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 HCI_MAX_SHORT_NAME_LENGTH 10
134 #define NUM_REASSEMBLY 4
136 struct list_head list
;
145 __u8 dev_name
[HCI_MAX_NAME_LENGTH
];
146 __u8 short_name
[HCI_MAX_SHORT_NAME_LENGTH
];
147 __u8 eir
[HCI_MAX_EIR_LENGTH
];
152 __u8 host_features
[8];
173 __u16 sniff_min_interval
;
174 __u16 sniff_max_interval
;
179 __u32 amp_min_latency
;
183 __u16 amp_assoc_size
;
184 __u32 amp_max_flush_to
;
185 __u32 amp_be_flush_to
;
189 unsigned int auto_accept_delay
;
191 unsigned long quirks
;
194 unsigned int acl_cnt
;
195 unsigned int sco_cnt
;
198 unsigned int acl_mtu
;
199 unsigned int sco_mtu
;
201 unsigned int acl_pkts
;
202 unsigned int sco_pkts
;
203 unsigned int le_pkts
;
210 unsigned long acl_last_tx
;
211 unsigned long sco_last_tx
;
212 unsigned long le_last_tx
;
214 struct workqueue_struct
*workqueue
;
216 struct work_struct power_on
;
217 struct delayed_work power_off
;
219 __u16 discov_timeout
;
220 struct delayed_work discov_off
;
222 struct delayed_work service_cache
;
224 struct timer_list cmd_timer
;
226 struct work_struct rx_work
;
227 struct work_struct cmd_work
;
228 struct work_struct tx_work
;
230 struct sk_buff_head rx_q
;
231 struct sk_buff_head raw_q
;
232 struct sk_buff_head cmd_q
;
234 struct sk_buff
*sent_cmd
;
235 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
237 struct mutex req_lock
;
238 wait_queue_head_t req_wait_q
;
244 struct list_head mgmt_pending
;
246 struct discovery_state discovery
;
247 struct hci_conn_hash conn_hash
;
248 struct list_head blacklist
;
250 struct list_head uuids
;
252 struct list_head link_keys
;
254 struct list_head long_term_keys
;
256 struct list_head remote_oob_data
;
258 struct hci_dev_stats stat
;
260 struct sk_buff_head driver_init
;
266 struct dentry
*debugfs
;
270 struct rfkill
*rfkill
;
272 unsigned long dev_flags
;
274 struct delayed_work le_scan_disable
;
276 struct work_struct le_scan
;
277 struct le_scan_params le_scan_params
;
279 int (*open
)(struct hci_dev
*hdev
);
280 int (*close
)(struct hci_dev
*hdev
);
281 int (*flush
)(struct hci_dev
*hdev
);
282 int (*send
)(struct sk_buff
*skb
);
283 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
284 int (*ioctl
)(struct hci_dev
*hdev
, unsigned int cmd
, unsigned long arg
);
288 struct list_head list
;
309 __u8 pending_sec_level
;
322 struct sk_buff_head data_q
;
323 struct list_head chan_list
;
325 struct delayed_work disc_work
;
326 struct timer_list idle_timer
;
327 struct timer_list auto_accept_timer
;
332 struct hci_dev
*hdev
;
337 struct hci_conn
*link
;
339 void (*connect_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
340 void (*security_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
341 void (*disconn_cfm_cb
) (struct hci_conn
*conn
, u8 reason
);
345 struct list_head list
;
347 struct hci_conn
*conn
;
348 struct sk_buff_head data_q
;
352 extern struct list_head hci_dev_list
;
353 extern struct list_head hci_cb_list
;
354 extern rwlock_t hci_dev_list_lock
;
355 extern rwlock_t hci_cb_list_lock
;
357 /* ----- HCI interface to upper protocols ----- */
358 extern int l2cap_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
359 extern int l2cap_connect_cfm(struct hci_conn
*hcon
, u8 status
);
360 extern int l2cap_disconn_ind(struct hci_conn
*hcon
);
361 extern int l2cap_disconn_cfm(struct hci_conn
*hcon
, u8 reason
);
362 extern int l2cap_security_cfm(struct hci_conn
*hcon
, u8 status
, u8 encrypt
);
363 extern int l2cap_recv_acldata(struct hci_conn
*hcon
, struct sk_buff
*skb
, u16 flags
);
365 extern int sco_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
366 extern int sco_connect_cfm(struct hci_conn
*hcon
, __u8 status
);
367 extern int sco_disconn_cfm(struct hci_conn
*hcon
, __u8 reason
);
368 extern int sco_recv_scodata(struct hci_conn
*hcon
, struct sk_buff
*skb
);
370 /* ----- Inquiry cache ----- */
371 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
372 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
374 static inline void discovery_init(struct hci_dev
*hdev
)
376 hdev
->discovery
.state
= DISCOVERY_STOPPED
;
377 INIT_LIST_HEAD(&hdev
->discovery
.all
);
378 INIT_LIST_HEAD(&hdev
->discovery
.unknown
);
379 INIT_LIST_HEAD(&hdev
->discovery
.resolve
);
382 bool hci_discovery_active(struct hci_dev
*hdev
);
384 void hci_discovery_set_state(struct hci_dev
*hdev
, int state
);
386 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
388 return list_empty(&hdev
->discovery
.all
);
391 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
393 struct discovery_state
*c
= &hdev
->discovery
;
394 return jiffies
- c
->timestamp
;
397 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
399 return jiffies
- e
->timestamp
;
402 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
,
404 struct inquiry_entry
*hci_inquiry_cache_lookup_unknown(struct hci_dev
*hdev
,
406 struct inquiry_entry
*hci_inquiry_cache_lookup_resolve(struct hci_dev
*hdev
,
409 void hci_inquiry_cache_update_resolve(struct hci_dev
*hdev
,
410 struct inquiry_entry
*ie
);
411 bool hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
,
412 bool name_known
, bool *ssp
);
414 /* ----- HCI Connections ----- */
417 HCI_CONN_REAUTH_PEND
,
418 HCI_CONN_ENCRYPT_PEND
,
419 HCI_CONN_RSWITCH_PEND
,
420 HCI_CONN_MODE_CHANGE_PEND
,
421 HCI_CONN_SCO_SETUP_PEND
,
422 HCI_CONN_LE_SMP_PEND
,
423 HCI_CONN_MGMT_CONNECTED
,
424 HCI_CONN_SSP_ENABLED
,
429 static inline bool hci_conn_ssp_enabled(struct hci_conn
*conn
)
431 struct hci_dev
*hdev
= conn
->hdev
;
432 return (test_bit(HCI_SSP_ENABLED
, &hdev
->dev_flags
) &&
433 test_bit(HCI_CONN_SSP_ENABLED
, &conn
->flags
));
436 static inline void hci_conn_hash_init(struct hci_dev
*hdev
)
438 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
439 INIT_LIST_HEAD(&h
->list
);
445 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
447 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
448 list_add_rcu(&c
->list
, &h
->list
);
463 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
465 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
467 list_del_rcu(&c
->list
);
484 static inline unsigned int hci_conn_num(struct hci_dev
*hdev
, __u8 type
)
486 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
500 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
503 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
508 list_for_each_entry_rcu(c
, &h
->list
, list
) {
509 if (c
->handle
== handle
) {
519 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
520 __u8 type
, bdaddr_t
*ba
)
522 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
527 list_for_each_entry_rcu(c
, &h
->list
, list
) {
528 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
)) {
539 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
540 __u8 type
, __u16 state
)
542 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
547 list_for_each_entry_rcu(c
, &h
->list
, list
) {
548 if (c
->type
== type
&& c
->state
== state
) {
559 void hci_acl_connect(struct hci_conn
*conn
);
560 void hci_acl_disconn(struct hci_conn
*conn
, __u8 reason
);
561 void hci_add_sco(struct hci_conn
*conn
, __u16 handle
);
562 void hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
563 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
565 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
566 int hci_conn_del(struct hci_conn
*conn
);
567 void hci_conn_hash_flush(struct hci_dev
*hdev
);
568 void hci_conn_check_pending(struct hci_dev
*hdev
);
570 struct hci_chan
*hci_chan_create(struct hci_conn
*conn
);
571 int hci_chan_del(struct hci_chan
*chan
);
572 void hci_chan_list_flush(struct hci_conn
*conn
);
574 struct hci_conn
*hci_connect(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
,
575 __u8 dst_type
, __u8 sec_level
, __u8 auth_type
);
576 int hci_conn_check_link_mode(struct hci_conn
*conn
);
577 int hci_conn_check_secure(struct hci_conn
*conn
, __u8 sec_level
);
578 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
579 int hci_conn_change_link_key(struct hci_conn
*conn
);
580 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
582 void hci_conn_enter_active_mode(struct hci_conn
*conn
, __u8 force_active
);
584 void hci_conn_hold_device(struct hci_conn
*conn
);
585 void hci_conn_put_device(struct hci_conn
*conn
);
587 static inline void hci_conn_hold(struct hci_conn
*conn
)
589 atomic_inc(&conn
->refcnt
);
590 cancel_delayed_work(&conn
->disc_work
);
593 static inline void hci_conn_put(struct hci_conn
*conn
)
595 if (atomic_dec_and_test(&conn
->refcnt
)) {
597 if (conn
->type
== ACL_LINK
|| conn
->type
== LE_LINK
) {
598 del_timer(&conn
->idle_timer
);
599 if (conn
->state
== BT_CONNECTED
) {
600 timeo
= msecs_to_jiffies(conn
->disc_timeout
);
604 timeo
= msecs_to_jiffies(10);
607 timeo
= msecs_to_jiffies(10);
609 cancel_delayed_work(&conn
->disc_work
);
610 queue_delayed_work(conn
->hdev
->workqueue
,
611 &conn
->disc_work
, timeo
);
615 /* ----- HCI Devices ----- */
616 static inline void hci_dev_put(struct hci_dev
*d
)
621 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
627 #define hci_dev_lock(d) mutex_lock(&d->lock)
628 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
630 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
631 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
633 static inline void *hci_get_drvdata(struct hci_dev
*hdev
)
635 return dev_get_drvdata(&hdev
->dev
);
638 static inline void hci_set_drvdata(struct hci_dev
*hdev
, void *data
)
640 dev_set_drvdata(&hdev
->dev
, data
);
643 struct hci_dev
*hci_dev_get(int index
);
644 struct hci_dev
*hci_get_route(bdaddr_t
*src
, bdaddr_t
*dst
);
646 struct hci_dev
*hci_alloc_dev(void);
647 void hci_free_dev(struct hci_dev
*hdev
);
648 int hci_register_dev(struct hci_dev
*hdev
);
649 void hci_unregister_dev(struct hci_dev
*hdev
);
650 int hci_suspend_dev(struct hci_dev
*hdev
);
651 int hci_resume_dev(struct hci_dev
*hdev
);
652 int hci_dev_open(__u16 dev
);
653 int hci_dev_close(__u16 dev
);
654 int hci_dev_reset(__u16 dev
);
655 int hci_dev_reset_stat(__u16 dev
);
656 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
657 int hci_get_dev_list(void __user
*arg
);
658 int hci_get_dev_info(void __user
*arg
);
659 int hci_get_conn_list(void __user
*arg
);
660 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
661 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
662 int hci_inquiry(void __user
*arg
);
664 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
665 int hci_blacklist_clear(struct hci_dev
*hdev
);
666 int hci_blacklist_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
667 int hci_blacklist_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
669 int hci_uuids_clear(struct hci_dev
*hdev
);
671 int hci_link_keys_clear(struct hci_dev
*hdev
);
672 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
673 int hci_add_link_key(struct hci_dev
*hdev
, struct hci_conn
*conn
, int new_key
,
674 bdaddr_t
*bdaddr
, u8
*val
, u8 type
, u8 pin_len
);
675 struct smp_ltk
*hci_find_ltk(struct hci_dev
*hdev
, __le16 ediv
, u8 rand
[8]);
676 int hci_add_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 addr_type
, u8 type
,
677 int new_key
, u8 authenticated
, u8 tk
[16], u8 enc_size
,
678 __le16 ediv
, u8 rand
[8]);
679 struct smp_ltk
*hci_find_ltk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
681 int hci_remove_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
682 int hci_smp_ltks_clear(struct hci_dev
*hdev
);
683 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
685 int hci_remote_oob_data_clear(struct hci_dev
*hdev
);
686 struct oob_data
*hci_find_remote_oob_data(struct hci_dev
*hdev
,
688 int hci_add_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8
*hash
,
690 int hci_remove_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
692 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
694 int hci_recv_frame(struct sk_buff
*skb
);
695 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
696 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
698 void hci_init_sysfs(struct hci_dev
*hdev
);
699 int hci_add_sysfs(struct hci_dev
*hdev
);
700 void hci_del_sysfs(struct hci_dev
*hdev
);
701 void hci_conn_init_sysfs(struct hci_conn
*conn
);
702 void hci_conn_add_sysfs(struct hci_conn
*conn
);
703 void hci_conn_del_sysfs(struct hci_conn
*conn
);
705 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
707 /* ----- LMP capabilities ----- */
708 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
709 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
710 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
711 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
712 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
713 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
714 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
715 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
716 #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
718 /* ----- Extended LMP capabilities ----- */
719 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
721 /* ----- HCI protocols ----- */
722 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
727 return l2cap_connect_ind(hdev
, bdaddr
);
731 return sco_connect_ind(hdev
, bdaddr
);
734 BT_ERR("unknown link type %d", type
);
739 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
741 switch (conn
->type
) {
744 l2cap_connect_cfm(conn
, status
);
749 sco_connect_cfm(conn
, status
);
753 BT_ERR("unknown link type %d", conn
->type
);
757 if (conn
->connect_cfm_cb
)
758 conn
->connect_cfm_cb(conn
, status
);
761 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
763 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
764 return HCI_ERROR_REMOTE_USER_TERM
;
766 return l2cap_disconn_ind(conn
);
769 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
771 switch (conn
->type
) {
774 l2cap_disconn_cfm(conn
, reason
);
779 sco_disconn_cfm(conn
, reason
);
783 BT_ERR("unknown link type %d", conn
->type
);
787 if (conn
->disconn_cfm_cb
)
788 conn
->disconn_cfm_cb(conn
, reason
);
791 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
795 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
798 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
801 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
802 l2cap_security_cfm(conn
, status
, encrypt
);
804 if (conn
->security_cfm_cb
)
805 conn
->security_cfm_cb(conn
, status
);
808 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
811 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
814 l2cap_security_cfm(conn
, status
, encrypt
);
816 if (conn
->security_cfm_cb
)
817 conn
->security_cfm_cb(conn
, status
);
820 /* ----- HCI callbacks ----- */
822 struct list_head list
;
826 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
,
828 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
829 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
832 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
837 hci_proto_auth_cfm(conn
, status
);
839 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
842 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
844 read_lock(&hci_cb_list_lock
);
845 list_for_each(p
, &hci_cb_list
) {
846 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
847 if (cb
->security_cfm
)
848 cb
->security_cfm(conn
, status
, encrypt
);
850 read_unlock(&hci_cb_list_lock
);
853 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
858 if (conn
->sec_level
== BT_SECURITY_SDP
)
859 conn
->sec_level
= BT_SECURITY_LOW
;
861 if (conn
->pending_sec_level
> conn
->sec_level
)
862 conn
->sec_level
= conn
->pending_sec_level
;
864 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
866 read_lock(&hci_cb_list_lock
);
867 list_for_each(p
, &hci_cb_list
) {
868 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
869 if (cb
->security_cfm
)
870 cb
->security_cfm(conn
, status
, encrypt
);
872 read_unlock(&hci_cb_list_lock
);
875 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
879 read_lock(&hci_cb_list_lock
);
880 list_for_each(p
, &hci_cb_list
) {
881 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
882 if (cb
->key_change_cfm
)
883 cb
->key_change_cfm(conn
, status
);
885 read_unlock(&hci_cb_list_lock
);
888 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
,
893 read_lock(&hci_cb_list_lock
);
894 list_for_each(p
, &hci_cb_list
) {
895 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
896 if (cb
->role_switch_cfm
)
897 cb
->role_switch_cfm(conn
, status
, role
);
899 read_unlock(&hci_cb_list_lock
);
902 static inline bool eir_has_data_type(u8
*data
, size_t data_len
, u8 type
)
909 while (parsed
< data_len
- 1) {
910 u8 field_len
= data
[0];
915 parsed
+= field_len
+ 1;
917 if (parsed
> data_len
)
923 data
+= field_len
+ 1;
929 static inline size_t eir_get_length(u8
*eir
, size_t eir_len
)
933 while (parsed
< eir_len
) {
934 u8 field_len
= eir
[0];
939 parsed
+= field_len
+ 1;
940 eir
+= field_len
+ 1;
946 static inline u16
eir_append_data(u8
*eir
, u16 eir_len
, u8 type
, u8
*data
,
949 eir
[eir_len
++] = sizeof(type
) + data_len
;
950 eir
[eir_len
++] = type
;
951 memcpy(&eir
[eir_len
], data
, data_len
);
957 int hci_register_cb(struct hci_cb
*hcb
);
958 int hci_unregister_cb(struct hci_cb
*hcb
);
960 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
, void *param
);
961 void hci_send_acl(struct hci_chan
*chan
, struct sk_buff
*skb
, __u16 flags
);
962 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
964 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
966 /* ----- HCI Sockets ----- */
967 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
);
968 void hci_send_to_control(struct sk_buff
*skb
, struct sock
*skip_sk
);
969 void hci_send_to_monitor(struct hci_dev
*hdev
, struct sk_buff
*skb
);
971 void hci_sock_dev_event(struct hci_dev
*hdev
, int event
);
973 /* Management interface */
974 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
975 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
976 BIT(BDADDR_LE_RANDOM))
977 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
978 BIT(BDADDR_LE_PUBLIC) | \
979 BIT(BDADDR_LE_RANDOM))
981 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
982 int mgmt_index_added(struct hci_dev
*hdev
);
983 int mgmt_index_removed(struct hci_dev
*hdev
);
984 int mgmt_powered(struct hci_dev
*hdev
, u8 powered
);
985 int mgmt_discoverable(struct hci_dev
*hdev
, u8 discoverable
);
986 int mgmt_connectable(struct hci_dev
*hdev
, u8 connectable
);
987 int mgmt_write_scan_failed(struct hci_dev
*hdev
, u8 scan
, u8 status
);
988 int mgmt_new_link_key(struct hci_dev
*hdev
, struct link_key
*key
,
990 int mgmt_device_connected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
991 u8 addr_type
, u32 flags
, u8
*name
, u8 name_len
,
993 int mgmt_device_disconnected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
994 u8 link_type
, u8 addr_type
);
995 int mgmt_disconnect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
996 u8 link_type
, u8 addr_type
, u8 status
);
997 int mgmt_connect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
998 u8 addr_type
, u8 status
);
999 int mgmt_pin_code_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 secure
);
1000 int mgmt_pin_code_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1002 int mgmt_pin_code_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1004 int mgmt_user_confirm_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1005 u8 link_type
, u8 addr_type
, __le32 value
,
1007 int mgmt_user_confirm_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1008 u8 link_type
, u8 addr_type
, u8 status
);
1009 int mgmt_user_confirm_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1010 u8 link_type
, u8 addr_type
, u8 status
);
1011 int mgmt_user_passkey_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1012 u8 link_type
, u8 addr_type
);
1013 int mgmt_user_passkey_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1014 u8 link_type
, u8 addr_type
, u8 status
);
1015 int mgmt_user_passkey_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1016 u8 link_type
, u8 addr_type
, u8 status
);
1017 int mgmt_auth_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1018 u8 addr_type
, u8 status
);
1019 int mgmt_auth_enable_complete(struct hci_dev
*hdev
, u8 status
);
1020 int mgmt_ssp_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1021 int mgmt_set_class_of_dev_complete(struct hci_dev
*hdev
, u8
*dev_class
,
1023 int mgmt_set_local_name_complete(struct hci_dev
*hdev
, u8
*name
, u8 status
);
1024 int mgmt_read_local_oob_data_reply_complete(struct hci_dev
*hdev
, u8
*hash
,
1025 u8
*randomizer
, u8 status
);
1026 int mgmt_le_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1027 int mgmt_device_found(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1028 u8 addr_type
, u8
*dev_class
, s8 rssi
, u8 cfm_name
,
1029 u8 ssp
, u8
*eir
, u16 eir_len
);
1030 int mgmt_remote_name(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1031 u8 addr_type
, s8 rssi
, u8
*name
, u8 name_len
);
1032 int mgmt_start_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1033 int mgmt_stop_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1034 int mgmt_discovering(struct hci_dev
*hdev
, u8 discovering
);
1035 int mgmt_interleaved_discovery(struct hci_dev
*hdev
);
1036 int mgmt_device_blocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1037 int mgmt_device_unblocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1039 int mgmt_new_ltk(struct hci_dev
*hdev
, struct smp_ltk
*key
, u8 persistent
);
1041 /* HCI info for socket */
1042 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1046 struct hci_dev
*hdev
;
1047 struct hci_filter filter
;
1049 unsigned short channel
;
1052 /* HCI security filter */
1053 #define HCI_SFLT_MAX_OGF 5
1055 struct hci_sec_filter
{
1057 __u32 event_mask
[2];
1058 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
1061 /* ----- HCI requests ----- */
1062 #define HCI_REQ_DONE 0
1063 #define HCI_REQ_PEND 1
1064 #define HCI_REQ_CANCELED 2
1066 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1067 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1069 void hci_req_complete(struct hci_dev
*hdev
, __u16 cmd
, int result
);
1071 void hci_le_conn_update(struct hci_conn
*conn
, u16 min
, u16 max
,
1072 u16 latency
, u16 to_multiplier
);
1073 void hci_le_start_enc(struct hci_conn
*conn
, __le16 ediv
, __u8 rand
[8],
1075 int hci_do_inquiry(struct hci_dev
*hdev
, u8 length
);
1076 int hci_cancel_inquiry(struct hci_dev
*hdev
);
1077 int hci_le_scan(struct hci_dev
*hdev
, u8 type
, u16 interval
, u16 window
,
1079 int hci_cancel_le_scan(struct hci_dev
*hdev
);
1081 u8
bdaddr_to_le(u8 bdaddr_type
);
1083 #endif /* __HCI_CORE_H */