| /* |
| * Copyright (C) 2007-2011 B.A.T.M.A.N. contributors: |
| * |
| * Marek Lindner, Simon Wunderlich |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of version 2 of the GNU General Public |
| * License as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301, USA |
| * |
| */ |
| |
| #include "main.h" |
| #include "bat_sysfs.h" |
| #include "bat_debugfs.h" |
| #include "routing.h" |
| #include "send.h" |
| #include "originator.h" |
| #include "soft-interface.h" |
| #include "icmp_socket.h" |
| #include "translation-table.h" |
| #include "hard-interface.h" |
| #include "gateway_client.h" |
| #include "vis.h" |
| #include "hash.h" |
| |
| |
| /* List manipulations on hardif_list have to be rtnl_lock()'ed, |
| * list traversals just rcu-locked */ |
| struct list_head hardif_list; |
| |
| unsigned char broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| |
| struct workqueue_struct *bat_event_workqueue; |
| |
| static int __init batman_init(void) |
| { |
| INIT_LIST_HEAD(&hardif_list); |
| |
| /* the name should not be longer than 10 chars - see |
| * http://lwn.net/Articles/23634/ */ |
| bat_event_workqueue = create_singlethread_workqueue("bat_events"); |
| |
| if (!bat_event_workqueue) |
| return -ENOMEM; |
| |
| bat_socket_init(); |
| debugfs_init(); |
| |
| register_netdevice_notifier(&hard_if_notifier); |
| |
| pr_info("B.A.T.M.A.N. advanced %s%s (compatibility version %i) " |
| "loaded\n", SOURCE_VERSION, REVISION_VERSION_STR, |
| COMPAT_VERSION); |
| |
| return 0; |
| } |
| |
| static void __exit batman_exit(void) |
| { |
| debugfs_destroy(); |
| unregister_netdevice_notifier(&hard_if_notifier); |
| hardif_remove_interfaces(); |
| |
| flush_workqueue(bat_event_workqueue); |
| destroy_workqueue(bat_event_workqueue); |
| bat_event_workqueue = NULL; |
| |
| rcu_barrier(); |
| } |
| |
| int mesh_init(struct net_device *soft_iface) |
| { |
| struct bat_priv *bat_priv = netdev_priv(soft_iface); |
| |
| spin_lock_init(&bat_priv->forw_bat_list_lock); |
| spin_lock_init(&bat_priv->forw_bcast_list_lock); |
| spin_lock_init(&bat_priv->hna_lhash_lock); |
| spin_lock_init(&bat_priv->hna_ghash_lock); |
| spin_lock_init(&bat_priv->gw_list_lock); |
| spin_lock_init(&bat_priv->vis_hash_lock); |
| spin_lock_init(&bat_priv->vis_list_lock); |
| spin_lock_init(&bat_priv->softif_neigh_lock); |
| spin_lock_init(&bat_priv->softif_neigh_vid_lock); |
| |
| INIT_HLIST_HEAD(&bat_priv->forw_bat_list); |
| INIT_HLIST_HEAD(&bat_priv->forw_bcast_list); |
| INIT_HLIST_HEAD(&bat_priv->gw_list); |
| INIT_HLIST_HEAD(&bat_priv->softif_neigh_vids); |
| |
| if (originator_init(bat_priv) < 1) |
| goto err; |
| |
| if (hna_local_init(bat_priv) < 1) |
| goto err; |
| |
| if (hna_global_init(bat_priv) < 1) |
| goto err; |
| |
| hna_local_add(soft_iface, soft_iface->dev_addr); |
| |
| if (vis_init(bat_priv) < 1) |
| goto err; |
| |
| atomic_set(&bat_priv->mesh_state, MESH_ACTIVE); |
| goto end; |
| |
| err: |
| pr_err("Unable to allocate memory for mesh information structures: " |
| "out of mem ?\n"); |
| mesh_free(soft_iface); |
| return -1; |
| |
| end: |
| return 0; |
| } |
| |
| void mesh_free(struct net_device *soft_iface) |
| { |
| struct bat_priv *bat_priv = netdev_priv(soft_iface); |
| |
| atomic_set(&bat_priv->mesh_state, MESH_DEACTIVATING); |
| |
| purge_outstanding_packets(bat_priv, NULL); |
| |
| vis_quit(bat_priv); |
| |
| gw_node_purge(bat_priv); |
| originator_free(bat_priv); |
| |
| hna_local_free(bat_priv); |
| hna_global_free(bat_priv); |
| |
| softif_neigh_purge(bat_priv); |
| |
| atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); |
| } |
| |
| void inc_module_count(void) |
| { |
| try_module_get(THIS_MODULE); |
| } |
| |
| void dec_module_count(void) |
| { |
| module_put(THIS_MODULE); |
| } |
| |
| int is_my_mac(uint8_t *addr) |
| { |
| struct hard_iface *hard_iface; |
| |
| rcu_read_lock(); |
| list_for_each_entry_rcu(hard_iface, &hardif_list, list) { |
| if (hard_iface->if_status != IF_ACTIVE) |
| continue; |
| |
| if (compare_eth(hard_iface->net_dev->dev_addr, addr)) { |
| rcu_read_unlock(); |
| return 1; |
| } |
| } |
| rcu_read_unlock(); |
| return 0; |
| |
| } |
| |
| module_init(batman_init); |
| module_exit(batman_exit); |
| |
| MODULE_LICENSE("GPL"); |
| |
| MODULE_AUTHOR(DRIVER_AUTHOR); |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_SUPPORTED_DEVICE(DRIVER_DEVICE); |
| #ifdef REVISION_VERSION |
| MODULE_VERSION(SOURCE_VERSION "-" REVISION_VERSION); |
| #else |
| MODULE_VERSION(SOURCE_VERSION); |
| #endif |