1 /* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
3 * Marek Lindner, Simon Wunderlich
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.
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.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 #ifndef _NET_BATMAN_ADV_TYPES_H_
21 #define _NET_BATMAN_ADV_TYPES_H_
25 #include <linux/kernel.h>
28 * Maximum overhead for the encapsulation for a payload packet
30 #define BATADV_HEADER_LEN \
31 (ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \
32 sizeof(struct batadv_bcast_packet)))
34 #ifdef CONFIG_BATMAN_ADV_DAT
36 /* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
37 * BATADV_DAT_ADDR_MAX is changed as well.
39 * *Please be careful: batadv_dat_addr_t must be UNSIGNED*
41 #define batadv_dat_addr_t uint16_t
43 #endif /* CONFIG_BATMAN_ADV_DAT */
46 * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
47 * @ogm_buff: buffer holding the OGM packet
48 * @ogm_buff_len: length of the OGM packet buffer
49 * @ogm_seqno: OGM sequence number - used to identify each OGM
51 struct batadv_hard_iface_bat_iv {
52 unsigned char *ogm_buff;
58 * struct batadv_hard_iface - network device known to batman-adv
59 * @list: list node for batadv_hardif_list
60 * @if_num: identificator of the interface
61 * @if_status: status of the interface for batman-adv
62 * @net_dev: pointer to the net_device
63 * @frag_seqno: last fragment sequence number sent by this interface
64 * @hardif_obj: kobject of the per interface sysfs "mesh" directory
65 * @refcount: number of contexts the object is used
66 * @batman_adv_ptype: packet type describing packets that should be processed by
67 * batman-adv for this interface
68 * @soft_iface: the batman-adv interface which uses this network interface
69 * @rcu: struct used for freeing in an RCU-safe manner
70 * @bat_iv: BATMAN IV specific per hard interface data
71 * @cleanup_work: work queue callback item for hard interface deinit
73 struct batadv_hard_iface {
74 struct list_head list;
77 struct net_device *net_dev;
79 struct kobject *hardif_obj;
81 struct packet_type batman_adv_ptype;
82 struct net_device *soft_iface;
84 struct batadv_hard_iface_bat_iv bat_iv;
85 struct work_struct cleanup_work;
89 * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
90 * @orig: originator ethernet address
91 * @primary_addr: hosts primary interface address
92 * @router: router that should be used to reach this originator
93 * @batadv_dat_addr_t: address of the orig node in the distributed hash
94 * @bcast_own: bitfield containing the number of our OGMs this orig_node
95 * rebroadcasted "back" to us (relative to last_real_seqno)
96 * @bcast_own_sum: counted result of bcast_own
97 * @last_seen: time when last packet from this node was received
98 * @bcast_seqno_reset: time when the broadcast seqno window was reset
99 * @batman_seqno_reset: time when the batman seqno window was reset
100 * @gw_flags: flags related to gateway class
101 * @flags: for now only VIS_SERVER flag
102 * @last_ttvn: last seen translation table version number
103 * @tt_crc: CRC of the translation table
104 * @tt_buff: last tt changeset this node received from the orig node
105 * @tt_buff_len: length of the last tt changeset this node received from the
107 * @tt_buff_lock: lock that protects tt_buff and tt_buff_len
108 * @tt_size: number of global TT entries announced by the orig node
109 * @tt_initialised: bool keeping track of whether or not this node have received
110 * any translation table information from the orig node yet
111 * @last_real_seqno: last and best known sequence number
112 * @last_ttl: ttl of last received packet
113 * @bcast_bits: bitfield containing the info which payload broadcast originated
114 * from this orig node this host already has seen (relative to
116 * @last_bcast_seqno: last broadcast sequence number received by this host
117 * @neigh_list: list of potential next hop neighbor towards this orig node
118 * @frag_list: fragmentation buffer list for fragment re-assembly
119 * @last_frag_packet: time when last fragmented packet from this node was
121 * @neigh_list_lock: lock protecting neigh_list, router and bonding_list
122 * @hash_entry: hlist node for batadv_priv::orig_hash
123 * @bat_priv: pointer to soft_iface this orig node belongs to
124 * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum,
125 * neigh_node->real_bits & neigh_node->real_packet_count
126 * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno
127 * @bond_candidates: how many candidates are available
128 * @bond_list: list of bonding candidates
129 * @refcount: number of contexts the object is used
130 * @rcu: struct used for freeing in an RCU-safe manner
132 struct batadv_orig_node {
133 uint8_t orig[ETH_ALEN];
134 uint8_t primary_addr[ETH_ALEN];
135 struct batadv_neigh_node __rcu *router; /* rcu protected pointer */
136 #ifdef CONFIG_BATMAN_ADV_DAT
137 batadv_dat_addr_t dat_addr;
139 unsigned long *bcast_own;
140 uint8_t *bcast_own_sum;
141 unsigned long last_seen;
142 unsigned long bcast_seqno_reset;
143 unsigned long batman_seqno_reset;
148 unsigned char *tt_buff;
150 spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */
153 uint32_t last_real_seqno;
155 DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
156 uint32_t last_bcast_seqno;
157 struct hlist_head neigh_list;
158 struct list_head frag_list;
159 unsigned long last_frag_packet;
160 /* neigh_list_lock protects: neigh_list, router & bonding_list */
161 spinlock_t neigh_list_lock;
162 struct hlist_node hash_entry;
163 struct batadv_priv *bat_priv;
164 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
165 * neigh_node->real_bits & neigh_node->real_packet_count
167 spinlock_t ogm_cnt_lock;
168 /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */
169 spinlock_t bcast_seqno_lock;
170 atomic_t bond_candidates;
171 struct list_head bond_list;
177 * struct batadv_gw_node - structure for orig nodes announcing gw capabilities
178 * @list: list node for batadv_priv_gw::list
179 * @orig_node: pointer to corresponding orig node
180 * @deleted: this struct is scheduled for deletion
181 * @refcount: number of contexts the object is used
182 * @rcu: struct used for freeing in an RCU-safe manner
184 struct batadv_gw_node {
185 struct hlist_node list;
186 struct batadv_orig_node *orig_node;
187 unsigned long deleted;
193 * struct batadv_neigh_node - structure for single hop neighbors
194 * @list: list node for batadv_orig_node::neigh_list
195 * @addr: mac address of neigh node
196 * @tq_recv: ring buffer of received TQ values from this neigh node
197 * @tq_index: ring buffer index
198 * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv)
199 * @last_ttl: last received ttl from this neigh node
200 * @bonding_list: list node for batadv_orig_node::bond_list
201 * @last_seen: when last packet via this neighbor was received
202 * @real_bits: bitfield containing the number of OGMs received from this neigh
203 * node (relative to orig_node->last_real_seqno)
204 * @real_packet_count: counted result of real_bits
205 * @orig_node: pointer to corresponding orig_node
206 * @if_incoming: pointer to incoming hard interface
207 * @lq_update_lock: lock protecting tq_recv & tq_index
208 * @refcount: number of contexts the object is used
209 * @rcu: struct used for freeing in an RCU-safe manner
211 struct batadv_neigh_node {
212 struct hlist_node list;
213 uint8_t addr[ETH_ALEN];
214 uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
218 struct list_head bonding_list;
219 unsigned long last_seen;
220 DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
221 uint8_t real_packet_count;
222 struct batadv_orig_node *orig_node;
223 struct batadv_hard_iface *if_incoming;
224 spinlock_t lq_update_lock; /* protects tq_recv & tq_index */
230 * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression
231 * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast
232 * @crc: crc32 checksum of broadcast payload
233 * @entrytime: time when the broadcast packet was received
235 #ifdef CONFIG_BATMAN_ADV_BLA
236 struct batadv_bcast_duplist_entry {
237 uint8_t orig[ETH_ALEN];
239 unsigned long entrytime;
244 * enum batadv_counters - indices for traffic counters
245 * @BATADV_CNT_TX: transmitted payload traffic packet counter
246 * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter
247 * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter
248 * @BATADV_CNT_RX: received payload traffic packet counter
249 * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter
250 * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter
251 * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter
252 * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter
253 * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter
254 * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
255 * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter
256 * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter
257 * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter
258 * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter
259 * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter
260 * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter
261 * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter
262 * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
263 * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter
264 * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter
265 * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter
266 * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet
268 * @BATADV_CNT_NUM: number of traffic counters
270 enum batadv_counters {
273 BATADV_CNT_TX_DROPPED,
277 BATADV_CNT_FORWARD_BYTES,
279 BATADV_CNT_MGMT_TX_BYTES,
281 BATADV_CNT_MGMT_RX_BYTES,
282 BATADV_CNT_TT_REQUEST_TX,
283 BATADV_CNT_TT_REQUEST_RX,
284 BATADV_CNT_TT_RESPONSE_TX,
285 BATADV_CNT_TT_RESPONSE_RX,
286 BATADV_CNT_TT_ROAM_ADV_TX,
287 BATADV_CNT_TT_ROAM_ADV_RX,
288 #ifdef CONFIG_BATMAN_ADV_DAT
289 BATADV_CNT_DAT_GET_TX,
290 BATADV_CNT_DAT_GET_RX,
291 BATADV_CNT_DAT_PUT_TX,
292 BATADV_CNT_DAT_PUT_RX,
293 BATADV_CNT_DAT_CACHED_REPLY_TX,
299 * struct batadv_priv_tt - per mesh interface translation table data
300 * @vn: translation table version number
301 * @ogm_append_cnt: counter of number of OGMs containing the local tt diff
302 * @local_changes: changes registered in an originator interval
303 * @changes_list: tracks tt local changes within an originator interval
304 * @local_hash: local translation table hash table
305 * @global_hash: global translation table hash table
306 * @req_list: list of pending & unanswered tt_requests
307 * @roam_list: list of the last roaming events of each client limiting the
308 * number of roaming events to avoid route flapping
309 * @changes_list_lock: lock protecting changes_list
310 * @req_list_lock: lock protecting req_list
311 * @roam_list_lock: lock protecting roam_list
312 * @local_entry_num: number of entries in the local hash table
313 * @local_crc: Checksum of the local table, recomputed before sending a new OGM
314 * @last_changeset: last tt changeset this host has generated
315 * @last_changeset_len: length of last tt changeset this host has generated
316 * @last_changeset_lock: lock protecting last_changeset & last_changeset_len
317 * @work: work queue callback item for translation table purging
319 struct batadv_priv_tt {
321 atomic_t ogm_append_cnt;
322 atomic_t local_changes;
323 struct list_head changes_list;
324 struct batadv_hashtable *local_hash;
325 struct batadv_hashtable *global_hash;
326 struct list_head req_list;
327 struct list_head roam_list;
328 spinlock_t changes_list_lock; /* protects changes */
329 spinlock_t req_list_lock; /* protects req_list */
330 spinlock_t roam_list_lock; /* protects roam_list */
331 atomic_t local_entry_num;
333 unsigned char *last_changeset;
334 int16_t last_changeset_len;
335 /* protects last_changeset & last_changeset_len */
336 spinlock_t last_changeset_lock;
337 struct delayed_work work;
341 * struct batadv_priv_bla - per mesh interface bridge loope avoidance data
342 * @num_requests; number of bla requests in flight
343 * @claim_hash: hash table containing mesh nodes this host has claimed
344 * @backbone_hash: hash table containing all detected backbone gateways
345 * @bcast_duplist: recently received broadcast packets array (for broadcast
346 * duplicate suppression)
347 * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist
348 * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr
349 * @claim_dest: local claim data (e.g. claim group)
350 * @work: work queue callback item for cleanups & bla announcements
352 #ifdef CONFIG_BATMAN_ADV_BLA
353 struct batadv_priv_bla {
354 atomic_t num_requests;
355 struct batadv_hashtable *claim_hash;
356 struct batadv_hashtable *backbone_hash;
357 struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE];
358 int bcast_duplist_curr;
359 /* protects bcast_duplist & bcast_duplist_curr */
360 spinlock_t bcast_duplist_lock;
361 struct batadv_bla_claim_dst claim_dest;
362 struct delayed_work work;
367 * struct batadv_debug_log - debug logging data
368 * @log_buff: buffer holding the logs (ring bufer)
369 * @log_start: index of next character to read
370 * @log_end: index of next character to write
371 * @lock: lock protecting log_buff, log_start & log_end
372 * @queue_wait: log reader's wait queue
374 #ifdef CONFIG_BATMAN_ADV_DEBUG
375 struct batadv_priv_debug_log {
376 char log_buff[BATADV_LOG_BUF_LEN];
377 unsigned long log_start;
378 unsigned long log_end;
379 spinlock_t lock; /* protects log_buff, log_start and log_end */
380 wait_queue_head_t queue_wait;
385 * struct batadv_priv_gw - per mesh interface gateway data
386 * @list: list of available gateway nodes
387 * @list_lock: lock protecting gw_list & curr_gw
388 * @curr_gw: pointer to currently selected gateway node
389 * @reselect: bool indicating a gateway re-selection is in progress
391 struct batadv_priv_gw {
392 struct hlist_head list;
393 spinlock_t list_lock; /* protects gw_list & curr_gw */
394 struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */
399 * struct batadv_priv_vis - per mesh interface vis data
400 * @send_list: list of batadv_vis_info packets to sent
401 * @hash: hash table containing vis data from other nodes in the network
402 * @hash_lock: lock protecting the hash table
403 * @list_lock: lock protecting my_info::recv_list
404 * @work: work queue callback item for vis packet sending
405 * @my_info: holds this node's vis data sent on a regular basis
407 struct batadv_priv_vis {
408 struct list_head send_list;
409 struct batadv_hashtable *hash;
410 spinlock_t hash_lock; /* protects hash */
411 spinlock_t list_lock; /* protects my_info::recv_list */
412 struct delayed_work work;
413 struct batadv_vis_info *my_info;
417 * struct batadv_priv_dat - per mesh interface DAT private data
418 * @addr: node DAT address
419 * @hash: hashtable representing the local ARP cache
420 * @work: work queue callback item for cache purging
422 #ifdef CONFIG_BATMAN_ADV_DAT
423 struct batadv_priv_dat {
424 batadv_dat_addr_t addr;
425 struct batadv_hashtable *hash;
426 struct delayed_work work;
431 * struct batadv_priv - per mesh interface data
432 * @mesh_state: current status of the mesh (inactive/active/deactivating)
433 * @soft_iface: net device which holds this struct as private data
434 * @stats: structure holding the data for the ndo_get_stats() call
435 * @bat_counters: mesh internal traffic statistic counters (see batadv_counters)
436 * @aggregated_ogms: bool indicating whether OGM aggregation is enabled
437 * @bonding: bool indicating whether traffic bonding is enabled
438 * @fragmentation: bool indicating whether traffic fragmentation is enabled
439 * @ap_isolation: bool indicating whether ap isolation is enabled
440 * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is
442 * @distributed_arp_table: bool indicating whether distributed ARP table is
444 * @vis_mode: vis operation: client or server (see batadv_vis_packettype)
445 * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes)
446 * @gw_sel_class: gateway selection class (applies if gw_mode client)
447 * @gw_bandwidth: gateway announced bandwidth (applies if gw_mode server)
448 * @orig_interval: OGM broadcast interval in milliseconds
449 * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop
450 * @log_level: configured log level (see batadv_dbg_level)
451 * @bcast_seqno: last sent broadcast packet sequence number
452 * @bcast_queue_left: number of remaining buffered broadcast packet slots
453 * @batman_queue_left: number of remaining OGM packet slots
454 * @num_ifaces: number of interfaces assigned to this mesh interface
455 * @mesh_obj: kobject for sysfs mesh subdirectory
456 * @debug_dir: dentry for debugfs batman-adv subdirectory
457 * @forw_bat_list: list of aggregated OGMs that will be forwarded
458 * @forw_bcast_list: list of broadcast packets that will be rebroadcasted
459 * @orig_hash: hash table containing mesh participants (orig nodes)
460 * @forw_bat_list_lock: lock protecting forw_bat_list
461 * @forw_bcast_list_lock: lock protecting forw_bcast_list
462 * @orig_work: work queue callback item for orig node purging
463 * @cleanup_work: work queue callback item for soft interface deinit
464 * @primary_if: one of the hard interfaces assigned to this mesh interface
465 * becomes the primary interface
466 * @bat_algo_ops: routing algorithm used by this mesh interface
467 * @bla: bridge loope avoidance data
468 * @debug_log: holding debug logging relevant data
470 * @tt: translation table data
472 * @dat: distributed arp table data
476 struct net_device *soft_iface;
477 struct net_device_stats stats;
478 uint64_t __percpu *bat_counters; /* Per cpu counters */
479 atomic_t aggregated_ogms;
481 atomic_t fragmentation;
482 atomic_t ap_isolation;
483 #ifdef CONFIG_BATMAN_ADV_BLA
484 atomic_t bridge_loop_avoidance;
486 #ifdef CONFIG_BATMAN_ADV_DAT
487 atomic_t distributed_arp_table;
491 atomic_t gw_sel_class;
492 atomic_t gw_bandwidth;
493 atomic_t orig_interval;
494 atomic_t hop_penalty;
495 #ifdef CONFIG_BATMAN_ADV_DEBUG
498 atomic_t bcast_seqno;
499 atomic_t bcast_queue_left;
500 atomic_t batman_queue_left;
502 struct kobject *mesh_obj;
503 struct dentry *debug_dir;
504 struct hlist_head forw_bat_list;
505 struct hlist_head forw_bcast_list;
506 struct batadv_hashtable *orig_hash;
507 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
508 spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */
509 struct delayed_work orig_work;
510 struct work_struct cleanup_work;
511 struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */
512 struct batadv_algo_ops *bat_algo_ops;
513 #ifdef CONFIG_BATMAN_ADV_BLA
514 struct batadv_priv_bla bla;
516 #ifdef CONFIG_BATMAN_ADV_DEBUG
517 struct batadv_priv_debug_log *debug_log;
519 struct batadv_priv_gw gw;
520 struct batadv_priv_tt tt;
521 struct batadv_priv_vis vis;
522 #ifdef CONFIG_BATMAN_ADV_DAT
523 struct batadv_priv_dat dat;
528 * struct batadv_socket_client - layer2 icmp socket client data
529 * @queue_list: packet queue for packets destined for this socket client
530 * @queue_len: number of packets in the packet queue (queue_list)
531 * @index: socket client's index in the batadv_socket_client_hash
532 * @lock: lock protecting queue_list, queue_len & index
533 * @queue_wait: socket client's wait queue
534 * @bat_priv: pointer to soft_iface this client belongs to
536 struct batadv_socket_client {
537 struct list_head queue_list;
538 unsigned int queue_len;
540 spinlock_t lock; /* protects queue_list, queue_len & index */
541 wait_queue_head_t queue_wait;
542 struct batadv_priv *bat_priv;
546 * struct batadv_socket_packet - layer2 icmp packet for socket client
547 * @list: list node for batadv_socket_client::queue_list
548 * @icmp_len: size of the layer2 icmp packet
549 * @icmp_packet: layer2 icmp packet
551 struct batadv_socket_packet {
552 struct list_head list;
554 struct batadv_icmp_packet_rr icmp_packet;
558 * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN
559 * @orig: originator address of backbone node (mac address of primary iface)
560 * @vid: vlan id this gateway was detected on
561 * @hash_entry: hlist node for batadv_priv_bla::backbone_hash
562 * @bat_priv: pointer to soft_iface this backbone gateway belongs to
563 * @lasttime: last time we heard of this backbone gw
564 * @wait_periods: grace time for bridge forward delays and bla group forming at
565 * bootup phase - no bcast traffic is formwared until it has elapsed
566 * @request_sent: if this bool is set to true we are out of sync with this
567 * backbone gateway - no bcast traffic is formwared until the situation was
569 * @crc: crc16 checksum over all claims
570 * @refcount: number of contexts the object is used
571 * @rcu: struct used for freeing in an RCU-safe manner
573 #ifdef CONFIG_BATMAN_ADV_BLA
574 struct batadv_bla_backbone_gw {
575 uint8_t orig[ETH_ALEN];
577 struct hlist_node hash_entry;
578 struct batadv_priv *bat_priv;
579 unsigned long lasttime;
580 atomic_t wait_periods;
581 atomic_t request_sent;
588 * struct batadv_bla_claim - claimed non-mesh client structure
589 * @addr: mac address of claimed non-mesh client
590 * @vid: vlan id this client was detected on
591 * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client
592 * @lasttime: last time we heard of claim (locals only)
593 * @hash_entry: hlist node for batadv_priv_bla::claim_hash
594 * @refcount: number of contexts the object is used
595 * @rcu: struct used for freeing in an RCU-safe manner
597 struct batadv_bla_claim {
598 uint8_t addr[ETH_ALEN];
600 struct batadv_bla_backbone_gw *backbone_gw;
601 unsigned long lasttime;
602 struct hlist_node hash_entry;
609 * struct batadv_tt_common_entry - tt local & tt global common data
610 * @addr: mac address of non-mesh client
611 * @hash_entry: hlist node for batadv_priv_tt::local_hash or for
612 * batadv_priv_tt::global_hash
613 * @flags: various state handling flags (see batadv_tt_client_flags)
614 * @added_at: timestamp used for purging stale tt common entries
615 * @refcount: number of contexts the object is used
616 * @rcu: struct used for freeing in an RCU-safe manner
618 struct batadv_tt_common_entry {
619 uint8_t addr[ETH_ALEN];
620 struct hlist_node hash_entry;
622 unsigned long added_at;
628 * struct batadv_tt_local_entry - translation table local entry data
629 * @common: general translation table data
630 * @last_seen: timestamp used for purging stale tt local entries
632 struct batadv_tt_local_entry {
633 struct batadv_tt_common_entry common;
634 unsigned long last_seen;
638 * struct batadv_tt_global_entry - translation table global entry data
639 * @common: general translation table data
640 * @orig_list: list of orig nodes announcing this non-mesh client
641 * @list_lock: lock protecting orig_list
642 * @roam_at: time at which TT_GLOBAL_ROAM was set
644 struct batadv_tt_global_entry {
645 struct batadv_tt_common_entry common;
646 struct hlist_head orig_list;
647 spinlock_t list_lock; /* protects orig_list */
648 unsigned long roam_at;
652 * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client
653 * @orig_node: pointer to orig node announcing this non-mesh client
654 * @ttvn: translation table version number which added the non-mesh client
655 * @list: list node for batadv_tt_global_entry::orig_list
656 * @refcount: number of contexts the object is used
657 * @rcu: struct used for freeing in an RCU-safe manner
659 struct batadv_tt_orig_list_entry {
660 struct batadv_orig_node *orig_node;
662 struct hlist_node list;
668 * struct batadv_tt_change_node - structure for tt changes occured
669 * @list: list node for batadv_priv_tt::changes_list
670 * @change: holds the actual translation table diff data
672 struct batadv_tt_change_node {
673 struct list_head list;
674 struct batadv_tt_change change;
678 * struct batadv_tt_req_node - data to keep track of the tt requests in flight
679 * @addr: mac address address of the originator this request was sent to
680 * @issued_at: timestamp used for purging stale tt requests
681 * @list: list node for batadv_priv_tt::req_list
683 struct batadv_tt_req_node {
684 uint8_t addr[ETH_ALEN];
685 unsigned long issued_at;
686 struct list_head list;
690 * struct batadv_tt_roam_node - roaming client data
691 * @addr: mac address of the client in the roaming phase
692 * @counter: number of allowed roaming events per client within a single
693 * OGM interval (changes are committed with each OGM)
694 * @first_time: timestamp used for purging stale roaming node entries
695 * @list: list node for batadv_priv_tt::roam_list
697 struct batadv_tt_roam_node {
698 uint8_t addr[ETH_ALEN];
700 unsigned long first_time;
701 struct list_head list;
705 * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded
706 * @list: list node for batadv_socket_client::queue_list
707 * @send_time: execution time for delayed_work (packet sending)
708 * @own: bool for locally generated packets (local OGMs are re-scheduled after
710 * @skb: bcast packet's skb buffer
711 * @packet_len: size of aggregated OGM packet inside the skb buffer
712 * @direct_link_flags: direct link flags for aggregated OGM packets
713 * @num_packets: counter for bcast packet retransmission
714 * @delayed_work: work queue callback item for packet sending
715 * @if_incoming: pointer incoming hard-iface or primary iface if locally
718 struct batadv_forw_packet {
719 struct hlist_node list;
720 unsigned long send_time;
724 uint32_t direct_link_flags;
726 struct delayed_work delayed_work;
727 struct batadv_hard_iface *if_incoming;
731 * struct batadv_frag_packet_list_entry - storage for fragment packet
732 * @list: list node for orig_node::frag_list
733 * @seqno: sequence number of the fragment
734 * @skb: fragment's skb buffer
736 struct batadv_frag_packet_list_entry {
737 struct list_head list;
743 * struct batadv_vis_info - local data for vis information
744 * @first_seen: timestamp used for purging stale vis info entries
745 * @recv_list: List of server-neighbors we have received this packet from. This
746 * packet should not be re-forward to them again. List elements are struct
747 * batadv_vis_recvlist_node
748 * @send_list: list of packets to be forwarded
749 * @refcount: number of contexts the object is used
750 * @hash_entry: hlist node for batadv_priv_vis::hash
751 * @bat_priv: pointer to soft_iface this orig node belongs to
752 * @skb_packet: contains the vis packet
754 struct batadv_vis_info {
755 unsigned long first_seen;
756 struct list_head recv_list;
757 struct list_head send_list;
758 struct kref refcount;
759 struct hlist_node hash_entry;
760 struct batadv_priv *bat_priv;
761 struct sk_buff *skb_packet;
765 * struct batadv_vis_info_entry - contains link information for vis
766 * @src: source MAC of the link, all zero for local TT entry
767 * @dst: destination MAC of the link, client mac address for local TT entry
768 * @quality: transmission quality of the link, or 0 for local TT entry
770 struct batadv_vis_info_entry {
771 uint8_t src[ETH_ALEN];
772 uint8_t dest[ETH_ALEN];
777 * struct batadv_vis_recvlist_node - list entry for batadv_vis_info::recv_list
778 * @list: list node for batadv_vis_info::recv_list
779 * @mac: MAC address of the originator from where the vis_info was received
781 struct batadv_vis_recvlist_node {
782 struct list_head list;
783 uint8_t mac[ETH_ALEN];
787 * struct batadv_vis_if_list_entry - auxiliary data for vis data generation
788 * @addr: MAC address of the interface
789 * @primary: true if this interface is the primary interface
790 * @list: list node the interface list
792 * While scanning for vis-entries of a particular vis-originator
793 * this list collects its interfaces to create a subgraph/cluster
796 struct batadv_vis_if_list_entry {
797 uint8_t addr[ETH_ALEN];
799 struct hlist_node list;
803 * struct batadv_algo_ops - mesh algorithm callbacks
804 * @list: list node for the batadv_algo_list
805 * @name: name of the algorithm
806 * @bat_iface_enable: init routing info when hard-interface is enabled
807 * @bat_iface_disable: de-init routing info when hard-interface is disabled
808 * @bat_iface_update_mac: (re-)init mac addresses of the protocol information
809 * belonging to this hard-interface
810 * @bat_primary_iface_set: called when primary interface is selected / changed
811 * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
812 * @bat_ogm_emit: send scheduled OGM
814 struct batadv_algo_ops {
815 struct hlist_node list;
817 int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface);
818 void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface);
819 void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface);
820 void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface);
821 void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface);
822 void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
826 * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It
827 * is used to stored ARP entries needed for the global DAT cache
828 * @ip: the IPv4 corresponding to this DAT/ARP entry
829 * @mac_addr: the MAC address associated to the stored IPv4
830 * @last_update: time in jiffies when this entry was refreshed last time
831 * @hash_entry: hlist node for batadv_priv_dat::hash
832 * @refcount: number of contexts the object is used
833 * @rcu: struct used for freeing in an RCU-safe manner
835 struct batadv_dat_entry {
837 uint8_t mac_addr[ETH_ALEN];
838 unsigned long last_update;
839 struct hlist_node hash_entry;
845 * struct batadv_dat_candidate - candidate destination for DAT operations
846 * @type: the type of the selected candidate. It can one of the following:
847 * - BATADV_DAT_CANDIDATE_NOT_FOUND
848 * - BATADV_DAT_CANDIDATE_ORIG
849 * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the
850 * corresponding originator node structure
852 struct batadv_dat_candidate {
854 struct batadv_orig_node *orig_node;
857 #endif /* _NET_BATMAN_ADV_TYPES_H_ */