1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4 Copyright 2023 NXP
5
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24 */
25
26 #ifndef __HCI_CORE_H
27 #define __HCI_CORE_H
28
29 #include <linux/idr.h>
30 #include <linux/leds.h>
31 #include <linux/rculist.h>
32
33 #include <net/bluetooth/hci.h>
34 #include <net/bluetooth/hci_sync.h>
35 #include <net/bluetooth/hci_sock.h>
36 #include <net/bluetooth/coredump.h>
37
38 /* HCI priority */
39 #define HCI_PRIO_MAX 7
40
41 /* HCI maximum id value */
42 #define HCI_MAX_ID 10000
43
44 /* HCI Core structures */
45 struct inquiry_data {
46 bdaddr_t bdaddr;
47 __u8 pscan_rep_mode;
48 __u8 pscan_period_mode;
49 __u8 pscan_mode;
50 __u8 dev_class[3];
51 __le16 clock_offset;
52 __s8 rssi;
53 __u8 ssp_mode;
54 };
55
56 struct inquiry_entry {
57 struct list_head all; /* inq_cache.all */
58 struct list_head list; /* unknown or resolve */
59 enum {
60 NAME_NOT_KNOWN,
61 NAME_NEEDED,
62 NAME_PENDING,
63 NAME_KNOWN,
64 } name_state;
65 __u32 timestamp;
66 struct inquiry_data data;
67 };
68
69 struct discovery_state {
70 int type;
71 enum {
72 DISCOVERY_STOPPED,
73 DISCOVERY_STARTING,
74 DISCOVERY_FINDING,
75 DISCOVERY_RESOLVING,
76 DISCOVERY_STOPPING,
77 } state;
78 struct list_head all; /* All devices found during inquiry */
79 struct list_head unknown; /* Name state not known */
80 struct list_head resolve; /* Name needs to be resolved */
81 __u32 timestamp;
82 bdaddr_t last_adv_addr;
83 u8 last_adv_addr_type;
84 s8 last_adv_rssi;
85 u32 last_adv_flags;
86 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH];
87 u8 last_adv_data_len;
88 bool report_invalid_rssi;
89 bool result_filtering;
90 bool limited;
91 s8 rssi;
92 u16 uuid_count;
93 u8 (*uuids)[16];
94 unsigned long scan_start;
95 unsigned long scan_duration;
96 unsigned long name_resolve_timeout;
97 };
98
99 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
100
101 enum suspend_tasks {
102 SUSPEND_PAUSE_DISCOVERY,
103 SUSPEND_UNPAUSE_DISCOVERY,
104
105 SUSPEND_PAUSE_ADVERTISING,
106 SUSPEND_UNPAUSE_ADVERTISING,
107
108 SUSPEND_SCAN_DISABLE,
109 SUSPEND_SCAN_ENABLE,
110 SUSPEND_DISCONNECTING,
111
112 SUSPEND_POWERING_DOWN,
113
114 SUSPEND_PREPARE_NOTIFIER,
115
116 SUSPEND_SET_ADV_FILTER,
117 __SUSPEND_NUM_TASKS
118 };
119
120 enum suspended_state {
121 BT_RUNNING = 0,
122 BT_SUSPEND_DISCONNECT,
123 BT_SUSPEND_CONFIGURE_WAKE,
124 };
125
126 struct hci_conn_hash {
127 struct list_head list;
128 unsigned int acl_num;
129 unsigned int amp_num;
130 unsigned int sco_num;
131 unsigned int iso_num;
132 unsigned int le_num;
133 unsigned int le_num_peripheral;
134 };
135
136 struct bdaddr_list {
137 struct list_head list;
138 bdaddr_t bdaddr;
139 u8 bdaddr_type;
140 };
141
142 struct codec_list {
143 struct list_head list;
144 u8 id;
145 __u16 cid;
146 __u16 vid;
147 u8 transport;
148 u8 num_caps;
149 u32 len;
150 struct hci_codec_caps caps[];
151 };
152
153 struct bdaddr_list_with_irk {
154 struct list_head list;
155 bdaddr_t bdaddr;
156 u8 bdaddr_type;
157 u8 peer_irk[16];
158 u8 local_irk[16];
159 };
160
161 /* Bitmask of connection flags */
162 enum hci_conn_flags {
163 HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
164 HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
165 };
166 typedef u8 hci_conn_flags_t;
167
168 struct bdaddr_list_with_flags {
169 struct list_head list;
170 bdaddr_t bdaddr;
171 u8 bdaddr_type;
172 hci_conn_flags_t flags;
173 };
174
175 struct bt_uuid {
176 struct list_head list;
177 u8 uuid[16];
178 u8 size;
179 u8 svc_hint;
180 };
181
182 struct blocked_key {
183 struct list_head list;
184 struct rcu_head rcu;
185 u8 type;
186 u8 val[16];
187 };
188
189 struct smp_csrk {
190 bdaddr_t bdaddr;
191 u8 bdaddr_type;
192 u8 link_type;
193 u8 type;
194 u8 val[16];
195 };
196
197 struct smp_ltk {
198 struct list_head list;
199 struct rcu_head rcu;
200 bdaddr_t bdaddr;
201 u8 bdaddr_type;
202 u8 link_type;
203 u8 authenticated;
204 u8 type;
205 u8 enc_size;
206 __le16 ediv;
207 __le64 rand;
208 u8 val[16];
209 };
210
211 struct smp_irk {
212 struct list_head list;
213 struct rcu_head rcu;
214 bdaddr_t rpa;
215 bdaddr_t bdaddr;
216 u8 addr_type;
217 u8 link_type;
218 u8 val[16];
219 };
220
221 struct link_key {
222 struct list_head list;
223 struct rcu_head rcu;
224 bdaddr_t bdaddr;
225 u8 bdaddr_type;
226 u8 link_type;
227 u8 type;
228 u8 val[HCI_LINK_KEY_SIZE];
229 u8 pin_len;
230 };
231
232 struct oob_data {
233 struct list_head list;
234 bdaddr_t bdaddr;
235 u8 bdaddr_type;
236 u8 present;
237 u8 hash192[16];
238 u8 rand192[16];
239 u8 hash256[16];
240 u8 rand256[16];
241 };
242
243 struct adv_info {
244 struct list_head list;
245 bool enabled;
246 bool pending;
247 bool periodic;
248 __u8 mesh;
249 __u8 instance;
250 __u32 flags;
251 __u16 timeout;
252 __u16 remaining_time;
253 __u16 duration;
254 __u16 adv_data_len;
255 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
256 bool adv_data_changed;
257 __u16 scan_rsp_len;
258 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
259 bool scan_rsp_changed;
260 __u16 per_adv_data_len;
261 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
262 __s8 tx_power;
263 __u32 min_interval;
264 __u32 max_interval;
265 bdaddr_t random_addr;
266 bool rpa_expired;
267 struct delayed_work rpa_expired_cb;
268 };
269
270 #define HCI_MAX_ADV_INSTANCES 5
271 #define HCI_DEFAULT_ADV_DURATION 2
272
273 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
274
275 #define DATA_CMP(_d1, _l1, _d2, _l2) \
276 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
277
278 #define ADV_DATA_CMP(_adv, _data, _len) \
279 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
280
281 #define SCAN_RSP_CMP(_adv, _data, _len) \
282 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
283
284 struct monitored_device {
285 struct list_head list;
286
287 bdaddr_t bdaddr;
288 __u8 addr_type;
289 __u16 handle;
290 bool notified;
291 };
292
293 struct adv_pattern {
294 struct list_head list;
295 __u8 ad_type;
296 __u8 offset;
297 __u8 length;
298 __u8 value[HCI_MAX_EXT_AD_LENGTH];
299 };
300
301 struct adv_rssi_thresholds {
302 __s8 low_threshold;
303 __s8 high_threshold;
304 __u16 low_threshold_timeout;
305 __u16 high_threshold_timeout;
306 __u8 sampling_period;
307 };
308
309 struct adv_monitor {
310 struct list_head patterns;
311 struct adv_rssi_thresholds rssi;
312 __u16 handle;
313
314 enum {
315 ADV_MONITOR_STATE_NOT_REGISTERED,
316 ADV_MONITOR_STATE_REGISTERED,
317 ADV_MONITOR_STATE_OFFLOADED
318 } state;
319 };
320
321 #define HCI_MIN_ADV_MONITOR_HANDLE 1
322 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
323 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
324 #define HCI_ADV_MONITOR_EXT_NONE 1
325 #define HCI_ADV_MONITOR_EXT_MSFT 2
326
327 #define HCI_MAX_SHORT_NAME_LENGTH 10
328
329 #define HCI_CONN_HANDLE_MAX 0x0eff
330 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX)
331
332 /* Min encryption key size to match with SMP */
333 #define HCI_MIN_ENC_KEY_SIZE 7
334
335 /* Default LE RPA expiry time, 15 minutes */
336 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
337
338 /* Default min/max age of connection information (1s/3s) */
339 #define DEFAULT_CONN_INFO_MIN_AGE 1000
340 #define DEFAULT_CONN_INFO_MAX_AGE 3000
341 /* Default authenticated payload timeout 30s */
342 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
343
344 struct amp_assoc {
345 __u16 len;
346 __u16 offset;
347 __u16 rem_len;
348 __u16 len_so_far;
349 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
350 };
351
352 #define HCI_MAX_PAGES 3
353
354 struct hci_dev {
355 struct list_head list;
356 struct mutex lock;
357
358 struct ida unset_handle_ida;
359
360 const char *name;
361 unsigned long flags;
362 __u16 id;
363 __u8 bus;
364 __u8 dev_type;
365 bdaddr_t bdaddr;
366 bdaddr_t setup_addr;
367 bdaddr_t public_addr;
368 bdaddr_t random_addr;
369 bdaddr_t static_addr;
370 __u8 adv_addr_type;
371 __u8 dev_name[HCI_MAX_NAME_LENGTH];
372 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
373 __u8 eir[HCI_MAX_EIR_LENGTH];
374 __u16 appearance;
375 __u8 dev_class[3];
376 __u8 major_class;
377 __u8 minor_class;
378 __u8 max_page;
379 __u8 features[HCI_MAX_PAGES][8];
380 __u8 le_features[8];
381 __u8 le_accept_list_size;
382 __u8 le_resolv_list_size;
383 __u8 le_num_of_adv_sets;
384 __u8 le_states[8];
385 __u8 mesh_ad_types[16];
386 __u8 mesh_send_ref;
387 __u8 commands[64];
388 __u8 hci_ver;
389 __u16 hci_rev;
390 __u8 lmp_ver;
391 __u16 manufacturer;
392 __u16 lmp_subver;
393 __u16 voice_setting;
394 __u8 num_iac;
