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[~andy/linux] / include / net / netevent.h
1 #ifndef _NET_EVENT_H
2 #define _NET_EVENT_H
3
4 /*
5  *      Generic netevent notifiers
6  *
7  *      Authors:
8  *      Tom Tucker              <tom@opengridcomputing.com>
9  *      Steve Wise              <swise@opengridcomputing.com>
10  *
11  *      Changes:
12  */
13
14 struct dst_entry;
15 struct neighbour;
16
17 struct netevent_redirect {
18         struct dst_entry *old;
19         struct neighbour *old_neigh;
20         struct dst_entry *new;
21         struct neighbour *new_neigh;
22         const void *daddr;
23 };
24
25 enum netevent_notif_type {
26         NETEVENT_NEIGH_UPDATE = 1, /* arg is struct neighbour ptr */
27         NETEVENT_REDIRECT,         /* arg is struct netevent_redirect ptr */
28 };
29
30 extern int register_netevent_notifier(struct notifier_block *nb);
31 extern int unregister_netevent_notifier(struct notifier_block *nb);
32 extern int call_netevent_notifiers(unsigned long val, void *v);
33
34 #endif