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vxlan: support ndo_fill_metadata_dst also for IPv6

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Fill the metadata correctly even when tunneling over IPv6. Also, check that
the provided metadata is of an address family that is supported by the
tunnel.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2015-12-07 13:04:31 +01:00 committed by David S. Miller
parent e5d4b29fe8
commit 239e944ff5
1 changed files with 23 additions and 2 deletions
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25
drivers/net/vxlan.c
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@ -2419,9 +2419,30 @@ static int vxlan_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
vxlan->cfg.port_max, true);
dport = info->key.tp_dst ? : vxlan->cfg.dst_port;
if (ip_tunnel_info_af(info) == AF_INET)
if (ip_tunnel_info_af(info) == AF_INET) {
if (!vxlan->vn4_sock)
return -EINVAL;
return egress_ipv4_tun_info(dev, skb, info, sport, dport);
return -EINVAL;
} else {
#if IS_ENABLED(CONFIG_IPV6)
struct dst_entry *ndst;
if (!vxlan->vn6_sock)
return -EINVAL;
ndst = vxlan6_get_route(vxlan, skb, 0,
&info->key.u.ipv6.dst,
&info->key.u.ipv6.src);
if (IS_ERR(ndst))
return PTR_ERR(ndst);
dst_release(ndst);
info->key.tp_src = sport;
info->key.tp_dst = dport;
#else /* !CONFIG_IPV6 */
return -EPFNOSUPPORT;
#endif
}
return 0;
}
static const struct net_device_ops vxlan_netdev_ops = {