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Bluetooth: Use the same timeouts for both ACL and LE links
[linux-2.6-block.git] / include / net / bluetooth / hci_core.h
CommitLineData
04fafe4e 1/*
1da177e4 2 BlueZ - Bluetooth protocol stack for Linux
2d0a0346 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
1da177e4
LT		 4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
04fafe4e
RS		 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1da177e4
LT		 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
04fafe4e
RS		 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4
LT		 22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_CORE_H
26#define __HCI_CORE_H
27
a6b7a407 28#include <linux/interrupt.h>
1da177e4
LT		 29#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
1da177e4 35/* HCI Core structures */
1da177e4
LT		 36struct inquiry_data {
37 bdaddr_t bdaddr;
38 __u8 pscan_rep_mode;
39 __u8 pscan_period_mode;
40 __u8 pscan_mode;
41 __u8 dev_class[3];
1ebb9252 42 __le16 clock_offset;
1da177e4 43 __s8 rssi;
41a96212 44 __u8 ssp_mode;
1da177e4
LT		 45};
46
47struct inquiry_entry {
70f23020 48 struct inquiry_entry *next;
1da177e4
LT		 49 __u32 timestamp;
50 struct inquiry_data data;
51};
52
53struct inquiry_cache {
70f23020 54 spinlock_t lock;
1da177e4 55 __u32 timestamp;
70f23020 56 struct inquiry_entry *list;
1da177e4
LT		 57};
58
59struct hci_conn_hash {
60 struct list_head list;
61 spinlock_t lock;
62 unsigned int acl_num;
63 unsigned int sco_num;
fcd89c09 64 unsigned int le_num;
1da177e4
LT		 65};
66
f0358568
JH		 67struct bdaddr_list {
68 struct list_head list;
69 bdaddr_t bdaddr;
70};
2aeb9a1a
JH		 71
72struct bt_uuid {
73 struct list_head list;
74 u8 uuid[16];
1aff6f09 75 u8 svc_hint;
2aeb9a1a
JH		 76};
77
34918cd7
VCG		 78struct key_master_id {
79 __le16 ediv;
80 u8 rand[8];
81} __packed;
82
83struct link_key_data {
84 bdaddr_t bdaddr;
85 u8 type;
86 u8 val[16];
87 u8 pin_len;
88 u8 dlen;
89 u8 data[0];
90} __packed;
91
55ed8ca1
JH		 92struct link_key {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 type;
96 u8 val[16];
97 u8 pin_len;
34918cd7
VCG		 98 u8 dlen;
99 u8 data[0];
55ed8ca1
JH		 100};
101
2763eda6
SJ		 102struct oob_data {
103 struct list_head list;
104 bdaddr_t bdaddr;
105 u8 hash[16];
106 u8 randomizer[16];
107};
108
76c8686f
AG		 109struct adv_entry {
110 struct list_head list;
111 bdaddr_t bdaddr;
112 u8 bdaddr_type;
113};
114
cd4c5391 115#define NUM_REASSEMBLY 4
1da177e4
LT		 116struct hci_dev {
117 struct list_head list;
118 spinlock_t lock;
119 atomic_t refcnt;
120
121 char name[8];
122 unsigned long flags;
123 __u16 id;
c13854ce 124 __u8 bus;
943da25d 125 __u8 dev_type;
1da177e4 126 bdaddr_t bdaddr;
1f6c6378 127 __u8 dev_name[HCI_MAX_NAME_LENGTH];
80a1e1db 128 __u8 eir[HCI_MAX_EIR_LENGTH];
a9de9248 129 __u8 dev_class[3];
1aff6f09
JH		 130 __u8 major_class;
131 __u8 minor_class;
1da177e4 132 __u8 features[8];
971e3a4b 133 __u8 extfeatures[8];
a9de9248 134 __u8 commands[64];
333140b5 135 __u8 ssp_mode;
1143e5a6
MH		 136 __u8 hci_ver;
137 __u16 hci_rev;
d5859e22 138 __u8 lmp_ver;
1143e5a6 139 __u16 manufacturer;
d5859e22 140 __le16 lmp_subver;
1da177e4 141 __u16 voice_setting;
17fa4b9d 142 __u8 io_capability;
1da177e4
LT		 143
144 __u16 pkt_type;
5b7f9909 145 __u16 esco_type;
1da177e4
LT		 146 __u16 link_policy;
147 __u16 link_mode;
148
04837f64
MH		 149 __u32 idle_timeout;
150 __u16 sniff_min_interval;
151 __u16 sniff_max_interval;
152
9f61656a
JH		 153 unsigned int auto_accept_delay;
154
1da177e4
LT		 155 unsigned long quirks;
156
157 atomic_t cmd_cnt;
158 unsigned int acl_cnt;
159 unsigned int sco_cnt;
6ed58ec5 160 unsigned int le_cnt;
1da177e4
LT		 161
162 unsigned int acl_mtu;
163 unsigned int sco_mtu;
6ed58ec5 164 unsigned int le_mtu;
1da177e4
LT		 165 unsigned int acl_pkts;
166 unsigned int sco_pkts;
6ed58ec5 167 unsigned int le_pkts;
1da177e4 168
1da177e4
LT		 169 unsigned long acl_last_tx;
170 unsigned long sco_last_tx;
6ed58ec5 171 unsigned long le_last_tx;
1da177e4 172
f48fd9c8
MH		 173 struct workqueue_struct *workqueue;
