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Bluetooth: Fix locking of the SMP context
[deliverable/linux.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 #include <net/bluetooth/hci_sock.h>
30
31 /* HCI priority */
32 #define HCI_PRIO_MAX 7
33
34 /* HCI Core structures */
35 struct inquiry_data {
36 bdaddr_t bdaddr;
37 __u8 pscan_rep_mode;
38 __u8 pscan_period_mode;
39 __u8 pscan_mode;
40 __u8 dev_class[3];
41 __le16 clock_offset;
42 __s8 rssi;
43 __u8 ssp_mode;
44 };
45
46 struct inquiry_entry {
47 struct list_head all; /* inq_cache.all */
48 struct list_head list; /* unknown or resolve */
49 enum {
50 NAME_NOT_KNOWN,
51 NAME_NEEDED,
52 NAME_PENDING,
53 NAME_KNOWN,
54 } name_state;
55 __u32 timestamp;
56 struct inquiry_data data;
57 };
58
59 struct discovery_state {
60 int type;
61 enum {
62 DISCOVERY_STOPPED,
63 DISCOVERY_STARTING,
64 DISCOVERY_FINDING,
65 DISCOVERY_RESOLVING,
66 DISCOVERY_STOPPING,
67 } state;
68 struct list_head all; /* All devices found during inquiry */
69 struct list_head unknown; /* Name state not known */
70 struct list_head resolve; /* Name needs to be resolved */
71 __u32 timestamp;
72 bdaddr_t last_adv_addr;
73 u8 last_adv_addr_type;
74 s8 last_adv_rssi;
75 u32 last_adv_flags;
76 u8 last_adv_data[HCI_MAX_AD_LENGTH];
77 u8 last_adv_data_len;
78 };
79
80 struct hci_conn_hash {
81 struct list_head list;
82 unsigned int acl_num;
83 unsigned int amp_num;
84 unsigned int sco_num;
85 unsigned int le_num;
86 unsigned int le_num_slave;
87 };
88
89 struct bdaddr_list {
90 struct list_head list;
91 bdaddr_t bdaddr;
92 u8 bdaddr_type;
93 };
94
95 struct bt_uuid {
96 struct list_head list;
97 u8 uuid[16];
98 u8 size;
99 u8 svc_hint;
100 };
101
102 struct smp_csrk {
103 bdaddr_t bdaddr;
104 u8 bdaddr_type;
105 u8 master;
106 u8 val[16];
107 };
108
109 struct smp_ltk {
110 struct list_head list;
111 bdaddr_t bdaddr;
112 u8 bdaddr_type;
113 u8 authenticated;
114 u8 type;
115 u8 enc_size;
116 __le16 ediv;
117 __le64 rand;
118 u8 val[16];
119 };
120
121 struct smp_irk {
122 struct list_head list;
123 bdaddr_t rpa;
124 bdaddr_t bdaddr;
125 u8 addr_type;
126 u8 val[16];
127 };
128
129 struct link_key {
130 struct list_head list;
131 bdaddr_t bdaddr;
132 u8 type;
133 u8 val[HCI_LINK_KEY_SIZE];
134 u8 pin_len;
135 };
136
137 struct oob_data {
138 struct list_head list;
139 bdaddr_t bdaddr;
140 u8 hash192[16];
141 u8 randomizer192[16];
142 u8 hash256[16];
143 u8 randomizer256[16];
144 };
145
146 #define HCI_MAX_SHORT_NAME_LENGTH 10
147
148 /* Default LE RPA expiry time, 15 minutes */
149 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
150
151 /* Default min/max age of connection information (1s/3s) */
152 #define DEFAULT_CONN_INFO_MIN_AGE 1000
153 #define DEFAULT_CONN_INFO_MAX_AGE 3000
154
155 struct amp_assoc {
156 __u16 len;
157 __u16 offset;
158 __u16 rem_len;
159 __u16 len_so_far;
160 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
161 };
162
163 #define HCI_MAX_PAGES 3
164
165 #define NUM_REASSEMBLY 4
166 struct hci_dev {
167 struct list_head list;
168 struct mutex lock;
169
170 char name[8];
171 unsigned long flags;
172 __u16 id;
173 __u8 bus;
174 __u8 dev_type;
175 bdaddr_t bdaddr;
176 bdaddr_t setup_addr;
177 bdaddr_t public_addr;
178 bdaddr_t random_addr;
179 bdaddr_t static_addr;
180 __u8 adv_addr_type;
181 __u8 dev_name[HCI_MAX_NAME_LENGTH];
182 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
183 __u8 eir[HCI_MAX_EIR_LENGTH];
184 __u8 dev_class[3];
185 __u8 major_class;
186 __u8 minor_class;
187 __u8 max_page;
188 __u8 features[HCI_MAX_PAGES][8];
189 __u8 le_features[8];
190 __u8 le_white_list_size;
191 __u8 le_states[8];
192 __u8 commands[64];
193 __u8 hci_ver;
194 __u16 hci_rev;
195 __u8 lmp_ver;
196 __u16 manufacturer;
197 __u16 lmp_subver;
198 __u16 voice_setting;
199 __u8 num_iac;
200 __u8 io_capability;
201 __s8 inq_tx_power;
202 __u16 page_scan_interval;
203 __u16 page_scan_window;
204 __u8 page_scan_type;
205 __u8 le_adv_channel_map;
206 __u16 le_adv_min_interval;
207 __u16 le_adv_max_interval;
208 __u8 le_scan_type;
209 __u16 le_scan_interval;
210 __u16 le_scan_window;
211 __u16 le_conn_min_interval;
212 __u16 le_conn_max_interval;
213 __u16 le_conn_latency;
214 __u16 le_supv_timeout;
215 __u16 discov_interleaved_timeout;
216 __u16 conn_info_min_age;
217 __u16 conn_info_max_age;
218 __u8 ssp_debug_mode;
219 __u32 clock;
220
221 __u16 devid_source;
222 __u16 devid_vendor;
223 __u16 devid_product;
224 __u16 devid_version;
225
226 __u16 pkt_type;
227 __u16 esco_type;
228 __u16 link_policy;
229 __u16 link_mode;
230
231 __u32 idle_timeout;
232 __u16 sniff_min_interval;
233 __u16 sniff_max_interval;
234
235 __u8 amp_status;
