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/spinlock.h> 33 #include <linux/srcu.h> 34 35 #include <net/bluetooth/hci.h> 36 #include <net/bluetooth/hci_drv.h> 37 #include <net/bluetooth/hci_sync.h> 38 #include <net/bluetooth/hci_sock.h> 39 #include <net/bluetooth/coredump.h> 40 41 /* HCI priority */ 42 #define HCI_PRIO_MAX 7 43 44 /* HCI maximum id value */ 45 #define HCI_MAX_ID 10000 46 47 /* HCI Core structures */ 48 struct inquiry_data { 49 bdaddr_t bdaddr; 50 __u8 pscan_rep_mode; 51 __u8 pscan_period_mode; 52 __u8 pscan_mode; 53 __u8 dev_class[3]; 54 __le16 clock_offset; 55 __s8 rssi; 56 __u8 ssp_mode; 57 }; 58 59 struct inquiry_entry { 60 struct list_head all; /* inq_cache.all */ 61 struct list_head list; /* unknown or resolve */ 62 enum { 63 NAME_NOT_KNOWN, 64 NAME_NEEDED, 65 NAME_PENDING, 66 NAME_KNOWN, 67 } name_state; 68 __u32 timestamp; 69 struct inquiry_data data; 70 }; 71 72 struct discovery_state { 73 int type; 74 enum { 75 DISCOVERY_STOPPED, 76 DISCOVERY_STARTING, 77 DISCOVERY_FINDING, 78 DISCOVERY_RESOLVING, 79 DISCOVERY_STOPPING, 80 } state; 81 struct list_head all; /* All devices found during inquiry */ 82 struct list_head unknown; /* Name state not known */ 83 struct list_head resolve; /* Name needs to be resolved */ 84 __u32 timestamp; 85 bdaddr_t last_adv_addr; 86 u8 last_adv_addr_type; 87 s8 last_adv_rssi; 88 u32 last_adv_flags; 89 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH]; 90 u8 last_adv_data_len; 91 bool report_invalid_rssi; 92 bool result_filtering; 93 bool limited; 94 s8 rssi; 95 u16 uuid_count; 96 u8 (*uuids)[16]; 97 unsigned long name_resolve_timeout; 98 spinlock_t lock; 99 }; 100 101 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 102 103 enum suspend_tasks { 104 SUSPEND_PAUSE_DISCOVERY, 105 SUSPEND_UNPAUSE_DISCOVERY, 106 107 SUSPEND_PAUSE_ADVERTISING, 108 SUSPEND_UNPAUSE_ADVERTISING, 109 110 SUSPEND_SCAN_DISABLE, 111 SUSPEND_SCAN_ENABLE, 112 SUSPEND_DISCONNECTING, 113 114 SUSPEND_POWERING_DOWN, 115 116 SUSPEND_PREPARE_NOTIFIER, 117 118 SUSPEND_SET_ADV_FILTER, 119 __SUSPEND_NUM_TASKS 120 }; 121 122 enum suspended_state { 123 BT_RUNNING = 0, 124 BT_SUSPEND_DISCONNECT, 125 BT_SUSPEND_CONFIGURE_WAKE, 126 }; 127 128 struct hci_conn_hash { 129 struct list_head list; 130 unsigned int acl_num; 131 unsigned int sco_num; 132 unsigned int cis_num; 133 unsigned int bis_num; 134 unsigned int pa_num; 135 unsigned int le_num; 136 unsigned int le_num_peripheral; 137 }; 138 139 struct bdaddr_list { 140 struct list_head list; 141 bdaddr_t bdaddr; 142 u8 bdaddr_type; 143 }; 144 145 struct codec_list { 146 struct list_head list; 147 u8 id; 148 __u16 cid; 149 __u16 vid; 150 u8 transport; 151 u8 num_caps; 152 u32 len; 153 struct hci_codec_caps caps[]; 154 }; 155 156 struct bdaddr_list_with_irk { 157 struct list_head list; 158 bdaddr_t bdaddr; 159 u8 bdaddr_type; 160 u8 peer_irk[16]; 161 u8 local_irk[16]; 162 }; 163 164 /* Bitmask of connection flags */ 165 enum hci_conn_flags { 166 HCI_CONN_FLAG_REMOTE_WAKEUP = BIT(0), 167 HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1), 168 HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(2), 169 }; 170 typedef u8 hci_conn_flags_t; 171 172 struct bdaddr_list_with_flags { 173 struct list_head list; 174 bdaddr_t bdaddr; 175 u8 bdaddr_type; 176 hci_conn_flags_t flags; 177 }; 178 179 struct bt_uuid { 180 struct list_head list; 181 u8 uuid[16]; 182 u8 size; 183 u8 svc_hint; 184 }; 185 186 struct blocked_key { 187 struct list_head list; 188 struct rcu_head rcu; 189 u8 type; 190 u8 val[16]; 191 }; 192 193 struct smp_csrk { 194 bdaddr_t bdaddr; 195 u8 bdaddr_type; 196 u8 type; 197 u8 val[16]; 198 }; 199 200 struct smp_ltk { 201 struct list_head list; 202 struct rcu_head rcu; 203 bdaddr_t bdaddr; 204 u8 bdaddr_type; 205 u8 authenticated; 206 u8 type; 207 u8 enc_size; 208 __le16 ediv; 209 __le64 rand; 210 u8 val[16]; 211 }; 212 213 struct smp_irk { 214 struct list_head list; 215 struct rcu_head rcu; 216 bdaddr_t rpa; 217 bdaddr_t bdaddr; 218 u8 addr_type; 219 u8 val[16]; 220 }; 221 222 struct link_key { 223 struct list_head list; 224 struct rcu_head rcu; 225 bdaddr_t bdaddr; 226 u8 type; 227 u8 val[HCI_LINK_KEY_SIZE]; 228 u8 pin_len; 229 }; 230 231 struct oob_data { 232 struct list_head list; 233 bdaddr_t bdaddr; 234 u8 bdaddr_type; 235 u8 present; 236 u8 hash192[16]; 237 u8 rand192[16]; 238 u8 hash256[16]; 239 u8 rand256[16]; 240 }; 241 242 struct adv_info { 243 struct list_head list; 244 bool enabled; 245 bool pending; 246 bool periodic; 247 __u8 mesh; 248 __u8 instance; 249 __u8 handle; 250 __u8 sid; 251 __u32 flags; 252 __u16 timeout; 253 __u16 remaining_time; 254 __u16 duration; 255 __u16 adv_data_len; 256 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 257 bool adv_data_changed; 258 __u16 scan_rsp_len; 259 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 260 bool scan_rsp_changed; 261 __u16 per_adv_data_len; 262 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 263 __s8 tx_power; 264 __u32 min_interval; 265 __u32 max_interval; 266 bdaddr_t random_addr; 267 bool rpa_expired; 268 struct delayed_work rpa_expired_cb; 269 }; 270 271 struct tx_queue { 272 struct sk_buff_head queue; 273 unsigned int extra; 274 unsigned int tracked; 275 }; 276 277 #define HCI_MAX_ADV_INSTANCES 5 278 #define HCI_DEFAULT_ADV_DURATION 2 279 280 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 281 282 #define DATA_CMP(_d1, _l1, _d2, _l2) \ 283 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) 284 285 #define ADV_DATA_CMP(_adv, _data, _len) \ 286 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) 287 288 #define SCAN_RSP_CMP(_adv, _data, _len) \ 289 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) 290 291 struct monitored_device { 292 struct list_head list; 293 294 bdaddr_t bdaddr; 295 __u8 addr_type; 296 __u16 handle; 297 bool notified; 298 }; 299 300 struct adv_pattern { 301 struct list_head list; 302 __u8 ad_type; 303 __u8 offset; 304 __u8 length; 305 __u8 value[HCI_MAX_EXT_AD_LENGTH]; 306 }; 307 308 struct adv_rssi_thresholds { 309 __s8 low_threshold; 310 __s8 high_threshold; 311 __u16 low_threshold_timeout; 312 __u16 high_threshold_timeout; 313 __u8 sampling_period; 314 }; 315 316 struct adv_monitor { 317 struct list_head patterns; 318 struct adv_rssi_thresholds rssi; 319 __u16 handle; 320 321 enum { 322 ADV_MONITOR_STATE_NOT_REGISTERED, 323 ADV_MONITOR_STATE_REGISTERED, 324 ADV_MONITOR_STATE_OFFLOADED 325 } state; 326 }; 327 328 #define HCI_MIN_ADV_MONITOR_HANDLE 1 329 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 330 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 331 #define HCI_ADV_MONITOR_EXT_NONE 1 332 #define HCI_ADV_MONITOR_EXT_MSFT 2 333 334 #define HCI_MAX_SHORT_NAME_LENGTH 10 335 336 #define HCI_CONN_HANDLE_MAX 0x0eff 337 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) 338 339 /* Min encryption key size to match with SMP */ 340 #define HCI_MIN_ENC_KEY_SIZE 7 341 342 /* Default LE RPA expiry time, 15 minutes */ 343 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 344 345 /* Default min/max age of connection information (1s/3s) */ 346 #define DEFAULT_CONN_INFO_MIN_AGE 1000 347 #define DEFAULT_CONN_INFO_MAX_AGE 3000 348 /* Default authenticated payload timeout 30s */ 349 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 350 351 #define HCI_MAX_PAGES 3 352 353 struct hci_dev { 354 struct list_head list; 355 struct srcu_struct srcu; 356 struct mutex lock; 357 358 struct ida unset_handle_ida; 359 360 const char *name; 361 unsigned long flags; 362 __u16 id; 363 __u8 bus; 364 bdaddr_t bdaddr; 365 bdaddr_t setup_addr; 366 bdaddr_t public_addr; 367 bdaddr_t random_addr; 368 bdaddr_t static_addr; 369 __u8 adv_addr_type; 370 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 371 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 372 __u8 eir[HCI_MAX_EIR_LENGTH]; 373 __u16 appearance; 374 __u8 dev_class[3]; 375 __u8 major_class; 376 __u8 minor_class; 377 __u8 max_page; 378 __u8 features[HCI_MAX_PAGES][8]; 379 __u8 le_features[8]; 380 __u8 le_accept_list_size; 381 __u8 le_resolv_list_size; 382 __u8 le_num_of_adv_sets; 383 __u8 le_states[8]; 384 __u8 mesh_ad_types[16]; 385 __u8 mesh_send_ref; 386 __u8 commands[64]; 387 __u8 hci_ver; 388 __u16 hci_rev; 389 __u8 lmp_ver; 390 __u16 manufacturer; 391 __u16 lmp_subver; 392 __u16 voice_setting; 393 __u8 num_iac; 394 __u16 stored_max_keys; 395 __u16 stored_num_keys; 396 __u8 io_capability; 397 __s8 inq_tx_power; 398 __u8 err_data_reporting; 399 __u16 page_scan_interval; 400 __u16 page_scan_window; 401 __u8 page_scan_type; 402 __u8 le_adv_channel_map; 403 __u16 le_adv_min_interval; 404 __u16 le_adv_max_interval; 405 __u8 le_scan_type; 406 __u16 le_scan_interval; 407 __u16 le_scan_window; 408 __u16 le_scan_int_suspend; 409 __u16 le_scan_window_suspend; 410 __u16 le_scan_int_discovery; 411 __u16 le_scan_window_discovery; 