Commit | Line | Data |
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5beef3c9 | 1 | /* |
9b6d10b7 | 2 | * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors: |
5beef3c9 AL |
3 | * |
4 | * Marek Lindner, Simon Wunderlich | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of version 2 of the GNU General Public | |
8 | * License as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
18 | * 02110-1301, USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include "main.h" | |
47fdf097 | 23 | #include "bat_sysfs.h" |
c4121432 | 24 | #include "bat_debugfs.h" |
5beef3c9 AL |
25 | #include "routing.h" |
26 | #include "send.h" | |
8a2e042c | 27 | #include "originator.h" |
5beef3c9 | 28 | #include "soft-interface.h" |
c4121432 | 29 | #include "icmp_socket.h" |
5beef3c9 AL |
30 | #include "translation-table.h" |
31 | #include "hard-interface.h" | |
dfaf9dd3 | 32 | #include "gateway_client.h" |
5beef3c9 AL |
33 | #include "types.h" |
34 | #include "vis.h" | |
35 | #include "hash.h" | |
5beef3c9 AL |
36 | |
37 | struct list_head if_list; | |
5beef3c9 | 38 | |
6e0e9388 | 39 | unsigned char broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
5beef3c9 AL |
40 | |
41 | struct workqueue_struct *bat_event_workqueue; | |
42 | ||
c0cad1e7 | 43 | static int __init batman_init(void) |
5beef3c9 | 44 | { |
5beef3c9 | 45 | INIT_LIST_HEAD(&if_list); |
5beef3c9 | 46 | |
5beef3c9 AL |
47 | /* the name should not be longer than 10 chars - see |
48 | * http://lwn.net/Articles/23634/ */ | |
49 | bat_event_workqueue = create_singlethread_workqueue("bat_events"); | |
50 | ||
51 | if (!bat_event_workqueue) | |
52 | return -ENOMEM; | |
53 | ||
c4121432 SE |
54 | bat_socket_init(); |
55 | debugfs_init(); | |
5beef3c9 | 56 | |
5beef3c9 AL |
57 | register_netdevice_notifier(&hard_if_notifier); |
58 | ||
c1641862 SE |
59 | pr_info("B.A.T.M.A.N. advanced %s%s (compatibility version %i) " |
60 | "loaded\n", SOURCE_VERSION, REVISION_VERSION_STR, | |
61 | COMPAT_VERSION); | |
5beef3c9 AL |
62 | |
63 | return 0; | |
5beef3c9 AL |
64 | } |
65 | ||
c0cad1e7 | 66 | static void __exit batman_exit(void) |
5beef3c9 | 67 | { |
08f20b5e | 68 | debugfs_destroy(); |
208e13e4 ML |
69 | unregister_netdevice_notifier(&hard_if_notifier); |
70 | hardif_remove_interfaces(); | |
5beef3c9 | 71 | |
8c70f138 | 72 | flush_workqueue(bat_event_workqueue); |
5beef3c9 AL |
73 | destroy_workqueue(bat_event_workqueue); |
74 | bat_event_workqueue = NULL; | |
09686b56 | 75 | |
67c3b705 | 76 | rcu_barrier(); |
5beef3c9 AL |
77 | } |
78 | ||
8c70f138 | 79 | int mesh_init(struct net_device *soft_iface) |
5beef3c9 | 80 | { |
8c70f138 ML |
81 | struct bat_priv *bat_priv = netdev_priv(soft_iface); |
82 | ||
83 | spin_lock_init(&bat_priv->orig_hash_lock); | |
84 | spin_lock_init(&bat_priv->forw_bat_list_lock); | |
85 | spin_lock_init(&bat_priv->forw_bcast_list_lock); | |
86 | spin_lock_init(&bat_priv->hna_lhash_lock); | |
87 | spin_lock_init(&bat_priv->hna_ghash_lock); | |
dfaf9dd3 | 88 | spin_lock_init(&bat_priv->gw_list_lock); |
8c70f138 ML |
89 | spin_lock_init(&bat_priv->vis_hash_lock); |
90 | spin_lock_init(&bat_priv->vis_list_lock); | |
