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