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 #include <linux/srcu.h>
33
34 #include <net/bluetooth/hci.h>
35 #include <net/bluetooth/hci_drv.h>
36 #include <net/bluetooth/hci_sync.h>
37 #include <net/bluetooth/hci_sock.h>
38 #include <net/bluetooth/coredump.h>
39
40 /* HCI priority */
41 #define HCI_PRIO_MAX 7
42
43 /* HCI maximum id value */
44 #define HCI_MAX_ID 10000
45
46 /* HCI Core structures */
47 struct inquiry_data {
48 bdaddr_t bdaddr;
49 __u8 pscan_rep_mode;
50 __u8 pscan_period_mode;
51 __u8 pscan_mode;
52 __u8 dev_class[3];
53 __le16 clock_offset;
54 __s8 rssi;
55 __u8 ssp_mode;
56 };
57
58 struct inquiry_entry {
59 struct list_head all; /* inq_cache.all */
60 struct list_head list; /* unknown or resolve */
61 enum {
62 NAME_NOT_KNOWN,
63 NAME_NEEDED,
64 NAME_PENDING,
65 NAME_KNOWN,
66 } name_state;
67 __u32 timestamp;
68 struct inquiry_data data;
69 };
70
71 struct discovery_state {
72 int type;
73 enum {
74 DISCOVERY_STOPPED,
75 DISCOVERY_STARTING,
76 DISCOVERY_FINDING,
77 DISCOVERY_RESOLVING,
78 DISCOVERY_STOPPING,
79 } state;
80 struct list_head all; /* All devices found during inquiry */
81 struct list_head unknown; /* Name state not known */
82 struct list_head resolve; /* Name needs to be resolved */
83 __u32 timestamp;
84 bdaddr_t last_adv_addr;
85 u8 last_adv_addr_type;
86 s8 last_adv_rssi;
87 u32 last_adv_flags;
88 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH];
89 u8 last_adv_data_len;
90 bool report_invalid_rssi;
91 bool result_filtering;
92 bool limited;
93 s8 rssi;
94 u16 uuid_count;
95 u8 (*uuids)[16];
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 = BIT(0),
163 HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1),
164 HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(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 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 authenticated;
202 u8 type;
203 u8 enc_size;
204 __le16 ediv;
205 __le64 rand;
206 u8 val[16];
207 };
208
209 struct smp_irk {
210 struct list_head list;
211 struct rcu_head rcu;
212 bdaddr_t rpa;
213 bdaddr_t bdaddr;
214 u8 addr_type;
215 u8 val[16];
216 };
217
218 struct link_key {
219 struct list_head list;
220 struct rcu_head rcu;
221 bdaddr_t bdaddr;
222 u8 type;
223 u8 val[HCI_LINK_KEY_SIZE];
224 u8 pin_len;
225 };
226
227 struct oob_data {
228 struct list_head list;
229 bdaddr_t bdaddr;
230 u8 bdaddr_type;
231 u8 present;
232 u8 hash192[16];
233 u8 rand192[16];
234 u8 hash256[16];
235 u8 rand256[16];
236 };
237
238 struct adv_info {
239 struct list_head list;
240 bool enabled;
241 bool pending;
242 bool periodic;
243 __u8 mesh;
244 __u8 instance;
245 __u8 handle;
246 __u8 sid;
247 __u32 flags;
248 __u16 timeout;
249 __u16 remaining_time;
250 __u16 duration;
251 __u16 adv_data_len;
252 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
253 bool adv_data_changed;
254 __u16 scan_rsp_len;
255 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
256 bool scan_rsp_changed;
257 __u16 per_adv_data_len;
258 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
259 __s8 tx_power;
260 __u32 min_interval;
261 __u32 max_interval;
262 bdaddr_t random_addr;
263 bool rpa_expired;
264 struct delayed_work rpa_expired_cb;
265 };
266
267 struct tx_queue {
268 struct sk_buff_head queue;
269 unsigned int extra;
270 unsigned int tracked;
271 };
272
273 #define HCI_MAX_ADV_INSTANCES 5
274 #define HCI_DEFAULT_ADV_DURATION 2
275
276 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
277
278 #define DATA_CMP(_d1, _l1, _d2, _l2) \
279 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
280
281 #define ADV_DATA_CMP(_adv, _data, _len) \
282 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
283
284 #define SCAN_RSP_CMP(_adv, _data, _len) \
285 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
286
287 struct monitored_device {
288 struct list_head list;
289
290 bdaddr_t bdaddr;
291 __u8 addr_type;
292 __u16 handle;
293 bool notified;
294 };
295
296 struct adv_pattern {
297 struct list_head list;
298 __u8 ad_type;
299 __u8 offset;
300 __u8 length;
301 __u8 value[HCI_MAX_EXT_AD_LENGTH];
302 };
303
304 struct adv_rssi_thresholds {
305 __s8 low_threshold;
306 __s8 high_threshold;
307 __u16 low_threshold_timeout;
308 __u16 high_threshold_timeout;
309 __u8 sampling_period;
310 };
311
312 struct adv_monitor {
313 struct list_head patterns;
314 struct adv_rssi_thresholds rssi;
315 __u16 handle;
316
317 enum {
318 ADV_MONITOR_STATE_NOT_REGISTERED,
319 ADV_MONITOR_STATE_REGISTERED,
320 ADV_MONITOR_STATE_OFFLOADED
321 } state;
322 };
323
324 #define HCI_MIN_ADV_MONITOR_HANDLE 1
325 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
326 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
327 #define HCI_ADV_MONITOR_EXT_NONE 1
328 #define HCI_ADV_MONITOR_EXT_MSFT 2
329
330 #define HCI_MAX_SHORT_NAME_LENGTH 10
331
332 #define HCI_CONN_HANDLE_MAX 0x0eff
333 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX)
334
335 /* Min encryption key size to match with SMP */
336 #define HCI_MIN_ENC_KEY_SIZE 7
337
338 /* Default LE RPA expiry time, 15 minutes */
339 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
340
341 /* Default min/max age of connection information (1s/3s) */
342 #define DEFAULT_CONN_INFO_MIN_AGE 1000
343 #define DEFAULT_CONN_INFO_MAX_AGE 3000
344 /* Default authenticated payload timeout 30s */
345 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
346
347 #define HCI_MAX_PAGES 3
348
349 struct hci_dev {
350 struct list_head list;
351 struct srcu_struct srcu;
352 struct mutex lock;
353
354 struct ida unset_handle_ida;
355
356 const char *name;
357 unsigned long flags;
358 __u16 id;
359 __u8 bus;
360 bdaddr_t bdaddr;
361 bdaddr_t setup_addr;
362 bdaddr_t public_addr;
363 bdaddr_t random_addr;
364 bdaddr_t static_addr;
365 __u8 adv_addr_type;
366 __u8 dev_name[HCI_MAX_NAME_LENGTH];
367 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
368 __u8 eir[HCI_MAX_EIR_LENGTH];
369 __u16 appearance;
370 __u8 dev_class[3];
371 __u8 major_class;
372 __u8 minor_class;
373 __u8 max_page;
374 __u8 features[HCI_MAX_PAGES][8];
375 __u8 le_features[8];
376 __u8 le_accept_list_size;
377 __u8 le_resolv_list_size;
378 __u8 le_num_of_adv_sets;
379 __u8 le_states[8];
380 __u8 mesh_ad_types[16];
381 __u8 mesh_send_ref;
382 __u8 commands[64];
383 __u8 hci_ver;
384 __u16 hci_rev;
385 __u8 lmp_ver;
386 __u16 manufacturer;
387 __u16 lmp_subver;
388 __u16 voice_setting;
389 __u8 num_iac;
390 __u16 stored_max_keys;
391 __u16 stored_num_keys;
392 __u8 io_capability;
393 __s8 inq_tx_power;
394 __u8 err_data_reporting;
395 __u16 page_scan_interval;
396 __u16 page_scan_window;
397 __u8 page_scan_type;
398 __u8 le_adv_channel_map;
399 __u16 le_adv_min_interval;
400 __u16 le_adv_max_interval;
401 __u8 le_scan_type;
402 __u16 le_scan_interval;
403 __u16 le_scan_window;
404 __u16 le_scan_int_suspend;
405 __u16 le_scan_window_suspend;
406 __u16 le_scan_int_discovery;
407 __u16 le_scan_window_discovery;
408 __u16 le_scan_int_adv_monitor;
409 __u16 le_scan_window_adv_monitor;
410 __u16 le_scan_int_connect;
411 __u16 le_scan_window_connect;
412 __u16 le_conn_min_interval;
413 __u16 le_conn_max_interval;
414 __u16 le_conn_latency;
415 __u16 le_supv_timeout;
416 __u16 le_def_tx_len;
417 __u16 le_def_tx_time;
418 __u16 le_max_tx_len;
419 __u16 le_max_tx_time;
420 __u16 le_max_rx_len;
421 __u16 le_max_rx_time;
422 __u8 le_max_key_size;
423 __u8 le_min_key_size;
424 __u16 discov_interleaved_timeout;
425 __u16 conn_info_min_age;
426 __u16 conn_info_max_age;
427 __u16 auth_payload_timeout;
428 __u8 min_enc_key_size;
429 __u8 max_enc_key_size;
430 __u8 pairing_opts;
431 __u8 ssp_debug_mode;
432 __u8 hw_error_code;
433 __u32 clock;
434 __u16 advmon_allowlist_duration;
435 __u16 advmon_no_filter_duration;
436 __u8 enable_advmon_interleave_scan;
437
438 __u16 devid_source;
439 __u16 devid_vendor;
440 __u16 devid_product;
441 __u16 devid_version;
442
443 __u8 def_page_scan_type;
444 __u16 def_page_scan_int;
445 __u16 def_page_scan_window;
446 __u8 def_inq_scan_type;
447 __u16 def_inq_scan_int;
448 __u16 def_inq_scan_window;
449 __u16 def_br_lsto;
450 __u16 def_page_timeout;
451 __u16 def_multi_adv_rotation_duration;
452 __u16 def_le_autoconnect_timeout;
453 __s8 min_le_tx_power;
454 __s8 max_le_tx_power;
455
456 __u16 pkt_type;
457 __u16 esco_type;
458 __u16 link_policy;
459 __u16 link_mode;
460
461 __u32 idle_timeout;
462 __u16 sniff_min_interval;
463 __u16 sniff_max_interval;
464
465 unsigned int auto_accept_delay;
466
467 unsigned long quirks;
468
469 atomic_t cmd_cnt;
470 unsigned int acl_cnt;
471 unsigned int sco_cnt;
472 unsigned int le_cnt;
473 unsigned int iso_cnt;
474
475 unsigned int acl_mtu;
476 unsigned int sco_mtu;
477 unsigned int le_mtu;
478 unsigned int iso_mtu;
479 unsigned int acl_pkts;
480 unsigned int sco_pkts;
481 unsigned int le_pkts;
482 unsigned int iso_pkts;
483
484 unsigned long acl_last_tx;
485 unsigned long le_last_tx;
486
487 __u8 le_tx_def_phys;
488 __u8 le_rx_def_phys;
489
490 struct workqueue_struct *workqueue;
491 struct workqueue_struct *req_workqueue;
492
493 struct work_struct power_on;
494 struct delayed_work power_off;
495 struct work_struct error_reset;
496 struct work_struct cmd_sync_work;
497 struct list_head cmd_sync_work_list;
498 struct mutex cmd_sync_work_lock;
499 struct mutex unregister_lock;
500 struct work_struct cmd_sync_cancel_work;
501 struct work_struct reenable_adv_work;
502
503 __u16 discov_timeout;
504 struct delayed_work discov_off;
505
506 struct delayed_work service_cache;
507
508 struct delayed_work cmd_timer;
509 struct delayed_work ncmd_timer;
510
511 struct work_struct rx_work;
512 struct work_struct cmd_work;
513 struct work_struct tx_work;
514
515 struct delayed_work le_scan_disable;
516
517 struct sk_buff_head rx_q;
518 struct sk_buff_head raw_q;
519 struct sk_buff_head cmd_q;
520
521 struct sk_buff *sent_cmd;
522 struct sk_buff *recv_event;
523
524 struct mutex req_lock;
525 wait_queue_head_t req_wait_q;
526 __u32 req_status;
527 __u32 req_result;
528 struct sk_buff *req_skb;
529 struct sk_buff *req_rsp;
530
531 void *smp_data;
532 void *smp_bredr_data;
533
534 struct discovery_state discovery;
535
536 bool discovery_paused;
537 int advertising_old_state;
538 bool advertising_paused;
539
540 struct notifier_block suspend_notifier;
541 enum suspended_state suspend_state_next;
542 enum suspended_state suspend_state;
543 bool scanning_paused;
544 bool suspended;
545 u8 wake_reason;
546 bdaddr_t wake_addr;
547 u8 wake_addr_type;
548
549 struct hci_conn_hash conn_hash;
550
551 struct list_head mesh_pending;
552 struct mutex mgmt_pending_lock;
553 struct list_head mgmt_pending;
554 struct list_head reject_list;
555 struct list_head accept_list;
556 struct list_head uuids;
557 struct list_head link_keys;
558 struct list_head long_term_keys;
559 struct list_head identity_resolving_keys;
560 struct list_head remote_oob_data;
561 struct list_head le_accept_list;
562 struct list_head le_resolv_list;
563 struct list_head le_conn_params;
564 struct list_head pend_le_conns;
565 struct list_head pend_le_reports;
566 struct list_head blocked_keys;
567 struct list_head local_codecs;
568
569 struct hci_dev_stats stat;
570
571 atomic_t promisc;
572
573 const char *hw_info;
574 const char *fw_info;
575 struct dentry *debugfs;
576
577 struct hci_devcoredump dump;
578
579 struct device dev;
580
581 struct rfkill *rfkill;
582
583 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
584 hci_conn_flags_t conn_flags;
585
586 __s8 adv_tx_power;
587 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
588 __u8 adv_data_len;
589 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
590 __u8 scan_rsp_data_len;
591 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
592 __u8 per_adv_data_len;
593
594 struct list_head adv_instances;
595 unsigned int adv_instance_cnt;
596 __u8 cur_adv_instance;
597 __u16 adv_instance_timeout;
598 struct delayed_work adv_instance_expire;
599
600 struct idr adv_monitors_idr;
601 unsigned int adv_monitors_cnt;
602
603 __u8 irk[16];
604 __u32 rpa_timeout;
605 struct delayed_work rpa_expired;
606 bdaddr_t rpa;
607
608 struct delayed_work mesh_send_done;
609
610 enum {
611 INTERLEAVE_SCAN_NONE,
612 INTERLEAVE_SCAN_NO_FILTER,
613 INTERLEAVE_SCAN_ALLOWLIST
614 } interleave_scan_state;
615
616 struct delayed_work interleave_scan;
617
618 struct list_head monitored_devices;
619 bool advmon_pend_notify;
620
621 struct hci_drv *hci_drv;
622
623 #if IS_ENABLED(CONFIG_BT_LEDS)
624 struct led_trigger *power_led;
625 #endif
626
627 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
628 __u16 msft_opcode;
629 void *msft_data;
630 bool msft_curve_validity;
631 #endif
632
633 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
634 bool aosp_capable;
635 bool aosp_quality_report;
636 #endif
637
638 int (*open)(struct hci_dev *hdev);
639 int (*close)(struct hci_dev *hdev);
640 int (*flush)(struct hci_dev *hdev);
641 int (*setup)(struct hci_dev *hdev);
642 int (*shutdown)(struct hci_dev *hdev);
643 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
644 void (*notify)(struct hci_dev *hdev, unsigned int evt);
645 void (*hw_error)(struct hci_dev *hdev, u8 code);
646 int (*post_init)(struct hci_dev *hdev);
647 int (*set_diag)(struct hci_dev *hdev, bool enable);
648 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
649 void (*reset)(struct hci_dev *hdev);
650 bool (*wakeup)(struct hci_dev *hdev);
651 int (*set_quality_report)(struct hci_dev *hdev, bool enable);
652 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
653 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
654 struct bt_codec *codec, __u8 *vnd_len,
655 __u8 **vnd_data);
656 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb);
657 };
658
659 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
660
661 enum conn_reasons {
662 CONN_REASON_PAIR_DEVICE,
663 CONN_REASON_L2CAP_CHAN,
664 CONN_REASON_SCO_CONNECT,
665 CONN_REASON_ISO_CONNECT,
666 };
667
668 struct hci_conn {
669 struct list_head list;
670
671 atomic_t refcnt;
672
673 bdaddr_t dst;
674 __u8 dst_type;
675 bdaddr_t src;
676 __u8 src_type;
677 bdaddr_t init_addr;
678 __u8 init_addr_type;
679 bdaddr_t resp_addr;
680 __u8 resp_addr_type;
681 __u8 adv_instance;
682 __u16 handle;
683 __u16 sync_handle;
684 __u8 sid;
685 __u16 state;
686 __u16 mtu;
687 __u8 mode;
688 __u8 type;
689 __u8 role;
690 bool out;
691 __u8 attempt;
692 __u8 dev_class[3];
693 __u8 features[HCI_MAX_PAGES][8];
694 __u16 pkt_type;
695 __u16 link_policy;
696 __u8 key_type;
697 __u8 auth_type;
698 __u8 sec_level;
699 __u8 pending_sec_level;
700 __u8 pin_length;
701 __u8 enc_key_size;
702 __u8 io_capability;
703 __u32 passkey_notify;
704 __u8 passkey_entered;
705 __u16 disc_timeout;
706 __u16 conn_timeout;
707 __u16 setting;
708 __u16 auth_payload_timeout;
709 __u16 le_conn_min_interval;
710 __u16 le_conn_max_interval;
711 __u16 le_conn_interval;
712 __u16 le_conn_latency;
713 __u16 le_supv_timeout;
714 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
715 __u8 le_adv_data_len;
716 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN];
717 __u16 le_per_adv_data_len;
718 __u16 le_per_adv_data_offset;
719 __u8 le_adv_phy;
720 __u8 le_adv_sec_phy;
721 __u8 le_tx_phy;
722 __u8 le_rx_phy;
723 __s8 rssi;
724 __s8 tx_power;
725 __s8 max_tx_power;
726 struct bt_iso_qos iso_qos;
727 __u8 num_bis;
728 __u8 bis[HCI_MAX_ISO_BIS];
729
730 unsigned long flags;
731
732 enum conn_reasons conn_reason;
733 __u8 abort_reason;
734
735 __u32 clock;
736 __u16 clock_accuracy;
737
738 unsigned long conn_info_timestamp;
739
740 __u8 remote_cap;
741 __u8 remote_auth;
742 __u8 remote_id;
743
744 unsigned int sent;
745
