1 #include <linux/rtnetlink.h>
2 #include <linux/notifier.h>
3 #include <linux/socket.h>
4 #include <linux/kernel.h>
5 #include <linux/export.h>
6 #include <net/net_namespace.h>
7 #include <net/fib_notifier.h>
8 #include <net/netns/ipv4.h>
9 #include <net/ip_fib.h>
11 int call_fib4_notifier(struct notifier_block
*nb
, struct net
*net
,
12 enum fib_event_type event_type
,
13 struct fib_notifier_info
*info
)
15 info
->family
= AF_INET
;
16 return call_fib_notifier(nb
, net
, event_type
, info
);
19 int call_fib4_notifiers(struct net
*net
, enum fib_event_type event_type
,
20 struct fib_notifier_info
*info
)
24 info
->family
= AF_INET
;
26 return call_fib_notifiers(net
, event_type
, info
);
29 static unsigned int fib4_seq_read(struct net
*net
)
33 return net
->ipv4
.fib_seq
+ fib4_rules_seq_read(net
);
36 static int fib4_dump(struct net
*net
, struct notifier_block
*nb
)
40 err
= fib4_rules_dump(net
, nb
);
49 static const struct fib_notifier_ops fib4_notifier_ops_template
= {
51 .fib_seq_read
= fib4_seq_read
,
52 .fib_dump
= fib4_dump
,
56 int __net_init
fib4_notifier_init(struct net
*net
)
58 struct fib_notifier_ops
*ops
;
60 net
->ipv4
.fib_seq
= 0;
62 ops
= fib_notifier_ops_register(&fib4_notifier_ops_template
, net
);
65 net
->ipv4
.notifier_ops
= ops
;
70 void __net_exit
fib4_notifier_exit(struct net
*net
)
72 fib_notifier_ops_unregister(net
->ipv4
.notifier_ops
);