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>
29 #include <net/bluetooth/hci_sock.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 */
72 bdaddr_t last_adv_addr;
73 u8 last_adv_addr_type;
76 u8 last_adv_data[HCI_MAX_AD_LENGTH];
78 bool report_invalid_rssi;
82 unsigned long scan_start;
83 unsigned long scan_duration;
86 struct hci_conn_hash {
87 struct list_head list;
92 unsigned int le_num_slave;
96 struct list_head list;
102 struct list_head list;
116 struct list_head list;
129 struct list_head list;
138 struct list_head list;
142 u8 val[HCI_LINK_KEY_SIZE];
147 struct list_head list;
157 #define HCI_MAX_SHORT_NAME_LENGTH 10
159 /* Default LE RPA expiry time, 15 minutes */
160 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60)
162 /* Default min/max age of connection information (1s/3s) */
163 #define DEFAULT_CONN_INFO_MIN_AGE 1000
164 #define DEFAULT_CONN_INFO_MAX_AGE 3000
171 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
174 #define HCI_MAX_PAGES 3
176 #define NUM_REASSEMBLY 4
178 struct list_head list;
188 bdaddr_t public_addr;
189 bdaddr_t random_addr;
190 bdaddr_t static_addr;
192 __u8 dev_name[HCI_MAX_NAME_LENGTH];
193 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
194 __u8 eir[HCI_MAX_EIR_LENGTH];
199 __u8 features[HCI_MAX_PAGES][8];
201 __u8 le_white_list_size;
211 __u8 stored_max_keys;
212 __u8 stored_num_keys;
215 __u16 page_scan_interval;
216 __u16 page_scan_window;
218 __u8 le_adv_channel_map;
219 __u16 le_adv_min_interval;
220 __u16 le_adv_max_interval;
222 __u16 le_scan_interval;
223 __u16 le_scan_window;
224 __u16 le_conn_min_interval;
225 __u16 le_conn_max_interval;
226 __u16 le_conn_latency;
227 __u16 le_supv_timeout;
229 __u16 le_def_tx_time;
231 __u16 le_max_tx_time;
233 __u16 le_max_rx_time;
234 __u16 discov_interleaved_timeout;
235 __u16 conn_info_min_age;
236 __u16 conn_info_max_age;
252 __u16 sniff_min_interval;
253 __u16 sniff_max_interval;
258 __u32 amp_min_latency;
262 __u16 amp_assoc_size;
263 __u32 amp_max_flush_to;
264 __u32 amp_be_flush_to;
266 struct amp_assoc loc_assoc;
270 unsigned int auto_accept_delay;
272 unsigned long quirks;
275 unsigned int acl_cnt;
276 unsigned int sco_cnt;
279 unsigned int acl_mtu;
280 unsigned int sco_mtu;
282 unsigned int acl_pkts;
283 unsigned int sco_pkts;
284 unsigned int le_pkts;
291 unsigned long acl_last_tx;
292 unsigned long sco_last_tx;
293 unsigned long le_last_tx;
295 struct workqueue_struct *workqueue;
296 struct workqueue_struct *req_workqueue;
298 struct work_struct power_on;
299 struct delayed_work power_off;
300 struct work_struct error_reset;
302 __u16 discov_timeout;
303 struct delayed_work discov_off;
305 struct delayed_work service_cache;
307 struct delayed_work cmd_timer;
309 struct work_struct rx_work;
310 struct work_struct cmd_work;
311 struct work_struct tx_work;
313 struct sk_buff_head rx_q;
314 struct sk_buff_head raw_q;
315 struct sk_buff_head cmd_q;
317 struct sk_buff *recv_evt;
318 struct sk_buff *sent_cmd;
319 struct sk_buff *reassembly[NUM_REASSEMBLY];
321 struct mutex req_lock;
322 wait_queue_head_t req_wait_q;
327 void *smp_bredr_data;
329 struct discovery_state discovery;
330 struct hci_conn_hash conn_hash;
332 struct list_head mgmt_pending;
333 struct list_head blacklist;
334 struct list_head whitelist;
335 struct list_head uuids;
336 struct list_head link_keys;
337 struct list_head long_term_keys;
338 struct list_head identity_resolving_keys;
339 struct list_head remote_oob_data;
340 struct list_head le_white_list;
341 struct list_head le_conn_params;
342 struct list_head pend_le_conns;
343 struct list_head pend_le_reports;
345 struct hci_dev_stats stat;
349 struct dentry *debugfs;
353 struct rfkill *rfkill;
355 unsigned long dbg_flags;
356 unsigned long dev_flags;
358 struct delayed_work le_scan_disable;
359 struct delayed_work le_scan_restart;
362 __u8 adv_data[HCI_MAX_AD_LENGTH];
364 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH];
365 __u8 scan_rsp_data_len;
369 struct delayed_work rpa_expired;
372 int (*open)(struct hci_dev *hdev);
373 int (*close)(struct hci_dev *hdev);
374 int (*flush)(struct hci_dev *hdev);
375 int (*setup)(struct hci_dev *hdev);
376 int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
377 void (*notify)(struct hci_dev *hdev, unsigned int evt);
378 void (*hw_error)(struct hci_dev *hdev, u8 code);
379 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
382 #define HCI_PHY_HANDLE(handle) (handle & 0xff)
385 struct list_head list;
405 __u8 features[HCI_MAX_PAGES][8];
411 __u8 pending_sec_level;
415 __u32 passkey_notify;
416 __u8 passkey_entered;
420 __u16 le_conn_min_interval;
421 __u16 le_conn_max_interval;
422 __u16 le_conn_interval;
423 __u16 le_conn_latency;
424 __u16 le_supv_timeout;
425 __u8 le_adv_data[HCI_MAX_AD_LENGTH];
426 __u8 le_adv_data_len;
433 __u16 clock_accuracy;
435 unsigned long conn_info_timestamp;
443 struct sk_buff_head data_q;
444 struct list_head chan_list;
446 struct delayed_work disc_work;
447 struct delayed_work auto_accept_work;
448 struct delayed_work idle_work;
449 struct delayed_work le_conn_timeout;
452 struct dentry *debugfs;
454 struct hci_dev *hdev;
457 struct amp_mgr *amp_mgr;
459 struct hci_conn *link;
461 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
462 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
463 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
467 struct list_head list;
469 struct hci_conn *conn;
470 struct sk_buff_head data_q;
475 struct hci_conn_params {
476 struct list_head list;
477 struct list_head action;
482 u16 conn_min_interval;
483 u16 conn_max_interval;
485 u16 supervision_timeout;
488 HCI_AUTO_CONN_DISABLED,
489 HCI_AUTO_CONN_REPORT,
490 HCI_AUTO_CONN_DIRECT,
491 HCI_AUTO_CONN_ALWAYS,
492 HCI_AUTO_CONN_LINK_LOSS,
495 struct hci_conn *conn;
498 extern struct list_head hci_dev_list;
499 extern struct list_head hci_cb_list;
500 extern rwlock_t hci_dev_list_lock;
501 extern rwlock_t hci_cb_list_lock;
503 /* ----- HCI interface to upper protocols ----- */
504 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
505 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
506 int l2cap_disconn_ind(struct hci_conn *hcon);
507 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
508 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
509 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
511 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
512 void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
513 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
514 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
516 /* ----- Inquiry cache ----- */
517 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
518 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
520 static inline void discovery_init(struct hci_dev *hdev)
522 hdev->discovery.state = DISCOVERY_STOPPED;
523 INIT_LIST_HEAD(&hdev->discovery.all);
524 INIT_LIST_HEAD(&hdev->discovery.unknown);
525 INIT_LIST_HEAD(&hdev->discovery.resolve);
526 hdev->discovery.report_invalid_rssi = true;
527 hdev->discovery.rssi = HCI_RSSI_INVALID;
530 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
532 hdev->discovery.report_invalid_rssi = true;
533 hdev->discovery.rssi = HCI_RSSI_INVALID;
534 hdev->discovery.uuid_count = 0;
535 kfree(hdev->discovery.uuids);
536 hdev->discovery.uuids = NULL;
537 hdev->discovery.scan_start = 0;
538 hdev->discovery.scan_duration = 0;
541 bool hci_discovery_active(struct hci_dev *hdev);
543 void hci_discovery_set_state(struct hci_dev *hdev, int state);
545 static inline int inquiry_cache_empty(struct hci_dev *hdev)
547 return list_empty(&hdev->discovery.all);
550 static inline long inquiry_cache_age(struct hci_dev *hdev)
552 struct discovery_state *c = &hdev->discovery;
553 return jiffies - c->timestamp;
556 static inline long inquiry_entry_age(struct inquiry_entry *e)
558 return jiffies - e->timestamp;
561 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
563 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
565 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
568 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
569 struct inquiry_entry *ie);
