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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 <linux/leds.h>
29#include <net/bluetooth/hci.h>
30#include <net/bluetooth/hci_sock.h>
31
32/* HCI priority */
33#define HCI_PRIO_MAX 7
34
35/* HCI Core structures */
36struct inquiry_data {
37 bdaddr_t bdaddr;
38 __u8 pscan_rep_mode;
39 __u8 pscan_period_mode;
40 __u8 pscan_mode;
41 __u8 dev_class[3];
42 __le16 clock_offset;
43 __s8 rssi;
44 __u8 ssp_mode;
45};
46
47struct inquiry_entry {
48 struct list_head all; /* inq_cache.all */
49 struct list_head list; /* unknown or resolve */
50 enum {
51 NAME_NOT_KNOWN,
52 NAME_NEEDED,
53 NAME_PENDING,
54 NAME_KNOWN,
55 } name_state;
56 __u32 timestamp;
57 struct inquiry_data data;
58};
59
60struct discovery_state {
61 int type;
62 enum {
63 DISCOVERY_STOPPED,
64 DISCOVERY_STARTING,
65 DISCOVERY_FINDING,
66 DISCOVERY_RESOLVING,
67 DISCOVERY_STOPPING,
68 } state;
69 struct list_head all; /* All devices found during inquiry */
70 struct list_head unknown; /* Name state not known */
71 struct list_head resolve; /* Name needs to be resolved */
72 __u32 timestamp;
73 bdaddr_t last_adv_addr;
74 u8 last_adv_addr_type;
75 s8 last_adv_rssi;
76 u32 last_adv_flags;
77 u8 last_adv_data[HCI_MAX_AD_LENGTH];
78 u8 last_adv_data_len;
79 bool report_invalid_rssi;
80 bool result_filtering;
81 bool limited;
82 s8 rssi;
83 u16 uuid_count;
84 u8 (*uuids)[16];
85 unsigned long scan_start;
86 unsigned long scan_duration;
87};
88
89struct hci_conn_hash {
90 struct list_head list;
91 unsigned int acl_num;
92 unsigned int amp_num;
93 unsigned int sco_num;
94 unsigned int le_num;
95 unsigned int le_num_slave;
96};
97
98struct bdaddr_list {
99 struct list_head list;
100 bdaddr_t bdaddr;
101 u8 bdaddr_type;
102};
103
104struct bt_uuid {
105 struct list_head list;
106 u8 uuid[16];
107 u8 size;
108 u8 svc_hint;
109};
110
111struct smp_csrk {
112 bdaddr_t bdaddr;
113 u8 bdaddr_type;
114 u8 type;
115 u8 val[16];
116};
117
118struct smp_ltk {
119 struct list_head list;
120 struct rcu_head rcu;
121 bdaddr_t bdaddr;
122 u8 bdaddr_type;
123 u8 authenticated;
124 u8 type;
125 u8 enc_size;
126 __le16 ediv;
127 __le64 rand;
128 u8 val[16];
129};
130
131struct smp_irk {
132 struct list_head list;
133 struct rcu_head rcu;
134 bdaddr_t rpa;
135 bdaddr_t bdaddr;
136 u8 addr_type;
137 u8 val[16];
138};
139
140struct link_key {
141 struct list_head list;
142 struct rcu_head rcu;
143 bdaddr_t bdaddr;
144 u8 type;
145 u8 val[HCI_LINK_KEY_SIZE];
146 u8 pin_len;
147};
148
149struct oob_data {
150 struct list_head list;
151 bdaddr_t bdaddr;
152 u8 bdaddr_type;
153 u8 present;
154 u8 hash192[16];
155 u8 rand192[16];
156 u8 hash256[16];
157 u8 rand256[16];
158};
159
160struct adv_info {
161 struct list_head list;
162 bool pending;
163 __u8 instance;
164 __u32 flags;
165 __u16 timeout;
166 __u16 remaining_time;
167 __u16 duration;
168 __u16 adv_data_len;
169 __u8 adv_data[HCI_MAX_AD_LENGTH];
170 __u16 scan_rsp_len;
171 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
172};
173
174#define HCI_MAX_ADV_INSTANCES 5
175#define HCI_DEFAULT_ADV_DURATION 2
176
177#define HCI_MAX_SHORT_NAME_LENGTH 10
178
179/* Default LE RPA expiry time, 15 minutes */
180#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
181
182/* Default min/max age of connection information (1s/3s) */
183#define DEFAULT_CONN_INFO_MIN_AGE 1000
184#define DEFAULT_CONN_INFO_MAX_AGE 3000
185
186struct amp_assoc {
187 __u16 len;
188 __u16 offset;
189 __u16 rem_len;
190 __u16 len_so_far;
191 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
192};
193
194#define HCI_MAX_PAGES 3
195
196struct hci_dev {
197 struct list_head list;
198 struct mutex lock;
199
200 char name[8];
201 unsigned long flags;
202 __u16 id;
203 __u8 bus;
204 __u8 dev_type;
205 bdaddr_t bdaddr;
206 bdaddr_t setup_addr;
207 bdaddr_t public_addr;
208 bdaddr_t random_addr;
209 bdaddr_t static_addr;
210 __u8 adv_addr_type;
211 __u8 dev_name[HCI_MAX_NAME_LENGTH];
212 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
213 __u8 eir[HCI_MAX_EIR_LENGTH];
214 __u8 dev_class[3];
215 __u8 major_class;
216 __u8 minor_class;
217 __u8 max_page;
218 __u8 features[HCI_MAX_PAGES][8];
219 __u8 le_features[8];
220 __u8 le_white_list_size;
221 __u8 le_states[8];
222 __u8 commands[64];
223 __u8 hci_ver;
224 __u16 hci_rev;
225 __u8 lmp_ver;
226 __u16 manufacturer;
227 __u16 lmp_subver;
228 __u16 voice_setting;
229 __u8 num_iac;
230 __u8 stored_max_keys;
231 __u8 stored_num_keys;
232 __u8 io_capability;
233 __s8 inq_tx_power;
234 __u16 page_scan_interval;
235 __u16 page_scan_window;
236 __u8 page_scan_type;
237 __u8 le_adv_channel_map;
238 __u16 le_adv_min_interval;
239 __u16 le_adv_max_interval;
240 __u8 le_scan_type;
241 __u16 le_scan_interval;
242 __u16 le_scan_window;
243 __u16 le_conn_min_interval;
244 __u16 le_conn_max_interval;
245 __u16 le_conn_latency;
246 __u16 le_supv_timeout;
247 __u16 le_def_tx_len;
248 __u16 le_def_tx_time;
249 __u16 le_max_tx_len;
250 __u16 le_max_tx_time;
251 __u16 le_max_rx_len;
252 __u16 le_max_rx_time;
253 __u16 discov_interleaved_timeout;
254 __u16 conn_info_min_age;
255 __u16 conn_info_max_age;
256 __u8 ssp_debug_mode;
257 __u8 hw_error_code;
258 __u32 clock;
259
260 __u16 devid_source;
261 __u16 devid_vendor;
262 __u16 devid_product;
263 __u16 devid_version;
264
265 __u16 pkt_type;
266 __u16 esco_type;
267 __u16 link_policy;
268 __u16 link_mode;
269
270 __u32 idle_timeout;
271 __u16 sniff_min_interval;
272 __u16 sniff_max_interval;
273
274 __u8 amp_status;
275 __u32 amp_total_bw;
276 __u32 amp_max_bw;
277 __u32 amp_min_latency;
278 __u32 amp_max_pdu;
279 __u8 amp_type;
280 __u16 amp_pal_cap;
281 __u16 amp_assoc_size;
282 __u32 amp_max_flush_to;
283 __u32 amp_be_flush_to;
284
285 struct amp_assoc loc_assoc;
286
287 __u8 flow_ctl_mode;
288
289 unsigned int auto_accept_delay;
290
291 unsigned long quirks;
292
293 atomic_t cmd_cnt;
294 unsigned int acl_cnt;
295 unsigned int sco_cnt;
296 unsigned int le_cnt;
297
298 unsigned int acl_mtu;
299 unsigned int sco_mtu;
300 unsigned int le_mtu;
301 unsigned int acl_pkts;
302 unsigned int sco_pkts;
303 unsigned int le_pkts;
304
305 __u16 block_len;
306 __u16 block_mtu;
307 __u16 num_blocks;
308 __u16 block_cnt;
309
310 unsigned long acl_last_tx;
311 unsigned long sco_last_tx;
312 unsigned long le_last_tx;
313
314 struct workqueue_struct *workqueue;
315 struct workqueue_struct *req_workqueue;
316
317 struct work_struct power_on;
318 struct delayed_work power_off;
319 struct work_struct error_reset;
320
321 __u16 discov_timeout;
322 struct delayed_work discov_off;
323
324 struct delayed_work service_cache;
325
326 struct delayed_work cmd_timer;
327
328 struct work_struct rx_work;
329 struct work_struct cmd_work;
330 struct work_struct tx_work;
331
332 struct work_struct discov_update;
333 struct work_struct bg_scan_update;
334 struct work_struct scan_update;
335 struct work_struct connectable_update;
336 struct work_struct discoverable_update;
337 struct delayed_work le_scan_disable;
338 struct delayed_work le_scan_restart;
339
340 struct sk_buff_head rx_q;
341 struct sk_buff_head raw_q;
342 struct sk_buff_head cmd_q;
343
344 struct sk_buff *sent_cmd;
345
346 struct mutex req_lock;
347 wait_queue_head_t req_wait_q;
348 __u32 req_status;
349 __u32 req_result;
350 struct sk_buff *req_skb;
351
352 void *smp_data;
353 void *smp_bredr_data;
354
355 struct discovery_state discovery;
356 struct hci_conn_hash conn_hash;
357
358 struct list_head mgmt_pending;
359 struct list_head blacklist;
360 struct list_head whitelist;
361 struct list_head uuids;
362 struct list_head link_keys;
363 struct list_head long_term_keys;
364 struct list_head identity_resolving_keys;
365 struct list_head remote_oob_data;
366 struct list_head le_white_list;
367 struct list_head le_conn_params;
368 struct list_head pend_le_conns;
369 struct list_head pend_le_reports;
370
371 struct hci_dev_stats stat;
372
373 atomic_t promisc;
374
375 struct dentry *debugfs;
376
377 struct device dev;
378
379 struct rfkill *rfkill;
380
381 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
382
383 __s8 adv_tx_power;
384 __u8 adv_data[HCI_MAX_AD_LENGTH];
385 __u8 adv_data_len;
386 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
387 __u8 scan_rsp_data_len;
388
389 struct list_head adv_instances;
390 unsigned int adv_instance_cnt;
391 __u8 cur_adv_instance;
392 __u16 adv_instance_timeout;
393 struct delayed_work adv_instance_expire;
394
395 __u8 irk[16];
396 __u32 rpa_timeout;
397 struct delayed_work rpa_expired;
398 bdaddr_t rpa;
399
400 struct led_trigger *power_led;
401
402 int (*open)(struct hci_dev *hdev);
403 int (*close)(struct hci_dev *hdev);
404 int (*flush)(struct hci_dev *hdev);
405 int (*setup)(struct hci_dev *hdev);
406 int (*shutdown)(struct hci_dev *hdev);
407 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
408 void (*notify)(struct hci_dev *hdev, unsigned int evt);
409 void (*hw_error)(struct hci_dev *hdev, u8 code);
410 int (*post_init)(struct hci_dev *hdev);
411 int (*set_diag)(struct hci_dev *hdev, bool enable);
412 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
413};
414
415#define HCI_PHY_HANDLE(handle) (handle & 0xff)
416
417struct hci_conn {
418 struct list_head list;
419
420 atomic_t refcnt;
421
422 bdaddr_t dst;
423 __u8 dst_type;
424 bdaddr_t src;
425 __u8 src_type;
426 bdaddr_t init_addr;
427 __u8 init_addr_type;
428 bdaddr_t resp_addr;
429 __u8 resp_addr_type;
430 __u16 handle;
431 __u16 state;
432 __u8 mode;
433 __u8 type;
434 __u8 role;
435 bool out;
436 __u8 attempt;
437 __u8 dev_class[3];
438 __u8 features[HCI_MAX_PAGES][8];
439 __u16 pkt_type;
440 __u16 link_policy;
441 __u8 key_type;
442 __u8 auth_type;
443 __u8 sec_level;
444 __u8 pending_sec_level;
445 __u8 pin_length;
446 __u8 enc_key_size;
447 __u8 io_capability;
448 __u32 passkey_notify;
449 __u8 passkey_entered;
450 __u16 disc_timeout;
451 __u16 conn_timeout;
452 __u16 setting;
453 __u16 le_conn_min_interval;
454 __u16 le_conn_max_interval;
455 __u16 le_conn_interval;
456 __u16 le_conn_latency;
457 __u16 le_supv_timeout;
458 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
459 __u8 le_adv_data_len;
460 __s8 rssi;
461 __s8 tx_power;
462 __s8 max_tx_power;
463 unsigned long flags;
464
465 __u32 clock;
466 __u16 clock_accuracy;
467
468 unsigned long conn_info_timestamp;
469
470 __u8 remote_cap;
471 __u8 remote_auth;
472 __u8 remote_id;
473
474 unsigned int sent;
475
476 struct sk_buff_head data_q;
477 struct list_head chan_list;
478
479 struct delayed_work disc_work;
480 struct delayed_work auto_accept_work;
481 struct delayed_work idle_work;
482 struct delayed_work le_conn_timeout;
483 struct work_struct le_scan_cleanup;
484
485 struct device dev;
486 struct dentry *debugfs;
487
488 struct hci_dev *hdev;
489 void *l2cap_data;
490 void *sco_data;
491 struct amp_mgr *amp_mgr;
492
493 struct hci_conn *link;
494
495 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
496 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
497 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
498};
499
500struct hci_chan {
501 struct list_head list;
502 __u16 handle;
503 struct hci_conn *conn;
504 struct sk_buff_head data_q;
505 unsigned int sent;
506 __u8 state;
507};
508
509struct hci_conn_params {
510 struct list_head list;
511 struct list_head action;
512
513 bdaddr_t addr;
514 u8 addr_type;
515
516 u16 conn_min_interval;
517 u16 conn_max_interval;
518 u16 conn_latency;
519 u16 supervision_timeout;
520
521 enum {
522 HCI_AUTO_CONN_DISABLED,
523 HCI_AUTO_CONN_REPORT,
524 HCI_AUTO_CONN_DIRECT,
525 HCI_AUTO_CONN_ALWAYS,
526 HCI_AUTO_CONN_LINK_LOSS,
527 HCI_AUTO_CONN_EXPLICIT,
528 } auto_connect;
529
530 struct hci_conn *conn;
531 bool explicit_connect;
532};
533
534extern struct list_head hci_dev_list;
535extern struct list_head hci_cb_list;
536extern rwlock_t hci_dev_list_lock;
537extern struct mutex hci_cb_list_lock;
538
539#define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
540#define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
541#define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
542#define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
543#define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
544#define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
545#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
546
547#define hci_dev_clear_volatile_flags(hdev) \
548 do { \
549 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
550 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
551 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
552 } while (0)
553
554/* ----- HCI interface to upper protocols ----- */
555int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
556int l2cap_disconn_ind(struct hci_conn *hcon);
557void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
558
559#if IS_ENABLED(CONFIG_BT_BREDR)
560int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
561void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
562#else
563static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
564 __u8 *flags)
565{
566 return 0;
567}
568
569static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
570{
571}
572#endif
573
574/* ----- Inquiry cache ----- */
575#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
576#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
577
578static inline void discovery_init(struct hci_dev *hdev)
579{
580 hdev->discovery.state = DISCOVERY_STOPPED;
581 INIT_LIST_HEAD(&hdev->discovery.all);
582 INIT_LIST_HEAD(&hdev->discovery.unknown);
583 INIT_LIST_HEAD(&hdev->discovery.resolve);
584 hdev->discovery.report_invalid_rssi = true;
585 hdev->discovery.rssi = HCI_RSSI_INVALID;
586}
587
588static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
589{
590 hdev->discovery.result_filtering = false;
591 hdev->discovery.report_invalid_rssi = true;
592 hdev->discovery.rssi = HCI_RSSI_INVALID;
593 hdev->discovery.uuid_count = 0;
594 kfree(hdev->discovery.uuids);
595 hdev->discovery.uuids = NULL;
596 hdev->discovery.scan_start = 0;
597 hdev->discovery.scan_duration = 0;
598}
599
600bool hci_discovery_active(struct hci_dev *hdev);
601
602void hci_discovery_set_state(struct hci_dev *hdev, int state);
603
604static inline int inquiry_cache_empty(struct hci_dev *hdev)
605{
606 return list_empty(&hdev->discovery.all);
607}
608
609static inline long inquiry_cache_age(struct hci_dev *hdev)
610{
611 struct discovery_state *c = &hdev->discovery;
612 return jiffies - c->timestamp;
613}
614
615static inline long inquiry_entry_age(struct inquiry_entry *e)
616{
617 return jiffies - e->timestamp;
618}
619
620struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
621 bdaddr_t *bdaddr);
622struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
623 bdaddr_t *bdaddr);
624struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
625 bdaddr_t *bdaddr,
626 int state);
627void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
628 struct inquiry_entry *ie);
