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Bluetooth: Add support for HCI monitor channel
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / net / bluetooth / hci_core.h
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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 */
35struct 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
46struct 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
59struct discovery_state {
60 int type;
61 enum {
62 DISCOVERY_STOPPED,
63 DISCOVERY_STARTING,
64 DISCOVERY_FINDING,
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
74struct 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
81struct bdaddr_list {
82 struct list_head list;
83 bdaddr_t bdaddr;
84};
85
86struct bt_uuid {
87 struct list_head list;
88 u8 uuid[16];
89 u8 svc_hint;
90};
91
92struct 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
104struct link_key {
105 struct list_head list;
106 bdaddr_t bdaddr;
107 u8 type;
108 u8 val[16];
109 u8 pin_len;
110};
111
112struct oob_data {
113 struct list_head list;
114 bdaddr_t bdaddr;
115 u8 hash[16];
116 u8 randomizer[16];
117};
118
119struct adv_entry {
120 struct list_head list;
121 bdaddr_t bdaddr;
122 u8 bdaddr_type;
123};
124
125struct le_scan_params {
126 u8 type;
127 u16 interval;
128 u16 window;
129 int timeout;
130};
131
132#define NUM_REASSEMBLY 4
133struct hci_dev {
134 struct list_head list;
135 struct mutex lock;
136
137 char name[8];
138 unsigned long flags;
139 __u16 id;
140 __u8 bus;
141 __u8 dev_type;
142 bdaddr_t bdaddr;
143 __u8 dev_name[HCI_MAX_NAME_LENGTH];
144 __u8 eir[HCI_MAX_EIR_LENGTH];
145 __u8 dev_class[3];
146 __u8 major_class;
147 __u8 minor_class;
148 __u8 features[8];
149 __u8 host_features[8];
150 __u8 commands[64];
151 __u8 hci_ver;
152 __u16 hci_rev;
153 __u8 lmp_ver;
154 __u16 manufacturer;
155 __le16 lmp_subver;
156 __u16 voice_setting;
157 __u8 io_capability;
158
159 __u16 pkt_type;
160 __u16 esco_type;
161 __u16 link_policy;
162 __u16 link_mode;
163
164 __u32 idle_timeout;
165 __u16 sniff_min_interval;
166 __u16 sniff_max_interval;
167
168 __u8 amp_status;
169 __u32 amp_total_bw;
170 __u32 amp_max_bw;
171 __u32 amp_min_latency;
172 __u32 amp_max_pdu;
173 __u8 amp_type;
174 __u16 amp_pal_cap;
175 __u16 amp_assoc_size;
176 __u32 amp_max_flush_to;
177 __u32 amp_be_flush_to;
178
179 __u8 flow_ctl_mode;
180
181 unsigned int auto_accept_delay;
182
183 unsigned long quirks;
184
185 atomic_t cmd_cnt;
186 unsigned int acl_cnt;
187 unsigned int sco_cnt;
188 unsigned int le_cnt;
189
190 unsigned int acl_mtu;
191 unsigned int sco_mtu;
192 unsigned int le_mtu;
193 unsigned int acl_pkts;
194 unsigned int sco_pkts;
195 unsigned int le_pkts;
196
197 __u16 block_len;
198 __u16 block_mtu;
199 __u16 num_blocks;
200 __u16 block_cnt;
201
202 unsigned long acl_last_tx;
203 unsigned long sco_last_tx;
204 unsigned long le_last_tx;
205
206 struct workqueue_struct *workqueue;
207
208 struct work_struct power_on;
209 struct delayed_work power_off;
210
211 __u16 discov_timeout;
212 struct delayed_work discov_off;
213
214 struct delayed_work service_cache;
215
216 struct timer_list cmd_timer;
217
218 struct work_struct rx_work;
219 struct work_struct cmd_work;
220 struct work_struct tx_work;
221
222 struct sk_buff_head rx_q;
223 struct sk_buff_head raw_q;
224 struct sk_buff_head cmd_q;
225
226 struct sk_buff *sent_cmd;
227 struct sk_buff *reassembly[NUM_REASSEMBLY];
228
229 struct mutex req_lock;
230 wait_queue_head_t req_wait_q;
231 __u32 req_status;
232 __u32 req_result;
233
234 __u16 init_last_cmd;
235
236 struct list_head mgmt_pending;
237
238 struct discovery_state discovery;
239 struct hci_conn_hash conn_hash;
240 struct list_head blacklist;
241
242 struct list_head uuids;
243
244 struct list_head link_keys;
245
246 struct list_head long_term_keys;
247
248 struct list_head remote_oob_data;
249
250 struct list_head adv_entries;
251 struct delayed_work adv_work;
252
253 struct hci_dev_stats stat;
254
255 struct sk_buff_head driver_init;
256
257 void *core_data;
258
259 atomic_t promisc;
260
261 struct dentry *debugfs;
262
263 struct device *parent;
264 struct device dev;
265
266 struct rfkill *rfkill;
267
268 unsigned long dev_flags;
269
270 struct delayed_work le_scan_disable;
271
272 struct work_struct le_scan;
273 struct le_scan_params le_scan_params;
274
275 int (*open)(struct hci_dev *hdev);
276 int (*close)(struct hci_dev *hdev);
277 int (*flush)(struct hci_dev *hdev);
278 int (*send)(struct sk_buff *skb);
279 void (*notify)(struct hci_dev *hdev, unsigned int evt);
280 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
281};
282
283struct hci_conn {
284 struct list_head list;
285
286 atomic_t refcnt;
287
288 bdaddr_t dst;
289 __u8 dst_type;
290 __u16 handle;
291 __u16 state;
292 __u8 mode;
293 __u8 type;
294 bool out;
295 __u8 attempt;
296 __u8 dev_class[3];
297 __u8 features[8];
298 __u16 interval;
299 __u16 pkt_type;
300 __u16 link_policy;
301 __u32 link_mode;
302 __u8 key_type;
303 __u8 auth_type;
304 __u8 sec_level;
305 __u8 pending_sec_level;
306 __u8 pin_length;
307 __u8 enc_key_size;
308 __u8 io_capability;
309 __u16 disc_timeout;
310 unsigned long flags;
311
312 __u8 remote_cap;
313 __u8 remote_auth;
314
315 unsigned int sent;
316
317 struct sk_buff_head data_q;
318 struct list_head chan_list;
319
320 struct delayed_work disc_work;
321 struct timer_list idle_timer;
322 struct timer_list auto_accept_timer;
323
324 struct device dev;
325 atomic_t devref;
326
327 struct hci_dev *hdev;
328 void *l2cap_data;
329 void *sco_data;
330 void *smp_conn;
331
332 struct hci_conn *link;
333
334 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
335 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
336 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
337};
338
339struct hci_chan {
340 struct list_head list;
341
342 struct hci_conn *conn;
343 struct sk_buff_head data_q;
344 unsigned int sent;
345};
346
347extern struct list_head hci_dev_list;
348extern struct list_head hci_cb_list;
349extern rwlock_t hci_dev_list_lock;
350extern rwlock_t hci_cb_list_lock;
351
352/* ----- HCI interface to upper protocols ----- */
353extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
354extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
355extern int l2cap_disconn_ind(struct hci_conn *hcon);
356extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
357extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
358extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
359
360extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
361extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status);
362extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
363extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
364
365/* ----- Inquiry cache ----- */
366#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
367#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
368
369static inline void discovery_init(struct hci_dev *hdev)
370{
371 hdev->discovery.state = DISCOVERY_STOPPED;
372 INIT_LIST_HEAD(&hdev->discovery.all);
373 INIT_LIST_HEAD(&hdev->discovery.unknown);
374 INIT_LIST_HEAD(&hdev->discovery.resolve);
375}
376
377bool hci_discovery_active(struct hci_dev *hdev);
378
379void hci_discovery_set_state(struct hci_dev *hdev, int state);
380
381static inline int inquiry_cache_empty(struct hci_dev *hdev)
382{
383 return list_empty(&hdev->discovery.all);
384}
385
386static inline long inquiry_cache_age(struct hci_dev *hdev)
387{
388 struct discovery_state *c = &hdev->discovery;
389 return jiffies - c->timestamp;
390}
391
392static inline long inquiry_entry_age(struct inquiry_entry *e)
393{
394 return jiffies - e->timestamp;
395}
396
397struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
398 bdaddr_t *bdaddr);
399struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
400 bdaddr_t *bdaddr);
401struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
402 bdaddr_t *bdaddr,
403 int state);
404void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
405 struct inquiry_entry *ie);
406bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
407 bool name_known);
408
409/* ----- HCI Connections ----- */
410enum {
411 HCI_CONN_AUTH_PEND,
412 HCI_CONN_REAUTH_PEND,
413 HCI_CONN_ENCRYPT_PEND,
414 HCI_CONN_RSWITCH_PEND,
415 HCI_CONN_MODE_CHANGE_PEND,
416 HCI_CONN_SCO_SETUP_PEND,
417 HCI_CONN_LE_SMP_PEND,
418 HCI_CONN_MGMT_CONNECTED,
419 HCI_CONN_SSP_ENABLED,
420 HCI_CONN_POWER_SAVE,
421 HCI_CONN_REMOTE_OOB,
422};
423
424static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
425{
426 struct hci_dev *hdev = conn->hdev;
427 return (test_bit(HCI_SSP_ENABLED, &hdev->flags) &&
428 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags));
429}
430
431static inline void hci_conn_hash_init(struct hci_dev *hdev)
432{
433 struct hci_conn_hash *h = &hdev->conn_hash;
434 INIT_LIST_HEAD(&h->list);
435 h->acl_num = 0;
436 h->sco_num = 0;
437 h->le_num = 0;
438}
439
440static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
441{
442 struct hci_conn_hash *h = &hdev->conn_hash;
443 list_add_rcu(&c->list, &h->list);
444 switch (c->type) {
445 case ACL_LINK:
446 h->acl_num++;
447 break;
448 case LE_LINK:
449 h->le_num++;
450 break;
451 case SCO_LINK:
452 case ESCO_LINK:
453 h->sco_num++;
454 break;
455 }
456}
457
458static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
459{
460 struct hci_conn_hash *h = &hdev->conn_hash;
461
462 list_del_rcu(&c->list);
463 synchronize_rcu();
464
465 switch (c->type) {
466 case ACL_LINK:
467 h->acl_num--;
468 break;
469 case LE_LINK:
470 h->le_num--;
471 break;
472 case SCO_LINK:
473 case ESCO_LINK:
474 h->sco_num--;
475 break;
476 }
477}
478
479static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
480{
481 struct hci_conn_hash *h = &hdev->conn_hash;
482 switch (type) {
483 case ACL_LINK:
484 return h->acl_num;
485 case LE_LINK:
486 return h->le_num;
487 case SCO_LINK:
488 case ESCO_LINK:
489 return h->sco_num;
490 default:
491 return 0;
492 }
493}
494
495static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
496 __u16 handle)
497{
498 struct hci_conn_hash *h = &hdev->conn_hash;
499 struct hci_conn *c;
500
501 rcu_read_lock();
502
503 list_for_each_entry_rcu(c, &h->list, list) {
504 if (c->handle == handle) {
505 rcu_read_unlock();
506 return c;
507 }
508 }
509 rcu_read_unlock();
510
511 return NULL;
512}
513
514static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
515 __u8 type, bdaddr_t *ba)
516{
517 struct hci_conn_hash *h = &hdev->conn_hash;
518 struct hci_conn *c;
519
520 rcu_read_lock();
521
522 list_for_each_entry_rcu(c, &h->list, list) {
523 if (c->type == type && !bacmp(&c->dst, ba)) {
524 rcu_read_unlock();
525 return c;
526 }
527 }
528
529 rcu_read_unlock();
530
531 return NULL;
532}
533
534static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
535 __u8 type, __u16 state)
536{
537 struct hci_conn_hash *h = &hdev->conn_hash;
538 struct hci_conn *c;
539
540 rcu_read_lock();
541
542 list_for_each_entry_rcu(c, &h->list, list) {
543 if (c->type == type && c->state == state) {
544 rcu_read_unlock();
545 return c;
546 }
547 }
548
549 rcu_read_unlock();
550
551 return NULL;
552}
553
554void hci_acl_connect(struct hci_conn *conn);
555void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
556void hci_add_sco(struct hci_conn *conn, __u16 handle);
557void hci_setup_sync(struct hci_conn *conn, __u16 handle);
558void hci_sco_setup(struct hci_conn *conn, __u8 status);
559
560struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
561int hci_conn_del(struct hci_conn *conn);
562void hci_conn_hash_flush(struct hci_dev *hdev);
563void hci_conn_check_pending(struct hci_dev *hdev);
564
565struct hci_chan *hci_chan_create(struct hci_conn *conn);
566int hci_chan_del(struct hci_chan *chan);
567void hci_chan_list_flush(struct hci_conn *conn);
568
569struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
570 __u8 sec_level, __u8 auth_type);
571int hci_conn_check_link_mode(struct hci_conn *conn);
572int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
573int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
574int hci_conn_change_link_key(struct hci_conn *conn);
575int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
576
577void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
578
579void hci_conn_hold_device(struct hci_conn *conn);
580void hci_conn_put_device(struct hci_conn *conn);
581
582static inline void hci_conn_hold(struct hci_conn *conn)
583{
584 atomic_inc(&conn->refcnt);
585 cancel_delayed_work(&conn->disc_work);
586}
587
588static inline void hci_conn_put(struct hci_conn *conn)
589{
590 if (atomic_dec_and_test(&conn->refcnt)) {
591 unsigned long timeo;
592 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
593 del_timer(&conn->idle_timer);
594 if (conn->state == BT_CONNECTED) {
595 timeo = msecs_to_jiffies(conn->disc_timeout);
596 if (!conn->out)
597 timeo *= 2;
598 } else {
599 timeo = msecs_to_jiffies(10);
600 }
601 } else {
602 timeo = msecs_to_jiffies(10);
603 }
604 cancel_delayed_work(&conn->disc_work);
605 queue_delayed_work(conn->hdev->workqueue,
606 &conn->disc_work, timeo);
607 }
608}
609
610/* ----- HCI Devices ----- */
611static inline void hci_dev_put(struct hci_dev *d)
612{
613 put_device(&d->dev);
614}
615
616static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
617{
618 get_device(&d->dev);
619 return d;
620}
621
622#define hci_dev_lock(d) mutex_lock(&d->lock)
623#define hci_dev_unlock(d) mutex_unlock(&d->lock)
624
625#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
626#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
627
628static inline void *hci_get_drvdata(struct hci_dev *hdev)
629{
630 return dev_get_drvdata(&hdev->dev);
631}
632
633static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
634{
635 dev_set_drvdata(&hdev->dev, data);
636}
637
638struct hci_dev *hci_dev_get(int index);
639struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
640
641struct hci_dev *hci_alloc_dev(void);
642void hci_free_dev(struct hci_dev *hdev);
643int hci_register_dev(struct hci_dev *hdev);
644void hci_unregister_dev(struct hci_dev *hdev);
645int hci_suspend_dev(struct hci_dev *hdev);
646int hci_resume_dev(struct hci_dev *hdev);
647int hci_dev_open(__u16 dev);
648int hci_dev_close(__u16 dev);
649int hci_dev_reset(__u16 dev);
650int hci_dev_reset_stat(__u16 dev);
651int hci_dev_cmd(unsigned int cmd, void __user *arg);
652int hci_get_dev_list(void __user *arg);
653int hci_get_dev_info(void __user *arg);
654int hci_get_conn_list(void __user *arg);
655int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
656int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
657int hci_inquiry(void __user *arg);
658
659struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
660int hci_blacklist_clear(struct hci_dev *hdev);
661int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
662int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
663
664int hci_uuids_clear(struct hci_dev *hdev);
665
666int hci_link_keys_clear(struct hci_dev *hdev);
667struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
668int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
669 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
670struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
671int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
672 int new_key, u8 authenticated, u8 tk[16],
673 u8 enc_size, u16 ediv, u8 rand[8]);
674struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
675 u8 addr_type);
676int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
677int hci_smp_ltks_clear(struct hci_dev *hdev);
678int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
679
680int hci_remote_oob_data_clear(struct hci_dev *hdev);
681struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
682 bdaddr_t *bdaddr);
683int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
684 u8 *randomizer);
685int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
686
687#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
688int hci_adv_entries_clear(struct hci_dev *hdev);
689struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
690int hci_add_adv_entry(struct hci_dev *hdev,
691 struct hci_ev_le_advertising_info *ev);
692
693void hci_del_off_timer(struct hci_dev *hdev);
694
695void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
696
697int hci_recv_frame(struct sk_buff *skb);
698int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
699int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
700
701void hci_init_sysfs(struct hci_dev *hdev);
702int hci_add_sysfs(struct hci_dev *hdev);
703void hci_del_sysfs(struct hci_dev *hdev);
704void hci_conn_init_sysfs(struct hci_conn *conn);
705void hci_conn_add_sysfs(struct hci_conn *conn);
706void hci_conn_del_sysfs(struct hci_conn *conn);
707
708#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
709
710/* ----- LMP capabilities ----- */
711#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
712#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
713#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
714#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
715#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
716#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
717#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
718#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
719#define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
720
721/* ----- Extended LMP capabilities ----- */
722#define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
723
724/* ----- HCI protocols ----- */
725static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
726 __u8 type)
727{
728 switch (type) {
729 case ACL_LINK:
730 return l2cap_connect_ind(hdev, bdaddr);
731
732 case SCO_LINK:
733 case ESCO_LINK:
734 return sco_connect_ind(hdev, bdaddr);
735
736 default:
737 BT_ERR("unknown link type %d", type);
738 return -EINVAL;
739 }
740}
741
742static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
743{
744 switch (conn->type) {
745 case ACL_LINK:
746 case LE_LINK:
747 l2cap_connect_cfm(conn, status);
748 break;
749
750 case SCO_LINK:
751 case ESCO_LINK:
752 sco_connect_cfm(conn, status);
753 break;
754
755 default:
756 BT_ERR("unknown link type %d", conn->type);
757 break;
758 }
759
760 if (conn->connect_cfm_cb)
761 conn->connect_cfm_cb(conn, status);
762}
763
764static inline int hci_proto_disconn_ind(struct hci_conn *conn)
765{
766 if (conn->type != ACL_LINK && conn->type != LE_LINK)
767 return HCI_ERROR_REMOTE_USER_TERM;
768
769 return l2cap_disconn_ind(conn);
770}
771
772static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
773{
774 switch (conn->type) {
775 case ACL_LINK:
776 case LE_LINK:
777 l2cap_disconn_cfm(conn, reason);
778 break;
779
780 case SCO_LINK:
781 case ESCO_LINK:
782 sco_disconn_cfm(conn, reason);
783 break;
784
785 default:
786 BT_ERR("unknown link type %d", conn->type);
787 break;
788 }
789
790 if (conn->disconn_cfm_cb)
791 conn->disconn_cfm_cb(conn, reason);
792}
793
794static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
795{
796 __u8 encrypt;
797
798 if (conn->type != ACL_LINK && conn->type != LE_LINK)
799 return;
800
801 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
802 return;
803
804 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
805 l2cap_security_cfm(conn, status, encrypt);
806
807 if (conn->security_cfm_cb)
808 conn->security_cfm_cb(conn, status);
809}
810
811static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
812 __u8 encrypt)
813{
814 if (conn->type != ACL_LINK && conn->type != LE_LINK)
815 return;
816
817 l2cap_security_cfm(conn, status, encrypt);
818
819 if (conn->security_cfm_cb)
820 conn->security_cfm_cb(conn, status);
821}
822
823/* ----- HCI callbacks ----- */
824struct hci_cb {
825 struct list_head list;
826
827 char *name;
828
829 void (*security_cfm) (struct hci_conn *conn, __u8 status,
830 __u8 encrypt);
831 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
832 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
833};
834
835static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
836{
837 struct list_head *p;
838 __u8 encrypt;
839
840 hci_proto_auth_cfm(conn, status);
841
842 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
843 return;
844
845 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
846
847 read_lock(&hci_cb_list_lock);
848 list_for_each(p, &hci_cb_list) {
849 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
850 if (cb->security_cfm)
851 cb->security_cfm(conn, status, encrypt);
852 }
853 read_unlock(&hci_cb_list_lock);
854}
855
856static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
857 __u8 encrypt)
858{
859 struct list_head *p;
860
861 if (conn->sec_level == BT_SECURITY_SDP)
862 conn->sec_level = BT_SECURITY_LOW;
863
864 if (conn->pending_sec_level > conn->sec_level)
865 conn->sec_level = conn->pending_sec_level;
866
867 hci_proto_encrypt_cfm(conn, status, encrypt);
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->security_cfm)
873 cb->security_cfm(conn, status, encrypt);
874 }
875 read_unlock(&hci_cb_list_lock);
876}
877
878static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
879{
880 struct list_head *p;
881
882 read_lock(&hci_cb_list_lock);
883 list_for_each(p, &hci_cb_list) {
884 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
885 if (cb->key_change_cfm)
886 cb->key_change_cfm(conn, status);
887 }
888 read_unlock(&hci_cb_list_lock);
889}
890
891static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
892 __u8 role)
893{
894 struct list_head *p;
895
896 read_lock(&hci_cb_list_lock);
897 list_for_each(p, &hci_cb_list) {
898 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
899 if (cb->role_switch_cfm)
900 cb->role_switch_cfm(conn, status, role);
901 }
902 read_unlock(&hci_cb_list_lock);
903}
904
905static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
906{
907 u8 field_len;
908 size_t parsed;
909
910 for (parsed = 0; parsed < data_len - 1; parsed += field_len) {
911 field_len = data[0];
912
913 if (field_len == 0)
914 break;
915
916 parsed += field_len + 1;
917
918 if (parsed > data_len)
919 break;
920
921 if (data[1] == type)
922 return true;
923
924 data += field_len + 1;
925 }
926
927 return false;
928}
929
930static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
931 u8 data_len)
932{
933 eir[eir_len++] = sizeof(type) + data_len;
934 eir[eir_len++] = type;
935 memcpy(&eir[eir_len], data, data_len);
936 eir_len += data_len;
937
938 return eir_len;
939}
940
941int hci_register_cb(struct hci_cb *hcb);
942int hci_unregister_cb(struct hci_cb *hcb);
943
944int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
945void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
946void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
947
948void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
949
950/* ----- HCI Sockets ----- */
951void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
952void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
953void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
954
955void hci_sock_dev_event(struct hci_dev *hdev, int event);
956
957/* Management interface */
958#define MGMT_ADDR_BREDR 0x00
959#define MGMT_ADDR_LE_PUBLIC 0x01
960#define MGMT_ADDR_LE_RANDOM 0x02
961#define MGMT_ADDR_INVALID 0xff
962
963#define DISCOV_TYPE_BREDR (BIT(MGMT_ADDR_BREDR))
964#define DISCOV_TYPE_LE (BIT(MGMT_ADDR_LE_PUBLIC) | \
965 BIT(MGMT_ADDR_LE_RANDOM))
966#define DISCOV_TYPE_INTERLEAVED (BIT(MGMT_ADDR_BREDR) | \
967 BIT(MGMT_ADDR_LE_PUBLIC) | \
968 BIT(MGMT_ADDR_LE_RANDOM))
969
970int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
971int mgmt_index_added(struct hci_dev *hdev);
972int mgmt_index_removed(struct hci_dev *hdev);
973int mgmt_powered(struct hci_dev *hdev, u8 powered);
974int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
975int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
976int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
977int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
978 u8 persistent);
979int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
980 u8 addr_type, u8 *name, u8 name_len,
981 u8 *dev_class);
982int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
983 u8 link_type, u8 addr_type);
984int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
985 u8 link_type, u8 addr_type, u8 status);
986int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
987 u8 addr_type, u8 status);
988int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
989int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
990 u8 status);
991int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
992 u8 status);
993int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
994 u8 link_type, u8 addr_type, __le32 value,
995 u8 confirm_hint);
996int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
997 u8 link_type, u8 addr_type, u8 status);
998int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
999 u8 link_type, u8 addr_type, u8 status);
1000int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1001 u8 link_type, u8 addr_type);
1002int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1003 u8 link_type, u8 addr_type, u8 status);
1004int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1005 u8 link_type, u8 addr_type, u8 status);
1006int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1007 u8 addr_type, u8 status);
1008int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1009int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 status);
1010int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1011int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1012 u8 *randomizer, u8 status);
1013int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1014 u8 addr_type, u8 *dev_class, s8 rssi,
1015 u8 cfm_name, u8 *eir, u16 eir_len);
1016int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1017 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1018int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1019int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1020int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1021int mgmt_interleaved_discovery(struct hci_dev *hdev);
1022int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1023int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1024
1025int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1026
1027/* HCI info for socket */
1028#define hci_pi(sk) ((struct hci_pinfo *) sk)
1029
1030/* HCI socket flags */
1031#define HCI_PI_MGMT_INIT 0
1032
1033struct hci_pinfo {
1034 struct bt_sock bt;
1035 struct hci_dev *hdev;
1036 struct hci_filter filter;
1037 __u32 cmsg_mask;
1038 unsigned short channel;
1039 unsigned long flags;
1040};
1041
1042/* HCI security filter */
1043#define HCI_SFLT_MAX_OGF 5
1044
1045struct hci_sec_filter {
1046 __u32 type_mask;
1047 __u32 event_mask[2];
1048 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1049};
1050
1051/* ----- HCI requests ----- */
1052#define HCI_REQ_DONE 0
1053#define HCI_REQ_PEND 1
1054#define HCI_REQ_CANCELED 2
1055
1056#define hci_req_lock(d) mutex_lock(&d->req_lock)
1057#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1058
1059void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
1060
1061void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1062 u16 latency, u16 to_multiplier);
1063void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1064 __u8 ltk[16]);
1065void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
1066void hci_le_ltk_neg_reply(struct hci_conn *conn);
1067
1068int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1069int hci_cancel_inquiry(struct hci_dev *hdev);
1070int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1071 int timeout);
1072
1073#endif /* __HCI_CORE_H */
kernel source for telekom puls (alcatel/mediatek)