include/net/bluetooth/hci_core.h

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   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;
  10
  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.
  19
  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.
  23 */
  24
  25 #ifndef __HCI_CORE_H
  26 #define __HCI_CORE_H
  27
  28 #include <net/bluetooth/hci.h>
  29
  30 /* HCI priority */
  31 #define HCI_PRIO_MAX    7
  32
  33 /* HCI Core structures */
  34 struct inquiry_data {
  35         bdaddr_t        bdaddr;
  36         __u8            pscan_rep_mode;
  37         __u8            pscan_period_mode;
  38         __u8            pscan_mode;
  39         __u8            dev_class[3];
  40         __le16          clock_offset;
  41         __s8            rssi;
  42         __u8            ssp_mode;
  43 };
  44
  45 struct inquiry_entry {
  46         struct list_head        all;            /* inq_cache.all */
  47         struct list_head        list;           /* unknown or resolve */
  48         enum {
  49                 NAME_NOT_KNOWN,
  50                 NAME_NEEDED,
  51                 NAME_PENDING,
  52                 NAME_KNOWN,
  53         } name_state;
  54         __u32                   timestamp;
  55         struct inquiry_data     data;
  56 };
  57
  58 struct discovery_state {
  59         int                     type;
  60         enum {
  61                 DISCOVERY_STOPPED,
  62                 DISCOVERY_STARTING,
  63                 DISCOVERY_FINDING,
  64                 DISCOVERY_RESOLVING,
  65                 DISCOVERY_STOPPING,
  66         } 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 */
  70         __u32                   timestamp;
  71 };
  72
  73 struct hci_conn_hash {
  74         struct list_head list;
  75         unsigned int     acl_num;
  76         unsigned int     amp_num;
  77         unsigned int     sco_num;
  78         unsigned int     le_num;
  79 };
  80
  81 struct bdaddr_list {
  82         struct list_head list;
  83         bdaddr_t bdaddr;
  84 };
  85
  86 struct bt_uuid {
  87         struct list_head list;
  88         u8 uuid[16];
  89         u8 size;
  90         u8 svc_hint;
  91 };
  92
  93 struct smp_ltk {
  94         struct list_head list;
  95         bdaddr_t bdaddr;
  96         u8 bdaddr_type;
  97         u8 authenticated;
  98         u8 type;
  99         u8 enc_size;
 100         __le16 ediv;
 101         u8 rand[8];
 102         u8 val[16];
 103 } __packed;
 104
 105 struct link_key {
 106         struct list_head list;
 107         bdaddr_t bdaddr;
 108         u8 type;
 109         u8 val[HCI_LINK_KEY_SIZE];
 110         u8 pin_len;
 111 };
 112
 113 struct oob_data {
 114         struct list_head list;
 115         bdaddr_t bdaddr;
 116         u8 hash[16];
 117         u8 randomizer[16];
 118 };
 119
 120 struct le_scan_params {
 121         u8 type;
 122         u16 interval;
 123         u16 window;
 124         int timeout;
 125 };
 126
 127 #define HCI_MAX_SHORT_NAME_LENGTH       10
 128
 129 struct amp_assoc {
 130         __u16   len;
 131         __u16   offset;
 132         __u16   rem_len;
 133         __u16   len_so_far;
 134         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 135 };
 136
 137 #define NUM_REASSEMBLY 4
 138 struct hci_dev {
 139         struct list_head list;
 140         struct mutex    lock;
 141
 142         char            name[8];
 143         unsigned long   flags;
 144         __u16           id;
 145         __u8            bus;
 146         __u8            dev_type;
 147         bdaddr_t        bdaddr;
 148         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 149         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 150         __u8            eir[HCI_MAX_EIR_LENGTH];
 151         __u8            dev_class[3];
 152         __u8            major_class;
 153         __u8            minor_class;
 154         __u8            features[8];
 155         __u8            host_features[8];
 156         __u8            le_features[8];
 157         __u8            le_white_list_size;
 158         __u8            le_states[8];
 159         __u8            commands[64];
 160         __u8            hci_ver;
 161         __u16           hci_rev;
 162         __u8            lmp_ver;
 163         __u16           manufacturer;
 164         __u16           lmp_subver;
 165         __u16           voice_setting;
 166         __u8            io_capability;
 167         __s8            inq_tx_power;
 168         __u16           page_scan_interval;
 169         __u16           page_scan_window;
 170         __u8            page_scan_type;
 171
 172         __u16           devid_source;
 173         __u16           devid_vendor;
 174         __u16           devid_product;
 175         __u16           devid_version;
 176
 177         __u16           pkt_type;
 178         __u16           esco_type;
 179         __u16           link_policy;
 180         __u16           link_mode;
 181
 182         __u32           idle_timeout;
