projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Bluetooth: Introduce to_hci_conn
[GitHub/mt8127/android_kernel_alcatel_ttab.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 <linux/interrupt.h>
29 #include <net/bluetooth/hci.h>
30
31 /* HCI priority */
32 #define HCI_PRIO_MAX 7
33
34 /* HCI Core structures */
35 struct inquiry_data {
36 bdaddr_t bdaddr;
37 __u8 pscan_rep_mode;
38 __u8 pscan_period_mode;
39 __u8 pscan_mode;
40 __u8 dev_class[3];
41 __le16 clock_offset;
42 __s8 rssi;
43 __u8 ssp_mode;
44 };
45
46 struct inquiry_entry {
47 struct list_head all; /* inq_cache.all */
48 struct list_head list; /* unknown or resolve */
49 enum {
50 NAME_NOT_KNOWN,
51 NAME_NEEDED,
52 NAME_PENDING,
53 NAME_KNOWN,
54 } name_state;
55 __u32 timestamp;
56 struct inquiry_data data;
57 };
58
59 struct discovery_state {
60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
63 DISCOVERY_INQUIRY,
64 DISCOVERY_LE_SCAN,
65 DISCOVERY_RESOLVING,
66 DISCOVERY_STOPPING,
67 } state;
68 struct list_head all; /* All devices found during inquiry */
69 struct list_head unknown; /* Name state not known */
70 struct list_head resolve; /* Name needs to be resolved */
71 __u32 timestamp;
72 };
73
74 struct hci_conn_hash {
75 struct list_head list;
76 unsigned int acl_num;
77 unsigned int sco_num;
78 unsigned int le_num;
79 };
80
81 struct bdaddr_list {
82 struct list_head list;
83 bdaddr_t bdaddr;
84 };
85
86 struct bt_uuid {
87 struct list_head list;
88 u8 uuid[16];
89 u8 svc_hint;
90 };
91
92 struct smp_ltk {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 bdaddr_type;
96 u8 authenticated;
97 u8 type;
98 u8 enc_size;
99 __le16 ediv;
100 u8 rand[8];
101 u8 val[16];
102 } __packed;
103
104 struct link_key {
105 struct list_head list;
106 bdaddr_t bdaddr;
107 u8 type;
108 u8 val[16];
109 u8 pin_len;
110 };
111
112 struct oob_data {
113 struct list_head list;
114 bdaddr_t bdaddr;
115 u8 hash[16];
116 u8 randomizer[16];
117 };
118
119 struct adv_entry {
120 struct list_head list;
121 bdaddr_t bdaddr;
122 u8 bdaddr_type;
123 };
124
125 struct le_scan_params {
126 u8 type;
127 u16 interval;
128 u16 window;
129 int timeout;
130 };
131
132 #define NUM_REASSEMBLY 4
133 struct hci_dev {
134 struct list_head list;
135 struct mutex lock;
136
137 char name[8];
138 unsigned long flags;
139 __u16 id;
140 __u8 bus;
141 __u8 dev_type;
142 bdaddr_t bdaddr;
143 __u8 dev_name[HCI_MAX_NAME_LENGTH];
144 __u8 eir[HCI_MAX_EIR_LENGTH];
145 __u8 dev_class[3];
146 __u8 major_class;
147 __u8 minor_class;
148 __u8 features[8];
149 __u8 host_features[8];
150 __u8 commands[64];
151 __u8 hci_ver;
152 __u16 hci_rev;
153 __u8 lmp_ver;
154 __u16 manufacturer;
155 __le16 lmp_subver;
156 __u16 voice_setting;
157 __u8 io_capability;
158
159 __u16 pkt_type;
160 __u16 esco_type;
161 __u16 link_policy;
162 __u16 link_mode;
163
164 __u32 idle_timeout;
165 __u16 sniff_min_interval;
166 __u16 sniff_max_interval;
167
168 __u8 amp_status;
169 __u32 amp_total_bw;
170 __u32 amp_max_bw;
171 __u32 amp_min_latency;
172 __u32 amp_max_pdu;
173 __u8 amp_type;
174 __u16 amp_pal_cap;
175 __u16 amp_assoc_size;
176 __u32 amp_max_flush_to;
177 __u32 amp_be_flush_to;
178
179 __u8 flow_ctl_mode;
180
181 unsigned int auto_accept_delay;
182
183 unsigned long quirks;
184
185 atomic_t cmd_cnt;
186 unsigned int acl_cnt;
187 unsigned int sco_cnt;
188 unsigned int le_cnt;
189
190 unsigned int acl_mtu;
191 unsigned int sco_mtu;
192 unsigned int le_mtu;
193 unsigned int acl_pkts;
194 unsigned int sco_pkts;
195 unsigned int le_pkts;
196
197 __u16 block_len;
198 __u16 block_mtu;
199 __u16 num_blocks;
200 __u16 block_cnt;
201
202 unsigned long acl_last_tx;
203 unsigned long sco_last_tx;
204 unsigned long le_last_tx;
205
206 struct workqueue_struct *workqueue;
207
208 struct work_struct power_on;
209 struct delayed_work power_off;
210
211 __u16 discov_timeout;
212 struct delayed_work discov_off;
213
214 struct delayed_work service_cache;
215
216 struct timer_list cmd_timer;
217
218 struct work_struct rx_work;
219 struct work_struct cmd_work;
220 struct work_struct tx_work;
221
222 struct sk_buff_head rx_q;
223 struct sk_buff_head raw_q;
224 struct sk_buff_head cmd_q;
225
226 struct sk_buff *sent_cmd;
227 struct sk_buff *reassembly[NUM_REASSEMBLY];
228
229 struct mutex req_lock;
230 wait_queue_head_t req_wait_q;
231 __u32 req_status;
232 __u32 req_result;
233
234 __u16 init_last_cmd;
235
236 struct list_head mgmt_pending;
237
