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 #include <linux/android_kabi.h>
34
35 #include <net/bluetooth/hci.h>
36 #include <net/bluetooth/hci_drv.h>
37 #include <net/bluetooth/hci_sync.h>
38 #include <net/bluetooth/hci_sock.h>
39 #include <net/bluetooth/coredump.h>
40
41 /* HCI priority */
42 #define HCI_PRIO_MAX 7
43
44 /* HCI maximum id value */
45 #define HCI_MAX_ID 10000
46
47 /* HCI Core structures */
48 struct inquiry_data {
49 bdaddr_t bdaddr;
50 __u8 pscan_rep_mode;
51 __u8 pscan_period_mode;
52 __u8 pscan_mode;
53 __u8 dev_class[3];
54 __le16 clock_offset;
55 __s8 rssi;
56 __u8 ssp_mode;
57 };
58
59 struct inquiry_entry {
60 struct list_head all; /* inq_cache.all */
61 struct list_head list; /* unknown or resolve */
62 enum {
63 NAME_NOT_KNOWN,
64 NAME_NEEDED,
65 NAME_PENDING,
66 NAME_KNOWN,
67 } name_state;
68 __u32 timestamp;
69 struct inquiry_data data;
70 };
71
72 struct discovery_state {
73 int type;
74 enum {
75 DISCOVERY_STOPPED,
76 DISCOVERY_STARTING,
77 DISCOVERY_FINDING,
78 DISCOVERY_RESOLVING,
79 DISCOVERY_STOPPING,
80 } state;
81 struct list_head all; /* All devices found during inquiry */
82 struct list_head unknown; /* Name state not known */
83 struct list_head resolve; /* Name needs to be resolved */
84 __u32 timestamp;
85 bdaddr_t last_adv_addr;
86 u8 last_adv_addr_type;
87 s8 last_adv_rssi;
88 u32 last_adv_flags;
89 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH];
90 u8 last_adv_data_len;
91 bool report_invalid_rssi;
92 bool result_filtering;
93 bool limited;
94 s8 rssi;
95 u16 uuid_count;
96 u8 (*uuids)[16];
97 unsigned long name_resolve_timeout;
98 };
99
100 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
101
102 enum suspend_tasks {
103 SUSPEND_PAUSE_DISCOVERY,
104 SUSPEND_UNPAUSE_DISCOVERY,
105
106 SUSPEND_PAUSE_ADVERTISING,
107 SUSPEND_UNPAUSE_ADVERTISING,
108
109 SUSPEND_SCAN_DISABLE,
110 SUSPEND_SCAN_ENABLE,
111 SUSPEND_DISCONNECTING,
112
113 SUSPEND_POWERING_DOWN,
114
115 SUSPEND_PREPARE_NOTIFIER,
116
117 SUSPEND_SET_ADV_FILTER,
118 __SUSPEND_NUM_TASKS
119 };
120
121 enum suspended_state {
122 BT_RUNNING = 0,
123 BT_SUSPEND_DISCONNECT,
124 BT_SUSPEND_CONFIGURE_WAKE,
125 };
126
127 struct hci_conn_hash {
128 struct list_head list;
129 unsigned int acl_num;
130 unsigned int sco_num;
131 unsigned int iso_num;
132 unsigned int le_num;
133 unsigned int le_num_peripheral;
134 };
135
136 struct bdaddr_list {
137 struct list_head list;
138 bdaddr_t bdaddr;
139 u8 bdaddr_type;
140 };
141
142 struct codec_list {
143 struct list_head list;
144 u8 id;
145 __u16 cid;
146 __u16 vid;
147 u8 transport;
148 u8 num_caps;
149 u32 len;
150 struct hci_codec_caps caps[];
151 };
152
153 struct bdaddr_list_with_irk {
154 struct list_head list;
155 bdaddr_t bdaddr;
156 u8 bdaddr_type;
157 u8 peer_irk[16];
158 u8 local_irk[16];
159 };
160
161 /* Bitmask of connection flags */
162 enum hci_conn_flags {
163 HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
164 HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
165 };
166 typedef u8 hci_conn_flags_t;
167
168 struct bdaddr_list_with_flags {
169 struct list_head list;
170 bdaddr_t bdaddr;
171 u8 bdaddr_type;
172 hci_conn_flags_t flags;
173 };
174
175 struct bt_uuid {
176 struct list_head list;
177 u8 uuid[16];
178 u8 size;
179 u8 svc_hint;
180 };
181
182 struct blocked_key {
183 struct list_head list;
184 struct rcu_head rcu;
185 u8 type;
186 u8 val[16];
187 };
188
189 struct smp_csrk {
190 bdaddr_t bdaddr;
191 u8 bdaddr_type;
192 u8 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 __u32 flags;
247 __u16 timeout;
248 __u16 remaining_time;
249 __u16 duration;
250 __u16 adv_data_len;
251 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
252 bool adv_data_changed;
253 __u16 scan_rsp_len;
254 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
255 bool scan_rsp_changed;
256 __u16 per_adv_data_len;
257 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
258 __s8 tx_power;
259 __u32 min_interval;
260 __u32 max_interval;
261 bdaddr_t random_addr;
262 bool rpa_expired;
263 struct delayed_work rpa_expired_cb;
264 };
265
266 #define HCI_MAX_ADV_INSTANCES 5
267 #define HCI_DEFAULT_ADV_DURATION 2
268
269 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
270
271 #define DATA_CMP(_d1, _l1, _d2, _l2) \
272 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
273
274 #define ADV_DATA_CMP(_adv, _data, _len) \
275 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
276
277 #define SCAN_RSP_CMP(_adv, _data, _len) \
278 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
279
280 struct monitored_device {
281 struct list_head list;
282
283 bdaddr_t bdaddr;
284 __u8 addr_type;
285 __u16 handle;
286 bool notified;
287 };
288
289 struct adv_pattern {
290 struct list_head list;
291 __u8 ad_type;
292 __u8 offset;
293 __u8 length;
294 __u8 value[HCI_MAX_EXT_AD_LENGTH];
295 };
296
297 struct adv_rssi_thresholds {
298 __s8 low_threshold;
299 __s8 high_threshold;
300 __u16 low_threshold_timeout;
301 __u16 high_threshold_timeout;
302 __u8 sampling_period;
303 };
304
305 struct adv_monitor {
306 struct list_head patterns;
307 struct adv_rssi_thresholds rssi;
308 __u16 handle;
309
310 enum {
311 ADV_MONITOR_STATE_NOT_REGISTERED,
312 ADV_MONITOR_STATE_REGISTERED,
313 ADV_MONITOR_STATE_OFFLOADED
314 } state;
315 };
316
317 #define HCI_MIN_ADV_MONITOR_HANDLE 1
318 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
319 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
320 #define HCI_ADV_MONITOR_EXT_NONE 1
321 #define HCI_ADV_MONITOR_EXT_MSFT 2
322
323 #define HCI_MAX_SHORT_NAME_LENGTH 10
324
325 #define HCI_CONN_HANDLE_MAX 0x0eff
326 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX)
327
328 /* Min encryption key size to match with SMP */
329 #define HCI_MIN_ENC_KEY_SIZE 7
330
331 /* Default LE RPA expiry time, 15 minutes */
332 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
333
334 /* Default min/max age of connection information (1s/3s) */
335 #define DEFAULT_CONN_INFO_MIN_AGE 1000
336 #define DEFAULT_CONN_INFO_MAX_AGE 3000
337 /* Default authenticated payload timeout 30s */
338 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
339
340 #define HCI_MAX_PAGES 3
341
342 struct hci_dev {
343 struct list_head list;
344 struct mutex lock;
345
346 struct ida unset_handle_ida;
347
348 const char *name;
349 unsigned long flags;
350 __u16 id;
351 __u8 bus;
352 bdaddr_t bdaddr;
353 bdaddr_t setup_addr;
354 bdaddr_t public_addr;
355 bdaddr_t random_addr;
356 bdaddr_t static_addr;
357 __u8 adv_addr_type;
358 __u8 dev_name[HCI_MAX_NAME_LENGTH];
359 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
360 __u8 eir[HCI_MAX_EIR_LENGTH];
361 __u16 appearance;
362 __u8 dev_class[3];
363 __u8 major_class;
364 __u8 minor_class;
365 __u8 max_page;
366 __u8 features[HCI_MAX_PAGES][8];
367 __u8 le_features[8];
368 __u8 le_accept_list_size;
369 __u8 le_resolv_list_size;
370 __u8 le_num_of_adv_sets;
371 __u8 le_states[8];
372 __u8 mesh_ad_types[16];
373 __u8 mesh_send_ref;
374 __u8 commands[64];
375 __u8 hci_ver;
376 __u16 hci_rev;
377 __u8 lmp_ver;
378 __u16 manufacturer;
379 __u16 lmp_subver;
380 __u16 voice_setting;
381 __u8 num_iac;
382 __u16 stored_max_keys;
383 __u16 stored_num_keys;
384 __u8 io_capability;
385 __s8 inq_tx_power;
