Antonio Quartulli | 0b87393 | 2013-01-04 03:05:31 +0100 | [diff] [blame] | 1 | /* Copyright (C) 2009-2013 B.A.T.M.A.N. contributors: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 2 | * |
| 3 | * Marek Lindner, Simon Wunderlich |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of version 2 of the GNU General Public |
| 7 | * License as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 17 | * 02110-1301, USA |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 20 | #include "main.h" |
Antonio Quartulli | 785ea11 | 2011-11-23 11:35:44 +0100 | [diff] [blame] | 21 | #include "distributed-arp-table.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 22 | #include "originator.h" |
| 23 | #include "hash.h" |
| 24 | #include "translation-table.h" |
| 25 | #include "routing.h" |
| 26 | #include "gateway_client.h" |
| 27 | #include "hard-interface.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 28 | #include "soft-interface.h" |
Simon Wunderlich | 2372138 | 2012-01-22 20:00:19 +0100 | [diff] [blame] | 29 | #include "bridge_loop_avoidance.h" |
Martin Hundebøll | d56b170 | 2013-01-25 11:12:39 +0100 | [diff] [blame] | 30 | #include "network-coding.h" |
Martin Hundebøll | 610bfc6bc | 2013-05-23 16:53:02 +0200 | [diff] [blame] | 31 | #include "fragmentation.h" |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 32 | |
Antonio Quartulli | dec0507 | 2012-11-10 11:00:32 +0100 | [diff] [blame] | 33 | /* hash class keys */ |
| 34 | static struct lock_class_key batadv_orig_hash_lock_class_key; |
| 35 | |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 36 | static void batadv_purge_orig(struct work_struct *work); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 37 | |
Sven Eckelmann | b8e2dd1 | 2011-06-15 15:08:59 +0200 | [diff] [blame] | 38 | /* returns 1 if they are the same originator */ |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 39 | static int batadv_compare_orig(const struct hlist_node *node, const void *data2) |
Sven Eckelmann | b8e2dd1 | 2011-06-15 15:08:59 +0200 | [diff] [blame] | 40 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 41 | const void *data1 = container_of(node, struct batadv_orig_node, |
| 42 | hash_entry); |
Sven Eckelmann | b8e2dd1 | 2011-06-15 15:08:59 +0200 | [diff] [blame] | 43 | |
| 44 | return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0); |
| 45 | } |
| 46 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 47 | int batadv_originator_init(struct batadv_priv *bat_priv) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 48 | { |
| 49 | if (bat_priv->orig_hash) |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 50 | return 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 51 | |
Sven Eckelmann | 1a8eaf0 | 2012-05-12 02:09:32 +0200 | [diff] [blame] | 52 | bat_priv->orig_hash = batadv_hash_new(1024); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 53 | |
| 54 | if (!bat_priv->orig_hash) |
| 55 | goto err; |
| 56 | |
Antonio Quartulli | dec0507 | 2012-11-10 11:00:32 +0100 | [diff] [blame] | 57 | batadv_hash_set_lock_class(bat_priv->orig_hash, |
| 58 | &batadv_orig_hash_lock_class_key); |
| 59 | |
Antonio Quartulli | 7241444 | 2012-12-25 13:14:37 +0100 | [diff] [blame] | 60 | INIT_DELAYED_WORK(&bat_priv->orig_work, batadv_purge_orig); |
| 61 | queue_delayed_work(batadv_event_workqueue, |
| 62 | &bat_priv->orig_work, |
| 63 | msecs_to_jiffies(BATADV_ORIG_WORK_PERIOD)); |
| 64 | |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 65 | return 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 66 | |
| 67 | err: |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 68 | return -ENOMEM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 71 | void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node) |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 72 | { |
Marek Lindner | 44524fc | 2011-02-10 14:33:53 +0000 | [diff] [blame] | 73 | if (atomic_dec_and_test(&neigh_node->refcount)) |
Paul E. McKenney | ae179ae | 2011-05-01 23:27:50 -0700 | [diff] [blame] | 74 | kfree_rcu(neigh_node, rcu); |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 75 | } |
| 76 | |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 77 | /* increases the refcounter of a found router */ |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 78 | struct batadv_neigh_node * |
| 79 | batadv_orig_node_get_router(struct batadv_orig_node *orig_node) |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 80 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 81 | struct batadv_neigh_node *router; |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 82 | |
| 83 | rcu_read_lock(); |
| 84 | router = rcu_dereference(orig_node->router); |
| 85 | |
| 86 | if (router && !atomic_inc_not_zero(&router->refcount)) |
| 87 | router = NULL; |
| 88 | |
| 89 | rcu_read_unlock(); |
| 90 | return router; |
| 91 | } |
| 92 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 93 | struct batadv_neigh_node * |
| 94 | batadv_neigh_node_new(struct batadv_hard_iface *hard_iface, |
Antonio Quartulli | 863dd7a | 2013-03-25 13:49:46 +0100 | [diff] [blame] | 95 | const uint8_t *neigh_addr) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 96 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 97 | struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); |
| 98 | struct batadv_neigh_node *neigh_node; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 99 | |
