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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 | */ | |
47 | #define batadv_dat_addr_t uint16_t | |
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 |
88a32c9a | 103 | */ |
56303d34 | 104 | struct batadv_hard_iface { |
c6c8fea2 SE |
105 | struct list_head list; |
106 | int16_t if_num; | |
107 | char if_status; | |
108 | struct net_device *net_dev; | |
caf65bfc | 109 | uint8_t num_bcasts; |
c6c8fea2 | 110 | struct kobject *hardif_obj; |
ed75ccbe | 111 | atomic_t refcount; |
c6c8fea2 SE |
112 | struct packet_type batman_adv_ptype; |
113 | struct net_device *soft_iface; | |
114 | struct rcu_head rcu; | |
14511519 | 115 | struct batadv_hard_iface_bat_iv bat_iv; |
5bc44dc8 | 116 | struct work_struct cleanup_work; |
5bc7c1eb | 117 | struct dentry *debug_dir; |
c6c8fea2 SE |
118 | }; |
119 | ||
7351a482 SW |
120 | /** |
121 | * struct batadv_orig_ifinfo - originator info per outgoing interface | |
122 | * @list: list node for orig_node::ifinfo_list | |
123 | * @if_outgoing: pointer to outgoing hard interface | |
124 | * @router: router that should be used to reach this originator | |
125 | * @last_real_seqno: last and best known sequence number | |
126 | * @last_ttl: ttl of last received packet | |
127 | * @batman_seqno_reset: time when the batman seqno window was reset | |
128 | * @refcount: number of contexts the object is used | |
129 | * @rcu: struct used for freeing in an RCU-safe manner | |
130 | */ | |
131 | struct batadv_orig_ifinfo { | |
132 | struct hlist_node list; | |
133 | struct batadv_hard_iface *if_outgoing; | |
134 | struct batadv_neigh_node __rcu *router; /* rcu protected pointer */ | |
135 | uint32_t last_real_seqno; | |
136 | uint8_t last_ttl; | |
137 | unsigned long batman_seqno_reset; | |
138 | atomic_t refcount; | |
139 | struct rcu_head rcu; | |
140 | }; | |
141 | ||
610bfc6b MH |
142 | /** |
143 | * struct batadv_frag_table_entry - head in the fragment buffer table | |
144 | * @head: head of list with fragments | |
145 | * @lock: lock to protect the list of fragments | |
146 | * @timestamp: time (jiffie) of last received fragment | |
147 | * @seqno: sequence number of the fragments in the list | |
148 | * @size: accumulated size of packets in list | |
53e77145 | 149 | * @total_size: expected size of the assembled packet |
610bfc6b MH |
150 | */ |
151 | struct batadv_frag_table_entry { | |
152 | struct hlist_head head; | |
153 | spinlock_t lock; /* protects head */ | |
154 | unsigned long timestamp; | |
155 | uint16_t seqno; | |
156 | uint16_t size; | |
53e77145 | 157 | uint16_t total_size; |
610bfc6b MH |
158 | }; |
159 | ||
160 | /** | |
161 | * struct batadv_frag_list_entry - entry in a list of fragments | |
162 | * @list: list node information | |
163 | * @skb: fragment | |
164 | * @no: fragment number in the set | |
165 | */ | |
166 | struct batadv_frag_list_entry { | |
167 | struct hlist_node list; | |
168 | struct sk_buff *skb; | |
169 | uint8_t no; | |
170 | }; | |
171 | ||
7ea7b4a1 AQ |
172 | /** |
173 | * struct batadv_vlan_tt - VLAN specific TT attributes | |
174 | * @crc: CRC32 checksum of the entries belonging to this vlan | |
175 | * @num_entries: number of TT entries for this VLAN | |
176 | */ | |
177 | struct batadv_vlan_tt { | |
178 | uint32_t crc; | |
179 | atomic_t num_entries; | |
180 | }; | |
181 | ||
182 | /** | |
1a321b0d | 183 | * struct batadv_orig_node_vlan - VLAN specific data per orig_node |
7ea7b4a1 AQ |
184 | * @vid: the VLAN identifier |
185 | * @tt: VLAN specific TT attributes | |
186 | * @list: list node for orig_node::vlan_list | |
187 | * @refcount: number of context where this object is currently in use | |
188 | * @rcu: struct used for freeing in a RCU-safe manner | |
189 | */ | |
190 | struct batadv_orig_node_vlan { | |
191 | unsigned short vid; | |
192 | struct batadv_vlan_tt tt; | |
193 | struct list_head list; | |
194 | atomic_t refcount; | |
195 | struct rcu_head rcu; | |
196 | }; | |
197 | ||
bbad0a5e AQ |
198 | /** |
199 | * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members | |
21102626 MP |
200 | * @bcast_own: set of bitfields (one per hard interface) where each one counts |
201 | * the number of our OGMs this orig_node rebroadcasted "back" to us (relative | |
202 | * to last_real_seqno). Every bitfield is BATADV_TQ_LOCAL_WINDOW_SIZE bits long. | |
203 | * @bcast_own_sum: sum of bcast_own | |
bbad0a5e AQ |
204 | * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum, |
205 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
206 | */ | |
207 | struct batadv_orig_bat_iv { | |
208 | unsigned long *bcast_own; | |
209 | uint8_t *bcast_own_sum; | |
210 | /* ogm_cnt_lock protects: bcast_own, bcast_own_sum, | |
211 | * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count | |
212 | */ | |
213 | spinlock_t ogm_cnt_lock; | |
214 | }; | |
215 | ||
2c53040f | 216 | /** |
b6d0ab7c | 217 | * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh |
88a32c9a | 218 | * @orig: originator ethernet address |
7351a482 | 219 | * @ifinfo_list: list for routers per outgoing interface |
f3b3d901 | 220 | * @last_bonding_candidate: pointer to last ifinfo of last used router |
88a32c9a | 221 | * @batadv_dat_addr_t: address of the orig node in the distributed hash |
88a32c9a | 222 | * @last_seen: time when last packet from this node was received |
b6d0ab7c | 223 | * @bcast_seqno_reset: time when the broadcast seqno window was reset |
8a4023c5 | 224 | * @mcast_handler_lock: synchronizes mcast-capability and -flag changes |
60432d75 | 225 | * @mcast_flags: multicast flags announced by the orig node |
ab49886e LL |
226 | * @mcast_want_all_unsnoop_node: a list node for the |
227 | * mcast.want_all_unsnoopables list | |
4c8755d6 LL |
228 | * @mcast_want_all_ipv4_node: a list node for the mcast.want_all_ipv4 list |
229 | * @mcast_want_all_ipv6_node: a list node for the mcast.want_all_ipv6 list | |
17cf0ea4 | 230 | * @capabilities: announced capabilities of this originator |
e17931d1 | 231 | * @capa_initialized: bitfield to remember whether a capability was initialized |
88a32c9a | 232 | * @last_ttvn: last seen translation table version number |
88a32c9a ML |
233 | * @tt_buff: last tt changeset this node received from the orig node |
234 | * @tt_buff_len: length of the last tt changeset this node received from the | |
235 | * orig node | |
236 | * @tt_buff_lock: lock that protects tt_buff and tt_buff_len | |
a70a9aa9 AQ |
237 | * @tt_lock: prevents from updating the table while reading it. Table update is |
238 | * made up by two operations (data structure update and metdata -CRC/TTVN- | |
239 | * recalculation) and they have to be executed atomically in order to avoid | |
240 | * another thread to read the table/metadata between those. | |
88a32c9a ML |
241 | * @bcast_bits: bitfield containing the info which payload broadcast originated |
242 | * from this orig node this host already has seen (relative to | |
243 | * last_bcast_seqno) | |
b6d0ab7c | 244 | * @last_bcast_seqno: last broadcast sequence number received by this host |
88a32c9a | 245 | * @neigh_list: list of potential next hop neighbor towards this orig node |
f6c8b711 | 246 | * @neigh_list_lock: lock protecting neigh_list and router |
88a32c9a ML |
247 | * @hash_entry: hlist node for batadv_priv::orig_hash |
248 | * @bat_priv: pointer to soft_iface this orig node belongs to | |
