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Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / include / net / bluetooth / hci_core.h
blob9ffd27e2e9a92f9ce7698907d2be1c658ff937ae
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 upper protocols */
32 #define HCI_PROTO_L2CAP 0
33 #define HCI_PROTO_SCO 1
34
35 /* HCI Core structures */
36 struct inquiry_data {
37 bdaddr_t bdaddr;
38 __u8 pscan_rep_mode;
39 __u8 pscan_period_mode;
40 __u8 pscan_mode;
41 __u8 dev_class[3];
42 __le16 clock_offset;
43 __s8 rssi;
44 __u8 ssp_mode;
45 };
46
47 struct inquiry_entry {
48 struct inquiry_entry *next;
49 __u32 timestamp;
50 struct inquiry_data data;
51 };
52
53 struct inquiry_cache {
54 spinlock_t lock;
55 __u32 timestamp;
56 struct inquiry_entry *list;
57 };
58
59 struct hci_conn_hash {
60 struct list_head list;
61 spinlock_t lock;
62 unsigned int acl_num;
63 unsigned int sco_num;
64 unsigned int le_num;
65 };
66
67 struct bdaddr_list {
68 struct list_head list;
69 bdaddr_t bdaddr;
70 };
71
72 struct bt_uuid {
73 struct list_head list;
74 u8 uuid[16];
75 u8 svc_hint;
76 };
77
78 struct key_master_id {
79 __le16 ediv;
80 u8 rand[8];
81 } __packed;
82
83 struct link_key_data {
84 bdaddr_t bdaddr;
85 u8 type;
86 u8 val[16];
87 u8 pin_len;
88 u8 dlen;
89 u8 data[0];
90 } __packed;
91
92 struct link_key {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 type;
96 u8 val[16];
97 u8 pin_len;
98 u8 dlen;
99 u8 data[0];
100 };
101
102 struct oob_data {
103 struct list_head list;
104 bdaddr_t bdaddr;
105 u8 hash[16];
106 u8 randomizer[16];
107 };
108
109 struct adv_entry {
110 struct list_head list;
111 bdaddr_t bdaddr;
112 u8 bdaddr_type;
113 };
114
115 #define NUM_REASSEMBLY 4
116 struct hci_dev {
117 struct list_head list;
118 spinlock_t lock;
119 atomic_t refcnt;
120
121 char name[8];
122 unsigned long flags;
123 __u16 id;
124 __u8 bus;
125 __u8 dev_type;
126 bdaddr_t bdaddr;
127 __u8 dev_name[HCI_MAX_NAME_LENGTH];
128 __u8 eir[HCI_MAX_EIR_LENGTH];
129 __u8 dev_class[3];
130 __u8 major_class;
131 __u8 minor_class;
132 __u8 features[8];
133 __u8 extfeatures[8];
134 __u8 commands[64];
135 __u8 ssp_mode;
136 __u8 hci_ver;
137 __u16 hci_rev;
138 __u8 lmp_ver;
139 __u16 manufacturer;
140 __le16 lmp_subver;
141 __u16 voice_setting;
142 __u8 io_capability;
143
144 __u16 pkt_type;
145 __u16 esco_type;
146 __u16 link_policy;
147 __u16 link_mode;
148
149 __u32 idle_timeout;
150 __u16 sniff_min_interval;
151 __u16 sniff_max_interval;
152
153 unsigned int auto_accept_delay;
154
155 unsigned long quirks;
156
157 atomic_t cmd_cnt;
158 unsigned int acl_cnt;
159 unsigned int sco_cnt;
160 unsigned int le_cnt;
161
162 unsigned int acl_mtu;
163 unsigned int sco_mtu;
164 unsigned int le_mtu;
165 unsigned int acl_pkts;
166 unsigned int sco_pkts;
167 unsigned int le_pkts;
168
169 unsigned long acl_last_tx;
170 unsigned long sco_last_tx;
171 unsigned long le_last_tx;
172
173 struct workqueue_struct *workqueue;
174
175 struct work_struct power_on;
176 struct work_struct power_off;
177 struct timer_list off_timer;
178
179 struct timer_list cmd_timer;
180 struct tasklet_struct cmd_task;
181 struct tasklet_struct rx_task;
182 struct tasklet_struct tx_task;
183
184 struct sk_buff_head rx_q;
185 struct sk_buff_head raw_q;
186 struct sk_buff_head cmd_q;
187
188 struct sk_buff *sent_cmd;
189 struct sk_buff *reassembly[NUM_REASSEMBLY];
190
191 struct mutex req_lock;
192 wait_queue_head_t req_wait_q;
193 __u32 req_status;
194 __u32 req_result;
195
196 __u16 init_last_cmd;
197
198 struct crypto_blkcipher *tfm;
199
200 struct inquiry_cache inq_cache;
201 struct hci_conn_hash conn_hash;
202 struct list_head blacklist;
203
204 struct list_head uuids;
205
206 struct list_head link_keys;
207
208 struct list_head remote_oob_data;
209
210 struct list_head adv_entries;
211 struct timer_list adv_timer;
212
213 struct hci_dev_stats stat;
214
215 struct sk_buff_head driver_init;
216
217 void *driver_data;
218 void *core_data;
219
220 atomic_t promisc;
221
222 struct dentry *debugfs;
223
224 struct device *parent;
225 struct device dev;
