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9cfc7bd6 | 1 | /* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
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 | |
c6c8fea2 SE |
18 | */ |
19 | ||
c6c8fea2 SE |
20 | #ifndef _NET_BATMAN_ADV_TYPES_H_ |
21 | #define _NET_BATMAN_ADV_TYPES_H_ | |
22 | ||
23 | #include "packet.h" | |
24 | #include "bitarray.h" | |
c11fdfae | 25 | #include <linux/kernel.h> |
c6c8fea2 | 26 | |
c11fdfae | 27 | #define BATADV_HEADER_LEN \ |
96412690 SE |
28 | (ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \ |
29 | sizeof(struct batadv_bcast_packet))) | |
c6c8fea2 | 30 | |
56303d34 | 31 | struct batadv_hard_iface { |
c6c8fea2 SE |
32 | struct list_head list; |
33 | int16_t if_num; | |
34 | char if_status; | |
35 | struct net_device *net_dev; | |
36 | atomic_t seqno; | |
37 | atomic_t frag_seqno; | |
38 | unsigned char *packet_buff; | |
39 | int packet_len; | |
40 | struct kobject *hardif_obj; | |
ed75ccbe | 41 | atomic_t refcount; |
c6c8fea2 SE |
42 | struct packet_type batman_adv_ptype; |
43 | struct net_device *soft_iface; | |
44 | struct rcu_head rcu; | |
45 | }; | |
46 | ||
2c53040f BH |
47 | /** |
48 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh | |
c6c8fea2 | 49 | * @primary_addr: hosts primary interface address |
d7b2a97e | 50 | * @last_seen: when last packet from this node was received |
c6c8fea2 SE |
51 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
52 | * @batman_seqno_reset: time when the batman seqno window was reset | |
53 | * @gw_flags: flags related to gateway class | |
54 | * @flags: for now only VIS_SERVER flag | |
015758d0 | 55 | * @last_real_seqno: last and best known sequence number |
c6c8fea2 SE |
56 | * @last_ttl: ttl of last received packet |
57 | * @last_bcast_seqno: last broadcast sequence number received by this host | |
58 | * | |
59 | * @candidates: how many candidates are available | |
60 | * @selected: next bonding candidate | |
61 | */ | |
56303d34 | 62 | struct batadv_orig_node { |
c6c8fea2 SE |
63 | uint8_t orig[ETH_ALEN]; |
64 | uint8_t primary_addr[ETH_ALEN]; | |
56303d34 | 65 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ |
c6c8fea2 SE |
66 | unsigned long *bcast_own; |
67 | uint8_t *bcast_own_sum; | |
d7b2a97e | 68 | unsigned long last_seen; |
c6c8fea2 SE |
69 | unsigned long bcast_seqno_reset; |
70 | unsigned long batman_seqno_reset; | |
71 | uint8_t gw_flags; | |
72 | uint8_t flags; | |
a73105b8 AQ |
73 | atomic_t last_ttvn; /* last seen translation table version number */ |
74 | uint16_t tt_crc; | |
2dafb49d AQ |
75 | unsigned char *tt_buff; |
76 | int16_t tt_buff_len; | |
a73105b8 AQ |
77 | spinlock_t tt_buff_lock; /* protects tt_buff */ |
78 | atomic_t tt_size; | |
17071578 | 79 | bool tt_initialised; |
cc47f66e AQ |
80 | /* The tt_poss_change flag is used to detect an ongoing roaming phase. |
81 | * If true, then I sent a Roaming_adv to this orig_node and I have to | |
82 | * inspect every packet directed to it to check whether it is still | |
83 | * the true destination or not. This flag will be reset to false as | |
9cfc7bd6 SE |
84 | * soon as I receive a new TTVN from this orig_node |
85 | */ | |
cc47f66e | 86 | bool tt_poss_change; |
c6c8fea2 SE |
87 | uint32_t last_real_seqno; |
88 | uint8_t last_ttl; | |
42d0b044 | 89 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 90 | uint32_t last_bcast_seqno; |
9591a79f | 91 | struct hlist_head neigh_list; |
c6c8fea2 | 92 | struct list_head frag_list; |
e1a5382f | 93 | spinlock_t neigh_list_lock; /* protects neigh_list and router */ |
