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