Sven Eckelmann | 704509b | 2011-05-14 23:14:54 +0200 | [diff] [blame] | 100 | neigh_node = kzalloc(sizeof(*neigh_node), GFP_ATOMIC); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 101 | if (!neigh_node) |
Marek Lindner | 7ae8b28 | 2012-03-01 15:35:21 +0800 | [diff] [blame] | 102 | goto out; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 103 | |
Marek Lindner | 9591a79 | 2010-12-12 21:57:11 +0000 | [diff] [blame] | 104 | INIT_HLIST_NODE(&neigh_node->list); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 105 | |
Marek Lindner | 7ae8b28 | 2012-03-01 15:35:21 +0800 | [diff] [blame] | 106 | memcpy(neigh_node->addr, neigh_addr, ETH_ALEN); |
Marek Lindner | e3b0d0d | 2012-03-17 15:28:32 +0800 | [diff] [blame] | 107 | spin_lock_init(&neigh_node->lq_update_lock); |
Marek Lindner | 1605d0d | 2011-02-18 12:28:11 +0000 | [diff] [blame] | 108 | |
| 109 | /* extra reference for return */ |
| 110 | atomic_set(&neigh_node->refcount, 2); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 111 | |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 112 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
Antonio Quartulli | d1dc307 | 2013-03-25 13:54:45 +0100 | [diff] [blame] | 113 | "Creating new neighbor %pM on interface %s\n", neigh_addr, |
| 114 | hard_iface->net_dev->name); |
Marek Lindner | 7ae8b28 | 2012-03-01 15:35:21 +0800 | [diff] [blame] | 115 | |
| 116 | out: |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 117 | return neigh_node; |
| 118 | } |
| 119 | |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 120 | static void batadv_orig_node_free_rcu(struct rcu_head *rcu) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 121 | { |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 122 | struct hlist_node *node_tmp; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 123 | struct batadv_neigh_node *neigh_node, *tmp_neigh_node; |
| 124 | struct batadv_orig_node *orig_node; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 125 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 126 | orig_node = container_of(rcu, struct batadv_orig_node, rcu); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 127 | |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 128 | spin_lock_bh(&orig_node->neigh_list_lock); |
| 129 | |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 130 | /* for all bonding members ... */ |
| 131 | list_for_each_entry_safe(neigh_node, tmp_neigh_node, |
| 132 | &orig_node->bond_list, bonding_list) { |
| 133 | list_del_rcu(&neigh_node->bonding_list); |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 134 | batadv_neigh_node_free_ref(neigh_node); |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 135 | } |
| 136 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 137 | /* for all neighbors towards this originator ... */ |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 138 | hlist_for_each_entry_safe(neigh_node, node_tmp, |
Marek Lindner | 9591a79 | 2010-12-12 21:57:11 +0000 | [diff] [blame] | 139 | &orig_node->neigh_list, list) { |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 140 | hlist_del_rcu(&neigh_node->list); |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 141 | batadv_neigh_node_free_ref(neigh_node); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 142 | } |
| 143 | |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 144 | spin_unlock_bh(&orig_node->neigh_list_lock); |
| 145 | |
Martin Hundebøll | d56b170 | 2013-01-25 11:12:39 +0100 | [diff] [blame] | 146 | /* Free nc_nodes */ |
| 147 | batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL); |
| 148 | |
Martin Hundebøll | 610bfc6bc | 2013-05-23 16:53:02 +0200 | [diff] [blame] | 149 | batadv_frag_purge_orig(orig_node, NULL); |
| 150 | |
Sven Eckelmann | 08c36d3 | 2012-05-12 02:09:39 +0200 | [diff] [blame] | 151 | batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, |
| 152 | "originator timed out"); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 153 | |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 154 | kfree(orig_node->tt_buff); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 155 | kfree(orig_node->bcast_own); |
| 156 | kfree(orig_node->bcast_own_sum); |
| 157 | kfree(orig_node); |
| 158 | } |
| 159 | |
Linus Lüssing | 7282222 | 2013-04-15 21:43:29 +0800 | [diff] [blame] | 160 | /** |
| 161 | * batadv_orig_node_free_ref - decrement the orig node refcounter and possibly |
| 162 | * schedule an rcu callback for freeing it |
| 163 | * @orig_node: the orig node to free |
| 164 | */ |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 165 | void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node) |
Marek Lindner | 7b36e8e | 2011-02-18 12:28:10 +0000 | [diff] [blame] | 166 | { |
| 167 | if (atomic_dec_and_test(&orig_node->refcount)) |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 168 | call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu); |
Marek Lindner | 7b36e8e | 2011-02-18 12:28:10 +0000 | [diff] [blame] | 169 | } |
| 170 | |
Linus Lüssing | 7282222 | 2013-04-15 21:43:29 +0800 | [diff] [blame] | 171 | /** |
| 172 | * batadv_orig_node_free_ref_now - decrement the orig node refcounter and |
| 173 | * possibly free it (without rcu callback) |
| 174 | * @orig_node: the orig node to free |
| 175 | */ |
| 176 | void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node) |
| 177 | { |
| 178 | if (atomic_dec_and_test(&orig_node->refcount)) |
| 179 | batadv_orig_node_free_rcu(&orig_node->rcu); |
| 180 | } |
