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 <net/bluetooth/hci.h>
31 #define HCI_PRIO_MAX 7
33 /* HCI Core structures */
37 __u8 pscan_period_mode
;
45 struct inquiry_entry
{
46 struct list_head all
; /* inq_cache.all */
47 struct list_head list
; /* unknown or resolve */
55 struct inquiry_data data
;
58 struct discovery_state
{
67 struct list_head all
; /* All devices found during inquiry */
68 struct list_head unknown
; /* Name state not known */
69 struct list_head resolve
; /* Name needs to be resolved */
73 struct hci_conn_hash
{
74 struct list_head list
;
81 struct list_head list
;
86 struct list_head list
;
92 struct list_head list
;
104 struct list_head list
;
107 u8 val
[HCI_LINK_KEY_SIZE
];
112 struct list_head list
;
118 struct le_scan_params
{
125 #define HCI_MAX_SHORT_NAME_LENGTH 10
130 __u8 data
[HCI_MAX_AMP_ASSOC_SIZE
];
133 #define NUM_REASSEMBLY 4
135 struct list_head list
;
144 __u8 dev_name
[HCI_MAX_NAME_LENGTH
];
145 __u8 short_name
[HCI_MAX_SHORT_NAME_LENGTH
];
146 __u8 eir
[HCI_MAX_EIR_LENGTH
];
151 __u8 host_features
[8];
172 __u16 sniff_min_interval
;
173 __u16 sniff_max_interval
;
178 __u32 amp_min_latency
;
182 __u16 amp_assoc_size
;
183 __u32 amp_max_flush_to
;
184 __u32 amp_be_flush_to
;
186 struct amp_assoc loc_assoc
;
190 unsigned int auto_accept_delay
;
192 unsigned long quirks
;
195 unsigned int acl_cnt
;
196 unsigned int sco_cnt
;
199 unsigned int acl_mtu
;
200 unsigned int sco_mtu
;
202 unsigned int acl_pkts
;
203 unsigned int sco_pkts
;
204 unsigned int le_pkts
;
211 unsigned long acl_last_tx
;
212 unsigned long sco_last_tx
;
213 unsigned long le_last_tx
;
215 struct workqueue_struct
*workqueue
;
217 struct work_struct power_on
;
218 struct delayed_work power_off
;
220 __u16 discov_timeout
;
221 struct delayed_work discov_off
;
223 struct delayed_work service_cache
;
225 struct timer_list cmd_timer
;
227 struct work_struct rx_work
;
228 struct work_struct cmd_work
;
229 struct work_struct tx_work
;
231 struct sk_buff_head rx_q
;
232 struct sk_buff_head raw_q
;
233 struct sk_buff_head cmd_q
;
235 struct sk_buff
*sent_cmd
;
236 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
238 struct mutex req_lock
;
239 wait_queue_head_t req_wait_q
;
245 struct list_head mgmt_pending
;
247 struct discovery_state discovery
;
248 struct hci_conn_hash conn_hash
;
249 struct list_head blacklist
;
251 struct list_head uuids
;
253 struct list_head link_keys
;
255 struct list_head long_term_keys
;
257 struct list_head remote_oob_data
;
259 struct hci_dev_stats stat
;
261 struct sk_buff_head driver_init
;
267 struct dentry
*debugfs
;
271 struct rfkill
*rfkill
;
273 unsigned long dev_flags
;
275 struct delayed_work le_scan_disable
;
277 struct work_struct le_scan
;
278 struct le_scan_params le_scan_params
;
280 int (*open
)(struct hci_dev
*hdev
);
281 int (*close
)(struct hci_dev
*hdev
);
282 int (*flush
)(struct hci_dev
*hdev
);
283 int (*send
)(struct sk_buff
*skb
);
284 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
285 int (*ioctl
)(struct hci_dev
*hdev
, unsigned int cmd
, unsigned long arg
);
289 struct list_head list
;
310 __u8 pending_sec_level
;
314 __u32 passkey_notify
;
315 __u8 passkey_entered
;
326 struct sk_buff_head data_q
;
327 struct list_head chan_list
;
329 struct delayed_work disc_work
;
330 struct timer_list idle_timer
;
331 struct timer_list auto_accept_timer
;
336 struct hci_dev
*hdev
;
340 struct amp_mgr
*amp_mgr
;
342 struct hci_conn
*link
;
344 void (*connect_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
345 void (*security_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
346 void (*disconn_cfm_cb
) (struct hci_conn
*conn
, u8 reason
);
350 struct list_head list
;
352 struct hci_conn
*conn
;
353 struct sk_buff_head data_q
;
357 extern struct list_head hci_dev_list
;
358 extern struct list_head hci_cb_list
;
359 extern rwlock_t hci_dev_list_lock
;
360 extern rwlock_t hci_cb_list_lock
;
362 /* ----- HCI interface to upper protocols ----- */
363 extern int l2cap_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
364 extern void l2cap_connect_cfm(struct hci_conn
*hcon
, u8 status
);
365 extern int l2cap_disconn_ind(struct hci_conn
*hcon
);
366 extern void l2cap_disconn_cfm(struct hci_conn
*hcon
, u8 reason
);
367 extern int l2cap_security_cfm(struct hci_conn
*hcon
, u8 status
, u8 encrypt
);
368 extern int l2cap_recv_acldata(struct hci_conn
*hcon
, struct sk_buff
*skb
,
371 extern int sco_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
372 extern void sco_connect_cfm(struct hci_conn
*hcon
, __u8 status
);
373 extern void sco_disconn_cfm(struct hci_conn
*hcon
, __u8 reason
);
374 extern int sco_recv_scodata(struct hci_conn
*hcon
, struct sk_buff
*skb
);
376 /* ----- Inquiry cache ----- */
377 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
378 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
380 static inline void discovery_init(struct hci_dev
*hdev
)
382 hdev
->discovery
.state
= DISCOVERY_STOPPED
;
383 INIT_LIST_HEAD(&hdev
->discovery
.all
);
384 INIT_LIST_HEAD(&hdev
->discovery
.unknown
);
385 INIT_LIST_HEAD(&hdev
->discovery
.resolve
);
388 bool hci_discovery_active(struct hci_dev
*hdev
);
390 void hci_discovery_set_state(struct hci_dev
*hdev
, int state
);
392 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
394 return list_empty(&hdev
->discovery
.all
);
397 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
399 struct discovery_state
*c
= &hdev
->discovery
;
400 return jiffies
- c
->timestamp
;
403 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
405 return jiffies
- e
->timestamp
;
408 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
,
410 struct inquiry_entry
*hci_inquiry_cache_lookup_unknown(struct hci_dev
*hdev
,
412 struct inquiry_entry
*hci_inquiry_cache_lookup_resolve(struct hci_dev
*hdev
,
415 void hci_inquiry_cache_update_resolve(struct hci_dev
*hdev
,
416 struct inquiry_entry
*ie
);
417 bool hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
,
418 bool name_known
, bool *ssp
);
420 /* ----- HCI Connections ----- */
423 HCI_CONN_REAUTH_PEND
,
424 HCI_CONN_ENCRYPT_PEND
,
425 HCI_CONN_RSWITCH_PEND
,
426 HCI_CONN_MODE_CHANGE_PEND
,
427 HCI_CONN_SCO_SETUP_PEND
,
428 HCI_CONN_LE_SMP_PEND
,
429 HCI_CONN_MGMT_CONNECTED
,
430 HCI_CONN_SSP_ENABLED
,
435 static inline bool hci_conn_ssp_enabled(struct hci_conn
*conn
)
437 struct hci_dev
*hdev
= conn
->hdev
;
438 return test_bit(HCI_SSP_ENABLED
, &hdev
->dev_flags
) &&
439 test_bit(HCI_CONN_SSP_ENABLED
, &conn
->flags
);
442 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
444 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
445 list_add_rcu(&c
->list
, &h
->list
);
460 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
462 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
464 list_del_rcu(&c
->list
);
481 static inline unsigned int hci_conn_num(struct hci_dev
*hdev
, __u8 type
)
483 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
497 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
500 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
505 list_for_each_entry_rcu(c
, &h
->list
, list
) {
506 if (c
->handle
== handle
) {
516 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
517 __u8 type
, bdaddr_t
*ba
)
519 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
524 list_for_each_entry_rcu(c
, &h
->list
, list
) {
525 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
)) {
536 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
537 __u8 type
, __u16 state
)
539 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
544 list_for_each_entry_rcu(c
, &h
->list
, list
) {
545 if (c
->type
== type
&& c
->state
== state
) {
556 void hci_acl_disconn(struct hci_conn
*conn
, __u8 reason
);
557 void hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
558 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
560 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
561 int hci_conn_del(struct hci_conn
*conn
);
562 void hci_conn_hash_flush(struct hci_dev
*hdev
);
563 void hci_conn_check_pending(struct hci_dev
*hdev
);
565 struct hci_chan
*hci_chan_create(struct hci_conn
*conn
);
566 void hci_chan_del(struct hci_chan
*chan
);
567 void hci_chan_list_flush(struct hci_conn
*conn
);
569 struct hci_conn
*hci_connect(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
,
570 __u8 dst_type
, __u8 sec_level
, __u8 auth_type
);
571 int hci_conn_check_link_mode(struct hci_conn
*conn
);
572 int hci_conn_check_secure(struct hci_conn
*conn
, __u8 sec_level
);
573 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
574 int hci_conn_change_link_key(struct hci_conn
*conn
);
575 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
577 void hci_conn_enter_active_mode(struct hci_conn
*conn
, __u8 force_active
);
579 void hci_conn_hold_device(struct hci_conn
*conn
);
580 void hci_conn_put_device(struct hci_conn
*conn
);
582 static inline void hci_conn_hold(struct hci_conn
*conn
)
584 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
586 atomic_inc(&conn
->refcnt
);
587 cancel_delayed_work(&conn
->disc_work
);
590 static inline void hci_conn_put(struct hci_conn
*conn
)
592 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
594 if (atomic_dec_and_test(&conn
->refcnt
)) {
596 if (conn
->type
== ACL_LINK
|| conn
->type
== LE_LINK
) {
597 del_timer(&conn
->idle_timer
);
598 if (conn
->state
== BT_CONNECTED
) {
599 timeo
= conn
->disc_timeout
;
603 timeo
= msecs_to_jiffies(10);
606 timeo
= msecs_to_jiffies(10);
608 cancel_delayed_work(&conn
->disc_work
);
609 queue_delayed_work(conn
->hdev
->workqueue
,
610 &conn
->disc_work
, timeo
);
614 /* ----- HCI Devices ----- */
615 static inline void hci_dev_put(struct hci_dev
*d
)
617 BT_DBG("%s orig refcnt %d", d
->name
,
618 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
623 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
625 BT_DBG("%s orig refcnt %d", d
->name
,
626 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
632 #define hci_dev_lock(d) mutex_lock(&d->lock)
633 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
635 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
636 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
638 static inline void *hci_get_drvdata(struct hci_dev
*hdev
)
640 return dev_get_drvdata(&hdev
->dev
);
643 static inline void hci_set_drvdata(struct hci_dev
*hdev
, void *data
)
645 dev_set_drvdata(&hdev
->dev
, data
);
648 /* hci_dev_list shall be locked */
649 static inline uint8_t __hci_num_ctrl(void)
654 list_for_each(p
, &hci_dev_list
) {
661 struct hci_dev
*hci_dev_get(int index
);
662 struct hci_dev
*hci_get_route(bdaddr_t
*src
, bdaddr_t
*dst
);
664 struct hci_dev
*hci_alloc_dev(void);
665 void hci_free_dev(struct hci_dev
*hdev
);
666 int hci_register_dev(struct hci_dev
*hdev
);
667 void hci_unregister_dev(struct hci_dev
*hdev
);
668 int hci_suspend_dev(struct hci_dev
*hdev
);
669 int hci_resume_dev(struct hci_dev
*hdev
);
670 int hci_dev_open(__u16 dev
);
671 int hci_dev_close(__u16 dev
);
672 int hci_dev_reset(__u16 dev
);
673 int hci_dev_reset_stat(__u16 dev
);
674 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
675 int hci_get_dev_list(void __user
*arg
);
676 int hci_get_dev_info(void __user
*arg
);
677 int hci_get_conn_list(void __user
*arg
);
678 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
679 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
680 int hci_inquiry(void __user
*arg
);
682 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
,
684 int hci_blacklist_clear(struct hci_dev
*hdev
);
685 int hci_blacklist_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
686 int hci_blacklist_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
688 int hci_uuids_clear(struct hci_dev
*hdev
);
690 int hci_link_keys_clear(struct hci_dev
*hdev
);
691 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
692 int hci_add_link_key(struct hci_dev
*hdev
, struct hci_conn
*conn
, int new_key
,
693 bdaddr_t
*bdaddr
, u8
*val
, u8 type
, u8 pin_len
);
694 struct smp_ltk
*hci_find_ltk(struct hci_dev
*hdev
, __le16 ediv
, u8 rand
[8]);
695 int hci_add_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 addr_type
, u8 type
,
696 int new_key
, u8 authenticated
, u8 tk
[16], u8 enc_size
,
697 __le16 ediv
, u8 rand
[8]);
698 struct smp_ltk
*hci_find_ltk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
700 int hci_remove_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
701 int hci_smp_ltks_clear(struct hci_dev
*hdev
);
702 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
704 int hci_remote_oob_data_clear(struct hci_dev
*hdev
);
705 struct oob_data
*hci_find_remote_oob_data(struct hci_dev
*hdev
,
707 int hci_add_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8
*hash
,
709 int hci_remove_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
711 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
713 int hci_recv_frame(struct sk_buff
*skb
);
714 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
715 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
717 void hci_init_sysfs(struct hci_dev
*hdev
);
718 int hci_add_sysfs(struct hci_dev
*hdev
);
719 void hci_del_sysfs(struct hci_dev
*hdev
);
720 void hci_conn_init_sysfs(struct hci_conn
*conn
);
721 void hci_conn_add_sysfs(struct hci_conn
*conn
);
722 void hci_conn_del_sysfs(struct hci_conn
*conn
);
724 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
726 /* ----- LMP capabilities ----- */
727 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
728 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
729 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
730 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
731 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
732 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
733 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
734 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
735 #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
737 /* ----- Extended LMP capabilities ----- */
738 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
740 /* ----- HCI protocols ----- */
741 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
746 return l2cap_connect_ind(hdev
, bdaddr
);
750 return sco_connect_ind(hdev
, bdaddr
);
753 BT_ERR("unknown link type %d", type
);
758 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
760 switch (conn
->type
) {
763 l2cap_connect_cfm(conn
, status
);
768 sco_connect_cfm(conn
, status
);
772 BT_ERR("unknown link type %d", conn
->type
);
776 if (conn
->connect_cfm_cb
)
777 conn
->connect_cfm_cb(conn
, status
);
780 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
782 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
783 return HCI_ERROR_REMOTE_USER_TERM
;
785 return l2cap_disconn_ind(conn
);
788 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
790 switch (conn
->type
) {
793 l2cap_disconn_cfm(conn
, reason
);
798 sco_disconn_cfm(conn
, reason
);
802 BT_ERR("unknown link type %d", conn
->type
);
806 if (conn
->disconn_cfm_cb
)
807 conn
->disconn_cfm_cb(conn
, reason
);
810 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
814 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
817 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
820 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
821 l2cap_security_cfm(conn
, status
, encrypt
);
823 if (conn
->security_cfm_cb
)
824 conn
->security_cfm_cb(conn
, status
);
827 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
830 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
833 l2cap_security_cfm(conn
, status
, encrypt
);
835 if (conn
->security_cfm_cb
)
836 conn
->security_cfm_cb(conn
, status
);
839 /* ----- HCI callbacks ----- */
841 struct list_head list
;
845 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
,
847 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
848 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
851 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
856 hci_proto_auth_cfm(conn
, status
);
858 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
861 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
863 read_lock(&hci_cb_list_lock
);
864 list_for_each(p
, &hci_cb_list
) {
865 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
866 if (cb
->security_cfm
)
867 cb
->security_cfm(conn
, status
, encrypt
);
869 read_unlock(&hci_cb_list_lock
);
872 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
877 if (conn
->sec_level
== BT_SECURITY_SDP
)
878 conn
->sec_level
= BT_SECURITY_LOW
;
880 if (conn
->pending_sec_level
> conn
->sec_level
)
881 conn
->sec_level
= conn
->pending_sec_level
;
883 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
885 read_lock(&hci_cb_list_lock
);
886 list_for_each(p
, &hci_cb_list
) {
887 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
888 if (cb
->security_cfm
)
889 cb
->security_cfm(conn
, status
, encrypt
);
891 read_unlock(&hci_cb_list_lock
);
894 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
898 read_lock(&hci_cb_list_lock
);
899 list_for_each(p
, &hci_cb_list
) {
900 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
901 if (cb
->key_change_cfm
)
902 cb
->key_change_cfm(conn
, status
);
904 read_unlock(&hci_cb_list_lock
);
907 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
,
912 read_lock(&hci_cb_list_lock
);
913 list_for_each(p
, &hci_cb_list
) {
914 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
915 if (cb
->role_switch_cfm
)
916 cb
->role_switch_cfm(conn
, status
, role
);
918 read_unlock(&hci_cb_list_lock
);
921 static inline bool eir_has_data_type(u8
*data
, size_t data_len
, u8 type
)
928 while (parsed
< data_len
- 1) {
929 u8 field_len
= data
[0];
934 parsed
+= field_len
+ 1;
936 if (parsed
> data_len
)
942 data
+= field_len
+ 1;
948 static inline size_t eir_get_length(u8
*eir
, size_t eir_len
)
952 while (parsed
< eir_len
) {
953 u8 field_len
= eir
[0];
958 parsed
+= field_len
+ 1;
959 eir
+= field_len
+ 1;
965 static inline u16
eir_append_data(u8
*eir
, u16 eir_len
, u8 type
, u8
*data
,
968 eir
[eir_len
++] = sizeof(type
) + data_len
;
969 eir
[eir_len
++] = type
;
970 memcpy(&eir
[eir_len
], data
, data_len
);
976 int hci_register_cb(struct hci_cb
*hcb
);
977 int hci_unregister_cb(struct hci_cb
*hcb
);
979 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
, void *param
);
980 void hci_send_acl(struct hci_chan
*chan
, struct sk_buff
*skb
, __u16 flags
);
981 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
983 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
985 /* ----- HCI Sockets ----- */
986 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
);
987 void hci_send_to_control(struct sk_buff
*skb
, struct sock
*skip_sk
);
988 void hci_send_to_monitor(struct hci_dev
*hdev
, struct sk_buff
*skb
);
990 void hci_sock_dev_event(struct hci_dev
*hdev
, int event
);
992 /* Management interface */
993 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
994 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
995 BIT(BDADDR_LE_RANDOM))
996 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
997 BIT(BDADDR_LE_PUBLIC) | \
998 BIT(BDADDR_LE_RANDOM))
1000 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
1001 int mgmt_index_added(struct hci_dev
*hdev
);
1002 int mgmt_index_removed(struct hci_dev
*hdev
);
1003 int mgmt_powered(struct hci_dev
*hdev
, u8 powered
);
1004 int mgmt_discoverable(struct hci_dev
*hdev
, u8 discoverable
);
1005 int mgmt_connectable(struct hci_dev
*hdev
, u8 connectable
);
1006 int mgmt_write_scan_failed(struct hci_dev
*hdev
, u8 scan
, u8 status
);
1007 int mgmt_new_link_key(struct hci_dev
*hdev
, struct link_key
*key
,
1009 int mgmt_device_connected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1010 u8 addr_type
, u32 flags
, u8
*name
, u8 name_len
,
1012 int mgmt_device_disconnected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1013 u8 link_type
, u8 addr_type
, u8 reason
);
1014 int mgmt_disconnect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1015 u8 link_type
, u8 addr_type
, u8 status
);
1016 int mgmt_connect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1017 u8 addr_type
, u8 status
);
1018 int mgmt_pin_code_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 secure
);
1019 int mgmt_pin_code_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1021 int mgmt_pin_code_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1023 int mgmt_user_confirm_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1024 u8 link_type
, u8 addr_type
, __le32 value
,
1026 int mgmt_user_confirm_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1027 u8 link_type
, u8 addr_type
, u8 status
);
1028 int mgmt_user_confirm_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1029 u8 link_type
, u8 addr_type
, u8 status
);
1030 int mgmt_user_passkey_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1031 u8 link_type
, u8 addr_type
);
1032 int mgmt_user_passkey_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1033 u8 link_type
, u8 addr_type
, u8 status
);
1034 int mgmt_user_passkey_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1035 u8 link_type
, u8 addr_type
, u8 status
);
1036 int mgmt_user_passkey_notify(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1037 u8 link_type
, u8 addr_type
, u32 passkey
,
1039 int mgmt_auth_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1040 u8 addr_type
, u8 status
);
1041 int mgmt_auth_enable_complete(struct hci_dev
*hdev
, u8 status
);
1042 int mgmt_ssp_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1043 int mgmt_set_class_of_dev_complete(struct hci_dev
*hdev
, u8
*dev_class
,
1045 int mgmt_set_local_name_complete(struct hci_dev
*hdev
, u8
*name
, u8 status
);
1046 int mgmt_read_local_oob_data_reply_complete(struct hci_dev
*hdev
, u8
*hash
,
1047 u8
*randomizer
, u8 status
);
1048 int mgmt_le_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1049 int mgmt_device_found(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1050 u8 addr_type
, u8
*dev_class
, s8 rssi
, u8 cfm_name
,
1051 u8 ssp
, u8
*eir
, u16 eir_len
);
1052 int mgmt_remote_name(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1053 u8 addr_type
, s8 rssi
, u8
*name
, u8 name_len
);
1054 int mgmt_start_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1055 int mgmt_stop_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1056 int mgmt_discovering(struct hci_dev
*hdev
, u8 discovering
);
1057 int mgmt_interleaved_discovery(struct hci_dev
*hdev
);
1058 int mgmt_device_blocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1059 int mgmt_device_unblocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1060 bool mgmt_valid_hdev(struct hci_dev
*hdev
);
1061 int mgmt_new_ltk(struct hci_dev
*hdev
, struct smp_ltk
*key
, u8 persistent
);
1063 /* HCI info for socket */
1064 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1068 struct hci_dev
*hdev
;
1069 struct hci_filter filter
;
1071 unsigned short channel
;
1074 /* HCI security filter */
1075 #define HCI_SFLT_MAX_OGF 5
1077 struct hci_sec_filter
{
1079 __u32 event_mask
[2];
1080 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
1083 /* ----- HCI requests ----- */
1084 #define HCI_REQ_DONE 0
1085 #define HCI_REQ_PEND 1
1086 #define HCI_REQ_CANCELED 2
1088 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1089 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1091 void hci_req_complete(struct hci_dev
*hdev
, __u16 cmd
, int result
);
1093 void hci_le_conn_update(struct hci_conn
*conn
, u16 min
, u16 max
,
1094 u16 latency
, u16 to_multiplier
);
1095 void hci_le_start_enc(struct hci_conn
*conn
, __le16 ediv
, __u8 rand
[8],
1097 int hci_do_inquiry(struct hci_dev
*hdev
, u8 length
);
1098 int hci_cancel_inquiry(struct hci_dev
*hdev
);
1099 int hci_le_scan(struct hci_dev
*hdev
, u8 type
, u16 interval
, u16 window
,
1101 int hci_cancel_le_scan(struct hci_dev
*hdev
);
1103 u8
bdaddr_to_le(u8 bdaddr_type
);
1105 #endif /* __HCI_CORE_H */