 183         __u16           sniff_min_interval;
 184         __u16           sniff_max_interval;
 185
 186         __u8            amp_status;
 187         __u32           amp_total_bw;
 188         __u32           amp_max_bw;
 189         __u32           amp_min_latency;
 190         __u32           amp_max_pdu;
 191         __u8            amp_type;
 192         __u16           amp_pal_cap;
 193         __u16           amp_assoc_size;
 194         __u32           amp_max_flush_to;
 195         __u32           amp_be_flush_to;
 196
 197         struct amp_assoc        loc_assoc;
 198
 199         __u8            flow_ctl_mode;
 200
 201         unsigned int    auto_accept_delay;
 202
 203         unsigned long   quirks;
 204
 205         atomic_t        cmd_cnt;
 206         unsigned int    acl_cnt;
 207         unsigned int    sco_cnt;
 208         unsigned int    le_cnt;
 209
 210         unsigned int    acl_mtu;
 211         unsigned int    sco_mtu;
 212         unsigned int    le_mtu;
 213         unsigned int    acl_pkts;
 214         unsigned int    sco_pkts;
 215         unsigned int    le_pkts;
 216
 217         __u16           block_len;
 218         __u16           block_mtu;
 219         __u16           num_blocks;
 220         __u16           block_cnt;
 221
 222         unsigned long   acl_last_tx;
 223         unsigned long   sco_last_tx;
 224         unsigned long   le_last_tx;
 225
 226         struct workqueue_struct *workqueue;
 227         struct workqueue_struct *req_workqueue;
 228
 229         struct work_struct      power_on;
 230         struct delayed_work     power_off;
 231
 232         __u16                   discov_timeout;
 233         struct delayed_work     discov_off;
 234
 235         struct delayed_work     service_cache;
 236
 237         struct timer_list       cmd_timer;
 238
 239         struct work_struct      rx_work;
 240         struct work_struct      cmd_work;
 241         struct work_struct      tx_work;
 242
 243         struct sk_buff_head     rx_q;
 244         struct sk_buff_head     raw_q;
 245         struct sk_buff_head     cmd_q;
 246
 247         struct sk_buff          *sent_cmd;
 248         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 249
 250         struct mutex            req_lock;
 251         wait_queue_head_t       req_wait_q;
 252         __u32                   req_status;
 253         __u32                   req_result;
 254
 255         struct list_head        mgmt_pending;
 256
 257         struct discovery_state  discovery;
 258         struct hci_conn_hash    conn_hash;
 259         struct list_head        blacklist;
 260
 261         struct list_head        uuids;
 262
 263         struct list_head        link_keys;
 264
 265         struct list_head        long_term_keys;
 266
 267         struct list_head        remote_oob_data;
 268
 269         struct hci_dev_stats    stat;
 270
 271         struct sk_buff_head     driver_init;
 272
 273         atomic_t                promisc;
 274
 275         struct dentry           *debugfs;
 276
 277         struct device           dev;
 278
 279         struct rfkill           *rfkill;
 280
 281         unsigned long           dev_flags;
 282
 283         struct delayed_work     le_scan_disable;
 284
 285         struct work_struct      le_scan;
 286         struct le_scan_params   le_scan_params;
 287
 288         __s8                    adv_tx_power;
 289         __u8                    adv_data[HCI_MAX_AD_LENGTH];
 290         __u8                    adv_data_len;
 291
 292         int (*open)(struct hci_dev *hdev);
 293         int (*close)(struct hci_dev *hdev);
 294         int (*flush)(struct hci_dev *hdev);
 295         int (*send)(struct sk_buff *skb);
 296         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 297         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 298 };
 299
 300 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 301
 302 struct hci_conn {
 303         struct list_head list;
 304
 305         atomic_t        refcnt;
 306
 307         bdaddr_t        dst;
 308         __u8            dst_type;
 309         __u16           handle;
 310         __u16           state;
 311         __u8            mode;
 312         __u8            type;
 313         bool            out;
 314         __u8            attempt;
 315         __u8            dev_class[3];
 316         __u8            features[8];
 317         __u16           interval;
 318         __u16           pkt_type;
 319         __u16           link_policy;
 320         __u32           link_mode;
 321         __u8            key_type;
 322         __u8            auth_type;
 323         __u8            sec_level;
 324         __u8            pending_sec_level;
 325         __u8            pin_length;
 326         __u8            enc_key_size;
 327         __u8            io_capability;
 328         __u32           passkey_notify;
 329         __u8            passkey_entered;
 330         __u16           disc_timeout;