174
ab81cbf9
JH		 175 struct work_struct power_on;
176 struct work_struct power_off;
177 struct timer_list off_timer;
178
6bd32326 179 struct timer_list cmd_timer;
1da177e4
LT		 180 struct tasklet_struct cmd_task;
181 struct tasklet_struct rx_task;
182 struct tasklet_struct tx_task;
183
184 struct sk_buff_head rx_q;
185 struct sk_buff_head raw_q;
186 struct sk_buff_head cmd_q;
187
188 struct sk_buff *sent_cmd;
cd4c5391 189 struct sk_buff *reassembly[NUM_REASSEMBLY];
1da177e4 190
a6a67efd 191 struct mutex req_lock;
1da177e4
LT		 192 wait_queue_head_t req_wait_q;
193 __u32 req_status;
194 __u32 req_result;
a5040efa
JH		 195
196 __u16 init_last_cmd;
1da177e4 197
3a0259bb
VCG		 198 struct crypto_blkcipher *tfm;
199
1da177e4
LT		 200 struct inquiry_cache inq_cache;
201 struct hci_conn_hash conn_hash;
ea4bd8ba 202 struct list_head blacklist;
1da177e4 203
2aeb9a1a
JH		 204 struct list_head uuids;
205
55ed8ca1
JH		 206 struct list_head link_keys;
207
2763eda6
SJ		 208 struct list_head remote_oob_data;
209
76c8686f 210 struct list_head adv_entries;
35815085 211 struct timer_list adv_timer;
76c8686f 212
1da177e4
LT		 213 struct hci_dev_stats stat;
214
215 struct sk_buff_head driver_init;
216
217 void *driver_data;
218 void *core_data;
219
70f23020 220 atomic_t promisc;
1da177e4 221
ca325f69
MH		 222 struct dentry *debugfs;
223
a91f2e39
MH		 224 struct device *parent;
225 struct device dev;
1da177e4 226
611b30f7
MH		 227 struct rfkill *rfkill;
228
70f23020 229 struct module *owner;
1da177e4
LT		 230
231 int (*open)(struct hci_dev *hdev);
232 int (*close)(struct hci_dev *hdev);
233 int (*flush)(struct hci_dev *hdev);
234 int (*send)(struct sk_buff *skb);
235 void (*destruct)(struct hci_dev *hdev);
236 void (*notify)(struct hci_dev *hdev, unsigned int evt);
237 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
238};
239
240struct hci_conn {
241 struct list_head list;
242
adc4266d 243 atomic_t refcnt;
adc4266d
SJ		 244
245 bdaddr_t dst;
5a9d0a3f 246 __u8 dst_type;
adc4266d
SJ		 247 __u16 handle;
248 __u16 state;
249 __u8 mode;
250 __u8 type;
251 __u8 out;
252 __u8 attempt;
253 __u8 dev_class[3];
254 __u8 features[8];
255 __u8 ssp_mode;
256 __u16 interval;
257 __u16 pkt_type;
258 __u16 link_policy;
259 __u32 link_mode;
13d39315 260 __u8 key_type;
adc4266d
SJ		 261 __u8 auth_type;
262 __u8 sec_level;
263 __u8 pending_sec_level;
264 __u8 pin_length;
726b4ffc 265 __u8 enc_key_size;
adc4266d
SJ		 266 __u8 io_capability;
267 __u8 power_save;
268 __u16 disc_timeout;
269 unsigned long pend;
04837f64 270
03b555e1
JH		 271 __u8 remote_cap;
272 __u8 remote_oob;
273 __u8 remote_auth;
274
adc4266d 275 unsigned int sent;
04837f64 276
1da177e4
LT		 277 struct sk_buff_head data_q;
278
04837f64
MH		 279 struct timer_list disc_timer;
280 struct timer_list idle_timer;
9f61656a 281 struct timer_list auto_accept_timer;
04837f64 282
f3784d83
RQ		 283 struct work_struct work_add;
284 struct work_struct work_del;
b219e3ac
MH		 285
286 struct device dev;
9eba32b8 287 atomic_t devref;
b219e3ac 288
1da177e4
LT		 289 struct hci_dev *hdev;
290 void *l2cap_data;
291 void *sco_data;
1da177e4
LT		 292
293 struct hci_conn *link;
e9a416b5
JH		 294
295 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
296 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
297 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
1da177e4
LT		 298};
299
300extern struct hci_proto *hci_proto[];
301extern struct list_head hci_dev_list;
302extern struct list_head hci_cb_list;
303extern rwlock_t hci_dev_list_lock;
304extern rwlock_t hci_cb_list_lock;
305
306/* ----- Inquiry cache ----- */
70f23020
AE		 307#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
308#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
1da177e4
LT		 309
310#define inquiry_cache_lock(c) spin_lock(&c->lock)
311#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
312#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
313#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
314
315static inline void inquiry_cache_init(struct hci_dev *hdev)