746 struct sk_buff_head data_q;
747 struct list_head chan_list;
748
749 struct tx_queue tx_q;
750
751 struct delayed_work disc_work;
752 struct delayed_work auto_accept_work;
753 struct delayed_work idle_work;
754 struct delayed_work le_conn_timeout;
755
756 struct device dev;
757 struct dentry *debugfs;
758
759 struct hci_dev *hdev;
760 void *l2cap_data;
761 void *sco_data;
762 void *iso_data;
763
764 struct list_head link_list;
765 struct hci_conn *parent;
766 struct hci_link *link;
767
768 struct bt_codec codec;
769
770 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
771 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
772 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
773
774 void (*cleanup)(struct hci_conn *conn);
775 };
776
777 struct hci_link {
778 struct list_head list;
779 struct hci_conn *conn;
780 };
781
782 struct hci_chan {
783 struct list_head list;
784 __u16 handle;
785 struct hci_conn *conn;
786 struct sk_buff_head data_q;
787 unsigned int sent;
788 __u8 state;
789 };
790
791 struct hci_conn_params {
792 struct list_head list;
793 struct list_head action;
794
795 bdaddr_t addr;
796 u8 addr_type;
797
798 u16 conn_min_interval;
799 u16 conn_max_interval;
800 u16 conn_latency;
801 u16 supervision_timeout;
802
803 enum {
804 HCI_AUTO_CONN_DISABLED,
805 HCI_AUTO_CONN_REPORT,
806 HCI_AUTO_CONN_DIRECT,
807 HCI_AUTO_CONN_ALWAYS,
808 HCI_AUTO_CONN_LINK_LOSS,
809 HCI_AUTO_CONN_EXPLICIT,
810 } auto_connect;
811
812 struct hci_conn *conn;
813 bool explicit_connect;
814 /* Accessed without hdev->lock: */
815 hci_conn_flags_t flags;
816 u8 privacy_mode;
817 };
818
819 extern struct list_head hci_dev_list;
820 extern struct list_head hci_cb_list;
821 extern rwlock_t hci_dev_list_lock;
822 extern struct mutex hci_cb_list_lock;
823
824 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
825 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
826 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
827 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
828 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
829 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
830 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
831
832 #define hci_dev_clear_volatile_flags(hdev) \
833 do { \
834 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
835 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
836 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
837 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
838 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
839 } while (0)
840
841 #define hci_dev_le_state_simultaneous(hdev) \
842 (!test_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks) && \
843 (hdev->le_states[4] & 0x08) && /* Central */ \
844 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
845 (hdev->le_states[3] & 0x10)) /* Simultaneous */
846
847 /* ----- HCI interface to upper protocols ----- */
848 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
849 int l2cap_disconn_ind(struct hci_conn *hcon);
850 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
851
852 #if IS_ENABLED(CONFIG_BT_BREDR)
853 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
854 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
855 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)856 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
857 __u8 *flags)
858 {
859 return 0;
860 }
861
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)862 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
863 {
864 }
865 #endif
866
867 #if IS_ENABLED(CONFIG_BT_LE)
868 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
869 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
870 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)871 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
872 __u8 *flags)
873 {
874 return 0;
875 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)876 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
877 u16 flags)
878 {
879 }
880 #endif
881
882 /* ----- Inquiry cache ----- */
883 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
884 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
885
discovery_init(struct hci_dev * hdev)886 static inline void discovery_init(struct hci_dev *hdev)
887 {
888 hdev->discovery.state = DISCOVERY_STOPPED;
889 INIT_LIST_HEAD(&hdev->discovery.all);
890 INIT_LIST_HEAD(&hdev->discovery.unknown);
891 INIT_LIST_HEAD(&hdev->discovery.resolve);
892 hdev->discovery.report_invalid_rssi = true;
893 hdev->discovery.rssi = HCI_RSSI_INVALID;
894 }
895
hci_discovery_filter_clear(struct hci_dev * hdev)896 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
897 {
898 hdev->discovery.result_filtering = false;
899 hdev->discovery.report_invalid_rssi = true;
900 hdev->discovery.rssi = HCI_RSSI_INVALID;
901 hdev->discovery.uuid_count = 0;
902 kfree(hdev->discovery.uuids);
903 hdev->discovery.uuids = NULL;
904 }
905
906 bool hci_discovery_active(struct hci_dev *hdev);
907
908 void hci_discovery_set_state(struct hci_dev *hdev, int state);
909
inquiry_cache_empty(struct hci_dev * hdev)910 static inline int inquiry_cache_empty(struct hci_dev *hdev)
911 {
912 return list_empty(&hdev->discovery.all);
913 }
914
inquiry_cache_age(struct hci_dev * hdev)915 static inline long inquiry_cache_age(struct hci_dev *hdev)
916 {
917 struct discovery_state *c = &hdev->discovery;
918 return jiffies - c->timestamp;
919 }
920
inquiry_entry_age(struct inquiry_entry * e)921 static inline long inquiry_entry_age(struct inquiry_entry *e)
922 {
923 return jiffies - e->timestamp;
924 }
925
926 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
927 bdaddr_t *bdaddr);
928 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
929 bdaddr_t *bdaddr);
930 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
931 bdaddr_t *bdaddr,
932 int state);
933 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
934 struct inquiry_entry *ie);
935 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
936 bool name_known);
937 void hci_inquiry_cache_flush(struct hci_dev *hdev);
938
939 /* ----- HCI Connections ----- */
940 enum {
941 HCI_CONN_AUTH_PEND,
942 HCI_CONN_ENCRYPT_PEND,
943 HCI_CONN_RSWITCH_PEND,
944 HCI_CONN_MODE_CHANGE_PEND,
945 HCI_CONN_SCO_SETUP_PEND,
946 HCI_CONN_MGMT_CONNECTED,
947 HCI_CONN_SSP_ENABLED,
948 HCI_CONN_SC_ENABLED,
949 HCI_CONN_AES_CCM,
950 HCI_CONN_POWER_SAVE,
951 HCI_CONN_FLUSH_KEY,
952 HCI_CONN_ENCRYPT,
953 HCI_CONN_AUTH,
954 HCI_CONN_SECURE,
955 HCI_CONN_FIPS,
956 HCI_CONN_STK_ENCRYPT,
957 HCI_CONN_AUTH_INITIATOR,
958 HCI_CONN_DROP,
959 HCI_CONN_CANCEL,
960 HCI_CONN_PARAM_REMOVAL_PEND,
961 HCI_CONN_NEW_LINK_KEY,
962 HCI_CONN_SCANNING,
963 HCI_CONN_AUTH_FAILURE,
964 HCI_CONN_PER_ADV,
965 HCI_CONN_BIG_CREATED,
966 HCI_CONN_CREATE_CIS,
967 HCI_CONN_CREATE_BIG_SYNC,
968 HCI_CONN_BIG_SYNC,
969 HCI_CONN_BIG_SYNC_FAILED,
970 HCI_CONN_CREATE_PA_SYNC,
971 HCI_CONN_PA_SYNC,
972 HCI_CONN_PA_SYNC_FAILED,
973 };
974
hci_conn_ssp_enabled(struct hci_conn * conn)975 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
976 {
977 struct hci_dev *hdev = conn->hdev;
978 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
979 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
980 }
981
hci_conn_sc_enabled(struct hci_conn * conn)982 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
983 {
984 struct hci_dev *hdev = conn->hdev;
985 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
986 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
987 }
988
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)989 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
990 {
991 struct hci_conn_hash *h = &hdev->conn_hash;
992 list_add_tail_rcu(&c->list, &h->list);
993 switch (c->type) {
994 case ACL_LINK:
995 h->acl_num++;
996 break;
997 case LE_LINK:
998 h->le_num++;
999 if (c->role == HCI_ROLE_SLAVE)