 331         unsigned long   flags;
 332
 333         __u8            remote_cap;
 334         __u8            remote_auth;
 335         __u8            remote_id;
 336         bool            flush_key;
 337
 338         unsigned int    sent;
 339
 340         struct sk_buff_head data_q;
 341         struct list_head chan_list;
 342
 343         struct delayed_work disc_work;
 344         struct timer_list idle_timer;
 345         struct timer_list auto_accept_timer;
 346
 347         struct device   dev;
 348         atomic_t        devref;
 349
 350         struct hci_dev  *hdev;
 351         void            *l2cap_data;
 352         void            *sco_data;
 353         void            *smp_conn;
 354         struct amp_mgr  *amp_mgr;
 355
 356         struct hci_conn *link;
 357
 358         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 359         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 360         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 361 };
 362
 363 struct hci_chan {
 364         struct list_head list;
 365         __u16 handle;
 366         struct hci_conn *conn;
 367         struct sk_buff_head data_q;
 368         unsigned int    sent;
 369         __u8            state;
 370 };
 371
 372 extern struct list_head hci_dev_list;
 373 extern struct list_head hci_cb_list;
 374 extern rwlock_t hci_dev_list_lock;
 375 extern rwlock_t hci_cb_list_lock;
 376
 377 /* ----- HCI interface to upper protocols ----- */
 378 extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 379 extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
 380 extern int l2cap_disconn_ind(struct hci_conn *hcon);
 381 extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
 382 extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
 383 extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb,
 384                               u16 flags);
 385
 386 extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 387 extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
 388 extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
 389 extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 390
 391 /* ----- Inquiry cache ----- */
 392 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 393 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 394
 395 static inline void discovery_init(struct hci_dev *hdev)
 396 {
 397         hdev->discovery.state = DISCOVERY_STOPPED;
 398         INIT_LIST_HEAD(&hdev->discovery.all);
 399         INIT_LIST_HEAD(&hdev->discovery.unknown);
 400         INIT_LIST_HEAD(&hdev->discovery.resolve);
 401 }
 402
 403 bool hci_discovery_active(struct hci_dev *hdev);
 404
 405 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 406
 407 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 408 {
 409         return list_empty(&hdev->discovery.all);
 410 }
 411
 412 static inline long inquiry_cache_age(struct hci_dev *hdev)
 413 {
 414         struct discovery_state *c = &hdev->discovery;
 415         return jiffies - c->timestamp;
 416 }
 417
 418 static inline long inquiry_entry_age(struct inquiry_entry *e)
 419 {
 420         return jiffies - e->timestamp;
 421 }
 422
 423 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 424                                                bdaddr_t *bdaddr);
 425 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 426                                                        bdaddr_t *bdaddr);
 427 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 428                                                        bdaddr_t *bdaddr,
 429                                                        int state);
 430 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 431                                       struct inquiry_entry *ie);
 432 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 433                               bool name_known, bool *ssp);
 434
 435 /* ----- HCI Connections ----- */
 436 enum {
 437         HCI_CONN_AUTH_PEND,
 438         HCI_CONN_REAUTH_PEND,
 439         HCI_CONN_ENCRYPT_PEND,
 440         HCI_CONN_RSWITCH_PEND,
 441         HCI_CONN_MODE_CHANGE_PEND,
 442         HCI_CONN_SCO_SETUP_PEND,
 443         HCI_CONN_LE_SMP_PEND,
 444         HCI_CONN_MGMT_CONNECTED,
 445         HCI_CONN_SSP_ENABLED,
 446         HCI_CONN_POWER_SAVE,
 447         HCI_CONN_REMOTE_OOB,
 448 };
 449
 450 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 451 {
 452         struct hci_dev *hdev = conn->hdev;
 453         return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
 454                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 455 }
 456
 457 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 458 {
 459         struct hci_conn_hash *h = &hdev->conn_hash;
 460         list_add_rcu(&c->list, &h->list);
 461         switch (c->type) {
 462         case ACL_LINK:
 463                 h->acl_num++;
 464                 break;
 465         case AMP_LINK:
 466                 h->amp_num++;
 467                 break;
 468         case LE_LINK:
 469                 h->le_num++;
 470                 break;
 471         case SCO_LINK:
 472         case ESCO_LINK:
 473                 h->sco_num++;
 474                 break;
 475         }
 476 }
 477
 478 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 479 {
 480         struct hci_conn_hash *h = &hdev->conn_hash;
 481
 482         list_del_rcu(&c->list);
 483         synchronize_rcu();
 484
 485         switch (c->type) {
 486         case ACL_LINK:
 487                 h->acl_num--;
 488                 break;
 489         case AMP_LINK:
 490                 h->amp_num--;
 491                 break;
 492         case LE_LINK:
 493                 h->le_num--;
 494                 break;
 495         case SCO_LINK:
 496         case ESCO_LINK:
 497                 h->sco_num--;
 498                 break;
 499         }
 500 }
 501
 502 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 503 {
 504         struct hci_conn_hash *h = &hdev->conn_hash;
 505         switch (type) {
 506         case ACL_LINK:
 507                 return h->acl_num;
 508         case AMP_LINK:
 509                 return h->amp_num;
 510         case LE_LINK:
 511                 return h->le_num;
 512         case SCO_LINK:
 513         case ESCO_LINK:
 514                 return h->sco_num;
 515         default:
 516                 return 0;
 517         }
 518 }
 519
 520 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 521                                                                 __u16 handle)
 522 {
 523         struct hci_conn_hash *h = &hdev->conn_hash;
 524         struct hci_conn  *c;
 525
 526         rcu_read_lock();
 527
 528         list_for_each_entry_rcu(c, &h->list, list) {
 529                 if (c->handle == handle) {
 530                         rcu_read_unlock();
 531                         return c;
 532                 }
 533         }
 534         rcu_read_unlock();
 535
 536         return NULL;
 537 }
 538
 539 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 540                                                         __u8 type, bdaddr_t *ba)
 541 {
 542         struct hci_conn_hash *h = &hdev->conn_hash;
 543         struct hci_conn  *c;
 544
 545         rcu_read_lock();
 546
 547         list_for_each_entry_rcu(c, &h->list, list) {
 548                 if (c->type == type && !bacmp(&c->dst, ba)) {
 549                         rcu_read_unlock();
 550                         return c;
 551                 }
 552         }
 553
 554         rcu_read_unlock();
 555
 556         return NULL;
 557 }
 558
 559 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 560                                                         __u8 type, __u16 state)
 561 {
 562         struct hci_conn_hash *h = &hdev->conn_hash;
 563         struct hci_conn  *c;
 564
 565         rcu_read_lock();
 566
 567         list_for_each_entry_rcu(c, &h->list, list) {
 568                 if (c->type == type && c->state == state) {
 569                         rcu_read_unlock();
 570                         return c;
 571                 }
 572         }
 573
 574         rcu_read_unlock();
 575
 576         return NULL;
 577 }
 578
 579 void hci_disconnect(struct hci_conn *conn, __u8 reason);
 580 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 581 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 582
 583 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 584 int hci_conn_del(struct hci_conn *conn);
 585 void hci_conn_hash_flush(struct hci_dev *hdev);
 586 void hci_conn_check_pending(struct hci_dev *hdev);
 587 void hci_conn_accept(struct hci_conn *conn, int mask);
 588
 589 struct hci_chan *hci_chan_create(struct hci_conn *conn);
 590 void hci_chan_del(struct hci_chan *chan);
 591 void hci_chan_list_flush(struct hci_conn *conn);
 592 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
 593
 594 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 595                              __u8 dst_type, __u8 sec_level, __u8 auth_type);
 596 int hci_conn_check_link_mode(struct hci_conn *conn);
 597 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 598 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 599 int hci_conn_change_link_key(struct hci_conn *conn);
 600 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 601
 602 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 603
 604 void hci_conn_hold_device(struct hci_conn *conn);
 605 void hci_conn_put_device(struct hci_conn *conn);
 606
 607 static inline void hci_conn_hold(struct hci_conn *conn)
 608 {
 609         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
 610
 611         atomic_inc(&conn->refcnt);
 612         cancel_delayed_work(&conn->disc_work);
 613 }
 614
 615 static inline void hci_conn_put(struct hci_conn *conn)
 616 {
 617         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
 618
 619         if (atomic_dec_and_test(&conn->refcnt)) {
 620                 unsigned long timeo;
 621
 622                 switch (conn->type) {
 623                 case ACL_LINK:
