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
 698         struct sk_buff_head data_q;
 699         struct list_head chan_list;
 700
 701         struct delayed_work disc_work;
 702         struct delayed_work auto_accept_work;
 703         struct delayed_work idle_work;
 704         struct delayed_work le_conn_timeout;
 705         struct work_struct  le_scan_cleanup;
 706
 707         struct device   dev;
 708         struct dentry   *debugfs;
 709
 710         struct hci_dev  *hdev;
 711         void            *l2cap_data;
 712         void            *sco_data;
 713         struct amp_mgr  *amp_mgr;
 714
 715 #ifdef TIZEN_BT
 716         bool            rssi_monitored;
 717 #endif
 718         struct hci_conn *link;
 719
 720         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 721         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 722         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 723 };
 724
 725 struct hci_chan {
 726         struct list_head list;
 727         __u16 handle;
 728         struct hci_conn *conn;
 729         struct sk_buff_head data_q;
 730         unsigned int    sent;
 731         __u8            state;
 732         bool            amp;
 733 };
 734
 735 struct hci_conn_params {
 736         struct list_head list;
 737         struct list_head action;
 738
 739         bdaddr_t addr;
 740         u8 addr_type;
 741
 742         u16 conn_min_interval;
 743         u16 conn_max_interval;
 744         u16 conn_latency;
 745         u16 supervision_timeout;
 746
 747         enum {
 748                 HCI_AUTO_CONN_DISABLED,
 749                 HCI_AUTO_CONN_REPORT,
 750                 HCI_AUTO_CONN_DIRECT,
 751                 HCI_AUTO_CONN_ALWAYS,
 752                 HCI_AUTO_CONN_LINK_LOSS,
 753                 HCI_AUTO_CONN_EXPLICIT,
 754         } auto_connect;
 755
 756         struct hci_conn *conn;
 757         bool explicit_connect;
 758         u32 current_flags;
 759 };
 760
 761 extern struct list_head hci_dev_list;
 762 extern struct list_head hci_cb_list;
 763 extern rwlock_t hci_dev_list_lock;
 764 extern struct mutex hci_cb_list_lock;
 765
 766 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 767 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 768 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 769 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 770 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 771 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 772 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 773
 774 #define hci_dev_clear_volatile_flags(hdev)                      \
 775         do {                                                    \
 776                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 777                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 778                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 779                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 780         } while (0)
 781
 782 /* ----- HCI interface to upper protocols ----- */
 783 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 784 int l2cap_disconn_ind(struct hci_conn *hcon);
 785 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 786
 787 #if IS_ENABLED(CONFIG_BT_BREDR)
 788 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 789 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 790 #else
 791 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 792                                   __u8 *flags)
 793 {
 794         return 0;
 795 }
 796
 797 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 798 {
 799 }
 800 #endif
 801
 802 /* ----- Inquiry cache ----- */
 803 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 804 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 805
 806 static inline void discovery_init(struct hci_dev *hdev)
 807 {
 808         hdev->discovery.state = DISCOVERY_STOPPED;
 809         INIT_LIST_HEAD(&hdev->discovery.all);
 810         INIT_LIST_HEAD(&hdev->discovery.unknown);
 811         INIT_LIST_HEAD(&hdev->discovery.resolve);
 812         hdev->discovery.report_invalid_rssi = true;
 813         hdev->discovery.rssi = HCI_RSSI_INVALID;
 814 }
 815
 816 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 817 {
 818         hdev->discovery.result_filtering = false;
 819         hdev->discovery.report_invalid_rssi = true;
 820         hdev->discovery.rssi = HCI_RSSI_INVALID;
 821         hdev->discovery.uuid_count = 0;
 822         kfree(hdev->discovery.uuids);
 823         hdev->discovery.uuids = NULL;
 824         hdev->discovery.scan_start = 0;
 825         hdev->discovery.scan_duration = 0;
 826 }
 827
 828 bool hci_discovery_active(struct hci_dev *hdev);
 829
 830 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 831
 832 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 833 {
 834         return list_empty(&hdev->discovery.all);
 835 }
 836
 837 static inline long inquiry_cache_age(struct hci_dev *hdev)
 838 {
 839         struct discovery_state *c = &hdev->discovery;
 840         return jiffies - c->timestamp;
 841 }
 842
 843 static inline long inquiry_entry_age(struct inquiry_entry *e)
 844 {
 845         return jiffies - e->timestamp;
 846 }
 847
 848 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 849                                                bdaddr_t *bdaddr);
 850 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 851                                                        bdaddr_t *bdaddr);
 852 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 853                                                        bdaddr_t *bdaddr,
 854                                                        int state);
 855 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 856                                       struct inquiry_entry *ie);
