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
;
82 struct list_head list
;
88 struct list_head list
;
102 struct list_head list
;
114 struct list_head list
;
122 struct list_head list
;
125 u8 val
[HCI_LINK_KEY_SIZE
];
130 struct list_head list
;
133 u8 randomizer192
[16];
135 u8 randomizer256
[16];
138 #define HCI_MAX_SHORT_NAME_LENGTH 10
140 /* Default LE RPA expiry time, 15 minutes */
141 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
148 __u8 data
[HCI_MAX_AMP_ASSOC_SIZE
];
151 #define HCI_MAX_PAGES 3
153 #define NUM_REASSEMBLY 4
155 struct list_head list
;
164 bdaddr_t random_addr
;
165 bdaddr_t static_addr
;
167 __u8 dev_name
[HCI_MAX_NAME_LENGTH
];
168 __u8 short_name
[HCI_MAX_SHORT_NAME_LENGTH
];
169 __u8 eir
[HCI_MAX_EIR_LENGTH
];
174 __u8 features
[HCI_MAX_PAGES
][8];
176 __u8 le_white_list_size
;
188 __u16 page_scan_interval
;
189 __u16 page_scan_window
;
191 __u8 le_adv_channel_map
;
193 __u16 le_scan_interval
;
194 __u16 le_scan_window
;
195 __u16 le_conn_min_interval
;
196 __u16 le_conn_max_interval
;
210 __u16 sniff_min_interval
;
211 __u16 sniff_max_interval
;
216 __u32 amp_min_latency
;
220 __u16 amp_assoc_size
;
221 __u32 amp_max_flush_to
;
222 __u32 amp_be_flush_to
;
224 struct amp_assoc loc_assoc
;
228 unsigned int auto_accept_delay
;
230 unsigned long quirks
;
233 unsigned int acl_cnt
;
234 unsigned int sco_cnt
;
237 unsigned int acl_mtu
;
238 unsigned int sco_mtu
;
240 unsigned int acl_pkts
;
241 unsigned int sco_pkts
;
242 unsigned int le_pkts
;
249 unsigned long acl_last_tx
;
250 unsigned long sco_last_tx
;
251 unsigned long le_last_tx
;
253 struct workqueue_struct
*workqueue
;
254 struct workqueue_struct
*req_workqueue
;
256 struct work_struct power_on
;
257 struct delayed_work power_off
;
259 __u16 discov_timeout
;
260 struct delayed_work discov_off
;
262 struct delayed_work service_cache
;
264 struct timer_list cmd_timer
;
266 struct work_struct rx_work
;
267 struct work_struct cmd_work
;
268 struct work_struct tx_work
;
270 struct sk_buff_head rx_q
;
271 struct sk_buff_head raw_q
;
272 struct sk_buff_head cmd_q
;
274 struct sk_buff
*recv_evt
;
275 struct sk_buff
*sent_cmd
;
276 struct sk_buff
*reassembly
[NUM_REASSEMBLY
];
278 struct mutex req_lock
;
279 wait_queue_head_t req_wait_q
;
283 struct crypto_blkcipher
*tfm_aes
;
285 struct discovery_state discovery
;
286 struct hci_conn_hash conn_hash
;
288 struct list_head mgmt_pending
;
289 struct list_head blacklist
;
290 struct list_head uuids
;
291 struct list_head link_keys
;
292 struct list_head long_term_keys
;
293 struct list_head identity_resolving_keys
;
294 struct list_head remote_oob_data
;
295 struct list_head le_white_list
;
296 struct list_head le_conn_params
;
297 struct list_head pend_le_conns
;
299 struct hci_dev_stats stat
;
303 struct dentry
*debugfs
;
307 struct rfkill
*rfkill
;
309 unsigned long dev_flags
;
311 struct delayed_work le_scan_disable
;
314 __u8 adv_data
[HCI_MAX_AD_LENGTH
];
316 __u8 scan_rsp_data
[HCI_MAX_AD_LENGTH
];
317 __u8 scan_rsp_data_len
;
321 struct delayed_work rpa_expired
;
324 int (*open
)(struct hci_dev
*hdev
);
325 int (*close
)(struct hci_dev
*hdev
);
326 int (*flush
)(struct hci_dev
*hdev
);
327 int (*setup
)(struct hci_dev
*hdev
);
328 int (*send
)(struct hci_dev
*hdev
, struct sk_buff
*skb
);
329 void (*notify
)(struct hci_dev
*hdev
, unsigned int evt
);
332 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
335 struct list_head list
;
354 __u8 features
[HCI_MAX_PAGES
][8];
361 __u8 pending_sec_level
;
365 __u32 passkey_notify
;
366 __u8 passkey_entered
;
