/*
   *	Generic parts
   *	Linux ethernet bridge
   *
   *	Authors:
   *	Lennert Buytenhek		<buytenh@gnu.org>
   *

   *	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/module.h>
  #include <linux/kernel.h>
  #include <linux/netdevice.h>
  #include <linux/etherdevice.h>
  #include <linux/init.h>

  #include <linux/llc.h>
  #include <net/llc.h>

  #include <net/stp.h>

  
  #include "br_private.h"

  static const struct stp_proto br_stp_proto = {
  	.rcv	= br_stp_rcv,
  };

  static struct pernet_operations br_net_ops = {
  	.exit	= br_net_exit,
  };

  static int __init br_init(void)
  {

  	int err;

  	err = stp_proto_register(&br_stp_proto);
  	if (err < 0) {

  		pr_err("bridge: can't register sap for STP
  ");

  		return err;

  	}

  	err = br_fdb_init();
  	if (err)

  		goto err_out;

  	err = register_pernet_subsys(&br_net_ops);

  	if (err)
  		goto err_out1;

  	err = br_netfilter_init();

  	if (err)
  		goto err_out2;

  	err = register_netdevice_notifier(&br_device_notifier);

  	if (err)
  		goto err_out3;

  	err = br_netlink_init();
  	if (err)
  		goto err_out4;

  	brioctl_set(br_ioctl_deviceless_stub);

  #if IS_ENABLED(CONFIG_ATM_LANE)

  	br_fdb_test_addr_hook = br_fdb_test_addr;
  #endif

  	return 0;

  err_out4:

  	unregister_netdevice_notifier(&br_device_notifier);

  err_out3:

  	br_netfilter_fini();

  err_out2:
  	unregister_pernet_subsys(&br_net_ops);

  err_out1:

  	br_fdb_fini();
  err_out:

  	stp_proto_unregister(&br_stp_proto);

  	return err;

  }
  
  static void __exit br_deinit(void)
  {

  	stp_proto_unregister(&br_stp_proto);

  	br_netlink_fini();

  	unregister_netdevice_notifier(&br_device_notifier);
  	brioctl_set(NULL);

  	unregister_pernet_subsys(&br_net_ops);

  	rcu_barrier(); /* Wait for completion of call_rcu()'s */

  	br_netfilter_fini();

  #if IS_ENABLED(CONFIG_ATM_LANE)

  	br_fdb_test_addr_hook = NULL;
  #endif

  	br_fdb_fini();
  }

  module_init(br_init)
  module_exit(br_deinit)
  MODULE_LICENSE("GPL");

  MODULE_VERSION(BR_VERSION);

  MODULE_ALIAS_RTNL_LINK("bridge");