| 181 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 182 | void batadv_originator_free(struct batadv_priv *bat_priv) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 183 | { |
Sven Eckelmann | 5bf74e9 | 2012-06-05 22:31:28 +0200 | [diff] [blame] | 184 | struct batadv_hashtable *hash = bat_priv->orig_hash; |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 185 | struct hlist_node *node_tmp; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 186 | struct hlist_head *head; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 187 | spinlock_t *list_lock; /* spinlock to protect write access */ |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 188 | struct batadv_orig_node *orig_node; |
Antonio Quartulli | c90681b | 2011-10-05 17:05:25 +0200 | [diff] [blame] | 189 | uint32_t i; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 190 | |
| 191 | if (!hash) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 192 | return; |
| 193 | |
| 194 | cancel_delayed_work_sync(&bat_priv->orig_work); |
| 195 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 196 | bat_priv->orig_hash = NULL; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 197 | |
| 198 | for (i = 0; i < hash->size; i++) { |
| 199 | head = &hash->table[i]; |
| 200 | list_lock = &hash->list_locks[i]; |
| 201 | |
| 202 | spin_lock_bh(list_lock); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 203 | hlist_for_each_entry_safe(orig_node, node_tmp, |
Marek Lindner | 7aadf88 | 2011-02-18 12:28:09 +0000 | [diff] [blame] | 204 | head, hash_entry) { |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 205 | hlist_del_rcu(&orig_node->hash_entry); |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 206 | batadv_orig_node_free_ref(orig_node); |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 207 | } |
| 208 | spin_unlock_bh(list_lock); |
| 209 | } |
| 210 | |
Sven Eckelmann | 1a8eaf0 | 2012-05-12 02:09:32 +0200 | [diff] [blame] | 211 | batadv_hash_destroy(hash); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | /* this function finds or creates an originator entry for the given |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 215 | * address if it does not exits |
| 216 | */ |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 217 | struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv, |
| 218 | const uint8_t *addr) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 219 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 220 | struct batadv_orig_node *orig_node; |
Martin Hundebøll | 610bfc6bc | 2013-05-23 16:53:02 +0200 | [diff] [blame] | 221 | int size, i; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 222 | int hash_added; |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 223 | unsigned long reset_time; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 224 | |
Sven Eckelmann | da64119 | 2012-05-12 13:48:56 +0200 | [diff] [blame] | 225 | orig_node = batadv_orig_hash_find(bat_priv, addr); |
Marek Lindner | 7aadf88 | 2011-02-18 12:28:09 +0000 | [diff] [blame] | 226 | if (orig_node) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 227 | return orig_node; |
| 228 | |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 229 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
| 230 | "Creating new originator: %pM\n", addr); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 231 | |
Sven Eckelmann | 704509b | 2011-05-14 23:14:54 +0200 | [diff] [blame] | 232 | orig_node = kzalloc(sizeof(*orig_node), GFP_ATOMIC); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 233 | if (!orig_node) |
| 234 | return NULL; |
| 235 | |
Marek Lindner | 9591a79 | 2010-12-12 21:57:11 +0000 | [diff] [blame] | 236 | INIT_HLIST_HEAD(&orig_node->neigh_list); |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 237 | INIT_LIST_HEAD(&orig_node->bond_list); |
Marek Lindner | 2ae2daf | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 238 | spin_lock_init(&orig_node->ogm_cnt_lock); |
Marek Lindner | f3e0008 | 2011-01-25 21:52:11 +0000 | [diff] [blame] | 239 | spin_lock_init(&orig_node->bcast_seqno_lock); |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 240 | spin_lock_init(&orig_node->neigh_list_lock); |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 241 | spin_lock_init(&orig_node->tt_buff_lock); |
Antonio Quartulli | a70a9aa | 2013-07-30 22:16:24 +0200 | [diff] [blame^] | 242 | spin_lock_init(&orig_node->tt_lock); |
Marek Lindner | 7b36e8e | 2011-02-18 12:28:10 +0000 | [diff] [blame] | 243 | |
Martin Hundebøll | d56b170 | 2013-01-25 11:12:39 +0100 | [diff] [blame] | 244 | batadv_nc_init_orig(orig_node); |
| 245 | |
Marek Lindner | 7b36e8e | 2011-02-18 12:28:10 +0000 | [diff] [blame] | 246 | /* extra reference for return */ |
| 247 | atomic_set(&orig_node->refcount, 2); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 248 | |
Antonio Quartulli | 1707157 | 2011-11-07 16:36:40 +0100 | [diff] [blame] | 249 | orig_node->tt_initialised = false; |
Marek Lindner | 16b1aba | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 250 | orig_node->bat_priv = bat_priv; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 251 | memcpy(orig_node->orig, addr, ETH_ALEN); |
Antonio Quartulli | 785ea11 | 2011-11-23 11:35:44 +0100 | [diff] [blame] | 252 | batadv_dat_init_orig_node_addr(orig_node); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 253 | orig_node->router = NULL; |
Antonio Quartulli | c8c991b | 2011-07-07 01:40:57 +0200 | [diff] [blame] | 254 | orig_node->tt_crc = 0; |
