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         __u16           handle;
 720         __u16           sync_handle;
 721         __u16           state;
 722         __u8            mode;
 723         __u8            type;
 724         __u8            role;
 725         bool            out;
 726         __u8            attempt;
 727         __u8            dev_class[3];
 728         __u8            features[HCI_MAX_PAGES][8];
 729         __u16           pkt_type;
 730         __u16           link_policy;
 731         __u8            key_type;
 732         __u8            auth_type;
 733         __u8            sec_level;
 734         __u8            pending_sec_level;
 735         __u8            pin_length;
 736         __u8            enc_key_size;
 737         __u8            io_capability;
 738         __u32           passkey_notify;
 739         __u8            passkey_entered;
 740         __u16           disc_timeout;
 741         __u16           conn_timeout;
 742         __u16           setting;
 743         __u16           auth_payload_timeout;
 744         __u16           le_conn_min_interval;
 745         __u16           le_conn_max_interval;
 746         __u16           le_conn_interval;
 747         __u16           le_conn_latency;
 748         __u16           le_supv_timeout;
 749         __u8            le_adv_data[HCI_MAX_EXT_AD_LENGTH];
 750         __u8            le_adv_data_len;
 751         __u8            le_per_adv_data[HCI_MAX_PER_AD_LENGTH];
 752         __u8            le_per_adv_data_len;
 753         __u8            le_tx_phy;
 754         __u8            le_rx_phy;
 755         __s8            rssi;
 756         __s8            tx_power;
 757         __s8            max_tx_power;
 758         struct bt_iso_qos iso_qos;
 759         unsigned long   flags;
 760
 761         enum conn_reasons conn_reason;
 762         __u8            abort_reason;
 763
 764         __u32           clock;
 765         __u16           clock_accuracy;
 766
 767         unsigned long   conn_info_timestamp;
 768
 769         __u8            remote_cap;
 770         __u8            remote_auth;
 771         __u8            remote_id;
 772
 773         unsigned int    sent;
 774 #ifdef TIZEN_BT
 775         __u16           tx_len;
 776         __u16           tx_time;
 777         __u16           rx_len;
 778         __u16           rx_time;
 779 #endif
 780
 781         struct sk_buff_head data_q;
 782         struct list_head chan_list;
 783
 784         struct delayed_work disc_work;
 785         struct delayed_work auto_accept_work;
 786         struct delayed_work idle_work;
 787         struct delayed_work le_conn_timeout;
 788
 789         struct device   dev;
 790         struct dentry   *debugfs;
 791
 792         struct hci_dev  *hdev;
 793         void            *l2cap_data;
 794         void            *sco_data;
 795         void            *iso_data;
 796         struct amp_mgr  *amp_mgr;
 797
 798 #ifdef TIZEN_BT
 799         bool            rssi_monitored;
 800         __u8            sco_role;
 801         __u16           voice_setting;
 802 #endif
 803         struct list_head link_list;
 804         struct hci_conn *parent;
 805         struct hci_link *link;
 806
 807         struct bt_codec codec;
 808
 809         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 810         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 811         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 812
 813         void (*cleanup)(struct hci_conn *conn);
 814 };
 815
 816 struct hci_link {
 817         struct list_head list;
 818         struct hci_conn *conn;
 819 };
 820
 821 struct hci_chan {
 822         struct list_head list;
 823         __u16 handle;
 824         struct hci_conn *conn;
 825         struct sk_buff_head data_q;
 826         unsigned int    sent;
 827         __u8            state;
 828         bool            amp;
 829 };
 830
 831 struct hci_conn_params {
 832         struct list_head list;
 833         struct list_head action;
 834
 835         bdaddr_t addr;
 836         u8 addr_type;
 837
 838         u16 conn_min_interval;
 839         u16 conn_max_interval;
 840         u16 conn_latency;
 841         u16 supervision_timeout;
 842
 843 #ifdef TIZEN_BT
 844         u16 max_tx_octets;
 845         u16 max_tx_time;
 846 #endif
 847         enum {
 848                 HCI_AUTO_CONN_DISABLED,
 849                 HCI_AUTO_CONN_REPORT,
 850                 HCI_AUTO_CONN_DIRECT,
 851                 HCI_AUTO_CONN_ALWAYS,
 852                 HCI_AUTO_CONN_LINK_LOSS,
 853                 HCI_AUTO_CONN_EXPLICIT,
 854         } auto_connect;
 855
 856         struct hci_conn *conn;
 857         bool explicit_connect;
 858         /* Accessed without hdev->lock: */
 859         hci_conn_flags_t flags;
 860         u8  privacy_mode;
 861 };
 862
 863 extern struct list_head hci_dev_list;
 864 extern struct list_head hci_cb_list;
 865 extern rwlock_t hci_dev_list_lock;
 866 extern struct mutex hci_cb_list_lock;
 867
 868 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 869 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 870 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 871 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 872 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 873 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 874 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 875
 876 #define hci_dev_clear_volatile_flags(hdev)                      \
 877         do {                                                    \
 878                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 879                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 880                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 881                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 882                 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);   \
 883         } while (0)
 884
 885 #define hci_dev_le_state_simultaneous(hdev) \
 886         (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \
 887          (hdev->le_states[4] & 0x08) && /* Central */ \
 888          (hdev->le_states[4] & 0x40) && /* Peripheral */ \
 889          (hdev->le_states[3] & 0x10))   /* Simultaneous */
 890
 891 /* ----- HCI interface to upper protocols ----- */
 892 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 893 int l2cap_disconn_ind(struct hci_conn *hcon);
 894 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 895
 896 #if IS_ENABLED(CONFIG_BT_BREDR)
 897 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 898 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 899 #else
 900 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 901                                   __u8 *flags)
 902 {
 903         return 0;
 904 }
 905
 906 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 907 {
 908 }
 909 #endif
 910
 911 #if IS_ENABLED(CONFIG_BT_LE)
 912 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 913 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 914 #else
 915 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 916                                   __u8 *flags)
 917 {
 918         return 0;
 919 }
 920 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb,
 921                             u16 flags)
 922 {
 923 }
 924 #endif
 925
 926 /* ----- Inquiry cache ----- */
 927 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 928 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 929
 930 static inline void discovery_init(struct hci_dev *hdev)
 931 {
 932         hdev->discovery.state = DISCOVERY_STOPPED;
 933         INIT_LIST_HEAD(&hdev->discovery.all);
 934         INIT_LIST_HEAD(&hdev->discovery.unknown);
 935         INIT_LIST_HEAD(&hdev->discovery.resolve);
 936         hdev->discovery.report_invalid_rssi = true;
 937         hdev->discovery.rssi = HCI_RSSI_INVALID;
 938 }
 939