 624                 case LE_LINK:
 625                         del_timer(&conn->idle_timer);
 626                         if (conn->state == BT_CONNECTED) {
 627                                 timeo = conn->disc_timeout;
 628                                 if (!conn->out)
 629                                         timeo *= 2;
 630                         } else {
 631                                 timeo = msecs_to_jiffies(10);
 632                         }
 633                         break;
 634
 635                 case AMP_LINK:
 636                         timeo = conn->disc_timeout;
 637                         break;
 638
 639                 default:
 640                         timeo = msecs_to_jiffies(10);
 641                         break;
 642                 }
 643
 644                 cancel_delayed_work(&conn->disc_work);
 645                 queue_delayed_work(conn->hdev->workqueue,
 646                                    &conn->disc_work, timeo);
 647         }
 648 }
 649
 650 /* ----- HCI Devices ----- */
 651 static inline void hci_dev_put(struct hci_dev *d)
 652 {
 653         BT_DBG("%s orig refcnt %d", d->name,
 654                atomic_read(&d->dev.kobj.kref.refcount));
 655
 656         put_device(&d->dev);
 657 }
 658
 659 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 660 {
 661         BT_DBG("%s orig refcnt %d", d->name,
 662                atomic_read(&d->dev.kobj.kref.refcount));
 663
 664         get_device(&d->dev);
 665         return d;
 666 }
 667
 668 #define hci_dev_lock(d)         mutex_lock(&d->lock)
 669 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
 670
 671 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
 672 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
 673
 674 static inline void *hci_get_drvdata(struct hci_dev *hdev)
 675 {
 676         return dev_get_drvdata(&hdev->dev);
 677 }
 678
 679 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
 680 {
 681         dev_set_drvdata(&hdev->dev, data);
 682 }
 683
 684 /* hci_dev_list shall be locked */
 685 static inline uint8_t __hci_num_ctrl(void)
 686 {
 687         uint8_t count = 0;
 688         struct list_head *p;
 689
 690         list_for_each(p, &hci_dev_list) {
 691                 count++;
 692         }
 693
 694         return count;
 695 }
 696
 697 struct hci_dev *hci_dev_get(int index);
 698 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
 699
 700 struct hci_dev *hci_alloc_dev(void);
 701 void hci_free_dev(struct hci_dev *hdev);
 702 int hci_register_dev(struct hci_dev *hdev);
 703 void hci_unregister_dev(struct hci_dev *hdev);
 704 int hci_suspend_dev(struct hci_dev *hdev);
 705 int hci_resume_dev(struct hci_dev *hdev);
 706 int hci_dev_open(__u16 dev);
 707 int hci_dev_close(__u16 dev);
 708 int hci_dev_reset(__u16 dev);
 709 int hci_dev_reset_stat(__u16 dev);
 710 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 711 int hci_get_dev_list(void __user *arg);
 712 int hci_get_dev_info(void __user *arg);
 713 int hci_get_conn_list(void __user *arg);
 714 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 715 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 716 int hci_inquiry(void __user *arg);
 717
 718 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
 719                                          bdaddr_t *bdaddr);
 720 int hci_blacklist_clear(struct hci_dev *hdev);
 721 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 722 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 723
 724 int hci_uuids_clear(struct hci_dev *hdev);
 725
 726 int hci_link_keys_clear(struct hci_dev *hdev);
 727 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 728 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 729                      bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 730 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
 731 int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
 732                 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
 733                 __le16 ediv, u8 rand[8]);
 734 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
 735                                      u8 addr_type);
 736 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
 737 int hci_smp_ltks_clear(struct hci_dev *hdev);
 738 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 739
 740 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 741 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 742                                                         bdaddr_t *bdaddr);
 743 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 744                                                                 u8 *randomizer);
 745 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 746
 747 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 748
 749 int hci_recv_frame(struct sk_buff *skb);
 750 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 751 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 752
 753 void hci_init_sysfs(struct hci_dev *hdev);
