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9f6446c7 | 1 | /* Copyright (C) 2007-2015 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 | ||
1e2c2a4f SE |
21 | #ifndef _NET_BATMAN_ADV_MAIN_H_ |
22 | #error only "main.h" can be included directly | |
23 | #endif | |
24 | ||
25 | #include <linux/bitops.h> | |
26 | #include <linux/compiler.h> | |
27 | #include <linux/if_ether.h> | |
28 | #include <linux/netdevice.h> | |
29 | #include <linux/sched.h> /* for linux/wait.h */ | |
30 | #include <linux/spinlock.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/wait.h> | |
33 | #include <linux/workqueue.h> | |
34 | ||
c6c8fea2 | 35 | #include "packet.h" |
1e2c2a4f SE |
36 | |
37 | struct seq_file; | |
c6c8fea2 | 38 | |
17224474 AQ |
39 | #ifdef CONFIG_BATMAN_ADV_DAT |
40 | ||
151dcb3c AQ |
41 | /** |
42 | * batadv_dat_addr_t - it is the type used for all DHT addresses. If it is | |
43 | * changed, BATADV_DAT_ADDR_MAX is changed as well. | |
785ea114 AQ |
44 | * |
45 | * *Please be careful: batadv_dat_addr_t must be UNSIGNED* | |
46 | */ | |
6b5e971a | 47 | #define batadv_dat_addr_t u16 |
785ea114 | 48 | |
17224474 AQ |
49 | #endif /* CONFIG_BATMAN_ADV_DAT */ |
50 | ||
6c413b1c AQ |
51 | /** |
52 | * enum batadv_dhcp_recipient - dhcp destination | |
53 | * @BATADV_DHCP_NO: packet is not a dhcp message | |
54 | * @BATADV_DHCP_TO_SERVER: dhcp message is directed to a server | |
55 | * @BATADV_DHCP_TO_CLIENT: dhcp message is directed to a client | |
56 | */ | |
57 | enum batadv_dhcp_recipient { | |
58 | BATADV_DHCP_NO = 0, | |
59 | BATADV_DHCP_TO_SERVER, | |
60 | BATADV_DHCP_TO_CLIENT, | |
61 | }; | |
62 | ||
3c4f7ab6 AQ |
63 | /** |
64 | * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the | |
65 | * wire only | |
66 | */ | |
67 | #define BATADV_TT_REMOTE_MASK 0x00FF | |
68 | ||
0eb01568 AQ |
69 | /** |
70 | * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync | |
71 | * among the nodes. These flags are used to compute the global/local CRC | |
72 | */ | |
73 | #define BATADV_TT_SYNC_MASK 0x00F0 | |
74 | ||
14511519 ML |
75 | /** |
76 | * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data | |
77 | * @ogm_buff: buffer holding the OGM packet | |
78 | * @ogm_buff_len: length of the OGM packet buffer | |
79 | * @ogm_seqno: OGM sequence number - used to identify each OGM | |
80 | */ | |
81 | struct batadv_hard_iface_bat_iv { | |
82 | unsigned char *ogm_buff; | |
83 | int ogm_buff_len; | |
84 | atomic_t ogm_seqno; | |
85 | }; | |
86 | ||
88a32c9a ML |
87 | /** |
88 | * struct batadv_hard_iface - network device known to batman-adv | |
89 | * @list: list node for batadv_hardif_list | |
90 | * @if_num: identificator of the interface | |
91 | * @if_status: status of the interface for batman-adv | |
92 | * @net_dev: pointer to the net_device | |
caf65bfc | 93 | * @num_bcasts: number of payload re-broadcasts on this interface (ARQ) |
88a32c9a ML |
94 | * @hardif_obj: kobject of the per interface sysfs "mesh" directory |
95 | * @refcount: number of contexts the object is used | |
96 | * @batman_adv_ptype: packet type describing packets that should be processed by | |
97 | * batman-adv for this interface | |
98 | * @soft_iface: the batman-adv interface which uses this network interface | |
99 | * @rcu: struct used for freeing in an RCU-safe manner | |
100 | * @bat_iv: BATMAN IV specific per hard interface data | |
5bc44dc8 | 101 | * @cleanup_work: work queue callback item for hard interface deinit |
5bc7c1eb | 102 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
cef63419 ML |
103 | * @neigh_list: list of unique single hop neighbors via this interface |
104 | * @neigh_list_lock: lock protecting neigh_list | |
88a32c9a | 105 | */ |
56303d34 | 106 | struct batadv_hard_iface { |
c6c8fea2 | 107 | struct list_head list; |
6b5e971a | 108 | s16 if_num; |
c6c8fea2 SE |
109 | char if_status; |
110 | struct net_device *net_dev; | |
6b5e971a | 111 | u8 num_bcasts; |
c6c8fea2 | 112 | struct kobject *hardif_obj; |
ed75ccbe | 113 | atomic_t refcount; |
c6c8fea2 SE |
114 | struct packet_type batman_adv_ptype; |
115 | struct net_device *soft_iface; | |
116 | struct rcu_head rcu; | |
14511519 | 117 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 118 | struct work_struct cleanup_work; |
5bc7c1eb | 119 | struct dentry *debug_dir; |
cef63419 ML |
120 | struct hlist_head neigh_list; |
121 | /* neigh_list_lock protects: neigh_list */ | |
122 | spinlock_t neigh_list_lock; | |
c6c8fea2 SE |
123 | }; |
124 | ||
7351a482 SW |
125 | /** |
126 | * struct batadv_orig_ifinfo - originator info per outgoing interface | |
127 | * @list: list node for orig_node::ifinfo_list | |
128 | * @if_outgoing: pointer to outgoing hard interface | |
129 | * @router: router that should be used to reach this originator | |
130 | * @last_real_seqno: last and best known sequence number | |
131 | * @last_ttl: ttl of last received packet | |
132 | * @batman_seqno_reset: time when the batman seqno window was reset | |
133 | * @refcount: number of contexts the object is used | |
134 | * @rcu: struct used for freeing in an RCU-safe manner | |
135 | */ | |
136 | struct batadv_orig_ifinfo { | |
137 | struct hlist_node list; | |
138 | struct batadv_hard_iface *if_outgoing; | |
139 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ | |
6b5e971a SE |
140 | u32 last_real_seqno; |
141 | u8 last_ttl; | |
7351a482 SW |
142 | unsigned long batman_seqno_reset; |
143 | atomic_t refcount; | |
144 | struct rcu_head rcu; | |
145 | }; | |
146 | ||
610bfc6b MH |
147 | /** |
148 | * struct batadv_frag_table_entry - head in the fragment buffer table | |
149 | * @head: head of list with fragments | |
150 | * @lock: lock to protect the list of fragments | |
151 | * @timestamp: time (jiffie) of last received fragment | |
152 | * @seqno: sequence number of the fragments in the list | |
153 | * @size: accumulated size of packets in list | |
53e77145 | 154 | * @total_size: expected size of the assembled packet |
610bfc6b MH |
155 | */ |
156 | struct batadv_frag_table_entry { | |
157 | struct hlist_head head; | |
158 | spinlock_t lock; /* protects head */ | |
159 | unsigned long timestamp; | |
6b5e971a SE |
160 | u16 seqno; |
161 | u16 size; | |
162 | u16 total_size; | |
610bfc6b MH |
163 | }; |
164 | ||
165 | /** | |
166 | * struct batadv_frag_list_entry - entry in a list of fragments | |
167 | * @list: list node information | |
168 | * @skb: fragment | |
169 | * @no: fragment number in the set | |
170 | */ | |
171 | struct batadv_frag_list_entry { | |
172 | struct hlist_node list; | |
173 | struct sk_buff *skb; | |
6b5e971a | 174 | u8 no; |
610bfc6b MH |
175 | }; |
176 | ||
7ea7b4a1 AQ |
177 | /** |
178 | * struct batadv_vlan_tt - VLAN specific TT attributes | |
179 | * @crc: CRC32 checksum of the entries belonging to this vlan | |
180 | * @num_entries: number of TT entries for this VLAN | |
181 | */ | |
182 | struct batadv_vlan_tt { | |
6b5e971a | 183 | u32 crc; |
7ea7b4a1 AQ |
184 | atomic_t num_entries; |
185 | }; | |
186 | ||
187 | /** | |
1a321b0d | 188 | * struct batadv_orig_node_vlan - VLAN specific data per orig_node |
7ea7b4a1 AQ |
189 | * @vid: the VLAN identifier |
190 | * @tt: VLAN specific TT attributes | |
191 | * @list: list node for orig_node::vlan_list | |
192 | * @refcount: number of context where this object is currently in use | |
193 | * @rcu: struct used for freeing in a RCU-safe manner | |
194 | */ | |
195 | struct batadv_orig_node_vlan { | |
196 | unsigned short vid; | |
197 | struct batadv_vlan_tt tt; | |
d0fa4f3f | 198 | struct hlist_node list; |
7ea7b4a1 AQ |
199 | atomic_t refcount; |
200 | struct rcu_head rcu; | |
201 | }; | |
202 | ||
bbad0a5e AQ |
203 | /** |