1000 h->le_num_peripheral++;
1001 break;
1002 case SCO_LINK:
1003 case ESCO_LINK:
1004 h->sco_num++;
1005 break;
1006 case CIS_LINK:
1007 case BIS_LINK:
1008 h->iso_num++;
1009 break;
1010 }
1011 }
1012
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)1013 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1014 {
1015 struct hci_conn_hash *h = &hdev->conn_hash;
1016
1017 list_del_rcu(&c->list);
1018 synchronize_rcu();
1019
1020 switch (c->type) {
1021 case ACL_LINK:
1022 h->acl_num--;
1023 break;
1024 case LE_LINK:
1025 h->le_num--;
1026 if (c->role == HCI_ROLE_SLAVE)
1027 h->le_num_peripheral--;
1028 break;
1029 case SCO_LINK:
1030 case ESCO_LINK:
1031 h->sco_num--;
1032 break;
1033 case CIS_LINK:
1034 case BIS_LINK:
1035 h->iso_num--;
1036 break;
1037 }
1038 }
1039
hci_conn_num(struct hci_dev * hdev,__u8 type)1040 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1041 {
1042 struct hci_conn_hash *h = &hdev->conn_hash;
1043 switch (type) {
1044 case ACL_LINK:
1045 return h->acl_num;
1046 case LE_LINK:
1047 return h->le_num;
1048 case SCO_LINK:
1049 case ESCO_LINK:
1050 return h->sco_num;
1051 case CIS_LINK:
1052 case BIS_LINK:
1053 return h->iso_num;
1054 default:
1055 return 0;
1056 }
1057 }
1058
hci_conn_count(struct hci_dev * hdev)1059 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1060 {
1061 struct hci_conn_hash *c = &hdev->conn_hash;
1062
1063 return c->acl_num + c->sco_num + c->le_num + c->iso_num;
1064 }
1065
hci_conn_valid(struct hci_dev * hdev,struct hci_conn * conn)1066 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn)
1067 {
1068 struct hci_conn_hash *h = &hdev->conn_hash;
1069 struct hci_conn *c;
1070
1071 rcu_read_lock();
1072
1073 list_for_each_entry_rcu(c, &h->list, list) {
1074 if (c == conn) {
1075 rcu_read_unlock();
1076 return true;
1077 }
1078 }
1079 rcu_read_unlock();
1080
1081 return false;
1082 }
1083
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)1084 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1085 {
1086 struct hci_conn_hash *h = &hdev->conn_hash;
1087 struct hci_conn *c;
1088 __u8 type = INVALID_LINK;
1089
1090 rcu_read_lock();
1091
1092 list_for_each_entry_rcu(c, &h->list, list) {
1093 if (c->handle == handle) {
1094 type = c->type;
1095 break;
1096 }
1097 }
1098
1099 rcu_read_unlock();
1100
1101 return type;
1102 }
1103
hci_conn_hash_lookup_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 bis)1104 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1105 bdaddr_t *ba, __u8 bis)
1106 {
1107 struct hci_conn_hash *h = &hdev->conn_hash;
1108 struct hci_conn *c;
1109
1110 rcu_read_lock();
1111
1112 list_for_each_entry_rcu(c, &h->list, list) {
1113 if (bacmp(&c->dst, ba) || c->type != BIS_LINK)
1114 continue;
1115
1116 if (c->iso_qos.bcast.bis == bis) {
1117 rcu_read_unlock();
1118 return c;
1119 }
1120 }
1121 rcu_read_unlock();
1122
1123 return NULL;
1124 }
1125
1126 static inline struct hci_conn *
hci_conn_hash_lookup_create_pa_sync(struct hci_dev * hdev)1127 hci_conn_hash_lookup_create_pa_sync(struct hci_dev *hdev)
1128 {
1129 struct hci_conn_hash *h = &hdev->conn_hash;
1130 struct hci_conn *c;
1131
1132 rcu_read_lock();
1133
1134 list_for_each_entry_rcu(c, &h->list, list) {
1135 if (c->type != BIS_LINK)
1136 continue;
1137
1138 if (!test_bit(HCI_CONN_CREATE_PA_SYNC, &c->flags))
1139 continue;
1140
1141 rcu_read_unlock();
1142 return c;
1143 }
1144
1145 rcu_read_unlock();
1146
1147 return NULL;
1148 }
1149
1150 static inline struct hci_conn *
hci_conn_hash_lookup_per_adv_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 big,__u8 bis)1151 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1152 bdaddr_t *ba,
1153 __u8 big, __u8 bis)
1154 {
1155 struct hci_conn_hash *h = &hdev->conn_hash;
1156 struct hci_conn *c;
1157
1158 rcu_read_lock();
1159
1160 list_for_each_entry_rcu(c, &h->list, list) {
1161 if (bacmp(&c->dst, ba) || c->type != BIS_LINK ||
1162 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1163 continue;
1164
1165 if (c->iso_qos.bcast.big == big &&
1166 c->iso_qos.bcast.bis == bis) {
1167 rcu_read_unlock();
1168 return c;
1169 }
1170 }
1171 rcu_read_unlock();
1172
1173 return NULL;
1174 }
1175
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)1176 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1177 __u16 handle)
1178 {
1179 struct hci_conn_hash *h = &hdev->conn_hash;
1180 struct hci_conn *c;
1181
1182 rcu_read_lock();
1183
1184 list_for_each_entry_rcu(c, &h->list, list) {
1185 if (c->handle == handle) {
1186 rcu_read_unlock();
1187 return c;
1188 }
1189 }
1190 rcu_read_unlock();
1191
1192 return NULL;
1193 }
1194
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)1195 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1196 __u8 type, bdaddr_t *ba)
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 == type && !bacmp(&c->dst, ba)) {
1205 rcu_read_unlock();
1206 return c;
1207 }
1208 }
1209
1210 rcu_read_unlock();
1211
1212 return NULL;
1213 }
1214
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1215 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1216 bdaddr_t *ba,
1217 __u8 ba_type)
1218 {
1219 struct hci_conn_hash *h = &hdev->conn_hash;
1220 struct hci_conn *c;
1221
1222 rcu_read_lock();
1223
1224 list_for_each_entry_rcu(c, &h->list, list) {
1225 if (c->type != LE_LINK)
1226 continue;
1227
1228 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1229 rcu_read_unlock();
1230 return c;
1231 }
1232 }
1233
1234 rcu_read_unlock();
1235
1236 return NULL;
1237 }
1238
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1239 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1240 bdaddr_t *ba,
1241 __u8 ba_type,
1242 __u8 cig,
1243 __u8 id)
1244 {
1245 struct hci_conn_hash *h = &hdev->conn_hash;
1246 struct hci_conn *c;
1247
1248 rcu_read_lock();
1249
1250 list_for_each_entry_rcu(c, &h->list, list) {
1251 if (c->type != CIS_LINK)
1252 continue;
1253
1254 /* Match CIG ID if set */
1255 if (cig != c->iso_qos.ucast.cig)
1256 continue;
1257
1258 /* Match CIS ID if set */
1259 if (id != c->iso_qos.ucast.cis)
1260 continue;
1261
1262 /* Match destination address if set */
1263 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1264 rcu_read_unlock();
1265 return c;
1266 }
1267 }
1268
1269 rcu_read_unlock();
1270
1271 return NULL;
1272 }
1273
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1274 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1275 __u8 handle)
1276 {
1277 struct hci_conn_hash *h = &hdev->conn_hash;
1278 struct hci_conn *c;
1279
1280 rcu_read_lock();
1281
1282 list_for_each_entry_rcu(c, &h->list, list) {
1283 if (c->type != CIS_LINK)
1284 continue;
1285
1286 if (handle == c->iso_qos.ucast.cig) {
1287 rcu_read_unlock();
1288 return c;
1289 }
1290 }
1291
1292 rcu_read_unlock();
1293
1294 return NULL;
1295 }
1296
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1297 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1298 __u8 handle)
1299 {
1300 struct hci_conn_hash *h = &hdev->conn_hash;
1301 struct hci_conn *c;
1302
1303 rcu_read_lock();
1304
1305 list_for_each_entry_rcu(c, &h->list, list) {
1306 if (c->type != BIS_LINK)
1307 continue;
1308
1309 if (handle == c->iso_qos.bcast.big) {
1310 rcu_read_unlock();
1311 return c;
1312 }
1313 }
1314
1315 rcu_read_unlock();
1316
1317 return NULL;
1318 }
1319
1320 static inline struct hci_conn *
hci_conn_hash_lookup_big_sync_pend(struct hci_dev * hdev,__u8 handle,__u8 num_bis)1321 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev,
1322 __u8 handle, __u8 num_bis)
1323 {
1324 struct hci_conn_hash *h = &hdev->conn_hash;
1325 struct hci_conn *c;
1326
1327 rcu_read_lock();
1328
1329 list_for_each_entry_rcu(c, &h->list, list) {
1330 if (c->type != BIS_LINK)
1331 continue;
1332
1333 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) {
1334 rcu_read_unlock();
1335 return c;
1336 }
1337 }
1338