 940 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 941 {
 942         hdev->discovery.result_filtering = false;
 943         hdev->discovery.report_invalid_rssi = true;
 944         hdev->discovery.rssi = HCI_RSSI_INVALID;
 945         hdev->discovery.uuid_count = 0;
 946         kfree(hdev->discovery.uuids);
 947         hdev->discovery.uuids = NULL;
 948         hdev->discovery.scan_start = 0;
 949         hdev->discovery.scan_duration = 0;
 950 }
 951
 952 bool hci_discovery_active(struct hci_dev *hdev);
 953
 954 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 955
 956 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 957 {
 958         return list_empty(&hdev->discovery.all);
 959 }
 960
 961 static inline long inquiry_cache_age(struct hci_dev *hdev)
 962 {
 963         struct discovery_state *c = &hdev->discovery;
 964         return jiffies - c->timestamp;
 965 }
 966
 967 static inline long inquiry_entry_age(struct inquiry_entry *e)
 968 {
 969         return jiffies - e->timestamp;
 970 }
 971
 972 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 973                                                bdaddr_t *bdaddr);
 974 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 975                                                        bdaddr_t *bdaddr);
 976 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 977                                                        bdaddr_t *bdaddr,
 978                                                        int state);
 979 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 980                                       struct inquiry_entry *ie);
 981 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 982                              bool name_known);
 983 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 984
 985 /* ----- HCI Connections ----- */
 986 #ifdef TIZEN_BT
 987 #define LINK_SUPERVISION_TIMEOUT        0x1F40   /* n * 0.625 = 5 seconds */
 988 #endif /* TIZEN_BT */
 989
 990 enum {
 991         HCI_CONN_AUTH_PEND,
 992         HCI_CONN_ENCRYPT_PEND,
 993         HCI_CONN_RSWITCH_PEND,
 994         HCI_CONN_MODE_CHANGE_PEND,
 995         HCI_CONN_SCO_SETUP_PEND,
 996         HCI_CONN_MGMT_CONNECTED,
 997         HCI_CONN_SSP_ENABLED,
 998         HCI_CONN_SC_ENABLED,
 999         HCI_CONN_AES_CCM,
1000         HCI_CONN_POWER_SAVE,
1001         HCI_CONN_FLUSH_KEY,
1002         HCI_CONN_ENCRYPT,
1003         HCI_CONN_AUTH,
1004         HCI_CONN_SECURE,
1005         HCI_CONN_FIPS,
1006         HCI_CONN_STK_ENCRYPT,
1007         HCI_CONN_AUTH_INITIATOR,
1008         HCI_CONN_DROP,
1009         HCI_CONN_CANCEL,
1010         HCI_CONN_PARAM_REMOVAL_PEND,
1011         HCI_CONN_NEW_LINK_KEY,
1012         HCI_CONN_SCANNING,
1013         HCI_CONN_AUTH_FAILURE,
1014         HCI_CONN_PER_ADV,
1015         HCI_CONN_BIG_CREATED,
1016         HCI_CONN_CREATE_CIS,
1017         HCI_CONN_BIG_SYNC,
1018         HCI_CONN_BIG_SYNC_FAILED,
1019         HCI_CONN_PA_SYNC,
1020         HCI_CONN_PA_SYNC_FAILED,
1021 };
1022
1023 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
1024 {
1025         struct hci_dev *hdev = conn->hdev;
1026         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
1027                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
1028 }
1029
1030 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
1031 {
1032         struct hci_dev *hdev = conn->hdev;
1033         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
1034                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
1035 }
1036
1037 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
1038 {
1039         struct hci_conn_hash *h = &hdev->conn_hash;
1040         list_add_tail_rcu(&c->list, &h->list);
1041         switch (c->type) {
1042         case ACL_LINK:
1043                 h->acl_num++;
1044                 break;
1045         case AMP_LINK:
1046                 h->amp_num++;
1047                 break;
1048         case LE_LINK:
1049                 h->le_num++;
1050                 if (c->role == HCI_ROLE_SLAVE)
1051                         h->le_num_peripheral++;
1052                 break;
1053         case SCO_LINK:
1054         case ESCO_LINK:
1055                 h->sco_num++;
1056                 break;
1057         case ISO_LINK:
1058                 h->iso_num++;
1059                 break;
1060         }
1061 }
1062
1063 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
1064 {
1065         struct hci_conn_hash *h = &hdev->conn_hash;
1066
1067         list_del_rcu(&c->list);
1068         synchronize_rcu();
1069
1070         switch (c->type) {
1071         case ACL_LINK:
1072                 h->acl_num--;
1073                 break;
1074         case AMP_LINK:
1075                 h->amp_num--;
1076                 break;
1077         case LE_LINK:
1078                 h->le_num--;
1079                 if (c->role == HCI_ROLE_SLAVE)
1080                         h->le_num_peripheral--;
1081                 break;
1082         case SCO_LINK:
1083         case ESCO_LINK:
1084                 h->sco_num--;
1085                 break;
1086         case ISO_LINK:
1087                 h->iso_num--;
1088                 break;
1089         }
1090 }
1091
1092 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
1093 {
1094         struct hci_conn_hash *h = &hdev->conn_hash;
1095         switch (type) {
1096         case ACL_LINK:
1097                 return h->acl_num;
1098         case AMP_LINK:
1099                 return h->amp_num;
1100         case LE_LINK:
1101                 return h->le_num;
1102         case SCO_LINK:
1103         case ESCO_LINK:
1104                 return h->sco_num;
1105         case ISO_LINK:
1106                 return h->iso_num;
1107         default:
1108                 return 0;
1109         }
1110 }
1111
1112 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
1113 {
1114         struct hci_conn_hash *c = &hdev->conn_hash;
1115
1116         return c->acl_num + c->amp_num + c->sco_num + c->le_num + c->iso_num;
1117 }
1118
1119 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
1120 {
1121         struct hci_conn_hash *h = &hdev->conn_hash;
1122         struct hci_conn *c;
1123         __u8 type = INVALID_LINK;
1124
1125         rcu_read_lock();
1126
1127         list_for_each_entry_rcu(c, &h->list, list) {
1128                 if (c->handle == handle) {
1129                         type = c->type;
1130                         break;
1131                 }
1132         }
1133
1134         rcu_read_unlock();
1135
1136         return type;
1137 }
1138
1139 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev,
1140                                                         bdaddr_t *ba, __u8 bis)
1141 {
1142         struct hci_conn_hash *h = &hdev->conn_hash;
1143         struct hci_conn  *c;
1144
1145         rcu_read_lock();
1146
1147         list_for_each_entry_rcu(c, &h->list, list) {
1148                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK)
1149                         continue;
1150
1151                 if (c->iso_qos.bcast.bis == bis) {
1152                         rcu_read_unlock();
1153                         return c;
1154                 }
1155         }
1156         rcu_read_unlock();
1157
1158         return NULL;
1159 }
1160
1161 static inline struct hci_conn *
1162 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev,
1163                                  bdaddr_t *ba,
1164                                  __u8 big, __u8 bis)
1165 {
1166         struct hci_conn_hash *h = &hdev->conn_hash;
1167         struct hci_conn  *c;
1168
1169         rcu_read_lock();
1170
1171         list_for_each_entry_rcu(c, &h->list, list) {
1172                 if (bacmp(&c->dst, ba) || c->type != ISO_LINK ||
1173                         !test_bit(HCI_CONN_PER_ADV, &c->flags))
1174                         continue;
1175
1176                 if (c->iso_qos.bcast.big == big &&
