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Bluetooth: mgmt: Managing only BR/EDR HCI controllers
[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 };
72
73 struct hci_conn_hash {
74 struct list_head list;
75 unsigned int acl_num;
76 unsigned int sco_num;
77 unsigned int le_num;
78 };
79
80 struct bdaddr_list {
81 struct list_head list;
82 bdaddr_t bdaddr;
83 };
84
85 struct bt_uuid {
86 struct list_head list;
87 u8 uuid[16];
88 u8 svc_hint;
89 };
90
91 struct smp_ltk {
92 struct list_head list;
93 bdaddr_t bdaddr;
94 u8 bdaddr_type;
95 u8 authenticated;
96 u8 type;
97 u8 enc_size;
98 __le16 ediv;
99 u8 rand[8];
100 u8 val[16];
101 } __packed;
102
103 struct link_key {
104 struct list_head list;
105 bdaddr_t bdaddr;
106 u8 type;
107 u8 val[HCI_LINK_KEY_SIZE];
108 u8 pin_len;
109 };
110
111 struct oob_data {
112 struct list_head list;
113 bdaddr_t bdaddr;
114 u8 hash[16];
115 u8 randomizer[16];
116 };
117
118 struct le_scan_params {
119 u8 type;
120 u16 interval;
121 u16 window;
122 int timeout;
123 };
124
125 #define HCI_MAX_SHORT_NAME_LENGTH 10
126
127 #define NUM_REASSEMBLY 4
128 struct hci_dev {
129 struct list_head list;
130 struct mutex lock;
131
132 char name[8];
133 unsigned long flags;
134 __u16 id;
135 __u8 bus;
136 __u8 dev_type;
137 bdaddr_t bdaddr;
138 __u8 dev_name[HCI_MAX_NAME_LENGTH];
139 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
140 __u8 eir[HCI_MAX_EIR_LENGTH];
141 __u8 dev_class[3];
142 __u8 major_class;
143 __u8 minor_class;
144 __u8 features[8];
145 __u8 host_features[8];
146 __u8 commands[64];
147 __u8 hci_ver;
148 __u16 hci_rev;
149 __u8 lmp_ver;
150 __u16 manufacturer;
151 __u16 lmp_subver;
152 __u16 voice_setting;
153 __u8 io_capability;
154 __s8 inq_tx_power;
155 __u16 devid_source;
156 __u16 devid_vendor;
157 __u16 devid_product;
158 __u16 devid_version;
159
160 __u16 pkt_type;
161 __u16 esco_type;
162 __u16 link_policy;
163 __u16 link_mode;
164
165 __u32 idle_timeout;
166 __u16 sniff_min_interval;
167 __u16 sniff_max_interval;
168
169 __u8 amp_status;
170 __u32 amp_total_bw;
171 __u32 amp_max_bw;
172 __u32 amp_min_latency;
173 __u32 amp_max_pdu;
174 __u8 amp_type;
175 __u16 amp_pal_cap;
176 __u16 amp_assoc_size;
177 __u32 amp_max_flush_to;
178 __u32 amp_be_flush_to;
179
180 __u8 flow_ctl_mode;
181
182 unsigned int auto_accept_delay;
183
184 unsigned long quirks;
185
186 atomic_t cmd_cnt;
187 unsigned int acl_cnt;
188 unsigned int sco_cnt;
189 unsigned int le_cnt;
190
191 unsigned int acl_mtu;
192 unsigned int sco_mtu;
193 unsigned int le_mtu;
194 unsigned int acl_pkts;
195 unsigned int sco_pkts;
196 unsigned int le_pkts;
197
198 __u16 block_len;
199 __u16 block_mtu;
200 __u16 num_blocks;
201 __u16 block_cnt;
202
203 unsigned long acl_last_tx;
204 unsigned long sco_last_tx;
205 unsigned long le_last_tx;
206
207 struct workqueue_struct *workqueue;
208
209 struct work_struct power_on;
210 struct delayed_work power_off;
211
212 __u16 discov_timeout;
213 struct delayed_work discov_off;
214
215 struct delayed_work service_cache;
216
217 struct timer_list cmd_timer;
218
219 struct work_struct rx_work;
220 struct work_struct cmd_work;
221 struct work_struct tx_work;
222
223 struct sk_buff_head rx_q;
224 struct sk_buff_head raw_q;
225 struct sk_buff_head cmd_q;
226
227 struct sk_buff *sent_cmd;
228 struct sk_buff *reassembly[NUM_REASSEMBLY];
229
230 struct mutex req_lock;
231 wait_queue_head_t req_wait_q;
232 __u32 req_status;
233 __u32 req_result;
234
235 __u16 init_last_cmd;
236
237 struct list_head mgmt_pending;
238
239 struct discovery_state discovery;
240 struct hci_conn_hash conn_hash;
241 struct list_head blacklist;
242
243 struct list_head uuids;
244
245 struct list_head link_keys;
246
247 struct list_head long_term_keys;
248
249 struct list_head remote_oob_data;
250
251 struct hci_dev_stats stat;
252
253 struct sk_buff_head driver_init;
254
255 void *core_data;
256
257 atomic_t promisc;
258
259 struct dentry *debugfs;
260
261 struct device dev;
262
263 struct rfkill *rfkill;
264
