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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 | |
17224474 AQ |
27 | #ifdef CONFIG_BATMAN_ADV_DAT |
28 | ||
785ea114 AQ |
29 | /* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed, |
30 | * BATADV_DAT_ADDR_MAX is changed as well. | |
31 | * | |
32 | * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
33 | */ | |
34 | #define batadv_dat_addr_t uint16_t | |
35 | ||
17224474 AQ |
36 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
37 | ||
14511519 ML |
38 | /** |
39 | * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data | |
40 | * @ogm_buff: buffer holding the OGM packet | |
41 | * @ogm_buff_len: length of the OGM packet buffer | |
42 | * @ogm_seqno: OGM sequence number - used to identify each OGM | |
43 | */ | |
44 | struct batadv_hard_iface_bat_iv { | |
45 | unsigned char *ogm_buff; | |
46 | int ogm_buff_len; | |
47 | atomic_t ogm_seqno; | |
48 | }; | |
49 | ||
88a32c9a ML |
50 | /** |
51 | * struct batadv_hard_iface - network device known to batman-adv | |
52 | * @list: list node for batadv_hardif_list | |
53 | * @if_num: identificator of the interface | |
54 | * @if_status: status of the interface for batman-adv | |
55 | * @net_dev: pointer to the net_device | |
caf65bfc | 56 | * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) |
88a32c9a ML |
57 | * @hardif_obj: kobject of the per interface sysfs "mesh" directory |
58 | * @refcount: number of contexts the object is used | |
59 | * @batman_adv_ptype: packet type describing packets that should be processed by | |
60 | * batman-adv for this interface | |
61 | * @soft_iface: the batman-adv interface which uses this network interface | |
62 | * @rcu: struct used for freeing in an RCU-safe manner | |
63 | * @bat_iv: BATMAN IV specific per hard interface data | |
5bc44dc8 | 64 | * @cleanup_work: work queue callback item for hard interface deinit |
88a32c9a | 65 | */ |
56303d34 | 66 | struct batadv_hard_iface { |
c6c8fea2 SE |
67 | struct list_head list; |
68 | int16_t if_num; | |
69 | char if_status; | |
70 | struct net_device *net_dev; | |
caf65bfc | 71 | uint8_t num_bcasts; |
c6c8fea2 | 72 | struct kobject *hardif_obj; |
ed75ccbe | 73 | atomic_t refcount; |
c6c8fea2 SE |
74 | struct packet_type batman_adv_ptype; |
75 | struct net_device *soft_iface; | |
76 | struct rcu_head rcu; | |
14511519 | 77 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 78 | struct work_struct cleanup_work; |
c6c8fea2 SE |
79 | }; |
80 | ||
610bfc6b MH |
81 | /** |
82 | * struct batadv_frag_table_entry - head in the fragment buffer table | |
83 | * @head: head of list with fragments | |
84 | * @lock: lock to protect the list of fragments | |
85 | * @timestamp: time (jiffie) of last received fragment | |
86 | * @seqno: sequence number of the fragments in the list | |
87 | * @size: accumulated size of packets in list | |
88 | */ | |
89 | struct batadv_frag_table_entry { | |
90 | struct hlist_head head; | |
91 | spinlock_t lock; /* protects head */ | |
92 | unsigned long timestamp; | |
93 | uint16_t seqno; | |
94 | uint16_t size; | |
95 | }; | |
96 | ||
97 | /** | |
98 | * struct batadv_frag_list_entry - entry in a list of fragments | |
99 | * @list: list node information | |
100 | * @skb: fragment | |
101 | * @no: fragment number in the set | |
102 | */ | |
103 | struct batadv_frag_list_entry { | |
104 | struct hlist_node list; | |
105 | struct sk_buff *skb; | |
106 | uint8_t no; | |
107 | }; | |
108 | ||
2c53040f | 109 | /** |
b6d0ab7c | 110 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 111 | * @orig: originator ethernet address |
b6d0ab7c | 112 | * @primary_addr: hosts primary interface address |
88a32c9a ML |
113 | * @router: router that should be used to reach this originator |
114 | * @batadv_dat_addr_t: address of the orig node in the distributed hash | |
115 | * @bcast_own: bitfield containing the number of our OGMs this orig_node | |
116 | * rebroadcasted "back" to us (relative to last_real_seqno) | |
117 | * @bcast_own_sum: counted result of bcast_own | |
118 | * @last_seen: time when last packet from this node was received | |
b6d0ab7c ML |
119 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
120 | * @batman_seqno_reset: time when the batman seqno window was reset | |
17cf0ea4 | 121 | * @capabilities: announced capabilities of this originator |
88a32c9a ML |
122 | * @last_ttvn: last seen translation table version number |
123 | * @tt_crc: CRC of the translation table | |
124 | * @tt_buff: last tt changeset this node received from the orig node | |
125 | * @tt_buff_len: length of the last tt changeset this node received from the | |
126 | * orig node | |
127 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
128 | * @tt_size: number of global TT entries announced by the orig node | |
129 | * @tt_initialised: bool keeping track of whether or not this node have received | |
130 | * any translation table information from the orig node yet | |
b6d0ab7c ML |
131 | * @last_real_seqno: last and best known sequence number |
132 | * @last_ttl: ttl of last received packet | |
88a32c9a ML |
133 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
134 | * from this orig node this host already has seen (relative to | |
135 | * last_bcast_seqno) | |
b6d0ab7c | 136 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a | 137 | * @neigh_list: list of potential next hop neighbor towards this orig node |
88a32c9a ML |
138 | * @neigh_list_lock: lock protecting neigh_list, router and bonding_list |
139 | * @hash_entry: hlist node for batadv_priv::orig_hash | |
140 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
141 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, | |
142 | * neigh_node->real_bits & neigh_node->real_packet_count | |
143 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno | |
144 | * @bond_candidates: how many candidates are available | |
145 | * @bond_list: list of bonding candidates | |
146 | * @refcount: number of contexts the object is used | |
147 | * @rcu: struct used for freeing in an RCU-safe manner | |
d56b1705 MH |
148 | * @in_coding_list: list of nodes this orig can hear |
149 | * @out_coding_list: list of nodes that can hear this orig | |
150 | * @in_coding_list_lock: protects in_coding_list | |
151 | * @out_coding_list_lock: protects out_coding_list | |
610bfc6b | 152 | * @fragments: array with heads for fragment chains |
c6c8fea2 | 153 | */ |
56303d34 | 154 | struct batadv_orig_node { |
c6c8fea2 SE |
155 | uint8_t orig[ETH_ALEN]; |
156 | uint8_t primary_addr[ETH_ALEN]; | |
56303d34 | 157 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ |
17224474 | 158 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 159 | batadv_dat_addr_t dat_addr; |
17224474 | 160 | #endif |
c6c8fea2 SE |
161 | unsigned long *bcast_own; |
162 | uint8_t *bcast_own_sum; | |
d7b2a97e | 163 | unsigned long last_seen; |
c6c8fea2 SE |
164 | unsigned long bcast_seqno_reset; |
165 | unsigned long batman_seqno_reset; | |
17cf0ea4 | 166 | uint8_t capabilities; |
88a32c9a | 167 | atomic_t last_ttvn; |
ced72933 | 168 | uint32_t tt_crc; |
2dafb49d AQ |
169 | unsigned char *tt_buff; |
170 | int16_t tt_buff_len; | |
88a32c9a | 171 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
a73105b8 | 172 | atomic_t tt_size; |
17071578 | 173 | bool tt_initialised; |
c6c8fea2 SE |
174 | uint32_t last_real_seqno; |
175 | uint8_t last_ttl; | |
42d0b044 | 176 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 177 | uint32_t last_bcast_seqno; |
9591a79f | 178 | struct hlist_head neigh_list; |
88a32c9a ML |
179 | /* neigh_list_lock protects: neigh_list, router & bonding_list */ |
180 | spinlock_t neigh_list_lock; | |
7aadf889 | 181 | struct hlist_node hash_entry; |
56303d34 | 182 | struct batadv_priv *bat_priv; |
6e215fd8 | 183 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, |
88a32c9a | 184 | * neigh_node->real_bits & neigh_node->real_packet_count |
9cfc7bd6 | 185 | */ |
6e215fd8 | 186 | spinlock_t ogm_cnt_lock; |
88a32c9a | 187 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 188 | spinlock_t bcast_seqno_lock; |
a4c135c5 SW |
189 | atomic_t bond_candidates; |
190 | struct list_head bond_list; | |
88a32c9a ML |
191 | atomic_t refcount; |
192 | struct rcu_head rcu; | |
d56b1705 MH |
193 | #ifdef CONFIG_BATMAN_ADV_NC |
194 | struct list_head in_coding_list; | |
195 | struct list_head out_coding_list; | |
196 | spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
197 | spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
198 | #endif | |
610bfc6b | 199 | struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; |
c6c8fea2 SE |
200 | }; |
201 | ||
17cf0ea4 ML |
202 | /** |
203 | * enum batadv_orig_capabilities - orig node capabilities | |
204 | * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled | |
3f4841ff | 205 | * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled |
17cf0ea4 ML |
206 | */ |
207 | enum batadv_orig_capabilities { | |
208 | BATADV_ORIG_CAPA_HAS_DAT = BIT(0), | |
3f4841ff | 209 | BATADV_ORIG_CAPA_HAS_NC = BIT(1), |
17cf0ea4 ML |
210 | }; |
211 | ||
88a32c9a ML |
212 | /** |
213 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
214 | * @list: list node for batadv_priv_gw::list | |
215 | * @orig_node: pointer to corresponding orig node | |
414254e3 ML |
216 | * @bandwidth_down: advertised uplink download bandwidth |
217 | * @bandwidth_up: advertised uplink upload bandwidth | |
88a32c9a ML |
218 | * @deleted: this struct is scheduled for deletion |
219 | * @refcount: number of contexts the object is used | |
220 | * @rcu: struct used for freeing in an RCU-safe manner | |
221 | */ | |
56303d34 | 222 | struct batadv_gw_node { |
c6c8fea2 | 223 | struct hlist_node list; |
56303d34 | 224 | struct batadv_orig_node *orig_node; |
414254e3 ML |
225 | uint32_t bandwidth_down; |
226 | uint32_t bandwidth_up; | |
c6c8fea2 | 227 | unsigned long deleted; |
25b6d3c1 | 228 | atomic_t refcount; |
c6c8fea2 SE |
229 | struct rcu_head rcu; |
230 | }; | |
231 | ||
88a32c9a ML |
232 | /** |
233 | * struct batadv_neigh_node - structure for single hop neighbors | |
234 | * @list: list node for batadv_orig_node::neigh_list | |
235 | * @addr: mac address of neigh node | |
236 | * @tq_recv: ring buffer of received TQ values from this neigh node | |
237 | * @tq_index: ring buffer index | |
238 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
239 | * @last_ttl: last received ttl from this neigh node | |
240 | * @bonding_list: list node for batadv_orig_node::bond_list | |
241 | * @last_seen: when last packet via this neighbor was received | |
242 | * @real_bits: bitfield containing the number of OGMs received from this neigh | |
243 | * node (relative to orig_node->last_real_seqno) | |
244 | * @real_packet_count: counted result of real_bits | |
245 | * @orig_node: pointer to corresponding orig_node | |
246 | * @if_incoming: pointer to incoming hard interface | |
247 | * @lq_update_lock: lock protecting tq_recv & tq_index | |
248 | * @refcount: number of contexts the object is used | |
249 | * @rcu: struct used for freeing in an RCU-safe manner | |
c6c8fea2 | 250 | */ |
56303d34 | 251 | struct batadv_neigh_node { |
9591a79f | 252 | struct hlist_node list; |
c6c8fea2 | 253 | uint8_t addr[ETH_ALEN]; |
42d0b044 | 254 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
c6c8fea2 SE |
255 | uint8_t tq_index; |
256 | uint8_t tq_avg; | |
257 | uint8_t last_ttl; | |
a4c135c5 | 258 | struct list_head bonding_list; |
d7b2a97e | 259 | unsigned long last_seen; |
42d0b044 | 260 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
88a32c9a | 261 | uint8_t real_packet_count; |