1339 rcu_read_unlock();
1340
1341 return NULL;
1342 }
1343
1344 static inline struct hci_conn *
hci_conn_hash_lookup_big_state(struct hci_dev * hdev,__u8 handle,__u16 state)1345 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
1346 {
1347 struct hci_conn_hash *h = &hdev->conn_hash;
1348 struct hci_conn *c;
1349
1350 rcu_read_lock();
1351
1352 list_for_each_entry_rcu(c, &h->list, list) {
1353 if (c->type != BIS_LINK || c->state != state)
1354 continue;
1355
1356 if (handle == c->iso_qos.bcast.big) {
1357 rcu_read_unlock();
1358 return c;
1359 }
1360 }
1361
1362 rcu_read_unlock();
1363
1364 return NULL;
1365 }
1366
1367 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1368 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1369 {
1370 struct hci_conn_hash *h = &hdev->conn_hash;
1371 struct hci_conn *c;
1372
1373 rcu_read_lock();
1374
1375 list_for_each_entry_rcu(c, &h->list, list) {
1376 if (c->type != BIS_LINK ||
1377 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1378 continue;
1379
1380 if (c->iso_qos.bcast.big == big) {
1381 rcu_read_unlock();
1382 return c;
1383 }
1384 }
1385 rcu_read_unlock();
1386
1387 return NULL;
1388 }
1389
1390 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1391 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1392 {
1393 struct hci_conn_hash *h = &hdev->conn_hash;
1394 struct hci_conn *c;
1395
1396 rcu_read_lock();
1397
1398 list_for_each_entry_rcu(c, &h->list, list) {
1399 if (c->type != BIS_LINK)
1400 continue;
1401
1402 /* Ignore the listen hcon, we are looking
1403 * for the child hcon that was created as
1404 * a result of the PA sync established event.
1405 */
1406 if (c->state == BT_LISTEN)
1407 continue;
1408
1409 if (c->sync_handle == sync_handle) {
1410 rcu_read_unlock();
1411 return c;
1412 }
1413 }
1414 rcu_read_unlock();
1415
1416 return NULL;
1417 }
1418
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1419 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1420 __u8 type, __u16 state)
1421 {
1422 struct hci_conn_hash *h = &hdev->conn_hash;
1423 struct hci_conn *c;
1424
1425 rcu_read_lock();
1426
1427 list_for_each_entry_rcu(c, &h->list, list) {
1428 if (c->type == type && c->state == state) {
1429 rcu_read_unlock();
1430 return c;
1431 }
1432 }
1433
1434 rcu_read_unlock();
1435
1436 return NULL;
1437 }
1438
1439 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)1440 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1441 hci_conn_func_t func, __u8 type,
1442 __u16 state, void *data)
1443 {
1444 struct hci_conn_hash *h = &hdev->conn_hash;
1445 struct hci_conn *c;
1446
1447 if (!func)
1448 return;
1449
1450 rcu_read_lock();
1451
1452 list_for_each_entry_rcu(c, &h->list, list) {
1453 if (c->type == type && c->state == state)
1454 func(c, data);
1455 }
1456
1457 rcu_read_unlock();
1458 }
1459
hci_conn_hash_list_flag(struct hci_dev * hdev,hci_conn_func_t func,__u8 type,__u8 flag,void * data)1460 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev,
1461 hci_conn_func_t func, __u8 type,
1462 __u8 flag, void *data)
1463 {
1464 struct hci_conn_hash *h = &hdev->conn_hash;
1465 struct hci_conn *c;
1466
1467 if (!func)
1468 return;
1469
1470 rcu_read_lock();
1471
1472 list_for_each_entry_rcu(c, &h->list, list) {
1473 if (c->type == type && test_bit(flag, &c->flags))
1474 func(c, data);
1475 }
1476
1477 rcu_read_unlock();
1478 }
1479
hci_lookup_le_connect(struct hci_dev * hdev)1480 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1481 {
1482 struct hci_conn_hash *h = &hdev->conn_hash;
1483 struct hci_conn *c;
1484
1485 rcu_read_lock();
1486
1487 list_for_each_entry_rcu(c, &h->list, list) {
1488 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1489 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1490 rcu_read_unlock();
1491 return c;
1492 }
1493 }
1494
1495 rcu_read_unlock();
1496
1497 return NULL;
1498 }
1499
1500 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1501 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1502 {
1503 struct hci_conn_hash *h = &hdev->conn_hash;
1504 struct hci_conn *c;
1505
1506 rcu_read_lock();
1507
1508 list_for_each_entry_rcu(c, &h->list, list) {
1509 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1510 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1511 rcu_read_unlock();
1512 return true;
1513 }
1514 }
1515
1516 rcu_read_unlock();
1517
1518 return false;
1519 }
1520
1521 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1522 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1523 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1524 bool hci_iso_setup_path(struct hci_conn *conn);
1525 int hci_le_create_cis_pending(struct hci_dev *hdev);
1526 int hci_conn_check_create_cis(struct hci_conn *conn);
1527
1528 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1529 u8 role, u16 handle);
1530 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1531 bdaddr_t *dst, u8 role);
1532 void hci_conn_del(struct hci_conn *conn);
1533 void hci_conn_hash_flush(struct hci_dev *hdev);
1534
1535 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1536 void hci_chan_del(struct hci_chan *chan);
1537 void hci_chan_list_flush(struct hci_conn *conn);
1538 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1539
1540 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1541 u8 dst_type, u8 sec_level,
1542 u16 conn_timeout,
1543 enum conn_reasons conn_reason);
1544 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1545 u8 dst_type, bool dst_resolved, u8 sec_level,
1546 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy);
1547 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1548 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1549 u8 sec_level, u8 auth_type,
1550 enum conn_reasons conn_reason, u16 timeout);
1551 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1552 __u16 setting, struct bt_codec *codec,
1553 u16 timeout);
1554 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1555 __u8 dst_type, struct bt_iso_qos *qos);
1556 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
1557 struct bt_iso_qos *qos,
1558 __u8 base_len, __u8 *base);
1559 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1560 __u8 dst_type, struct bt_iso_qos *qos);
1561 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1562 __u8 dst_type, __u8 sid,
1563 struct bt_iso_qos *qos,
1564 __u8 data_len, __u8 *data);
1565 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
1566 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
1567 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1568 struct bt_iso_qos *qos, __u16 sync_handle,
1569 __u8 num_bis, __u8 bis[]);
1570 int hci_conn_check_link_mode(struct hci_conn *conn);
1571 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1572 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1573 bool initiator);
1574 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1575
1576 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1577
1578 void hci_conn_failed(struct hci_conn *conn, u8 status);
1579 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1580
1581 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb);
1582 void hci_conn_tx_dequeue(struct hci_conn *conn);
1583 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset,
1584 const struct sockcm_cookie *sockc);
1585
hci_sockcm_init(struct sockcm_cookie * sockc,struct sock * sk)1586 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk)
1587 {
1588 *sockc = (struct sockcm_cookie) {
1589 .tsflags = READ_ONCE(sk->sk_tsflags),
1590 };
1591 }
1592
1593 /*
1594 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1595 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1596 * working or anything else. They just guarantee that the object is available
1597 * and can be dereferenced. So you can use its locks, local variables and any
1598 * other constant data.
1599 * Before accessing runtime data, you _must_ lock the object and then check that
1600 * it is still running. As soon as you release the locks, the connection might
1601 * get dropped, though.
1602 *
1603 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1604 * how long the underlying connection is held. So every channel that runs on the
1605 * hci_conn object calls this to prevent the connection from disappearing. As
1606 * long as you hold a device, you must also guarantee that you have a valid
1607 * reference to the device via hci_conn_get() (or the initial reference from
1608 * hci_conn_add()).
1609 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1610 * break because nobody cares for that. But this means, we cannot use
1611 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1612 */
1613
hci_conn_get(struct hci_conn * conn)1614 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1615 {
1616 get_device(&conn->dev);
1617 return conn;
1618 }
1619
hci_conn_put(struct hci_conn * conn)1620 static inline void hci_conn_put(struct hci_conn *conn)
1621 {
1622 put_device(&conn->dev);
1623 }
1624
hci_conn_hold(struct hci_conn * conn)1625 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1626 {
1627 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1628
1629 atomic_inc(&conn->refcnt);
1630 cancel_delayed_work(&conn->disc_work);
1631
1632 return conn;
1633 }
1634
hci_conn_drop(struct hci_conn * conn)1635 static inline void hci_conn_drop(struct hci_conn *conn)
1636 {
1637 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1638
1639 if (atomic_dec_and_test(&conn->refcnt)) {
1640 unsigned long timeo;
1641
1642 switch (conn->type) {
1643 case ACL_LINK:
1644 case LE_LINK:
1645 cancel_delayed_work(&conn->idle_work);
1646 if (conn->state == BT_CONNECTED) {
1647 timeo = conn->disc_timeout;
1648 if (!conn->out)
1649 timeo *= 2;
1650 } else {
1651 timeo = 0;
1652 }
1653 break;
1654
1655 default:
1656 timeo = 0;
1657 break;
1658 }
1659
1660 cancel_delayed_work(&conn->disc_work);
1661 queue_delayed_work(conn->hdev->workqueue,
1662 &conn->disc_work, timeo);
1663 }
1664 }
1665
1666 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1667 static inline void hci_dev_put(struct hci_dev *d)
1668 {
1669 BT_DBG("%s orig refcnt %d", d->name,
1670 kref_read(&d->dev.kobj.kref));
1671
1672 put_device(&d->dev);
1673 }
1674
hci_dev_hold(struct hci_dev * d)1675 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1676 {
1677 BT_DBG("%s orig refcnt %d", d->name,
1678 kref_read(&d->dev.kobj.kref));
1679
1680 get_device(&d->dev);
1681 return d;
1682 }
1683
1684 #define hci_dev_lock(d) mutex_lock(&d->lock)
1685 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1686
1687 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1688 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1689
hci_get_drvdata(struct hci_dev * hdev)1690 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1691 {
1692 return dev_get_drvdata(&hdev->dev);
1693 }
1694
hci_set_drvdata(struct hci_dev * hdev,void * data)1695 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1696 {
1697 dev_set_drvdata(&hdev->dev, data);
1698 }
1699
hci_get_priv(struct hci_dev * hdev)1700 static inline void *hci_get_priv(struct hci_dev *hdev)
1701 {
1702 return (char *)hdev + sizeof(*hdev);
1703 }
1704
1705 struct hci_dev *hci_dev_get(int index);
1706 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1707
1708 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1709
hci_alloc_dev(void)1710 static inline struct hci_dev *hci_alloc_dev(void)
1711 {
1712 return hci_alloc_dev_priv(0);
1713 }
1714
1715 void hci_free_dev(struct hci_dev *hdev);
1716 int hci_register_dev(struct hci_dev *hdev);
1717 void hci_unregister_dev(struct hci_dev *hdev);
1718 void hci_release_dev(struct hci_dev *hdev);
1719 int hci_register_suspend_notifier(struct hci_dev *hdev);
1720 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1721 int hci_suspend_dev(struct hci_dev *hdev);
1722 int hci_resume_dev(struct hci_dev *hdev);
1723 int hci_reset_dev(struct hci_dev *hdev);
1724 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1725 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1726 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1727 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1728
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1729 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1730 {
1731 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1732 hdev->msft_opcode = opcode;
1733 #endif
1734 }
1735
hci_set_aosp_capable(struct hci_dev * hdev)1736 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1737 {
1738 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1739 hdev->aosp_capable = true;
1740 #endif
1741 }
1742
hci_devcd_setup(struct hci_dev * hdev)1743 static inline void hci_devcd_setup(struct hci_dev *hdev)
1744 {
1745 #ifdef CONFIG_DEV_COREDUMP
1746 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1747 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1748 skb_queue_head_init(&hdev->dump.dump_q);
1749 #endif
1750 }
1751
1752 int hci_dev_open(__u16 dev);
1753 int hci_dev_close(__u16 dev);
1754 int hci_dev_do_close(struct hci_dev *hdev);
1755 int hci_dev_reset(__u16 dev);
1756 int hci_dev_reset_stat(__u16 dev);
1757 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1758 int hci_get_dev_list(void __user *arg);
1759 int hci_get_dev_info(void __user *arg);
1760 int hci_get_conn_list(void __user *arg);
1761 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1762 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1763 int hci_inquiry(void __user *arg);
1764
1765 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1766 bdaddr_t *bdaddr, u8 type);
1767 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1768 struct list_head *list, bdaddr_t *bdaddr,
1769 u8 type);
1770 struct bdaddr_list_with_flags *
1771 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1772 u8 type);
1773 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1774 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1775 u8 type, u8 *peer_irk, u8 *local_irk);
1776 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1777 u8 type, u32 flags);
1778 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1779 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1780 u8 type);
1781 void hci_bdaddr_list_clear(struct list_head *list);
1782
1783 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1784 bdaddr_t *addr, u8 addr_type);
1785 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1786 bdaddr_t *addr, u8 addr_type);
1787 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1788 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1789 void hci_conn_params_free(struct hci_conn_params *param);
1790
1791 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1792 void hci_pend_le_list_add(struct hci_conn_params *param,
1793 struct list_head *list);
1794 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1795 bdaddr_t *addr,
1796 u8 addr_type);
1797
1798 void hci_uuids_clear(struct hci_dev *hdev);
1799
1800 void hci_link_keys_clear(struct hci_dev *hdev);
1801 u8 *hci_conn_key_enc_size(struct hci_conn *conn);
1802 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1803 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1804 bdaddr_t *bdaddr, u8 *val, u8 type,
1805 u8 pin_len, bool *persistent);
1806 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1807 u8 addr_type, u8 type, u8 authenticated,
1808 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1809 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1810 u8 addr_type, u8 role);
1811 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1812 void hci_smp_ltks_clear(struct hci_dev *hdev);
1813 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1814
1815 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1816 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1817 u8 addr_type);
1818 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1819 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1820 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1821 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1822 void hci_blocked_keys_clear(struct hci_dev *hdev);
1823 void hci_smp_irks_clear(struct hci_dev *hdev);
1824
1825 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1826
1827 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1828 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1829 bdaddr_t *bdaddr, u8 bdaddr_type);
1830 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1831 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1832 u8 *hash256, u8 *rand256);
1833 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1834 u8 bdaddr_type);
1835
1836 void hci_adv_instances_clear(struct hci_dev *hdev);
1837 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1838 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid);
1839 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1840 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1841 u32 flags, u16 adv_data_len, u8 *adv_data,
1842 u16 scan_rsp_len, u8 *scan_rsp_data,
1843 u16 timeout, u16 duration, s8 tx_power,
1844 u32 min_interval, u32 max_interval,
1845 u8 mesh_handle);
1846 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid,
1847 u32 flags, u8 data_len, u8 *data,
1848 u32 min_interval, u32 max_interval);
1849 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1850 u16 adv_data_len, u8 *adv_data,
1851 u16 scan_rsp_len, u8 *scan_rsp_data);
1852 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1853 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1854 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1855 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1856
1857 void hci_adv_monitors_clear(struct hci_dev *hdev);
1858 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1859 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1860 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1861 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1862 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1863 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1864
1865 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1866
1867 void hci_init_sysfs(struct hci_dev *hdev);
1868 void hci_conn_init_sysfs(struct hci_conn *conn);
1869 void hci_conn_add_sysfs(struct hci_conn *conn);
1870 void hci_conn_del_sysfs(struct hci_conn *conn);
1871
1872 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1873 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1874
1875 /* ----- LMP capabilities ----- */
1876 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1877 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1878 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1879 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1880 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1881 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO)
1882 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1883 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1884 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1885 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1886 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1887 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1888 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1889 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1890 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1891 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1892 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1893 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1894 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1895 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1896 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1897 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1898 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1899 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1900 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1901
1902 /* ----- Extended LMP capabilities ----- */
1903 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1904 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1905 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1906 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1907 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1908 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1909
1910 /* ----- Host capabilities ----- */
1911 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1912 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1913 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1914 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1915
1916 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1917 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1918 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1919 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1920 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1921 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1922 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1923 !adv->rpa_expired)
1924
1925 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1926 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1927
1928 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1929
1930 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1931 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1932
1933 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1934 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1935 &(dev)->quirks))
1936
1937 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1938 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1939
1940 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1941
1942 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \
1943 (hdev->commands[39] & 0x04))
1944
1945 #define read_key_size_capable(dev) \
1946 ((dev)->commands[20] & 0x10 && \
1947 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1948
1949 #define read_voice_setting_capable(dev) \
1950 ((dev)->commands[9] & 0x04 && \
1951 !test_bit(HCI_QUIRK_BROKEN_READ_VOICE_SETTING, &(dev)->quirks))
1952
1953 /* Use enhanced synchronous connection if command is supported and its quirk
1954 * has not been set.
1955 */
1956 #define enhanced_sync_conn_capable(dev) \
1957 (((dev)->commands[29] & 0x08) && \
1958 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1959
1960 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1961 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1962 ((dev)->commands[37] & 0x40) && \
1963 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1964
1965 /* Use ext create connection if command is supported */
1966 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
1967 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
1968 /* Extended advertising support */
1969 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1970
1971 /* Maximum advertising length */
1972 #define max_adv_len(dev) \
1973 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1974
1975 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1976 *
1977 * C24: Mandatory if the LE Controller supports Connection State and either
1978 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1979 */
1980 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
1981 ext_adv_capable(dev)) && \
1982 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
1983 &(dev)->quirks))
1984
1985 /* Periodic advertising support */
1986 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1987
1988 /* CIS Master/Slave and BIS support */
1989 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1990 #define cis_capable(dev) \
1991 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1992 #define cis_central_capable(dev) \
1993 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1994 #define cis_peripheral_capable(dev) \
1995 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1996 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1997 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1998
1999 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
2000 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
2001
2002 /* ----- HCI protocols ----- */
2003 #define HCI_PROTO_DEFER 0x01
2004
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)2005 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
2006 __u8 type, __u8 *flags)
2007 {
2008 switch (type) {
2009 case ACL_LINK:
2010 return l2cap_connect_ind(hdev, bdaddr);
2011
2012 case SCO_LINK:
2013 case ESCO_LINK:
2014 return sco_connect_ind(hdev, bdaddr, flags);
2015
2016 case CIS_LINK:
2017 case BIS_LINK:
2018 return iso_connect_ind(hdev, bdaddr, flags);
2019
2020 default:
2021 BT_ERR("unknown link type %d", type);
2022 return -EINVAL;
2023 }
2024 }
2025
hci_proto_disconn_ind(struct hci_conn * conn)2026 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
2027 {
2028 if (conn->type != ACL_LINK && conn->type != LE_LINK)
2029 return HCI_ERROR_REMOTE_USER_TERM;
2030
2031 return l2cap_disconn_ind(conn);
2032 }
2033
2034 /* ----- HCI callbacks ----- */
2035 struct hci_cb {
2036 struct list_head list;
2037
2038 char *name;
2039
2040 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
2041 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
2042 void (*security_cfm) (struct hci_conn *conn, __u8 status,
2043 __u8 encrypt);
2044 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
2045 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
2046 };
2047
hci_connect_cfm(struct hci_conn * conn,__u8 status)2048 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
2049 {
2050 struct hci_cb *cb;
2051
2052 mutex_lock(&hci_cb_list_lock);
2053 list_for_each_entry(cb, &hci_cb_list, list) {
2054 if (cb->connect_cfm)
2055 cb->connect_cfm(conn, status);
2056 }
2057 mutex_unlock(&hci_cb_list_lock);
2058
2059 if (conn->connect_cfm_cb)
2060 conn->connect_cfm_cb(conn, status);
2061 }
2062
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)2063 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
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->disconn_cfm)
2070 cb->disconn_cfm(conn, reason);
2071 }
2072 mutex_unlock(&hci_cb_list_lock);
2073
2074 if (conn->disconn_cfm_cb)
2075 conn->disconn_cfm_cb(conn, reason);
2076 }
2077
hci_auth_cfm(struct hci_conn * conn,__u8 status)2078 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2079 {
2080 struct hci_cb *cb;
2081 __u8 encrypt;
2082
2083 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2084 return;
2085
2086 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2087
2088 mutex_lock(&hci_cb_list_lock);
2089 list_for_each_entry(cb, &hci_cb_list, list) {
2090 if (cb->security_cfm)
2091 cb->security_cfm(conn, status, encrypt);
2092 }
2093 mutex_unlock(&hci_cb_list_lock);
2094
2095 if (conn->security_cfm_cb)
2096 conn->security_cfm_cb(conn, status);
2097 }
2098
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2099 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2100 {
2101 struct hci_cb *cb;
2102 __u8 encrypt;
2103
2104 if (conn->state == BT_CONFIG) {
2105 if (!status)
2106 conn->state = BT_CONNECTED;
2107
2108 hci_connect_cfm(conn, status);
2109 hci_conn_drop(conn);
2110 return;
2111 }
2112
2113 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2114 encrypt = 0x00;
2115 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2116 encrypt = 0x02;
2117 else
2118 encrypt = 0x01;
2119
2120 if (!status) {
2121 if (conn->sec_level == BT_SECURITY_SDP)
2122 conn->sec_level = BT_SECURITY_LOW;
2123
2124 if (conn->pending_sec_level > conn->sec_level)
2125 conn->sec_level = conn->pending_sec_level;
2126 }
2127
2128 mutex_lock(&hci_cb_list_lock);
2129 list_for_each_entry(cb, &hci_cb_list, list) {
2130 if (cb->security_cfm)
2131 cb->security_cfm(conn, status, encrypt);
2132 }
2133 mutex_unlock(&hci_cb_list_lock);
2134
2135 if (conn->security_cfm_cb)
2136 conn->security_cfm_cb(conn, status);
2137 }
2138
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2139 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2140 {
2141 struct hci_cb *cb;
2142
2143 mutex_lock(&hci_cb_list_lock);
2144 list_for_each_entry(cb, &hci_cb_list, list) {
2145 if (cb->key_change_cfm)
2146 cb->key_change_cfm(conn, status);
2147 }
2148 mutex_unlock(&hci_cb_list_lock);
2149 }
2150
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2151 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2152 __u8 role)
2153 {
2154 struct hci_cb *cb;
2155
2156 mutex_lock(&hci_cb_list_lock);