| 255 | atomic_set(&orig_node->last_ttvn, 0); |
Antonio Quartulli | 2dafb49 | 2011-05-05 08:42:45 +0200 | [diff] [blame] | 256 | orig_node->tt_buff = NULL; |
Antonio Quartulli | a73105b | 2011-04-27 14:27:44 +0200 | [diff] [blame] | 257 | orig_node->tt_buff_len = 0; |
| 258 | atomic_set(&orig_node->tt_size, 0); |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 259 | reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS); |
| 260 | orig_node->bcast_seqno_reset = reset_time; |
| 261 | orig_node->batman_seqno_reset = reset_time; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 262 | |
Simon Wunderlich | a4c135c | 2011-01-19 20:01:43 +0000 | [diff] [blame] | 263 | atomic_set(&orig_node->bond_candidates, 0); |
| 264 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 265 | size = bat_priv->num_ifaces * sizeof(unsigned long) * BATADV_NUM_WORDS; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 266 | |
| 267 | orig_node->bcast_own = kzalloc(size, GFP_ATOMIC); |
| 268 | if (!orig_node->bcast_own) |
| 269 | goto free_orig_node; |
| 270 | |
| 271 | size = bat_priv->num_ifaces * sizeof(uint8_t); |
| 272 | orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC); |
| 273 | |
Martin Hundebøll | 610bfc6bc | 2013-05-23 16:53:02 +0200 | [diff] [blame] | 274 | for (i = 0; i < BATADV_FRAG_BUFFER_COUNT; i++) { |
| 275 | INIT_HLIST_HEAD(&orig_node->fragments[i].head); |
| 276 | spin_lock_init(&orig_node->fragments[i].lock); |
| 277 | orig_node->fragments[i].size = 0; |
| 278 | } |
| 279 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 280 | if (!orig_node->bcast_own_sum) |
| 281 | goto free_bcast_own; |
| 282 | |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 283 | hash_added = batadv_hash_add(bat_priv->orig_hash, batadv_compare_orig, |
Sven Eckelmann | da64119 | 2012-05-12 13:48:56 +0200 | [diff] [blame] | 284 | batadv_choose_orig, orig_node, |
Sven Eckelmann | c0a5592 | 2012-05-12 13:48:55 +0200 | [diff] [blame] | 285 | &orig_node->hash_entry); |
Antonio Quartulli | 1a1f37d | 2011-07-10 00:36:36 +0200 | [diff] [blame] | 286 | if (hash_added != 0) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 287 | goto free_bcast_own_sum; |
| 288 | |
| 289 | return orig_node; |
| 290 | free_bcast_own_sum: |
| 291 | kfree(orig_node->bcast_own_sum); |
| 292 | free_bcast_own: |
| 293 | kfree(orig_node->bcast_own); |
| 294 | free_orig_node: |
| 295 | kfree(orig_node); |
| 296 | return NULL; |
| 297 | } |
| 298 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 299 | static bool |
| 300 | batadv_purge_orig_neighbors(struct batadv_priv *bat_priv, |
| 301 | struct batadv_orig_node *orig_node, |
| 302 | struct batadv_neigh_node **best_neigh_node) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 303 | { |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 304 | struct hlist_node *node_tmp; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 305 | struct batadv_neigh_node *neigh_node; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 306 | bool neigh_purged = false; |
Marek Lindner | 0b0094e | 2012-03-01 15:35:20 +0800 | [diff] [blame] | 307 | unsigned long last_seen; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 308 | struct batadv_hard_iface *if_incoming; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 309 | |
| 310 | *best_neigh_node = NULL; |
| 311 | |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 312 | spin_lock_bh(&orig_node->neigh_list_lock); |
| 313 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 314 | /* for all neighbors towards this originator ... */ |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 315 | hlist_for_each_entry_safe(neigh_node, node_tmp, |
Marek Lindner | 9591a79 | 2010-12-12 21:57:11 +0000 | [diff] [blame] | 316 | &orig_node->neigh_list, list) { |
Sven Eckelmann | 1eda58b | 2012-05-12 13:48:58 +0200 | [diff] [blame] | 317 | last_seen = neigh_node->last_seen; |
| 318 | if_incoming = neigh_node->if_incoming; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 319 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 320 | if ((batadv_has_timed_out(last_seen, BATADV_PURGE_TIMEOUT)) || |
Sven Eckelmann | e9a4f29 | 2012-06-03 22:19:19 +0200 | [diff] [blame] | 321 | (if_incoming->if_status == BATADV_IF_INACTIVE) || |
| 322 | (if_incoming->if_status == BATADV_IF_NOT_IN_USE) || |
| 323 | (if_incoming->if_status == BATADV_IF_TO_BE_REMOVED)) { |
Sven Eckelmann | e9a4f29 | 2012-06-03 22:19:19 +0200 | [diff] [blame] | 324 | if ((if_incoming->if_status == BATADV_IF_INACTIVE) || |
| 325 | (if_incoming->if_status == BATADV_IF_NOT_IN_USE) || |
| 326 | (if_incoming->if_status == BATADV_IF_TO_BE_REMOVED)) |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 327 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
Sven Eckelmann | 1eda58b | 2012-05-12 13:48:58 +0200 | [diff] [blame] | 328 | "neighbor purge: originator %pM, neighbor: %pM, iface: %s\n", |
| 329 | orig_node->orig, neigh_node->addr, |
| 330 | if_incoming->net_dev->name); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 331 | else |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 332 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
Sven Eckelmann | 1eda58b | 2012-05-12 13:48:58 +0200 | [diff] [blame] | 333 | "neighbor timeout: originator %pM, neighbor: %pM, last_seen: %u\n", |
| 334 | orig_node->orig, neigh_node->addr, |
| 335 | jiffies_to_msecs(last_seen)); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 336 | |
