2 * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public
8 * License as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #ifndef _NET_BATMAN_ADV_TYPES_H_
25 #define _NET_BATMAN_ADV_TYPES_H_
30 #define BAT_HEADER_LEN (ETH_HLEN + \
31 ((sizeof(struct unicast_packet) > sizeof(struct bcast_packet) ? \
32 sizeof(struct unicast_packet) : \
33 sizeof(struct bcast_packet))))
37 struct list_head list
;
40 struct net_device
*net_dev
;
43 unsigned char *packet_buff
;
45 struct kobject
*hardif_obj
;
47 struct packet_type batman_adv_ptype
;
48 struct net_device
*soft_iface
;
53 * orig_node - structure for orig_list maintaining nodes of mesh
54 * @primary_addr: hosts primary interface address
55 * @last_seen: when last packet from this node was received
56 * @bcast_seqno_reset: time when the broadcast seqno window was reset
57 * @batman_seqno_reset: time when the batman seqno window was reset
58 * @gw_flags: flags related to gateway class
59 * @flags: for now only VIS_SERVER flag
60 * @last_real_seqno: last and best known sequence number
61 * @last_ttl: ttl of last received packet
62 * @last_bcast_seqno: last broadcast sequence number received by this host
64 * @candidates: how many candidates are available
65 * @selected: next bonding candidate
68 uint8_t orig
[ETH_ALEN
];
69 uint8_t primary_addr
[ETH_ALEN
];
70 struct neigh_node __rcu
*router
; /* rcu protected pointer */
71 unsigned long *bcast_own
;
72 uint8_t *bcast_own_sum
;
73 unsigned long last_seen
;
74 unsigned long bcast_seqno_reset
;
75 unsigned long batman_seqno_reset
;
78 atomic_t last_ttvn
; /* last seen translation table version number */
80 unsigned char *tt_buff
;
82 spinlock_t tt_buff_lock
; /* protects tt_buff */
85 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
86 * If true, then I sent a Roaming_adv to this orig_node and I have to
87 * inspect every packet directed to it to check whether it is still
88 * the true destination or not. This flag will be reset to false as
89 * soon as I receive a new TTVN from this orig_node */
91 uint32_t last_real_seqno
;
93 DECLARE_BITMAP(bcast_bits
, TQ_LOCAL_WINDOW_SIZE
);
94 uint32_t last_bcast_seqno
;
95 struct hlist_head neigh_list
;
96 struct list_head frag_list
;
97 spinlock_t neigh_list_lock
; /* protects neigh_list and router */
100 struct hlist_node hash_entry
;
101 struct bat_priv
*bat_priv
;
102 unsigned long last_frag_packet
;
103 /* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
104 * neigh_node->real_bits, neigh_node->real_packet_count */
105 spinlock_t ogm_cnt_lock
;
106 /* bcast_seqno_lock protects bcast_bits, last_bcast_seqno */
107 spinlock_t bcast_seqno_lock
;
108 spinlock_t tt_list_lock
; /* protects tt_list */
109 atomic_t bond_candidates
;
110 struct list_head bond_list
;
114 struct hlist_node list
;
115 struct orig_node
*orig_node
;
116 unsigned long deleted
;
123 * @last_seen: when last packet via this neighbor was received
126 struct hlist_node list
;
127 uint8_t addr
[ETH_ALEN
];
128 uint8_t real_packet_count
;
129 uint8_t tq_recv
[TQ_GLOBAL_WINDOW_SIZE
];
133 struct list_head bonding_list
;
134 unsigned long last_seen
;
135 DECLARE_BITMAP(real_bits
, TQ_LOCAL_WINDOW_SIZE
);
138 struct orig_node
*orig_node
;
139 struct hard_iface
*if_incoming
;
140 spinlock_t lq_update_lock
; /* protects: tq_recv, tq_index */
143 #ifdef CONFIG_BATMAN_ADV_BLA
144 struct bcast_duplist_entry
{
145 uint8_t orig
[ETH_ALEN
];
147 unsigned long entrytime
;
153 BAT_CNT_FORWARD_BYTES
,
155 BAT_CNT_MGMT_TX_BYTES
,
157 BAT_CNT_MGMT_RX_BYTES
,
158 BAT_CNT_TT_REQUEST_TX
,
159 BAT_CNT_TT_REQUEST_RX
,
160 BAT_CNT_TT_RESPONSE_TX
,
161 BAT_CNT_TT_RESPONSE_RX
,
162 BAT_CNT_TT_ROAM_ADV_TX
,
163 BAT_CNT_TT_ROAM_ADV_RX
,
169 struct net_device_stats stats
;
170 uint64_t __percpu
*bat_counters
; /* Per cpu counters */
171 atomic_t aggregated_ogms
; /* boolean */
172 atomic_t bonding
; /* boolean */
173 atomic_t fragmentation
; /* boolean */
174 atomic_t ap_isolation
; /* boolean */
175 atomic_t bridge_loop_avoidance
; /* boolean */
176 atomic_t vis_mode
; /* VIS_TYPE_* */
177 atomic_t gw_mode
; /* GW_MODE_* */
178 atomic_t gw_sel_class
; /* uint */
179 atomic_t gw_bandwidth
; /* gw bandwidth */
180 atomic_t orig_interval
; /* uint */
181 atomic_t hop_penalty
; /* uint */
182 atomic_t log_level
; /* uint */
183 atomic_t bcast_seqno
;
184 atomic_t bcast_queue_left
;
185 atomic_t batman_queue_left
;
186 atomic_t ttvn
; /* translation table version number */
187 atomic_t tt_ogm_append_cnt
;
188 atomic_t tt_local_changes
; /* changes registered in a OGM interval */
189 atomic_t bla_num_requests
; /* number of bla requests in flight */
190 /* The tt_poss_change flag is used to detect an ongoing roaming phase.
191 * If true, then I received a Roaming_adv and I have to inspect every
192 * packet directed to me to check whether I am still the true
193 * destination or not. This flag will be reset to false as soon as I
194 * increase my TTVN */
197 struct debug_log
*debug_log
;
198 struct kobject
*mesh_obj
;
199 struct dentry
*debug_dir
;
200 struct hlist_head forw_bat_list
;
201 struct hlist_head forw_bcast_list
;
202 struct hlist_head gw_list
;
203 struct list_head tt_changes_list
; /* tracks changes in a OGM int */
204 struct list_head vis_send_list
;
205 struct hashtable_t
*orig_hash
;
206 struct hashtable_t
*tt_local_hash
;
207 struct hashtable_t
*tt_global_hash
;
208 #ifdef CONFIG_BATMAN_ADV_BLA
209 struct hashtable_t
*claim_hash
;
210 struct hashtable_t
*backbone_hash
;
212 struct list_head tt_req_list
; /* list of pending tt_requests */
213 struct list_head tt_roam_list
;
214 struct hashtable_t
*vis_hash
;
215 #ifdef CONFIG_BATMAN_ADV_BLA
216 struct bcast_duplist_entry bcast_duplist
[DUPLIST_SIZE
];
217 int bcast_duplist_curr
;
218 struct bla_claim_dst claim_dest
;
220 spinlock_t forw_bat_list_lock
; /* protects forw_bat_list */
221 spinlock_t forw_bcast_list_lock
; /* protects */
222 spinlock_t tt_changes_list_lock
; /* protects tt_changes */
223 spinlock_t tt_req_list_lock
; /* protects tt_req_list */
224 spinlock_t tt_roam_list_lock
; /* protects tt_roam_list */
225 spinlock_t gw_list_lock
; /* protects gw_list and curr_gw */
226 spinlock_t vis_hash_lock
; /* protects vis_hash */
227 spinlock_t vis_list_lock
; /* protects vis_info::recv_list */
228 atomic_t num_local_tt
;
229 /* Checksum of the local table, recomputed before sending a new OGM */
231 unsigned char *tt_buff
;
233 spinlock_t tt_buff_lock
; /* protects tt_buff */
234 struct delayed_work tt_work
;
235 struct delayed_work orig_work
;
236 struct delayed_work vis_work
;
237 struct delayed_work bla_work
;
238 struct gw_node __rcu
*curr_gw
; /* rcu protected pointer */
239 atomic_t gw_reselect
;
240 struct hard_iface __rcu
*primary_if
; /* rcu protected pointer */
241 struct vis_info
*my_vis_info
;
242 struct bat_algo_ops
*bat_algo_ops
;
245 struct socket_client
{
246 struct list_head queue_list
;
247 unsigned int queue_len
;
249 spinlock_t lock
; /* protects queue_list, queue_len, index */
250 wait_queue_head_t queue_wait
;
251 struct bat_priv
*bat_priv
;
254 struct socket_packet
{
255 struct list_head list