88a32c9a | 249 | * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno |
88a32c9a ML |
250 | * @refcount: number of contexts the object is used |
251 | * @rcu: struct used for freeing in an RCU-safe manner | |
d56b1705 MH |
252 | * @in_coding_list: list of nodes this orig can hear |
253 | * @out_coding_list: list of nodes that can hear this orig | |
254 | * @in_coding_list_lock: protects in_coding_list | |
255 | * @out_coding_list_lock: protects out_coding_list | |
610bfc6b | 256 | * @fragments: array with heads for fragment chains |
7ea7b4a1 AQ |
257 | * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the |
258 | * originator represented by this object | |
259 | * @vlan_list_lock: lock protecting vlan_list | |
bbad0a5e | 260 | * @bat_iv: B.A.T.M.A.N. IV private structure |
c6c8fea2 | 261 | */ |
56303d34 | 262 | struct batadv_orig_node { |
c6c8fea2 | 263 | uint8_t orig[ETH_ALEN]; |
7351a482 | 264 | struct hlist_head ifinfo_list; |
f3b3d901 | 265 | struct batadv_orig_ifinfo *last_bonding_candidate; |
17224474 | 266 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 267 | batadv_dat_addr_t dat_addr; |
17224474 | 268 | #endif |
d7b2a97e | 269 | unsigned long last_seen; |
c6c8fea2 | 270 | unsigned long bcast_seqno_reset; |
60432d75 | 271 | #ifdef CONFIG_BATMAN_ADV_MCAST |
8a4023c5 LL |
272 | /* synchronizes mcast tvlv specific orig changes */ |
273 | spinlock_t mcast_handler_lock; | |
60432d75 | 274 | uint8_t mcast_flags; |
ab49886e | 275 | struct hlist_node mcast_want_all_unsnoopables_node; |
4c8755d6 LL |
276 | struct hlist_node mcast_want_all_ipv4_node; |
277 | struct hlist_node mcast_want_all_ipv6_node; | |
60432d75 | 278 | #endif |
65d7d460 | 279 | unsigned long capabilities; |
ac4eebd4 | 280 | unsigned long capa_initialized; |
88a32c9a | 281 | atomic_t last_ttvn; |
2dafb49d AQ |
282 | unsigned char *tt_buff; |
283 | int16_t tt_buff_len; | |
88a32c9a | 284 | spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */ |
a70a9aa9 AQ |
285 | /* prevents from changing the table while reading it */ |
286 | spinlock_t tt_lock; | |
42d0b044 | 287 | DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); |
c6c8fea2 | 288 | uint32_t last_bcast_seqno; |
9591a79f | 289 | struct hlist_head neigh_list; |
f6c8b711 | 290 | /* neigh_list_lock protects: neigh_list and router */ |
88a32c9a | 291 | spinlock_t neigh_list_lock; |
7aadf889 | 292 | struct hlist_node hash_entry; |
56303d34 | 293 | struct batadv_priv *bat_priv; |
88a32c9a | 294 | /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */ |
6e215fd8 | 295 | spinlock_t bcast_seqno_lock; |
88a32c9a ML |
296 | atomic_t refcount; |
297 | struct rcu_head rcu; | |
d56b1705 MH |
298 | #ifdef CONFIG_BATMAN_ADV_NC |
299 | struct list_head in_coding_list; | |
300 | struct list_head out_coding_list; | |
301 | spinlock_t in_coding_list_lock; /* Protects in_coding_list */ | |
302 | spinlock_t out_coding_list_lock; /* Protects out_coding_list */ | |
303 | #endif | |
610bfc6b | 304 | struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT]; |
7ea7b4a1 AQ |
305 | struct list_head vlan_list; |
306 | spinlock_t vlan_list_lock; /* protects vlan_list */ | |
bbad0a5e | 307 | struct batadv_orig_bat_iv bat_iv; |
c6c8fea2 SE |
308 | }; |
309 | ||
17cf0ea4 ML |
310 | /** |
311 | * enum batadv_orig_capabilities - orig node capabilities | |
312 | * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled | |
3f4841ff | 313 | * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled |
e17931d1 | 314 | * @BATADV_ORIG_CAPA_HAS_TT: orig node has tt capability |
60432d75 LL |
315 | * @BATADV_ORIG_CAPA_HAS_MCAST: orig node has some multicast capability |
316 | * (= orig node announces a tvlv of type BATADV_TVLV_MCAST) | |
17cf0ea4 ML |
317 | */ |
318 | enum batadv_orig_capabilities { | |
65d7d460 | 319 | BATADV_ORIG_CAPA_HAS_DAT, |
4635469f | 320 | BATADV_ORIG_CAPA_HAS_NC, |
ac4eebd4 | 321 | BATADV_ORIG_CAPA_HAS_TT, |
9c936e3f | 322 | BATADV_ORIG_CAPA_HAS_MCAST, |
17cf0ea4 ML |
323 | }; |
324 | ||
88a32c9a ML |
325 | /** |
326 | * struct batadv_gw_node - structure for orig nodes announcing gw capabilities | |
327 | * @list: list node for batadv_priv_gw::list | |
328 | * @orig_node: pointer to corresponding orig node | |
414254e3 ML |
329 | * @bandwidth_down: advertised uplink download bandwidth |
330 | * @bandwidth_up: advertised uplink upload bandwidth | |
88a32c9a ML |
331 | * @deleted: this struct is scheduled for deletion |
332 | * @refcount: number of contexts the object is used | |
333 | * @rcu: struct used for freeing in an RCU-safe manner | |
334 | */ | |
56303d34 | 335 | struct batadv_gw_node { |
c6c8fea2 | 336 | struct hlist_node list; |
56303d34 | 337 | struct batadv_orig_node *orig_node; |
414254e3 ML |
338 | uint32_t bandwidth_down; |
339 | uint32_t bandwidth_up; | |
c6c8fea2 | 340 | unsigned long deleted; |
25b6d3c1 | 341 | atomic_t refcount; |
c6c8fea2 SE |
342 | struct rcu_head rcu; |
343 | }; | |
344 | ||
88a32c9a | 345 | /** |
89652331 SW |
346 | * struct batadv_neigh_node - structure for single hops neighbors |
347 | * @list: list node for batadv_orig_node::neigh_list | |
348 | * @orig_node: pointer to corresponding orig_node | |
349 | * @addr: the MAC address of the neighboring interface | |
350 | * @ifinfo_list: list for routing metrics per outgoing interface | |
351 | * @ifinfo_lock: lock protecting private ifinfo members and list | |
352 | * @if_incoming: pointer to incoming hard interface | |
353 | * @last_seen: when last packet via this neighbor was received | |
354 | * @last_ttl: last received ttl from this neigh node | |
355 | * @rcu: struct used for freeing in an RCU-safe manner | |
356 | * @bat_iv: B.A.T.M.A.N. IV private structure | |
357 | */ | |
358 | struct batadv_neigh_node { | |
359 | struct hlist_node list; | |
360 | struct batadv_orig_node *orig_node; | |
361 | uint8_t addr[ETH_ALEN]; | |
362 | struct hlist_head ifinfo_list; | |
363 | spinlock_t ifinfo_lock; /* protects ifinfo_list and its members */ | |
364 | struct batadv_hard_iface *if_incoming; | |
365 | unsigned long last_seen; | |
366 | atomic_t refcount; | |
367 | struct rcu_head rcu; | |
368 | }; | |
369 | ||
1b371d13 | 370 | /** |
1a321b0d | 371 | * struct batadv_neigh_ifinfo_bat_iv - neighbor information per outgoing |
89652331 | 372 | * interface for BATMAN IV |
88a32c9a ML |
373 | * @tq_recv: ring buffer of received TQ values from this neigh node |
374 | * @tq_index: ring buffer index | |
375 | * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv) | |
88a32c9a ML |
376 | * @real_bits: bitfield containing the number of OGMs received from this neigh |
377 | * node (relative to orig_node->last_real_seqno) | |
378 | * @real_packet_count: counted result of real_bits | |
0538f759 | 379 | */ |
89652331 | 380 | struct batadv_neigh_ifinfo_bat_iv { |
0538f759 AQ |
381 | uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE]; |
382 | uint8_t tq_index; | |
383 | uint8_t tq_avg; | |
384 | DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE); | |
385 | uint8_t real_packet_count; | |
0538f759 AQ |
386 | }; |
387 | ||
1b371d13 SW |
388 | /** |
389 | * struct batadv_neigh_ifinfo - neighbor information per outgoing interface | |
89652331 SW |
390 | * @list: list node for batadv_neigh_node::ifinfo_list |
391 | * @if_outgoing: pointer to outgoing hard interface | |
392 | * @bat_iv: B.A.T.M.A.N. IV private structure | |
0538f759 | 393 | * @last_ttl: last received ttl from this neigh node |
88a32c9a | 394 | * @refcount: number of contexts the object is used |
89652331 | 395 | * @rcu: struct used for freeing in a RCU-safe manner |
c6c8fea2 | 396 | */ |
89652331 | 397 | struct batadv_neigh_ifinfo { |
9591a79f | 398 | struct hlist_node list; |
89652331 SW |
399 | struct batadv_hard_iface *if_outgoing; |
400 | struct batadv_neigh_ifinfo_bat_iv bat_iv; | |
c6c8fea2 | 401 | uint8_t last_ttl; |
88a32c9a ML |
402 | atomic_t refcount; |
403 | struct rcu_head rcu; | |
c6c8fea2 SE |
404 | }; |
405 | ||
88a32c9a ML |
406 | /** |
407 | * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression | |
408 | * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast | |
409 | * @crc: crc32 checksum of broadcast payload | |
410 | * @entrytime: time when the broadcast packet was received | |
411 | */ | |
7a5cc242 | 412 | #ifdef CONFIG_BATMAN_ADV_BLA |
56303d34 | 413 | struct batadv_bcast_duplist_entry { |
fe2da6ff | 414 | uint8_t orig[ETH_ALEN]; |
004e86fc | 415 | __be32 crc; |
fe2da6ff SW |
416 | unsigned long entrytime; |
417 | }; | |
7a5cc242 | 418 | #endif |
c6c8fea2 | 419 | |
88a32c9a ML |
420 | /** |
421 | * enum batadv_counters - indices for traffic counters | |
422 | * @BATADV_CNT_TX: transmitted payload traffic packet counter | |
423 | * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter | |
424 | * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter | |
425 | * @BATADV_CNT_RX: received payload traffic packet counter | |
426 | * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter | |
427 | * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter | |
428 | * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter | |
429 | * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter | |
430 | * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter | |
431 | * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter | |
432 | * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter | |
ee75ed88 MH |
433 | * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter |
434 | * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter | |
610bfc6b MH |
435 | * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter |
436 | * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter | |
437 | * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter | |
438 | * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter | |
88a32c9a ML |
439 | * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter |
440 | * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter | |
441 | * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter | |
442 | * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter | |
443 | * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter | |
444 | * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter | |
445 | * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter | |
446 | * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter | |
447 | * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter | |
448 | * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter | |
449 | * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet | |
450 | * counter | |
3c12de9a MH |
451 | * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter |
452 | * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter | |
453 | * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter | |
454 | * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter | |
612d2b4f | 455 | * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding |
2df5278b MH |
456 | * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter |
457 | * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter | |
458 | * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet | |
459 | * counter | |
460 | * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc | |
461 | * mode. | |
88a32c9a ML |
462 | * @BATADV_CNT_NUM: number of traffic counters |
463 | */ | |
d69909d2 | 464 | enum batadv_counters { |
1c9b0550 ML |
465 | BATADV_CNT_TX, |
466 | BATADV_CNT_TX_BYTES, | |
467 | BATADV_CNT_TX_DROPPED, | |
468 | BATADV_CNT_RX, | |
469 | BATADV_CNT_RX_BYTES, | |
d69909d2 SE |
470 | BATADV_CNT_FORWARD, |
471 | BATADV_CNT_FORWARD_BYTES, | |
472 | BATADV_CNT_MGMT_TX, | |
473 | BATADV_CNT_MGMT_TX_BYTES, | |
474 | BATADV_CNT_MGMT_RX, | |
475 | BATADV_CNT_MGMT_RX_BYTES, | |
ee75ed88 MH |
476 | BATADV_CNT_FRAG_TX, |
477 | BATADV_CNT_FRAG_TX_BYTES, | |
610bfc6b MH |
478 | BATADV_CNT_FRAG_RX, |
479 | BATADV_CNT_FRAG_RX_BYTES, | |
480 | BATADV_CNT_FRAG_FWD, | |
481 | BATADV_CNT_FRAG_FWD_BYTES, | |
d69909d2 SE |
482 | BATADV_CNT_TT_REQUEST_TX, |
483 | BATADV_CNT_TT_REQUEST_RX, | |
484 | BATADV_CNT_TT_RESPONSE_TX, | |
485 | BATADV_CNT_TT_RESPONSE_RX, | |
486 | BATADV_CNT_TT_ROAM_ADV_TX, | |
487 | BATADV_CNT_TT_ROAM_ADV_RX, | |
4046b24a MH |
488 | #ifdef CONFIG_BATMAN_ADV_DAT |
489 | BATADV_CNT_DAT_GET_TX, | |
490 | BATADV_CNT_DAT_GET_RX, | |
491 | BATADV_CNT_DAT_PUT_TX, | |
492 | BATADV_CNT_DAT_PUT_RX, | |
493 | BATADV_CNT_DAT_CACHED_REPLY_TX, | |
3c12de9a MH |
494 | #endif |
495 | #ifdef CONFIG_BATMAN_ADV_NC | |
496 | BATADV_CNT_NC_CODE, | |
497 | BATADV_CNT_NC_CODE_BYTES, | |
498 | BATADV_CNT_NC_RECODE, | |
499 | BATADV_CNT_NC_RECODE_BYTES, | |
612d2b4f | 500 | BATADV_CNT_NC_BUFFER, |
2df5278b MH |
501 | BATADV_CNT_NC_DECODE, |
502 | BATADV_CNT_NC_DECODE_BYTES, | |
503 | BATADV_CNT_NC_DECODE_FAILED, | |
504 | BATADV_CNT_NC_SNIFFED, | |
4046b24a | 505 | #endif |
d69909d2 | 506 | BATADV_CNT_NUM, |
f8214865 MH |
507 | }; |
508 | ||
807736f6 SE |
509 | /** |
510 | * struct batadv_priv_tt - per mesh interface translation table data | |
511 | * @vn: translation table version number | |
88a32c9a | 512 | * @ogm_append_cnt: counter of number of OGMs containing the local tt diff |
807736f6 | 513 | * @local_changes: changes registered in an originator interval |
807736f6 | 514 | * @changes_list: tracks tt local changes within an originator interval |
88a32c9a ML |
515 | * @local_hash: local translation table hash table |
516 | * @global_hash: global translation table hash table | |
517 | * @req_list: list of pending & unanswered tt_requests | |
518 | * @roam_list: list of the last roaming events of each client limiting the | |
519 | * number of roaming events to avoid route flapping | |
520 | * @changes_list_lock: lock protecting changes_list | |
521 | * @req_list_lock: lock protecting req_list | |
522 | * @roam_list_lock: lock protecting roam_list | |
88a32c9a ML |
523 | * @last_changeset: last tt changeset this host has generated |
524 | * @last_changeset_len: length of last tt changeset this host has generated | |
525 | * @last_changeset_lock: lock protecting last_changeset & last_changeset_len | |
a70a9aa9 AQ |
526 | * @commit_lock: prevents from executing a local TT commit while reading the |
527 | * local table. The local TT commit is made up by two operations (data | |
528 | * structure update and metdata -CRC/TTVN- recalculation) and they have to be | |
529 | * executed atomically in order to avoid another thread to read the | |
530 | * table/metadata between those. | |
88a32c9a | 531 | * @work: work queue callback item for translation table purging |
807736f6 SE |
532 | */ |
533 | struct batadv_priv_tt { | |
534 | atomic_t vn; | |
535 | atomic_t ogm_append_cnt; | |
536 | atomic_t local_changes; | |
807736f6 SE |
537 | struct list_head changes_list; |
538 | struct batadv_hashtable *local_hash; | |
539 | struct batadv_hashtable *global_hash; | |
540 | struct list_head req_list; | |
541 | struct list_head roam_list; | |
542 | spinlock_t changes_list_lock; /* protects changes */ | |
543 | spinlock_t req_list_lock; /* protects req_list */ | |
544 | spinlock_t roam_list_lock; /* protects roam_list */ | |
807736f6 SE |
545 | unsigned char *last_changeset; |
546 | int16_t last_changeset_len; | |
88a32c9a ML |
547 | /* protects last_changeset & last_changeset_len */ |
548 | spinlock_t last_changeset_lock; | |
a70a9aa9 AQ |
549 | /* prevents from executing a commit while reading the table */ |
550 | spinlock_t commit_lock; | |
807736f6 SE |
551 | struct delayed_work work; |
552 | }; | |
553 | ||
88a32c9a ML |
554 | /** |
555 | * struct batadv_priv_bla - per mesh interface bridge loope avoidance data | |
556 | * @num_requests; number of bla requests in flight | |
557 | * @claim_hash: hash table containing mesh nodes this host has claimed | |
558 | * @backbone_hash: hash table containing all detected backbone gateways | |
559 | * @bcast_duplist: recently received broadcast packets array (for broadcast | |
560 | * duplicate suppression) | |
561 | * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist | |
562 | * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr | |
563 | * @claim_dest: local claim data (e.g. claim group) | |
564 | * @work: work queue callback item for cleanups & bla announcements | |
565 | */ | |
807736f6 SE |
566 | #ifdef CONFIG_BATMAN_ADV_BLA |
567 | struct batadv_priv_bla { | |
88a32c9a | 568 | atomic_t num_requests; |
807736f6 SE |
569 | struct batadv_hashtable *claim_hash; |
570 | struct batadv_hashtable *backbone_hash; | |
571 | struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE]; | |
572 | int bcast_duplist_curr; | |
88a32c9a | 573 | /* protects bcast_duplist & bcast_duplist_curr */ |
7dac7b76 | 574 | spinlock_t bcast_duplist_lock; |
807736f6 SE |
575 | struct batadv_bla_claim_dst claim_dest; |
576 | struct delayed_work work; | |
577 | }; | |
578 | #endif | |
579 | ||
88a32c9a | 580 | /** |
1a321b0d | 581 | * struct batadv_priv_debug_log - debug logging data |
88a32c9a ML |
582 | * @log_buff: buffer holding the logs (ring bufer) |
583 | * @log_start: index of next character to read | |
584 | * @log_end: index of next character to write | |
585 | * @lock: lock protecting log_buff, log_start & log_end | |
586 | * @queue_wait: log reader's wait queue | |
587 | */ | |
0abf5d81 ML |
588 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
589 | struct batadv_priv_debug_log { | |
590 | char log_buff[BATADV_LOG_BUF_LEN]; | |
591 | unsigned long log_start; | |
592 | unsigned long log_end; | |
593 | spinlock_t lock; /* protects log_buff, log_start and log_end */ | |
594 | wait_queue_head_t queue_wait; | |
595 | }; | |
596 | #endif | |
597 | ||
88a32c9a ML |
598 | /** |
599 | * struct batadv_priv_gw - per mesh interface gateway data | |
600 | * @list: list of available gateway nodes | |
601 | * @list_lock: lock protecting gw_list & curr_gw | |
602 | * @curr_gw: pointer to currently selected gateway node | |
414254e3 ML |
603 | * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server) |
604 | * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server) | |
88a32c9a ML |
605 | * @reselect: bool indicating a gateway re-selection is in progress |
606 | */ | |
807736f6 SE |
607 | struct batadv_priv_gw { |
608 | struct hlist_head list; | |
88a32c9a | 609 | spinlock_t list_lock; /* protects gw_list & curr_gw */ |
807736f6 | 610 | struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */ |
414254e3 ML |
611 | atomic_t bandwidth_down; |
612 | atomic_t bandwidth_up; | |
807736f6 SE |
613 | atomic_t reselect; |
614 | }; | |
615 | ||
ef261577 ML |
616 | /** |
617 | * struct batadv_priv_tvlv - per mesh interface tvlv data | |
618 | * @container_list: list of registered tvlv containers to be sent with each OGM | |
619 | * @handler_list: list of the various tvlv content handlers | |
620 | * @container_list_lock: protects tvlv container list access | |
621 | * @handler_list_lock: protects handler list access | |
622 | */ | |
623 | struct batadv_priv_tvlv { | |
624 | struct hlist_head container_list; | |
625 | struct hlist_head handler_list; | |
626 | spinlock_t container_list_lock; /* protects container_list */ | |
627 | spinlock_t handler_list_lock; /* protects handler_list */ | |
628 | }; | |
629 | ||
785ea114 AQ |
630 | /** |
631 | * struct batadv_priv_dat - per mesh interface DAT private data | |
632 | * @addr: node DAT address | |
2f1dfbe1 AQ |
633 | * @hash: hashtable representing the local ARP cache |
634 | * @work: work queue callback item for cache purging | |
785ea114 | 635 | */ |
17224474 | 636 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 AQ |
637 | struct batadv_priv_dat { |
638 | batadv_dat_addr_t addr; | |
2f1dfbe1 AQ |
639 | struct batadv_hashtable *hash; |
640 | struct delayed_work work; | |
785ea114 | 641 | }; |
17224474 | 642 | #endif |
785ea114 | 643 | |
c5caf4ef LL |
644 | #ifdef CONFIG_BATMAN_ADV_MCAST |
645 | /** | |
646 | * struct batadv_priv_mcast - per mesh interface mcast data | |
647 | * @mla_list: list of multicast addresses we are currently announcing via TT | |
ab49886e LL |
648 | * @want_all_unsnoopables_list: a list of orig_nodes wanting all unsnoopable |
649 | * multicast traffic | |
4c8755d6 LL |
650 | * @want_all_ipv4_list: a list of orig_nodes wanting all IPv4 multicast traffic |
651 | * @want_all_ipv6_list: a list of orig_nodes wanting all IPv6 multicast traffic | |
60432d75 LL |
652 | * @flags: the flags we have last sent in our mcast tvlv |
653 | * @enabled: whether the multicast tvlv is currently enabled | |
654 | * @num_disabled: number of nodes that have no mcast tvlv | |
ab49886e | 655 | * @num_want_all_unsnoopables: number of nodes wanting unsnoopable IP traffic |
4c8755d6 LL |
656 | * @num_want_all_ipv4: counter for items in want_all_ipv4_list |
657 | * @num_want_all_ipv6: counter for items in want_all_ipv6_list | |
ab49886e LL |
658 | * @want_lists_lock: lock for protecting modifications to mcast want lists |
659 | * (traversals are rcu-locked) | |
c5caf4ef LL |
660 | */ |
661 | struct batadv_priv_mcast { | |
662 | struct hlist_head mla_list; | |
ab49886e | 663 | struct hlist_head want_all_unsnoopables_list; |
4c8755d6 LL |
664 | struct hlist_head want_all_ipv4_list; |
665 | struct hlist_head want_all_ipv6_list; | |
60432d75 LL |
666 | uint8_t flags; |
667 | bool enabled; | |
668 | atomic_t num_disabled; | |
ab49886e | 669 | atomic_t num_want_all_unsnoopables; |
4c8755d6 LL |
670 | atomic_t num_want_all_ipv4; |
671 | atomic_t num_want_all_ipv6; | |
672 | /* protects want_all_{unsnoopables,ipv4,ipv6}_list */ | |
ab49886e | 673 | spinlock_t want_lists_lock; |
c5caf4ef LL |
674 | }; |
675 | #endif | |
676 | ||
d353d8d4 MH |
677 | /** |
678 | * struct batadv_priv_nc - per mesh interface network coding private data | |
679 | * @work: work queue callback item for cleanup | |
d56b1705 MH |
680 | * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs |
681 | * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq | |
95332477 | 682 | * @max_fwd_delay: maximum packet forward delay to allow coding of packets |
612d2b4f | 683 | * @max_buffer_time: buffer time for sniffed packets used to decoding |
95332477 | 684 | * @timestamp_fwd_flush: timestamp of last forward packet queue flush |
612d2b4f | 685 | * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge |
95332477 MH |
686 | * @coding_hash: Hash table used to buffer skbs while waiting for another |
687 | * incoming skb to code it with. Skbs are added to the buffer just before being | |
688 | * forwarded in routing.c | |
612d2b4f MH |
689 | * @decoding_hash: Hash table used to buffer skbs that might be needed to decode |
690 | * a received coded skb. The buffer is used for 1) skbs arriving on the | |
691 | * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs | |
692 | * forwarded by batman-adv. | |
d353d8d4 MH |
693 | */ |
694 | struct batadv_priv_nc { | |
695 | struct delayed_work work; | |
d56b1705 MH |
696 | struct dentry *debug_dir; |
697 | u8 min_tq; | |
95332477 | 698 | u32 max_fwd_delay; |
612d2b4f | 699 | u32 max_buffer_time; |
95332477 | 700 | unsigned long timestamp_fwd_flush; |
612d2b4f | 701 | unsigned long timestamp_sniffed_purge; |
95332477 | 702 | struct batadv_hashtable *coding_hash; |
612d2b4f | 703 | struct batadv_hashtable *decoding_hash; |
d353d8d4 MH |
704 | }; |
705 | ||
5d2c05b2 AQ |
706 | /** |
707 | * struct batadv_softif_vlan - per VLAN attributes set | |
35df3b29 | 708 | * @bat_priv: pointer to the mesh object |
5d2c05b2 AQ |
709 | * @vid: VLAN identifier |
710 | * @kobj: kobject for sysfs vlan subdirectory | |
b8cbd81d | 711 | * @ap_isolation: AP isolation state |
7ea7b4a1 | 712 | * @tt: TT private attributes (VLAN specific) |
5d2c05b2 AQ |
713 | * @list: list node for bat_priv::softif_vlan_list |
714 | * @refcount: number of context where this object is currently in use | |
715 | * @rcu: struct used for freeing in a RCU-safe manner | |
716 | */ | |
717 | struct batadv_softif_vlan { | |
35df3b29 | 718 | struct batadv_priv *bat_priv; |
5d2c05b2 AQ |
719 | unsigned short vid; |
720 | struct kobject *kobj; | |
b8cbd81d | 721 | atomic_t ap_isolation; /* boolean */ |
7ea7b4a1 | 722 | struct batadv_vlan_tt tt; |
5d2c05b2 AQ |
723 | struct hlist_node list; |
724 | atomic_t refcount; | |
725 | struct rcu_head rcu; | |
726 | }; | |
727 | ||
88a32c9a ML |
728 | /** |
729 | * struct batadv_priv - per mesh interface data | |
730 | * @mesh_state: current status of the mesh (inactive/active/deactivating) | |
5bc44dc8 | 731 | * @soft_iface: net device which holds this struct as private data |
88a32c9a ML |
732 | * @stats: structure holding the data for the ndo_get_stats() call |
733 | * @bat_counters: mesh internal traffic statistic counters (see batadv_counters) | |
734 | * @aggregated_ogms: bool indicating whether OGM aggregation is enabled | |
735 | * @bonding: bool indicating whether traffic bonding is enabled | |
736 | * @fragmentation: bool indicating whether traffic fragmentation is enabled | |
a19d3d85 ML |
737 | * @packet_size_max: max packet size that can be transmitted via |
738 | * multiple fragmented skbs or a single frame if fragmentation is disabled | |
ee75ed88 | 739 | * @frag_seqno: incremental counter to identify chains of egress fragments |
88a32c9a ML |
740 | * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is |
741 | * enabled | |
742 | * @distributed_arp_table: bool indicating whether distributed ARP table is | |
743 | * enabled | |
1d8ab8d3 LL |
744 | * @multicast_mode: Enable or disable multicast optimizations on this node's |
745 | * sender/originating side | |
88a32c9a ML |
746 | * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes) |
747 | * @gw_sel_class: gateway selection class (applies if gw_mode client) | |
88a32c9a ML |
748 | * @orig_interval: OGM broadcast interval in milliseconds |
749 | * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop | |
750 | * @log_level: configured log level (see batadv_dbg_level) | |
751 | * @bcast_seqno: last sent broadcast packet sequence number | |
752 | * @bcast_queue_left: number of remaining buffered broadcast packet slots | |
753 | * @batman_queue_left: number of remaining OGM packet slots | |
754 | * @num_ifaces: number of interfaces assigned to this mesh interface | |
755 | * @mesh_obj: kobject for sysfs mesh subdirectory | |
756 | * @debug_dir: dentry for debugfs batman-adv subdirectory | |
757 | * @forw_bat_list: list of aggregated OGMs that will be forwarded | |
758 | * @forw_bcast_list: list of broadcast packets that will be rebroadcasted | |
759 | * @orig_hash: hash table containing mesh participants (orig nodes) | |
760 | * @forw_bat_list_lock: lock protecting forw_bat_list | |
761 | * @forw_bcast_list_lock: lock protecting forw_bcast_list | |
762 | * @orig_work: work queue callback item for orig node purging | |
5bc44dc8 | 763 | * @cleanup_work: work queue callback item for soft interface deinit |
88a32c9a ML |
764 | * @primary_if: one of the hard interfaces assigned to this mesh interface |
765 | * becomes the primary interface | |
766 | * @bat_algo_ops: routing algorithm used by this mesh interface | |
5d2c05b2 AQ |
767 | * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top |
768 | * of the mesh interface represented by this object | |
769 | * @softif_vlan_list_lock: lock protecting softif_vlan_list | |
88a32c9a ML |
770 | * @bla: bridge loope avoidance data |
771 | * @debug_log: holding debug logging relevant data | |
772 | * @gw: gateway data | |
773 | * @tt: translation table data | |
ef261577 | 774 | * @tvlv: type-version-length-value data |
88a32c9a | 775 | * @dat: distributed arp table data |
c5caf4ef | 776 | * @mcast: multicast data |
d353d8d4 MH |
777 | * @network_coding: bool indicating whether network coding is enabled |
778 | * @batadv_priv_nc: network coding data | |
88a32c9a | 779 | */ |
56303d34 | 780 | struct batadv_priv { |
c6c8fea2 | 781 | atomic_t mesh_state; |
5bc44dc8 | 782 | struct net_device *soft_iface; |
c6c8fea2 | 783 | struct net_device_stats stats; |
f8214865 | 784 | uint64_t __percpu *bat_counters; /* Per cpu counters */ |
88a32c9a ML |
785 | atomic_t aggregated_ogms; |
786 | atomic_t bonding; | |
787 | atomic_t fragmentation; | |
a19d3d85 | 788 | atomic_t packet_size_max; |
ee75ed88 | 789 | atomic_t frag_seqno; |
fa706554 | 790 | #ifdef CONFIG_BATMAN_ADV_BLA |
88a32c9a | 791 | atomic_t bridge_loop_avoidance; |
fa706554 | 792 | #endif |
33af49ad | 793 | #ifdef CONFIG_BATMAN_ADV_DAT |
88a32c9a | 794 | atomic_t distributed_arp_table; |
1d8ab8d3 LL |
795 | #endif |
796 | #ifdef CONFIG_BATMAN_ADV_MCAST | |
797 | atomic_t multicast_mode; | |
33af49ad | 798 | #endif |
88a32c9a ML |
799 | atomic_t gw_mode; |
800 | atomic_t gw_sel_class; | |
88a32c9a ML |
801 | atomic_t orig_interval; |
802 | atomic_t hop_penalty; | |
0c430d0d | 803 | #ifdef CONFIG_BATMAN_ADV_DEBUG |
88a32c9a | 804 | atomic_t log_level; |
0c430d0d | 805 | #endif |
c42edfe3 AQ |
806 | uint32_t isolation_mark; |
807 | uint32_t isolation_mark_mask; | |
c6c8fea2 SE |
808 | atomic_t bcast_seqno; |
809 | atomic_t bcast_queue_left; | |
810 | atomic_t batman_queue_left; | |
811 | char num_ifaces; | |
c6c8fea2 SE |
812 | struct kobject *mesh_obj; |
813 | struct dentry *debug_dir; | |
814 | struct hlist_head forw_bat_list; | |
815 | struct hlist_head forw_bcast_list; | |
5bf74e9c | 816 | struct batadv_hashtable *orig_hash; |
c6c8fea2 | 817 | spinlock_t forw_bat_list_lock; /* protects forw_bat_list */ |
a7528f8d | 818 | spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */ |
c6c8fea2 | 819 | struct delayed_work orig_work; |
5bc44dc8 | 820 | struct work_struct cleanup_work; |
56303d34 | 821 | struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */ |
56303d34 | 822 | struct batadv_algo_ops *bat_algo_ops; |
5d2c05b2 AQ |
823 | struct hlist_head softif_vlan_list; |
824 | spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */ | |
807736f6 SE |
825 | #ifdef CONFIG_BATMAN_ADV_BLA |
826 | struct batadv_priv_bla bla; | |
0abf5d81 ML |
827 | #endif |
828 | #ifdef CONFIG_BATMAN_ADV_DEBUG | |
829 | struct batadv_priv_debug_log *debug_log; | |
807736f6 SE |
830 | #endif |
831 | struct batadv_priv_gw gw; | |
832 | struct batadv_priv_tt tt; | |
ef261577 | 833 | struct batadv_priv_tvlv tvlv; |
17224474 | 834 | #ifdef CONFIG_BATMAN_ADV_DAT |
785ea114 | 835 | struct batadv_priv_dat dat; |
17224474 | 836 | #endif |
c5caf4ef LL |
837 | #ifdef CONFIG_BATMAN_ADV_MCAST |
838 | struct batadv_priv_mcast mcast; | |
839 | #endif | |
d353d8d4 MH |
840 | #ifdef CONFIG_BATMAN_ADV_NC |
841 | atomic_t network_coding; | |
842 | struct batadv_priv_nc nc; | |
843 | #endif /* CONFIG_BATMAN_ADV_NC */ | |
c6c8fea2 SE |
844 | }; |
845 | ||
88a32c9a ML |
846 | /** |
847 | * struct batadv_socket_client - layer2 icmp socket client data | |
848 | * @queue_list: packet queue for packets destined for this socket client | |
849 | * @queue_len: number of packets in the packet queue (queue_list) | |
850 | * @index: socket client's index in the batadv_socket_client_hash | |
851 | * @lock: lock protecting queue_list, queue_len & index | |
852 | * @queue_wait: socket client's wait queue | |
853 | * @bat_priv: pointer to soft_iface this client belongs to | |
854 | */ | |
56303d34 | 855 | struct batadv_socket_client { |
c6c8fea2 SE |
856 | struct list_head queue_list; |
857 | unsigned int queue_len; | |
858 | unsigned char index; | |
88a32c9a | 859 | spinlock_t lock; /* protects queue_list, queue_len & index */ |
c6c8fea2 | 860 | wait_queue_head_t queue_wait; |
56303d34 | 861 | struct batadv_priv *bat_priv; |
c6c8fea2 SE |
862 | }; |
863 | ||
88a32c9a ML |
864 | /** |
865 | * struct batadv_socket_packet - layer2 icmp packet for socket client | |
866 | * @list: list node for batadv_socket_client::queue_list | |
867 | * @icmp_len: size of the layer2 icmp packet | |
868 | * @icmp_packet: layer2 icmp packet | |
869 | */ | |
56303d34 | 870 | struct batadv_socket_packet { |
c6c8fea2 SE |
871 | struct list_head list; |
872 | size_t icmp_len; | |
da6b8c20 | 873 | uint8_t icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE]; |
c6c8fea2 SE |
874 | }; |
875 | ||
88a32c9a ML |
876 | /** |
877 | * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN | |
878 | * @orig: originator address of backbone node (mac address of primary iface) | |
879 | * @vid: vlan id this gateway was detected on | |
880 | * @hash_entry: hlist node for batadv_priv_bla::backbone_hash | |
881 | * @bat_priv: pointer to soft_iface this backbone gateway belongs to | |
882 | * @lasttime: last time we heard of this backbone gw | |
883 | * @wait_periods: grace time for bridge forward delays and bla group forming at | |
884 | * bootup phase - no bcast traffic is formwared until it has elapsed | |
885 | * @request_sent: if this bool is set to true we are out of sync with this | |
886 | * backbone gateway - no bcast traffic is formwared until the situation was | |
887 | * resolved | |
888 | * @crc: crc16 checksum over all claims | |
889 | * @refcount: number of contexts the object is used | |
890 | * @rcu: struct used for freeing in an RCU-safe manner | |
891 | */ | |
2006fea8 | 892 | #ifdef CONFIG_BATMAN_ADV_BLA |
bae98774 | 893 | struct batadv_bla_backbone_gw { |
2006fea8 | 894 | uint8_t orig[ETH_ALEN]; |
eb2deb6b | 895 | unsigned short vid; |
2006fea8 ML |
896 | struct hlist_node hash_entry; |
897 | struct batadv_priv *bat_priv; | |
88a32c9a | 898 | unsigned long lasttime; |
2006fea8 ML |
899 | atomic_t wait_periods; |
900 | atomic_t request_sent; | |
88a32c9a | 901 | uint16_t crc; |
2006fea8 ML |
902 | atomic_t refcount; |
903 | struct rcu_head rcu; | |
2006fea8 ML |
904 | }; |
905 | ||
88a32c9a ML |
906 | /** |
907 | * struct batadv_bla_claim - claimed non-mesh client structure | |
908 | * @addr: mac address of claimed non-mesh client | |
909 | * @vid: vlan id this client was detected on | |
910 | * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client | |
911 | * @lasttime: last time we heard of claim (locals only) | |
912 | * @hash_entry: hlist node for batadv_priv_bla::claim_hash | |
913 | * @refcount: number of contexts the object is used | |
914 | * @rcu: struct used for freeing in an RCU-safe manner | |
915 | */ | |
712bbfe4 | 916 | struct batadv_bla_claim { |
2006fea8 | 917 | uint8_t addr[ETH_ALEN]; |
eb2deb6b | 918 | unsigned short vid; |
bae98774 | 919 | struct batadv_bla_backbone_gw *backbone_gw; |
88a32c9a ML |
920 | unsigned long lasttime; |
921 | struct hlist_node hash_entry; | |
2006fea8 ML |
922 | struct rcu_head rcu; |
923 | atomic_t refcount; | |
2006fea8 ML |
924 | }; |
925 | #endif | |
926 | ||
88a32c9a ML |
927 | /** |
928 | * struct batadv_tt_common_entry - tt local & tt global common data | |
929 | * @addr: mac address of non-mesh client | |
c018ad3d | 930 | * @vid: VLAN identifier |
88a32c9a ML |
931 | * @hash_entry: hlist node for batadv_priv_tt::local_hash or for |
932 | * batadv_priv_tt::global_hash | |
933 | * @flags: various state handling flags (see batadv_tt_client_flags) | |
934 | * @added_at: timestamp used for purging stale tt common entries | |
935 | * @refcount: number of contexts the object is used | |
936 | * @rcu: struct used for freeing in an RCU-safe manner | |
937 | */ | |
56303d34 | 938 | struct batadv_tt_common_entry { |
c6c8fea2 | 939 | uint8_t addr[ETH_ALEN]; |
c018ad3d | 940 | unsigned short vid; |
93840ac4 | 941 | struct hlist_node hash_entry; |
5fbc1598 | 942 | uint16_t flags; |
30cfd02b | 943 | unsigned long added_at; |
7683fdc1 AQ |
944 | atomic_t refcount; |
945 | struct rcu_head rcu; | |
c6c8fea2 SE |
946 | }; |
947 | ||
88a32c9a ML |
948 | /** |
949 | * struct batadv_tt_local_entry - translation table local entry data | |
950 | * @common: general translation table data | |
951 | * @last_seen: timestamp used for purging stale tt local entries | |
952 | */ | |
56303d34 SE |
953 | struct batadv_tt_local_entry { |
954 | struct batadv_tt_common_entry common; | |
48100bac AQ |
955 | unsigned long last_seen; |
956 | }; | |
957 | ||
88a32c9a ML |
958 | /** |
959 | * struct batadv_tt_global_entry - translation table global entry data | |
960 | * @common: general translation table data | |
961 | * @orig_list: list of orig nodes announcing this non-mesh client | |
1d8ab8d3 | 962 | * @orig_list_count: number of items in the orig_list |
88a32c9a ML |
963 | * @list_lock: lock protecting orig_list |
964 | * @roam_at: time at which TT_GLOBAL_ROAM was set | |
965 | */ | |
56303d34 SE |
966 | struct batadv_tt_global_entry { |
967 | struct batadv_tt_common_entry common; | |
db08e6e5 | 968 | struct hlist_head orig_list; |
1d8ab8d3 | 969 | atomic_t orig_list_count; |
88a32c9a ML |
970 | spinlock_t list_lock; /* protects orig_list */ |
971 | unsigned long roam_at; | |
db08e6e5 SW |
972 | }; |
973 | ||
88a32c9a ML |
974 | /** |
975 | * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client | |
976 | * @orig_node: pointer to orig node announcing this non-mesh client | |
977 | * @ttvn: translation table version number which added the non-mesh client | |
978 | * @list: list node for batadv_tt_global_entry::orig_list | |
979 | * @refcount: number of contexts the object is used | |
980 | * @rcu: struct used for freeing in an RCU-safe manner | |
981 | */ | |
56303d34 SE |
982 | struct batadv_tt_orig_list_entry { |
983 | struct batadv_orig_node *orig_node; | |
a73105b8 | 984 | uint8_t ttvn; |
88a32c9a | 985 | struct hlist_node list; |
d657e621 | 986 | atomic_t refcount; |
db08e6e5 | 987 | struct rcu_head rcu; |
c6c8fea2 SE |
988 | }; |
989 | ||
88a32c9a | 990 | /** |
3f68785e | 991 | * struct batadv_tt_change_node - structure for tt changes occurred |
88a32c9a ML |
992 | * @list: list node for batadv_priv_tt::changes_list |
993 | * @change: holds the actual translation table diff data | |
994 | */ | |
56303d34 | 995 | struct batadv_tt_change_node { |
a73105b8 | 996 | struct list_head list; |
e1bf0c14 | 997 | struct batadv_tvlv_tt_change change; |
a73105b8 AQ |
998 | }; |
999 | ||
88a32c9a ML |
1000 | /** |
1001 | * struct batadv_tt_req_node - data to keep track of the tt requests in flight | |
1002 | * @addr: mac address address of the originator this request was sent to | |
1003 | * @issued_at: timestamp used for purging stale tt requests | |
1004 | * @list: list node for batadv_priv_tt::req_list | |
1005 | */ | |
56303d34 | 1006 | struct batadv_tt_req_node { |
a73105b8 AQ |
1007 | uint8_t addr[ETH_ALEN]; |
1008 | unsigned long issued_at; | |
1009 | struct list_head list; | |
1010 | }; | |
1011 | ||
88a32c9a ML |
1012 | /** |
1013 | * struct batadv_tt_roam_node - roaming client data | |
1014 | * @addr: mac address of the client in the roaming phase | |
1015 | * @counter: number of allowed roaming events per client within a single | |
1016 | * OGM interval (changes are committed with each OGM) | |
1017 | * @first_time: timestamp used for purging stale roaming node entries | |
1018 | * @list: list node for batadv_priv_tt::roam_list | |
1019 | */ | |
56303d34 | 1020 | struct batadv_tt_roam_node { |
cc47f66e AQ |
1021 | uint8_t addr[ETH_ALEN]; |
1022 | atomic_t counter; | |
1023 | unsigned long first_time; | |
1024 | struct list_head list; | |
1025 | }; | |
1026 | ||
d56b1705 MH |
1027 | /** |
1028 | * struct batadv_nc_node - network coding node | |
1029 | * @list: next and prev pointer for the list handling | |
1030 | * @addr: the node's mac address | |
1031 | * @refcount: number of contexts the object is used by | |
1032 | * @rcu: struct used for freeing in an RCU-safe manner | |
1033 | * @orig_node: pointer to corresponding orig node struct | |
1034 | * @last_seen: timestamp of last ogm received from this node | |
1035 | */ | |
1036 | struct batadv_nc_node { | |
1037 | struct list_head list; | |
1038 | uint8_t addr[ETH_ALEN]; | |
1039 | atomic_t refcount; | |
1040 | struct rcu_head rcu; | |
1041 | struct batadv_orig_node *orig_node; | |
1042 | unsigned long last_seen; | |
1043 | }; | |
1044 | ||
95332477 MH |
1045 | /** |
1046 | * struct batadv_nc_path - network coding path | |
1047 | * @hash_entry: next and prev pointer for the list handling | |
1048 | * @rcu: struct used for freeing in an RCU-safe manner | |
1049 | * @refcount: number of contexts the object is used by | |
1050 | * @packet_list: list of buffered packets for this path | |
1051 | * @packet_list_lock: access lock for packet list | |
1052 | * @next_hop: next hop (destination) of path | |
1053 | * @prev_hop: previous hop (source) of path | |
1054 | * @last_valid: timestamp for last validation of path | |
1055 | */ | |
1056 | struct batadv_nc_path { | |
1057 | struct hlist_node hash_entry; | |
1058 | struct rcu_head rcu; | |
1059 | atomic_t refcount; | |
1060 | struct list_head packet_list; | |
1061 | spinlock_t packet_list_lock; /* Protects packet_list */ | |
1062 | uint8_t next_hop[ETH_ALEN]; | |
1063 | uint8_t prev_hop[ETH_ALEN]; | |
1064 | unsigned long last_valid; | |
1065 | }; | |
1066 | ||
1067 | /** | |
1068 | * struct batadv_nc_packet - network coding packet used when coding and | |
1069 | * decoding packets | |
1070 | * @list: next and prev pointer for the list handling | |
1071 | * @packet_id: crc32 checksum of skb data | |
1072 | * @timestamp: field containing the info when the packet was added to path | |
1073 | * @neigh_node: pointer to original next hop neighbor of skb | |
1074 | * @skb: skb which can be encoded or used for decoding | |
1075 | * @nc_path: pointer to path this nc packet is attached to | |
1076 | */ | |
1077 | struct batadv_nc_packet { | |
1078 | struct list_head list; | |
1079 | __be32 packet_id; | |
1080 | unsigned long timestamp; | |
1081 | struct batadv_neigh_node *neigh_node; | |
1082 | struct sk_buff *skb; | |
1083 | struct batadv_nc_path *nc_path; | |
1084 | }; | |
1085 | ||
3c12de9a | 1086 | /** |
1a321b0d SW |
1087 | * struct batadv_skb_cb - control buffer structure used to store private data |
1088 | * relevant to batman-adv in the skb->cb buffer in skbs. | |
3c12de9a MH |
1089 | * @decoded: Marks a skb as decoded, which is checked when searching for coding |
1090 | * opportunities in network-coding.c | |
1091 | */ | |
1092 | struct batadv_skb_cb { | |
1093 | bool decoded; | |
1094 | }; | |
1095 | ||
88a32c9a ML |
1096 | /** |
1097 | * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded | |
1098 | * @list: list node for batadv_socket_client::queue_list | |
1099 | * @send_time: execution time for delayed_work (packet sending) | |
1100 | * @own: bool for locally generated packets (local OGMs are re-scheduled after | |
1101 | * sending) | |
1102 | * @skb: bcast packet's skb buffer | |
1103 | * @packet_len: size of aggregated OGM packet inside the skb buffer | |
1104 | * @direct_link_flags: direct link flags for aggregated OGM packets | |
1105 | * @num_packets: counter for bcast packet retransmission | |
1106 | * @delayed_work: work queue callback item for packet sending | |
ef0a937f SW |
1107 | * @if_incoming: pointer to incoming hard-iface or primary iface if |
1108 | * locally generated packet | |
1109 | * @if_outgoing: packet where the packet should be sent to, or NULL if | |
1110 | * unspecified | |
c6c8fea2 | 1111 | */ |
56303d34 | 1112 | struct batadv_forw_packet { |
c6c8fea2 SE |
1113 | struct hlist_node list; |
1114 | unsigned long send_time; | |
1115 | uint8_t own; | |
1116 | struct sk_buff *skb; | |
1117 | uint16_t packet_len; | |
1118 | uint32_t direct_link_flags; | |
1119 | uint8_t num_packets; | |
1120 | struct delayed_work delayed_work; | |
56303d34 | 1121 | struct batadv_hard_iface *if_incoming; |
ef0a937f | 1122 | struct batadv_hard_iface *if_outgoing; |
c6c8fea2 SE |
1123 | }; |
1124 | ||
88a32c9a ML |
1125 | /** |
1126 | * struct batadv_algo_ops - mesh algorithm callbacks | |
1127 | * @list: list node for the batadv_algo_list | |
1128 | * @name: name of the algorithm | |
1129 | * @bat_iface_enable: init routing info when hard-interface is enabled | |
1130 | * @bat_iface_disable: de-init routing info when hard-interface is disabled | |
1131 | * @bat_iface_update_mac: (re-)init mac addresses of the protocol information | |
1132 | * belonging to this hard-interface | |
1133 | * @bat_primary_iface_set: called when primary interface is selected / changed | |