386 __u8 err_data_reporting;
387 __u16 page_scan_interval;
388 __u16 page_scan_window;
389 __u8 page_scan_type;
390 __u8 le_adv_channel_map;
391 __u16 le_adv_min_interval;
392 __u16 le_adv_max_interval;
393 __u8 le_scan_type;
394 __u16 le_scan_interval;
395 __u16 le_scan_window;
396 __u16 le_scan_int_suspend;
397 __u16 le_scan_window_suspend;
398 __u16 le_scan_int_discovery;
399 __u16 le_scan_window_discovery;
400 __u16 le_scan_int_adv_monitor;
401 __u16 le_scan_window_adv_monitor;
402 __u16 le_scan_int_connect;
403 __u16 le_scan_window_connect;
404 __u16 le_conn_min_interval;
405 __u16 le_conn_max_interval;
406 __u16 le_conn_latency;
407 __u16 le_supv_timeout;
408 __u16 le_def_tx_len;
409 __u16 le_def_tx_time;
410 __u16 le_max_tx_len;
411 __u16 le_max_tx_time;
412 __u16 le_max_rx_len;
413 __u16 le_max_rx_time;
414 __u8 le_max_key_size;
415 __u8 le_min_key_size;
416 __u16 discov_interleaved_timeout;
417 __u16 conn_info_min_age;
418 __u16 conn_info_max_age;
419 __u16 auth_payload_timeout;
420 __u8 min_enc_key_size;
421 __u8 max_enc_key_size;
422 __u8 pairing_opts;
423 __u8 ssp_debug_mode;
424 __u8 hw_error_code;
425 __u32 clock;
426 __u16 advmon_allowlist_duration;
427 __u16 advmon_no_filter_duration;
428 __u8 enable_advmon_interleave_scan;
429
430 __u16 devid_source;
431 __u16 devid_vendor;
432 __u16 devid_product;
433 __u16 devid_version;
434
435 __u8 def_page_scan_type;
436 __u16 def_page_scan_int;
437 __u16 def_page_scan_window;
438 __u8 def_inq_scan_type;
439 __u16 def_inq_scan_int;
440 __u16 def_inq_scan_window;
441 __u16 def_br_lsto;
442 __u16 def_page_timeout;
443 __u16 def_multi_adv_rotation_duration;
444 __u16 def_le_autoconnect_timeout;
445 __s8 min_le_tx_power;
446 __s8 max_le_tx_power;
447
448 __u16 pkt_type;
449 __u16 esco_type;
450 __u16 link_policy;
451 __u16 link_mode;
452
453 __u32 idle_timeout;
454 __u16 sniff_min_interval;
455 __u16 sniff_max_interval;
456
457 unsigned int auto_accept_delay;
458
459 unsigned long quirks;
460
461 atomic_t cmd_cnt;
462 unsigned int acl_cnt;
463 unsigned int sco_cnt;
464 unsigned int le_cnt;
465 unsigned int iso_cnt;
466
467 unsigned int acl_mtu;
468 unsigned int sco_mtu;
469 unsigned int le_mtu;
470 unsigned int iso_mtu;
471 unsigned int acl_pkts;
472 unsigned int sco_pkts;
473 unsigned int le_pkts;
474 unsigned int iso_pkts;
475
476 unsigned long acl_last_tx;
477 unsigned long le_last_tx;
478
479 __u8 le_tx_def_phys;
480 __u8 le_rx_def_phys;
481
482 struct workqueue_struct *workqueue;
483 struct workqueue_struct *req_workqueue;
484
485 struct work_struct power_on;
486 struct delayed_work power_off;
487 struct work_struct error_reset;
488 struct work_struct cmd_sync_work;
489 struct list_head cmd_sync_work_list;
490 struct mutex cmd_sync_work_lock;
491 struct mutex unregister_lock;
492 struct work_struct cmd_sync_cancel_work;
493 struct work_struct reenable_adv_work;
494
495 __u16 discov_timeout;
496 struct delayed_work discov_off;
497
498 struct delayed_work service_cache;
499
500 struct delayed_work cmd_timer;
501 struct delayed_work ncmd_timer;
502
503 struct work_struct rx_work;
504 struct work_struct cmd_work;
505 struct work_struct tx_work;
506
507 struct delayed_work le_scan_disable;
508
509 struct sk_buff_head rx_q;
510 struct sk_buff_head raw_q;
511 struct sk_buff_head cmd_q;
512
513 struct sk_buff *sent_cmd;
514 struct sk_buff *recv_event;
515
516 struct mutex req_lock;
517 wait_queue_head_t req_wait_q;
518 __u32 req_status;
519 __u32 req_result;
520 struct sk_buff *req_skb;
521 struct sk_buff *req_rsp;
522
523 void *smp_data;
524 void *smp_bredr_data;
525
526 struct discovery_state discovery;
527
528 bool discovery_paused;
529 int advertising_old_state;
530 bool advertising_paused;
531
532 struct notifier_block suspend_notifier;
533 enum suspended_state suspend_state_next;
534 enum suspended_state suspend_state;
535 bool scanning_paused;
536 bool suspended;
537 u8 wake_reason;
538 bdaddr_t wake_addr;
539 u8 wake_addr_type;
540
541 struct hci_conn_hash conn_hash;
542
543 struct list_head mesh_pending;
544 struct list_head mgmt_pending;
545 struct list_head reject_list;
546 struct list_head accept_list;
547 struct list_head uuids;
548 struct list_head link_keys;
549 struct list_head long_term_keys;
550 struct list_head identity_resolving_keys;
551 struct list_head remote_oob_data;
552 struct list_head le_accept_list;
553 struct list_head le_resolv_list;
554 struct list_head le_conn_params;
555 struct list_head pend_le_conns;
556 struct list_head pend_le_reports;
557 struct list_head blocked_keys;
558 struct list_head local_codecs;
559
560 struct hci_dev_stats stat;
561
562 atomic_t promisc;
563
564 const char *hw_info;
565 const char *fw_info;
566 struct dentry *debugfs;
567
568 struct hci_devcoredump dump;
569
570 struct device dev;
571
572 struct rfkill *rfkill;
573
574 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
575 hci_conn_flags_t conn_flags;
576
577 __s8 adv_tx_power;
578 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
579 __u8 adv_data_len;
580 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
581 __u8 scan_rsp_data_len;
582 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
583 __u8 per_adv_data_len;
584
585 struct list_head adv_instances;
586 unsigned int adv_instance_cnt;
587 __u8 cur_adv_instance;
588 __u16 adv_instance_timeout;
589 struct delayed_work adv_instance_expire;
590
591 struct idr adv_monitors_idr;
592 unsigned int adv_monitors_cnt;
593
594 __u8 irk[16];
595 __u32 rpa_timeout;
596 struct delayed_work rpa_expired;
597 bdaddr_t rpa;
598
599 struct delayed_work mesh_send_done;
600
601 enum {
602 INTERLEAVE_SCAN_NONE,
603 INTERLEAVE_SCAN_NO_FILTER,
604 INTERLEAVE_SCAN_ALLOWLIST
605 } interleave_scan_state;
606
607 struct delayed_work interleave_scan;
608
609 struct list_head monitored_devices;
610 bool advmon_pend_notify;
611
612 struct hci_drv *hci_drv;
613
614 #if IS_ENABLED(CONFIG_BT_LEDS)
615 struct led_trigger *power_led;
616 #endif
617
618 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
619 __u16 msft_opcode;
620 void *msft_data;
621 bool msft_curve_validity;
622 #endif
623
624 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
625 bool aosp_capable;
626 bool aosp_quality_report;
627 #endif
628
629 int (*open)(struct hci_dev *hdev);
630 int (*close)(struct hci_dev *hdev);
631 int (*flush)(struct hci_dev *hdev);
632 int (*setup)(struct hci_dev *hdev);
633 int (*shutdown)(struct hci_dev *hdev);
634 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
635 void (*notify)(struct hci_dev *hdev, unsigned int evt);
636 void (*hw_error)(struct hci_dev *hdev, u8 code);
637 int (*post_init)(struct hci_dev *hdev);
638 int (*set_diag)(struct hci_dev *hdev, bool enable);
639 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
640 void (*reset)(struct hci_dev *hdev);
641 bool (*wakeup)(struct hci_dev *hdev);
642 int (*set_quality_report)(struct hci_dev *hdev, bool enable);
643 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
644 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
645 struct bt_codec *codec, __u8 *vnd_len,
646 __u8 **vnd_data);
647 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb);
648
649 ANDROID_KABI_RESERVE(1);
650 ANDROID_KABI_RESERVE(2);
651 ANDROID_KABI_RESERVE(3);
