1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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
33#define HCI_PRIO_MAX 7
34
35
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;
49 struct list_head list;
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;
70 struct list_head unknown;
71 struct list_head resolve;
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
180#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
181
182
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 __u8 dev_class[3];
215 __u8 major_class;
216 __u8 minor_class;
217 __u8 max_page;
218 __u8 features[HCI_MAX_PAGES][8];
219 __u8 le_features[8];
220 __u8 le_white_list_size;
221 __u8 le_states[8];
222 __u8 commands[64];
223 __u8 hci_ver;
224 __u16 hci_rev;
225 __u8 lmp_ver;
226 __u16 manufacturer;
227 __u16 lmp_subver;
228 __u16 voice_setting;
229 __u8 num_iac;
230 __u8 stored_max_keys;
231 __u8 stored_num_keys;
232 __u8 io_capability;
233 __s8 inq_tx_power;
234 __u16 page_scan_interval;
235 __u16 page_scan_window;
236 __u8 page_scan_type;
237 __u8 le_adv_channel_map;
238 __u16 le_adv_min_interval;
239 __u16 le_adv_max_interval;
240 __u8 le_scan_type;
241 __u16 le_scan_interval;
242 __u16 le_scan_window;
243 __u16 le_conn_min_interval;
244 __u16 le_conn_max_interval;
245 __u16 le_conn_latency;
246 __u16 le_supv_timeout;
247 __u16 le_def_tx_len;
248 __u16 le_def_tx_time;
249 __u16 le_max_tx_len;
250 __u16 le_max_tx_time;
251 __u16 le_max_rx_len;
252 __u16 le_max_rx_time;
253 __u16 discov_interleaved_timeout;
254 __u16 conn_info_min_age;
255 __u16 conn_info_max_age;
256 __u8 ssp_debug_mode;
257 __u8 hw_error_code;
258 __u32 clock;
259
260 __u16 devid_source;
261 __u16 devid_vendor;
262 __u16 devid_product;
263 __u16 devid_version;
264
265 __u16 pkt_type;
266 __u16 esco_type;
267 __u16 link_policy;
268 __u16 link_mode;
269
270 __u32 idle_timeout;
271 __u16 sniff_min_interval;
272 __u16 sniff_max_interval;
273
274 __u8 amp_status;
275 __u32 amp_total_bw;
276 __u32 amp_max_bw;
277 __u32 amp_min_latency;
278 __u32 amp_max_pdu;
279 __u8 amp_type;
280 __u16 amp_pal_cap;
281 __u16 amp_assoc_size;
282 __u32 amp_max_flush_to;
283 __u32 amp_be_flush_to;
284
285 struct amp_assoc loc_assoc;
286
287 __u8 flow_ctl_mode;
288
289 unsigned int auto_accept_delay;
290
291 unsigned long quirks;
292
293 atomic_t cmd_cnt;
294 unsigned int acl_cnt;
295 unsigned int sco_cnt;
296 unsigned int le_cnt;
297
298 unsigned int acl_mtu;
299 unsigned int sco_mtu;
300 unsigned int le_mtu;
301 unsigned int acl_pkts;
302 unsigned int sco_pkts;
303 unsigned int le_pkts;
304
305 __u16 block_len;
306 __u16 block_mtu;
307 __u16 num_blocks;
308 __u16 block_cnt;
309
310 unsigned long acl_last_tx;
311 unsigned long sco_last_tx;
312 unsigned long le_last_tx;
313
314 struct workqueue_struct *workqueue;
315 struct workqueue_struct *req_workqueue;
316
317 struct work_struct power_on;
318 struct delayed_work power_off;
319 struct work_struct error_reset;
320
321 __u16 discov_timeout;
322 struct delayed_work discov_off;
323
324 struct delayed_work service_cache;
325
326 struct delayed_work cmd_timer;
327
328 struct work_struct rx_work;
329 struct work_struct cmd_work;
330 struct work_struct tx_work;
331
332 struct work_struct discov_update;
333 struct work_struct bg_scan_update;
334 struct work_struct scan_update;
335 struct work_struct connectable_update;
336 struct work_struct discoverable_update;
337 struct delayed_work le_scan_disable;
338 struct delayed_work le_scan_restart;
339
340 struct sk_buff_head rx_q;
341 struct sk_buff_head raw_q;
342 struct sk_buff_head cmd_q;
343
344 struct sk_buff *sent_cmd;
345
346 struct mutex req_lock;
347 wait_queue_head_t req_wait_q;
348 __u32 req_status;
349 __u32 req_result;
350 struct sk_buff *req_skb;
351
352 void *smp_data;
353 void *smp_bredr_data;
354
355 struct discovery_state discovery;
356 struct hci_conn_hash conn_hash;
357
358 struct list_head mgmt_pending;
359 struct list_head blacklist;
360 struct list_head whitelist;
361 struct list_head uuids;
362 struct list_head link_keys;
363 struct list_head long_term_keys;
364 struct list_head identity_resolving_keys;
365 struct list_head remote_oob_data;
366 struct list_head le_white_list;
367 struct list_head le_conn_params;
368 struct list_head pend_le_conns;
369 struct list_head pend_le_reports;
370
371 struct hci_dev_stats stat;
372
373 atomic_t promisc;
374
375 const char *hw_info;
376 const char *fw_info;
377 struct dentry *debugfs;
378
379 struct device dev;
380
381 struct rfkill *rfkill;
382
383 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
384
385 __s8 adv_tx_power;
386 __u8 adv_data[HCI_MAX_AD_LENGTH];
387 __u8 adv_data_len;
388 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
389 __u8 scan_rsp_data_len;
390
391 struct list_head adv_instances;
392 unsigned int adv_instance_cnt;
393 __u8 cur_adv_instance;
394 __u16 adv_instance_timeout;
395 struct delayed_work adv_instance_expire;
396
397 __u8 irk[16];
398 __u32 rpa_timeout;
399 struct delayed_work rpa_expired;
400 bdaddr_t rpa;
401
402 struct led_trigger *power_led;
403
404 int (*open)(struct hci_dev *hdev);
405 int (*close)(struct hci_dev *hdev);
406 int (*flush)(struct hci_dev *hdev);
407 int (*setup)(struct hci_dev *hdev);
408 int (*shutdown)(struct hci_dev *hdev);
409 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
410 void (*notify)(struct hci_dev *hdev, unsigned int evt);
411 void (*hw_error)(struct hci_dev *hdev, u8 code);
412 int (*post_init)(struct hci_dev *hdev);
413 int (*set_diag)(struct hci_dev *hdev, bool enable);
414 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
415};
416
417#define HCI_PHY_HANDLE(handle) (handle & 0xff)
418
419struct hci_conn {
420 struct list_head list;
421
422 atomic_t refcnt;
423
424 bdaddr_t dst;
425 __u8 dst_type;
426 bdaddr_t src;
427 __u8 src_type;
428 bdaddr_t init_addr;
429 __u8 init_addr_type;
430 bdaddr_t resp_addr;
431 __u8 resp_addr_type;
432 __u16 handle;
433 __u16 state;
434 __u8 mode;
435 __u8 type;
436 __u8 role;
437 bool out;
438 __u8 attempt;
439 __u8 dev_class[3];
440 __u8 features[HCI_MAX_PAGES][8];
441 __u16 pkt_type;
442 __u16 link_policy;
443 __u8 key_type;
444 __u8 auth_type;
445 __u8 sec_level;
446 __u8 pending_sec_level;
447 __u8 pin_length;
448 __u8 enc_key_size;
449 __u8 io_capability;
450 __u32 passkey_notify;
451 __u8 passkey_entered;
452 __u16 disc_timeout;
453 __u16 conn_timeout;
454 __u16 setting;
455 __u16 le_conn_min_interval;
456 __u16 le_conn_max_interval;
457 __u16 le_conn_interval;
458 __u16 le_conn_latency;
459 __u16 le_supv_timeout;
460 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
461 __u8 le_adv_data_len;
462 __s8 rssi;
463 __s8 tx_power;
464 __s8 max_tx_power;
465 unsigned long flags;
466
467 __u32 clock;
468 __u16 clock_accuracy;
469
470 unsigned long conn_info_timestamp;
471
472 __u8 remote_cap;
473 __u8 remote_auth;
474 __u8 remote_id;
475
476 unsigned int sent;
477
478 struct sk_buff_head data_q;
479 struct list_head chan_list;
480
481 struct delayed_work disc_work;
482 struct delayed_work auto_accept_work;
483 struct delayed_work idle_work;
484 struct delayed_work le_conn_timeout;
485 struct work_struct le_scan_cleanup;
486
487 struct device dev;
488 struct dentry *debugfs;
489
490 struct hci_dev *hdev;
491 void *l2cap_data;
492 void *sco_data;
493 struct amp_mgr *amp_mgr;
494
495 struct hci_conn *link;
496
497 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
498 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
499 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
500};
501
502struct hci_chan {
503 struct list_head list;
504 __u16 handle;
505 struct hci_conn *conn;
506 struct sk_buff_head data_q;
507 unsigned int sent;
508 __u8 state;
509};
510
511struct hci_conn_params {
512 struct list_head list;
513 struct list_head action;
514
515 bdaddr_t addr;
516 u8 addr_type;
517
518 u16 conn_min_interval;
519 u16 conn_max_interval;
520 u16 conn_latency;
521 u16 supervision_timeout;
522
523 enum {
524 HCI_AUTO_CONN_DISABLED,
525 HCI_AUTO_CONN_REPORT,
526 HCI_AUTO_CONN_DIRECT,
527 HCI_AUTO_CONN_ALWAYS,
528 HCI_AUTO_CONN_LINK_LOSS,
529 HCI_AUTO_CONN_EXPLICIT,
530 } auto_connect;
531
532 struct hci_conn *conn;
533 bool explicit_connect;
534};
535
536extern struct list_head hci_dev_list;
537extern struct list_head hci_cb_list;
538extern rwlock_t hci_dev_list_lock;
539extern struct mutex hci_cb_list_lock;
540
541#define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
542#define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
543#define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
544#define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
545#define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
546#define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
547#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
548
549#define hci_dev_clear_volatile_flags(hdev) \
550 do { \
551 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
552 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
553 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
554 } while (0)
555
556
557int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
558int l2cap_disconn_ind(struct hci_conn *hcon);
559void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
560
561#if IS_ENABLED(CONFIG_BT_BREDR)
562int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
563void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
564#else
565static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
566 __u8 *flags)
567{
568 return 0;
569}
570
571static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
572{
573}
574#endif
575
576
577#define INQUIRY_CACHE_AGE_MAX (HZ*30)
578#define INQUIRY_ENTRY_AGE_MAX (HZ*60)
579
580static inline void discovery_init(struct hci_dev *hdev)
581{
582 hdev->discovery.state = DISCOVERY_STOPPED;
583 INIT_LIST_HEAD(&hdev->discovery.all);
584 INIT_LIST_HEAD(&hdev->discovery.unknown);
585 INIT_LIST_HEAD(&hdev->discovery.resolve);
586 hdev->discovery.report_invalid_rssi = true;
587 hdev->discovery.rssi = HCI_RSSI_INVALID;
588}
589
590static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
591{
592 hdev->discovery.result_filtering = false;
593 hdev->discovery.report_invalid_rssi = true;
594 hdev->discovery.rssi = HCI_RSSI_INVALID;
595 hdev->discovery.uuid_count = 0;
596 kfree(hdev->discovery.uuids);
597 hdev->discovery.uuids = NULL;
598 hdev->discovery.scan_start = 0;
599 hdev->discovery.scan_duration = 0;
600}
601
602bool hci_discovery_active(struct hci_dev *hdev);
603
604void hci_discovery_set_state(struct hci_dev *hdev, int state);
605
606static inline int inquiry_cache_empty(struct hci_dev *hdev)
607{
608 return list_empty(&hdev->discovery.all);
609}
610
611static inline long inquiry_cache_age(struct hci_dev *hdev)
612{
613 struct discovery_state *c = &hdev->discovery;
614 return jiffies - c->timestamp;
615}
616
617static inline long inquiry_entry_age(struct inquiry_entry *e)
618{
619 return jiffies - e->timestamp;
620}
621
622struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
623 bdaddr_t *bdaddr);
624struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
625 bdaddr_t *bdaddr);
626struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
627 bdaddr_t *bdaddr,
628 int state);
629void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
630 struct inquiry_entry *ie);
631u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
632 bool name_known);
633void hci_inquiry_cache_flush(struct hci_dev *hdev);
634
635
636enum {
637 HCI_CONN_AUTH_PEND,
638 HCI_CONN_REAUTH_PEND,
639 HCI_CONN_ENCRYPT_PEND,
640 HCI_CONN_RSWITCH_PEND,
641 HCI_CONN_MODE_CHANGE_PEND,
642 HCI_CONN_SCO_SETUP_PEND,
643 HCI_CONN_MGMT_CONNECTED,
644 HCI_CONN_SSP_ENABLED,
645 HCI_CONN_SC_ENABLED,
646 HCI_CONN_AES_CCM,
647 HCI_CONN_POWER_SAVE,
648 HCI_CONN_FLUSH_KEY,
649 HCI_CONN_ENCRYPT,
650 HCI_CONN_AUTH,
651 HCI_CONN_SECURE,
652 HCI_CONN_FIPS,
653 HCI_CONN_STK_ENCRYPT,
654 HCI_CONN_AUTH_INITIATOR,
655 HCI_CONN_DROP,
656 HCI_CONN_PARAM_REMOVAL_PEND,
657 HCI_CONN_NEW_LINK_KEY,
658 HCI_CONN_SCANNING,
659 HCI_CONN_AUTH_FAILURE,
660};
661
662static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
663{
664 struct hci_dev *hdev = conn->hdev;
665 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
666 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
667}
668
669static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
670{
671 struct hci_dev *hdev = conn->hdev;
672 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
673 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
674}
675
676static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
677{
678 struct hci_conn_hash *h = &hdev->conn_hash;
679 list_add_rcu(&c->list, &h->list);
680 switch (c->type) {
681 case ACL_LINK:
682 h->acl_num++;
683 break;
684 case AMP_LINK:
685 h->amp_num++;
686 break;
687 case LE_LINK:
688 h->le_num++;
689 if (c->role == HCI_ROLE_SLAVE)
690 h->le_num_slave++;
691 break;
692 case SCO_LINK:
693 case ESCO_LINK:
694 h->sco_num++;
695 break;
696 }
697}
698
699static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
700{
701 struct hci_conn_hash *h = &hdev->conn_hash;
702
703 list_del_rcu(&c->list);
704 synchronize_rcu();
705
706 switch (c->type) {
707 case ACL_LINK:
708 h->acl_num--;
709 break;
710 case AMP_LINK:
711 h->amp_num--;
712 break;
713 case LE_LINK:
714 h->le_num--;
715 if (c->role == HCI_ROLE_SLAVE)
716 h->le_num_slave--;
717 break;
718 case SCO_LINK:
719 case ESCO_LINK:
720 h->sco_num--;
721 break;
722 }
723}
724
725static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
726{
727 struct hci_conn_hash *h = &hdev->conn_hash;
728 switch (type) {
729 case ACL_LINK:
730 return h->acl_num;
731 case AMP_LINK:
732 return h->amp_num;
733 case LE_LINK:
734 return h->le_num;
735 case SCO_LINK:
736 case ESCO_LINK:
737 return h->sco_num;
738 default:
739 return 0;
740 }
741}
742
743static inline unsigned int hci_conn_count(struct hci_dev *hdev)
744{
745 struct hci_conn_hash *c = &hdev->conn_hash;
746
747 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
748}
749
750static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
751{
752 struct hci_conn_hash *h = &hdev->conn_hash;
753 struct hci_conn *c;
754 __u8 type = INVALID_LINK;
755
756 rcu_read_lock();
757
758 list_for_each_entry_rcu(c, &h->list, list) {
759 if (c->handle == handle) {
760 type = c->type;
761 break;
762 }
763 }
764
765 rcu_read_unlock();
766
767 return type;
768}
769
770static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
771 __u16 handle)
772{
773 struct hci_conn_hash *h = &hdev->conn_hash;
774 struct hci_conn *c;
775
776 rcu_read_lock();
777
778 list_for_each_entry_rcu(c, &h->list, list) {
779 if (c->handle == handle) {
780 rcu_read_unlock();
781 return c;
782 }
783 }
784 rcu_read_unlock();
785
786 return NULL;
787}
788
789static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
790 __u8 type, bdaddr_t *ba)
791{
792 struct hci_conn_hash *h = &hdev->conn_hash;
793 struct hci_conn *c;
794
795 rcu_read_lock();
796
797 list_for_each_entry_rcu(c, &h->list, list) {
798 if (c->type == type && !bacmp(&c->dst, ba)) {
799 rcu_read_unlock();
800 return c;
801 }
802 }
803
804 rcu_read_unlock();
805
806 return NULL;
807}
808
809static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
810 bdaddr_t *ba,
811 __u8 ba_type)
812{
813 struct hci_conn_hash *h = &hdev->conn_hash;
814 struct hci_conn *c;
815
816 rcu_read_lock();
817
818 list_for_each_entry_rcu(c, &h->list, list) {
819 if (c->type != LE_LINK)
820 continue;
821
822 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
823 rcu_read_unlock();
824 return c;
825 }
826 }
827
828 rcu_read_unlock();
829
830 return NULL;
831}
832
833static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
834 __u8 type, __u16 state)
835{
836 struct hci_conn_hash *h = &hdev->conn_hash;
837 struct hci_conn *c;
838
839 rcu_read_lock();
840
841 list_for_each_entry_rcu(c, &h->list, list) {
842 if (c->type == type && c->state == state) {
843 rcu_read_unlock();
844 return c;
845 }
846 }
847
848 rcu_read_unlock();
849
850 return NULL;
851}
852
853static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
854{
855 struct hci_conn_hash *h = &hdev->conn_hash;
856 struct hci_conn *c;
857
858 rcu_read_lock();
859
860 list_for_each_entry_rcu(c, &h->list, list) {
861 if (c->type == LE_LINK && c->state == BT_CONNECT &&
862 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
863 rcu_read_unlock();
864 return c;
865 }
866 }
867
868 rcu_read_unlock();
869
870 return NULL;
871}
872
873int hci_disconnect(struct hci_conn *conn, __u8 reason);
874bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
875void hci_sco_setup(struct hci_conn *conn, __u8 status);
876
877struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
878 u8 role);
879int hci_conn_del(struct hci_conn *conn);
880void hci_conn_hash_flush(struct hci_dev *hdev);
881void hci_conn_check_pending(struct hci_dev *hdev);
882
883struct hci_chan *hci_chan_create(struct hci_conn *conn);
884void hci_chan_del(struct hci_chan *chan);
885void hci_chan_list_flush(struct hci_conn *conn);
886struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
887
888struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
889 u8 dst_type, u8 sec_level,
890 u16 conn_timeout);
891struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
892 u8 dst_type, u8 sec_level, u16 conn_timeout,
893 u8 role);
894struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
895 u8 sec_level, u8 auth_type);
896struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
897 __u16 setting);
898int hci_conn_check_link_mode(struct hci_conn *conn);
899int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
900int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
901 bool initiator);
902int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
903
904void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
905
906void hci_le_conn_failed(struct hci_conn *conn, u8 status);
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
930{
931 get_device(&conn->dev);
932 return conn;
933}
934
935static inline void hci_conn_put(struct hci_conn *conn)
936{
937 put_device(&conn->dev);
938}
939
940static inline void hci_conn_hold(struct hci_conn *conn)
941{
942 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
943
944 atomic_inc(&conn->refcnt);
945 cancel_delayed_work(&conn->disc_work);
946}
947
948static inline void hci_conn_drop(struct hci_conn *conn)
949{
950 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
951
952 if (atomic_dec_and_test(&conn->refcnt)) {
953 unsigned long timeo;
954
955 switch (conn->type) {
956 case ACL_LINK:
957 case LE_LINK:
958 cancel_delayed_work(&conn->idle_work);
959 if (conn->state == BT_CONNECTED) {
960 timeo = conn->disc_timeout;
961 if (!conn->out)
962 timeo *= 2;
963 } else {
964 timeo = 0;
965 }
966 break;
967
968 case AMP_LINK:
969 timeo = conn->disc_timeout;
970 break;
971
972 default:
973 timeo = 0;
974 break;
975 }
976
977 cancel_delayed_work(&conn->disc_work);
978 queue_delayed_work(conn->hdev->workqueue,
979 &conn->disc_work, timeo);
980 }
981}
982
983
984static inline void hci_dev_put(struct hci_dev *d)
985{
986 BT_DBG("%s orig refcnt %d", d->name,
987 atomic_read(&d->dev.kobj.kref.refcount));
988
989 put_device(&d->dev);
990}
991
992static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
993{
994 BT_DBG("%s orig refcnt %d", d->name,
995 atomic_read(&d->dev.kobj.kref.refcount));
996
997 get_device(&d->dev);
998 return d;
999}
1000
1001#define hci_dev_lock(d) mutex_lock(&d->lock)
1002#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1003
1004#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1005#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1006
1007static inline void *hci_get_drvdata(struct hci_dev *hdev)
1008{
1009 return dev_get_drvdata(&hdev->dev);
1010}
1011
1012static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1013{
1014 dev_set_drvdata(&hdev->dev, data);
1015}
1016
1017struct hci_dev *hci_dev_get(int index);
1018struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
1019
1020struct hci_dev *hci_alloc_dev(void);
1021void hci_free_dev(struct hci_dev *hdev);
1022int hci_register_dev(struct hci_dev *hdev);
1023void hci_unregister_dev(struct hci_dev *hdev);
1024int hci_suspend_dev(struct hci_dev *hdev);
1025int hci_resume_dev(struct hci_dev *hdev);
1026int hci_reset_dev(struct hci_dev *hdev);
1027int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1028int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1029void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1030void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1031int hci_dev_open(__u16 dev);
1032int hci_dev_close(__u16 dev);
1033int hci_dev_do_close(struct hci_dev *hdev);
1034int hci_dev_reset(__u16 dev);
1035int hci_dev_reset_stat(__u16 dev);
1036int hci_dev_cmd(unsigned int cmd, void __user *arg);
1037int hci_get_dev_list(void __user *arg);
1038int hci_get_dev_info(void __user *arg);
1039int hci_get_conn_list(void __user *arg);
1040int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1041int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1042int hci_inquiry(void __user *arg);
1043
1044struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1045 bdaddr_t *bdaddr, u8 type);
1046int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1047int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1048void hci_bdaddr_list_clear(struct list_head *list);
1049
1050struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1051 bdaddr_t *addr, u8 addr_type);
1052struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1053 bdaddr_t *addr, u8 addr_type);
1054void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1055void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1056
1057struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1058 bdaddr_t *addr,
1059 u8 addr_type);
1060
1061void hci_uuids_clear(struct hci_dev *hdev);
1062
1063void hci_link_keys_clear(struct hci_dev *hdev);
1064struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1065struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1066 bdaddr_t *bdaddr, u8 *val, u8 type,
1067 u8 pin_len, bool *persistent);
1068struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1069 u8 addr_type, u8 type, u8 authenticated,
1070 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1071struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1072 u8 addr_type, u8 role);
1073int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1074void hci_smp_ltks_clear(struct hci_dev *hdev);
1075int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1076
1077struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1078struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1079 u8 addr_type);
1080struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1081 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1082void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1083void hci_smp_irks_clear(struct hci_dev *hdev);
1084
1085bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1086
1087void hci_remote_oob_data_clear(struct hci_dev *hdev);
1088struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1089 bdaddr_t *bdaddr, u8 bdaddr_type);
1090int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1091 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1092 u8 *hash256, u8 *rand256);
1093int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1094 u8 bdaddr_type);
1095
1096void hci_adv_instances_clear(struct hci_dev *hdev);
1097struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1098struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1099int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1100 u16 adv_data_len, u8 *adv_data,
1101 u16 scan_rsp_len, u8 *scan_rsp_data,
1102 u16 timeout, u16 duration);
1103int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1104
1105void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1106
1107void hci_init_sysfs(struct hci_dev *hdev);
1108void hci_conn_init_sysfs(struct hci_conn *conn);
1109void hci_conn_add_sysfs(struct hci_conn *conn);
1110void hci_conn_del_sysfs(struct hci_conn *conn);
1111
1112#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1113
1114
1115#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1116#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1117#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1118#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1119#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1120#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1121#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1122#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1123#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1124#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1125#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1126#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1127#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1128#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1129#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1130#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1131#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1132#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1133#define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1134
1135
1136#define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1137#define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1138#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1139#define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1140#define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1141#define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1142
1143
1144#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1145#define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1146#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1147#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1148
1149#define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1150 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1151#define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1152 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1153
1154
1155#define HCI_PROTO_DEFER 0x01
1156
1157static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1158 __u8 type, __u8 *flags)
1159{
1160 switch (type) {
1161 case ACL_LINK:
1162 return l2cap_connect_ind(hdev, bdaddr);
1163
1164 case SCO_LINK:
1165 case ESCO_LINK:
1166 return sco_connect_ind(hdev, bdaddr, flags);
1167
1168 default:
1169 BT_ERR("unknown link type %d", type);
1170 return -EINVAL;
1171 }
1172}
1173
1174static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1175{
1176 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1177 return HCI_ERROR_REMOTE_USER_TERM;
1178
1179 return l2cap_disconn_ind(conn);
1180}
1181
1182
1183struct hci_cb {
1184 struct list_head list;
1185
1186 char *name;
1187
1188 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1189 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1190 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1191 __u8 encrypt);
1192 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1193 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1194};
1195
1196static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1197{
1198 struct hci_cb *cb;
1199
1200 mutex_lock(&hci_cb_list_lock);
1201 list_for_each_entry(cb, &hci_cb_list, list) {
1202 if (cb->connect_cfm)
1203 cb->connect_cfm(conn, status);
1204 }
1205 mutex_unlock(&hci_cb_list_lock);
1206
1207 if (conn->connect_cfm_cb)
1208 conn->connect_cfm_cb(conn, status);
1209}
1210
1211static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1212{
1213 struct hci_cb *cb;
1214
1215 mutex_lock(&hci_cb_list_lock);
1216 list_for_each_entry(cb, &hci_cb_list, list) {
1217 if (cb->disconn_cfm)
1218 cb->disconn_cfm(conn, reason);
1219 }
1220 mutex_unlock(&hci_cb_list_lock);
1221
1222 if (conn->disconn_cfm_cb)
1223 conn->disconn_cfm_cb(conn, reason);
1224}
1225
1226static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1227{
1228 struct hci_cb *cb;
1229 __u8 encrypt;
1230
1231 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1232 return;
1233
1234 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1235
1236 mutex_lock(&hci_cb_list_lock);
1237 list_for_each_entry(cb, &hci_cb_list, list) {
1238 if (cb->security_cfm)
1239 cb->security_cfm(conn, status, encrypt);
1240 }
1241 mutex_unlock(&hci_cb_list_lock);
1242
1243 if (conn->security_cfm_cb)
1244 conn->security_cfm_cb(conn, status);
1245}
1246
1247static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1248 __u8 encrypt)
1249{
1250 struct hci_cb *cb;
1251
1252 if (conn->sec_level == BT_SECURITY_SDP)
1253 conn->sec_level = BT_SECURITY_LOW;
1254
1255 if (conn->pending_sec_level > conn->sec_level)
1256 conn->sec_level = conn->pending_sec_level;
1257
1258 mutex_lock(&hci_cb_list_lock);
1259 list_for_each_entry(cb, &hci_cb_list, list) {
1260 if (cb->security_cfm)
1261 cb->security_cfm(conn, status, encrypt);
1262 }
1263 mutex_unlock(&hci_cb_list_lock);
1264
1265 if (conn->security_cfm_cb)
1266 conn->security_cfm_cb(conn, status);
1267}
1268
1269static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1270{
1271 struct hci_cb *cb;
1272
1273 mutex_lock(&hci_cb_list_lock);
1274 list_for_each_entry(cb, &hci_cb_list, list) {
1275 if (cb->key_change_cfm)
1276 cb->key_change_cfm(conn, status);
1277 }
1278 mutex_unlock(&hci_cb_list_lock);
1279}
1280
1281static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1282 __u8 role)
1283{
1284 struct hci_cb *cb;
1285
1286 mutex_lock(&hci_cb_list_lock);
1287 list_for_each_entry(cb, &hci_cb_list, list) {
1288 if (cb->role_switch_cfm)
1289 cb->role_switch_cfm(conn, status, role);
1290 }
1291 mutex_unlock(&hci_cb_list_lock);
1292}
1293
1294static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1295 size_t *data_len)
1296{
1297 size_t parsed = 0;
1298
1299 if (eir_len < 2)
1300 return NULL;
1301
1302 while (parsed < eir_len - 1) {
1303 u8 field_len = eir[0];
1304
1305 if (field_len == 0)
1306 break;
1307
1308 parsed += field_len + 1;
1309
1310 if (parsed > eir_len)
1311 break;
1312
1313 if (eir[1] != type) {
1314 eir += field_len + 1;
1315 continue;
1316 }
1317
1318
1319 if (field_len == 1)
1320 return NULL;
1321
1322 if (data_len)
1323 *data_len = field_len - 1;
1324
1325 return &eir[2];
1326 }
1327
1328 return NULL;
1329}
1330
1331static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1332{
1333 if (addr_type != ADDR_LE_DEV_RANDOM)
1334 return false;
1335
1336 if ((bdaddr->b[5] & 0xc0) == 0x40)
1337 return true;
1338
1339 return false;
1340}
1341
1342static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1343{
1344 if (addr_type == ADDR_LE_DEV_PUBLIC)
1345 return true;
1346
1347
1348 if ((addr->b[5] & 0xc0) == 0xc0)
1349 return true;
1350
1351 return false;
1352}
1353
1354static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1355 bdaddr_t *bdaddr, u8 addr_type)
1356{
1357 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1358 return NULL;
1359
1360 return hci_find_irk_by_rpa(hdev, bdaddr);
1361}
1362
1363static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1364 u16 to_multiplier)
1365{
1366 u16 max_latency;
1367
1368 if (min > max || min < 6 || max > 3200)
1369 return -EINVAL;
1370
1371 if (to_multiplier < 10 || to_multiplier > 3200)
1372 return -EINVAL;
1373
1374 if (max >= to_multiplier * 8)
1375 return -EINVAL;
1376
1377 max_latency = (to_multiplier * 4 / max) - 1;
1378 if (latency > 499 || latency > max_latency)
1379 return -EINVAL;
1380
1381 return 0;
1382}
1383
1384int hci_register_cb(struct hci_cb *hcb);
1385int hci_unregister_cb(struct hci_cb *hcb);
1386
1387struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1388 const void *param, u32 timeout);
1389struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1390 const void *param, u8 event, u32 timeout);
1391
1392int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1393 const void *param);
1394void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1395void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1396
1397void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1398
1399struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1400 const void *param, u32 timeout);
1401
1402
1403void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1404void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1405 int flag, struct sock *skip_sk);
1406void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1407
1408void hci_sock_dev_event(struct hci_dev *hdev, int event);
1409
1410#define HCI_MGMT_VAR_LEN BIT(0)
1411#define HCI_MGMT_NO_HDEV BIT(1)
1412#define HCI_MGMT_UNTRUSTED BIT(2)
1413#define HCI_MGMT_UNCONFIGURED BIT(3)
1414
1415struct hci_mgmt_handler {
1416 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1417 u16 data_len);
1418 size_t data_len;
1419 unsigned long flags;
1420};
1421
1422struct hci_mgmt_chan {
1423 struct list_head list;
1424 unsigned short channel;
1425 size_t handler_count;
1426 const struct hci_mgmt_handler *handlers;
1427 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1428};
1429
1430int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1431void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1432
1433
1434#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1435#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1436 BIT(BDADDR_LE_RANDOM))
1437#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1438 BIT(BDADDR_LE_PUBLIC) | \
1439 BIT(BDADDR_LE_RANDOM))
1440
1441
1442
1443
1444#define DISCOV_LE_SCAN_WIN 0x12
1445#define DISCOV_LE_SCAN_INT 0x12
1446#define DISCOV_LE_TIMEOUT 10240
1447#define DISCOV_INTERLEAVED_TIMEOUT 5120
1448#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1449#define DISCOV_BREDR_INQUIRY_LEN 0x08
1450#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200)
1451
1452int mgmt_new_settings(struct hci_dev *hdev);
1453void mgmt_index_added(struct hci_dev *hdev);
1454void mgmt_index_removed(struct hci_dev *hdev);
1455void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1456void mgmt_power_on(struct hci_dev *hdev, int err);
1457void __mgmt_power_off(struct hci_dev *hdev);
1458void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1459 bool persistent);
1460void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1461 u32 flags, u8 *name, u8 name_len);
1462void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1463 u8 link_type, u8 addr_type, u8 reason,
1464 bool mgmt_connected);
1465void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1466 u8 link_type, u8 addr_type, u8 status);
1467void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1468 u8 addr_type, u8 status);
1469void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1470void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1471 u8 status);
1472void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1473 u8 status);
1474int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1475 u8 link_type, u8 addr_type, u32 value,
1476 u8 confirm_hint);
1477int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1478 u8 link_type, u8 addr_type, u8 status);
1479int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1480 u8 link_type, u8 addr_type, u8 status);
1481int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1482 u8 link_type, u8 addr_type);
1483int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1484 u8 link_type, u8 addr_type, u8 status);
1485int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1486 u8 link_type, u8 addr_type, u8 status);
1487int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1488 u8 link_type, u8 addr_type, u32 passkey,
1489 u8 entered);
1490void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1491void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1492void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1493void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1494 u8 status);
1495void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1496void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1497void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1498void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1499 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1500 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1501void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1502 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1503void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1504bool mgmt_powering_down(struct hci_dev *hdev);
1505void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1506void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1507void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1508 bool persistent);
1509void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1510 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1511 u16 max_interval, u16 latency, u16 timeout);
1512void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1513bool mgmt_get_connectable(struct hci_dev *hdev);
1514void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1515void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1516u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1517void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1518 u8 instance);
1519void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1520 u8 instance);
1521
1522u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1523 u16 to_multiplier);
1524void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1525 __u8 ltk[16], __u8 key_size);
1526
1527void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1528 u8 *bdaddr_type);
1529
1530#define SCO_AIRMODE_MASK 0x0003
1531#define SCO_AIRMODE_CVSD 0x0000
1532#define SCO_AIRMODE_TRANSP 0x0003
1533
1534#endif
1535
