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