7b36e8ee ML |
94 | atomic_t refcount; |
95 | struct rcu_head rcu; | |
7aadf889 | 96 | struct hlist_node hash_entry; |
56303d34 | 97 | struct batadv_priv *bat_priv; |
c6c8fea2 | 98 | unsigned long last_frag_packet; |
6e215fd8 | 99 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, |
9cfc7bd6 SE |
100 | * neigh_node->real_bits, neigh_node->real_packet_count |
101 | */ | |
6e215fd8 SE |
102 | spinlock_t ogm_cnt_lock; |
103 | /* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */ | |
104 | spinlock_t bcast_seqno_lock; | |
a73105b8 | 105 | spinlock_t tt_list_lock; /* protects tt_list */ |
a4c135c5 SW |
106 | atomic_t bond_candidates; |
107 | struct list_head bond_list; | |
c6c8fea2 SE |
108 | }; |
109 | ||
56303d34 | 110 | struct batadv_gw_node { |
c6c8fea2 | 111 | struct hlist_node list; |
56303d34 | 112 | struct batadv_orig_node *orig_node; |
c6c8fea2 | 113 | unsigned long deleted; |
25b6d3c1 | 114 | atomic_t refcount; |
c6c8fea2 SE |
115 | struct rcu_head rcu; |
116 | }; | |
117 | ||
56303d34 | 118 | /* batadv_neigh_node |
d7b2a97e | 119 | * @last_seen: when last packet via this neighbor was received |
c6c8fea2 | 120 | */ |
56303d34 | 121 | struct batadv_neigh_node { |
9591a79f | 122 | struct hlist_node list; |
c6c8fea2 SE |
123 | uint8_t addr[ETH_ALEN]; |
124 | uint8_t real_packet_count; | |
42d0b044 | 125 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
c6c8fea2 SE |
126 | uint8_t tq_index; |
127 | uint8_t tq_avg; | |
128 | uint8_t last_ttl; | |
a4c135c5 | 129 | struct list_head bonding_list; |
d7b2a97e | 130 | unsigned long last_seen; |
42d0b044 | 131 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
44524fcd | 132 | atomic_t refcount; |
f987ed6e | 133 | struct rcu_head rcu; |
56303d34 SE |
134 | struct batadv_orig_node *orig_node; |
135 | struct batadv_hard_iface *if_incoming; | |
e3b0d0de | 136 | spinlock_t lq_update_lock; /* protects: tq_recv, tq_index */ |
c6c8fea2 SE |
137 | }; |
138 | ||
7a5cc242 | 139 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 140 | struct batadv_bcast_duplist_entry { |
fe2da6ff SW |
141 | uint8_t orig[ETH_ALEN]; |
142 | uint16_t crc; | |
143 | unsigned long entrytime; | |
144 | }; | |
7a5cc242 | 145 | #endif |
c6c8fea2 | 146 | |
d69909d2 | 147 | enum batadv_counters { |
1c9b0550 ML |
148 | BATADV_CNT_TX, |
149 | BATADV_CNT_TX_BYTES, | |
150 | BATADV_CNT_TX_DROPPED, | |
151 | BATADV_CNT_RX, | |
152 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
153 | BATADV_CNT_FORWARD, |
154 | BATADV_CNT_FORWARD_BYTES, | |
155 | BATADV_CNT_MGMT_TX, | |
156 | BATADV_CNT_MGMT_TX_BYTES, | |
157 | BATADV_CNT_MGMT_RX, | |
158 | BATADV_CNT_MGMT_RX_BYTES, | |
159 | BATADV_CNT_TT_REQUEST_TX, | |
160 | BATADV_CNT_TT_REQUEST_RX, | |
161 | BATADV_CNT_TT_RESPONSE_TX, | |
162 | BATADV_CNT_TT_RESPONSE_RX, | |
163 | BATADV_CNT_TT_ROAM_ADV_TX, | |
164 | BATADV_CNT_TT_ROAM_ADV_RX, | |
165 | BATADV_CNT_NUM, | |
f8214865 MH |
166 | }; |
167 | ||
807736f6 SE |
168 | /** |
169 | * struct batadv_priv_tt - per mesh interface translation table data | |
170 | * @vn: translation table version number | |
171 | * @local_changes: changes registered in an originator interval | |
172 | * @poss_change: Detect an ongoing roaming phase. If true, then this node | |
173 | * received a roaming_adv and has to inspect every packet directed to it to | |
174 | * check whether it still is the true destination or not. This flag will be | |
175 | * reset to false as soon as the this node's ttvn is increased | |
176 | * @changes_list: tracks tt local changes within an originator interval | |