570 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
572 void hci_inquiry_cache_flush(struct hci_dev *hdev);
574 /* ----- HCI Connections ----- */
577 HCI_CONN_REAUTH_PEND,
578 HCI_CONN_ENCRYPT_PEND,
579 HCI_CONN_RSWITCH_PEND,
580 HCI_CONN_MODE_CHANGE_PEND,
581 HCI_CONN_SCO_SETUP_PEND,
582 HCI_CONN_MGMT_CONNECTED,
583 HCI_CONN_SSP_ENABLED,
593 HCI_CONN_STK_ENCRYPT,
594 HCI_CONN_AUTH_INITIATOR,
596 HCI_CONN_PARAM_REMOVAL_PEND,
597 HCI_CONN_NEW_LINK_KEY,
600 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
602 struct hci_dev *hdev = conn->hdev;
603 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
604 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
607 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
609 struct hci_dev *hdev = conn->hdev;
610 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) &&
611 test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
614 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
616 struct hci_conn_hash *h = &hdev->conn_hash;
617 list_add_rcu(&c->list, &h->list);
627 if (c->role == HCI_ROLE_SLAVE)
637 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
639 struct hci_conn_hash *h = &hdev->conn_hash;
641 list_del_rcu(&c->list);
653 if (c->role == HCI_ROLE_SLAVE)
663 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
665 struct hci_conn_hash *h = &hdev->conn_hash;
681 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
683 struct hci_conn_hash *c = &hdev->conn_hash;
685 return c->acl_num + c->amp_num + c->sco_num + c->le_num;
688 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
690 struct hci_conn_hash *h = &hdev->conn_hash;
692 __u8 type = INVALID_LINK;
696 list_for_each_entry_rcu(c, &h->list, list) {
697 if (c->handle == handle) {
708 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
711 struct hci_conn_hash *h = &hdev->conn_hash;
716 list_for_each_entry_rcu(c, &h->list, list) {
717 if (c->handle == handle) {
727 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
728 __u8 type, bdaddr_t *ba)
730 struct hci_conn_hash *h = &hdev->conn_hash;
735 list_for_each_entry_rcu(c, &h->list, list) {
736 if (c->type == type && !bacmp(&c->dst, ba)) {
747 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
748 __u8 type, __u16 state)
750 struct hci_conn_hash *h = &hdev->conn_hash;
755 list_for_each_entry_rcu(c, &h->list, list) {
756 if (c->type == type && c->state == state) {
767 int hci_disconnect(struct hci_conn *conn, __u8 reason);
768 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
769 void hci_sco_setup(struct hci_conn *conn, __u8 status);
771 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
773 int hci_conn_del(struct hci_conn *conn);
774 void hci_conn_hash_flush(struct hci_dev *hdev);
775 void hci_conn_check_pending(struct hci_dev *hdev);
777 struct hci_chan *hci_chan_create(struct hci_conn *conn);
778 void hci_chan_del(struct hci_chan *chan);
779 void hci_chan_list_flush(struct hci_conn *conn);
780 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
782 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
783 u8 dst_type, u8 sec_level, u16 conn_timeout,
785 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
786 u8 sec_level, u8 auth_type);
787 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
789 int hci_conn_check_link_mode(struct hci_conn *conn);
790 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
791 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
793 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
795 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
797 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
800 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
801 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
802 * working or anything else. They just guarantee that the object is available
803 * and can be dereferenced. So you can use its locks, local variables and any
804 * other constant data.
805 * Before accessing runtime data, you _must_ lock the object and then check that
806 * it is still running. As soon as you release the locks, the connection might
807 * get dropped, though.
