Eric Lee / smarc-fsl-linux-kernel

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net/ipv6/fib6_notifier.c 1.43 KB
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81f7e3824   Eric Lee   Initial Release, ... 
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  #include <linux/notifier.h>
  #include <linux/socket.h>
  #include <linux/kernel.h>
  #include <linux/export.h>
  #include <net/net_namespace.h>
  #include <net/fib_notifier.h>
  #include <net/netns/ipv6.h>
  #include <net/ip6_fib.h>
  
  int call_fib6_notifier(struct notifier_block *nb, struct net *net,
  		       enum fib_event_type event_type,
  		       struct fib_notifier_info *info)
  {
  	info->family = AF_INET6;
  	return call_fib_notifier(nb, net, event_type, info);
  }
  
  int call_fib6_notifiers(struct net *net, enum fib_event_type event_type,
  			struct fib_notifier_info *info)
  {
  	info->family = AF_INET6;
  	return call_fib_notifiers(net, event_type, info);
  }
  
  static unsigned int fib6_seq_read(struct net *net)
  {
  	return fib6_tables_seq_read(net) + fib6_rules_seq_read(net);
  }
  
  static int fib6_dump(struct net *net, struct notifier_block *nb)
  {
  	int err;
  
  	err = fib6_rules_dump(net, nb);
  	if (err)
  		return err;
  
  	return fib6_tables_dump(net, nb);
  }
  
  static const struct fib_notifier_ops fib6_notifier_ops_template = {
  	.family		= AF_INET6,
  	.fib_seq_read	= fib6_seq_read,
  	.fib_dump	= fib6_dump,
  	.owner		= THIS_MODULE,
  };
  
  int __net_init fib6_notifier_init(struct net *net)
  {
  	struct fib_notifier_ops *ops;
  
  	ops = fib_notifier_ops_register(&fib6_notifier_ops_template, net);
  	if (IS_ERR(ops))
  		return PTR_ERR(ops);
  	net->ipv6.notifier_ops = ops;
  
  	return 0;
  }
  
  void __net_exit fib6_notifier_exit(struct net *net)
  {
  	fib_notifier_ops_unregister(net->ipv6.notifier_ops);
  }