 857 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 858                              bool name_known);
 859 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 860
 861 /* ----- HCI Connections ----- */
 862 enum {
 863         HCI_CONN_AUTH_PEND,
 864         HCI_CONN_REAUTH_PEND,
 865         HCI_CONN_ENCRYPT_PEND,
 866         HCI_CONN_RSWITCH_PEND,
 867         HCI_CONN_MODE_CHANGE_PEND,
 868         HCI_CONN_SCO_SETUP_PEND,
 869         HCI_CONN_MGMT_CONNECTED,
 870         HCI_CONN_SSP_ENABLED,
 871         HCI_CONN_SC_ENABLED,
 872         HCI_CONN_AES_CCM,
 873         HCI_CONN_POWER_SAVE,
 874         HCI_CONN_FLUSH_KEY,
 875         HCI_CONN_ENCRYPT,
 876         HCI_CONN_AUTH,
 877         HCI_CONN_SECURE,
 878         HCI_CONN_FIPS,
 879         HCI_CONN_STK_ENCRYPT,
 880         HCI_CONN_AUTH_INITIATOR,
 881         HCI_CONN_DROP,
 882         HCI_CONN_PARAM_REMOVAL_PEND,
 883         HCI_CONN_NEW_LINK_KEY,
 884         HCI_CONN_SCANNING,
 885         HCI_CONN_AUTH_FAILURE,
 886 };
 887
 888 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 889 {
 890         struct hci_dev *hdev = conn->hdev;
 891         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 892                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 893 }
 894
 895 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 896 {
 897         struct hci_dev *hdev = conn->hdev;
 898         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 899                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 900 }
 901
 902 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 903 {
 904         struct hci_conn_hash *h = &hdev->conn_hash;
 905         list_add_rcu(&c->list, &h->list);
 906         switch (c->type) {
 907         case ACL_LINK:
 908                 h->acl_num++;
 909                 break;
 910         case AMP_LINK:
 911                 h->amp_num++;
 912                 break;
 913         case LE_LINK:
 914                 h->le_num++;
 915                 if (c->role == HCI_ROLE_SLAVE)
 916                         h->le_num_peripheral++;
 917                 break;
 918         case SCO_LINK:
 919         case ESCO_LINK:
 920                 h->sco_num++;
 921                 break;
 922         }
 923 }
 924
 925 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 926 {
 927         struct hci_conn_hash *h = &hdev->conn_hash;
 928
 929         list_del_rcu(&c->list);
 930         synchronize_rcu();
 931
 932         switch (c->type) {
 933         case ACL_LINK:
 934                 h->acl_num--;
 935                 break;
 936         case AMP_LINK:
 937                 h->amp_num--;
 938                 break;
 939         case LE_LINK:
 940                 h->le_num--;
 941                 if (c->role == HCI_ROLE_SLAVE)
 942                         h->le_num_peripheral--;
 943                 break;
 944         case SCO_LINK:
 945         case ESCO_LINK:
 946                 h->sco_num--;
 947                 break;
 948         }
 949 }
 950
 951 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 952 {
 953         struct hci_conn_hash *h = &hdev->conn_hash;
 954         switch (type) {
 955         case ACL_LINK:
 956                 return h->acl_num;
 957         case AMP_LINK:
 958                 return h->amp_num;
 959         case LE_LINK:
 960                 return h->le_num;
 961         case SCO_LINK:
 962         case ESCO_LINK:
 963                 return h->sco_num;
 964         default:
 965                 return 0;
 966         }
 967 }
 968
 969 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 970 {
 971         struct hci_conn_hash *c = &hdev->conn_hash;
 972
 973         return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 974 }
 975
 976 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 977 {
 978         struct hci_conn_hash *h = &hdev->conn_hash;
 979         struct hci_conn *c;
 980         __u8 type = INVALID_LINK;
 981
 982         rcu_read_lock();
 983
 984         list_for_each_entry_rcu(c, &h->list, list) {
 985                 if (c->handle == handle) {
 986                         type = c->type;
 987                         break;
 988                 }
 989         }
 990
 991         rcu_read_unlock();
 992
 993         return type;
 994 }
 995
 996 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 997                                                                 __u16 handle)
 998 {
 999         struct hci_conn_hash *h = &hdev->conn_hash;
1000         struct hci_conn  *c;
1001
1002         rcu_read_lock();
1003
1004         list_for_each_entry_rcu(c, &h->list, list) {
1005                 if (c->handle == handle) {
1006                         rcu_read_unlock();
1007                         return c;
1008                 }
1009         }
1010         rcu_read_unlock();
1011
1012         return NULL;
1013 }
1014
1015 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1016                                                         __u8 type, bdaddr_t *ba)
1017 {
1018         struct hci_conn_hash *h = &hdev->conn_hash;
1019         struct hci_conn  *c;
1020
1021         rcu_read_lock();
1022
1023         list_for_each_entry_rcu(c, &h->list, list) {
1024                 if (c->type == type && !bacmp(&c->dst, ba)) {
1025                         rcu_read_unlock();
1026                         return c;
1027                 }
1028         }
1029
1030         rcu_read_unlock();
1031
1032         return NULL;
1033 }
1034
1035 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1036                                                        bdaddr_t *ba,
1037                                                        __u8 ba_type)
1038 {
1039         struct hci_conn_hash *h = &hdev->conn_hash;
1040         struct hci_conn  *c;
1041
1042         rcu_read_lock();
1043
1044         list_for_each_entry_rcu(c, &h->list, list) {
1045                 if (c->type != LE_LINK)
1046                        continue;
1047
1048                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1049                         rcu_read_unlock();
1050                         return c;
1051                 }
1052         }
1053
1054         rcu_read_unlock();
1055
1056         return NULL;
1057 }
1058
1059 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1060                                                         __u8 type, __u16 state)
1061 {
1062         struct hci_conn_hash *h = &hdev->conn_hash;
1063         struct hci_conn  *c;
1064
1065         rcu_read_lock();
1066
1067         list_for_each_entry_rcu(c, &h->list, list) {
1068                 if (c->type == type && c->state == state) {
1069                         rcu_read_unlock();
1070                         return c;
1071                 }
1072         }
1073
1074         rcu_read_unlock();
1075
1076         return NULL;
1077 }
1078
1079 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1080 {
1081         struct hci_conn_hash *h = &hdev->conn_hash;
1082         struct hci_conn  *c;
1083
1084         rcu_read_lock();
1085
1086         list_for_each_entry_rcu(c, &h->list, list) {
1087                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1088                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1089                         rcu_read_unlock();
1090                         return c;
1091                 }
1092         }
1093
1094         rcu_read_unlock();
1095
1096         return NULL;
1097 }
1098
1099 #ifdef TIZEN_BT
1100 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1101                                         __u8 type, bdaddr_t *ba, bool value)
1102 {
1103         struct hci_conn_hash *h = &hdev->conn_hash;
1104         struct hci_conn  *c;
1105         __u8 conn_type;
1106
1107         if (type == 0x01)
1108                 conn_type = LE_LINK;
1109         else
1110                 conn_type = ACL_LINK;
1111
1112         rcu_read_lock();
1113
1114         list_for_each_entry_rcu(c, &h->list, list) {
1115                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1116                         c->rssi_monitored = value;
1117                         rcu_read_unlock();
1118                         return true;
1119                 }
1120         }
1121
1122         rcu_read_unlock();
1123         return false;
1124 }
1125
1126 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1127                                         __u8 type)
1128 {
1129         struct hci_conn_hash *h = &hdev->conn_hash;
1130         struct hci_conn  *c;
1131         __u8 conn_type;
1132
1133         if (type == 0x01)
1134                 conn_type = LE_LINK;
1135         else
1136                 conn_type = ACL_LINK;
1137
1138         rcu_read_lock();
1139         list_for_each_entry_rcu(c, &h->list, list) {
1140                 if (c->type == conn_type)
1141                         c->rssi_monitored = false;
1142         }
1143         rcu_read_unlock();
1144 }
1145
1146 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1147 {
1148         struct hci_conn_hash *h = &hdev->conn_hash;
1149         struct hci_conn  *c;
1150         int count = 0;
1151
1152         rcu_read_lock();
1153         list_for_each_entry_rcu(c, &h->list, list) {
1154                 if (c->rssi_monitored == true)
1155                         ++count;
1156         }
1157         rcu_read_unlock();
1158
1159         return count;
1160 }
1161
1162 bool hci_le_discovery_active(struct hci_dev *hdev);
1163 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1164 #endif
1165
1166 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1167 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1168 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1169
1170 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1171                               u8 role);
1172 int hci_conn_del(struct hci_conn *conn);
1173 void hci_conn_hash_flush(struct hci_dev *hdev);
1174 void hci_conn_check_pending(struct hci_dev *hdev);
1175
1176 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1177 void hci_chan_del(struct hci_chan *chan);
1178 void hci_chan_list_flush(struct hci_conn *conn);
1179 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1180
1181 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1182                                      u8 dst_type, u8 sec_level,
1183                                      u16 conn_timeout,
1184                                      enum conn_reasons conn_reason);
1185 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1186                                 u8 dst_type, u8 sec_level, u16 conn_timeout,
1187                                 u8 role, bdaddr_t *direct_rpa);
1188 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1189                                  u8 sec_level, u8 auth_type,
1190                                  enum conn_reasons conn_reason);
1191 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1192                                  __u16 setting);
1193 int hci_conn_check_link_mode(struct hci_conn *conn);
1194 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1195 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1196                       bool initiator);
1197 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1198
1199 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1200
1201 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1202
1203 /*
1204  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1205  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1206  * working or anything else. They just guarantee that the object is available
1207  * and can be dereferenced. So you can use its locks, local variables and any
1208  * other constant data.