2157 list_for_each_entry(cb, &hci_cb_list, list) {
2158 if (cb->role_switch_cfm)
2159 cb->role_switch_cfm(conn, status, role);
2160 }
2161 mutex_unlock(&hci_cb_list_lock);
2162 }
2163
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2164 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2165 {
2166 if (addr_type != ADDR_LE_DEV_RANDOM)
2167 return false;
2168
2169 if ((bdaddr->b[5] & 0xc0) == 0x40)
2170 return true;
2171
2172 return false;
2173 }
2174
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2175 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2176 {
2177 if (addr_type == ADDR_LE_DEV_PUBLIC)
2178 return true;
2179
2180 /* Check for Random Static address type */
2181 if ((addr->b[5] & 0xc0) == 0xc0)
2182 return true;
2183
2184 return false;
2185 }
2186
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2187 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2188 bdaddr_t *bdaddr, u8 addr_type)
2189 {
2190 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2191 return NULL;
2192
2193 return hci_find_irk_by_rpa(hdev, bdaddr);
2194 }
2195
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2196 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2197 u16 to_multiplier)
2198 {
2199 u16 max_latency;
2200
2201 if (min > max) {
2202 BT_WARN("min %d > max %d", min, max);
2203 return -EINVAL;
2204 }
2205
2206 if (min < 6) {
2207 BT_WARN("min %d < 6", min);
2208 return -EINVAL;
2209 }
2210
2211 if (max > 3200) {
2212 BT_WARN("max %d > 3200", max);
2213 return -EINVAL;
2214 }
2215
2216 if (to_multiplier < 10) {
2217 BT_WARN("to_multiplier %d < 10", to_multiplier);
2218 return -EINVAL;
2219 }
2220
2221 if (to_multiplier > 3200) {
2222 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2223 return -EINVAL;
2224 }
2225
2226 if (max >= to_multiplier * 8) {
2227 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2228 return -EINVAL;
2229 }
2230
2231 max_latency = (to_multiplier * 4 / max) - 1;
2232 if (latency > 499) {
2233 BT_WARN("latency %d > 499", latency);
2234 return -EINVAL;
2235 }
2236
2237 if (latency > max_latency) {
2238 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2239 return -EINVAL;
2240 }
2241
2242 return 0;
2243 }
2244
2245 int hci_register_cb(struct hci_cb *hcb);
2246 int hci_unregister_cb(struct hci_cb *hcb);
2247
2248 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2249 const void *param);
2250
2251 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2252 const void *param);
2253 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2254 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2255 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2256
2257 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2258 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2259
2260 u32 hci_conn_get_phy(struct hci_conn *conn);
2261
2262 /* ----- HCI Sockets ----- */
2263 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2264 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2265 int flag, struct sock *skip_sk);
2266 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2267 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2268 void *data, u16 data_len, ktime_t tstamp,
2269 int flag, struct sock *skip_sk);
2270
2271 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2272
2273 #define HCI_MGMT_VAR_LEN BIT(0)
2274 #define HCI_MGMT_NO_HDEV BIT(1)
2275 #define HCI_MGMT_UNTRUSTED BIT(2)
2276 #define HCI_MGMT_UNCONFIGURED BIT(3)
2277 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2278
2279 struct hci_mgmt_handler {
2280 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2281 u16 data_len);
2282 size_t data_len;
2283 unsigned long flags;
2284 };
2285
2286 struct hci_mgmt_chan {
2287 struct list_head list;
2288 unsigned short channel;
2289 size_t handler_count;
2290 const struct hci_mgmt_handler *handlers;
2291 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2292 };
2293
2294 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2295 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2296
2297 /* Management interface */
2298 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2299 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2300 BIT(BDADDR_LE_RANDOM))
2301 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2302 BIT(BDADDR_LE_PUBLIC) | \
2303 BIT(BDADDR_LE_RANDOM))
2304
2305 /* These LE scan and inquiry parameters were chosen according to LE General
2306 * Discovery Procedure specification.
2307 */
2308 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */
2309 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */
2310 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */
2311 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */
2312 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */
2313 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */
2314 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */
2315 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */
2316 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */
2317 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */
2318 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */
2319 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */
2320 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */
2321 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */
2322 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */
2323 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */
2324 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2325 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2326 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2327 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2328 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2329 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2330 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2331 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2332 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2333 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2334 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2335 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2336
2337 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2338
2339 void mgmt_fill_version_info(void *ver);
2340 int mgmt_new_settings(struct hci_dev *hdev);
2341 void mgmt_index_added(struct hci_dev *hdev);
2342 void mgmt_index_removed(struct hci_dev *hdev);
2343 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2344 void mgmt_power_on(struct hci_dev *hdev, int err);
2345 void __mgmt_power_off(struct hci_dev *hdev);
2346 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2347 bool persistent);
2348 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2349 u8 *name, u8 name_len);
2350 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2351 u8 link_type, u8 addr_type, u8 reason,
2352 bool mgmt_connected);
2353 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2354 u8 link_type, u8 addr_type, u8 status);
2355 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
2356 u8 status);
2357 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2358 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2359 u8 status);
2360 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2361 u8 status);
2362 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2363 u8 link_type, u8 addr_type, u32 value,
2364 u8 confirm_hint);
2365 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2366 u8 link_type, u8 addr_type, u8 status);
2367 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2368 u8 link_type, u8 addr_type, u8 status);
2369 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2370 u8 link_type, u8 addr_type);
2371 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2372 u8 link_type, u8 addr_type, u8 status);
2373 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2374 u8 link_type, u8 addr_type, u8 status);
2375 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2376 u8 link_type, u8 addr_type, u32 passkey,
2377 u8 entered);
2378 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2379 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2380 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2381 u8 status);
2382 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2383 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2384 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2385 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2386 u64 instant);
2387 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2388 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2389 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2390 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2391 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2392 u8 addr_type);
2393 bool mgmt_powering_down(struct hci_dev *hdev);
2394 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2395 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2396 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2397 bool persistent);
2398 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2399 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2400 u16 max_interval, u16 latency, u16 timeout);
2401 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2402 bool mgmt_get_connectable(struct hci_dev *hdev);
2403 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2404 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2405 u8 instance);
2406 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2407 u8 instance);
2408 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2409 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2410 bdaddr_t *bdaddr, u8 addr_type);
2411
2412 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2413 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2414 u16 to_multiplier);
2415 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2416 __u8 ltk[16], __u8 key_size);
2417
2418 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2419 u8 *bdaddr_type);
2420
2421 #define SCO_AIRMODE_MASK 0x0003
2422 #define SCO_AIRMODE_CVSD 0x0000
2423 #define SCO_AIRMODE_TRANSP 0x0003
2424
2425 #define LOCAL_CODEC_ACL_MASK BIT(0)
2426 #define LOCAL_CODEC_SCO_MASK BIT(1)
2427
2428 #define TRANSPORT_TYPE_MAX 0x04
2429
2430 #endif /* __HCI_CORE_H */
2431