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    Copyright 2023 NXP
   5
   6    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License version 2 as
  10    published by the Free Software Foundation;
  11
  12    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  13    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  14    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  15    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  16    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  17    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  18    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  19    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20
  21    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  22    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  23    SOFTWARE IS DISCLAIMED.
  24 */
  25
  26 #ifndef __HCI_CORE_H
  27 #define __HCI_CORE_H
  28
  29 #include <linux/idr.h>
  30 #include <linux/leds.h>
  31 #include <linux/rculist.h>
  32
  33 #include <net/bluetooth/hci.h>
  34 #include <net/bluetooth/hci_sync.h>
  35 #include <net/bluetooth/hci_sock.h>
  36 #include <net/bluetooth/coredump.h>
  37
  38 /* HCI priority */
  39 #define HCI_PRIO_MAX    7
  40
  41 /* HCI maximum id value */
  42 #define HCI_MAX_ID 10000
  43
  44 /* HCI Core structures */
  45 struct inquiry_data {
  46         bdaddr_t        bdaddr;
  47         __u8            pscan_rep_mode;
  48         __u8            pscan_period_mode;
  49         __u8            pscan_mode;
  50         __u8            dev_class[3];
  51         __le16          clock_offset;
  52         __s8            rssi;
  53         __u8            ssp_mode;
  54 };
  55
  56 struct inquiry_entry {
  57         struct list_head        all;            /* inq_cache.all */
  58         struct list_head        list;           /* unknown or resolve */
  59         enum {
  60                 NAME_NOT_KNOWN,
  61                 NAME_NEEDED,
  62                 NAME_PENDING,
  63                 NAME_KNOWN,
  64         } name_state;
  65         __u32                   timestamp;
  66         struct inquiry_data     data;
  67 };
  68
  69 struct discovery_state {
  70         int                     type;
  71         enum {
  72                 DISCOVERY_STOPPED,
  73                 DISCOVERY_STARTING,
  74                 DISCOVERY_FINDING,
  75                 DISCOVERY_RESOLVING,
  76                 DISCOVERY_STOPPING,
  77         } state;
  78         struct list_head        all;    /* All devices found during inquiry */
  79         struct list_head        unknown;        /* Name state not known */
  80         struct list_head        resolve;        /* Name needs to be resolved */
  81         __u32                   timestamp;
  82         bdaddr_t                last_adv_addr;
  83         u8                      last_adv_addr_type;
  84         s8                      last_adv_rssi;
  85         u32                     last_adv_flags;
  86         u8                      last_adv_data[HCI_MAX_EXT_AD_LENGTH];
  87         u8                      last_adv_data_len;
  88         bool                    report_invalid_rssi;
  89         bool                    result_filtering;
  90         bool                    limited;
  91         s8                      rssi;
  92         u16                     uuid_count;
  93         u8                      (*uuids)[16];
  94         unsigned long           scan_start;
  95         unsigned long           scan_duration;
  96         unsigned long           name_resolve_timeout;
  97 };
  98
  99 #define SUSPEND_NOTIFIER_TIMEOUT        msecs_to_jiffies(2000) /* 2 seconds */
 100
 101 enum suspend_tasks {
 102         SUSPEND_PAUSE_DISCOVERY,
 103         SUSPEND_UNPAUSE_DISCOVERY,
 104
 105         SUSPEND_PAUSE_ADVERTISING,
 106         SUSPEND_UNPAUSE_ADVERTISING,
 107
 108         SUSPEND_SCAN_DISABLE,
 109         SUSPEND_SCAN_ENABLE,
 110         SUSPEND_DISCONNECTING,
 111
 112         SUSPEND_POWERING_DOWN,
 113
 114         SUSPEND_PREPARE_NOTIFIER,
 115
 116         SUSPEND_SET_ADV_FILTER,
 117         __SUSPEND_NUM_TASKS
 118 };
 119
 120 enum suspended_state {
 121         BT_RUNNING = 0,
 122         BT_SUSPEND_DISCONNECT,
 123         BT_SUSPEND_CONFIGURE_WAKE,
 124 };
 125
 126 struct hci_conn_hash {
 127         struct list_head list;
 128         unsigned int     acl_num;
 129         unsigned int     amp_num;
 130         unsigned int     sco_num;
 131         unsigned int     iso_num;
 132         unsigned int     le_num;
 133         unsigned int     le_num_peripheral;
 134 };
 135
 136 struct bdaddr_list {
 137         struct list_head list;
 138         bdaddr_t bdaddr;
 139         u8 bdaddr_type;
 140 };
 141
 142 struct codec_list {
 143         struct list_head list;
 144         u8      id;
 145         __u16   cid;
 146         __u16   vid;
 147         u8      transport;
 148         u8      num_caps;
 149         u32     len;
 150         struct hci_codec_caps caps[];
 151 };
 152
 153 struct bdaddr_list_with_irk {
 154         struct list_head list;
 155         bdaddr_t bdaddr;
 156         u8 bdaddr_type;
 157         u8 peer_irk[16];
 158         u8 local_irk[16];
 159 };
 160
 161 /* Bitmask of connection flags */
 162 enum hci_conn_flags {
 163         HCI_CONN_FLAG_REMOTE_WAKEUP = 1,
 164         HCI_CONN_FLAG_DEVICE_PRIVACY = 2,
 165 };
 166 typedef u8 hci_conn_flags_t;
 167
 168 struct bdaddr_list_with_flags {
 169         struct list_head list;
 170         bdaddr_t bdaddr;
 171         u8 bdaddr_type;
 172         hci_conn_flags_t flags;
 173 };
 174
 175 struct bt_uuid {
 176         struct list_head list;
 177         u8 uuid[16];
 178         u8 size;
 179         u8 svc_hint;
 180 };
 181
 182 struct blocked_key {
 183         struct list_head list;
 184         struct rcu_head rcu;
 185         u8 type;
 186         u8 val[16];
 187 };
 188
 189 struct smp_csrk {
 190         bdaddr_t bdaddr;
 191         u8 bdaddr_type;
 192         u8 link_type;
 193         u8 type;
 194         u8 val[16];
 195 };
 196
 197 struct smp_ltk {
 198         struct list_head list;
 199         struct rcu_head rcu;
 200         bdaddr_t bdaddr;
 201         u8 bdaddr_type;
 202         u8 link_type;
 203         u8 authenticated;
 204         u8 type;
 205         u8 enc_size;
 206         __le16 ediv;
 207         __le64 rand;
 208         u8 val[16];
 209 };
 210
 211 struct smp_irk {
 212         struct list_head list;
 213         struct rcu_head rcu;
 214         bdaddr_t rpa;
 215         bdaddr_t bdaddr;
 216         u8 addr_type;
 217         u8 link_type;
 218         u8 val[16];
 219 };
 220
 221 struct link_key {
 222         struct list_head list;
 223         struct rcu_head rcu;
 224         bdaddr_t bdaddr;
 225         u8 bdaddr_type;
 226         u8 link_type;
 227         u8 type;
 228         u8 val[HCI_LINK_KEY_SIZE];
 229         u8 pin_len;
 230 };
 231
 232 struct oob_data {
 233         struct list_head list;
 234         bdaddr_t bdaddr;
 235         u8 bdaddr_type;
 236         u8 present;
 237         u8 hash192[16];
 238         u8 rand192[16];
 239         u8 hash256[16];
 240         u8 rand256[16];
 241 };
 242
 243 struct adv_info {
 244         struct list_head list;
 245         bool    enabled;
 246         bool    pending;
 247         bool    periodic;
 248         __u8    mesh;
 249         __u8    instance;
 250         __u32   flags;
 251         __u16   timeout;
 252         __u16   remaining_time;
 253         __u16   duration;
 254         __u16   adv_data_len;
 255         __u8    adv_data[HCI_MAX_EXT_AD_LENGTH];
 256         bool    adv_data_changed;
 257         __u16   scan_rsp_len;
 258         __u8    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 259         bool    scan_rsp_changed;
 260         __u16   per_adv_data_len;
 261         __u8    per_adv_data[HCI_MAX_PER_AD_LENGTH];
 262         __s8    tx_power;
 263         __u32   min_interval;
 264         __u32   max_interval;
 265         bdaddr_t        random_addr;
 266         bool            rpa_expired;
 267         struct delayed_work     rpa_expired_cb;
 268 };
 269
 270 #define HCI_MAX_ADV_INSTANCES           5
 271 #define HCI_DEFAULT_ADV_DURATION        2
 272
 273 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 274
 275 #define DATA_CMP(_d1, _l1, _d2, _l2) \
 276         (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2)
 277
 278 #define ADV_DATA_CMP(_adv, _data, _len) \
 279         DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len)
 280
 281 #define SCAN_RSP_CMP(_adv, _data, _len) \
 282         DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len)
 283
 284 struct monitored_device {
 285         struct list_head list;
 286
 287         bdaddr_t bdaddr;
 288         __u8     addr_type;
 289         __u16    handle;
 290         bool     notified;
 291 };
 292
 293 struct adv_pattern {
 294         struct list_head list;
 295         __u8 ad_type;
 296         __u8 offset;
 297         __u8 length;
 298         __u8 value[HCI_MAX_EXT_AD_LENGTH];
 299 };
 300
 301 struct adv_rssi_thresholds {
 302         __s8 low_threshold;
 303         __s8 high_threshold;
 304         __u16 low_threshold_timeout;
 305         __u16 high_threshold_timeout;
 306         __u8 sampling_period;
 307 };
 308
 309 struct adv_monitor {
 310         struct list_head patterns;
 311         struct adv_rssi_thresholds rssi;
 312         __u16           handle;
 313
 314         enum {
 315                 ADV_MONITOR_STATE_NOT_REGISTERED,
 316                 ADV_MONITOR_STATE_REGISTERED,
 317                 ADV_MONITOR_STATE_OFFLOADED
 318         } state;
 319 };
 320
 321 #define HCI_MIN_ADV_MONITOR_HANDLE              1
 322 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES         32
 323 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS        16
 324 #define HCI_ADV_MONITOR_EXT_NONE                1
 325 #define HCI_ADV_MONITOR_EXT_MSFT                2
 326
 327 #define HCI_MAX_SHORT_NAME_LENGTH       10
 328
 329 #define HCI_CONN_HANDLE_MAX             0x0eff
 330 #define HCI_CONN_HANDLE_UNSET(_handle)  (_handle > HCI_CONN_HANDLE_MAX)
 331
 332 /* Min encryption key size to match with SMP */
 333 #define HCI_MIN_ENC_KEY_SIZE            7
 334
 335 /* Default LE RPA expiry time, 15 minutes */
 336 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 337
 338 /* Default min/max age of connection information (1s/3s) */
 339 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 340 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 341 /* Default authenticated payload timeout 30s */
 342 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 343
 344 struct amp_assoc {
 345         __u16   len;
 346         __u16   offset;
 347         __u16   rem_len;
 348         __u16   len_so_far;
 349         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 350 };
 351
 352 #define HCI_MAX_PAGES   3
 353
 354 #ifdef TIZEN_BT
 355 #define HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH    100
 356 #endif
 357
 358 struct hci_dev {
 359         struct list_head list;
 360         struct mutex    lock;
 361
 362         struct ida      unset_handle_ida;
 363
 364         const char      *name;
 365         unsigned long   flags;
 366         __u16           id;
 367         __u8            bus;
 368         __u8            dev_type;
 369         bdaddr_t        bdaddr;
 370         bdaddr_t        setup_addr;
