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 || bacmp(&c->dst, BDADDR_ANY) ||
1354 c->state != state)
1355 continue;
1356
1357 if (handle == c->iso_qos.bcast.big) {
1358 rcu_read_unlock();
1359 return c;
1360 }
1361 }
1362
1363 rcu_read_unlock();
1364
1365 return NULL;
1366 }
1367
1368 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1369 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1370 {
1371 struct hci_conn_hash *h = &hdev->conn_hash;
1372 struct hci_conn *c;
1373
1374 rcu_read_lock();
1375
1376 list_for_each_entry_rcu(c, &h->list, list) {
1377 if (c->type != BIS_LINK ||
1378 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1379 continue;
1380
1381 if (c->iso_qos.bcast.big == big) {
1382 rcu_read_unlock();
1383 return c;
1384 }
1385 }
1386 rcu_read_unlock();
1387
1388 return NULL;
1389 }
1390
1391 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1392 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1393 {
1394 struct hci_conn_hash *h = &hdev->conn_hash;
1395 struct hci_conn *c;
1396
1397 rcu_read_lock();
1398
1399 list_for_each_entry_rcu(c, &h->list, list) {
1400 if (c->type != BIS_LINK)
1401 continue;
1402
1403 /* Ignore the listen hcon, we are looking
1404 * for the child hcon that was created as
1405 * a result of the PA sync established event.
1406 */
1407 if (c->state == BT_LISTEN)
1408 continue;
1409
1410 if (c->sync_handle == sync_handle) {
1411 rcu_read_unlock();
1412 return c;
1413 }
1414 }
1415 rcu_read_unlock();
1416
1417 return NULL;
1418 }
1419
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1420 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1421 __u8 type, __u16 state)
1422 {
1423 struct hci_conn_hash *h = &hdev->conn_hash;
1424 struct hci_conn *c;
1425
1426 rcu_read_lock();
1427
1428 list_for_each_entry_rcu(c, &h->list, list) {
1429 if (c->type == type && c->state == state) {
1430 rcu_read_unlock();
1431 return c;
1432 }
1433 }
1434
1435 rcu_read_unlock();
1436
1437 return NULL;
1438 }
1439
1440 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)1441 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1442 hci_conn_func_t func, __u8 type,
1443 __u16 state, void *data)
1444 {
1445 struct hci_conn_hash *h = &hdev->conn_hash;
1446 struct hci_conn *c;
1447
1448 if (!func)
1449 return;
1450
1451 rcu_read_lock();
1452
1453 list_for_each_entry_rcu(c, &h->list, list) {
1454 if (c->type == type && c->state == state)
1455 func(c, data);
1456 }
1457
1458 rcu_read_unlock();
1459 }
1460
hci_conn_hash_list_flag(struct hci_dev * hdev,hci_conn_func_t func,__u8 type,__u8 flag,void * data)1461 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev,
1462 hci_conn_func_t func, __u8 type,
1463 __u8 flag, void *data)
1464 {
1465 struct hci_conn_hash *h = &hdev->conn_hash;
1466 struct hci_conn *c;
1467
1468 if (!func)
1469 return;
1470
1471 rcu_read_lock();
1472
1473 list_for_each_entry_rcu(c, &h->list, list) {
1474 if (c->type == type && test_bit(flag, &c->flags))
1475 func(c, data);
1476 }
1477
1478 rcu_read_unlock();
1479 }
1480
hci_lookup_le_connect(struct hci_dev * hdev)1481 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1482 {
1483 struct hci_conn_hash *h = &hdev->conn_hash;
1484 struct hci_conn *c;
1485
1486 rcu_read_lock();
1487
1488 list_for_each_entry_rcu(c, &h->list, list) {
1489 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1490 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1491 rcu_read_unlock();
1492 return c;
1493 }
1494 }
1495
1496 rcu_read_unlock();
1497
1498 return NULL;
1499 }
1500
1501 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1502 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1503 {
1504 struct hci_conn_hash *h = &hdev->conn_hash;
1505 struct hci_conn *c;
1506
1507 rcu_read_lock();
1508
1509 list_for_each_entry_rcu(c, &h->list, list) {
1510 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1511 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1512 rcu_read_unlock();
1513 return true;
1514 }
1515 }
1516
1517 rcu_read_unlock();
1518
1519 return false;
1520 }
1521