 754 int hci_add_sysfs(struct hci_dev *hdev);
 755 void hci_del_sysfs(struct hci_dev *hdev);
 756 void hci_conn_init_sysfs(struct hci_conn *conn);
 757 void hci_conn_add_sysfs(struct hci_conn *conn);
 758 void hci_conn_del_sysfs(struct hci_conn *conn);
 759
 760 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
 761
 762 /* ----- LMP capabilities ----- */
 763 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 764 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 765 #define lmp_hold_capable(dev)      ((dev)->features[0] & LMP_HOLD)
 766 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 767 #define lmp_park_capable(dev)      ((dev)->features[1] & LMP_PARK)
 768 #define lmp_inq_rssi_capable(dev)  ((dev)->features[3] & LMP_RSSI_INQ)
 769 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 770 #define lmp_bredr_capable(dev)     (!((dev)->features[4] & LMP_NO_BREDR))
 771 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 772 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 773 #define lmp_pause_enc_capable(dev) ((dev)->features[5] & LMP_PAUSE_ENC)
 774 #define lmp_ext_inq_capable(dev)   ((dev)->features[6] & LMP_EXT_INQ)
 775 #define lmp_le_br_capable(dev)     !!((dev)->features[6] & LMP_SIMUL_LE_BR)
 776 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 777 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 778 #define lmp_lsto_capable(dev)      ((dev)->features[7] & LMP_LSTO)
 779 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[7] & LMP_INQ_TX_PWR)
 780 #define lmp_ext_feat_capable(dev)  ((dev)->features[7] & LMP_EXTFEATURES)
 781
 782 /* ----- Extended LMP capabilities ----- */
 783 #define lmp_host_ssp_capable(dev)  ((dev)->host_features[0] & LMP_HOST_SSP)
 784 #define lmp_host_le_capable(dev)   !!((dev)->host_features[0] & LMP_HOST_LE)
 785 #define lmp_host_le_br_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE_BREDR)
 786
 787 /* returns true if at least one AMP active */
 788 static inline bool hci_amp_capable(void)
 789 {
 790         struct hci_dev *hdev;
 791         bool ret = false;
 792
 793         read_lock(&hci_dev_list_lock);
 794         list_for_each_entry(hdev, &hci_dev_list, list)
 795                 if (hdev->amp_type == HCI_AMP &&
 796                     test_bit(HCI_UP, &hdev->flags))
 797                         ret = true;
 798         read_unlock(&hci_dev_list_lock);
 799
 800         return ret;
 801 }
 802
 803 /* ----- HCI protocols ----- */
 804 #define HCI_PROTO_DEFER             0x01
 805
 806 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 807                                         __u8 type, __u8 *flags)
 808 {
 809         switch (type) {
 810         case ACL_LINK:
 811                 return l2cap_connect_ind(hdev, bdaddr);
 812
 813         case SCO_LINK:
 814         case ESCO_LINK:
 815                 return sco_connect_ind(hdev, bdaddr, flags);
 816
 817         default:
 818                 BT_ERR("unknown link type %d", type);
 819                 return -EINVAL;
 820         }
 821 }
 822
 823 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 824 {
 825         switch (conn->type) {
 826         case ACL_LINK:
 827         case LE_LINK:
 828                 l2cap_connect_cfm(conn, status);
 829                 break;
 830
 831         case SCO_LINK:
 832         case ESCO_LINK:
 833                 sco_connect_cfm(conn, status);
 834                 break;
 835
 836         default:
 837                 BT_ERR("unknown link type %d", conn->type);
 838                 break;
 839         }
 840
 841         if (conn->connect_cfm_cb)
 842                 conn->connect_cfm_cb(conn, status);
 843 }
 844
 845 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 846 {
 847         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 848                 return HCI_ERROR_REMOTE_USER_TERM;
 849
 850         return l2cap_disconn_ind(conn);
 851 }
 852
 853 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 854 {
 855         switch (conn->type) {
 856         case ACL_LINK:
 857         case LE_LINK:
 858                 l2cap_disconn_cfm(conn, reason);
 859                 break;
 860
 861         case SCO_LINK:
 862         case ESCO_LINK:
 863                 sco_disconn_cfm(conn, reason);
 864                 break;
 865
 866         /* L2CAP would be handled for BREDR chan */
 867         case AMP_LINK:
 868                 break;
 869
 870         default:
 871                 BT_ERR("unknown link type %d", conn->type);
 872                 break;
 873         }
 874
 875         if (conn->disconn_cfm_cb)
 876                 conn->disconn_cfm_cb(conn, reason);
 877 }
 878
 879 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 880 {
 881         __u8 encrypt;
 882
 883         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 884                 return;
 885
 886         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 887                 return;
 888
 889         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 890         l2cap_security_cfm(conn, status, encrypt);
 891
 892         if (conn->security_cfm_cb)
 893                 conn->security_cfm_cb(conn, status);
 894 }
 895
 896 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
 897                                                                 __u8 encrypt)
 898 {
 899         if (conn->type != ACL_LINK && conn->type != LE_LINK)
 900                 return;
 901
 902         l2cap_security_cfm(conn, status, encrypt);
 903
 904         if (conn->security_cfm_cb)
 905                 conn->security_cfm_cb(conn, status);
 906 }
 907
 908 /* ----- HCI callbacks ----- */
 909 struct hci_cb {
 910         struct list_head list;
 911
 912         char *name;
 913
 914         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
 915                                                                 __u8 encrypt);
 916         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 917         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 918 };
 919
 920 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 921 {
 922         struct hci_cb *cb;
 923         __u8 encrypt;
 924
 925         hci_proto_auth_cfm(conn, status);
 926
 927         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
 928                 return;
 929
 930         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 931
 932         read_lock(&hci_cb_list_lock);
 933         list_for_each_entry(cb, &hci_cb_list, list) {
 934                 if (cb->security_cfm)
 935                         cb->security_cfm(conn, status, encrypt);
 936         }
 937         read_unlock(&hci_cb_list_lock);
 938 }
 939
 940 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 941                                                                 __u8 encrypt)
 942 {
 943         struct hci_cb *cb;
 944
 945         if (conn->sec_level == BT_SECURITY_SDP)
 946                 conn->sec_level = BT_SECURITY_LOW;
 947
 948         if (conn->pending_sec_level > conn->sec_level)
 949                 conn->sec_level = conn->pending_sec_level;
 950
 951         hci_proto_encrypt_cfm(conn, status, encrypt);
 952
 953         read_lock(&hci_cb_list_lock);
 954         list_for_each_entry(cb, &hci_cb_list, list) {
 955                 if (cb->security_cfm)
 956                         cb->security_cfm(conn, status, encrypt);
 957         }
 958         read_unlock(&hci_cb_list_lock);
 959 }
 960
 961 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 962 {
 963         struct hci_cb *cb;
 964
 965         read_lock(&hci_cb_list_lock);
 966         list_for_each_entry(cb, &hci_cb_list, list) {
 967                 if (cb->key_change_cfm)
 968                         cb->key_change_cfm(conn, status);
 969         }
 970         read_unlock(&hci_cb_list_lock);
 971 }
 972
 973 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 974                                                                 __u8 role)
 975 {
 976         struct hci_cb *cb;
 977
 978         read_lock(&hci_cb_list_lock);
 979         list_for_each_entry(cb, &hci_cb_list, list) {
 980                 if (cb->role_switch_cfm)
 981                         cb->role_switch_cfm(conn, status, role);
 982         }
 983         read_unlock(&hci_cb_list_lock);
 984 }
 985
 986 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
 987 {
 988         size_t parsed = 0;
 989
 990         if (data_len < 2)
 991                 return false;
 992
 993         while (parsed < data_len - 1) {
 994                 u8 field_len = data[0];
 995
 996                 if (field_len == 0)
 997                         break;
 998
 999                 parsed += field_len + 1;
1000
1001                 if (parsed > data_len)
1002                         break;
1003
1004                 if (data[1] == type)
1005                         return true;
1006
1007                 data += field_len + 1;
1008         }
1009
1010         return false;
1011 }
1012
1013 static inline size_t eir_get_length(u8 *eir, size_t eir_len)
1014 {
1015         size_t parsed = 0;
1016
1017         while (parsed < eir_len) {
1018                 u8 field_len = eir[0];
1019
1020                 if (field_len == 0)
1021                         return parsed;
1022
1023                 parsed += field_len + 1;
1024                 eir += field_len + 1;
1025         }
1026
1027         return eir_len;
1028 }
1029
1030 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
1031                                   u8 data_len)
1032 {
1033         eir[eir_len++] = sizeof(type) + data_len;
1034         eir[eir_len++] = type;
1035         memcpy(&eir[eir_len], data, data_len);
1036         eir_len += data_len;
1037
1038         return eir_len;
1039 }
1040
1041 int hci_register_cb(struct hci_cb *hcb);
1042 int hci_unregister_cb(struct hci_cb *hcb);
1043
1044 struct hci_request {
1045         struct hci_dev          *hdev;
1046         struct sk_buff_head     cmd_q;
1047
1048         /* If something goes wrong when building the HCI request, the error
1049          * value is stored in this field.
1050          */
1051         int                     err;
1052 };
1053
1054 void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1055 int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
1056 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, void *param);
1057 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
1058 void hci_req_cmd_status(struct hci_dev *hdev, u16 opcode, u8 status);
1059
1060 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
1061 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1062 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1063
1064 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1065
1066 /* ----- HCI Sockets ----- */
1067 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1068 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
1069 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1070
1071 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1072
1073 /* Management interface */
1074 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1075 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1076                                          BIT(BDADDR_LE_RANDOM))
1077 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1078                                          BIT(BDADDR_LE_PUBLIC) | \
1079                                          BIT(BDADDR_LE_RANDOM))
1080
1081 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
1082 int mgmt_index_added(struct hci_dev *hdev);
1083 int mgmt_index_removed(struct hci_dev *hdev);
1084 int mgmt_powered(struct hci_dev *hdev, u8 powered);
1085 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1086 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1087 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1088 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1089                       bool persistent);
1090 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1091                           u8 addr_type, u32 flags, u8 *name, u8 name_len,
1092                           u8 *dev_class);
1093 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1094                              u8 link_type, u8 addr_type, u8 reason);
1095 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1096                            u8 link_type, u8 addr_type, u8 status);
1097 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1098                         u8 addr_type, u8 status);
1099 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1100 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1101                                  u8 status);
1102 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1103                                      u8 status);
1104 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1105                               u8 link_type, u8 addr_type, __le32 value,
1106                               u8 confirm_hint);
1107 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1108                                      u8 link_type, u8 addr_type, u8 status);
1109 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1110                                          u8 link_type, u8 addr_type, u8 status);
1111 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1112                               u8 link_type, u8 addr_type);
1113 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1114                                      u8 link_type, u8 addr_type, u8 status);
1115 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1116                                          u8 link_type, u8 addr_type, u8 status);
1117 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1118                              u8 link_type, u8 addr_type, u32 passkey,
1119                              u8 entered);
1120 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1121                      u8 addr_type, u8 status);
1122 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1123 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1124 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1125                                    u8 status);
1126 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1127 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
1128                                             u8 *randomizer, u8 status);
1129 int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1130 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1131                       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1132                       u8 ssp, u8 *eir, u16 eir_len);
1133 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1134                      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1135 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status);
1136 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status);
1137 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1138 int mgmt_interleaved_discovery(struct hci_dev *hdev);
1139 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1140 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1141 bool mgmt_valid_hdev(struct hci_dev *hdev);
1142 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1143
1144 /* HCI info for socket */
1145 #define hci_pi(sk) ((struct hci_pinfo *) sk)
1146
1147 struct hci_pinfo {
1148         struct bt_sock    bt;
1149         struct hci_dev    *hdev;
1150         struct hci_filter filter;
1151         __u32             cmsg_mask;
1152         unsigned short   channel;
1153 };
1154
1155 /* HCI security filter */
1156 #define HCI_SFLT_MAX_OGF  5
1157
1158 struct hci_sec_filter {
1159         __u32 type_mask;
1160         __u32 event_mask[2];
1161         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1162 };
1163
1164 /* ----- HCI requests ----- */
1165 #define HCI_REQ_DONE      0
1166 #define HCI_REQ_PEND      1
1167 #define HCI_REQ_CANCELED  2
1168
1169 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
1170 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
1171
1172 void hci_update_ad(struct hci_request *req);
1173
1174 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1175                                         u16 latency, u16 to_multiplier);
1176 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1177                                                         __u8 ltk[16]);
1178 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
1179 int hci_cancel_inquiry(struct hci_dev *hdev);
1180 int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window,
1181                 int timeout);
1182 int hci_cancel_le_scan(struct hci_dev *hdev);
1183
1184 u8 bdaddr_to_le(u8 bdaddr_type);
1185
1186 #endif /* __HCI_CORE_H */