204 | * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members | |
21102626 MP |
205 | * @bcast_own: set of bitfields (one per hard interface) where each one counts |
206 | * the number of our OGMs this orig_node rebroadcasted "back" to us (relative | |
207 | * to last_real_seqno). Every bitfield is BATADV_TQ_LOCAL_WINDOW_SIZE bits long. | |
208 | * @bcast_own_sum: sum of bcast_own | |
bbad0a5e AQ |
209 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, |
210 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
211 | */ | |
212 | struct batadv_orig_bat_iv { | |
213 | unsigned long *bcast_own; | |
6b5e971a | 214 | u8 *bcast_own_sum; |
bbad0a5e AQ |
215 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, |
216 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
217 | */ | |
218 | spinlock_t ogm_cnt_lock; | |
219 | }; | |
220 | ||
2c53040f | 221 | /** |
b6d0ab7c | 222 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 223 | * @orig: originator ethernet address |
7351a482 | 224 | * @ifinfo_list: list for routers per outgoing interface |
f3b3d901 | 225 | * @last_bonding_candidate: pointer to last ifinfo of last used router |
006a199d | 226 | * @dat_addr: address of the orig node in the distributed hash |
88a32c9a | 227 | * @last_seen: time when last packet from this node was received |
b6d0ab7c | 228 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
8a4023c5 | 229 | * @mcast_handler_lock: synchronizes mcast-capability and -flag changes |
60432d75 | 230 | * @mcast_flags: multicast flags announced by the orig node |
006a199d | 231 | * @mcast_want_all_unsnoopables_node: a list node for the |
ab49886e | 232 | * mcast.want_all_unsnoopables list |
4c8755d6 LL |
233 | * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4 list |
234 | * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6 list | |
17cf0ea4 | 235 | * @capabilities: announced capabilities of this originator |
e17931d1 | 236 | * @capa_initialized: bitfield to remember whether a capability was initialized |
88a32c9a | 237 | * @last_ttvn: last seen translation table version number |
88a32c9a ML |
238 | * @tt_buff: last tt changeset this node received from the orig node |
239 | * @tt_buff_len: length of the last tt changeset this node received from the | |
240 | * orig node | |
241 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
a70a9aa9 AQ |
242 | * @tt_lock: prevents from updating the table while reading it. Table update is |
243 | * made up by two operations (data structure update and metdata -CRC/TTVN- | |
244 | * recalculation) and they have to be executed atomically in order to avoid | |
245 | * another thread to read the table/metadata between those. | |
88a32c9a ML |
246 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
247 | * from this orig node this host already has seen (relative to | |
248 | * last_bcast_seqno) | |
b6d0ab7c | 249 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a | 250 | * @neigh_list: list of potential next hop neighbor towards this orig node |
f6c8b711 | 251 | * @neigh_list_lock: lock protecting neigh_list and router |
88a32c9a ML |
252 | * @hash_entry: hlist node for batadv_priv::orig_hash |
253 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
88a32c9a | 254 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno |
88a32c9a ML |
255 | * @refcount: number of contexts the object is used |
256 | * @rcu: struct used for freeing in an RCU-safe manner | |
d56b1705 MH |
257 | * @in_coding_list: list of nodes this orig can hear |
258 | * @out_coding_list: list of nodes that can hear this orig | |
259 | * @in_coding_list_lock: protects in_coding_list | |
260 | * @out_coding_list_lock: protects out_coding_list | |
610bfc6b | 261 | * @fragments: array with heads for fragment chains |
7ea7b4a1 AQ |
262 | * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the |
263 | * originator represented by this object | |
264 | * @vlan_list_lock: lock protecting vlan_list | |
bbad0a5e | 265 | * @bat_iv: B.A.T.M.A.N. IV private structure |
c6c8fea2 | 266 | */ |
56303d34 | 267 | struct batadv_orig_node { |
6b5e971a | 268 | u8 orig[ETH_ALEN]; |
7351a482 | 269 | struct hlist_head ifinfo_list; |
f3b3d901 | 270 | struct batadv_orig_ifinfo *last_bonding_candidate; |
17224474 | 271 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 272 | batadv_dat_addr_t dat_addr; |
17224474 | 273 | #endif |
d7b2a97e | 274 | unsigned long last_seen; |
c6c8fea2 | 275 | unsigned long bcast_seqno_reset; |
60432d75 | 276 | #ifdef CONFIG_BATMAN_ADV_MCAST |
8a4023c5 LL |
277 | /* synchronizes mcast tvlv specific orig changes */ |
278 | spinlock_t mcast_handler_lock; | |
6b5e971a | 279 | u8 mcast_flags; |
ab49886e | 280 | struct hlist_node mcast_want_all_unsnoopables_node; |
4c8755d6 LL |
281 | struct hlist_node mcast_want_all_ipv4_node; |
282 | struct hlist_node mcast_want_all_ipv6_node; | |
60432d75 | 283 | #endif |
65d7d460 | 284 | unsigned long capabilities; |
ac4eebd4 | 285 | unsigned long capa_initialized; |
88a32c9a | 286 | atomic_t last_ttvn; |
2dafb49d | 287 | unsigned char *tt_buff; |
6b5e971a | 288 | s16 tt_buff_len; |
88a32c9a | 289 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
a70a9aa9 AQ |
290 | /* prevents from changing the table while reading it */ |
291 | spinlock_t tt_lock; | |
42d0b044 | 292 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
6b5e971a | 293 | u32 last_bcast_seqno; |
9591a79f | 294 | struct hlist_head neigh_list; |
f6c8b711 | 295 | /* neigh_list_lock protects: neigh_list and router */ |
88a32c9a | 296 | spinlock_t neigh_list_lock; |
7aadf889 | 297 | struct hlist_node hash_entry; |
56303d34 | 298 | struct batadv_priv *bat_priv; |
88a32c9a | 299 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 300 | spinlock_t bcast_seqno_lock; |
88a32c9a ML |
301 | atomic_t refcount; |
302 | struct rcu_head rcu; | |
d56b1705 MH |
303 | #ifdef CONFIG_BATMAN_ADV_NC |
304 | struct list_head in_coding_list; | |
305 | struct list_head out_coding_list; | |
306 | spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
307 | spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
308 | #endif | |
610bfc6b | 309 | struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; |
d0fa4f3f | 310 | struct hlist_head vlan_list; |
7ea7b4a1 | 311 | spinlock_t vlan_list_lock; /* protects vlan_list */ |
bbad0a5e | 312 | struct batadv_orig_bat_iv bat_iv; |
c6c8fea2 SE |
313 | }; |
314 | ||
17cf0ea4 ML |
315 | /** |
316 | * enum batadv_orig_capabilities - orig node capabilities | |
317 | * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled | |
3f4841ff | 318 | * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled |
e17931d1 | 319 | * @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability |
60432d75 LL |
320 | * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability |
321 | * (= orig node announces a tvlv of type BATADV_TVLV_MCAST) | |
17cf0ea4 ML |
322 | */ |
323 | enum batadv_orig_capabilities { | |
65d7d460 | 324 | BATADV_ORIG_CAPA_HAS_DAT, |
4635469f | 325 | BATADV_ORIG_CAPA_HAS_NC, |
ac4eebd4 | 326 | BATADV_ORIG_CAPA_HAS_TT, |
9c936e3f | 327 | BATADV_ORIG_CAPA_HAS_MCAST, |
17cf0ea4 ML |
328 | }; |
329 | ||
88a32c9a ML |
330 | /** |
331 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
332 | * @list: list node for batadv_priv_gw::list | |
333 | * @orig_node: pointer to corresponding orig node | |
414254e3 ML |
334 | * @bandwidth_down: advertised uplink download bandwidth |
335 | * @bandwidth_up: advertised uplink upload bandwidth | |
88a32c9a ML |
336 | * @refcount: number of contexts the object is used |
337 | * @rcu: struct used for freeing in an RCU-safe manner | |
338 | */ | |
56303d34 | 339 | struct batadv_gw_node { |
c6c8fea2 | 340 | struct hlist_node list; |
