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Bluetooth: Move command task to workqueue
[mirror_ubuntu-bionic-kernel.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
5e59b791
LAD		 35/* HCI priority */
36#define HCI_PRIO_MAX 7
37
1da177e4 38/* HCI Core structures */
1da177e4
LT		 39struct inquiry_data {
40 bdaddr_t bdaddr;
41 __u8 pscan_rep_mode;
42 __u8 pscan_period_mode;
43 __u8 pscan_mode;
44 __u8 dev_class[3];
1ebb9252 45 __le16 clock_offset;
1da177e4 46 __s8 rssi;
41a96212 47 __u8 ssp_mode;
1da177e4
LT		 48};
49
50struct inquiry_entry {
70f23020 51 struct inquiry_entry *next;
1da177e4
LT		 52 __u32 timestamp;
53 struct inquiry_data data;
54};
55
56struct inquiry_cache {
70f23020 57 spinlock_t lock;
1da177e4 58 __u32 timestamp;
70f23020 59 struct inquiry_entry *list;
1da177e4
LT		 60};
61
62struct hci_conn_hash {
63 struct list_head list;
1da177e4
LT		 64 unsigned int acl_num;
65 unsigned int sco_num;
fcd89c09 66 unsigned int le_num;
1da177e4
LT		 67};
68
f0358568
JH		 69struct bdaddr_list {
70 struct list_head list;
71 bdaddr_t bdaddr;
72};
2aeb9a1a
JH		 73
74struct bt_uuid {
75 struct list_head list;
76 u8 uuid[16];
1aff6f09 77 u8 svc_hint;
2aeb9a1a
JH		 78};
79
34918cd7
VCG		 80struct key_master_id {
81 __le16 ediv;
82 u8 rand[8];
83} __packed;
84
85struct link_key_data {
86 bdaddr_t bdaddr;
87 u8 type;
88 u8 val[16];
89 u8 pin_len;
90 u8 dlen;
91 u8 data[0];
92} __packed;
93
55ed8ca1
JH		 94struct link_key {
95 struct list_head list;
96 bdaddr_t bdaddr;
97 u8 type;
98 u8 val[16];
99 u8 pin_len;
34918cd7
VCG		 100 u8 dlen;
101 u8 data[0];
55ed8ca1
JH		 102};
103
2763eda6
SJ		 104struct oob_data {
105 struct list_head list;
106 bdaddr_t bdaddr;
107 u8 hash[16];
108 u8 randomizer[16];
109};
110
76c8686f
AG		 111struct adv_entry {
112 struct list_head list;
113 bdaddr_t bdaddr;
114 u8 bdaddr_type;
115};
116
cd4c5391 117#define NUM_REASSEMBLY 4
1da177e4
LT		 118struct hci_dev {
119 struct list_head list;
09fd0de5 120 struct mutex lock;
1da177e4
LT		 121 atomic_t refcnt;
122
123 char name[8];
124 unsigned long flags;
125 __u16 id;
c13854ce 126 __u8 bus;
943da25d 127 __u8 dev_type;
1da177e4 128 bdaddr_t bdaddr;
1f6c6378 129 __u8 dev_name[HCI_MAX_NAME_LENGTH];
80a1e1db 130 __u8 eir[HCI_MAX_EIR_LENGTH];
a9de9248 131 __u8 dev_class[3];
1aff6f09
JH		 132 __u8 major_class;
133 __u8 minor_class;
1da177e4 134 __u8 features[8];
971e3a4b 135 __u8 extfeatures[8];
a9de9248 136 __u8 commands[64];
333140b5 137 __u8 ssp_mode;
1143e5a6
MH		 138 __u8 hci_ver;
139 __u16 hci_rev;
d5859e22 140 __u8 lmp_ver;
1143e5a6 141 __u16 manufacturer;
d5859e22 142 __le16 lmp_subver;
1da177e4 143 __u16 voice_setting;
17fa4b9d 144 __u8 io_capability;
1da177e4
LT		 145
146 __u16 pkt_type;
5b7f9909 147 __u16 esco_type;
1da177e4
LT		 148 __u16 link_policy;
149 __u16 link_mode;
150
04837f64
MH		 151 __u32 idle_timeout;
152 __u16 sniff_min_interval;
153 __u16 sniff_max_interval;
154
928abaa7
AE		 155 __u8 amp_status;
156 __u32 amp_total_bw;
157 __u32 amp_max_bw;
158 __u32 amp_min_latency;
159 __u32 amp_max_pdu;
160 __u8 amp_type;
161 __u16 amp_pal_cap;
162 __u16 amp_assoc_size;
163 __u32 amp_max_flush_to;
164 __u32 amp_be_flush_to;
165
1e89cffb
AE		 166 __u8 flow_ctl_mode;
167
9f61656a
JH		 168 unsigned int auto_accept_delay;
169
1da177e4
LT		 170 unsigned long quirks;
171
172 atomic_t cmd_cnt;
173 unsigned int acl_cnt;
174 unsigned int sco_cnt;
6ed58ec5 175 unsigned int le_cnt;
1da177e4
LT		 176
177 unsigned int acl_mtu;
178 unsigned int sco_mtu;
6ed58ec5 179 unsigned int le_mtu;
1da177e4
LT		 180 unsigned int acl_pkts;
181 unsigned int sco_pkts;
6ed58ec5 182 unsigned int le_pkts;
1da177e4 183
1da177e4
LT		 184 unsigned long acl_last_tx;
185 unsigned long sco_last_tx;
6ed58ec5 186 unsigned long le_last_tx;
1da177e4 187
f48fd9c8
MH		 188 struct workqueue_struct *workqueue;
189
ab81cbf9 190 struct work_struct power_on;
3243553f 191 struct delayed_work power_off;
ab81cbf9 192
16ab91ab
JH		 193 __u16 discov_timeout;
194 struct delayed_work discov_off;
195
6bd32326 196 struct timer_list cmd_timer;
b78752cc
MH		 197
198 struct work_struct rx_work;
c347b765 199 struct work_struct cmd_work;
1da177e4
LT		 200 struct tasklet_struct tx_task;
201
202 struct sk_buff_head rx_q;
203 struct sk_buff_head raw_q;
204 struct sk_buff_head cmd_q;
205
206 struct sk_buff *sent_cmd;
cd4c5391 207 struct sk_buff *reassembly[NUM_REASSEMBLY];
1da177e4 208
a6a67efd 209 struct mutex req_lock;
1da177e4
LT		 210 wait_queue_head_t req_wait_q;
211 __u32 req_status;
212 __u32 req_result;
a5040efa
JH		 213
214 __u16 init_last_cmd;
1da177e4 215
2e58ef3e
JH		 216 struct list_head mgmt_pending;
217
1da177e4
LT		 218 struct inquiry_cache inq_cache;
219 struct hci_conn_hash conn_hash;
ea4bd8ba 220 struct list_head blacklist;
1da177e4 221
2aeb9a1a
JH		 222 struct list_head uuids;
223
55ed8ca1
JH		 224 struct list_head link_keys;
225
2763eda6
SJ		 226 struct list_head remote_oob_data;
227
76c8686f 228 struct list_head adv_entries;
db323f2f 229 struct delayed_work adv_work;
76c8686f 230
1da177e4
LT		 231 struct hci_dev_stats stat;
232
233 struct sk_buff_head driver_init;
234
235 void *driver_data;
236 void *core_data;
237
70f23020 238 atomic_t promisc;
1da177e4 239
ca325f69
MH		 240 struct dentry *debugfs;
241
a91f2e39
MH		 242 struct device *parent;
243 struct device dev;
1da177e4 244
611b30f7
MH		 245 struct rfkill *rfkill;
246
70f23020 247 struct module *owner;
1da177e4 248
d23264a8
AG		 249 unsigned long dev_flags;
250
1da177e4
LT		 251 int (*open)(struct hci_dev *hdev);
252 int (*close)(struct hci_dev *hdev);
253 int (*flush)(struct hci_dev *hdev);
254 int (*send)(struct sk_buff *skb);
255 void (*destruct)(struct hci_dev *hdev);
256 void (*notify)(struct hci_dev *hdev, unsigned int evt);
257 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
258};
259
260struct hci_conn {
261 struct list_head list;
262
adc4266d 263 atomic_t refcnt;
adc4266d
SJ		 264
265 bdaddr_t dst;
5a9d0a3f 266 __u8 dst_type;
adc4266d
SJ		 267 __u16 handle;
268 __u16 state;
269 __u8 mode;
270 __u8 type;
271 __u8 out;
272 __u8 attempt;
273 __u8 dev_class[3];
274 __u8 features[8];
275 __u8 ssp_mode;
276 __u16 interval;
277 __u16 pkt_type;
278 __u16 link_policy;
279 __u32 link_mode;
13d39315 280 __u8 key_type;
adc4266d
SJ		 281 __u8 auth_type;
282 __u8 sec_level;
283 __u8 pending_sec_level;
284 __u8 pin_length;
726b4ffc 285 __u8 enc_key_size;
adc4266d
SJ		 286 __u8 io_capability;
287 __u8 power_save;
288 __u16 disc_timeout;
289 unsigned long pend;
04837f64 290
03b555e1
JH		 291 __u8 remote_cap;
292 __u8 remote_oob;
293 __u8 remote_auth;
294
adc4266d 295 unsigned int sent;
04837f64 296
1da177e4 297 struct sk_buff_head data_q;
2c33c06a 298 struct list_head chan_list;
1da177e4 299
19c40e3b 300 struct delayed_work disc_work;
04837f64 301 struct timer_list idle_timer;
9f61656a 302 struct timer_list auto_accept_timer;
04837f64 303
f3784d83
RQ		 304 struct work_struct work_add;
305 struct work_struct work_del;
b219e3ac
MH		 306
307 struct device dev;
9eba32b8 308 atomic_t devref;
b219e3ac 309
1da177e4
LT		 310 struct hci_dev *hdev;
311 void *l2cap_data;
312 void *sco_data;
1da177e4
LT		 313
314 struct hci_conn *link;
e9a416b5
JH		 315
316 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
317 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
318 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
1da177e4
LT		 319};
320
73d80deb
LAD		 321struct hci_chan {
322 struct list_head list;
323
324 struct hci_conn *conn;
325 struct sk_buff_head data_q;
326 unsigned int sent;
327};
328
1da177e4
LT		 329extern struct hci_proto *hci_proto[];
330extern struct list_head hci_dev_list;
331extern struct list_head hci_cb_list;
332extern rwlock_t hci_dev_list_lock;
333extern rwlock_t hci_cb_list_lock;
334
335/* ----- Inquiry cache ----- */
70f23020
AE		 336#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
337#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
1da177e4
LT		 338
339#define inquiry_cache_lock(c) spin_lock(&c->lock)
340#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
341#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
342#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
343
344static inline void inquiry_cache_init(struct hci_dev *hdev)
345{
346 struct inquiry_cache *c = &hdev->inq_cache;
347 spin_lock_init(&c->lock);
348 c->list = NULL;
349}
350
351static inline int inquiry_cache_empty(struct hci_dev *hdev)
352{
353 struct inquiry_cache *c = &hdev->inq_cache;
a02cec21 354 return c->list == NULL;
1da177e4
LT		 355}
356
357static inline long inquiry_cache_age(struct hci_dev *hdev)
358{
359 struct inquiry_cache *c = &hdev->inq_cache;
360 return jiffies - c->timestamp;
361}
362
363static inline long inquiry_entry_age(struct inquiry_entry *e)
364{
365 return jiffies - e->timestamp;
366}
367
5a9d0a3f
WR		 368struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
369 bdaddr_t *bdaddr);
1da177e4
LT		 370void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
371
372/* ----- HCI Connections ----- */
373enum {
374 HCI_CONN_AUTH_PEND,
19f8def0 375 HCI_CONN_REAUTH_PEND,
1da177e4 376 HCI_CONN_ENCRYPT_PEND,
04837f64
MH		 377 HCI_CONN_RSWITCH_PEND,
378 HCI_CONN_MODE_CHANGE_PEND,
e73439d8 379 HCI_CONN_SCO_SETUP_PEND,
d26a2345 380 HCI_CONN_LE_SMP_PEND,
1da177e4
LT		 381};
382
383static inline void hci_conn_hash_init(struct hci_dev *hdev)
384{
385 struct hci_conn_hash *h = &hdev->conn_hash;
386 INIT_LIST_HEAD(&h->list);
1da177e4
LT		 387 h->acl_num = 0;
388 h->sco_num = 0;
dc8ed672 389 h->le_num = 0;
1da177e4
LT		 390}
391
392static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
393{
394 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325 395 list_add_rcu(&c->list, &h->list);
fcd89c09
VT		 396 switch (c->type) {
397 case ACL_LINK:
1da177e4 398 h->acl_num++;
fcd89c09
VT		 399 break;
400 case LE_LINK:
401 h->le_num++;
402 break;
403 case SCO_LINK:
404 case ESCO_LINK:
1da177e4 405 h->sco_num++;
fcd89c09
VT		 406 break;
407 }
1da177e4
LT		 408}
409
410static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
411{
412 struct hci_conn_hash *h = &hdev->conn_hash;
bf4c6325
GP		 413
414 list_del_rcu(&c->list);
415 synchronize_rcu();
416
fcd89c09
VT		 417 switch (c->type) {
418 case ACL_LINK:
1da177e4 419 h->acl_num--;
fcd89c09
VT		 420 break;
421 case LE_LINK:
422 h->le_num--;
423 break;
424 case SCO_LINK:
425 case ESCO_LINK:
1da177e4 426 h->sco_num--;
fcd89c09
VT		 427 break;
428 }
1da177e4
LT		 429}
430
52087a79
LAD		 431static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
432{
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 switch (type) {
435 case ACL_LINK:
436 return h->acl_num;
437 case LE_LINK:
438 return h->le_num;
439 case SCO_LINK:
440 case ESCO_LINK:
441 return h->sco_num;
442 default:
443 return 0;
444 }
445}
446
1da177e4 447static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
adc4266d 448 __u16 handle)
1da177e4
LT		 449{
450 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 451 struct hci_conn *c;
452
bf4c6325
GP		 453 rcu_read_lock();
454
455 list_for_each_entry_rcu(c, &h->list, list) {
456 if (c->handle == handle) {
457 rcu_read_unlock();
1da177e4 458 return c;
bf4c6325 459 }
1da177e4 460 }
bf4c6325
GP		 461 rcu_read_unlock();
462
1da177e4
LT		 463 return NULL;
464}
465
466static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
adc4266d 467 __u8 type, bdaddr_t *ba)
1da177e4
LT		 468{
469 struct hci_conn_hash *h = &hdev->conn_hash;
1da177e4
LT		 470 struct hci_conn *c;
471
bf4c6325
GP		 472 rcu_read_lock();
473
474 list_for_each_entry_rcu(c, &h->list, list) {
475 if (c->type == type && !bacmp(&c->dst, ba)) {
476 rcu_read_unlock();
1da177e4 477 return c;
bf4c6325 478 }
1da177e4 479 }
bf4c6325
GP		 480
481 rcu_read_unlock();
482
1da177e4
LT		 483 return NULL;
484}
485
4c67bc74 486static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
adc4266d 487 __u8 type, __u16 state)
4c67bc74
MH		 488{
489 struct hci_conn_hash *h = &hdev->conn_hash;
4c67bc74
MH		 490 struct hci_conn *c;
491
bf4c6325
GP		 492 rcu_read_lock();
493
494 list_for_each_entry_rcu(c, &h->list, list) {
495 if (c->type == type && c->state == state) {
496 rcu_read_unlock();
4c67bc74 497 return c;
bf4c6325 498 }
4c67bc74 499 }
bf4c6325
GP		 500
501 rcu_read_unlock();
502
4c67bc74
MH		 503 return NULL;
504}
505
506void hci_acl_connect(struct hci_conn *conn);
1da177e4
LT		 507void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
508void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82 509void hci_setup_sync(struct hci_conn *conn, __u16 handle);
e73439d8 510void hci_sco_setup(struct hci_conn *conn, __u8 status);
1da177e4
LT		 511
512struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
a9de9248
MH		 513int hci_conn_del(struct hci_conn *conn);
514void hci_conn_hash_flush(struct hci_dev *hdev);
515void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4 516
73d80deb
LAD		 517struct hci_chan *hci_chan_create(struct hci_conn *conn);
518int hci_chan_del(struct hci_chan *chan);
2c33c06a 519void hci_chan_list_flush(struct hci_conn *conn);
73d80deb 520
5a9d0a3f
WR		 521struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
522 __u8 sec_level, __u8 auth_type);
e7c29cb1 523int hci_conn_check_link_mode(struct hci_conn *conn);
b3b1b061 524int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
0684e5f9 525int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4 526int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355 527int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4 528
14b12d0b 529void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1da177e4 530
9eba32b8
MH		 531void hci_conn_hold_device(struct hci_conn *conn);
532void hci_conn_put_device(struct hci_conn *conn);
533
1da177e4
LT		 534static inline void hci_conn_hold(struct hci_conn *conn)
535{
536 atomic_inc(&conn->refcnt);
19c40e3b 537 cancel_delayed_work_sync(&conn->disc_work);
1da177e4
LT		 538}
539
540static inline void hci_conn_put(struct hci_conn *conn)
541{
542 if (atomic_dec_and_test(&conn->refcnt)) {
04837f64 543 unsigned long timeo;
454d48ff 544 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
04837f64 545 del_timer(&conn->idle_timer);
6ac59344 546 if (conn->state == BT_CONNECTED) {
052b30b0 547 timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344 548 if (!conn->out)
052b30b0 549 timeo *= 2;
5a9d0a3f 550 } else {
6ac59344 551 timeo = msecs_to_jiffies(10);
5a9d0a3f
WR		 552 }
553 } else {
04837f64 554 timeo = msecs_to_jiffies(10);
5a9d0a3f 555 }
19c40e3b
GP		 556 cancel_delayed_work_sync(&conn->disc_work);
557 queue_delayed_work(conn->hdev->workqueue,
558 &conn->disc_work, jiffies + timeo);
1da177e4
LT		 559 }
560}
561
1da177e4
LT		 562/* ----- HCI Devices ----- */
563static inline void __hci_dev_put(struct hci_dev *d)
564{
565 if (atomic_dec_and_test(&d->refcnt))
566 d->destruct(d);
567}
568
569static inline void hci_dev_put(struct hci_dev *d)
04fafe4e 570{
1da177e4
LT		 571 __hci_dev_put(d);
572 module_put(d->owner);
573}
574
575static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
576{
577 atomic_inc(&d->refcnt);
578 return d;
579}
580
581static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
582{
583 if (try_module_get(d->owner))
584 return __hci_dev_hold(d);
585 return NULL;
586}
587
09fd0de5
GP		 588#define hci_dev_lock(d) mutex_lock(&d->lock)
589#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1da177e4
LT		 590
591struct hci_dev *hci_dev_get(int index);
592struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
593
594struct hci_dev *hci_alloc_dev(void);
595void hci_free_dev(struct hci_dev *hdev);
596int hci_register_dev(struct hci_dev *hdev);
59735631 597void hci_unregister_dev(struct hci_dev *hdev);
1da177e4
LT		 598int hci_suspend_dev(struct hci_dev *hdev);
599int hci_resume_dev(struct hci_dev *hdev);
600int hci_dev_open(__u16 dev);
601int hci_dev_close(__u16 dev);
602int hci_dev_reset(__u16 dev);
603int hci_dev_reset_stat(__u16 dev);
604int hci_dev_cmd(unsigned int cmd, void __user *arg);
605int hci_get_dev_list(void __user *arg);
606int hci_get_dev_info(void __user *arg);
607int hci_get_conn_list(void __user *arg);
608int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
40be492f 609int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1da177e4
LT		 610int hci_inquiry(void __user *arg);
611
f0358568
JH		 612struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
613int hci_blacklist_clear(struct hci_dev *hdev);
b2a66aad
AJ		 614int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
615int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
f0358568 616
2aeb9a1a
JH		 617int hci_uuids_clear(struct hci_dev *hdev);
618
55ed8ca1
JH		 619int hci_link_keys_clear(struct hci_dev *hdev);
620struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
d25e28ab
JH		 621int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
622 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
75d262c2
VCG		 623struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
624struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
625 bdaddr_t *bdaddr, u8 type);
626int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
726b4ffc 627 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
55ed8ca1
JH		 628int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
629
2763eda6
SJ		 630int hci_remote_oob_data_clear(struct hci_dev *hdev);
631struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
632 bdaddr_t *bdaddr);
633int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
634 u8 *randomizer);
635int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
636
35815085 637#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
76c8686f
AG		 638int hci_adv_entries_clear(struct hci_dev *hdev);
639struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
640int hci_add_adv_entry(struct hci_dev *hdev,
641 struct hci_ev_le_advertising_info *ev);
642
ab81cbf9
JH		 643void hci_del_off_timer(struct hci_dev *hdev);
644
1da177e4
LT		 645void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
646
76bca880 647int hci_recv_frame(struct sk_buff *skb);
ef222013 648int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
99811510 649int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
ef222013 650
0ac7e700 651void hci_init_sysfs(struct hci_dev *hdev);
ce242970
DH		 652int hci_add_sysfs(struct hci_dev *hdev);
653void hci_del_sysfs(struct hci_dev *hdev);
a67e899c 654void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac
MH		 655void hci_conn_add_sysfs(struct hci_conn *conn);
656void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4 657
a91f2e39 658#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4
LT		 659
660/* ----- LMP capabilities ----- */
04837f64
MH		 661#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
662#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
663#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
664#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909 665#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974 666#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
e702112f 667#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
6ed58ec5 668#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
1da177e4 669
eead27da
AG		 670/* ----- Extended LMP capabilities ----- */
671#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
672
1da177e4
LT		 673/* ----- HCI protocols ----- */
674struct hci_proto {
8c1b2355 675 char *name;
1da177e4
LT		 676 unsigned int id;
677 unsigned long flags;
678
679 void *priv;
680
5a9d0a3f
WR		 681 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
682 __u8 type);
1da177e4 683 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
2950f21a
MH		 684 int (*disconn_ind) (struct hci_conn *conn);
685 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
5a9d0a3f
WR		 686 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
687 __u16 flags);
1da177e4 688 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
5a9d0a3f
WR		 689 int (*security_cfm) (struct hci_conn *conn, __u8 status,
690 __u8 encrypt);
1da177e4
LT		 691};
692
5a9d0a3f
WR		 693static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
694 __u8 type)
1da177e4
LT		 695{
696 register struct hci_proto *hp;
697 int mask = 0;
8c1b2355 698
1da177e4
LT		 699 hp = hci_proto[HCI_PROTO_L2CAP];
700 if (hp && hp->connect_ind)
701 mask |= hp->connect_ind(hdev, bdaddr, type);
702
703 hp = hci_proto[HCI_PROTO_SCO];
704 if (hp && hp->connect_ind)
705 mask |= hp->connect_ind(hdev, bdaddr, type);
706
707 return mask;
708}
709
710static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
711{
712 register struct hci_proto *hp;
713
714 hp = hci_proto[HCI_PROTO_L2CAP];
715 if (hp && hp->connect_cfm)
716 hp->connect_cfm(conn, status);
717
718 hp = hci_proto[HCI_PROTO_SCO];
719 if (hp && hp->connect_cfm)
720 hp->connect_cfm(conn, status);
e9a416b5
JH		 721
722 if (conn->connect_cfm_cb)
723 conn->connect_cfm_cb(conn, status);
1da177e4
LT		 724}
725
2950f21a 726static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4
LT		 727{
728 register struct hci_proto *hp;
9f5a0d7b 729 int reason = HCI_ERROR_REMOTE_USER_TERM;
1da177e4
LT		 730
731 hp = hci_proto[HCI_PROTO_L2CAP];
732 if (hp && hp->disconn_ind)
2950f21a 733 reason = hp->disconn_ind(conn);
1da177e4
LT		 734
735 hp = hci_proto[HCI_PROTO_SCO];
736 if (hp && hp->disconn_ind)
2950f21a
MH		 737 reason = hp->disconn_ind(conn);
738
739 return reason;
740}
741
742static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
743{
744 register struct hci_proto *hp;
745
746 hp = hci_proto[HCI_PROTO_L2CAP];
747 if (hp && hp->disconn_cfm)
748 hp->disconn_cfm(conn, reason);
749
750 hp = hci_proto[HCI_PROTO_SCO];
751 if (hp && hp->disconn_cfm)
752 hp->disconn_cfm(conn, reason);
e9a416b5
JH		 753
754 if (conn->disconn_cfm_cb)
755 conn->disconn_cfm_cb(conn, reason);
1da177e4
LT		 756}
757
758static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
759{
760 register struct hci_proto *hp;
8c1b2355
MH		 761 __u8 encrypt;
762
763 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
764 return;
765
766 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4
LT		 767
768 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 769 if (hp && hp->security_cfm)
770 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 771
772 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 773 if (hp && hp->security_cfm)
774 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 775
776 if (conn->security_cfm_cb)
777 conn->security_cfm_cb(conn, status);
1da177e4
LT		 778}
779
5a9d0a3f
WR		 780static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
781 __u8 encrypt)
1da177e4
LT		 782{
783 register struct hci_proto *hp;
784
785 hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355
MH		 786 if (hp && hp->security_cfm)
787 hp->security_cfm(conn, status, encrypt);
1da177e4
LT		 788
789 hp = hci_proto[HCI_PROTO_SCO];
8c1b2355
MH		 790 if (hp && hp->security_cfm)
791 hp->security_cfm(conn, status, encrypt);
e9a416b5
JH		 792
793 if (conn->security_cfm_cb)
794 conn->security_cfm_cb(conn, status);
1da177e4
LT		 795}
796
797int hci_register_proto(struct hci_proto *hproto);
798int hci_unregister_proto(struct hci_proto *hproto);
799
800/* ----- HCI callbacks ----- */
801struct hci_cb {
802 struct list_head list;
803
804 char *name;
805
5a9d0a3f
WR		 806 void (*security_cfm) (struct hci_conn *conn, __u8 status,
807 __u8 encrypt);
1da177e4
LT		 808 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
809 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
810};
811
812static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
813{
814 struct list_head *p;
8c1b2355 815 __u8 encrypt;
1da177e4
LT		 816
817 hci_proto_auth_cfm(conn, status);
818
8c1b2355
MH		 819 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
820 return;
821
822 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
823
1da177e4
LT		 824 read_lock_bh(&hci_cb_list_lock);
825 list_for_each(p, &hci_cb_list) {
826 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 827 if (cb->security_cfm)
828 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 829 }
830 read_unlock_bh(&hci_cb_list_lock);
831}
832
5a9d0a3f
WR		 833static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
834 __u8 encrypt)
1da177e4
LT		 835{
836 struct list_head *p;
837
435fef20
MH		 838 if (conn->sec_level == BT_SECURITY_SDP)
839 conn->sec_level = BT_SECURITY_LOW;
840
88167aed
VCG		 841 if (conn->pending_sec_level > conn->sec_level)
842 conn->sec_level = conn->pending_sec_level;
843
9719f8af 844 hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4
LT		 845
846 read_lock_bh(&hci_cb_list_lock);
847 list_for_each(p, &hci_cb_list) {
848 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355
MH		 849 if (cb->security_cfm)
850 cb->security_cfm(conn, status, encrypt);
1da177e4
LT		 851 }
852 read_unlock_bh(&hci_cb_list_lock);
853}
854
855static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
856{
857 struct list_head *p;
858
859 read_lock_bh(&hci_cb_list_lock);
860 list_for_each(p, &hci_cb_list) {
861 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
862 if (cb->key_change_cfm)
863 cb->key_change_cfm(conn, status);
864 }
865 read_unlock_bh(&hci_cb_list_lock);
866}
867
5a9d0a3f
WR		 868static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
869 __u8 role)
1da177e4
LT		 870{
871 struct list_head *p;
872
873 read_lock_bh(&hci_cb_list_lock);
874 list_for_each(p, &hci_cb_list) {
875 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
876 if (cb->role_switch_cfm)
877 cb->role_switch_cfm(conn, status, role);
878 }
879 read_unlock_bh(&hci_cb_list_lock);
880}
881
882int hci_register_cb(struct hci_cb *hcb);
883int hci_unregister_cb(struct hci_cb *hcb);
884
885int hci_register_notifier(struct notifier_block *nb);
886int hci_unregister_notifier(struct notifier_block *nb);
887
a9de9248 888int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
73d80deb 889void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
0d861d8b 890void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1da177e4 891
a9de9248 892void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1da177e4
LT		 893
894void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
895
896/* ----- HCI Sockets ----- */
eec8d2bc
JH		 897void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
898 struct sock *skip_sk);
1da177e4 899
0381101f
