1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 Copyright 2023-2024 NXP 5 6 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License version 2 as 10 published by the Free Software Foundation; 11 12 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 13 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 14 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 15 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 16 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 17 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20 21 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 22 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 23 SOFTWARE IS DISCLAIMED. 24 */ 25 26 #ifndef __HCI_CORE_H 27 #define __HCI_CORE_H 28 29 #include <linux/idr.h> 30 #include <linux/leds.h> 31 #include <linux/rculist.h> 32 33 #include <net/bluetooth/hci.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 }; 96 97 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 98 99 enum suspend_tasks { 100 SUSPEND_PAUSE_DISCOVERY, 101 SUSPEND_UNPAUSE_DISCOVERY, 102 103 SUSPEND_PAUSE_ADVERTISING, 104 SUSPEND_UNPAUSE_ADVERTISING, 105 106 SUSPEND_SCAN_DISABLE, 107 SUSPEND_SCAN_ENABLE, 108 SUSPEND_DISCONNECTING, 109 110 SUSPEND_POWERING_DOWN, 111 112 SUSPEND_PREPARE_NOTIFIER, 113 114 SUSPEND_SET_ADV_FILTER, 115 __SUSPEND_NUM_TASKS 116 }; 117 118 enum suspended_state { 119 BT_RUNNING = 0, 120 BT_SUSPEND_DISCONNECT, 121 BT_SUSPEND_CONFIGURE_WAKE, 122 }; 123 124 struct hci_conn_hash { 125 struct list_head list; 126 unsigned int acl_num; 127 unsigned int sco_num; 128 unsigned int iso_num; 129 unsigned int le_num; 130 unsigned int le_num_peripheral; 131 }; 132 133 struct bdaddr_list { 134 struct list_head list; 135 bdaddr_t bdaddr; 136 u8 bdaddr_type; 137 }; 138 139 struct codec_list { 140 struct list_head list; 141 u8 id; 142 __u16 cid; 143 __u16 vid; 144 u8 transport; 145 u8 num_caps; 146 u32 len; 147 struct hci_codec_caps caps[]; 148 }; 149 150 struct bdaddr_list_with_irk { 151 struct list_head list; 152 bdaddr_t bdaddr; 153 u8 bdaddr_type; 154 u8 peer_irk[16]; 155 u8 local_irk[16]; 156 }; 157 158 /* Bitmask of connection flags */ 159 enum hci_conn_flags { 160 HCI_CONN_FLAG_REMOTE_WAKEUP = BIT(0), 161 HCI_CONN_FLAG_DEVICE_PRIVACY = BIT(1), 162 HCI_CONN_FLAG_ADDRESS_RESOLUTION = BIT(2), 163 }; 164 typedef u8 hci_conn_flags_t; 165 166 struct bdaddr_list_with_flags { 167 struct list_head list; 168 bdaddr_t bdaddr; 169 u8 bdaddr_type; 170 hci_conn_flags_t flags; 171 }; 172 173 struct bt_uuid { 174 struct list_head list; 175 u8 uuid[16]; 176 u8 size; 177 u8 svc_hint; 178 }; 179 180 struct blocked_key { 181 struct list_head list; 182 struct rcu_head rcu; 183 u8 type; 184 u8 val[16]; 185 }; 186 187 struct smp_csrk { 188 bdaddr_t bdaddr; 189 u8 bdaddr_type; 190 u8 type; 191 u8 val[16]; 192 }; 193 194 struct smp_ltk { 195 struct list_head list; 196 struct rcu_head rcu; 197 bdaddr_t bdaddr; 198 u8 bdaddr_type; 199 u8 authenticated; 200 u8 type; 201 u8 enc_size; 202 __le16 ediv; 203 __le64 rand; 204 u8 val[16]; 205 }; 206 207 struct smp_irk { 208 struct list_head list; 209 struct rcu_head rcu; 210 bdaddr_t rpa; 211 bdaddr_t bdaddr; 212 u8 addr_type; 213 u8 val[16]; 214 }; 215 216 struct link_key { 217 struct list_head list; 218 struct rcu_head rcu; 219 bdaddr_t bdaddr; 220 u8 type; 221 u8 val[HCI_LINK_KEY_SIZE]; 222 u8 pin_len; 223 }; 224 225 struct oob_data { 226 struct list_head list; 227 bdaddr_t bdaddr; 228 u8 bdaddr_type; 229 u8 present; 230 u8 hash192[16]; 231 u8 rand192[16]; 232 u8 hash256[16]; 233 u8 rand256[16]; 234 }; 235 236 struct adv_info { 237 struct list_head list; 238 bool enabled; 239 bool pending; 240 bool periodic; 241 __u8 mesh; 242 __u8 instance; 243 __u8 handle; 244 __u32 flags; 245 __u16 timeout; 246 __u16 remaining_time; 247 __u16 duration; 248 __u16 adv_data_len; 249 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 250 bool adv_data_changed; 251 __u16 scan_rsp_len; 252 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 253 bool scan_rsp_changed; 254 __u16 per_adv_data_len; 255 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 256 __s8 tx_power; 257 __u32 min_interval; 258 __u32 max_interval; 259 bdaddr_t random_addr; 260 bool rpa_expired; 261 struct delayed_work rpa_expired_cb; 262 }; 263 264 #define HCI_MAX_ADV_INSTANCES 5 265 #define HCI_DEFAULT_ADV_DURATION 2 266 267 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 268 269 #define DATA_CMP(_d1, _l1, _d2, _l2) \ 270 (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) 271 272 #define ADV_DATA_CMP(_adv, _data, _len) \ 273 DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) 274 275 #define SCAN_RSP_CMP(_adv, _data, _len) \ 276 DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) 277 278 struct monitored_device { 279 struct list_head list; 280 281 bdaddr_t bdaddr; 282 __u8 addr_type; 283 __u16 handle; 284 bool notified; 285 }; 286 287 struct adv_pattern { 288 struct list_head list; 289 __u8 ad_type; 290 __u8 offset; 291 __u8 length; 292 __u8 value[HCI_MAX_EXT_AD_LENGTH]; 293 }; 294 295 struct adv_rssi_thresholds { 296 __s8 low_threshold; 297 __s8 high_threshold; 298 __u16 low_threshold_timeout; 299 __u16 high_threshold_timeout; 300 __u8 sampling_period; 301 }; 302 303 struct adv_monitor { 304 struct list_head patterns; 305 struct adv_rssi_thresholds rssi; 306 __u16 handle; 307 308 enum { 309 ADV_MONITOR_STATE_NOT_REGISTERED, 310 ADV_MONITOR_STATE_REGISTERED, 311 ADV_MONITOR_STATE_OFFLOADED 312 } state; 313 }; 314 315 #define HCI_MIN_ADV_MONITOR_HANDLE 1 316 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 317 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 318 #define HCI_ADV_MONITOR_EXT_NONE 1 319 #define HCI_ADV_MONITOR_EXT_MSFT 2 320 321 #define HCI_MAX_SHORT_NAME_LENGTH 10 322 323 #define HCI_CONN_HANDLE_MAX 0x0eff 324 #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) 325 326 /* Min encryption key size to match with SMP */ 327 #define HCI_MIN_ENC_KEY_SIZE 7 328 329 /* Default LE RPA expiry time, 15 minutes */ 330 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 331 332 /* Default min/max age of connection information (1s/3s) */ 333 #define DEFAULT_CONN_INFO_MIN_AGE 1000 334 #define DEFAULT_CONN_INFO_MAX_AGE 3000 335 /* Default authenticated payload timeout 30s */ 336 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 337 338 #define HCI_MAX_PAGES 3 339 340 struct hci_dev { 341 struct list_head list; 342 struct mutex lock; 343 344 struct ida unset_handle_ida; 345 346 const char *name; 347 unsigned long flags; 348 __u16 id; 349 __u8 bus; 350 bdaddr_t bdaddr; 351 bdaddr_t setup_addr; 352 bdaddr_t public_addr; 353 bdaddr_t random_addr; 354 bdaddr_t static_addr; 355 __u8 adv_addr_type; 356 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 357 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 358 __u8 eir[HCI_MAX_EIR_LENGTH]; 359 __u16 appearance; 360 __u8 dev_class[3]; 361 __u8 major_class; 362 __u8 minor_class; 363 __u8 max_page; 364 __u8 features[HCI_MAX_PAGES][8]; 365 __u8 le_features[8]; 366 __u8 le_accept_list_size; 367 __u8 le_resolv_list_size; 368 __u8 le_num_of_adv_sets; 369 __u8 le_states[8]; 370 __u8 mesh_ad_types[16]; 371 __u8 mesh_send_ref; 372 __u8 commands[64]; 373 __u8 hci_ver; 374 __u16 hci_rev; 375 __u8 lmp_ver; 376 __u16 manufacturer; 377 __u16 lmp_subver; 378 __u16 voice_setting; 379 __u8 num_iac; 380 __u16 stored_max_keys; 381 __u16 stored_num_keys; 382 __u8 io_capability; 383 __s8 inq_tx_power; 384 __u8 err_data_reporting; 385 __u16 page_scan_interval; 386 __u16 page_scan_window; 387 __u8 page_scan_type; 388 __u8 le_adv_channel_map; 389 __u16 le_adv_min_interval; 390 __u16 le_adv_max_interval; 391 __u8 le_scan_type; 392 __u16 le_scan_interval; 393 __u16 le_scan_window; 394 __u16 le_scan_int_suspend; 395 __u16 le_scan_window_suspend; 396 __u16 le_scan_int_discovery; 397 __u16 le_scan_window_discovery; 398 __u16 le_scan_int_adv_monitor; 399 __u16 le_scan_window_adv_monitor; 400 __u16 le_scan_int_connect; 401 __u16 le_scan_window_connect; 402 __u16 le_conn_min_interval; 403 __u16 le_conn_max_interval; 404 __u16 le_conn_latency; 405 __u16 le_supv_timeout; 406 __u16 le_def_tx_len; 407 __u16 le_def_tx_time; 408 __u16 le_max_tx_len; 409 __u16 le_max_tx_time; 410 __u16 le_max_rx_len; 411 __u16 le_max_rx_time; 412 __u8 le_max_key_size; 413 __u8 le_min_key_size; 414 __u16 discov_interleaved_timeout; 415 __u16 conn_info_min_age; 416 __u16 conn_info_max_age; 417 __u16 auth_payload_timeout; 418 __u8 min_enc_key_size; 419 __u8 max_enc_key_size; 420 __u8 pairing_opts; 421 __u8 ssp_debug_mode; 422 __u8 