236 __u32 amp_total_bw;
237 __u32 amp_max_bw;
238 __u32 amp_min_latency;
239 __u32 amp_max_pdu;
240 __u8 amp_type;
241 __u16 amp_pal_cap;
242 __u16 amp_assoc_size;
243 __u32 amp_max_flush_to;
244 __u32 amp_be_flush_to;
245
246 struct amp_assoc loc_assoc;
247
248 __u8 flow_ctl_mode;
249
250 unsigned int auto_accept_delay;
251
252 unsigned long quirks;
253
254 atomic_t cmd_cnt;
255 unsigned int acl_cnt;
256 unsigned int sco_cnt;
257 unsigned int le_cnt;
258
259 unsigned int acl_mtu;
260 unsigned int sco_mtu;
261 unsigned int le_mtu;
262 unsigned int acl_pkts;
263 unsigned int sco_pkts;
264 unsigned int le_pkts;
265
266 __u16 block_len;
267 __u16 block_mtu;
268 __u16 num_blocks;
269 __u16 block_cnt;
270
271 unsigned long acl_last_tx;
272 unsigned long sco_last_tx;
273 unsigned long le_last_tx;
274
275 struct workqueue_struct *workqueue;
276 struct workqueue_struct *req_workqueue;
277
278 struct work_struct power_on;
279 struct delayed_work power_off;
280
281 __u16 discov_timeout;
282 struct delayed_work discov_off;
283
284 struct delayed_work service_cache;
285
286 struct delayed_work cmd_timer;
287
288 struct work_struct rx_work;
289 struct work_struct cmd_work;
290 struct work_struct tx_work;
291
292 struct sk_buff_head rx_q;
293 struct sk_buff_head raw_q;
294 struct sk_buff_head cmd_q;
295
296 struct sk_buff *recv_evt;
297 struct sk_buff *sent_cmd;
298 struct sk_buff *reassembly[NUM_REASSEMBLY];
299
300 struct mutex req_lock;
301 wait_queue_head_t req_wait_q;
302 __u32 req_status;
303 __u32 req_result;
304
305 void *smp_data;
306
307 struct discovery_state discovery;
308 struct hci_conn_hash conn_hash;
309
310 struct list_head mgmt_pending;
311 struct list_head blacklist;
312 struct list_head whitelist;
313 struct list_head uuids;
314 struct list_head link_keys;
315 struct list_head long_term_keys;
316 struct list_head identity_resolving_keys;
317 struct list_head remote_oob_data;
318 struct list_head le_white_list;
319 struct list_head le_conn_params;
320 struct list_head pend_le_conns;
321 struct list_head pend_le_reports;
322
323 struct hci_dev_stats stat;
324
325 atomic_t promisc;
326
327 struct dentry *debugfs;
328
329 struct device dev;
330
331 struct rfkill *rfkill;
332
333 unsigned long dbg_flags;
334 unsigned long dev_flags;
335
336 struct delayed_work le_scan_disable;
337
338 __s8 adv_tx_power;
339 __u8 adv_data[HCI_MAX_AD_LENGTH];
340 __u8 adv_data_len;
341 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
342 __u8 scan_rsp_data_len;
343
344 __u8 irk[16];
345 __u32 rpa_timeout;
346 struct delayed_work rpa_expired;
347 bdaddr_t rpa;
348
349 int (*open)(struct hci_dev *hdev);
350 int (*close)(struct hci_dev *hdev);
351 int (*flush)(struct hci_dev *hdev);
352 int (*setup)(struct hci_dev *hdev);
353 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
354 void (*notify)(struct hci_dev *hdev, unsigned int evt);
355 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
356 };
357
358 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
359
360 struct hci_conn {
361 struct list_head list;
362
363 atomic_t refcnt;
364
365 bdaddr_t dst;
366 __u8 dst_type;
367 bdaddr_t src;
368 __u8 src_type;
369 bdaddr_t init_addr;
370 __u8 init_addr_type;
371 bdaddr_t resp_addr;
372 __u8 resp_addr_type;
373 __u16 handle;
374 __u16 state;
375 __u8 mode;
376 __u8 type;
377 __u8 role;
378 bool out;
379 __u8 attempt;
380 __u8 dev_class[3];
381 __u8 features[HCI_MAX_PAGES][8];
382 __u16 pkt_type;
383 __u16 link_policy;
384 __u8 key_type;
385 __u8 auth_type;
386 __u8 sec_level;
387 __u8 pending_sec_level;
388 __u8 pin_length;
389 __u8 enc_key_size;
390 __u8 io_capability;
391 __u32 passkey_notify;
392 __u8 passkey_entered;
393 __u16 disc_timeout;
394 __u16 conn_timeout;
395 __u16 setting;
396 __u16 le_conn_min_interval;
397 __u16 le_conn_max_interval;
398 __u16 le_conn_interval;
399 __u16 le_conn_latency;
400 __u16 le_supv_timeout;
401 __s8 rssi;
402 __s8 tx_power;
403 __s8 max_tx_power;
404 unsigned long flags;
405
406 __u32 clock;
407 __u16 clock_accuracy;
408
409 unsigned long conn_info_timestamp;
410
411 __u8 remote_cap;
412 __u8 remote_auth;
413 __u8 remote_id;
414
415 unsigned int sent;
416
417 struct sk_buff_head data_q;
418 struct list_head chan_list;
419
420 struct delayed_work disc_work;
421 struct delayed_work auto_accept_work;
422 struct delayed_work idle_work;
423 struct delayed_work le_conn_timeout;
424
425 struct device dev;
426
427 struct hci_dev *hdev;
428 void *l2cap_data;
429 void *sco_data;
430 struct amp_mgr *amp_mgr;
431
432 struct hci_conn *link;
433
434 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
435 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
