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Antonio Quartulli0b873932013-01-04 03:05:31 +01001/* Copyright (C) 2007-2013 B.A.T.M.A.N. contributors:
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00002 *
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
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000018 */
19
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000020#ifndef _NET_BATMAN_ADV_TYPES_H_
21#define _NET_BATMAN_ADV_TYPES_H_
22
23#include "packet.h"
24#include "bitarray.h"
Sven Eckelmannc11fdfa2012-06-03 22:19:14 +020025#include <linux/kernel.h>
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000026
Antonio Quartulli17224472011-11-06 12:23:55 +010027#ifdef CONFIG_BATMAN_ADV_DAT
28
Antonio Quartulli785ea112011-11-23 11:35:44 +010029/* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
30 * BATADV_DAT_ADDR_MAX is changed as well.
31 *
32 * *Please be careful: batadv_dat_addr_t must be UNSIGNED*
33 */
34#define batadv_dat_addr_t uint16_t
35
Antonio Quartulli17224472011-11-06 12:23:55 +010036#endif /* CONFIG_BATMAN_ADV_DAT */
37
Marek Lindner14511512012-08-02 17:20:26 +020038/**
39 * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
40 * @ogm_buff: buffer holding the OGM packet
41 * @ogm_buff_len: length of the OGM packet buffer
42 * @ogm_seqno: OGM sequence number - used to identify each OGM
43 */
44struct batadv_hard_iface_bat_iv {
45 unsigned char *ogm_buff;
46 int ogm_buff_len;
47 atomic_t ogm_seqno;
48};
49
Marek Lindner88a32c92012-12-25 21:45:12 +080050/**
51 * struct batadv_hard_iface - network device known to batman-adv
52 * @list: list node for batadv_hardif_list
53 * @if_num: identificator of the interface
54 * @if_status: status of the interface for batman-adv
55 * @net_dev: pointer to the net_device
Matthias Schiffercaf65bf2013-03-09 23:14:23 +010056 * @num_bcasts: number of payload re-broadcasts on this interface (ARQ)
Marek Lindner88a32c92012-12-25 21:45:12 +080057 * @hardif_obj: kobject of the per interface sysfs "mesh" directory
58 * @refcount: number of contexts the object is used
59 * @batman_adv_ptype: packet type describing packets that should be processed by
60 * batman-adv for this interface
61 * @soft_iface: the batman-adv interface which uses this network interface
62 * @rcu: struct used for freeing in an RCU-safe manner
63 * @bat_iv: BATMAN IV specific per hard interface data
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +010064 * @cleanup_work: work queue callback item for hard interface deinit
Marek Lindner88a32c92012-12-25 21:45:12 +080065 */
Sven Eckelmann56303d32012-06-05 22:31:31 +020066struct batadv_hard_iface {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000067 struct list_head list;
68 int16_t if_num;
69 char if_status;
70 struct net_device *net_dev;
Matthias Schiffercaf65bf2013-03-09 23:14:23 +010071 uint8_t num_bcasts;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000072 struct kobject *hardif_obj;
Marek Lindnered75ccb2011-02-10 14:33:51 +000073 atomic_t refcount;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000074 struct packet_type batman_adv_ptype;
75 struct net_device *soft_iface;
76 struct rcu_head rcu;
Marek Lindner14511512012-08-02 17:20:26 +020077 struct batadv_hard_iface_bat_iv bat_iv;
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +010078 struct work_struct cleanup_work;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +000079};
80
Ben Hutchings2c530402012-07-10 10:55:09 +000081/**
Martin Hundebøll610bfc6bc2013-05-23 16:53:02 +020082 * struct batadv_frag_table_entry - head in the fragment buffer table
83 * @head: head of list with fragments
84 * @lock: lock to protect the list of fragments
85 * @timestamp: time (jiffie) of last received fragment
86 * @seqno: sequence number of the fragments in the list
87 * @size: accumulated size of packets in list
88 */
89struct batadv_frag_table_entry {
90 struct hlist_head head;
91 spinlock_t lock; /* protects head */
92 unsigned long timestamp;
93 uint16_t seqno;
94 uint16_t size;
95};
96
97/**
98 * struct batadv_frag_list_entry - entry in a list of fragments
99 * @list: list node information
100 * @skb: fragment
101 * @no: fragment number in the set
102 */
103struct batadv_frag_list_entry {
104 struct hlist_node list;
105 struct sk_buff *skb;
106 uint8_t no;
107};
108
109/**
Antonio Quartulli7ea7b4a2013-07-30 22:16:25 +0200110 * struct batadv_vlan_tt - VLAN specific TT attributes
111 * @crc: CRC32 checksum of the entries belonging to this vlan
112 * @num_entries: number of TT entries for this VLAN
113 */
114struct batadv_vlan_tt {
115 uint32_t crc;
116 atomic_t num_entries;
117};
118
119/**
120 * batadv_orig_node_vlan - VLAN specific data per orig_node
121 * @vid: the VLAN identifier
122 * @tt: VLAN specific TT attributes
123 * @list: list node for orig_node::vlan_list
124 * @refcount: number of context where this object is currently in use
125 * @rcu: struct used for freeing in a RCU-safe manner
126 */
127struct batadv_orig_node_vlan {
128 unsigned short vid;
129 struct batadv_vlan_tt tt;
130 struct list_head list;
131 atomic_t refcount;
132 struct rcu_head rcu;
133};
134
135/**
Antonio Quartullibbad0a52013-09-02 12:15:02 +0200136 * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members
137 * @bcast_own: bitfield containing the number of our OGMs this orig_node
138 * rebroadcasted "back" to us (relative to last_real_seqno)
139 * @bcast_own_sum: counted result of bcast_own
140 * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum,
141 * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count
142 */
143struct batadv_orig_bat_iv {
144 unsigned long *bcast_own;
145 uint8_t *bcast_own_sum;
146 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
147 * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count
148 */
149 spinlock_t ogm_cnt_lock;
150};
151
152/**
Marek Lindnerb6d0ab72012-12-25 17:03:19 +0800153 * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
Marek Lindner88a32c92012-12-25 21:45:12 +0800154 * @orig: originator ethernet address
Marek Lindnerb6d0ab72012-12-25 17:03:19 +0800155 * @primary_addr: hosts primary interface address
Marek Lindner88a32c92012-12-25 21:45:12 +0800156 * @router: router that should be used to reach this originator
157 * @batadv_dat_addr_t: address of the orig node in the distributed hash
Marek Lindner88a32c92012-12-25 21:45:12 +0800158 * @last_seen: time when last packet from this node was received
Marek Lindnerb6d0ab72012-12-25 17:03:19 +0800159 * @bcast_seqno_reset: time when the broadcast seqno window was reset
160 * @batman_seqno_reset: time when the batman seqno window was reset
Marek Lindner17cf0ea2013-04-23 21:39:59 +0800161 * @capabilities: announced capabilities of this originator
Marek Lindner88a32c92012-12-25 21:45:12 +0800162 * @last_ttvn: last seen translation table version number
Marek Lindner88a32c92012-12-25 21:45:12 +0800163 * @tt_buff: last tt changeset this node received from the orig node
164 * @tt_buff_len: length of the last tt changeset this node received from the
165 * orig node
166 * @tt_buff_lock: lock that protects tt_buff and tt_buff_len
Marek Lindner88a32c92012-12-25 21:45:12 +0800167 * @tt_initialised: bool keeping track of whether or not this node have received
168 * any translation table information from the orig node yet
Antonio Quartullia70a9aa2013-07-30 22:16:24 +0200169 * @tt_lock: prevents from updating the table while reading it. Table update is
170 * made up by two operations (data structure update and metdata -CRC/TTVN-
171 * recalculation) and they have to be executed atomically in order to avoid
172 * another thread to read the table/metadata between those.
