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 maximum id value */
  39 #define HCI_MAX_ID 10000
  40
  41 /* HCI Core structures */
  42 struct inquiry_data {
  43         bdaddr_t        bdaddr;
  44         __u8            pscan_rep_mode;
  45         __u8            pscan_period_mode;
  46         __u8            pscan_mode;
  47         __u8            dev_class[3];
  48         __le16          clock_offset;
  49         __s8            rssi;
  50         __u8            ssp_mode;
  51 };
  52
  53 struct inquiry_entry {
  54         struct list_head        all;            /* inq_cache.all */
  55         struct list_head        list;           /* unknown or resolve */
  56         enum {
  57                 NAME_NOT_KNOWN,
  58                 NAME_NEEDED,
  59                 NAME_PENDING,
  60                 NAME_KNOWN,
  61         } name_state;
  62         __u32                   timestamp;
  63         struct inquiry_data     data;
  64 };
  65
  66 struct discovery_state {
  67         int                     type;
  68         enum {
  69                 DISCOVERY_STOPPED,
  70                 DISCOVERY_STARTING,
  71                 DISCOVERY_FINDING,
  72                 DISCOVERY_RESOLVING,
  73                 DISCOVERY_STOPPING,
  74         } state;
  75         struct list_head        all;    /* All devices found during inquiry */
  76         struct list_head        unknown;        /* Name state not known */
  77         struct list_head        resolve;        /* Name needs to be resolved */
  78         __u32                   timestamp;
  79         bdaddr_t                last_adv_addr;
  80         u8                      last_adv_addr_type;
  81         s8                      last_adv_rssi;
  82         u32                     last_adv_flags;
  83         u8                      last_adv_data[HCI_MAX_AD_LENGTH];
  84         u8                      last_adv_data_len;
  85         bool                    report_invalid_rssi;
  86         bool                    result_filtering;
  87         bool                    limited;
  88         s8                      rssi;
  89         u16                     uuid_count;
  90         u8                      (*uuids)[16];
  91         unsigned long           scan_start;
  92         unsigned long           scan_duration;
  93 };
  94
  95 #define SUSPEND_NOTIFIER_TIMEOUT        msecs_to_jiffies(2000) /* 2 seconds */
  96
  97 enum suspend_tasks {
  98         SUSPEND_PAUSE_DISCOVERY,
  99         SUSPEND_UNPAUSE_DISCOVERY,
 100
 101         SUSPEND_PAUSE_ADVERTISING,
 102         SUSPEND_UNPAUSE_ADVERTISING,
 103
 104         SUSPEND_SCAN_DISABLE,
 105         SUSPEND_SCAN_ENABLE,
 106         SUSPEND_DISCONNECTING,
 107
 108         SUSPEND_POWERING_DOWN,
 109
 110         SUSPEND_PREPARE_NOTIFIER,
 111
 112         SUSPEND_SET_ADV_FILTER,
 113         __SUSPEND_NUM_TASKS
 114 };
 115
 116 enum suspended_state {
 117         BT_RUNNING = 0,
 118         BT_SUSPEND_DISCONNECT,
 119         BT_SUSPEND_CONFIGURE_WAKE,
 120 };
 121
 122 struct hci_conn_hash {
 123         struct list_head list;
 124         unsigned int     acl_num;
 125         unsigned int     amp_num;
 126         unsigned int     sco_num;
 127         unsigned int     le_num;
 128         unsigned int     le_num_peripheral;
 129 };
 130
 131 struct bdaddr_list {
 132         struct list_head list;
 133         bdaddr_t bdaddr;
 134         u8 bdaddr_type;
 135 };
 136
 137 struct bdaddr_list_with_irk {
 138         struct list_head list;
 139         bdaddr_t bdaddr;
 140         u8 bdaddr_type;
 141         u8 peer_irk[16];
 142         u8 local_irk[16];
 143 };
 144
 145 struct bdaddr_list_with_flags {
 146         struct list_head list;
 147         bdaddr_t bdaddr;
 148         u8 bdaddr_type;
 149         u32 current_flags;
 150 };
 151
 152 enum hci_conn_flags {
 153         HCI_CONN_FLAG_REMOTE_WAKEUP,
 154         HCI_CONN_FLAG_MAX
 155 };
 156
 157 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
 158
 159 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
 160 static_assert(HCI_CONN_FLAG_MAX < 32);
 161
 162 struct bt_uuid {
 163         struct list_head list;
 164         u8 uuid[16];
 165         u8 size;
 166         u8 svc_hint;
 167 };
 168
 169 struct blocked_key {
 170         struct list_head list;
 171         struct rcu_head rcu;
 172         u8 type;
 173         u8 val[16];
 174 };
 175
 176 struct smp_csrk {
 177         bdaddr_t bdaddr;
 178         u8 bdaddr_type;
 179         u8 type;
 180         u8 val[16];
 181 };
 182
 183 struct smp_ltk {
 184         struct list_head list;
 185         struct rcu_head rcu;
 186         bdaddr_t bdaddr;
 187         u8 bdaddr_type;
 188         u8 authenticated;
 189         u8 type;
 190         u8 enc_size;
 191         __le16 ediv;
 192         __le64 rand;
 193         u8 val[16];
 194 };
 195
 196 struct smp_irk {
 197         struct list_head list;
 198         struct rcu_head rcu;
 199         bdaddr_t rpa;
 200         bdaddr_t bdaddr;
 201         u8 addr_type;
 202         u8 val[16];
 203 };
 204
 205 struct link_key {
 206         struct list_head list;
 207         struct rcu_head rcu;
 208         bdaddr_t bdaddr;
 209         u8 type;
 210         u8 val[HCI_LINK_KEY_SIZE];
 211         u8 pin_len;
 212 };
 213
 214 struct oob_data {
 215         struct list_head list;
 216         bdaddr_t bdaddr;
 217         u8 bdaddr_type;
 218         u8 present;
 219         u8 hash192[16];
 220         u8 rand192[16];
 221         u8 hash256[16];
 222         u8 rand256[16];
 223 };
 224
 225 struct adv_info {
 226         struct list_head list;
 227         bool enabled;
 228         bool pending;
 229         __u8    instance;
 230         __u32   flags;
 231         __u16   timeout;
 232         __u16   remaining_time;
 233         __u16   duration;
 234         __u16   adv_data_len;
 235         __u8    adv_data[HCI_MAX_EXT_AD_LENGTH];
 236         __u16   scan_rsp_len;
 237         __u8    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 238         __s8    tx_power;
 239         __u32   min_interval;
 240         __u32   max_interval;
 241         bdaddr_t        random_addr;
 242         bool            rpa_expired;
 243         struct delayed_work     rpa_expired_cb;
 244 };
 245
 246 #define HCI_MAX_ADV_INSTANCES           5
 247 #define HCI_DEFAULT_ADV_DURATION        2
 248
 249 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 250
 251 struct adv_pattern {
 252         struct list_head list;
 253         __u8 ad_type;
 254         __u8 offset;
 255         __u8 length;
 256         __u8 value[HCI_MAX_AD_LENGTH];
 257 };
 258
 259 struct adv_rssi_thresholds {
 260         __s8 low_threshold;
 261         __s8 high_threshold;
 262         __u16 low_threshold_timeout;
 263         __u16 high_threshold_timeout;
 264         __u8 sampling_period;
 265 };
 266
 267 struct adv_monitor {
 268         struct list_head patterns;
 269         struct adv_rssi_thresholds rssi;
 270         __u16           handle;
 271
 272         enum {
 273                 ADV_MONITOR_STATE_NOT_REGISTERED,
 274                 ADV_MONITOR_STATE_REGISTERED,
 275                 ADV_MONITOR_STATE_OFFLOADED
 276         } state;
 277 };
 278
 279 #define HCI_MIN_ADV_MONITOR_HANDLE              1
 280 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES         32
 281 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS        16
 282 #define HCI_ADV_MONITOR_EXT_NONE                1
 283 #define HCI_ADV_MONITOR_EXT_MSFT                2
 284
 285 #define HCI_MAX_SHORT_NAME_LENGTH       10
 286
 287 /* Min encryption key size to match with SMP */
 288 #define HCI_MIN_ENC_KEY_SIZE            7
 289
 290 /* Default LE RPA expiry time, 15 minutes */
 291 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 292
 293 /* Default min/max age of connection information (1s/3s) */
 294 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 295 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 296 /* Default authenticated payload timeout 30s */
 297 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 298
 299 struct amp_assoc {
