1 /*
2 * Generic parts
3 * Linux ethernet bridge
4 *
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
7 *
8 * $Id: br.c,v 1.45 2000/10/22 18:26:07 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 #include <linux/if_bridge.h>
24 #include <asm/uaccess.h>
25 #include "br_private.h"
26
27 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
28 #include "../atm/lec.h"
29 #endif
30
31 void br_dec_use_count()
32 {
33 MOD_DEC_USE_COUNT;
34 }
35
36 void br_inc_use_count()
37 {
38 MOD_INC_USE_COUNT;
39 }
40
41 static int __init br_init(void)
42 {
43 printk(KERN_INFO "NET4: Ethernet Bridge 008 for NET4.0\n");
44
45 br_handle_frame_hook = br_handle_frame;
46 #ifdef CONFIG_INET
47 br_ioctl_hook = br_ioctl_deviceless_stub;
48 #endif
49 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
50 br_fdb_get_hook = br_fdb_get;
51 br_fdb_put_hook = br_fdb_put;
52 #endif
53 register_netdevice_notifier(&br_device_notifier);
54
55 return 0;
56 }
57
58 static void __br_clear_frame_hook(void)
59 {
60 br_handle_frame_hook = NULL;
61 }
62
63 static void __br_clear_ioctl_hook(void)
64 {
65 #ifdef CONFIG_INET
66 br_ioctl_hook = NULL;
67 #endif
68 }
69
70 static void __exit br_deinit(void)
71 {
72 unregister_netdevice_notifier(&br_device_notifier);
73 br_call_ioctl_atomic(__br_clear_ioctl_hook);
74 net_call_rx_atomic(__br_clear_frame_hook);
75 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
76 br_fdb_get_hook = NULL;
77 br_fdb_put_hook = NULL;
78 #endif
79 }
80
81 EXPORT_NO_SYMBOLS;
82
83 module_init(br_init)
84 module_exit(br_deinit)
85
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