Marek Lindnerb6d0ab72012-12-25 17:03:19 +0800173 * @last_real_seqno: last and best known sequence number
174 * @last_ttl: ttl of last received packet
Marek Lindner88a32c92012-12-25 21:45:12 +0800175 * @bcast_bits: bitfield containing the info which payload broadcast originated
176 * from this orig node this host already has seen (relative to
177 * last_bcast_seqno)
Marek Lindnerb6d0ab72012-12-25 17:03:19 +0800178 * @last_bcast_seqno: last broadcast sequence number received by this host
Marek Lindner88a32c92012-12-25 21:45:12 +0800179 * @neigh_list: list of potential next hop neighbor towards this orig node
Marek Lindner88a32c92012-12-25 21:45:12 +0800180 * @neigh_list_lock: lock protecting neigh_list, router and bonding_list
181 * @hash_entry: hlist node for batadv_priv::orig_hash
182 * @bat_priv: pointer to soft_iface this orig node belongs to
Marek Lindner88a32c92012-12-25 21:45:12 +0800183 * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno
184 * @bond_candidates: how many candidates are available
185 * @bond_list: list of bonding candidates
186 * @refcount: number of contexts the object is used
187 * @rcu: struct used for freeing in an RCU-safe manner
Martin Hundebølld56b1702013-01-25 11:12:39 +0100188 * @in_coding_list: list of nodes this orig can hear
189 * @out_coding_list: list of nodes that can hear this orig
190 * @in_coding_list_lock: protects in_coding_list
191 * @out_coding_list_lock: protects out_coding_list
Martin Hundebøll610bfc6bc2013-05-23 16:53:02 +0200192 * @fragments: array with heads for fragment chains
Antonio Quartulli7ea7b4a2013-07-30 22:16:25 +0200193 * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the
194 * originator represented by this object
195 * @vlan_list_lock: lock protecting vlan_list
Antonio Quartullibbad0a52013-09-02 12:15:02 +0200196 * @bat_iv: B.A.T.M.A.N. IV private structure
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000197 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200198struct batadv_orig_node {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000199 uint8_t orig[ETH_ALEN];
200 uint8_t primary_addr[ETH_ALEN];
Sven Eckelmann56303d32012-06-05 22:31:31 +0200201 struct batadv_neigh_node __rcu *router; /* rcu protected pointer */
Antonio Quartulli17224472011-11-06 12:23:55 +0100202#ifdef CONFIG_BATMAN_ADV_DAT
Antonio Quartulli785ea112011-11-23 11:35:44 +0100203 batadv_dat_addr_t dat_addr;
Antonio Quartulli17224472011-11-06 12:23:55 +0100204#endif
Marek Lindnerd7b2a972012-03-01 15:35:19 +0800205 unsigned long last_seen;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000206 unsigned long bcast_seqno_reset;
207 unsigned long batman_seqno_reset;
Marek Lindner17cf0ea2013-04-23 21:39:59 +0800208 uint8_t capabilities;
Marek Lindner88a32c92012-12-25 21:45:12 +0800209 atomic_t last_ttvn;
Antonio Quartulli2dafb492011-05-05 08:42:45 +0200210 unsigned char *tt_buff;
211 int16_t tt_buff_len;
Marek Lindner88a32c92012-12-25 21:45:12 +0800212 spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */
Antonio Quartulli17071572011-11-07 16:36:40 +0100213 bool tt_initialised;
Antonio Quartullia70a9aa2013-07-30 22:16:24 +0200214 /* prevents from changing the table while reading it */
215 spinlock_t tt_lock;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000216 uint32_t last_real_seqno;
217 uint8_t last_ttl;
Sven Eckelmann42d0b042012-06-03 22:19:17 +0200218 DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000219 uint32_t last_bcast_seqno;
Marek Lindner9591a792010-12-12 21:57:11 +0000220 struct hlist_head neigh_list;
Marek Lindner88a32c92012-12-25 21:45:12 +0800221 /* neigh_list_lock protects: neigh_list, router & bonding_list */
222 spinlock_t neigh_list_lock;
Marek Lindner7aadf882011-02-18 12:28:09 +0000223 struct hlist_node hash_entry;
Sven Eckelmann56303d32012-06-05 22:31:31 +0200224 struct batadv_priv *bat_priv;
Marek Lindner88a32c92012-12-25 21:45:12 +0800225 /* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */
Sven Eckelmann6e215fd2011-05-08 12:45:45 +0200226 spinlock_t bcast_seqno_lock;
Simon Wunderlicha4c135c2011-01-19 20:01:43 +0000227 atomic_t bond_candidates;
228 struct list_head bond_list;
Marek Lindner88a32c92012-12-25 21:45:12 +0800229 atomic_t refcount;
230 struct rcu_head rcu;
Martin Hundebølld56b1702013-01-25 11:12:39 +0100231#ifdef CONFIG_BATMAN_ADV_NC
232 struct list_head in_coding_list;
233 struct list_head out_coding_list;
234 spinlock_t in_coding_list_lock; /* Protects in_coding_list */
235 spinlock_t out_coding_list_lock; /* Protects out_coding_list */
236#endif
Martin Hundebøll610bfc6bc2013-05-23 16:53:02 +0200237 struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
Antonio Quartulli7ea7b4a2013-07-30 22:16:25 +0200238 struct list_head vlan_list;
239 spinlock_t vlan_list_lock; /* protects vlan_list */
Antonio Quartullibbad0a52013-09-02 12:15:02 +0200240 struct batadv_orig_bat_iv bat_iv;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000241};
242
Marek Lindner88a32c92012-12-25 21:45:12 +0800243/**
Marek Lindner17cf0ea2013-04-23 21:39:59 +0800244 * enum batadv_orig_capabilities - orig node capabilities
245 * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled
Marek Lindner3f4841f2013-04-23 21:40:00 +0800246 * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled
Marek Lindner17cf0ea2013-04-23 21:39:59 +0800247 */
248enum batadv_orig_capabilities {
249 BATADV_ORIG_CAPA_HAS_DAT = BIT(0),
Marek Lindner3f4841f2013-04-23 21:40:00 +0800250 BATADV_ORIG_CAPA_HAS_NC = BIT(1),
Marek Lindner17cf0ea2013-04-23 21:39:59 +0800251};
252
253/**
Marek Lindner88a32c92012-12-25 21:45:12 +0800254 * struct batadv_gw_node - structure for orig nodes announcing gw capabilities
255 * @list: list node for batadv_priv_gw::list
256 * @orig_node: pointer to corresponding orig node
Marek Lindner414254e2013-04-23 21:39:58 +0800257 * @bandwidth_down: advertised uplink download bandwidth
258 * @bandwidth_up: advertised uplink upload bandwidth
Marek Lindner88a32c92012-12-25 21:45:12 +0800259 * @deleted: this struct is scheduled for deletion
260 * @refcount: number of contexts the object is used
261 * @rcu: struct used for freeing in an RCU-safe manner
262 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200263struct batadv_gw_node {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000264 struct hlist_node list;
Sven Eckelmann56303d32012-06-05 22:31:31 +0200265 struct batadv_orig_node *orig_node;
Marek Lindner414254e2013-04-23 21:39:58 +0800266 uint32_t bandwidth_down;
267 uint32_t bandwidth_up;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000268 unsigned long deleted;
Marek Lindner25b6d3c2011-02-10 14:33:49 +0000269 atomic_t refcount;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000270 struct rcu_head rcu;
271};
272
Marek Lindner88a32c92012-12-25 21:45:12 +0800273/**
Antonio Quartulli0538f752013-09-02 12:15:01 +0200274 * struct batadv_neigh_bat_iv - B.A.T.M.A.N. IV specific structure for single
275 * hop neighbors
Marek Lindner88a32c92012-12-25 21:45:12 +0800276 * @tq_recv: ring buffer of received TQ values from this neigh node
277 * @tq_index: ring buffer index
278 * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv)
Marek Lindner88a32c92012-12-25 21:45:12 +0800279 * @real_bits: bitfield containing the number of OGMs received from this neigh
280 * node (relative to orig_node->last_real_seqno)
281 * @real_packet_count: counted result of real_bits
Marek Lindner88a32c92012-12-25 21:45:12 +0800282 * @lq_update_lock: lock protecting tq_recv & tq_index
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000283 */
Antonio Quartulli0538f752013-09-02 12:15:01 +0200284struct batadv_neigh_bat_iv {
Sven Eckelmann42d0b042012-06-03 22:19:17 +0200285 uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000286 uint8_t tq_index;
287 uint8_t tq_avg;
Sven Eckelmann42d0b042012-06-03 22:19:17 +0200288 DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
Marek Lindner88a32c92012-12-25 21:45:12 +0800289 uint8_t real_packet_count;
Marek Lindner88a32c92012-12-25 21:45:12 +0800290 spinlock_t lq_update_lock; /* protects tq_recv & tq_index */
Antonio Quartulli0538f752013-09-02 12:15:01 +0200291};
292
293/**
294 * struct batadv_neigh_node - structure for single hops neighbors
295 * @list: list node for batadv_orig_node::neigh_list
296 * @orig_node: pointer to corresponding orig_node
297 * @addr: the MAC address of the neighboring interface
298 * @if_incoming: pointer to incoming hard interface
299 * @last_seen: when last packet via this neighbor was received
300 * @last_ttl: last received ttl from this neigh node
301 * @bonding_list: list node for batadv_orig_node::bond_list
302 * @refcount: number of contexts the object is used
303 * @rcu: struct used for freeing in an RCU-safe manner
304 * @bat_iv: B.A.T.M.A.N. IV private structure
305 */
306struct batadv_neigh_node {
307 struct hlist_node list;
308 struct batadv_orig_node *orig_node;
309 uint8_t addr[ETH_ALEN];
310 struct batadv_hard_iface *if_incoming;
311 unsigned long last_seen;
312 uint8_t last_ttl;
313 struct list_head bonding_list;
Marek Lindner88a32c92012-12-25 21:45:12 +0800314 atomic_t refcount;
315 struct rcu_head rcu;
Antonio Quartulli0538f752013-09-02 12:15:01 +0200316 struct batadv_neigh_bat_iv bat_iv;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000317};
318
Marek Lindner88a32c92012-12-25 21:45:12 +0800319/**
320 * struct batadv_bcast_duplist_entry - structure for LAN broadcast suppression
321 * @orig[ETH_ALEN]: mac address of orig node orginating the broadcast
322 * @crc: crc32 checksum of broadcast payload
323 * @entrytime: time when the broadcast packet was received
324 */
Simon Wunderlich7a5cc242012-01-22 20:00:27 +0100325#ifdef CONFIG_BATMAN_ADV_BLA
Sven Eckelmann56303d32012-06-05 22:31:31 +0200326struct batadv_bcast_duplist_entry {
Simon Wunderlichfe2da6f2012-01-22 20:00:24 +0100327 uint8_t orig[ETH_ALEN];
Simon Wunderlich004e86f2012-10-18 13:47:42 +0200328 __be32 crc;
Simon Wunderlichfe2da6f2012-01-22 20:00:24 +0100329 unsigned long entrytime;
330};
Simon Wunderlich7a5cc242012-01-22 20:00:27 +0100331#endif
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000332
Marek Lindner88a32c92012-12-25 21:45:12 +0800333/**
334 * enum batadv_counters - indices for traffic counters
335 * @BATADV_CNT_TX: transmitted payload traffic packet counter
336 * @BATADV_CNT_TX_BYTES: transmitted payload traffic bytes counter
337 * @BATADV_CNT_TX_DROPPED: dropped transmission payload traffic packet counter
338 * @BATADV_CNT_RX: received payload traffic packet counter
339 * @BATADV_CNT_RX_BYTES: received payload traffic bytes counter
340 * @BATADV_CNT_FORWARD: forwarded payload traffic packet counter
341 * @BATADV_CNT_FORWARD_BYTES: forwarded payload traffic bytes counter
342 * @BATADV_CNT_MGMT_TX: transmitted routing protocol traffic packet counter
343 * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter
344 * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
345 * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter
Martin Hundebøllee75ed82013-05-23 16:53:03 +0200346 * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter
347 * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter
Martin Hundebøll610bfc6bc2013-05-23 16:53:02 +0200348 * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter
349 * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter
350 * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter
351 * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter
Marek Lindner88a32c92012-12-25 21:45:12 +0800352 * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter
353 * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter
354 * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter
355 * @BATADV_CNT_TT_RESPONSE_RX: received tt resp traffic packet counter
356 * @BATADV_CNT_TT_ROAM_ADV_TX: transmitted tt roam traffic packet counter
357 * @BATADV_CNT_TT_ROAM_ADV_RX: received tt roam traffic packet counter
358 * @BATADV_CNT_DAT_GET_TX: transmitted dht GET traffic packet counter
359 * @BATADV_CNT_DAT_GET_RX: received dht GET traffic packet counter
360 * @BATADV_CNT_DAT_PUT_TX: transmitted dht PUT traffic packet counter
361 * @BATADV_CNT_DAT_PUT_RX: received dht PUT traffic packet counter
362 * @BATADV_CNT_DAT_CACHED_REPLY_TX: transmitted dat cache reply traffic packet
363 * counter
Martin Hundebøll3c12de92013-01-25 11:12:41 +0100364 * @BATADV_CNT_NC_CODE: transmitted nc-combined traffic packet counter
365 * @BATADV_CNT_NC_CODE_BYTES: transmitted nc-combined traffic bytes counter
366 * @BATADV_CNT_NC_RECODE: transmitted nc-recombined traffic packet counter
367 * @BATADV_CNT_NC_RECODE_BYTES: transmitted nc-recombined traffic bytes counter
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100368 * @BATADV_CNT_NC_BUFFER: counter for packets buffered for later nc decoding
Martin Hundebøll2df52782013-01-25 11:12:43 +0100369 * @BATADV_CNT_NC_DECODE: received and nc-decoded traffic packet counter
370 * @BATADV_CNT_NC_DECODE_BYTES: received and nc-decoded traffic bytes counter
371 * @BATADV_CNT_NC_DECODE_FAILED: received and decode-failed traffic packet
372 * counter
373 * @BATADV_CNT_NC_SNIFFED: counter for nc-decoded packets received in promisc
374 * mode.
Marek Lindner88a32c92012-12-25 21:45:12 +0800375 * @BATADV_CNT_NUM: number of traffic counters
376 */
Sven Eckelmannd69909d2012-06-03 22:19:20 +0200377enum batadv_counters {
Marek Lindner1c9b0552012-06-23 11:47:53 +0200378 BATADV_CNT_TX,
379 BATADV_CNT_TX_BYTES,
380 BATADV_CNT_TX_DROPPED,
381 BATADV_CNT_RX,
382 BATADV_CNT_RX_BYTES,
Sven Eckelmannd69909d2012-06-03 22:19:20 +0200383 BATADV_CNT_FORWARD,
384 BATADV_CNT_FORWARD_BYTES,
385 BATADV_CNT_MGMT_TX,
386 BATADV_CNT_MGMT_TX_BYTES,
387 BATADV_CNT_MGMT_RX,
388 BATADV_CNT_MGMT_RX_BYTES,
Martin Hundebøllee75ed82013-05-23 16:53:03 +0200389 BATADV_CNT_FRAG_TX,
390 BATADV_CNT_FRAG_TX_BYTES,
Martin Hundebøll610bfc6bc2013-05-23 16:53:02 +0200391 BATADV_CNT_FRAG_RX,
392 BATADV_CNT_FRAG_RX_BYTES,
393 BATADV_CNT_FRAG_FWD,
394 BATADV_CNT_FRAG_FWD_BYTES,
Sven Eckelmannd69909d2012-06-03 22:19:20 +0200395 BATADV_CNT_TT_REQUEST_TX,
396 BATADV_CNT_TT_REQUEST_RX,
397 BATADV_CNT_TT_RESPONSE_TX,
398 BATADV_CNT_TT_RESPONSE_RX,
399 BATADV_CNT_TT_ROAM_ADV_TX,
400 BATADV_CNT_TT_ROAM_ADV_RX,
Martin Hundebøll4046b242012-04-20 17:02:45 +0200401#ifdef CONFIG_BATMAN_ADV_DAT
402 BATADV_CNT_DAT_GET_TX,
403 BATADV_CNT_DAT_GET_RX,
404 BATADV_CNT_DAT_PUT_TX,
405 BATADV_CNT_DAT_PUT_RX,
406 BATADV_CNT_DAT_CACHED_REPLY_TX,
407#endif
Martin Hundebøll3c12de92013-01-25 11:12:41 +0100408#ifdef CONFIG_BATMAN_ADV_NC
409 BATADV_CNT_NC_CODE,
410 BATADV_CNT_NC_CODE_BYTES,
411 BATADV_CNT_NC_RECODE,
412 BATADV_CNT_NC_RECODE_BYTES,
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100413 BATADV_CNT_NC_BUFFER,
Martin Hundebøll2df52782013-01-25 11:12:43 +0100414 BATADV_CNT_NC_DECODE,
415 BATADV_CNT_NC_DECODE_BYTES,
416 BATADV_CNT_NC_DECODE_FAILED,
417 BATADV_CNT_NC_SNIFFED,
Martin Hundebøll3c12de92013-01-25 11:12:41 +0100418#endif
Sven Eckelmannd69909d2012-06-03 22:19:20 +0200419 BATADV_CNT_NUM,
Martin Hundebøllf8214862012-04-20 17:02:45 +0200420};
421
Sven Eckelmann807736f2012-07-15 22:26:51 +0200422/**
423 * struct batadv_priv_tt - per mesh interface translation table data
424 * @vn: translation table version number
Marek Lindner88a32c92012-12-25 21:45:12 +0800425 * @ogm_append_cnt: counter of number of OGMs containing the local tt diff
Sven Eckelmann807736f2012-07-15 22:26:51 +0200426 * @local_changes: changes registered in an originator interval
Sven Eckelmann807736f2012-07-15 22:26:51 +0200427 * @changes_list: tracks tt local changes within an originator interval
Marek Lindner88a32c92012-12-25 21:45:12 +0800428 * @local_hash: local translation table hash table
429 * @global_hash: global translation table hash table
430 * @req_list: list of pending & unanswered tt_requests
431 * @roam_list: list of the last roaming events of each client limiting the
432 * number of roaming events to avoid route flapping
433 * @changes_list_lock: lock protecting changes_list
434 * @req_list_lock: lock protecting req_list
435 * @roam_list_lock: lock protecting roam_list
Marek Lindner88a32c92012-12-25 21:45:12 +0800436 * @last_changeset: last tt changeset this host has generated
437 * @last_changeset_len: length of last tt changeset this host has generated
438 * @last_changeset_lock: lock protecting last_changeset & last_changeset_len
Antonio Quartullia70a9aa2013-07-30 22:16:24 +0200439 * @commit_lock: prevents from executing a local TT commit while reading the
440 * local table. The local TT commit is made up by two operations (data
441 * structure update and metdata -CRC/TTVN- recalculation) and they have to be
442 * executed atomically in order to avoid another thread to read the
443 * table/metadata between those.
Marek Lindner88a32c92012-12-25 21:45:12 +0800444 * @work: work queue callback item for translation table purging
Sven Eckelmann807736f2012-07-15 22:26:51 +0200445 */
446struct batadv_priv_tt {
447 atomic_t vn;
448 atomic_t ogm_append_cnt;
449 atomic_t local_changes;
Sven Eckelmann807736f2012-07-15 22:26:51 +0200450 struct list_head changes_list;
451 struct batadv_hashtable *local_hash;
452 struct batadv_hashtable *global_hash;
453 struct list_head req_list;
454 struct list_head roam_list;
455 spinlock_t changes_list_lock; /* protects changes */
456 spinlock_t req_list_lock; /* protects req_list */
457 spinlock_t roam_list_lock; /* protects roam_list */
Sven Eckelmann807736f2012-07-15 22:26:51 +0200458 unsigned char *last_changeset;
459 int16_t last_changeset_len;
Marek Lindner88a32c92012-12-25 21:45:12 +0800460 /* protects last_changeset & last_changeset_len */
461 spinlock_t last_changeset_lock;
Antonio Quartullia70a9aa2013-07-30 22:16:24 +0200462 /* prevents from executing a commit while reading the table */
463 spinlock_t commit_lock;
Sven Eckelmann807736f2012-07-15 22:26:51 +0200464 struct delayed_work work;
465};
466
Marek Lindner88a32c92012-12-25 21:45:12 +0800467/**
468 * struct batadv_priv_bla - per mesh interface bridge loope avoidance data
469 * @num_requests; number of bla requests in flight
470 * @claim_hash: hash table containing mesh nodes this host has claimed
471 * @backbone_hash: hash table containing all detected backbone gateways
472 * @bcast_duplist: recently received broadcast packets array (for broadcast
473 * duplicate suppression)
474 * @bcast_duplist_curr: index of last broadcast packet added to bcast_duplist
475 * @bcast_duplist_lock: lock protecting bcast_duplist & bcast_duplist_curr
476 * @claim_dest: local claim data (e.g. claim group)
477 * @work: work queue callback item for cleanups & bla announcements
478 */
Sven Eckelmann807736f2012-07-15 22:26:51 +0200479#ifdef CONFIG_BATMAN_ADV_BLA
480struct batadv_priv_bla {
Marek Lindner88a32c92012-12-25 21:45:12 +0800481 atomic_t num_requests;
Sven Eckelmann807736f2012-07-15 22:26:51 +0200482 struct batadv_hashtable *claim_hash;
483 struct batadv_hashtable *backbone_hash;
484 struct batadv_bcast_duplist_entry bcast_duplist[BATADV_DUPLIST_SIZE];
485 int bcast_duplist_curr;
Marek Lindner88a32c92012-12-25 21:45:12 +0800486 /* protects bcast_duplist & bcast_duplist_curr */
Linus LĂĽssing7dac7b72012-10-17 14:53:05 +0200487 spinlock_t bcast_duplist_lock;
Sven Eckelmann807736f2012-07-15 22:26:51 +0200488 struct batadv_bla_claim_dst claim_dest;
489 struct delayed_work work;
490};
491#endif
492
Marek Lindner88a32c92012-12-25 21:45:12 +0800493/**
494 * struct batadv_debug_log - debug logging data
495 * @log_buff: buffer holding the logs (ring bufer)
496 * @log_start: index of next character to read
497 * @log_end: index of next character to write
498 * @lock: lock protecting log_buff, log_start & log_end
499 * @queue_wait: log reader's wait queue
500 */
Marek Lindner0abf5d82012-12-25 17:03:20 +0800501#ifdef CONFIG_BATMAN_ADV_DEBUG
502struct batadv_priv_debug_log {
503 char log_buff[BATADV_LOG_BUF_LEN];
504 unsigned long log_start;
505 unsigned long log_end;
506 spinlock_t lock; /* protects log_buff, log_start and log_end */
507 wait_queue_head_t queue_wait;
508};
509#endif
510
Marek Lindner88a32c92012-12-25 21:45:12 +0800511/**
512 * struct batadv_priv_gw - per mesh interface gateway data
513 * @list: list of available gateway nodes
514 * @list_lock: lock protecting gw_list & curr_gw
515 * @curr_gw: pointer to currently selected gateway node
Marek Lindner414254e2013-04-23 21:39:58 +0800516 * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server)
517 * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server)
Marek Lindner88a32c92012-12-25 21:45:12 +0800518 * @reselect: bool indicating a gateway re-selection is in progress
519 */
Sven Eckelmann807736f2012-07-15 22:26:51 +0200520struct batadv_priv_gw {
521 struct hlist_head list;
Marek Lindner88a32c92012-12-25 21:45:12 +0800522 spinlock_t list_lock; /* protects gw_list & curr_gw */
Sven Eckelmann807736f2012-07-15 22:26:51 +0200523 struct batadv_gw_node __rcu *curr_gw; /* rcu protected pointer */
Marek Lindner414254e2013-04-23 21:39:58 +0800524 atomic_t bandwidth_down;
525 atomic_t bandwidth_up;
Sven Eckelmann807736f2012-07-15 22:26:51 +0200526 atomic_t reselect;
527};
528
Marek Lindner88a32c92012-12-25 21:45:12 +0800529/**
Marek Lindneref261572013-04-23 21:39:57 +0800530 * struct batadv_priv_tvlv - per mesh interface tvlv data
531 * @container_list: list of registered tvlv containers to be sent with each OGM
532 * @handler_list: list of the various tvlv content handlers
533 * @container_list_lock: protects tvlv container list access
534 * @handler_list_lock: protects handler list access
535 */
536struct batadv_priv_tvlv {
537 struct hlist_head container_list;
538 struct hlist_head handler_list;
539 spinlock_t container_list_lock; /* protects container_list */
540 spinlock_t handler_list_lock; /* protects handler_list */
541};
542
543/**
Antonio Quartulli785ea112011-11-23 11:35:44 +0100544 * struct batadv_priv_dat - per mesh interface DAT private data
545 * @addr: node DAT address
Antonio Quartulli2f1dfbe2012-06-30 20:01:19 +0200546 * @hash: hashtable representing the local ARP cache
547 * @work: work queue callback item for cache purging
Antonio Quartulli785ea112011-11-23 11:35:44 +0100548 */
Antonio Quartulli17224472011-11-06 12:23:55 +0100549#ifdef CONFIG_BATMAN_ADV_DAT
Antonio Quartulli785ea112011-11-23 11:35:44 +0100550struct batadv_priv_dat {
551 batadv_dat_addr_t addr;
Antonio Quartulli2f1dfbe2012-06-30 20:01:19 +0200552 struct batadv_hashtable *hash;
553 struct delayed_work work;
Antonio Quartulli785ea112011-11-23 11:35:44 +0100554};
Antonio Quartulli17224472011-11-06 12:23:55 +0100555#endif
Antonio Quartulli785ea112011-11-23 11:35:44 +0100556
Marek Lindner88a32c92012-12-25 21:45:12 +0800557/**
Martin Hundebølld353d8d2013-01-25 11:12:38 +0100558 * struct batadv_priv_nc - per mesh interface network coding private data
559 * @work: work queue callback item for cleanup
Martin Hundebølld56b1702013-01-25 11:12:39 +0100560 * @debug_dir: dentry for nc subdir in batman-adv directory in debugfs
561 * @min_tq: only consider neighbors for encoding if neigh_tq > min_tq
Martin Hundebøll95332472013-01-25 11:12:40 +0100562 * @max_fwd_delay: maximum packet forward delay to allow coding of packets
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100563 * @max_buffer_time: buffer time for sniffed packets used to decoding
Martin Hundebøll95332472013-01-25 11:12:40 +0100564 * @timestamp_fwd_flush: timestamp of last forward packet queue flush
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100565 * @timestamp_sniffed_purge: timestamp of last sniffed packet queue purge
Martin Hundebøll95332472013-01-25 11:12:40 +0100566 * @coding_hash: Hash table used to buffer skbs while waiting for another
567 * incoming skb to code it with. Skbs are added to the buffer just before being
568 * forwarded in routing.c
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100569 * @decoding_hash: Hash table used to buffer skbs that might be needed to decode
570 * a received coded skb. The buffer is used for 1) skbs arriving on the
571 * soft-interface; 2) skbs overheard on the hard-interface; and 3) skbs
572 * forwarded by batman-adv.
Martin Hundebølld353d8d2013-01-25 11:12:38 +0100573 */
574struct batadv_priv_nc {
575 struct delayed_work work;
Martin Hundebølld56b1702013-01-25 11:12:39 +0100576 struct dentry *debug_dir;
577 u8 min_tq;
Martin Hundebøll95332472013-01-25 11:12:40 +0100578 u32 max_fwd_delay;
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100579 u32 max_buffer_time;
Martin Hundebøll95332472013-01-25 11:12:40 +0100580 unsigned long timestamp_fwd_flush;
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100581 unsigned long timestamp_sniffed_purge;
Martin Hundebøll95332472013-01-25 11:12:40 +0100582 struct batadv_hashtable *coding_hash;
Martin Hundebøll612d2b42013-01-25 11:12:42 +0100583 struct batadv_hashtable *decoding_hash;
Martin Hundebølld353d8d2013-01-25 11:12:38 +0100584};
585
586/**
Antonio Quartulli5d2c05b2013-07-02 11:04:34 +0200587 * struct batadv_softif_vlan - per VLAN attributes set
588 * @vid: VLAN identifier
589 * @kobj: kobject for sysfs vlan subdirectory
Antonio Quartullib8cbd812013-07-02 11:04:36 +0200590 * @ap_isolation: AP isolation state
Antonio Quartulli7ea7b4a2013-07-30 22:16:25 +0200591 * @tt: TT private attributes (VLAN specific)
Antonio Quartulli5d2c05b2013-07-02 11:04:34 +0200592 * @list: list node for bat_priv::softif_vlan_list
593 * @refcount: number of context where this object is currently in use
594 * @rcu: struct used for freeing in a RCU-safe manner
595 */
596struct batadv_softif_vlan {
597 unsigned short vid;
598 struct kobject *kobj;
Antonio Quartullib8cbd812013-07-02 11:04:36 +0200599 atomic_t ap_isolation; /* boolean */
Antonio Quartulli7ea7b4a2013-07-30 22:16:25 +0200600 struct batadv_vlan_tt tt;
Antonio Quartulli5d2c05b2013-07-02 11:04:34 +0200601 struct hlist_node list;
602 atomic_t refcount;
603 struct rcu_head rcu;
604};
605
606/**
Marek Lindner88a32c92012-12-25 21:45:12 +0800607 * struct batadv_priv - per mesh interface data
608 * @mesh_state: current status of the mesh (inactive/active/deactivating)
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +0100609 * @soft_iface: net device which holds this struct as private data
Marek Lindner88a32c92012-12-25 21:45:12 +0800610 * @stats: structure holding the data for the ndo_get_stats() call
611 * @bat_counters: mesh internal traffic statistic counters (see batadv_counters)
612 * @aggregated_ogms: bool indicating whether OGM aggregation is enabled
613 * @bonding: bool indicating whether traffic bonding is enabled
614 * @fragmentation: bool indicating whether traffic fragmentation is enabled
Marek Lindnera19d3d82013-05-27 15:33:25 +0800615 * @packet_size_max: max packet size that can be transmitted via
616 * multiple fragmented skbs or a single frame if fragmentation is disabled
Martin Hundebøllee75ed82013-05-23 16:53:03 +0200617 * @frag_seqno: incremental counter to identify chains of egress fragments
Marek Lindner88a32c92012-12-25 21:45:12 +0800618 * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is
619 * enabled
620 * @distributed_arp_table: bool indicating whether distributed ARP table is
621 * enabled
Marek Lindner88a32c92012-12-25 21:45:12 +0800622 * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes)
623 * @gw_sel_class: gateway selection class (applies if gw_mode client)
Marek Lindner88a32c92012-12-25 21:45:12 +0800624 * @orig_interval: OGM broadcast interval in milliseconds
625 * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop
626 * @log_level: configured log level (see batadv_dbg_level)
627 * @bcast_seqno: last sent broadcast packet sequence number
628 * @bcast_queue_left: number of remaining buffered broadcast packet slots
629 * @batman_queue_left: number of remaining OGM packet slots
630 * @num_ifaces: number of interfaces assigned to this mesh interface
631 * @mesh_obj: kobject for sysfs mesh subdirectory
632 * @debug_dir: dentry for debugfs batman-adv subdirectory
633 * @forw_bat_list: list of aggregated OGMs that will be forwarded
634 * @forw_bcast_list: list of broadcast packets that will be rebroadcasted
635 * @orig_hash: hash table containing mesh participants (orig nodes)
636 * @forw_bat_list_lock: lock protecting forw_bat_list
637 * @forw_bcast_list_lock: lock protecting forw_bcast_list
638 * @orig_work: work queue callback item for orig node purging
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +0100639 * @cleanup_work: work queue callback item for soft interface deinit
Marek Lindner88a32c92012-12-25 21:45:12 +0800640 * @primary_if: one of the hard interfaces assigned to this mesh interface
641 * becomes the primary interface
642 * @bat_algo_ops: routing algorithm used by this mesh interface
Antonio Quartulli5d2c05b2013-07-02 11:04:34 +0200643 * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top
644 * of the mesh interface represented by this object
645 * @softif_vlan_list_lock: lock protecting softif_vlan_list
Marek Lindner88a32c92012-12-25 21:45:12 +0800646 * @bla: bridge loope avoidance data
647 * @debug_log: holding debug logging relevant data
648 * @gw: gateway data
649 * @tt: translation table data
Marek Lindneref261572013-04-23 21:39:57 +0800650 * @tvlv: type-version-length-value data
Marek Lindner88a32c92012-12-25 21:45:12 +0800651 * @dat: distributed arp table data
Martin Hundebølld353d8d2013-01-25 11:12:38 +0100652 * @network_coding: bool indicating whether network coding is enabled
653 * @batadv_priv_nc: network coding data
Marek Lindner88a32c92012-12-25 21:45:12 +0800654 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200655struct batadv_priv {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000656 atomic_t mesh_state;
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +0100657 struct net_device *soft_iface;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000658 struct net_device_stats stats;
Martin Hundebøllf8214862012-04-20 17:02:45 +0200659 uint64_t __percpu *bat_counters; /* Per cpu counters */
Marek Lindner88a32c92012-12-25 21:45:12 +0800660 atomic_t aggregated_ogms;
661 atomic_t bonding;
662 atomic_t fragmentation;
Marek Lindnera19d3d82013-05-27 15:33:25 +0800663 atomic_t packet_size_max;
Martin Hundebøllee75ed82013-05-23 16:53:03 +0200664 atomic_t frag_seqno;
Antonio Quartullifa706552012-11-26 01:27:29 +0100665#ifdef CONFIG_BATMAN_ADV_BLA
Marek Lindner88a32c92012-12-25 21:45:12 +0800666 atomic_t bridge_loop_avoidance;
Antonio Quartullifa706552012-11-26 01:27:29 +0100667#endif
Antonio Quartulli33af49a2012-08-08 18:50:57 +0200668#ifdef CONFIG_BATMAN_ADV_DAT
Marek Lindner88a32c92012-12-25 21:45:12 +0800669 atomic_t distributed_arp_table;
Antonio Quartulli33af49a2012-08-08 18:50:57 +0200670#endif
Marek Lindner88a32c92012-12-25 21:45:12 +0800671 atomic_t gw_mode;
672 atomic_t gw_sel_class;
Marek Lindner88a32c92012-12-25 21:45:12 +0800673 atomic_t orig_interval;
674 atomic_t hop_penalty;
Marek Lindner0c430d02012-12-16 13:53:15 +0800675#ifdef CONFIG_BATMAN_ADV_DEBUG
Marek Lindner88a32c92012-12-25 21:45:12 +0800676 atomic_t log_level;
Marek Lindner0c430d02012-12-16 13:53:15 +0800677#endif
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000678 atomic_t bcast_seqno;
679 atomic_t bcast_queue_left;
680 atomic_t batman_queue_left;
681 char num_ifaces;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000682 struct kobject *mesh_obj;
683 struct dentry *debug_dir;
684 struct hlist_head forw_bat_list;
685 struct hlist_head forw_bcast_list;
Sven Eckelmann5bf74e92012-06-05 22:31:28 +0200686 struct batadv_hashtable *orig_hash;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000687 spinlock_t forw_bat_list_lock; /* protects forw_bat_list */
Antonio Quartullia7528f82012-09-02 19:00:38 +0200688 spinlock_t forw_bcast_list_lock; /* protects forw_bcast_list */
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000689 struct delayed_work orig_work;
Simon Wunderlich5bc44dc2013-01-11 10:19:51 +0100690 struct work_struct cleanup_work;
Sven Eckelmann56303d32012-06-05 22:31:31 +0200691 struct batadv_hard_iface __rcu *primary_if; /* rcu protected pointer */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200692 struct batadv_algo_ops *bat_algo_ops;
Antonio Quartulli5d2c05b2013-07-02 11:04:34 +0200693 struct hlist_head softif_vlan_list;
694 spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */
Sven Eckelmann807736f2012-07-15 22:26:51 +0200695#ifdef CONFIG_BATMAN_ADV_BLA
696 struct batadv_priv_bla bla;
697#endif
Marek Lindner0abf5d82012-12-25 17:03:20 +0800698#ifdef CONFIG_BATMAN_ADV_DEBUG
699 struct batadv_priv_debug_log *debug_log;
700#endif
Sven Eckelmann807736f2012-07-15 22:26:51 +0200701 struct batadv_priv_gw gw;
702 struct batadv_priv_tt tt;
Marek Lindneref261572013-04-23 21:39:57 +0800703 struct batadv_priv_tvlv tvlv;
Antonio Quartulli17224472011-11-06 12:23:55 +0100704#ifdef CONFIG_BATMAN_ADV_DAT
Antonio Quartulli785ea112011-11-23 11:35:44 +0100705 struct batadv_priv_dat dat;
Antonio Quartulli17224472011-11-06 12:23:55 +0100706#endif
Martin Hundebølld353d8d2013-01-25 11:12:38 +0100707#ifdef CONFIG_BATMAN_ADV_NC
708 atomic_t network_coding;
709 struct batadv_priv_nc nc;
710#endif /* CONFIG_BATMAN_ADV_NC */
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000711};
712
Marek Lindner88a32c92012-12-25 21:45:12 +0800713/**
714 * struct batadv_socket_client - layer2 icmp socket client data
715 * @queue_list: packet queue for packets destined for this socket client
716 * @queue_len: number of packets in the packet queue (queue_list)
717 * @index: socket client's index in the batadv_socket_client_hash
718 * @lock: lock protecting queue_list, queue_len & index
719 * @queue_wait: socket client's wait queue
720 * @bat_priv: pointer to soft_iface this client belongs to
721 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200722struct batadv_socket_client {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000723 struct list_head queue_list;
724 unsigned int queue_len;
725 unsigned char index;
Marek Lindner88a32c92012-12-25 21:45:12 +0800726 spinlock_t lock; /* protects queue_list, queue_len & index */
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000727 wait_queue_head_t queue_wait;
Sven Eckelmann56303d32012-06-05 22:31:31 +0200728 struct batadv_priv *bat_priv;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000729};
730
Marek Lindner88a32c92012-12-25 21:45:12 +0800731/**
732 * struct batadv_socket_packet - layer2 icmp packet for socket client
733 * @list: list node for batadv_socket_client::queue_list
734 * @icmp_len: size of the layer2 icmp packet
735 * @icmp_packet: layer2 icmp packet
736 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200737struct batadv_socket_packet {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000738 struct list_head list;
739 size_t icmp_len;
Sven Eckelmann96412692012-06-05 22:31:30 +0200740 struct batadv_icmp_packet_rr icmp_packet;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000741};
742
Marek Lindner88a32c92012-12-25 21:45:12 +0800743/**
744 * struct batadv_bla_backbone_gw - batman-adv gateway bridged into the LAN
745 * @orig: originator address of backbone node (mac address of primary iface)
746 * @vid: vlan id this gateway was detected on
747 * @hash_entry: hlist node for batadv_priv_bla::backbone_hash
748 * @bat_priv: pointer to soft_iface this backbone gateway belongs to
749 * @lasttime: last time we heard of this backbone gw
750 * @wait_periods: grace time for bridge forward delays and bla group forming at
751 * bootup phase - no bcast traffic is formwared until it has elapsed
752 * @request_sent: if this bool is set to true we are out of sync with this
753 * backbone gateway - no bcast traffic is formwared until the situation was
754 * resolved
755 * @crc: crc16 checksum over all claims
756 * @refcount: number of contexts the object is used
757 * @rcu: struct used for freeing in an RCU-safe manner
758 */
Marek Lindner2006fea2012-12-25 17:03:21 +0800759#ifdef CONFIG_BATMAN_ADV_BLA
Marek Lindnerbae98772012-12-25 17:03:24 +0800760struct batadv_bla_backbone_gw {
Marek Lindner2006fea2012-12-25 17:03:21 +0800761 uint8_t orig[ETH_ALEN];
Antonio Quartullieb2deb62013-04-19 18:07:00 +0200762 unsigned short vid;
Marek Lindner2006fea2012-12-25 17:03:21 +0800763 struct hlist_node hash_entry;
764 struct batadv_priv *bat_priv;
Marek Lindner88a32c92012-12-25 21:45:12 +0800765 unsigned long lasttime;
Marek Lindner2006fea2012-12-25 17:03:21 +0800766 atomic_t wait_periods;
767 atomic_t request_sent;
Marek Lindner88a32c92012-12-25 21:45:12 +0800768 uint16_t crc;
Marek Lindner2006fea2012-12-25 17:03:21 +0800769 atomic_t refcount;
770 struct rcu_head rcu;
Marek Lindner2006fea2012-12-25 17:03:21 +0800771};
772
Marek Lindner88a32c92012-12-25 21:45:12 +0800773/**
774 * struct batadv_bla_claim - claimed non-mesh client structure
775 * @addr: mac address of claimed non-mesh client
776 * @vid: vlan id this client was detected on
777 * @batadv_bla_backbone_gw: pointer to backbone gw claiming this client
778 * @lasttime: last time we heard of claim (locals only)
779 * @hash_entry: hlist node for batadv_priv_bla::claim_hash
780 * @refcount: number of contexts the object is used
781 * @rcu: struct used for freeing in an RCU-safe manner
782 */
Marek Lindner712bbfe42012-12-25 17:03:25 +0800783struct batadv_bla_claim {
Marek Lindner2006fea2012-12-25 17:03:21 +0800784 uint8_t addr[ETH_ALEN];
Antonio Quartullieb2deb62013-04-19 18:07:00 +0200785 unsigned short vid;
Marek Lindnerbae98772012-12-25 17:03:24 +0800786 struct batadv_bla_backbone_gw *backbone_gw;
Marek Lindner88a32c92012-12-25 21:45:12 +0800787 unsigned long lasttime;
788 struct hlist_node hash_entry;
Marek Lindner2006fea2012-12-25 17:03:21 +0800789 struct rcu_head rcu;
790 atomic_t refcount;
Marek Lindner2006fea2012-12-25 17:03:21 +0800791};
792#endif
793
Marek Lindner88a32c92012-12-25 21:45:12 +0800794/**
795 * struct batadv_tt_common_entry - tt local & tt global common data
796 * @addr: mac address of non-mesh client
Antonio Quartullic018ad32013-06-04 12:11:39 +0200797 * @vid: VLAN identifier
Marek Lindner88a32c92012-12-25 21:45:12 +0800798 * @hash_entry: hlist node for batadv_priv_tt::local_hash or for
799 * batadv_priv_tt::global_hash
800 * @flags: various state handling flags (see batadv_tt_client_flags)
801 * @added_at: timestamp used for purging stale tt common entries
802 * @refcount: number of contexts the object is used
803 * @rcu: struct used for freeing in an RCU-safe manner
804 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200805struct batadv_tt_common_entry {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000806 uint8_t addr[ETH_ALEN];
Antonio Quartullic018ad32013-06-04 12:11:39 +0200807 unsigned short vid;
Antonio Quartulli93840ac2011-10-22 00:55:39 +0200808 struct hlist_node hash_entry;
Antonio Quartulli5fbc1592011-06-17 16:11:27 +0200809 uint16_t flags;
Antonio Quartulli30cfd022012-07-05 23:38:29 +0200810 unsigned long added_at;
Antonio Quartulli7683fdc2011-04-27 14:28:07 +0200811 atomic_t refcount;
812 struct rcu_head rcu;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000813};
814
Marek Lindner88a32c92012-12-25 21:45:12 +0800815/**
816 * struct batadv_tt_local_entry - translation table local entry data
817 * @common: general translation table data
818 * @last_seen: timestamp used for purging stale tt local entries
819 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200820struct batadv_tt_local_entry {
821 struct batadv_tt_common_entry common;
Antonio Quartulli48100ba2011-10-30 12:17:33 +0100822 unsigned long last_seen;
823};
824
Marek Lindner88a32c92012-12-25 21:45:12 +0800825/**
826 * struct batadv_tt_global_entry - translation table global entry data
827 * @common: general translation table data
828 * @orig_list: list of orig nodes announcing this non-mesh client
829 * @list_lock: lock protecting orig_list
830 * @roam_at: time at which TT_GLOBAL_ROAM was set
831 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200832struct batadv_tt_global_entry {
833 struct batadv_tt_common_entry common;
Simon Wunderlichdb08e6e2011-10-22 20:12:51 +0200834 struct hlist_head orig_list;
Marek Lindner88a32c92012-12-25 21:45:12 +0800835 spinlock_t list_lock; /* protects orig_list */
836 unsigned long roam_at;
Simon Wunderlichdb08e6e2011-10-22 20:12:51 +0200837};
838
Marek Lindner88a32c92012-12-25 21:45:12 +0800839/**
840 * struct batadv_tt_orig_list_entry - orig node announcing a non-mesh client
841 * @orig_node: pointer to orig node announcing this non-mesh client
842 * @ttvn: translation table version number which added the non-mesh client
843 * @list: list node for batadv_tt_global_entry::orig_list
844 * @refcount: number of contexts the object is used
845 * @rcu: struct used for freeing in an RCU-safe manner
846 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200847struct batadv_tt_orig_list_entry {
848 struct batadv_orig_node *orig_node;
Antonio Quartullia73105b2011-04-27 14:27:44 +0200849 uint8_t ttvn;
Marek Lindner88a32c92012-12-25 21:45:12 +0800850 struct hlist_node list;
Antonio Quartullid657e622012-07-01 14:09:12 +0200851 atomic_t refcount;
Simon Wunderlichdb08e6e2011-10-22 20:12:51 +0200852 struct rcu_head rcu;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000853};
854
Marek Lindner88a32c92012-12-25 21:45:12 +0800855/**
856 * struct batadv_tt_change_node - structure for tt changes occured
857 * @list: list node for batadv_priv_tt::changes_list
858 * @change: holds the actual translation table diff data
859 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200860struct batadv_tt_change_node {
Antonio Quartullia73105b2011-04-27 14:27:44 +0200861 struct list_head list;
Marek Lindnere1bf0c12013-04-23 21:40:01 +0800862 struct batadv_tvlv_tt_change change;
Antonio Quartullia73105b2011-04-27 14:27:44 +0200863};
864
Marek Lindner88a32c92012-12-25 21:45:12 +0800865/**
866 * struct batadv_tt_req_node - data to keep track of the tt requests in flight
867 * @addr: mac address address of the originator this request was sent to
868 * @issued_at: timestamp used for purging stale tt requests
869 * @list: list node for batadv_priv_tt::req_list
870 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200871struct batadv_tt_req_node {
Antonio Quartullia73105b2011-04-27 14:27:44 +0200872 uint8_t addr[ETH_ALEN];
873 unsigned long issued_at;
874 struct list_head list;
875};
876
Marek Lindner88a32c92012-12-25 21:45:12 +0800877/**
878 * struct batadv_tt_roam_node - roaming client data
879 * @addr: mac address of the client in the roaming phase
880 * @counter: number of allowed roaming events per client within a single
881 * OGM interval (changes are committed with each OGM)
882 * @first_time: timestamp used for purging stale roaming node entries
883 * @list: list node for batadv_priv_tt::roam_list
884 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200885struct batadv_tt_roam_node {
Antonio Quartullicc47f662011-04-27 14:27:57 +0200886 uint8_t addr[ETH_ALEN];
887 atomic_t counter;
888 unsigned long first_time;
889 struct list_head list;
890};
891
Marek Lindner88a32c92012-12-25 21:45:12 +0800892/**
Martin Hundebølld56b1702013-01-25 11:12:39 +0100893 * struct batadv_nc_node - network coding node
894 * @list: next and prev pointer for the list handling
895 * @addr: the node's mac address
896 * @refcount: number of contexts the object is used by
897 * @rcu: struct used for freeing in an RCU-safe manner
898 * @orig_node: pointer to corresponding orig node struct
899 * @last_seen: timestamp of last ogm received from this node
900 */
901struct batadv_nc_node {
902 struct list_head list;
903 uint8_t addr[ETH_ALEN];
904 atomic_t refcount;
905 struct rcu_head rcu;
906 struct batadv_orig_node *orig_node;
907 unsigned long last_seen;
908};
909
910/**
Martin Hundebøll95332472013-01-25 11:12:40 +0100911 * struct batadv_nc_path - network coding path
912 * @hash_entry: next and prev pointer for the list handling
913 * @rcu: struct used for freeing in an RCU-safe manner
914 * @refcount: number of contexts the object is used by
915 * @packet_list: list of buffered packets for this path
916 * @packet_list_lock: access lock for packet list
917 * @next_hop: next hop (destination) of path
918 * @prev_hop: previous hop (source) of path
919 * @last_valid: timestamp for last validation of path
920 */
921struct batadv_nc_path {
922 struct hlist_node hash_entry;
923 struct rcu_head rcu;
924 atomic_t refcount;
925 struct list_head packet_list;
926 spinlock_t packet_list_lock; /* Protects packet_list */
927 uint8_t next_hop[ETH_ALEN];
928 uint8_t prev_hop[ETH_ALEN];
929 unsigned long last_valid;
930};
931
932/**
933 * struct batadv_nc_packet - network coding packet used when coding and
934 * decoding packets
935 * @list: next and prev pointer for the list handling
936 * @packet_id: crc32 checksum of skb data
937 * @timestamp: field containing the info when the packet was added to path
938 * @neigh_node: pointer to original next hop neighbor of skb
939 * @skb: skb which can be encoded or used for decoding
940 * @nc_path: pointer to path this nc packet is attached to
941 */
942struct batadv_nc_packet {
943 struct list_head list;
944 __be32 packet_id;
945 unsigned long timestamp;
946 struct batadv_neigh_node *neigh_node;
947 struct sk_buff *skb;
948 struct batadv_nc_path *nc_path;
949};
950
951/**
Martin Hundebøll3c12de92013-01-25 11:12:41 +0100952 * batadv_skb_cb - control buffer structure used to store private data relevant
953 * to batman-adv in the skb->cb buffer in skbs.
954 * @decoded: Marks a skb as decoded, which is checked when searching for coding
955 * opportunities in network-coding.c
956 */
957struct batadv_skb_cb {
958 bool decoded;
959};
960
961/**
Marek Lindner88a32c92012-12-25 21:45:12 +0800962 * struct batadv_forw_packet - structure for bcast packets to be sent/forwarded
963 * @list: list node for batadv_socket_client::queue_list
964 * @send_time: execution time for delayed_work (packet sending)
965 * @own: bool for locally generated packets (local OGMs are re-scheduled after
966 * sending)
967 * @skb: bcast packet's skb buffer
968 * @packet_len: size of aggregated OGM packet inside the skb buffer
969 * @direct_link_flags: direct link flags for aggregated OGM packets
970 * @num_packets: counter for bcast packet retransmission
971 * @delayed_work: work queue callback item for packet sending
972 * @if_incoming: pointer incoming hard-iface or primary iface if locally
973 * generated packet
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000974 */
Sven Eckelmann56303d32012-06-05 22:31:31 +0200975struct batadv_forw_packet {
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000976 struct hlist_node list;
977 unsigned long send_time;
978 uint8_t own;
979 struct sk_buff *skb;
980 uint16_t packet_len;
981 uint32_t direct_link_flags;
982 uint8_t num_packets;
983 struct delayed_work delayed_work;
Sven Eckelmann56303d32012-06-05 22:31:31 +0200984 struct batadv_hard_iface *if_incoming;
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +0000985};
986
Marek Lindner88a32c92012-12-25 21:45:12 +0800987/**
Marek Lindner88a32c92012-12-25 21:45:12 +0800988 * struct batadv_algo_ops - mesh algorithm callbacks
989 * @list: list node for the batadv_algo_list
990 * @name: name of the algorithm
991 * @bat_iface_enable: init routing info when hard-interface is enabled
992 * @bat_iface_disable: de-init routing info when hard-interface is disabled
993 * @bat_iface_update_mac: (re-)init mac addresses of the protocol information
994 * belonging to this hard-interface
995 * @bat_primary_iface_set: called when primary interface is selected / changed
996 * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
997 * @bat_ogm_emit: send scheduled OGM
Antonio Quartullia3285a82013-09-02 12:15:04 +0200998 * @bat_neigh_cmp: compare the metrics of two neighbors
Antonio Quartullic43c9812013-09-02 12:15:05 +0200999 * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or
1000 * better than neigh2 from the metric prospective
Antonio Quartulli737a2a222013-09-02 12:15:03 +02001001 * @bat_orig_print: print the originator table (optional)
Antonio Quartullid0015fd2013-09-03 11:10:23 +02001002 * @bat_orig_free: free the resources allocated by the routing algorithm for an
1003 * orig_node object
1004 * @bat_orig_add_if: ask the routing algorithm to apply the needed changes to
1005 * the orig_node due to a new hard-interface being added into the mesh
1006 * @bat_orig_del_if: ask the routing algorithm to apply the needed changes to
1007 * the orig_node due to an hard-interface being removed from the mesh
Marek Lindner88a32c92012-12-25 21:45:12 +08001008 */
Sven Eckelmann56303d32012-06-05 22:31:31 +02001009struct batadv_algo_ops {
Marek Lindner1c280472011-11-28 17:40:17 +08001010 struct hlist_node list;
1011 char *name;
Sven Eckelmann56303d32012-06-05 22:31:31 +02001012 int (*bat_iface_enable)(struct batadv_hard_iface *hard_iface);
Sven Eckelmann56303d32012-06-05 22:31:31 +02001013 void (*bat_iface_disable)(struct batadv_hard_iface *hard_iface);
Sven Eckelmann56303d32012-06-05 22:31:31 +02001014 void (*bat_iface_update_mac)(struct batadv_hard_iface *hard_iface);
Sven Eckelmann56303d32012-06-05 22:31:31 +02001015 void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface);
Sven Eckelmann56303d32012-06-05 22:31:31 +02001016 void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface);
Sven Eckelmann56303d32012-06-05 22:31:31 +02001017 void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
Antonio Quartullia3285a82013-09-02 12:15:04 +02001018 int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1,
1019 struct batadv_neigh_node *neigh2);
Antonio Quartullic43c9812013-09-02 12:15:05 +02001020 bool (*bat_neigh_is_equiv_or_better)(struct batadv_neigh_node *neigh1,
1021 struct batadv_neigh_node *neigh2);
Antonio Quartulli737a2a222013-09-02 12:15:03 +02001022 /* orig_node handling API */
1023 void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
Antonio Quartullid0015fd2013-09-03 11:10:23 +02001024 void (*bat_orig_free)(struct batadv_orig_node *orig_node);
1025 int (*bat_orig_add_if)(struct batadv_orig_node *orig_node,
1026 int max_if_num);
1027 int (*bat_orig_del_if)(struct batadv_orig_node *orig_node,
1028 int max_if_num, int del_if_num);
Marek Lindner1c280472011-11-28 17:40:17 +08001029};
1030
Antonio Quartulli785ea112011-11-23 11:35:44 +01001031/**
Antonio Quartulli2f1dfbe2012-06-30 20:01:19 +02001032 * struct batadv_dat_entry - it is a single entry of batman-adv ARP backend. It
1033 * is used to stored ARP entries needed for the global DAT cache
1034 * @ip: the IPv4 corresponding to this DAT/ARP entry
1035 * @mac_addr: the MAC address associated to the stored IPv4
Antonio Quartullibe1db4f2013-06-04 12:11:43 +02001036 * @vid: the vlan ID associated to this entry
Antonio Quartulli2f1dfbe2012-06-30 20:01:19 +02001037 * @last_update: time in jiffies when this entry was refreshed last time
1038 * @hash_entry: hlist node for batadv_priv_dat::hash
1039 * @refcount: number of contexts the object is used
1040 * @rcu: struct used for freeing in an RCU-safe manner
1041 */
1042struct batadv_dat_entry {
1043 __be32 ip;
1044 uint8_t mac_addr[ETH_ALEN];
Antonio Quartullibe1db4f2013-06-04 12:11:43 +02001045 unsigned short vid;
Antonio Quartulli2f1dfbe2012-06-30 20:01:19 +02001046 unsigned long last_update;
1047 struct hlist_node hash_entry;
1048 atomic_t refcount;
1049 struct rcu_head rcu;
1050};
1051
1052/**
Antonio Quartulli785ea112011-11-23 11:35:44 +01001053 * struct batadv_dat_candidate - candidate destination for DAT operations
1054 * @type: the type of the selected candidate. It can one of the following:
1055 * - BATADV_DAT_CANDIDATE_NOT_FOUND
1056 * - BATADV_DAT_CANDIDATE_ORIG
1057 * @orig_node: if type is BATADV_DAT_CANDIDATE_ORIG this field points to the
1058 * corresponding originator node structure
1059 */
1060struct batadv_dat_candidate {
1061 int type;
1062 struct batadv_orig_node *orig_node;
1063};
1064
Marek Lindneref261572013-04-23 21:39:57 +08001065/**
1066 * struct batadv_tvlv_container - container for tvlv appended to OGMs
1067 * @list: hlist node for batadv_priv_tvlv::container_list
1068 * @tvlv_hdr: tvlv header information needed to construct the tvlv
1069 * @value_len: length of the buffer following this struct which contains
1070 * the actual tvlv payload
1071 * @refcount: number of contexts the object is used
1072 */
1073struct batadv_tvlv_container {
1074 struct hlist_node list;
1075 struct batadv_tvlv_hdr tvlv_hdr;
1076 atomic_t refcount;
1077};
1078
1079/**
1080 * struct batadv_tvlv_handler - handler for specific tvlv type and version
1081 * @list: hlist node for batadv_priv_tvlv::handler_list
1082 * @ogm_handler: handler callback which is given the tvlv payload to process on
1083 * incoming OGM packets
1084 * @unicast_handler: handler callback which is given the tvlv payload to process
1085 * on incoming unicast tvlv packets
1086 * @type: tvlv type this handler feels responsible for
1087 * @version: tvlv version this handler feels responsible for
1088 * @flags: tvlv handler flags
1089 * @refcount: number of contexts the object is used
1090 * @rcu: struct used for freeing in an RCU-safe manner
1091 */
1092struct batadv_tvlv_handler {
1093 struct hlist_node list;
1094 void (*ogm_handler)(struct batadv_priv *bat_priv,
1095 struct batadv_orig_node *orig,
1096 uint8_t flags,
1097 void *tvlv_value, uint16_t tvlv_value_len);
1098 int (*unicast_handler)(struct batadv_priv *bat_priv,
1099 uint8_t *src, uint8_t *dst,
1100 void *tvlv_value, uint16_t tvlv_value_len);
1101 uint8_t type;
1102 uint8_t version;
1103 uint8_t flags;
1104 atomic_t refcount;
1105 struct rcu_head rcu;
1106};
1107
1108/**
1109 * enum batadv_tvlv_handler_flags - tvlv handler flags definitions
1110 * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call
1111 * this handler even if its type was not found (with no data)
1112 * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks
1113 * a handler as being called, so it won't be called if the
1114 * BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set
1115 */
1116enum batadv_tvlv_handler_flags {
1117 BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1),
1118 BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
1119};
1120
Sven Eckelmannc6c8fea2010-12-13 11:19:28 +00001121#endif /* _NET_BATMAN_ADV_TYPES_H_ */