652 ANDROID_KABI_RESERVE(4);
653 };
654
655 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
656
657 enum conn_reasons {
658 CONN_REASON_PAIR_DEVICE,
659 CONN_REASON_L2CAP_CHAN,
660 CONN_REASON_SCO_CONNECT,
661 CONN_REASON_ISO_CONNECT,
662 };
663
664 struct hci_conn {
665 struct list_head list;
666
667 atomic_t refcnt;
668
669 bdaddr_t dst;
670 __u8 dst_type;
671 bdaddr_t src;
672 __u8 src_type;
673 bdaddr_t init_addr;
674 __u8 init_addr_type;
675 bdaddr_t resp_addr;
676 __u8 resp_addr_type;
677 __u8 adv_instance;
678 __u16 handle;
679 __u16 sync_handle;
680 __u8 sid;
681 __u16 state;
682 __u16 mtu;
683 __u8 mode;
684 __u8 type;
685 __u8 role;
686 bool out;
687 __u8 attempt;
688 __u8 dev_class[3];
689 __u8 features[HCI_MAX_PAGES][8];
690 __u16 pkt_type;
691 __u16 link_policy;
692 __u8 key_type;
693 __u8 auth_type;
694 __u8 sec_level;
695 __u8 pending_sec_level;
696 __u8 pin_length;
697 __u8 enc_key_size;
698 __u8 io_capability;
699 __u32 passkey_notify;
700 __u8 passkey_entered;
701 __u16 disc_timeout;
702 __u16 conn_timeout;
703 __u16 setting;
704 __u16 auth_payload_timeout;
705 __u16 le_conn_min_interval;
706 __u16 le_conn_max_interval;
707 __u16 le_conn_interval;
708 __u16 le_conn_latency;
709 __u16 le_supv_timeout;
710 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
711 __u8 le_adv_data_len;
712 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN];
713 __u16 le_per_adv_data_len;
714 __u16 le_per_adv_data_offset;
715 __u8 le_adv_phy;
716 __u8 le_adv_sec_phy;
717 __u8 le_tx_phy;
718 __u8 le_rx_phy;
719 __s8 rssi;
720 __s8 tx_power;
721 __s8 max_tx_power;
722 struct bt_iso_qos iso_qos;
723 __u8 num_bis;
724 __u8 bis[HCI_MAX_ISO_BIS];
725
726 unsigned long flags;
727
728 enum conn_reasons conn_reason;
729 __u8 abort_reason;
730
731 __u32 clock;
732 __u16 clock_accuracy;
733
734 unsigned long conn_info_timestamp;
735
736 __u8 remote_cap;
737 __u8 remote_auth;
738 __u8 remote_id;
739
740 unsigned int sent;
741
742 struct sk_buff_head data_q;
743 struct list_head chan_list;
744
745 struct delayed_work disc_work;
746 struct delayed_work auto_accept_work;
747 struct delayed_work idle_work;
748 struct delayed_work le_conn_timeout;
749
750 struct device dev;
751 struct dentry *debugfs;
752
753 struct hci_dev *hdev;
754 void *l2cap_data;
755 void *sco_data;
756 void *iso_data;
757
758 struct list_head link_list;
759 struct hci_conn *parent;
760 struct hci_link *link;
761
762 struct bt_codec codec;
763
764 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
765 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
766 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
767
768 void (*cleanup)(struct hci_conn *conn);
769
770 ANDROID_KABI_RESERVE(1);
771 ANDROID_KABI_RESERVE(2);
772 ANDROID_KABI_RESERVE(3);
773 ANDROID_KABI_RESERVE(4);
774 };
775
776 struct hci_link {
777 struct list_head list;
778 struct hci_conn *conn;
779 };
780
781 struct hci_chan {
782 struct list_head list;
783 __u16 handle;
784 struct hci_conn *conn;
785 struct sk_buff_head data_q;
786 unsigned int sent;
787 __u8 state;
788
789 ANDROID_KABI_RESERVE(1);
790 };
791
792 struct hci_conn_params {
793 struct list_head list;
794 struct list_head action;
795
796 bdaddr_t addr;
797 u8 addr_type;
798
799 u16 conn_min_interval;
800 u16 conn_max_interval;
801 u16 conn_latency;
802 u16 supervision_timeout;
803
804 enum {
805 HCI_AUTO_CONN_DISABLED,
806 HCI_AUTO_CONN_REPORT,
807 HCI_AUTO_CONN_DIRECT,
808 HCI_AUTO_CONN_ALWAYS,
809 HCI_AUTO_CONN_LINK_LOSS,
810 HCI_AUTO_CONN_EXPLICIT,
811 } auto_connect;
812
813 struct hci_conn *conn;
814 bool explicit_connect;
815 /* Accessed without hdev->lock: */
816 hci_conn_flags_t flags;
817 u8 privacy_mode;
818
819 ANDROID_KABI_RESERVE(1);
820 };
821
822 extern struct list_head hci_dev_list;
823 extern struct list_head hci_cb_list;
824 extern rwlock_t hci_dev_list_lock;
825 extern struct mutex hci_cb_list_lock;
826
827 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
828 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
829 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
830 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
831 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
832 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
833 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
834
835 #define hci_dev_clear_volatile_flags(hdev) \
836 do { \
837 hci_dev_clear_flag((hdev), HCI_LE_SCAN); \
838 hci_dev_clear_flag((hdev), HCI_LE_ADV); \
839 hci_dev_clear_flag((hdev), HCI_LL_RPA_RESOLUTION); \
840 hci_dev_clear_flag((hdev), HCI_PERIODIC_INQ); \
841 hci_dev_clear_flag((hdev), HCI_QUALITY_REPORT); \
842 } while (0)
843
844 #define hci_dev_le_state_simultaneous(hdev) \
845 (!test_bit(HCI_QUIRK_BROKEN_LE_STATES, &(hdev)->quirks) && \
846 ((hdev)->le_states[4] & 0x08) && /* Central */ \
847 ((hdev)->le_states[4] & 0x40) && /* Peripheral */ \
848 ((hdev)->le_states[3] & 0x10)) /* Simultaneous */
849
850 /* ----- HCI interface to upper protocols ----- */
851 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
852 int l2cap_disconn_ind(struct hci_conn *hcon);
853 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
854
855 #if IS_ENABLED(CONFIG_BT_BREDR)
856 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
857 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
858 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)859 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
860 __u8 *flags)
861 {
862 return 0;
863 }
864
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)865 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
866 {
867 }
868 #endif
869
870 #if IS_ENABLED(CONFIG_BT_LE)
871 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
872 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
873 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)874 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
875 __u8 *flags)
876 {
877 return 0;
878 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)879 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
880 u16 flags)
881 {
882 }
883 #endif
884
885 /* ----- Inquiry cache ----- */
886 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
887 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
888
discovery_init(struct hci_dev * hdev)889 static inline void discovery_init(struct hci_dev *hdev)
890 {
891 hdev->discovery.state = DISCOVERY_STOPPED;
892 INIT_LIST_HEAD(&hdev->discovery.all);
893 INIT_LIST_HEAD(&hdev->discovery.unknown);
894 INIT_LIST_HEAD(&hdev->discovery.resolve);
895 hdev->discovery.report_invalid_rssi = true;
896 hdev->discovery.rssi = HCI_RSSI_INVALID;
897 }
898
hci_discovery_filter_clear(struct hci_dev * hdev)899 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
900 {
901 hdev->discovery.result_filtering = false;
902 hdev->discovery.report_invalid_rssi = true;
903 hdev->discovery.rssi = HCI_RSSI_INVALID;
904 hdev->discovery.uuid_count = 0;
905 kfree(hdev->discovery.uuids);
906 hdev->discovery.uuids = NULL;
907 }
908
909 bool hci_discovery_active(struct hci_dev *hdev);
910
911 void hci_discovery_set_state(struct hci_dev *hdev, int state);
912
inquiry_cache_empty(struct hci_dev * hdev)913 static inline int inquiry_cache_empty(struct hci_dev *hdev)
914 {
915 return list_empty(&hdev->discovery.all);
916 }
917
inquiry_cache_age(struct hci_dev * hdev)918 static inline long inquiry_cache_age(struct hci_dev *hdev)
919 {
920 struct discovery_state *c = &hdev->discovery;
921 return jiffies - c->timestamp;
922 }
923
inquiry_entry_age(struct inquiry_entry * e)924 static inline long inquiry_entry_age(struct inquiry_entry *e)
925 {
926 return jiffies - e->timestamp;
927 }
928
929 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
930 bdaddr_t *bdaddr);
931 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
932 bdaddr_t *bdaddr);
933 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
934 bdaddr_t *bdaddr,
935 int state);
936 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
937 struct inquiry_entry *ie);
938 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
939 bool name_known);
940 void hci_inquiry_cache_flush(struct hci_dev *hdev);
941
942 /* ----- HCI Connections ----- */
943 enum {
944 HCI_CONN_AUTH_PEND,
945 HCI_CONN_ENCRYPT_PEND,
946 HCI_CONN_RSWITCH_PEND,
947 HCI_CONN_MODE_CHANGE_PEND,
948 HCI_CONN_SCO_SETUP_PEND,
949 HCI_CONN_MGMT_CONNECTED,
950 HCI_CONN_SSP_ENABLED,
951 HCI_CONN_SC_ENABLED,
952 HCI_CONN_AES_CCM,
953 HCI_CONN_POWER_SAVE,
954 HCI_CONN_FLUSH_KEY,
955 HCI_CONN_ENCRYPT,
956 HCI_CONN_AUTH,
957 HCI_CONN_SECURE,
958 HCI_CONN_FIPS,
959 HCI_CONN_STK_ENCRYPT,
960 HCI_CONN_AUTH_INITIATOR,
961 HCI_CONN_DROP,
962 HCI_CONN_CANCEL,
963 HCI_CONN_PARAM_REMOVAL_PEND,
964 HCI_CONN_NEW_LINK_KEY,
965 HCI_CONN_SCANNING,
966 HCI_CONN_AUTH_FAILURE,
967 HCI_CONN_PER_ADV,
968 HCI_CONN_BIG_CREATED,
969 HCI_CONN_CREATE_CIS,
970 HCI_CONN_CREATE_BIG_SYNC,
971 HCI_CONN_BIG_SYNC,
972 HCI_CONN_BIG_SYNC_FAILED,
973 HCI_CONN_CREATE_PA_SYNC,
974 HCI_CONN_PA_SYNC,
975 HCI_CONN_PA_SYNC_FAILED,
976 };
977
hci_conn_ssp_enabled(struct hci_conn * conn)978 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
979 {
980 struct hci_dev *hdev = conn->hdev;
981 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
982 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
983 }
984
hci_conn_sc_enabled(struct hci_conn * conn)985 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
986 {
987 struct hci_dev *hdev = conn->hdev;
988 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
989 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
990 }
991
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)992 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
993 {
994 struct hci_conn_hash *h = &hdev->conn_hash;
995 list_add_tail_rcu(&c->list, &h->list);
996 switch (c->type) {
997 case ACL_LINK:
998 h->acl_num++;
999 break;
1000 case LE_LINK:
1001 h->le_num++;
1002 if (c->role == HCI_ROLE_SLAVE)
1003 h->le_num_peripheral++;
1004 break;
1005 case SCO_LINK:
1006 case ESCO_LINK:
1007 h->sco_num++;
1008 break;
1009 case ISO_LINK:
1010 h->iso_num++;
1011 break;
1012 }
1013 }
1014
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)1015 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1016 {
1017 struct hci_conn_hash *h = &hdev->conn_hash;
1018
1019 list_del_rcu(&c->list);
1020 synchronize_rcu();
1021
1022 switch (c->type) {
1023 case ACL_LINK:
1024 h->acl_num--;
1025 break;
1026 case LE_LINK:
1027 h->le_num--;
1028 if (c->role == HCI_ROLE_SLAVE)
1029 h->le_num_peripheral--;
1030 break;
1031 case SCO_LINK:
1032 case ESCO_LINK:
1033 h->sco_num--;
1034 break;
1035 case ISO_LINK:
1036 h->iso_num--;
1037 break;
1038 }
1039 }
1040
hci_conn_num(struct hci_dev * hdev,__u8 type)1041 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1042 {
1043 struct hci_conn_hash *h = &hdev->conn_hash;
1044 switch (type) {
1045 case ACL_LINK:
1046 return h->acl_num;
1047 case LE_LINK:
1048 return h->le_num;
1049 case SCO_LINK:
1050 case ESCO_LINK:
1051 return h->sco_num;
1052 case ISO_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 != ISO_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 != ISO_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 != ISO_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_role(struct hci_dev * hdev,__u8 type,__u8 role,bdaddr_t * ba)1215 static inline struct hci_conn *hci_conn_hash_lookup_role(struct hci_dev *hdev,
1216 __u8 type, __u8 role,
1217 bdaddr_t *ba)
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 == type && c->role == role && !bacmp(&c->dst, ba)) {
1226 rcu_read_unlock();
1227 return c;
1228 }
1229 }
1230
1231 rcu_read_unlock();
1232
1233 return NULL;
1234 }
1235
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1236 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1237 bdaddr_t *ba,
1238 __u8 ba_type)
1239 {
1240 struct hci_conn_hash *h = &hdev->conn_hash;
1241 struct hci_conn *c;
1242
1243 rcu_read_lock();
1244
1245 list_for_each_entry_rcu(c, &h->list, list) {
1246 if (c->type != LE_LINK)
1247 continue;
1248
1249 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1250 rcu_read_unlock();
1251 return c;
1252 }
1253 }
1254
1255 rcu_read_unlock();
1256
1257 return NULL;
1258 }
1259
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1260 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1261 bdaddr_t *ba,
1262 __u8 ba_type,
1263 __u8 cig,
1264 __u8 id)
1265 {
1266 struct hci_conn_hash *h = &hdev->conn_hash;
1267 struct hci_conn *c;
1268
1269 rcu_read_lock();
1270
1271 list_for_each_entry_rcu(c, &h->list, list) {
1272 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1273 continue;
1274
1275 /* Match CIG ID if set */
1276 if (cig != c->iso_qos.ucast.cig)
1277 continue;
1278
1279 /* Match CIS ID if set */
1280 if (id != c->iso_qos.ucast.cis)
1281 continue;
1282
1283 /* Match destination address if set */
1284 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1285 rcu_read_unlock();
1286 return c;
1287 }
1288 }
1289
1290 rcu_read_unlock();
1291
1292 return NULL;
1293 }
1294
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1295 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1296 __u8 handle)
1297 {
1298 struct hci_conn_hash *h = &hdev->conn_hash;
1299 struct hci_conn *c;
1300
1301 rcu_read_lock();
1302
1303 list_for_each_entry_rcu(c, &h->list, list) {
1304 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1305 continue;
1306
1307 if (handle == c->iso_qos.ucast.cig) {
1308 rcu_read_unlock();
1309 return c;
1310 }
1311 }
1312
1313 rcu_read_unlock();
1314
1315 return NULL;
1316 }
1317
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1318 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1319 __u8 handle)
1320 {
1321 struct hci_conn_hash *h = &hdev->conn_hash;
1322 struct hci_conn *c;
1323
1324 rcu_read_lock();
1325
1326 list_for_each_entry_rcu(c, &h->list, list) {
1327 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1328 continue;
1329
1330 if (handle == c->iso_qos.bcast.big) {
1331 rcu_read_unlock();
1332 return c;
1333 }
1334 }
1335
1336 rcu_read_unlock();
1337
1338 return NULL;
1339 }
1340
1341 static inline struct hci_conn *
hci_conn_hash_lookup_big_sync_pend(struct hci_dev * hdev,__u8 handle,__u8 num_bis)1342 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev,
1343 __u8 handle, __u8 num_bis)
1344 {
1345 struct hci_conn_hash *h = &hdev->conn_hash;
1346 struct hci_conn *c;
1347
1348 rcu_read_lock();
1349
1350 list_for_each_entry_rcu(c, &h->list, list) {
1351 if (c->type != ISO_LINK)
1352 continue;
1353
1354 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) {
1355 rcu_read_unlock();
1356 return c;
1357 }
1358 }
1359
1360 rcu_read_unlock();
1361
1362 return NULL;
1363 }
1364
1365 static inline struct hci_conn *
hci_conn_hash_lookup_big_state(struct hci_dev * hdev,__u8 handle,__u16 state)1366 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
1367 {
1368 struct hci_conn_hash *h = &hdev->conn_hash;
1369 struct hci_conn *c;
1370
1371 rcu_read_lock();
1372
1373 list_for_each_entry_rcu(c, &h->list, list) {
1374 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK ||
1375 c->state != state)
1376 continue;
1377
1378 if (handle == c->iso_qos.bcast.big) {
1379 rcu_read_unlock();
1380 return c;
1381 }
1382 }
1383
1384 rcu_read_unlock();
1385
1386 return NULL;
1387 }
1388
1389 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1390 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1391 {
1392 struct hci_conn_hash *h = &hdev->conn_hash;
1393 struct hci_conn *c;
1394
1395 rcu_read_lock();
1396
1397 list_for_each_entry_rcu(c, &h->list, list) {
1398 if (c->type != ISO_LINK ||
1399 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1400 continue;
1401
1402 if (c->iso_qos.bcast.big == big) {
1403 rcu_read_unlock();
1404 return c;
1405 }
1406 }
1407 rcu_read_unlock();
1408
1409 return NULL;
1410 }
1411
1412 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1413 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1414 {
1415 struct hci_conn_hash *h = &hdev->conn_hash;
1416 struct hci_conn *c;
1417
1418 rcu_read_lock();
1419
1420 list_for_each_entry_rcu(c, &h->list, list) {
1421 if (c->type != ISO_LINK)
1422 continue;
1423
1424 /* Ignore the listen hcon, we are looking
1425 * for the child hcon that was created as
1426 * a result of the PA sync established event.
1427 */
1428 if (c->state == BT_LISTEN)
1429 continue;
1430
1431 if (c->sync_handle == sync_handle) {
1432 rcu_read_unlock();
1433 return c;
1434 }
1435 }
1436 rcu_read_unlock();
1437
1438 return NULL;
1439 }
1440
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1441 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1442 __u8 type, __u16 state)
1443 {
1444 struct hci_conn_hash *h = &hdev->conn_hash;
1445 struct hci_conn *c;
1446
1447 rcu_read_lock();
1448
1449 list_for_each_entry_rcu(c, &h->list, list) {
1450 if (c->type == type && c->state == state) {
1451 rcu_read_unlock();
1452 return c;
1453 }
1454 }
1455
1456 rcu_read_unlock();
1457
1458 return NULL;
1459 }
1460
1461 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)1462 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1463 hci_conn_func_t func, __u8 type,
1464 __u16 state, void *data)
1465 {
1466 struct hci_conn_hash *h = &hdev->conn_hash;
1467 struct hci_conn *c;
1468
1469 if (!func)
1470 return;
1471
1472 rcu_read_lock();
1473
1474 list_for_each_entry_rcu(c, &h->list, list) {
1475 if (c->type == type && c->state == state)
1476 func(c, data);
1477 }
1478
1479 rcu_read_unlock();
1480 }
1481
hci_conn_hash_list_flag(struct hci_dev * hdev,hci_conn_func_t func,__u8 type,__u8 flag,void * data)1482 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev,
1483 hci_conn_func_t func, __u8 type,
1484 __u8 flag, void *data)
1485 {
1486 struct hci_conn_hash *h = &hdev->conn_hash;
1487 struct hci_conn *c;
1488
1489 if (!func)
1490 return;
1491
1492 rcu_read_lock();
1493
1494 list_for_each_entry_rcu(c, &h->list, list) {
1495 if (c->type == type && test_bit(flag, &c->flags))
1496 func(c, data);
1497 }
1498
1499 rcu_read_unlock();
1500 }
1501
hci_lookup_le_connect(struct hci_dev * hdev)1502 static inline struct hci_conn *hci_lookup_le_connect(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 c;
1514 }
1515 }
1516
1517 rcu_read_unlock();
1518
1519 return NULL;
1520 }
1521
1522 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1523 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1524 {
1525 struct hci_conn_hash *h = &hdev->conn_hash;
1526 struct hci_conn *c;
1527
1528 rcu_read_lock();
1529
1530 list_for_each_entry_rcu(c, &h->list, list) {
1531 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1532 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1533 rcu_read_unlock();
1534 return true;
1535 }
1536 }
1537
1538 rcu_read_unlock();
1539
1540 return false;
1541 }
1542
1543 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1544 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1545 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1546 bool hci_iso_setup_path(struct hci_conn *conn);
1547 int hci_le_create_cis_pending(struct hci_dev *hdev);
1548 int hci_conn_check_create_cis(struct hci_conn *conn);
1549
1550 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1551 u8 role, u16 handle);
1552 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1553 bdaddr_t *dst, u8 role);
1554 void hci_conn_del(struct hci_conn *conn);
1555 void hci_conn_hash_flush(struct hci_dev *hdev);
1556
1557 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1558 void hci_chan_del(struct hci_chan *chan);
1559 void hci_chan_list_flush(struct hci_conn *conn);
1560 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1561
1562 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1563 u8 dst_type, u8 sec_level,
1564 u16 conn_timeout,
1565 enum conn_reasons conn_reason);
1566 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1567 u8 dst_type, bool dst_resolved, u8 sec_level,
1568 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy);
1569 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1570 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1571 u8 sec_level, u8 auth_type,
1572 enum conn_reasons conn_reason, u16 timeout);
1573 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1574 __u16 setting, struct bt_codec *codec,
1575 u16 timeout);
1576 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1577 __u8 dst_type, struct bt_iso_qos *qos);
1578 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1579 struct bt_iso_qos *qos,
1580 __u8 base_len, __u8 *base);
1581 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1582 __u8 dst_type, struct bt_iso_qos *qos);
1583 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1584 __u8 dst_type, struct bt_iso_qos *qos,
1585 __u8 data_len, __u8 *data);
1586 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
1587 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
1588 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1589 struct bt_iso_qos *qos, __u16 sync_handle,
1590 __u8 num_bis, __u8 bis[]);
1591 int hci_conn_check_link_mode(struct hci_conn *conn);
1592 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1593 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1594 bool initiator);
1595 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1596
1597 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1598
1599 void hci_conn_failed(struct hci_conn *conn, u8 status);
1600 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1601
1602 /*
1603 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1604 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1605 * working or anything else. They just guarantee that the object is available
1606 * and can be dereferenced. So you can use its locks, local variables and any
1607 * other constant data.
1608 * Before accessing runtime data, you _must_ lock the object and then check that
1609 * it is still running. As soon as you release the locks, the connection might
1610 * get dropped, though.
1611 *
1612 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1613 * how long the underlying connection is held. So every channel that runs on the
1614 * hci_conn object calls this to prevent the connection from disappearing. As
1615 * long as you hold a device, you must also guarantee that you have a valid
1616 * reference to the device via hci_conn_get() (or the initial reference from
1617 * hci_conn_add()).
1618 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1619 * break because nobody cares for that. But this means, we cannot use
1620 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1621 */
1622
hci_conn_get(struct hci_conn * conn)1623 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1624 {
1625 get_device(&conn->dev);
1626 return conn;
1627 }
1628
hci_conn_put(struct hci_conn * conn)1629 static inline void hci_conn_put(struct hci_conn *conn)
1630 {
1631 put_device(&conn->dev);
1632 }
1633
hci_conn_hold(struct hci_conn * conn)1634 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1635 {
1636 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1637
1638 atomic_inc(&conn->refcnt);
1639 cancel_delayed_work(&conn->disc_work);
1640
1641 return conn;
1642 }
1643
hci_conn_drop(struct hci_conn * conn)1644 static inline void hci_conn_drop(struct hci_conn *conn)
1645 {
1646 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1647
1648 if (atomic_dec_and_test(&conn->refcnt)) {
1649 unsigned long timeo;
1650
1651 switch (conn->type) {
1652 case ACL_LINK:
1653 case LE_LINK:
1654 cancel_delayed_work(&conn->idle_work);
1655 if (conn->state == BT_CONNECTED) {
1656 timeo = conn->disc_timeout;
1657 if (!conn->out)
1658 timeo *= 2;
1659 } else {
1660 timeo = 0;
1661 }
1662 break;
1663
1664 default:
1665 timeo = 0;
1666 break;
1667 }
1668
1669 cancel_delayed_work(&conn->disc_work);
1670 queue_delayed_work(conn->hdev->workqueue,
1671 &conn->disc_work, timeo);
1672 }
1673 }
1674
1675 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1676 static inline void hci_dev_put(struct hci_dev *d)
1677 {
1678 BT_DBG("%s orig refcnt %d", d->name,
1679 kref_read(&d->dev.kobj.kref));
1680
1681 put_device(&d->dev);
1682 }
1683
hci_dev_hold(struct hci_dev * d)1684 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1685 {
1686 BT_DBG("%s orig refcnt %d", d->name,
1687 kref_read(&d->dev.kobj.kref));
1688
1689 get_device(&d->dev);
1690 return d;
1691 }
1692
1693 #define hci_dev_lock(d) mutex_lock(&d->lock)
1694 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1695
1696 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1697 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1698
hci_get_drvdata(struct hci_dev * hdev)1699 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1700 {
1701 return dev_get_drvdata(&hdev->dev);
1702 }
1703
hci_set_drvdata(struct hci_dev * hdev,void * data)1704 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1705 {
1706 dev_set_drvdata(&hdev->dev, data);
1707 }
1708
hci_get_priv(struct hci_dev * hdev)1709 static inline void *hci_get_priv(struct hci_dev *hdev)
1710 {
1711 return (char *)hdev + sizeof(*hdev);
1712 }
1713
1714 struct hci_dev *hci_dev_get(int index);
1715 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1716
1717 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1718
hci_alloc_dev(void)1719 static inline struct hci_dev *hci_alloc_dev(void)
1720 {
1721 return hci_alloc_dev_priv(0);
1722 }
1723
1724 void hci_free_dev(struct hci_dev *hdev);
1725 int hci_register_dev(struct hci_dev *hdev);
1726 void hci_unregister_dev(struct hci_dev *hdev);
1727 void hci_release_dev(struct hci_dev *hdev);
1728 int hci_register_suspend_notifier(struct hci_dev *hdev);
1729 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1730 int hci_suspend_dev(struct hci_dev *hdev);
1731 int hci_resume_dev(struct hci_dev *hdev);
1732 int hci_reset_dev(struct hci_dev *hdev);
1733 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1734 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1735 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1736 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1737
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1738 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1739 {
1740 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1741 hdev->msft_opcode = opcode;
1742 #endif
1743 }
1744
hci_set_aosp_capable(struct hci_dev * hdev)1745 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1746 {
1747 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1748 hdev->aosp_capable = true;
1749 #endif
1750 }
1751
hci_devcd_setup(struct hci_dev * hdev)1752 static inline void hci_devcd_setup(struct hci_dev *hdev)
1753 {
1754 #ifdef CONFIG_DEV_COREDUMP
1755 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1756 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1757 skb_queue_head_init(&hdev->dump.dump_q);
1758 #endif
1759 }
1760
1761 int hci_dev_open(__u16 dev);
1762 int hci_dev_close(__u16 dev);
1763 int hci_dev_do_close(struct hci_dev *hdev);
1764 int hci_dev_reset(__u16 dev);
1765 int hci_dev_reset_stat(__u16 dev);
1766 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1767 int hci_get_dev_list(void __user *arg);
1768 int hci_get_dev_info(void __user *arg);
1769 int hci_get_conn_list(void __user *arg);
1770 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1771 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1772 int hci_inquiry(void __user *arg);
1773
1774 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1775 bdaddr_t *bdaddr, u8 type);
1776 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1777 struct list_head *list, bdaddr_t *bdaddr,
1778 u8 type);
1779 struct bdaddr_list_with_flags *
1780 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1781 u8 type);
1782 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1783 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1784 u8 type, u8 *peer_irk, u8 *local_irk);
1785 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1786 u8 type, u32 flags);
1787 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1788 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1789 u8 type);
1790 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1791 u8 type);
1792 void hci_bdaddr_list_clear(struct list_head *list);
1793
1794 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1795 bdaddr_t *addr, u8 addr_type);
1796 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1797 bdaddr_t *addr, u8 addr_type);
1798 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1799 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1800 void hci_conn_params_free(struct hci_conn_params *param);
1801
1802 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1803 void hci_pend_le_list_add(struct hci_conn_params *param,
1804 struct list_head *list);
1805 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1806 bdaddr_t *addr,
1807 u8 addr_type);
1808
1809 void hci_uuids_clear(struct hci_dev *hdev);
1810
1811 void hci_link_keys_clear(struct hci_dev *hdev);
1812 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1813 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1814 bdaddr_t *bdaddr, u8 *val, u8 type,
1815 u8 pin_len, bool *persistent);
1816 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1817 u8 addr_type, u8 type, u8 authenticated,
1818 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1819 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1820 u8 addr_type, u8 role);
1821 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1822 void hci_smp_ltks_clear(struct hci_dev *hdev);
1823 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1824
1825 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1826 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1827 u8 addr_type);
1828 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1829 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1830 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1831 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1832 void hci_blocked_keys_clear(struct hci_dev *hdev);
1833 void hci_smp_irks_clear(struct hci_dev *hdev);
1834
1835 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1836
1837 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1838 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1839 bdaddr_t *bdaddr, u8 bdaddr_type);
1840 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1841 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1842 u8 *hash256, u8 *rand256);
1843 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1844 u8 bdaddr_type);
1845
1846 void hci_adv_instances_clear(struct hci_dev *hdev);
1847 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1848 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1849 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1850 u32 flags, u16 adv_data_len, u8 *adv_data,
1851 u16 scan_rsp_len, u8 *scan_rsp_data,
1852 u16 timeout, u16 duration, s8 tx_power,
1853 u32 min_interval, u32 max_interval,
1854 u8 mesh_handle);
1855 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1856 u32 flags, u8 data_len, u8 *data,
1857 u32 min_interval, u32 max_interval);
1858 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1859 u16 adv_data_len, u8 *adv_data,
1860 u16 scan_rsp_len, u8 *scan_rsp_data);
1861 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1862 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1863 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1864 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1865
1866 void hci_adv_monitors_clear(struct hci_dev *hdev);
1867 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1868 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1869 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1870 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1871 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1872 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1873
1874 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1875
1876 void hci_init_sysfs(struct hci_dev *hdev);
1877 void hci_conn_init_sysfs(struct hci_conn *conn);
1878 void hci_conn_add_sysfs(struct hci_conn *conn);
1879 void hci_conn_del_sysfs(struct hci_conn *conn);
1880
1881 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1882 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1883
1884 /* ----- LMP capabilities ----- */
1885 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1886 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1887 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1888 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1889 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1890 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1891 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1892 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1893 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1894 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1895 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1896 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1897 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1898 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1899 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1900 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1901 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1902 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1903 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1904 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1905 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1906 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1907 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1908 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1909
1910 /* ----- Extended LMP capabilities ----- */
1911 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1912 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1913 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1914 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1915 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1916 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1917
1918 /* ----- Host capabilities ----- */
1919 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1920 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1921 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1922 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1923
1924 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1925 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1926 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1927 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1928 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1929 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1930 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1931 !adv->rpa_expired)
1932
1933 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1934 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1935
1936 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1937
1938 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1939 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1940
1941 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1942 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1943 &(dev)->quirks))
1944
1945 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1946 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1947
1948 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1949
1950 /* Use LL Privacy based address resolution if supported */
1951 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1952 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1953
1954 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1955 (hdev->commands[39] & 0x04))
1956
1957 #define read_key_size_capable(dev) \
1958 ((dev)->commands[20] & 0x10 && \
1959 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1960
1961 #define read_voice_setting_capable(dev) \
1962 ((dev)->commands[9] & 0x04 && \
1963 !test_bit(HCI_QUIRK_BROKEN_READ_VOICE_SETTING, &(dev)->quirks))
1964
1965 /* Use enhanced synchronous connection if command is supported and its quirk
1966 * has not been set.
1967 */
1968 #define enhanced_sync_conn_capable(dev) \
1969 (((dev)->commands[29] & 0x08) && \
1970 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1971
1972 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1973 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1974 ((dev)->commands[37] & 0x40) && \
1975 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1976
1977 /* Use ext create connection if command is supported */
1978 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
1979 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
1980 /* Extended advertising support */
1981 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1982
1983 /* Maximum advertising length */
1984 #define max_adv_len(dev) \
1985 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1986
1987 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1988 *
1989 * C24: Mandatory if the LE Controller supports Connection State and either
1990 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1991 */
1992 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
1993 ext_adv_capable(dev)) && \
1994 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
1995 &(dev)->quirks))
1996
1997 /* Periodic advertising support */
1998 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1999
2000 /* CIS Master/Slave and BIS support */
2001 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
2002 #define cis_capable(dev) \
2003 (cis_central_capable(dev) || cis_peripheral_capable(dev))
2004 #define cis_central_capable(dev) \
2005 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
2006 #define cis_peripheral_capable(dev) \
2007 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
2008 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
2009 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
2010
2011 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
2012 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
2013
2014 /* ----- HCI protocols ----- */
2015 #define HCI_PROTO_DEFER 0x01
2016
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)2017 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
2018 __u8 type, __u8 *flags)
2019 {
2020 switch (type) {
2021 case ACL_LINK:
2022 return l2cap_connect_ind(hdev, bdaddr);
2023
2024 case SCO_LINK:
2025 case ESCO_LINK:
2026 return sco_connect_ind(hdev, bdaddr, flags);
2027
2028 case ISO_LINK:
2029 return iso_connect_ind(hdev, bdaddr, flags);
2030
2031 default:
2032 BT_ERR("unknown link type %d", type);
2033 return -EINVAL;
2034 }
2035 }
2036
hci_proto_disconn_ind(struct hci_conn * conn)2037 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
2038 {
2039 if (conn->type != ACL_LINK && conn->type != LE_LINK)
2040 return HCI_ERROR_REMOTE_USER_TERM;
2041
2042 return l2cap_disconn_ind(conn);
2043 }
2044
2045 /* ----- HCI callbacks ----- */
2046 struct hci_cb {
2047 struct list_head list;
2048
2049 char *name;
2050
2051 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
2052 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
2053 void (*security_cfm) (struct hci_conn *conn, __u8 status,
2054 __u8 encrypt);
2055 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
2056 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
2057
2058 ANDROID_KABI_RESERVE(1);
2059 };
2060
hci_connect_cfm(struct hci_conn * conn,__u8 status)2061 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
2062 {
2063 struct hci_cb *cb;
2064
2065 mutex_lock(&hci_cb_list_lock);
2066 list_for_each_entry(cb, &hci_cb_list, list) {
2067 if (cb->connect_cfm)
2068 cb->connect_cfm(conn, status);
2069 }
2070 mutex_unlock(&hci_cb_list_lock);
2071
2072 if (conn->connect_cfm_cb)
2073 conn->connect_cfm_cb(conn, status);
2074 }
2075
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)2076 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
2077 {
2078 struct hci_cb *cb;
2079
2080 mutex_lock(&hci_cb_list_lock);
2081 list_for_each_entry(cb, &hci_cb_list, list) {
2082 if (cb->disconn_cfm)
2083 cb->disconn_cfm(conn, reason);
2084 }
2085 mutex_unlock(&hci_cb_list_lock);
2086
2087 if (conn->disconn_cfm_cb)
2088 conn->disconn_cfm_cb(conn, reason);
2089 }
2090
hci_auth_cfm(struct hci_conn * conn,__u8 status)2091 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2092 {
2093 struct hci_cb *cb;
2094 __u8 encrypt;
2095
2096 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2097 return;
2098
2099 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2100
2101 mutex_lock(&hci_cb_list_lock);
2102 list_for_each_entry(cb, &hci_cb_list, list) {
2103 if (cb->security_cfm)
2104 cb->security_cfm(conn, status, encrypt);
2105 }
2106 mutex_unlock(&hci_cb_list_lock);
2107
2108 if (conn->security_cfm_cb)
2109 conn->security_cfm_cb(conn, status);
2110 }
2111
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2112 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2113 {
2114 struct hci_cb *cb;
2115 __u8 encrypt;
2116
2117 if (conn->state == BT_CONFIG) {
2118 if (!status)
2119 conn->state = BT_CONNECTED;
2120
2121 hci_connect_cfm(conn, status);
2122 hci_conn_drop(conn);
2123 return;
2124 }
2125
2126 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2127 encrypt = 0x00;
2128 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2129 encrypt = 0x02;
2130 else
2131 encrypt = 0x01;
2132
2133 if (!status) {
2134 if (conn->sec_level == BT_SECURITY_SDP)
2135 conn->sec_level = BT_SECURITY_LOW;
2136
2137 if (conn->pending_sec_level > conn->sec_level)
2138 conn->sec_level = conn->pending_sec_level;
2139 }
2140
2141 mutex_lock(&hci_cb_list_lock);
2142 list_for_each_entry(cb, &hci_cb_list, list) {
2143 if (cb->security_cfm)
2144 cb->security_cfm(conn, status, encrypt);
2145 }
2146 mutex_unlock(&hci_cb_list_lock);
2147
2148 if (conn->security_cfm_cb)
2149 conn->security_cfm_cb(conn, status);
2150 }
2151
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2152 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
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->key_change_cfm)
2159 cb->key_change_cfm(conn, status);
2160 }
2161 mutex_unlock(&hci_cb_list_lock);
2162 }
2163
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2164 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2165 __u8 role)
2166 {
2167 struct hci_cb *cb;
2168
2169 mutex_lock(&hci_cb_list_lock);
2170 list_for_each_entry(cb, &hci_cb_list, list) {
