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0b873931 | 1 | /* Copyright (C) 2007-2013 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 | |
88a32c9a ML |
27 | /** |
28 | * Maximum overhead for the encapsulation for a payload packet | |
29 | */ | |
c11fdfae | 30 | #define BATADV_HEADER_LEN \ |
96412690 SE |
31 | (ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \ |
32 | sizeof(struct batadv_bcast_packet))) | |
c6c8fea2 | 33 | |
17224474 AQ |
34 | #ifdef CONFIG_BATMAN_ADV_DAT |
35 | ||
785ea114 AQ |
36 | /* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed, |
37 | * BATADV_DAT_ADDR_MAX is changed as well. | |
38 | * | |
39 | * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
40 | */ | |
41 | #define batadv_dat_addr_t uint16_t | |
42 | ||
17224474 AQ |
43 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
44 | ||
14511519 ML |
45 | /** |
46 | * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data | |
47 | * @ogm_buff: buffer holding the OGM packet | |
48 | * @ogm_buff_len: length of the OGM packet buffer | |
49 | * @ogm_seqno: OGM sequence number - used to identify each OGM | |
50 | */ | |
51 | struct batadv_hard_iface_bat_iv { | |
52 | unsigned char *ogm_buff; | |
53 | int ogm_buff_len; | |
54 | atomic_t ogm_seqno; | |
55 | }; | |
56 | ||
88a32c9a ML |
57 | /** |
58 | * struct batadv_hard_iface - network device known to batman-adv | |
59 | * @list: list node for batadv_hardif_list | |
60 | * @if_num: identificator of the interface | |
61 | * @if_status: status of the interface for batman-adv | |
62 | * @net_dev: pointer to the net_device | |
63 | * @frag_seqno: last fragment sequence number sent by this interface | |
64 | * @hardif_obj: kobject of the per interface sysfs "mesh" directory | |
65 | * @refcount: number of contexts the object is used | |
66 | * @batman_adv_ptype: packet type describing packets that should be processed by | |
67 | * batman-adv for this interface | |
68 | * @soft_iface: the batman-adv interface which uses this network interface | |
69 | * @rcu: struct used for freeing in an RCU-safe manner | |
70 | * @bat_iv: BATMAN IV specific per hard interface data | |
5bc44dc8 | 71 | * @cleanup_work: work queue callback item for hard interface deinit |
88a32c9a | 72 | */ |
56303d34 | 73 | struct batadv_hard_iface { |
c6c8fea2 SE |
74 | struct list_head list; |
75 | int16_t if_num; | |
76 | char if_status; | |
77 | struct net_device *net_dev; | |
c6c8fea2 | 78 | atomic_t frag_seqno; |
c6c8fea2 | 79 | struct kobject *hardif_obj; |
ed75ccbe | 80 | atomic_t refcount; |
c6c8fea2 SE |
81 | struct packet_type batman_adv_ptype; |
82 | struct net_device *soft_iface; | |
83 | struct rcu_head rcu; | |
14511519 | 84 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 85 | struct work_struct cleanup_work; |
c6c8fea2 SE |
86 | }; |
87 | ||
2c53040f | 88 | /** |
b6d0ab7c | 89 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 90 | * @orig: originator ethernet address |
b6d0ab7c | 91 | * @primary_addr: hosts primary interface address |
88a32c9a ML |
92 | * @router: router that should be used to reach this originator |
93 | * @batadv_dat_addr_t: address of the orig node in the distributed hash | |
94 | * @bcast_own: bitfield containing the number of our OGMs this orig_node | |
95 | * rebroadcasted "back" to us (relative to last_real_seqno) | |
96 | * @bcast_own_sum: counted result of bcast_own | |
97 | * @last_seen: time when last packet from this node was received | |
b6d0ab7c ML |
98 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
99 | * @batman_seqno_reset: time when the batman seqno window was reset | |
100 | * @gw_flags: flags related to gateway class | |
101 | * @flags: for now only VIS_SERVER flag | |
88a32c9a ML |
102 | * @last_ttvn: last seen translation table version number |
103 | * @tt_crc: CRC of the translation table | |
104 | * @tt_buff: last tt changeset this node received from the orig node | |
105 | * @tt_buff_len: length of the last tt changeset this node received from the | |
106 | * orig node | |
107 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
108 | * @tt_size: number of global TT entries announced by the orig node | |
109 | * @tt_initialised: bool keeping track of whether or not this node have received | |
110 | * any translation table information from the orig node yet | |
b6d0ab7c ML |
111 | * @last_real_seqno: last and best known sequence number |
112 | * @last_ttl: ttl of last received packet | |
88a32c9a ML |
113 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
114 | * from this orig node this host already has seen (relative to | |
115 | * last_bcast_seqno) | |
b6d0ab7c | 116 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a ML |
117 | * @neigh_list: list of potential next hop neighbor towards this orig node |
118 | * @frag_list: fragmentation buffer list for fragment re-assembly | |
119 | * @last_frag_packet: time when last fragmented packet from this node was | |
