tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Generic parts
3 * Linux ethernet bridge
4 *
5 * Authors:
6 * Lennert Buytenhek <buytenh@gnu.org>
7 *
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.
12 */
13
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>
22
23#include "br_private.h"
24
25int (*br_should_route_hook)(struct sk_buff *skb);
26
27static const struct stp_proto br_stp_proto = {
28 .rcv = br_stp_rcv,
29};
30
31static struct pernet_operations br_net_ops = {
32 .exit = br_net_exit,
33};
34
35static int __init br_init(void)
36{
37 int err;
38
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;
43 }
44
45 err = br_fdb_init();
46 if (err)
47 goto err_out;
48
49 err = register_pernet_subsys(&br_net_ops);
50 if (err)
51 goto err_out1;
52
53 err = br_netfilter_init();
54 if (err)
55 goto err_out2;
56
57 err = register_netdevice_notifier(&br_device_notifier);
58 if (err)
59 goto err_out3;
60
61 err = br_netlink_init();
62 if (err)
63 goto err_out4;
64
65 brioctl_set(br_ioctl_deviceless_stub);
66 br_handle_frame_hook = br_handle_frame;
67
68#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
69 br_fdb_test_addr_hook = br_fdb_test_addr;
70#endif
71
72 return 0;
73err_out4:
74 unregister_netdevice_notifier(&br_device_notifier);
75err_out3:
76 br_netfilter_fini();
77err_out2:
78 unregister_pernet_subsys(&br_net_ops);
79err_out1:
80 br_fdb_fini();
81err_out:
82 stp_proto_unregister(&br_stp_proto);
83 return err;
84}
85
86static void __exit br_deinit(void)
87{
88 stp_proto_unregister(&br_stp_proto);
89
90 br_netlink_fini();
91 unregister_netdevice_notifier(&br_device_notifier);
92 brioctl_set(NULL);
93
94 unregister_pernet_subsys(&br_net_ops);
95
96 rcu_barrier(); /* Wait for completion of call_rcu()'s */
97
98 br_netfilter_fini();
99#if defined(CONFIG_ATM_LANE) || defined(CONFIG_ATM_LANE_MODULE)
100 br_fdb_test_addr_hook = NULL;
101#endif
102
103 br_handle_frame_hook = NULL;
104 br_fdb_fini();
105}
106
107EXPORT_SYMBOL(br_should_route_hook);
108
109module_init(br_init)
110module_exit(br_deinit)
111MODULE_LICENSE("GPL");
112MODULE_VERSION(BR_VERSION);