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/idr.h>
29 #include <linux/leds.h>
30 #include <linux/rculist.h>
31
32 #include <net/bluetooth/hci.h>
33 #include <net/bluetooth/hci_sock.h>
34
35 /* HCI priority */
36 #define HCI_PRIO_MAX 7
37
38 /* HCI maximum id value */
39 #define HCI_MAX_ID 10000
40
41 /* HCI Core structures */
42 struct inquiry_data {
43 bdaddr_t bdaddr;
44 __u8 pscan_rep_mode;
45 __u8 pscan_period_mode;
46 __u8 pscan_mode;
47 __u8 dev_class[3];
48 __le16 clock_offset;
49 __s8 rssi;
50 __u8 ssp_mode;
51 };
52
53 struct inquiry_entry {
54 struct list_head all; /* inq_cache.all */
55 struct list_head list; /* unknown or resolve */
56 enum {
57 NAME_NOT_KNOWN,
58 NAME_NEEDED,
59 NAME_PENDING,
60 NAME_KNOWN,
61 } name_state;
62 __u32 timestamp;
63 struct inquiry_data data;
64 };
65
66 struct discovery_state {
67 int type;
68 enum {
69 DISCOVERY_STOPPED,
70 DISCOVERY_STARTING,
71 DISCOVERY_FINDING,
72 DISCOVERY_RESOLVING,
73 DISCOVERY_STOPPING,
74 } state;
75 struct list_head all; /* All devices found during inquiry */
76 struct list_head unknown; /* Name state not known */
77 struct list_head resolve; /* Name needs to be resolved */
78 __u32 timestamp;
79 bdaddr_t last_adv_addr;
80 u8 last_adv_addr_type;
81 s8 last_adv_rssi;
82 u32 last_adv_flags;
83 u8 last_adv_data[HCI_MAX_AD_LENGTH];
84 u8 last_adv_data_len;
85 bool report_invalid_rssi;
86 bool result_filtering;
87 bool limited;
88 s8 rssi;
89 u16 uuid_count;
90 u8 (*uuids)[16];
91 unsigned long scan_start;
92 unsigned long scan_duration;
93 };
94
95 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
96
97 enum suspend_tasks {
98 SUSPEND_PAUSE_DISCOVERY,
99 SUSPEND_UNPAUSE_DISCOVERY,
100
101 SUSPEND_PAUSE_ADVERTISING,
102 SUSPEND_UNPAUSE_ADVERTISING,
103
104 SUSPEND_SCAN_DISABLE,
105 SUSPEND_SCAN_ENABLE,
106 SUSPEND_DISCONNECTING,
107
108 SUSPEND_POWERING_DOWN,
109
110 SUSPEND_PREPARE_NOTIFIER,
111 __SUSPEND_NUM_TASKS
112 };
113
114 enum suspended_state {
115 BT_RUNNING = 0,
116 BT_SUSPEND_DISCONNECT,
117 BT_SUSPEND_CONFIGURE_WAKE,
118 };
119
120 struct hci_conn_hash {
121 struct list_head list;
122 unsigned int acl_num;
123 unsigned int amp_num;
124 unsigned int sco_num;
125 unsigned int le_num;
126 unsigned int le_num_slave;
127 };
128
129 struct bdaddr_list {
130 struct list_head list;
131 bdaddr_t bdaddr;
132 u8 bdaddr_type;
133 };
134
135 struct bdaddr_list_with_irk {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 bdaddr_type;
139 u8 peer_irk[16];
140 u8 local_irk[16];
141 };
142
143 struct bdaddr_list_with_flags {
144 struct list_head list;
145 bdaddr_t bdaddr;
146 u8 bdaddr_type;
147 u32 current_flags;
148 };
149
150 enum hci_conn_flags {
151 HCI_CONN_FLAG_REMOTE_WAKEUP,
152 HCI_CONN_FLAG_MAX
153 };
154
155 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
156
157 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
158 static_assert(HCI_CONN_FLAG_MAX < 32);
159
160 struct bt_uuid {
161 struct list_head list;
162 u8 uuid[16];
163 u8 size;
164 u8 svc_hint;
165 };
166
167 struct blocked_key {
168 struct list_head list;
169 struct rcu_head rcu;
170 u8 type;
171 u8 val[16];
172 };
173
174 struct smp_csrk {
175 bdaddr_t bdaddr;
176 u8 bdaddr_type;
177 u8 type;
178 u8 val[16];
179 };
180
181 struct smp_ltk {
182 struct list_head list;
183 struct rcu_head rcu;
184 bdaddr_t bdaddr;
185 u8 bdaddr_type;
186 u8 authenticated;
187 u8 type;
188 u8 enc_size;
189 __le16 ediv;
190 __le64 rand;
191 u8 val[16];
192 };
193
194 struct smp_irk {
195 struct list_head list;
196 struct rcu_head rcu;
197 bdaddr_t rpa;
198 bdaddr_t bdaddr;
199 u8 addr_type;
200 u8 val[16];
201 };
202
203 struct link_key {
204 struct list_head list;
205 struct rcu_head rcu;
206 bdaddr_t bdaddr;
207 u8 type;
208 u8 val[HCI_LINK_KEY_SIZE];
209 u8 pin_len;
210 };
211
212 struct oob_data {
213 struct list_head list;
214 bdaddr_t bdaddr;
215 u8 bdaddr_type;
216 u8 present;
217 u8 hash192[16];
218 u8 rand192[16];
219 u8 hash256[16];
220 u8 rand256[16];
221 };
222
223 struct adv_info {
224 struct list_head list;
225 bool pending;
226 __u8 instance;
227 __u32 flags;
228 __u16 timeout;
229 __u16 remaining_time;
230 __u16 duration;
231 __u16 adv_data_len;
232 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
233 __u16 scan_rsp_len;
234 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
235 __s8 tx_power;
236 bdaddr_t random_addr;
237 bool rpa_expired;
238 struct delayed_work rpa_expired_cb;
239 };
240
241 #define HCI_MAX_ADV_INSTANCES 5
242 #define HCI_DEFAULT_ADV_DURATION 2
243
244 struct adv_pattern {
245 struct list_head list;
246 __u8 ad_type;
247 __u8 offset;
248 __u8 length;
249 __u8 value[HCI_MAX_AD_LENGTH];
250 };
251
252 struct adv_monitor {
253 struct list_head patterns;
254 bool active;
255 __u16 handle;
256 };
257
258 #define HCI_MIN_ADV_MONITOR_HANDLE 1
259 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
260 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
261
262 #define HCI_MAX_SHORT_NAME_LENGTH 10
263
264 /* Min encryption key size to match with SMP */
265 #define HCI_MIN_ENC_KEY_SIZE 7
266
267 /* Default LE RPA expiry time, 15 minutes */
268 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
269
270 /* Default min/max age of connection information (1s/3s) */
271 #define DEFAULT_CONN_INFO_MIN_AGE 1000
272 #define DEFAULT_CONN_INFO_MAX_AGE 3000
273 /* Default authenticated payload timeout 30s */
274 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
275
276 struct amp_assoc {
277 __u16 len;
278 __u16 offset;
279 __u16 rem_len;
280 __u16 len_so_far;
281 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
282 };
