1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4 Copyright 2023 NXP
5
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24 */
25
26 #ifndef __HCI_CORE_H
27 #define __HCI_CORE_H
28
29 #include <linux/idr.h>
30 #include <linux/leds.h>
31 #include <linux/rculist.h>
32
33 #include <net/bluetooth/hci.h>
34 #include <net/bluetooth/hci_sync.h>
35 #include <net/bluetooth/hci_sock.h>
36 #include <net/bluetooth/coredump.h>
37
38 /* HCI priority */
39 #define HCI_PRIO_MAX 7
40
41 /* HCI maximum id value */
42 #define HCI_MAX_ID 10000
43
44 /* HCI Core structures */
45 struct inquiry_data {
46 bdaddr_t bdaddr;
47 __u8 pscan_rep_mode;
48 __u8 pscan_period_mode;
49 __u8 pscan_mode;
50 __u8 dev_class[3];
51 __le16 clock_offset;
52 __s8 rssi;
53 __u8 ssp_mode;
54 };
55
56 struct inquiry_entry {
57 struct list_head all; /* inq_cache.all */
58 struct list_head list; /* unknown or resolve */
59 enum {
60 NAME_NOT_KNOWN,
61 NAME_NEEDED,
62 NAME_PENDING,
63 NAME_KNOWN,
64 } name_state;
65 __u32 timestamp;
66 struct inquiry_data data;
67 };
68
69 struct discovery_state {
70 int type;
71 enum {
72 DISCOVERY_STOPPED,
73 DISCOVERY_STARTING,
74 DISCOVERY_FINDING,
75 DISCOVERY_RESOLVING,
76 DISCOVERY_STOPPING,
77 } state;
78 struct list_head all; /* All devices found during inquiry */
79 struct list_head unknown; /* Name state not known */
80 struct list_head resolve; /* Name needs to be resolved */
81 __u32 timestamp;
82 bdaddr_t last_adv_addr;
83 u8 last_adv_addr_type;
84 s8 last_adv_rssi;
85 u32 last_adv_flags;
86 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH];
87 u8 last_adv_data_len;
88 bool report_invalid_rssi;
89 bool result_filtering;
90 bool limited;
91 s8 rssi;
92 u16 uuid_count;
93 u8 (*uuids)[16];
94 unsigned long scan_start;
95 unsigned long scan_duration;
96 unsigned long name_resolve_timeout;
97 };
98
99 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
100
101 enum suspend_tasks {
102 SUSPEND_PAUSE_DISCOVERY,
103 SUSPEND_UNPAUSE_DISCOVERY,
104
105 SUSPEND_PAUSE_ADVERTISING,
106 SUSPEND_UNPAUSE_ADVERTISING,
107
108 SUSPEND_SCAN_DISABLE,
109 SUSPEND_SCAN_ENABLE,
110 SUSPEND_DISCONNECTING,
111
112 SUSPEND_POWERING_DOWN,
113
114 SUSPEND_PREPARE_NOTIFIER,
115
116 SUSPEND_SET_ADV_FILTER,
117 __SUSPEND_NUM_TASKS
118 };
119
120 enum suspended_state {
121 BT_RUNNING = 0,
122 BT_SUSPEND_DISCONNECT,
123 BT_SUSPEND_CONFIGURE_WAKE,
124 };
125
126 struct hci_conn_hash {
127 struct list_head list;
128 unsigned int acl_num;
129 unsigned int sco_num;
130 unsigned int iso_num;
131 unsigned int le_num;
132 unsigned int le_num_peripheral;
133 };
134
135 struct bdaddr_list {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 bdaddr_type;
139 };
140
141 struct codec_list {
142 struct list_head list;
143 u8 id;
144 __u16 cid;
145 __u16 vid;
146 u8 transport;
147 u8 num_caps;
148 u32 len;
149 struct hci_codec_caps caps[];
150 };
151
152 struct bdaddr_list_with_irk {
153 struct list_head list;
154 bdaddr_t bdaddr;
155 u8 bdaddr_type;
156 u8 peer_irk[16];
157 u8 local_irk[16];
158 };
159
160 /* Bitmask of connection flags */
161 enum hci_conn_flags {
162 HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
163 HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
164 };
165 typedef u8 hci_conn_flags_t;
166
167 struct bdaddr_list_with_flags {
168 struct list_head list;
169 bdaddr_t bdaddr;
170 u8 bdaddr_type;
171 hci_conn_flags_t flags;
172 };
173
174 struct bt_uuid {
175 struct list_head list;
176 u8 uuid[16];
177 u8 size;
178 u8 svc_hint;
179 };
180
181 struct blocked_key {
182 struct list_head list;
183 struct rcu_head rcu;
184 u8 type;
185 u8 val[16];
186 };
187
188 struct smp_csrk {
189 bdaddr_t bdaddr;
190 u8 bdaddr_type;
191 u8 type;
192 u8 val[16];
193 };
194
195 struct smp_ltk {
196 struct list_head list;
197 struct rcu_head rcu;
198 bdaddr_t bdaddr;
199 u8 bdaddr_type;
200 u8 authenticated;
201 u8 type;
202 u8 enc_size;
203 __le16 ediv;
204 __le64 rand;
205 u8 val[16];
206 };
207
208 struct smp_irk {
209 struct list_head list;
210 struct rcu_head rcu;
211 bdaddr_t rpa;
212 bdaddr_t bdaddr;
213 u8 addr_type;
214 u8 val[16];
215 };
216
217 struct link_key {
218 struct list_head list;
219 struct rcu_head rcu;
220 bdaddr_t bdaddr;
221 u8 type;
222 u8 val[HCI_LINK_KEY_SIZE];
223 u8 pin_len;
224 };
225
226 struct oob_data {
227 struct list_head list;
228 bdaddr_t bdaddr;
229 u8 bdaddr_type;
230 u8 present;
231 u8 hash192[16];
232 u8 rand192[16];
233 u8 hash256[16];
234 u8 rand256[16];
235 };
236
237 struct adv_info {
238 struct list_head list;
239 bool enabled;
240 bool pending;
241 bool periodic;
242 __u8 mesh;
243 __u8 instance;
244 __u32 flags;
245 __u16 timeout;
246 __u16 remaining_time;
247 __u16 duration;
248 __u16 adv_data_len;
249 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
250 bool adv_data_changed;
251 __u16 scan_rsp_len;
252 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
253 bool scan_rsp_changed;
254 __u16 per_adv_data_len;
255 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
256 __s8 tx_power;
257 __u32 min_interval;
258 __u32 max_interval;
259 bdaddr_t random_addr;
260 bool rpa_expired;
261 struct delayed_work rpa_expired_cb;
262 };
263
264 #define HCI_MAX_ADV_INSTANCES 5
265 #define HCI_DEFAULT_ADV_DURATION 2
266
267 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
268
269 #define DATA_CMP(_d1, _l1, _d2, _l2) \
270 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
271
272 #define ADV_DATA_CMP(_adv, _data, _len) \
273 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
274
275 #define SCAN_RSP_CMP(_adv, _data, _len) \
276 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
277
278 struct monitored_device {
279 struct list_head list;
280
281 bdaddr_t bdaddr;
282 __u8 addr_type;
283 __u16 handle;
284 bool notified;
285 };
286
287 struct adv_pattern {
288 struct list_head list;
289 __u8 ad_type;
290 __u8 offset;
291 __u8 length;
292 __u8 value[HCI_MAX_EXT_AD_LENGTH];
293 };
294
295 struct adv_rssi_thresholds {
296 __s8 low_threshold;
297 __s8 high_threshold;
298 __u16 low_threshold_timeout;
299 __u16 high_threshold_timeout;
300 __u8 sampling_period;
301 };
302
303 struct adv_monitor {
304 struct list_head patterns;
305 struct adv_rssi_thresholds rssi;
306 __u16 handle;
307
308 enum {
309 ADV_MONITOR_STATE_NOT_REGISTERED,
310 ADV_MONITOR_STATE_REGISTERED,
311 ADV_MONITOR_STATE_OFFLOADED
312 } state;
313 };
314
315 #define HCI_MIN_ADV_MONITOR_HANDLE 1
316 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
317 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
318 #define HCI_ADV_MONITOR_EXT_NONE 1
319 #define HCI_ADV_MONITOR_EXT_MSFT 2
320
321 #define HCI_MAX_SHORT_NAME_LENGTH 10
322
323 #define HCI_CONN_HANDLE_MAX 0x0eff
324 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX)
325
326 /* Min encryption key size to match with SMP */
327 #define HCI_MIN_ENC_KEY_SIZE 7
328
329 /* Default LE RPA expiry time, 15 minutes */
330 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
331
332 /* Default min/max age of connection information (1s/3s) */
333 #define DEFAULT_CONN_INFO_MIN_AGE 1000
334 #define DEFAULT_CONN_INFO_MAX_AGE 3000
335 /* Default authenticated payload timeout 30s */
336 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
337
338 #define HCI_MAX_PAGES 3
339
340 struct hci_dev {
341 struct list_head list;
342 struct mutex lock;
343
344 struct ida unset_handle_ida;
345
346 const char *name;
347 unsigned long flags;
348 __u16 id;
349 __u8 bus;
350 bdaddr_t bdaddr;
351 bdaddr_t setup_addr;
352 bdaddr_t public_addr;
353 bdaddr_t random_addr;
354 bdaddr_t static_addr;
355 __u8 adv_addr_type;
356 __u8 dev_name[HCI_MAX_NAME_LENGTH];
357 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
358 __u8 eir[HCI_MAX_EIR_LENGTH];
359 __u16 appearance;
360 __u8 dev_class[3];
361 __u8 major_class;
362 __u8 minor_class;
363 __u8 max_page;
364 __u8 features[HCI_MAX_PAGES][8];
365 __u8 le_features[8];
366 __u8 le_accept_list_size;
367 __u8 le_resolv_list_size;
368 __u8 le_num_of_adv_sets;
369 __u8 le_states[8];
370 __u8 mesh_ad_types[16];
371 __u8 mesh_send_ref;
372 __u8 commands[64];
373 __u8 hci_ver;
374 __u16 hci_rev;
375 __u8 lmp_ver;
376 __u16 manufacturer;
377 __u16 lmp_subver;
378 __u16 voice_setting;
379 __u8 num_iac;
380 __u16 stored_max_keys;
381 __u16 stored_num_keys;
382 __u8 io_capability;
383 __s8 inq_tx_power;
384 __u8 err_data_reporting;
385 __u16 page_scan_interval;
386 __u16 page_scan_window;
387 __u8 page_scan_type;
388 __u8 le_adv_channel_map;
389 __u16 le_adv_min_interval;
390 __u16 le_adv_max_interval;
391 __u8 le_scan_type;
392 __u16 le_scan_interval;
393 __u16 le_scan_window;
394 __u16 le_scan_int_suspend;
395 __u16 le_scan_window_suspend;
396 __u16 le_scan_int_discovery;
397 __u16 le_scan_window_discovery;
398 __u16 le_scan_int_adv_monitor;
399 __u16 le_scan_window_adv_monitor;
400 __u16 le_scan_int_connect;
401 __u16 le_scan_window_connect;
402 __u16 le_conn_min_interval;
403 __u16 le_conn_max_interval;
404 __u16 le_conn_latency;
405 __u16 le_supv_timeout;
406 __u16 le_def_tx_len;
407 __u16 le_def_tx_time;
408 __u16 le_max_tx_len;
409 __u16 le_max_tx_time;
410 __u16 le_max_rx_len;
411 __u16 le_max_rx_time;
412 __u8 le_max_key_size;
413 __u8 le_min_key_size;
414 __u16 discov_interleaved_timeout;
415 __u16 conn_info_min_age;
416 __u16 conn_info_max_age;
417 __u16 auth_payload_timeout;
418 __u8 min_enc_key_size;
419 __u8 max_enc_key_size;
420 __u8 pairing_opts;
421 __u8 ssp_debug_mode;
422 __u8 hw_error_code;
423 __u32 clock;
424 __u16 advmon_allowlist_duration;
425 __u16 advmon_no_filter_duration;
426 __u8 enable_advmon_interleave_scan;
427
428 __u16 devid_source;
429 __u16 devid_vendor;
430 __u16 devid_product;
431 __u16 devid_version;
432
433 __u8 def_page_scan_type;
434 __u16 def_page_scan_int;
435 __u16 def_page_scan_window;
436 __u8 def_inq_scan_type;
437 __u16 def_inq_scan_int;
438 __u16 def_inq_scan_window;
439 __u16 def_br_lsto;
440 __u16 def_page_timeout;
441 __u16 def_multi_adv_rotation_duration;
442 __u16 def_le_autoconnect_timeout;
443 __s8 min_le_tx_power;
444 __s8 max_le_tx_power;
445
446 __u16 pkt_type;
447 __u16 esco_type;
448 __u16 link_policy;
449 __u16 link_mode;
450
451 __u32 idle_timeout;
452 __u16 sniff_min_interval;
453 __u16 sniff_max_interval;
454
455 unsigned int auto_accept_delay;
456
457 unsigned long quirks;
458
459 atomic_t cmd_cnt;
460 unsigned int acl_cnt;
461 unsigned int sco_cnt;
462 unsigned int le_cnt;
463 unsigned int iso_cnt;
464
465 unsigned int acl_mtu;
466 unsigned int sco_mtu;
467 unsigned int le_mtu;
468 unsigned int iso_mtu;
469 unsigned int acl_pkts;
470 unsigned int sco_pkts;
471 unsigned int le_pkts;
472 unsigned int iso_pkts;
473
474 unsigned long acl_last_tx;
475 unsigned long sco_last_tx;
476 unsigned long le_last_tx;
477
478 __u8 le_tx_def_phys;
479 __u8 le_rx_def_phys;
480
481 struct workqueue_struct *workqueue;
482 struct workqueue_struct *req_workqueue;
483
484 struct work_struct power_on;
485 struct delayed_work power_off;
486 struct work_struct error_reset;
487 struct work_struct cmd_sync_work;
488 struct list_head cmd_sync_work_list;
489 struct mutex cmd_sync_work_lock;
490 struct mutex unregister_lock;
491 struct work_struct cmd_sync_cancel_work;
492 struct work_struct reenable_adv_work;
493
494 __u16 discov_timeout;
495 struct delayed_work discov_off;
496
497 struct delayed_work service_cache;
498
499 struct delayed_work cmd_timer;
500 struct delayed_work ncmd_timer;
501
502 struct work_struct rx_work;
503 struct work_struct cmd_work;
504 struct work_struct tx_work;
505
506 struct delayed_work le_scan_disable;
507 struct delayed_work le_scan_restart;
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 int discovery_old_state;
529 bool discovery_paused;
530 int advertising_old_state;
531 bool advertising_paused;
532
533 struct notifier_block suspend_notifier;
534 enum suspended_state suspend_state_next;
535 enum suspended_state suspend_state;
536 bool scanning_paused;
537 bool suspended;
538 u8 wake_reason;
539 bdaddr_t wake_addr;
540 u8 wake_addr_type;
541
542 struct hci_conn_hash conn_hash;
543
544 struct list_head mesh_pending;
545 struct list_head mgmt_pending;
546 struct list_head reject_list;
547 struct list_head accept_list;
548 struct list_head uuids;
549 struct list_head link_keys;
550 struct list_head long_term_keys;
551 struct list_head identity_resolving_keys;
552 struct list_head remote_oob_data;
553 struct list_head le_accept_list;
554 struct list_head le_resolv_list;
555 struct list_head le_conn_params;
556 struct list_head pend_le_conns;
557 struct list_head pend_le_reports;
558 struct list_head blocked_keys;
559 struct list_head local_codecs;
560
561 struct hci_dev_stats stat;
562
563 atomic_t promisc;
564
565 const char *hw_info;
566 const char *fw_info;
567 struct dentry *debugfs;
568
569 struct hci_devcoredump dump;
570
571 struct device dev;
572
573 struct rfkill *rfkill;
574
575 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
576 hci_conn_flags_t conn_flags;
577
578 __s8 adv_tx_power;
579 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
580 __u8 adv_data_len;
581 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
582 __u8 scan_rsp_data_len;
583 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
584 __u8 per_adv_data_len;
585
586 struct list_head adv_instances;
587 unsigned int adv_instance_cnt;
588 __u8 cur_adv_instance;
589 __u16 adv_instance_timeout;
590 struct delayed_work adv_instance_expire;
591
592 struct idr adv_monitors_idr;
593 unsigned int adv_monitors_cnt;
594
595 __u8 irk[16];
596 __u32 rpa_timeout;
597 struct delayed_work rpa_expired;
598 bdaddr_t rpa;
599
600 struct delayed_work mesh_send_done;
601
602 enum {
603 INTERLEAVE_SCAN_NONE,
604 INTERLEAVE_SCAN_NO_FILTER,
605 INTERLEAVE_SCAN_ALLOWLIST
606 } interleave_scan_state;
607
608 struct delayed_work interleave_scan;
609
610 struct list_head monitored_devices;
611 bool advmon_pend_notify;
612
613 #if IS_ENABLED(CONFIG_BT_LEDS)
614 struct led_trigger *power_led;
615 #endif
616
617 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
618 __u16 msft_opcode;
619 void *msft_data;
620 bool msft_curve_validity;
621 #endif
622
623 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
624 bool aosp_capable;
625 bool aosp_quality_report;
626 #endif
627
628 int (*open)(struct hci_dev *hdev);
629 int (*close)(struct hci_dev *hdev);
630 int (*flush)(struct hci_dev *hdev);
631 int (*setup)(struct hci_dev *hdev);
632 int (*shutdown)(struct hci_dev *hdev);
633 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
634 void (*notify)(struct hci_dev *hdev, unsigned int evt);
635 void (*hw_error)(struct hci_dev *hdev, u8 code);
636 int (*post_init)(struct hci_dev *hdev);
637 int (*set_diag)(struct hci_dev *hdev, bool enable);
638 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
639 void (*cmd_timeout)(struct hci_dev *hdev);
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 };
648
649 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
650
651 enum conn_reasons {
652 CONN_REASON_PAIR_DEVICE,
653 CONN_REASON_L2CAP_CHAN,
654 CONN_REASON_SCO_CONNECT,
655 CONN_REASON_ISO_CONNECT,
656 };
657
658 struct hci_conn {
659 struct list_head list;
660
661 atomic_t refcnt;