2171 if (cb->role_switch_cfm)
2172 cb->role_switch_cfm(conn, status, role);
2173 }
2174 mutex_unlock(&hci_cb_list_lock);
2175 }
2176
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2177 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2178 {
2179 if (addr_type != ADDR_LE_DEV_RANDOM)
2180 return false;
2181
2182 if ((bdaddr->b[5] & 0xc0) == 0x40)
2183 return true;
2184
2185 return false;
2186 }
2187
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2188 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2189 {
2190 if (addr_type == ADDR_LE_DEV_PUBLIC)
2191 return true;
2192
2193 /* Check for Random Static address type */
2194 if ((addr->b[5] & 0xc0) == 0xc0)
2195 return true;
2196
2197 return false;
2198 }
2199
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2200 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2201 bdaddr_t *bdaddr, u8 addr_type)
2202 {
2203 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2204 return NULL;
2205
2206 return hci_find_irk_by_rpa(hdev, bdaddr);
2207 }
2208
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2209 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2210 u16 to_multiplier)
2211 {
2212 u16 max_latency;
2213
2214 if (min > max) {
2215 BT_WARN("min %d > max %d", min, max);
2216 return -EINVAL;
2217 }
2218
2219 if (min < 6) {
2220 BT_WARN("min %d < 6", min);
2221 return -EINVAL;
2222 }
2223
2224 if (max > 3200) {
2225 BT_WARN("max %d > 3200", max);
2226 return -EINVAL;
2227 }
2228
2229 if (to_multiplier < 10) {
2230 BT_WARN("to_multiplier %d < 10", to_multiplier);
2231 return -EINVAL;
2232 }
2233
2234 if (to_multiplier > 3200) {
2235 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2236 return -EINVAL;
2237 }
2238
2239 if (max >= to_multiplier * 8) {
2240 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2241 return -EINVAL;
2242 }
2243
2244 max_latency = (to_multiplier * 4 / max) - 1;
2245 if (latency > 499) {
2246 BT_WARN("latency %d > 499", latency);
2247 return -EINVAL;
2248 }
2249
2250 if (latency > max_latency) {
2251 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2252 return -EINVAL;
2253 }
2254
2255 return 0;
2256 }
2257
2258 int hci_register_cb(struct hci_cb *hcb);
2259 int hci_unregister_cb(struct hci_cb *hcb);
2260
2261 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2262 const void *param);
2263
2264 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2265 const void *param);
2266 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2267 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2268 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2269
2270 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2271 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2272
2273 u32 hci_conn_get_phy(struct hci_conn *conn);
2274
2275 /* ----- HCI Sockets ----- */
2276 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2277 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2278 int flag, struct sock *skip_sk);
2279 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2280 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2281 void *data, u16 data_len, ktime_t tstamp,
2282 int flag, struct sock *skip_sk);
2283
2284 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2285
2286 #define HCI_MGMT_VAR_LEN BIT(0)
2287 #define HCI_MGMT_NO_HDEV BIT(1)
2288 #define HCI_MGMT_UNTRUSTED BIT(2)
2289 #define HCI_MGMT_UNCONFIGURED BIT(3)
2290 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2291
2292 struct hci_mgmt_handler {
2293 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2294 u16 data_len);
2295 size_t data_len;
2296 unsigned long flags;
2297 };
2298
2299 struct hci_mgmt_chan {
2300 struct list_head list;
2301 unsigned short channel;
2302 size_t handler_count;
2303 const struct hci_mgmt_handler *handlers;
2304 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2305
2306 ANDROID_KABI_RESERVE(1);
2307 };
2308
2309 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2310 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2311
2312 /* Management interface */
2313 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2314 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2315 BIT(BDADDR_LE_RANDOM))
2316 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2317 BIT(BDADDR_LE_PUBLIC) | \
2318 BIT(BDADDR_LE_RANDOM))
2319
2320 /* These LE scan and inquiry parameters were chosen according to LE General
2321 * Discovery Procedure specification.
2322 */
2323 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */
2324 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */
2325 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */
2326 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */
2327 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */
2328 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */
2329 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */
2330 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */
2331 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */
2332 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */
2333 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */
2334 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */
2335 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */
2336 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */
2337 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */
2338 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */
2339 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2340 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2341 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2342 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2343 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2344 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2345 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2346 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2347 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2348 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2349 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2350 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2351
2352 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2353
2354 void mgmt_fill_version_info(void *ver);
2355 int mgmt_new_settings(struct hci_dev *hdev);
2356 void mgmt_index_added(struct hci_dev *hdev);
2357 void mgmt_index_removed(struct hci_dev *hdev);
2358 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2359 void mgmt_power_on(struct hci_dev *hdev, int err);
2360 void __mgmt_power_off(struct hci_dev *hdev);
2361 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2362 bool persistent);
2363 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2364 u8 *name, u8 name_len);
2365 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2366 u8 link_type, u8 addr_type, u8 reason,
2367 bool mgmt_connected);
2368 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2369 u8 link_type, u8 addr_type, u8 status);
2370 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
2371 u8 status);
2372 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2373 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2374 u8 status);
2375 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2376 u8 status);
2377 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2378 u8 link_type, u8 addr_type, u32 value,
2379 u8 confirm_hint);
2380 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2381 u8 link_type, u8 addr_type, u8 status);
2382 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2383 u8 link_type, u8 addr_type, u8 status);
2384 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2385 u8 link_type, u8 addr_type);
2386 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2387 u8 link_type, u8 addr_type, u8 status);
2388 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2389 u8 link_type, u8 addr_type, u8 status);
2390 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2391 u8 link_type, u8 addr_type, u32 passkey,
2392 u8 entered);
2393 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2394 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2395 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2396 u8 status);
2397 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2398 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2399 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2400 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2401 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2402 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2403 u64 instant);
2404 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2405 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2406 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2407 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2408 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2409 u8 addr_type);
2410 bool mgmt_powering_down(struct hci_dev *hdev);
2411 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2412 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2413 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2414 bool persistent);
2415 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2416 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2417 u16 max_interval, u16 latency, u16 timeout);
2418 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2419 bool mgmt_get_connectable(struct hci_dev *hdev);
2420 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2421 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2422 u8 instance);
2423 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2424 u8 instance);
2425 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2426 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2427 bdaddr_t *bdaddr, u8 addr_type);
2428
2429 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2430 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2431 u16 to_multiplier);
2432 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2433 __u8 ltk[16], __u8 key_size);
2434
2435 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2436 u8 *bdaddr_type);
2437
2438 #define SCO_AIRMODE_MASK 0x0003
2439 #define SCO_AIRMODE_CVSD 0x0000
2440 #define SCO_AIRMODE_TRANSP 0x0003
2441
2442 #define LOCAL_CODEC_ACL_MASK BIT(0)
2443 #define LOCAL_CODEC_SCO_MASK BIT(1)
2444
2445 #define TRANSPORT_TYPE_MAX 0x04
2446
2447 #endif /* __HCI_CORE_H */
2448