283
284 #define HCI_MAX_PAGES 3
285
286 struct hci_dev {
287 struct list_head list;
288 struct mutex lock;
289
290 char name[8];
291 unsigned long flags;
292 __u16 id;
293 __u8 bus;
294 __u8 dev_type;
295 bdaddr_t bdaddr;
296 bdaddr_t setup_addr;
297 bdaddr_t public_addr;
298 bdaddr_t random_addr;
299 bdaddr_t static_addr;
300 __u8 adv_addr_type;
301 __u8 dev_name[HCI_MAX_NAME_LENGTH];
302 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
303 __u8 eir[HCI_MAX_EIR_LENGTH];
304 __u16 appearance;
305 __u8 dev_class[3];
306 __u8 major_class;
307 __u8 minor_class;
308 __u8 max_page;
309 __u8 features[HCI_MAX_PAGES][8];
310 __u8 le_features[8];
311 __u8 le_accept_list_size;
312 __u8 le_resolv_list_size;
313 __u8 le_num_of_adv_sets;
314 __u8 le_states[8];
315 __u8 commands[64];
316 __u8 hci_ver;
317 __u16 hci_rev;
318 __u8 lmp_ver;
319 __u16 manufacturer;
320 __u16 lmp_subver;
321 __u16 voice_setting;
322 __u8 num_iac;
323 __u8 stored_max_keys;
324 __u8 stored_num_keys;
325 __u8 io_capability;
326 __s8 inq_tx_power;
327 __u8 err_data_reporting;
328 __u16 page_scan_interval;
329 __u16 page_scan_window;
330 __u8 page_scan_type;
331 __u8 le_adv_channel_map;
332 __u16 le_adv_min_interval;
333 __u16 le_adv_max_interval;
334 __u8 le_scan_type;
335 __u16 le_scan_interval;
336 __u16 le_scan_window;
337 __u16 le_scan_int_suspend;
338 __u16 le_scan_window_suspend;
339 __u16 le_scan_int_discovery;
340 __u16 le_scan_window_discovery;
341 __u16 le_scan_int_adv_monitor;
342 __u16 le_scan_window_adv_monitor;
343 __u16 le_scan_int_connect;
344 __u16 le_scan_window_connect;
345 __u16 le_conn_min_interval;
346 __u16 le_conn_max_interval;
347 __u16 le_conn_latency;
348 __u16 le_supv_timeout;
349 __u16 le_def_tx_len;
350 __u16 le_def_tx_time;
351 __u16 le_max_tx_len;
352 __u16 le_max_tx_time;
353 __u16 le_max_rx_len;
354 __u16 le_max_rx_time;
355 __u8 le_max_key_size;
356 __u8 le_min_key_size;
357 __u16 discov_interleaved_timeout;
358 __u16 conn_info_min_age;
359 __u16 conn_info_max_age;
360 __u16 auth_payload_timeout;
361 __u8 min_enc_key_size;
362 __u8 max_enc_key_size;
363 __u8 pairing_opts;
364 __u8 ssp_debug_mode;
365 __u8 hw_error_code;
366 __u32 clock;
367 __u16 advmon_allowlist_duration;
368 __u16 advmon_no_filter_duration;
369
370 __u16 devid_source;
371 __u16 devid_vendor;
372 __u16 devid_product;
373 __u16 devid_version;
374
375 __u8 def_page_scan_type;
376 __u16 def_page_scan_int;
377 __u16 def_page_scan_window;
378 __u8 def_inq_scan_type;
379 __u16 def_inq_scan_int;
380 __u16 def_inq_scan_window;
381 __u16 def_br_lsto;
382 __u16 def_page_timeout;
383 __u16 def_multi_adv_rotation_duration;
384 __u16 def_le_autoconnect_timeout;
385
386 __u16 pkt_type;
387 __u16 esco_type;
388 __u16 link_policy;
389 __u16 link_mode;
390
391 __u32 idle_timeout;
392 __u16 sniff_min_interval;
393 __u16 sniff_max_interval;
394
395 __u8 amp_status;
396 __u32 amp_total_bw;
397 __u32 amp_max_bw;
398 __u32 amp_min_latency;
399 __u32 amp_max_pdu;
400 __u8 amp_type;
401 __u16 amp_pal_cap;
402 __u16 amp_assoc_size;
403 __u32 amp_max_flush_to;
404 __u32 amp_be_flush_to;
405
406 struct amp_assoc loc_assoc;
407
408 __u8 flow_ctl_mode;
409
410 unsigned int auto_accept_delay;
411
412 unsigned long quirks;
413
414 atomic_t cmd_cnt;
415 unsigned int acl_cnt;
416 unsigned int sco_cnt;
417 unsigned int le_cnt;
418
419 unsigned int acl_mtu;
420 unsigned int sco_mtu;
421 unsigned int le_mtu;
422 unsigned int acl_pkts;
423 unsigned int sco_pkts;
424 unsigned int le_pkts;
425
426 __u16 block_len;
427 __u16 block_mtu;
428 __u16 num_blocks;
429 __u16 block_cnt;
430
431 unsigned long acl_last_tx;
432 unsigned long sco_last_tx;
433 unsigned long le_last_tx;
434
435 __u8 le_tx_def_phys;
436 __u8 le_rx_def_phys;
437
438 struct workqueue_struct *workqueue;
439 struct workqueue_struct *req_workqueue;
440
441 struct work_struct power_on;
442 struct delayed_work power_off;
443 struct work_struct error_reset;
444
445 __u16 discov_timeout;
446 struct delayed_work discov_off;
447
448 struct delayed_work service_cache;
449
450 struct delayed_work cmd_timer;
451
452 struct work_struct rx_work;
453 struct work_struct cmd_work;
454 struct work_struct tx_work;
455
456 struct work_struct discov_update;
457 struct work_struct bg_scan_update;
458 struct work_struct scan_update;
459 struct work_struct connectable_update;
460 struct work_struct discoverable_update;
461 struct delayed_work le_scan_disable;
462 struct delayed_work le_scan_restart;
463
464 struct sk_buff_head rx_q;
465 struct sk_buff_head raw_q;
466 struct sk_buff_head cmd_q;
467
468 struct sk_buff *sent_cmd;
469
470 struct mutex req_lock;
471 wait_queue_head_t req_wait_q;
472 __u32 req_status;
473 __u32 req_result;
474 struct sk_buff *req_skb;
475
476 void *smp_data;
477 void *smp_bredr_data;
478
479 struct discovery_state discovery;
480
481 int discovery_old_state;
482 bool discovery_paused;
483 int advertising_old_state;
484 bool advertising_paused;
485
486 struct notifier_block suspend_notifier;
487 struct work_struct suspend_prepare;
488 enum suspended_state suspend_state_next;
489 enum suspended_state suspend_state;
490 bool scanning_paused;
491 bool suspended;
492 u8 wake_reason;
493 bdaddr_t wake_addr;
494 u8 wake_addr_type;
495
496 wait_queue_head_t suspend_wait_q;
497 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
498
499 struct hci_conn_hash conn_hash;
500
501 struct list_head mgmt_pending;
502 struct list_head reject_list;
503 struct list_head accept_list;
504 struct list_head uuids;
505 struct list_head link_keys;
506 struct list_head long_term_keys;
507 struct list_head identity_resolving_keys;