809 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
810 * how long the underlying connection is held. So every channel that runs on the
811 * hci_conn object calls this to prevent the connection from disappearing. As
812 * long as you hold a device, you must also guarantee that you have a valid
813 * reference to the device via hci_conn_get() (or the initial reference from
815 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
816 * break because nobody cares for that. But this means, we cannot use
817 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
820 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
822 get_device(&conn->dev);
826 static inline void hci_conn_put(struct hci_conn *conn)
828 put_device(&conn->dev);
831 static inline void hci_conn_hold(struct hci_conn *conn)
833 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
835 atomic_inc(&conn->refcnt);
836 cancel_delayed_work(&conn->disc_work);
839 static inline void hci_conn_drop(struct hci_conn *conn)
841 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
843 if (atomic_dec_and_test(&conn->refcnt)) {
846 switch (conn->type) {
849 cancel_delayed_work(&conn->idle_work);
850 if (conn->state == BT_CONNECTED) {
851 timeo = conn->disc_timeout;
860 timeo = conn->disc_timeout;
868 cancel_delayed_work(&conn->disc_work);
869 queue_delayed_work(conn->hdev->workqueue,
870 &conn->disc_work, timeo);
874 /* ----- HCI Devices ----- */
875 static inline void hci_dev_put(struct hci_dev *d)
877 BT_DBG("%s orig refcnt %d", d->name,
878 atomic_read(&d->dev.kobj.kref.refcount));
883 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
885 BT_DBG("%s orig refcnt %d", d->name,
886 atomic_read(&d->dev.kobj.kref.refcount));
892 #define hci_dev_lock(d) mutex_lock(&d->lock)
893 #define hci_dev_unlock(d) mutex_unlock(&d->lock)
895 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
896 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
898 static inline void *hci_get_drvdata(struct hci_dev *hdev)
900 return dev_get_drvdata(&hdev->dev);
903 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
905 dev_set_drvdata(&hdev->dev, data);
908 struct hci_dev *hci_dev_get(int index);
909 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
911 struct hci_dev *hci_alloc_dev(void);
912 void hci_free_dev(struct hci_dev *hdev);
913 int hci_register_dev(struct hci_dev *hdev);
914 void hci_unregister_dev(struct hci_dev *hdev);
915 int hci_suspend_dev(struct hci_dev *hdev);
916 int hci_resume_dev(struct hci_dev *hdev);
917 int hci_reset_dev(struct hci_dev *hdev);
918 int hci_dev_open(__u16 dev);
919 int hci_dev_close(__u16 dev);
920 int hci_dev_reset(__u16 dev);
921 int hci_dev_reset_stat(__u16 dev);
922 int hci_dev_cmd(unsigned int cmd, void __user *arg);
923 int hci_get_dev_list(void __user *arg);
924 int hci_get_dev_info(void __user *arg);
925 int hci_get_conn_list(void __user *arg);
926 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
927 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
928 int hci_inquiry(void __user *arg);
930 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
931 bdaddr_t *bdaddr, u8 type);
932 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
933 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
934 void hci_bdaddr_list_clear(struct list_head *list);
936 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
937 bdaddr_t *addr, u8 addr_type);
938 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
939 bdaddr_t *addr, u8 addr_type);
940 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
941 void hci_conn_params_clear_all(struct hci_dev *hdev);
942 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
944 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
948 void hci_uuids_clear(struct hci_dev *hdev);
950 void hci_link_keys_clear(struct hci_dev *hdev);
951 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
952 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
953 bdaddr_t *bdaddr, u8 *val, u8 type,
954 u8 pin_len, bool *persistent);
955 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
956 u8 addr_type, u8 type, u8 authenticated,
957 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
958 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
959 u8 addr_type, u8 role);
960 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
961 void hci_smp_ltks_clear(struct hci_dev *hdev);
962 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
964 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
965 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
967 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
968 u8 addr_type, u8 val[16], bdaddr_t *rpa);
969 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
970 void hci_smp_irks_clear(struct hci_dev *hdev);
972 void hci_remote_oob_data_clear(struct hci_dev *hdev);
973 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
974 bdaddr_t *bdaddr, u8 bdaddr_type);
975 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
976 u8 bdaddr_type, u8 *hash192, u8 *rand192,
977 u8 *hash256, u8 *rand256);
978 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
981 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
983 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
984 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
986 void hci_init_sysfs(struct hci_dev *hdev);
987 void hci_conn_init_sysfs(struct hci_conn *conn);
988 void hci_conn_add_sysfs(struct hci_conn *conn);
989 void hci_conn_del_sysfs(struct hci_conn *conn);
991 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
993 /* ----- LMP capabilities ----- */
994 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
995 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
996 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
997 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
998 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
999 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
1000 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
1001 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
1002 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
1003 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1004 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1005 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
1006 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1007 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1008 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
1009 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
1010 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1011 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
1012 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT)
1014 /* ----- Extended LMP capabilities ----- */
1015 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER)
1016 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE)
1017 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1018 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN)
1019 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC)
1020 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING)
1022 /* ----- Host capabilities ----- */
1023 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
1024 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC)
1025 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
1026 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1028 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
1029 !test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
1030 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \
1031 test_bit(HCI_SC_ENABLED, &(dev)->dev_flags))
1033 /* ----- HCI protocols ----- */
1034 #define HCI_PROTO_DEFER 0x01
1036 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1037 __u8 type, __u8 *flags)
1041 return l2cap_connect_ind(hdev, bdaddr);
1045 return sco_connect_ind(hdev, bdaddr, flags);
1048 BT_ERR("unknown link type %d", type);
1053 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
1055 switch (conn->type) {
1058 l2cap_connect_cfm(conn, status);
1063 sco_connect_cfm(conn, status);
1067 BT_ERR("unknown link type %d", conn->type);
1071 if (conn->connect_cfm_cb)
1072 conn->connect_cfm_cb(conn, status);
1075 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1077 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1078 return HCI_ERROR_REMOTE_USER_TERM;
1080 return l2cap_disconn_ind(conn);
1083 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
1085 switch (conn->type) {
1088 l2cap_disconn_cfm(conn, reason);
1093 sco_disconn_cfm(conn, reason);
1096 /* L2CAP would be handled for BREDR chan */
1101 BT_ERR("unknown link type %d", conn->type);
1105 if (conn->disconn_cfm_cb)
1106 conn->disconn_cfm_cb(conn, reason);
1109 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
1113 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1116 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1119 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1120 l2cap_security_cfm(conn, status, encrypt);
1122 if (conn->security_cfm_cb)
1123 conn->security_cfm_cb(conn, status);
1126 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
1129 if (conn->type != ACL_LINK && conn->type != LE_LINK)
1132 l2cap_security_cfm(conn, status, encrypt);
1134 if (conn->security_cfm_cb)
1135 conn->security_cfm_cb(conn, status);
1138 /* ----- HCI callbacks ----- */
1140 struct list_head list;
1144 void (*security_cfm) (struct hci_conn *conn, __u8 status,
1146 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
1147 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1150 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1155 hci_proto_auth_cfm(conn, status);
1157 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1160 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1162 read_lock(&hci_cb_list_lock);
1163 list_for_each_entry(cb, &hci_cb_list, list) {
1164 if (cb->security_cfm)
1165 cb->security_cfm(conn, status, encrypt);
1167 read_unlock(&hci_cb_list_lock);
1170 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
1175 if (conn->sec_level == BT_SECURITY_SDP)
1176 conn->sec_level = BT_SECURITY_LOW;
1178 if (conn->pending_sec_level > conn->sec_level)
1179 conn->sec_level = conn->pending_sec_level;
1181 hci_proto_encrypt_cfm(conn, status, encrypt);
1183 read_lock(&hci_cb_list_lock);
1184 list_for_each_entry(cb, &hci_cb_list, list) {
1185 if (cb->security_cfm)
1186 cb->security_cfm(conn, status, encrypt);
1188 read_unlock(&hci_cb_list_lock);
1191 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1195 read_lock(&hci_cb_list_lock);
1196 list_for_each_entry(cb, &hci_cb_list, list) {
1197 if (cb->key_change_cfm)
1198 cb->key_change_cfm(conn, status);
1200 read_unlock(&hci_cb_list_lock);
1203 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1208 read_lock(&hci_cb_list_lock);
1209 list_for_each_entry(cb, &hci_cb_list, list) {
1210 if (cb->role_switch_cfm)
1211 cb->role_switch_cfm(conn, status, role);
1213 read_unlock(&hci_cb_list_lock);
1216 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
1223 while (parsed < data_len - 1) {
1224 u8 field_len = data[0];
1229 parsed += field_len + 1;
1231 if (parsed > data_len)
1234 if (data[1] == type)
1237 data += field_len + 1;
1243 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1245 if (addr_type != ADDR_LE_DEV_RANDOM)
1248 if ((bdaddr->b[5] & 0xc0) == 0x40)
1254 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1256 if (addr_type == ADDR_LE_DEV_PUBLIC)
1259 /* Check for Random Static address type */
1260 if ((addr->b[5] & 0xc0) == 0xc0)
1266 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1267 bdaddr_t *bdaddr, u8 addr_type)
1269 if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1272 return hci_find_irk_by_rpa(hdev, bdaddr);
1275 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1280 if (min > max || min < 6 || max > 3200)
1283 if (to_multiplier < 10 || to_multiplier > 3200)
1286 if (max >= to_multiplier * 8)
1289 max_latency = (to_multiplier * 8 / max) - 1;
1290 if (latency > 499 || latency > max_latency)
1296 int hci_register_cb(struct hci_cb *hcb);
1297 int hci_unregister_cb(struct hci_cb *hcb);
1299 bool hci_req_pending(struct hci_dev *hdev);
1301 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1302 const void *param, u32 timeout);
1303 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1304 const void *param, u8 event, u32 timeout);
1306 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1308 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1309 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1311 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1313 /* ----- HCI Sockets ----- */
1314 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1315 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1316 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1318 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1320 /* Management interface */
1321 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1322 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1323 BIT(BDADDR_LE_RANDOM))
1324 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1325 BIT(BDADDR_LE_PUBLIC) | \
1326 BIT(BDADDR_LE_RANDOM))
1328 /* These LE scan and inquiry parameters were chosen according to LE General
1329 * Discovery Procedure specification.
1331 #define DISCOV_LE_SCAN_WIN 0x12
1332 #define DISCOV_LE_SCAN_INT 0x12
1333 #define DISCOV_LE_TIMEOUT 10240 /* msec */
1334 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */
1335 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1336 #define DISCOV_BREDR_INQUIRY_LEN 0x08
1337 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */
1339 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1340 int mgmt_new_settings(struct hci_dev *hdev);
1341 void mgmt_index_added(struct hci_dev *hdev);
1342 void mgmt_index_removed(struct hci_dev *hdev);
1343 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1344 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1345 int mgmt_update_adv_data(struct hci_dev *hdev);
1346 void mgmt_discoverable_timeout(struct hci_dev *hdev);
1347 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1349 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1350 u32 flags, u8 *name, u8 name_len);
1351 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1352 u8 link_type, u8 addr_type, u8 reason,
1353 bool mgmt_connected);
1354 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1355 u8 link_type, u8 addr_type, u8 status);
1356 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1357 u8 addr_type, u8 status);
1358 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1359 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1361 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1363 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1364 u8 link_type, u8 addr_type, u32 value,
1366 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1367 u8 link_type, u8 addr_type, u8 status);
1368 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1369 u8 link_type, u8 addr_type, u8 status);
1370 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1371 u8 link_type, u8 addr_type);
1372 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1373 u8 link_type, u8 addr_type, u8 status);
1374 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1375 u8 link_type, u8 addr_type, u8 status);
1376 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1377 u8 link_type, u8 addr_type, u32 passkey,
1379 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1380 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1381 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1382 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1384 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1385 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192,
1386 u8 *rand192, u8 *hash256, u8 *rand256,
1388 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1389 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1390 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1391 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1392 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1393 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1394 bool mgmt_powering_down(struct hci_dev *hdev);
1395 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1396 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk);
1397 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1399 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1400 u8 bdaddr_type, u8 store_hint, u16 min_interval,
1401 u16 max_interval, u16 latency, u16 timeout);
1402 void mgmt_reenable_advertising(struct hci_dev *hdev);
1403 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1405 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1407 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1410 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1413 #define SCO_AIRMODE_MASK 0x0003
1414 #define SCO_AIRMODE_CVSD 0x0000
1415 #define SCO_AIRMODE_TRANSP 0x0003
1417 #endif /* __HCI_CORE_H */