629u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
630 bool name_known);
631void hci_inquiry_cache_flush(struct hci_dev *hdev);
632
633/* ----- HCI Connections ----- */
634enum {
635 HCI_CONN_AUTH_PEND,
636 HCI_CONN_REAUTH_PEND,
637 HCI_CONN_ENCRYPT_PEND,
638 HCI_CONN_RSWITCH_PEND,
639 HCI_CONN_MODE_CHANGE_PEND,
640 HCI_CONN_SCO_SETUP_PEND,
641 HCI_CONN_MGMT_CONNECTED,
642 HCI_CONN_SSP_ENABLED,
643 HCI_CONN_SC_ENABLED,
644 HCI_CONN_AES_CCM,
645 HCI_CONN_POWER_SAVE,
646 HCI_CONN_FLUSH_KEY,
647 HCI_CONN_ENCRYPT,
648 HCI_CONN_AUTH,
649 HCI_CONN_SECURE,
650 HCI_CONN_FIPS,
651 HCI_CONN_STK_ENCRYPT,
652 HCI_CONN_AUTH_INITIATOR,
653 HCI_CONN_DROP,
654 HCI_CONN_PARAM_REMOVAL_PEND,
655 HCI_CONN_NEW_LINK_KEY,
656 HCI_CONN_SCANNING,
657};
658
659static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
660{
661 struct hci_dev *hdev = conn->hdev;
662 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
663 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
664}
665
666static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
667{
668 struct hci_dev *hdev = conn->hdev;
669 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
670 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
671}
672
673static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
674{
675 struct hci_conn_hash *h = &hdev->conn_hash;
676 list_add_rcu(&c->list, &h->list);
677 switch (c->type) {
678 case ACL_LINK:
679 h->acl_num++;
680 break;
681 case AMP_LINK:
682 h->amp_num++;
683 break;
684 case LE_LINK:
685 h->le_num++;
686 if (c->role == HCI_ROLE_SLAVE)
687 h->le_num_slave++;
688 break;
689 case SCO_LINK:
690 case ESCO_LINK:
691 h->sco_num++;
692 break;
693 }
694}
695
696static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
697{
698 struct hci_conn_hash *h = &hdev->conn_hash;
699
700 list_del_rcu(&c->list);
701 synchronize_rcu();
702
703 switch (c->type) {
704 case ACL_LINK:
705 h->acl_num--;
706 break;
707 case AMP_LINK:
708 h->amp_num--;
709 break;
710 case LE_LINK:
711 h->le_num--;
712 if (c->role == HCI_ROLE_SLAVE)
713 h->le_num_slave--;
714 break;
715 case SCO_LINK:
716 case ESCO_LINK:
717 h->sco_num--;
718 break;
719 }
720}
721
722static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
723{
724 struct hci_conn_hash *h = &hdev->conn_hash;
725 switch (type) {
726 case ACL_LINK:
727 return h->acl_num;
728 case AMP_LINK:
729 return h->amp_num;
730 case LE_LINK:
731 return h->le_num;
732 case SCO_LINK:
733 case ESCO_LINK:
734 return h->sco_num;
735 default:
736 return 0;
737 }
738}
739
740static inline unsigned int hci_conn_count(struct hci_dev *hdev)
741{
742 struct hci_conn_hash *c = &hdev->conn_hash;
743
744 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
745}
746
747static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
748{
749 struct hci_conn_hash *h = &hdev->conn_hash;
750 struct hci_conn *c;
751 __u8 type = INVALID_LINK;
752
753 rcu_read_lock();
754
755 list_for_each_entry_rcu(c, &h->list, list) {
756 if (c->handle == handle) {
757 type = c->type;
758 break;
759 }
760 }
761
762 rcu_read_unlock();
763
764 return type;
765}
766
767static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
768 __u16 handle)
769{
770 struct hci_conn_hash *h = &hdev->conn_hash;
771 struct hci_conn *c;
772
773 rcu_read_lock();
774
775 list_for_each_entry_rcu(c, &h->list, list) {
776 if (c->handle == handle) {
777 rcu_read_unlock();
778 return c;
779 }
780 }
781 rcu_read_unlock();
782
783 return NULL;
784}
785
786static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
787 __u8 type, bdaddr_t *ba)
788{
789 struct hci_conn_hash *h = &hdev->conn_hash;
790 struct hci_conn *c;
791
792 rcu_read_lock();
793
794 list_for_each_entry_rcu(c, &h->list, list) {
795 if (c->type == type && !bacmp(&c->dst, ba)) {
796 rcu_read_unlock();
797 return c;
798 }
799 }
800
801 rcu_read_unlock();
802
803 return NULL;
804}
805
806static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
807 bdaddr_t *ba,
808 __u8 ba_type)
809{
810 struct hci_conn_hash *h = &hdev->conn_hash;
811 struct hci_conn *c;
812
813 rcu_read_lock();
814
815 list_for_each_entry_rcu(c, &h->list, list) {
816 if (c->type != LE_LINK)
817 continue;
818
819 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
820 rcu_read_unlock();
821 return c;
822 }
823 }
824
825 rcu_read_unlock();
826
827 return NULL;
828}
829
830static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
831 __u8 type, __u16 state)
832{
833 struct hci_conn_hash *h = &hdev->conn_hash;
834 struct hci_conn *c;
835
836 rcu_read_lock();
837
838 list_for_each_entry_rcu(c, &h->list, list) {
839 if (c->type == type && c->state == state) {
840 rcu_read_unlock();
841 return c;
842 }
843 }
844
845 rcu_read_unlock();
846
847 return NULL;
848}
849
850static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
851{
852 struct hci_conn_hash *h = &hdev->conn_hash;
853 struct hci_conn *c;
854
855 rcu_read_lock();
856
857 list_for_each_entry_rcu(c, &h->list, list) {
858 if (c->type == LE_LINK && c->state == BT_CONNECT &&
859 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
860 rcu_read_unlock();
861 return c;
862 }
863 }
864
865 rcu_read_unlock();
866
867 return NULL;
868}
869
870int hci_disconnect(struct hci_conn *conn, __u8 reason);
871bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
872void hci_sco_setup(struct hci_conn *conn, __u8 status);
873
874struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
875 u8 role);
876int hci_conn_del(struct hci_conn *conn);
877void hci_conn_hash_flush(struct hci_dev *hdev);
878void hci_conn_check_pending(struct hci_dev *hdev);
879
880struct hci_chan *hci_chan_create(struct hci_conn *conn);
881void hci_chan_del(struct hci_chan *chan);
882void hci_chan_list_flush(struct hci_conn *conn);
883struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
884
885struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
886 u8 dst_type, u8 sec_level,
887 u16 conn_timeout);
888struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
889 u8 dst_type, u8 sec_level, u16 conn_timeout,
890 u8 role);
891struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
892 u8 sec_level, u8 auth_type);
893struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
894 __u16 setting);
895int hci_conn_check_link_mode(struct hci_conn *conn);
896int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
897int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
898 bool initiator);
899int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
900
901void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
902
903void hci_le_conn_failed(struct hci_conn *conn, u8 status);
904
905/*
906 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
907 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
908 * working or anything else. They just guarantee that the object is available
909 * and can be dereferenced. So you can use its locks, local variables and any
910 * other constant data.
911 * Before accessing runtime data, you _must_ lock the object and then check that
912 * it is still running. As soon as you release the locks, the connection might
913 * get dropped, though.
914 *
915 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
916 * how long the underlying connection is held. So every channel that runs on the
917 * hci_conn object calls this to prevent the connection from disappearing. As
918 * long as you hold a device, you must also guarantee that you have a valid
919 * reference to the device via hci_conn_get() (or the initial reference from
920 * hci_conn_add()).
