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authorJason A. Donenfeld <Jason@zx2c4.com>2020-06-29 19:06:19 -0600
committerDavid S. Miller <davem@davemloft.net>2020-06-30 12:29:39 -0700
commite53ac93220e002fdf26b2874af6a74f393cd3872 (patch)
treecd00f1c6ddd2762b4234d9e2c2dbdde72ba1db96 /net/ipv4
parent2606aff916854b61234bf85001be9777bab2d5f8 (diff)
net: ipip: implement header_ops->parse_protocol for AF_PACKET
Ipip uses skb->protocol to determine packet type, and bails out if it's not set. For AF_PACKET injection, we need to support its call chain of: packet_sendmsg -> packet_snd -> packet_parse_headers -> dev_parse_header_protocol -> parse_protocol Without a valid parse_protocol, this returns zero, and ipip rejects the skb. So, this wires up the ip_tunnel handler for layer 3 packets for that case. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/ipip.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 40fea52c8277..75d35e76bec2 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -361,6 +361,7 @@ static const struct net_device_ops ipip_netdev_ops = {
static void ipip_tunnel_setup(struct net_device *dev)
{
dev->netdev_ops = &ipip_netdev_ops;
+ dev->header_ops = &ip_tunnel_header_ops;
dev->type = ARPHRD_TUNNEL;
dev->flags = IFF_NOARP;