395 __u16 stored_max_keys;
396 __u16 stored_num_keys;
397 __u8 io_capability;
398 __s8 inq_tx_power;
399 __u8 err_data_reporting;
400 __u16 page_scan_interval;
401 __u16 page_scan_window;
402 __u8 page_scan_type;
403 __u8 le_adv_channel_map;
404 __u16 le_adv_min_interval;
405 __u16 le_adv_max_interval;
406 __u8 le_scan_type;
407 __u16 le_scan_interval;
408 __u16 le_scan_window;
409 __u16 le_scan_int_suspend;
410 __u16 le_scan_window_suspend;
411 __u16 le_scan_int_discovery;
412 __u16 le_scan_window_discovery;
413 __u16 le_scan_int_adv_monitor;
414 __u16 le_scan_window_adv_monitor;
415 __u16 le_scan_int_connect;
416 __u16 le_scan_window_connect;
417 __u16 le_conn_min_interval;
418 __u16 le_conn_max_interval;
419 __u16 le_conn_latency;
420 __u16 le_supv_timeout;
421 __u16 le_def_tx_len;
422 __u16 le_def_tx_time;
423 __u16 le_max_tx_len;
424 __u16 le_max_tx_time;
425 __u16 le_max_rx_len;
426 __u16 le_max_rx_time;
427 __u8 le_max_key_size;
428 __u8 le_min_key_size;
429 __u16 discov_interleaved_timeout;
430 __u16 conn_info_min_age;
431 __u16 conn_info_max_age;
432 __u16 auth_payload_timeout;
433 __u8 min_enc_key_size;
434 __u8 max_enc_key_size;
435 __u8 pairing_opts;
436 __u8 ssp_debug_mode;
437 __u8 hw_error_code;
438 __u32 clock;
439 __u16 advmon_allowlist_duration;
440 __u16 advmon_no_filter_duration;
441 __u8 enable_advmon_interleave_scan;
442
443 __u16 devid_source;
444 __u16 devid_vendor;
445 __u16 devid_product;
446 __u16 devid_version;
447
448 __u8 def_page_scan_type;
449 __u16 def_page_scan_int;
450 __u16 def_page_scan_window;
451 __u8 def_inq_scan_type;
452 __u16 def_inq_scan_int;
453 __u16 def_inq_scan_window;
454 __u16 def_br_lsto;
455 __u16 def_page_timeout;
456 __u16 def_multi_adv_rotation_duration;
457 __u16 def_le_autoconnect_timeout;
458 __s8 min_le_tx_power;
459 __s8 max_le_tx_power;
460
461 __u16 pkt_type;
462 __u16 esco_type;
463 __u16 link_policy;
464 __u16 link_mode;
465
466 __u32 idle_timeout;
467 __u16 sniff_min_interval;
468 __u16 sniff_max_interval;
469
470 __u8 amp_status;
471 __u32 amp_total_bw;
472 __u32 amp_max_bw;
473 __u32 amp_min_latency;
474 __u32 amp_max_pdu;
475 __u8 amp_type;
476 __u16 amp_pal_cap;
477 __u16 amp_assoc_size;
478 __u32 amp_max_flush_to;
479 __u32 amp_be_flush_to;
480
481 struct amp_assoc loc_assoc;
482
483 __u8 flow_ctl_mode;
484
485 unsigned int auto_accept_delay;
486
487 unsigned long quirks;
488
489 atomic_t cmd_cnt;
490 unsigned int acl_cnt;
491 unsigned int sco_cnt;
492 unsigned int le_cnt;
493 unsigned int iso_cnt;
494
495 unsigned int acl_mtu;
496 unsigned int sco_mtu;
497 unsigned int le_mtu;
498 unsigned int iso_mtu;
499 unsigned int acl_pkts;
500 unsigned int sco_pkts;
501 unsigned int le_pkts;
502 unsigned int iso_pkts;
503
504 __u16 block_len;
505 __u16 block_mtu;
506 __u16 num_blocks;
507 __u16 block_cnt;
508
509 unsigned long acl_last_tx;
510 unsigned long sco_last_tx;
511 unsigned long le_last_tx;
512
513 __u8 le_tx_def_phys;
514 __u8 le_rx_def_phys;
515
516 struct workqueue_struct *workqueue;
517 struct workqueue_struct *req_workqueue;
518
519 struct work_struct power_on;
520 struct delayed_work power_off;
521 struct work_struct error_reset;
522 struct work_struct cmd_sync_work;
523 struct list_head cmd_sync_work_list;
524 struct mutex cmd_sync_work_lock;
525 struct mutex unregister_lock;
526 struct work_struct cmd_sync_cancel_work;
527 struct work_struct reenable_adv_work;
528
529 __u16 discov_timeout;
530 struct delayed_work discov_off;
531
532 struct delayed_work service_cache;
533
534 struct delayed_work cmd_timer;
535 struct delayed_work ncmd_timer;
536
537 struct work_struct rx_work;
538 struct work_struct cmd_work;
539 struct work_struct tx_work;
540
541 struct delayed_work le_scan_disable;
542 struct delayed_work le_scan_restart;
543
544 struct sk_buff_head rx_q;
545 struct sk_buff_head raw_q;
546 struct sk_buff_head cmd_q;
547
548 struct sk_buff *sent_cmd;
549 struct sk_buff *recv_event;
550
551 struct mutex req_lock;
552 wait_queue_head_t req_wait_q;
553 __u32 req_status;
554 __u32 req_result;
555 struct sk_buff *req_skb;
556
557 void *smp_data;
558 void *smp_bredr_data;
559
560 struct discovery_state discovery;
561
562 int discovery_old_state;
563 bool discovery_paused;
564 int advertising_old_state;
565 bool advertising_paused;
566
567 struct notifier_block suspend_notifier;
568 enum suspended_state suspend_state_next;
569 enum suspended_state suspend_state;
570 bool scanning_paused;
571 bool suspended;
572 u8 wake_reason;
573 bdaddr_t wake_addr;
574 u8 wake_addr_type;
575
576 struct hci_conn_hash conn_hash;
577
578 struct list_head mesh_pending;
579 struct list_head mgmt_pending;
580 struct list_head reject_list;
581 struct list_head accept_list;
582 struct list_head uuids;
583 struct list_head link_keys;
584 struct list_head long_term_keys;
585 struct list_head identity_resolving_keys;
586 struct list_head remote_oob_data;
587 struct list_head le_accept_list;
588 struct list_head le_resolv_list;
589 struct list_head le_conn_params;
590 struct list_head pend_le_conns;
591 struct list_head pend_le_reports;
592 struct list_head blocked_keys;
593 struct list_head local_codecs;
594
595 struct hci_dev_stats stat;
596
597 atomic_t promisc;
598
599 const char *hw_info;
600 const char *fw_info;
601 struct dentry *debugfs;
602
603 struct hci_devcoredump dump;
604
605 struct device dev;
606
607 struct rfkill *rfkill;
608
609 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
610 hci_conn_flags_t conn_flags;
611
612 __s8 adv_tx_power;
613 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
614 __u8 adv_data_len;
615 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
616 __u8 scan_rsp_data_len;
617 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
618 __u8 per_adv_data_len;
619
620 struct list_head adv_instances;
621 unsigned int adv_instance_cnt;
622 __u8 cur_adv_instance;
623 __u16 adv_instance_timeout;
624 struct delayed_work adv_instance_expire;
625
626 struct idr adv_monitors_idr;
627 unsigned int adv_monitors_cnt;
628
629 __u8 irk[16];
630 __u32 rpa_timeout;
631 struct delayed_work rpa_expired;
632 bdaddr_t rpa;
633
634 struct delayed_work mesh_send_done;
635
636 enum {
637 INTERLEAVE_SCAN_NONE,
638 INTERLEAVE_SCAN_NO_FILTER,
639 INTERLEAVE_SCAN_ALLOWLIST
640 } interleave_scan_state;
641
642 struct delayed_work interleave_scan;
643
644 struct list_head monitored_devices;
645 bool advmon_pend_notify;
646
647 #if IS_ENABLED(CONFIG_BT_LEDS)
648 struct led_trigger *power_led;
649 #endif
650
651 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
652 __u16 msft_opcode;
653 void *msft_data;
654 bool msft_curve_validity;
655 #endif
656
657 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
658 bool aosp_capable;
659 bool aosp_quality_report;
660 #endif
661
662 int (*open)(struct hci_dev *hdev);
663 int (*close)(struct hci_dev *hdev);
664 int (*flush)(struct hci_dev *hdev);
665 int (*setup)(struct hci_dev *hdev);
666 int (*shutdown)(struct hci_dev *hdev);
667 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
668 void (*notify)(struct hci_dev *hdev, unsigned int evt);
669 void (*hw_error)(struct hci_dev *hdev, u8 code);
670 int (*post_init)(struct hci_dev *hdev);
671 int (*set_diag)(struct hci_dev *hdev, bool enable);
672 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
673 void (*cmd_timeout)(struct hci_dev *hdev);
674 void (*reset)(struct hci_dev *hdev);
675 bool (*wakeup)(struct hci_dev *hdev);
676 int (*set_quality_report)(struct hci_dev *hdev, bool enable);
677 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
678 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
679 struct bt_codec *codec, __u8 *vnd_len,
680 __u8 **vnd_data);
681 };
682
683 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
684
685 enum conn_reasons {
686 CONN_REASON_PAIR_DEVICE,
687 CONN_REASON_L2CAP_CHAN,
688 CONN_REASON_SCO_CONNECT,
689 CONN_REASON_ISO_CONNECT,
690 };
691
692 struct hci_conn {
693 struct list_head list;
694
695 atomic_t refcnt;
696
697 bdaddr_t dst;
698 __u8 dst_type;
699 bdaddr_t src;
700 __u8 src_type;
701 bdaddr_t init_addr;
702 __u8 init_addr_type;
703 bdaddr_t resp_addr;
704 __u8 resp_addr_type;
705 __u8 adv_instance;
706 __u16 handle;
707 __u16 sync_handle;
708 __u16 state;
709 __u8 mode;
710 __u8 type;
711 __u8 role;
712 bool out;
713 __u8 attempt;
714 __u8 dev_class[3];
715 __u8 features[HCI_MAX_PAGES][8];
716 __u16 pkt_type;
717 __u16 link_policy;
718 __u8 key_type;
719 __u8 auth_type;
720 __u8 sec_level;
721 __u8 pending_sec_level;
722 __u8 pin_length;
723 __u8 enc_key_size;
