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