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/netdevice.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/init.h>
  22
  23 #include "br_private.h"
  24
  25 int (*br_should_route_hook) (struct sk_buff **pskb) = NULL;
  26
  27 static int __init br_init(void)
  28 {
  29         br_fdb_init();
  30
  31 #ifdef CONFIG_BRIDGE_NETFILTER
  32         if (br_netfilter_init())
  33                 return 1;
  34 #endif
  35         brioctl_set(br_ioctl_deviceless_stub);
  36         br_handle_frame_hook = br_handle_frame;
  37
  38         br_fdb_get_hook = br_fdb_get;
  39         br_fdb_put_hook = br_fdb_put;
  40
  41         register_netdevice_notifier(&br_device_notifier);
  42
  43         return 0;
  44 }
  45
  46 static void __exit br_deinit(void)
  47 {
  48 #ifdef CONFIG_BRIDGE_NETFILTER
  49         br_netfilter_fini();
  50 #endif
  51         unregister_netdevice_notifier(&br_device_notifier);
  52         brioctl_set(NULL);
  53
  54         br_cleanup_bridges();
  55
  56         synchronize_net();
  57
  58         br_fdb_get_hook = NULL;
  59         br_fdb_put_hook = NULL;
  60
  61         br_handle_frame_hook = NULL;
  62         br_fdb_fini();
  63 }
  64
  65 EXPORT_SYMBOL(br_should_route_hook);
  66
  67 module_init(br_init)
  68 module_exit(br_deinit)
  69 MODULE_LICENSE("GPL");
  70 MODULE_VERSION(BR_VERSION);