724 __u8 io_capability;
725 __u32 passkey_notify;
726 __u8 passkey_entered;
727 __u16 disc_timeout;
728 __u16 conn_timeout;
729 __u16 setting;
730 __u16 auth_payload_timeout;
731 __u16 le_conn_min_interval;
732 __u16 le_conn_max_interval;
733 __u16 le_conn_interval;
734 __u16 le_conn_latency;
735 __u16 le_supv_timeout;
736 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
737 __u8 le_adv_data_len;
738 __u8 le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
739 __u8 le_per_adv_data_len;
740 __u8 le_tx_phy;
741 __u8 le_rx_phy;
742 __s8 rssi;
743 __s8 tx_power;
744 __s8 max_tx_power;
745 struct bt_iso_qos iso_qos;
746 unsigned long flags;
747
748 enum conn_reasons conn_reason;
749 __u8 abort_reason;
750
751 __u32 clock;
752 __u16 clock_accuracy;
753
754 unsigned long conn_info_timestamp;
755
756 __u8 remote_cap;
757 __u8 remote_auth;
758 __u8 remote_id;
759
760 unsigned int sent;
761
762 struct sk_buff_head data_q;
763 struct list_head chan_list;
764
765 struct delayed_work disc_work;
766 struct delayed_work auto_accept_work;
767 struct delayed_work idle_work;
768 struct delayed_work le_conn_timeout;
769
770 struct device dev;
771 struct dentry *debugfs;
772
773 struct hci_dev *hdev;
774 void *l2cap_data;
775 void *sco_data;
776 void *iso_data;
777 struct amp_mgr *amp_mgr;
778
779 struct list_head link_list;
780 struct hci_conn *parent;
781 struct hci_link *link;
782
783 struct bt_codec codec;
784
785 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
786 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
787 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
788
789 void (*cleanup)(struct hci_conn *conn);
790 };
791
792 struct hci_link {
793 struct list_head list;
794 struct hci_conn *conn;
795 };
796
797 struct hci_chan {
798 struct list_head list;
799 __u16 handle;
800 struct hci_conn *conn;
801 struct sk_buff_head data_q;
802 unsigned int sent;
803 __u8 state;
804 bool amp;
805 };
806
807 struct hci_conn_params {
808 struct list_head list;
809 struct list_head action;
810
811 bdaddr_t addr;
812 u8 addr_type;
813
814 u16 conn_min_interval;
815 u16 conn_max_interval;
816 u16 conn_latency;
817 u16 supervision_timeout;
818
819 enum {
820 HCI_AUTO_CONN_DISABLED,
821 HCI_AUTO_CONN_REPORT,
822 HCI_AUTO_CONN_DIRECT,
823 HCI_AUTO_CONN_ALWAYS,
824 HCI_AUTO_CONN_LINK_LOSS,
825 HCI_AUTO_CONN_EXPLICIT,
826 } auto_connect;
827
828 struct hci_conn *conn;
829 bool explicit_connect;
830 /* Accessed without hdev->lock: */
831 hci_conn_flags_t flags;
832 u8 privacy_mode;
833 };
834
835 extern struct list_head hci_dev_list;
836 extern struct list_head hci_cb_list;
837 extern rwlock_t hci_dev_list_lock;
838 extern struct mutex hci_cb_list_lock;
839
840 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
841 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
842 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
843 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
844 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
845 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
846 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
847
848 #define hci_dev_clear_volatile_flags(hdev) \
849 do { \
850 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
851 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
852 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
853 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
854 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
855 } while (0)
856
857 #define hci_dev_le_state_simultaneous(hdev) \
858 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
859 (hdev->le_states[4] & 0x08) && /* Central */ \
860 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
861 (hdev->le_states[3] & 0x10)) /* Simultaneous */
862
863 /* ----- HCI interface to upper protocols ----- */
864 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
865 int l2cap_disconn_ind(struct hci_conn *hcon);
866 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
867
868 #if IS_ENABLED(CONFIG_BT_BREDR)
869 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
870 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
871 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)872 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
873 __u8 *flags)
874 {
875 return 0;
876 }
877
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)878 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
879 {
880 }
881 #endif
882
883 #if IS_ENABLED(CONFIG_BT_LE)
884 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
885 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
886 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)887 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
888 __u8 *flags)
889 {
890 return 0;
891 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)892 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
893 u16 flags)
894 {
895 }
896 #endif
897
898 /* ----- Inquiry cache ----- */
899 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
900 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
901
discovery_init(struct hci_dev * hdev)902 static inline void discovery_init(struct hci_dev *hdev)
903 {
904 hdev->discovery.state = DISCOVERY_STOPPED;
905 INIT_LIST_HEAD(&hdev->discovery.all);
906 INIT_LIST_HEAD(&hdev->discovery.unknown);
907 INIT_LIST_HEAD(&hdev->discovery.resolve);
908 hdev->discovery.report_invalid_rssi = true;
909 hdev->discovery.rssi = HCI_RSSI_INVALID;
910 }
911
hci_discovery_filter_clear(struct hci_dev * hdev)912 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
913 {
914 hdev->discovery.result_filtering = false;
915 hdev->discovery.report_invalid_rssi = true;
916 hdev->discovery.rssi = HCI_RSSI_INVALID;
917 hdev->discovery.uuid_count = 0;
918 kfree(hdev->discovery.uuids);
919 hdev->discovery.uuids = NULL;
920 hdev->discovery.scan_start = 0;
921 hdev->discovery.scan_duration = 0;
922 }
923
924 bool hci_discovery_active(struct hci_dev *hdev);
925
926 void hci_discovery_set_state(struct hci_dev *hdev, int state);
927
inquiry_cache_empty(struct hci_dev * hdev)928 static inline int inquiry_cache_empty(struct hci_dev *hdev)
929 {
930 return list_empty(&hdev->discovery.all);
931 }
932
inquiry_cache_age(struct hci_dev * hdev)933 static inline long inquiry_cache_age(struct hci_dev *hdev)
934 {
935 struct discovery_state *c = &hdev->discovery;
936 return jiffies - c->timestamp;
937 }
938
inquiry_entry_age(struct inquiry_entry * e)939 static inline long inquiry_entry_age(struct inquiry_entry *e)
940 {
941 return jiffies - e->timestamp;
942 }
943
944 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
945 bdaddr_t *bdaddr);
946 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
947 bdaddr_t *bdaddr);
948 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
949 bdaddr_t *bdaddr,
950 int state);
951 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
952 struct inquiry_entry *ie);
953 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
954 bool name_known);
955 void hci_inquiry_cache_flush(struct hci_dev *hdev);
956
957 /* ----- HCI Connections ----- */
958 enum {
959 HCI_CONN_AUTH_PEND,
960 HCI_CONN_ENCRYPT_PEND,
961 HCI_CONN_RSWITCH_PEND,
962 HCI_CONN_MODE_CHANGE_PEND,
963 HCI_CONN_SCO_SETUP_PEND,
964 HCI_CONN_MGMT_CONNECTED,
965 HCI_CONN_SSP_ENABLED,
966 HCI_CONN_SC_ENABLED,
967 HCI_CONN_AES_CCM,
968 HCI_CONN_POWER_SAVE,
969 HCI_CONN_FLUSH_KEY,
970 HCI_CONN_ENCRYPT,
971 HCI_CONN_AUTH,
972 HCI_CONN_SECURE,
973 HCI_CONN_FIPS,
974 HCI_CONN_STK_ENCRYPT,
975 HCI_CONN_AUTH_INITIATOR,
976 HCI_CONN_DROP,
977 HCI_CONN_CANCEL,
978 HCI_CONN_PARAM_REMOVAL_PEND,
979 HCI_CONN_NEW_LINK_KEY,
980 HCI_CONN_SCANNING,
981 HCI_CONN_AUTH_FAILURE,
982 HCI_CONN_PER_ADV,
983 HCI_CONN_BIG_CREATED,
984 HCI_CONN_CREATE_CIS,
985 HCI_CONN_BIG_SYNC,
986 HCI_CONN_BIG_SYNC_FAILED,
987 HCI_CONN_PA_SYNC,
988 HCI_CONN_PA_SYNC_FAILED,
989 };
990
hci_conn_ssp_enabled(struct hci_conn * conn)991 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
992 {
993 struct hci_dev *hdev = conn->hdev;
994 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
995 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
996 }
997
hci_conn_sc_enabled(struct hci_conn * conn)998 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
999 {
1000 struct hci_dev *hdev = conn->hdev;
1001 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
1002 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
1003 }
1004
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)1005 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
1006 {
