Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Stephen Hemminger | cf0f02d | 2006-03-20 22:59:06 -0800 | [diff] [blame] | 22 | #include <linux/llc.h> |
| 23 | #include <net/llc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
| 25 | #include "br_private.h" |
| 26 | |
| 27 | int (*br_should_route_hook) (struct sk_buff **pskb) = NULL; |
| 28 | |
Stephen Hemminger | cf0f02d | 2006-03-20 22:59:06 -0800 | [diff] [blame] | 29 | static struct llc_sap *br_stp_sap; |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | static int __init br_init(void) |
| 32 | { |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 33 | int err; |
| 34 | |
Stephen Hemminger | cf0f02d | 2006-03-20 22:59:06 -0800 | [diff] [blame] | 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"); |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 38 | return -EADDRINUSE; |
Stephen Hemminger | cf0f02d | 2006-03-20 22:59:06 -0800 | [diff] [blame] | 39 | } |
| 40 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | br_fdb_init(); |
| 42 | |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 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 | |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame^] | 51 | br_netlink_init(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | brioctl_set(br_ioctl_deviceless_stub); |
| 53 | br_handle_frame_hook = br_handle_frame; |
| 54 | |
| 55 | br_fdb_get_hook = br_fdb_get; |
| 56 | br_fdb_put_hook = br_fdb_put; |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | return 0; |
Stephen Hemminger | c090971 | 2006-05-25 15:59:33 -0700 | [diff] [blame] | 59 | |
| 60 | err_out2: |
| 61 | br_netfilter_fini(); |
| 62 | err_out1: |
| 63 | llc_sap_put(br_stp_sap); |
| 64 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | static void __exit br_deinit(void) |
| 68 | { |
Stephen Hemminger | 387e2b0 | 2006-05-23 15:20:25 -0700 | [diff] [blame] | 69 | rcu_assign_pointer(br_stp_sap->rcv_func, NULL); |
Stephen Hemminger | cf0f02d | 2006-03-20 22:59:06 -0800 | [diff] [blame] | 70 | |
Stephen Hemminger | 11dc1f3 | 2006-05-25 16:00:12 -0700 | [diff] [blame^] | 71 | br_netlink_fini(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | br_netfilter_fini(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | unregister_netdevice_notifier(&br_device_notifier); |
| 74 | brioctl_set(NULL); |
| 75 | |
| 76 | br_cleanup_bridges(); |
| 77 | |
| 78 | synchronize_net(); |
| 79 | |
Stephen Hemminger | 387e2b0 | 2006-05-23 15:20:25 -0700 | [diff] [blame] | 80 | llc_sap_put(br_stp_sap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | br_fdb_get_hook = NULL; |
| 82 | br_fdb_put_hook = NULL; |
| 83 | |
| 84 | br_handle_frame_hook = NULL; |
| 85 | br_fdb_fini(); |
| 86 | } |
| 87 | |
| 88 | EXPORT_SYMBOL(br_should_route_hook); |
| 89 | |
| 90 | module_init(br_init) |
| 91 | module_exit(br_deinit) |
| 92 | MODULE_LICENSE("GPL"); |
Stephen Hemminger | 8cbb512e | 2005-12-21 19:01:30 -0800 | [diff] [blame] | 93 | MODULE_VERSION(BR_VERSION); |