1177                     c->iso_qos.bcast.bis == bis) {
1178                         rcu_read_unlock();
1179                         return c;
1180                 }
1181         }
1182         rcu_read_unlock();
1183
1184         return NULL;
1185 }
1186
1187 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1188                                                                 __u16 handle)
1189 {
1190         struct hci_conn_hash *h = &hdev->conn_hash;
1191         struct hci_conn  *c;
1192
1193         rcu_read_lock();
1194
1195         list_for_each_entry_rcu(c, &h->list, list) {
1196                 if (c->handle == handle) {
1197                         rcu_read_unlock();
1198                         return c;
1199                 }
1200         }
1201         rcu_read_unlock();
1202
1203         return NULL;
1204 }
1205
1206 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1207                                                         __u8 type, bdaddr_t *ba)
1208 {
1209         struct hci_conn_hash *h = &hdev->conn_hash;
1210         struct hci_conn  *c;
1211
1212         rcu_read_lock();
1213
1214         list_for_each_entry_rcu(c, &h->list, list) {
1215                 if (c->type == type && !bacmp(&c->dst, ba)) {
1216                         rcu_read_unlock();
1217                         return c;
1218                 }
1219         }
1220
1221         rcu_read_unlock();
1222
1223         return NULL;
1224 }
1225
1226 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1227                                                        bdaddr_t *ba,
1228                                                        __u8 ba_type)
1229 {
1230         struct hci_conn_hash *h = &hdev->conn_hash;
1231         struct hci_conn  *c;
1232
1233         rcu_read_lock();
1234
1235         list_for_each_entry_rcu(c, &h->list, list) {
1236                 if (c->type != LE_LINK)
1237                        continue;
1238
1239                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1240                         rcu_read_unlock();
1241                         return c;
1242                 }
1243         }
1244
1245         rcu_read_unlock();
1246
1247         return NULL;
1248 }
1249
1250 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
1251                                                         bdaddr_t *ba,
1252                                                         __u8 ba_type,
1253                                                         __u8 cig,
1254                                                         __u8 id)
1255 {
1256         struct hci_conn_hash *h = &hdev->conn_hash;
1257         struct hci_conn  *c;
1258
1259         rcu_read_lock();
1260
1261         list_for_each_entry_rcu(c, &h->list, list) {
1262                 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1263                         continue;
1264
1265                 /* Match CIG ID if set */
1266                 if (cig != c->iso_qos.ucast.cig)
1267                         continue;
1268
1269                 /* Match CIS ID if set */
1270                 if (id != c->iso_qos.ucast.cis)
1271                         continue;
1272
1273                 /* Match destination address if set */
1274                 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
1275                         rcu_read_unlock();
1276                         return c;
1277                 }
1278         }
1279
1280         rcu_read_unlock();
1281
1282         return NULL;
1283 }
1284
1285 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev,
1286                                                         __u8 handle)
1287 {
1288         struct hci_conn_hash *h = &hdev->conn_hash;
1289         struct hci_conn  *c;
1290
1291         rcu_read_lock();
1292
1293         list_for_each_entry_rcu(c, &h->list, list) {
1294                 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY))
1295                         continue;
1296
1297                 if (handle == c->iso_qos.ucast.cig) {
1298                         rcu_read_unlock();
1299                         return c;
1300                 }
1301         }
1302
1303         rcu_read_unlock();
1304
1305         return NULL;
1306 }
1307
1308 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev,
1309                                                         __u8 handle)
1310 {
1311         struct hci_conn_hash *h = &hdev->conn_hash;
1312         struct hci_conn  *c;
1313
1314         rcu_read_lock();
1315
1316         list_for_each_entry_rcu(c, &h->list, list) {
1317                 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK)
1318                         continue;
1319
1320                 if (handle == c->iso_qos.bcast.big) {
1321                         rcu_read_unlock();
1322                         return c;
1323                 }
1324         }
1325
1326         rcu_read_unlock();
1327
1328         return NULL;
1329 }
1330
1331 static inline struct hci_conn *hci_conn_hash_lookup_big_any_dst(struct hci_dev *hdev,
1332                                                         __u8 handle)
1333 {
1334         struct hci_conn_hash *h = &hdev->conn_hash;
1335         struct hci_conn  *c;
1336
1337         rcu_read_lock();
1338
1339         list_for_each_entry_rcu(c, &h->list, list) {
1340                 if (c->type != ISO_LINK)
1341                         continue;
1342
1343                 if (handle != BT_ISO_QOS_BIG_UNSET && handle == c->iso_qos.bcast.big) {
1344                         rcu_read_unlock();
1345                         return c;
1346                 }
1347         }
1348
1349         rcu_read_unlock();
1350
1351         return NULL;
1352 }
1353
1354 static inline struct hci_conn *
1355 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big)
1356 {
1357         struct hci_conn_hash *h = &hdev->conn_hash;
1358         struct hci_conn  *c;
1359
1360         rcu_read_lock();
1361
1362         list_for_each_entry_rcu(c, &h->list, list) {
1363                 if (c->type != ISO_LINK ||
1364                         !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1365                         continue;
1366
1367                 if (c->iso_qos.bcast.big == big) {
1368                         rcu_read_unlock();
1369                         return c;
1370                 }
1371         }
1372         rcu_read_unlock();
1373
1374         return NULL;
1375 }
1376
1377 static inline struct hci_conn *
1378 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle)
1379 {
1380         struct hci_conn_hash *h = &hdev->conn_hash;
1381         struct hci_conn  *c;
1382
1383         rcu_read_lock();
1384
1385         list_for_each_entry_rcu(c, &h->list, list) {
1386                 if (c->type != ISO_LINK ||
1387                         !test_bit(HCI_CONN_PA_SYNC, &c->flags))
1388                         continue;
1389
1390                 if (c->sync_handle == sync_handle) {
1391                         rcu_read_unlock();
1392                         return c;
1393                 }
1394         }
1395         rcu_read_unlock();
1396
1397         return NULL;
1398 }
1399
1400 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1401                                                         __u8 type, __u16 state)
1402 {
1403         struct hci_conn_hash *h = &hdev->conn_hash;
1404         struct hci_conn  *c;
1405
1406         rcu_read_lock();
1407
1408         list_for_each_entry_rcu(c, &h->list, list) {
1409                 if (c->type == type && c->state == state) {
1410                         rcu_read_unlock();
1411                         return c;
1412                 }
1413         }
1414
1415         rcu_read_unlock();
1416
1417         return NULL;
1418 }
1419
1420 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data);
1421 static inline void hci_conn_hash_list_state(struct hci_dev *hdev,
1422                                             hci_conn_func_t func, __u8 type,
1423                                             __u16 state, void *data)
1424 {
1425         struct hci_conn_hash *h = &hdev->conn_hash;
1426         struct hci_conn  *c;
1427
1428         if (!func)
1429                 return;
1430
1431         rcu_read_lock();
1432
1433         list_for_each_entry_rcu(c, &h->list, list) {
1434                 if (c->type == type && c->state == state)
1435                         func(c, data);
1436         }
1437
1438         rcu_read_unlock();
1439 }
1440
1441 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1442 {
1443         struct hci_conn_hash *h = &hdev->conn_hash;
1444         struct hci_conn  *c;
1445
1446         rcu_read_lock();
1447
1448         list_for_each_entry_rcu(c, &h->list, list) {
1449                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1450                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1451                         rcu_read_unlock();
1452                         return c;
1453                 }
1454         }
1455
1456         rcu_read_unlock();
1457
1458         return NULL;
1459 }
1460
1461 /* Returns true if an le connection is in the scanning state */
1462 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev)
1463 {
1464         struct hci_conn_hash *h = &hdev->conn_hash;
1465         struct hci_conn  *c;
1466
1467         rcu_read_lock();
1468
1469         list_for_each_entry_rcu(c, &h->list, list) {
1470                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1471                     test_bit(HCI_CONN_SCANNING, &c->flags)) {
1472                         rcu_read_unlock();
1473                         return true;
1474                 }
1475         }
1476
1477         rcu_read_unlock();
1478
1479         return false;
1480 }
1481
1482 #ifdef TIZEN_BT
1483 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1484                                         __u8 type, bdaddr_t *ba, bool value)
1485 {
1486         struct hci_conn_hash *h = &hdev->conn_hash;
1487         struct hci_conn  *c;
1488         __u8 conn_type;
1489
1490         if (type == 0x01)
1491                 conn_type = LE_LINK;
1492         else
1493                 conn_type = ACL_LINK;
1494
1495         rcu_read_lock();
1496
1497         list_for_each_entry_rcu(c, &h->list, list) {
1498                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1499                         c->rssi_monitored = value;
1500                         rcu_read_unlock();
1501                         return true;
1502                 }
1503         }
1504
1505         rcu_read_unlock();
1506         return false;
1507 }
1508
1509 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1510                                         __u8 type)
1511 {
1512         struct hci_conn_hash *h = &hdev->conn_hash;
1513         struct hci_conn  *c;
1514         __u8 conn_type;
1515
1516         if (type == 0x01)
1517                 conn_type = LE_LINK;
1518         else
1519                 conn_type = ACL_LINK;
1520
1521         rcu_read_lock();
1522         list_for_each_entry_rcu(c, &h->list, list) {
1523                 if (c->type == conn_type)
1524                         c->rssi_monitored = false;
1525 }
1526         rcu_read_unlock();
1527 }
1528
1529 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1530 {
1531         struct hci_conn_hash *h = &hdev->conn_hash;
1532         struct hci_conn  *c;
1533         int count = 0;
1534
1535         rcu_read_lock();
1536         list_for_each_entry_rcu(c, &h->list, list) {
1537                 if (c->rssi_monitored == true)
1538                         ++count;
1539         }
1540         rcu_read_unlock();
1541
1542         return count;
1543 }
1544
1545 int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout);
1546 bool hci_le_discovery_active(struct hci_dev *hdev);
1547 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1548
1549 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
1550 {
1551         struct hci_conn_hash *h = &hdev->conn_hash;
1552         struct hci_conn  *c;
1553
1554         rcu_read_lock();
1555         list_for_each_entry_rcu(c, &h->list, list) {
1556                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
1557                         rcu_read_unlock();
1558                         return c;
1559                 }
1560         }
1561         rcu_read_unlock();
1562
1563         return NULL;
1564 }
1565 #endif
1566
1567 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1568 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1569 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1570 bool hci_iso_setup_path(struct hci_conn *conn);
1571 int hci_le_create_cis_pending(struct hci_dev *hdev);
1572 int hci_conn_check_create_cis(struct hci_conn *conn);
1573
1574 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1575                               u8 role, u16 handle);
1576 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type,
1577                                     bdaddr_t *dst, u8 role);
1578 void hci_conn_del(struct hci_conn *conn);
1579 void hci_conn_hash_flush(struct hci_dev *hdev);
1580 void hci_conn_check_pending(struct hci_dev *hdev);
1581
1582 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1583 void hci_chan_del(struct hci_chan *chan);
1584 void hci_chan_list_flush(struct hci_conn *conn);
1585 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1586
1587 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1588                                      u8 dst_type, u8 sec_level,
1589                                      u16 conn_timeout,
1590                                      enum conn_reasons conn_reason);
1591 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1592                                 u8 dst_type, bool dst_resolved, u8 sec_level,
1593                                 u16 conn_timeout, u8 role);
1594 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1595                                  u8 sec_level, u8 auth_type,
1596                                  enum conn_reasons conn_reason);
1597 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1598                                  __u16 setting, struct bt_codec *codec);
1599 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst,
1600                               __u8 dst_type, struct bt_iso_qos *qos);
1601 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst,
1602                               struct bt_iso_qos *qos,
1603                               __u8 base_len, __u8 *base);
1604 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst,
1605                                  __u8 dst_type, struct bt_iso_qos *qos);
1606 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst,
1607                                  __u8 dst_type, struct bt_iso_qos *qos,
1608                                  __u8 data_len, __u8 *data);
1609 int hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, __u8 dst_type,
1610                        __u8 sid, struct bt_iso_qos *qos);
1611 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon,
1612                            struct bt_iso_qos *qos,
1613                            __u16 sync_handle, __u8 num_bis, __u8 bis[]);
1614 int hci_conn_check_link_mode(struct hci_conn *conn);
1615 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1616 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1617                       bool initiator);
1618 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1619
1620 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1621
1622 void hci_conn_failed(struct hci_conn *conn, u8 status);
1623 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle);
1624
1625 /*
1626  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1627  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1628  * working or anything else. They just guarantee that the object is available
1629  * and can be dereferenced. So you can use its locks, local variables and any
1630  * other constant data.
1631  * Before accessing runtime data, you _must_ lock the object and then check that
1632  * it is still running. As soon as you release the locks, the connection might
1633  * get dropped, though.
1634  *
1635  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1636  * how long the underlying connection is held. So every channel that runs on the
1637  * hci_conn object calls this to prevent the connection from disappearing. As
1638  * long as you hold a device, you must also guarantee that you have a valid
1639  * reference to the device via hci_conn_get() (or the initial reference from
1640  * hci_conn_add()).
1641  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1642  * break because nobody cares for that. But this means, we cannot use
1643  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1644  */
1645
1646 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1647 {
1648         get_device(&conn->dev);
1649         return conn;
1650 }
1651
1652 static inline void hci_conn_put(struct hci_conn *conn)
1653 {
1654         put_device(&conn->dev);
1655 }
1656
1657 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn)
1658 {
1659         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1660
1661         atomic_inc(&conn->refcnt);
1662         cancel_delayed_work(&conn->disc_work);
1663
1664         return conn;
1665 }
1666
1667 static inline void hci_conn_drop(struct hci_conn *conn)
1668 {
1669         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1670
1671         if (atomic_dec_and_test(&conn->refcnt)) {
1672                 unsigned long timeo;
1673
1674                 switch (conn->type) {
1675                 case ACL_LINK:
1676                 case LE_LINK:
1677                         cancel_delayed_work(&conn->idle_work);
1678                         if (conn->state == BT_CONNECTED) {
1679                                 timeo = conn->disc_timeout;
1680                                 if (!conn->out)
1681                                         timeo *= 2;
1682                         } else {
1683                                 timeo = 0;
1684                         }
1685                         break;
1686
1687                 case AMP_LINK:
1688                         timeo = conn->disc_timeout;
1689                         break;
1690
1691                 default:
1692                         timeo = 0;
1693                         break;
1694                 }
1695
1696                 cancel_delayed_work(&conn->disc_work);
1697                 queue_delayed_work(conn->hdev->workqueue,
1698                                    &conn->disc_work, timeo);
1699         }
1700 }
1701
1702 /* ----- HCI Devices ----- */
1703 static inline void hci_dev_put(struct hci_dev *d)
1704 {
1705         BT_DBG("%s orig refcnt %d", d->name,
1706                kref_read(&d->dev.kobj.kref));
1707
1708         put_device(&d->dev);
1709 }
1710
1711 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1712 {
1713         BT_DBG("%s orig refcnt %d", d->name,
1714                kref_read(&d->dev.kobj.kref));
1715
1716         get_device(&d->dev);
1717         return d;
1718 }
1719
1720 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1721 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1722
1723 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1724 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1725
1726 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1727 {
1728         return dev_get_drvdata(&hdev->dev);
1729 }
1730
1731 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1732 {
1733         dev_set_drvdata(&hdev->dev, data);
1734 }
1735
1736 static inline void *hci_get_priv(struct hci_dev *hdev)
1737 {
1738         return (char *)hdev + sizeof(*hdev);
1739 }
1740
1741 struct hci_dev *hci_dev_get(int index);
1742 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1743
1744 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1745
1746 static inline struct hci_dev *hci_alloc_dev(void)
1747 {
1748         return hci_alloc_dev_priv(0);
1749 }
1750
1751 void hci_free_dev(struct hci_dev *hdev);
1752 int hci_register_dev(struct hci_dev *hdev);
1753 void hci_unregister_dev(struct hci_dev *hdev);
1754 void hci_release_dev(struct hci_dev *hdev);
1755 int hci_register_suspend_notifier(struct hci_dev *hdev);
1756 int hci_unregister_suspend_notifier(struct hci_dev *hdev);
1757 int hci_suspend_dev(struct hci_dev *hdev);
1758 int hci_resume_dev(struct hci_dev *hdev);
1759 int hci_reset_dev(struct hci_dev *hdev);
1760 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1761 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1762 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1763 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1764
1765 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1766 {
1767 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1768         hdev->msft_opcode = opcode;
1769 #endif
1770 }
1771
1772 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1773 {
1774 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1775         hdev->aosp_capable = true;
1776 #endif
1777 }
1778
1779 static inline void hci_devcd_setup(struct hci_dev *hdev)
1780 {
1781 #ifdef CONFIG_DEV_COREDUMP
1782         INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx);
1783         INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout);
1784         skb_queue_head_init(&hdev->dump.dump_q);
1785 #endif
1786 }
1787
1788 int hci_dev_open(__u16 dev);
1789 int hci_dev_close(__u16 dev);
1790 int hci_dev_do_close(struct hci_dev *hdev);
1791 int hci_dev_reset(__u16 dev);
1792 int hci_dev_reset_stat(__u16 dev);
1793 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1794 int hci_get_dev_list(void __user *arg);
1795 int hci_get_dev_info(void __user *arg);
1796 int hci_get_conn_list(void __user *arg);
1797 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1798 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1799 #ifdef TIZEN_BT
1800 u32 get_link_mode(struct hci_conn *conn);
1801 #endif
1802 int hci_inquiry(void __user *arg);
1803
1804 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1805                                            bdaddr_t *bdaddr, u8 type);
1806 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1807                                     struct list_head *list, bdaddr_t *bdaddr,
1808                                     u8 type);
1809 struct bdaddr_list_with_flags *
1810 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1811                                   u8 type);
1812 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1813 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1814                                  u8 type, u8 *peer_irk, u8 *local_irk);
1815 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1816                                    u8 type, u32 flags);
1817 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1818 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1819                                  u8 type);
1820 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1821                                    u8 type);
1822 void hci_bdaddr_list_clear(struct list_head *list);
1823
1824 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1825                                                bdaddr_t *addr, u8 addr_type);
1826 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1827                                             bdaddr_t *addr, u8 addr_type);
1828 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1829 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1830 void hci_conn_params_free(struct hci_conn_params *param);
1831
1832 void hci_pend_le_list_del_init(struct hci_conn_params *param);
1833 void hci_pend_le_list_add(struct hci_conn_params *param,
1834                           struct list_head *list);
1835 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1836                                                   bdaddr_t *addr,
1837                                                   u8 addr_type);
1838
1839 void hci_uuids_clear(struct hci_dev *hdev);
1840
1841 void hci_link_keys_clear(struct hci_dev *hdev);
1842 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1843 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1844                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1845                                   u8 pin_len, bool *persistent);
1846 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1847                             u8 addr_type, u8 type, u8 authenticated,
1848                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1849 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1850                              u8 addr_type, u8 role);
1851 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1852 void hci_smp_ltks_clear(struct hci_dev *hdev);
1853 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1854
1855 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1856 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1857                                      u8 addr_type);
1858 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1859                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1860 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1861 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1862 void hci_blocked_keys_clear(struct hci_dev *hdev);