436 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
437 };
438
439 struct hci_chan {
440 struct list_head list;
441 __u16 handle;
442 struct hci_conn *conn;
443 struct sk_buff_head data_q;
444 unsigned int sent;
445 __u8 state;
446 };
447
448 struct hci_conn_params {
449 struct list_head list;
450 struct list_head action;
451
452 bdaddr_t addr;
453 u8 addr_type;
454
455 u16 conn_min_interval;
456 u16 conn_max_interval;
457 u16 conn_latency;
458 u16 supervision_timeout;
459
460 enum {
461 HCI_AUTO_CONN_DISABLED,
462 HCI_AUTO_CONN_REPORT,
463 HCI_AUTO_CONN_DIRECT,
464 HCI_AUTO_CONN_ALWAYS,
465 HCI_AUTO_CONN_LINK_LOSS,
466 } auto_connect;
467
468 struct hci_conn *conn;
469 };
470
471 extern struct list_head hci_dev_list;
472 extern struct list_head hci_cb_list;
473 extern rwlock_t hci_dev_list_lock;
474 extern rwlock_t hci_cb_list_lock;
475
476 /* ----- HCI interface to upper protocols ----- */
477 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
478 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
479 int l2cap_disconn_ind(struct hci_conn *hcon);
480 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
481 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
482 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
483
484 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
485 void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
486 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
487 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
488
489 /* ----- Inquiry cache ----- */
490 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
491 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
492
493 static inline void discovery_init(struct hci_dev *hdev)
494 {
495 hdev->discovery.state = DISCOVERY_STOPPED;
496 INIT_LIST_HEAD(&hdev->discovery.all);
497 INIT_LIST_HEAD(&hdev->discovery.unknown);
498 INIT_LIST_HEAD(&hdev->discovery.resolve);
499 }
500
501 bool hci_discovery_active(struct hci_dev *hdev);
502
503 void hci_discovery_set_state(struct hci_dev *hdev, int state);
504
505 static inline int inquiry_cache_empty(struct hci_dev *hdev)
506 {
507 return list_empty(&hdev->discovery.all);
508 }
509
510 static inline long inquiry_cache_age(struct hci_dev *hdev)
511 {
512 struct discovery_state *c = &hdev->discovery;
513 return jiffies - c->timestamp;
514 }
515
516 static inline long inquiry_entry_age(struct inquiry_entry *e)
517 {
518 return jiffies - e->timestamp;
519 }
520
521 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
522 bdaddr_t *bdaddr);
523 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
524 bdaddr_t *bdaddr);
525 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
526 bdaddr_t *bdaddr,
527 int state);
528 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
529 struct inquiry_entry *ie);
530 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
531 bool name_known);
532 void hci_inquiry_cache_flush(struct hci_dev *hdev);
533
534 /* ----- HCI Connections ----- */
535 enum {
536 HCI_CONN_AUTH_PEND,
537 HCI_CONN_REAUTH_PEND,
538 HCI_CONN_ENCRYPT_PEND,
539 HCI_CONN_RSWITCH_PEND,
540 HCI_CONN_MODE_CHANGE_PEND,
541 HCI_CONN_SCO_SETUP_PEND,
542 HCI_CONN_MGMT_CONNECTED,
543 HCI_CONN_SSP_ENABLED,
544 HCI_CONN_SC_ENABLED,
545 HCI_CONN_AES_CCM,
546 HCI_CONN_POWER_SAVE,
547 HCI_CONN_REMOTE_OOB,
548 HCI_CONN_FLUSH_KEY,
549 HCI_CONN_ENCRYPT,
550 HCI_CONN_AUTH,
551 HCI_CONN_SECURE,
552 HCI_CONN_FIPS,
553 HCI_CONN_STK_ENCRYPT,
554 HCI_CONN_AUTH_INITIATOR,
555 HCI_CONN_DROP,
556 };
557
558 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
559 {
560 struct hci_dev *hdev = conn->hdev;
561 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
562 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
563 }
564
565 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
566 {
567 struct hci_dev *hdev = conn->hdev;
568 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) &&
569 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
570 }
571
572 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
573 {
574 struct hci_conn_hash *h = &hdev->conn_hash;
575 list_add_rcu(&c->list, &h->list);
576 switch (c->type) {
577 case ACL_LINK:
578 h->acl_num++;
579 break;
580 case AMP_LINK:
581 h->amp_num++;
582 break;
583 case LE_LINK:
584 h->le_num++;
585 if (c->role == HCI_ROLE_SLAVE)
586 h->le_num_slave++;
587 break;
588 case SCO_LINK:
589 case ESCO_LINK:
590 h->sco_num++;
591 break;
592 }
593 }
594
595 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
596 {
597 struct hci_conn_hash *h = &hdev->conn_hash;
598
599 list_del_rcu(&c->list);
600 synchronize_rcu();
601
602 switch (c->type) {
603 case ACL_LINK:
604 h->acl_num--;
605 break;