 371         bdaddr_t        public_addr;
 372         bdaddr_t        random_addr;
 373         bdaddr_t        static_addr;
 374         __u8            adv_addr_type;
 375         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 376         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 377         __u8            eir[HCI_MAX_EIR_LENGTH];
 378         __u16           appearance;
 379         __u8            dev_class[3];
 380         __u8            major_class;
 381         __u8            minor_class;
 382         __u8            max_page;
 383         __u8            features[HCI_MAX_PAGES][8];
 384         __u8            le_features[8];
 385         __u8            le_accept_list_size;
 386         __u8            le_resolv_list_size;
 387         __u8            le_num_of_adv_sets;
 388         __u8            le_states[8];
 389         __u8            mesh_ad_types[16];
 390         __u8            mesh_send_ref;
 391         __u8            commands[64];
 392         __u8            hci_ver;
 393         __u16           hci_rev;
 394         __u8            lmp_ver;
 395         __u16           manufacturer;
 396         __u16           lmp_subver;
 397         __u16           voice_setting;
 398         __u8            num_iac;
 399         __u16           stored_max_keys;
 400         __u16           stored_num_keys;
 401         __u8            io_capability;
 402         __s8            inq_tx_power;
 403         __u8            err_data_reporting;
 404         __u16           page_scan_interval;
 405         __u16           page_scan_window;
 406         __u8            page_scan_type;
 407         __u8            le_adv_channel_map;
 408         __u16           le_adv_min_interval;
 409         __u16           le_adv_max_interval;
 410         __u8            le_scan_type;
 411         __u16           le_scan_interval;
 412         __u16           le_scan_window;
 413         __u16           le_scan_int_suspend;
 414         __u16           le_scan_window_suspend;
 415         __u16           le_scan_int_discovery;
 416         __u16           le_scan_window_discovery;
 417         __u16           le_scan_int_adv_monitor;
 418         __u16           le_scan_window_adv_monitor;
 419         __u16           le_scan_int_connect;
 420         __u16           le_scan_window_connect;
 421         __u16           le_conn_min_interval;
 422         __u16           le_conn_max_interval;
 423         __u16           le_conn_latency;
 424         __u16           le_supv_timeout;
 425         __u16           le_def_tx_len;
 426         __u16           le_def_tx_time;
 427         __u16           le_max_tx_len;
 428         __u16           le_max_tx_time;
 429         __u16           le_max_rx_len;
 430         __u16           le_max_rx_time;
 431         __u8            le_max_key_size;
 432         __u8            le_min_key_size;
 433         __u16           discov_interleaved_timeout;
 434         __u16           conn_info_min_age;
 435         __u16           conn_info_max_age;
 436         __u16           auth_payload_timeout;
 437         __u8            min_enc_key_size;
 438         __u8            max_enc_key_size;
 439         __u8            pairing_opts;
 440         __u8            ssp_debug_mode;
 441         __u8            hw_error_code;
 442         __u32           clock;
 443         __u16           advmon_allowlist_duration;
 444         __u16           advmon_no_filter_duration;
 445         __u8            enable_advmon_interleave_scan;
 446
 447         __u16           devid_source;
 448         __u16           devid_vendor;
 449         __u16           devid_product;
 450         __u16           devid_version;
 451
 452         __u8            def_page_scan_type;
 453         __u16           def_page_scan_int;
 454         __u16           def_page_scan_window;
 455         __u8            def_inq_scan_type;
 456         __u16           def_inq_scan_int;
 457         __u16           def_inq_scan_window;
 458         __u16           def_br_lsto;
 459         __u16           def_page_timeout;
 460         __u16           def_multi_adv_rotation_duration;
 461         __u16           def_le_autoconnect_timeout;
 462         __s8            min_le_tx_power;
 463         __s8            max_le_tx_power;
 464
 465         __u16           pkt_type;
 466         __u16           esco_type;
 467         __u16           link_policy;
 468         __u16           link_mode;
 469
 470         __u32           idle_timeout;
 471         __u16           sniff_min_interval;
 472         __u16           sniff_max_interval;
 473
 474         __u8            amp_status;
 475         __u32           amp_total_bw;
 476         __u32           amp_max_bw;
 477         __u32           amp_min_latency;
 478         __u32           amp_max_pdu;
 479         __u8            amp_type;
 480         __u16           amp_pal_cap;
 481         __u16           amp_assoc_size;
 482         __u32           amp_max_flush_to;
 483         __u32           amp_be_flush_to;
 484
 485         struct amp_assoc        loc_assoc;
 486
 487         __u8            flow_ctl_mode;
 488
 489         unsigned int    auto_accept_delay;
 490
 491         unsigned long   quirks;
 492
 493         atomic_t        cmd_cnt;
 494         unsigned int    acl_cnt;
 495         unsigned int    sco_cnt;
 496         unsigned int    le_cnt;
 497         unsigned int    iso_cnt;
 498
 499         unsigned int    acl_mtu;
 500         unsigned int    sco_mtu;
 501         unsigned int    le_mtu;
 502         unsigned int    iso_mtu;
 503         unsigned int    acl_pkts;
 504         unsigned int    sco_pkts;
 505         unsigned int    le_pkts;
 506         unsigned int    iso_pkts;
 507
 508         __u16           block_len;
 509         __u16           block_mtu;
 510         __u16           num_blocks;
 511         __u16           block_cnt;
 512
 513         unsigned long   acl_last_tx;
 514         unsigned long   sco_last_tx;
 515         unsigned long   le_last_tx;
 516
 517         __u8            le_tx_def_phys;
 518         __u8            le_rx_def_phys;
 519
 520         struct workqueue_struct *workqueue;
 521         struct workqueue_struct *req_workqueue;
 522
 523         struct work_struct      power_on;
 524         struct delayed_work     power_off;
 525         struct work_struct      error_reset;
 526         struct work_struct      cmd_sync_work;
 527         struct list_head        cmd_sync_work_list;
 528         struct mutex            cmd_sync_work_lock;
 529         struct mutex            unregister_lock;
 530         struct work_struct      cmd_sync_cancel_work;
 531         struct work_struct      reenable_adv_work;
 532
 533         __u16                   discov_timeout;
 534         struct delayed_work     discov_off;
 535
 536         struct delayed_work     service_cache;
 537
 538         struct delayed_work     cmd_timer;
 539         struct delayed_work     ncmd_timer;
 540
 541         struct work_struct      rx_work;
 542         struct work_struct      cmd_work;
 543         struct work_struct      tx_work;
 544
 545         struct delayed_work     le_scan_disable;
 546         struct delayed_work     le_scan_restart;
 547
 548         struct sk_buff_head     rx_q;
 549         struct sk_buff_head     raw_q;
 550         struct sk_buff_head     cmd_q;
 551
 552         struct sk_buff          *sent_cmd;
 553         struct sk_buff          *recv_event;
 554
 555         struct mutex            req_lock;
 556         wait_queue_head_t       req_wait_q;
 557         __u32                   req_status;
 558         __u32                   req_result;
 559         struct sk_buff          *req_skb;
 560
 561         void                    *smp_data;
 562         void                    *smp_bredr_data;
 563
 564         struct discovery_state  discovery;
 565
 566         int                     discovery_old_state;
 567         bool                    discovery_paused;
 568         int                     advertising_old_state;
 569         bool                    advertising_paused;
 570
 571         struct notifier_block   suspend_notifier;
 572         enum suspended_state    suspend_state_next;
 573         enum suspended_state    suspend_state;
 574         bool                    scanning_paused;
 575         bool                    suspended;
 576         u8                      wake_reason;
 577         bdaddr_t                wake_addr;
 578         u8                      wake_addr_type;
 579 #ifdef TIZEN_BT
 580         struct discovery_state  le_discovery;
 581 #endif
 582
 583         struct hci_conn_hash    conn_hash;
 584
 585         struct list_head        mesh_pending;
 586         struct list_head        mgmt_pending;
 587         struct list_head        reject_list;
 588         struct list_head        accept_list;
 589         struct list_head        uuids;
 590         struct list_head        link_keys;
 591         struct list_head        long_term_keys;
 592         struct list_head        identity_resolving_keys;
 593         struct list_head        remote_oob_data;
 594         struct list_head        le_accept_list;
 595         struct list_head        le_resolv_list;
 596         struct list_head        le_conn_params;
 597         struct list_head        pend_le_conns;
 598         struct list_head        pend_le_reports;
 599         struct list_head        blocked_keys;
 600         struct list_head        local_codecs;
 601
 602         struct hci_dev_stats    stat;
 603
 604         atomic_t                promisc;
 605
 606         const char              *hw_info;
 607         const char              *fw_info;
 608         struct dentry           *debugfs;
 609
 610         struct hci_devcoredump  dump;
 611
 612         struct device           dev;
 613
 614         struct rfkill           *rfkill;
 615
 616         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 617         hci_conn_flags_t        conn_flags;
 618
 619         __s8                    adv_tx_power;
 620         __u8                    adv_data[HCI_MAX_EXT_AD_LENGTH];
 621         __u8                    adv_data_len;
 622         __u8                    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 623         __u8                    scan_rsp_data_len;
 624         __u8                    per_adv_data[HCI_MAX_PER_AD_LENGTH];
 625         __u8                    per_adv_data_len;
 626
 627         struct list_head        adv_instances;
 628         unsigned int            adv_instance_cnt;
 629         __u8                    cur_adv_instance;
 630         __u16                   adv_instance_timeout;
 631         struct delayed_work     adv_instance_expire;
 632
 633         struct idr              adv_monitors_idr;
 634         unsigned int            adv_monitors_cnt;
 635
 636         __u8                    irk[16];
 637         __u32                   rpa_timeout;
 638         struct delayed_work     rpa_expired;
 639         bdaddr_t                rpa;
 640
 641         struct delayed_work     mesh_send_done;
 642
 643         enum {
 644                 INTERLEAVE_SCAN_NONE,
 645                 INTERLEAVE_SCAN_NO_FILTER,
 646                 INTERLEAVE_SCAN_ALLOWLIST
 647         } interleave_scan_state;
 648
 649         struct delayed_work     interleave_scan;
 650
 651         struct list_head        monitored_devices;
 652         bool                    advmon_pend_notify;