56303d34 SE |
262 | struct batadv_orig_node *orig_node; |
263 | struct batadv_hard_iface *if_incoming; | |
88a32c9a ML |
264 | spinlock_t lq_update_lock; /* protects tq_recv & tq_index */ |
265 | atomic_t refcount; | |
266 | struct rcu_head rcu; | |
c6c8fea2 SE |
267 | }; |
268 | ||
88a32c9a ML |
269 | /** |
270 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
271 | * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast | |
272 | * @crc: crc32 checksum of broadcast payload | |
273 | * @entrytime: time when the broadcast packet was received | |
274 | */ | |
7a5cc242 | 275 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 276 | struct batadv_bcast_duplist_entry { |
fe2da6ff | 277 | uint8_t orig[ETH_ALEN]; |
004e86fc | 278 | __be32 crc; |
fe2da6ff SW |
279 | unsigned long entrytime; |
280 | }; | |
7a5cc242 | 281 | #endif |
c6c8fea2 | 282 | |
88a32c9a ML |
283 | /** |
284 | * enum batadv_counters - indices for traffic counters | |
285 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
286 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
287 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
288 | * @BATADV_CNT_RX: received payload traffic packet counter | |
289 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
290 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
291 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
292 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
293 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
294 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
295 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
ee75ed88 MH |
296 | * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter |
297 | * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
610bfc6b MH |
298 | * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter |
299 | * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
300 | * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter | |
301 | * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
88a32c9a ML |
302 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter |
303 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
304 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
305 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
306 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
307 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
308 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
309 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
310 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
311 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
312 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
313 | * counter | |
3c12de9a MH |
314 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter |
315 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
316 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
317 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
612d2b4f | 318 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding |
2df5278b MH |
319 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter |
320 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
321 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
322 | * counter | |
323 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
324 | * mode. | |
88a32c9a ML |
325 | * @BATADV_CNT_NUM: number of traffic counters |
326 | */ | |
d69909d2 | 327 | enum batadv_counters { |
1c9b0550 ML |
328 | BATADV_CNT_TX, |
329 | BATADV_CNT_TX_BYTES, | |
330 | BATADV_CNT_TX_DROPPED, | |
331 | BATADV_CNT_RX, | |
332 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
333 | BATADV_CNT_FORWARD, |
334 | BATADV_CNT_FORWARD_BYTES, | |
335 | BATADV_CNT_MGMT_TX, | |
336 | BATADV_CNT_MGMT_TX_BYTES, | |
337 | BATADV_CNT_MGMT_RX, | |
338 | BATADV_CNT_MGMT_RX_BYTES, | |
ee75ed88 MH |
339 | BATADV_CNT_FRAG_TX, |
340 | BATADV_CNT_FRAG_TX_BYTES, | |
610bfc6b MH |
341 | BATADV_CNT_FRAG_RX, |
342 | BATADV_CNT_FRAG_RX_BYTES, | |
343 | BATADV_CNT_FRAG_FWD, | |
344 | BATADV_CNT_FRAG_FWD_BYTES, | |
d69909d2 SE |
345 | BATADV_CNT_TT_REQUEST_TX, |
346 | BATADV_CNT_TT_REQUEST_RX, | |
347 | BATADV_CNT_TT_RESPONSE_TX, | |
348 | BATADV_CNT_TT_RESPONSE_RX, | |
349 | BATADV_CNT_TT_ROAM_ADV_TX, | |
350 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
351 | #ifdef CONFIG_BATMAN_ADV_DAT |
352 | BATADV_CNT_DAT_GET_TX, | |
353 | BATADV_CNT_DAT_GET_RX, | |
354 | BATADV_CNT_DAT_PUT_TX, | |
355 | BATADV_CNT_DAT_PUT_RX, | |
356 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
3c12de9a MH |
357 | #endif |
358 | #ifdef CONFIG_BATMAN_ADV_NC | |
359 | BATADV_CNT_NC_CODE, | |
360 | BATADV_CNT_NC_CODE_BYTES, | |
361 | BATADV_CNT_NC_RECODE, | |
362 | BATADV_CNT_NC_RECODE_BYTES, | |
612d2b4f | 363 | BATADV_CNT_NC_BUFFER, |
2df5278b MH |
364 | BATADV_CNT_NC_DECODE, |
365 | BATADV_CNT_NC_DECODE_BYTES, | |
366 | BATADV_CNT_NC_DECODE_FAILED, | |
367 | BATADV_CNT_NC_SNIFFED, | |
4046b24a | 368 | #endif |
d69909d2 | 369 | BATADV_CNT_NUM, |
f8214865 MH |
370 | }; |
371 | ||
807736f6 SE |
372 | /** |
373 | * struct batadv_priv_tt - per mesh interface translation table data | |
374 | * @vn: translation table version number | |
88a32c9a | 375 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 376 | * @local_changes: changes registered in an originator interval |
807736f6 | 377 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
378 | * @local_hash: local translation table hash table |
379 | * @global_hash: global translation table hash table | |
380 | * @req_list: list of pending & unanswered tt_requests | |
381 | * @roam_list: list of the last roaming events of each client limiting the | |
382 | * number of roaming events to avoid route flapping | |
383 | * @changes_list_lock: lock protecting changes_list | |
384 | * @req_list_lock: lock protecting req_list | |