369 __u16 le_conn_min_interval
;
370 __u16 le_conn_max_interval
;
380 struct sk_buff_head data_q
;
381 struct list_head chan_list
;
383 struct delayed_work disc_work
;
384 struct delayed_work auto_accept_work
;
385 struct delayed_work idle_work
;
386 struct delayed_work le_conn_timeout
;
390 struct hci_dev
*hdev
;
394 struct amp_mgr
*amp_mgr
;
396 struct hci_conn
*link
;
398 void (*connect_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
399 void (*security_cfm_cb
) (struct hci_conn
*conn
, u8 status
);
400 void (*disconn_cfm_cb
) (struct hci_conn
*conn
, u8 reason
);
404 struct list_head list
;
406 struct hci_conn
*conn
;
407 struct sk_buff_head data_q
;
412 struct hci_conn_params
{
413 struct list_head list
;
418 u16 conn_min_interval
;
419 u16 conn_max_interval
;
422 HCI_AUTO_CONN_DISABLED
,
423 HCI_AUTO_CONN_ALWAYS
,
424 HCI_AUTO_CONN_LINK_LOSS
,
428 extern struct list_head hci_dev_list
;
429 extern struct list_head hci_cb_list
;
430 extern rwlock_t hci_dev_list_lock
;
431 extern rwlock_t hci_cb_list_lock
;
433 /* ----- HCI interface to upper protocols ----- */
434 int l2cap_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
435 void l2cap_connect_cfm(struct hci_conn
*hcon
, u8 status
);
436 int l2cap_disconn_ind(struct hci_conn
*hcon
);
437 void l2cap_disconn_cfm(struct hci_conn
*hcon
, u8 reason
);
438 int l2cap_security_cfm(struct hci_conn
*hcon
, u8 status
, u8 encrypt
);
439 int l2cap_recv_acldata(struct hci_conn
*hcon
, struct sk_buff
*skb
, u16 flags
);
441 int sco_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, __u8
*flags
);
442 void sco_connect_cfm(struct hci_conn
*hcon
, __u8 status
);
443 void sco_disconn_cfm(struct hci_conn
*hcon
, __u8 reason
);
444 int sco_recv_scodata(struct hci_conn
*hcon
, struct sk_buff
*skb
);
446 /* ----- Inquiry cache ----- */
447 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
448 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
450 static inline void discovery_init(struct hci_dev
*hdev
)
452 hdev
->discovery
.state
= DISCOVERY_STOPPED
;
453 INIT_LIST_HEAD(&hdev
->discovery
.all
);
454 INIT_LIST_HEAD(&hdev
->discovery
.unknown
);
455 INIT_LIST_HEAD(&hdev
->discovery
.resolve
);
458 bool hci_discovery_active(struct hci_dev
*hdev
);
460 void hci_discovery_set_state(struct hci_dev
*hdev
, int state
);
462 static inline int inquiry_cache_empty(struct hci_dev
*hdev
)
464 return list_empty(&hdev
->discovery
.all
);
467 static inline long inquiry_cache_age(struct hci_dev
*hdev
)
469 struct discovery_state
*c
= &hdev
->discovery
;
470 return jiffies
- c
->timestamp
;
473 static inline long inquiry_entry_age(struct inquiry_entry
*e
)
475 return jiffies
- e
->timestamp
;
478 struct inquiry_entry
*hci_inquiry_cache_lookup(struct hci_dev
*hdev
,
480 struct inquiry_entry
*hci_inquiry_cache_lookup_unknown(struct hci_dev
*hdev
,
482 struct inquiry_entry
*hci_inquiry_cache_lookup_resolve(struct hci_dev
*hdev
,
485 void hci_inquiry_cache_update_resolve(struct hci_dev
*hdev
,
486 struct inquiry_entry
*ie
);
487 bool hci_inquiry_cache_update(struct hci_dev
*hdev
, struct inquiry_data
*data
,
488 bool name_known
, bool *ssp
);
489 void hci_inquiry_cache_flush(struct hci_dev
*hdev
);
491 /* ----- HCI Connections ----- */
494 HCI_CONN_REAUTH_PEND
,
495 HCI_CONN_ENCRYPT_PEND
,
496 HCI_CONN_RSWITCH_PEND
,
497 HCI_CONN_MODE_CHANGE_PEND
,
498 HCI_CONN_SCO_SETUP_PEND
,
499 HCI_CONN_LE_SMP_PEND
,
500 HCI_CONN_MGMT_CONNECTED
,
501 HCI_CONN_SSP_ENABLED
,
509 static inline bool hci_conn_ssp_enabled(struct hci_conn
*conn
)
511 struct hci_dev
*hdev
= conn
->hdev
;
512 return test_bit(HCI_SSP_ENABLED
, &hdev
->dev_flags
) &&
513 test_bit(HCI_CONN_SSP_ENABLED
, &conn
->flags
);
516 static inline bool hci_conn_sc_enabled(struct hci_conn
*conn
)
518 struct hci_dev
*hdev
= conn
->hdev
;
519 return test_bit(HCI_SC_ENABLED
, &hdev
->dev_flags
) &&
520 test_bit(HCI_CONN_SC_ENABLED
, &conn
->flags
);
523 static inline void hci_conn_hash_add(struct hci_dev
*hdev
, struct hci_conn
*c
)
525 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
526 list_add_rcu(&c
->list
, &h
->list
);
544 static inline void hci_conn_hash_del(struct hci_dev
*hdev
, struct hci_conn
*c
)
546 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
548 list_del_rcu(&c
->list
);
568 static inline unsigned int hci_conn_num(struct hci_dev
*hdev
, __u8 type
)
570 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
586 static inline unsigned int hci_conn_count(struct hci_dev
*hdev
)
588 struct hci_conn_hash
*c
= &hdev
->conn_hash
;
590 return c
->acl_num
+ c
->amp_num
+ c
->sco_num
+ c
->le_num
;
593 static inline struct hci_conn
*hci_conn_hash_lookup_handle(struct hci_dev
*hdev
,
596 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
601 list_for_each_entry_rcu(c
, &h
->list
, list
) {
602 if (c
->handle
== handle
) {
612 static inline struct hci_conn
*hci_conn_hash_lookup_ba(struct hci_dev
*hdev
,
613 __u8 type
, bdaddr_t
*ba
)
615 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
620 list_for_each_entry_rcu(c
, &h
->list
, list
) {
621 if (c
->type
== type
&& !bacmp(&c
->dst
, ba
)) {
632 static inline struct hci_conn
*hci_conn_hash_lookup_state(struct hci_dev
*hdev
,
633 __u8 type
, __u16 state
)
635 struct hci_conn_hash
*h
= &hdev
->conn_hash
;
640 list_for_each_entry_rcu(c
, &h
->list
, list
) {
641 if (c
->type
== type
&& c
->state
== state
) {
652 void hci_disconnect(struct hci_conn
*conn
, __u8 reason
);
653 bool hci_setup_sync(struct hci_conn
*conn
, __u16 handle
);
654 void hci_sco_setup(struct hci_conn
*conn
, __u8 status
);
656 struct hci_conn
*hci_conn_add(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
);
657 int hci_conn_del(struct hci_conn
*conn
);
658 void hci_conn_hash_flush(struct hci_dev
*hdev
);
659 void hci_conn_check_pending(struct hci_dev
*hdev
);
661 struct hci_chan
*hci_chan_create(struct hci_conn
*conn
);
662 void hci_chan_del(struct hci_chan
*chan
);
663 void hci_chan_list_flush(struct hci_conn
*conn
);
664 struct hci_chan
*hci_chan_lookup_handle(struct hci_dev
*hdev
, __u16 handle
);
666 struct hci_conn
*hci_connect_le(struct hci_dev
*hdev
, bdaddr_t
*dst
,
667 u8 dst_type
, u8 sec_level
, u8 auth_type
);
668 struct hci_conn
*hci_connect_acl(struct hci_dev
*hdev
, bdaddr_t
*dst
,
669 u8 sec_level
, u8 auth_type
);
670 struct hci_conn
*hci_connect_sco(struct hci_dev
*hdev
, int type
, bdaddr_t
*dst
,
672 int hci_conn_check_link_mode(struct hci_conn
*conn
);
673 int hci_conn_check_secure(struct hci_conn
*conn
, __u8 sec_level
);
674 int hci_conn_security(struct hci_conn
*conn
, __u8 sec_level
, __u8 auth_type
);
675 int hci_conn_change_link_key(struct hci_conn
*conn
);
676 int hci_conn_switch_role(struct hci_conn
*conn
, __u8 role
);
678 void hci_conn_enter_active_mode(struct hci_conn
*conn
, __u8 force_active
);
680 void hci_le_conn_failed(struct hci_conn
*conn
, u8 status
);
683 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
684 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
685 * working or anything else. They just guarantee that the object is available
686 * and can be dereferenced. So you can use its locks, local variables and any
687 * other constant data.
