[NETLIKN]: Allow removing multicast groups.

Allow kicking listeners out of a multicast group when necessary
(for example if that group is going to be removed.)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Patrick McHardy <kaber@trash.net>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg 2007-07-18 15:47:05 -07:00 committed by David S. Miller
parent b4ff4f0419
commit 84659eb529
2 changed files with 46 additions and 12 deletions

View file

@ -162,6 +162,7 @@ extern struct sock *netlink_kernel_create(int unit, unsigned int groups,
struct mutex *cb_mutex,
struct module *module);
extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group);
extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
extern int netlink_has_listeners(struct sock *sk, unsigned int group);
extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);