1 #include <linux/notifier.h>
2 #include <linux/socket.h>
3 #include <linux/kernel.h>
4 #include <linux/export.h>
5 #include <net/net_namespace.h>
6 #include <net/fib_notifier.h>
7 #include <net/netns/ipv6.h>
8 #include <net/ip6_fib.h>
9
10 int call_fib6_notifier(struct notifier_block *nb,
11 enum fib_event_type event_type,
12 struct fib_notifier_info *info)
13 {
14 info->family = AF_INET6;
15 return call_fib_notifier(nb, event_type, info);
16 }
17
18 int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
19 struct fib_notifier_info *info)
20 {
21 info->family = AF_INET6;
22 return call_fib_notifiers(net, event_type, info);
23 }
24
25 static unsigned int fib6_seq_read(struct net *net)
26 {
27 return fib6_tables_seq_read(net) + fib6_rules_seq_read(net);
28 }
29
30 static int fib6_dump(struct net *net, struct notifier_block *nb,
31 struct netlink_ext_ack *extack)
32 {
33 int err;
34
35 err = fib6_rules_dump(net, nb, extack);
36 if (err)
37 return err;
38
39 return fib6_tables_dump(net, nb, extack);
40 }
41
42 static const struct fib_notifier_ops fib6_notifier_ops_template = {
43 .family = AF_INET6,
44 .fib_seq_read = fib6_seq_read,
45 .fib_dump = fib6_dump,
46 .owner = THIS_MODULE,
47 };
48
49 int __net_init fib6_notifier_init(struct net *net)
50 {
51 struct fib_notifier_ops *ops;
52
53 ops = fib_notifier_ops_register(&fib6_notifier_ops_template, net);
54 if (IS_ERR(ops))
55 return PTR_ERR(ops);
56 net->ipv6.notifier_ops = ops;
57
58 return 0;
59 }
60
61 void __net_exit fib6_notifier_exit(struct net *net)
62 {
63 fib_notifier_ops_unregister(net->ipv6.notifier_ops);
64 }
65
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