385 | * @roam_list_lock: lock protecting roam_list | |
386 | * @local_entry_num: number of entries in the local hash table | |
807736f6 | 387 | * @local_crc: Checksum of the local table, recomputed before sending a new OGM |
88a32c9a ML |
388 | * @last_changeset: last tt changeset this host has generated |
389 | * @last_changeset_len: length of last tt changeset this host has generated | |
390 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
391 | * @work: work queue callback item for translation table purging | |
807736f6 SE |
392 | */ |
393 | struct batadv_priv_tt { | |
394 | atomic_t vn; | |
395 | atomic_t ogm_append_cnt; | |
396 | atomic_t local_changes; | |
807736f6 SE |
397 | struct list_head changes_list; |
398 | struct batadv_hashtable *local_hash; | |
399 | struct batadv_hashtable *global_hash; | |
400 | struct list_head req_list; | |
401 | struct list_head roam_list; | |
402 | spinlock_t changes_list_lock; /* protects changes */ | |
403 | spinlock_t req_list_lock; /* protects req_list */ | |
404 | spinlock_t roam_list_lock; /* protects roam_list */ | |
405 | atomic_t local_entry_num; | |
ced72933 | 406 | uint32_t local_crc; |
807736f6 SE |
407 | unsigned char *last_changeset; |
408 | int16_t last_changeset_len; | |
88a32c9a ML |
409 | /* protects last_changeset & last_changeset_len */ |
410 | spinlock_t last_changeset_lock; | |
807736f6 SE |
411 | struct delayed_work work; |
412 | }; | |
413 | ||
88a32c9a ML |
414 | /** |
415 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
416 | * @num_requests; number of bla requests in flight | |
417 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
418 | * @backbone_hash: hash table containing all detected backbone gateways | |
419 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
420 | * duplicate suppression) | |
421 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
422 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
423 | * @claim_dest: local claim data (e.g. claim group) | |
424 | * @work: work queue callback item for cleanups & bla announcements | |
425 | */ | |
807736f6 SE |
426 | #ifdef CONFIG_BATMAN_ADV_BLA |
427 | struct batadv_priv_bla { | |
88a32c9a | 428 | atomic_t num_requests; |
807736f6 SE |
429 | struct batadv_hashtable *claim_hash; |
430 | struct batadv_hashtable *backbone_hash; | |
431 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
432 | int bcast_duplist_curr; | |
88a32c9a | 433 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 434 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
435 | struct batadv_bla_claim_dst claim_dest; |
436 | struct delayed_work work; | |
437 | }; | |
438 | #endif | |
439 | ||
88a32c9a ML |
440 | /** |
441 | * struct batadv_debug_log - debug logging data | |
442 | * @log_buff: buffer holding the logs (ring bufer) | |
443 | * @log_start: index of next character to read | |
444 | * @log_end: index of next character to write | |
445 | * @lock: lock protecting log_buff, log_start & log_end | |
446 | * @queue_wait: log reader's wait queue | |
447 | */ | |
0abf5d81 ML |
448 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
449 | struct batadv_priv_debug_log { | |
450 | char log_buff[BATADV_LOG_BUF_LEN]; | |
451 | unsigned long log_start; | |
452 | unsigned long log_end; | |
453 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
454 | wait_queue_head_t queue_wait; | |
455 | }; | |
456 | #endif | |
457 | ||
88a32c9a ML |
458 | /** |
459 | * struct batadv_priv_gw - per mesh interface gateway data | |
460 | * @list: list of available gateway nodes | |
461 | * @list_lock: lock protecting gw_list & curr_gw | |
462 | * @curr_gw: pointer to currently selected gateway node | |
414254e3 ML |
463 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) |
464 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
88a32c9a ML |
465 | * @reselect: bool indicating a gateway re-selection is in progress |
466 | */ | |
807736f6 SE |
467 | struct batadv_priv_gw { |
468 | struct hlist_head list; | |
88a32c9a | 469 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 | 470 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
414254e3 ML |
471 | atomic_t bandwidth_down; |
472 | atomic_t bandwidth_up; | |
807736f6 SE |
473 | atomic_t reselect; |
474 | }; | |
475 | ||
ef261577 ML |
476 | /** |
477 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
478 | * @container_list: list of registered tvlv containers to be sent with each OGM | |
479 | * @handler_list: list of the various tvlv content handlers | |
480 | * @container_list_lock: protects tvlv container list access | |
481 | * @handler_list_lock: protects handler list access | |
482 | */ | |
483 | struct batadv_priv_tvlv { | |
484 | struct hlist_head container_list; | |
485 | struct hlist_head handler_list; | |
486 | spinlock_t container_list_lock; /* protects container_list */ | |
487 | spinlock_t handler_list_lock; /* protects handler_list */ | |
488 | }; | |
489 | ||
785ea114 AQ |
490 | /** |
491 | * struct batadv_priv_dat - per mesh interface DAT private data | |
492 | * @addr: node DAT address | |
2f1dfbe1 AQ |
493 | * @hash: hashtable representing the local ARP cache |
494 | * @work: work queue callback item for cache purging | |
785ea114 | 495 | */ |
17224474 | 496 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 AQ |
497 | struct batadv_priv_dat { |
498 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
499 | struct batadv_hashtable *hash; |
500 | struct delayed_work work; | |
785ea114 | 501 | }; |
17224474 | 502 | #endif |
785ea114 | 503 | |
d353d8d4 MH |
504 | /** |
505 | * struct batadv_priv_nc - per mesh interface network coding private data | |
506 | * @work: work queue callback item for cleanup | |
d56b1705 MH |
507 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
508 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
