1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 Copyright 2023-2024 NXP 5 6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License version 2 as 10 published by the Free Software Foundation; 11 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 23 SOFTWARE IS DISCLAIMED. 24 */ 25 26 #ifndef __HCI_CORE_H 27 #define __HCI_CORE_H 28 29 #include <linux/idr.h> 30 #include <linux/leds.h> 31 #include <linux/rculist.h> 32 #include <linux/srcu.h> 33 34 #include <net/bluetooth/hci.h> 35 #include <net/bluetooth/hci_drv.h> 36 #include <net/bluetooth/hci_sync.h> 37 #include <net/bluetooth/hci_sock.h> 38 #include <net/bluetooth/coredump.h> 39 40 /* HCI priority */ 41 #define HCI_PRIO_MAX 7 42 43 /* HCI maximum id value */ 44 #define HCI_MAX_ID 10000 45 46 /* HCI Core structures */ 47 struct inquiry_data { 48 bdaddr_t bdaddr; 49 __u8 pscan_rep_mode; 50 __u8 pscan_period_mode; 51 __u8 pscan_mode; 52 __u8 dev_class[3]; 53 __le16 clock_offset; 54 __s8 rssi; 55 __u8 ssp_mode; 56 }; 57 58 struct inquiry_entry { 59 struct list_head all; /* inq_cache.all */ 60 struct list_head list; /* unknown or resolve */ 61 enum { 62 NAME_NOT_KNOWN, 63 NAME_NEEDED, 64 NAME_PENDING, 65 NAME_KNOWN, 66 } name_state; 67 __u32 timestamp; 68 struct inquiry_data data; 69 }; 70 71 struct discovery_state { 72 int type; 73 enum { 74 DISCOVERY_STOPPED, 75 DISCOVERY_STARTING, 76 DISCOVERY_FINDING, 77 DISCOVERY_RESOLVING, 78 DISCOVERY_STOPPING, 79 } state; 80 struct list_head all; /* All devices found during inquiry */ 81 struct list_head unknown; /* Name state not known */ 82 struct list_head resolve; /* Name needs to be resolved */ 83 __u32 timestamp; 84 bdaddr_t last_adv_addr; 85 u8 last_adv_addr_type; 86 s8 last_adv_rssi; 87 u32 last_adv_flags; 88 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH]; 89 u8 last_adv_data_len; 90 bool report_invalid_rssi; 91 bool result_filtering; 92 bool limited; 93 s8 rssi; 94 u16 uuid_count; 95 u8 (*uuids)[16]; 96 unsigned long name_resolve_timeout; 97 }; 98 99 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 100 101 enum suspend_tasks { 102 SUSPEND_PAUSE_DISCOVERY, 103 SUSPEND_UNPAUSE_DISCOVERY, 104 105 SUSPEND_PAUSE_ADVERTISING, 106 SUSPEND_UNPAUSE_ADVERTISING, 107 108 SUSPEND_SCAN_DISABLE, 109 SUSPEND_SCAN_ENABLE, 110 SUSPEND_DISCONNECTING, 111 112 SUSPEND_POWERING_DOWN, 113 114 SUSPEND_PREPARE_NOTIFIER, 115 116 SUSPEND_SET_ADV_FILTER, 117 __SUSPEND_NUM_TASKS 118 }; 119 120 enum suspended_state { 121 BT_RUNNING = 0, 122 BT_SUSPEND_DISCONNECT, 123 BT_SUSPEND_CONFIGURE_WAKE, 124 }; 125 126 struct hci_conn_hash { 127 struct list_head list; 128 unsigned int acl_num; 129 unsigned int sco_num; 130 unsigned int iso_num; 131 unsigned int le_num; 132 unsigned int le_num_peripheral; 133 }; 134 135 struct bdaddr_list { 136 struct list_head list; 137 bdaddr_t bdaddr; 138 u8 bdaddr_type; 139 }; 140 141 struct codec_list { 142 struct list_head list; 143 u8 id; 144 __u16 cid; 145 __u16 vid; 146 u8 transport; 147 u8 num_caps; 148 u32 len; 149 struct hci_codec_caps caps[]; 150 }; 151 152 struct bdaddr_list_with_irk { 153 struct list_head list; 154 bdaddr_t bdaddr; 155 u8 bdaddr_type; 156 u8 peer_irk[16]; 157 u8 local_irk[16]; 158 }; 159 160 /* Bitmask of connection flags */ 161 enum hci_conn_flags { 162 HCI_CONN_FLAG_REMOTE_WAKEUP = BIT(0), 163 HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1), 164 HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(2), 165 }; 166 typedef u8 hci_conn_flags_t; 167 168 struct bdaddr_list_with_flags { 169 struct list_head list; 170 bdaddr_t bdaddr; 171 u8 bdaddr_type; 172 hci_conn_flags_t flags; 173 }; 174 175 struct bt_uuid { 176 struct list_head list; 177 u8 uuid[16]; 178 u8 size; 179 u8 svc_hint; 180 }; 181 182 struct blocked_key { 183 struct list_head list; 184 struct rcu_head rcu; 185 u8 type; 186 u8 val[16]; 187 }; 188 189 struct smp_csrk { 190 bdaddr_t bdaddr; 191 u8 bdaddr_type; 192 u8 type; 193 u8 val[16]; 194 }; 195 196 struct smp_ltk { 197 struct list_head list; 198 struct rcu_head rcu; 199 bdaddr_t bdaddr; 200 u8 bdaddr_type; 201 u8 authenticated; 202 u8 type; 203 u8 enc_size; 204 __le16 ediv; 205 __le64 rand; 206 u8 val[16]; 207 }; 208 209 struct smp_irk { 210 struct list_head list; 211 struct rcu_head rcu; 212 bdaddr_t rpa; 213 bdaddr_t bdaddr; 214 u8 addr_type; 215 u8 val[16]; 216 }; 217 218 struct link_key { 219 struct list_head list; 220 struct rcu_head rcu; 221 bdaddr_t bdaddr; 222 u8 type; 223 u8 val[HCI_LINK_KEY_SIZE]; 224 u8 pin_len; 225 }; 226 227 struct oob_data { 228 struct list_head list; 229 bdaddr_t bdaddr; 230 u8 bdaddr_type; 231 u8 present; 232 u8 hash192[16]; 233 u8 rand192[16]; 234 u8 hash256[16]; 235 u8 rand256[16]; 236 }; 237 238 struct adv_info { 239 struct list_head list; 240 bool enabled; 241 bool pending; 242 bool periodic; 243 __u8 mesh; 244 __u8 instance; 245 __u8 handle; 246 __u8 sid; 247 __u32 flags; 248 __u16 timeout; 249 __u16 remaining_time; 250 __u16 duration; 251 __u16 adv_data_len; 252 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 253 bool adv_data_changed; 254 __u16 scan_rsp_len; 255 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 256 bool scan_rsp_changed; 257 __u16 per_adv_data_len; 258 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 259 __s8 tx_power; 260 __u32 min_interval; 261 __u32 max_interval; 262 bdaddr_t random_addr; 263 bool rpa_expired; 264 struct delayed_work rpa_expired_cb; 265 }; 266 267 struct tx_queue { 268 struct sk_buff_head queue; 269 unsigned int extra; 270 unsigned int tracked; 271 }; 272 273 #define HCI_MAX_ADV_INSTANCES 5 274 #define HCI_DEFAULT_ADV_DURATION 2 275 276 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 277 278 #define DATA_CMP(_d1, _l1, _d2, _l2) \ 279 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) 280 281 #define ADV_DATA_CMP(_adv, _data, _len) \ 282 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) 283 284 #define SCAN_RSP_CMP(_adv, _data, _len) \ 285 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) 286 287 struct monitored_device { 288 struct list_head list; 289 290 bdaddr_t bdaddr; 291 __u8 addr_type; 292 __u16 handle; 293 bool notified; 294 }; 295 296 struct adv_pattern { 297 struct list_head list; 298 __u8 ad_type; 299 __u8 offset; 300 __u8 length; 301 __u8 value[HCI_MAX_EXT_AD_LENGTH]; 302 }; 303 304 struct adv_rssi_thresholds { 305 __s8 low_threshold; 306 __s8 high_threshold; 307 __u16 low_threshold_timeout; 308 __u16 high_threshold_timeout; 309 __u8 sampling_period; 310 }; 311 312 struct adv_monitor { 313 struct list_head patterns; 314 struct adv_rssi_thresholds rssi; 315 __u16 handle; 316 317 enum { 318 ADV_MONITOR_STATE_NOT_REGISTERED, 319 ADV_MONITOR_STATE_REGISTERED, 320 ADV_MONITOR_STATE_OFFLOADED 321 } state; 322 }; 323 324 #define HCI_MIN_ADV_MONITOR_HANDLE 1 325 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 326 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 327 #define HCI_ADV_MONITOR_EXT_NONE 1 328 #define HCI_ADV_MONITOR_EXT_MSFT 2 329 330 #define HCI_MAX_SHORT_NAME_LENGTH 10 331 332 #define HCI_CONN_HANDLE_MAX 0x0eff 333 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) 334 335 /* Min encryption key size to match with SMP */ 336 #define HCI_MIN_ENC_KEY_SIZE 7 337 338 /* Default LE RPA expiry time, 15 minutes */ 339 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 340 341 /* Default min/max age of connection information (1s/3s) */ 342 #define DEFAULT_CONN_INFO_MIN_AGE 1000 343 #define DEFAULT_CONN_INFO_MAX_AGE 3000 344 /* Default authenticated payload timeout 30s */ 345 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 346 347 #define HCI_MAX_PAGES 3 348 349 struct hci_dev { 350 struct list_head list; 351 struct srcu_struct srcu; 352 struct mutex lock; 353 354 struct ida unset_handle_ida; 355 356 const char *name; 357 unsigned long flags; 358 __u16 id; 359 __u8 bus; 360 bdaddr_t bdaddr; 361 bdaddr_t setup_addr; 362 bdaddr_t public_addr; 363 bdaddr_t random_addr; 364 bdaddr_t static_addr; 365 __u8 adv_addr_type; 366 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 367 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 368 __u8 eir[HCI_MAX_EIR_LENGTH]; 369 __u16 appearance; 370 __u8 dev_class[3]; 371 __u8 major_class; 372 __u8 minor_class; 373 __u8 max_page; 374 __u8 features[HCI_MAX_PAGES][8]; 375 __u8 le_features[8]; 376 __u8 le_accept_list_size; 377 __u8 le_resolv_list_size; 378 __u8 le_num_of_adv_sets; 379 __u8 le_states[8]; 380 __u8 mesh_ad_types[16]; 381 __u8 mesh_send_ref; 382 __u8 commands[64]; 383 __u8 hci_ver; 384 __u16 hci_rev; 385 __u8 lmp_ver; 386 __u16 manufacturer; 387 __u16 lmp_subver; 388 __u16 voice_setting; 389 __u8 num_iac; 390 __u16 stored_max_keys; 391 __u16 stored_num_keys; 392 __u8 io_capability; 393 __s8 inq_tx_power; 394 __u8 err_data_reporting; 395 __u16 page_scan_interval; 396 __u16 page_scan_window; 397 __u8 page_scan_type; 398 __u8 le_adv_channel_map; 399 __u16 le_adv_min_interval; 400 __u16 le_adv_max_interval; 401 __u8 le_scan_type; 402 __u16 le_scan_interval; 403 __u16 le_scan_window; 404 __u16 le_scan_int_suspend; 405 __u16 le_scan_window_suspend; 406 __u16 le_scan_int_discovery; 407 __u16 le_scan_window_discovery; 408 __u16 le_scan_int_adv_monitor; 409 __u16 le_scan_window_adv_monitor; 410 __u16 le_scan_int_connect; 411 __u16 le_scan_window_connect; 412 __u16 le_conn_min_interval; 413 __u16 le_conn_max_interval; 414 __u16 le_conn_latency; 415 __u16 le_supv_timeout; 416 __u16 le_def_tx_len; 417 __u16 le_def_tx_time; 418 __u16 le_max_tx_len; 419 __u16 le_max_tx_time; 420 __u16 le_max_rx_len; 421 __u16 le_max_rx_time; 422 __u8 le_max_key_size; 423 __u8 le_min_key_size; 424 __u16 discov_interleaved_timeout; 425 __u16 conn_info_min_age; 426 __u16 conn_info_max_age; 427 __u16 auth_payload_timeout; 428 __u8 min_enc_key_size; 429 __u8 max_enc_key_size; 430 __u8 pairing_opts; 431 __u8 ssp_debug_mode; 432 __u8 hw_error_code; 433 __u32 clock; 434 __u16 advmon_allowlist_duration; 435 __u16 advmon_no_filter_duration; 436 __u8 enable_advmon_interleave_scan; 437 438 __u16 devid_source; 439 __u16 devid_vendor; 440 __u16 devid_product; 441 __u16 devid_version; 442 443 __u8 def_page_scan_type; 444 __u16 def_page_scan_int; 445 __u16 def_page_scan_window; 446 __u8 def_inq_scan_type; 447 __u16 def_inq_scan_int; 448 __u16 def_inq_scan_window; 449 __u16 def_br_lsto; 450 __u16 def_page_timeout; 451 __u16 def_multi_adv_rotation_duration; 452 __u16 def_le_autoconnect_timeout; 453 __s8 min_le_tx_power; 454 __s8 max_le_tx_power; 455 456 __u16 pkt_type; 457 __u16 esco_type; 458 __u16 link_policy; 459 __u16 link_mode; 460 461 __u32 idle_timeout; 462 __u16 sniff_min_interval; 463 __u16 sniff_max_interval; 464 465 unsigned int auto_accept_delay; 466 467 DECLARE_BITMAP(quirk_flags, __HCI_NUM_QUIRKS); 468 469 atomic_t cmd_cnt; 470 unsigned int acl_cnt; 471 unsigned int sco_cnt; 472 unsigned int le_cnt; 473 unsigned int iso_cnt; 474 475 unsigned int acl_mtu; 476 unsigned int sco_mtu; 477 unsigned int le_mtu; 478 unsigned int iso_mtu; 479 unsigned int acl_pkts; 480 unsigned int sco_pkts; 481 unsigned int le_pkts; 482 unsigned int iso_pkts; 483 484 unsigned long acl_last_tx; 485 unsigned long le_last_tx; 486 487 __u8 le_tx_def_phys; 488 __u8 le_rx_def_phys; 489 490 struct workqueue_struct *workqueue; 491 struct workqueue_struct *req_workqueue; 492 493 struct work_struct power_on; 494 struct delayed_work power_off; 495 struct work_struct error_reset; 496 struct work_struct cmd_sync_work; 497 struct list_head cmd_sync_work_list; 498 struct mutex cmd_sync_work_lock; 499 struct mutex unregister_lock; 500 struct work_struct cmd_sync_cancel_work; 501 struct work_struct reenable_adv_work; 502 503 __u16 discov_timeout; 504 struct delayed_work discov_off; 505 506 struct delayed_work service_cache; 507 508 struct delayed_work cmd_timer; 509 struct delayed_work ncmd_timer; 510 511 struct work_struct rx_work; 512 struct work_struct cmd_work; 513 struct work_struct tx_work; 514 515 struct delayed_work le_scan_disable; 516 517 struct sk_buff_head rx_q; 518 struct sk_buff_head raw_q; 519 struct sk_buff_head cmd_q; 520 521 struct sk_buff *sent_cmd; 522 struct sk_buff *recv_event; 523 524 struct mutex req_lock; 525 wait_queue_head_t req_wait_q; 526 __u32 req_status; 527 __u32 req_result; 528 struct sk_buff *req_skb; 529 struct sk_buff *req_rsp; 530 531 void *smp_data; 532 void *smp_bredr_data; 533 534 struct discovery_state discovery; 535 536 bool discovery_paused; 537 int advertising_old_state; 538 bool advertising_paused; 539 540 struct notifier_block suspend_notifier; 541 enum suspended_state suspend_state_next; 542 enum suspended_state suspend_state; 543 bool scanning_paused; 544 bool suspended; 545 u8 wake_reason; 546 bdaddr_t wake_addr; 547 u8 wake_addr_type; 548 549 struct hci_conn_hash conn_hash; 550 551 struct list_head mesh_pending; 552 struct mutex mgmt_pending_lock; 553 struct list_head mgmt_pending; 554 struct list_head reject_list; 555 struct list_head accept_list; 556 struct list_head uuids; 557 struct list_head link_keys; 558 struct list_head long_term_keys; 559 struct list_head identity_resolving_keys; 560 struct list_head remote_oob_data; 561 struct list_head le_accept_list; 562 struct list_head le_resolv_list; 563 struct list_head le_conn_params; 564 struct list_head pend_le_conns; 565 struct list_head pend_le_reports; 566 struct list_head blocked_keys; 567 struct list_head local_codecs; 568 569 struct hci_dev_stats stat; 570 571 atomic_t promisc; 572 573 const char *hw_info; 574 const char *fw_info; 575 struct dentry *debugfs; 576 577 struct hci_devcoredump dump; 578 579 struct device dev; 580 581 struct rfkill *rfkill; 582 583 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 584 hci_conn_flags_t conn_flags; 585 586 __s8 adv_tx_power; 587 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 588 __u8 adv_data_len; 589 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 590 __u8 scan_rsp_data_len; 591 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 592 __u8 per_adv_data_len; 593 594 struct list_head adv_instances; 595 unsigned int adv_instance_cnt; 596 __u8 cur_adv_instance; 597 __u16 adv_instance_timeout; 598 struct delayed_work adv_instance_expire; 599 600 struct idr adv_monitors_idr; 601 unsigned int adv_monitors_cnt; 602 603 __u8 irk[16]; 604 __u32 rpa_timeout; 605 struct delayed_work rpa_expired; 606 bdaddr_t rpa; 607 608 struct delayed_work mesh_send_done; 609 610 enum { 611 INTERLEAVE_SCAN_NONE, 612 INTERLEAVE_SCAN_NO_FILTER, 613 INTERLEAVE_SCAN_ALLOWLIST 614 } interleave_scan_state; 615 616 struct delayed_work interleave_scan; 617 618 struct list_head monitored_devices; 619 bool advmon_pend_notify; 620 621 struct hci_drv *hci_drv; 622 623 #if IS_ENABLED(CONFIG_BT_LEDS) 624 struct led_trigger *power_led; 625 #endif 626 627 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 628 __u16 msft_opcode; 629 void *msft_data; 630 bool msft_curve_validity; 631 #endif 632 633 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 634 bool aosp_capable; 635 bool aosp_quality_report; 636 #endif 637 638 int (*open)(struct hci_dev *hdev); 639 int (*close)(struct hci_dev *hdev); 640 int (*flush)(struct hci_dev *hdev); 641 int (*setup)(struct hci_dev *hdev); 642 int (*shutdown)(struct hci_dev *hdev); 643 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 644 void (*notify)(struct hci_dev *hdev, unsigned int evt); 645 void (*hw_error)(struct hci_dev *hdev, u8 code); 646 int (*post_init)(struct hci_dev *hdev); 647 int (*set_diag)(struct hci_dev *hdev, bool enable); 648 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 649 void (*reset)(struct hci_dev *hdev); 650 bool (*wakeup)(struct hci_dev *hdev); 651 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 652 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 653 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 654 struct bt_codec *codec, __u8 *vnd_len, 655 __u8 **vnd_data); 656 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); 657 }; 658 659 #define hci_set_quirk(hdev, nr) set_bit((nr), (hdev)->quirk_flags) 660 #define hci_clear_quirk(hdev, nr) clear_bit((nr), (hdev)->quirk_flags) 661 #define hci_test_quirk(hdev, nr) test_bit((nr), (hdev)->quirk_flags) 662 663 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 664 665 enum conn_reasons { 666 CONN_REASON_PAIR_DEVICE, 667 CONN_REASON_L2CAP_CHAN, 668 CONN_REASON_SCO_CONNECT, 669 CONN_REASON_ISO_CONNECT, 670 }; 671 672 struct hci_conn { 673 struct list_head list; 674 675 atomic_t refcnt; 676 677 bdaddr_t dst; 678 __u8 dst_type; 679 bdaddr_t src; 680 __u8 src_type; 681 bdaddr_t init_addr; 682 __u8 init_addr_type; 683 bdaddr_t resp_addr; 684 __u8 resp_addr_type; 685 __u8 adv_instance; 686 __u16 handle; 687 __u16 sync_handle; 688 __u8 sid; 689 __u16 state; 690 __u16 mtu; 691 __u8 mode; 692 __u8 type; 693 __u8 role; 694 bool out; 695 __u8 attempt; 696 __u8 dev_class[3]; 697 __u8 features[HCI_MAX_PAGES][8]; 698 __u16 pkt_type; 699 __u16 link_policy; 700 __u8 key_type; 701 __u8 auth_type; 702 __u8 sec_level; 703 __u8 pending_sec_level; 704 __u8 pin_length; 705 __u8 enc_key_size; 706 __u8 io_capability; 707 __u32 passkey_notify; 708 __u8 passkey_entered; 709 __u16 disc_timeout; 710 __u16 conn_timeout; 711 __u16 setting; 712 __u16 auth_payload_timeout; 713 __u16 le_conn_min_interval; 714 __u16 le_conn_max_interval; 715 __u16 le_conn_interval; 716 __u16 le_conn_latency; 717 __u16 le_supv_timeout; 718 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; 