include/net/bluetooth/hci_core.h

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