316{
317 struct inquiry_cache *c = &hdev->inq_cache;
318 spin_lock_init(&c->lock);
319 c->list = NULL;
320}
321
322static inline int inquiry_cache_empty(struct hci_dev *hdev)
323{
324 struct inquiry_cache *c = &hdev->inq_cache;
a02cec21 325 return c->list == NULL;
1da177e4
LT		 326}
327
328static inline long inquiry_cache_age(struct hci_dev *hdev)
329{
330 struct inquiry_cache *c = &hdev->inq_cache;
331 return jiffies - c->timestamp;
332}
333
334static inline long inquiry_entry_age(struct inquiry_entry *e)
335{
336 return jiffies - e->timestamp;
337}
338
5a9d0a3f
WR		 339struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
340 bdaddr_t *bdaddr);
1da177e4
LT		 341void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
342
343/* ----- HCI Connections ----- */
344enum {
345 HCI_CONN_AUTH_PEND,
19f8def0 346 HCI_CONN_REAUTH_PEND,
1da177e4 347 HCI_CONN_ENCRYPT_PEND,
04837f64
MH		 348 HCI_CONN_RSWITCH_PEND,
349 HCI_CONN_MODE_CHANGE_PEND,
e73439d8 350 HCI_CONN_SCO_SETUP_PEND,
d26a2345 351 HCI_CONN_LE_SMP_PEND,
1da177e4
LT		 352};
353
354static inline void hci_conn_hash_init(struct hci_dev *hdev)
355{
356 struct hci_conn_hash *h = &hdev->conn_hash;
357 INIT_LIST_HEAD(&h->list);
358 spin_lock_init(&h->lock);
359 h->acl_num = 0;
360 h->sco_num = 0;
361}
362
363static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
364{
365 struct hci_conn_hash *h = &hdev->conn_hash;
366 list_add(&c->list, &h->list);
fcd89c09
VT		 367 switch (c->type) {
368 case ACL_LINK:
1da177e4 369 h->acl_num++;
fcd89c09
VT		 370 break;
371 case LE_LINK:
372 h->le_num++;
373 break;
374 case SCO_LINK:
375 case ESCO_LINK:
1da177e4 376 h->sco_num++;
fcd89c09
VT		 377 break;
378 }
1da177e4
LT		 379}
380
381static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
382{
383 struct hci_conn_hash *h = &hdev->conn_hash;
384 list_del(&c->list);
fcd89c09
VT		 385 switch (c->type) {
386 case ACL_LINK:
1da177e4 387 h->acl_num--;
fcd89c09
VT		 388 break;
389 case LE_LINK:
390 h->le_num--;
391 break;
392 case SCO_LINK:
393 case ESCO_LINK:
1da177e4 394 h->sco_num--;
fcd89c09
VT		 395 break;
396 }
1da177e4
LT		 397}
398
52087a79
LAD		 399static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
400{
401 struct hci_conn_hash *h = &hdev->conn_hash;
402 switch (type) {
403 case ACL_LINK:
404 return h->acl_num;
405 case LE_LINK:
406 return h->le_num;
407 case SCO_LINK:
408 case ESCO_LINK:
409 return h->sco_num;
410 default:
411 return 0;
412 }
413}
414
1da177e4 415static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
adc4266d 416 __u16 handle)
1da177e4
LT		 417{
418 struct hci_conn_hash *h = &hdev->conn_hash;
419 struct list_head *p;
420 struct hci_conn *c;
421
422 list_for_each(p, &h->list) {
423 c = list_entry(p, struct hci_conn, list);
424 if (c->handle == handle)
425 return c;
426 }
427 return NULL;
428}
429
430static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
adc4266d 431 __u8 type, bdaddr_t *ba)
1da177e4
LT		 432{
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 struct list_head *p;
435 struct hci_conn *c;
436
437 list_for_each(p, &h->list) {
438 c = list_entry(p, struct hci_conn, list);
439 if (c->type == type && !bacmp(&c->dst, ba))
440 return c;
441 }
442 return NULL;
443}
444
4c67bc74 445static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
adc4266d 446 __u8 type, __u16 state)
4c67bc74
MH		 447{
448 struct hci_conn_hash *h = &hdev->conn_hash;
449 struct list_head *p;
450 struct hci_conn *c;
451
452 list_for_each(p, &h->list) {
453 c = list_entry(p, struct hci_conn, list);
454 if (c->type == type && c->state == state)
455 return c;
456 }
457 return NULL;
458}
459
460void hci_acl_connect(struct hci_conn *conn);
1da177e4
LT		 461void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
462void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82 463void hci_setup_sync(struct hci_conn *conn, __u16 handle);
e73439d8 464void hci_sco_setup(struct hci_conn *conn, __u8 status);
1da177e4
LT		 465
466struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
a9de9248