95332477 | 509 | * @max_fwd_delay: maximum packet forward delay to allow coding of packets |
612d2b4f | 510 | * @max_buffer_time: buffer time for sniffed packets used to decoding |
95332477 | 511 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush |
612d2b4f | 512 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge |
95332477 MH |
513 | * @coding_hash: Hash table used to buffer skbs while waiting for another |
514 | * incoming skb to code it with. Skbs are added to the buffer just before being | |
515 | * forwarded in routing.c | |
612d2b4f MH |
516 | * @decoding_hash: Hash table used to buffer skbs that might be needed to decode |
517 | * a received coded skb. The buffer is used for 1) skbs arriving on the | |
518 | * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
519 | * forwarded by batman-adv. | |
d353d8d4 MH |
520 | */ |
521 | struct batadv_priv_nc { | |
522 | struct delayed_work work; | |
d56b1705 MH |
523 | struct dentry *debug_dir; |
524 | u8 min_tq; | |
95332477 | 525 | u32 max_fwd_delay; |
612d2b4f | 526 | u32 max_buffer_time; |
95332477 | 527 | unsigned long timestamp_fwd_flush; |
612d2b4f | 528 | unsigned long timestamp_sniffed_purge; |
95332477 | 529 | struct batadv_hashtable *coding_hash; |
612d2b4f | 530 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
531 | }; |
532 | ||
88a32c9a ML |
533 | /** |
534 | * struct batadv_priv - per mesh interface data | |
535 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 536 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
537 | * @stats: structure holding the data for the ndo_get_stats() call |
538 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
539 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
540 | * @bonding: bool indicating whether traffic bonding is enabled | |
541 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
ee75ed88 | 542 | * @frag_seqno: incremental counter to identify chains of egress fragments |
88a32c9a ML |
543 | * @ap_isolation: bool indicating whether ap isolation is enabled |
544 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is | |
545 | * enabled | |
546 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
547 | * enabled | |
88a32c9a ML |
548 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) |
549 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
88a32c9a ML |
550 | * @orig_interval: OGM broadcast interval in milliseconds |
551 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
552 | * @log_level: configured log level (see batadv_dbg_level) | |
553 | * @bcast_seqno: last sent broadcast packet sequence number | |
554 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
555 | * @batman_queue_left: number of remaining OGM packet slots | |
556 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
557 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
558 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
559 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
560 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
561 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
562 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
563 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
564 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 565 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
566 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
567 | * becomes the primary interface | |
568 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
569 | * @bla: bridge loope avoidance data | |
570 | * @debug_log: holding debug logging relevant data | |
571 | * @gw: gateway data | |
572 | * @tt: translation table data | |
ef261577 | 573 | * @tvlv: type-version-length-value data |
88a32c9a | 574 | * @dat: distributed arp table data |
d353d8d4 MH |
575 | * @network_coding: bool indicating whether network coding is enabled |
576 | * @batadv_priv_nc: network coding data | |
88a32c9a | 577 | */ |
56303d34 | 578 | struct batadv_priv { |
c6c8fea2 | 579 | atomic_t mesh_state; |
5bc44dc8 | 580 | struct net_device *soft_iface; |
c6c8fea2 | 581 | struct net_device_stats stats; |
f8214865 | 582 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
583 | atomic_t aggregated_ogms; |
584 | atomic_t bonding; | |
585 | atomic_t fragmentation; | |
ee75ed88 | 586 | atomic_t frag_seqno; |
88a32c9a | 587 | atomic_t ap_isolation; |
fa706554 | 588 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 589 | atomic_t bridge_loop_avoidance; |
fa706554 | 590 | #endif |
33af49ad | 591 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 592 | atomic_t distributed_arp_table; |
33af49ad | 593 | #endif |
88a32c9a ML |
594 | atomic_t gw_mode; |
595 | atomic_t gw_sel_class; | |
88a32c9a ML |
596 | atomic_t orig_interval; |
597 | atomic_t hop_penalty; | |
0c430d0d | 598 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 599 | atomic_t log_level; |
0c430d0d | 600 | #endif |
c6c8fea2 SE |
601 | atomic_t bcast_seqno; |
602 | atomic_t bcast_queue_left; | |
603 | atomic_t batman_queue_left; | |
604 | char num_ifaces; | |
c6c8fea2 SE |
605 | struct kobject *mesh_obj; |
606 | struct dentry *debug_dir; | |
607 | struct hlist_head forw_bat_list; | |
608 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 609 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 610 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 611 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 612 | struct delayed_work orig_work; |
5bc44dc8 | 613 | struct work_struct cleanup_work; |
56303d34 | 614 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 615 | struct batadv_algo_ops *bat_algo_ops; |
807736f6 SE |
616 | #ifdef CONFIG_BATMAN_ADV_BLA |
617 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
618 | #endif |
619 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
