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 25 int (*br_should_route_hook)(struct sk_buff *skb); 26 27 static const struct stp_proto br_stp_proto = { 28 .rcv = br_stp_rcv, 29 }; 30 31 static int __init br_init(void) 32 { 33 int err; 34 35 err = stp_proto_register(&br_stp_proto); 36 if (err < 0) { 37 printk(KERN_ERR "bridge: can't register sap for STP\n"); 38 return err; 39 } 40 41 err = br_fdb_init(); 42 if (err) 43 goto err_out; 44 45 err = br_netfilter_init(); 46 if (err) 47 goto err_out1; 48 49 err = register_netdevice_notifier(&br_device_notifier); 50 if (err) 51 goto err_out2; 52 53 err = br_netlink_init(); 54 if (err) 55 goto err_out3; 56 57 brioctl_set(br_ioctl_deviceless_stub); 58 br_handle_frame_hook = br_handle_frame; 59 60 br_fdb_get_hook = br_fdb_get; 61 br_fdb_put_hook = br_fdb_put; 62 63 return 0; 64 err_out3: 65 unregister_netdevice_notifier(&br_device_notifier); 66 err_out2: 67 br_netfilter_fini(); 68 err_out1: 69 br_fdb_fini(); 70 err_out: 71 stp_proto_unregister(&br_stp_proto); 72 return err; 73 } 74 75 static void __exit br_deinit(void) 76 { 77 stp_proto_unregister(&br_stp_proto); 78 79 br_netlink_fini(); 80 unregister_netdevice_notifier(&br_device_notifier); 81 brioctl_set(NULL); 82 83 br_cleanup_bridges(); 84 85 synchronize_net(); 86 87 br_netfilter_fini(); 88 br_fdb_get_hook = NULL; 89 br_fdb_put_hook = NULL; 90 91 br_handle_frame_hook = NULL; 92 br_fdb_fini(); 93 } 94 95 EXPORT_SYMBOL(br_should_route_hook); 96 97 module_init(br_init) 98 module_exit(br_deinit) 99 MODULE_LICENSE("GPL"); 100 MODULE_VERSION(BR_VERSION); 101