MH		 467int hci_conn_del(struct hci_conn *conn);
468void hci_conn_hash_flush(struct hci_dev *hdev);
469void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4 470
5a9d0a3f
WR		 471struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
472 __u8 sec_level, __u8 auth_type);
e7c29cb1 473int hci_conn_check_link_mode(struct hci_conn *conn);
b3b1b061 474int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
0684e5f9 475int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4 476int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355 477int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4 478
14b12d0b 479void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
04837f64 480void hci_conn_enter_sniff_mode(struct hci_conn *conn);
1da177e4 481
9eba32b8
MH		 482void hci_conn_hold_device(struct hci_conn *conn);
483void hci_conn_put_device(struct hci_conn *conn);
484
1da177e4
LT		 485static inline void hci_conn_hold(struct hci_conn *conn)
486{
487 atomic_inc(&conn->refcnt);
04837f64 488 del_timer(&conn->disc_timer);
1da177e4
LT		 489}
490
491static inline void hci_conn_put(struct hci_conn *conn)
492{
493 if (atomic_dec_and_test(&conn->refcnt)) {
04837f64 494 unsigned long timeo;
454d48ff 495 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
04837f64 496 del_timer(&conn->idle_timer);
6ac59344 497 if (conn->state == BT_CONNECTED) {
052b30b0 498 timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344 499 if (!conn->out)
052b30b0 500 timeo *= 2;
5a9d0a3f 501 } else {
6ac59344 502 timeo = msecs_to_jiffies(10);
5a9d0a3f
WR		 503 }
504 } else {
04837f64 505 timeo = msecs_to_jiffies(10);
5a9d0a3f 506 }
04837f64 507 mod_timer(&conn->disc_timer, jiffies + timeo);
1da177e4
LT		 508 }
509}
510
1da177e4
LT		 511/* ----- HCI Devices ----- */
512static inline void __hci_dev_put(struct hci_dev *d)
513{
514 if (atomic_dec_and_test(&d->refcnt))
515 d->destruct(d);
516}
517
518static inline void hci_dev_put(struct hci_dev *d)
04fafe4e 519{
1da177e4
LT		 520 __hci_dev_put(d);
521 module_put(d->owner);
522}
523
524static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
525{
526 atomic_inc(&d->refcnt);
527 return d;
528}
529
530static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
531{
532 if (try_module_get(d->owner))
533 return __hci_dev_hold(d);
534 return NULL;
535}
536
537#define hci_dev_lock(d) spin_lock(&d->lock)
538#define hci_dev_unlock(d) spin_unlock(&d->lock)
539#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
540#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
541
542struct hci_dev *hci_dev_get(int index);
543struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
544
545struct hci_dev *hci_alloc_dev(void);
546void hci_free_dev(struct hci_dev *hdev);
547int hci_register_dev(struct hci_dev *hdev);
548int hci_unregister_dev(struct hci_dev *hdev);
549int hci_suspend_dev(struct hci_dev *hdev);
550int hci_resume_dev(struct hci_dev *hdev);
551int hci_dev_open(__u16 dev);
552int hci_dev_close(__u16 dev);
553int hci_dev_reset(__u16 dev);
554int hci_dev_reset_stat(__u16 dev);
555int hci_dev_cmd(unsigned int cmd, void __user *arg);
556int hci_get_dev_list(void __user *arg);
557int hci_get_dev_info(void __user *arg);
558int hci_get_conn_list(void __user *arg);
559int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
40be492f 560int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1da177e4
LT		 561int hci_inquiry(void __user *arg);
562
f0358568
JH		 563struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
564int hci_blacklist_clear(struct hci_dev *hdev);
b2a66aad
AJ		 565int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
566int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
f0358568 567
2aeb9a1a
JH		 568int hci_uuids_clear(struct hci_dev *hdev);
569
55ed8ca1
JH		 570int hci_link_keys_clear(struct hci_dev *hdev);
571struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
d25e28ab
JH		 572int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
573 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
75d262c2
VCG		 574struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
575struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
576 bdaddr_t *bdaddr, u8 type);
577int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
726b4ffc 578 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
55ed8ca1
JH		 579int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
580
2763eda6
SJ		 581int hci_remote_oob_data_clear(struct hci_dev *hdev);
582struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
583 bdaddr_t *bdaddr);
584int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
585 u8 *randomizer);
586int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
587
35815085 588#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
76c8686f
AG		 589int hci_adv_entries_clear(struct hci_dev *hdev);
590struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
591int hci_add_adv_entry(struct hci_dev *hdev,
592 struct hci_ev_le_advertising_info *ev);
593
ab81cbf9
JH		 594void hci_del_off_timer(struct hci_dev *hdev);
595
1da177e4
LT		 596void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
597
76bca880 598int hci_recv_frame(struct sk_buff *skb);
ef222013 599int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
99811510 600int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
ef222013 601
1da177e4
LT		 602int hci_register_sysfs(struct hci_dev *hdev);
603void hci_unregister_sysfs(struct hci_dev *hdev);
a67e899c 604void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac
MH		 605void hci_conn_add_sysfs(struct hci_conn *conn);
606void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4 607
a91f2e39 608#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4
LT		 609
610/* ----- LMP capabilities ----- */
04837f64
MH		 611#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
612#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
613#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
614#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909 615#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974 616#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
e702112f 617#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
6ed58ec5 618#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
1da177e4 619
eead27da
AG		 620/* ----- Extended LMP capabilities ----- */
621#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
622
1da177e4
LT		 623/* ----- HCI protocols ----- */
624struct hci_proto {
8c1b2355 625 char *name;
1da177e4
LT		 626 unsigned int id;
627 unsigned long flags;
628
629 void *priv;
630
5a9d0a3f
WR		 631 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
632 __u8 type);
1da177e4 633 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
2950f21a
MH		 634 int (*disconn_ind) (struct hci_conn *conn);
635 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
5a9d0a3f
WR		 636 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
637 __u16 flags);
1da177e4 638 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
5a9d0a3f
WR		 639 int (*security_cfm) (struct hci_conn *conn, __u8 status,
640 __u8 encrypt);
1da177e4
LT		 641};
642
5a9d0a3f
WR		 643static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
644 __u8 type)
1da177e4
LT		 645{
646 register struct hci_proto *hp;
647 int mask = 0;
8c1b2355 648
1da177e4
LT		 649 hp = hci_proto[HCI_PROTO_L2CAP];
650 if (hp && hp->connect_ind)
651 mask |= hp->connect_ind(hdev, bdaddr, type);
652
653 hp = hci_proto[HCI_PROTO_SCO];
654 if (hp && hp->connect_ind)
655 mask |= hp->connect_ind(hdev, bdaddr, type);
656
657 return mask;
658}
659
660static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
661{
662 register struct hci_proto *hp;
663
664 hp = hci_proto[HCI_PROTO_L2CAP];
665 if (hp && hp->connect_cfm)
666 hp->connect_cfm(conn, status);
667
668 hp = hci_proto[HCI_PROTO_SCO];
669 if (hp && hp->connect_cfm)
670 hp->connect_cfm(conn, status);
e9a416b5
JH		 671
672 if (conn->connect_cfm_cb)
673 conn->connect_cfm_cb(conn, status);
1da177e4
LT		 674}
675
2950f21a 676static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4
LT		 677{
