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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 | |
caf65bfc | 64 | * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) |
88a32c9a ML |
65 | * @hardif_obj: kobject of the per interface sysfs "mesh" directory |
66 | * @refcount: number of contexts the object is used | |
67 | * @batman_adv_ptype: packet type describing packets that should be processed by | |
68 | * batman-adv for this interface | |
69 | * @soft_iface: the batman-adv interface which uses this network interface | |
70 | * @rcu: struct used for freeing in an RCU-safe manner | |
71 | * @bat_iv: BATMAN IV specific per hard interface data | |
5bc44dc8 | 72 | * @cleanup_work: work queue callback item for hard interface deinit |
88a32c9a | 73 | */ |
56303d34 | 74 | struct batadv_hard_iface { |
c6c8fea2 SE |
75 | struct list_head list; |
76 | int16_t if_num; | |
77 | char if_status; | |
78 | struct net_device *net_dev; | |
c6c8fea2 | 79 | atomic_t frag_seqno; |
caf65bfc | 80 | uint8_t num_bcasts; |
c6c8fea2 | 81 | struct kobject *hardif_obj; |
ed75ccbe | 82 | atomic_t refcount; |
c6c8fea2 SE |
83 | struct packet_type batman_adv_ptype; |
84 | struct net_device *soft_iface; | |
85 | struct rcu_head rcu; | |
14511519 | 86 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 87 | struct work_struct cleanup_work; |
c6c8fea2 SE |
88 | }; |
89 | ||
2c53040f | 90 | /** |
b6d0ab7c | 91 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 92 | * @orig: originator ethernet address |
b6d0ab7c | 93 | * @primary_addr: hosts primary interface address |
88a32c9a ML |
94 | * @router: router that should be used to reach this originator |
95 | * @batadv_dat_addr_t: address of the orig node in the distributed hash | |
96 | * @bcast_own: bitfield containing the number of our OGMs this orig_node | |
97 | * rebroadcasted "back" to us (relative to last_real_seqno) | |
98 | * @bcast_own_sum: counted result of bcast_own | |
99 | * @last_seen: time when last packet from this node was received | |
b6d0ab7c ML |
100 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
101 | * @batman_seqno_reset: time when the batman seqno window was reset | |
b6d0ab7c | 102 | * @flags: for now only VIS_SERVER flag |
88a32c9a ML |
103 | * @last_ttvn: last seen translation table version number |
104 | * @tt_crc: CRC of the translation table | |
105 | * @tt_buff: last tt changeset this node received from the orig node | |
106 | * @tt_buff_len: length of the last tt changeset this node received from the | |
107 | * orig node | |
108 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
109 | * @tt_size: number of global TT entries announced by the orig node | |
110 | * @tt_initialised: bool keeping track of whether or not this node have received | |
111 | * any translation table information from the orig node yet | |
b6d0ab7c ML |
112 | * @last_real_seqno: last and best known sequence number |
113 | * @last_ttl: ttl of last received packet | |
88a32c9a ML |
114 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
115 | * from this orig node this host already has seen (relative to | |
116 | * last_bcast_seqno) | |
b6d0ab7c | 117 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a ML |
118 | * @neigh_list: list of potential next hop neighbor towards this orig node |
119 | * @frag_list: fragmentation buffer list for fragment re-assembly | |
120 | * @last_frag_packet: time when last fragmented packet from this node was | |
121 | * received | |
122 | * @neigh_list_lock: lock protecting neigh_list, router and bonding_list | |
123 | * @hash_entry: hlist node for batadv_priv::orig_hash | |
124 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
125 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, | |
126 | * neigh_node->real_bits & neigh_node->real_packet_count | |
127 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno | |
128 | * @bond_candidates: how many candidates are available | |
129 | * @bond_list: list of bonding candidates | |
130 | * @refcount: number of contexts the object is used | |
131 | * @rcu: struct used for freeing in an RCU-safe manner | |
d56b1705 MH |
132 | * @in_coding_list: list of nodes this orig can hear |
133 | * @out_coding_list: list of nodes that can hear this orig | |
134 | * @in_coding_list_lock: protects in_coding_list | |
135 | * @out_coding_list_lock: protects out_coding_list | |
c6c8fea2 | 136 | */ |
56303d34 | 137 | struct batadv_orig_node { |
c6c8fea2 SE |
138 | uint8_t orig[ETH_ALEN]; |
139 | uint8_t primary_addr[ETH_ALEN]; | |
56303d34 | 140 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ |
17224474 | 141 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 142 | batadv_dat_addr_t dat_addr; |
17224474 | 143 | #endif |
c6c8fea2 SE |
144 | unsigned long *bcast_own; |
145 | uint8_t *bcast_own_sum; | |
d7b2a97e | 146 | unsigned long last_seen; |
c6c8fea2 SE |
147 | unsigned long bcast_seqno_reset; |
148 | unsigned long batman_seqno_reset; | |
c6c8fea2 | 149 | uint8_t flags; |
88a32c9a | 150 | atomic_t last_ttvn; |
a73105b8 | 151 | uint16_t tt_crc; |
2dafb49d AQ |
152 | unsigned char *tt_buff; |
153 | int16_t tt_buff_len; | |
88a32c9a | 154 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
a73105b8 | 155 | atomic_t tt_size; |
17071578 | 156 | bool tt_initialised; |
c6c8fea2 SE |
157 | uint32_t last_real_seqno; |
158 | uint8_t last_ttl; | |
42d0b044 | 159 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 160 | uint32_t last_bcast_seqno; |
9591a79f | 161 | struct hlist_head neigh_list; |
c6c8fea2 | 162 | struct list_head frag_list; |
88a32c9a ML |
163 | unsigned long last_frag_packet; |
164 | /* neigh_list_lock protects: neigh_list, router & bonding_list */ | |
165 | spinlock_t neigh_list_lock; | |
7aadf889 | 166 | struct hlist_node hash_entry; |
56303d34 | 167 | struct batadv_priv *bat_priv; |
6e215fd8 | 168 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, |
