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Bluetooth: Add address type to mgmt blacklist messages
[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 *driver_data;
258 void *core_data;
259
260 atomic_t promisc;
261
262 struct dentry *debugfs;
263
264 struct device *parent;
265 struct device dev;
266
267 struct rfkill *rfkill;
268
269 unsigned long dev_flags;
270
271 struct delayed_work le_scan_disable;
272
273 struct work_struct le_scan;
274 struct le_scan_params le_scan_params;
275
276 int (*open)(struct hci_dev *hdev);
277 int (*close)(struct hci_dev *hdev);
278 int (*flush)(struct hci_dev *hdev);
279 int (*send)(struct sk_buff *skb);
280 void (*notify)(struct hci_dev *hdev, unsigned int evt);
281 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
282 };
283
284 struct hci_conn {
285 struct list_head list;
286
287 atomic_t refcnt;
288
289 bdaddr_t dst;
290 __u8 dst_type;
291 __u16 handle;
292 __u16 state;
293 __u8 mode;
294 __u8 type;
295 bool out;
296 __u8 attempt;
297 __u8 dev_class[3];
298 __u8 features[8];
299 __u16 interval;
300 __u16 pkt_type;
301 __u16 link_policy;
302 __u32 link_mode;
303 __u8 key_type;
304 __u8 auth_type;
305 __u8 sec_level;
306 __u8 pending_sec_level;
307 __u8 pin_length;
308 __u8 enc_key_size;
309 __u8 io_capability;
310 __u16 disc_timeout;
311 unsigned long flags;
312
313 __u8 remote_cap;
314 __u8 remote_auth;
315
316 unsigned int sent;
317
318 struct sk_buff_head data_q;
319 struct list_head chan_list;
320
321 struct delayed_work disc_work;
322 struct timer_list idle_timer;
323 struct timer_list auto_accept_timer;
324
325 struct device dev;
326 atomic_t devref;
327
328 struct hci_dev *hdev;
329 void *l2cap_data;
330 void *sco_data;
331 void *smp_conn;
332
333 struct hci_conn *link;
334
335 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
336 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
337 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
338 };
339
340 struct hci_chan {
341 struct list_head list;
342
343 struct hci_conn *conn;
344 struct sk_buff_head data_q;
345 unsigned int sent;
346 };
347
348 extern struct list_head hci_dev_list;
349 extern struct list_head hci_cb_list;
350 extern rwlock_t hci_dev_list_lock;
351 extern rwlock_t hci_cb_list_lock;
352
353 /* ----- HCI interface to upper protocols ----- */
354 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
355 extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
356 extern int l2cap_disconn_ind(struct hci_conn *hcon);
357 extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
358 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
359 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
360
361 extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
362 extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
363 extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
364 extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
365
366 /* ----- Inquiry cache ----- */
367 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
368 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
369
370 static inline void discovery_init(struct hci_dev *hdev)
371 {
372 hdev->discovery.state = DISCOVERY_STOPPED;
373 INIT_LIST_HEAD(&hdev->discovery.all);
374 INIT_LIST_HEAD(&hdev->discovery.unknown);
375 INIT_LIST_HEAD(&hdev->discovery.resolve);
376 }
377
378 bool hci_discovery_active(struct hci_dev *hdev);
379
380 void hci_discovery_set_state(struct hci_dev *hdev, int state);
381
382 static inline int inquiry_cache_empty(struct hci_dev *hdev)
383 {
384 return list_empty(&hdev->discovery.all);
385 }
386
387 static inline long inquiry_cache_age(struct hci_dev *hdev)
388 {
389 struct discovery_state *c = &hdev->discovery;
390 return jiffies - c->timestamp;
391 }
392
393 static inline long inquiry_entry_age(struct inquiry_entry *e)
394 {
395 return jiffies - e->timestamp;
396 }
397
398 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
399 bdaddr_t *bdaddr);
400 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
401 bdaddr_t *bdaddr);
402 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
403 bdaddr_t *bdaddr,
404 int state);
405 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
406 struct inquiry_entry *ie);
407 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
408 bool name_known);
409
410 /* ----- HCI Connections ----- */
411 enum {
412 HCI_CONN_AUTH_PEND,
413 HCI_CONN_REAUTH_PEND,
414 HCI_CONN_ENCRYPT_PEND,
415 HCI_CONN_RSWITCH_PEND,
416 HCI_CONN_MODE_CHANGE_PEND,
417 HCI_CONN_SCO_SETUP_PEND,
418 HCI_CONN_LE_SMP_PEND,
419 HCI_CONN_MGMT_CONNECTED,
420 HCI_CONN_SSP_ENABLED,
421 HCI_CONN_POWER_SAVE,
422 HCI_CONN_REMOTE_OOB,
423 };
424
425 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
426 {
427 struct hci_dev *hdev = conn->hdev;
428 return (test_bit(HCI_SSP_ENABLED, &hdev->flags) &&
429 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
430 }
431
432 static inline void hci_conn_hash_init(struct hci_dev *hdev)
433 {
434 struct hci_conn_hash *h = &hdev->conn_hash;
435 INIT_LIST_HEAD(&h->list);
436 h->acl_num = 0;
437 h->sco_num = 0;
438 h->le_num = 0;
439 }
440
441 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
442 {
443 struct hci_conn_hash *h = &hdev->conn_hash;
444 list_add_rcu(&c->list, &h->list);
445 switch (c->type) {
446 case ACL_LINK:
447 h->acl_num++;
448 break;
449 case LE_LINK:
450 h->le_num++;
451 break;
452 case SCO_LINK:
453 case ESCO_LINK:
454 h->sco_num++;
455 break;
456 }
457 }
458
459 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
460 {
461 struct hci_conn_hash *h = &hdev->conn_hash;
462
463 list_del_rcu(&c->list);
464 synchronize_rcu();
465
466 switch (c->type) {
467 case ACL_LINK:
468 h->acl_num--;
469 break;
470 case LE_LINK:
471 h->le_num--;
472 break;
473 case SCO_LINK:
474 case ESCO_LINK:
475 h->sco_num--;
476 break;
477 }
478 }
479
480 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
481 {
482 struct hci_conn_hash *h = &hdev->conn_hash;
483 switch (type) {
484 case ACL_LINK:
485 return h->acl_num;
486 case LE_LINK:
487 return h->le_num;
488 case SCO_LINK:
489 case ESCO_LINK:
490 return h->sco_num;
491 default:
492 return 0;
493 }
494 }
495
496 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
497 __u16 handle)
498 {
499 struct hci_conn_hash *h = &hdev->conn_hash;
500 struct hci_conn *c;
501
502 rcu_read_lock();
503
504 list_for_each_entry_rcu(c, &h->list, list) {
505 if (c->handle == handle) {
506 rcu_read_unlock();
507 return c;
508 }
509 }
510 rcu_read_unlock();
511
512 return NULL;
513 }
514
515 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
516 __u8 type, bdaddr_t *ba)
517 {
518 struct hci_conn_hash *h = &hdev->conn_hash;
519 struct hci_conn *c;
520
521 rcu_read_lock();
522
523 list_for_each_entry_rcu(c, &h->list, list) {
524 if (c->type == type && !bacmp(&c->dst, ba)) {
525 rcu_read_unlock();
526 return c;
527 }
528 }
529
530 rcu_read_unlock();
531
532 return NULL;
533 }
534
535 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
536 __u8 type, __u16 state)
537 {
538 struct hci_conn_hash *h = &hdev->conn_hash;
539 struct hci_conn *c;
540
541 rcu_read_lock();
542
543 list_for_each_entry_rcu(c, &h->list, list) {
544 if (c->type == type && c->state == state) {
545 rcu_read_unlock();
546 return c;
547 }
548 }
549
550 rcu_read_unlock();
551
552 return NULL;
553 }
554
555 void hci_acl_connect(struct hci_conn *conn);
556 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
557 void hci_add_sco(struct hci_conn *conn, __u16 handle);
558 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
559 void hci_sco_setup(struct hci_conn *conn, __u8 status);
560
561 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
562 int hci_conn_del(struct hci_conn *conn);
563 void hci_conn_hash_flush(struct hci_dev *hdev);
564 void hci_conn_check_pending(struct hci_dev *hdev);
565
566 struct hci_chan *hci_chan_create(struct hci_conn *conn);
567 int hci_chan_del(struct hci_chan *chan);
568 void hci_chan_list_flush(struct hci_conn *conn);
569
570 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
571 __u8 sec_level, __u8 auth_type);
572 int hci_conn_check_link_mode(struct hci_conn *conn);
573 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
574 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
575 int hci_conn_change_link_key(struct hci_conn *conn);
576 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
577
578 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
579
580 void hci_conn_hold_device(struct hci_conn *conn);
581 void hci_conn_put_device(struct hci_conn *conn);
582
583 static inline void hci_conn_hold(struct hci_conn *conn)
584 {
585 atomic_inc(&conn->refcnt);
586 cancel_delayed_work(&conn->disc_work);
587 }
588
589 static inline void hci_conn_put(struct hci_conn *conn)
590 {
591 if (atomic_dec_and_test(&conn->refcnt)) {
592 unsigned long timeo;
593 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
594 del_timer(&conn->idle_timer);
595 if (conn->state == BT_CONNECTED) {
596 timeo = msecs_to_jiffies(conn->disc_timeout);
597 if (!conn->out)
598 timeo *= 2;
599 } else {
600 timeo = msecs_to_jiffies(10);
601 }
602 } else {
603 timeo = msecs_to_jiffies(10);
604 }
605 cancel_delayed_work(&conn->disc_work);
606 queue_delayed_work(conn->hdev->workqueue,
607 &conn->disc_work, timeo);
608 }
609 }
610
611 /* ----- HCI Devices ----- */
612 static inline void hci_dev_put(struct hci_dev *d)
613 {
614 put_device(&d->dev);
615 }
616
617 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
618 {
619 get_device(&d->dev);
620 return d;
621 }
622
623 #define hci_dev_lock(d) mutex_lock(&d->lock)
624 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
625
626 struct hci_dev *hci_dev_get(int index);
627 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
628
629 struct hci_dev *hci_alloc_dev(void);
630 void hci_free_dev(struct hci_dev *hdev);
631 int hci_register_dev(struct hci_dev *hdev);
632 void hci_unregister_dev(struct hci_dev *hdev);
633 int hci_suspend_dev(struct hci_dev *hdev);
634 int hci_resume_dev(struct hci_dev *hdev);
635 int hci_dev_open(__u16 dev);
636 int hci_dev_close(__u16 dev);
637 int hci_dev_reset(__u16 dev);
638 int hci_dev_reset_stat(__u16 dev);
639 int hci_dev_cmd(unsigned int cmd, void __user *arg);
640 int hci_get_dev_list(void __user *arg);
641 int hci_get_dev_info(void __user *arg);
642 int hci_get_conn_list(void __user *arg);
643 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
644 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
645 int hci_inquiry(void __user *arg);
646
647 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
648 int hci_blacklist_clear(struct hci_dev *hdev);
649 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
650 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
651
652 int hci_uuids_clear(struct hci_dev *hdev);
653
654 int hci_link_keys_clear(struct hci_dev *hdev);
655 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
656 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
657 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
658 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
659 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
660 int new_key, u8 authenticated, u8 tk[16],
661 u8 enc_size, u16 ediv, u8 rand[8]);
662 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
663 u8 addr_type);
664 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
665 int hci_smp_ltks_clear(struct hci_dev *hdev);
666 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
667
668 int hci_remote_oob_data_clear(struct hci_dev *hdev);
669 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
670 bdaddr_t *bdaddr);
671 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
672 u8 *randomizer);
673 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
674
675 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
676 int hci_adv_entries_clear(struct hci_dev *hdev);
677 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
678 int hci_add_adv_entry(struct hci_dev *hdev,
679 struct hci_ev_le_advertising_info *ev);
680
681 void hci_del_off_timer(struct hci_dev *hdev);
682
683 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
684
685 int hci_recv_frame(struct sk_buff *skb);
686 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
687 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
688
689 void hci_init_sysfs(struct hci_dev *hdev);
690 int hci_add_sysfs(struct hci_dev *hdev);
691 void hci_del_sysfs(struct hci_dev *hdev);
692 void hci_conn_init_sysfs(struct hci_conn *conn);
693 void hci_conn_add_sysfs(struct hci_conn *conn);
694 void hci_conn_del_sysfs(struct hci_conn *conn);
695
696 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
697
698 /* ----- LMP capabilities ----- */
699 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
700 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
701 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
702 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
703 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
704 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
705 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
706 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
707
708 /* ----- Extended LMP capabilities ----- */
709 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
710
711 /* ----- HCI protocols ----- */
712 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
713 __u8 type)
714 {
715 switch (type) {
716 case ACL_LINK:
717 return l2cap_connect_ind(hdev, bdaddr);
718
719 case SCO_LINK:
720 case ESCO_LINK:
721 return sco_connect_ind(hdev, bdaddr);
722
723 default:
724 BT_ERR("unknown link type %d", type);
725 return -EINVAL;
726 }
727 }
728
729 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
730 {
731 switch (conn->type) {
732 case ACL_LINK:
733 case LE_LINK:
734 l2cap_connect_cfm(conn, status);
735 break;
736
737 case SCO_LINK:
738 case ESCO_LINK:
739 sco_connect_cfm(conn, status);
740 break;
741
742 default:
743 BT_ERR("unknown link type %d", conn->type);
744 break;
745 }
746
747 if (conn->connect_cfm_cb)
748 conn->connect_cfm_cb(conn, status);
749 }
750
751 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
752 {
753 if (conn->type != ACL_LINK && conn->type != LE_LINK)
754 return HCI_ERROR_REMOTE_USER_TERM;
755
756 return l2cap_disconn_ind(conn);
757 }
758
759 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
760 {
761 switch (conn->type) {
762 case ACL_LINK:
763 case LE_LINK:
764 l2cap_disconn_cfm(conn, reason);
765 break;
766
767 case SCO_LINK:
768 case ESCO_LINK:
769 sco_disconn_cfm(conn, reason);
770 break;
771
772 default:
773 BT_ERR("unknown link type %d", conn->type);
774 break;
775 }
776
777 if (conn->disconn_cfm_cb)
778 conn->disconn_cfm_cb(conn, reason);
779 }
780
781 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
782 {
783 __u8 encrypt;
784
785 if (conn->type != ACL_LINK && conn->type != LE_LINK)
786 return;
787
788 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
789 return;
790
791 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
792 l2cap_security_cfm(conn, status, encrypt);
793
794 if (conn->security_cfm_cb)
795 conn->security_cfm_cb(conn, status);
796 }
797
798 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
799 __u8 encrypt)
800 {
801 if (conn->type != ACL_LINK && conn->type != LE_LINK)
802 return;
803
804 l2cap_security_cfm(conn, status, encrypt);
805
806 if (conn->security_cfm_cb)
807 conn->security_cfm_cb(conn, status);
808 }
809
810 /* ----- HCI callbacks ----- */
811 struct hci_cb {
812 struct list_head list;
813
814 char *name;
815
816 void (*security_cfm) (struct hci_conn *conn, __u8 status,
817 __u8 encrypt);
818 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
819 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
820 };
821
822 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
823 {
824 struct list_head *p;
825 __u8 encrypt;
826
827 hci_proto_auth_cfm(conn, status);
828
829 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
830 return;
831
832 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
833
834 read_lock(&hci_cb_list_lock);
835 list_for_each(p, &hci_cb_list) {
836 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
837 if (cb->security_cfm)
838 cb->security_cfm(conn, status, encrypt);
839 }
840 read_unlock(&hci_cb_list_lock);
841 }
842
843 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
844 __u8 encrypt)
845 {
846 struct list_head *p;
847
848 if (conn->sec_level == BT_SECURITY_SDP)
849 conn->sec_level = BT_SECURITY_LOW;
850
851 if (conn->pending_sec_level > conn->sec_level)
852 conn->sec_level = conn->pending_sec_level;
853
854 hci_proto_encrypt_cfm(conn, status, encrypt);
855
856 read_lock(&hci_cb_list_lock);
857 list_for_each(p, &hci_cb_list) {
858 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
859 if (cb->security_cfm)
860 cb->security_cfm(conn, status, encrypt);
861 }
862 read_unlock(&hci_cb_list_lock);
863 }
864
865 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
866 {
867 struct list_head *p;
868
869 read_lock(&hci_cb_list_lock);
870 list_for_each(p, &hci_cb_list) {
871 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
872 if (cb->key_change_cfm)
873 cb->key_change_cfm(conn, status);
874 }
875 read_unlock(&hci_cb_list_lock);
876 }
877
878 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
879 __u8 role)
880 {
881 struct list_head *p;
882
883 read_lock(&hci_cb_list_lock);
884 list_for_each(p, &hci_cb_list) {
885 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
886 if (cb->role_switch_cfm)
887 cb->role_switch_cfm(conn, status, role);
888 }
889 read_unlock(&hci_cb_list_lock);
890 }
891
892 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
893 {
894 u8 field_len;
895 size_t parsed;
896
897 for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
898 field_len = data[0];
899
900 if (field_len == 0)
901 break;
902
903 parsed += field_len + 1;
904
905 if (parsed > data_len)
906 break;
907
908 if (data[1] == type)
909 return true;
910
911 data += field_len + 1;
912 }
913
914 return false;
915 }
916
917 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
918 u8 data_len)
919 {
920 eir[eir_len++] = sizeof(type) + data_len;
921 eir[eir_len++] = type;
922 memcpy(&eir[eir_len], data, data_len);
923 eir_len += data_len;
924
925 return eir_len;
926 }
927
928 int hci_register_cb(struct hci_cb *hcb);
929 int hci_unregister_cb(struct hci_cb *hcb);
930
931 int hci_register_notifier(struct notifier_block *nb);
932 int hci_unregister_notifier(struct notifier_block *nb);
933
934 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
935 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
936 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
937
938 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
939
940 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
941
942 /* ----- HCI Sockets ----- */
943 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
944 struct sock *skip_sk);
945
946 /* Management interface */
947 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
948 int mgmt_index_added(struct hci_dev *hdev);
949 int mgmt_index_removed(struct hci_dev *hdev);
950 int mgmt_powered(struct hci_dev *hdev, u8 powered);
951 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
952 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
953 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
954 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
955 u8 persistent);
956 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
957 u8 addr_type, u8 *name, u8 name_len,
958 u8 *dev_class);
959 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
960 u8 link_type, u8 addr_type);
961 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
962 u8 link_type, u8 addr_type, u8 status);
963 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
964 u8 addr_type, u8 status);
965 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
966 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
967 u8 status);
968 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
969 u8 status);
970 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
971 u8 link_type, u8 addr_type, __le32 value,
972 u8 confirm_hint);
973 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
974 u8 link_type, u8 addr_type, u8 status);
975 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
976 u8 link_type, u8 addr_type, u8 status);
977 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
978 u8 link_type, u8 addr_type);
979 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
980 u8 link_type, u8 addr_type, u8 status);
981 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
982 u8 link_type, u8 addr_type, u8 status);
983 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
984 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
985 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
986 u8 *randomizer, u8 status);
987 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
988 u8 addr_type, u8 *dev_class, s8 rssi,
989 u8 cfm_name, u8 *eir, u16 eir_len);
990 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
991 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
992 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
993 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
994 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
995 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
996 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
997
998 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
999
1000 /* HCI info for socket */
1001 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1002
1003 /* HCI socket flags */
1004 #define HCI_PI_MGMT_INIT 0
1005
1006 struct hci_pinfo {
1007 struct bt_sock bt;
1008 struct hci_dev *hdev;
1009 struct hci_filter filter;
1010 __u32 cmsg_mask;
1011 unsigned short channel;
1012 unsigned long flags;
1013 };
1014
1015 /* HCI security filter */
1016 #define HCI_SFLT_MAX_OGF 5
1017
1018 struct hci_sec_filter {
1019 __u32 type_mask;
1020 __u32 event_mask[2];
1021 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1022 };
1023
1024 /* ----- HCI requests ----- */
1025 #define HCI_REQ_DONE 0
1026 #define HCI_REQ_PEND 1
1027 #define HCI_REQ_CANCELED 2
1028
1029 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1030 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1031
1032 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1033
1034 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1035 u16 latency, u16 to_multiplier);
1036 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1037 __u8 ltk[16]);
1038 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
1039 void hci_le_ltk_neg_reply(struct hci_conn *conn);
1040
1041 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1042 int hci_cancel_inquiry(struct hci_dev *hdev);
1043 int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1044 int timeout);
1045
1046 #endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)