1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 BlueZ - Bluetooth protocol stack for Linux 4 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 5 Copyright 2023-2024 NXP 6 7 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 8 9 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 10 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 11 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 12 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 13 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 14 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 18 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 19 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 20 SOFTWARE IS DISCLAIMED. 21 */ 22 23 #ifndef __HCI_CORE_H 24 #define __HCI_CORE_H 25 26 #include <linux/idr.h> 27 #include <linux/leds.h> 28 #include <linux/rculist.h> 29 #include <linux/spinlock.h> 30 #include <linux/srcu.h> 31 32 #include <net/bluetooth/hci.h> 33 #include <net/bluetooth/hci_drv.h> 34 #include <net/bluetooth/hci_sync.h> 35 #include <net/bluetooth/hci_sock.h> 36 #include <net/bluetooth/coredump.h> 37 38 /* HCI priority */ 39 #define HCI_PRIO_MAX 7 40 41 /* HCI maximum id value */ 42 #define HCI_MAX_ID 10000 43 44 /* HCI Core structures */ 45 struct inquiry_data { 46 bdaddr_t bdaddr; 47 __u8 pscan_rep_mode; 48 __u8 pscan_period_mode; 49 __u8 pscan_mode; 50 __u8 dev_class[3]; 51 __le16 clock_offset; 52 __s8 rssi; 53 __u8 ssp_mode; 54 }; 55 56 struct inquiry_entry { 57 struct list_head all; /* inq_cache.all */ 58 struct list_head list; /* unknown or resolve */ 59 enum { 60 NAME_NOT_KNOWN, 61 NAME_NEEDED, 62 NAME_PENDING, 63 NAME_KNOWN, 64 } name_state; 65 unsigned long timestamp; 66 struct inquiry_data data; 67 }; 68 69 struct discovery_state { 70 int type; 71 enum { 72 DISCOVERY_STOPPED, 73 DISCOVERY_STARTING, 74 DISCOVERY_FINDING, 75 DISCOVERY_RESOLVING, 76 DISCOVERY_STOPPING, 77 } state; 78 struct list_head all; /* All devices found during inquiry */ 79 struct list_head unknown; /* Name state not known */ 80 struct list_head resolve; /* Name needs to be resolved */ 81 unsigned long timestamp; 82 bdaddr_t last_adv_addr; 83 u8 last_adv_addr_type; 84 s8 last_adv_rssi; 85 u32 last_adv_flags; 86 u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH]; 87 u8 last_adv_data_len; 88 bool report_invalid_rssi; 89 bool result_filtering; 90 bool limited; 91 s8 rssi; 92 u16 uuid_count; 93 u8 (*uuids)[16]; 94 unsigned long name_resolve_timeout; 95 spinlock_t lock; 96 }; 97 98 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 99 100 enum suspend_tasks { 101 SUSPEND_PAUSE_DISCOVERY, 102 SUSPEND_UNPAUSE_DISCOVERY, 103 104 SUSPEND_PAUSE_ADVERTISING, 105 SUSPEND_UNPAUSE_ADVERTISING, 106 107 SUSPEND_SCAN_DISABLE, 108 SUSPEND_SCAN_ENABLE, 109 SUSPEND_DISCONNECTING, 110 111 SUSPEND_POWERING_DOWN, 112 113 SUSPEND_PREPARE_NOTIFIER, 114 115 SUSPEND_SET_ADV_FILTER, 116 __SUSPEND_NUM_TASKS 117 }; 118 119 enum suspended_state { 120 BT_RUNNING = 0, 121 BT_SUSPEND_DISCONNECT, 122 BT_SUSPEND_CONFIGURE_WAKE, 123 }; 124 125 struct hci_conn_hash { 126 struct list_head list; 127 unsigned int acl_num; 128 unsigned int sco_num; 129 unsigned int cis_num; 130 unsigned int bis_num; 131 unsigned int pa_num; 132 unsigned int le_num; 133 unsigned int le_num_peripheral; 134 }; 135 136 struct bdaddr_list { 137 struct list_head list; 138 bdaddr_t bdaddr; 139 u8 bdaddr_type; 140 }; 141 142 struct codec_list { 143 struct list_head list; 144 u8 id; 145 __u16 cid; 146 __u16 vid; 147 u8 transport; 148 u8 num_caps; 149 u32 len; 150 struct hci_codec_caps caps[]; 151 }; 152 153 struct bdaddr_list_with_irk { 154 struct list_head list; 155 bdaddr_t bdaddr; 156 u8 bdaddr_type; 157 u8 peer_irk[16]; 158 u8 local_irk[16]; 159 }; 160 161 /* Bitmask of connection flags */ 162 enum hci_conn_flags { 163 HCI_CONN_FLAG_REMOTE_WAKEUP = BIT(0), 164 HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1), 165 HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(2), 166 HCI_CONN_FLAG_PAST = BIT(3), 167 }; 168 typedef u8 hci_conn_flags_t; 169 170 struct bdaddr_list_with_flags { 171 struct list_head list; 172 bdaddr_t bdaddr; 173 u8 bdaddr_type; 174 hci_conn_flags_t flags; 175 }; 176 177 struct bt_uuid { 178 struct list_head list; 179 u8 uuid[16]; 180 u8 size; 181 u8 svc_hint; 182 }; 183 184 struct blocked_key { 185 struct list_head list; 186 struct rcu_head rcu; 187 u8 type; 188 u8 val[16]; 189 }; 190 191 struct smp_csrk { 192 bdaddr_t bdaddr; 193 u8 bdaddr_type; 194 u8 type; 195 u8 val[16]; 196 }; 197 198 struct smp_ltk { 199 struct list_head list; 200 struct rcu_head rcu; 201 bdaddr_t bdaddr; 202 u8 bdaddr_type; 203 u8 authenticated; 204 u8 type; 205 u8 enc_size; 206 __le16 ediv; 207 __le64 rand; 208 u8 val[16]; 209 }; 210 211 struct smp_irk { 212 struct list_head list; 213 struct rcu_head rcu; 214 bdaddr_t rpa; 215 bdaddr_t bdaddr; 216 u8 addr_type; 217 u8 val[16]; 218 }; 219 220 struct link_key { 221 struct list_head list; 222 struct rcu_head rcu; 223 bdaddr_t bdaddr; 224 u8 type; 225 u8 val[HCI_LINK_KEY_SIZE]; 226 u8 pin_len; 227 }; 228 229 struct oob_data { 230 struct list_head list; 231 bdaddr_t bdaddr; 232 u8 bdaddr_type; 233 u8 present; 234 u8 hash192[16]; 235 u8 rand192[16]; 236 u8 hash256[16]; 237 u8 rand256[16]; 238 }; 239 240 struct adv_info { 241 struct list_head list; 242 bool enabled; 243 bool pending; 244 bool periodic; 245 bool periodic_enabled; 246 __u8 mesh; 247 __u8 instance; 248 __u8 handle; 249 __u8 sid; 250 __u32 flags; 251 __u16 timeout; 252 __u16 remaining_time; 253 __u16 duration; 254 __u16 adv_data_len; 255 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 256 bool adv_data_changed; 257 __u16 scan_rsp_len; 258 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 259 bool scan_rsp_changed; 260 __u16 per_adv_data_len; 261 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 262 __s8 tx_power; 263 __u32 min_interval; 264 __u32 max_interval; 265 bdaddr_t random_addr; 266 bool rpa_expired; 267 struct delayed_work rpa_expired_cb; 268 }; 269 270 struct tx_queue { 271 struct sk_buff_head queue; 272 unsigned int extra; 273 unsigned int tracked; 274 }; 275 276 #define HCI_MAX_ADV_INSTANCES 5 277 #define HCI_DEFAULT_ADV_DURATION 2 278 279 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 280 281 #define DATA_CMP(_d1, _l1, _d2, _l2) \ 282 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) 283 284 #define ADV_DATA_CMP(_adv, _data, _len) \ 285 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) 286 287 #define SCAN_RSP_CMP(_adv, _data, _len) \ 288 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) 289 290 struct monitored_device { 291 struct list_head list; 292 293 bdaddr_t bdaddr; 294 __u8 addr_type; 295 __u16 handle; 296 bool notified; 297 }; 298 299 struct adv_pattern { 300 struct list_head list; 301 __u8 ad_type; 302 __u8 offset; 303 __u8 length; 304 __u8 value[HCI_MAX_EXT_AD_LENGTH]; 305 }; 306 307 struct adv_rssi_thresholds { 308 __s8 low_threshold; 309 __s8 high_threshold; 310 __u16 low_threshold_timeout; 311 __u16 high_threshold_timeout; 312 __u8 sampling_period; 313 }; 314 315 struct adv_monitor { 316 struct list_head patterns; 317 struct adv_rssi_thresholds rssi; 318 __u16 handle; 319 320 enum { 321 ADV_MONITOR_STATE_NOT_REGISTERED, 322 ADV_MONITOR_STATE_REGISTERED, 323 ADV_MONITOR_STATE_OFFLOADED 324 } state; 325 }; 326 327 #define HCI_MIN_ADV_MONITOR_HANDLE 1 328 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 329 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 330 #define HCI_ADV_MONITOR_EXT_NONE 1 331 #define HCI_ADV_MONITOR_EXT_MSFT 2 332 333 #define HCI_MAX_SHORT_NAME_LENGTH 10 334 335 #define HCI_CONN_HANDLE_MAX 0x0eff 336 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) 337 338 /* Min encryption key size to match with SMP */ 339 #define HCI_MIN_ENC_KEY_SIZE 7 340 341 /* Default LE RPA expiry time, 15 minutes */ 342 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 343 344 /* Default min/max age of connection information (1s/3s) */ 345 #define DEFAULT_CONN_INFO_MIN_AGE 1000 346 #define DEFAULT_CONN_INFO_MAX_AGE 3000 347 /* Default authenticated payload timeout 30s */ 348 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 349 350 #define HCI_MAX_PAGES 3 351 352 struct hci_dev { 353 struct list_head list; 354 struct srcu_struct srcu; 355 struct mutex lock; 356 357 struct ida unset_handle_ida; 358 359 const char *name; 360 unsigned long flags; 361 __u16 id; 362 __u8 bus; 363 bdaddr_t bdaddr; 364 bdaddr_t setup_addr; 365 bdaddr_t public_addr; 366 bdaddr_t random_addr; 367 bdaddr_t static_addr; 368 __u8 adv_addr_type; 369 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 370 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 371 __u8 eir[HCI_MAX_EIR_LENGTH]; 372 __u16 appearance; 373 __u8 dev_class[3]; 374 __u8 major_class; 375 __u8 minor_class; 376 __u8 max_page; 377 __u8 features[HCI_MAX_PAGES][8]; 378 __u8 le_features[248]; 379 __u8 le_accept_list_size; 380 __u8 le_resolv_list_size; 381 __u8 le_num_of_adv_sets; 382 __u8 le_states[8]; 383 __u8 mesh_ad_types[16]; 384 __u8 mesh_send_ref; 385 __u8 commands[64]; 386 __u8 hci_ver; 387 __u16 hci_rev; 388 __u8 lmp_ver; 389 __u16 manufacturer; 390 __u16 lmp_subver; 391 __u16 voice_setting; 392 __u8 num_iac; 393 __u16 stored_max_keys; 394 __u16 stored_num_keys; 395 __u8 io_capability; 396 __s8 inq_tx_power; 397 __u8 err_data_reporting; 398 __u16 page_scan_interval; 399 __u16 page_scan_window; 400 __u8 page_scan_type; 401 __u8 le_adv_channel_map; 402 __u16 le_adv_min_interval; 403 __u16 le_adv_max_interval; 404 __u8 le_scan_type; 405 __u16 le_scan_interval; 406 __u16 le_scan_window; 407 __u16 le_scan_int_suspend; 408 __u16 le_scan_window_suspend; 409 __u16 le_scan_int_discovery; 410 __u16 le_scan_window_discovery; 411 __u16 le_scan_int_adv_monitor; 412 __u16 le_scan_window_adv_monitor; 413 __u16 le_scan_int_connect; 414 __u16 le_scan_window_connect; 415 __u16 le_conn_min_interval; 416 __u16 le_conn_max_interval; 417 __u16 le_conn_latency; 418 __u16 le_supv_timeout; 419 __u16 le_min_rate_interval; 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 mutex remote_oob_lock; 566 struct list_head remote_oob_data; 567 struct list_head le_accept_list; 568 struct list_head le_resolv_list; 569 struct list_head le_conn_params; 570 struct list_head pend_le_conns; 571 struct list_head pend_le_reports; 572 struct list_head blocked_keys; 573 struct list_head local_codecs; 574 575 struct hci_dev_stats stat; 576 577 atomic_t promisc; 578 579 const char *hw_info; 580 const char *fw_info; 581 struct dentry *debugfs; 582 583 struct hci_devcoredump dump; 584 585 struct device dev; 586 587 struct rfkill *rfkill; 588 589 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 590 hci_conn_flags_t conn_flags; 591 592 __s8 adv_tx_power; 593 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 594 __u8 adv_data_len; 595 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 596 __u8 scan_rsp_data_len; 597 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 598 __u8 per_adv_data_len; 599 600 struct list_head adv_instances; 601 unsigned int adv_instance_cnt; 602 __u8 cur_adv_instance; 603 __u16 adv_instance_timeout; 604 struct delayed_work adv_instance_expire; 605 606 struct idr adv_monitors_idr; 607 unsigned int adv_monitors_cnt; 608 609 __u8 irk[16]; 610 __u32 rpa_timeout; 611 struct delayed_work rpa_expired; 612 bdaddr_t rpa; 613 614 struct delayed_work mesh_send_done; 615 616 enum { 617 INTERLEAVE_SCAN_NONE, 618 INTERLEAVE_SCAN_NO_FILTER, 619 INTERLEAVE_SCAN_ALLOWLIST 620 } interleave_scan_state; 621 622 struct delayed_work interleave_scan; 623 624 struct list_head monitored_devices; 625 bool advmon_pend_notify; 626 627 struct hci_drv *hci_drv; 628 629 #if IS_ENABLED(CONFIG_BT_LEDS) 630 struct led_trigger *power_led; 631 #endif 632 633 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 634 __u16 msft_opcode; 635 void *msft_data; 636 bool msft_curve_validity; 637 #endif 638 639 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 640 bool aosp_capable; 641 bool aosp_quality_report; 642 #endif 643 644 int (*open)(struct hci_dev *hdev); 645 int (*close)(struct hci_dev *hdev); 646 int (*flush)(struct hci_dev *hdev); 647 int (*setup)(struct hci_dev *hdev); 648 int (*shutdown)(struct hci_dev *hdev); 649 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 650 /* Handle HCI_EV_VENDOR; return true if handled, false otherwise */ 651 bool (*handle_ev_vendor)(struct hci_dev *hdev, struct sk_buff *skb); 652 void (*notify)(struct hci_dev *hdev, unsigned int evt); 653 void (*hw_error)(struct hci_dev *hdev, u8 code); 654 int (*post_init)(struct hci_dev *hdev); 655 int (*set_diag)(struct hci_dev *hdev, bool enable); 656 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 657 void (*reset)(struct hci_dev *hdev); 658 bool (*wakeup)(struct hci_dev *hdev); 659 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 660 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 661 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 662 struct bt_codec *codec, __u8 *vnd_len, 663 __u8 **vnd_data); 664 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); 665 }; 666 667 #define hci_set_quirk(hdev, nr) set_bit((nr), (hdev)->quirk_flags) 668 #define hci_clear_quirk(hdev, nr) clear_bit((nr), (hdev)->quirk_flags) 669 #define hci_test_quirk(hdev, nr) test_bit((nr), (hdev)->quirk_flags) 670 671 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 672 673 enum conn_reasons { 674 CONN_REASON_PAIR_DEVICE, 675 CONN_REASON_L2CAP_CHAN, 676 CONN_REASON_SCO_CONNECT, 677 CONN_REASON_ISO_CONNECT, 678 }; 679 680 struct hci_conn { 681 struct list_head list; 682 683 atomic_t refcnt; 684 685 bdaddr_t dst; 686 __u8 dst_type; 687 bdaddr_t src; 688 __u8 src_type; 689 bdaddr_t init_addr; 690 __u8 init_addr_type; 691 bdaddr_t resp_addr; 692 __u8 resp_addr_type; 693 __u8 adv_instance; 694 __u16 handle; 695 __u16 sync_handle; 696 __u8 sid; 697 __u16 state; 698 __u16 mtu; 699 __u8 mode; 700 __u8 type; 701 __u8 role; 702 bool out; 703 __u8 attempt; 704 __u8 dev_class[3]; 705 __u8 features[HCI_MAX_PAGES][8]; 706 __u8 le_features[248]; 707 __u16 pkt_type; 708 __u16 link_policy; 709 __u8 key_type; 710 __u8 auth_type; 711 __u8 sec_level; 712 __u8 pending_sec_level; 713 __u8 pin_length; 714 __u8 enc_key_size; 715 __u8 io_capability; 716 __u32 passkey_notify; 717 __u8 passkey_entered; 718 __u16 disc_timeout; 719 __u16 conn_timeout; 720 __u16 setting; 721 __u16 auth_payload_timeout; 722 __u16 le_conn_min_interval; 723 __u16 le_conn_max_interval; 724 __u16 le_conn_interval; 725 __u16 le_conn_latency; 726 __u16 le_supv_timeout; 727 __u16 le_rate_interval; 728 __u16 le_subrate; 729 __u16 le_rate_latency; 730 __u16 le_cont_num; 731 __u16 le_rate_supv_timeout; 732 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; 733 __u8 le_adv_data_len; 734 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; 735 __u16 le_per_adv_data_len; 736 __u16 le_per_adv_data_offset; 737 __u8 le_adv_phy; 738 __u8 le_adv_sec_phy; 739 __u8 le_tx_def_phys; 740 __u8 le_rx_def_phys; 741 __u8 le_tx_phy; 742 __u8 le_rx_phy; 743 __s8 rssi; 744 __s8 tx_power; 745 __s8 max_tx_power; 746 struct bt_iso_qos iso_qos; 747 __u8 num_bis; 748 __u8 bis[HCI_MAX_ISO_BIS]; 749 750 unsigned long flags; 751 752 enum conn_reasons conn_reason; 753 __u8 abort_reason; 754 755 __u32 clock; 756 __u16 clock_accuracy; 757 758 unsigned long conn_info_timestamp; 759 760 __u8 remote_cap; 761 __u8 remote_auth; 762 763 unsigned int sent; 764 765 struct sk_buff_head data_q; 766 struct list_head chan_list; 767 768 struct tx_queue tx_q; 769 770 struct delayed_work disc_work; 771 struct delayed_work auto_accept_work; 772 struct delayed_work idle_work; 773 struct delayed_work le_conn_timeout; 774 775 struct device dev; 776 struct dentry *debugfs; 777 778 struct hci_dev *hdev; 779 780 spinlock_t proto_lock; /* lock guarding protocol data */ 781 void *l2cap_data __guarded_by(&proto_lock, &hdev->lock); 782 void *sco_data; 783 void *iso_data __guarded_by(&proto_lock); 784 785 struct list_head link_list; 786 struct hci_conn *parent; 787 struct hci_link *link; 788 789 struct bt_codec codec; 790 791 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 792 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 793 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 794 795 void (*cleanup)(struct hci_conn *conn); 796 }; 797 798 struct hci_link { 799 struct list_head list; 800 struct hci_conn *conn; 801 }; 802 803 struct hci_chan { 804 struct list_head list; 805 __u16 handle; 806 struct hci_conn *conn; 807 struct sk_buff_head data_q; 808 unsigned int sent; 809 __u8 state; 810 }; 811 812 struct hci_conn_params { 813 struct list_head list; 814 struct list_head action; 815 816 bdaddr_t addr; 817 u8 addr_type; 818 819 u16 conn_min_interval; 820 u16 conn_max_interval; 821 u16 conn_latency; 822 u16 supervision_timeout; 823 824 u16 rate_min_interval; 825 u16 rate_max_interval; 826 u16 subrate_min; 827 u16 subrate_max; 828 u16 max_latency; 829 u16 cont_num; 830 u16 rate_supv_timeout; 831 832 enum { 833 HCI_AUTO_CONN_DISABLED, 834 HCI_AUTO_CONN_REPORT, 835 HCI_AUTO_CONN_DIRECT, 836 HCI_AUTO_CONN_ALWAYS, 837 HCI_AUTO_CONN_LINK_LOSS, 838 HCI_AUTO_CONN_EXPLICIT, 839 } auto_connect; 840 841 struct hci_conn *conn; 842 bool explicit_connect; 843 /* Accessed without hdev->lock: */ 844 hci_conn_flags_t flags; 845 u8 privacy_mode; 846 }; 847 848 extern struct list_head hci_dev_list; 849 extern struct list_head hci_cb_list; 850 extern rwlock_t hci_dev_list_lock; 851 extern struct mutex hci_cb_list_lock; 852 853 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 854 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 855 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 856 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 857 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 858 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 859 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 860 861 #define hci_dev_clear_volatile_flags(hdev) \ 862 do { \ 863 hci_dev_clear_flag((hdev), HCI_LE_SCAN); \ 864 hci_dev_clear_flag((hdev), HCI_LE_ADV); \ 865 hci_dev_clear_flag((hdev), HCI_LL_RPA_RESOLUTION); \ 866 hci_dev_clear_flag((hdev), HCI_PERIODIC_INQ); \ 867 hci_dev_clear_flag((hdev), HCI_QUALITY_REPORT); \ 868 } while (0) 869 870 #define hci_dev_le_state_simultaneous(hdev) \ 871 (!hci_test_quirk((hdev), HCI_QUIRK_BROKEN_LE_STATES) && \ 872 ((hdev)->le_states[4] & 0x08) && /* Central */ \ 873 ((hdev)->le_states[4] & 0x40) && /* Peripheral */ \ 874 ((hdev)->le_states[3] & 0x10)) /* Simultaneous */ 875 876 /* ----- HCI interface to upper protocols ----- */ 877 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 878 int l2cap_disconn_ind(struct hci_conn *hcon); 879 int l2cap_recv_acldata(struct hci_dev *hdev, u16 handle, struct sk_buff *skb, 880 u16 flags); 881 882 #if IS_ENABLED(CONFIG_BT_BREDR) 883 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 884 int sco_recv_scodata(struct hci_dev *hdev, u16 handle, struct sk_buff *skb); 885 #else 886 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 887 __u8 *flags) 888 { 889 return 0; 890 } 891 892 static inline int sco_recv_scodata(struct hci_dev *hdev, u16 handle, 893 struct sk_buff *skb) 894 { 895 kfree_skb(skb); 896 return -ENOENT; 897 } 898 #endif 899 900 #if IS_ENABLED(CONFIG_BT_LE) 901 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 902 int iso_recv(struct hci_dev *hdev, u16 handle, struct sk_buff *skb, 903 u16 flags); 904 #else 905 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 906 __u8 *flags) 907 { 908 return 0; 909 } 910 911 static inline int iso_recv(struct hci_dev *hdev, u16 handle, 912 struct sk_buff *skb, u16 flags) 913 { 914 kfree_skb(skb); 915 return -ENOENT; 916 } 917 #endif 918 919 /* ----- Inquiry cache ----- */ 920 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 921 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 922 923 static inline void discovery_init(struct hci_dev *hdev) 924 { 925 spin_lock_init(&hdev->discovery.lock); 926 hdev->discovery.state = DISCOVERY_STOPPED; 927 INIT_LIST_HEAD(&hdev->discovery.all); 928 INIT_LIST_HEAD(&hdev->discovery.unknown); 929 INIT_LIST_HEAD(&hdev->discovery.resolve); 930 hdev->discovery.report_invalid_rssi = true; 931 hdev->discovery.rssi = HCI_RSSI_INVALID; 932 } 933 934 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 935 { 936 hdev->discovery.result_filtering = false; 937 hdev->discovery.report_invalid_rssi = true; 938 hdev->discovery.rssi = HCI_RSSI_INVALID; 939 940 spin_lock(&hdev->discovery.lock); 941 hdev->discovery.uuid_count = 0; 942 kfree(hdev->discovery.uuids); 943 hdev->discovery.uuids = NULL; 944 spin_unlock(&hdev->discovery.lock); 945 } 946 947 bool hci_discovery_active(struct hci_dev *hdev); 948 949 void hci_discovery_set_state(struct hci_dev *hdev, int state); 950 951 static inline int inquiry_cache_empty(struct hci_dev *hdev) 952 { 953 return list_empty(&hdev->discovery.all); 954 } 955 956 static inline long inquiry_cache_age(struct hci_dev *hdev) 957 { 958 struct discovery_state *c = &hdev->discovery; 959 return jiffies - c->timestamp; 960 } 961 962 static inline long inquiry_entry_age(struct inquiry_entry *e) 963 { 964 return jiffies - e->timestamp; 965 } 966 967 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 968 bdaddr_t *bdaddr); 969 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 970 bdaddr_t *bdaddr); 971 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 972 bdaddr_t *bdaddr, 973 int state); 974 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 975 struct inquiry_entry *ie); 976 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 977 bool name_known); 978 void hci_inquiry_cache_flush(struct hci_dev *hdev); 979 980 /* ----- HCI Connections ----- */ 981 enum { 982 HCI_CONN_AUTH_PEND, 983 HCI_CONN_ENCRYPT_PEND, 984 HCI_CONN_RSWITCH_PEND, 985 HCI_CONN_MODE_CHANGE_PEND, 986 HCI_CONN_SCO_SETUP_PEND, 987 HCI_CONN_MGMT_CONNECTED, 988 HCI_CONN_SSP_ENABLED, 989 HCI_CONN_SC_ENABLED, 990 HCI_CONN_AES_CCM, 991 HCI_CONN_POWER_SAVE, 992 HCI_CONN_FLUSH_KEY, 993 HCI_CONN_ENCRYPT, 994 HCI_CONN_AUTH, 995 HCI_CONN_SECURE, 996 HCI_CONN_FIPS, 997 HCI_CONN_STK_ENCRYPT, 998 HCI_CONN_AUTH_INITIATOR, 999 HCI_CONN_DROP, 1000 HCI_CONN_CANCEL, 1001 HCI_CONN_PARAM_REMOVAL_PEND, 1002 HCI_CONN_NEW_LINK_KEY, 1003 HCI_CONN_SCANNING, 1004 HCI_CONN_AUTH_FAILURE, 1005 HCI_CONN_PER_ADV, 1006 HCI_CONN_BIG_CREATED, 1007 HCI_CONN_CREATE, 1008 HCI_CONN_CREATE_CIS, 1009 HCI_CONN_CREATE_BIG_SYNC, 1010 HCI_CONN_BIG_SYNC, 1011 HCI_CONN_BIG_SYNC_FAILED, 1012 HCI_CONN_CREATE_PA_SYNC, 1013 HCI_CONN_PA_SYNC, 1014 HCI_CONN_PA_SYNC_FAILED, 1015 }; 1016 1017 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 1018 { 1019 struct hci_dev *hdev = conn->hdev; 1020 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 1021 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 1022 } 1023 1024 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 1025 { 1026 struct hci_dev *hdev = conn->hdev; 1027 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 1028 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 1029 } 1030 1031 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 1032 { 1033 struct hci_conn_hash *h = &hdev->conn_hash; 1034 list_add_tail_rcu(&c->list, &h->list); 1035 switch (c->type) { 1036 case ACL_LINK: 1037 h->acl_num++; 1038 break; 1039 case LE_LINK: 1040 h->le_num++; 1041 if (c->role == HCI_ROLE_SLAVE) 1042 h->le_num_peripheral++; 1043 break; 1044 case SCO_LINK: 1045 case ESCO_LINK: 1046 h->sco_num++; 1047 break; 1048 case CIS_LINK: 1049 h->cis_num++; 1050 break; 1051 case BIS_LINK: 1052 h->bis_num++; 1053 break; 1054 case PA_LINK: 1055 h->pa_num++; 1056 break; 1057 } 1058 } 1059 1060 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 1061 { 1062 struct hci_conn_hash *h = &hdev->conn_hash; 1063 1064 list_del_rcu(&c->list); 1065 synchronize_rcu(); 1066 1067 switch (c->type) { 1068 case ACL_LINK: 1069 h->acl_num--; 1070 break; 1071 case LE_LINK: 1072 h->le_num--; 1073 if (c->role == HCI_ROLE_SLAVE) 1074 h->le_num_peripheral--; 1075 break; 1076 case SCO_LINK: 1077 case ESCO_LINK: 1078 h->sco_num--; 1079 break; 1080 case CIS_LINK: 1081 h->cis_num--; 1082 break; 1083 case BIS_LINK: 1084 h->bis_num--; 1085 break; 1086 case PA_LINK: 1087 h->pa_num--; 1088 break; 1089 } 1090 } 1091 1092 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 1093 { 1094 struct hci_conn_hash *h = &hdev->conn_hash; 1095 switch (type) { 1096 case ACL_LINK: 1097 return h->acl_num; 1098 case LE_LINK: 1099 return h->le_num; 1100 case SCO_LINK: 1101 case ESCO_LINK: 1102 return h->sco_num; 1103 case CIS_LINK: 1104 return h->cis_num; 1105 case BIS_LINK: 1106 return h->bis_num; 1107 case PA_LINK: 1108 return h->pa_num; 1109 default: 1110 return 0; 1111 } 1112 } 1113 1114 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 1115 { 1116 struct hci_conn_hash *c = &hdev->conn_hash; 1117 1118 return c->acl_num + c->sco_num + c->le_num + c->cis_num + c->bis_num + 1119 c->pa_num; 1120 } 1121 1122 static inline unsigned int hci_iso_count(struct hci_dev *hdev) 1123 { 1124 struct hci_conn_hash *c = &hdev->conn_hash; 1125 1126 return c->cis_num + c->bis_num; 1127 } 1128 1129 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) 1130 { 1131 struct hci_conn_hash *h = &hdev->conn_hash; 1132 struct hci_conn *c; 1133 1134 rcu_read_lock(); 1135 1136 list_for_each_entry_rcu(c, &h->list, list) { 1137 if (c == conn) { 1138 rcu_read_unlock(); 1139 return true; 1140 } 1141 } 1142 rcu_read_unlock(); 1143 1144 return false; 1145 } 1146 1147 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 1148 { 1149 struct hci_conn_hash *h = &hdev->conn_hash; 1150 struct hci_conn *c; 1151 __u8 type = INVALID_LINK; 1152 1153 rcu_read_lock(); 1154 1155 list_for_each_entry_rcu(c, &h->list, list) { 1156 if (c->handle == handle) { 1157 type = c->type; 1158 break; 1159 } 1160 } 1161 1162 rcu_read_unlock(); 1163 1164 return type; 1165 } 1166 1167 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, 1168 bdaddr_t *ba, __u8 bis) 1169 { 1170 struct hci_conn_hash *h = &hdev->conn_hash; 1171 struct hci_conn *c; 1172 1173 rcu_read_lock(); 1174 1175 list_for_each_entry_rcu(c, &h->list, list) { 1176 if (bacmp(&c->dst, ba) || c->type != BIS_LINK) 1177 continue; 1178 1179 if (c->iso_qos.bcast.bis == bis) { 1180 rcu_read_unlock(); 1181 return c; 1182 } 1183 } 1184 rcu_read_unlock(); 1185 1186 return NULL; 1187 } 1188 1189 static inline struct hci_conn * 1190 hci_conn_hash_lookup_create_pa_sync(struct hci_dev *hdev) 1191 { 1192 struct hci_conn_hash *h = &hdev->conn_hash; 1193 struct hci_conn *c; 1194 1195 rcu_read_lock(); 1196 1197 list_for_each_entry_rcu(c, &h->list, list) { 1198 if (c->type != PA_LINK) 1199 continue; 1200 1201 if (!test_bit(HCI_CONN_CREATE_PA_SYNC, &c->flags)) 1202 continue; 1203 1204 rcu_read_unlock(); 1205 return c; 1206 } 1207 1208 rcu_read_unlock(); 1209 1210 return NULL; 1211 } 1212 1213 static inline struct hci_conn * 1214 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, 1215 bdaddr_t *ba, 1216 __u8 big, __u8 bis) 1217 { 1218 struct hci_conn_hash *h = &hdev->conn_hash; 1219 struct hci_conn *c; 1220 1221 rcu_read_lock(); 1222 1223 list_for_each_entry_rcu(c, &h->list, list) { 1224 if (bacmp(&c->dst, ba) || c->type != BIS_LINK || 1225 !test_bit(HCI_CONN_PER_ADV, &c->flags)) 1226 continue; 1227 1228 if (c->iso_qos.bcast.big == big && 1229 c->iso_qos.bcast.bis == bis) { 1230 rcu_read_unlock(); 1231 return c; 1232 } 1233 } 1234 rcu_read_unlock(); 1235 1236 return NULL; 1237 } 1238 1239 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1240 __u16 handle) 1241 { 1242 struct hci_conn_hash *h = &hdev->conn_hash; 1243 struct hci_conn *c; 1244 1245 rcu_read_lock(); 1246 1247 list_for_each_entry_rcu(c, &h->list, list) { 1248 if (c->handle == handle) { 1249 rcu_read_unlock(); 1250 return c; 1251 } 1252 } 1253 rcu_read_unlock(); 1254 1255 return NULL; 1256 } 1257 1258 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1259 __u8 type, bdaddr_t *ba) 1260 { 1261 struct hci_conn_hash *h = &hdev->conn_hash; 1262 struct hci_conn *c; 1263 1264 rcu_read_lock(); 1265 1266 list_for_each_entry_rcu(c, &h->list, list) { 1267 if (c->type == type && !bacmp(&c->dst, ba)) { 1268 rcu_read_unlock(); 1269 return c; 1270 } 1271 } 1272 1273 rcu_read_unlock(); 1274 1275 return NULL; 1276 } 1277 1278 static inline struct hci_conn *hci_conn_hash_lookup_role(struct hci_dev *hdev, 1279 __u8 type, __u8 role, 1280 bdaddr_t *ba) 1281 { 1282 struct hci_conn_hash *h = &hdev->conn_hash; 1283 struct hci_conn *c; 1284 1285 rcu_read_lock(); 1286 1287 list_for_each_entry_rcu(c, &h->list, list) { 1288 if (c->type == type && c->role == role && !bacmp(&c->dst, ba)) { 1289 rcu_read_unlock(); 1290 return c; 1291 } 1292 } 1293 1294 rcu_read_unlock(); 1295 1296 return NULL; 1297 } 1298 1299 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1300 bdaddr_t *ba, 1301 __u8 ba_type) 1302 { 1303 struct hci_conn_hash *h = &hdev->conn_hash; 1304 struct hci_conn *c; 1305 1306 rcu_read_lock(); 1307 1308 list_for_each_entry_rcu(c, &h->list, list) { 1309 if (c->type != LE_LINK) 1310 continue; 1311 1312 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1313 rcu_read_unlock(); 1314 return c; 1315 } 1316 } 1317 1318 rcu_read_unlock(); 1319 1320 return NULL; 1321 } 1322 1323 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, 1324 bdaddr_t *ba, 1325 __u8 ba_type, 1326 __u8 cig, 1327 __u8 id) 1328 { 1329 struct hci_conn_hash *h = &hdev->conn_hash; 1330 struct hci_conn *c; 1331 1332 rcu_read_lock(); 1333 1334 list_for_each_entry_rcu(c, &h->list, list) { 1335 if (c->type != CIS_LINK) 1336 continue; 1337 1338 /* Match CIG ID if set */ 1339 if (cig != c->iso_qos.ucast.cig) 1340 continue; 1341 1342 /* Match CIS ID if set */ 1343 if (id != c->iso_qos.ucast.cis) 1344 continue; 1345 1346 /* Match destination address if set */ 1347 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { 1348 rcu_read_unlock(); 1349 return c; 1350 } 1351 } 1352 1353 rcu_read_unlock(); 1354 1355 return NULL; 1356 } 1357 1358 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, 1359 __u8 handle) 1360 { 1361 struct hci_conn_hash *h = &hdev->conn_hash; 1362 struct hci_conn *c; 1363 1364 rcu_read_lock(); 1365 1366 list_for_each_entry_rcu(c, &h->list, list) { 1367 if (c->type != CIS_LINK) 1368 continue; 1369 1370 if (handle == c->iso_qos.ucast.cig) { 1371 rcu_read_unlock(); 1372 return c; 1373 } 1374 } 1375 1376 rcu_read_unlock(); 1377 1378 return NULL; 1379 } 1380 1381 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, 1382 __u8 handle) 1383 { 1384 struct hci_conn_hash *h = &hdev->conn_hash; 1385 struct hci_conn *c; 1386 1387 rcu_read_lock(); 1388 1389 list_for_each_entry_rcu(c, &h->list, list) { 1390 if (c->type != BIS_LINK) 1391 continue; 1392 1393 if (handle == c->iso_qos.bcast.big) { 1394 rcu_read_unlock(); 1395 return c; 1396 } 1397 } 1398 1399 rcu_read_unlock(); 1400 1401 return NULL; 1402 } 1403 1404 static inline struct hci_conn * 1405 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev, 1406 __u8 handle, __u8 num_bis) 1407 { 1408 struct hci_conn_hash *h = &hdev->conn_hash; 1409 struct hci_conn *c; 1410 1411 rcu_read_lock(); 1412 1413 list_for_each_entry_rcu(c, &h->list, list) { 1414 if (c->type != PA_LINK) 1415 continue; 1416 1417 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) { 1418 rcu_read_unlock(); 1419 return c; 1420 } 1421 } 1422 1423 rcu_read_unlock(); 1424 1425 return NULL; 1426 } 1427 1428 static inline struct hci_conn * 1429 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state, 1430 __u8 role) 1431 { 1432 struct hci_conn_hash *h = &hdev->conn_hash; 1433 struct hci_conn *c; 1434 1435 rcu_read_lock(); 1436 1437 list_for_each_entry_rcu(c, &h->list, list) { 1438 if (c->type != BIS_LINK || c->state != state || c->role != role) 1439 continue; 1440 1441 if (handle == c->iso_qos.bcast.big) { 1442 rcu_read_unlock(); 1443 return c; 1444 } 1445 } 1446 1447 rcu_read_unlock(); 1448 1449 return NULL; 1450 } 1451 1452 static inline struct hci_conn * 1453 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) 1454 { 1455 struct hci_conn_hash *h = &hdev->conn_hash; 1456 struct hci_conn *c; 1457 1458 rcu_read_lock(); 1459 1460 list_for_each_entry_rcu(c, &h->list, list) { 1461 if (c->type != BIS_LINK || 1462 !test_bit(HCI_CONN_PA_SYNC, &c->flags)) 1463 continue; 1464 1465 if (c->iso_qos.bcast.big == big) { 1466 rcu_read_unlock(); 1467 return c; 1468 } 1469 } 1470 rcu_read_unlock(); 1471 1472 return NULL; 1473 } 1474 1475 static inline struct hci_conn * 1476 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) 1477 { 1478 struct hci_conn_hash *h = &hdev->conn_hash; 1479 struct hci_conn *c; 1480 1481 rcu_read_lock(); 1482 1483 list_for_each_entry_rcu(c, &h->list, list) { 1484 if (c->type != PA_LINK) 1485 continue; 1486 1487 /* Ignore the listen hcon, we are looking 1488 * for the child hcon that was created as 1489 * a result of the PA sync established event. 1490 */ 1491 if (c->state == BT_LISTEN) 1492 continue; 1493 1494 if (c->sync_handle == sync_handle) { 1495 rcu_read_unlock(); 1496 return c; 1497 } 1498 } 1499 rcu_read_unlock(); 1500 1501 return NULL; 1502 } 1503 1504 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); 1505 static inline void hci_conn_hash_list_state(struct hci_dev *hdev, 1506 hci_conn_func_t func, __u8 type, 1507 __u16 state, void *data) 1508 { 1509 struct hci_conn_hash *h = &hdev->conn_hash; 1510 struct hci_conn *c; 1511 1512 if (!func) 1513 return; 1514 1515 rcu_read_lock(); 1516 1517 list_for_each_entry_rcu(c, &h->list, list) { 1518 if (c->type == type && c->state == state) 1519 func(c, data); 1520 } 1521 1522 rcu_read_unlock(); 1523 } 1524 1525 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, 1526 hci_conn_func_t func, __u8 type, 1527 __u8 flag, void *data) 1528 { 1529 struct hci_conn_hash *h = &hdev->conn_hash; 1530 struct hci_conn *c; 1531 1532 if (!func) 1533 return; 1534 1535 rcu_read_lock(); 1536 1537 list_for_each_entry_rcu(c, &h->list, list) { 1538 if (c->type == type && test_bit(flag, &c->flags)) 1539 func(c, data); 1540 } 1541 1542 rcu_read_unlock(); 1543 } 1544 1545 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1546 { 1547 struct hci_conn_hash *h = &hdev->conn_hash; 1548 struct hci_conn *c; 1549 1550 rcu_read_lock(); 1551 1552 list_for_each_entry_rcu(c, &h->list, list) { 1553 if (c->type == LE_LINK && c->state == BT_CONNECT && 1554 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1555 rcu_read_unlock(); 1556 return c; 1557 } 1558 } 1559 1560 rcu_read_unlock(); 1561 1562 return NULL; 1563 } 1564 1565 /* Returns true if an le connection is in the scanning state */ 1566 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) 1567 { 1568 struct hci_conn_hash *h = &hdev->conn_hash; 1569 struct hci_conn *c; 1570 1571 rcu_read_lock(); 1572 1573 list_for_each_entry_rcu(c, &h->list, list) { 1574 if (c->type == LE_LINK && c->state == BT_CONNECT && 1575 test_bit(HCI_CONN_SCANNING, &c->flags)) { 1576 rcu_read_unlock(); 1577 return true; 1578 } 1579 } 1580 1581 rcu_read_unlock(); 1582 1583 return false; 1584 } 1585 1586 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1587 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1588 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1589 bool hci_iso_setup_path(struct hci_conn *conn); 1590 int hci_le_create_cis_pending(struct hci_dev *hdev); 1591 int hci_conn_check_create_cis(struct hci_conn *conn); 1592 1593 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1594 u8 dst_type, u8 role, u16 handle); 1595 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, 1596 bdaddr_t *dst, u8 dst_type, u8 role); 1597 void hci_conn_del(struct hci_conn *conn); 1598 void hci_conn_hash_flush(struct hci_dev *hdev); 1599 1600 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1601 void hci_chan_del(struct hci_chan *chan); 1602 void hci_chan_list_flush(struct hci_conn *conn); 1603 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1604 1605 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1606 u8 dst_type, u8 sec_level, 1607 u16 conn_timeout, 1608 enum conn_reasons conn_reason); 1609 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1610 u8 dst_type, bool dst_resolved, u8 sec_level, 1611 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); 1612 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); 1613 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1614 u8 sec_level, u8 auth_type, 1615 enum conn_reasons conn_reason, u16 timeout); 1616 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1617 __u16 setting, struct bt_codec *codec, 1618 u16 timeout); 1619 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, 1620 __u8 dst_type, struct bt_iso_qos *qos, 1621 u16 timeout); 1622 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, __u8 sid, 1623 struct bt_iso_qos *qos, 1624 __u8 base_len, __u8 *base, u16 timeout); 1625 int hci_past_bis(struct hci_conn *conn, bdaddr_t *dst, __u8 dst_type); 1626 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, 1627 __u8 dst_type, struct bt_iso_qos *qos, 1628 u16 timeout); 1629 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, 1630 __u8 dst_type, __u8 sid, 1631 struct bt_iso_qos *qos, 1632 __u8 data_len, __u8 *data, u16 timeout); 1633 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, 1634 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); 1635 int hci_conn_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, 1636 struct bt_iso_qos *qos, __u16 sync_handle, 1637 __u8 num_bis, __u8 bis[]); 1638 int hci_conn_check_link_mode(struct hci_conn *conn); 1639 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1640 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1641 bool initiator); 1642 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1643 1644 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1645 1646 void hci_conn_failed(struct hci_conn *conn, u8 status); 1647 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); 1648 1649 void hci_conn_tx_queue(struct hci_conn *conn, struct sk_buff *skb); 1650 void hci_conn_tx_dequeue(struct hci_conn *conn); 1651 void hci_setup_tx_timestamp(struct sk_buff *skb, size_t key_offset, 1652 const struct sockcm_cookie *sockc); 1653 1654 static inline void hci_sockcm_init(struct sockcm_cookie *sockc, struct sock *sk) 1655 { 1656 *sockc = (struct sockcm_cookie) { 1657 .tsflags = READ_ONCE(sk->sk_tsflags), 1658 }; 1659 } 1660 1661 /* 1662 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1663 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1664 * working or anything else. They just guarantee that the object is available 1665 * and can be dereferenced. So you can use its locks, local variables and any 1666 * other constant data. 1667 * Before accessing runtime data, you _must_ lock the object and then check that 1668 * it is still running. As soon as you release the locks, the connection might 1669 * get dropped, though. 1670 * 1671 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1672 * how long the underlying connection is held. So every channel that runs on the 1673 * hci_conn object calls this to prevent the connection from disappearing. As 1674 * long as you hold a device, you must also guarantee that you have a valid 1675 * reference to the device via hci_conn_get() (or the initial reference from 1676 * hci_conn_add()). 1677 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1678 * break because nobody cares for that. But this means, we cannot use 1679 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1680 */ 1681 1682 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1683 { 1684 get_device(&conn->dev); 1685 return conn; 1686 } 1687 1688 static inline void hci_conn_put(struct hci_conn *conn) 1689 { 1690 put_device(&conn->dev); 1691 } 1692 1693 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) 1694 { 1695 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1696 1697 atomic_inc(&conn->refcnt); 1698 cancel_delayed_work(&conn->disc_work); 1699 1700 return conn; 1701 } 1702 1703 static inline void hci_conn_drop(struct hci_conn *conn) 1704 { 1705 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1706 1707 if (atomic_dec_and_test(&conn->refcnt)) { 1708 unsigned long timeo; 1709 1710 switch (conn->type) { 1711 case ACL_LINK: 1712 case LE_LINK: 1713 cancel_delayed_work(&conn->idle_work); 1714 if (conn->state == BT_CONNECTED) { 1715 timeo = conn->disc_timeout; 1716 if (!conn->out) 1717 timeo *= 2; 1718 } else { 1719 timeo = 0; 1720 } 1721 break; 1722 1723 default: 1724 timeo = 0; 1725 break; 1726 } 1727 1728 cancel_delayed_work(&conn->disc_work); 1729 queue_delayed_work(conn->hdev->workqueue, 1730 &conn->disc_work, timeo); 1731 } 1732 } 1733 1734 /* ----- HCI Devices ----- */ 1735 static inline void hci_dev_put(struct hci_dev *d) 1736 { 1737 BT_DBG("%s orig refcnt %d", d->name, 1738 kref_read(&d->dev.kobj.kref)); 1739 1740 put_device(&d->dev); 1741 } 1742 1743 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1744 { 1745 BT_DBG("%s orig refcnt %d", d->name, 1746 kref_read(&d->dev.kobj.kref)); 1747 1748 get_device(&d->dev); 1749 return d; 1750 } 1751 1752 #define hci_dev_lock(d) mutex_lock(&d->lock) 1753 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1754 1755 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1756 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1757 1758 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1759 { 1760 return dev_get_drvdata(&hdev->dev); 1761 } 1762 1763 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1764 { 1765 dev_set_drvdata(&hdev->dev, data); 1766 } 1767 1768 static inline void *hci_get_priv(struct hci_dev *hdev) 1769 { 1770 return (char *)hdev + sizeof(*hdev); 1771 } 1772 1773 struct hci_dev *hci_dev_get(int index); 1774 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1775 1776 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1777 1778 static inline struct hci_dev *hci_alloc_dev(void) 1779 { 1780 return hci_alloc_dev_priv(0); 1781 } 1782 1783 void hci_free_dev(struct hci_dev *hdev); 1784 int hci_register_dev(struct hci_dev *hdev); 1785 void hci_unregister_dev(struct hci_dev *hdev); 1786 void hci_release_dev(struct hci_dev *hdev); 1787 int hci_register_suspend_notifier(struct hci_dev *hdev); 1788 int hci_unregister_suspend_notifier(struct hci_dev *hdev); 1789 int hci_suspend_dev(struct hci_dev *hdev); 1790 int hci_resume_dev(struct hci_dev *hdev); 1791 int __hci_reset_dev(struct hci_dev *hdev, u8 hw_err_code); 1792 1793 static inline int hci_reset_dev(struct hci_dev *hdev) 1794 { 1795 return __hci_reset_dev(hdev, 0); 1796 } 1797 1798 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1799 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1800 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1801 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1802 1803 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1804 { 1805 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1806 hdev->msft_opcode = opcode; 1807 #endif 1808 } 1809 1810 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1811 { 1812 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1813 hdev->aosp_capable = true; 1814 #endif 1815 } 1816 1817 static inline void hci_devcd_setup(struct hci_dev *hdev) 1818 { 1819 #ifdef CONFIG_DEV_COREDUMP 1820 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); 1821 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); 1822 skb_queue_head_init(&hdev->dump.dump_q); 1823 #endif 1824 } 1825 1826 int hci_dev_open(__u16 dev); 1827 int hci_dev_close(__u16 dev); 1828 int hci_dev_do_close(struct hci_dev *hdev); 1829 int hci_dev_reset(__u16 dev); 1830 int hci_dev_reset_stat(__u16 dev); 1831 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1832 int hci_get_dev_list(void __user *arg); 1833 int hci_get_dev_info(void __user *arg); 1834 int hci_get_conn_list(void __user *arg); 1835 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1836 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1837 int hci_inquiry(void __user *arg); 1838 1839 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1840 bdaddr_t *bdaddr, u8 type); 1841 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1842 struct list_head *list, bdaddr_t *bdaddr, 1843 u8 type); 1844 struct bdaddr_list_with_flags * 1845 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1846 u8 type); 1847 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1848 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1849 u8 type, u8 *peer_irk, u8 *local_irk); 1850 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1851 u8 type, u32 flags); 1852 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1853 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1854 u8 type); 1855 void hci_bdaddr_list_clear(struct list_head *list); 1856 1857 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1858 bdaddr_t *addr, u8 addr_type); 1859 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1860 bdaddr_t *addr, u8 addr_type); 1861 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1862 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1863 void hci_conn_params_free(struct hci_conn_params *param); 1864 1865 void hci_pend_le_list_del_init(struct hci_conn_params *param); 1866 void hci_pend_le_list_add(struct hci_conn_params *param, 1867 struct list_head *list); 1868 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1869 bdaddr_t *addr, 1870 u8 addr_type); 1871 1872 void hci_uuids_clear(struct hci_dev *hdev); 1873 1874 void hci_link_keys_clear(struct hci_dev *hdev); 1875 u8 *hci_conn_key_enc_size(struct hci_conn *conn); 1876 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1877 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1878 bdaddr_t *bdaddr, u8 *val, u8 type, 1879 u8 pin_len, bool *persistent); 1880 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1881 u8 addr_type, u8 type, u8 authenticated, 1882 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1883 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1884 u8 addr_type, u8 role); 1885 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1886 void hci_smp_ltks_clear(struct hci_dev *hdev); 1887 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1888 1889 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1890 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1891 u8 addr_type); 1892 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1893 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1894 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1895 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1896 void hci_blocked_keys_clear(struct hci_dev *hdev); 1897 void hci_smp_irks_clear(struct hci_dev *hdev); 1898 1899 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1900 1901 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1902 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1903 bdaddr_t *bdaddr, u8 bdaddr_type); 1904 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1905 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1906 u8 *hash256, u8 *rand256); 1907 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1908 u8 bdaddr_type); 1909 1910 void hci_adv_instances_clear(struct hci_dev *hdev); 1911 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1912 struct adv_info *hci_find_adv_sid(struct hci_dev *hdev, u8 sid); 1913 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1914 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, 1915 u32 flags, u16 adv_data_len, u8 *adv_data, 1916 u16 scan_rsp_len, u8 *scan_rsp_data, 1917 u16 timeout, u16 duration, s8 tx_power, 1918 u32 min_interval, u32 max_interval, 1919 u8 mesh_handle); 1920 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, u8 sid, 1921 u32 flags, u8 data_len, u8 *data, 1922 u32 min_interval, u32 max_interval); 1923 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1924 u16 adv_data_len, u8 *adv_data, 1925 u16 scan_rsp_len, u8 *scan_rsp_data); 1926 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1927 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1928 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1929 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1930 1931 void hci_adv_monitors_clear(struct hci_dev *hdev); 1932 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1933 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1934 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); 1935 int hci_remove_all_adv_monitor(struct hci_dev *hdev); 1936 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1937 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1938 1939 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1940 1941 void hci_init_sysfs(struct hci_dev *hdev); 1942 void hci_conn_init_sysfs(struct hci_conn *conn); 1943 void hci_conn_add_sysfs(struct hci_conn *conn); 1944 void hci_conn_del_sysfs(struct hci_conn *conn); 1945 1946 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1947 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) 1948 1949 /* ----- LMP capabilities ----- */ 1950 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1951 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1952 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1953 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1954 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1955 #define lmp_sco_capable(dev) ((dev)->features[0][1] & LMP_SCO) 1956 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1957 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1958 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1959 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1960 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1961 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1962 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1963 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1964 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1965 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1966 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1967 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1968 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1969 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1970 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1971 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1972 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1973 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1974 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1975 1976 /* ----- Extended LMP capabilities ----- */ 1977 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1978 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1979 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1980 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1981 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1982 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1983 1984 /* ----- Host capabilities ----- */ 1985 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1986 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1987 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1988 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1989 1990 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1991 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1992 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1993 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1994 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1995 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1996 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1997 !adv->rpa_expired) 1998 #define le_enabled(dev) (lmp_le_capable(dev) && \ 1999 hci_dev_test_flag(dev, HCI_LE_ENABLED)) 2000 2001 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 2002 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 2003 2004 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) 2005 2006 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 2007 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 2008 2009 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ 2010 !hci_test_quirk((dev), \ 2011 HCI_QUIRK_BROKEN_LE_CODED)) 2012 2013 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 2014 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 2015 2016 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 2017 #define ll_privacy_enabled(dev) (le_enabled(dev) && ll_privacy_capable(dev)) 2018 2019 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \ 2020 ((dev)->commands[39] & 0x04)) 2021 2022 #define read_key_size_capable(dev) \ 2023 ((dev)->commands[20] & 0x10 && \ 2024 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE)) 2025 2026 #define read_voice_setting_capable(dev) \ 2027 ((dev)->commands[9] & 0x04 && \ 2028 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_READ_VOICE_SETTING)) 2029 2030 /* Use enhanced synchronous connection if command is supported and its quirk 2031 * has not been set. 2032 */ 2033 #define enhanced_sync_conn_capable(dev) \ 2034 (((dev)->commands[29] & 0x08) && \ 2035 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN)) 2036 2037 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 2038 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 2039 ((dev)->commands[37] & 0x40) && \ 2040 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_SCAN)) 2041 2042 /* Use ext create connection if command is supported */ 2043 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \ 2044 !hci_test_quirk((dev), HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2045 /* Extended advertising support */ 2046 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 2047 2048 /* Maximum advertising length */ 2049 #define max_adv_len(dev) \ 2050 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) 2051 2052 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 2053 * 2054 * C24: Mandatory if the LE Controller supports Connection State and either 2055 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 2056 */ 2057 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \ 2058 ext_adv_capable(dev)) && \ 2059 !hci_test_quirk((dev), \ 2060 HCI_QUIRK_BROKEN_EXT_CREATE_CONN)) 2061 2062 /* Periodic advertising support */ 2063 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) 2064 2065 /* CIS Master/Slave and BIS support */ 2066 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) 2067 #define iso_enabled(dev) (le_enabled(dev) && iso_capable(dev)) 2068 #define cis_capable(dev) \ 2069 (cis_central_capable(dev) || cis_peripheral_capable(dev)) 2070 #define cis_enabled(dev) (le_enabled(dev) && cis_capable(dev)) 2071 #define cis_central_capable(dev) \ 2072 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) 2073 #define cis_central_enabled(dev) \ 2074 (le_enabled(dev) && cis_central_capable(dev)) 2075 #define cis_peripheral_capable(dev) \ 2076 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) 2077 #define cis_peripheral_enabled(dev) \ 2078 (le_enabled(dev) && cis_peripheral_capable(dev)) 2079 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) 2080 #define bis_enabled(dev) (le_enabled(dev) && bis_capable(dev)) 2081 #define sync_recv_capable(dev) \ 2082 ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) 2083 #define sync_recv_enabled(dev) (le_enabled(dev) && sync_recv_capable(dev)) 2084 #define past_sender_capable(dev) \ 2085 ((dev)->le_features[3] & HCI_LE_PAST_SENDER) 2086 #define past_receiver_capable(dev) \ 2087 ((dev)->le_features[3] & HCI_LE_PAST_RECEIVER) 2088 #define past_capable(dev) \ 2089 (past_sender_capable(dev) || past_receiver_capable(dev)) 2090 #define past_sender_enabled(dev) \ 2091 (le_enabled(dev) && past_sender_capable(dev)) 2092 #define past_receiver_enabled(dev) \ 2093 (le_enabled(dev) && past_receiver_capable(dev)) 2094 #define past_enabled(dev) \ 2095 (past_sender_enabled(dev) || past_receiver_enabled(dev)) 2096 #define ll_ext_feature_capable(dev) \ 2097 ((dev)->le_features[7] & HCI_LE_LL_EXT_FEATURE) 2098 2099 /* Channel sounding support */ 2100 #define le_cs_capable(dev) \ 2101 ((dev)->le_features[5] & HCI_LE_CS) 2102 #define le_cs_host_capable(dev) \ 2103 ((dev)->le_features[5] & HCI_LE_CS_HOST) 2104 2105 #define le_sci_capable(dev) \ 2106 ((dev)->le_features[9] & HCI_LE_SCI) 2107 #define le_sci_enabled(dev) \ 2108 (le_enabled(dev) && le_sci_capable(dev)) 2109 2110 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ 2111 (!hci_test_quirk((dev), HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG))) 2112 2113 /* ----- HCI protocols ----- */ 2114 #define HCI_PROTO_DEFER 0x01 2115 2116 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 2117 __u8 type, __u8 *flags) 2118 { 2119 switch (type) { 2120 case ACL_LINK: 2121 return l2cap_connect_ind(hdev, bdaddr); 2122 2123 case SCO_LINK: 2124 case ESCO_LINK: 2125 return sco_connect_ind(hdev, bdaddr, flags); 2126 2127 case CIS_LINK: 2128 case BIS_LINK: 2129 case PA_LINK: 2130 return iso_connect_ind(hdev, bdaddr, flags); 2131 2132 default: 2133 BT_ERR("unknown link type %d", type); 2134 return -EINVAL; 2135 } 2136 } 2137 2138 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 2139 { 2140 if (conn->type != ACL_LINK && conn->type != LE_LINK) 2141 return HCI_ERROR_REMOTE_USER_TERM; 2142 2143 return l2cap_disconn_ind(conn); 2144 } 2145 2146 /* ----- HCI callbacks ----- */ 2147 struct hci_cb { 2148 struct list_head list; 2149 2150 char *name; 2151 2152 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 2153 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 2154 void (*security_cfm) (struct hci_conn *conn, __u8 status, 2155 __u8 encrypt); 2156 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 2157 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 2158 }; 2159 2160 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 2161 { 2162 struct hci_cb *cb; 2163 2164 mutex_lock(&hci_cb_list_lock); 2165 list_for_each_entry(cb, &hci_cb_list, list) { 2166 if (cb->connect_cfm) 2167 cb->connect_cfm(conn, status); 2168 } 2169 mutex_unlock(&hci_cb_list_lock); 2170 2171 if (conn->connect_cfm_cb) 2172 conn->connect_cfm_cb(conn, status); 2173 } 2174 2175 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 2176 { 2177 struct hci_cb *cb; 2178 2179 mutex_lock(&hci_cb_list_lock); 2180 list_for_each_entry(cb, &hci_cb_list, list) { 2181 if (cb->disconn_cfm) 2182 cb->disconn_cfm(conn, reason); 2183 } 2184 mutex_unlock(&hci_cb_list_lock); 2185 2186 if (conn->disconn_cfm_cb) 2187 conn->disconn_cfm_cb(conn, reason); 2188 } 2189 2190 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 2191 { 2192 struct hci_cb *cb; 2193 __u8 encrypt; 2194 2195 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 2196 return; 2197 2198 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 2199 2200 mutex_lock(&hci_cb_list_lock); 2201 list_for_each_entry(cb, &hci_cb_list, list) { 2202 if (cb->security_cfm) 2203 cb->security_cfm(conn, status, encrypt); 2204 } 2205 mutex_unlock(&hci_cb_list_lock); 2206 2207 if (conn->security_cfm_cb) 2208 conn->security_cfm_cb(conn, status); 2209 } 2210 2211 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 2212 { 2213 struct hci_cb *cb; 2214 __u8 encrypt; 2215 2216 if (conn->state == BT_CONFIG) { 2217 if (!status) 2218 conn->state = BT_CONNECTED; 2219 2220 hci_connect_cfm(conn, status); 2221 hci_conn_drop(conn); 2222 return; 2223 } 2224 2225 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 2226 encrypt = 0x00; 2227 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 2228 encrypt = 0x02; 2229 else 2230 encrypt = 0x01; 2231 2232 if (!status) { 2233 if (conn->sec_level == BT_SECURITY_SDP) 2234 conn->sec_level = BT_SECURITY_LOW; 2235 2236 if (conn->pending_sec_level > conn->sec_level) 2237 conn->sec_level = conn->pending_sec_level; 2238 } 2239 2240 mutex_lock(&hci_cb_list_lock); 2241 list_for_each_entry(cb, &hci_cb_list, list) { 2242 if (cb->security_cfm) 2243 cb->security_cfm(conn, status, encrypt); 2244 } 2245 mutex_unlock(&hci_cb_list_lock); 2246 2247 if (conn->security_cfm_cb) 2248 conn->security_cfm_cb(conn, status); 2249 } 2250 2251 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 2252 { 2253 struct hci_cb *cb; 2254 2255 mutex_lock(&hci_cb_list_lock); 2256 list_for_each_entry(cb, &hci_cb_list, list) { 2257 if (cb->key_change_cfm) 2258 cb->key_change_cfm(conn, status); 2259 } 2260 mutex_unlock(&hci_cb_list_lock); 2261 } 2262 2263 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 2264 __u8 role) 2265 { 2266 struct hci_cb *cb; 2267 2268 mutex_lock(&hci_cb_list_lock); 2269 list_for_each_entry(cb, &hci_cb_list, list) { 2270 if (cb->role_switch_cfm) 2271 cb->role_switch_cfm(conn, status, role); 2272 } 2273 mutex_unlock(&hci_cb_list_lock); 2274 } 2275 2276 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 2277 { 2278 if (addr_type != ADDR_LE_DEV_RANDOM) 2279 return false; 2280 2281 if ((bdaddr->b[5] & 0xc0) == 0x40) 2282 return true; 2283 2284 return false; 2285 } 2286 2287 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 2288 { 2289 if (addr_type == ADDR_LE_DEV_PUBLIC) 2290 return true; 2291 2292 /* Check for Random Static address type */ 2293 if ((addr->b[5] & 0xc0) == 0xc0) 2294 return true; 2295 2296 return false; 2297 } 2298 2299 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 2300 bdaddr_t *bdaddr, u8 addr_type) 2301 { 2302 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 2303 return NULL; 2304 2305 return hci_find_irk_by_rpa(hdev, bdaddr); 2306 } 2307 2308 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 2309 u16 to_multiplier) 2310 { 2311 u16 max_latency; 2312 2313 if (min > max) { 2314 BT_WARN("min %d > max %d", min, max); 2315 return -EINVAL; 2316 } 2317 2318 if (min < 6) { 2319 BT_WARN("min %d < 6", min); 2320 return -EINVAL; 2321 } 2322 2323 if (max > 3200) { 2324 BT_WARN("max %d > 3200", max); 2325 return -EINVAL; 2326 } 2327 2328 if (to_multiplier < 10) { 2329 BT_WARN("to_multiplier %d < 10", to_multiplier); 2330 return -EINVAL; 2331 } 2332 2333 if (to_multiplier > 3200) { 2334 BT_WARN("to_multiplier %d > 3200", to_multiplier); 2335 return -EINVAL; 2336 } 2337 2338 if (max >= to_multiplier * 8) { 2339 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); 2340 return -EINVAL; 2341 } 2342 2343 max_latency = (to_multiplier * 4 / max) - 1; 2344 if (latency > 499) { 2345 BT_WARN("latency %d > 499", latency); 2346 return -EINVAL; 2347 } 2348 2349 if (latency > max_latency) { 2350 BT_WARN("latency %d > max_latency %d", latency, max_latency); 2351 return -EINVAL; 2352 } 2353 2354 return 0; 2355 } 2356 2357 int hci_register_cb(struct hci_cb *hcb); 2358 int hci_unregister_cb(struct hci_cb *hcb); 2359 2360 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 2361 const void *param); 2362 2363 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 2364 const void *param); 2365 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 2366 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 2367 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); 2368 2369 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 2370 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); 2371 2372 u32 hci_conn_get_phy(struct hci_conn *conn); 2373 int hci_conn_set_phy(struct hci_conn *conn, u32 phys); 2374 2375 /* ----- HCI Sockets ----- */ 2376 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 2377 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 2378 int flag, struct sock *skip_sk); 2379 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 2380 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 2381 void *data, u16 data_len, ktime_t tstamp, 2382 int flag, struct sock *skip_sk); 2383 2384 void hci_sock_dev_event(struct hci_dev *hdev, int event); 2385 2386 #define HCI_MGMT_VAR_LEN BIT(0) 2387 #define HCI_MGMT_NO_HDEV BIT(1) 2388 #define HCI_MGMT_UNTRUSTED BIT(2) 2389 #define HCI_MGMT_UNCONFIGURED BIT(3) 2390 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 2391 2392 struct hci_mgmt_handler { 2393 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2394 u16 data_len); 2395 size_t data_len; 2396 unsigned long flags; 2397 }; 2398 2399 struct hci_mgmt_chan { 2400 struct list_head list; 2401 unsigned short channel; 2402 size_t handler_count; 2403 const struct hci_mgmt_handler *handlers; 2404 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 2405 }; 2406 2407 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 2408 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 2409 2410 /* Management interface */ 2411 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 2412 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 2413 BIT(BDADDR_LE_RANDOM)) 2414 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 2415 BIT(BDADDR_LE_PUBLIC) | \ 2416 BIT(BDADDR_LE_RANDOM)) 2417 2418 /* These LE scan and inquiry parameters were chosen according to LE General 2419 * Discovery Procedure specification. 2420 */ 2421 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ 2422 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ 2423 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ 2424 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ 2425 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ 2426 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ 2427 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ 2428 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ 2429 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ 2430 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ 2431 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ 2432 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ 2433 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ 2434 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ 2435 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ 2436 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ 2437 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 2438 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 2439 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 2440 #define DISCOV_BREDR_INQUIRY_LEN 0x08 2441 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 2442 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 2443 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 2444 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ 2445 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ 2446 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ 2447 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ 2448 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) 2449 2450 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 2451 2452 void mgmt_fill_version_info(void *ver); 2453 int mgmt_new_settings(struct hci_dev *hdev); 2454 void mgmt_index_added(struct hci_dev *hdev); 2455 void mgmt_index_removed(struct hci_dev *hdev); 2456 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 2457 void mgmt_power_on(struct hci_dev *hdev, int err); 2458 void __mgmt_power_off(struct hci_dev *hdev); 2459 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 2460 bool persistent); 2461 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 2462 u8 *name, u8 name_len); 2463 u8 hci_to_mgmt_reason(u8 err); 2464 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 2465 u8 link_type, u8 addr_type, u8 reason, 2466 bool mgmt_connected); 2467 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 2468 u8 link_type, u8 addr_type, u8 status); 2469 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, 2470 u8 status); 2471 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 2472 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2473 u8 status); 2474 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2475 u8 status); 2476 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2477 u8 link_type, u8 addr_type, u32 value, 2478 u8 confirm_hint); 2479 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2480 u8 link_type, u8 addr_type, u8 status); 2481 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2482 u8 link_type, u8 addr_type, u8 status); 2483 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2484 u8 link_type, u8 addr_type); 2485 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2486 u8 link_type, u8 addr_type, u8 status); 2487 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2488 u8 link_type, u8 addr_type, u8 status); 2489 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 2490 u8 link_type, u8 addr_type, u32 passkey, 2491 u8 entered); 2492 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 2493 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 2494 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 2495 u8 status); 2496 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 2497 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2498 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 2499 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, 2500 u64 instant); 2501 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2502 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 2503 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 2504 void mgmt_suspending(struct hci_dev *hdev, u8 state); 2505 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 2506 u8 addr_type); 2507 bool mgmt_powering_down(struct hci_dev *hdev); 2508 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 2509 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 2510 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 2511 bool persistent); 2512 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 2513 u8 bdaddr_type, u8 store_hint, u16 min_interval, 2514 u16 max_interval, u16 latency, u16 timeout); 2515 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 2516 bool mgmt_get_connectable(struct hci_dev *hdev); 2517 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 2518 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 2519 u8 instance); 2520 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 2521 u8 instance); 2522 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 2523 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, 2524 bdaddr_t *bdaddr, u8 addr_type); 2525 void mgmt_conn_subrate_notify(struct hci_dev *hdev, struct hci_conn *conn, 2526 u8 status); 2527 2528 int hci_abort_conn(struct hci_conn *conn, u8 reason); 2529 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 2530 u16 to_multiplier); 2531 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 2532 __u8 ltk[16], __u8 key_size); 2533 2534 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 2535 u8 *bdaddr_type); 2536 2537 #define SCO_AIRMODE_MASK 0x0003 2538 #define SCO_AIRMODE_CVSD 0x0000 2539 #define SCO_AIRMODE_TRANSP 0x0003 2540 2541 #define LOCAL_CODEC_ACL_MASK BIT(0) 2542 #define LOCAL_CODEC_SCO_MASK BIT(1) 2543 2544 #define TRANSPORT_TYPE_MAX 0x04 2545 2546 #endif /* __HCI_CORE_H */ 2547