662
663 bdaddr_t dst;
664 __u8 dst_type;
665 bdaddr_t src;
666 __u8 src_type;
667 bdaddr_t init_addr;
668 __u8 init_addr_type;
669 bdaddr_t resp_addr;
670 __u8 resp_addr_type;
671 __u8 adv_instance;
672 __u16 handle;
673 __u16 sync_handle;
674 __u16 state;
675 __u16 mtu;
676 __u8 mode;
677 __u8 type;
678 __u8 role;
679 bool out;
680 __u8 attempt;
681 __u8 dev_class[3];
682 __u8 features[HCI_MAX_PAGES][8];
683 __u16 pkt_type;
684 __u16 link_policy;
685 __u8 key_type;
686 __u8 auth_type;
687 __u8 sec_level;
688 __u8 pending_sec_level;
689 __u8 pin_length;
690 __u8 enc_key_size;
691 __u8 io_capability;
692 __u32 passkey_notify;
693 __u8 passkey_entered;
694 __u16 disc_timeout;
695 __u16 conn_timeout;
696 __u16 setting;
697 __u16 auth_payload_timeout;
698 __u16 le_conn_min_interval;
699 __u16 le_conn_max_interval;
700 __u16 le_conn_interval;
701 __u16 le_conn_latency;
702 __u16 le_supv_timeout;
703 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
704 __u8 le_adv_data_len;
705 __u8 le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
706 __u8 le_per_adv_data_len;
707 __u8 le_tx_phy;
708 __u8 le_rx_phy;
709 __s8 rssi;
710 __s8 tx_power;
711 __s8 max_tx_power;
712 struct bt_iso_qos iso_qos;
713 unsigned long flags;
714
715 enum conn_reasons conn_reason;
716 __u8 abort_reason;
717
718 __u32 clock;
719 __u16 clock_accuracy;
720
721 unsigned long conn_info_timestamp;
722
723 __u8 remote_cap;
724 __u8 remote_auth;
725 __u8 remote_id;
726
727 unsigned int sent;
728
729 struct sk_buff_head data_q;
730 struct list_head chan_list;
731
732 struct delayed_work disc_work;
733 struct delayed_work auto_accept_work;
734 struct delayed_work idle_work;
735 struct delayed_work le_conn_timeout;
736
737 struct device dev;
738 struct dentry *debugfs;
739
740 struct hci_dev *hdev;
741 void *l2cap_data;
742 void *sco_data;
743 void *iso_data;
744
745 struct list_head link_list;
746 struct hci_conn *parent;
747 struct hci_link *link;
748
749 struct bt_codec codec;
750
751 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
752 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
753 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
754
755 void (*cleanup)(struct hci_conn *conn);
756 };
757
758 struct hci_link {
759 struct list_head list;
760 struct hci_conn *conn;
761 };
762
763 struct hci_chan {
764 struct list_head list;
765 __u16 handle;
766 struct hci_conn *conn;
767 struct sk_buff_head data_q;
768 unsigned int sent;
769 __u8 state;
770 };
771
772 struct hci_conn_params {
773 struct list_head list;
774 struct list_head action;
775
776 bdaddr_t addr;
777 u8 addr_type;
778
779 u16 conn_min_interval;
780 u16 conn_max_interval;
781 u16 conn_latency;
782 u16 supervision_timeout;
783
784 enum {
785 HCI_AUTO_CONN_DISABLED,
786 HCI_AUTO_CONN_REPORT,
787 HCI_AUTO_CONN_DIRECT,
788 HCI_AUTO_CONN_ALWAYS,
789 HCI_AUTO_CONN_LINK_LOSS,
790 HCI_AUTO_CONN_EXPLICIT,
791 } auto_connect;
792
793 struct hci_conn *conn;
794 bool explicit_connect;
795 /* Accessed without hdev->lock: */
796 hci_conn_flags_t flags;
797 u8 privacy_mode;
798 };
799
800 extern struct list_head hci_dev_list;
801 extern struct list_head hci_cb_list;
802 extern rwlock_t hci_dev_list_lock;
803 extern struct mutex hci_cb_list_lock;
804
805 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
806 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
807 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
808 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
809 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
810 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
811 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
812
813 #define hci_dev_clear_volatile_flags(hdev) \
814 do { \
815 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
816 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
817 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
818 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
819 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
820 } while (0)
821
822 #define hci_dev_le_state_simultaneous(hdev) \
823 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
824 (hdev->le_states[4] & 0x08) && /* Central */ \
825 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
826 (hdev->le_states[3] & 0x10)) /* Simultaneous */
827
828 /* ----- HCI interface to upper protocols ----- */
829 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
830 int l2cap_disconn_ind(struct hci_conn *hcon);
831 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
832
833 #if IS_ENABLED(CONFIG_BT_BREDR)
834 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
835 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
836 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)837 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
838 __u8 *flags)
839 {
840 return 0;
841 }
842
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)843 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
844 {
845 }
846 #endif
847
848 #if IS_ENABLED(CONFIG_BT_LE)
849 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
850 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
851 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)852 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
853 __u8 *flags)
854 {
855 return 0;
856 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)857 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
858 u16 flags)
859 {
860 }
861 #endif
862
863 /* ----- Inquiry cache ----- */
864 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
865 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
866
discovery_init(struct hci_dev * hdev)867 static inline void discovery_init(struct hci_dev *hdev)
868 {
869 hdev->discovery.state = DISCOVERY_STOPPED;
870 INIT_LIST_HEAD(&hdev->discovery.all);
871 INIT_LIST_HEAD(&hdev->discovery.unknown);
872 INIT_LIST_HEAD(&hdev->discovery.resolve);
873 hdev->discovery.report_invalid_rssi = true;
874 hdev->discovery.rssi = HCI_RSSI_INVALID;
875 }
876
hci_discovery_filter_clear(struct hci_dev * hdev)877 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
878 {
879 hdev->discovery.result_filtering = false;
880 hdev->discovery.report_invalid_rssi = true;
881 hdev->discovery.rssi = HCI_RSSI_INVALID;
882 hdev->discovery.uuid_count = 0;
883 kfree(hdev->discovery.uuids);
884 hdev->discovery.uuids = NULL;
885 hdev->discovery.scan_start = 0;
886 hdev->discovery.scan_duration = 0;
887 }
888
889 bool hci_discovery_active(struct hci_dev *hdev);
890
891 void hci_discovery_set_state(struct hci_dev *hdev, int state);
892
inquiry_cache_empty(struct hci_dev * hdev)893 static inline int inquiry_cache_empty(struct hci_dev *hdev)
894 {
895 return list_empty(&hdev->discovery.all);
896 }
897
inquiry_cache_age(struct hci_dev * hdev)898 static inline long inquiry_cache_age(struct hci_dev *hdev)
899 {
900 struct discovery_state *c = &hdev->discovery;
901 return jiffies - c->timestamp;
902 }
903
inquiry_entry_age(struct inquiry_entry * e)904 static inline long inquiry_entry_age(struct inquiry_entry *e)
905 {
906 return jiffies - e->timestamp;
907 }
908
909 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
910 bdaddr_t *bdaddr);
911 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
912 bdaddr_t *bdaddr);
913 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
914 bdaddr_t *bdaddr,
915 int state);
916 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
917 struct inquiry_entry *ie);
918 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
919 bool name_known);
920 void hci_inquiry_cache_flush(struct hci_dev *hdev);
921
922 /* ----- HCI Connections ----- */
923 enum {
924 HCI_CONN_AUTH_PEND,
925 HCI_CONN_ENCRYPT_PEND,
926 HCI_CONN_RSWITCH_PEND,
927 HCI_CONN_MODE_CHANGE_PEND,
928 HCI_CONN_SCO_SETUP_PEND,
929 HCI_CONN_MGMT_CONNECTED,
930 HCI_CONN_SSP_ENABLED,
931 HCI_CONN_SC_ENABLED,
932 HCI_CONN_AES_CCM,
933 HCI_CONN_POWER_SAVE,
934 HCI_CONN_FLUSH_KEY,
935 HCI_CONN_ENCRYPT,
936 HCI_CONN_AUTH,
937 HCI_CONN_SECURE,
938 HCI_CONN_FIPS,
939 HCI_CONN_STK_ENCRYPT,
940 HCI_CONN_AUTH_INITIATOR,
941 HCI_CONN_DROP,
942 HCI_CONN_CANCEL,
943 HCI_CONN_PARAM_REMOVAL_PEND,
944 HCI_CONN_NEW_LINK_KEY,
945 HCI_CONN_SCANNING,
946 HCI_CONN_AUTH_FAILURE,
947 HCI_CONN_PER_ADV,
948 HCI_CONN_BIG_CREATED,
949 HCI_CONN_CREATE_CIS,
950 HCI_CONN_BIG_SYNC,
951 HCI_CONN_BIG_SYNC_FAILED,
952 HCI_CONN_PA_SYNC,
953 HCI_CONN_PA_SYNC_FAILED,
954 };
955
hci_conn_ssp_enabled(struct hci_conn * conn)956 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
957 {
958 struct hci_dev *hdev = conn->hdev;
959 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
960 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
961 }
962
hci_conn_sc_enabled(struct hci_conn * conn)963 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
964 {
965 struct hci_dev *hdev = conn->hdev;
966 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
967 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
968 }
969
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)970 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
971 {
972 struct hci_conn_hash *h = &hdev->conn_hash;
973 list_add_tail_rcu(&c->list, &h->list);
974 switch (c->type) {
975 case ACL_LINK:
976 h->acl_num++;
977 break;
978 case LE_LINK:
979 h->le_num++;
980 if (c->role == HCI_ROLE_SLAVE)
981 h->le_num_peripheral++;
982 break;
983 case SCO_LINK:
984 case ESCO_LINK:
985 h->sco_num++;
986 break;
987 case ISO_LINK:
988 h->iso_num++;
989 break;
990 }
991 }
992
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)993 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
994 {
995 struct hci_conn_hash *h = &hdev->conn_hash;
996
997 list_del_rcu(&c->list);
998 synchronize_rcu();
999
1000 switch (c->type) {
1001 case ACL_LINK:
1002 h->acl_num--;
1003 break;
1004 case LE_LINK:
1005 h->le_num--;
1006 if (c->role == HCI_ROLE_SLAVE)
1007 h->le_num_peripheral--;
1008 break;
1009 case SCO_LINK:
1010 case ESCO_LINK:
1011 h->sco_num--;
1012 break;
1013 case ISO_LINK:
1014 h->iso_num--;
1015 break;
1016 }
1017 }
1018
hci_conn_num(struct hci_dev * hdev,__u8 type)1019 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1020 {
1021 struct hci_conn_hash *h = &hdev->conn_hash;
1022 switch (type) {
1023 case ACL_LINK:
1024 return h->acl_num;
1025 case LE_LINK:
1026 return h->le_num;
1027 case SCO_LINK:
1028 case ESCO_LINK:
1029 return h->sco_num;
1030 case ISO_LINK:
1031 return h->iso_num;
1032 default:
1033 return 0;
1034 }
1035 }
1036
hci_conn_count(struct hci_dev * hdev)1037 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1038 {
1039 struct hci_conn_hash *c = &hdev->conn_hash;
1040
1041 return c->acl_num + c->sco_num + c->le_num + c->iso_num;
1042 }
1043
hci_conn_valid(struct hci_dev * hdev,struct hci_conn * conn)1044 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn)
1045 {
1046 struct hci_conn_hash *h = &hdev->conn_hash;
1047 struct hci_conn *c;
1048
1049 rcu_read_lock();
1050
1051 list_for_each_entry_rcu(c, &h->list, list) {
1052 if (c == conn) {
1053 rcu_read_unlock();
1054 return true;
1055 }
1056 }
1057 rcu_read_unlock();
1058
1059 return false;
1060 }
1061
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)1062 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1063 {
1064 struct hci_conn_hash *h = &hdev->conn_hash;
1065 struct hci_conn *c;
1066 __u8 type = INVALID_LINK;
1067
1068 rcu_read_lock();
1069
1070 list_for_each_entry_rcu(c, &h->list, list) {
1071 if (c->handle == handle) {
1072 type = c->type;
1073 break;
1074 }
1075 }
1076
1077 rcu_read_unlock();
1078
1079 return type;
1080 }
1081
hci_conn_hash_lookup_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 bis)1082 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1083 bdaddr_t *ba, __u8 bis)
1084 {
1085 struct hci_conn_hash *h = &hdev->conn_hash;
1086 struct hci_conn *c;
1087
1088 rcu_read_lock();
1089
1090 list_for_each_entry_rcu(c, &h->list, list) {
1091 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1092 continue;
1093
1094 if (c->iso_qos.bcast.bis == bis) {
1095 rcu_read_unlock();
1096 return c;
1097 }
1098 }
1099 rcu_read_unlock();
1100
1101 return NULL;
1102 }
1103
1104 static inline struct hci_conn *
hci_conn_hash_lookup_per_adv_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 big,__u8 bis)1105 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1106 bdaddr_t *ba,
1107 __u8 big, __u8 bis)
1108 {
1109 struct hci_conn_hash *h = &hdev->conn_hash;
1110 struct hci_conn *c;
1111
1112 rcu_read_lock();
1113
1114 list_for_each_entry_rcu(c, &h->list, list) {
1115 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1116 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1117 continue;
1118
1119 if (c->iso_qos.bcast.big == big &&
1120 c->iso_qos.bcast.bis == bis) {
1121 rcu_read_unlock();
1122 return c;
1123 }
1124 }
1125 rcu_read_unlock();
1126
1127 return NULL;
1128 }
1129
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)1130 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1131 __u16 handle)
1132 {
1133 struct hci_conn_hash *h = &hdev->conn_hash;
1134 struct hci_conn *c;
1135
1136 rcu_read_lock();
1137
1138 list_for_each_entry_rcu(c, &h->list, list) {
1139 if (c->handle == handle) {
1140 rcu_read_unlock();
1141 return c;
1142 }
1143 }
1144 rcu_read_unlock();
1145
1146 return NULL;
1147 }
1148
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)1149 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1150 __u8 type, bdaddr_t *ba)
1151 {
1152 struct hci_conn_hash *h = &hdev->conn_hash;
1153 struct hci_conn *c;
1154
1155 rcu_read_lock();
1156
1157 list_for_each_entry_rcu(c, &h->list, list) {
1158 if (c->type == type && !bacmp(&c->dst, ba)) {
1159 rcu_read_unlock();
1160 return c;
1161 }
1162 }
1163
1164 rcu_read_unlock();
1165
1166 return NULL;
1167 }
1168
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1169 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1170 bdaddr_t *ba,
1171 __u8 ba_type)
1172 {
1173 struct hci_conn_hash *h = &hdev->conn_hash;
1174 struct hci_conn *c;
1175
1176 rcu_read_lock();
1177
1178 list_for_each_entry_rcu(c, &h->list, list) {
1179 if (c->type != LE_LINK)
1180 continue;
1181
1182 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1183 rcu_read_unlock();
1184 return c;
1185 }
1186 }
1187
1188 rcu_read_unlock();
1189
1190 return NULL;
1191 }
1192
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1193 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1194 bdaddr_t *ba,
1195 __u8 ba_type,
1196 __u8 cig,
1197 __u8 id)
1198 {
1199 struct hci_conn_hash *h = &hdev->conn_hash;
1200 struct hci_conn *c;
1201
1202 rcu_read_lock();
1203
1204 list_for_each_entry_rcu(c, &h->list, list) {
1205 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1206 continue;
1207
1208 /* Match CIG ID if set */
1209 if (cig != c->iso_qos.ucast.cig)
1210 continue;
1211
1212 /* Match CIS ID if set */
1213 if (id != c->iso_qos.ucast.cis)
1214 continue;
1215
1216 /* Match destination address if set */
1217 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1218 rcu_read_unlock();
1219 return c;
1220 }
1221 }
1222
1223 rcu_read_unlock();
1224
1225 return NULL;
1226 }
1227
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1228 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1229 __u8 handle)
1230 {
1231 struct hci_conn_hash *h = &hdev->conn_hash;
1232 struct hci_conn *c;
1233
1234 rcu_read_lock();
1235
1236 list_for_each_entry_rcu(c, &h->list, list) {
1237 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1238 continue;
1239
1240 if (handle == c->iso_qos.ucast.cig) {
1241 rcu_read_unlock();
1242 return c;
1243 }
1244 }
1245
1246 rcu_read_unlock();
1247
1248 return NULL;
1249 }
1250
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1251 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1252 __u8 handle)
1253 {
1254 struct hci_conn_hash *h = &hdev->conn_hash;
1255 struct hci_conn *c;
1256
1257 rcu_read_lock();
1258
1259 list_for_each_entry_rcu(c, &h->list, list) {
1260 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1261 continue;
1262
1263 if (handle == c->iso_qos.bcast.big) {
1264 rcu_read_unlock();
1265 return c;
1266 }
1267 }
1268
1269 rcu_read_unlock();
1270
1271 return NULL;
1272 }
1273
hci_conn_hash_lookup_big_any_dst(struct hci_dev * hdev,__u8 handle)1274 static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(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 != ISO_LINK)
1284 continue;
1285
1286 if (handle != BT_ISO_QOS_BIG_UNSET && handle == c->iso_qos.bcast.big) {
1287 rcu_read_unlock();
1288 return c;
1289 }
1290 }
1291
1292 rcu_read_unlock();
1293
1294 return NULL;
1295 }
1296
1297 static inline struct hci_conn *
hci_conn_hash_lookup_big_state(struct hci_dev * hdev,__u8 handle,__u16 state)1298 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
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 (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK ||
1307 c->state != state)
1308 continue;
1309
1310 if (handle == c->iso_qos.bcast.big) {
1311 rcu_read_unlock();
1312 return c;
1313 }
1314 }
1315
1316 rcu_read_unlock();
1317
1318 return NULL;
1319 }
1320
1321 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1322 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
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 != ISO_LINK ||
1331 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1332 continue;
1333
1334 if (c->iso_qos.bcast.big == big) {
1335 rcu_read_unlock();
1336 return c;
1337 }
1338 }
1339 rcu_read_unlock();
1340
1341 return NULL;
1342 }
1343
1344 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1345 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
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 != ISO_LINK ||
1354 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1355 continue;
1356
1357 if (c->sync_handle == sync_handle) {
1358 rcu_read_unlock();
1359 return c;
1360 }
1361 }
1362 rcu_read_unlock();
1363
1364 return NULL;
1365 }
1366
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1367 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1368 __u8 type, __u16 state)
1369 {
1370 struct hci_conn_hash *h = &hdev->conn_hash;
1371 struct hci_conn *c;
1372
1373 rcu_read_lock();
1374
1375 list_for_each_entry_rcu(c, &h->list, list) {
1376 if (c->type == type && c->state == state) {
1377 rcu_read_unlock();
1378 return c;
1379 }
1380 }
1381
1382 rcu_read_unlock();
1383
1384 return NULL;
1385 }
1386
1387 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)1388 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1389 hci_conn_func_t func, __u8 type,
1390 __u16 state, void *data)
1391 {
1392 struct hci_conn_hash *h = &hdev->conn_hash;
1393 struct hci_conn *c;
1394
1395 if (!func)
1396 return;
1397
1398 rcu_read_lock();
1399
1400 list_for_each_entry_rcu(c, &h->list, list) {
1401 if (c->type == type && c->state == state)
1402 func(c, data);
1403 }
1404
1405 rcu_read_unlock();
1406 }
1407
hci_lookup_le_connect(struct hci_dev * hdev)1408 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1409 {
1410 struct hci_conn_hash *h = &hdev->conn_hash;
1411 struct hci_conn *c;
1412
1413 rcu_read_lock();
1414
1415 list_for_each_entry_rcu(c, &h->list, list) {
1416 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1417 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1418 rcu_read_unlock();
1419 return c;
1420 }
1421 }
1422
1423 rcu_read_unlock();
1424
1425 return NULL;
1426 }
1427
1428 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1429 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1430 {
1431 struct hci_conn_hash *h = &hdev->conn_hash;
1432 struct hci_conn *c;
1433
1434 rcu_read_lock();
1435
1436 list_for_each_entry_rcu(c, &h->list, list) {
1437 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1438 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1439 rcu_read_unlock();
1440 return true;
1441 }
1442 }
1443
1444 rcu_read_unlock();
1445
1446 return false;
1447 }
1448
1449 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1450 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1451 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1452 bool hci_iso_setup_path(struct hci_conn *conn);
1453 int hci_le_create_cis_pending(struct hci_dev *hdev);
1454 int hci_conn_check_create_cis(struct hci_conn *conn);
1455
1456 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1457 u8 role, u16 handle);
1458 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1459 bdaddr_t *dst, u8 role);
1460 void hci_conn_del(struct hci_conn *conn);
1461 void hci_conn_hash_flush(struct hci_dev *hdev);
1462
1463 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1464 void hci_chan_del(struct hci_chan *chan);
1465 void hci_chan_list_flush(struct hci_conn *conn);
1466 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1467
1468 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1469 u8 dst_type, u8 sec_level,
1470 u16 conn_timeout,
1471 enum conn_reasons conn_reason);
1472 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1473 u8 dst_type, bool dst_resolved, u8 sec_level,
1474 u16 conn_timeout, u8 role);
1475 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1476 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1477 u8 sec_level, u8 auth_type,
1478 enum conn_reasons conn_reason);
1479 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1480 __u16 setting, struct bt_codec *codec);
1481 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1482 __u8 dst_type, struct bt_iso_qos *qos);
1483 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1484 struct bt_iso_qos *qos,
1485 __u8 base_len, __u8 *base);
1486 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1487 __u8 dst_type, struct bt_iso_qos *qos);
1488 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1489 __u8 dst_type, struct bt_iso_qos *qos,
1490 __u8 data_len, __u8 *data);
1491 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1492 __u8 sid, struct bt_iso_qos *qos);
1493 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1494 struct bt_iso_qos *qos,
1495 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1496 int hci_conn_check_link_mode(struct hci_conn *conn);
1497 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1498 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1499 bool initiator);
1500 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1501
1502 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1503
1504 void hci_conn_failed(struct hci_conn *conn, u8 status);
1505 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1506
1507 /*
1508 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1509 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1510 * working or anything else. They just guarantee that the object is available
1511 * and can be dereferenced. So you can use its locks, local variables and any
1512 * other constant data.
1513 * Before accessing runtime data, you _must_ lock the object and then check that
1514 * it is still running. As soon as you release the locks, the connection might
1515 * get dropped, though.
1516 *
1517 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1518 * how long the underlying connection is held. So every channel that runs on the
1519 * hci_conn object calls this to prevent the connection from disappearing. As
1520 * long as you hold a device, you must also guarantee that you have a valid
1521 * reference to the device via hci_conn_get() (or the initial reference from
1522 * hci_conn_add()).
1523 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1524 * break because nobody cares for that. But this means, we cannot use
1525 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1526 */
1527
hci_conn_get(struct hci_conn * conn)1528 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1529 {
1530 get_device(&conn->dev);
1531 return conn;
1532 }
1533
hci_conn_put(struct hci_conn * conn)1534 static inline void hci_conn_put(struct hci_conn *conn)
1535 {
1536 put_device(&conn->dev);
1537 }
1538
hci_conn_hold(struct hci_conn * conn)1539 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1540 {
1541 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1542
1543 atomic_inc(&conn->refcnt);
1544 cancel_delayed_work(&conn->disc_work);
1545
1546 return conn;
1547 }
1548
hci_conn_drop(struct hci_conn * conn)1549 static inline void hci_conn_drop(struct hci_conn *conn)
1550 {
1551 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1552
1553 if (atomic_dec_and_test(&conn->refcnt)) {
1554 unsigned long timeo;
1555
1556 switch (conn->type) {
1557 case ACL_LINK:
1558 case LE_LINK:
1559 cancel_delayed_work(&conn->idle_work);
1560 if (conn->state == BT_CONNECTED) {
1561 timeo = conn->disc_timeout;
1562 if (!conn->out)
1563 timeo *= 2;
1564 } else {
1565 timeo = 0;
1566 }
1567 break;
1568
1569 default:
1570 timeo = 0;
1571 break;
1572 }
1573
1574 cancel_delayed_work(&conn->disc_work);
1575 queue_delayed_work(conn->hdev->workqueue,
1576 &conn->disc_work, timeo);
1577 }
1578 }
1579
1580 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1581 static inline void hci_dev_put(struct hci_dev *d)
1582 {
1583 BT_DBG("%s orig refcnt %d", d->name,
1584 kref_read(&d->dev.kobj.kref));
1585
1586 put_device(&d->dev);
1587 }
1588
hci_dev_hold(struct hci_dev * d)1589 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1590 {
1591 BT_DBG("%s orig refcnt %d", d->name,
1592 kref_read(&d->dev.kobj.kref));
1593
1594 get_device(&d->dev);
1595 return d;
1596 }
1597
1598 #define hci_dev_lock(d) mutex_lock(&d->lock)
1599 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1600
1601 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1602 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1603
hci_get_drvdata(struct hci_dev * hdev)1604 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1605 {
1606 return dev_get_drvdata(&hdev->dev);
1607 }
1608
hci_set_drvdata(struct hci_dev * hdev,void * data)1609 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1610 {
1611 dev_set_drvdata(&hdev->dev, data);
1612 }
1613
hci_get_priv(struct hci_dev * hdev)1614 static inline void *hci_get_priv(struct hci_dev *hdev)
1615 {
1616 return (char *)hdev + sizeof(*hdev);
1617 }
1618
1619 struct hci_dev *hci_dev_get(int index);
1620 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1621
1622 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1623
hci_alloc_dev(void)1624 static inline struct hci_dev *hci_alloc_dev(void)
1625 {
1626 return hci_alloc_dev_priv(0);
1627 }
1628
1629 void hci_free_dev(struct hci_dev *hdev);
1630 int hci_register_dev(struct hci_dev *hdev);
1631 void hci_unregister_dev(struct hci_dev *hdev);
1632 void hci_release_dev(struct hci_dev *hdev);
1633 int hci_register_suspend_notifier(struct hci_dev *hdev);
1634 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1635 int hci_suspend_dev(struct hci_dev *hdev);
1636 int hci_resume_dev(struct hci_dev *hdev);
1637 int hci_reset_dev(struct hci_dev *hdev);
1638 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1639 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1640 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1641 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1642
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1643 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1644 {
1645 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1646 hdev->msft_opcode = opcode;
1647 #endif
1648 }
1649
hci_set_aosp_capable(struct hci_dev * hdev)1650 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1651 {
1652 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1653 hdev->aosp_capable = true;
1654 #endif
1655 }
1656
hci_devcd_setup(struct hci_dev * hdev)1657 static inline void hci_devcd_setup(struct hci_dev *hdev)
1658 {
1659 #ifdef CONFIG_DEV_COREDUMP
1660 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1661 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1662 skb_queue_head_init(&hdev->dump.dump_q);
1663 #endif
1664 }
1665
1666 int hci_dev_open(__u16 dev);
1667 int hci_dev_close(__u16 dev);
1668 int hci_dev_do_close(struct hci_dev *hdev);
1669 int hci_dev_reset(__u16 dev);
1670 int hci_dev_reset_stat(__u16 dev);
1671 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1672 int hci_get_dev_list(void __user *arg);
1673 int hci_get_dev_info(void __user *arg);
1674 int hci_get_conn_list(void __user *arg);
1675 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1676 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1677 int hci_inquiry(void __user *arg);
1678
1679 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1680 bdaddr_t *bdaddr, u8 type);
1681 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1682 struct list_head *list, bdaddr_t *bdaddr,
1683 u8 type);
1684 struct bdaddr_list_with_flags *
1685 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1686 u8 type);
1687 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1688 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1689 u8 type, u8 *peer_irk, u8 *local_irk);
1690 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1691 u8 type, u32 flags);
1692 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1693 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1694 u8 type);
1695 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1696 u8 type);
1697 void hci_bdaddr_list_clear(struct list_head *list);
1698
1699 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1700 bdaddr_t *addr, u8 addr_type);
1701 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1702 bdaddr_t *addr, u8 addr_type);
1703 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1704 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1705 void hci_conn_params_free(struct hci_conn_params *param);
1706
1707 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1708 void hci_pend_le_list_add(struct hci_conn_params *param,
1709 struct list_head *list);
1710 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1711 bdaddr_t *addr,
1712 u8 addr_type);
1713
1714 void hci_uuids_clear(struct hci_dev *hdev);
1715
1716 void hci_link_keys_clear(struct hci_dev *hdev);
1717 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1718 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1719 bdaddr_t *bdaddr, u8 *val, u8 type,
1720 u8 pin_len, bool *persistent);
1721 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1722 u8 addr_type, u8 type, u8 authenticated,
1723 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1724 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1725 u8 addr_type, u8 role);
1726 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1727 void hci_smp_ltks_clear(struct hci_dev *hdev);
1728 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1729
1730 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1731 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1732 u8 addr_type);
1733 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1734 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1735 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1736 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1737 void hci_blocked_keys_clear(struct hci_dev *hdev);
1738 void hci_smp_irks_clear(struct hci_dev *hdev);
1739
1740 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1741
1742 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1743 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1744 bdaddr_t *bdaddr, u8 bdaddr_type);
1745 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1746 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1747 u8 *hash256, u8 *rand256);
1748 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1749 u8 bdaddr_type);
1750
1751 void hci_adv_instances_clear(struct hci_dev *hdev);
1752 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1753 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1754 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1755 u32 flags, u16 adv_data_len, u8 *adv_data,
1756 u16 scan_rsp_len, u8 *scan_rsp_data,
1757 u16 timeout, u16 duration, s8 tx_power,
1758 u32 min_interval, u32 max_interval,
1759 u8 mesh_handle);
1760 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1761 u32 flags, u8 data_len, u8 *data,
1762 u32 min_interval, u32 max_interval);
1763 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1764 u16 adv_data_len, u8 *adv_data,
1765 u16 scan_rsp_len, u8 *scan_rsp_data);
1766 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1767 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1768 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1769 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1770
1771 void hci_adv_monitors_clear(struct hci_dev *hdev);
1772 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1773 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1774 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1775 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1776 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1777 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1778
1779 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1780
1781 void hci_init_sysfs(struct hci_dev *hdev);
1782 void hci_conn_init_sysfs(struct hci_conn *conn);
1783 void hci_conn_add_sysfs(struct hci_conn *conn);
1784 void hci_conn_del_sysfs(struct hci_conn *conn);
1785
1786 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1787 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1788
1789 /* ----- LMP capabilities ----- */
1790 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1791 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1792 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1793 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1794 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1795 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1796 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1797 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1798 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1799 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1800 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1801 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1802 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1803 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1804 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1805 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1806 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1807 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1808 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1809 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1810 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1811 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1812 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1813 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1814
1815 /* ----- Extended LMP capabilities ----- */
1816 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1817 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1818 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1819 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1820 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1821 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1822
1823 /* ----- Host capabilities ----- */
1824 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1825 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1826 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1827 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1828
1829 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1830 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1831 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1832 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1833 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1834 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1835 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1836 !adv->rpa_expired)
1837
1838 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1839 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1840
1841 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1842
1843 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1844 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1845
1846 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1847 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1848 &(dev)->quirks))
1849
1850 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1851 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1852
1853 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1854
1855 /* Use LL Privacy based address resolution if supported */
1856 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1857 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1858
1859 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1860 (hdev->commands[39] & 0x04))
1861
1862 #define read_key_size_capable(dev) \
1863 ((dev)->commands[20] & 0x10 && \
1864 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1865
1866 /* Use enhanced synchronous connection if command is supported and its quirk
1867 * has not been set.
1868 */
1869 #define enhanced_sync_conn_capable(dev) \
1870 (((dev)->commands[29] & 0x08) && \
1871 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1872
1873 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1874 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1875 ((dev)->commands[37] & 0x40) && \
1876 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1877
1878 /* Use ext create connection if command is supported */
1879 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
1880 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
1881 /* Extended advertising support */
1882 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1883
1884 /* Maximum advertising length */
1885 #define max_adv_len(dev) \
1886 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1887
1888 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1889 *
1890 * C24: Mandatory if the LE Controller supports Connection State and either
1891 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1892 */
1893 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
1894 ext_adv_capable(dev)) && \
1895 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
1896 &(dev)->quirks))
1897
1898 /* Periodic advertising support */
1899 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1900
1901 /* CIS Master/Slave and BIS support */
1902 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1903 #define cis_capable(dev) \
1904 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1905 #define cis_central_capable(dev) \
1906 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1907 #define cis_peripheral_capable(dev) \
1908 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1909 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1910 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1911
1912 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1913 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1914
1915 /* ----- HCI protocols ----- */
1916 #define HCI_PROTO_DEFER 0x01
1917
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1918 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1919 __u8 type, __u8 *flags)
1920 {
1921 switch (type) {
1922 case ACL_LINK:
1923 return l2cap_connect_ind(hdev, bdaddr);
1924
1925 case SCO_LINK:
1926 case ESCO_LINK:
1927 return sco_connect_ind(hdev, bdaddr, flags);
1928
1929 case ISO_LINK:
1930 return iso_connect_ind(hdev, bdaddr, flags);
1931
1932 default:
1933 BT_ERR("unknown link type %d", type);
1934 return -EINVAL;
1935 }
1936 }
1937
hci_proto_disconn_ind(struct hci_conn * conn)1938 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1939 {
1940 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1941 return HCI_ERROR_REMOTE_USER_TERM;
1942
1943 return l2cap_disconn_ind(conn);
1944 }
1945
1946 /* ----- HCI callbacks ----- */
1947 struct hci_cb {
1948 struct list_head list;
1949
1950 char *name;
1951
1952 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1953 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1954 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1955 __u8 encrypt);
1956 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1957 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1958 };
1959
hci_connect_cfm(struct hci_conn * conn,__u8 status)1960 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1961 {
1962 struct hci_cb *cb;
1963
1964 mutex_lock(&hci_cb_list_lock);
1965 list_for_each_entry(cb, &hci_cb_list, list) {
1966 if (cb->connect_cfm)
1967 cb->connect_cfm(conn, status);
1968 }
1969 mutex_unlock(&hci_cb_list_lock);
1970
1971 if (conn->connect_cfm_cb)
1972 conn->connect_cfm_cb(conn, status);
1973 }
1974
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1975 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1976 {
1977 struct hci_cb *cb;
1978
1979 mutex_lock(&hci_cb_list_lock);
1980 list_for_each_entry(cb, &hci_cb_list, list) {
1981 if (cb->disconn_cfm)
1982 cb->disconn_cfm(conn, reason);
1983 }
1984 mutex_unlock(&hci_cb_list_lock);
1985
1986 if (conn->disconn_cfm_cb)
1987 conn->disconn_cfm_cb(conn, reason);
1988 }
1989
hci_auth_cfm(struct hci_conn * conn,__u8 status)1990 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1991 {
1992 struct hci_cb *cb;
1993 __u8 encrypt;
1994
1995 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1996 return;
1997
1998 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1999
2000 mutex_lock(&hci_cb_list_lock);
2001 list_for_each_entry(cb, &hci_cb_list, list) {
2002 if (cb->security_cfm)
2003 cb->security_cfm(conn, status, encrypt);
2004 }
2005 mutex_unlock(&hci_cb_list_lock);
2006
2007 if (conn->security_cfm_cb)
2008 conn->security_cfm_cb(conn, status);
2009 }
2010
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2011 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2012 {
2013 struct hci_cb *cb;
2014 __u8 encrypt;
2015
2016 if (conn->state == BT_CONFIG) {
2017 if (!status)
2018 conn->state = BT_CONNECTED;
2019
2020 hci_connect_cfm(conn, status);
2021 hci_conn_drop(conn);
2022 return;
2023 }
2024
2025 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2026 encrypt = 0x00;
2027 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2028 encrypt = 0x02;
2029 else
2030 encrypt = 0x01;
2031
2032 if (!status) {
2033 if (conn->sec_level == BT_SECURITY_SDP)
2034 conn->sec_level = BT_SECURITY_LOW;
2035
2036 if (conn->pending_sec_level > conn->sec_level)
2037 conn->sec_level = conn->pending_sec_level;
2038 }
2039
2040 mutex_lock(&hci_cb_list_lock);
2041 list_for_each_entry(cb, &hci_cb_list, list) {
2042 if (cb->security_cfm)
2043 cb->security_cfm(conn, status, encrypt);
2044 }
2045 mutex_unlock(&hci_cb_list_lock);
2046
2047 if (conn->security_cfm_cb)
2048 conn->security_cfm_cb(conn, status);
2049 }
2050