hw_error_code; 423 __u32 clock; 424 __u16 advmon_allowlist_duration; 425 __u16 advmon_no_filter_duration; 426 __u8 enable_advmon_interleave_scan; 427 428 __u16 devid_source; 429 __u16 devid_vendor; 430 __u16 devid_product; 431 __u16 devid_version; 432 433 __u8 def_page_scan_type; 434 __u16 def_page_scan_int; 435 __u16 def_page_scan_window; 436 __u8 def_inq_scan_type; 437 __u16 def_inq_scan_int; 438 __u16 def_inq_scan_window; 439 __u16 def_br_lsto; 440 __u16 def_page_timeout; 441 __u16 def_multi_adv_rotation_duration; 442 __u16 def_le_autoconnect_timeout; 443 __s8 min_le_tx_power; 444 __s8 max_le_tx_power; 445 446 __u16 pkt_type; 447 __u16 esco_type; 448 __u16 link_policy; 449 __u16 link_mode; 450 451 __u32 idle_timeout; 452 __u16 sniff_min_interval; 453 __u16 sniff_max_interval; 454 455 unsigned int auto_accept_delay; 456 457 unsigned long quirks; 458 459 atomic_t cmd_cnt; 460 unsigned int acl_cnt; 461 unsigned int sco_cnt; 462 unsigned int le_cnt; 463 unsigned int iso_cnt; 464 465 unsigned int acl_mtu; 466 unsigned int sco_mtu; 467 unsigned int le_mtu; 468 unsigned int iso_mtu; 469 unsigned int acl_pkts; 470 unsigned int sco_pkts; 471 unsigned int le_pkts; 472 unsigned int iso_pkts; 473 474 unsigned long acl_last_tx; 475 unsigned long le_last_tx; 476 477 __u8 le_tx_def_phys; 478 __u8 le_rx_def_phys; 479 480 struct workqueue_struct *workqueue; 481 struct workqueue_struct *req_workqueue; 482 483 struct work_struct power_on; 484 struct delayed_work power_off; 485 struct work_struct error_reset; 486 struct work_struct cmd_sync_work; 487 struct list_head cmd_sync_work_list; 488 struct mutex cmd_sync_work_lock; 489 struct mutex unregister_lock; 490 struct work_struct cmd_sync_cancel_work; 491 struct work_struct reenable_adv_work; 492 493 __u16 discov_timeout; 494 struct delayed_work discov_off; 495 496 struct delayed_work service_cache; 497 498 struct delayed_work cmd_timer; 499 struct delayed_work ncmd_timer; 500 501 struct work_struct rx_work; 502 struct work_struct cmd_work; 503 struct work_struct tx_work; 504 505 struct delayed_work le_scan_disable; 506 507 struct sk_buff_head rx_q; 508 struct sk_buff_head raw_q; 509 struct sk_buff_head cmd_q; 510 511 struct sk_buff *sent_cmd; 512 struct sk_buff *recv_event; 513 514 struct mutex req_lock; 515 wait_queue_head_t req_wait_q; 516 __u32 req_status; 517 __u32 req_result; 518 struct sk_buff *req_skb; 519 struct sk_buff *req_rsp; 520 521 void *smp_data; 522 void *smp_bredr_data; 523 524 struct discovery_state discovery; 525 526 bool discovery_paused; 527 int advertising_old_state; 528 bool advertising_paused; 529 530 struct notifier_block suspend_notifier; 531 enum suspended_state suspend_state_next; 532 enum suspended_state suspend_state; 533 bool scanning_paused; 534 bool suspended; 535 u8 wake_reason; 536 bdaddr_t wake_addr; 537 u8 wake_addr_type; 538 539 struct hci_conn_hash conn_hash; 540 541 struct list_head mesh_pending; 542 struct list_head mgmt_pending; 543 struct list_head reject_list; 544 struct list_head accept_list; 545 struct list_head uuids; 546 struct list_head link_keys; 547 struct list_head long_term_keys; 548 struct list_head identity_resolving_keys; 549 struct list_head remote_oob_data; 550 struct list_head le_accept_list; 551 struct list_head le_resolv_list; 552 struct list_head le_conn_params; 553 struct list_head pend_le_conns; 554 struct list_head pend_le_reports; 555 struct list_head blocked_keys; 556 struct list_head local_codecs; 557 558 struct hci_dev_stats stat; 559 560 atomic_t promisc; 561 562 const char *hw_info; 563 const char *fw_info; 564 struct dentry *debugfs; 565 566 struct hci_devcoredump dump; 567 568 struct device dev; 569 570 struct rfkill *rfkill; 571 572 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 573 hci_conn_flags_t conn_flags; 574 575 __s8 adv_tx_power; 576 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 577 __u8 adv_data_len; 578 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 579 __u8 scan_rsp_data_len; 580 __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; 581 __u8 per_adv_data_len; 582 583 struct list_head adv_instances; 584 unsigned int adv_instance_cnt; 585 __u8 cur_adv_instance; 586 __u16 adv_instance_timeout; 587 struct delayed_work adv_instance_expire; 588 589 struct idr adv_monitors_idr; 590 unsigned int adv_monitors_cnt; 591 592 __u8 irk[16]; 593 __u32 rpa_timeout; 594 struct delayed_work rpa_expired; 595 bdaddr_t rpa; 596 597 struct delayed_work mesh_send_done; 598 599 enum { 600 INTERLEAVE_SCAN_NONE, 601 INTERLEAVE_SCAN_NO_FILTER, 602 INTERLEAVE_SCAN_ALLOWLIST 603 } interleave_scan_state; 604 605 struct delayed_work interleave_scan; 606 607 struct list_head monitored_devices; 608 bool advmon_pend_notify; 609 610 #if IS_ENABLED(CONFIG_BT_LEDS) 611 struct led_trigger *power_led; 612 #endif 613 614 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 615 __u16 msft_opcode; 616 void *msft_data; 617 bool msft_curve_validity; 618 #endif 619 620 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 621 bool aosp_capable; 622 bool aosp_quality_report; 623 #endif 624 625 int (*open)(struct hci_dev *hdev); 626 int (*close)(struct hci_dev *hdev); 627 int (*flush)(struct hci_dev *hdev); 628 int (*setup)(struct hci_dev *hdev); 629 int (*shutdown)(struct hci_dev *hdev); 630 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 631 void (*notify)(struct hci_dev *hdev, unsigned int evt); 632 void (*hw_error)(struct hci_dev *hdev, u8 code); 633 int (*post_init)(struct hci_dev *hdev); 634 int (*set_diag)(struct hci_dev *hdev, bool enable); 635 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 636 void (*reset)(struct hci_dev *hdev); 637 bool (*wakeup)(struct hci_dev *hdev); 638 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 639 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 640 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 641 struct bt_codec *codec, __u8 *vnd_len, 642 __u8 **vnd_data); 643 u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); 644 }; 645 646 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 647 648 enum conn_reasons { 649 CONN_REASON_PAIR_DEVICE, 650 CONN_REASON_L2CAP_CHAN, 651 CONN_REASON_SCO_CONNECT, 652 CONN_REASON_ISO_CONNECT, 653 }; 654 655 struct hci_conn { 656 struct list_head list; 657 658 atomic_t refcnt; 659 660 bdaddr_t dst; 661 __u8 dst_type; 662 bdaddr_t src; 663 __u8 src_type; 664 bdaddr_t init_addr; 665 __u8 init_addr_type; 666 bdaddr_t resp_addr; 667 __u8 resp_addr_type; 668 __u8 adv_instance; 669 __u16 handle; 670 __u16 sync_handle; 671 __u8 sid; 672 __u16 state; 673 __u16 mtu; 674 __u8 mode; 675 __u8 type; 676 __u8 role; 677 bool out; 678 __u8 attempt; 679 __u8 dev_class[3]; 680 __u8 features[HCI_MAX_PAGES][8]; 681 __u16 pkt_type; 682 __u16 link_policy; 683 __u8 key_type; 684 __u8 auth_type; 685 __u8 sec_level; 686 __u8 pending_sec_level; 687 __u8 pin_length; 688 __u8 enc_key_size; 689 __u8 io_capability; 690 __u32 passkey_notify; 691 __u8 passkey_entered; 692 __u16 disc_timeout; 693 __u16 conn_timeout; 694 __u16 setting; 695 __u16 auth_payload_timeout; 696 __u16 le_conn_min_interval; 697 __u16 le_conn_max_interval; 698 __u16 le_conn_interval; 699 __u16 le_conn_latency; 700 __u16 le_supv_timeout; 701 __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; 702 __u8 le_adv_data_len; 703 __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; 704 __u16 le_per_adv_data_len; 705 __u16 le_per_adv_data_offset; 706 __u8 le_adv_phy; 707 __u8 le_adv_sec_phy; 708 __u8 le_tx_phy; 709 __u8 le_rx_phy; 710 __s8 rssi; 711 __s8 tx_power; 712 __s8 max_tx_power; 713 struct bt_iso_qos iso_qos; 714 __u8 num_bis; 715 __u8 bis[HCI_MAX_ISO_BIS]; 716 717 unsigned long flags; 718 719 enum conn_reasons conn_reason; 720 __u8 abort_reason; 721 722 __u32 clock; 723 __u16 clock_accuracy; 724 725 unsigned long conn_info_timestamp; 726 727 __u8 remote_cap; 728 __u8 remote_auth; 729 __u8 remote_id; 730 731 unsigned int sent; 732 733 struct sk_buff_head data_q; 734 struct list_head chan_list; 735 736 struct delayed_work disc_work; 737 struct delayed_work auto_accept_work; 738 struct delayed_work idle_work; 739 struct delayed_work le_conn_timeout; 740 741 struct device dev; 742 struct dentry *debugfs; 743 744 struct hci_dev *hdev; 745 void *l2cap_data; 746 void *sco_data; 747 void *iso_data; 748 749 struct list_head link_list; 750 struct hci_conn *parent; 751 struct hci_link *link; 752 753 struct bt_codec codec; 754 755 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 756 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 757 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 