diff options
Diffstat (limited to 'datapath/linux/compat/vxlan.c')
| -rw-r--r-- | datapath/linux/compat/vxlan.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/datapath/linux/compat/vxlan.c b/datapath/linux/compat/vxlan.c index 4faa18f3e..b92a90259 100644 --- a/datapath/linux/compat/vxlan.c +++ b/datapath/linux/compat/vxlan.c @@ -1648,6 +1648,47 @@ static netdev_tx_t vxlan_dev_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } +static int egress_ipv4_tun_info(struct net_device *dev, struct sk_buff *skb, + struct ip_tunnel_info *info, + __be16 sport, __be16 dport) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + struct rtable *rt; + struct flowi4 fl4; + + memset(&fl4, 0, sizeof(fl4)); + fl4.flowi4_tos = RT_TOS(info->key.tos); + fl4.flowi4_mark = skb->mark; + fl4.flowi4_proto = IPPROTO_UDP; + fl4.daddr = info->key.u.ipv4.dst; + + rt = ip_route_output_key(vxlan->net, &fl4); + if (IS_ERR(rt)) + return PTR_ERR(rt); + ip_rt_put(rt); + + info->key.u.ipv4.src = fl4.saddr; + info->key.tp_src = sport; + info->key.tp_dst = dport; + return 0; +} + +int ovs_vxlan_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb) +{ + struct vxlan_dev *vxlan = netdev_priv(dev); + struct ip_tunnel_info *info = skb_tunnel_info(skb); + __be16 sport, dport; + + sport = udp_flow_src_port(dev_net(dev), skb, vxlan->cfg.port_min, + vxlan->cfg.port_max, true); + dport = info->key.tp_dst ? : vxlan->cfg.dst_port; + + if (ip_tunnel_info_af(info) == AF_INET) + return egress_ipv4_tun_info(dev, skb, info, sport, dport); + return -EINVAL; +} +EXPORT_SYMBOL_GPL(ovs_vxlan_fill_metadata_dst); + static const struct net_device_ops vxlan_netdev_ops = { .ndo_init = vxlan_init, .ndo_uninit = vxlan_uninit, @@ -1659,6 +1700,9 @@ static const struct net_device_ops vxlan_netdev_ops = { .ndo_change_mtu = vxlan_change_mtu, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, +#ifdef HAVE_NDO_FILL_METADATA_DST + .ndo_fill_metadata_dst = vxlan_fill_metadata_dst, +#endif }; /* Info for udev, that this is a virtual tunnel endpoint */ |