265 unsigned long dev_flags;
266
267 struct delayed_work le_scan_disable;
268
269 struct work_struct le_scan;
270 struct le_scan_params le_scan_params;
271
272 int (*open)(struct hci_dev *hdev);
273 int (*close)(struct hci_dev *hdev);
274 int (*flush)(struct hci_dev *hdev);
275 int (*send)(struct sk_buff *skb);
276 void (*notify)(struct hci_dev *hdev, unsigned int evt);
277 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
278 };
279
280 struct hci_conn {
281 struct list_head list;
282
283 atomic_t refcnt;
284
285 bdaddr_t dst;
286 __u8 dst_type;
287 __u16 handle;
288 __u16 state;
289 __u8 mode;
290 __u8 type;
291 bool out;
292 __u8 attempt;
293 __u8 dev_class[3];
294 __u8 features[8];
295 __u16 interval;
296 __u16 pkt_type;
297 __u16 link_policy;
298 __u32 link_mode;
299 __u8 key_type;
300 __u8 auth_type;
301 __u8 sec_level;
302 __u8 pending_sec_level;
303 __u8 pin_length;
304 __u8 enc_key_size;
305 __u8 io_capability;
306 __u16 disc_timeout;
307 unsigned long flags;
308
309 __u8 remote_cap;
310 __u8 remote_auth;
311 bool flush_key;
312
313 unsigned int sent;
314
315 struct sk_buff_head data_q;
316 struct list_head chan_list;
317
318 struct delayed_work disc_work;
319 struct timer_list idle_timer;
320 struct timer_list auto_accept_timer;
321
322 struct device dev;
323 atomic_t devref;
324
325 struct hci_dev *hdev;
326 void *l2cap_data;
327 void *sco_data;
328 void *smp_conn;
329 struct amp_mgr *amp_mgr;
330
331 struct hci_conn *link;
332
333 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
334 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
335 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
336 };
337
338 struct hci_chan {
339 struct list_head list;
340
341 struct hci_conn *conn;
342 struct sk_buff_head data_q;
343 unsigned int sent;
344 };
345
346 extern struct list_head hci_dev_list;
347 extern struct list_head hci_cb_list;
348 extern rwlock_t hci_dev_list_lock;
349 extern rwlock_t hci_cb_list_lock;
350
351 /* ----- HCI interface to upper protocols ----- */
352 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
353 extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
354 extern int l2cap_disconn_ind(struct hci_conn *hcon);
355 extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
356 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
357 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb,
358 u16 flags);
359
360 extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
361 extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
362 extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
363 extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
364
365 /* ----- Inquiry cache ----- */
366 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
367 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
368
369 static inline void discovery_init(struct hci_dev *hdev)
370 {
371 hdev->discovery.state = DISCOVERY_STOPPED;
372 INIT_LIST_HEAD(&hdev->discovery.all);
373 INIT_LIST_HEAD(&hdev->discovery.unknown);
374 INIT_LIST_HEAD(&hdev->discovery.resolve);
375 }
376
377 bool hci_discovery_active(struct hci_dev *hdev);
378
379 void hci_discovery_set_state(struct hci_dev *hdev, int state);
380
381 static inline int inquiry_cache_empty(struct hci_dev *hdev)
382 {
383 return list_empty(&hdev->discovery.all);
384 }
385
386 static inline long inquiry_cache_age(struct hci_dev *hdev)
387 {
388 struct discovery_state *c = &hdev->discovery;
389 return jiffies - c->timestamp;
390 }
391
392 static inline long inquiry_entry_age(struct inquiry_entry *e)
393 {
394 return jiffies - e->timestamp;
395 }
396
397 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
398 bdaddr_t *bdaddr);
399 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
400 bdaddr_t *bdaddr);
401 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
402 bdaddr_t *bdaddr,
403 int state);
404 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
405 struct inquiry_entry *ie);
406 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
407 bool name_known, bool *ssp);
408
409 /* ----- HCI Connections ----- */
410 enum {
411 HCI_CONN_AUTH_PEND,
412 HCI_CONN_REAUTH_PEND,
413 HCI_CONN_ENCRYPT_PEND,
414 HCI_CONN_RSWITCH_PEND,
415 HCI_CONN_MODE_CHANGE_PEND,
416 HCI_CONN_SCO_SETUP_PEND,
417 HCI_CONN_LE_SMP_PEND,
418 HCI_CONN_MGMT_CONNECTED,
419 HCI_CONN_SSP_ENABLED,
420 HCI_CONN_POWER_SAVE,
421 HCI_CONN_REMOTE_OOB,
422 };
423
424 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
425 {
426 struct hci_dev *hdev = conn->hdev;
427 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
428 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
429 }
430
431 static inline void hci_conn_hash_init(struct hci_dev *hdev)
432 {
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 INIT_LIST_HEAD(&h->list);
435 h->acl_num = 0;
436 h->sco_num = 0;
437 h->le_num = 0;
438 }
439
440 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
441 {
442 struct hci_conn_hash *h = &hdev->conn_hash;
443 list_add_rcu(&c->list, &h->list);
444 switch (c->type) {
445 case ACL_LINK:
446 h->acl_num++;
447 break;
448 case LE_LINK:
449 h->le_num++;
450 break;
451 case SCO_LINK:
452 case ESCO_LINK:
453 h->sco_num++;
454 break;
455 }
456 }
457
458 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
459 {
460 struct hci_conn_hash *h = &hdev->conn_hash;
461
462 list_del_rcu(&c->list);
463 synchronize_rcu();
464
465 switch (c->type) {
466 case ACL_LINK:
467 h->acl_num--;
468 break;
469 case LE_LINK:
470 h->le_num--;
471 break;
472 case SCO_LINK:
473 case ESCO_LINK:
474 h->sco_num--;
475 break;
476 }
477 }
478
479 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
480 {
481 struct hci_conn_hash *h = &hdev->conn_hash;
482 switch (type) {
483 case ACL_LINK:
484 return h->acl_num;
485 case LE_LINK:
486 return h->le_num;
487 case SCO_LINK:
488 case ESCO_LINK:
489 return h->sco_num;
490 default:
491 return 0;
492 }
493 }
494
495 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
496 __u16 handle)
497 {
498 struct hci_conn_hash *h = &hdev->conn_hash;
499 struct hci_conn *c;
500
501 rcu_read_lock();
502
503 list_for_each_entry_rcu(c, &h->list, list) {
504 if (c->handle == handle) {
505 rcu_read_unlock();
506 return c;
507 }
508 }
509 rcu_read_unlock();
510
511 return NULL;
512 }
513
514 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
515 __u8 type, bdaddr_t *ba)
516 {
517 struct hci_conn_hash *h = &hdev->conn_hash;
518 struct hci_conn *c;
519
520 rcu_read_lock();
521
522 list_for_each_entry_rcu(c, &h->list, list) {
523 if (c->type == type && !bacmp(&c->dst, ba)) {
524 rcu_read_unlock();
525 return c;
526 }
527 }
528
529 rcu_read_unlock();
530
531 return NULL;
532 }
533
534 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
535 __u8 type, __u16 state)
536 {
537 struct hci_conn_hash *h = &hdev->conn_hash;
538 struct hci_conn *c;
539
540 rcu_read_lock();
541
542 list_for_each_entry_rcu(c, &h->list, list) {
543 if (c->type == type && c->state == state) {
544 rcu_read_unlock();
545 return c;
546 }
547 }
548
549 rcu_read_unlock();
550
551 return NULL;
552 }
553
554 void hci_acl_connect(struct hci_conn *conn);
555 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
556 void hci_add_sco(struct hci_conn *conn, __u16 handle);
557 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
558 void hci_sco_setup(struct hci_conn *conn, __u8 status);
559
560 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
561 int hci_conn_del(struct hci_conn *conn);
562 void hci_conn_hash_flush(struct hci_dev *hdev);
563 void hci_conn_check_pending(struct hci_dev *hdev);
564
565 struct hci_chan *hci_chan_create(struct hci_conn *conn);
566 int hci_chan_del(struct hci_chan *chan);
567 void hci_chan_list_flush(struct hci_conn *conn);
568
569 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
570 __u8 dst_type, __u8 sec_level, __u8 auth_type);
571 int hci_conn_check_link_mode(struct hci_conn *conn);
572 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
573 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
574 int hci_conn_change_link_key(struct hci_conn *conn);
575 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
576
577 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
578
579 void hci_conn_hold_device(struct hci_conn *conn);
580 void hci_conn_put_device(struct hci_conn *conn);
581
582 static inline void hci_conn_hold(struct hci_conn *conn)
583 {
584 BT_DBG("hcon %p refcnt %d -> %d", conn, atomic_read(&conn->refcnt),
585 atomic_read(&conn->refcnt) + 1);
586
587 atomic_inc(&conn->refcnt);
588 cancel_delayed_work(&conn->disc_work);
589 }
590
591 static inline void hci_conn_put(struct hci_conn *conn)
592 {
593 BT_DBG("hcon %p refcnt %d -> %d", conn, atomic_read(&conn->refcnt),
594 atomic_read(&conn->refcnt) - 1);
595
596 if (atomic_dec_and_test(&conn->refcnt)) {
597 unsigned long timeo;
598 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
599 del_timer(&conn->idle_timer);
600 if (conn->state == BT_CONNECTED) {
601 timeo = conn->disc_timeout;
602 if (!conn->out)
603 timeo *= 2;
604 } else {
605 timeo = msecs_to_jiffies(10);
606 }
607 } else {
608 timeo = msecs_to_jiffies(10);
609 }
610 cancel_delayed_work(&conn->disc_work);
611 queue_delayed_work(conn->hdev->workqueue,
612 &conn->disc_work, timeo);
613 }
614 }
615
616 /* ----- HCI Devices ----- */
617 static inline void hci_dev_put(struct hci_dev *d)
618 {
619 put_device(&d->dev);
620 }
621
622 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
623 {
624 get_device(&d->dev);
625 return d;
626 }
627
628 #define hci_dev_lock(d) mutex_lock(&d->lock)
629 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
630
631 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
632 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
633
634 static inline void *hci_get_drvdata(struct hci_dev *hdev)
635 {
636 return dev_get_drvdata(&hdev->dev);
637 }
638
639 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
640 {
641 dev_set_drvdata(&hdev->dev, data);
642 }
643
644 /* hci_dev_list shall be locked */
645 static inline uint8_t __hci_num_ctrl(void)
646 {
647 uint8_t count = 0;
648 struct list_head *p;
649
650 list_for_each(p, &hci_dev_list) {
651 count++;
652 }
653
654 return count;
655 }
656
657 struct hci_dev *hci_dev_get(int index);
658 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
659
660 struct hci_dev *hci_alloc_dev(void);
661 void hci_free_dev(struct hci_dev *hdev);
662 int hci_register_dev(struct hci_dev *hdev);
663 void hci_unregister_dev(struct hci_dev *hdev);
664 int hci_suspend_dev(struct hci_dev *hdev);
665 int hci_resume_dev(struct hci_dev *hdev);
666 int hci_dev_open(__u16 dev);
667 int hci_dev_close(__u16 dev);
668 int hci_dev_reset(__u16 dev);
669 int hci_dev_reset_stat(__u16 dev);
670 int hci_dev_cmd(unsigned int cmd, void __user *arg);
671 int hci_get_dev_list(void __user *arg);
672 int hci_get_dev_info(void __user *arg);
673 int hci_get_conn_list(void __user *arg);
674 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
675 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
676 int hci_inquiry(void __user *arg);
677
678 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
679 bdaddr_t *bdaddr);
680 int hci_blacklist_clear(struct hci_dev *hdev);
681 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
682 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
683
684 int hci_uuids_clear(struct hci_dev *hdev);
685
686 int hci_link_keys_clear(struct hci_dev *hdev);
687 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
688 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
689 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
690 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
691 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
692 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
693 __le16 ediv, u8 rand[8]);
694 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
695 u8 addr_type);
696 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
697 int hci_smp_ltks_clear(struct hci_dev *hdev);
698 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
699
700 int hci_remote_oob_data_clear(struct hci_dev *hdev);
701 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
702 bdaddr_t *bdaddr);
703 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
704 u8 *randomizer);
705 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
706
707 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
708
709 int hci_recv_frame(struct sk_buff *skb);
710 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
711 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
712
713 void hci_init_sysfs(struct hci_dev *hdev);
714 int hci_add_sysfs(struct hci_dev *hdev);
715 void hci_del_sysfs(struct hci_dev *hdev);
716 void hci_conn_init_sysfs(struct hci_conn *conn);
717 void hci_conn_add_sysfs(struct hci_conn *conn);
718 void hci_conn_del_sysfs(struct hci_conn *conn);
719
720 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
721
722 /* ----- LMP capabilities ----- */
723 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
724 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
725 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
726 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
727 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
728 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
729 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
730 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
731 #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
732
733 /* ----- Extended LMP capabilities ----- */
734 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
735
736 /* ----- HCI protocols ----- */
737 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
738 __u8 type)
739 {
740 switch (type) {
741 case ACL_LINK:
742 return l2cap_connect_ind(hdev, bdaddr);
743
744 case SCO_LINK:
745 case ESCO_LINK:
746 return sco_connect_ind(hdev, bdaddr);
747
748 default:
749 BT_ERR("unknown link type %d", type);
750 return -EINVAL;
751 }
752 }
753
754 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
755 {
756 switch (conn->type) {
757 case ACL_LINK:
758 case LE_LINK:
759 l2cap_connect_cfm(conn, status);
760 break;
761
762 case SCO_LINK:
763 case ESCO_LINK:
764 sco_connect_cfm(conn, status);
765 break;
766
767 default:
768 BT_ERR("unknown link type %d", conn->type);
769 break;
770 }
771
772 if (conn->connect_cfm_cb)
773 conn->connect_cfm_cb(conn, status);
774 }
775
776 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
777 {
778 if (conn->type != ACL_LINK && conn->type != LE_LINK)
779 return HCI_ERROR_REMOTE_USER_TERM;
780
781 return l2cap_disconn_ind(conn);
782 }
783
784 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
785 {
786 switch (conn->type) {
787 case ACL_LINK:
788 case LE_LINK:
789 l2cap_disconn_cfm(conn, reason);
790 break;
791
792 case SCO_LINK:
793 case ESCO_LINK:
794 sco_disconn_cfm(conn, reason);
795 break;
796
797 default:
798 BT_ERR("unknown link type %d", conn->type);
799 break;
800 }
801
802 if (conn->disconn_cfm_cb)
803 conn->disconn_cfm_cb(conn, reason);
804 }
805
806 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
807 {
808 __u8 encrypt;
809
810 if (conn->type != ACL_LINK && conn->type != LE_LINK)
811 return;
812
813 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
814 return;
815
816 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
817 l2cap_security_cfm(conn, status, encrypt);
818
819 if (conn->security_cfm_cb)
820 conn->security_cfm_cb(conn, status);
821 }
822
823 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
824 __u8 encrypt)
825 {
826 if (conn->type != ACL_LINK && conn->type != LE_LINK)
827 return;
828
829 l2cap_security_cfm(conn, status, encrypt);
830
831 if (conn->security_cfm_cb)
832 conn->security_cfm_cb(conn, status);
833 }
834
835 /* ----- HCI callbacks ----- */
836 struct hci_cb {
837 struct list_head list;
838
839 char *name;
840
841 void (*security_cfm) (struct hci_conn *conn, __u8 status,
842 __u8 encrypt);
843 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
844 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
845 };
846
847 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
848 {
849 struct list_head *p;
850 __u8 encrypt;
851
852 hci_proto_auth_cfm(conn, status);
853
854 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
855 return;
856
857 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
858
859 read_lock(&hci_cb_list_lock);
860 list_for_each(p, &hci_cb_list) {
861 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
862 if (cb->security_cfm)
863 cb->security_cfm(conn, status, encrypt);
864 }
865 read_unlock(&hci_cb_list_lock);
866 }
867
868 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
869 __u8 encrypt)
870 {
871 struct list_head *p;
872
873 if (conn->sec_level == BT_SECURITY_SDP)
874 conn->sec_level = BT_SECURITY_LOW;
875
876 if (conn->pending_sec_level > conn->sec_level)
877 conn->sec_level = conn->pending_sec_level;
878
879 hci_proto_encrypt_cfm(conn, status, encrypt);
880
881 read_lock(&hci_cb_list_lock);
882 list_for_each(p, &hci_cb_list) {
883 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
884 if (cb->security_cfm)
885 cb->security_cfm(conn, status, encrypt);
886 }
887 read_unlock(&hci_cb_list_lock);
888 }
889
890 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
891 {
892 struct list_head *p;
893
894 read_lock(&hci_cb_list_lock);
895 list_for_each(p, &hci_cb_list) {
896 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
897 if (cb->key_change_cfm)
898 cb->key_change_cfm(conn, status);
899 }
900 read_unlock(&hci_cb_list_lock);
901 }
902
903 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
904 __u8 role)
905 {
906 struct list_head *p;
907
908 read_lock(&hci_cb_list_lock);
909 list_for_each(p, &hci_cb_list) {
910 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
911 if (cb->role_switch_cfm)
912 cb->role_switch_cfm(conn, status, role);
913 }
914 read_unlock(&hci_cb_list_lock);
915 }
916
917 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
918 {
919 size_t parsed = 0;
920
921 if (data_len < 2)
922 return false;
923
924 while (parsed < data_len - 1) {
925 u8 field_len = data[0];
926
927 if (field_len == 0)
928 break;
929
930 parsed += field_len + 1;
931
932 if (parsed > data_len)
933 break;
934
935 if (data[1] == type)
936 return true;
937
938 data += field_len + 1;
939 }
940
941 return false;
942 }
943
944 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
945 {
946 size_t parsed = 0;
947
948 while (parsed < eir_len) {
949 u8 field_len = eir[0];
950
951 if (field_len == 0)
952 return parsed;
953
954 parsed += field_len + 1;
955 eir += field_len + 1;
956 }
957
958 return eir_len;
959 }
960
961 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
962 u8 data_len)
963 {
964 eir[eir_len++] = sizeof(type) + data_len;
965 eir[eir_len++] = type;
966 memcpy(&eir[eir_len], data, data_len);
967 eir_len += data_len;
968
969 return eir_len;
970 }
971
972 int hci_register_cb(struct hci_cb *hcb);
973 int hci_unregister_cb(struct hci_cb *hcb);
974
975 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
976 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
977 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
978
979 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
980
981 /* ----- HCI Sockets ----- */
982 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
983 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
984 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
985
986 void hci_sock_dev_event(struct hci_dev *hdev, int event);
987
988 /* Management interface */
989 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
990 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
991 BIT(BDADDR_LE_RANDOM))
992 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
993 BIT(BDADDR_LE_PUBLIC) | \
994 BIT(BDADDR_LE_RANDOM))
995
996 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
997 int mgmt_index_added(struct hci_dev *hdev);
998 int mgmt_index_removed(struct hci_dev *hdev);
999 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1000 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1001 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1002 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1003 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1004 bool persistent);
1005 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1006 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1007 u8 *dev_class);
1008 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1009 u8 link_type, u8 addr_type);
1010 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1011 u8 link_type, u8 addr_type, u8 status);
1012 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1013 u8 addr_type, u8 status);
1014 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1015 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1016 u8 status);
1017 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1018 u8 status);
1019 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1020 u8 link_type, u8 addr_type, __le32 value,
1021 u8 confirm_hint);
1022 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1023 u8 link_type, u8 addr_type, u8 status);
1024 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1025 u8 link_type, u8 addr_type, u8 status);
1026 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1027 u8 link_type, u8 addr_type);
1028 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1029 u8 link_type, u8 addr_type, u8 status);
1030 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1031 u8 link_type, u8 addr_type, u8 status);
1032 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1033 u8 addr_type, u8 status);
1034 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1035 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1036 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1037 u8 status);
1038 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1039 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1040 u8 *randomizer, u8 status);
1041 int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1042 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1043 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1044 u8 ssp, u8 *eir, u16 eir_len);
1045 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1046 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1047 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1048 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1049 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1050 int mgmt_interleaved_discovery(struct hci_dev *hdev);
1051 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1052 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1053 bool mgmt_valid_hdev(struct hci_dev *hdev);
1054 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1055
1056 /* HCI info for socket */
1057 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1058
1059 struct hci_pinfo {
1060 struct bt_sock bt;
1061 struct hci_dev *hdev;
1062 struct hci_filter filter;
1063 __u32 cmsg_mask;
1064 unsigned short channel;
1065 };
1066
1067 /* HCI security filter */
1068 #define HCI_SFLT_MAX_OGF 5
1069
1070 struct hci_sec_filter {
1071 __u32 type_mask;
1072 __u32 event_mask[2];
1073 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1074 };
1075
1076 /* ----- HCI requests ----- */
1077 #define HCI_REQ_DONE 0
1078 #define HCI_REQ_PEND 1
1079 #define HCI_REQ_CANCELED 2
1080
1081 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1082 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1083
1084 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1085
1086 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1087 u16 latency, u16 to_multiplier);
1088 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1089 __u8 ltk[16]);
1090 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1091 int hci_cancel_inquiry(struct hci_dev *hdev);
1092 int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1093 int timeout);
1094 int hci_cancel_le_scan(struct hci_dev *hdev);
1095
1096 u8 bdaddr_to_le(u8 bdaddr_type);
1097
1098 #endif /* __HCI_CORE_H */
Linux kernel - Deliverables
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