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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Generic parts
3 * Linux ethernet bridge
4 *
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
7 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version
11 * 2 of the License, or (at your option) any later version.
12 */
13
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/netdevice.h>
17#include <linux/etherdevice.h>
18#include <linux/init.h>
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -080019#include <linux/llc.h>
20#include <net/llc.h>
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070021#include <net/stp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
23#include "br_private.h"
24
Herbert Xu3db05fe2007-10-15 00:53:15 -070025int (*br_should_route_hook)(struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070027static const struct stp_proto br_stp_proto = {
28 .rcv = br_stp_rcv,
29};
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -080030
Alexey Dobriyan712d6952008-09-08 16:20:18 -070031static struct pernet_operations br_net_ops = {
32 .exit = br_net_exit,
33};
34
Linus Torvalds1da177e2005-04-16 15:20:36 -070035static int __init br_init(void)
36{
Stephen Hemmingerc0909712006-05-25 15:59:33 -070037 int err;
38
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070039 err = stp_proto_register(&br_stp_proto);
40 if (err < 0) {
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -080041 printk(KERN_ERR "bridge: can't register sap for STP\n");
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070042 return err;
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -080043 }
44
Akinobu Mita87a596e2007-04-07 18:57:07 +090045 err = br_fdb_init();
46 if (err)
Pavel Emelyanov17efdd42007-11-29 23:41:43 +110047 goto err_out;
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
Alexey Dobriyan712d6952008-09-08 16:20:18 -070049 err = register_pernet_subsys(&br_net_ops);
Stephen Hemmingerc0909712006-05-25 15:59:33 -070050 if (err)
51 goto err_out1;
52
Alexey Dobriyan712d6952008-09-08 16:20:18 -070053 err = br_netfilter_init();
Stephen Hemmingerc0909712006-05-25 15:59:33 -070054 if (err)
55 goto err_out2;
56
Alexey Dobriyan712d6952008-09-08 16:20:18 -070057 err = register_netdevice_notifier(&br_device_notifier);
Thomas Graf32fe21c2007-03-22 11:59:03 -070058 if (err)
59 goto err_out3;
60
Alexey Dobriyan712d6952008-09-08 16:20:18 -070061 err = br_netlink_init();
62 if (err)
63 goto err_out4;
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 brioctl_set(br_ioctl_deviceless_stub);
66 br_handle_frame_hook = br_handle_frame;
67
68 br_fdb_get_hook = br_fdb_get;
69 br_fdb_put_hook = br_fdb_put;
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 return 0;
Alexey Dobriyan712d6952008-09-08 16:20:18 -070072err_out4:
Thomas Graf32fe21c2007-03-22 11:59:03 -070073 unregister_netdevice_notifier(&br_device_notifier);
Alexey Dobriyan712d6952008-09-08 16:20:18 -070074err_out3:
Stephen Hemmingerc0909712006-05-25 15:59:33 -070075 br_netfilter_fini();
Alexey Dobriyan712d6952008-09-08 16:20:18 -070076err_out2:
77 unregister_pernet_subsys(&br_net_ops);
Stephen Hemmingerc0909712006-05-25 15:59:33 -070078err_out1:
Pavel Emelyanov17efdd42007-11-29 23:41:43 +110079 br_fdb_fini();
80err_out:
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070081 stp_proto_unregister(&br_stp_proto);
Stephen Hemmingerc0909712006-05-25 15:59:33 -070082 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -070083}
84
85static void __exit br_deinit(void)
86{
Patrick McHardy7c85fbf2008-07-05 21:25:56 -070087 stp_proto_unregister(&br_stp_proto);
Stephen Hemmingercf0f02d2006-03-20 22:59:06 -080088
Stephen Hemminger11dc1f32006-05-25 16:00:12 -070089 br_netlink_fini();
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 unregister_netdevice_notifier(&br_device_notifier);
91 brioctl_set(NULL);
92
Alexey Dobriyan712d6952008-09-08 16:20:18 -070093 unregister_pernet_subsys(&br_net_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
95 synchronize_net();
96
Bodo Stroesserd69efb12008-04-29 03:18:13 -070097 br_netfilter_fini();
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 br_fdb_get_hook = NULL;
99 br_fdb_put_hook = NULL;
100
101 br_handle_frame_hook = NULL;
102 br_fdb_fini();
103}
104
105EXPORT_SYMBOL(br_should_route_hook);
106
107module_init(br_init)
108module_exit(br_deinit)
109MODULE_LICENSE("GPL");
Stephen Hemminger8cbb5122005-12-21 19:01:30 -0800110MODULE_VERSION(BR_VERSION);