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2051 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2052 {
2053 struct hci_cb *cb;
2054
2055 mutex_lock(&hci_cb_list_lock);
2056 list_for_each_entry(cb, &hci_cb_list, list) {
2057 if (cb->key_change_cfm)
2058 cb->key_change_cfm(conn, status);
2059 }
2060 mutex_unlock(&hci_cb_list_lock);
2061 }
2062
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2063 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2064 __u8 role)
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->role_switch_cfm)
2071 cb->role_switch_cfm(conn, status, role);
2072 }
2073 mutex_unlock(&hci_cb_list_lock);
2074 }
2075
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2076 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2077 {
2078 if (addr_type != ADDR_LE_DEV_RANDOM)
2079 return false;
2080
2081 if ((bdaddr->b[5] & 0xc0) == 0x40)
2082 return true;
2083
2084 return false;
2085 }
2086
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2087 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2088 {
2089 if (addr_type == ADDR_LE_DEV_PUBLIC)
2090 return true;
2091
2092 /* Check for Random Static address type */
2093 if ((addr->b[5] & 0xc0) == 0xc0)
2094 return true;
2095
2096 return false;
2097 }
2098
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2099 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2100 bdaddr_t *bdaddr, u8 addr_type)
2101 {
2102 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2103 return NULL;
2104
2105 return hci_find_irk_by_rpa(hdev, bdaddr);
2106 }
2107
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2108 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2109 u16 to_multiplier)
2110 {
2111 u16 max_latency;
2112
2113 if (min > max) {
2114 BT_WARN("min %d > max %d", min, max);
2115 return -EINVAL;
2116 }
2117
2118 if (min < 6) {
2119 BT_WARN("min %d < 6", min);
2120 return -EINVAL;
2121 }
2122
2123 if (max > 3200) {
2124 BT_WARN("max %d > 3200", max);
2125 return -EINVAL;
2126 }
2127
2128 if (to_multiplier < 10) {
2129 BT_WARN("to_multiplier %d < 10", to_multiplier);
2130 return -EINVAL;
2131 }
2132
2133 if (to_multiplier > 3200) {
2134 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2135 return -EINVAL;
2136 }
2137
2138 if (max >= to_multiplier * 8) {
2139 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2140 return -EINVAL;
2141 }
2142
2143 max_latency = (to_multiplier * 4 / max) - 1;
2144 if (latency > 499) {
2145 BT_WARN("latency %d > 499", latency);
2146 return -EINVAL;
2147 }
2148
2149 if (latency > max_latency) {
2150 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2151 return -EINVAL;
2152 }
2153
2154 return 0;
2155 }
2156
2157 int hci_register_cb(struct hci_cb *hcb);
2158 int hci_unregister_cb(struct hci_cb *hcb);
2159
2160 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2161 const void *param);
2162
2163 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2164 const void *param);
2165 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2166 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2167 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2168
2169 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2170 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2171
2172 u32 hci_conn_get_phy(struct hci_conn *conn);
2173
2174 /* ----- HCI Sockets ----- */
2175 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2176 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2177 int flag, struct sock *skip_sk);
2178 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2179 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2180 void *data, u16 data_len, ktime_t tstamp,
2181 int flag, struct sock *skip_sk);
2182
2183 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2184
2185 #define HCI_MGMT_VAR_LEN BIT(0)
2186 #define HCI_MGMT_NO_HDEV BIT(1)
2187 #define HCI_MGMT_UNTRUSTED BIT(2)
2188 #define HCI_MGMT_UNCONFIGURED BIT(3)
2189 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2190
2191 struct hci_mgmt_handler {
2192 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2193 u16 data_len);
2194 size_t data_len;
2195 unsigned long flags;
2196 };
2197
2198 struct hci_mgmt_chan {
2199 struct list_head list;
2200 unsigned short channel;
2201 size_t handler_count;
2202 const struct hci_mgmt_handler *handlers;
2203 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2204 };
2205
2206 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2207 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2208
2209 /* Management interface */
2210 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2211 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2212 BIT(BDADDR_LE_RANDOM))
2213 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2214 BIT(BDADDR_LE_PUBLIC) | \
2215 BIT(BDADDR_LE_RANDOM))
2216
2217 /* These LE scan and inquiry parameters were chosen according to LE General
2218 * Discovery Procedure specification.
2219 */
2220 #define DISCOV_LE_SCAN_WIN 0x12
2221 #define DISCOV_LE_SCAN_INT 0x12
2222 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2223 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2224 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2225 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2226 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2227 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2228 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2229 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2230 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2231 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2232 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2233 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2234
2235 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2236
2237 void mgmt_fill_version_info(void *ver);
2238 int mgmt_new_settings(struct hci_dev *hdev);
2239 void mgmt_index_added(struct hci_dev *hdev);
2240 void mgmt_index_removed(struct hci_dev *hdev);
2241 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2242 void mgmt_power_on(struct hci_dev *hdev, int err);
2243 void __mgmt_power_off(struct hci_dev *hdev);
2244 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2245 bool persistent);
2246 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2247 u8 *name, u8 name_len);
2248 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2249 u8 link_type, u8 addr_type, u8 reason,
2250 bool mgmt_connected);
2251 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2252 u8 link_type, u8 addr_type, u8 status);
2253 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
2254 u8 status);
2255 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2256 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2257 u8 status);
2258 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2259 u8 status);
2260 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2261 u8 link_type, u8 addr_type, u32 value,
2262 u8 confirm_hint);
2263 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2264 u8 link_type, u8 addr_type, u8 status);
2265 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2266 u8 link_type, u8 addr_type, u8 status);
2267 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2268 u8 link_type, u8 addr_type);
2269 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2270 u8 link_type, u8 addr_type, u8 status);
2271 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2272 u8 link_type, u8 addr_type, u8 status);
2273 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2274 u8 link_type, u8 addr_type, u32 passkey,
2275 u8 entered);
2276 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2277 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2278 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2279 u8 status);
2280 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2281 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2282 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2283 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2284 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2285 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2286 u64 instant);
2287 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2288 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2289 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2290 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2291 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2292 u8 addr_type);
2293 bool mgmt_powering_down(struct hci_dev *hdev);
2294 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2295 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2296 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2297 bool persistent);
2298 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2299 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2300 u16 max_interval, u16 latency, u16 timeout);
2301 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2302 bool mgmt_get_connectable(struct hci_dev *hdev);
2303 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2304 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2305 u8 instance);
2306 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2307 u8 instance);
2308 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2309 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2310 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2311 bdaddr_t *bdaddr, u8 addr_type);
2312
2313 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2314 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2315 u16 to_multiplier);
2316 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2317 __u8 ltk[16], __u8 key_size);
2318
2319 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2320 u8 *bdaddr_type);
2321
2322 #define SCO_AIRMODE_MASK 0x0003
2323 #define SCO_AIRMODE_CVSD 0x0000
2324 #define SCO_AIRMODE_TRANSP 0x0003
2325
2326 #define LOCAL_CODEC_ACL_MASK BIT(0)
2327 #define LOCAL_CODEC_SCO_MASK BIT(1)
2328
2329 #define TRANSPORT_TYPE_MAX 0x04
2330
2331 #endif /* __HCI_CORE_H */
2332