee87556d779a /include/net/udp_tunnel.h
parent10b450cbbcb385d297a3c759b2e10da0c850011a (diff)
downloadlinux-cfdf1e1ba5bf55e095cf4bcaa9585c4759f239e8.tar.xz
udptunnel: Add SKB_GSO_UDP_TUNNEL during gro_complete.
When doing GRO processing for UDP tunnels, we never add SKB_GSO_UDP_TUNNEL to gso_type - only the type of the inner protocol is added (such as SKB_GSO_TCPV4). The result is that if the packet is later resegmented we will do GSO but not treat it as a tunnel. This results in UDP fragmentation of the outer header instead of (i.e.) TCP segmentation of the inner header as was originally on the wire. Signed-off-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/udp_tunnel.h')
-rw-r--r--include/net/udp_tunnel.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index a47790bcaa38..2a50a70ef587 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -100,6 +100,15 @@ static inline struct sk_buff *udp_tunnel_handle_offloads(struct sk_buff *skb,
return iptunnel_handle_offloads(skb, udp_csum, type);
}
+static inline void udp_tunnel_gro_complete(struct sk_buff *skb, int nhoff)
+{
+ struct udphdr *uh;
+
+ uh = (struct udphdr *)(skb->data + nhoff - sizeof(struct udphdr));
+ skb_shinfo(skb)->gso_type |= uh->check ?
+ SKB_GSO_UDP_TUNNEL_CSUM : SKB_GSO_UDP_TUNNEL;
+}
+
static inline void udp_tunnel_encap_enable(struct socket *sock)
{
#if IS_ENABLED(CONFIG_IPV6)