678 register struct hci_proto *hp;
2950f21a 679 int reason = 0x13;
1da177e4
LT		 680
681 hp = hci_proto[HCI_PROTO_L2CAP];
682 if (hp && hp->disconn_ind)
2950f21a 683 reason = hp->disconn_ind(conn);
1da177e4
LT		 684
685 hp = hci_proto[HCI_PROTO_SCO];
686 if (hp && hp->disconn_ind)
2950f21a
MH		 687 reason = hp->disconn_ind(conn);
688
689 return reason;
690}
691
692static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
693{
694 register struct hci_proto *hp;
695
696 hp = hci_proto[HCI_PROTO_L2CAP];
697 if (hp && hp->disconn_cfm)
698 hp->disconn_cfm(conn, reason);
699
700 hp = hci_proto[HCI_PROTO_SCO];
701 if (hp && hp->disconn_cfm)
702 hp->disconn_cfm(conn, reason);
e9a416b5
JH		 703
704 if (conn->disconn_cfm_cb)
705 conn->disconn_cfm_cb(conn, reason);
1da177e4
LT		 706}
707
708static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
709{
710 register struct hci_proto *hp;
8c1b2355
MH		 711 __u8 encrypt;
712
713 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
714 return;
715
716 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4
LT		 717
718 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 719 if (hp && hp->security_cfm)
720 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 721
722 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 723 if (hp && hp->security_cfm)
724 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 725
726 if (conn->security_cfm_cb)
727 conn->security_cfm_cb(conn, status);
1da177e4
LT		 728}
729
5a9d0a3f
WR		 730static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
731 __u8 encrypt)
1da177e4
LT		 732{
733 register struct hci_proto *hp;
734
735 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 736 if (hp && hp->security_cfm)
737 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 738
739 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 740 if (hp && hp->security_cfm)
741 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 742
743 if (conn->security_cfm_cb)
744 conn->security_cfm_cb(conn, status);
1da177e4
LT		 745}
746
747int hci_register_proto(struct hci_proto *hproto);
748int hci_unregister_proto(struct hci_proto *hproto);
749
750/* ----- HCI callbacks ----- */
751struct hci_cb {
752 struct list_head list;
753
754 char *name;
755
5a9d0a3f
WR		 756 void (*security_cfm) (struct hci_conn *conn, __u8 status,
757 __u8 encrypt);
1da177e4
LT		 758 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
759 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
760};
761
762static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
763{
764 struct list_head *p;
8c1b2355 765 __u8 encrypt;
1da177e4
LT		 766
767 hci_proto_auth_cfm(conn, status);
768
8c1b2355
MH		 769 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
770 return;
771
772 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
773
1da177e4
LT		 774 read_lock_bh(&hci_cb_list_lock);
775 list_for_each(p, &hci_cb_list) {
776 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 777 if (cb->security_cfm)
778 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 779 }
780 read_unlock_bh(&hci_cb_list_lock);
781}
782
5a9d0a3f
WR		 783static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
784 __u8 encrypt)
1da177e4
LT		 785{
786 struct list_head *p;
787
435fef20
MH		 788 if (conn->sec_level == BT_SECURITY_SDP)
789 conn->sec_level = BT_SECURITY_LOW;
790
88167aed
VCG		 791 if (conn->pending_sec_level > conn->sec_level)
792 conn->sec_level = conn->pending_sec_level;
793
9719f8af 794 hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4
LT		 795
796 read_lock_bh(&hci_cb_list_lock);
797 list_for_each(p, &hci_cb_list) {
798 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 799 if (cb->security_cfm)
800 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 801 }
802 read_unlock_bh(&hci_cb_list_lock);
803}
804
805static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
806{
807 struct list_head *p;
808
809 read_lock_bh(&hci_cb_list_lock);
810 list_for_each(p, &hci_cb_list) {
811 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
812 if (cb->key_change_cfm)