 300         __u16   len;
 301         __u16   offset;
 302         __u16   rem_len;
 303         __u16   len_so_far;
 304         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 305 };
 306
 307 #define HCI_MAX_PAGES   3
 308
 309 struct hci_dev {
 310         struct list_head list;
 311         struct mutex    lock;
 312
 313         char            name[8];
 314         unsigned long   flags;
 315         __u16           id;
 316         __u8            bus;
 317         __u8            dev_type;
 318         bdaddr_t        bdaddr;
 319         bdaddr_t        setup_addr;
 320         bdaddr_t        public_addr;
 321         bdaddr_t        random_addr;
 322         bdaddr_t        static_addr;
 323         __u8            adv_addr_type;
 324         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 325         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 326         __u8            eir[HCI_MAX_EIR_LENGTH];
 327         __u16           appearance;
 328         __u8            dev_class[3];
 329         __u8            major_class;
 330         __u8            minor_class;
 331         __u8            max_page;
 332         __u8            features[HCI_MAX_PAGES][8];
 333         __u8            le_features[8];
 334         __u8            le_accept_list_size;
 335         __u8            le_resolv_list_size;
 336         __u8            le_num_of_adv_sets;
 337         __u8            le_states[8];
 338         __u8            commands[64];
 339         __u8            hci_ver;
 340         __u16           hci_rev;
 341         __u8            lmp_ver;
 342         __u16           manufacturer;
 343         __u16           lmp_subver;
 344         __u16           voice_setting;
 345         __u8            num_iac;
 346         __u8            stored_max_keys;
 347         __u8            stored_num_keys;
 348         __u8            io_capability;
 349         __s8            inq_tx_power;
 350         __u8            err_data_reporting;
 351         __u16           page_scan_interval;
 352         __u16           page_scan_window;
 353         __u8            page_scan_type;
 354         __u8            le_adv_channel_map;
 355         __u16           le_adv_min_interval;
 356         __u16           le_adv_max_interval;
 357         __u8            le_scan_type;
 358         __u16           le_scan_interval;
 359         __u16           le_scan_window;
 360         __u16           le_scan_int_suspend;
 361         __u16           le_scan_window_suspend;
 362         __u16           le_scan_int_discovery;
 363         __u16           le_scan_window_discovery;
 364         __u16           le_scan_int_adv_monitor;
 365         __u16           le_scan_window_adv_monitor;
 366         __u16           le_scan_int_connect;
 367         __u16           le_scan_window_connect;
 368         __u16           le_conn_min_interval;
 369         __u16           le_conn_max_interval;
 370         __u16           le_conn_latency;
 371         __u16           le_supv_timeout;
 372         __u16           le_def_tx_len;
 373         __u16           le_def_tx_time;
 374         __u16           le_max_tx_len;
 375         __u16           le_max_tx_time;
 376         __u16           le_max_rx_len;
 377         __u16           le_max_rx_time;
 378         __u8            le_max_key_size;
 379         __u8            le_min_key_size;
 380         __u16           discov_interleaved_timeout;
 381         __u16           conn_info_min_age;
 382         __u16           conn_info_max_age;
 383         __u16           auth_payload_timeout;
 384         __u8            min_enc_key_size;
 385         __u8            max_enc_key_size;
 386         __u8            pairing_opts;
 387         __u8            ssp_debug_mode;
 388         __u8            hw_error_code;
 389         __u32           clock;
 390         __u16           advmon_allowlist_duration;
 391         __u16           advmon_no_filter_duration;
 392         __u8            enable_advmon_interleave_scan;
 393
 394         __u16           devid_source;
 395         __u16           devid_vendor;
 396         __u16           devid_product;
 397         __u16           devid_version;
 398
 399         __u8            def_page_scan_type;
 400         __u16           def_page_scan_int;
 401         __u16           def_page_scan_window;
 402         __u8            def_inq_scan_type;
 403         __u16           def_inq_scan_int;
 404         __u16           def_inq_scan_window;
 405         __u16           def_br_lsto;
 406         __u16           def_page_timeout;
 407         __u16           def_multi_adv_rotation_duration;
 408         __u16           def_le_autoconnect_timeout;
 409         __s8            min_le_tx_power;
 410         __s8            max_le_tx_power;
 411
 412         __u16           pkt_type;
 413         __u16           esco_type;
 414         __u16           link_policy;
 415         __u16           link_mode;
 416
 417         __u32           idle_timeout;
 418         __u16           sniff_min_interval;
 419         __u16           sniff_max_interval;
 420
 421         __u8            amp_status;
 422         __u32           amp_total_bw;
 423         __u32           amp_max_bw;
 424         __u32           amp_min_latency;
 425         __u32           amp_max_pdu;
 426         __u8            amp_type;
 427         __u16           amp_pal_cap;
 428         __u16           amp_assoc_size;
 429         __u32           amp_max_flush_to;
 430         __u32           amp_be_flush_to;
 431
 432         struct amp_assoc        loc_assoc;
 433
 434         __u8            flow_ctl_mode;
 435
 436         unsigned int    auto_accept_delay;
 437
 438         unsigned long   quirks;
 439
 440         atomic_t        cmd_cnt;
 441         unsigned int    acl_cnt;
 442         unsigned int    sco_cnt;
 443         unsigned int    le_cnt;
 444
 445         unsigned int    acl_mtu;
 446         unsigned int    sco_mtu;
 447         unsigned int    le_mtu;
 448         unsigned int    acl_pkts;
 449         unsigned int    sco_pkts;
 450         unsigned int    le_pkts;
 451
 452         __u16           block_len;
 453         __u16           block_mtu;
 454         __u16           num_blocks;
 455         __u16           block_cnt;
 456
 457         unsigned long   acl_last_tx;
 458         unsigned long   sco_last_tx;
 459         unsigned long   le_last_tx;
 460
 461         __u8            le_tx_def_phys;
 462         __u8            le_rx_def_phys;
 463
 464         struct workqueue_struct *workqueue;
 465         struct workqueue_struct *req_workqueue;
 466
 467         struct work_struct      power_on;
 468         struct delayed_work     power_off;
 469         struct work_struct      error_reset;
 470
 471         __u16                   discov_timeout;
 472         struct delayed_work     discov_off;
 473
 474         struct delayed_work     service_cache;
 475
 476         struct delayed_work     cmd_timer;
 477         struct delayed_work     ncmd_timer;
 478
 479         struct work_struct      rx_work;
 480         struct work_struct      cmd_work;
 481         struct work_struct      tx_work;
 482
 483         struct work_struct      discov_update;
 484         struct work_struct      bg_scan_update;
 485         struct work_struct      scan_update;
 486         struct work_struct      connectable_update;
 487         struct work_struct      discoverable_update;
 488         struct delayed_work     le_scan_disable;
 489         struct delayed_work     le_scan_restart;
 490
 491         struct sk_buff_head     rx_q;
 492         struct sk_buff_head     raw_q;
 493         struct sk_buff_head     cmd_q;
 494
 495         struct sk_buff          *sent_cmd;
 496
 497         struct mutex            req_lock;
 498         wait_queue_head_t       req_wait_q;
 499         __u32                   req_status;
 500         __u32                   req_result;
 501         struct sk_buff          *req_skb;
 502
 503         void                    *smp_data;
 504         void                    *smp_bredr_data;
 505
 506         struct discovery_state  discovery;