688 * Before accessing runtime data, you _must_ lock the object and then check that
689 * it is still running. As soon as you release the locks, the connection might
690 * get dropped, though.
692 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
693 * how long the underlying connection is held. So every channel that runs on the
694 * hci_conn object calls this to prevent the connection from disappearing. As
695 * long as you hold a device, you must also guarantee that you have a valid
696 * reference to the device via hci_conn_get() (or the initial reference from
698 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
699 * break because nobody cares for that. But this means, we cannot use
700 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
703 static inline void hci_conn_get(struct hci_conn
*conn
)
705 get_device(&conn
->dev
);
708 static inline void hci_conn_put(struct hci_conn
*conn
)
710 put_device(&conn
->dev
);
713 static inline void hci_conn_hold(struct hci_conn
*conn
)
715 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
717 atomic_inc(&conn
->refcnt
);
718 cancel_delayed_work(&conn
->disc_work
);
721 static inline void hci_conn_drop(struct hci_conn
*conn
)
723 BT_DBG("hcon %p orig refcnt %d", conn
, atomic_read(&conn
->refcnt
));
725 if (atomic_dec_and_test(&conn
->refcnt
)) {
728 switch (conn
->type
) {
731 cancel_delayed_work(&conn
->idle_work
);
732 if (conn
->state
== BT_CONNECTED
) {
733 timeo
= conn
->disc_timeout
;
737 timeo
= msecs_to_jiffies(10);
742 timeo
= conn
->disc_timeout
;
746 timeo
= msecs_to_jiffies(10);
750 cancel_delayed_work(&conn
->disc_work
);
751 queue_delayed_work(conn
->hdev
->workqueue
,
752 &conn
->disc_work
, timeo
);
756 /* ----- HCI Devices ----- */
757 static inline void hci_dev_put(struct hci_dev
*d
)
759 BT_DBG("%s orig refcnt %d", d
->name
,
760 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
765 static inline struct hci_dev
*hci_dev_hold(struct hci_dev
*d
)
767 BT_DBG("%s orig refcnt %d", d
->name
,
768 atomic_read(&d
->dev
.kobj
.kref
.refcount
));
774 #define hci_dev_lock(d) mutex_lock(&d->lock)
775 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
777 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
778 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
780 static inline void *hci_get_drvdata(struct hci_dev
*hdev
)
782 return dev_get_drvdata(&hdev
->dev
);
785 static inline void hci_set_drvdata(struct hci_dev
*hdev
, void *data
)
787 dev_set_drvdata(&hdev
->dev
, data
);
790 struct hci_dev
*hci_dev_get(int index
);
791 struct hci_dev
*hci_get_route(bdaddr_t
*dst
, bdaddr_t
*src
);
793 struct hci_dev
*hci_alloc_dev(void);
794 void hci_free_dev(struct hci_dev
*hdev
);
795 int hci_register_dev(struct hci_dev
*hdev
);
796 void hci_unregister_dev(struct hci_dev
*hdev
);
797 int hci_suspend_dev(struct hci_dev
*hdev
);
798 int hci_resume_dev(struct hci_dev
*hdev
);
799 int hci_dev_open(__u16 dev
);
800 int hci_dev_close(__u16 dev
);
801 int hci_dev_reset(__u16 dev
);
802 int hci_dev_reset_stat(__u16 dev
);
803 int hci_dev_cmd(unsigned int cmd
, void __user
*arg
);
804 int hci_get_dev_list(void __user
*arg
);
805 int hci_get_dev_info(void __user
*arg
);
806 int hci_get_conn_list(void __user
*arg
);
807 int hci_get_conn_info(struct hci_dev
*hdev
, void __user
*arg
);
808 int hci_get_auth_info(struct hci_dev
*hdev
, void __user
*arg
);
809 int hci_inquiry(void __user
*arg
);
811 struct bdaddr_list
*hci_blacklist_lookup(struct hci_dev
*hdev
,
812 bdaddr_t
*bdaddr
, u8 type
);
813 int hci_blacklist_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
814 int hci_blacklist_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
816 struct bdaddr_list
*hci_white_list_lookup(struct hci_dev
*hdev
,
817 bdaddr_t
*bdaddr
, u8 type
);
818 void hci_white_list_clear(struct hci_dev
*hdev
);
819 int hci_white_list_add(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
820 int hci_white_list_del(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
822 struct hci_conn_params
*hci_conn_params_lookup(struct hci_dev
*hdev
,
823 bdaddr_t
*addr
, u8 addr_type
);
824 int hci_conn_params_add(struct hci_dev
*hdev
, bdaddr_t
*addr
, u8 addr_type
,
825 u8 auto_connect
, u16 conn_min_interval
,
826 u16 conn_max_interval
);
827 void hci_conn_params_del(struct hci_dev
*hdev
, bdaddr_t
*addr
, u8 addr_type
);
828 void hci_conn_params_clear(struct hci_dev
*hdev
);
830 struct bdaddr_list
*hci_pend_le_conn_lookup(struct hci_dev
*hdev
,
831 bdaddr_t
*addr
, u8 addr_type
);
832 void hci_pend_le_conn_add(struct hci_dev
*hdev
, bdaddr_t
*addr
, u8 addr_type
);
833 void hci_pend_le_conn_del(struct hci_dev
*hdev
, bdaddr_t
*addr
, u8 addr_type
);
834 void hci_pend_le_conns_clear(struct hci_dev
*hdev
);
836 void hci_update_background_scan(struct hci_dev
*hdev
);
838 void hci_uuids_clear(struct hci_dev
*hdev
);
840 void hci_link_keys_clear(struct hci_dev
*hdev
);
841 struct link_key
*hci_find_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
842 int hci_add_link_key(struct hci_dev
*hdev
, struct hci_conn
*conn
, int new_key
,
843 bdaddr_t
*bdaddr
, u8
*val
, u8 type
, u8 pin_len
);
844 struct smp_ltk
*hci_find_ltk(struct hci_dev
*hdev
, __le16 ediv
, __le64 rand
,
846 struct smp_ltk
*hci_add_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
847 u8 addr_type
, u8 type
, u8 authenticated
,
848 u8 tk
[16], u8 enc_size
, __le16 ediv
, __le64 rand
);
849 struct smp_ltk
*hci_find_ltk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
850 u8 addr_type
, bool master
);
851 int hci_remove_ltk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 bdaddr_type
);
852 void hci_smp_ltks_clear(struct hci_dev
*hdev
);
853 int hci_remove_link_key(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
855 struct smp_irk
*hci_find_irk_by_rpa(struct hci_dev
*hdev
, bdaddr_t
*rpa
);
856 struct smp_irk
*hci_find_irk_by_addr(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
858 struct smp_irk
*hci_add_irk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
859 u8 addr_type
, u8 val
[16], bdaddr_t
*rpa
);
860 void hci_remove_irk(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 addr_type
);
861 void hci_smp_irks_clear(struct hci_dev
*hdev
);
863 void hci_remote_oob_data_clear(struct hci_dev
*hdev
);
864 struct oob_data
*hci_find_remote_oob_data(struct hci_dev
*hdev
,
866 int hci_add_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
867 u8
*hash
, u8
*randomizer
);
868 int hci_add_remote_oob_ext_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
869 u8
*hash192
, u8
*randomizer192
,
870 u8
*hash256
, u8
*randomizer256
);
871 int hci_remove_remote_oob_data(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
);
873 void hci_event_packet(struct hci_dev
*hdev
, struct sk_buff
*skb
);
875 int hci_recv_frame(struct hci_dev
*hdev
, struct sk_buff
*skb
);
876 int hci_recv_fragment(struct hci_dev
*hdev
, int type
, void *data
, int count
);
877 int hci_recv_stream_fragment(struct hci_dev
*hdev
, void *data
, int count
);
879 void hci_init_sysfs(struct hci_dev
*hdev
);
880 void hci_conn_init_sysfs(struct hci_conn
*conn
);
881 void hci_conn_add_sysfs(struct hci_conn
*conn
);
882 void hci_conn_del_sysfs(struct hci_conn
*conn
);
884 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
886 /* ----- LMP capabilities ----- */
887 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
888 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
889 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
890 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
891 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
892 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
893 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
894 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
895 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
896 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
897 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
898 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
899 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
900 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
901 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
902 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
903 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
904 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
905 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
907 /* ----- Extended LMP capabilities ----- */
908 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
909 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
910 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
911 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
912 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
913 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
915 /* ----- Host capabilities ----- */
916 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
917 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
918 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
919 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
921 /* ----- HCI protocols ----- */
922 #define HCI_PROTO_DEFER 0x01
924 static inline int hci_proto_connect_ind(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
925 __u8 type
, __u8
*flags
)
929 return l2cap_connect_ind(hdev
, bdaddr
);
933 return sco_connect_ind(hdev
, bdaddr
, flags
);
936 BT_ERR("unknown link type %d", type
);
941 static inline void hci_proto_connect_cfm(struct hci_conn
*conn
, __u8 status
)
943 switch (conn
->type
) {
946 l2cap_connect_cfm(conn
, status
);
951 sco_connect_cfm(conn
, status
);
955 BT_ERR("unknown link type %d", conn
->type
);
959 if (conn
->connect_cfm_cb
)
960 conn
->connect_cfm_cb(conn
, status
);
963 static inline int hci_proto_disconn_ind(struct hci_conn
*conn
)
965 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
966 return HCI_ERROR_REMOTE_USER_TERM
;
968 return l2cap_disconn_ind(conn
);
971 static inline void hci_proto_disconn_cfm(struct hci_conn
*conn
, __u8 reason
)
973 switch (conn
->type
) {
976 l2cap_disconn_cfm(conn
, reason
);
981 sco_disconn_cfm(conn
, reason
);
984 /* L2CAP would be handled for BREDR chan */
989 BT_ERR("unknown link type %d", conn
->type
);
993 if (conn
->disconn_cfm_cb
)
994 conn
->disconn_cfm_cb(conn
, reason
);
997 static inline void hci_proto_auth_cfm(struct hci_conn
*conn
, __u8 status
)
1001 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
1004 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
1007 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
1008 l2cap_security_cfm(conn
, status
, encrypt
);
1010 if (conn
->security_cfm_cb
)
1011 conn
->security_cfm_cb(conn
, status
);
1014 static inline void hci_proto_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
1017 if (conn
->type
!= ACL_LINK
&& conn
->type
!= LE_LINK
)
1020 l2cap_security_cfm(conn
, status
, encrypt
);
1022 if (conn
->security_cfm_cb
)
1023 conn
->security_cfm_cb(conn
, status
);
1026 /* ----- HCI callbacks ----- */
1028 struct list_head list
;
1032 void (*security_cfm
) (struct hci_conn
*conn
, __u8 status
,
1034 void (*key_change_cfm
) (struct hci_conn
*conn
, __u8 status
);
1035 void (*role_switch_cfm
) (struct hci_conn
*conn
, __u8 status
, __u8 role
);
1038 static inline void hci_auth_cfm(struct hci_conn
*conn
, __u8 status
)
1043 hci_proto_auth_cfm(conn
, status
);
1045 if (test_bit(HCI_CONN_ENCRYPT_PEND
, &conn
->flags
))
1048 encrypt
= (conn
->link_mode
& HCI_LM_ENCRYPT
) ? 0x01 : 0x00;
1050 read_lock(&hci_cb_list_lock
);
1051 list_for_each_entry(cb
, &hci_cb_list
, list
) {
1052 if (cb
->security_cfm
)
1053 cb
->security_cfm(conn
, status
, encrypt
);
1055 read_unlock(&hci_cb_list_lock
);
1058 static inline void hci_encrypt_cfm(struct hci_conn
*conn
, __u8 status
,
1063 if (conn
->sec_level
== BT_SECURITY_SDP
)
1064 conn
->sec_level
= BT_SECURITY_LOW
;
1066 if (conn
->pending_sec_level
> conn
->sec_level
)
1067 conn
->sec_level
= conn
->pending_sec_level
;
1069 hci_proto_encrypt_cfm(conn
, status
, encrypt
);
1071 read_lock(&hci_cb_list_lock
);
1072 list_for_each_entry(cb
, &hci_cb_list
, list
) {
1073 if (cb
->security_cfm
)
1074 cb
->security_cfm(conn
, status
, encrypt
);
1076 read_unlock(&hci_cb_list_lock
);
1079 static inline void hci_key_change_cfm(struct hci_conn
*conn
, __u8 status
)
1083 read_lock(&hci_cb_list_lock
);
1084 list_for_each_entry(cb
, &hci_cb_list
, list
) {
1085 if (cb
->key_change_cfm
)
1086 cb
->key_change_cfm(conn
, status
);
1088 read_unlock(&hci_cb_list_lock
);
1091 static inline void hci_role_switch_cfm(struct hci_conn
*conn
, __u8 status
,
1096 read_lock(&hci_cb_list_lock
);
1097 list_for_each_entry(cb
, &hci_cb_list
, list
) {
1098 if (cb
->role_switch_cfm
)
1099 cb
->role_switch_cfm(conn
, status
, role
);
1101 read_unlock(&hci_cb_list_lock
);
1104 static inline bool eir_has_data_type(u8
*data
, size_t data_len
, u8 type
)
1111 while (parsed
< data_len
- 1) {
1112 u8 field_len
= data
[0];
1117 parsed
+= field_len
+ 1;
1119 if (parsed
> data_len
)
1122 if (data
[1] == type
)
1125 data
+= field_len
+ 1;
1131 static inline bool hci_bdaddr_is_rpa(bdaddr_t
*bdaddr
, u8 addr_type
)
1133 if (addr_type
!= 0x01)
1136 if ((bdaddr
->b
[5] & 0xc0) == 0x40)
1142 static inline struct smp_irk
*hci_get_irk(struct hci_dev
*hdev
,
1143 bdaddr_t
*bdaddr
, u8 addr_type
)
1145 if (!hci_bdaddr_is_rpa(bdaddr
, addr_type
))
1148 return hci_find_irk_by_rpa(hdev
, bdaddr
);
1151 int hci_register_cb(struct hci_cb
*hcb
);
1152 int hci_unregister_cb(struct hci_cb
*hcb
);
1154 struct hci_request
{
1155 struct hci_dev
*hdev
;
1156 struct sk_buff_head cmd_q
;
1158 /* If something goes wrong when building the HCI request, the error
1159 * value is stored in this field.
1164 void hci_req_init(struct hci_request
*req
, struct hci_dev
*hdev
);
1165 int hci_req_run(struct hci_request
*req
, hci_req_complete_t complete
);
1166 void hci_req_add(struct hci_request
*req
, u16 opcode
, u32 plen
,
1168 void hci_req_add_ev(struct hci_request
*req
, u16 opcode
, u32 plen
,
1169 const void *param
, u8 event
);
1170 void hci_req_cmd_complete(struct hci_dev
*hdev
, u16 opcode
, u8 status
);
1172 void hci_req_add_le_scan_disable(struct hci_request
*req
);
1173 void hci_req_add_le_passive_scan(struct hci_request
*req
);
1175 struct sk_buff
*__hci_cmd_sync(struct hci_dev
*hdev
, u16 opcode
, u32 plen
,
1176 const void *param
, u32 timeout
);
1177 struct sk_buff
*__hci_cmd_sync_ev(struct hci_dev
*hdev
, u16 opcode
, u32 plen
,
1178 const void *param
, u8 event
, u32 timeout
);
1180 int hci_send_cmd(struct hci_dev
*hdev
, __u16 opcode
, __u32 plen
,
1182 void hci_send_acl(struct hci_chan
*chan
, struct sk_buff
*skb
, __u16 flags
);
1183 void hci_send_sco(struct hci_conn
*conn
, struct sk_buff
*skb
);
1185 void *hci_sent_cmd_data(struct hci_dev
*hdev
, __u16 opcode
);
1187 /* ----- HCI Sockets ----- */
1188 void hci_send_to_sock(struct hci_dev
*hdev
, struct sk_buff
*skb
);
1189 void hci_send_to_control(struct sk_buff
*skb
, struct sock
*skip_sk
);
1190 void hci_send_to_monitor(struct hci_dev
*hdev
, struct sk_buff
*skb
);
1192 void hci_sock_dev_event(struct hci_dev
*hdev
, int event
);
1194 /* Management interface */
1195 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1196 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1197 BIT(BDADDR_LE_RANDOM))
1198 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1199 BIT(BDADDR_LE_PUBLIC) | \
1200 BIT(BDADDR_LE_RANDOM))
1202 /* These LE scan and inquiry parameters were chosen according to LE General
1203 * Discovery Procedure specification.
1205 #define DISCOV_LE_SCAN_WIN 0x12
1206 #define DISCOV_LE_SCAN_INT 0x12
1207 #define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240)
1208 #define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120)
1209 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1210 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1212 int mgmt_control(struct sock
*sk
, struct msghdr
*msg
, size_t len
);
1213 void mgmt_index_added(struct hci_dev
*hdev
);
1214 void mgmt_index_removed(struct hci_dev
*hdev
);
1215 void mgmt_set_powered_failed(struct hci_dev
*hdev
, int err
);
1216 int mgmt_powered(struct hci_dev
*hdev
, u8 powered
);
1217 void mgmt_discoverable_timeout(struct hci_dev
*hdev
);
1218 void mgmt_discoverable(struct hci_dev
*hdev
, u8 discoverable
);
1219 void mgmt_connectable(struct hci_dev
*hdev
, u8 connectable
);
1220 void mgmt_advertising(struct hci_dev
*hdev
, u8 advertising
);
1221 void mgmt_write_scan_failed(struct hci_dev
*hdev
, u8 scan
, u8 status
);
1222 void mgmt_new_link_key(struct hci_dev
*hdev
, struct link_key
*key
,
1224 void mgmt_device_connected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1225 u8 addr_type
, u32 flags
, u8
*name
, u8 name_len
,
1227 void mgmt_device_disconnected(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1228 u8 link_type
, u8 addr_type
, u8 reason
,
1229 bool mgmt_connected
);
1230 void mgmt_disconnect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1231 u8 link_type
, u8 addr_type
, u8 status
);
1232 void mgmt_connect_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1233 u8 addr_type
, u8 status
);
1234 void mgmt_pin_code_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 secure
);
1235 void mgmt_pin_code_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1237 void mgmt_pin_code_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1239 int mgmt_user_confirm_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1240 u8 link_type
, u8 addr_type
, u32 value
,
1242 int mgmt_user_confirm_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1243 u8 link_type
, u8 addr_type
, u8 status
);
1244 int mgmt_user_confirm_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1245 u8 link_type
, u8 addr_type
, u8 status
);
1246 int mgmt_user_passkey_request(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1247 u8 link_type
, u8 addr_type
);
1248 int mgmt_user_passkey_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1249 u8 link_type
, u8 addr_type
, u8 status
);
1250 int mgmt_user_passkey_neg_reply_complete(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1251 u8 link_type
, u8 addr_type
, u8 status
);
1252 int mgmt_user_passkey_notify(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1253 u8 link_type
, u8 addr_type
, u32 passkey
,
1255 void mgmt_auth_failed(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1256 u8 addr_type
, u8 status
);
1257 void mgmt_auth_enable_complete(struct hci_dev
*hdev
, u8 status
);
1258 void mgmt_ssp_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1259 void mgmt_sc_enable_complete(struct hci_dev
*hdev
, u8 enable
, u8 status
);
1260 void mgmt_set_class_of_dev_complete(struct hci_dev
*hdev
, u8
*dev_class
,
1262 void mgmt_set_local_name_complete(struct hci_dev
*hdev
, u8
*name
, u8 status
);
1263 void mgmt_read_local_oob_data_complete(struct hci_dev
*hdev
, u8
*hash192
,
1264 u8
*randomizer192
, u8
*hash256
,
1265 u8
*randomizer256
, u8 status
);
1266 void mgmt_device_found(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1267 u8 addr_type
, u8
*dev_class
, s8 rssi
, u8 cfm_name
,
1268 u8 ssp
, u8
*eir
, u16 eir_len
);
1269 void mgmt_remote_name(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 link_type
,
1270 u8 addr_type
, s8 rssi
, u8
*name
, u8 name_len
);
1271 void mgmt_discovering(struct hci_dev
*hdev
, u8 discovering
);
1272 int mgmt_device_blocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1273 int mgmt_device_unblocked(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
, u8 type
);
1274 void mgmt_new_ltk(struct hci_dev
*hdev
, struct smp_ltk
*key
, bool persistent
);
1275 void mgmt_new_irk(struct hci_dev
*hdev
, struct smp_irk
*irk
);
1276 void mgmt_new_csrk(struct hci_dev
*hdev
, struct smp_csrk
*csrk
,
1278 void mgmt_reenable_advertising(struct hci_dev
*hdev
);
1279 void mgmt_smp_complete(struct hci_conn
*conn
, bool complete
);
1281 /* HCI info for socket */
1282 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1286 struct hci_dev
*hdev
;
1287 struct hci_filter filter
;
1289 unsigned short channel
;
1292 /* HCI security filter */
1293 #define HCI_SFLT_MAX_OGF 5
1295 struct hci_sec_filter
{
1297 __u32 event_mask
[2];
1298 __u32 ocf_mask
[HCI_SFLT_MAX_OGF
+ 1][4];
1301 /* ----- HCI requests ----- */
1302 #define HCI_REQ_DONE 0
1303 #define HCI_REQ_PEND 1
1304 #define HCI_REQ_CANCELED 2
1306 #define hci_req_lock(d) mutex_lock(&d->req_lock)
1307 #define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1309 void hci_le_conn_update(struct hci_conn
*conn
, u16 min
, u16 max
,
1310 u16 latency
, u16 to_multiplier
);
1311 void hci_le_start_enc(struct hci_conn
*conn
, __le16 ediv
, __le64 rand
,
1314 int hci_update_random_address(struct hci_request
*req
, bool require_privacy
,
1316 void hci_copy_identity_address(struct hci_dev
*hdev
, bdaddr_t
*bdaddr
,
1319 #define SCO_AIRMODE_MASK 0x0003
1320 #define SCO_AIRMODE_CVSD 0x0000
1321 #define SCO_AIRMODE_TRANSP 0x0003
1323 #endif /* __HCI_CORE_H */