1007 struct hci_conn_hash *h = &hdev->conn_hash;
1008 list_add_tail_rcu(&c->list, &h->list);
1009 switch (c->type) {
1010 case ACL_LINK:
1011 h->acl_num++;
1012 break;
1013 case AMP_LINK:
1014 h->amp_num++;
1015 break;
1016 case LE_LINK:
1017 h->le_num++;
1018 if (c->role == HCI_ROLE_SLAVE)
1019 h->le_num_peripheral++;
1020 break;
1021 case SCO_LINK:
1022 case ESCO_LINK:
1023 h->sco_num++;
1024 break;
1025 case ISO_LINK:
1026 h->iso_num++;
1027 break;
1028 }
1029 }
1030
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)1031 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1032 {
1033 struct hci_conn_hash *h = &hdev->conn_hash;
1034
1035 list_del_rcu(&c->list);
1036 synchronize_rcu();
1037
1038 switch (c->type) {
1039 case ACL_LINK:
1040 h->acl_num--;
1041 break;
1042 case AMP_LINK:
1043 h->amp_num--;
1044 break;
1045 case LE_LINK:
1046 h->le_num--;
1047 if (c->role == HCI_ROLE_SLAVE)
1048 h->le_num_peripheral--;
1049 break;
1050 case SCO_LINK:
1051 case ESCO_LINK:
1052 h->sco_num--;
1053 break;
1054 case ISO_LINK:
1055 h->iso_num--;
1056 break;
1057 }
1058 }
1059
hci_conn_num(struct hci_dev * hdev,__u8 type)1060 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1061 {
1062 struct hci_conn_hash *h = &hdev->conn_hash;
1063 switch (type) {
1064 case ACL_LINK:
1065 return h->acl_num;
1066 case AMP_LINK:
1067 return h->amp_num;
1068 case LE_LINK:
1069 return h->le_num;
1070 case SCO_LINK:
1071 case ESCO_LINK:
1072 return h->sco_num;
1073 case ISO_LINK:
1074 return h->iso_num;
1075 default:
1076 return 0;
1077 }
1078 }
1079
hci_conn_count(struct hci_dev * hdev)1080 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1081 {
1082 struct hci_conn_hash *c = &hdev->conn_hash;
1083
1084 return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
1085 }
1086
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)1087 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1088 {
1089 struct hci_conn_hash *h = &hdev->conn_hash;
1090 struct hci_conn *c;
1091 __u8 type = INVALID_LINK;
1092
1093 rcu_read_lock();
1094
1095 list_for_each_entry_rcu(c, &h->list, list) {
1096 if (c->handle == handle) {
1097 type = c->type;
1098 break;
1099 }
1100 }
1101
1102 rcu_read_unlock();
1103
1104 return type;
1105 }
1106
hci_conn_hash_lookup_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 bis)1107 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1108 bdaddr_t *ba, __u8 bis)
1109 {
1110 struct hci_conn_hash *h = &hdev->conn_hash;
1111 struct hci_conn *c;
1112
1113 rcu_read_lock();
1114
1115 list_for_each_entry_rcu(c, &h->list, list) {
1116 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1117 continue;
1118
1119 if (c->iso_qos.bcast.bis == bis) {
1120 rcu_read_unlock();
1121 return c;
1122 }
1123 }
1124 rcu_read_unlock();
1125
1126 return NULL;
1127 }
1128
1129 static inline struct hci_conn *
hci_conn_hash_lookup_per_adv_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 big,__u8 bis)1130 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1131 bdaddr_t *ba,
1132 __u8 big, __u8 bis)
1133 {
1134 struct hci_conn_hash *h = &hdev->conn_hash;
1135 struct hci_conn *c;
1136
1137 rcu_read_lock();
1138
1139 list_for_each_entry_rcu(c, &h->list, list) {
1140 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1141 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1142 continue;
1143
1144 if (c->iso_qos.bcast.big == big &&
1145 c->iso_qos.bcast.bis == bis) {
1146 rcu_read_unlock();
1147 return c;
1148 }
1149 }
1150 rcu_read_unlock();
1151
1152 return NULL;
1153 }
1154
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)1155 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1156 __u16 handle)
1157 {
1158 struct hci_conn_hash *h = &hdev->conn_hash;
1159 struct hci_conn *c;
1160
1161 rcu_read_lock();
1162
1163 list_for_each_entry_rcu(c, &h->list, list) {
1164 if (c->handle == handle) {
1165 rcu_read_unlock();
1166 return c;
1167 }
1168 }
1169 rcu_read_unlock();
1170
1171 return NULL;
1172 }
1173
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)1174 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1175 __u8 type, bdaddr_t *ba)
1176 {
1177 struct hci_conn_hash *h = &hdev->conn_hash;
1178 struct hci_conn *c;
1179
1180 rcu_read_lock();
1181
1182 list_for_each_entry_rcu(c, &h->list, list) {
1183 if (c->type == type && !bacmp(&c->dst, ba)) {
1184 rcu_read_unlock();
1185 return c;
1186 }
1187 }
1188
1189 rcu_read_unlock();
1190
1191 return NULL;
1192 }
1193
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1194 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1195 bdaddr_t *ba,
1196 __u8 ba_type)
1197 {
1198 struct hci_conn_hash *h = &hdev->conn_hash;
1199 struct hci_conn *c;
1200
1201 rcu_read_lock();
1202
1203 list_for_each_entry_rcu(c, &h->list, list) {
1204 if (c->type != LE_LINK)
1205 continue;
1206
1207 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1208 rcu_read_unlock();
1209 return c;
1210 }
1211 }
1212
1213 rcu_read_unlock();
1214
1215 return NULL;
1216 }
1217
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1218 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1219 bdaddr_t *ba,
1220 __u8 ba_type,
1221 __u8 cig,
1222 __u8 id)
1223 {
1224 struct hci_conn_hash *h = &hdev->conn_hash;
1225 struct hci_conn *c;
1226
1227 rcu_read_lock();
1228
1229 list_for_each_entry_rcu(c, &h->list, list) {
1230 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1231 continue;
1232
1233 /* Match CIG ID if set */
1234 if (cig != c->iso_qos.ucast.cig)
1235 continue;
1236
1237 /* Match CIS ID if set */
1238 if (id != c->iso_qos.ucast.cis)
1239 continue;
1240
1241 /* Match destination address if set */
1242 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1243 rcu_read_unlock();
1244 return c;
1245 }
1246 }
1247
1248 rcu_read_unlock();
1249
1250 return NULL;
1251 }
1252
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1253 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1254 __u8 handle)
1255 {
1256 struct hci_conn_hash *h = &hdev->conn_hash;
1257 struct hci_conn *c;
1258
1259 rcu_read_lock();
1260
1261 list_for_each_entry_rcu(c, &h->list, list) {
1262 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1263 continue;
1264
1265 if (handle == c->iso_qos.ucast.cig) {
1266 rcu_read_unlock();
1267 return c;
1268 }
1269 }
1270
1271 rcu_read_unlock();
1272
1273 return NULL;
1274 }
1275
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1276 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1277 __u8 handle)
1278 {
1279 struct hci_conn_hash *h = &hdev->conn_hash;
1280 struct hci_conn *c;
1281
1282 rcu_read_lock();
1283
1284 list_for_each_entry_rcu(c, &h->list, list) {
1285 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1286 continue;
1287
1288 if (handle == c->iso_qos.bcast.big) {
1289 rcu_read_unlock();
1290 return c;
1291 }
1292 }
1293
1294 rcu_read_unlock();
1295
1296 return NULL;
1297 }
1298
hci_conn_hash_lookup_big_any_dst(struct hci_dev * hdev,__u8 handle)1299 static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(struct hci_dev *hdev,
1300 __u8 handle)
1301 {
1302 struct hci_conn_hash *h = &hdev->conn_hash;
1303 struct hci_conn *c;
1304
1305 rcu_read_lock();
1306
1307 list_for_each_entry_rcu(c, &h->list, list) {
1308 if (c->type != ISO_LINK)
1309 continue;
1310
1311 if (handle != BT_ISO_QOS_BIG_UNSET && handle == c->iso_qos.bcast.big) {
1312 rcu_read_unlock();
1313 return c;
1314 }
1315 }
1316
1317 rcu_read_unlock();
1318
1319 return NULL;
1320 }
1321
1322 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1323 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1324 {
1325 struct hci_conn_hash *h = &hdev->conn_hash;
1326 struct hci_conn *c;
1327
1328 rcu_read_lock();
1329
1330 list_for_each_entry_rcu(c, &h->list, list) {
1331 if (c->type != ISO_LINK ||
1332 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1333 continue;
1334
1335 if (c->iso_qos.bcast.big == big) {
1336 rcu_read_unlock();
1337 return c;
1338 }
1339 }
1340 rcu_read_unlock();
1341
1342 return NULL;
1343 }
1344
1345 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1346 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1347 {
1348 struct hci_conn_hash *h = &hdev->conn_hash;
1349 struct hci_conn *c;
1350
1351 rcu_read_lock();
1352
1353 list_for_each_entry_rcu(c, &h->list, list) {
1354 if (c->type != ISO_LINK ||
1355 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1356 continue;
1357
1358 if (c->sync_handle == sync_handle) {
1359 rcu_read_unlock();
1360 return c;
1361 }
1362 }
1363 rcu_read_unlock();
1364
1365 return NULL;
1366 }
1367
