[PATCH] w1: Userspace communication protocol over connector.
[linux-2.6/verdex.git] / net / bridge / br.c
blob654401ceb2dbdf679522c8ce92c5699c5589c613
1 /*
2 * Generic parts
3 * Linux ethernet bridge
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
8 * $Id: br.c,v 1.47 2001/12/24 00:56:41 davem Exp $
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.
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 #include <linux/llc.h>
23 #include <net/llc.h>
25 #include "br_private.h"
27 int (*br_should_route_hook) (struct sk_buff **pskb) = NULL;
29 static struct llc_sap *br_stp_sap;
31 static int __init br_init(void)
33 int err;
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");
38 return -EADDRINUSE;
41 br_fdb_init();
43 err = br_netfilter_init();
44 if (err)
45 goto err_out1;
47 err = register_netdevice_notifier(&br_device_notifier);
48 if (err)
49 goto err_out2;
51 br_netlink_init();
52 brioctl_set(br_ioctl_deviceless_stub);
53 br_handle_frame_hook = br_handle_frame;
55 br_fdb_get_hook = br_fdb_get;
56 br_fdb_put_hook = br_fdb_put;
58 return 0;
60 err_out2:
61 br_netfilter_fini();
62 err_out1:
63 llc_sap_put(br_stp_sap);
64 return err;
67 static void __exit br_deinit(void)
69 rcu_assign_pointer(br_stp_sap->rcv_func, NULL);
71 br_netlink_fini();
72 br_netfilter_fini();
73 unregister_netdevice_notifier(&br_device_notifier);
74 brioctl_set(NULL);
76 br_cleanup_bridges();
78 synchronize_net();
80 llc_sap_put(br_stp_sap);
81 br_fdb_get_hook = NULL;
82 br_fdb_put_hook = NULL;
84 br_handle_frame_hook = NULL;
85 br_fdb_fini();
88 EXPORT_SYMBOL(br_should_route_hook);
90 module_init(br_init)
91 module_exit(br_deinit)
92 MODULE_LICENSE("GPL");
93 MODULE_VERSION(BR_VERSION);