758 759 void (*cleanup)(struct hci_conn *conn); 760 }; 761 762 struct hci_link { 763 struct list_head list; 764 struct hci_conn *conn; 765 }; 766 767 struct hci_chan { 768 struct list_head list; 769 __u16 handle; 770 struct hci_conn *conn; 771 struct sk_buff_head data_q; 772 unsigned int sent; 773 __u8 state; 774 }; 775 776 struct hci_conn_params { 777 struct list_head list; 778 struct list_head action; 779 780 bdaddr_t addr; 781 u8 addr_type; 782 783 u16 conn_min_interval; 784 u16 conn_max_interval; 785 u16 conn_latency; 786 u16 supervision_timeout; 787 788 enum { 789 HCI_AUTO_CONN_DISABLED, 790 HCI_AUTO_CONN_REPORT, 791 HCI_AUTO_CONN_DIRECT, 792 HCI_AUTO_CONN_ALWAYS, 793 HCI_AUTO_CONN_LINK_LOSS, 794 HCI_AUTO_CONN_EXPLICIT, 795 } auto_connect; 796 797 struct hci_conn *conn; 798 bool explicit_connect; 799 /* Accessed without hdev->lock: */ 800 hci_conn_flags_t flags; 801 u8 privacy_mode; 802 }; 803 804 extern struct list_head hci_dev_list; 805 extern struct list_head hci_cb_list; 806 extern rwlock_t hci_dev_list_lock; 807 808 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 809 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 810 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 811 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 812 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 813 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 814 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 815 816 #define hci_dev_clear_volatile_flags(hdev) \ 817 do { \ 818 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 819 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 820 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 821 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 822 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ 823 } while (0) 824 825 #define hci_dev_le_state_simultaneous(hdev) \ 826 (!test_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks) && \ 827 (hdev->le_states[4] & 0x08) && /* Central */ \ 828 (hdev->le_states[4] & 0x40) && /* Peripheral */ \ 829 (hdev->le_states[3] & 0x10)) /* Simultaneous */ 830 831 /* ----- HCI interface to upper protocols ----- */ 832 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 833 int l2cap_disconn_ind(struct hci_conn *hcon); 834 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 835 836 #if IS_ENABLED(CONFIG_BT_BREDR) 837 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 838 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 839 #else 840 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 841 __u8 *flags) 842 { 843 return 0; 844 } 845 846 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 847 { 848 } 849 #endif 850 851 #if IS_ENABLED(CONFIG_BT_LE) 852 int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 853 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 854 #else 855 static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 856 __u8 *flags) 857 { 858 return 0; 859 } 860 static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, 861 u16 flags) 862 { 863 } 864 #endif 865 866 /* ----- Inquiry cache ----- */ 867 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 868 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 869 870 static inline void discovery_init(struct hci_dev *hdev) 871 { 872 hdev->discovery.state = DISCOVERY_STOPPED; 873 INIT_LIST_HEAD(&hdev->discovery.all); 874 INIT_LIST_HEAD(&hdev->discovery.unknown); 875 INIT_LIST_HEAD(&hdev->discovery.resolve); 876 hdev->discovery.report_invalid_rssi = true; 877 hdev->discovery.rssi = HCI_RSSI_INVALID; 878 } 879 880 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 881 { 882 hdev->discovery.result_filtering = false; 883 hdev->discovery.report_invalid_rssi = true; 884 hdev->discovery.rssi = HCI_RSSI_INVALID; 885 hdev->discovery.uuid_count = 0; 886 kfree(hdev->discovery.uuids); 887 hdev->discovery.uuids = NULL; 888 } 889 890 bool hci_discovery_active(struct hci_dev *hdev); 891 892 void hci_discovery_set_state(struct hci_dev *hdev, int state); 893 894 static inline int inquiry_cache_empty(struct hci_dev *hdev) 895 { 896 return list_empty(&hdev->discovery.all); 897 } 898 899 static inline long inquiry_cache_age(struct hci_dev *hdev) 900 { 901 struct discovery_state *c = &hdev->discovery; 902 return jiffies - c->timestamp; 903 } 904 905 static inline long inquiry_entry_age(struct inquiry_entry *e) 906 { 907 return jiffies - e->timestamp; 908 } 909 910 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 911 bdaddr_t *bdaddr); 912 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 913 bdaddr_t *bdaddr); 914 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 915 bdaddr_t *bdaddr, 916 int state); 917 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 918 struct inquiry_entry *ie); 919 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 920 bool name_known); 921 void hci_inquiry_cache_flush(struct hci_dev *hdev); 922 923 /* ----- HCI Connections ----- */ 924 enum { 925 HCI_CONN_AUTH_PEND, 926 HCI_CONN_ENCRYPT_PEND, 927 HCI_CONN_RSWITCH_PEND, 928 HCI_CONN_MODE_CHANGE_PEND, 929 HCI_CONN_SCO_SETUP_PEND, 930 HCI_CONN_MGMT_CONNECTED, 931 HCI_CONN_SSP_ENABLED, 932 HCI_CONN_SC_ENABLED, 933 HCI_CONN_AES_CCM, 934 HCI_CONN_POWER_SAVE, 935 HCI_CONN_FLUSH_KEY, 936 HCI_CONN_ENCRYPT, 937 HCI_CONN_AUTH, 938 HCI_CONN_SECURE, 939 HCI_CONN_FIPS, 940 HCI_CONN_STK_ENCRYPT, 941 HCI_CONN_AUTH_INITIATOR, 942 HCI_CONN_DROP, 943 HCI_CONN_CANCEL, 944 HCI_CONN_PARAM_REMOVAL_PEND, 945 HCI_CONN_NEW_LINK_KEY, 946 HCI_CONN_SCANNING, 947 HCI_CONN_AUTH_FAILURE, 948 HCI_CONN_PER_ADV, 949 HCI_CONN_BIG_CREATED, 950 HCI_CONN_CREATE_CIS, 951 HCI_CONN_CREATE_BIG_SYNC, 952 HCI_CONN_BIG_SYNC, 953 HCI_CONN_BIG_SYNC_FAILED, 954 HCI_CONN_CREATE_PA_SYNC, 955 HCI_CONN_PA_SYNC, 956 HCI_CONN_PA_SYNC_FAILED, 957 }; 958 959 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 960 { 961 struct hci_dev *hdev = conn->hdev; 962 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 963 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 964 } 965 966 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 967 { 968 struct hci_dev *hdev = conn->hdev; 969 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 970 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 971 } 972 973 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 974 { 975 struct hci_conn_hash *h = &hdev->conn_hash; 976 list_add_tail_rcu(&c->list, &h->list); 977 switch (c->type) { 978 case ACL_LINK: 979 h->acl_num++; 980 break; 981 case LE_LINK: 982 h->le_num++; 983 if (c->role == HCI_ROLE_SLAVE) 984 h->le_num_peripheral++; 985 break; 986 case SCO_LINK: 987 case ESCO_LINK: 988 h->sco_num++; 989 break; 990 case ISO_LINK: 991 h->iso_num++; 992 break; 993 } 994 } 995 996 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 997 { 998 struct hci_conn_hash *h = &hdev->conn_hash; 999 1000 list_del_rcu(&c->list); 1001 synchronize_rcu(); 1002 1003 switch (c->type) { 1004 case ACL_LINK: 1005 h->acl_num--; 1006 break; 1007 case LE_LINK: 1008 h->le_num--; 1009 if (c->role == HCI_ROLE_SLAVE) 1010 h->le_num_peripheral--; 1011 break; 1012 case SCO_LINK: 1013 case ESCO_LINK: 1014 h->sco_num--; 1015 break; 1016 case ISO_LINK: 1017 h->iso_num--; 1018 break; 1019 } 1020 } 1021 1022 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 1023 { 1024 struct hci_conn_hash *h = &hdev->conn_hash; 1025 switch (type) { 1026 case ACL_LINK: 1027 return h->acl_num; 1028 case LE_LINK: 1029 return h->le_num; 1030 case SCO_LINK: 1031 case ESCO_LINK: 1032 return h->sco_num; 1033 case ISO_LINK: 1034 return h->iso_num; 1035 default: 1036 return 0; 1037 } 1038 } 1039 1040 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 1041 { 1042 struct hci_conn_hash *c = &hdev->conn_hash; 1043 1044 return c->acl_num + c->sco_num + c->le_num + c->iso_num; 1045 } 1046 1047 static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) 1048 { 1049 struct hci_conn_hash *h = &hdev->conn_hash; 1050 struct hci_conn *c; 1051 1052 rcu_read_lock(); 1053 1054 list_for_each_entry_rcu(c, &h->list, list) { 1055 if (c == conn) { 1056 rcu_read_unlock(); 1057 return true; 1058 } 1059 } 1060 rcu_read_unlock(); 1061 1062 return false; 1063 } 1064 1065 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 1066 { 1067 struct hci_conn_hash *h = &hdev->conn_hash; 1068 struct hci_conn *c; 1069 __u8 type = INVALID_LINK; 1070 1071 rcu_read_lock(); 1072 1073 list_for_each_entry_rcu(c, &h->list, list) { 1074 if (c->handle == handle) { 1075 type = c->type; 1076 break; 1077 } 1078 } 1079 1080 rcu_read_unlock(); 1081 1082 return type; 1083 } 1084 1085 