| 337 | neigh_purged = true; |
Marek Lindner | 9591a79 | 2010-12-12 21:57:11 +0000 | [diff] [blame] | 338 | |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 339 | hlist_del_rcu(&neigh_node->list); |
Sven Eckelmann | 30d3c51 | 2012-05-12 02:09:36 +0200 | [diff] [blame] | 340 | batadv_bonding_candidate_del(orig_node, neigh_node); |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 341 | batadv_neigh_node_free_ref(neigh_node); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 342 | } else { |
| 343 | if ((!*best_neigh_node) || |
| 344 | (neigh_node->tq_avg > (*best_neigh_node)->tq_avg)) |
| 345 | *best_neigh_node = neigh_node; |
| 346 | } |
| 347 | } |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 348 | |
| 349 | spin_unlock_bh(&orig_node->neigh_list_lock); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 350 | return neigh_purged; |
| 351 | } |
| 352 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 353 | static bool batadv_purge_orig_node(struct batadv_priv *bat_priv, |
| 354 | struct batadv_orig_node *orig_node) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 355 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 356 | struct batadv_neigh_node *best_neigh_node; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 357 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 358 | if (batadv_has_timed_out(orig_node->last_seen, |
| 359 | 2 * BATADV_PURGE_TIMEOUT)) { |
Sven Eckelmann | 39c75a5 | 2012-06-03 22:19:22 +0200 | [diff] [blame] | 360 | batadv_dbg(BATADV_DBG_BATMAN, bat_priv, |
Sven Eckelmann | 1eda58b | 2012-05-12 13:48:58 +0200 | [diff] [blame] | 361 | "Originator timeout: originator %pM, last_seen %u\n", |
| 362 | orig_node->orig, |
| 363 | jiffies_to_msecs(orig_node->last_seen)); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 364 | return true; |
| 365 | } else { |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 366 | if (batadv_purge_orig_neighbors(bat_priv, orig_node, |
| 367 | &best_neigh_node)) |
Sven Eckelmann | 30d3c51 | 2012-05-12 02:09:36 +0200 | [diff] [blame] | 368 | batadv_update_route(bat_priv, orig_node, |
| 369 | best_neigh_node); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | return false; |
| 373 | } |
| 374 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 375 | static void _batadv_purge_orig(struct batadv_priv *bat_priv) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 376 | { |
Sven Eckelmann | 5bf74e9 | 2012-06-05 22:31:28 +0200 | [diff] [blame] | 377 | struct batadv_hashtable *hash = bat_priv->orig_hash; |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 378 | struct hlist_node *node_tmp; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 379 | struct hlist_head *head; |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 380 | spinlock_t *list_lock; /* spinlock to protect write access */ |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 381 | struct batadv_orig_node *orig_node; |
Antonio Quartulli | c90681b | 2011-10-05 17:05:25 +0200 | [diff] [blame] | 382 | uint32_t i; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 383 | |
| 384 | if (!hash) |
| 385 | return; |
| 386 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 387 | /* for all origins... */ |
| 388 | for (i = 0; i < hash->size; i++) { |
| 389 | head = &hash->table[i]; |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 390 | list_lock = &hash->list_locks[i]; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 391 | |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 392 | spin_lock_bh(list_lock); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 393 | hlist_for_each_entry_safe(orig_node, node_tmp, |
Marek Lindner | 7aadf88 | 2011-02-18 12:28:09 +0000 | [diff] [blame] | 394 | head, hash_entry) { |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 395 | if (batadv_purge_orig_node(bat_priv, orig_node)) { |
Marek Lindner | 414254e | 2013-04-23 21:39:58 +0800 | [diff] [blame] | 396 | batadv_gw_node_delete(bat_priv, orig_node); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 397 | hlist_del_rcu(&orig_node->hash_entry); |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 398 | batadv_orig_node_free_ref(orig_node); |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 399 | continue; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 400 | } |
Martin Hundebøll | 610bfc6bc | 2013-05-23 16:53:02 +0200 | [diff] [blame] | 401 | |
| 402 | batadv_frag_purge_orig(orig_node, |
| 403 | batadv_frag_check_entry); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 404 | } |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 405 | spin_unlock_bh(list_lock); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 406 | } |
| 407 | |
Sven Eckelmann | 7cf06bc | 2012-05-12 02:09:29 +0200 | [diff] [blame] | 408 | batadv_gw_node_purge(bat_priv); |
| 409 | batadv_gw_election(bat_priv); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 410 | } |
| 411 | |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 412 | static void batadv_purge_orig(struct work_struct *work) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 413 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 414 | struct delayed_work *delayed_work; |
| 415 | struct batadv_priv *bat_priv; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 416 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 417 | delayed_work = container_of(work, struct delayed_work, work); |