1134 | * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue | |
1135 | * @bat_ogm_emit: send scheduled OGM | |
89652331 SW |
1136 | * @bat_neigh_cmp: compare the metrics of two neighbors for their respective |
1137 | * outgoing interfaces | |
1138 | * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or better | |
1139 | * than neigh2 for their respective outgoing interface from the metric | |
1140 | * prospective | |
bcef1f3c AQ |
1141 | * @bat_neigh_free: free the resources allocated by the routing algorithm for a |
1142 | * neigh_node object | |
737a2a22 | 1143 | * @bat_orig_print: print the originator table (optional) |
d0015fdd AQ |
1144 | * @bat_orig_free: free the resources allocated by the routing algorithm for an |
1145 | * orig_node object | |
1146 | * @bat_orig_add_if: ask the routing algorithm to apply the needed changes to | |
1147 | * the orig_node due to a new hard-interface being added into the mesh | |
1148 | * @bat_orig_del_if: ask the routing algorithm to apply the needed changes to | |
1149 | * the orig_node due to an hard-interface being removed from the mesh | |
88a32c9a | 1150 | */ |
56303d34 | 1151 | struct batadv_algo_ops { |
1c280471 ML |
1152 | struct hlist_node list; |
1153 | char *name; | |
56303d34 | 1154 | int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1155 | void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1156 | void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1157 | void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1158 | void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface); |
56303d34 | 1159 | void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet); |
bcef1f3c | 1160 | /* neigh_node handling API */ |
a3285a8f | 1161 | int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1, |
89652331 SW |
1162 | struct batadv_hard_iface *if_outgoing1, |
1163 | struct batadv_neigh_node *neigh2, | |
1164 | struct batadv_hard_iface *if_outgoing2); | |
1165 | bool (*bat_neigh_is_equiv_or_better) | |
1166 | (struct batadv_neigh_node *neigh1, | |
1167 | struct batadv_hard_iface *if_outgoing1, | |
1168 | struct batadv_neigh_node *neigh2, | |
1169 | struct batadv_hard_iface *if_outgoing2); | |
bcef1f3c | 1170 | void (*bat_neigh_free)(struct batadv_neigh_node *neigh); |
737a2a22 | 1171 | /* orig_node handling API */ |
cb1c92ec SW |
1172 | void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq, |
1173 | struct batadv_hard_iface *hard_iface); | |
d0015fdd AQ |
1174 | void (*bat_orig_free)(struct batadv_orig_node *orig_node); |
1175 | int (*bat_orig_add_if)(struct batadv_orig_node *orig_node, | |
1176 | int max_if_num); | |
1177 | int (*bat_orig_del_if)(struct batadv_orig_node *orig_node, | |
1178 | int max_if_num, int del_if_num); | |
1c280471 ML |
1179 | }; |
1180 | ||
2f1dfbe1 AQ |
1181 | /** |
1182 | * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It | |
1183 | * is used to stored ARP entries needed for the global DAT cache | |
1184 | * @ip: the IPv4 corresponding to this DAT/ARP entry | |
1185 | * @mac_addr: the MAC address associated to the stored IPv4 | |
be1db4f6 | 1186 | * @vid: the vlan ID associated to this entry |
2f1dfbe1 AQ |
1187 | * @last_update: time in jiffies when this entry was refreshed last time |
1188 | * @hash_entry: hlist node for batadv_priv_dat::hash | |
1189 | * @refcount: number of contexts the object is used | |
1190 | * @rcu: struct used for freeing in an RCU-safe manner | |
1191 | */ | |
1192 | struct batadv_dat_entry { | |
1193 | __be32 ip; | |
1194 | uint8_t mac_addr[ETH_ALEN]; | |
be1db4f6 | 1195 | unsigned short vid; |
2f1dfbe1 AQ |
1196 | unsigned long last_update; |
1197 | struct hlist_node hash_entry; | |
1198 | atomic_t refcount; | |
1199 | struct rcu_head rcu; | |
1200 | }; | |
1201 | ||
c5caf4ef LL |
1202 | /** |
1203 | * struct batadv_hw_addr - a list entry for a MAC address | |
1204 | * @list: list node for the linking of entries | |
1205 | * @addr: the MAC address of this list entry | |
1206 | */ | |
1207 | struct batadv_hw_addr { | |
1208 | struct hlist_node list; | |
1209 | unsigned char addr[ETH_ALEN]; | |
1210 | }; | |
1211 | ||
785ea114 AQ |
1212 | /** |
1213 | * struct batadv_dat_candidate - candidate destination for DAT operations | |
1214 | * @type: the type of the selected candidate. It can one of the following: | |
1215 | * - BATADV_DAT_CANDIDATE_NOT_FOUND | |
1216 | * - BATADV_DAT_CANDIDATE_ORIG | |
1217 | * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the | |
1218 | * corresponding originator node structure | |
1219 | */ | |
1220 | struct batadv_dat_candidate { | |
1221 | int type; | |
1222 | struct batadv_orig_node *orig_node; | |
1223 | }; | |
1224 | ||
ef261577 ML |
1225 | /** |
1226 | * struct batadv_tvlv_container - container for tvlv appended to OGMs | |
1227 | * @list: hlist node for batadv_priv_tvlv::container_list | |
1228 | * @tvlv_hdr: tvlv header information needed to construct the tvlv | |
1229 | * @value_len: length of the buffer following this struct which contains | |
1230 | * the actual tvlv payload | |
1231 | * @refcount: number of contexts the object is used | |
1232 | */ | |
1233 | struct batadv_tvlv_container { | |
1234 | struct hlist_node list; | |
1235 | struct batadv_tvlv_hdr tvlv_hdr; | |
1236 | atomic_t refcount; | |
1237 | }; | |
1238 | ||
1239 | /** | |
1240 | * struct batadv_tvlv_handler - handler for specific tvlv type and version | |
1241 | * @list: hlist node for batadv_priv_tvlv::handler_list | |
1242 | * @ogm_handler: handler callback which is given the tvlv payload to process on | |
1243 | * incoming OGM packets | |
1244 | * @unicast_handler: handler callback which is given the tvlv payload to process | |
1245 | * on incoming unicast tvlv packets | |
1246 | * @type: tvlv type this handler feels responsible for | |
1247 | * @version: tvlv version this handler feels responsible for | |
1248 | * @flags: tvlv handler flags | |
1249 | * @refcount: number of contexts the object is used | |
1250 | * @rcu: struct used for freeing in an RCU-safe manner | |
1251 | */ | |
1252 | struct batadv_tvlv_handler { | |
1253 | struct hlist_node list; | |
1254 | void (*ogm_handler)(struct batadv_priv *bat_priv, | |
1255 | struct batadv_orig_node *orig, | |
1256 | uint8_t flags, | |
1257 | void *tvlv_value, uint16_t tvlv_value_len); | |
1258 | int (*unicast_handler)(struct batadv_priv *bat_priv, | |
1259 | uint8_t *src, uint8_t *dst, | |
1260 | void *tvlv_value, uint16_t tvlv_value_len); | |
1261 | uint8_t type; | |
1262 | uint8_t version; | |
1263 | uint8_t flags; | |
1264 | atomic_t refcount; | |
1265 | struct rcu_head rcu; | |
1266 | }; | |
1267 | ||
1268 | /** | |
1269 | * enum batadv_tvlv_handler_flags - tvlv handler flags definitions | |
1270 | * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call | |
1271 | * this handler even if its type was not found (with no data) | |
1272 | * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks | |
1273 | * a handler as being called, so it won't be called if the | |
1274 | * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set | |
1275 | */ | |
1276 | enum batadv_tvlv_handler_flags { | |
1277 | BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1), | |
1278 | BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2), | |
1279 | }; | |
1280 | ||
c6c8fea2 | 1281 | #endif /* _NET_BATMAN_ADV_TYPES_H_ */ |