412 __u16 le_scan_int_adv_monitor; 413 __u16 le_scan_window_adv_monitor; 414 __u16 le_scan_int_connect; 415 __u16 le_scan_window_connect; 416 __u16 le_conn_min_interval; 417 __u16 le_conn_max_interval; 418 __u16 le_conn_latency; 419 __u16 le_supv_timeout; 420 __u16 le_def_tx_len; 421 __u16 le_def_tx_time; 422 __u16 le_max_tx_len; 423 __u16 le_max_tx_time; 424 __u16 le_max_rx_len; 425 __u16 le_max_rx_time; 426 __u8 le_max_key_size; 427 __u8 le_min_key_size; 428 __u16 discov_interleaved_timeout; 429 __u16 conn_info_min_age; 430 __u16 conn_info_max_age; 431 __u16 auth_payload_timeout; 432 __u8 min_enc_key_size; 433 __u8 max_enc_key_size; 434 __u8 pairing_opts; 435 __u8 ssp_debug_mode; 436 __u8 hw_error_code; 437 __u32 clock; 438 __u16 advmon_allowlist_duration; 439 __u16 advmon_no_filter_duration; 440 __u8 enable_advmon_interleave_scan; 441 442 __u16 devid_source; 443 __u16 devid_vendor; 444 __u16 devid_product; 445 __u16 devid_version; 446 447 __u8 def_page_scan_type; 448 __u16 def_page_scan_int; 449 __u16 def_page_scan_window; 450 __u8 def_inq_scan_type; 451 __u16 def_inq_scan_int; 452 __u16 def_inq_scan_window; 453 __u16 def_br_lsto; 454 __u16 def_page_timeout; 455 __u16 def_multi_adv_rotation_duration; 456 __u16 def_le_autoconnect_timeout; 457 __s8 min_le_tx_power; 458 __s8 max_le_tx_power; 459 460 __u16 pkt_type; 461 __u16 esco_type; 462 __u16 link_policy; 463 __u16 link_mode; 464 465 __u32 idle_timeout; 466 __u16 sniff_min_interval; 467 __u16 sniff_max_interval; 468 469 unsigned int auto_accept_delay; 470 471 DECLARE_BITMAP(quirk_flags, __HCI_NUM_QUIRKS); 472 473 atomic_t cmd_cnt; 474 unsigned int acl_cnt; 475 unsigned int sco_cnt; 476 unsigned int le_cnt; 477 unsigned int iso_cnt; 478 479 unsigned int acl_mtu; 480 unsigned int sco_mtu; 481 unsigned int le_mtu; 482 unsigned int iso_mtu; 483 unsigned int acl_pkts; 484 unsigned int sco_pkts; 485 unsigned int le_pkts; 486 unsigned int iso_pkts; 487 488 unsigned long acl_last_tx; 489 unsigned long le_last_tx; 490 unsigned long iso_last_tx; 491 492 __u8 le_tx_def_phys; 493 __u8 le_rx_def_phys; 494 495 struct workqueue_struct *workqueue; 496 struct workqueue_struct *req_workqueue; 497 498 struct work_struct power_on; 499 struct delayed_work power_off; 500 struct work_struct error_reset; 501 struct work_struct cmd_sync_work; 502 struct list_head cmd_sync_work_list; 503 struct mutex cmd_sync_work_lock; 504 struct mutex unregister_lock; 505 struct work_struct cmd_sync_cancel_work; 506 struct work_struct reenable_adv_work; 507 508 __u16 discov_timeout; 509 struct delayed_work discov_off; 510 511 struct delayed_work service_cache; 512 513 struct delayed_work cmd_timer; 514 struct delayed_work ncmd_timer; 515 516 struct work_struct rx_work; 517 struct work_struct cmd_work; 518 struct work_struct tx_work; 519 520 struct delayed_work le_scan_disable; 521 522 struct sk_buff_head rx_q; 523 struct sk_buff_head raw_q; 524 struct sk_buff_head cmd_q; 525 526 struct sk_buff *sent_cmd; 527 struct sk_buff *recv_event; 528 529 struct mutex req_lock; 530 wait_queue_head_t req_wait_q; 531 __u32 req_status; 532 __u32 req_result; 533 struct sk_buff *req_skb; 534 struct sk_buff *req_rsp; 535 536 void *smp_data; 537 void *smp_bredr_data; 538 539 struct discovery_state discovery; 540 541 bool discovery_paused; 542 int advertising_old_state; 543 bool advertising_paused; 544 545 struct notifier_block suspend_notifier; 546 enum suspended_state suspend_state_next; 547 enum suspended_state suspend_state; 548 bool scanning_paused; 549 bool suspended; 550 u8 wake_reason; 551 bdaddr_t wake_addr; 552 u8 wake_addr_type; 553 554 struct hci_conn_hash conn_hash; 555 556 struct list_head mesh_pending; 557 struct mutex mgmt_pending_lock; 558 struct list_head mgmt_pending; 559 struct list_head reject_list; 560 struct list_head accept_list; 561 struct list_head uuids; 562 struct list_head link_keys; 563 struct list_head long_term_keys; 564 struct list_head identity_resolving_keys; 565 struct list_head remote_oob_data; 566 struct list_head le_accept_list; 567 struct list_head le_resolv_list; 568 struct list_head le_conn_params; 569 struct list_head pend_le_conns; 570 struct list_head pend_le_reports; 571 struct list_head blocked_keys; 572 struct list_head local_codecs; 573 574 struct hci_dev_stats stat; 575 576 atomic_t promisc; 577 578 const char *hw_info; 579 const char *fw_info; 580 struct dentry *debugfs; 581 582 struct hci_devcoredump dump; 583 584 struct device dev; 585 586 struct rfkill *rfkill; 587 588 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 589 hci_conn_flags_t conn_flags; 590 591 __s8 adv_tx_power; 592 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 593 __u8 adv_data_len; 594 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 595 __u8 scan_rsp_data_len; 596 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 597 __u8 per_adv_data_len; 598 599 struct list_head adv_instances; 600 unsigned int adv_instance_cnt; 601 __u8 cur_adv_instance; 602 __u16 adv_instance_timeout; 603 struct delayed_work adv_instance_expire; 604 605 struct idr adv_monitors_idr; 606 unsigned int adv_monitors_cnt; 607 608 __u8 irk[16]; 609 __u32 rpa_timeout; 610 struct delayed_work rpa_expired; 611 bdaddr_t rpa; 612 613 struct delayed_work mesh_send_done; 614 615 enum { 616 INTERLEAVE_SCAN_NONE, 617 INTERLEAVE_SCAN_NO_FILTER, 618 INTERLEAVE_SCAN_ALLOWLIST 619 } interleave_scan_state; 620 621 struct delayed_work interleave_scan; 622 623 struct list_head monitored_devices; 624 bool advmon_pend_notify; 625 626 struct hci_drv *hci_drv; 627 628 #if IS_ENABLED(CONFIG_BT_LEDS) 629 struct led_trigger *power_led; 630 #endif 631 632 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 633 __u16 msft_opcode; 634 void *msft_data; 635 bool msft_curve_validity; 636 #endif 637 638 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 639 bool aosp_capable; 640 bool aosp_quality_report; 641 #endif 642 643 int (*open)(struct hci_dev *hdev); 644 int (*close)(struct hci_dev *hdev); 645 int (*flush)(struct hci_dev *hdev); 646 int (*setup)(struct hci_dev *hdev); 647 int (*shutdown)(struct hci_dev *hdev); 648 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 649 void (*notify)(struct hci_dev *hdev, unsigned int evt); 650 void (*hw_error)(struct hci_dev *hdev, u8 code); 651 int (*post_init)(struct hci_dev *hdev); 652 int (*set_diag)(struct hci_dev *hdev, bool enable); 653 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 654 void (*reset)(struct hci_dev *hdev); 655 bool (*wakeup)(struct hci_dev *hdev); 656 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 657 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 658 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 659 struct bt_codec *codec, __u8 *vnd_len, 660 __u8 **vnd_data); 661 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); 662 }; 663 664 #define hci_set_quirk(hdev, nr) set_bit((nr), (hdev)->quirk_flags) 665 #define hci_clear_quirk(hdev, nr) clear_bit((nr), (hdev)->quirk_flags) 666 #define hci_test_quirk(hdev, nr) test_bit((nr), (hdev)->quirk_flags) 667 668 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 669 670 enum conn_reasons { 671 CONN_REASON_PAIR_DEVICE, 672 CONN_REASON_L2CAP_CHAN, 673 CONN_REASON_SCO_CONNECT, 674 CONN_REASON_ISO_CONNECT, 675 }; 676 677 struct hci_conn { 678 struct list_head list; 679 680 atomic_t refcnt; 681 682 bdaddr_t dst; 683 __u8 dst_type; 684 bdaddr_t src; 685 __u8 src_type; 686 bdaddr_t init_addr; 687 __u8 init_addr_type; 688 bdaddr_t resp_addr; 689 __u8 resp_addr_type; 690 __u8 adv_instance; 691 __u16 handle; 692 __u16 sync_handle; 693 __u8 sid; 694 __u16 state; 695 __u16 mtu; 696 __u8 mode; 697 __u8 type; 698 __u8 role; 699 bool out; 700 __u8 attempt; 701 __u8 dev_class[3]; 702 __u8 features[HCI_MAX_PAGES][8]; 703 __u16 pkt_type; 704 __u16 link_policy; 705 __u8 key_type; 706 __u8 auth_type; 707 __u8 sec_level; 708 __u8 pending_sec_level; 709 __u8 pin_length; 710 __u8 enc_key_size; 711 __u8 io_capability; 712 __u32 passkey_notify; 713 __u8 passkey_entered; 714 __u16 disc_timeout; 715 __u16 conn_timeout; 716 __u16 setting; 717 __u16 auth_payload_timeout; 718 __u16 le_conn_min_interval; 719 __u16 le_conn_max_interval; 720 __u16 le_conn_interval; 721 __u16 le_conn_latency; 722 __u16 le_supv_timeout; 723 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; 724 __u8 le_adv_data_len; 725 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; 726 __u16 le_per_adv_data_len; 727 __u16 le_per_adv_data_offset; 728 __u8 le_adv_phy; 729 __u8 le_adv_sec_phy; 730 __u8 le_tx_phy; 731 __u8 le_rx_phy; 732 __s8 rssi; 733 __s8 tx_power; 734 __s8 max_tx_power; 735 struct bt_iso_qos iso_qos; 736 __u8 num_bis; 737 __u8 bis[HCI_MAX_ISO_BIS]; 738 739 unsigned long flags; 740 741 enum conn_reasons conn_reason; 742 __u8 abort_reason; 743 744 __u32 clock; 745 __u16 clock_accuracy; 746 