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
804 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
805 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
806 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
807 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
808 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
809 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
810 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
811
812 #define hci_dev_clear_volatile_flags(hdev) \
813 do { \
814 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
815 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
816 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
817 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
818 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
819 } while (0)
820
821 #define hci_dev_le_state_simultaneous(hdev) \
822 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
823 (hdev->le_states[4] & 0x08) && /* Central */ \
824 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
825 (hdev->le_states[3] & 0x10)) /* Simultaneous */
826
827 /* ----- HCI interface to upper protocols ----- */
828 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
829 int l2cap_disconn_ind(struct hci_conn *hcon);
830 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
831
832 #if IS_ENABLED(CONFIG_BT_BREDR)
833 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
834 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
835 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)836 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
837 __u8 *flags)
838 {
839 return 0;
840 }
841
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)842 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
843 {
844 }
845 #endif
846
847 #if IS_ENABLED(CONFIG_BT_LE)
848 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
849 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
850 #else
iso_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)851 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
852 __u8 *flags)
853 {
854 return 0;
855 }
iso_recv(struct hci_conn * hcon,struct sk_buff * skb,u16 flags)856 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
857 u16 flags)
858 {
859 }
860 #endif
861
862 /* ----- Inquiry cache ----- */
863 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
864 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
865
discovery_init(struct hci_dev * hdev)866 static inline void discovery_init(struct hci_dev *hdev)
867 {
868 hdev->discovery.state = DISCOVERY_STOPPED;
869 INIT_LIST_HEAD(&hdev->discovery.all);
870 INIT_LIST_HEAD(&hdev->discovery.unknown);
871 INIT_LIST_HEAD(&hdev->discovery.resolve);
872 hdev->discovery.report_invalid_rssi = true;
873 hdev->discovery.rssi = HCI_RSSI_INVALID;
874 }
875
hci_discovery_filter_clear(struct hci_dev * hdev)876 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
877 {
878 hdev->discovery.result_filtering = false;
879 hdev->discovery.report_invalid_rssi = true;
880 hdev->discovery.rssi = HCI_RSSI_INVALID;
881 hdev->discovery.uuid_count = 0;
882 kfree(hdev->discovery.uuids);
883 hdev->discovery.uuids = NULL;
884 hdev->discovery.scan_start = 0;
885 hdev->discovery.scan_duration = 0;
886 }
887
888 bool hci_discovery_active(struct hci_dev *hdev);
889
890 void hci_discovery_set_state(struct hci_dev *hdev, int state);
891
inquiry_cache_empty(struct hci_dev * hdev)892 static inline int inquiry_cache_empty(struct hci_dev *hdev)
893 {
894 return list_empty(&hdev->discovery.all);
895 }
896
inquiry_cache_age(struct hci_dev * hdev)897 static inline long inquiry_cache_age(struct hci_dev *hdev)
898 {
899 struct discovery_state *c = &hdev->discovery;
900 return jiffies - c->timestamp;
901 }
902
inquiry_entry_age(struct inquiry_entry * e)903 static inline long inquiry_entry_age(struct inquiry_entry *e)
904 {
905 return jiffies - e->timestamp;
906 }
907
908 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
909 bdaddr_t *bdaddr);
910 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
911 bdaddr_t *bdaddr);
912 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
913 bdaddr_t *bdaddr,
914 int state);
915 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
916 struct inquiry_entry *ie);
917 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
918 bool name_known);
919 void hci_inquiry_cache_flush(struct hci_dev *hdev);
920
921 /* ----- HCI Connections ----- */
922 enum {
923 HCI_CONN_AUTH_PEND,
924 HCI_CONN_ENCRYPT_PEND,
925 HCI_CONN_RSWITCH_PEND,
926 HCI_CONN_MODE_CHANGE_PEND,
927 HCI_CONN_SCO_SETUP_PEND,
928 HCI_CONN_MGMT_CONNECTED,
929 HCI_CONN_SSP_ENABLED,
930 HCI_CONN_SC_ENABLED,
931 HCI_CONN_AES_CCM,
932 HCI_CONN_POWER_SAVE,
933 HCI_CONN_FLUSH_KEY,
934 HCI_CONN_ENCRYPT,
935 HCI_CONN_AUTH,
936 HCI_CONN_SECURE,
937 HCI_CONN_FIPS,
938 HCI_CONN_STK_ENCRYPT,
939 HCI_CONN_AUTH_INITIATOR,
940 HCI_CONN_DROP,
941 HCI_CONN_CANCEL,
942 HCI_CONN_PARAM_REMOVAL_PEND,
943 HCI_CONN_NEW_LINK_KEY,
944 HCI_CONN_SCANNING,
945 HCI_CONN_AUTH_FAILURE,
946 HCI_CONN_PER_ADV,
947 HCI_CONN_BIG_CREATED,
948 HCI_CONN_CREATE_CIS,
949 HCI_CONN_BIG_SYNC,
950 HCI_CONN_BIG_SYNC_FAILED,