| 418 | bat_priv = container_of(delayed_work, struct batadv_priv, orig_work); |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 419 | _batadv_purge_orig(bat_priv); |
Antonio Quartulli | 7241444 | 2012-12-25 13:14:37 +0100 | [diff] [blame] | 420 | queue_delayed_work(batadv_event_workqueue, |
| 421 | &bat_priv->orig_work, |
| 422 | msecs_to_jiffies(BATADV_ORIG_WORK_PERIOD)); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 423 | } |
| 424 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 425 | void batadv_purge_orig_ref(struct batadv_priv *bat_priv) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 426 | { |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 427 | _batadv_purge_orig(bat_priv); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 428 | } |
| 429 | |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 430 | int batadv_orig_seq_print_text(struct seq_file *seq, void *offset) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 431 | { |
| 432 | struct net_device *net_dev = (struct net_device *)seq->private; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 433 | struct batadv_priv *bat_priv = netdev_priv(net_dev); |
Sven Eckelmann | 5bf74e9 | 2012-06-05 22:31:28 +0200 | [diff] [blame] | 434 | struct batadv_hashtable *hash = bat_priv->orig_hash; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 435 | struct hlist_head *head; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 436 | struct batadv_hard_iface *primary_if; |
| 437 | struct batadv_orig_node *orig_node; |
| 438 | struct batadv_neigh_node *neigh_node, *neigh_node_tmp; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 439 | int batman_count = 0; |
| 440 | int last_seen_secs; |
| 441 | int last_seen_msecs; |
Sven Eckelmann | 0aca236 | 2012-06-19 20:26:30 +0200 | [diff] [blame] | 442 | unsigned long last_seen_jiffies; |
Antonio Quartulli | c90681b | 2011-10-05 17:05:25 +0200 | [diff] [blame] | 443 | uint32_t i; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 444 | |
Marek Lindner | 30da63a | 2012-08-03 17:15:46 +0200 | [diff] [blame] | 445 | primary_if = batadv_seq_print_text_primary_if_get(seq); |
| 446 | if (!primary_if) |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 447 | goto out; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 448 | |
Sven Eckelmann | 44c4349 | 2011-07-05 10:42:51 +0200 | [diff] [blame] | 449 | seq_printf(seq, "[B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n", |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 450 | BATADV_SOURCE_VERSION, primary_if->net_dev->name, |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 451 | primary_if->net_dev->dev_addr, net_dev->name); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 452 | seq_printf(seq, " %-15s %s (%s/%i) %17s [%10s]: %20s ...\n", |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 453 | "Originator", "last-seen", "#", BATADV_TQ_MAX_VALUE, |
| 454 | "Nexthop", "outgoingIF", "Potential nexthops"); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 455 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 456 | for (i = 0; i < hash->size; i++) { |
| 457 | head = &hash->table[i]; |
| 458 | |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 459 | rcu_read_lock(); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 460 | hlist_for_each_entry_rcu(orig_node, head, hash_entry) { |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 461 | neigh_node = batadv_orig_node_get_router(orig_node); |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 462 | if (!neigh_node) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 463 | continue; |
| 464 | |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 465 | if (neigh_node->tq_avg == 0) |
| 466 | goto next; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 467 | |
Sven Eckelmann | 0aca236 | 2012-06-19 20:26:30 +0200 | [diff] [blame] | 468 | last_seen_jiffies = jiffies - orig_node->last_seen; |
| 469 | last_seen_msecs = jiffies_to_msecs(last_seen_jiffies); |
| 470 | last_seen_secs = last_seen_msecs / 1000; |
| 471 | last_seen_msecs = last_seen_msecs % 1000; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 472 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 473 | seq_printf(seq, "%pM %4i.%03is (%3i) %pM [%10s]:", |
| 474 | orig_node->orig, last_seen_secs, |
| 475 | last_seen_msecs, neigh_node->tq_avg, |
| 476 | neigh_node->addr, |
| 477 | neigh_node->if_incoming->net_dev->name); |
| 478 | |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 479 | hlist_for_each_entry_rcu(neigh_node_tmp, |
Marek Lindner | f987ed6 | 2010-12-12 21:57:12 +0000 | [diff] [blame] | 480 | &orig_node->neigh_list, list) { |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 481 | seq_printf(seq, " %pM (%3i)", |
| 482 | neigh_node_tmp->addr, |
| 483 | neigh_node_tmp->tq_avg); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 484 | } |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 485 | |
Antonio Quartulli | 0c81465 | 2013-03-21 09:23:29 +0100 | [diff] [blame] | 486 | seq_puts(seq, "\n"); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 487 | batman_count++; |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 488 | |
| 489 | next: |
Sven Eckelmann | 7d211ef | 2012-05-12 02:09:34 +0200 | [diff] [blame] | 490 | batadv_neigh_node_free_ref(neigh_node); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 491 | } |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 492 | rcu_read_unlock(); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 493 | } |