;
257 struct icmp_packet_rr icmp_packet
;
260 struct tt_common_entry
{
261 uint8_t addr
[ETH_ALEN
];
262 struct hlist_node hash_entry
;
268 struct tt_local_entry
{
269 struct tt_common_entry common
;
270 unsigned long last_seen
;
273 struct tt_global_entry
{
274 struct tt_common_entry common
;
275 struct hlist_head orig_list
;
276 spinlock_t list_lock
; /* protects the list */
277 unsigned long roam_at
; /* time at which TT_GLOBAL_ROAM was set */
280 struct tt_orig_list_entry
{
281 struct orig_node
*orig_node
;
284 struct hlist_node list
;
287 #ifdef CONFIG_BATMAN_ADV_BLA
289 uint8_t orig
[ETH_ALEN
];
290 short vid
; /* used VLAN ID */
291 struct hlist_node hash_entry
;
292 struct bat_priv
*bat_priv
;
293 unsigned long lasttime
; /* last time we heard of this backbone gw */
294 atomic_t request_sent
;
297 uint16_t crc
; /* crc checksum over all claims */
301 uint8_t addr
[ETH_ALEN
];
303 struct backbone_gw
*backbone_gw
;
304 unsigned long lasttime
; /* last time we heard of claim (locals only) */
307 struct hlist_node hash_entry
;
311 struct tt_change_node
{
312 struct list_head list
;
313 struct tt_change change
;
317 uint8_t addr
[ETH_ALEN
];
318 unsigned long issued_at
;
319 struct list_head list
;
322 struct tt_roam_node
{
323 uint8_t addr
[ETH_ALEN
];
325 unsigned long first_time
;
326 struct list_head list
;
330 * forw_packet - structure for forw_list maintaining packets to be
334 struct hlist_node list
;
335 unsigned long send_time
;
339 uint32_t direct_link_flags
;
341 struct delayed_work delayed_work
;
342 struct hard_iface
*if_incoming
;
345 /* While scanning for vis-entries of a particular vis-originator
346 * this list collects its interfaces to create a subgraph/cluster
349 struct if_list_entry
{
350 uint8_t addr
[ETH_ALEN
];
352 struct hlist_node list
;
356 char log_buff
[LOG_BUF_LEN
];
357 unsigned long log_start
;
358 unsigned long log_end
;
359 spinlock_t lock
; /* protects log_buff, log_start and log_end */
360 wait_queue_head_t queue_wait
;
363 struct frag_packet_list_entry
{
364 struct list_head list
;
370 unsigned long first_seen
;
371 /* list of server-neighbors we received a vis-packet
372 * from. we should not reply to them. */
373 struct list_head recv_list
;
374 struct list_head send_list
;
375 struct kref refcount
;
376 struct hlist_node hash_entry
;
377 struct bat_priv
*bat_priv
;
378 /* this packet might be part of the vis send queue. */
379 struct sk_buff
*skb_packet
;
380 /* vis_info may follow here*/
383 struct vis_info_entry
{
384 uint8_t src
[ETH_ALEN
];
385 uint8_t dest
[ETH_ALEN
];
386 uint8_t quality
; /* quality = 0 client */
389 struct recvlist_node
{
390 struct list_head list
;
391 uint8_t mac
[ETH_ALEN
];
394 struct bat_algo_ops
{
395 struct hlist_node list
;
397 /* init routing info when hard-interface is enabled */
398 int (*bat_iface_enable
)(struct hard_iface
*hard_iface
);
399 /* de-init routing info when hard-interface is disabled */
400 void (*bat_iface_disable
)(struct hard_iface
*hard_iface
);
401 /* (re-)init mac addresses of the protocol information
402 * belonging to this hard-interface
404 void (*bat_iface_update_mac
)(struct hard_iface
*hard_iface
);
405 /* called when primary interface is selected / changed */
406 void (*bat_primary_iface_set
)(struct hard_iface
*hard_iface
);
407 /* prepare a new outgoing OGM for the send queue */
408 void (*bat_ogm_schedule
)(struct hard_iface
*hard_iface
,
410 /* send scheduled OGM */
411 void (*bat_ogm_emit
)(struct forw_packet
*forw_packet
);
414 #endif /* _NET_BATMAN_ADV_TYPES_H_ */