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/android_kabi.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 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 authenticated;
188 u8 type;
189 u8 enc_size;
190 __le16 ediv;
191 __le64 rand;
192 u8 val[16];
193 };
194
195 struct smp_irk {
196 struct list_head list;
197 struct rcu_head rcu;
198 bdaddr_t rpa;
199 bdaddr_t bdaddr;
200 u8 addr_type;
201 u8 val[16];
202 };
203
204 struct link_key {
205 struct list_head list;
206 struct rcu_head rcu;
207 bdaddr_t bdaddr;
208 u8 type;
209 u8 val[HCI_LINK_KEY_SIZE];
210 u8 pin_len;
211 };
212
213 struct oob_data {
214 struct list_head list;
215 bdaddr_t bdaddr;
216 u8 bdaddr_type;
217 u8 present;
218 u8 hash192[16];
219 u8 rand192[16];
220 u8 hash256[16];
221 u8 rand256[16];
222 };
223
224 struct adv_info {
225 struct list_head list;
226 bool pending;
227 __u8 instance;
228 __u32 flags;
229 __u16 timeout;
230 __u16 remaining_time;
231 __u16 duration;
232 __u16 adv_data_len;
233 __u8 adv_data[HCI_MAX_AD_LENGTH];
234 __u16 scan_rsp_len;
235 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
236 __s8 tx_power;
237 bdaddr_t random_addr;
238 bool rpa_expired;
239 struct delayed_work rpa_expired_cb;
240 };
241
242 #define HCI_MAX_ADV_INSTANCES 5
243 #define HCI_DEFAULT_ADV_DURATION 2
244
245 struct adv_pattern {
246 struct list_head list;
247 __u8 ad_type;
248 __u8 offset;
249 __u8 length;
250 __u8 value[HCI_MAX_AD_LENGTH];
251 };
252
253 struct adv_monitor {
254 struct list_head patterns;
255 bool active;
256 __u16 handle;
257 };
258
259 #define HCI_MIN_ADV_MONITOR_HANDLE 1
260 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
261 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
262
263 #define HCI_MAX_SHORT_NAME_LENGTH 10
264
265 /* Min encryption key size to match with SMP */
266 #define HCI_MIN_ENC_KEY_SIZE 7
267
268 /* Default LE RPA expiry time, 15 minutes */
269 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
270
271 /* Default min/max age of connection information (1s/3s) */
272 #define DEFAULT_CONN_INFO_MIN_AGE 1000
273 #define DEFAULT_CONN_INFO_MAX_AGE 3000
274 /* Default authenticated payload timeout 30s */
275 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
276
277 struct amp_assoc {
278 __u16 len;
279 __u16 offset;
280 __u16 rem_len;
281 __u16 len_so_far;
282 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
283 };
284
285 #define HCI_MAX_PAGES 3
286
287 struct hci_dev {
288 struct list_head list;
289 struct mutex lock;
290
291 char name[8];
292 unsigned long flags;
293 __u16 id;
294 __u8 bus;
295 __u8 dev_type;
296 bdaddr_t bdaddr;
297 bdaddr_t setup_addr;
298 bdaddr_t public_addr;
299 bdaddr_t random_addr;
300 bdaddr_t static_addr;
301 __u8 adv_addr_type;
302 __u8 dev_name[HCI_MAX_NAME_LENGTH];
303 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
304 __u8 eir[HCI_MAX_EIR_LENGTH];
305 __u16 appearance;
306 __u8 dev_class[3];
307 __u8 major_class;
308 __u8 minor_class;
309 __u8 max_page;
310 __u8 features[HCI_MAX_PAGES][8];
311 __u8 le_features[8];
312 __u8 le_white_list_size;
313 __u8 le_resolv_list_size;
314 __u8 le_num_of_adv_sets;
315 __u8 le_states[8];
316 __u8 commands[64];
317 __u8 hci_ver;
318 __u16 hci_rev;
319 __u8 lmp_ver;
320 __u16 manufacturer;
321 __u16 lmp_subver;
322 __u16 voice_setting;
323 __u8 num_iac;
324 __u8 stored_max_keys;
325 __u8 stored_num_keys;
326 __u8 io_capability;
327 __s8 inq_tx_power;
328 __u8 err_data_reporting;
329 __u16 page_scan_interval;
330 __u16 page_scan_window;
331 __u8 page_scan_type;
332 __u8 le_adv_channel_map;
333 __u16 le_adv_min_interval;
334 __u16 le_adv_max_interval;
335 __u8 le_scan_type;
336 __u16 le_scan_interval;
337 __u16 le_scan_window;
338 __u16 le_scan_int_suspend;
339 __u16 le_scan_window_suspend;
340 __u16 le_scan_int_discovery;
341 __u16 le_scan_window_discovery;
342 __u16 le_scan_int_adv_monitor;
343 __u16 le_scan_window_adv_monitor;
344 __u16 le_scan_int_connect;
345 __u16 le_scan_window_connect;
346 __u16 le_conn_min_interval;
347 __u16 le_conn_max_interval;
348 __u16 le_conn_latency;
349 __u16 le_supv_timeout;
350 __u16 le_def_tx_len;
351 __u16 le_def_tx_time;
352 __u16 le_max_tx_len;
353 __u16 le_max_tx_time;
354 __u16 le_max_rx_len;
355 __u16 le_max_rx_time;
356 __u8 le_max_key_size;
357 __u8 le_min_key_size;
358 __u16 discov_interleaved_timeout;
359 __u16 conn_info_min_age;
360 __u16 conn_info_max_age;
361 __u16 auth_payload_timeout;
362 __u8 min_enc_key_size;
363 __u8 max_enc_key_size;
364 __u8 pairing_opts;
365 __u8 ssp_debug_mode;
366 __u8 hw_error_code;
367 __u32 clock;
368
369 __u16 devid_source;
370 __u16 devid_vendor;
371 __u16 devid_product;
372 __u16 devid_version;
373
374 __u8 def_page_scan_type;
375 __u16 def_page_scan_int;
376 __u16 def_page_scan_window;
377 __u8 def_inq_scan_type;
378 __u16 def_inq_scan_int;
379 __u16 def_inq_scan_window;
380 __u16 def_br_lsto;
381 __u16 def_page_timeout;
382 __u16 def_multi_adv_rotation_duration;
383 __u16 def_le_autoconnect_timeout;
384
385 __u16 pkt_type;
386 __u16 esco_type;
387 __u16 link_policy;
388 __u16 link_mode;
389
390 __u32 idle_timeout;
391 __u16 sniff_min_interval;
392 __u16 sniff_max_interval;
393
394 __u8 amp_status;
395 __u32 amp_total_bw;
396 __u32 amp_max_bw;
397 __u32 amp_min_latency;
398 __u32 amp_max_pdu;
399 __u8 amp_type;
400 __u16 amp_pal_cap;
401 __u16 amp_assoc_size;
402 __u32 amp_max_flush_to;
403 __u32 amp_be_flush_to;
404
405 struct amp_assoc loc_assoc;
406
407 __u8 flow_ctl_mode;
408
409 unsigned int auto_accept_delay;
410
411 unsigned long quirks;
412
413 atomic_t cmd_cnt;
414 unsigned int acl_cnt;
415 unsigned int sco_cnt;
416 unsigned int le_cnt;
417
418 unsigned int acl_mtu;
419 unsigned int sco_mtu;
420 unsigned int le_mtu;
421 unsigned int acl_pkts;
422 unsigned int sco_pkts;
423 unsigned int le_pkts;
424
425 __u16 block_len;
426 __u16 block_mtu;
427 __u16 num_blocks;
428 __u16 block_cnt;
429
430 unsigned long acl_last_tx;
431 unsigned long sco_last_tx;
432 unsigned long le_last_tx;
433
434 __u8 le_tx_def_phys;
435 __u8 le_rx_def_phys;
436
437 struct workqueue_struct *workqueue;
438 struct workqueue_struct *req_workqueue;
439
440 struct work_struct power_on;
441 struct delayed_work power_off;
442 struct work_struct error_reset;
443
444 __u16 discov_timeout;
445 struct delayed_work discov_off;
446
447 struct delayed_work service_cache;
448
449 struct delayed_work cmd_timer;
450
451 struct work_struct rx_work;
452 struct work_struct cmd_work;
453 struct work_struct tx_work;
454
455 struct work_struct discov_update;
456 struct work_struct bg_scan_update;
457 struct work_struct scan_update;
458 struct work_struct connectable_update;
459 struct work_struct discoverable_update;
460 struct delayed_work le_scan_disable;
461 struct delayed_work le_scan_restart;
462
463 struct sk_buff_head rx_q;
464 struct sk_buff_head raw_q;
465 struct sk_buff_head cmd_q;
466
467 struct sk_buff *sent_cmd;
468
469 struct mutex req_lock;
470 wait_queue_head_t req_wait_q;
471 __u32 req_status;
472 __u32 req_result;
473 struct sk_buff *req_skb;
474
475 void *smp_data;
476 void *smp_bredr_data;
477
478 struct discovery_state discovery;
479
480 int discovery_old_state;
481 bool discovery_paused;
482 int advertising_old_state;
483 bool advertising_paused;
484
485 struct notifier_block suspend_notifier;
486 struct work_struct suspend_prepare;
487 enum suspended_state suspend_state_next;
488 enum suspended_state suspend_state;
489 bool scanning_paused;
490 bool suspended;
491 u8 wake_reason;
492 bdaddr_t wake_addr;
493 u8 wake_addr_type;
494
495 wait_queue_head_t suspend_wait_q;
496 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
497
498 struct hci_conn_hash conn_hash;
499
500 struct list_head mgmt_pending;
501 struct list_head blacklist;
502 struct list_head whitelist;
503 struct list_head uuids;
504 struct list_head link_keys;
505 struct list_head long_term_keys;
506 struct list_head identity_resolving_keys;
507 struct list_head remote_oob_data;
508 struct list_head le_white_list;
509 struct list_head le_resolv_list;
510 struct list_head le_conn_params;
511 struct list_head pend_le_conns;
512 struct list_head pend_le_reports;
513 struct list_head blocked_keys;
514
515 struct hci_dev_stats stat;
516
517 atomic_t promisc;
518
519 const char *hw_info;
520 const char *fw_info;
521 struct dentry *debugfs;
522
523 struct device dev;
524
525 struct rfkill *rfkill;
526
527 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
528
529 __s8 adv_tx_power;
530 __u8 adv_data[HCI_MAX_AD_LENGTH];
531 __u8 adv_data_len;
532 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
533 __u8 scan_rsp_data_len;
534
535 struct list_head adv_instances;
536 unsigned int adv_instance_cnt;
537 __u8 cur_adv_instance;
538 __u16 adv_instance_timeout;
539 struct delayed_work adv_instance_expire;
540
541 struct idr adv_monitors_idr;
542 unsigned int adv_monitors_cnt;
543
544 __u8 irk[16];
545 __u32 rpa_timeout;
546 struct delayed_work rpa_expired;
547 bdaddr_t rpa;
548
549 #if IS_ENABLED(CONFIG_BT_LEDS)
550 struct led_trigger *power_led;
551 #endif
552
553 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
554 __u16 msft_opcode;
555 void *msft_data;
556 #endif
557
558 int (*open)(struct hci_dev *hdev);
559 int (*close)(struct hci_dev *hdev);
560 int (*flush)(struct hci_dev *hdev);
561 int (*setup)(struct hci_dev *hdev);
562 int (*shutdown)(struct hci_dev *hdev);
563 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
564 void (*notify)(struct hci_dev *hdev, unsigned int evt);
565 void (*hw_error)(struct hci_dev *hdev, u8 code);
566 int (*post_init)(struct hci_dev *hdev);
567 int (*set_diag)(struct hci_dev *hdev, bool enable);
568 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
569 void (*cmd_timeout)(struct hci_dev *hdev);
570 bool (*prevent_wake)(struct hci_dev *hdev);
571
572 ANDROID_KABI_RESERVE(1);
573 ANDROID_KABI_RESERVE(2);
574 ANDROID_KABI_RESERVE(3);
575 ANDROID_KABI_RESERVE(4);
576 };
577
578 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
579
580 enum conn_reasons {
581 CONN_REASON_PAIR_DEVICE,
582 CONN_REASON_L2CAP_CHAN,
583 CONN_REASON_SCO_CONNECT,
584 };
585
586 struct hci_conn {
587 struct list_head list;
588
589 atomic_t refcnt;
590
591 bdaddr_t dst;
592 __u8 dst_type;
593 bdaddr_t src;
594 __u8 src_type;
595 bdaddr_t init_addr;
596 __u8 init_addr_type;
597 bdaddr_t resp_addr;
598 __u8 resp_addr_type;
599 __u16 handle;
600 __u16 state;
601 __u8 mode;
602 __u8 type;
603 __u8 role;
604 bool out;
605 __u8 attempt;
606 __u8 dev_class[3];
607 __u8 features[HCI_MAX_PAGES][8];
608 __u16 pkt_type;
609 __u16 link_policy;
610 __u8 key_type;
611 __u8 auth_type;
612 __u8 sec_level;
613 __u8 pending_sec_level;
614 __u8 pin_length;
615 __u8 enc_key_size;
616 __u8 io_capability;
617 __u32 passkey_notify;
618 __u8 passkey_entered;
619 __u16 disc_timeout;
620 __u16 conn_timeout;
621 __u16 setting;
622 __u16 auth_payload_timeout;
623 __u16 le_conn_min_interval;
624 __u16 le_conn_max_interval;
625 __u16 le_conn_interval;
626 __u16 le_conn_latency;
627 __u16 le_supv_timeout;
628 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
629 __u8 le_adv_data_len;
630 __u8 le_tx_phy;
631 __u8 le_rx_phy;
632 __s8 rssi;
633 __s8 tx_power;
634 __s8 max_tx_power;
635 unsigned long flags;
636
637 enum conn_reasons conn_reason;
638
639 __u32 clock;
640 __u16 clock_accuracy;
641
642 unsigned long conn_info_timestamp;
643
644 __u8 remote_cap;
645 __u8 remote_auth;
646 __u8 remote_id;
647
648 unsigned int sent;
649
650 struct sk_buff_head data_q;
651 struct list_head chan_list;
652
653 struct delayed_work disc_work;
654 struct delayed_work auto_accept_work;
655 struct delayed_work idle_work;
656 struct delayed_work le_conn_timeout;
657 struct work_struct le_scan_cleanup;
658
659 struct device dev;
660 struct dentry *debugfs;
661
662 struct hci_dev *hdev;
663 void *l2cap_data;
664 void *sco_data;
665 struct amp_mgr *amp_mgr;
666
667 struct hci_conn *link;
668
669 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
670 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
671 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
672
673 ANDROID_KABI_RESERVE(1);
674 ANDROID_KABI_RESERVE(2);
675 ANDROID_KABI_RESERVE(3);
676 ANDROID_KABI_RESERVE(4);
677 };
678
679 struct hci_chan {
680 struct list_head list;
681 __u16 handle;
682 struct hci_conn *conn;
683 struct sk_buff_head data_q;
684 unsigned int sent;
685 __u8 state;
686 bool amp;
687
688 ANDROID_KABI_RESERVE(1);
689 };
690
691 struct hci_conn_params {
692 struct list_head list;
693 struct list_head action;
694
695 bdaddr_t addr;
696 u8 addr_type;
697
698 u16 conn_min_interval;
699 u16 conn_max_interval;
700 u16 conn_latency;
701 u16 supervision_timeout;
702
703 enum {
704 HCI_AUTO_CONN_DISABLED,
705 HCI_AUTO_CONN_REPORT,
706 HCI_AUTO_CONN_DIRECT,
707 HCI_AUTO_CONN_ALWAYS,
708 HCI_AUTO_CONN_LINK_LOSS,
709 HCI_AUTO_CONN_EXPLICIT,
710 } auto_connect;
711
712 struct hci_conn *conn;
713 bool explicit_connect;
714 u32 current_flags;
715
716 ANDROID_KABI_RESERVE(1);
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_REAUTH_PEND,
823 HCI_CONN_ENCRYPT_PEND,
824 HCI_CONN_RSWITCH_PEND,
825 HCI_CONN_MODE_CHANGE_PEND,
826 HCI_CONN_SCO_SETUP_PEND,
827 HCI_CONN_MGMT_CONNECTED,
828 HCI_CONN_SSP_ENABLED,
829 HCI_CONN_SC_ENABLED,
830 HCI_CONN_AES_CCM,
831 HCI_CONN_POWER_SAVE,
832 HCI_CONN_FLUSH_KEY,
833 HCI_CONN_ENCRYPT,
834 HCI_CONN_AUTH,
835 HCI_CONN_SECURE,
836 HCI_CONN_FIPS,
837 HCI_CONN_STK_ENCRYPT,
838 HCI_CONN_AUTH_INITIATOR,
839 HCI_CONN_DROP,
840 HCI_CONN_PARAM_REMOVAL_PEND,
841 HCI_CONN_NEW_LINK_KEY,
842 HCI_CONN_SCANNING,
843 HCI_CONN_AUTH_FAILURE,
844 };
845
hci_conn_ssp_enabled(struct hci_conn * conn)846 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
847 {
848 struct hci_dev *hdev = conn->hdev;
849 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
850 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
851 }
852
hci_conn_sc_enabled(struct hci_conn * conn)853 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
854 {
855 struct hci_dev *hdev = conn->hdev;
856 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
857 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
858 }
859
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)860 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
861 {
862 struct hci_conn_hash *h = &hdev->conn_hash;
863 list_add_rcu(&c->list, &h->list);
864 switch (c->type) {
865 case ACL_LINK:
866 h->acl_num++;
867 break;
868 case AMP_LINK:
869 h->amp_num++;
870 break;
871 case LE_LINK:
872 h->le_num++;
873 if (c->role == HCI_ROLE_SLAVE)
874 h->le_num_slave++;
875 break;
876 case SCO_LINK:
877 case ESCO_LINK:
878 h->sco_num++;
879 break;
880 }
881 }
882
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)883 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
884 {
885 struct hci_conn_hash *h = &hdev->conn_hash;
886
887 list_del_rcu(&c->list);
888 synchronize_rcu();
889
890 switch (c->type) {
891 case ACL_LINK:
892 h->acl_num--;
893 break;
894 case AMP_LINK:
895 h->amp_num--;
896 break;
897 case LE_LINK:
898 h->le_num--;
899 if (c->role == HCI_ROLE_SLAVE)
900 h->le_num_slave--;
901 break;
902 case SCO_LINK:
903 case ESCO_LINK:
904 h->sco_num--;
905 break;
906 }
907 }
908
hci_conn_num(struct hci_dev * hdev,__u8 type)909 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
910 {
911 struct hci_conn_hash *h = &hdev->conn_hash;
912 switch (type) {
913 case ACL_LINK:
914 return h->acl_num;
915 case AMP_LINK:
916 return h->amp_num;
917 case LE_LINK:
918 return h->le_num;
919 case SCO_LINK:
920 case ESCO_LINK:
921 return h->sco_num;
922 default:
923 return 0;
924 }
925 }
926
hci_conn_count(struct hci_dev * hdev)927 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
928 {
929 struct hci_conn_hash *c = &hdev->conn_hash;
930
931 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
932 }
933
hci_conn_lookup_type(struct hci_dev * hdev,__u16 handle)934 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
935 {
936 struct hci_conn_hash *h = &hdev->conn_hash;
937 struct hci_conn *c;
938 __u8 type = INVALID_LINK;
939
940 rcu_read_lock();
941
942 list_for_each_entry_rcu(c, &h->list, list) {
943 if (c->handle == handle) {
944 type = c->type;
945 break;
946 }
947 }
948
949 rcu_read_unlock();
950
951 return type;
952 }
953
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)954 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
955 __u16 handle)
956 {
957 struct hci_conn_hash *h = &hdev->conn_hash;
958 struct hci_conn *c;
959
960 rcu_read_lock();
961
962 list_for_each_entry_rcu(c, &h->list, list) {
963 if (c->handle == handle) {
964 rcu_read_unlock();
965 return c;
966 }
967 }
968 rcu_read_unlock();
969
970 return NULL;
971 }
972
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)973 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
974 __u8 type, bdaddr_t *ba)
975 {
976 struct hci_conn_hash *h = &hdev->conn_hash;
977 struct hci_conn *c;
978
979 rcu_read_lock();
980
981 list_for_each_entry_rcu(c, &h->list, list) {
982 if (c->type == type && !bacmp(&c->dst, ba)) {
983 rcu_read_unlock();
984 return c;
985 }
986 }
987
988 rcu_read_unlock();
989
990 return NULL;
991 }
992
hci_conn_hash_lookup_le(struct hci_dev * hdev,bdaddr_t * ba,__u8 ba_type)993 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
994 bdaddr_t *ba,
995 __u8 ba_type)
996 {
997 struct hci_conn_hash *h = &hdev->conn_hash;
998 struct hci_conn *c;
999
1000 rcu_read_lock();
1001
1002 list_for_each_entry_rcu(c, &h->list, list) {
1003 if (c->type != LE_LINK)
1004 continue;
1005
1006 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1007 rcu_read_unlock();
1008 return c;
1009 }
1010 }
1011
1012 rcu_read_unlock();
1013
1014 return NULL;
1015 }
1016
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)1017 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1018 __u8 type, __u16 state)
1019 {
1020 struct hci_conn_hash *h = &hdev->conn_hash;
1021 struct hci_conn *c;
1022
1023 rcu_read_lock();
1024
1025 list_for_each_entry_rcu(c, &h->list, list) {
1026 if (c->type == type && c->state == state) {
1027 rcu_read_unlock();
1028 return c;
1029 }
1030 }
1031
1032 rcu_read_unlock();
1033
1034 return NULL;
1035 }
1036
hci_lookup_le_connect(struct hci_dev * hdev)1037 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1038 {
1039 struct hci_conn_hash *h = &hdev->conn_hash;
1040 struct hci_conn *c;
1041
1042 rcu_read_lock();
1043
1044 list_for_each_entry_rcu(c, &h->list, list) {
1045 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1046 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1047 rcu_read_unlock();
1048 return c;
1049 }
1050 }
1051
1052 rcu_read_unlock();
1053
1054 return NULL;
1055 }
1056
1057 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1058 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1059 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1060
1061 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1062 u8 role);
1063 int hci_conn_del(struct hci_conn *conn);
1064 void hci_conn_hash_flush(struct hci_dev *hdev);
1065 void hci_conn_check_pending(struct hci_dev *hdev);
1066
1067 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1068 void hci_chan_del(struct hci_chan *chan);
1069 void hci_chan_list_flush(struct hci_conn *conn);
1070 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1071
1072 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1073 u8 dst_type, u8 sec_level,
1074 u16 conn_timeout,
1075 enum conn_reasons conn_reason);
1076 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1077 u8 dst_type, u8 sec_level, u16 conn_timeout,
1078 u8 role, bdaddr_t *direct_rpa);
1079 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1080 u8 sec_level, u8 auth_type,
1081 enum conn_reasons conn_reason);
1082 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1083 __u16 setting);
1084 int hci_conn_check_link_mode(struct hci_conn *conn);
1085 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1086 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1087 bool initiator);
1088 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1089
1090 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1091
1092 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1093
1094 /*
1095 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1096 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1097 * working or anything else. They just guarantee that the object is available
1098 * and can be dereferenced. So you can use its locks, local variables and any
1099 * other constant data.
1100 * Before accessing runtime data, you _must_ lock the object and then check that
1101 * it is still running. As soon as you release the locks, the connection might
1102 * get dropped, though.
1103 *
1104 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1105 * how long the underlying connection is held. So every channel that runs on the
1106 * hci_conn object calls this to prevent the connection from disappearing. As
1107 * long as you hold a device, you must also guarantee that you have a valid
1108 * reference to the device via hci_conn_get() (or the initial reference from
1109 * hci_conn_add()).
1110 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1111 * break because nobody cares for that. But this means, we cannot use
1112 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1113 */
1114
hci_conn_get(struct hci_conn * conn)1115 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1116 {
1117 get_device(&conn->dev);
1118 return conn;
1119 }
1120
hci_conn_put(struct hci_conn * conn)1121 static inline void hci_conn_put(struct hci_conn *conn)
1122 {
1123 put_device(&conn->dev);
1124 }
1125
hci_conn_hold(struct hci_conn * conn)1126 static inline void hci_conn_hold(struct hci_conn *conn)
1127 {
1128 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1129
1130 atomic_inc(&conn->refcnt);
1131 cancel_delayed_work(&conn->disc_work);
1132 }
1133
hci_conn_drop(struct hci_conn * conn)1134 static inline void hci_conn_drop(struct hci_conn *conn)
1135 {
1136 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1137
1138 if (atomic_dec_and_test(&conn->refcnt)) {
1139 unsigned long timeo;
1140
1141 switch (conn->type) {
1142 case ACL_LINK:
1143 case LE_LINK:
1144 cancel_delayed_work(&conn->idle_work);
1145 if (conn->state == BT_CONNECTED) {
1146 timeo = conn->disc_timeout;
1147 if (!conn->out)
1148 timeo *= 2;
1149 } else {
1150 timeo = 0;
1151 }
1152 break;
1153
1154 case AMP_LINK:
1155 timeo = conn->disc_timeout;
1156 break;
1157
1158 default:
1159 timeo = 0;
1160 break;
1161 }
1162
1163 cancel_delayed_work(&conn->disc_work);
1164 queue_delayed_work(conn->hdev->workqueue,
1165 &conn->disc_work, timeo);
1166 }
1167 }
1168
1169 /* ----- HCI Devices ----- */
hci_dev_put(struct hci_dev * d)1170 static inline void hci_dev_put(struct hci_dev *d)
1171 {
1172 BT_DBG("%s orig refcnt %d", d->name,
1173 kref_read(&d->dev.kobj.kref));
1174
1175 put_device(&d->dev);
1176 }
1177
hci_dev_hold(struct hci_dev * d)1178 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1179 {
1180 BT_DBG("%s orig refcnt %d", d->name,
1181 kref_read(&d->dev.kobj.kref));
1182
1183 get_device(&d->dev);
1184 return d;
1185 }
1186
1187 #define hci_dev_lock(d) mutex_lock(&d->lock)
1188 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1189
1190 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1191 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1192
hci_get_drvdata(struct hci_dev * hdev)1193 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1194 {
1195 return dev_get_drvdata(&hdev->dev);
1196 }
1197
hci_set_drvdata(struct hci_dev * hdev,void * data)1198 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1199 {
1200 dev_set_drvdata(&hdev->dev, data);
1201 }
1202
1203 struct hci_dev *hci_dev_get(int index);
1204 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1205
1206 struct hci_dev *hci_alloc_dev(void);
1207 void hci_free_dev(struct hci_dev *hdev);
1208 int hci_register_dev(struct hci_dev *hdev);
1209 void hci_unregister_dev(struct hci_dev *hdev);
1210 void hci_cleanup_dev(struct hci_dev *hdev);
1211 int hci_suspend_dev(struct hci_dev *hdev);
1212 int hci_resume_dev(struct hci_dev *hdev);
1213 int hci_reset_dev(struct hci_dev *hdev);
1214 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1215 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1216 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1217 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1218
hci_set_msft_opcode(struct hci_dev * hdev,__u16 opcode)1219 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1220 {
1221 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1222 hdev->msft_opcode = opcode;
1223 #endif
1224 }
1225
1226 int hci_dev_open(__u16 dev);
1227 int hci_dev_close(__u16 dev);
1228 int hci_dev_do_close(struct hci_dev *hdev);
1229 int hci_dev_reset(__u16 dev);
1230 int hci_dev_reset_stat(__u16 dev);
1231 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1232 int hci_get_dev_list(void __user *arg);
1233 int hci_get_dev_info(void __user *arg);
1234 int hci_get_conn_list(void __user *arg);
1235 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1236 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1237 int hci_inquiry(void __user *arg);
1238
1239 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1240 bdaddr_t *bdaddr, u8 type);
1241 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1242 struct list_head *list, bdaddr_t *bdaddr,
1243 u8 type);
1244 struct bdaddr_list_with_flags *
1245 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1246 u8 type);
1247 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1248 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1249 u8 type, u8 *peer_irk, u8 *local_irk);
1250 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1251 u8 type, u32 flags);
1252 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1253 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1254 u8 type);
1255 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1256 u8 type);
1257 void hci_bdaddr_list_clear(struct list_head *list);
1258
1259 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1260 bdaddr_t *addr, u8 addr_type);
1261 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1262 bdaddr_t *addr, u8 addr_type);
1263 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1264 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1265
1266 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1267 bdaddr_t *addr,
1268 u8 addr_type);
1269
1270 void hci_uuids_clear(struct hci_dev *hdev);
1271
1272 void hci_link_keys_clear(struct hci_dev *hdev);
1273 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1274 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1275 bdaddr_t *bdaddr, u8 *val, u8 type,
1276 u8 pin_len, bool *persistent);
1277 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1278 u8 addr_type, u8 type, u8 authenticated,
1279 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1280 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1281 u8 addr_type, u8 role);
1282 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1283 void hci_smp_ltks_clear(struct hci_dev *hdev);
1284 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1285
1286 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1287 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1288 u8 addr_type);
1289 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1290 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1291 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1292 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1293 void hci_blocked_keys_clear(struct hci_dev *hdev);
1294 void hci_smp_irks_clear(struct hci_dev *hdev);
1295
1296 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1297
1298 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1299 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1300 bdaddr_t *bdaddr, u8 bdaddr_type);
1301 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1302 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1303 u8 *hash256, u8 *rand256);
1304 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1305 u8 bdaddr_type);
1306
1307 void hci_adv_instances_clear(struct hci_dev *hdev);
1308 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1309 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1310 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1311 u16 adv_data_len, u8 *adv_data,
1312 u16 scan_rsp_len, u8 *scan_rsp_data,
1313 u16 timeout, u16 duration);
1314 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1315 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1316
1317 void hci_adv_monitors_clear(struct hci_dev *hdev);
1318 void hci_free_adv_monitor(struct adv_monitor *monitor);
1319 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1320 int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
1321 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1322
1323 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1324
1325 void hci_init_sysfs(struct hci_dev *hdev);
1326 void hci_conn_init_sysfs(struct hci_conn *conn);
1327 void hci_conn_add_sysfs(struct hci_conn *conn);
1328 void hci_conn_del_sysfs(struct hci_conn *conn);
1329
1330 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1331
1332 /* ----- LMP capabilities ----- */
1333 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1334 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1335 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1336 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1337 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1338 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1339 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1340 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1341 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1342 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1343 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1344 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1345 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1346 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1347 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1348 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1349 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1350 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1351 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1352 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1353 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1354 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1355 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1356
1357 /* ----- Extended LMP capabilities ----- */
1358 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1359 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1360 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1361 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1362 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1363 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1364
1365 /* ----- Host capabilities ----- */
1366 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1367 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1368 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1369 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1370
1371 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1372 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1373 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1374 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1375
1376 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1377 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1378
1379 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1380 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1381
1382 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1383 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1384
1385 /* Use LL Privacy based address resolution if supported */
1386 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1387
1388 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1389 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1390 ((dev)->commands[37] & 0x40))
1391 /* Use ext create connection if command is supported */
1392 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1393
1394 /* Extended advertising support */
1395 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1396
1397 /* ----- HCI protocols ----- */
1398 #define HCI_PROTO_DEFER 0x01
1399
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type,__u8 * flags)1400 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1401 __u8 type, __u8 *flags)
1402 {
1403 switch (type) {
1404 case ACL_LINK:
1405 return l2cap_connect_ind(hdev, bdaddr);
1406
1407 case SCO_LINK:
1408 case ESCO_LINK:
1409 return sco_connect_ind(hdev, bdaddr, flags);
1410
1411 default:
1412 BT_ERR("unknown link type %d", type);
1413 return -EINVAL;
1414 }
1415 }
1416
hci_proto_disconn_ind(struct hci_conn * conn)1417 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1418 {
1419 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1420 return HCI_ERROR_REMOTE_USER_TERM;
1421
1422 return l2cap_disconn_ind(conn);
1423 }
1424
1425 /* ----- HCI callbacks ----- */
1426 struct hci_cb {
1427 struct list_head list;
1428
1429 char *name;
1430
1431 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1432 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1433 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1434 __u8 encrypt);
1435 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1436 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1437
1438 ANDROID_KABI_RESERVE(1);
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 ANDROID_KABI_RESERVE(1);
1701 };
1702
1703 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1704 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1705
1706 /* Management interface */
1707 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1708 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1709 BIT(BDADDR_LE_RANDOM))
1710 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1711 BIT(BDADDR_LE_PUBLIC) | \
1712 BIT(BDADDR_LE_RANDOM))
1713
1714 /* These LE scan and inquiry parameters were chosen according to LE General
1715 * Discovery Procedure specification.
1716 */
1717 #define DISCOV_LE_SCAN_WIN 0x12
1718 #define DISCOV_LE_SCAN_INT 0x12
1719 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1720 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1721 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1722 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1723 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1724 #define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */
1725 #define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */
1726
1727 void mgmt_fill_version_info(void *ver);
1728 int mgmt_new_settings(struct hci_dev *hdev);
1729 void mgmt_index_added(struct hci_dev *hdev);
1730 void mgmt_index_removed(struct hci_dev *hdev);
1731 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1732 void mgmt_power_on(struct hci_dev *hdev, int err);
1733 void __mgmt_power_off(struct hci_dev *hdev);
1734 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1735 bool persistent);
1736 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1737 u32 flags, u8 *name, u8 name_len);
1738 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1739 u8 link_type, u8 addr_type, u8 reason,
1740 bool mgmt_connected);
1741 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1742 u8 link_type, u8 addr_type, u8 status);
1743 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1744 u8 addr_type, u8 status);
1745 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1746 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1747 u8 status);
1748 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1749 u8 status);
1750 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1751 u8 link_type, u8 addr_type, u32 value,
1752 u8 confirm_hint);
1753 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1754 u8 link_type, u8 addr_type, u8 status);
1755 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1756 u8 link_type, u8 addr_type, u8 status);
1757 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1758 u8 link_type, u8 addr_type);
1759 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1760 u8 link_type, u8 addr_type, u8 status);
1761 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1762 u8 link_type, u8 addr_type, u8 status);
1763 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1764 u8 link_type, u8 addr_type, u32 passkey,
1765 u8 entered);
1766 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1767 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1768 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1769 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1770 u8 status);
1771 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1772 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1773 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1774 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1775 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1776 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1777 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1778 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1779 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1780 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1781 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1782 u8 addr_type);
1783 bool mgmt_powering_down(struct hci_dev *hdev);
1784 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1785 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1786 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1787 bool persistent);
1788 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1789 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1790 u16 max_interval, u16 latency, u16 timeout);
1791 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1792 bool mgmt_get_connectable(struct hci_dev *hdev);
1793 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1794 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1795 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1796 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1797 u8 instance);
1798 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1799 u8 instance);
1800 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1801
1802 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1803 u16 to_multiplier);
1804 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1805 __u8 ltk[16], __u8 key_size);
1806
1807 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1808 u8 *bdaddr_type);
1809
1810 #define SCO_AIRMODE_MASK 0x0003
1811 #define SCO_AIRMODE_CVSD 0x0000
1812 #define SCO_AIRMODE_TRANSP 0x0003
1813
1814 #endif /* __HCI_CORE_H */
1815