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_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1298 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1299 {
1300 struct hci_conn_hash *h = &hdev->conn_hash;
1301 struct hci_conn *c;
1302
1303 rcu_read_lock();
1304
1305 list_for_each_entry_rcu(c, &h->list, list) {
1306 if (c->type != ISO_LINK ||
1307 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1308 continue;
1309
1310 if (c->iso_qos.bcast.big == big) {
1311 rcu_read_unlock();
1312 return c;
1313 }
1314 }
1315 rcu_read_unlock();
1316
1317 return NULL;
1318 }
1319
1320 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1321 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1322 {
1323 struct hci_conn_hash *h = &hdev->conn_hash;
1324 struct hci_conn *c;
1325
1326 rcu_read_lock();
1327
1328 list_for_each_entry_rcu(c, &h->list, list) {
1329 if (c->type != ISO_LINK ||
1330 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1331 continue;
1332
1333 if (c->sync_handle == sync_handle) {
1334 rcu_read_unlock();
1335 return c;
1336 }
1337 }
1338 rcu_read_unlock();
1339
1340 return NULL;
1341 }
1342
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1343 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1344 __u8 type, __u16 state)
1345 {
1346 struct hci_conn_hash *h = &hdev->conn_hash;
1347 struct hci_conn *c;
1348
1349 rcu_read_lock();
1350
1351 list_for_each_entry_rcu(c, &h->list, list) {
1352 if (c->type == type && c->state == state) {
1353 rcu_read_unlock();
1354 return c;
1355 }
1356 }
1357
1358 rcu_read_unlock();
1359
1360 return NULL;
1361 }
1362
1363 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)1364 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1365 hci_conn_func_t func, __u8 type,
1366 __u16 state, void *data)
1367 {
1368 struct hci_conn_hash *h = &hdev->conn_hash;
1369 struct hci_conn *c;
1370
1371 if (!func)
1372 return;
1373
1374 rcu_read_lock();
1375
1376 list_for_each_entry_rcu(c, &h->list, list) {
1377 if (c->type == type && c->state == state)
1378 func(c, data);
1379 }
1380
1381 rcu_read_unlock();
1382 }
1383
hci_lookup_le_connect(struct hci_dev * hdev)1384 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1385 {
1386 struct hci_conn_hash *h = &hdev->conn_hash;
1387 struct hci_conn *c;
1388
1389 rcu_read_lock();
1390
1391 list_for_each_entry_rcu(c, &h->list, list) {
1392 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1393 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1394 rcu_read_unlock();
1395 return c;
1396 }
1397 }
1398
1399 rcu_read_unlock();
1400
1401 return NULL;
1402 }
1403
1404 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1405 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1406 {
1407 struct hci_conn_hash *h = &hdev->conn_hash;
1408 struct hci_conn *c;
1409
1410 rcu_read_lock();
1411
1412 list_for_each_entry_rcu(c, &h->list, list) {
1413 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1414 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1415 rcu_read_unlock();
1416 return true;
1417 }
1418 }
1419
1420 rcu_read_unlock();
1421
1422 return false;
1423 }
1424
1425 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1426 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1427 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1428 bool hci_iso_setup_path(struct hci_conn *conn);
1429 int hci_le_create_cis_pending(struct hci_dev *hdev);
1430 int hci_conn_check_create_cis(struct hci_conn *conn);
1431
1432 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1433 u8 role, u16 handle);
1434 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1435 bdaddr_t *dst, u8 role);
1436 void hci_conn_del(struct hci_conn *conn);
1437 void hci_conn_hash_flush(struct hci_dev *hdev);
1438
1439 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1440 void hci_chan_del(struct hci_chan *chan);
1441 void hci_chan_list_flush(struct hci_conn *conn);
1442 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1443
1444 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1445 u8 dst_type, u8 sec_level,
1446 u16 conn_timeout,
1447 enum conn_reasons conn_reason);
1448 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1449 u8 dst_type, bool dst_resolved, u8 sec_level,
1450 u16 conn_timeout, u8 role);
1451 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1452 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1453 u8 sec_level, u8 auth_type,
1454 enum conn_reasons conn_reason);
1455 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1456 __u16 setting, struct bt_codec *codec);
1457 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1458 __u8 dst_type, struct bt_iso_qos *qos);
1459 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1460 struct bt_iso_qos *qos,
1461 __u8 base_len, __u8 *base);
1462 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1463 __u8 dst_type, struct bt_iso_qos *qos);
1464 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1465 __u8 dst_type, struct bt_iso_qos *qos,
1466 __u8 data_len, __u8 *data);
1467 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1468 __u8 sid, struct bt_iso_qos *qos);
1469 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1470 struct bt_iso_qos *qos,
1471 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1472 int hci_conn_check_link_mode(struct hci_conn *conn);
1473 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1474 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1475 bool initiator);
1476 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1477
1478 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1479
1480 void hci_conn_failed(struct hci_conn *conn, u8 status);
1481 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1482
1483 /*
1484 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1485 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1486 * working or anything else. They just guarantee that the object is available
1487 * and can be dereferenced. So you can use its locks, local variables and any
1488 * other constant data.
1489 * Before accessing runtime data, you _must_ lock the object and then check that
1490 * it is still running. As soon as you release the locks, the connection might
1491 * get dropped, though.
1492 *
1493 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1494 * how long the underlying connection is held. So every channel that runs on the
1495 * hci_conn object calls this to prevent the connection from disappearing. As
1496 * long as you hold a device, you must also guarantee that you have a valid
1497 * reference to the device via hci_conn_get() (or the initial reference from
1498 * hci_conn_add()).
1499 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1500 * break because nobody cares for that. But this means, we cannot use
1501 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1502 */
1503
hci_conn_get(struct hci_conn * conn)1504 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1505 {
1506 get_device(&conn->dev);
1507 return conn;
1508 }
1509
hci_conn_put(struct hci_conn * conn)1510 static inline void hci_conn_put(struct hci_conn *conn)
1511 {
1512 put_device(&conn->dev);
1513 }
1514
hci_conn_hold(struct hci_conn * conn)1515 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1516 {
1517 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1518
1519 atomic_inc(&conn->refcnt);
1520 cancel_delayed_work(&conn->disc_work);
1521
1522 return conn;
1523 }
1524
hci_conn_drop(struct hci_conn * conn)1525 static inline void hci_conn_drop(struct hci_conn *conn)
1526 {
1527 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1528
1529 if (atomic_dec_and_test(&conn->refcnt)) {
1530 unsigned long timeo;
1531
1532 switch (conn->type) {
1533 case ACL_LINK:
1534 case LE_LINK:
1535 cancel_delayed_work(&conn->idle_work);
1536 if (conn->state == BT_CONNECTED) {
1537 timeo = conn->disc_timeout;
1538 if (!conn->out)
1539 timeo *= 2;
1540 } else {
1541 timeo = 0;
1542 }
1543 break;
1544
1545 default:
1546 timeo = 0;
1547 break;
1548 }
1549
1550 cancel_delayed_work(&conn->disc_work);
1551 queue_delayed_work(conn->hdev->workqueue,
1552 &conn->disc_work, timeo);
1553 }
1554 }
1555
1556 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1557 static inline void hci_dev_put(struct hci_dev *d)
1558 {
1559 BT_DBG("%s orig refcnt %d", d->name,
1560 kref_read(&d->dev.kobj.kref));
1561
1562 put_device(&d->dev);
1563 }
1564
hci_dev_hold(struct hci_dev * d)1565 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1566 {
1567 BT_DBG("%s orig refcnt %d", d->name,
1568 kref_read(&d->dev.kobj.kref));
1569
1570 get_device(&d->dev);
1571 return d;
1572 }
1573
1574 #define hci_dev_lock(d) mutex_lock(&d->lock)
1575 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1576
1577 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1578 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1579
hci_get_drvdata(struct hci_dev * hdev)1580 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1581 {
1582 return dev_get_drvdata(&hdev->dev);
1583 }
1584
hci_set_drvdata(struct hci_dev * hdev,void * data)1585 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1586 {
1587 dev_set_drvdata(&hdev->dev, data);
1588 }
1589
hci_get_priv(struct hci_dev * hdev)1590 static inline void *hci_get_priv(struct hci_dev *hdev)
1591 {
1592 return (char *)hdev + sizeof(*hdev);
1593 }
1594
1595 struct hci_dev *hci_dev_get(int index);
1596 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1597
1598 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1599
hci_alloc_dev(void)1600 static inline struct hci_dev *hci_alloc_dev(void)
1601 {
1602 return hci_alloc_dev_priv(0);
1603 }
1604
1605 void hci_free_dev(struct hci_dev *hdev);
1606 int hci_register_dev(struct hci_dev *hdev);
1607 void hci_unregister_dev(struct hci_dev *hdev);
1608 void hci_release_dev(struct hci_dev *hdev);
1609 int hci_register_suspend_notifier(struct hci_dev *hdev);
1610 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1611 int hci_suspend_dev(struct hci_dev *hdev);
1612 int hci_resume_dev(struct hci_dev *hdev);
1613 int hci_reset_dev(struct hci_dev *hdev);
1614 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1615 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1616 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1617 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1618
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1619 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1620 {
1621 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1622 hdev->msft_opcode = opcode;
1623 #endif
1624 }
1625
hci_set_aosp_capable(struct hci_dev * hdev)1626 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1627 {
1628 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1629 hdev->aosp_capable = true;
1630 #endif
1631 }
1632
hci_devcd_setup(struct hci_dev * hdev)1633 static inline void hci_devcd_setup(struct hci_dev *hdev)
1634 {
1635 #ifdef CONFIG_DEV_COREDUMP
1636 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1637 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1638 skb_queue_head_init(&hdev->dump.dump_q);
1639 #endif
1640 }
1641
1642 int hci_dev_open(__u16 dev);
1643 int hci_dev_close(__u16 dev);
1644 int hci_dev_do_close(struct hci_dev *hdev);
1645 int hci_dev_reset(__u16 dev);
1646 int hci_dev_reset_stat(__u16 dev);
1647 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1648 int hci_get_dev_list(void __user *arg);
1649 int hci_get_dev_info(void __user *arg);
1650 int hci_get_conn_list(void __user *arg);
1651 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1652 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1653 int hci_inquiry(void __user *arg);
1654
1655 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1656 bdaddr_t *bdaddr, u8 type);
1657 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1658 struct list_head *list, bdaddr_t *bdaddr,
1659 u8 type);
1660 struct bdaddr_list_with_flags *
1661 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1662 u8 type);
1663 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1664 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1665 u8 type, u8 *peer_irk, u8 *local_irk);
1666 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1667 u8 type, u32 flags);
1668 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1669 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1670 u8 type);
1671 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1672 u8 type);
1673 void hci_bdaddr_list_clear(struct list_head *list);
1674
1675 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1676 bdaddr_t *addr, u8 addr_type);
1677 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1678 bdaddr_t *addr, u8 addr_type);
1679 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1680 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1681 void hci_conn_params_free(struct hci_conn_params *param);
1682
1683 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1684 void hci_pend_le_list_add(struct hci_conn_params *param,
1685 struct list_head *list);
1686 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1687 bdaddr_t *addr,
1688 u8 addr_type);
1689
1690 void hci_uuids_clear(struct hci_dev *hdev);
1691
1692 void hci_link_keys_clear(struct hci_dev *hdev);
1693 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1694 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1695 bdaddr_t *bdaddr, u8 *val, u8 type,
1696 u8 pin_len, bool *persistent);
1697 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1698 u8 addr_type, u8 type, u8 authenticated,
1699 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1700 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1701 u8 addr_type, u8 role);
1702 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1703 void hci_smp_ltks_clear(struct hci_dev *hdev);
1704 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1705
1706 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1707 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1708 u8 addr_type);
1709 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1710 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1711 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1712 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1713 void hci_blocked_keys_clear(struct hci_dev *hdev);
1714 void hci_smp_irks_clear(struct hci_dev *hdev);
1715
1716 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1717
1718 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1719 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1720 bdaddr_t *bdaddr, u8 bdaddr_type);
1721 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1722 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1723 u8 *hash256, u8 *rand256);
1724 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1725 u8 bdaddr_type);
1726
1727 void hci_adv_instances_clear(struct hci_dev *hdev);
1728 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1729 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1730 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1731 u32 flags, u16 adv_data_len, u8 *adv_data,
1732 u16 scan_rsp_len, u8 *scan_rsp_data,
1733 u16 timeout, u16 duration, s8 tx_power,
1734 u32 min_interval, u32 max_interval,
1735 u8 mesh_handle);
1736 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1737 u32 flags, u8 data_len, u8 *data,
1738 u32 min_interval, u32 max_interval);
1739 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1740 u16 adv_data_len, u8 *adv_data,
1741 u16 scan_rsp_len, u8 *scan_rsp_data);
1742 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1743 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1744 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1745 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1746
1747 void hci_adv_monitors_clear(struct hci_dev *hdev);
1748 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1749 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1750 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1751 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1752 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1753 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1754
1755 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1756
1757 void hci_init_sysfs(struct hci_dev *hdev);
1758 void hci_conn_init_sysfs(struct hci_conn *conn);
1759 void hci_conn_add_sysfs(struct hci_conn *conn);
1760 void hci_conn_del_sysfs(struct hci_conn *conn);
1761
1762 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1763 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1764
1765 /* ----- LMP capabilities ----- */
1766 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1767 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1768 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1769 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1770 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1771 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1772 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1773 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1774 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1775 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1776 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1777 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1778 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1779 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1780 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1781 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1782 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1783 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1784 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1785 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1786 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1787 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1788 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1789 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1790
1791 /* ----- Extended LMP capabilities ----- */
1792 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1793 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1794 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1795 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1796 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1797 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1798
1799 /* ----- Host capabilities ----- */
1800 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1801 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1802 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1803 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1804
1805 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1806 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1807 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1808 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1809 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1810 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1811 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1812 !adv->rpa_expired)
1813
1814 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1815 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1816
1817 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1818
1819 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1820 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1821
1822 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1823 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1824 &(dev)->quirks))
1825
1826 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1827 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1828
1829 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1830
1831 /* Use LL Privacy based address resolution if supported */
1832 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1833 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1834
1835 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1836 (hdev->commands[39] & 0x04))
1837
1838 #define read_key_size_capable(dev) \
1839 ((dev)->commands[20] & 0x10 && \
1840 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1841
1842 /* Use enhanced synchronous connection if command is supported and its quirk
1843 * has not been set.
1844 */
1845 #define enhanced_sync_conn_capable(dev) \
1846 (((dev)->commands[29] & 0x08) && \
1847 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1848
1849 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1850 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1851 ((dev)->commands[37] & 0x40) && \
1852 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1853
1854 /* Use ext create connection if command is supported */
1855 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1856
1857 /* Extended advertising support */
1858 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1859
1860 /* Maximum advertising length */
1861 #define max_adv_len(dev) \
1862 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1863
1864 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1865 *
1866 * C24: Mandatory if the LE Controller supports Connection State and either
1867 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1868 */
1869 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1870 ext_adv_capable(dev))
1871
1872 /* Periodic advertising support */
1873 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1874
1875 /* CIS Master/Slave and BIS support */
1876 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1877 #define cis_capable(dev) \
1878 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1879 #define cis_central_capable(dev) \
1880 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1881 #define cis_peripheral_capable(dev) \
1882 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1883 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1884 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1885
1886 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1887 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1888
1889 /* ----- HCI protocols ----- */
1890 #define HCI_PROTO_DEFER 0x01
1891
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1892 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1893 __u8 type, __u8 *flags)
1894 {
1895 switch (type) {
1896 case ACL_LINK:
1897 return l2cap_connect_ind(hdev, bdaddr);
1898
1899 case SCO_LINK:
1900 case ESCO_LINK:
1901 return sco_connect_ind(hdev, bdaddr, flags);
1902
1903 case ISO_LINK:
1904 return iso_connect_ind(hdev, bdaddr, flags);
1905
1906 default:
1907 BT_ERR("unknown link type %d", type);
1908 return -EINVAL;
1909 }
1910 }
1911
hci_proto_disconn_ind(struct hci_conn * conn)1912 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1913 {
1914 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1915 return HCI_ERROR_REMOTE_USER_TERM;
1916
1917 return l2cap_disconn_ind(conn);
1918 }
1919
1920 /* ----- HCI callbacks ----- */
1921 struct hci_cb {
1922 struct list_head list;
1923
1924 char *name;
1925
1926 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1927 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1928 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1929 __u8 encrypt);
1930 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1931 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1932 };
1933
hci_connect_cfm(struct hci_conn * conn,__u8 status)1934 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1935 {
1936 struct hci_cb *cb;
1937
1938 mutex_lock(&hci_cb_list_lock);
1939 list_for_each_entry(cb, &hci_cb_list, list) {
1940 if (cb->connect_cfm)
1941 cb->connect_cfm(conn, status);
1942 }
1943 mutex_unlock(&hci_cb_list_lock);
1944
1945 if (conn->connect_cfm_cb)
1946 conn->connect_cfm_cb(conn, status);
1947 }
1948
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1949 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1950 {
1951 struct hci_cb *cb;
1952
1953 mutex_lock(&hci_cb_list_lock);
1954 list_for_each_entry(cb, &hci_cb_list, list) {
1955 if (cb->disconn_cfm)
1956 cb->disconn_cfm(conn, reason);
1957 }
1958 mutex_unlock(&hci_cb_list_lock);
1959
1960 if (conn->disconn_cfm_cb)
1961 conn->disconn_cfm_cb(conn, reason);
1962 }
1963
hci_auth_cfm(struct hci_conn * conn,__u8 status)1964 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1965 {
1966 struct hci_cb *cb;
1967 __u8 encrypt;
1968
1969 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1970 return;
1971
1972 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1973
1974 mutex_lock(&hci_cb_list_lock);
1975 list_for_each_entry(cb, &hci_cb_list, list) {
1976 if (cb->security_cfm)
1977 cb->security_cfm(conn, status, encrypt);
1978 }
1979 mutex_unlock(&hci_cb_list_lock);
1980
1981 if (conn->security_cfm_cb)
1982 conn->security_cfm_cb(conn, status);
1983 }
1984
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)1985 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1986 {
1987 struct hci_cb *cb;
1988 __u8 encrypt;
1989
1990 if (conn->state == BT_CONFIG) {
1991 if (!status)
1992 conn->state = BT_CONNECTED;
1993
1994 hci_connect_cfm(conn, status);
1995 hci_conn_drop(conn);
1996 return;
1997 }
1998
1999 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2000 encrypt = 0x00;
2001 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2002 encrypt = 0x02;
2003 else
2004 encrypt = 0x01;
2005
2006 if (!status) {
2007 if (conn->sec_level == BT_SECURITY_SDP)
2008 conn->sec_level = BT_SECURITY_LOW;
2009
2010 if (conn->pending_sec_level > conn->sec_level)
2011 conn->sec_level = conn->pending_sec_level;
2012 }
2013