88a32c9a | 169 | * neigh_node->real_bits & neigh_node->real_packet_count |
9cfc7bd6 | 170 | */ |
6e215fd8 | 171 | spinlock_t ogm_cnt_lock; |
88a32c9a | 172 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 173 | spinlock_t bcast_seqno_lock; |
a4c135c5 SW |
174 | atomic_t bond_candidates; |
175 | struct list_head bond_list; | |
88a32c9a ML |
176 | atomic_t refcount; |
177 | struct rcu_head rcu; | |
d56b1705 MH |
178 | #ifdef CONFIG_BATMAN_ADV_NC |
179 | struct list_head in_coding_list; | |
180 | struct list_head out_coding_list; | |
181 | spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
182 | spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
183 | #endif | |
c6c8fea2 SE |
184 | }; |
185 | ||
88a32c9a ML |
186 | /** |
187 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
188 | * @list: list node for batadv_priv_gw::list | |
189 | * @orig_node: pointer to corresponding orig node | |
414254e3 ML |
190 | * @bandwidth_down: advertised uplink download bandwidth |
191 | * @bandwidth_up: advertised uplink upload bandwidth | |
88a32c9a ML |
192 | * @deleted: this struct is scheduled for deletion |
193 | * @refcount: number of contexts the object is used | |
194 | * @rcu: struct used for freeing in an RCU-safe manner | |
195 | */ | |
56303d34 | 196 | struct batadv_gw_node { |
c6c8fea2 | 197 | struct hlist_node list; |
56303d34 | 198 | struct batadv_orig_node *orig_node; |
414254e3 ML |
199 | uint32_t bandwidth_down; |
200 | uint32_t bandwidth_up; | |
c6c8fea2 | 201 | unsigned long deleted; |
25b6d3c1 | 202 | atomic_t refcount; |
c6c8fea2 SE |
203 | struct rcu_head rcu; |
204 | }; | |
205 | ||
88a32c9a ML |
206 | /** |
207 | * struct batadv_neigh_node - structure for single hop neighbors | |
208 | * @list: list node for batadv_orig_node::neigh_list | |
209 | * @addr: mac address of neigh node | |
210 | * @tq_recv: ring buffer of received TQ values from this neigh node | |
211 | * @tq_index: ring buffer index | |
212 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
213 | * @last_ttl: last received ttl from this neigh node | |
214 | * @bonding_list: list node for batadv_orig_node::bond_list | |
215 | * @last_seen: when last packet via this neighbor was received | |
216 | * @real_bits: bitfield containing the number of OGMs received from this neigh | |
217 | * node (relative to orig_node->last_real_seqno) | |
218 | * @real_packet_count: counted result of real_bits | |
219 | * @orig_node: pointer to corresponding orig_node | |
220 | * @if_incoming: pointer to incoming hard interface | |
221 | * @lq_update_lock: lock protecting tq_recv & tq_index | |
222 | * @refcount: number of contexts the object is used | |
223 | * @rcu: struct used for freeing in an RCU-safe manner | |
c6c8fea2 | 224 | */ |
56303d34 | 225 | struct batadv_neigh_node { |
9591a79f | 226 | struct hlist_node list; |
c6c8fea2 | 227 | uint8_t addr[ETH_ALEN]; |
42d0b044 | 228 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
c6c8fea2 SE |
229 | uint8_t tq_index; |
230 | uint8_t tq_avg; | |
231 | uint8_t last_ttl; | |
a4c135c5 | 232 | struct list_head bonding_list; |
d7b2a97e | 233 | unsigned long last_seen; |
42d0b044 | 234 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
88a32c9a | 235 | uint8_t real_packet_count; |
56303d34 SE |
236 | struct batadv_orig_node *orig_node; |
237 | struct batadv_hard_iface *if_incoming; | |
88a32c9a ML |
238 | spinlock_t lq_update_lock; /* protects tq_recv & tq_index */ |
239 | atomic_t refcount; | |
240 | struct rcu_head rcu; | |
c6c8fea2 SE |
241 | }; |
242 | ||
88a32c9a ML |
243 | /** |
244 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
245 | * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast | |
246 | * @crc: crc32 checksum of broadcast payload | |
247 | * @entrytime: time when the broadcast packet was received | |
248 | */ | |
7a5cc242 | 249 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 250 | struct batadv_bcast_duplist_entry { |
fe2da6ff | 251 | uint8_t orig[ETH_ALEN]; |
004e86fc | 252 | __be32 crc; |
fe2da6ff SW |
253 | unsigned long entrytime; |
254 | }; | |
7a5cc242 | 255 | #endif |
c6c8fea2 | 256 | |
88a32c9a ML |
257 | /** |
258 | * enum batadv_counters - indices for traffic counters | |
259 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
260 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
261 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
262 | * @BATADV_CNT_RX: received payload traffic packet counter | |
263 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
264 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
265 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
266 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
267 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
268 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
269 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
270 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter | |
271 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
272 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
273 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
274 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
275 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
276 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
277 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
278 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
279 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
280 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
281 | * counter | |
3c12de9a MH |
282 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter |
283 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
284 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
285 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
612d2b4f | 286 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding |
2df5278b MH |
287 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter |
288 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