120 | * received | |
121 | * @neigh_list_lock: lock protecting neigh_list, router and bonding_list | |
122 | * @hash_entry: hlist node for batadv_priv::orig_hash | |
123 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
124 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, | |
125 | * neigh_node->real_bits & neigh_node->real_packet_count | |
126 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno | |
127 | * @bond_candidates: how many candidates are available | |
128 | * @bond_list: list of bonding candidates | |
129 | * @refcount: number of contexts the object is used | |
130 | * @rcu: struct used for freeing in an RCU-safe manner | |
c6c8fea2 | 131 | */ |
56303d34 | 132 | struct batadv_orig_node { |
c6c8fea2 SE |
133 | uint8_t orig[ETH_ALEN]; |
134 | uint8_t primary_addr[ETH_ALEN]; | |
56303d34 | 135 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ |
17224474 | 136 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 137 | batadv_dat_addr_t dat_addr; |
17224474 | 138 | #endif |
c6c8fea2 SE |
139 | unsigned long *bcast_own; |
140 | uint8_t *bcast_own_sum; | |
d7b2a97e | 141 | unsigned long last_seen; |
c6c8fea2 SE |
142 | unsigned long bcast_seqno_reset; |
143 | unsigned long batman_seqno_reset; | |
144 | uint8_t gw_flags; | |
145 | uint8_t flags; | |
88a32c9a | 146 | atomic_t last_ttvn; |
a73105b8 | 147 | uint16_t tt_crc; |
2dafb49d AQ |
148 | unsigned char *tt_buff; |
149 | int16_t tt_buff_len; | |
88a32c9a | 150 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
a73105b8 | 151 | atomic_t tt_size; |
17071578 | 152 | bool tt_initialised; |
c6c8fea2 SE |
153 | uint32_t last_real_seqno; |
154 | uint8_t last_ttl; | |
42d0b044 | 155 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 156 | uint32_t last_bcast_seqno; |
9591a79f | 157 | struct hlist_head neigh_list; |
c6c8fea2 | 158 | struct list_head frag_list; |
88a32c9a ML |
159 | unsigned long last_frag_packet; |
160 | /* neigh_list_lock protects: neigh_list, router & bonding_list */ | |
161 | spinlock_t neigh_list_lock; | |
7aadf889 | 162 | struct hlist_node hash_entry; |
56303d34 | 163 | struct batadv_priv *bat_priv; |
6e215fd8 | 164 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, |
88a32c9a | 165 | * neigh_node->real_bits & neigh_node->real_packet_count |
9cfc7bd6 | 166 | */ |
6e215fd8 | 167 | spinlock_t ogm_cnt_lock; |
88a32c9a | 168 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 169 | spinlock_t bcast_seqno_lock; |
a4c135c5 SW |
170 | atomic_t bond_candidates; |
171 | struct list_head bond_list; | |
88a32c9a ML |
172 | atomic_t refcount; |
173 | struct rcu_head rcu; | |
c6c8fea2 SE |
174 | }; |
175 | ||
88a32c9a ML |
176 | /** |
177 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
178 | * @list: list node for batadv_priv_gw::list | |
179 | * @orig_node: pointer to corresponding orig node | |
180 | * @deleted: this struct is scheduled for deletion | |
181 | * @refcount: number of contexts the object is used | |
182 | * @rcu: struct used for freeing in an RCU-safe manner | |
183 | */ | |
56303d34 | 184 | struct batadv_gw_node { |
c6c8fea2 | 185 | struct hlist_node list; |
56303d34 | 186 | struct batadv_orig_node *orig_node; |
c6c8fea2 | 187 | unsigned long deleted; |
25b6d3c1 | 188 | atomic_t refcount; |
c6c8fea2 SE |
189 | struct rcu_head rcu; |
190 | }; | |
191 | ||
88a32c9a ML |
192 | /** |
193 | * struct batadv_neigh_node - structure for single hop neighbors | |
194 | * @list: list node for batadv_orig_node::neigh_list | |
195 | * @addr: mac address of neigh node | |
196 | * @tq_recv: ring buffer of received TQ values from this neigh node | |
197 | * @tq_index: ring buffer index | |
198 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
199 | * @last_ttl: last received ttl from this neigh node | |
200 | * @bonding_list: list node for batadv_orig_node::bond_list | |
201 | * @last_seen: when last packet via this neighbor was received | |
202 | * @real_bits: bitfield containing the number of OGMs received from this neigh | |
203 | * node (relative to orig_node->last_real_seqno) | |
204 | * @real_packet_count: counted result of real_bits | |
205 | * @orig_node: pointer to corresponding orig_node | |
206 | * @if_incoming: pointer to incoming hard interface | |
207 | * @lq_update_lock: lock protecting tq_recv & tq_index | |
208 | * @refcount: number of contexts the object is used | |
209 | * @rcu: struct used for freeing in an RCU-safe manner | |
c6c8fea2 | 210 | */ |
56303d34 | 211 | struct batadv_neigh_node { |
9591a79f | 212 | struct hlist_node list; |
c6c8fea2 | 213 | uint8_t addr[ETH_ALEN]; |
42d0b044 | 214 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
c6c8fea2 SE |
215 | uint8_t tq_index; |
216 | uint8_t tq_avg; | |
217 | uint8_t last_ttl; | |
a4c135c5 | 218 | struct list_head bonding_list; |
d7b2a97e | 219 | unsigned long last_seen; |
42d0b044 | 220 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
