diff options
Diffstat (limited to 'net/ipv4/udp_tunnel.c')
-rw-r--r-- | net/ipv4/udp_tunnel.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c index 47f12c73d959..8174753e6494 100644 --- a/net/ipv4/udp_tunnel.c +++ b/net/ipv4/udp_tunnel.c @@ -76,6 +76,108 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock, } EXPORT_SYMBOL_GPL(setup_udp_tunnel_sock); +static void __udp_tunnel_push_rx_port(struct net_device *dev, + struct udp_tunnel_info *ti) +{ + switch (ti->type) { + case UDP_TUNNEL_TYPE_VXLAN: + if (!dev->netdev_ops->ndo_add_vxlan_port) + break; + + dev->netdev_ops->ndo_add_vxlan_port(dev, + ti->sa_family, + ti->port); + break; + case UDP_TUNNEL_TYPE_GENEVE: + if (!dev->netdev_ops->ndo_add_geneve_port) + break; + + dev->netdev_ops->ndo_add_geneve_port(dev, + ti->sa_family, + ti->port); + break; + default: + break; + } +} + +void udp_tunnel_push_rx_port(struct net_device *dev, struct socket *sock, + unsigned short type) +{ + struct sock *sk = sock->sk; + struct udp_tunnel_info ti; + + ti.type = type; + ti.sa_family = sk->sk_family; + ti.port = inet_sk(sk)->inet_sport; + + __udp_tunnel_push_rx_port(dev, &ti); +} +EXPORT_SYMBOL_GPL(udp_tunnel_push_rx_port); + +/* Notify netdevs that UDP port started listening */ +void udp_tunnel_notify_add_rx_port(struct socket *sock, unsigned short type) +{ + struct sock *sk = sock->sk; + struct net *net = sock_net(sk); + struct udp_tunnel_info ti; + struct net_device *dev; + + ti.type = type; + ti.sa_family = sk->sk_family; + ti.port = inet_sk(sk)->inet_sport; + + rcu_read_lock(); + for_each_netdev_rcu(net, dev) + __udp_tunnel_push_rx_port(dev, &ti); + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(udp_tunnel_notify_add_rx_port); + +static void __udp_tunnel_pull_rx_port(struct net_device *dev, + struct udp_tunnel_info *ti) +{ + switch (ti->type) { + case UDP_TUNNEL_TYPE_VXLAN: + if (!dev->netdev_ops->ndo_del_vxlan_port) + break; + + dev->netdev_ops->ndo_del_vxlan_port(dev, + ti->sa_family, + ti->port); + break; + case UDP_TUNNEL_TYPE_GENEVE: + if (!dev->netdev_ops->ndo_del_geneve_port) + break; + + dev->netdev_ops->ndo_del_geneve_port(dev, + ti->sa_family, + ti->port); + break; + default: + break; + } +} + +/* Notify netdevs that UDP port is no more listening */ +void udp_tunnel_notify_del_rx_port(struct socket *sock, unsigned short type) +{ + struct sock *sk = sock->sk; + struct net *net = sock_net(sk); + struct udp_tunnel_info ti; + struct net_device *dev; + + ti.type = type; + ti.sa_family = sk->sk_family; + ti.port = inet_sk(sk)->inet_sport; + + rcu_read_lock(); + for_each_netdev_rcu(net, dev) + __udp_tunnel_pull_rx_port(dev, &ti); + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(udp_tunnel_notify_del_rx_port); + void udp_tunnel_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb, __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port, |