289 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
290 | * counter | |
291 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
292 | * mode. | |
88a32c9a ML |
293 | * @BATADV_CNT_NUM: number of traffic counters |
294 | */ | |
d69909d2 | 295 | enum batadv_counters { |
1c9b0550 ML |
296 | BATADV_CNT_TX, |
297 | BATADV_CNT_TX_BYTES, | |
298 | BATADV_CNT_TX_DROPPED, | |
299 | BATADV_CNT_RX, | |
300 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
301 | BATADV_CNT_FORWARD, |
302 | BATADV_CNT_FORWARD_BYTES, | |
303 | BATADV_CNT_MGMT_TX, | |
304 | BATADV_CNT_MGMT_TX_BYTES, | |
305 | BATADV_CNT_MGMT_RX, | |
306 | BATADV_CNT_MGMT_RX_BYTES, | |
307 | BATADV_CNT_TT_REQUEST_TX, | |
308 | BATADV_CNT_TT_REQUEST_RX, | |
309 | BATADV_CNT_TT_RESPONSE_TX, | |
310 | BATADV_CNT_TT_RESPONSE_RX, | |
311 | BATADV_CNT_TT_ROAM_ADV_TX, | |
312 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
313 | #ifdef CONFIG_BATMAN_ADV_DAT |
314 | BATADV_CNT_DAT_GET_TX, | |
315 | BATADV_CNT_DAT_GET_RX, | |
316 | BATADV_CNT_DAT_PUT_TX, | |
317 | BATADV_CNT_DAT_PUT_RX, | |
318 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
3c12de9a MH |
319 | #endif |
320 | #ifdef CONFIG_BATMAN_ADV_NC | |
321 | BATADV_CNT_NC_CODE, | |
322 | BATADV_CNT_NC_CODE_BYTES, | |
323 | BATADV_CNT_NC_RECODE, | |
324 | BATADV_CNT_NC_RECODE_BYTES, | |
612d2b4f | 325 | BATADV_CNT_NC_BUFFER, |
2df5278b MH |
326 | BATADV_CNT_NC_DECODE, |
327 | BATADV_CNT_NC_DECODE_BYTES, | |
328 | BATADV_CNT_NC_DECODE_FAILED, | |
329 | BATADV_CNT_NC_SNIFFED, | |
4046b24a | 330 | #endif |
d69909d2 | 331 | BATADV_CNT_NUM, |
f8214865 MH |
332 | }; |
333 | ||
807736f6 SE |
334 | /** |
335 | * struct batadv_priv_tt - per mesh interface translation table data | |
336 | * @vn: translation table version number | |
88a32c9a | 337 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 338 | * @local_changes: changes registered in an originator interval |
807736f6 | 339 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
340 | * @local_hash: local translation table hash table |
341 | * @global_hash: global translation table hash table | |
342 | * @req_list: list of pending & unanswered tt_requests | |
343 | * @roam_list: list of the last roaming events of each client limiting the | |
344 | * number of roaming events to avoid route flapping | |
345 | * @changes_list_lock: lock protecting changes_list | |
346 | * @req_list_lock: lock protecting req_list | |
347 | * @roam_list_lock: lock protecting roam_list | |
348 | * @local_entry_num: number of entries in the local hash table | |
807736f6 | 349 | * @local_crc: Checksum of the local table, recomputed before sending a new OGM |
88a32c9a ML |
350 | * @last_changeset: last tt changeset this host has generated |
351 | * @last_changeset_len: length of last tt changeset this host has generated | |
352 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
353 | * @work: work queue callback item for translation table purging | |
807736f6 SE |
354 | */ |
355 | struct batadv_priv_tt { | |
356 | atomic_t vn; | |
357 | atomic_t ogm_append_cnt; | |
358 | atomic_t local_changes; | |
807736f6 SE |
359 | struct list_head changes_list; |
360 | struct batadv_hashtable *local_hash; | |
361 | struct batadv_hashtable *global_hash; | |
362 | struct list_head req_list; | |
363 | struct list_head roam_list; | |
364 | spinlock_t changes_list_lock; /* protects changes */ | |
365 | spinlock_t req_list_lock; /* protects req_list */ | |
366 | spinlock_t roam_list_lock; /* protects roam_list */ | |
367 | atomic_t local_entry_num; | |
368 | uint16_t local_crc; | |
369 | unsigned char *last_changeset; | |
370 | int16_t last_changeset_len; | |
88a32c9a ML |
371 | /* protects last_changeset & last_changeset_len */ |
372 | spinlock_t last_changeset_lock; | |
807736f6 SE |
373 | struct delayed_work work; |
374 | }; | |
375 | ||
88a32c9a ML |
376 | /** |
377 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
378 | * @num_requests; number of bla requests in flight | |
379 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
380 | * @backbone_hash: hash table containing all detected backbone gateways | |
381 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
382 | * duplicate suppression) | |
383 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
384 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
385 | * @claim_dest: local claim data (e.g. claim group) | |
386 | * @work: work queue callback item for cleanups & bla announcements | |
387 | */ | |
807736f6 SE |
388 | #ifdef CONFIG_BATMAN_ADV_BLA |
389 | struct batadv_priv_bla { | |
88a32c9a | 390 | atomic_t num_requests; |
807736f6 SE |
391 | struct batadv_hashtable *claim_hash; |
392 | struct batadv_hashtable *backbone_hash; | |
393 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
394 | int bcast_duplist_curr; | |
88a32c9a | 395 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 396 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
397 | struct batadv_bla_claim_dst claim_dest; |
398 | struct delayed_work work; | |
399 | }; | |
400 | #endif | |
401 | ||
88a32c9a ML |
402 | /** |
403 | * struct batadv_debug_log - debug logging data | |
404 | * @log_buff: buffer holding the logs (ring bufer) | |
405 | * @log_start: index of next character to read | |
406 | * @log_end: index of next character to write | |
407 | * @lock: lock protecting log_buff, log_start & log_end | |
408 | * @queue_wait: log reader's wait queue | |
409 | */ | |
0abf5d81 ML |
410 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
411 | struct batadv_priv_debug_log { | |
412 | char log_buff[BATADV_LOG_BUF_LEN]; | |
413 | unsigned long log_start; | |
414 | unsigned long log_end; | |
415 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
416 | wait_queue_head_t queue_wait; | |
417 | }; | |
418 | #endif | |
419 | ||
88a32c9a ML |
420 | /** |
421 | * struct batadv_priv_gw - per mesh interface gateway data | |