static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, 1086 bdaddr_t *ba, __u8 bis) 1087 { 1088 struct hci_conn_hash *h = &hdev->conn_hash; 1089 struct hci_conn *c; 1090 1091 rcu_read_lock(); 1092 1093 list_for_each_entry_rcu(c, &h->list, list) { 1094 if (bacmp(&c->dst, ba) || c->type != ISO_LINK) 1095 continue; 1096 1097 if (c->iso_qos.bcast.bis == bis) { 1098 rcu_read_unlock(); 1099 return c; 1100 } 1101 } 1102 rcu_read_unlock(); 1103 1104 return NULL; 1105 } 1106 1107 static inline struct hci_conn *hci_conn_hash_lookup_sid(struct hci_dev *hdev, 1108 __u8 sid, 1109 bdaddr_t *dst, 1110 __u8 dst_type) 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->type != ISO_LINK || bacmp(&c->dst, dst) || 1119 c->dst_type != dst_type || c->sid != sid) 1120 continue; 1121 1122 rcu_read_unlock(); 1123 return c; 1124 } 1125 1126 rcu_read_unlock(); 1127 1128 return NULL; 1129 } 1130 1131 static inline struct hci_conn * 1132 hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, 1133 bdaddr_t *ba, 1134 __u8 big, __u8 bis) 1135 { 1136 struct hci_conn_hash *h = &hdev->conn_hash; 1137 struct hci_conn *c; 1138 1139 rcu_read_lock(); 1140 1141 list_for_each_entry_rcu(c, &h->list, list) { 1142 if (bacmp(&c->dst, ba) || c->type != ISO_LINK || 1143 !test_bit(HCI_CONN_PER_ADV, &c->flags)) 1144 continue; 1145 1146 if (c->iso_qos.bcast.big == big && 1147 c->iso_qos.bcast.bis == bis) { 1148 rcu_read_unlock(); 1149 return c; 1150 } 1151 } 1152 rcu_read_unlock(); 1153 1154 return NULL; 1155 } 1156 1157 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1158 __u16 handle) 1159 { 1160 struct hci_conn_hash *h = &hdev->conn_hash; 1161 struct hci_conn *c; 1162 1163 rcu_read_lock(); 1164 1165 list_for_each_entry_rcu(c, &h->list, list) { 1166 if (c->handle == handle) { 1167 rcu_read_unlock(); 1168 return c; 1169 } 1170 } 1171 rcu_read_unlock(); 1172 1173 return NULL; 1174 } 1175 1176 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1177 __u8 type, bdaddr_t *ba) 1178 { 1179 struct hci_conn_hash *h = &hdev->conn_hash; 1180 struct hci_conn *c; 1181 1182 rcu_read_lock(); 1183 1184 list_for_each_entry_rcu(c, &h->list, list) { 1185 if (c->type == type && !bacmp(&c->dst, ba)) { 1186 rcu_read_unlock(); 1187 return c; 1188 } 1189 } 1190 1191 rcu_read_unlock(); 1192 1193 return NULL; 1194 } 1195 1196 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1197 bdaddr_t *ba, 1198 __u8 ba_type) 1199 { 1200 struct hci_conn_hash *h = &hdev->conn_hash; 1201 struct hci_conn *c; 1202 1203 rcu_read_lock(); 1204 1205 list_for_each_entry_rcu(c, &h->list, list) { 1206 if (c->type != LE_LINK) 1207 continue; 1208 1209 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1210 rcu_read_unlock(); 1211 return c; 1212 } 1213 } 1214 1215 rcu_read_unlock(); 1216 1217 return NULL; 1218 } 1219 1220 static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, 1221 bdaddr_t *ba, 1222 __u8 ba_type, 1223 __u8 cig, 1224 __u8 id) 1225 { 1226 struct hci_conn_hash *h = &hdev->conn_hash; 1227 struct hci_conn *c; 1228 1229 rcu_read_lock(); 1230 1231 list_for_each_entry_rcu(c, &h->list, list) { 1232 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY)) 1233 continue; 1234 1235 /* Match CIG ID if set */ 1236 if (cig != c->iso_qos.ucast.cig) 1237 continue; 1238 1239 /* Match CIS ID if set */ 1240 if (id != c->iso_qos.ucast.cis) 1241 continue; 1242 1243 /* Match destination address if set */ 1244 if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { 1245 rcu_read_unlock(); 1246 return c; 1247 } 1248 } 1249 1250 rcu_read_unlock(); 1251 1252 return NULL; 1253 } 1254 1255 static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, 1256 __u8 handle) 1257 { 1258 struct hci_conn_hash *h = &hdev->conn_hash; 1259 struct hci_conn *c; 1260 1261 rcu_read_lock(); 1262 1263 list_for_each_entry_rcu(c, &h->list, list) { 1264 if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY)) 1265 continue; 1266 1267 if (handle == c->iso_qos.ucast.cig) { 1268 rcu_read_unlock(); 1269 return c; 1270 } 1271 } 1272 1273 rcu_read_unlock(); 1274 1275 return NULL; 1276 } 1277 1278 static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, 1279 __u8 handle) 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 != ISO_LINK) 1288 continue; 1289 1290 /* An ISO_LINK hcon with BDADDR_ANY as destination 1291 * address is a Broadcast connection. A Broadcast 1292 * slave connection is associated with a PA train, 1293 * so the sync_handle can be used to differentiate 1294 * from unicast. 1295 */ 1296 if (bacmp(&c->dst, BDADDR_ANY) && 1297 c->sync_handle == HCI_SYNC_HANDLE_INVALID) 1298 continue; 1299 1300 if (handle == c->iso_qos.bcast.big) { 1301 rcu_read_unlock(); 1302 return c; 1303 } 1304 } 1305 1306 rcu_read_unlock(); 1307 1308 return NULL; 1309 } 1310 1311 static inline struct hci_conn * 1312 hci_conn_hash_lookup_big_sync_pend(struct hci_dev *hdev, 1313 __u8 handle, __u8 num_bis) 1314 { 1315 struct hci_conn_hash *h = &hdev->conn_hash; 1316 struct hci_conn *c; 1317 1318 rcu_read_lock(); 1319 1320 list_for_each_entry_rcu(c, &h->list, list) { 1321 if (c->type != ISO_LINK) 1322 continue; 1323 1324 if (handle == c->iso_qos.bcast.big && num_bis == c->num_bis) { 1325 rcu_read_unlock(); 1326 return c; 1327 } 1328 } 1329 1330 rcu_read_unlock(); 1331 1332 return NULL; 1333 } 1334 1335 static inline struct hci_conn * 1336 hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state) 1337 { 1338 struct hci_conn_hash *h = &hdev->conn_hash; 1339 struct hci_conn *c; 1340 1341 rcu_read_lock(); 1342 1343 list_for_each_entry_rcu(c, &h->list, list) { 1344 if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK || 1345 c->state != state) 1346 continue; 1347 1348 if (handle == c->iso_qos.bcast.big) { 1349 rcu_read_unlock(); 1350 return c; 1351 } 1352 } 1353 1354 rcu_read_unlock(); 1355 1356 return NULL; 1357 } 1358 1359 static inline struct hci_conn * 1360 hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) 1361 { 1362 struct hci_conn_hash *h = &hdev->conn_hash; 1363 struct hci_conn *c; 1364 1365 rcu_read_lock(); 1366 1367 list_for_each_entry_rcu(c, &h->list, list) { 1368 if (c->type != ISO_LINK || 1369 !test_bit(HCI_CONN_PA_SYNC, &c->flags)) 1370 continue; 1371 1372 if (c->iso_qos.bcast.big == big) { 1373 rcu_read_unlock(); 1374 return c; 1375 } 1376 } 1377 rcu_read_unlock(); 1378 1379 return NULL; 1380 } 1381 1382 static inline struct hci_conn * 1383 hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) 1384 { 1385 struct hci_conn_hash *h = &hdev->conn_hash; 1386 struct hci_conn *c; 1387 1388 rcu_read_lock(); 1389 1390 list_for_each_entry_rcu(c, &h->list, list) { 1391 if (c->type != ISO_LINK) 1392 continue; 1393 1394 /* Ignore the listen hcon, we are looking 1395 * for the child hcon that was created as 1396 * a result of the PA sync established event. 1397 */ 1398 if (c->state == BT_LISTEN) 1399 continue; 1400 1401 if (c->sync_handle == sync_handle) { 1402 rcu_read_unlock(); 1403 return c; 1404 } 1405 } 1406 rcu_read_unlock(); 1407 1408 return NULL; 1409 } 1410 1411 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1412 __u8 type, __u16 state) 1413 { 1414 struct hci_conn_hash *h = &hdev->conn_hash; 1415 struct hci_conn *c; 1416 1417 rcu_read_lock(); 1418 1419 list_for_each_entry_rcu(c, &h->list, list) { 1420 if (c->type == type && c->state == state) { 1421 rcu_read_unlock(); 1422 return c; 1423 } 1424 } 1425 1426 rcu_read_unlock(); 1427 1428 return NULL; 1429 } 1430 1431 typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); 1432 static inline void hci_conn_hash_list_state(struct hci_dev *hdev, 1433 hci_conn_func_t func, __u8 type, 1434 __u16 state, void *data) 1435 { 1436 struct hci_conn_hash *h = &hdev->conn_hash; 1437 struct hci_conn *c; 1438 1439 if (!func) 1440 return; 1441 1442 rcu_read_lock(); 1443 1444 list_for_each_entry_rcu(c, &h->list, list) { 1445 if (c->type == type && c->state == state) 1446 func(c, data); 1447 } 1448 1449 rcu_read_unlock(); 1450 } 1451 1452 static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, 1453 hci_conn_func_t func, __u8 type, 1454 __u8 flag, void *data) 1455 { 1456 struct hci_conn_hash *h = &hdev->conn_hash; 1457 struct hci_conn *c; 1458 1459 if (!func) 1460 return; 1461 1462 rcu_read_lock(); 1463 1464 list_for_each_entry_rcu(c, &h->list, list) { 1465 if (c->type == type && test_bit(flag, &c->flags)) 1466 func(c, data); 1467 } 1468 1469 rcu_read_unlock(); 1470 } 1471 1472 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1473 { 1474 struct hci_conn_hash *h = &hdev->conn_hash; 1475 struct hci_conn *c; 1476 1477 rcu_read_lock(); 1478 1479 list_for_each_entry_rcu(c, &h->list, list) { 1480 if (c->type == LE_LINK && c->state == BT_CONNECT && 1481 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1482 rcu_read_unlock(); 1483 return c; 1484 } 1485 } 1486 1487 rcu_read_unlock(); 1488 1489 return NULL; 1490 } 1491 1492 /* Returns true if an le connection is in the scanning state */ 1493 static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) 1494 { 1495 struct hci_conn_hash *h = &hdev->conn_hash; 1496 struct hci_conn *c; 1497 1498 rcu_read_lock(); 1499 1500 list_for_each_entry_rcu(c, &h->list, list) { 1501 if (c->type == LE_LINK && c->state == BT_CONNECT && 1502 test_bit(HCI_CONN_SCANNING, &c->flags)) { 1503 rcu_read_unlock(); 1504 return true; 1505 } 1506 } 1507 1508 rcu_read_unlock(); 1509 1510 return false; 1511 } 1512 1513 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1514 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1515 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1516 bool hci_iso_setup_path(struct hci_conn *conn); 1517 int hci_le_create_cis_pending(struct hci_dev *hdev); 1518 int hci_pa_create_sync_pending(struct hci_dev *hdev); 1519 int hci_le_big_create_sync_pending(struct hci_dev *hdev); 1520 int hci_conn_check_create_cis(struct hci_conn *conn); 1521 1522 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1523 u8 role, u16 handle); 1524 struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, 1525 bdaddr_t *dst, u8 role); 1526 void hci_conn_del(struct hci_conn *conn); 1527 void hci_conn_hash_flush(struct hci_dev *hdev); 1528 1529 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1530 void hci_chan_del(struct hci_chan *chan); 1531 void hci_chan_list_flush(struct hci_conn *conn); 1532 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1533 1534 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1535 u8 dst_type, u8 sec_level, 1536 u16 conn_timeout, 1537 enum conn_reasons conn_reason); 1538 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1539 u8 dst_type, bool dst_resolved, u8 sec_level, 1540 u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); 1541 void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); 1542 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1543 u8 sec_level, u8 auth_type, 1544 enum conn_reasons conn_reason, u16 timeout); 1545 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1546 __u16 setting, struct bt_codec *codec, 1547 u16 timeout); 1548 struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, 1549 __u8 dst_type, struct bt_iso_qos *qos); 1550 struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, 1551 struct bt_iso_qos *qos, 1552 __u8 base_len, __u8 *base); 1553 struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, 1554 __u8 dst_type, struct bt_iso_qos *qos); 1555 struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, 1556 __u8 dst_type, struct bt_iso_qos *qos, 1557 __u8 data_len, __u8 *data); 1558 struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, 1559 __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); 1560 int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, 1561 struct bt_iso_qos *qos, 1562 __u16 sync_handle, __u8 num_bis, __u8 bis[]); 1563 int hci_conn_check_link_mode(struct hci_conn *conn); 1564 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1565 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1566 bool initiator); 1567 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1568 1569 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1570 1571 void hci_conn_failed(struct hci_conn *conn, u8 status); 1572 u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); 1573 1574 /* 1575 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1576 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1577 * working or anything else. They just guarantee that the object is available 1578 * and can be dereferenced. So you can use its locks, local variables and any 1579 * other constant data. 1580 * Before accessing runtime data, you _must_ lock the object and then check that 1581 * it is still running. As soon as you release the locks, the connection might 1582 * get dropped, though. 1583 * 1584 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1585 * how long the underlying connection is held. So every channel that runs on the 1586 * hci_conn object calls this to prevent the connection from disappearing. As 1587 * long as you hold a device, you must also guarantee that you have a valid 1588 * reference to the device via hci_conn_get() (or the initial reference from 1589 * hci_conn_add()). 1590 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1591 * break because nobody cares for that. But this means, we cannot use 1592 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1593 */ 1594 1595 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1596 { 1597 get_device(&conn->dev); 1598 return conn; 1599 } 1600 1601 static inline void hci_conn_put(struct hci_conn *conn) 1602 { 1603 put_device(&conn->dev); 1604 } 1605 1606 static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) 1607 { 1608 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1609 1610 atomic_inc(&conn->refcnt); 1611 cancel_delayed_work(&conn->disc_work); 1612 1613 return conn; 1614 } 1615 1616 static inline void hci_conn_drop(struct hci_conn *conn) 1617 { 1618 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1619 1620 if (atomic_dec_and_test(&conn->refcnt)) { 1621 unsigned long timeo; 1622 1623 switch (conn->type) { 1624 case ACL_LINK: 1625 case LE_LINK: 1626 cancel_delayed_work(&conn->idle_work); 1627 if (conn->state == BT_CONNECTED) { 1628 timeo = conn->disc_timeout; 1629 if (!conn->out) 1630 timeo *= 2; 1631 } else { 1632 timeo = 0; 1633 } 1634 break; 1635 1636 default: 1637 timeo = 0; 1638 break; 1639 } 1640 1641 cancel_delayed_work(&conn->disc_work); 1642 queue_delayed_work(conn->hdev->workqueue, 1643 &conn->disc_work, timeo); 1644 } 1645 } 1646 1647 /* ----- HCI Devices ----- */ 1648 static inline void hci_dev_put(struct hci_dev *d) 1649 { 1650 BT_DBG("%s orig refcnt %d", d->name, 1651 kref_read(&d->dev.kobj.kref)); 1652 1653 put_device(&d->dev); 1654 } 1655 1656 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1657 { 1658 BT_DBG("%s orig refcnt %d", d->name, 1659 kref_read(&d->dev.kobj.kref)); 1660 1661 get_device(&d->dev); 1662 return d; 1663 } 1664 1665 #define hci_dev_lock(d) mutex_lock(&d->lock) 1666 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1667 1668 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1669 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1670 1671 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1672 { 1673 return dev_get_drvdata(&hdev->dev); 1674 } 1675 1676 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1677 { 1678 dev_set_drvdata(&hdev->dev, data); 1679 } 1680 1681 static inline void *hci_get_priv(struct hci_dev *hdev) 1682 { 1683 return (char *)hdev + sizeof(*hdev); 1684 } 1685 1686 struct hci_dev *hci_dev_get(int index); 1687 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1688 1689 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1690 1691 static inline struct hci_dev *hci_alloc_dev(void) 1692 { 1693 return hci_alloc_dev_priv(0); 1694 } 1695 1696 void hci_free_dev(struct hci_dev *hdev); 1697 int hci_register_dev(struct hci_dev *hdev); 1698 void hci_unregister_dev(struct hci_dev *hdev); 1699 void hci_release_dev(struct hci_dev *hdev); 1700 int hci_register_suspend_notifier(struct hci_dev *hdev); 1701 int hci_unregister_suspend_notifier(struct hci_dev *hdev); 1702 int hci_suspend_dev(struct hci_dev *hdev); 1703 int hci_resume_dev(struct hci_dev *hdev); 1704 int hci_reset_dev(struct hci_dev *hdev); 1705 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1706 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1707 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1708 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1709 1710 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1711 { 1712 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1713 hdev->msft_opcode = opcode; 1714 #endif 1715 } 1716 1717 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1718 { 1719 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1720 hdev->aosp_capable = true; 1721 #endif 1722 } 1723 1724 static inline void hci_devcd_setup(struct hci_dev *hdev) 1725 { 1726 #ifdef CONFIG_DEV_COREDUMP 1727 INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); 1728 INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); 1729 skb_queue_head_init(&hdev->dump.dump_q); 1730 #endif 1731 } 1732 1733 int hci_dev_open(__u16 dev); 1734 int hci_dev_close(__u16 dev); 1735 int hci_dev_do_close(struct hci_dev *hdev); 1736 int hci_dev_reset(__u16 dev); 1737 int hci_dev_reset_stat(__u16 dev); 1738 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1739 int hci_get_dev_list(void __user *arg); 1740 int hci_get_dev_info(void __user *arg); 1741 int hci_get_conn_list(void __user *arg); 1742 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1743 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1744 int hci_inquiry(void __user *arg); 1745 1746 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1747 bdaddr_t *bdaddr, u8 type); 1748 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1749 struct list_head *list, bdaddr_t *bdaddr, 1750 u8 type); 1751 struct bdaddr_list_with_flags * 1752 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1753 u8 type); 1754 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1755 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1756 u8 type, u8 *peer_irk, u8 *local_irk); 1757 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1758 u8 type, u32 flags); 1759 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1760 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1761 u8 type); 1762 void hci_bdaddr_list_clear(struct list_head *list); 1763 1764 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1765 bdaddr_t *addr, u8 addr_type); 1766 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1767 bdaddr_t *addr, u8 addr_type); 1768 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1769 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1770 void hci_conn_params_free(struct hci_conn_params *param); 1771 1772 void hci_pend_le_list_del_init(struct hci_conn_params *param); 1773 void hci_pend_le_list_add(struct hci_conn_params *param, 1774 struct list_head *list); 1775 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1776 bdaddr_t *addr, 1777 u8 addr_type); 1778 1779 void hci_uuids_clear(struct hci_dev *hdev); 1780 1781 void hci_link_keys_clear(struct hci_dev *hdev); 1782 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1783 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1784 bdaddr_t *bdaddr, u8 *val, u8 type, 1785 u8 pin_len, bool *persistent); 1786 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1787 u8 addr_type, u8 type, u8 authenticated, 1788 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1789 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1790 u8 addr_type, u8 role); 1791 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1792 void hci_smp_ltks_clear(struct hci_dev *hdev); 1793 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1794 1795 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1796 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1797 u8 addr_type); 1798 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1799 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1800 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1801 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1802 void hci_blocked_keys_clear(struct hci_dev *hdev); 1803 void hci_smp_irks_clear(struct hci_dev *hdev); 1804 1805 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1806 1807 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1808 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1809 bdaddr_t *bdaddr, u8 bdaddr_type); 1810 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1811 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1812 u8 *hash256, u8 *rand256); 1813 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1814 u8 bdaddr_type); 1815 1816 void hci_adv_instances_clear(struct hci_dev *hdev); 1817 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1818 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1819 struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, 1820 u32 flags, u16 adv_data_len, u8 *adv_data, 1821 u16 scan_rsp_len, u8 *scan_rsp_data, 1822 u16 timeout, u16 duration, s8 tx_power, 1823 u32 min_interval, u32 max_interval, 1824 u8 mesh_handle); 1825 struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, 1826 u32 flags, u8 data_len, u8 *data, 1827 u32 min_interval, u32 max_interval); 1828 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1829 u16 adv_data_len, u8 *adv_data, 1830 u16 scan_rsp_len, u8 *scan_rsp_data); 1831 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1832 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1833 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1834 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1835 1836 void hci_adv_monitors_clear(struct hci_dev *hdev); 1837 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1838 int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1839 int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); 1840 int hci_remove_all_adv_monitor(struct hci_dev *hdev); 1841 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1842 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1843 1844 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1845 1846 void hci_init_sysfs(struct hci_dev *hdev); 1847 void hci_conn_init_sysfs(struct hci_conn *conn); 1848 void hci_conn_add_sysfs(struct hci_conn *conn); 1849 void hci_conn_del_sysfs(struct hci_conn *conn); 1850 1851 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1852 #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) 1853 1854 /* ----- LMP capabilities ----- */ 1855 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1856 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1857 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1858 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1859 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1860 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1861 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1862 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1863 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1864 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1865 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1866 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1867 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1868 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1869 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1870 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1871 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1872 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1873 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1874 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1875 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1876 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1877 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1878 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1879 1880 /* ----- Extended LMP capabilities ----- */ 1881 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1882 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1883 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1884 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1885 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1886 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1887 1888 /* ----- Host capabilities ----- */ 1889 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1890 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1891 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1892 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1893 1894 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1895 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1896 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1897 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1898 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1899 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1900 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1901 !adv->rpa_expired) 1902 1903 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1904 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1905 1906 #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) 1907 1908 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1909 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1910 1911 #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ 1912 !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \ 1913 &(dev)->quirks)) 1914 1915 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1916 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1917 1918 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1919 1920 #define privacy_mode_capable(dev) (ll_privacy_capable(dev) && \ 1921 (hdev->commands[39] & 0x04)) 1922 1923 #define read_key_size_capable(dev) \ 1924 ((dev)->commands[20] & 0x10 && \ 1925 !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks)) 1926 1927 /* Use enhanced synchronous connection if command is supported and its quirk 1928 * has not been set. 1929 */ 1930 #define enhanced_sync_conn_capable(dev) \ 1931 (((dev)->commands[29] & 0x08) && \ 1932 !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks)) 1933 1934 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1935 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1936 ((dev)->commands[37] & 0x40) && \ 1937 !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks)) 1938 1939 /* Use ext create connection if command is supported */ 1940 #define use_ext_conn(dev) (((dev)->commands[37] & 0x80) && \ 1941 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &(dev)->quirks)) 1942 /* Extended advertising support */ 1943 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1944 1945 /* Maximum advertising length */ 1946 #define max_adv_len(dev) \ 1947 (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) 1948 1949 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 1950 * 1951 * C24: Mandatory if the LE Controller supports Connection State and either 1952 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 1953 */ 1954 #define use_enhanced_conn_complete(dev) ((ll_privacy_capable(dev) || \ 1955 ext_adv_capable(dev)) && \ 1956 !test_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, \ 1957 &(dev)->quirks)) 1958 1959 /* Periodic advertising support */ 1960 #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) 1961 1962 /* CIS Master/Slave and BIS support */ 1963 #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) 1964 #define cis_capable(dev) \ 1965 (cis_central_capable(dev) || cis_peripheral_capable(dev)) 1966 #define cis_central_capable(dev) \ 1967 ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) 1968 #define cis_peripheral_capable(dev) \ 1969 ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) 1970 #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) 1971 #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) 1972 1973 #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ 1974 (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks))) 1975 1976 /* ----- HCI protocols ----- */ 1977 #define HCI_PROTO_DEFER 0x01 1978 1979 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1980 __u8 type, __u8 *flags) 1981 { 1982 switch (type) { 1983 case ACL_LINK: 1984 return l2cap_connect_ind(hdev, bdaddr); 1985 1986 case SCO_LINK: 1987 case ESCO_LINK: 1988 return sco_connect_ind(hdev, bdaddr, flags); 1989 1990 case ISO_LINK: 1991 return iso_connect_ind(hdev, bdaddr, flags); 1992 1993 default: 1994 BT_ERR("unknown link type %d", type); 1995 return -EINVAL; 1996 } 1997 } 1998 1999 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 2000 { 2001 if (conn->type != ACL_LINK && conn->type != LE_LINK) 2002 return HCI_ERROR_REMOTE_USER_TERM; 2003 2004 return l2cap_disconn_ind(conn); 2005 } 2006 2007 /* ----- HCI callbacks ----- */ 2008 struct hci_cb { 2009 struct list_head list; 2010 2011 char *name; 2012 2013 bool (*match) (struct hci_conn *conn); 2014 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 2015 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 2016 void (*security_cfm) (struct hci_conn *conn, __u8 status, 2017 __u8 encrypt); 2018 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 2019 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 2020 }; 2021 2022 static inline void hci_cb_lookup(struct hci_conn *conn, struct list_head *list) 2023 { 2024 struct hci_cb *cb, *cpy; 2025 2026 rcu_read_lock(); 2027 list_for_each_entry_rcu(cb, &hci_cb_list, list) { 2028 if (cb->match && cb->match(conn)) { 2029 cpy = kmalloc(sizeof(*cpy), GFP_ATOMIC); 2030 if (!cpy) 2031 break; 2032 2033 *cpy = *cb; 2034 INIT_LIST_HEAD(&cpy->list); 2035 list_add_rcu(&cpy->list, list); 2036 } 2037 } 2038 rcu_read_unlock(); 2039 } 2040 2041 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 2042 { 2043 struct list_head list; 2044 struct hci_cb *cb, *tmp; 2045 2046 INIT_LIST_HEAD(&list); 2047 hci_cb_lookup(conn, &list); 2048 2049 list_for_each_entry_safe(cb, tmp, &list, list) { 2050 if (cb->connect_cfm) 2051 cb->connect_cfm(conn, status); 2052 kfree(cb); 2053 } 2054 2055 if (conn->connect_cfm_cb) 2056 conn->connect_cfm_cb(conn, status); 2057 } 2058 2059 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 2060 { 2061 struct list_head list; 2062 struct hci_cb *cb, *tmp; 2063 2064 INIT_LIST_HEAD(&list); 2065 hci_cb_lookup(conn, &list); 2066 2067 list_for_each_entry_safe(cb, tmp, &list, list) { 2068 if (cb->disconn_cfm) 2069 cb->disconn_cfm(conn, reason); 2070 kfree(cb); 2071 } 2072 2073 if (conn->disconn_cfm_cb) 2074 conn->disconn_cfm_cb(conn, reason); 2075 } 2076 2077 static inline void hci_security_cfm(struct hci_conn *conn, __u8 status, 2078 __u8 encrypt) 2079 { 2080 struct list_head list; 2081 struct hci_cb *cb, *tmp; 2082 2083 INIT_LIST_HEAD(&list); 2084 hci_cb_lookup(conn, &list); 2085 2086 list_for_each_entry_safe(cb, tmp, &list, list) { 2087 if (cb->security_cfm) 2088 cb->security_cfm(conn, status, encrypt); 2089 kfree(cb); 2090 } 2091 2092 if (conn->security_cfm_cb) 2093 conn->security_cfm_cb(conn, status); 2094 } 2095 2096 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 2097 { 2098 __u8 encrypt; 2099 2100 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 2101 return; 2102 2103 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 2104 2105 hci_security_cfm(conn, status, encrypt); 2106 } 2107 2108 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 2109 { 2110 __u8 encrypt; 2111 2112 if (conn->state == BT_CONFIG) { 2113 if (!status) 2114 conn->state = BT_CONNECTED; 2115 2116 hci_connect_cfm(conn, status); 2117 hci_conn_drop(conn); 2118 return; 2119 } 2120 2121 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 2122 encrypt = 0x00; 2123 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 2124 encrypt = 0x02; 2125 else 2126 encrypt = 0x01; 2127 2128 if (!status) { 2129 if (conn->sec_level == BT_SECURITY_SDP) 2130 conn->sec_level = BT_SECURITY_LOW; 2131 2132 if (conn->pending_sec_level > conn->sec_level) 2133 conn->sec_level = conn->pending_sec_level; 2134 } 2135 2136 hci_security_cfm(conn, status, encrypt); 2137 } 2138 2139 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 2140 { 2141 struct list_head list; 2142 struct hci_cb *cb, *tmp; 2143 2144 INIT_LIST_HEAD(&list); 2145 hci_cb_lookup(conn, &list); 2146 2147 list_for_each_entry_safe(cb, tmp, &list, list) { 2148 if (cb->key_change_cfm) 2149 cb->key_change_cfm(conn, status); 2150 kfree(cb); 2151 } 2152 } 2153 2154 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 2155 __u8 role) 2156 { 2157 struct list_head list; 2158 struct hci_cb *cb, *tmp; 2159 2160 INIT_LIST_HEAD(&list); 2161 hci_cb_lookup(conn, &list); 2162 2163 list_for_each_entry_safe(cb, tmp, &list, list) { 2164 if (cb->role_switch_cfm) 2165 cb->role_switch_cfm(conn, status, role); 2166 kfree(cb); 2167 } 2168 } 2169 2170 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 2171 { 2172 if (addr_type != ADDR_LE_DEV_RANDOM) 2173 return false; 2174 2175 if ((bdaddr->b[5] & 0xc0) == 0x40) 2176 return true; 2177 2178 return false; 2179 } 2180 2181 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 2182 { 2183 if (addr_type == ADDR_LE_DEV_PUBLIC) 2184 return true; 2185 2186 /* Check for Random Static address type */ 2187 if ((addr->b[5] & 0xc0) == 0xc0) 2188 return true; 2189 2190 return false; 2191 } 2192 2193 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 2194 bdaddr_t *bdaddr, u8 addr_type) 2195 { 2196 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 2197 return NULL; 2198 2199 return hci_find_irk_by_rpa(hdev, bdaddr); 2200 } 2201 2202 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 2203 u16 to_multiplier) 2204 { 2205 u16 max_latency; 2206 2207 if (min > max) { 2208 BT_WARN("min %d > max %d", min, max); 2209 return -EINVAL; 2210 } 2211 2212 if (min < 6) { 2213 BT_WARN("min %d < 6", min); 2214 return -EINVAL; 2215 } 2216 2217 if (max > 3200) { 2218 BT_WARN("max %d > 3200", max); 2219 return -EINVAL; 2220 } 2221 2222 if (to_multiplier < 10) { 2223 BT_WARN("to_multiplier %d < 10", to_multiplier); 2224 return -EINVAL; 2225 } 2226 2227 if (to_multiplier > 3200) { 2228 BT_WARN("to_multiplier %d > 3200", to_multiplier); 2229 return -EINVAL; 2230 } 2231 2232 if (max >= to_multiplier * 8) { 2233 BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); 2234 return -EINVAL; 2235 } 2236 2237 