JH		 900/* Management interface */
901int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
744cf19e
JH		 902int mgmt_index_added(struct hci_dev *hdev);
903int mgmt_index_removed(struct hci_dev *hdev);
904int mgmt_powered(struct hci_dev *hdev, u8 powered);
905int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
906int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
907int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
908int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
909 u8 persistent);
48264f06
JH		 910int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
911 u8 addr_type);
912int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
913 u8 addr_type);
37d9ef76 914int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
48264f06
JH		 915int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
916 u8 addr_type, u8 status);
744cf19e
JH		 917int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
918int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
c35938b2 919 u8 status);
744cf19e
JH		 920int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
921 u8 status);
922int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
923 __le32 value, u8 confirm_hint);
924int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
925 u8 status);
926int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
927 bdaddr_t *bdaddr, u8 status);
604086b7
BG		 928int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr);
929int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
930 u8 status);
931int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev,
932 bdaddr_t *bdaddr, u8 status);
744cf19e
JH		 933int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
934int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
935int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
936 u8 *randomizer, u8 status);
48264f06
JH		 937int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
938 u8 addr_type, u8 *dev_class, s8 rssi, u8 *eir);
744cf19e 939int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
7a135109 940int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
e6d465cb 941int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
744cf19e
JH		 942int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
943int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
944int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
0381101f 945
1da177e4
LT		 946/* HCI info for socket */
947#define hci_pi(sk) ((struct hci_pinfo *) sk)
948
949struct hci_pinfo {
950 struct bt_sock bt;
951 struct hci_dev *hdev;
952 struct hci_filter filter;
953 __u32 cmsg_mask;
c02178d2 954 unsigned short channel;
1da177e4
LT		 955};
956
957/* HCI security filter */
958#define HCI_SFLT_MAX_OGF 5
959
960struct hci_sec_filter {
961 __u32 type_mask;
962 __u32 event_mask[2];
963 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
964};
965
966/* ----- HCI requests ----- */
967#define HCI_REQ_DONE 0
968#define HCI_REQ_PEND 1
969#define HCI_REQ_CANCELED 2
970
a6a67efd
TG		 971#define hci_req_lock(d) mutex_lock(&d->req_lock)
972#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 973
23bb5763 974void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1da177e4 975
2ce603eb
CT		 976void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
977 u16 latency, u16 to_multiplier);
a7a595f6
VCG		 978void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
979 __u8 ltk[16]);
980void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
981void hci_le_ltk_neg_reply(struct hci_conn *conn);
982
2519a1fc 983int hci_do_inquiry(struct hci_dev *hdev, u8 length);
023d5049 984int hci_cancel_inquiry(struct hci_dev *hdev);
2519a1fc 985
1da177e4 986#endif /* __HCI_CORE_H */
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