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net: sched: act_tunnel_key: request UDP checksum by default 

There's currently no way to request (outer) UDP checksum with
act_tunnel_key. This is problem especially for IPv6. Right now, tunnel_key
action with IPv6 does not work without going through hassles: both sides
have to have udp6zerocsumrx configured on the tunnel interface. This is
obviously not a good solution universally.

It makes more sense to compute the UDP checksum by default even for IPv4.
Just set the default to request the checksum when using act_tunnel_key.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2017-06-14 21:19:30 +02:00 committed by David S. Miller
parent 9d7cdedd0f
commit 63fe4c39d2
1 changed files with 2 additions and 2 deletions
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4
net/sched/act_tunnel_key.c
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@ -125,7 +125,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
daddr = nla_get_in_addr(tb[TCA_TUNNEL_KEY_ENC_IPV4_DST]);
metadata = __ip_tun_set_dst(saddr, daddr, 0, 0,
dst_port, TUNNEL_KEY,
dst_port, TUNNEL_KEY | TUNNEL_CSUM,
key_id, 0);
} else if (tb[TCA_TUNNEL_KEY_ENC_IPV6_SRC] &&
tb[TCA_TUNNEL_KEY_ENC_IPV6_DST]) {
@ -136,7 +136,7 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
daddr = nla_get_in6_addr(tb[TCA_TUNNEL_KEY_ENC_IPV6_DST]);
metadata = __ipv6_tun_set_dst(&saddr, &daddr, 0, 0, dst_port,
0, TUNNEL_KEY,
0, TUNNEL_KEY | TUNNEL_CSUM,
key_id, 0);
}