56303d34 | 341 | struct batadv_orig_node *orig_node; |
6b5e971a SE |
342 | u32 bandwidth_down; |
343 | u32 bandwidth_up; | |
25b6d3c1 | 344 | atomic_t refcount; |
c6c8fea2 SE |
345 | struct rcu_head rcu; |
346 | }; | |
347 | ||
cef63419 ML |
348 | /** |
349 | * batadv_hardif_neigh_node - unique neighbor per hard interface | |
350 | * @list: list node for batadv_hard_iface::neigh_list | |
351 | * @addr: the MAC address of the neighboring interface | |
352 | * @if_incoming: pointer to incoming hard interface | |
353 | * @refcount: number of contexts the object is used | |
354 | * @rcu: struct used for freeing in a RCU-safe manner | |
355 | */ | |
356 | struct batadv_hardif_neigh_node { | |
357 | struct hlist_node list; | |
358 | u8 addr[ETH_ALEN]; | |
359 | struct batadv_hard_iface *if_incoming; | |
360 | unsigned long last_seen; | |
361 | atomic_t refcount; | |
362 | struct rcu_head rcu; | |
363 | }; | |
364 | ||
88a32c9a | 365 | /** |
89652331 SW |
366 | * struct batadv_neigh_node - structure for single hops neighbors |
367 | * @list: list node for batadv_orig_node::neigh_list | |
368 | * @orig_node: pointer to corresponding orig_node | |
369 | * @addr: the MAC address of the neighboring interface | |
370 | * @ifinfo_list: list for routing metrics per outgoing interface | |
371 | * @ifinfo_lock: lock protecting private ifinfo members and list | |
372 | * @if_incoming: pointer to incoming hard interface | |
373 | * @last_seen: when last packet via this neighbor was received | |
89652331 | 374 | * @rcu: struct used for freeing in an RCU-safe manner |
89652331 SW |
375 | */ |
376 | struct batadv_neigh_node { | |
377 | struct hlist_node list; | |
378 | struct batadv_orig_node *orig_node; | |
6b5e971a | 379 | u8 addr[ETH_ALEN]; |
89652331 SW |
380 | struct hlist_head ifinfo_list; |
381 | spinlock_t ifinfo_lock; /* protects ifinfo_list and its members */ | |
382 | struct batadv_hard_iface *if_incoming; | |
383 | unsigned long last_seen; | |
384 | atomic_t refcount; | |
385 | struct rcu_head rcu; | |
386 | }; | |
387 | ||
1b371d13 | 388 | /** |
1a321b0d | 389 | * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing |
89652331 | 390 | * interface for BATMAN IV |
88a32c9a ML |
391 | * @tq_recv: ring buffer of received TQ values from this neigh node |
392 | * @tq_index: ring buffer index | |
393 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
88a32c9a ML |
394 | * @real_bits: bitfield containing the number of OGMs received from this neigh |
395 | * node (relative to orig_node->last_real_seqno) | |
396 | * @real_packet_count: counted result of real_bits | |
0538f759 | 397 | */ |
89652331 | 398 | struct batadv_neigh_ifinfo_bat_iv { |
6b5e971a SE |
399 | u8 tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
400 | u8 tq_index; | |
401 | u8 tq_avg; | |
0538f759 | 402 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
6b5e971a | 403 | u8 real_packet_count; |
0538f759 AQ |
404 | }; |
405 | ||
1b371d13 SW |
406 | /** |
407 | * struct batadv_neigh_ifinfo - neighbor information per outgoing interface | |
89652331 SW |
408 | * @list: list node for batadv_neigh_node::ifinfo_list |
409 | * @if_outgoing: pointer to outgoing hard interface | |
410 | * @bat_iv: B.A.T.M.A.N. IV private structure | |
0538f759 | 411 | * @last_ttl: last received ttl from this neigh node |
88a32c9a | 412 | * @refcount: number of contexts the object is used |
89652331 | 413 | * @rcu: struct used for freeing in a RCU-safe manner |
c6c8fea2 | 414 | */ |
89652331 | 415 | struct batadv_neigh_ifinfo { |
9591a79f | 416 | struct hlist_node list; |
89652331 SW |
417 | struct batadv_hard_iface *if_outgoing; |
418 | struct batadv_neigh_ifinfo_bat_iv bat_iv; | |
6b5e971a | 419 | u8 last_ttl; |
88a32c9a ML |
420 | atomic_t refcount; |
421 | struct rcu_head rcu; | |
c6c8fea2 SE |
422 | }; |
423 | ||
426fc6c8 SE |
424 | #ifdef CONFIG_BATMAN_ADV_BLA |
425 | ||
88a32c9a ML |
426 | /** |
427 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
006a199d | 428 | * @orig: mac address of orig node orginating the broadcast |
88a32c9a ML |
429 | * @crc: crc32 checksum of broadcast payload |
430 | * @entrytime: time when the broadcast packet was received | |
431 | */ | |
56303d34 | 432 | struct batadv_bcast_duplist_entry { |
6b5e971a | 433 | u8 orig[ETH_ALEN]; |
004e86fc | 434 | __be32 crc; |
fe2da6ff SW |
435 | unsigned long entrytime; |
436 | }; | |
7a5cc242 | 437 | #endif |
c6c8fea2 | 438 | |
88a32c9a ML |
439 | /** |
440 | * enum batadv_counters - indices for traffic counters | |
441 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
442 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
443 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
444 | * @BATADV_CNT_RX: received payload traffic packet counter | |
445 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
446 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
447 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
448 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
449 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
450 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
451 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
ee75ed88 MH |
452 | * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter |
453 | * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
610bfc6b MH |
454 | * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter |
455 | * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
456 | * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter | |
457 | * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
88a32c9a ML |
458 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter |
459 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
460 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
461 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
462 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
463 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
464 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
465 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
466 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
467 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
468 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
469 | * counter | |
3c12de9a MH |
470 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter |
471 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
472 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
473 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
612d2b4f | 474 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding |
2df5278b MH |
475 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter |
476 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
477 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
478 | * counter | |
479 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
480 | * mode. | |
88a32c9a ML |
481 | * @BATADV_CNT_NUM: number of traffic counters |
482 | */ | |
d69909d2 | 483 | enum batadv_counters { |
1c9b0550 ML |
484 | BATADV_CNT_TX, |
485 | BATADV_CNT_TX_BYTES, | |
486 | BATADV_CNT_TX_DROPPED, | |
487 | BATADV_CNT_RX, | |
488 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
489 | BATADV_CNT_FORWARD, |
490 | BATADV_CNT_FORWARD_BYTES, | |
491 | BATADV_CNT_MGMT_TX, | |
492 | BATADV_CNT_MGMT_TX_BYTES, | |
493 | BATADV_CNT_MGMT_RX, | |
494 | BATADV_CNT_MGMT_RX_BYTES, | |
ee75ed88 MH |
495 | BATADV_CNT_FRAG_TX, |
496 | BATADV_CNT_FRAG_TX_BYTES, | |
610bfc6b MH |
497 | BATADV_CNT_FRAG_RX, |
498 | BATADV_CNT_FRAG_RX_BYTES, | |
499 | BATADV_CNT_FRAG_FWD, | |
500 | BATADV_CNT_FRAG_FWD_BYTES, | |
d69909d2 SE |
501 | BATADV_CNT_TT_REQUEST_TX, |
502 | BATADV_CNT_TT_REQUEST_RX, | |
503 | BATADV_CNT_TT_RESPONSE_TX, | |
504 | BATADV_CNT_TT_RESPONSE_RX, | |
