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