88a32c9a | 221 | uint8_t real_packet_count; |
56303d34 SE |
222 | struct batadv_orig_node *orig_node; |
223 | struct batadv_hard_iface *if_incoming; | |
88a32c9a ML |
224 | spinlock_t lq_update_lock; /* protects tq_recv & tq_index */ |
225 | atomic_t refcount; | |
226 | struct rcu_head rcu; | |
c6c8fea2 SE |
227 | }; |
228 | ||
88a32c9a ML |
229 | /** |
230 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
231 | * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast | |
232 | * @crc: crc32 checksum of broadcast payload | |
233 | * @entrytime: time when the broadcast packet was received | |
234 | */ | |
7a5cc242 | 235 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 236 | struct batadv_bcast_duplist_entry { |
fe2da6ff | 237 | uint8_t orig[ETH_ALEN]; |
004e86fc | 238 | __be32 crc; |
fe2da6ff SW |
239 | unsigned long entrytime; |
240 | }; | |
7a5cc242 | 241 | #endif |
c6c8fea2 | 242 | |
88a32c9a ML |
243 | /** |
244 | * enum batadv_counters - indices for traffic counters | |
245 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
246 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
247 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
248 | * @BATADV_CNT_RX: received payload traffic packet counter | |
249 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
250 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
251 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
252 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
253 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
254 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
255 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
256 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter | |
257 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
258 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
259 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
260 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
261 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
262 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
263 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
264 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
265 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
266 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
267 | * counter | |
268 | * @BATADV_CNT_NUM: number of traffic counters | |
269 | */ | |
d69909d2 | 270 | enum batadv_counters { |
1c9b0550 ML |
271 | BATADV_CNT_TX, |
272 | BATADV_CNT_TX_BYTES, | |
273 | BATADV_CNT_TX_DROPPED, | |
274 | BATADV_CNT_RX, | |
275 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
276 | BATADV_CNT_FORWARD, |
277 | BATADV_CNT_FORWARD_BYTES, | |
278 | BATADV_CNT_MGMT_TX, | |
279 | BATADV_CNT_MGMT_TX_BYTES, | |
280 | BATADV_CNT_MGMT_RX, | |
281 | BATADV_CNT_MGMT_RX_BYTES, | |
282 | BATADV_CNT_TT_REQUEST_TX, | |
283 | BATADV_CNT_TT_REQUEST_RX, | |
284 | BATADV_CNT_TT_RESPONSE_TX, | |
285 | BATADV_CNT_TT_RESPONSE_RX, | |
286 | BATADV_CNT_TT_ROAM_ADV_TX, | |
287 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
288 | #ifdef CONFIG_BATMAN_ADV_DAT |
289 | BATADV_CNT_DAT_GET_TX, | |
290 | BATADV_CNT_DAT_GET_RX, | |
291 | BATADV_CNT_DAT_PUT_TX, | |
292 | BATADV_CNT_DAT_PUT_RX, | |
293 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
294 | #endif | |
d69909d2 | 295 | BATADV_CNT_NUM, |
f8214865 MH |
296 | }; |
297 | ||
807736f6 SE |
298 | /** |
299 | * struct batadv_priv_tt - per mesh interface translation table data | |
300 | * @vn: translation table version number | |
88a32c9a | 301 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 302 | * @local_changes: changes registered in an originator interval |
807736f6 | 303 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
304 | * @local_hash: local translation table hash table |
305 | * @global_hash: global translation table hash table | |
306 | * @req_list: list of pending & unanswered tt_requests | |
307 | * @roam_list: list of the last roaming events of each client limiting the | |
308 | * number of roaming events to avoid route flapping | |
309 | * @changes_list_lock: lock protecting changes_list | |
310 | * @req_list_lock: lock protecting req_list | |
311 | * @roam_list_lock: lock protecting roam_list | |
312 | * @local_entry_num: number of entries in the local hash table | |
807736f6 | 313 | * @local_crc: Checksum of the local table, recomputed before sending a new OGM |
88a32c9a ML |
314 | * @last_changeset: last tt changeset this host has generated |
315 | * @last_changeset_len: length of last tt changeset this host has generated | |
316 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
317 | * @work: work queue callback item for translation table purging | |
807736f6 SE |
318 | */ |
319 | struct batadv_priv_tt { | |
320 | atomic_t vn; | |
321 | atomic_t ogm_append_cnt; | |
322 | atomic_t local_changes; | |
807736f6 SE |
323 | struct list_head changes_list; |
324 | struct batadv_hashtable *local_hash; | |
