/* * Generic parts * Linux ethernet bridge * * Authors: * Lennert Buytenhek <buytenh@gnu.org> * * $Id: br.c,v 1.47 2001/12/24 00:56:41 davem Exp $ * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/init.h> #include <linux/llc.h> #include <net/llc.h> #include "br_private.h" int (*br_should_route_hook)(struct sk_buff *skb); static struct llc_sap *br_stp_sap; static int __init br_init(void) { int err; br_stp_sap = llc_sap_open(LLC_SAP_BSPAN, br_stp_rcv); if (!br_stp_sap) { printk(KERN_ERR "bridge: can't register sap for STP\n"); return -EADDRINUSE; } err = br_fdb_init(); if (err) goto err_out; err = br_netfilter_init(); if (err) goto err_out1; err = register_netdevice_notifier(&br_device_notifier); if (err) goto err_out2; err = br_netlink_init(); if (err) goto err_out3; brioctl_set(br_ioctl_deviceless_stub); br_handle_frame_hook = br_handle_frame; br_fdb_get_hook = br_fdb_get; br_fdb_put_hook = br_fdb_put; return 0; err_out3: unregister_netdevice_notifier(&br_device_notifier); err_out2: br_netfilter_fini(); err_out1: br_fdb_fini(); err_out: llc_sap_put(br_stp_sap); return err; } static void __exit br_deinit(void) { rcu_assign_pointer(br_stp_sap->rcv_func, NULL); br_netlink_fini(); unregister_netdevice_notifier(&br_device_notifier); brioctl_set(NULL); br_cleanup_bridges(); synchronize_net(); br_netfilter_fini(); llc_sap_put(br_stp_sap); br_fdb_get_hook = NULL; br_fdb_put_hook = NULL; br_handle_frame_hook = NULL; br_fdb_fini(); } EXPORT_SYMBOL(br_should_route_hook); module_init(br_init) module_exit(br_deinit) MODULE_LICENSE("GPL"); MODULE_VERSION(BR_VERSION);