// SPDX-License-Identifier: GPL-2.0

  /*
   * sysctl_net_llc.c: sysctl interface to LLC net subsystem.

   *

   * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
   */

  #include <linux/mm.h>
  #include <linux/init.h>
  #include <linux/sysctl.h>

  #include <net/net_namespace.h>

  #include <net/llc.h>

  
  #ifndef CONFIG_SYSCTL
  #error This file should not be compiled without CONFIG_SYSCTL defined
  #endif

  static struct ctl_table llc2_timeout_table[] = {
  	{

  		.procname	= "ack",
  		.data		= &sysctl_llc2_ack_timeout,

  		.maxlen		= sizeof(sysctl_llc2_ack_timeout),

  		.mode		= 0644,

  		.proc_handler   = proc_dointvec_jiffies,

  	},
  	{

  		.procname	= "busy",
  		.data		= &sysctl_llc2_busy_timeout,

  		.maxlen		= sizeof(sysctl_llc2_busy_timeout),

  		.mode		= 0644,

  		.proc_handler   = proc_dointvec_jiffies,

  	},
  	{

  		.procname	= "p",
  		.data		= &sysctl_llc2_p_timeout,

  		.maxlen		= sizeof(sysctl_llc2_p_timeout),

  		.mode		= 0644,

  		.proc_handler   = proc_dointvec_jiffies,

  	},
  	{

  		.procname	= "rej",
  		.data		= &sysctl_llc2_rej_timeout,

  		.maxlen		= sizeof(sysctl_llc2_rej_timeout),

  		.mode		= 0644,

  		.proc_handler   = proc_dointvec_jiffies,

  	},

  	{ },

  };
  
  static struct ctl_table llc_station_table[] = {

  	{ },

  };

  static struct ctl_table_header *llc2_timeout_header;
  static struct ctl_table_header *llc_station_header;

  
  int __init llc_sysctl_init(void)
  {

  	llc2_timeout_header = register_net_sysctl(&init_net, "net/llc/llc2/timeout", llc2_timeout_table);
  	llc_station_header = register_net_sysctl(&init_net, "net/llc/station", llc_station_table);

  	if (!llc2_timeout_header || !llc_station_header) {
  		llc_sysctl_exit();
  		return -ENOMEM;
  	}
  	return 0;

  }
  
  void llc_sysctl_exit(void)
  {

  	if (llc2_timeout_header) {
  		unregister_net_sysctl_table(llc2_timeout_header);
  		llc2_timeout_header = NULL;
  	}
  	if (llc_station_header) {
  		unregister_net_sysctl_table(llc_station_header);
  		llc_station_header = NULL;

  	}
  }