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
10int 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
18int 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
25static unsigned int fib6_seq_read(const struct net *net)
26{
27 return fib6_tables_seq_read(net) + fib6_rules_seq_read(net);
28}
29
30static 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
42static 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
49int __net_init fib6_notifier_init(struct net *net)
50{
51 struct fib_notifier_ops *ops;
52
53 ops = fib_notifier_ops_register(tmpl: &fib6_notifier_ops_template, net);
54 if (IS_ERR(ptr: ops))
55 return PTR_ERR(ptr: ops);
56 net->ipv6.notifier_ops = ops;
57
58 return 0;
59}
60
61void __net_exit fib6_notifier_exit(struct net *net)
62{
63 fib_notifier_ops_unregister(ops: net->ipv6.notifier_ops);
64}
65