422 | * @list: list of available gateway nodes | |
423 | * @list_lock: lock protecting gw_list & curr_gw | |
424 | * @curr_gw: pointer to currently selected gateway node | |
414254e3 ML |
425 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) |
426 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
88a32c9a ML |
427 | * @reselect: bool indicating a gateway re-selection is in progress |
428 | */ | |
807736f6 SE |
429 | struct batadv_priv_gw { |
430 | struct hlist_head list; | |
88a32c9a | 431 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 | 432 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
414254e3 ML |
433 | atomic_t bandwidth_down; |
434 | atomic_t bandwidth_up; | |
807736f6 SE |
435 | atomic_t reselect; |
436 | }; | |
437 | ||
ef261577 ML |
438 | /** |
439 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
440 | * @container_list: list of registered tvlv containers to be sent with each OGM | |
441 | * @handler_list: list of the various tvlv content handlers | |
442 | * @container_list_lock: protects tvlv container list access | |
443 | * @handler_list_lock: protects handler list access | |
444 | */ | |
445 | struct batadv_priv_tvlv { | |
446 | struct hlist_head container_list; | |
447 | struct hlist_head handler_list; | |
448 | spinlock_t container_list_lock; /* protects container_list */ | |
449 | spinlock_t handler_list_lock; /* protects handler_list */ | |
450 | }; | |
451 | ||
88a32c9a ML |
452 | /** |
453 | * struct batadv_priv_vis - per mesh interface vis data | |
454 | * @send_list: list of batadv_vis_info packets to sent | |
455 | * @hash: hash table containing vis data from other nodes in the network | |
456 | * @hash_lock: lock protecting the hash table | |
457 | * @list_lock: lock protecting my_info::recv_list | |
458 | * @work: work queue callback item for vis packet sending | |
459 | * @my_info: holds this node's vis data sent on a regular basis | |
460 | */ | |
807736f6 SE |
461 | struct batadv_priv_vis { |
462 | struct list_head send_list; | |
463 | struct batadv_hashtable *hash; | |
464 | spinlock_t hash_lock; /* protects hash */ | |
88a32c9a | 465 | spinlock_t list_lock; /* protects my_info::recv_list */ |
807736f6 SE |
466 | struct delayed_work work; |
467 | struct batadv_vis_info *my_info; | |
468 | }; | |
469 | ||
785ea114 AQ |
470 | /** |
471 | * struct batadv_priv_dat - per mesh interface DAT private data | |
472 | * @addr: node DAT address | |
2f1dfbe1 AQ |
473 | * @hash: hashtable representing the local ARP cache |
474 | * @work: work queue callback item for cache purging | |
785ea114 | 475 | */ |
17224474 | 476 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 AQ |
477 | struct batadv_priv_dat { |
478 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
479 | struct batadv_hashtable *hash; |
480 | struct delayed_work work; | |
785ea114 | 481 | }; |
17224474 | 482 | #endif |
785ea114 | 483 | |
d353d8d4 MH |
484 | /** |
485 | * struct batadv_priv_nc - per mesh interface network coding private data | |
486 | * @work: work queue callback item for cleanup | |
d56b1705 MH |
487 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
488 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
95332477 | 489 | * @max_fwd_delay: maximum packet forward delay to allow coding of packets |
612d2b4f | 490 | * @max_buffer_time: buffer time for sniffed packets used to decoding |
95332477 | 491 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush |
612d2b4f | 492 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge |
95332477 MH |
493 | * @coding_hash: Hash table used to buffer skbs while waiting for another |
494 | * incoming skb to code it with. Skbs are added to the buffer just before being | |
495 | * forwarded in routing.c | |
612d2b4f MH |
496 | * @decoding_hash: Hash table used to buffer skbs that might be needed to decode |
497 | * a received coded skb. The buffer is used for 1) skbs arriving on the | |
498 | * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
499 | * forwarded by batman-adv. | |
d353d8d4 MH |
500 | */ |
501 | struct batadv_priv_nc { | |
502 | struct delayed_work work; | |
d56b1705 MH |
503 | struct dentry *debug_dir; |
504 | u8 min_tq; | |
95332477 | 505 | u32 max_fwd_delay; |
612d2b4f | 506 | u32 max_buffer_time; |
95332477 | 507 | unsigned long timestamp_fwd_flush; |
612d2b4f | 508 | unsigned long timestamp_sniffed_purge; |
95332477 | 509 | struct batadv_hashtable *coding_hash; |
612d2b4f | 510 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
511 | }; |
512 | ||
88a32c9a ML |
513 | /** |
514 | * struct batadv_priv - per mesh interface data | |
515 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 516 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
517 | * @stats: structure holding the data for the ndo_get_stats() call |
518 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
519 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
520 | * @bonding: bool indicating whether traffic bonding is enabled | |
521 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
522 | * @ap_isolation: bool indicating whether ap isolation is enabled | |
523 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is | |
524 | * enabled | |
525 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
526 | * enabled | |
527 | * @vis_mode: vis operation: client or server (see batadv_vis_packettype) | |
528 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) | |
529 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
88a32c9a ML |
530 | * @orig_interval: OGM broadcast interval in milliseconds |
531 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
532 | * @log_level: configured log level (see batadv_dbg_level) | |
533 | * @bcast_seqno: last sent broadcast packet sequence number | |
534 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
535 | * @batman_queue_left: number of remaining OGM packet slots | |
536 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