508 struct list_head remote_oob_data;
509 struct list_head le_accept_list;
510 struct list_head le_resolv_list;
511 struct list_head le_conn_params;
512 struct list_head pend_le_conns;
513 struct list_head pend_le_reports;
514 struct list_head blocked_keys;
515
516 struct hci_dev_stats stat;
517
518 atomic_t promisc;
519
520 const char *hw_info;
521 const char *fw_info;
522 struct dentry *debugfs;
523
524 struct device dev;
525
526 struct rfkill *rfkill;
527
528 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
529
530 __s8 adv_tx_power;
531 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
532 __u8 adv_data_len;
533 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
534 __u8 scan_rsp_data_len;
535
536 struct list_head adv_instances;
537 unsigned int adv_instance_cnt;
538 __u8 cur_adv_instance;
539 __u16 adv_instance_timeout;
540 struct delayed_work adv_instance_expire;
541
542 struct idr adv_monitors_idr;
543 unsigned int adv_monitors_cnt;
544
545 __u8 irk[16];
546 __u32 rpa_timeout;
547 struct delayed_work rpa_expired;
548 bdaddr_t rpa;
549
550 enum {
551 INTERLEAVE_SCAN_NONE,
552 INTERLEAVE_SCAN_NO_FILTER,
553 INTERLEAVE_SCAN_ALLOWLIST
554 } interleave_scan_state;
555
556 struct delayed_work interleave_scan;
557
558 #if IS_ENABLED(CONFIG_BT_LEDS)
559 struct led_trigger *power_led;
560 #endif
561
562 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
563 __u16 msft_opcode;
564 void *msft_data;
565 #endif
566
567 int (*open)(struct hci_dev *hdev);
568 int (*close)(struct hci_dev *hdev);
569 int (*flush)(struct hci_dev *hdev);
570 int (*setup)(struct hci_dev *hdev);
571 int (*shutdown)(struct hci_dev *hdev);
572 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
573 void (*notify)(struct hci_dev *hdev, unsigned int evt);
574 void (*hw_error)(struct hci_dev *hdev, u8 code);
575 int (*post_init)(struct hci_dev *hdev);
576 int (*set_diag)(struct hci_dev *hdev, bool enable);
577 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
578 void (*cmd_timeout)(struct hci_dev *hdev);
579 bool (*prevent_wake)(struct hci_dev *hdev);
580 };
581
582 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
583
584 enum conn_reasons {
585 CONN_REASON_PAIR_DEVICE,
586 CONN_REASON_L2CAP_CHAN,
587 CONN_REASON_SCO_CONNECT,
588 };
589
590 struct hci_conn {
591 struct list_head list;
592
593 atomic_t refcnt;
594
595 bdaddr_t dst;
596 __u8 dst_type;
597 bdaddr_t src;
598 __u8 src_type;
599 bdaddr_t init_addr;
600 __u8 init_addr_type;
601 bdaddr_t resp_addr;
602 __u8 resp_addr_type;
603 __u16 handle;
604 __u16 state;
605 __u8 mode;
606 __u8 type;
607 __u8 role;
608 bool out;
609 __u8 attempt;
610 __u8 dev_class[3];
611 __u8 features[HCI_MAX_PAGES][8];
612 __u16 pkt_type;
613 __u16 link_policy;
614 __u8 key_type;
615 __u8 auth_type;
616 __u8 sec_level;
617 __u8 pending_sec_level;
618 __u8 pin_length;
619 __u8 enc_key_size;
620 __u8 io_capability;
621 __u32 passkey_notify;
622 __u8 passkey_entered;
623 __u16 disc_timeout;
624 __u16 conn_timeout;
625 __u16 setting;
626 __u16 auth_payload_timeout;
627 __u16 le_conn_min_interval;
628 __u16 le_conn_max_interval;
629 __u16 le_conn_interval;
630 __u16 le_conn_latency;
631 __u16 le_supv_timeout;
632 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
633 __u8 le_adv_data_len;
634 __u8 le_tx_phy;
635 __u8 le_rx_phy;
636 __s8 rssi;
637 __s8 tx_power;
638 __s8 max_tx_power;
639 unsigned long flags;
640
641 enum conn_reasons conn_reason;
642
643 __u32 clock;
644 __u16 clock_accuracy;
645
646 unsigned long conn_info_timestamp;
647
648 __u8 remote_cap;
649 __u8 remote_auth;
650 __u8 remote_id;
651
652 unsigned int sent;
653
654 struct sk_buff_head data_q;
655 struct list_head chan_list;
656
657 struct delayed_work disc_work;
658 struct delayed_work auto_accept_work;
659 struct delayed_work idle_work;
660 struct delayed_work le_conn_timeout;
661 struct work_struct le_scan_cleanup;
662
663 struct device dev;
664 struct dentry *debugfs;
665
666 struct hci_dev *hdev;
667 void *l2cap_data;
668 void *sco_data;
669 struct amp_mgr *amp_mgr;
670
671 struct hci_conn *link;
672
673 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
674 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
675 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
676 };
677
678 struct hci_chan {
679 struct list_head list;
680 __u16 handle;
681 struct hci_conn *conn;
682 struct sk_buff_head data_q;
683 unsigned int sent;
684 __u8 state;
685 bool amp;
686 };
687
688 struct hci_conn_params {
689 struct list_head list;
690 struct list_head action;
691
692 bdaddr_t addr;
693 u8 addr_type;
694
695 u16 conn_min_interval;
696 u16 conn_max_interval;
697 u16 conn_latency;
698 u16 supervision_timeout;
699
700 enum {
701 HCI_AUTO_CONN_DISABLED,
702 HCI_AUTO_CONN_REPORT,
703 HCI_AUTO_CONN_DIRECT,
704 HCI_AUTO_CONN_ALWAYS,
705 HCI_AUTO_CONN_LINK_LOSS,
706 HCI_AUTO_CONN_EXPLICIT,
707 } auto_connect;
708
709 struct hci_conn *conn;
710 bool explicit_connect;
711 u32 current_flags;
712 };
713
714 extern struct list_head hci_dev_list;
715 extern struct list_head hci_cb_list;
716 extern rwlock_t hci_dev_list_lock;
717 extern struct mutex hci_cb_list_lock;
718
719 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
720 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
721 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
722 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
723 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
724 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
725 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
726
727 #define hci_dev_clear_volatile_flags(hdev) \
728 do { \
729 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
730 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
731 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
732 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
733 } while (0)
734
735 /* ----- HCI interface to upper protocols ----- */
736 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
737 int l2cap_disconn_ind(struct hci_conn *hcon);
738 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
739
740 #if IS_ENABLED(CONFIG_BT_BREDR)
741 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
742 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
743 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)744 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
745 __u8 *flags)
746 {
747 return 0;
748 }
749
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)750 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
751 {
752 }
753 #endif
754
755 /* ----- Inquiry cache ----- */
756 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
757 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
758
discovery_init(struct hci_dev * hdev)759 static inline void discovery_init(struct hci_dev *hdev)
760 {
761 hdev->discovery.state = DISCOVERY_STOPPED;
762 INIT_LIST_HEAD(&hdev->discovery.all);
763 INIT_LIST_HEAD(&hdev->discovery.unknown);
764 INIT_LIST_HEAD(&hdev->discovery.resolve);
765 hdev->discovery.report_invalid_rssi = true;
766 hdev->discovery.rssi = HCI_RSSI_INVALID;
767 }
768
hci_discovery_filter_clear(struct hci_dev * hdev)769 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
770 {
771 hdev->discovery.result_filtering = false;
772 hdev->discovery.report_invalid_rssi = true;
773 hdev->discovery.rssi = HCI_RSSI_INVALID;
774 hdev->discovery.uuid_count = 0;
775 kfree(hdev->discovery.uuids);
776 hdev->discovery.uuids = NULL;
777 hdev->discovery.scan_start = 0;
778 hdev->discovery.scan_duration = 0;
779 }
780
781 bool hci_discovery_active(struct hci_dev *hdev);
782
783 void hci_discovery_set_state(struct hci_dev *hdev, int state);
784
inquiry_cache_empty(struct hci_dev * hdev)785 static inline int inquiry_cache_empty(struct hci_dev *hdev)
786 {
787 return list_empty(&hdev->discovery.all);
788 }
789
inquiry_cache_age(struct hci_dev * hdev)790 static inline long inquiry_cache_age(struct hci_dev *hdev)
791 {
792 struct discovery_state *c = &hdev->discovery;
793 return jiffies - c->timestamp;
794 }
795
inquiry_entry_age(struct inquiry_entry * e)796 static inline long inquiry_entry_age(struct inquiry_entry *e)
797 {
798 return jiffies - e->timestamp;
799 }
800
801 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
802 bdaddr_t *bdaddr);
803 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
804 bdaddr_t *bdaddr);
805 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
806 bdaddr_t *bdaddr,
807 int state);
808 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
809 struct inquiry_entry *ie);
810 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
811 bool name_known);
812 void hci_inquiry_cache_flush(struct hci_dev *hdev);
813
814 /* ----- HCI Connections ----- */
815 enum {
816 HCI_CONN_AUTH_PEND,
817 HCI_CONN_REAUTH_PEND,
818 HCI_CONN_ENCRYPT_PEND,
819 HCI_CONN_RSWITCH_PEND,
820 HCI_CONN_MODE_CHANGE_PEND,
821 HCI_CONN_SCO_SETUP_PEND,
822 HCI_CONN_MGMT_CONNECTED,
823 HCI_CONN_SSP_ENABLED,
824 HCI_CONN_SC_ENABLED,
825 HCI_CONN_AES_CCM,
826 HCI_CONN_POWER_SAVE,
827 HCI_CONN_FLUSH_KEY,
828 HCI_CONN_ENCRYPT,
829 HCI_CONN_AUTH,
830 HCI_CONN_SECURE,
831 HCI_CONN_FIPS,
832 HCI_CONN_STK_ENCRYPT,
833 HCI_CONN_AUTH_INITIATOR,
834 HCI_CONN_DROP,
835 HCI_CONN_PARAM_REMOVAL_PEND,
836 HCI_CONN_NEW_LINK_KEY,
837 HCI_CONN_SCANNING,
838 HCI_CONN_AUTH_FAILURE,
839 };
840
hci_conn_ssp_enabled(struct hci_conn * conn)841 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
842 {
843 struct hci_dev *hdev = conn->hdev;
844 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
845 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
846 }
847
hci_conn_sc_enabled(struct hci_conn * conn)848 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
849 {
850 struct hci_dev *hdev = conn->hdev;
851 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
852 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
853 }
854
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)855 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
856 {
857 struct hci_conn_hash *h = &hdev->conn_hash;
858 list_add_rcu(&c->list, &h->list);
859 switch (c->type) {
860 case ACL_LINK:
861 h->acl_num++;
862 break;
863 case AMP_LINK:
864 h->amp_num++;
865 break;
866 case LE_LINK:
867 h->le_num++;
868 if (c->role == HCI_ROLE_SLAVE)
869 h->le_num_slave++;
870 break;
871 case SCO_LINK:
872 case ESCO_LINK:
873 h->sco_num++;
874 break;
875 }
876 }
877
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)878 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
879 {
880 struct hci_conn_hash *h = &hdev->conn_hash;
881
882 list_del_rcu(&c->list);
883 synchronize_rcu();
884
885 switch (c->type) {
886 case ACL_LINK:
887 h->acl_num--;
888 break;
889 case AMP_LINK:
890 h->amp_num--;
891 break;
892 case LE_LINK:
893 h->le_num--;
894 if (c->role == HCI_ROLE_SLAVE)
895 h->le_num_slave--;
896 break;
897 case SCO_LINK:
898 case ESCO_LINK:
899 h->sco_num--;
900 break;
901 }
902 }
903
hci_conn_num(struct hci_dev * hdev,__u8 type)904 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
905 {
906 struct hci_conn_hash *h = &hdev->conn_hash;
907 switch (type) {
908 case ACL_LINK:
909 return h->acl_num;
910 case AMP_LINK:
911 return h->amp_num;
912 case LE_LINK:
913 return h->le_num;
914 case SCO_LINK:
915 case ESCO_LINK:
916 return h->sco_num;
917 default:
918 return 0;
919 }
920 }
921
hci_conn_count(struct hci_dev * hdev)922 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
923 {
924 struct hci_conn_hash *c = &hdev->conn_hash;
925
926 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
927 }
928
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)929 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
930 {
931 struct hci_conn_hash *h = &hdev->conn_hash;
932 struct hci_conn *c;
933 __u8 type = INVALID_LINK;
934
935 rcu_read_lock();
936
937 list_for_each_entry_rcu(c, &h->list, list) {
938 if (c->handle == handle) {
939 type = c->type;
940 break;
941 }
942 }
943
944 rcu_read_unlock();
945
946 return type;
947 }
948
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)949 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
950 __u16 handle)
951 {
952 struct hci_conn_hash *h = &hdev->conn_hash;
953 struct hci_conn *c;
954
955 rcu_read_lock();
956
957 list_for_each_entry_rcu(c, &h->list, list) {
958 if (c->handle == handle) {
959 rcu_read_unlock();
960 return c;
961 }
962 }
963 rcu_read_unlock();
964
965 return NULL;
966 }
967
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)968 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
969 __u8 type, bdaddr_t *ba)
970 {
971 struct hci_conn_hash *h = &hdev->conn_hash;
972 struct hci_conn *c;
973
974 rcu_read_lock();
975
976 list_for_each_entry_rcu(c, &h->list, list) {
977 if (c->type == type && !bacmp(&c->dst, ba)) {
978 rcu_read_unlock();
979 return c;
980 }
981 }
982
983 rcu_read_unlock();
984
985 return NULL;
986 }
987
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)988 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
989 bdaddr_t *ba,
990 __u8 ba_type)
991 {
992 struct hci_conn_hash *h = &hdev->conn_hash;
993 struct hci_conn *c;
994
995 rcu_read_lock();
996
997 list_for_each_entry_rcu(c, &h->list, list) {
998 if (c->type != LE_LINK)
999 continue;
1000
1001 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1002 rcu_read_unlock();
1003 return c;
1004 }
1005 }
1006
1007 rcu_read_unlock();
1008
1009 return NULL;
1010 }
1011
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1012 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1013 __u8 type, __u16 state)
1014 {
1015 struct hci_conn_hash *h = &hdev->conn_hash;
1016 struct hci_conn *c;
1017
1018 rcu_read_lock();
1019
1020 list_for_each_entry_rcu(c, &h->list, list) {
1021 if (c->type == type && c->state == state) {
1022 rcu_read_unlock();
1023 return c;
1024 }
1025 }
1026
1027 rcu_read_unlock();
1028
1029 return NULL;
1030 }
1031
hci_lookup_le_connect(struct hci_dev * hdev)1032 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1033 {
1034 struct hci_conn_hash *h = &hdev->conn_hash;
1035 struct hci_conn *c;
1036
1037 rcu_read_lock();
1038
1039 list_for_each_entry_rcu(c, &h->list, list) {
1040 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1041 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1042 rcu_read_unlock();
1043 return c;
1044 }
1045 }
1046
1047 rcu_read_unlock();
1048
1049 return NULL;
1050 }
1051
1052 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1053 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1054 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1055
1056 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1057 u8 role);
1058 int hci_conn_del(struct hci_conn *conn);
1059 void hci_conn_hash_flush(struct hci_dev *hdev);
1060 void hci_conn_check_pending(struct hci_dev *hdev);
1061
1062 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1063 void hci_chan_del(struct hci_chan *chan);
1064 void hci_chan_list_flush(struct hci_conn *conn);
1065 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1066
1067 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1068 u8 dst_type, u8 sec_level,
1069 u16 conn_timeout,
1070 enum conn_reasons conn_reason);
1071 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1072 u8 dst_type, u8 sec_level, u16 conn_timeout,
1073 u8 role, bdaddr_t *direct_rpa);
1074 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1075 u8 sec_level, u8 auth_type,
1076 enum conn_reasons conn_reason);
1077 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1078 __u16 setting);
1079 int hci_conn_check_link_mode(struct hci_conn *conn);
1080 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1081 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1082 bool initiator);
1083 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1084
1085 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1086
1087 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1088
1089 /*
1090 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1091 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1092 * working or anything else. They just guarantee that the object is available
1093 * and can be dereferenced. So you can use its locks, local variables and any
1094 * other constant data.
1095 * Before accessing runtime data, you _must_ lock the object and then check that
1096 * it is still running. As soon as you release the locks, the connection might
1097 * get dropped, though.
1098 *
1099 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1100 * how long the underlying connection is held. So every channel that runs on the
1101 * hci_conn object calls this to prevent the connection from disappearing. As
1102 * long as you hold a device, you must also guarantee that you have a valid
1103 * reference to the device via hci_conn_get() (or the initial reference from
1104 * hci_conn_add()).
1105 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1106 * break because nobody cares for that. But this means, we cannot use
1107 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1108 */
1109
hci_conn_get(struct hci_conn * conn)1110 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1111 {
1112 get_device(&conn->dev);
1113 return conn;
1114 }
1115
hci_conn_put(struct hci_conn * conn)1116 static inline void hci_conn_put(struct hci_conn *conn)
1117 {
1118 put_device(&conn->dev);
1119 }
1120
hci_conn_hold(struct hci_conn * conn)1121 static inline void hci_conn_hold(struct hci_conn *conn)
1122 {
1123 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1124
1125 atomic_inc(&conn->refcnt);
1126 cancel_delayed_work(&conn->disc_work);
1127 }
1128
hci_conn_drop(struct hci_conn * conn)1129 static inline void hci_conn_drop(struct hci_conn *conn)
1130 {
1131 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1132
1133 if (atomic_dec_and_test(&conn->refcnt)) {
1134 unsigned long timeo;
1135
1136 switch (conn->type) {
1137 case ACL_LINK:
1138 case LE_LINK:
1139 cancel_delayed_work(&conn->idle_work);
1140 if (conn->state == BT_CONNECTED) {
1141 timeo = conn->disc_timeout;
1142 if (!conn->out)
1143 timeo *= 2;
1144 } else {
1145 timeo = 0;
1146 }
1147 break;
1148
1149 case AMP_LINK:
1150 timeo = conn->disc_timeout;
1151 break;
1152
1153 default:
1154 timeo = 0;
1155 break;
1156 }
1157
1158 cancel_delayed_work(&conn->disc_work);
1159 queue_delayed_work(conn->hdev->workqueue,
1160 &conn->disc_work, timeo);
1161 }
1162 }
1163
1164 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1165 static inline void hci_dev_put(struct hci_dev *d)
1166 {
1167 BT_DBG("%s orig refcnt %d", d->name,
1168 kref_read(&d->dev.kobj.kref));
1169
1170 put_device(&d->dev);
1171 }
1172
hci_dev_hold(struct hci_dev * d)1173 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1174 {
1175 BT_DBG("%s orig refcnt %d", d->name,
1176 kref_read(&d->dev.kobj.kref));
1177
1178 get_device(&d->dev);
1179 return d;
1180 }
1181
1182 #define hci_dev_lock(d) mutex_lock(&d->lock)
1183 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1184
1185 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1186 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1187
hci_get_drvdata(struct hci_dev * hdev)1188 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1189 {
1190 return dev_get_drvdata(&hdev->dev);
1191 }
1192
hci_set_drvdata(struct hci_dev * hdev,void * data)1193 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1194 {
1195 dev_set_drvdata(&hdev->dev, data);
1196 }
1197
1198 struct hci_dev *hci_dev_get(int index);
1199 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1200
1201 struct hci_dev *hci_alloc_dev(void);
1202 void hci_free_dev(struct hci_dev *hdev);
1203 int hci_register_dev(struct hci_dev *hdev);
1204 void hci_unregister_dev(struct hci_dev *hdev);
1205 void hci_cleanup_dev(struct hci_dev *hdev);
1206 int hci_suspend_dev(struct hci_dev *hdev);
1207 int hci_resume_dev(struct hci_dev *hdev);
1208 int hci_reset_dev(struct hci_dev *hdev);
1209 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1210 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1211 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1212 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1213
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1214 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1215 {
1216 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1217 hdev->msft_opcode = opcode;
1218 #endif
1219 }
1220
1221 int hci_dev_open(__u16 dev);
1222 int hci_dev_close(__u16 dev);
1223 int hci_dev_do_close(struct hci_dev *hdev);
1224 int hci_dev_reset(__u16 dev);
1225 int hci_dev_reset_stat(__u16 dev);
1226 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1227 int hci_get_dev_list(void __user *arg);
1228 int hci_get_dev_info(void __user *arg);
1229 int hci_get_conn_list(void __user *arg);
1230 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1231 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1232 int hci_inquiry(void __user *arg);
1233
1234 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1235 bdaddr_t *bdaddr, u8 type);
1236 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1237 struct list_head *list, bdaddr_t *bdaddr,
1238 u8 type);
1239 struct bdaddr_list_with_flags *
1240 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1241 u8 type);
1242 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1243 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1244 u8 type, u8 *peer_irk, u8 *local_irk);
1245 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1246 u8 type, u32 flags);
1247 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1248 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1249 u8 type);
1250 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1251 u8 type);
1252 void hci_bdaddr_list_clear(struct list_head *list);
1253
1254 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1255 bdaddr_t *addr, u8 addr_type);
1256 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1257 bdaddr_t *addr, u8 addr_type);
1258 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1259 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1260
1261 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1262 bdaddr_t *addr,
1263 u8 addr_type);
1264
1265 void hci_uuids_clear(struct hci_dev *hdev);
1266
1267 void hci_link_keys_clear(struct hci_dev *hdev);
1268 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1269 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1270 bdaddr_t *bdaddr, u8 *val, u8 type,
1271 u8 pin_len, bool *persistent);
1272 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1273 u8 addr_type, u8 type, u8 authenticated,
1274 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1275 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1276 u8 addr_type, u8 role);
1277 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1278 void hci_smp_ltks_clear(struct hci_dev *hdev);
1279 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1280
1281 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1282 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1283 u8 addr_type);
1284 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1285 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1286 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1287 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1288 void hci_blocked_keys_clear(struct hci_dev *hdev);
1289 void hci_smp_irks_clear(struct hci_dev *hdev);
1290
1291 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1292
1293 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1294 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1295 bdaddr_t *bdaddr, u8 bdaddr_type);
1296 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1297 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1298 u8 *hash256, u8 *rand256);
1299 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1300 u8 bdaddr_type);
1301
1302 void hci_adv_instances_clear(struct hci_dev *hdev);
1303 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1304 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1305 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1306 u16 adv_data_len, u8 *adv_data,
1307 u16 scan_rsp_len, u8 *scan_rsp_data,
1308 u16 timeout, u16 duration);
1309 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1310 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1311
1312 void hci_adv_monitors_clear(struct hci_dev *hdev);
1313 void hci_free_adv_monitor(struct adv_monitor *monitor);
1314 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1315 int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
1316 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1317
1318 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1319
1320 void hci_init_sysfs(struct hci_dev *hdev);
1321 void hci_conn_init_sysfs(struct hci_conn *conn);
1322 void hci_conn_add_sysfs(struct hci_conn *conn);
1323 void hci_conn_del_sysfs(struct hci_conn *conn);
1324
1325 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1326
1327 /* ----- LMP capabilities ----- */