921 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
922 * break because nobody cares for that. But this means, we cannot use
923 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
924 */
925
926static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
927{
928 get_device(&conn->dev);
929 return conn;
930}
931
932static inline void hci_conn_put(struct hci_conn *conn)
933{
934 put_device(&conn->dev);
935}
936
937static inline void hci_conn_hold(struct hci_conn *conn)
938{
939 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
940
941 atomic_inc(&conn->refcnt);
942 cancel_delayed_work(&conn->disc_work);
943}
944
945static inline void hci_conn_drop(struct hci_conn *conn)
946{
947 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
948
949 if (atomic_dec_and_test(&conn->refcnt)) {
950 unsigned long timeo;
951
952 switch (conn->type) {
953 case ACL_LINK:
954 case LE_LINK:
955 cancel_delayed_work(&conn->idle_work);
956 if (conn->state == BT_CONNECTED) {
957 timeo = conn->disc_timeout;
958 if (!conn->out)
959 timeo *= 2;
960 } else {
961 timeo = 0;
962 }
963 break;
964
965 case AMP_LINK:
966 timeo = conn->disc_timeout;
967 break;
968
969 default:
970 timeo = 0;
971 break;
972 }
973
974 cancel_delayed_work(&conn->disc_work);
975 queue_delayed_work(conn->hdev->workqueue,
976 &conn->disc_work, timeo);
977 }
978}
979
980/* ----- HCI Devices ----- */
981static inline void hci_dev_put(struct hci_dev *d)
982{
983 BT_DBG("%s orig refcnt %d", d->name,
984 atomic_read(&d->dev.kobj.kref.refcount));
985
986 put_device(&d->dev);
987}
988
989static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
990{
991 BT_DBG("%s orig refcnt %d", d->name,
992 atomic_read(&d->dev.kobj.kref.refcount));
993
994 get_device(&d->dev);
995 return d;
996}
997
998#define hci_dev_lock(d) mutex_lock(&d->lock)
999#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1000
1001#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1002#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1003
1004static inline void *hci_get_drvdata(struct hci_dev *hdev)
1005{
1006 return dev_get_drvdata(&hdev->dev);
1007}
1008
1009static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1010{
1011 dev_set_drvdata(&hdev->dev, data);
1012}
1013
1014struct hci_dev *hci_dev_get(int index);
1015struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
1016
1017struct hci_dev *hci_alloc_dev(void);
1018void hci_free_dev(struct hci_dev *hdev);
1019int hci_register_dev(struct hci_dev *hdev);
1020void hci_unregister_dev(struct hci_dev *hdev);
1021int hci_suspend_dev(struct hci_dev *hdev);
1022int hci_resume_dev(struct hci_dev *hdev);
1023int hci_reset_dev(struct hci_dev *hdev);
1024int hci_dev_open(__u16 dev);
1025int hci_dev_close(__u16 dev);
1026int hci_dev_do_close(struct hci_dev *hdev);
1027int hci_dev_reset(__u16 dev);
1028int hci_dev_reset_stat(__u16 dev);
1029int hci_dev_cmd(unsigned int cmd, void __user *arg);
1030int hci_get_dev_list(void __user *arg);
1031int hci_get_dev_info(void __user *arg);
1032int hci_get_conn_list(void __user *arg);
1033int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1034int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1035int hci_inquiry(void __user *arg);
1036
1037struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1038 bdaddr_t *bdaddr, u8 type);
1039int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1040int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1041void hci_bdaddr_list_clear(struct list_head *list);
1042
1043struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1044 bdaddr_t *addr, u8 addr_type);
1045struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1046 bdaddr_t *addr, u8 addr_type);
1047void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1048void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1049
1050struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1051 bdaddr_t *addr,
1052 u8 addr_type);
1053
1054void hci_uuids_clear(struct hci_dev *hdev);
1055
1056void hci_link_keys_clear(struct hci_dev *hdev);
1057struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1058struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1059 bdaddr_t *bdaddr, u8 *val, u8 type,
1060 u8 pin_len, bool *persistent);
1061struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1062 u8 addr_type, u8 type, u8 authenticated,
1063 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1064struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1065 u8 addr_type, u8 role);
1066int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1067void hci_smp_ltks_clear(struct hci_dev *hdev);
1068int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1069
1070struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1071struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1072 u8 addr_type);
1073struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1074 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1075void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1076void hci_smp_irks_clear(struct hci_dev *hdev);
1077
1078bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1079
1080void hci_remote_oob_data_clear(struct hci_dev *hdev);
1081struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1082 bdaddr_t *bdaddr, u8 bdaddr_type);
1083int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1084 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1085 u8 *hash256, u8 *rand256);
1086int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1087 u8 bdaddr_type);
1088
1089void hci_adv_instances_clear(struct hci_dev *hdev);
1090struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1091struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1092int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1093 u16 adv_data_len, u8 *adv_data,
1094 u16 scan_rsp_len, u8 *scan_rsp_data,
1095 u16 timeout, u16 duration);
1096int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1097
1098void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1099
1100int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1101int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1102
1103void hci_init_sysfs(struct hci_dev *hdev);
1104void hci_conn_init_sysfs(struct hci_conn *conn);
1105void hci_conn_add_sysfs(struct hci_conn *conn);
1106void hci_conn_del_sysfs(struct hci_conn *conn);
1107
1108#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1109
1110/* ----- LMP capabilities ----- */
1111#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1112#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1113#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1114#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1115#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1116#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1117#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1118#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1119#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1120#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1121#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1122#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1123#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1124#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1125#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1126#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1127#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1128#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1129#define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1130
1131/* ----- Extended LMP capabilities ----- */
1132#define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1133#define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1134#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1135#define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1136#define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1137#define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1138
1139/* ----- Host capabilities ----- */
1140#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1141#define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1142#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1143#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1144
1145#define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1146 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1147#define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1148 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1149
1150/* ----- HCI protocols ----- */
1151#define HCI_PROTO_DEFER 0x01
1152
1153static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1154 __u8 type, __u8 *flags)
1155{
1156 switch (type) {
1157 case ACL_LINK:
1158 return l2cap_connect_ind(hdev, bdaddr);
1159
1160 case SCO_LINK:
1161 case ESCO_LINK:
1162 return sco_connect_ind(hdev, bdaddr, flags);
1163
1164 default:
1165 BT_ERR("unknown link type %d", type);
1166 return -EINVAL;
1167 }
1168}
1169
1170static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1171{
1172 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1173 return HCI_ERROR_REMOTE_USER_TERM;
1174
1175 return l2cap_disconn_ind(conn);
1176}
1177
1178/* ----- HCI callbacks ----- */
1179struct hci_cb {
1180 struct list_head list;
1181
1182 char *name;
1183
1184 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1185 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1186 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1187 __u8 encrypt);
1188 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1189 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1190};
1191
1192static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1193{
