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Bluetooth: AMP: Handle AMP_LINK timeout
[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 <net/bluetooth/hci.h>
29
30 /* HCI priority */
31 #define HCI_PRIO_MAX 7
32
33 /* HCI Core structures */
34 struct inquiry_data {
35 bdaddr_t bdaddr;
36 __u8 pscan_rep_mode;
37 __u8 pscan_period_mode;
38 __u8 pscan_mode;
39 __u8 dev_class[3];
40 __le16 clock_offset;
41 __s8 rssi;
42 __u8 ssp_mode;
43 };
44
45 struct inquiry_entry {
46 struct list_head all; /* inq_cache.all */
47 struct list_head list; /* unknown or resolve */
48 enum {
49 NAME_NOT_KNOWN,
50 NAME_NEEDED,
51 NAME_PENDING,
52 NAME_KNOWN,
53 } name_state;
54 __u32 timestamp;
55 struct inquiry_data data;
56 };
57
58 struct discovery_state {
59 int type;
60 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
63 DISCOVERY_FINDING,
64 DISCOVERY_RESOLVING,
65 DISCOVERY_STOPPING,
66 } state;
67 struct list_head all; /* All devices found during inquiry */
68 struct list_head unknown; /* Name state not known */
69 struct list_head resolve; /* Name needs to be resolved */
70 __u32 timestamp;
71 };
72
73 struct hci_conn_hash {
74 struct list_head list;
75 unsigned int acl_num;
76 unsigned int sco_num;
77 unsigned int le_num;
78 };
79
80 struct bdaddr_list {
81 struct list_head list;
82 bdaddr_t bdaddr;
83 };
84
85 struct bt_uuid {
86 struct list_head list;
87 u8 uuid[16];
88 u8 svc_hint;
89 };
90
91 struct smp_ltk {
92 struct list_head list;
93 bdaddr_t bdaddr;
94 u8 bdaddr_type;
95 u8 authenticated;
96 u8 type;
97 u8 enc_size;
98 __le16 ediv;
99 u8 rand[8];
100 u8 val[16];
101 } __packed;
102
103 struct link_key {
104 struct list_head list;
105 bdaddr_t bdaddr;
106 u8 type;
107 u8 val[HCI_LINK_KEY_SIZE];
108 u8 pin_len;
109 };
110
111 struct oob_data {
112 struct list_head list;
113 bdaddr_t bdaddr;
114 u8 hash[16];
115 u8 randomizer[16];
116 };
117
118 struct le_scan_params {
119 u8 type;
120 u16 interval;
121 u16 window;
122 int timeout;
123 };
124
125 #define HCI_MAX_SHORT_NAME_LENGTH 10
126
127 struct amp_assoc {
128 __u16 len;
129 __u16 offset;
130 __u16 rem_len;
131 __u16 len_so_far;
132 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
133 };
134
135 #define NUM_REASSEMBLY 4
136 struct hci_dev {
137 struct list_head list;
138 struct mutex lock;
139
140 char name[8];
141 unsigned long flags;
142 __u16 id;
143 __u8 bus;
144 __u8 dev_type;
145 bdaddr_t bdaddr;
146 __u8 dev_name[HCI_MAX_NAME_LENGTH];
147 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
148 __u8 eir[HCI_MAX_EIR_LENGTH];
149 __u8 dev_class[3];
150 __u8 major_class;
151 __u8 minor_class;
152 __u8 features[8];
153 __u8 host_features[8];
154 __u8 commands[64];
155 __u8 hci_ver;
156 __u16 hci_rev;
157 __u8 lmp_ver;
158 __u16 manufacturer;
159 __u16 lmp_subver;
160 __u16 voice_setting;
161 __u8 io_capability;
162 __s8 inq_tx_power;
163 __u16 devid_source;
164 __u16 devid_vendor;
165 __u16 devid_product;
166 __u16 devid_version;
167
168 __u16 pkt_type;
169 __u16 esco_type;
170 __u16 link_policy;
171 __u16 link_mode;
172
173 __u32 idle_timeout;
174 __u16 sniff_min_interval;
175 __u16 sniff_max_interval;
176
177 __u8 amp_status;
178 __u32 amp_total_bw;
179 __u32 amp_max_bw;
180 __u32 amp_min_latency;
181 __u32 amp_max_pdu;
182 __u8 amp_type;
183 __u16 amp_pal_cap;
184 __u16 amp_assoc_size;
185 __u32 amp_max_flush_to;
186 __u32 amp_be_flush_to;
187
188 struct amp_assoc loc_assoc;
189
190 __u8 flow_ctl_mode;
191
192 unsigned int auto_accept_delay;
193
194 unsigned long quirks;
195
196 atomic_t cmd_cnt;
197 unsigned int acl_cnt;
198 unsigned int sco_cnt;
199 unsigned int le_cnt;
200
201 unsigned int acl_mtu;
202 unsigned int sco_mtu;
203 unsigned int le_mtu;
204 unsigned int acl_pkts;
205 unsigned int sco_pkts;
206 unsigned int le_pkts;
207
208 __u16 block_len;
209 __u16 block_mtu;
210 __u16 num_blocks;
211 __u16 block_cnt;
212
213 unsigned long acl_last_tx;
214 unsigned long sco_last_tx;
215 unsigned long le_last_tx;
216
217 struct workqueue_struct *workqueue;
218
219 struct work_struct power_on;
220 struct delayed_work power_off;
221
222 __u16 discov_timeout;
223 struct delayed_work discov_off;
224
225 struct delayed_work service_cache;
