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1da177e4 LT |
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> | |
cf0f02d0 SH |
22 | #include <linux/llc.h> |
23 | #include <net/llc.h> | |
1da177e4 LT |
24 | |
25 | #include "br_private.h" | |
26 | ||
27 | int (*br_should_route_hook) (struct sk_buff **pskb) = NULL; | |
28 | ||
cf0f02d0 SH |
29 | static struct llc_sap *br_stp_sap; |
30 | ||
1da177e4 LT |
31 | static int __init br_init(void) |
32 | { | |
c0909713 SH |
33 | int err; |
34 | ||
cf0f02d0 SH |
35 | br_stp_sap = llc_sap_open(LLC_SAP_BSPAN, br_stp_rcv); |
36 | if (!br_stp_sap) { | |
37 | printk(KERN_ERR "bridge: can't register sap for STP\n"); | |
c0909713 | 38 | return -EADDRINUSE; |
cf0f02d0 SH |
39 | } |
40 | ||
1da177e4 LT |
41 | br_fdb_init(); |
42 | ||
c0909713 SH |
43 | err = br_netfilter_init(); |
44 | if (err) | |
45 | goto err_out1; | |
46 | ||
47 | err = register_netdevice_notifier(&br_device_notifier); | |
48 | if (err) | |
49 | goto err_out2; | |
50 | ||
1da177e4 LT |
51 | brioctl_set(br_ioctl_deviceless_stub); |
52 | br_handle_frame_hook = br_handle_frame; | |
53 | ||
54 | br_fdb_get_hook = br_fdb_get; | |
55 | br_fdb_put_hook = br_fdb_put; | |
56 | ||
1da177e4 | 57 | return 0; |
c0909713 SH |
58 | |
59 | err_out2: | |
60 | br_netfilter_fini(); | |
61 | err_out1: | |
62 | llc_sap_put(br_stp_sap); | |
63 | return err; | |
1da177e4 LT |
64 | } |
65 | ||
66 | static void __exit br_deinit(void) | |
67 | { | |
387e2b04 | 68 | rcu_assign_pointer(br_stp_sap->rcv_func, NULL); |
cf0f02d0 | 69 | |
1da177e4 | 70 | br_netfilter_fini(); |
1da177e4 LT |
71 | unregister_netdevice_notifier(&br_device_notifier); |
72 | brioctl_set(NULL); | |
73 | ||
74 | br_cleanup_bridges(); | |
75 | ||
76 | synchronize_net(); | |
77 | ||
387e2b04 | 78 | llc_sap_put(br_stp_sap); |
1da177e4 LT |
79 | br_fdb_get_hook = NULL; |
80 | br_fdb_put_hook = NULL; | |
81 | ||
82 | br_handle_frame_hook = NULL; | |
83 | br_fdb_fini(); | |
84 | } | |
85 | ||
86 | EXPORT_SYMBOL(br_should_route_hook); | |
87 | ||
88 | module_init(br_init) | |
89 | module_exit(br_deinit) | |
90 | MODULE_LICENSE("GPL"); | |
8cbb512e | 91 | MODULE_VERSION(BR_VERSION); |