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 HCI_CONN_FLAG_PAST = BIT(3), 170 }; 171 typedef u8 hci_conn_flags_t; 172 173 struct bdaddr_list_with_flags { 174 struct list_head list; 175 bdaddr_t bdaddr; 176 u8 bdaddr_type; 177 hci_conn_flags_t flags; 178 }; 179 180 struct bt_uuid { 181 struct list_head list; 182 u8 uuid[16]; 183 u8 size; 184 u8 svc_hint; 185 }; 186 187 struct blocked_key { 188 struct list_head list; 189 struct rcu_head rcu; 190 u8 type; 191 u8 val[16]; 192 }; 193 194 struct smp_csrk { 195 bdaddr_t bdaddr; 196 u8 bdaddr_type; 197 u8 type; 198 u8 val[16]; 199 }; 200 201 struct smp_ltk { 202 struct list_head list; 203 struct rcu_head rcu; 204 bdaddr_t bdaddr; 205 u8 bdaddr_type; 206 u8 authenticated; 207 u8 type; 208 u8 enc_size; 209 __le16 ediv; 210 __le64 rand; 211 u8 val[16]; 212 }; 213 214 struct smp_irk { 215 struct list_head list; 216 struct rcu_head rcu; 217 bdaddr_t rpa; 218 bdaddr_t bdaddr; 219 u8 addr_type; 220 u8 val[16]; 221 }; 222 223 struct link_key { 224 struct list_head list; 225 struct rcu_head rcu; 226 bdaddr_t bdaddr; 227 u8 type; 228 u8 val[HCI_LINK_KEY_SIZE]; 229 u8 pin_len; 230 }; 231 232 struct oob_data { 233 struct list_head list; 234 bdaddr_t bdaddr; 235 u8 bdaddr_type; 236 u8 present; 237 u8 hash192[16]; 238 u8 rand192[16]; 239 u8 hash256[16]; 240 u8 rand256[16]; 241 }; 242 243 struct adv_info { 244 struct list_head list; 245 bool enabled; 246 bool pending; 247 bool periodic; 248 bool periodic_enabled; 249 __u8 mesh; 250 __u8 instance; 251 __u8 handle; 252 __u8 sid; 253 __u32 flags; 254 __u16 timeout; 255 __u16 remaining_time; 256 __u16 duration; 257 __u16 adv_data_len; 258 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 259 bool adv_data_changed; 260 __u16 scan_rsp_len; 261 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 262 bool scan_rsp_changed; 263 __u16 per_adv_data_len; 264 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 265 __s8 tx_power; 266 __u32 min_interval; 267 __u32 max_interval; 268 bdaddr_t random_addr; 269 bool rpa_expired; 270 struct delayed_work rpa_expired_cb; 271 }; 272 273 struct tx_queue { 274 struct sk_buff_head queue; 275 unsigned int extra; 276 unsigned int tracked; 277 }; 278 279 #define HCI_MAX_ADV_INSTANCES 5 280 #define HCI_DEFAULT_ADV_DURATION 2 281 282 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 283 284 #define DATA_CMP(_d1, _l1, _d2, _l2) \ 285 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) 286 287 #define ADV_DATA_CMP(_adv, _data, _len) \ 288 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) 289 290 #define SCAN_RSP_CMP(_adv, _data, _len) \ 291 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) 292 293 struct monitored_device { 294 struct list_head list; 295 296 bdaddr_t bdaddr; 297 __u8 addr_type; 298 __u16 handle; 299 bool notified; 300 }; 301 302 struct adv_pattern { 303 struct list_head list; 304 __u8 ad_type; 305 __u8 offset; 306 __u8 length; 307 __u8 value[HCI_MAX_EXT_AD_LENGTH]; 308 }; 309 310 struct adv_rssi_thresholds { 311 __s8 low_threshold; 312 __s8 high_threshold; 313 __u16 low_threshold_timeout; 314 __u16 high_threshold_timeout; 315 __u8 sampling_period; 316 }; 317 318 struct adv_monitor { 319 struct list_head patterns; 320 struct adv_rssi_thresholds rssi; 321 __u16 handle; 322 323 enum { 324 ADV_MONITOR_STATE_NOT_REGISTERED, 325 ADV_MONITOR_STATE_REGISTERED, 326 ADV_MONITOR_STATE_OFFLOADED 327 } state; 328 }; 329 330 #define HCI_MIN_ADV_MONITOR_HANDLE 1 331 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 332 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 333 #define HCI_ADV_MONITOR_EXT_NONE 1 334 #define HCI_ADV_MONITOR_EXT_MSFT 2 335 336 #define HCI_MAX_SHORT_NAME_LENGTH 10 337 338 #define HCI_CONN_HANDLE_MAX 0x0eff 339 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) 340 341 /* Min encryption key size to match with SMP */ 342 #define HCI_MIN_ENC_KEY_SIZE 7 343 344 /* Default LE RPA expiry time, 15 minutes */ 345 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 346 347 /* Default min/max age of connection information (1s/3s) */ 348 #define DEFAULT_CONN_INFO_MIN_AGE 1000 349 #define DEFAULT_CONN_INFO_MAX_AGE 3000 350 /* Default authenticated payload timeout 30s */ 351 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 352 353 #define HCI_MAX_PAGES 3 354 355 struct hci_dev { 356 struct list_head list; 357 struct srcu_struct srcu; 358 struct mutex lock; 359 360 struct ida unset_handle_ida; 361 362 const char *name; 363 unsigned long flags; 364 __u16 id; 365 __u8 bus; 366 bdaddr_t bdaddr; 367 bdaddr_t setup_addr; 368 bdaddr_t public_addr; 369 bdaddr_t random_addr; 370 bdaddr_t static_addr; 371 __u8 adv_addr_type; 372 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 373 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 374 __u8 eir[HCI_MAX_EIR_LENGTH]; 375 __u16 appearance; 376 __u8 dev_class[3]; 377 __u8 major_class; 378 __u8 minor_class; 379 __u8 max_page; 380 __u8 features[HCI_MAX_PAGES][8]; 381 __u8 le_features[248]; 382 __u8 le_accept_list_size; 383 __u8 le_resolv_list_size; 384 __u8 le_num_of_adv_sets; 385 __u8 le_states[8]; 386 __u8 mesh_ad_types[16]; 387 __u8 mesh_send_ref; 388 __u8 commands[64]; 389 __u8 hci_ver; 390 __u16 hci_rev; 391 __u8 lmp_ver; 392 __u16 manufacturer; 393 __u16 lmp_subver; 394 __u16 voice_setting; 395 __u8 num_iac; 396 __u16 stored_max_keys; 397 __u16 stored_num_keys; 398 __u8 io_capability; 399 __s8 inq_tx_power; 400 __u8 err_data_reporting; 401 __u16 page_scan_interval; 402 __u16 page_scan_window; 403 __u8 page_scan_type; 404 __u8 le_adv_channel_map; 405 __u16 le_adv_min_interval; 406 __u16 le_adv_max_interval; 407 __u8 le_scan_type; 408 __u16 le_scan_interval; 409 __u16 le_scan_window; 410 __u16 le_scan_int_suspend; 411 __u16 le_scan_window_suspend; 412 __u16 le_scan_int_discovery; 413 __u16 le_scan_window_discovery; 414 __u16 le_scan_int_adv_monitor; 415 __u16 le_scan_window_adv_monitor; 416 __u16 le_scan_int_connect; 417 __u16 le_scan_window_connect; 418 __u16 le_conn_min_interval; 419 __u16 le_conn_max_interval; 420 __u16 le_conn_latency; 421 __u16 le_supv_timeout; 422 __u16 le_def_tx_len; 423 __u16 le_def_tx_time; 424 __u16 le_max_tx_len; 425 __u16 le_max_tx_time; 426 __u16 le_max_rx_len; 427 __u16 le_max_rx_time; 428 __u8 le_max_key_size; 429 __u8 le_min_key_size; 430 __u16 discov_interleaved_timeout; 431 __u16 conn_info_min_age; 432 __u16 conn_info_max_age; 433 __u16 auth_payload_timeout; 434 __u8 min_enc_key_size; 435 __u8 max_enc_key_size; 436 __u8 pairing_opts; 437 __u8 ssp_debug_mode; 438 __u8 hw_error_code; 439 __u32 clock; 440 __u16 advmon_allowlist_duration; 441 __u16 advmon_no_filter_duration; 442 __u8 enable_advmon_interleave_scan; 443 444 __u16 devid_source; 445 __u16 devid_vendor; 446 __u16 devid_product; 447 __u16 devid_version; 448 449 __u8 def_page_scan_type; 450 __u16 def_page_scan_int; 451 __u16 def_page_scan_window; 452 __u8 def_inq_scan_type; 453 __u16 def_inq_scan_int; 454 __u16 def_inq_scan_window; 455 __u16 def_br_lsto; 456 __u16 def_page_timeout; 457 __u16 def_multi_adv_rotation_duration; 458 __u16 def_le_autoconnect_timeout; 459 __s8 min_le_tx_power; 460 __s8 max_le_tx_power; 461 462 __u16 pkt_type; 463 __u16 esco_type; 464 __u16 link_policy; 465 __u16 link_mode; 466 467 __u32 idle_timeout; 468 __u16 sniff_min_interval; 469 __u16 sniff_max_interval; 470 471 unsigned int auto_accept_delay; 472 473 DECLARE_BITMAP(quirk_flags, __HCI_NUM_QUIRKS); 474 475 atomic_t cmd_cnt; 476 unsigned int acl_cnt; 477 unsigned int sco_cnt; 478 unsigned int le_cnt; 479 unsigned int iso_cnt; 480 481 unsigned int acl_mtu; 482 unsigned int sco_mtu; 483 unsigned int le_mtu; 484 unsigned int iso_mtu; 485 unsigned int acl_pkts; 486 unsigned int sco_pkts; 487 unsigned int le_pkts; 488 unsigned int iso_pkts; 489 490 unsigned long acl_last_tx; 491 unsigned long le_last_tx; 492 unsigned long iso_last_tx; 493 494 __u8 le_tx_def_phys; 495 __u8 le_rx_def_phys; 496 497 struct workqueue_struct *workqueue; 498 struct workqueue_struct *req_workqueue; 499 500 struct work_struct power_on; 501 struct delayed_work power_off; 502 struct work_struct error_reset; 503 struct work_struct cmd_sync_work; 504 struct list_head cmd_sync_work_list; 505 struct mutex cmd_sync_work_lock; 506 struct mutex unregister_lock; 507 struct work_struct cmd_sync_cancel_work; 508 struct work_struct reenable_adv_work; 509 510 __u16 discov_timeout; 511 struct delayed_work discov_off; 512 513 struct delayed_work service_cache; 514 515 struct delayed_work cmd_timer; 516 struct delayed_work ncmd_timer; 517 518 struct work_struct rx_work; 519 struct work_struct cmd_work; 520 struct work_struct tx_work; 521 522 struct delayed_work le_scan_disable; 523 524 struct sk_buff_head rx_q; 525 struct sk_buff_head raw_q; 526 struct sk_buff_head cmd_q; 527 528 struct sk_buff *sent_cmd; 529 struct sk_buff *recv_event; 530 531 struct mutex req_lock; 532 wait_queue_head_t req_wait_q; 533 __u32 req_status; 534 __u32 req_result; 535 struct sk_buff *req_skb; 536 struct sk_buff *req_rsp; 537 538 void *smp_data; 539 void *smp_bredr_data; 540 541 struct discovery_state discovery; 542 543 bool discovery_paused; 544 int advertising_old_state; 545 bool advertising_paused; 546 547 struct notifier_block suspend_notifier; 548 enum suspended_state suspend_state_next; 549 enum suspended_state suspend_state; 550 bool scanning_paused; 551 bool suspended; 552 u8 wake_reason; 553 bdaddr_t wake_addr; 554 u8 wake_addr_type; 555 556 struct hci_conn_hash conn_hash; 557 558 struct list_head mesh_pending; 559 struct mutex mgmt_pending_lock; 560 struct list_head mgmt_pending; 561 struct list_head reject_list; 562 struct list_head accept_list; 563 struct list_head uuids; 564 struct list_head link_keys; 565 struct list_head long_term_keys; 566 struct list_head identity_resolving_keys; 567 struct list_head remote_oob_data; 568 struct list_head le_accept_list; 569 struct list_head le_resolv_list; 570 struct list_head le_conn_params; 571 struct list_head pend_le_conns; 572 struct list_head pend_le_reports; 573 struct list_head blocked_keys; 574 struct list_head local_codecs; 575 576 struct hci_dev_stats stat; 577 578 atomic_t promisc; 579 580 const char *hw_info; 581 const char *fw_info; 582 struct dentry *debugfs; 583 584 struct hci_devcoredump dump; 585 586 struct device dev; 587 588 struct rfkill *rfkill; 589 590 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 591 hci_conn_flags_t conn_flags; 592 593 __s8 adv_tx_power; 594 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 595 __u8 adv_data_len; 596 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 597 __u8 scan_rsp_data_len; 598 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 599 __u8 per_adv_data_len; 600 601 struct list_head adv_instances; 602 unsigned int adv_instance_cnt; 603 __u8 cur_adv_instance; 604 __u16 adv_instance_timeout; 605 struct delayed_work adv_instance_expire; 606 607 struct idr adv_monitors_idr; 608 unsigned int adv_monitors_cnt; 609 610 __u8 irk[16]; 611 __u32 rpa_timeout; 612 struct delayed_work rpa_expired; 613 bdaddr_t rpa; 614 615 struct delayed_work mesh_send_done; 616 617 enum { 618 INTERLEAVE_SCAN_NONE, 619 INTERLEAVE_SCAN_NO_FILTER, 620 INTERLEAVE_SCAN_ALLOWLIST 621 } interleave_scan_state; 622 623 struct delayed_work interleave_scan; 624 625 struct list_head monitored_devices; 626 bool advmon_pend_notify; 627 628 struct hci_drv *hci_drv; 629 630 #if IS_ENABLED(CONFIG_BT_LEDS) 631 struct led_trigger *power_led; 632 #endif 633 634 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 635 __u16 msft_opcode; 636 void *msft_data; 637 bool msft_curve_validity; 638 #endif 639 640 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 641 bool aosp_capable; 642 bool aosp_quality_report; 643 #endif 644 645 int (*open)(struct hci_dev *hdev); 646 int (*close)(struct hci_dev *hdev); 647 int (*flush)(struct hci_dev *hdev); 648 int (*setup)(struct hci_dev *hdev); 649 int (*shutdown)(struct hci_dev *hdev); 650 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 651 void (*notify)(struct hci_dev *hdev, unsigned int evt); 652 void (*hw_error)(struct hci_dev *hdev, u8 code); 653 int (*post_init)(struct hci_dev *hdev); 654 int (*set_diag)(struct hci_dev *hdev, bool enable); 655 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 656 void (*reset)(struct hci_dev *hdev); 657 bool (*wakeup)(struct hci_dev *hdev); 658 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 659 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 660 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 661 struct bt_codec *codec, __u8 *vnd_len, 662 __u8 **vnd_data); 663 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); 664 }; 665 666 #define hci_set_quirk(hdev, nr) set_bit((nr), (hdev)->quirk_flags) 667 #define hci_clear_quirk(hdev, nr) clear_bit((nr), (hdev)->quirk_flags) 668 #define hci_test_quirk(hdev, nr) test_bit((nr), (hdev)->quirk_flags) 669 670 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 671 672 enum conn_reasons { 673 CONN_REASON_PAIR_DEVICE, 674 CONN_REASON_L2CAP_CHAN, 675 CONN_REASON_SCO_CONNECT, 676 CONN_REASON_ISO_CONNECT, 677 }; 678 679 struct hci_conn { 680 struct list_head list; 681 682 atomic_t refcnt; 683 684 bdaddr_t dst; 685 __u8 dst_type; 686 bdaddr_t src; 687 __u8 src_type; 688 bdaddr_t init_addr; 689 __u8 init_addr_type; 690 bdaddr_t resp_addr; 691 __u8 resp_addr_type; 692 __u8 adv_instance; 693 __u16 handle; 694 __u16 sync_handle; 695 __u8 sid; 696 __u16 state; 697 __u16 mtu; 698 __u8 mode; 699 __u8 type; 700 __u8 role; 701 bool out; 702 __u8 attempt; 703 __u8 dev_class[3]; 704 __u8 features[HCI_MAX_PAGES][8]; 705 __u8 le_features[248]; 706 __u16 pkt_type; 707 __u16 link_policy; 708 __u8 key_type; 709 __u8 auth_type; 710 __u8 sec_level; 711 __u8 pending_sec_level; 712 __u8 pin_length; 713 __u8 enc_key_size; 714 __u8 io_capability; 715 __u32 passkey_notify; 716 __u8 passkey_entered; 717 __u16 disc_timeout; 718 __u16 conn_timeout; 719 __u16 setting; 720 __u16 auth_payload_timeout; 721 __u16 le_conn_min_interval; 722 __u16 le_conn_max_interval; 723 __u16 le_conn_interval; 724 __u16 le_conn_latency; 725 __u16 le_supv_timeout; 726 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; 727 __u8 le_adv_data_len; 728 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; 729 __u16 le_per_adv_data_len; 730 __u16 le_per_adv_data_offset; 731 __u8 le_adv_phy; 732 __u8 le_adv_sec_phy; 733 __u8 le_tx_def_phys; 734 __u8 le_rx_def_phys; 735 __u8 le_tx_phy; 736 __u8 le_rx_phy; 737 __s8 rssi; 738 __s8 tx_power; 739 __s8 max_tx_power; 740 struct bt_iso_qos iso_qos; 741 __u8 num_bis; 742 __u8 bis[HCI_MAX_ISO_BIS]; 743 744 unsigned long flags; 745 746 enum conn_reasons conn_reason; 747 __u8 abort_reason; 748 749 __u32 clock; 750 __u16 clock_accuracy; 751 752 unsigned long conn_info_timestamp; 753 754 __u8 remote_cap; 755 __u8 remote_auth; 756 757 unsigned int sent; 758 759 struct sk_buff_head data_q; 760 struct list_head chan_list; 761 762 struct tx_queue tx_q; 763 764 struct delayed_work disc_work; 765 struct delayed_work auto_accept_work; 766 struct delayed_work idle_work; 767 struct delayed_work le_conn_timeout; 768 769 struct device dev; 770 struct dentry *debugfs; 771 772 struct hci_dev *hdev; 773 void *l2cap_data; 774 void *sco_data; 775 void *iso_data; 776 777 struct list_head link_list; 778 struct hci_conn *parent; 779 struct hci_link *link; 780 781 struct bt_codec codec; 782 783 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 784 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 785 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 786 787 void (*cleanup)(struct hci_conn *conn); 788 }; 789 790 struct hci_link { 791 struct list_head list; 792 struct hci_conn *conn; 793 }; 794 795 struct hci_chan { 796 struct list_head list; 797 __u16 handle; 798 struct hci_conn *conn; 799 struct sk_buff_head data_q; 800 unsigned int sent; 801 __u8 state; 802 }; 803 804 struct hci_conn_params { 805 struct list_head list; 806 struct list_head action; 807 808 bdaddr_t addr; 809 u8 addr_type; 810 811 u16 conn_min_interval; 812 u16 conn_max_interval; 813 u16 conn_latency; 814 u16 supervision_timeout; 815 816 enum { 817 HCI_AUTO_CONN_DISABLED, 818 HCI_AUTO_CONN_REPORT, 819 HCI_AUTO_CONN_DIRECT, 820 HCI_AUTO_CONN_ALWAYS, 821 HCI_AUTO_CONN_LINK_LOSS, 822 HCI_AUTO_CONN_EXPLICIT, 823 } auto_connect; 824 825 struct hci_conn *conn; 826 bool explicit_connect; 827 /* Accessed without hdev->lock: */ 828 hci_conn_flags_t flags; 829 u8 privacy_mode; 830 }; 831 832 extern struct list_head hci_dev_list; 833 extern struct list_head hci_cb_list; 834 extern rwlock_t hci_dev_list_lock; 835 extern struct mutex hci_cb_list_lock; 836 837 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 838 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 839 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 840 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 841 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 842 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 843 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 844 845 #define hci_dev_clear_volatile_flags(hdev) \ 846 do { \ 847 hci_dev_clear_flag((hdev), HCI_LE_SCAN); \ 848 hci_dev_clear_flag((hdev), HCI_LE_ADV); \ 849 hci_dev_clear_flag((hdev), HCI_LL_RPA_RESOLUTION); \ 850 hci_dev_clear_flag((hdev), HCI_PERIODIC_INQ); \ 851 hci_dev_clear_flag((hdev), HCI_QUALITY_REPORT); \ 852 } while (0) 853 854 #define hci_dev_le_state_simultaneous(hdev) \ 855 (!hci_test_quirk((hdev), HCI_QUIRK_BROKEN_LE_STATES) && \ 856 ((hdev)->le_states[4] & 0x08) && /* Central */ \ 857 ((hdev)->le_states[4] & 0x40) && /* Peripheral */ \ 858 ((hdev)->le_states[3] & 0x10)) /* Simultaneous */ 859 860 /* ----- HCI interface to upper protocols ----- */ 861 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 862 int l2cap_disconn_ind(struct hci_conn *hcon); 863 int l2cap_recv_acldata(struct hci_dev *hdev, u16 handle, struct sk_buff *skb, 864 u16 flags); 865 866 #if IS_ENABLED(CONFIG_BT_BREDR) 867 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 868 int sco_recv_scodata(struct hci_dev *hdev, u16 handle, struct sk_buff *skb); 869 #else 870 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 871 __u8 *flags) 872 { 873 return 0; 874 } 875 876 static inline int sco_recv_scodata(struct hci_dev *hdev, u16 handle, 877 struct sk_buff *skb) 878 { 879 kfree_skb(skb); 880 return -ENOENT; 881 } 882 #endif 883 884 #if IS_ENABLED(CONFIG_BT_LE) 885 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 886 int iso_recv(struct hci_dev *hdev, u16 handle, struct sk_buff *skb, 887 u16 flags); 888 #else 889 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 890 __u8 *flags) 891 { 892 return 0; 893 } 894 895 static inline int iso_recv(struct hci_dev *hdev, u16 handle, 896 struct sk_buff *skb, u16 flags) 897 { 898 kfree_skb(skb); 899 return -ENOENT; 900 } 901 #endif 902 903 /* ----- Inquiry cache ----- */ 904 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 905 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 906 907 static inline void discovery_init(struct hci_dev *hdev) 908 { 909 spin_lock_init(&hdev->discovery.lock); 910 hdev->discovery.state = DISCOVERY_STOPPED; 911 INIT_LIST_HEAD(&hdev->discovery.all); 912 INIT_LIST_HEAD(&hdev->discovery.unknown); 913 INIT_LIST_HEAD(&hdev->discovery.resolve); 914 hdev->discovery.report_invalid_rssi = true; 915 hdev->discovery.rssi = HCI_RSSI_INVALID; 916 } 917 918 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 919 { 920 hdev->discovery.result_filtering = false; 921 hdev->discovery.report_invalid_rssi = true; 922 hdev->discovery.rssi = HCI_RSSI_INVALID; 923 hdev->discovery.uuid_count = 0; 924 925 spin_lock(&hdev->discovery.lock); 926 kfree(hdev->discovery.uuids); 927 hdev->discovery.uuids = NULL; 928 spin_unlock(&hdev->discovery.lock); 929 } 930 931 bool hci_discovery_active(struct hci_dev *hdev); 932 933 void hci_discovery_set_state(struct hci_dev *hdev, int state); 934 935 static inline int inquiry_cache_empty(struct hci_dev *hdev) 936 { 937 return list_empty(&hdev->discovery.all); 938 } 939 940 static inline long inquiry_cache_age(struct hci_dev *hdev) 941 { 942 struct discovery_state *c = &hdev->discovery; 943 return jiffies - c->timestamp; 944 } 945 946 static inline long inquiry_entry_age(struct inquiry_entry *e) 947 { 948 return jiffies - e->timestamp; 949 } 950 951 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 952 bdaddr_t *bdaddr); 953 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 954 bdaddr_t *bdaddr); 955 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 956 bdaddr_t *bdaddr, 957 int state); 958 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 959 struct inquiry_entry *ie); 960 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 961 bool name_known); 962 void hci_inquiry_cache_flush(struct hci_dev *hdev); 963 964 /* ----- HCI Connections ----- */ 965 enum { 966 HCI_CONN_AUTH_PEND, 967 HCI_CONN_ENCRYPT_PEND, 968 HCI_CONN_RSWITCH_PEND, 969 HCI_CONN_MODE_CHANGE_PEND, 970 HCI_CONN_SCO_SETUP_PEND, 971 HCI_CONN_MGMT_CONNECTED, 972 HCI_CONN_SSP_ENABLED, 973 HCI_CONN_SC_ENABLED, 974 HCI_CONN_AES_CCM, 975 HCI_CONN_POWER_SAVE, 976 HCI_CONN_FLUSH_KEY, 977 HCI_CONN_ENCRYPT, 978 HCI_CONN_AUTH, 979 HCI_CONN_SECURE, 980 HCI_CONN_FIPS, 981 HCI_CONN_STK_ENCRYPT, 982 HCI_CONN_AUTH_INITIATOR, 983 HCI_CONN_DROP, 984 HCI_CONN_CANCEL, 985 HCI_CONN_PARAM_REMOVAL_PEND, 986 HCI_CONN_NEW_LINK_KEY, 987 HCI_CONN_SCANNING, 988 HCI_CONN_AUTH_FAILURE, 989 HCI_CONN_PER_ADV, 990 HCI_CONN_BIG_CREATED, 991 HCI_CONN_CREATE_CIS, 992 HCI_CONN_CREATE_BIG_SYNC, 993 HCI_CONN_BIG_SYNC, 994 HCI_CONN_BIG_SYNC_FAILED, 995 HCI_CONN_CREATE_PA_SYNC, 996 HCI_CONN_PA_SYNC, 997 HCI_CONN_PA_SYNC_FAILED, 998 }; 999 1000 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 1001 { 1002 struct hci_dev *hdev = conn->hdev; 1003 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 1004 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 1005 } 1006 1007 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 1008 { 1009 struct hci_dev *hdev = conn->hdev; 1010 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 1011 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 1012 } 1013 1014 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 1015 { 1016 struct hci_conn_hash *h = &hdev->conn_hash; 1017 list_add_tail_rcu(&c->list, &h->list); 1018 switch (c->type) { 1019 case ACL_LINK: 1020 h->acl_num++; 1021 break; 1022 case LE_LINK: 1023 h->le_num++; 1024 if (c->role == HCI_ROLE_SLAVE) 1025 h->le_num_peripheral++; 1026 break; 1027 case SCO_LINK: 1028 case ESCO_LINK: 1029 h->sco_num++; 1030 break; 1031 case CIS_LINK: 1032 h->cis_num++; 1033 break; 1034 case BIS_LINK: 1035 h->bis_num++; 1036 break; 1037 case PA_LINK: 1038 h->pa_num++; 1039 break; 1040 } 1041 } 1042 1043 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 1044 { 1045 struct hci_conn_hash *h = &hdev->conn_hash; 1046 1047 list_del_rcu(&c->list); 1048 synchronize_rcu(); 1049 1050 switch (c->type) { 1051 case ACL_LINK: 1052 h->acl_num--; 1053 break; 1054 case LE_LINK: 1055 h->le_num--; 1056 if (c->role == HCI_ROLE_SLAVE) 1057 h->le_num_peripheral--; 1058 break; 1059 case SCO_LINK: 1060 case ESCO_LINK: 1061 h->sco_num--; 1062 break; 1063 case CIS_LINK: 1064 h->cis_num--; 1065 break; 1066 case BIS_LINK: 1067 h->bis_num--; 1068 break; 1069 case PA_LINK: 1070 h->pa_num--; 1071 break; 1072 } 1073 } 1074 1075 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 1076 { 1077 struct hci_conn_hash *h = &hdev->conn_hash; 1078 switch (type) { 1079 case ACL_LINK: 1080 return h->acl_num; 1081 case LE_LINK: 1082 return h->le_num; 1083 case SCO_LINK: 1084 case ESCO_LINK: 1085 return h->sco_num; 1086 case CIS_LINK: 1087 return h->cis_num; 1088 case BIS_LINK: 1089 return h->bis_num; 1090 case PA_LINK: 1091 return h->pa_num; 1092 default: 1093 return 0; 1094 } 1095 } 1096 1097 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 1098 { 1099 struct hci_conn_hash *c = &hdev->conn_hash; 1100 1101 return c->acl_num + c->sco_num + c->le_num + c->cis_num + c->bis_num + 1102 c->pa_num; 1103 } 1104 1105 static inline unsigned int hci_iso_count(struct hci_dev *hdev) 1106 { 1107 struct hci_conn_hash *c = &hdev->conn_hash; 1108 1109 return c->cis_num + c->bis_num; 1110 } 1111 1112 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) 1113 { 1114 struct hci_conn_hash *h = &hdev->conn_hash; 1115 struct hci_conn *c; 1116 1117 rcu_read_lock(); 1118 1119 list_for_each_entry_rcu(c, &h->list, list) { 1120 if (c == conn) { 1121 rcu_read_unlock(); 1122 return true; 1123 } 1124 } 1125 rcu_read_unlock(); 1126 1127 return false; 1128 } 1129 1130 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 1131 { 1132 struct hci_conn_hash *h = &hdev->conn_hash; 1133 struct hci_conn *c; 1134 __u8 type = INVALID_LINK; 1135 1136 rcu_read_lock(); 1137 1138 list_for_each_entry_rcu(c, &h->list, list) { 1139 if (c->handle == handle) { 1140 type = c->type; 1141 break; 1142 } 1143 } 1144 1145 rcu_read_unlock(); 1146 1147 return type; 1148 } 1149 1150 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, 1151 bdaddr_t *ba, __u8 bis) 1152 { 1153 struct hci_conn_hash *h = &hdev->conn_hash; 1154 struct hci_conn *c; 1155 1156 rcu_read_lock(); 1157 1158 list_for_each_entry_rcu(c, &h->list, list) { 1159 if (bacmp(&c->dst, ba) || c->type != BIS_LINK) 1160 continue; 1161 1162 if (c->iso_qos.bcast.bis == bis) { 1163 rcu_read_unlock(); 1164 return c; 1165 } 1166 } 1167 rcu_read_unlock(); 1168 1169 return NULL; 1170 } 1171 1172 static inline struct hci_conn * 1173 hci_conn_hash_lookup_create_pa_sync(struct hci_dev *hdev) 1174 { 1175 struct hci_conn_hash *h = &hdev->conn_hash; 1176 struct hci_conn *c; 1177 1178 rcu_read_lock(); 1179 1180 list_for_each_entry_rcu(c, &h->list, list) { 1181 if (c->type != PA_LINK) 1182 continue; 1183 1184 if (!test_bit(HCI_CONN_CREATE_PA_SYNC, &c->flags)) 1185 continue; 1186 1187 rcu_read_unlock(); 1188 return c; 1189 } 1190 1191 rcu_read_unlock(); 1192 1193 return NULL; 1194 } 1195 1196 static inline struct hci_conn * 1197 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, 1198 bdaddr_t *ba, 1199 __u8 big, __u8 bis) 1200 { 1201 struct hci_conn_hash *h = &hdev->conn_hash; 1202 struct hci_conn *c; 1203 1204 rcu_read_lock(); 1205 1206 list_for_each_entry_rcu(c, &h->list, list) { 1207 if (bacmp(&c->dst, ba) || c->type != BIS_LINK || 1208 !test_bit(HCI_CONN_PER_ADV, &c->flags)) 1209 continue; 1210 1211 if (c->iso_qos.bcast.big == big && 1212 c->iso_qos.bcast.bis == bis) { 1213 rcu_read_unlock(); 1214 return c; 1215 } 1216 } 1217 rcu_read_unlock(); 1218 1219 return NULL; 1220 } 1221 1222 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1223 __u16 handle) 1224 { 1225 struct hci_conn_hash *h = &hdev->conn_hash; 1226 struct hci_conn *c; 1227 1228 rcu_read_lock(); 1229 1230 list_for_each_entry_rcu(c, &h->list, list) { 1231 if (c->handle == handle) { 1232 rcu_read_unlock(); 1233 return c; 1234 } 1235 } 1236 rcu_read_unlock(); 1237 1238 return NULL; 1239 } 1240 1241 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1242 __u8 type, bdaddr_t *ba) 1243 { 1244 struct hci_conn_hash *h = &hdev->conn_hash; 1245 struct hci_conn *c; 1246 1247 rcu_read_lock(); 1248 1249 list_for_each_entry_rcu(c, &h->list, list) { 1250 if (c->type == type && !bacmp(&c->dst, ba)) { 1251 rcu_read_unlock(); 1252 return c; 1253 } 1254 } 1255 1256 rcu_read_unlock(); 1257 1258 return NULL; 1259 } 1260 1261 static inline struct hci_conn *hci_conn_hash_lookup_role(struct hci_dev *hdev, 1262 __u8 type, __u8 role, 1263 bdaddr_t *ba) 1264 { 1265 struct hci_conn_hash *h = &hdev->conn_hash; 1266 struct hci_conn *c; 1267 1268 rcu_read_lock(); 1269 1270 list_for_each_entry_rcu(c, &h->list, list) { 1271 if (c->type == type && c->role == role && !bacmp(&c->dst, ba)) { 1272 rcu_read_unlock(); 1273 return c; 1274 } 1275 } 1276 1277 rcu_read_unlock(); 1278 1279 return NULL; 1280 } 1281 1282 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1283 bdaddr_t *ba, 1284 __u8 ba_type) 1285 { 1286 struct hci_conn_hash *h = &hdev->conn_hash; 1287 struct hci_conn *c; 1288 1289 rcu_read_lock(); 1290 1291 list_for_each_entry_rcu(c, &h->list, list) { 1292 if (c->type != LE_LINK) 1293 continue; 1294 1295 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1296 rcu_read_unlock(); 1297 return c; 1298 } 1299 } 1300 1301 rcu_read_unlock(); 1302 1303 return NULL; 1304 } 1305 1306 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, 1307 bdaddr_t *ba, 1308 __u8 ba_type, 1309 __u8 cig, 1310 __u8 id) 1311 { 1312 struct hci_conn_hash *h = &hdev->conn_hash; 1313 struct hci_conn *c; 1314 1315 rcu_read_lock(); 1316 1317 list_for_each_entry_rcu(c, &h->list, list) { 1318 if (c->type != CIS_LINK) 1319 continue; 1320 1321 /* Match CIG ID if set */ 1322 if (cig != c->iso_qos.ucast.cig) 1323 continue; 1324 1325 /* Match CIS ID if set */ 1326 if (id != c->iso_qos.ucast.cis) 1327 continue; 1328 1329 /* Match destination address if set */ 1330 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { 1331 rcu_read_unlock(); 1332 return c; 1333 } 1334 } 1335 1336 rcu_read_unlock(); 1337 1338 return NULL; 1339 } 1340 1341 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, 1342 __u8 handle) 1343 { 1344 struct hci_conn_hash *h = &hdev->conn_hash; 1345 struct hci_conn *c; 1346 1347 rcu_read_lock(); 1348 1349 list_for_each_entry_rcu(c, &h->list, list) { 1350 if (c->type != CIS_LINK) 1351 continue; 1352 1353 if (handle == c->iso_qos.ucast.cig) { 1354 rcu_read_unlock(); 1355 return c; 1356 } 1357 } 1358 1359 rcu_read_unlock(); 1360 1361 return NULL; 1362 } 1363 1364 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, 1365 __u8 handle) 1366 { 1367 struct hci_conn_hash *h = &hdev->conn_hash; 1368 struct hci_conn *c; 1369 1370 rcu_read_lock(); 1371 1372 list_for_each_entry_rcu(c, &h->list, list) { 1373 if (c->type != BIS_LINK) 1374 continue; 1375 1376 if (handle == c->iso_qos.bcast.big) { 1377 rcu_read_unlock(); 1378 return c; 1379 } 1380 } 1381 1382 rcu_read_unlock(); 1383 1384 return NULL; 1385 } 1386 1387 static inline struct hci_conn * 1388 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev, 1389 __u8 handle, __u8 num_bis) 1390 { 1391 struct hci_conn_hash *h = &hdev->conn_hash; 1392 struct hci_conn *c; 1393 1394 rcu_read_lock(); 1395 1396 list_for_each_entry_rcu(c, &h->list, list) { 1397 if (c->type != PA_LINK) 1398 continue; 1399 1400 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) { 1401 rcu_read_unlock(); 1402 return c; 1403 } 1404 } 1405 1406 rcu_read_unlock(); 1407 1408 return NULL; 1409 } 1410 1411 static inline struct hci_conn * 1412 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state, 1413 __u8 role) 1414 { 1415 struct hci_conn_hash *h = &hdev->conn_hash; 1416 struct hci_conn *c; 1417 1418 rcu_read_lock(); 1419 1420 list_for_each_entry_rcu(c, &h->list, list) { 1421 if (c->type != BIS_LINK || c->state != state || c->role != role) 1422 continue; 1423 1424 if (handle == c->iso_qos.bcast.big) { 1425 rcu_read_unlock(); 1426 return c; 1427 } 1428 } 1429 1430 rcu_read_unlock(); 1431 1432 return NULL; 1433 } 1434 1435 static inline struct hci_conn * 1436 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) 1437 { 1438 struct hci_conn_hash *h = &hdev->conn_hash; 1439 struct hci_conn *c; 1440 1441 rcu_read_lock(); 1442 1443 list_for_each_entry_rcu(c, &h->list, list) { 1444 if (c->type != BIS_LINK || 1445 !test_bit(HCI_CONN_PA_SYNC, &c->flags)) 1446 continue; 1447 1448 if (c->iso_qos.bcast.big == big) { 1449 rcu_read_unlock(); 1450 return c; 1451 } 1452 } 1453 rcu_read_unlock(); 1454 1455 return NULL; 1456 } 1457 1458 static inline struct hci_conn * 1459 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) 1460 { 1461 struct hci_conn_hash *h = &hdev->conn_hash; 1462 struct hci_conn *c; 1463 1464 rcu_read_lock(); 1465 1466 list_for_each_entry_rcu(c, &h->list, list) { 1467 if (c->type != PA_LINK) 1468 continue; 1469 1470 /* Ignore the listen hcon, we are looking 1471 * for the child hcon that was created as 1472 * a result of the PA sync established event. 1473 */ 1474 if (c->state == BT_LISTEN) 1475 continue; 1476 1477 if (c->sync_handle == sync_handle) { 1478 rcu_read_unlock(); 1479 return c; 1480 } 1481 } 1482 rcu_read_unlock(); 1483 1484 return NULL; 1485 } 1486 1487 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); 1488 static inline void hci_conn_hash_list_state(struct hci_dev *hdev, 1489 hci_conn_func_t func, __u8 type, 1490 __u16 state, void *data) 1491 { 1492 struct hci_conn_hash *h = &hdev->conn_hash; 1493 struct hci_conn *c; 1494 1495 if (!func) 1496 return; 1497 1498 rcu_read_lock(); 1499 1500 list_for_each_entry_rcu(c, &h->list, list) { 1501 if (c->type == type && c->state == state) 1502 func(c, data); 1503 } 1504 1505 rcu_read_unlock(); 1506 } 1507 1508 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, 1509 hci_conn_func_t func, __u8 type, 1510 __u8 flag, void *data) 1511 { 1512 struct hci_conn_hash *h = &hdev->conn_hash; 1513 struct hci_conn *c; 1514 1515 if (!func) 1516 return; 1517 1518 rcu_read_lock(); 1519 1520 list_for_each_entry_rcu(c, &h->list, list) { 1521 if (c->type == type && test_bit(flag, &c->flags)) 1522 func(c, data); 1523 } 1524 1525 rcu_read_unlock(); 1526 } 1527 1528 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1529 { 1530 struct hci_conn_hash *h = &hdev->conn_hash; 1531 struct hci_conn *c; 1532 1533 rcu_read_lock(); 1534 1535 list_for_each_entry_rcu(c, &h->list, list) { 1536 if (c->type == LE_LINK && c->state == BT_CONNECT && 1537 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1538 rcu_read_unlock(); 1539 return c; 1540 } 1541 } 1542 1543 rcu_read_unlock(); 1544 1545 return NULL; 1546 } 1547 1548 /* Returns true if an le connection is in the scanning state */ 1549 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) 1550 { 1551 struct hci_conn_hash *h = &hdev->conn_hash; 1552 struct hci_conn *c; 1553 1554 rcu_read_lock(); 1555 1556 list_for_each_entry_rcu(c, &h->list, list) { 1557 if (c->type == LE_LINK && c->state == BT_CONNECT && 1558 test_bit(HCI_CONN_SCANNING, &c->flags)) { 1559 rcu_read_unlock(); 1560 return true; 1561 } 1562 } 1563 1564 rcu_read_unlock(); 1565 1566 return false; 1567 } 1568 1569 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1570 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1571 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1572 bool hci_iso_setup_path(struct hci_conn *conn); 1573 int hci_le_create_cis_pending(struct hci_dev *hdev); 1574 int hci_conn_check_create_cis(struct hci_conn *conn); 1575 1576 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1577 u8 dst_type, u8 role, u16 handle); 1578 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, 1579 bdaddr_t *dst, u8 dst_type, u8 role); 1580 void hci_conn_del(struct hci_conn *conn); 1581 void hci_conn_hash_flush(struct hci_dev *hdev); 1582 1583 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1584 void hci_chan_del(struct hci_chan *chan); 1585 void hci_chan_list_flush(struct hci_conn *conn); 1586 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1587 1588 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1589 u8 dst_type, u8 sec_level, 1590 u16 conn_timeout, 1591 enum conn_reasons conn_reason); 1592 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1593 u8 dst_type, bool dst_resolved, u8 sec_level, 1594 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); 1595 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); 1596 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1597 u8 sec_level, u8 auth_type, 1598 enum conn_reasons conn_reason, u16 timeout); 1599 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1600 __u16 setting, struct bt_codec *codec, 1601 u16 timeout); 1602 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, 1603 __u8 dst_type, struct bt_iso_qos *qos, 1604 u16 timeout); 1605 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid, 1606 struct bt_iso_qos *qos, 1607 __u8 base_len, __u8 *base, u16 timeout); 1608 int hci_past_bis(struct hci_conn *conn, bdaddr_t *dst, __u8 dst_type); 1609 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, 1610 __u8 dst_type, struct bt_iso_qos *qos, 1611 u16 timeout); 1612 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, 1613 __u8 dst_type, __u8 sid, 1614 struct bt_iso_qos *qos, 1615 __u8 data_len, __u8 *data, u16 timeout); 1616 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, 1617 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); 1618 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, 1619 struct bt_iso_qos *qos, __u16 sync_handle, 1620 __u8 num_bis, __u8 bis[]); 1621 int hci_conn_check_link_mode(struct hci_conn *conn); 1622 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1623 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1624 bool initiator); 1625 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1626 1627 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1628 1629 void hci_conn_failed(struct hci_conn *conn, u8 status); 1630 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); 1631 1632 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb); 1633 void hci_conn_tx_dequeue(struct hci_conn *conn); 1634 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset, 1635 const struct sockcm_cookie *sockc); 1636 1637 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk) 1638 { 1639 *sockc = (struct sockcm_cookie) { 1640 .tsflags = READ_ONCE(sk->sk_tsflags), 1641 }; 1642 } 1643 1644 /* 1645 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1646 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1647 * working or anything else. They just guarantee that the object is available 1648 * and can be dereferenced. So you can use its locks, local variables and any 1649 * other constant data. 1650 * Before accessing runtime data, you _must_ lock the object and then check that 1651 * it is still running. As soon as you release the locks, the connection might 1652 * get dropped, though. 1653 * 1654 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1655 * how long the underlying connection is held. So every channel that runs on the 1656 * hci_conn object calls this to prevent the connection from disappearing. As 1657 * long as you hold a device, you must also guarantee that you have a valid 1658 * reference to the device via hci_conn_get() (or the initial reference from 1659 * hci_conn_add()). 1660 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1661 * break because nobody cares for that. But this means, we cannot use 1662 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1663 */ 1664 1665 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1666 { 1667 get_device(&conn->dev); 1668 return conn; 1669 } 1670 1671 static inline void hci_conn_put(struct hci_conn *conn) 1672 { 1673 put_device(&conn->dev); 1674 } 1675 1676 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) 1677 { 1678 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1679 1680 atomic_inc(&conn->refcnt); 1681 cancel_delayed_work(&conn->disc_work); 1682 1683 return conn; 1684 } 1685 1686 static inline void hci_conn_drop(struct hci_conn *conn) 1687 { 1688 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1689 1690 if (atomic_dec_and_test(&conn->refcnt)) { 1691 unsigned long timeo; 1692 1693 switch (conn->type) { 1694 case ACL_LINK: 1695 case LE_LINK: 1696 cancel_delayed_work(&conn->idle_work); 1697 if (conn->state == BT_CONNECTED) { 1698 timeo = conn->disc_timeout; 1699 if (!conn->out) 1700 timeo *= 2; 1701 } else { 1702 timeo = 0; 1703 } 1704 break; 1705 1706 default: 1707 timeo = 0; 1708 break; 1709 } 1710 1711 cancel_delayed_work(&conn->disc_work); 1712 queue_delayed_work(conn->hdev->workqueue, 1713 &conn->disc_work, timeo); 1714 } 1715 } 1716 1717 /* ----- HCI Devices ----- */ 1718 static inline void hci_dev_put(struct hci_dev *d) 1719 { 1720 BT_DBG("%s orig refcnt %d", d->name, 1721 kref_read(&d->dev.kobj.kref)); 1722 1723 put_device(&d->dev); 1724 } 1725 1726 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1727 { 1728 BT_DBG("%s orig refcnt %d", d->name, 1729 kref_read(&d->dev.kobj.kref)); 1730 1731 get_device(&d->dev); 1732 return d; 1733 } 1734 1735 #define hci_dev_lock(d) mutex_lock(&d->lock) 1736 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1737 1738 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1739 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1740 1741 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1742 { 1743 return dev_get_drvdata(&hdev->dev); 1744 } 1745 1746 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1747 { 1748 dev_set_drvdata(&hdev->dev, data); 1749 } 1750 1751 static inline void *hci_get_priv(struct hci_dev *hdev) 1752 { 1753 return (char *)hdev + sizeof(*hdev); 1754 } 1755 1756 struct hci_dev *hci_dev_get(int index); 1757 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1758 1759 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1760 1761 static inline struct hci_dev *hci_alloc_dev(void) 1762 { 1763 return hci_alloc_dev_priv(0); 1764 } 1765 1766 void hci_free_dev(struct hci_dev *hdev); 1767 int hci_register_dev(struct hci_dev *hdev); 1768 void hci_unregister_dev(struct hci_dev *hdev); 1769 void hci_release_dev(struct hci_dev *hdev); 1770 int hci_register_suspend_notifier(struct hci_dev *hdev); 1771 int hci_unregister_suspend_notifier(struct hci_dev *hdev); 1772 int hci_suspend_dev(struct hci_dev *hdev); 1773 int hci_resume_dev(struct hci_dev *hdev); 1774 int hci_reset_dev(struct hci_dev *hdev); 1775 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1776 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1777 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1778 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1779 1780 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1781 { 1782 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1783 hdev->msft_opcode = opcode; 1784 #endif 1785 } 1786 1787 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1788 { 1789 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1790 hdev->aosp_capable = true; 1791 #endif 1792 } 1793 1794 static inline void hci_devcd_setup(struct hci_dev *hdev) 1795 { 1796 #ifdef CONFIG_DEV_COREDUMP 1797 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); 1798 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); 1799 skb_queue_head_init(&hdev->dump.dump_q); 1800 #endif 1801 } 1802 1803 int hci_dev_open(__u16 dev); 1804 int hci_dev_close(__u16 dev); 1805 int hci_dev_do_close(struct hci_dev *hdev); 1806 int hci_dev_reset(__u16 dev); 1807 int hci_dev_reset_stat(__u16 dev); 1808 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1809 int hci_get_dev_list(void __user *arg); 1810 int hci_get_dev_info(void __user *arg); 1811 int hci_get_conn_list(void __user *arg); 1812 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1813 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1814 int hci_inquiry(void __user *arg); 1815 1816 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1817 bdaddr_t *bdaddr, u8 type); 1818 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1819 struct list_head *list, bdaddr_t *bdaddr, 1820 u8 type); 1821 struct bdaddr_list_with_flags * 1822 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1823 u8 type); 1824 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1825 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1826 u8 type, u8 *peer_irk, u8 *local_irk); 1827 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1828 u8 type, u32 flags); 1829 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1830 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1831 u8 type); 1832 void hci_bdaddr_list_clear(struct list_head *list); 1833 1834 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1835 bdaddr_t *addr, u8 addr_type); 1836 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1837 bdaddr_t *addr, u8 addr_type); 1838 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1839 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1840 void hci_conn_params_free(struct hci_conn_params *param); 1841 1842 void hci_pend_le_list_del_init(struct hci_conn_params *param); 1843 void hci_pend_le_list_add(struct hci_conn_params *param, 1844 struct list_head *list); 1845 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1846 bdaddr_t *addr, 1847 u8 addr_type); 1848 1849 void hci_uuids_clear(struct hci_dev *hdev); 1850 1851 void hci_link_keys_clear(struct hci_dev *hdev); 1852 u8 *hci_conn_key_enc_size(struct hci_conn *conn); 1853 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1854 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1855 bdaddr_t *bdaddr, u8 *val, u8 type, 1856 u8 pin_len, bool *persistent); 1857 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1858 u8 addr_type, u8 type, u8 authenticated, 1859 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1860 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1861 u8 addr_type, u8 role); 1862 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1863 void hci_smp_ltks_clear(struct hci_dev *hdev); 1864 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1865 1866 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1867 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1868 u8 addr_type); 1869 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1870 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1871 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1872 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1873 void hci_blocked_keys_clear(struct hci_dev *hdev); 1874 void hci_smp_irks_clear(struct hci_dev *hdev); 1875 1876 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1877 1878 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1879 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1880 bdaddr_t *bdaddr, u8 bdaddr_type); 1881 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1882 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1883 u8 *hash256, u8 *rand256); 1884 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1885 u8 bdaddr_type); 1886 1887 void hci_adv_instances_clear(struct hci_dev *hdev); 1888 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1889 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid); 1890 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1891 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, 1892 u32 flags, u16 adv_data_len, u8 *adv_data, 1893 u16 scan_rsp_len, u8 *scan_rsp_data, 1894 u16 timeout, u16 duration, s8 tx_power, 1895 u32 min_interval, u32 max_interval, 1896 u8 mesh_handle); 1897 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid, 1898 u32 flags, u8 data_len, u8 *data, 1899 u32 min_interval, u32 max_interval); 1900 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1901 u16 adv_data_len, u8 *adv_data, 1902 u16 scan_rsp_len, u8 *scan_rsp_data); 1903 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1904 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1905 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1906 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1907 1908 void hci_adv_monitors_clear(struct hci_dev *hdev); 1909 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1910 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1911 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); 1912 int hci_remove_all_adv_monitor(struct hci_dev *hdev); 1913 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1914 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1915 1916 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1917 1918 void hci_init_sysfs(struct hci_dev *hdev); 1919 void hci_conn_init_sysfs(struct hci_conn *conn); 1920 void hci_conn_add_sysfs(struct hci_conn *conn); 1921 void hci_conn_del_sysfs(struct hci_conn *conn); 1922 1923 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1924 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) 1925 1926 /* ----- LMP capabilities ----- */ 1927 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1928 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1929 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1930 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1931 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1932 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO) 1933 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1934 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1935 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1936 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1937 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1938 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1939 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1940 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1941 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1942 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1943 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1944 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1945 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1946 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1947 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1948 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1949 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1950 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1951 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1952 1953 /* ----- Extended LMP capabilities ----- */ 1954 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1955 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1956 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1957 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1958 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1959 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1960 1961 /* ----- Host capabilities ----- */ 1962 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1963 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1964 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1965 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1966 1967 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1968 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1969 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1970 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1971 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1972 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1973 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1974 !adv->rpa_expired) 1975 #define le_enabled(dev) (lmp_le_capable(dev) && \ 1976 hci_dev_test_flag(dev, HCI_LE_ENABLED)) 1977 1978 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1979 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1980 1981 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) 1982 1983 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1984 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1985 1986 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ 1987 !hci_test_quirk((dev), \ 1988 HCI_QUIRK_BROKEN_LE_CODED)) 1989 1990 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1991 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1992 1993 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1994 #define ll_privacy_enabled(dev) (le_enabled(dev) && ll_privacy_capable(dev)) 1995 1996 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \ 1997 ((dev)->commands[39] & 0x04)) 1998 1999 #define read_key_size_capable(dev) \ 2000 ((dev)->commands[20] & 0x10 && \ 2001 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE)) 2002 2003 #define read_voice_setting_capable(dev) \ 2004 ((dev)->commands[9] & 0x04 && \ 2005 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_VOICE_SETTING)) 2006 2007 /* Use enhanced synchronous connection if command is supported and its quirk 2008 * has not been set. 2009 */ 2010 #define enhanced_sync_conn_capable(dev) \ 2011 (((dev)->commands[29] & 0x08) && \ 2012 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN)) 2013 2014 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 2015 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 2016 ((dev)->commands[37] & 0x40) && \ 2017 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_SCAN)) 2018 2019 /* Use ext create connection if command is supported */ 2020 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \ 2021 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2022 /* Extended advertising support */ 2023 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 2024 2025 /* Maximum advertising length */ 2026 #define max_adv_len(dev) \ 2027 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) 2028 2029 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 2030 * 2031 * C24: Mandatory if the LE Controller supports Connection State and either 2032 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 2033 */ 2034 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \ 2035 ext_adv_capable(dev)) && \ 2036 !hci_test_quirk((dev), \ 2037 HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2038 2039 /* Periodic advertising support */ 2040 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) 2041 2042 /* CIS Master/Slave and BIS support */ 2043 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) 2044 #define iso_enabled(dev) (le_enabled(dev) && iso_capable(dev)) 2045 #define cis_capable(dev) \ 2046 (cis_central_capable(dev) || cis_peripheral_capable(dev)) 2047 #define cis_enabled(dev) (le_enabled(dev) && cis_capable(dev)) 2048 #define cis_central_capable(dev) \ 2049 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) 2050 #define cis_central_enabled(dev) \ 2051 (le_enabled(dev) && cis_central_capable(dev)) 2052 #define cis_peripheral_capable(dev) \ 2053 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) 2054 #define cis_peripheral_enabled(dev) \ 2055 (le_enabled(dev) && cis_peripheral_capable(dev)) 2056 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) 2057 #define bis_enabled(dev) (le_enabled(dev) && bis_capable(dev)) 2058 #define sync_recv_capable(dev) \ 2059 ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) 2060 #define sync_recv_enabled(dev) (le_enabled(dev) && sync_recv_capable(dev)) 2061 #define past_sender_capable(dev) \ 2062 ((dev)->le_features[3] & HCI_LE_PAST_SENDER) 2063 #define past_receiver_capable(dev) \ 2064 ((dev)->le_features[3] & HCI_LE_PAST_RECEIVER) 2065 #define past_capable(dev) \ 2066 (past_sender_capable(dev) || past_receiver_capable(dev)) 2067 #define past_sender_enabled(dev) \ 2068 (le_enabled(dev) && past_sender_capable(dev)) 2069 #define past_receiver_enabled(dev) \ 2070 (le_enabled(dev) && past_receiver_capable(dev)) 2071 #define past_enabled(dev) \ 2072 (past_sender_enabled(dev) || past_receiver_enabled(dev)) 2073 #define ll_ext_feature_capable(dev) \ 2074 ((dev)->le_features[7] & HCI_LE_LL_EXT_FEATURE) 2075 2076 /* Channel sounding support */ 2077 #define le_cs_capable(dev) \ 2078 ((dev)->le_features[5] & HCI_LE_CS) 2079 #define le_cs_host_capable(dev) \ 2080 ((dev)->le_features[5] & HCI_LE_CS_HOST) 2081 2082 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ 2083 (!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG))) 2084 2085 /* ----- HCI protocols ----- */ 2086 #define HCI_PROTO_DEFER 0x01 2087 2088 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 2089 __u8 type, __u8 *flags) 2090 { 2091 switch (type) { 2092 case ACL_LINK: 2093 return l2cap_connect_ind(hdev, bdaddr); 2094 2095 case SCO_LINK: 2096 case ESCO_LINK: 2097 return sco_connect_ind(hdev, bdaddr, flags); 2098 2099 case CIS_LINK: 2100 case BIS_LINK: 2101 case PA_LINK: 2102 return iso_connect_ind(hdev, bdaddr, flags); 2103 2104 default: 2105 BT_ERR("unknown link type %d", type); 2106 return -EINVAL; 2107 } 2108 } 2109 2110 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 2111 { 2112 if (conn->type != ACL_LINK && conn->type != LE_LINK) 2113 return HCI_ERROR_REMOTE_USER_TERM; 2114 2115 return l2cap_disconn_ind(conn); 2116 } 2117 2118 /* ----- HCI callbacks ----- */ 2119 struct hci_cb { 2120 struct list_head list; 2121 2122 char *name; 2123 2124 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 2125 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 2126 void (*security_cfm) (struct hci_conn *conn, __u8 status, 2127 __u8 encrypt); 2128 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 2129 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 2130 }; 2131 2132 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 2133 { 2134 struct hci_cb *cb; 2135 2136 mutex_lock(&hci_cb_list_lock); 2137 list_for_each_entry(cb, &hci_cb_list, list) { 2138 if (cb->connect_cfm) 2139 cb->connect_cfm(conn, status); 2140 } 2141 mutex_unlock(&hci_cb_list_lock); 2142 2143 if (conn->connect_cfm_cb) 2144 conn->connect_cfm_cb(conn, status); 2145 } 2146 2147 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 2148 { 2149 struct hci_cb *cb; 2150 2151 mutex_lock(&hci_cb_list_lock); 2152 list_for_each_entry(cb, &hci_cb_list, list) { 2153 if (cb->disconn_cfm) 2154 cb->disconn_cfm(conn, reason); 2155 } 2156 mutex_unlock(&hci_cb_list_lock); 2157 2158 if (conn->disconn_cfm_cb) 2159 conn->disconn_cfm_cb(conn, reason); 2160 } 2161 2162 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 2163 { 2164 struct hci_cb *cb; 2165 __u8 encrypt; 2166 2167 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 2168 return; 2169 2170 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 2171 2172 mutex_lock(&hci_cb_list_lock); 2173 list_for_each_entry(cb, &hci_cb_list, list) { 2174 if (cb->security_cfm) 2175 cb->security_cfm(conn, status, encrypt); 2176 } 2177 mutex_unlock(&hci_cb_list_lock); 2178 2179 if (conn->security_cfm_cb) 2180 conn->security_cfm_cb(conn, status); 2181 } 2182 2183 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 2184 { 2185 struct hci_cb *cb; 2186 __u8 encrypt; 2187 2188 if (conn->state == BT_CONFIG) { 2189 if (!status) 2190 conn->state = BT_CONNECTED; 2191 2192 hci_connect_cfm(conn, status); 2193 hci_conn_drop(conn); 2194 return; 2195 } 2196 2197 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 2198 encrypt = 0x00; 2199 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 2200 encrypt = 0x02; 2201 else 2202 encrypt = 0x01; 2203 2204 if (!status) { 2205 if (conn->sec_level == BT_SECURITY_SDP) 2206 conn->sec_level = BT_SECURITY_LOW; 2207 2208 if (conn->pending_sec_level > conn->sec_level) 2209 conn->sec_level = conn->pending_sec_level; 2210 } 2211 2212 mutex_lock(&hci_cb_list_lock); 2213 list_for_each_entry(cb, &hci_cb_list, list) { 2214 if (cb->security_cfm) 2215 cb->security_cfm(conn, status, encrypt); 2216 } 2217 mutex_unlock(&hci_cb_list_lock); 2218 2219 if (conn->security_cfm_cb) 2220 conn->security_cfm_cb(conn, status); 2221 } 2222 2223 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 2224 { 2225 struct hci_cb *cb; 2226 2227 mutex_lock(&hci_cb_list_lock); 2228 list_for_each_entry(cb, &hci_cb_list, list) { 2229 if (cb->key_change_cfm) 2230 cb->key_change_cfm(conn, status); 2231 } 2232 mutex_unlock(&hci_cb_list_lock); 2233 } 2234 2235 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 2236 __u8 role) 2237 { 2238 struct hci_cb *cb; 2239 2240 mutex_lock(&hci_cb_list_lock); 2241 list_for_each_entry(cb, &hci_cb_list, list) { 2242 if (cb->role_switch_cfm) 2243 cb->role_switch_cfm(conn, status, role); 2244 } 2245 mutex_unlock(&hci_cb_list_lock); 2246 } 2247 2248 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 2249 { 2250 if (addr_type != ADDR_LE_DEV_RANDOM) 2251 return false; 2252 2253 if ((bdaddr->b[5] & 0xc0) == 0x40) 2254 return true; 2255 2256 return false; 2257 } 2258 2259 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 2260 { 2261 if (addr_type == ADDR_LE_DEV_PUBLIC) 2262 return true; 2263 2264 /* Check for Random Static address type */ 2265 if ((addr->b[5] & 0xc0) == 0xc0) 2266 return true; 2267 2268 return false; 2269 } 2270 2271 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 2272 bdaddr_t *bdaddr, u8 addr_type) 2273 { 2274 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 2275 return NULL; 2276 2277 return hci_find_irk_by_rpa(hdev, bdaddr); 2278 } 2279 2280 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 2281 u16 to_multiplier) 2282 { 2283 u16 max_latency; 2284 2285 if (min > max) { 2286 BT_WARN("min %d > max %d", min, max); 2287 return -EINVAL; 2288 } 2289 2290 if (min < 6) { 2291 BT_WARN("min %d < 6", min); 2292 return -EINVAL; 2293 } 2294 2295 if (max > 3200) { 2296 BT_WARN("max %d > 3200", max); 2297 return -EINVAL; 2298 } 2299 2300 if (to_multiplier < 10) { 2301 BT_WARN("to_multiplier %d < 10", to_multiplier); 2302 return -EINVAL; 2303 } 2304 2305 if (to_multiplier > 3200) { 2306 BT_WARN("to_multiplier %d > 3200", to_multiplier); 2307 return -EINVAL; 2308 } 2309 2310 if (max >= to_multiplier * 8) { 2311 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); 2312 return -EINVAL; 2313 } 2314 2315 max_latency = (to_multiplier * 4 / max) - 1; 2316 if (latency > 499) { 2317 BT_WARN("latency %d > 499", latency); 2318 return -EINVAL; 2319 } 2320 2321 if (latency > max_latency) { 2322 BT_WARN("latency %d > max_latency %d", latency, max_latency); 2323 return -EINVAL; 2324 } 2325 2326 return 0; 2327 } 2328 2329 int hci_register_cb(struct hci_cb *hcb); 2330 int hci_unregister_cb(struct hci_cb *hcb); 2331 2332 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 2333 const void *param); 2334 2335 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 2336 const void *param); 2337 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 2338 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 2339 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); 2340 2341 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 2342 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); 2343 2344 u32 hci_conn_get_phy(struct hci_conn *conn); 2345 int hci_conn_set_phy(struct hci_conn *conn, u32 phys); 2346 2347 /* ----- HCI Sockets ----- */ 2348 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 2349 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 2350 int flag, struct sock *skip_sk); 2351 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 2352 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 2353 void *data, u16 data_len, ktime_t tstamp, 2354 int flag, struct sock *skip_sk); 2355 2356 void hci_sock_dev_event(struct hci_dev *hdev, int event); 2357 2358 #define HCI_MGMT_VAR_LEN BIT(0) 2359 #define HCI_MGMT_NO_HDEV BIT(1) 2360 #define HCI_MGMT_UNTRUSTED BIT(2) 2361 #define HCI_MGMT_UNCONFIGURED BIT(3) 2362 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 2363 2364 struct hci_mgmt_handler { 2365 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2366 u16 data_len); 2367 size_t data_len; 2368 unsigned long flags; 2369 }; 2370 2371 struct hci_mgmt_chan { 2372 struct list_head list; 2373 unsigned short channel; 2374 size_t handler_count; 2375 const struct hci_mgmt_handler *handlers; 2376 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 2377 }; 2378 2379 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 2380 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 2381 2382 /* Management interface */ 2383 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 2384 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 2385 BIT(BDADDR_LE_RANDOM)) 2386 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 2387 BIT(BDADDR_LE_PUBLIC) | \ 2388 BIT(BDADDR_LE_RANDOM)) 2389 2390 /* These LE scan and inquiry parameters were chosen according to LE General 2391 * Discovery Procedure specification. 2392 */ 2393 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ 2394 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ 2395 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ 2396 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ 2397 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ 2398 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ 2399 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ 2400 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ 2401 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ 2402 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ 2403 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ 2404 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ 2405 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ 2406 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ 2407 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ 2408 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ 2409 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 2410 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 2411 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 2412 #define DISCOV_BREDR_INQUIRY_LEN 0x08 2413 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 2414 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 2415 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 2416 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ 2417 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ 2418 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ 2419 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ 2420 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) 2421 2422 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 2423 2424 void mgmt_fill_version_info(void *ver); 2425 int mgmt_new_settings(struct hci_dev *hdev); 2426 void mgmt_index_added(struct hci_dev *hdev); 2427 void mgmt_index_removed(struct hci_dev *hdev); 2428 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 2429 void mgmt_power_on(struct hci_dev *hdev, int err); 2430 void __mgmt_power_off(struct hci_dev *hdev); 2431 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 2432 bool persistent); 2433 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 2434 u8 *name, u8 name_len); 2435 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 2436 u8 link_type, u8 addr_type, u8 reason, 2437 bool mgmt_connected); 2438 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 2439 u8 link_type, u8 addr_type, u8 status); 2440 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, 2441 u8 status); 2442 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 2443 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2444 u8 status); 2445 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2446 u8 status); 2447 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2448 u8 link_type, u8 addr_type, u32 value, 2449 u8 confirm_hint); 2450 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2451 u8 link_type, u8 addr_type, u8 status); 2452 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2453 u8 link_type, u8 addr_type, u8 status); 2454 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2455 u8 link_type, u8 addr_type); 2456 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2457 u8 link_type, u8 addr_type, u8 status); 2458 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2459 u8 link_type, u8 addr_type, u8 status); 2460 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 2461 u8 link_type, u8 addr_type, u32 passkey, 2462 u8 entered); 2463 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 2464 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 2465 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 2466 u8 status); 2467 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 2468 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2469 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 2470 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, 2471 u64 instant); 2472 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2473 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 2474 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 2475 void mgmt_suspending(struct hci_dev *hdev, u8 state); 2476 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 2477 u8 addr_type); 2478 bool mgmt_powering_down(struct hci_dev *hdev); 2479 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 2480 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 2481 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 2482 bool persistent); 2483 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 2484 u8 bdaddr_type, u8 store_hint, u16 min_interval, 2485 u16 max_interval, u16 latency, u16 timeout); 2486 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 2487 bool mgmt_get_connectable(struct hci_dev *hdev); 2488 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 2489 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 2490 u8 instance); 2491 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 2492 u8 instance); 2493 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 2494 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, 2495 bdaddr_t *bdaddr, u8 addr_type); 2496 2497 int hci_abort_conn(struct hci_conn *conn, u8 reason); 2498 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 2499 u16 to_multiplier); 2500 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 2501 __u8 ltk[16], __u8 key_size); 2502 2503 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 2504 u8 *bdaddr_type); 2505 2506 #define SCO_AIRMODE_MASK 0x0003 2507 #define SCO_AIRMODE_CVSD 0x0000 2508 #define SCO_AIRMODE_TRANSP 0x0003 2509 2510 #define LOCAL_CODEC_ACL_MASK BIT(0) 2511 #define LOCAL_CODEC_SCO_MASK BIT(1) 2512 2513 #define TRANSPORT_TYPE_MAX 0x04 2514 2515 #endif /* __HCI_CORE_H */ 2516