537 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
538 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
539 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
540 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
541 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
542 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
543 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
544 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 545 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
546 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
547 | * becomes the primary interface | |
548 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
549 | * @bla: bridge loope avoidance data | |
550 | * @debug_log: holding debug logging relevant data | |
551 | * @gw: gateway data | |
552 | * @tt: translation table data | |
ef261577 | 553 | * @tvlv: type-version-length-value data |
88a32c9a ML |
554 | * @vis: vis data |
555 | * @dat: distributed arp table data | |
d353d8d4 MH |
556 | * @network_coding: bool indicating whether network coding is enabled |
557 | * @batadv_priv_nc: network coding data | |
88a32c9a | 558 | */ |
56303d34 | 559 | struct batadv_priv { |
c6c8fea2 | 560 | atomic_t mesh_state; |
5bc44dc8 | 561 | struct net_device *soft_iface; |
c6c8fea2 | 562 | struct net_device_stats stats; |
f8214865 | 563 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
564 | atomic_t aggregated_ogms; |
565 | atomic_t bonding; | |
566 | atomic_t fragmentation; | |
567 | atomic_t ap_isolation; | |
fa706554 | 568 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 569 | atomic_t bridge_loop_avoidance; |
fa706554 | 570 | #endif |
33af49ad | 571 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 572 | atomic_t distributed_arp_table; |
33af49ad | 573 | #endif |
88a32c9a ML |
574 | atomic_t vis_mode; |
575 | atomic_t gw_mode; | |
576 | atomic_t gw_sel_class; | |
88a32c9a ML |
577 | atomic_t orig_interval; |
578 | atomic_t hop_penalty; | |
0c430d0d | 579 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 580 | atomic_t log_level; |
0c430d0d | 581 | #endif |
c6c8fea2 SE |
582 | atomic_t bcast_seqno; |
583 | atomic_t bcast_queue_left; | |
584 | atomic_t batman_queue_left; | |
585 | char num_ifaces; | |
c6c8fea2 SE |
586 | struct kobject *mesh_obj; |
587 | struct dentry *debug_dir; | |
588 | struct hlist_head forw_bat_list; | |
589 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 590 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 591 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 592 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 593 | struct delayed_work orig_work; |
5bc44dc8 | 594 | struct work_struct cleanup_work; |
56303d34 | 595 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 596 | struct batadv_algo_ops *bat_algo_ops; |
807736f6 SE |
597 | #ifdef CONFIG_BATMAN_ADV_BLA |
598 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
599 | #endif |
600 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
601 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
602 | #endif |
603 | struct batadv_priv_gw gw; | |
604 | struct batadv_priv_tt tt; | |
ef261577 | 605 | struct batadv_priv_tvlv tvlv; |
807736f6 | 606 | struct batadv_priv_vis vis; |
17224474 | 607 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 608 | struct batadv_priv_dat dat; |
17224474 | 609 | #endif |
d353d8d4 MH |
610 | #ifdef CONFIG_BATMAN_ADV_NC |
611 | atomic_t network_coding; | |
612 | struct batadv_priv_nc nc; | |
613 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
614 | }; |
615 | ||
88a32c9a ML |
616 | /** |
617 | * struct batadv_socket_client - layer2 icmp socket client data | |
618 | * @queue_list: packet queue for packets destined for this socket client | |
619 | * @queue_len: number of packets in the packet queue (queue_list) | |
620 | * @index: socket client's index in the batadv_socket_client_hash | |
621 | * @lock: lock protecting queue_list, queue_len & index | |
622 | * @queue_wait: socket client's wait queue | |
623 | * @bat_priv: pointer to soft_iface this client belongs to | |
624 | */ | |
56303d34 | 625 | struct batadv_socket_client { |
c6c8fea2 SE |
626 | struct list_head queue_list; |
627 | unsigned int queue_len; | |
628 | unsigned char index; | |
88a32c9a | 629 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 630 | wait_queue_head_t queue_wait; |
56303d34 | 631 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
632 | }; |
633 | ||
88a32c9a ML |
634 | /** |
635 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
636 | * @list: list node for batadv_socket_client::queue_list | |
637 | * @icmp_len: size of the layer2 icmp packet | |
638 | * @icmp_packet: layer2 icmp packet | |
639 | */ | |
56303d34 | 640 | struct batadv_socket_packet { |
c6c8fea2 SE |
641 | struct list_head list; |
642 | size_t icmp_len; | |
96412690 | 643 | struct batadv_icmp_packet_rr icmp_packet; |
c6c8fea2 SE |
644 | }; |
645 | ||
88a32c9a ML |
646 | /** |
647 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
648 | * @orig: originator address of backbone node (mac address of primary iface) | |
649 | * @vid: vlan id this gateway was detected on | |
650 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
651 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
652 | * @lasttime: last time we heard of this backbone gw | |
653 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
654 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
655 | * @request_sent: if this bool is set to true we are out of sync with this | |
656 | * backbone gateway - no bcast traffic is formwared until the situation was | |
657 | * resolved | |
658 | * @crc: crc16 checksum over all claims | |
659 | * @refcount: number of contexts the object is used | |
660 | * @rcu: struct used for freeing in an RCU-safe manner | |
661 | */ | |
2006fea8 | 662 | #ifdef CONFIG_BATMAN_ADV_BLA |
bae98774 | 663 | struct batadv_bla_backbone_gw { |
2006fea8 | 664 | uint8_t orig[ETH_ALEN]; |
eb2deb6b | 665 | unsigned short vid; |
2006fea8 ML |
666 | struct hlist_node hash_entry; |
667 | struct batadv_priv *bat_priv; | |
88a32c9a | 668 | unsigned long lasttime; |
2006fea8 ML |
669 | atomic_t wait_periods; |
670 | atomic_t request_sent; | |
88a32c9a | 671 | uint16_t crc; |
2006fea8 ML |
672 | atomic_t refcount; |
673 | struct rcu_head rcu; | |
2006fea8 ML |
674 | }; |
675 | ||
88a32c9a ML |
676 | /** |
677 | * struct batadv_bla_claim - claimed non-mesh client structure | |
678 | * @addr: mac address of claimed non-mesh client | |
679 | * @vid: vlan id this client was detected on | |
680 | * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client | |
681 | * @lasttime: last time we heard of claim (locals only) | |
682 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
683 | * @refcount: number of contexts the object is used | |
684 | * @rcu: struct used for freeing in an RCU-safe manner | |
685 | */ | |
712bbfe4 | 686 | struct batadv_bla_claim { |
2006fea8 | 687 | uint8_t addr[ETH_ALEN]; |
eb2deb6b | 688 | unsigned short vid; |
bae98774 | 689 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
690 | unsigned long lasttime; |
691 | struct hlist_node hash_entry; | |
2006fea8 ML |
692 | struct rcu_head rcu; |
693 | atomic_t refcount; | |
2006fea8 ML |
694 | }; |
695 | #endif | |
696 | ||
88a32c9a ML |
697 | /** |
698 | * struct batadv_tt_common_entry - tt local & tt global common data | |
699 | * @addr: mac address of non-mesh client | |
700 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for | |
701 | * batadv_priv_tt::global_hash | |
702 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
703 | * @added_at: timestamp used for purging stale tt common entries | |
704 | * @refcount: number of contexts the object is used | |
705 | * @rcu: struct used for freeing in an RCU-safe manner | |
706 | */ | |
56303d34 | 707 | struct batadv_tt_common_entry { |
c6c8fea2 | 708 | uint8_t addr[ETH_ALEN]; |
93840ac4 | 709 | struct hlist_node hash_entry; |
5fbc1598 | 710 | uint16_t flags; |
30cfd02b | 711 | unsigned long added_at; |
7683fdc1 AQ |
712 | atomic_t refcount; |
713 | struct rcu_head rcu; | |
c6c8fea2 SE |
714 | }; |
715 | ||
88a32c9a ML |
716 | /** |
717 | * struct batadv_tt_local_entry - translation table local entry data | |
718 | * @common: general translation table data | |
719 | * @last_seen: timestamp used for purging stale tt local entries | |
720 | */ | |
56303d34 SE |
721 | struct batadv_tt_local_entry { |
722 | struct batadv_tt_common_entry common; | |
48100bac AQ |
723 | unsigned long last_seen; |
724 | }; | |
725 | ||
88a32c9a ML |
726 | /** |
727 | * struct batadv_tt_global_entry - translation table global entry data | |
728 | * @common: general translation table data | |
729 | * @orig_list: list of orig nodes announcing this non-mesh client | |
730 | * @list_lock: lock protecting orig_list | |
731 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
732 | */ | |
56303d34 SE |
733 | struct batadv_tt_global_entry { |
734 | struct batadv_tt_common_entry common; | |
db08e6e5 | 735 | struct hlist_head orig_list; |
88a32c9a ML |
736 | spinlock_t list_lock; /* protects orig_list */ |
737 | unsigned long roam_at; | |
db08e6e5 SW |
738 | }; |
739 | ||
88a32c9a ML |
740 | /** |
741 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
742 | * @orig_node: pointer to orig node announcing this non-mesh client | |
743 | * @ttvn: translation table version number which added the non-mesh client | |
744 | * @list: list node for batadv_tt_global_entry::orig_list | |
745 | * @refcount: number of contexts the object is used | |
746 | * @rcu: struct used for freeing in an RCU-safe manner | |
747 | */ | |
56303d34 SE |
748 | struct batadv_tt_orig_list_entry { |
749 | struct batadv_orig_node *orig_node; | |
a73105b8 | 750 | uint8_t ttvn; |
88a32c9a | 751 | struct hlist_node list; |
d657e621 | 752 | atomic_t refcount; |
db08e6e5 | 753 | struct rcu_head rcu; |
c6c8fea2 SE |
754 | }; |
755 | ||
88a32c9a ML |
756 | /** |
757 | * struct batadv_tt_change_node - structure for tt changes occured | |
758 | * @list: list node for batadv_priv_tt::changes_list | |
759 | * @change: holds the actual translation table diff data | |
760 | */ | |
56303d34 | 761 | struct batadv_tt_change_node { |
a73105b8 | 762 | struct list_head list; |
96412690 | 763 | struct batadv_tt_change change; |
a73105b8 AQ |
764 | }; |
765 | ||
88a32c9a ML |
766 | /** |
767 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
768 | * @addr: mac address address of the originator this request was sent to | |
769 | * @issued_at: timestamp used for purging stale tt requests | |
770 | * @list: list node for batadv_priv_tt::req_list | |
771 | */ | |
56303d34 | 772 | struct batadv_tt_req_node { |
a73105b8 AQ |
773 | uint8_t addr[ETH_ALEN]; |
774 | unsigned long issued_at; | |
775 | struct list_head list; | |
776 | }; | |
777 | ||
88a32c9a ML |
778 | /** |
779 | * struct batadv_tt_roam_node - roaming client data | |
780 | * @addr: mac address of the client in the roaming phase | |
781 | * @counter: number of allowed roaming events per client within a single | |
782 | * OGM interval (changes are committed with each OGM) | |
783 | * @first_time: timestamp used for purging stale roaming node entries | |
784 | * @list: list node for batadv_priv_tt::roam_list | |
785 | */ | |
56303d34 | 786 | struct batadv_tt_roam_node { |
cc47f66e AQ |
787 | uint8_t addr[ETH_ALEN]; |
788 | atomic_t counter; | |
789 | unsigned long first_time; | |
790 | struct list_head list; | |
791 | }; | |
792 | ||
d56b1705 MH |
793 | /** |
794 | * struct batadv_nc_node - network coding node | |
795 | * @list: next and prev pointer for the list handling | |
796 | * @addr: the node's mac address | |
797 | * @refcount: number of contexts the object is used by | |
798 | * @rcu: struct used for freeing in an RCU-safe manner | |
799 | * @orig_node: pointer to corresponding orig node struct | |
800 | * @last_seen: timestamp of last ogm received from this node | |
801 | */ | |
802 | struct batadv_nc_node { | |
803 | struct list_head list; | |
804 | uint8_t addr[ETH_ALEN]; | |
805 | atomic_t refcount; | |
806 | struct rcu_head rcu; | |
807 | struct batadv_orig_node *orig_node; | |
808 | unsigned long last_seen; | |
809 | }; | |
810 | ||
95332477 MH |
811 | /** |
812 | * struct batadv_nc_path - network coding path | |
813 | * @hash_entry: next and prev pointer for the list handling | |
814 | * @rcu: struct used for freeing in an RCU-safe manner | |
815 | * @refcount: number of contexts the object is used by | |
816 | * @packet_list: list of buffered packets for this path | |
817 | * @packet_list_lock: access lock for packet list | |
818 | * @next_hop: next hop (destination) of path | |
819 | * @prev_hop: previous hop (source) of path | |
820 | * @last_valid: timestamp for last validation of path | |
821 | */ | |
822 | struct batadv_nc_path { | |
823 | struct hlist_node hash_entry; | |
824 | struct rcu_head rcu; | |
825 | atomic_t refcount; | |
826 | struct list_head packet_list; | |
827 | spinlock_t packet_list_lock; /* Protects packet_list */ | |
828 | uint8_t next_hop[ETH_ALEN]; | |
829 | uint8_t prev_hop[ETH_ALEN]; | |
830 | unsigned long last_valid; | |
831 | }; | |
832 | ||
833 | /** | |
834 | * struct batadv_nc_packet - network coding packet used when coding and | |
835 | * decoding packets | |
836 | * @list: next and prev pointer for the list handling | |
837 | * @packet_id: crc32 checksum of skb data | |
838 | * @timestamp: field containing the info when the packet was added to path | |
839 | * @neigh_node: pointer to original next hop neighbor of skb | |
840 | * @skb: skb which can be encoded or used for decoding | |
841 | * @nc_path: pointer to path this nc packet is attached to | |
842 | */ | |
843 | struct batadv_nc_packet { | |
844 | struct list_head list; | |
845 | __be32 packet_id; | |
846 | unsigned long timestamp; | |
847 | struct batadv_neigh_node *neigh_node; | |
848 | struct sk_buff *skb; | |
849 | struct batadv_nc_path *nc_path; | |
850 | }; | |
851 | ||
3c12de9a MH |
852 | /** |
853 | * batadv_skb_cb - control buffer structure used to store private data relevant | |
854 | * to batman-adv in the skb->cb buffer in skbs. | |
855 | * @decoded: Marks a skb as decoded, which is checked when searching for coding | |
856 | * opportunities in network-coding.c | |
857 | */ | |
858 | struct batadv_skb_cb { | |
859 | bool decoded; | |
860 | }; | |
861 | ||
88a32c9a ML |
862 | /** |
863 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
864 | * @list: list node for batadv_socket_client::queue_list | |
865 | * @send_time: execution time for delayed_work (packet sending) | |
866 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
867 | * sending) | |
868 | * @skb: bcast packet's skb buffer | |
869 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
870 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
871 | * @num_packets: counter for bcast packet retransmission | |
872 | * @delayed_work: work queue callback item for packet sending | |
873 | * @if_incoming: pointer incoming hard-iface or primary iface if locally | |
874 | * generated packet | |
c6c8fea2 | 875 | */ |
56303d34 | 876 | struct batadv_forw_packet { |
c6c8fea2 SE |
877 | struct hlist_node list; |
878 | unsigned long send_time; | |
879 | uint8_t own; | |
880 | struct sk_buff *skb; | |
881 | uint16_t packet_len; | |
882 | uint32_t direct_link_flags; | |
883 | uint8_t num_packets; | |
884 | struct delayed_work delayed_work; | |
56303d34 | 885 | struct batadv_hard_iface *if_incoming; |
c6c8fea2 SE |
886 | }; |
887 | ||
88a32c9a ML |
888 | /** |
889 | * struct batadv_frag_packet_list_entry - storage for fragment packet | |
890 | * @list: list node for orig_node::frag_list | |
891 | * @seqno: sequence number of the fragment | |
892 | * @skb: fragment's skb buffer | |
893 | */ | |
56303d34 | 894 | struct batadv_frag_packet_list_entry { |
c6c8fea2 SE |
895 | struct list_head list; |
896 | uint16_t seqno; | |
897 | struct sk_buff *skb; | |
898 | }; | |
899 | ||
88a32c9a ML |
900 | /** |
901 | * struct batadv_vis_info - local data for vis information | |
902 | * @first_seen: timestamp used for purging stale vis info entries | |
903 | * @recv_list: List of server-neighbors we have received this packet from. This | |
904 | * packet should not be re-forward to them again. List elements are struct | |
905 | * batadv_vis_recvlist_node | |
906 | * @send_list: list of packets to be forwarded | |
907 | * @refcount: number of contexts the object is used | |
908 | * @hash_entry: hlist node for batadv_priv_vis::hash | |
909 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
910 | * @skb_packet: contains the vis packet | |
911 | */ | |
56303d34 | 912 | struct batadv_vis_info { |
40219672 | 913 | unsigned long first_seen; |
40219672 | 914 | struct list_head recv_list; |
c6c8fea2 SE |
915 | struct list_head send_list; |
916 | struct kref refcount; | |
7aadf889 | 917 | struct hlist_node hash_entry; |
56303d34 | 918 | struct batadv_priv *bat_priv; |
c6c8fea2 | 919 | struct sk_buff *skb_packet; |
aa0adb1a | 920 | } __packed; |
c6c8fea2 | 921 | |
88a32c9a ML |
922 | /** |
923 | * struct batadv_vis_info_entry - contains link information for vis | |
924 | * @src: source MAC of the link, all zero for local TT entry | |
925 | * @dst: destination MAC of the link, client mac address for local TT entry | |
926 | * @quality: transmission quality of the link, or 0 for local TT entry | |
927 | */ | |
56303d34 | 928 | struct batadv_vis_info_entry { |
c6c8fea2 SE |
929 | uint8_t src[ETH_ALEN]; |
930 | uint8_t dest[ETH_ALEN]; | |
88a32c9a | 931 | uint8_t quality; |
aa0adb1a | 932 | } __packed; |
c6c8fea2 | 933 | |
88a32c9a ML |
934 | /** |
935 | * struct batadv_vis_recvlist_node - list entry for batadv_vis_info::recv_list | |
936 | * @list: list node for batadv_vis_info::recv_list | |
937 | * @mac: MAC address of the originator from where the vis_info was received | |
938 | */ | |
28500f07 | 939 | struct batadv_vis_recvlist_node { |
c6c8fea2 SE |
940 | struct list_head list; |
941 | uint8_t mac[ETH_ALEN]; | |
942 | }; | |
943 | ||
88a32c9a ML |
944 | /** |
945 | * struct batadv_vis_if_list_entry - auxiliary data for vis data generation | |
946 | * @addr: MAC address of the interface | |
947 | * @primary: true if this interface is the primary interface | |
948 | * @list: list node the interface list | |
949 | * | |
950 | * While scanning for vis-entries of a particular vis-originator | |
015b4ae4 ML |
951 | * this list collects its interfaces to create a subgraph/cluster |
952 | * out of them later | |
953 | */ | |
954 | struct batadv_vis_if_list_entry { | |
955 | uint8_t addr[ETH_ALEN]; | |
956 | bool primary; | |
957 | struct hlist_node list; | |
958 | }; | |
959 | ||
88a32c9a ML |
960 | /** |
961 | * struct batadv_algo_ops - mesh algorithm callbacks | |
962 | * @list: list node for the batadv_algo_list | |
963 | * @name: name of the algorithm | |
964 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
965 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
966 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
967 | * belonging to this hard-interface | |
968 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
969 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
970 | * @bat_ogm_emit: send scheduled OGM | |
971 | */ | |
56303d34 | 972 | struct batadv_algo_ops { |
1c280471 ML |
973 | struct hlist_node list; |
974 | char *name; | |
56303d34 | 975 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 976 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 977 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 978 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 979 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 980 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
1c280471 ML |
981 | }; |
982 | ||
2f1dfbe1 AQ |
983 | /** |
984 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
985 | * is used to stored ARP entries needed for the global DAT cache | |
986 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
987 | * @mac_addr: the MAC address associated to the stored IPv4 | |
988 | * @last_update: time in jiffies when this entry was refreshed last time | |
989 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
990 | * @refcount: number of contexts the object is used | |
991 | * @rcu: struct used for freeing in an RCU-safe manner | |
992 | */ | |
993 | struct batadv_dat_entry { | |
994 | __be32 ip; | |
995 | uint8_t mac_addr[ETH_ALEN]; | |
996 | unsigned long last_update; | |
997 | struct hlist_node hash_entry; | |
998 | atomic_t refcount; | |
999 | struct rcu_head rcu; | |
1000 | }; | |
1001 | ||
785ea114 AQ |
1002 | /** |
1003 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
1004 | * @type: the type of the selected candidate. It can one of the following: | |
1005 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
1006 | * - BATADV_DAT_CANDIDATE_ORIG | |
1007 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
1008 | * corresponding originator node structure | |
1009 | */ | |
1010 | struct batadv_dat_candidate { | |
1011 | int type; | |
1012 | struct batadv_orig_node *orig_node; | |
1013 | }; | |
1014 | ||
ef261577 ML |
1015 | /** |
1016 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
1017 | * @list: hlist node for batadv_priv_tvlv::container_list | |
1018 | * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
1019 | * @value_len: length of the buffer following this struct which contains | |
1020 | * the actual tvlv payload | |
1021 | * @refcount: number of contexts the object is used | |
1022 | */ | |
1023 | struct batadv_tvlv_container { | |
1024 | struct hlist_node list; | |
1025 | struct batadv_tvlv_hdr tvlv_hdr; | |
1026 | atomic_t refcount; | |
1027 | }; | |
1028 | ||
1029 | /** | |
1030 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
1031 | * @list: hlist node for batadv_priv_tvlv::handler_list | |
1032 | * @ogm_handler: handler callback which is given the tvlv payload to process on | |
1033 | * incoming OGM packets | |
1034 | * @unicast_handler: handler callback which is given the tvlv payload to process | |
1035 | * on incoming unicast tvlv packets | |
1036 | * @type: tvlv type this handler feels responsible for | |
1037 | * @version: tvlv version this handler feels responsible for | |
1038 | * @flags: tvlv handler flags | |
1039 | * @refcount: number of contexts the object is used | |
1040 | * @rcu: struct used for freeing in an RCU-safe manner | |
1041 | */ | |
1042 | struct batadv_tvlv_handler { | |
1043 | struct hlist_node list; | |
1044 | void (*ogm_handler)(struct batadv_priv *bat_priv, | |
1045 | struct batadv_orig_node *orig, | |
1046 | uint8_t flags, | |
1047 | void *tvlv_value, uint16_t tvlv_value_len); | |
1048 | int (*unicast_handler)(struct batadv_priv *bat_priv, | |
1049 | uint8_t *src, uint8_t *dst, | |
1050 | void *tvlv_value, uint16_t tvlv_value_len); | |
1051 | uint8_t type; | |
1052 | uint8_t version; | |
1053 | uint8_t flags; | |
1054 | atomic_t refcount; | |
1055 | struct rcu_head rcu; | |
1056 | }; | |
1057 | ||
1058 | /** | |
1059 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
1060 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
1061 | * this handler even if its type was not found (with no data) | |
1062 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
1063 | * a handler as being called, so it won't be called if the | |
1064 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
1065 | */ | |
1066 | enum batadv_tvlv_handler_flags { | |
1067 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
1068 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
1069 | }; | |
1070 | ||
c6c8fea2 | 1071 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |