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e19f9759 | 1 | /* Copyright (C) 2007-2014 B.A.T.M.A.N. contributors: |
c6c8fea2 SE |
2 | * |
3 | * Marek Lindner, Simon Wunderlich | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
ebf38fb7 | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
c6c8fea2 SE |
16 | */ |
17 | ||
c6c8fea2 SE |
18 | #ifndef _NET_BATMAN_ADV_TYPES_H_ |
19 | #define _NET_BATMAN_ADV_TYPES_H_ | |
20 | ||
21 | #include "packet.h" | |
22 | #include "bitarray.h" | |
c11fdfae | 23 | #include <linux/kernel.h> |
c6c8fea2 | 24 | |
17224474 AQ |
25 | #ifdef CONFIG_BATMAN_ADV_DAT |
26 | ||
785ea114 AQ |
27 | /* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed, |
28 | * BATADV_DAT_ADDR_MAX is changed as well. | |
29 | * | |
30 | * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
31 | */ | |
32 | #define batadv_dat_addr_t uint16_t | |
33 | ||
17224474 AQ |
34 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
35 | ||
6c413b1c AQ |
36 | /** |
37 | * enum batadv_dhcp_recipient - dhcp destination | |
38 | * @BATADV_DHCP_NO: packet is not a dhcp message | |
39 | * @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server | |
40 | * @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client | |
41 | */ | |
42 | enum batadv_dhcp_recipient { | |
43 | BATADV_DHCP_NO = 0, | |
44 | BATADV_DHCP_TO_SERVER, | |
45 | BATADV_DHCP_TO_CLIENT, | |
46 | }; | |
47 | ||
3c4f7ab6 AQ |
48 | /** |
49 | * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the | |
50 | * wire only | |
51 | */ | |
52 | #define BATADV_TT_REMOTE_MASK 0x00FF | |
53 | ||
0eb01568 AQ |
54 | /** |
55 | * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync | |
56 | * among the nodes. These flags are used to compute the global/local CRC | |
57 | */ | |
58 | #define BATADV_TT_SYNC_MASK 0x00F0 | |
59 | ||
14511519 ML |
60 | /** |
61 | * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data | |
62 | * @ogm_buff: buffer holding the OGM packet | |
63 | * @ogm_buff_len: length of the OGM packet buffer | |
64 | * @ogm_seqno: OGM sequence number - used to identify each OGM | |
65 | */ | |
66 | struct batadv_hard_iface_bat_iv { | |
67 | unsigned char *ogm_buff; | |
68 | int ogm_buff_len; | |
69 | atomic_t ogm_seqno; | |
70 | }; | |
71 | ||
88a32c9a ML |
72 | /** |
73 | * struct batadv_hard_iface - network device known to batman-adv | |
74 | * @list: list node for batadv_hardif_list | |
75 | * @if_num: identificator of the interface | |
76 | * @if_status: status of the interface for batman-adv | |
77 | * @net_dev: pointer to the net_device | |
caf65bfc | 78 | * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) |
88a32c9a ML |
79 | * @hardif_obj: kobject of the per interface sysfs "mesh" directory |
80 | * @refcount: number of contexts the object is used | |
81 | * @batman_adv_ptype: packet type describing packets that should be processed by | |
82 | * batman-adv for this interface | |
83 | * @soft_iface: the batman-adv interface which uses this network interface | |
84 | * @rcu: struct used for freeing in an RCU-safe manner | |
85 | * @bat_iv: BATMAN IV specific per hard interface data | |
5bc44dc8 | 86 | * @cleanup_work: work queue callback item for hard interface deinit |
5bc7c1eb | 87 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
88a32c9a | 88 | */ |
56303d34 | 89 | struct batadv_hard_iface { |
c6c8fea2 SE |
90 | struct list_head list; |
91 | int16_t if_num; | |
92 | char if_status; | |
93 | struct net_device *net_dev; | |
caf65bfc | 94 | uint8_t num_bcasts; |
c6c8fea2 | 95 | struct kobject *hardif_obj; |
ed75ccbe | 96 | atomic_t refcount; |
c6c8fea2 SE |
97 | struct packet_type batman_adv_ptype; |
98 | struct net_device *soft_iface; | |
99 | struct rcu_head rcu; | |
14511519 | 100 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 101 | struct work_struct cleanup_work; |
5bc7c1eb | 102 | struct dentry *debug_dir; |
c6c8fea2 SE |
103 | }; |
104 | ||
7351a482 SW |
105 | /** |
106 | * struct batadv_orig_ifinfo - originator info per outgoing interface | |
107 | * @list: list node for orig_node::ifinfo_list | |
108 | * @if_outgoing: pointer to outgoing hard interface | |
109 | * @router: router that should be used to reach this originator | |
110 | * @last_real_seqno: last and best known sequence number | |
111 | * @last_ttl: ttl of last received packet | |
112 | * @batman_seqno_reset: time when the batman seqno window was reset | |
113 | * @refcount: number of contexts the object is used | |
114 | * @rcu: struct used for freeing in an RCU-safe manner | |
115 | */ | |
116 | struct batadv_orig_ifinfo { | |
117 | struct hlist_node list; | |
118 | struct batadv_hard_iface *if_outgoing; | |
119 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ | |
120 | uint32_t last_real_seqno; | |
121 | uint8_t last_ttl; | |
122 | unsigned long batman_seqno_reset; | |
123 | atomic_t refcount; | |
124 | struct rcu_head rcu; | |
125 | }; | |
126 | ||
610bfc6b MH |
127 | /** |
128 | * struct batadv_frag_table_entry - head in the fragment buffer table | |
129 | * @head: head of list with fragments | |
130 | * @lock: lock to protect the list of fragments | |
131 | * @timestamp: time (jiffie) of last received fragment | |
132 | * @seqno: sequence number of the fragments in the list | |
133 | * @size: accumulated size of packets in list | |
134 | */ | |
135 | struct batadv_frag_table_entry { | |
136 | struct hlist_head head; | |
137 | spinlock_t lock; /* protects head */ | |
138 | unsigned long timestamp; | |
139 | uint16_t seqno; | |
140 | uint16_t size; | |
141 | }; | |
142 | ||
143 | /** | |
144 | * struct batadv_frag_list_entry - entry in a list of fragments | |
145 | * @list: list node information | |
146 | * @skb: fragment | |
147 | * @no: fragment number in the set | |
148 | */ | |
149 | struct batadv_frag_list_entry { | |
150 | struct hlist_node list; | |
151 | struct sk_buff *skb; | |
152 | uint8_t no; | |
153 | }; | |
154 | ||
7ea7b4a1 AQ |
155 | /** |
156 | * struct batadv_vlan_tt - VLAN specific TT attributes | |
157 | * @crc: CRC32 checksum of the entries belonging to this vlan | |
158 | * @num_entries: number of TT entries for this VLAN | |
159 | */ | |
160 | struct batadv_vlan_tt { | |
161 | uint32_t crc; | |
162 | atomic_t num_entries; | |
163 | }; | |
164 | ||
165 | /** | |
1a321b0d | 166 | * struct batadv_orig_node_vlan - VLAN specific data per orig_node |
7ea7b4a1 AQ |
167 | * @vid: the VLAN identifier |
168 | * @tt: VLAN specific TT attributes | |
169 | * @list: list node for orig_node::vlan_list | |
170 | * @refcount: number of context where this object is currently in use | |
171 | * @rcu: struct used for freeing in a RCU-safe manner | |
172 | */ | |
173 | struct batadv_orig_node_vlan { | |
174 | unsigned short vid; | |
175 | struct batadv_vlan_tt tt; | |
176 | struct list_head list; | |
177 | atomic_t refcount; | |
178 | struct rcu_head rcu; | |
179 | }; | |
180 | ||
bbad0a5e AQ |
181 | /** |
182 | * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members | |
183 | * @bcast_own: bitfield containing the number of our OGMs this orig_node | |
184 | * rebroadcasted "back" to us (relative to last_real_seqno) | |
185 | * @bcast_own_sum: counted result of bcast_own | |
186 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, | |
187 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
188 | */ | |
189 | struct batadv_orig_bat_iv { | |
190 | unsigned long *bcast_own; | |
191 | uint8_t *bcast_own_sum; | |
192 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, | |
193 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
194 | */ | |
195 | spinlock_t ogm_cnt_lock; | |
196 | }; | |
197 | ||
2c53040f | 198 | /** |
b6d0ab7c | 199 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 200 | * @orig: originator ethernet address |
b6d0ab7c | 201 | * @primary_addr: hosts primary interface address |
7351a482 | 202 | * @ifinfo_list: list for routers per outgoing interface |
f3b3d901 | 203 | * @last_bonding_candidate: pointer to last ifinfo of last used router |
88a32c9a | 204 | * @batadv_dat_addr_t: address of the orig node in the distributed hash |
88a32c9a | 205 | * @last_seen: time when last packet from this node was received |
b6d0ab7c | 206 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
17cf0ea4 | 207 | * @capabilities: announced capabilities of this originator |
88a32c9a | 208 | * @last_ttvn: last seen translation table version number |
88a32c9a ML |
209 | * @tt_buff: last tt changeset this node received from the orig node |
210 | * @tt_buff_len: length of the last tt changeset this node received from the | |
211 | * orig node | |
212 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
88a32c9a ML |
213 | * @tt_initialised: bool keeping track of whether or not this node have received |
214 | * any translation table information from the orig node yet | |
a70a9aa9 AQ |
215 | * @tt_lock: prevents from updating the table while reading it. Table update is |
216 | * made up by two operations (data structure update and metdata -CRC/TTVN- | |
217 | * recalculation) and they have to be executed atomically in order to avoid | |
218 | * another thread to read the table/metadata between those. | |
88a32c9a ML |
219 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
220 | * from this orig node this host already has seen (relative to | |
221 | * last_bcast_seqno) | |
b6d0ab7c | 222 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a | 223 | * @neigh_list: list of potential next hop neighbor towards this orig node |
f6c8b711 | 224 | * @neigh_list_lock: lock protecting neigh_list and router |
88a32c9a ML |
225 | * @hash_entry: hlist node for batadv_priv::orig_hash |
226 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
88a32c9a | 227 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno |
88a32c9a ML |
228 | * @refcount: number of contexts the object is used |
229 | * @rcu: struct used for freeing in an RCU-safe manner | |
d56b1705 MH |
230 | * @in_coding_list: list of nodes this orig can hear |
231 | * @out_coding_list: list of nodes that can hear this orig | |
232 | * @in_coding_list_lock: protects in_coding_list | |
233 | * @out_coding_list_lock: protects out_coding_list | |
610bfc6b | 234 | * @fragments: array with heads for fragment chains |
7ea7b4a1 AQ |
235 | * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the |
236 | * originator represented by this object | |
237 | * @vlan_list_lock: lock protecting vlan_list | |
bbad0a5e | 238 | * @bat_iv: B.A.T.M.A.N. IV private structure |
c6c8fea2 | 239 | */ |
56303d34 | 240 | struct batadv_orig_node { |
c6c8fea2 SE |
241 | uint8_t orig[ETH_ALEN]; |
242 | uint8_t primary_addr[ETH_ALEN]; | |
7351a482 | 243 | struct hlist_head ifinfo_list; |
f3b3d901 | 244 | struct batadv_orig_ifinfo *last_bonding_candidate; |
17224474 | 245 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 246 | batadv_dat_addr_t dat_addr; |
17224474 | 247 | #endif |
d7b2a97e | 248 | unsigned long last_seen; |
c6c8fea2 | 249 | unsigned long bcast_seqno_reset; |
17cf0ea4 | 250 | uint8_t capabilities; |
88a32c9a | 251 | atomic_t last_ttvn; |
2dafb49d AQ |
252 | unsigned char *tt_buff; |
253 | int16_t tt_buff_len; | |
88a32c9a | 254 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
17071578 | 255 | bool tt_initialised; |
a70a9aa9 AQ |
256 | /* prevents from changing the table while reading it */ |
257 | spinlock_t tt_lock; | |
42d0b044 | 258 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 259 | uint32_t last_bcast_seqno; |
9591a79f | 260 | struct hlist_head neigh_list; |
f6c8b711 | 261 | /* neigh_list_lock protects: neigh_list and router */ |
88a32c9a | 262 | spinlock_t neigh_list_lock; |
7aadf889 | 263 | struct hlist_node hash_entry; |
56303d34 | 264 | struct batadv_priv *bat_priv; |
88a32c9a | 265 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 266 | spinlock_t bcast_seqno_lock; |
88a32c9a ML |
267 | atomic_t refcount; |
268 | struct rcu_head rcu; | |
d56b1705 MH |
269 | #ifdef CONFIG_BATMAN_ADV_NC |
270 | struct list_head in_coding_list; | |
271 | struct list_head out_coding_list; | |
272 | spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
273 | spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
274 | #endif | |
610bfc6b | 275 | struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; |
7ea7b4a1 AQ |
276 | struct list_head vlan_list; |
277 | spinlock_t vlan_list_lock; /* protects vlan_list */ | |
bbad0a5e | 278 | struct batadv_orig_bat_iv bat_iv; |
c6c8fea2 SE |
279 | }; |
280 | ||
17cf0ea4 ML |
281 | /** |
282 | * enum batadv_orig_capabilities - orig node capabilities | |
283 | * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled | |
3f4841ff | 284 | * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled |
17cf0ea4 ML |
285 | */ |
286 | enum batadv_orig_capabilities { | |
287 | BATADV_ORIG_CAPA_HAS_DAT = BIT(0), | |
3f4841ff | 288 | BATADV_ORIG_CAPA_HAS_NC = BIT(1), |
17cf0ea4 ML |
289 | }; |
290 | ||
88a32c9a ML |
291 | /** |
292 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
293 | * @list: list node for batadv_priv_gw::list | |
294 | * @orig_node: pointer to corresponding orig node | |
414254e3 ML |
295 | * @bandwidth_down: advertised uplink download bandwidth |
296 | * @bandwidth_up: advertised uplink upload bandwidth | |
88a32c9a ML |
297 | * @deleted: this struct is scheduled for deletion |
298 | * @refcount: number of contexts the object is used | |
299 | * @rcu: struct used for freeing in an RCU-safe manner | |
300 | */ | |
56303d34 | 301 | struct batadv_gw_node { |
c6c8fea2 | 302 | struct hlist_node list; |
56303d34 | 303 | struct batadv_orig_node *orig_node; |
414254e3 ML |
304 | uint32_t bandwidth_down; |
305 | uint32_t bandwidth_up; | |
c6c8fea2 | 306 | unsigned long deleted; |
25b6d3c1 | 307 | atomic_t refcount; |
c6c8fea2 SE |
308 | struct rcu_head rcu; |
309 | }; | |
310 | ||
88a32c9a | 311 | /** |
89652331 SW |
312 | * struct batadv_neigh_node - structure for single hops neighbors |
313 | * @list: list node for batadv_orig_node::neigh_list | |
314 | * @orig_node: pointer to corresponding orig_node | |
315 | * @addr: the MAC address of the neighboring interface | |
316 | * @ifinfo_list: list for routing metrics per outgoing interface | |
317 | * @ifinfo_lock: lock protecting private ifinfo members and list | |
318 | * @if_incoming: pointer to incoming hard interface | |
319 | * @last_seen: when last packet via this neighbor was received | |
320 | * @last_ttl: last received ttl from this neigh node | |
321 | * @rcu: struct used for freeing in an RCU-safe manner | |
322 | * @bat_iv: B.A.T.M.A.N. IV private structure | |
323 | */ | |
324 | struct batadv_neigh_node { | |
325 | struct hlist_node list; | |
326 | struct batadv_orig_node *orig_node; | |
327 | uint8_t addr[ETH_ALEN]; | |
328 | struct hlist_head ifinfo_list; | |
329 | spinlock_t ifinfo_lock; /* protects ifinfo_list and its members */ | |
330 | struct batadv_hard_iface *if_incoming; | |
331 | unsigned long last_seen; | |
332 | atomic_t refcount; | |
333 | struct rcu_head rcu; | |
334 | }; | |
335 | ||
1b371d13 | 336 | /** |
1a321b0d | 337 | * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing |
89652331 | 338 | * interface for BATMAN IV |
88a32c9a ML |
339 | * @tq_recv: ring buffer of received TQ values from this neigh node |
340 | * @tq_index: ring buffer index | |
341 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
88a32c9a ML |
342 | * @real_bits: bitfield containing the number of OGMs received from this neigh |
343 | * node (relative to orig_node->last_real_seqno) | |
344 | * @real_packet_count: counted result of real_bits | |
0538f759 | 345 | */ |
89652331 | 346 | struct batadv_neigh_ifinfo_bat_iv { |
0538f759 AQ |
347 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
348 | uint8_t tq_index; | |
349 | uint8_t tq_avg; | |
350 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); | |
351 | uint8_t real_packet_count; | |
0538f759 AQ |
352 | }; |
353 | ||
1b371d13 SW |
354 | /** |
355 | * struct batadv_neigh_ifinfo - neighbor information per outgoing interface | |
89652331 SW |
356 | * @list: list node for batadv_neigh_node::ifinfo_list |
357 | * @if_outgoing: pointer to outgoing hard interface | |
358 | * @bat_iv: B.A.T.M.A.N. IV private structure | |
0538f759 | 359 | * @last_ttl: last received ttl from this neigh node |
88a32c9a | 360 | * @refcount: number of contexts the object is used |
89652331 | 361 | * @rcu: struct used for freeing in a RCU-safe manner |
c6c8fea2 | 362 | */ |
89652331 | 363 | struct batadv_neigh_ifinfo { |
9591a79f | 364 | struct hlist_node list; |
89652331 SW |
365 | struct batadv_hard_iface *if_outgoing; |
366 | struct batadv_neigh_ifinfo_bat_iv bat_iv; | |
c6c8fea2 | 367 | uint8_t last_ttl; |
88a32c9a ML |
368 | atomic_t refcount; |
369 | struct rcu_head rcu; | |
c6c8fea2 SE |
370 | }; |
371 | ||
88a32c9a ML |
372 | /** |
373 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
374 | * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast | |
375 | * @crc: crc32 checksum of broadcast payload | |
376 | * @entrytime: time when the broadcast packet was received | |
377 | */ | |
7a5cc242 | 378 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 379 | struct batadv_bcast_duplist_entry { |
fe2da6ff | 380 | uint8_t orig[ETH_ALEN]; |
004e86fc | 381 | __be32 crc; |
fe2da6ff SW |
382 | unsigned long entrytime; |
383 | }; | |
7a5cc242 | 384 | #endif |
c6c8fea2 | 385 | |
88a32c9a ML |
386 | /** |
387 | * enum batadv_counters - indices for traffic counters | |
388 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
389 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
390 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
391 | * @BATADV_CNT_RX: received payload traffic packet counter | |
392 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
393 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
394 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
395 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
396 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
397 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
398 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
ee75ed88 MH |
399 | * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter |
400 | * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
610bfc6b MH |
401 | * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter |
402 | * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
403 | * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter | |
404 | * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
88a32c9a ML |
405 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter |
406 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
407 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
408 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
409 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
410 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
411 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
412 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
413 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
414 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
415 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
416 | * counter | |
3c12de9a MH |
417 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter |
418 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
419 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
420 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
612d2b4f | 421 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding |
2df5278b MH |
422 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter |
423 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
424 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
425 | * counter | |
426 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
427 | * mode. | |
88a32c9a ML |
428 | * @BATADV_CNT_NUM: number of traffic counters |
429 | */ | |
d69909d2 | 430 | enum batadv_counters { |
1c9b0550 ML |
431 | BATADV_CNT_TX, |
432 | BATADV_CNT_TX_BYTES, | |
433 | BATADV_CNT_TX_DROPPED, | |
434 | BATADV_CNT_RX, | |
435 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
436 | BATADV_CNT_FORWARD, |
437 | BATADV_CNT_FORWARD_BYTES, | |
438 | BATADV_CNT_MGMT_TX, | |
439 | BATADV_CNT_MGMT_TX_BYTES, | |
440 | BATADV_CNT_MGMT_RX, | |
441 | BATADV_CNT_MGMT_RX_BYTES, | |
ee75ed88 MH |
442 | BATADV_CNT_FRAG_TX, |
443 | BATADV_CNT_FRAG_TX_BYTES, | |
610bfc6b MH |
444 | BATADV_CNT_FRAG_RX, |
445 | BATADV_CNT_FRAG_RX_BYTES, | |
446 | BATADV_CNT_FRAG_FWD, | |
447 | BATADV_CNT_FRAG_FWD_BYTES, | |
d69909d2 SE |
448 | BATADV_CNT_TT_REQUEST_TX, |
449 | BATADV_CNT_TT_REQUEST_RX, | |
450 | BATADV_CNT_TT_RESPONSE_TX, | |
451 | BATADV_CNT_TT_RESPONSE_RX, | |
452 | BATADV_CNT_TT_ROAM_ADV_TX, | |
453 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
454 | #ifdef CONFIG_BATMAN_ADV_DAT |
455 | BATADV_CNT_DAT_GET_TX, | |
456 | BATADV_CNT_DAT_GET_RX, | |
457 | BATADV_CNT_DAT_PUT_TX, | |
458 | BATADV_CNT_DAT_PUT_RX, | |
459 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
3c12de9a MH |
460 | #endif |
461 | #ifdef CONFIG_BATMAN_ADV_NC | |
462 | BATADV_CNT_NC_CODE, | |
463 | BATADV_CNT_NC_CODE_BYTES, | |
464 | BATADV_CNT_NC_RECODE, | |
465 | BATADV_CNT_NC_RECODE_BYTES, | |
612d2b4f | 466 | BATADV_CNT_NC_BUFFER, |
2df5278b MH |
467 | BATADV_CNT_NC_DECODE, |
468 | BATADV_CNT_NC_DECODE_BYTES, | |
469 | BATADV_CNT_NC_DECODE_FAILED, | |
470 | BATADV_CNT_NC_SNIFFED, | |
4046b24a | 471 | #endif |
d69909d2 | 472 | BATADV_CNT_NUM, |
f8214865 MH |
473 | }; |
474 | ||
807736f6 SE |
475 | /** |
476 | * struct batadv_priv_tt - per mesh interface translation table data | |
477 | * @vn: translation table version number | |
88a32c9a | 478 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 479 | * @local_changes: changes registered in an originator interval |
807736f6 | 480 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
481 | * @local_hash: local translation table hash table |
482 | * @global_hash: global translation table hash table | |
483 | * @req_list: list of pending & unanswered tt_requests | |
484 | * @roam_list: list of the last roaming events of each client limiting the | |
485 | * number of roaming events to avoid route flapping | |
486 | * @changes_list_lock: lock protecting changes_list | |
487 | * @req_list_lock: lock protecting req_list | |
488 | * @roam_list_lock: lock protecting roam_list | |
88a32c9a ML |
489 | * @last_changeset: last tt changeset this host has generated |
490 | * @last_changeset_len: length of last tt changeset this host has generated | |
491 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
a70a9aa9 AQ |
492 | * @commit_lock: prevents from executing a local TT commit while reading the |
493 | * local table. The local TT commit is made up by two operations (data | |
494 | * structure update and metdata -CRC/TTVN- recalculation) and they have to be | |
495 | * executed atomically in order to avoid another thread to read the | |
496 | * table/metadata between those. | |
88a32c9a | 497 | * @work: work queue callback item for translation table purging |
807736f6 SE |
498 | */ |
499 | struct batadv_priv_tt { | |
500 | atomic_t vn; | |
501 | atomic_t ogm_append_cnt; | |
502 | atomic_t local_changes; | |
807736f6 SE |
503 | struct list_head changes_list; |
504 | struct batadv_hashtable *local_hash; | |
505 | struct batadv_hashtable *global_hash; | |
506 | struct list_head req_list; | |
507 | struct list_head roam_list; | |
508 | spinlock_t changes_list_lock; /* protects changes */ | |
509 | spinlock_t req_list_lock; /* protects req_list */ | |
510 | spinlock_t roam_list_lock; /* protects roam_list */ | |
807736f6 SE |
511 | unsigned char *last_changeset; |
512 | int16_t last_changeset_len; | |
88a32c9a ML |
513 | /* protects last_changeset & last_changeset_len */ |
514 | spinlock_t last_changeset_lock; | |
a70a9aa9 AQ |
515 | /* prevents from executing a commit while reading the table */ |
516 | spinlock_t commit_lock; | |
807736f6 SE |
517 | struct delayed_work work; |
518 | }; | |
519 | ||
88a32c9a ML |
520 | /** |
521 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
522 | * @num_requests; number of bla requests in flight | |
523 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
524 | * @backbone_hash: hash table containing all detected backbone gateways | |
525 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
526 | * duplicate suppression) | |
527 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
528 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
529 | * @claim_dest: local claim data (e.g. claim group) | |
530 | * @work: work queue callback item for cleanups & bla announcements | |
531 | */ | |
807736f6 SE |
532 | #ifdef CONFIG_BATMAN_ADV_BLA |
533 | struct batadv_priv_bla { | |
88a32c9a | 534 | atomic_t num_requests; |
807736f6 SE |
535 | struct batadv_hashtable *claim_hash; |
536 | struct batadv_hashtable *backbone_hash; | |
537 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
538 | int bcast_duplist_curr; | |
88a32c9a | 539 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 540 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
541 | struct batadv_bla_claim_dst claim_dest; |
542 | struct delayed_work work; | |
543 | }; | |
544 | #endif | |
545 | ||
88a32c9a | 546 | /** |
1a321b0d | 547 | * struct batadv_priv_debug_log - debug logging data |
88a32c9a ML |
548 | * @log_buff: buffer holding the logs (ring bufer) |
549 | * @log_start: index of next character to read | |
550 | * @log_end: index of next character to write | |
551 | * @lock: lock protecting log_buff, log_start & log_end | |
552 | * @queue_wait: log reader's wait queue | |
553 | */ | |
0abf5d81 ML |
554 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
555 | struct batadv_priv_debug_log { | |
556 | char log_buff[BATADV_LOG_BUF_LEN]; | |
557 | unsigned long log_start; | |
558 | unsigned long log_end; | |
559 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
560 | wait_queue_head_t queue_wait; | |
561 | }; | |
562 | #endif | |
563 | ||
88a32c9a ML |
564 | /** |
565 | * struct batadv_priv_gw - per mesh interface gateway data | |
566 | * @list: list of available gateway nodes | |
567 | * @list_lock: lock protecting gw_list & curr_gw | |
568 | * @curr_gw: pointer to currently selected gateway node | |
414254e3 ML |
569 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) |
570 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
88a32c9a ML |
571 | * @reselect: bool indicating a gateway re-selection is in progress |
572 | */ | |
807736f6 SE |
573 | struct batadv_priv_gw { |
574 | struct hlist_head list; | |
88a32c9a | 575 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 | 576 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
414254e3 ML |
577 | atomic_t bandwidth_down; |
578 | atomic_t bandwidth_up; | |
807736f6 SE |
579 | atomic_t reselect; |
580 | }; | |
581 | ||
ef261577 ML |
582 | /** |
583 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
584 | * @container_list: list of registered tvlv containers to be sent with each OGM | |
585 | * @handler_list: list of the various tvlv content handlers | |
586 | * @container_list_lock: protects tvlv container list access | |
587 | * @handler_list_lock: protects handler list access | |
588 | */ | |
589 | struct batadv_priv_tvlv { | |
590 | struct hlist_head container_list; | |
591 | struct hlist_head handler_list; | |
592 | spinlock_t container_list_lock; /* protects container_list */ | |
593 | spinlock_t handler_list_lock; /* protects handler_list */ | |
594 | }; | |
595 | ||
785ea114 AQ |
596 | /** |
597 | * struct batadv_priv_dat - per mesh interface DAT private data | |
598 | * @addr: node DAT address | |
2f1dfbe1 AQ |
599 | * @hash: hashtable representing the local ARP cache |
600 | * @work: work queue callback item for cache purging | |
785ea114 | 601 | */ |
17224474 | 602 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 AQ |
603 | struct batadv_priv_dat { |
604 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
605 | struct batadv_hashtable *hash; |
606 | struct delayed_work work; | |
785ea114 | 607 | }; |
17224474 | 608 | #endif |
785ea114 | 609 | |
c5caf4ef LL |
610 | #ifdef CONFIG_BATMAN_ADV_MCAST |
611 | /** | |
612 | * struct batadv_priv_mcast - per mesh interface mcast data | |
613 | * @mla_list: list of multicast addresses we are currently announcing via TT | |
614 | */ | |
615 | struct batadv_priv_mcast { | |
616 | struct hlist_head mla_list; | |
617 | }; | |
618 | #endif | |
619 | ||
d353d8d4 MH |
620 | /** |
621 | * struct batadv_priv_nc - per mesh interface network coding private data | |
622 | * @work: work queue callback item for cleanup | |
d56b1705 MH |
623 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
624 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
95332477 | 625 | * @max_fwd_delay: maximum packet forward delay to allow coding of packets |
612d2b4f | 626 | * @max_buffer_time: buffer time for sniffed packets used to decoding |
95332477 | 627 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush |
612d2b4f | 628 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge |
95332477 MH |
629 | * @coding_hash: Hash table used to buffer skbs while waiting for another |
630 | * incoming skb to code it with. Skbs are added to the buffer just before being | |
631 | * forwarded in routing.c | |
612d2b4f MH |
632 | * @decoding_hash: Hash table used to buffer skbs that might be needed to decode |
633 | * a received coded skb. The buffer is used for 1) skbs arriving on the | |
634 | * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
635 | * forwarded by batman-adv. | |
d353d8d4 MH |
636 | */ |
637 | struct batadv_priv_nc { | |
638 | struct delayed_work work; | |
d56b1705 MH |
639 | struct dentry *debug_dir; |
640 | u8 min_tq; | |
95332477 | 641 | u32 max_fwd_delay; |
612d2b4f | 642 | u32 max_buffer_time; |
95332477 | 643 | unsigned long timestamp_fwd_flush; |
612d2b4f | 644 | unsigned long timestamp_sniffed_purge; |
95332477 | 645 | struct batadv_hashtable *coding_hash; |
612d2b4f | 646 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
647 | }; |
648 | ||
5d2c05b2 AQ |
649 | /** |
650 | * struct batadv_softif_vlan - per VLAN attributes set | |
651 | * @vid: VLAN identifier | |
652 | * @kobj: kobject for sysfs vlan subdirectory | |
b8cbd81d | 653 | * @ap_isolation: AP isolation state |
7ea7b4a1 | 654 | * @tt: TT private attributes (VLAN specific) |
5d2c05b2 AQ |
655 | * @list: list node for bat_priv::softif_vlan_list |
656 | * @refcount: number of context where this object is currently in use | |
657 | * @rcu: struct used for freeing in a RCU-safe manner | |
658 | */ | |
659 | struct batadv_softif_vlan { | |
660 | unsigned short vid; | |
661 | struct kobject *kobj; | |
b8cbd81d | 662 | atomic_t ap_isolation; /* boolean */ |
7ea7b4a1 | 663 | struct batadv_vlan_tt tt; |
5d2c05b2 AQ |
664 | struct hlist_node list; |
665 | atomic_t refcount; | |
666 | struct rcu_head rcu; | |
667 | }; | |
668 | ||
88a32c9a ML |
669 | /** |
670 | * struct batadv_priv - per mesh interface data | |
671 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 672 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
673 | * @stats: structure holding the data for the ndo_get_stats() call |
674 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
675 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
676 | * @bonding: bool indicating whether traffic bonding is enabled | |
677 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
a19d3d85 ML |
678 | * @packet_size_max: max packet size that can be transmitted via |
679 | * multiple fragmented skbs or a single frame if fragmentation is disabled | |
ee75ed88 | 680 | * @frag_seqno: incremental counter to identify chains of egress fragments |
88a32c9a ML |
681 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is |
682 | * enabled | |
683 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
684 | * enabled | |
88a32c9a ML |
685 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) |
686 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
88a32c9a ML |
687 | * @orig_interval: OGM broadcast interval in milliseconds |
688 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
689 | * @log_level: configured log level (see batadv_dbg_level) | |
690 | * @bcast_seqno: last sent broadcast packet sequence number | |
691 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
692 | * @batman_queue_left: number of remaining OGM packet slots | |
693 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
694 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
695 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
696 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
697 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
698 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
699 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
700 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
701 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 702 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
703 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
704 | * becomes the primary interface | |
705 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
5d2c05b2 AQ |
706 | * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top |
707 | * of the mesh interface represented by this object | |
708 | * @softif_vlan_list_lock: lock protecting softif_vlan_list | |
88a32c9a ML |
709 | * @bla: bridge loope avoidance data |
710 | * @debug_log: holding debug logging relevant data | |
711 | * @gw: gateway data | |
712 | * @tt: translation table data | |
ef261577 | 713 | * @tvlv: type-version-length-value data |
88a32c9a | 714 | * @dat: distributed arp table data |
c5caf4ef | 715 | * @mcast: multicast data |
d353d8d4 MH |
716 | * @network_coding: bool indicating whether network coding is enabled |
717 | * @batadv_priv_nc: network coding data | |
88a32c9a | 718 | */ |
56303d34 | 719 | struct batadv_priv { |
c6c8fea2 | 720 | atomic_t mesh_state; |
5bc44dc8 | 721 | struct net_device *soft_iface; |
c6c8fea2 | 722 | struct net_device_stats stats; |
f8214865 | 723 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
724 | atomic_t aggregated_ogms; |
725 | atomic_t bonding; | |
726 | atomic_t fragmentation; | |
a19d3d85 | 727 | atomic_t packet_size_max; |
ee75ed88 | 728 | atomic_t frag_seqno; |
fa706554 | 729 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 730 | atomic_t bridge_loop_avoidance; |
fa706554 | 731 | #endif |
33af49ad | 732 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 733 | atomic_t distributed_arp_table; |
33af49ad | 734 | #endif |
88a32c9a ML |
735 | atomic_t gw_mode; |
736 | atomic_t gw_sel_class; | |
88a32c9a ML |
737 | atomic_t orig_interval; |
738 | atomic_t hop_penalty; | |
0c430d0d | 739 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 740 | atomic_t log_level; |
0c430d0d | 741 | #endif |
c42edfe3 AQ |
742 | uint32_t isolation_mark; |
743 | uint32_t isolation_mark_mask; | |
c6c8fea2 SE |
744 | atomic_t bcast_seqno; |
745 | atomic_t bcast_queue_left; | |
746 | atomic_t batman_queue_left; | |
747 | char num_ifaces; | |
c6c8fea2 SE |
748 | struct kobject *mesh_obj; |
749 | struct dentry *debug_dir; | |
750 | struct hlist_head forw_bat_list; | |
751 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 752 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 753 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 754 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 755 | struct delayed_work orig_work; |
5bc44dc8 | 756 | struct work_struct cleanup_work; |
56303d34 | 757 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 758 | struct batadv_algo_ops *bat_algo_ops; |
5d2c05b2 AQ |
759 | struct hlist_head softif_vlan_list; |
760 | spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */ | |
807736f6 SE |
761 | #ifdef CONFIG_BATMAN_ADV_BLA |
762 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
763 | #endif |
764 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
765 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
766 | #endif |
767 | struct batadv_priv_gw gw; | |
768 | struct batadv_priv_tt tt; | |
ef261577 | 769 | struct batadv_priv_tvlv tvlv; |
17224474 | 770 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 771 | struct batadv_priv_dat dat; |
17224474 | 772 | #endif |
c5caf4ef LL |
773 | #ifdef CONFIG_BATMAN_ADV_MCAST |
774 | struct batadv_priv_mcast mcast; | |
775 | #endif | |
d353d8d4 MH |
776 | #ifdef CONFIG_BATMAN_ADV_NC |
777 | atomic_t network_coding; | |
778 | struct batadv_priv_nc nc; | |
779 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
780 | }; |
781 | ||
88a32c9a ML |
782 | /** |
783 | * struct batadv_socket_client - layer2 icmp socket client data | |
784 | * @queue_list: packet queue for packets destined for this socket client | |
785 | * @queue_len: number of packets in the packet queue (queue_list) | |
786 | * @index: socket client's index in the batadv_socket_client_hash | |
787 | * @lock: lock protecting queue_list, queue_len & index | |
788 | * @queue_wait: socket client's wait queue | |
789 | * @bat_priv: pointer to soft_iface this client belongs to | |
790 | */ | |
56303d34 | 791 | struct batadv_socket_client { |
c6c8fea2 SE |
792 | struct list_head queue_list; |
793 | unsigned int queue_len; | |
794 | unsigned char index; | |
88a32c9a | 795 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 796 | wait_queue_head_t queue_wait; |
56303d34 | 797 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
798 | }; |
799 | ||
88a32c9a ML |
800 | /** |
801 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
802 | * @list: list node for batadv_socket_client::queue_list | |
803 | * @icmp_len: size of the layer2 icmp packet | |
804 | * @icmp_packet: layer2 icmp packet | |
805 | */ | |
56303d34 | 806 | struct batadv_socket_packet { |
c6c8fea2 SE |
807 | struct list_head list; |
808 | size_t icmp_len; | |
da6b8c20 | 809 | uint8_t icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; |
c6c8fea2 SE |
810 | }; |
811 | ||
88a32c9a ML |
812 | /** |
813 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
814 | * @orig: originator address of backbone node (mac address of primary iface) | |
815 | * @vid: vlan id this gateway was detected on | |
816 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
817 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
818 | * @lasttime: last time we heard of this backbone gw | |
819 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
820 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
821 | * @request_sent: if this bool is set to true we are out of sync with this | |
822 | * backbone gateway - no bcast traffic is formwared until the situation was | |
823 | * resolved | |
824 | * @crc: crc16 checksum over all claims | |
825 | * @refcount: number of contexts the object is used | |
826 | * @rcu: struct used for freeing in an RCU-safe manner | |
827 | */ | |
2006fea8 | 828 | #ifdef CONFIG_BATMAN_ADV_BLA |
bae98774 | 829 | struct batadv_bla_backbone_gw { |
2006fea8 | 830 | uint8_t orig[ETH_ALEN]; |
eb2deb6b | 831 | unsigned short vid; |
2006fea8 ML |
832 | struct hlist_node hash_entry; |
833 | struct batadv_priv *bat_priv; | |
88a32c9a | 834 | unsigned long lasttime; |
2006fea8 ML |
835 | atomic_t wait_periods; |
836 | atomic_t request_sent; | |
88a32c9a | 837 | uint16_t crc; |
2006fea8 ML |
838 | atomic_t refcount; |
839 | struct rcu_head rcu; | |
2006fea8 ML |
840 | }; |
841 | ||
88a32c9a ML |
842 | /** |
843 | * struct batadv_bla_claim - claimed non-mesh client structure | |
844 | * @addr: mac address of claimed non-mesh client | |
845 | * @vid: vlan id this client was detected on | |
846 | * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client | |
847 | * @lasttime: last time we heard of claim (locals only) | |
848 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
849 | * @refcount: number of contexts the object is used | |
850 | * @rcu: struct used for freeing in an RCU-safe manner | |
851 | */ | |
712bbfe4 | 852 | struct batadv_bla_claim { |
2006fea8 | 853 | uint8_t addr[ETH_ALEN]; |
eb2deb6b | 854 | unsigned short vid; |
bae98774 | 855 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
856 | unsigned long lasttime; |
857 | struct hlist_node hash_entry; | |
2006fea8 ML |
858 | struct rcu_head rcu; |
859 | atomic_t refcount; | |
2006fea8 ML |
860 | }; |
861 | #endif | |
862 | ||
88a32c9a ML |
863 | /** |
864 | * struct batadv_tt_common_entry - tt local & tt global common data | |
865 | * @addr: mac address of non-mesh client | |
c018ad3d | 866 | * @vid: VLAN identifier |
88a32c9a ML |
867 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for |
868 | * batadv_priv_tt::global_hash | |
869 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
870 | * @added_at: timestamp used for purging stale tt common entries | |
871 | * @refcount: number of contexts the object is used | |
872 | * @rcu: struct used for freeing in an RCU-safe manner | |
873 | */ | |
56303d34 | 874 | struct batadv_tt_common_entry { |
c6c8fea2 | 875 | uint8_t addr[ETH_ALEN]; |
c018ad3d | 876 | unsigned short vid; |
93840ac4 | 877 | struct hlist_node hash_entry; |
5fbc1598 | 878 | uint16_t flags; |
30cfd02b | 879 | unsigned long added_at; |
7683fdc1 AQ |
880 | atomic_t refcount; |
881 | struct rcu_head rcu; | |
c6c8fea2 SE |
882 | }; |
883 | ||
88a32c9a ML |
884 | /** |
885 | * struct batadv_tt_local_entry - translation table local entry data | |
886 | * @common: general translation table data | |
887 | * @last_seen: timestamp used for purging stale tt local entries | |
888 | */ | |
56303d34 SE |
889 | struct batadv_tt_local_entry { |
890 | struct batadv_tt_common_entry common; | |
48100bac AQ |
891 | unsigned long last_seen; |
892 | }; | |
893 | ||
88a32c9a ML |
894 | /** |
895 | * struct batadv_tt_global_entry - translation table global entry data | |
896 | * @common: general translation table data | |
897 | * @orig_list: list of orig nodes announcing this non-mesh client | |
898 | * @list_lock: lock protecting orig_list | |
899 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
900 | */ | |
56303d34 SE |
901 | struct batadv_tt_global_entry { |
902 | struct batadv_tt_common_entry common; | |
db08e6e5 | 903 | struct hlist_head orig_list; |
88a32c9a ML |
904 | spinlock_t list_lock; /* protects orig_list */ |
905 | unsigned long roam_at; | |
db08e6e5 SW |
906 | }; |
907 | ||
88a32c9a ML |
908 | /** |
909 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
910 | * @orig_node: pointer to orig node announcing this non-mesh client | |
911 | * @ttvn: translation table version number which added the non-mesh client | |
912 | * @list: list node for batadv_tt_global_entry::orig_list | |
913 | * @refcount: number of contexts the object is used | |
914 | * @rcu: struct used for freeing in an RCU-safe manner | |
915 | */ | |
56303d34 SE |
916 | struct batadv_tt_orig_list_entry { |
917 | struct batadv_orig_node *orig_node; | |
a73105b8 | 918 | uint8_t ttvn; |
88a32c9a | 919 | struct hlist_node list; |
d657e621 | 920 | atomic_t refcount; |
db08e6e5 | 921 | struct rcu_head rcu; |
c6c8fea2 SE |
922 | }; |
923 | ||
88a32c9a ML |
924 | /** |
925 | * struct batadv_tt_change_node - structure for tt changes occured | |
926 | * @list: list node for batadv_priv_tt::changes_list | |
927 | * @change: holds the actual translation table diff data | |
928 | */ | |
56303d34 | 929 | struct batadv_tt_change_node { |
a73105b8 | 930 | struct list_head list; |
e1bf0c14 | 931 | struct batadv_tvlv_tt_change change; |
a73105b8 AQ |
932 | }; |
933 | ||
88a32c9a ML |
934 | /** |
935 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
936 | * @addr: mac address address of the originator this request was sent to | |
937 | * @issued_at: timestamp used for purging stale tt requests | |
938 | * @list: list node for batadv_priv_tt::req_list | |
939 | */ | |
56303d34 | 940 | struct batadv_tt_req_node { |
a73105b8 AQ |
941 | uint8_t addr[ETH_ALEN]; |
942 | unsigned long issued_at; | |
943 | struct list_head list; | |
944 | }; | |
945 | ||
88a32c9a ML |
946 | /** |
947 | * struct batadv_tt_roam_node - roaming client data | |
948 | * @addr: mac address of the client in the roaming phase | |
949 | * @counter: number of allowed roaming events per client within a single | |
950 | * OGM interval (changes are committed with each OGM) | |
951 | * @first_time: timestamp used for purging stale roaming node entries | |
952 | * @list: list node for batadv_priv_tt::roam_list | |
953 | */ | |
56303d34 | 954 | struct batadv_tt_roam_node { |
cc47f66e AQ |
955 | uint8_t addr[ETH_ALEN]; |
956 | atomic_t counter; | |
957 | unsigned long first_time; | |
958 | struct list_head list; | |
959 | }; | |
960 | ||
d56b1705 MH |
961 | /** |
962 | * struct batadv_nc_node - network coding node | |
963 | * @list: next and prev pointer for the list handling | |
964 | * @addr: the node's mac address | |
965 | * @refcount: number of contexts the object is used by | |
966 | * @rcu: struct used for freeing in an RCU-safe manner | |
967 | * @orig_node: pointer to corresponding orig node struct | |
968 | * @last_seen: timestamp of last ogm received from this node | |
969 | */ | |
970 | struct batadv_nc_node { | |
971 | struct list_head list; | |
972 | uint8_t addr[ETH_ALEN]; | |
973 | atomic_t refcount; | |
974 | struct rcu_head rcu; | |
975 | struct batadv_orig_node *orig_node; | |
976 | unsigned long last_seen; | |
977 | }; | |
978 | ||
95332477 MH |
979 | /** |
980 | * struct batadv_nc_path - network coding path | |
981 | * @hash_entry: next and prev pointer for the list handling | |
982 | * @rcu: struct used for freeing in an RCU-safe manner | |
983 | * @refcount: number of contexts the object is used by | |
984 | * @packet_list: list of buffered packets for this path | |
985 | * @packet_list_lock: access lock for packet list | |
986 | * @next_hop: next hop (destination) of path | |
987 | * @prev_hop: previous hop (source) of path | |
988 | * @last_valid: timestamp for last validation of path | |
989 | */ | |
990 | struct batadv_nc_path { | |
991 | struct hlist_node hash_entry; | |
992 | struct rcu_head rcu; | |
993 | atomic_t refcount; | |
994 | struct list_head packet_list; | |
995 | spinlock_t packet_list_lock; /* Protects packet_list */ | |
996 | uint8_t next_hop[ETH_ALEN]; | |
997 | uint8_t prev_hop[ETH_ALEN]; | |
998 | unsigned long last_valid; | |
999 | }; | |
1000 | ||
1001 | /** | |
1002 | * struct batadv_nc_packet - network coding packet used when coding and | |
1003 | * decoding packets | |
1004 | * @list: next and prev pointer for the list handling | |
1005 | * @packet_id: crc32 checksum of skb data | |
1006 | * @timestamp: field containing the info when the packet was added to path | |
1007 | * @neigh_node: pointer to original next hop neighbor of skb | |
1008 | * @skb: skb which can be encoded or used for decoding | |
1009 | * @nc_path: pointer to path this nc packet is attached to | |
1010 | */ | |
1011 | struct batadv_nc_packet { | |
1012 | struct list_head list; | |
1013 | __be32 packet_id; | |
1014 | unsigned long timestamp; | |
1015 | struct batadv_neigh_node *neigh_node; | |
1016 | struct sk_buff *skb; | |
1017 | struct batadv_nc_path *nc_path; | |
1018 | }; | |
1019 | ||
3c12de9a | 1020 | /** |
1a321b0d SW |
1021 | * struct batadv_skb_cb - control buffer structure used to store private data |
1022 | * relevant to batman-adv in the skb->cb buffer in skbs. | |
3c12de9a MH |
1023 | * @decoded: Marks a skb as decoded, which is checked when searching for coding |
1024 | * opportunities in network-coding.c | |
1025 | */ | |
1026 | struct batadv_skb_cb { | |
1027 | bool decoded; | |
1028 | }; | |
1029 | ||
88a32c9a ML |
1030 | /** |
1031 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
1032 | * @list: list node for batadv_socket_client::queue_list | |
1033 | * @send_time: execution time for delayed_work (packet sending) | |
1034 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
1035 | * sending) | |
1036 | * @skb: bcast packet's skb buffer | |
1037 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
1038 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
1039 | * @num_packets: counter for bcast packet retransmission | |
1040 | * @delayed_work: work queue callback item for packet sending | |
ef0a937f SW |
1041 | * @if_incoming: pointer to incoming hard-iface or primary iface if |
1042 | * locally generated packet | |
1043 | * @if_outgoing: packet where the packet should be sent to, or NULL if | |
1044 | * unspecified | |
c6c8fea2 | 1045 | */ |
56303d34 | 1046 | struct batadv_forw_packet { |
c6c8fea2 SE |
1047 | struct hlist_node list; |
1048 | unsigned long send_time; | |
1049 | uint8_t own; | |
1050 | struct sk_buff *skb; | |
1051 | uint16_t packet_len; | |
1052 | uint32_t direct_link_flags; | |
1053 | uint8_t num_packets; | |
1054 | struct delayed_work delayed_work; | |
56303d34 | 1055 | struct batadv_hard_iface *if_incoming; |
ef0a937f | 1056 | struct batadv_hard_iface *if_outgoing; |
c6c8fea2 SE |
1057 | }; |
1058 | ||
88a32c9a ML |
1059 | /** |
1060 | * struct batadv_algo_ops - mesh algorithm callbacks | |
1061 | * @list: list node for the batadv_algo_list | |
1062 | * @name: name of the algorithm | |
1063 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
1064 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
1065 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
1066 | * belonging to this hard-interface | |
1067 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
1068 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
1069 | * @bat_ogm_emit: send scheduled OGM | |
89652331 SW |
1070 | * @bat_neigh_cmp: compare the metrics of two neighbors for their respective |
1071 | * outgoing interfaces | |
1072 | * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or better | |
1073 | * than neigh2 for their respective outgoing interface from the metric | |
1074 | * prospective | |
737a2a22 | 1075 | * @bat_orig_print: print the originator table (optional) |
d0015fdd AQ |
1076 | * @bat_orig_free: free the resources allocated by the routing algorithm for an |
1077 | * orig_node object | |
1078 | * @bat_orig_add_if: ask the routing algorithm to apply the needed changes to | |
1079 | * the orig_node due to a new hard-interface being added into the mesh | |
1080 | * @bat_orig_del_if: ask the routing algorithm to apply the needed changes to | |
1081 | * the orig_node due to an hard-interface being removed from the mesh | |
88a32c9a | 1082 | */ |
56303d34 | 1083 | struct batadv_algo_ops { |
1c280471 ML |
1084 | struct hlist_node list; |
1085 | char *name; | |
56303d34 | 1086 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1087 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1088 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1089 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1090 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1091 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
a3285a8f | 1092 | int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1, |
89652331 SW |
1093 | struct batadv_hard_iface *if_outgoing1, |
1094 | struct batadv_neigh_node *neigh2, | |
1095 | struct batadv_hard_iface *if_outgoing2); | |
1096 | bool (*bat_neigh_is_equiv_or_better) | |
1097 | (struct batadv_neigh_node *neigh1, | |
1098 | struct batadv_hard_iface *if_outgoing1, | |
1099 | struct batadv_neigh_node *neigh2, | |
1100 | struct batadv_hard_iface *if_outgoing2); | |
737a2a22 | 1101 | /* orig_node handling API */ |
cb1c92ec SW |
1102 | void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq, |
1103 | struct batadv_hard_iface *hard_iface); | |
d0015fdd AQ |
1104 | void (*bat_orig_free)(struct batadv_orig_node *orig_node); |
1105 | int (*bat_orig_add_if)(struct batadv_orig_node *orig_node, | |
1106 | int max_if_num); | |
1107 | int (*bat_orig_del_if)(struct batadv_orig_node *orig_node, | |
1108 | int max_if_num, int del_if_num); | |
1c280471 ML |
1109 | }; |
1110 | ||
2f1dfbe1 AQ |
1111 | /** |
1112 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
1113 | * is used to stored ARP entries needed for the global DAT cache | |
1114 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
1115 | * @mac_addr: the MAC address associated to the stored IPv4 | |
be1db4f6 | 1116 | * @vid: the vlan ID associated to this entry |
2f1dfbe1 AQ |
1117 | * @last_update: time in jiffies when this entry was refreshed last time |
1118 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
1119 | * @refcount: number of contexts the object is used | |
1120 | * @rcu: struct used for freeing in an RCU-safe manner | |
1121 | */ | |
1122 | struct batadv_dat_entry { | |
1123 | __be32 ip; | |
1124 | uint8_t mac_addr[ETH_ALEN]; | |
be1db4f6 | 1125 | unsigned short vid; |
2f1dfbe1 AQ |
1126 | unsigned long last_update; |
1127 | struct hlist_node hash_entry; | |
1128 | atomic_t refcount; | |
1129 | struct rcu_head rcu; | |
1130 | }; | |
1131 | ||
c5caf4ef LL |
1132 | /** |
1133 | * struct batadv_hw_addr - a list entry for a MAC address | |
1134 | * @list: list node for the linking of entries | |
1135 | * @addr: the MAC address of this list entry | |
1136 | */ | |
1137 | struct batadv_hw_addr { | |
1138 | struct hlist_node list; | |
1139 | unsigned char addr[ETH_ALEN]; | |
1140 | }; | |
1141 | ||
785ea114 AQ |
1142 | /** |
1143 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
1144 | * @type: the type of the selected candidate. It can one of the following: | |
1145 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
1146 | * - BATADV_DAT_CANDIDATE_ORIG | |
1147 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
1148 | * corresponding originator node structure | |
1149 | */ | |
1150 | struct batadv_dat_candidate { | |
1151 | int type; | |
1152 | struct batadv_orig_node *orig_node; | |
1153 | }; | |
1154 | ||
ef261577 ML |
1155 | /** |
1156 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
1157 | * @list: hlist node for batadv_priv_tvlv::container_list | |
1158 | * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
1159 | * @value_len: length of the buffer following this struct which contains | |
1160 | * the actual tvlv payload | |
1161 | * @refcount: number of contexts the object is used | |
1162 | */ | |
1163 | struct batadv_tvlv_container { | |
1164 | struct hlist_node list; | |
1165 | struct batadv_tvlv_hdr tvlv_hdr; | |
1166 | atomic_t refcount; | |
1167 | }; | |
1168 | ||
1169 | /** | |
1170 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
1171 | * @list: hlist node for batadv_priv_tvlv::handler_list | |
1172 | * @ogm_handler: handler callback which is given the tvlv payload to process on | |
1173 | * incoming OGM packets | |
1174 | * @unicast_handler: handler callback which is given the tvlv payload to process | |
1175 | * on incoming unicast tvlv packets | |
1176 | * @type: tvlv type this handler feels responsible for | |
1177 | * @version: tvlv version this handler feels responsible for | |
1178 | * @flags: tvlv handler flags | |
1179 | * @refcount: number of contexts the object is used | |
1180 | * @rcu: struct used for freeing in an RCU-safe manner | |
1181 | */ | |
1182 | struct batadv_tvlv_handler { | |
1183 | struct hlist_node list; | |
1184 | void (*ogm_handler)(struct batadv_priv *bat_priv, | |
1185 | struct batadv_orig_node *orig, | |
1186 | uint8_t flags, | |
1187 | void *tvlv_value, uint16_t tvlv_value_len); | |
1188 | int (*unicast_handler)(struct batadv_priv *bat_priv, | |
1189 | uint8_t *src, uint8_t *dst, | |
1190 | void *tvlv_value, uint16_t tvlv_value_len); | |
1191 | uint8_t type; | |
1192 | uint8_t version; | |
1193 | uint8_t flags; | |
1194 | atomic_t refcount; | |
1195 | struct rcu_head rcu; | |
1196 | }; | |
1197 | ||
1198 | /** | |
1199 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
1200 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
1201 | * this handler even if its type was not found (with no data) | |
1202 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
1203 | * a handler as being called, so it won't be called if the | |
1204 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
1205 | */ | |
1206 | enum batadv_tvlv_handler_flags { | |
1207 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
1208 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
1209 | }; | |
1210 | ||
c6c8fea2 | 1211 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |