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path: root/net/ipv4/udp_tunnel.c
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Diffstat (limited to 'net/ipv4/udp_tunnel.c')
-rw-r--r--net/ipv4/udp_tunnel.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c
index 47f12c73d959..58bd39fb14b4 100644
--- a/net/ipv4/udp_tunnel.c
+++ b/net/ipv4/udp_tunnel.c
@@ -76,6 +76,67 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
}
EXPORT_SYMBOL_GPL(setup_udp_tunnel_sock);
+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;
+
+ if (!dev->netdev_ops->ndo_udp_tunnel_add)
+ return;
+
+ ti.type = type;
+ ti.sa_family = sk->sk_family;
+ ti.port = inet_sk(sk)->inet_sport;
+
+ dev->netdev_ops->ndo_udp_tunnel_add(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) {
+ if (!dev->netdev_ops->ndo_udp_tunnel_add)
+ continue;
+ dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
+ }
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(udp_tunnel_notify_add_rx_port);
+
+/* 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) {
+ if (!dev->netdev_ops->ndo_udp_tunnel_del)
+ continue;
+ dev->netdev_ops->ndo_udp_tunnel_del(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,