620 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
621 | #endif |
622 | struct batadv_priv_gw gw; | |
623 | struct batadv_priv_tt tt; | |
ef261577 | 624 | struct batadv_priv_tvlv tvlv; |
17224474 | 625 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 626 | struct batadv_priv_dat dat; |
17224474 | 627 | #endif |
d353d8d4 MH |
628 | #ifdef CONFIG_BATMAN_ADV_NC |
629 | atomic_t network_coding; | |
630 | struct batadv_priv_nc nc; | |
631 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
632 | }; |
633 | ||
88a32c9a ML |
634 | /** |
635 | * struct batadv_socket_client - layer2 icmp socket client data | |
636 | * @queue_list: packet queue for packets destined for this socket client | |
637 | * @queue_len: number of packets in the packet queue (queue_list) | |
638 | * @index: socket client's index in the batadv_socket_client_hash | |
639 | * @lock: lock protecting queue_list, queue_len & index | |
640 | * @queue_wait: socket client's wait queue | |
641 | * @bat_priv: pointer to soft_iface this client belongs to | |
642 | */ | |
56303d34 | 643 | struct batadv_socket_client { |
c6c8fea2 SE |
644 | struct list_head queue_list; |
645 | unsigned int queue_len; | |
646 | unsigned char index; | |
88a32c9a | 647 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 648 | wait_queue_head_t queue_wait; |
56303d34 | 649 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
650 | }; |
651 | ||
88a32c9a ML |
652 | /** |
653 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
654 | * @list: list node for batadv_socket_client::queue_list | |
655 | * @icmp_len: size of the layer2 icmp packet | |
656 | * @icmp_packet: layer2 icmp packet | |
657 | */ | |
56303d34 | 658 | struct batadv_socket_packet { |
c6c8fea2 SE |
659 | struct list_head list; |
660 | size_t icmp_len; | |
96412690 | 661 | struct batadv_icmp_packet_rr icmp_packet; |
c6c8fea2 SE |
662 | }; |
663 | ||
88a32c9a ML |
664 | /** |
665 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
666 | * @orig: originator address of backbone node (mac address of primary iface) | |
667 | * @vid: vlan id this gateway was detected on | |
668 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
669 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
670 | * @lasttime: last time we heard of this backbone gw | |
671 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
672 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
673 | * @request_sent: if this bool is set to true we are out of sync with this | |
674 | * backbone gateway - no bcast traffic is formwared until the situation was | |
675 | * resolved | |
676 | * @crc: crc16 checksum over all claims | |
677 | * @refcount: number of contexts the object is used | |
678 | * @rcu: struct used for freeing in an RCU-safe manner | |
679 | */ | |
2006fea8 | 680 | #ifdef CONFIG_BATMAN_ADV_BLA |
bae98774 | 681 | struct batadv_bla_backbone_gw { |
2006fea8 | 682 | uint8_t orig[ETH_ALEN]; |
eb2deb6b | 683 | unsigned short vid; |
2006fea8 ML |
684 | struct hlist_node hash_entry; |
685 | struct batadv_priv *bat_priv; | |
88a32c9a | 686 | unsigned long lasttime; |
2006fea8 ML |
687 | atomic_t wait_periods; |
688 | atomic_t request_sent; | |
88a32c9a | 689 | uint16_t crc; |
2006fea8 ML |
690 | atomic_t refcount; |
691 | struct rcu_head rcu; | |
2006fea8 ML |
692 | }; |
693 | ||
88a32c9a ML |
694 | /** |
695 | * struct batadv_bla_claim - claimed non-mesh client structure | |
696 | * @addr: mac address of claimed non-mesh client | |
697 | * @vid: vlan id this client was detected on | |
698 | * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client | |
699 | * @lasttime: last time we heard of claim (locals only) | |
700 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
701 | * @refcount: number of contexts the object is used | |
702 | * @rcu: struct used for freeing in an RCU-safe manner | |
703 | */ | |
712bbfe4 | 704 | struct batadv_bla_claim { |
2006fea8 | 705 | uint8_t addr[ETH_ALEN]; |
eb2deb6b | 706 | unsigned short vid; |
bae98774 | 707 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
708 | unsigned long lasttime; |
709 | struct hlist_node hash_entry; | |
2006fea8 ML |
710 | struct rcu_head rcu; |
711 | atomic_t refcount; | |
2006fea8 ML |
712 | }; |
713 | #endif | |
714 | ||
88a32c9a ML |
715 | /** |
716 | * struct batadv_tt_common_entry - tt local & tt global common data | |
717 | * @addr: mac address of non-mesh client | |
718 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for | |
719 | * batadv_priv_tt::global_hash | |
720 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
721 | * @added_at: timestamp used for purging stale tt common entries | |
722 | * @refcount: number of contexts the object is used | |
723 | * @rcu: struct used for freeing in an RCU-safe manner | |
724 | */ | |
56303d34 | 725 | struct batadv_tt_common_entry { |
c6c8fea2 | 726 | uint8_t addr[ETH_ALEN]; |
93840ac4 | 727 | struct hlist_node hash_entry; |
5fbc1598 | 728 | uint16_t flags; |
30cfd02b | 729 | unsigned long added_at; |
7683fdc1 AQ |
730 | atomic_t refcount; |
731 | struct rcu_head rcu; | |
c6c8fea2 SE |
732 | }; |
733 | ||
88a32c9a ML |
734 | /** |
735 | * struct batadv_tt_local_entry - translation table local entry data | |
736 | * @common: general translation table data | |
737 | * @last_seen: timestamp used for purging stale tt local entries | |
738 | */ | |
56303d34 SE |
739 | struct batadv_tt_local_entry { |
740 | struct batadv_tt_common_entry common; | |
48100bac AQ |
741 | unsigned long last_seen; |
742 | }; | |
743 | ||
88a32c9a ML |
744 | /** |
745 | * struct batadv_tt_global_entry - translation table global entry data | |
746 | * @common: general translation table data | |
747 | * @orig_list: list of orig nodes announcing this non-mesh client | |
748 | * @list_lock: lock protecting orig_list | |
749 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
750 | */ | |
56303d34 SE |
751 | struct batadv_tt_global_entry { |
752 | struct batadv_tt_common_entry common; | |
db08e6e5 | 753 | struct hlist_head orig_list; |
88a32c9a ML |
754 | spinlock_t list_lock; /* protects orig_list */ |
755 | unsigned long roam_at; | |
db08e6e5 SW |
756 | }; |
757 | ||
88a32c9a ML |
758 | /** |
759 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
760 | * @orig_node: pointer to orig node announcing this non-mesh client | |
761 | * @ttvn: translation table version number which added the non-mesh client | |
762 | * @list: list node for batadv_tt_global_entry::orig_list | |
763 | * @refcount: number of contexts the object is used | |
764 | * @rcu: struct used for freeing in an RCU-safe manner | |
765 | */ | |
56303d34 SE |
766 | struct batadv_tt_orig_list_entry { |
767 | struct batadv_orig_node *orig_node; | |
a73105b8 | 768 | uint8_t ttvn; |
88a32c9a | 769 | struct hlist_node list; |
d657e621 | 770 | atomic_t refcount; |
db08e6e5 | 771 | struct rcu_head rcu; |
c6c8fea2 SE |
772 | }; |
773 | ||
88a32c9a ML |
774 | /** |
775 | * struct batadv_tt_change_node - structure for tt changes occured | |
776 | * @list: list node for batadv_priv_tt::changes_list | |
777 | * @change: holds the actual translation table diff data | |
778 | */ | |
56303d34 | 779 | struct batadv_tt_change_node { |
a73105b8 | 780 | struct list_head list; |
e1bf0c14 | 781 | struct batadv_tvlv_tt_change change; |
a73105b8 AQ |
782 | }; |
783 | ||
88a32c9a ML |
784 | /** |
785 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
786 | * @addr: mac address address of the originator this request was sent to | |
787 | * @issued_at: timestamp used for purging stale tt requests | |
788 | * @list: list node for batadv_priv_tt::req_list | |
789 | */ | |
56303d34 | 790 | struct batadv_tt_req_node { |
a73105b8 AQ |
791 | uint8_t addr[ETH_ALEN]; |
792 | unsigned long issued_at; | |
793 | struct list_head list; | |
794 | }; | |
795 | ||
88a32c9a ML |
796 | /** |
797 | * struct batadv_tt_roam_node - roaming client data | |
798 | * @addr: mac address of the client in the roaming phase | |
799 | * @counter: number of allowed roaming events per client within a single | |
800 | * OGM interval (changes are committed with each OGM) | |
801 | * @first_time: timestamp used for purging stale roaming node entries | |
802 | * @list: list node for batadv_priv_tt::roam_list | |
803 | */ | |
56303d34 | 804 | struct batadv_tt_roam_node { |
cc47f66e AQ |
805 | uint8_t addr[ETH_ALEN]; |
806 | atomic_t counter; | |
807 | unsigned long first_time; | |
808 | struct list_head list; | |
809 | }; | |
810 | ||
d56b1705 MH |
811 | /** |
812 | * struct batadv_nc_node - network coding node | |
813 | * @list: next and prev pointer for the list handling | |
814 | * @addr: the node's mac address | |
815 | * @refcount: number of contexts the object is used by | |
816 | * @rcu: struct used for freeing in an RCU-safe manner | |
817 | * @orig_node: pointer to corresponding orig node struct | |
818 | * @last_seen: timestamp of last ogm received from this node | |
819 | */ | |
820 | struct batadv_nc_node { | |
821 | struct list_head list; | |
822 | uint8_t addr[ETH_ALEN]; | |
823 | atomic_t refcount; | |
824 | struct rcu_head rcu; | |
825 | struct batadv_orig_node *orig_node; | |
826 | unsigned long last_seen; | |
827 | }; | |
828 | ||
95332477 MH |
829 | /** |
830 | * struct batadv_nc_path - network coding path | |
831 | * @hash_entry: next and prev pointer for the list handling | |
832 | * @rcu: struct used for freeing in an RCU-safe manner | |
833 | * @refcount: number of contexts the object is used by | |
834 | * @packet_list: list of buffered packets for this path | |
835 | * @packet_list_lock: access lock for packet list | |
836 | * @next_hop: next hop (destination) of path | |
837 | * @prev_hop: previous hop (source) of path | |
838 | * @last_valid: timestamp for last validation of path | |
839 | */ | |
840 | struct batadv_nc_path { | |
841 | struct hlist_node hash_entry; | |
842 | struct rcu_head rcu; | |
843 | atomic_t refcount; | |
844 | struct list_head packet_list; | |
845 | spinlock_t packet_list_lock; /* Protects packet_list */ | |
846 | uint8_t next_hop[ETH_ALEN]; | |
847 | uint8_t prev_hop[ETH_ALEN]; | |
848 | unsigned long last_valid; | |
849 | }; | |
850 | ||
851 | /** | |
852 | * struct batadv_nc_packet - network coding packet used when coding and | |
853 | * decoding packets | |
854 | * @list: next and prev pointer for the list handling | |
855 | * @packet_id: crc32 checksum of skb data | |
856 | * @timestamp: field containing the info when the packet was added to path | |
857 | * @neigh_node: pointer to original next hop neighbor of skb | |
858 | * @skb: skb which can be encoded or used for decoding | |
859 | * @nc_path: pointer to path this nc packet is attached to | |
860 | */ | |
861 | struct batadv_nc_packet { | |
862 | struct list_head list; | |
863 | __be32 packet_id; | |
864 | unsigned long timestamp; | |
865 | struct batadv_neigh_node *neigh_node; | |
866 | struct sk_buff *skb; | |
867 | struct batadv_nc_path *nc_path; | |
868 | }; | |
869 | ||
3c12de9a MH |
870 | /** |
871 | * batadv_skb_cb - control buffer structure used to store private data relevant | |
872 | * to batman-adv in the skb->cb buffer in skbs. | |
873 | * @decoded: Marks a skb as decoded, which is checked when searching for coding | |
874 | * opportunities in network-coding.c | |
875 | */ | |
876 | struct batadv_skb_cb { | |
877 | bool decoded; | |
878 | }; | |
879 | ||
88a32c9a ML |
880 | /** |
881 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
882 | * @list: list node for batadv_socket_client::queue_list | |
883 | * @send_time: execution time for delayed_work (packet sending) | |
884 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
885 | * sending) | |
886 | * @skb: bcast packet's skb buffer | |
887 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
888 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
889 | * @num_packets: counter for bcast packet retransmission | |
890 | * @delayed_work: work queue callback item for packet sending | |
891 | * @if_incoming: pointer incoming hard-iface or primary iface if locally | |
892 | * generated packet | |
c6c8fea2 | 893 | */ |
56303d34 | 894 | struct batadv_forw_packet { |
c6c8fea2 SE |
895 | struct hlist_node list; |
896 | unsigned long send_time; | |
897 | uint8_t own; | |
898 | struct sk_buff *skb; | |
899 | uint16_t packet_len; | |
900 | uint32_t direct_link_flags; | |
901 | uint8_t num_packets; | |
902 | struct delayed_work delayed_work; | |
56303d34 | 903 | struct batadv_hard_iface *if_incoming; |
c6c8fea2 SE |
904 | }; |
905 | ||
88a32c9a ML |
906 | /** |
907 | * struct batadv_algo_ops - mesh algorithm callbacks | |
908 | * @list: list node for the batadv_algo_list | |
909 | * @name: name of the algorithm | |
910 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
911 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
912 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
913 | * belonging to this hard-interface | |
914 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
915 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
916 | * @bat_ogm_emit: send scheduled OGM | |
917 | */ | |
56303d34 | 918 | struct batadv_algo_ops { |
1c280471 ML |
919 | struct hlist_node list; |
920 | char *name; | |
56303d34 | 921 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 922 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 923 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 924 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 925 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 926 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
1c280471 ML |
927 | }; |
928 | ||
2f1dfbe1 AQ |
929 | /** |
930 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
931 | * is used to stored ARP entries needed for the global DAT cache | |
932 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
933 | * @mac_addr: the MAC address associated to the stored IPv4 | |
934 | * @last_update: time in jiffies when this entry was refreshed last time | |
935 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
936 | * @refcount: number of contexts the object is used | |
937 | * @rcu: struct used for freeing in an RCU-safe manner | |
938 | */ | |
939 | struct batadv_dat_entry { | |
940 | __be32 ip; | |
941 | uint8_t mac_addr[ETH_ALEN]; | |
942 | unsigned long last_update; | |
943 | struct hlist_node hash_entry; | |
944 | atomic_t refcount; | |
945 | struct rcu_head rcu; | |
946 | }; | |
947 | ||
785ea114 AQ |
948 | /** |
949 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
950 | * @type: the type of the selected candidate. It can one of the following: | |
951 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
952 | * - BATADV_DAT_CANDIDATE_ORIG | |
953 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
954 | * corresponding originator node structure | |
955 | */ | |
956 | struct batadv_dat_candidate { | |
957 | int type; | |
958 | struct batadv_orig_node *orig_node; | |
959 | }; | |
960 | ||
ef261577 ML |
961 | /** |
962 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
963 | * @list: hlist node for batadv_priv_tvlv::container_list | |
964 | * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
965 | * @value_len: length of the buffer following this struct which contains | |
966 | * the actual tvlv payload | |
967 | * @refcount: number of contexts the object is used | |
968 | */ | |
969 | struct batadv_tvlv_container { | |
970 | struct hlist_node list; | |
971 | struct batadv_tvlv_hdr tvlv_hdr; | |
972 | atomic_t refcount; | |
973 | }; | |
974 | ||
975 | /** | |
976 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
977 | * @list: hlist node for batadv_priv_tvlv::handler_list | |
978 | * @ogm_handler: handler callback which is given the tvlv payload to process on | |
979 | * incoming OGM packets | |
980 | * @unicast_handler: handler callback which is given the tvlv payload to process | |
981 | * on incoming unicast tvlv packets | |
982 | * @type: tvlv type this handler feels responsible for | |
983 | * @version: tvlv version this handler feels responsible for | |
984 | * @flags: tvlv handler flags | |
985 | * @refcount: number of contexts the object is used | |
986 | * @rcu: struct used for freeing in an RCU-safe manner | |
987 | */ | |
988 | struct batadv_tvlv_handler { | |
989 | struct hlist_node list; | |
990 | void (*ogm_handler)(struct batadv_priv *bat_priv, | |
991 | struct batadv_orig_node *orig, | |
992 | uint8_t flags, | |
993 | void *tvlv_value, uint16_t tvlv_value_len); | |
994 | int (*unicast_handler)(struct batadv_priv *bat_priv, | |
995 | uint8_t *src, uint8_t *dst, | |
996 | void *tvlv_value, uint16_t tvlv_value_len); | |
997 | uint8_t type; | |
998 | uint8_t version; | |
999 | uint8_t flags; | |
1000 | atomic_t refcount; | |
1001 | struct rcu_head rcu; | |
1002 | }; | |
1003 | ||
1004 | /** | |
1005 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
1006 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
1007 | * this handler even if its type was not found (with no data) | |
1008 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
1009 | * a handler as being called, so it won't be called if the | |
1010 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
1011 | */ | |
1012 | enum batadv_tvlv_handler_flags { | |
1013 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
1014 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
1015 | }; | |
1016 | ||
c6c8fea2 | 1017 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |