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 upper protocols */
31 #define HCI_PROTO_L2CAP 0
32 #define HCI_PROTO_SCO 1
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 inquiry_entry *next;
48 __u32 timestamp;
49 struct inquiry_data data;
50 };
51
52 struct inquiry_cache {
53 spinlock_t lock;
54 __u32 timestamp;
55 struct inquiry_entry *list;
56 };
57
58 struct hci_conn_hash {
59 struct list_head list;
60 spinlock_t lock;
61 unsigned int acl_num;
62 unsigned int sco_num;
63 unsigned int le_num;
64 };
65
66 struct bdaddr_list {
67 struct list_head list;
68 bdaddr_t bdaddr;
69 };
70
71 struct bt_uuid {
72 struct list_head list;
73 u8 uuid[16];
74 u8 svc_hint;
75 };
76
77 struct link_key {
78 struct list_head list;
79 bdaddr_t bdaddr;
80 u8 type;
81 u8 val[16];
82 u8 pin_len;
83 };
84
85 #define NUM_REASSEMBLY 4
86 struct hci_dev {
87 struct list_head list;
88 spinlock_t lock;
89 atomic_t refcnt;
90
91 char name[8];
92 unsigned long flags;
93 __u16 id;
94 __u8 bus;
95 __u8 dev_type;
96 bdaddr_t bdaddr;
97 __u8 dev_name[248];
98 __u8 dev_class[3];
99 __u8 major_class;
100 __u8 minor_class;
101 __u8 features[8];
102 __u8 commands[64];
103 __u8 ssp_mode;
104 __u8 hci_ver;
105 __u16 hci_rev;
106 __u8 lmp_ver;
107 __u16 manufacturer;
108 __le16 lmp_subver;
109 __u16 voice_setting;
110 __u8 io_capability;
111
112 __u16 pkt_type;
113 __u16 esco_type;
114 __u16 link_policy;
115 __u16 link_mode;
116
117 __u32 idle_timeout;
118 __u16 sniff_min_interval;
119 __u16 sniff_max_interval;
120
121 unsigned long quirks;
122
123 atomic_t cmd_cnt;
124 unsigned int acl_cnt;
125 unsigned int sco_cnt;
126 unsigned int le_cnt;
127
128 unsigned int acl_mtu;
129 unsigned int sco_mtu;
130 unsigned int le_mtu;
131 unsigned int acl_pkts;
132 unsigned int sco_pkts;
133 unsigned int le_pkts;
134
135 unsigned long acl_last_tx;
136 unsigned long sco_last_tx;
137 unsigned long le_last_tx;
138
139 struct workqueue_struct *workqueue;
140
141 struct work_struct power_on;
142 struct work_struct power_off;
143 struct timer_list off_timer;
144
145 struct timer_list cmd_timer;
146 struct tasklet_struct cmd_task;
147 struct tasklet_struct rx_task;
148 struct tasklet_struct tx_task;
149
150 struct sk_buff_head rx_q;
151 struct sk_buff_head raw_q;
152 struct sk_buff_head cmd_q;
153
154 struct sk_buff *sent_cmd;
155 struct sk_buff *reassembly[NUM_REASSEMBLY];
156
157 struct mutex req_lock;
158 wait_queue_head_t req_wait_q;
159 __u32 req_status;
160 __u32 req_result;
161
162 __u16 init_last_cmd;
163
164 struct inquiry_cache inq_cache;
165 struct hci_conn_hash conn_hash;
166 struct list_head blacklist;
167
168 struct list_head uuids;
169
170 struct list_head link_keys;
171
172 struct hci_dev_stats stat;
173
174 struct sk_buff_head driver_init;
175
176 void *driver_data;
177 void *core_data;
178
179 atomic_t promisc;
180
181 struct dentry *debugfs;
182
183 struct device *parent;
184 struct device dev;
185
186 struct rfkill *rfkill;
187
188 struct module *owner;
189
190 int (*open)(struct hci_dev *hdev);
191 int (*close)(struct hci_dev *hdev);
192 int (*flush)(struct hci_dev *hdev);
193 int (*send)(struct sk_buff *skb);
194 void (*destruct)(struct hci_dev *hdev);
195 void (*notify)(struct hci_dev *hdev, unsigned int evt);
196 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
197 };
198
199 struct hci_conn {
200 struct list_head list;
201
202 atomic_t refcnt;
203 spinlock_t lock;
204
205 bdaddr_t dst;
206 __u16 handle;
207 __u16 state;
208 __u8 mode;
209 __u8 type;
210 __u8 out;
211 __u8 attempt;
212 __u8 dev_class[3];
213 __u8 features[8];
214 __u8 ssp_mode;
215 __u16 interval;
216 __u16 pkt_type;
217 __u16 link_policy;
218 __u32 link_mode;
219 __u8 auth_type;
220 __u8 sec_level;
221 __u8 pending_sec_level;
222 __u8 pin_length;
223 __u8 io_capability;
224 __u8 power_save;
225 __u16 disc_timeout;
226 unsigned long pend;
227
228 __u8 remote_cap;
229 __u8 remote_oob;
230 __u8 remote_auth;
231
232 unsigned int sent;
233
234 struct sk_buff_head data_q;
235
236 struct timer_list disc_timer;
237 struct timer_list idle_timer;
238
239 struct work_struct work_add;
240 struct work_struct work_del;
241
242 struct device dev;
243 atomic_t devref;
244
245 struct hci_dev *hdev;
246 void *l2cap_data;
247 void *sco_data;
248 void *priv;
249
250 struct hci_conn *link;
251
252 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
253 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
254 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
255 };
256
257 extern struct hci_proto *hci_proto[];
258 extern struct list_head hci_dev_list;
259 extern struct list_head hci_cb_list;
260 extern rwlock_t hci_dev_list_lock;
261 extern rwlock_t hci_cb_list_lock;
262
263 /* ----- Inquiry cache ----- */
264 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
265 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
266
267 #define inquiry_cache_lock(c) spin_lock(&c->lock)
268 #define inquiry_cache_unlock(c) spin_unlock(&c->lock)
269 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
270 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
271
inquiry_cache_init(struct hci_dev * hdev)272 static inline void inquiry_cache_init(struct hci_dev *hdev)
273 {
274 struct inquiry_cache *c = &hdev->inq_cache;
275 spin_lock_init(&c->lock);
276 c->list = NULL;
277 }
278
inquiry_cache_empty(struct hci_dev * hdev)279 static inline int inquiry_cache_empty(struct hci_dev *hdev)
280 {
281 struct inquiry_cache *c = &hdev->inq_cache;
282 return c->list == NULL;
283 }
284
inquiry_cache_age(struct hci_dev * hdev)285 static inline long inquiry_cache_age(struct hci_dev *hdev)
286 {
287 struct inquiry_cache *c = &hdev->inq_cache;
288 return jiffies - c->timestamp;
289 }
290
inquiry_entry_age(struct inquiry_entry * e)291 static inline long inquiry_entry_age(struct inquiry_entry *e)
292 {
293 return jiffies - e->timestamp;
294 }
295
296 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
297 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
298
299 /* ----- HCI Connections ----- */
300 enum {
301 HCI_CONN_AUTH_PEND,
302 HCI_CONN_ENCRYPT_PEND,
303 HCI_CONN_RSWITCH_PEND,
304 HCI_CONN_MODE_CHANGE_PEND,
305 HCI_CONN_SCO_SETUP_PEND,
306 };
307
hci_conn_hash_init(struct hci_dev * hdev)308 static inline void hci_conn_hash_init(struct hci_dev *hdev)
309 {
310 struct hci_conn_hash *h = &hdev->conn_hash;
311 INIT_LIST_HEAD(&h->list);
312 spin_lock_init(&h->lock);
313 h->acl_num = 0;
314 h->sco_num = 0;
315 }
316
hci_conn_hash_add(struct hci_dev * hdev,struct hci_conn * c)317 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
318 {
319 struct hci_conn_hash *h = &hdev->conn_hash;
320 list_add(&c->list, &h->list);
321 switch (c->type) {
322 case ACL_LINK:
323 h->acl_num++;
324 break;
325 case LE_LINK:
326 h->le_num++;
327 break;
328 case SCO_LINK:
329 case ESCO_LINK:
330 h->sco_num++;
331 break;
332 }
333 }
334
hci_conn_hash_del(struct hci_dev * hdev,struct hci_conn * c)335 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
336 {
337 struct hci_conn_hash *h = &hdev->conn_hash;
338 list_del(&c->list);
339 switch (c->type) {
340 case ACL_LINK:
341 h->acl_num--;
342 break;
343 case LE_LINK:
344 h->le_num--;
345 break;
346 case SCO_LINK:
347 case ESCO_LINK:
348 h->sco_num--;
349 break;
350 }
351 }
352
hci_conn_hash_lookup_handle(struct hci_dev * hdev,__u16 handle)353 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
354 __u16 handle)
355 {
356 struct hci_conn_hash *h = &hdev->conn_hash;
357 struct list_head *p;
358 struct hci_conn *c;
359
360 list_for_each(p, &h->list) {
361 c = list_entry(p, struct hci_conn, list);
362 if (c->handle == handle)
363 return c;
364 }
365 return NULL;
366 }
367
hci_conn_hash_lookup_ba(struct hci_dev * hdev,__u8 type,bdaddr_t * ba)368 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
369 __u8 type, bdaddr_t *ba)
370 {
371 struct hci_conn_hash *h = &hdev->conn_hash;
372 struct list_head *p;
373 struct hci_conn *c;
374
375 list_for_each(p, &h->list) {
376 c = list_entry(p, struct hci_conn, list);
377 if (c->type == type && !bacmp(&c->dst, ba))
378 return c;
379 }
380 return NULL;
381 }
382
hci_conn_hash_lookup_state(struct hci_dev * hdev,__u8 type,__u16 state)383 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
384 __u8 type, __u16 state)
385 {
386 struct hci_conn_hash *h = &hdev->conn_hash;
387 struct list_head *p;
388 struct hci_conn *c;
389
390 list_for_each(p, &h->list) {
391 c = list_entry(p, struct hci_conn, list);
392 if (c->type == type && c->state == state)
393 return c;
394 }
395 return NULL;
396 }
397
398 void hci_acl_connect(struct hci_conn *conn);
399 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
400 void hci_add_sco(struct hci_conn *conn, __u16 handle);
401 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
402 void hci_sco_setup(struct hci_conn *conn, __u8 status);
403
404 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
405 int hci_conn_del(struct hci_conn *conn);
406 void hci_conn_hash_flush(struct hci_dev *hdev);
407 void hci_conn_check_pending(struct hci_dev *hdev);
408
409 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
410 int hci_conn_check_link_mode(struct hci_conn *conn);
411 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
412 int hci_conn_change_link_key(struct hci_conn *conn);
413 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
414
415 void hci_conn_enter_active_mode(struct hci_conn *conn);
416 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
417
418 void hci_conn_hold_device(struct hci_conn *conn);
419 void hci_conn_put_device(struct hci_conn *conn);
420
hci_conn_hold(struct hci_conn * conn)421 static inline void hci_conn_hold(struct hci_conn *conn)
422 {
423 atomic_inc(&conn->refcnt);
424 del_timer(&conn->disc_timer);
425 }
426
hci_conn_put(struct hci_conn * conn)427 static inline void hci_conn_put(struct hci_conn *conn)
428 {
429 if (atomic_dec_and_test(&conn->refcnt)) {
430 unsigned long timeo;
431 if (conn->type == ACL_LINK) {
432 del_timer(&conn->idle_timer);
433 if (conn->state == BT_CONNECTED) {
434 timeo = msecs_to_jiffies(conn->disc_timeout);
435 if (!conn->out)
436 timeo *= 2;
437 } else
438 timeo = msecs_to_jiffies(10);
439 } else
440 timeo = msecs_to_jiffies(10);
441 mod_timer(&conn->disc_timer, jiffies + timeo);
442 }
443 }
444
445 /* ----- HCI Devices ----- */
__hci_dev_put(struct hci_dev * d)446 static inline void __hci_dev_put(struct hci_dev *d)
447 {
448 if (atomic_dec_and_test(&d->refcnt))
449 d->destruct(d);
450 }
451
hci_dev_put(struct hci_dev * d)452 static inline void hci_dev_put(struct hci_dev *d)
453 {
454 __hci_dev_put(d);
455 module_put(d->owner);
456 }
457
__hci_dev_hold(struct hci_dev * d)458 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
459 {
460 atomic_inc(&d->refcnt);
461 return d;
462 }
463
hci_dev_hold(struct hci_dev * d)464 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
465 {
466 if (try_module_get(d->owner))
467 return __hci_dev_hold(d);
468 return NULL;
469 }
470
471 #define hci_dev_lock(d) spin_lock(&d->lock)
472 #define hci_dev_unlock(d) spin_unlock(&d->lock)
473 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
474 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
475
476 struct hci_dev *hci_dev_get(int index);
477 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
478
479 struct hci_dev *hci_alloc_dev(void);
480 void hci_free_dev(struct hci_dev *hdev);
481 int hci_register_dev(struct hci_dev *hdev);
482 int hci_unregister_dev(struct hci_dev *hdev);
483 int hci_suspend_dev(struct hci_dev *hdev);
484 int hci_resume_dev(struct hci_dev *hdev);
485 int hci_dev_open(__u16 dev);
486 int hci_dev_close(__u16 dev);
487 int hci_dev_reset(__u16 dev);
488 int hci_dev_reset_stat(__u16 dev);
489 int hci_dev_cmd(unsigned int cmd, void __user *arg);
490 int hci_get_dev_list(void __user *arg);
491 int hci_get_dev_info(void __user *arg);
492 int hci_get_conn_list(void __user *arg);
493 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
494 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
495 int hci_inquiry(void __user *arg);
496
497 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
498 int hci_blacklist_clear(struct hci_dev *hdev);
499
500 int hci_uuids_clear(struct hci_dev *hdev);
501
502 int hci_link_keys_clear(struct hci_dev *hdev);
503 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
504 int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
505 u8 *key, u8 type, u8 pin_len);
506 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
507
508 void hci_del_off_timer(struct hci_dev *hdev);
509
510 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
511
512 int hci_recv_frame(struct sk_buff *skb);
513 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
514 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
515
516 int hci_register_sysfs(struct hci_dev *hdev);
517 void hci_unregister_sysfs(struct hci_dev *hdev);
518 void hci_conn_init_sysfs(struct hci_conn *conn);
519 void hci_conn_add_sysfs(struct hci_conn *conn);
520 void hci_conn_del_sysfs(struct hci_conn *conn);
521
522 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
523
524 /* ----- LMP capabilities ----- */
525 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
526 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
527 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
528 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
529 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
530 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
531 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
532 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
533
534 /* ----- HCI protocols ----- */
535 struct hci_proto {
536 char *name;
537 unsigned int id;
538 unsigned long flags;
539
540 void *priv;
541
542 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
543 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
544 int (*disconn_ind) (struct hci_conn *conn);
545 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
546 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
547 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
548 int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
549 };
550
hci_proto_connect_ind(struct hci_dev * hdev,bdaddr_t * bdaddr,__u8 type)551 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
552 {
553 register struct hci_proto *hp;
554 int mask = 0;
555
556 hp = hci_proto[HCI_PROTO_L2CAP];
557 if (hp && hp->connect_ind)
558 mask |= hp->connect_ind(hdev, bdaddr, type);
559
560 hp = hci_proto[HCI_PROTO_SCO];
561 if (hp && hp->connect_ind)
562 mask |= hp->connect_ind(hdev, bdaddr, type);
563
564 return mask;
565 }
566
hci_proto_connect_cfm(struct hci_conn * conn,__u8 status)567 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
568 {
569 register struct hci_proto *hp;
570
571 hp = hci_proto[HCI_PROTO_L2CAP];
572 if (hp && hp->connect_cfm)
573 hp->connect_cfm(conn, status);
574
575 hp = hci_proto[HCI_PROTO_SCO];
576 if (hp && hp->connect_cfm)
577 hp->connect_cfm(conn, status);
578
579 if (conn->connect_cfm_cb)
580 conn->connect_cfm_cb(conn, status);
581 }
582
hci_proto_disconn_ind(struct hci_conn * conn)583 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
584 {
585 register struct hci_proto *hp;
586 int reason = 0x13;
587
588 hp = hci_proto[HCI_PROTO_L2CAP];
589 if (hp && hp->disconn_ind)
590 reason = hp->disconn_ind(conn);
591
592 hp = hci_proto[HCI_PROTO_SCO];
593 if (hp && hp->disconn_ind)
594 reason = hp->disconn_ind(conn);
595
596 return reason;
597 }
598
hci_proto_disconn_cfm(struct hci_conn * conn,__u8 reason)599 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
600 {
601 register struct hci_proto *hp;
602
603 hp = hci_proto[HCI_PROTO_L2CAP];
604 if (hp && hp->disconn_cfm)
605 hp->disconn_cfm(conn, reason);
606
607 hp = hci_proto[HCI_PROTO_SCO];
608 if (hp && hp->disconn_cfm)
609 hp->disconn_cfm(conn, reason);
610
611 if (conn->disconn_cfm_cb)
612 conn->disconn_cfm_cb(conn, reason);
613 }
614
hci_proto_auth_cfm(struct hci_conn * conn,__u8 status)615 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
616 {
617 register struct hci_proto *hp;
618 __u8 encrypt;
619
620 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
621 return;
622
623 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
624
625 hp = hci_proto[HCI_PROTO_L2CAP];
626 if (hp && hp->security_cfm)
627 hp->security_cfm(conn, status, encrypt);
628
629 hp = hci_proto[HCI_PROTO_SCO];
630 if (hp && hp->security_cfm)
631 hp->security_cfm(conn, status, encrypt);
632
633 if (conn->security_cfm_cb)
634 conn->security_cfm_cb(conn, status);
635 }
636
hci_proto_encrypt_cfm(struct hci_conn * conn,__u8 status,__u8 encrypt)637 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
638 {
639 register struct hci_proto *hp;
640
641 hp = hci_proto[HCI_PROTO_L2CAP];
642 if (hp && hp->security_cfm)
643 hp->security_cfm(conn, status, encrypt);
644
645 hp = hci_proto[HCI_PROTO_SCO];
646 if (hp && hp->security_cfm)
647 hp->security_cfm(conn, status, encrypt);
648
649 if (conn->security_cfm_cb)
650 conn->security_cfm_cb(conn, status);
651 }
652
653 int hci_register_proto(struct hci_proto *hproto);
654 int hci_unregister_proto(struct hci_proto *hproto);
655
656 /* ----- HCI callbacks ----- */
657 struct hci_cb {
658 struct list_head list;
659
660 char *name;
661
662 void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt);
663 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
664 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
665 };
666
hci_auth_cfm(struct hci_conn * conn,__u8 status)667 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
668 {
669 struct list_head *p;
670 __u8 encrypt;
671
672 hci_proto_auth_cfm(conn, status);
673
674 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
675 return;
676
677 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
678
679 read_lock_bh(&hci_cb_list_lock);
680 list_for_each(p, &hci_cb_list) {
681 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
682 if (cb->security_cfm)
683 cb->security_cfm(conn, status, encrypt);
684 }
685 read_unlock_bh(&hci_cb_list_lock);
686 }
687
hci_encrypt_cfm(struct hci_conn * conn,__u8 status,__u8 encrypt)688 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
689 {
690 struct list_head *p;
691
692 if (conn->sec_level == BT_SECURITY_SDP)
693 conn->sec_level = BT_SECURITY_LOW;
694
695 hci_proto_encrypt_cfm(conn, status, encrypt);
696
697 read_lock_bh(&hci_cb_list_lock);
698 list_for_each(p, &hci_cb_list) {
699 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
700 if (cb->security_cfm)
701 cb->security_cfm(conn, status, encrypt);
702 }
703 read_unlock_bh(&hci_cb_list_lock);
704 }
705
hci_key_change_cfm(struct hci_conn * conn,__u8 status)706 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
707 {
708 struct list_head *p;
709
710 read_lock_bh(&hci_cb_list_lock);
711 list_for_each(p, &hci_cb_list) {
712 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
713 if (cb->key_change_cfm)
714 cb->key_change_cfm(conn, status);
715 }
716 read_unlock_bh(&hci_cb_list_lock);
717 }
718
hci_role_switch_cfm(struct hci_conn * conn,__u8 status,__u8 role)719 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
720 {
721 struct list_head *p;
722
723 read_lock_bh(&hci_cb_list_lock);
724 list_for_each(p, &hci_cb_list) {
725 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
726 if (cb->role_switch_cfm)
727 cb->role_switch_cfm(conn, status, role);
728 }
729 read_unlock_bh(&hci_cb_list_lock);
730 }
731
732 int hci_register_cb(struct hci_cb *hcb);
733 int hci_unregister_cb(struct hci_cb *hcb);
734
735 int hci_register_notifier(struct notifier_block *nb);
736 int hci_unregister_notifier(struct notifier_block *nb);
737
738 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
739 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
740 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
741
742 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
743
744 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
745
746 /* ----- HCI Sockets ----- */
747 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
748 struct sock *skip_sk);
749
750 /* Management interface */
751 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
752 int mgmt_index_added(u16 index);
753 int mgmt_index_removed(u16 index);
754 int mgmt_powered(u16 index, u8 powered);
755 int mgmt_discoverable(u16 index, u8 discoverable);
756 int mgmt_connectable(u16 index, u8 connectable);
757 int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type);
758 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
759 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
760 int mgmt_disconnect_failed(u16 index);
761 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
762 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr);
763 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
764 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
765 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value);
766 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
767 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
768 u8 status);
769 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
770
771 /* HCI info for socket */
772 #define hci_pi(sk) ((struct hci_pinfo *) sk)
773
774 struct hci_pinfo {
775 struct bt_sock bt;
776 struct hci_dev *hdev;
777 struct hci_filter filter;
778 __u32 cmsg_mask;
779 unsigned short channel;
780 };
781
782 /* HCI security filter */
783 #define HCI_SFLT_MAX_OGF 5
784
785 struct hci_sec_filter {
786 __u32 type_mask;
787 __u32 event_mask[2];
788 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
789 };
790
791 /* ----- HCI requests ----- */
792 #define HCI_REQ_DONE 0
793 #define HCI_REQ_PEND 1
794 #define HCI_REQ_CANCELED 2
795
796 #define hci_req_lock(d) mutex_lock(&d->req_lock)
797 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
798
799 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
800
801 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
802 u16 latency, u16 to_multiplier);
803 #endif /* __HCI_CORE_H */
804