226
227 struct timer_list cmd_timer;
228
229 struct work_struct rx_work;
230 struct work_struct cmd_work;
231 struct work_struct tx_work;
232
233 struct sk_buff_head rx_q;
234 struct sk_buff_head raw_q;
235 struct sk_buff_head cmd_q;
236
237 struct sk_buff *sent_cmd;
238 struct sk_buff *reassembly[NUM_REASSEMBLY];
239
240 struct mutex req_lock;
241 wait_queue_head_t req_wait_q;
242 __u32 req_status;
243 __u32 req_result;
244
245 __u16 init_last_cmd;
246
247 struct list_head mgmt_pending;
248
249 struct discovery_state discovery;
250 struct hci_conn_hash conn_hash;
251 struct list_head blacklist;
252
253 struct list_head uuids;
254
255 struct list_head link_keys;
256
257 struct list_head long_term_keys;
258
259 struct list_head remote_oob_data;
260
261 struct hci_dev_stats stat;
262
263 struct sk_buff_head driver_init;
264
265 atomic_t promisc;
266
267 struct dentry *debugfs;
268
269 struct device dev;
270
271 struct rfkill *rfkill;
272
273 unsigned long dev_flags;
274
275 struct delayed_work le_scan_disable;
276
277 struct work_struct le_scan;
278 struct le_scan_params le_scan_params;
279
280 int (*open)(struct hci_dev *hdev);
281 int (*close)(struct hci_dev *hdev);
282 int (*flush)(struct hci_dev *hdev);
283 int (*send)(struct sk_buff *skb);
284 void (*notify)(struct hci_dev *hdev, unsigned int evt);
285 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
286 };
287
288 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
289
290 struct hci_conn {
291 struct list_head list;
292
293 atomic_t refcnt;
294
295 bdaddr_t dst;
296 __u8 dst_type;
297 __u16 handle;
298 __u16 state;
299 __u8 mode;
300 __u8 type;
301 bool out;
302 __u8 attempt;
303 __u8 dev_class[3];
304 __u8 features[8];
305 __u16 interval;
306 __u16 pkt_type;
307 __u16 link_policy;
308 __u32 link_mode;
309 __u8 key_type;
310 __u8 auth_type;
311 __u8 sec_level;
312 __u8 pending_sec_level;
313 __u8 pin_length;
314 __u8 enc_key_size;
315 __u8 io_capability;
316 __u32 passkey_notify;
317 __u8 passkey_entered;
318 __u16 disc_timeout;
319 unsigned long flags;
320
321 __u8 remote_cap;
322 __u8 remote_auth;
323 __u8 remote_id;
324 bool flush_key;
325
326 unsigned int sent;
327
328 struct sk_buff_head data_q;
329 struct list_head chan_list;
330
331 struct delayed_work disc_work;
332 struct timer_list idle_timer;
333 struct timer_list auto_accept_timer;
334
335 struct device dev;
336 atomic_t devref;
337
338 struct hci_dev *hdev;
339 void *l2cap_data;
340 void *sco_data;
341 void *smp_conn;
342 struct amp_mgr *amp_mgr;
343
344 struct hci_conn *link;
345
346 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
347 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
348 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
349 };
350
351 struct hci_chan {
352 struct list_head list;
353
354 struct hci_conn *conn;
355 struct sk_buff_head data_q;
356 unsigned int sent;
357 };
358
359 extern struct list_head hci_dev_list;
360 extern struct list_head hci_cb_list;
361 extern rwlock_t hci_dev_list_lock;
362 extern rwlock_t hci_cb_list_lock;
363
364 /* ----- HCI interface to upper protocols ----- */
365 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
366 extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
367 extern int l2cap_disconn_ind(struct hci_conn *hcon);
368 extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
369 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
370 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb,
371 u16 flags);
372
373 extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
374 extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
375 extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
376 extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
377
378 /* ----- Inquiry cache ----- */
379 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
380 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
381
382 static inline void discovery_init(struct hci_dev *hdev)
383 {
384 hdev->discovery.state = DISCOVERY_STOPPED;
385 INIT_LIST_HEAD(&hdev->discovery.all);
386 INIT_LIST_HEAD(&hdev->discovery.unknown);
387 INIT_LIST_HEAD(&hdev->discovery.resolve);
388 }
389
390 bool hci_discovery_active(struct hci_dev *hdev);
391
392 void hci_discovery_set_state(struct hci_dev *hdev, int state);
393
394 static inline int inquiry_cache_empty(struct hci_dev *hdev)
395 {
396 return list_empty(&hdev->discovery.all);
397 }
398
399 static inline long inquiry_cache_age(struct hci_dev *hdev)
400 {
401 struct discovery_state *c = &hdev->discovery;
402 return jiffies - c->timestamp;
403 }
404
405 static inline long inquiry_entry_age(struct inquiry_entry *e)
406 {
407 return jiffies - e->timestamp;
408 }
409
410 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
411 bdaddr_t *bdaddr);
412 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
413 bdaddr_t *bdaddr);
414 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
415 bdaddr_t *bdaddr,
416 int state);
417 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
418 struct inquiry_entry *ie);
419 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
420 bool name_known, bool *ssp);
421
422 /* ----- HCI Connections ----- */
423 enum {
424 HCI_CONN_AUTH_PEND,
425 HCI_CONN_REAUTH_PEND,
426 HCI_CONN_ENCRYPT_PEND,
427 HCI_CONN_RSWITCH_PEND,
428 HCI_CONN_MODE_CHANGE_PEND,
429 HCI_CONN_SCO_SETUP_PEND,
430 HCI_CONN_LE_SMP_PEND,
431 HCI_CONN_MGMT_CONNECTED,
432 HCI_CONN_SSP_ENABLED,
433 HCI_CONN_POWER_SAVE,
434 HCI_CONN_REMOTE_OOB,
435 };
436
437 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
438 {
439 struct hci_dev *hdev = conn->hdev;
440 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
441 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
442 }
443
444 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
445 {
446 struct hci_conn_hash *h = &hdev->conn_hash;
447 list_add_rcu(&c->list, &h->list);
448 switch (c->type) {
449 case ACL_LINK:
450 h->acl_num++;
451 break;
452 case LE_LINK:
453 h->le_num++;
454 break;
455 case SCO_LINK:
456 case ESCO_LINK:
457 h->sco_num++;
458 break;
459 }
460 }
461
462 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
463 {
464 struct hci_conn_hash *h = &hdev->conn_hash;
465
466 list_del_rcu(&c->list);
467 synchronize_rcu();
468
469 switch (c->type) {
470 case ACL_LINK:
471 h->acl_num--;
472 break;
473 case LE_LINK:
474 h->le_num--;
475 break;
476 case SCO_LINK:
477 case ESCO_LINK:
478 h->sco_num--;
479 break;
480 }
481 }
482
483 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
484 {
485 struct hci_conn_hash *h = &hdev->conn_hash;
486 switch (type) {
487 case ACL_LINK:
488 return h->acl_num;
489 case LE_LINK:
490 return h->le_num;
491 case SCO_LINK:
492 case ESCO_LINK:
493 return h->sco_num;
494 default:
495 return 0;
496 }
497 }
498
499 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
500 __u16 handle)
501 {
502 struct hci_conn_hash *h = &hdev->conn_hash;
503 struct hci_conn *c;
504
505 rcu_read_lock();
506
507 list_for_each_entry_rcu(c, &h->list, list) {
508 if (c->handle == handle) {
509 rcu_read_unlock();
510 return c;
511 }
512 }
513 rcu_read_unlock();
514
515 return NULL;
516 }
517
518 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
519 __u8 type, bdaddr_t *ba)
520 {
521 struct hci_conn_hash *h = &hdev->conn_hash;
522 struct hci_conn *c;
523
524 rcu_read_lock();
525
526 list_for_each_entry_rcu(c, &h->list, list) {
527 if (c->type == type && !bacmp(&c->dst, ba)) {
528 rcu_read_unlock();
529 return c;
530 }
531 }
532
533 rcu_read_unlock();
534
535 return NULL;
536 }
537
538 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
539 __u8 type, __u16 state)
540 {
541 struct hci_conn_hash *h = &hdev->conn_hash;
542 struct hci_conn *c;
543
544 rcu_read_lock();
545
546 list_for_each_entry_rcu(c, &h->list, list) {
547 if (c->type == type && c->state == state) {
548 rcu_read_unlock();
549 return c;
550 }
551 }
552
553 rcu_read_unlock();
554
555 return NULL;
556 }
557
558 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
559 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
560 void hci_sco_setup(struct hci_conn *conn, __u8 status);
561
562 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
563 int hci_conn_del(struct hci_conn *conn);
564 void hci_conn_hash_flush(struct hci_dev *hdev);
565 void hci_conn_check_pending(struct hci_dev *hdev);
566
567 struct hci_chan *hci_chan_create(struct hci_conn *conn);
568 void hci_chan_del(struct hci_chan *chan);
569 void hci_chan_list_flush(struct hci_conn *conn);
570
571 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
572 __u8 dst_type, __u8 sec_level, __u8 auth_type);
573 int hci_conn_check_link_mode(struct hci_conn *conn);
574 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
575 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
576 int hci_conn_change_link_key(struct hci_conn *conn);
577 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
578
579 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
580
581 void hci_conn_hold_device(struct hci_conn *conn);
582 void hci_conn_put_device(struct hci_conn *conn);
583
584 static inline void hci_conn_hold(struct hci_conn *conn)
585 {
586 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
587
588 atomic_inc(&conn->refcnt);
589 cancel_delayed_work(&conn->disc_work);
590 }
591
592 static inline void hci_conn_put(struct hci_conn *conn)
593 {
594 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
595
596 if (atomic_dec_and_test(&conn->refcnt)) {
597 unsigned long timeo;
598 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
599 del_timer(&conn->idle_timer);
600 if (conn->state == BT_CONNECTED) {
601 timeo = conn->disc_timeout;
602 if (!conn->out)
603 timeo *= 2;
604 } else {
605 timeo = msecs_to_jiffies(10);
606 }
607 } else {
608 timeo = msecs_to_jiffies(10);
609 }
610 cancel_delayed_work(&conn->disc_work);
611 queue_delayed_work(conn->hdev->workqueue,
612 &conn->disc_work, timeo);
613 }
614 }
615
616 /* ----- HCI Devices ----- */
617 static inline void hci_dev_put(struct hci_dev *d)
618 {
619 BT_DBG("%s orig refcnt %d", d->name,
620 atomic_read(&d->dev.kobj.kref.refcount));
621
622 put_device(&d->dev);
623 }
624
625 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
626 {
627 BT_DBG("%s orig refcnt %d", d->name,
628 atomic_read(&d->dev.kobj.kref.refcount));
629
630 get_device(&d->dev);
631 return d;
632 }
633
634 #define hci_dev_lock(d) mutex_lock(&d->lock)
635 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
636
637 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
638 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
639
640 static inline void *hci_get_drvdata(struct hci_dev *hdev)
641 {
642 return dev_get_drvdata(&hdev->dev);
643 }
644
645 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
646 {
647 dev_set_drvdata(&hdev->dev, data);
648 }
649
650 /* hci_dev_list shall be locked */
651 static inline uint8_t __hci_num_ctrl(void)
652 {
653 uint8_t count = 0;
654 struct list_head *p;
655
656 list_for_each(p, &hci_dev_list) {
657 count++;
658 }
659
660 return count;
661 }
662
663 struct hci_dev *hci_dev_get(int index);
664 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
665
666 struct hci_dev *hci_alloc_dev(void);
667 void hci_free_dev(struct hci_dev *hdev);
668 int hci_register_dev(struct hci_dev *hdev);
669 void hci_unregister_dev(struct hci_dev *hdev);
670 int hci_suspend_dev(struct hci_dev *hdev);
671 int hci_resume_dev(struct hci_dev *hdev);
672 int hci_dev_open(__u16 dev);
673 int hci_dev_close(__u16 dev);
674 int hci_dev_reset(__u16 dev);
675 int hci_dev_reset_stat(__u16 dev);
676 int hci_dev_cmd(unsigned int cmd, void __user *arg);
677 int hci_get_dev_list(void __user *arg);
678 int hci_get_dev_info(void __user *arg);
679 int hci_get_conn_list(void __user *arg);
680 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
681 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
682 int hci_inquiry(void __user *arg);
683
684 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
685 bdaddr_t *bdaddr);
686 int hci_blacklist_clear(struct hci_dev *hdev);
687 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
688 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
689
690 int hci_uuids_clear(struct hci_dev *hdev);
691
692 int hci_link_keys_clear(struct hci_dev *hdev);
693 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
694 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
695 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
696 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
697 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
698 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
699 __le16 ediv, u8 rand[8]);
700 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
701 u8 addr_type);
702 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
703 int hci_smp_ltks_clear(struct hci_dev *hdev);
704 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
705
706 int hci_remote_oob_data_clear(struct hci_dev *hdev);
707 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
708 bdaddr_t *bdaddr);
709 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
710 u8 *randomizer);
711 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
712
713 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
714
715 int hci_recv_frame(struct sk_buff *skb);
716 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
717 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
718
719 void hci_init_sysfs(struct hci_dev *hdev);
720 int hci_add_sysfs(struct hci_dev *hdev);
721 void hci_del_sysfs(struct hci_dev *hdev);
722 void hci_conn_init_sysfs(struct hci_conn *conn);
723 void hci_conn_add_sysfs(struct hci_conn *conn);
724 void hci_conn_del_sysfs(struct hci_conn *conn);
725
726 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
727
728 /* ----- LMP capabilities ----- */
729 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
730 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
731 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
732 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
733 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
734 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
735 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
736 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
737 #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
738
739 /* ----- Extended LMP capabilities ----- */
740 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
741
742 /* ----- HCI protocols ----- */
743 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
744 __u8 type)
745 {
746 switch (type) {
747 case ACL_LINK:
748 return l2cap_connect_ind(hdev, bdaddr);
749
750 case SCO_LINK:
751 case ESCO_LINK:
752 return sco_connect_ind(hdev, bdaddr);
753
754 default:
755 BT_ERR("unknown link type %d", type);
756 return -EINVAL;
757 }
758 }
759
760 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
761 {
762 switch (conn->type) {
763 case ACL_LINK:
764 case LE_LINK:
765 l2cap_connect_cfm(conn, status);
766 break;
767
768 case SCO_LINK:
769 case ESCO_LINK:
770 sco_connect_cfm(conn, status);
771 break;
772
773 default:
774 BT_ERR("unknown link type %d", conn->type);
775 break;
776 }
777
778 if (conn->connect_cfm_cb)
779 conn->connect_cfm_cb(conn, status);
780 }
781
782 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
783 {
784 if (conn->type != ACL_LINK && conn->type != LE_LINK)
785 return HCI_ERROR_REMOTE_USER_TERM;
786
787 return l2cap_disconn_ind(conn);
788 }
789
790 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
791 {
792 switch (conn->type) {
793 case ACL_LINK:
794 case LE_LINK:
795 l2cap_disconn_cfm(conn, reason);
796 break;
797
798 case SCO_LINK:
799 case ESCO_LINK:
800 sco_disconn_cfm(conn, reason);
801 break;
802
803 default:
804 BT_ERR("unknown link type %d", conn->type);
805 break;
806 }
807
808 if (conn->disconn_cfm_cb)
809 conn->disconn_cfm_cb(conn, reason);
810 }
811
812 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
813 {
814 __u8 encrypt;
815
816 if (conn->type != ACL_LINK && conn->type != LE_LINK)
817 return;
818
819 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
820 return;
821
822 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
823 l2cap_security_cfm(conn, status, encrypt);
824
825 if (conn->security_cfm_cb)
826 conn->security_cfm_cb(conn, status);
827 }
828
829 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
830 __u8 encrypt)
831 {
832 if (conn->type != ACL_LINK && conn->type != LE_LINK)
833 return;
834
835 l2cap_security_cfm(conn, status, encrypt);
836
837 if (conn->security_cfm_cb)
838 conn->security_cfm_cb(conn, status);
839 }
840
841 /* ----- HCI callbacks ----- */
842 struct hci_cb {
843 struct list_head list;
844
845 char *name;
846
847 void (*security_cfm) (struct hci_conn *conn, __u8 status,
848 __u8 encrypt);
849 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
850 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
851 };
852
853 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
854 {
855 struct list_head *p;
856 __u8 encrypt;
857
858 hci_proto_auth_cfm(conn, status);
859
860 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
861 return;
862
863 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
864
865 read_lock(&hci_cb_list_lock);
866 list_for_each(p, &hci_cb_list) {
867 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
868 if (cb->security_cfm)
869 cb->security_cfm(conn, status, encrypt);
870 }
871 read_unlock(&hci_cb_list_lock);
872 }
873
874 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
875 __u8 encrypt)
876 {
877 struct list_head *p;
878
879 if (conn->sec_level == BT_SECURITY_SDP)
880 conn->sec_level = BT_SECURITY_LOW;
881
882 if (conn->pending_sec_level > conn->sec_level)
883 conn->sec_level = conn->pending_sec_level;
884
885 hci_proto_encrypt_cfm(conn, status, encrypt);
886
887 read_lock(&hci_cb_list_lock);
888 list_for_each(p, &hci_cb_list) {
889 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
890 if (cb->security_cfm)
891 cb->security_cfm(conn, status, encrypt);
892 }
893 read_unlock(&hci_cb_list_lock);
894 }
895
896 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
897 {
898 struct list_head *p;
899
900 read_lock(&hci_cb_list_lock);
901 list_for_each(p, &hci_cb_list) {
902 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
903 if (cb->key_change_cfm)
904 cb->key_change_cfm(conn, status);
905 }
906 read_unlock(&hci_cb_list_lock);
907 }
908
909 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
910 __u8 role)
911 {
912 struct list_head *p;
913
914 read_lock(&hci_cb_list_lock);
915 list_for_each(p, &hci_cb_list) {
916 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
917 if (cb->role_switch_cfm)
918 cb->role_switch_cfm(conn, status, role);
919 }
920 read_unlock(&hci_cb_list_lock);
921 }
922
923 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
924 {
925 size_t parsed = 0;
926
927 if (data_len < 2)
928 return false;
929
930 while (parsed < data_len - 1) {
931 u8 field_len = data[0];
932
933 if (field_len == 0)
934 break;
935
936 parsed += field_len + 1;
937
938 if (parsed > data_len)
939 break;
940
941 if (data[1] == type)
942 return true;
943
944 data += field_len + 1;
945 }
946
947 return false;
948 }
949
950 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
951 {
952 size_t parsed = 0;
953
954 while (parsed < eir_len) {
955 u8 field_len = eir[0];
956
957 if (field_len == 0)
958 return parsed;
959
960 parsed += field_len + 1;
961 eir += field_len + 1;
962 }
963
964 return eir_len;
965 }
966
967 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
968 u8 data_len)
969 {
970 eir[eir_len++] = sizeof(type) + data_len;
971 eir[eir_len++] = type;
972 memcpy(&eir[eir_len], data, data_len);
973 eir_len += data_len;
974
975 return eir_len;
976 }
977
978 int hci_register_cb(struct hci_cb *hcb);
979 int hci_unregister_cb(struct hci_cb *hcb);
980
981 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
982 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
983 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
984
985 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
986
987 /* ----- HCI Sockets ----- */
988 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
989 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
990 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
991
992 void hci_sock_dev_event(struct hci_dev *hdev, int event);
993
994 /* Management interface */
995 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
996 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
997 BIT(BDADDR_LE_RANDOM))
998 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
999 BIT(BDADDR_LE_PUBLIC) | \
1000 BIT(BDADDR_LE_RANDOM))
1001
1002 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1003 int mgmt_index_added(struct hci_dev *hdev);
1004 int mgmt_index_removed(struct hci_dev *hdev);
1005 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1006 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1007 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1008 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1009 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1010 bool persistent);
1011 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1012 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1013 u8 *dev_class);
1014 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1015 u8 link_type, u8 addr_type, u8 reason);
1016 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1017 u8 link_type, u8 addr_type, u8 status);
1018 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1019 u8 addr_type, u8 status);
1020 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1021 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1022 u8 status);
1023 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1024 u8 status);
1025 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1026 u8 link_type, u8 addr_type, __le32 value,
1027 u8 confirm_hint);
1028 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1029 u8 link_type, u8 addr_type, u8 status);
1030 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1031 u8 link_type, u8 addr_type, u8 status);
1032 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1033 u8 link_type, u8 addr_type);
1034 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1035 u8 link_type, u8 addr_type, u8 status);
1036 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1037 u8 link_type, u8 addr_type, u8 status);
1038 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1039 u8 link_type, u8 addr_type, u32 passkey,
1040 u8 entered);
1041 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1042 u8 addr_type, u8 status);
1043 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1044 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1045 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1046 u8 status);
1047 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1048 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1049 u8 *randomizer, u8 status);
1050 int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1051 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1052 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1053 u8 ssp, u8 *eir, u16 eir_len);
1054 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1055 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1056 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1057 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1058 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1059 int mgmt_interleaved_discovery(struct hci_dev *hdev);
1060 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1061 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1062 bool mgmt_valid_hdev(struct hci_dev *hdev);
1063 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1064
1065 /* HCI info for socket */
1066 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1067
1068 struct hci_pinfo {
1069 struct bt_sock bt;
1070 struct hci_dev *hdev;
1071 struct hci_filter filter;
1072 __u32 cmsg_mask;
1073 unsigned short channel;
1074 };
1075
1076 /* HCI security filter */
1077 #define HCI_SFLT_MAX_OGF 5
1078
1079 struct hci_sec_filter {
1080 __u32 type_mask;
1081 __u32 event_mask[2];
1082 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1083 };
1084
1085 /* ----- HCI requests ----- */
1086 #define HCI_REQ_DONE 0
1087 #define HCI_REQ_PEND 1
1088 #define HCI_REQ_CANCELED 2
1089
1090 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1091 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1092
1093 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1094
1095 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1096 u16 latency, u16 to_multiplier);
1097 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1098 __u8 ltk[16]);
1099 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1100 int hci_cancel_inquiry(struct hci_dev *hdev);
1101 int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1102 int timeout);
1103 int hci_cancel_le_scan(struct hci_dev *hdev);
1104
1105 u8 bdaddr_to_le(u8 bdaddr_type);
1106
1107 #endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)