177 | * @req_list: list of pending tt_requests | |
178 | * @local_crc: Checksum of the local table, recomputed before sending a new OGM | |
179 | */ | |
180 | struct batadv_priv_tt { | |
181 | atomic_t vn; | |
182 | atomic_t ogm_append_cnt; | |
183 | atomic_t local_changes; | |
184 | bool poss_change; | |
185 | struct list_head changes_list; | |
186 | struct batadv_hashtable *local_hash; | |
187 | struct batadv_hashtable *global_hash; | |
188 | struct list_head req_list; | |
189 | struct list_head roam_list; | |
190 | spinlock_t changes_list_lock; /* protects changes */ | |
191 | spinlock_t req_list_lock; /* protects req_list */ | |
192 | spinlock_t roam_list_lock; /* protects roam_list */ | |
193 | atomic_t local_entry_num; | |
194 | uint16_t local_crc; | |
195 | unsigned char *last_changeset; | |
196 | int16_t last_changeset_len; | |
197 | spinlock_t last_changeset_lock; /* protects last_changeset */ | |
198 | struct delayed_work work; | |
199 | }; | |
200 | ||
201 | #ifdef CONFIG_BATMAN_ADV_BLA | |
202 | struct batadv_priv_bla { | |
203 | atomic_t num_requests; /* number of bla requests in flight */ | |
204 | struct batadv_hashtable *claim_hash; | |
205 | struct batadv_hashtable *backbone_hash; | |
206 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
207 | int bcast_duplist_curr; | |
7dac7b76 LL |
208 | /* protects bcast_duplist and bcast_duplist_curr */ |
209 | spinlock_t bcast_duplist_lock; | |
807736f6 SE |
210 | struct batadv_bla_claim_dst claim_dest; |
211 | struct delayed_work work; | |
212 | }; | |
213 | #endif | |
214 | ||
215 | struct batadv_priv_gw { | |
216 | struct hlist_head list; | |
217 | spinlock_t list_lock; /* protects gw_list and curr_gw */ | |
218 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ | |
219 | atomic_t reselect; | |
220 | }; | |
221 | ||
222 | struct batadv_priv_vis { | |
223 | struct list_head send_list; | |
224 | struct batadv_hashtable *hash; | |
225 | spinlock_t hash_lock; /* protects hash */ | |
226 | spinlock_t list_lock; /* protects info::recv_list */ | |
227 | struct delayed_work work; | |
228 | struct batadv_vis_info *my_info; | |
229 | }; | |
230 | ||
56303d34 | 231 | struct batadv_priv { |
c6c8fea2 SE |
232 | atomic_t mesh_state; |
233 | struct net_device_stats stats; | |
f8214865 | 234 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
c6c8fea2 SE |
235 | atomic_t aggregated_ogms; /* boolean */ |
236 | atomic_t bonding; /* boolean */ | |
237 | atomic_t fragmentation; /* boolean */ | |
59b699cd | 238 | atomic_t ap_isolation; /* boolean */ |
23721387 | 239 | atomic_t bridge_loop_avoidance; /* boolean */ |
c6c8fea2 SE |
240 | atomic_t vis_mode; /* VIS_TYPE_* */ |
241 | atomic_t gw_mode; /* GW_MODE_* */ | |
242 | atomic_t gw_sel_class; /* uint */ | |
243 | atomic_t gw_bandwidth; /* gw bandwidth */ | |
244 | atomic_t orig_interval; /* uint */ | |
245 | atomic_t hop_penalty; /* uint */ | |
246 | atomic_t log_level; /* uint */ | |
247 | atomic_t bcast_seqno; | |
248 | atomic_t bcast_queue_left; | |
249 | atomic_t batman_queue_left; | |
250 | char num_ifaces; | |
56303d34 | 251 | struct batadv_debug_log *debug_log; |
c6c8fea2 SE |
252 | struct kobject *mesh_obj; |
253 | struct dentry *debug_dir; | |
254 | struct hlist_head forw_bat_list; | |
255 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 256 | struct batadv_hashtable *orig_hash; |
c6c8fea2 SE |
257 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
258 | spinlock_t forw_bcast_list_lock; /* protects */ | |
c6c8fea2 | 259 | struct delayed_work orig_work; |