 653
 654 #if IS_ENABLED(CONFIG_BT_LEDS)
 655         struct led_trigger      *power_led;
 656 #endif
 657
 658 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
 659         __u16                   msft_opcode;
 660         void                    *msft_data;
 661         bool                    msft_curve_validity;
 662 #endif
 663
 664 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
 665         bool                    aosp_capable;
 666         bool                    aosp_quality_report;
 667 #endif
 668
 669 #ifdef TIZEN_BT
 670         __u8                    adv_filter_policy;
 671         __u8                    adv_type;
 672         __u8                    manufacturer_len;
 673         __u8                    manufacturer_data[HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH];
 674 #endif
 675
 676         int (*open)(struct hci_dev *hdev);
 677         int (*close)(struct hci_dev *hdev);
 678         int (*flush)(struct hci_dev *hdev);
 679         int (*setup)(struct hci_dev *hdev);
 680         int (*shutdown)(struct hci_dev *hdev);
 681         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 682         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 683         void (*hw_error)(struct hci_dev *hdev, u8 code);
 684         int (*post_init)(struct hci_dev *hdev);
 685         int (*set_diag)(struct hci_dev *hdev, bool enable);
 686         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 687         void (*cmd_timeout)(struct hci_dev *hdev);
 688         void (*reset)(struct hci_dev *hdev);
 689         bool (*wakeup)(struct hci_dev *hdev);
 690         int (*set_quality_report)(struct hci_dev *hdev, bool enable);
 691         int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
 692         int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
 693                                      struct bt_codec *codec, __u8 *vnd_len,
 694                                      __u8 **vnd_data);
 695 };
 696
 697 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 698
 699 enum conn_reasons {
 700         CONN_REASON_PAIR_DEVICE,
 701         CONN_REASON_L2CAP_CHAN,
 702         CONN_REASON_SCO_CONNECT,
 703         CONN_REASON_ISO_CONNECT,
 704 };
 705
 706 struct hci_conn {
 707         struct list_head list;
 708
 709         atomic_t        refcnt;
 710
 711         bdaddr_t        dst;
 712         __u8            dst_type;
 713         bdaddr_t        src;
 714         __u8            src_type;
 715         bdaddr_t        init_addr;
 716         __u8            init_addr_type;
 717         bdaddr_t        resp_addr;
 718         __u8            resp_addr_type;
 719         __u8            adv_instance;
 720         __u16           handle;
 721         __u16           sync_handle;
 722         __u16           state;
 723         __u8            mode;
 724         __u8            type;
 725         __u8            role;
 726         bool            out;
 727         __u8            attempt;
 728         __u8            dev_class[3];
 729         __u8            features[HCI_MAX_PAGES][8];
 730         __u16           pkt_type;
 731         __u16           link_policy;
 732         __u8            key_type;
 733         __u8            auth_type;
 734         __u8            sec_level;
 735         __u8            pending_sec_level;
 736         __u8            pin_length;
 737         __u8            enc_key_size;
 738         __u8            io_capability;
 739         __u32           passkey_notify;
 740         __u8            passkey_entered;
 741         __u16           disc_timeout;
 742         __u16           conn_timeout;
 743         __u16           setting;
 744         __u16           auth_payload_timeout;
 745         __u16           le_conn_min_interval;
 746         __u16           le_conn_max_interval;
 747         __u16           le_conn_interval;
 748         __u16           le_conn_latency;
 749         __u16           le_supv_timeout;
 750         __u8            le_adv_data[HCI_MAX_EXT_AD_LENGTH];
 751         __u8            le_adv_data_len;
 752         __u8            le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
 753         __u8            le_per_adv_data_len;
 754         __u8            le_tx_phy;
 755         __u8            le_rx_phy;
 756         __s8            rssi;
 757         __s8            tx_power;
 758         __s8            max_tx_power;
 759         struct bt_iso_qos iso_qos;
 760         unsigned long   flags;
 761
 762         enum conn_reasons conn_reason;
 763         __u8            abort_reason;
 764
 765         __u32           clock;
 766         __u16           clock_accuracy;
 767
 768         unsigned long   conn_info_timestamp;
 769
 770         __u8            remote_cap;
 771         __u8            remote_auth;
 772         __u8            remote_id;
 773
 774         unsigned int    sent;
 775
 776         struct sk_buff_head data_q;
 777         struct list_head chan_list;
 778
 779         struct delayed_work disc_work;
 780         struct delayed_work auto_accept_work;
 781         struct delayed_work idle_work;
 782         struct delayed_work le_conn_timeout;
 783
 784         struct device   dev;
 785         struct dentry   *debugfs;
 786
 787         struct hci_dev  *hdev;
 788         void            *l2cap_data;
 789         void            *sco_data;
 790         void            *iso_data;
 791         struct amp_mgr  *amp_mgr;
 792
 793 #ifdef TIZEN_BT
 794         bool            rssi_monitored;
 795         __u8            sco_role;
 796         __u16           voice_setting;
 797 #endif
 798         struct list_head link_list;
 799         struct hci_conn *parent;
 800         struct hci_link *link;
 801
 802         struct bt_codec codec;
 803
 804         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 805         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 806         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 807
 808         void (*cleanup)(struct hci_conn *conn);
 809 };
 810
 811 struct hci_link {
 812         struct list_head list;
 813         struct hci_conn *conn;
 814 };
 815
 816 struct hci_chan {
 817         struct list_head list;
 818         __u16 handle;
 819         struct hci_conn *conn;
 820         struct sk_buff_head data_q;
 821         unsigned int    sent;
 822         __u8            state;
 823         bool            amp;
 824 };
 825
 826 struct hci_conn_params {
 827         struct list_head list;
 828         struct list_head action;
 829
 830         bdaddr_t addr;
 831         u8 addr_type;
 832
 833         u16 conn_min_interval;
 834         u16 conn_max_interval;
 835         u16 conn_latency;
 836         u16 supervision_timeout;
 837
 838         enum {
 839                 HCI_AUTO_CONN_DISABLED,
 840                 HCI_AUTO_CONN_REPORT,
 841                 HCI_AUTO_CONN_DIRECT,
 842                 HCI_AUTO_CONN_ALWAYS,
 843                 HCI_AUTO_CONN_LINK_LOSS,
 844                 HCI_AUTO_CONN_EXPLICIT,
 845         } auto_connect;
 846
 847         struct hci_conn *conn;
 848         bool explicit_connect;
 849         /* Accessed without hdev->lock: */
 850         hci_conn_flags_t flags;
 851         u8  privacy_mode;
 852 };
 853
 854 extern struct list_head hci_dev_list;
 855 extern struct list_head hci_cb_list;
 856 extern rwlock_t hci_dev_list_lock;
 857 extern struct mutex hci_cb_list_lock;
 858
 859 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 860 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 861 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 862 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 863 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 864 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 865 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 866
 867 #define hci_dev_clear_volatile_flags(hdev)                      \
 868         do {                                                    \
 869                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 870                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 871                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 872                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 873                 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);   \
 874         } while (0)
 875
 876 #define hci_dev_le_state_simultaneous(hdev) \
 877         (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
 878          (hdev->le_states[4] & 0x08) && /* Central */ \
 879          (hdev->le_states[4] & 0x40) && /* Peripheral */ \
 880          (hdev->le_states[3] & 0x10))   /* Simultaneous */
 881
 882 /* ----- HCI interface to upper protocols ----- */
 883 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 884 int l2cap_disconn_ind(struct hci_conn *hcon);
 885 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 886
 887 #if IS_ENABLED(CONFIG_BT_BREDR)
 888 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 889 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 890 #else
 891 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 892                                   __u8 *flags)
 893 {
 894         return 0;
 895 }
 896
 897 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 898 {
 899 }
 900 #endif
 901
 902 #if IS_ENABLED(CONFIG_BT_LE)
 903 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 904 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 905 #else
 906 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 907                                   __u8 *flags)
 908 {
 909         return 0;
 910 }
 911 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
 912                             u16 flags)
 913 {
 914 }
 915 #endif
 916
 917 /* ----- Inquiry cache ----- */
 918 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 919 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 920
 921 static inline void discovery_init(struct hci_dev *hdev)
 922 {
 923         hdev->discovery.state = DISCOVERY_STOPPED;
 924         INIT_LIST_HEAD(&hdev->discovery.all);
 925         INIT_LIST_HEAD(&hdev->discovery.unknown);
 926         INIT_LIST_HEAD(&hdev->discovery.resolve);
 927         hdev->discovery.report_invalid_rssi = true;
 928         hdev->discovery.rssi = HCI_RSSI_INVALID;
 929 }
 930
 931 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 932 {
 933         hdev->discovery.result_filtering = false;
 934         hdev->discovery.report_invalid_rssi = true;
 935         hdev->discovery.rssi = HCI_RSSI_INVALID;
 936         hdev->discovery.uuid_count = 0;
 937         kfree(hdev->discovery.uuids);
 938         hdev->discovery.uuids = NULL;
 939         hdev->discovery.scan_start = 0;
 940         hdev->discovery.scan_duration = 0;
 941 }
 942
 943 bool hci_discovery_active(struct hci_dev *hdev);
 944
 945 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 946
 947 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 948 {
 949         return list_empty(&hdev->discovery.all);
 950 }
 951
 952 static inline long inquiry_cache_age(struct hci_dev *hdev)
 953 {
 954         struct discovery_state *c = &hdev->discovery;
 955         return jiffies - c->timestamp;
 956 }
 957
 958 static inline long inquiry_entry_age(struct inquiry_entry *e)
 959 {
 960         return jiffies - e->timestamp;
 961 }
 962
 963 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 964                                                bdaddr_t *bdaddr);