606 case AMP_LINK:
607 h->amp_num--;
608 break;
609 case LE_LINK:
610 h->le_num--;
611 if (c->role == HCI_ROLE_SLAVE)
612 h->le_num_slave--;
613 break;
614 case SCO_LINK:
615 case ESCO_LINK:
616 h->sco_num--;
617 break;
618 }
619 }
620
621 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
622 {
623 struct hci_conn_hash *h = &hdev->conn_hash;
624 switch (type) {
625 case ACL_LINK:
626 return h->acl_num;
627 case AMP_LINK:
628 return h->amp_num;
629 case LE_LINK:
630 return h->le_num;
631 case SCO_LINK:
632 case ESCO_LINK:
633 return h->sco_num;
634 default:
635 return 0;
636 }
637 }
638
639 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
640 {
641 struct hci_conn_hash *c = &hdev->conn_hash;
642
643 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
644 }
645
646 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
647 __u16 handle)
648 {
649 struct hci_conn_hash *h = &hdev->conn_hash;
650 struct hci_conn *c;
651
652 rcu_read_lock();
653
654 list_for_each_entry_rcu(c, &h->list, list) {
655 if (c->handle == handle) {
656 rcu_read_unlock();
657 return c;
658 }
659 }
660 rcu_read_unlock();
661
662 return NULL;
663 }
664
665 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
666 __u8 type, bdaddr_t *ba)
667 {
668 struct hci_conn_hash *h = &hdev->conn_hash;
669 struct hci_conn *c;
670
671 rcu_read_lock();
672
673 list_for_each_entry_rcu(c, &h->list, list) {
674 if (c->type == type && !bacmp(&c->dst, ba)) {
675 rcu_read_unlock();
676 return c;
677 }
678 }
679
680 rcu_read_unlock();
681
682 return NULL;
683 }
684
685 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
686 __u8 type, __u16 state)
687 {
688 struct hci_conn_hash *h = &hdev->conn_hash;
689 struct hci_conn *c;
690
691 rcu_read_lock();
692
693 list_for_each_entry_rcu(c, &h->list, list) {
694 if (c->type == type && c->state == state) {
695 rcu_read_unlock();
696 return c;
697 }
698 }
699
700 rcu_read_unlock();
701
702 return NULL;
703 }
704
705 int hci_disconnect(struct hci_conn *conn, __u8 reason);
706 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
707 void hci_sco_setup(struct hci_conn *conn, __u8 status);
708
709 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
710 u8 role);
711 int hci_conn_del(struct hci_conn *conn);
712 void hci_conn_hash_flush(struct hci_dev *hdev);
713 void hci_conn_check_pending(struct hci_dev *hdev);
714
715 struct hci_chan *hci_chan_create(struct hci_conn *conn);
716 void hci_chan_del(struct hci_chan *chan);
717 void hci_chan_list_flush(struct hci_conn *conn);
718 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
719
720 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
721 u8 dst_type, u8 sec_level, u16 conn_timeout,
722 u8 role);
723 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
724 u8 sec_level, u8 auth_type);
725 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
726 __u16 setting);
727 int hci_conn_check_link_mode(struct hci_conn *conn);
728 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
729 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
730 bool initiator);
731 int hci_conn_change_link_key(struct hci_conn *conn);
732 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
733
734 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
735
736 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
737
738 /*
739 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
740 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
741 * working or anything else. They just guarantee that the object is available
742 * and can be dereferenced. So you can use its locks, local variables and any
743 * other constant data.
744 * Before accessing runtime data, you _must_ lock the object and then check that
745 * it is still running. As soon as you release the locks, the connection might
746 * get dropped, though.
747 *
748 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
749 * how long the underlying connection is held. So every channel that runs on the
750 * hci_conn object calls this to prevent the connection from disappearing. As
751 * long as you hold a device, you must also guarantee that you have a valid
752 * reference to the device via hci_conn_get() (or the initial reference from
753 * hci_conn_add()).
754 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
755 * break because nobody cares for that. But this means, we cannot use
756 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
757 */
758
759 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
760 {
761 get_device(&conn->dev);
762 return conn;
763 }
764
765 static inline void hci_conn_put(struct hci_conn *conn)
766 {
767 put_device(&conn->dev);
768 }
769
