LXR linux/net/ipv6/fib6

   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, struct net *net,
  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, net, 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(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{
  32        int err;
  33
  34        err = fib6_rules_dump(net, nb);
  35        if (err)
  36                return err;
  37
  38        return fib6_tables_dump(net, nb);
  39}
  40
  41static const struct fib_notifier_ops fib6_notifier_ops_template = {
  42        .family         = AF_INET6,
  43        .fib_seq_read   = fib6_seq_read,
  44        .fib_dump       = fib6_dump,
  45        .owner          = THIS_MODULE,
  46};
  47
  48int __net_init fib6_notifier_init(struct net *net)
  49{
  50        struct fib_notifier_ops *ops;
  51
  52        ops = fib_notifier_ops_register(&fib6_notifier_ops_template, net);
  53        if (IS_ERR(ops))
  54                return PTR_ERR(ops);
  55        net->ipv6.notifier_ops = ops;
  56
  57        return 0;
  58}
  59
  60void __net_exit fib6_notifier_exit(struct net *net)
  61{
  62        fib_notifier_ops_unregister(net->ipv6.notifier_ops);
  63}
  64