 965 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 966                                                        bdaddr_t *bdaddr);
 967 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 968                                                        bdaddr_t *bdaddr,
 969                                                        int state);
 970 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 971                                       struct inquiry_entry *ie);
 972 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 973                              bool name_known);
 974 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 975
 976 /* ----- HCI Connections ----- */
 977 enum {
 978         HCI_CONN_AUTH_PEND,
 979         HCI_CONN_ENCRYPT_PEND,
 980         HCI_CONN_RSWITCH_PEND,
 981         HCI_CONN_MODE_CHANGE_PEND,
 982         HCI_CONN_SCO_SETUP_PEND,
 983         HCI_CONN_MGMT_CONNECTED,
 984         HCI_CONN_SSP_ENABLED,
 985         HCI_CONN_SC_ENABLED,
 986         HCI_CONN_AES_CCM,
 987         HCI_CONN_POWER_SAVE,
 988         HCI_CONN_FLUSH_KEY,
 989         HCI_CONN_ENCRYPT,
 990         HCI_CONN_AUTH,
 991         HCI_CONN_SECURE,
 992         HCI_CONN_FIPS,
 993         HCI_CONN_STK_ENCRYPT,
 994         HCI_CONN_AUTH_INITIATOR,
 995         HCI_CONN_DROP,
 996         HCI_CONN_CANCEL,
 997         HCI_CONN_PARAM_REMOVAL_PEND,
 998         HCI_CONN_NEW_LINK_KEY,
 999         HCI_CONN_SCANNING,
1000         HCI_CONN_AUTH_FAILURE,
1001         HCI_CONN_PER_ADV,
1002         HCI_CONN_BIG_CREATED,
1003         HCI_CONN_CREATE_CIS,
1004         HCI_CONN_BIG_SYNC,
1005         HCI_CONN_BIG_SYNC_FAILED,
1006         HCI_CONN_PA_SYNC,
1007         HCI_CONN_PA_SYNC_FAILED,
1008 };
1009
1010 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
1011 {
1012         struct hci_dev *hdev = conn->hdev;
1013         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
1014                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
1015 }
1016
1017 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
1018 {
1019         struct hci_dev *hdev = conn->hdev;
1020         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
1021                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
1022 }
1023
1024 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
1025 {
1026         struct hci_conn_hash *h = &hdev->conn_hash;
1027         list_add_tail_rcu(&c->list, &h->list);
1028         switch (c->type) {
1029         case ACL_LINK:
1030                 h->acl_num++;
1031                 break;
1032         case AMP_LINK:
1033                 h->amp_num++;
1034                 break;
1035         case LE_LINK:
1036                 h->le_num++;
1037                 if (c->role == HCI_ROLE_SLAVE)
1038                         h->le_num_peripheral++;
1039                 break;
1040         case SCO_LINK:
1041         case ESCO_LINK:
1042                 h->sco_num++;
1043                 break;
1044         case ISO_LINK:
1045                 h->iso_num++;
1046                 break;
1047         }
1048 }
1049
1050 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1051 {
1052         struct hci_conn_hash *h = &hdev->conn_hash;
1053
1054         list_del_rcu(&c->list);
1055         synchronize_rcu();
1056
1057         switch (c->type) {
1058         case ACL_LINK:
1059                 h->acl_num--;
1060                 break;
1061         case AMP_LINK:
1062                 h->amp_num--;
1063                 break;
1064         case LE_LINK:
1065                 h->le_num--;
1066                 if (c->role == HCI_ROLE_SLAVE)
1067                         h->le_num_peripheral--;
1068                 break;
1069         case SCO_LINK:
1070         case ESCO_LINK:
1071                 h->sco_num--;
1072                 break;
1073         case ISO_LINK:
1074                 h->iso_num--;
1075                 break;
1076         }
1077 }
1078
1079 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1080 {
1081         struct hci_conn_hash *h = &hdev->conn_hash;
1082         switch (type) {
1083         case ACL_LINK:
1084                 return h->acl_num;
1085         case AMP_LINK:
1086                 return h->amp_num;
1087         case LE_LINK:
1088                 return h->le_num;
1089         case SCO_LINK:
1090         case ESCO_LINK:
1091                 return h->sco_num;
1092         case ISO_LINK:
1093                 return h->iso_num;
1094         default:
1095                 return 0;
1096         }
1097 }
1098
1099 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1100 {
1101         struct hci_conn_hash *c = &hdev->conn_hash;
1102
1103         return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
1104 }
1105
1106 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1107 {
1108         struct hci_conn_hash *h = &hdev->conn_hash;
1109         struct hci_conn *c;
1110         __u8 type = INVALID_LINK;
1111
1112         rcu_read_lock();
1113
1114         list_for_each_entry_rcu(c, &h->list, list) {
1115                 if (c->handle == handle) {
1116                         type = c->type;
1117                         break;
1118                 }
1119         }
1120
1121         rcu_read_unlock();
1122
1123         return type;
1124 }
1125
1126 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1127                                                         bdaddr_t *ba, __u8 bis)
1128 {
1129         struct hci_conn_hash *h = &hdev->conn_hash;
1130         struct hci_conn  *c;
1131
1132         rcu_read_lock();
1133
1134         list_for_each_entry_rcu(c, &h->list, list) {
1135                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1136                         continue;
1137
1138                 if (c->iso_qos.bcast.bis == bis) {
1139                         rcu_read_unlock();
1140                         return c;
1141                 }
1142         }
1143         rcu_read_unlock();
1144
1145         return NULL;
1146 }
1147
1148 static inline struct hci_conn *
1149 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1150                                  bdaddr_t *ba,
1151                                  __u8 big, __u8 bis)
1152 {
1153         struct hci_conn_hash *h = &hdev->conn_hash;
1154         struct hci_conn  *c;
1155
1156         rcu_read_lock();
1157
1158         list_for_each_entry_rcu(c, &h->list, list) {
1159                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1160                         !test_bit(HCI_CONN_PER_ADV, &c->flags))
1161                         continue;
1162
1163                 if (c->iso_qos.bcast.big == big &&
1164                     c->iso_qos.bcast.bis == bis) {
1165                         rcu_read_unlock();
1166                         return c;
1167                 }
1168         }
1169         rcu_read_unlock();
1170
1171         return NULL;
1172 }
1173
1174 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1175                                                                 __u16 handle)
1176 {
1177         struct hci_conn_hash *h = &hdev->conn_hash;
1178         struct hci_conn  *c;
1179
1180         rcu_read_lock();
1181
1182         list_for_each_entry_rcu(c, &h->list, list) {
1183                 if (c->handle == handle) {
1184                         rcu_read_unlock();
1185                         return c;
1186                 }
1187         }
1188         rcu_read_unlock();
1189
1190         return NULL;
1191 }
1192
1193 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1194                                                         __u8 type, bdaddr_t *ba)
1195 {
1196         struct hci_conn_hash *h = &hdev->conn_hash;
1197         struct hci_conn  *c;
1198
1199         rcu_read_lock();
1200
1201         list_for_each_entry_rcu(c, &h->list, list) {
1202                 if (c->type == type && !bacmp(&c->dst, ba)) {
1203                         rcu_read_unlock();
1204                         return c;
1205                 }
1206         }
1207
1208         rcu_read_unlock();
1209
1210         return NULL;
1211 }
1212
1213 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1214                                                        bdaddr_t *ba,
1215                                                        __u8 ba_type)
1216 {
1217         struct hci_conn_hash *h = &hdev->conn_hash;
1218         struct hci_conn  *c;
1219
1220         rcu_read_lock();
1221
1222         list_for_each_entry_rcu(c, &h->list, list) {
1223                 if (c->type != LE_LINK)
1224                        continue;
1225
1226                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1227                         rcu_read_unlock();
1228                         return c;
1229                 }
1230         }
1231
1232         rcu_read_unlock();
1233
1234         return NULL;
1235 }
1236
1237 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1238                                                         bdaddr_t *ba,
1239                                                         __u8 ba_type,
1240                                                         __u8 cig,
1241                                                         __u8 id)
1242 {
1243         struct hci_conn_hash *h = &hdev->conn_hash;
1244         struct hci_conn  *c;
1245
1246         rcu_read_lock();
1247
1248         list_for_each_entry_rcu(c, &h->list, list) {
1249                 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1250                         continue;
1251
1252                 /* Match CIG ID if set */
1253                 if (cig != c->iso_qos.ucast.cig)
1254                         continue;
1255
1256                 /* Match CIS ID if set */
1257                 if (id != c->iso_qos.ucast.cis)
1258                         continue;
1259
1260                 /* Match destination address if set */
1261                 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1262                         rcu_read_unlock();
1263                         return c;
1264                 }
1265         }
1266
1267         rcu_read_unlock();
1268
1269         return NULL;
1270 }
1271
1272 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1273                                                         __u8 handle)
1274 {
1275         struct hci_conn_hash *h = &hdev->conn_hash;
1276         struct hci_conn  *c;
1277
1278         rcu_read_lock();
1279
1280         list_for_each_entry_rcu(c, &h->list, list) {
1281                 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1282                         continue;
1283
1284                 if (handle == c->iso_qos.ucast.cig) {
1285                         rcu_read_unlock();
1286                         return c;
1287                 }
1288         }
1289
1290         rcu_read_unlock();
1291
1292         return NULL;
1293 }
1294
1295 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1296                                                         __u8 handle)
1297 {
1298         struct hci_conn_hash *h = &hdev->conn_hash;
1299         struct hci_conn  *c;
1300
1301         rcu_read_lock();
1302
1303         list_for_each_entry_rcu(c, &h->list, list) {
1304                 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1305                         continue;
1306
1307                 if (handle == c->iso_qos.bcast.big) {
1308                         rcu_read_unlock();
1309                         return c;
1310                 }
1311         }
1312
1313         rcu_read_unlock();
1314
1315         return NULL;
1316 }
1317
1318 static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(struct hci_dev *hdev,
1319                                                         __u8 handle)
1320 {
1321         struct hci_conn_hash *h = &hdev->conn_hash;
1322         struct hci_conn  *c;
1323
1324         rcu_read_lock();
1325
1326         list_for_each_entry_rcu(c, &h->list, list) {
1327                 if (c->type != ISO_LINK)
1328                         continue;
1329
1330                 if (handle != BT_ISO_QOS_BIG_UNSET && handle == c->iso_qos.bcast.big) {
1331                         rcu_read_unlock();
1332                         return c;
1333                 }
1334         }
1335
1336         rcu_read_unlock();
1337
1338         return NULL;
1339 }
1340
1341 static inline struct hci_conn *
1342 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1343 {
1344         struct hci_conn_hash *h = &hdev->conn_hash;
1345         struct hci_conn  *c;
1346
1347         rcu_read_lock();
1348
1349         list_for_each_entry_rcu(c, &h->list, list) {
1350                 if (c->type != ISO_LINK ||
1351                         !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1352                         continue;
1353
1354                 if (c->iso_qos.bcast.big == big) {
1355                         rcu_read_unlock();
1356                         return c;
1357                 }
1358         }
1359         rcu_read_unlock();
1360
1361         return NULL;
1362 }
1363
1364 static inline struct hci_conn *
1365 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1366 {
1367         struct hci_conn_hash *h = &hdev->conn_hash;
1368         struct hci_conn  *c;
1369
1370         rcu_read_lock();
1371
1372         list_for_each_entry_rcu(c, &h->list, list) {
1373                 if (c->type != ISO_LINK ||
1374                         !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1375                         continue;
1376
1377                 if (c->sync_handle == sync_handle) {
1378                         rcu_read_unlock();
1379                         return c;
1380                 }
1381         }
1382         rcu_read_unlock();
1383
1384         return NULL;
1385 }
1386
1387 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1388                                                         __u8 type, __u16 state)
1389 {
1390         struct hci_conn_hash *h = &hdev->conn_hash;
1391         struct hci_conn  *c;
1392
1393         rcu_read_lock();
1394
1395         list_for_each_entry_rcu(c, &h->list, list) {
1396                 if (c->type == type && c->state == state) {
1397                         rcu_read_unlock();
1398                         return c;
1399                 }
1400         }
1401
1402         rcu_read_unlock();
1403
1404         return NULL;
1405 }
1406
1407 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
1408 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1409                                             hci_conn_func_t func, __u8 type,
1410                                             __u16 state, void *data)
1411 {
1412         struct hci_conn_hash *h = &hdev->conn_hash;
1413         struct hci_conn  *c;
1414
1415         if (!func)
1416                 return;
1417
1418         rcu_read_lock();
1419
1420         list_for_each_entry_rcu(c, &h->list, list) {
1421                 if (c->type == type && c->state == state)
1422                         func(c, data);
1423         }
1424
1425         rcu_read_unlock();
1426 }
1427
1428 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1429 {
1430         struct hci_conn_hash *h = &hdev->conn_hash;
1431         struct hci_conn  *c;
1432
1433         rcu_read_lock();
1434
1435         list_for_each_entry_rcu(c, &h->list, list) {
1436                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1437                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1438                         rcu_read_unlock();
1439                         return c;
1440                 }
1441         }
1442
1443         rcu_read_unlock();
1444
1445         return NULL;
1446 }
1447
1448 /* Returns true if an le connection is in the scanning state */
1449 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1450 {
1451         struct hci_conn_hash *h = &hdev->conn_hash;
1452         struct hci_conn  *c;
1453
1454         rcu_read_lock();
1455
1456         list_for_each_entry_rcu(c, &h->list, list) {
1457                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1458                     test_bit(HCI_CONN_SCANNING, &c->flags)) {
1459                         rcu_read_unlock();
1460                         return true;
1461                 }
1462         }
1463
1464         rcu_read_unlock();
1465
1466         return false;
1467 }
1468
1469 #ifdef TIZEN_BT
1470 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1471                                         __u8 type, bdaddr_t *ba, bool value)
1472 {
1473         struct hci_conn_hash *h = &hdev->conn_hash;
1474         struct hci_conn  *c;
1475         __u8 conn_type;
1476
1477         if (type == 0x01)
1478                 conn_type = LE_LINK;
1479         else
1480                 conn_type = ACL_LINK;
1481
1482         rcu_read_lock();
1483
1484         list_for_each_entry_rcu(c, &h->list, list) {
1485                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1486                         c->rssi_monitored = value;
1487                         rcu_read_unlock();
1488                         return true;
1489                 }
1490         }
1491
1492         rcu_read_unlock();
1493         return false;
1494 }
1495
1496 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1497                                         __u8 type)
1498 {
1499         struct hci_conn_hash *h = &hdev->conn_hash;
1500         struct hci_conn  *c;
1501         __u8 conn_type;
1502
1503         if (type == 0x01)
1504                 conn_type = LE_LINK;
1505         else
1506                 conn_type = ACL_LINK;
1507
1508         rcu_read_lock();
1509         list_for_each_entry_rcu(c, &h->list, list) {
1510                 if (c->type == conn_type)
1511                         c->rssi_monitored = false;
1512 }
1513         rcu_read_unlock();
1514 }
1515
1516 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1517 {
1518         struct hci_conn_hash *h = &hdev->conn_hash;
1519         struct hci_conn  *c;
1520         int count = 0;
1521
1522         rcu_read_lock();
1523         list_for_each_entry_rcu(c, &h->list, list) {
1524                 if (c->rssi_monitored == true)
1525                         ++count;
1526         }
1527         rcu_read_unlock();
1528
1529         return count;
1530 }
1531
1532 bool hci_le_discovery_active(struct hci_dev *hdev);
1533 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1534
1535 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
1536 {
1537         struct hci_conn_hash *h = &hdev->conn_hash;
1538         struct hci_conn  *c;
1539
1540         rcu_read_lock();
1541         list_for_each_entry_rcu(c, &h->list, list) {
1542                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
1543                         rcu_read_unlock();
1544                         return c;
1545                 }
1546         }
1547         rcu_read_unlock();
1548
1549         return NULL;
1550 }
1551 #endif
1552
1553 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1554 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1555 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1556 bool hci_iso_setup_path(struct hci_conn *conn);
1557 int hci_le_create_cis_pending(struct hci_dev *hdev);
1558 int hci_conn_check_create_cis(struct hci_conn *conn);
1559
1560 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1561                               u8 role, u16 handle);
1562 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1563                                     bdaddr_t *dst, u8 role);
1564 void hci_conn_del(struct hci_conn *conn);
1565 void hci_conn_hash_flush(struct hci_dev *hdev);
1566 void hci_conn_check_pending(struct hci_dev *hdev);
1567
1568 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1569 void hci_chan_del(struct hci_chan *chan);
1570 void hci_chan_list_flush(struct hci_conn *conn);
1571 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1572
1573 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1574                                      u8 dst_type, u8 sec_level,
1575                                      u16 conn_timeout,
1576                                      enum conn_reasons conn_reason);
1577 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1578                                 u8 dst_type, bool dst_resolved, u8 sec_level,
1579                                 u16 conn_timeout, u8 role);
1580 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1581                                  u8 sec_level, u8 auth_type,
1582                                  enum conn_reasons conn_reason);
1583 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1584                                  __u16 setting, struct bt_codec *codec);
1585 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1586                               __u8 dst_type, struct bt_iso_qos *qos);
1587 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1588                               struct bt_iso_qos *qos,
1589                               __u8 base_len, __u8 *base);
1590 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1591                                  __u8 dst_type, struct bt_iso_qos *qos);
1592 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1593                                  __u8 dst_type, struct bt_iso_qos *qos,
1594                                  __u8 data_len, __u8 *data);
1595 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1596                        __u8 sid, struct bt_iso_qos *qos);
1597 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1598                            struct bt_iso_qos *qos,
1599                            __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1600 int hci_conn_check_link_mode(struct hci_conn *conn);
1601 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1602 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1603                       bool initiator);
1604 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1605
1606 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1607
1608 void hci_conn_failed(struct hci_conn *conn, u8 status);
1609 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1610
1611 /*
1612  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1613  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1614  * working or anything else. They just guarantee that the object is available
1615  * and can be dereferenced. So you can use its locks, local variables and any
1616  * other constant data.
1617  * Before accessing runtime data, you _must_ lock the object and then check that
1618  * it is still running. As soon as you release the locks, the connection might
1619  * get dropped, though.
1620  *
1621  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1622  * how long the underlying connection is held. So every channel that runs on the
1623  * hci_conn object calls this to prevent the connection from disappearing. As
1624  * long as you hold a device, you must also guarantee that you have a valid
1625  * reference to the device via hci_conn_get() (or the initial reference from
1626  * hci_conn_add()).