719 __u8 le_adv_data_len; 720 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; 721 __u16 le_per_adv_data_len; 722 __u16 le_per_adv_data_offset; 723 __u8 le_adv_phy; 724 __u8 le_adv_sec_phy; 725 __u8 le_tx_phy; 726 __u8 le_rx_phy; 727 __s8 rssi; 728 __s8 tx_power; 729 __s8 max_tx_power; 730 struct bt_iso_qos iso_qos; 731 __u8 num_bis; 732 __u8 bis[HCI_MAX_ISO_BIS]; 733 734 unsigned long flags; 735 736 enum conn_reasons conn_reason; 737 __u8 abort_reason; 738 739 __u32 clock; 740 __u16 clock_accuracy; 741 742 unsigned long conn_info_timestamp; 743 744 __u8 remote_cap; 745 __u8 remote_auth; 746 __u8 remote_id; 747 748 unsigned int sent; 749 750 struct sk_buff_head data_q; 751 struct list_head chan_list; 752 753 struct tx_queue tx_q; 754 755 struct delayed_work disc_work; 756 struct delayed_work auto_accept_work; 757 struct delayed_work idle_work; 758 struct delayed_work le_conn_timeout; 759 760 struct device dev; 761 struct dentry *debugfs; 762 763 struct hci_dev *hdev; 764 void *l2cap_data; 765 void *sco_data; 766 void *iso_data; 767 768 struct list_head link_list; 769 struct hci_conn *parent; 770 struct hci_link *link; 771 772 struct bt_codec codec; 773 774 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 775 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 776 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 777 778 void (*cleanup)(struct hci_conn *conn); 779 }; 780 781 struct hci_link { 782 struct list_head list; 783 struct hci_conn *conn; 784 }; 785 786 struct hci_chan { 787 struct list_head list; 788 __u16 handle; 789 struct hci_conn *conn; 790 struct sk_buff_head data_q; 791 unsigned int sent; 792 __u8 state; 793 }; 794 795 struct hci_conn_params { 796 struct list_head list; 797 struct list_head action; 798 799 bdaddr_t addr; 800 u8 addr_type; 801 802 u16 conn_min_interval; 803 u16 conn_max_interval; 804 u16 conn_latency; 805 u16 supervision_timeout; 806 807 enum { 808 HCI_AUTO_CONN_DISABLED, 809 HCI_AUTO_CONN_REPORT, 810 HCI_AUTO_CONN_DIRECT, 811 HCI_AUTO_CONN_ALWAYS, 812 HCI_AUTO_CONN_LINK_LOSS, 813 HCI_AUTO_CONN_EXPLICIT, 814 } auto_connect; 815 816 struct hci_conn *conn; 817 bool explicit_connect; 818 /* Accessed without hdev->lock: */ 819 hci_conn_flags_t flags; 820 u8 privacy_mode; 821 }; 822 823 extern struct list_head hci_dev_list; 824 extern struct list_head hci_cb_list; 825 extern rwlock_t hci_dev_list_lock; 826 extern struct mutex hci_cb_list_lock; 827 828 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 829 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 830 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 831 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 832 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 833 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 834 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 835 836 #define hci_dev_clear_volatile_flags(hdev) \ 837 do { \ 838 hci_dev_clear_flag((hdev), HCI_LE_SCAN); \ 839 hci_dev_clear_flag((hdev), HCI_LE_ADV); \ 840 hci_dev_clear_flag((hdev), HCI_LL_RPA_RESOLUTION); \ 841 hci_dev_clear_flag((hdev), HCI_PERIODIC_INQ); \ 842 hci_dev_clear_flag((hdev), HCI_QUALITY_REPORT); \ 843 } while (0) 844 845 #define hci_dev_le_state_simultaneous(hdev) \ 846 (!hci_test_quirk((hdev), HCI_QUIRK_BROKEN_LE_STATES) && \ 847 ((hdev)->le_states[4] & 0x08) && /* Central */ \ 848 ((hdev)->le_states[4] & 0x40) && /* Peripheral */ \ 849 ((hdev)->le_states[3] & 0x10)) /* Simultaneous */ 850 851 /* ----- HCI interface to upper protocols ----- */ 852 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 853 int l2cap_disconn_ind(struct hci_conn *hcon); 854 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 855 856 #if IS_ENABLED(CONFIG_BT_BREDR) 857 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 858 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 859 #else 860 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 861 __u8 *flags) 862 { 863 return 0; 864 } 865 866 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 867 { 868 } 869 #endif 870 871 #if IS_ENABLED(CONFIG_BT_LE) 872 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 873 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 874 #else 875 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 876 __u8 *flags) 877 { 878 return 0; 879 } 880 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, 881 u16 flags) 882 { 883 } 884 #endif 885 886 /* ----- Inquiry cache ----- */ 887 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 888 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 889 890 static inline void discovery_init(struct hci_dev *hdev) 891 { 892 hdev->discovery.state = DISCOVERY_STOPPED; 893 INIT_LIST_HEAD(&hdev->discovery.all); 894 INIT_LIST_HEAD(&hdev->discovery.unknown); 895 INIT_LIST_HEAD(&hdev->discovery.resolve); 896 hdev->discovery.report_invalid_rssi = true; 897 hdev->discovery.rssi = HCI_RSSI_INVALID; 898 } 899 900 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 901 { 902 hdev->discovery.result_filtering = false; 903 hdev->discovery.report_invalid_rssi = true; 904 hdev->discovery.rssi = HCI_RSSI_INVALID; 905 hdev->discovery.uuid_count = 0; 906 kfree(hdev->discovery.uuids); 907 hdev->discovery.uuids = NULL; 908 } 909 910 bool hci_discovery_active(struct hci_dev *hdev); 911 912 void hci_discovery_set_state(struct hci_dev *hdev, int state); 913 914 static inline int inquiry_cache_empty(struct hci_dev *hdev) 915 { 916 return list_empty(&hdev->discovery.all); 917 } 918 919 static inline long inquiry_cache_age(struct hci_dev *hdev) 920 { 921 struct discovery_state *c = &hdev->discovery; 922 return jiffies - c->timestamp; 923 } 924 925 static inline long inquiry_entry_age(struct inquiry_entry *e) 926 { 927 return jiffies - e->timestamp; 928 } 929 930 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 931 bdaddr_t *bdaddr); 932 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 933 bdaddr_t *bdaddr); 934 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 935 bdaddr_t *bdaddr, 936 int state); 937 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 938 struct inquiry_entry *ie); 939 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 940 bool name_known); 941 void hci_inquiry_cache_flush(struct hci_dev *hdev); 942 943 /* ----- HCI Connections ----- */ 944 enum { 945 HCI_CONN_AUTH_PEND, 946 HCI_CONN_ENCRYPT_PEND, 947 HCI_CONN_RSWITCH_PEND, 948 HCI_CONN_MODE_CHANGE_PEND, 949 HCI_CONN_SCO_SETUP_PEND, 950 HCI_CONN_MGMT_CONNECTED, 951 HCI_CONN_SSP_ENABLED, 952 HCI_CONN_SC_ENABLED, 953 HCI_CONN_AES_CCM, 954 HCI_CONN_POWER_SAVE, 955 HCI_CONN_FLUSH_KEY, 956 HCI_CONN_ENCRYPT, 957 HCI_CONN_AUTH, 958 HCI_CONN_SECURE, 959 HCI_CONN_FIPS, 960 HCI_CONN_STK_ENCRYPT, 961 HCI_CONN_AUTH_INITIATOR, 962 HCI_CONN_DROP, 963 HCI_CONN_CANCEL, 964 HCI_CONN_PARAM_REMOVAL_PEND, 965 HCI_CONN_NEW_LINK_KEY, 966 HCI_CONN_SCANNING, 967 HCI_CONN_AUTH_FAILURE, 968 HCI_CONN_PER_ADV, 969 HCI_CONN_BIG_CREATED, 970 HCI_CONN_CREATE_CIS, 971 HCI_CONN_CREATE_BIG_SYNC, 972 HCI_CONN_BIG_SYNC, 973 HCI_CONN_BIG_SYNC_FAILED, 974 HCI_CONN_CREATE_PA_SYNC, 975 HCI_CONN_PA_SYNC, 976 HCI_CONN_PA_SYNC_FAILED, 977 }; 978 979 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 980 { 981 struct hci_dev *hdev = conn->hdev; 982 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 983 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 984 } 985 986 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 987 { 988 struct hci_dev *hdev = conn->hdev; 989 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 990 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 991 } 992 993 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 994 { 995 struct hci_conn_hash *h = &hdev->conn_hash; 996 list_add_tail_rcu(&c->list, &h->list); 997 switch (c->type) { 998 case ACL_LINK: 999 h->acl_num++; 1000 break; 1001 case LE_LINK: 1002 h->le_num++; 1003 if (c->role == HCI_ROLE_SLAVE) 1004 h->le_num_peripheral++; 1005 break; 1006 case SCO_LINK: 1007 case ESCO_LINK: 1008 h->sco_num++; 1009 break; 1010 case CIS_LINK: 1011 case BIS_LINK: 1012 h->iso_num++; 1013 break; 1014 } 1015 } 1016 1017 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 1018 { 1019 struct hci_conn_hash *h = &hdev->conn_hash; 1020 1021 list_del_rcu(&c->list); 1022 synchronize_rcu(); 1023 1024 switch (c->type) { 1025 case ACL_LINK: 1026 h->acl_num--; 1027 break; 1028 case LE_LINK: 1029 h->le_num--; 1030 if (c->role == HCI_ROLE_SLAVE) 1031 h->le_num_peripheral--; 1032 break; 1033 case SCO_LINK: 1034 case ESCO_LINK: 1035 h->sco_num--; 1036 break; 1037 case CIS_LINK: 1038 case BIS_LINK: 1039 h->iso_num--; 1040 break; 1041 } 1042 } 1043 1044 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 1045 { 1046 struct hci_conn_hash *h = &hdev->conn_hash; 1047 switch (type) { 1048 case ACL_LINK: 1049 return h->acl_num; 1050 case LE_LINK: 1051 return h->le_num; 1052 case SCO_LINK: 1053 case ESCO_LINK: 1054 return h->sco_num; 1055 case CIS_LINK: 1056 case BIS_LINK: 1057 return h->iso_num; 1058 default: 1059 return 0; 1060 } 1061 } 1062 1063 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 1064 { 1065 struct hci_conn_hash *c = &hdev->conn_hash; 1066 1067 return c->acl_num + c->sco_num + c->le_num + c->iso_num; 1068 } 1069 1070 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) 1071 { 1072 struct hci_conn_hash *h = &hdev->conn_hash; 1073 struct hci_conn *c; 1074 1075 rcu_read_lock(); 1076 1077 list_for_each_entry_rcu(c, &h->list, list) { 1078 if (c == conn) { 1079 rcu_read_unlock(); 1080 return true; 1081 } 1082 } 1083 rcu_read_unlock(); 1084 1085 return false; 1086 } 1087 1088 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 1089 { 1090 struct hci_conn_hash *h = &hdev->conn_hash; 1091 struct hci_conn *c; 1092 __u8 type = INVALID_LINK; 1093 1094 rcu_read_lock(); 1095 1096 list_for_each_entry_rcu(c, &h->list, list) { 1097 if (c->handle == handle) { 1098 type = c->type; 1099 break; 1100 } 1101 } 1102 1103 rcu_read_unlock(); 1104 1105 return type; 1106 } 1107 1108 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, 1109 bdaddr_t *ba, __u8 bis) 1110 { 1111 struct hci_conn_hash *h = &hdev->conn_hash; 1112 struct hci_conn *c; 1113 1114 rcu_read_lock(); 1115 1116 list_for_each_entry_rcu(c, &h->list, list) { 1117 if (bacmp(&c->dst, ba) || c->type != BIS_LINK) 1118 continue; 1119 1120 if (c->iso_qos.bcast.bis == bis) { 1121 rcu_read_unlock(); 1122 return c; 1123 } 1124 } 1125 rcu_read_unlock(); 1126 1127 return NULL; 1128 } 1129 1130 static inline struct hci_conn * 1131 hci_conn_hash_lookup_create_pa_sync(struct hci_dev *hdev) 1132 { 1133 struct hci_conn_hash *h = &hdev->conn_hash; 1134 struct hci_conn *c; 1135 1136 rcu_read_lock(); 1137 1138 list_for_each_entry_rcu(c, &h->list, list) { 1139 if (c->type != BIS_LINK) 1140 continue; 1141 1142 if (!test_bit(HCI_CONN_CREATE_PA_SYNC, &c->flags)) 1143 continue; 1144 1145 rcu_read_unlock(); 1146 return c; 1147 } 1148 1149 rcu_read_unlock(); 1150 1151 return NULL; 1152 } 1153 1154 static inline struct hci_conn * 1155 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, 1156 bdaddr_t *ba, 1157 __u8 big, __u8 bis) 1158 { 1159 struct hci_conn_hash *h = &hdev->conn_hash; 1160 struct hci_conn *c; 1161 1162 rcu_read_lock(); 1163 1164 list_for_each_entry_rcu(c, &h->list, list) { 1165 if (bacmp(&c->dst, ba) || c->type != BIS_LINK || 1166 !test_bit(HCI_CONN_PER_ADV, &c->flags)) 1167 continue; 1168 1169 if (c->iso_qos.bcast.big == big && 1170 c->iso_qos.bcast.bis == bis) { 1171 rcu_read_unlock(); 1172 return c; 1173 } 1174 } 1175 rcu_read_unlock(); 1176 1177 return NULL; 1178 } 1179 1180 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1181 __u16 handle) 1182 { 1183 struct hci_conn_hash *h = &hdev->conn_hash; 1184 struct hci_conn *c; 1185 1186 rcu_read_lock(); 1187 1188 list_for_each_entry_rcu(c, &h->list, list) { 1189 if (c->handle == handle) { 1190 rcu_read_unlock(); 1191 return c; 1192 } 1193 } 1194 rcu_read_unlock(); 1195 1196 return NULL; 1197 } 1198 1199 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1200 __u8 type, bdaddr_t *ba) 1201 { 1202 struct hci_conn_hash *h = &hdev->conn_hash; 1203 struct hci_conn *c; 1204 1205 rcu_read_lock(); 1206 1207 list_for_each_entry_rcu(c, &h->list, list) { 1208 if (c->type == type && !bacmp(&c->dst, ba)) { 1209 rcu_read_unlock(); 1210 return c; 1211 } 1212 } 1213 1214 rcu_read_unlock(); 1215 1216 return NULL; 1217 } 1218 1219 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1220 bdaddr_t *ba, 1221 __u8 ba_type) 1222 { 1223 struct hci_conn_hash *h = &hdev->conn_hash; 1224 struct hci_conn *c; 1225 1226 rcu_read_lock(); 1227 1228 list_for_each_entry_rcu(c, &h->list, list) { 1229 if (c->type != LE_LINK) 1230 continue; 1231 1232 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1233 rcu_read_unlock(); 1234 return c; 1235 } 1236 } 1237 1238 rcu_read_unlock(); 1239 1240 return NULL; 1241 } 1242 1243 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, 1244 bdaddr_t *ba, 1245 __u8 ba_type, 1246 __u8 cig, 1247 __u8 id) 1248 { 1249 struct hci_conn_hash *h = &hdev->conn_hash; 1250 struct hci_conn *c; 1251 1252 rcu_read_lock(); 1253 1254 list_for_each_entry_rcu(c, &h->list, list) { 1255 if (c->type != CIS_LINK) 1256 continue; 1257 1258 /* Match CIG ID if set */ 1259 if (cig != c->iso_qos.ucast.cig) 1260 continue; 1261 1262 /* Match CIS ID if set */ 1263 if (id != c->iso_qos.ucast.cis) 1264 continue; 1265 1266 /* Match destination address if set */ 1267 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { 1268 rcu_read_unlock(); 1269 return c; 1270 } 1271 } 1272 1273 rcu_read_unlock(); 1274 1275 return NULL; 1276 } 1277 1278 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, 1279 __u8 handle) 1280 { 1281 struct hci_conn_hash *h = &hdev->conn_hash; 1282 struct hci_conn *c; 1283 1284 rcu_read_lock(); 1285 1286 list_for_each_entry_rcu(c, &h->list, list) { 1287 if (c->type != CIS_LINK) 1288 continue; 1289 1290 if (handle == c->iso_qos.ucast.cig) { 1291 rcu_read_unlock(); 1292 return c; 1293 } 1294 } 1295 1296 rcu_read_unlock(); 1297 1298 return NULL; 1299 } 1300 1301 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, 1302 __u8 handle) 1303 { 1304 struct hci_conn_hash *h = &hdev->conn_hash; 1305 struct hci_conn *c; 1306 1307 rcu_read_lock(); 1308 1309 list_for_each_entry_rcu(c, &h->list, list) { 1310 if (c->type != BIS_LINK) 1311 continue; 1312 1313 if (handle == c->iso_qos.bcast.big) { 1314 rcu_read_unlock(); 1315 return c; 1316 } 1317 } 1318 1319 rcu_read_unlock(); 1320 1321 return NULL; 1322 } 1323 1324 static inline struct hci_conn * 1325 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev, 1326 __u8 handle, __u8 num_bis) 1327 { 1328 struct hci_conn_hash *h = &hdev->conn_hash; 1329 struct hci_conn *c; 1330 1331 rcu_read_lock(); 1332 1333 list_for_each_entry_rcu(c, &h->list, list) { 1334 if (c->type != BIS_LINK) 1335 continue; 1336 1337 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) { 1338 rcu_read_unlock(); 1339 return c; 1340 } 1341 } 1342 1343 rcu_read_unlock(); 1344 1345 return NULL; 1346 } 1347 1348 static inline struct hci_conn * 1349 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state) 1350 { 1351 struct hci_conn_hash *h = &hdev->conn_hash; 1352 struct hci_conn *c; 1353 1354 rcu_read_lock(); 1355 1356 list_for_each_entry_rcu(c, &h->list, list) { 1357 if (c->type != BIS_LINK || c->state != state) 1358 continue; 1359 1360 if (handle == c->iso_qos.bcast.big) { 1361 rcu_read_unlock(); 1362 return c; 1363 } 1364 } 1365 1366 rcu_read_unlock(); 1367 1368 return NULL; 1369 } 1370 1371 static inline struct hci_conn * 1372 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) 1373 { 1374 struct hci_conn_hash *h = &hdev->conn_hash; 1375 struct hci_conn *c; 1376 1377 rcu_read_lock(); 1378 1379 list_for_each_entry_rcu(c, &h->list, list) { 1380 if (c->type != BIS_LINK || 1381 !test_bit(HCI_CONN_PA_SYNC, &c->flags)) 1382 continue; 1383 1384 if (c->iso_qos.bcast.big == big) { 1385 rcu_read_unlock(); 1386 return c; 1387 } 1388 } 1389 rcu_read_unlock(); 1390 1391 return NULL; 1392 } 1393 1394 static inline struct hci_conn * 1395 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) 1396 { 1397 struct hci_conn_hash *h = &hdev->conn_hash; 1398 struct hci_conn *c; 1399 1400 rcu_read_lock(); 1401 1402 list_for_each_entry_rcu(c, &h->list, list) { 1403 if (c->type != BIS_LINK) 1404 continue; 1405 1406 /* Ignore the listen hcon, we are looking 1407 * for the child hcon that was created as 1408 * a result of the PA sync established event. 