aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJesse Gross <jesse@kernel.org>2016-03-19 09:32:00 -0700
committerSasha Levin <alexander.levin@verizon.com>2017-01-15 09:49:53 -0500
commitbd73bf40df53c9dc493a889c3fed89924da071ac (patch)
treeed6c5c0ccef7ff6f0dd6e7b677a3ca7a14214e11
parenta861b9212ab44dc9483259b1f9376e74bae2ad37 (diff)
ipip: Properly mark ipip GRO packets as encapsulated.
[ Upstream commit b8cba75bdf6a48ea4811bbefb11a94a5c7281b68 ] ipip encapsulated packets can be merged together by GRO but the result does not have the proper GSO type set or even marked as being encapsulated at all. Later retransmission of these packets will likely fail if the device does not support ipip offloads. This is similar to the issue resolved in IPv6 sit in feec0cb3 ("ipv6: gro: support sit protocol"). Reported-by: Patrick Boutilier <boutilpj@ednet.ns.ca> Fixes: 9667e9bb ("ipip: Add gro callbacks to ipip offload") Tested-by: Patrick Boutilier <boutilpj@ednet.ns.ca> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jesse Gross <jesse@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
-rw-r--r--net/ipv4/af_inet.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 6cf020ea4f46..76f1022b350f 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1433,6 +1433,13 @@ out_unlock:
return err;
}
+static int ipip_gro_complete(struct sk_buff *skb, int nhoff)
+{
+ skb->encapsulation = 1;
+ skb_shinfo(skb)->gso_type |= SKB_GSO_IPIP;
+ return inet_gro_complete(skb, nhoff);
+}
+
int inet_ctl_sock_create(struct sock **sk, unsigned short family,
unsigned short type, unsigned char protocol,
struct net *net)
@@ -1650,7 +1657,7 @@ static const struct net_offload ipip_offload = {
.callbacks = {
.gso_segment = inet_gso_segment,
.gro_receive = inet_gro_receive,
- .gro_complete = inet_gro_complete,
+ .gro_complete = ipip_gro_complete,
},
};