770 static inline void hci_conn_hold(struct hci_conn *conn)
771 {
772 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
773
774 atomic_inc(&conn->refcnt);
775 cancel_delayed_work(&conn->disc_work);
776 }
777
778 static inline void hci_conn_drop(struct hci_conn *conn)
779 {
780 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
781
782 if (atomic_dec_and_test(&conn->refcnt)) {
783 unsigned long timeo;
784
785 switch (conn->type) {
786 case ACL_LINK:
787 case LE_LINK:
788 cancel_delayed_work(&conn->idle_work);
789 if (conn->state == BT_CONNECTED) {
790 timeo = conn->disc_timeout;
791 if (!conn->out)
792 timeo *= 2;
793 } else {
794 timeo = 0;
795 }
796 break;
797
798 case AMP_LINK:
799 timeo = conn->disc_timeout;
800 break;
801
802 default:
803 timeo = 0;
804 break;
805 }
806
807 cancel_delayed_work(&conn->disc_work);
808 queue_delayed_work(conn->hdev->workqueue,
809 &conn->disc_work, timeo);
810 }
811 }
812
813 /* ----- HCI Devices ----- */
814 static inline void hci_dev_put(struct hci_dev *d)
815 {
816 BT_DBG("%s orig refcnt %d", d->name,
817 atomic_read(&d->dev.kobj.kref.refcount));
818
819 put_device(&d->dev);
820 }
821
822 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
823 {
824 BT_DBG("%s orig refcnt %d", d->name,
825 atomic_read(&d->dev.kobj.kref.refcount));
826
827 get_device(&d->dev);
828 return d;
829 }
830
831 #define hci_dev_lock(d) mutex_lock(&d->lock)
832 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
833
834 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
835 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
836
837 static inline void *hci_get_drvdata(struct hci_dev *hdev)
838 {
839 return dev_get_drvdata(&hdev->dev);
840 }
841
842 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
843 {
844 dev_set_drvdata(&hdev->dev, data);
845 }
846
847 struct hci_dev *hci_dev_get(int index);
848 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
849
850 struct hci_dev *hci_alloc_dev(void);
851 void hci_free_dev(struct hci_dev *hdev);
852 int hci_register_dev(struct hci_dev *hdev);
853 void hci_unregister_dev(struct hci_dev *hdev);
854 int hci_suspend_dev(struct hci_dev *hdev);
855 int hci_resume_dev(struct hci_dev *hdev);
856 int hci_dev_open(__u16 dev);
857 int hci_dev_close(__u16 dev);
858 int hci_dev_reset(__u16 dev);
859 int hci_dev_reset_stat(__u16 dev);
860 int hci_dev_cmd(unsigned int cmd, void __user *arg);
861 int hci_get_dev_list(void __user *arg);
862 int hci_get_dev_info(void __user *arg);
863 int hci_get_conn_list(void __user *arg);
864 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
865 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
866 int hci_inquiry(void __user *arg);
867
868 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
869 bdaddr_t *bdaddr, u8 type);
870 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
871 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
872 void hci_bdaddr_list_clear(struct list_head *list);
873
874 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
875 bdaddr_t *addr, u8 addr_type);
876 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
877 bdaddr_t *addr, u8 addr_type);
878 int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
879 u8 auto_connect);
880 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
881 void hci_conn_params_clear_all(struct hci_dev *hdev);
882 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
883
884 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
885 bdaddr_t *addr,
886 u8 addr_type);
887
888 void hci_update_background_scan(struct hci_dev *hdev);
889
890 void hci_uuids_clear(struct hci_dev *hdev);
891
892 void hci_link_keys_clear(struct hci_dev *hdev);
893 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
894 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
895 bdaddr_t *bdaddr, u8 *val, u8 type,
896 u8 pin_len, bool *persistent);
897 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand,
898 u8 role);
899 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
900 u8 addr_type, u8 type, u8 authenticated,
901 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
902 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
903 u8 addr_type, u8 role);
904 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
905 void hci_smp_ltks_clear(struct hci_dev *hdev);
906 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
907
908 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
909 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
910 u8 addr_type);
911 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
912 u8 addr_type, u8 val[16], bdaddr_t *rpa);
913 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