2014 mutex_lock(&hci_cb_list_lock);
2015 list_for_each_entry(cb, &hci_cb_list, list) {
2016 if (cb->security_cfm)
2017 cb->security_cfm(conn, status, encrypt);
2018 }
2019 mutex_unlock(&hci_cb_list_lock);
2020
2021 if (conn->security_cfm_cb)
2022 conn->security_cfm_cb(conn, status);
2023 }
2024
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2025 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2026 {
2027 struct hci_cb *cb;
2028
2029 mutex_lock(&hci_cb_list_lock);
2030 list_for_each_entry(cb, &hci_cb_list, list) {
2031 if (cb->key_change_cfm)
2032 cb->key_change_cfm(conn, status);
2033 }
2034 mutex_unlock(&hci_cb_list_lock);
2035 }
2036
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2037 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2038 __u8 role)
2039 {
2040 struct hci_cb *cb;
2041
2042 mutex_lock(&hci_cb_list_lock);
2043 list_for_each_entry(cb, &hci_cb_list, list) {
2044 if (cb->role_switch_cfm)
2045 cb->role_switch_cfm(conn, status, role);
2046 }
2047 mutex_unlock(&hci_cb_list_lock);
2048 }
2049
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2050 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2051 {
2052 if (addr_type != ADDR_LE_DEV_RANDOM)
2053 return false;
2054
2055 if ((bdaddr->b[5] & 0xc0) == 0x40)
2056 return true;
2057
2058 return false;
2059 }
2060
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2061 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2062 {
2063 if (addr_type == ADDR_LE_DEV_PUBLIC)
2064 return true;
2065
2066 /* Check for Random Static address type */
2067 if ((addr->b[5] & 0xc0) == 0xc0)
2068 return true;
2069
2070 return false;
2071 }
2072
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2073 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2074 bdaddr_t *bdaddr, u8 addr_type)
2075 {
2076 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2077 return NULL;
2078
2079 return hci_find_irk_by_rpa(hdev, bdaddr);
2080 }
2081
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2082 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2083 u16 to_multiplier)
2084 {
2085 u16 max_latency;
2086
2087 if (min > max) {
2088 BT_WARN("min %d > max %d", min, max);
2089 return -EINVAL;
2090 }
2091
2092 if (min < 6) {
2093 BT_WARN("min %d < 6", min);
2094 return -EINVAL;
2095 }
2096
2097 if (max > 3200) {
2098 BT_WARN("max %d > 3200", max);
2099 return -EINVAL;
2100 }
2101
2102 if (to_multiplier < 10) {
2103 BT_WARN("to_multiplier %d < 10", to_multiplier);
2104 return -EINVAL;
2105 }
2106
2107 if (to_multiplier > 3200) {
2108 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2109 return -EINVAL;
2110 }
2111
2112 if (max >= to_multiplier * 8) {
2113 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2114 return -EINVAL;
2115 }
2116
2117 max_latency = (to_multiplier * 4 / max) - 1;
2118 if (latency > 499) {
2119 BT_WARN("latency %d > 499", latency);
2120 return -EINVAL;
2121 }
2122
2123 if (latency > max_latency) {
2124 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2125 return -EINVAL;
2126 }
2127
2128 return 0;
2129 }
2130
2131 int hci_register_cb(struct hci_cb *hcb);
2132 int hci_unregister_cb(struct hci_cb *hcb);
2133
2134 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2135 const void *param);
2136
2137 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2138 const void *param);
2139 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2140 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2141 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2142
2143 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2144 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2145
2146 u32 hci_conn_get_phy(struct hci_conn *conn);
2147
2148 /* ----- HCI Sockets ----- */
2149 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2150 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2151 int flag, struct sock *skip_sk);
2152 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2153 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2154 void *data, u16 data_len, ktime_t tstamp,
2155 int flag, struct sock *skip_sk);
2156
2157 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2158
2159 #define HCI_MGMT_VAR_LEN BIT(0)
2160 #define HCI_MGMT_NO_HDEV BIT(1)
2161 #define HCI_MGMT_UNTRUSTED BIT(2)
2162 #define HCI_MGMT_UNCONFIGURED BIT(3)
2163 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2164
2165 struct hci_mgmt_handler {
2166 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2167 u16 data_len);
2168 size_t data_len;
2169 unsigned long flags;
2170 };
2171
2172 struct hci_mgmt_chan {
2173 struct list_head list;
2174 unsigned short channel;
2175 size_t handler_count;
2176 const struct hci_mgmt_handler *handlers;
2177 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2178 };
2179
2180 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2181 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2182
2183 /* Management interface */
2184 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2185 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2186 BIT(BDADDR_LE_RANDOM))
2187 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2188 BIT(BDADDR_LE_PUBLIC) | \
2189 BIT(BDADDR_LE_RANDOM))
2190
2191 /* These LE scan and inquiry parameters were chosen according to LE General
2192 * Discovery Procedure specification.
2193 */
2194 #define DISCOV_LE_SCAN_WIN 0x12
2195 #define DISCOV_LE_SCAN_INT 0x12
2196 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2197 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2198 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2199 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2200 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2201 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2202 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2203 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2204 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2205 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2206 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2207 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2208
2209 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2210
2211 void mgmt_fill_version_info(void *ver);
2212 int mgmt_new_settings(struct hci_dev *hdev);
2213 void mgmt_index_added(struct hci_dev *hdev);
2214 void mgmt_index_removed(struct hci_dev *hdev);
2215 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2216 void mgmt_power_on(struct hci_dev *hdev, int err);
2217 void __mgmt_power_off(struct hci_dev *hdev);
2218 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2219 bool persistent);
2220 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2221 u8 *name, u8 name_len);
2222 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2223 u8 link_type, u8 addr_type, u8 reason,
2224 bool mgmt_connected);
2225 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2226 u8 link_type, u8 addr_type, u8 status);
2227 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2228 u8 addr_type, u8 status);
2229 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2230 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2231 u8 status);
2232 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2233 u8 status);
2234 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2235 u8 link_type, u8 addr_type, u32 value,
2236 u8 confirm_hint);
2237 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2238 u8 link_type, u8 addr_type, u8 status);
2239 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2240 u8 link_type, u8 addr_type, u8 status);
2241 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2242 u8 link_type, u8 addr_type);
2243 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2244 u8 link_type, u8 addr_type, u8 status);
2245 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2246 u8 link_type, u8 addr_type, u8 status);
2247 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2248 u8 link_type, u8 addr_type, u32 passkey,
2249 u8 entered);
2250 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2251 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2252 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2253 u8 status);
2254 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2255 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2256 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2257 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2258 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2259 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2260 u64 instant);
2261 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2262 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2263 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2264 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2265 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2266 u8 addr_type);
2267 bool mgmt_powering_down(struct hci_dev *hdev);
2268 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2269 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2270 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2271 bool persistent);
2272 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2273 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2274 u16 max_interval, u16 latency, u16 timeout);
2275 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2276 bool mgmt_get_connectable(struct hci_dev *hdev);
2277 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2278 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2279 u8 instance);
2280 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2281 u8 instance);
2282 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2283 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2284 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2285 bdaddr_t *bdaddr, u8 addr_type);
2286
2287 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2288 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2289 u16 to_multiplier);
2290 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2291 __u8 ltk[16], __u8 key_size);
2292
2293 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2294 u8 *bdaddr_type);
2295
2296 #define SCO_AIRMODE_MASK 0x0003
2297 #define SCO_AIRMODE_CVSD 0x0000
2298 #define SCO_AIRMODE_TRANSP 0x0003
2299
2300 #define LOCAL_CODEC_ACL_MASK BIT(0)
2301 #define LOCAL_CODEC_SCO_MASK BIT(1)
2302
2303 #define TRANSPORT_TYPE_MAX 0x04
2304
2305 #endif /* __HCI_CORE_H */
2306