1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 #ifndef __HCI_CORE_H
26 #define __HCI_CORE_H
27
28 #include <linux/idr.h>
29 #include <linux/leds.h>
30 #include <linux/rculist.h>
31
32 #include <net/bluetooth/hci.h>
33 #include <net/bluetooth/hci_sock.h>
34
35 /* HCI priority */
36 #define HCI_PRIO_MAX 7
37
38 /* HCI maximum id value */
39 #define HCI_MAX_ID 10000
40
41 /* HCI Core structures */
42 struct inquiry_data {
43 bdaddr_t bdaddr;
44 __u8 pscan_rep_mode;
45 __u8 pscan_period_mode;
46 __u8 pscan_mode;
47 __u8 dev_class[3];
48 __le16 clock_offset;
49 __s8 rssi;
50 __u8 ssp_mode;
51 };
52
53 struct inquiry_entry {
54 struct list_head all; /* inq_cache.all */
55 struct list_head list; /* unknown or resolve */
56 enum {
57 NAME_NOT_KNOWN,
58 NAME_NEEDED,
59 NAME_PENDING,
60 NAME_KNOWN,
61 } name_state;
62 __u32 timestamp;
63 struct inquiry_data data;
64 };
65
66 struct discovery_state {
67 int type;
68 enum {
69 DISCOVERY_STOPPED,
70 DISCOVERY_STARTING,
71 DISCOVERY_FINDING,
72 DISCOVERY_RESOLVING,
73 DISCOVERY_STOPPING,
74 } state;
75 struct list_head all; /* All devices found during inquiry */
76 struct list_head unknown; /* Name state not known */
77 struct list_head resolve; /* Name needs to be resolved */
78 __u32 timestamp;
79 bdaddr_t last_adv_addr;
80 u8 last_adv_addr_type;
81 s8 last_adv_rssi;
82 u32 last_adv_flags;
83 u8 last_adv_data[HCI_MAX_AD_LENGTH];
84 u8 last_adv_data_len;
85 bool report_invalid_rssi;
86 bool result_filtering;
87 bool limited;
88 s8 rssi;
89 u16 uuid_count;
90 u8 (*uuids)[16];
91 unsigned long scan_start;
92 unsigned long scan_duration;
93 };
94
95 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
96
97 enum suspend_tasks {
98 SUSPEND_PAUSE_DISCOVERY,
99 SUSPEND_UNPAUSE_DISCOVERY,
100
101 SUSPEND_PAUSE_ADVERTISING,
102 SUSPEND_UNPAUSE_ADVERTISING,
103
104 SUSPEND_SCAN_DISABLE,
105 SUSPEND_SCAN_ENABLE,
106 SUSPEND_DISCONNECTING,
107
108 SUSPEND_POWERING_DOWN,
109
110 SUSPEND_PREPARE_NOTIFIER,
111 __SUSPEND_NUM_TASKS
112 };
113
114 enum suspended_state {
115 BT_RUNNING = 0,
116 BT_SUSPEND_DISCONNECT,
117 BT_SUSPEND_CONFIGURE_WAKE,
118 };
119
120 struct hci_conn_hash {
121 struct list_head list;
122 unsigned int acl_num;
123 unsigned int amp_num;
124 unsigned int sco_num;
125 unsigned int le_num;
126 unsigned int le_num_slave;
127 };
128
129 struct bdaddr_list {
130 struct list_head list;
131 bdaddr_t bdaddr;
132 u8 bdaddr_type;
133 };
134
135 struct bdaddr_list_with_irk {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 bdaddr_type;
139 u8 peer_irk[16];
140 u8 local_irk[16];
141 };
142
143 struct bdaddr_list_with_flags {
144 struct list_head list;
145 bdaddr_t bdaddr;
146 u8 bdaddr_type;
147 u32 current_flags;
148 };
149
150 enum hci_conn_flags {
151 HCI_CONN_FLAG_REMOTE_WAKEUP,
152 HCI_CONN_FLAG_MAX
153 };
154
155 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
156
157 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
158 static_assert(HCI_CONN_FLAG_MAX < 32);
159
160 struct bt_uuid {
161 struct list_head list;
162 u8 uuid[16];
163 u8 size;
164 u8 svc_hint;
165 };
166
167 struct blocked_key {
168 struct list_head list;
169 struct rcu_head rcu;
170 u8 type;
171 u8 val[16];
172 };
173
174 struct smp_csrk {
175 bdaddr_t bdaddr;
176 u8 bdaddr_type;
177 u8 link_type;
178 u8 type;
179 u8 val[16];
180 };
181
182 struct smp_ltk {
183 struct list_head list;
184 struct rcu_head rcu;
185 bdaddr_t bdaddr;
186 u8 bdaddr_type;
187 u8 link_type;
188 u8 authenticated;
189 u8 type;
190 u8 enc_size;
191 __le16 ediv;
192 __le64 rand;
193 u8 val[16];
194 };
195
196 struct smp_irk {
197 struct list_head list;
198 struct rcu_head rcu;
199 bdaddr_t rpa;
200 bdaddr_t bdaddr;
201 u8 addr_type;
202 u8 link_type;
203 u8 val[16];
204 };
205
206 struct link_key {
207 struct list_head list;
208 struct rcu_head rcu;
209 bdaddr_t bdaddr;
210 u8 bdaddr_type;
211 u8 link_type;
212 u8 type;
213 u8 val[HCI_LINK_KEY_SIZE];
214 u8 pin_len;
215 };
216
217 struct oob_data {
218 struct list_head list;
219 bdaddr_t bdaddr;
220 u8 bdaddr_type;
221 u8 present;
222 u8 hash192[16];
223 u8 rand192[16];
224 u8 hash256[16];
225 u8 rand256[16];
226 };
227
228 struct adv_info {
229 struct list_head list;
230 bool pending;
231 __u8 instance;
232 __u32 flags;
233 __u16 timeout;
234 __u16 remaining_time;
235 __u16 duration;
236 __u16 adv_data_len;
237 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
238 __u16 scan_rsp_len;
239 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
240 __s8 tx_power;
241 bdaddr_t random_addr;
242 bool rpa_expired;
243 struct delayed_work rpa_expired_cb;
244 };
245
246 #define HCI_MAX_ADV_INSTANCES 5
247 #define HCI_DEFAULT_ADV_DURATION 2
248
249 struct adv_pattern {
250 struct list_head list;
251 __u8 ad_type;
252 __u8 offset;
253 __u8 length;
254 __u8 value[HCI_MAX_AD_LENGTH];
255 };
256
257 struct adv_monitor {
258 struct list_head patterns;
259 bool active;
260 __u16 handle;
261 };
262
263 #define HCI_MIN_ADV_MONITOR_HANDLE 1
264 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
265 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
266
267 #define HCI_MAX_SHORT_NAME_LENGTH 10
268
269 /* Min encryption key size to match with SMP */
270 #define HCI_MIN_ENC_KEY_SIZE 7
271
272 /* Default LE RPA expiry time, 15 minutes */
273 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
274
275 /* Default min/max age of connection information (1s/3s) */
276 #define DEFAULT_CONN_INFO_MIN_AGE 1000
277 #define DEFAULT_CONN_INFO_MAX_AGE 3000
278 /* Default authenticated payload timeout 30s */
279 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
280
281 struct amp_assoc {
282 __u16 len;
283 __u16 offset;
284 __u16 rem_len;
285 __u16 len_so_far;
286 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
287 };
288
289 #define HCI_MAX_PAGES 3
290
291 struct hci_dev {
292 struct list_head list;
293 struct mutex lock;
294
295 const char *name;
296 unsigned long flags;
297 __u16 id;
298 __u8 bus;
299 __u8 dev_type;
300 bdaddr_t bdaddr;
301 bdaddr_t setup_addr;
302 bdaddr_t public_addr;
303 bdaddr_t random_addr;
304 bdaddr_t static_addr;
305 __u8 adv_addr_type;
306 __u8 dev_name[HCI_MAX_NAME_LENGTH];
307 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
308 __u8 eir[HCI_MAX_EIR_LENGTH];
309 __u16 appearance;
310 __u8 dev_class[3];
311 __u8 major_class;
312 __u8 minor_class;
313 __u8 max_page;
314 __u8 features[HCI_MAX_PAGES][8];
315 __u8 le_features[8];
316 __u8 le_accept_list_size;
317 __u8 le_resolv_list_size;
318 __u8 le_num_of_adv_sets;
319 __u8 le_states[8];
320 __u8 commands[64];
321 __u8 hci_ver;
322 __u16 hci_rev;
323 __u8 lmp_ver;
324 __u16 manufacturer;
325 __u16 lmp_subver;
326 __u16 voice_setting;
327 __u8 num_iac;
328 __u8 stored_max_keys;
329 __u8 stored_num_keys;
330 __u8 io_capability;
331 __s8 inq_tx_power;
332 __u8 err_data_reporting;
333 __u16 page_scan_interval;
334 __u16 page_scan_window;
335 __u8 page_scan_type;
336 __u8 le_adv_channel_map;
337 __u16 le_adv_min_interval;
338 __u16 le_adv_max_interval;
339 __u8 le_scan_type;
340 __u16 le_scan_interval;
341 __u16 le_scan_window;
342 __u16 le_scan_int_suspend;
343 __u16 le_scan_window_suspend;
344 __u16 le_scan_int_discovery;
345 __u16 le_scan_window_discovery;
346 __u16 le_scan_int_adv_monitor;
347 __u16 le_scan_window_adv_monitor;
348 __u16 le_scan_int_connect;
349 __u16 le_scan_window_connect;
350 __u16 le_conn_min_interval;
351 __u16 le_conn_max_interval;
352 __u16 le_conn_latency;
353 __u16 le_supv_timeout;
354 __u16 le_def_tx_len;
355 __u16 le_def_tx_time;
356 __u16 le_max_tx_len;
357 __u16 le_max_tx_time;
358 __u16 le_max_rx_len;
359 __u16 le_max_rx_time;
360 __u8 le_max_key_size;
361 __u8 le_min_key_size;
362 __u16 discov_interleaved_timeout;
363 __u16 conn_info_min_age;
364 __u16 conn_info_max_age;
365 __u16 auth_payload_timeout;
366 __u8 min_enc_key_size;
367 __u8 max_enc_key_size;
368 __u8 pairing_opts;
369 __u8 ssp_debug_mode;
370 __u8 hw_error_code;
371 __u32 clock;
372 __u16 advmon_allowlist_duration;
373 __u16 advmon_no_filter_duration;
374
375 __u16 devid_source;
376 __u16 devid_vendor;
377 __u16 devid_product;
378 __u16 devid_version;
379
380 __u8 def_page_scan_type;
381 __u16 def_page_scan_int;
382 __u16 def_page_scan_window;
383 __u8 def_inq_scan_type;
384 __u16 def_inq_scan_int;
385 __u16 def_inq_scan_window;
386 __u16 def_br_lsto;
387 __u16 def_page_timeout;
388 __u16 def_multi_adv_rotation_duration;
389 __u16 def_le_autoconnect_timeout;
390
391 __u16 pkt_type;
392 __u16 esco_type;
393 __u16 link_policy;
394 __u16 link_mode;
395
396 __u32 idle_timeout;
397 __u16 sniff_min_interval;
398 __u16 sniff_max_interval;
399
400 __u8 amp_status;
401 __u32 amp_total_bw;
402 __u32 amp_max_bw;
403 __u32 amp_min_latency;
404 __u32 amp_max_pdu;
405 __u8 amp_type;
406 __u16 amp_pal_cap;
407 __u16 amp_assoc_size;
408 __u32 amp_max_flush_to;
409 __u32 amp_be_flush_to;
410
411 struct amp_assoc loc_assoc;
412
413 __u8 flow_ctl_mode;
414
415 unsigned int auto_accept_delay;
416
417 unsigned long quirks;
418
419 atomic_t cmd_cnt;
420 unsigned int acl_cnt;
421 unsigned int sco_cnt;
422 unsigned int le_cnt;
423
424 unsigned int acl_mtu;
425 unsigned int sco_mtu;
426 unsigned int le_mtu;
427 unsigned int acl_pkts;
428 unsigned int sco_pkts;
429 unsigned int le_pkts;
430
431 __u16 block_len;
432 __u16 block_mtu;
433 __u16 num_blocks;
434 __u16 block_cnt;
435
436 unsigned long acl_last_tx;
437 unsigned long sco_last_tx;
438 unsigned long le_last_tx;
439
440 __u8 le_tx_def_phys;
441 __u8 le_rx_def_phys;
442
443 struct workqueue_struct *workqueue;
444 struct workqueue_struct *req_workqueue;
445
446 struct work_struct power_on;
447 struct delayed_work power_off;
448 struct work_struct error_reset;
449
450 __u16 discov_timeout;
451 struct delayed_work discov_off;
452
453 struct delayed_work service_cache;
454
455 struct delayed_work cmd_timer;
456
457 struct work_struct rx_work;
458 struct work_struct cmd_work;
459 struct work_struct tx_work;
460
461 struct work_struct discov_update;
462 struct work_struct bg_scan_update;
463 struct work_struct scan_update;
464 struct work_struct connectable_update;
465 struct work_struct discoverable_update;
466 struct delayed_work le_scan_disable;
467 struct delayed_work le_scan_restart;
468
469 struct sk_buff_head rx_q;
470 struct sk_buff_head raw_q;
471 struct sk_buff_head cmd_q;
472
473 struct sk_buff *sent_cmd;
474
475 struct mutex req_lock;
476 wait_queue_head_t req_wait_q;
477 __u32 req_status;
478 __u32 req_result;
479 struct sk_buff *req_skb;
480
481 void *smp_data;
482 void *smp_bredr_data;
483
484 struct discovery_state discovery;
485
486 int discovery_old_state;
487 bool discovery_paused;
488 int advertising_old_state;
489 bool advertising_paused;
490
491 struct notifier_block suspend_notifier;
492 struct work_struct suspend_prepare;
493 enum suspended_state suspend_state_next;
494 enum suspended_state suspend_state;
495 bool scanning_paused;
496 bool suspended;
497 u8 wake_reason;
498 bdaddr_t wake_addr;
499 u8 wake_addr_type;
500
501 wait_queue_head_t suspend_wait_q;
502 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
503
504 struct hci_conn_hash conn_hash;
505
506 struct list_head mgmt_pending;
507 struct list_head reject_list;
508 struct list_head accept_list;
509 struct list_head uuids;
510 struct list_head link_keys;
511 struct list_head long_term_keys;
512 struct list_head identity_resolving_keys;
513 struct list_head remote_oob_data;
514 struct list_head le_accept_list;
515 struct list_head le_resolv_list;
516 struct list_head le_conn_params;
517 struct list_head pend_le_conns;
518 struct list_head pend_le_reports;
519 struct list_head blocked_keys;
520
521 struct hci_dev_stats stat;
522
523 atomic_t promisc;
524
525 const char *hw_info;
526 const char *fw_info;
527 struct dentry *debugfs;
528
529 struct device dev;
530
531 struct rfkill *rfkill;
532
533 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
534
535 __s8 adv_tx_power;
536 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
537 __u8 adv_data_len;
538 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
539 __u8 scan_rsp_data_len;
540
541 struct list_head adv_instances;
542 unsigned int adv_instance_cnt;
543 __u8 cur_adv_instance;
544 __u16 adv_instance_timeout;
545 struct delayed_work adv_instance_expire;
546
547 struct idr adv_monitors_idr;
548 unsigned int adv_monitors_cnt;
549
550 __u8 irk[16];
551 __u32 rpa_timeout;
552 struct delayed_work rpa_expired;
553 bdaddr_t rpa;
554
555 enum {
556 INTERLEAVE_SCAN_NONE,
557 INTERLEAVE_SCAN_NO_FILTER,
558 INTERLEAVE_SCAN_ALLOWLIST
559 } interleave_scan_state;
560
561 struct delayed_work interleave_scan;
562
563 #if IS_ENABLED(CONFIG_BT_LEDS)
564 struct led_trigger *power_led;
565 #endif
566
567 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
568 __u16 msft_opcode;
569 void *msft_data;
570 #endif
571
572 int (*open)(struct hci_dev *hdev);
573 int (*close)(struct hci_dev *hdev);
574 int (*flush)(struct hci_dev *hdev);
575 int (*setup)(struct hci_dev *hdev);
576 int (*shutdown)(struct hci_dev *hdev);
577 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
578 void (*notify)(struct hci_dev *hdev, unsigned int evt);
579 void (*hw_error)(struct hci_dev *hdev, u8 code);
580 int (*post_init)(struct hci_dev *hdev);
581 int (*set_diag)(struct hci_dev *hdev, bool enable);
582 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
583 void (*cmd_timeout)(struct hci_dev *hdev);
584 bool (*prevent_wake)(struct hci_dev *hdev);
585 };
586
587 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
588
589 enum conn_reasons {
590 CONN_REASON_PAIR_DEVICE,
591 CONN_REASON_L2CAP_CHAN,
592 CONN_REASON_SCO_CONNECT,
593 };
594
595 struct hci_conn {
596 struct list_head list;
597
598 atomic_t refcnt;
599
600 bdaddr_t dst;
601 __u8 dst_type;
602 bdaddr_t src;
603 __u8 src_type;
604 bdaddr_t init_addr;
605 __u8 init_addr_type;
606 bdaddr_t resp_addr;
607 __u8 resp_addr_type;
608 __u16 handle;
609 __u16 state;
610 __u8 mode;
611 __u8 type;
612 __u8 role;
613 bool out;
614 __u8 attempt;
615 __u8 dev_class[3];
616 __u8 features[HCI_MAX_PAGES][8];
617 __u16 pkt_type;
618 __u16 link_policy;
619 __u8 key_type;
620 __u8 auth_type;
621 __u8 sec_level;
622 __u8 pending_sec_level;
623 __u8 pin_length;
624 __u8 enc_key_size;
625 __u8 io_capability;
626 __u32 passkey_notify;
627 __u8 passkey_entered;
628 __u16 disc_timeout;
629 __u16 conn_timeout;
630 __u16 setting;
631 __u16 auth_payload_timeout;
632 __u16 le_conn_min_interval;
633 __u16 le_conn_max_interval;
634 __u16 le_conn_interval;
635 __u16 le_conn_latency;
636 __u16 le_supv_timeout;
637 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
638 __u8 le_adv_data_len;
639 __u8 le_tx_phy;
640 __u8 le_rx_phy;
641 __s8 rssi;
642 __s8 tx_power;
643 __s8 max_tx_power;
644 unsigned long flags;
645
646 enum conn_reasons conn_reason;
647
648 __u32 clock;
649 __u16 clock_accuracy;
650
651 unsigned long conn_info_timestamp;
652
653 __u8 remote_cap;
654 __u8 remote_auth;
655 __u8 remote_id;
656
657 unsigned int sent;
658
659 struct sk_buff_head data_q;
660 struct list_head chan_list;
661
662 struct delayed_work disc_work;
663 struct delayed_work auto_accept_work;
664 struct delayed_work idle_work;
665 struct delayed_work le_conn_timeout;
666 struct work_struct le_scan_cleanup;
667
668 struct device dev;
669 struct dentry *debugfs;
670
671 struct hci_dev *hdev;
672 void *l2cap_data;
673 void *sco_data;
674 struct amp_mgr *amp_mgr;
675
676 struct hci_conn *link;
677
678 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
679 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
680 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
681 };
682
683 struct hci_chan {
684 struct list_head list;
685 __u16 handle;
686 struct hci_conn *conn;
687 struct sk_buff_head data_q;
688 unsigned int sent;
689 __u8 state;
690 bool amp;
691 };
692
693 struct hci_conn_params {
694 struct list_head list;
695 struct list_head action;
696
697 bdaddr_t addr;
698 u8 addr_type;
699
700 u16 conn_min_interval;
701 u16 conn_max_interval;
702 u16 conn_latency;
703 u16 supervision_timeout;
704
705 enum {
706 HCI_AUTO_CONN_DISABLED,
707 HCI_AUTO_CONN_REPORT,
708 HCI_AUTO_CONN_DIRECT,
709 HCI_AUTO_CONN_ALWAYS,
710 HCI_AUTO_CONN_LINK_LOSS,
711 HCI_AUTO_CONN_EXPLICIT,
712 } auto_connect;
713
714 struct hci_conn *conn;
715 bool explicit_connect;
716 u32 current_flags;
717 };
718
719 extern struct list_head hci_dev_list;
720 extern struct list_head hci_cb_list;
721 extern rwlock_t hci_dev_list_lock;
722 extern struct mutex hci_cb_list_lock;
723
724 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
725 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
726 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
727 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
728 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
729 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
730 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
731
732 #define hci_dev_clear_volatile_flags(hdev) \
733 do { \
734 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
735 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
736 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
737 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
738 } while (0)
739
740 /* ----- HCI interface to upper protocols ----- */
741 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
742 int l2cap_disconn_ind(struct hci_conn *hcon);
743 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
744
745 #if IS_ENABLED(CONFIG_BT_BREDR)
746 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
747 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
748 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)749 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
750 __u8 *flags)
751 {
752 return 0;
753 }
754
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)755 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
756 {
757 }
758 #endif
759
760 /* ----- Inquiry cache ----- */
761 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
762 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
763
discovery_init(struct hci_dev * hdev)764 static inline void discovery_init(struct hci_dev *hdev)
765 {
766 hdev->discovery.state = DISCOVERY_STOPPED;
767 INIT_LIST_HEAD(&hdev->discovery.all);
768 INIT_LIST_HEAD(&hdev->discovery.unknown);
769 INIT_LIST_HEAD(&hdev->discovery.resolve);
770 hdev->discovery.report_invalid_rssi = true;
771 hdev->discovery.rssi = HCI_RSSI_INVALID;
772 }
773
hci_discovery_filter_clear(struct hci_dev * hdev)774 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
775 {
776 hdev->discovery.result_filtering = false;
777 hdev->discovery.report_invalid_rssi = true;
778 hdev->discovery.rssi = HCI_RSSI_INVALID;
779 hdev->discovery.uuid_count = 0;
780 kfree(hdev->discovery.uuids);
781 hdev->discovery.uuids = NULL;
782 hdev->discovery.scan_start = 0;
783 hdev->discovery.scan_duration = 0;
784 }
785
786 bool hci_discovery_active(struct hci_dev *hdev);
787
788 void hci_discovery_set_state(struct hci_dev *hdev, int state);
789
inquiry_cache_empty(struct hci_dev * hdev)790 static inline int inquiry_cache_empty(struct hci_dev *hdev)
791 {
792 return list_empty(&hdev->discovery.all);
793 }
794
inquiry_cache_age(struct hci_dev * hdev)795 static inline long inquiry_cache_age(struct hci_dev *hdev)
796 {
797 struct discovery_state *c = &hdev->discovery;
798 return jiffies - c->timestamp;
799 }
800
inquiry_entry_age(struct inquiry_entry * e)801 static inline long inquiry_entry_age(struct inquiry_entry *e)
802 {
803 return jiffies - e->timestamp;
804 }
805
806 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
807 bdaddr_t *bdaddr);
808 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
809 bdaddr_t *bdaddr);
810 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
811 bdaddr_t *bdaddr,
812 int state);
813 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
814 struct inquiry_entry *ie);
815 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
816 bool name_known);
817 void hci_inquiry_cache_flush(struct hci_dev *hdev);
818
819 /* ----- HCI Connections ----- */
820 enum {
821 HCI_CONN_AUTH_PEND,
822 HCI_CONN_ENCRYPT_PEND,
823 HCI_CONN_RSWITCH_PEND,
824 HCI_CONN_MODE_CHANGE_PEND,
825 HCI_CONN_SCO_SETUP_PEND,
826 HCI_CONN_MGMT_CONNECTED,
827 HCI_CONN_SSP_ENABLED,
828 HCI_CONN_SC_ENABLED,
829 HCI_CONN_AES_CCM,
830 HCI_CONN_POWER_SAVE,
831 HCI_CONN_FLUSH_KEY,
832 HCI_CONN_ENCRYPT,
833 HCI_CONN_AUTH,
834 HCI_CONN_SECURE,
835 HCI_CONN_FIPS,
836 HCI_CONN_STK_ENCRYPT,
837 HCI_CONN_AUTH_INITIATOR,
838 HCI_CONN_DROP,
839 HCI_CONN_PARAM_REMOVAL_PEND,
840 HCI_CONN_NEW_LINK_KEY,
841 HCI_CONN_SCANNING,
842 HCI_CONN_AUTH_FAILURE,
843 };
844
hci_conn_ssp_enabled(struct hci_conn * conn)845 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
846 {
847 struct hci_dev *hdev = conn->hdev;
848 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
849 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
850 }
851
hci_conn_sc_enabled(struct hci_conn * conn)852 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
853 {
854 struct hci_dev *hdev = conn->hdev;
855 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
856 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
857 }
858
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)859 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
860 {
861 struct hci_conn_hash *h = &hdev->conn_hash;
862 list_add_rcu(&c->list, &h->list);
863 switch (c->type) {
864 case ACL_LINK:
865 h->acl_num++;
866 break;
867 case AMP_LINK:
868 h->amp_num++;
869 break;
870 case LE_LINK:
871 h->le_num++;
872 if (c->role == HCI_ROLE_SLAVE)
873 h->le_num_slave++;
874 break;
875 case SCO_LINK:
876 case ESCO_LINK:
877 h->sco_num++;
878 break;
879 }
880 }
881
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)882 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
883 {
884 struct hci_conn_hash *h = &hdev->conn_hash;
885
886 list_del_rcu(&c->list);
887 synchronize_rcu();
888
889 switch (c->type) {
890 case ACL_LINK:
891 h->acl_num--;
892 break;
893 case AMP_LINK:
894 h->amp_num--;
895 break;
896 case LE_LINK:
897 h->le_num--;
898 if (c->role == HCI_ROLE_SLAVE)
899 h->le_num_slave--;
900 break;
901 case SCO_LINK:
902 case ESCO_LINK:
903 h->sco_num--;
904 break;
905 }
906 }
907
hci_conn_num(struct hci_dev * hdev,__u8 type)908 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
909 {
910 struct hci_conn_hash *h = &hdev->conn_hash;
911 switch (type) {
912 case ACL_LINK:
913 return h->acl_num;
914 case AMP_LINK:
915 return h->amp_num;
916 case LE_LINK:
917 return h->le_num;
918 case SCO_LINK:
919 case ESCO_LINK:
920 return h->sco_num;
921 default:
922 return 0;
923 }
924 }
925
hci_conn_count(struct hci_dev * hdev)926 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
927 {
928 struct hci_conn_hash *c = &hdev->conn_hash;
929
930 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
931 }
932
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)933 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
934 {
935 struct hci_conn_hash *h = &hdev->conn_hash;
936 struct hci_conn *c;
937 __u8 type = INVALID_LINK;
938
939 rcu_read_lock();
940
941 list_for_each_entry_rcu(c, &h->list, list) {
942 if (c->handle == handle) {
943 type = c->type;
944 break;
945 }
946 }
947
948 rcu_read_unlock();
949
950 return type;
951 }
952
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)953 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
954 __u16 handle)
955 {
956 struct hci_conn_hash *h = &hdev->conn_hash;
957 struct hci_conn *c;
958
959 rcu_read_lock();
960
961 list_for_each_entry_rcu(c, &h->list, list) {
962 if (c->handle == handle) {
963 rcu_read_unlock();
964 return c;
965 }
966 }
967 rcu_read_unlock();
968
969 return NULL;
970 }
971
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)972 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
973 __u8 type, bdaddr_t *ba)
974 {
975 struct hci_conn_hash *h = &hdev->conn_hash;
976 struct hci_conn *c;
977
978 rcu_read_lock();
979
980 list_for_each_entry_rcu(c, &h->list, list) {
981 if (c->type == type && !bacmp(&c->dst, ba)) {
982 rcu_read_unlock();
983 return c;
984 }
985 }
986
987 rcu_read_unlock();
988
989 return NULL;
990 }
991
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)992 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
993 bdaddr_t *ba,
994 __u8 ba_type)
995 {
996 struct hci_conn_hash *h = &hdev->conn_hash;
997 struct hci_conn *c;
998
999 rcu_read_lock();
1000
1001 list_for_each_entry_rcu(c, &h->list, list) {
1002 if (c->type != LE_LINK)
1003 continue;
1004
1005 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1006 rcu_read_unlock();
1007 return c;
1008 }
1009 }
1010
1011 rcu_read_unlock();
1012
1013 return NULL;
1014 }
1015
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1016 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1017 __u8 type, __u16 state)
1018 {
1019 struct hci_conn_hash *h = &hdev->conn_hash;
1020 struct hci_conn *c;
1021
1022 rcu_read_lock();
1023
1024 list_for_each_entry_rcu(c, &h->list, list) {
1025 if (c->type == type && c->state == state) {
1026 rcu_read_unlock();
1027 return c;
1028 }
1029 }
1030
1031 rcu_read_unlock();
1032
1033 return NULL;
1034 }
1035
hci_lookup_le_connect(struct hci_dev * hdev)1036 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1037 {
1038 struct hci_conn_hash *h = &hdev->conn_hash;
1039 struct hci_conn *c;
1040
1041 rcu_read_lock();
1042
1043 list_for_each_entry_rcu(c, &h->list, list) {
1044 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1045 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1046 rcu_read_unlock();
1047 return c;
1048 }
1049 }
1050
1051 rcu_read_unlock();
1052
1053 return NULL;
1054 }
1055
1056 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1057 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1058 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1059
1060 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1061 u8 role);
1062 int hci_conn_del(struct hci_conn *conn);
1063 void hci_conn_hash_flush(struct hci_dev *hdev);
1064 void hci_conn_check_pending(struct hci_dev *hdev);
1065
1066 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1067 void hci_chan_del(struct hci_chan *chan);
1068 void hci_chan_list_flush(struct hci_conn *conn);
1069 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1070
1071 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1072 u8 dst_type, u8 sec_level,
1073 u16 conn_timeout,
1074 enum conn_reasons conn_reason);
1075 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1076 u8 dst_type, u8 sec_level, u16 conn_timeout,
1077 u8 role, bdaddr_t *direct_rpa);
1078 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1079 u8 sec_level, u8 auth_type,
1080 enum conn_reasons conn_reason);
1081 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1082 __u16 setting);
1083 int hci_conn_check_link_mode(struct hci_conn *conn);
1084 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1085 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1086 bool initiator);
1087 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1088
1089 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1090
1091 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1092
1093 /*
1094 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1095 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1096 * working or anything else. They just guarantee that the object is available
1097 * and can be dereferenced. So you can use its locks, local variables and any
1098 * other constant data.
1099 * Before accessing runtime data, you _must_ lock the object and then check that
1100 * it is still running. As soon as you release the locks, the connection might
1101 * get dropped, though.
1102 *
1103 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1104 * how long the underlying connection is held. So every channel that runs on the
1105 * hci_conn object calls this to prevent the connection from disappearing. As
1106 * long as you hold a device, you must also guarantee that you have a valid
1107 * reference to the device via hci_conn_get() (or the initial reference from
1108 * hci_conn_add()).
1109 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1110 * break because nobody cares for that. But this means, we cannot use
1111 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1112 */
1113
hci_conn_get(struct hci_conn * conn)1114 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1115 {
1116 get_device(&conn->dev);
1117 return conn;
1118 }
1119
hci_conn_put(struct hci_conn * conn)1120 static inline void hci_conn_put(struct hci_conn *conn)
1121 {
1122 put_device(&conn->dev);
1123 }
1124
hci_conn_hold(struct hci_conn * conn)1125 static inline void hci_conn_hold(struct hci_conn *conn)
1126 {
1127 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1128
1129 atomic_inc(&conn->refcnt);
1130 cancel_delayed_work(&conn->disc_work);
1131 }
1132
hci_conn_drop(struct hci_conn * conn)1133 static inline void hci_conn_drop(struct hci_conn *conn)
1134 {
1135 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1136
1137 if (atomic_dec_and_test(&conn->refcnt)) {
1138 unsigned long timeo;
1139
1140 switch (conn->type) {
1141 case ACL_LINK:
1142 case LE_LINK:
1143 cancel_delayed_work(&conn->idle_work);
1144 if (conn->state == BT_CONNECTED) {
1145 timeo = conn->disc_timeout;
1146 if (!conn->out)
1147 timeo *= 2;
1148 } else {
1149 timeo = 0;
1150 }
1151 break;
1152
1153 case AMP_LINK:
1154 timeo = conn->disc_timeout;
1155 break;
1156
1157 default:
1158 timeo = 0;
1159 break;
1160 }
1161
1162 cancel_delayed_work(&conn->disc_work);
1163 queue_delayed_work(conn->hdev->workqueue,
1164 &conn->disc_work, timeo);
1165 }
1166 }
1167
1168 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1169 static inline void hci_dev_put(struct hci_dev *d)
1170 {
1171 BT_DBG("%s orig refcnt %d", d->name,
1172 kref_read(&d->dev.kobj.kref));
1173
1174 put_device(&d->dev);
1175 }
1176
hci_dev_hold(struct hci_dev * d)1177 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1178 {
1179 BT_DBG("%s orig refcnt %d", d->name,
1180 kref_read(&d->dev.kobj.kref));
1181
1182 get_device(&d->dev);
1183 return d;
1184 }
1185
1186 #define hci_dev_lock(d) mutex_lock(&d->lock)
1187 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1188
1189 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1190 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1191
hci_get_drvdata(struct hci_dev * hdev)1192 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1193 {
1194 return dev_get_drvdata(&hdev->dev);
1195 }
1196
hci_set_drvdata(struct hci_dev * hdev,void * data)1197 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1198 {
1199 dev_set_drvdata(&hdev->dev, data);
1200 }
1201
1202 struct hci_dev *hci_dev_get(int index);
1203 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1204
1205 struct hci_dev *hci_alloc_dev(void);
1206 void hci_free_dev(struct hci_dev *hdev);
1207 int hci_register_dev(struct hci_dev *hdev);
1208 void hci_unregister_dev(struct hci_dev *hdev);
1209 void hci_cleanup_dev(struct hci_dev *hdev);
1210 int hci_suspend_dev(struct hci_dev *hdev);
1211 int hci_resume_dev(struct hci_dev *hdev);
1212 int hci_reset_dev(struct hci_dev *hdev);
1213 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1214 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1215 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1216 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1217
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1218 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1219 {
1220 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1221 hdev->msft_opcode = opcode;
1222 #endif
1223 }
1224
1225 int hci_dev_open(__u16 dev);
1226 int hci_dev_close(__u16 dev);
1227 int hci_dev_do_close(struct hci_dev *hdev);
1228 int hci_dev_reset(__u16 dev);
1229 int hci_dev_reset_stat(__u16 dev);
1230 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1231 int hci_get_dev_list(void __user *arg);
1232 int hci_get_dev_info(void __user *arg);
1233 int hci_get_conn_list(void __user *arg);
1234 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1235 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1236 int hci_inquiry(void __user *arg);
1237
1238 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1239 bdaddr_t *bdaddr, u8 type);
1240 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1241 struct list_head *list, bdaddr_t *bdaddr,
1242 u8 type);
1243 struct bdaddr_list_with_flags *
1244 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1245 u8 type);
1246 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1247 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1248 u8 type, u8 *peer_irk, u8 *local_irk);
1249 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1250 u8 type, u32 flags);
1251 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1252 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1253 u8 type);
1254 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1255 u8 type);
1256 void hci_bdaddr_list_clear(struct list_head *list);
1257
1258 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1259 bdaddr_t *addr, u8 addr_type);
1260 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1261 bdaddr_t *addr, u8 addr_type);
1262 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1263 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1264
1265 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1266 bdaddr_t *addr,
1267 u8 addr_type);
1268
1269 void hci_uuids_clear(struct hci_dev *hdev);
1270
1271 void hci_link_keys_clear(struct hci_dev *hdev);
1272 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1273 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1274 bdaddr_t *bdaddr, u8 *val, u8 type,
1275 u8 pin_len, bool *persistent);
1276 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1277 u8 addr_type, u8 type, u8 authenticated,
1278 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1279 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1280 u8 addr_type, u8 role);
1281 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1282 void hci_smp_ltks_clear(struct hci_dev *hdev);
1283 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1284
1285 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1286 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1287 u8 addr_type);
1288 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1289 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1290 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1291 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1292 void hci_blocked_keys_clear(struct hci_dev *hdev);
1293 void hci_smp_irks_clear(struct hci_dev *hdev);
1294
1295 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1296
1297 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1298 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1299 bdaddr_t *bdaddr, u8 bdaddr_type);
1300 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1301 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1302 u8 *hash256, u8 *rand256);
1303 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1304 u8 bdaddr_type);
1305
1306 void hci_adv_instances_clear(struct hci_dev *hdev);
1307 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1308 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1309 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1310 u16 adv_data_len, u8 *adv_data,
1311 u16 scan_rsp_len, u8 *scan_rsp_data,
1312 u16 timeout, u16 duration);
1313 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1314 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1315
1316 void hci_adv_monitors_clear(struct hci_dev *hdev);
1317 void hci_free_adv_monitor(struct adv_monitor *monitor);
1318 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1319 int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
1320 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1321
1322 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1323
1324 void hci_init_sysfs(struct hci_dev *hdev);
1325 void hci_conn_init_sysfs(struct hci_conn *conn);
1326 void hci_conn_add_sysfs(struct hci_conn *conn);
1327 void hci_conn_del_sysfs(struct hci_conn *conn);
1328
1329 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1330
1331 /* ----- LMP capabilities ----- */
1332 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1333 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1334 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1335 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1336 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1337 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1338 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1339 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1340 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1341 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1342 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1343 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1344 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1345 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1346 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1347 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1348 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1349 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1350 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1351 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1352 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1353 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1354 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1355
1356 /* ----- Extended LMP capabilities ----- */
1357 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1358 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1359 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1360 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1361 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1362 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1363
1364 /* ----- Host capabilities ----- */
1365 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1366 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1367 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1368 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1369
1370 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1371 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1372 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1373 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1374
1375 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1376 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1377
1378 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1379 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1380
1381 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1382 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1383
1384 /* Use LL Privacy based address resolution if supported */
1385 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1386
1387 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1388 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1389 ((dev)->commands[37] & 0x40))
1390 /* Use ext create connection if command is supported */
1391 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1392
1393 /* Extended advertising support */
1394 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1395
1396 /* ----- HCI protocols ----- */
1397 #define HCI_PROTO_DEFER 0x01
1398
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1399 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1400 __u8 type, __u8 *flags)
1401 {
1402 switch (type) {
1403 case ACL_LINK:
1404 return l2cap_connect_ind(hdev, bdaddr);
1405
1406 case SCO_LINK:
1407 case ESCO_LINK:
1408 return sco_connect_ind(hdev, bdaddr, flags);
1409
1410 default:
1411 BT_ERR("unknown link type %d", type);
1412 return -EINVAL;
1413 }
1414 }
1415
hci_proto_disconn_ind(struct hci_conn * conn)1416 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1417 {
1418 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1419 return HCI_ERROR_REMOTE_USER_TERM;
1420
1421 return l2cap_disconn_ind(conn);
1422 }
1423
1424 /* ----- HCI callbacks ----- */
1425 struct hci_cb {
1426 struct list_head list;
1427
1428 char *name;
1429
1430 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1431 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1432 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1433 __u8 encrypt);
1434 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1435 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1436 };
1437
hci_connect_cfm(struct hci_conn * conn,__u8 status)1438 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1439 {
1440 struct hci_cb *cb;
1441
1442 mutex_lock(&hci_cb_list_lock);
1443 list_for_each_entry(cb, &hci_cb_list, list) {
1444 if (cb->connect_cfm)
1445 cb->connect_cfm(conn, status);
1446 }
1447 mutex_unlock(&hci_cb_list_lock);
1448
1449 if (conn->connect_cfm_cb)
1450 conn->connect_cfm_cb(conn, status);
1451 }
1452
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1453 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1454 {
1455 struct hci_cb *cb;
1456
1457 mutex_lock(&hci_cb_list_lock);
1458 list_for_each_entry(cb, &hci_cb_list, list) {
1459 if (cb->disconn_cfm)
1460 cb->disconn_cfm(conn, reason);
1461 }
1462 mutex_unlock(&hci_cb_list_lock);
1463
1464 if (conn->disconn_cfm_cb)
1465 conn->disconn_cfm_cb(conn, reason);
1466 }
1467
hci_auth_cfm(struct hci_conn * conn,__u8 status)1468 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1469 {
1470 struct hci_cb *cb;
1471 __u8 encrypt;
1472
1473 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1474 return;
1475
1476 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1477
1478 mutex_lock(&hci_cb_list_lock);
1479 list_for_each_entry(cb, &hci_cb_list, list) {
1480 if (cb->security_cfm)
1481 cb->security_cfm(conn, status, encrypt);
1482 }
1483 mutex_unlock(&hci_cb_list_lock);
1484
1485 if (conn->security_cfm_cb)
1486 conn->security_cfm_cb(conn, status);
1487 }
1488
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)1489 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1490 {
1491 struct hci_cb *cb;
1492 __u8 encrypt;
1493
1494 if (conn->state == BT_CONFIG) {
1495 if (!status)
1496 conn->state = BT_CONNECTED;
1497
1498 hci_connect_cfm(conn, status);
1499 hci_conn_drop(conn);
1500 return;
1501 }
1502
1503 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1504 encrypt = 0x00;
1505 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1506 encrypt = 0x02;
1507 else
1508 encrypt = 0x01;
1509
1510 if (!status) {
1511 if (conn->sec_level == BT_SECURITY_SDP)
1512 conn->sec_level = BT_SECURITY_LOW;
1513
1514 if (conn->pending_sec_level > conn->sec_level)
1515 conn->sec_level = conn->pending_sec_level;
1516 }
1517
1518 mutex_lock(&hci_cb_list_lock);
1519 list_for_each_entry(cb, &hci_cb_list, list) {
1520 if (cb->security_cfm)
1521 cb->security_cfm(conn, status, encrypt);
1522 }
1523 mutex_unlock(&hci_cb_list_lock);
1524
1525 if (conn->security_cfm_cb)
1526 conn->security_cfm_cb(conn, status);
1527 }
1528
hci_key_change_cfm(struct hci_conn * conn,__u8 status)1529 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1530 {
1531 struct hci_cb *cb;
1532
1533 mutex_lock(&hci_cb_list_lock);
1534 list_for_each_entry(cb, &hci_cb_list, list) {
1535 if (cb->key_change_cfm)
1536 cb->key_change_cfm(conn, status);
1537 }
1538 mutex_unlock(&hci_cb_list_lock);
1539 }
1540
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)1541 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1542 __u8 role)
1543 {
1544 struct hci_cb *cb;
1545
1546 mutex_lock(&hci_cb_list_lock);
1547 list_for_each_entry(cb, &hci_cb_list, list) {
1548 if (cb->role_switch_cfm)
1549 cb->role_switch_cfm(conn, status, role);
1550 }
1551 mutex_unlock(&hci_cb_list_lock);
1552 }
1553
eir_get_data(u8 * eir,size_t eir_len,u8 type,size_t * data_len)1554 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1555 size_t *data_len)
1556 {
1557 size_t parsed = 0;
1558
1559 if (eir_len < 2)
1560 return NULL;
1561
1562 while (parsed < eir_len - 1) {
1563 u8 field_len = eir[0];
1564
1565 if (field_len == 0)
1566 break;
1567
1568 parsed += field_len + 1;
1569
1570 if (parsed > eir_len)
1571 break;
1572
1573 if (eir[1] != type) {
1574 eir += field_len + 1;
1575 continue;
1576 }
1577
1578 /* Zero length data */
1579 if (field_len == 1)
1580 return NULL;
1581
1582 if (data_len)
1583 *data_len = field_len - 1;
1584
1585 return &eir[2];
1586 }
1587
1588 return NULL;
1589 }
1590
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)1591 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1592 {
1593 if (addr_type != ADDR_LE_DEV_RANDOM)
1594 return false;
1595
1596 if ((bdaddr->b[5] & 0xc0) == 0x40)
1597 return true;
1598
1599 return false;
1600 }
1601
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)1602 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1603 {
1604 if (addr_type == ADDR_LE_DEV_PUBLIC)
1605 return true;
1606
1607 /* Check for Random Static address type */
1608 if ((addr->b[5] & 0xc0) == 0xc0)
1609 return true;
1610
1611 return false;
1612 }
1613
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)1614 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1615 bdaddr_t *bdaddr, u8 addr_type)
1616 {
1617 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1618 return NULL;
1619
1620 return hci_find_irk_by_rpa(hdev, bdaddr);
1621 }
1622
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)1623 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1624 u16 to_multiplier)
1625 {
1626 u16 max_latency;
1627
1628 if (min > max || min < 6 || max > 3200)
1629 return -EINVAL;
1630
1631 if (to_multiplier < 10 || to_multiplier > 3200)
1632 return -EINVAL;
1633
1634 if (max >= to_multiplier * 8)
1635 return -EINVAL;
1636
1637 max_latency = (to_multiplier * 4 / max) - 1;
1638 if (latency > 499 || latency > max_latency)
1639 return -EINVAL;
1640
1641 return 0;
1642 }
1643
1644 int hci_register_cb(struct hci_cb *hcb);
1645 int hci_unregister_cb(struct hci_cb *hcb);
1646
1647 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1648 const void *param, u32 timeout);
1649 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1650 const void *param, u8 event, u32 timeout);
1651 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1652 const void *param);
1653
1654 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1655 const void *param);
1656 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1657 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1658
1659 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1660
1661 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1662 const void *param, u32 timeout);
1663
1664 u32 hci_conn_get_phy(struct hci_conn *conn);
1665
1666 /* ----- HCI Sockets ----- */
1667 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1668 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1669 int flag, struct sock *skip_sk);
1670 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1671 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1672 void *data, u16 data_len, ktime_t tstamp,
1673 int flag, struct sock *skip_sk);
1674
1675 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1676
1677 #define HCI_MGMT_VAR_LEN BIT(0)
1678 #define HCI_MGMT_NO_HDEV BIT(1)
1679 #define HCI_MGMT_UNTRUSTED BIT(2)
1680 #define HCI_MGMT_UNCONFIGURED BIT(3)
1681 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
1682
1683 struct hci_mgmt_handler {
1684 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1685 u16 data_len);
1686 size_t data_len;
1687 unsigned long flags;
1688 };
1689
1690 struct hci_mgmt_chan {
1691 struct list_head list;
1692 unsigned short channel;
1693 size_t handler_count;
1694 const struct hci_mgmt_handler *handlers;
1695 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1696 };
1697
1698 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1699 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1700
1701 /* Management interface */
1702 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1703 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1704 BIT(BDADDR_LE_RANDOM))
1705 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1706 BIT(BDADDR_LE_PUBLIC) | \
1707 BIT(BDADDR_LE_RANDOM))
1708
1709 /* These LE scan and inquiry parameters were chosen according to LE General
1710 * Discovery Procedure specification.
1711 */
1712 #define DISCOV_LE_SCAN_WIN 0x12
1713 #define DISCOV_LE_SCAN_INT 0x12
1714 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1715 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1716 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1717 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1718 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1719 #define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
1720 #define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
1721
1722 void mgmt_fill_version_info(void *ver);
1723 int mgmt_new_settings(struct hci_dev *hdev);
1724 void mgmt_index_added(struct hci_dev *hdev);
1725 void mgmt_index_removed(struct hci_dev *hdev);
1726 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1727 void mgmt_power_on(struct hci_dev *hdev, int err);
1728 void __mgmt_power_off(struct hci_dev *hdev);
1729 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1730 bool persistent);
1731 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1732 u8 *name, u8 name_len);
1733 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1734 u8 link_type, u8 addr_type, u8 reason,
1735 bool mgmt_connected);
1736 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1737 u8 link_type, u8 addr_type, u8 status);
1738 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1739 u8 addr_type, u8 status);
1740 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1741 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1742 u8 status);
1743 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1744 u8 status);
1745 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1746 u8 link_type, u8 addr_type, u32 value,
1747 u8 confirm_hint);
1748 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1749 u8 link_type, u8 addr_type, u8 status);
1750 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1751 u8 link_type, u8 addr_type, u8 status);
1752 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1753 u8 link_type, u8 addr_type);
1754 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1755 u8 link_type, u8 addr_type, u8 status);
1756 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1757 u8 link_type, u8 addr_type, u8 status);
1758 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1759 u8 link_type, u8 addr_type, u32 passkey,
1760 u8 entered);
1761 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1762 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1763 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1764 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1765 u8 status);
1766 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1767 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1768 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1769 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1770 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1771 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1772 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1773 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1774 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1775 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1776 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1777 u8 addr_type);
1778 bool mgmt_powering_down(struct hci_dev *hdev);
1779 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1780 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1781 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1782 bool persistent);
1783 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1784 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1785 u16 max_interval, u16 latency, u16 timeout);
1786 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1787 bool mgmt_get_connectable(struct hci_dev *hdev);
1788 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1789 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1790 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1791 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1792 u8 instance);
1793 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1794 u8 instance);
1795 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1796
1797 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1798 u16 to_multiplier);
1799 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1800 __u8 ltk[16], __u8 key_size);
1801
1802 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1803 u8 *bdaddr_type);
1804
1805 #define SCO_AIRMODE_MASK 0x0003
1806 #define SCO_AIRMODE_CVSD 0x0000
1807 #define SCO_AIRMODE_TRANSP 0x0003
1808
1809 #endif /* __HCI_CORE_H */
1810