ipip: Set inner IP protocol in ipip

Call skb_set_inner_ipproto to set inner IP protocol to IPPROTO_IPV4
before tunnel_xmit. This is needed if UDP encapsulation (fou) is
being done.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index bfec31d..ea88ab3 100644 (file)
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -224,6 +224,8 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
        if (IS_ERR(skb))
                goto out;
 
+       skb_set_inner_ipproto(skb, IPPROTO_IPIP);
+
        ip_tunnel_xmit(skb, dev, tiph, tiph->protocol);
        return NETDEV_TX_OK;