1*4882a593Smuzhiyun #include <linux/notifier.h>
2*4882a593Smuzhiyun #include <linux/socket.h>
3*4882a593Smuzhiyun #include <linux/kernel.h>
4*4882a593Smuzhiyun #include <linux/export.h>
5*4882a593Smuzhiyun #include <net/net_namespace.h>
6*4882a593Smuzhiyun #include <net/fib_notifier.h>
7*4882a593Smuzhiyun #include <net/netns/ipv6.h>
8*4882a593Smuzhiyun #include <net/ip6_fib.h>
9*4882a593Smuzhiyun
call_fib6_notifier(struct notifier_block * nb,enum fib_event_type event_type,struct fib_notifier_info * info)10*4882a593Smuzhiyun int call_fib6_notifier(struct notifier_block *nb,
11*4882a593Smuzhiyun enum fib_event_type event_type,
12*4882a593Smuzhiyun struct fib_notifier_info *info)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun info->family = AF_INET6;
15*4882a593Smuzhiyun return call_fib_notifier(nb, event_type, info);
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun
call_fib6_notifiers(struct net * net,enum fib_event_type event_type,struct fib_notifier_info * info)18*4882a593Smuzhiyun int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
19*4882a593Smuzhiyun struct fib_notifier_info *info)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun info->family = AF_INET6;
22*4882a593Smuzhiyun return call_fib_notifiers(net, event_type, info);
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun
fib6_seq_read(struct net * net)25*4882a593Smuzhiyun static unsigned int fib6_seq_read(struct net *net)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun return fib6_tables_seq_read(net) + fib6_rules_seq_read(net);
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
fib6_dump(struct net * net,struct notifier_block * nb,struct netlink_ext_ack * extack)30*4882a593Smuzhiyun static int fib6_dump(struct net *net, struct notifier_block *nb,
31*4882a593Smuzhiyun struct netlink_ext_ack *extack)
32*4882a593Smuzhiyun {
33*4882a593Smuzhiyun int err;
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun err = fib6_rules_dump(net, nb, extack);
36*4882a593Smuzhiyun if (err)
37*4882a593Smuzhiyun return err;
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun return fib6_tables_dump(net, nb, extack);
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun static const struct fib_notifier_ops fib6_notifier_ops_template = {
43*4882a593Smuzhiyun .family = AF_INET6,
44*4882a593Smuzhiyun .fib_seq_read = fib6_seq_read,
45*4882a593Smuzhiyun .fib_dump = fib6_dump,
46*4882a593Smuzhiyun .owner = THIS_MODULE,
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
fib6_notifier_init(struct net * net)49*4882a593Smuzhiyun int __net_init fib6_notifier_init(struct net *net)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun struct fib_notifier_ops *ops;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun ops = fib_notifier_ops_register(&fib6_notifier_ops_template, net);
54*4882a593Smuzhiyun if (IS_ERR(ops))
55*4882a593Smuzhiyun return PTR_ERR(ops);
56*4882a593Smuzhiyun net->ipv6.notifier_ops = ops;
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun return 0;
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
fib6_notifier_exit(struct net * net)61*4882a593Smuzhiyun void __net_exit fib6_notifier_exit(struct net *net)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun fib_notifier_ops_unregister(net->ipv6.notifier_ops);
64*4882a593Smuzhiyun }
65