1522 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1523 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1524 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1525 bool hci_iso_setup_path(struct hci_conn *conn);
1526 int hci_le_create_cis_pending(struct hci_dev *hdev);
1527 int hci_conn_check_create_cis(struct hci_conn *conn);
1528
1529 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1530 u8 role, u16 handle);
1531 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1532 bdaddr_t *dst, u8 role);
1533 void hci_conn_del(struct hci_conn *conn);
1534 void hci_conn_hash_flush(struct hci_dev *hdev);
1535
1536 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1537 void hci_chan_del(struct hci_chan *chan);
1538 void hci_chan_list_flush(struct hci_conn *conn);
1539 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1540
1541 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1542 u8 dst_type, u8 sec_level,
1543 u16 conn_timeout,
1544 enum conn_reasons conn_reason);
1545 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1546 u8 dst_type, bool dst_resolved, u8 sec_level,
1547 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy);
1548 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1549 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1550 u8 sec_level, u8 auth_type,
1551 enum conn_reasons conn_reason, u16 timeout);
1552 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1553 __u16 setting, struct bt_codec *codec,
1554 u16 timeout);
1555 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1556 __u8 dst_type, struct bt_iso_qos *qos);
1557 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid,
1558 struct bt_iso_qos *qos,
1559 __u8 base_len, __u8 *base);
1560 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1561 __u8 dst_type, struct bt_iso_qos *qos);
1562 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1563 __u8 dst_type, __u8 sid,
1564 struct bt_iso_qos *qos,
1565 __u8 data_len, __u8 *data);
1566 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
1567 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
1568 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1569 struct bt_iso_qos *qos, __u16 sync_handle,
1570 __u8 num_bis, __u8 bis[]);
1571 int hci_conn_check_link_mode(struct hci_conn *conn);
1572 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1573 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1574 bool initiator);
1575 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1576
1577 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1578
1579 void hci_conn_failed(struct hci_conn *conn, u8 status);
1580 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1581
1582 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb);
1583 void hci_conn_tx_dequeue(struct hci_conn *conn);
1584 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset,
1585 const struct sockcm_cookie *sockc);
1586
hci_sockcm_init(struct sockcm_cookie * sockc,struct sock * sk)1587 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk)
1588 {
1589 *sockc = (struct sockcm_cookie) {
1590 .tsflags = READ_ONCE(sk->sk_tsflags),
1591 };
1592 }
1593
1594 /*
1595 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1596 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1597 * working or anything else. They just guarantee that the object is available
1598 * and can be dereferenced. So you can use its locks, local variables and any
1599 * other constant data.
1600 * Before accessing runtime data, you _must_ lock the object and then check that
1601 * it is still running. As soon as you release the locks, the connection might
1602 * get dropped, though.
1603 *
1604 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1605 * how long the underlying connection is held. So every channel that runs on the
1606 * hci_conn object calls this to prevent the connection from disappearing. As
1607 * long as you hold a device, you must also guarantee that you have a valid
1608 * reference to the device via hci_conn_get() (or the initial reference from
1609 * hci_conn_add()).
