tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_CORE_H
26#define __HCI_CORE_H
27
28#include <linux/interrupt.h>
29#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
35/* HCI Core structures */
36struct inquiry_data {
37 bdaddr_t bdaddr;
38 __u8 pscan_rep_mode;
39 __u8 pscan_period_mode;
40 __u8 pscan_mode;
41 __u8 dev_class[3];
42 __le16 clock_offset;
43 __s8 rssi;
44 __u8 ssp_mode;
45};
46
47struct inquiry_entry {
48 struct inquiry_entry *next;
49 __u32 timestamp;
50 struct inquiry_data data;
51};
52
53struct inquiry_cache {
54 spinlock_t lock;
55 __u32 timestamp;
56 struct inquiry_entry *list;
57};
58
59struct hci_conn_hash {
60 struct list_head list;
61 spinlock_t lock;
62 unsigned int acl_num;
63 unsigned int sco_num;
64 unsigned int le_num;
65};
66
67struct bdaddr_list {
68 struct list_head list;
69 bdaddr_t bdaddr;
70};
71
72struct bt_uuid {
73 struct list_head list;
74 u8 uuid[16];
75 u8 svc_hint;
76};
77
78struct key_master_id {
79 __le16 ediv;
80 u8 rand[8];
81} __packed;
82
83struct link_key_data {
84 bdaddr_t bdaddr;
85 u8 type;
86 u8 val[16];
87 u8 pin_len;
88 u8 dlen;
89 u8 data[0];
90} __packed;
91
92struct link_key {
93 struct list_head list;
94 bdaddr_t bdaddr;
95 u8 type;
96 u8 val[16];
97 u8 pin_len;
98 u8 dlen;
99 u8 data[0];
100};
101
102struct oob_data {
103 struct list_head list;
104 bdaddr_t bdaddr;
105 u8 hash[16];
106 u8 randomizer[16];
107};
108
109struct adv_entry {
110 struct list_head list;
111 bdaddr_t bdaddr;
112 u8 bdaddr_type;
113};
114
115#define NUM_REASSEMBLY 4
116struct hci_dev {
117 struct list_head list;
118 spinlock_t lock;
119 atomic_t refcnt;
120
121 char name[8];
122 unsigned long flags;
123 __u16 id;
124 __u8 bus;
125 __u8 dev_type;
126 bdaddr_t bdaddr;
127 __u8 dev_name[HCI_MAX_NAME_LENGTH];
128 __u8 eir[HCI_MAX_EIR_LENGTH];
129 __u8 dev_class[3];
130 __u8 major_class;
131 __u8 minor_class;
132 __u8 features[8];
133 __u8 extfeatures[8];
134 __u8 commands[64];
135 __u8 ssp_mode;
136 __u8 hci_ver;
137 __u16 hci_rev;
138 __u8 lmp_ver;
139 __u16 manufacturer;
140 __le16 lmp_subver;
141 __u16 voice_setting;
142 __u8 io_capability;
143
144 __u16 pkt_type;
145 __u16 esco_type;
146 __u16 link_policy;
147 __u16 link_mode;
148
149 __u32 idle_timeout;
150 __u16 sniff_min_interval;
151 __u16 sniff_max_interval;
152
153 unsigned int auto_accept_delay;
154
155 unsigned long quirks;
156
157 atomic_t cmd_cnt;
158 unsigned int acl_cnt;
159 unsigned int sco_cnt;
160 unsigned int le_cnt;
161
162 unsigned int acl_mtu;
163 unsigned int sco_mtu;
164 unsigned int le_mtu;
165 unsigned int acl_pkts;
166 unsigned int sco_pkts;
167 unsigned int le_pkts;
168
169 unsigned long acl_last_tx;
170 unsigned long sco_last_tx;
171 unsigned long le_last_tx;
172
173 struct workqueue_struct *workqueue;
174
175 struct work_struct power_on;
176 struct work_struct power_off;
177 struct timer_list off_timer;
178
179 struct timer_list cmd_timer;
180 struct tasklet_struct cmd_task;
181 struct tasklet_struct rx_task;
182 struct tasklet_struct tx_task;
183
184 struct sk_buff_head rx_q;
185 struct sk_buff_head raw_q;
186 struct sk_buff_head cmd_q;
187
188 struct sk_buff *sent_cmd;
189 struct sk_buff *reassembly[NUM_REASSEMBLY];
190
191 struct mutex req_lock;
192 wait_queue_head_t req_wait_q;
193 __u32 req_status;
194 __u32 req_result;
195
196 __u16 init_last_cmd;
197
198 struct inquiry_cache inq_cache;
199 struct hci_conn_hash conn_hash;
200 struct list_head blacklist;
201
202 struct list_head uuids;
203
204 struct list_head link_keys;
205
206 struct list_head remote_oob_data;
207
208 struct list_head adv_entries;
209 struct timer_list adv_timer;
210
211 struct hci_dev_stats stat;
212
213 struct sk_buff_head driver_init;
214
215 void *driver_data;
216 void *core_data;
217
218 atomic_t promisc;
219
220 struct dentry *debugfs;
221
222 struct device *parent;
223 struct device dev;
224
225 struct rfkill *rfkill;
226
227 struct module *owner;
228
229 int (*open)(struct hci_dev *hdev);
230 int (*close)(struct hci_dev *hdev);
231 int (*flush)(struct hci_dev *hdev);
232 int (*send)(struct sk_buff *skb);
233 void (*destruct)(struct hci_dev *hdev);
234 void (*notify)(struct hci_dev *hdev, unsigned int evt);
235 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
236};
237
238struct hci_conn {
239 struct list_head list;
240
241 atomic_t refcnt;
242
243 bdaddr_t dst;
244 __u8 dst_type;
245 __u16 handle;
246 __u16 state;
247 __u8 mode;
248 __u8 type;
249 __u8 out;
250 __u8 attempt;
251 __u8 dev_class[3];
252 __u8 features[8];
253 __u8 ssp_mode;
254 __u16 interval;
255 __u16 pkt_type;
256 __u16 link_policy;
257 __u32 link_mode;
258 __u8 key_type;
259 __u8 auth_type;
260 __u8 sec_level;
261 __u8 pending_sec_level;
262 __u8 pin_length;
263 __u8 enc_key_size;
264 __u8 io_capability;
265 __u8 power_save;
266 __u16 disc_timeout;
267 unsigned long pend;
268
269 __u8 remote_cap;
270 __u8 remote_oob;
271 __u8 remote_auth;
272
273 unsigned int sent;
274
275 struct sk_buff_head data_q;
276
277 struct timer_list disc_timer;
278 struct timer_list idle_timer;
279 struct timer_list auto_accept_timer;
280
281 struct work_struct work_add;
282 struct work_struct work_del;
283
284 struct device dev;
285 atomic_t devref;
286
287 struct hci_dev *hdev;
288 void *l2cap_data;
289 void *sco_data;
290
291 struct hci_conn *link;
292
293 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
294 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
295 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
296};
297
298extern struct hci_proto *hci_proto[];
299extern struct list_head hci_dev_list;
300extern struct list_head hci_cb_list;
301extern rwlock_t hci_dev_list_lock;
302extern rwlock_t hci_cb_list_lock;
303
304/* ----- Inquiry cache ----- */
305#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
306#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
307
308#define inquiry_cache_lock(c) spin_lock(&c->lock)
309#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
310#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
311#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
312
313static inline void inquiry_cache_init(struct hci_dev *hdev)
314{
315 struct inquiry_cache *c = &hdev->inq_cache;
316 spin_lock_init(&c->lock);
317 c->list = NULL;
318}
319
320static inline int inquiry_cache_empty(struct hci_dev *hdev)
321{
322 struct inquiry_cache *c = &hdev->inq_cache;
323 return c->list == NULL;
324}
325
326static inline long inquiry_cache_age(struct hci_dev *hdev)
327{
328 struct inquiry_cache *c = &hdev->inq_cache;
329 return jiffies - c->timestamp;
330}
331
332static inline long inquiry_entry_age(struct inquiry_entry *e)
333{
334 return jiffies - e->timestamp;
335}
336
337struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
338 bdaddr_t *bdaddr);
339void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
340
341/* ----- HCI Connections ----- */
342enum {
343 HCI_CONN_AUTH_PEND,
344 HCI_CONN_REAUTH_PEND,
345 HCI_CONN_ENCRYPT_PEND,
346 HCI_CONN_RSWITCH_PEND,
347 HCI_CONN_MODE_CHANGE_PEND,
348 HCI_CONN_SCO_SETUP_PEND,
349 HCI_CONN_LE_SMP_PEND,
350};
351
352static inline void hci_conn_hash_init(struct hci_dev *hdev)
353{
354 struct hci_conn_hash *h = &hdev->conn_hash;
355 INIT_LIST_HEAD(&h->list);
356 spin_lock_init(&h->lock);
357 h->acl_num = 0;
358 h->sco_num = 0;
359}
360
361static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
362{
363 struct hci_conn_hash *h = &hdev->conn_hash;
364 list_add(&c->list, &h->list);
365 switch (c->type) {
366 case ACL_LINK:
367 h->acl_num++;
368 break;
369 case LE_LINK:
370 h->le_num++;
371 break;
372 case SCO_LINK:
373 case ESCO_LINK:
374 h->sco_num++;
375 break;
376 }
377}
378
379static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
380{
381 struct hci_conn_hash *h = &hdev->conn_hash;
382 list_del(&c->list);
383 switch (c->type) {
384 case ACL_LINK:
385 h->acl_num--;
386 break;
387 case LE_LINK:
388 h->le_num--;
389 break;
390 case SCO_LINK:
391 case ESCO_LINK:
392 h->sco_num--;
393 break;
394 }
395}
396
397static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
398{
399 struct hci_conn_hash *h = &hdev->conn_hash;
400 switch (type) {
401 case ACL_LINK:
402 return h->acl_num;
403 case LE_LINK:
404 return h->le_num;
405 case SCO_LINK:
406 case ESCO_LINK:
407 return h->sco_num;
408 default:
409 return 0;
410 }
411}
412
413static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
414 __u16 handle)
415{
416 struct hci_conn_hash *h = &hdev->conn_hash;
417 struct list_head *p;
418 struct hci_conn *c;
419
420 list_for_each(p, &h->list) {
421 c = list_entry(p, struct hci_conn, list);
422 if (c->handle == handle)
423 return c;
424 }
425 return NULL;
426}
427
428static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
429 __u8 type, bdaddr_t *ba)
430{
431 struct hci_conn_hash *h = &hdev->conn_hash;
432 struct list_head *p;
433 struct hci_conn *c;
434
435 list_for_each(p, &h->list) {
436 c = list_entry(p, struct hci_conn, list);
437 if (c->type == type && !bacmp(&c->dst, ba))
438 return c;
439 }
440 return NULL;
441}
442
443static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
444 __u8 type, __u16 state)
445{
446 struct hci_conn_hash *h = &hdev->conn_hash;
447 struct list_head *p;
448 struct hci_conn *c;
449
450 list_for_each(p, &h->list) {
451 c = list_entry(p, struct hci_conn, list);
452 if (c->type == type && c->state == state)
453 return c;
454 }
455 return NULL;
456}
457
458void hci_acl_connect(struct hci_conn *conn);
459void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
460void hci_add_sco(struct hci_conn *conn, __u16 handle);
461void hci_setup_sync(struct hci_conn *conn, __u16 handle);
462void hci_sco_setup(struct hci_conn *conn, __u8 status);
463
464struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
465int hci_conn_del(struct hci_conn *conn);
466void hci_conn_hash_flush(struct hci_dev *hdev);
467void hci_conn_check_pending(struct hci_dev *hdev);
468
469struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
470 __u8 sec_level, __u8 auth_type);
471int hci_conn_check_link_mode(struct hci_conn *conn);
472int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
473int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
474int hci_conn_change_link_key(struct hci_conn *conn);
475int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
476
477void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
478void hci_conn_enter_sniff_mode(struct hci_conn *conn);
479
480void hci_conn_hold_device(struct hci_conn *conn);
481void hci_conn_put_device(struct hci_conn *conn);
482
483static inline void hci_conn_hold(struct hci_conn *conn)
484{
485 atomic_inc(&conn->refcnt);
486 del_timer(&conn->disc_timer);
487}
488
489static inline void hci_conn_put(struct hci_conn *conn)
490{
491 if (atomic_dec_and_test(&conn->refcnt)) {
492 unsigned long timeo;
493 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
494 del_timer(&conn->idle_timer);
495 if (conn->state == BT_CONNECTED) {
496 timeo = msecs_to_jiffies(conn->disc_timeout);
497 if (!conn->out)
498 timeo *= 2;
499 } else {
500 timeo = msecs_to_jiffies(10);
501 }
502 } else {
503 timeo = msecs_to_jiffies(10);
504 }
505 mod_timer(&conn->disc_timer, jiffies + timeo);
506 }
507}
508
509/* ----- HCI Devices ----- */
510static inline void __hci_dev_put(struct hci_dev *d)
511{
512 if (atomic_dec_and_test(&d->refcnt))
513 d->destruct(d);
514}
515
516/*
517 * hci_dev_put and hci_dev_hold are macros to avoid dragging all the
518 * overhead of all the modular infrastructure into this header.
519 */
520#define hci_dev_put(d) \
521do { \
522 __hci_dev_put(d); \
523 module_put(d->owner); \
524} while (0)
525
526static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
527{
528 atomic_inc(&d->refcnt);
529 return d;
530}
531
532#define hci_dev_hold(d) \
533({ \
534 try_module_get(d->owner) ? __hci_dev_hold(d) : NULL; \
535})
536
537#define hci_dev_lock(d) spin_lock(&d->lock)
538#define hci_dev_unlock(d) spin_unlock(&d->lock)
539#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
540#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
541
542struct hci_dev *hci_dev_get(int index);
543struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
544
545struct hci_dev *hci_alloc_dev(void);
546void hci_free_dev(struct hci_dev *hdev);
547int hci_register_dev(struct hci_dev *hdev);
548int hci_unregister_dev(struct hci_dev *hdev);
549int hci_suspend_dev(struct hci_dev *hdev);
550int hci_resume_dev(struct hci_dev *hdev);
551int hci_dev_open(__u16 dev);
552int hci_dev_close(__u16 dev);
553int hci_dev_reset(__u16 dev);
554int hci_dev_reset_stat(__u16 dev);
555int hci_dev_cmd(unsigned int cmd, void __user *arg);
556int hci_get_dev_list(void __user *arg);
557int hci_get_dev_info(void __user *arg);
558int hci_get_conn_list(void __user *arg);
559int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
560int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
561int hci_inquiry(void __user *arg);
562
563struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
564int hci_blacklist_clear(struct hci_dev *hdev);
565int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
566int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
567
568int hci_uuids_clear(struct hci_dev *hdev);
569
570int hci_link_keys_clear(struct hci_dev *hdev);
571struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
572int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
573 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
574struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
575struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
576 bdaddr_t *bdaddr, u8 type);
577int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
578 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
579int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
580
581int hci_remote_oob_data_clear(struct hci_dev *hdev);
582struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
583 bdaddr_t *bdaddr);
584int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
585 u8 *randomizer);
586int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
587
588#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
589int hci_adv_entries_clear(struct hci_dev *hdev);
590struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
591int hci_add_adv_entry(struct hci_dev *hdev,
592 struct hci_ev_le_advertising_info *ev);
593
594void hci_del_off_timer(struct hci_dev *hdev);
595
596void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
597
598int hci_recv_frame(struct sk_buff *skb);
599int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
600int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
601
602int hci_register_sysfs(struct hci_dev *hdev);
603void hci_unregister_sysfs(struct hci_dev *hdev);
604void hci_conn_init_sysfs(struct hci_conn *conn);
605void hci_conn_add_sysfs(struct hci_conn *conn);
606void hci_conn_del_sysfs(struct hci_conn *conn);
607
608#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
609
610/* ----- LMP capabilities ----- */
611#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
612#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
613#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
614#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
615#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
616#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
617#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
618#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
619
620/* ----- Extended LMP capabilities ----- */
621#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
622
623/* ----- HCI protocols ----- */
624struct hci_proto {
625 char *name;
626 unsigned int id;
627 unsigned long flags;
628
629 void *priv;
630
631 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
632 __u8 type);
633 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
634 int (*disconn_ind) (struct hci_conn *conn);
635 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
636 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
637 __u16 flags);
638 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
639 int (*security_cfm) (struct hci_conn *conn, __u8 status,
640 __u8 encrypt);
641};
642
643static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
644 __u8 type)
645{
646 register struct hci_proto *hp;
647 int mask = 0;
648
649 hp = hci_proto[HCI_PROTO_L2CAP];
650 if (hp && hp->connect_ind)
651 mask |= hp->connect_ind(hdev, bdaddr, type);
652
653 hp = hci_proto[HCI_PROTO_SCO];
654 if (hp && hp->connect_ind)
655 mask |= hp->connect_ind(hdev, bdaddr, type);
656
657 return mask;
658}
659
660static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
661{
662 register struct hci_proto *hp;
663
664 hp = hci_proto[HCI_PROTO_L2CAP];
665 if (hp && hp->connect_cfm)
666 hp->connect_cfm(conn, status);
667
668 hp = hci_proto[HCI_PROTO_SCO];
669 if (hp && hp->connect_cfm)
670 hp->connect_cfm(conn, status);
671
672 if (conn->connect_cfm_cb)
673 conn->connect_cfm_cb(conn, status);
674}
675
676static inline int hci_proto_disconn_ind(struct hci_conn *conn)
677{
678 register struct hci_proto *hp;
679 int reason = 0x13;
680
681 hp = hci_proto[HCI_PROTO_L2CAP];
682 if (hp && hp->disconn_ind)
683 reason = hp->disconn_ind(conn);
684
685 hp = hci_proto[HCI_PROTO_SCO];
686 if (hp && hp->disconn_ind)
687 reason = hp->disconn_ind(conn);
688
689 return reason;
690}
691
692static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
693{
694 register struct hci_proto *hp;
695
696 hp = hci_proto[HCI_PROTO_L2CAP];
697 if (hp && hp->disconn_cfm)
698 hp->disconn_cfm(conn, reason);
699
700 hp = hci_proto[HCI_PROTO_SCO];
701 if (hp && hp->disconn_cfm)
702 hp->disconn_cfm(conn, reason);
703
704 if (conn->disconn_cfm_cb)
705 conn->disconn_cfm_cb(conn, reason);
706}
707
708static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
709{
710 register struct hci_proto *hp;
711 __u8 encrypt;
712
713 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
714 return;
715
716 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
717
718 hp = hci_proto[HCI_PROTO_L2CAP];
719 if (hp && hp->security_cfm)
720 hp->security_cfm(conn, status, encrypt);
721
722 hp = hci_proto[HCI_PROTO_SCO];
723 if (hp && hp->security_cfm)
724 hp->security_cfm(conn, status, encrypt);
725
726 if (conn->security_cfm_cb)
727 conn->security_cfm_cb(conn, status);
728}
729
730static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
731 __u8 encrypt)
732{
733 register struct hci_proto *hp;
734
735 hp = hci_proto[HCI_PROTO_L2CAP];
736 if (hp && hp->security_cfm)
737 hp->security_cfm(conn, status, encrypt);
738
739 hp = hci_proto[HCI_PROTO_SCO];
740 if (hp && hp->security_cfm)
741 hp->security_cfm(conn, status, encrypt);
742
743 if (conn->security_cfm_cb)
744 conn->security_cfm_cb(conn, status);
745}
746
747int hci_register_proto(struct hci_proto *hproto);
748int hci_unregister_proto(struct hci_proto *hproto);
749
750/* ----- HCI callbacks ----- */
751struct hci_cb {
752 struct list_head list;
753
754 char *name;
755
756 void (*security_cfm) (struct hci_conn *conn, __u8 status,
757 __u8 encrypt);
758 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
759 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
760};
761
762static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
763{
764 struct list_head *p;
765 __u8 encrypt;
766
767 hci_proto_auth_cfm(conn, status);
768
769 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
770 return;
771
772 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
773
774 read_lock_bh(&hci_cb_list_lock);
775 list_for_each(p, &hci_cb_list) {
776 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
777 if (cb->security_cfm)
778 cb->security_cfm(conn, status, encrypt);
779 }
780 read_unlock_bh(&hci_cb_list_lock);
781}
782
783static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
784 __u8 encrypt)
785{
786 struct list_head *p;
787
788 if (conn->sec_level == BT_SECURITY_SDP)
789 conn->sec_level = BT_SECURITY_LOW;
790
791 if (conn->pending_sec_level > conn->sec_level)
792 conn->sec_level = conn->pending_sec_level;
793
794 hci_proto_encrypt_cfm(conn, status, encrypt);
795
796 read_lock_bh(&hci_cb_list_lock);
797 list_for_each(p, &hci_cb_list) {
798 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
799 if (cb->security_cfm)
800 cb->security_cfm(conn, status, encrypt);
801 }
802 read_unlock_bh(&hci_cb_list_lock);
803}
804
805static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
806{
807 struct list_head *p;
808
809 read_lock_bh(&hci_cb_list_lock);
810 list_for_each(p, &hci_cb_list) {
811 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
812 if (cb->key_change_cfm)
813 cb->key_change_cfm(conn, status);
814 }
815 read_unlock_bh(&hci_cb_list_lock);
816}
817
818static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
819 __u8 role)
820{
821 struct list_head *p;
822
823 read_lock_bh(&hci_cb_list_lock);
824 list_for_each(p, &hci_cb_list) {
825 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
826 if (cb->role_switch_cfm)
827 cb->role_switch_cfm(conn, status, role);
828 }
829 read_unlock_bh(&hci_cb_list_lock);
830}
831
832int hci_register_cb(struct hci_cb *hcb);
833int hci_unregister_cb(struct hci_cb *hcb);
834
835int hci_register_notifier(struct notifier_block *nb);
836int hci_unregister_notifier(struct notifier_block *nb);
837
838int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
839void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
840void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
841
842void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
843
844void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
845
846/* ----- HCI Sockets ----- */
847void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
848 struct sock *skip_sk);
849
850/* Management interface */
851int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
852int mgmt_index_added(u16 index);
853int mgmt_index_removed(u16 index);
854int mgmt_powered(u16 index, u8 powered);
855int mgmt_discoverable(u16 index, u8 discoverable);
856int mgmt_connectable(u16 index, u8 connectable);
857int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
858int mgmt_connected(u16 index, bdaddr_t *bdaddr, u8 link_type);
859int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
860int mgmt_disconnect_failed(u16 index);
861int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
862int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
863int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
864int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
865int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
866 u8 confirm_hint);
867int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
868int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
869 u8 status);
870int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
871int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
872int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
873 u8 status);
874int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
875 u8 *eir);
876int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
877int mgmt_discovering(u16 index, u8 discovering);
878int mgmt_device_blocked(u16 index, bdaddr_t *bdaddr);
879int mgmt_device_unblocked(u16 index, bdaddr_t *bdaddr);
880
881/* HCI info for socket */
882#define hci_pi(sk) ((struct hci_pinfo *) sk)
883
884struct hci_pinfo {
885 struct bt_sock bt;
886 struct hci_dev *hdev;
887 struct hci_filter filter;
888 __u32 cmsg_mask;
889 unsigned short channel;
890};
891
892/* HCI security filter */
893#define HCI_SFLT_MAX_OGF 5
894
895struct hci_sec_filter {
896 __u32 type_mask;
897 __u32 event_mask[2];
898 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
899};
900
901/* ----- HCI requests ----- */
902#define HCI_REQ_DONE 0
903#define HCI_REQ_PEND 1
904#define HCI_REQ_CANCELED 2
905
906#define hci_req_lock(d) mutex_lock(&d->req_lock)
907#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
908
909void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
910
911void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
912 u16 latency, u16 to_multiplier);
913void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
914 __u8 ltk[16]);
915void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
916void hci_le_ltk_neg_reply(struct hci_conn *conn);
917
918#endif /* __HCI_CORE_H */