max_latency = (to_multiplier * 4 / max) - 1; 2238 if (latency > 499) { 2239 BT_WARN("latency %d > 499", latency); 2240 return -EINVAL; 2241 } 2242 2243 if (latency > max_latency) { 2244 BT_WARN("latency %d > max_latency %d", latency, max_latency); 2245 return -EINVAL; 2246 } 2247 2248 return 0; 2249 } 2250 2251 int hci_register_cb(struct hci_cb *hcb); 2252 int hci_unregister_cb(struct hci_cb *hcb); 2253 2254 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 2255 const void *param); 2256 2257 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 2258 const void *param); 2259 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 2260 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 2261 void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); 2262 2263 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 2264 void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); 2265 2266 u32 hci_conn_get_phy(struct hci_conn *conn); 2267 2268 /* ----- HCI Sockets ----- */ 2269 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 2270 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 2271 int flag, struct sock *skip_sk); 2272 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 2273 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 2274 void *data, u16 data_len, ktime_t tstamp, 2275 int flag, struct sock *skip_sk); 2276 2277 void hci_sock_dev_event(struct hci_dev *hdev, int event); 2278 2279 #define HCI_MGMT_VAR_LEN BIT(0) 2280 #define HCI_MGMT_NO_HDEV BIT(1) 2281 #define HCI_MGMT_UNTRUSTED BIT(2) 2282 #define HCI_MGMT_UNCONFIGURED BIT(3) 2283 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 2284 2285 struct hci_mgmt_handler { 2286 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 2287 u16 data_len); 2288 size_t data_len; 2289 unsigned long flags; 2290 }; 2291 2292 struct hci_mgmt_chan { 2293 struct list_head list; 2294 unsigned short channel; 2295 size_t handler_count; 2296 const struct hci_mgmt_handler *handlers; 2297 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 2298 }; 2299 2300 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 2301 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 2302 2303 /* Management interface */ 2304 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 2305 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 2306 BIT(BDADDR_LE_RANDOM)) 2307 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 2308 BIT(BDADDR_LE_PUBLIC) | \ 2309 BIT(BDADDR_LE_RANDOM)) 2310 2311 /* These LE scan and inquiry parameters were chosen according to LE General 2312 * Discovery Procedure specification. 2313 */ 2314 #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ 2315 #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ 2316 #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ 2317 #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ 2318 #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ 2319 #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ 2320 #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ 2321 #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ 2322 #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ 2323 #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ 2324 #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ 2325 #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ 2326 #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ 2327 #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ 2328 #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ 2329 #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ 2330 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 2331 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 2332 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 2333 #define DISCOV_BREDR_INQUIRY_LEN 0x08 2334 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 2335 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 2336 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 2337 #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ 2338 #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ 2339 #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ 2340 #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ 2341 #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) 2342 2343 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 2344 2345 void mgmt_fill_version_info(void *ver); 2346 int mgmt_new_settings(struct hci_dev *hdev); 2347 void mgmt_index_added(struct hci_dev *hdev); 2348 void mgmt_index_removed(struct hci_dev *hdev); 2349 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 2350 void mgmt_power_on(struct hci_dev *hdev, int err); 2351 void __mgmt_power_off(struct hci_dev *hdev); 2352 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 2353 bool persistent); 2354 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 2355 u8 *name, u8 name_len); 2356 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 2357 u8 link_type, u8 addr_type, u8 reason, 2358 bool mgmt_connected); 2359 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 2360 u8 link_type, u8 addr_type, u8 status); 2361 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, 2362 u8 status); 2363 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 2364 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2365 u8 status); 2366 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2367 u8 status); 2368 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2369 u8 link_type, u8 addr_type, u32 value, 2370 u8 confirm_hint); 2371 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2372 u8 link_type, u8 addr_type, u8 status); 2373 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2374 u8 link_type, u8 addr_type, u8 status); 2375 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 2376 u8 link_type, u8 addr_type); 2377 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2378 u8 link_type, u8 addr_type, u8 status); 2379 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 2380 u8 link_type, u8 addr_type, u8 status); 2381 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 2382 u8 link_type, u8 addr_type, u32 passkey, 2383 u8 entered); 2384 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 2385 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 2386 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 2387 u8 status); 2388 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 2389 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 2390 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 2391 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2392 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 2393 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, 2394 u64 instant); 2395 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 2396 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 2397 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 2398 void mgmt_suspending(struct hci_dev *hdev, u8 state); 2399 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 2400 u8 addr_type); 2401 bool mgmt_powering_down(struct hci_dev *hdev); 2402 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 2403 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 2404 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 2405 bool persistent); 2406 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 2407 u8 bdaddr_type, u8 store_hint, u16 min_interval, 2408 u16 max_interval, u16 latency, u16 timeout); 2409 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 2410 bool mgmt_get_connectable(struct hci_dev *hdev); 2411 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 2412 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 2413 u8 instance); 2414 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 2415 u8 instance); 2416 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 2417 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 2418 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, 2419 bdaddr_t *bdaddr, u8 addr_type); 2420 2421 int hci_abort_conn(struct hci_conn *conn, u8 reason); 2422 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 2423 u16 to_multiplier); 2424 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 2425 __u8 ltk[16], __u8 key_size); 2426 2427 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 2428 u8 *bdaddr_type); 2429 2430 #define SCO_AIRMODE_MASK 0x0003 2431 #define SCO_AIRMODE_CVSD 0x0000 2432 #define SCO_AIRMODE_TRANSP 0x0003 2433 2434 #define LOCAL_CODEC_ACL_MASK BIT(0) 2435 #define LOCAL_CODEC_SCO_MASK BIT(1) 2436 2437 #define TRANSPORT_TYPE_MAX 0x04 2438 2439 #endif /* __HCI_CORE_H */ 2440