42019357 | 91 | spin_lock_init(&bat_priv->softif_neigh_lock); |
8c70f138 ML |
92 | |
93 | INIT_HLIST_HEAD(&bat_priv->forw_bat_list); | |
94 | INIT_HLIST_HEAD(&bat_priv->forw_bcast_list); | |
dfaf9dd3 | 95 | INIT_HLIST_HEAD(&bat_priv->gw_list); |
42019357 | 96 | INIT_HLIST_HEAD(&bat_priv->softif_neigh_list); |
8c70f138 ML |
97 | |
98 | if (originator_init(bat_priv) < 1) | |
5beef3c9 AL |
99 | goto err; |
100 | ||
8c70f138 | 101 | if (hna_local_init(bat_priv) < 1) |
5beef3c9 AL |
102 | goto err; |
103 | ||
8c70f138 | 104 | if (hna_global_init(bat_priv) < 1) |
5beef3c9 AL |
105 | goto err; |
106 | ||
8c70f138 | 107 | hna_local_add(soft_iface, soft_iface->dev_addr); |
5beef3c9 | 108 | |
8c70f138 | 109 | if (vis_init(bat_priv) < 1) |
5beef3c9 AL |
110 | goto err; |
111 | ||
8c70f138 | 112 | atomic_set(&bat_priv->mesh_state, MESH_ACTIVE); |
5beef3c9 AL |
113 | goto end; |
114 | ||
115 | err: | |
c1641862 | 116 | pr_err("Unable to allocate memory for mesh information structures: " |
6d45d8df | 117 | "out of mem ?\n"); |
8c70f138 ML |
118 | mesh_free(soft_iface); |
119 | return -1; | |
120 | ||
5beef3c9 | 121 | end: |
8c70f138 | 122 | return 0; |
5beef3c9 AL |
123 | } |
124 | ||
8c70f138 | 125 | void mesh_free(struct net_device *soft_iface) |
5beef3c9 | 126 | { |
8c70f138 | 127 | struct bat_priv *bat_priv = netdev_priv(soft_iface); |
5beef3c9 | 128 | |
8c70f138 ML |
129 | atomic_set(&bat_priv->mesh_state, MESH_DEACTIVATING); |
130 | ||
131 | purge_outstanding_packets(bat_priv, NULL); | |
5beef3c9 | 132 | |
8c70f138 | 133 | vis_quit(bat_priv); |
5beef3c9 | 134 | |
dfaf9dd3 | 135 | gw_node_purge(bat_priv); |
8c70f138 | 136 | originator_free(bat_priv); |
5beef3c9 | 137 | |
8c70f138 ML |
138 | hna_local_free(bat_priv); |
139 | hna_global_free(bat_priv); | |
5beef3c9 | 140 | |
42019357 ML |
141 | softif_neigh_purge(bat_priv); |
142 | ||
8c70f138 | 143 | atomic_set(&bat_priv->mesh_state, MESH_INACTIVE); |
5beef3c9 AL |
144 | } |
145 | ||
146 | void inc_module_count(void) | |
147 | { | |
148 | try_module_get(THIS_MODULE); | |
149 | } | |
150 | ||
151 | void dec_module_count(void) | |
152 | { | |
153 | module_put(THIS_MODULE); | |
154 | } | |
155 | ||
5beef3c9 AL |
156 | int is_my_mac(uint8_t *addr) |
157 | { | |
158 | struct batman_if *batman_if; | |
51e21ae3 | 159 | |
5beef3c9 AL |
160 | rcu_read_lock(); |
161 | list_for_each_entry_rcu(batman_if, &if_list, list) { | |
51e21ae3 ML |
162 | if (batman_if->if_status != IF_ACTIVE) |
163 | continue; | |
164 | ||
165 | if (compare_orig(batman_if->net_dev->dev_addr, addr)) { | |
5beef3c9 AL |
166 | rcu_read_unlock(); |
167 | return 1; | |
168 | } | |
169 | } | |
170 | rcu_read_unlock(); | |
171 | return 0; | |
172 | ||
173 | } | |
174 | ||
c0cad1e7 RD |
175 | module_init(batman_init); |
176 | module_exit(batman_exit); | |
177 | ||
5beef3c9 AL |
178 | MODULE_LICENSE("GPL"); |
179 | ||
180 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
181 | MODULE_DESCRIPTION(DRIVER_DESC); | |
182 | MODULE_SUPPORTED_DEVICE(DRIVER_DEVICE); | |
183 | #ifdef REVISION_VERSION | |
184 | MODULE_VERSION(SOURCE_VERSION "-" REVISION_VERSION); | |
185 | #else | |
186 | MODULE_VERSION(SOURCE_VERSION); | |
187 | #endif |