238 struct discovery_state discovery;
239 struct hci_conn_hash conn_hash;
240 struct list_head blacklist;
241
242 struct list_head uuids;
243
244 struct list_head link_keys;
245
246 struct list_head long_term_keys;
247
248 struct list_head remote_oob_data;
249
250 struct list_head adv_entries;
251 struct delayed_work adv_work;
252
253 struct hci_dev_stats stat;
254
255 struct sk_buff_head driver_init;
256
257 void *core_data;
258
259 atomic_t promisc;
260
261 struct dentry *debugfs;
262
263 struct device *parent;
264 struct device dev;
265
266 struct rfkill *rfkill;
267
268 unsigned long dev_flags;
269
270 struct delayed_work le_scan_disable;
271
272 struct work_struct le_scan;
273 struct le_scan_params le_scan_params;
274
275 int (*open)(struct hci_dev *hdev);
276 int (*close)(struct hci_dev *hdev);
277 int (*flush)(struct hci_dev *hdev);
278 int (*send)(struct sk_buff *skb);
279 void (*notify)(struct hci_dev *hdev, unsigned int evt);
280 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
281 };
282
283 struct hci_conn {
284 struct list_head list;
285
286 atomic_t refcnt;
287
288 bdaddr_t dst;
289 __u8 dst_type;
290 __u16 handle;
291 __u16 state;
292 __u8 mode;
293 __u8 type;
294 bool out;
295 __u8 attempt;
296 __u8 dev_class[3];
297 __u8 features[8];
298 __u16 interval;
299 __u16 pkt_type;
300 __u16 link_policy;
301 __u32 link_mode;
302 __u8 key_type;
303 __u8 auth_type;
304 __u8 sec_level;
305 __u8 pending_sec_level;
306 __u8 pin_length;
307 __u8 enc_key_size;
308 __u8 io_capability;
309 __u16 disc_timeout;
310 unsigned long flags;
311
312 __u8 remote_cap;
313 __u8 remote_auth;
314
315 unsigned int sent;
316
317 struct sk_buff_head data_q;
318 struct list_head chan_list;
319
320 struct delayed_work disc_work;
321 struct timer_list idle_timer;
322 struct timer_list auto_accept_timer;
323
324 struct device dev;
325 atomic_t devref;
326
327 struct hci_dev *hdev;
328 void *l2cap_data;
329 void *sco_data;
330 void *smp_conn;
331
332 struct hci_conn *link;
333
334 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
335 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
336 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
337 };
338
339 struct hci_chan {
340 struct list_head list;
341
342 struct hci_conn *conn;
343 struct sk_buff_head data_q;
344 unsigned int sent;
345 };
346
347 extern struct list_head hci_dev_list;
348 extern struct list_head hci_cb_list;
349 extern rwlock_t hci_dev_list_lock;
350 extern rwlock_t hci_cb_list_lock;
351
352 /* ----- HCI interface to upper protocols ----- */
353 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
354 extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
355 extern int l2cap_disconn_ind(struct hci_conn *hcon);
356 extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
357 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
358 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, 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);
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->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 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 atomic_inc(&conn->refcnt);
585 cancel_delayed_work(&conn->disc_work);
586 }
587
588 static inline void hci_conn_put(struct hci_conn *conn)
589 {
590 if (atomic_dec_and_test(&conn->refcnt)) {
591 unsigned long timeo;
592 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
593 del_timer(&conn->idle_timer);
594 if (conn->state == BT_CONNECTED) {
595 timeo = msecs_to_jiffies(conn->disc_timeout);
596 if (!conn->out)
597 timeo *= 2;
598 } else {
599 timeo = msecs_to_jiffies(10);
600 }
601 } else {
602 timeo = msecs_to_jiffies(10);
603 }
604 cancel_delayed_work(&conn->disc_work);
605 queue_delayed_work(conn->hdev->workqueue,
606 &conn->disc_work, timeo);
607 }
608 }
609
610 /* ----- HCI Devices ----- */
611 static inline void hci_dev_put(struct hci_dev *d)
612 {
613 put_device(&d->dev);
614 }
615
616 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
617 {
618 get_device(&d->dev);
619 return d;
620 }
621
622 #define hci_dev_lock(d) mutex_lock(&d->lock)
623 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
624
625 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
626 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
627
628 static inline void *hci_get_drvdata(struct hci_dev *hdev)
629 {
630 return dev_get_drvdata(&hdev->dev);
631 }
632
633 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
634 {
635 dev_set_drvdata(&hdev->dev, data);
636 }
637
638 struct hci_dev *hci_dev_get(int index);
639 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
640
641 struct hci_dev *hci_alloc_dev(void);
642 void hci_free_dev(struct hci_dev *hdev);
643 int hci_register_dev(struct hci_dev *hdev);
644 void hci_unregister_dev(struct hci_dev *hdev);
645 int hci_suspend_dev(struct hci_dev *hdev);
646 int hci_resume_dev(struct hci_dev *hdev);
647 int hci_dev_open(__u16 dev);
648 int hci_dev_close(__u16 dev);
649 int hci_dev_reset(__u16 dev);
650 int hci_dev_reset_stat(__u16 dev);
651 int hci_dev_cmd(unsigned int cmd, void __user *arg);
652 int hci_get_dev_list(void __user *arg);
653 int hci_get_dev_info(void __user *arg);
654 int hci_get_conn_list(void __user *arg);
655 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
656 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
657 int hci_inquiry(void __user *arg);
658
659 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
660 int hci_blacklist_clear(struct hci_dev *hdev);
661 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
662 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
663
664 int hci_uuids_clear(struct hci_dev *hdev);
665
666 int hci_link_keys_clear(struct hci_dev *hdev);
667 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
668 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
669 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
670 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
671 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
672 int new_key, u8 authenticated, u8 tk[16],
673 u8 enc_size, u16 ediv, u8 rand[8]);
674 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
675 u8 addr_type);
676 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
677 int hci_smp_ltks_clear(struct hci_dev *hdev);
678 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
679
680 int hci_remote_oob_data_clear(struct hci_dev *hdev);
681 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
682 bdaddr_t *bdaddr);
683 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
684 u8 *randomizer);
685 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
686
687 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
688 int hci_adv_entries_clear(struct hci_dev *hdev);
689 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
690 int hci_add_adv_entry(struct hci_dev *hdev,
691 struct hci_ev_le_advertising_info *ev);
692
693 void hci_del_off_timer(struct hci_dev *hdev);
694
695 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
696
697 int hci_recv_frame(struct sk_buff *skb);
698 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
699 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
700
701 void hci_init_sysfs(struct hci_dev *hdev);
702 int hci_add_sysfs(struct hci_dev *hdev);
703 void hci_del_sysfs(struct hci_dev *hdev);
704 void hci_conn_init_sysfs(struct hci_conn *conn);
705 void hci_conn_add_sysfs(struct hci_conn *conn);
706 void hci_conn_del_sysfs(struct hci_conn *conn);
707
708 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
709
710 /* ----- LMP capabilities ----- */
711 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
712 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
713 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
714 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
715 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
716 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
717 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
718 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
719
720 /* ----- Extended LMP capabilities ----- */
721 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
722
723 /* ----- HCI protocols ----- */
724 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
725 __u8 type)
726 {
727 switch (type) {
728 case ACL_LINK:
729 return l2cap_connect_ind(hdev, bdaddr);
730
731 case SCO_LINK:
732 case ESCO_LINK:
733 return sco_connect_ind(hdev, bdaddr);
734
735 default:
736 BT_ERR("unknown link type %d", type);
737 return -EINVAL;
738 }
739 }
740
741 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
742 {
743 switch (conn->type) {
744 case ACL_LINK:
745 case LE_LINK:
746 l2cap_connect_cfm(conn, status);
747 break;
748
749 case SCO_LINK:
750 case ESCO_LINK:
751 sco_connect_cfm(conn, status);
752 break;
753
754 default:
755 BT_ERR("unknown link type %d", conn->type);
756 break;
757 }
758
759 if (conn->connect_cfm_cb)
760 conn->connect_cfm_cb(conn, status);
761 }
762
763 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
764 {
765 if (conn->type != ACL_LINK && conn->type != LE_LINK)
766 return HCI_ERROR_REMOTE_USER_TERM;
767
768 return l2cap_disconn_ind(conn);
769 }
770
771 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
772 {
773 switch (conn->type) {
774 case ACL_LINK:
775 case LE_LINK:
776 l2cap_disconn_cfm(conn, reason);
777 break;
778
779 case SCO_LINK:
780 case ESCO_LINK:
781 sco_disconn_cfm(conn, reason);
782 break;
783
784 default:
785 BT_ERR("unknown link type %d", conn->type);
786 break;
787 }
788
789 if (conn->disconn_cfm_cb)
790 conn->disconn_cfm_cb(conn, reason);
791 }
792
793 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
794 {
795 __u8 encrypt;
796
797 if (conn->type != ACL_LINK && conn->type != LE_LINK)
798 return;
799
800 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
801 return;
802
803 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
804 l2cap_security_cfm(conn, status, encrypt);
805
806 if (conn->security_cfm_cb)
807 conn->security_cfm_cb(conn, status);
808 }
809
810 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
811 __u8 encrypt)
812 {
813 if (conn->type != ACL_LINK && conn->type != LE_LINK)
814 return;
815
816 l2cap_security_cfm(conn, status, encrypt);
817
818 if (conn->security_cfm_cb)
819 conn->security_cfm_cb(conn, status);
820 }
821
822 /* ----- HCI callbacks ----- */
823 struct hci_cb {
824 struct list_head list;
825
826 char *name;
827
828 void (*security_cfm) (struct hci_conn *conn, __u8 status,
829 __u8 encrypt);
830 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
831 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
832 };
833
834 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
835 {
836 struct list_head *p;
837 __u8 encrypt;
838
839 hci_proto_auth_cfm(conn, status);
840
841 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
842 return;
843
844 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
845
846 read_lock(&hci_cb_list_lock);
847 list_for_each(p, &hci_cb_list) {
848 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
849 if (cb->security_cfm)
850 cb->security_cfm(conn, status, encrypt);
851 }
852 read_unlock(&hci_cb_list_lock);
853 }
854
855 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
856 __u8 encrypt)
857 {
858 struct list_head *p;
859
860 if (conn->sec_level == BT_SECURITY_SDP)
861 conn->sec_level = BT_SECURITY_LOW;
862
863 if (conn->pending_sec_level > conn->sec_level)
864 conn->sec_level = conn->pending_sec_level;
865
866 hci_proto_encrypt_cfm(conn, status, encrypt);
867
868 read_lock(&hci_cb_list_lock);
869 list_for_each(p, &hci_cb_list) {
870 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
871 if (cb->security_cfm)
872 cb->security_cfm(conn, status, encrypt);
873 }
874 read_unlock(&hci_cb_list_lock);
875 }
876
877 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
878 {
879 struct list_head *p;
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->key_change_cfm)
885 cb->key_change_cfm(conn, status);
886 }
887 read_unlock(&hci_cb_list_lock);
888 }
889
890 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
891 __u8 role)
892 {
893 struct list_head *p;
894
895 read_lock(&hci_cb_list_lock);
896 list_for_each(p, &hci_cb_list) {
897 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
898 if (cb->role_switch_cfm)
899 cb->role_switch_cfm(conn, status, role);
900 }
901 read_unlock(&hci_cb_list_lock);
902 }
903
904 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
905 {
906 u8 field_len;
907 size_t parsed;
908
909 for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
910 field_len = data[0];
911
912 if (field_len == 0)
913 break;
914
915 parsed += field_len + 1;
916
917 if (parsed > data_len)
918 break;
919
920 if (data[1] == type)
921 return true;
922
923 data += field_len + 1;
924 }
925
926 return false;
927 }
928
929 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
930 u8 data_len)
931 {
932 eir[eir_len++] = sizeof(type) + data_len;
933 eir[eir_len++] = type;
934 memcpy(&eir[eir_len], data, data_len);
935 eir_len += data_len;
936
937 return eir_len;
938 }
939
940 int hci_register_cb(struct hci_cb *hcb);
941 int hci_unregister_cb(struct hci_cb *hcb);
942
943 int hci_register_notifier(struct notifier_block *nb);
944 int hci_unregister_notifier(struct notifier_block *nb);
945
946 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
947 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
948 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
949
950 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
951
952 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
953
954 /* ----- HCI Sockets ----- */
955 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
956 struct sock *skip_sk);
957
958 /* Management interface */
959 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
960 int mgmt_index_added(struct hci_dev *hdev);
961 int mgmt_index_removed(struct hci_dev *hdev);
962 int mgmt_powered(struct hci_dev *hdev, u8 powered);
963 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
964 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
965 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
966 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
967 u8 persistent);
968 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
969 u8 addr_type, u8 *name, u8 name_len,
970 u8 *dev_class);
971 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
972 u8 link_type, u8 addr_type);
973 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
974 u8 link_type, u8 addr_type, u8 status);
975 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
976 u8 addr_type, u8 status);
977 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
978 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
979 u8 status);
980 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
981 u8 status);
982 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
983 u8 link_type, u8 addr_type, __le32 value,
984 u8 confirm_hint);
985 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
986 u8 link_type, u8 addr_type, u8 status);
987 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
988 u8 link_type, u8 addr_type, u8 status);
989 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
990 u8 link_type, u8 addr_type);
991 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
992 u8 link_type, u8 addr_type, u8 status);
993 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
994 u8 link_type, u8 addr_type, u8 status);
995 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
996 u8 addr_type, u8 status);
997 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
998 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
999 u8 *randomizer, u8 status);
1000 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1001 u8 addr_type, u8 *dev_class, s8 rssi,
1002 u8 cfm_name, u8 *eir, u16 eir_len);
1003 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1004 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1005 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1006 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1007 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1008 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1009 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1010
1011 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1012
1013 /* HCI info for socket */
1014 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1015
1016 /* HCI socket flags */
1017 #define HCI_PI_MGMT_INIT 0
1018
1019 struct hci_pinfo {
1020 struct bt_sock bt;
1021 struct hci_dev *hdev;
1022 struct hci_filter filter;
1023 __u32 cmsg_mask;
1024 unsigned short channel;
1025 unsigned long flags;
1026 };
1027
1028 /* HCI security filter */
1029 #define HCI_SFLT_MAX_OGF 5
1030
1031 struct hci_sec_filter {
1032 __u32 type_mask;
1033 __u32 event_mask[2];
1034 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1035 };
1036
1037 /* ----- HCI requests ----- */
1038 #define HCI_REQ_DONE 0
1039 #define HCI_REQ_PEND 1
1040 #define HCI_REQ_CANCELED 2
1041
1042 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1043 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1044
1045 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1046
1047 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1048 u16 latency, u16 to_multiplier);
1049 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1050 __u8 ltk[16]);
1051 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
1052 void hci_le_ltk_neg_reply(struct hci_conn *conn);
1053
1054 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1055 int hci_cancel_inquiry(struct hci_dev *hdev);
1056 int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1057 int timeout);
1058
1059 #endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)