1328 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1329 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1330 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1331 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1332 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1333 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1334 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1335 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1336 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1337 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1338 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1339 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1340 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1341 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1342 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1343 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1344 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1345 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1346 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1347 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1348 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1349 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1350 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1351
1352 /* ----- Extended LMP capabilities ----- */
1353 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1354 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1355 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1356 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1357 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1358 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1359
1360 /* ----- Host capabilities ----- */
1361 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1362 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1363 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1364 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1365
1366 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1367 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1368 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1369 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1370
1371 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1372 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1373
1374 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1375 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1376
1377 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1378 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1379
1380 /* Use LL Privacy based address resolution if supported */
1381 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1382
1383 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1384 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1385 ((dev)->commands[37] & 0x40))
1386 /* Use ext create connection if command is supported */
1387 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1388
1389 /* Extended advertising support */
1390 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1391
1392 /* ----- HCI protocols ----- */
1393 #define HCI_PROTO_DEFER 0x01
1394
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1395 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1396 __u8 type, __u8 *flags)
1397 {
1398 switch (type) {
1399 case ACL_LINK:
1400 return l2cap_connect_ind(hdev, bdaddr);
1401
1402 case SCO_LINK:
1403 case ESCO_LINK:
1404 return sco_connect_ind(hdev, bdaddr, flags);
1405
1406 default:
1407 BT_ERR("unknown link type %d", type);
1408 return -EINVAL;
1409 }
1410 }
1411
hci_proto_disconn_ind(struct hci_conn * conn)1412 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1413 {
1414 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1415 return HCI_ERROR_REMOTE_USER_TERM;
1416
1417 return l2cap_disconn_ind(conn);
1418 }
1419
1420 /* ----- HCI callbacks ----- */
1421 struct hci_cb {
1422 struct list_head list;
1423
1424 char *name;
1425
1426 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1427 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1428 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1429 __u8 encrypt);
1430 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1431 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1432 };
1433
hci_connect_cfm(struct hci_conn * conn,__u8 status)1434 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1435 {
1436 struct hci_cb *cb;
1437
1438 mutex_lock(&hci_cb_list_lock);
1439 list_for_each_entry(cb, &hci_cb_list, list) {
1440 if (cb->connect_cfm)
1441 cb->connect_cfm(conn, status);
1442 }
1443 mutex_unlock(&hci_cb_list_lock);
1444
1445 if (conn->connect_cfm_cb)
1446 conn->connect_cfm_cb(conn, status);
1447 }
1448
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1449 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1450 {
1451 struct hci_cb *cb;
1452
1453 mutex_lock(&hci_cb_list_lock);
1454 list_for_each_entry(cb, &hci_cb_list, list) {
1455 if (cb->disconn_cfm)
1456 cb->disconn_cfm(conn, reason);
1457 }
1458 mutex_unlock(&hci_cb_list_lock);
1459
1460 if (conn->disconn_cfm_cb)
1461 conn->disconn_cfm_cb(conn, reason);
1462 }
1463
hci_auth_cfm(struct hci_conn * conn,__u8 status)1464 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1465 {
1466 struct hci_cb *cb;
1467 __u8 encrypt;
1468
1469 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1470 return;
1471
1472 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1473
1474 mutex_lock(&hci_cb_list_lock);
1475 list_for_each_entry(cb, &hci_cb_list, list) {
1476 if (cb->security_cfm)
1477 cb->security_cfm(conn, status, encrypt);
1478 }
1479 mutex_unlock(&hci_cb_list_lock);
1480
1481 if (conn->security_cfm_cb)
1482 conn->security_cfm_cb(conn, status);
1483 }
1484
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)1485 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1486 {
1487 struct hci_cb *cb;
1488 __u8 encrypt;
1489
1490 if (conn->state == BT_CONFIG) {
1491 if (!status)
1492 conn->state = BT_CONNECTED;
1493
1494 hci_connect_cfm(conn, status);
1495 hci_conn_drop(conn);
1496 return;
1497 }
1498
1499 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1500 encrypt = 0x00;
1501 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1502 encrypt = 0x02;
1503 else
1504 encrypt = 0x01;
1505
1506 if (!status) {
1507 if (conn->sec_level == BT_SECURITY_SDP)
1508 conn->sec_level = BT_SECURITY_LOW;
1509
1510 if (conn->pending_sec_level > conn->sec_level)
1511 conn->sec_level = conn->pending_sec_level;
1512 }
1513
1514 mutex_lock(&hci_cb_list_lock);
1515 list_for_each_entry(cb, &hci_cb_list, list) {
1516 if (cb->security_cfm)
1517 cb->security_cfm(conn, status, encrypt);
1518 }
1519 mutex_unlock(&hci_cb_list_lock);
1520
1521 if (conn->security_cfm_cb)
1522 conn->security_cfm_cb(conn, status);
1523 }
1524
hci_key_change_cfm(struct hci_conn * conn,__u8 status)1525 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1526 {
1527 struct hci_cb *cb;
1528
1529 mutex_lock(&hci_cb_list_lock);
1530 list_for_each_entry(cb, &hci_cb_list, list) {
1531 if (cb->key_change_cfm)
1532 cb->key_change_cfm(conn, status);
1533 }
1534 mutex_unlock(&hci_cb_list_lock);
1535 }
1536
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)1537 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1538 __u8 role)
1539 {
1540 struct hci_cb *cb;
1541
1542 mutex_lock(&hci_cb_list_lock);
1543 list_for_each_entry(cb, &hci_cb_list, list) {
1544 if (cb->role_switch_cfm)
1545 cb->role_switch_cfm(conn, status, role);
1546 }
1547 mutex_unlock(&hci_cb_list_lock);
1548 }
1549
eir_get_data(u8 * eir,size_t eir_len,u8 type,size_t * data_len)1550 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1551 size_t *data_len)
1552 {
1553 size_t parsed = 0;
1554
1555 if (eir_len < 2)
1556 return NULL;
1557
1558 while (parsed < eir_len - 1) {
1559 u8 field_len = eir[0];
1560
1561 if (field_len == 0)
1562 break;
1563
1564 parsed += field_len + 1;
1565
1566 if (parsed > eir_len)
1567 break;
1568
1569 if (eir[1] != type) {
1570 eir += field_len + 1;
1571 continue;
1572 }
1573
1574 /* Zero length data */
1575 if (field_len == 1)
1576 return NULL;
1577
1578 if (data_len)
1579 *data_len = field_len - 1;
1580
1581 return &eir[2];
1582 }
1583
1584 return NULL;
1585 }
1586
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)1587 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1588 {
1589 if (addr_type != ADDR_LE_DEV_RANDOM)
