2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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;
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.
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.
28 #include <linux/leds.h>
29 #include <net/bluetooth/hci.h>
30 #include <net/bluetooth/hci_sock.h>
33 #define HCI_PRIO_MAX 7
35 /* HCI maximum id value */
36 #define HCI_MAX_ID 10000
38 /* HCI Core structures */
42 __u8 pscan_period_mode;
50 struct inquiry_entry {
51 struct list_head all; /* inq_cache.all */
52 struct list_head list; /* unknown or resolve */
60 struct inquiry_data data;
63 struct discovery_state {
72 struct list_head all; /* All devices found during inquiry */
73 struct list_head unknown; /* Name state not known */
74 struct list_head resolve; /* Name needs to be resolved */
76 bdaddr_t last_adv_addr;
77 u8 last_adv_addr_type;
80 u8 last_adv_data[HCI_MAX_AD_LENGTH];
82 bool report_invalid_rssi;
83 bool result_filtering;
88 unsigned long scan_start;
89 unsigned long scan_duration;
92 struct hci_conn_hash {
93 struct list_head list;
98 unsigned int le_num_slave;
102 struct list_head list;
108 struct list_head list;
122 struct list_head list;
135 struct list_head list;
144 struct list_head list;
148 u8 val[HCI_LINK_KEY_SIZE];
153 struct list_head list;
164 struct list_head list;
169 __u16 remaining_time;
172 __u8 adv_data[HCI_MAX_AD_LENGTH];
174 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
177 #define HCI_MAX_ADV_INSTANCES 5
178 #define HCI_DEFAULT_ADV_DURATION 2
180 #define HCI_MAX_SHORT_NAME_LENGTH 10
182 /* Min encryption key size to match with SMP */
183 #define HCI_MIN_ENC_KEY_SIZE 7
185 /* Default LE RPA expiry time, 15 minutes */
186 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
188 /* Default min/max age of connection information (1s/3s) */
189 #define DEFAULT_CONN_INFO_MIN_AGE 1000
190 #define DEFAULT_CONN_INFO_MAX_AGE 3000
197 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
200 #define HCI_MAX_PAGES 3
203 struct list_head list;
213 bdaddr_t public_addr;
214 bdaddr_t random_addr;
215 bdaddr_t static_addr;
217 __u8 dev_name[HCI_MAX_NAME_LENGTH];
218 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
219 __u8 eir[HCI_MAX_EIR_LENGTH];
225 __u8 features[HCI_MAX_PAGES][8];
227 __u8 le_white_list_size;
237 __u8 stored_max_keys;
238 __u8 stored_num_keys;
241 __u16 page_scan_interval;
242 __u16 page_scan_window;
244 __u8 le_adv_channel_map;
245 __u16 le_adv_min_interval;
246 __u16 le_adv_max_interval;
248 __u16 le_scan_interval;
249 __u16 le_scan_window;
250 __u16 le_conn_min_interval;
251 __u16 le_conn_max_interval;
252 __u16 le_conn_latency;
253 __u16 le_supv_timeout;
255 __u16 le_def_tx_time;
257 __u16 le_max_tx_time;
259 __u16 le_max_rx_time;
260 __u16 discov_interleaved_timeout;
261 __u16 conn_info_min_age;
262 __u16 conn_info_max_age;
278 __u16 sniff_min_interval;
279 __u16 sniff_max_interval;
284 __u32 amp_min_latency;
288 __u16 amp_assoc_size;
289 __u32 amp_max_flush_to;
290 __u32 amp_be_flush_to;
292 struct amp_assoc loc_assoc;
296 unsigned int auto_accept_delay;
298 unsigned long quirks;
301 unsigned int acl_cnt;
302 unsigned int sco_cnt;
305 unsigned int acl_mtu;
306 unsigned int sco_mtu;
308 unsigned int acl_pkts;
309 unsigned int sco_pkts;
310 unsigned int le_pkts;
317 unsigned long acl_last_tx;
318 unsigned long sco_last_tx;
319 unsigned long le_last_tx;
321 struct workqueue_struct *workqueue;
322 struct workqueue_struct *req_workqueue;
324 struct work_struct power_on;
325 struct delayed_work power_off;
326 struct work_struct error_reset;
328 __u16 discov_timeout;
329 struct delayed_work discov_off;
331 struct delayed_work service_cache;
333 struct delayed_work cmd_timer;
335 struct work_struct rx_work;
336 struct work_struct cmd_work;
337 struct work_struct tx_work;
339 struct work_struct discov_update;
340 struct work_struct bg_scan_update;
341 struct work_struct scan_update;
342 struct work_struct connectable_update;
343 struct work_struct discoverable_update;
344 struct delayed_work le_scan_disable;
345 struct delayed_work le_scan_restart;
347 struct sk_buff_head rx_q;
348 struct sk_buff_head raw_q;
349 struct sk_buff_head cmd_q;
351 struct sk_buff *sent_cmd;
353 struct mutex req_lock;
354 wait_queue_head_t req_wait_q;
357 struct sk_buff *req_skb;
360 void *smp_bredr_data;
362 struct discovery_state discovery;
363 struct hci_conn_hash conn_hash;
365 struct list_head mgmt_pending;
366 struct list_head blacklist;
367 struct list_head whitelist;
368 struct list_head uuids;
369 struct list_head link_keys;
370 struct list_head long_term_keys;
371 struct list_head identity_resolving_keys;
372 struct list_head remote_oob_data;
373 struct list_head le_white_list;
374 struct list_head le_conn_params;
375 struct list_head pend_le_conns;
376 struct list_head pend_le_reports;
378 struct hci_dev_stats stat;
384 struct dentry *debugfs;
388 struct rfkill *rfkill;
390 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
393 __u8 adv_data[HCI_MAX_AD_LENGTH];
395 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
396 __u8 scan_rsp_data_len;
398 struct list_head adv_instances;
399 unsigned int adv_instance_cnt;
400 __u8 cur_adv_instance;
401 __u16 adv_instance_timeout;
402 struct delayed_work adv_instance_expire;
406 struct delayed_work rpa_expired;
409 #if IS_ENABLED(CONFIG_BT_LEDS)
410 struct led_trigger *power_led;
413 int (*open)(struct hci_dev *hdev);
414 int (*close)(struct hci_dev *hdev);
415 int (*flush)(struct hci_dev *hdev);
416 int (*setup)(struct hci_dev *hdev);
417 int (*shutdown)(struct hci_dev *hdev);
418 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
419 void (*notify)(struct hci_dev *hdev, unsigned int evt);
420 void (*hw_error)(struct hci_dev *hdev, u8 code);
421 int (*post_init)(struct hci_dev *hdev);
422 int (*set_diag)(struct hci_dev *hdev, bool enable);
423 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
426 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
429 struct list_head list;
449 __u8 features[HCI_MAX_PAGES][8];
455 __u8 pending_sec_level;
459 __u32 passkey_notify;
460 __u8 passkey_entered;
464 __u16 le_conn_min_interval;
465 __u16 le_conn_max_interval;
466 __u16 le_conn_interval;
467 __u16 le_conn_latency;
468 __u16 le_supv_timeout;
469 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
470 __u8 le_adv_data_len;
477 __u16 clock_accuracy;
479 unsigned long conn_info_timestamp;
487 struct sk_buff_head data_q;
488 struct list_head chan_list;
490 struct delayed_work disc_work;
491 struct delayed_work auto_accept_work;
492 struct delayed_work idle_work;
493 struct delayed_work le_conn_timeout;
494 struct work_struct le_scan_cleanup;
497 struct dentry *debugfs;
499 struct hci_dev *hdev;
502 struct amp_mgr *amp_mgr;
504 struct hci_conn *link;
506 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
507 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
508 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
512 struct list_head list;
514 struct hci_conn *conn;
515 struct sk_buff_head data_q;
521 struct hci_conn_params {
522 struct list_head list;
523 struct list_head action;
528 u16 conn_min_interval;
529 u16 conn_max_interval;
531 u16 supervision_timeout;
534 HCI_AUTO_CONN_DISABLED,
535 HCI_AUTO_CONN_REPORT,
536 HCI_AUTO_CONN_DIRECT,
537 HCI_AUTO_CONN_ALWAYS,
538 HCI_AUTO_CONN_LINK_LOSS,
539 HCI_AUTO_CONN_EXPLICIT,
542 struct hci_conn *conn;
543 bool explicit_connect;
546 extern struct list_head hci_dev_list;
547 extern struct list_head hci_cb_list;
548 extern rwlock_t hci_dev_list_lock;
549 extern struct mutex hci_cb_list_lock;
551 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags)
552 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags)
553 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags)
554 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags)
555 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags)
556 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags)
557 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
559 #define hci_dev_clear_volatile_flags(hdev) \
561 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \
562 hci_dev_clear_flag(hdev, HCI_LE_ADV); \
563 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \
566 /* ----- HCI interface to upper protocols ----- */
567 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
568 int l2cap_disconn_ind(struct hci_conn *hcon);
569 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
571 #if IS_ENABLED(CONFIG_BT_BREDR)
572 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
573 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
575 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
581 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
586 /* ----- Inquiry cache ----- */
587 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
588 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
590 static inline void discovery_init(struct hci_dev *hdev)
592 hdev->discovery.state = DISCOVERY_STOPPED;
593 INIT_LIST_HEAD(&hdev->discovery.all);
594 INIT_LIST_HEAD(&hdev->discovery.unknown);
595 INIT_LIST_HEAD(&hdev->discovery.resolve);
596 hdev->discovery.report_invalid_rssi = true;
597 hdev->discovery.rssi = HCI_RSSI_INVALID;
600 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
602 hdev->discovery.result_filtering = false;
603 hdev->discovery.report_invalid_rssi = true;
604 hdev->discovery.rssi = HCI_RSSI_INVALID;
605 hdev->discovery.uuid_count = 0;
606 kfree(hdev->discovery.uuids);
607 hdev->discovery.uuids = NULL;
608 hdev->discovery.scan_start = 0;
609 hdev->discovery.scan_duration = 0;
612 bool hci_discovery_active(struct hci_dev *hdev);
614 void hci_discovery_set_state(struct hci_dev *hdev, int state);
616 static inline int inquiry_cache_empty(struct hci_dev *hdev)
618 return list_empty(&hdev->discovery.all);
621 static inline long inquiry_cache_age(struct hci_dev *hdev)
623 struct discovery_state *c = &hdev->discovery;
624 return jiffies - c->timestamp;
627 static inline long inquiry_entry_age(struct inquiry_entry *e)
629 return jiffies - e->timestamp;
632 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
634 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
636 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
639 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
640 struct inquiry_entry *ie);
641 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
643 void hci_inquiry_cache_flush(struct hci_dev *hdev);
645 /* ----- HCI Connections ----- */
648 HCI_CONN_REAUTH_PEND,
649 HCI_CONN_ENCRYPT_PEND,
650 HCI_CONN_RSWITCH_PEND,
651 HCI_CONN_MODE_CHANGE_PEND,
652 HCI_CONN_SCO_SETUP_PEND,
653 HCI_CONN_MGMT_CONNECTED,
654 HCI_CONN_SSP_ENABLED,
663 HCI_CONN_STK_ENCRYPT,
664 HCI_CONN_AUTH_INITIATOR,
666 HCI_CONN_PARAM_REMOVAL_PEND,
667 HCI_CONN_NEW_LINK_KEY,
669 HCI_CONN_AUTH_FAILURE,
672 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
674 struct hci_dev *hdev = conn->hdev;
675 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
676 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
679 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
681 struct hci_dev *hdev = conn->hdev;
682 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
683 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
686 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
688 struct hci_conn_hash *h = &hdev->conn_hash;
689 list_add_rcu(&c->list, &h->list);
699 if (c->role == HCI_ROLE_SLAVE)
709 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
711 struct hci_conn_hash *h = &hdev->conn_hash;
713 list_del_rcu(&c->list);
725 if (c->role == HCI_ROLE_SLAVE)
735 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
737 struct hci_conn_hash *h = &hdev->conn_hash;
753 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
755 struct hci_conn_hash *c = &hdev->conn_hash;
757 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
760 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
762 struct hci_conn_hash *h = &hdev->conn_hash;
764 __u8 type = INVALID_LINK;
768 list_for_each_entry_rcu(c, &h->list, list) {
769 if (c->handle == handle) {
780 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
783 struct hci_conn_hash *h = &hdev->conn_hash;
788 list_for_each_entry_rcu(c, &h->list, list) {
789 if (c->handle == handle) {
799 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
800 __u8 type, bdaddr_t *ba)
802 struct hci_conn_hash *h = &hdev->conn_hash;
807 list_for_each_entry_rcu(c, &h->list, list) {
808 if (c->type == type && !bacmp(&c->dst, ba)) {
819 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
823 struct hci_conn_hash *h = &hdev->conn_hash;
828 list_for_each_entry_rcu(c, &h->list, list) {
829 if (c->type != LE_LINK)
832 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
843 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
844 __u8 type, __u16 state)
846 struct hci_conn_hash *h = &hdev->conn_hash;
851 list_for_each_entry_rcu(c, &h->list, list) {
852 if (c->type == type && c->state == state) {
863 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
865 struct hci_conn_hash *h = &hdev->conn_hash;
870 list_for_each_entry_rcu(c, &h->list, list) {
871 if (c->type == LE_LINK && c->state == BT_CONNECT &&
872 !test_bit(HCI_CONN_SCANNING, &c->flags)) {
883 int hci_disconnect(struct hci_conn *conn, __u8 reason);
884 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
885 void hci_sco_setup(struct hci_conn *conn, __u8 status);
887 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
889 int hci_conn_del(struct hci_conn *conn);
890 void hci_conn_hash_flush(struct hci_dev *hdev);
891 void hci_conn_check_pending(struct hci_dev *hdev);
893 struct hci_chan *hci_chan_create(struct hci_conn *conn);
894 void hci_chan_del(struct hci_chan *chan);
895 void hci_chan_list_flush(struct hci_conn *conn);
896 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
898 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
899 u8 dst_type, u8 sec_level,
901 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
902 u8 dst_type, u8 sec_level, u16 conn_timeout,
903 u8 role, bdaddr_t *direct_rpa);
904 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
905 u8 sec_level, u8 auth_type);
906 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
908 int hci_conn_check_link_mode(struct hci_conn *conn);
909 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
910 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
912 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
914 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
916 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
919 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
920 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
921 * working or anything else. They just guarantee that the object is available
922 * and can be dereferenced. So you can use its locks, local variables and any
923 * other constant data.
924 * Before accessing runtime data, you _must_ lock the object and then check that
925 * it is still running. As soon as you release the locks, the connection might
926 * get dropped, though.
928 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
929 * how long the underlying connection is held. So every channel that runs on the
930 * hci_conn object calls this to prevent the connection from disappearing. As
931 * long as you hold a device, you must also guarantee that you have a valid
932 * reference to the device via hci_conn_get() (or the initial reference from
934 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
935 * break because nobody cares for that. But this means, we cannot use
936 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
939 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
941 get_device(&conn->dev);
945 static inline void hci_conn_put(struct hci_conn *conn)
947 put_device(&conn->dev);
950 static inline void hci_conn_hold(struct hci_conn *conn)
952 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
954 atomic_inc(&conn->refcnt);
955 cancel_delayed_work(&conn->disc_work);
958 static inline void hci_conn_drop(struct hci_conn *conn)
960 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
962 if (atomic_dec_and_test(&conn->refcnt)) {
965 switch (conn->type) {
968 cancel_delayed_work(&conn->idle_work);
969 if (conn->state == BT_CONNECTED) {
970 timeo = conn->disc_timeout;
979 timeo = conn->disc_timeout;
987 cancel_delayed_work(&conn->disc_work);
988 queue_delayed_work(conn->hdev->workqueue,
989 &conn->disc_work, timeo);
993 /* ----- HCI Devices ----- */
994 static inline void hci_dev_put(struct hci_dev *d)
996 BT_DBG("%s orig refcnt %d", d->name,
997 atomic_read(&d->dev.kobj.kref.refcount));
1002 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1004 BT_DBG("%s orig refcnt %d", d->name,
1005 atomic_read(&d->dev.kobj.kref.refcount));
1007 get_device(&d->dev);
1011 #define hci_dev_lock(d) mutex_lock(&d->lock)
1012 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
1014 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1015 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1017 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1019 return dev_get_drvdata(&hdev->dev);
1022 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1024 dev_set_drvdata(&hdev->dev, data);
1027 struct hci_dev *hci_dev_get(int index);
1028 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1030 struct hci_dev *hci_alloc_dev(void);
1031 void hci_free_dev(struct hci_dev *hdev);
1032 int hci_register_dev(struct hci_dev *hdev);
1033 void hci_unregister_dev(struct hci_dev *hdev);
1034 void hci_cleanup_dev(struct hci_dev *hdev);
1035 int hci_suspend_dev(struct hci_dev *hdev);
1036 int hci_resume_dev(struct hci_dev *hdev);
1037 int hci_reset_dev(struct hci_dev *hdev);
1038 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1039 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1040 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1041 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1042 int hci_dev_open(__u16 dev);
1043 int hci_dev_close(__u16 dev);
1044 int hci_dev_do_close(struct hci_dev *hdev);
1045 int hci_dev_reset(__u16 dev);
1046 int hci_dev_reset_stat(__u16 dev);
1047 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1048 int hci_get_dev_list(void __user *arg);
1049 int hci_get_dev_info(void __user *arg);
1050 int hci_get_conn_list(void __user *arg);
1051 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1052 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1053 int hci_inquiry(void __user *arg);
1055 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1056 bdaddr_t *bdaddr, u8 type);
1057 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1058 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1059 void hci_bdaddr_list_clear(struct list_head *list);
1061 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1062 bdaddr_t *addr, u8 addr_type);
1063 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1064 bdaddr_t *addr, u8 addr_type);
1065 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1066 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1068 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1072 void hci_uuids_clear(struct hci_dev *hdev);
1074 void hci_link_keys_clear(struct hci_dev *hdev);
1075 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1076 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1077 bdaddr_t *bdaddr, u8 *val, u8 type,
1078 u8 pin_len, bool *persistent);
1079 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1080 u8 addr_type, u8 type, u8 authenticated,
1081 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1082 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1083 u8 addr_type, u8 role);
1084 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1085 void hci_smp_ltks_clear(struct hci_dev *hdev);
1086 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1088 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1089 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1091 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1092 u8 addr_type, u8 val[16], bdaddr_t *rpa);
1093 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1094 void hci_smp_irks_clear(struct hci_dev *hdev);
1096 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1098 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1099 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1100 bdaddr_t *bdaddr, u8 bdaddr_type);
1101 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1102 u8 bdaddr_type, u8 *hash192, u8 *rand192,
1103 u8 *hash256, u8 *rand256);
1104 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1107 void hci_adv_instances_clear(struct hci_dev *hdev);
1108 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1109 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1110 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1111 u16 adv_data_len, u8 *adv_data,
1112 u16 scan_rsp_len, u8 *scan_rsp_data,
1113 u16 timeout, u16 duration);
1114 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1116 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1118 void hci_init_sysfs(struct hci_dev *hdev);
1119 void hci_conn_init_sysfs(struct hci_conn *conn);
1120 void hci_conn_add_sysfs(struct hci_conn *conn);
1121 void hci_conn_del_sysfs(struct hci_conn *conn);
1123 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1125 /* ----- LMP capabilities ----- */
1126 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
1127 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
1128 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
1129 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
1130 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
1131 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1132 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1133 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1134 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1135 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1136 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1137 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1138 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1139 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1140 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1141 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1142 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1143 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1144 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1146 /* ----- Extended LMP capabilities ----- */
1147 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1148 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1149 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1150 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1151 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1152 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1154 /* ----- Host capabilities ----- */
1155 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1156 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1157 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1158 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1160 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \
1161 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1162 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1163 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1165 /* ----- HCI protocols ----- */
1166 #define HCI_PROTO_DEFER 0x01
1168 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1169 __u8 type, __u8 *flags)
1173 return l2cap_connect_ind(hdev, bdaddr);
1177 return sco_connect_ind(hdev, bdaddr, flags);
1180 BT_ERR("unknown link type %d", type);
1185 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1187 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1188 return HCI_ERROR_REMOTE_USER_TERM;
1190 return l2cap_disconn_ind(conn);
1193 /* ----- HCI callbacks ----- */
1195 struct list_head list;
1199 void (*connect_cfm) (struct hci_conn *conn, __u8 status);
1200 void (*disconn_cfm) (struct hci_conn *conn, __u8 status);
1201 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1203 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1204 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1207 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1211 mutex_lock(&hci_cb_list_lock);
1212 list_for_each_entry(cb, &hci_cb_list, list) {
1213 if (cb->connect_cfm)
1214 cb->connect_cfm(conn, status);
1216 mutex_unlock(&hci_cb_list_lock);
1218 if (conn->connect_cfm_cb)
1219 conn->connect_cfm_cb(conn, status);
1222 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1226 mutex_lock(&hci_cb_list_lock);
1227 list_for_each_entry(cb, &hci_cb_list, list) {
1228 if (cb->disconn_cfm)
1229 cb->disconn_cfm(conn, reason);
1231 mutex_unlock(&hci_cb_list_lock);
1233 if (conn->disconn_cfm_cb)
1234 conn->disconn_cfm_cb(conn, reason);
1237 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1242 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1245 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1247 mutex_lock(&hci_cb_list_lock);
1248 list_for_each_entry(cb, &hci_cb_list, list) {
1249 if (cb->security_cfm)
1250 cb->security_cfm(conn, status, encrypt);
1252 mutex_unlock(&hci_cb_list_lock);
1254 if (conn->security_cfm_cb)
1255 conn->security_cfm_cb(conn, status);
1258 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1263 if (conn->state == BT_CONFIG) {
1265 conn->state = BT_CONNECTED;
1267 hci_connect_cfm(conn, status);
1268 hci_conn_drop(conn);
1272 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1274 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1280 if (conn->sec_level == BT_SECURITY_SDP)
1281 conn->sec_level = BT_SECURITY_LOW;
1283 if (conn->pending_sec_level > conn->sec_level)
1284 conn->sec_level = conn->pending_sec_level;
1287 mutex_lock(&hci_cb_list_lock);
1288 list_for_each_entry(cb, &hci_cb_list, list) {
1289 if (cb->security_cfm)
1290 cb->security_cfm(conn, status, encrypt);
1292 mutex_unlock(&hci_cb_list_lock);
1294 if (conn->security_cfm_cb)
1295 conn->security_cfm_cb(conn, status);
1298 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1302 mutex_lock(&hci_cb_list_lock);
1303 list_for_each_entry(cb, &hci_cb_list, list) {
1304 if (cb->key_change_cfm)
1305 cb->key_change_cfm(conn, status);
1307 mutex_unlock(&hci_cb_list_lock);
1310 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1315 mutex_lock(&hci_cb_list_lock);
1316 list_for_each_entry(cb, &hci_cb_list, list) {
1317 if (cb->role_switch_cfm)
1318 cb->role_switch_cfm(conn, status, role);
1320 mutex_unlock(&hci_cb_list_lock);
1323 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1331 while (parsed < eir_len - 1) {
1332 u8 field_len = eir[0];
1337 parsed += field_len + 1;
1339 if (parsed > eir_len)
1342 if (eir[1] != type) {
1343 eir += field_len + 1;
1347 /* Zero length data */
1352 *data_len = field_len - 1;
1360 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1362 if (addr_type != ADDR_LE_DEV_RANDOM)
1365 if ((bdaddr->b[5] & 0xc0) == 0x40)
1371 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1373 if (addr_type == ADDR_LE_DEV_PUBLIC)
1376 /* Check for Random Static address type */
1377 if ((addr->b[5] & 0xc0) == 0xc0)
1383 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1384 bdaddr_t *bdaddr, u8 addr_type)
1386 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1389 return hci_find_irk_by_rpa(hdev, bdaddr);
1392 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1397 if (min > max || min < 6 || max > 3200)
1400 if (to_multiplier < 10 || to_multiplier > 3200)
1403 if (max >= to_multiplier * 8)
1406 max_latency = (to_multiplier * 4 / max) - 1;
1407 if (latency > 499 || latency > max_latency)
1413 int hci_register_cb(struct hci_cb *hcb);
1414 int hci_unregister_cb(struct hci_cb *hcb);
1416 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1417 const void *param, u32 timeout);
1418 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1419 const void *param, u8 event, u32 timeout);
1421 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1423 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1424 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1426 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1428 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1429 const void *param, u32 timeout);
1431 /* ----- HCI Sockets ----- */
1432 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1433 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1434 int flag, struct sock *skip_sk);
1435 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1436 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1437 void *data, u16 data_len, ktime_t tstamp,
1438 int flag, struct sock *skip_sk);
1440 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1442 #define HCI_MGMT_VAR_LEN BIT(0)
1443 #define HCI_MGMT_NO_HDEV BIT(1)
1444 #define HCI_MGMT_UNTRUSTED BIT(2)
1445 #define HCI_MGMT_UNCONFIGURED BIT(3)
1447 struct hci_mgmt_handler {
1448 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1451 unsigned long flags;
1454 struct hci_mgmt_chan {
1455 struct list_head list;
1456 unsigned short channel;
1457 size_t handler_count;
1458 const struct hci_mgmt_handler *handlers;
1459 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1462 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1463 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1465 /* Management interface */
1466 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1467 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1468 BIT(BDADDR_LE_RANDOM))
1469 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1470 BIT(BDADDR_LE_PUBLIC) | \
1471 BIT(BDADDR_LE_RANDOM))
1473 /* These LE scan and inquiry parameters were chosen according to LE General
1474 * Discovery Procedure specification.
1476 #define DISCOV_LE_SCAN_WIN 0x12
1477 #define DISCOV_LE_SCAN_INT 0x12
1478 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1479 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1480 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1481 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1482 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1484 void mgmt_fill_version_info(void *ver);
1485 int mgmt_new_settings(struct hci_dev *hdev);
1486 void mgmt_index_added(struct hci_dev *hdev);
1487 void mgmt_index_removed(struct hci_dev *hdev);
1488 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1489 void mgmt_power_on(struct hci_dev *hdev, int err);
1490 void __mgmt_power_off(struct hci_dev *hdev);
1491 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1493 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1494 u32 flags, u8 *name, u8 name_len);
1495 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1496 u8 link_type, u8 addr_type, u8 reason,
1497 bool mgmt_connected);
1498 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1499 u8 link_type, u8 addr_type, u8 status);
1500 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1501 u8 addr_type, u8 status);
1502 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1503 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1505 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1507 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1508 u8 link_type, u8 addr_type, u32 value,
1510 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1511 u8 link_type, u8 addr_type, u8 status);
1512 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1513 u8 link_type, u8 addr_type, u8 status);
1514 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1515 u8 link_type, u8 addr_type);
1516 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1517 u8 link_type, u8 addr_type, u8 status);
1518 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1519 u8 link_type, u8 addr_type, u8 status);
1520 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1521 u8 link_type, u8 addr_type, u32 passkey,
1523 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1524 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1525 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1526 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1528 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1529 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1530 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1531 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1532 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1533 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1534 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1535 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1536 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1537 bool mgmt_powering_down(struct hci_dev *hdev);
1538 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1539 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1540 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1542 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1543 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1544 u16 max_interval, u16 latency, u16 timeout);
1545 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1546 bool mgmt_get_connectable(struct hci_dev *hdev);
1547 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1548 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1549 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1550 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1552 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1555 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1557 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1558 __u8 ltk[16], __u8 key_size);
1560 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1563 #define SCO_AIRMODE_MASK 0x0003
1564 #define SCO_AIRMODE_CVSD 0x0000
1565 #define SCO_AIRMODE_TRANSP 0x0003
1567 #endif /* __HCI_CORE_H */