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 #include <linux/srcu.h>
32
33 #include <net/bluetooth/hci.h>
34 #include <net/bluetooth/hci_sock.h>
35
36 /* HCI priority */
37 #define HCI_PRIO_MAX 7
38
39 /* HCI maximum id value */
40 #define HCI_MAX_ID 10000
41
42 /* HCI Core structures */
43 struct inquiry_data {
44 bdaddr_t bdaddr;
45 __u8 pscan_rep_mode;
46 __u8 pscan_period_mode;
47 __u8 pscan_mode;
48 __u8 dev_class[3];
49 __le16 clock_offset;
50 __s8 rssi;
51 __u8 ssp_mode;
52 };
53
54 struct inquiry_entry {
55 struct list_head all; /* inq_cache.all */
56 struct list_head list; /* unknown or resolve */
57 enum {
58 NAME_NOT_KNOWN,
59 NAME_NEEDED,
60 NAME_PENDING,
61 NAME_KNOWN,
62 } name_state;
63 __u32 timestamp;
64 struct inquiry_data data;
65 };
66
67 struct discovery_state {
68 int type;
69 enum {
70 DISCOVERY_STOPPED,
71 DISCOVERY_STARTING,
72 DISCOVERY_FINDING,
73 DISCOVERY_RESOLVING,
74 DISCOVERY_STOPPING,
75 } state;
76 struct list_head all; /* All devices found during inquiry */
77 struct list_head unknown; /* Name state not known */
78 struct list_head resolve; /* Name needs to be resolved */
79 __u32 timestamp;
80 bdaddr_t last_adv_addr;
81 u8 last_adv_addr_type;
82 s8 last_adv_rssi;
83 u32 last_adv_flags;
84 u8 last_adv_data[HCI_MAX_AD_LENGTH];
85 u8 last_adv_data_len;
86 bool report_invalid_rssi;
87 bool result_filtering;
88 bool limited;
89 s8 rssi;
90 u16 uuid_count;
91 u8 (*uuids)[16];
92 unsigned long scan_start;
93 unsigned long scan_duration;
94 };
95
96 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
97
98 enum suspend_tasks {
99 SUSPEND_PAUSE_DISCOVERY,
100 SUSPEND_UNPAUSE_DISCOVERY,
101
102 SUSPEND_PAUSE_ADVERTISING,
103 SUSPEND_UNPAUSE_ADVERTISING,
104
105 SUSPEND_SCAN_DISABLE,
106 SUSPEND_SCAN_ENABLE,
107 SUSPEND_DISCONNECTING,
108
109 SUSPEND_POWERING_DOWN,
110
111 SUSPEND_PREPARE_NOTIFIER,
112 __SUSPEND_NUM_TASKS
113 };
114
115 enum suspended_state {
116 BT_RUNNING = 0,
117 BT_SUSPEND_DISCONNECT,
118 BT_SUSPEND_CONFIGURE_WAKE,
119 };
120
121 struct hci_conn_hash {
122 struct list_head list;
123 unsigned int acl_num;
124 unsigned int amp_num;
125 unsigned int sco_num;
126 unsigned int le_num;
127 unsigned int le_num_slave;
128 };
129
130 struct bdaddr_list {
131 struct list_head list;
132 bdaddr_t bdaddr;
133 u8 bdaddr_type;
134 };
135
136 struct bdaddr_list_with_irk {
137 struct list_head list;
138 bdaddr_t bdaddr;
139 u8 bdaddr_type;
140 u8 peer_irk[16];
141 u8 local_irk[16];
142 };
143
144 struct bdaddr_list_with_flags {
145 struct list_head list;
146 bdaddr_t bdaddr;
147 u8 bdaddr_type;
148 u32 current_flags;
149 };
150
151 enum hci_conn_flags {
152 HCI_CONN_FLAG_REMOTE_WAKEUP,
153 HCI_CONN_FLAG_MAX
154 };
155
156 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
157
158 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
159 static_assert(HCI_CONN_FLAG_MAX < 32);
160
161 struct bt_uuid {
162 struct list_head list;
163 u8 uuid[16];
164 u8 size;
165 u8 svc_hint;
166 };
167
168 struct blocked_key {
169 struct list_head list;
170 struct rcu_head rcu;
171 u8 type;
172 u8 val[16];
173 };
174
175 struct smp_csrk {
176 bdaddr_t bdaddr;
177 u8 bdaddr_type;
178 u8 link_type;
179 u8 type;
180 u8 val[16];
181 };
182
183 struct smp_ltk {
184 struct list_head list;
185 struct rcu_head rcu;
186 bdaddr_t bdaddr;
187 u8 bdaddr_type;
188 u8 link_type;
189 u8 authenticated;
190 u8 type;
191 u8 enc_size;
192 __le16 ediv;
193 __le64 rand;
194 u8 val[16];
195 };
196
197 struct smp_irk {
198 struct list_head list;
199 struct rcu_head rcu;
200 bdaddr_t rpa;
201 bdaddr_t bdaddr;
202 u8 addr_type;
203 u8 link_type;
204 u8 val[16];
205 };
206
207 struct link_key {
208 struct list_head list;
209 struct rcu_head rcu;
210 bdaddr_t bdaddr;
211 u8 bdaddr_type;
212 u8 link_type;
213 u8 type;
214 u8 val[HCI_LINK_KEY_SIZE];
215 u8 pin_len;
216 };
217
218 struct oob_data {
219 struct list_head list;
220 bdaddr_t bdaddr;
221 u8 bdaddr_type;
222 u8 present;
223 u8 hash192[16];
224 u8 rand192[16];
225 u8 hash256[16];
226 u8 rand256[16];
227 };
228
229 struct adv_info {
230 struct list_head list;
231 bool pending;
232 __u8 instance;
233 __u32 flags;
234 __u16 timeout;
235 __u16 remaining_time;
236 __u16 duration;
237 __u16 adv_data_len;
238 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
239 __u16 scan_rsp_len;
240 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
241 __s8 tx_power;
242 bdaddr_t random_addr;
243 bool rpa_expired;
244 struct delayed_work rpa_expired_cb;
245 };
246
247 #define HCI_MAX_ADV_INSTANCES 5
248 #define HCI_DEFAULT_ADV_DURATION 2
249
250 struct adv_pattern {
251 struct list_head list;
252 __u8 ad_type;
253 __u8 offset;
254 __u8 length;
255 __u8 value[HCI_MAX_AD_LENGTH];
256 };
257
258 struct adv_monitor {
259 struct list_head patterns;
260 bool active;
261 __u16 handle;
262 };
263
264 #define HCI_MIN_ADV_MONITOR_HANDLE 1
265 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
266 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
267
268 #define HCI_MAX_SHORT_NAME_LENGTH 10
269
270 /* Min encryption key size to match with SMP */
271 #define HCI_MIN_ENC_KEY_SIZE 7
272
273 /* Default LE RPA expiry time, 15 minutes */
274 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
275
276 /* Default min/max age of connection information (1s/3s) */
277 #define DEFAULT_CONN_INFO_MIN_AGE 1000
278 #define DEFAULT_CONN_INFO_MAX_AGE 3000
279 /* Default authenticated payload timeout 30s */
280 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
281
282 struct amp_assoc {
283 __u16 len;
284 __u16 offset;
285 __u16 rem_len;
286 __u16 len_so_far;
287 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
288 };
289
290 #define HCI_MAX_PAGES 3
291
292 struct hci_dev {
293 struct list_head list;
294 struct srcu_struct srcu;
295 struct mutex lock;
296
297 const char *name;
298 unsigned long flags;
299 __u16 id;
300 __u8 bus;
301 __u8 dev_type;
302 bdaddr_t bdaddr;
303 bdaddr_t setup_addr;
304 bdaddr_t public_addr;
305 bdaddr_t random_addr;
306 bdaddr_t static_addr;
307 __u8 adv_addr_type;
308 __u8 dev_name[HCI_MAX_NAME_LENGTH];
309 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
310 __u8 eir[HCI_MAX_EIR_LENGTH];
311 __u16 appearance;
312 __u8 dev_class[3];
313 __u8 major_class;
314 __u8 minor_class;
315 __u8 max_page;
316 __u8 features[HCI_MAX_PAGES][8];
317 __u8 le_features[8];
318 __u8 le_accept_list_size;
319 __u8 le_resolv_list_size;
320 __u8 le_num_of_adv_sets;
321 __u8 le_states[8];
322 __u8 commands[64];
323 __u8 hci_ver;
324 __u16 hci_rev;
325 __u8 lmp_ver;
326 __u16 manufacturer;
327 __u16 lmp_subver;
328 __u16 voice_setting;
329 __u8 num_iac;
330 __u8 stored_max_keys;
331 __u8 stored_num_keys;
332 __u8 io_capability;
333 __s8 inq_tx_power;
334 __u8 err_data_reporting;
335 __u16 page_scan_interval;
336 __u16 page_scan_window;
337 __u8 page_scan_type;
338 __u8 le_adv_channel_map;
339 __u16 le_adv_min_interval;
340 __u16 le_adv_max_interval;
341 __u8 le_scan_type;
342 __u16 le_scan_interval;
343 __u16 le_scan_window;
344 __u16 le_scan_int_suspend;
345 __u16 le_scan_window_suspend;
346 __u16 le_scan_int_discovery;
347 __u16 le_scan_window_discovery;
348 __u16 le_scan_int_adv_monitor;
349 __u16 le_scan_window_adv_monitor;
350 __u16 le_scan_int_connect;
351 __u16 le_scan_window_connect;
352 __u16 le_conn_min_interval;
353 __u16 le_conn_max_interval;
354 __u16 le_conn_latency;
355 __u16 le_supv_timeout;
356 __u16 le_def_tx_len;
357 __u16 le_def_tx_time;
358 __u16 le_max_tx_len;
359 __u16 le_max_tx_time;
360 __u16 le_max_rx_len;
361 __u16 le_max_rx_time;
362 __u8 le_max_key_size;
363 __u8 le_min_key_size;
364 __u16 discov_interleaved_timeout;
365 __u16 conn_info_min_age;
366 __u16 conn_info_max_age;
367 __u16 auth_payload_timeout;
368 __u8 min_enc_key_size;
369 __u8 max_enc_key_size;
370 __u8 pairing_opts;
371 __u8 ssp_debug_mode;
372 __u8 hw_error_code;
373 __u32 clock;
374 __u16 advmon_allowlist_duration;
375 __u16 advmon_no_filter_duration;
376
377 __u16 devid_source;
378 __u16 devid_vendor;
379 __u16 devid_product;
380 __u16 devid_version;
381
382 __u8 def_page_scan_type;
383 __u16 def_page_scan_int;
384 __u16 def_page_scan_window;
385 __u8 def_inq_scan_type;
386 __u16 def_inq_scan_int;
387 __u16 def_inq_scan_window;
388 __u16 def_br_lsto;
389 __u16 def_page_timeout;
390 __u16 def_multi_adv_rotation_duration;
391 __u16 def_le_autoconnect_timeout;
392
393 __u16 pkt_type;
394 __u16 esco_type;
395 __u16 link_policy;
396 __u16 link_mode;
397
398 __u32 idle_timeout;
399 __u16 sniff_min_interval;
400 __u16 sniff_max_interval;
401
402 __u8 amp_status;
403 __u32 amp_total_bw;
404 __u32 amp_max_bw;
405 __u32 amp_min_latency;
406 __u32 amp_max_pdu;
407 __u8 amp_type;
408 __u16 amp_pal_cap;
409 __u16 amp_assoc_size;
410 __u32 amp_max_flush_to;
411 __u32 amp_be_flush_to;
412
413 struct amp_assoc loc_assoc;
414
415 __u8 flow_ctl_mode;
416
417 unsigned int auto_accept_delay;
418
419 unsigned long quirks;
420
421 atomic_t cmd_cnt;
422 unsigned int acl_cnt;
423 unsigned int sco_cnt;
424 unsigned int le_cnt;
425
426 unsigned int acl_mtu;
427 unsigned int sco_mtu;
428 unsigned int le_mtu;
429 unsigned int acl_pkts;
430 unsigned int sco_pkts;
431 unsigned int le_pkts;
432
433 __u16 block_len;
434 __u16 block_mtu;
435 __u16 num_blocks;
436 __u16 block_cnt;
437
438 unsigned long acl_last_tx;
439 unsigned long sco_last_tx;
440 unsigned long le_last_tx;
441
442 __u8 le_tx_def_phys;
443 __u8 le_rx_def_phys;
444
445 struct workqueue_struct *workqueue;
446 struct workqueue_struct *req_workqueue;
447
448 struct work_struct power_on;
449 struct delayed_work power_off;
450 struct work_struct error_reset;
451
452 __u16 discov_timeout;
453 struct delayed_work discov_off;
454
455 struct delayed_work service_cache;
456
457 struct delayed_work cmd_timer;
458
459 struct work_struct rx_work;
460 struct work_struct cmd_work;
461 struct work_struct tx_work;
462
463 struct work_struct discov_update;
464 struct work_struct bg_scan_update;
465 struct work_struct scan_update;
466 struct work_struct connectable_update;
467 struct work_struct discoverable_update;
468 struct delayed_work le_scan_disable;
469 struct delayed_work le_scan_restart;
470
471 struct sk_buff_head rx_q;
472 struct sk_buff_head raw_q;
473 struct sk_buff_head cmd_q;
474
475 struct sk_buff *sent_cmd;
476
477 struct mutex req_lock;
478 wait_queue_head_t req_wait_q;
479 __u32 req_status;
480 __u32 req_result;
481 struct sk_buff *req_skb;
482
483 void *smp_data;
484 void *smp_bredr_data;
485
486 struct discovery_state discovery;
487
488 int discovery_old_state;
489 bool discovery_paused;
490 int advertising_old_state;
491 bool advertising_paused;
492
493 struct notifier_block suspend_notifier;
494 struct work_struct suspend_prepare;
495 enum suspended_state suspend_state_next;
496 enum suspended_state suspend_state;
497 bool scanning_paused;
498 bool suspended;
499 u8 wake_reason;
500 bdaddr_t wake_addr;
501 u8 wake_addr_type;
502
503 wait_queue_head_t suspend_wait_q;
504 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
505
506 struct hci_conn_hash conn_hash;
507
508 struct mutex mgmt_pending_lock;
509 struct list_head mgmt_pending;
510 struct list_head reject_list;
511 struct list_head accept_list;
512 struct list_head uuids;
513 struct list_head link_keys;
514 struct list_head long_term_keys;
515 struct list_head identity_resolving_keys;
516 struct list_head remote_oob_data;
517 struct list_head le_accept_list;
518 struct list_head le_resolv_list;
519 struct list_head le_conn_params;
520 struct list_head pend_le_conns;
521 struct list_head pend_le_reports;
522 struct list_head blocked_keys;
523
524 struct hci_dev_stats stat;
525
526 atomic_t promisc;
527
528 const char *hw_info;
529 const char *fw_info;
530 struct dentry *debugfs;
531
532 struct device dev;
533
534 struct rfkill *rfkill;
535
536 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
537
538 __s8 adv_tx_power;
539 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
540 __u8 adv_data_len;
541 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
542 __u8 scan_rsp_data_len;
543
544 struct list_head adv_instances;
545 unsigned int adv_instance_cnt;
546 __u8 cur_adv_instance;
547 __u16 adv_instance_timeout;
548 struct delayed_work adv_instance_expire;
549
550 struct idr adv_monitors_idr;
551 unsigned int adv_monitors_cnt;
552
553 __u8 irk[16];
554 __u32 rpa_timeout;
555 struct delayed_work rpa_expired;
556 bdaddr_t rpa;
557
558 enum {
559 INTERLEAVE_SCAN_NONE,
560 INTERLEAVE_SCAN_NO_FILTER,
561 INTERLEAVE_SCAN_ALLOWLIST
562 } interleave_scan_state;
563
564 struct delayed_work interleave_scan;
565
566 #if IS_ENABLED(CONFIG_BT_LEDS)
567 struct led_trigger *power_led;
568 #endif
569
570 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
571 __u16 msft_opcode;
572 void *msft_data;
573 #endif
574
575 int (*open)(struct hci_dev *hdev);
576 int (*close)(struct hci_dev *hdev);
577 int (*flush)(struct hci_dev *hdev);
578 int (*setup)(struct hci_dev *hdev);
579 int (*shutdown)(struct hci_dev *hdev);
580 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
581 void (*notify)(struct hci_dev *hdev, unsigned int evt);
582 void (*hw_error)(struct hci_dev *hdev, u8 code);
583 int (*post_init)(struct hci_dev *hdev);
584 int (*set_diag)(struct hci_dev *hdev, bool enable);
585 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
586 void (*cmd_timeout)(struct hci_dev *hdev);
587 bool (*prevent_wake)(struct hci_dev *hdev);
588 };
589
590 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
591
592 enum conn_reasons {
593 CONN_REASON_PAIR_DEVICE,
594 CONN_REASON_L2CAP_CHAN,
595 CONN_REASON_SCO_CONNECT,
596 };
597
598 struct hci_conn {
599 struct list_head list;
600
601 atomic_t refcnt;
602
603 bdaddr_t dst;
604 __u8 dst_type;
605 bdaddr_t src;
606 __u8 src_type;
607 bdaddr_t init_addr;
608 __u8 init_addr_type;
609 bdaddr_t resp_addr;
610 __u8 resp_addr_type;
611 __u16 handle;
612 __u16 state;
613 __u8 mode;
614 __u8 type;
615 __u8 role;
616 bool out;
617 __u8 attempt;
618 __u8 dev_class[3];
619 __u8 features[HCI_MAX_PAGES][8];
620 __u16 pkt_type;
621 __u16 link_policy;
622 __u8 key_type;
623 __u8 auth_type;
624 __u8 sec_level;
625 __u8 pending_sec_level;
626 __u8 pin_length;
627 __u8 enc_key_size;
628 __u8 io_capability;
629 __u32 passkey_notify;
630 __u8 passkey_entered;
631 __u16 disc_timeout;
632 __u16 conn_timeout;
633 __u16 setting;
634 __u16 auth_payload_timeout;
635 __u16 le_conn_min_interval;
636 __u16 le_conn_max_interval;
637 __u16 le_conn_interval;
638 __u16 le_conn_latency;
639 __u16 le_supv_timeout;
640 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
641 __u8 le_adv_data_len;
642 __u8 le_tx_phy;
643 __u8 le_rx_phy;
644 __s8 rssi;
645 __s8 tx_power;
646 __s8 max_tx_power;
647 unsigned long flags;
648
649 enum conn_reasons conn_reason;
650
651 __u32 clock;
652 __u16 clock_accuracy;
653
654 unsigned long conn_info_timestamp;
655
656 __u8 remote_cap;
657 __u8 remote_auth;
658 __u8 remote_id;
659
660 unsigned int sent;
661
662 struct sk_buff_head data_q;
663 struct list_head chan_list;
664
665 struct delayed_work disc_work;
666 struct delayed_work auto_accept_work;
667 struct delayed_work idle_work;
668 struct delayed_work le_conn_timeout;
669 struct work_struct le_scan_cleanup;
670
671 struct device dev;
672 struct dentry *debugfs;
673
674 struct hci_dev *hdev;
675 void *l2cap_data;
676 void *sco_data;
677 struct amp_mgr *amp_mgr;
678
679 struct hci_conn *link;
680
681 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
682 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
683 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
684 };
685
686 struct hci_chan {
687 struct list_head list;
688 __u16 handle;
689 struct hci_conn *conn;
690 struct sk_buff_head data_q;
691 unsigned int sent;
692 __u8 state;
693 bool amp;
694 };
695
696 struct hci_conn_params {
697 struct list_head list;
698 struct list_head action;
699
700 bdaddr_t addr;
701 u8 addr_type;
702
703 u16 conn_min_interval;
704 u16 conn_max_interval;
705 u16 conn_latency;
706 u16 supervision_timeout;
707
708 enum {
709 HCI_AUTO_CONN_DISABLED,
710 HCI_AUTO_CONN_REPORT,
711 HCI_AUTO_CONN_DIRECT,
712 HCI_AUTO_CONN_ALWAYS,
713 HCI_AUTO_CONN_LINK_LOSS,
714 HCI_AUTO_CONN_EXPLICIT,
715 } auto_connect;
716
717 struct hci_conn *conn;
718 bool explicit_connect;
719 u32 current_flags;
720 };
721
722 extern struct list_head hci_dev_list;
723 extern struct list_head hci_cb_list;
724 extern rwlock_t hci_dev_list_lock;
725 extern struct mutex hci_cb_list_lock;
726
727 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
728 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
729 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
730 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
731 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
732 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
733 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
734
735 #define hci_dev_clear_volatile_flags(hdev) \
736 do { \
737 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
738 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
739 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
740 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
741 } while (0)
742
743 /* ----- HCI interface to upper protocols ----- */
744 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
745 int l2cap_disconn_ind(struct hci_conn *hcon);
746 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
747
748 #if IS_ENABLED(CONFIG_BT_BREDR)
749 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
750 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
751 #else
sco_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 * flags)752 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
753 __u8 *flags)
754 {
755 return 0;
756 }
757
sco_recv_scodata(struct hci_conn * hcon,struct sk_buff * skb)758 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
759 {
760 }
761 #endif
762
763 /* ----- Inquiry cache ----- */
764 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
765 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
766
discovery_init(struct hci_dev * hdev)767 static inline void discovery_init(struct hci_dev *hdev)
768 {
769 hdev->discovery.state = DISCOVERY_STOPPED;
770 INIT_LIST_HEAD(&hdev->discovery.all);
771 INIT_LIST_HEAD(&hdev->discovery.unknown);
772 INIT_LIST_HEAD(&hdev->discovery.resolve);
773 hdev->discovery.report_invalid_rssi = true;
774 hdev->discovery.rssi = HCI_RSSI_INVALID;
775 }
776
hci_discovery_filter_clear(struct hci_dev * hdev)777 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
778 {
779 hdev->discovery.result_filtering = false;
780 hdev->discovery.report_invalid_rssi = true;
781 hdev->discovery.rssi = HCI_RSSI_INVALID;
782 hdev->discovery.uuid_count = 0;
783 kfree(hdev->discovery.uuids);
784 hdev->discovery.uuids = NULL;
785 hdev->discovery.scan_start = 0;
786 hdev->discovery.scan_duration = 0;
787 }
788
789 bool hci_discovery_active(struct hci_dev *hdev);
790
791 void hci_discovery_set_state(struct hci_dev *hdev, int state);
792
inquiry_cache_empty(struct hci_dev * hdev)793 static inline int inquiry_cache_empty(struct hci_dev *hdev)
794 {
795 return list_empty(&hdev->discovery.all);
796 }
797
inquiry_cache_age(struct hci_dev * hdev)798 static inline long inquiry_cache_age(struct hci_dev *hdev)
799 {
800 struct discovery_state *c = &hdev->discovery;
801 return jiffies - c->timestamp;
802 }
803
inquiry_entry_age(struct inquiry_entry * e)804 static inline long inquiry_entry_age(struct inquiry_entry *e)
805 {
806 return jiffies - e->timestamp;
807 }
808
809 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
810 bdaddr_t *bdaddr);
811 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
812 bdaddr_t *bdaddr);
813 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
814 bdaddr_t *bdaddr,
815 int state);
816 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
817 struct inquiry_entry *ie);
818 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
819 bool name_known);
820 void hci_inquiry_cache_flush(struct hci_dev *hdev);
821
822 /* ----- HCI Connections ----- */
823 enum {
824 HCI_CONN_AUTH_PEND,
825 HCI_CONN_ENCRYPT_PEND,
826 HCI_CONN_RSWITCH_PEND,
827 HCI_CONN_MODE_CHANGE_PEND,
828 HCI_CONN_SCO_SETUP_PEND,
829 HCI_CONN_MGMT_CONNECTED,
830 HCI_CONN_SSP_ENABLED,
831 HCI_CONN_SC_ENABLED,
832 HCI_CONN_AES_CCM,
833 HCI_CONN_POWER_SAVE,
834 HCI_CONN_FLUSH_KEY,
835 HCI_CONN_ENCRYPT,
836 HCI_CONN_AUTH,
837 HCI_CONN_SECURE,
838 HCI_CONN_FIPS,
839 HCI_CONN_STK_ENCRYPT,
840 HCI_CONN_AUTH_INITIATOR,
841 HCI_CONN_DROP,
842 HCI_CONN_PARAM_REMOVAL_PEND,
843 HCI_CONN_NEW_LINK_KEY,
844 HCI_CONN_SCANNING,
845 HCI_CONN_AUTH_FAILURE,
846 };
847
hci_conn_ssp_enabled(struct hci_conn * conn)848 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
849 {
850 struct hci_dev *hdev = conn->hdev;
851 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
852 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
853 }
854
hci_conn_sc_enabled(struct hci_conn * conn)855 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
856 {
857 struct hci_dev *hdev = conn->hdev;
858 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
859 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
860 }
861
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)862 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
863 {
864 struct hci_conn_hash *h = &hdev->conn_hash;
865 list_add_rcu(&c->list, &h->list);
866 switch (c->type) {
867 case ACL_LINK:
868 h->acl_num++;
869 break;
870 case AMP_LINK:
871 h->amp_num++;
872 break;
873 case LE_LINK:
874 h->le_num++;
875 if (c->role == HCI_ROLE_SLAVE)
876 h->le_num_slave++;
877 break;
878 case SCO_LINK:
879 case ESCO_LINK:
880 h->sco_num++;
881 break;
882 }
883 }
884
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)885 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
886 {
887 struct hci_conn_hash *h = &hdev->conn_hash;
888
889 list_del_rcu(&c->list);
890 synchronize_rcu();
891
892 switch (c->type) {
893 case ACL_LINK:
894 h->acl_num--;
895 break;
896 case AMP_LINK:
897 h->amp_num--;
898 break;
899 case LE_LINK:
900 h->le_num--;
901 if (c->role == HCI_ROLE_SLAVE)
902 h->le_num_slave--;
903 break;
904 case SCO_LINK:
905 case ESCO_LINK:
906 h->sco_num--;
907 break;
908 }
909 }
910
hci_conn_num(struct hci_dev * hdev,__u8 type)911 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
912 {
913 struct hci_conn_hash *h = &hdev->conn_hash;
914 switch (type) {
915 case ACL_LINK:
916 return h->acl_num;
917 case AMP_LINK:
918 return h->amp_num;
919 case LE_LINK:
920 return h->le_num;
921 case SCO_LINK:
922 case ESCO_LINK:
923 return h->sco_num;
924 default:
925 return 0;
926 }
927 }
928
hci_conn_count(struct hci_dev * hdev)929 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
930 {
931 struct hci_conn_hash *c = &hdev->conn_hash;
932
933 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
934 }
935
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)936 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
937 {
938 struct hci_conn_hash *h = &hdev->conn_hash;
939 struct hci_conn *c;
940 __u8 type = INVALID_LINK;
941
942 rcu_read_lock();
943
944 list_for_each_entry_rcu(c, &h->list, list) {
945 if (c->handle == handle) {
946 type = c->type;
947 break;
948 }
949 }
950
951 rcu_read_unlock();
952
953 return type;
954 }
955
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)956 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
957 __u16 handle)
958 {
959 struct hci_conn_hash *h = &hdev->conn_hash;
960 struct hci_conn *c;
961
962 rcu_read_lock();
963
964 list_for_each_entry_rcu(c, &h->list, list) {
965 if (c->handle == handle) {
966 rcu_read_unlock();
967 return c;
968 }
969 }
970 rcu_read_unlock();
971
972 return NULL;
973 }
974
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)975 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
976 __u8 type, bdaddr_t *ba)
977 {
978 struct hci_conn_hash *h = &hdev->conn_hash;
979 struct hci_conn *c;
980
981 rcu_read_lock();
982
983 list_for_each_entry_rcu(c, &h->list, list) {
984 if (c->type == type && !bacmp(&c->dst, ba)) {
985 rcu_read_unlock();
986 return c;
987 }
988 }
989
990 rcu_read_unlock();
991
992 return NULL;
993 }
994
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)995 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
996 bdaddr_t *ba,
997 __u8 ba_type)
998 {
999 struct hci_conn_hash *h = &hdev->conn_hash;
1000 struct hci_conn *c;
1001
1002 rcu_read_lock();
1003
1004 list_for_each_entry_rcu(c, &h->list, list) {
1005 if (c->type != LE_LINK)
1006 continue;
1007
1008 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1009 rcu_read_unlock();
1010 return c;
1011 }
1012 }
1013
1014 rcu_read_unlock();
1015
1016 return NULL;
1017 }
1018
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1019 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1020 __u8 type, __u16 state)
1021 {
1022 struct hci_conn_hash *h = &hdev->conn_hash;
1023 struct hci_conn *c;
1024
1025 rcu_read_lock();
1026
1027 list_for_each_entry_rcu(c, &h->list, list) {
1028 if (c->type == type && c->state == state) {
1029 rcu_read_unlock();
1030 return c;
1031 }
1032 }
1033
1034 rcu_read_unlock();
1035
1036 return NULL;
1037 }
1038
hci_lookup_le_connect(struct hci_dev * hdev)1039 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1040 {
1041 struct hci_conn_hash *h = &hdev->conn_hash;
1042 struct hci_conn *c;
1043
1044 rcu_read_lock();
1045
1046 list_for_each_entry_rcu(c, &h->list, list) {
1047 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1048 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1049 rcu_read_unlock();
1050 return c;
1051 }
1052 }
1053
1054 rcu_read_unlock();
1055
1056 return NULL;
1057 }
1058
1059 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1060 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1061 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1062
1063 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1064 u8 role);
1065 int hci_conn_del(struct hci_conn *conn);
1066 void hci_conn_hash_flush(struct hci_dev *hdev);
1067 void hci_conn_check_pending(struct hci_dev *hdev);
1068
1069 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1070 void hci_chan_del(struct hci_chan *chan);
1071 void hci_chan_list_flush(struct hci_conn *conn);
1072 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1073
1074 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1075 u8 dst_type, u8 sec_level,
1076 u16 conn_timeout,
1077 enum conn_reasons conn_reason);
1078 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1079 u8 dst_type, u8 sec_level, u16 conn_timeout,
1080 u8 role, bdaddr_t *direct_rpa);
1081 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1082 u8 sec_level, u8 auth_type,
1083 enum conn_reasons conn_reason);
1084 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1085 __u16 setting);
1086 int hci_conn_check_link_mode(struct hci_conn *conn);
1087 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1088 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1089 bool initiator);
1090 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1091
1092 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1093
1094 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1095
1096 /*
1097 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1098 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1099 * working or anything else. They just guarantee that the object is available
1100 * and can be dereferenced. So you can use its locks, local variables and any
1101 * other constant data.
1102 * Before accessing runtime data, you _must_ lock the object and then check that
1103 * it is still running. As soon as you release the locks, the connection might
1104 * get dropped, though.
1105 *
1106 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1107 * how long the underlying connection is held. So every channel that runs on the
1108 * hci_conn object calls this to prevent the connection from disappearing. As
1109 * long as you hold a device, you must also guarantee that you have a valid
1110 * reference to the device via hci_conn_get() (or the initial reference from
1111 * hci_conn_add()).
1112 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1113 * break because nobody cares for that. But this means, we cannot use
1114 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1115 */
1116
hci_conn_get(struct hci_conn * conn)1117 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1118 {
1119 get_device(&conn->dev);
1120 return conn;
1121 }
1122
hci_conn_put(struct hci_conn * conn)1123 static inline void hci_conn_put(struct hci_conn *conn)
1124 {
1125 put_device(&conn->dev);
1126 }
1127
hci_conn_hold(struct hci_conn * conn)1128 static inline void hci_conn_hold(struct hci_conn *conn)
1129 {
1130 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1131
1132 atomic_inc(&conn->refcnt);
1133 cancel_delayed_work(&conn->disc_work);
1134 }
1135
hci_conn_drop(struct hci_conn * conn)1136 static inline void hci_conn_drop(struct hci_conn *conn)
1137 {
1138 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1139
1140 if (atomic_dec_and_test(&conn->refcnt)) {
1141 unsigned long timeo;
1142
1143 switch (conn->type) {
1144 case ACL_LINK:
1145 case LE_LINK:
1146 cancel_delayed_work(&conn->idle_work);
1147 if (conn->state == BT_CONNECTED) {
1148 timeo = conn->disc_timeout;
1149 if (!conn->out)
1150 timeo *= 2;
1151 } else {
1152 timeo = 0;
1153 }
1154 break;
1155
1156 case AMP_LINK:
1157 timeo = conn->disc_timeout;
1158 break;
1159
1160 default:
1161 timeo = 0;
1162 break;
1163 }
1164
1165 cancel_delayed_work(&conn->disc_work);
1166 queue_delayed_work(conn->hdev->workqueue,
1167 &conn->disc_work, timeo);
1168 }
1169 }
1170
1171 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1172 static inline void hci_dev_put(struct hci_dev *d)
1173 {
1174 BT_DBG("%s orig refcnt %d", d->name,
1175 kref_read(&d->dev.kobj.kref));
1176
1177 put_device(&d->dev);
1178 }
1179
hci_dev_hold(struct hci_dev * d)1180 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1181 {
1182 BT_DBG("%s orig refcnt %d", d->name,
1183 kref_read(&d->dev.kobj.kref));
1184
1185 get_device(&d->dev);
1186 return d;
1187 }
1188
1189 #define hci_dev_lock(d) mutex_lock(&d->lock)
1190 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1191
1192 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1193 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1194
hci_get_drvdata(struct hci_dev * hdev)1195 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1196 {
1197 return dev_get_drvdata(&hdev->dev);
1198 }
1199
hci_set_drvdata(struct hci_dev * hdev,void * data)1200 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1201 {
1202 dev_set_drvdata(&hdev->dev, data);
1203 }
1204
1205 struct hci_dev *hci_dev_get(int index);
1206 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1207
1208 struct hci_dev *hci_alloc_dev(void);
1209 void hci_free_dev(struct hci_dev *hdev);
1210 int hci_register_dev(struct hci_dev *hdev);
1211 void hci_unregister_dev(struct hci_dev *hdev);
1212 void hci_cleanup_dev(struct hci_dev *hdev);
1213 int hci_suspend_dev(struct hci_dev *hdev);
1214 int hci_resume_dev(struct hci_dev *hdev);
1215 int hci_reset_dev(struct hci_dev *hdev);
1216 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1217 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1218 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1219 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1220
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1221 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1222 {
1223 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1224 hdev->msft_opcode = opcode;
1225 #endif
1226 }
1227
1228 int hci_dev_open(__u16 dev);
1229 int hci_dev_close(__u16 dev);
1230 int hci_dev_do_close(struct hci_dev *hdev);
1231 int hci_dev_reset(__u16 dev);
1232 int hci_dev_reset_stat(__u16 dev);
1233 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1234 int hci_get_dev_list(void __user *arg);
1235 int hci_get_dev_info(void __user *arg);
1236 int hci_get_conn_list(void __user *arg);
1237 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1238 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1239 int hci_inquiry(void __user *arg);
1240
1241 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1242 bdaddr_t *bdaddr, u8 type);
1243 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1244 struct list_head *list, bdaddr_t *bdaddr,
1245 u8 type);
1246 struct bdaddr_list_with_flags *
1247 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1248 u8 type);
1249 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1250 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1251 u8 type, u8 *peer_irk, u8 *local_irk);
1252 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1253 u8 type, u32 flags);
1254 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1255 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1256 u8 type);
1257 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1258 u8 type);
1259 void hci_bdaddr_list_clear(struct list_head *list);
1260
1261 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1262 bdaddr_t *addr, u8 addr_type);
1263 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1264 bdaddr_t *addr, u8 addr_type);
1265 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1266 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1267
1268 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1269 bdaddr_t *addr,
1270 u8 addr_type);
1271
1272 void hci_uuids_clear(struct hci_dev *hdev);
1273
1274 void hci_link_keys_clear(struct hci_dev *hdev);
1275 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1276 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1277 bdaddr_t *bdaddr, u8 *val, u8 type,
1278 u8 pin_len, bool *persistent);
1279 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1280 u8 addr_type, u8 type, u8 authenticated,
1281 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1282 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1283 u8 addr_type, u8 role);
1284 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1285 void hci_smp_ltks_clear(struct hci_dev *hdev);
1286 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1287
1288 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1289 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1290 u8 addr_type);
1291 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1292 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1293 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1294 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1295 void hci_blocked_keys_clear(struct hci_dev *hdev);
1296 void hci_smp_irks_clear(struct hci_dev *hdev);
1297
1298 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1299
1300 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1301 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1302 bdaddr_t *bdaddr, u8 bdaddr_type);
1303 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1304 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1305 u8 *hash256, u8 *rand256);
1306 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1307 u8 bdaddr_type);
1308
1309 void hci_adv_instances_clear(struct hci_dev *hdev);
1310 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1311 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1312 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1313 u16 adv_data_len, u8 *adv_data,
1314 u16 scan_rsp_len, u8 *scan_rsp_data,
1315 u16 timeout, u16 duration);
1316 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1317 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1318
1319 void hci_adv_monitors_clear(struct hci_dev *hdev);
1320 void hci_free_adv_monitor(struct adv_monitor *monitor);
1321 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1322 int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
1323 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1324
1325 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1326
1327 void hci_init_sysfs(struct hci_dev *hdev);
1328 void hci_conn_init_sysfs(struct hci_conn *conn);
1329 void hci_conn_add_sysfs(struct hci_conn *conn);
1330 void hci_conn_del_sysfs(struct hci_conn *conn);
1331
1332 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1333
1334 /* ----- LMP capabilities ----- */
1335 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1336 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1337 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1338 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1339 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1340 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1341 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1342 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1343 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1344 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1345 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1346 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1347 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1348 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1349 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1350 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1351 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1352 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1353 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1354 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1355 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1356 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1357 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1358
1359 /* ----- Extended LMP capabilities ----- */
1360 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1361 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1362 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1363 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1364 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1365 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1366
1367 /* ----- Host capabilities ----- */
1368 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1369 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1370 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1371 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1372
1373 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1374 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1375 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1376 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1377
1378 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1379 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1380
1381 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1382 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1383
1384 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1385 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1386
1387 /* Use LL Privacy based address resolution if supported */
1388 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1389
1390 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1391 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1392 ((dev)->commands[37] & 0x40))
1393 /* Use ext create connection if command is supported */
1394 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1395
1396 /* Extended advertising support */
1397 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1398
1399 /* ----- HCI protocols ----- */
1400 #define HCI_PROTO_DEFER 0x01
1401
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1402 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1403 __u8 type, __u8 *flags)
1404 {
1405 switch (type) {
1406 case ACL_LINK:
1407 return l2cap_connect_ind(hdev, bdaddr);
1408
1409 case SCO_LINK:
1410 case ESCO_LINK:
1411 return sco_connect_ind(hdev, bdaddr, flags);
1412
1413 default:
1414 BT_ERR("unknown link type %d", type);
1415 return -EINVAL;
1416 }
1417 }
1418
hci_proto_disconn_ind(struct hci_conn * conn)1419 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1420 {
1421 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1422 return HCI_ERROR_REMOTE_USER_TERM;
1423
1424 return l2cap_disconn_ind(conn);
1425 }
1426
1427 /* ----- HCI callbacks ----- */
1428 struct hci_cb {
1429 struct list_head list;
1430
1431 char *name;
1432
1433 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1434 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1435 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1436 __u8 encrypt);
1437 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1438 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1439 };
1440
hci_connect_cfm(struct hci_conn * conn,__u8 status)1441 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1442 {
1443 struct hci_cb *cb;
1444
1445 mutex_lock(&hci_cb_list_lock);
1446 list_for_each_entry(cb, &hci_cb_list, list) {
1447 if (cb->connect_cfm)
1448 cb->connect_cfm(conn, status);
1449 }
1450 mutex_unlock(&hci_cb_list_lock);
1451
1452 if (conn->connect_cfm_cb)
1453 conn->connect_cfm_cb(conn, status);
1454 }
1455
hci_disconn_cfm(struct hci_conn * conn,__u8 reason)1456 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1457 {
1458 struct hci_cb *cb;
1459
1460 mutex_lock(&hci_cb_list_lock);
1461 list_for_each_entry(cb, &hci_cb_list, list) {
1462 if (cb->disconn_cfm)
1463 cb->disconn_cfm(conn, reason);
1464 }
1465 mutex_unlock(&hci_cb_list_lock);
1466
1467 if (conn->disconn_cfm_cb)
1468 conn->disconn_cfm_cb(conn, reason);
1469 }
1470
hci_auth_cfm(struct hci_conn * conn,__u8 status)1471 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1472 {
1473 struct hci_cb *cb;
1474 __u8 encrypt;
1475
1476 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1477 return;
1478
1479 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1480
1481 mutex_lock(&hci_cb_list_lock);
1482 list_for_each_entry(cb, &hci_cb_list, list) {
1483 if (cb->security_cfm)
1484 cb->security_cfm(conn, status, encrypt);
1485 }
1486 mutex_unlock(&hci_cb_list_lock);
1487
1488 if (conn->security_cfm_cb)
1489 conn->security_cfm_cb(conn, status);
1490 }
1491
hci_encrypt_cfm(struct hci_conn * conn,__u8 status)1492 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1493 {
1494 struct hci_cb *cb;
1495 __u8 encrypt;
1496
1497 if (conn->state == BT_CONFIG) {
1498 if (!status)
1499 conn->state = BT_CONNECTED;
1500
1501 hci_connect_cfm(conn, status);
1502 hci_conn_drop(conn);
1503 return;
1504 }
1505
1506 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1507 encrypt = 0x00;
1508 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1509 encrypt = 0x02;
1510 else
1511 encrypt = 0x01;
1512
1513 if (!status) {
1514 if (conn->sec_level == BT_SECURITY_SDP)
1515 conn->sec_level = BT_SECURITY_LOW;
1516
1517 if (conn->pending_sec_level > conn->sec_level)
1518 conn->sec_level = conn->pending_sec_level;
1519 }
1520
1521 mutex_lock(&hci_cb_list_lock);
1522 list_for_each_entry(cb, &hci_cb_list, list) {
1523 if (cb->security_cfm)
1524 cb->security_cfm(conn, status, encrypt);
1525 }
1526 mutex_unlock(&hci_cb_list_lock);
1527
1528 if (conn->security_cfm_cb)
1529 conn->security_cfm_cb(conn, status);
1530 }
1531
hci_key_change_cfm(struct hci_conn * conn,__u8 status)1532 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1533 {
1534 struct hci_cb *cb;
1535
1536 mutex_lock(&hci_cb_list_lock);
1537 list_for_each_entry(cb, &hci_cb_list, list) {
1538 if (cb->key_change_cfm)
1539 cb->key_change_cfm(conn, status);
1540 }
1541 mutex_unlock(&hci_cb_list_lock);
1542 }
1543
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)1544 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1545 __u8 role)
1546 {
1547 struct hci_cb *cb;
1548
1549 mutex_lock(&hci_cb_list_lock);
1550 list_for_each_entry(cb, &hci_cb_list, list) {
1551 if (cb->role_switch_cfm)
1552 cb->role_switch_cfm(conn, status, role);
1553 }
1554 mutex_unlock(&hci_cb_list_lock);
1555 }
1556
eir_get_data(u8 * eir,size_t eir_len,u8 type,size_t * data_len)1557 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1558 size_t *data_len)
1559 {
1560 size_t parsed = 0;
1561
1562 if (eir_len < 2)
1563 return NULL;
1564
1565 while (parsed < eir_len - 1) {
1566 u8 field_len = eir[0];
1567
1568 if (field_len == 0)
1569 break;
1570
1571 parsed += field_len + 1;
1572
1573 if (parsed > eir_len)
1574 break;
1575
1576 if (eir[1] != type) {
1577 eir += field_len + 1;
1578 continue;
1579 }
1580
1581 /* Zero length data */
1582 if (field_len == 1)
1583 return NULL;
1584
1585 if (data_len)
1586 *data_len = field_len - 1;
1587
1588 return &eir[2];
1589 }
1590
1591 return NULL;
1592 }
1593
hci_bdaddr_is_rpa(bdaddr_t * bdaddr,u8 addr_type)1594 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1595 {
1596 if (addr_type != ADDR_LE_DEV_RANDOM)
1597 return false;
1598
1599 if ((bdaddr->b[5] & 0xc0) == 0x40)
1600 return true;
1601
1602 return false;
1603 }
1604
hci_is_identity_address(bdaddr_t * addr,u8 addr_type)1605 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1606 {
1607 if (addr_type == ADDR_LE_DEV_PUBLIC)
1608 return true;
1609
1610 /* Check for Random Static address type */
1611 if ((addr->b[5] & 0xc0) == 0xc0)
1612 return true;
1613
1614 return false;
1615 }
1616
hci_get_irk(struct hci_dev * hdev,bdaddr_t * bdaddr,u8 addr_type)1617 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1618 bdaddr_t *bdaddr, u8 addr_type)
1619 {
1620 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1621 return NULL;
1622
1623 return hci_find_irk_by_rpa(hdev, bdaddr);
1624 }
1625
hci_check_conn_params(u16 min,u16 max,u16 latency,u16 to_multiplier)1626 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1627 u16 to_multiplier)
1628 {
1629 u16 max_latency;
1630
1631 if (min > max || min < 6 || max > 3200)
1632 return -EINVAL;
1633
1634 if (to_multiplier < 10 || to_multiplier > 3200)
1635 return -EINVAL;
1636
1637 if (max >= to_multiplier * 8)
1638 return -EINVAL;
1639
1640 max_latency = (to_multiplier * 4 / max) - 1;
1641 if (latency > 499 || latency > max_latency)
1642 return -EINVAL;
1643
1644 return 0;
1645 }
1646
1647 int hci_register_cb(struct hci_cb *hcb);
1648 int hci_unregister_cb(struct hci_cb *hcb);
1649
1650 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1651 const void *param, u32 timeout);
1652 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1653 const void *param, u8 event, u32 timeout);
1654 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1655 const void *param);
1656
1657 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1658 const void *param);
1659 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1660 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1661
1662 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1663
1664 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1665 const void *param, u32 timeout);
1666
1667 u32 hci_conn_get_phy(struct hci_conn *conn);
1668
1669 /* ----- HCI Sockets ----- */
1670 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1671 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1672 int flag, struct sock *skip_sk);
1673 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1674 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1675 void *data, u16 data_len, ktime_t tstamp,
1676 int flag, struct sock *skip_sk);
1677
1678 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1679
1680 #define HCI_MGMT_VAR_LEN BIT(0)
1681 #define HCI_MGMT_NO_HDEV BIT(1)
1682 #define HCI_MGMT_UNTRUSTED BIT(2)
1683 #define HCI_MGMT_UNCONFIGURED BIT(3)
1684 #define HCI_MGMT_HDEV_OPTIONAL BIT(4)
1685
1686 struct hci_mgmt_handler {
1687 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1688 u16 data_len);
1689 size_t data_len;
1690 unsigned long flags;
1691 };
1692
1693 struct hci_mgmt_chan {
1694 struct list_head list;
1695 unsigned short channel;
1696 size_t handler_count;
1697 const struct hci_mgmt_handler *handlers;
1698 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1699 };
1700
1701 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1702 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1703
1704 /* Management interface */
1705 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1706 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1707 BIT(BDADDR_LE_RANDOM))
1708 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1709 BIT(BDADDR_LE_PUBLIC) | \
1710 BIT(BDADDR_LE_RANDOM))
1711
1712 /* These LE scan and inquiry parameters were chosen according to LE General
1713 * Discovery Procedure specification.
1714 */
1715 #define DISCOV_LE_SCAN_WIN 0x12
1716 #define DISCOV_LE_SCAN_INT 0x12
1717 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1718 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1719 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1720 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1721 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1722 #define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
1723 #define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
1724
1725 void mgmt_fill_version_info(void *ver);
1726 int mgmt_new_settings(struct hci_dev *hdev);
1727 void mgmt_index_added(struct hci_dev *hdev);
1728 void mgmt_index_removed(struct hci_dev *hdev);
1729 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1730 void mgmt_power_on(struct hci_dev *hdev, int err);
1731 void __mgmt_power_off(struct hci_dev *hdev);
1732 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1733 bool persistent);
1734 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1735 u8 *name, u8 name_len);
1736 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1737 u8 link_type, u8 addr_type, u8 reason,
1738 bool mgmt_connected);
1739 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1740 u8 link_type, u8 addr_type, u8 status);
1741 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1742 u8 addr_type, u8 status);
1743 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1744 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1745 u8 status);
1746 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1747 u8 status);
1748 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1749 u8 link_type, u8 addr_type, u32 value,
1750 u8 confirm_hint);
1751 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1752 u8 link_type, u8 addr_type, u8 status);
1753 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1754 u8 link_type, u8 addr_type, u8 status);
1755 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1756 u8 link_type, u8 addr_type);
1757 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1758 u8 link_type, u8 addr_type, u8 status);
1759 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1760 u8 link_type, u8 addr_type, u8 status);
1761 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1762 u8 link_type, u8 addr_type, u32 passkey,
1763 u8 entered);
1764 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1765 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1766 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1767 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1768 u8 status);
1769 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1770 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1771 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1772 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1773 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1774 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1775 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1776 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1777 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1778 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1779 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1780 u8 addr_type);
1781 bool mgmt_powering_down(struct hci_dev *hdev);
1782 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1783 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1784 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1785 bool persistent);
1786 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1787 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1788 u16 max_interval, u16 latency, u16 timeout);
1789 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1790 bool mgmt_get_connectable(struct hci_dev *hdev);
1791 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1792 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1793 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1794 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1795 u8 instance);
1796 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1797 u8 instance);
1798 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1799
1800 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1801 u16 to_multiplier);
1802 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1803 __u8 ltk[16], __u8 key_size);
1804
1805 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1806 u8 *bdaddr_type);
1807
1808 #define SCO_AIRMODE_MASK 0x0003
1809 #define SCO_AIRMODE_CVSD 0x0000
1810 #define SCO_AIRMODE_TRANSP 0x0003
1811
1812 #endif /* __HCI_CORE_H */
1813