| 494 | |
Linus Lüssing | e1a5382f | 2011-03-14 22:43:37 +0000 | [diff] [blame] | 495 | if (batman_count == 0) |
Antonio Quartulli | 0c81465 | 2013-03-21 09:23:29 +0100 | [diff] [blame] | 496 | seq_puts(seq, "No batman nodes in range ...\n"); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 497 | |
Marek Lindner | 32ae9b2 | 2011-04-20 15:40:58 +0200 | [diff] [blame] | 498 | out: |
| 499 | if (primary_if) |
Sven Eckelmann | e5d8925 | 2012-05-12 13:48:54 +0200 | [diff] [blame] | 500 | batadv_hardif_free_ref(primary_if); |
Marek Lindner | 30da63a | 2012-08-03 17:15:46 +0200 | [diff] [blame] | 501 | return 0; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 502 | } |
| 503 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 504 | static int batadv_orig_node_add_if(struct batadv_orig_node *orig_node, |
| 505 | int max_if_num) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 506 | { |
| 507 | void *data_ptr; |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 508 | size_t data_size, old_size; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 509 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 510 | data_size = max_if_num * sizeof(unsigned long) * BATADV_NUM_WORDS; |
| 511 | old_size = (max_if_num - 1) * sizeof(unsigned long) * BATADV_NUM_WORDS; |
| 512 | data_ptr = kmalloc(data_size, GFP_ATOMIC); |
Joe Perches | 320f422 | 2011-08-29 14:17:24 -0700 | [diff] [blame] | 513 | if (!data_ptr) |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 514 | return -ENOMEM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 515 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 516 | memcpy(data_ptr, orig_node->bcast_own, old_size); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 517 | kfree(orig_node->bcast_own); |
| 518 | orig_node->bcast_own = data_ptr; |
| 519 | |
| 520 | data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC); |
Joe Perches | 320f422 | 2011-08-29 14:17:24 -0700 | [diff] [blame] | 521 | if (!data_ptr) |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 522 | return -ENOMEM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 523 | |
| 524 | memcpy(data_ptr, orig_node->bcast_own_sum, |
| 525 | (max_if_num - 1) * sizeof(uint8_t)); |
| 526 | kfree(orig_node->bcast_own_sum); |
| 527 | orig_node->bcast_own_sum = data_ptr; |
| 528 | |
| 529 | return 0; |
| 530 | } |
| 531 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 532 | int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface, |
| 533 | int max_if_num) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 534 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 535 | struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); |
Sven Eckelmann | 5bf74e9 | 2012-06-05 22:31:28 +0200 | [diff] [blame] | 536 | struct batadv_hashtable *hash = bat_priv->orig_hash; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 537 | struct hlist_head *head; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 538 | struct batadv_orig_node *orig_node; |
Antonio Quartulli | c90681b | 2011-10-05 17:05:25 +0200 | [diff] [blame] | 539 | uint32_t i; |
| 540 | int ret; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 541 | |
| 542 | /* resize all orig nodes because orig_node->bcast_own(_sum) depend on |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 543 | * if_num |
| 544 | */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 545 | for (i = 0; i < hash->size; i++) { |
| 546 | head = &hash->table[i]; |
| 547 | |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 548 | rcu_read_lock(); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 549 | hlist_for_each_entry_rcu(orig_node, head, hash_entry) { |
Marek Lindner | 2ae2daf | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 550 | spin_lock_bh(&orig_node->ogm_cnt_lock); |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 551 | ret = batadv_orig_node_add_if(orig_node, max_if_num); |
Marek Lindner | 2ae2daf | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 552 | spin_unlock_bh(&orig_node->ogm_cnt_lock); |
| 553 | |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 554 | if (ret == -ENOMEM) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 555 | goto err; |
| 556 | } |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 557 | rcu_read_unlock(); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 558 | } |
| 559 | |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 560 | return 0; |
| 561 | |
| 562 | err: |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 563 | rcu_read_unlock(); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 564 | return -ENOMEM; |
| 565 | } |
| 566 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 567 | static int batadv_orig_node_del_if(struct batadv_orig_node *orig_node, |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 568 | int max_if_num, int del_if_num) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 569 | { |
| 570 | void *data_ptr = NULL; |
| 571 | int chunk_size; |
| 572 | |
| 573 | /* last interface was removed */ |
| 574 | if (max_if_num == 0) |
| 575 | goto free_bcast_own; |
| 576 | |
Sven Eckelmann | 42d0b04 | 2012-06-03 22:19:17 +0200 | [diff] [blame] | 577 | chunk_size = sizeof(unsigned long) * BATADV_NUM_WORDS; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 578 | data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC); |