1627  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1628  * break because nobody cares for that. But this means, we cannot use
1629  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1630  */
1631
1632 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1633 {
1634         get_device(&conn->dev);
1635         return conn;
1636 }
1637
1638 static inline void hci_conn_put(struct hci_conn *conn)
1639 {
1640         put_device(&conn->dev);
1641 }
1642
1643 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1644 {
1645         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1646
1647         atomic_inc(&conn->refcnt);
1648         cancel_delayed_work(&conn->disc_work);
1649
1650         return conn;
1651 }
1652
1653 static inline void hci_conn_drop(struct hci_conn *conn)
1654 {
1655         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1656
1657         if (atomic_dec_and_test(&conn->refcnt)) {
1658                 unsigned long timeo;
1659
1660                 switch (conn->type) {
1661                 case ACL_LINK:
1662                 case LE_LINK:
1663                         cancel_delayed_work(&conn->idle_work);
1664                         if (conn->state == BT_CONNECTED) {
1665                                 timeo = conn->disc_timeout;
1666                                 if (!conn->out)
1667                                         timeo *= 2;
1668                         } else {
1669                                 timeo = 0;
1670                         }
1671                         break;
1672
1673                 case AMP_LINK:
1674                         timeo = conn->disc_timeout;
1675                         break;
1676
1677                 default:
1678                         timeo = 0;
1679                         break;
1680                 }
1681
1682                 cancel_delayed_work(&conn->disc_work);
1683                 queue_delayed_work(conn->hdev->workqueue,
1684                                    &conn->disc_work, timeo);
1685         }
1686 }
1687
1688 /* ----- HCI Devices ----- */
1689 static inline void hci_dev_put(struct hci_dev *d)
1690 {
1691         BT_DBG("%s orig refcnt %d", d->name,
1692                kref_read(&d->dev.kobj.kref));
1693
1694         put_device(&d->dev);
1695 }
1696
1697 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1698 {
1699         BT_DBG("%s orig refcnt %d", d->name,
1700                kref_read(&d->dev.kobj.kref));
1701
1702         get_device(&d->dev);
1703         return d;
1704 }
1705
1706 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1707 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1708
1709 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1710 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1711
1712 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1713 {
1714         return dev_get_drvdata(&hdev->dev);
1715 }
1716
1717 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1718 {
1719         dev_set_drvdata(&hdev->dev, data);
1720 }
1721
1722 static inline void *hci_get_priv(struct hci_dev *hdev)
1723 {
1724         return (char *)hdev + sizeof(*hdev);
1725 }
1726
1727 struct hci_dev *hci_dev_get(int index);
1728 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1729
1730 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1731
1732 static inline struct hci_dev *hci_alloc_dev(void)
1733 {
1734         return hci_alloc_dev_priv(0);
1735 }
1736
1737 void hci_free_dev(struct hci_dev *hdev);
1738 int hci_register_dev(struct hci_dev *hdev);
1739 void hci_unregister_dev(struct hci_dev *hdev);
1740 void hci_release_dev(struct hci_dev *hdev);
1741 int hci_register_suspend_notifier(struct hci_dev *hdev);
1742 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1743 int hci_suspend_dev(struct hci_dev *hdev);
1744 int hci_resume_dev(struct hci_dev *hdev);
1745 int hci_reset_dev(struct hci_dev *hdev);
1746 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1747 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1748 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1749 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1750
1751 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1752 {
1753 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1754         hdev->msft_opcode = opcode;
1755 #endif
1756 }
1757
1758 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1759 {
1760 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1761         hdev->aosp_capable = true;
1762 #endif
1763 }
1764
1765 static inline void hci_devcd_setup(struct hci_dev *hdev)
1766 {
1767 #ifdef CONFIG_DEV_COREDUMP
1768         INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1769         INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1770         skb_queue_head_init(&hdev->dump.dump_q);
1771 #endif
1772 }
1773
1774 int hci_dev_open(__u16 dev);
1775 int hci_dev_close(__u16 dev);
1776 int hci_dev_do_close(struct hci_dev *hdev);
1777 int hci_dev_reset(__u16 dev);
1778 int hci_dev_reset_stat(__u16 dev);
1779 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1780 int hci_get_dev_list(void __user *arg);
1781 int hci_get_dev_info(void __user *arg);
1782 int hci_get_conn_list(void __user *arg);
1783 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1784 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1785 int hci_inquiry(void __user *arg);
1786
1787 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1788                                            bdaddr_t *bdaddr, u8 type);
1789 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1790                                     struct list_head *list, bdaddr_t *bdaddr,
1791                                     u8 type);
1792 struct bdaddr_list_with_flags *
1793 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1794                                   u8 type);
1795 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1796 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1797                                  u8 type, u8 *peer_irk, u8 *local_irk);
1798 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1799                                    u8 type, u32 flags);
1800 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1801 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1802                                  u8 type);
1803 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1804                                    u8 type);
1805 void hci_bdaddr_list_clear(struct list_head *list);
1806
1807 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1808                                                bdaddr_t *addr, u8 addr_type);
1809 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1810                                             bdaddr_t *addr, u8 addr_type);
1811 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1812 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1813 void hci_conn_params_free(struct hci_conn_params *param);
1814
1815 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1816 void hci_pend_le_list_add(struct hci_conn_params *param,
1817                           struct list_head *list);
1818 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1819                                                   bdaddr_t *addr,
1820                                                   u8 addr_type);
1821
1822 void hci_uuids_clear(struct hci_dev *hdev);
1823
1824 void hci_link_keys_clear(struct hci_dev *hdev);
1825 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1826 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1827                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1828                                   u8 pin_len, bool *persistent);
1829 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1830                             u8 addr_type, u8 type, u8 authenticated,
1831                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1832 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1833                              u8 addr_type, u8 role);
1834 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1835 void hci_smp_ltks_clear(struct hci_dev *hdev);
1836 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1837
1838 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1839 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1840                                      u8 addr_type);
1841 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1842                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1843 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1844 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1845 void hci_blocked_keys_clear(struct hci_dev *hdev);
1846 void hci_smp_irks_clear(struct hci_dev *hdev);
1847
1848 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1849
1850 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1851 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1852                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1853 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1854                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1855                             u8 *hash256, u8 *rand256);
1856 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1857                                u8 bdaddr_type);
1858
1859 void hci_adv_instances_clear(struct hci_dev *hdev);
1860 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1861 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1862 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1863                                       u32 flags, u16 adv_data_len, u8 *adv_data,
1864                                       u16 scan_rsp_len, u8 *scan_rsp_data,
1865                                       u16 timeout, u16 duration, s8 tx_power,
1866                                       u32 min_interval, u32 max_interval,
1867                                       u8 mesh_handle);
1868 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1869                                       u32 flags, u8 data_len, u8 *data,
1870                                       u32 min_interval, u32 max_interval);
1871 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1872                          u16 adv_data_len, u8 *adv_data,
1873                          u16 scan_rsp_len, u8 *scan_rsp_data);
1874 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1875 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1876 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1877 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1878
1879 void hci_adv_monitors_clear(struct hci_dev *hdev);
1880 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1881 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1882 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1883 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1884 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1885 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1886
1887 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1888
1889 void hci_init_sysfs(struct hci_dev *hdev);
1890 void hci_conn_init_sysfs(struct hci_conn *conn);
1891 void hci_conn_add_sysfs(struct hci_conn *conn);
1892 void hci_conn_del_sysfs(struct hci_conn *conn);
1893
1894 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1895 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1896
1897 /* ----- LMP capabilities ----- */