505 | BATADV_CNT_TT_ROAM_ADV_TX, | |
506 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
507 | #ifdef CONFIG_BATMAN_ADV_DAT |
508 | BATADV_CNT_DAT_GET_TX, | |
509 | BATADV_CNT_DAT_GET_RX, | |
510 | BATADV_CNT_DAT_PUT_TX, | |
511 | BATADV_CNT_DAT_PUT_RX, | |
512 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
3c12de9a MH |
513 | #endif |
514 | #ifdef CONFIG_BATMAN_ADV_NC | |
515 | BATADV_CNT_NC_CODE, | |
516 | BATADV_CNT_NC_CODE_BYTES, | |
517 | BATADV_CNT_NC_RECODE, | |
518 | BATADV_CNT_NC_RECODE_BYTES, | |
612d2b4f | 519 | BATADV_CNT_NC_BUFFER, |
2df5278b MH |
520 | BATADV_CNT_NC_DECODE, |
521 | BATADV_CNT_NC_DECODE_BYTES, | |
522 | BATADV_CNT_NC_DECODE_FAILED, | |
523 | BATADV_CNT_NC_SNIFFED, | |
4046b24a | 524 | #endif |
d69909d2 | 525 | BATADV_CNT_NUM, |
f8214865 MH |
526 | }; |
527 | ||
807736f6 SE |
528 | /** |
529 | * struct batadv_priv_tt - per mesh interface translation table data | |
530 | * @vn: translation table version number | |
88a32c9a | 531 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 532 | * @local_changes: changes registered in an originator interval |
807736f6 | 533 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
534 | * @local_hash: local translation table hash table |
535 | * @global_hash: global translation table hash table | |
536 | * @req_list: list of pending & unanswered tt_requests | |
537 | * @roam_list: list of the last roaming events of each client limiting the | |
538 | * number of roaming events to avoid route flapping | |
539 | * @changes_list_lock: lock protecting changes_list | |
540 | * @req_list_lock: lock protecting req_list | |
541 | * @roam_list_lock: lock protecting roam_list | |
88a32c9a ML |
542 | * @last_changeset: last tt changeset this host has generated |
543 | * @last_changeset_len: length of last tt changeset this host has generated | |
544 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
a70a9aa9 AQ |
545 | * @commit_lock: prevents from executing a local TT commit while reading the |
546 | * local table. The local TT commit is made up by two operations (data | |
547 | * structure update and metdata -CRC/TTVN- recalculation) and they have to be | |
548 | * executed atomically in order to avoid another thread to read the | |
549 | * table/metadata between those. | |
88a32c9a | 550 | * @work: work queue callback item for translation table purging |
807736f6 SE |
551 | */ |
552 | struct batadv_priv_tt { | |
553 | atomic_t vn; | |
554 | atomic_t ogm_append_cnt; | |
555 | atomic_t local_changes; | |
807736f6 SE |
556 | struct list_head changes_list; |
557 | struct batadv_hashtable *local_hash; | |
558 | struct batadv_hashtable *global_hash; | |
7c26a53b | 559 | struct hlist_head req_list; |
807736f6 SE |
560 | struct list_head roam_list; |
561 | spinlock_t changes_list_lock; /* protects changes */ | |
562 | spinlock_t req_list_lock; /* protects req_list */ | |
563 | spinlock_t roam_list_lock; /* protects roam_list */ | |
807736f6 | 564 | unsigned char *last_changeset; |
6b5e971a | 565 | s16 last_changeset_len; |
88a32c9a ML |
566 | /* protects last_changeset & last_changeset_len */ |
567 | spinlock_t last_changeset_lock; | |
a70a9aa9 AQ |
568 | /* prevents from executing a commit while reading the table */ |
569 | spinlock_t commit_lock; | |
807736f6 SE |
570 | struct delayed_work work; |
571 | }; | |
572 | ||
426fc6c8 SE |
573 | #ifdef CONFIG_BATMAN_ADV_BLA |
574 | ||
88a32c9a ML |
575 | /** |
576 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
006a199d | 577 | * @num_requests: number of bla requests in flight |
88a32c9a ML |
578 | * @claim_hash: hash table containing mesh nodes this host has claimed |
579 | * @backbone_hash: hash table containing all detected backbone gateways | |
580 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
581 | * duplicate suppression) | |
582 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
583 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
584 | * @claim_dest: local claim data (e.g. claim group) | |
585 | * @work: work queue callback item for cleanups & bla announcements | |
586 | */ | |
807736f6 | 587 | struct batadv_priv_bla { |
88a32c9a | 588 | atomic_t num_requests; |
807736f6 SE |
589 | struct batadv_hashtable *claim_hash; |
590 | struct batadv_hashtable *backbone_hash; | |
591 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
592 | int bcast_duplist_curr; | |
88a32c9a | 593 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 594 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
595 | struct batadv_bla_claim_dst claim_dest; |
596 | struct delayed_work work; | |
597 | }; | |
598 | #endif | |
599 | ||
426fc6c8 SE |
600 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
601 | ||
88a32c9a | 602 | /** |
1a321b0d | 603 | * struct batadv_priv_debug_log - debug logging data |
88a32c9a ML |
604 | * @log_buff: buffer holding the logs (ring bufer) |
605 | * @log_start: index of next character to read | |
606 | * @log_end: index of next character to write | |
607 | * @lock: lock protecting log_buff, log_start & log_end | |
608 | * @queue_wait: log reader's wait queue | |
609 | */ | |
0abf5d81 ML |
610 | struct batadv_priv_debug_log { |
611 | char log_buff[BATADV_LOG_BUF_LEN]; | |
612 | unsigned long log_start; | |
613 | unsigned long log_end; | |
614 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
615 | wait_queue_head_t queue_wait; | |
616 | }; | |
617 | #endif | |
618 | ||
88a32c9a ML |
619 | /** |
620 | * struct batadv_priv_gw - per mesh interface gateway data | |
621 | * @list: list of available gateway nodes | |
622 | * @list_lock: lock protecting gw_list & curr_gw | |
623 | * @curr_gw: pointer to currently selected gateway node | |
414254e3 ML |
624 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) |
625 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
88a32c9a ML |
626 | * @reselect: bool indicating a gateway re-selection is in progress |
627 | */ | |
807736f6 SE |
628 | struct batadv_priv_gw { |
629 | struct hlist_head list; | |
88a32c9a | 630 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 | 631 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
414254e3 ML |
632 | atomic_t bandwidth_down; |
633 | atomic_t bandwidth_up; | |
807736f6 SE |
634 | atomic_t reselect; |
635 | }; | |
636 | ||
ef261577 ML |
637 | /** |
638 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
639 | * @container_list: list of registered tvlv containers to be sent with each OGM | |
640 | * @handler_list: list of the various tvlv content handlers | |
641 | * @container_list_lock: protects tvlv container list access | |
642 | * @handler_list_lock: protects handler list access | |
643 | */ | |
644 | struct batadv_priv_tvlv { | |
645 | struct hlist_head container_list; | |
646 | struct hlist_head handler_list; | |
647 | spinlock_t container_list_lock; /* protects container_list */ | |
648 | spinlock_t handler_list_lock; /* protects handler_list */ | |
649 | }; | |
650 | ||
426fc6c8 SE |
651 | #ifdef CONFIG_BATMAN_ADV_DAT |
652 | ||
785ea114 AQ |
653 | /** |
654 | * struct batadv_priv_dat - per mesh interface DAT private data | |
655 | * @addr: node DAT address | |
2f1dfbe1 AQ |
656 | * @hash: hashtable representing the local ARP cache |
657 | * @work: work queue callback item for cache purging | |
785ea114 AQ |
658 | */ |
659 | struct batadv_priv_dat { | |
660 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
661 | struct batadv_hashtable *hash; |
662 | struct delayed_work work; | |
785ea114 | 663 | }; |
17224474 | 664 | #endif |
785ea114 | 665 | |
c5caf4ef LL |
666 | #ifdef CONFIG_BATMAN_ADV_MCAST |
667 | /** | |
668 | * struct batadv_priv_mcast - per mesh interface mcast data | |
