net/bridge/br.c

   1 /*
   2  *      Generic parts
   3  *      Linux ethernet bridge
   4  *
   5  *      Authors:
   6  *      Lennert Buytenhek               <buytenh@gnu.org>
   7  *
   8  *      $Id: br.c,v 1.47 2001/12/24 00:56:41 davem Exp $
   9  *
  10  *      This program is free software; you can redistribute it and/or
  11  *      modify it under the terms of the GNU General Public License
  12  *      as published by the Free Software Foundation; either version
  13  *      2 of the License, or (at your option) any later version.
  14  */
  15
  16 #include <linux/config.h>
  17 #include <linux/module.h>
  18 #include <linux/kernel.h>
  19 #include <linux/miscdevice.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/etherdevice.h>
  22 #include <linux/init.h>
  23
  24 #include "br_private.h"
  25
  26 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
  27 #include "../atm/lec.h"
  28 #endif
  29
  30 int (*br_should_route_hook) (struct sk_buff **pskb) = NULL;
  31
  32 static int __init br_init(void)
  33 {
  34         br_fdb_init();
  35
  36 #ifdef CONFIG_BRIDGE_NETFILTER
  37         if (br_netfilter_init())
  38                 return 1;
  39 #endif
  40         brioctl_set(br_ioctl_deviceless_stub);
  41         br_handle_frame_hook = br_handle_frame;
  42
  43 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
  44         br_fdb_get_hook = br_fdb_get;
  45         br_fdb_put_hook = br_fdb_put;
  46 #endif
  47         register_netdevice_notifier(&br_device_notifier);
  48
  49         return 0;
  50 }
  51
  52 static void __exit br_deinit(void)
  53 {
  54 #ifdef CONFIG_BRIDGE_NETFILTER
  55         br_netfilter_fini();
  56 #endif
  57         unregister_netdevice_notifier(&br_device_notifier);
  58         brioctl_set(NULL);
  59
  60         br_cleanup_bridges();
  61
  62         synchronize_net();
  63
  64 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
  65         br_fdb_get_hook = NULL;
  66         br_fdb_put_hook = NULL;
  67 #endif
  68
  69         br_handle_frame_hook = NULL;
  70         br_fdb_fini();
  71 }
  72
  73 EXPORT_SYMBOL(br_should_route_hook);
  74
  75 module_init(br_init)
  76 module_exit(br_deinit)
  77 MODULE_LICENSE("GPL");