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1368 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1369 __u8 type, __u16 state)
1370 {
1371 struct hci_conn_hash *h = &hdev->conn_hash;
1372 struct hci_conn *c;
1373
1374 rcu_read_lock();
1375
1376 list_for_each_entry_rcu(c, &h->list, list) {
1377 if (c->type == type && c->state == state) {
1378 rcu_read_unlock();
1379 return c;
1380 }
1381 }
1382
1383 rcu_read_unlock();
1384
1385 return NULL;
1386 }
1387
1388 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
hci_conn_hash_list_state(struct hci_dev * hdev,hci_conn_func_t func,__u8 type,__u16 state,void * data)1389 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1390 hci_conn_func_t func, __u8 type,
1391 __u16 state, void *data)
1392 {
1393 struct hci_conn_hash *h = &hdev->conn_hash;
1394 struct hci_conn *c;
1395
1396 if (!func)
1397 return;
1398
1399 rcu_read_lock();
1400
1401 list_for_each_entry_rcu(c, &h->list, list) {
1402 if (c->type == type && c->state == state)
1403 func(c, data);
1404 }
1405
1406 rcu_read_unlock();
1407 }
1408
hci_lookup_le_connect(struct hci_dev * hdev)1409 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1410 {
1411 struct hci_conn_hash *h = &hdev->conn_hash;
1412 struct hci_conn *c;
1413
1414 rcu_read_lock();
1415
1416 list_for_each_entry_rcu(c, &h->list, list) {
1417 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1418 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1419 rcu_read_unlock();
1420 return c;
1421 }
1422 }
1423
1424 rcu_read_unlock();
1425
1426 return NULL;
1427 }
1428
1429 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1430 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1431 {
1432 struct hci_conn_hash *h = &hdev->conn_hash;
1433 struct hci_conn *c;
1434
1435 rcu_read_lock();
1436
1437 list_for_each_entry_rcu(c, &h->list, list) {
1438 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1439 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1440 rcu_read_unlock();
1441 return true;
1442 }
1443 }
1444
1445 rcu_read_unlock();
1446
1447 return false;
1448 }
1449
1450 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1451 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1452 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1453 bool hci_iso_setup_path(struct hci_conn *conn);
1454 int hci_le_create_cis_pending(struct hci_dev *hdev);
1455 int hci_conn_check_create_cis(struct hci_conn *conn);
1456
1457 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1458 u8 role, u16 handle);
1459 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1460 bdaddr_t *dst, u8 role);
1461 void hci_conn_del(struct hci_conn *conn);
1462 void hci_conn_hash_flush(struct hci_dev *hdev);
1463 void hci_conn_check_pending(struct hci_dev *hdev);
1464
1465 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1466 void hci_chan_del(struct hci_chan *chan);
1467 void hci_chan_list_flush(struct hci_conn *conn);
1468 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1469
1470 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1471 u8 dst_type, u8 sec_level,
1472 u16 conn_timeout,
1473 enum conn_reasons conn_reason);
1474 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1475 u8 dst_type, bool dst_resolved, u8 sec_level,
1476 u16 conn_timeout, u8 role);
1477 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1478 u8 sec_level, u8 auth_type,
1479 enum conn_reasons conn_reason);
1480 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1481 __u16 setting, struct bt_codec *codec);
1482 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1483 __u8 dst_type, struct bt_iso_qos *qos);
1484 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1485 struct bt_iso_qos *qos,
1486 __u8 base_len, __u8 *base);
1487 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1488 __u8 dst_type, struct bt_iso_qos *qos);
1489 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1490 __u8 dst_type, struct bt_iso_qos *qos,
1491 __u8 data_len, __u8 *data);
1492 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1493 __u8 sid, struct bt_iso_qos *qos);
1494 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1495 struct bt_iso_qos *qos,
1496 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1497 int hci_conn_check_link_mode(struct hci_conn *conn);
1498 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1499 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1500 bool initiator);
1501 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1502
1503 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1504
1505 void hci_conn_failed(struct hci_conn *conn, u8 status);
1506 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1507
1508 /*
1509 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1510 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1511 * working or anything else. They just guarantee that the object is available
1512 * and can be dereferenced. So you can use its locks, local variables and any
1513 * other constant data.
1514 * Before accessing runtime data, you _must_ lock the object and then check that
1515 * it is still running. As soon as you release the locks, the connection might
1516 * get dropped, though.
1517 *
1518 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1519 * how long the underlying connection is held. So every channel that runs on the
1520 * hci_conn object calls this to prevent the connection from disappearing. As
1521 * long as you hold a device, you must also guarantee that you have a valid
1522 * reference to the device via hci_conn_get() (or the initial reference from
1523 * hci_conn_add()).
1524 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1525 * break because nobody cares for that. But this means, we cannot use
1526 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1527 */
1528
hci_conn_get(struct hci_conn * conn)1529 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1530 {
1531 get_device(&conn->dev);
1532 return conn;
1533 }
1534
hci_conn_put(struct hci_conn * conn)1535 static inline void hci_conn_put(struct hci_conn *conn)
1536 {
1537 put_device(&conn->dev);
1538 }
1539
hci_conn_hold(struct hci_conn * conn)1540 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1541 {
1542 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1543
1544 atomic_inc(&conn->refcnt);
1545 cancel_delayed_work(&conn->disc_work);
1546
1547 return conn;
1548 }
1549
hci_conn_drop(struct hci_conn * conn)1550 static inline void hci_conn_drop(struct hci_conn *conn)
1551 {
1552 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1553
1554 if (atomic_dec_and_test(&conn->refcnt)) {
1555 unsigned long timeo;
1556
1557 switch (conn->type) {
1558 case ACL_LINK:
1559 case LE_LINK:
1560 cancel_delayed_work(&conn->idle_work);
1561 if (conn->state == BT_CONNECTED) {
1562 timeo = conn->disc_timeout;
1563 if (!conn->out)
1564 timeo *= 2;
1565 } else {
1566 timeo = 0;
1567 }
1568 break;
1569
1570 case AMP_LINK:
1571 timeo = conn->disc_timeout;
1572 break;
1573
1574 default:
1575 timeo = 0;
1576 break;
1577 }
1578
1579 cancel_delayed_work(&conn->disc_work);
1580 queue_delayed_work(conn->hdev->workqueue,
1581 &conn->disc_work, timeo);
1582 }
1583 }
1584
1585 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1586 static inline void hci_dev_put(struct hci_dev *d)
1587 {
1588 BT_DBG("%s orig refcnt %d", d->name,
1589 kref_read(&d->dev.kobj.kref));
1590
1591 put_device(&d->dev);
1592 }
1593
hci_dev_hold(struct hci_dev * d)1594 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1595 {
1596 BT_DBG("%s orig refcnt %d", d->name,
1597 kref_read(&d->dev.kobj.kref));
1598
1599 get_device(&d->dev);
1600 return d;
1601 }
1602
1603 #define hci_dev_lock(d) mutex_lock(&d->lock)
1604 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1605
1606 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1607 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1608
hci_get_drvdata(struct hci_dev * hdev)1609 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1610 {
1611 return dev_get_drvdata(&hdev->dev);
1612 }
1613
hci_set_drvdata(struct hci_dev * hdev,void * data)1614 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1615 {
1616 dev_set_drvdata(&hdev->dev, data);
1617 }
1618
hci_get_priv(struct hci_dev * hdev)1619 static inline void *hci_get_priv(struct hci_dev *hdev)
1620 {
1621 return (char *)hdev + sizeof(*hdev);
1622 }
1623
1624 struct hci_dev *hci_dev_get(int index);
1625 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1626
1627 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1628
hci_alloc_dev(void)1629 static inline struct hci_dev *hci_alloc_dev(void)
1630 {
1631 return hci_alloc_dev_priv(0);
1632 }
1633
1634 void hci_free_dev(struct hci_dev *hdev);
1635 int hci_register_dev(struct hci_dev *hdev);
1636 void hci_unregister_dev(struct hci_dev *hdev);
1637 void hci_release_dev(struct hci_dev *hdev);
1638 int hci_register_suspend_notifier(struct hci_dev *hdev);
1639 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1640 int hci_suspend_dev(struct hci_dev *hdev);
1641 int hci_resume_dev(struct hci_dev *hdev);
1642 int hci_reset_dev(struct hci_dev *hdev);
1643 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1644 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1645 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1646 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1647
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1648 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1649 {
1650 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1651 hdev->msft_opcode = opcode;
1652 #endif
1653 }
1654
hci_set_aosp_capable(struct hci_dev * hdev)1655 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1656 {
1657 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1658 hdev->aosp_capable = true;
1659 #endif
1660 }
1661
hci_devcd_setup(struct hci_dev * hdev)1662 static inline void hci_devcd_setup(struct hci_dev *hdev)
1663 {
1664 #ifdef CONFIG_DEV_COREDUMP
1665 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1666 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1667 skb_queue_head_init(&hdev->dump.dump_q);
1668 #endif
1669 }
1670
1671 int hci_dev_open(__u16 dev);
1672 int hci_dev_close(__u16 dev);
1673 int hci_dev_do_close(struct hci_dev *hdev);
1674 int hci_dev_reset(__u16 dev);
1675 int hci_dev_reset_stat(__u16 dev);
1676 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1677 int hci_get_dev_list(void __user *arg);
1678 int hci_get_dev_info(void __user *arg);
1679 int hci_get_conn_list(void __user *arg);
1680 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1681 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1682 int hci_inquiry(void __user *arg);
1683
1684 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1685 bdaddr_t *bdaddr, u8 type);
1686 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1687 struct list_head *list, bdaddr_t *bdaddr,
1688 u8 type);
1689 struct bdaddr_list_with_flags *
1690 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1691 u8 type);
1692 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1693 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1694 u8 type, u8 *peer_irk, u8 *local_irk);
1695 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1696 u8 type, u32 flags);
1697 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1698 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1699 u8 type);
1700 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1701 u8 type);
1702 void hci_bdaddr_list_clear(struct list_head *list);
1703
1704 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1705 bdaddr_t *addr, u8 addr_type);
1706 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1707 bdaddr_t *addr, u8 addr_type);
1708 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1709 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1710 void hci_conn_params_free(struct hci_conn_params *param);
1711
1712 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1713 void hci_pend_le_list_add(struct hci_conn_params *param,
1714 struct list_head *list);
1715 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1716 bdaddr_t *addr,
1717 u8 addr_type);
1718
1719 void hci_uuids_clear(struct hci_dev *hdev);
1720
1721 void hci_link_keys_clear(struct hci_dev *hdev);
1722 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1723 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1724 bdaddr_t *bdaddr, u8 *val, u8 type,
1725 u8 pin_len, bool *persistent);
1726 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1727 u8 addr_type, u8 type, u8 authenticated,
1728 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1729 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1730 u8 addr_type, u8 role);
1731 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1732 void hci_smp_ltks_clear(struct hci_dev *hdev);
1733 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1734
1735 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1736 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1737 u8 addr_type);
1738 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1739 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1740 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1741 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1742 void hci_blocked_keys_clear(struct hci_dev *hdev);
1743 void hci_smp_irks_clear(struct hci_dev *hdev);
1744
1745 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1746
1747 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1748 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1749 bdaddr_t *bdaddr, u8 bdaddr_type);
1750 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1751 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1752 u8 *hash256, u8 *rand256);
1753 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1754 u8 bdaddr_type);
1755
1756 void hci_adv_instances_clear(struct hci_dev *hdev);
1757 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1758 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1759 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1760 u32 flags, u16 adv_data_len, u8 *adv_data,
1761 u16 scan_rsp_len, u8 *scan_rsp_data,
1762 u16 timeout, u16 duration, s8 tx_power,
1763 u32 min_interval, u32 max_interval,
1764 u8 mesh_handle);
1765 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1766 u32 flags, u8 data_len, u8 *data,
1767 u32 min_interval, u32 max_interval);
1768 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1769 u16 adv_data_len, u8 *adv_data,
1770 u16 scan_rsp_len, u8 *scan_rsp_data);
1771 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1772 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1773 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1774 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1775
1776 void hci_adv_monitors_clear(struct hci_dev *hdev);
1777 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1778 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1779 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1780 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1781 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1782 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1783
1784 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1785
1786 void hci_init_sysfs(struct hci_dev *hdev);
1787 void hci_conn_init_sysfs(struct hci_conn *conn);
1788 void hci_conn_add_sysfs(struct hci_conn *conn);
1789 void hci_conn_del_sysfs(struct hci_conn *conn);
1790
1791 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1792 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1793
1794 /* ----- LMP capabilities ----- */
1795 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1796 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1797 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1798 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1799 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1800 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1801 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1802 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1803 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1804 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1805 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1806 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1807 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1808 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1809 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1810 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1811 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1812 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1813 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1814 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1815 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1816 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1817 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1818 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1819
1820 /* ----- Extended LMP capabilities ----- */