 507
 508         int                     discovery_old_state;
 509         bool                    discovery_paused;
 510         int                     advertising_old_state;
 511         bool                    advertising_paused;
 512
 513         struct notifier_block   suspend_notifier;
 514         struct work_struct      suspend_prepare;
 515         enum suspended_state    suspend_state_next;
 516         enum suspended_state    suspend_state;
 517         bool                    scanning_paused;
 518         bool                    suspended;
 519         u8                      wake_reason;
 520         bdaddr_t                wake_addr;
 521         u8                      wake_addr_type;
 522
 523         wait_queue_head_t       suspend_wait_q;
 524         DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
 525
 526 #ifdef TIZEN_BT
 527         struct discovery_state  le_discovery;
 528 #endif
 529         struct hci_conn_hash    conn_hash;
 530
 531         struct list_head        mgmt_pending;
 532         struct list_head        reject_list;
 533         struct list_head        accept_list;
 534         struct list_head        uuids;
 535         struct list_head        link_keys;
 536         struct list_head        long_term_keys;
 537         struct list_head        identity_resolving_keys;
 538         struct list_head        remote_oob_data;
 539         struct list_head        le_accept_list;
 540         struct list_head        le_resolv_list;
 541         struct list_head        le_conn_params;
 542         struct list_head        pend_le_conns;
 543         struct list_head        pend_le_reports;
 544         struct list_head        blocked_keys;
 545
 546         struct hci_dev_stats    stat;
 547
 548         atomic_t                promisc;
 549
 550         const char              *hw_info;
 551         const char              *fw_info;
 552         struct dentry           *debugfs;
 553
 554         struct device           dev;
 555
 556         struct rfkill           *rfkill;
 557
 558         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 559
 560         __s8                    adv_tx_power;
 561         __u8                    adv_data[HCI_MAX_EXT_AD_LENGTH];
 562         __u8                    adv_data_len;
 563         __u8                    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 564         __u8                    scan_rsp_data_len;
 565
 566         struct list_head        adv_instances;
 567         unsigned int            adv_instance_cnt;
 568         __u8                    cur_adv_instance;
 569         __u16                   adv_instance_timeout;
 570         struct delayed_work     adv_instance_expire;
 571
 572         struct idr              adv_monitors_idr;
 573         unsigned int            adv_monitors_cnt;
 574
 575         __u8                    irk[16];
 576         __u32                   rpa_timeout;
 577         struct delayed_work     rpa_expired;
 578         bdaddr_t                rpa;
 579
 580         enum {
 581                 INTERLEAVE_SCAN_NONE,
 582                 INTERLEAVE_SCAN_NO_FILTER,
 583                 INTERLEAVE_SCAN_ALLOWLIST
 584         } interleave_scan_state;
 585
 586         struct delayed_work     interleave_scan;
 587
 588 #if IS_ENABLED(CONFIG_BT_LEDS)
 589         struct led_trigger      *power_led;
 590 #endif
 591
 592 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
 593         __u16                   msft_opcode;
 594         void                    *msft_data;
 595         bool                    msft_curve_validity;
 596 #endif
 597
 598 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
 599         bool                    aosp_capable;
 600 #endif
 601
 602 #ifdef TIZEN_BT
 603         __u8                    adv_filter_policy;
 604         __u8                    adv_type;
 605 #endif
 606
 607         int (*open)(struct hci_dev *hdev);
 608         int (*close)(struct hci_dev *hdev);
 609         int (*flush)(struct hci_dev *hdev);
 610         int (*setup)(struct hci_dev *hdev);
 611         int (*shutdown)(struct hci_dev *hdev);
 612         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 613         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 614         void (*hw_error)(struct hci_dev *hdev, u8 code);
 615         int (*post_init)(struct hci_dev *hdev);
 616         int (*set_diag)(struct hci_dev *hdev, bool enable);
 617         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 618         void (*cmd_timeout)(struct hci_dev *hdev);
 619         bool (*prevent_wake)(struct hci_dev *hdev);
 620 };
 621
 622 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 623
 624 enum conn_reasons {
 625         CONN_REASON_PAIR_DEVICE,
 626         CONN_REASON_L2CAP_CHAN,
 627         CONN_REASON_SCO_CONNECT,
 628 };
 629
 630 struct hci_conn {
 631         struct list_head list;
 632
 633         atomic_t        refcnt;
 634
 635         bdaddr_t        dst;
 636         __u8            dst_type;
 637         bdaddr_t        src;
 638         __u8            src_type;
 639         bdaddr_t        init_addr;
 640         __u8            init_addr_type;
 641         bdaddr_t        resp_addr;
 642         __u8            resp_addr_type;
 643         __u8            adv_instance;
 644         __u16           handle;
 645         __u16           state;
 646         __u8            mode;
 647         __u8            type;
 648         __u8            role;
 649         bool            out;
 650         __u8            attempt;
 651         __u8            dev_class[3];
 652         __u8            features[HCI_MAX_PAGES][8];
 653         __u16           pkt_type;
 654         __u16           link_policy;
 655         __u8            key_type;
 656         __u8            auth_type;
 657         __u8            sec_level;
 658         __u8            pending_sec_level;
 659         __u8            pin_length;
 660         __u8            enc_key_size;
 661         __u8            io_capability;
 662         __u32           passkey_notify;
 663         __u8            passkey_entered;
 664         __u16           disc_timeout;
 665         __u16           conn_timeout;
 666         __u16           setting;
 667         __u16           auth_payload_timeout;
 668         __u16           le_conn_min_interval;
 669         __u16           le_conn_max_interval;
 670         __u16           le_conn_interval;
 671         __u16           le_conn_latency;
 672         __u16           le_supv_timeout;
 673         __u8            le_adv_data[HCI_MAX_AD_LENGTH];
 674         __u8            le_adv_data_len;
 675         __u8            le_tx_phy;
 676         __u8            le_rx_phy;
 677         __s8            rssi;
 678         __s8            tx_power;
 679         __s8            max_tx_power;
 680         unsigned long   flags;
 681
 682         enum conn_reasons conn_reason;
 683
 684         __u32           clock;
 685         __u16           clock_accuracy;
 686
 687         unsigned long   conn_info_timestamp;
 688
 689         __u8            remote_cap;
 690         __u8            remote_auth;
 691         __u8            remote_id;
 692
 693         unsigned int    sent;
 694
 695         struct sk_buff_head data_q;
 696         struct list_head chan_list;
 697
 698         struct delayed_work disc_work;
 699         struct delayed_work auto_accept_work;
 700         struct delayed_work idle_work;
 701         struct delayed_work le_conn_timeout;
 702         struct work_struct  le_scan_cleanup;
 703
 704         struct device   dev;
 705         struct dentry   *debugfs;
 706
 707         struct hci_dev  *hdev;
 708         void            *l2cap_data;
 709         void            *sco_data;
 710         struct amp_mgr  *amp_mgr;
 711
 712 #ifdef TIZEN_BT
 713         bool            rssi_monitored;
 714 #endif
 715         struct hci_conn *link;
 716
 717         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 718         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 719         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 720 };
 721
 722 struct hci_chan {
 723         struct list_head list;
 724         __u16 handle;
 725         struct hci_conn *conn;
 726         struct sk_buff_head data_q;
 727         unsigned int    sent;
 728         __u8            state;
 729         bool            amp;
 730 };
 731
 732 struct hci_conn_params {
 733         struct list_head list;
 734         struct list_head action;
 735
 736         bdaddr_t addr;
 737         u8 addr_type;
 738
 739         u16 conn_min_interval;
 740         u16 conn_max_interval;
 741         u16 conn_latency;
 742         u16 supervision_timeout;
 743
 744         enum {
 745                 HCI_AUTO_CONN_DISABLED,
 746                 HCI_AUTO_CONN_REPORT,
 747                 HCI_AUTO_CONN_DIRECT,
 748                 HCI_AUTO_CONN_ALWAYS,
 749                 HCI_AUTO_CONN_LINK_LOSS,
 750                 HCI_AUTO_CONN_EXPLICIT,
 751         } auto_connect;
 752
 753         struct hci_conn *conn;
 754         bool explicit_connect;
 755         u32 current_flags;
 756 };
 757
 758 extern struct list_head hci_dev_list;
 759 extern struct list_head hci_cb_list;
 760 extern rwlock_t hci_dev_list_lock;
 761 extern struct mutex hci_cb_list_lock;
 762
 763 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 764 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 765 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 766 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 767 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 768 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 769 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 770
 771 #define hci_dev_clear_volatile_flags(hdev)                      \
 772         do {                                                    \
 773                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 774                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 775                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 776                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 777         } while (0)
 778
 779 /* ----- HCI interface to upper protocols ----- */
 780 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 781 int l2cap_disconn_ind(struct hci_conn *hcon);
 782 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 783
 784 #if IS_ENABLED(CONFIG_BT_BREDR)
 785 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 786 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 787 #else
 788 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 789                                   __u8 *flags)
 790 {
 791         return 0;
 792 }
 793
 794 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 795 {
 796 }
 797 #endif
 798
 799 /* ----- Inquiry cache ----- */
 800 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 801 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 802
 803 static inline void discovery_init(struct hci_dev *hdev)
 804 {
 805         hdev->discovery.state = DISCOVERY_STOPPED;
 806         INIT_LIST_HEAD(&hdev->discovery.all);
 807         INIT_LIST_HEAD(&hdev->discovery.unknown);
 808         INIT_LIST_HEAD(&hdev->discovery.resolve);
 809         hdev->discovery.report_invalid_rssi = true;
 810         hdev->discovery.rssi = HCI_RSSI_INVALID;
 811 }
 812
 813 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 814 {
 815         hdev->discovery.result_filtering = false;
 816         hdev->discovery.report_invalid_rssi = true;
 817         hdev->discovery.rssi = HCI_RSSI_INVALID;
 818         hdev->discovery.uuid_count = 0;
 819         kfree(hdev->discovery.uuids);
 820         hdev->discovery.uuids = NULL;
 821         hdev->discovery.scan_start = 0;
 822         hdev->discovery.scan_duration = 0;
 823 }
 824
 825 bool hci_discovery_active(struct hci_dev *hdev);
 826
 827 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 828
 829 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 830 {
 831         return list_empty(&hdev->discovery.all);
 832 }
 833
 834 static inline long inquiry_cache_age(struct hci_dev *hdev)
 835 {
 836         struct discovery_state *c = &hdev->discovery;
 837         return jiffies - c->timestamp;
 838 }
 839
 840 static inline long inquiry_entry_age(struct inquiry_entry *e)
 841 {
 842         return jiffies - e->timestamp;
 843 }
 844
 845 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 846                                                bdaddr_t *bdaddr);
 847 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 848                                                        bdaddr_t *bdaddr);
 849 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 850                                                        bdaddr_t *bdaddr,
 851                                                        int state);
 852 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 853                                       struct inquiry_entry *ie);
 854 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 855                              bool name_known);
 856 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 857
 858 /* ----- HCI Connections ----- */
 859 enum {
 860         HCI_CONN_AUTH_PEND,
 861         HCI_CONN_REAUTH_PEND,
 862         HCI_CONN_ENCRYPT_PEND,
 863         HCI_CONN_RSWITCH_PEND,
 864         HCI_CONN_MODE_CHANGE_PEND,
 865         HCI_CONN_SCO_SETUP_PEND,
 866         HCI_CONN_MGMT_CONNECTED,
 867         HCI_CONN_SSP_ENABLED,
 868         HCI_CONN_SC_ENABLED,
 869         HCI_CONN_AES_CCM,
 870         HCI_CONN_POWER_SAVE,
 871         HCI_CONN_FLUSH_KEY,
 872         HCI_CONN_ENCRYPT,
 873         HCI_CONN_AUTH,
 874         HCI_CONN_SECURE,
 875         HCI_CONN_FIPS,
 876         HCI_CONN_STK_ENCRYPT,
 877         HCI_CONN_AUTH_INITIATOR,
 878         HCI_CONN_DROP,
 879         HCI_CONN_PARAM_REMOVAL_PEND,
 880         HCI_CONN_NEW_LINK_KEY,
 881         HCI_CONN_SCANNING,
 882         HCI_CONN_AUTH_FAILURE,
 883 };
 884
 885 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 886 {
 887         struct hci_dev *hdev = conn->hdev;
 888         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 889                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 890 }
 891
 892 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 893 {
 894         struct hci_dev *hdev = conn->hdev;
 895         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 896                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 897 }
 898
 899 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 900 {
 901         struct hci_conn_hash *h = &hdev->conn_hash;
 902         list_add_rcu(&c->list, &h->list);
 903         switch (c->type) {
 904         case ACL_LINK:
 905                 h->acl_num++;
 906                 break;
 907         case AMP_LINK:
 908                 h->amp_num++;
 909                 break;
 910         case LE_LINK:
 911                 h->le_num++;
 912                 if (c->role == HCI_ROLE_SLAVE)
 913                         h->le_num_peripheral++;
 914                 break;
 915         case SCO_LINK:
 916         case ESCO_LINK:
 917                 h->sco_num++;
 918                 break;
 919         }
 920 }
 921
 922 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 923 {
 924         struct hci_conn_hash *h = &hdev->conn_hash;
 925
 926         list_del_rcu(&c->list);
 927         synchronize_rcu();
 928
 929         switch (c->type) {
 930         case ACL_LINK:
 931                 h->acl_num--;
 932                 break;
 933         case AMP_LINK:
 934                 h->amp_num--;
 935                 break;
 936         case LE_LINK:
 937                 h->le_num--;
 938                 if (c->role == HCI_ROLE_SLAVE)
 939                         h->le_num_peripheral--;
 940                 break;
 941         case SCO_LINK:
 942         case ESCO_LINK:
 943                 h->sco_num--;
 944                 break;
 945         }
 946 }
 947
 948 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 949 {
 950         struct hci_conn_hash *h = &hdev->conn_hash;
 951         switch (type) {
 952         case ACL_LINK:
 953                 return h->acl_num;
 954         case AMP_LINK:
 955                 return h->amp_num;
 956         case LE_LINK:
 957                 return h->le_num;
 958         case SCO_LINK:
 959         case ESCO_LINK:
 960                 return h->sco_num;
 961         default:
 962                 return 0;
 963         }
 964 }
 965
 966 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 967 {
 968         struct hci_conn_hash *c = &hdev->conn_hash;
 969
 970         return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 971 }
 972
 973 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 974 {
 975         struct hci_conn_hash *h = &hdev->conn_hash;
 976         struct hci_conn *c;
 977         __u8 type = INVALID_LINK;
 978
 979         rcu_read_lock();
 980
 981         list_for_each_entry_rcu(c, &h->list, list) {
 982                 if (c->handle == handle) {
 983                         type = c->type;
 984                         break;
 985                 }
 986         }
 987
 988         rcu_read_unlock();
 989
 990         return type;
 991 }
 992
 993 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 994                                                                 __u16 handle)
 995 {
 996         struct hci_conn_hash *h = &hdev->conn_hash;
 997         struct hci_conn  *c;
 998
 999         rcu_read_lock();
1000
1001         list_for_each_entry_rcu(c, &h->list, list) {
1002                 if (c->handle == handle) {
1003                         rcu_read_unlock();
1004                         return c;
1005                 }
1006         }
1007         rcu_read_unlock();
1008
1009         return NULL;
1010 }
1011
1012 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1013                                                         __u8 type, bdaddr_t *ba)
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->type == type && !bacmp(&c->dst, ba)) {
1022                         rcu_read_unlock();
1023                         return c;
1024                 }
1025         }
1026
1027         rcu_read_unlock();
1028
1029         return NULL;
1030 }
1031
1032 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1033                                                        bdaddr_t *ba,
1034                                                        __u8 ba_type)
1035 {
1036         struct hci_conn_hash *h = &hdev->conn_hash;
1037         struct hci_conn  *c;
1038
1039         rcu_read_lock();
1040
1041         list_for_each_entry_rcu(c, &h->list, list) {
1042                 if (c->type != LE_LINK)
1043                        continue;
1044
1045                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1046                         rcu_read_unlock();
1047                         return c;
1048                 }
1049         }
1050
1051         rcu_read_unlock();
1052
1053         return NULL;
1054 }
1055
1056 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1057                                                         __u8 type, __u16 state)
1058 {
1059         struct hci_conn_hash *h = &hdev->conn_hash;
1060         struct hci_conn  *c;
1061
1062         rcu_read_lock();
1063
1064         list_for_each_entry_rcu(c, &h->list, list) {
1065                 if (c->type == type && c->state == state) {
1066                         rcu_read_unlock();
1067                         return c;
1068                 }
1069         }
1070
1071         rcu_read_unlock();
1072
1073         return NULL;
1074 }
1075
1076 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
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 == LE_LINK && c->state == BT_CONNECT &&
1085                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1086                         rcu_read_unlock();
1087                         return c;
1088                 }
1089         }
1090
1091         rcu_read_unlock();
1092
1093         return NULL;
1094 }
1095
1096 #ifdef TIZEN_BT
1097 static inline bool hci_conn_rssi_state_set(struct hci_dev *hdev,
1098                                         __u8 type, bdaddr_t *ba, bool value)
1099 {
1100         struct hci_conn_hash *h = &hdev->conn_hash;
1101         struct hci_conn  *c;
1102         __u8 conn_type;
1103
1104         if (type == 0x01)
1105                 conn_type = LE_LINK;
1106         else
1107                 conn_type = ACL_LINK;
1108
1109         rcu_read_lock();
1110
1111         list_for_each_entry_rcu(c, &h->list, list) {
1112                 if (c->type == conn_type && !bacmp(&c->dst, ba)) {
1113                         c->rssi_monitored = value;
1114                         rcu_read_unlock();
1115                         return true;
1116                 }
1117         }
1118
1119         rcu_read_unlock();
1120         return false;
1121 }
1122
1123 static inline void hci_conn_rssi_unset_all(struct hci_dev *hdev,
1124                                         __u8 type)
1125 {
1126         struct hci_conn_hash *h = &hdev->conn_hash;
1127         struct hci_conn  *c;
1128         __u8 conn_type;
1129
1130         if (type == 0x01)
1131                 conn_type = LE_LINK;
1132         else
1133                 conn_type = ACL_LINK;
1134
1135         rcu_read_lock();
1136         list_for_each_entry_rcu(c, &h->list, list) {
1137                 if (c->type == conn_type)
1138                         c->rssi_monitored = false;
1139         }
1140         rcu_read_unlock();
1141 }
1142
1143 static inline int hci_conn_hash_lookup_rssi_count(struct hci_dev *hdev)
1144 {
1145         struct hci_conn_hash *h = &hdev->conn_hash;
1146         struct hci_conn  *c;
1147         int count = 0;
1148
1149         rcu_read_lock();
1150         list_for_each_entry_rcu(c, &h->list, list) {
1151                 if (c->rssi_monitored == true)
1152                         ++count;
1153         }
1154         rcu_read_unlock();
1155
1156         return count;
1157 }
1158
1159 bool hci_le_discovery_active(struct hci_dev *hdev);
1160 void hci_le_discovery_set_state(struct hci_dev *hdev, int state);
1161 #endif
1162
1163 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1164 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1165 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1166
1167 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1168                               u8 role);
1169 int hci_conn_del(struct hci_conn *conn);
1170 void hci_conn_hash_flush(struct hci_dev *hdev);
1171 void hci_conn_check_pending(struct hci_dev *hdev);
1172
1173 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1174 void hci_chan_del(struct hci_chan *chan);
1175 void hci_chan_list_flush(struct hci_conn *conn);
1176 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1177
1178 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1179                                      u8 dst_type, u8 sec_level,
1180                                      u16 conn_timeout,
1181                                      enum conn_reasons conn_reason);
1182 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1183                                 u8 dst_type, u8 sec_level, u16 conn_timeout,
1184                                 u8 role, bdaddr_t *direct_rpa);
1185 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1186                                  u8 sec_level, u8 auth_type,
1187                                  enum conn_reasons conn_reason);
1188 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1189                                  __u16 setting);
1190 int hci_conn_check_link_mode(struct hci_conn *conn);
1191 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1192 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1193                       bool initiator);
1194 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1195
1196 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1197
1198 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1199
1200 /*
1201  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1202  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1203  * working or anything else. They just guarantee that the object is available
1204  * and can be dereferenced. So you can use its locks, local variables and any
1205  * other constant data.
1206  * Before accessing runtime data, you _must_ lock the object and then check that
1207  * it is still running. As soon as you release the locks, the connection might
1208  * get dropped, though.
1209  *
1210  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1211  * how long the underlying connection is held. So every channel that runs on the
1212  * hci_conn object calls this to prevent the connection from disappearing. As
1213  * long as you hold a device, you must also guarantee that you have a valid
1214  * reference to the device via hci_conn_get() (or the initial reference from
1215  * hci_conn_add()).
1216  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1217  * break because nobody cares for that. But this means, we cannot use
1218  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1219  */
1220
1221 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1222 {
1223         get_device(&conn->dev);
1224         return conn;
1225 }
1226
1227 static inline void hci_conn_put(struct hci_conn *conn)
1228 {
1229         put_device(&conn->dev);
1230 }
1231
1232 static inline void hci_conn_hold(struct hci_conn *conn)
1233 {
1234         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1235
1236         atomic_inc(&conn->refcnt);
1237         cancel_delayed_work(&conn->disc_work);
1238 }
1239
1240 static inline void hci_conn_drop(struct hci_conn *conn)
1241 {
1242         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1243
1244         if (atomic_dec_and_test(&conn->refcnt)) {
1245                 unsigned long timeo;
1246
1247                 switch (conn->type) {
1248                 case ACL_LINK:
1249                 case LE_LINK:
1250                         cancel_delayed_work(&conn->idle_work);
1251                         if (conn->state == BT_CONNECTED) {
1252                                 timeo = conn->disc_timeout;
1253                                 if (!conn->out)
1254                                         timeo *= 2;
1255                         } else {
1256                                 timeo = 0;
1257                         }
1258                         break;
1259
1260                 case AMP_LINK:
1261                         timeo = conn->disc_timeout;
1262                         break;
1263
1264                 default:
1265                         timeo = 0;
1266                         break;
1267                 }
1268
1269                 cancel_delayed_work(&conn->disc_work);
1270                 queue_delayed_work(conn->hdev->workqueue,
1271                                    &conn->disc_work, timeo);
1272         }
1273 }
1274
1275 /* ----- HCI Devices ----- */
1276 static inline void hci_dev_put(struct hci_dev *d)
1277 {
1278         BT_DBG("%s orig refcnt %d", d->name,
1279                kref_read(&d->dev.kobj.kref));
1280
1281         put_device(&d->dev);
1282 }
1283
1284 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1285 {
1286         BT_DBG("%s orig refcnt %d", d->name,
1287                kref_read(&d->dev.kobj.kref));
1288
1289         get_device(&d->dev);
1290         return d;
1291 }
1292
1293 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1294 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1295
1296 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1297 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1298
1299 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1300 {
1301         return dev_get_drvdata(&hdev->dev);
1302 }
1303
1304 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1305 {
1306         dev_set_drvdata(&hdev->dev, data);
1307 }
1308
1309 static inline void *hci_get_priv(struct hci_dev *hdev)
1310 {
1311         return (char *)hdev + sizeof(*hdev);
1312 }
1313
1314 struct hci_dev *hci_dev_get(int index);
1315 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1316
1317 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1318
1319 static inline struct hci_dev *hci_alloc_dev(void)
1320 {
1321         return hci_alloc_dev_priv(0);
1322 }
1323
1324 void hci_free_dev(struct hci_dev *hdev);
1325 int hci_register_dev(struct hci_dev *hdev);
1326 void hci_unregister_dev(struct hci_dev *hdev);
1327 void hci_release_dev(struct hci_dev *hdev);
1328 int hci_suspend_dev(struct hci_dev *hdev);
1329 int hci_resume_dev(struct hci_dev *hdev);
1330 int hci_reset_dev(struct hci_dev *hdev);
1331 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1332 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1333 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1334 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1335
1336 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1337 {
1338 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1339         hdev->msft_opcode = opcode;
1340 #endif
1341 }
1342
1343 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1344 {
1345 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1346         hdev->aosp_capable = true;
1347 #endif
1348 }
1349
1350 int hci_dev_open(__u16 dev);
1351 int hci_dev_close(__u16 dev);
1352 int hci_dev_do_close(struct hci_dev *hdev);
1353 int hci_dev_reset(__u16 dev);
1354 int hci_dev_reset_stat(__u16 dev);
1355 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1356 int hci_get_dev_list(void __user *arg);
1357 int hci_get_dev_info(void __user *arg);
1358 int hci_get_conn_list(void __user *arg);
1359 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1360 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1361 int hci_inquiry(void __user *arg);
1362
1363 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1364                                            bdaddr_t *bdaddr, u8 type);
1365 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1366                                     struct list_head *list, bdaddr_t *bdaddr,
1367                                     u8 type);
1368 struct bdaddr_list_with_flags *
1369 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1370                                   u8 type);
1371 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1372 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1373                                  u8 type, u8 *peer_irk, u8 *local_irk);
1374 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1375                                    u8 type, u32 flags);
1376 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1377 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1378                                  u8 type);
1379 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1380                                    u8 type);
1381 void hci_bdaddr_list_clear(struct list_head *list);
1382
1383 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1384                                                bdaddr_t *addr, u8 addr_type);
1385 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1386                                             bdaddr_t *addr, u8 addr_type);
1387 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1388 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1389
1390 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1391                                                   bdaddr_t *addr,
1392                                                   u8 addr_type);
1393
1394 void hci_uuids_clear(struct hci_dev *hdev);
1395
1396 void hci_link_keys_clear(struct hci_dev *hdev);
1397 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1398 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1399                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1400                                   u8 pin_len, bool *persistent);
1401 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1402                             u8 addr_type, u8 type, u8 authenticated,
1403                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1404 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1405                              u8 addr_type, u8 role);
1406 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1407 void hci_smp_ltks_clear(struct hci_dev *hdev);
1408 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1409
1410 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1411 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1412                                      u8 addr_type);
1413 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1414                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1415 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1416 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1417 void hci_blocked_keys_clear(struct hci_dev *hdev);
1418 void hci_smp_irks_clear(struct hci_dev *hdev);
1419
1420 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1421
1422 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1423 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1424                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1425 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1426                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1427                             u8 *hash256, u8 *rand256);
1428 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1429                                u8 bdaddr_type);
1430
1431 void hci_adv_instances_clear(struct hci_dev *hdev);
1432 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1433 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1434 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1435                          u16 adv_data_len, u8 *adv_data,
1436                          u16 scan_rsp_len, u8 *scan_rsp_data,
1437                          u16 timeout, u16 duration, s8 tx_power,
1438                          u32 min_interval, u32 max_interval);
1439 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1440                          u16 adv_data_len, u8 *adv_data,
1441                          u16 scan_rsp_len, u8 *scan_rsp_data);
1442 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1443 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1444
1445 void hci_adv_monitors_clear(struct hci_dev *hdev);
1446 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1447 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1448 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1449 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
1450                         int *err);
1451 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
1452 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
1453 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1454 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1455
1456 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1457
1458 void hci_init_sysfs(struct hci_dev *hdev);
1459 void hci_conn_init_sysfs(struct hci_conn *conn);
1460 void hci_conn_add_sysfs(struct hci_conn *conn);
1461 void hci_conn_del_sysfs(struct hci_conn *conn);
1462
1463 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1464
1465 /* ----- LMP capabilities ----- */
1466 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1467 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1468 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1469 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1470 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1471 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1472 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1473 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1474 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1475 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1476 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1477 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1478 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1479 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1480 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1481 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1482 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1483 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1484 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1485 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1486 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1487 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1488 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1489 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1490
1491 /* ----- Extended LMP capabilities ----- */
1492 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1493 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1494 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1495 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1496 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1497 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1498
1499 /* ----- Host capabilities ----- */
1500 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1501 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1502 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1503 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1504
1505 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1506                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1507 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1508                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1509 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1510                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1511 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1512                                 !adv->rpa_expired)
1513
1514 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1515                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1516
1517 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1518                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1519
1520 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1521                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1522
1523 /* Use LL Privacy based address resolution if supported */
1524 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1525
1526 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1527 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1528                            ((dev)->commands[37] & 0x40))
1529 /* Use ext create connection if command is supported */
1530 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1531
1532 /* Extended advertising support */
1533 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1534
1535 /* ----- HCI protocols ----- */
1536 #define HCI_PROTO_DEFER             0x01
1537
1538 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1539                                         __u8 type, __u8 *flags)
1540 {
1541         switch (type) {
1542         case ACL_LINK:
1543                 return l2cap_connect_ind(hdev, bdaddr);
1544
1545         case SCO_LINK:
1546         case ESCO_LINK:
1547                 return sco_connect_ind(hdev, bdaddr, flags);
1548
1549         default:
1550                 BT_ERR("unknown link type %d", type);
1551                 return -EINVAL;
1552         }
1553 }
1554
1555 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1556 {
1557         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1558                 return HCI_ERROR_REMOTE_USER_TERM;
1559
1560         return l2cap_disconn_ind(conn);
1561 }
1562
1563 /* ----- HCI callbacks ----- */
1564 struct hci_cb {
1565         struct list_head list;
1566
1567         char *name;
1568
1569         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1570         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1571         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1572                                                                 __u8 encrypt);
1573         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1574         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1575 };
1576
1577 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1578 {
1579         struct hci_cb *cb;
1580
1581         mutex_lock(&hci_cb_list_lock);
1582         list_for_each_entry(cb, &hci_cb_list, list) {
1583                 if (cb->connect_cfm)
1584                         cb->connect_cfm(conn, status);
1585         }
1586         mutex_unlock(&hci_cb_list_lock);
1587
1588         if (conn->connect_cfm_cb)
1589                 conn->connect_cfm_cb(conn, status);
1590 }
1591
1592 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1593 {
1594         struct hci_cb *cb;
1595
1596         mutex_lock(&hci_cb_list_lock);
1597         list_for_each_entry(cb, &hci_cb_list, list) {
1598                 if (cb->disconn_cfm)
1599                         cb->disconn_cfm(conn, reason);
1600         }
1601         mutex_unlock(&hci_cb_list_lock);
1602
1603         if (conn->disconn_cfm_cb)
1604                 conn->disconn_cfm_cb(conn, reason);
1605 }
1606
1607 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1608 {
1609         struct hci_cb *cb;
1610         __u8 encrypt;
1611
1612         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1613                 return;
1614
1615         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1616
1617         mutex_lock(&hci_cb_list_lock);
1618         list_for_each_entry(cb, &hci_cb_list, list) {
1619                 if (cb->security_cfm)
1620                         cb->security_cfm(conn, status, encrypt);
1621         }
1622         mutex_unlock(&hci_cb_list_lock);
1623
1624         if (conn->security_cfm_cb)
1625                 conn->security_cfm_cb(conn, status);
1626 }
1627
1628 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1629 {
1630         struct hci_cb *cb;
1631         __u8 encrypt;
1632
1633         if (conn->state == BT_CONFIG) {
1634                 if (!status)
1635                         conn->state = BT_CONNECTED;
1636
1637                 hci_connect_cfm(conn, status);
1638                 hci_conn_drop(conn);
1639                 return;
1640         }
1641
1642         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1643                 encrypt = 0x00;
1644         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1645                 encrypt = 0x02;
1646         else
1647                 encrypt = 0x01;
1648
1649         if (!status) {
1650                 if (conn->sec_level == BT_SECURITY_SDP)
1651                         conn->sec_level = BT_SECURITY_LOW;
1652
1653                 if (conn->pending_sec_level > conn->sec_level)
1654                         conn->sec_level = conn->pending_sec_level;
1655         }
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_key_change_cfm(struct hci_conn *conn, __u8 status)
1669 {
1670         struct hci_cb *cb;
1671
1672         mutex_lock(&hci_cb_list_lock);
1673         list_for_each_entry(cb, &hci_cb_list, list) {
1674                 if (cb->key_change_cfm)
1675                         cb->key_change_cfm(conn, status);
1676         }
1677         mutex_unlock(&hci_cb_list_lock);
1678 }
1679
1680 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1681                                                                 __u8 role)
1682 {
1683         struct hci_cb *cb;
1684
1685         mutex_lock(&hci_cb_list_lock);
1686         list_for_each_entry(cb, &hci_cb_list, list) {
1687                 if (cb->role_switch_cfm)
1688                         cb->role_switch_cfm(conn, status, role);
1689         }
1690         mutex_unlock(&hci_cb_list_lock);
1691 }
1692
1693 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1694                                  size_t *data_len)
1695 {
1696         size_t parsed = 0;
1697
1698         if (eir_len < 2)
1699                 return NULL;
1700
1701         while (parsed < eir_len - 1) {
1702                 u8 field_len = eir[0];
1703
1704                 if (field_len == 0)
1705                         break;
1706
1707                 parsed += field_len + 1;
1708
1709                 if (parsed > eir_len)
1710                         break;
1711
1712                 if (eir[1] != type) {
1713                         eir += field_len + 1;
1714                         continue;
1715                 }
1716
1717                 /* Zero length data */
1718                 if (field_len == 1)
1719                         return NULL;
1720
1721                 if (data_len)
1722                         *data_len = field_len - 1;
1723
1724                 return &eir[2];
1725         }
1726
1727         return NULL;
1728 }
1729
1730 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1731 {
1732         if (addr_type != ADDR_LE_DEV_RANDOM)
1733                 return false;
1734
1735         if ((bdaddr->b[5] & 0xc0) == 0x40)
1736                return true;
1737
1738         return false;
1739 }
1740
1741 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1742 {
1743         if (addr_type == ADDR_LE_DEV_PUBLIC)
1744                 return true;
1745
1746         /* Check for Random Static address type */
1747         if ((addr->b[5] & 0xc0) == 0xc0)
1748                 return true;
1749
1750         return false;
1751 }
1752
1753 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1754                                           bdaddr_t *bdaddr, u8 addr_type)
1755 {
1756         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1757                 return NULL;
1758
1759         return hci_find_irk_by_rpa(hdev, bdaddr);
1760 }
1761
1762 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1763                                         u16 to_multiplier)
1764 {
1765         u16 max_latency;
1766
1767         if (min > max || min < 6 || max > 3200)
1768                 return -EINVAL;
1769
1770         if (to_multiplier < 10 || to_multiplier > 3200)
1771                 return -EINVAL;
1772
1773         if (max >= to_multiplier * 8)
1774                 return -EINVAL;
1775
1776         max_latency = (to_multiplier * 4 / max) - 1;
1777         if (latency > 499 || latency > max_latency)
1778                 return -EINVAL;
1779
1780         return 0;
1781 }
1782
1783 int hci_register_cb(struct hci_cb *hcb);
1784 int hci_unregister_cb(struct hci_cb *hcb);
1785
1786 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1787                                const void *param, u32 timeout);
1788 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1789                                   const void *param, u8 event, u32 timeout);
1790 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1791                    const void *param);
1792
1793 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1794                  const void *param);
1795 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1796 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1797
1798 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1799
1800 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1801                              const void *param, u32 timeout);
1802
1803 u32 hci_conn_get_phy(struct hci_conn *conn);
1804
1805 /* ----- HCI Sockets ----- */
1806 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1807 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1808                          int flag, struct sock *skip_sk);
1809 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1810 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1811                                  void *data, u16 data_len, ktime_t tstamp,
1812                                  int flag, struct sock *skip_sk);
1813
1814 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1815
1816 #define HCI_MGMT_VAR_LEN        BIT(0)
1817 #define HCI_MGMT_NO_HDEV        BIT(1)
1818 #define HCI_MGMT_UNTRUSTED      BIT(2)
1819 #define HCI_MGMT_UNCONFIGURED   BIT(3)
1820 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
1821
1822 struct hci_mgmt_handler {
1823         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1824                      u16 data_len);
1825         size_t data_len;
1826         unsigned long flags;
1827 };
1828
1829 struct hci_mgmt_chan {
1830         struct list_head list;
1831         unsigned short channel;
1832         size_t handler_count;
1833         const struct hci_mgmt_handler *handlers;
1834 #ifdef TIZEN_BT
1835         size_t tizen_handler_count;
1836         const struct hci_mgmt_handler *tizen_handlers;
1837 #endif
1838         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1839 };
1840
1841 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1842 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1843
1844 /* Management interface */
1845 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1846 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1847                                          BIT(BDADDR_LE_RANDOM))
1848 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1849                                          BIT(BDADDR_LE_PUBLIC) | \
1850                                          BIT(BDADDR_LE_RANDOM))
1851
1852 /* These LE scan and inquiry parameters were chosen according to LE General
1853  * Discovery Procedure specification.
1854  */
1855 #define DISCOV_LE_SCAN_WIN              0x12
1856 #define DISCOV_LE_SCAN_INT              0x12
1857 #define DISCOV_LE_TIMEOUT               10240   /* msec */
1858 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
1859 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1860 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1861 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
1862 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
1863 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
1864
1865 void mgmt_fill_version_info(void *ver);
1866 int mgmt_new_settings(struct hci_dev *hdev);
1867 void mgmt_index_added(struct hci_dev *hdev);
1868 void mgmt_index_removed(struct hci_dev *hdev);
1869 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1870 void mgmt_power_on(struct hci_dev *hdev, int err);
1871 void __mgmt_power_off(struct hci_dev *hdev);
1872 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1873                        bool persistent);
1874 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1875                            u8 *name, u8 name_len);
1876 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1877                               u8 link_type, u8 addr_type, u8 reason,
1878                               bool mgmt_connected);
1879 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1880                             u8 link_type, u8 addr_type, u8 status);
1881 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1882                          u8 addr_type, u8 status);
1883 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1884 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1885                                   u8 status);
1886 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1887                                       u8 status);
1888 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1889                               u8 link_type, u8 addr_type, u32 value,
1890                               u8 confirm_hint);
1891 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1892                                      u8 link_type, u8 addr_type, u8 status);
1893 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1894                                          u8 link_type, u8 addr_type, u8 status);
1895 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1896                               u8 link_type, u8 addr_type);
1897 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1898                                      u8 link_type, u8 addr_type, u8 status);
1899 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1900                                          u8 link_type, u8 addr_type, u8 status);
1901 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1902                              u8 link_type, u8 addr_type, u32 passkey,
1903                              u8 entered);
1904 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1905 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1906 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1907 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1908                                     u8 status);
1909 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1910 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1911 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1912 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1913                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1914                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1915 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1916                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1917 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1918 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1919 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1920                    u8 addr_type);
1921 bool mgmt_powering_down(struct hci_dev *hdev);
1922 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1923 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1924 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1925                    bool persistent);
1926 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1927                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
1928                          u16 max_interval, u16 latency, u16 timeout);
1929 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1930 bool mgmt_get_connectable(struct hci_dev *hdev);
1931 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1932 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1933 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1934 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1935                             u8 instance);
1936 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1937                               u8 instance);
1938 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
1939 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1940 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1941 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1942
1943 #ifdef TIZEN_BT
1944 void mgmt_rssi_enable_success(struct sock *sk, struct hci_dev *hdev,
1945                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1946 void mgmt_rssi_disable_success(struct sock *sk, struct hci_dev *hdev,
1947                 void *data, struct hci_cc_rsp_enable_rssi *rp, int success);
1948 int mgmt_set_rssi_threshold(struct sock *sk, struct hci_dev *hdev,
1949                 void *data, u16 len);
1950 void mgmt_rssi_alert_evt(struct hci_dev *hdev, struct sk_buff *skb);
1951 void mgmt_raw_rssi_response(struct hci_dev *hdev,
1952                 struct hci_cc_rp_get_raw_rssi *rp, int success);
1953 void mgmt_enable_rssi_cc(struct hci_dev *hdev, void *response, u8 status);
1954 int mgmt_device_name_update(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name,
1955                 u8 name_len);
1956 void mgmt_le_discovering(struct hci_dev *hdev, u8 discovering);
1957 #endif
1958
1959 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1960                       u16 to_multiplier);
1961 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1962                       __u8 ltk[16], __u8 key_size);
1963
1964 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1965                                u8 *bdaddr_type);
1966
1967 #define SCO_AIRMODE_MASK       0x0003
1968 #define SCO_AIRMODE_CVSD       0x0000
1969 #define SCO_AIRMODE_TRANSP     0x0003
1970
1971 #endif /* __HCI_CORE_H */