Joe Perches | 320f422 | 2011-08-29 14:17:24 -0700 | [diff] [blame] | 579 | if (!data_ptr) |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 580 | return -ENOMEM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 581 | |
| 582 | /* copy first part */ |
| 583 | memcpy(data_ptr, orig_node->bcast_own, del_if_num * chunk_size); |
| 584 | |
| 585 | /* copy second part */ |
Sven Eckelmann | 38e3c5f | 2011-05-14 23:14:49 +0200 | [diff] [blame] | 586 | memcpy((char *)data_ptr + del_if_num * chunk_size, |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 587 | orig_node->bcast_own + ((del_if_num + 1) * chunk_size), |
| 588 | (max_if_num - del_if_num) * chunk_size); |
| 589 | |
| 590 | free_bcast_own: |
| 591 | kfree(orig_node->bcast_own); |
| 592 | orig_node->bcast_own = data_ptr; |
| 593 | |
| 594 | if (max_if_num == 0) |
| 595 | goto free_own_sum; |
| 596 | |
| 597 | data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC); |
Joe Perches | 320f422 | 2011-08-29 14:17:24 -0700 | [diff] [blame] | 598 | if (!data_ptr) |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 599 | return -ENOMEM; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 600 | |
| 601 | memcpy(data_ptr, orig_node->bcast_own_sum, |
| 602 | del_if_num * sizeof(uint8_t)); |
| 603 | |
Sven Eckelmann | 38e3c5f | 2011-05-14 23:14:49 +0200 | [diff] [blame] | 604 | memcpy((char *)data_ptr + del_if_num * sizeof(uint8_t), |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 605 | orig_node->bcast_own_sum + ((del_if_num + 1) * sizeof(uint8_t)), |
| 606 | (max_if_num - del_if_num) * sizeof(uint8_t)); |
| 607 | |
| 608 | free_own_sum: |
| 609 | kfree(orig_node->bcast_own_sum); |
| 610 | orig_node->bcast_own_sum = data_ptr; |
| 611 | |
| 612 | return 0; |
| 613 | } |
| 614 | |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 615 | int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface, |
| 616 | int max_if_num) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 617 | { |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 618 | struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); |
Sven Eckelmann | 5bf74e9 | 2012-06-05 22:31:28 +0200 | [diff] [blame] | 619 | struct batadv_hashtable *hash = bat_priv->orig_hash; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 620 | struct hlist_head *head; |
Sven Eckelmann | 56303d3 | 2012-06-05 22:31:31 +0200 | [diff] [blame] | 621 | struct batadv_hard_iface *hard_iface_tmp; |
| 622 | struct batadv_orig_node *orig_node; |
Antonio Quartulli | c90681b | 2011-10-05 17:05:25 +0200 | [diff] [blame] | 623 | uint32_t i; |
| 624 | int ret; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 625 | |
| 626 | /* resize all orig nodes because orig_node->bcast_own(_sum) depend on |
Sven Eckelmann | 9cfc7bd | 2012-05-12 02:09:43 +0200 | [diff] [blame] | 627 | * if_num |
| 628 | */ |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 629 | for (i = 0; i < hash->size; i++) { |
| 630 | head = &hash->table[i]; |
| 631 | |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 632 | rcu_read_lock(); |
Sasha Levin | b67bfe0 | 2013-02-27 17:06:00 -0800 | [diff] [blame] | 633 | hlist_for_each_entry_rcu(orig_node, head, hash_entry) { |
Marek Lindner | 2ae2daf | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 634 | spin_lock_bh(&orig_node->ogm_cnt_lock); |
Sven Eckelmann | 03fc7f8 | 2012-05-12 18:34:00 +0200 | [diff] [blame] | 635 | ret = batadv_orig_node_del_if(orig_node, max_if_num, |
| 636 | hard_iface->if_num); |
Marek Lindner | 2ae2daf | 2011-01-19 20:01:42 +0000 | [diff] [blame] | 637 | spin_unlock_bh(&orig_node->ogm_cnt_lock); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 638 | |
Sven Eckelmann | 5346c35 | 2012-05-05 13:27:28 +0200 | [diff] [blame] | 639 | if (ret == -ENOMEM) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 640 | goto err; |
| 641 | } |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 642 | rcu_read_unlock(); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 643 | } |
| 644 | |
| 645 | /* renumber remaining batman interfaces _inside_ of orig_hash_lock */ |
| 646 | rcu_read_lock(); |
Sven Eckelmann | 3193e8f | 2012-05-12 02:09:42 +0200 | [diff] [blame] | 647 | list_for_each_entry_rcu(hard_iface_tmp, &batadv_hardif_list, list) { |
Sven Eckelmann | e9a4f29 | 2012-06-03 22:19:19 +0200 | [diff] [blame] | 648 | if (hard_iface_tmp->if_status == BATADV_IF_NOT_IN_USE) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 649 | continue; |
| 650 | |
Marek Lindner | e6c10f4 | 2011-02-18 12:33:20 +0000 | [diff] [blame] | 651 | if (hard_iface == hard_iface_tmp) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 652 | continue; |
| 653 | |
Marek Lindner | e6c10f4 | 2011-02-18 12:33:20 +0000 | [diff] [blame] | 654 | if (hard_iface->soft_iface != hard_iface_tmp->soft_iface) |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 655 | continue; |
| 656 | |
Marek Lindner | e6c10f4 | 2011-02-18 12:33:20 +0000 | [diff] [blame] | 657 | if (hard_iface_tmp->if_num > hard_iface->if_num) |
| 658 | hard_iface_tmp->if_num--; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 659 | } |
| 660 | rcu_read_unlock(); |
| 661 | |
Marek Lindner | e6c10f4 | 2011-02-18 12:33:20 +0000 | [diff] [blame] | 662 | hard_iface->if_num = -1; |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 663 | return 0; |
| 664 | |
| 665 | err: |
Marek Lindner | fb778ea | 2011-01-19 20:01:40 +0000 | [diff] [blame] | 666 | rcu_read_unlock(); |
Sven Eckelmann | c6c8fea | 2010-12-13 11:19:28 +0000 | [diff] [blame] | 667 | return -ENOMEM; |
| 668 | } |