Linux 2.6.31.6
[linux/fpc-iii.git] / net / bridge / br.c
blobe1241c76239a96fb3e4d027ba071b640c2904ceb
1 /*
2 * Generic parts
3 * Linux ethernet bridge
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
8 * 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.
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/netdevice.h>
17 #include <linux/etherdevice.h>
18 #include <linux/init.h>
19 #include <linux/llc.h>
20 #include <net/llc.h>
21 #include <net/stp.h>
23 #include "br_private.h"
25 int (*br_should_route_hook)(struct sk_buff *skb);
27 static const struct stp_proto br_stp_proto = {
28 .rcv = br_stp_rcv,
31 static struct pernet_operations br_net_ops = {
32 .exit = br_net_exit,
35 static int __init br_init(void)
37 int err;
39 err = stp_proto_register(&br_stp_proto);
40 if (err < 0) {
41 printk(KERN_ERR "bridge: can't register sap for STP\n");
42 return err;
45 err = br_fdb_init();
46 if (err)
47 goto err_out;
49 err = register_pernet_subsys(&br_net_ops);
50 if (err)
51 goto err_out1;
53 err = br_netfilter_init();
54 if (err)
55 goto err_out2;
57 err = register_netdevice_notifier(&br_device_notifier);
58 if (err)
59 goto err_out3;
61 err = br_netlink_init();
62 if (err)
63 goto err_out4;
65 brioctl_set(br_ioctl_deviceless_stub);
66 br_handle_frame_hook = br_handle_frame;
68 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
69 br_fdb_test_addr_hook = br_fdb_test_addr;
70 #endif
72 return 0;
73 err_out4:
74 unregister_netdevice_notifier(&br_device_notifier);
75 err_out3:
76 br_netfilter_fini();
77 err_out2:
78 unregister_pernet_subsys(&br_net_ops);
79 err_out1:
80 br_fdb_fini();
81 err_out:
82 stp_proto_unregister(&br_stp_proto);
83 return err;
86 static void __exit br_deinit(void)
88 stp_proto_unregister(&br_stp_proto);
90 br_netlink_fini();
91 unregister_netdevice_notifier(&br_device_notifier);
92 brioctl_set(NULL);
94 unregister_pernet_subsys(&br_net_ops);
96 rcu_barrier(); /* Wait for completion of call_rcu()'s */
98 br_netfilter_fini();
99 #if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
100 br_fdb_test_addr_hook = NULL;
101 #endif
103 br_handle_frame_hook = NULL;
104 br_fdb_fini();
107 EXPORT_SYMBOL(br_should_route_hook);
109 module_init(br_init)
110 module_exit(br_deinit)
111 MODULE_LICENSE("GPL");
112 MODULE_VERSION(BR_VERSION);