diff options
Diffstat (limited to 'drivers/staging/batman-adv/main.c')
| -rw-r--r-- | drivers/staging/batman-adv/main.c | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/drivers/staging/batman-adv/main.c b/drivers/staging/batman-adv/main.c deleted file mode 100644 index bb89bfc5dda..00000000000 --- a/drivers/staging/batman-adv/main.c +++ /dev/null @@ -1,286 +0,0 @@ -/* - * Copyright (C) 2007-2009 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 "proc.h" -#include "log.h" -#include "routing.h" -#include "send.h" -#include "soft-interface.h" -#include "device.h" -#include "translation-table.h" -#include "hard-interface.h" -#include "types.h" -#include "vis.h" -#include "hash.h" -#include "compat.h" - -struct list_head if_list; -struct hlist_head forw_bat_list; -struct hlist_head forw_bcast_list; -struct hashtable_t *orig_hash; - -DEFINE_SPINLOCK(orig_hash_lock); -DEFINE_SPINLOCK(forw_bat_list_lock); -DEFINE_SPINLOCK(forw_bcast_list_lock); - -atomic_t originator_interval; -atomic_t vis_interval; -atomic_t aggregation_enabled; -int16_t num_hna; -int16_t num_ifs; - -struct net_device *soft_device; - -static struct task_struct *kthread_task; - -unsigned char broadcastAddr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; -atomic_t module_state; - -struct workqueue_struct *bat_event_workqueue; - -int init_module(void) -{ - int retval; - - INIT_LIST_HEAD(&if_list); - INIT_HLIST_HEAD(&forw_bat_list); - INIT_HLIST_HEAD(&forw_bcast_list); - - atomic_set(&module_state, MODULE_INACTIVE); - - atomic_set(&originator_interval, 1000); - atomic_set(&vis_interval, 1000);/* TODO: raise this later, this is only - * for debugging now. */ - atomic_set(&aggregation_enabled, 1); - - /* 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; - - retval = setup_procfs(); - if (retval < 0) - return retval; - - bat_device_init(); - - /* initialize layer 2 interface */ - soft_device = alloc_netdev(sizeof(struct bat_priv) , "bat%d", - interface_setup); - - if (!soft_device) { - debug_log(LOG_TYPE_CRIT, "Unable to allocate the batman interface\n"); - goto end; - } - - retval = register_netdev(soft_device); - - if (retval < 0) { - debug_log(LOG_TYPE_CRIT, "Unable to register the batman interface: %i\n", retval); - goto free_soft_device; - } - - register_netdevice_notifier(&hard_if_notifier); - - debug_log(LOG_TYPE_CRIT, "B.A.T.M.A.N. advanced %s%s (compatibility version %i) loaded \n", - SOURCE_VERSION, REVISION_VERSION_STR, COMPAT_VERSION); - - return 0; - -free_soft_device: - free_netdev(soft_device); - soft_device = NULL; -end: - return -ENOMEM; -} - -void cleanup_module(void) -{ - shutdown_module(); - - if (soft_device) { - unregister_netdev(soft_device); - soft_device = NULL; - } - - unregister_netdevice_notifier(&hard_if_notifier); - cleanup_procfs(); - - destroy_workqueue(bat_event_workqueue); - bat_event_workqueue = NULL; -} - -/* activates the module, creates bat device, starts timer ... */ -void activate_module(void) -{ - if (originator_init() < 1) - goto err; - - if (hna_local_init() < 1) - goto err; - - if (hna_global_init() < 1) - goto err; - - hna_local_add(soft_device->dev_addr); - - if (bat_device_setup() < 1) - goto end; - - if (vis_init() < 1) - goto err; - - /* (re)start kernel thread for packet processing */ - if (!kthread_task) { - kthread_task = kthread_run(packet_recv_thread, NULL, "batman-adv"); - - if (IS_ERR(kthread_task)) { - debug_log(LOG_TYPE_CRIT, "Unable to start packet receive thread\n"); - kthread_task = NULL; - } - } - - update_min_mtu(); - atomic_set(&module_state, MODULE_ACTIVE); - goto end; - -err: - debug_log(LOG_TYPE_CRIT, "Unable to allocate memory for mesh information structures: out of mem ?\n"); - shutdown_module(); -end: - return; -} - -/* shuts down the whole module.*/ -void shutdown_module(void) -{ - atomic_set(&module_state, MODULE_DEACTIVATING); - - purge_outstanding_packets(); - flush_workqueue(bat_event_workqueue); - - vis_quit(); - - /* deactivate kernel thread for packet processing (if running) */ - if (kthread_task) { - atomic_set(&exit_cond, 1); - wake_up_interruptible(&thread_wait); - kthread_stop(kthread_task); - - kthread_task = NULL; - } - - originator_free(); - - hna_local_free(); - hna_global_free(); - - synchronize_net(); - bat_device_destroy(); - - hardif_remove_interfaces(); - synchronize_rcu(); - atomic_set(&module_state, MODULE_INACTIVE); -} - -void inc_module_count(void) -{ - try_module_get(THIS_MODULE); -} - -void dec_module_count(void) -{ - module_put(THIS_MODULE); -} - -int addr_to_string(char *buff, uint8_t *addr) -{ - return sprintf(buff, "%02x:%02x:%02x:%02x:%02x:%02x", - addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); -} - -/* returns 1 if they are the same originator */ - -int compare_orig(void *data1, void *data2) -{ - return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0); -} - -/* hashfunction to choose an entry in a hash table of given size */ -/* hash algorithm from http://en.wikipedia.org/wiki/Hash_table */ -int choose_orig(void *data, int32_t size) -{ - unsigned char *key = data; - uint32_t hash = 0; - size_t i; - - for (i = 0; i < 6; i++) { - hash += key[i]; - hash += (hash << 10); - hash ^= (hash >> 6); - } - - hash += (hash << 3); - hash ^= (hash >> 11); - hash += (hash << 15); - - return hash % size; -} - -int is_my_mac(uint8_t *addr) -{ - struct batman_if *batman_if; - rcu_read_lock(); - list_for_each_entry_rcu(batman_if, &if_list, list) { - if ((batman_if->net_dev) && - (compare_orig(batman_if->net_dev->dev_addr, addr))) { - rcu_read_unlock(); - return 1; - } - } - rcu_read_unlock(); - return 0; - -} - -int is_bcast(uint8_t *addr) -{ - return (addr[0] == (uint8_t)0xff) && (addr[1] == (uint8_t)0xff); -} - -int is_mcast(uint8_t *addr) -{ - return *addr & 0x01; -} - -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 |