914 void hci_smp_irks_clear(struct hci_dev *hdev);
915
916 void hci_remote_oob_data_clear(struct hci_dev *hdev);
917 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
918 bdaddr_t *bdaddr);
919 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
920 u8 *hash, u8 *randomizer);
921 int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
922 u8 *hash192, u8 *randomizer192,
923 u8 *hash256, u8 *randomizer256);
924 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
925
926 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
927
928 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
929 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
930 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
931
932 void hci_init_sysfs(struct hci_dev *hdev);
933 void hci_conn_init_sysfs(struct hci_conn *conn);
934 void hci_conn_add_sysfs(struct hci_conn *conn);
935 void hci_conn_del_sysfs(struct hci_conn *conn);
936
937 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
938
939 /* ----- LMP capabilities ----- */
940 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
941 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
942 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
943 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
944 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
945 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
946 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
947 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
948 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
949 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
950 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
951 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
952 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
953 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
954 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
955 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
956 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
957 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
958 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
959
960 /* ----- Extended LMP capabilities ----- */
961 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
962 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
963 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
964 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
965 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
966 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
967
968 /* ----- Host capabilities ----- */
969 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
970 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
971 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
972 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
973
974 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
975 !test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
976
977 /* ----- HCI protocols ----- */
978 #define HCI_PROTO_DEFER 0x01
979
980 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
981 __u8 type, __u8 *flags)
982 {
983 switch (type) {
984 case ACL_LINK:
985 return l2cap_connect_ind(hdev, bdaddr);
986
987 case SCO_LINK:
988 case ESCO_LINK:
989 return sco_connect_ind(hdev, bdaddr, flags);
990
991 default:
992 BT_ERR("unknown link type %d", type);
993 return -EINVAL;
994 }
995 }
996
997 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
998 {
999 switch (conn->type) {
1000 case ACL_LINK:
1001 case LE_LINK:
1002 l2cap_connect_cfm(conn, status);
1003 break;
1004
1005 case SCO_LINK:
1006 case ESCO_LINK:
1007 sco_connect_cfm(conn, status);
1008 break;
1009
1010 default:
1011 BT_ERR("unknown link type %d", conn->type);
1012 break;
1013 }
1014
1015 if (conn->connect_cfm_cb)
1016 conn->connect_cfm_cb(conn, status);
1017 }
1018
1019 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1020 {
1021 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1022 return HCI_ERROR_REMOTE_USER_TERM;
1023
1024 return l2cap_disconn_ind(conn);
1025 }
1026
1027 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
1028 {
1029 switch (conn->type) {
1030 case ACL_LINK:
1031 case LE_LINK:
1032 l2cap_disconn_cfm(conn, reason);
1033 break;
1034
1035 case SCO_LINK:
1036 case ESCO_LINK:
1037 sco_disconn_cfm(conn, reason);
1038 break;
1039
1040 /* L2CAP would be handled for BREDR chan */
1041 case AMP_LINK:
1042 break;
1043
1044 default:
1045 BT_ERR("unknown link type %d", conn->type);
1046 break;
1047 }
1048
1049 if (conn->disconn_cfm_cb)
1050 conn->disconn_cfm_cb(conn, reason);
1051 }
1052
1053 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
1054 {
1055 __u8 encrypt;
1056
