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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 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 crypto_blkcipher *tfm;
199
200 struct inquiry_cache inq_cache;
201 struct hci_conn_hash conn_hash;
202 struct list_head blacklist;
203
204 struct list_head uuids;
205
206 struct list_head link_keys;
207
208 struct list_head remote_oob_data;
209
210 struct list_head adv_entries;
211 struct timer_list adv_timer;
212
213 struct hci_dev_stats stat;
214
215 struct sk_buff_head driver_init;
216
217 void *driver_data;
218 void *core_data;
219
220 atomic_t promisc;
221
222 struct dentry *debugfs;
223
224 struct device *parent;
225 struct device dev;
226
227 struct rfkill *rfkill;
228
229 struct module *owner;
230
231 int (*open)(struct hci_dev *hdev);
232 int (*close)(struct hci_dev *hdev);
233 int (*flush)(struct hci_dev *hdev);
234 int (*send)(struct sk_buff *skb);
235 void (*destruct)(struct hci_dev *hdev);
236 void (*notify)(struct hci_dev *hdev, unsigned int evt);
237 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
238};
239
240struct hci_conn {
241 struct list_head list;
242
243 atomic_t refcnt;
244
245 bdaddr_t dst;
246 __u8 dst_type;
247 __u16 handle;
248 __u16 state;
249 __u8 mode;
250 __u8 type;
251 __u8 out;
252 __u8 attempt;
253 __u8 dev_class[3];
254 __u8 features[8];
255 __u8 ssp_mode;
256 __u16 interval;
257 __u16 pkt_type;
258 __u16 link_policy;
259 __u32 link_mode;
260 __u8 key_type;
261 __u8 auth_type;
262 __u8 sec_level;
263 __u8 pending_sec_level;
264 __u8 pin_length;
265 __u8 enc_key_size;
266 __u8 io_capability;
267 __u8 power_save;
268 __u16 disc_timeout;
269 unsigned long pend;
270
271 __u8 remote_cap;
272 __u8 remote_oob;
273 __u8 remote_auth;
274
275 unsigned int sent;
276
277 struct sk_buff_head data_q;
278
279 struct timer_list disc_timer;
280 struct timer_list idle_timer;
281 struct timer_list auto_accept_timer;
282
283 struct work_struct work_add;
284 struct work_struct work_del;
285
286 struct device dev;
287 atomic_t devref;
288
289 struct hci_dev *hdev;
290 void *l2cap_data;
291 void *sco_data;
292
293 struct hci_conn *link;
294
295 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
296 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
297 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
298};
299
300extern struct hci_proto *hci_proto[];
301extern struct list_head hci_dev_list;
302extern struct list_head hci_cb_list;
303extern rwlock_t hci_dev_list_lock;
304extern rwlock_t hci_cb_list_lock;
305
306/* ----- Inquiry cache ----- */
307#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
308#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
309
310#define inquiry_cache_lock(c) spin_lock(&c->lock)
311#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
312#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
313#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
314
315static inline void inquiry_cache_init(struct hci_dev *hdev)
316{
317 struct inquiry_cache *c = &hdev->inq_cache;
318 spin_lock_init(&c->lock);
319 c->list = NULL;
320}
321
322static inline int inquiry_cache_empty(struct hci_dev *hdev)
323{
324 struct inquiry_cache *c = &hdev->inq_cache;
325 return c->list == NULL;
326}
327
328static inline long inquiry_cache_age(struct hci_dev *hdev)
329{
330 struct inquiry_cache *c = &hdev->inq_cache;
331 return jiffies - c->timestamp;
332}
333
334static inline long inquiry_entry_age(struct inquiry_entry *e)
335{
336 return jiffies - e->timestamp;
337}
338
339struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
340 bdaddr_t *bdaddr);
341void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
342
343/* ----- HCI Connections ----- */
344enum {
345 HCI_CONN_AUTH_PEND,
346 HCI_CONN_REAUTH_PEND,
347 HCI_CONN_ENCRYPT_PEND,
348 HCI_CONN_RSWITCH_PEND,
349 HCI_CONN_MODE_CHANGE_PEND,
350 HCI_CONN_SCO_SETUP_PEND,
351};
352
353static inline void hci_conn_hash_init(struct hci_dev *hdev)
354{
355 struct hci_conn_hash *h = &hdev->conn_hash;
356 INIT_LIST_HEAD(&h->list);
357 spin_lock_init(&h->lock);
358 h->acl_num = 0;
359 h->sco_num = 0;
360}
361
362static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
363{
364 struct hci_conn_hash *h = &hdev->conn_hash;
365 list_add(&c->list, &h->list);
366 switch (c->type) {
367 case ACL_LINK:
368 h->acl_num++;
369 break;
370 case LE_LINK:
371 h->le_num++;
372 break;
373 case SCO_LINK:
374 case ESCO_LINK:
375 h->sco_num++;
376 break;
377 }
378}
379
380static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
381{
382 struct hci_conn_hash *h = &hdev->conn_hash;
383 list_del(&c->list);
384 switch (c->type) {
385 case ACL_LINK:
386 h->acl_num--;
387 break;
388 case LE_LINK:
389 h->le_num--;
390 break;
391 case SCO_LINK:
392 case ESCO_LINK:
393 h->sco_num--;
394 break;
395 }
396}
397
398static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
399 __u16 handle)
400{
401 struct hci_conn_hash *h = &hdev->conn_hash;
402 struct list_head *p;
403 struct hci_conn *c;
404
405 list_for_each(p, &h->list) {
406 c = list_entry(p, struct hci_conn, list);
407 if (c->handle == handle)
408 return c;
409 }
410 return NULL;
411}
412
413static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
414 __u8 type, bdaddr_t *ba)
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->type == type && !bacmp(&c->dst, ba))
423 return c;
424 }
425 return NULL;
426}
427
428static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
429 __u8 type, __u16 state)
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 && c->state == state)
438 return c;
439 }
440 return NULL;
441}
442
443void hci_acl_connect(struct hci_conn *conn);
444void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
445void hci_add_sco(struct hci_conn *conn, __u16 handle);
446void hci_setup_sync(struct hci_conn *conn, __u16 handle);
447void hci_sco_setup(struct hci_conn *conn, __u8 status);
448
449struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
450int hci_conn_del(struct hci_conn *conn);
451void hci_conn_hash_flush(struct hci_dev *hdev);
452void hci_conn_check_pending(struct hci_dev *hdev);
453
454struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
455 __u8 sec_level, __u8 auth_type);
456int hci_conn_check_link_mode(struct hci_conn *conn);
457int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
458int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
459int hci_conn_change_link_key(struct hci_conn *conn);
460int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
461
462void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
463void hci_conn_enter_sniff_mode(struct hci_conn *conn);
464
465void hci_conn_hold_device(struct hci_conn *conn);
466void hci_conn_put_device(struct hci_conn *conn);
467
468static inline void hci_conn_hold(struct hci_conn *conn)
469{
470 atomic_inc(&conn->refcnt);
471 del_timer(&conn->disc_timer);
472}
473
474static inline void hci_conn_put(struct hci_conn *conn)
475{
476 if (atomic_dec_and_test(&conn->refcnt)) {
477 unsigned long timeo;
478 if (conn->type == ACL_LINK) {
479 del_timer(&conn->idle_timer);
480 if (conn->state == BT_CONNECTED) {
481 timeo = msecs_to_jiffies(conn->disc_timeout);
482 if (!conn->out)
483 timeo *= 2;
484 } else {
485 timeo = msecs_to_jiffies(10);
486 }
487 } else {
488 timeo = msecs_to_jiffies(10);
489 }
490 mod_timer(&conn->disc_timer, jiffies + timeo);
491 }
492}
493
494/* ----- HCI Devices ----- */
495static inline void __hci_dev_put(struct hci_dev *d)
496{
497 if (atomic_dec_and_test(&d->refcnt))
498 d->destruct(d);
499}
500
501static inline void hci_dev_put(struct hci_dev *d)
502{
503 __hci_dev_put(d);
504 module_put(d->owner);
505}
506
507static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
508{
509 atomic_inc(&d->refcnt);
510 return d;
511}
512
513static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
514{
515 if (try_module_get(d->owner))
516 return __hci_dev_hold(d);
517 return NULL;
518}
519
520#define hci_dev_lock(d) spin_lock(&d->lock)
521#define hci_dev_unlock(d) spin_unlock(&d->lock)
522#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
523#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
524
525struct hci_dev *hci_dev_get(int index);
526struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
527
528struct hci_dev *hci_alloc_dev(void);
529void hci_free_dev(struct hci_dev *hdev);
530int hci_register_dev(struct hci_dev *hdev);
531int hci_unregister_dev(struct hci_dev *hdev);
532int hci_suspend_dev(struct hci_dev *hdev);
533int hci_resume_dev(struct hci_dev *hdev);
534int hci_dev_open(__u16 dev);
535int hci_dev_close(__u16 dev);
536int hci_dev_reset(__u16 dev);
537int hci_dev_reset_stat(__u16 dev);
538int hci_dev_cmd(unsigned int cmd, void __user *arg);
539int hci_get_dev_list(void __user *arg);
540int hci_get_dev_info(void __user *arg);
541int hci_get_conn_list(void __user *arg);
542int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
543int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
544int hci_inquiry(void __user *arg);
545
546struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
547int hci_blacklist_clear(struct hci_dev *hdev);
548int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
549int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
550
551int hci_uuids_clear(struct hci_dev *hdev);
552
553int hci_link_keys_clear(struct hci_dev *hdev);
554struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
555int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
556 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
557struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
558struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
559 bdaddr_t *bdaddr, u8 type);
560int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
561 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
562int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
563
564int hci_remote_oob_data_clear(struct hci_dev *hdev);
565struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
566 bdaddr_t *bdaddr);
567int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
568 u8 *randomizer);
569int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
570
571#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
572int hci_adv_entries_clear(struct hci_dev *hdev);
573struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
574int hci_add_adv_entry(struct hci_dev *hdev,
575 struct hci_ev_le_advertising_info *ev);
576
577void hci_del_off_timer(struct hci_dev *hdev);
578
579void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
580
581int hci_recv_frame(struct sk_buff *skb);
582int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
583int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
584
585int hci_register_sysfs(struct hci_dev *hdev);
586void hci_unregister_sysfs(struct hci_dev *hdev);
587void hci_conn_init_sysfs(struct hci_conn *conn);
588void hci_conn_add_sysfs(struct hci_conn *conn);
589void hci_conn_del_sysfs(struct hci_conn *conn);
590
591#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
592
593/* ----- LMP capabilities ----- */
594#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
595#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
596#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
597#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
598#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
599#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
600#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
601#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
602
603/* ----- Extended LMP capabilities ----- */
604#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
605
606/* ----- HCI protocols ----- */
607struct hci_proto {
608 char *name;
609 unsigned int id;
610 unsigned long flags;
611
612 void *priv;
613
614 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
615 __u8 type);
616 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
617 int (*disconn_ind) (struct hci_conn *conn);
618 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
619 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
620 __u16 flags);
621 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
622 int (*security_cfm) (struct hci_conn *conn, __u8 status,
623 __u8 encrypt);
624};
625
626static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
627 __u8 type)
628{
629 register struct hci_proto *hp;
630 int mask = 0;
631
632 hp = hci_proto[HCI_PROTO_L2CAP];
633 if (hp && hp->connect_ind)
634 mask |= hp->connect_ind(hdev, bdaddr, type);
635
636 hp = hci_proto[HCI_PROTO_SCO];
637 if (hp && hp->connect_ind)
638 mask |= hp->connect_ind(hdev, bdaddr, type);
639
640 return mask;
641}
642
643static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
644{
645 register struct hci_proto *hp;
646
647 hp = hci_proto[HCI_PROTO_L2CAP];
648 if (hp && hp->connect_cfm)
649 hp->connect_cfm(conn, status);
650
651 hp = hci_proto[HCI_PROTO_SCO];
652 if (hp && hp->connect_cfm)
653 hp->connect_cfm(conn, status);
654
655 if (conn->connect_cfm_cb)
656 conn->connect_cfm_cb(conn, status);
657}
658
659static inline int hci_proto_disconn_ind(struct hci_conn *conn)
660{
661 register struct hci_proto *hp;
662 int reason = 0x13;
663
664 hp = hci_proto[HCI_PROTO_L2CAP];
665 if (hp && hp->disconn_ind)
666 reason = hp->disconn_ind(conn);
667
668 hp = hci_proto[HCI_PROTO_SCO];
669 if (hp && hp->disconn_ind)
670 reason = hp->disconn_ind(conn);
671
672 return reason;
673}
674
675static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
676{
677 register struct hci_proto *hp;
678
679 hp = hci_proto[HCI_PROTO_L2CAP];
680 if (hp && hp->disconn_cfm)
681 hp->disconn_cfm(conn, reason);
682
683 hp = hci_proto[HCI_PROTO_SCO];
684 if (hp && hp->disconn_cfm)
685 hp->disconn_cfm(conn, reason);
686
687 if (conn->disconn_cfm_cb)
688 conn->disconn_cfm_cb(conn, reason);
689}
690
691static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
692{
693 register struct hci_proto *hp;
694 __u8 encrypt;
695
696 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
697 return;
698
699 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
700
701 hp = hci_proto[HCI_PROTO_L2CAP];
702 if (hp && hp->security_cfm)
703 hp->security_cfm(conn, status, encrypt);
704
705 hp = hci_proto[HCI_PROTO_SCO];
706 if (hp && hp->security_cfm)
707 hp->security_cfm(conn, status, encrypt);
708
709 if (conn->security_cfm_cb)
710 conn->security_cfm_cb(conn, status);
711}
712
713static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
714 __u8 encrypt)
715{
716 register struct hci_proto *hp;
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
730int hci_register_proto(struct hci_proto *hproto);
731int hci_unregister_proto(struct hci_proto *hproto);
732
733/* ----- HCI callbacks ----- */
734struct hci_cb {
735 struct list_head list;
736
737 char *name;
738
739 void (*security_cfm) (struct hci_conn *conn, __u8 status,
740 __u8 encrypt);
741 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
742 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
743};
744
745static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
746{
747 struct list_head *p;
748 __u8 encrypt;
749
750 hci_proto_auth_cfm(conn, status);
751
752 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
753 return;
754
755 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
756
757 read_lock_bh(&hci_cb_list_lock);
758 list_for_each(p, &hci_cb_list) {
759 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
760 if (cb->security_cfm)
761 cb->security_cfm(conn, status, encrypt);
762 }
763 read_unlock_bh(&hci_cb_list_lock);
764}
765
766static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
767 __u8 encrypt)
768{
769 struct list_head *p;
770
771 if (conn->sec_level == BT_SECURITY_SDP)
772 conn->sec_level = BT_SECURITY_LOW;
773
774 if (conn->pending_sec_level > conn->sec_level)
775 conn->sec_level = conn->pending_sec_level;
776
777 hci_proto_encrypt_cfm(conn, status, encrypt);
778
779 read_lock_bh(&hci_cb_list_lock);
780 list_for_each(p, &hci_cb_list) {
781 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
782 if (cb->security_cfm)
783 cb->security_cfm(conn, status, encrypt);
784 }
785 read_unlock_bh(&hci_cb_list_lock);
786}
787
788static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
789{
790 struct list_head *p;
791
792 read_lock_bh(&hci_cb_list_lock);
793 list_for_each(p, &hci_cb_list) {
794 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
795 if (cb->key_change_cfm)
796 cb->key_change_cfm(conn, status);
797 }
798 read_unlock_bh(&hci_cb_list_lock);
799}
800
801static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
802 __u8 role)
803{
804 struct list_head *p;
805
806 read_lock_bh(&hci_cb_list_lock);
807 list_for_each(p, &hci_cb_list) {
808 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
809 if (cb->role_switch_cfm)
810 cb->role_switch_cfm(conn, status, role);
811 }
812 read_unlock_bh(&hci_cb_list_lock);
813}
814
815int hci_register_cb(struct hci_cb *hcb);
816int hci_unregister_cb(struct hci_cb *hcb);
817
818int hci_register_notifier(struct notifier_block *nb);
819int hci_unregister_notifier(struct notifier_block *nb);
820
821int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
822void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
823void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
824
825void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
826
827void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
828
829/* ----- HCI Sockets ----- */
830void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
831 struct sock *skip_sk);
832
833/* Management interface */
834int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
835int mgmt_index_added(u16 index);
836int mgmt_index_removed(u16 index);
837int mgmt_powered(u16 index, u8 powered);
838int mgmt_discoverable(u16 index, u8 discoverable);
839int mgmt_connectable(u16 index, u8 connectable);
840int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
841int mgmt_connected(u16 index, bdaddr_t *bdaddr);
842int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
843int mgmt_disconnect_failed(u16 index);
844int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
845int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
846int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
847int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
848int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
849 u8 confirm_hint);
850int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
851int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
852 u8 status);
853int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
854int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
855int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
856 u8 status);
857int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
858 u8 *eir);
859int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
860int mgmt_discovering(u16 index, u8 discovering);
861
862/* HCI info for socket */
863#define hci_pi(sk) ((struct hci_pinfo *) sk)
864
865struct hci_pinfo {
866 struct bt_sock bt;
867 struct hci_dev *hdev;
868 struct hci_filter filter;
869 __u32 cmsg_mask;
870 unsigned short channel;
871};
872
873/* HCI security filter */
874#define HCI_SFLT_MAX_OGF 5
875
876struct hci_sec_filter {
877 __u32 type_mask;
878 __u32 event_mask[2];
879 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
880};
881
882/* ----- HCI requests ----- */
883#define HCI_REQ_DONE 0
884#define HCI_REQ_PEND 1
885#define HCI_REQ_CANCELED 2
886
887#define hci_req_lock(d) mutex_lock(&d->req_lock)
888#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
889
890void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
891
892void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
893 u16 latency, u16 to_multiplier);
894void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
895 __u8 ltk[16]);
896void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
897void hci_le_ltk_neg_reply(struct hci_conn *conn);
898
899#endif /* __HCI_CORE_H */
1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
4 Copyright 2023-2024 NXP
5
6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License version 2 as
10 published by the Free Software Foundation;
11
12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20
21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
23 SOFTWARE IS DISCLAIMED.
24*/
25
26#ifndef __HCI_CORE_H
27#define __HCI_CORE_H
28
29#include <linux/idr.h>
30#include <linux/leds.h>
31#include <linux/rculist.h>
32
33#include <net/bluetooth/hci.h>
34#include <net/bluetooth/hci_sync.h>
35#include <net/bluetooth/hci_sock.h>
36#include <net/bluetooth/coredump.h>
37
38/* HCI priority */
39#define HCI_PRIO_MAX 7
40
41/* HCI maximum id value */
42#define HCI_MAX_ID 10000
43
44/* HCI Core structures */
45struct inquiry_data {
46 bdaddr_t bdaddr;
47 __u8 pscan_rep_mode;
48 __u8 pscan_period_mode;
49 __u8 pscan_mode;
50 __u8 dev_class[3];
51 __le16 clock_offset;
52 __s8 rssi;
53 __u8 ssp_mode;
54};
55
56struct inquiry_entry {
57 struct list_head all; /* inq_cache.all */
58 struct list_head list; /* unknown or resolve */
59 enum {
60 NAME_NOT_KNOWN,
61 NAME_NEEDED,
62 NAME_PENDING,
63 NAME_KNOWN,
64 } name_state;
65 __u32 timestamp;
66 struct inquiry_data data;
67};
68
69struct discovery_state {
70 int type;
71 enum {
72 DISCOVERY_STOPPED,
73 DISCOVERY_STARTING,
74 DISCOVERY_FINDING,
75 DISCOVERY_RESOLVING,
76 DISCOVERY_STOPPING,
77 } state;
78 struct list_head all; /* All devices found during inquiry */
79 struct list_head unknown; /* Name state not known */
80 struct list_head resolve; /* Name needs to be resolved */
81 __u32 timestamp;
82 bdaddr_t last_adv_addr;
83 u8 last_adv_addr_type;
84 s8 last_adv_rssi;
85 u32 last_adv_flags;
86 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH];
87 u8 last_adv_data_len;
88 bool report_invalid_rssi;
89 bool result_filtering;
90 bool limited;
91 s8 rssi;
92 u16 uuid_count;
93 u8 (*uuids)[16];
94 unsigned long scan_start;
95 unsigned long scan_duration;
96 unsigned long name_resolve_timeout;
97};
98
99#define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */
100
101enum suspend_tasks {
102 SUSPEND_PAUSE_DISCOVERY,
103 SUSPEND_UNPAUSE_DISCOVERY,
104
105 SUSPEND_PAUSE_ADVERTISING,
106 SUSPEND_UNPAUSE_ADVERTISING,
107
108 SUSPEND_SCAN_DISABLE,
109 SUSPEND_SCAN_ENABLE,
110 SUSPEND_DISCONNECTING,
111
112 SUSPEND_POWERING_DOWN,
113
114 SUSPEND_PREPARE_NOTIFIER,
115
116 SUSPEND_SET_ADV_FILTER,
117 __SUSPEND_NUM_TASKS
118};
119
120enum suspended_state {
121 BT_RUNNING = 0,
122 BT_SUSPEND_DISCONNECT,
123 BT_SUSPEND_CONFIGURE_WAKE,
124};
125
126struct hci_conn_hash {
127 struct list_head list;
128 unsigned int acl_num;
129 unsigned int sco_num;
130 unsigned int iso_num;
131 unsigned int le_num;
132 unsigned int le_num_peripheral;
133};
134
135struct bdaddr_list {
136 struct list_head list;
137 bdaddr_t bdaddr;
138 u8 bdaddr_type;
139};
140
141struct codec_list {
142 struct list_head list;
143 u8 id;
144 __u16 cid;
145 __u16 vid;
146 u8 transport;
147 u8 num_caps;
148 u32 len;
149 struct hci_codec_caps caps[];
150};
151
152struct bdaddr_list_with_irk {
153 struct list_head list;
154 bdaddr_t bdaddr;
155 u8 bdaddr_type;
156 u8 peer_irk[16];
157 u8 local_irk[16];
158};
159
160/* Bitmask of connection flags */
161enum hci_conn_flags {
162 HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
163 HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
164};
165typedef u8 hci_conn_flags_t;
166
167struct bdaddr_list_with_flags {
168 struct list_head list;
169 bdaddr_t bdaddr;
170 u8 bdaddr_type;
171 hci_conn_flags_t flags;
172};
173
174struct bt_uuid {
175 struct list_head list;
176 u8 uuid[16];
177 u8 size;
178 u8 svc_hint;
179};
180
181struct blocked_key {
182 struct list_head list;
183 struct rcu_head rcu;
184 u8 type;
185 u8 val[16];
186};
187
188struct smp_csrk {
189 bdaddr_t bdaddr;
190 u8 bdaddr_type;
191 u8 link_type;
192 u8 type;
193 u8 val[16];
194};
195
196struct smp_ltk {
197 struct list_head list;
198 struct rcu_head rcu;
199 bdaddr_t bdaddr;
200 u8 bdaddr_type;
201 u8 link_type;
202 u8 authenticated;
203 u8 type;
204 u8 enc_size;
205 __le16 ediv;
206 __le64 rand;
207 u8 val[16];
208};
209
210struct smp_irk {
211 struct list_head list;
212 struct rcu_head rcu;
213 bdaddr_t rpa;
214 bdaddr_t bdaddr;
215 u8 addr_type;
216 u8 link_type;
217 u8 val[16];
218};
219
220struct link_key {
221 struct list_head list;
222 struct rcu_head rcu;
223 bdaddr_t bdaddr;
224 u8 bdaddr_type;
225 u8 link_type;
226 u8 type;
227 u8 val[HCI_LINK_KEY_SIZE];
228 u8 pin_len;
229};
230
231struct oob_data {
232 struct list_head list;
233 bdaddr_t bdaddr;
234 u8 bdaddr_type;
235 u8 present;
236 u8 hash192[16];
237 u8 rand192[16];
238 u8 hash256[16];
239 u8 rand256[16];
240};
241
242struct adv_info {
243 struct list_head list;
244 bool enabled;
245 bool pending;
246 bool periodic;
247 __u8 mesh;
248 __u8 instance;
249 __u8 handle;
250 __u32 flags;
251 __u16 timeout;
252 __u16 remaining_time;
253 __u16 duration;
254 __u16 adv_data_len;
255 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
256 bool adv_data_changed;
257 __u16 scan_rsp_len;
258 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
259 bool scan_rsp_changed;
260 __u16 per_adv_data_len;
261 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
262 __s8 tx_power;
263 __u32 min_interval;
264 __u32 max_interval;
265 bdaddr_t random_addr;
266 bool rpa_expired;
267 struct delayed_work rpa_expired_cb;
268};
269
270#define HCI_MAX_ADV_INSTANCES 5
271#define HCI_DEFAULT_ADV_DURATION 2
272
273#define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
274
275#define DATA_CMP(_d1, _l1, _d2, _l2) \
276 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
277
278#define ADV_DATA_CMP(_adv, _data, _len) \
279 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
280
281#define SCAN_RSP_CMP(_adv, _data, _len) \
282 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
283
284struct monitored_device {
285 struct list_head list;
286
287 bdaddr_t bdaddr;
288 __u8 addr_type;
289 __u16 handle;
290 bool notified;
291};
292
293struct adv_pattern {
294 struct list_head list;
295 __u8 ad_type;
296 __u8 offset;
297 __u8 length;
298 __u8 value[HCI_MAX_EXT_AD_LENGTH];
299};
300
301struct adv_rssi_thresholds {
302 __s8 low_threshold;
303 __s8 high_threshold;
304 __u16 low_threshold_timeout;
305 __u16 high_threshold_timeout;
306 __u8 sampling_period;
307};
308
309struct adv_monitor {
310 struct list_head patterns;
311 struct adv_rssi_thresholds rssi;
312 __u16 handle;
313
314 enum {
315 ADV_MONITOR_STATE_NOT_REGISTERED,
316 ADV_MONITOR_STATE_REGISTERED,
317 ADV_MONITOR_STATE_OFFLOADED
318 } state;
319};
320
321#define HCI_MIN_ADV_MONITOR_HANDLE 1
322#define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32
323#define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16
324#define HCI_ADV_MONITOR_EXT_NONE 1
325#define HCI_ADV_MONITOR_EXT_MSFT 2
326
327#define HCI_MAX_SHORT_NAME_LENGTH 10
328
329#define HCI_CONN_HANDLE_MAX 0x0eff
330#define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX)
331
332/* Min encryption key size to match with SMP */
333#define HCI_MIN_ENC_KEY_SIZE 7
334
335/* Default LE RPA expiry time, 15 minutes */
336#define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
337
338/* Default min/max age of connection information (1s/3s) */
339#define DEFAULT_CONN_INFO_MIN_AGE 1000
340#define DEFAULT_CONN_INFO_MAX_AGE 3000
341/* Default authenticated payload timeout 30s */
342#define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8
343
344#define HCI_MAX_PAGES 3
345
346struct hci_dev {
347 struct list_head list;
348 struct mutex lock;
349
350 struct ida unset_handle_ida;
351
352 const char *name;
353 unsigned long flags;
354 __u16 id;
355 __u8 bus;
356 bdaddr_t bdaddr;
357 bdaddr_t setup_addr;
358 bdaddr_t public_addr;
359 bdaddr_t random_addr;
360 bdaddr_t static_addr;
361 __u8 adv_addr_type;
362 __u8 dev_name[HCI_MAX_NAME_LENGTH];
363 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
364 __u8 eir[HCI_MAX_EIR_LENGTH];
365 __u16 appearance;
366 __u8 dev_class[3];
367 __u8 major_class;
368 __u8 minor_class;
369 __u8 max_page;
370 __u8 features[HCI_MAX_PAGES][8];
371 __u8 le_features[8];
372 __u8 le_accept_list_size;
373 __u8 le_resolv_list_size;
374 __u8 le_num_of_adv_sets;
375 __u8 le_states[8];
376 __u8 mesh_ad_types[16];
377 __u8 mesh_send_ref;
378 __u8 commands[64];
379 __u8 hci_ver;
380 __u16 hci_rev;
381 __u8 lmp_ver;
382 __u16 manufacturer;
383 __u16 lmp_subver;
384 __u16 voice_setting;
385 __u8 num_iac;
386 __u16 stored_max_keys;
387 __u16 stored_num_keys;
388 __u8 io_capability;
389 __s8 inq_tx_power;
390 __u8 err_data_reporting;
391 __u16 page_scan_interval;
392 __u16 page_scan_window;
393 __u8 page_scan_type;
394 __u8 le_adv_channel_map;
395 __u16 le_adv_min_interval;
396 __u16 le_adv_max_interval;
397 __u8 le_scan_type;
398 __u16 le_scan_interval;
399 __u16 le_scan_window;
400 __u16 le_scan_int_suspend;
401 __u16 le_scan_window_suspend;
402 __u16 le_scan_int_discovery;
403 __u16 le_scan_window_discovery;
404 __u16 le_scan_int_adv_monitor;
405 __u16 le_scan_window_adv_monitor;
406 __u16 le_scan_int_connect;
407 __u16 le_scan_window_connect;
408 __u16 le_conn_min_interval;
409 __u16 le_conn_max_interval;
410 __u16 le_conn_latency;
411 __u16 le_supv_timeout;
412 __u16 le_def_tx_len;
413 __u16 le_def_tx_time;
414 __u16 le_max_tx_len;
415 __u16 le_max_tx_time;
416 __u16 le_max_rx_len;
417 __u16 le_max_rx_time;
418 __u8 le_max_key_size;
419 __u8 le_min_key_size;
420 __u16 discov_interleaved_timeout;
421 __u16 conn_info_min_age;
422 __u16 conn_info_max_age;
423 __u16 auth_payload_timeout;
424 __u8 min_enc_key_size;
425 __u8 max_enc_key_size;
426 __u8 pairing_opts;
427 __u8 ssp_debug_mode;
428 __u8 hw_error_code;
429 __u32 clock;
430 __u16 advmon_allowlist_duration;
431 __u16 advmon_no_filter_duration;
432 __u8 enable_advmon_interleave_scan;
433
434 __u16 devid_source;
435 __u16 devid_vendor;
436 __u16 devid_product;
437 __u16 devid_version;
438
439 __u8 def_page_scan_type;
440 __u16 def_page_scan_int;
441 __u16 def_page_scan_window;
442 __u8 def_inq_scan_type;
443 __u16 def_inq_scan_int;
444 __u16 def_inq_scan_window;
445 __u16 def_br_lsto;
446 __u16 def_page_timeout;
447 __u16 def_multi_adv_rotation_duration;
448 __u16 def_le_autoconnect_timeout;
449 __s8 min_le_tx_power;
450 __s8 max_le_tx_power;
451
452 __u16 pkt_type;
453 __u16 esco_type;
454 __u16 link_policy;
455 __u16 link_mode;
456
457 __u32 idle_timeout;
458 __u16 sniff_min_interval;
459 __u16 sniff_max_interval;
460
461 unsigned int auto_accept_delay;
462
463 unsigned long quirks;
464
465 atomic_t cmd_cnt;
466 unsigned int acl_cnt;
467 unsigned int sco_cnt;
468 unsigned int le_cnt;
469 unsigned int iso_cnt;
470
471 unsigned int acl_mtu;
472 unsigned int sco_mtu;
473 unsigned int le_mtu;
474 unsigned int iso_mtu;
475 unsigned int acl_pkts;
476 unsigned int sco_pkts;
477 unsigned int le_pkts;
478 unsigned int iso_pkts;
479
480 unsigned long acl_last_tx;
481 unsigned long sco_last_tx;
482 unsigned long le_last_tx;
483
484 __u8 le_tx_def_phys;
485 __u8 le_rx_def_phys;
486
487 struct workqueue_struct *workqueue;
488 struct workqueue_struct *req_workqueue;
489
490 struct work_struct power_on;
491 struct delayed_work power_off;
492 struct work_struct error_reset;
493 struct work_struct cmd_sync_work;
494 struct list_head cmd_sync_work_list;
495 struct mutex cmd_sync_work_lock;
496 struct mutex unregister_lock;
497 struct work_struct cmd_sync_cancel_work;
498 struct work_struct reenable_adv_work;
499
500 __u16 discov_timeout;
501 struct delayed_work discov_off;
502
503 struct delayed_work service_cache;
504
505 struct delayed_work cmd_timer;
506 struct delayed_work ncmd_timer;
507
508 struct work_struct rx_work;
509 struct work_struct cmd_work;
510 struct work_struct tx_work;
511
512 struct delayed_work le_scan_disable;
513
514 struct sk_buff_head rx_q;
515 struct sk_buff_head raw_q;
516 struct sk_buff_head cmd_q;
517
518 struct sk_buff *sent_cmd;
519 struct sk_buff *recv_event;
520
521 struct mutex req_lock;
522 wait_queue_head_t req_wait_q;
523 __u32 req_status;
524 __u32 req_result;
525 struct sk_buff *req_skb;
526 struct sk_buff *req_rsp;
527
528 void *smp_data;
529 void *smp_bredr_data;
530
531 struct discovery_state discovery;
532
533 int discovery_old_state;
534 bool discovery_paused;
535 int advertising_old_state;
536 bool advertising_paused;
537
538 struct notifier_block suspend_notifier;
539 enum suspended_state suspend_state_next;
540 enum suspended_state suspend_state;
541 bool scanning_paused;
542 bool suspended;
543 u8 wake_reason;
544 bdaddr_t wake_addr;
545 u8 wake_addr_type;
546
547 struct hci_conn_hash conn_hash;
548
549 struct list_head mesh_pending;
550 struct list_head mgmt_pending;
551 struct list_head reject_list;
552 struct list_head accept_list;
553 struct list_head uuids;
554 struct list_head link_keys;
555 struct list_head long_term_keys;
556 struct list_head identity_resolving_keys;
557 struct list_head remote_oob_data;
558 struct list_head le_accept_list;
559 struct list_head le_resolv_list;
560 struct list_head le_conn_params;
561 struct list_head pend_le_conns;
562 struct list_head pend_le_reports;
563 struct list_head blocked_keys;
564 struct list_head local_codecs;
565
566 struct hci_dev_stats stat;
567
568 atomic_t promisc;
569
570 const char *hw_info;
571 const char *fw_info;
572 struct dentry *debugfs;
573
574 struct hci_devcoredump dump;
575
576 struct device dev;
577
578 struct rfkill *rfkill;
579
580 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
581 hci_conn_flags_t conn_flags;
582
583 __s8 adv_tx_power;
584 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH];
585 __u8 adv_data_len;
586 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
587 __u8 scan_rsp_data_len;
588 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH];
589 __u8 per_adv_data_len;
590
591 struct list_head adv_instances;
592 unsigned int adv_instance_cnt;
593 __u8 cur_adv_instance;
594 __u16 adv_instance_timeout;
595 struct delayed_work adv_instance_expire;
596
597 struct idr adv_monitors_idr;
598 unsigned int adv_monitors_cnt;
599
600 __u8 irk[16];
601 __u32 rpa_timeout;
602 struct delayed_work rpa_expired;
603 bdaddr_t rpa;
604
605 struct delayed_work mesh_send_done;
606
607 enum {
608 INTERLEAVE_SCAN_NONE,
609 INTERLEAVE_SCAN_NO_FILTER,
610 INTERLEAVE_SCAN_ALLOWLIST
611 } interleave_scan_state;
612
613 struct delayed_work interleave_scan;
614
615 struct list_head monitored_devices;
616 bool advmon_pend_notify;
617
618#if IS_ENABLED(CONFIG_BT_LEDS)
619 struct led_trigger *power_led;
620#endif
621
622#if IS_ENABLED(CONFIG_BT_MSFTEXT)
623 __u16 msft_opcode;
624 void *msft_data;
625 bool msft_curve_validity;
626#endif
627
628#if IS_ENABLED(CONFIG_BT_AOSPEXT)
629 bool aosp_capable;
630 bool aosp_quality_report;
631#endif
632
633 int (*open)(struct hci_dev *hdev);
634 int (*close)(struct hci_dev *hdev);
635 int (*flush)(struct hci_dev *hdev);
636 int (*setup)(struct hci_dev *hdev);
637 int (*shutdown)(struct hci_dev *hdev);
638 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
639 void (*notify)(struct hci_dev *hdev, unsigned int evt);
640 void (*hw_error)(struct hci_dev *hdev, u8 code);
641 int (*post_init)(struct hci_dev *hdev);
642 int (*set_diag)(struct hci_dev *hdev, bool enable);
643 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
644 void (*cmd_timeout)(struct hci_dev *hdev);
645 void (*reset)(struct hci_dev *hdev);
646 bool (*wakeup)(struct hci_dev *hdev);
647 int (*set_quality_report)(struct hci_dev *hdev, bool enable);
648 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
649 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
650 struct bt_codec *codec, __u8 *vnd_len,
651 __u8 **vnd_data);
652};
653
654#define HCI_PHY_HANDLE(handle) (handle & 0xff)
655
656enum conn_reasons {
657 CONN_REASON_PAIR_DEVICE,
658 CONN_REASON_L2CAP_CHAN,
659 CONN_REASON_SCO_CONNECT,
660 CONN_REASON_ISO_CONNECT,
661};
662
663struct hci_conn {
664 struct list_head list;
665
666 atomic_t refcnt;
667
668 bdaddr_t dst;
669 __u8 dst_type;
670 bdaddr_t src;
671 __u8 src_type;
672 bdaddr_t init_addr;
673 __u8 init_addr_type;
674 bdaddr_t resp_addr;
675 __u8 resp_addr_type;
676 __u8 adv_instance;
677 __u16 handle;
678 __u16 sync_handle;
679 __u16 state;
680 __u16 mtu;
681 __u8 mode;
682 __u8 type;
683 __u8 role;
684 bool out;
685 __u8 attempt;
686 __u8 dev_class[3];
687 __u8 features[HCI_MAX_PAGES][8];
688 __u16 pkt_type;
689 __u16 link_policy;
690 __u8 key_type;
691 __u8 auth_type;
692 __u8 sec_level;
693 __u8 pending_sec_level;
694 __u8 pin_length;
695 __u8 enc_key_size;
696 __u8 io_capability;
697 __u32 passkey_notify;
698 __u8 passkey_entered;
699 __u16 disc_timeout;
700 __u16 conn_timeout;
701 __u16 setting;
702 __u16 auth_payload_timeout;
703 __u16 le_conn_min_interval;
704 __u16 le_conn_max_interval;
705 __u16 le_conn_interval;
706 __u16 le_conn_latency;
707 __u16 le_supv_timeout;
708 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH];
709 __u8 le_adv_data_len;
710 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN];
711 __u16 le_per_adv_data_len;
712 __u16 le_per_adv_data_offset;
713 __u8 le_adv_phy;
714 __u8 le_adv_sec_phy;
715 __u8 le_tx_phy;
716 __u8 le_rx_phy;
717 __s8 rssi;
718 __s8 tx_power;
719 __s8 max_tx_power;
720 struct bt_iso_qos iso_qos;
721 unsigned long flags;
722
723 enum conn_reasons conn_reason;
724 __u8 abort_reason;
725
726 __u32 clock;
727 __u16 clock_accuracy;
728
729 unsigned long conn_info_timestamp;
730
731 __u8 remote_cap;
732 __u8 remote_auth;
733 __u8 remote_id;
734
735 unsigned int sent;
736
737 struct sk_buff_head data_q;
738 struct list_head chan_list;
739
740 struct delayed_work disc_work;
741 struct delayed_work auto_accept_work;
742 struct delayed_work idle_work;
743 struct delayed_work le_conn_timeout;
744
745 struct device dev;
746 struct dentry *debugfs;
747
748 struct hci_dev *hdev;
749 void *l2cap_data;
750 void *sco_data;
751 void *iso_data;
752
753 struct list_head link_list;
754 struct hci_conn *parent;
755 struct hci_link *link;
756
757 struct bt_codec codec;
758
759 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
760 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
761 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
762
763 void (*cleanup)(struct hci_conn *conn);
764};
765
766struct hci_link {
767 struct list_head list;
768 struct hci_conn *conn;
769};
770
771struct hci_chan {
772 struct list_head list;
773 __u16 handle;
774 struct hci_conn *conn;
775 struct sk_buff_head data_q;
776 unsigned int sent;
777 __u8 state;
778};
779
780struct hci_conn_params {
781 struct list_head list;
782 struct list_head action;
783
784 bdaddr_t addr;
785 u8 addr_type;
786
787 u16 conn_min_interval;
788 u16 conn_max_interval;
789 u16 conn_latency;
790 u16 supervision_timeout;
791
792 enum {
793 HCI_AUTO_CONN_DISABLED,
794 HCI_AUTO_CONN_REPORT,
795 HCI_AUTO_CONN_DIRECT,
796 HCI_AUTO_CONN_ALWAYS,
797 HCI_AUTO_CONN_LINK_LOSS,
798 HCI_AUTO_CONN_EXPLICIT,
799 } auto_connect;
800
801 struct hci_conn *conn;
802 bool explicit_connect;
803 /* Accessed without hdev->lock: */
804 hci_conn_flags_t flags;
805 u8 privacy_mode;
806};
807
808extern struct list_head hci_dev_list;
809extern struct list_head hci_cb_list;
810extern rwlock_t hci_dev_list_lock;
811extern struct mutex hci_cb_list_lock;
812
813#define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
814#define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
815#define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
816#define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
817#define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
818#define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
819#define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
820
821#define hci_dev_clear_volatile_flags(hdev) \
822 do { \
823 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
824 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
825 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
826 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
827 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \
828 } while (0)
829
830#define hci_dev_le_state_simultaneous(hdev) \
831 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
832 (hdev->le_states[4] & 0x08) && /* Central */ \
833 (hdev->le_states[4] & 0x40) && /* Peripheral */ \
834 (hdev->le_states[3] & 0x10)) /* Simultaneous */
835
836/* ----- HCI interface to upper protocols ----- */
837int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
838int l2cap_disconn_ind(struct hci_conn *hcon);
839void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
840
841#if IS_ENABLED(CONFIG_BT_BREDR)
842int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
843void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
844#else
845static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
846 __u8 *flags)
847{
848 return 0;
849}
850
851static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
852{
853}
854#endif
855
856#if IS_ENABLED(CONFIG_BT_LE)
857int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
858void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
859#else
860static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
861 __u8 *flags)
862{
863 return 0;
864}
865static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
866 u16 flags)
867{
868}
869#endif
870
871/* ----- Inquiry cache ----- */
872#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
873#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
874
875static inline void discovery_init(struct hci_dev *hdev)
876{
877 hdev->discovery.state = DISCOVERY_STOPPED;
878 INIT_LIST_HEAD(&hdev->discovery.all);
879 INIT_LIST_HEAD(&hdev->discovery.unknown);
880 INIT_LIST_HEAD(&hdev->discovery.resolve);
881 hdev->discovery.report_invalid_rssi = true;
882 hdev->discovery.rssi = HCI_RSSI_INVALID;
883}
884
885static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
886{
887 hdev->discovery.result_filtering = false;
888 hdev->discovery.report_invalid_rssi = true;
889 hdev->discovery.rssi = HCI_RSSI_INVALID;
890 hdev->discovery.uuid_count = 0;
891 kfree(hdev->discovery.uuids);
892 hdev->discovery.uuids = NULL;
893 hdev->discovery.scan_start = 0;
894 hdev->discovery.scan_duration = 0;
895}
896
897bool hci_discovery_active(struct hci_dev *hdev);
898
899void hci_discovery_set_state(struct hci_dev *hdev, int state);
900
901static inline int inquiry_cache_empty(struct hci_dev *hdev)
902{
903 return list_empty(&hdev->discovery.all);
904}
905
906static inline long inquiry_cache_age(struct hci_dev *hdev)
907{
908 struct discovery_state *c = &hdev->discovery;
909 return jiffies - c->timestamp;
910}
911
912static inline long inquiry_entry_age(struct inquiry_entry *e)
913{
914 return jiffies - e->timestamp;
915}
916
917struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
918 bdaddr_t *bdaddr);
919struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
920 bdaddr_t *bdaddr);
921struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
922 bdaddr_t *bdaddr,
923 int state);
924void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
925 struct inquiry_entry *ie);
926u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
927 bool name_known);
928void hci_inquiry_cache_flush(struct hci_dev *hdev);
929
930/* ----- HCI Connections ----- */
931enum {
932 HCI_CONN_AUTH_PEND,
933 HCI_CONN_ENCRYPT_PEND,
934 HCI_CONN_RSWITCH_PEND,
935 HCI_CONN_MODE_CHANGE_PEND,
936 HCI_CONN_SCO_SETUP_PEND,
937 HCI_CONN_MGMT_CONNECTED,
938 HCI_CONN_SSP_ENABLED,
939 HCI_CONN_SC_ENABLED,
940 HCI_CONN_AES_CCM,
941 HCI_CONN_POWER_SAVE,
942 HCI_CONN_FLUSH_KEY,
943 HCI_CONN_ENCRYPT,
944 HCI_CONN_AUTH,
945 HCI_CONN_SECURE,
946 HCI_CONN_FIPS,
947 HCI_CONN_STK_ENCRYPT,
948 HCI_CONN_AUTH_INITIATOR,
949 HCI_CONN_DROP,
950 HCI_CONN_CANCEL,
951 HCI_CONN_PARAM_REMOVAL_PEND,
952 HCI_CONN_NEW_LINK_KEY,
953 HCI_CONN_SCANNING,
954 HCI_CONN_AUTH_FAILURE,
955 HCI_CONN_PER_ADV,
956 HCI_CONN_BIG_CREATED,
957 HCI_CONN_CREATE_CIS,
958 HCI_CONN_BIG_SYNC,
959 HCI_CONN_BIG_SYNC_FAILED,
960 HCI_CONN_PA_SYNC,
961 HCI_CONN_PA_SYNC_FAILED,
962};
963
964static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
965{
966 struct hci_dev *hdev = conn->hdev;
967 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
968 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
969}
970
971static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
972{
973 struct hci_dev *hdev = conn->hdev;
974 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
975 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
976}
977
978static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
979{
980 struct hci_conn_hash *h = &hdev->conn_hash;
981 list_add_tail_rcu(&c->list, &h->list);
982 switch (c->type) {
983 case ACL_LINK:
984 h->acl_num++;
985 break;
986 case LE_LINK:
987 h->le_num++;
988 if (c->role == HCI_ROLE_SLAVE)
989 h->le_num_peripheral++;
990 break;
991 case SCO_LINK:
992 case ESCO_LINK:
993 h->sco_num++;
994 break;
995 case ISO_LINK:
996 h->iso_num++;
997 break;
998 }
999}
1000
1001static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1002{
1003 struct hci_conn_hash *h = &hdev->conn_hash;
1004
1005 list_del_rcu(&c->list);
1006 synchronize_rcu();
1007
1008 switch (c->type) {
1009 case ACL_LINK:
1010 h->acl_num--;
1011 break;
1012 case LE_LINK:
1013 h->le_num--;
1014 if (c->role == HCI_ROLE_SLAVE)
1015 h->le_num_peripheral--;
1016 break;
1017 case SCO_LINK:
1018 case ESCO_LINK:
1019 h->sco_num--;
1020 break;
1021 case ISO_LINK:
1022 h->iso_num--;
1023 break;
1024 }
1025}
1026
1027static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1028{
1029 struct hci_conn_hash *h = &hdev->conn_hash;
1030 switch (type) {
1031 case ACL_LINK:
1032 return h->acl_num;
1033 case LE_LINK:
1034 return h->le_num;
1035 case SCO_LINK:
1036 case ESCO_LINK:
1037 return h->sco_num;
1038 case ISO_LINK:
1039 return h->iso_num;
1040 default:
1041 return 0;
1042 }
1043}
1044
1045static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1046{
1047 struct hci_conn_hash *c = &hdev->conn_hash;
1048
1049 return c->acl_num + c->sco_num + c->le_num + c->iso_num;
1050}
1051
1052static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn)
1053{
1054 struct hci_conn_hash *h = &hdev->conn_hash;
1055 struct hci_conn *c;
1056
1057 rcu_read_lock();
1058
1059 list_for_each_entry_rcu(c, &h->list, list) {
1060 if (c == conn) {
1061 rcu_read_unlock();
1062 return true;
1063 }
1064 }
1065 rcu_read_unlock();
1066
1067 return false;
1068}
1069
1070static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1071{
1072 struct hci_conn_hash *h = &hdev->conn_hash;
1073 struct hci_conn *c;
1074 __u8 type = INVALID_LINK;
1075
1076 rcu_read_lock();
1077
1078 list_for_each_entry_rcu(c, &h->list, list) {
1079 if (c->handle == handle) {
1080 type = c->type;
1081 break;
1082 }
1083 }
1084
1085 rcu_read_unlock();
1086
1087 return type;
1088}
1089
1090static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1091 bdaddr_t *ba, __u8 bis)
1092{
1093 struct hci_conn_hash *h = &hdev->conn_hash;
1094 struct hci_conn *c;
1095
1096 rcu_read_lock();
1097
1098 list_for_each_entry_rcu(c, &h->list, list) {
1099 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1100 continue;
1101
1102 if (c->iso_qos.bcast.bis == bis) {
1103 rcu_read_unlock();
1104 return c;
1105 }
1106 }
1107 rcu_read_unlock();
1108
1109 return NULL;
1110}
1111
1112static inline struct hci_conn *
1113hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1114 bdaddr_t *ba,
1115 __u8 big, __u8 bis)
1116{
1117 struct hci_conn_hash *h = &hdev->conn_hash;
1118 struct hci_conn *c;
1119
1120 rcu_read_lock();
1121
1122 list_for_each_entry_rcu(c, &h->list, list) {
1123 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1124 !test_bit(HCI_CONN_PER_ADV, &c->flags))
1125 continue;
1126
1127 if (c->iso_qos.bcast.big == big &&
1128 c->iso_qos.bcast.bis == bis) {
1129 rcu_read_unlock();
1130 return c;
1131 }
1132 }
1133 rcu_read_unlock();
1134
1135 return NULL;
1136}
1137
1138static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1139 __u16 handle)
1140{
1141 struct hci_conn_hash *h = &hdev->conn_hash;
1142 struct hci_conn *c;
1143
1144 rcu_read_lock();
1145
1146 list_for_each_entry_rcu(c, &h->list, list) {
1147 if (c->handle == handle) {
1148 rcu_read_unlock();
1149 return c;
1150 }
1151 }
1152 rcu_read_unlock();
1153
1154 return NULL;
1155}
1156
1157static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1158 __u8 type, bdaddr_t *ba)
1159{
1160 struct hci_conn_hash *h = &hdev->conn_hash;
1161 struct hci_conn *c;
1162
1163 rcu_read_lock();
1164
1165 list_for_each_entry_rcu(c, &h->list, list) {
1166 if (c->type == type && !bacmp(&c->dst, ba)) {
1167 rcu_read_unlock();
1168 return c;
1169 }
1170 }
1171
1172 rcu_read_unlock();
1173
1174 return NULL;
1175}
1176
1177static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1178 bdaddr_t *ba,
1179 __u8 ba_type)
1180{
1181 struct hci_conn_hash *h = &hdev->conn_hash;
1182 struct hci_conn *c;
1183
1184 rcu_read_lock();
1185
1186 list_for_each_entry_rcu(c, &h->list, list) {
1187 if (c->type != LE_LINK)
1188 continue;
1189
1190 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1191 rcu_read_unlock();
1192 return c;
1193 }
1194 }
1195
1196 rcu_read_unlock();
1197
1198 return NULL;
1199}
1200
1201static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1202 bdaddr_t *ba,
1203 __u8 ba_type,
1204 __u8 cig,
1205 __u8 id)
1206{
1207 struct hci_conn_hash *h = &hdev->conn_hash;
1208 struct hci_conn *c;
1209
1210 rcu_read_lock();
1211
1212 list_for_each_entry_rcu(c, &h->list, list) {
1213 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1214 continue;
1215
1216 /* Match CIG ID if set */
1217 if (cig != c->iso_qos.ucast.cig)
1218 continue;
1219
1220 /* Match CIS ID if set */
1221 if (id != c->iso_qos.ucast.cis)
1222 continue;
1223
1224 /* Match destination address if set */
1225 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1226 rcu_read_unlock();
1227 return c;
1228 }
1229 }
1230
1231 rcu_read_unlock();
1232
1233 return NULL;
1234}
1235
1236static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1237 __u8 handle)
1238{
1239 struct hci_conn_hash *h = &hdev->conn_hash;
1240 struct hci_conn *c;
1241
1242 rcu_read_lock();
1243
1244 list_for_each_entry_rcu(c, &h->list, list) {
1245 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1246 continue;
1247
1248 if (handle == c->iso_qos.ucast.cig) {
1249 rcu_read_unlock();
1250 return c;
1251 }
1252 }
1253
1254 rcu_read_unlock();
1255
1256 return NULL;
1257}
1258
1259static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1260 __u8 handle)
1261{
1262 struct hci_conn_hash *h = &hdev->conn_hash;
1263 struct hci_conn *c;
1264
1265 rcu_read_lock();
1266
1267 list_for_each_entry_rcu(c, &h->list, list) {
1268 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1269 continue;
1270
1271 if (handle == c->iso_qos.bcast.big) {
1272 rcu_read_unlock();
1273 return c;
1274 }
1275 }
1276
1277 rcu_read_unlock();
1278
1279 return NULL;
1280}
1281
1282static inline struct hci_conn *
1283hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state)
1284{
1285 struct hci_conn_hash *h = &hdev->conn_hash;
1286 struct hci_conn *c;
1287
1288 rcu_read_lock();
1289
1290 list_for_each_entry_rcu(c, &h->list, list) {
1291 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK ||
1292 c->state != state)
1293 continue;
1294
1295 if (handle == c->iso_qos.bcast.big) {
1296 rcu_read_unlock();
1297 return c;
1298 }
1299 }
1300
1301 rcu_read_unlock();
1302
1303 return NULL;
1304}
1305
1306static inline struct hci_conn *
1307hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1308{
1309 struct hci_conn_hash *h = &hdev->conn_hash;
1310 struct hci_conn *c;
1311
1312 rcu_read_lock();
1313
1314 list_for_each_entry_rcu(c, &h->list, list) {
1315 if (c->type != ISO_LINK ||
1316 !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1317 continue;
1318
1319 if (c->iso_qos.bcast.big == big) {
1320 rcu_read_unlock();
1321 return c;
1322 }
1323 }
1324 rcu_read_unlock();
1325
1326 return NULL;
1327}
1328
1329static inline struct hci_conn *
1330hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1331{
1332 struct hci_conn_hash *h = &hdev->conn_hash;
1333 struct hci_conn *c;
1334
1335 rcu_read_lock();
1336
1337 list_for_each_entry_rcu(c, &h->list, list) {
1338 if (c->type != ISO_LINK)
1339 continue;
1340
1341 if (c->sync_handle == sync_handle) {
1342 rcu_read_unlock();
1343 return c;
1344 }
1345 }
1346 rcu_read_unlock();
1347
1348 return NULL;
1349}
1350
1351static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1352 __u8 type, __u16 state)
1353{
1354 struct hci_conn_hash *h = &hdev->conn_hash;
1355 struct hci_conn *c;
1356
1357 rcu_read_lock();
1358
1359 list_for_each_entry_rcu(c, &h->list, list) {
1360 if (c->type == type && c->state == state) {
1361 rcu_read_unlock();
1362 return c;
1363 }
1364 }
1365
1366 rcu_read_unlock();
1367
1368 return NULL;
1369}
1370
1371typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
1372static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1373 hci_conn_func_t func, __u8 type,
1374 __u16 state, void *data)
1375{
1376 struct hci_conn_hash *h = &hdev->conn_hash;
1377 struct hci_conn *c;
1378
1379 if (!func)
1380 return;
1381
1382 rcu_read_lock();
1383
1384 list_for_each_entry_rcu(c, &h->list, list) {
1385 if (c->type == type && c->state == state)
1386 func(c, data);
1387 }
1388
1389 rcu_read_unlock();
1390}
1391
1392static inline void hci_conn_hash_list_flag(struct hci_dev *hdev,
1393 hci_conn_func_t func, __u8 type,
1394 __u8 flag, void *data)
1395{
1396 struct hci_conn_hash *h = &hdev->conn_hash;
1397 struct hci_conn *c;
1398
1399 if (!func)
1400 return;
1401
1402 rcu_read_lock();
1403
1404 list_for_each_entry_rcu(c, &h->list, list) {
1405 if (c->type == type && test_bit(flag, &c->flags))
1406 func(c, data);
1407 }
1408
1409 rcu_read_unlock();
1410}
1411
1412static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1413{
1414 struct hci_conn_hash *h = &hdev->conn_hash;
1415 struct hci_conn *c;
1416
1417 rcu_read_lock();
1418
1419 list_for_each_entry_rcu(c, &h->list, list) {
1420 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1421 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1422 rcu_read_unlock();
1423 return c;
1424 }
1425 }
1426
1427 rcu_read_unlock();
1428
1429 return NULL;
1430}
1431
1432/* Returns true if an le connection is in the scanning state */
1433static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1434{
1435 struct hci_conn_hash *h = &hdev->conn_hash;
1436 struct hci_conn *c;
1437
1438 rcu_read_lock();
1439
1440 list_for_each_entry_rcu(c, &h->list, list) {
1441 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1442 test_bit(HCI_CONN_SCANNING, &c->flags)) {
1443 rcu_read_unlock();
1444 return true;
1445 }
1446 }
1447
1448 rcu_read_unlock();
1449
1450 return false;
1451}
1452
1453int hci_disconnect(struct hci_conn *conn, __u8 reason);
1454bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1455void hci_sco_setup(struct hci_conn *conn, __u8 status);
1456bool hci_iso_setup_path(struct hci_conn *conn);
1457int hci_le_create_cis_pending(struct hci_dev *hdev);
1458int hci_conn_check_create_cis(struct hci_conn *conn);
1459
1460struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1461 u8 role, u16 handle);
1462struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1463 bdaddr_t *dst, u8 role);
1464void hci_conn_del(struct hci_conn *conn);
1465void hci_conn_hash_flush(struct hci_dev *hdev);
1466
1467struct hci_chan *hci_chan_create(struct hci_conn *conn);
1468void hci_chan_del(struct hci_chan *chan);
1469void hci_chan_list_flush(struct hci_conn *conn);
1470struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1471
1472struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1473 u8 dst_type, u8 sec_level,
1474 u16 conn_timeout,
1475 enum conn_reasons conn_reason);
1476struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1477 u8 dst_type, bool dst_resolved, u8 sec_level,
1478 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy);
1479void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status);
1480struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1481 u8 sec_level, u8 auth_type,
1482 enum conn_reasons conn_reason, u16 timeout);
1483struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1484 __u16 setting, struct bt_codec *codec,
1485 u16 timeout);
1486struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1487 __u8 dst_type, struct bt_iso_qos *qos);
1488struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1489 struct bt_iso_qos *qos,
1490 __u8 base_len, __u8 *base);
1491struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1492 __u8 dst_type, struct bt_iso_qos *qos);
1493struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1494 __u8 dst_type, struct bt_iso_qos *qos,
1495 __u8 data_len, __u8 *data);
1496struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst,
1497 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos);
1498int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1499 struct bt_iso_qos *qos,
1500 __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1501int hci_conn_check_link_mode(struct hci_conn *conn);
1502int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1503int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1504 bool initiator);
1505int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1506
1507void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1508
1509void hci_conn_failed(struct hci_conn *conn, u8 status);
1510u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1511
1512/*
1513 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1514 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1515 * working or anything else. They just guarantee that the object is available
1516 * and can be dereferenced. So you can use its locks, local variables and any
1517 * other constant data.
1518 * Before accessing runtime data, you _must_ lock the object and then check that
1519 * it is still running. As soon as you release the locks, the connection might
1520 * get dropped, though.
1521 *
1522 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1523 * how long the underlying connection is held. So every channel that runs on the
1524 * hci_conn object calls this to prevent the connection from disappearing. As
1525 * long as you hold a device, you must also guarantee that you have a valid
1526 * reference to the device via hci_conn_get() (or the initial reference from
1527 * hci_conn_add()).
1528 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1529 * break because nobody cares for that. But this means, we cannot use
1530 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1531 */
1532
1533static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1534{
1535 get_device(&conn->dev);
1536 return conn;
1537}
1538
1539static inline void hci_conn_put(struct hci_conn *conn)
1540{
1541 put_device(&conn->dev);
1542}
1543
1544static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1545{
1546 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1547
1548 atomic_inc(&conn->refcnt);
1549 cancel_delayed_work(&conn->disc_work);
1550
1551 return conn;
1552}
1553
1554static inline void hci_conn_drop(struct hci_conn *conn)
1555{
1556 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1557
1558 if (atomic_dec_and_test(&conn->refcnt)) {
1559 unsigned long timeo;
1560
1561 switch (conn->type) {
1562 case ACL_LINK:
1563 case LE_LINK:
1564 cancel_delayed_work(&conn->idle_work);
1565 if (conn->state == BT_CONNECTED) {
1566 timeo = conn->disc_timeout;
1567 if (!conn->out)
1568 timeo *= 2;
1569 } else {
1570 timeo = 0;
1571 }
1572 break;
1573
1574 default:
1575 timeo = 0;
1576 break;
1577 }
1578
1579 cancel_delayed_work(&conn->disc_work);
1580 queue_delayed_work(conn->hdev->workqueue,
1581 &conn->disc_work, timeo);
1582 }
1583}
1584
1585/* ----- HCI Devices ----- */
1586static inline void hci_dev_put(struct hci_dev *d)
1587{
1588 BT_DBG("%s orig refcnt %d", d->name,
1589 kref_read(&d->dev.kobj.kref));
1590
1591 put_device(&d->dev);
1592}
1593
1594static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1595{
1596 BT_DBG("%s orig refcnt %d", d->name,
1597 kref_read(&d->dev.kobj.kref));
1598
1599 get_device(&d->dev);
1600 return d;
1601}
1602
1603#define hci_dev_lock(d) mutex_lock(&d->lock)
1604#define hci_dev_unlock(d) mutex_unlock(&d->lock)
1605
1606#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1607#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1608
1609static inline void *hci_get_drvdata(struct hci_dev *hdev)
1610{
1611 return dev_get_drvdata(&hdev->dev);
1612}
1613
1614static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1615{
1616 dev_set_drvdata(&hdev->dev, data);
1617}
1618
1619static inline void *hci_get_priv(struct hci_dev *hdev)
1620{
1621 return (char *)hdev + sizeof(*hdev);
1622}
1623
1624struct hci_dev *hci_dev_get(int index);
1625struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1626
1627struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1628
1629static inline struct hci_dev *hci_alloc_dev(void)
1630{
1631 return hci_alloc_dev_priv(0);
1632}
1633
1634void hci_free_dev(struct hci_dev *hdev);
1635int hci_register_dev(struct hci_dev *hdev);
1636void hci_unregister_dev(struct hci_dev *hdev);
1637void hci_release_dev(struct hci_dev *hdev);
1638int hci_register_suspend_notifier(struct hci_dev *hdev);
1639int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1640int hci_suspend_dev(struct hci_dev *hdev);
1641int hci_resume_dev(struct hci_dev *hdev);
1642int hci_reset_dev(struct hci_dev *hdev);
1643int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1644int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1645__printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1646__printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1647
1648static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1649{
1650#if IS_ENABLED(CONFIG_BT_MSFTEXT)
1651 hdev->msft_opcode = opcode;
1652#endif
1653}
1654
1655static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1656{
1657#if IS_ENABLED(CONFIG_BT_AOSPEXT)
1658 hdev->aosp_capable = true;
1659#endif
1660}
1661
1662static inline void hci_devcd_setup(struct hci_dev *hdev)
1663{
1664#ifdef CONFIG_DEV_COREDUMP
1665 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1666 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1667 skb_queue_head_init(&hdev->dump.dump_q);
1668#endif
1669}
1670
1671int hci_dev_open(__u16 dev);
1672int hci_dev_close(__u16 dev);
1673int hci_dev_do_close(struct hci_dev *hdev);
1674int hci_dev_reset(__u16 dev);
1675int hci_dev_reset_stat(__u16 dev);
1676int hci_dev_cmd(unsigned int cmd, void __user *arg);
1677int hci_get_dev_list(void __user *arg);
1678int hci_get_dev_info(void __user *arg);
1679int hci_get_conn_list(void __user *arg);
1680int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1681int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1682int hci_inquiry(void __user *arg);
1683
1684struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1685 bdaddr_t *bdaddr, u8 type);
1686struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1687 struct list_head *list, bdaddr_t *bdaddr,
1688 u8 type);
1689struct bdaddr_list_with_flags *
1690hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1691 u8 type);
1692int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1693int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1694 u8 type, u8 *peer_irk, u8 *local_irk);
1695int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1696 u8 type, u32 flags);
1697int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1698int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1699 u8 type);
1700int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1701 u8 type);
1702void hci_bdaddr_list_clear(struct list_head *list);
1703
1704struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1705 bdaddr_t *addr, u8 addr_type);
1706struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1707 bdaddr_t *addr, u8 addr_type);
1708void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1709void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1710void hci_conn_params_free(struct hci_conn_params *param);
1711
1712void hci_pend_le_list_del_init(struct hci_conn_params *param);
1713void hci_pend_le_list_add(struct hci_conn_params *param,
1714 struct list_head *list);
1715struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1716 bdaddr_t *addr,
1717 u8 addr_type);
1718
1719void hci_uuids_clear(struct hci_dev *hdev);
1720
1721void hci_link_keys_clear(struct hci_dev *hdev);
1722struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1723struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1724 bdaddr_t *bdaddr, u8 *val, u8 type,
1725 u8 pin_len, bool *persistent);
1726struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1727 u8 addr_type, u8 type, u8 authenticated,
1728 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1729struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1730 u8 addr_type, u8 role);
1731int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1732void hci_smp_ltks_clear(struct hci_dev *hdev);
1733int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1734
1735struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1736struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1737 u8 addr_type);
1738struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1739 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1740void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1741bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1742void hci_blocked_keys_clear(struct hci_dev *hdev);
1743void hci_smp_irks_clear(struct hci_dev *hdev);
1744
1745bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1746
1747void hci_remote_oob_data_clear(struct hci_dev *hdev);
1748struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1749 bdaddr_t *bdaddr, u8 bdaddr_type);
1750int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1751 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1752 u8 *hash256, u8 *rand256);
1753int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1754 u8 bdaddr_type);
1755
1756void hci_adv_instances_clear(struct hci_dev *hdev);
1757struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1758struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1759struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1760 u32 flags, u16 adv_data_len, u8 *adv_data,
1761 u16 scan_rsp_len, u8 *scan_rsp_data,
1762 u16 timeout, u16 duration, s8 tx_power,
1763 u32 min_interval, u32 max_interval,
1764 u8 mesh_handle);
1765struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1766 u32 flags, u8 data_len, u8 *data,
1767 u32 min_interval, u32 max_interval);
1768int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1769 u16 adv_data_len, u8 *adv_data,
1770 u16 scan_rsp_len, u8 *scan_rsp_data);
1771int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1772void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1773u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1774bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1775
1776void hci_adv_monitors_clear(struct hci_dev *hdev);
1777void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1778int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1779int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1780int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1781bool hci_is_adv_monitoring(struct hci_dev *hdev);
1782int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1783
1784void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1785
1786void hci_init_sysfs(struct hci_dev *hdev);
1787void hci_conn_init_sysfs(struct hci_conn *conn);
1788void hci_conn_add_sysfs(struct hci_conn *conn);
1789void hci_conn_del_sysfs(struct hci_conn *conn);
1790
1791#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1792#define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1793
1794/* ----- LMP capabilities ----- */
1795#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1796#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1797#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1798#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1799#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1800#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1801#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1802#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1803#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1804#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1805#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1806#define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1807#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1808#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1809#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1810#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1811#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1812#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1813#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1814#define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1815#define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M)
1816#define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M)
1817#define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1818#define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1819
1820/* ----- Extended LMP capabilities ----- */
1821#define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1822#define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1823#define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1824#define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1825#define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1826#define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1827
1828/* ----- Host capabilities ----- */
1829#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1830#define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1831#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1832#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1833
1834#define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1835 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1836#define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1837 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1838#define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \
1839 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1840#define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \
1841 !adv->rpa_expired)
1842
1843#define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1844 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1845
1846#define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1847
1848#define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1849 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1850
1851#define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1852 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1853 &(dev)->quirks))
1854
1855#define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1856 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1857
1858#define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1859
1860/* Use LL Privacy based address resolution if supported */
1861#define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1862 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1863
1864#define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1865 (hdev->commands[39] & 0x04))
1866
1867#define read_key_size_capable(dev) \
1868 ((dev)->commands[20] & 0x10 && \
1869 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks))
1870
1871/* Use enhanced synchronous connection if command is supported and its quirk
1872 * has not been set.
1873 */
1874#define enhanced_sync_conn_capable(dev) \
1875 (((dev)->commands[29] & 0x08) && \
1876 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1877
1878/* Use ext scanning if set ext scan param and ext scan enable is supported */
1879#define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1880 ((dev)->commands[37] & 0x40) && \
1881 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1882
1883/* Use ext create connection if command is supported */
1884#define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1885
1886/* Extended advertising support */
1887#define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1888
1889/* Maximum advertising length */
1890#define max_adv_len(dev) \
1891 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1892
1893/* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1894 *
1895 * C24: Mandatory if the LE Controller supports Connection State and either
1896 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1897 */
1898#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1899 ext_adv_capable(dev))
1900
1901/* Periodic advertising support */
1902#define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
1903
1904/* CIS Master/Slave and BIS support */
1905#define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
1906#define cis_capable(dev) \
1907 (cis_central_capable(dev) || cis_peripheral_capable(dev))
1908#define cis_central_capable(dev) \
1909 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
1910#define cis_peripheral_capable(dev) \
1911 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
1912#define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
1913#define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
1914
1915#define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
1916 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
1917
1918/* ----- HCI protocols ----- */
1919#define HCI_PROTO_DEFER 0x01
1920
1921static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1922 __u8 type, __u8 *flags)
1923{
1924 switch (type) {
1925 case ACL_LINK:
1926 return l2cap_connect_ind(hdev, bdaddr);
1927
1928 case SCO_LINK:
1929 case ESCO_LINK:
1930 return sco_connect_ind(hdev, bdaddr, flags);
1931
1932 case ISO_LINK:
1933 return iso_connect_ind(hdev, bdaddr, flags);
1934
1935 default:
1936 BT_ERR("unknown link type %d", type);
1937 return -EINVAL;
1938 }
1939}
1940
1941static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1942{
1943 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1944 return HCI_ERROR_REMOTE_USER_TERM;
1945
1946 return l2cap_disconn_ind(conn);
1947}
1948
1949/* ----- HCI callbacks ----- */
1950struct hci_cb {
1951 struct list_head list;
1952
1953 char *name;
1954
1955 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1956 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1957 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1958 __u8 encrypt);
1959 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1960 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1961};
1962
1963static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1964{
1965 struct hci_cb *cb;
1966
1967 mutex_lock(&hci_cb_list_lock);
1968 list_for_each_entry(cb, &hci_cb_list, list) {
1969 if (cb->connect_cfm)
1970 cb->connect_cfm(conn, status);
1971 }
1972 mutex_unlock(&hci_cb_list_lock);
1973
1974 if (conn->connect_cfm_cb)
1975 conn->connect_cfm_cb(conn, status);
1976}
1977
1978static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1979{
1980 struct hci_cb *cb;
1981
1982 mutex_lock(&hci_cb_list_lock);
1983 list_for_each_entry(cb, &hci_cb_list, list) {
1984 if (cb->disconn_cfm)
1985 cb->disconn_cfm(conn, reason);
1986 }
1987 mutex_unlock(&hci_cb_list_lock);
1988
1989 if (conn->disconn_cfm_cb)
1990 conn->disconn_cfm_cb(conn, reason);
1991}
1992
1993static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1994{
1995 struct hci_cb *cb;
1996 __u8 encrypt;
1997
1998 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1999 return;
2000
2001 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2002
2003 mutex_lock(&hci_cb_list_lock);
2004 list_for_each_entry(cb, &hci_cb_list, list) {
2005 if (cb->security_cfm)
2006 cb->security_cfm(conn, status, encrypt);
2007 }
2008 mutex_unlock(&hci_cb_list_lock);
2009
2010 if (conn->security_cfm_cb)
2011 conn->security_cfm_cb(conn, status);
2012}
2013
2014static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2015{
2016 struct hci_cb *cb;
2017 __u8 encrypt;
2018
2019 if (conn->state == BT_CONFIG) {
2020 if (!status)
2021 conn->state = BT_CONNECTED;
2022
2023 hci_connect_cfm(conn, status);
2024 hci_conn_drop(conn);
2025 return;
2026 }
2027
2028 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2029 encrypt = 0x00;
2030 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2031 encrypt = 0x02;
2032 else
2033 encrypt = 0x01;
2034
2035 if (!status) {
2036 if (conn->sec_level == BT_SECURITY_SDP)
2037 conn->sec_level = BT_SECURITY_LOW;
2038
2039 if (conn->pending_sec_level > conn->sec_level)
2040 conn->sec_level = conn->pending_sec_level;
2041 }
2042
2043 mutex_lock(&hci_cb_list_lock);
2044 list_for_each_entry(cb, &hci_cb_list, list) {
2045 if (cb->security_cfm)
2046 cb->security_cfm(conn, status, encrypt);
2047 }
2048 mutex_unlock(&hci_cb_list_lock);
2049
2050 if (conn->security_cfm_cb)
2051 conn->security_cfm_cb(conn, status);
2052}
2053
2054static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2055{
2056 struct hci_cb *cb;
2057
2058 mutex_lock(&hci_cb_list_lock);
2059 list_for_each_entry(cb, &hci_cb_list, list) {
2060 if (cb->key_change_cfm)
2061 cb->key_change_cfm(conn, status);
2062 }
2063 mutex_unlock(&hci_cb_list_lock);
2064}
2065
2066static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2067 __u8 role)
2068{
2069 struct hci_cb *cb;
2070
2071 mutex_lock(&hci_cb_list_lock);
2072 list_for_each_entry(cb, &hci_cb_list, list) {
2073 if (cb->role_switch_cfm)
2074 cb->role_switch_cfm(conn, status, role);
2075 }
2076 mutex_unlock(&hci_cb_list_lock);
2077}
2078
2079static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2080{
2081 if (addr_type != ADDR_LE_DEV_RANDOM)
2082 return false;
2083
2084 if ((bdaddr->b[5] & 0xc0) == 0x40)
2085 return true;
2086
2087 return false;
2088}
2089
2090static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2091{
2092 if (addr_type == ADDR_LE_DEV_PUBLIC)
2093 return true;
2094
2095 /* Check for Random Static address type */
2096 if ((addr->b[5] & 0xc0) == 0xc0)
2097 return true;
2098
2099 return false;
2100}
2101
2102static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2103 bdaddr_t *bdaddr, u8 addr_type)
2104{
2105 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2106 return NULL;
2107
2108 return hci_find_irk_by_rpa(hdev, bdaddr);
2109}
2110
2111static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2112 u16 to_multiplier)
2113{
2114 u16 max_latency;
2115
2116 if (min > max || min < 6 || max > 3200)
2117 return -EINVAL;
2118
2119 if (to_multiplier < 10 || to_multiplier > 3200)
2120 return -EINVAL;
2121
2122 if (max >= to_multiplier * 8)
2123 return -EINVAL;
2124
2125 max_latency = (to_multiplier * 4 / max) - 1;
2126 if (latency > 499 || latency > max_latency)
2127 return -EINVAL;
2128
2129 return 0;
2130}
2131
2132int hci_register_cb(struct hci_cb *hcb);
2133int hci_unregister_cb(struct hci_cb *hcb);
2134
2135int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2136 const void *param);
2137
2138int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2139 const void *param);
2140void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2141void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2142void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2143
2144void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2145void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2146
2147u32 hci_conn_get_phy(struct hci_conn *conn);
2148
2149/* ----- HCI Sockets ----- */
2150void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2151void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2152 int flag, struct sock *skip_sk);
2153void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2154void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2155 void *data, u16 data_len, ktime_t tstamp,
2156 int flag, struct sock *skip_sk);
2157
2158void hci_sock_dev_event(struct hci_dev *hdev, int event);
2159
2160#define HCI_MGMT_VAR_LEN BIT(0)
2161#define HCI_MGMT_NO_HDEV BIT(1)
2162#define HCI_MGMT_UNTRUSTED BIT(2)
2163#define HCI_MGMT_UNCONFIGURED BIT(3)
2164#define HCI_MGMT_HDEV_OPTIONAL BIT(4)
2165
2166struct hci_mgmt_handler {
2167 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2168 u16 data_len);
2169 size_t data_len;
2170 unsigned long flags;
2171};
2172
2173struct hci_mgmt_chan {
2174 struct list_head list;
2175 unsigned short channel;
2176 size_t handler_count;
2177 const struct hci_mgmt_handler *handlers;
2178 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2179};
2180
2181int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2182void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2183
2184/* Management interface */
2185#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
2186#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
2187 BIT(BDADDR_LE_RANDOM))
2188#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
2189 BIT(BDADDR_LE_PUBLIC) | \
2190 BIT(BDADDR_LE_RANDOM))
2191
2192/* These LE scan and inquiry parameters were chosen according to LE General
2193 * Discovery Procedure specification.
2194 */
2195#define DISCOV_LE_SCAN_WIN 0x12
2196#define DISCOV_LE_SCAN_INT 0x12
2197#define DISCOV_LE_TIMEOUT 10240 /* msec */
2198#define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
2199#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
2200#define DISCOV_BREDR_INQUIRY_LEN 0x08
2201#define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
2202#define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */
2203#define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */
2204#define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */
2205#define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */
2206#define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */
2207#define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */
2208#define INTERVAL_TO_MS(x) (((x) * 10) / 0x10)
2209
2210#define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */
2211
2212void mgmt_fill_version_info(void *ver);
2213int mgmt_new_settings(struct hci_dev *hdev);
2214void mgmt_index_added(struct hci_dev *hdev);
2215void mgmt_index_removed(struct hci_dev *hdev);
2216void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2217void mgmt_power_on(struct hci_dev *hdev, int err);
2218void __mgmt_power_off(struct hci_dev *hdev);
2219void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2220 bool persistent);
2221void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2222 u8 *name, u8 name_len);
2223void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2224 u8 link_type, u8 addr_type, u8 reason,
2225 bool mgmt_connected);
2226void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2227 u8 link_type, u8 addr_type, u8 status);
2228void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2229 u8 addr_type, u8 status);
2230void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2231void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2232 u8 status);
2233void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2234 u8 status);
2235int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2236 u8 link_type, u8 addr_type, u32 value,
2237 u8 confirm_hint);
2238int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2239 u8 link_type, u8 addr_type, u8 status);
2240int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2241 u8 link_type, u8 addr_type, u8 status);
2242int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2243 u8 link_type, u8 addr_type);
2244int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2245 u8 link_type, u8 addr_type, u8 status);
2246int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2247 u8 link_type, u8 addr_type, u8 status);
2248int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2249 u8 link_type, u8 addr_type, u32 passkey,
2250 u8 entered);
2251void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2252void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2253void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2254 u8 status);
2255void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2256void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2257void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2258void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2259 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2260 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2261 u64 instant);
2262void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2263 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2264void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2265void mgmt_suspending(struct hci_dev *hdev, u8 state);
2266void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2267 u8 addr_type);
2268bool mgmt_powering_down(struct hci_dev *hdev);
2269void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2270void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2271void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2272 bool persistent);
2273void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2274 u8 bdaddr_type, u8 store_hint, u16 min_interval,
2275 u16 max_interval, u16 latency, u16 timeout);
2276void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2277bool mgmt_get_connectable(struct hci_dev *hdev);
2278u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2279void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2280 u8 instance);
2281void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2282 u8 instance);
2283void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2284int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2285void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2286 bdaddr_t *bdaddr, u8 addr_type);
2287
2288int hci_abort_conn(struct hci_conn *conn, u8 reason);
2289u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2290 u16 to_multiplier);
2291void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2292 __u8 ltk[16], __u8 key_size);
2293
2294void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2295 u8 *bdaddr_type);
2296
2297#define SCO_AIRMODE_MASK 0x0003
2298#define SCO_AIRMODE_CVSD 0x0000
2299#define SCO_AIRMODE_TRANSP 0x0003
2300
2301#define LOCAL_CODEC_ACL_MASK BIT(0)
2302#define LOCAL_CODEC_SCO_MASK BIT(1)
2303
2304#define TRANSPORT_TYPE_MAX 0x04
2305
2306#endif /* __HCI_CORE_H */