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Bluetooth: Add new auto_conn value matching mgmt action 0x00
[mirror_ubuntu-bionic-kernel.git] / include / net / bluetooth / hci_core.h
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
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
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
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 #ifndef __HCI_CORE_H
26 #define __HCI_CORE_H
27
28 #include <net/bluetooth/hci.h>
29
30 /* HCI priority */
31 #define HCI_PRIO_MAX 7
32
33 /* HCI Core structures */
34 struct inquiry_data {
35 bdaddr_t bdaddr;
36 __u8 pscan_rep_mode;
37 __u8 pscan_period_mode;
38 __u8 pscan_mode;
39 __u8 dev_class[3];
40 __le16 clock_offset;
41 __s8 rssi;
42 __u8 ssp_mode;
43 };
44
45 struct inquiry_entry {
46 struct list_head all; /* inq_cache.all */
47 struct list_head list; /* unknown or resolve */
48 enum {
49 NAME_NOT_KNOWN,
50 NAME_NEEDED,
51 NAME_PENDING,
52 NAME_KNOWN,
53 } name_state;
54 __u32 timestamp;
55 struct inquiry_data data;
56 };
57
58 struct discovery_state {
59 int type;
60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
63 DISCOVERY_FINDING,
64 DISCOVERY_RESOLVING,
65 DISCOVERY_STOPPING,
66 } state;
67 struct list_head all; /* All devices found during inquiry */
68 struct list_head unknown; /* Name state not known */
69 struct list_head resolve; /* Name needs to be resolved */
70 __u32 timestamp;
71 bdaddr_t last_adv_addr;
72 u8 last_adv_addr_type;
73 s8 last_adv_rssi;
74 u32 last_adv_flags;
75 u8 last_adv_data[HCI_MAX_AD_LENGTH];
76 u8 last_adv_data_len;
77 };
78
79 struct hci_conn_hash {
80 struct list_head list;
81 unsigned int acl_num;
82 unsigned int amp_num;
83 unsigned int sco_num;
84 unsigned int le_num;
85 };
86
87 struct bdaddr_list {
88 struct list_head list;
89 bdaddr_t bdaddr;
90 u8 bdaddr_type;
91 };
92
93 struct bt_uuid {
94 struct list_head list;
95 u8 uuid[16];
96 u8 size;
97 u8 svc_hint;
98 };
99
100 struct smp_csrk {
101 bdaddr_t bdaddr;
102 u8 bdaddr_type;
103 u8 master;
104 u8 val[16];
105 };
106
107 struct smp_ltk {
108 struct list_head list;
109 bdaddr_t bdaddr;
110 u8 bdaddr_type;
111 u8 authenticated;
112 u8 type;
113 u8 enc_size;
114 __le16 ediv;
115 __le64 rand;
116 u8 val[16];
117 };
118
119 struct smp_irk {
120 struct list_head list;
121 bdaddr_t rpa;
122 bdaddr_t bdaddr;
123 u8 addr_type;
124 u8 val[16];
125 };
126
127 struct link_key {
128 struct list_head list;
129 bdaddr_t bdaddr;
130 u8 type;
131 u8 val[HCI_LINK_KEY_SIZE];
132 u8 pin_len;
133 };
134
135 struct oob_data {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 hash192[16];
139 u8 randomizer192[16];
140 u8 hash256[16];
141 u8 randomizer256[16];
142 };
143
144 #define HCI_MAX_SHORT_NAME_LENGTH 10
145
146 /* Default LE RPA expiry time, 15 minutes */
147 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
148
149 /* Default min/max age of connection information (1s/3s) */
150 #define DEFAULT_CONN_INFO_MIN_AGE 1000
151 #define DEFAULT_CONN_INFO_MAX_AGE 3000
152
153 struct amp_assoc {
154 __u16 len;
155 __u16 offset;
156 __u16 rem_len;
157 __u16 len_so_far;
158 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
159 };
160
161 #define HCI_MAX_PAGES 3
162
163 #define NUM_REASSEMBLY 4
164 struct hci_dev {
165 struct list_head list;
166 struct mutex lock;
167
168 char name[8];
169 unsigned long flags;
170 __u16 id;
171 __u8 bus;
172 __u8 dev_type;
173 bdaddr_t bdaddr;
174 bdaddr_t public_addr;
175 bdaddr_t random_addr;
176 bdaddr_t static_addr;
177 __u8 adv_addr_type;
178 __u8 dev_name[HCI_MAX_NAME_LENGTH];
179 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
180 __u8 eir[HCI_MAX_EIR_LENGTH];
181 __u8 dev_class[3];
182 __u8 major_class;
183 __u8 minor_class;
184 __u8 max_page;
185 __u8 features[HCI_MAX_PAGES][8];
186 __u8 le_features[8];
187 __u8 le_white_list_size;
188 __u8 le_states[8];
189 __u8 commands[64];
190 __u8 hci_ver;
191 __u16 hci_rev;
192 __u8 lmp_ver;
193 __u16 manufacturer;
194 __u16 lmp_subver;
195 __u16 voice_setting;
196 __u8 num_iac;
197 __u8 io_capability;
198 __s8 inq_tx_power;
199 __u16 page_scan_interval;
200 __u16 page_scan_window;
201 __u8 page_scan_type;
202 __u8 le_adv_channel_map;
203 __u8 le_scan_type;
204 __u16 le_scan_interval;
205 __u16 le_scan_window;
206 __u16 le_conn_min_interval;
207 __u16 le_conn_max_interval;
208 __u16 le_conn_latency;
209 __u16 le_supv_timeout;
210 __u16 discov_interleaved_timeout;
211 __u16 conn_info_min_age;
212 __u16 conn_info_max_age;
213 __u8 ssp_debug_mode;
214 __u32 clock;
215
216 __u16 devid_source;
217 __u16 devid_vendor;
218 __u16 devid_product;
219 __u16 devid_version;
220
221 __u16 pkt_type;
222 __u16 esco_type;
223 __u16 link_policy;
224 __u16 link_mode;
225
226 __u32 idle_timeout;
227 __u16 sniff_min_interval;
228 __u16 sniff_max_interval;
229
230 __u8 amp_status;
231 __u32 amp_total_bw;
232 __u32 amp_max_bw;
233 __u32 amp_min_latency;
234 __u32 amp_max_pdu;
235 __u8 amp_type;
236 __u16 amp_pal_cap;
237 __u16 amp_assoc_size;
238 __u32 amp_max_flush_to;
239 __u32 amp_be_flush_to;
240
241 struct amp_assoc loc_assoc;
242
243 __u8 flow_ctl_mode;
244
245 unsigned int auto_accept_delay;
246
247 unsigned long quirks;
248
249 atomic_t cmd_cnt;
250 unsigned int acl_cnt;
251 unsigned int sco_cnt;
252 unsigned int le_cnt;
253
254 unsigned int acl_mtu;
255 unsigned int sco_mtu;
256 unsigned int le_mtu;
257 unsigned int acl_pkts;
258 unsigned int sco_pkts;
259 unsigned int le_pkts;
260
261 __u16 block_len;
262 __u16 block_mtu;
263 __u16 num_blocks;
264 __u16 block_cnt;
265
266 unsigned long acl_last_tx;
267 unsigned long sco_last_tx;
268 unsigned long le_last_tx;
269
270 struct workqueue_struct *workqueue;
271 struct workqueue_struct *req_workqueue;
272
273 struct work_struct power_on;
274 struct delayed_work power_off;
275
276 __u16 discov_timeout;
277 struct delayed_work discov_off;
278
279 struct delayed_work service_cache;
280
281 struct delayed_work cmd_timer;
282
283 struct work_struct rx_work;
284 struct work_struct cmd_work;
285 struct work_struct tx_work;
286
287 struct sk_buff_head rx_q;
288 struct sk_buff_head raw_q;
289 struct sk_buff_head cmd_q;
290
291 struct sk_buff *recv_evt;
292 struct sk_buff *sent_cmd;
293 struct sk_buff *reassembly[NUM_REASSEMBLY];
294
295 struct mutex req_lock;
296 wait_queue_head_t req_wait_q;
297 __u32 req_status;
298 __u32 req_result;
299
300 struct crypto_blkcipher *tfm_aes;
301
302 struct discovery_state discovery;
303 struct hci_conn_hash conn_hash;
304
305 struct list_head mgmt_pending;
306 struct list_head blacklist;
307 struct list_head uuids;
308 struct list_head link_keys;
309 struct list_head long_term_keys;
310 struct list_head identity_resolving_keys;
311 struct list_head remote_oob_data;
312 struct list_head le_white_list;
313 struct list_head le_conn_params;
314 struct list_head pend_le_conns;
315
316 struct hci_dev_stats stat;
317
318 atomic_t promisc;
319
320 struct dentry *debugfs;
321
322 struct device dev;
323
324 struct rfkill *rfkill;
325
326 unsigned long dbg_flags;
327 unsigned long dev_flags;
328
329 struct delayed_work le_scan_disable;
330
331 __s8 adv_tx_power;
332 __u8 adv_data[HCI_MAX_AD_LENGTH];
333 __u8 adv_data_len;
334 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
335 __u8 scan_rsp_data_len;
336
337 __u8 irk[16];
338 __u32 rpa_timeout;
339 struct delayed_work rpa_expired;
340 bdaddr_t rpa;
341
342 int (*open)(struct hci_dev *hdev);
343 int (*close)(struct hci_dev *hdev);
344 int (*flush)(struct hci_dev *hdev);
345 int (*setup)(struct hci_dev *hdev);
346 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
347 void (*notify)(struct hci_dev *hdev, unsigned int evt);
348 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
349 };
350
351 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
352
353 struct hci_conn {
354 struct list_head list;
355
356 atomic_t refcnt;
357
358 bdaddr_t dst;
359 __u8 dst_type;
360 bdaddr_t src;
361 __u8 src_type;
362 bdaddr_t init_addr;
363 __u8 init_addr_type;
364 bdaddr_t resp_addr;
365 __u8 resp_addr_type;
366 __u16 handle;
367 __u16 state;
368 __u8 mode;
369 __u8 type;
370 bool out;
371 __u8 attempt;
372 __u8 dev_class[3];
373 __u8 features[HCI_MAX_PAGES][8];
374 __u16 pkt_type;
375 __u16 link_policy;
376 __u8 key_type;
377 __u8 auth_type;
378 __u8 sec_level;
379 __u8 pending_sec_level;
380 __u8 pin_length;
381 __u8 enc_key_size;
382 __u8 io_capability;
383 __u32 passkey_notify;
384 __u8 passkey_entered;
385 __u16 disc_timeout;
386 __u16 setting;
387 __u16 le_conn_min_interval;
388 __u16 le_conn_max_interval;
389 __u16 le_conn_interval;
390 __u16 le_conn_latency;
391 __u16 le_supv_timeout;
392 __s8 rssi;
393 __s8 tx_power;
394 __s8 max_tx_power;
395 unsigned long flags;
396
397 __u32 clock;
398 __u16 clock_accuracy;
399
400 unsigned long conn_info_timestamp;
401
402 __u8 remote_cap;
403 __u8 remote_auth;
404 __u8 remote_id;
405
406 unsigned int sent;
407
408 struct sk_buff_head data_q;
409 struct list_head chan_list;
410
411 struct delayed_work disc_work;
412 struct delayed_work auto_accept_work;
413 struct delayed_work idle_work;
414 struct delayed_work le_conn_timeout;
415
416 struct device dev;
417
418 struct hci_dev *hdev;
419 void *l2cap_data;
420 void *sco_data;
421 struct amp_mgr *amp_mgr;
422
423 struct hci_conn *link;
424
425 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
426 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
427 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
428 };
429
430 struct hci_chan {
431 struct list_head list;
432 __u16 handle;
433 struct hci_conn *conn;
434 struct sk_buff_head data_q;
435 unsigned int sent;
436 __u8 state;
437 };
438
439 struct hci_conn_params {
440 struct list_head list;
441
442 bdaddr_t addr;
443 u8 addr_type;
444
445 u16 conn_min_interval;
446 u16 conn_max_interval;
447 u16 conn_latency;
448 u16 supervision_timeout;
449
450 enum {
451 HCI_AUTO_CONN_DISABLED,
452 HCI_AUTO_CONN_REPORT,
453 HCI_AUTO_CONN_ALWAYS,
454 HCI_AUTO_CONN_LINK_LOSS,
455 } auto_connect;
456 };
457
458 extern struct list_head hci_dev_list;
459 extern struct list_head hci_cb_list;
460 extern rwlock_t hci_dev_list_lock;
461 extern rwlock_t hci_cb_list_lock;
462
463 /* ----- HCI interface to upper protocols ----- */
464 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
465 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
466 int l2cap_disconn_ind(struct hci_conn *hcon);
467 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
468 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
469 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
470
471 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
472 void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
473 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
474 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
475
476 /* ----- Inquiry cache ----- */
477 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
478 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
479
480 static inline void discovery_init(struct hci_dev *hdev)
481 {
482 hdev->discovery.state = DISCOVERY_STOPPED;
483 INIT_LIST_HEAD(&hdev->discovery.all);
484 INIT_LIST_HEAD(&hdev->discovery.unknown);
485 INIT_LIST_HEAD(&hdev->discovery.resolve);
486 }
487
488 bool hci_discovery_active(struct hci_dev *hdev);
489
490 void hci_discovery_set_state(struct hci_dev *hdev, int state);
491
492 static inline int inquiry_cache_empty(struct hci_dev *hdev)
493 {
494 return list_empty(&hdev->discovery.all);
495 }
496
497 static inline long inquiry_cache_age(struct hci_dev *hdev)
498 {
499 struct discovery_state *c = &hdev->discovery;
500 return jiffies - c->timestamp;
501 }
502
503 static inline long inquiry_entry_age(struct inquiry_entry *e)
504 {
505 return jiffies - e->timestamp;
506 }
507
508 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
509 bdaddr_t *bdaddr);
510 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
511 bdaddr_t *bdaddr);
512 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
513 bdaddr_t *bdaddr,
514 int state);
515 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
516 struct inquiry_entry *ie);
517 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
518 bool name_known);
519 void hci_inquiry_cache_flush(struct hci_dev *hdev);
520
521 /* ----- HCI Connections ----- */
522 enum {
523 HCI_CONN_AUTH_PEND,
524 HCI_CONN_REAUTH_PEND,
525 HCI_CONN_ENCRYPT_PEND,
526 HCI_CONN_RSWITCH_PEND,
527 HCI_CONN_MODE_CHANGE_PEND,
528 HCI_CONN_SCO_SETUP_PEND,
529 HCI_CONN_LE_SMP_PEND,
530 HCI_CONN_MGMT_CONNECTED,
531 HCI_CONN_SSP_ENABLED,
532 HCI_CONN_SC_ENABLED,
533 HCI_CONN_AES_CCM,
534 HCI_CONN_POWER_SAVE,
535 HCI_CONN_REMOTE_OOB,
536 HCI_CONN_FLUSH_KEY,
537 HCI_CONN_MASTER,
538 HCI_CONN_ENCRYPT,
539 HCI_CONN_AUTH,
540 HCI_CONN_SECURE,
541 HCI_CONN_FIPS,
542 HCI_CONN_STK_ENCRYPT,
543 };
544
545 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
546 {
547 struct hci_dev *hdev = conn->hdev;
548 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
549 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
550 }
551
552 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
