include/net/bluetooth/hci_core.h

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3    Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
   4
   5    Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License version 2 as
   9    published by the Free Software Foundation;
  10
  11    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  12    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  13    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
  14    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
  15    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
  16    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19
  20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
  21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
  22    SOFTWARE IS DISCLAIMED.
  23 */
  24
  25 #ifndef __HCI_CORE_H
  26 #define __HCI_CORE_H
  27
  28 #include <linux/idr.h>
  29 #include <linux/leds.h>
  30 #include <linux/rculist.h>
  31
  32 #include <net/bluetooth/hci.h>
  33 #include <net/bluetooth/hci_sock.h>
  34
  35 /* HCI priority */
  36 #define HCI_PRIO_MAX    7
  37
  38 /* HCI maximum id value */
  39 #define HCI_MAX_ID 10000
  40
  41 /* HCI Core structures */
  42 struct inquiry_data {
  43         bdaddr_t        bdaddr;
  44         __u8            pscan_rep_mode;
  45         __u8            pscan_period_mode;
  46         __u8            pscan_mode;
  47         __u8            dev_class[3];
  48         __le16          clock_offset;
  49         __s8            rssi;
  50         __u8            ssp_mode;
  51 };
  52
  53 struct inquiry_entry {
  54         struct list_head        all;            /* inq_cache.all */
  55         struct list_head        list;           /* unknown or resolve */
  56         enum {
  57                 NAME_NOT_KNOWN,
  58                 NAME_NEEDED,
  59                 NAME_PENDING,
  60                 NAME_KNOWN,
  61         } name_state;
  62         __u32                   timestamp;
  63         struct inquiry_data     data;
  64 };
  65
  66 struct discovery_state {
  67         int                     type;
  68         enum {
  69                 DISCOVERY_STOPPED,
  70                 DISCOVERY_STARTING,
  71                 DISCOVERY_FINDING,
  72                 DISCOVERY_RESOLVING,
  73                 DISCOVERY_STOPPING,
  74         } state;
  75         struct list_head        all;    /* All devices found during inquiry */
  76         struct list_head        unknown;        /* Name state not known */
  77         struct list_head        resolve;        /* Name needs to be resolved */
  78         __u32                   timestamp;
  79         bdaddr_t                last_adv_addr;
  80         u8                      last_adv_addr_type;
  81         s8                      last_adv_rssi;
  82         u32                     last_adv_flags;
  83         u8                      last_adv_data[HCI_MAX_AD_LENGTH];
  84         u8                      last_adv_data_len;
  85         bool                    report_invalid_rssi;
  86         bool                    result_filtering;
  87         bool                    limited;
  88         s8                      rssi;
  89         u16                     uuid_count;
  90         u8                      (*uuids)[16];
  91         unsigned long           scan_start;
  92         unsigned long           scan_duration;
  93 };
  94
  95 #define SUSPEND_NOTIFIER_TIMEOUT        msecs_to_jiffies(2000) /* 2 seconds */
  96
  97 enum suspend_tasks {
  98         SUSPEND_PAUSE_DISCOVERY,
  99         SUSPEND_UNPAUSE_DISCOVERY,
 100
 101         SUSPEND_PAUSE_ADVERTISING,
 102         SUSPEND_UNPAUSE_ADVERTISING,
 103
 104         SUSPEND_SCAN_DISABLE,
 105         SUSPEND_SCAN_ENABLE,
 106         SUSPEND_DISCONNECTING,
 107
 108         SUSPEND_POWERING_DOWN,
 109
 110         SUSPEND_PREPARE_NOTIFIER,
 111
 112         SUSPEND_SET_ADV_FILTER,
 113         __SUSPEND_NUM_TASKS
 114 };
 115
 116 enum suspended_state {
 117         BT_RUNNING = 0,
 118         BT_SUSPEND_DISCONNECT,
 119         BT_SUSPEND_CONFIGURE_WAKE,
 120 };
 121
 122 struct hci_conn_hash {
 123         struct list_head list;
 124         unsigned int     acl_num;
 125         unsigned int     amp_num;
 126         unsigned int     sco_num;
 127         unsigned int     le_num;
 128         unsigned int     le_num_peripheral;
 129 };
 130
 131 struct bdaddr_list {
 132         struct list_head list;
 133         bdaddr_t bdaddr;
 134         u8 bdaddr_type;
 135 };
 136
 137 struct bdaddr_list_with_irk {
 138         struct list_head list;
 139         bdaddr_t bdaddr;
 140         u8 bdaddr_type;
 141         u8 peer_irk[16];
 142         u8 local_irk[16];
 143 };
 144
 145 struct bdaddr_list_with_flags {
 146         struct list_head list;
 147         bdaddr_t bdaddr;
 148         u8 bdaddr_type;
 149         u32 current_flags;
 150 };
 151
 152 enum hci_conn_flags {
 153         HCI_CONN_FLAG_REMOTE_WAKEUP,
 154         HCI_CONN_FLAG_MAX
 155 };
 156
 157 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr))
 158
 159 /* Make sure number of flags doesn't exceed sizeof(current_flags) */
 160 static_assert(HCI_CONN_FLAG_MAX < 32);
 161
 162 struct bt_uuid {
 163         struct list_head list;
 164         u8 uuid[16];
 165         u8 size;
 166         u8 svc_hint;
 167 };
 168
 169 struct blocked_key {
 170         struct list_head list;
 171         struct rcu_head rcu;
 172         u8 type;
 173         u8 val[16];
 174 };
 175
 176 struct smp_csrk {
 177         bdaddr_t bdaddr;
 178         u8 bdaddr_type;
 179         u8 type;
 180         u8 val[16];
 181 };
 182
 183 struct smp_ltk {
 184         struct list_head list;
 185         struct rcu_head rcu;
 186         bdaddr_t bdaddr;
 187         u8 bdaddr_type;
 188         u8 authenticated;
 189         u8 type;
 190         u8 enc_size;
 191         __le16 ediv;
 192         __le64 rand;
 193         u8 val[16];
 194 };
 195
 196 struct smp_irk {
 197         struct list_head list;
 198         struct rcu_head rcu;
 199         bdaddr_t rpa;
 200         bdaddr_t bdaddr;
 201         u8 addr_type;
 202         u8 val[16];
 203 };
 204
 205 struct link_key {
 206         struct list_head list;
 207         struct rcu_head rcu;
 208         bdaddr_t bdaddr;
 209         u8 type;
 210         u8 val[HCI_LINK_KEY_SIZE];
 211         u8 pin_len;
 212 };
 213
 214 struct oob_data {
 215         struct list_head list;
 216         bdaddr_t bdaddr;
 217         u8 bdaddr_type;
 218         u8 present;
 219         u8 hash192[16];
 220         u8 rand192[16];
 221         u8 hash256[16];
 222         u8 rand256[16];
 223 };
 224
 225 struct adv_info {
 226         struct list_head list;
 227         bool enabled;
 228         bool pending;
 229         __u8    instance;
 230         __u32   flags;
 231         __u16   timeout;
 232         __u16   remaining_time;
 233         __u16   duration;
 234         __u16   adv_data_len;
 235         __u8    adv_data[HCI_MAX_EXT_AD_LENGTH];
 236         __u16   scan_rsp_len;
 237         __u8    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 238         __s8    tx_power;
 239         __u32   min_interval;
 240         __u32   max_interval;
 241         bdaddr_t        random_addr;
 242         bool            rpa_expired;
 243         struct delayed_work     rpa_expired_cb;
 244 };
 245
 246 #define HCI_MAX_ADV_INSTANCES           5
 247 #define HCI_DEFAULT_ADV_DURATION        2
 248
 249 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F
 250
 251 struct adv_pattern {
 252         struct list_head list;
 253         __u8 ad_type;
 254         __u8 offset;
 255         __u8 length;
 256         __u8 value[HCI_MAX_AD_LENGTH];
 257 };
 258
 259 struct adv_rssi_thresholds {
 260         __s8 low_threshold;
 261         __s8 high_threshold;
 262         __u16 low_threshold_timeout;
 263         __u16 high_threshold_timeout;
 264         __u8 sampling_period;
 265 };
 266
 267 struct adv_monitor {
 268         struct list_head patterns;
 269         struct adv_rssi_thresholds rssi;
 270         __u16           handle;
 271