56303d34 | 260 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 261 | struct batadv_algo_ops *bat_algo_ops; |
807736f6 SE |
262 | #ifdef CONFIG_BATMAN_ADV_BLA |
263 | struct batadv_priv_bla bla; | |
264 | #endif | |
265 | struct batadv_priv_gw gw; | |
266 | struct batadv_priv_tt tt; | |
267 | struct batadv_priv_vis vis; | |
c6c8fea2 SE |
268 | }; |
269 | ||
56303d34 | 270 | struct batadv_socket_client { |
c6c8fea2 SE |
271 | struct list_head queue_list; |
272 | unsigned int queue_len; | |
273 | unsigned char index; | |
274 | spinlock_t lock; /* protects queue_list, queue_len, index */ | |
275 | wait_queue_head_t queue_wait; | |
56303d34 | 276 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
277 | }; |
278 | ||
56303d34 | 279 | struct batadv_socket_packet { |
c6c8fea2 SE |
280 | struct list_head list; |
281 | size_t icmp_len; | |
96412690 | 282 | struct batadv_icmp_packet_rr icmp_packet; |
c6c8fea2 SE |
283 | }; |
284 | ||
56303d34 | 285 | struct batadv_tt_common_entry { |
c6c8fea2 | 286 | uint8_t addr[ETH_ALEN]; |
93840ac4 | 287 | struct hlist_node hash_entry; |
5fbc1598 | 288 | uint16_t flags; |
30cfd02b | 289 | unsigned long added_at; |
7683fdc1 AQ |
290 | atomic_t refcount; |
291 | struct rcu_head rcu; | |
c6c8fea2 SE |
292 | }; |
293 | ||
56303d34 SE |
294 | struct batadv_tt_local_entry { |
295 | struct batadv_tt_common_entry common; | |
48100bac AQ |
296 | unsigned long last_seen; |
297 | }; | |
298 | ||
56303d34 SE |
299 | struct batadv_tt_global_entry { |
300 | struct batadv_tt_common_entry common; | |
db08e6e5 SW |
301 | struct hlist_head orig_list; |
302 | spinlock_t list_lock; /* protects the list */ | |
303 | unsigned long roam_at; /* time at which TT_GLOBAL_ROAM was set */ | |
304 | }; | |
305 | ||
56303d34 SE |
306 | struct batadv_tt_orig_list_entry { |
307 | struct batadv_orig_node *orig_node; | |
a73105b8 | 308 | uint8_t ttvn; |
d657e621 | 309 | atomic_t refcount; |
db08e6e5 SW |
310 | struct rcu_head rcu; |
311 | struct hlist_node list; | |
c6c8fea2 SE |
312 | }; |
313 | ||
7a5cc242 | 314 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 315 | struct batadv_backbone_gw { |
23721387 SW |
316 | uint8_t orig[ETH_ALEN]; |
317 | short vid; /* used VLAN ID */ | |
318 | struct hlist_node hash_entry; | |
56303d34 | 319 | struct batadv_priv *bat_priv; |
23721387 SW |
320 | unsigned long lasttime; /* last time we heard of this backbone gw */ |
321 | atomic_t request_sent; | |
322 | atomic_t refcount; | |
323 | struct rcu_head rcu; | |
324 | uint16_t crc; /* crc checksum over all claims */ | |
325 | }; | |
326 | ||
56303d34 | 327 | struct batadv_claim { |
23721387 SW |
328 | uint8_t addr[ETH_ALEN]; |
329 | short vid; | |
56303d34 | 330 | struct batadv_backbone_gw *backbone_gw; |
23721387 SW |
331 | unsigned long lasttime; /* last time we heard of claim (locals only) */ |
332 | struct rcu_head rcu; | |
333 | atomic_t refcount; | |
334 | struct hlist_node hash_entry; | |
335 | }; | |
7a5cc242 | 336 | #endif |
23721387 | 337 | |
56303d34 | 338 | struct batadv_tt_change_node { |
a73105b8 | 339 | struct list_head list; |
96412690 | 340 | struct batadv_tt_change change; |
a73105b8 AQ |
341 | }; |
342 | ||
56303d34 | 343 | struct batadv_tt_req_node { |
a73105b8 AQ |
344 | uint8_t addr[ETH_ALEN]; |
345 | unsigned long issued_at; | |
346 | struct list_head list; | |
347 | }; | |
348 | ||
56303d34 | 349 | struct batadv_tt_roam_node { |
cc47f66e AQ |
350 | uint8_t addr[ETH_ALEN]; |
351 | atomic_t counter; | |
352 | unsigned long first_time; | |
353 | struct list_head list; | |
354 | }; | |
355 | ||
