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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 __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
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
580#define INQUIRY_CACHE_AGE_MAX (HZ*30)
581#define INQUIRY_ENTRY_AGE_MAX (HZ*60)
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
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
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
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
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
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
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
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
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
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
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
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
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
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
1448
1449
1450#define DISCOV_LE_SCAN_WIN 0x12
1451#define DISCOV_LE_SCAN_INT 0x12
1452#define DISCOV_LE_TIMEOUT 10240
1453#define DISCOV_INTERLEAVED_TIMEOUT 5120
1454#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1455#define DISCOV_BREDR_INQUIRY_LEN 0x08
1456#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200)
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
1542