1409 */ 1410 if (c->state == BT_LISTEN) 1411 continue; 1412 1413 if (c->sync_handle == sync_handle) { 1414 rcu_read_unlock(); 1415 return c; 1416 } 1417 } 1418 rcu_read_unlock(); 1419 1420 return NULL; 1421 } 1422 1423 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1424 __u8 type, __u16 state) 1425 { 1426 struct hci_conn_hash *h = &hdev->conn_hash; 1427 struct hci_conn *c; 1428 1429 rcu_read_lock(); 1430 1431 list_for_each_entry_rcu(c, &h->list, list) { 1432 if (c->type == type && c->state == state) { 1433 rcu_read_unlock(); 1434 return c; 1435 } 1436 } 1437 1438 rcu_read_unlock(); 1439 1440 return NULL; 1441 } 1442 1443 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); 1444 static inline void hci_conn_hash_list_state(struct hci_dev *hdev, 1445 hci_conn_func_t func, __u8 type, 1446 __u16 state, void *data) 1447 { 1448 struct hci_conn_hash *h = &hdev->conn_hash; 1449 struct hci_conn *c; 1450 1451 if (!func) 1452 return; 1453 1454 rcu_read_lock(); 1455 1456 list_for_each_entry_rcu(c, &h->list, list) { 1457 if (c->type == type && c->state == state) 1458 func(c, data); 1459 } 1460 1461 rcu_read_unlock(); 1462 } 1463 1464 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, 1465 hci_conn_func_t func, __u8 type, 1466 __u8 flag, void *data) 1467 { 1468 struct hci_conn_hash *h = &hdev->conn_hash; 1469 struct hci_conn *c; 1470 1471 if (!func) 1472 return; 1473 1474 rcu_read_lock(); 1475 1476 list_for_each_entry_rcu(c, &h->list, list) { 1477 if (c->type == type && test_bit(flag, &c->flags)) 1478 func(c, data); 1479 } 1480 1481 rcu_read_unlock(); 1482 } 1483 1484 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1485 { 1486 struct hci_conn_hash *h = &hdev->conn_hash; 1487 struct hci_conn *c; 1488 1489 rcu_read_lock(); 1490 1491 list_for_each_entry_rcu(c, &h->list, list) { 1492 if (c->type == LE_LINK && c->state == BT_CONNECT && 1493 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1494 rcu_read_unlock(); 1495 return c; 1496 } 1497 } 1498 1499 rcu_read_unlock(); 1500 1501 return NULL; 1502 } 1503 1504 /* Returns true if an le connection is in the scanning state */ 1505 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) 1506 { 1507 struct hci_conn_hash *h = &hdev->conn_hash; 1508 struct hci_conn *c; 1509 1510 rcu_read_lock(); 1511 1512 list_for_each_entry_rcu(c, &h->list, list) { 1513 if (c->type == LE_LINK && c->state == BT_CONNECT && 1514 test_bit(HCI_CONN_SCANNING, &c->flags)) { 1515 rcu_read_unlock(); 1516 return true; 1517 } 1518 } 1519 1520 rcu_read_unlock(); 1521 1522 return false; 1523 } 1524 1525 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1526 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1527 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1528 bool hci_iso_setup_path(struct hci_conn *conn); 1529 int hci_le_create_cis_pending(struct hci_dev *hdev); 1530 int hci_conn_check_create_cis(struct hci_conn *conn); 1531 1532 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1533 u8 role, u16 handle); 1534 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, 1535 bdaddr_t *dst, u8 role); 1536 void hci_conn_del(struct hci_conn *conn); 1537 void hci_conn_hash_flush(struct hci_dev *hdev); 1538 1539 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1540 void hci_chan_del(struct hci_chan *chan); 1541 void hci_chan_list_flush(struct hci_conn *conn); 1542 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1543 1544 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1545 u8 dst_type, u8 sec_level, 1546 u16 conn_timeout, 1547 enum conn_reasons conn_reason); 1548 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1549 u8 dst_type, bool dst_resolved, u8 sec_level, 1550 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); 1551 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); 1552 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1553 u8 sec_level, u8 auth_type, 1554 enum conn_reasons conn_reason, u16 timeout); 1555 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1556 __u16 setting, struct bt_codec *codec, 1557 u16 timeout); 1558 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, 1559 __u8 dst_type, struct bt_iso_qos *qos); 1560 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid, 1561 struct bt_iso_qos *qos, 1562 __u8 base_len, __u8 *base); 1563 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, 1564 __u8 dst_type, struct bt_iso_qos *qos); 1565 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, 1566 __u8 dst_type, __u8 sid, 1567 struct bt_iso_qos *qos, 1568 __u8 data_len, __u8 *data); 1569 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, 1570 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); 1571 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, 1572 struct bt_iso_qos *qos, __u16 sync_handle, 1573 __u8 num_bis, __u8 bis[]); 1574 int hci_conn_check_link_mode(struct hci_conn *conn); 1575 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1576 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1577 bool initiator); 1578 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1579 1580 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1581 1582 void hci_conn_failed(struct hci_conn *conn, u8 status); 1583 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); 1584 1585 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb); 1586 void hci_conn_tx_dequeue(struct hci_conn *conn); 1587 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset, 1588 const struct sockcm_cookie *sockc); 1589 1590 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk) 1591 { 1592 *sockc = (struct sockcm_cookie) { 1593 .tsflags = READ_ONCE(sk->sk_tsflags), 1594 }; 1595 } 1596 1597 /* 1598 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1599 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1600 * working or anything else. They just guarantee that the object is available 1601 * and can be dereferenced. So you can use its locks, local variables and any 1602 * other constant data. 1603 * Before accessing runtime data, you _must_ lock the object and then check that 1604 * it is still running. As soon as you release the locks, the connection might 1605 * get dropped, though. 1606 * 1607 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1608 * how long the underlying connection is held. So every channel that runs on the 1609 * hci_conn object calls this to prevent the connection from disappearing. As 1610 * long as you hold a device, you must also guarantee that you have a valid 1611 * reference to the device via hci_conn_get() (or the initial reference from 1612 * hci_conn_add()). 1613 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1614 * break because nobody cares for that. But this means, we cannot use 1615 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1616 */ 1617 1618 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1619 { 1620 get_device(&conn->dev); 1621 return conn; 1622 } 1623 1624 static inline void hci_conn_put(struct hci_conn *conn) 1625 { 1626 put_device(&conn->dev); 1627 } 1628 1629 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) 1630 { 1631 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1632 1633 atomic_inc(&conn->refcnt); 1634 cancel_delayed_work(&conn->disc_work); 1635 1636 return conn; 1637 } 1638 1639 static inline void hci_conn_drop(struct hci_conn *conn) 1640 { 1641 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1642 1643 if (atomic_dec_and_test(&conn->refcnt)) { 1644 unsigned long timeo; 1645 1646 switch (conn->type) { 1647 case ACL_LINK: 1648 case LE_LINK: 1649 cancel_delayed_work(&conn->idle_work); 1650 if (conn->state == BT_CONNECTED) { 1651 timeo = conn->disc_timeout; 1652 if (!conn->out) 1653 timeo *= 2; 1654 } else { 1655 timeo = 0; 1656 } 1657 break; 1658 1659 default: 1660 timeo = 0; 1661 break; 1662 } 1663 1664 cancel_delayed_work(&conn->disc_work); 1665 queue_delayed_work(conn->hdev->workqueue, 1666 &conn->disc_work, timeo); 1667 } 1668 } 1669 1670 /* ----- HCI Devices ----- */ 1671 static inline void hci_dev_put(struct hci_dev *d) 1672 { 1673 BT_DBG("%s orig refcnt %d", d->name, 1674 kref_read(&d->dev.kobj.kref)); 1675 1676 put_device(&d->dev); 1677 } 1678 1679 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1680 { 1681 BT_DBG("%s orig refcnt %d", d->name, 1682 kref_read(&d->dev.kobj.kref)); 1683 1684 get_device(&d->dev); 1685 return d; 1686 } 1687 1688 #define hci_dev_lock(d) mutex_lock(&d->lock) 1689 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1690 1691 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1692 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1693 1694 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1695 { 1696 return dev_get_drvdata(&hdev->dev); 1697 } 1698 1699 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1700 { 1701 dev_set_drvdata(&hdev->dev, data); 1702 } 1703 1704 static inline void *hci_get_priv(struct hci_dev *hdev) 1705 { 1706 return (char *)hdev + sizeof(*hdev); 1707 } 1708 1709 struct hci_dev *hci_dev_get(int index); 1710 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1711 1712 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1713 1714 static inline struct hci_dev *hci_alloc_dev(void) 1715 { 1716 return hci_alloc_dev_priv(0); 1717 } 1718 1719 void hci_free_dev(struct hci_dev *hdev); 1720 int hci_register_dev(struct hci_dev *hdev); 1721 void hci_unregister_dev(struct hci_dev *hdev); 1722 void hci_release_dev(struct hci_dev *hdev); 1723 int hci_register_suspend_notifier(struct hci_dev *hdev); 1724 int hci_unregister_suspend_notifier(struct hci_dev *hdev); 1725 int hci_suspend_dev(struct hci_dev *hdev); 1726 int hci_resume_dev(struct hci_dev *hdev); 1727 int hci_reset_dev(struct hci_dev *hdev); 1728 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1729 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1730 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1731 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1732 1733 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1734 { 1735 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1736 hdev->msft_opcode = opcode; 1737 #endif 1738 } 1739 1740 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1741 { 1742 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1743 hdev->aosp_capable = true; 1744 #endif 1745 } 1746 1747 static inline void hci_devcd_setup(struct hci_dev *hdev) 1748 { 1749 #ifdef CONFIG_DEV_COREDUMP 1750 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); 1751 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); 1752 skb_queue_head_init(&hdev->dump.dump_q); 1753 #endif 1754 } 1755 1756 int hci_dev_open(__u16 dev); 1757 int hci_dev_close(__u16 dev); 1758 int hci_dev_do_close(struct hci_dev *hdev); 1759 int hci_dev_reset(__u16 dev); 1760 int hci_dev_reset_stat(__u16 dev); 1761 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1762 int hci_get_dev_list(void __user *arg); 1763 int hci_get_dev_info(void __user *arg); 1764 int hci_get_conn_list(void __user *arg); 1765 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1766 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1767 int hci_inquiry(void __user *arg); 1768 1769 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1770 bdaddr_t *bdaddr, u8 type); 1771 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1772 struct list_head *list, bdaddr_t *bdaddr, 1773 u8 type); 1774 struct bdaddr_list_with_flags * 1775 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1776 u8 type); 1777 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1778 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1779 u8 type, u8 *peer_irk, u8 *local_irk); 1780 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1781 u8 type, u32 flags); 1782 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1783 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1784 u8 type); 1785 void hci_bdaddr_list_clear(struct list_head *list); 1786 1787 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1788 bdaddr_t *addr, u8 addr_type); 1789 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1790 bdaddr_t *addr, u8 addr_type); 1791 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1792 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1793 void hci_conn_params_free(struct hci_conn_params *param); 1794 1795 void hci_pend_le_list_del_init(struct hci_conn_params *param); 1796 void hci_pend_le_list_add(struct hci_conn_params *param, 1797 struct list_head *list); 1798 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1799 bdaddr_t *addr, 1800 u8 addr_type); 1801 1802 void hci_uuids_clear(struct hci_dev *hdev); 1803 1804 void hci_link_keys_clear(struct hci_dev *hdev); 1805 u8 *hci_conn_key_enc_size(struct hci_conn *conn); 1806 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1807 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1808 bdaddr_t *bdaddr, u8 *val, u8 type, 1809 u8 pin_len, bool *persistent); 1810 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1811 u8 addr_type, u8 type, u8 authenticated, 1812 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1813 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1814 u8 addr_type, u8 role); 1815 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1816 void hci_smp_ltks_clear(struct hci_dev *hdev); 1817 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1818 1819 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1820 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1821 u8 addr_type); 1822 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1823 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1824 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1825 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1826 void hci_blocked_keys_clear(struct hci_dev *hdev); 1827 void hci_smp_irks_clear(struct hci_dev *hdev); 1828 1829 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1830 1831 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1832 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1833 bdaddr_t *bdaddr, u8 bdaddr_type); 1834 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1835 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1836 u8 *hash256, u8 *rand256); 1837 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1838 u8 bdaddr_type); 1839 1840 void hci_adv_instances_clear(struct hci_dev *hdev); 1841 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1842 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid); 1843 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1844 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, 1845 u32 flags, u16 adv_data_len, u8 *adv_data, 1846 u16 scan_rsp_len, u8 *scan_rsp_data, 1847 u16 timeout, u16 duration, s8 tx_power, 1848 u32 min_interval, u32 max_interval, 1849 u8 mesh_handle); 1850 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid, 1851 u32 flags, u8 data_len, u8 *data, 1852 u32 min_interval, u32 max_interval); 1853 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1854 u16 adv_data_len, u8 *adv_data, 1855 u16 scan_rsp_len, u8 *scan_rsp_data); 1856 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1857 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1858 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1859 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1860 1861 void hci_adv_monitors_clear(struct hci_dev *hdev); 1862 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1863 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1864 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); 1865 int hci_remove_all_adv_monitor(struct hci_dev *hdev); 1866 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1867 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1868 1869 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1870 1871 void hci_init_sysfs(struct hci_dev *hdev); 1872 void hci_conn_init_sysfs(struct hci_conn *conn); 1873 void hci_conn_add_sysfs(struct hci_conn *conn); 1874 void hci_conn_del_sysfs(struct hci_conn *conn); 1875 1876 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1877 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) 1878 1879 /* ----- LMP capabilities ----- */ 1880 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1881 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1882 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1883 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1884 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1885 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO) 1886 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1887 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1888 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1889 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1890 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1891 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1892 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1893 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1894 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1895 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1896 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1897 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1898 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1899 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1900 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1901 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1902 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1903 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1904 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1905 1906 /* ----- Extended LMP capabilities ----- */ 1907 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1908 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1909 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1910 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1911 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1912 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1913 1914 /* ----- Host capabilities ----- */ 1915 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1916 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1917 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1918 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1919 1920 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1921 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1922 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1923 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1924 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1925 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1926 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1927 !adv->rpa_expired) 1928 1929 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1930 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1931 1932 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) 1933 1934 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1935 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1936 1937 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ 1938 !hci_test_quirk((dev), \ 1939 HCI_QUIRK_BROKEN_LE_CODED)) 1940 1941 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1942 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1943 1944 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1945 1946 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \ 1947 ((dev)->commands[39] & 0x04)) 1948 1949 #define read_key_size_capable(dev) \ 1950 ((dev)->commands[20] & 0x10 && \ 1951 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE)) 1952 1953 #define read_voice_setting_capable(dev) \ 1954 ((dev)->commands[9] & 0x04 && \ 1955 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_VOICE_SETTING)) 1956 1957 /* Use enhanced synchronous connection if command is supported and its quirk 1958 * has not been set. 1959 */ 1960 #define enhanced_sync_conn_capable(dev) \ 1961 (((dev)->commands[29] & 0x08) && \ 1962 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN)) 1963 1964 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1965 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1966 ((dev)->commands[37] & 0x40) && \ 1967 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_SCAN)) 1968 1969 /* Use ext create connection if command is supported */ 1970 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \ 1971 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 1972 /* Extended advertising support */ 1973 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1974 1975 /* Maximum advertising length */ 1976 #define max_adv_len(dev) \ 1977 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) 1978 1979 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 1980 * 1981 * C24: Mandatory if the LE Controller supports Connection State and either 1982 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 1983 */ 1984 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \ 1985 ext_adv_capable(dev)) && \ 1986 !hci_test_quirk((dev), \ 1987 HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 1988 1989 /* Periodic advertising support */ 1990 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) 1991 1992 /* CIS Master/Slave and BIS support */ 1993 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) 1994 #define cis_capable(dev) \ 1995 (cis_central_capable(dev) || cis_peripheral_capable(dev)) 1996 #define cis_central_capable(dev) \ 1997 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) 1998 #define cis_peripheral_capable(dev) \ 1999 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) 2000 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) 2001 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) 2002 2003 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ 2004 (!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG))) 2005 2006 /* ----- HCI protocols ----- */ 2007 #define HCI_PROTO_DEFER 0x01 2008 2009 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 2010 __u8 type, __u8 *flags) 2011 { 2012 switch (type) { 2013 case ACL_LINK: 2014 return l2cap_connect_ind(hdev, bdaddr); 2015 2016 case SCO_LINK: 2017 case ESCO_LINK: 2018 return sco_connect_ind(hdev, bdaddr, flags); 2019 2020 case CIS_LINK: 2021 case BIS_LINK: 2022 return iso_connect_ind(hdev, bdaddr, flags); 2023 2024 default: 2025 BT_ERR("unknown link type %d", type); 2026 return -EINVAL; 2027 } 2028 } 2029 2030 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 2031 { 2032 if (conn->type != ACL_LINK && conn->type != LE_LINK) 2033 return HCI_ERROR_REMOTE_USER_TERM; 2034 2035 return l2cap_disconn_ind(conn); 2036 } 2037 2038 /* ----- HCI callbacks ----- */ 2039 struct hci_cb { 2040 struct list_head list; 2041 2042 char *name; 2043 2044 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 2045 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 2046 void (*security_cfm) (struct hci_conn *conn, __u8 status, 2047 __u8 encrypt); 2048 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 2049 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 2050 }; 2051 2052 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 2053 { 2054 struct hci_cb *cb; 2055 2056 mutex_lock(&hci_cb_list_lock); 2057 list_for_each_entry(cb, &hci_cb_list, list) { 2058 if (cb->connect_cfm) 2059 cb->connect_cfm(conn, status); 2060 } 2061 mutex_unlock(&hci_cb_list_lock); 2062 2063 if (conn->connect_cfm_cb) 2064 conn->connect_cfm_cb(conn, status); 2065 } 2066 2067 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 2068 { 2069 struct hci_cb *cb; 2070 2071 mutex_lock(&hci_cb_list_lock); 2072 list_for_each_entry(cb, &hci_cb_list, list) { 2073 if (cb->disconn_cfm) 2074 cb->disconn_cfm(conn, reason); 2075 } 2076 mutex_unlock(&hci_cb_list_lock); 2077 2078 if (conn->disconn_cfm_cb) 2079 conn->disconn_cfm_cb(conn, reason); 2080 } 2081 2082 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 2083 { 2084 struct hci_cb *cb; 2085 __u8 encrypt; 2086 2087 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 2088 return; 2089 2090 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 2091 2092 mutex_lock(&hci_cb_list_lock); 2093 list_for_each_entry(cb, &hci_cb_list, list) { 2094 if (cb->security_cfm) 2095 cb->security_cfm(conn, status, encrypt); 2096 } 2097 mutex_unlock(&hci_cb_list_lock); 2098 2099 if (conn->security_cfm_cb) 2100 conn->security_cfm_cb(conn, status); 2101 } 2102 2103 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 2104 { 2105 struct hci_cb *cb; 2106 __u8 encrypt; 2107 2108 if (conn->state == BT_CONFIG) { 2109 if (!status) 2110 conn->state = BT_CONNECTED; 2111 2112 hci_connect_cfm(conn, status); 2113 hci_conn_drop(conn); 2114 return; 2115 } 2116 2117 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 2118 encrypt = 0x00; 2119 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 2120 encrypt = 0x02; 2121 else 2122 encrypt = 0x01; 2123 2124 if (!status) { 2125 if (conn->sec_level == BT_SECURITY_SDP) 2126 conn->sec_level = BT_SECURITY_LOW; 2127 2128 if (conn->pending_sec_level > conn->sec_level) 2129 conn->sec_level = conn->pending_sec_level; 2130 } 2131 2132 mutex_lock(&hci_cb_list_lock); 2133 list_for_each_entry(cb, &hci_cb_list, list) { 2134 if (cb->security_cfm) 2135 cb->security_cfm(conn, status, encrypt); 2136 } 2137 mutex_unlock(&hci_cb_list_lock); 2138 2139 if (conn->security_cfm_cb) 2140 conn->security_cfm_cb(conn, status); 2141 } 2142 2143 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 2144 { 2145 struct hci_cb *cb; 2146 2147 mutex_lock(&hci_cb_list_lock); 2148 list_for_each_entry(cb, &hci_cb_list, list) { 2149 if (cb->key_change_cfm) 2150 cb->key_change_cfm(conn, status); 2151 } 2152 mutex_unlock(&hci_cb_list_lock); 2153 } 2154 2155 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 2156 __u8 role) 2157 { 2158 struct hci_cb *cb; 2159 2160 mutex_lock(&hci_cb_list_lock); 2161 list_for_each_entry(cb, &hci_cb_list, list) { 2162 if (cb->role_switch_cfm) 2163 cb->role_switch_cfm(conn, status, role); 2164 } 2165 mutex_unlock(&hci_cb_list_lock); 2166 } 2167 2168 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 2169 { 2170 if (addr_type != ADDR_LE_DEV_RANDOM) 2171 return false; 2172 2173 if ((bdaddr->b[5] & 0xc0) == 0x40) 2174 return true; 2175 2176 return false; 2177 } 2178 2179 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 2180 { 2181 if (addr_type == ADDR_LE_DEV_PUBLIC) 2182 return true; 2183 2184 /* Check for Random Static address type */ 2185 if ((addr->b[5] & 0xc0) == 0xc0) 2186 return true; 2187 2188 return false; 2189 } 2190 2191 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 2192 bdaddr_t *bdaddr, u8 addr_type) 2193 { 2194 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 2195 return NULL; 2196 2197 return hci_find_irk_by_rpa(hdev, bdaddr); 2198 } 2199 2200 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 2201 u16 to_multiplier) 2202 { 2203 u16 max_latency; 2204 2205 if (min > max) { 2206 BT_WARN("min %d > max %d", min, max); 2207 return -EINVAL; 2208 } 2209 2210 if (min < 6) { 2211 BT_WARN("min %d < 6", min); 2212 return -EINVAL; 2213 } 2214 2215 if (max > 3200) { 2216 BT_WARN("max %d > 3200", max); 2217 return -EINVAL; 2218 } 2219 2220 if (to_multiplier < 10) { 2221 BT_WARN("to_multiplier %d < 10", to_multiplier); 2222 return -EINVAL; 2223 } 2224 2225 if (to_multiplier > 3200) { 2226 BT_WARN("to_multiplier %d > 3200", to_multiplier); 2227 return -EINVAL; 2228 } 2229 2230 if (max >= to_multiplier * 8) { 2231 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); 2232 return -EINVAL; 2233 } 2234 2235 max_latency = (to_multiplier * 4 / max) - 1; 2236 if (latency > 499) { 2237 BT_WARN("latency %d > 499", latency); 2238 return -EINVAL; 2239 } 2240 2241 if (latency > max_latency) { 2242 BT_WARN("latency %d > max_latency %d", latency, max_latency); 2243 return -EINVAL; 2244 } 2245 2246 return 0; 2247 } 2248 2249 int hci_register_cb(struct hci_cb *hcb); 2250 int hci_unregister_cb(struct hci_cb *hcb); 2251 2252 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 2253 const void *param); 2254 2255 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 2256 const void *param); 2257 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 2258 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 2259 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); 2260 2261 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 2262 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); 2263 2264 u32 hci_conn_get_phy(struct hci_conn *conn); 2265 2266 /* ----- HCI Sockets ----- */ 2267 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 2268 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 2269 int flag, struct sock *skip_sk); 2270 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 2271 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 2272 void *data, u16 data_len, ktime_t tstamp, 2273 int flag, struct sock *skip_sk); 2274 2275 void hci_sock_dev_event(struct hci_dev *hdev, int event); 2276 2277 #define HCI_MGMT_VAR_LEN BIT(0) 2278 #define HCI_MGMT_NO_HDEV BIT(1) 2279 #define HCI_MGMT_UNTRUSTED BIT(2) 2280 #define HCI_MGMT_UNCONFIGURED BIT(3) 2281 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 2282 2283 struct hci_mgmt_handler { 2284 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2285 u16 data_len); 2286 size_t data_len; 2287 unsigned long flags; 2288 }; 2289 2290 struct hci_mgmt_chan { 2291 struct list_head list; 2292 unsigned short channel; 2293 size_t handler_count; 2294 const struct hci_mgmt_handler *handlers; 2295 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 2296 }; 2297 2298 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 2299 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 2300 2301 /* Management interface */ 2302 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 2303 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 2304 BIT(BDADDR_LE_RANDOM)) 2305 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 2306 BIT(BDADDR_LE_PUBLIC) | \ 2307 BIT(BDADDR_LE_RANDOM)) 2308 2309 /* These LE scan and inquiry parameters were chosen according to LE General 2310 * Discovery Procedure specification. 2311 */ 2312 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ 2313 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ 2314 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ 2315 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ 2316 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ 2317 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ 2318 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ 2319 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ 2320 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ 2321 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ 2322 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ 2323 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ 2324 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ 2325 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ 2326 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ 2327 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ 2328 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 2329 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 2330 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 2331 #define DISCOV_BREDR_INQUIRY_LEN 0x08 2332 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 2333 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 2334 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 2335 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ 2336 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ 2337 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ 2338 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ 2339 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) 2340 2341 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 2342 2343 void mgmt_fill_version_info(void *ver); 2344 int mgmt_new_settings(struct hci_dev *hdev); 2345 void mgmt_index_added(struct hci_dev *hdev); 2346 void mgmt_index_removed(struct hci_dev *hdev); 2347 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 2348 void mgmt_power_on(struct hci_dev *hdev, int err); 2349 void __mgmt_power_off(struct hci_dev *hdev); 2350 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 2351 bool persistent); 2352 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 2353 u8 *name, u8 name_len); 2354 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 2355 u8 link_type, u8 addr_type, u8 reason, 2356 bool mgmt_connected); 2357 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 2358 u8 link_type, u8 addr_type, u8 status); 2359 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, 2360 u8 status); 2361 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 2362 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2363 u8 status); 2364 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2365 u8 status); 2366 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2367 u8 link_type, u8 addr_type, u32 value, 2368 u8 confirm_hint); 2369 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2370 u8 link_type, u8 addr_type, u8 status); 2371 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2372 u8 link_type, u8 addr_type, u8 status); 2373 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2374 u8 link_type, u8 addr_type); 2375 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2376 u8 link_type, u8 addr_type, u8 status); 2377 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2378 u8 link_type, u8 addr_type, u8 status); 2379 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 2380 u8 link_type, u8 addr_type, u32 passkey, 2381 u8 entered); 2382 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 2383 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 2384 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 2385 u8 status); 2386 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 2387 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2388 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 2389 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, 2390 u64 instant); 2391 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2392 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 2393 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 2394 void mgmt_suspending(struct hci_dev *hdev, u8 state); 2395 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 2396 u8 addr_type); 2397 bool mgmt_powering_down(struct hci_dev *hdev); 2398 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 2399 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 2400 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 2401 bool persistent); 2402 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 2403 u8 bdaddr_type, u8 store_hint, u16 min_interval, 2404 u16 max_interval, u16 latency, u16 timeout); 2405 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 2406 bool mgmt_get_connectable(struct hci_dev *hdev); 2407 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 2408 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 2409 u8 instance); 2410 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 2411 u8 instance); 2412 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 2413 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, 2414 bdaddr_t *bdaddr, u8 addr_type); 2415 2416 int hci_abort_conn(struct hci_conn *conn, u8 reason); 2417 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 2418 u16 to_multiplier); 2419 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 2420 __u8 ltk[16], __u8 key_size); 2421 2422 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 2423 u8 *bdaddr_type); 2424 2425 #define SCO_AIRMODE_MASK 0x0003 2426 #define SCO_AIRMODE_CVSD 0x0000 2427 #define SCO_AIRMODE_TRANSP 0x0003 2428 2429 #define LOCAL_CODEC_ACL_MASK BIT(0) 2430 #define LOCAL_CODEC_SCO_MASK BIT(1) 2431 2432 #define TRANSPORT_TYPE_MAX 0x04 2433 2434 #endif /* __HCI_CORE_H */ 2435