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/interrupt.h>
29 #include <net/bluetooth/hci.h>
32 #define HCI_PRIO_MAX 7
34 /* HCI Core structures */
38 __u8 pscan_period_mode
;
46 struct inquiry_entry
{
47 struct list_head all
; /* inq_cache.all */
48 struct list_head list
; /* unknown or resolve */
56 struct inquiry_data data
;
59 struct discovery_state
{
68 struct list_head all
; /* All devices found during inquiry */
69 struct list_head unknown
; /* Name state not known */
70 struct list_head resolve
; /* Name needs to be resolved */
74 struct hci_conn_hash
{
75 struct list_head list
;
82 struct list_head list
;
87 struct list_head list
;
93 struct list_head list
;
105 struct list_head list
;
113 struct list_head list
;
120 struct list_head list
;
125 struct le_scan_params
{
132 #define NUM_REASSEMBLY 4
134 struct list_head list
;
143 __u8 dev_name
[HCI_MAX_NAME_LENGTH
];
144 __u8 eir
[HCI_MAX_EIR_LENGTH
];
149 __u8 host_features
[8];
165 __u16 sniff_min_interval
;
166 __u16 sniff_max_interval
;
171 __u32 amp_min_latency
;
175 __u16 amp_assoc_size
;
176 __u32 amp_max_flush_to
;
177 __u32 amp_be_flush_to
;
181 unsigned int auto_accept_delay
;
183 unsigned long quirks
;
186 unsigned int acl_cnt
;
187 unsigned int sco_cnt
;
190 unsigned int acl_mtu
;
191 unsigned int sco_mtu
;
193 unsigned int acl_pkts
;
194 unsigned int sco_pkts
;
195 unsigned int le_pkts
;
202 unsigned long acl_last_tx
;
203 unsigned long sco_last_tx
;
204 unsigned long le_last_tx
;
206 struct workqueue_struct
*workqueue
;
208 struct work_struct power_on
;
209 struct delayed_work power_off
;
211 __u16 discov_timeout
;
212 struct delayed_work discov_off
;
214 struct delayed_work service_cache
;
216 struct timer_list cmd_timer
;
218 struct work_struct rx_work
;
219 struct work_struct cmd_work
;
220 struct work_struct tx_work
;
222 struct sk_buff_head rx_q
;
223 struct sk_buff_head raw_q
;
224 struct sk_buff_head cmd_q
;
226 struct sk_buff
*sent_cmd
;
227 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
229 struct mutex req_lock
;
230 wait_queue_head_t req_wait_q
;
236 struct list_head mgmt_pending
;
238 struct discovery_state discovery
;
239 struct hci_conn_hash conn_hash
;
240 struct list_head blacklist
;
242 struct list_head uuids
;
244 struct list_head link_keys
;
246 struct list_head long_term_keys
;
248 struct list_head remote_oob_data
;
250 struct list_head adv_entries
;
251 struct delayed_work adv_work
;
253 struct hci_dev_stats stat
;
255 struct sk_buff_head driver_init
;
262 struct dentry
*debugfs
;
264 struct device
*parent
;
267 struct rfkill
*rfkill
;
269 unsigned long dev_flags
;
271 struct delayed_work le_scan_disable
;
273 struct work_struct le_scan
;
274 struct le_scan_params le_scan_params
;
276 int (*open
)(struct hci_dev
*hdev
);
277 int (*close
)(struct hci_dev
*hdev
);
278 int (*flush
)(struct hci_dev
*hdev
);
279 int (*send
)(struct sk_buff
*skb
);
280 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
281 int (*ioctl
)(struct hci_dev
*hdev
, unsigned int cmd
, unsigned long arg
);
285 struct list_head list
;
306 __u8 pending_sec_level
;
318 struct sk_buff_head data_q
;
319 struct list_head chan_list
;
321 struct delayed_work disc_work
;
322 struct timer_list idle_timer
;
323 struct timer_list auto_accept_timer
;
328 struct hci_dev
*hdev
;
333 struct hci_conn
*link
;
335 void (*connect_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
336 void (*security_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
337 void (*disconn_cfm_cb
) (struct hci_conn
*conn
, u8 reason
);
341 struct list_head list
;
343 struct hci_conn
*conn
;
344 struct sk_buff_head data_q
;
348 extern struct list_head hci_dev_list
;
349 extern struct list_head hci_cb_list
;
350 extern rwlock_t hci_dev_list_lock
;
351 extern rwlock_t hci_cb_list_lock
;
353 /* ----- HCI interface to upper protocols ----- */
354 extern int l2cap_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
355 extern int l2cap_connect_cfm(struct hci_conn
*hcon
, u8 status
);
356 extern int l2cap_disconn_ind(struct hci_conn
*hcon
);
357 extern int l2cap_disconn_cfm(struct hci_conn
*hcon
, u8 reason
);
358 extern int l2cap_security_cfm(struct hci_conn
*hcon
, u8 status
, u8 encrypt
);
359 extern int l2cap_recv_acldata(struct hci_conn
*hcon
, struct sk_buff
*skb
, u16 flags
);
361 extern int sco_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
362 extern int sco_connect_cfm(struct hci_conn
*hcon
, __u8 status
);
363 extern int sco_disconn_cfm(struct hci_conn
*hcon
, __u8 reason
);
364 extern int sco_recv_scodata(struct hci_conn
*hcon
, struct sk_buff
*skb
);
366 /* ----- Inquiry cache ----- */
367 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
368 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
370 static inline void discovery_init(struct hci_dev
*hdev
)
372 hdev
->discovery
.state
= DISCOVERY_STOPPED
;
373 INIT_LIST_HEAD(&hdev
->discovery
.all
);
374 INIT_LIST_HEAD(&hdev
->discovery
.unknown
);
375 INIT_LIST_HEAD(&hdev
->discovery
.resolve
);
378 bool hci_discovery_active(struct hci_dev
*hdev
);
380 void hci_discovery_set_state(struct hci_dev
*hdev
, int state
);
382 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
384 return list_empty(&hdev
->discovery
.all
);
387 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
389 struct discovery_state
*c
= &hdev
->discovery
;
390 return jiffies
- c
->timestamp
;
393 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
395 return jiffies
- e
->timestamp
;
398 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
,
400 struct inquiry_entry
*hci_inquiry_cache_lookup_unknown(struct hci_dev
*hdev
,
402 struct inquiry_entry
*hci_inquiry_cache_lookup_resolve(struct hci_dev
*hdev
,
405 void hci_inquiry_cache_update_resolve(struct hci_dev
*hdev
,
406 struct inquiry_entry
*ie
);
407 bool hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
,
410 /* ----- HCI Connections ----- */
413 HCI_CONN_REAUTH_PEND
,
414 HCI_CONN_ENCRYPT_PEND
,
415 HCI_CONN_RSWITCH_PEND
,
416 HCI_CONN_MODE_CHANGE_PEND
,
417 HCI_CONN_SCO_SETUP_PEND
,
418 HCI_CONN_LE_SMP_PEND
,
419 HCI_CONN_MGMT_CONNECTED
,
420 HCI_CONN_SSP_ENABLED
,
425 static inline bool hci_conn_ssp_enabled(struct hci_conn
*conn
)
427 struct hci_dev
*hdev
= conn
->hdev
;
428 return (test_bit(HCI_SSP_ENABLED
, &hdev
->flags
) &&
429 test_bit(HCI_CONN_SSP_ENABLED
, &conn
->flags
));
432 static inline void hci_conn_hash_init(struct hci_dev
*hdev
)
434 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
435 INIT_LIST_HEAD(&h
->list
);
441 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
443 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
444 list_add_rcu(&c
->list
, &h
->list
);
459 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
461 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
463 list_del_rcu(&c
->list
);
480 static inline unsigned int hci_conn_num(struct hci_dev
*hdev
, __u8 type
)
482 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
496 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
499 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
504 list_for_each_entry_rcu(c
, &h
->list
, list
) {
505 if (c
->handle
== handle
) {
515 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
516 __u8 type
, bdaddr_t
*ba
)
518 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
523 list_for_each_entry_rcu(c
, &h
->list
, list
) {
524 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
)) {
535 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
536 __u8 type
, __u16 state
)
538 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
543 list_for_each_entry_rcu(c
, &h
->list
, list
) {
544 if (c
->type
== type
&& c
->state
== state
) {
555 void hci_acl_connect(struct hci_conn
*conn
);
556 void hci_acl_disconn(struct hci_conn
*conn
, __u8 reason
);
557 void hci_add_sco(struct hci_conn
*conn
, __u16 handle
);
558 void hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
559 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
561 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
562 int hci_conn_del(struct hci_conn
*conn
);
563 void hci_conn_hash_flush(struct hci_dev
*hdev
);
564 void hci_conn_check_pending(struct hci_dev
*hdev
);
566 struct hci_chan
*hci_chan_create(struct hci_conn
*conn
);
567 int hci_chan_del(struct hci_chan
*chan
);
568 void hci_chan_list_flush(struct hci_conn
*conn
);
570 struct hci_conn
*hci_connect(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
,
571 __u8 sec_level
, __u8 auth_type
);
572 int hci_conn_check_link_mode(struct hci_conn
*conn
);
573 int hci_conn_check_secure(struct hci_conn
*conn
, __u8 sec_level
);
574 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
575 int hci_conn_change_link_key(struct hci_conn
*conn
);
576 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
578 void hci_conn_enter_active_mode(struct hci_conn
*conn
, __u8 force_active
);
580 void hci_conn_hold_device(struct hci_conn
*conn
);
581 void hci_conn_put_device(struct hci_conn
*conn
);
583 static inline void hci_conn_hold(struct hci_conn
*conn
)
585 atomic_inc(&conn
->refcnt
);
586 cancel_delayed_work(&conn
->disc_work
);
589 static inline void hci_conn_put(struct hci_conn
*conn
)
591 if (atomic_dec_and_test(&conn
->refcnt
)) {
593 if (conn
->type
== ACL_LINK
|| conn
->type
== LE_LINK
) {
594 del_timer(&conn
->idle_timer
);
595 if (conn
->state
== BT_CONNECTED
) {
596 timeo
= msecs_to_jiffies(conn
->disc_timeout
);
600 timeo
= msecs_to_jiffies(10);
603 timeo
= msecs_to_jiffies(10);
605 cancel_delayed_work(&conn
->disc_work
);
606 queue_delayed_work(conn
->hdev
->workqueue
,
607 &conn
->disc_work
, timeo
);
611 /* ----- HCI Devices ----- */
612 static inline void hci_dev_put(struct hci_dev
*d
)
617 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
623 #define hci_dev_lock(d) mutex_lock(&d->lock)
624 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
626 struct hci_dev
*hci_dev_get(int index
);
627 struct hci_dev
*hci_get_route(bdaddr_t
*src
, bdaddr_t
*dst
);
629 struct hci_dev
*hci_alloc_dev(void);
630 void hci_free_dev(struct hci_dev
*hdev
);
631 int hci_register_dev(struct hci_dev
*hdev
);
632 void hci_unregister_dev(struct hci_dev
*hdev
);
633 int hci_suspend_dev(struct hci_dev
*hdev
);
634 int hci_resume_dev(struct hci_dev
*hdev
);
635 int hci_dev_open(__u16 dev
);
636 int hci_dev_close(__u16 dev
);
637 int hci_dev_reset(__u16 dev
);
638 int hci_dev_reset_stat(__u16 dev
);
639 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
640 int hci_get_dev_list(void __user
*arg
);
641 int hci_get_dev_info(void __user
*arg
);
642 int hci_get_conn_list(void __user
*arg
);
643 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
644 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
645 int hci_inquiry(void __user
*arg
);
647 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
648 int hci_blacklist_clear(struct hci_dev
*hdev
);
649 int hci_blacklist_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
650 int hci_blacklist_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
652 int hci_uuids_clear(struct hci_dev
*hdev
);
654 int hci_link_keys_clear(struct hci_dev
*hdev
);
655 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
656 int hci_add_link_key(struct hci_dev
*hdev
, struct hci_conn
*conn
, int new_key
,
657 bdaddr_t
*bdaddr
, u8
*val
, u8 type
, u8 pin_len
);
658 struct smp_ltk
*hci_find_ltk(struct hci_dev
*hdev
, __le16 ediv
, u8 rand
[8]);
659 int hci_add_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 addr_type
, u8 type
,
660 int new_key
, u8 authenticated
, u8 tk
[16],
661 u8 enc_size
, u16 ediv
, u8 rand
[8]);
662 struct smp_ltk
*hci_find_ltk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
664 int hci_remove_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
665 int hci_smp_ltks_clear(struct hci_dev
*hdev
);
666 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
668 int hci_remote_oob_data_clear(struct hci_dev
*hdev
);
669 struct oob_data
*hci_find_remote_oob_data(struct hci_dev
*hdev
,
671 int hci_add_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8
*hash
,
673 int hci_remove_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
675 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
676 int hci_adv_entries_clear(struct hci_dev
*hdev
);
677 struct adv_entry
*hci_find_adv_entry(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
678 int hci_add_adv_entry(struct hci_dev
*hdev
,
679 struct hci_ev_le_advertising_info
*ev
);
681 void hci_del_off_timer(struct hci_dev
*hdev
);
683 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
685 int hci_recv_frame(struct sk_buff
*skb
);
686 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
687 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
689 void hci_init_sysfs(struct hci_dev
*hdev
);
690 int hci_add_sysfs(struct hci_dev
*hdev
);
691 void hci_del_sysfs(struct hci_dev
*hdev
);
692 void hci_conn_init_sysfs(struct hci_conn
*conn
);
693 void hci_conn_add_sysfs(struct hci_conn
*conn
);
694 void hci_conn_del_sysfs(struct hci_conn
*conn
);
696 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
698 /* ----- LMP capabilities ----- */
699 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
700 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
701 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
702 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
703 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
704 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
705 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
706 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
708 /* ----- Extended LMP capabilities ----- */
709 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
711 /* ----- HCI protocols ----- */
712 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
717 return l2cap_connect_ind(hdev
, bdaddr
);
721 return sco_connect_ind(hdev
, bdaddr
);
724 BT_ERR("unknown link type %d", type
);
729 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
731 switch (conn
->type
) {
734 l2cap_connect_cfm(conn
, status
);
739 sco_connect_cfm(conn
, status
);
743 BT_ERR("unknown link type %d", conn
->type
);
747 if (conn
->connect_cfm_cb
)
748 conn
->connect_cfm_cb(conn
, status
);
751 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
753 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
754 return HCI_ERROR_REMOTE_USER_TERM
;
756 return l2cap_disconn_ind(conn
);
759 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
761 switch (conn
->type
) {
764 l2cap_disconn_cfm(conn
, reason
);
769 sco_disconn_cfm(conn
, reason
);
773 BT_ERR("unknown link type %d", conn
->type
);
777 if (conn
->disconn_cfm_cb
)
778 conn
->disconn_cfm_cb(conn
, reason
);
781 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
785 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
788 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
791 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
792 l2cap_security_cfm(conn
, status
, encrypt
);
794 if (conn
->security_cfm_cb
)
795 conn
->security_cfm_cb(conn
, status
);
798 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
801 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
804 l2cap_security_cfm(conn
, status
, encrypt
);
806 if (conn
->security_cfm_cb
)
807 conn
->security_cfm_cb(conn
, status
);
810 /* ----- HCI callbacks ----- */
812 struct list_head list
;
816 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
,
818 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
819 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
822 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
827 hci_proto_auth_cfm(conn
, status
);
829 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
832 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
834 read_lock(&hci_cb_list_lock
);
835 list_for_each(p
, &hci_cb_list
) {
836 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
837 if (cb
->security_cfm
)
838 cb
->security_cfm(conn
, status
, encrypt
);
840 read_unlock(&hci_cb_list_lock
);
843 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
848 if (conn
->sec_level
== BT_SECURITY_SDP
)
849 conn
->sec_level
= BT_SECURITY_LOW
;
851 if (conn
->pending_sec_level
> conn
->sec_level
)
852 conn
->sec_level
= conn
->pending_sec_level
;
854 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
856 read_lock(&hci_cb_list_lock
);
857 list_for_each(p
, &hci_cb_list
) {
858 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
859 if (cb
->security_cfm
)
860 cb
->security_cfm(conn
, status
, encrypt
);
862 read_unlock(&hci_cb_list_lock
);
865 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
869 read_lock(&hci_cb_list_lock
);
870 list_for_each(p
, &hci_cb_list
) {
871 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
872 if (cb
->key_change_cfm
)
873 cb
->key_change_cfm(conn
, status
);
875 read_unlock(&hci_cb_list_lock
);
878 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
,
883 read_lock(&hci_cb_list_lock
);
884 list_for_each(p
, &hci_cb_list
) {
885 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
886 if (cb
->role_switch_cfm
)
887 cb
->role_switch_cfm(conn
, status
, role
);
889 read_unlock(&hci_cb_list_lock
);
892 static inline bool eir_has_data_type(u8
*data
, size_t data_len
, u8 type
)
897 for (parsed
= 0; parsed
< data_len
- 1; parsed
+= field_len
) {
903 parsed
+= field_len
+ 1;
905 if (parsed
> data_len
)
911 data
+= field_len
+ 1;
917 static inline u16
eir_append_data(u8
*eir
, u16 eir_len
, u8 type
, u8
*data
,
920 eir
[eir_len
++] = sizeof(type
) + data_len
;
921 eir
[eir_len
++] = type
;
922 memcpy(&eir
[eir_len
], data
, data_len
);
928 int hci_register_cb(struct hci_cb
*hcb
);
929 int hci_unregister_cb(struct hci_cb
*hcb
);
931 int hci_register_notifier(struct notifier_block
*nb
);
932 int hci_unregister_notifier(struct notifier_block
*nb
);
934 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
, void *param
);
935 void hci_send_acl(struct hci_chan
*chan
, struct sk_buff
*skb
, __u16 flags
);
936 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
938 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
940 void hci_si_event(struct hci_dev
*hdev
, int type
, int dlen
, void *data
);
942 /* ----- HCI Sockets ----- */
943 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
,
944 struct sock
*skip_sk
);
946 /* Management interface */
947 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
948 int mgmt_index_added(struct hci_dev
*hdev
);
949 int mgmt_index_removed(struct hci_dev
*hdev
);
950 int mgmt_powered(struct hci_dev
*hdev
, u8 powered
);
951 int mgmt_discoverable(struct hci_dev
*hdev
, u8 discoverable
);
952 int mgmt_connectable(struct hci_dev
*hdev
, u8 connectable
);
953 int mgmt_write_scan_failed(struct hci_dev
*hdev
, u8 scan
, u8 status
);
954 int mgmt_new_link_key(struct hci_dev
*hdev
, struct link_key
*key
,
956 int mgmt_device_connected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
957 u8 addr_type
, u8
*name
, u8 name_len
,
959 int mgmt_device_disconnected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
960 u8 link_type
, u8 addr_type
);
961 int mgmt_disconnect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
962 u8 link_type
, u8 addr_type
, u8 status
);
963 int mgmt_connect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
964 u8 addr_type
, u8 status
);
965 int mgmt_pin_code_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 secure
);
966 int mgmt_pin_code_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
968 int mgmt_pin_code_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
970 int mgmt_user_confirm_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
971 __le32 value
, u8 confirm_hint
);
972 int mgmt_user_confirm_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
974 int mgmt_user_confirm_neg_reply_complete(struct hci_dev
*hdev
,
975 bdaddr_t
*bdaddr
, u8 status
);
976 int mgmt_user_passkey_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
977 int mgmt_user_passkey_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
979 int mgmt_user_passkey_neg_reply_complete(struct hci_dev
*hdev
,
980 bdaddr_t
*bdaddr
, u8 status
);
981 int mgmt_auth_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 status
);
982 int mgmt_set_local_name_complete(struct hci_dev
*hdev
, u8
*name
, u8 status
);
983 int mgmt_read_local_oob_data_reply_complete(struct hci_dev
*hdev
, u8
*hash
,
984 u8
*randomizer
, u8 status
);
985 int mgmt_device_found(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
986 u8 addr_type
, u8
*dev_class
, s8 rssi
,
987 u8 cfm_name
, u8
*eir
, u16 eir_len
);
988 int mgmt_remote_name(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
989 u8 addr_type
, s8 rssi
, u8
*name
, u8 name_len
);
990 int mgmt_start_discovery_failed(struct hci_dev
*hdev
, u8 status
);
991 int mgmt_stop_discovery_failed(struct hci_dev
*hdev
, u8 status
);
992 int mgmt_discovering(struct hci_dev
*hdev
, u8 discovering
);
993 int mgmt_device_blocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
994 int mgmt_device_unblocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
996 int mgmt_new_ltk(struct hci_dev
*hdev
, struct smp_ltk
*key
, u8 persistent
);
998 /* HCI info for socket */
999 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1001 /* HCI socket flags */
1002 #define HCI_PI_MGMT_INIT 0
1006 struct hci_dev
*hdev
;
1007 struct hci_filter filter
;
1009 unsigned short channel
;
1010 unsigned long flags
;
1013 /* HCI security filter */
1014 #define HCI_SFLT_MAX_OGF 5
1016 struct hci_sec_filter
{
1018 __u32 event_mask
[2];
1019 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
1022 /* ----- HCI requests ----- */
1023 #define HCI_REQ_DONE 0
1024 #define HCI_REQ_PEND 1
1025 #define HCI_REQ_CANCELED 2
1027 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1028 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1030 void hci_req_complete(struct hci_dev
*hdev
, __u16 cmd
, int result
);
1032 void hci_le_conn_update(struct hci_conn
*conn
, u16 min
, u16 max
,
1033 u16 latency
, u16 to_multiplier
);
1034 void hci_le_start_enc(struct hci_conn
*conn
, __le16 ediv
, __u8 rand
[8],
1036 void hci_le_ltk_reply(struct hci_conn
*conn
, u8 ltk
[16]);
1037 void hci_le_ltk_neg_reply(struct hci_conn
*conn
);
1039 int hci_do_inquiry(struct hci_dev
*hdev
, u8 length
);
1040 int hci_cancel_inquiry(struct hci_dev
*hdev
);
1041 int hci_le_scan(struct hci_dev
*hdev
, u8 type
, u16 interval
, u16 window
,
1044 #endif /* __HCI_CORE_H */