vxlan_multicast: Move multicast helpers to a separate file

subsequent patches will add more helpers.

Signed-off-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 123 deletions

diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 8c193d47c1e4..11286e2191a1 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -1445,58 +1445,6 @@ static bool vxlan_snoop(struct net_device *dev,
 	return false;
 }
 
-/* See if multicast group is already in use by other ID */
-static bool vxlan_group_used(struct vxlan_net *vn, struct vxlan_dev *dev,
-			     union vxlan_addr *rip, int rifindex)
-{
-	union vxlan_addr *ip = (rip ? : &dev->default_dst.remote_ip);
-	int ifindex = (rifindex ? : dev->default_dst.remote_ifindex);
-	struct vxlan_dev *vxlan;
-	struct vxlan_sock *sock4;
-#if IS_ENABLED(CONFIG_IPV6)
-	struct vxlan_sock *sock6;
-#endif
-	unsigned short family = dev->default_dst.remote_ip.sa.sa_family;
-
-	sock4 = rtnl_dereference(dev->vn4_sock);
-
-	/* The vxlan_sock is only used by dev, leaving group has
-	 * no effect on other vxlan devices.
-	 */
-	if (family == AF_INET && sock4 && refcount_read(&sock4->refcnt) == 1)
-		return false;
-#if IS_ENABLED(CONFIG_IPV6)
-	sock6 = rtnl_dereference(dev->vn6_sock);
-	if (family == AF_INET6 && sock6 && refcount_read(&sock6->refcnt) == 1)
-		return false;
-#endif
-
-	list_for_each_entry(vxlan, &vn->vxlan_list, next) {
-		if (!netif_running(vxlan->dev) || vxlan == dev)
-			continue;
-
-		if (family == AF_INET &&
-		    rtnl_dereference(vxlan->vn4_sock) != sock4)
-			continue;
-#if IS_ENABLED(CONFIG_IPV6)
-		if (family == AF_INET6 &&
-		    rtnl_dereference(vxlan->vn6_sock) != sock6)
-			continue;
-#endif
-
-		if (!vxlan_addr_equal(&vxlan->default_dst.remote_ip,
-				      ip))
-			continue;
-
-		if (vxlan->default_dst.remote_ifindex != ifindex)
-			continue;
-
-		return true;
-	}
-
-	return false;
-}
-
 static bool __vxlan_sock_release_prep(struct vxlan_sock *vs)
 {
 	struct vxlan_net *vn;
@@ -1545,77 +1493,6 @@ static void vxlan_sock_release(struct vxlan_dev *vxlan)
 #endif
 }
 
-/* Update multicast group membership when first VNI on
- * multicast address is brought up
- */
-static int vxlan_igmp_join(struct vxlan_dev *vxlan, union vxlan_addr *rip,
-			   int rifindex)
-{
-	union vxlan_addr *ip = (rip ? : &vxlan->default_dst.remote_ip);
-	int ifindex = (rifindex ? : vxlan->default_dst.remote_ifindex);
-	int ret = -EINVAL;
-	struct sock *sk;
-
-	if (ip->sa.sa_family == AF_INET) {
-		struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);
-		struct ip_mreqn mreq = {
-			.imr_multiaddr.s_addr	= ip->sin.sin_addr.s_addr,
-			.imr_ifindex		= ifindex,
-		};
-
-		sk = sock4->sock->sk;
-		lock_sock(sk);
-		ret = ip_mc_join_group(sk, &mreq);
-		release_sock(sk);
-#if IS_ENABLED(CONFIG_IPV6)
-	} else {
-		struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);
-
-		sk = sock6->sock->sk;
-		lock_sock(sk);
-		ret = ipv6_stub->ipv6_sock_mc_join(sk, ifindex,
-						   &ip->sin6.sin6_addr);
-		release_sock(sk);
-#endif
-	}
-
-	return ret;
-}
-
-static int vxlan_igmp_leave(struct vxlan_dev *vxlan, union vxlan_addr *rip,
-			    int rifindex)
-{
-	union vxlan_addr *ip = (rip ? : &vxlan->default_dst.remote_ip);
-	int ifindex = (rifindex ? : vxlan->default_dst.remote_ifindex);
-	int ret = -EINVAL;
-	struct sock *sk;
-
-	if (ip->sa.sa_family == AF_INET) {
-		struct vxlan_sock *sock4 = rtnl_dereference(vxlan->vn4_sock);
-		struct ip_mreqn mreq = {
-			.imr_multiaddr.s_addr	= ip->sin.sin_addr.s_addr,
-			.imr_ifindex		= ifindex,
-		};
-
-		sk = sock4->sock->sk;
-		lock_sock(sk);
-		ret = ip_mc_leave_group(sk, &mreq);
-		release_sock(sk);
-#if IS_ENABLED(CONFIG_IPV6)
-	} else {
-		struct vxlan_sock *sock6 = rtnl_dereference(vxlan->vn6_sock);
-
-		sk = sock6->sock->sk;
-		lock_sock(sk);
-		ret = ipv6_stub->ipv6_sock_mc_drop(sk, ifindex,
-						   &ip->sin6.sin6_addr);
-		release_sock(sk);
-#endif
-	}
-
-	return ret;
-}
-
 static bool vxlan_remcsum(struct vxlanhdr *unparsed,
 			  struct sk_buff *skb, u32 vxflags)
 {