951 HCI_CONN_PA_SYNC,
952 HCI_CONN_PA_SYNC_FAILED,
953 };
954
hci_conn_ssp_enabled(struct hci_conn * conn)955 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
956 {
957 struct hci_dev *hdev = conn->hdev;
958 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
959 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
960 }
961
hci_conn_sc_enabled(struct hci_conn * conn)962 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
963 {
964 struct hci_dev *hdev = conn->hdev;
965 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
966 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
967 }
968
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)969 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
970 {
971 struct hci_conn_hash *h = &hdev->conn_hash;
972 list_add_tail_rcu(&c->list, &h->list);
973 switch (c->type) {
974 case ACL_LINK:
975 h->acl_num++;
976 break;
977 case LE_LINK:
978 h->le_num++;
979 if (c->role == HCI_ROLE_SLAVE)
980 h->le_num_peripheral++;
981 break;
982 case SCO_LINK:
983 case ESCO_LINK:
984 h->sco_num++;
985 break;
986 case ISO_LINK:
987 h->iso_num++;
988 break;
989 }
990 }
991
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)992 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
993 {
994 struct hci_conn_hash *h = &hdev->conn_hash;
995
996 list_del_rcu(&c->list);
997 synchronize_rcu();
998
999 switch (c->type) {
1000 case ACL_LINK:
1001 h->acl_num--;
1002 break;
1003 case LE_LINK:
1004 h->le_num--;
1005 if (c->role == HCI_ROLE_SLAVE)
1006 h->le_num_peripheral--;
1007 break;
1008 case SCO_LINK:
1009 case ESCO_LINK:
1010 h->sco_num--;
1011 break;
1012 case ISO_LINK:
1013 h->iso_num--;
1014 break;
1015 }
1016 }
1017
hci_conn_num(struct hci_dev * hdev,__u8 type)1018 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1019 {
1020 struct hci_conn_hash *h = &hdev->conn_hash;
1021 switch (type) {
1022 case ACL_LINK:
1023 return h->acl_num;
1024 case LE_LINK:
1025 return h->le_num;
1026 case SCO_LINK:
1027 case ESCO_LINK:
1028 return h->sco_num;
1029 case ISO_LINK:
1030 return h->iso_num;
1031 default:
1032 return 0;
1033 }
1034 }
1035
hci_conn_count(struct hci_dev * hdev)1036 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1037 {
1038 struct hci_conn_hash *c = &hdev->conn_hash;
1039
1040 return c->acl_num + c->sco_num + c->le_num + c->iso_num;
1041 }
1042
hci_conn_valid(struct hci_dev * hdev,struct hci_conn * conn)1043 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn)
1044 {
1045 struct hci_conn_hash *h = &hdev->conn_hash;
1046 struct hci_conn *c;
1047
1048 rcu_read_lock();
1049
1050 list_for_each_entry_rcu(c, &h->list, list) {
1051 if (c == conn) {
1052 rcu_read_unlock();
1053 return true;
1054 }
1055 }
1056 rcu_read_unlock();
1057
1058 return false;
1059 }
1060
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)1061 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1062 {
1063 struct hci_conn_hash *h = &hdev->conn_hash;
1064 struct hci_conn *c;
1065 __u8 type = INVALID_LINK;
1066
1067 rcu_read_lock();
1068
1069 list_for_each_entry_rcu(c, &h->list, list) {
1070 if (c->handle == handle) {
1071 type = c->type;
1072 break;
1073 }
1074 }
1075
1076 rcu_read_unlock();
1077
1078 return type;
1079 }
1080
hci_conn_hash_lookup_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 bis)1081 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1082 bdaddr_t *ba, __u8 bis)
1083 {
1084 struct hci_conn_hash *h = &hdev->conn_hash;
1085 struct hci_conn *c;
1086
1087 rcu_read_lock();
1088
1089 list_for_each_entry_rcu(c, &h->list, list) {
1090 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1091 continue;
1092
1093 if (c->iso_qos.bcast.bis == bis) {
1094 rcu_read_unlock();
1095 return c;
1096 }
1097 }
1098 rcu_read_unlock();
1099
1100 return NULL;
1101 }
1102
1103 static inline struct hci_conn *
hci_conn_hash_lookup_per_adv_bis(struct hci_dev * hdev,bdaddr_t * ba,__u8 big,__u8 bis)1104 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1105 bdaddr_t *ba,
1106 __u8 big, __u8 bis)
1107 {
1108 struct hci_conn_hash *h = &hdev->conn_hash;
1109 struct hci_conn *c;
1110
1111 rcu_read_lock();
1112
1113 list_for_each_entry_rcu(c, &h->list, list) {
1114 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1115 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1116 continue;
1117
1118 if (c->iso_qos.bcast.big == big &&
1119 c->iso_qos.bcast.bis == bis) {
1120 rcu_read_unlock();
1121 return c;
1122 }
1123 }
1124 rcu_read_unlock();
1125
1126 return NULL;
1127 }
1128
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)1129 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1130 __u16 handle)
1131 {
1132 struct hci_conn_hash *h = &hdev->conn_hash;
1133 struct hci_conn *c;
1134
1135 rcu_read_lock();
1136
1137 list_for_each_entry_rcu(c, &h->list, list) {
1138 if (c->handle == handle) {
1139 rcu_read_unlock();
1140 return c;
1141 }
1142 }
1143 rcu_read_unlock();
1144
1145 return NULL;
1146 }
1147
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)1148 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1149 __u8 type, bdaddr_t *ba)
1150 {
1151 struct hci_conn_hash *h = &hdev->conn_hash;
1152 struct hci_conn *c;
1153
1154 rcu_read_lock();
1155
1156 list_for_each_entry_rcu(c, &h->list, list) {
1157 if (c->type == type && !bacmp(&c->dst, ba)) {
1158 rcu_read_unlock();
1159 return c;
1160 }
1161 }
1162
1163 rcu_read_unlock();
1164
1165 return NULL;
1166 }
1167
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)1168 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1169 bdaddr_t *ba,
1170 __u8 ba_type)
1171 {
1172 struct hci_conn_hash *h = &hdev->conn_hash;
1173 struct hci_conn *c;
1174
1175 rcu_read_lock();
1176
1177 list_for_each_entry_rcu(c, &h->list, list) {
1178 if (c->type != LE_LINK)
1179 continue;
1180
1181 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1182 rcu_read_unlock();
1183 return c;
1184 }
1185 }
1186
1187 rcu_read_unlock();
1188
1189 return NULL;
1190 }
1191
hci_conn_hash_lookup_cis(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type,__u8 cig,__u8 id)1192 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1193 bdaddr_t *ba,
1194 __u8 ba_type,
1195 __u8 cig,
1196 __u8 id)
1197 {
1198 struct hci_conn_hash *h = &hdev->conn_hash;
1199 struct hci_conn *c;
1200
1201 rcu_read_lock();
1202
1203 list_for_each_entry_rcu(c, &h->list, list) {
1204 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1205 continue;
1206
1207 /* Match CIG ID if set */
1208 if (cig != c->iso_qos.ucast.cig)
1209 continue;
1210
1211 /* Match CIS ID if set */
1212 if (id != c->iso_qos.ucast.cis)
1213 continue;
1214
1215 /* Match destination address if set */
1216 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1217 rcu_read_unlock();
1218 return c;
1219 }
1220 }
1221
1222 rcu_read_unlock();
1223
1224 return NULL;
1225 }
1226
hci_conn_hash_lookup_cig(struct hci_dev * hdev,__u8 handle)1227 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1228 __u8 handle)
1229 {
1230 struct hci_conn_hash *h = &hdev->conn_hash;
1231 struct hci_conn *c;
1232
1233 rcu_read_lock();
1234
1235 list_for_each_entry_rcu(c, &h->list, list) {
1236 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1237 continue;
1238
1239 if (handle == c->iso_qos.ucast.cig) {
1240 rcu_read_unlock();
1241 return c;
1242 }
1243 }
1244
1245 rcu_read_unlock();
1246
1247 return NULL;
1248 }
1249
hci_conn_hash_lookup_big(struct hci_dev * hdev,__u8 handle)1250 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1251 __u8 handle)
1252 {
1253 struct hci_conn_hash *h = &hdev->conn_hash;
1254 struct hci_conn *c;
1255
1256 rcu_read_lock();
1257
1258 list_for_each_entry_rcu(c, &h->list, list) {
1259 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1260 continue;
1261
1262 if (handle == c->iso_qos.bcast.big) {
1263 rcu_read_unlock();
1264 return c;
1265 }
1266 }
1267
1268 rcu_read_unlock();
1269
1270 return NULL;
1271 }
1272
hci_conn_hash_lookup_big_any_dst(struct hci_dev * hdev,__u8 handle)1273 static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(struct hci_dev *hdev,
1274 __u8 handle)
1275 {
1276 struct hci_conn_hash *h = &hdev->conn_hash;
1277 struct hci_conn *c;
1278
1279 rcu_read_lock();
1280
1281 list_for_each_entry_rcu(c, &h->list, list) {
1282 if (c->type != ISO_LINK)
1283 continue;
1284
1285 if (handle != BT_ISO_QOS_BIG_UNSET && handle == c->iso_qos.bcast.big) {
1286 rcu_read_unlock();
1287 return c;
1288 }
1289 }
1290
1291 rcu_read_unlock();
1292
1293 return NULL;
1294 }
1295
1296 static inline struct hci_conn *
hci_conn_hash_lookup_big_state(struct hci_dev * hdev,__u8 handle,__u16 state)1297 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
1298 {
1299 struct hci_conn_hash *h = &hdev->conn_hash;
1300 struct hci_conn *c;
1301
1302 rcu_read_lock();
1303
1304 list_for_each_entry_rcu(c, &h->list, list) {
1305 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK ||
1306 c->state != state)
1307 continue;
1308
1309 if (handle == c->iso_qos.bcast.big) {
1310 rcu_read_unlock();
1311 return c;
1312 }
1313 }
1314
1315 rcu_read_unlock();
1316
1317 return NULL;
1318 }
1319
1320 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev * hdev,__u8 big)1321 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
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->iso_qos.bcast.big == big) {
1334 rcu_read_unlock();
1335 return c;
1336 }
1337 }
1338 rcu_read_unlock();
1339
1340 return NULL;
1341 }
1342
1343 static inline struct hci_conn *
hci_conn_hash_lookup_pa_sync_handle(struct hci_dev * hdev,__u16 sync_handle)1344 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
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 != ISO_LINK ||
1353 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1354 continue;
1355
1356 if (c->sync_handle == sync_handle) {
1357 rcu_read_unlock();
1358 return c;
1359 }
1360 }
1361 rcu_read_unlock();
1362
1363 return NULL;
1364 }
1365
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1366 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1367 __u8 type, __u16 state)
1368 {
1369 struct hci_conn_hash *h = &hdev->conn_hash;
1370 struct hci_conn *c;
1371
1372 rcu_read_lock();
1373
1374 list_for_each_entry_rcu(c, &h->list, list) {
1375 if (c->type == type && c->state == state) {
1376 rcu_read_unlock();
1377 return c;
1378 }
1379 }
1380
1381 rcu_read_unlock();
1382
1383 return NULL;
1384 }
1385
1386 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)1387 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1388 hci_conn_func_t func, __u8 type,
1389 __u16 state, void *data)
1390 {
1391 struct hci_conn_hash *h = &hdev->conn_hash;
1392 struct hci_conn *c;
1393
1394 if (!func)
1395 return;
1396
1397 rcu_read_lock();
1398
1399 list_for_each_entry_rcu(c, &h->list, list) {
1400 if (c->type == type && c->state == state)
1401 func(c, data);
1402 }
1403
1404 rcu_read_unlock();
1405 }
1406
hci_lookup_le_connect(struct hci_dev * hdev)1407 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1408 {
1409 struct hci_conn_hash *h = &hdev->conn_hash;
1410 struct hci_conn *c;
1411
1412 rcu_read_lock();
1413
1414 list_for_each_entry_rcu(c, &h->list, list) {
1415 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1416 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1417 rcu_read_unlock();
1418 return c;
1419 }
1420 }
1421
1422 rcu_read_unlock();
1423
1424 return NULL;
1425 }
1426
1427 /* Returns true if an le connection is in the scanning state */
hci_is_le_conn_scanning(struct hci_dev * hdev)1428 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1429 {
1430 struct hci_conn_hash *h = &hdev->conn_hash;
1431 struct hci_conn *c;
1432
1433 rcu_read_lock();
1434
1435 list_for_each_entry_rcu(c, &h->list, list) {
1436 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1437 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1438 rcu_read_unlock();
1439 return true;
1440 }
1441 }
1442
1443 rcu_read_unlock();
1444
1445 return false;
1446 }
1447
1448 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1449 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1450 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1451 bool hci_iso_setup_path(struct hci_conn *conn);
1452 int hci_le_create_cis_pending(struct hci_dev *hdev);
1453 int hci_conn_check_create_cis(struct hci_conn *conn);
1454
1455 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1456 u8 role, u16 handle);
1457 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1458 bdaddr_t *dst, u8 role);
1459 void hci_conn_del(struct hci_conn *conn);
1460 void hci_conn_hash_flush(struct hci_dev *hdev);
1461
1462 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1463 void hci_chan_del(struct hci_chan *chan);
1464 void hci_chan_list_flush(struct hci_conn *conn);
1465 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1466
1467 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1468 u8 dst_type, u8 sec_level,
1469 u16 conn_timeout,
1470 enum conn_reasons conn_reason);
1471 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1472 u8 dst_type, bool dst_resolved, u8 sec_level,
1473 u16 conn_timeout, u8 role);
1474 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1475 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1476 u8 sec_level, u8 auth_type,
1477 enum conn_reasons conn_reason);
1478 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1479 __u16 setting, struct bt_codec *codec);
1480 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1481 __u8 dst_type, struct bt_iso_qos *qos);
1482 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1483 struct bt_iso_qos *qos,
1484 __u8 base_len, __u8 *base);
1485 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1486 __u8 dst_type, struct bt_iso_qos *qos);
1487 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1488 __u8 dst_type, struct bt_iso_qos *qos,
1489 __u8 data_len, __u8 *data);
1490 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1491 __u8 sid, struct bt_iso_qos *qos);
1492 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1493 struct bt_iso_qos *qos,
1494 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1495 int hci_conn_check_link_mode(struct hci_conn *conn);
1496 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1497 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1498 bool initiator);
1499 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1500
1501 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1502
1503 void hci_conn_failed(struct hci_conn *conn, u8 status);
1504 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1505
1506 /*
1507 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1508 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1509 * working or anything else. They just guarantee that the object is available
1510 * and can be dereferenced. So you can use its locks, local variables and any
1511 * other constant data.
1512 * Before accessing runtime data, you _must_ lock the object and then check that
1513 * it is still running. As soon as you release the locks, the connection might
1514 * get dropped, though.
1515 *
1516 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1517 * how long the underlying connection is held. So every channel that runs on the
1518 * hci_conn object calls this to prevent the connection from disappearing. As
1519 * long as you hold a device, you must also guarantee that you have a valid
1520 * reference to the device via hci_conn_get() (or the initial reference from
1521 * hci_conn_add()).
1522 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1523 * break because nobody cares for that. But this means, we cannot use
1524 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1525 */
1526
hci_conn_get(struct hci_conn * conn)1527 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1528 {
1529 get_device(&conn->dev);
1530 return conn;
1531 }
1532
hci_conn_put(struct hci_conn * conn)1533 static inline void hci_conn_put(struct hci_conn *conn)
1534 {
1535 put_device(&conn->dev);
1536 }
1537
hci_conn_hold(struct hci_conn * conn)1538 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1539 {
1540 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1541
1542 atomic_inc(&conn->refcnt);
1543 cancel_delayed_work(&conn->disc_work);
1544
1545 return conn;
1546 }
1547
hci_conn_drop(struct hci_conn * conn)1548 static inline void hci_conn_drop(struct hci_conn *conn)
1549 {
1550 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1551
1552 if (atomic_dec_and_test(&conn->refcnt)) {
1553 unsigned long timeo;
1554
1555 switch (conn->type) {
1556 case ACL_LINK:
1557 case LE_LINK:
1558 cancel_delayed_work(&conn->idle_work);
1559 if (conn->state == BT_CONNECTED) {
1560 timeo = conn->disc_timeout;
1561 if (!conn->out)
1562 timeo *= 2;
1563 } else {
1564 timeo = 0;
1565 }
1566 break;
1567
1568 default:
1569 timeo = 0;
1570 break;
1571 }
1572
1573 cancel_delayed_work(&conn->disc_work);
1574 queue_delayed_work(conn->hdev->workqueue,
1575 &conn->disc_work, timeo);
1576 }
1577 }
1578
1579 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1580 static inline void hci_dev_put(struct hci_dev *d)
1581 {
1582 BT_DBG("%s orig refcnt %d", d->name,
1583 kref_read(&d->dev.kobj.kref));
1584
1585 put_device(&d->dev);
1586 }
1587
hci_dev_hold(struct hci_dev * d)1588 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1589 {
1590 BT_DBG("%s orig refcnt %d", d->name,
1591 kref_read(&d->dev.kobj.kref));
1592
1593 get_device(&d->dev);
1594 return d;
1595 }
1596
1597 #define hci_dev_lock(d) mutex_lock(&d->lock)
1598 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1599
1600 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1601 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1602
hci_get_drvdata(struct hci_dev * hdev)1603 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1604 {
1605 return dev_get_drvdata(&hdev->dev);
1606 }
1607
hci_set_drvdata(struct hci_dev * hdev,void * data)1608 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1609 {
1610 dev_set_drvdata(&hdev->dev, data);
1611 }
1612
hci_get_priv(struct hci_dev * hdev)1613 static inline void *hci_get_priv(struct hci_dev *hdev)
1614 {
1615 return (char *)hdev + sizeof(*hdev);
1616 }
1617
1618 struct hci_dev *hci_dev_get(int index);
1619 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1620
1621 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1622
hci_alloc_dev(void)1623 static inline struct hci_dev *hci_alloc_dev(void)
1624 {
1625 return hci_alloc_dev_priv(0);
1626 }
1627
1628 void hci_free_dev(struct hci_dev *hdev);
1629 int hci_register_dev(struct hci_dev *hdev);
1630 void hci_unregister_dev(struct hci_dev *hdev);
1631 void hci_release_dev(struct hci_dev *hdev);
1632 int hci_register_suspend_notifier(struct hci_dev *hdev);
1633 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1634 int hci_suspend_dev(struct hci_dev *hdev);
1635 int hci_resume_dev(struct hci_dev *hdev);
1636 int hci_reset_dev(struct hci_dev *hdev);
1637 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1638 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1639 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1640 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1641
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1642 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1643 {
1644 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1645 hdev->msft_opcode = opcode;
1646 #endif
1647 }
1648
hci_set_aosp_capable(struct hci_dev * hdev)1649 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1650 {
1651 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1652 hdev->aosp_capable = true;
1653 #endif
1654 }
1655
hci_devcd_setup(struct hci_dev * hdev)1656 static inline void hci_devcd_setup(struct hci_dev *hdev)
1657 {
1658 #ifdef CONFIG_DEV_COREDUMP
1659 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1660 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1661 skb_queue_head_init(&hdev->dump.dump_q);
1662 #endif
1663 }
1664
1665 int hci_dev_open(__u16 dev);
1666 int hci_dev_close(__u16 dev);
1667 int hci_dev_do_close(struct hci_dev *hdev);
1668 int hci_dev_reset(__u16 dev);
1669 int hci_dev_reset_stat(__u16 dev);
1670 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1671 int hci_get_dev_list(void __user *arg);
1672 int hci_get_dev_info(void __user *arg);
1673 int hci_get_conn_list(void __user *arg);
1674 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1675 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1676 int hci_inquiry(void __user *arg);
1677
1678 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1679 bdaddr_t *bdaddr, u8 type);
1680 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1681 struct list_head *list, bdaddr_t *bdaddr,
1682 u8 type);
1683 struct bdaddr_list_with_flags *
1684 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1685 u8 type);
1686 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1687 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1688 u8 type, u8 *peer_irk, u8 *local_irk);
1689 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1690 u8 type, u32 flags);
1691 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1692 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1693 u8 type);
1694 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1695 u8 type);
1696 void hci_bdaddr_list_clear(struct list_head *list);
1697
1698 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1699 bdaddr_t *addr, u8 addr_type);
1700 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1701 bdaddr_t *addr, u8 addr_type);
1702 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1703 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1704 void hci_conn_params_free(struct hci_conn_params *param);
1705
1706 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1707 void hci_pend_le_list_add(struct hci_conn_params *param,
1708 struct list_head *list);
1709 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1710 bdaddr_t *addr,
1711 u8 addr_type);
1712
1713 void hci_uuids_clear(struct hci_dev *hdev);
1714
1715 void hci_link_keys_clear(struct hci_dev *hdev);
1716 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1717 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1718 bdaddr_t *bdaddr, u8 *val, u8 type,
1719 u8 pin_len, bool *persistent);
1720 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1721 u8 addr_type, u8 type, u8 authenticated,
1722 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1723 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1724 u8 addr_type, u8 role);
1725 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1726 void hci_smp_ltks_clear(struct hci_dev *hdev);
1727 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1728
1729 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1730 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1731 u8 addr_type);
1732 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1733 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1734 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1735 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1736 void hci_blocked_keys_clear(struct hci_dev *hdev);
1737 void hci_smp_irks_clear(struct hci_dev *hdev);
1738
1739 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1740
1741 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1742 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1743 bdaddr_t *bdaddr, u8 bdaddr_type);
1744 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1745 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1746 u8 *hash256, u8 *rand256);
1747 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1748 u8 bdaddr_type);
1749
1750 void hci_adv_instances_clear(struct hci_dev *hdev);
1751 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1752 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1753 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1754 u32 flags, u16 adv_data_len, u8 *adv_data,
1755 u16 scan_rsp_len, u8 *scan_rsp_data,
1756 u16 timeout, u16 duration, s8 tx_power,
1757 u32 min_interval, u32 max_interval,
1758 u8 mesh_handle);
1759 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1760 u32 flags, u8 data_len, u8 *data,
1761 u32 min_interval, u32 max_interval);
1762 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1763 u16 adv_data_len, u8 *adv_data,
1764 u16 scan_rsp_len, u8 *scan_rsp_data);
1765 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1766 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1767 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1768 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1769
1770 void hci_adv_monitors_clear(struct hci_dev *hdev);
1771 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1772 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1773 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1774 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1775 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1776 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1777
1778 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1779
1780 void hci_init_sysfs(struct hci_dev *hdev);
1781 void hci_conn_init_sysfs(struct hci_conn *conn);
1782 void hci_conn_add_sysfs(struct hci_conn *conn);
1783 void hci_conn_del_sysfs(struct hci_conn *conn);
1784
1785 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1786 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1787
1788 /* ----- LMP capabilities ----- */
1789 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1790 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1791 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1792 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1793 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1794 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1795 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1796 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1797 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1798 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1799 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1800 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1801 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1802 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1803 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1804 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1805 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1806 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1807 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1808 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1809 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1810 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1811 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1812 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1813
1814 /* ----- Extended LMP capabilities ----- */
1815 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1816 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1817 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1818 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1819 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1820 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1821
1822 /* ----- Host capabilities ----- */
1823 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1824 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1825 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1826 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1827
1828 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1829 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1830 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1831 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1832 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1833 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1834 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1835 !adv->rpa_expired)
1836
1837 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1838 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1839
1840 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1841
1842 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1843 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1844
1845 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1846 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1847 &(dev)->quirks))
1848
1849 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1850 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1851
1852 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1853
1854 /* Use LL Privacy based address resolution if supported */
1855 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1856 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1857
1858 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1859 (hdev->commands[39] & 0x04))
1860
1861 #define read_key_size_capable(dev) \
1862 ((dev)->commands[20] & 0x10 && \
1863 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1864
1865 /* Use enhanced synchronous connection if command is supported and its quirk
1866 * has not been set.
1867 */
1868 #define enhanced_sync_conn_capable(dev) \
1869 (((dev)->commands[29] & 0x08) && \
1870 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1871
1872 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1873 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1874 ((dev)->commands[37] & 0x40) && \
1875 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1876
1877 /* Use ext create connection if command is supported */
1878 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \
1879 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks))
1880 /* Extended advertising support */
1881 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1882
1883 /* Maximum advertising length */
1884 #define max_adv_len(dev) \
1885 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1886
1887 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1888 *
1889 * C24: Mandatory if the LE Controller supports Connection State and either
1890 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1891 */
1892 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \
1893 ext_adv_capable(dev)) && \
1894 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \
1895 &(dev)->quirks))
1896
1897 /* Periodic advertising support */
1898 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1899
1900 /* CIS Master/Slave and BIS support */
1901 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1902 #define cis_capable(dev) \
1903 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1904 #define cis_central_capable(dev) \
1905 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1906 #define cis_peripheral_capable(dev) \
1907 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1908 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1909 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1910
1911 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1912 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1913
1914 /* ----- HCI protocols ----- */
1915 #define HCI_PROTO_DEFER 0x01
1916
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1917 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1918 __u8 type, __u8 *flags)
1919 {
1920 switch (type) {
1921 case ACL_LINK:
1922 return l2cap_connect_ind(hdev, bdaddr);
1923
1924 case SCO_LINK:
1925 case ESCO_LINK:
1926 return sco_connect_ind(hdev, bdaddr, flags);
1927
1928 case ISO_LINK:
1929 return iso_connect_ind(hdev, bdaddr, flags);
1930
1931 default:
1932 BT_ERR("unknown link type %d", type);
1933 return -EINVAL;
1934 }
1935 }
1936
hci_proto_disconn_ind(struct hci_conn * conn)1937 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1938 {
1939 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1940 return HCI_ERROR_REMOTE_USER_TERM;
1941
1942 return l2cap_disconn_ind(conn);
1943 }
1944
1945 /* ----- HCI callbacks ----- */
1946 struct hci_cb {
1947 struct list_head list;
1948
1949 char *name;
1950
1951 bool (*match) (struct hci_conn *conn);
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_cb_lookup(struct hci_conn * conn,struct list_head * list)1960 static inline void hci_cb_lookup(struct hci_conn *conn, struct list_head *list)
1961 {
1962 struct hci_cb *cb, *cpy;
1963
1964 rcu_read_lock();
1965 list_for_each_entry_rcu(cb, &hci_cb_list, list) {
1966 if (cb->match && cb->match(conn)) {
1967 cpy = kmalloc(sizeof(*cpy), GFP_ATOMIC);
1968 if (!cpy)
1969 break;
1970
1971 *cpy = *cb;
1972 INIT_LIST_HEAD(&cpy->list);
1973 list_add_rcu(&cpy->list, list);
1974 }
1975 }
1976 rcu_read_unlock();
1977 }
1978
hci_connect_cfm(struct hci_conn * conn,__u8 status)1979 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1980 {
1981 struct list_head list;
1982 struct hci_cb *cb, *tmp;
1983
1984 INIT_LIST_HEAD(&list);
1985 hci_cb_lookup(conn, &list);
1986
1987 list_for_each_entry_safe(cb, tmp, &list, list) {
1988 if (cb->connect_cfm)
1989 cb->connect_cfm(conn, status);
1990 kfree(cb);
1991 }
1992
1993 if (conn->connect_cfm_cb)
1994 conn->connect_cfm_cb(conn, status);
1995 }
1996
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1997 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1998 {
1999 struct list_head list;
2000 struct hci_cb *cb, *tmp;
2001
2002 INIT_LIST_HEAD(&list);
2003 hci_cb_lookup(conn, &list);
2004
2005 list_for_each_entry_safe(cb, tmp, &list, list) {
2006 if (cb->disconn_cfm)
2007 cb->disconn_cfm(conn, reason);
2008 kfree(cb);
2009 }
2010
2011 if (conn->disconn_cfm_cb)
2012 conn->disconn_cfm_cb(conn, reason);
2013 }
2014
hci_security_cfm(struct hci_conn * conn,__u8 status,__u8 encrypt)2015 static inline void hci_security_cfm(struct hci_conn *conn, __u8 status,
2016 __u8 encrypt)
2017 {
2018 struct list_head list;
2019 struct hci_cb *cb, *tmp;
2020
2021 INIT_LIST_HEAD(&list);
2022 hci_cb_lookup(conn, &list);
2023
2024 list_for_each_entry_safe(cb, tmp, &list, list) {
2025 if (cb->security_cfm)
2026 cb->security_cfm(conn, status, encrypt);
2027 kfree(cb);
2028 }
2029
2030 if (conn->security_cfm_cb)
2031 conn->security_cfm_cb(conn, status);
2032 }
2033
hci_auth_cfm(struct hci_conn * conn,__u8 status)2034 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2035 {
2036 __u8 encrypt;
2037
2038 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2039 return;
2040
2041 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2042
2043 hci_security_cfm(conn, status, encrypt);
2044 }
2045
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)2046 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2047 {
2048 __u8 encrypt;
2049
2050 if (conn->state == BT_CONFIG) {
2051 if (!status)
2052 conn->state = BT_CONNECTED;
2053
2054 hci_connect_cfm(conn, status);
2055 hci_conn_drop(conn);
2056 return;
2057 }
2058
2059 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2060 encrypt = 0x00;
2061 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2062 encrypt = 0x02;
2063 else
2064 encrypt = 0x01;
2065
2066 if (!status) {
2067 if (conn->sec_level == BT_SECURITY_SDP)
2068 conn->sec_level = BT_SECURITY_LOW;
2069
2070 if (conn->pending_sec_level > conn->sec_level)
2071 conn->sec_level = conn->pending_sec_level;
2072 }
2073
2074 hci_security_cfm(conn, status, encrypt);
2075 }
2076
hci_key_change_cfm(struct hci_conn * conn,__u8 status)2077 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2078 {
2079 struct list_head list;
2080 struct hci_cb *cb, *tmp;
2081
2082 INIT_LIST_HEAD(&list);
2083 hci_cb_lookup(conn, &list);
2084
2085 list_for_each_entry_safe(cb, tmp, &list, list) {
2086 if (cb->key_change_cfm)
2087 cb->key_change_cfm(conn, status);
2088 kfree(cb);
2089 }
2090 }
2091
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)2092 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2093 __u8 role)
2094 {
2095 struct list_head list;
2096 struct hci_cb *cb, *tmp;
2097
2098 INIT_LIST_HEAD(&list);
2099 hci_cb_lookup(conn, &list);
2100
2101 list_for_each_entry_safe(cb, tmp, &list, list) {
2102 if (cb->role_switch_cfm)
2103 cb->role_switch_cfm(conn, status, role);
2104 kfree(cb);
2105 }
2106 }
2107
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)2108 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2109 {
2110 if (addr_type != ADDR_LE_DEV_RANDOM)
2111 return false;
2112
2113 if ((bdaddr->b[5] & 0xc0) == 0x40)
2114 return true;
2115
2116 return false;
2117 }
2118
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)2119 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2120 {
2121 if (addr_type == ADDR_LE_DEV_PUBLIC)
2122 return true;
2123
2124 /* Check for Random Static address type */
2125 if ((addr->b[5] & 0xc0) == 0xc0)
2126 return true;
2127
2128 return false;
2129 }
2130
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)2131 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2132 bdaddr_t *bdaddr, u8 addr_type)
2133 {
2134 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2135 return NULL;
2136
2137 return hci_find_irk_by_rpa(hdev, bdaddr);
2138 }
2139
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)2140 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2141 u16 to_multiplier)
2142 {
2143 u16 max_latency;
2144
2145 if (min > max) {
2146 BT_WARN("min %d > max %d", min, max);
2147 return -EINVAL;
2148 }
2149
2150 if (min < 6) {
2151 BT_WARN("min %d < 6", min);
2152 return -EINVAL;
2153 }
2154
2155 if (max > 3200) {
2156 BT_WARN("max %d > 3200", max);
2157 return -EINVAL;
2158 }
2159
2160 if (to_multiplier < 10) {
2161 BT_WARN("to_multiplier %d < 10", to_multiplier);
2162 return -EINVAL;
2163 }
2164
2165 if (to_multiplier > 3200) {
2166 BT_WARN("to_multiplier %d > 3200", to_multiplier);
2167 return -EINVAL;
2168 }
2169
2170 if (max >= to_multiplier * 8) {
2171 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier);
2172 return -EINVAL;
2173 }
2174
2175 max_latency = (to_multiplier * 4 / max) - 1;
2176 if (latency > 499) {
2177 BT_WARN("latency %d > 499", latency);
2178 return -EINVAL;
2179 }
2180
2181 if (latency > max_latency) {
2182 BT_WARN("latency %d > max_latency %d", latency, max_latency);
2183 return -EINVAL;
2184 }
2185
2186 return 0;
2187 }
2188
2189 int hci_register_cb(struct hci_cb *hcb);
2190 int hci_unregister_cb(struct hci_cb *hcb);
2191
2192 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2193 const void *param);
2194
2195 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2196 const void *param);
2197 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2198 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2199 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2200
2201 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2202 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2203
2204 u32 hci_conn_get_phy(struct hci_conn *conn);
2205
2206 /* ----- HCI Sockets ----- */
2207 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2208 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2209 int flag, struct sock *skip_sk);
2210 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2211 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2212 void *data, u16 data_len, ktime_t tstamp,
2213 int flag, struct sock *skip_sk);
2214
2215 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2216
2217 #define HCI_MGMT_VAR_LEN BIT(0)
2218 #define HCI_MGMT_NO_HDEV BIT(1)
2219 #define HCI_MGMT_UNTRUSTED BIT(2)
2220 #define HCI_MGMT_UNCONFIGURED BIT(3)
2221 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2222
2223 struct hci_mgmt_handler {
2224 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2225 u16 data_len);
2226 size_t data_len;
2227 unsigned long flags;
2228 };
2229
2230 struct hci_mgmt_chan {
2231 struct list_head list;
2232 unsigned short channel;
2233 size_t handler_count;
2234 const struct hci_mgmt_handler *handlers;
2235 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2236 };
2237
2238 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2239 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2240
2241 /* Management interface */
2242 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2243 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2244 BIT(BDADDR_LE_RANDOM))
2245 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2246 BIT(BDADDR_LE_PUBLIC) | \
2247 BIT(BDADDR_LE_RANDOM))
2248
2249 /* These LE scan and inquiry parameters were chosen according to LE General
2250 * Discovery Procedure specification.
2251 */
2252 #define DISCOV_LE_SCAN_WIN 0x12
2253 #define DISCOV_LE_SCAN_INT 0x12
2254 #define DISCOV_LE_TIMEOUT 10240 /* msec */
2255 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2256 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2257 #define DISCOV_BREDR_INQUIRY_LEN 0x08
2258 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2259 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2260 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2261 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2262 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2263 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2264 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2265 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2266
2267 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2268
2269 void mgmt_fill_version_info(void *ver);
2270 int mgmt_new_settings(struct hci_dev *hdev);
2271 void mgmt_index_added(struct hci_dev *hdev);
2272 void mgmt_index_removed(struct hci_dev *hdev);
2273 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2274 void mgmt_power_on(struct hci_dev *hdev, int err);
2275 void __mgmt_power_off(struct hci_dev *hdev);
2276 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2277 bool persistent);
2278 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2279 u8 *name, u8 name_len);
2280 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2281 u8 link_type, u8 addr_type, u8 reason,
2282 bool mgmt_connected);
2283 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2284 u8 link_type, u8 addr_type, u8 status);
2285 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn,
2286 u8 status);
2287 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2288 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2289 u8 status);
2290 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2291 u8 status);
2292 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2293 u8 link_type, u8 addr_type, u32 value,
2294 u8 confirm_hint);
2295 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2296 u8 link_type, u8 addr_type, u8 status);
2297 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2298 u8 link_type, u8 addr_type, u8 status);
2299 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2300 u8 link_type, u8 addr_type);
2301 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2302 u8 link_type, u8 addr_type, u8 status);
2303 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2304 u8 link_type, u8 addr_type, u8 status);
2305 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2306 u8 link_type, u8 addr_type, u32 passkey,
2307 u8 entered);
2308 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2309 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2310 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2311 u8 status);
2312 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2313 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2314 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2315 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2316 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2317 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2318 u64 instant);
2319 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2320 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2321 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2322 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2323 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2324 u8 addr_type);
2325 bool mgmt_powering_down(struct hci_dev *hdev);
2326 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2327 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2328 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2329 bool persistent);
2330 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2331 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2332 u16 max_interval, u16 latency, u16 timeout);
2333 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2334 bool mgmt_get_connectable(struct hci_dev *hdev);
2335 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2336 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2337 u8 instance);
2338 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2339 u8 instance);
2340 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2341 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2342 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2343 bdaddr_t *bdaddr, u8 addr_type);
2344
2345 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2346 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2347 u16 to_multiplier);
2348 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2349 __u8 ltk[16], __u8 key_size);
2350
2351 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2352 u8 *bdaddr_type);
2353
2354 #define SCO_AIRMODE_MASK 0x0003
2355 #define SCO_AIRMODE_CVSD 0x0000
2356 #define SCO_AIRMODE_TRANSP 0x0003
2357
2358 #define LOCAL_CODEC_ACL_MASK BIT(0)
2359 #define LOCAL_CODEC_SCO_MASK BIT(1)
2360
2361 #define TRANSPORT_TYPE_MAX 0x04
2362
2363 #endif /* __HCI_CORE_H */
2364