325 | struct batadv_hashtable *global_hash; | |
326 | struct list_head req_list; | |
327 | struct list_head roam_list; | |
328 | spinlock_t changes_list_lock; /* protects changes */ | |
329 | spinlock_t req_list_lock; /* protects req_list */ | |
330 | spinlock_t roam_list_lock; /* protects roam_list */ | |
331 | atomic_t local_entry_num; | |
332 | uint16_t local_crc; | |
333 | unsigned char *last_changeset; | |
334 | int16_t last_changeset_len; | |
88a32c9a ML |
335 | /* protects last_changeset & last_changeset_len */ |
336 | spinlock_t last_changeset_lock; | |
807736f6 SE |
337 | struct delayed_work work; |
338 | }; | |
339 | ||
88a32c9a ML |
340 | /** |
341 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
342 | * @num_requests; number of bla requests in flight | |
343 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
344 | * @backbone_hash: hash table containing all detected backbone gateways | |
345 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
346 | * duplicate suppression) | |
347 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
348 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
349 | * @claim_dest: local claim data (e.g. claim group) | |
350 | * @work: work queue callback item for cleanups & bla announcements | |
351 | */ | |
807736f6 SE |
352 | #ifdef CONFIG_BATMAN_ADV_BLA |
353 | struct batadv_priv_bla { | |
88a32c9a | 354 | atomic_t num_requests; |
807736f6 SE |
355 | struct batadv_hashtable *claim_hash; |
356 | struct batadv_hashtable *backbone_hash; | |
357 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
358 | int bcast_duplist_curr; | |
88a32c9a | 359 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 360 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
361 | struct batadv_bla_claim_dst claim_dest; |
362 | struct delayed_work work; | |
363 | }; | |
364 | #endif | |
365 | ||
88a32c9a ML |
366 | /** |
367 | * struct batadv_debug_log - debug logging data | |
368 | * @log_buff: buffer holding the logs (ring bufer) | |
369 | * @log_start: index of next character to read | |
370 | * @log_end: index of next character to write | |
371 | * @lock: lock protecting log_buff, log_start & log_end | |
372 | * @queue_wait: log reader's wait queue | |
373 | */ | |
0abf5d81 ML |
374 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
375 | struct batadv_priv_debug_log { | |
376 | char log_buff[BATADV_LOG_BUF_LEN]; | |
377 | unsigned long log_start; | |
378 | unsigned long log_end; | |
379 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
380 | wait_queue_head_t queue_wait; | |
381 | }; | |
382 | #endif | |
383 | ||
88a32c9a ML |
384 | /** |
385 | * struct batadv_priv_gw - per mesh interface gateway data | |
386 | * @list: list of available gateway nodes | |
387 | * @list_lock: lock protecting gw_list & curr_gw | |
388 | * @curr_gw: pointer to currently selected gateway node | |
389 | * @reselect: bool indicating a gateway re-selection is in progress | |
390 | */ | |
807736f6 SE |
391 | struct batadv_priv_gw { |
392 | struct hlist_head list; | |
88a32c9a | 393 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 SE |
394 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
395 | atomic_t reselect; | |
396 | }; | |
397 | ||
88a32c9a ML |
398 | /** |
399 | * struct batadv_priv_vis - per mesh interface vis data | |
400 | * @send_list: list of batadv_vis_info packets to sent | |
401 | * @hash: hash table containing vis data from other nodes in the network | |
402 | * @hash_lock: lock protecting the hash table | |
403 | * @list_lock: lock protecting my_info::recv_list | |
404 | * @work: work queue callback item for vis packet sending | |
405 | * @my_info: holds this node's vis data sent on a regular basis | |
406 | */ | |
807736f6 SE |
407 | struct batadv_priv_vis { |
408 | struct list_head send_list; | |
409 | struct batadv_hashtable *hash; | |
410 | spinlock_t hash_lock; /* protects hash */ | |
88a32c9a | 411 | spinlock_t list_lock; /* protects my_info::recv_list */ |
807736f6 SE |
412 | struct delayed_work work; |
413 | struct batadv_vis_info *my_info; | |
414 | }; | |
415 | ||
785ea114 AQ |
416 | /** |
417 | * struct batadv_priv_dat - per mesh interface DAT private data | |
418 | * @addr: node DAT address | |
2f1dfbe1 AQ |
419 | * @hash: hashtable representing the local ARP cache |
420 | * @work: work queue callback item for cache purging | |
785ea114 | 421 | */ |
17224474 | 422 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 AQ |
423 | struct batadv_priv_dat { |
424 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
425 | struct batadv_hashtable *hash; |
426 | struct delayed_work work; | |
785ea114 | 427 | }; |
17224474 | 428 | #endif |
785ea114 | 429 | |
d353d8d4 MH |
430 | /** |
431 | * struct batadv_priv_nc - per mesh interface network coding private data | |
432 | * @work: work queue callback item for cleanup | |
433 | */ | |
434 | struct batadv_priv_nc { | |
435 | struct delayed_work work; | |