1057 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1058 return;
1059
1060 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1061 return;
1062
1063 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1064 l2cap_security_cfm(conn, status, encrypt);
1065
1066 if (conn->security_cfm_cb)
1067 conn->security_cfm_cb(conn, status);
1068 }
1069
1070 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
1071 __u8 encrypt)
1072 {
1073 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1074 return;
1075
1076 l2cap_security_cfm(conn, status, encrypt);
1077
1078 if (conn->security_cfm_cb)
1079 conn->security_cfm_cb(conn, status);
1080 }
1081
1082 /* ----- HCI callbacks ----- */
1083 struct hci_cb {
1084 struct list_head list;
1085
1086 char *name;
1087
1088 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1089 __u8 encrypt);
1090 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1091 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1092 };
1093
1094 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1095 {
1096 struct hci_cb *cb;
1097 __u8 encrypt;
1098
1099 hci_proto_auth_cfm(conn, status);
1100
1101 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1102 return;
1103
1104 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1105
1106 read_lock(&hci_cb_list_lock);
1107 list_for_each_entry(cb, &hci_cb_list, list) {
1108 if (cb->security_cfm)
1109 cb->security_cfm(conn, status, encrypt);
1110 }
1111 read_unlock(&hci_cb_list_lock);
1112 }
1113
1114 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1115 __u8 encrypt)
1116 {
1117 struct hci_cb *cb;
1118
1119 if (conn->sec_level == BT_SECURITY_SDP)
1120 conn->sec_level = BT_SECURITY_LOW;
1121
1122 if (conn->pending_sec_level > conn->sec_level)
1123 conn->sec_level = conn->pending_sec_level;
1124
1125 hci_proto_encrypt_cfm(conn, status, encrypt);
1126
1127 read_lock(&hci_cb_list_lock);
1128 list_for_each_entry(cb, &hci_cb_list, list) {
1129 if (cb->security_cfm)
1130 cb->security_cfm(conn, status, encrypt);
1131 }
1132 read_unlock(&hci_cb_list_lock);
1133 }
1134
1135 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1136 {
1137 struct hci_cb *cb;
1138
1139 read_lock(&hci_cb_list_lock);
1140 list_for_each_entry(cb, &hci_cb_list, list) {
1141 if (cb->key_change_cfm)
1142 cb->key_change_cfm(conn, status);
1143 }
1144 read_unlock(&hci_cb_list_lock);
1145 }
1146
1147 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1148 __u8 role)
1149 {
1150 struct hci_cb *cb;
1151
1152 read_lock(&hci_cb_list_lock);
1153 list_for_each_entry(cb, &hci_cb_list, list) {
1154 if (cb->role_switch_cfm)
1155 cb->role_switch_cfm(conn, status, role);
1156 }
1157 read_unlock(&hci_cb_list_lock);
1158 }
1159
1160 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
1161 {
1162 size_t parsed = 0;
1163
1164 if (data_len < 2)
1165 return false;
1166
1167 while (parsed < data_len - 1) {
1168 u8 field_len = data[0];
1169
1170 if (field_len == 0)
1171 break;
1172
1173 parsed += field_len + 1;
1174
1175 if (parsed > data_len)
1176 break;
1177
1178 if (data[1] == type)
1179 return true;
1180
1181 data += field_len + 1;
1182 }
1183
1184 return false;
1185 }
1186
1187 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1188 {
1189 if (addr_type != ADDR_LE_DEV_RANDOM)
1190 return false;
1191
1192 if ((bdaddr->b[5] & 0xc0) == 0x40)
1193 return true;
1194
1195 return false;
1196 }
1197
1198 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1199 {
1200 if (addr_type == ADDR_LE_DEV_PUBLIC)
1201 return true;
1202
1203 /* Check for Random Static address type */
1204 if ((addr->b[5] & 0xc0) == 0xc0)
1205 return true;
1206
1207 return false;
1208 }
1209
1210 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1211 bdaddr_t *bdaddr, u8 addr_type)
1212 {
1213 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1214 return NULL;
1215
1216 return hci_find_irk_by_rpa(hdev, bdaddr);
1217 }
1218
1219 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1220 u16 to_multiplier)
1221 {
1222 u16 max_latency;
1223
1224 if (min > max || min < 6 || max > 3200)
1225 return -EINVAL;
1226
1227 if (to_multiplier < 10 || to_multiplier > 3200)
1228 return -EINVAL;
1229
1230 if (max >= to_multiplier * 8)
1231 return -EINVAL;
1232
1233 max_latency = (to_multiplier * 8 / max) - 1;
1234 if (latency > 499 || latency > max_latency)
1235 return -EINVAL;
1236
1237 return 0;
1238 }
1239
1240 int hci_register_cb(struct hci_cb *hcb);
1241 int hci_unregister_cb(struct hci_cb *hcb);
1242
1243 struct hci_request {
1244 struct hci_dev *hdev;
1245 struct sk_buff_head cmd_q;
1246
1247 /* If something goes wrong when building the HCI request, the error
1248 * value is stored in this field.
