1#ifndef __NET_FIB_NOTIFIER_H
2#define __NET_FIB_NOTIFIER_H
3
4#include <linux/types.h>
5#include <linux/notifier.h>
6#include <net/net_namespace.h>
7
8struct module;
9
10struct fib_notifier_info {
11	int family;
12	struct netlink_ext_ack  *extack;
13};
14
15enum fib_event_type {
16	FIB_EVENT_ENTRY_REPLACE,
17	FIB_EVENT_ENTRY_APPEND,
18	FIB_EVENT_ENTRY_ADD,
19	FIB_EVENT_ENTRY_DEL,
20	FIB_EVENT_RULE_ADD,
21	FIB_EVENT_RULE_DEL,
22	FIB_EVENT_NH_ADD,
23	FIB_EVENT_NH_DEL,
24	FIB_EVENT_VIF_ADD,
25	FIB_EVENT_VIF_DEL,
26};
27
28struct fib_notifier_ops {
29	int family;
30	struct list_head list;
31	unsigned int (*fib_seq_read)(struct net *net);
32	int (*fib_dump)(struct net *net, struct notifier_block *nb,
33			struct netlink_ext_ack *extack);
34	struct module *owner;
35	struct rcu_head rcu;
36};
37
38int call_fib_notifier(struct notifier_block *nb,
39		      enum fib_event_type event_type,
40		      struct fib_notifier_info *info);
41int call_fib_notifiers(struct net *net, enum fib_event_type event_type,
42		       struct fib_notifier_info *info);
43int register_fib_notifier(struct net *net, struct notifier_block *nb,
44			  void (*cb)(struct notifier_block *nb),
45			  struct netlink_ext_ack *extack);
46int unregister_fib_notifier(struct net *net, struct notifier_block *nb);
47struct fib_notifier_ops *
48fib_notifier_ops_register(const struct fib_notifier_ops *tmpl, struct net *net);
49void fib_notifier_ops_unregister(struct fib_notifier_ops *ops);
50
51#endif
52