1194 struct hci_cb *cb;
1195
1196 mutex_lock(&hci_cb_list_lock);
1197 list_for_each_entry(cb, &hci_cb_list, list) {
1198 if (cb->connect_cfm)
1199 cb->connect_cfm(conn, status);
1200 }
1201 mutex_unlock(&hci_cb_list_lock);
1202
1203 if (conn->connect_cfm_cb)
1204 conn->connect_cfm_cb(conn, status);
1205}
1206
1207static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1208{
1209 struct hci_cb *cb;
1210
1211 mutex_lock(&hci_cb_list_lock);
1212 list_for_each_entry(cb, &hci_cb_list, list) {
1213 if (cb->disconn_cfm)
1214 cb->disconn_cfm(conn, reason);
1215 }
1216 mutex_unlock(&hci_cb_list_lock);
1217
1218 if (conn->disconn_cfm_cb)
1219 conn->disconn_cfm_cb(conn, reason);
1220}
1221
1222static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1223{
1224 struct hci_cb *cb;
1225 __u8 encrypt;
1226
1227 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1228 return;
1229
1230 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1231
1232 mutex_lock(&hci_cb_list_lock);
1233 list_for_each_entry(cb, &hci_cb_list, list) {
1234 if (cb->security_cfm)
1235 cb->security_cfm(conn, status, encrypt);
1236 }
1237 mutex_unlock(&hci_cb_list_lock);
1238
1239 if (conn->security_cfm_cb)
1240 conn->security_cfm_cb(conn, status);
1241}
1242
1243static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1244 __u8 encrypt)
1245{
1246 struct hci_cb *cb;
1247
1248 if (conn->sec_level == BT_SECURITY_SDP)
1249 conn->sec_level = BT_SECURITY_LOW;
1250
1251 if (conn->pending_sec_level > conn->sec_level)
1252 conn->sec_level = conn->pending_sec_level;
1253
1254 mutex_lock(&hci_cb_list_lock);
1255 list_for_each_entry(cb, &hci_cb_list, list) {
1256 if (cb->security_cfm)
1257 cb->security_cfm(conn, status, encrypt);
1258 }
1259 mutex_unlock(&hci_cb_list_lock);
1260
1261 if (conn->security_cfm_cb)
1262 conn->security_cfm_cb(conn, status);
1263}
1264
1265static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1266{
1267 struct hci_cb *cb;
1268
1269 mutex_lock(&hci_cb_list_lock);
1270 list_for_each_entry(cb, &hci_cb_list, list) {
1271 if (cb->key_change_cfm)
1272 cb->key_change_cfm(conn, status);
1273 }
1274 mutex_unlock(&hci_cb_list_lock);
1275}
1276
1277static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1278 __u8 role)
1279{
1280 struct hci_cb *cb;
1281
1282 mutex_lock(&hci_cb_list_lock);
1283 list_for_each_entry(cb, &hci_cb_list, list) {
1284 if (cb->role_switch_cfm)
1285 cb->role_switch_cfm(conn, status, role);
1286 }
1287 mutex_unlock(&hci_cb_list_lock);
1288}
1289
1290static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1291 size_t *data_len)
1292{
1293 size_t parsed = 0;
1294
1295 if (eir_len < 2)
1296 return NULL;
1297
1298 while (parsed < eir_len - 1) {
1299 u8 field_len = eir[0];
1300
1301 if (field_len == 0)
1302 break;
1303
1304 parsed += field_len + 1;
1305
1306 if (parsed > eir_len)
1307 break;
1308
1309 if (eir[1] != type) {
1310 eir += field_len + 1;
1311 continue;
1312 }
1313
1314 /* Zero length data */
1315 if (field_len == 1)
1316 return NULL;
1317
1318 if (data_len)
1319 *data_len = field_len - 1;
1320
1321 return &eir[2];
1322 }
1323
1324 return NULL;
1325}
1326
1327static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1328{
1329 if (addr_type != ADDR_LE_DEV_RANDOM)
1330 return false;
1331
1332 if ((bdaddr->b[5] & 0xc0) == 0x40)
1333 return true;
1334
1335 return false;
1336}
1337
1338static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1339{
1340 if (addr_type == ADDR_LE_DEV_PUBLIC)
1341 return true;
1342
1343 /* Check for Random Static address type */
1344 if ((addr->b[5] & 0xc0) == 0xc0)
1345 return true;
1346
1347 return false;
1348}
1349
1350static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1351 bdaddr_t *bdaddr, u8 addr_type)
1352{
1353 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1354 return NULL;
1355
1356 return hci_find_irk_by_rpa(hdev, bdaddr);
1357}
1358
1359static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1360 u16 to_multiplier)
1361{
1362 u16 max_latency;
1363
1364 if (min > max || min < 6 || max > 3200)
1365 return -EINVAL;
1366
1367 if (to_multiplier < 10 || to_multiplier > 3200)
1368 return -EINVAL;
1369
1370 if (max >= to_multiplier * 8)
1371 return -EINVAL;
1372
1373 max_latency = (to_multiplier * 4 / max) - 1;
1374 if (latency > 499 || latency > max_latency)
1375 return -EINVAL;
1376
1377 return 0;
1378}
1379
1380int hci_register_cb(struct hci_cb *hcb);
1381int hci_unregister_cb(struct hci_cb *hcb);
1382
1383struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1384 const void *param, u32 timeout);
1385struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1386 const void *param, u8 event, u32 timeout);
1387
1388int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1389 const void *param);
1390void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1391void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1392
1393void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1394
1395struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1396 const void *param, u32 timeout);
1397
1398/* ----- HCI Sockets ----- */
1399void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1400void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1401 int flag, struct sock *skip_sk);
1402void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1403
1404void hci_sock_dev_event(struct hci_dev *hdev, int event);
1405
1406#define HCI_MGMT_VAR_LEN BIT(0)
1407#define HCI_MGMT_NO_HDEV BIT(1)
1408#define HCI_MGMT_UNTRUSTED BIT(2)
1409#define HCI_MGMT_UNCONFIGURED BIT(3)
1410
1411struct hci_mgmt_handler {
1412 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1413 u16 data_len);
1414 size_t data_len;
1415 unsigned long flags;
1416};
1417
1418struct hci_mgmt_chan {
1419 struct list_head list;
1420 unsigned short channel;
1421 size_t handler_count;
1422 const struct hci_mgmt_handler *handlers;
1423 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1424};
1425
1426int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1427void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1428
1429/* Management interface */
1430#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1431#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1432 BIT(BDADDR_LE_RANDOM))
1433#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1434 BIT(BDADDR_LE_PUBLIC) | \
1435 BIT(BDADDR_LE_RANDOM))
1436
1437/* These LE scan and inquiry parameters were chosen according to LE General
1438 * Discovery Procedure specification.
1439 */
1440#define DISCOV_LE_SCAN_WIN 0x12
1441#define DISCOV_LE_SCAN_INT 0x12
1442#define DISCOV_LE_TIMEOUT 10240 /* msec */
1443#define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1444#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1445#define DISCOV_BREDR_INQUIRY_LEN 0x08
1446#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1447
1448int mgmt_new_settings(struct hci_dev *hdev);
1449void mgmt_index_added(struct hci_dev *hdev);
1450void mgmt_index_removed(struct hci_dev *hdev);
1451void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1452void mgmt_power_on(struct hci_dev *hdev, int err);
1453void __mgmt_power_off(struct hci_dev *hdev);
1454void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1455 bool persistent);
1456void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1457 u32 flags, u8 *name, u8 name_len);
1458void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1459 u8 link_type, u8 addr_type, u8 reason,
1460 bool mgmt_connected);
1461void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1462 u8 link_type, u8 addr_type, u8 status);
1463void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1464 u8 addr_type, u8 status);
1465void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1466void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1467 u8 status);
1468void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1469 u8 status);
1470int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1471 u8 link_type, u8 addr_type, u32 value,
1472 u8 confirm_hint);
1473int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1474 u8 link_type, u8 addr_type, u8 status);
1475int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1476 u8 link_type, u8 addr_type, u8 status);
1477int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1478 u8 link_type, u8 addr_type);
1479int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1480 u8 link_type, u8 addr_type, u8 status);
1481int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1482 u8 link_type, u8 addr_type, u8 status);
1483int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1484 u8 link_type, u8 addr_type, u32 passkey,
1485 u8 entered);
1486void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1487void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1488void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1489void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1490 u8 status);
1491void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1492void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1493void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1494void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1495 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1496 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1497void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1498 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1499void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1500bool mgmt_powering_down(struct hci_dev *hdev);
1501void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1502void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1503void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1504 bool persistent);
1505void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1506 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1507 u16 max_interval, u16 latency, u16 timeout);
1508void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1509bool mgmt_get_connectable(struct hci_dev *hdev);
1510void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1511void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1512u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1513void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1514 u8 instance);
1515void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1516 u8 instance);
1517
1518u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1519 u16 to_multiplier);
1520void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1521 __u8 ltk[16], __u8 key_size);
1522
1523void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1524 u8 *bdaddr_type);
1525
1526#define SCO_AIRMODE_MASK 0x0003
1527#define SCO_AIRMODE_CVSD 0x0000
1528#define SCO_AIRMODE_TRANSP 0x0003
1529
1530#endif /* __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 <linux/interrupt.h>
29#include <net/bluetooth/hci.h>
30
31/* HCI priority */
32#define HCI_PRIO_MAX 7
33
34/* HCI Core structures */
35struct 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
46struct 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
59struct 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};
73
74struct hci_conn_hash {
75 struct list_head list;
76 unsigned int acl_num;
77 unsigned int sco_num;
78 unsigned int le_num;
79};
80
81struct bdaddr_list {
82 struct list_head list;
83 bdaddr_t bdaddr;
84};
85
86struct bt_uuid {
87 struct list_head list;
88 u8 uuid[16];
89 u8 svc_hint;
90};
91
92struct smp_ltk {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 bdaddr_type;
96 u8 authenticated;
97 u8 type;
98 u8 enc_size;
99 __le16 ediv;
100 u8 rand[8];
101 u8 val[16];
102} __packed;
103
104struct link_key {
105 struct list_head list;
106 bdaddr_t bdaddr;
107 u8 type;
108 u8 val[16];
109 u8 pin_len;
110};
111
112struct oob_data {
113 struct list_head list;
114 bdaddr_t bdaddr;
115 u8 hash[16];
116 u8 randomizer[16];
117};
118
119struct adv_entry {
120 struct list_head list;
121 bdaddr_t bdaddr;
122 u8 bdaddr_type;
123};
124
125struct le_scan_params {
126 u8 type;
127 u16 interval;
128 u16 window;
129 int timeout;
130};
131
132#define HCI_MAX_SHORT_NAME_LENGTH 10
133
134#define NUM_REASSEMBLY 4
135struct hci_dev {
136 struct list_head list;
137 struct mutex lock;
138
139 char name[8];
140 unsigned long flags;
141 __u16 id;
142 __u8 bus;
143 __u8 dev_type;
144 bdaddr_t bdaddr;
145 __u8 dev_name[HCI_MAX_NAME_LENGTH];
146 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
147 __u8 eir[HCI_MAX_EIR_LENGTH];
148 __u8 dev_class[3];
149 __u8 major_class;
150 __u8 minor_class;
151 __u8 features[8];
152 __u8 host_features[8];
153 __u8 commands[64];
154 __u8 hci_ver;
155 __u16 hci_rev;
156 __u8 lmp_ver;
157 __u16 manufacturer;
158 __u16 lmp_subver;
159 __u16 voice_setting;
160 __u8 io_capability;
161 __s8 inq_tx_power;
162 __u16 devid_source;
163 __u16 devid_vendor;
164 __u16 devid_product;
165 __u16 devid_version;
166
167 __u16 pkt_type;
168 __u16 esco_type;
169 __u16 link_policy;
170 __u16 link_mode;
171
172 __u32 idle_timeout;
173 __u16 sniff_min_interval;
174 __u16 sniff_max_interval;
175
176 __u8 amp_status;
177 __u32 amp_total_bw;
178 __u32 amp_max_bw;
179 __u32 amp_min_latency;
180 __u32 amp_max_pdu;
181 __u8 amp_type;
182 __u16 amp_pal_cap;
183 __u16 amp_assoc_size;
184 __u32 amp_max_flush_to;
185 __u32 amp_be_flush_to;
186
187 __u8 flow_ctl_mode;
188
189 unsigned int auto_accept_delay;
190
191 unsigned long quirks;
192
193 atomic_t cmd_cnt;
194 unsigned int acl_cnt;
195 unsigned int sco_cnt;
196 unsigned int le_cnt;
197
198 unsigned int acl_mtu;
199 unsigned int sco_mtu;
200 unsigned int le_mtu;
201 unsigned int acl_pkts;
202 unsigned int sco_pkts;
203 unsigned int le_pkts;
204
205 __u16 block_len;
206 __u16 block_mtu;
207 __u16 num_blocks;
208 __u16 block_cnt;
209
210 unsigned long acl_last_tx;
211 unsigned long sco_last_tx;
212 unsigned long le_last_tx;
213
214 struct workqueue_struct *workqueue;
215
216 struct work_struct power_on;
217 struct delayed_work power_off;
218
219 __u16 discov_timeout;
220 struct delayed_work discov_off;
221
222 struct delayed_work service_cache;
223
224 struct timer_list cmd_timer;
225
226 struct work_struct rx_work;
227 struct work_struct cmd_work;
228 struct work_struct tx_work;
229
230 struct sk_buff_head rx_q;
231 struct sk_buff_head raw_q;
232 struct sk_buff_head cmd_q;
233
234 struct sk_buff *sent_cmd;
235 struct sk_buff *reassembly[NUM_REASSEMBLY];
236
237 struct mutex req_lock;
238 wait_queue_head_t req_wait_q;
239 __u32 req_status;
240 __u32 req_result;
241
242 __u16 init_last_cmd;
243
244 struct list_head mgmt_pending;
245
246 struct discovery_state discovery;
247 struct hci_conn_hash conn_hash;
248 struct list_head blacklist;
249
250 struct list_head uuids;
251
252 struct list_head link_keys;
253
254 struct list_head long_term_keys;
255
256 struct list_head remote_oob_data;
257
258 struct hci_dev_stats stat;
259
260 struct sk_buff_head driver_init;
261
262 void *core_data;
263
264 atomic_t promisc;
265
266 struct dentry *debugfs;
267
268 struct device dev;
269
270 struct rfkill *rfkill;
271
272 unsigned long dev_flags;
273
274 struct delayed_work le_scan_disable;
275
276 struct work_struct le_scan;
277 struct le_scan_params le_scan_params;
278
279 int (*open)(struct hci_dev *hdev);
280 int (*close)(struct hci_dev *hdev);
281 int (*flush)(struct hci_dev *hdev);
282 int (*send)(struct sk_buff *skb);
283 void (*notify)(struct hci_dev *hdev, unsigned int evt);
284 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
285};
286
287struct hci_conn {
288 struct list_head list;
289
290 atomic_t refcnt;
291
292 bdaddr_t dst;
293 __u8 dst_type;
294 __u16 handle;
295 __u16 state;
296 __u8 mode;
297 __u8 type;
298 bool out;
299 __u8 attempt;
300 __u8 dev_class[3];
301 __u8 features[8];
302 __u16 interval;
303 __u16 pkt_type;
304 __u16 link_policy;
305 __u32 link_mode;
306 __u8 key_type;
307 __u8 auth_type;
308 __u8 sec_level;
309 __u8 pending_sec_level;
310 __u8 pin_length;
311 __u8 enc_key_size;
312 __u8 io_capability;
313 __u16 disc_timeout;
314 unsigned long flags;
315
316 __u8 remote_cap;
317 __u8 remote_auth;
318 bool flush_key;
319
320 unsigned int sent;
321
322 struct sk_buff_head data_q;
323 struct list_head chan_list;
324
325 struct delayed_work disc_work;
326 struct timer_list idle_timer;
327 struct timer_list auto_accept_timer;
328
329 struct device dev;
330 atomic_t devref;
331
332 struct hci_dev *hdev;
333 void *l2cap_data;
334 void *sco_data;
335 void *smp_conn;
336
337 struct hci_conn *link;
338
339 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
340 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
341 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
342};
343
344struct hci_chan {
345 struct list_head list;
346
347 struct hci_conn *conn;
348 struct sk_buff_head data_q;
349 unsigned int sent;
350};
351
352extern struct list_head hci_dev_list;
353extern struct list_head hci_cb_list;
354extern rwlock_t hci_dev_list_lock;
355extern rwlock_t hci_cb_list_lock;
356
357/* ----- HCI interface to upper protocols ----- */
358extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
359extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
360extern int l2cap_disconn_ind(struct hci_conn *hcon);
361extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
362extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
363extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
364
365extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
366extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
367extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
368extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
369
370/* ----- Inquiry cache ----- */
371#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
372#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
373
374static inline void discovery_init(struct hci_dev *hdev)
375{
376 hdev->discovery.state = DISCOVERY_STOPPED;
377 INIT_LIST_HEAD(&hdev->discovery.all);
378 INIT_LIST_HEAD(&hdev->discovery.unknown);
379 INIT_LIST_HEAD(&hdev->discovery.resolve);
380}
381
382bool hci_discovery_active(struct hci_dev *hdev);
383
384void hci_discovery_set_state(struct hci_dev *hdev, int state);
385
386static inline int inquiry_cache_empty(struct hci_dev *hdev)
387{
388 return list_empty(&hdev->discovery.all);
389}
390
391static inline long inquiry_cache_age(struct hci_dev *hdev)
392{
393 struct discovery_state *c = &hdev->discovery;
394 return jiffies - c->timestamp;
395}
396
397static inline long inquiry_entry_age(struct inquiry_entry *e)
398{
399 return jiffies - e->timestamp;
400}
401
402struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
403 bdaddr_t *bdaddr);
404struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
405 bdaddr_t *bdaddr);
406struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
407 bdaddr_t *bdaddr,
408 int state);
409void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
410 struct inquiry_entry *ie);
411bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
412 bool name_known, bool *ssp);
413
414/* ----- HCI Connections ----- */
415enum {
416 HCI_CONN_AUTH_PEND,
417 HCI_CONN_REAUTH_PEND,
418 HCI_CONN_ENCRYPT_PEND,
419 HCI_CONN_RSWITCH_PEND,
420 HCI_CONN_MODE_CHANGE_PEND,
421 HCI_CONN_SCO_SETUP_PEND,
422 HCI_CONN_LE_SMP_PEND,
423 HCI_CONN_MGMT_CONNECTED,
424 HCI_CONN_SSP_ENABLED,
425 HCI_CONN_POWER_SAVE,
426 HCI_CONN_REMOTE_OOB,
427};
428
429static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
430{
431 struct hci_dev *hdev = conn->hdev;
432 return (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
433 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
434}
435
436static inline void hci_conn_hash_init(struct hci_dev *hdev)
437{
438 struct hci_conn_hash *h = &hdev->conn_hash;
439 INIT_LIST_HEAD(&h->list);
440 h->acl_num = 0;
441 h->sco_num = 0;
442 h->le_num = 0;
443}
444
445static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
446{
447 struct hci_conn_hash *h = &hdev->conn_hash;
448 list_add_rcu(&c->list, &h->list);
449 switch (c->type) {
450 case ACL_LINK:
451 h->acl_num++;
452 break;
453 case LE_LINK:
454 h->le_num++;
455 break;
456 case SCO_LINK:
457 case ESCO_LINK:
458 h->sco_num++;
459 break;
460 }
461}
462
463static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
464{
465 struct hci_conn_hash *h = &hdev->conn_hash;
466
467 list_del_rcu(&c->list);
468 synchronize_rcu();
469
470 switch (c->type) {
471 case ACL_LINK:
472 h->acl_num--;
473 break;
474 case LE_LINK:
475 h->le_num--;
476 break;
477 case SCO_LINK:
478 case ESCO_LINK:
479 h->sco_num--;
480 break;
481 }
482}
483
484static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
485{
486 struct hci_conn_hash *h = &hdev->conn_hash;
487 switch (type) {
488 case ACL_LINK:
489 return h->acl_num;
490 case LE_LINK:
491 return h->le_num;
492 case SCO_LINK:
493 case ESCO_LINK:
494 return h->sco_num;
495 default:
496 return 0;
497 }
498}
499
500static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
501 __u16 handle)
502{
503 struct hci_conn_hash *h = &hdev->conn_hash;
504 struct hci_conn *c;
505
506 rcu_read_lock();
507
508 list_for_each_entry_rcu(c, &h->list, list) {
509 if (c->handle == handle) {
510 rcu_read_unlock();
511 return c;
512 }
513 }
514 rcu_read_unlock();
515
516 return NULL;
517}
518
519static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
520 __u8 type, bdaddr_t *ba)
521{
522 struct hci_conn_hash *h = &hdev->conn_hash;
523 struct hci_conn *c;
524
525 rcu_read_lock();
526
527 list_for_each_entry_rcu(c, &h->list, list) {
528 if (c->type == type && !bacmp(&c->dst, ba)) {
529 rcu_read_unlock();
530 return c;
531 }
532 }
533
534 rcu_read_unlock();
535
536 return NULL;
537}
538
539static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
540 __u8 type, __u16 state)
541{
542 struct hci_conn_hash *h = &hdev->conn_hash;
543 struct hci_conn *c;
544
545 rcu_read_lock();
546
547 list_for_each_entry_rcu(c, &h->list, list) {
548 if (c->type == type && c->state == state) {
549 rcu_read_unlock();
550 return c;
551 }
552 }
553
554 rcu_read_unlock();
555
556 return NULL;
557}
558
559void hci_acl_connect(struct hci_conn *conn);
560void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
561void hci_add_sco(struct hci_conn *conn, __u16 handle);
562void hci_setup_sync(struct hci_conn *conn, __u16 handle);
563void hci_sco_setup(struct hci_conn *conn, __u8 status);
564
565struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
566int hci_conn_del(struct hci_conn *conn);
567void hci_conn_hash_flush(struct hci_dev *hdev);
568void hci_conn_check_pending(struct hci_dev *hdev);
569
570struct hci_chan *hci_chan_create(struct hci_conn *conn);
571int hci_chan_del(struct hci_chan *chan);
572void hci_chan_list_flush(struct hci_conn *conn);
573
574struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
575 __u8 dst_type, __u8 sec_level, __u8 auth_type);
576int hci_conn_check_link_mode(struct hci_conn *conn);
577int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
578int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
579int hci_conn_change_link_key(struct hci_conn *conn);
580int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
581
582void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
583
584void hci_conn_hold_device(struct hci_conn *conn);
585void hci_conn_put_device(struct hci_conn *conn);
586
587static inline void hci_conn_hold(struct hci_conn *conn)
588{
589 atomic_inc(&conn->refcnt);
590 cancel_delayed_work(&conn->disc_work);
591}
592
593static inline void hci_conn_put(struct hci_conn *conn)
594{
595 if (atomic_dec_and_test(&conn->refcnt)) {
596 unsigned long timeo;
597 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
598 del_timer(&conn->idle_timer);
599 if (conn->state == BT_CONNECTED) {
600 timeo = msecs_to_jiffies(conn->disc_timeout);
601 if (!conn->out)
602 timeo *= 2;
603 } else {
604 timeo = msecs_to_jiffies(10);
605 }
606 } else {
607 timeo = msecs_to_jiffies(10);
608 }
609 cancel_delayed_work(&conn->disc_work);
610 queue_delayed_work(conn->hdev->workqueue,
611 &conn->disc_work, timeo);
612 }
613}
614
615/* ----- HCI Devices ----- */
616static inline void hci_dev_put(struct hci_dev *d)
617{
618 put_device(&d->dev);
619}
620
621static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
622{
623 get_device(&d->dev);
624 return d;
625}
626
627#define hci_dev_lock(d) mutex_lock(&d->lock)
628#define hci_dev_unlock(d) mutex_unlock(&d->lock)
629
630#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
631#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
632
633static inline void *hci_get_drvdata(struct hci_dev *hdev)
634{
635 return dev_get_drvdata(&hdev->dev);
636}
637
638static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
639{
640 dev_set_drvdata(&hdev->dev, data);
641}
642
643struct hci_dev *hci_dev_get(int index);
644struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
645
646struct hci_dev *hci_alloc_dev(void);
647void hci_free_dev(struct hci_dev *hdev);
648int hci_register_dev(struct hci_dev *hdev);
649void hci_unregister_dev(struct hci_dev *hdev);
650int hci_suspend_dev(struct hci_dev *hdev);
651int hci_resume_dev(struct hci_dev *hdev);
652int hci_dev_open(__u16 dev);
653int hci_dev_close(__u16 dev);
654int hci_dev_reset(__u16 dev);
655int hci_dev_reset_stat(__u16 dev);
656int hci_dev_cmd(unsigned int cmd, void __user *arg);
657int hci_get_dev_list(void __user *arg);
658int hci_get_dev_info(void __user *arg);
659int hci_get_conn_list(void __user *arg);
660int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
661int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
662int hci_inquiry(void __user *arg);
663
664struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
665int hci_blacklist_clear(struct hci_dev *hdev);
666int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
667int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
668
669int hci_uuids_clear(struct hci_dev *hdev);
670
671int hci_link_keys_clear(struct hci_dev *hdev);
672struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
673int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
674 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
675struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
676int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
677 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
678 __le16 ediv, u8 rand[8]);
679struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
680 u8 addr_type);
681int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
682int hci_smp_ltks_clear(struct hci_dev *hdev);
683int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
684
685int hci_remote_oob_data_clear(struct hci_dev *hdev);
686struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
687 bdaddr_t *bdaddr);
688int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
689 u8 *randomizer);
690int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
691
692void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
693
694int hci_recv_frame(struct sk_buff *skb);
695int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
696int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
697
698void hci_init_sysfs(struct hci_dev *hdev);
699int hci_add_sysfs(struct hci_dev *hdev);
700void hci_del_sysfs(struct hci_dev *hdev);
701void hci_conn_init_sysfs(struct hci_conn *conn);
702void hci_conn_add_sysfs(struct hci_conn *conn);
703void hci_conn_del_sysfs(struct hci_conn *conn);
704
705#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
706
707/* ----- LMP capabilities ----- */
708#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
709#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
710#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
711#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
712#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
713#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
714#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
715#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
716#define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
717
718/* ----- Extended LMP capabilities ----- */
719#define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
720
721/* ----- HCI protocols ----- */
722static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
723 __u8 type)
724{
725 switch (type) {
726 case ACL_LINK:
727 return l2cap_connect_ind(hdev, bdaddr);
728
729 case SCO_LINK:
730 case ESCO_LINK:
731 return sco_connect_ind(hdev, bdaddr);
732
733 default:
734 BT_ERR("unknown link type %d", type);
735 return -EINVAL;
736 }
737}
738
739static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
740{
741 switch (conn->type) {
742 case ACL_LINK:
743 case LE_LINK:
744 l2cap_connect_cfm(conn, status);
745 break;
746
747 case SCO_LINK:
748 case ESCO_LINK:
749 sco_connect_cfm(conn, status);
750 break;
751
752 default:
753 BT_ERR("unknown link type %d", conn->type);
754 break;
755 }
756
757 if (conn->connect_cfm_cb)
758 conn->connect_cfm_cb(conn, status);
759}
760
761static inline int hci_proto_disconn_ind(struct hci_conn *conn)
762{
763 if (conn->type != ACL_LINK && conn->type != LE_LINK)
764 return HCI_ERROR_REMOTE_USER_TERM;
765
766 return l2cap_disconn_ind(conn);
767}
768
769static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
770{
771 switch (conn->type) {
772 case ACL_LINK:
773 case LE_LINK:
774 l2cap_disconn_cfm(conn, reason);
775 break;
776
777 case SCO_LINK:
778 case ESCO_LINK:
779 sco_disconn_cfm(conn, reason);
780 break;
781
782 default:
783 BT_ERR("unknown link type %d", conn->type);
784 break;
785 }
786
787 if (conn->disconn_cfm_cb)
788 conn->disconn_cfm_cb(conn, reason);
789}
790
791static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
792{
793 __u8 encrypt;
794
795 if (conn->type != ACL_LINK && conn->type != LE_LINK)
796 return;
797
798 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
799 return;
800
801 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
802 l2cap_security_cfm(conn, status, encrypt);
803
804 if (conn->security_cfm_cb)
805 conn->security_cfm_cb(conn, status);
806}
807
808static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
809 __u8 encrypt)
810{
811 if (conn->type != ACL_LINK && conn->type != LE_LINK)
812 return;
813
814 l2cap_security_cfm(conn, status, encrypt);
815
816 if (conn->security_cfm_cb)
817 conn->security_cfm_cb(conn, status);
818}
819
820/* ----- HCI callbacks ----- */
821struct hci_cb {
822 struct list_head list;
823
824 char *name;
825
826 void (*security_cfm) (struct hci_conn *conn, __u8 status,
827 __u8 encrypt);
828 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
829 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
830};
831
832static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
833{
834 struct list_head *p;
835 __u8 encrypt;
836
837 hci_proto_auth_cfm(conn, status);
838
839 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
840 return;
841
842 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
843
844 read_lock(&hci_cb_list_lock);
845 list_for_each(p, &hci_cb_list) {
846 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
847 if (cb->security_cfm)
848 cb->security_cfm(conn, status, encrypt);
849 }
850 read_unlock(&hci_cb_list_lock);
851}
852
853static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
854 __u8 encrypt)
855{
856 struct list_head *p;
857
858 if (conn->sec_level == BT_SECURITY_SDP)
859 conn->sec_level = BT_SECURITY_LOW;
860
861 if (conn->pending_sec_level > conn->sec_level)
862 conn->sec_level = conn->pending_sec_level;
863
864 hci_proto_encrypt_cfm(conn, status, encrypt);
865
866 read_lock(&hci_cb_list_lock);
867 list_for_each(p, &hci_cb_list) {
868 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
869 if (cb->security_cfm)
870 cb->security_cfm(conn, status, encrypt);
871 }
872 read_unlock(&hci_cb_list_lock);
873}
874
875static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
876{
877 struct list_head *p;
878
879 read_lock(&hci_cb_list_lock);
880 list_for_each(p, &hci_cb_list) {
881 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
882 if (cb->key_change_cfm)
883 cb->key_change_cfm(conn, status);
884 }
885 read_unlock(&hci_cb_list_lock);
886}
887
888static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
889 __u8 role)
890{
891 struct list_head *p;
892
893 read_lock(&hci_cb_list_lock);
894 list_for_each(p, &hci_cb_list) {
895 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
896 if (cb->role_switch_cfm)
897 cb->role_switch_cfm(conn, status, role);
898 }
899 read_unlock(&hci_cb_list_lock);
900}
901
902static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
903{
904 size_t parsed = 0;
905
906 if (data_len < 2)
907 return false;
908
909 while (parsed < data_len - 1) {
910 u8 field_len = data[0];
911
912 if (field_len == 0)
913 break;
914
915 parsed += field_len + 1;
916
917 if (parsed > data_len)
918 break;
919
920 if (data[1] == type)
921 return true;
922
923 data += field_len + 1;
924 }
925
926 return false;
927}
928
929static inline size_t eir_get_length(u8 *eir, size_t eir_len)
930{
931 size_t parsed = 0;
932
933 while (parsed < eir_len) {
934 u8 field_len = eir[0];
935
936 if (field_len == 0)
937 return parsed;
938
939 parsed += field_len + 1;
940 eir += field_len + 1;
941 }
942
943 return eir_len;
944}
945
946static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
947 u8 data_len)
948{
949 eir[eir_len++] = sizeof(type) + data_len;
950 eir[eir_len++] = type;
951 memcpy(&eir[eir_len], data, data_len);
952 eir_len += data_len;
953
954 return eir_len;
955}
956
957int hci_register_cb(struct hci_cb *hcb);
958int hci_unregister_cb(struct hci_cb *hcb);
959
960int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
961void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
962void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
963
964void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
965
966/* ----- HCI Sockets ----- */
967void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
968void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
969void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
970
971void hci_sock_dev_event(struct hci_dev *hdev, int event);
972
973/* Management interface */
974#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
975#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
976 BIT(BDADDR_LE_RANDOM))
977#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
978 BIT(BDADDR_LE_PUBLIC) | \
979 BIT(BDADDR_LE_RANDOM))
980
981int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
982int mgmt_index_added(struct hci_dev *hdev);
983int mgmt_index_removed(struct hci_dev *hdev);
984int mgmt_powered(struct hci_dev *hdev, u8 powered);
985int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
986int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
987int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
988int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
989 bool persistent);
990int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
991 u8 addr_type, u32 flags, u8 *name, u8 name_len,
992 u8 *dev_class);
993int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
994 u8 link_type, u8 addr_type);
995int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
996 u8 link_type, u8 addr_type, u8 status);
997int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
998 u8 addr_type, u8 status);
999int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1000int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1001 u8 status);
1002int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1003 u8 status);
1004int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1005 u8 link_type, u8 addr_type, __le32 value,
1006 u8 confirm_hint);
1007int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1008 u8 link_type, u8 addr_type, u8 status);
1009int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1010 u8 link_type, u8 addr_type, u8 status);
1011int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1012 u8 link_type, u8 addr_type);
1013int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1014 u8 link_type, u8 addr_type, u8 status);
1015int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1016 u8 link_type, u8 addr_type, u8 status);
1017int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1018 u8 addr_type, u8 status);
1019int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1020int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1021int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1022 u8 status);
1023int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1024int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1025 u8 *randomizer, u8 status);
1026int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1027int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1028 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1029 u8 ssp, u8 *eir, u16 eir_len);
1030int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1031 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1032int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1033int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1034int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1035int mgmt_interleaved_discovery(struct hci_dev *hdev);
1036int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1037int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1038
1039int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1040
1041/* HCI info for socket */
1042#define hci_pi(sk) ((struct hci_pinfo *) sk)
1043
1044struct hci_pinfo {
1045 struct bt_sock bt;
1046 struct hci_dev *hdev;
1047 struct hci_filter filter;
1048 __u32 cmsg_mask;
1049 unsigned short channel;
1050};
1051
1052/* HCI security filter */
1053#define HCI_SFLT_MAX_OGF 5
1054
1055struct hci_sec_filter {
1056 __u32 type_mask;
1057 __u32 event_mask[2];
1058 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1059};
1060
1061/* ----- HCI requests ----- */
1062#define HCI_REQ_DONE 0
1063#define HCI_REQ_PEND 1
1064#define HCI_REQ_CANCELED 2
1065
1066#define hci_req_lock(d) mutex_lock(&d->req_lock)
1067#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1068
1069void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1070
1071void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1072 u16 latency, u16 to_multiplier);
1073void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1074 __u8 ltk[16]);
1075int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1076int hci_cancel_inquiry(struct hci_dev *hdev);
1077int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1078 int timeout);
1079int hci_cancel_le_scan(struct hci_dev *hdev);
1080
1081u8 bdaddr_to_le(u8 bdaddr_type);
1082
1083#endif /* __HCI_CORE_H */