9cfc7bd6 | 356 | /* forw_packet - structure for forw_list maintaining packets to be |
c6c8fea2 SE |
357 | * send/forwarded |
358 | */ | |
56303d34 | 359 | struct batadv_forw_packet { |
c6c8fea2 SE |
360 | struct hlist_node list; |
361 | unsigned long send_time; | |
362 | uint8_t own; | |
363 | struct sk_buff *skb; | |
364 | uint16_t packet_len; | |
365 | uint32_t direct_link_flags; | |
366 | uint8_t num_packets; | |
367 | struct delayed_work delayed_work; | |
56303d34 | 368 | struct batadv_hard_iface *if_incoming; |
c6c8fea2 SE |
369 | }; |
370 | ||
371 | /* While scanning for vis-entries of a particular vis-originator | |
372 | * this list collects its interfaces to create a subgraph/cluster | |
373 | * out of them later | |
374 | */ | |
56303d34 | 375 | struct batadv_if_list_entry { |
c6c8fea2 SE |
376 | uint8_t addr[ETH_ALEN]; |
377 | bool primary; | |
378 | struct hlist_node list; | |
379 | }; | |
380 | ||
56303d34 | 381 | struct batadv_debug_log { |
42d0b044 | 382 | char log_buff[BATADV_LOG_BUF_LEN]; |
c6c8fea2 SE |
383 | unsigned long log_start; |
384 | unsigned long log_end; | |
385 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
386 | wait_queue_head_t queue_wait; | |
387 | }; | |
388 | ||
56303d34 | 389 | struct batadv_frag_packet_list_entry { |
c6c8fea2 SE |
390 | struct list_head list; |
391 | uint16_t seqno; | |
392 | struct sk_buff *skb; | |
393 | }; | |
394 | ||
56303d34 | 395 | struct batadv_vis_info { |
40219672 AQ |
396 | unsigned long first_seen; |
397 | /* list of server-neighbors we received a vis-packet | |
9cfc7bd6 SE |
398 | * from. we should not reply to them. |
399 | */ | |
40219672 | 400 | struct list_head recv_list; |
c6c8fea2 SE |
401 | struct list_head send_list; |
402 | struct kref refcount; | |
7aadf889 | 403 | struct hlist_node hash_entry; |
56303d34 | 404 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
405 | /* this packet might be part of the vis send queue. */ |
406 | struct sk_buff *skb_packet; | |
9cfc7bd6 | 407 | /* vis_info may follow here */ |
aa0adb1a | 408 | } __packed; |
c6c8fea2 | 409 | |
56303d34 | 410 | struct batadv_vis_info_entry { |
c6c8fea2 SE |
411 | uint8_t src[ETH_ALEN]; |
412 | uint8_t dest[ETH_ALEN]; | |
2dafb49d | 413 | uint8_t quality; /* quality = 0 client */ |
aa0adb1a | 414 | } __packed; |
c6c8fea2 | 415 | |
56303d34 | 416 | struct batadv_recvlist_node { |
c6c8fea2 SE |
417 | struct list_head list; |
418 | uint8_t mac[ETH_ALEN]; | |
419 | }; | |
420 | ||
56303d34 | 421 | struct batadv_algo_ops { |
1c280471 ML |
422 | struct hlist_node list; |
423 | char *name; | |
c2aca022 | 424 | /* init routing info when hard-interface is enabled */ |
56303d34 | 425 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
00a50076 | 426 | /* de-init routing info when hard-interface is disabled */ |
56303d34 | 427 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
c3229398 ML |
428 | /* (re-)init mac addresses of the protocol information |
429 | * belonging to this hard-interface | |
430 | */ | |
56303d34 | 431 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
cd8b78e7 | 432 | /* called when primary interface is selected / changed */ |
56303d34 | 433 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
01c4224b | 434 | /* prepare a new outgoing OGM for the send queue */ |
56303d34 | 435 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
01c4224b | 436 | /* send scheduled OGM */ |
56303d34 | 437 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
1c280471 ML |
438 | }; |
439 | ||
c6c8fea2 | 440 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |