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Bluetooth: Add specific connection parameter clear functions
[deliverable/linux.git] / include / net / bluetooth / hci_core.h
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 #ifndef __HCI_CORE_H
26 #define __HCI_CORE_H
27
28 #include <net/bluetooth/hci.h>
29
30 /* HCI priority */
31 #define HCI_PRIO_MAX 7
32
33 /* HCI Core structures */
34 struct inquiry_data {
35 bdaddr_t bdaddr;
36 __u8 pscan_rep_mode;
37 __u8 pscan_period_mode;
38 __u8 pscan_mode;
39 __u8 dev_class[3];
40 __le16 clock_offset;
41 __s8 rssi;
42 __u8 ssp_mode;
43 };
44
45 struct inquiry_entry {
46 struct list_head all; /* inq_cache.all */
47 struct list_head list; /* unknown or resolve */
48 enum {
49 NAME_NOT_KNOWN,
50 NAME_NEEDED,
51 NAME_PENDING,
52 NAME_KNOWN,
53 } name_state;
54 __u32 timestamp;
55 struct inquiry_data data;
56 };
57
58 struct discovery_state {
59 int type;
60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
63 DISCOVERY_FINDING,
64 DISCOVERY_RESOLVING,
65 DISCOVERY_STOPPING,
66 } state;
67 struct list_head all; /* All devices found during inquiry */
68 struct list_head unknown; /* Name state not known */
69 struct list_head resolve; /* Name needs to be resolved */
70 __u32 timestamp;
71 bdaddr_t last_adv_addr;
72 u8 last_adv_addr_type;
73 s8 last_adv_rssi;
74 u32 last_adv_flags;
75 u8 last_adv_data[HCI_MAX_AD_LENGTH];
76 u8 last_adv_data_len;
77 };
78
79 struct hci_conn_hash {
80 struct list_head list;
81 unsigned int acl_num;
82 unsigned int amp_num;
83 unsigned int sco_num;
84 unsigned int le_num;
85 };
86
87 struct bdaddr_list {
88 struct list_head list;
89 bdaddr_t bdaddr;
90 u8 bdaddr_type;
91 };
92
93 struct bt_uuid {
94 struct list_head list;
95 u8 uuid[16];
96 u8 size;
97 u8 svc_hint;
98 };
99
100 struct smp_csrk {
101 bdaddr_t bdaddr;
102 u8 bdaddr_type;
103 u8 master;
104 u8 val[16];
105 };
106
107 struct smp_ltk {
108 struct list_head list;
109 bdaddr_t bdaddr;
110 u8 bdaddr_type;
111 u8 authenticated;
112 u8 type;
113 u8 enc_size;
114 __le16 ediv;
115 __le64 rand;
116 u8 val[16];
117 };
118
119 struct smp_irk {
120 struct list_head list;
121 bdaddr_t rpa;
122 bdaddr_t bdaddr;
123 u8 addr_type;
124 u8 val[16];
125 };
126
127 struct link_key {
128 struct list_head list;
129 bdaddr_t bdaddr;
130 u8 type;
131 u8 val[HCI_LINK_KEY_SIZE];
132 u8 pin_len;
133 };
134
135 struct oob_data {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 hash192[16];
139 u8 randomizer192[16];
140 u8 hash256[16];
141 u8 randomizer256[16];
142 };
143
144 #define HCI_MAX_SHORT_NAME_LENGTH 10
145
146 /* Default LE RPA expiry time, 15 minutes */
147 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
148
149 /* Default min/max age of connection information (1s/3s) */
150 #define DEFAULT_CONN_INFO_MIN_AGE 1000
151 #define DEFAULT_CONN_INFO_MAX_AGE 3000
152
153 struct amp_assoc {
154 __u16 len;
155 __u16 offset;
156 __u16 rem_len;
157 __u16 len_so_far;
158 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
159 };
160
161 #define HCI_MAX_PAGES 3
162
163 #define NUM_REASSEMBLY 4
164 struct hci_dev {
165 struct list_head list;
166 struct mutex lock;
167
168 char name[8];
169 unsigned long flags;
170 __u16 id;
171 __u8 bus;
172 __u8 dev_type;
173 bdaddr_t bdaddr;
174 bdaddr_t public_addr;
175 bdaddr_t random_addr;
176 bdaddr_t static_addr;
177 __u8 adv_addr_type;
178 __u8 dev_name[HCI_MAX_NAME_LENGTH];
179 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
180 __u8 eir[HCI_MAX_EIR_LENGTH];
181 __u8 dev_class[3];
182 __u8 major_class;
183 __u8 minor_class;
184 __u8 max_page;
185 __u8 features[HCI_MAX_PAGES][8];
186 __u8 le_features[8];
187 __u8 le_white_list_size;
188 __u8 le_states[8];
189 __u8 commands[64];
190 __u8 hci_ver;
191 __u16 hci_rev;
192 __u8 lmp_ver;
193 __u16 manufacturer;
194 __u16 lmp_subver;
195 __u16 voice_setting;
196 __u8 num_iac;
197 __u8 io_capability;
198 __s8 inq_tx_power;
199 __u16 page_scan_interval;
200 __u16 page_scan_window;
201 __u8 page_scan_type;
202 __u8 le_adv_channel_map;
203 __u8 le_scan_type;
204 __u16 le_scan_interval;
205 __u16 le_scan_window;
206 __u16 le_conn_min_interval;
207 __u16 le_conn_max_interval;
208 __u16 le_conn_latency;
209 __u16 le_supv_timeout;
210 __u16 discov_interleaved_timeout;
211 __u16 conn_info_min_age;
212 __u16 conn_info_max_age;
213 __u8 ssp_debug_mode;
214 __u32 clock;
215
216 __u16 devid_source;
217 __u16 devid_vendor;
218 __u16 devid_product;
219 __u16 devid_version;
220
221 __u16 pkt_type;
222 __u16 esco_type;
223 __u16 link_policy;
224 __u16 link_mode;
225
226 __u32 idle_timeout;
227 __u16 sniff_min_interval;
228 __u16 sniff_max_interval;
229
230 __u8 amp_status;
231 __u32 amp_total_bw;
232 __u32 amp_max_bw;
233 __u32 amp_min_latency;
234 __u32 amp_max_pdu;
235 __u8 amp_type;
236 __u16 amp_pal_cap;
237 __u16 amp_assoc_size;
238 __u32 amp_max_flush_to;
239 __u32 amp_be_flush_to;
240
241 struct amp_assoc loc_assoc;
242
243 __u8 flow_ctl_mode;
244
245 unsigned int auto_accept_delay;
246
247 unsigned long quirks;
248
249 atomic_t cmd_cnt;
250 unsigned int acl_cnt;
251 unsigned int sco_cnt;
252 unsigned int le_cnt;
253
254 unsigned int acl_mtu;
255 unsigned int sco_mtu;
256 unsigned int le_mtu;
257 unsigned int acl_pkts;
258 unsigned int sco_pkts;
259 unsigned int le_pkts;
260
261 __u16 block_len;
262 __u16 block_mtu;
263 __u16 num_blocks;
264 __u16 block_cnt;
265
266 unsigned long acl_last_tx;
267 unsigned long sco_last_tx;
268 unsigned long le_last_tx;
269
270 struct workqueue_struct *workqueue;
271 struct workqueue_struct *req_workqueue;
272
273 struct work_struct power_on;
274 struct delayed_work power_off;
275
276 __u16 discov_timeout;
277 struct delayed_work discov_off;
278
279 struct delayed_work service_cache;
280
281 struct delayed_work cmd_timer;
282
283 struct work_struct rx_work;
284 struct work_struct cmd_work;
285 struct work_struct tx_work;
286
287 struct sk_buff_head rx_q;
288 struct sk_buff_head raw_q;
289 struct sk_buff_head cmd_q;
290
291 struct sk_buff *recv_evt;
292 struct sk_buff *sent_cmd;
293 struct sk_buff *reassembly[NUM_REASSEMBLY];
294
295 struct mutex req_lock;
296 wait_queue_head_t req_wait_q;
297 __u32 req_status;
298 __u32 req_result;
299
300 struct crypto_blkcipher *tfm_aes;
301
302 struct discovery_state discovery;
303 struct hci_conn_hash conn_hash;
304
305 struct list_head mgmt_pending;
306 struct list_head blacklist;
307 struct list_head uuids;
308 struct list_head link_keys;
309 struct list_head long_term_keys;
310 struct list_head identity_resolving_keys;
311 struct list_head remote_oob_data;
312 struct list_head le_white_list;
313 struct list_head le_conn_params;
314 struct list_head pend_le_conns;
315
316 struct hci_dev_stats stat;
317
318 atomic_t promisc;
319
320 struct dentry *debugfs;
321
322 struct device dev;
323
324 struct rfkill *rfkill;
325
326 unsigned long dbg_flags;
327 unsigned long dev_flags;
328
329 struct delayed_work le_scan_disable;
330
331 __s8 adv_tx_power;
332 __u8 adv_data[HCI_MAX_AD_LENGTH];
333 __u8 adv_data_len;
334 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
335 __u8 scan_rsp_data_len;
336
337 __u8 irk[16];
338 __u32 rpa_timeout;
339 struct delayed_work rpa_expired;
340 bdaddr_t rpa;
341
342 int (*open)(struct hci_dev *hdev);
343 int (*close)(struct hci_dev *hdev);
344 int (*flush)(struct hci_dev *hdev);
345 int (*setup)(struct hci_dev *hdev);
346 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
347 void (*notify)(struct hci_dev *hdev, unsigned int evt);
348 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
349 };
350
351 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
352
353 struct hci_conn {
354 struct list_head list;
355
356 atomic_t refcnt;
357
358 bdaddr_t dst;
359 __u8 dst_type;
360 bdaddr_t src;
361 __u8 src_type;
362 bdaddr_t init_addr;
363 __u8 init_addr_type;
364 bdaddr_t resp_addr;
365 __u8 resp_addr_type;
366 __u16 handle;
367 __u16 state;
368 __u8 mode;
369 __u8 type;
370 bool out;
371 __u8 attempt;
372 __u8 dev_class[3];
373 __u8 features[HCI_MAX_PAGES][8];
374 __u16 pkt_type;
375 __u16 link_policy;
376 __u8 key_type;
377 __u8 auth_type;
378 __u8 sec_level;
379 __u8 pending_sec_level;
380 __u8 pin_length;
381 __u8 enc_key_size;
382 __u8 io_capability;
383 __u32 passkey_notify;
384 __u8 passkey_entered;
385 __u16 disc_timeout;
386 __u16 setting;
387 __u16 le_conn_min_interval;
388 __u16 le_conn_max_interval;
389 __u16 le_conn_interval;
390 __u16 le_conn_latency;
391 __u16 le_supv_timeout;
392 __s8 rssi;
393 __s8 tx_power;
394 __s8 max_tx_power;
395 unsigned long flags;
396
397 __u32 clock;
398 __u16 clock_accuracy;
399
400 unsigned long conn_info_timestamp;
401
402 __u8 remote_cap;
403 __u8 remote_auth;
404 __u8 remote_id;
405
406 unsigned int sent;
407
408 struct sk_buff_head data_q;
409 struct list_head chan_list;
410
411 struct delayed_work disc_work;
412 struct delayed_work auto_accept_work;
413 struct delayed_work idle_work;
414 struct delayed_work le_conn_timeout;
415
416 struct device dev;
417
418 struct hci_dev *hdev;
419 void *l2cap_data;
420 void *sco_data;
421 struct amp_mgr *amp_mgr;
422
423 struct hci_conn *link;
424
425 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
426 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
427 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
428 };
429
430 struct hci_chan {
431 struct list_head list;
432 __u16 handle;
433 struct hci_conn *conn;
434 struct sk_buff_head data_q;
435 unsigned int sent;
436 __u8 state;
437 };
438
439 struct hci_conn_params {
440 struct list_head list;
441
442 bdaddr_t addr;
443 u8 addr_type;
444
445 u16 conn_min_interval;
446 u16 conn_max_interval;
447 u16 conn_latency;
448 u16 supervision_timeout;
449
450 enum {
451 HCI_AUTO_CONN_DISABLED,
452 HCI_AUTO_CONN_ALWAYS,
453 HCI_AUTO_CONN_LINK_LOSS,
454 } auto_connect;
455 };
456
457 extern struct list_head hci_dev_list;
458 extern struct list_head hci_cb_list;
459 extern rwlock_t hci_dev_list_lock;
460 extern rwlock_t hci_cb_list_lock;
461
462 /* ----- HCI interface to upper protocols ----- */
463 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
464 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
465 int l2cap_disconn_ind(struct hci_conn *hcon);
466 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
467 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
468 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
469
470 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
471 void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
472 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
473 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
474
475 /* ----- Inquiry cache ----- */
476 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
477 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
478
479 static inline void discovery_init(struct hci_dev *hdev)
480 {
481 hdev->discovery.state = DISCOVERY_STOPPED;
482 INIT_LIST_HEAD(&hdev->discovery.all);
483 INIT_LIST_HEAD(&hdev->discovery.unknown);
484 INIT_LIST_HEAD(&hdev->discovery.resolve);
485 }
486
487 bool hci_discovery_active(struct hci_dev *hdev);
488
489 void hci_discovery_set_state(struct hci_dev *hdev, int state);
490
491 static inline int inquiry_cache_empty(struct hci_dev *hdev)
492 {
493 return list_empty(&hdev->discovery.all);
494 }
495
496 static inline long inquiry_cache_age(struct hci_dev *hdev)
497 {
498 struct discovery_state *c = &hdev->discovery;
499 return jiffies - c->timestamp;
500 }
501
502 static inline long inquiry_entry_age(struct inquiry_entry *e)
503 {
504 return jiffies - e->timestamp;
505 }
506
507 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
508 bdaddr_t *bdaddr);
509 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
510 bdaddr_t *bdaddr);
511 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
512 bdaddr_t *bdaddr,
513 int state);
514 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
515 struct inquiry_entry *ie);
516 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
517 bool name_known);
518 void hci_inquiry_cache_flush(struct hci_dev *hdev);
519
520 /* ----- HCI Connections ----- */
521 enum {
522 HCI_CONN_AUTH_PEND,
523 HCI_CONN_REAUTH_PEND,
524 HCI_CONN_ENCRYPT_PEND,
525 HCI_CONN_RSWITCH_PEND,
526 HCI_CONN_MODE_CHANGE_PEND,
527 HCI_CONN_SCO_SETUP_PEND,
528 HCI_CONN_LE_SMP_PEND,
529 HCI_CONN_MGMT_CONNECTED,
530 HCI_CONN_SSP_ENABLED,
531 HCI_CONN_SC_ENABLED,
532 HCI_CONN_AES_CCM,
533 HCI_CONN_POWER_SAVE,
534 HCI_CONN_REMOTE_OOB,
535 HCI_CONN_FLUSH_KEY,
536 HCI_CONN_MASTER,
537 HCI_CONN_ENCRYPT,
538 HCI_CONN_AUTH,
539 HCI_CONN_SECURE,
540 HCI_CONN_FIPS,
541 HCI_CONN_STK_ENCRYPT,
542 };
543
544 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
545 {
546 struct hci_dev *hdev = conn->hdev;
547 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
548 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
549 }
550
551 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
552 {
553 struct hci_dev *hdev = conn->hdev;
554 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) &&
555 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
556 }
557
558 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
559 {
560 struct hci_conn_hash *h = &hdev->conn_hash;
561 list_add_rcu(&c->list, &h->list);
562 switch (c->type) {
563 case ACL_LINK:
564 h->acl_num++;
565 break;
566 case AMP_LINK:
567 h->amp_num++;
568 break;
569 case LE_LINK:
570 h->le_num++;
571 break;
572 case SCO_LINK:
573 case ESCO_LINK:
574 h->sco_num++;
575 break;
576 }
577 }
578
579 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
580 {
581 struct hci_conn_hash *h = &hdev->conn_hash;
582
583 list_del_rcu(&c->list);
584 synchronize_rcu();
585
586 switch (c->type) {
587 case ACL_LINK:
588 h->acl_num--;
589 break;
590 case AMP_LINK:
591 h->amp_num--;
592 break;
593 case LE_LINK:
594 h->le_num--;
595 break;
596 case SCO_LINK:
597 case ESCO_LINK:
598 h->sco_num--;
599 break;
600 }
601 }
602
603 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
604 {
605 struct hci_conn_hash *h = &hdev->conn_hash;
606 switch (type) {
607 case ACL_LINK:
608 return h->acl_num;
609 case AMP_LINK:
610 return h->amp_num;
611 case LE_LINK:
612 return h->le_num;
613 case SCO_LINK:
614 case ESCO_LINK:
615 return h->sco_num;
616 default:
617 return 0;
618 }
619 }
620
621 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
622 {
623 struct hci_conn_hash *c = &hdev->conn_hash;
624
625 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
626 }
627
628 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
629 __u16 handle)
630 {
631 struct hci_conn_hash *h = &hdev->conn_hash;
632 struct hci_conn *c;
633
634 rcu_read_lock();
635
636 list_for_each_entry_rcu(c, &h->list, list) {
637 if (c->handle == handle) {
638 rcu_read_unlock();
639 return c;
640 }
641 }
642 rcu_read_unlock();
643
644 return NULL;
645 }
646
647 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
648 __u8 type, bdaddr_t *ba)
649 {
650 struct hci_conn_hash *h = &hdev->conn_hash;
651 struct hci_conn *c;
652
653 rcu_read_lock();
654
655 list_for_each_entry_rcu(c, &h->list, list) {
656 if (c->type == type && !bacmp(&c->dst, ba)) {
657 rcu_read_unlock();
658 return c;
659 }
660 }
661
662 rcu_read_unlock();
663
664 return NULL;
665 }
666
667 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
668 __u8 type, __u16 state)
669 {
670 struct hci_conn_hash *h = &hdev->conn_hash;
671 struct hci_conn *c;
672
673 rcu_read_lock();
674
675 list_for_each_entry_rcu(c, &h->list, list) {
676 if (c->type == type && c->state == state) {
677 rcu_read_unlock();
678 return c;
679 }
680 }
681
682 rcu_read_unlock();
683
684 return NULL;
685 }
686
687 void hci_disconnect(struct hci_conn *conn, __u8 reason);
688 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
689 void hci_sco_setup(struct hci_conn *conn, __u8 status);
690
691 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
692 int hci_conn_del(struct hci_conn *conn);
693 void hci_conn_hash_flush(struct hci_dev *hdev);
694 void hci_conn_check_pending(struct hci_dev *hdev);
695
696 struct hci_chan *hci_chan_create(struct hci_conn *conn);
697 void hci_chan_del(struct hci_chan *chan);
698 void hci_chan_list_flush(struct hci_conn *conn);
699 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
700
701 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
702 u8 dst_type, u8 sec_level, u8 auth_type);
703 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
704 u8 sec_level, u8 auth_type);
705 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
706 __u16 setting);
707 int hci_conn_check_link_mode(struct hci_conn *conn);
708 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
709 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
710 int hci_conn_change_link_key(struct hci_conn *conn);
711 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
712
713 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
714
715 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
716
717 /*
718 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
719 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
720 * working or anything else. They just guarantee that the object is available
721 * and can be dereferenced. So you can use its locks, local variables and any
722 * other constant data.
723 * Before accessing runtime data, you _must_ lock the object and then check that
724 * it is still running. As soon as you release the locks, the connection might
725 * get dropped, though.
726 *
727 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
728 * how long the underlying connection is held. So every channel that runs on the
729 * hci_conn object calls this to prevent the connection from disappearing. As
730 * long as you hold a device, you must also guarantee that you have a valid
731 * reference to the device via hci_conn_get() (or the initial reference from
732 * hci_conn_add()).
733 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
734 * break because nobody cares for that. But this means, we cannot use
735 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
736 */
737
738 static inline void hci_conn_get(struct hci_conn *conn)
739 {
740 get_device(&conn->dev);
741 }
742
743 static inline void hci_conn_put(struct hci_conn *conn)
744 {
745 put_device(&conn->dev);
746 }
747
748 static inline void hci_conn_hold(struct hci_conn *conn)
749 {
750 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
751
752 atomic_inc(&conn->refcnt);
753 cancel_delayed_work(&conn->disc_work);
754 }
755
756 static inline void hci_conn_drop(struct hci_conn *conn)
757 {
758 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
759
760 if (atomic_dec_and_test(&conn->refcnt)) {
761 unsigned long timeo;
762
763 switch (conn->type) {
764 case ACL_LINK:
765 case LE_LINK:
766 cancel_delayed_work(&conn->idle_work);
767 if (conn->state == BT_CONNECTED) {
768 timeo = conn->disc_timeout;
769 if (!conn->out)
770 timeo *= 2;
771 } else {
772 timeo = msecs_to_jiffies(10);
773 }
774 break;
775
776 case AMP_LINK:
777 timeo = conn->disc_timeout;
778 break;
779
780 default:
781 timeo = msecs_to_jiffies(10);
782 break;
783 }
784
785 cancel_delayed_work(&conn->disc_work);
786 queue_delayed_work(conn->hdev->workqueue,
787 &conn->disc_work, timeo);
788 }
789 }
790
791 /* ----- HCI Devices ----- */
792 static inline void hci_dev_put(struct hci_dev *d)
793 {
794 BT_DBG("%s orig refcnt %d", d->name,
795 atomic_read(&d->dev.kobj.kref.refcount));
796
797 put_device(&d->dev);
798 }
799
800 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
801 {
802 BT_DBG("%s orig refcnt %d", d->name,
803 atomic_read(&d->dev.kobj.kref.refcount));
804
805 get_device(&d->dev);
806 return d;
807 }
808
809 #define hci_dev_lock(d) mutex_lock(&d->lock)
810 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
811
812 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
813 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
814
815 static inline void *hci_get_drvdata(struct hci_dev *hdev)
816 {
817 return dev_get_drvdata(&hdev->dev);
818 }
819
820 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
821 {
822 dev_set_drvdata(&hdev->dev, data);
823 }
824
825 struct hci_dev *hci_dev_get(int index);
826 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
827
828 struct hci_dev *hci_alloc_dev(void);
829 void hci_free_dev(struct hci_dev *hdev);
830 int hci_register_dev(struct hci_dev *hdev);
831 void hci_unregister_dev(struct hci_dev *hdev);
832 int hci_suspend_dev(struct hci_dev *hdev);
833 int hci_resume_dev(struct hci_dev *hdev);
834 int hci_dev_open(__u16 dev);
835 int hci_dev_close(__u16 dev);
836 int hci_dev_reset(__u16 dev);
837 int hci_dev_reset_stat(__u16 dev);
838 int hci_dev_cmd(unsigned int cmd, void __user *arg);
839 int hci_get_dev_list(void __user *arg);
840 int hci_get_dev_info(void __user *arg);
841 int hci_get_conn_list(void __user *arg);
842 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
843 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
844 int hci_inquiry(void __user *arg);
845
846 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
847 bdaddr_t *bdaddr, u8 type);
848 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
849 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
850
851 struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev,
852 bdaddr_t *bdaddr, u8 type);
853 void hci_white_list_clear(struct hci_dev *hdev);
854 int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
855 int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
856
857 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
858 bdaddr_t *addr, u8 addr_type);
859 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
860 bdaddr_t *addr, u8 addr_type);
861 int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type,
862 u8 auto_connect);
863 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
864 void hci_conn_params_clear_all(struct hci_dev *hdev);
865 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
866 void hci_conn_params_clear_enabled(struct hci_dev *hdev);
867
868 struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev,
869 bdaddr_t *addr, u8 addr_type);
870 void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
871 void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
872 void hci_pend_le_conns_clear(struct hci_dev *hdev);
873
874 void hci_update_background_scan(struct hci_dev *hdev);
875
876 void hci_uuids_clear(struct hci_dev *hdev);
877
878 void hci_link_keys_clear(struct hci_dev *hdev);
879 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
880 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
881 bdaddr_t *bdaddr, u8 *val, u8 type,
882 u8 pin_len, bool *persistent);
883 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand,
884 bool master);
885 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
886 u8 addr_type, u8 type, u8 authenticated,
887 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
888 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
889 u8 addr_type, bool master);
890 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
891 void hci_smp_ltks_clear(struct hci_dev *hdev);
892 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
893
894 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
895 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
896 u8 addr_type);
897 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
898 u8 addr_type, u8 val[16], bdaddr_t *rpa);
899 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
900 void hci_smp_irks_clear(struct hci_dev *hdev);
901
902 void hci_remote_oob_data_clear(struct hci_dev *hdev);
903 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
904 bdaddr_t *bdaddr);
905 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
906 u8 *hash, u8 *randomizer);
907 int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
908 u8 *hash192, u8 *randomizer192,
909 u8 *hash256, u8 *randomizer256);
910 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
911
912 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
913
914 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
915 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
916 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
917
918 void hci_init_sysfs(struct hci_dev *hdev);
919 void hci_conn_init_sysfs(struct hci_conn *conn);
920 void hci_conn_add_sysfs(struct hci_conn *conn);
921 void hci_conn_del_sysfs(struct hci_conn *conn);
922
923 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
924
925 /* ----- LMP capabilities ----- */
926 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
927 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
928 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
929 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
930 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
931 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
932 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
933 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
934 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
935 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
936 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
937 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
938 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
939 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
940 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
941 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
942 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
943 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
944 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
945
946 /* ----- Extended LMP capabilities ----- */
947 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
948 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
949 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
950 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
951 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
952 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
953
954 /* ----- Host capabilities ----- */
955 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
956 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
957 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
958 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
959
960 /* ----- HCI protocols ----- */
961 #define HCI_PROTO_DEFER 0x01
962
963 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
964 __u8 type, __u8 *flags)
965 {
966 switch (type) {
967 case ACL_LINK:
968 return l2cap_connect_ind(hdev, bdaddr);
969
970 case SCO_LINK:
971 case ESCO_LINK:
972 return sco_connect_ind(hdev, bdaddr, flags);
973
974 default:
975 BT_ERR("unknown link type %d", type);
976 return -EINVAL;
977 }
978 }
979
980 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
981 {
982 switch (conn->type) {
983 case ACL_LINK:
984 case LE_LINK:
985 l2cap_connect_cfm(conn, status);
986 break;
987
988 case SCO_LINK:
989 case ESCO_LINK:
990 sco_connect_cfm(conn, status);
991 break;
992
993 default:
994 BT_ERR("unknown link type %d", conn->type);
995 break;
996 }
997
998 if (conn->connect_cfm_cb)
999 conn->connect_cfm_cb(conn, status);
1000 }
1001
1002 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1003 {
1004 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1005 return HCI_ERROR_REMOTE_USER_TERM;
1006
1007 return l2cap_disconn_ind(conn);
1008 }
1009
1010 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
1011 {
1012 switch (conn->type) {
1013 case ACL_LINK:
1014 case LE_LINK:
1015 l2cap_disconn_cfm(conn, reason);
1016 break;
1017
1018 case SCO_LINK:
1019 case ESCO_LINK:
1020 sco_disconn_cfm(conn, reason);
1021 break;
1022
1023 /* L2CAP would be handled for BREDR chan */
1024 case AMP_LINK:
1025 break;
1026
1027 default:
1028 BT_ERR("unknown link type %d", conn->type);
1029 break;
1030 }
1031
1032 if (conn->disconn_cfm_cb)
1033 conn->disconn_cfm_cb(conn, reason);
1034 }
1035
1036 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
1037 {
1038 __u8 encrypt;
1039
1040 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1041 return;
1042
1043 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1044 return;
1045
1046 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1047 l2cap_security_cfm(conn, status, encrypt);
1048
1049 if (conn->security_cfm_cb)
1050 conn->security_cfm_cb(conn, status);
1051 }
1052
1053 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
1054 __u8 encrypt)
1055 {
1056 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1057 return;
1058
1059 l2cap_security_cfm(conn, status, encrypt);
1060
1061 if (conn->security_cfm_cb)
1062 conn->security_cfm_cb(conn, status);
1063 }
1064
1065 /* ----- HCI callbacks ----- */
1066 struct hci_cb {
1067 struct list_head list;
1068
1069 char *name;
1070
1071 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1072 __u8 encrypt);
1073 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1074 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1075 };
1076
1077 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1078 {
1079 struct hci_cb *cb;
1080 __u8 encrypt;
1081
1082 hci_proto_auth_cfm(conn, status);
1083
1084 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1085 return;
1086
1087 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1088
1089 read_lock(&hci_cb_list_lock);
1090 list_for_each_entry(cb, &hci_cb_list, list) {
1091 if (cb->security_cfm)
1092 cb->security_cfm(conn, status, encrypt);
1093 }
1094 read_unlock(&hci_cb_list_lock);
1095 }
1096
1097 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1098 __u8 encrypt)
1099 {
1100 struct hci_cb *cb;
1101
1102 if (conn->sec_level == BT_SECURITY_SDP)
1103 conn->sec_level = BT_SECURITY_LOW;
1104
1105 if (conn->pending_sec_level > conn->sec_level)
1106 conn->sec_level = conn->pending_sec_level;
1107
1108 hci_proto_encrypt_cfm(conn, status, encrypt);
1109
1110 read_lock(&hci_cb_list_lock);
1111 list_for_each_entry(cb, &hci_cb_list, list) {
1112 if (cb->security_cfm)
1113 cb->security_cfm(conn, status, encrypt);
1114 }
1115 read_unlock(&hci_cb_list_lock);
1116 }
1117
1118 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1119 {
1120 struct hci_cb *cb;
1121
1122 read_lock(&hci_cb_list_lock);
1123 list_for_each_entry(cb, &hci_cb_list, list) {
1124 if (cb->key_change_cfm)
1125 cb->key_change_cfm(conn, status);
1126 }
1127 read_unlock(&hci_cb_list_lock);
1128 }
1129
1130 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1131 __u8 role)
1132 {
1133 struct hci_cb *cb;
1134
1135 read_lock(&hci_cb_list_lock);
1136 list_for_each_entry(cb, &hci_cb_list, list) {
1137 if (cb->role_switch_cfm)
1138 cb->role_switch_cfm(conn, status, role);
1139 }
1140 read_unlock(&hci_cb_list_lock);
1141 }
1142
1143 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
1144 {
1145 size_t parsed = 0;
1146
1147 if (data_len < 2)
1148 return false;
1149
1150 while (parsed < data_len - 1) {
1151 u8 field_len = data[0];
1152
1153 if (field_len == 0)
1154 break;
1155
1156 parsed += field_len + 1;
1157
1158 if (parsed > data_len)
1159 break;
1160
1161 if (data[1] == type)
1162 return true;
1163
1164 data += field_len + 1;
1165 }
1166
1167 return false;
1168 }
1169
1170 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1171 {
1172 if (addr_type != ADDR_LE_DEV_RANDOM)
1173 return false;
1174
1175 if ((bdaddr->b[5] & 0xc0) == 0x40)
1176 return true;
1177
1178 return false;
1179 }
1180
1181 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1182 bdaddr_t *bdaddr, u8 addr_type)
1183 {
1184 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1185 return NULL;
1186
1187 return hci_find_irk_by_rpa(hdev, bdaddr);
1188 }
1189
1190 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1191 u16 to_multiplier)
1192 {
1193 u16 max_latency;
1194
1195 if (min > max || min < 6 || max > 3200)
1196 return -EINVAL;
1197
1198 if (to_multiplier < 10 || to_multiplier > 3200)
1199 return -EINVAL;
1200
1201 if (max >= to_multiplier * 8)
1202 return -EINVAL;
1203
1204 max_latency = (to_multiplier * 8 / max) - 1;
1205 if (latency > 499 || latency > max_latency)
1206 return -EINVAL;
1207
1208 return 0;
1209 }
1210
1211 int hci_register_cb(struct hci_cb *hcb);
1212 int hci_unregister_cb(struct hci_cb *hcb);
1213
1214 struct hci_request {
1215 struct hci_dev *hdev;
1216 struct sk_buff_head cmd_q;
1217
1218 /* If something goes wrong when building the HCI request, the error
1219 * value is stored in this field.
1220 */
1221 int err;
1222 };
1223
1224 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1225 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
1226 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
1227 const void *param);
1228 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
1229 const void *param, u8 event);
1230 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
1231
1232 void hci_req_add_le_scan_disable(struct hci_request *req);
1233 void hci_req_add_le_passive_scan(struct hci_request *req);
1234
1235 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1236 const void *param, u32 timeout);
1237 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1238 const void *param, u8 event, u32 timeout);
1239
1240 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1241 const void *param);
1242 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1243 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1244
1245 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1246
1247 /* ----- HCI Sockets ----- */
1248 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1249 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1250 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1251
1252 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1253
1254 /* Management interface */
1255 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1256 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1257 BIT(BDADDR_LE_RANDOM))
1258 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1259 BIT(BDADDR_LE_PUBLIC) | \
1260 BIT(BDADDR_LE_RANDOM))
1261
1262 /* These LE scan and inquiry parameters were chosen according to LE General
1263 * Discovery Procedure specification.
1264 */
1265 #define DISCOV_LE_SCAN_WIN 0x12
1266 #define DISCOV_LE_SCAN_INT 0x12
1267 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1268 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1269 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1270 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1271
1272 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1273 void mgmt_index_added(struct hci_dev *hdev);
1274 void mgmt_index_removed(struct hci_dev *hdev);
1275 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1276 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1277 void mgmt_discoverable_timeout(struct hci_dev *hdev);
1278 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1279 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1280 void mgmt_advertising(struct hci_dev *hdev, u8 advertising);
1281 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1282 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1283 bool persistent);
1284 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1285 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1286 u8 *dev_class);
1287 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1288 u8 link_type, u8 addr_type, u8 reason,
1289 bool mgmt_connected);
1290 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1291 u8 link_type, u8 addr_type, u8 status);
1292 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1293 u8 addr_type, u8 status);
1294 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1295 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1296 u8 status);
1297 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1298 u8 status);
1299 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1300 u8 link_type, u8 addr_type, u32 value,
1301 u8 confirm_hint);
1302 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1303 u8 link_type, u8 addr_type, u8 status);
1304 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1305 u8 link_type, u8 addr_type, u8 status);
1306 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1307 u8 link_type, u8 addr_type);
1308 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1309 u8 link_type, u8 addr_type, u8 status);
1310 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1311 u8 link_type, u8 addr_type, u8 status);
1312 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1313 u8 link_type, u8 addr_type, u32 passkey,
1314 u8 entered);
1315 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1316 u8 addr_type, u8 status);
1317 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1318 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1319 void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1320 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1321 u8 status);
1322 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1323 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
1324 u8 *randomizer192, u8 *hash256,
1325 u8 *randomizer256, u8 status);
1326 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1327 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1328 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1329 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1330 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1331 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1332 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1333 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk);
1334 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1335 bool persistent);
1336 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1337 u8 bdaddr_type, u16 min_interval, u16 max_interval,
1338 u16 latency, u16 timeout);
1339 void mgmt_reenable_advertising(struct hci_dev *hdev);
1340 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1341
1342 /* HCI info for socket */
1343 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1344
1345 struct hci_pinfo {
1346 struct bt_sock bt;
1347 struct hci_dev *hdev;
1348 struct hci_filter filter;
1349 __u32 cmsg_mask;
1350 unsigned short channel;
1351 };
1352
1353 /* HCI security filter */
1354 #define HCI_SFLT_MAX_OGF 5
1355
1356 struct hci_sec_filter {
1357 __u32 type_mask;
1358 __u32 event_mask[2];
1359 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1360 };
1361
1362 /* ----- HCI requests ----- */
1363 #define HCI_REQ_DONE 0
1364 #define HCI_REQ_PEND 1
1365 #define HCI_REQ_CANCELED 2
1366
1367 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1368 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1369
1370 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1371 u16 latency, u16 to_multiplier);
1372 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1373 __u8 ltk[16]);
1374
1375 int hci_update_random_address(struct hci_request *req, bool require_privacy,
1376 u8 *own_addr_type);
1377 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1378 u8 *bdaddr_type);
1379
1380 #define SCO_AIRMODE_MASK 0x0003
1381 #define SCO_AIRMODE_CVSD 0x0000
1382 #define SCO_AIRMODE_TRANSP 0x0003
1383
1384 #endif /* __HCI_CORE_H */
Linux kernel - Deliverables
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