1249 */
1250 int err;
1251 };
1252
1253 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1254 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
1255 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
1256 const void *param);
1257 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
1258 const void *param, u8 event);
1259 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
1260 bool hci_req_pending(struct hci_dev *hdev);
1261
1262 void hci_req_add_le_scan_disable(struct hci_request *req);
1263 void hci_req_add_le_passive_scan(struct hci_request *req);
1264
1265 void hci_update_page_scan(struct hci_dev *hdev, struct hci_request *req);
1266
1267 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1268 const void *param, u32 timeout);
1269 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1270 const void *param, u8 event, u32 timeout);
1271
1272 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1273 const void *param);
1274 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1275 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1276
1277 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1278
1279 /* ----- HCI Sockets ----- */
1280 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1281 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1282 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1283
1284 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1285
1286 /* Management interface */
1287 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1288 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1289 BIT(BDADDR_LE_RANDOM))
1290 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1291 BIT(BDADDR_LE_PUBLIC) | \
1292 BIT(BDADDR_LE_RANDOM))
1293
1294 /* These LE scan and inquiry parameters were chosen according to LE General
1295 * Discovery Procedure specification.
1296 */
1297 #define DISCOV_LE_SCAN_WIN 0x12
1298 #define DISCOV_LE_SCAN_INT 0x12
1299 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1300 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1301 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1302 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1303
1304 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1305 int mgmt_new_settings(struct hci_dev *hdev);
1306 void mgmt_index_added(struct hci_dev *hdev);
1307 void mgmt_index_removed(struct hci_dev *hdev);
1308 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1309 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1310 int mgmt_update_adv_data(struct hci_dev *hdev);
1311 void mgmt_discoverable_timeout(struct hci_dev *hdev);
1312 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1313 bool persistent);
1314 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1315 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1316 u8 *dev_class);
1317 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1318 u8 link_type, u8 addr_type, u8 reason,
1319 bool mgmt_connected);
1320 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1321 u8 link_type, u8 addr_type, u8 status);
1322 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1323 u8 addr_type, u8 status);
1324 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1325 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1326 u8 status);
1327 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1328 u8 status);
1329 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1330 u8 link_type, u8 addr_type, u32 value,
1331 u8 confirm_hint);
1332 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1333 u8 link_type, u8 addr_type, u8 status);
1334 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1335 u8 link_type, u8 addr_type, u8 status);
1336 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1337 u8 link_type, u8 addr_type);
1338 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1339 u8 link_type, u8 addr_type, u8 status);
1340 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1341 u8 link_type, u8 addr_type, u8 status);
1342 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1343 u8 link_type, u8 addr_type, u32 passkey,
1344 u8 entered);
1345 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1346 u8 addr_type, u8 status);
1347 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1348 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1349 void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1350 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1351 u8 status);
1352 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1353 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
1354 u8 *randomizer192, u8 *hash256,
1355 u8 *randomizer256, u8 status);
1356 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1357 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1358 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1359 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1360 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1361 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1362 bool mgmt_powering_down(struct hci_dev *hdev);
1363 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1364 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk);
1365 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1366 bool persistent);
1367 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1368 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1369 u16 max_interval, u16 latency, u16 timeout);
1370 void mgmt_reenable_advertising(struct hci_dev *hdev);
1371 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1372
1373 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1374 u16 to_multiplier);
1375 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1376 __u8 ltk[16]);
1377
1378 int hci_update_random_address(struct hci_request *req, bool require_privacy,
1379 u8 *own_addr_type);
1380 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1381 u8 *bdaddr_type);
1382
1383 #define SCO_AIRMODE_MASK 0x0003
1384 #define SCO_AIRMODE_CVSD 0x0000
1385 #define SCO_AIRMODE_TRANSP 0x0003
1386
1387 #endif /* __HCI_CORE_H */
Linux kernel - Deliverables
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