669 | * @mla_list: list of multicast addresses we are currently announcing via TT | |
ab49886e LL |
670 | * @want_all_unsnoopables_list: a list of orig_nodes wanting all unsnoopable |
671 | * multicast traffic | |
4c8755d6 LL |
672 | * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast traffic |
673 | * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast traffic | |
60432d75 LL |
674 | * @flags: the flags we have last sent in our mcast tvlv |
675 | * @enabled: whether the multicast tvlv is currently enabled | |
676 | * @num_disabled: number of nodes that have no mcast tvlv | |
ab49886e | 677 | * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP traffic |
4c8755d6 LL |
678 | * @num_want_all_ipv4: counter for items in want_all_ipv4_list |
679 | * @num_want_all_ipv6: counter for items in want_all_ipv6_list | |
ab49886e LL |
680 | * @want_lists_lock: lock for protecting modifications to mcast want lists |
681 | * (traversals are rcu-locked) | |
c5caf4ef LL |
682 | */ |
683 | struct batadv_priv_mcast { | |
684 | struct hlist_head mla_list; | |
ab49886e | 685 | struct hlist_head want_all_unsnoopables_list; |
4c8755d6 LL |
686 | struct hlist_head want_all_ipv4_list; |
687 | struct hlist_head want_all_ipv6_list; | |
6b5e971a | 688 | u8 flags; |
60432d75 LL |
689 | bool enabled; |
690 | atomic_t num_disabled; | |
ab49886e | 691 | atomic_t num_want_all_unsnoopables; |
4c8755d6 LL |
692 | atomic_t num_want_all_ipv4; |
693 | atomic_t num_want_all_ipv6; | |
694 | /* protects want_all_{unsnoopables,ipv4,ipv6}_list */ | |
ab49886e | 695 | spinlock_t want_lists_lock; |
c5caf4ef LL |
696 | }; |
697 | #endif | |
698 | ||
d353d8d4 MH |
699 | /** |
700 | * struct batadv_priv_nc - per mesh interface network coding private data | |
701 | * @work: work queue callback item for cleanup | |
d56b1705 MH |
702 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
703 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
95332477 | 704 | * @max_fwd_delay: maximum packet forward delay to allow coding of packets |
612d2b4f | 705 | * @max_buffer_time: buffer time for sniffed packets used to decoding |
95332477 | 706 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush |
612d2b4f | 707 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge |
95332477 MH |
708 | * @coding_hash: Hash table used to buffer skbs while waiting for another |
709 | * incoming skb to code it with. Skbs are added to the buffer just before being | |
710 | * forwarded in routing.c | |
612d2b4f MH |
711 | * @decoding_hash: Hash table used to buffer skbs that might be needed to decode |
712 | * a received coded skb. The buffer is used for 1) skbs arriving on the | |
713 | * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
714 | * forwarded by batman-adv. | |
d353d8d4 MH |
715 | */ |
716 | struct batadv_priv_nc { | |
717 | struct delayed_work work; | |
d56b1705 MH |
718 | struct dentry *debug_dir; |
719 | u8 min_tq; | |
95332477 | 720 | u32 max_fwd_delay; |
612d2b4f | 721 | u32 max_buffer_time; |
95332477 | 722 | unsigned long timestamp_fwd_flush; |
612d2b4f | 723 | unsigned long timestamp_sniffed_purge; |
95332477 | 724 | struct batadv_hashtable *coding_hash; |
612d2b4f | 725 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
726 | }; |
727 | ||
5d2c05b2 AQ |
728 | /** |
729 | * struct batadv_softif_vlan - per VLAN attributes set | |
35df3b29 | 730 | * @bat_priv: pointer to the mesh object |
5d2c05b2 AQ |
731 | * @vid: VLAN identifier |
732 | * @kobj: kobject for sysfs vlan subdirectory | |
b8cbd81d | 733 | * @ap_isolation: AP isolation state |
7ea7b4a1 | 734 | * @tt: TT private attributes (VLAN specific) |
5d2c05b2 AQ |
735 | * @list: list node for bat_priv::softif_vlan_list |
736 | * @refcount: number of context where this object is currently in use | |
737 | * @rcu: struct used for freeing in a RCU-safe manner | |
738 | */ | |
739 | struct batadv_softif_vlan { | |
35df3b29 | 740 | struct batadv_priv *bat_priv; |
5d2c05b2 AQ |
741 | unsigned short vid; |
742 | struct kobject *kobj; | |
b8cbd81d | 743 | atomic_t ap_isolation; /* boolean */ |
7ea7b4a1 | 744 | struct batadv_vlan_tt tt; |
5d2c05b2 AQ |
745 | struct hlist_node list; |
746 | atomic_t refcount; | |
747 | struct rcu_head rcu; | |
748 | }; | |
749 | ||
88a32c9a ML |
750 | /** |
751 | * struct batadv_priv - per mesh interface data | |
752 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 753 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
754 | * @stats: structure holding the data for the ndo_get_stats() call |
755 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
756 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
757 | * @bonding: bool indicating whether traffic bonding is enabled | |
758 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
a19d3d85 ML |
759 | * @packet_size_max: max packet size that can be transmitted via |
760 | * multiple fragmented skbs or a single frame if fragmentation is disabled | |
ee75ed88 | 761 | * @frag_seqno: incremental counter to identify chains of egress fragments |
88a32c9a ML |
762 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is |
763 | * enabled | |
764 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
765 | * enabled | |
1d8ab8d3 LL |
766 | * @multicast_mode: Enable or disable multicast optimizations on this node's |
767 | * sender/originating side | |
88a32c9a ML |
768 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) |
769 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
88a32c9a ML |
770 | * @orig_interval: OGM broadcast interval in milliseconds |
771 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
772 | * @log_level: configured log level (see batadv_dbg_level) | |
773 | * @bcast_seqno: last sent broadcast packet sequence number | |
774 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
775 | * @batman_queue_left: number of remaining OGM packet slots | |
776 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
777 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
778 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
779 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
780 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
781 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
782 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
783 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
784 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 785 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
786 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
787 | * becomes the primary interface | |
788 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
5d2c05b2 AQ |
789 | * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top |
790 | * of the mesh interface represented by this object | |
791 | * @softif_vlan_list_lock: lock protecting softif_vlan_list | |
88a32c9a ML |
792 | * @bla: bridge loope avoidance data |
793 | * @debug_log: holding debug logging relevant data | |
794 | * @gw: gateway data | |
795 | * @tt: translation table data | |
ef261577 | 796 | * @tvlv: type-version-length-value data |
88a32c9a | 797 | * @dat: distributed arp table data |
c5caf4ef | 798 | * @mcast: multicast data |
d353d8d4 | 799 | * @network_coding: bool indicating whether network coding is enabled |
006a199d | 800 | * @nc: network coding data |
88a32c9a | 801 | */ |
56303d34 | 802 | struct batadv_priv { |
c6c8fea2 | 803 | atomic_t mesh_state; |
5bc44dc8 | 804 | struct net_device *soft_iface; |
c6c8fea2 | 805 | struct net_device_stats stats; |
6b5e971a | 806 | u64 __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
807 | atomic_t aggregated_ogms; |
808 | atomic_t bonding; | |
809 | atomic_t fragmentation; | |
a19d3d85 | 810 | atomic_t packet_size_max; |
