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