 272         enum {
 273                 ADV_MONITOR_STATE_NOT_REGISTERED,
 274                 ADV_MONITOR_STATE_REGISTERED,
 275                 ADV_MONITOR_STATE_OFFLOADED
 276         } state;
 277 };
 278
 279 #define HCI_MIN_ADV_MONITOR_HANDLE              1
 280 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES         32
 281 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS        16
 282 #define HCI_ADV_MONITOR_EXT_NONE                1
 283 #define HCI_ADV_MONITOR_EXT_MSFT                2
 284
 285 #define HCI_MAX_SHORT_NAME_LENGTH       10
 286
 287 /* Min encryption key size to match with SMP */
 288 #define HCI_MIN_ENC_KEY_SIZE            7
 289
 290 /* Default LE RPA expiry time, 15 minutes */
 291 #define HCI_DEFAULT_RPA_TIMEOUT         (15 * 60)
 292
 293 /* Default min/max age of connection information (1s/3s) */
 294 #define DEFAULT_CONN_INFO_MIN_AGE       1000
 295 #define DEFAULT_CONN_INFO_MAX_AGE       3000
 296 /* Default authenticated payload timeout 30s */
 297 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT   0x0bb8
 298
 299 struct amp_assoc {
 300         __u16   len;
 301         __u16   offset;
 302         __u16   rem_len;
 303         __u16   len_so_far;
 304         __u8    data[HCI_MAX_AMP_ASSOC_SIZE];
 305 };
 306
 307 #define HCI_MAX_PAGES   3
 308
 309 struct hci_dev {
 310         struct list_head list;
 311         struct mutex    lock;
 312
 313         char            name[8];
 314         unsigned long   flags;
 315         __u16           id;
 316         __u8            bus;
 317         __u8            dev_type;
 318         bdaddr_t        bdaddr;
 319         bdaddr_t        setup_addr;
 320         bdaddr_t        public_addr;
 321         bdaddr_t        random_addr;
 322         bdaddr_t        static_addr;
 323         __u8            adv_addr_type;
 324         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 325         __u8            short_name[HCI_MAX_SHORT_NAME_LENGTH];
 326         __u8            eir[HCI_MAX_EIR_LENGTH];
 327         __u16           appearance;
 328         __u8            dev_class[3];
 329         __u8            major_class;
 330         __u8            minor_class;
 331         __u8            max_page;
 332         __u8            features[HCI_MAX_PAGES][8];
 333         __u8            le_features[8];
 334         __u8            le_accept_list_size;
 335         __u8            le_resolv_list_size;
 336         __u8            le_num_of_adv_sets;
 337         __u8            le_states[8];
 338         __u8            commands[64];
 339         __u8            hci_ver;
 340         __u16           hci_rev;
 341         __u8            lmp_ver;
 342         __u16           manufacturer;
 343         __u16           lmp_subver;
 344         __u16           voice_setting;
 345         __u8            num_iac;
 346         __u8            stored_max_keys;
 347         __u8            stored_num_keys;
 348         __u8            io_capability;
 349         __s8            inq_tx_power;
 350         __u8            err_data_reporting;
 351         __u16           page_scan_interval;
 352         __u16           page_scan_window;
 353         __u8            page_scan_type;
 354         __u8            le_adv_channel_map;
 355         __u16           le_adv_min_interval;
 356         __u16           le_adv_max_interval;
 357         __u8            le_scan_type;
 358         __u16           le_scan_interval;
 359         __u16           le_scan_window;
 360         __u16           le_scan_int_suspend;
 361         __u16           le_scan_window_suspend;
 362         __u16           le_scan_int_discovery;
 363         __u16           le_scan_window_discovery;
 364         __u16           le_scan_int_adv_monitor;
 365         __u16           le_scan_window_adv_monitor;
 366         __u16           le_scan_int_connect;
 367         __u16           le_scan_window_connect;
 368         __u16           le_conn_min_interval;
 369         __u16           le_conn_max_interval;
 370         __u16           le_conn_latency;
 371         __u16           le_supv_timeout;
 372         __u16           le_def_tx_len;
 373         __u16           le_def_tx_time;
 374         __u16           le_max_tx_len;
 375         __u16           le_max_tx_time;
 376         __u16           le_max_rx_len;
 377         __u16           le_max_rx_time;
 378         __u8            le_max_key_size;
 379         __u8            le_min_key_size;
 380         __u16           discov_interleaved_timeout;
 381         __u16           conn_info_min_age;
 382         __u16           conn_info_max_age;
 383         __u16           auth_payload_timeout;
 384         __u8            min_enc_key_size;
 385         __u8            max_enc_key_size;
 386         __u8            pairing_opts;
 387         __u8            ssp_debug_mode;
 388         __u8            hw_error_code;
 389         __u32           clock;
 390         __u16           advmon_allowlist_duration;
 391         __u16           advmon_no_filter_duration;
 392         __u8            enable_advmon_interleave_scan;
 393
 394         __u16           devid_source;
 395         __u16           devid_vendor;
 396         __u16           devid_product;
 397         __u16           devid_version;
 398
 399         __u8            def_page_scan_type;
 400         __u16           def_page_scan_int;
 401         __u16           def_page_scan_window;
 402         __u8            def_inq_scan_type;
 403         __u16           def_inq_scan_int;
 404         __u16           def_inq_scan_window;
 405         __u16           def_br_lsto;
 406         __u16           def_page_timeout;
 407         __u16           def_multi_adv_rotation_duration;
 408         __u16           def_le_autoconnect_timeout;
 409         __s8            min_le_tx_power;
 410         __s8            max_le_tx_power;
 411
 412         __u16           pkt_type;
 413         __u16           esco_type;
 414         __u16           link_policy;
 415         __u16           link_mode;
 416
 417         __u32           idle_timeout;
 418         __u16           sniff_min_interval;
 419         __u16           sniff_max_interval;
 420
 421         __u8            amp_status;
 422         __u32           amp_total_bw;
 423         __u32           amp_max_bw;
 424         __u32           amp_min_latency;
 425         __u32           amp_max_pdu;
 426         __u8            amp_type;
 427         __u16           amp_pal_cap;
 428         __u16           amp_assoc_size;
 429         __u32           amp_max_flush_to;
 430         __u32           amp_be_flush_to;
 431
 432         struct amp_assoc        loc_assoc;
 433
 434         __u8            flow_ctl_mode;
 435
 436         unsigned int    auto_accept_delay;
 437
 438         unsigned long   quirks;
 439
 440         atomic_t        cmd_cnt;
 441         unsigned int    acl_cnt;
 442         unsigned int    sco_cnt;
 443         unsigned int    le_cnt;
 444
 445         unsigned int    acl_mtu;
 446         unsigned int    sco_mtu;
 447         unsigned int    le_mtu;
 448         unsigned int    acl_pkts;
 449         unsigned int    sco_pkts;
 450         unsigned int    le_pkts;
 451
 452         __u16           block_len;
 453         __u16           block_mtu;
 454         __u16           num_blocks;
 455         __u16           block_cnt;
 456
 457         unsigned long   acl_last_tx;
 458         unsigned long   sco_last_tx;
 459         unsigned long   le_last_tx;
 460
 461         __u8            le_tx_def_phys;
 462         __u8            le_rx_def_phys;
 463
 464         struct workqueue_struct *workqueue;
 465         struct workqueue_struct *req_workqueue;
 466
 467         struct work_struct      power_on;
 468         struct delayed_work     power_off;
 469         struct work_struct      error_reset;
 470
 471         __u16                   discov_timeout;
 472         struct delayed_work     discov_off;
 473
 474         struct delayed_work     service_cache;
 475
 476         struct delayed_work     cmd_timer;
 477         struct delayed_work     ncmd_timer;
 478
 479         struct work_struct      rx_work;
 480         struct work_struct      cmd_work;
 481         struct work_struct      tx_work;
 482
 483         struct work_struct      discov_update;
 484         struct work_struct      bg_scan_update;
 485         struct work_struct      scan_update;
 486         struct work_struct      connectable_update;
 487         struct work_struct      discoverable_update;
 488         struct delayed_work     le_scan_disable;
 489         struct delayed_work     le_scan_restart;
 490
 491         struct sk_buff_head     rx_q;
 492         struct sk_buff_head     raw_q;
 493         struct sk_buff_head     cmd_q;
 494
 495         struct sk_buff          *sent_cmd;
 496
 497         struct mutex            req_lock;
 498         wait_queue_head_t       req_wait_q;
 499         __u32                   req_status;
 500         __u32                   req_result;
 501         struct sk_buff          *req_skb;
 502
 503         void                    *smp_data;
 504         void                    *smp_bredr_data;
 505
 506         struct discovery_state  discovery;
 507
 508         int                     discovery_old_state;
 509         bool                    discovery_paused;
 510         int                     advertising_old_state;
 511         bool                    advertising_paused;
 512
 513         struct notifier_block   suspend_notifier;
 514         struct work_struct      suspend_prepare;
 515         enum suspended_state    suspend_state_next;
 516         enum suspended_state    suspend_state;
 517         bool                    scanning_paused;
 518         bool                    suspended;
 519         u8                      wake_reason;
 520         bdaddr_t                wake_addr;
 521         u8                      wake_addr_type;
 522
 523         wait_queue_head_t       suspend_wait_q;
 524         DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS);
 525
 526         struct hci_conn_hash    conn_hash;
 527
 528         struct list_head        mgmt_pending;
 529         struct list_head        reject_list;
 530         struct list_head        accept_list;
 531         struct list_head        uuids;
 532         struct list_head        link_keys;
 533         struct list_head        long_term_keys;
 534         struct list_head        identity_resolving_keys;
 535         struct list_head        remote_oob_data;
 536         struct list_head        le_accept_list;
 537         struct list_head        le_resolv_list;
 538         struct list_head        le_conn_params;
 539         struct list_head        pend_le_conns;
 540         struct list_head        pend_le_reports;
 541         struct list_head        blocked_keys;
 542
 543         struct hci_dev_stats    stat;
 544
 545         atomic_t                promisc;
 546
 547         const char              *hw_info;
 548         const char              *fw_info;
 549         struct dentry           *debugfs;
 550
 551         struct device           dev;
 552
 553         struct rfkill           *rfkill;
 554
 555         DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS);
 556
 557         __s8                    adv_tx_power;
 558         __u8                    adv_data[HCI_MAX_EXT_AD_LENGTH];
 559         __u8                    adv_data_len;
 560         __u8                    scan_rsp_data[HCI_MAX_EXT_AD_LENGTH];
 561         __u8                    scan_rsp_data_len;
 562
 563         struct list_head        adv_instances;
 564         unsigned int            adv_instance_cnt;
 565         __u8                    cur_adv_instance;
 566         __u16                   adv_instance_timeout;
 567         struct delayed_work     adv_instance_expire;
 568
 569         struct idr              adv_monitors_idr;
 570         unsigned int            adv_monitors_cnt;
 571
 572         __u8                    irk[16];
 573         __u32                   rpa_timeout;
 574         struct delayed_work     rpa_expired;
 575         bdaddr_t                rpa;
 576
 577         enum {
 578                 INTERLEAVE_SCAN_NONE,
 579                 INTERLEAVE_SCAN_NO_FILTER,
 580                 INTERLEAVE_SCAN_ALLOWLIST
 581         } interleave_scan_state;
 582
 583         struct delayed_work     interleave_scan;
 584
 585 #if IS_ENABLED(CONFIG_BT_LEDS)
 586         struct led_trigger      *power_led;
 587 #endif
 588
 589 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
 590         __u16                   msft_opcode;
 591         void                    *msft_data;
 592         bool                    msft_curve_validity;
 593 #endif
 594
 595 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
 596         bool                    aosp_capable;
 597 #endif
 598
 599         int (*open)(struct hci_dev *hdev);
 600         int (*close)(struct hci_dev *hdev);
 601         int (*flush)(struct hci_dev *hdev);
 602         int (*setup)(struct hci_dev *hdev);
 603         int (*shutdown)(struct hci_dev *hdev);
 604         int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 605         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 606         void (*hw_error)(struct hci_dev *hdev, u8 code);
 607         int (*post_init)(struct hci_dev *hdev);
 608         int (*set_diag)(struct hci_dev *hdev, bool enable);
 609         int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr);
 610         void (*cmd_timeout)(struct hci_dev *hdev);
 611         bool (*prevent_wake)(struct hci_dev *hdev);
 612 };
 613
 614 #define HCI_PHY_HANDLE(handle)  (handle & 0xff)
 615
 616 enum conn_reasons {
 617         CONN_REASON_PAIR_DEVICE,
 618         CONN_REASON_L2CAP_CHAN,
 619         CONN_REASON_SCO_CONNECT,
 620 };
 621
 622 struct hci_conn {
 623         struct list_head list;
 624
 625         atomic_t        refcnt;
 626
 627         bdaddr_t        dst;
 628         __u8            dst_type;
 629         bdaddr_t        src;
 630         __u8            src_type;
 631         bdaddr_t        init_addr;
 632         __u8            init_addr_type;
 633         bdaddr_t        resp_addr;
 634         __u8            resp_addr_type;
 635         __u8            adv_instance;
 636         __u16           handle;
 637         __u16           state;
 638         __u8            mode;
 639         __u8            type;
 640         __u8            role;
 641         bool            out;
 642         __u8            attempt;
 643         __u8            dev_class[3];
 644         __u8            features[HCI_MAX_PAGES][8];
 645         __u16           pkt_type;
 646         __u16           link_policy;
 647         __u8            key_type;
 648         __u8            auth_type;
 649         __u8            sec_level;
 650         __u8            pending_sec_level;
 651         __u8            pin_length;
 652         __u8            enc_key_size;
 653         __u8            io_capability;
 654         __u32           passkey_notify;
 655         __u8            passkey_entered;
 656         __u16           disc_timeout;
 657         __u16           conn_timeout;
 658         __u16           setting;
 659         __u16           auth_payload_timeout;
 660         __u16           le_conn_min_interval;
 661         __u16           le_conn_max_interval;
 662         __u16           le_conn_interval;
 663         __u16           le_conn_latency;
 664         __u16           le_supv_timeout;
 665         __u8            le_adv_data[HCI_MAX_AD_LENGTH];
 666         __u8            le_adv_data_len;
 667         __u8            le_tx_phy;
 668         __u8            le_rx_phy;
 669         __s8            rssi;
 670         __s8            tx_power;
 671         __s8            max_tx_power;
 672         unsigned long   flags;
 673
 674         enum conn_reasons conn_reason;
 675
 676         __u32           clock;
 677         __u16           clock_accuracy;
 678
 679         unsigned long   conn_info_timestamp;
 680
 681         __u8            remote_cap;
 682         __u8            remote_auth;
 683         __u8            remote_id;
 684
 685         unsigned int    sent;
 686
 687         struct sk_buff_head data_q;
 688         struct list_head chan_list;
 689
 690         struct delayed_work disc_work;
 691         struct delayed_work auto_accept_work;
 692         struct delayed_work idle_work;
 693         struct delayed_work le_conn_timeout;
 694         struct work_struct  le_scan_cleanup;
 695
 696         struct device   dev;
 697         struct dentry   *debugfs;
 698
 699         struct hci_dev  *hdev;
 700         void            *l2cap_data;
 701         void            *sco_data;
 702         struct amp_mgr  *amp_mgr;
 703
 704         struct hci_conn *link;
 705
 706         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 707         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 708         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 709 };
 710
 711 struct hci_chan {
 712         struct list_head list;
 713         __u16 handle;
 714         struct hci_conn *conn;
 715         struct sk_buff_head data_q;
 716         unsigned int    sent;
 717         __u8            state;
 718         bool            amp;
 719 };
 720
 721 struct hci_conn_params {
 722         struct list_head list;
 723         struct list_head action;
 724
 725         bdaddr_t addr;
 726         u8 addr_type;
 727
 728         u16 conn_min_interval;
 729         u16 conn_max_interval;
 730         u16 conn_latency;
 731         u16 supervision_timeout;
 732
 733         enum {
 734                 HCI_AUTO_CONN_DISABLED,
 735                 HCI_AUTO_CONN_REPORT,
 736                 HCI_AUTO_CONN_DIRECT,
 737                 HCI_AUTO_CONN_ALWAYS,
 738                 HCI_AUTO_CONN_LINK_LOSS,
 739                 HCI_AUTO_CONN_EXPLICIT,
 740         } auto_connect;
 741
 742         struct hci_conn *conn;
 743         bool explicit_connect;
 744         u32 current_flags;
 745 };
 746
 747 extern struct list_head hci_dev_list;
 748 extern struct list_head hci_cb_list;
 749 extern rwlock_t hci_dev_list_lock;
 750 extern struct mutex hci_cb_list_lock;
 751
 752 #define hci_dev_set_flag(hdev, nr)             set_bit((nr), (hdev)->dev_flags)
 753 #define hci_dev_clear_flag(hdev, nr)           clear_bit((nr), (hdev)->dev_flags)
 754 #define hci_dev_change_flag(hdev, nr)          change_bit((nr), (hdev)->dev_flags)
 755 #define hci_dev_test_flag(hdev, nr)            test_bit((nr), (hdev)->dev_flags)
 756 #define hci_dev_test_and_set_flag(hdev, nr)    test_and_set_bit((nr), (hdev)->dev_flags)
 757 #define hci_dev_test_and_clear_flag(hdev, nr)  test_and_clear_bit((nr), (hdev)->dev_flags)
 758 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags)
 759
 760 #define hci_dev_clear_volatile_flags(hdev)                      \
 761         do {                                                    \
 762                 hci_dev_clear_flag(hdev, HCI_LE_SCAN);          \
 763                 hci_dev_clear_flag(hdev, HCI_LE_ADV);           \
 764                 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\
 765                 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ);     \
 766         } while (0)
 767
 768 /* ----- HCI interface to upper protocols ----- */
 769 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
 770 int l2cap_disconn_ind(struct hci_conn *hcon);
 771 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
 772
 773 #if IS_ENABLED(CONFIG_BT_BREDR)
 774 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
 775 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 776 #else
 777 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 778                                   __u8 *flags)
 779 {
 780         return 0;
 781 }
 782
 783 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb)
 784 {
 785 }
 786 #endif
 787
 788 /* ----- Inquiry cache ----- */
 789 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 790 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 791
 792 static inline void discovery_init(struct hci_dev *hdev)
 793 {
 794         hdev->discovery.state = DISCOVERY_STOPPED;
 795         INIT_LIST_HEAD(&hdev->discovery.all);
 796         INIT_LIST_HEAD(&hdev->discovery.unknown);
 797         INIT_LIST_HEAD(&hdev->discovery.resolve);
 798         hdev->discovery.report_invalid_rssi = true;
 799         hdev->discovery.rssi = HCI_RSSI_INVALID;
 800 }
 801
 802 static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
 803 {
 804         hdev->discovery.result_filtering = false;
 805         hdev->discovery.report_invalid_rssi = true;
 806         hdev->discovery.rssi = HCI_RSSI_INVALID;
 807         hdev->discovery.uuid_count = 0;
 808         kfree(hdev->discovery.uuids);
 809         hdev->discovery.uuids = NULL;
 810         hdev->discovery.scan_start = 0;
 811         hdev->discovery.scan_duration = 0;
 812 }
 813
 814 bool hci_discovery_active(struct hci_dev *hdev);
 815
 816 void hci_discovery_set_state(struct hci_dev *hdev, int state);
 817
 818 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 819 {
 820         return list_empty(&hdev->discovery.all);
 821 }
 822
 823 static inline long inquiry_cache_age(struct hci_dev *hdev)
 824 {
 825         struct discovery_state *c = &hdev->discovery;
 826         return jiffies - c->timestamp;
 827 }
 828
 829 static inline long inquiry_entry_age(struct inquiry_entry *e)
 830 {
 831         return jiffies - e->timestamp;
 832 }
 833
 834 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 835                                                bdaddr_t *bdaddr);
 836 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
 837                                                        bdaddr_t *bdaddr);
 838 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
 839                                                        bdaddr_t *bdaddr,
 840                                                        int state);
 841 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
 842                                       struct inquiry_entry *ie);
 843 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
 844                              bool name_known);
 845 void hci_inquiry_cache_flush(struct hci_dev *hdev);
 846
 847 /* ----- HCI Connections ----- */
 848 enum {
 849         HCI_CONN_AUTH_PEND,
 850         HCI_CONN_REAUTH_PEND,
 851         HCI_CONN_ENCRYPT_PEND,
 852         HCI_CONN_RSWITCH_PEND,
 853         HCI_CONN_MODE_CHANGE_PEND,
 854         HCI_CONN_SCO_SETUP_PEND,
 855         HCI_CONN_MGMT_CONNECTED,
 856         HCI_CONN_SSP_ENABLED,
 857         HCI_CONN_SC_ENABLED,
 858         HCI_CONN_AES_CCM,
 859         HCI_CONN_POWER_SAVE,
 860         HCI_CONN_FLUSH_KEY,
 861         HCI_CONN_ENCRYPT,
 862         HCI_CONN_AUTH,
 863         HCI_CONN_SECURE,
 864         HCI_CONN_FIPS,
 865         HCI_CONN_STK_ENCRYPT,
 866         HCI_CONN_AUTH_INITIATOR,
 867         HCI_CONN_DROP,
 868         HCI_CONN_PARAM_REMOVAL_PEND,
 869         HCI_CONN_NEW_LINK_KEY,
 870         HCI_CONN_SCANNING,
 871         HCI_CONN_AUTH_FAILURE,
 872 };
 873
 874 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
 875 {
 876         struct hci_dev *hdev = conn->hdev;
 877         return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
 878                test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
 879 }
 880
 881 static inline bool hci_conn_sc_enabled(struct hci_conn *conn)
 882 {
 883         struct hci_dev *hdev = conn->hdev;
 884         return hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
 885                test_bit(HCI_CONN_SC_ENABLED, &conn->flags);
 886 }
 887
 888 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 889 {
 890         struct hci_conn_hash *h = &hdev->conn_hash;
 891         list_add_rcu(&c->list, &h->list);
 892         switch (c->type) {
 893         case ACL_LINK:
 894                 h->acl_num++;
 895                 break;
 896         case AMP_LINK:
 897                 h->amp_num++;
 898                 break;
 899         case LE_LINK:
 900                 h->le_num++;
 901                 if (c->role == HCI_ROLE_SLAVE)
 902                         h->le_num_peripheral++;
 903                 break;
 904         case SCO_LINK:
 905         case ESCO_LINK:
 906                 h->sco_num++;
 907                 break;
 908         }
 909 }
 910
 911 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 912 {
 913         struct hci_conn_hash *h = &hdev->conn_hash;
 914
 915         list_del_rcu(&c->list);
 916         synchronize_rcu();
 917
 918         switch (c->type) {
 919         case ACL_LINK:
 920                 h->acl_num--;
 921                 break;
 922         case AMP_LINK:
 923                 h->amp_num--;
 924                 break;
 925         case LE_LINK:
 926                 h->le_num--;
 927                 if (c->role == HCI_ROLE_SLAVE)
 928                         h->le_num_peripheral--;
 929                 break;
 930         case SCO_LINK:
 931         case ESCO_LINK:
 932                 h->sco_num--;
 933                 break;
 934         }
 935 }
 936
 937 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 938 {
 939         struct hci_conn_hash *h = &hdev->conn_hash;
 940         switch (type) {
 941         case ACL_LINK:
 942                 return h->acl_num;
 943         case AMP_LINK:
 944                 return h->amp_num;
 945         case LE_LINK:
 946                 return h->le_num;
 947         case SCO_LINK:
 948         case ESCO_LINK:
 949                 return h->sco_num;
 950         default:
 951                 return 0;
 952         }
 953 }
 954
 955 static inline unsigned int hci_conn_count(struct hci_dev *hdev)
 956 {
 957         struct hci_conn_hash *c = &hdev->conn_hash;
 958
 959         return c->acl_num + c->amp_num + c->sco_num + c->le_num;
 960 }
 961
 962 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle)
 963 {
 964         struct hci_conn_hash *h = &hdev->conn_hash;
 965         struct hci_conn *c;
 966         __u8 type = INVALID_LINK;
 967
 968         rcu_read_lock();
 969
 970         list_for_each_entry_rcu(c, &h->list, list) {
 971                 if (c->handle == handle) {
 972                         type = c->type;
 973                         break;
 974                 }
 975         }
 976
 977         rcu_read_unlock();
 978
 979         return type;
 980 }
 981
 982 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 983                                                                 __u16 handle)
 984 {
 985         struct hci_conn_hash *h = &hdev->conn_hash;
 986         struct hci_conn  *c;
 987
 988         rcu_read_lock();
 989
 990         list_for_each_entry_rcu(c, &h->list, list) {
 991                 if (c->handle == handle) {
 992                         rcu_read_unlock();
 993                         return c;
 994                 }
 995         }
 996         rcu_read_unlock();
 997
 998         return NULL;
 999 }
1000
1001 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
1002                                                         __u8 type, bdaddr_t *ba)
1003 {
1004         struct hci_conn_hash *h = &hdev->conn_hash;
1005         struct hci_conn  *c;
1006
1007         rcu_read_lock();
1008
1009         list_for_each_entry_rcu(c, &h->list, list) {
1010                 if (c->type == type && !bacmp(&c->dst, ba)) {
1011                         rcu_read_unlock();
1012                         return c;
1013                 }
1014         }
1015
1016         rcu_read_unlock();
1017
1018         return NULL;
1019 }
1020
1021 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev,
1022                                                        bdaddr_t *ba,
1023                                                        __u8 ba_type)
1024 {
1025         struct hci_conn_hash *h = &hdev->conn_hash;
1026         struct hci_conn  *c;
1027
1028         rcu_read_lock();
1029
1030         list_for_each_entry_rcu(c, &h->list, list) {
1031                 if (c->type != LE_LINK)
1032                        continue;
1033
1034                 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
1035                         rcu_read_unlock();
1036                         return c;
1037                 }
1038         }
1039
1040         rcu_read_unlock();
1041
1042         return NULL;
1043 }
1044
1045 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
1046                                                         __u8 type, __u16 state)
1047 {
1048         struct hci_conn_hash *h = &hdev->conn_hash;
1049         struct hci_conn  *c;
1050
1051         rcu_read_lock();
1052
1053         list_for_each_entry_rcu(c, &h->list, list) {
1054                 if (c->type == type && c->state == state) {
1055                         rcu_read_unlock();
1056                         return c;
1057                 }
1058         }
1059
1060         rcu_read_unlock();
1061
1062         return NULL;
1063 }
1064
1065 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev)
1066 {
1067         struct hci_conn_hash *h = &hdev->conn_hash;
1068         struct hci_conn  *c;
1069
1070         rcu_read_lock();
1071
1072         list_for_each_entry_rcu(c, &h->list, list) {
1073                 if (c->type == LE_LINK && c->state == BT_CONNECT &&
1074                     !test_bit(HCI_CONN_SCANNING, &c->flags)) {
1075                         rcu_read_unlock();
1076                         return c;
1077                 }
1078         }
1079
1080         rcu_read_unlock();
1081
1082         return NULL;
1083 }
1084
1085 int hci_disconnect(struct hci_conn *conn, __u8 reason);
1086 bool hci_setup_sync(struct hci_conn *conn, __u16 handle);
1087 void hci_sco_setup(struct hci_conn *conn, __u8 status);
1088
1089 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst,
1090                               u8 role);
1091 int hci_conn_del(struct hci_conn *conn);
1092 void hci_conn_hash_flush(struct hci_dev *hdev);
1093 void hci_conn_check_pending(struct hci_dev *hdev);
1094
1095 struct hci_chan *hci_chan_create(struct hci_conn *conn);
1096 void hci_chan_del(struct hci_chan *chan);
1097 void hci_chan_list_flush(struct hci_conn *conn);
1098 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
1099
1100 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst,
1101                                      u8 dst_type, u8 sec_level,
1102                                      u16 conn_timeout,
1103                                      enum conn_reasons conn_reason);
1104 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
1105                                 u8 dst_type, u8 sec_level, u16 conn_timeout,
1106                                 u8 role, bdaddr_t *direct_rpa);
1107 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
1108                                  u8 sec_level, u8 auth_type,
1109                                  enum conn_reasons conn_reason);
1110 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
1111                                  __u16 setting);
1112 int hci_conn_check_link_mode(struct hci_conn *conn);
1113 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
1114 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type,
1115                       bool initiator);
1116 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1117
1118 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
1119
1120 void hci_le_conn_failed(struct hci_conn *conn, u8 status);
1121
1122 /*
1123  * hci_conn_get() and hci_conn_put() are used to control the life-time of an
1124  * "hci_conn" object. They do not guarantee that the hci_conn object is running,
1125  * working or anything else. They just guarantee that the object is available
1126  * and can be dereferenced. So you can use its locks, local variables and any
1127  * other constant data.
1128  * Before accessing runtime data, you _must_ lock the object and then check that
1129  * it is still running. As soon as you release the locks, the connection might
1130  * get dropped, though.
1131  *
1132  * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
1133  * how long the underlying connection is held. So every channel that runs on the
1134  * hci_conn object calls this to prevent the connection from disappearing. As
1135  * long as you hold a device, you must also guarantee that you have a valid
1136  * reference to the device via hci_conn_get() (or the initial reference from
1137  * hci_conn_add()).
1138  * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
1139  * break because nobody cares for that. But this means, we cannot use
1140  * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
1141  */
1142
1143 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn)
1144 {
1145         get_device(&conn->dev);
1146         return conn;
1147 }
1148
1149 static inline void hci_conn_put(struct hci_conn *conn)
1150 {
1151         put_device(&conn->dev);
1152 }
1153
1154 static inline void hci_conn_hold(struct hci_conn *conn)
1155 {
1156         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1157
1158         atomic_inc(&conn->refcnt);
1159         cancel_delayed_work(&conn->disc_work);
1160 }
1161
1162 static inline void hci_conn_drop(struct hci_conn *conn)
1163 {
1164         BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
1165
1166         if (atomic_dec_and_test(&conn->refcnt)) {
1167                 unsigned long timeo;
1168
1169                 switch (conn->type) {
1170                 case ACL_LINK:
1171                 case LE_LINK:
1172                         cancel_delayed_work(&conn->idle_work);
1173                         if (conn->state == BT_CONNECTED) {
1174                                 timeo = conn->disc_timeout;
1175                                 if (!conn->out)
1176                                         timeo *= 2;
1177                         } else {
1178                                 timeo = 0;
1179                         }
1180                         break;
1181
1182                 case AMP_LINK:
1183                         timeo = conn->disc_timeout;
1184                         break;
1185
1186                 default:
1187                         timeo = 0;
1188                         break;
1189                 }
1190
1191                 cancel_delayed_work(&conn->disc_work);
1192                 queue_delayed_work(conn->hdev->workqueue,
1193                                    &conn->disc_work, timeo);
1194         }
1195 }
1196
1197 /* ----- HCI Devices ----- */
1198 static inline void hci_dev_put(struct hci_dev *d)
1199 {
1200         BT_DBG("%s orig refcnt %d", d->name,
1201                kref_read(&d->dev.kobj.kref));
1202
1203         put_device(&d->dev);
1204 }
1205
1206 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
1207 {
1208         BT_DBG("%s orig refcnt %d", d->name,
1209                kref_read(&d->dev.kobj.kref));
1210
1211         get_device(&d->dev);
1212         return d;
1213 }
1214
1215 #define hci_dev_lock(d)         mutex_lock(&d->lock)
1216 #define hci_dev_unlock(d)       mutex_unlock(&d->lock)
1217
1218 #define to_hci_dev(d) container_of(d, struct hci_dev, dev)
1219 #define to_hci_conn(c) container_of(c, struct hci_conn, dev)
1220
1221 static inline void *hci_get_drvdata(struct hci_dev *hdev)
1222 {
1223         return dev_get_drvdata(&hdev->dev);
1224 }
1225
1226 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
1227 {
1228         dev_set_drvdata(&hdev->dev, data);
1229 }
1230
1231 static inline void *hci_get_priv(struct hci_dev *hdev)
1232 {
1233         return (char *)hdev + sizeof(*hdev);
1234 }
1235
1236 struct hci_dev *hci_dev_get(int index);
1237 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type);
1238
1239 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv);
1240
1241 static inline struct hci_dev *hci_alloc_dev(void)
1242 {
1243         return hci_alloc_dev_priv(0);
1244 }
1245
1246 void hci_free_dev(struct hci_dev *hdev);
1247 int hci_register_dev(struct hci_dev *hdev);
1248 void hci_unregister_dev(struct hci_dev *hdev);
1249 void hci_release_dev(struct hci_dev *hdev);
1250 int hci_suspend_dev(struct hci_dev *hdev);
1251 int hci_resume_dev(struct hci_dev *hdev);
1252 int hci_reset_dev(struct hci_dev *hdev);
1253 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
1254 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb);
1255 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...);
1256 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...);
1257
1258 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode)
1259 {
1260 #if IS_ENABLED(CONFIG_BT_MSFTEXT)
1261         hdev->msft_opcode = opcode;
1262 #endif
1263 }
1264
1265 static inline void hci_set_aosp_capable(struct hci_dev *hdev)
1266 {
1267 #if IS_ENABLED(CONFIG_BT_AOSPEXT)
1268         hdev->aosp_capable = true;
1269 #endif
1270 }
1271
1272 int hci_dev_open(__u16 dev);
1273 int hci_dev_close(__u16 dev);
1274 int hci_dev_do_close(struct hci_dev *hdev);
1275 int hci_dev_reset(__u16 dev);
1276 int hci_dev_reset_stat(__u16 dev);
1277 int hci_dev_cmd(unsigned int cmd, void __user *arg);
1278 int hci_get_dev_list(void __user *arg);
1279 int hci_get_dev_info(void __user *arg);
1280 int hci_get_conn_list(void __user *arg);
1281 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
1282 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
1283 int hci_inquiry(void __user *arg);
1284
1285 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list,
1286                                            bdaddr_t *bdaddr, u8 type);
1287 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk(
1288                                     struct list_head *list, bdaddr_t *bdaddr,
1289                                     u8 type);
1290 struct bdaddr_list_with_flags *
1291 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1292                                   u8 type);
1293 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1294 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1295                                  u8 type, u8 *peer_irk, u8 *local_irk);
1296 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1297                                    u8 type, u32 flags);
1298 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type);
1299 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr,
1300                                  u8 type);
1301 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr,
1302                                    u8 type);
1303 void hci_bdaddr_list_clear(struct list_head *list);
1304
1305 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev,
1306                                                bdaddr_t *addr, u8 addr_type);
1307 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev,
1308                                             bdaddr_t *addr, u8 addr_type);
1309 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type);
1310 void hci_conn_params_clear_disabled(struct hci_dev *hdev);
1311
1312 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list,
1313                                                   bdaddr_t *addr,
1314                                                   u8 addr_type);
1315
1316 void hci_uuids_clear(struct hci_dev *hdev);
1317
1318 void hci_link_keys_clear(struct hci_dev *hdev);
1319 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1320 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn,
1321                                   bdaddr_t *bdaddr, u8 *val, u8 type,
1322                                   u8 pin_len, bool *persistent);
1323 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1324                             u8 addr_type, u8 type, u8 authenticated,
1325                             u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand);
1326 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1327                              u8 addr_type, u8 role);
1328 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type);
1329 void hci_smp_ltks_clear(struct hci_dev *hdev);
1330 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
1331
1332 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa);
1333 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
1334                                      u8 addr_type);
1335 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr,
1336                             u8 addr_type, u8 val[16], bdaddr_t *rpa);
1337 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type);
1338 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]);
1339 void hci_blocked_keys_clear(struct hci_dev *hdev);
1340 void hci_smp_irks_clear(struct hci_dev *hdev);
1341
1342 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1343
1344 void hci_remote_oob_data_clear(struct hci_dev *hdev);
1345 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
1346                                           bdaddr_t *bdaddr, u8 bdaddr_type);
1347 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1348                             u8 bdaddr_type, u8 *hash192, u8 *rand192,
1349                             u8 *hash256, u8 *rand256);
1350 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr,
1351                                u8 bdaddr_type);
1352
1353 void hci_adv_instances_clear(struct hci_dev *hdev);
1354 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance);
1355 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance);
1356 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags,
1357                          u16 adv_data_len, u8 *adv_data,
1358                          u16 scan_rsp_len, u8 *scan_rsp_data,
1359                          u16 timeout, u16 duration, s8 tx_power,
1360                          u32 min_interval, u32 max_interval);
1361 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance,
1362                          u16 adv_data_len, u8 *adv_data,
1363                          u16 scan_rsp_len, u8 *scan_rsp_data);
1364 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance);
1365 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
1366
1367 void hci_adv_monitors_clear(struct hci_dev *hdev);
1368 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
1369 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1370 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1371 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
1372                         int *err);
1373 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
1374 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
1375 bool hci_is_adv_monitoring(struct hci_dev *hdev);
1376 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
1377
1378 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
1379
1380 void hci_init_sysfs(struct hci_dev *hdev);
1381 void hci_conn_init_sysfs(struct hci_conn *conn);
1382 void hci_conn_add_sysfs(struct hci_conn *conn);
1383 void hci_conn_del_sysfs(struct hci_conn *conn);
1384
1385 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
1386
1387 /* ----- LMP capabilities ----- */
1388 #define lmp_encrypt_capable(dev)   ((dev)->features[0][0] & LMP_ENCRYPT)
1389 #define lmp_rswitch_capable(dev)   ((dev)->features[0][0] & LMP_RSWITCH)
1390 #define lmp_hold_capable(dev)      ((dev)->features[0][0] & LMP_HOLD)
1391 #define lmp_sniff_capable(dev)     ((dev)->features[0][0] & LMP_SNIFF)
1392 #define lmp_park_capable(dev)      ((dev)->features[0][1] & LMP_PARK)
1393 #define lmp_inq_rssi_capable(dev)  ((dev)->features[0][3] & LMP_RSSI_INQ)
1394 #define lmp_esco_capable(dev)      ((dev)->features[0][3] & LMP_ESCO)
1395 #define lmp_bredr_capable(dev)     (!((dev)->features[0][4] & LMP_NO_BREDR))
1396 #define lmp_le_capable(dev)        ((dev)->features[0][4] & LMP_LE)
1397 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
1398 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
1399 #define lmp_esco_2m_capable(dev)   ((dev)->features[0][5] & LMP_EDR_ESCO_2M)
1400 #define lmp_ext_inq_capable(dev)   ((dev)->features[0][6] & LMP_EXT_INQ)
1401 #define lmp_le_br_capable(dev)     (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
1402 #define lmp_ssp_capable(dev)       ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
1403 #define lmp_no_flush_capable(dev)  ((dev)->features[0][6] & LMP_NO_FLUSH)
1404 #define lmp_lsto_capable(dev)      ((dev)->features[0][7] & LMP_LSTO)
1405 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
1406 #define lmp_ext_feat_capable(dev)  ((dev)->features[0][7] & LMP_EXTFEATURES)
1407 #define lmp_transp_capable(dev)    ((dev)->features[0][2] & LMP_TRANSPARENT)
1408 #define lmp_edr_2m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_2M)
1409 #define lmp_edr_3m_capable(dev)    ((dev)->features[0][3] & LMP_EDR_3M)
1410 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT)
1411 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT)
1412
1413 /* ----- Extended LMP capabilities ----- */
1414 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL)
1415 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL)
1416 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN)
1417 #define lmp_sync_scan_capable(dev)  ((dev)->features[2][0] & LMP_SYNC_SCAN)
1418 #define lmp_sc_capable(dev)         ((dev)->features[2][1] & LMP_SC)
1419 #define lmp_ping_capable(dev)       ((dev)->features[2][1] & LMP_PING)
1420
1421 /* ----- Host capabilities ----- */
1422 #define lmp_host_ssp_capable(dev)  ((dev)->features[1][0] & LMP_HOST_SSP)
1423 #define lmp_host_sc_capable(dev)   ((dev)->features[1][0] & LMP_HOST_SC)
1424 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
1425 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
1426
1427 #define hdev_is_powered(dev)   (test_bit(HCI_UP, &(dev)->flags) && \
1428                                 !hci_dev_test_flag(dev, HCI_AUTO_OFF))
1429 #define bredr_sc_enabled(dev)  (lmp_sc_capable(dev) && \
1430                                 hci_dev_test_flag(dev, HCI_SC_ENABLED))
1431 #define rpa_valid(dev)         (bacmp(&dev->rpa, BDADDR_ANY) && \
1432                                 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED))
1433 #define adv_rpa_valid(adv)     (bacmp(&adv->random_addr, BDADDR_ANY) && \
1434                                 !adv->rpa_expired)
1435
1436 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \
1437                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M))
1438
1439 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \
1440                       ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M))
1441
1442 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \
1443                          ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED))
1444
1445 /* Use LL Privacy based address resolution if supported */
1446 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY)
1447
1448 /* Use ext scanning if set ext scan param and ext scan enable is supported */
1449 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \
1450                            ((dev)->commands[37] & 0x40))
1451 /* Use ext create connection if command is supported */
1452 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)
1453
1454 /* Extended advertising support */
1455 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
1456
1457 /* ----- HCI protocols ----- */
1458 #define HCI_PROTO_DEFER             0x01
1459
1460 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
1461                                         __u8 type, __u8 *flags)
1462 {
1463         switch (type) {
1464         case ACL_LINK:
1465                 return l2cap_connect_ind(hdev, bdaddr);
1466
1467         case SCO_LINK:
1468         case ESCO_LINK:
1469                 return sco_connect_ind(hdev, bdaddr, flags);
1470
1471         default:
1472                 BT_ERR("unknown link type %d", type);
1473                 return -EINVAL;
1474         }
1475 }
1476
1477 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1478 {
1479         if (conn->type != ACL_LINK && conn->type != LE_LINK)
1480                 return HCI_ERROR_REMOTE_USER_TERM;
1481
1482         return l2cap_disconn_ind(conn);
1483 }
1484
1485 /* ----- HCI callbacks ----- */
1486 struct hci_cb {
1487         struct list_head list;
1488
1489         char *name;
1490
1491         void (*connect_cfm)     (struct hci_conn *conn, __u8 status);
1492         void (*disconn_cfm)     (struct hci_conn *conn, __u8 status);
1493         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
1494                                                                 __u8 encrypt);
1495         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
1496         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
1497 };
1498
1499 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status)
1500 {
1501         struct hci_cb *cb;
1502
1503         mutex_lock(&hci_cb_list_lock);
1504         list_for_each_entry(cb, &hci_cb_list, list) {
1505                 if (cb->connect_cfm)
1506                         cb->connect_cfm(conn, status);
1507         }
1508         mutex_unlock(&hci_cb_list_lock);
1509
1510         if (conn->connect_cfm_cb)
1511                 conn->connect_cfm_cb(conn, status);
1512 }
1513
1514 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason)
1515 {
1516         struct hci_cb *cb;
1517
1518         mutex_lock(&hci_cb_list_lock);
1519         list_for_each_entry(cb, &hci_cb_list, list) {
1520                 if (cb->disconn_cfm)
1521                         cb->disconn_cfm(conn, reason);
1522         }
1523         mutex_unlock(&hci_cb_list_lock);
1524
1525         if (conn->disconn_cfm_cb)
1526                 conn->disconn_cfm_cb(conn, reason);
1527 }
1528
1529 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
1530 {
1531         struct hci_cb *cb;
1532         __u8 encrypt;
1533
1534         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
1535                 return;
1536
1537         encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00;
1538
1539         mutex_lock(&hci_cb_list_lock);
1540         list_for_each_entry(cb, &hci_cb_list, list) {
1541                 if (cb->security_cfm)
1542                         cb->security_cfm(conn, status, encrypt);
1543         }
1544         mutex_unlock(&hci_cb_list_lock);
1545
1546         if (conn->security_cfm_cb)
1547                 conn->security_cfm_cb(conn, status);
1548 }
1549
1550 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
1551 {
1552         struct hci_cb *cb;
1553         __u8 encrypt;
1554
1555         if (conn->state == BT_CONFIG) {
1556                 if (!status)
1557                         conn->state = BT_CONNECTED;
1558
1559                 hci_connect_cfm(conn, status);
1560                 hci_conn_drop(conn);
1561                 return;
1562         }
1563
1564         if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
1565                 encrypt = 0x00;
1566         else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
1567                 encrypt = 0x02;
1568         else
1569                 encrypt = 0x01;
1570
1571         if (!status) {
1572                 if (conn->sec_level == BT_SECURITY_SDP)
1573                         conn->sec_level = BT_SECURITY_LOW;
1574
1575                 if (conn->pending_sec_level > conn->sec_level)
1576                         conn->sec_level = conn->pending_sec_level;
1577         }
1578
1579         mutex_lock(&hci_cb_list_lock);
1580         list_for_each_entry(cb, &hci_cb_list, list) {
1581                 if (cb->security_cfm)
1582                         cb->security_cfm(conn, status, encrypt);
1583         }
1584         mutex_unlock(&hci_cb_list_lock);
1585
1586         if (conn->security_cfm_cb)
1587                 conn->security_cfm_cb(conn, status);
1588 }
1589
1590 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
1591 {
1592         struct hci_cb *cb;
1593
1594         mutex_lock(&hci_cb_list_lock);
1595         list_for_each_entry(cb, &hci_cb_list, list) {
1596                 if (cb->key_change_cfm)
1597                         cb->key_change_cfm(conn, status);
1598         }
1599         mutex_unlock(&hci_cb_list_lock);
1600 }
1601
1602 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
1603                                                                 __u8 role)
1604 {
1605         struct hci_cb *cb;
1606
1607         mutex_lock(&hci_cb_list_lock);
1608         list_for_each_entry(cb, &hci_cb_list, list) {
1609                 if (cb->role_switch_cfm)
1610                         cb->role_switch_cfm(conn, status, role);
1611         }
1612         mutex_unlock(&hci_cb_list_lock);
1613 }
1614
1615 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
1616                                  size_t *data_len)
1617 {
1618         size_t parsed = 0;
1619
1620         if (eir_len < 2)
1621                 return NULL;
1622
1623         while (parsed < eir_len - 1) {
1624                 u8 field_len = eir[0];
1625
1626                 if (field_len == 0)
1627                         break;
1628
1629                 parsed += field_len + 1;
1630
1631                 if (parsed > eir_len)
1632                         break;
1633
1634                 if (eir[1] != type) {
1635                         eir += field_len + 1;
1636                         continue;
1637                 }
1638
1639                 /* Zero length data */
1640                 if (field_len == 1)
1641                         return NULL;
1642
1643                 if (data_len)
1644                         *data_len = field_len - 1;
1645
1646                 return &eir[2];
1647         }
1648
1649         return NULL;
1650 }
1651
1652 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type)
1653 {
1654         if (addr_type != ADDR_LE_DEV_RANDOM)
1655                 return false;
1656
1657         if ((bdaddr->b[5] & 0xc0) == 0x40)
1658                return true;
1659
1660         return false;
1661 }
1662
1663 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type)
1664 {
1665         if (addr_type == ADDR_LE_DEV_PUBLIC)
1666                 return true;
1667
1668         /* Check for Random Static address type */
1669         if ((addr->b[5] & 0xc0) == 0xc0)
1670                 return true;
1671
1672         return false;
1673 }
1674
1675 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev,
1676                                           bdaddr_t *bdaddr, u8 addr_type)
1677 {
1678         if (!hci_bdaddr_is_rpa(bdaddr, addr_type))
1679                 return NULL;
1680
1681         return hci_find_irk_by_rpa(hdev, bdaddr);
1682 }
1683
1684 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency,
1685                                         u16 to_multiplier)
1686 {
1687         u16 max_latency;
1688
1689         if (min > max || min < 6 || max > 3200)
1690                 return -EINVAL;
1691
1692         if (to_multiplier < 10 || to_multiplier > 3200)
1693                 return -EINVAL;
1694
1695         if (max >= to_multiplier * 8)
1696                 return -EINVAL;
1697
1698         max_latency = (to_multiplier * 4 / max) - 1;
1699         if (latency > 499 || latency > max_latency)
1700                 return -EINVAL;
1701
1702         return 0;
1703 }
1704
1705 int hci_register_cb(struct hci_cb *hcb);
1706 int hci_unregister_cb(struct hci_cb *hcb);
1707
1708 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1709                                const void *param, u32 timeout);
1710 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
1711                                   const void *param, u8 event, u32 timeout);
1712 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen,
1713                    const void *param);
1714
1715 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1716                  const void *param);
1717 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
1718 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
1719
1720 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
1721
1722 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
1723                              const void *param, u32 timeout);
1724
1725 u32 hci_conn_get_phy(struct hci_conn *conn);
1726
1727 /* ----- HCI Sockets ----- */
1728 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1729 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb,
1730                          int flag, struct sock *skip_sk);
1731 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
1732 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event,
1733                                  void *data, u16 data_len, ktime_t tstamp,
1734                                  int flag, struct sock *skip_sk);
1735
1736 void hci_sock_dev_event(struct hci_dev *hdev, int event);
1737
1738 #define HCI_MGMT_VAR_LEN        BIT(0)
1739 #define HCI_MGMT_NO_HDEV        BIT(1)
1740 #define HCI_MGMT_UNTRUSTED      BIT(2)
1741 #define HCI_MGMT_UNCONFIGURED   BIT(3)
1742 #define HCI_MGMT_HDEV_OPTIONAL  BIT(4)
1743
1744 struct hci_mgmt_handler {
1745         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
1746                      u16 data_len);
1747         size_t data_len;
1748         unsigned long flags;
1749 };
1750
1751 struct hci_mgmt_chan {
1752         struct list_head list;
1753         unsigned short channel;
1754         size_t handler_count;
1755         const struct hci_mgmt_handler *handlers;
1756         void (*hdev_init) (struct sock *sk, struct hci_dev *hdev);
1757 };
1758
1759 int hci_mgmt_chan_register(struct hci_mgmt_chan *c);
1760 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c);
1761
1762 /* Management interface */
1763 #define DISCOV_TYPE_BREDR               (BIT(BDADDR_BREDR))
1764 #define DISCOV_TYPE_LE                  (BIT(BDADDR_LE_PUBLIC) | \
1765                                          BIT(BDADDR_LE_RANDOM))
1766 #define DISCOV_TYPE_INTERLEAVED         (BIT(BDADDR_BREDR) | \
1767                                          BIT(BDADDR_LE_PUBLIC) | \
1768                                          BIT(BDADDR_LE_RANDOM))
1769
1770 /* These LE scan and inquiry parameters were chosen according to LE General
1771  * Discovery Procedure specification.
1772  */
1773 #define DISCOV_LE_SCAN_WIN              0x12
1774 #define DISCOV_LE_SCAN_INT              0x12
1775 #define DISCOV_LE_TIMEOUT               10240   /* msec */
1776 #define DISCOV_INTERLEAVED_TIMEOUT      5120    /* msec */
1777 #define DISCOV_INTERLEAVED_INQUIRY_LEN  0x04
1778 #define DISCOV_BREDR_INQUIRY_LEN        0x08
1779 #define DISCOV_LE_RESTART_DELAY         msecs_to_jiffies(200)   /* msec */
1780 #define DISCOV_LE_FAST_ADV_INT_MIN      0x00A0  /* 100 msec */
1781 #define DISCOV_LE_FAST_ADV_INT_MAX      0x00F0  /* 150 msec */
1782
1783 void mgmt_fill_version_info(void *ver);
1784 int mgmt_new_settings(struct hci_dev *hdev);
1785 void mgmt_index_added(struct hci_dev *hdev);
1786 void mgmt_index_removed(struct hci_dev *hdev);
1787 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
1788 void mgmt_power_on(struct hci_dev *hdev, int err);
1789 void __mgmt_power_off(struct hci_dev *hdev);
1790 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
1791                        bool persistent);
1792 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
1793                            u8 *name, u8 name_len);
1794 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
1795                               u8 link_type, u8 addr_type, u8 reason,
1796                               bool mgmt_connected);
1797 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
1798                             u8 link_type, u8 addr_type, u8 status);
1799 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1800                          u8 addr_type, u8 status);
1801 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1802 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1803                                   u8 status);
1804 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1805                                       u8 status);
1806 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1807                               u8 link_type, u8 addr_type, u32 value,
1808                               u8 confirm_hint);
1809 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1810                                      u8 link_type, u8 addr_type, u8 status);
1811 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1812                                          u8 link_type, u8 addr_type, u8 status);
1813 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
1814                               u8 link_type, u8 addr_type);
1815 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1816                                      u8 link_type, u8 addr_type, u8 status);
1817 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
1818                                          u8 link_type, u8 addr_type, u8 status);
1819 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1820                              u8 link_type, u8 addr_type, u32 passkey,
1821                              u8 entered);
1822 void mgmt_auth_failed(struct hci_conn *conn, u8 status);
1823 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
1824 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
1825 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
1826                                     u8 status);
1827 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1828 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status);
1829 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status);
1830 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1831                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
1832                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len);
1833 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
1834                       u8 addr_type, s8 rssi, u8 *name, u8 name_len);
1835 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
1836 void mgmt_suspending(struct hci_dev *hdev, u8 state);
1837 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
1838                    u8 addr_type);
1839 bool mgmt_powering_down(struct hci_dev *hdev);
1840 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent);
1841 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent);
1842 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
1843                    bool persistent);
1844 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
1845                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
1846                          u16 max_interval, u16 latency, u16 timeout);
1847 void mgmt_smp_complete(struct hci_conn *conn, bool complete);
1848 bool mgmt_get_connectable(struct hci_dev *hdev);
1849 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status);
1850 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status);
1851 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev);
1852 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev,
1853                             u8 instance);
1854 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1855                               u8 instance);
1856 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
1857 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
1858 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
1859 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
1860
1861 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
1862                       u16 to_multiplier);
1863 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand,
1864                       __u8 ltk[16], __u8 key_size);
1865
1866 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr,
1867                                u8 *bdaddr_type);
1868
1869 #define SCO_AIRMODE_MASK       0x0003
1870 #define SCO_AIRMODE_CVSD       0x0000
1871 #define SCO_AIRMODE_TRANSP     0x0003
1872
1873 #endif /* __HCI_CORE_H */