813 cb->key_change_cfm(conn, status);
814 }
815 read_unlock_bh(&hci_cb_list_lock);
816}
817
5a9d0a3f
WR		 818static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
819 __u8 role)
1da177e4
LT		 820{
821 struct list_head *p;
822
823 read_lock_bh(&hci_cb_list_lock);
824 list_for_each(p, &hci_cb_list) {
825 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
826 if (cb->role_switch_cfm)
827 cb->role_switch_cfm(conn, status, role);
828 }
829 read_unlock_bh(&hci_cb_list_lock);
830}
831
832int hci_register_cb(struct hci_cb *hcb);
833int hci_unregister_cb(struct hci_cb *hcb);
834
835int hci_register_notifier(struct notifier_block *nb);
836int hci_unregister_notifier(struct notifier_block *nb);
837
a9de9248 838int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
9a9c6a34 839void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
0d861d8b 840void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1da177e4 841
a9de9248 842void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1da177e4
LT		 843
844void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
845
846/* ----- HCI Sockets ----- */
eec8d2bc
JH		 847void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
848 struct sock *skip_sk);
1da177e4 849
0381101f
JH		 850/* Management interface */
851int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
c71e97bf
JH		 852int mgmt_index_added(u16 index);
853int mgmt_index_removed(u16 index);
5add6af8 854int mgmt_powered(u16 index, u8 powered);
73f22f62 855int mgmt_discoverable(u16 index, u8 discoverable);
9fbcbb45 856int mgmt_connectable(u16 index, u8 connectable);
4df378a1 857int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
f7520543
JH		 858int mgmt_connected(u16 index, bdaddr_t *bdaddr);
859int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
8962ee74 860int mgmt_disconnect_failed(u16 index);
17d5c04c 861int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
a770bb5a 862int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
980e1a53
JH		 863int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
864int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
55bc1a37
JH		 865int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
866 u8 confirm_hint);
a5c29683
JH		 867int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
868int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
869 u8 status);
2a611692 870int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
b312b161 871int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
c35938b2
SJ		 872int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
873 u8 status);
e17acd40
JH		 874int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
875 u8 *eir);
a88a9652 876int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
314b2381 877int mgmt_discovering(u16 index, u8 discovering);
0381101f 878
1da177e4
LT		 879/* HCI info for socket */
880#define hci_pi(sk) ((struct hci_pinfo *) sk)
881
882struct hci_pinfo {
883 struct bt_sock bt;
884 struct hci_dev *hdev;
885 struct hci_filter filter;
886 __u32 cmsg_mask;
c02178d2 887 unsigned short channel;
1da177e4
LT		 888};
889
890/* HCI security filter */
891#define HCI_SFLT_MAX_OGF 5
892
893struct hci_sec_filter {
894 __u32 type_mask;
895 __u32 event_mask[2];
896 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
897};
898
899/* ----- HCI requests ----- */
900#define HCI_REQ_DONE 0
901#define HCI_REQ_PEND 1
902#define HCI_REQ_CANCELED 2
903
a6a67efd
TG		 904#define hci_req_lock(d) mutex_lock(&d->req_lock)
905#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 906
23bb5763 907void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1da177e4 908
2ce603eb
CT		 909void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
910 u16 latency, u16 to_multiplier);
a7a595f6
VCG		 911void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
912 __u8 ltk[16]);
913void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
914void hci_le_ltk_neg_reply(struct hci_conn *conn);
915
1da177e4 916#endif /* __HCI_CORE_H */
Linux 6.x block layer and io_uring tree(s)