1610 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1611 * break because nobody cares for that. But this means, we cannot use
1612 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1613 */
1614
hci_conn_get(struct hci_conn * conn)1615 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1616 {
1617 get_device(&conn->dev);
1618 return conn;
1619 }
1620
hci_conn_put(struct hci_conn * conn)1621 static inline void hci_conn_put(struct hci_conn *conn)
1622 {
1623 put_device(&conn->dev);
1624 }
1625
hci_conn_hold(struct hci_conn * conn)1626 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1627 {
1628 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1629
1630 atomic_inc(&conn->refcnt);
1631 cancel_delayed_work(&conn->disc_work);
1632
1633 return conn;
1634 }
1635
hci_conn_drop(struct hci_conn * conn)1636 static inline void hci_conn_drop(struct hci_conn *conn)
1637 {
1638 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1639
1640 if (atomic_dec_and_test(&conn->refcnt)) {
1641 unsigned long timeo;
1642
1643 switch (conn->type) {
1644 case ACL_LINK:
1645 case LE_LINK:
1646 cancel_delayed_work(&conn->idle_work);
1647 if (conn->state == BT_CONNECTED) {
1648 timeo = conn->disc_timeout;
1649 if (!conn->out)
1650 timeo *= 2;
1651 } else {
1652 timeo = 0;
1653 }
1654 break;
1655
1656 default:
1657 timeo = 0;
1658 break;
1659 }
1660
1661 cancel_delayed_work(&conn->disc_work);
1662 queue_delayed_work(conn->hdev->workqueue,
1663 &conn->disc_work, timeo);
1664 }
1665 }
1666
1667 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1668 static inline void hci_dev_put(struct hci_dev *d)
1669 {
1670 BT_DBG("%s orig refcnt %d", d->name,
1671 kref_read(&d->dev.kobj.kref));
1672
1673 put_device(&d->dev);
1674 }
1675
hci_dev_hold(struct hci_dev * d)1676 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1677 {
1678 BT_DBG("%s orig refcnt %d", d->name,
1679 kref_read(&d->dev.kobj.kref));
1680
1681 get_device(&d->dev);
1682 return d;
1683 }
1684
1685 #define hci_dev_lock(d) mutex_lock(&d->lock)
1686 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1687
1688 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1689 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1690
hci_get_drvdata(struct hci_dev * hdev)1691 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1692 {
1693 return dev_get_drvdata(&hdev->dev);
1694 }
1695
hci_set_drvdata(struct hci_dev * hdev,void * data)1696 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1697 {
1698 dev_set_drvdata(&hdev->dev, data);
1699 }
1700
hci_get_priv(struct hci_dev * hdev)1701 static inline void *hci_get_priv(struct hci_dev *hdev)
1702 {
1703 return (char *)hdev + sizeof(*hdev);
1704 }
1705
1706 struct hci_dev *hci_dev_get(int index);
1707 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1708
1709 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1710
hci_alloc_dev(void)1711 static inline struct hci_dev *hci_alloc_dev(void)
1712 {
1713 return hci_alloc_dev_priv(0);
1714 }
1715
1716 void hci_free_dev(struct hci_dev *hdev);
1717 int hci_register_dev(struct hci_dev *hdev);
1718 void hci_unregister_dev(struct hci_dev *hdev);
1719 void hci_release_dev(struct hci_dev *hdev);
1720 int hci_register_suspend_notifier(struct hci_dev *hdev);
1721 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1722 int hci_suspend_dev(struct hci_dev *hdev);
1723 int hci_resume_dev(struct hci_dev *hdev);
1724 int hci_reset_dev(struct hci_dev *hdev);
1725 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1726 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1727 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1728 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1729
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1730 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1731 {
1732 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1733 hdev->msft_opcode = opcode;
1734 #endif
1735 }
1736
hci_set_aosp_capable(struct hci_dev * hdev)1737 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1738 {
1739 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1740 hdev->aosp_capable = true;
1741 #endif
1742 }
1743
hci_devcd_setup(struct hci_dev * hdev)1744 static inline void hci_devcd_setup(struct hci_dev *hdev)
1745 {
1746 #ifdef CONFIG_DEV_COREDUMP
1747 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1748 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1749 skb_queue_head_init(&hdev->dump.dump_q);
1750 #endif
1751 }
1752
1753 int hci_dev_open(__u16 dev);
1754 int hci_dev_close(__u16 dev);
1755 int hci_dev_do_close(struct hci_dev *hdev);
1756 int hci_dev_reset(__u16 dev);
1757 int hci_dev_reset_stat(__u16 dev);
1758 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1759 int hci_get_dev_list(void __user *arg);
1760 int hci_get_dev_info(void __user *arg);
1761 int hci_get_conn_list(void __user *arg);
1762 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1763 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1764 int hci_inquiry(void __user *arg);
1765
1766 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1767 bdaddr_t *bdaddr, u8 type);
1768 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1769 struct list_head *list, bdaddr_t *bdaddr,
1770 u8 type);
1771 struct bdaddr_list_with_flags *
1772 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1773 u8 type);
1774 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1775 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1776 u8 type, u8 *peer_irk, u8 *local_irk);
1777 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1778 u8 type, u32 flags);
1779 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1780 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1781 u8 type);
1782 void hci_bdaddr_list_clear(struct list_head *list);
1783
1784 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1785 bdaddr_t *addr, u8 addr_type);
1786 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1787 bdaddr_t *addr, u8 addr_type);
1788 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1789 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1790 void hci_conn_params_free(struct hci_conn_params *param);
1791
1792 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1793 void hci_pend_le_list_add(struct hci_conn_params *param,
1794 struct list_head *list);
1795 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1796 bdaddr_t *addr,
1797 u8 addr_type);
1798
1799 void hci_uuids_clear(struct hci_dev *hdev);
1800
1801 void hci_link_keys_clear(struct hci_dev *hdev);
1802 u8 *hci_conn_key_enc_size(struct hci_conn *conn);
1803 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1804 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1805 bdaddr_t *bdaddr, u8 *val, u8 type,
1806 u8 pin_len, bool *persistent);
1807 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1808 u8 addr_type, u8 type, u8 authenticated,
1809 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1810 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1811 u8 addr_type, u8 role);
1812 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1813 void hci_smp_ltks_clear(struct hci_dev *hdev);
1814 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1815
1816 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1817 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1818 u8 addr_type);
1819 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1820 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1821 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1822 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1823 void hci_blocked_keys_clear(struct hci_dev *hdev);
1824 void hci_smp_irks_clear(struct hci_dev *hdev);
1825
1826 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1827
1828 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1829 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1830 bdaddr_t *bdaddr, u8 bdaddr_type);
1831 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1832 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1833 u8 *hash256, u8 *rand256);
1834 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1835 u8 bdaddr_type);
1836
1837 void hci_adv_instances_clear(struct hci_dev *hdev);
1838 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1839 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid);
1840 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1841 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1842 u32 flags, u16 adv_data_len, u8 *adv_data,
1843 u16 scan_rsp_len, u8 *scan_rsp_data,
1844 u16 timeout, u16 duration, s8 tx_power,
1845 u32 min_interval, u32 max_interval,
1846 u8 mesh_handle);
1847 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid,
1848 u32 flags, u8 data_len, u8 *data,
1849 u32 min_interval, u32 max_interval);
1850 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1851 u16 adv_data_len, u8 *adv_data,
1852 u16 scan_rsp_len, u8 *scan_rsp_data);
1853 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1854 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1855 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1856 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1857
1858 void hci_adv_monitors_clear(struct hci_dev *hdev);
1859 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1860 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1861 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1862 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1863 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1864 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1865
1866 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1867
1868 void hci_init_sysfs(struct hci_dev *hdev);
1869 void hci_conn_init_sysfs(struct hci_conn *conn);
1870 void hci_conn_add_sysfs(struct hci_conn *conn);
1871 void hci_conn_del_sysfs(struct hci_conn *conn);
1872
1873 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1874 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1875
1876 /* ----- LMP capabilities ----- */
1877 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1878 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1879 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1880 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1881 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1882 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO)
1883 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1884 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1885 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1886 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1887 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1888 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1889 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1890 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1891 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1892 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1893 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1894 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1895 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1896 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1897 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1898 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1899 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1900 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1901 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1902
1903 /* ----- Extended LMP capabilities ----- */
1904 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1905 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1906 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1907 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1908 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1909 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1910
1911 /* ----- Host capabilities ----- */
1912 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1913 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1914 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1915 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1916
1917 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1918 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1919 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1920 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1921 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1922 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1923 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1924 !adv->rpa_expired)
1925
1926 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1927 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1928
1929 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1930
1931 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1932 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1933
1934 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1935 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1936 &(dev)->quirks))
1937
1938 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1939 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1940
1941 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1942
1943 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \
1944 (hdev->commands[39] & 0x04))
1945
1946 #define read_key_size_capable(dev) \
1947 ((dev)->commands[20] & 0x10 && \
1948 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1949
1950 #define read_voice_setting_capable(dev) \
1951 ((dev)->commands[9] & 0x04 && \
1952 !test_bit(HCI_QUIRK_BROKEN_READ_VOICE_SETTING, &(dev)->quirks))
1953
1954 /* Use enhanced synchronous connection if command is supported and its quirk
1955 * has not been set.
1956 */
1957 #define enhanced_sync_conn_capable(dev) \
1958 (((dev)->commands[29] & 0x08) && \
1959 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1960
1961 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1962 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1963 ((dev)->commands[37] & 0x40) && \
1964 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1965
1966 /* Use ext create connection if command is supported */
1967 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
1968 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
1969 /* Extended advertising support */
1970 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1971
1972 /* Maximum advertising length */
1973 #define max_adv_len(dev) \
1974 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1975
1976 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1977 *
1978 * C24: Mandatory if the LE Controller supports Connection State and either
1979 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1980 */
1981 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
1982 ext_adv_capable(dev)) && \
1983 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
1984 &(dev)->quirks))
1985
1986 /* Periodic advertising support */
1987 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1988
1989 /* CIS Master/Slave and BIS support */
1990 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1991 #define cis_capable(dev) \
1992 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1993 #define cis_central_capable(dev) \
1994 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1995 #define cis_peripheral_capable(dev) \
1996 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1997 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1998 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1999
2000 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
2001 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
2002
2003 /* ----- HCI protocols ----- */
2004 #define HCI_PROTO_DEFER 0x01
2005
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)2006 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
2007 __u8 type, __u8 *flags)
2008 {
2009 switch (type) {
2010 case ACL_LINK:
2011 return l2cap_connect_ind(hdev, bdaddr);
2012
2013 case SCO_LINK:
2014 case ESCO_LINK:
2015 return sco_connect_ind(hdev, bdaddr, flags);
2016
2017 case CIS_LINK:
2018 case BIS_LINK:
2019 return iso_connect_ind(hdev, bdaddr, flags);
2020
2021 default:
2022 BT_ERR("unknown link type %d", type);
2023 return -EINVAL;
2024 }
2025 }
2026
hci_proto_disconn_ind(struct hci_conn * conn)2027 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
2028 {
2029 if (conn->type != ACL_LINK && conn->type != LE_LINK)
2030 return HCI_ERROR_REMOTE_USER_TERM;
2031
2032 return l2cap_disconn_ind(conn);
2033 }
2034
2035 /* ----- HCI callbacks ----- */
2036 struct hci_cb {
2037 struct list_head list;
2038
2039 char *name;
2040
2041 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
2042 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
2043 void (*security_cfm) (struct hci_conn *conn, __u8 status,
2044 __u8 encrypt);
2045 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
2046 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
2047 };
2048
hci_connect_cfm(struct hci_conn * conn,__u8 status)2049 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
2050 {
2051 struct hci_cb *cb;
2052
2053 mutex_lock(&hci_cb_list_lock);
2054 list_for_each_entry(cb, &hci_cb_list, list) {
2055 if (cb->connect_cfm)
2056 cb->connect_cfm(conn, status);
2057 }
2058 mutex_unlock(&hci_cb_list_lock);
2059
2060 if (conn->connect_cfm_cb)
2061 conn->connect_cfm_cb(conn, status);
2062 }
2063
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)2064 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
2065 {
2066 struct hci_cb *cb;
2067
2068 mutex_lock(&hci_cb_list_lock);
2069 list_for_each_entry(cb, &hci_cb_list, list) {
2070 if (cb->disconn_cfm)
2071 cb->disconn_cfm(conn, reason);
2072 }
2073 mutex_unlock(&hci_cb_list_lock);
2074
2075 if (conn->disconn_cfm_cb)
2076 conn->disconn_cfm_cb(conn, reason);
2077 }
2078
hci_auth_cfm(struct hci_conn * conn,__u8 status)2079 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2080 {
2081 struct hci_cb *cb;
2082 __u8 encrypt;
2083
2084 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2085 return;
2086
2087 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2088
2089 mutex_lock(&hci_cb_list_lock);
2090 list_for_each_entry(cb, &hci_cb_list, list) {
2091 if (cb->security_cfm)
2092 cb->security_cfm(conn, status, encrypt);
2093 }
2094 mutex_unlock(&hci_cb_list_lock);
2095
2096 if (conn->security_cfm_cb)
2097 conn->security_cfm_cb(conn, status);
2098 }
2099
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2100 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2101 {
2102 struct hci_cb *cb;
2103 __u8 encrypt;
2104
2105 if (conn->state == BT_CONFIG) {
2106 if (!status)
2107 conn->state = BT_CONNECTED;
2108
2109 hci_connect_cfm(conn, status);
2110 hci_conn_drop(conn);
2111 return;
2112 }
2113
2114 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2115 encrypt = 0x00;
2116 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2117 encrypt = 0x02;
2118 else
2119 encrypt = 0x01;
2120
2121 if (!status) {
2122 if (conn->sec_level == BT_SECURITY_SDP)
2123 conn->sec_level = BT_SECURITY_LOW;
2124
2125 if (conn->pending_sec_level > conn->sec_level)
2126 conn->sec_level = conn->pending_sec_level;
2127 }
2128
2129 mutex_lock(&hci_cb_list_lock);
2130 list_for_each_entry(cb, &hci_cb_list, list) {
2131 if (cb->security_cfm)
2132 cb->security_cfm(conn, status, encrypt);
2133 }
2134 mutex_unlock(&hci_cb_list_lock);
2135
2136 if (conn->security_cfm_cb)
2137 conn->security_cfm_cb(conn, status);
2138 }
2139
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2140 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2141 {
2142 struct hci_cb *cb;
2143
2144 mutex_lock(&hci_cb_list_lock);
2145 list_for_each_entry(cb, &hci_cb_list, list) {
2146 if (cb->key_change_cfm)
2147 cb->key_change_cfm(conn, status);
2148 }
2149 mutex_unlock(&hci_cb_list_lock);
2150 }
2151
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2152 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2153 __u8 role)
2154 {
2155 struct hci_cb *cb;
2156
2157 mutex_lock(&hci_cb_list_lock);
2158 list_for_each_entry(cb, &hci_cb_list, list) {
2159 if (cb->role_switch_cfm)
2160 cb->role_switch_cfm(conn, status, role);
2161 }
2162 mutex_unlock(&hci_cb_list_lock);
2163 }
2164
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2165 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2166 {
2167 if (addr_type != ADDR_LE_DEV_RANDOM)
2168 return false;
2169
2170 if ((bdaddr->b[5] & 0xc0) == 0x40)
2171 return true;
2172
2173 return false;
2174 }
2175
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2176 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2177 {
2178 if (addr_type == ADDR_LE_DEV_PUBLIC)
2179 return true;
2180
2181 /* Check for Random Static address type */
2182 if ((addr->b[5] & 0xc0) == 0xc0)
2183 return true;
2184
2185 return false;
2186 }
2187
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2188 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2189 bdaddr_t *bdaddr, u8 addr_type)
2190 {
2191 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2192 return NULL;
2193
2194 return hci_find_irk_by_rpa(hdev, bdaddr);
2195 }
2196
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2197 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2198 u16 to_multiplier)
2199 {
2200 u16 max_latency;
2201
2202 if (min > max) {
2203 BT_WARN("min %d > max %d", min, max);
2204 return -EINVAL;
2205 }
2206
2207 if (min < 6) {
2208 BT_WARN("min %d < 6", min);
2209 return -EINVAL;
2210 }
2211
2212 if (max > 3200) {
2213 BT_WARN("max %d > 3200", max);
2214 return -EINVAL;
2215 }
2216
2217 if (to_multiplier < 10) {
2218 BT_WARN("to_multiplier %d < 10", to_multiplier);
2219 return -EINVAL;
2220 }
2221
2222 if (to_multiplier > 3200) {
2223 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2224 return -EINVAL;
2225 }
2226
2227 if (max >= to_multiplier * 8) {
2228 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2229 return -EINVAL;
2230 }
2231
2232 max_latency = (to_multiplier * 4 / max) - 1;
2233 if (latency > 499) {
2234 BT_WARN("latency %d > 499", latency);
2235 return -EINVAL;
2236 }
2237
2238 if (latency > max_latency) {
2239 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2240 return -EINVAL;
2241 }
2242
2243 return 0;
2244 }
2245
2246 int hci_register_cb(struct hci_cb *hcb);
2247 int hci_unregister_cb(struct hci_cb *hcb);
2248
2249 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2250 const void *param);
2251
2252 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2253 const void *param);
2254 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2255 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2256 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2257
2258 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2259 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2260
2261 u32 hci_conn_get_phy(struct hci_conn *conn);
2262
2263 /* ----- HCI Sockets ----- */
2264 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2265 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2266 int flag, struct sock *skip_sk);
2267 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2268 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2269 void *data, u16 data_len, ktime_t tstamp,
2270 int flag, struct sock *skip_sk);
2271
2272 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2273
2274 #define HCI_MGMT_VAR_LEN BIT(0)
2275 #define HCI_MGMT_NO_HDEV BIT(1)
2276 #define HCI_MGMT_UNTRUSTED BIT(2)
2277 #define HCI_MGMT_UNCONFIGURED BIT(3)
2278 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2279
2280 struct hci_mgmt_handler {
2281 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2282 u16 data_len);
2283 size_t data_len;
2284 unsigned long flags;
2285 };
2286
2287 struct hci_mgmt_chan {
2288 struct list_head list;
2289 unsigned short channel;
2290 size_t handler_count;
2291 const struct hci_mgmt_handler *handlers;
2292 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2293 };
2294
2295 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2296 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2297
2298 /* Management interface */
2299 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2300 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2301 BIT(BDADDR_LE_RANDOM))
2302 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2303 BIT(BDADDR_LE_PUBLIC) | \
2304 BIT(BDADDR_LE_RANDOM))
2305
2306 /* These LE scan and inquiry parameters were chosen according to LE General
2307 * Discovery Procedure specification.
