/*
   * NET4:	Sysctl interface to net af_unix subsystem.
   *
   * Authors:	Mike Shaver.
   *
   *		This program is free software; you can redistribute it and/or
   *		modify it under the terms of the GNU General Public License
   *		as published by the Free Software Foundation; either version
   *		2 of the License, or (at your option) any later version.
   */
  
  #include <linux/mm.h>

  #include <linux/slab.h>

  #include <linux/sysctl.h>

  #include <net/af_unix.h>

  
  static ctl_table unix_table[] = {
  	{

  		.procname	= "max_dgram_qlen",

  		.data		= &init_net.unx.sysctl_max_dgram_qlen,

  		.maxlen		= sizeof(int),
  		.mode		= 0644,

  		.proc_handler	= proc_dointvec

  	},

  	{ }

  };

  static struct ctl_path unix_path[] = {

  	{ .procname = "net", },
  	{ .procname = "unix", },

  	{ },

  };

  int __net_init unix_sysctl_register(struct net *net)

  {

  	struct ctl_table *table;
  
  	table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL);
  	if (table == NULL)
  		goto err_alloc;

  	table[0].data = &net->unx.sysctl_max_dgram_qlen;
  	net->unx.ctl = register_net_sysctl_table(net, unix_path, table);
  	if (net->unx.ctl == NULL)

  		goto err_reg;
  
  	return 0;
  
  err_reg:
  	kfree(table);
  err_alloc:
  	return -ENOMEM;

  }

  void unix_sysctl_unregister(struct net *net)

  {

  	struct ctl_table *table;

  	table = net->unx.ctl->ctl_table_arg;
  	unregister_sysctl_table(net->unx.ctl);

  	kfree(table);

  }