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