1898 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1899 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1900 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1901 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1902 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1903 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1904 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1905 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1906 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1907 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1908 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1909 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1910 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1911 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1912 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1913 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1914 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1915 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1916 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1917 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1918 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1919 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1920 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1921 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1922
1923 /* ----- Extended LMP capabilities ----- */
1924 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1925 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1926 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1927 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1928 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1929 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1930
1931 /* ----- Host capabilities ----- */
1932 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1933 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1934 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1935 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1936
1937 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1938                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1939 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1940                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1941 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1942                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1943 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1944                                 !adv->rpa_expired)
1945
1946 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1947                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1948
1949 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1950
1951 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1952                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1953
1954 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1955                                !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1956                                          &(dev)->quirks))
1957
1958 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1959                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1960
1961 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1962
1963 /* Use LL Privacy based address resolution if supported */
1964 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1965                              hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1966
1967 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1968                                    (hdev->commands[39] & 0x04))
1969
1970 /* Use enhanced synchronous connection if command is supported and its quirk
1971  * has not been set.
1972  */
1973 #define enhanced_sync_conn_capable(dev) \
1974         (((dev)->commands[29] & 0x08) && \
1975          !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1976
1977 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1978 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1979                            ((dev)->commands[37] & 0x40) && \
1980                            !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1981
1982 /* Use ext create connection if command is supported */
1983 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1984
1985 /* Extended advertising support */
1986 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1987
1988 /* Maximum advertising length */
1989 #define max_adv_len(dev) \
1990         (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
1991
1992 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
1993  *
1994  * C24: Mandatory if the LE Controller supports Connection State and either
1995  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
1996  */
1997 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
1998                                          ext_adv_capable(dev))
1999
2000 /* Periodic advertising support */
2001 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
2002
2003 /* CIS Master/Slave and BIS support */
2004 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
2005 #define cis_capable(dev) \
2006         (cis_central_capable(dev) || cis_peripheral_capable(dev))
2007 #define cis_central_capable(dev) \
2008         ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
2009 #define cis_peripheral_capable(dev) \
2010         ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
2011 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
2012 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
2013
2014 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
2015         (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
2016
2017 /* ----- HCI protocols ----- */
2018 #define HCI_PROTO_DEFER             0x01
2019
2020 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
2021                                         __u8 type, __u8 *flags)
2022 {
2023         switch (type) {
2024         case ACL_LINK:
2025                 return l2cap_connect_ind(hdev, bdaddr);
2026
2027         case SCO_LINK:
2028         case ESCO_LINK:
2029                 return sco_connect_ind(hdev, bdaddr, flags);
2030
2031         case ISO_LINK:
2032                 return iso_connect_ind(hdev, bdaddr, flags);
2033
2034         default:
2035                 BT_ERR("unknown link type %d", type);
2036                 return -EINVAL;
2037         }
2038 }
2039
2040 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
2041 {
2042         if (conn->type != ACL_LINK && conn->type != LE_LINK)
2043                 return HCI_ERROR_REMOTE_USER_TERM;
2044
2045         return l2cap_disconn_ind(conn);
2046 }
2047
2048 /* ----- HCI callbacks ----- */
2049 struct hci_cb {
2050         struct list_head list;
2051
2052         char *name;
2053
2054         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
2055         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
2056         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
2057                                                                 __u8 encrypt);
2058         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
2059         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
2060 };
2061
2062 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
2063 {
2064         struct hci_cb *cb;
2065
2066         mutex_lock(&hci_cb_list_lock);
2067         list_for_each_entry(cb, &hci_cb_list, list) {
2068                 if (cb->connect_cfm)
2069                         cb->connect_cfm(conn, status);
2070         }
2071         mutex_unlock(&hci_cb_list_lock);
2072
2073         if (conn->connect_cfm_cb)
2074                 conn->connect_cfm_cb(conn, status);
2075 }
2076
2077 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
2078 {
2079         struct hci_cb *cb;
2080
2081         mutex_lock(&hci_cb_list_lock);
2082         list_for_each_entry(cb, &hci_cb_list, list) {
2083                 if (cb->disconn_cfm)
2084                         cb->disconn_cfm(conn, reason);
2085         }
2086         mutex_unlock(&hci_cb_list_lock);
2087
2088         if (conn->disconn_cfm_cb)
2089                 conn->disconn_cfm_cb(conn, reason);
2090 }
2091
2092 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2093 {
2094         struct hci_cb *cb;
2095         __u8 encrypt;
2096
2097         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2098                 return;
2099
2100         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2101
2102         mutex_lock(&hci_cb_list_lock);
2103         list_for_each_entry(cb, &hci_cb_list, list) {
2104                 if (cb->security_cfm)
2105                         cb->security_cfm(conn, status, encrypt);
2106         }
2107         mutex_unlock(&hci_cb_list_lock);
2108
2109         if (conn->security_cfm_cb)
2110                 conn->security_cfm_cb(conn, status);
2111 }
2112
2113 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2114 {
2115         struct hci_cb *cb;
2116         __u8 encrypt;
2117
2118         if (conn->state == BT_CONFIG) {
2119                 if (!status)
2120                         conn->state = BT_CONNECTED;
2121
2122                 hci_connect_cfm(conn, status);
2123                 hci_conn_drop(conn);
2124                 return;
2125         }
2126
2127         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2128                 encrypt = 0x00;
2129         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2130                 encrypt = 0x02;
2131         else
2132                 encrypt = 0x01;
2133
2134         if (!status) {
2135                 if (conn->sec_level == BT_SECURITY_SDP)
2136                         conn->sec_level = BT_SECURITY_LOW;
2137
2138                 if (conn->pending_sec_level > conn->sec_level)
2139                         conn->sec_level = conn->pending_sec_level;
2140         }
2141
2142         mutex_lock(&hci_cb_list_lock);
2143         list_for_each_entry(cb, &hci_cb_list, list) {
2144                 if (cb->security_cfm)
2145                         cb->security_cfm(conn, status, encrypt);
2146         }
2147         mutex_unlock(&hci_cb_list_lock);
2148
2149         if (conn->security_cfm_cb)
2150                 conn->security_cfm_cb(conn, status);
2151 }
2152
2153 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2154 {
2155         struct hci_cb *cb;
2156
2157         mutex_lock(&hci_cb_list_lock);
2158         list_for_each_entry(cb, &hci_cb_list, list) {
2159                 if (cb->key_change_cfm)
2160                         cb->key_change_cfm(conn, status);
2161         }
2162         mutex_unlock(&hci_cb_list_lock);
2163 }
2164
2165 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2166                                                                 __u8 role)
2167 {
2168         struct hci_cb *cb;
2169
2170         mutex_lock(&hci_cb_list_lock);
2171         list_for_each_entry(cb, &hci_cb_list, list) {
2172                 if (cb->role_switch_cfm)
2173                         cb->role_switch_cfm(conn, status, role);
2174         }
2175         mutex_unlock(&hci_cb_list_lock);
2176 }
2177
2178 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2179 {
2180         if (addr_type != ADDR_LE_DEV_RANDOM)
2181                 return false;
2182
2183         if ((bdaddr->b[5] & 0xc0) == 0x40)
2184                return true;
2185
2186         return false;
2187 }
2188
2189 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2190 {
2191         if (addr_type == ADDR_LE_DEV_PUBLIC)
2192                 return true;
2193
2194         /* Check for Random Static address type */
2195         if ((addr->b[5] & 0xc0) == 0xc0)
2196                 return true;
2197
2198         return false;
2199 }
2200
2201 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2202                                           bdaddr_t *bdaddr, u8 addr_type)
2203 {
2204         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2205                 return NULL;
2206
2207         return hci_find_irk_by_rpa(hdev, bdaddr);
2208 }
2209
2210 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2211                                         u16 to_multiplier)
2212 {
2213         u16 max_latency;
2214
2215         if (min > max || min < 6 || max > 3200)
2216                 return -EINVAL;
2217
2218         if (to_multiplier < 10 || to_multiplier > 3200)
2219                 return -EINVAL;
2220
2221         if (max >= to_multiplier * 8)
2222                 return -EINVAL;
2223
2224         max_latency = (to_multiplier * 4 / max) - 1;
2225         if (latency > 499 || latency > max_latency)
2226                 return -EINVAL;
2227
2228         return 0;
2229 }
2230
2231 int hci_register_cb(struct hci_cb *hcb);
2232 int hci_unregister_cb(struct hci_cb *hcb);
2233
2234 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2235                    const void *param);
2236
2237 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2238                  const void *param);
2239 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2240 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2241 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2242
2243 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2244 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2245
2246 u32 hci_conn_get_phy(struct hci_conn *conn);
2247
2248 /* ----- HCI Sockets ----- */
2249 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2250 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2251                          int flag, struct sock *skip_sk);
2252 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2253 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2254                                  void *data, u16 data_len, ktime_t tstamp,
2255                                  int flag, struct sock *skip_sk);
2256
2257 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2258
2259 #define HCI_MGMT_VAR_LEN        BIT(0)
2260 #define HCI_MGMT_NO_HDEV        BIT(1)
2261 #define HCI_MGMT_UNTRUSTED      BIT(2)
2262 #define HCI_MGMT_UNCONFIGURED   BIT(3)
2263 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
2264
2265 struct hci_mgmt_handler {
2266         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2267                      u16 data_len);
2268         size_t data_len;
2269         unsigned long flags;
2270 };
2271
2272 struct hci_mgmt_chan {
2273         struct list_head list;
2274         unsigned short channel;
2275         size_t handler_count;
2276         const struct hci_mgmt_handler *handlers;
2277 #ifdef TIZEN_BT
2278         size_t tizen_handler_count;
2279         const struct hci_mgmt_handler *tizen_handlers;
2280 #endif
2281         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2282 };
2283
2284 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2285 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2286
2287 /* Management interface */
2288 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
2289 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
2290                                          BIT(BDADDR_LE_RANDOM))
2291 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
2292                                          BIT(BDADDR_LE_PUBLIC) | \
2293                                          BIT(BDADDR_LE_RANDOM))
2294
2295 /* These LE scan and inquiry parameters were chosen according to LE General
2296  * Discovery Procedure specification.
2297  */
2298 #define DISCOV_LE_SCAN_WIN              0x12
2299 #define DISCOV_LE_SCAN_INT              0x12
2300 #define DISCOV_LE_TIMEOUT               10240   /* msec */
2301 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
2302 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
2303 #define DISCOV_BREDR_INQUIRY_LEN        0x08
2304 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
2305 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
2306 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
2307 #define DISCOV_LE_PER_ADV_INT_MIN       0x00A0  /* 200 msec */
2308 #define DISCOV_LE_PER_ADV_INT_MAX       0x00A0  /* 200 msec */
2309 #define DISCOV_LE_ADV_MESH_MIN          0x00A0  /* 100 msec */
2310 #define DISCOV_LE_ADV_MESH_MAX          0x00A0  /* 100 msec */
2311 #define INTERVAL_TO_MS(x)               (((x) * 10) / 0x10)
2312
2313 #define NAME_RESOLVE_DURATION           msecs_to_jiffies(10240) /* 10.24 sec */
2314
2315 void mgmt_fill_version_info(void *ver);
2316 int mgmt_new_settings(struct hci_dev *hdev);
2317 void mgmt_index_added(struct hci_dev *hdev);
2318 void mgmt_index_removed(struct hci_dev *hdev);
2319 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2320 void mgmt_power_on(struct hci_dev *hdev, int err);
2321 void __mgmt_power_off(struct hci_dev *hdev);
2322 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2323                        bool persistent);
2324 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2325                            u8 *name, u8 name_len);
2326 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2327                               u8 link_type, u8 addr_type, u8 reason,
2328                               bool mgmt_connected);
2329 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2330                             u8 link_type, u8 addr_type, u8 status);
2331 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2332                          u8 addr_type, u8 status);
2333 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2334 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2335                                   u8 status);
2336 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2337                                       u8 status);
2338 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2339                               u8 link_type, u8 addr_type, u32 value,
2340                               u8 confirm_hint);
2341 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2342                                      u8 link_type, u8 addr_type, u8 status);
2343 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2344                                          u8 link_type, u8 addr_type, u8 status);
2345 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2346                               u8 link_type, u8 addr_type);
2347 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2348                                      u8 link_type, u8 addr_type, u8 status);
2349 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2350                                          u8 link_type, u8 addr_type, u8 status);
2351 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2352                              u8 link_type, u8 addr_type, u32 passkey,
2353                              u8 entered);
2354 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2355 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2356 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2357                                     u8 status);
2358 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2359 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2360 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2361 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2362                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2363                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2364                        u64 instant);
2365 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2366                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2367 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2368 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2369 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2370                    u8 addr_type);
2371 bool mgmt_powering_down(struct hci_dev *hdev);
2372 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2373 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2374 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2375                    bool persistent);
2376 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2377                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
2378                          u16 max_interval, u16 latency, u16 timeout);
2379 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2380 bool mgmt_get_connectable(struct hci_dev *hdev);
2381 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2382 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2383                             u8 instance);
2384 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2385                               u8 instance);
2386 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2387 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2388 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2389                                   bdaddr_t *bdaddr, u8 addr_type);
2390
2391 #ifdef TIZEN_BT
2392 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
2393                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2394 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
2395                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2396 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
2397                 void *data, u16 len);
2398 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
2399                 s8 alert_type, s8 rssi_dbm);
2400 void mgmt_raw_rssi_response(struct hci_dev *hdev,
2401                 struct hci_cc_rp_get_raw_rssi *rp, int success);
2402 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
2403 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
2404                 u8 name_len);
2405 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
2406 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
2407                 u8 dst_type, u16 conn_interval, u16 conn_latency,
2408                 u16 supervision_timeout);
2409 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2410                 u8 link_type, u8 addr_type, u8 status);
2411 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
2412 void mgmt_tx_timeout_error(struct hci_dev *hdev);
2413 /*  Pass adv type in the le device found */
2414 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2415                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
2416                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
2417 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
2418                 u8 state_change_reason, u16 connection_handle);
2419 #endif
2420
2421 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2422 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2423                       u16 to_multiplier);
2424 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2425                       __u8 ltk[16], __u8 key_size);
2426
2427 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2428                                u8 *bdaddr_type);
2429
2430 #define SCO_AIRMODE_MASK       0x0003
2431 #define SCO_AIRMODE_CVSD       0x0000
2432 #define SCO_AIRMODE_TRANSP     0x0003
2433
2434 #define LOCAL_CODEC_ACL_MASK    BIT(0)
2435 #define LOCAL_CODEC_SCO_MASK    BIT(1)
2436
2437 #define TRANSPORT_TYPE_MAX      0x04
2438
2439 #endif /* __HCI_CORE_H */