include/net/bluetooth/hci_core.h

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