436 | }; | |
437 | ||
88a32c9a ML |
438 | /** |
439 | * struct batadv_priv - per mesh interface data | |
440 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 441 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
442 | * @stats: structure holding the data for the ndo_get_stats() call |
443 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
444 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
445 | * @bonding: bool indicating whether traffic bonding is enabled | |
446 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
447 | * @ap_isolation: bool indicating whether ap isolation is enabled | |
448 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is | |
449 | * enabled | |
450 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
451 | * enabled | |
452 | * @vis_mode: vis operation: client or server (see batadv_vis_packettype) | |
453 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) | |
454 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
455 | * @gw_bandwidth: gateway announced bandwidth (applies if gw_mode server) | |
456 | * @orig_interval: OGM broadcast interval in milliseconds | |
457 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
458 | * @log_level: configured log level (see batadv_dbg_level) | |
459 | * @bcast_seqno: last sent broadcast packet sequence number | |
460 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
461 | * @batman_queue_left: number of remaining OGM packet slots | |
462 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
463 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
464 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
465 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
466 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
467 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
468 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
469 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
470 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 471 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
472 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
473 | * becomes the primary interface | |
474 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
475 | * @bla: bridge loope avoidance data | |
476 | * @debug_log: holding debug logging relevant data | |
477 | * @gw: gateway data | |
478 | * @tt: translation table data | |
479 | * @vis: vis data | |
480 | * @dat: distributed arp table data | |
d353d8d4 MH |
481 | * @network_coding: bool indicating whether network coding is enabled |
482 | * @batadv_priv_nc: network coding data | |
88a32c9a | 483 | */ |
56303d34 | 484 | struct batadv_priv { |
c6c8fea2 | 485 | atomic_t mesh_state; |
5bc44dc8 | 486 | struct net_device *soft_iface; |
c6c8fea2 | 487 | struct net_device_stats stats; |
f8214865 | 488 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
489 | atomic_t aggregated_ogms; |
490 | atomic_t bonding; | |
491 | atomic_t fragmentation; | |
492 | atomic_t ap_isolation; | |
fa706554 | 493 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 494 | atomic_t bridge_loop_avoidance; |
fa706554 | 495 | #endif |
33af49ad | 496 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 497 | atomic_t distributed_arp_table; |
33af49ad | 498 | #endif |
88a32c9a ML |
499 | atomic_t vis_mode; |
500 | atomic_t gw_mode; | |
501 | atomic_t gw_sel_class; | |
502 | atomic_t gw_bandwidth; | |
503 | atomic_t orig_interval; | |
504 | atomic_t hop_penalty; | |
0c430d0d | 505 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 506 | atomic_t log_level; |
0c430d0d | 507 | #endif |
c6c8fea2 SE |
508 | atomic_t bcast_seqno; |
509 | atomic_t bcast_queue_left; | |
510 | atomic_t batman_queue_left; | |
511 | char num_ifaces; | |
c6c8fea2 SE |
512 | struct kobject *mesh_obj; |
513 | struct dentry *debug_dir; | |
514 | struct hlist_head forw_bat_list; | |
515 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 516 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 517 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 518 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 519 | struct delayed_work orig_work; |
5bc44dc8 | 520 | struct work_struct cleanup_work; |
56303d34 | 521 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 522 | struct batadv_algo_ops *bat_algo_ops; |
807736f6 SE |
523 | #ifdef CONFIG_BATMAN_ADV_BLA |
524 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
525 | #endif |
526 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
527 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
528 | #endif |
529 | struct batadv_priv_gw gw; | |
530 | struct batadv_priv_tt tt; | |
531 | struct batadv_priv_vis vis; | |
17224474 | 532 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 533 | struct batadv_priv_dat dat; |
17224474 | 534 | #endif |
d353d8d4 MH |
535 | #ifdef CONFIG_BATMAN_ADV_NC |
536 | atomic_t network_coding; | |
537 | struct batadv_priv_nc nc; | |
538 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
539 | }; |
540 | ||
88a32c9a ML |
541 | /** |
542 | * struct batadv_socket_client - layer2 icmp socket client data | |
543 | * @queue_list: packet queue for packets destined for this socket client | |
544 | * @queue_len: number of packets in the packet queue (queue_list) | |
545 | * @index: socket client's index in the batadv_socket_client_hash | |
546 | * @lock: lock protecting queue_list, queue_len & index | |
547 | * @queue_wait: socket client's wait queue | |
548 | * @bat_priv: pointer to soft_iface this client belongs to | |
549 | */ | |
56303d34 | 550 | struct batadv_socket_client { |
c6c8fea2 SE |
551 | struct list_head queue_list; |
552 | unsigned int queue_len; | |
553 | unsigned char index; | |
88a32c9a | 554 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 555 | wait_queue_head_t queue_wait; |
56303d34 | 556 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
557 | }; |
558 | ||
88a32c9a ML |
559 | /** |
560 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
561 | * @list: list node for batadv_socket_client::queue_list | |
562 | * @icmp_len: size of the layer2 icmp packet | |
563 | * @icmp_packet: layer2 icmp packet | |
564 | */ | |
56303d34 | 565 | struct batadv_socket_packet { |
c6c8fea2 SE |
566 | struct list_head list; |
567 | size_t icmp_len; | |
96412690 | 568 | struct batadv_icmp_packet_rr icmp_packet; |
c6c8fea2 SE |
569 | }; |
570 | ||
88a32c9a ML |
571 | /** |
572 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
573 | * @orig: originator address of backbone node (mac address of primary iface) | |
574 | * @vid: vlan id this gateway was detected on | |
575 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
576 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
577 | * @lasttime: last time we heard of this backbone gw | |
578 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
579 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
580 | * @request_sent: if this bool is set to true we are out of sync with this | |
581 | * backbone gateway - no bcast traffic is formwared until the situation was | |
582 | * resolved | |
583 | * @crc: crc16 checksum over all claims | |
584 | * @refcount: number of contexts the object is used | |
585 | * @rcu: struct used for freeing in an RCU-safe manner | |
586 | */ | |
2006fea8 | 587 | #ifdef CONFIG_BATMAN_ADV_BLA |
bae98774 | 588 | struct batadv_bla_backbone_gw { |
2006fea8 | 589 | uint8_t orig[ETH_ALEN]; |
88a32c9a | 590 | short vid; |
2006fea8 ML |
591 | struct hlist_node hash_entry; |
592 | struct batadv_priv *bat_priv; | |
88a32c9a | 593 | unsigned long lasttime; |
2006fea8 ML |
594 | atomic_t wait_periods; |
595 | atomic_t request_sent; | |
88a32c9a | 596 | uint16_t crc; |
2006fea8 ML |
597 | atomic_t refcount; |
598 | struct rcu_head rcu; | |
2006fea8 ML |
599 | }; |
600 | ||
88a32c9a ML |
601 | /** |
602 | * struct batadv_bla_claim - claimed non-mesh client structure | |
603 | * @addr: mac address of claimed non-mesh client | |
604 | * @vid: vlan id this client was detected on | |
605 | * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client | |
606 | * @lasttime: last time we heard of claim (locals only) | |
607 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
608 | * @refcount: number of contexts the object is used | |
609 | * @rcu: struct used for freeing in an RCU-safe manner | |
610 | */ | |
712bbfe4 | 611 | struct batadv_bla_claim { |
2006fea8 ML |
612 | uint8_t addr[ETH_ALEN]; |
613 | short vid; | |
bae98774 | 614 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
615 | unsigned long lasttime; |
616 | struct hlist_node hash_entry; | |
2006fea8 ML |
617 | struct rcu_head rcu; |
618 | atomic_t refcount; | |
2006fea8 ML |
619 | }; |
620 | #endif | |
621 | ||
88a32c9a ML |
622 | /** |
623 | * struct batadv_tt_common_entry - tt local & tt global common data | |
624 | * @addr: mac address of non-mesh client | |
625 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for | |
626 | * batadv_priv_tt::global_hash | |
627 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
628 | * @added_at: timestamp used for purging stale tt common entries | |
629 | * @refcount: number of contexts the object is used | |
630 | * @rcu: struct used for freeing in an RCU-safe manner | |
631 | */ | |
56303d34 | 632 | struct batadv_tt_common_entry { |
c6c8fea2 | 633 | uint8_t addr[ETH_ALEN]; |
93840ac4 | 634 | struct hlist_node hash_entry; |
5fbc1598 | 635 | uint16_t flags; |
30cfd02b | 636 | unsigned long added_at; |
7683fdc1 AQ |
637 | atomic_t refcount; |
638 | struct rcu_head rcu; | |
c6c8fea2 SE |
639 | }; |
640 | ||
88a32c9a ML |
641 | /** |
642 | * struct batadv_tt_local_entry - translation table local entry data | |
643 | * @common: general translation table data | |
644 | * @last_seen: timestamp used for purging stale tt local entries | |
645 | */ | |
56303d34 SE |
646 | struct batadv_tt_local_entry { |
647 | struct batadv_tt_common_entry common; | |
48100bac AQ |
648 | unsigned long last_seen; |
649 | }; | |
650 | ||
88a32c9a ML |
651 | /** |
652 | * struct batadv_tt_global_entry - translation table global entry data | |
653 | * @common: general translation table data | |
654 | * @orig_list: list of orig nodes announcing this non-mesh client | |
655 | * @list_lock: lock protecting orig_list | |
656 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
657 | */ | |
56303d34 SE |
658 | struct batadv_tt_global_entry { |
659 | struct batadv_tt_common_entry common; | |
db08e6e5 | 660 | struct hlist_head orig_list; |
88a32c9a ML |
661 | spinlock_t list_lock; /* protects orig_list */ |
662 | unsigned long roam_at; | |
db08e6e5 SW |
663 | }; |
664 | ||
88a32c9a ML |
665 | /** |
666 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
667 | * @orig_node: pointer to orig node announcing this non-mesh client | |
668 | * @ttvn: translation table version number which added the non-mesh client | |
669 | * @list: list node for batadv_tt_global_entry::orig_list | |
670 | * @refcount: number of contexts the object is used | |
671 | * @rcu: struct used for freeing in an RCU-safe manner | |
672 | */ | |
56303d34 SE |
673 | struct batadv_tt_orig_list_entry { |
674 | struct batadv_orig_node *orig_node; | |
a73105b8 | 675 | uint8_t ttvn; |
88a32c9a | 676 | struct hlist_node list; |
d657e621 | 677 | atomic_t refcount; |
db08e6e5 | 678 | struct rcu_head rcu; |
c6c8fea2 SE |
679 | }; |
680 | ||
88a32c9a ML |
681 | /** |
682 | * struct batadv_tt_change_node - structure for tt changes occured | |
683 | * @list: list node for batadv_priv_tt::changes_list | |
684 | * @change: holds the actual translation table diff data | |
685 | */ | |
56303d34 | 686 | struct batadv_tt_change_node { |
a73105b8 | 687 | struct list_head list; |
96412690 | 688 | struct batadv_tt_change change; |
a73105b8 AQ |
689 | }; |
690 | ||
88a32c9a ML |
691 | /** |
692 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
693 | * @addr: mac address address of the originator this request was sent to | |
694 | * @issued_at: timestamp used for purging stale tt requests | |
695 | * @list: list node for batadv_priv_tt::req_list | |
696 | */ | |
56303d34 | 697 | struct batadv_tt_req_node { |
a73105b8 AQ |
698 | uint8_t addr[ETH_ALEN]; |
699 | unsigned long issued_at; | |
700 | struct list_head list; | |
701 | }; | |
702 | ||
88a32c9a ML |
703 | /** |
704 | * struct batadv_tt_roam_node - roaming client data | |
705 | * @addr: mac address of the client in the roaming phase | |
706 | * @counter: number of allowed roaming events per client within a single | |
707 | * OGM interval (changes are committed with each OGM) | |
708 | * @first_time: timestamp used for purging stale roaming node entries | |
709 | * @list: list node for batadv_priv_tt::roam_list | |
710 | */ | |
56303d34 | 711 | struct batadv_tt_roam_node { |
cc47f66e AQ |
712 | uint8_t addr[ETH_ALEN]; |
713 | atomic_t counter; | |
714 | unsigned long first_time; | |
715 | struct list_head list; | |
716 | }; | |
717 | ||
88a32c9a ML |
718 | /** |
719 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
720 | * @list: list node for batadv_socket_client::queue_list | |
721 | * @send_time: execution time for delayed_work (packet sending) | |
722 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
723 | * sending) | |
724 | * @skb: bcast packet's skb buffer | |
725 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
726 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
727 | * @num_packets: counter for bcast packet retransmission | |
728 | * @delayed_work: work queue callback item for packet sending | |
729 | * @if_incoming: pointer incoming hard-iface or primary iface if locally | |
730 | * generated packet | |
c6c8fea2 | 731 | */ |
56303d34 | 732 | struct batadv_forw_packet { |
c6c8fea2 SE |
733 | struct hlist_node list; |
734 | unsigned long send_time; | |
735 | uint8_t own; | |
736 | struct sk_buff *skb; | |
737 | uint16_t packet_len; | |
738 | uint32_t direct_link_flags; | |
739 | uint8_t num_packets; | |
740 | struct delayed_work delayed_work; | |
56303d34 | 741 | struct batadv_hard_iface *if_incoming; |
c6c8fea2 SE |
742 | }; |
743 | ||
88a32c9a ML |
744 | /** |
745 | * struct batadv_frag_packet_list_entry - storage for fragment packet | |
746 | * @list: list node for orig_node::frag_list | |
747 | * @seqno: sequence number of the fragment | |
748 | * @skb: fragment's skb buffer | |
749 | */ | |
56303d34 | 750 | struct batadv_frag_packet_list_entry { |
c6c8fea2 SE |
751 | struct list_head list; |
752 | uint16_t seqno; | |
753 | struct sk_buff *skb; | |
754 | }; | |
755 | ||
88a32c9a ML |
756 | /** |
757 | * struct batadv_vis_info - local data for vis information | |
758 | * @first_seen: timestamp used for purging stale vis info entries | |
759 | * @recv_list: List of server-neighbors we have received this packet from. This | |
760 | * packet should not be re-forward to them again. List elements are struct | |
761 | * batadv_vis_recvlist_node | |
762 | * @send_list: list of packets to be forwarded | |
763 | * @refcount: number of contexts the object is used | |
764 | * @hash_entry: hlist node for batadv_priv_vis::hash | |
765 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
766 | * @skb_packet: contains the vis packet | |
767 | */ | |
56303d34 | 768 | struct batadv_vis_info { |
40219672 | 769 | unsigned long first_seen; |
40219672 | 770 | struct list_head recv_list; |
c6c8fea2 SE |
771 | struct list_head send_list; |
772 | struct kref refcount; | |
7aadf889 | 773 | struct hlist_node hash_entry; |
56303d34 | 774 | struct batadv_priv *bat_priv; |
c6c8fea2 | 775 | struct sk_buff *skb_packet; |
aa0adb1a | 776 | } __packed; |
c6c8fea2 | 777 | |
88a32c9a ML |
778 | /** |
779 | * struct batadv_vis_info_entry - contains link information for vis | |
780 | * @src: source MAC of the link, all zero for local TT entry | |
781 | * @dst: destination MAC of the link, client mac address for local TT entry | |
782 | * @quality: transmission quality of the link, or 0 for local TT entry | |
783 | */ | |
56303d34 | 784 | struct batadv_vis_info_entry { |
c6c8fea2 SE |
785 | uint8_t src[ETH_ALEN]; |
786 | uint8_t dest[ETH_ALEN]; | |
88a32c9a | 787 | uint8_t quality; |
aa0adb1a | 788 | } __packed; |
c6c8fea2 | 789 | |
88a32c9a ML |
790 | /** |
791 | * struct batadv_vis_recvlist_node - list entry for batadv_vis_info::recv_list | |
792 | * @list: list node for batadv_vis_info::recv_list | |
793 | * @mac: MAC address of the originator from where the vis_info was received | |
794 | */ | |
28500f07 | 795 | struct batadv_vis_recvlist_node { |
c6c8fea2 SE |
796 | struct list_head list; |
797 | uint8_t mac[ETH_ALEN]; | |
798 | }; | |
799 | ||
88a32c9a ML |
800 | /** |
801 | * struct batadv_vis_if_list_entry - auxiliary data for vis data generation | |
802 | * @addr: MAC address of the interface | |
803 | * @primary: true if this interface is the primary interface | |
804 | * @list: list node the interface list | |
805 | * | |
806 | * While scanning for vis-entries of a particular vis-originator | |
015b4ae4 ML |
807 | * this list collects its interfaces to create a subgraph/cluster |
808 | * out of them later | |
809 | */ | |
810 | struct batadv_vis_if_list_entry { | |
811 | uint8_t addr[ETH_ALEN]; | |
812 | bool primary; | |
813 | struct hlist_node list; | |
814 | }; | |
815 | ||
88a32c9a ML |
816 | /** |
817 | * struct batadv_algo_ops - mesh algorithm callbacks | |
818 | * @list: list node for the batadv_algo_list | |
819 | * @name: name of the algorithm | |
820 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
821 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
822 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
823 | * belonging to this hard-interface | |
824 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
825 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
826 | * @bat_ogm_emit: send scheduled OGM | |
827 | */ | |
56303d34 | 828 | struct batadv_algo_ops { |
1c280471 ML |
829 | struct hlist_node list; |
830 | char *name; | |
56303d34 | 831 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 832 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 833 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 834 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 835 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 836 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
1c280471 ML |
837 | }; |
838 | ||
2f1dfbe1 AQ |
839 | /** |
840 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
841 | * is used to stored ARP entries needed for the global DAT cache | |
842 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
843 | * @mac_addr: the MAC address associated to the stored IPv4 | |
844 | * @last_update: time in jiffies when this entry was refreshed last time | |
845 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
846 | * @refcount: number of contexts the object is used | |
847 | * @rcu: struct used for freeing in an RCU-safe manner | |
848 | */ | |
849 | struct batadv_dat_entry { | |
850 | __be32 ip; | |
851 | uint8_t mac_addr[ETH_ALEN]; | |
852 | unsigned long last_update; | |
853 | struct hlist_node hash_entry; | |
854 | atomic_t refcount; | |
855 | struct rcu_head rcu; | |
856 | }; | |
857 | ||
785ea114 AQ |
858 | /** |
859 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
860 | * @type: the type of the selected candidate. It can one of the following: | |
861 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
862 | * - BATADV_DAT_CANDIDATE_ORIG | |
863 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
864 | * corresponding originator node structure | |
865 | */ | |
866 | struct batadv_dat_candidate { | |
867 | int type; | |
868 | struct batadv_orig_node *orig_node; | |
869 | }; | |
870 | ||
c6c8fea2 | 871 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |