diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2020-06-29 19:06:19 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-30 12:29:39 -0700 |
| commit | e53ac93220e002fdf26b2874af6a74f393cd3872 (patch) | |
| tree | cd00f1c6ddd2762b4234d9e2c2dbdde72ba1db96 /net | |
| parent | 2606aff916854b61234bf85001be9777bab2d5f8 (diff) | |
| download | linux-e53ac93220e002fdf26b2874af6a74f393cd3872.tar.bz2 | |
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')
| -rw-r--r-- | net/ipv4/ipip.c | 1 | ||||
| -rw-r--r-- | net/ipv6/ip6_tunnel.c | 1 |
2 files changed, 2 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; diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 821d96c720b9..a18c378ca5f4 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -1846,6 +1846,7 @@ static const struct net_device_ops ip6_tnl_netdev_ops = { static void ip6_tnl_dev_setup(struct net_device *dev) { dev->netdev_ops = &ip6_tnl_netdev_ops; + dev->header_ops = &ip_tunnel_header_ops; dev->needs_free_netdev = true; dev->priv_destructor = ip6_dev_free; |