2308 */
2309 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */
2310 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */
2311 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */
2312 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */
2313 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */
2314 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */
2315 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */
2316 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */
2317 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */
2318 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */
2319 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */
2320 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */
2321 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */
2322 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */
2323 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */
2324 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */
2325 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2326 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2327 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2328 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2329 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2330 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2331 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2332 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2333 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2334 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2335 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2336 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2337
2338 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2339
2340 void mgmt_fill_version_info(void *ver);
2341 int mgmt_new_settings(struct hci_dev *hdev);
2342 void mgmt_index_added(struct hci_dev *hdev);
2343 void mgmt_index_removed(struct hci_dev *hdev);
2344 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2345 void mgmt_power_on(struct hci_dev *hdev, int err);
2346 void __mgmt_power_off(struct hci_dev *hdev);
2347 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2348 bool persistent);
2349 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2350 u8 *name, u8 name_len);
2351 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2352 u8 link_type, u8 addr_type, u8 reason,
2353 bool mgmt_connected);
2354 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2355 u8 link_type, u8 addr_type, u8 status);
2356 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
2357 u8 status);
2358 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2359 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2360 u8 status);
2361 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2362 u8 status);
2363 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2364 u8 link_type, u8 addr_type, u32 value,
2365 u8 confirm_hint);
2366 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2367 u8 link_type, u8 addr_type, u8 status);
2368 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2369 u8 link_type, u8 addr_type, u8 status);
2370 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2371 u8 link_type, u8 addr_type);
2372 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2373 u8 link_type, u8 addr_type, u8 status);
2374 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2375 u8 link_type, u8 addr_type, u8 status);
2376 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2377 u8 link_type, u8 addr_type, u32 passkey,
2378 u8 entered);
2379 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2380 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2381 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2382 u8 status);
2383 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2384 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2385 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2386 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2387 u64 instant);
2388 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2389 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2390 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2391 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2392 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2393 u8 addr_type);
2394 bool mgmt_powering_down(struct hci_dev *hdev);
2395 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2396 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2397 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2398 bool persistent);
2399 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2400 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2401 u16 max_interval, u16 latency, u16 timeout);
2402 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2403 bool mgmt_get_connectable(struct hci_dev *hdev);
2404 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2405 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2406 u8 instance);
2407 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2408 u8 instance);
2409 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2410 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2411 bdaddr_t *bdaddr, u8 addr_type);
2412
2413 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2414 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2415 u16 to_multiplier);
2416 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2417 __u8 ltk[16], __u8 key_size);
2418
2419 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2420 u8 *bdaddr_type);
2421
2422 #define SCO_AIRMODE_MASK 0x0003
2423 #define SCO_AIRMODE_CVSD 0x0000
2424 #define SCO_AIRMODE_TRANSP 0x0003
2425
2426 #define LOCAL_CODEC_ACL_MASK BIT(0)
2427 #define LOCAL_CODEC_SCO_MASK BIT(1)
2428
2429 #define TRANSPORT_TYPE_MAX 0x04
2430
2431 #endif /* __HCI_CORE_H */
2432