747 unsigned long conn_info_timestamp; 748 749 __u8 remote_cap; 750 __u8 remote_auth; 751 __u8 remote_id; 752 753 unsigned int sent; 754 755 struct sk_buff_head data_q; 756 struct list_head chan_list; 757 758 struct tx_queue tx_q; 759 760 struct delayed_work disc_work; 761 struct delayed_work auto_accept_work; 762 struct delayed_work idle_work; 763 struct delayed_work le_conn_timeout; 764 765 struct device dev; 766 struct dentry *debugfs; 767 768 struct hci_dev *hdev; 769 void *l2cap_data; 770 void *sco_data; 771 void *iso_data; 772 773 struct list_head link_list; 774 struct hci_conn *parent; 775 struct hci_link *link; 776 777 struct bt_codec codec; 778 779 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 780 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 781 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 782 783 void (*cleanup)(struct hci_conn *conn); 784 }; 785 786 struct hci_link { 787 struct list_head list; 788 struct hci_conn *conn; 789 }; 790 791 struct hci_chan { 792 struct list_head list; 793 __u16 handle; 794 struct hci_conn *conn; 795 struct sk_buff_head data_q; 796 unsigned int sent; 797 __u8 state; 798 }; 799 800 struct hci_conn_params { 801 struct list_head list; 802 struct list_head action; 803 804 bdaddr_t addr; 805 u8 addr_type; 806 807 u16 conn_min_interval; 808 u16 conn_max_interval; 809 u16 conn_latency; 810 u16 supervision_timeout; 811 812 enum { 813 HCI_AUTO_CONN_DISABLED, 814 HCI_AUTO_CONN_REPORT, 815 HCI_AUTO_CONN_DIRECT, 816 HCI_AUTO_CONN_ALWAYS, 817 HCI_AUTO_CONN_LINK_LOSS, 818 HCI_AUTO_CONN_EXPLICIT, 819 } auto_connect; 820 821 struct hci_conn *conn; 822 bool explicit_connect; 823 /* Accessed without hdev->lock: */ 824 hci_conn_flags_t flags; 825 u8 privacy_mode; 826 }; 827 828 extern struct list_head hci_dev_list; 829 extern struct list_head hci_cb_list; 830 extern rwlock_t hci_dev_list_lock; 831 extern struct mutex hci_cb_list_lock; 832 833 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 834 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 835 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 836 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 837 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 838 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 839 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 840 841 #define hci_dev_clear_volatile_flags(hdev) \ 842 do { \ 843 hci_dev_clear_flag((hdev), HCI_LE_SCAN); \ 844 hci_dev_clear_flag((hdev), HCI_LE_ADV); \ 845 hci_dev_clear_flag((hdev), HCI_LL_RPA_RESOLUTION); \ 846 hci_dev_clear_flag((hdev), HCI_PERIODIC_INQ); \ 847 hci_dev_clear_flag((hdev), HCI_QUALITY_REPORT); \ 848 } while (0) 849 850 #define hci_dev_le_state_simultaneous(hdev) \ 851 (!hci_test_quirk((hdev), HCI_QUIRK_BROKEN_LE_STATES) && \ 852 ((hdev)->le_states[4] & 0x08) && /* Central */ \ 853 ((hdev)->le_states[4] & 0x40) && /* Peripheral */ \ 854 ((hdev)->le_states[3] & 0x10)) /* Simultaneous */ 855 856 /* ----- HCI interface to upper protocols ----- */ 857 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 858 int l2cap_disconn_ind(struct hci_conn *hcon); 859 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 860 861 #if IS_ENABLED(CONFIG_BT_BREDR) 862 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 863 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 864 #else 865 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 866 __u8 *flags) 867 { 868 return 0; 869 } 870 871 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 872 { 873 } 874 #endif 875 876 #if IS_ENABLED(CONFIG_BT_LE) 877 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 878 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 879 #else 880 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 881 __u8 *flags) 882 { 883 return 0; 884 } 885 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, 886 u16 flags) 887 { 888 } 889 #endif 890 891 /* ----- Inquiry cache ----- */ 892 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 893 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 894 895 static inline void discovery_init(struct hci_dev *hdev) 896 { 897 spin_lock_init(&hdev->discovery.lock); 898 hdev->discovery.state = DISCOVERY_STOPPED; 899 INIT_LIST_HEAD(&hdev->discovery.all); 900 INIT_LIST_HEAD(&hdev->discovery.unknown); 901 INIT_LIST_HEAD(&hdev->discovery.resolve); 902 hdev->discovery.report_invalid_rssi = true; 903 hdev->discovery.rssi = HCI_RSSI_INVALID; 904 } 905 906 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 907 { 908 hdev->discovery.result_filtering = false; 909 hdev->discovery.report_invalid_rssi = true; 910 hdev->discovery.rssi = HCI_RSSI_INVALID; 911 hdev->discovery.uuid_count = 0; 912 913 spin_lock(&hdev->discovery.lock); 914 kfree(hdev->discovery.uuids); 915 hdev->discovery.uuids = NULL; 916 spin_unlock(&hdev->discovery.lock); 917 } 918 919 bool hci_discovery_active(struct hci_dev *hdev); 920 921 void hci_discovery_set_state(struct hci_dev *hdev, int state); 922 923 static inline int inquiry_cache_empty(struct hci_dev *hdev) 924 { 925 return list_empty(&hdev->discovery.all); 926 } 927 928 static inline long inquiry_cache_age(struct hci_dev *hdev) 929 { 930 struct discovery_state *c = &hdev->discovery; 931 return jiffies - c->timestamp; 932 } 933 934 static inline long inquiry_entry_age(struct inquiry_entry *e) 935 { 936 return jiffies - e->timestamp; 937 } 938 939 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 940 bdaddr_t *bdaddr); 941 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 942 bdaddr_t *bdaddr); 943 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 944 bdaddr_t *bdaddr, 945 int state); 946 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 947 struct inquiry_entry *ie); 948 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 949 bool name_known); 950 void hci_inquiry_cache_flush(struct hci_dev *hdev); 951 952 /* ----- HCI Connections ----- */ 953 enum { 954 HCI_CONN_AUTH_PEND, 955 HCI_CONN_ENCRYPT_PEND, 956 HCI_CONN_RSWITCH_PEND, 957 HCI_CONN_MODE_CHANGE_PEND, 958 HCI_CONN_SCO_SETUP_PEND, 959 HCI_CONN_MGMT_CONNECTED, 960 HCI_CONN_SSP_ENABLED, 961 HCI_CONN_SC_ENABLED, 962 HCI_CONN_AES_CCM, 963 HCI_CONN_POWER_SAVE, 964 HCI_CONN_FLUSH_KEY, 965 HCI_CONN_ENCRYPT, 966 HCI_CONN_AUTH, 967 HCI_CONN_SECURE, 968 HCI_CONN_FIPS, 969 HCI_CONN_STK_ENCRYPT, 970 HCI_CONN_AUTH_INITIATOR, 971 HCI_CONN_DROP, 972 HCI_CONN_CANCEL, 973 HCI_CONN_PARAM_REMOVAL_PEND, 974 HCI_CONN_NEW_LINK_KEY, 975 HCI_CONN_SCANNING, 976 HCI_CONN_AUTH_FAILURE, 977 HCI_CONN_PER_ADV, 978 HCI_CONN_BIG_CREATED, 979 HCI_CONN_CREATE_CIS, 980 HCI_CONN_CREATE_BIG_SYNC, 981 HCI_CONN_BIG_SYNC, 982 HCI_CONN_BIG_SYNC_FAILED, 983 HCI_CONN_CREATE_PA_SYNC, 984 HCI_CONN_PA_SYNC, 985 HCI_CONN_PA_SYNC_FAILED, 986 }; 987 988 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 989 { 990 struct hci_dev *hdev = conn->hdev; 991 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 992 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 993 } 994 995 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 996 { 997 struct hci_dev *hdev = conn->hdev; 998 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 999 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 1000 } 1001 1002 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 1003 { 1004 struct hci_conn_hash *h = &hdev->conn_hash; 1005 list_add_tail_rcu(&c->list, &h->list); 1006 switch (c->type) { 1007 case ACL_LINK: 1008 h->acl_num++; 1009 break; 1010 case LE_LINK: 1011 h->le_num++; 1012 if (c->role == HCI_ROLE_SLAVE) 1013 h->le_num_peripheral++; 1014 break; 1015 case SCO_LINK: 1016 case ESCO_LINK: 1017 h->sco_num++; 1018 break; 1019 case CIS_LINK: 1020 h->cis_num++; 1021 break; 1022 case BIS_LINK: 1023 h->bis_num++; 1024 break; 1025 case PA_LINK: 1026 h->pa_num++; 1027 break; 1028 } 1029 } 1030 1031 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 1032 { 1033 struct hci_conn_hash *h = &hdev->conn_hash; 1034 1035 list_del_rcu(&c->list); 1036 synchronize_rcu(); 1037 1038 switch (c->type) { 1039 case ACL_LINK: 1040 h->acl_num--; 1041 break; 1042 case LE_LINK: 1043 h->le_num--; 1044 if (c->role == HCI_ROLE_SLAVE) 1045 h->le_num_peripheral--; 1046 break; 1047 case SCO_LINK: 1048 case ESCO_LINK: 1049 h->sco_num--; 1050 break; 1051 case CIS_LINK: 1052 h->cis_num--; 1053 break; 1054 case BIS_LINK: 1055 h->bis_num--; 1056 break; 1057 case PA_LINK: 1058 h->pa_num--; 1059 break; 1060 } 1061 } 1062 1063 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 1064 { 1065 struct hci_conn_hash *h = &hdev->conn_hash; 1066 switch (type) { 1067 case ACL_LINK: 1068 return h->acl_num; 1069 case LE_LINK: 1070 return h->le_num; 1071 case SCO_LINK: 1072 case ESCO_LINK: 1073 return h->sco_num; 1074 case CIS_LINK: 1075 return h->cis_num; 1076 case BIS_LINK: 1077 return h->bis_num; 1078 case PA_LINK: 1079 return h->pa_num; 1080 default: 1081 return 0; 1082 } 1083 } 1084 1085 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 1086 { 1087 struct hci_conn_hash *c = &hdev->conn_hash; 1088 1089 return c->acl_num + c->sco_num + c->le_num + c->cis_num + c->bis_num + 1090 c->pa_num; 1091 } 1092 1093 static inline unsigned int hci_iso_count(struct hci_dev *hdev) 1094 { 1095 struct hci_conn_hash *c = &hdev->conn_hash; 1096 1097 return c->cis_num + c->bis_num; 1098 } 1099 1100 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) 1101 { 1102 struct hci_conn_hash *h = &hdev->conn_hash; 1103 struct hci_conn *c; 1104 1105 rcu_read_lock(); 1106 1107 list_for_each_entry_rcu(c, &h->list, list) { 1108 if (c == conn) { 1109 rcu_read_unlock(); 1110 return true; 1111 } 1112 } 1113 rcu_read_unlock(); 1114 1115 return false; 1116 } 1117 1118 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 1119 { 1120 struct hci_conn_hash *h = &hdev->conn_hash; 1121 struct hci_conn *c; 1122 __u8 type = INVALID_LINK; 1123 1124 rcu_read_lock(); 1125 1126 list_for_each_entry_rcu(c, &h->list, list) { 1127 if (c->handle == handle) { 1128 type = c->type; 1129 break; 1130 } 1131 } 1132 1133 rcu_read_unlock(); 1134 1135 return type; 1136 } 1137 1138 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, 1139 bdaddr_t *ba, __u8 bis) 1140 { 1141 struct hci_conn_hash *h = &hdev->conn_hash; 1142 struct hci_conn *c; 1143 1144 rcu_read_lock(); 1145 1146 list_for_each_entry_rcu(c, &h->list, list) { 1147 if (bacmp(&c->dst, ba) || c->type != BIS_LINK) 1148 continue; 1149 1150 if (c->iso_qos.bcast.bis == bis) { 1151 rcu_read_unlock(); 1152 return c; 1153 } 1154 } 1155 rcu_read_unlock(); 1156 1157 return NULL; 1158 } 1159 1160 static inline struct hci_conn * 1161 hci_conn_hash_lookup_create_pa_sync(struct hci_dev *hdev) 1162 { 1163 struct hci_conn_hash *h = &hdev->conn_hash; 1164 struct hci_conn *c; 1165 1166 rcu_read_lock(); 1167 1168 list_for_each_entry_rcu(c, &h->list, list) { 1169 if (c->type != PA_LINK) 1170 continue; 1171 1172 if (!test_bit(HCI_CONN_CREATE_PA_SYNC, &c->flags)) 1173 continue; 1174 1175 rcu_read_unlock(); 1176 return c; 1177 } 1178 1179 rcu_read_unlock(); 1180 1181 return NULL; 1182 } 1183 1184 static inline struct hci_conn * 1185 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, 1186 bdaddr_t *ba, 1187 __u8 big, __u8 bis) 1188 { 1189 struct hci_conn_hash *h = &hdev->conn_hash; 1190 struct hci_conn *c; 1191 1192 rcu_read_lock(); 1193 1194 list_for_each_entry_rcu(c, &h->list, list) { 1195 if (bacmp(&c->dst, ba) || c->type != BIS_LINK || 1196 !test_bit(HCI_CONN_PER_ADV, &c->flags)) 1197 continue; 1198 1199 if (c->iso_qos.bcast.big == big && 1200 c->iso_qos.bcast.bis == bis) { 1201 rcu_read_unlock(); 1202 return c; 1203 } 1204 } 1205 rcu_read_unlock(); 1206 1207 return NULL; 1208 } 1209 1210 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1211 __u16 handle) 1212 { 1213 struct hci_conn_hash *h = &hdev->conn_hash; 1214 struct hci_conn *c; 1215 1216 rcu_read_lock(); 1217 1218 list_for_each_entry_rcu(c, &h->list, list) { 1219 if (c->handle == handle) { 1220 rcu_read_unlock(); 1221 return c; 1222 } 1223 } 1224 rcu_read_unlock(); 1225 1226 return NULL; 1227 } 1228 1229 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1230 __u8 type, bdaddr_t *ba) 1231 { 1232 struct hci_conn_hash *h = &hdev->conn_hash; 1233 struct hci_conn *c; 1234 1235 rcu_read_lock(); 1236 1237 list_for_each_entry_rcu(c, &h->list, list) { 1238 if (c->type == type && !bacmp(&c->dst, ba)) { 1239 rcu_read_unlock(); 1240 return c; 1241 } 1242 } 1243 1244 rcu_read_unlock(); 1245 1246 return NULL; 1247 } 1248 1249 static inline struct hci_conn *hci_conn_hash_lookup_role(struct hci_dev *hdev, 1250 __u8 type, __u8 role, 1251 bdaddr_t *ba) 1252 { 1253 struct hci_conn_hash *h = &hdev->conn_hash; 1254 struct hci_conn *c; 1255 1256 rcu_read_lock(); 1257 1258 list_for_each_entry_rcu(c, &h->list, list) { 1259 if (c->type == type && c->role == role && !bacmp(&c->dst, ba)) { 1260 rcu_read_unlock(); 1261 return c; 1262 } 1263 } 1264 1265 rcu_read_unlock(); 1266 1267 return NULL; 1268 } 1269 1270 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1271 bdaddr_t *ba, 1272 __u8 ba_type) 1273 { 1274 struct hci_conn_hash *h = &hdev->conn_hash; 1275 struct hci_conn *c; 1276 1277 rcu_read_lock(); 1278 1279 list_for_each_entry_rcu(c, &h->list, list) { 1280 if (c->type != LE_LINK) 1281 continue; 1282 1283 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1284 rcu_read_unlock(); 1285 return c; 1286 } 1287 } 1288 1289 rcu_read_unlock(); 1290 1291 return NULL; 1292 } 1293 1294 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, 1295 bdaddr_t *ba, 1296 __u8 ba_type, 1297 __u8 cig, 1298 __u8 id) 1299 { 1300 struct hci_conn_hash *h = &hdev->conn_hash; 1301 struct hci_conn *c; 1302 1303 rcu_read_lock(); 1304 1305 list_for_each_entry_rcu(c, &h->list, list) { 1306 if (c->type != CIS_LINK) 1307 continue; 1308 1309 /* Match CIG ID if set */ 1310 if (cig != c->iso_qos.ucast.cig) 1311 continue; 1312 1313 /* Match CIS ID if set */ 1314 if (id != c->iso_qos.ucast.cis) 1315 continue; 1316 1317 /* Match destination address if set */ 1318 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { 1319 rcu_read_unlock(); 1320 return c; 1321 } 1322 } 1323 1324 rcu_read_unlock(); 1325 1326 return NULL; 1327 } 1328 1329 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, 1330 __u8 handle) 1331 { 1332 struct hci_conn_hash *h = &hdev->conn_hash; 1333 struct hci_conn *c; 1334 1335 rcu_read_lock(); 1336 1337 list_for_each_entry_rcu(c, &h->list, list) { 1338 if (c->type != CIS_LINK) 1339 continue; 1340 1341 if (handle == c->iso_qos.ucast.cig) { 1342 rcu_read_unlock(); 1343 return c; 1344 } 1345 } 1346 1347 rcu_read_unlock(); 1348 1349 return NULL; 1350 } 1351 1352 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, 1353 __u8 handle) 1354 { 1355 struct hci_conn_hash *h = &hdev->conn_hash; 1356 struct hci_conn *c; 1357 1358 rcu_read_lock(); 1359 1360 list_for_each_entry_rcu(c, &h->list, list) { 1361 if (c->type != BIS_LINK) 1362 continue; 1363 1364 if (handle == c->iso_qos.bcast.big) { 1365 rcu_read_unlock(); 1366 return c; 1367 } 1368 } 1369 1370 rcu_read_unlock(); 1371 1372 return NULL; 1373 } 1374 1375 static inline struct hci_conn * 1376 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev, 1377 __u8 handle, __u8 num_bis) 1378 { 1379 struct hci_conn_hash *h = &hdev->conn_hash; 1380 struct hci_conn *c; 1381 1382 rcu_read_lock(); 1383 1384 list_for_each_entry_rcu(c, &h->list, list) { 1385 if (c->type != PA_LINK) 1386 continue; 1387 1388 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) { 1389 rcu_read_unlock(); 1390 return c; 1391 } 1392 } 1393 1394 rcu_read_unlock(); 1395 1396 return NULL; 1397 } 1398 1399 static inline struct hci_conn * 1400 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state, 1401 __u8 role) 1402 { 1403 struct hci_conn_hash *h = &hdev->conn_hash; 1404 struct hci_conn *c; 1405 1406 rcu_read_lock(); 1407 1408 list_for_each_entry_rcu(c, &h->list, list) { 1409 if (c->type != BIS_LINK || c->state != state || c->role != role) 1410 continue; 1411 1412 if (handle == c->iso_qos.bcast.big) { 1413 rcu_read_unlock(); 1414 return c; 1415 } 1416 } 1417 1418 rcu_read_unlock(); 1419 1420 return NULL; 1421 } 1422 1423 static inline struct hci_conn * 1424 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) 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 != BIS_LINK || 1433 !test_bit(HCI_CONN_PA_SYNC, &c->flags)) 1434 continue; 1435 1436 if (c->iso_qos.bcast.big == big) { 1437 rcu_read_unlock(); 1438 return c; 1439 } 1440 } 1441 rcu_read_unlock(); 1442 1443 return NULL; 1444 } 1445 1446 static inline struct hci_conn * 1447 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) 1448 { 1449 struct hci_conn_hash *h = &hdev->conn_hash; 1450 struct hci_conn *c; 1451 1452 rcu_read_lock(); 1453 1454 list_for_each_entry_rcu(c, &h->list, list) { 1455 if (c->type != PA_LINK) 1456 continue; 1457 1458 /* Ignore the listen hcon, we are looking 1459 * for the child hcon that was created as 1460 * a result of the PA sync established event. 1461 */ 1462 if (c->state == BT_LISTEN) 1463 continue; 1464 1465 if (c->sync_handle == sync_handle) { 1466 rcu_read_unlock(); 1467 return c; 1468 } 1469 } 1470 rcu_read_unlock(); 1471 1472 return NULL; 1473 } 1474 1475 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); 1476 static inline void hci_conn_hash_list_state(struct hci_dev *hdev, 1477 hci_conn_func_t func, __u8 type, 1478 __u16 state, void *data) 1479 { 1480 struct hci_conn_hash *h = &hdev->conn_hash; 1481 struct hci_conn *c; 1482 1483 if (!func) 1484 return; 1485 1486 rcu_read_lock(); 1487 1488 list_for_each_entry_rcu(c, &h->list, list) { 1489 if (c->type == type && c->state == state) 1490 func(c, data); 1491 } 1492 1493 rcu_read_unlock(); 1494 } 1495 1496 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, 1497 hci_conn_func_t func, __u8 type, 1498 __u8 flag, void *data) 1499 { 1500 struct hci_conn_hash *h = &hdev->conn_hash; 1501 struct hci_conn *c; 1502 1503 if (!func) 1504 return; 1505 1506 rcu_read_lock(); 1507 1508 list_for_each_entry_rcu(c, &h->list, list) { 1509 if (c->type == type && test_bit(flag, &c->flags)) 1510 func(c, data); 1511 } 1512 1513 rcu_read_unlock(); 1514 } 1515 1516 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1517 { 1518 struct hci_conn_hash *h = &hdev->conn_hash; 1519 struct hci_conn *c; 1520 1521 rcu_read_lock(); 1522 1523 list_for_each_entry_rcu(c, &h->list, list) { 1524 if (c->type == LE_LINK && c->state == BT_CONNECT && 1525 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1526 rcu_read_unlock(); 1527 return c; 1528 } 1529 } 1530 1531 rcu_read_unlock(); 1532 1533 return NULL; 1534 } 1535 1536 /* Returns true if an le connection is in the scanning state */ 1537 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) 1538 { 1539 struct hci_conn_hash *h = &hdev->conn_hash; 1540 struct hci_conn *c; 1541 1542 rcu_read_lock(); 1543 1544 list_for_each_entry_rcu(c, &h->list, list) { 1545 if (c->type == LE_LINK && c->state == BT_CONNECT && 1546 test_bit(HCI_CONN_SCANNING, &c->flags)) { 1547 rcu_read_unlock(); 1548 return true; 1549 } 1550 } 1551 1552 rcu_read_unlock(); 1553 1554 return false; 1555 } 1556 1557 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1558 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1559 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1560 bool hci_iso_setup_path(struct hci_conn *conn); 1561 int hci_le_create_cis_pending(struct hci_dev *hdev); 1562 int hci_conn_check_create_cis(struct hci_conn *conn); 1563 1564 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1565 u8 role, u16 handle); 1566 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, 1567 bdaddr_t *dst, u8 role); 1568 void hci_conn_del(struct hci_conn *conn); 1569 void hci_conn_hash_flush(struct hci_dev *hdev); 1570 1571 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1572 void hci_chan_del(struct hci_chan *chan); 1573 void hci_chan_list_flush(struct hci_conn *conn); 1574 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1575 1576 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1577 u8 dst_type, u8 sec_level, 1578 u16 conn_timeout, 1579 enum conn_reasons conn_reason); 1580 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1581 u8 dst_type, bool dst_resolved, u8 sec_level, 1582 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); 1583 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); 1584 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1585 u8 sec_level, u8 auth_type, 1586 enum conn_reasons conn_reason, u16 timeout); 1587 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1588 __u16 setting, struct bt_codec *codec, 1589 u16 timeout); 1590 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, 1591 __u8 dst_type, struct bt_iso_qos *qos, 1592 u16 timeout); 1593 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid, 1594 struct bt_iso_qos *qos, 1595 __u8 base_len, __u8 *base, u16 timeout); 1596 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, 1597 __u8 dst_type, struct bt_iso_qos *qos, 1598 u16 timeout); 1599 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, 1600 __u8 dst_type, __u8 sid, 1601 struct bt_iso_qos *qos, 1602 __u8 data_len, __u8 *data, u16 timeout); 1603 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, 1604 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); 1605 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, 1606 struct bt_iso_qos *qos, __u16 sync_handle, 1607 __u8 num_bis, __u8 bis[]); 1608 int hci_conn_check_link_mode(struct hci_conn *conn); 1609 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1610 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1611 bool initiator); 1612 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1613 1614 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1615 1616 void hci_conn_failed(struct hci_conn *conn, u8 status); 1617 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); 1618 1619 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb); 1620 void hci_conn_tx_dequeue(struct hci_conn *conn); 1621 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset, 1622 const struct sockcm_cookie *sockc); 1623 1624 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk) 1625 { 1626 *sockc = (struct sockcm_cookie) { 1627 .tsflags = READ_ONCE(sk->sk_tsflags), 1628 }; 1629 } 1630 1631 /* 1632 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1633 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1634 * working or anything else. They just guarantee that the object is available 1635 * and can be dereferenced. So you can use its locks, local variables and any 1636 * other constant data. 1637 * Before accessing runtime data, you _must_ lock the object and then check that 1638 * it is still running. As soon as you release the locks, the connection might 1639 * get dropped, though. 1640 * 1641 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1642 * how long the underlying connection is held. So every channel that runs on the 1643 * hci_conn object calls this to prevent the connection from disappearing. As 1644 * long as you hold a device, you must also guarantee that you have a valid 1645 * reference to the device via hci_conn_get() (or the initial reference from 1646 * hci_conn_add()). 1647 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1648 * break because nobody cares for that. But this means, we cannot use 1649 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1650 */ 1651 1652 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1653 { 1654 get_device(&conn->dev); 1655 return conn; 1656 } 1657 1658 static inline void hci_conn_put(struct hci_conn *conn) 1659 { 1660 put_device(&conn->dev); 1661 } 1662 1663 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) 1664 { 1665 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1666 1667 atomic_inc(&conn->refcnt); 1668 cancel_delayed_work(&conn->disc_work); 1669 1670 return conn; 1671 } 1672 1673 static inline void hci_conn_drop(struct hci_conn *conn) 1674 { 1675 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1676 1677 if (atomic_dec_and_test(&conn->refcnt)) { 1678 unsigned long timeo; 1679 1680 switch (conn->type) { 1681 case ACL_LINK: 1682 case LE_LINK: 1683 cancel_delayed_work(&conn->idle_work); 1684 if (conn->state == BT_CONNECTED) { 1685 timeo = conn->disc_timeout; 1686 if (!conn->out) 1687 timeo *= 2; 1688 } else { 1689 timeo = 0; 1690 } 1691 break; 1692 1693 default: 1694 timeo = 0; 1695 break; 1696 } 1697 1698 cancel_delayed_work(&conn->disc_work); 1699 queue_delayed_work(conn->hdev->workqueue, 1700 &conn->disc_work, timeo); 1701 } 1702 } 1703 1704 /* ----- HCI Devices ----- */ 1705 static inline void hci_dev_put(struct hci_dev *d) 1706 { 1707 BT_DBG("%s orig refcnt %d", d->name, 1708 kref_read(&d->dev.kobj.kref)); 1709 1710 put_device(&d->dev); 1711 } 1712 1713 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1714 { 1715 BT_DBG("%s orig refcnt %d", d->name, 1716 kref_read(&d->dev.kobj.kref)); 1717 1718 get_device(&d->dev); 1719 return d; 1720 } 1721 1722 #define hci_dev_lock(d) mutex_lock(&d->lock) 1723 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1724 1725 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1726 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1727 1728 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1729 { 1730 return dev_get_drvdata(&hdev->dev); 1731 } 1732 1733 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1734 { 1735 dev_set_drvdata(&hdev->dev, data); 1736 } 1737 1738 static inline void *hci_get_priv(struct hci_dev *hdev) 1739 { 1740 return (char *)hdev + sizeof(*hdev); 1741 } 1742 1743 struct hci_dev *hci_dev_get(int index); 1744 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1745 1746 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1747 1748 static inline struct hci_dev *hci_alloc_dev(void) 1749 { 1750 return hci_alloc_dev_priv(0); 1751 } 1752 1753 void hci_free_dev(struct hci_dev *hdev); 1754 int hci_register_dev(struct hci_dev *hdev); 1755 void hci_unregister_dev(struct hci_dev *hdev); 1756 void hci_release_dev(struct hci_dev *hdev); 1757 int hci_register_suspend_notifier(struct hci_dev *hdev); 1758 int hci_unregister_suspend_notifier(struct hci_dev *hdev); 1759 int hci_suspend_dev(struct hci_dev *hdev); 1760 int hci_resume_dev(struct hci_dev *hdev); 1761 int hci_reset_dev(struct hci_dev *hdev); 1762 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1763 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1764 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1765 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1766 1767 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1768 { 1769 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1770 hdev->msft_opcode = opcode; 1771 #endif 1772 } 1773 1774 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1775 { 1776 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1777 hdev->aosp_capable = true; 1778 #endif 1779 } 1780 1781 static inline void hci_devcd_setup(struct hci_dev *hdev) 1782 { 1783 #ifdef CONFIG_DEV_COREDUMP 1784 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); 1785 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); 1786 skb_queue_head_init(&hdev->dump.dump_q); 1787 #endif 1788 } 1789 1790 int hci_dev_open(__u16 dev); 1791 int hci_dev_close(__u16 dev); 1792 int hci_dev_do_close(struct hci_dev *hdev); 1793 int hci_dev_reset(__u16 dev); 1794 int hci_dev_reset_stat(__u16 dev); 1795 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1796 int hci_get_dev_list(void __user *arg); 1797 int hci_get_dev_info(void __user *arg); 1798 int hci_get_conn_list(void __user *arg); 1799 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1800 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1801 int hci_inquiry(void __user *arg); 1802 1803 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1804 bdaddr_t *bdaddr, u8 type); 1805 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1806 struct list_head *list, bdaddr_t *bdaddr, 1807 u8 type); 1808 struct bdaddr_list_with_flags * 1809 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1810 u8 type); 1811 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1812 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1813 u8 type, u8 *peer_irk, u8 *local_irk); 1814 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1815 u8 type, u32 flags); 1816 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1817 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1818 u8 type); 1819 void hci_bdaddr_list_clear(struct list_head *list); 1820 1821 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1822 bdaddr_t *addr, u8 addr_type); 1823 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1824 bdaddr_t *addr, u8 addr_type); 1825 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1826 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1827 void hci_conn_params_free(struct hci_conn_params *param); 1828 1829 void hci_pend_le_list_del_init(struct hci_conn_params *param); 1830 void hci_pend_le_list_add(struct hci_conn_params *param, 1831 struct list_head *list); 1832 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1833 bdaddr_t *addr, 1834 u8 addr_type); 1835 1836 void hci_uuids_clear(struct hci_dev *hdev); 1837 1838 void hci_link_keys_clear(struct hci_dev *hdev); 1839 u8 *hci_conn_key_enc_size(struct hci_conn *conn); 1840 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1841 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1842 bdaddr_t *bdaddr, u8 *val, u8 type, 1843 u8 pin_len, bool *persistent); 1844 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1845 u8 addr_type, u8 type, u8 authenticated, 1846 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1847 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1848 u8 addr_type, u8 role); 1849 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1850 void hci_smp_ltks_clear(struct hci_dev *hdev); 1851 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1852 1853 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1854 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1855 u8 addr_type); 1856 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1857 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1858 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1859 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1860 void hci_blocked_keys_clear(struct hci_dev *hdev); 1861 void hci_smp_irks_clear(struct hci_dev *hdev); 1862 1863 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1864 1865 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1866 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1867 bdaddr_t *bdaddr, u8 bdaddr_type); 1868 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1869 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1870 u8 *hash256, u8 *rand256); 1871 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1872 u8 bdaddr_type); 1873 1874 void hci_adv_instances_clear(struct hci_dev *hdev); 1875 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1876 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid); 1877 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1878 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, 1879 u32 flags, u16 adv_data_len, u8 *adv_data, 1880 u16 scan_rsp_len, u8 *scan_rsp_data, 1881 u16 timeout, u16 duration, s8 tx_power, 1882 u32 min_interval, u32 max_interval, 1883 u8 mesh_handle); 1884 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid, 1885 u32 flags, u8 data_len, u8 *data, 1886 u32 min_interval, u32 max_interval); 1887 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1888 u16 adv_data_len, u8 *adv_data, 1889 u16 scan_rsp_len, u8 *scan_rsp_data); 1890 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1891 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1892 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1893 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1894 1895 void hci_adv_monitors_clear(struct hci_dev *hdev); 1896 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1897 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1898 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); 1899 int hci_remove_all_adv_monitor(struct hci_dev *hdev); 1900 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1901 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1902 1903 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1904 1905 void hci_init_sysfs(struct hci_dev *hdev); 1906 void hci_conn_init_sysfs(struct hci_conn *conn); 1907 void hci_conn_add_sysfs(struct hci_conn *conn); 1908 void hci_conn_del_sysfs(struct hci_conn *conn); 1909 1910 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1911 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) 1912 1913 /* ----- LMP capabilities ----- */ 1914 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1915 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1916 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1917 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1918 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1919 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO) 1920 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1921 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1922 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1923 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1924 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1925 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1926 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1927 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1928 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1929 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1930 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1931 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1932 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1933 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1934 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1935 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1936 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1937 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1938 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1939 1940 /* ----- Extended LMP capabilities ----- */ 1941 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1942 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1943 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1944 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1945 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1946 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1947 1948 /* ----- Host capabilities ----- */ 1949 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1950 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1951 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1952 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1953 1954 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1955 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1956 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1957 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1958 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1959 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1960 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1961 !adv->rpa_expired) 1962 #define le_enabled(dev) (lmp_le_capable(dev) && \ 1963 hci_dev_test_flag(dev, HCI_LE_ENABLED)) 1964 1965 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1966 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1967 1968 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) 1969 1970 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1971 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1972 1973 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ 1974 !hci_test_quirk((dev), \ 1975 HCI_QUIRK_BROKEN_LE_CODED)) 1976 1977 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1978 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1979 1980 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1981 #define ll_privacy_enabled(dev) (le_enabled(dev) && ll_privacy_capable(dev)) 1982 1983 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \ 1984 ((dev)->commands[39] & 0x04)) 1985 1986 #define read_key_size_capable(dev) \ 1987 ((dev)->commands[20] & 0x10 && \ 1988 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE)) 1989 1990 #define read_voice_setting_capable(dev) \ 1991 ((dev)->commands[9] & 0x04 && \ 1992 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_VOICE_SETTING)) 1993 1994 /* Use enhanced synchronous connection if command is supported and its quirk 1995 * has not been set. 1996 */ 1997 #define enhanced_sync_conn_capable(dev) \ 1998 (((dev)->commands[29] & 0x08) && \ 1999 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN)) 2000 2001 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 2002 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 2003 ((dev)->commands[37] & 0x40) && \ 2004 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_SCAN)) 2005 2006 /* Use ext create connection if command is supported */ 2007 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \ 2008 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2009 /* Extended advertising support */ 2010 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 2011 2012 /* Maximum advertising length */ 2013 #define max_adv_len(dev) \ 2014 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) 2015 2016 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 2017 * 2018 * C24: Mandatory if the LE Controller supports Connection State and either 2019 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 2020 */ 2021 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \ 2022 ext_adv_capable(dev)) && \ 2023 !hci_test_quirk((dev), \ 2024 HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2025 2026 /* Periodic advertising support */ 2027 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) 2028 2029 /* CIS Master/Slave and BIS support */ 2030 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) 2031 #define iso_enabled(dev) (le_enabled(dev) && iso_capable(dev)) 2032 #define cis_capable(dev) \ 2033 (cis_central_capable(dev) || cis_peripheral_capable(dev)) 2034 #define cis_enabled(dev) (le_enabled(dev) && cis_capable(dev)) 2035 #define cis_central_capable(dev) \ 2036 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) 2037 #define cis_central_enabled(dev) \ 2038 (le_enabled(dev) && cis_central_capable(dev)) 2039 #define cis_peripheral_capable(dev) \ 2040 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) 2041 #define cis_peripheral_enabled(dev) \ 2042 (le_enabled(dev) && cis_peripheral_capable(dev)) 2043 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) 2044 #define bis_enabled(dev) (le_enabled(dev) && bis_capable(dev)) 2045 #define sync_recv_capable(dev) \ 2046 ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) 2047 #define sync_recv_enabled(dev) (le_enabled(dev) && sync_recv_capable(dev)) 2048 2049 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ 2050 (!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG))) 2051 2052 /* ----- HCI protocols ----- */ 2053 #define HCI_PROTO_DEFER 0x01 2054 2055 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 2056 __u8 type, __u8 *flags) 2057 { 2058 switch (type) { 2059 case ACL_LINK: 2060 return l2cap_connect_ind(hdev, bdaddr); 2061 2062 case SCO_LINK: 2063 case ESCO_LINK: 2064 return sco_connect_ind(hdev, bdaddr, flags); 2065 2066 case CIS_LINK: 2067 case BIS_LINK: 2068 case PA_LINK: 2069 return iso_connect_ind(hdev, bdaddr, flags); 2070 2071 default: 2072 BT_ERR("unknown link type %d", type); 2073 return -EINVAL; 2074 } 2075 } 2076 2077 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 2078 { 2079 if (conn->type != ACL_LINK && conn->type != LE_LINK) 2080 return HCI_ERROR_REMOTE_USER_TERM; 2081 2082 return l2cap_disconn_ind(conn); 2083 } 2084 2085 /* ----- HCI callbacks ----- */ 2086 struct hci_cb { 2087 struct list_head list; 2088 2089 char *name; 2090 2091 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 2092 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 2093 void (*security_cfm) (struct hci_conn *conn, __u8 status, 2094 __u8 encrypt); 2095 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 2096 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 2097 }; 2098 2099 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 2100 { 2101 struct hci_cb *cb; 2102 2103 mutex_lock(&hci_cb_list_lock); 2104 list_for_each_entry(cb, &hci_cb_list, list) { 2105 if (cb->connect_cfm) 2106 cb->connect_cfm(conn, status); 2107 } 2108 mutex_unlock(&hci_cb_list_lock); 2109 2110 if (conn->connect_cfm_cb) 2111 conn->connect_cfm_cb(conn, status); 2112 } 2113 2114 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 2115 { 2116 struct hci_cb *cb; 2117 2118 mutex_lock(&hci_cb_list_lock); 2119 list_for_each_entry(cb, &hci_cb_list, list) { 2120 if (cb->disconn_cfm) 2121 cb->disconn_cfm(conn, reason); 2122 } 2123 mutex_unlock(&hci_cb_list_lock); 2124 2125 if (conn->disconn_cfm_cb) 2126 conn->disconn_cfm_cb(conn, reason); 2127 } 2128 2129 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 2130 { 2131 struct hci_cb *cb; 2132 __u8 encrypt; 2133 2134 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 2135 return; 2136 2137 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 2138 2139 mutex_lock(&hci_cb_list_lock); 2140 list_for_each_entry(cb, &hci_cb_list, list) { 2141 if (cb->security_cfm) 2142 cb->security_cfm(conn, status, encrypt); 2143 } 2144 mutex_unlock(&hci_cb_list_lock); 2145 2146 if (conn->security_cfm_cb) 2147 conn->security_cfm_cb(conn, status); 2148 } 2149 2150 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 2151 { 2152 struct hci_cb *cb; 2153 __u8 encrypt; 2154 2155 if (conn->state == BT_CONFIG) { 2156 if (!status) 2157 conn->state = BT_CONNECTED; 2158 2159 hci_connect_cfm(conn, status); 2160 hci_conn_drop(conn); 2161 return; 2162 } 2163 2164 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 2165 encrypt = 0x00; 2166 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 2167 encrypt = 0x02; 2168 else 2169 encrypt = 0x01; 2170 2171 if (!status) { 2172 if (conn->sec_level == BT_SECURITY_SDP) 2173 conn->sec_level = BT_SECURITY_LOW; 2174 2175 if (conn->pending_sec_level > conn->sec_level) 2176 conn->sec_level = conn->pending_sec_level; 2177 } 2178 2179 mutex_lock(&hci_cb_list_lock); 2180 list_for_each_entry(cb, &hci_cb_list, list) { 2181 if (cb->security_cfm) 2182 cb->security_cfm(conn, status, encrypt); 2183 } 2184 mutex_unlock(&hci_cb_list_lock); 2185 2186 if (conn->security_cfm_cb) 2187 conn->security_cfm_cb(conn, status); 2188 } 2189 2190 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 2191 { 2192 struct hci_cb *cb; 2193 2194 mutex_lock(&hci_cb_list_lock); 2195 list_for_each_entry(cb, &hci_cb_list, list) { 2196 if (cb->key_change_cfm) 2197 cb->key_change_cfm(conn, status); 2198 } 2199 mutex_unlock(&hci_cb_list_lock); 2200 } 2201 2202 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 2203 __u8 role) 2204 { 2205 struct hci_cb *cb; 2206 2207 mutex_lock(&hci_cb_list_lock); 2208 list_for_each_entry(cb, &hci_cb_list, list) { 2209 if (cb->role_switch_cfm) 2210 cb->role_switch_cfm(conn, status, role); 2211 } 2212 mutex_unlock(&hci_cb_list_lock); 2213 } 2214 2215 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 2216 { 2217 if (addr_type != ADDR_LE_DEV_RANDOM) 2218 return false; 2219 2220 if ((bdaddr->b[5] & 0xc0) == 0x40) 2221 return true; 2222 2223 return false; 2224 } 2225 2226 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 2227 { 2228 if (addr_type == ADDR_LE_DEV_PUBLIC) 2229 return true; 2230 2231 /* Check for Random Static address type */ 2232 if ((addr->b[5] & 0xc0) == 0xc0) 2233 return true; 2234 2235 return false; 2236 } 2237 2238 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 2239 bdaddr_t *bdaddr, u8 addr_type) 2240 { 2241 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 2242 return NULL; 2243 2244 return hci_find_irk_by_rpa(hdev, bdaddr); 2245 } 2246 2247 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 2248 u16 to_multiplier) 2249 { 2250 u16 max_latency; 2251 2252 if (min > max) { 2253 BT_WARN("min %d > max %d", min, max); 2254 return -EINVAL; 2255 } 2256 2257 if (min < 6) { 2258 BT_WARN("min %d < 6", min); 2259 return -EINVAL; 2260 } 2261 2262 if (max > 3200) { 2263 BT_WARN("max %d > 3200", max); 2264 return -EINVAL; 2265 } 2266 2267 if (to_multiplier < 10) { 2268 BT_WARN("to_multiplier %d < 10", to_multiplier); 2269 return -EINVAL; 2270 } 2271 2272 if (to_multiplier > 3200) { 2273 BT_WARN("to_multiplier %d > 3200", to_multiplier); 2274 return -EINVAL; 2275 } 2276 2277 if (max >= to_multiplier * 8) { 2278 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); 2279 return -EINVAL; 2280 } 2281 2282 max_latency = (to_multiplier * 4 / max) - 1; 2283 if (latency > 499) { 2284 BT_WARN("latency %d > 499", latency); 2285 return -EINVAL; 2286 } 2287 2288 if (latency > max_latency) { 2289 BT_WARN("latency %d > max_latency %d", latency, max_latency); 2290 return -EINVAL; 2291 } 2292 2293 return 0; 2294 } 2295 2296 int hci_register_cb(struct hci_cb *hcb); 2297 int hci_unregister_cb(struct hci_cb *hcb); 2298 2299 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 2300 const void *param); 2301 2302 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 2303 const void *param); 2304 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 2305 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 2306 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); 2307 2308 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 2309 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); 2310 2311 u32 hci_conn_get_phy(struct hci_conn *conn); 2312 2313 /* ----- HCI Sockets ----- */ 2314 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 2315 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 2316 int flag, struct sock *skip_sk); 2317 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 2318 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 2319 void *data, u16 data_len, ktime_t tstamp, 2320 int flag, struct sock *skip_sk); 2321 2322 void hci_sock_dev_event(struct hci_dev *hdev, int event); 2323 2324 #define HCI_MGMT_VAR_LEN BIT(0) 2325 #define HCI_MGMT_NO_HDEV BIT(1) 2326 #define HCI_MGMT_UNTRUSTED BIT(2) 2327 #define HCI_MGMT_UNCONFIGURED BIT(3) 2328 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 2329 2330 struct hci_mgmt_handler { 2331 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2332 u16 data_len); 2333 size_t data_len; 2334 unsigned long flags; 2335 }; 2336 2337 struct hci_mgmt_chan { 2338 struct list_head list; 2339 unsigned short channel; 2340 size_t handler_count; 2341 const struct hci_mgmt_handler *handlers; 2342 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 2343 }; 2344 2345 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 2346 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 2347 2348 /* Management interface */ 2349 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 2350 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 2351 BIT(BDADDR_LE_RANDOM)) 2352 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 2353 BIT(BDADDR_LE_PUBLIC) | \ 2354 BIT(BDADDR_LE_RANDOM)) 2355 2356 /* These LE scan and inquiry parameters were chosen according to LE General 2357 * Discovery Procedure specification. 2358 */ 2359 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ 2360 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ 2361 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ 2362 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ 2363 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ 2364 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ 2365 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ 2366 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ 2367 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ 2368 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ 2369 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ 2370 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ 2371 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ 2372 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ 2373 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ 2374 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ 2375 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 2376 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 2377 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 2378 #define DISCOV_BREDR_INQUIRY_LEN 0x08 2379 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 2380 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 2381 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 2382 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ 2383 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ 2384 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ 2385 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ 2386 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) 2387 2388 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 2389 2390 void mgmt_fill_version_info(void *ver); 2391 int mgmt_new_settings(struct hci_dev *hdev); 2392 void mgmt_index_added(struct hci_dev *hdev); 2393 void mgmt_index_removed(struct hci_dev *hdev); 2394 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 2395 void mgmt_power_on(struct hci_dev *hdev, int err); 2396 void __mgmt_power_off(struct hci_dev *hdev); 2397 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 2398 bool persistent); 2399 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 2400 u8 *name, u8 name_len); 2401 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 2402 u8 link_type, u8 addr_type, u8 reason, 2403 bool mgmt_connected); 2404 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 2405 u8 link_type, u8 addr_type, u8 status); 2406 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, 2407 u8 status); 2408 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 2409 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2410 u8 status); 2411 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2412 u8 status); 2413 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2414 u8 link_type, u8 addr_type, u32 value, 2415 u8 confirm_hint); 2416 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2417 u8 link_type, u8 addr_type, u8 status); 2418 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2419 u8 link_type, u8 addr_type, u8 status); 2420 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2421 u8 link_type, u8 addr_type); 2422 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2423 u8 link_type, u8 addr_type, u8 status); 2424 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2425 u8 link_type, u8 addr_type, u8 status); 2426 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 2427 u8 link_type, u8 addr_type, u32 passkey, 2428 u8 entered); 2429 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 2430 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 2431 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 2432 u8 status); 2433 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 2434 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2435 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 2436 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, 2437 u64 instant); 2438 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2439 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 2440 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 2441 void mgmt_suspending(struct hci_dev *hdev, u8 state); 2442 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 2443 u8 addr_type); 2444 bool mgmt_powering_down(struct hci_dev *hdev); 2445 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 2446 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 2447 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 2448 bool persistent); 2449 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 2450 u8 bdaddr_type, u8 store_hint, u16 min_interval, 2451 u16 max_interval, u16 latency, u16 timeout); 2452 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 2453 bool mgmt_get_connectable(struct hci_dev *hdev); 2454 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 2455 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 2456 u8 instance); 2457 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 2458 u8 instance); 2459 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 2460 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, 2461 bdaddr_t *bdaddr, u8 addr_type); 2462 2463 int hci_abort_conn(struct hci_conn *conn, u8 reason); 2464 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 2465 u16 to_multiplier); 2466 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 2467 __u8 ltk[16], __u8 key_size); 2468 2469 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 2470 u8 *bdaddr_type); 2471 2472 #define SCO_AIRMODE_MASK 0x0003 2473 #define SCO_AIRMODE_CVSD 0x0000 2474 #define SCO_AIRMODE_TRANSP 0x0003 2475 2476 #define LOCAL_CODEC_ACL_MASK BIT(0) 2477 #define LOCAL_CODEC_SCO_MASK BIT(1) 2478 2479 #define TRANSPORT_TYPE_MAX 0x04 2480 2481 #endif /* __HCI_CORE_H */ 2482