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
127 #define NUM_REASSEMBLY 4
129 struct list_head list
;
138 __u8 dev_name
[HCI_MAX_NAME_LENGTH
];
139 __u8 short_name
[HCI_MAX_SHORT_NAME_LENGTH
];
140 __u8 eir
[HCI_MAX_EIR_LENGTH
];
145 __u8 host_features
[8];
166 __u16 sniff_min_interval
;
167 __u16 sniff_max_interval
;
172 __u32 amp_min_latency
;
176 __u16 amp_assoc_size
;
177 __u32 amp_max_flush_to
;
178 __u32 amp_be_flush_to
;
182 unsigned int auto_accept_delay
;
184 unsigned long quirks
;
187 unsigned int acl_cnt
;
188 unsigned int sco_cnt
;
191 unsigned int acl_mtu
;
192 unsigned int sco_mtu
;
194 unsigned int acl_pkts
;
195 unsigned int sco_pkts
;
196 unsigned int le_pkts
;
203 unsigned long acl_last_tx
;
204 unsigned long sco_last_tx
;
205 unsigned long le_last_tx
;
207 struct workqueue_struct
*workqueue
;
209 struct work_struct power_on
;
210 struct delayed_work power_off
;
212 __u16 discov_timeout
;
213 struct delayed_work discov_off
;
215 struct delayed_work service_cache
;
217 struct timer_list cmd_timer
;
219 struct work_struct rx_work
;
220 struct work_struct cmd_work
;
221 struct work_struct tx_work
;
223 struct sk_buff_head rx_q
;
224 struct sk_buff_head raw_q
;
225 struct sk_buff_head cmd_q
;
227 struct sk_buff
*sent_cmd
;
228 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
230 struct mutex req_lock
;
231 wait_queue_head_t req_wait_q
;
237 struct list_head mgmt_pending
;
239 struct discovery_state discovery
;
240 struct hci_conn_hash conn_hash
;
241 struct list_head blacklist
;
243 struct list_head uuids
;
245 struct list_head link_keys
;
247 struct list_head long_term_keys
;
249 struct list_head remote_oob_data
;
251 struct hci_dev_stats stat
;
253 struct sk_buff_head driver_init
;
259 struct dentry
*debugfs
;
263 struct rfkill
*rfkill
;
265 unsigned long dev_flags
;
267 struct delayed_work le_scan_disable
;
269 struct work_struct le_scan
;
270 struct le_scan_params le_scan_params
;
272 int (*open
)(struct hci_dev
*hdev
);
273 int (*close
)(struct hci_dev
*hdev
);
274 int (*flush
)(struct hci_dev
*hdev
);
275 int (*send
)(struct sk_buff
*skb
);
276 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
277 int (*ioctl
)(struct hci_dev
*hdev
, unsigned int cmd
, unsigned long arg
);
281 struct list_head list
;
302 __u8 pending_sec_level
;
306 __u32 passkey_notify
;
307 __u8 passkey_entered
;
317 struct sk_buff_head data_q
;
318 struct list_head chan_list
;
320 struct delayed_work disc_work
;
321 struct timer_list idle_timer
;
322 struct timer_list auto_accept_timer
;
327 struct hci_dev
*hdev
;
331 struct amp_mgr
*amp_mgr
;
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 void l2cap_connect_cfm(struct hci_conn
*hcon
, u8 status
);
356 extern int l2cap_disconn_ind(struct hci_conn
*hcon
);
357 extern void 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
,
362 extern int sco_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
363 extern void sco_connect_cfm(struct hci_conn
*hcon
, __u8 status
);
364 extern void sco_disconn_cfm(struct hci_conn
*hcon
, __u8 reason
);
365 extern int sco_recv_scodata(struct hci_conn
*hcon
, struct sk_buff
*skb
);
367 /* ----- Inquiry cache ----- */
368 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
369 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
371 static inline void discovery_init(struct hci_dev
*hdev
)
373 hdev
->discovery
.state
= DISCOVERY_STOPPED
;
374 INIT_LIST_HEAD(&hdev
->discovery
.all
);
375 INIT_LIST_HEAD(&hdev
->discovery
.unknown
);
376 INIT_LIST_HEAD(&hdev
->discovery
.resolve
);
379 bool hci_discovery_active(struct hci_dev
*hdev
);
381 void hci_discovery_set_state(struct hci_dev
*hdev
, int state
);
383 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
385 return list_empty(&hdev
->discovery
.all
);
388 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
390 struct discovery_state
*c
= &hdev
->discovery
;
391 return jiffies
- c
->timestamp
;
394 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
396 return jiffies
- e
->timestamp
;
399 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
,
401 struct inquiry_entry
*hci_inquiry_cache_lookup_unknown(struct hci_dev
*hdev
,
403 struct inquiry_entry
*hci_inquiry_cache_lookup_resolve(struct hci_dev
*hdev
,
406 void hci_inquiry_cache_update_resolve(struct hci_dev
*hdev
,
407 struct inquiry_entry
*ie
);
408 bool hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
,
409 bool name_known
, bool *ssp
);
411 /* ----- HCI Connections ----- */
414 HCI_CONN_REAUTH_PEND
,
415 HCI_CONN_ENCRYPT_PEND
,
416 HCI_CONN_RSWITCH_PEND
,
417 HCI_CONN_MODE_CHANGE_PEND
,
418 HCI_CONN_SCO_SETUP_PEND
,
419 HCI_CONN_LE_SMP_PEND
,
420 HCI_CONN_MGMT_CONNECTED
,
421 HCI_CONN_SSP_ENABLED
,
426 static inline bool hci_conn_ssp_enabled(struct hci_conn
*conn
)
428 struct hci_dev
*hdev
= conn
->hdev
;
429 return test_bit(HCI_SSP_ENABLED
, &hdev
->dev_flags
) &&
430 test_bit(HCI_CONN_SSP_ENABLED
, &conn
->flags
);
433 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
435 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
436 list_add_rcu(&c
->list
, &h
->list
);
451 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
453 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
455 list_del_rcu(&c
->list
);
472 static inline unsigned int hci_conn_num(struct hci_dev
*hdev
, __u8 type
)
474 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
488 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
491 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
496 list_for_each_entry_rcu(c
, &h
->list
, list
) {
497 if (c
->handle
== handle
) {
507 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
508 __u8 type
, bdaddr_t
*ba
)
510 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
515 list_for_each_entry_rcu(c
, &h
->list
, list
) {
516 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
)) {
527 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
528 __u8 type
, __u16 state
)
530 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
535 list_for_each_entry_rcu(c
, &h
->list
, list
) {
536 if (c
->type
== type
&& c
->state
== state
) {
547 void hci_acl_disconn(struct hci_conn
*conn
, __u8 reason
);
548 void hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
549 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
551 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
552 int hci_conn_del(struct hci_conn
*conn
);
553 void hci_conn_hash_flush(struct hci_dev
*hdev
);
554 void hci_conn_check_pending(struct hci_dev
*hdev
);
556 struct hci_chan
*hci_chan_create(struct hci_conn
*conn
);
557 void hci_chan_del(struct hci_chan
*chan
);
558 void hci_chan_list_flush(struct hci_conn
*conn
);
560 struct hci_conn
*hci_connect(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
,
561 __u8 dst_type
, __u8 sec_level
, __u8 auth_type
);
562 int hci_conn_check_link_mode(struct hci_conn
*conn
);
563 int hci_conn_check_secure(struct hci_conn
*conn
, __u8 sec_level
);
564 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
565 int hci_conn_change_link_key(struct hci_conn
*conn
);
566 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
568 void hci_conn_enter_active_mode(struct hci_conn
*conn
, __u8 force_active
);
570 void hci_conn_hold_device(struct hci_conn
*conn
);
571 void hci_conn_put_device(struct hci_conn
*conn
);
573 static inline void hci_conn_hold(struct hci_conn
*conn
)
575 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
577 atomic_inc(&conn
->refcnt
);
578 cancel_delayed_work(&conn
->disc_work
);
581 static inline void hci_conn_put(struct hci_conn
*conn
)
583 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
585 if (atomic_dec_and_test(&conn
->refcnt
)) {
587 if (conn
->type
== ACL_LINK
|| conn
->type
== LE_LINK
) {
588 del_timer(&conn
->idle_timer
);
589 if (conn
->state
== BT_CONNECTED
) {
590 timeo
= conn
->disc_timeout
;
594 timeo
= msecs_to_jiffies(10);
597 timeo
= msecs_to_jiffies(10);
599 cancel_delayed_work(&conn
->disc_work
);
600 queue_delayed_work(conn
->hdev
->workqueue
,
601 &conn
->disc_work
, timeo
);
605 /* ----- HCI Devices ----- */
606 static inline void hci_dev_put(struct hci_dev
*d
)
608 BT_DBG("%s orig refcnt %d", d
->name
,
609 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
614 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
616 BT_DBG("%s orig refcnt %d", d
->name
,
617 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
623 #define hci_dev_lock(d) mutex_lock(&d->lock)
624 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
626 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
627 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
629 static inline void *hci_get_drvdata(struct hci_dev
*hdev
)
631 return dev_get_drvdata(&hdev
->dev
);
634 static inline void hci_set_drvdata(struct hci_dev
*hdev
, void *data
)
636 dev_set_drvdata(&hdev
->dev
, data
);
639 /* hci_dev_list shall be locked */
640 static inline uint8_t __hci_num_ctrl(void)
645 list_for_each(p
, &hci_dev_list
) {
652 struct hci_dev
*hci_dev_get(int index
);
653 struct hci_dev
*hci_get_route(bdaddr_t
*src
, bdaddr_t
*dst
);
655 struct hci_dev
*hci_alloc_dev(void);
656 void hci_free_dev(struct hci_dev
*hdev
);
657 int hci_register_dev(struct hci_dev
*hdev
);
658 void hci_unregister_dev(struct hci_dev
*hdev
);
659 int hci_suspend_dev(struct hci_dev
*hdev
);
660 int hci_resume_dev(struct hci_dev
*hdev
);
661 int hci_dev_open(__u16 dev
);
662 int hci_dev_close(__u16 dev
);
663 int hci_dev_reset(__u16 dev
);
664 int hci_dev_reset_stat(__u16 dev
);
665 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
666 int hci_get_dev_list(void __user
*arg
);
667 int hci_get_dev_info(void __user
*arg
);
668 int hci_get_conn_list(void __user
*arg
);
669 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
670 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
671 int hci_inquiry(void __user
*arg
);
673 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
,
675 int hci_blacklist_clear(struct hci_dev
*hdev
);
676 int hci_blacklist_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
677 int hci_blacklist_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
679 int hci_uuids_clear(struct hci_dev
*hdev
);
681 int hci_link_keys_clear(struct hci_dev
*hdev
);
682 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
683 int hci_add_link_key(struct hci_dev
*hdev
, struct hci_conn
*conn
, int new_key
,
684 bdaddr_t
*bdaddr
, u8
*val
, u8 type
, u8 pin_len
);
685 struct smp_ltk
*hci_find_ltk(struct hci_dev
*hdev
, __le16 ediv
, u8 rand
[8]);
686 int hci_add_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 addr_type
, u8 type
,
687 int new_key
, u8 authenticated
, u8 tk
[16], u8 enc_size
,
688 __le16 ediv
, u8 rand
[8]);
689 struct smp_ltk
*hci_find_ltk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
691 int hci_remove_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
692 int hci_smp_ltks_clear(struct hci_dev
*hdev
);
693 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
695 int hci_remote_oob_data_clear(struct hci_dev
*hdev
);
696 struct oob_data
*hci_find_remote_oob_data(struct hci_dev
*hdev
,
698 int hci_add_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8
*hash
,
700 int hci_remove_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
702 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
704 int hci_recv_frame(struct sk_buff
*skb
);
705 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
706 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
708 void hci_init_sysfs(struct hci_dev
*hdev
);
709 int hci_add_sysfs(struct hci_dev
*hdev
);
710 void hci_del_sysfs(struct hci_dev
*hdev
);
711 void hci_conn_init_sysfs(struct hci_conn
*conn
);
712 void hci_conn_add_sysfs(struct hci_conn
*conn
);
713 void hci_conn_del_sysfs(struct hci_conn
*conn
);
715 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
717 /* ----- LMP capabilities ----- */
718 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
719 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
720 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
721 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
722 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
723 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
724 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
725 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
726 #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR))
728 /* ----- Extended LMP capabilities ----- */
729 #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE)
731 /* ----- HCI protocols ----- */
732 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
737 return l2cap_connect_ind(hdev
, bdaddr
);
741 return sco_connect_ind(hdev
, bdaddr
);
744 BT_ERR("unknown link type %d", type
);
749 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
751 switch (conn
->type
) {
754 l2cap_connect_cfm(conn
, status
);
759 sco_connect_cfm(conn
, status
);
763 BT_ERR("unknown link type %d", conn
->type
);
767 if (conn
->connect_cfm_cb
)
768 conn
->connect_cfm_cb(conn
, status
);
771 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
773 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
774 return HCI_ERROR_REMOTE_USER_TERM
;
776 return l2cap_disconn_ind(conn
);
779 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
781 switch (conn
->type
) {
784 l2cap_disconn_cfm(conn
, reason
);
789 sco_disconn_cfm(conn
, reason
);
793 BT_ERR("unknown link type %d", conn
->type
);
797 if (conn
->disconn_cfm_cb
)
798 conn
->disconn_cfm_cb(conn
, reason
);
801 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
805 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
808 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
811 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
812 l2cap_security_cfm(conn
, status
, encrypt
);
814 if (conn
->security_cfm_cb
)
815 conn
->security_cfm_cb(conn
, status
);
818 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
821 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
824 l2cap_security_cfm(conn
, status
, encrypt
);
826 if (conn
->security_cfm_cb
)
827 conn
->security_cfm_cb(conn
, status
);
830 /* ----- HCI callbacks ----- */
832 struct list_head list
;
836 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
,
838 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
839 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
842 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
847 hci_proto_auth_cfm(conn
, status
);
849 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
852 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
854 read_lock(&hci_cb_list_lock
);
855 list_for_each(p
, &hci_cb_list
) {
856 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
857 if (cb
->security_cfm
)
858 cb
->security_cfm(conn
, status
, encrypt
);
860 read_unlock(&hci_cb_list_lock
);
863 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
868 if (conn
->sec_level
== BT_SECURITY_SDP
)
869 conn
->sec_level
= BT_SECURITY_LOW
;
871 if (conn
->pending_sec_level
> conn
->sec_level
)
872 conn
->sec_level
= conn
->pending_sec_level
;
874 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
876 read_lock(&hci_cb_list_lock
);
877 list_for_each(p
, &hci_cb_list
) {
878 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
879 if (cb
->security_cfm
)
880 cb
->security_cfm(conn
, status
, encrypt
);
882 read_unlock(&hci_cb_list_lock
);
885 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
889 read_lock(&hci_cb_list_lock
);
890 list_for_each(p
, &hci_cb_list
) {
891 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
892 if (cb
->key_change_cfm
)
893 cb
->key_change_cfm(conn
, status
);
895 read_unlock(&hci_cb_list_lock
);
898 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
,
903 read_lock(&hci_cb_list_lock
);
904 list_for_each(p
, &hci_cb_list
) {
905 struct hci_cb
*cb
= list_entry(p
, struct hci_cb
, list
);
906 if (cb
->role_switch_cfm
)
907 cb
->role_switch_cfm(conn
, status
, role
);
909 read_unlock(&hci_cb_list_lock
);
912 static inline bool eir_has_data_type(u8
*data
, size_t data_len
, u8 type
)
919 while (parsed
< data_len
- 1) {
920 u8 field_len
= data
[0];
925 parsed
+= field_len
+ 1;
927 if (parsed
> data_len
)
933 data
+= field_len
+ 1;
939 static inline size_t eir_get_length(u8
*eir
, size_t eir_len
)
943 while (parsed
< eir_len
) {
944 u8 field_len
= eir
[0];
949 parsed
+= field_len
+ 1;
950 eir
+= field_len
+ 1;
956 static inline u16
eir_append_data(u8
*eir
, u16 eir_len
, u8 type
, u8
*data
,
959 eir
[eir_len
++] = sizeof(type
) + data_len
;
960 eir
[eir_len
++] = type
;
961 memcpy(&eir
[eir_len
], data
, data_len
);
967 int hci_register_cb(struct hci_cb
*hcb
);
968 int hci_unregister_cb(struct hci_cb
*hcb
);
970 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
, void *param
);
971 void hci_send_acl(struct hci_chan
*chan
, struct sk_buff
*skb
, __u16 flags
);
972 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
974 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
976 /* ----- HCI Sockets ----- */
977 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
);
978 void hci_send_to_control(struct sk_buff
*skb
, struct sock
*skip_sk
);
979 void hci_send_to_monitor(struct hci_dev
*hdev
, struct sk_buff
*skb
);
981 void hci_sock_dev_event(struct hci_dev
*hdev
, int event
);
983 /* Management interface */
984 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
985 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
986 BIT(BDADDR_LE_RANDOM))
987 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
988 BIT(BDADDR_LE_PUBLIC) | \
989 BIT(BDADDR_LE_RANDOM))
991 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
992 int mgmt_index_added(struct hci_dev
*hdev
);
993 int mgmt_index_removed(struct hci_dev
*hdev
);
994 int mgmt_powered(struct hci_dev
*hdev
, u8 powered
);
995 int mgmt_discoverable(struct hci_dev
*hdev
, u8 discoverable
);
996 int mgmt_connectable(struct hci_dev
*hdev
, u8 connectable
);
997 int mgmt_write_scan_failed(struct hci_dev
*hdev
, u8 scan
, u8 status
);
998 int mgmt_new_link_key(struct hci_dev
*hdev
, struct link_key
*key
,
1000 int mgmt_device_connected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1001 u8 addr_type
, u32 flags
, u8
*name
, u8 name_len
,
1003 int mgmt_device_disconnected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1004 u8 link_type
, u8 addr_type
, u8 reason
);
1005 int mgmt_disconnect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1006 u8 link_type
, u8 addr_type
, u8 status
);
1007 int mgmt_connect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1008 u8 addr_type
, u8 status
);
1009 int mgmt_pin_code_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 secure
);
1010 int mgmt_pin_code_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1012 int mgmt_pin_code_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1014 int mgmt_user_confirm_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1015 u8 link_type
, u8 addr_type
, __le32 value
,
1017 int mgmt_user_confirm_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1018 u8 link_type
, u8 addr_type
, u8 status
);
1019 int mgmt_user_confirm_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1020 u8 link_type
, u8 addr_type
, u8 status
);
1021 int mgmt_user_passkey_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1022 u8 link_type
, u8 addr_type
);
1023 int mgmt_user_passkey_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1024 u8 link_type
, u8 addr_type
, u8 status
);
1025 int mgmt_user_passkey_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1026 u8 link_type
, u8 addr_type
, u8 status
);
1027 int mgmt_user_passkey_notify(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1028 u8 link_type
, u8 addr_type
, u32 passkey
,
1030 int mgmt_auth_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1031 u8 addr_type
, u8 status
);
1032 int mgmt_auth_enable_complete(struct hci_dev
*hdev
, u8 status
);
1033 int mgmt_ssp_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1034 int mgmt_set_class_of_dev_complete(struct hci_dev
*hdev
, u8
*dev_class
,
1036 int mgmt_set_local_name_complete(struct hci_dev
*hdev
, u8
*name
, u8 status
);
1037 int mgmt_read_local_oob_data_reply_complete(struct hci_dev
*hdev
, u8
*hash
,
1038 u8
*randomizer
, u8 status
);
1039 int mgmt_le_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1040 int mgmt_device_found(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1041 u8 addr_type
, u8
*dev_class
, s8 rssi
, u8 cfm_name
,
1042 u8 ssp
, u8
*eir
, u16 eir_len
);
1043 int mgmt_remote_name(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1044 u8 addr_type
, s8 rssi
, u8
*name
, u8 name_len
);
1045 int mgmt_start_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1046 int mgmt_stop_discovery_failed(struct hci_dev
*hdev
, u8 status
);
1047 int mgmt_discovering(struct hci_dev
*hdev
, u8 discovering
);
1048 int mgmt_interleaved_discovery(struct hci_dev
*hdev
);
1049 int mgmt_device_blocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1050 int mgmt_device_unblocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1051 bool mgmt_valid_hdev(struct hci_dev
*hdev
);
1052 int mgmt_new_ltk(struct hci_dev
*hdev
, struct smp_ltk
*key
, u8 persistent
);
1054 /* HCI info for socket */
1055 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1059 struct hci_dev
*hdev
;
1060 struct hci_filter filter
;
1062 unsigned short channel
;
1065 /* HCI security filter */
1066 #define HCI_SFLT_MAX_OGF 5
1068 struct hci_sec_filter
{
1070 __u32 event_mask
[2];
1071 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
1074 /* ----- HCI requests ----- */
1075 #define HCI_REQ_DONE 0
1076 #define HCI_REQ_PEND 1
1077 #define HCI_REQ_CANCELED 2
1079 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1080 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1082 void hci_req_complete(struct hci_dev
*hdev
, __u16 cmd
, int result
);
1084 void hci_le_conn_update(struct hci_conn
*conn
, u16 min
, u16 max
,
1085 u16 latency
, u16 to_multiplier
);
1086 void hci_le_start_enc(struct hci_conn
*conn
, __le16 ediv
, __u8 rand
[8],
1088 int hci_do_inquiry(struct hci_dev
*hdev
, u8 length
);
1089 int hci_cancel_inquiry(struct hci_dev
*hdev
);
1090 int hci_le_scan(struct hci_dev
*hdev
, u8 type
, u16 interval
, u16 window
,
1092 int hci_cancel_le_scan(struct hci_dev
*hdev
);
1094 u8
bdaddr_to_le(u8 bdaddr_type
);
1096 #endif /* __HCI_CORE_H */