ee75ed88 | 811 | atomic_t frag_seqno; |
fa706554 | 812 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 813 | atomic_t bridge_loop_avoidance; |
fa706554 | 814 | #endif |
33af49ad | 815 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 816 | atomic_t distributed_arp_table; |
1d8ab8d3 LL |
817 | #endif |
818 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
819 | atomic_t multicast_mode; | |
33af49ad | 820 | #endif |
88a32c9a ML |
821 | atomic_t gw_mode; |
822 | atomic_t gw_sel_class; | |
88a32c9a ML |
823 | atomic_t orig_interval; |
824 | atomic_t hop_penalty; | |
0c430d0d | 825 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 826 | atomic_t log_level; |
0c430d0d | 827 | #endif |
6b5e971a SE |
828 | u32 isolation_mark; |
829 | u32 isolation_mark_mask; | |
c6c8fea2 SE |
830 | atomic_t bcast_seqno; |
831 | atomic_t bcast_queue_left; | |
832 | atomic_t batman_queue_left; | |
833 | char num_ifaces; | |
c6c8fea2 SE |
834 | struct kobject *mesh_obj; |
835 | struct dentry *debug_dir; | |
836 | struct hlist_head forw_bat_list; | |
837 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 838 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 839 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 840 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 841 | struct delayed_work orig_work; |
5bc44dc8 | 842 | struct work_struct cleanup_work; |
56303d34 | 843 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 844 | struct batadv_algo_ops *bat_algo_ops; |
5d2c05b2 AQ |
845 | struct hlist_head softif_vlan_list; |
846 | spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */ | |
807736f6 SE |
847 | #ifdef CONFIG_BATMAN_ADV_BLA |
848 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
849 | #endif |
850 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
851 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
852 | #endif |
853 | struct batadv_priv_gw gw; | |
854 | struct batadv_priv_tt tt; | |
ef261577 | 855 | struct batadv_priv_tvlv tvlv; |
17224474 | 856 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 857 | struct batadv_priv_dat dat; |
17224474 | 858 | #endif |
c5caf4ef LL |
859 | #ifdef CONFIG_BATMAN_ADV_MCAST |
860 | struct batadv_priv_mcast mcast; | |
861 | #endif | |
d353d8d4 MH |
862 | #ifdef CONFIG_BATMAN_ADV_NC |
863 | atomic_t network_coding; | |
864 | struct batadv_priv_nc nc; | |
865 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
866 | }; |
867 | ||
88a32c9a ML |
868 | /** |
869 | * struct batadv_socket_client - layer2 icmp socket client data | |
870 | * @queue_list: packet queue for packets destined for this socket client | |
871 | * @queue_len: number of packets in the packet queue (queue_list) | |
872 | * @index: socket client's index in the batadv_socket_client_hash | |
873 | * @lock: lock protecting queue_list, queue_len & index | |
874 | * @queue_wait: socket client's wait queue | |
875 | * @bat_priv: pointer to soft_iface this client belongs to | |
876 | */ | |
56303d34 | 877 | struct batadv_socket_client { |
c6c8fea2 SE |
878 | struct list_head queue_list; |
879 | unsigned int queue_len; | |
880 | unsigned char index; | |
88a32c9a | 881 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 882 | wait_queue_head_t queue_wait; |
56303d34 | 883 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
884 | }; |
885 | ||
88a32c9a ML |
886 | /** |
887 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
888 | * @list: list node for batadv_socket_client::queue_list | |
889 | * @icmp_len: size of the layer2 icmp packet | |
890 | * @icmp_packet: layer2 icmp packet | |
891 | */ | |
56303d34 | 892 | struct batadv_socket_packet { |
c6c8fea2 SE |
893 | struct list_head list; |
894 | size_t icmp_len; | |
6b5e971a | 895 | u8 icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; |
c6c8fea2 SE |
896 | }; |
897 | ||
426fc6c8 SE |
898 | #ifdef CONFIG_BATMAN_ADV_BLA |
899 | ||
88a32c9a ML |
900 | /** |
901 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
902 | * @orig: originator address of backbone node (mac address of primary iface) | |
903 | * @vid: vlan id this gateway was detected on | |
904 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
905 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
906 | * @lasttime: last time we heard of this backbone gw | |
907 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
908 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
909 | * @request_sent: if this bool is set to true we are out of sync with this | |
910 | * backbone gateway - no bcast traffic is formwared until the situation was | |
911 | * resolved | |
912 | * @crc: crc16 checksum over all claims | |
5a1dd8a4 | 913 | * @crc_lock: lock protecting crc |
88a32c9a ML |
914 | * @refcount: number of contexts the object is used |
915 | * @rcu: struct used for freeing in an RCU-safe manner | |
916 | */ | |
bae98774 | 917 | struct batadv_bla_backbone_gw { |
6b5e971a | 918 | u8 orig[ETH_ALEN]; |
eb2deb6b | 919 | unsigned short vid; |
2006fea8 ML |
920 | struct hlist_node hash_entry; |
921 | struct batadv_priv *bat_priv; | |
88a32c9a | 922 | unsigned long lasttime; |
2006fea8 ML |
923 | atomic_t wait_periods; |
924 | atomic_t request_sent; | |
6b5e971a | 925 | u16 crc; |
5a1dd8a4 | 926 | spinlock_t crc_lock; /* protects crc */ |
2006fea8 ML |
927 | atomic_t refcount; |
928 | struct rcu_head rcu; | |
2006fea8 ML |
929 | }; |
930 | ||
88a32c9a ML |
931 | /** |
932 | * struct batadv_bla_claim - claimed non-mesh client structure | |
933 | * @addr: mac address of claimed non-mesh client | |
934 | * @vid: vlan id this client was detected on | |
006a199d | 935 | * @backbone_gw: pointer to backbone gw claiming this client |
88a32c9a ML |
936 | * @lasttime: last time we heard of claim (locals only) |
937 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
938 | * @refcount: number of contexts the object is used | |
939 | * @rcu: struct used for freeing in an RCU-safe manner | |
940 | */ | |
712bbfe4 | 941 | struct batadv_bla_claim { |
6b5e971a | 942 | u8 addr[ETH_ALEN]; |
eb2deb6b | 943 | unsigned short vid; |
bae98774 | 944 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
945 | unsigned long lasttime; |
946 | struct hlist_node hash_entry; | |
2006fea8 ML |
947 | struct rcu_head rcu; |
948 | atomic_t refcount; | |
2006fea8 ML |
949 | }; |
950 | #endif | |
951 | ||
88a32c9a ML |
952 | /** |
953 | * struct batadv_tt_common_entry - tt local & tt global common data | |
954 | * @addr: mac address of non-mesh client | |
c018ad3d | 955 | * @vid: VLAN identifier |
88a32c9a ML |
956 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for |
957 | * batadv_priv_tt::global_hash | |
958 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
959 | * @added_at: timestamp used for purging stale tt common entries | |
960 | * @refcount: number of contexts the object is used | |
961 | * @rcu: struct used for freeing in an RCU-safe manner | |
962 | */ | |
56303d34 | 963 | struct batadv_tt_common_entry { |
6b5e971a | 964 | u8 addr[ETH_ALEN]; |
c018ad3d | 965 | unsigned short vid; |
93840ac4 | 966 | struct hlist_node hash_entry; |
6b5e971a | 967 | u16 flags; |
30cfd02b | 968 | unsigned long added_at; |
7683fdc1 AQ |
969 | atomic_t refcount; |
970 | struct rcu_head rcu; | |
c6c8fea2 SE |
971 | }; |
972 | ||
88a32c9a ML |
973 | /** |
974 | * struct batadv_tt_local_entry - translation table local entry data | |
975 | * @common: general translation table data | |
976 | * @last_seen: timestamp used for purging stale tt local entries | |
977 | */ | |
56303d34 SE |
978 | struct batadv_tt_local_entry { |
979 | struct batadv_tt_common_entry common; | |
48100bac AQ |
980 | unsigned long last_seen; |
981 | }; | |
982 | ||
88a32c9a ML |
983 | /** |
984 | * struct batadv_tt_global_entry - translation table global entry data | |
985 | * @common: general translation table data | |
986 | * @orig_list: list of orig nodes announcing this non-mesh client | |
1d8ab8d3 | 987 | * @orig_list_count: number of items in the orig_list |
88a32c9a ML |
988 | * @list_lock: lock protecting orig_list |
989 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
990 | */ | |
56303d34 SE |
991 | struct batadv_tt_global_entry { |
992 | struct batadv_tt_common_entry common; | |
db08e6e5 | 993 | struct hlist_head orig_list; |
1d8ab8d3 | 994 | atomic_t orig_list_count; |
88a32c9a ML |
995 | spinlock_t list_lock; /* protects orig_list */ |
996 | unsigned long roam_at; | |
db08e6e5 SW |
997 | }; |
998 | ||
88a32c9a ML |
999 | /** |
1000 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
1001 | * @orig_node: pointer to orig node announcing this non-mesh client | |
1002 | * @ttvn: translation table version number which added the non-mesh client | |
1003 | * @list: list node for batadv_tt_global_entry::orig_list | |
1004 | * @refcount: number of contexts the object is used | |
1005 | * @rcu: struct used for freeing in an RCU-safe manner | |
1006 | */ | |
56303d34 SE |
1007 | struct batadv_tt_orig_list_entry { |
1008 | struct batadv_orig_node *orig_node; | |
6b5e971a | 1009 | u8 ttvn; |
88a32c9a | 1010 | struct hlist_node list; |
d657e621 | 1011 | atomic_t refcount; |
db08e6e5 | 1012 | struct rcu_head rcu; |
c6c8fea2 SE |
1013 | }; |
1014 | ||
88a32c9a | 1015 | /** |
3f68785e | 1016 | * struct batadv_tt_change_node - structure for tt changes occurred |
88a32c9a ML |
1017 | * @list: list node for batadv_priv_tt::changes_list |
1018 | * @change: holds the actual translation table diff data | |
1019 | */ | |
56303d34 | 1020 | struct batadv_tt_change_node { |
a73105b8 | 1021 | struct list_head list; |
e1bf0c14 | 1022 | struct batadv_tvlv_tt_change change; |
a73105b8 AQ |
1023 | }; |
1024 | ||
88a32c9a ML |
1025 | /** |
1026 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
1027 | * @addr: mac address address of the originator this request was sent to | |
1028 | * @issued_at: timestamp used for purging stale tt requests | |
1029 | * @list: list node for batadv_priv_tt::req_list | |
1030 | */ | |
56303d34 | 1031 | struct batadv_tt_req_node { |
6b5e971a | 1032 | u8 addr[ETH_ALEN]; |
a73105b8 | 1033 | unsigned long issued_at; |
7c26a53b | 1034 | struct hlist_node list; |
a73105b8 AQ |
1035 | }; |
1036 | ||
88a32c9a ML |
1037 | /** |
1038 | * struct batadv_tt_roam_node - roaming client data | |
1039 | * @addr: mac address of the client in the roaming phase | |
1040 | * @counter: number of allowed roaming events per client within a single | |
1041 | * OGM interval (changes are committed with each OGM) | |
1042 | * @first_time: timestamp used for purging stale roaming node entries | |
1043 | * @list: list node for batadv_priv_tt::roam_list | |
1044 | */ | |
56303d34 | 1045 | struct batadv_tt_roam_node { |
6b5e971a | 1046 | u8 addr[ETH_ALEN]; |
cc47f66e AQ |
1047 | atomic_t counter; |
1048 | unsigned long first_time; | |
1049 | struct list_head list; | |
1050 | }; | |
1051 | ||
d56b1705 MH |
1052 | /** |
1053 | * struct batadv_nc_node - network coding node | |
1054 | * @list: next and prev pointer for the list handling | |
1055 | * @addr: the node's mac address | |
1056 | * @refcount: number of contexts the object is used by | |
1057 | * @rcu: struct used for freeing in an RCU-safe manner | |
1058 | * @orig_node: pointer to corresponding orig node struct | |
1059 | * @last_seen: timestamp of last ogm received from this node | |
1060 | */ | |
1061 | struct batadv_nc_node { | |
1062 | struct list_head list; | |
6b5e971a | 1063 | u8 addr[ETH_ALEN]; |
d56b1705 MH |
1064 | atomic_t refcount; |
1065 | struct rcu_head rcu; | |
1066 | struct batadv_orig_node *orig_node; | |
1067 | unsigned long last_seen; | |
1068 | }; | |
1069 | ||
95332477 MH |
1070 | /** |
1071 | * struct batadv_nc_path - network coding path | |
1072 | * @hash_entry: next and prev pointer for the list handling | |
1073 | * @rcu: struct used for freeing in an RCU-safe manner | |
1074 | * @refcount: number of contexts the object is used by | |
1075 | * @packet_list: list of buffered packets for this path | |
1076 | * @packet_list_lock: access lock for packet list | |
1077 | * @next_hop: next hop (destination) of path | |
1078 | * @prev_hop: previous hop (source) of path | |
1079 | * @last_valid: timestamp for last validation of path | |
1080 | */ | |
1081 | struct batadv_nc_path { | |
1082 | struct hlist_node hash_entry; | |
1083 | struct rcu_head rcu; | |
1084 | atomic_t refcount; | |
1085 | struct list_head packet_list; | |
1086 | spinlock_t packet_list_lock; /* Protects packet_list */ | |
6b5e971a SE |
1087 | u8 next_hop[ETH_ALEN]; |
1088 | u8 prev_hop[ETH_ALEN]; | |
95332477 MH |
1089 | unsigned long last_valid; |
1090 | }; | |
1091 | ||
1092 | /** | |
1093 | * struct batadv_nc_packet - network coding packet used when coding and | |
1094 | * decoding packets | |
1095 | * @list: next and prev pointer for the list handling | |
1096 | * @packet_id: crc32 checksum of skb data | |
1097 | * @timestamp: field containing the info when the packet was added to path | |
1098 | * @neigh_node: pointer to original next hop neighbor of skb | |
1099 | * @skb: skb which can be encoded or used for decoding | |
1100 | * @nc_path: pointer to path this nc packet is attached to | |
1101 | */ | |
1102 | struct batadv_nc_packet { | |
1103 | struct list_head list; | |
1104 | __be32 packet_id; | |
1105 | unsigned long timestamp; | |
1106 | struct batadv_neigh_node *neigh_node; | |
1107 | struct sk_buff *skb; | |
1108 | struct batadv_nc_path *nc_path; | |
1109 | }; | |
1110 | ||
3c12de9a | 1111 | /** |
1a321b0d SW |
1112 | * struct batadv_skb_cb - control buffer structure used to store private data |
1113 | * relevant to batman-adv in the skb->cb buffer in skbs. | |
3c12de9a MH |
1114 | * @decoded: Marks a skb as decoded, which is checked when searching for coding |
1115 | * opportunities in network-coding.c | |
1116 | */ | |
1117 | struct batadv_skb_cb { | |
1118 | bool decoded; | |
1119 | }; | |
1120 | ||
88a32c9a ML |
1121 | /** |
1122 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
1123 | * @list: list node for batadv_socket_client::queue_list | |
1124 | * @send_time: execution time for delayed_work (packet sending) | |
1125 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
1126 | * sending) | |
1127 | * @skb: bcast packet's skb buffer | |
1128 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
1129 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
1130 | * @num_packets: counter for bcast packet retransmission | |
1131 | * @delayed_work: work queue callback item for packet sending | |
ef0a937f SW |
1132 | * @if_incoming: pointer to incoming hard-iface or primary iface if |
1133 | * locally generated packet | |
1134 | * @if_outgoing: packet where the packet should be sent to, or NULL if | |
1135 | * unspecified | |
c6c8fea2 | 1136 | */ |
56303d34 | 1137 | struct batadv_forw_packet { |
c6c8fea2 SE |
1138 | struct hlist_node list; |
1139 | unsigned long send_time; | |
6b5e971a | 1140 | u8 own; |
c6c8fea2 | 1141 | struct sk_buff *skb; |
6b5e971a SE |
1142 | u16 packet_len; |
1143 | u32 direct_link_flags; | |
1144 | u8 num_packets; | |
c6c8fea2 | 1145 | struct delayed_work delayed_work; |
56303d34 | 1146 | struct batadv_hard_iface *if_incoming; |
ef0a937f | 1147 | struct batadv_hard_iface *if_outgoing; |
c6c8fea2 SE |
1148 | }; |
1149 | ||
88a32c9a ML |
1150 | /** |
1151 | * struct batadv_algo_ops - mesh algorithm callbacks | |
1152 | * @list: list node for the batadv_algo_list | |
1153 | * @name: name of the algorithm | |
1154 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
1155 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
1156 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
1157 | * belonging to this hard-interface | |
1158 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
1159 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
1160 | * @bat_ogm_emit: send scheduled OGM | |
8248a4c7 | 1161 | * @bat_hardif_neigh_init: called on creation of single hop entry |
89652331 SW |
1162 | * @bat_neigh_cmp: compare the metrics of two neighbors for their respective |
1163 | * outgoing interfaces | |
18165f6f SW |
1164 | * @bat_neigh_is_similar_or_better: check if neigh1 is equally similar or |
1165 | * better than neigh2 for their respective outgoing interface from the metric | |
89652331 | 1166 | * prospective |
7587405a | 1167 | * @bat_neigh_print: print the single hop neighbor list (optional) |
bcef1f3c AQ |
1168 | * @bat_neigh_free: free the resources allocated by the routing algorithm for a |
1169 | * neigh_node object | |
737a2a22 | 1170 | * @bat_orig_print: print the originator table (optional) |
d0015fdd AQ |
1171 | * @bat_orig_free: free the resources allocated by the routing algorithm for an |
1172 | * orig_node object | |
1173 | * @bat_orig_add_if: ask the routing algorithm to apply the needed changes to | |
1174 | * the orig_node due to a new hard-interface being added into the mesh | |
1175 | * @bat_orig_del_if: ask the routing algorithm to apply the needed changes to | |
1176 | * the orig_node due to an hard-interface being removed from the mesh | |
88a32c9a | 1177 | */ |
56303d34 | 1178 | struct batadv_algo_ops { |
1c280471 ML |
1179 | struct hlist_node list; |
1180 | char *name; | |
56303d34 | 1181 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1182 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1183 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1184 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1185 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1186 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
bcef1f3c | 1187 | /* neigh_node handling API */ |
8248a4c7 | 1188 | void (*bat_hardif_neigh_init)(struct batadv_hardif_neigh_node *neigh); |
a3285a8f | 1189 | int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1, |
89652331 SW |
1190 | struct batadv_hard_iface *if_outgoing1, |
1191 | struct batadv_neigh_node *neigh2, | |
1192 | struct batadv_hard_iface *if_outgoing2); | |
18165f6f | 1193 | bool (*bat_neigh_is_similar_or_better) |
89652331 SW |
1194 | (struct batadv_neigh_node *neigh1, |
1195 | struct batadv_hard_iface *if_outgoing1, | |
1196 | struct batadv_neigh_node *neigh2, | |
1197 | struct batadv_hard_iface *if_outgoing2); | |
7587405a | 1198 | void (*bat_neigh_print)(struct batadv_priv *priv, struct seq_file *seq); |
bcef1f3c | 1199 | void (*bat_neigh_free)(struct batadv_neigh_node *neigh); |
737a2a22 | 1200 | /* orig_node handling API */ |
cb1c92ec SW |
1201 | void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq, |
1202 | struct batadv_hard_iface *hard_iface); | |
d0015fdd AQ |
1203 | void (*bat_orig_free)(struct batadv_orig_node *orig_node); |
1204 | int (*bat_orig_add_if)(struct batadv_orig_node *orig_node, | |
1205 | int max_if_num); | |
1206 | int (*bat_orig_del_if)(struct batadv_orig_node *orig_node, | |
1207 | int max_if_num, int del_if_num); | |
1c280471 ML |
1208 | }; |
1209 | ||
2f1dfbe1 AQ |
1210 | /** |
1211 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
1212 | * is used to stored ARP entries needed for the global DAT cache | |
1213 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
1214 | * @mac_addr: the MAC address associated to the stored IPv4 | |
be1db4f6 | 1215 | * @vid: the vlan ID associated to this entry |
2f1dfbe1 AQ |
1216 | * @last_update: time in jiffies when this entry was refreshed last time |
1217 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
1218 | * @refcount: number of contexts the object is used | |
1219 | * @rcu: struct used for freeing in an RCU-safe manner | |
1220 | */ | |
1221 | struct batadv_dat_entry { | |
1222 | __be32 ip; | |
6b5e971a | 1223 | u8 mac_addr[ETH_ALEN]; |
be1db4f6 | 1224 | unsigned short vid; |
2f1dfbe1 AQ |
1225 | unsigned long last_update; |
1226 | struct hlist_node hash_entry; | |
1227 | atomic_t refcount; | |
1228 | struct rcu_head rcu; | |
1229 | }; | |
1230 | ||
c5caf4ef LL |
1231 | /** |
1232 | * struct batadv_hw_addr - a list entry for a MAC address | |
1233 | * @list: list node for the linking of entries | |
1234 | * @addr: the MAC address of this list entry | |
1235 | */ | |
1236 | struct batadv_hw_addr { | |
1237 | struct hlist_node list; | |
1238 | unsigned char addr[ETH_ALEN]; | |
1239 | }; | |
1240 | ||
785ea114 AQ |
1241 | /** |
1242 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
1243 | * @type: the type of the selected candidate. It can one of the following: | |
1244 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
1245 | * - BATADV_DAT_CANDIDATE_ORIG | |
1246 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
1247 | * corresponding originator node structure | |
1248 | */ | |
1249 | struct batadv_dat_candidate { | |
1250 | int type; | |
1251 | struct batadv_orig_node *orig_node; | |
1252 | }; | |
1253 | ||
ef261577 ML |
1254 | /** |
1255 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
1256 | * @list: hlist node for batadv_priv_tvlv::container_list | |
1257 | * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
ef261577 ML |
1258 | * @refcount: number of contexts the object is used |
1259 | */ | |
1260 | struct batadv_tvlv_container { | |
1261 | struct hlist_node list; | |
1262 | struct batadv_tvlv_hdr tvlv_hdr; | |
1263 | atomic_t refcount; | |
1264 | }; | |
1265 | ||
1266 | /** | |
1267 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
1268 | * @list: hlist node for batadv_priv_tvlv::handler_list | |
1269 | * @ogm_handler: handler callback which is given the tvlv payload to process on | |
1270 | * incoming OGM packets | |
1271 | * @unicast_handler: handler callback which is given the tvlv payload to process | |
1272 | * on incoming unicast tvlv packets | |
1273 | * @type: tvlv type this handler feels responsible for | |
1274 | * @version: tvlv version this handler feels responsible for | |
1275 | * @flags: tvlv handler flags | |
1276 | * @refcount: number of contexts the object is used | |
1277 | * @rcu: struct used for freeing in an RCU-safe manner | |
1278 | */ | |
1279 | struct batadv_tvlv_handler { | |
1280 | struct hlist_node list; | |
1281 | void (*ogm_handler)(struct batadv_priv *bat_priv, | |
1282 | struct batadv_orig_node *orig, | |
6b5e971a | 1283 | u8 flags, void *tvlv_value, u16 tvlv_value_len); |
ef261577 | 1284 | int (*unicast_handler)(struct batadv_priv *bat_priv, |
6b5e971a SE |
1285 | u8 *src, u8 *dst, |
1286 | void *tvlv_value, u16 tvlv_value_len); | |
1287 | u8 type; | |
1288 | u8 version; | |
1289 | u8 flags; | |
ef261577 ML |
1290 | atomic_t refcount; |
1291 | struct rcu_head rcu; | |
1292 | }; | |
1293 | ||
1294 | /** | |
1295 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
1296 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
1297 | * this handler even if its type was not found (with no data) | |
1298 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
1299 | * a handler as being called, so it won't be called if the | |
1300 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
1301 | */ | |
1302 | enum batadv_tvlv_handler_flags { | |
1303 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
1304 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
1305 | }; | |
1306 | ||
c6c8fea2 | 1307 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |