include/net/bluetooth/hci_core.h

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 #ifndef __HCI_CORE_H
  26 #define __HCI_CORE_H
  27
  28 #include <linux/idr.h>
  29 #include <linux/leds.h>
  30 #include <linux/rculist.h>
  31
  32 #include <net/bluetooth/hci.h>
  33 #include <net/bluetooth/hci_sock.h>
  34
  35 /* HCI priority */
  36 #define HCI_PRIO_MAX    7
  37
  38 /* HCI Core structures */
  39 struct inquiry_data {
  40         bdaddr_t        bdaddr;
  41         __u8            pscan_rep_mode;
  42         __u8            pscan_period_mode;
  43         __u8            pscan_mode;
  44         __u8            dev_class[3];
  45         __le16          clock_offset;
  46         __s8            rssi;
  47         __u8            ssp_mode;
  48 };
  49
  50 struct inquiry_entry {
  51         struct list_head        all;            /* inq_cache.all */
  52         struct list_head        list;           /* unknown or resolve */
  53         enum {
  54                 NAME_NOT_KNOWN,
  55                 NAME_NEEDED,
  56                 NAME_PENDING,
  57                 NAME_KNOWN,
  58         } name_state;
  59         __u32                   timestamp;
  60         struct inquiry_data     data;
  61 };
  62
  63 struct discovery_state {
  64         int                     type;
  65         enum {
  66                 DISCOVERY_STOPPED,
  67                 DISCOVERY_STARTING,
  68                 DISCOVERY_FINDING,
  69                 DISCOVERY_RESOLVING,
  70                 DISCOVERY_STOPPING,
  71         } state;
  72         struct list_head        all;    /* All devices found during inquiry */
  73         struct list_head        unknown;        /* Name state not known */
  74         struct list_head        resolve;        /* Name needs to be resolved */
  75         __u32                   timestamp;
  76         bdaddr_t                last_adv_addr;
  77         u8                      last_adv_addr_type;
  78         s8                      last_adv_rssi;
  79         u32                     last_adv_flags;
  80         u8                      last_adv_data[HCI_MAX_AD_LENGTH];
  81         u8                      last_adv_data_len;
  82         bool                    report_invalid_rssi;
  83         bool                    result_filtering;
  84         bool                    limited;
  85         s8                      rssi;
  86         u16                     uuid_count;
  87         u8                      (*uuids)[16];
  88         unsigned long           scan_start;
  89         unsigned long           scan_duration;
  90 };
  91
  92 #define SUSPEND_NOTIFIER_TIMEOUT        msecs_to_jiffies(2000) /* 2 seconds */
  93
  94 enum suspend_tasks {
  95         SUSPEND_PAUSE_DISCOVERY,
  96         SUSPEND_UNPAUSE_DISCOVERY,
  97
  98         SUSPEND_PAUSE_ADVERTISING,
  99         SUSPEND_UNPAUSE_ADVERTISING,
 100
 101         SUSPEND_SCAN_DISABLE,
 102         SUSPEND_SCAN_ENABLE,
 103         SUSPEND_DISCONNECTING,
 104
 105         SUSPEND_POWERING_DOWN,
 106
 107         SUSPEND_PREPARE_NOTIFIER,
 108
 109         SUSPEND_SET_ADV_FILTER,
 110         __SUSPEND_NUM_TASKS
 111 };
 112
 113 enum suspended_state {
 114         BT_RUNNING = 0,
 115         BT_SUSPEND_DISCONNECT,
 116         BT_SUSPEND_CONFIGURE_WAKE,
 117 };
 118
 119 struct hci_conn_hash {
 120         struct list_head list;
 121         unsigned int     acl_num;
 122         unsigned int     amp_num;
 123         unsigned int     sco_num;
 124         unsigned int     le_num;
 125         unsigned int     le_num_peripheral;
 126 };
 127
 128 struct bdaddr_list {
 129         struct list_head list;
 130         bdaddr_t bdaddr;
 131         u8 bdaddr_type;
 132 };
 133
 134 struct bdaddr_list_with_irk {
 135         struct list_head list;
 136         bdaddr_t bdaddr;
 137         u8 bdaddr_type;
 138         u8 peer_irk[16];
 139         u8 local_irk[16];
 140 };
 141
 142 struct bdaddr_list_with_flags {
 143         struct list_head list;
 144         bdaddr_t bdaddr;
 145         u8 bdaddr_type;
 146         u32 current_flags;
 147 };
 148
 149 enum hci_conn_flags {
 150         HCI_CONN_FLAG_REMOTE_WAKEUP,
 151         HCI_CONN_FLAG_MAX
 152 };
 153
 154 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
 155
 156 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
 157 static_assert(HCI_CONN_FLAG_MAX < 32);
 158
 159 struct bt_uuid {
 160         struct list_head list;
 161         u8 uuid[16];
 162         u8 size;
 163         u8 svc_hint;
 164 };
 165
 166 struct blocked_key {
 167         struct list_head list;
 168         struct rcu_head rcu;
 169         u8 type;
 170         u8 val[16];
 171 };
 172
 173 struct smp_csrk {
 174         bdaddr_t bdaddr;
 175         u8 bdaddr_type;
 176         u8 type;
 177         u8 val[16];
 178 };
 179
 180 struct smp_ltk {
 181         struct list_head list;
 182         struct rcu_head rcu;
 183         bdaddr_t bdaddr;
 184         u8 bdaddr_type;
 185         u8 authenticated;
 186         u8 type;
 187         u8 enc_size;
 188         __le16 ediv;
 189         __le64 rand;
 190         u8 val[16];
 191 };
 192
 193 struct smp_irk {
 194         struct list_head list;
 195         struct rcu_head rcu;
 196         bdaddr_t rpa;
 197         bdaddr_t bdaddr;
 198         u8 addr_type;
 199         u8 val[16];
 200 };
 201
 202 struct link_key {
 203         struct list_head list;
 204         struct rcu_head rcu;
 205         bdaddr_t bdaddr;
 206         u8 type;
 207         u8 val[HCI_LINK_KEY_SIZE];
 208         u8 pin_len;
 209 };
 210
 211 struct oob_data {
 212         struct list_head list;
 213         bdaddr_t bdaddr;
 214         u8 bdaddr_type;
 215         u8 present;
 216         u8 hash192[16];
 217         u8 rand192[16];
 218         u8 hash256[16];
 219         u8 rand256[16];
 220 };
 221
 222 struct adv_info {
 223         struct list_head list;
 224         bool enabled;
 225         bool pending;
 226         __u8    instance;
 227         __u32   flags;
 228         __u16   timeout;
 229         __u16   remaining_time;
 230         __u16   duration;
 231         __u16   adv_data_len;
 232         __u8    adv_data[HCI_MAX_EXT_AD_LENGTH];
 233         __u16   scan_rsp_len;
 234         __u8    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 235         __s8    tx_power;
 236         __u32   min_interval;
 237         __u32   max_interval;
 238         bdaddr_t        random_addr;
 239         bool            rpa_expired;
 240         struct delayed_work     rpa_expired_cb;
 241 };
 242
 243 #define HCI_MAX_ADV_INSTANCES           5
 244 #define HCI_DEFAULT_ADV_DURATION        2
 245
 246 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 247
 248 struct adv_pattern {
 249         struct list_head list;
 250         __u8 ad_type;
 251         __u8 offset;
 252         __u8 length;
 253         __u8 value[HCI_MAX_AD_LENGTH];
 254 };
 255
 256 struct adv_rssi_thresholds {
 257         __s8 low_threshold;
 258         __s8 high_threshold;
 259         __u16 low_threshold_timeout;
 260         __u16 high_threshold_timeout;
 261         __u8 sampling_period;
 262 };
 263
 264 struct adv_monitor {
 265         struct list_head patterns;
 266         struct adv_rssi_thresholds rssi;
 267         __u16           handle;
 268
 269         enum {
 270                 ADV_MONITOR_STATE_NOT_REGISTERED,
 271                 ADV_MONITOR_STATE_REGISTERED,
 272                 ADV_MONITOR_STATE_OFFLOADED
 273         } state;
 274 };
 275
 276 #define HCI_MIN_ADV_MONITOR_HANDLE              1
 277 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES         32
 278 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS        16
 279 #define HCI_ADV_MONITOR_EXT_NONE                1
 280 #define HCI_ADV_MONITOR_EXT_MSFT                2
 281
 282 #define HCI_MAX_SHORT_NAME_LENGTH       10
 283
 284 /* Min encryption key size to match with SMP */
 285 #define HCI_MIN_ENC_KEY_SIZE            7
 286
 287 /* Default LE RPA expiry time, 15 minutes */
 288 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 289
 290 /* Default min/max age of connection information (1s/3s) */
 291 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 292 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 293 /* Default authenticated payload timeout 30s */
 294 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 295
 296 struct amp_assoc {
 297         __u16   len;
 298         __u16   offset;
 299         __u16   rem_len;
 300         __u16   len_so_far;
 301         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 302 };
 303
 304 #define HCI_MAX_PAGES   3
 305
 306 #ifdef TIZEN_BT
 307 #define HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH    100
 308 #endif
 309
 310 struct hci_dev {
 311         struct list_head list;
 312         struct mutex    lock;
 313
 314         char            name[8];
 315         unsigned long   flags;
 316         __u16           id;
 317         __u8            bus;
 318         __u8            dev_type;
 319         bdaddr_t        bdaddr;
 320         bdaddr_t        setup_addr;
 321         bdaddr_t        public_addr;
 322         bdaddr_t        random_addr;
 323         bdaddr_t        static_addr;
 324         __u8            adv_addr_type;
 325         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 326         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 327         __u8            eir[HCI_MAX_EIR_LENGTH];
 328         __u16           appearance;
 329         __u8            dev_class[3];
 330         __u8            major_class;
 331         __u8            minor_class;
 332         __u8            max_page;
 333         __u8            features[HCI_MAX_PAGES][8];
 334         __u8            le_features[8];
 335         __u8            le_accept_list_size;
 336         __u8            le_resolv_list_size;
 337         __u8            le_num_of_adv_sets;
 338         __u8            le_states[8];
 339         __u8            commands[64];
 340         __u8            hci_ver;
 341         __u16           hci_rev;
 342         __u8            lmp_ver;
 343         __u16           manufacturer;
 344         __u16           lmp_subver;
 345         __u16           voice_setting;
 346         __u8            num_iac;
 347         __u8            stored_max_keys;
 348         __u8            stored_num_keys;
 349         __u8            io_capability;
 350         __s8            inq_tx_power;
 351         __u8            err_data_reporting;
 352         __u16           page_scan_interval;
 353         __u16           page_scan_window;
 354         __u8            page_scan_type;
 355         __u8            le_adv_channel_map;
 356         __u16           le_adv_min_interval;
 357         __u16           le_adv_max_interval;
 358         __u8            le_scan_type;
 359         __u16           le_scan_interval;
 360         __u16           le_scan_window;
 361         __u16           le_scan_int_suspend;
 362         __u16           le_scan_window_suspend;
 363         __u16           le_scan_int_discovery;
 364         __u16           le_scan_window_discovery;
 365         __u16           le_scan_int_adv_monitor;
 366         __u16           le_scan_window_adv_monitor;
 367         __u16           le_scan_int_connect;
 368         __u16           le_scan_window_connect;
 369         __u16           le_conn_min_interval;
 370         __u16           le_conn_max_interval;
 371         __u16           le_conn_latency;
 372         __u16           le_supv_timeout;
 373         __u16           le_def_tx_len;
 374         __u16           le_def_tx_time;
 375         __u16           le_max_tx_len;
 376         __u16           le_max_tx_time;
 377         __u16           le_max_rx_len;
 378         __u16           le_max_rx_time;
 379         __u8            le_max_key_size;
 380         __u8            le_min_key_size;
 381         __u16           discov_interleaved_timeout;
 382         __u16           conn_info_min_age;
 383         __u16           conn_info_max_age;
 384         __u16           auth_payload_timeout;
 385         __u8            min_enc_key_size;
 386         __u8            max_enc_key_size;
 387         __u8            pairing_opts;
 388         __u8            ssp_debug_mode;
 389         __u8            hw_error_code;
 390         __u32           clock;
 391         __u16           advmon_allowlist_duration;
 392         __u16           advmon_no_filter_duration;
 393         __u8            enable_advmon_interleave_scan;
 394
 395         __u16           devid_source;
 396         __u16           devid_vendor;
 397         __u16           devid_product;
 398         __u16           devid_version;
 399
 400         __u8            def_page_scan_type;
 401         __u16           def_page_scan_int;
 402         __u16           def_page_scan_window;
 403         __u8            def_inq_scan_type;
 404         __u16           def_inq_scan_int;
 405         __u16           def_inq_scan_window;
 406         __u16           def_br_lsto;
 407         __u16           def_page_timeout;
 408         __u16           def_multi_adv_rotation_duration;
 409         __u16           def_le_autoconnect_timeout;
 410         __s8            min_le_tx_power;
 411         __s8            max_le_tx_power;
 412
 413         __u16           pkt_type;
 414         __u16           esco_type;
 415         __u16           link_policy;
 416         __u16           link_mode;
 417
 418         __u32           idle_timeout;
 419         __u16           sniff_min_interval;
 420         __u16           sniff_max_interval;
 421
 422         __u8            amp_status;
 423         __u32           amp_total_bw;
 424         __u32           amp_max_bw;
 425         __u32           amp_min_latency;
 426         __u32           amp_max_pdu;
 427         __u8            amp_type;
 428         __u16           amp_pal_cap;
 429         __u16           amp_assoc_size;
 430         __u32           amp_max_flush_to;
 431         __u32           amp_be_flush_to;
 432
 433         struct amp_assoc        loc_assoc;
 434
 435         __u8            flow_ctl_mode;
 436
 437         unsigned int    auto_accept_delay;
 438
 439         unsigned long   quirks;
 440
 441         atomic_t        cmd_cnt;
 442         unsigned int    acl_cnt;
 443         unsigned int    sco_cnt;
 444         unsigned int    le_cnt;
 445
 446         unsigned int    acl_mtu;
 447         unsigned int    sco_mtu;
 448         unsigned int    le_mtu;
 449         unsigned int    acl_pkts;
 450         unsigned int    sco_pkts;
 451         unsigned int    le_pkts;
 452
 453         __u16           block_len;
 454         __u16           block_mtu;
 455         __u16           num_blocks;
 456         __u16           block_cnt;
 457
 458         unsigned long   acl_last_tx;
 459         unsigned long   sco_last_tx;
 460         unsigned long   le_last_tx;
 461
 462         __u8            le_tx_def_phys;
 463         __u8            le_rx_def_phys;
 464
 465         struct workqueue_struct *workqueue;
 466         struct workqueue_struct *req_workqueue;
 467
 468         struct work_struct      power_on;
 469         struct delayed_work     power_off;
 470         struct work_struct      error_reset;
 471
 472         __u16                   discov_timeout;
 473         struct delayed_work     discov_off;
 474
 475         struct delayed_work     service_cache;
 476
 477         struct delayed_work     cmd_timer;
 478         struct delayed_work     ncmd_timer;
 479
 480         struct work_struct      rx_work;
 481         struct work_struct      cmd_work;
 482         struct work_struct      tx_work;
 483
 484         struct work_struct      discov_update;
 485         struct work_struct      bg_scan_update;
 486         struct work_struct      scan_update;
 487         struct work_struct      connectable_update;
 488         struct work_struct      discoverable_update;
 489         struct delayed_work     le_scan_disable;
 490         struct delayed_work     le_scan_restart;
 491
 492         struct sk_buff_head     rx_q;
 493         struct sk_buff_head     raw_q;
 494         struct sk_buff_head     cmd_q;
 495
 496         struct sk_buff          *sent_cmd;
 497
 498         struct mutex            req_lock;
 499         wait_queue_head_t       req_wait_q;
 500         __u32                   req_status;
 501         __u32                   req_result;
 502         struct sk_buff          *req_skb;
 503
 504         void                    *smp_data;
 505         void                    *smp_bredr_data;
 506
 507         struct discovery_state  discovery;
 508
 509         int                     discovery_old_state;
 510         bool                    discovery_paused;
 511         int                     advertising_old_state;
 512         bool                    advertising_paused;
 513
 514         struct notifier_block   suspend_notifier;
 515         struct work_struct      suspend_prepare;
 516         enum suspended_state    suspend_state_next;
 517         enum suspended_state    suspend_state;
 518         bool                    scanning_paused;
 519         bool                    suspended;
 520         u8                      wake_reason;
 521         bdaddr_t                wake_addr;
 522         u8                      wake_addr_type;
 523
 524         wait_queue_head_t       suspend_wait_q;
 525         DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
 526
 527 #ifdef TIZEN_BT
 528         struct discovery_state  le_discovery;
 529 #endif
 530         struct hci_conn_hash    conn_hash;
 531
 532         struct list_head        mgmt_pending;
 533         struct list_head        reject_list;
 534         struct list_head        accept_list;
 535         struct list_head        uuids;
 536         struct list_head        link_keys;
 537         struct list_head        long_term_keys;
 538         struct list_head        identity_resolving_keys;
 539         struct list_head        remote_oob_data;
 540         struct list_head        le_accept_list;
 541         struct list_head        le_resolv_list;
 542         struct list_head        le_conn_params;
 543         struct list_head        pend_le_conns;
 544         struct list_head        pend_le_reports;
 545         struct list_head        blocked_keys;
 546
 547         struct hci_dev_stats    stat;
 548
 549         atomic_t                promisc;
 550
 551         const char              *hw_info;
 552         const char              *fw_info;
 553         struct dentry           *debugfs;
 554
 555         struct device           dev;
 556
 557         struct rfkill           *rfkill;
 558
 559         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 560
 561         __s8                    adv_tx_power;
 562         __u8                    adv_data[HCI_MAX_EXT_AD_LENGTH];
 563         __u8                    adv_data_len;
 564         __u8                    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 565         __u8                    scan_rsp_data_len;
 566
 567         struct list_head        adv_instances;
 568         unsigned int            adv_instance_cnt;
 569         __u8                    cur_adv_instance;
 570         __u16                   adv_instance_timeout;
 571         struct delayed_work     adv_instance_expire;
 572
 573         struct idr              adv_monitors_idr;
 574         unsigned int            adv_monitors_cnt;
 575
 576         __u8                    irk[16];
 577         __u32                   rpa_timeout;
 578         struct delayed_work     rpa_expired;
 579         bdaddr_t                rpa;
 580
 581         enum {
 582                 INTERLEAVE_SCAN_NONE,
 583                 INTERLEAVE_SCAN_NO_FILTER,
 584                 INTERLEAVE_SCAN_ALLOWLIST
 585         } interleave_scan_state;
 586
 587         struct delayed_work     interleave_scan;
 588
 589 #if IS_ENABLED(CONFIG_BT_LEDS)
 590         struct led_trigger      *power_led;
 591 #endif
 592
 593 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
 594         __u16                   msft_opcode;
 595         void                    *msft_data;
 596         bool                    msft_curve_validity;
 597 #endif
 598
 599 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
 600         bool                    aosp_capable;
 601 #endif
 602
 603 #ifdef TIZEN_BT
 604         __u8                    adv_filter_policy;
 605         __u8                    adv_type;
 606         __u8                    manufacturer_len;
 607         __u8                    manufacturer_data[HCI_MAX_EIR_MANUFACTURER_DATA_LENGTH];
 608 #endif
 609
 610         int (*open)(struct hci_dev *hdev);
 611         int (*close)(struct hci_dev *hdev);
 612         int (*flush)(struct hci_dev *hdev);
 613         int (*setup)(struct hci_dev *hdev);
 614         int (*shutdown)(struct hci_dev *hdev);
 615         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 616         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 617         void (*hw_error)(struct hci_dev *hdev, u8 code);
 618         int (*post_init)(struct hci_dev *hdev);
 619         int (*set_diag)(struct hci_dev *hdev, bool enable);
 620         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 621         void (*cmd_timeout)(struct hci_dev *hdev);
 622         bool (*prevent_wake)(struct hci_dev *hdev);
 623 };
 624
 625 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 626
 627 enum conn_reasons {
 628         CONN_REASON_PAIR_DEVICE,
 629         CONN_REASON_L2CAP_CHAN,
 630         CONN_REASON_SCO_CONNECT,
 631 };
 632
 633 struct hci_conn {
 634         struct list_head list;
 635
 636         atomic_t        refcnt;
 637
 638         bdaddr_t        dst;
 639         __u8            dst_type;
 640         bdaddr_t        src;
 641         __u8            src_type;
 642         bdaddr_t        init_addr;
 643         __u8            init_addr_type;
 644         bdaddr_t        resp_addr;
 645         __u8            resp_addr_type;
 646         __u8            adv_instance;
 647         __u16           handle;
 648         __u16           state;
 649         __u8            mode;
 650         __u8            type;
 651         __u8            role;
 652         bool            out;
 653         __u8            attempt;
 654         __u8            dev_class[3];
 655         __u8            features[HCI_MAX_PAGES][8];
 656         __u16           pkt_type;
 657         __u16           link_policy;
 658         __u8            key_type;
 659         __u8            auth_type;
 660         __u8            sec_level;
 661         __u8            pending_sec_level;
 662         __u8            pin_length;
 663         __u8            enc_key_size;
 664         __u8            io_capability;
 665         __u32           passkey_notify;
 666         __u8            passkey_entered;
 667         __u16           disc_timeout;
 668         __u16           conn_timeout;
 669         __u16           setting;
 670         __u16           auth_payload_timeout;
 671         __u16           le_conn_min_interval;
 672         __u16           le_conn_max_interval;
 673         __u16           le_conn_interval;
 674         __u16           le_conn_latency;
 675         __u16           le_supv_timeout;
 676         __u8            le_adv_data[HCI_MAX_AD_LENGTH];
 677         __u8            le_adv_data_len;
 678         __u8            le_tx_phy;
 679         __u8            le_rx_phy;
 680         __s8            rssi;
 681         __s8            tx_power;
 682         __s8            max_tx_power;
 683         unsigned long   flags;
 684
 685         enum conn_reasons conn_reason;
 686
 687         __u32           clock;
 688         __u16           clock_accuracy;
 689
 690         unsigned long   conn_info_timestamp;
 691
 692         __u8            remote_cap;
 693         __u8            remote_auth;
 694         __u8            remote_id;
 695
 696         unsigned int    sent;
 697 #ifdef TIZEN_BT
 698         __u16           tx_len;
 699         __u16           tx_time;
 700         __u16           rx_len;
 701         __u16           rx_time;
 702 #endif
 703
 704         struct sk_buff_head data_q;
 705         struct list_head chan_list;
 706
 707         struct delayed_work disc_work;
 708         struct delayed_work auto_accept_work;
 709         struct delayed_work idle_work;
 710         struct delayed_work le_conn_timeout;
 711         struct work_struct  le_scan_cleanup;
 712
 713         struct device   dev;
 714         struct dentry   *debugfs;
 715
 716         struct hci_dev  *hdev;
 717         void            *l2cap_data;
 718         void            *sco_data;
 719         struct amp_mgr  *amp_mgr;
 720
 721 #ifdef TIZEN_BT
 722         bool            rssi_monitored;
 723         __u8            sco_role;
 724         __u16           voice_setting;
 725 #endif
 726         struct hci_conn *link;
 727
 728         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 729         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 730         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 731 };
 732
 733 struct hci_chan {
 734         struct list_head list;
 735         __u16 handle;
 736         struct hci_conn *conn;
 737         struct sk_buff_head data_q;
 738         unsigned int    sent;
 739         __u8            state;
 740         bool            amp;
 741 };
 742
 743 struct hci_conn_params {
 744         struct list_head list;
 745         struct list_head action;
 746
 747         bdaddr_t addr;
 748         u8 addr_type;
 749
 750         u16 conn_min_interval;
 751         u16 conn_max_interval;
 752         u16 conn_latency;
 753         u16 supervision_timeout;
 754
 755 #ifdef TIZEN_BT
 756         u16 max_tx_octets;
 757         u16 max_tx_time;
 758 #endif
 759         enum {
 760                 HCI_AUTO_CONN_DISABLED,
 761                 HCI_AUTO_CONN_REPORT,
 762                 HCI_AUTO_CONN_DIRECT,
 763                 HCI_AUTO_CONN_ALWAYS,
 764                 HCI_AUTO_CONN_LINK_LOSS,
 765                 HCI_AUTO_CONN_EXPLICIT,
 766         } auto_connect;
 767
 768         struct hci_conn *conn;
 769         bool explicit_connect;
 770         u32 current_flags;
 771 };
 772
 773 extern struct list_head hci_dev_list;
 774 extern struct list_head hci_cb_list;
 775 extern rwlock_t hci_dev_list_lock;
 776 extern struct mutex hci_cb_list_lock;
 777
 778 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 779 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 780 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 781 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 782 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 783 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 784 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 785
 786 #define hci_dev_clear_volatile_flags(hdev)                      \
 787         do {                                                    \
 788                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 789                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 790                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 791                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 792         } while (0)
 793
 794 /* ----- HCI interface to upper protocols ----- */
 795 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 796 int l2cap_disconn_ind(struct hci_conn *hcon);
 797 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 798
 799 #if IS_ENABLED(CONFIG_BT_BREDR)
 800 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 801 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 802 #else
 803 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 804                                   __u8 *flags)
 805 {
 806         return 0;
 807 }
 808
 809 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 810 {
 811 }
 812 #endif
 813
 814 /* ----- Inquiry cache ----- */
 815 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 816 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 817
 818 static inline void discovery_init(struct hci_dev *hdev)
 819 {
 820         hdev->discovery.state = DISCOVERY_STOPPED;
 821         INIT_LIST_HEAD(&hdev->discovery.all);
 822         INIT_LIST_HEAD(&hdev->discovery.unknown);
 823         INIT_LIST_HEAD(&hdev->discovery.resolve);
 824         hdev->discovery.report_invalid_rssi = true;
 825         hdev->discovery.rssi = HCI_RSSI_INVALID;
 826 }
 827
 828 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 829 {
 830         hdev->discovery.result_filtering = false;
 831         hdev->discovery.report_invalid_rssi = true;
 832         hdev->discovery.rssi = HCI_RSSI_INVALID;
 833         hdev->discovery.uuid_count = 0;
 834         kfree(hdev->discovery.uuids);
 835         hdev->discovery.uuids = NULL;
 836         hdev->discovery.scan_start = 0;
 837         hdev->discovery.scan_duration = 0;
 838 }
 839
 840 bool hci_discovery_active(struct hci_dev *hdev);
 841
 842 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 843
 844 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 845 {
 846         return list_empty(&hdev->discovery.all);
 847 }
 848
 849 static inline long inquiry_cache_age(struct hci_dev *hdev)
 850 {
 851         struct discovery_state *c = &hdev->discovery;
 852         return jiffies - c->timestamp;
 853 }
 854
 855 static inline long inquiry_entry_age(struct inquiry_entry *e)
 856 {
 857         return jiffies - e->timestamp;
 858 }
 859
 860 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 861                                                bdaddr_t *bdaddr);
 862 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 863                                                        bdaddr_t *bdaddr);
 864 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 865                                                        bdaddr_t *bdaddr,
 866                                                        int state);
 867 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 868                                       struct inquiry_entry *ie);
 869 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 870                              bool name_known);
 871 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 872
 873 /* ----- HCI Connections ----- */
 874 #ifdef TIZEN_BT
 875 #define LINK_SUPERVISION_TIMEOUT        0x1F40   /* n * 0.625 = 5 seconds */
 876 #endif /* TIZEN_BT */
 877
 878 enum {
 879         HCI_CONN_AUTH_PEND,
 880         HCI_CONN_REAUTH_PEND,
 881         HCI_CONN_ENCRYPT_PEND,
 882         HCI_CONN_RSWITCH_PEND,
 883         HCI_CONN_MODE_CHANGE_PEND,
 884         HCI_CONN_SCO_SETUP_PEND,
 885         HCI_CONN_MGMT_CONNECTED,
 886         HCI_CONN_SSP_ENABLED,
 887         HCI_CONN_SC_ENABLED,
 888         HCI_CONN_AES_CCM,
 889         HCI_CONN_POWER_SAVE,
 890         HCI_CONN_FLUSH_KEY,
 891         HCI_CONN_ENCRYPT,
 892         HCI_CONN_AUTH,
 893         HCI_CONN_SECURE,
 894         HCI_CONN_FIPS,
 895         HCI_CONN_STK_ENCRYPT,
 896         HCI_CONN_AUTH_INITIATOR,
 897         HCI_CONN_DROP,
 898         HCI_CONN_PARAM_REMOVAL_PEND,
 899         HCI_CONN_NEW_LINK_KEY,
 900         HCI_CONN_SCANNING,
 901         HCI_CONN_AUTH_FAILURE,
 902 };
 903
 904 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 905 {
 906         struct hci_dev *hdev = conn->hdev;
 907         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 908                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 909 }
 910
 911 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 912 {
 913         struct hci_dev *hdev = conn->hdev;
 914         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 915                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 916 }
 917
 918 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 919 {
 920         struct hci_conn_hash *h = &hdev->conn_hash;
 921         list_add_rcu(&c->list, &h->list);
 922         switch (c->type) {
 923         case ACL_LINK:
 924                 h->acl_num++;
 925                 break;
 926         case AMP_LINK:
 927                 h->amp_num++;
 928                 break;
 929         case LE_LINK:
 930                 h->le_num++;
 931                 if (c->role == HCI_ROLE_SLAVE)
 932                         h->le_num_peripheral++;
 933                 break;
 934         case SCO_LINK:
 935         case ESCO_LINK:
 936                 h->sco_num++;
 937                 break;
 938         }
 939 }
 940
 941 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 942 {
 943         struct hci_conn_hash *h = &hdev->conn_hash;
 944
 945         list_del_rcu(&c->list);
 946         synchronize_rcu();
 947
 948         switch (c->type) {
 949         case ACL_LINK:
 950                 h->acl_num--;
 951                 break;
 952         case AMP_LINK:
 953                 h->amp_num--;
 954                 break;
 955         case LE_LINK:
 956                 h->le_num--;
 957                 if (c->role == HCI_ROLE_SLAVE)
 958                         h->le_num_peripheral--;
 959                 break;
 960         case SCO_LINK:
 961         case ESCO_LINK:
 962                 h->sco_num--;
 963                 break;
 964         }
 965 }
 966
 967 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 968 {
 969         struct hci_conn_hash *h = &hdev->conn_hash;
 970         switch (type) {
 971         case ACL_LINK:
 972                 return h->acl_num;
 973         case AMP_LINK:
 974                 return h->amp_num;
 975         case LE_LINK:
 976                 return h->le_num;
 977         case SCO_LINK:
 978         case ESCO_LINK:
 979                 return h->sco_num;
 980         default:
 981                 return 0;
 982         }
 983 }
 984
 985 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 986 {
 987         struct hci_conn_hash *c = &hdev->conn_hash;
 988
 989         return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 990 }
 991
 992 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 993 {
 994         struct hci_conn_hash *h = &hdev->conn_hash;
 995         struct hci_conn *c;
 996         __u8 type = INVALID_LINK;
 997
 998         rcu_read_lock();
 999
1000         list_for_each_entry_rcu(c, &h->list, list) {
1001                 if (c->handle == handle) {
1002                         type = c->type;
1003                         break;
1004                 }
1005         }
1006
1007         rcu_read_unlock();
1008
1009         return type;
1010 }
1011
1012 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
1013                                                                 __u16 handle)
1014 {
1015         struct hci_conn_hash *h = &hdev->conn_hash;
1016         struct hci_conn  *c;
1017
1018         rcu_read_lock();
1019
1020         list_for_each_entry_rcu(c, &h->list, list) {
1021                 if (c->handle == handle) {
1022                         rcu_read_unlock();
1023                         return c;
1024                 }
1025         }
1026         rcu_read_unlock();
1027
1028         return NULL;
1029 }
1030
1031 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1032                                                         __u8 type, bdaddr_t *ba)
1033 {
1034         struct hci_conn_hash *h = &hdev->conn_hash;
1035         struct hci_conn  *c;
1036
1037         rcu_read_lock();
1038
1039         list_for_each_entry_rcu(c, &h->list, list) {
1040                 if (c->type == type && !bacmp(&c->dst, ba)) {
1041                         rcu_read_unlock();
1042                         return c;
1043                 }
1044         }
1045
1046         rcu_read_unlock();
1047
1048         return NULL;
1049 }
1050
1051 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1052                                                        bdaddr_t *ba,
1053                                                        __u8 ba_type)
1054 {
1055         struct hci_conn_hash *h = &hdev->conn_hash;
1056         struct hci_conn  *c;
1057
1058         rcu_read_lock();
1059
1060         list_for_each_entry_rcu(c, &h->list, list) {
1061                 if (c->type != LE_LINK)
1062                        continue;
1063
1064                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1065                         rcu_read_unlock();
1066                         return c;
1067                 }
1068         }
1069
1070         rcu_read_unlock();
1071
1072         return NULL;
1073 }
1074
1075 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1076                                                         __u8 type, __u16 state)
1077 {
1078         struct hci_conn_hash *h = &hdev->conn_hash;
1079         struct hci_conn  *c;
1080
1081         rcu_read_lock();
1082
1083         list_for_each_entry_rcu(c, &h->list, list) {
1084                 if (c->type == type && c->state == state) {
1085                         rcu_read_unlock();
1086                         return c;
1087                 }
1088         }
1089
1090         rcu_read_unlock();
1091
1092         return NULL;
1093 }
1094
1095 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1096 {
1097         struct hci_conn_hash *h = &hdev->conn_hash;
1098         struct hci_conn  *c;
1099
1100         rcu_read_lock();
1101
1102         list_for_each_entry_rcu(c, &h->list, list) {
1103                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1104                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1105                         rcu_read_unlock();
1106                         return c;
1107                 }
1108         }
1109
1110         rcu_read_unlock();
1111
1112         return NULL;
1113 }
1114
1115 #ifdef TIZEN_BT
1116 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1117                                         __u8 type, bdaddr_t *ba, bool value)
1118 {
1119         struct hci_conn_hash *h = &hdev->conn_hash;
1120         struct hci_conn  *c;
1121         __u8 conn_type;
1122
1123         if (type == 0x01)
1124                 conn_type = LE_LINK;
1125         else
1126                 conn_type = ACL_LINK;
1127
1128         rcu_read_lock();
1129
1130         list_for_each_entry_rcu(c, &h->list, list) {
1131                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1132                         c->rssi_monitored = value;
1133                         rcu_read_unlock();
1134                         return true;
1135                 }
1136         }
1137
1138         rcu_read_unlock();
1139         return false;
1140 }
1141
1142 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1143                                         __u8 type)
1144 {
1145         struct hci_conn_hash *h = &hdev->conn_hash;
1146         struct hci_conn  *c;
1147         __u8 conn_type;
1148
1149         if (type == 0x01)
1150                 conn_type = LE_LINK;
1151         else
1152                 conn_type = ACL_LINK;
1153
1154         rcu_read_lock();
1155         list_for_each_entry_rcu(c, &h->list, list) {
1156                 if (c->type == conn_type)
1157                         c->rssi_monitored = false;
1158         }
1159         rcu_read_unlock();
1160 }
1161
1162 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1163 {
1164         struct hci_conn_hash *h = &hdev->conn_hash;
1165         struct hci_conn  *c;
1166         int count = 0;
1167
1168         rcu_read_lock();
1169         list_for_each_entry_rcu(c, &h->list, list) {
1170                 if (c->rssi_monitored == true)
1171                         ++count;
1172         }
1173         rcu_read_unlock();
1174
1175         return count;
1176 }
1177
1178 int hci_conn_change_supervision_timeout(struct hci_conn *conn, __u16 timeout);
1179 bool hci_le_discovery_active(struct hci_dev *hdev);
1180 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1181
1182 static inline struct hci_conn *hci_conn_hash_lookup_sco(struct hci_dev *hdev)
1183 {
1184         struct hci_conn_hash *h = &hdev->conn_hash;
1185         struct hci_conn  *c;
1186
1187         rcu_read_lock();
1188         list_for_each_entry_rcu(c, &h->list, list) {
1189                 if (c->type == SCO_LINK || c->type == ESCO_LINK) {
1190                         rcu_read_unlock();
1191                         return c;
1192                 }
1193         }
1194         rcu_read_unlock();
1195
1196         return NULL;
1197 }
1198 #endif
1199
1200 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1201 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1202 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1203
1204 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1205                               u8 role);
1206 int hci_conn_del(struct hci_conn *conn);
1207 void hci_conn_hash_flush(struct hci_dev *hdev);
1208 void hci_conn_check_pending(struct hci_dev *hdev);
1209
1210 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1211 void hci_chan_del(struct hci_chan *chan);
1212 void hci_chan_list_flush(struct hci_conn *conn);
1213 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1214
1215 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1216                                      u8 dst_type, u8 sec_level,
1217                                      u16 conn_timeout,
1218                                      enum conn_reasons conn_reason);
1219 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1220                                 u8 dst_type, u8 sec_level, u16 conn_timeout,
1221                                 u8 role, bdaddr_t *direct_rpa);
1222 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1223                                  u8 sec_level, u8 auth_type,
1224                                  enum conn_reasons conn_reason);
1225 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1226                                  __u16 setting);
1227 int hci_conn_check_link_mode(struct hci_conn *conn);
1228 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1229 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1230                       bool initiator);
1231 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1232
1233 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1234
1235 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1236
1237 /*
1238  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1239  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1240  * working or anything else. They just guarantee that the object is available
1241  * and can be dereferenced. So you can use its locks, local variables and any
1242  * other constant data.
1243  * Before accessing runtime data, you _must_ lock the object and then check that
1244  * it is still running. As soon as you release the locks, the connection might
1245  * get dropped, though.
1246  *
1247  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1248  * how long the underlying connection is held. So every channel that runs on the
1249  * hci_conn object calls this to prevent the connection from disappearing. As
1250  * long as you hold a device, you must also guarantee that you have a valid
1251  * reference to the device via hci_conn_get() (or the initial reference from
1252  * hci_conn_add()).
1253  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1254  * break because nobody cares for that. But this means, we cannot use
1255  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1256  */
1257
1258 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1259 {
1260         get_device(&conn->dev);
1261         return conn;
1262 }
1263
1264 static inline void hci_conn_put(struct hci_conn *conn)
1265 {
1266         put_device(&conn->dev);
1267 }
1268
1269 static inline void hci_conn_hold(struct hci_conn *conn)
1270 {
1271         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1272
1273         atomic_inc(&conn->refcnt);
1274         cancel_delayed_work(&conn->disc_work);
1275 }
1276
1277 static inline void hci_conn_drop(struct hci_conn *conn)
1278 {
1279         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1280
1281         if (atomic_dec_and_test(&conn->refcnt)) {
1282                 unsigned long timeo;
1283
1284                 switch (conn->type) {
1285                 case ACL_LINK:
1286                 case LE_LINK:
1287                         cancel_delayed_work(&conn->idle_work);
1288                         if (conn->state == BT_CONNECTED) {
1289                                 timeo = conn->disc_timeout;
1290                                 if (!conn->out)
1291                                         timeo *= 2;
1292                         } else {
1293                                 timeo = 0;
1294                         }
1295                         break;
1296
1297                 case AMP_LINK:
1298                         timeo = conn->disc_timeout;
1299                         break;
1300
1301                 default:
1302                         timeo = 0;
1303                         break;
1304                 }
1305
1306                 cancel_delayed_work(&conn->disc_work);
1307                 queue_delayed_work(conn->hdev->workqueue,
1308                                    &conn->disc_work, timeo);
1309         }
1310 }
1311
1312 /* ----- HCI Devices ----- */
1313 static inline void hci_dev_put(struct hci_dev *d)
1314 {
1315         BT_DBG("%s orig refcnt %d", d->name,
1316                kref_read(&d->dev.kobj.kref));
1317
1318         put_device(&d->dev);
1319 }
1320
1321 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1322 {
1323         BT_DBG("%s orig refcnt %d", d->name,
1324                kref_read(&d->dev.kobj.kref));
1325
1326         get_device(&d->dev);
1327         return d;
1328 }
1329
1330 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1331 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1332
1333 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1334 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1335
1336 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1337 {
1338         return dev_get_drvdata(&hdev->dev);
1339 }
1340
1341 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1342 {
1343         dev_set_drvdata(&hdev->dev, data);
1344 }
1345
1346 static inline void *hci_get_priv(struct hci_dev *hdev)
1347 {
1348         return (char *)hdev + sizeof(*hdev);
1349 }
1350
1351 struct hci_dev *hci_dev_get(int index);
1352 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1353
1354 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1355
1356 static inline struct hci_dev *hci_alloc_dev(void)
1357 {
1358         return hci_alloc_dev_priv(0);
1359 }
1360
1361 void hci_free_dev(struct hci_dev *hdev);
1362 int hci_register_dev(struct hci_dev *hdev);
1363 void hci_unregister_dev(struct hci_dev *hdev);
1364 void hci_release_dev(struct hci_dev *hdev);
1365 int hci_suspend_dev(struct hci_dev *hdev);
1366 int hci_resume_dev(struct hci_dev *hdev);
1367 int hci_reset_dev(struct hci_dev *hdev);
1368 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1369 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1370 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1371 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1372
1373 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1374 {
1375 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1376         hdev->msft_opcode = opcode;
1377 #endif
1378 }
1379
1380 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1381 {
1382 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1383         hdev->aosp_capable = true;
1384 #endif
1385 }
1386
1387 int hci_dev_open(__u16 dev);
1388 int hci_dev_close(__u16 dev);
1389 int hci_dev_do_close(struct hci_dev *hdev);
1390 int hci_dev_reset(__u16 dev);
1391 int hci_dev_reset_stat(__u16 dev);
1392 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1393 int hci_get_dev_list(void __user *arg);
1394 int hci_get_dev_info(void __user *arg);
1395 int hci_get_conn_list(void __user *arg);
1396 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1397 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1398 #ifdef TIZEN_BT
1399 u32 get_link_mode(struct hci_conn *conn);
1400 #endif
1401 int hci_inquiry(void __user *arg);
1402
1403 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1404                                            bdaddr_t *bdaddr, u8 type);
1405 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1406                                     struct list_head *list, bdaddr_t *bdaddr,
1407                                     u8 type);
1408 struct bdaddr_list_with_flags *
1409 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1410                                   u8 type);
1411 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1412 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1413                                  u8 type, u8 *peer_irk, u8 *local_irk);
1414 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1415                                    u8 type, u32 flags);
1416 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1417 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1418                                  u8 type);
1419 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1420                                    u8 type);
1421 void hci_bdaddr_list_clear(struct list_head *list);
1422
1423 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1424                                                bdaddr_t *addr, u8 addr_type);
1425 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1426                                             bdaddr_t *addr, u8 addr_type);
1427 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1428 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1429
1430 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1431                                                   bdaddr_t *addr,
1432                                                   u8 addr_type);
1433
1434 void hci_uuids_clear(struct hci_dev *hdev);
1435
1436 void hci_link_keys_clear(struct hci_dev *hdev);
1437 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1438 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1439                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1440                                   u8 pin_len, bool *persistent);
1441 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1442                             u8 addr_type, u8 type, u8 authenticated,
1443                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1444 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1445                              u8 addr_type, u8 role);
1446 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1447 void hci_smp_ltks_clear(struct hci_dev *hdev);
1448 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1449
1450 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1451 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1452                                      u8 addr_type);
1453 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1454                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1455 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1456 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1457 void hci_blocked_keys_clear(struct hci_dev *hdev);
1458 void hci_smp_irks_clear(struct hci_dev *hdev);
1459
1460 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1461
1462 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1463 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1464                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1465 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1466                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1467                             u8 *hash256, u8 *rand256);
1468 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1469                                u8 bdaddr_type);
1470
1471 void hci_adv_instances_clear(struct hci_dev *hdev);
1472 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1473 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1474 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1475                          u16 adv_data_len, u8 *adv_data,
1476                          u16 scan_rsp_len, u8 *scan_rsp_data,
1477                          u16 timeout, u16 duration, s8 tx_power,
1478                          u32 min_interval, u32 max_interval);
1479 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1480                          u16 adv_data_len, u8 *adv_data,
1481                          u16 scan_rsp_len, u8 *scan_rsp_data);
1482 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1483 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1484
1485 void hci_adv_monitors_clear(struct hci_dev *hdev);
1486 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1487 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1488 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1489 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
1490                         int *err);
1491 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
1492 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
1493 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1494 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1495
1496 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1497
1498 void hci_init_sysfs(struct hci_dev *hdev);
1499 void hci_conn_init_sysfs(struct hci_conn *conn);
1500 void hci_conn_add_sysfs(struct hci_conn *conn);
1501 void hci_conn_del_sysfs(struct hci_conn *conn);
1502
1503 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1504
1505 /* ----- LMP capabilities ----- */
1506 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1507 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1508 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1509 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1510 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1511 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1512 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1513 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1514 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1515 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1516 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1517 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1518 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1519 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1520 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1521 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1522 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1523 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1524 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1525 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1526 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1527 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1528 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1529 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1530
1531 /* ----- Extended LMP capabilities ----- */
1532 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1533 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1534 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1535 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1536 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1537 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1538
1539 /* ----- Host capabilities ----- */
1540 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1541 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1542 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1543 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1544
1545 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1546                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1547 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1548                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1549 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1550                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1551 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1552                                 !adv->rpa_expired)
1553
1554 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1555                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1556
1557 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1558                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1559
1560 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1561                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1562
1563 /* Use LL Privacy based address resolution if supported */
1564 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1565
1566 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1567 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1568                            ((dev)->commands[37] & 0x40))
1569 /* Use ext create connection if command is supported */
1570 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1571
1572 /* Extended advertising support */
1573 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1574
1575 /* ----- HCI protocols ----- */
1576 #define HCI_PROTO_DEFER             0x01
1577
1578 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1579                                         __u8 type, __u8 *flags)
1580 {
1581         switch (type) {
1582         case ACL_LINK:
1583                 return l2cap_connect_ind(hdev, bdaddr);
1584
1585         case SCO_LINK:
1586         case ESCO_LINK:
1587                 return sco_connect_ind(hdev, bdaddr, flags);
1588
1589         default:
1590                 BT_ERR("unknown link type %d", type);
1591                 return -EINVAL;
1592         }
1593 }
1594
1595 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1596 {
1597         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1598                 return HCI_ERROR_REMOTE_USER_TERM;
1599
1600         return l2cap_disconn_ind(conn);
1601 }
1602
1603 /* ----- HCI callbacks ----- */
1604 struct hci_cb {
1605         struct list_head list;
1606
1607         char *name;
1608
1609         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1610         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1611         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1612                                                                 __u8 encrypt);
1613         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1614         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1615 };
1616
1617 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1618 {
1619         struct hci_cb *cb;
1620
1621         mutex_lock(&hci_cb_list_lock);
1622         list_for_each_entry(cb, &hci_cb_list, list) {
1623                 if (cb->connect_cfm)
1624                         cb->connect_cfm(conn, status);
1625         }
1626         mutex_unlock(&hci_cb_list_lock);
1627
1628         if (conn->connect_cfm_cb)
1629                 conn->connect_cfm_cb(conn, status);
1630 }
1631
1632 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1633 {
1634         struct hci_cb *cb;
1635
1636         mutex_lock(&hci_cb_list_lock);
1637         list_for_each_entry(cb, &hci_cb_list, list) {
1638                 if (cb->disconn_cfm)
1639                         cb->disconn_cfm(conn, reason);
1640         }
1641         mutex_unlock(&hci_cb_list_lock);
1642
1643         if (conn->disconn_cfm_cb)
1644                 conn->disconn_cfm_cb(conn, reason);
1645 }
1646
1647 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1648 {
1649         struct hci_cb *cb;
1650         __u8 encrypt;
1651
1652         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1653                 return;
1654
1655         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1656
1657         mutex_lock(&hci_cb_list_lock);
1658         list_for_each_entry(cb, &hci_cb_list, list) {
1659                 if (cb->security_cfm)
1660                         cb->security_cfm(conn, status, encrypt);
1661         }
1662         mutex_unlock(&hci_cb_list_lock);
1663
1664         if (conn->security_cfm_cb)
1665                 conn->security_cfm_cb(conn, status);
1666 }
1667
1668 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1669 {
1670         struct hci_cb *cb;
1671         __u8 encrypt;
1672
1673         if (conn->state == BT_CONFIG) {
1674                 if (!status)
1675                         conn->state = BT_CONNECTED;
1676
1677                 hci_connect_cfm(conn, status);
1678                 hci_conn_drop(conn);
1679                 return;
1680         }
1681
1682         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1683                 encrypt = 0x00;
1684         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1685                 encrypt = 0x02;
1686         else
1687                 encrypt = 0x01;
1688
1689         if (!status) {
1690                 if (conn->sec_level == BT_SECURITY_SDP)
1691                         conn->sec_level = BT_SECURITY_LOW;
1692
1693                 if (conn->pending_sec_level > conn->sec_level)
1694                         conn->sec_level = conn->pending_sec_level;
1695         }
1696
1697         mutex_lock(&hci_cb_list_lock);
1698         list_for_each_entry(cb, &hci_cb_list, list) {
1699                 if (cb->security_cfm)
1700                         cb->security_cfm(conn, status, encrypt);
1701         }
1702         mutex_unlock(&hci_cb_list_lock);
1703
1704         if (conn->security_cfm_cb)
1705                 conn->security_cfm_cb(conn, status);
1706 }
1707
1708 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1709 {
1710         struct hci_cb *cb;
1711
1712         mutex_lock(&hci_cb_list_lock);
1713         list_for_each_entry(cb, &hci_cb_list, list) {
1714                 if (cb->key_change_cfm)
1715                         cb->key_change_cfm(conn, status);
1716         }
1717         mutex_unlock(&hci_cb_list_lock);
1718 }
1719
1720 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1721                                                                 __u8 role)
1722 {
1723         struct hci_cb *cb;
1724
1725         mutex_lock(&hci_cb_list_lock);
1726         list_for_each_entry(cb, &hci_cb_list, list) {
1727                 if (cb->role_switch_cfm)
1728                         cb->role_switch_cfm(conn, status, role);
1729         }
1730         mutex_unlock(&hci_cb_list_lock);
1731 }
1732
1733 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1734                                  size_t *data_len)
1735 {
1736         size_t parsed = 0;
1737
1738         if (eir_len < 2)
1739                 return NULL;
1740
1741         while (parsed < eir_len - 1) {
1742                 u8 field_len = eir[0];
1743
1744                 if (field_len == 0)
1745                         break;
1746
1747                 parsed += field_len + 1;
1748
1749                 if (parsed > eir_len)
1750                         break;
1751
1752                 if (eir[1] != type) {
1753                         eir += field_len + 1;
1754                         continue;
1755                 }
1756
1757                 /* Zero length data */
1758                 if (field_len == 1)
1759                         return NULL;
1760
1761                 if (data_len)
1762                         *data_len = field_len - 1;
1763
1764                 return &eir[2];
1765         }
1766
1767         return NULL;
1768 }
1769
1770 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1771 {
1772         if (addr_type != ADDR_LE_DEV_RANDOM)
1773                 return false;
1774
1775         if ((bdaddr->b[5] & 0xc0) == 0x40)
1776                return true;
1777
1778         return false;
1779 }
1780
1781 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1782 {
1783         if (addr_type == ADDR_LE_DEV_PUBLIC)
1784                 return true;
1785
1786         /* Check for Random Static address type */
1787         if ((addr->b[5] & 0xc0) == 0xc0)
1788                 return true;
1789
1790         return false;
1791 }
1792
1793 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1794                                           bdaddr_t *bdaddr, u8 addr_type)
1795 {
1796         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1797                 return NULL;
1798
1799         return hci_find_irk_by_rpa(hdev, bdaddr);
1800 }
1801
1802 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1803                                         u16 to_multiplier)
1804 {
1805         u16 max_latency;
1806
1807         if (min > max || min < 6 || max > 3200)
1808                 return -EINVAL;
1809
1810         if (to_multiplier < 10 || to_multiplier > 3200)
1811                 return -EINVAL;
1812
1813         if (max >= to_multiplier * 8)
1814                 return -EINVAL;
1815
1816         max_latency = (to_multiplier * 4 / max) - 1;
1817         if (latency > 499 || latency > max_latency)
1818                 return -EINVAL;
1819
1820         return 0;
1821 }
1822
1823 int hci_register_cb(struct hci_cb *hcb);
1824 int hci_unregister_cb(struct hci_cb *hcb);
1825
1826 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1827                                const void *param, u32 timeout);
1828 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1829                                   const void *param, u8 event, u32 timeout);
1830 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1831                    const void *param);
1832
1833 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1834                  const void *param);
1835 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1836 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1837
1838 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1839
1840 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1841                              const void *param, u32 timeout);
1842
1843 u32 hci_conn_get_phy(struct hci_conn *conn);
1844
1845 /* ----- HCI Sockets ----- */
1846 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1847 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1848                          int flag, struct sock *skip_sk);
1849 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1850 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1851                                  void *data, u16 data_len, ktime_t tstamp,
1852                                  int flag, struct sock *skip_sk);
1853
1854 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1855
1856 #define HCI_MGMT_VAR_LEN        BIT(0)
1857 #define HCI_MGMT_NO_HDEV        BIT(1)
1858 #define HCI_MGMT_UNTRUSTED      BIT(2)
1859 #define HCI_MGMT_UNCONFIGURED   BIT(3)
1860 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
1861
1862 struct hci_mgmt_handler {
1863         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1864                      u16 data_len);
1865         size_t data_len;
1866         unsigned long flags;
1867 };
1868
1869 struct hci_mgmt_chan {
1870         struct list_head list;
1871         unsigned short channel;
1872         size_t handler_count;
1873         const struct hci_mgmt_handler *handlers;
1874 #ifdef TIZEN_BT
1875         size_t tizen_handler_count;
1876         const struct hci_mgmt_handler *tizen_handlers;
1877 #endif
1878         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1879 };
1880
1881 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1882 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1883
1884 /* Management interface */
1885 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1886 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1887                                          BIT(BDADDR_LE_RANDOM))
1888 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1889                                          BIT(BDADDR_LE_PUBLIC) | \
1890                                          BIT(BDADDR_LE_RANDOM))
1891
1892 /* These LE scan and inquiry parameters were chosen according to LE General
1893  * Discovery Procedure specification.
1894  */
1895 #define DISCOV_LE_SCAN_WIN              0x12
1896 #define DISCOV_LE_SCAN_INT              0x12
1897 #define DISCOV_LE_TIMEOUT               10240   /* msec */
1898 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
1899 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1900 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1901 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
1902 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
1903 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
1904
1905 void mgmt_fill_version_info(void *ver);
1906 int mgmt_new_settings(struct hci_dev *hdev);
1907 void mgmt_index_added(struct hci_dev *hdev);
1908 void mgmt_index_removed(struct hci_dev *hdev);
1909 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1910 void mgmt_power_on(struct hci_dev *hdev, int err);
1911 void __mgmt_power_off(struct hci_dev *hdev);
1912 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1913                        bool persistent);
1914 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1915                            u8 *name, u8 name_len);
1916 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1917                               u8 link_type, u8 addr_type, u8 reason,
1918                               bool mgmt_connected);
1919 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1920                             u8 link_type, u8 addr_type, u8 status);
1921 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1922                          u8 addr_type, u8 status);
1923 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1924 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1925                                   u8 status);
1926 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1927                                       u8 status);
1928 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1929                               u8 link_type, u8 addr_type, u32 value,
1930                               u8 confirm_hint);
1931 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1932                                      u8 link_type, u8 addr_type, u8 status);
1933 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1934                                          u8 link_type, u8 addr_type, u8 status);
1935 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1936                               u8 link_type, u8 addr_type);
1937 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1938                                      u8 link_type, u8 addr_type, u8 status);
1939 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1940                                          u8 link_type, u8 addr_type, u8 status);
1941 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1942                              u8 link_type, u8 addr_type, u32 passkey,
1943                              u8 entered);
1944 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1945 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1946 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1947 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1948                                     u8 status);
1949 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1950 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1951 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1952 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1953                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1954                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1955 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1956                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1957 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1958 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1959 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1960                    u8 addr_type);
1961 bool mgmt_powering_down(struct hci_dev *hdev);
1962 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1963 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1964 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1965                    bool persistent);
1966 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1967                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
1968                          u16 max_interval, u16 latency, u16 timeout);
1969 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1970 bool mgmt_get_connectable(struct hci_dev *hdev);
1971 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1972 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1973 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1974 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1975                             u8 instance);
1976 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1977                               u8 instance);
1978 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
1979 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1980 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1981 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1982
1983 #ifdef TIZEN_BT
1984 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
1985                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1986 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
1987                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1988 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
1989                 void *data, u16 len);
1990 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
1991                 s8 alert_type, s8 rssi_dbm);
1992 void mgmt_raw_rssi_response(struct hci_dev *hdev,
1993                 struct hci_cc_rp_get_raw_rssi *rp, int success);
1994 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
1995 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
1996                 u8 name_len);
1997 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
1998 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
1999                 u8 dst_type, u16 conn_interval, u16 conn_latency,
2000                 u16 supervision_timeout);
2001 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
2002                 u8 link_type, u8 addr_type, u8 status);
2003 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
2004 void mgmt_tx_timeout_error(struct hci_dev *hdev);
2005 /*  Pass adv type in the le device found */
2006 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
2007                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
2008                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
2009 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
2010                 u8 state_change_reason, u16 connection_handle);
2011 void mgmt_6lowpan_conn_changed(struct hci_dev *hdev, char if_name[16],
2012                 bdaddr_t *bdaddr, u8 addr_type, bool connected);
2013 void mgmt_le_read_maximum_data_length_complete(struct hci_dev *hdev,
2014                 u8 status);
2015 void mgmt_le_write_host_suggested_data_length_complete(struct hci_dev *hdev,
2016                 u8 status);
2017 void mgmt_le_read_host_suggested_data_length_complete(struct hci_dev *hdev,
2018                 u8 status);
2019 void mgmt_le_data_length_change_complete(struct hci_dev *hdev,
2020                 bdaddr_t *bdaddr, u16 tx_octets, u16 tx_time,
2021                 u16 rx_octets, u16 rx_time);
2022 int hci_le_set_data_length(struct hci_conn *conn, u16 tx_octets, u16 tx_time);
2023 #endif
2024
2025 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
2026                       u16 to_multiplier);
2027 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
2028                       __u8 ltk[16], __u8 key_size);
2029
2030 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
2031                                u8 *bdaddr_type);
2032
2033 #define SCO_AIRMODE_MASK       0x0003
2034 #define SCO_AIRMODE_CVSD       0x0000
2035 #define SCO_AIRMODE_TRANSP     0x0003
2036
2037 #endif /* __HCI_CORE_H */