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7db7d9f3 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
cfa55c6d | 2 | /* Copyright (C) B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
3 | * |
4 | * Marek Lindner, Simon Wunderlich | |
c6c8fea2 SE |
5 | */ |
6 | ||
c6c8fea2 SE |
7 | #ifndef _NET_BATMAN_ADV_TYPES_H_ |
8 | #define _NET_BATMAN_ADV_TYPES_H_ | |
9 | ||
1e2c2a4f SE |
10 | #ifndef _NET_BATMAN_ADV_MAIN_H_ |
11 | #error only "main.h" can be included directly | |
12 | #endif | |
13 | ||
162bd64c | 14 | #include <linux/average.h> |
1e2c2a4f SE |
15 | #include <linux/bitops.h> |
16 | #include <linux/compiler.h> | |
68a600de | 17 | #include <linux/if.h> |
1e2c2a4f | 18 | #include <linux/if_ether.h> |
90f564df | 19 | #include <linux/kref.h> |
a8d23cbb | 20 | #include <linux/mutex.h> |
1e2c2a4f | 21 | #include <linux/netdevice.h> |
85cf8c85 | 22 | #include <linux/netlink.h> |
1e2c2a4f | 23 | #include <linux/sched.h> /* for linux/wait.h */ |
68a600de | 24 | #include <linux/skbuff.h> |
1e2c2a4f | 25 | #include <linux/spinlock.h> |
68a600de | 26 | #include <linux/timer.h> |
1e2c2a4f SE |
27 | #include <linux/types.h> |
28 | #include <linux/wait.h> | |
29 | #include <linux/workqueue.h> | |
fec149f5 | 30 | #include <uapi/linux/batadv_packet.h> |
33a3bb4a | 31 | #include <uapi/linux/batman_adv.h> |
1e2c2a4f | 32 | |
17224474 AQ |
33 | #ifdef CONFIG_BATMAN_ADV_DAT |
34 | ||
151dcb3c | 35 | /** |
993a4a5f SE |
36 | * typedef batadv_dat_addr_t - type used for all DHT addresses |
37 | * | |
38 | * If it is changed, BATADV_DAT_ADDR_MAX is changed as well. | |
785ea114 AQ |
39 | * |
40 | * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
41 | */ | |
993a4a5f | 42 | typedef u16 batadv_dat_addr_t; |
785ea114 | 43 | |
17224474 AQ |
44 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
45 | ||
6c413b1c AQ |
46 | /** |
47 | * enum batadv_dhcp_recipient - dhcp destination | |
6c413b1c AQ |
48 | */ |
49 | enum batadv_dhcp_recipient { | |
8b84cc4f | 50 | /** @BATADV_DHCP_NO: packet is not a dhcp message */ |
6c413b1c | 51 | BATADV_DHCP_NO = 0, |
8b84cc4f SE |
52 | |
53 | /** @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server */ | |
6c413b1c | 54 | BATADV_DHCP_TO_SERVER, |
8b84cc4f SE |
55 | |
56 | /** @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client */ | |
6c413b1c AQ |
57 | BATADV_DHCP_TO_CLIENT, |
58 | }; | |
59 | ||
3c4f7ab6 AQ |
60 | /** |
61 | * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the | |
62 | * wire only | |
63 | */ | |
64 | #define BATADV_TT_REMOTE_MASK 0x00FF | |
65 | ||
0eb01568 AQ |
66 | /** |
67 | * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync | |
68 | * among the nodes. These flags are used to compute the global/local CRC | |
69 | */ | |
70 | #define BATADV_TT_SYNC_MASK 0x00F0 | |
71 | ||
14511519 | 72 | /** |
d1f68250 | 73 | * struct batadv_hard_iface_bat_iv - per hard-interface B.A.T.M.A.N. IV data |
14511519 ML |
74 | */ |
75 | struct batadv_hard_iface_bat_iv { | |
8b84cc4f | 76 | /** @ogm_buff: buffer holding the OGM packet */ |
14511519 | 77 | unsigned char *ogm_buff; |
8b84cc4f SE |
78 | |
79 | /** @ogm_buff_len: length of the OGM packet buffer */ | |
14511519 | 80 | int ogm_buff_len; |
8b84cc4f SE |
81 | |
82 | /** @ogm_seqno: OGM sequence number - used to identify each OGM */ | |
14511519 | 83 | atomic_t ogm_seqno; |
40e220b4 SE |
84 | |
85 | /** @ogm_buff_mutex: lock protecting ogm_buff and ogm_buff_len */ | |
86 | struct mutex ogm_buff_mutex; | |
14511519 ML |
87 | }; |
88 | ||
c833484e AQ |
89 | /** |
90 | * enum batadv_v_hard_iface_flags - interface flags useful to B.A.T.M.A.N. V | |
c833484e AQ |
91 | */ |
92 | enum batadv_v_hard_iface_flags { | |
8b84cc4f SE |
93 | /** |
94 | * @BATADV_FULL_DUPLEX: tells if the connection over this link is | |
95 | * full-duplex | |
96 | */ | |
c833484e | 97 | BATADV_FULL_DUPLEX = BIT(0), |
8b84cc4f SE |
98 | |
99 | /** | |
100 | * @BATADV_WARNING_DEFAULT: tells whether we have warned the user that | |
101 | * no throughput data is available for this interface and that default | |
102 | * values are assumed. | |
103 | */ | |
c833484e AQ |
104 | BATADV_WARNING_DEFAULT = BIT(1), |
105 | }; | |
106 | ||
d6f94d91 LL |
107 | /** |
108 | * struct batadv_hard_iface_bat_v - per hard-interface B.A.T.M.A.N. V data | |
d6f94d91 LL |
109 | */ |
110 | struct batadv_hard_iface_bat_v { | |
8b84cc4f | 111 | /** @elp_interval: time interval between two ELP transmissions */ |
d6f94d91 | 112 | atomic_t elp_interval; |
8b84cc4f SE |
113 | |
114 | /** @elp_seqno: current ELP sequence number */ | |
d6f94d91 | 115 | atomic_t elp_seqno; |
8b84cc4f SE |
116 | |
117 | /** @elp_skb: base skb containing the ELP message to send */ | |
d6f94d91 | 118 | struct sk_buff *elp_skb; |
8b84cc4f SE |
119 | |
120 | /** @elp_wq: workqueue used to schedule ELP transmissions */ | |
d6f94d91 | 121 | struct delayed_work elp_wq; |
8b84cc4f | 122 | |
f89255a0 LL |
123 | /** @aggr_wq: workqueue used to transmit queued OGM packets */ |
124 | struct delayed_work aggr_wq; | |
125 | ||
126 | /** @aggr_list: queue for to be aggregated OGM packets */ | |
127 | struct sk_buff_head aggr_list; | |
128 | ||
129 | /** @aggr_len: size of the OGM aggregate (excluding ethernet header) */ | |
130 | unsigned int aggr_len; | |
131 | ||
8b84cc4f SE |
132 | /** |
133 | * @throughput_override: throughput override to disable link | |
134 | * auto-detection | |
135 | */ | |
0b5ecc68 | 136 | atomic_t throughput_override; |
8b84cc4f SE |
137 | |
138 | /** @flags: interface specific flags */ | |
c833484e | 139 | u8 flags; |
d6f94d91 LL |
140 | }; |
141 | ||
10b1bbb4 SE |
142 | /** |
143 | * enum batadv_hard_iface_wifi_flags - Flags describing the wifi configuration | |
144 | * of a batadv_hard_iface | |
10b1bbb4 SE |
145 | */ |
146 | enum batadv_hard_iface_wifi_flags { | |
8b84cc4f | 147 | /** @BATADV_HARDIF_WIFI_WEXT_DIRECT: it is a wext wifi device */ |
10b1bbb4 | 148 | BATADV_HARDIF_WIFI_WEXT_DIRECT = BIT(0), |
8b84cc4f SE |
149 | |
150 | /** @BATADV_HARDIF_WIFI_CFG80211_DIRECT: it is a cfg80211 wifi device */ | |
10b1bbb4 | 151 | BATADV_HARDIF_WIFI_CFG80211_DIRECT = BIT(1), |
8b84cc4f SE |
152 | |
153 | /** | |
154 | * @BATADV_HARDIF_WIFI_WEXT_INDIRECT: link device is a wext wifi device | |
155 | */ | |
5ed4a460 | 156 | BATADV_HARDIF_WIFI_WEXT_INDIRECT = BIT(2), |
8b84cc4f SE |
157 | |
158 | /** | |
159 | * @BATADV_HARDIF_WIFI_CFG80211_INDIRECT: link device is a cfg80211 wifi | |
160 | * device | |
161 | */ | |
5ed4a460 | 162 | BATADV_HARDIF_WIFI_CFG80211_INDIRECT = BIT(3), |
10b1bbb4 SE |
163 | }; |
164 | ||
88a32c9a ML |
165 | /** |
166 | * struct batadv_hard_iface - network device known to batman-adv | |
88a32c9a | 167 | */ |
56303d34 | 168 | struct batadv_hard_iface { |
8b84cc4f | 169 | /** @list: list node for batadv_hardif_list */ |
c6c8fea2 | 170 | struct list_head list; |
8b84cc4f | 171 | |
8b84cc4f | 172 | /** @if_status: status of the interface for batman-adv */ |
c6c8fea2 | 173 | char if_status; |
8b84cc4f SE |
174 | |
175 | /** | |
176 | * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) | |
177 | */ | |
6b5e971a | 178 | u8 num_bcasts; |
8b84cc4f SE |
179 | |
180 | /** | |
181 | * @wifi_flags: flags whether this is (directly or indirectly) a wifi | |
182 | * interface | |
183 | */ | |
10b1bbb4 | 184 | u32 wifi_flags; |
8b84cc4f SE |
185 | |
186 | /** @net_dev: pointer to the net_device */ | |
75721643 | 187 | struct net_device *net_dev; |
8b84cc4f | 188 | |
8b84cc4f | 189 | /** @refcount: number of contexts the object is used */ |
7a659d56 | 190 | struct kref refcount; |
8b84cc4f SE |
191 | |
192 | /** | |
193 | * @batman_adv_ptype: packet type describing packets that should be | |
194 | * processed by batman-adv for this interface | |
195 | */ | |
c6c8fea2 | 196 | struct packet_type batman_adv_ptype; |
8b84cc4f SE |
197 | |
198 | /** | |
199 | * @soft_iface: the batman-adv interface which uses this network | |
200 | * interface | |
201 | */ | |
c6c8fea2 | 202 | struct net_device *soft_iface; |
8b84cc4f SE |
203 | |
204 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
c6c8fea2 | 205 | struct rcu_head rcu; |
8b84cc4f | 206 | |
3bda14d0 LL |
207 | /** |
208 | * @hop_penalty: penalty which will be applied to the tq-field | |
209 | * of an OGM received via this interface | |
210 | */ | |
211 | atomic_t hop_penalty; | |
212 | ||
8b84cc4f | 213 | /** @bat_iv: per hard-interface B.A.T.M.A.N. IV data */ |
14511519 | 214 | struct batadv_hard_iface_bat_iv bat_iv; |
8b84cc4f | 215 | |
d6f94d91 | 216 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
8b84cc4f | 217 | /** @bat_v: per hard-interface B.A.T.M.A.N. V data */ |
d6f94d91 LL |
218 | struct batadv_hard_iface_bat_v bat_v; |
219 | #endif | |
8b84cc4f | 220 | |
8b84cc4f SE |
221 | /** |
222 | * @neigh_list: list of unique single hop neighbors via this interface | |
223 | */ | |
cef63419 | 224 | struct hlist_head neigh_list; |
8b84cc4f SE |
225 | |
226 | /** @neigh_list_lock: lock protecting neigh_list */ | |
cef63419 | 227 | spinlock_t neigh_list_lock; |
c6c8fea2 SE |
228 | }; |
229 | ||
dee222c7 | 230 | /** |
25d81f93 SE |
231 | * struct batadv_orig_ifinfo_bat_iv - B.A.T.M.A.N. IV private orig_ifinfo |
232 | * members | |
dee222c7 SE |
233 | */ |
234 | struct batadv_orig_ifinfo_bat_iv { | |
235 | /** | |
236 | * @bcast_own: bitfield which counts the number of our OGMs this | |
237 | * orig_node rebroadcasted "back" to us (relative to last_real_seqno) | |
238 | */ | |
239 | DECLARE_BITMAP(bcast_own, BATADV_TQ_LOCAL_WINDOW_SIZE); | |
240 | ||
241 | /** @bcast_own_sum: sum of bcast_own */ | |
242 | u8 bcast_own_sum; | |
243 | }; | |
244 | ||
7351a482 SW |
245 | /** |
246 | * struct batadv_orig_ifinfo - originator info per outgoing interface | |
7351a482 SW |
247 | */ |
248 | struct batadv_orig_ifinfo { | |
a07369d7 | 249 | /** @list: list node for &batadv_orig_node.ifinfo_list */ |
7351a482 | 250 | struct hlist_node list; |
8b84cc4f SE |
251 | |
252 | /** @if_outgoing: pointer to outgoing hard-interface */ | |
7351a482 | 253 | struct batadv_hard_iface *if_outgoing; |
8b84cc4f SE |
254 | |
255 | /** @router: router that should be used to reach this originator */ | |
256 | struct batadv_neigh_node __rcu *router; | |
257 | ||
258 | /** @last_real_seqno: last and best known sequence number */ | |
6b5e971a | 259 | u32 last_real_seqno; |
8b84cc4f SE |
260 | |
261 | /** @last_ttl: ttl of last received packet */ | |
6b5e971a | 262 | u8 last_ttl; |
8b84cc4f SE |
263 | |
264 | /** @last_seqno_forwarded: seqno of the OGM which was forwarded last */ | |
9323158e | 265 | u32 last_seqno_forwarded; |
8b84cc4f SE |
266 | |
267 | /** @batman_seqno_reset: time when the batman seqno window was reset */ | |
7351a482 | 268 | unsigned long batman_seqno_reset; |
8b84cc4f | 269 | |
dee222c7 SE |
270 | /** @bat_iv: B.A.T.M.A.N. IV private structure */ |
271 | struct batadv_orig_ifinfo_bat_iv bat_iv; | |
272 | ||
8b84cc4f | 273 | /** @refcount: number of contexts the object is used */ |
a6ba0d34 | 274 | struct kref refcount; |
8b84cc4f SE |
275 | |
276 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
7351a482 SW |
277 | struct rcu_head rcu; |
278 | }; | |
279 | ||
610bfc6b MH |
280 | /** |
281 | * struct batadv_frag_table_entry - head in the fragment buffer table | |
610bfc6b MH |
282 | */ |
283 | struct batadv_frag_table_entry { | |
8b84cc4f | 284 | /** @fragment_list: head of list with fragments */ |
176e5b77 | 285 | struct hlist_head fragment_list; |
8b84cc4f SE |
286 | |
287 | /** @lock: lock to protect the list of fragments */ | |
288 | spinlock_t lock; | |
289 | ||
290 | /** @timestamp: time (jiffie) of last received fragment */ | |
610bfc6b | 291 | unsigned long timestamp; |
8b84cc4f SE |
292 | |
293 | /** @seqno: sequence number of the fragments in the list */ | |
6b5e971a | 294 | u16 seqno; |
8b84cc4f SE |
295 | |
296 | /** @size: accumulated size of packets in list */ | |
6b5e971a | 297 | u16 size; |
8b84cc4f SE |
298 | |
299 | /** @total_size: expected size of the assembled packet */ | |
6b5e971a | 300 | u16 total_size; |
610bfc6b MH |
301 | }; |
302 | ||
303 | /** | |
304 | * struct batadv_frag_list_entry - entry in a list of fragments | |
610bfc6b MH |
305 | */ |
306 | struct batadv_frag_list_entry { | |
8b84cc4f | 307 | /** @list: list node information */ |
610bfc6b | 308 | struct hlist_node list; |
8b84cc4f SE |
309 | |
310 | /** @skb: fragment */ | |
610bfc6b | 311 | struct sk_buff *skb; |
8b84cc4f SE |
312 | |
313 | /** @no: fragment number in the set */ | |
6b5e971a | 314 | u8 no; |
610bfc6b MH |
315 | }; |
316 | ||
7ea7b4a1 AQ |
317 | /** |
318 | * struct batadv_vlan_tt - VLAN specific TT attributes | |
7ea7b4a1 AQ |
319 | */ |
320 | struct batadv_vlan_tt { | |
8b84cc4f | 321 | /** @crc: CRC32 checksum of the entries belonging to this vlan */ |
6b5e971a | 322 | u32 crc; |
8b84cc4f SE |
323 | |
324 | /** @num_entries: number of TT entries for this VLAN */ | |
7ea7b4a1 AQ |
325 | atomic_t num_entries; |
326 | }; | |
327 | ||
328 | /** | |
1a321b0d | 329 | * struct batadv_orig_node_vlan - VLAN specific data per orig_node |
7ea7b4a1 AQ |
330 | */ |
331 | struct batadv_orig_node_vlan { | |
8b84cc4f | 332 | /** @vid: the VLAN identifier */ |
7ea7b4a1 | 333 | unsigned short vid; |
8b84cc4f SE |
334 | |
335 | /** @tt: VLAN specific TT attributes */ | |
7ea7b4a1 | 336 | struct batadv_vlan_tt tt; |
8b84cc4f | 337 | |
a07369d7 | 338 | /** @list: list node for &batadv_orig_node.vlan_list */ |
d0fa4f3f | 339 | struct hlist_node list; |
8b84cc4f SE |
340 | |
341 | /** | |
342 | * @refcount: number of context where this object is currently in use | |
343 | */ | |
161a3be9 | 344 | struct kref refcount; |
8b84cc4f SE |
345 | |
346 | /** @rcu: struct used for freeing in a RCU-safe manner */ | |
7ea7b4a1 AQ |
347 | struct rcu_head rcu; |
348 | }; | |
349 | ||
bbad0a5e AQ |
350 | /** |
351 | * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members | |
bbad0a5e AQ |
352 | */ |
353 | struct batadv_orig_bat_iv { | |
8b84cc4f | 354 | /** |
dee222c7 SE |
355 | * @ogm_cnt_lock: lock protecting &batadv_orig_ifinfo_bat_iv.bcast_own, |
356 | * &batadv_orig_ifinfo_bat_iv.bcast_own_sum, | |
357 | * &batadv_neigh_ifinfo_bat_iv.bat_iv.real_bits and | |
358 | * &batadv_neigh_ifinfo_bat_iv.real_packet_count | |
bbad0a5e AQ |
359 | */ |
360 | spinlock_t ogm_cnt_lock; | |
361 | }; | |
362 | ||
2c53040f | 363 | /** |
b6d0ab7c | 364 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
c6c8fea2 | 365 | */ |
56303d34 | 366 | struct batadv_orig_node { |
8b84cc4f | 367 | /** @orig: originator ethernet address */ |
6b5e971a | 368 | u8 orig[ETH_ALEN]; |
8b84cc4f SE |
369 | |
370 | /** @ifinfo_list: list for routers per outgoing interface */ | |
7351a482 | 371 | struct hlist_head ifinfo_list; |
8b84cc4f SE |
372 | |
373 | /** | |
374 | * @last_bonding_candidate: pointer to last ifinfo of last used router | |
375 | */ | |
f3b3d901 | 376 | struct batadv_orig_ifinfo *last_bonding_candidate; |
8b84cc4f | 377 | |
17224474 | 378 | #ifdef CONFIG_BATMAN_ADV_DAT |
8b84cc4f | 379 | /** @dat_addr: address of the orig node in the distributed hash */ |
785ea114 | 380 | batadv_dat_addr_t dat_addr; |
17224474 | 381 | #endif |
8b84cc4f SE |
382 | |
383 | /** @last_seen: time when last packet from this node was received */ | |
d7b2a97e | 384 | unsigned long last_seen; |
8b84cc4f SE |
385 | |
386 | /** | |
387 | * @bcast_seqno_reset: time when the broadcast seqno window was reset | |
388 | */ | |
c6c8fea2 | 389 | unsigned long bcast_seqno_reset; |
8b84cc4f | 390 | |
60432d75 | 391 | #ifdef CONFIG_BATMAN_ADV_MCAST |
8b84cc4f SE |
392 | /** |
393 | * @mcast_handler_lock: synchronizes mcast-capability and -flag changes | |
394 | */ | |
8a4023c5 | 395 | spinlock_t mcast_handler_lock; |
8b84cc4f SE |
396 | |
397 | /** @mcast_flags: multicast flags announced by the orig node */ | |
6b5e971a | 398 | u8 mcast_flags; |
8b84cc4f SE |
399 | |
400 | /** | |
401 | * @mcast_want_all_unsnoopables_node: a list node for the | |
402 | * mcast.want_all_unsnoopables list | |
403 | */ | |
ab49886e | 404 | struct hlist_node mcast_want_all_unsnoopables_node; |
8b84cc4f SE |
405 | |
406 | /** | |
407 | * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4 | |
408 | * list | |
409 | */ | |
4c8755d6 | 410 | struct hlist_node mcast_want_all_ipv4_node; |
8b84cc4f SE |
411 | /** |
412 | * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6 | |
413 | * list | |
414 | */ | |
4c8755d6 | 415 | struct hlist_node mcast_want_all_ipv6_node; |
61caf3d1 LL |
416 | |
417 | /** | |
418 | * @mcast_want_all_rtr4_node: a list node for the mcast.want_all_rtr4 | |
419 | * list | |
420 | */ | |
421 | struct hlist_node mcast_want_all_rtr4_node; | |
422 | /** | |
423 | * @mcast_want_all_rtr6_node: a list node for the mcast.want_all_rtr6 | |
424 | * list | |
425 | */ | |
426 | struct hlist_node mcast_want_all_rtr6_node; | |
60432d75 | 427 | #endif |
8b84cc4f SE |
428 | |
429 | /** @capabilities: announced capabilities of this originator */ | |
65d7d460 | 430 | unsigned long capabilities; |
8b84cc4f SE |
431 | |
432 | /** | |
433 | * @capa_initialized: bitfield to remember whether a capability was | |
434 | * initialized | |
435 | */ | |
ac4eebd4 | 436 | unsigned long capa_initialized; |
8b84cc4f SE |
437 | |
438 | /** @last_ttvn: last seen translation table version number */ | |
88a32c9a | 439 | atomic_t last_ttvn; |
8b84cc4f SE |
440 | |
441 | /** @tt_buff: last tt changeset this node received from the orig node */ | |
2dafb49d | 442 | unsigned char *tt_buff; |
8b84cc4f SE |
443 | |
444 | /** | |
445 | * @tt_buff_len: length of the last tt changeset this node received | |
446 | * from the orig node | |
447 | */ | |
6b5e971a | 448 | s16 tt_buff_len; |
8b84cc4f SE |
449 | |
450 | /** @tt_buff_lock: lock that protects tt_buff and tt_buff_len */ | |
451 | spinlock_t tt_buff_lock; | |
452 | ||
453 | /** | |
bccb48c8 SE |
454 | * @tt_lock: avoids concurrent read from and write to the table. Table |
455 | * update is made up of two operations (data structure update and | |
69fed4ce | 456 | * metadata -CRC/TTVN-recalculation) and they have to be executed |
8b84cc4f SE |
457 | * atomically in order to avoid another thread to read the |
458 | * table/metadata between those. | |
459 | */ | |
a70a9aa9 | 460 | spinlock_t tt_lock; |
8b84cc4f SE |
461 | |
462 | /** | |
463 | * @bcast_bits: bitfield containing the info which payload broadcast | |
464 | * originated from this orig node this host already has seen (relative | |
465 | * to last_bcast_seqno) | |
466 | */ | |
42d0b044 | 467 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
8b84cc4f SE |
468 | |
469 | /** | |
470 | * @last_bcast_seqno: last broadcast sequence number received by this | |
471 | * host | |
472 | */ | |
6b5e971a | 473 | u32 last_bcast_seqno; |
8b84cc4f SE |
474 | |
475 | /** | |
476 | * @neigh_list: list of potential next hop neighbor towards this orig | |
477 | * node | |
478 | */ | |
9591a79f | 479 | struct hlist_head neigh_list; |
8b84cc4f SE |
480 | |
481 | /** | |
482 | * @neigh_list_lock: lock protecting neigh_list, ifinfo_list, | |
483 | * last_bonding_candidate and router | |
15c2ed75 | 484 | */ |
88a32c9a | 485 | spinlock_t neigh_list_lock; |
8b84cc4f | 486 | |
a07369d7 | 487 | /** @hash_entry: hlist node for &batadv_priv.orig_hash */ |
7aadf889 | 488 | struct hlist_node hash_entry; |
8b84cc4f SE |
489 | |
490 | /** @bat_priv: pointer to soft_iface this orig node belongs to */ | |
56303d34 | 491 | struct batadv_priv *bat_priv; |
8b84cc4f SE |
492 | |
493 | /** @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno */ | |
6e215fd8 | 494 | spinlock_t bcast_seqno_lock; |
8b84cc4f SE |
495 | |
496 | /** @refcount: number of contexts the object is used */ | |
7c124391 | 497 | struct kref refcount; |
8b84cc4f SE |
498 | |
499 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
88a32c9a | 500 | struct rcu_head rcu; |
8b84cc4f | 501 | |
d56b1705 | 502 | #ifdef CONFIG_BATMAN_ADV_NC |
8b84cc4f | 503 | /** @in_coding_list: list of nodes this orig can hear */ |
d56b1705 | 504 | struct list_head in_coding_list; |
8b84cc4f SE |
505 | |
506 | /** @out_coding_list: list of nodes that can hear this orig */ | |
d56b1705 | 507 | struct list_head out_coding_list; |
8b84cc4f SE |
508 | |
509 | /** @in_coding_list_lock: protects in_coding_list */ | |
510 | spinlock_t in_coding_list_lock; | |
511 | ||
512 | /** @out_coding_list_lock: protects out_coding_list */ | |
513 | spinlock_t out_coding_list_lock; | |
d56b1705 | 514 | #endif |
8b84cc4f SE |
515 | |
516 | /** @fragments: array with heads for fragment chains */ | |
610bfc6b | 517 | struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; |
8b84cc4f SE |
518 | |
519 | /** | |
520 | * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by | |
521 | * the originator represented by this object | |
522 | */ | |
d0fa4f3f | 523 | struct hlist_head vlan_list; |
8b84cc4f SE |
524 | |
525 | /** @vlan_list_lock: lock protecting vlan_list */ | |
526 | spinlock_t vlan_list_lock; | |
527 | ||
528 | /** @bat_iv: B.A.T.M.A.N. IV private structure */ | |
bbad0a5e | 529 | struct batadv_orig_bat_iv bat_iv; |
c6c8fea2 SE |
530 | }; |
531 | ||
17cf0ea4 ML |
532 | /** |
533 | * enum batadv_orig_capabilities - orig node capabilities | |
17cf0ea4 ML |
534 | */ |
535 | enum batadv_orig_capabilities { | |
8b84cc4f SE |
536 | /** |
537 | * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table | |
538 | * enabled | |
539 | */ | |
65d7d460 | 540 | BATADV_ORIG_CAPA_HAS_DAT, |
8b84cc4f SE |
541 | |
542 | /** @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled */ | |
4635469f | 543 | BATADV_ORIG_CAPA_HAS_NC, |
8b84cc4f SE |
544 | |
545 | /** @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability */ | |
ac4eebd4 | 546 | BATADV_ORIG_CAPA_HAS_TT, |
8b84cc4f SE |
547 | |
548 | /** | |
549 | * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability | |
550 | * (= orig node announces a tvlv of type BATADV_TVLV_MCAST) | |
551 | */ | |
9c936e3f | 552 | BATADV_ORIG_CAPA_HAS_MCAST, |
17cf0ea4 ML |
553 | }; |
554 | ||
88a32c9a ML |
555 | /** |
556 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
88a32c9a | 557 | */ |
56303d34 | 558 | struct batadv_gw_node { |
a07369d7 | 559 | /** @list: list node for &batadv_priv_gw.list */ |
c6c8fea2 | 560 | struct hlist_node list; |
8b84cc4f SE |
561 | |
562 | /** @orig_node: pointer to corresponding orig node */ | |
56303d34 | 563 | struct batadv_orig_node *orig_node; |
8b84cc4f SE |
564 | |
565 | /** @bandwidth_down: advertised uplink download bandwidth */ | |
6b5e971a | 566 | u32 bandwidth_down; |
8b84cc4f SE |
567 | |
568 | /** @bandwidth_up: advertised uplink upload bandwidth */ | |
6b5e971a | 569 | u32 bandwidth_up; |
8b84cc4f SE |
570 | |
571 | /** @refcount: number of contexts the object is used */ | |
e7aed321 | 572 | struct kref refcount; |
8b84cc4f SE |
573 | |
574 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
c6c8fea2 SE |
575 | struct rcu_head rcu; |
576 | }; | |
577 | ||
eb1e011a | 578 | DECLARE_EWMA(throughput, 10, 8) |
162bd64c LL |
579 | |
580 | /** | |
581 | * struct batadv_hardif_neigh_node_bat_v - B.A.T.M.A.N. V private neighbor | |
582 | * information | |
162bd64c LL |
583 | */ |
584 | struct batadv_hardif_neigh_node_bat_v { | |
8b84cc4f | 585 | /** @throughput: ewma link throughput towards this neighbor */ |
162bd64c | 586 | struct ewma_throughput throughput; |
8b84cc4f SE |
587 | |
588 | /** @elp_interval: time interval between two ELP transmissions */ | |
162bd64c | 589 | u32 elp_interval; |
8b84cc4f SE |
590 | |
591 | /** @elp_latest_seqno: latest and best known ELP sequence number */ | |
162bd64c | 592 | u32 elp_latest_seqno; |
8b84cc4f SE |
593 | |
594 | /** | |
595 | * @last_unicast_tx: when the last unicast packet has been sent to this | |
596 | * neighbor | |
597 | */ | |
95d39278 | 598 | unsigned long last_unicast_tx; |
8b84cc4f SE |
599 | |
600 | /** @metric_work: work queue callback item for metric update */ | |
c833484e | 601 | struct work_struct metric_work; |
162bd64c LL |
602 | }; |
603 | ||
cef63419 | 604 | /** |
d1f68250 | 605 | * struct batadv_hardif_neigh_node - unique neighbor per hard-interface |
cef63419 ML |
606 | */ |
607 | struct batadv_hardif_neigh_node { | |
a07369d7 | 608 | /** @list: list node for &batadv_hard_iface.neigh_list */ |
cef63419 | 609 | struct hlist_node list; |
8b84cc4f SE |
610 | |
611 | /** @addr: the MAC address of the neighboring interface */ | |
cef63419 | 612 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
613 | |
614 | /** | |
615 | * @orig: the address of the originator this neighbor node belongs to | |
616 | */ | |
3111beed | 617 | u8 orig[ETH_ALEN]; |
8b84cc4f SE |
618 | |
619 | /** @if_incoming: pointer to incoming hard-interface */ | |
cef63419 | 620 | struct batadv_hard_iface *if_incoming; |
8b84cc4f SE |
621 | |
622 | /** @last_seen: when last packet via this neighbor was received */ | |
cef63419 | 623 | unsigned long last_seen; |
8b84cc4f | 624 | |
162bd64c | 625 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
8b84cc4f | 626 | /** @bat_v: B.A.T.M.A.N. V private data */ |
162bd64c LL |
627 | struct batadv_hardif_neigh_node_bat_v bat_v; |
628 | #endif | |
8b84cc4f SE |
629 | |
630 | /** @refcount: number of contexts the object is used */ | |
90f564df | 631 | struct kref refcount; |
8b84cc4f SE |
632 | |
633 | /** @rcu: struct used for freeing in a RCU-safe manner */ | |
cef63419 ML |
634 | struct rcu_head rcu; |
635 | }; | |
636 | ||
88a32c9a | 637 | /** |
89652331 | 638 | * struct batadv_neigh_node - structure for single hops neighbors |
89652331 SW |
639 | */ |
640 | struct batadv_neigh_node { | |
a07369d7 | 641 | /** @list: list node for &batadv_orig_node.neigh_list */ |
89652331 | 642 | struct hlist_node list; |
8b84cc4f SE |
643 | |
644 | /** @orig_node: pointer to corresponding orig_node */ | |
89652331 | 645 | struct batadv_orig_node *orig_node; |
8b84cc4f SE |
646 | |
647 | /** @addr: the MAC address of the neighboring interface */ | |
6b5e971a | 648 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
649 | |
650 | /** @ifinfo_list: list for routing metrics per outgoing interface */ | |
89652331 | 651 | struct hlist_head ifinfo_list; |
8b84cc4f SE |
652 | |
653 | /** @ifinfo_lock: lock protecting ifinfo_list and its members */ | |
654 | spinlock_t ifinfo_lock; | |
655 | ||
656 | /** @if_incoming: pointer to incoming hard-interface */ | |
89652331 | 657 | struct batadv_hard_iface *if_incoming; |
8b84cc4f SE |
658 | |
659 | /** @last_seen: when last packet via this neighbor was received */ | |
89652331 | 660 | unsigned long last_seen; |
8b84cc4f SE |
661 | |
662 | /** @hardif_neigh: hardif_neigh of this neighbor */ | |
abe59c65 | 663 | struct batadv_hardif_neigh_node *hardif_neigh; |
8b84cc4f SE |
664 | |
665 | /** @refcount: number of contexts the object is used */ | |
77ae32e8 | 666 | struct kref refcount; |
8b84cc4f SE |
667 | |
668 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
89652331 SW |
669 | struct rcu_head rcu; |
670 | }; | |
671 | ||
1b371d13 | 672 | /** |
1a321b0d | 673 | * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing |
d1f68250 | 674 | * interface for B.A.T.M.A.N. IV |
0538f759 | 675 | */ |
89652331 | 676 | struct batadv_neigh_ifinfo_bat_iv { |
8b84cc4f | 677 | /** @tq_recv: ring buffer of received TQ values from this neigh node */ |
6b5e971a | 678 | u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
8b84cc4f SE |
679 | |
680 | /** @tq_index: ring buffer index */ | |
6b5e971a | 681 | u8 tq_index; |
8b84cc4f SE |
682 | |
683 | /** | |
684 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
685 | */ | |
6b5e971a | 686 | u8 tq_avg; |
8b84cc4f SE |
687 | |
688 | /** | |
689 | * @real_bits: bitfield containing the number of OGMs received from this | |
690 | * neigh node (relative to orig_node->last_real_seqno) | |
691 | */ | |
0538f759 | 692 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
8b84cc4f SE |
693 | |
694 | /** @real_packet_count: counted result of real_bits */ | |
6b5e971a | 695 | u8 real_packet_count; |
0538f759 AQ |
696 | }; |
697 | ||
162bd64c LL |
698 | /** |
699 | * struct batadv_neigh_ifinfo_bat_v - neighbor information per outgoing | |
700 | * interface for B.A.T.M.A.N. V | |
162bd64c LL |
701 | */ |
702 | struct batadv_neigh_ifinfo_bat_v { | |
8b84cc4f SE |
703 | /** |
704 | * @throughput: last throughput metric received from originator via this | |
705 | * neigh | |
706 | */ | |
162bd64c | 707 | u32 throughput; |
8b84cc4f SE |
708 | |
709 | /** @last_seqno: last sequence number known for this neighbor */ | |
9323158e | 710 | u32 last_seqno; |
162bd64c LL |
711 | }; |
712 | ||
1b371d13 SW |
713 | /** |
714 | * struct batadv_neigh_ifinfo - neighbor information per outgoing interface | |
c6c8fea2 | 715 | */ |
89652331 | 716 | struct batadv_neigh_ifinfo { |
a07369d7 | 717 | /** @list: list node for &batadv_neigh_node.ifinfo_list */ |
9591a79f | 718 | struct hlist_node list; |
8b84cc4f SE |
719 | |
720 | /** @if_outgoing: pointer to outgoing hard-interface */ | |
89652331 | 721 | struct batadv_hard_iface *if_outgoing; |
8b84cc4f SE |
722 | |
723 | /** @bat_iv: B.A.T.M.A.N. IV private structure */ | |
89652331 | 724 | struct batadv_neigh_ifinfo_bat_iv bat_iv; |
8b84cc4f | 725 | |
162bd64c | 726 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
8b84cc4f | 727 | /** @bat_v: B.A.T.M.A.N. V private data */ |
162bd64c LL |
728 | struct batadv_neigh_ifinfo_bat_v bat_v; |
729 | #endif | |
8b84cc4f SE |
730 | |
731 | /** @last_ttl: last received ttl from this neigh node */ | |
6b5e971a | 732 | u8 last_ttl; |
8b84cc4f SE |
733 | |
734 | /** @refcount: number of contexts the object is used */ | |
962c6832 | 735 | struct kref refcount; |
8b84cc4f SE |
736 | |
737 | /** @rcu: struct used for freeing in a RCU-safe manner */ | |
88a32c9a | 738 | struct rcu_head rcu; |
c6c8fea2 SE |
739 | }; |
740 | ||
426fc6c8 SE |
741 | #ifdef CONFIG_BATMAN_ADV_BLA |
742 | ||
88a32c9a ML |
743 | /** |
744 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
88a32c9a | 745 | */ |
56303d34 | 746 | struct batadv_bcast_duplist_entry { |
bccb48c8 | 747 | /** @orig: mac address of orig node originating the broadcast */ |
6b5e971a | 748 | u8 orig[ETH_ALEN]; |
8b84cc4f SE |
749 | |
750 | /** @crc: crc32 checksum of broadcast payload */ | |
004e86fc | 751 | __be32 crc; |
8b84cc4f SE |
752 | |
753 | /** @entrytime: time when the broadcast packet was received */ | |
fe2da6ff SW |
754 | unsigned long entrytime; |
755 | }; | |
7a5cc242 | 756 | #endif |
c6c8fea2 | 757 | |
88a32c9a ML |
758 | /** |
759 | * enum batadv_counters - indices for traffic counters | |
88a32c9a | 760 | */ |
d69909d2 | 761 | enum batadv_counters { |
8b84cc4f | 762 | /** @BATADV_CNT_TX: transmitted payload traffic packet counter */ |
1c9b0550 | 763 | BATADV_CNT_TX, |
8b84cc4f SE |
764 | |
765 | /** @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter */ | |
1c9b0550 | 766 | BATADV_CNT_TX_BYTES, |
8b84cc4f SE |
767 | |
768 | /** | |
769 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet | |
770 | * counter | |
771 | */ | |
1c9b0550 | 772 | BATADV_CNT_TX_DROPPED, |
8b84cc4f SE |
773 | |
774 | /** @BATADV_CNT_RX: received payload traffic packet counter */ | |
1c9b0550 | 775 | BATADV_CNT_RX, |
8b84cc4f SE |
776 | |
777 | /** @BATADV_CNT_RX_BYTES: received payload traffic bytes counter */ | |
1c9b0550 | 778 | BATADV_CNT_RX_BYTES, |
8b84cc4f SE |
779 | |
780 | /** @BATADV_CNT_FORWARD: forwarded payload traffic packet counter */ | |
d69909d2 | 781 | BATADV_CNT_FORWARD, |
8b84cc4f SE |
782 | |
783 | /** | |
784 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
785 | */ | |
d69909d2 | 786 | BATADV_CNT_FORWARD_BYTES, |
8b84cc4f SE |
787 | |
788 | /** | |
789 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet | |
790 | * counter | |
791 | */ | |
d69909d2 | 792 | BATADV_CNT_MGMT_TX, |
8b84cc4f SE |
793 | |
794 | /** | |
795 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes | |
796 | * counter | |
797 | */ | |
d69909d2 | 798 | BATADV_CNT_MGMT_TX_BYTES, |
8b84cc4f SE |
799 | |
800 | /** | |
801 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
802 | */ | |
d69909d2 | 803 | BATADV_CNT_MGMT_RX, |
8b84cc4f SE |
804 | |
805 | /** | |
806 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes | |
807 | * counter | |
808 | */ | |
d69909d2 | 809 | BATADV_CNT_MGMT_RX_BYTES, |
8b84cc4f SE |
810 | |
811 | /** @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter */ | |
ee75ed88 | 812 | BATADV_CNT_FRAG_TX, |
8b84cc4f SE |
813 | |
814 | /** | |
815 | * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
816 | */ | |
ee75ed88 | 817 | BATADV_CNT_FRAG_TX_BYTES, |
8b84cc4f SE |
818 | |
819 | /** @BATADV_CNT_FRAG_RX: received fragment traffic packet counter */ | |
610bfc6b | 820 | BATADV_CNT_FRAG_RX, |
8b84cc4f SE |
821 | |
822 | /** | |
823 | * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
824 | */ | |
610bfc6b | 825 | BATADV_CNT_FRAG_RX_BYTES, |
8b84cc4f SE |
826 | |
827 | /** @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter */ | |
610bfc6b | 828 | BATADV_CNT_FRAG_FWD, |
8b84cc4f SE |
829 | |
830 | /** | |
831 | * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
832 | */ | |
610bfc6b | 833 | BATADV_CNT_FRAG_FWD_BYTES, |
8b84cc4f SE |
834 | |
835 | /** | |
836 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter | |
837 | */ | |
d69909d2 | 838 | BATADV_CNT_TT_REQUEST_TX, |
8b84cc4f SE |
839 | |
840 | /** @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter */ | |
d69909d2 | 841 | BATADV_CNT_TT_REQUEST_RX, |
8b84cc4f SE |
842 | |
843 | /** | |
844 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet | |
845 | * counter | |
846 | */ | |
d69909d2 | 847 | BATADV_CNT_TT_RESPONSE_TX, |
8b84cc4f SE |
848 | |
849 | /** | |
850 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
851 | */ | |
d69909d2 | 852 | BATADV_CNT_TT_RESPONSE_RX, |
8b84cc4f SE |
853 | |
854 | /** | |
855 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet | |
856 | * counter | |
857 | */ | |
d69909d2 | 858 | BATADV_CNT_TT_ROAM_ADV_TX, |
8b84cc4f SE |
859 | |
860 | /** | |
861 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
862 | */ | |
d69909d2 | 863 | BATADV_CNT_TT_ROAM_ADV_RX, |
8b84cc4f | 864 | |
4046b24a | 865 | #ifdef CONFIG_BATMAN_ADV_DAT |
8b84cc4f SE |
866 | /** |
867 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
868 | */ | |
4046b24a | 869 | BATADV_CNT_DAT_GET_TX, |
8b84cc4f SE |
870 | |
871 | /** @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter */ | |
4046b24a | 872 | BATADV_CNT_DAT_GET_RX, |
8b84cc4f SE |
873 | |
874 | /** | |
875 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
876 | */ | |
4046b24a | 877 | BATADV_CNT_DAT_PUT_TX, |
8b84cc4f SE |
878 | |
879 | /** @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter */ | |
4046b24a | 880 | BATADV_CNT_DAT_PUT_RX, |
8b84cc4f SE |
881 | |
882 | /** | |
883 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic | |
884 | * packet counter | |
885 | */ | |
4046b24a | 886 | BATADV_CNT_DAT_CACHED_REPLY_TX, |
3c12de9a | 887 | #endif |
8b84cc4f | 888 | |
3c12de9a | 889 | #ifdef CONFIG_BATMAN_ADV_NC |
8b84cc4f SE |
890 | /** |
891 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter | |
892 | */ | |
3c12de9a | 893 | BATADV_CNT_NC_CODE, |
8b84cc4f SE |
894 | |
895 | /** | |
896 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes | |
897 | * counter | |
898 | */ | |
3c12de9a | 899 | BATADV_CNT_NC_CODE_BYTES, |
8b84cc4f SE |
900 | |
901 | /** | |
902 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet | |
903 | * counter | |
904 | */ | |
3c12de9a | 905 | BATADV_CNT_NC_RECODE, |
8b84cc4f SE |
906 | |
907 | /** | |
908 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes | |
909 | * counter | |
910 | */ | |
3c12de9a | 911 | BATADV_CNT_NC_RECODE_BYTES, |
8b84cc4f SE |
912 | |
913 | /** | |
914 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc | |
915 | * decoding | |
916 | */ | |
612d2b4f | 917 | BATADV_CNT_NC_BUFFER, |
8b84cc4f SE |
918 | |
919 | /** | |
920 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter | |
921 | */ | |
2df5278b | 922 | BATADV_CNT_NC_DECODE, |
8b84cc4f SE |
923 | |
924 | /** | |
925 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes | |
926 | * counter | |
927 | */ | |
2df5278b | 928 | BATADV_CNT_NC_DECODE_BYTES, |
8b84cc4f SE |
929 | |
930 | /** | |
931 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic | |
932 | * packet counter | |
933 | */ | |
2df5278b | 934 | BATADV_CNT_NC_DECODE_FAILED, |
8b84cc4f SE |
935 | |
936 | /** | |
937 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in | |
938 | * promisc mode. | |
939 | */ | |
2df5278b | 940 | BATADV_CNT_NC_SNIFFED, |
4046b24a | 941 | #endif |
8b84cc4f SE |
942 | |
943 | /** @BATADV_CNT_NUM: number of traffic counters */ | |
d69909d2 | 944 | BATADV_CNT_NUM, |
f8214865 MH |
945 | }; |
946 | ||
807736f6 SE |
947 | /** |
948 | * struct batadv_priv_tt - per mesh interface translation table data | |
807736f6 SE |
949 | */ |
950 | struct batadv_priv_tt { | |
8b84cc4f | 951 | /** @vn: translation table version number */ |
807736f6 | 952 | atomic_t vn; |
8b84cc4f SE |
953 | |
954 | /** | |
955 | * @ogm_append_cnt: counter of number of OGMs containing the local tt | |
956 | * diff | |
957 | */ | |
807736f6 | 958 | atomic_t ogm_append_cnt; |
8b84cc4f SE |
959 | |
960 | /** @local_changes: changes registered in an originator interval */ | |
807736f6 | 961 | atomic_t local_changes; |
8b84cc4f SE |
962 | |
963 | /** | |
964 | * @changes_list: tracks tt local changes within an originator interval | |
965 | */ | |
807736f6 | 966 | struct list_head changes_list; |
8b84cc4f SE |
967 | |
968 | /** @local_hash: local translation table hash table */ | |
807736f6 | 969 | struct batadv_hashtable *local_hash; |
8b84cc4f SE |
970 | |
971 | /** @global_hash: global translation table hash table */ | |
807736f6 | 972 | struct batadv_hashtable *global_hash; |
8b84cc4f SE |
973 | |
974 | /** @req_list: list of pending & unanswered tt_requests */ | |
7c26a53b | 975 | struct hlist_head req_list; |
8b84cc4f SE |
976 | |
977 | /** | |
978 | * @roam_list: list of the last roaming events of each client limiting | |
979 | * the number of roaming events to avoid route flapping | |
980 | */ | |
807736f6 | 981 | struct list_head roam_list; |
8b84cc4f SE |
982 | |
983 | /** @changes_list_lock: lock protecting changes_list */ | |
984 | spinlock_t changes_list_lock; | |
985 | ||
986 | /** @req_list_lock: lock protecting req_list */ | |
987 | spinlock_t req_list_lock; | |
988 | ||
989 | /** @roam_list_lock: lock protecting roam_list */ | |
990 | spinlock_t roam_list_lock; | |
991 | ||
992 | /** @last_changeset: last tt changeset this host has generated */ | |
807736f6 | 993 | unsigned char *last_changeset; |
8b84cc4f SE |
994 | |
995 | /** | |
996 | * @last_changeset_len: length of last tt changeset this host has | |
997 | * generated | |
998 | */ | |
6b5e971a | 999 | s16 last_changeset_len; |
8b84cc4f SE |
1000 | |
1001 | /** | |
1002 | * @last_changeset_lock: lock protecting last_changeset & | |
1003 | * last_changeset_len | |
1004 | */ | |
88a32c9a | 1005 | spinlock_t last_changeset_lock; |
8b84cc4f SE |
1006 | |
1007 | /** | |
1008 | * @commit_lock: prevents from executing a local TT commit while reading | |
bccb48c8 | 1009 | * the local table. The local TT commit is made up of two operations |
69fed4ce | 1010 | * (data structure update and metadata -CRC/TTVN- recalculation) and |
8b84cc4f SE |
1011 | * they have to be executed atomically in order to avoid another thread |
1012 | * to read the table/metadata between those. | |
1013 | */ | |
a70a9aa9 | 1014 | spinlock_t commit_lock; |
8b84cc4f SE |
1015 | |
1016 | /** @work: work queue callback item for translation table purging */ | |
807736f6 SE |
1017 | struct delayed_work work; |
1018 | }; | |
1019 | ||
426fc6c8 SE |
1020 | #ifdef CONFIG_BATMAN_ADV_BLA |
1021 | ||
88a32c9a | 1022 | /** |
bccb48c8 | 1023 | * struct batadv_priv_bla - per mesh interface bridge loop avoidance data |
88a32c9a | 1024 | */ |
807736f6 | 1025 | struct batadv_priv_bla { |
8b84cc4f | 1026 | /** @num_requests: number of bla requests in flight */ |
88a32c9a | 1027 | atomic_t num_requests; |
8b84cc4f SE |
1028 | |
1029 | /** | |
1030 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
1031 | */ | |
807736f6 | 1032 | struct batadv_hashtable *claim_hash; |
8b84cc4f SE |
1033 | |
1034 | /** | |
1035 | * @backbone_hash: hash table containing all detected backbone gateways | |
1036 | */ | |
807736f6 | 1037 | struct batadv_hashtable *backbone_hash; |
8b84cc4f SE |
1038 | |
1039 | /** @loopdetect_addr: MAC address used for own loopdetection frames */ | |
cd9c7bfb | 1040 | u8 loopdetect_addr[ETH_ALEN]; |
8b84cc4f SE |
1041 | |
1042 | /** | |
1043 | * @loopdetect_lasttime: time when the loopdetection frames were sent | |
1044 | */ | |
cd9c7bfb | 1045 | unsigned long loopdetect_lasttime; |
8b84cc4f SE |
1046 | |
1047 | /** | |
1048 | * @loopdetect_next: how many periods to wait for the next loopdetect | |
1049 | * process | |
1050 | */ | |
cd9c7bfb | 1051 | atomic_t loopdetect_next; |
8b84cc4f SE |
1052 | |
1053 | /** | |
1054 | * @bcast_duplist: recently received broadcast packets array (for | |
1055 | * broadcast duplicate suppression) | |
1056 | */ | |
807736f6 | 1057 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; |
8b84cc4f SE |
1058 | |
1059 | /** | |
1060 | * @bcast_duplist_curr: index of last broadcast packet added to | |
1061 | * bcast_duplist | |
1062 | */ | |
807736f6 | 1063 | int bcast_duplist_curr; |
8b84cc4f SE |
1064 | |
1065 | /** | |
1066 | * @bcast_duplist_lock: lock protecting bcast_duplist & | |
1067 | * bcast_duplist_curr | |
1068 | */ | |
7dac7b76 | 1069 | spinlock_t bcast_duplist_lock; |
8b84cc4f SE |
1070 | |
1071 | /** @claim_dest: local claim data (e.g. claim group) */ | |
807736f6 | 1072 | struct batadv_bla_claim_dst claim_dest; |
8b84cc4f SE |
1073 | |
1074 | /** @work: work queue callback item for cleanups & bla announcements */ | |
807736f6 SE |
1075 | struct delayed_work work; |
1076 | }; | |
1077 | #endif | |
1078 | ||
426fc6c8 SE |
1079 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
1080 | ||
88a32c9a | 1081 | /** |
1a321b0d | 1082 | * struct batadv_priv_debug_log - debug logging data |
88a32c9a | 1083 | */ |
0abf5d81 | 1084 | struct batadv_priv_debug_log { |
c08dd06b | 1085 | /** @log_buff: buffer holding the logs (ring buffer) */ |
0abf5d81 | 1086 | char log_buff[BATADV_LOG_BUF_LEN]; |
8b84cc4f SE |
1087 | |
1088 | /** @log_start: index of next character to read */ | |
0abf5d81 | 1089 | unsigned long log_start; |
8b84cc4f SE |
1090 | |
1091 | /** @log_end: index of next character to write */ | |
0abf5d81 | 1092 | unsigned long log_end; |
8b84cc4f SE |
1093 | |
1094 | /** @lock: lock protecting log_buff, log_start & log_end */ | |
1095 | spinlock_t lock; | |
1096 | ||
1097 | /** @queue_wait: log reader's wait queue */ | |
0abf5d81 ML |
1098 | wait_queue_head_t queue_wait; |
1099 | }; | |
1100 | #endif | |
1101 | ||
88a32c9a ML |
1102 | /** |
1103 | * struct batadv_priv_gw - per mesh interface gateway data | |
88a32c9a | 1104 | */ |
807736f6 | 1105 | struct batadv_priv_gw { |
8b84cc4f | 1106 | /** @gateway_list: list of available gateway nodes */ |
70ea5cee | 1107 | struct hlist_head gateway_list; |
8b84cc4f | 1108 | |
9264c85c | 1109 | /** @list_lock: lock protecting gateway_list, curr_gw, generation */ |
8b84cc4f SE |
1110 | spinlock_t list_lock; |
1111 | ||
1112 | /** @curr_gw: pointer to currently selected gateway node */ | |
1113 | struct batadv_gw_node __rcu *curr_gw; | |
1114 | ||
9264c85c SE |
1115 | /** @generation: current (generation) sequence number */ |
1116 | unsigned int generation; | |
1117 | ||
8b84cc4f SE |
1118 | /** |
1119 | * @mode: gateway operation: off, client or server (see batadv_gw_modes) | |
1120 | */ | |
3a24a63e | 1121 | atomic_t mode; |
8b84cc4f SE |
1122 | |
1123 | /** @sel_class: gateway selection class (applies if gw_mode client) */ | |
3a24a63e | 1124 | atomic_t sel_class; |
8b84cc4f SE |
1125 | |
1126 | /** | |
1127 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode | |
1128 | * server) | |
1129 | */ | |
414254e3 | 1130 | atomic_t bandwidth_down; |
8b84cc4f SE |
1131 | |
1132 | /** | |
1133 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
1134 | */ | |
414254e3 | 1135 | atomic_t bandwidth_up; |
8b84cc4f SE |
1136 | |
1137 | /** @reselect: bool indicating a gateway re-selection is in progress */ | |
807736f6 SE |
1138 | atomic_t reselect; |
1139 | }; | |
1140 | ||
ef261577 ML |
1141 | /** |
1142 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
ef261577 ML |
1143 | */ |
1144 | struct batadv_priv_tvlv { | |
8b84cc4f SE |
1145 | /** |
1146 | * @container_list: list of registered tvlv containers to be sent with | |
1147 | * each OGM | |
1148 | */ | |
ef261577 | 1149 | struct hlist_head container_list; |
8b84cc4f SE |
1150 | |
1151 | /** @handler_list: list of the various tvlv content handlers */ | |
ef261577 | 1152 | struct hlist_head handler_list; |
8b84cc4f SE |
1153 | |
1154 | /** @container_list_lock: protects tvlv container list access */ | |
1155 | spinlock_t container_list_lock; | |
1156 | ||
1157 | /** @handler_list_lock: protects handler list access */ | |
1158 | spinlock_t handler_list_lock; | |
ef261577 ML |
1159 | }; |
1160 | ||
426fc6c8 SE |
1161 | #ifdef CONFIG_BATMAN_ADV_DAT |
1162 | ||
785ea114 AQ |
1163 | /** |
1164 | * struct batadv_priv_dat - per mesh interface DAT private data | |
785ea114 AQ |
1165 | */ |
1166 | struct batadv_priv_dat { | |
8b84cc4f | 1167 | /** @addr: node DAT address */ |
785ea114 | 1168 | batadv_dat_addr_t addr; |
8b84cc4f SE |
1169 | |
1170 | /** @hash: hashtable representing the local ARP cache */ | |
2f1dfbe1 | 1171 | struct batadv_hashtable *hash; |
8b84cc4f SE |
1172 | |
1173 | /** @work: work queue callback item for cache purging */ | |
2f1dfbe1 | 1174 | struct delayed_work work; |
785ea114 | 1175 | }; |
17224474 | 1176 | #endif |
785ea114 | 1177 | |
c5caf4ef | 1178 | #ifdef CONFIG_BATMAN_ADV_MCAST |
687937ab LL |
1179 | /** |
1180 | * struct batadv_mcast_querier_state - IGMP/MLD querier state when bridged | |
687937ab LL |
1181 | */ |
1182 | struct batadv_mcast_querier_state { | |
8b84cc4f | 1183 | /** @exists: whether a querier exists in the mesh */ |
6486379d | 1184 | unsigned char exists:1; |
8b84cc4f SE |
1185 | |
1186 | /** | |
1187 | * @shadowing: if a querier exists, whether it is potentially shadowing | |
1188 | * multicast listeners (i.e. querier is behind our own bridge segment) | |
1189 | */ | |
6486379d | 1190 | unsigned char shadowing:1; |
687937ab LL |
1191 | }; |
1192 | ||
6bc45440 LL |
1193 | /** |
1194 | * struct batadv_mcast_mla_flags - flags for the querier, bridge and tvlv state | |
1195 | */ | |
1196 | struct batadv_mcast_mla_flags { | |
1197 | /** @querier_ipv4: the current state of an IGMP querier in the mesh */ | |
1198 | struct batadv_mcast_querier_state querier_ipv4; | |
1199 | ||
1200 | /** @querier_ipv6: the current state of an MLD querier in the mesh */ | |
1201 | struct batadv_mcast_querier_state querier_ipv6; | |
1202 | ||
1203 | /** @enabled: whether the multicast tvlv is currently enabled */ | |
1204 | unsigned char enabled:1; | |
1205 | ||
1206 | /** @bridged: whether the soft interface has a bridge on top */ | |
1207 | unsigned char bridged:1; | |
1208 | ||
1209 | /** @tvlv_flags: the flags we have last sent in our mcast tvlv */ | |
1210 | u8 tvlv_flags; | |
1211 | }; | |
1212 | ||
c5caf4ef LL |
1213 | /** |
1214 | * struct batadv_priv_mcast - per mesh interface mcast data | |
c5caf4ef LL |
1215 | */ |
1216 | struct batadv_priv_mcast { | |
8b84cc4f SE |
1217 | /** |
1218 | * @mla_list: list of multicast addresses we are currently announcing | |
1219 | * via TT | |
1220 | */ | |
cbebd363 | 1221 | struct hlist_head mla_list; /* see __batadv_mcast_mla_update() */ |
8b84cc4f SE |
1222 | |
1223 | /** | |
1224 | * @want_all_unsnoopables_list: a list of orig_nodes wanting all | |
1225 | * unsnoopable multicast traffic | |
1226 | */ | |
ab49886e | 1227 | struct hlist_head want_all_unsnoopables_list; |
8b84cc4f SE |
1228 | |
1229 | /** | |
1230 | * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast | |
1231 | * traffic | |
1232 | */ | |
4c8755d6 | 1233 | struct hlist_head want_all_ipv4_list; |
8b84cc4f SE |
1234 | |
1235 | /** | |
1236 | * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast | |
1237 | * traffic | |
1238 | */ | |
4c8755d6 | 1239 | struct hlist_head want_all_ipv6_list; |
8b84cc4f | 1240 | |
61caf3d1 LL |
1241 | /** |
1242 | * @want_all_rtr4_list: a list of orig_nodes wanting all routable IPv4 | |
1243 | * multicast traffic | |
1244 | */ | |
1245 | struct hlist_head want_all_rtr4_list; | |
1246 | ||
1247 | /** | |
1248 | * @want_all_rtr6_list: a list of orig_nodes wanting all routable IPv6 | |
1249 | * multicast traffic | |
1250 | */ | |
1251 | struct hlist_head want_all_rtr6_list; | |
1252 | ||
6bc45440 LL |
1253 | /** |
1254 | * @mla_flags: flags for the querier, bridge and tvlv state | |
1255 | */ | |
1256 | struct batadv_mcast_mla_flags mla_flags; | |
8b84cc4f | 1257 | |
a3c7cd0c LL |
1258 | /** |
1259 | * @mla_lock: a lock protecting mla_list and mla_flags | |
1260 | */ | |
1261 | spinlock_t mla_lock; | |
1262 | ||
8b84cc4f SE |
1263 | /** |
1264 | * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP | |
1265 | * traffic | |
1266 | */ | |
ab49886e | 1267 | atomic_t num_want_all_unsnoopables; |
8b84cc4f SE |
1268 | |
1269 | /** @num_want_all_ipv4: counter for items in want_all_ipv4_list */ | |
4c8755d6 | 1270 | atomic_t num_want_all_ipv4; |
8b84cc4f SE |
1271 | |
1272 | /** @num_want_all_ipv6: counter for items in want_all_ipv6_list */ | |
4c8755d6 | 1273 | atomic_t num_want_all_ipv6; |
8b84cc4f | 1274 | |
61caf3d1 LL |
1275 | /** @num_want_all_rtr4: counter for items in want_all_rtr4_list */ |
1276 | atomic_t num_want_all_rtr4; | |
1277 | ||
1278 | /** @num_want_all_rtr6: counter for items in want_all_rtr6_list */ | |
1279 | atomic_t num_want_all_rtr6; | |
1280 | ||
8b84cc4f SE |
1281 | /** |
1282 | * @want_lists_lock: lock for protecting modifications to mcasts | |
1283 | * want_all_{unsnoopables,ipv4,ipv6}_list (traversals are rcu-locked) | |
1284 | */ | |
ab49886e | 1285 | spinlock_t want_lists_lock; |
8b84cc4f SE |
1286 | |
1287 | /** @work: work queue callback item for multicast TT and TVLV updates */ | |
cbebd363 | 1288 | struct delayed_work work; |
c5caf4ef LL |
1289 | }; |
1290 | #endif | |
1291 | ||
d353d8d4 MH |
1292 | /** |
1293 | * struct batadv_priv_nc - per mesh interface network coding private data | |
d353d8d4 MH |
1294 | */ |
1295 | struct batadv_priv_nc { | |
8b84cc4f | 1296 | /** @work: work queue callback item for cleanup */ |
d353d8d4 | 1297 | struct delayed_work work; |
8b84cc4f | 1298 | |
8b84cc4f SE |
1299 | /** |
1300 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
1301 | */ | |
d56b1705 | 1302 | u8 min_tq; |
8b84cc4f SE |
1303 | |
1304 | /** | |
1305 | * @max_fwd_delay: maximum packet forward delay to allow coding of | |
1306 | * packets | |
1307 | */ | |
95332477 | 1308 | u32 max_fwd_delay; |
8b84cc4f SE |
1309 | |
1310 | /** | |
1311 | * @max_buffer_time: buffer time for sniffed packets used to decoding | |
1312 | */ | |
612d2b4f | 1313 | u32 max_buffer_time; |
8b84cc4f SE |
1314 | |
1315 | /** | |
1316 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush | |
1317 | */ | |
95332477 | 1318 | unsigned long timestamp_fwd_flush; |
8b84cc4f SE |
1319 | |
1320 | /** | |
1321 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue | |
1322 | * purge | |
1323 | */ | |
612d2b4f | 1324 | unsigned long timestamp_sniffed_purge; |
8b84cc4f SE |
1325 | |
1326 | /** | |
1327 | * @coding_hash: Hash table used to buffer skbs while waiting for | |
1328 | * another incoming skb to code it with. Skbs are added to the buffer | |
1329 | * just before being forwarded in routing.c | |
1330 | */ | |
95332477 | 1331 | struct batadv_hashtable *coding_hash; |
8b84cc4f SE |
1332 | |
1333 | /** | |
1334 | * @decoding_hash: Hash table used to buffer skbs that might be needed | |
1335 | * to decode a received coded skb. The buffer is used for 1) skbs | |
1336 | * arriving on the soft-interface; 2) skbs overheard on the | |
1337 | * hard-interface; and 3) skbs forwarded by batman-adv. | |
1338 | */ | |
612d2b4f | 1339 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
1340 | }; |
1341 | ||
33a3bb4a AQ |
1342 | /** |
1343 | * struct batadv_tp_unacked - unacked packet meta-information | |
33a3bb4a AQ |
1344 | * |
1345 | * This struct is supposed to represent a buffer unacked packet. However, since | |
1346 | * the purpose of the TP meter is to count the traffic only, there is no need to | |
1347 | * store the entire sk_buff, the starting offset and the length are enough | |
1348 | */ | |
1349 | struct batadv_tp_unacked { | |
8b84cc4f | 1350 | /** @seqno: seqno of the unacked packet */ |
33a3bb4a | 1351 | u32 seqno; |
8b84cc4f SE |
1352 | |
1353 | /** @len: length of the packet */ | |
33a3bb4a | 1354 | u16 len; |
8b84cc4f | 1355 | |
a07369d7 | 1356 | /** @list: list node for &batadv_tp_vars.unacked_list */ |
33a3bb4a AQ |
1357 | struct list_head list; |
1358 | }; | |
1359 | ||
1360 | /** | |
1361 | * enum batadv_tp_meter_role - Modus in tp meter session | |
33a3bb4a AQ |
1362 | */ |
1363 | enum batadv_tp_meter_role { | |
8b84cc4f | 1364 | /** @BATADV_TP_RECEIVER: Initialized as receiver */ |
33a3bb4a | 1365 | BATADV_TP_RECEIVER, |
8b84cc4f SE |
1366 | |
1367 | /** @BATADV_TP_SENDER: Initialized as sender */ | |
33a3bb4a AQ |
1368 | BATADV_TP_SENDER |
1369 | }; | |
1370 | ||
1371 | /** | |
1372 | * struct batadv_tp_vars - tp meter private variables per session | |
33a3bb4a AQ |
1373 | */ |
1374 | struct batadv_tp_vars { | |
a07369d7 | 1375 | /** @list: list node for &bat_priv.tp_list */ |
33a3bb4a | 1376 | struct hlist_node list; |
8b84cc4f SE |
1377 | |
1378 | /** @timer: timer for ack (receiver) and retry (sender) */ | |
33a3bb4a | 1379 | struct timer_list timer; |
8b84cc4f SE |
1380 | |
1381 | /** @bat_priv: pointer to the mesh object */ | |
33a3bb4a | 1382 | struct batadv_priv *bat_priv; |
8b84cc4f SE |
1383 | |
1384 | /** @start_time: start time in jiffies */ | |
33a3bb4a | 1385 | unsigned long start_time; |
8b84cc4f SE |
1386 | |
1387 | /** @other_end: mac address of remote */ | |
33a3bb4a | 1388 | u8 other_end[ETH_ALEN]; |
8b84cc4f SE |
1389 | |
1390 | /** @role: receiver/sender modi */ | |
33a3bb4a | 1391 | enum batadv_tp_meter_role role; |
8b84cc4f SE |
1392 | |
1393 | /** @sending: sending binary semaphore: 1 if sending, 0 is not */ | |
33a3bb4a | 1394 | atomic_t sending; |
8b84cc4f SE |
1395 | |
1396 | /** @reason: reason for a stopped session */ | |
33a3bb4a | 1397 | enum batadv_tp_meter_reason reason; |
8b84cc4f SE |
1398 | |
1399 | /** @finish_work: work item for the finishing procedure */ | |
33a3bb4a | 1400 | struct delayed_work finish_work; |
8b84cc4f SE |
1401 | |
1402 | /** @test_length: test length in milliseconds */ | |
33a3bb4a | 1403 | u32 test_length; |
8b84cc4f SE |
1404 | |
1405 | /** @session: TP session identifier */ | |
33a3bb4a | 1406 | u8 session[2]; |
8b84cc4f SE |
1407 | |
1408 | /** @icmp_uid: local ICMP "socket" index */ | |
33a3bb4a AQ |
1409 | u8 icmp_uid; |
1410 | ||
1411 | /* sender variables */ | |
8b84cc4f SE |
1412 | |
1413 | /** @dec_cwnd: decimal part of the cwnd used during linear growth */ | |
33a3bb4a | 1414 | u16 dec_cwnd; |
8b84cc4f SE |
1415 | |
1416 | /** @cwnd: current size of the congestion window */ | |
33a3bb4a | 1417 | u32 cwnd; |
8b84cc4f SE |
1418 | |
1419 | /** @cwnd_lock: lock do protect @cwnd & @dec_cwnd */ | |
1420 | spinlock_t cwnd_lock; | |
1421 | ||
1422 | /** | |
1423 | * @ss_threshold: Slow Start threshold. Once cwnd exceeds this value the | |
1424 | * connection switches to the Congestion Avoidance state | |
1425 | */ | |
33a3bb4a | 1426 | u32 ss_threshold; |
8b84cc4f SE |
1427 | |
1428 | /** @last_acked: last acked byte */ | |
33a3bb4a | 1429 | atomic_t last_acked; |
8b84cc4f SE |
1430 | |
1431 | /** @last_sent: last sent byte, not yet acked */ | |
33a3bb4a | 1432 | u32 last_sent; |
8b84cc4f SE |
1433 | |
1434 | /** @tot_sent: amount of data sent/ACKed so far */ | |
33a3bb4a | 1435 | atomic64_t tot_sent; |
8b84cc4f SE |
1436 | |
1437 | /** @dup_acks: duplicate ACKs counter */ | |
33a3bb4a | 1438 | atomic_t dup_acks; |
8b84cc4f SE |
1439 | |
1440 | /** @fast_recovery: true if in Fast Recovery mode */ | |
6486379d | 1441 | unsigned char fast_recovery:1; |
8b84cc4f SE |
1442 | |
1443 | /** @recover: last sent seqno when entering Fast Recovery */ | |
33a3bb4a | 1444 | u32 recover; |
8b84cc4f SE |
1445 | |
1446 | /** @rto: sender timeout */ | |
33a3bb4a | 1447 | u32 rto; |
8b84cc4f SE |
1448 | |
1449 | /** @srtt: smoothed RTT scaled by 2^3 */ | |
33a3bb4a | 1450 | u32 srtt; |
8b84cc4f SE |
1451 | |
1452 | /** @rttvar: RTT variation scaled by 2^2 */ | |
33a3bb4a | 1453 | u32 rttvar; |
8b84cc4f SE |
1454 | |
1455 | /** | |
1456 | * @more_bytes: waiting queue anchor when waiting for more ack/retry | |
1457 | * timeout | |
1458 | */ | |
33a3bb4a | 1459 | wait_queue_head_t more_bytes; |
8b84cc4f SE |
1460 | |
1461 | /** @prerandom_offset: offset inside the prerandom buffer */ | |
33a3bb4a | 1462 | u32 prerandom_offset; |
8b84cc4f SE |
1463 | |
1464 | /** @prerandom_lock: spinlock protecting access to prerandom_offset */ | |
1465 | spinlock_t prerandom_lock; | |
33a3bb4a AQ |
1466 | |
1467 | /* receiver variables */ | |
8b84cc4f SE |
1468 | |
1469 | /** @last_recv: last in-order received packet */ | |
33a3bb4a | 1470 | u32 last_recv; |
8b84cc4f SE |
1471 | |
1472 | /** @unacked_list: list of unacked packets (meta-info only) */ | |
33a3bb4a | 1473 | struct list_head unacked_list; |
8b84cc4f SE |
1474 | |
1475 | /** @unacked_lock: protect unacked_list */ | |
1476 | spinlock_t unacked_lock; | |
1477 | ||
6f5b92a7 | 1478 | /** @last_recv_time: time (jiffies) a msg was received */ |
33a3bb4a | 1479 | unsigned long last_recv_time; |
8b84cc4f SE |
1480 | |
1481 | /** @refcount: number of context where the object is used */ | |
33a3bb4a | 1482 | struct kref refcount; |
8b84cc4f SE |
1483 | |
1484 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
33a3bb4a AQ |
1485 | struct rcu_head rcu; |
1486 | }; | |
1487 | ||
5d2c05b2 AQ |
1488 | /** |
1489 | * struct batadv_softif_vlan - per VLAN attributes set | |
5d2c05b2 AQ |
1490 | */ |
1491 | struct batadv_softif_vlan { | |
8b84cc4f | 1492 | /** @bat_priv: pointer to the mesh object */ |
35df3b29 | 1493 | struct batadv_priv *bat_priv; |
8b84cc4f SE |
1494 | |
1495 | /** @vid: VLAN identifier */ | |
5d2c05b2 | 1496 | unsigned short vid; |
8b84cc4f | 1497 | |
8b84cc4f | 1498 | /** @ap_isolation: AP isolation state */ |
b8cbd81d | 1499 | atomic_t ap_isolation; /* boolean */ |
8b84cc4f SE |
1500 | |
1501 | /** @tt: TT private attributes (VLAN specific) */ | |
7ea7b4a1 | 1502 | struct batadv_vlan_tt tt; |
8b84cc4f | 1503 | |
a07369d7 | 1504 | /** @list: list node for &bat_priv.softif_vlan_list */ |
5d2c05b2 | 1505 | struct hlist_node list; |
8b84cc4f SE |
1506 | |
1507 | /** | |
1508 | * @refcount: number of context where this object is currently in use | |
1509 | */ | |
6be4d30c | 1510 | struct kref refcount; |
8b84cc4f SE |
1511 | |
1512 | /** @rcu: struct used for freeing in a RCU-safe manner */ | |
5d2c05b2 AQ |
1513 | struct rcu_head rcu; |
1514 | }; | |
1515 | ||
0da00359 AQ |
1516 | /** |
1517 | * struct batadv_priv_bat_v - B.A.T.M.A.N. V per soft-interface private data | |
0da00359 AQ |
1518 | */ |
1519 | struct batadv_priv_bat_v { | |
8b84cc4f | 1520 | /** @ogm_buff: buffer holding the OGM packet */ |
0da00359 | 1521 | unsigned char *ogm_buff; |
8b84cc4f SE |
1522 | |
1523 | /** @ogm_buff_len: length of the OGM packet buffer */ | |
0da00359 | 1524 | int ogm_buff_len; |
8b84cc4f SE |
1525 | |
1526 | /** @ogm_seqno: OGM sequence number - used to identify each OGM */ | |
0da00359 | 1527 | atomic_t ogm_seqno; |
8b84cc4f | 1528 | |
a8d23cbb SE |
1529 | /** @ogm_buff_mutex: lock protecting ogm_buff and ogm_buff_len */ |
1530 | struct mutex ogm_buff_mutex; | |
1531 | ||
8b84cc4f | 1532 | /** @ogm_wq: workqueue used to schedule OGM transmissions */ |
0da00359 AQ |
1533 | struct delayed_work ogm_wq; |
1534 | }; | |
1535 | ||
88a32c9a ML |
1536 | /** |
1537 | * struct batadv_priv - per mesh interface data | |
88a32c9a | 1538 | */ |
56303d34 | 1539 | struct batadv_priv { |
8b84cc4f SE |
1540 | /** |
1541 | * @mesh_state: current status of the mesh | |
1542 | * (inactive/active/deactivating) | |
1543 | */ | |
c6c8fea2 | 1544 | atomic_t mesh_state; |
8b84cc4f SE |
1545 | |
1546 | /** @soft_iface: net device which holds this struct as private data */ | |
5bc44dc8 | 1547 | struct net_device *soft_iface; |
8b84cc4f SE |
1548 | |
1549 | /** | |
1550 | * @bat_counters: mesh internal traffic statistic counters (see | |
1551 | * batadv_counters) | |
1552 | */ | |
6b5e971a | 1553 | u64 __percpu *bat_counters; /* Per cpu counters */ |
8b84cc4f SE |
1554 | |
1555 | /** | |
1556 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
1557 | */ | |
88a32c9a | 1558 | atomic_t aggregated_ogms; |
8b84cc4f SE |
1559 | |
1560 | /** @bonding: bool indicating whether traffic bonding is enabled */ | |
88a32c9a | 1561 | atomic_t bonding; |
8b84cc4f SE |
1562 | |
1563 | /** | |
1564 | * @fragmentation: bool indicating whether traffic fragmentation is | |
1565 | * enabled | |
1566 | */ | |
88a32c9a | 1567 | atomic_t fragmentation; |
8b84cc4f SE |
1568 | |
1569 | /** | |
1570 | * @packet_size_max: max packet size that can be transmitted via | |
1571 | * multiple fragmented skbs or a single frame if fragmentation is | |
1572 | * disabled | |
1573 | */ | |
a19d3d85 | 1574 | atomic_t packet_size_max; |
8b84cc4f SE |
1575 | |
1576 | /** | |
1577 | * @frag_seqno: incremental counter to identify chains of egress | |
1578 | * fragments | |
1579 | */ | |
ee75ed88 | 1580 | atomic_t frag_seqno; |
8b84cc4f | 1581 | |
fa706554 | 1582 | #ifdef CONFIG_BATMAN_ADV_BLA |
8b84cc4f SE |
1583 | /** |
1584 | * @bridge_loop_avoidance: bool indicating whether bridge loop | |
1585 | * avoidance is enabled | |
1586 | */ | |
88a32c9a | 1587 | atomic_t bridge_loop_avoidance; |
fa706554 | 1588 | #endif |
8b84cc4f | 1589 | |
33af49ad | 1590 | #ifdef CONFIG_BATMAN_ADV_DAT |
8b84cc4f SE |
1591 | /** |
1592 | * @distributed_arp_table: bool indicating whether distributed ARP table | |
1593 | * is enabled | |
1594 | */ | |
88a32c9a | 1595 | atomic_t distributed_arp_table; |
1d8ab8d3 | 1596 | #endif |
8b84cc4f | 1597 | |
1d8ab8d3 | 1598 | #ifdef CONFIG_BATMAN_ADV_MCAST |
8b84cc4f SE |
1599 | /** |
1600 | * @multicast_mode: Enable or disable multicast optimizations on this | |
1601 | * node's sender/originating side | |
1602 | */ | |
1d8ab8d3 | 1603 | atomic_t multicast_mode; |
32e72744 LL |
1604 | |
1605 | /** | |
1606 | * @multicast_fanout: Maximum number of packet copies to generate for a | |
1607 | * multicast-to-unicast conversion | |
1608 | */ | |
1609 | atomic_t multicast_fanout; | |
33af49ad | 1610 | #endif |
8b84cc4f SE |
1611 | |
1612 | /** @orig_interval: OGM broadcast interval in milliseconds */ | |
88a32c9a | 1613 | atomic_t orig_interval; |
8b84cc4f SE |
1614 | |
1615 | /** | |
1616 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on | |
1617 | * every hop | |
1618 | */ | |
88a32c9a | 1619 | atomic_t hop_penalty; |
8b84cc4f | 1620 | |
0c430d0d | 1621 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
8b84cc4f | 1622 | /** @log_level: configured log level (see batadv_dbg_level) */ |
88a32c9a | 1623 | atomic_t log_level; |
0c430d0d | 1624 | #endif |
8b84cc4f SE |
1625 | |
1626 | /** | |
1627 | * @isolation_mark: the skb->mark value used to match packets for AP | |
1628 | * isolation | |
1629 | */ | |
6b5e971a | 1630 | u32 isolation_mark; |
8b84cc4f SE |
1631 | |
1632 | /** | |
1633 | * @isolation_mark_mask: bitmask identifying the bits in skb->mark to be | |
1634 | * used for the isolation mark | |
1635 | */ | |
6b5e971a | 1636 | u32 isolation_mark_mask; |
8b84cc4f SE |
1637 | |
1638 | /** @bcast_seqno: last sent broadcast packet sequence number */ | |
c6c8fea2 | 1639 | atomic_t bcast_seqno; |
8b84cc4f SE |
1640 | |
1641 | /** | |
1642 | * @bcast_queue_left: number of remaining buffered broadcast packet | |
1643 | * slots | |
1644 | */ | |
c6c8fea2 | 1645 | atomic_t bcast_queue_left; |
8b84cc4f SE |
1646 | |
1647 | /** @batman_queue_left: number of remaining OGM packet slots */ | |
c6c8fea2 | 1648 | atomic_t batman_queue_left; |
8b84cc4f | 1649 | |
8b84cc4f | 1650 | /** @forw_bat_list: list of aggregated OGMs that will be forwarded */ |
c6c8fea2 | 1651 | struct hlist_head forw_bat_list; |
8b84cc4f SE |
1652 | |
1653 | /** | |
1654 | * @forw_bcast_list: list of broadcast packets that will be | |
1655 | * rebroadcasted | |
1656 | */ | |
c6c8fea2 | 1657 | struct hlist_head forw_bcast_list; |
8b84cc4f SE |
1658 | |
1659 | /** @tp_list: list of tp sessions */ | |
33a3bb4a | 1660 | struct hlist_head tp_list; |
8b84cc4f | 1661 | |
549750ba | 1662 | /** @orig_hash: hash table containing mesh participants (orig nodes) */ |
5bf74e9c | 1663 | struct batadv_hashtable *orig_hash; |
8b84cc4f | 1664 | |
549750ba | 1665 | /** @forw_bat_list_lock: lock protecting forw_bat_list */ |
8b84cc4f SE |
1666 | spinlock_t forw_bat_list_lock; |
1667 | ||
549750ba | 1668 | /** @forw_bcast_list_lock: lock protecting forw_bcast_list */ |
8b84cc4f SE |
1669 | spinlock_t forw_bcast_list_lock; |
1670 | ||
549750ba | 1671 | /** @tp_list_lock: spinlock protecting @tp_list */ |
8b84cc4f SE |
1672 | spinlock_t tp_list_lock; |
1673 | ||
549750ba | 1674 | /** @tp_num: number of currently active tp sessions */ |
33a3bb4a | 1675 | atomic_t tp_num; |
8b84cc4f SE |
1676 | |
1677 | /** @orig_work: work queue callback item for orig node purging */ | |
c6c8fea2 | 1678 | struct delayed_work orig_work; |
8b84cc4f SE |
1679 | |
1680 | /** | |
1681 | * @primary_if: one of the hard-interfaces assigned to this mesh | |
1682 | * interface becomes the primary interface | |
1683 | */ | |
56303d34 | 1684 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
8b84cc4f SE |
1685 | |
1686 | /** @algo_ops: routing algorithm used by this mesh interface */ | |
29824a55 | 1687 | struct batadv_algo_ops *algo_ops; |
8b84cc4f SE |
1688 | |
1689 | /** | |
1690 | * @softif_vlan_list: a list of softif_vlan structs, one per VLAN | |
1691 | * created on top of the mesh interface represented by this object | |
1692 | */ | |
5d2c05b2 | 1693 | struct hlist_head softif_vlan_list; |
8b84cc4f SE |
1694 | |
1695 | /** @softif_vlan_list_lock: lock protecting softif_vlan_list */ | |
1696 | spinlock_t softif_vlan_list_lock; | |
1697 | ||
807736f6 | 1698 | #ifdef CONFIG_BATMAN_ADV_BLA |
bccb48c8 | 1699 | /** @bla: bridge loop avoidance data */ |
807736f6 | 1700 | struct batadv_priv_bla bla; |
0abf5d81 | 1701 | #endif |
8b84cc4f | 1702 | |
0abf5d81 | 1703 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
8b84cc4f | 1704 | /** @debug_log: holding debug logging relevant data */ |
0abf5d81 | 1705 | struct batadv_priv_debug_log *debug_log; |
807736f6 | 1706 | #endif |
8b84cc4f SE |
1707 | |
1708 | /** @gw: gateway data */ | |
807736f6 | 1709 | struct batadv_priv_gw gw; |
8b84cc4f SE |
1710 | |
1711 | /** @tt: translation table data */ | |
807736f6 | 1712 | struct batadv_priv_tt tt; |
8b84cc4f SE |
1713 | |
1714 | /** @tvlv: type-version-length-value data */ | |
ef261577 | 1715 | struct batadv_priv_tvlv tvlv; |
8b84cc4f | 1716 | |
17224474 | 1717 | #ifdef CONFIG_BATMAN_ADV_DAT |
8b84cc4f | 1718 | /** @dat: distributed arp table data */ |
785ea114 | 1719 | struct batadv_priv_dat dat; |
17224474 | 1720 | #endif |
8b84cc4f | 1721 | |
c5caf4ef | 1722 | #ifdef CONFIG_BATMAN_ADV_MCAST |
8b84cc4f | 1723 | /** @mcast: multicast data */ |
c5caf4ef LL |
1724 | struct batadv_priv_mcast mcast; |
1725 | #endif | |
8b84cc4f | 1726 | |
d353d8d4 | 1727 | #ifdef CONFIG_BATMAN_ADV_NC |
8b84cc4f SE |
1728 | /** |
1729 | * @network_coding: bool indicating whether network coding is enabled | |
1730 | */ | |
d353d8d4 | 1731 | atomic_t network_coding; |
8b84cc4f SE |
1732 | |
1733 | /** @nc: network coding data */ | |
d353d8d4 MH |
1734 | struct batadv_priv_nc nc; |
1735 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
8b84cc4f | 1736 | |
0da00359 | 1737 | #ifdef CONFIG_BATMAN_ADV_BATMAN_V |
8b84cc4f | 1738 | /** @bat_v: B.A.T.M.A.N. V per soft-interface private data */ |
0da00359 AQ |
1739 | struct batadv_priv_bat_v bat_v; |
1740 | #endif | |
c6c8fea2 SE |
1741 | }; |
1742 | ||
88a32c9a ML |
1743 | /** |
1744 | * struct batadv_socket_client - layer2 icmp socket client data | |
88a32c9a | 1745 | */ |
56303d34 | 1746 | struct batadv_socket_client { |
8b84cc4f SE |
1747 | /** |
1748 | * @queue_list: packet queue for packets destined for this socket client | |
1749 | */ | |
c6c8fea2 | 1750 | struct list_head queue_list; |
8b84cc4f SE |
1751 | |
1752 | /** @queue_len: number of packets in the packet queue (queue_list) */ | |
c6c8fea2 | 1753 | unsigned int queue_len; |
8b84cc4f SE |
1754 | |
1755 | /** @index: socket client's index in the batadv_socket_client_hash */ | |
c6c8fea2 | 1756 | unsigned char index; |
8b84cc4f SE |
1757 | |
1758 | /** @lock: lock protecting queue_list, queue_len & index */ | |
1759 | spinlock_t lock; | |
1760 | ||
1761 | /** @queue_wait: socket client's wait queue */ | |
c6c8fea2 | 1762 | wait_queue_head_t queue_wait; |
8b84cc4f SE |
1763 | |
1764 | /** @bat_priv: pointer to soft_iface this client belongs to */ | |
56303d34 | 1765 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
1766 | }; |
1767 | ||
88a32c9a ML |
1768 | /** |
1769 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
88a32c9a | 1770 | */ |
56303d34 | 1771 | struct batadv_socket_packet { |
a07369d7 | 1772 | /** @list: list node for &batadv_socket_client.queue_list */ |
c6c8fea2 | 1773 | struct list_head list; |
8b84cc4f SE |
1774 | |
1775 | /** @icmp_len: size of the layer2 icmp packet */ | |
c6c8fea2 | 1776 | size_t icmp_len; |
8b84cc4f SE |
1777 | |
1778 | /** @icmp_packet: layer2 icmp packet */ | |
6b5e971a | 1779 | u8 icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; |
c6c8fea2 SE |
1780 | }; |
1781 | ||
426fc6c8 SE |
1782 | #ifdef CONFIG_BATMAN_ADV_BLA |
1783 | ||
88a32c9a ML |
1784 | /** |
1785 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
88a32c9a | 1786 | */ |
bae98774 | 1787 | struct batadv_bla_backbone_gw { |
8b84cc4f SE |
1788 | /** |
1789 | * @orig: originator address of backbone node (mac address of primary | |
1790 | * iface) | |
1791 | */ | |
6b5e971a | 1792 | u8 orig[ETH_ALEN]; |
8b84cc4f SE |
1793 | |
1794 | /** @vid: vlan id this gateway was detected on */ | |
eb2deb6b | 1795 | unsigned short vid; |
8b84cc4f | 1796 | |
a07369d7 | 1797 | /** @hash_entry: hlist node for &batadv_priv_bla.backbone_hash */ |
2006fea8 | 1798 | struct hlist_node hash_entry; |
8b84cc4f SE |
1799 | |
1800 | /** @bat_priv: pointer to soft_iface this backbone gateway belongs to */ | |
2006fea8 | 1801 | struct batadv_priv *bat_priv; |
8b84cc4f SE |
1802 | |
1803 | /** @lasttime: last time we heard of this backbone gw */ | |
88a32c9a | 1804 | unsigned long lasttime; |
8b84cc4f SE |
1805 | |
1806 | /** | |
1807 | * @wait_periods: grace time for bridge forward delays and bla group | |
1808 | * forming at bootup phase - no bcast traffic is formwared until it has | |
1809 | * elapsed | |
1810 | */ | |
2006fea8 | 1811 | atomic_t wait_periods; |
8b84cc4f SE |
1812 | |
1813 | /** | |
1814 | * @request_sent: if this bool is set to true we are out of sync with | |
1815 | * this backbone gateway - no bcast traffic is formwared until the | |
1816 | * situation was resolved | |
1817 | */ | |
2006fea8 | 1818 | atomic_t request_sent; |
8b84cc4f SE |
1819 | |
1820 | /** @crc: crc16 checksum over all claims */ | |
6b5e971a | 1821 | u16 crc; |
8b84cc4f SE |
1822 | |
1823 | /** @crc_lock: lock protecting crc */ | |
1824 | spinlock_t crc_lock; | |
1825 | ||
1826 | /** @report_work: work struct for reporting detected loops */ | |
cd9c7bfb | 1827 | struct work_struct report_work; |
8b84cc4f SE |
1828 | |
1829 | /** @refcount: number of contexts the object is used */ | |
06e56ded | 1830 | struct kref refcount; |
8b84cc4f SE |
1831 | |
1832 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
2006fea8 | 1833 | struct rcu_head rcu; |
2006fea8 ML |
1834 | }; |
1835 | ||
88a32c9a ML |
1836 | /** |
1837 | * struct batadv_bla_claim - claimed non-mesh client structure | |
88a32c9a | 1838 | */ |
712bbfe4 | 1839 | struct batadv_bla_claim { |
8b84cc4f | 1840 | /** @addr: mac address of claimed non-mesh client */ |
6b5e971a | 1841 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
1842 | |
1843 | /** @vid: vlan id this client was detected on */ | |
eb2deb6b | 1844 | unsigned short vid; |
8b84cc4f SE |
1845 | |
1846 | /** @backbone_gw: pointer to backbone gw claiming this client */ | |
bae98774 | 1847 | struct batadv_bla_backbone_gw *backbone_gw; |
8b84cc4f SE |
1848 | |
1849 | /** @backbone_lock: lock protecting backbone_gw pointer */ | |
1850 | spinlock_t backbone_lock; | |
1851 | ||
1852 | /** @lasttime: last time we heard of claim (locals only) */ | |
88a32c9a | 1853 | unsigned long lasttime; |
8b84cc4f | 1854 | |
a07369d7 | 1855 | /** @hash_entry: hlist node for &batadv_priv_bla.claim_hash */ |
88a32c9a | 1856 | struct hlist_node hash_entry; |
8b84cc4f SE |
1857 | |
1858 | /** @refcount: number of contexts the object is used */ | |
2006fea8 | 1859 | struct rcu_head rcu; |
8b84cc4f SE |
1860 | |
1861 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
71b7e3d3 | 1862 | struct kref refcount; |
2006fea8 ML |
1863 | }; |
1864 | #endif | |
1865 | ||
88a32c9a ML |
1866 | /** |
1867 | * struct batadv_tt_common_entry - tt local & tt global common data | |
88a32c9a | 1868 | */ |
56303d34 | 1869 | struct batadv_tt_common_entry { |
8b84cc4f | 1870 | /** @addr: mac address of non-mesh client */ |
6b5e971a | 1871 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
1872 | |
1873 | /** @vid: VLAN identifier */ | |
c018ad3d | 1874 | unsigned short vid; |
8b84cc4f SE |
1875 | |
1876 | /** | |
a07369d7 SE |
1877 | * @hash_entry: hlist node for &batadv_priv_tt.local_hash or for |
1878 | * &batadv_priv_tt.global_hash | |
8b84cc4f | 1879 | */ |
93840ac4 | 1880 | struct hlist_node hash_entry; |
8b84cc4f SE |
1881 | |
1882 | /** @flags: various state handling flags (see batadv_tt_client_flags) */ | |
6b5e971a | 1883 | u16 flags; |
8b84cc4f SE |
1884 | |
1885 | /** @added_at: timestamp used for purging stale tt common entries */ | |
30cfd02b | 1886 | unsigned long added_at; |
8b84cc4f SE |
1887 | |
1888 | /** @refcount: number of contexts the object is used */ | |
92dcdf09 | 1889 | struct kref refcount; |
8b84cc4f SE |
1890 | |
1891 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
7683fdc1 | 1892 | struct rcu_head rcu; |
c6c8fea2 SE |
1893 | }; |
1894 | ||
88a32c9a ML |
1895 | /** |
1896 | * struct batadv_tt_local_entry - translation table local entry data | |
88a32c9a | 1897 | */ |
56303d34 | 1898 | struct batadv_tt_local_entry { |
8b84cc4f | 1899 | /** @common: general translation table data */ |
56303d34 | 1900 | struct batadv_tt_common_entry common; |
8b84cc4f SE |
1901 | |
1902 | /** @last_seen: timestamp used for purging stale tt local entries */ | |
48100bac | 1903 | unsigned long last_seen; |
8b84cc4f SE |
1904 | |
1905 | /** @vlan: soft-interface vlan of the entry */ | |
a33d970d | 1906 | struct batadv_softif_vlan *vlan; |
48100bac AQ |
1907 | }; |
1908 | ||
88a32c9a ML |
1909 | /** |
1910 | * struct batadv_tt_global_entry - translation table global entry data | |
88a32c9a | 1911 | */ |
56303d34 | 1912 | struct batadv_tt_global_entry { |
8b84cc4f | 1913 | /** @common: general translation table data */ |
56303d34 | 1914 | struct batadv_tt_common_entry common; |
8b84cc4f SE |
1915 | |
1916 | /** @orig_list: list of orig nodes announcing this non-mesh client */ | |
db08e6e5 | 1917 | struct hlist_head orig_list; |
8b84cc4f SE |
1918 | |
1919 | /** @orig_list_count: number of items in the orig_list */ | |
1d8ab8d3 | 1920 | atomic_t orig_list_count; |
8b84cc4f SE |
1921 | |
1922 | /** @list_lock: lock protecting orig_list */ | |
1923 | spinlock_t list_lock; | |
1924 | ||
1925 | /** @roam_at: time at which TT_GLOBAL_ROAM was set */ | |
88a32c9a | 1926 | unsigned long roam_at; |
db08e6e5 SW |
1927 | }; |
1928 | ||
88a32c9a ML |
1929 | /** |
1930 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
88a32c9a | 1931 | */ |
56303d34 | 1932 | struct batadv_tt_orig_list_entry { |
8b84cc4f | 1933 | /** @orig_node: pointer to orig node announcing this non-mesh client */ |
56303d34 | 1934 | struct batadv_orig_node *orig_node; |
8b84cc4f SE |
1935 | |
1936 | /** | |
1937 | * @ttvn: translation table version number which added the non-mesh | |
1938 | * client | |
1939 | */ | |
6b5e971a | 1940 | u8 ttvn; |
8b84cc4f SE |
1941 | |
1942 | /** @flags: per orig entry TT sync flags */ | |
54e22f26 | 1943 | u8 flags; |
8b84cc4f | 1944 | |
a07369d7 | 1945 | /** @list: list node for &batadv_tt_global_entry.orig_list */ |
88a32c9a | 1946 | struct hlist_node list; |
8b84cc4f SE |
1947 | |
1948 | /** @refcount: number of contexts the object is used */ | |
6e8ef69d | 1949 | struct kref refcount; |
8b84cc4f SE |
1950 | |
1951 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
db08e6e5 | 1952 | struct rcu_head rcu; |
c6c8fea2 SE |
1953 | }; |
1954 | ||
88a32c9a | 1955 | /** |
3f68785e | 1956 | * struct batadv_tt_change_node - structure for tt changes occurred |
88a32c9a | 1957 | */ |
56303d34 | 1958 | struct batadv_tt_change_node { |
a07369d7 | 1959 | /** @list: list node for &batadv_priv_tt.changes_list */ |
a73105b8 | 1960 | struct list_head list; |
8b84cc4f SE |
1961 | |
1962 | /** @change: holds the actual translation table diff data */ | |
e1bf0c14 | 1963 | struct batadv_tvlv_tt_change change; |
a73105b8 AQ |
1964 | }; |
1965 | ||
88a32c9a ML |
1966 | /** |
1967 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
88a32c9a | 1968 | */ |
56303d34 | 1969 | struct batadv_tt_req_node { |
8b84cc4f | 1970 | /** |
6f5b92a7 | 1971 | * @addr: mac address of the originator this request was sent to |
8b84cc4f | 1972 | */ |
6b5e971a | 1973 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
1974 | |
1975 | /** @issued_at: timestamp used for purging stale tt requests */ | |
a73105b8 | 1976 | unsigned long issued_at; |
8b84cc4f SE |
1977 | |
1978 | /** @refcount: number of contexts the object is used by */ | |
9c4604a2 | 1979 | struct kref refcount; |
8b84cc4f | 1980 | |
a07369d7 | 1981 | /** @list: list node for &batadv_priv_tt.req_list */ |
7c26a53b | 1982 | struct hlist_node list; |
a73105b8 AQ |
1983 | }; |
1984 | ||
88a32c9a ML |
1985 | /** |
1986 | * struct batadv_tt_roam_node - roaming client data | |
88a32c9a | 1987 | */ |
56303d34 | 1988 | struct batadv_tt_roam_node { |
8b84cc4f | 1989 | /** @addr: mac address of the client in the roaming phase */ |
6b5e971a | 1990 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
1991 | |
1992 | /** | |
1993 | * @counter: number of allowed roaming events per client within a single | |
1994 | * OGM interval (changes are committed with each OGM) | |
1995 | */ | |
cc47f66e | 1996 | atomic_t counter; |
8b84cc4f SE |
1997 | |
1998 | /** | |
1999 | * @first_time: timestamp used for purging stale roaming node entries | |
2000 | */ | |
cc47f66e | 2001 | unsigned long first_time; |
8b84cc4f | 2002 | |
a07369d7 | 2003 | /** @list: list node for &batadv_priv_tt.roam_list */ |
cc47f66e AQ |
2004 | struct list_head list; |
2005 | }; | |
2006 | ||
d56b1705 MH |
2007 | /** |
2008 | * struct batadv_nc_node - network coding node | |
d56b1705 MH |
2009 | */ |
2010 | struct batadv_nc_node { | |
8b84cc4f | 2011 | /** @list: next and prev pointer for the list handling */ |
d56b1705 | 2012 | struct list_head list; |
8b84cc4f SE |
2013 | |
2014 | /** @addr: the node's mac address */ | |
6b5e971a | 2015 | u8 addr[ETH_ALEN]; |
8b84cc4f SE |
2016 | |
2017 | /** @refcount: number of contexts the object is used by */ | |
daf99b48 | 2018 | struct kref refcount; |
8b84cc4f SE |
2019 | |
2020 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
d56b1705 | 2021 | struct rcu_head rcu; |
8b84cc4f SE |
2022 | |
2023 | /** @orig_node: pointer to corresponding orig node struct */ | |
d56b1705 | 2024 | struct batadv_orig_node *orig_node; |
8b84cc4f SE |
2025 | |
2026 | /** @last_seen: timestamp of last ogm received from this node */ | |
d56b1705 MH |
2027 | unsigned long last_seen; |
2028 | }; | |
2029 | ||
95332477 MH |
2030 | /** |
2031 | * struct batadv_nc_path - network coding path | |
95332477 MH |
2032 | */ |
2033 | struct batadv_nc_path { | |
8b84cc4f | 2034 | /** @hash_entry: next and prev pointer for the list handling */ |
95332477 | 2035 | struct hlist_node hash_entry; |
8b84cc4f SE |
2036 | |
2037 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
95332477 | 2038 | struct rcu_head rcu; |
8b84cc4f SE |
2039 | |
2040 | /** @refcount: number of contexts the object is used by */ | |
727e0cd5 | 2041 | struct kref refcount; |
8b84cc4f SE |
2042 | |
2043 | /** @packet_list: list of buffered packets for this path */ | |
95332477 | 2044 | struct list_head packet_list; |
8b84cc4f SE |
2045 | |
2046 | /** @packet_list_lock: access lock for packet list */ | |
2047 | spinlock_t packet_list_lock; | |
2048 | ||
2049 | /** @next_hop: next hop (destination) of path */ | |
6b5e971a | 2050 | u8 next_hop[ETH_ALEN]; |
8b84cc4f SE |
2051 | |
2052 | /** @prev_hop: previous hop (source) of path */ | |
6b5e971a | 2053 | u8 prev_hop[ETH_ALEN]; |
8b84cc4f SE |
2054 | |
2055 | /** @last_valid: timestamp for last validation of path */ | |
95332477 MH |
2056 | unsigned long last_valid; |
2057 | }; | |
2058 | ||
2059 | /** | |
2060 | * struct batadv_nc_packet - network coding packet used when coding and | |
2061 | * decoding packets | |
95332477 MH |
2062 | */ |
2063 | struct batadv_nc_packet { | |
8b84cc4f | 2064 | /** @list: next and prev pointer for the list handling */ |
95332477 | 2065 | struct list_head list; |
8b84cc4f SE |
2066 | |
2067 | /** @packet_id: crc32 checksum of skb data */ | |
95332477 | 2068 | __be32 packet_id; |
8b84cc4f SE |
2069 | |
2070 | /** | |
2071 | * @timestamp: field containing the info when the packet was added to | |
2072 | * path | |
2073 | */ | |
95332477 | 2074 | unsigned long timestamp; |
8b84cc4f SE |
2075 | |
2076 | /** @neigh_node: pointer to original next hop neighbor of skb */ | |
95332477 | 2077 | struct batadv_neigh_node *neigh_node; |
8b84cc4f SE |
2078 | |
2079 | /** @skb: skb which can be encoded or used for decoding */ | |
95332477 | 2080 | struct sk_buff *skb; |
8b84cc4f SE |
2081 | |
2082 | /** @nc_path: pointer to path this nc packet is attached to */ | |
95332477 MH |
2083 | struct batadv_nc_path *nc_path; |
2084 | }; | |
2085 | ||
3c12de9a | 2086 | /** |
1a321b0d SW |
2087 | * struct batadv_skb_cb - control buffer structure used to store private data |
2088 | * relevant to batman-adv in the skb->cb buffer in skbs. | |
3c12de9a MH |
2089 | */ |
2090 | struct batadv_skb_cb { | |
8b84cc4f SE |
2091 | /** |
2092 | * @decoded: Marks a skb as decoded, which is checked when searching for | |
2093 | * coding opportunities in network-coding.c | |
2094 | */ | |
6486379d | 2095 | unsigned char decoded:1; |
8b84cc4f SE |
2096 | |
2097 | /** @num_bcasts: Counter for broadcast packet retransmissions */ | |
6486379d | 2098 | unsigned char num_bcasts; |
3c12de9a MH |
2099 | }; |
2100 | ||
88a32c9a ML |
2101 | /** |
2102 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
c6c8fea2 | 2103 | */ |
56303d34 | 2104 | struct batadv_forw_packet { |
a07369d7 SE |
2105 | /** |
2106 | * @list: list node for &batadv_priv.forw.bcast_list and | |
2107 | * &batadv_priv.forw.bat_list | |
2108 | */ | |
c6c8fea2 | 2109 | struct hlist_node list; |
8b84cc4f SE |
2110 | |
2111 | /** @cleanup_list: list node for purging functions */ | |
9b4aec64 | 2112 | struct hlist_node cleanup_list; |
8b84cc4f SE |
2113 | |
2114 | /** @send_time: execution time for delayed_work (packet sending) */ | |
c6c8fea2 | 2115 | unsigned long send_time; |
8b84cc4f SE |
2116 | |
2117 | /** | |
2118 | * @own: bool for locally generated packets (local OGMs are re-scheduled | |
2119 | * after sending) | |
2120 | */ | |
6b5e971a | 2121 | u8 own; |
8b84cc4f SE |
2122 | |
2123 | /** @skb: bcast packet's skb buffer */ | |
c6c8fea2 | 2124 | struct sk_buff *skb; |
8b84cc4f SE |
2125 | |
2126 | /** @packet_len: size of aggregated OGM packet inside the skb buffer */ | |
6b5e971a | 2127 | u16 packet_len; |
8b84cc4f SE |
2128 | |
2129 | /** @direct_link_flags: direct link flags for aggregated OGM packets */ | |
6b5e971a | 2130 | u32 direct_link_flags; |
8b84cc4f SE |
2131 | |
2132 | /** @num_packets: counter for aggregated OGMv1 packets */ | |
6b5e971a | 2133 | u8 num_packets; |
8b84cc4f SE |
2134 | |
2135 | /** @delayed_work: work queue callback item for packet sending */ | |
c6c8fea2 | 2136 | struct delayed_work delayed_work; |
8b84cc4f SE |
2137 | |
2138 | /** | |
2139 | * @if_incoming: pointer to incoming hard-iface or primary iface if | |
2140 | * locally generated packet | |
2141 | */ | |
56303d34 | 2142 | struct batadv_hard_iface *if_incoming; |
8b84cc4f SE |
2143 | |
2144 | /** | |
2145 | * @if_outgoing: packet where the packet should be sent to, or NULL if | |
2146 | * unspecified | |
2147 | */ | |
ef0a937f | 2148 | struct batadv_hard_iface *if_outgoing; |
8b84cc4f SE |
2149 | |
2150 | /** @queue_left: The queue (counter) this packet was applied to */ | |
a65e5481 | 2151 | atomic_t *queue_left; |
c6c8fea2 SE |
2152 | }; |
2153 | ||
29824a55 AQ |
2154 | /** |
2155 | * struct batadv_algo_iface_ops - mesh algorithm callbacks (interface specific) | |
29824a55 AQ |
2156 | */ |
2157 | struct batadv_algo_iface_ops { | |
8b84cc4f SE |
2158 | /** |
2159 | * @activate: start routing mechanisms when hard-interface is brought up | |
2160 | * (optional) | |
2161 | */ | |
29824a55 | 2162 | void (*activate)(struct batadv_hard_iface *hard_iface); |
8b84cc4f SE |
2163 | |
2164 | /** @enable: init routing info when hard-interface is enabled */ | |
29824a55 | 2165 | int (*enable)(struct batadv_hard_iface *hard_iface); |
8b84cc4f | 2166 | |
9e6b5648 SE |
2167 | /** @enabled: notification when hard-interface was enabled (optional) */ |
2168 | void (*enabled)(struct batadv_hard_iface *hard_iface); | |
2169 | ||
8b84cc4f | 2170 | /** @disable: de-init routing info when hard-interface is disabled */ |
29824a55 | 2171 | void (*disable)(struct batadv_hard_iface *hard_iface); |
8b84cc4f SE |
2172 | |
2173 | /** | |
2174 | * @update_mac: (re-)init mac addresses of the protocol information | |
2175 | * belonging to this hard-interface | |
2176 | */ | |
29824a55 | 2177 | void (*update_mac)(struct batadv_hard_iface *hard_iface); |
8b84cc4f SE |
2178 | |
2179 | /** @primary_set: called when primary interface is selected / changed */ | |
29824a55 AQ |
2180 | void (*primary_set)(struct batadv_hard_iface *hard_iface); |
2181 | }; | |
2182 | ||
2183 | /** | |
2184 | * struct batadv_algo_neigh_ops - mesh algorithm callbacks (neighbour specific) | |
29824a55 AQ |
2185 | */ |
2186 | struct batadv_algo_neigh_ops { | |
8b84cc4f | 2187 | /** @hardif_init: called on creation of single hop entry (optional) */ |
29824a55 | 2188 | void (*hardif_init)(struct batadv_hardif_neigh_node *neigh); |
8b84cc4f SE |
2189 | |
2190 | /** | |
2191 | * @cmp: compare the metrics of two neighbors for their respective | |
2192 | * outgoing interfaces | |
2193 | */ | |
29824a55 AQ |
2194 | int (*cmp)(struct batadv_neigh_node *neigh1, |
2195 | struct batadv_hard_iface *if_outgoing1, | |
2196 | struct batadv_neigh_node *neigh2, | |
2197 | struct batadv_hard_iface *if_outgoing2); | |
8b84cc4f SE |
2198 | |
2199 | /** | |
2200 | * @is_similar_or_better: check if neigh1 is equally similar or better | |
2201 | * than neigh2 for their respective outgoing interface from the metric | |
2202 | * prospective | |
2203 | */ | |
29824a55 AQ |
2204 | bool (*is_similar_or_better)(struct batadv_neigh_node *neigh1, |
2205 | struct batadv_hard_iface *if_outgoing1, | |
2206 | struct batadv_neigh_node *neigh2, | |
2207 | struct batadv_hard_iface *if_outgoing2); | |
8b84cc4f | 2208 | |
8b84cc4f | 2209 | /** @dump: dump neighbors to a netlink socket (optional) */ |
85cf8c85 MS |
2210 | void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, |
2211 | struct batadv_priv *priv, | |
2212 | struct batadv_hard_iface *hard_iface); | |
29824a55 AQ |
2213 | }; |
2214 | ||
2215 | /** | |
2216 | * struct batadv_algo_orig_ops - mesh algorithm callbacks (originator specific) | |
29824a55 AQ |
2217 | */ |
2218 | struct batadv_algo_orig_ops { | |
8b84cc4f | 2219 | /** @dump: dump originators to a netlink socket (optional) */ |
85cf8c85 MS |
2220 | void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, |
2221 | struct batadv_priv *priv, | |
2222 | struct batadv_hard_iface *hard_iface); | |
29824a55 AQ |
2223 | }; |
2224 | ||
08686943 AQ |
2225 | /** |
2226 | * struct batadv_algo_gw_ops - mesh algorithm callbacks (GW specific) | |
08686943 AQ |
2227 | */ |
2228 | struct batadv_algo_gw_ops { | |
8b84cc4f | 2229 | /** @init_sel_class: initialize GW selection class (optional) */ |
1a9070ec | 2230 | void (*init_sel_class)(struct batadv_priv *bat_priv); |
8b84cc4f SE |
2231 | |
2232 | /** | |
2233 | * @store_sel_class: parse and stores a new GW selection class | |
2234 | * (optional) | |
2235 | */ | |
08686943 AQ |
2236 | ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff, |
2237 | size_t count); | |
8b84cc4f SE |
2238 | /** |
2239 | * @get_best_gw_node: select the best GW from the list of available | |
2240 | * nodes (optional) | |
2241 | */ | |
34d99cfe AQ |
2242 | struct batadv_gw_node *(*get_best_gw_node) |
2243 | (struct batadv_priv *bat_priv); | |
8b84cc4f SE |
2244 | |
2245 | /** | |
2246 | * @is_eligible: check if a newly discovered GW is a potential candidate | |
2247 | * for the election as best GW (optional) | |
2248 | */ | |
34d99cfe AQ |
2249 | bool (*is_eligible)(struct batadv_priv *bat_priv, |
2250 | struct batadv_orig_node *curr_gw_orig, | |
2251 | struct batadv_orig_node *orig_node); | |
8b84cc4f | 2252 | |
8b84cc4f | 2253 | /** @dump: dump gateways to a netlink socket (optional) */ |
d7129daf SE |
2254 | void (*dump)(struct sk_buff *msg, struct netlink_callback *cb, |
2255 | struct batadv_priv *priv); | |
08686943 AQ |
2256 | }; |
2257 | ||
88a32c9a ML |
2258 | /** |
2259 | * struct batadv_algo_ops - mesh algorithm callbacks | |
88a32c9a | 2260 | */ |
56303d34 | 2261 | struct batadv_algo_ops { |
8b84cc4f | 2262 | /** @list: list node for the batadv_algo_list */ |
1c280471 | 2263 | struct hlist_node list; |
8b84cc4f SE |
2264 | |
2265 | /** @name: name of the algorithm */ | |
1c280471 | 2266 | char *name; |
8b84cc4f SE |
2267 | |
2268 | /** @iface: callbacks related to interface handling */ | |
29824a55 | 2269 | struct batadv_algo_iface_ops iface; |
8b84cc4f SE |
2270 | |
2271 | /** @neigh: callbacks related to neighbors handling */ | |
29824a55 | 2272 | struct batadv_algo_neigh_ops neigh; |
8b84cc4f SE |
2273 | |
2274 | /** @orig: callbacks related to originators handling */ | |
29824a55 | 2275 | struct batadv_algo_orig_ops orig; |
8b84cc4f SE |
2276 | |
2277 | /** @gw: callbacks related to GW mode */ | |
08686943 | 2278 | struct batadv_algo_gw_ops gw; |
1c280471 ML |
2279 | }; |
2280 | ||
2f1dfbe1 AQ |
2281 | /** |
2282 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
2283 | * is used to stored ARP entries needed for the global DAT cache | |
2f1dfbe1 AQ |
2284 | */ |
2285 | struct batadv_dat_entry { | |
8b84cc4f | 2286 | /** @ip: the IPv4 corresponding to this DAT/ARP entry */ |
2f1dfbe1 | 2287 | __be32 ip; |
8b84cc4f SE |
2288 | |
2289 | /** @mac_addr: the MAC address associated to the stored IPv4 */ | |
6b5e971a | 2290 | u8 mac_addr[ETH_ALEN]; |
8b84cc4f SE |
2291 | |
2292 | /** @vid: the vlan ID associated to this entry */ | |
be1db4f6 | 2293 | unsigned short vid; |
8b84cc4f SE |
2294 | |
2295 | /** | |
2296 | * @last_update: time in jiffies when this entry was refreshed last time | |
2297 | */ | |
2f1dfbe1 | 2298 | unsigned long last_update; |
8b84cc4f | 2299 | |
a07369d7 | 2300 | /** @hash_entry: hlist node for &batadv_priv_dat.hash */ |
2f1dfbe1 | 2301 | struct hlist_node hash_entry; |
8b84cc4f SE |
2302 | |
2303 | /** @refcount: number of contexts the object is used */ | |
68a6722c | 2304 | struct kref refcount; |
8b84cc4f SE |
2305 | |
2306 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
2f1dfbe1 AQ |
2307 | struct rcu_head rcu; |
2308 | }; | |
2309 | ||
c5caf4ef LL |
2310 | /** |
2311 | * struct batadv_hw_addr - a list entry for a MAC address | |
c5caf4ef LL |
2312 | */ |
2313 | struct batadv_hw_addr { | |
8b84cc4f | 2314 | /** @list: list node for the linking of entries */ |
c5caf4ef | 2315 | struct hlist_node list; |
8b84cc4f SE |
2316 | |
2317 | /** @addr: the MAC address of this list entry */ | |
c5caf4ef LL |
2318 | unsigned char addr[ETH_ALEN]; |
2319 | }; | |
2320 | ||
785ea114 AQ |
2321 | /** |
2322 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
785ea114 AQ |
2323 | */ |
2324 | struct batadv_dat_candidate { | |
8b84cc4f SE |
2325 | /** |
2326 | * @type: the type of the selected candidate. It can one of the | |
2327 | * following: | |
2328 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
2329 | * - BATADV_DAT_CANDIDATE_ORIG | |
2330 | */ | |
785ea114 | 2331 | int type; |
8b84cc4f SE |
2332 | |
2333 | /** | |
2334 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to | |
2335 | * the corresponding originator node structure | |
2336 | */ | |
785ea114 AQ |
2337 | struct batadv_orig_node *orig_node; |
2338 | }; | |
2339 | ||
ef261577 ML |
2340 | /** |
2341 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
ef261577 ML |
2342 | */ |
2343 | struct batadv_tvlv_container { | |
a07369d7 | 2344 | /** @list: hlist node for &batadv_priv_tvlv.container_list */ |
ef261577 | 2345 | struct hlist_node list; |
8b84cc4f SE |
2346 | |
2347 | /** @tvlv_hdr: tvlv header information needed to construct the tvlv */ | |
ef261577 | 2348 | struct batadv_tvlv_hdr tvlv_hdr; |
8b84cc4f SE |
2349 | |
2350 | /** @refcount: number of contexts the object is used */ | |
f7157dd1 | 2351 | struct kref refcount; |
ef261577 ML |
2352 | }; |
2353 | ||
2354 | /** | |
2355 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
ef261577 ML |
2356 | */ |
2357 | struct batadv_tvlv_handler { | |
a07369d7 | 2358 | /** @list: hlist node for &batadv_priv_tvlv.handler_list */ |
ef261577 | 2359 | struct hlist_node list; |
8b84cc4f SE |
2360 | |
2361 | /** | |
2362 | * @ogm_handler: handler callback which is given the tvlv payload to | |
2363 | * process on incoming OGM packets | |
2364 | */ | |
ef261577 ML |
2365 | void (*ogm_handler)(struct batadv_priv *bat_priv, |
2366 | struct batadv_orig_node *orig, | |
6b5e971a | 2367 | u8 flags, void *tvlv_value, u16 tvlv_value_len); |
8b84cc4f SE |
2368 | |
2369 | /** | |
2370 | * @unicast_handler: handler callback which is given the tvlv payload to | |
2371 | * process on incoming unicast tvlv packets | |
2372 | */ | |
ef261577 | 2373 | int (*unicast_handler)(struct batadv_priv *bat_priv, |
6b5e971a SE |
2374 | u8 *src, u8 *dst, |
2375 | void *tvlv_value, u16 tvlv_value_len); | |
8b84cc4f SE |
2376 | |
2377 | /** @type: tvlv type this handler feels responsible for */ | |
6b5e971a | 2378 | u8 type; |
8b84cc4f SE |
2379 | |
2380 | /** @version: tvlv version this handler feels responsible for */ | |
6b5e971a | 2381 | u8 version; |
8b84cc4f SE |
2382 | |
2383 | /** @flags: tvlv handler flags */ | |
6b5e971a | 2384 | u8 flags; |
8b84cc4f SE |
2385 | |
2386 | /** @refcount: number of contexts the object is used */ | |
32836f56 | 2387 | struct kref refcount; |
8b84cc4f SE |
2388 | |
2389 | /** @rcu: struct used for freeing in an RCU-safe manner */ | |
ef261577 ML |
2390 | struct rcu_head rcu; |
2391 | }; | |
2392 | ||
2393 | /** | |
2394 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
ef261577 ML |
2395 | */ |
2396 | enum batadv_tvlv_handler_flags { | |
8b84cc4f SE |
2397 | /** |
2398 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function | |
2399 | * will call this handler even if its type was not found (with no data) | |
2400 | */ | |
ef261577 | 2401 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), |
8b84cc4f SE |
2402 | |
2403 | /** | |
2404 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the | |
2405 | * API marks a handler as being called, so it won't be called if the | |
2406 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
2407 | */ | |
ef261577 ML |
2408 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), |
2409 | }; | |
2410 | ||
c6c8fea2 | 2411 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |