1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4 Copyright 2023-2024 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 sco_num;
130 unsigned int iso_num;
131 unsigned int le_num;
132 unsigned int le_num_peripheral;
133 };
134
135 struct bdaddr_list {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 bdaddr_type;
139 };
140
141 struct codec_list {
142 struct list_head list;
143 u8 id;
144 __u16 cid;
145 __u16 vid;
146 u8 transport;
147 u8 num_caps;
148 u32 len;
149 struct hci_codec_caps caps[];
150 };
151
152 struct bdaddr_list_with_irk {
153 struct list_head list;
154 bdaddr_t bdaddr;
155 u8 bdaddr_type;
156 u8 peer_irk[16];
157 u8 local_irk[16];
158 };
159
160 /* Bitmask of connection flags */
161 enum hci_conn_flags {
162 HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
163 HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
164 };
165 typedef u8 hci_conn_flags_t;
166
167 struct bdaddr_list_with_flags {
168 struct list_head list;
169 bdaddr_t bdaddr;
170 u8 bdaddr_type;
171 hci_conn_flags_t flags;
172 };
173
174 struct bt_uuid {
175 struct list_head list;
176 u8 uuid[16];
177 u8 size;
178 u8 svc_hint;
179 };
180
181 struct blocked_key {
182 struct list_head list;
183 struct rcu_head rcu;
184 u8 type;
185 u8 val[16];
186 };
187
188 struct smp_csrk {
189 bdaddr_t bdaddr;
190 u8 bdaddr_type;
191 u8 link_type;
192 u8 type;
193 u8 val[16];
194 };
195
196 struct smp_ltk {
197 struct list_head list;
198 struct rcu_head rcu;
199 bdaddr_t bdaddr;
200 u8 bdaddr_type;
201 u8 link_type;
202 u8 authenticated;
203 u8 type;
204 u8 enc_size;
205 __le16 ediv;
206 __le64 rand;
207 u8 val[16];
208 };
209
210 struct smp_irk {
211 struct list_head list;
212 struct rcu_head rcu;
213 bdaddr_t rpa;
214 bdaddr_t bdaddr;
215 u8 addr_type;
216 u8 link_type;
217 u8 val[16];
218 };
219
220 struct link_key {
221 struct list_head list;
222 struct rcu_head rcu;
223 bdaddr_t bdaddr;
224 u8 bdaddr_type;
225 u8 link_type;
226 u8 type;
227 u8 val[HCI_LINK_KEY_SIZE];
228 u8 pin_len;
229 };
230
231 struct oob_data {
232 struct list_head list;
233 bdaddr_t bdaddr;
234 u8 bdaddr_type;
235 u8 present;
236 u8 hash192[16];
237 u8 rand192[16];
238 u8 hash256[16];
239 u8 rand256[16];
240 };
241
242 struct adv_info {
243 struct list_head list;
244 bool enabled;
245 bool pending;
246 bool periodic;
247 __u8 mesh;
248 __u8 instance;
249 __u8 handle;
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 #define HCI_MAX_PAGES 3
345
346 struct hci_dev {
347 struct list_head list;
348 struct mutex lock;
349
350 struct ida unset_handle_ida;
351
352 const char *name;
353 unsigned long flags;
354 __u16 id;
355 __u8 bus;
356 bdaddr_t bdaddr;
357 bdaddr_t setup_addr;
358 bdaddr_t public_addr;
359 bdaddr_t random_addr;
360 bdaddr_t static_addr;
361 __u8 adv_addr_type;
362 __u8 dev_name[HCI_MAX_NAME_LENGTH];
363 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
364 __u8 eir[HCI_MAX_EIR_LENGTH];
365 __u16 appearance;
366 __u8 dev_class[3];
367 __u8 major_class;
368 __u8 minor_class;
369 __u8 max_page;
370 __u8 features[HCI_MAX_PAGES][8];
371 __u8 le_features[8];
372 __u8 le_accept_list_size;
373 __u8 le_resolv_list_size;
374 __u8 le_num_of_adv_sets;
375 __u8 le_states[8];
376 __u8 mesh_ad_types[16];
377 __u8 mesh_send_ref;
378 __u8 commands[64];
379 __u8 hci_ver;
380 __u16 hci_rev;
381 __u8 lmp_ver;
382 __u16 manufacturer;
383 __u16 lmp_subver;
384 __u16 voice_setting;
385 __u8 num_iac;
386 __u16 stored_max_keys;
387 __u16 stored_num_keys;
388 __u8 io_capability;
389 __s8 inq_tx_power;
390 __u8 err_data_reporting;
391 __u16 page_scan_interval;
392 __u16 page_scan_window;
393 __u8 page_scan_type;
394 __u8 le_adv_channel_map;
395 __u16 le_adv_min_interval;
396 __u16 le_adv_max_interval;
397 __u8 le_scan_type;
398 __u16 le_scan_interval;
399 __u16 le_scan_window;
400 __u16 le_scan_int_suspend;
401 __u16 le_scan_window_suspend;
402 __u16 le_scan_int_discovery;
403 __u16 le_scan_window_discovery;
404 __u16 le_scan_int_adv_monitor;
405 __u16 le_scan_window_adv_monitor;
406 __u16 le_scan_int_connect;
407 __u16 le_scan_window_connect;
408 __u16 le_conn_min_interval;
409 __u16 le_conn_max_interval;
410 __u16 le_conn_latency;
411 __u16 le_supv_timeout;
412 __u16 le_def_tx_len;
413 __u16 le_def_tx_time;
414 __u16 le_max_tx_len;
415 __u16 le_max_tx_time;
416 __u16 le_max_rx_len;
417 __u16 le_max_rx_time;
418 __u8 le_max_key_size;
419 __u8 le_min_key_size;
420 __u16 discov_interleaved_timeout;
421 __u16 conn_info_min_age;
422 __u16 conn_info_max_age;
423 __u16 auth_payload_timeout;
424 __u8 min_enc_key_size;
425 __u8 max_enc_key_size;
426 __u8 pairing_opts;
427 __u8 ssp_debug_mode;
428 __u8 hw_error_code;
429 __u32 clock;
430 __u16 advmon_allowlist_duration;
431 __u16 advmon_no_filter_duration;
432 __u8 enable_advmon_interleave_scan;
433
434 __u16 devid_source;
435 __u16 devid_vendor;
436 __u16 devid_product;
437 __u16 devid_version;
438
439 __u8 def_page_scan_type;
440 __u16 def_page_scan_int;
441 __u16 def_page_scan_window;
442 __u8 def_inq_scan_type;
443 __u16 def_inq_scan_int;
444 __u16 def_inq_scan_window;
445 __u16 def_br_lsto;
446 __u16 def_page_timeout;
447 __u16 def_multi_adv_rotation_duration;
448 __u16 def_le_autoconnect_timeout;
449 __s8 min_le_tx_power;
450 __s8 max_le_tx_power;
451
452 __u16 pkt_type;
453 __u16 esco_type;
454 __u16 link_policy;
455 __u16 link_mode;
456
457 __u32 idle_timeout;
458 __u16 sniff_min_interval;
459 __u16 sniff_max_interval;
460
461 unsigned int auto_accept_delay;
462
463 unsigned long quirks;
464
465 atomic_t cmd_cnt;
466 unsigned int acl_cnt;
467 unsigned int sco_cnt;
468 unsigned int le_cnt;
469 unsigned int iso_cnt;
470
471 unsigned int acl_mtu;
472 unsigned int sco_mtu;
473 unsigned int le_mtu;
474 unsigned int iso_mtu;
475 unsigned int acl_pkts;
476 unsigned int sco_pkts;
477 unsigned int le_pkts;
478 unsigned int iso_pkts;
479
480 unsigned long acl_last_tx;
481 unsigned long sco_last_tx;
482 unsigned long le_last_tx;
483
484 __u8 le_tx_def_phys;
485 __u8 le_rx_def_phys;
486
487 struct workqueue_struct *workqueue;
488 struct workqueue_struct *req_workqueue;
489
490 struct work_struct power_on;
491 struct delayed_work power_off;
492 struct work_struct error_reset;
493 struct work_struct cmd_sync_work;
494 struct list_head cmd_sync_work_list;
495 struct mutex cmd_sync_work_lock;
496 struct mutex unregister_lock;
497 struct work_struct cmd_sync_cancel_work;
498 struct work_struct reenable_adv_work;
499
500 __u16 discov_timeout;
501 struct delayed_work discov_off;
502
503 struct delayed_work service_cache;
504
505 struct delayed_work cmd_timer;
506 struct delayed_work ncmd_timer;
507
508 struct work_struct rx_work;
509 struct work_struct cmd_work;
510 struct work_struct tx_work;
511
512 struct delayed_work le_scan_disable;
513
514 struct sk_buff_head rx_q;
515 struct sk_buff_head raw_q;
516 struct sk_buff_head cmd_q;
517
518 struct sk_buff *sent_cmd;
519 struct sk_buff *recv_event;
520
521 struct mutex req_lock;
522 wait_queue_head_t req_wait_q;
523 __u32 req_status;
524 __u32 req_result;
525 struct sk_buff *req_skb;
526 struct sk_buff *req_rsp;
527
528 void *smp_data;
529 void *smp_bredr_data;
530
531 struct discovery_state discovery;
532
533 int discovery_old_state;
534 bool discovery_paused;
535 int advertising_old_state;
536 bool advertising_paused;
537
538 struct notifier_block suspend_notifier;
539 enum suspended_state suspend_state_next;
540 enum suspended_state suspend_state;
541 bool scanning_paused;
542 bool suspended;
543 u8 wake_reason;
544 bdaddr_t wake_addr;
545 u8 wake_addr_type;
546
547 struct hci_conn_hash conn_hash;
548
549 struct list_head mesh_pending;
550 struct list_head mgmt_pending;
551 struct list_head reject_list;
552 struct list_head accept_list;
553 struct list_head uuids;
554 struct list_head link_keys;
555 struct list_head long_term_keys;
556 struct list_head identity_resolving_keys;
557 struct list_head remote_oob_data;
558 struct list_head le_accept_list;
559 struct list_head le_resolv_list;
560 struct list_head le_conn_params;
561 struct list_head pend_le_conns;
562 struct list_head pend_le_reports;
563 struct list_head blocked_keys;
564 struct list_head local_codecs;
565
566 struct hci_dev_stats stat;
567
568 atomic_t promisc;
569
570 const char *hw_info;
571 const char *fw_info;
572 struct dentry *debugfs;
573
574 struct hci_devcoredump dump;
575
576 struct device dev;
577
578 struct rfkill *rfkill;
579
580 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
581 hci_conn_flags_t conn_flags;
582
583 __s8 adv_tx_power;
584 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
585 __u8 adv_data_len;
586 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
587 __u8 scan_rsp_data_len;
588 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
589 __u8 per_adv_data_len;
590
591 struct list_head adv_instances;
592 unsigned int adv_instance_cnt;
593 __u8 cur_adv_instance;
594 __u16 adv_instance_timeout;
595 struct delayed_work adv_instance_expire;
596
597 struct idr adv_monitors_idr;
598 unsigned int adv_monitors_cnt;
599
600 __u8 irk[16];
601 __u32 rpa_timeout;
602 struct delayed_work rpa_expired;
603 bdaddr_t rpa;
604
605 struct delayed_work mesh_send_done;
606
607 enum {
608 INTERLEAVE_SCAN_NONE,
609 INTERLEAVE_SCAN_NO_FILTER,
610 INTERLEAVE_SCAN_ALLOWLIST
611 } interleave_scan_state;
612
613 struct delayed_work interleave_scan;
614
615 struct list_head monitored_devices;
616 bool advmon_pend_notify;
617
618 #if IS_ENABLED(CONFIG_BT_LEDS)
619 struct led_trigger *power_led;
620 #endif
621
622 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
623 __u16 msft_opcode;
624 void *msft_data;
625 bool msft_curve_validity;
626 #endif
627
628 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
629 bool aosp_capable;
630 bool aosp_quality_report;
631 #endif
632
633 int (*open)(struct hci_dev *hdev);
634 int (*close)(struct hci_dev *hdev);
635 int (*flush)(struct hci_dev *hdev);
636 int (*setup)(struct hci_dev *hdev);
637 int (*shutdown)(struct hci_dev *hdev);
638 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
639 void (*notify)(struct hci_dev *hdev, unsigned int evt);
640 void (*hw_error)(struct hci_dev *hdev, u8 code);
641 int (*post_init)(struct hci_dev *hdev);
642 int (*set_diag)(struct hci_dev *hdev, bool enable);
643 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
644 void (*cmd_timeout)(struct hci_dev *hdev);
645 void (*reset)(struct hci_dev *hdev);
646 bool (*wakeup)(struct hci_dev *hdev);
647 int (*set_quality_report)(struct hci_dev *hdev, bool enable);
648 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
649 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
650 struct bt_codec *codec, __u8 *vnd_len,
651 __u8 **vnd_data);
652 };
653
654 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
655
656 enum conn_reasons {
657 CONN_REASON_PAIR_DEVICE,
658 CONN_REASON_L2CAP_CHAN,
659 CONN_REASON_SCO_CONNECT,
660 CONN_REASON_ISO_CONNECT,
661 };
662
663 struct hci_conn {
664 struct list_head list;
665
666 atomic_t refcnt;
667
668 bdaddr_t dst;
669 __u8 dst_type;
670 bdaddr_t src;
671 __u8 src_type;
672 bdaddr_t init_addr;
673 __u8 init_addr_type;
674 bdaddr_t resp_addr;
675 __u8 resp_addr_type;
676 __u8 adv_instance;
677 __u16 handle;
678 __u16 sync_handle;
679 __u16 state;
680 __u16 mtu;
681 __u8 mode;
682 __u8 type;
683 __u8 role;
684 bool out;
685 __u8 attempt;
686 __u8 dev_class[3];
687 __u8 features[HCI_MAX_PAGES][8];
688 __u16 pkt_type;
689 __u16 link_policy;
690 __u8 key_type;
691 __u8 auth_type;
692 __u8 sec_level;
693 __u8 pending_sec_level;
694 __u8 pin_length;
695 __u8 enc_key_size;
696 __u8 io_capability;
697 __u32 passkey_notify;
698 __u8 passkey_entered;
699 __u16 disc_timeout;
700 __u16 conn_timeout;
701 __u16 setting;
702 __u16 auth_payload_timeout;
703 __u16 le_conn_min_interval;
704 __u16 le_conn_max_interval;
705 __u16 le_conn_interval;
706 __u16 le_conn_latency;
707 __u16 le_supv_timeout;
708 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
709 __u8 le_adv_data_len;
710 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN];
711 __u16 le_per_adv_data_len;
712 __u16 le_per_adv_data_offset;
713 __u8 le_adv_phy;
714 __u8 le_adv_sec_phy;
715 __u8 le_tx_phy;
716 __u8 le_rx_phy;
717 __s8 rssi;
718 __s8 tx_power;
719 __s8 max_tx_power;
720 struct bt_iso_qos iso_qos;
721 unsigned long flags;
722
723 enum conn_reasons conn_reason;
724 __u8 abort_reason;
725
726 __u32 clock;
727 __u16 clock_accuracy;
728
729 unsigned long conn_info_timestamp;
730
731 __u8 remote_cap;
732 __u8 remote_auth;
733 __u8 remote_id;
734
735 unsigned int sent;
736
737 struct sk_buff_head data_q;
738 struct list_head chan_list;
739
740 struct delayed_work disc_work;
741 struct delayed_work auto_accept_work;
742 struct delayed_work idle_work;
743 struct delayed_work le_conn_timeout;
744
745 struct device dev;
746 struct dentry *debugfs;
747
748 struct hci_dev *hdev;
749 void *l2cap_data;
750 void *sco_data;
751 void *iso_data;
752
753 struct list_head link_list;
754 struct hci_conn *parent;
755 struct hci_link *link;
756
757 struct bt_codec codec;
758
759 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
760 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
761 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
762
763 void (*cleanup)(struct hci_conn *conn);
764 };
765
766 struct hci_link {
767 struct list_head list;
768 struct hci_conn *conn;
769 };
770
771 struct hci_chan {
772 struct list_head list;
773 __u16 handle;
774 struct hci_conn *conn;
775 struct sk_buff_head data_q;
776 unsigned int sent;
777 __u8 state;
778 };
779
780 struct hci_conn_params {
781 struct list_head list;
782 struct list_head action;
783
784 bdaddr_t addr;
785 u8 addr_type;
786
787 u16 conn_min_interval;
788 u16 conn_max_interval;
789 u16 conn_latency;
790 u16 supervision_timeout;
791
792 enum {
793 HCI_AUTO_CONN_DISABLED,
794 HCI_AUTO_CONN_REPORT,
795 HCI_AUTO_CONN_DIRECT,
796 HCI_AUTO_CONN_ALWAYS,
797 HCI_AUTO_CONN_LINK_LOSS,
798 HCI_AUTO_CONN_EXPLICIT,
799 } auto_connect;
800
801 struct hci_conn *conn;
802 bool explicit_connect;
803 /* Accessed without hdev->lock: */
804 hci_conn_flags_t flags;
805 u8 privacy_mode;
806 };
807
808 extern struct list_head hci_dev_list;
809 extern struct list_head hci_cb_list;
810 extern rwlock_t hci_dev_list_lock;
811 extern struct mutex hci_cb_list_lock;
812
813 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
814 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
815 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
816 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
817 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
818 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
819 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
820
821 #define hci_dev_clear_volatile_flags(hdev) \
822 do { \
823 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
824 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
825 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
826 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
827 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
828 } while (0)
829
830 #define hci_dev_le_state_simultaneous(hdev) \
831 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
832 (hdev->le_states[4] & 0x08) && /* Central */ \
833 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
834 (hdev->le_states[3] & 0x10)) /* Simultaneous */
835
836 /* ----- HCI interface to upper protocols ----- */
837 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
838 int l2cap_disconn_ind(struct hci_conn *hcon);
839 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
840
841 #if IS_ENABLED(CONFIG_BT_BREDR)
842 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
843 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
844 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)845 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
846 __u8 *flags)
847 {
848 return 0;
849 }
850
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)851 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
852 {
853 }
854 #endif
855
856 #if IS_ENABLED(CONFIG_BT_LE)
857 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
858 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
859 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)860 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
861 __u8 *flags)
862 {
863 return 0;
864 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)865 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
866 u16 flags)
867 {
868 }
869 #endif
870
871 /* ----- Inquiry cache ----- */
872 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
873 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
874
discovery_init(struct hci_dev * hdev)875 static inline void discovery_init(struct hci_dev *hdev)
876 {
877 hdev->discovery.state = DISCOVERY_STOPPED;
878 INIT_LIST_HEAD(&hdev->discovery.all);
879 INIT_LIST_HEAD(&hdev->discovery.unknown);
880 INIT_LIST_HEAD(&hdev->discovery.resolve);
881 hdev->discovery.report_invalid_rssi = true;
882 hdev->discovery.rssi = HCI_RSSI_INVALID;
883 }
884
hci_discovery_filter_clear(struct hci_dev * hdev)885 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
886 {
887 hdev->discovery.result_filtering = false;
888 hdev->discovery.report_invalid_rssi = true;
889 hdev->discovery.rssi = HCI_RSSI_INVALID;
890 hdev->discovery.uuid_count = 0;
891 kfree(hdev->discovery.uuids);
892 hdev->discovery.uuids = NULL;
893 hdev->discovery.scan_start = 0;
894 hdev->discovery.scan_duration = 0;
895 }
896
897 bool hci_discovery_active(struct hci_dev *hdev);
898
899 void hci_discovery_set_state(struct hci_dev *hdev, int state);
900
inquiry_cache_empty(struct hci_dev * hdev)901 static inline int inquiry_cache_empty(struct hci_dev *hdev)
902 {
903 return list_empty(&hdev->discovery.all);
904 }
905
inquiry_cache_age(struct hci_dev * hdev)906 static inline long inquiry_cache_age(struct hci_dev *hdev)
907 {
908 struct discovery_state *c = &hdev->discovery;
909 return jiffies - c->timestamp;
910 }
911
inquiry_entry_age(struct inquiry_entry * e)912 static inline long inquiry_entry_age(struct inquiry_entry *e)
913 {
914 return jiffies - e->timestamp;
915 }
916
917 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
918 bdaddr_t *bdaddr);
919 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
920 bdaddr_t *bdaddr);
921 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
922 bdaddr_t *bdaddr,
923 int state);
924 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
925 struct inquiry_entry *ie);
926 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
927 bool name_known);
928 void hci_inquiry_cache_flush(struct hci_dev *hdev);
929
930 /* ----- HCI Connections ----- */
931 enum {
932 HCI_CONN_AUTH_PEND,
933 HCI_CONN_ENCRYPT_PEND,
934 HCI_CONN_RSWITCH_PEND,
935 HCI_CONN_MODE_CHANGE_PEND,
936 HCI_CONN_SCO_SETUP_PEND,
937 HCI_CONN_MGMT_CONNECTED,
938 HCI_CONN_SSP_ENABLED,
939 HCI_CONN_SC_ENABLED,
940 HCI_CONN_AES_CCM,
941 HCI_CONN_POWER_SAVE,
942 HCI_CONN_FLUSH_KEY,
943 HCI_CONN_ENCRYPT,
944 HCI_CONN_AUTH,
945 HCI_CONN_SECURE,
946 HCI_CONN_FIPS,
947 HCI_CONN_STK_ENCRYPT,
948 HCI_CONN_AUTH_INITIATOR,
949 HCI_CONN_DROP,
950 HCI_CONN_CANCEL,
951 HCI_CONN_PARAM_REMOVAL_PEND,
952 HCI_CONN_NEW_LINK_KEY,
953 HCI_CONN_SCANNING,
954 HCI_CONN_AUTH_FAILURE,
955 HCI_CONN_PER_ADV,
956 HCI_CONN_BIG_CREATED,
957 HCI_CONN_CREATE_CIS,
958 HCI_CONN_BIG_SYNC,
959 HCI_CONN_BIG_SYNC_FAILED,
960 HCI_CONN_PA_SYNC,
961 HCI_CONN_PA_SYNC_FAILED,
962 };
963
hci_conn_ssp_enabled(struct hci_conn * conn)964 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
965 {
966 struct hci_dev *hdev = conn->hdev;
967 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
968 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
969 }
970
hci_conn_sc_enabled(struct hci_conn * conn)971 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
972 {
973 struct hci_dev *hdev = conn->hdev;
974 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
975 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
976 }
977
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)978 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
979 {
980 struct hci_conn_hash *h = &hdev->conn_hash;
981 list_add_tail_rcu(&c->list, &h->list);
982 switch (c->type) {
983 case ACL_LINK:
984 h->acl_num++;
985 break;
986 case LE_LINK:
987 h->le_num++;
988 if (c->role == HCI_ROLE_SLAVE)
989 h->le_num_peripheral++;
990 break;
991 case SCO_LINK:
992 case ESCO_LINK:
993 h->sco_num++;
994 break;
995 case ISO_LINK:
996 h->iso_num++;
997 break;
998 }
999 }
1000
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)1001 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1002 {
1003 struct hci_conn_hash *h = &hdev->conn_hash;
1004
1005 list_del_rcu(&c->list);
1006 synchronize_rcu();
1007
1008 switch (c->type) {
1009 case ACL_LINK:
1010 h->acl_num--;
1011 break;
1012 case LE_LINK:
1013 h->le_num--;
1014 if (c->role == HCI_ROLE_SLAVE)
1015 h->le_num_peripheral--;
1016 break;
1017 case SCO_LINK:
1018 case ESCO_LINK:
1019 h->sco_num--;
1020 break;
1021 case ISO_LINK:
1022 h->iso_num--;
1023 break;
1024 }
1025 }
1026
hci_conn_num(struct hci_dev * hdev,__u8 type)1027 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1028 {
1029 struct hci_conn_hash *h = &hdev->conn_hash;
1030 switch (type) {
1031 case ACL_LINK:
1032 return h->acl_num;
1033 case LE_LINK:
1034 return h->le_num;
1035 case SCO_LINK:
1036 case ESCO_LINK:
1037 return h->sco_num;
1038 case ISO_LINK:
1039 return h->iso_num;
1040 default:
1041 return 0;
1042 }
1043 }
1044
hci_conn_count(struct hci_dev * hdev)1045 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1046 {
1047 struct hci_conn_hash *c = &hdev->conn_hash;
1048
1049 return c->acl_num + c->sco_num + c->le_num + c->iso_num;
1050 }
1051
hci_conn_valid(struct hci_dev * hdev,struct hci_conn * conn)1052 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn)
1053 {
1054 struct hci_conn_hash *h = &hdev->conn_hash;
1055 struct hci_conn *c;
1056
1057 rcu_read_lock();
1058
1059 list_for_each_entry_rcu(c, &h->list, list) {
1060 if (c == conn) {
1061 rcu_read_unlock();
1062 return true;
1063 }
1064 }
1065 rcu_read_unlock();
1066
1067 return false;
1068 }
1069
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)1070 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1071 {
1072 struct hci_conn_hash *h = &hdev->conn_hash;
1073 struct hci_conn *c;
1074 __u8 type = INVALID_LINK;
1075
1076 rcu_read_lock();
1077
1078 list_for_each_entry_rcu(c, &h->list, list) {
1079 if (c->handle == handle) {
1080 type = c->type;
1081 break;
1082 }
1083 }
1084
1085 rcu_read_unlock();
1086
1087 return type;
1088 }
1089
hci_conn_hash_lookup_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 bis)1090 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1091 bdaddr_t *ba, __u8 bis)
1092 {
1093 struct hci_conn_hash *h = &hdev->conn_hash;
1094 struct hci_conn *c;
1095
1096 rcu_read_lock();
1097
1098 list_for_each_entry_rcu(c, &h->list, list) {
1099 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1100 continue;
1101
1102 if (c->iso_qos.bcast.bis == bis) {
1103 rcu_read_unlock();
1104 return c;
1105 }
1106 }
1107 rcu_read_unlock();
1108
1109 return NULL;
1110 }
1111
1112 static inline struct hci_conn *
hci_conn_hash_lookup_per_adv_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 big,__u8 bis)1113 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1114 bdaddr_t *ba,
1115 __u8 big, __u8 bis)
1116 {
1117 struct hci_conn_hash *h = &hdev->conn_hash;
1118 struct hci_conn *c;
1119
1120 rcu_read_lock();
1121
1122 list_for_each_entry_rcu(c, &h->list, list) {
1123 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1124 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1125 continue;
1126
1127 if (c->iso_qos.bcast.big == big &&
1128 c->iso_qos.bcast.bis == bis) {
1129 rcu_read_unlock();
1130 return c;
1131 }
1132 }
1133 rcu_read_unlock();
1134
1135 return NULL;
1136 }
1137
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)1138 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1139 __u16 handle)
1140 {
1141 struct hci_conn_hash *h = &hdev->conn_hash;
1142 struct hci_conn *c;
1143
1144 rcu_read_lock();
1145
1146 list_for_each_entry_rcu(c, &h->list, list) {
1147 if (c->handle == handle) {
1148 rcu_read_unlock();
1149 return c;
1150 }
1151 }
1152 rcu_read_unlock();
1153
1154 return NULL;
1155 }
1156
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)1157 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1158 __u8 type, bdaddr_t *ba)
1159 {
1160 struct hci_conn_hash *h = &hdev->conn_hash;
1161 struct hci_conn *c;
1162
1163 rcu_read_lock();
1164
1165 list_for_each_entry_rcu(c, &h->list, list) {
1166 if (c->type == type && !bacmp(&c->dst, ba)) {
1167 rcu_read_unlock();
1168 return c;
1169 }
1170 }
1171
1172 rcu_read_unlock();
1173
1174 return NULL;
1175 }
1176
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1177 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1178 bdaddr_t *ba,
1179 __u8 ba_type)
1180 {
1181 struct hci_conn_hash *h = &hdev->conn_hash;
1182 struct hci_conn *c;
1183
1184 rcu_read_lock();
1185
1186 list_for_each_entry_rcu(c, &h->list, list) {
1187 if (c->type != LE_LINK)
1188 continue;
1189
1190 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1191 rcu_read_unlock();
1192 return c;
1193 }
1194 }
1195
1196 rcu_read_unlock();
1197
1198 return NULL;
1199 }
1200
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1201 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1202 bdaddr_t *ba,
1203 __u8 ba_type,
1204 __u8 cig,
1205 __u8 id)
1206 {
1207 struct hci_conn_hash *h = &hdev->conn_hash;
1208 struct hci_conn *c;
1209
1210 rcu_read_lock();
1211
1212 list_for_each_entry_rcu(c, &h->list, list) {
1213 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1214 continue;
1215
1216 /* Match CIG ID if set */
1217 if (cig != c->iso_qos.ucast.cig)
1218 continue;
1219
1220 /* Match CIS ID if set */
1221 if (id != c->iso_qos.ucast.cis)
1222 continue;
1223
1224 /* Match destination address if set */
1225 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1226 rcu_read_unlock();
1227 return c;
1228 }
1229 }
1230
1231 rcu_read_unlock();
1232
1233 return NULL;
1234 }
1235
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1236 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1237 __u8 handle)
1238 {
1239 struct hci_conn_hash *h = &hdev->conn_hash;
1240 struct hci_conn *c;
1241
1242 rcu_read_lock();
1243
1244 list_for_each_entry_rcu(c, &h->list, list) {
1245 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1246 continue;
1247
1248 if (handle == c->iso_qos.ucast.cig) {
1249 rcu_read_unlock();
1250 return c;
1251 }
1252 }
1253
1254 rcu_read_unlock();
1255
1256 return NULL;
1257 }
1258
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1259 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1260 __u8 handle)
1261 {
1262 struct hci_conn_hash *h = &hdev->conn_hash;
1263 struct hci_conn *c;
1264
1265 rcu_read_lock();
1266
1267 list_for_each_entry_rcu(c, &h->list, list) {
1268 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1269 continue;
1270
1271 if (handle == c->iso_qos.bcast.big) {
1272 rcu_read_unlock();
1273 return c;
1274 }
1275 }
1276
1277 rcu_read_unlock();
1278
1279 return NULL;
1280 }
1281
1282 static inline struct hci_conn *
hci_conn_hash_lookup_big_state(struct hci_dev * hdev,__u8 handle,__u16 state)1283 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
1284 {
1285 struct hci_conn_hash *h = &hdev->conn_hash;
1286 struct hci_conn *c;
1287
1288 rcu_read_lock();
1289
1290 list_for_each_entry_rcu(c, &h->list, list) {
1291 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK ||
1292 c->state != state)
1293 continue;
1294
1295 if (handle == c->iso_qos.bcast.big) {
1296 rcu_read_unlock();
1297 return c;
1298 }
1299 }
1300
1301 rcu_read_unlock();
1302
1303 return NULL;
1304 }
1305
1306 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1307 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1308 {
1309 struct hci_conn_hash *h = &hdev->conn_hash;
1310 struct hci_conn *c;
1311
1312 rcu_read_lock();
1313
1314 list_for_each_entry_rcu(c, &h->list, list) {
1315 if (c->type != ISO_LINK ||
1316 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1317 continue;
1318
1319 if (c->iso_qos.bcast.big == big) {
1320 rcu_read_unlock();
1321 return c;
1322 }
1323 }
1324 rcu_read_unlock();
1325
1326 return NULL;
1327 }
1328
1329 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1330 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1331 {
1332 struct hci_conn_hash *h = &hdev->conn_hash;
1333 struct hci_conn *c;
1334
1335 rcu_read_lock();
1336
1337 list_for_each_entry_rcu(c, &h->list, list) {
1338 if (c->type != ISO_LINK)
1339 continue;
1340
1341 if (c->sync_handle == sync_handle) {
1342 rcu_read_unlock();
1343 return c;
1344 }
1345 }
1346 rcu_read_unlock();
1347
1348 return NULL;
1349 }
1350
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1351 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1352 __u8 type, __u16 state)
1353 {
1354 struct hci_conn_hash *h = &hdev->conn_hash;
1355 struct hci_conn *c;
1356
1357 rcu_read_lock();
1358
1359 list_for_each_entry_rcu(c, &h->list, list) {
1360 if (c->type == type && c->state == state) {
1361 rcu_read_unlock();
1362 return c;
1363 }
1364 }
1365
1366 rcu_read_unlock();
1367
1368 return NULL;
1369 }
1370
1371 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)1372 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1373 hci_conn_func_t func, __u8 type,
1374 __u16 state, void *data)
1375 {
1376 struct hci_conn_hash *h = &hdev->conn_hash;
1377 struct hci_conn *c;
1378
1379 if (!func)
1380 return;
1381
1382 rcu_read_lock();
1383
1384 list_for_each_entry_rcu(c, &h->list, list) {
1385 if (c->type == type && c->state == state)
1386 func(c, data);
1387 }
1388
1389 rcu_read_unlock();
1390 }
1391
hci_conn_hash_list_flag(struct hci_dev * hdev,hci_conn_func_t func,__u8 type,__u8 flag,void * data)1392 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev,
1393 hci_conn_func_t func, __u8 type,
1394 __u8 flag, void *data)
1395 {
1396 struct hci_conn_hash *h = &hdev->conn_hash;
1397 struct hci_conn *c;
1398
1399 if (!func)
1400 return;
1401
1402 rcu_read_lock();
1403
1404 list_for_each_entry_rcu(c, &h->list, list) {
1405 if (c->type == type && test_bit(flag, &c->flags))
1406 func(c, data);
1407 }
1408
1409 rcu_read_unlock();
1410 }
1411
hci_lookup_le_connect(struct hci_dev * hdev)1412 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1413 {
1414 struct hci_conn_hash *h = &hdev->conn_hash;
1415 struct hci_conn *c;
1416
1417 rcu_read_lock();
1418
1419 list_for_each_entry_rcu(c, &h->list, list) {
1420 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1421 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1422 rcu_read_unlock();
1423 return c;
1424 }
1425 }
1426
1427 rcu_read_unlock();
1428
1429 return NULL;
1430 }
1431
1432 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1433 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1434 {
1435 struct hci_conn_hash *h = &hdev->conn_hash;
1436 struct hci_conn *c;
1437
1438 rcu_read_lock();
1439
1440 list_for_each_entry_rcu(c, &h->list, list) {
1441 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1442 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1443 rcu_read_unlock();
1444 return true;
1445 }
1446 }
1447
1448 rcu_read_unlock();
1449
1450 return false;
1451 }
1452
1453 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1454 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1455 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1456 bool hci_iso_setup_path(struct hci_conn *conn);
1457 int hci_le_create_cis_pending(struct hci_dev *hdev);
1458 int hci_conn_check_create_cis(struct hci_conn *conn);
1459
1460 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1461 u8 role, u16 handle);
1462 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1463 bdaddr_t *dst, u8 role);
1464 void hci_conn_del(struct hci_conn *conn);
1465 void hci_conn_hash_flush(struct hci_dev *hdev);
1466
1467 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1468 void hci_chan_del(struct hci_chan *chan);
1469 void hci_chan_list_flush(struct hci_conn *conn);
1470 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1471
1472 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1473 u8 dst_type, u8 sec_level,
1474 u16 conn_timeout,
1475 enum conn_reasons conn_reason);
1476 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1477 u8 dst_type, bool dst_resolved, u8 sec_level,
1478 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy);
1479 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1480 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1481 u8 sec_level, u8 auth_type,
1482 enum conn_reasons conn_reason, u16 timeout);
1483 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1484 __u16 setting, struct bt_codec *codec,
1485 u16 timeout);
1486 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1487 __u8 dst_type, struct bt_iso_qos *qos);
1488 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1489 struct bt_iso_qos *qos,
1490 __u8 base_len, __u8 *base);
1491 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1492 __u8 dst_type, struct bt_iso_qos *qos);
1493 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1494 __u8 dst_type, struct bt_iso_qos *qos,
1495 __u8 data_len, __u8 *data);
1496 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
1497 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
1498 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1499 struct bt_iso_qos *qos,
1500 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1501 int hci_conn_check_link_mode(struct hci_conn *conn);
1502 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1503 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1504 bool initiator);
1505 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1506
1507 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1508
1509 void hci_conn_failed(struct hci_conn *conn, u8 status);
1510 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1511
1512 /*
1513 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1514 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1515 * working or anything else. They just guarantee that the object is available
1516 * and can be dereferenced. So you can use its locks, local variables and any
1517 * other constant data.
1518 * Before accessing runtime data, you _must_ lock the object and then check that
1519 * it is still running. As soon as you release the locks, the connection might
1520 * get dropped, though.
1521 *
1522 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1523 * how long the underlying connection is held. So every channel that runs on the
1524 * hci_conn object calls this to prevent the connection from disappearing. As
1525 * long as you hold a device, you must also guarantee that you have a valid
1526 * reference to the device via hci_conn_get() (or the initial reference from
1527 * hci_conn_add()).
1528 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1529 * break because nobody cares for that. But this means, we cannot use
1530 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1531 */
1532
hci_conn_get(struct hci_conn * conn)1533 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1534 {
1535 get_device(&conn->dev);
1536 return conn;
1537 }
1538
hci_conn_put(struct hci_conn * conn)1539 static inline void hci_conn_put(struct hci_conn *conn)
1540 {
1541 put_device(&conn->dev);
1542 }
1543
hci_conn_hold(struct hci_conn * conn)1544 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1545 {
1546 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1547
1548 atomic_inc(&conn->refcnt);
1549 cancel_delayed_work(&conn->disc_work);
1550
1551 return conn;
1552 }
1553
hci_conn_drop(struct hci_conn * conn)1554 static inline void hci_conn_drop(struct hci_conn *conn)
1555 {
1556 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1557
1558 if (atomic_dec_and_test(&conn->refcnt)) {
1559 unsigned long timeo;
1560
1561 switch (conn->type) {
1562 case ACL_LINK:
1563 case LE_LINK:
1564 cancel_delayed_work(&conn->idle_work);
1565 if (conn->state == BT_CONNECTED) {
1566 timeo = conn->disc_timeout;
1567 if (!conn->out)
1568 timeo *= 2;
1569 } else {
1570 timeo = 0;
1571 }
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 #define read_key_size_capable(dev) \
1868 ((dev)->commands[20] & 0x10 && \
1869 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1870
1871 /* Use enhanced synchronous connection if command is supported and its quirk
1872 * has not been set.
1873 */
1874 #define enhanced_sync_conn_capable(dev) \
1875 (((dev)->commands[29] & 0x08) && \
1876 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1877
1878 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1879 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1880 ((dev)->commands[37] & 0x40) && \
1881 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1882
1883 /* Use ext create connection if command is supported */
1884 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1885
1886 /* Extended advertising support */
1887 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1888
1889 /* Maximum advertising length */
1890 #define max_adv_len(dev) \
1891 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1892
1893 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1894 *
1895 * C24: Mandatory if the LE Controller supports Connection State and either
1896 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1897 */
1898 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1899 ext_adv_capable(dev))
1900
1901 /* Periodic advertising support */
1902 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1903
1904 /* CIS Master/Slave and BIS support */
1905 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1906 #define cis_capable(dev) \
1907 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1908 #define cis_central_capable(dev) \
1909 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1910 #define cis_peripheral_capable(dev) \
1911 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1912 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1913 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1914
1915 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1916 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1917
1918 /* ----- HCI protocols ----- */
1919 #define HCI_PROTO_DEFER 0x01
1920
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1921 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1922 __u8 type, __u8 *flags)
1923 {
1924 switch (type) {
1925 case ACL_LINK:
1926 return l2cap_connect_ind(hdev, bdaddr);
1927
1928 case SCO_LINK:
1929 case ESCO_LINK:
1930 return sco_connect_ind(hdev, bdaddr, flags);
1931
1932 case ISO_LINK:
1933 return iso_connect_ind(hdev, bdaddr, flags);
1934
1935 default:
1936 BT_ERR("unknown link type %d", type);
1937 return -EINVAL;
1938 }
1939 }
1940
hci_proto_disconn_ind(struct hci_conn * conn)1941 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1942 {
1943 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1944 return HCI_ERROR_REMOTE_USER_TERM;
1945
1946 return l2cap_disconn_ind(conn);
1947 }
1948
1949 /* ----- HCI callbacks ----- */
1950 struct hci_cb {
1951 struct list_head list;
1952
1953 char *name;
1954
1955 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1956 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1957 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1958 __u8 encrypt);
1959 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1960 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1961 };
1962
hci_connect_cfm(struct hci_conn * conn,__u8 status)1963 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1964 {
1965 struct hci_cb *cb;
1966
1967 mutex_lock(&hci_cb_list_lock);
1968 list_for_each_entry(cb, &hci_cb_list, list) {
1969 if (cb->connect_cfm)
1970 cb->connect_cfm(conn, status);
1971 }
1972 mutex_unlock(&hci_cb_list_lock);
1973
1974 if (conn->connect_cfm_cb)
1975 conn->connect_cfm_cb(conn, status);
1976 }
1977
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1978 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1979 {
1980 struct hci_cb *cb;
1981
1982 mutex_lock(&hci_cb_list_lock);
1983 list_for_each_entry(cb, &hci_cb_list, list) {
1984 if (cb->disconn_cfm)
1985 cb->disconn_cfm(conn, reason);
1986 }
1987 mutex_unlock(&hci_cb_list_lock);
1988
1989 if (conn->disconn_cfm_cb)
1990 conn->disconn_cfm_cb(conn, reason);
1991 }
1992
hci_auth_cfm(struct hci_conn * conn,__u8 status)1993 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1994 {
1995 struct hci_cb *cb;
1996 __u8 encrypt;
1997
1998 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1999 return;
2000
2001 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2002
2003 mutex_lock(&hci_cb_list_lock);
2004 list_for_each_entry(cb, &hci_cb_list, list) {
2005 if (cb->security_cfm)
2006 cb->security_cfm(conn, status, encrypt);
2007 }
2008 mutex_unlock(&hci_cb_list_lock);
2009
2010 if (conn->security_cfm_cb)
2011 conn->security_cfm_cb(conn, status);
2012 }
2013
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2014 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2015 {
2016 struct hci_cb *cb;
2017 __u8 encrypt;
2018
2019 if (conn->state == BT_CONFIG) {
2020 if (!status)
2021 conn->state = BT_CONNECTED;
2022
2023 hci_connect_cfm(conn, status);
2024 hci_conn_drop(conn);
2025 return;
2026 }
2027
2028 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2029 encrypt = 0x00;
2030 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2031 encrypt = 0x02;
2032 else
2033 encrypt = 0x01;
2034
2035 if (!status) {
2036 if (conn->sec_level == BT_SECURITY_SDP)
2037 conn->sec_level = BT_SECURITY_LOW;
2038
2039 if (conn->pending_sec_level > conn->sec_level)
2040 conn->sec_level = conn->pending_sec_level;
2041 }
2042
2043 mutex_lock(&hci_cb_list_lock);
2044 list_for_each_entry(cb, &hci_cb_list, list) {
2045 if (cb->security_cfm)
2046 cb->security_cfm(conn, status, encrypt);
2047 }
2048 mutex_unlock(&hci_cb_list_lock);
2049
2050 if (conn->security_cfm_cb)
2051 conn->security_cfm_cb(conn, status);
2052 }
2053
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2054 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2055 {
2056 struct hci_cb *cb;
2057
2058 mutex_lock(&hci_cb_list_lock);
2059 list_for_each_entry(cb, &hci_cb_list, list) {
2060 if (cb->key_change_cfm)
2061 cb->key_change_cfm(conn, status);
2062 }
2063 mutex_unlock(&hci_cb_list_lock);
2064 }
2065
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2066 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2067 __u8 role)
2068 {
2069 struct hci_cb *cb;
2070
2071 mutex_lock(&hci_cb_list_lock);
2072 list_for_each_entry(cb, &hci_cb_list, list) {
2073 if (cb->role_switch_cfm)
2074 cb->role_switch_cfm(conn, status, role);
2075 }
2076 mutex_unlock(&hci_cb_list_lock);
2077 }
2078
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2079 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2080 {
2081 if (addr_type != ADDR_LE_DEV_RANDOM)
2082 return false;
2083
2084 if ((bdaddr->b[5] & 0xc0) == 0x40)
2085 return true;
2086
2087 return false;
2088 }
2089
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2090 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2091 {
2092 if (addr_type == ADDR_LE_DEV_PUBLIC)
2093 return true;
2094
2095 /* Check for Random Static address type */
2096 if ((addr->b[5] & 0xc0) == 0xc0)
2097 return true;
2098
2099 return false;
2100 }
2101
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2102 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2103 bdaddr_t *bdaddr, u8 addr_type)
2104 {
2105 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2106 return NULL;
2107
2108 return hci_find_irk_by_rpa(hdev, bdaddr);
2109 }
2110
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2111 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2112 u16 to_multiplier)
2113 {
2114 u16 max_latency;
2115
2116 if (min > max) {
2117 BT_WARN("min %d > max %d", min, max);
2118 return -EINVAL;
2119 }
2120
2121 if (min < 6) {
2122 BT_WARN("min %d < 6", min);
2123 return -EINVAL;
2124 }
2125
2126 if (max > 3200) {
2127 BT_WARN("max %d > 3200", max);
2128 return -EINVAL;
2129 }
2130
2131 if (to_multiplier < 10) {
2132 BT_WARN("to_multiplier %d < 10", to_multiplier);
2133 return -EINVAL;
2134 }
2135
2136 if (to_multiplier > 3200) {
2137 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2138 return -EINVAL;
2139 }
2140
2141 if (max >= to_multiplier * 8) {
2142 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2143 return -EINVAL;
2144 }
2145
2146 max_latency = (to_multiplier * 4 / max) - 1;
2147 if (latency > 499) {
2148 BT_WARN("latency %d > 499", latency);
2149 return -EINVAL;
2150 }
2151
2152 if (latency > max_latency) {
2153 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2154 return -EINVAL;
2155 }
2156
2157 return 0;
2158 }
2159
2160 int hci_register_cb(struct hci_cb *hcb);
2161 int hci_unregister_cb(struct hci_cb *hcb);
2162
2163 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2164 const void *param);
2165
2166 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2167 const void *param);
2168 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2169 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2170 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2171
2172 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2173 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2174
2175 u32 hci_conn_get_phy(struct hci_conn *conn);
2176
2177 /* ----- HCI Sockets ----- */
2178 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2179 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2180 int flag, struct sock *skip_sk);
2181 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2182 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2183 void *data, u16 data_len, ktime_t tstamp,
2184 int flag, struct sock *skip_sk);
2185
2186 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2187
2188 #define HCI_MGMT_VAR_LEN BIT(0)
2189 #define HCI_MGMT_NO_HDEV BIT(1)
2190 #define HCI_MGMT_UNTRUSTED BIT(2)
2191 #define HCI_MGMT_UNCONFIGURED BIT(3)
2192 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2193
2194 struct hci_mgmt_handler {
2195 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2196 u16 data_len);
2197 size_t data_len;
2198 unsigned long flags;
2199 };
2200
2201 struct hci_mgmt_chan {
2202 struct list_head list;
2203 unsigned short channel;
2204 size_t handler_count;
2205 const struct hci_mgmt_handler *handlers;
2206 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2207 };
2208
2209 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2210 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2211
2212 /* Management interface */
2213 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2214 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2215 BIT(BDADDR_LE_RANDOM))
2216 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2217 BIT(BDADDR_LE_PUBLIC) | \
2218 BIT(BDADDR_LE_RANDOM))
2219
2220 /* These LE scan and inquiry parameters were chosen according to LE General
2221 * Discovery Procedure specification.
2222 */
2223 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */
2224 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */
2225 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */
2226 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */
2227 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */
2228 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */
2229 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */
2230 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */
2231 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */
2232 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */
2233 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */
2234 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */
2235 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */
2236 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */
2237 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */
2238 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */
2239 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2240 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2241 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2242 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2243 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2244 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2245 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2246 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2247 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2248 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2249 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2250 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2251
2252 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2253
2254 void mgmt_fill_version_info(void *ver);
2255 int mgmt_new_settings(struct hci_dev *hdev);
2256 void mgmt_index_added(struct hci_dev *hdev);
2257 void mgmt_index_removed(struct hci_dev *hdev);
2258 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2259 void mgmt_power_on(struct hci_dev *hdev, int err);
2260 void __mgmt_power_off(struct hci_dev *hdev);
2261 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2262 bool persistent);
2263 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2264 u8 *name, u8 name_len);
2265 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2266 u8 link_type, u8 addr_type, u8 reason,
2267 bool mgmt_connected);
2268 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2269 u8 link_type, u8 addr_type, u8 status);
2270 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2271 u8 addr_type, u8 status);
2272 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2273 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2274 u8 status);
2275 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2276 u8 status);
2277 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2278 u8 link_type, u8 addr_type, u32 value,
2279 u8 confirm_hint);
2280 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2281 u8 link_type, u8 addr_type, u8 status);
2282 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2283 u8 link_type, u8 addr_type, u8 status);
2284 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2285 u8 link_type, u8 addr_type);
2286 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2287 u8 link_type, u8 addr_type, u8 status);
2288 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2289 u8 link_type, u8 addr_type, u8 status);
2290 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2291 u8 link_type, u8 addr_type, u32 passkey,
2292 u8 entered);
2293 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2294 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2295 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2296 u8 status);
2297 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2298 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2299 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2300 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2301 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2302 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2303 u64 instant);
2304 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2305 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2306 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2307 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2308 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2309 u8 addr_type);
2310 bool mgmt_powering_down(struct hci_dev *hdev);
2311 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2312 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2313 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2314 bool persistent);
2315 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2316 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2317 u16 max_interval, u16 latency, u16 timeout);
2318 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2319 bool mgmt_get_connectable(struct hci_dev *hdev);
2320 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2321 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2322 u8 instance);
2323 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2324 u8 instance);
2325 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2326 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2327 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2328 bdaddr_t *bdaddr, u8 addr_type);
2329
2330 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2331 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2332 u16 to_multiplier);
2333 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2334 __u8 ltk[16], __u8 key_size);
2335
2336 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2337 u8 *bdaddr_type);
2338
2339 #define SCO_AIRMODE_MASK 0x0003
2340 #define SCO_AIRMODE_CVSD 0x0000
2341 #define SCO_AIRMODE_TRANSP 0x0003
2342
2343 #define LOCAL_CODEC_ACL_MASK BIT(0)
2344 #define LOCAL_CODEC_SCO_MASK BIT(1)
2345
2346 #define TRANSPORT_TYPE_MAX 0x04
2347
2348 #endif /* __HCI_CORE_H */
2349