1590 return false;
1591
1592 if ((bdaddr->b[5] & 0xc0) == 0x40)
1593 return true;
1594
1595 return false;
1596 }
1597
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)1598 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1599 {
1600 if (addr_type == ADDR_LE_DEV_PUBLIC)
1601 return true;
1602
1603 /* Check for Random Static address type */
1604 if ((addr->b[5] & 0xc0) == 0xc0)
1605 return true;
1606
1607 return false;
1608 }
1609
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)1610 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1611 bdaddr_t *bdaddr, u8 addr_type)
1612 {
1613 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1614 return NULL;
1615
1616 return hci_find_irk_by_rpa(hdev, bdaddr);
1617 }
1618
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)1619 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1620 u16 to_multiplier)
1621 {
1622 u16 max_latency;
1623
1624 if (min > max || min < 6 || max > 3200)
1625 return -EINVAL;
1626
1627 if (to_multiplier < 10 || to_multiplier > 3200)
1628 return -EINVAL;
1629
1630 if (max >= to_multiplier * 8)
1631 return -EINVAL;
1632
1633 max_latency = (to_multiplier * 4 / max) - 1;
1634 if (latency > 499 || latency > max_latency)
1635 return -EINVAL;
1636
1637 return 0;
1638 }
1639
1640 int hci_register_cb(struct hci_cb *hcb);
1641 int hci_unregister_cb(struct hci_cb *hcb);
1642
1643 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1644 const void *param, u32 timeout);
1645 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1646 const void *param, u8 event, u32 timeout);
1647 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1648 const void *param);
1649
1650 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1651 const void *param);
1652 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1653 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1654
1655 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1656
1657 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1658 const void *param, u32 timeout);
1659
1660 u32 hci_conn_get_phy(struct hci_conn *conn);
1661
1662 /* ----- HCI Sockets ----- */
1663 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1664 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1665 int flag, struct sock *skip_sk);
1666 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1667 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1668 void *data, u16 data_len, ktime_t tstamp,
1669 int flag, struct sock *skip_sk);
1670
1671 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1672
1673 #define HCI_MGMT_VAR_LEN BIT(0)
1674 #define HCI_MGMT_NO_HDEV BIT(1)
1675 #define HCI_MGMT_UNTRUSTED BIT(2)
1676 #define HCI_MGMT_UNCONFIGURED BIT(3)
1677 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
1678
1679 struct hci_mgmt_handler {
1680 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1681 u16 data_len);
1682 size_t data_len;
1683 unsigned long flags;
1684 };
1685
1686 struct hci_mgmt_chan {
1687 struct list_head list;
1688 unsigned short channel;
1689 size_t handler_count;
1690 const struct hci_mgmt_handler *handlers;
1691 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1692 };
1693
1694 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1695 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1696
1697 /* Management interface */
1698 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1699 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1700 BIT(BDADDR_LE_RANDOM))
1701 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1702 BIT(BDADDR_LE_PUBLIC) | \
1703 BIT(BDADDR_LE_RANDOM))
1704
1705 /* These LE scan and inquiry parameters were chosen according to LE General
1706 * Discovery Procedure specification.
1707 */
1708 #define DISCOV_LE_SCAN_WIN 0x12
1709 #define DISCOV_LE_SCAN_INT 0x12
1710 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1711 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1712 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1713 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1714 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1715 #define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
1716 #define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
1717
1718 void mgmt_fill_version_info(void *ver);
1719 int mgmt_new_settings(struct hci_dev *hdev);
1720 void mgmt_index_added(struct hci_dev *hdev);
1721 void mgmt_index_removed(struct hci_dev *hdev);
1722 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1723 void mgmt_power_on(struct hci_dev *hdev, int err);
1724 void __mgmt_power_off(struct hci_dev *hdev);
1725 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1726 bool persistent);
1727 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1728 u32 flags, u8 *name, u8 name_len);
1729 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1730 u8 link_type, u8 addr_type, u8 reason,
1731 bool mgmt_connected);
1732 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1733 u8 link_type, u8 addr_type, u8 status);
1734 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1735 u8 addr_type, u8 status);
1736 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1737 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1738 u8 status);
1739 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1740 u8 status);
1741 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1742 u8 link_type, u8 addr_type, u32 value,
1743 u8 confirm_hint);
1744 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1745 u8 link_type, u8 addr_type, u8 status);
1746 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1747 u8 link_type, u8 addr_type, u8 status);
1748 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1749 u8 link_type, u8 addr_type);
1750 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1751 u8 link_type, u8 addr_type, u8 status);
1752 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1753 u8 link_type, u8 addr_type, u8 status);
1754 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1755 u8 link_type, u8 addr_type, u32 passkey,
1756 u8 entered);
1757 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1758 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1759 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1760 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1761 u8 status);
1762 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1763 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1764 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1765 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1766 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1767 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1768 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1769 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1770 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1771 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1772 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1773 u8 addr_type);
1774 bool mgmt_powering_down(struct hci_dev *hdev);
1775 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1776 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1777 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1778 bool persistent);
1779 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1780 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1781 u16 max_interval, u16 latency, u16 timeout);
1782 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1783 bool mgmt_get_connectable(struct hci_dev *hdev);
1784 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1785 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1786 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1787 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1788 u8 instance);
1789 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1790 u8 instance);
1791 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1792
1793 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1794 u16 to_multiplier);
1795 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1796 __u8 ltk[16], __u8 key_size);
1797
1798 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1799 u8 *bdaddr_type);
1800
1801 #define SCO_AIRMODE_MASK 0x0003
1802 #define SCO_AIRMODE_CVSD 0x0000
1803 #define SCO_AIRMODE_TRANSP 0x0003
1804
1805 #endif /* __HCI_CORE_H */
1806