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> 22 #include <linux/llc.h> 23 #include <net/llc.h> 24 25 #include "br_private.h" 26 27 int (*br_should_route_hook) (struct sk_buff **pskb) = NULL; 28 29 static struct llc_sap *br_stp_sap; 30 31 static int __init br_init(void) 32 { 33 br_stp_sap = llc_sap_open(LLC_SAP_BSPAN, br_stp_rcv); 34 if (!br_stp_sap) { 35 printk(KERN_ERR "bridge: can't register sap for STP\n"); 36 return -EBUSY; 37 } 38 39 br_fdb_init(); 40 41 #ifdef CONFIG_BRIDGE_NETFILTER 42 if (br_netfilter_init()) 43 return 1; 44 #endif 45 brioctl_set(br_ioctl_deviceless_stub); 46 br_handle_frame_hook = br_handle_frame; 47 48 br_fdb_get_hook = br_fdb_get; 49 br_fdb_put_hook = br_fdb_put; 50 51 register_netdevice_notifier(&br_device_notifier); 52 53 return 0; 54 } 55 56 static void __exit br_deinit(void) 57 { 58 llc_sap_close(br_stp_sap); 59 60 #ifdef CONFIG_BRIDGE_NETFILTER 61 br_netfilter_fini(); 62 #endif 63 unregister_netdevice_notifier(&br_device_notifier); 64 brioctl_set(NULL); 65 66 br_cleanup_bridges(); 67 68 synchronize_net(); 69 70 br_fdb_get_hook = NULL; 71 br_fdb_put_hook = NULL; 72 73 br_handle_frame_hook = NULL; 74 br_fdb_fini(); 75 } 76 77 EXPORT_SYMBOL(br_should_route_hook); 78 79 module_init(br_init) 80 module_exit(br_deinit) 81 MODULE_LICENSE("GPL"); 82 MODULE_VERSION(BR_VERSION); 83