1821 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1822 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1823 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1824 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1825 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1826 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1827
1828 /* ----- Host capabilities ----- */
1829 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1830 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1831 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1832 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1833
1834 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1835 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1836 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1837 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1838 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1839 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1840 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1841 !adv->rpa_expired)
1842
1843 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1844 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1845
1846 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1847
1848 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1849 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1850
1851 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1852 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1853 &(dev)->quirks))
1854
1855 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1856 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1857
1858 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1859
1860 /* Use LL Privacy based address resolution if supported */
1861 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1862 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1863
1864 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1865 (hdev->commands[39] & 0x04))
1866
1867 /* Use enhanced synchronous connection if command is supported and its quirk
1868 * has not been set.
1869 */
1870 #define enhanced_sync_conn_capable(dev) \
1871 (((dev)->commands[29] & 0x08) && \
1872 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1873
1874 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1875 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1876 ((dev)->commands[37] & 0x40) && \
1877 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1878
1879 /* Use ext create connection if command is supported */
1880 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1881
1882 /* Extended advertising support */
1883 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1884
1885 /* Maximum advertising length */
1886 #define max_adv_len(dev) \
1887 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1888
1889 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1890 *
1891 * C24: Mandatory if the LE Controller supports Connection State and either
1892 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1893 */
1894 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1895 ext_adv_capable(dev))
1896
1897 /* Periodic advertising support */
1898 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1899
1900 /* CIS Master/Slave and BIS support */
1901 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1902 #define cis_capable(dev) \
1903 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1904 #define cis_central_capable(dev) \
1905 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1906 #define cis_peripheral_capable(dev) \
1907 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1908 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1909 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1910
1911 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1912 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1913
1914 /* ----- HCI protocols ----- */
1915 #define HCI_PROTO_DEFER 0x01
1916
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1917 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1918 __u8 type, __u8 *flags)
1919 {
1920 switch (type) {
1921 case ACL_LINK:
1922 return l2cap_connect_ind(hdev, bdaddr);
1923
1924 case SCO_LINK:
1925 case ESCO_LINK:
1926 return sco_connect_ind(hdev, bdaddr, flags);
1927
1928 case ISO_LINK:
1929 return iso_connect_ind(hdev, bdaddr, flags);
1930
1931 default:
1932 BT_ERR("unknown link type %d", type);
1933 return -EINVAL;
1934 }
1935 }
1936
hci_proto_disconn_ind(struct hci_conn * conn)1937 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1938 {
1939 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1940 return HCI_ERROR_REMOTE_USER_TERM;
1941
1942 return l2cap_disconn_ind(conn);
1943 }
1944
1945 /* ----- HCI callbacks ----- */
1946 struct hci_cb {
1947 struct list_head list;
1948
1949 char *name;
1950
1951 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1952 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1953 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1954 __u8 encrypt);
1955 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1956 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1957 };
1958
hci_connect_cfm(struct hci_conn * conn,__u8 status)1959 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1960 {
1961 struct hci_cb *cb;
1962
1963 mutex_lock(&hci_cb_list_lock);
1964 list_for_each_entry(cb, &hci_cb_list, list) {
1965 if (cb->connect_cfm)
1966 cb->connect_cfm(conn, status);
1967 }
1968 mutex_unlock(&hci_cb_list_lock);
1969
1970 if (conn->connect_cfm_cb)
1971 conn->connect_cfm_cb(conn, status);
1972 }
1973
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1974 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1975 {
1976 struct hci_cb *cb;
1977
1978 mutex_lock(&hci_cb_list_lock);
1979 list_for_each_entry(cb, &hci_cb_list, list) {
1980 if (cb->disconn_cfm)
1981 cb->disconn_cfm(conn, reason);
1982 }
1983 mutex_unlock(&hci_cb_list_lock);
1984
1985 if (conn->disconn_cfm_cb)
1986 conn->disconn_cfm_cb(conn, reason);
1987 }
1988
hci_auth_cfm(struct hci_conn * conn,__u8 status)1989 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1990 {
1991 struct hci_cb *cb;
1992 __u8 encrypt;
1993
1994 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1995 return;
1996
1997 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1998
1999 mutex_lock(&hci_cb_list_lock);
2000 list_for_each_entry(cb, &hci_cb_list, list) {
2001 if (cb->security_cfm)
2002 cb->security_cfm(conn, status, encrypt);
2003 }
2004 mutex_unlock(&hci_cb_list_lock);
2005
2006 if (conn->security_cfm_cb)
2007 conn->security_cfm_cb(conn, status);
2008 }
2009
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2010 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2011 {
2012 struct hci_cb *cb;
2013 __u8 encrypt;
2014
2015 if (conn->state == BT_CONFIG) {
2016 if (!status)
2017 conn->state = BT_CONNECTED;
2018
2019 hci_connect_cfm(conn, status);
2020 hci_conn_drop(conn);
2021 return;
2022 }
2023
2024 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2025 encrypt = 0x00;
2026 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2027 encrypt = 0x02;
2028 else
2029 encrypt = 0x01;
2030
2031 if (!status) {
2032 if (conn->sec_level == BT_SECURITY_SDP)
2033 conn->sec_level = BT_SECURITY_LOW;
2034
2035 if (conn->pending_sec_level > conn->sec_level)
2036 conn->sec_level = conn->pending_sec_level;
2037 }
2038
2039 mutex_lock(&hci_cb_list_lock);
2040 list_for_each_entry(cb, &hci_cb_list, list) {
2041 if (cb->security_cfm)
2042 cb->security_cfm(conn, status, encrypt);
2043 }
2044 mutex_unlock(&hci_cb_list_lock);
2045
2046 if (conn->security_cfm_cb)
2047 conn->security_cfm_cb(conn, status);
2048 }
2049
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2050 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2051 {
2052 struct hci_cb *cb;
2053
2054 mutex_lock(&hci_cb_list_lock);
2055 list_for_each_entry(cb, &hci_cb_list, list) {
2056 if (cb->key_change_cfm)
2057 cb->key_change_cfm(conn, status);
2058 }
2059 mutex_unlock(&hci_cb_list_lock);
2060 }
2061
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2062 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2063 __u8 role)
2064 {
2065 struct hci_cb *cb;
2066
2067 mutex_lock(&hci_cb_list_lock);
2068 list_for_each_entry(cb, &hci_cb_list, list) {
2069 if (cb->role_switch_cfm)
2070 cb->role_switch_cfm(conn, status, role);
2071 }
2072 mutex_unlock(&hci_cb_list_lock);
2073 }
2074
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2075 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2076 {
2077 if (addr_type != ADDR_LE_DEV_RANDOM)
2078 return false;
2079
2080 if ((bdaddr->b[5] & 0xc0) == 0x40)
2081 return true;
2082
2083 return false;
2084 }
2085
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2086 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2087 {
2088 if (addr_type == ADDR_LE_DEV_PUBLIC)
2089 return true;
2090
2091 /* Check for Random Static address type */
2092 if ((addr->b[5] & 0xc0) == 0xc0)
2093 return true;
2094
2095 return false;
2096 }
2097
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2098 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2099 bdaddr_t *bdaddr, u8 addr_type)
2100 {
2101 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2102 return NULL;
2103
2104 return hci_find_irk_by_rpa(hdev, bdaddr);
2105 }
2106
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2107 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2108 u16 to_multiplier)
2109 {
2110 u16 max_latency;
2111
2112 if (min > max || min < 6 || max > 3200)
2113 return -EINVAL;
2114
2115 if (to_multiplier < 10 || to_multiplier > 3200)
2116 return -EINVAL;
2117
2118 if (max >= to_multiplier * 8)
2119 return -EINVAL;
2120
2121 max_latency = (to_multiplier * 4 / max) - 1;
2122 if (latency > 499 || latency > max_latency)
2123 return -EINVAL;
2124
2125 return 0;
2126 }
2127
2128 int hci_register_cb(struct hci_cb *hcb);
2129 int hci_unregister_cb(struct hci_cb *hcb);
2130
2131 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2132 const void *param);
2133
2134 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2135 const void *param);
2136 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2137 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2138 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2139
2140 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2141 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2142
2143 u32 hci_conn_get_phy(struct hci_conn *conn);
2144
2145 /* ----- HCI Sockets ----- */
2146 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2147 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2148 int flag, struct sock *skip_sk);
2149 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2150 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2151 void *data, u16 data_len, ktime_t tstamp,
2152 int flag, struct sock *skip_sk);
2153
2154 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2155
2156 #define HCI_MGMT_VAR_LEN BIT(0)
2157 #define HCI_MGMT_NO_HDEV BIT(1)
2158 #define HCI_MGMT_UNTRUSTED BIT(2)
2159 #define HCI_MGMT_UNCONFIGURED BIT(3)
2160 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2161
2162 struct hci_mgmt_handler {
2163 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2164 u16 data_len);
2165 size_t data_len;
2166 unsigned long flags;
2167 };
2168
2169 struct hci_mgmt_chan {
2170 struct list_head list;
2171 unsigned short channel;
2172 size_t handler_count;
2173 const struct hci_mgmt_handler *handlers;
2174 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2175 };
2176
2177 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2178 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2179
2180 /* Management interface */
2181 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2182 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2183 BIT(BDADDR_LE_RANDOM))
2184 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2185 BIT(BDADDR_LE_PUBLIC) | \
2186 BIT(BDADDR_LE_RANDOM))
2187
2188 /* These LE scan and inquiry parameters were chosen according to LE General
2189 * Discovery Procedure specification.
2190 */
2191 #define DISCOV_LE_SCAN_WIN 0x12
2192 #define DISCOV_LE_SCAN_INT 0x12
2193 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2194 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2195 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2196 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2197 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2198 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2199 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2200 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2201 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2202 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2203 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2204 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2205
2206 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2207
2208 void mgmt_fill_version_info(void *ver);
2209 int mgmt_new_settings(struct hci_dev *hdev);
2210 void mgmt_index_added(struct hci_dev *hdev);
2211 void mgmt_index_removed(struct hci_dev *hdev);
2212 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2213 void mgmt_power_on(struct hci_dev *hdev, int err);
2214 void __mgmt_power_off(struct hci_dev *hdev);
2215 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2216 bool persistent);
2217 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2218 u8 *name, u8 name_len);
2219 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2220 u8 link_type, u8 addr_type, u8 reason,
2221 bool mgmt_connected);
2222 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2223 u8 link_type, u8 addr_type, u8 status);
2224 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2225 u8 addr_type, u8 status);
2226 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2227 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2228 u8 status);
2229 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2230 u8 status);
2231 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2232 u8 link_type, u8 addr_type, u32 value,
2233 u8 confirm_hint);
2234 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2235 u8 link_type, u8 addr_type, u8 status);
2236 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2237 u8 link_type, u8 addr_type, u8 status);
2238 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2239 u8 link_type, u8 addr_type);
2240 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2241 u8 link_type, u8 addr_type, u8 status);
2242 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2243 u8 link_type, u8 addr_type, u8 status);
2244 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2245 u8 link_type, u8 addr_type, u32 passkey,
2246 u8 entered);
2247 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2248 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2249 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2250 u8 status);
2251 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2252 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2253 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2254 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2255 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2256 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2257 u64 instant);
2258 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2259 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2260 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2261 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2262 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2263 u8 addr_type);
2264 bool mgmt_powering_down(struct hci_dev *hdev);
2265 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2266 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2267 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2268 bool persistent);
2269 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2270 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2271 u16 max_interval, u16 latency, u16 timeout);
2272 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2273 bool mgmt_get_connectable(struct hci_dev *hdev);
2274 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2275 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2276 u8 instance);
2277 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2278 u8 instance);
2279 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2280 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2281 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2282 bdaddr_t *bdaddr, u8 addr_type);
2283
2284 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2285 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2286 u16 to_multiplier);
2287 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2288 __u8 ltk[16], __u8 key_size);
2289
2290 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2291 u8 *bdaddr_type);
2292
2293 #define SCO_AIRMODE_MASK 0x0003
2294 #define SCO_AIRMODE_CVSD 0x0000
2295 #define SCO_AIRMODE_TRANSP 0x0003
2296
2297 #define LOCAL_CODEC_ACL_MASK BIT(0)
2298 #define LOCAL_CODEC_SCO_MASK BIT(1)
2299
2300 #define TRANSPORT_TYPE_MAX 0x04
2301
2302 #endif /* __HCI_CORE_H */
2303