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