1863 void hci_smp_irks_clear(struct hci_dev *hdev);
1864
1865 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1866
1867 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1868 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1869                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1870 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1871                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1872                             u8 *hash256, u8 *rand256);
1873 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1874                                u8 bdaddr_type);
1875
1876 void hci_adv_instances_clear(struct hci_dev *hdev);
1877 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1878 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1879 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance,
1880                                       u32 flags, u16 adv_data_len, u8 *adv_data,
1881                                       u16 scan_rsp_len, u8 *scan_rsp_data,
1882                                       u16 timeout, u16 duration, s8 tx_power,
1883                                       u32 min_interval, u32 max_interval,
1884                                       u8 mesh_handle);
1885 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance,
1886                                       u32 flags, u8 data_len, u8 *data,
1887                                       u32 min_interval, u32 max_interval);
1888 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1889                          u16 adv_data_len, u8 *adv_data,
1890                          u16 scan_rsp_len, u8 *scan_rsp_data);
1891 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1892 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1893 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance);
1894 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance);
1895
1896 void hci_adv_monitors_clear(struct hci_dev *hdev);
1897 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1898 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1899 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle);
1900 int hci_remove_all_adv_monitor(struct hci_dev *hdev);
1901 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1902 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1903
1904 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1905
1906 void hci_init_sysfs(struct hci_dev *hdev);
1907 void hci_conn_init_sysfs(struct hci_conn *conn);
1908 void hci_conn_add_sysfs(struct hci_conn *conn);
1909 void hci_conn_del_sysfs(struct hci_conn *conn);
1910
1911 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1912 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent)
1913
1914 /* ----- LMP capabilities ----- */
1915 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1916 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1917 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1918 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1919 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1920 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1921 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1922 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1923 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1924 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1925 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1926 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1927 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1928 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1929 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1930 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1931 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1932 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1933 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1934 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1935 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1936 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1937 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1938 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1939
1940 /* ----- Extended LMP capabilities ----- */
1941 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1942 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1943 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1944 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1945 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1946 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1947
1948 /* ----- Host capabilities ----- */
1949 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1950 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1951 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1952 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1953
1954 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1955                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1956 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1957                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1958 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1959                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1960 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1961                                 !adv->rpa_expired)
1962
1963 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1964                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1965
1966 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M))
1967
1968 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1969                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1970
1971 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \
1972                                !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \
1973                                          &(dev)->quirks))
1974
1975 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1976                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1977
1978 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1979
1980 /* Use LL Privacy based address resolution if supported */
1981 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \
1982                              hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY))
1983
1984 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \
1985                                    (hdev->commands[39] & 0x04))
1986
1987 /* Use enhanced synchronous connection if command is supported and its quirk
1988  * has not been set.
1989  */
1990 #define enhanced_sync_conn_capable(dev) \
1991         (((dev)->commands[29] & 0x08) && \
1992          !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks))
1993
1994 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1995 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1996                            ((dev)->commands[37] & 0x40) && \
1997                            !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks))
1998
1999 /* Use ext create connection if command is supported */
2000 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
2001
2002 /* Extended advertising support */
2003 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
2004
2005 /* Maximum advertising length */
2006 #define max_adv_len(dev) \
2007         (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH)
2008
2009 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
2010  *
2011  * C24: Mandatory if the LE Controller supports Connection State and either
2012  * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
2013  */
2014 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
2015                                          ext_adv_capable(dev))
2016
2017 /* Periodic advertising support */
2018 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV))
2019
2020 /* CIS Master/Slave and BIS support */
2021 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev))
2022 #define cis_capable(dev) \
2023         (cis_central_capable(dev) || cis_peripheral_capable(dev))
2024 #define cis_central_capable(dev) \
2025         ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL)
2026 #define cis_peripheral_capable(dev) \
2027         ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL)
2028 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER)
2029 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER)
2030
2031 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \
2032         (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks)))
2033
2034 /* ----- HCI protocols ----- */
2035 #define HCI_PROTO_DEFER             0x01
2036
2037 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
2038                                         __u8 type, __u8 *flags)
2039 {
2040         switch (type) {
2041         case ACL_LINK:
2042                 return l2cap_connect_ind(hdev, bdaddr);
2043
2044         case SCO_LINK:
2045         case ESCO_LINK:
2046                 return sco_connect_ind(hdev, bdaddr, flags);
2047
2048         case ISO_LINK:
2049                 return iso_connect_ind(hdev, bdaddr, flags);
2050
2051         default:
2052                 BT_ERR("unknown link type %d", type);
2053                 return -EINVAL;
2054         }
2055 }
2056
2057 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
2058 {
2059         if (conn->type != ACL_LINK && conn->type != LE_LINK)
2060                 return HCI_ERROR_REMOTE_USER_TERM;
2061
2062         return l2cap_disconn_ind(conn);
2063 }
2064
2065 /* ----- HCI callbacks ----- */
2066 struct hci_cb {
2067         struct list_head list;
2068
2069         char *name;
2070
2071         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
2072         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
2073         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
2074                                                                 __u8 encrypt);
2075         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
2076         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
2077 };
2078
2079 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
2080 {
2081         struct hci_cb *cb;
2082
2083         mutex_lock(&hci_cb_list_lock);
2084         list_for_each_entry(cb, &hci_cb_list, list) {
2085                 if (cb->connect_cfm)
2086                         cb->connect_cfm(conn, status);
2087         }
2088         mutex_unlock(&hci_cb_list_lock);
2089
2090         if (conn->connect_cfm_cb)
2091                 conn->connect_cfm_cb(conn, status);
2092 }
2093
2094 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
2095 {
2096         struct hci_cb *cb;
2097
2098         mutex_lock(&hci_cb_list_lock);
2099         list_for_each_entry(cb, &hci_cb_list, list) {
2100                 if (cb->disconn_cfm)
2101                         cb->disconn_cfm(conn, reason);
2102         }
2103         mutex_unlock(&hci_cb_list_lock);
2104
2105         if (conn->disconn_cfm_cb)
2106                 conn->disconn_cfm_cb(conn, reason);
2107 }
2108
2109 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
2110 {
2111         struct hci_cb *cb;
2112         __u8 encrypt;
2113
2114         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
2115                 return;
2116
2117         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
2118
2119         mutex_lock(&hci_cb_list_lock);
2120         list_for_each_entry(cb, &hci_cb_list, list) {
2121                 if (cb->security_cfm)
2122                         cb->security_cfm(conn, status, encrypt);
2123         }
2124         mutex_unlock(&hci_cb_list_lock);
2125
2126         if (conn->security_cfm_cb)
2127                 conn->security_cfm_cb(conn, status);
2128 }
2129
2130 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
2131 {
2132         struct hci_cb *cb;
2133         __u8 encrypt;
2134
2135         if (conn->state == BT_CONFIG) {
2136                 if (!status)
2137                         conn->state = BT_CONNECTED;
2138
2139                 hci_connect_cfm(conn, status);
2140                 hci_conn_drop(conn);
2141                 return;
2142         }
2143
2144         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
2145                 encrypt = 0x00;
2146         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
2147                 encrypt = 0x02;
2148         else
2149                 encrypt = 0x01;
2150
2151         if (!status) {
2152                 if (conn->sec_level == BT_SECURITY_SDP)
2153                         conn->sec_level = BT_SECURITY_LOW;
2154
2155                 if (conn->pending_sec_level > conn->sec_level)
2156                         conn->sec_level = conn->pending_sec_level;
2157         }
2158
2159         mutex_lock(&hci_cb_list_lock);
2160         list_for_each_entry(cb, &hci_cb_list, list) {
2161                 if (cb->security_cfm)
2162                         cb->security_cfm(conn, status, encrypt);
2163         }
2164         mutex_unlock(&hci_cb_list_lock);
2165
2166         if (conn->security_cfm_cb)
2167                 conn->security_cfm_cb(conn, status);
2168 }
2169
2170 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
2171 {
2172         struct hci_cb *cb;
2173
2174         mutex_lock(&hci_cb_list_lock);
2175         list_for_each_entry(cb, &hci_cb_list, list) {
2176                 if (cb->key_change_cfm)
2177                         cb->key_change_cfm(conn, status);
2178         }
2179         mutex_unlock(&hci_cb_list_lock);
2180 }
2181
2182 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
2183                                                                 __u8 role)
2184 {
2185         struct hci_cb *cb;
2186
2187         mutex_lock(&hci_cb_list_lock);
2188         list_for_each_entry(cb, &hci_cb_list, list) {
2189                 if (cb->role_switch_cfm)
2190                         cb->role_switch_cfm(conn, status, role);
2191         }
2192         mutex_unlock(&hci_cb_list_lock);
2193 }
2194
2195 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
2196 {
2197         if (addr_type != ADDR_LE_DEV_RANDOM)
2198                 return false;
2199
2200         if ((bdaddr->b[5] & 0xc0) == 0x40)
2201                return true;
2202
2203         return false;
2204 }
2205
2206 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
2207 {
2208         if (addr_type == ADDR_LE_DEV_PUBLIC)
2209                 return true;
2210
2211         /* Check for Random Static address type */
2212         if ((addr->b[5] & 0xc0) == 0xc0)
2213                 return true;
2214
2215         return false;
2216 }
2217
2218 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
2219                                           bdaddr_t *bdaddr, u8 addr_type)
2220 {
2221         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
2222                 return NULL;
2223
2224         return hci_find_irk_by_rpa(hdev, bdaddr);
2225 }
2226
2227 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
2228                                         u16 to_multiplier)
2229 {
2230         u16 max_latency;
2231
2232         if (min > max || min < 6 || max > 3200)
2233                 return -EINVAL;
2234
2235         if (to_multiplier < 10 || to_multiplier > 3200)
2236                 return -EINVAL;
2237
2238         if (max >= to_multiplier * 8)
2239                 return -EINVAL;
2240
2241         max_latency = (to_multiplier * 4 / max) - 1;
2242         if (latency > 499 || latency > max_latency)
2243                 return -EINVAL;
2244
2245         return 0;
2246 }
2247
2248 int hci_register_cb(struct hci_cb *hcb);
2249 int hci_unregister_cb(struct hci_cb *hcb);
2250
2251 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
2252                    const void *param);
2253
2254 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
2255                  const void *param);
2256 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
2257 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
2258 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb);
2259
2260 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
2261 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event);
2262
2263 u32 hci_conn_get_phy(struct hci_conn *conn);
2264
2265 /* ----- HCI Sockets ----- */
2266 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
2267 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
2268                          int flag, struct sock *skip_sk);
2269 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
2270 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
2271                                  void *data, u16 data_len, ktime_t tstamp,
2272                                  int flag, struct sock *skip_sk);
2273
2274 void hci_sock_dev_event(struct hci_dev *hdev, int event);
2275
2276 #define HCI_MGMT_VAR_LEN        BIT(0)
2277 #define HCI_MGMT_NO_HDEV        BIT(1)
2278 #define HCI_MGMT_UNTRUSTED      BIT(2)
2279 #define HCI_MGMT_UNCONFIGURED   BIT(3)
2280 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
2281
2282 struct hci_mgmt_handler {
2283         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2284                      u16 data_len);
2285         size_t data_len;
2286         unsigned long flags;
2287 };
2288
2289 struct hci_mgmt_chan {
2290         struct list_head list;
2291         unsigned short channel;
2292         size_t handler_count;
2293         const struct hci_mgmt_handler *handlers;
2294 #ifdef TIZEN_BT
2295         size_t tizen_handler_count;
2296         const struct hci_mgmt_handler *tizen_handlers;
2297 #endif
2298         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
2299 };
2300
2301 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
2302 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
2303
2304 /* Management interface */
2305 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
2306 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
2307                                          BIT(BDADDR_LE_RANDOM))
2308 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
2309                                          BIT(BDADDR_LE_PUBLIC) | \
2310                                          BIT(BDADDR_LE_RANDOM))
2311
2312 /* These LE scan and inquiry parameters were chosen according to LE General
2313  * Discovery Procedure specification.
2314  */
2315 #define DISCOV_LE_SCAN_WIN              0x12
2316 #define DISCOV_LE_SCAN_INT              0x12
2317 #define DISCOV_LE_TIMEOUT               10240   /* msec */
2318 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
2319 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
2320 #define DISCOV_BREDR_INQUIRY_LEN        0x08
2321 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
2322 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
2323 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
2324 #define DISCOV_LE_PER_ADV_INT_MIN       0x00A0  /* 200 msec */
2325 #define DISCOV_LE_PER_ADV_INT_MAX       0x00A0  /* 200 msec */
2326 #define DISCOV_LE_ADV_MESH_MIN          0x00A0  /* 100 msec */
2327 #define DISCOV_LE_ADV_MESH_MAX          0x00A0  /* 100 msec */
2328 #define INTERVAL_TO_MS(x)               (((x) * 10) / 0x10)
2329
2330 #define NAME_RESOLVE_DURATION           msecs_to_jiffies(10240) /* 10.24 sec */
2331
2332 void mgmt_fill_version_info(void *ver);
2333 int mgmt_new_settings(struct hci_dev *hdev);
2334 void mgmt_index_added(struct hci_dev *hdev);
2335 void mgmt_index_removed(struct hci_dev *hdev);
2336 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
2337 void mgmt_power_on(struct hci_dev *hdev, int err);
2338 void __mgmt_power_off(struct hci_dev *hdev);
2339 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2340                        bool persistent);
2341 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
2342                            u8 *name, u8 name_len);
2343 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
2344                               u8 link_type, u8 addr_type, u8 reason,
2345                               bool mgmt_connected);
2346 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2347                             u8 link_type, u8 addr_type, u8 status);
2348 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2349                          u8 addr_type, u8 status);
2350 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
2351 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2352                                   u8 status);
2353 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2354                                       u8 status);
2355 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2356                               u8 link_type, u8 addr_type, u32 value,
2357                               u8 confirm_hint);
2358 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2359                                      u8 link_type, u8 addr_type, u8 status);
2360 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2361                                          u8 link_type, u8 addr_type, u8 status);
2362 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
2363                               u8 link_type, u8 addr_type);
2364 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2365                                      u8 link_type, u8 addr_type, u8 status);
2366 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
2367                                          u8 link_type, u8 addr_type, u8 status);
2368 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
2369                              u8 link_type, u8 addr_type, u32 passkey,
2370                              u8 entered);
2371 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
2372 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
2373 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
2374                                     u8 status);
2375 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
2376 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
2377 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
2378 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2379                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
2380                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
2381                        u64 instant);
2382 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2383                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
2384 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
2385 void mgmt_suspending(struct hci_dev *hdev, u8 state);
2386 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
2387                    u8 addr_type);
2388 bool mgmt_powering_down(struct hci_dev *hdev);
2389 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
2390 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
2391 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
2392                    bool persistent);
2393 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
2394                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
2395                          u16 max_interval, u16 latency, u16 timeout);
2396 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
2397 bool mgmt_get_connectable(struct hci_dev *hdev);
2398 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
2399 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
2400                             u8 instance);
2401 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
2402                               u8 instance);
2403 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
2404 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
2405 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
2406                                   bdaddr_t *bdaddr, u8 addr_type);
2407
2408 #ifdef TIZEN_BT
2409 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
2410                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2411 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
2412                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
2413 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
2414                 void *data, u16 len);
2415 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
2416                 s8 alert_type, s8 rssi_dbm);
2417 void mgmt_raw_rssi_response(struct hci_dev *hdev,
2418                 struct hci_cc_rp_get_raw_rssi *rp, int success);
2419 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
2420 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
2421                 u8 name_len);
2422 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
2423 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
2424                 u8 dst_type, u16 conn_interval, u16 conn_latency,
2425                 u16 supervision_timeout);
2426 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2427                 u8 link_type, u8 addr_type, u8 status);
2428 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
2429 void mgmt_tx_timeout_error(struct hci_dev *hdev);
2430 /*  Pass adv type in the le device found */
2431 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2432                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
2433                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
2434 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
2435                 u8 state_change_reason, u16 connection_handle);
2436 void mgmt_6lowpan_conn_changed(struct hci_dev *hdev, char if_name[16],
2437                 bdaddr_t *bdaddr, u8 addr_type, bool connected);
2438 void mgmt_le_read_maximum_data_length_complete(struct hci_dev *hdev,
2439                 u8 status);
2440 void mgmt_le_write_host_suggested_data_length_complete(struct hci_dev *hdev,
2441                 u8 status);
2442 void mgmt_le_read_host_suggested_data_length_complete(struct hci_dev *hdev,
2443                 u8 status);
2444 void mgmt_le_data_length_change_complete(struct hci_dev *hdev,
2445                 bdaddr_t *bdaddr, u16 tx_octets, u16 tx_time,
2446                 u16 rx_octets, u16 rx_time);
2447 int hci_le_set_data_length(struct hci_conn *conn, u16 tx_octets, u16 tx_time);
2448 #endif
2449
2450 int hci_abort_conn(struct hci_conn *conn, u8 reason);
2451 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2452                       u16 to_multiplier);
2453 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2454                       __u8 ltk[16], __u8 key_size);
2455
2456 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2457                                u8 *bdaddr_type);
2458
2459 #define SCO_AIRMODE_MASK       0x0003
2460 #define SCO_AIRMODE_CVSD       0x0000
2461 #define SCO_AIRMODE_TRANSP     0x0003
2462
2463 #define LOCAL_CODEC_ACL_MASK    BIT(0)
2464 #define LOCAL_CODEC_SCO_MASK    BIT(1)
2465
2466 #define TRANSPORT_TYPE_MAX      0x04
2467
2468 #endif /* __HCI_CORE_H */