226
227 struct rfkill *rfkill;
228
229 struct module *owner;
230
231 int (*open)(struct hci_dev *hdev);
232 int (*close)(struct hci_dev *hdev);
233 int (*flush)(struct hci_dev *hdev);
234 int (*send)(struct sk_buff *skb);
235 void (*destruct)(struct hci_dev *hdev);
236 void (*notify)(struct hci_dev *hdev, unsigned int evt);
237 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
238 };
239
240 struct hci_conn {
241 struct list_head list;
242
243 atomic_t refcnt;
244
245 bdaddr_t dst;
246 __u8 dst_type;
247 __u16 handle;
248 __u16 state;
249 __u8 mode;
250 __u8 type;
251 __u8 out;
252 __u8 attempt;
253 __u8 dev_class[3];
254 __u8 features[8];
255 __u8 ssp_mode;
256 __u16 interval;
257 __u16 pkt_type;
258 __u16 link_policy;
259 __u32 link_mode;
260 __u8 key_type;
261 __u8 auth_type;
262 __u8 sec_level;
263 __u8 pending_sec_level;
264 __u8 pin_length;
265 __u8 enc_key_size;
266 __u8 io_capability;
267 __u8 power_save;
268 __u16 disc_timeout;
269 unsigned long pend;
270
271 __u8 remote_cap;
272 __u8 remote_oob;
273 __u8 remote_auth;
274
275 unsigned int sent;
276
277 struct sk_buff_head data_q;
278
279 struct timer_list disc_timer;
280 struct timer_list idle_timer;
281 struct timer_list auto_accept_timer;
282
283 struct work_struct work_add;
284 struct work_struct work_del;
285
286 struct device dev;
287 atomic_t devref;
288
289 struct hci_dev *hdev;
290 void *l2cap_data;
291 void *sco_data;
292
293 struct hci_conn *link;
294
295 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
296 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
297 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
298 };
299
300 extern struct hci_proto *hci_proto[];
301 extern struct list_head hci_dev_list;
302 extern struct list_head hci_cb_list;
303 extern rwlock_t hci_dev_list_lock;
304 extern rwlock_t hci_cb_list_lock;
305
306 /* ----- Inquiry cache ----- */
307 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
308 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
309
310 #define inquiry_cache_lock(c) spin_lock(&c->lock)
311 #define inquiry_cache_unlock(c) spin_unlock(&c->lock)
312 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
313 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
314
315 static inline void inquiry_cache_init(struct hci_dev *hdev)
316 {
317 struct inquiry_cache *c = &hdev->inq_cache;
318 spin_lock_init(&c->lock);
319 c->list = NULL;
320 }
321
322 static inline int inquiry_cache_empty(struct hci_dev *hdev)
323 {
324 struct inquiry_cache *c = &hdev->inq_cache;
325 return c->list == NULL;
326 }
327
328 static inline long inquiry_cache_age(struct hci_dev *hdev)
329 {
330 struct inquiry_cache *c = &hdev->inq_cache;
331 return jiffies - c->timestamp;
332 }
333
334 static inline long inquiry_entry_age(struct inquiry_entry *e)
335 {
336 return jiffies - e->timestamp;
337 }
338
339 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
340 bdaddr_t *bdaddr);
341 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
342
343 /* ----- HCI Connections ----- */
344 enum {
345 HCI_CONN_AUTH_PEND,
346 HCI_CONN_REAUTH_PEND,
347 HCI_CONN_ENCRYPT_PEND,
348 HCI_CONN_RSWITCH_PEND,
349 HCI_CONN_MODE_CHANGE_PEND,
350 HCI_CONN_SCO_SETUP_PEND,
351 HCI_CONN_LE_SMP_PEND,
352 };
353
354 static inline void hci_conn_hash_init(struct hci_dev *hdev)
355 {
356 struct hci_conn_hash *h = &hdev->conn_hash;
357 INIT_LIST_HEAD(&h->list);
358 spin_lock_init(&h->lock);
359 h->acl_num = 0;
360 h->sco_num = 0;
361 }
362
363 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
364 {
365 struct hci_conn_hash *h = &hdev->conn_hash;
366 list_add(&c->list, &h->list);
367 switch (c->type) {
368 case ACL_LINK:
369 h->acl_num++;
370 break;
371 case LE_LINK:
372 h->le_num++;
373 break;
374 case SCO_LINK:
375 case ESCO_LINK:
376 h->sco_num++;
377 break;
378 }
379 }
380
381 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
382 {
383 struct hci_conn_hash *h = &hdev->conn_hash;
384 list_del(&c->list);
385 switch (c->type) {
386 case ACL_LINK:
387 h->acl_num--;
388 break;
389 case LE_LINK:
390 h->le_num--;
391 break;