1209  * Before accessing runtime data, you _must_ lock the object and then check that
1210  * it is still running. As soon as you release the locks, the connection might
1211  * get dropped, though.
1212  *
1213  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1214  * how long the underlying connection is held. So every channel that runs on the
1215  * hci_conn object calls this to prevent the connection from disappearing. As
1216  * long as you hold a device, you must also guarantee that you have a valid
1217  * reference to the device via hci_conn_get() (or the initial reference from
1218  * hci_conn_add()).
1219  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1220  * break because nobody cares for that. But this means, we cannot use
1221  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1222  */
1223
1224 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1225 {
1226         get_device(&conn->dev);
1227         return conn;
1228 }
1229
1230 static inline void hci_conn_put(struct hci_conn *conn)
1231 {
1232         put_device(&conn->dev);
1233 }
1234
1235 static inline void hci_conn_hold(struct hci_conn *conn)
1236 {
1237         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1238
1239         atomic_inc(&conn->refcnt);
1240         cancel_delayed_work(&conn->disc_work);
1241 }
1242
1243 static inline void hci_conn_drop(struct hci_conn *conn)
1244 {
1245         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1246
1247         if (atomic_dec_and_test(&conn->refcnt)) {
1248                 unsigned long timeo;
1249
1250                 switch (conn->type) {
1251                 case ACL_LINK:
1252                 case LE_LINK:
1253                         cancel_delayed_work(&conn->idle_work);
1254                         if (conn->state == BT_CONNECTED) {
1255                                 timeo = conn->disc_timeout;
1256                                 if (!conn->out)
1257                                         timeo *= 2;
1258                         } else {
1259                                 timeo = 0;
1260                         }
1261                         break;
1262
1263                 case AMP_LINK:
1264                         timeo = conn->disc_timeout;
1265                         break;
1266
1267                 default:
1268                         timeo = 0;
1269                         break;
1270                 }
1271
1272                 cancel_delayed_work(&conn->disc_work);
1273                 queue_delayed_work(conn->hdev->workqueue,
1274                                    &conn->disc_work, timeo);
1275         }
1276 }
1277
1278 /* ----- HCI Devices ----- */
1279 static inline void hci_dev_put(struct hci_dev *d)
1280 {
1281         BT_DBG("%s orig refcnt %d", d->name,
1282                kref_read(&d->dev.kobj.kref));
1283
1284         put_device(&d->dev);
1285 }
1286
1287 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1288 {
1289         BT_DBG("%s orig refcnt %d", d->name,
1290                kref_read(&d->dev.kobj.kref));
1291
1292         get_device(&d->dev);
1293         return d;
1294 }
1295
1296 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1297 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1298
1299 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1300 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1301
1302 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1303 {
1304         return dev_get_drvdata(&hdev->dev);
1305 }
1306
1307 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1308 {
1309         dev_set_drvdata(&hdev->dev, data);
1310 }
1311
1312 static inline void *hci_get_priv(struct hci_dev *hdev)
1313 {
1314         return (char *)hdev + sizeof(*hdev);
1315 }
1316
1317 struct hci_dev *hci_dev_get(int index);
1318 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1319
1320 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1321
1322 static inline struct hci_dev *hci_alloc_dev(void)
1323 {
1324         return hci_alloc_dev_priv(0);
1325 }
1326
1327 void hci_free_dev(struct hci_dev *hdev);
1328 int hci_register_dev(struct hci_dev *hdev);
1329 void hci_unregister_dev(struct hci_dev *hdev);
1330 void hci_release_dev(struct hci_dev *hdev);
1331 int hci_suspend_dev(struct hci_dev *hdev);
1332 int hci_resume_dev(struct hci_dev *hdev);
1333 int hci_reset_dev(struct hci_dev *hdev);
1334 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1335 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1336 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1337 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1338
1339 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1340 {
1341 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1342         hdev->msft_opcode = opcode;
1343 #endif
1344 }
1345
1346 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1347 {
1348 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1349         hdev->aosp_capable = true;
1350 #endif
1351 }
1352
1353 int hci_dev_open(__u16 dev);
1354 int hci_dev_close(__u16 dev);
1355 int hci_dev_do_close(struct hci_dev *hdev);
1356 int hci_dev_reset(__u16 dev);
1357 int hci_dev_reset_stat(__u16 dev);
1358 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1359 int hci_get_dev_list(void __user *arg);
1360 int hci_get_dev_info(void __user *arg);
1361 int hci_get_conn_list(void __user *arg);
1362 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1363 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1364 int hci_inquiry(void __user *arg);
1365
1366 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1367                                            bdaddr_t *bdaddr, u8 type);
1368 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1369                                     struct list_head *list, bdaddr_t *bdaddr,
1370                                     u8 type);
1371 struct bdaddr_list_with_flags *
1372 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1373                                   u8 type);
1374 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1375 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1376                                  u8 type, u8 *peer_irk, u8 *local_irk);
1377 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1378                                    u8 type, u32 flags);
1379 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1380 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1381                                  u8 type);
1382 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1383                                    u8 type);
1384 void hci_bdaddr_list_clear(struct list_head *list);
1385
1386 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1387                                                bdaddr_t *addr, u8 addr_type);
1388 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1389                                             bdaddr_t *addr, u8 addr_type);
1390 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1391 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1392
1393 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1394                                                   bdaddr_t *addr,
1395                                                   u8 addr_type);
1396
1397 void hci_uuids_clear(struct hci_dev *hdev);
1398
1399 void hci_link_keys_clear(struct hci_dev *hdev);
1400 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1401 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1402                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1403                                   u8 pin_len, bool *persistent);
1404 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1405                             u8 addr_type, u8 type, u8 authenticated,
1406                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1407 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1408                              u8 addr_type, u8 role);
1409 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1410 void hci_smp_ltks_clear(struct hci_dev *hdev);
1411 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1412
1413 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1414 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1415                                      u8 addr_type);
1416 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1417                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1418 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1419 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1420 void hci_blocked_keys_clear(struct hci_dev *hdev);
1421 void hci_smp_irks_clear(struct hci_dev *hdev);
1422
1423 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1424
1425 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1426 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1427                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1428 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1429                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1430                             u8 *hash256, u8 *rand256);
1431 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1432                                u8 bdaddr_type);
1433
1434 void hci_adv_instances_clear(struct hci_dev *hdev);
1435 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1436 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1437 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1438                          u16 adv_data_len, u8 *adv_data,
1439                          u16 scan_rsp_len, u8 *scan_rsp_data,
1440                          u16 timeout, u16 duration, s8 tx_power,
1441                          u32 min_interval, u32 max_interval);
1442 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1443                          u16 adv_data_len, u8 *adv_data,
1444                          u16 scan_rsp_len, u8 *scan_rsp_data);
1445 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1446 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1447
1448 void hci_adv_monitors_clear(struct hci_dev *hdev);
1449 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1450 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1451 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1452 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
1453                         int *err);
1454 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
1455 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
1456 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1457 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1458
1459 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1460
1461 void hci_init_sysfs(struct hci_dev *hdev);
1462 void hci_conn_init_sysfs(struct hci_conn *conn);
1463 void hci_conn_add_sysfs(struct hci_conn *conn);
1464 void hci_conn_del_sysfs(struct hci_conn *conn);
1465
1466 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1467
1468 /* ----- LMP capabilities ----- */
1469 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1470 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1471 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1472 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1473 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1474 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1475 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1476 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1477 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1478 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1479 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1480 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1481 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1482 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1483 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1484 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1485 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1486 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1487 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1488 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1489 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1490 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1491 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1492 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1493
1494 /* ----- Extended LMP capabilities ----- */
1495 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1496 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1497 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1498 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1499 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1500 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1501
1502 /* ----- Host capabilities ----- */
1503 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1504 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1505 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1506 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1507
1508 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1509                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1510 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1511                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1512 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1513                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1514 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1515                                 !adv->rpa_expired)
1516
1517 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1518                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1519
1520 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1521                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1522
1523 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1524                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1525
1526 /* Use LL Privacy based address resolution if supported */
1527 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1528
1529 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1530 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1531                            ((dev)->commands[37] & 0x40))
1532 /* Use ext create connection if command is supported */
1533 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1534
1535 /* Extended advertising support */
1536 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1537
1538 /* ----- HCI protocols ----- */
1539 #define HCI_PROTO_DEFER             0x01
1540
1541 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1542                                         __u8 type, __u8 *flags)
1543 {
1544         switch (type) {
1545         case ACL_LINK:
1546                 return l2cap_connect_ind(hdev, bdaddr);
1547
1548         case SCO_LINK:
1549         case ESCO_LINK:
1550                 return sco_connect_ind(hdev, bdaddr, flags);
1551
1552         default:
1553                 BT_ERR("unknown link type %d", type);
1554                 return -EINVAL;
1555         }
1556 }
1557
1558 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1559 {
1560         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1561                 return HCI_ERROR_REMOTE_USER_TERM;
1562
1563         return l2cap_disconn_ind(conn);
1564 }
1565
1566 /* ----- HCI callbacks ----- */
1567 struct hci_cb {
1568         struct list_head list;
1569
1570         char *name;
1571
1572         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1573         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1574         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1575                                                                 __u8 encrypt);
1576         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1577         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1578 };
1579
1580 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1581 {
1582         struct hci_cb *cb;
1583
1584         mutex_lock(&hci_cb_list_lock);
1585         list_for_each_entry(cb, &hci_cb_list, list) {
1586                 if (cb->connect_cfm)
1587                         cb->connect_cfm(conn, status);
1588         }
1589         mutex_unlock(&hci_cb_list_lock);
1590
1591         if (conn->connect_cfm_cb)
1592                 conn->connect_cfm_cb(conn, status);
1593 }
1594
1595 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1596 {
1597         struct hci_cb *cb;
1598
1599         mutex_lock(&hci_cb_list_lock);
1600         list_for_each_entry(cb, &hci_cb_list, list) {
1601                 if (cb->disconn_cfm)
1602                         cb->disconn_cfm(conn, reason);
1603         }
1604         mutex_unlock(&hci_cb_list_lock);
1605
1606         if (conn->disconn_cfm_cb)
1607                 conn->disconn_cfm_cb(conn, reason);
1608 }
1609
1610 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1611 {
1612         struct hci_cb *cb;
1613         __u8 encrypt;
1614
1615         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1616                 return;
1617
1618         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1619
1620         mutex_lock(&hci_cb_list_lock);
1621         list_for_each_entry(cb, &hci_cb_list, list) {
1622                 if (cb->security_cfm)
1623                         cb->security_cfm(conn, status, encrypt);
1624         }
1625         mutex_unlock(&hci_cb_list_lock);
1626
1627         if (conn->security_cfm_cb)
1628                 conn->security_cfm_cb(conn, status);
1629 }
1630
1631 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1632 {
1633         struct hci_cb *cb;
1634         __u8 encrypt;
1635
1636         if (conn->state == BT_CONFIG) {
1637                 if (!status)
1638                         conn->state = BT_CONNECTED;
1639
1640                 hci_connect_cfm(conn, status);
1641                 hci_conn_drop(conn);
1642                 return;
1643         }
1644
1645         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1646                 encrypt = 0x00;
1647         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1648                 encrypt = 0x02;
1649         else
1650                 encrypt = 0x01;
1651
1652         if (!status) {
1653                 if (conn->sec_level == BT_SECURITY_SDP)
1654                         conn->sec_level = BT_SECURITY_LOW;
1655
1656                 if (conn->pending_sec_level > conn->sec_level)
1657                         conn->sec_level = conn->pending_sec_level;
1658         }
1659
1660         mutex_lock(&hci_cb_list_lock);
1661         list_for_each_entry(cb, &hci_cb_list, list) {
1662                 if (cb->security_cfm)
1663                         cb->security_cfm(conn, status, encrypt);
1664         }
1665         mutex_unlock(&hci_cb_list_lock);
1666
1667         if (conn->security_cfm_cb)
1668                 conn->security_cfm_cb(conn, status);
1669 }
1670
1671 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1672 {
1673         struct hci_cb *cb;
1674
1675         mutex_lock(&hci_cb_list_lock);
1676         list_for_each_entry(cb, &hci_cb_list, list) {
1677                 if (cb->key_change_cfm)
1678                         cb->key_change_cfm(conn, status);
1679         }
1680         mutex_unlock(&hci_cb_list_lock);
1681 }
1682
1683 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1684                                                                 __u8 role)
1685 {
1686         struct hci_cb *cb;
1687
1688         mutex_lock(&hci_cb_list_lock);
1689         list_for_each_entry(cb, &hci_cb_list, list) {
1690                 if (cb->role_switch_cfm)
1691                         cb->role_switch_cfm(conn, status, role);
1692         }
1693         mutex_unlock(&hci_cb_list_lock);
1694 }
1695
1696 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1697                                  size_t *data_len)
1698 {
1699         size_t parsed = 0;
1700
1701         if (eir_len < 2)
1702                 return NULL;
1703
1704         while (parsed < eir_len - 1) {
1705                 u8 field_len = eir[0];
1706
1707                 if (field_len == 0)
1708                         break;
1709
1710                 parsed += field_len + 1;
1711
1712                 if (parsed > eir_len)
1713                         break;
1714
1715                 if (eir[1] != type) {
1716                         eir += field_len + 1;
1717                         continue;
1718                 }
1719
1720                 /* Zero length data */
1721                 if (field_len == 1)
1722                         return NULL;
1723
1724                 if (data_len)
1725                         *data_len = field_len - 1;
1726
1727                 return &eir[2];
1728         }
1729
1730         return NULL;
1731 }
1732
1733 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1734 {
1735         if (addr_type != ADDR_LE_DEV_RANDOM)
1736                 return false;
1737
1738         if ((bdaddr->b[5] & 0xc0) == 0x40)
1739                return true;
1740
1741         return false;
1742 }
1743
1744 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1745 {
1746         if (addr_type == ADDR_LE_DEV_PUBLIC)
1747                 return true;
1748
1749         /* Check for Random Static address type */
1750         if ((addr->b[5] & 0xc0) == 0xc0)
1751                 return true;
1752
1753         return false;
1754 }
1755
1756 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1757                                           bdaddr_t *bdaddr, u8 addr_type)
1758 {
1759         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1760                 return NULL;
1761
1762         return hci_find_irk_by_rpa(hdev, bdaddr);
1763 }
1764
1765 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1766                                         u16 to_multiplier)
1767 {
1768         u16 max_latency;
1769
1770         if (min > max || min < 6 || max > 3200)
1771                 return -EINVAL;
1772
1773         if (to_multiplier < 10 || to_multiplier > 3200)
1774                 return -EINVAL;
1775
1776         if (max >= to_multiplier * 8)
1777                 return -EINVAL;
1778
1779         max_latency = (to_multiplier * 4 / max) - 1;
1780         if (latency > 499 || latency > max_latency)
1781                 return -EINVAL;
1782
1783         return 0;
1784 }
1785
1786 int hci_register_cb(struct hci_cb *hcb);
1787 int hci_unregister_cb(struct hci_cb *hcb);
1788
1789 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1790                                const void *param, u32 timeout);
1791 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1792                                   const void *param, u8 event, u32 timeout);
1793 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1794                    const void *param);
1795
1796 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1797                  const void *param);
1798 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1799 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1800
1801 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1802
1803 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1804                              const void *param, u32 timeout);
1805
1806 u32 hci_conn_get_phy(struct hci_conn *conn);
1807
1808 /* ----- HCI Sockets ----- */
1809 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1810 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1811                          int flag, struct sock *skip_sk);
1812 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1813 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1814                                  void *data, u16 data_len, ktime_t tstamp,
1815                                  int flag, struct sock *skip_sk);
1816
1817 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1818
1819 #define HCI_MGMT_VAR_LEN        BIT(0)
1820 #define HCI_MGMT_NO_HDEV        BIT(1)
1821 #define HCI_MGMT_UNTRUSTED      BIT(2)
1822 #define HCI_MGMT_UNCONFIGURED   BIT(3)
1823 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
1824
1825 struct hci_mgmt_handler {
1826         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1827                      u16 data_len);
1828         size_t data_len;
1829         unsigned long flags;
1830 };
1831
1832 struct hci_mgmt_chan {
1833         struct list_head list;
1834         unsigned short channel;
1835         size_t handler_count;
1836         const struct hci_mgmt_handler *handlers;
1837 #ifdef TIZEN_BT
1838         size_t tizen_handler_count;
1839         const struct hci_mgmt_handler *tizen_handlers;
1840 #endif
1841         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1842 };
1843
1844 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1845 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1846
1847 /* Management interface */
1848 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1849 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1850                                          BIT(BDADDR_LE_RANDOM))
1851 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1852                                          BIT(BDADDR_LE_PUBLIC) | \
1853                                          BIT(BDADDR_LE_RANDOM))
1854
1855 /* These LE scan and inquiry parameters were chosen according to LE General
1856  * Discovery Procedure specification.
1857  */
1858 #define DISCOV_LE_SCAN_WIN              0x12
1859 #define DISCOV_LE_SCAN_INT              0x12
1860 #define DISCOV_LE_TIMEOUT               10240   /* msec */
1861 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
1862 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1863 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1864 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
1865 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
1866 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
1867
1868 void mgmt_fill_version_info(void *ver);
1869 int mgmt_new_settings(struct hci_dev *hdev);
1870 void mgmt_index_added(struct hci_dev *hdev);
1871 void mgmt_index_removed(struct hci_dev *hdev);
1872 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1873 void mgmt_power_on(struct hci_dev *hdev, int err);
1874 void __mgmt_power_off(struct hci_dev *hdev);
1875 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1876                        bool persistent);
1877 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1878                            u8 *name, u8 name_len);
1879 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1880                               u8 link_type, u8 addr_type, u8 reason,
1881                               bool mgmt_connected);
1882 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1883                             u8 link_type, u8 addr_type, u8 status);
1884 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1885                          u8 addr_type, u8 status);
1886 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1887 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1888                                   u8 status);
1889 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1890                                       u8 status);
1891 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1892                               u8 link_type, u8 addr_type, u32 value,
1893                               u8 confirm_hint);
1894 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1895                                      u8 link_type, u8 addr_type, u8 status);
1896 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1897                                          u8 link_type, u8 addr_type, u8 status);
1898 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1899                               u8 link_type, u8 addr_type);
1900 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1901                                      u8 link_type, u8 addr_type, u8 status);
1902 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1903                                          u8 link_type, u8 addr_type, u8 status);
1904 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1905                              u8 link_type, u8 addr_type, u32 passkey,
1906                              u8 entered);
1907 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1908 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1909 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1910 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1911                                     u8 status);
1912 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1913 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1914 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1915 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1916                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1917                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1918 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1919                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1920 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1921 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1922 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1923                    u8 addr_type);
1924 bool mgmt_powering_down(struct hci_dev *hdev);
1925 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1926 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1927 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1928                    bool persistent);
1929 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1930                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
1931                          u16 max_interval, u16 latency, u16 timeout);
1932 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1933 bool mgmt_get_connectable(struct hci_dev *hdev);
1934 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1935 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1936 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1937 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1938                             u8 instance);
1939 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1940                               u8 instance);
1941 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
1942 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1943 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1944 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1945
1946 #ifdef TIZEN_BT
1947 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
1948                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1949 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
1950                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1951 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
1952                 void *data, u16 len);
1953 void mgmt_rssi_alert_evt(struct hci_dev *hdev, u16 conn_handle,
1954                 s8 alert_type, s8 rssi_dbm);
1955 void mgmt_raw_rssi_response(struct hci_dev *hdev,
1956                 struct hci_cc_rp_get_raw_rssi *rp, int success);
1957 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
1958 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
1959                 u8 name_len);
1960 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
1961 int mgmt_le_conn_updated(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
1962                 u8 dst_type, u16 conn_interval, u16 conn_latency,
1963                 u16 supervision_timeout);
1964 int mgmt_le_conn_update_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1965                 u8 link_type, u8 addr_type, u8 status);
1966 void mgmt_hardware_error(struct hci_dev *hdev, u8 err_code);
1967 void mgmt_tx_timeout_error(struct hci_dev *hdev);
1968 /*  Pass adv type in the le device found */
1969 void mgmt_le_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1970                 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir,
1971                 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, u8 adv_type);
1972 void mgmt_multi_adv_state_change_evt(struct hci_dev *hdev, u8 adv_instance,
1973                 u8 state_change_reason, u16 connection_handle);
1974 #endif
1975
1976 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1977                       u16 to_multiplier);
1978 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1979                       __u8 ltk[16], __u8 key_size);
1980
1981 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1982                                u8 *bdaddr_type);
1983
1984 #define SCO_AIRMODE_MASK       0x0003
1985 #define SCO_AIRMODE_CVSD       0x0000
1986 #define SCO_AIRMODE_TRANSP     0x0003
1987
1988 #endif /* __HCI_CORE_H */