553 {
554 struct hci_dev *hdev = conn->hdev;
555 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) &&
556 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
557 }
558
559 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
560 {
561 struct hci_conn_hash *h = &hdev->conn_hash;
562 list_add_rcu(&c->list, &h->list);
563 switch (c->type) {
564 case ACL_LINK:
565 h->acl_num++;
566 break;
567 case AMP_LINK:
568 h->amp_num++;
569 break;
570 case LE_LINK:
571 h->le_num++;
572 break;
573 case SCO_LINK:
574 case ESCO_LINK:
575 h->sco_num++;
576 break;
577 }
578 }
579
580 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
581 {
582 struct hci_conn_hash *h = &hdev->conn_hash;
583
584 list_del_rcu(&c->list);
585 synchronize_rcu();
586
587 switch (c->type) {
588 case ACL_LINK:
589 h->acl_num--;
590 break;
591 case AMP_LINK:
592 h->amp_num--;
593 break;
594 case LE_LINK:
595 h->le_num--;
596 break;
597 case SCO_LINK:
598 case ESCO_LINK:
599 h->sco_num--;
600 break;
601 }
602 }
603
604 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
605 {
606 struct hci_conn_hash *h = &hdev->conn_hash;
607 switch (type) {
608 case ACL_LINK:
609 return h->acl_num;
610 case AMP_LINK:
611 return h->amp_num;
612 case LE_LINK:
613 return h->le_num;
614 case SCO_LINK:
615 case ESCO_LINK:
616 return h->sco_num;
617 default:
618 return 0;
619 }
620 }
621
622 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
623 {
624 struct hci_conn_hash *c = &hdev->conn_hash;
625
626 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
627 }
628
629 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
630 __u16 handle)
631 {
632 struct hci_conn_hash *h = &hdev->conn_hash;
633 struct hci_conn *c;
634
635 rcu_read_lock();
636
637 list_for_each_entry_rcu(c, &h->list, list) {
638 if (c->handle == handle) {
639 rcu_read_unlock();
640 return c;
641 }
642 }
643 rcu_read_unlock();
644
645 return NULL;
646 }
647
648 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
649 __u8 type, bdaddr_t *ba)
650 {
651 struct hci_conn_hash *h = &hdev->conn_hash;
652 struct hci_conn *c;
653
654 rcu_read_lock();
655
656 list_for_each_entry_rcu(c, &h->list, list) {
657 if (c->type == type && !bacmp(&c->dst, ba)) {
658 rcu_read_unlock();
659 return c;
660 }
661 }
662
663 rcu_read_unlock();
664
665 return NULL;
666 }
667
668 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
669 __u8 type, __u16 state)
670 {
671 struct hci_conn_hash *h = &hdev->conn_hash;
672 struct hci_conn *c;
673
674 rcu_read_lock();
675
676 list_for_each_entry_rcu(c, &h->list, list) {
677 if (c->type == type && c->state == state) {
678 rcu_read_unlock();
679 return c;
680 }
681 }
682
683 rcu_read_unlock();
684
685 return NULL;
686 }
687
688 void hci_disconnect(struct hci_conn *conn, __u8 reason);
689 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
690 void hci_sco_setup(struct hci_conn *conn, __u8 status);
691
692 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
693 int hci_conn_del(struct hci_conn *conn);
694 void hci_conn_hash_flush(struct hci_dev *hdev);
695 void hci_conn_check_pending(struct hci_dev *hdev);
696
697 struct hci_chan *hci_chan_create(struct hci_conn *conn);
698 void hci_chan_del(struct hci_chan *chan);
699 void hci_chan_list_flush(struct hci_conn *conn);
700 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
701
702 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
703 u8 dst_type, u8 sec_level, u8 auth_type);
704 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
705 u8 sec_level, u8 auth_type);
706 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
707 __u16 setting);
708 int hci_conn_check_link_mode(struct hci_conn *conn);
709 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
710 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
711 int hci_conn_change_link_key(struct hci_conn *conn);
712 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
713
714 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
715
716 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
717
718 /*
719 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
720 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
721 * working or anything else. They just guarantee that the object is available
722 * and can be dereferenced. So you can use its locks, local variables and any
723 * other constant data.
724 * Before accessing runtime data, you _must_ lock the object and then check that
725 * it is still running. As soon as you release the locks, the connection might
726 * get dropped, though.
727 *
728 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
729 * how long the underlying connection is held. So every channel that runs on the
730 * hci_conn object calls this to prevent the connection from disappearing. As
731 * long as you hold a device, you must also guarantee that you have a valid
732 * reference to the device via hci_conn_get() (or the initial reference from
733 * hci_conn_add()).
734 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
735 * break because nobody cares for that. But this means, we cannot use
736 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
737 */
738
739 static inline void hci_conn_get(struct hci_conn *conn)
740 {
741 get_device(&conn->dev);
742 }
743
744 static inline void hci_conn_put(struct hci_conn *conn)
745 {
746 put_device(&conn->dev);
747 }
748
749 static inline void hci_conn_hold(struct hci_conn *conn)
750 {
751 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
752
753 atomic_inc(&conn->refcnt);
754 cancel_delayed_work(&conn->disc_work);
755 }
756
757 static inline void hci_conn_drop(struct hci_conn *conn)
758 {
759 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
760
761 if (atomic_dec_and_test(&conn->refcnt)) {
762 unsigned long timeo;
763
764 switch (conn->type) {
765 case ACL_LINK:
766 case LE_LINK:
767 cancel_delayed_work(&conn->idle_work);
768 if (conn->state == BT_CONNECTED) {
769 timeo = conn->disc_timeout;
770 if (!conn->out)
771 timeo *= 2;
772 } else {
773 timeo = msecs_to_jiffies(10);
774 }
775 break;
776
777 case AMP_LINK:
778 timeo = conn->disc_timeout;
779 break;
780
781 default:
782 timeo = msecs_to_jiffies(10);
783 break;
784 }
785
786 cancel_delayed_work(&conn->disc_work);
787 queue_delayed_work(conn->hdev->workqueue,
788 &conn->disc_work, timeo);
789 }
790 }
791
792 /* ----- HCI Devices ----- */
793 static inline void hci_dev_put(struct hci_dev *d)
794 {
795 BT_DBG("%s orig refcnt %d", d->name,
796 atomic_read(&d->dev.kobj.kref.refcount));
797
798 put_device(&d->dev);
799 }
800
801 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
802 {
803 BT_DBG("%s orig refcnt %d", d->name,
804 atomic_read(&d->dev.kobj.kref.refcount));
805
806 get_device(&d->dev);
807 return d;
808 }
809
810 #define hci_dev_lock(d) mutex_lock(&d->lock)
811 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
812
813 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
814 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
815
816 static inline void *hci_get_drvdata(struct hci_dev *hdev)
817 {
818 return dev_get_drvdata(&hdev->dev);
819 }
820
821 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
822 {
823 dev_set_drvdata(&hdev->dev, data);
824 }
825
826 struct hci_dev *hci_dev_get(int index);
827 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
828
829 struct hci_dev *hci_alloc_dev(void);
830 void hci_free_dev(struct hci_dev *hdev);
831 int hci_register_dev(struct hci_dev *hdev);
832 void hci_unregister_dev(struct hci_dev *hdev);
833 int hci_suspend_dev(struct hci_dev *hdev);
834 int hci_resume_dev(struct hci_dev *hdev);
835 int hci_dev_open(__u16 dev);
836 int hci_dev_close(__u16 dev);
837 int hci_dev_reset(__u16 dev);
838 int hci_dev_reset_stat(__u16 dev);
839 int hci_dev_cmd(unsigned int cmd, void __user *arg);
840 int hci_get_dev_list(void __user *arg);
841 int hci_get_dev_info(void __user *arg);
842 int hci_get_conn_list(void __user *arg);
843 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
844 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
845 int hci_inquiry(void __user *arg);
846
847 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
848 bdaddr_t *bdaddr, u8 type);
849 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
850 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
851
852 struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev,
853 bdaddr_t *bdaddr, u8 type);
854 void hci_white_list_clear(struct hci_dev *hdev);
855 int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
856 int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
857
858 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
859 bdaddr_t *addr, u8 addr_type);
860 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
861 bdaddr_t *addr, u8 addr_type);
862 int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
863 u8 auto_connect);
864 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
865 void hci_conn_params_clear_all(struct hci_dev *hdev);
866 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
867 void hci_conn_params_clear_enabled(struct hci_dev *hdev);
868
869 struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
870 bdaddr_t *addr, u8 addr_type);
871 void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
872 void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
873 void hci_pend_le_conns_clear(struct hci_dev *hdev);
874
875 void hci_update_background_scan(struct hci_dev *hdev);
876
877 void hci_uuids_clear(struct hci_dev *hdev);
878
879 void hci_link_keys_clear(struct hci_dev *hdev);
880 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
881 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
882 bdaddr_t *bdaddr, u8 *val, u8 type,
883 u8 pin_len, bool *persistent);
884 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand,
885 bool master);
886 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
887 u8 addr_type, u8 type, u8 authenticated,
888 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
889 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
890 u8 addr_type, bool master);
891 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
892 void hci_smp_ltks_clear(struct hci_dev *hdev);
893 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
894
895 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
896 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
897 u8 addr_type);
898 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
899 u8 addr_type, u8 val[16], bdaddr_t *rpa);
900 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
901 void hci_smp_irks_clear(struct hci_dev *hdev);
902
903 void hci_remote_oob_data_clear(struct hci_dev *hdev);
904 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
905 bdaddr_t *bdaddr);
906 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
907 u8 *hash, u8 *randomizer);
908 int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
909 u8 *hash192, u8 *randomizer192,
910 u8 *hash256, u8 *randomizer256);
911 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
912
913 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
914
915 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
916 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
917 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
918
919 void hci_init_sysfs(struct hci_dev *hdev);
920 void hci_conn_init_sysfs(struct hci_conn *conn);
921 void hci_conn_add_sysfs(struct hci_conn *conn);
922 void hci_conn_del_sysfs(struct hci_conn *conn);
923
924 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
925
926 /* ----- LMP capabilities ----- */
927 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
928 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
929 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
930 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
931 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
932 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
933 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
934 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
935 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
936 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
937 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
938 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
939 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
940 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
941 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
942 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
943 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
944 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
945 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
946
947 /* ----- Extended LMP capabilities ----- */
948 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
949 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
950 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
951 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
952 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
953 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
954
955 /* ----- Host capabilities ----- */
956 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
957 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
958 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
959 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
960
961 /* ----- HCI protocols ----- */
962 #define HCI_PROTO_DEFER 0x01
963
964 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
965 __u8 type, __u8 *flags)
966 {
967 switch (type) {
968 case ACL_LINK:
969 return l2cap_connect_ind(hdev, bdaddr);
970
971 case SCO_LINK:
972 case ESCO_LINK:
973 return sco_connect_ind(hdev, bdaddr, flags);
974
975 default:
976 BT_ERR("unknown link type %d", type);
977 return -EINVAL;
978 }
979 }
980
981 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
982 {
983 switch (conn->type) {
984 case ACL_LINK:
985 case LE_LINK:
986 l2cap_connect_cfm(conn, status);
987 break;
988
989 case SCO_LINK:
990 case ESCO_LINK:
991 sco_connect_cfm(conn, status);
992 break;
993
994 default:
995 BT_ERR("unknown link type %d", conn->type);
996 break;
997 }
998
999 if (conn->connect_cfm_cb)
1000 conn->connect_cfm_cb(conn, status);
1001 }
1002
1003 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1004 {
1005 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1006 return HCI_ERROR_REMOTE_USER_TERM;
1007
1008 return l2cap_disconn_ind(conn);
1009 }
1010
1011 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
1012 {
1013 switch (conn->type) {
1014 case ACL_LINK:
1015 case LE_LINK:
1016 l2cap_disconn_cfm(conn, reason);
1017 break;
1018
1019 case SCO_LINK:
1020 case ESCO_LINK:
1021 sco_disconn_cfm(conn, reason);
1022 break;
1023
1024 /* L2CAP would be handled for BREDR chan */
1025 case AMP_LINK:
1026 break;
1027
1028 default:
1029 BT_ERR("unknown link type %d", conn->type);
1030 break;
1031 }
1032
1033 if (conn->disconn_cfm_cb)
1034 conn->disconn_cfm_cb(conn, reason);
1035 }
1036
1037 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
1038 {
1039 __u8 encrypt;
1040
1041 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1042 return;
1043
1044 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1045 return;
1046
1047 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1048 l2cap_security_cfm(conn, status, encrypt);
1049
1050 if (conn->security_cfm_cb)
1051 conn->security_cfm_cb(conn, status);
1052 }
1053
1054 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
1055 __u8 encrypt)
1056 {
1057 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1058 return;
1059
1060 l2cap_security_cfm(conn, status, encrypt);
1061
1062 if (conn->security_cfm_cb)
1063 conn->security_cfm_cb(conn, status);
1064 }
1065
1066 /* ----- HCI callbacks ----- */
1067 struct hci_cb {
1068 struct list_head list;
1069
1070 char *name;
1071
1072 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1073 __u8 encrypt);
1074 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1075 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1076 };
1077
1078 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1079 {
1080 struct hci_cb *cb;
1081 __u8 encrypt;
1082
1083 hci_proto_auth_cfm(conn, status);
1084
1085 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1086 return;
1087
1088 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1089
1090 read_lock(&hci_cb_list_lock);
1091 list_for_each_entry(cb, &hci_cb_list, list) {
1092 if (cb->security_cfm)
1093 cb->security_cfm(conn, status, encrypt);
1094 }
1095 read_unlock(&hci_cb_list_lock);
1096 }
1097
1098 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1099 __u8 encrypt)
1100 {
1101 struct hci_cb *cb;
1102
1103 if (conn->sec_level == BT_SECURITY_SDP)
1104 conn->sec_level = BT_SECURITY_LOW;
1105
1106 if (conn->pending_sec_level > conn->sec_level)
1107 conn->sec_level = conn->pending_sec_level;
1108
1109 hci_proto_encrypt_cfm(conn, status, encrypt);
1110
1111 read_lock(&hci_cb_list_lock);
1112 list_for_each_entry(cb, &hci_cb_list, list) {
1113 if (cb->security_cfm)
1114 cb->security_cfm(conn, status, encrypt);
1115 }
1116 read_unlock(&hci_cb_list_lock);
1117 }
1118
1119 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1120 {
1121 struct hci_cb *cb;
1122
1123 read_lock(&hci_cb_list_lock);
1124 list_for_each_entry(cb, &hci_cb_list, list) {
1125 if (cb->key_change_cfm)
1126 cb->key_change_cfm(conn, status);
1127 }
1128 read_unlock(&hci_cb_list_lock);
1129 }
1130
1131 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1132 __u8 role)
1133 {
1134 struct hci_cb *cb;
1135
1136 read_lock(&hci_cb_list_lock);
1137 list_for_each_entry(cb, &hci_cb_list, list) {
1138 if (cb->role_switch_cfm)
1139 cb->role_switch_cfm(conn, status, role);
1140 }
1141 read_unlock(&hci_cb_list_lock);
1142 }
1143
1144 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
1145 {
1146 size_t parsed = 0;
1147
1148 if (data_len < 2)
1149 return false;
1150
1151 while (parsed < data_len - 1) {
1152 u8 field_len = data[0];
1153
1154 if (field_len == 0)
1155 break;
1156
1157 parsed += field_len + 1;
1158
1159 if (parsed > data_len)
1160 break;
1161
1162 if (data[1] == type)
1163 return true;
1164
1165 data += field_len + 1;
1166 }
1167
1168 return false;
1169 }
1170
1171 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1172 {
1173 if (addr_type != ADDR_LE_DEV_RANDOM)
1174 return false;
1175
1176 if ((bdaddr->b[5] & 0xc0) == 0x40)
1177 return true;
1178
1179 return false;
1180 }
1181
1182 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1183 bdaddr_t *bdaddr, u8 addr_type)
1184 {
1185 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1186 return NULL;
1187
1188 return hci_find_irk_by_rpa(hdev, bdaddr);
1189 }
1190
1191 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1192 u16 to_multiplier)
1193 {
1194 u16 max_latency;
1195
1196 if (min > max || min < 6 || max > 3200)
1197 return -EINVAL;
1198
1199 if (to_multiplier < 10 || to_multiplier > 3200)
1200 return -EINVAL;
1201
1202 if (max >= to_multiplier * 8)
1203 return -EINVAL;
1204
1205 max_latency = (to_multiplier * 8 / max) - 1;
1206 if (latency > 499 || latency > max_latency)
1207 return -EINVAL;
1208
1209 return 0;
1210 }
1211
1212 int hci_register_cb(struct hci_cb *hcb);
1213 int hci_unregister_cb(struct hci_cb *hcb);
1214
1215 struct hci_request {
1216 struct hci_dev *hdev;
1217 struct sk_buff_head cmd_q;
1218
1219 /* If something goes wrong when building the HCI request, the error
1220 * value is stored in this field.
1221 */
1222 int err;
1223 };
1224
1225 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1226 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
1227 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
1228 const void *param);
1229 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
1230 const void *param, u8 event);
1231 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
1232
1233 void hci_req_add_le_scan_disable(struct hci_request *req);
1234 void hci_req_add_le_passive_scan(struct hci_request *req);
1235
1236 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1237 const void *param, u32 timeout);
1238 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1239 const void *param, u8 event, u32 timeout);
1240
1241 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1242 const void *param);
1243 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1244 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1245
1246 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1247
1248 /* ----- HCI Sockets ----- */
1249 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1250 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1251 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1252
1253 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1254
1255 /* Management interface */
1256 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1257 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1258 BIT(BDADDR_LE_RANDOM))
1259 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1260 BIT(BDADDR_LE_PUBLIC) | \
1261 BIT(BDADDR_LE_RANDOM))
1262
1263 /* These LE scan and inquiry parameters were chosen according to LE General
1264 * Discovery Procedure specification.
1265 */
1266 #define DISCOV_LE_SCAN_WIN 0x12
1267 #define DISCOV_LE_SCAN_INT 0x12
1268 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1269 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1270 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1271 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1272
1273 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1274 void mgmt_index_added(struct hci_dev *hdev);
1275 void mgmt_index_removed(struct hci_dev *hdev);
1276 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1277 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1278 void mgmt_discoverable_timeout(struct hci_dev *hdev);
1279 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1280 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1281 void mgmt_advertising(struct hci_dev *hdev, u8 advertising);
1282 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1283 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1284 bool persistent);
1285 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1286 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1287 u8 *dev_class);
1288 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1289 u8 link_type, u8 addr_type, u8 reason,
1290 bool mgmt_connected);
1291 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1292 u8 link_type, u8 addr_type, u8 status);
1293 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1294 u8 addr_type, u8 status);
1295 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1296 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1297 u8 status);
1298 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1299 u8 status);
1300 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1301 u8 link_type, u8 addr_type, u32 value,
1302 u8 confirm_hint);
1303 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1304 u8 link_type, u8 addr_type, u8 status);
1305 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1306 u8 link_type, u8 addr_type, u8 status);
1307 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1308 u8 link_type, u8 addr_type);
1309 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1310 u8 link_type, u8 addr_type, u8 status);
1311 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1312 u8 link_type, u8 addr_type, u8 status);
1313 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1314 u8 link_type, u8 addr_type, u32 passkey,
1315 u8 entered);
1316 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1317 u8 addr_type, u8 status);
1318 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1319 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1320 void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1321 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1322 u8 status);
1323 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1324 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
1325 u8 *randomizer192, u8 *hash256,
1326 u8 *randomizer256, u8 status);
1327 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1328 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1329 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1330 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1331 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1332 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1333 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1334 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk);
1335 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1336 bool persistent);
1337 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1338 u8 bdaddr_type, u16 min_interval, u16 max_interval,
1339 u16 latency, u16 timeout);
1340 void mgmt_reenable_advertising(struct hci_dev *hdev);
1341 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1342
1343 /* HCI info for socket */
1344 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1345
1346 struct hci_pinfo {
1347 struct bt_sock bt;
1348 struct hci_dev *hdev;
1349 struct hci_filter filter;
1350 __u32 cmsg_mask;
1351 unsigned short channel;
1352 };
1353
1354 /* HCI security filter */
1355 #define HCI_SFLT_MAX_OGF 5
1356
1357 struct hci_sec_filter {
1358 __u32 type_mask;
1359 __u32 event_mask[2];
1360 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1361 };
1362
1363 /* ----- HCI requests ----- */
1364 #define HCI_REQ_DONE 0
1365 #define HCI_REQ_PEND 1
1366 #define HCI_REQ_CANCELED 2
1367
1368 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1369 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1370
1371 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1372 u16 latency, u16 to_multiplier);
1373 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1374 __u8 ltk[16]);
1375
1376 int hci_update_random_address(struct hci_request *req, bool require_privacy,
1377 u8 *own_addr_type);
1378 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1379 u8 *bdaddr_type);
1380
1381 #define SCO_AIRMODE_MASK 0x0003
1382 #define SCO_AIRMODE_CVSD 0x0000
1383 #define SCO_AIRMODE_TRANSP 0x0003
1384
1385 #endif /* __HCI_CORE_H */
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