392 case SCO_LINK:
393 case ESCO_LINK:
394 h->sco_num--;
395 break;
396 }
397 }
398
399 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
400 {
401 struct hci_conn_hash *h = &hdev->conn_hash;
402 switch (type) {
403 case ACL_LINK:
404 return h->acl_num;
405 case LE_LINK:
406 return h->le_num;
407 case SCO_LINK:
408 case ESCO_LINK:
409 return h->sco_num;
410 default:
411 return 0;
412 }
413 }
414
415 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
416 __u16 handle)
417 {
418 struct hci_conn_hash *h = &hdev->conn_hash;
419 struct list_head *p;
420 struct hci_conn *c;
421
422 list_for_each(p, &h->list) {
423 c = list_entry(p, struct hci_conn, list);
424 if (c->handle == handle)
425 return c;
426 }
427 return NULL;
428 }
429
430 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
431 __u8 type, bdaddr_t *ba)
432 {
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 struct list_head *p;
435 struct hci_conn *c;
436
437 list_for_each(p, &h->list) {
438 c = list_entry(p, struct hci_conn, list);
439 if (c->type == type && !bacmp(&c->dst, ba))
440 return c;
441 }
442 return NULL;
443 }
444
445 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
446 __u8 type, __u16 state)
447 {
448 struct hci_conn_hash *h = &hdev->conn_hash;
449 struct list_head *p;
450 struct hci_conn *c;
451
452 list_for_each(p, &h->list) {
453 c = list_entry(p, struct hci_conn, list);
454 if (c->type == type && c->state == state)
455 return c;
456 }
457 return NULL;
458 }
459
460 void hci_acl_connect(struct hci_conn *conn);
461 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
462 void hci_add_sco(struct hci_conn *conn, __u16 handle);
463 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
464 void hci_sco_setup(struct hci_conn *conn, __u8 status);
465
466 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
467 int hci_conn_del(struct hci_conn *conn);
468 void hci_conn_hash_flush(struct hci_dev *hdev);
469 void hci_conn_check_pending(struct hci_dev *hdev);
470
471 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
472 __u8 sec_level, __u8 auth_type);
473 int hci_conn_check_link_mode(struct hci_conn *conn);
474 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
475 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
476 int hci_conn_change_link_key(struct hci_conn *conn);
477 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
478
479 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
480 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
481
482 void hci_conn_hold_device(struct hci_conn *conn);
483 void hci_conn_put_device(struct hci_conn *conn);
484
485 static inline void hci_conn_hold(struct hci_conn *conn)
486 {
487 atomic_inc(&conn->refcnt);
488 del_timer(&conn->disc_timer);
489 }
490
491 static inline void hci_conn_put(struct hci_conn *conn)
492 {
493 if (atomic_dec_and_test(&conn->refcnt)) {
494 unsigned long timeo;
495 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
496 del_timer(&conn->idle_timer);
497 if (conn->state == BT_CONNECTED) {
498 timeo = msecs_to_jiffies(conn->disc_timeout);
499 if (!conn->out)
500 timeo *= 2;
501 } else {
502 timeo = msecs_to_jiffies(10);
503 }
504 } else {
505 timeo = msecs_to_jiffies(10);
506 }
507 mod_timer(&conn->disc_timer, jiffies + timeo);
508 }
509 }
510
511 /* ----- HCI Devices ----- */
512 static inline void __hci_dev_put(struct hci_dev *d)
513 {
514 if (atomic_dec_and_test(&d->refcnt))
515 d->destruct(d);
516 }
517
518 static inline void hci_dev_put(struct hci_dev *d)
519 {
520 __hci_dev_put(d);
521 module_put(d->owner);
522 }
523
524 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
525 {
526 atomic_inc(&d->refcnt);
527 return d;
528 }
529
530 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
531 {
532 if (try_module_get(d->owner))
533 return __hci_dev_hold(d);
534 return NULL;
535 }
536
537 #define hci_dev_lock(d) spin_lock(&d->lock)
538 #define hci_dev_unlock(d) spin_unlock(&d->lock)
539 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
540 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
541
542 struct hci_dev *hci_dev_get(int index);
543 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
544
545 struct hci_dev *hci_alloc_dev(void);
546 void hci_free_dev(struct hci_dev *hdev);
547 int hci_register_dev(struct hci_dev *hdev);
548 int hci_unregister_dev(struct hci_dev *hdev);
549 int hci_suspend_dev(struct hci_dev *hdev);
550 int hci_resume_dev(struct hci_dev *hdev);
551 int hci_dev_open(__u16 dev);
552 int hci_dev_close(__u16 dev);
553 int hci_dev_reset(__u16 dev);
554 int hci_dev_reset_stat(__u16 dev);
555 int hci_dev_cmd(unsigned int cmd, void __user *arg);
556 int hci_get_dev_list(void __user *arg);
557 int hci_get_dev_info(void __user *arg);
558 int hci_get_conn_list(void __user *arg);
559 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
560 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
561 int hci_inquiry(void __user *arg);
562
563 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
564 int hci_blacklist_clear(struct hci_dev *hdev);
565 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
566 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
567
568 int hci_uuids_clear(struct hci_dev *hdev);
569
570 int hci_link_keys_clear(struct hci_dev *hdev);
571 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
572 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
573 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
574 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
575 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
576 bdaddr_t *bdaddr, u8 type);
577 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
578 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
579 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
580
581 int hci_remote_oob_data_clear(struct hci_dev *hdev);
582 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
583 bdaddr_t *bdaddr);
584 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
585 u8 *randomizer);
586 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
587
588 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
589 int hci_adv_entries_clear(struct hci_dev *hdev);
590 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
591 int hci_add_adv_entry(struct hci_dev *hdev,
592 struct hci_ev_le_advertising_info *ev);
593
594 void hci_del_off_timer(struct hci_dev *hdev);
595
596 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
597
598 int hci_recv_frame(struct sk_buff *skb);
599 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
600 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
601
602 int hci_register_sysfs(struct hci_dev *hdev);
603 void hci_unregister_sysfs(struct hci_dev *hdev);
604 void hci_conn_init_sysfs(struct hci_conn *conn);
605 void hci_conn_add_sysfs(struct hci_conn *conn);
606 void hci_conn_del_sysfs(struct hci_conn *conn);
607
608 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
609
610 /* ----- LMP capabilities ----- */
611 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
612 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
613 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
614 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
615 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
616 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
617 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
618 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
619
620 /* ----- Extended LMP capabilities ----- */
621 #define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
622
623 /* ----- HCI protocols ----- */
624 struct hci_proto {
625 char *name;
626 unsigned int id;
627 unsigned long flags;
628
629 void *priv;
630
631 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
632 __u8 type);
633 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
634 int (*disconn_ind) (struct hci_conn *conn);
635 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
636 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
637 __u16 flags);
638 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
639 int (*security_cfm) (struct hci_conn *conn, __u8 status,
640 __u8 encrypt);
641 };
642
643 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
644 __u8 type)
645 {
646 register struct hci_proto *hp;
647 int mask = 0;
648
649 hp = hci_proto[HCI_PROTO_L2CAP];
650 if (hp && hp->connect_ind)
651 mask |= hp->connect_ind(hdev, bdaddr, type);
652
653 hp = hci_proto[HCI_PROTO_SCO];
654 if (hp && hp->connect_ind)
655 mask |= hp->connect_ind(hdev, bdaddr, type);
656
657 return mask;
658 }
659
660 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
661 {
662 register struct hci_proto *hp;
663
664 hp = hci_proto[HCI_PROTO_L2CAP];
665 if (hp && hp->connect_cfm)
666 hp->connect_cfm(conn, status);
667
668 hp = hci_proto[HCI_PROTO_SCO];
669 if (hp && hp->connect_cfm)
670 hp->connect_cfm(conn, status);
671
672 if (conn->connect_cfm_cb)
673 conn->connect_cfm_cb(conn, status);
674 }
675
676 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
677 {
678 register struct hci_proto *hp;
679 int reason = 0x13;
680
681 hp = hci_proto[HCI_PROTO_L2CAP];
682 if (hp && hp->disconn_ind)
683 reason = hp->disconn_ind(conn);
684
685 hp = hci_proto[HCI_PROTO_SCO];
686 if (hp && hp->disconn_ind)
687 reason = hp->disconn_ind(conn);
688
689 return reason;
690 }
691
692 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
693 {
694 register struct hci_proto *hp;
695
696 hp = hci_proto[HCI_PROTO_L2CAP];
697 if (hp && hp->disconn_cfm)
698 hp->disconn_cfm(conn, reason);
699
700 hp = hci_proto[HCI_PROTO_SCO];
701 if (hp && hp->disconn_cfm)
702 hp->disconn_cfm(conn, reason);
703
704 if (conn->disconn_cfm_cb)
705 conn->disconn_cfm_cb(conn, reason);
706 }
707
708 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
709 {
710 register struct hci_proto *hp;
711 __u8 encrypt;
712
713 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
714 return;
715
716 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
717
718 hp = hci_proto[HCI_PROTO_L2CAP];
719 if (hp && hp->security_cfm)
720 hp->security_cfm(conn, status, encrypt);
721
722 hp = hci_proto[HCI_PROTO_SCO];
723 if (hp && hp->security_cfm)
724 hp->security_cfm(conn, status, encrypt);
725
726 if (conn->security_cfm_cb)
727 conn->security_cfm_cb(conn, status);
728 }
729
730 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
731 __u8 encrypt)
732 {
733 register struct hci_proto *hp;
734
735 hp = hci_proto[HCI_PROTO_L2CAP];
736 if (hp && hp->security_cfm)
737 hp->security_cfm(conn, status, encrypt);
738
739 hp = hci_proto[HCI_PROTO_SCO];
740 if (hp && hp->security_cfm)
741 hp->security_cfm(conn, status, encrypt);
742
743 if (conn->security_cfm_cb)
744 conn->security_cfm_cb(conn, status);
745 }
746
747 int hci_register_proto(struct hci_proto *hproto);
748 int hci_unregister_proto(struct hci_proto *hproto);
749
750 /* ----- HCI callbacks ----- */
751 struct hci_cb {
752 struct list_head list;
753
754 char *name;
755
756 void (*security_cfm) (struct hci_conn *conn, __u8 status,
757 __u8 encrypt);
758 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
759 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
760 };
761
762 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
763 {
764 struct list_head *p;
765 __u8 encrypt;
766
767 hci_proto_auth_cfm(conn, status);
768
769 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
770 return;
771
772 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
773
774 read_lock_bh(&hci_cb_list_lock);
775 list_for_each(p, &hci_cb_list) {
776 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
777 if (cb->security_cfm)
778 cb->security_cfm(conn, status, encrypt);
779 }
780 read_unlock_bh(&hci_cb_list_lock);
781 }
782
783 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
784 __u8 encrypt)
785 {
786 struct list_head *p;
787
788 if (conn->sec_level == BT_SECURITY_SDP)
789 conn->sec_level = BT_SECURITY_LOW;
790
791 if (conn->pending_sec_level > conn->sec_level)
792 conn->sec_level = conn->pending_sec_level;
793
794 hci_proto_encrypt_cfm(conn, status, encrypt);
795
796 read_lock_bh(&hci_cb_list_lock);
797 list_for_each(p, &hci_cb_list) {
798 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
799 if (cb->security_cfm)
800 cb->security_cfm(conn, status, encrypt);
801 }
802 read_unlock_bh(&hci_cb_list_lock);
803 }
804
805 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
806 {
807 struct list_head *p;
808
809 read_lock_bh(&hci_cb_list_lock);
810 list_for_each(p, &hci_cb_list) {
811 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
812 if (cb->key_change_cfm)
813 cb->key_change_cfm(conn, status);
814 }
815 read_unlock_bh(&hci_cb_list_lock);
816 }
817
818 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
819 __u8 role)
820 {
821 struct list_head *p;
822
823 read_lock_bh(&hci_cb_list_lock);
824 list_for_each(p, &hci_cb_list) {
825 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
826 if (cb->role_switch_cfm)
827 cb->role_switch_cfm(conn, status, role);
828 }
829 read_unlock_bh(&hci_cb_list_lock);
830 }
831
832 int hci_register_cb(struct hci_cb *hcb);
833 int hci_unregister_cb(struct hci_cb *hcb);
834
835 int hci_register_notifier(struct notifier_block *nb);
836 int hci_unregister_notifier(struct notifier_block *nb);
837
838 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
839 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
840 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
841
842 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
843
844 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
845
846 /* ----- HCI Sockets ----- */
847 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
848 struct sock *skip_sk);
849
850 /* Management interface */
851 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
852 int mgmt_index_added(u16 index);
853 int mgmt_index_removed(u16 index);
854 int mgmt_powered(u16 index, u8 powered);
855 int mgmt_discoverable(u16 index, u8 discoverable);
856 int mgmt_connectable(u16 index, u8 connectable);
857 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
858 int mgmt_connected(u16 index, bdaddr_t *bdaddr, u8 link_type);
859 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
860 int mgmt_disconnect_failed(u16 index);
861 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
862 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
863 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
864 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
865 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
866 u8 confirm_hint);
867 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
868 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
869 u8 status);
870 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
871 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
872 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
873 u8 status);
874 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
875 u8 *eir);
876 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
877 int mgmt_discovering(u16 index, u8 discovering);
878 int mgmt_device_blocked(u16 index, bdaddr_t *bdaddr);
879 int mgmt_device_unblocked(u16 index, bdaddr_t *bdaddr);
880
881 /* HCI info for socket */
882 #define hci_pi(sk) ((struct hci_pinfo *) sk)
883
884 struct hci_pinfo {
885 struct bt_sock bt;
886 struct hci_dev *hdev;
887 struct hci_filter filter;
888 __u32 cmsg_mask;
889 unsigned short channel;
890 };
891
892 /* HCI security filter */
893 #define HCI_SFLT_MAX_OGF 5
894
895 struct hci_sec_filter {
896 __u32 type_mask;
897 __u32 event_mask[2];
898 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
899 };
900
901 /* ----- HCI requests ----- */
902 #define HCI_REQ_DONE 0
903 #define HCI_REQ_PEND 1
904 #define HCI_REQ_CANCELED 2
905
906 #define hci_req_lock(d) mutex_lock(&d->req_lock)
907 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
908
909 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
910
911 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
912 u16 latency, u16 to_multiplier);
913 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
914 __u8 ltk[16]);
915 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
916 void hci_le_ltk_neg_reply(struct hci_conn *conn);
917
918 #endif /* __HCI_CORE_H */
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