1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23 */ 24 25 #ifndef __HCI_CORE_H 26 #define __HCI_CORE_H 27 28 #include <linux/idr.h> 29 #include <linux/leds.h> 30 #include <linux/rculist.h> 31 32 #include <net/bluetooth/hci.h> 33 #include <net/bluetooth/hci_sync.h> 34 #include <net/bluetooth/hci_sock.h> 35 36 /* HCI priority */ 37 #define HCI_PRIO_MAX 7 38 39 /* HCI Core structures */ 40 struct inquiry_data { 41 bdaddr_t bdaddr; 42 __u8 pscan_rep_mode; 43 __u8 pscan_period_mode; 44 __u8 pscan_mode; 45 __u8 dev_class[3]; 46 __le16 clock_offset; 47 __s8 rssi; 48 __u8 ssp_mode; 49 }; 50 51 struct inquiry_entry { 52 struct list_head all; /* inq_cache.all */ 53 struct list_head list; /* unknown or resolve */ 54 enum { 55 NAME_NOT_KNOWN, 56 NAME_NEEDED, 57 NAME_PENDING, 58 NAME_KNOWN, 59 } name_state; 60 __u32 timestamp; 61 struct inquiry_data data; 62 }; 63 64 struct discovery_state { 65 int type; 66 enum { 67 DISCOVERY_STOPPED, 68 DISCOVERY_STARTING, 69 DISCOVERY_FINDING, 70 DISCOVERY_RESOLVING, 71 DISCOVERY_STOPPING, 72 } state; 73 struct list_head all; /* All devices found during inquiry */ 74 struct list_head unknown; /* Name state not known */ 75 struct list_head resolve; /* Name needs to be resolved */ 76 __u32 timestamp; 77 bdaddr_t last_adv_addr; 78 u8 last_adv_addr_type; 79 s8 last_adv_rssi; 80 u32 last_adv_flags; 81 u8 last_adv_data[HCI_MAX_AD_LENGTH]; 82 u8 last_adv_data_len; 83 bool report_invalid_rssi; 84 bool result_filtering; 85 bool limited; 86 s8 rssi; 87 u16 uuid_count; 88 u8 (*uuids)[16]; 89 unsigned long scan_start; 90 unsigned long scan_duration; 91 unsigned long name_resolve_timeout; 92 }; 93 94 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 95 96 enum suspend_tasks { 97 SUSPEND_PAUSE_DISCOVERY, 98 SUSPEND_UNPAUSE_DISCOVERY, 99 100 SUSPEND_PAUSE_ADVERTISING, 101 SUSPEND_UNPAUSE_ADVERTISING, 102 103 SUSPEND_SCAN_DISABLE, 104 SUSPEND_SCAN_ENABLE, 105 SUSPEND_DISCONNECTING, 106 107 SUSPEND_POWERING_DOWN, 108 109 SUSPEND_PREPARE_NOTIFIER, 110 111 SUSPEND_SET_ADV_FILTER, 112 __SUSPEND_NUM_TASKS 113 }; 114 115 enum suspended_state { 116 BT_RUNNING = 0, 117 BT_SUSPEND_DISCONNECT, 118 BT_SUSPEND_CONFIGURE_WAKE, 119 }; 120 121 struct hci_conn_hash { 122 struct list_head list; 123 unsigned int acl_num; 124 unsigned int amp_num; 125 unsigned int sco_num; 126 unsigned int le_num; 127 unsigned int le_num_peripheral; 128 }; 129 130 struct bdaddr_list { 131 struct list_head list; 132 bdaddr_t bdaddr; 133 u8 bdaddr_type; 134 }; 135 136 struct codec_list { 137 struct list_head list; 138 u8 id; 139 __u16 cid; 140 __u16 vid; 141 u8 transport; 142 u8 num_caps; 143 u32 len; 144 struct hci_codec_caps caps[]; 145 }; 146 147 struct bdaddr_list_with_irk { 148 struct list_head list; 149 bdaddr_t bdaddr; 150 u8 bdaddr_type; 151 u8 peer_irk[16]; 152 u8 local_irk[16]; 153 }; 154 155 enum hci_conn_flags { 156 HCI_CONN_FLAG_REMOTE_WAKEUP, 157 HCI_CONN_FLAG_DEVICE_PRIVACY, 158 159 __HCI_CONN_NUM_FLAGS, 160 }; 161 162 /* Make sure number of flags doesn't exceed sizeof(current_flags) */ 163 static_assert(__HCI_CONN_NUM_FLAGS < 32); 164 165 struct bdaddr_list_with_flags { 166 struct list_head list; 167 bdaddr_t bdaddr; 168 u8 bdaddr_type; 169 DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS); 170 }; 171 172 struct bt_uuid { 173 struct list_head list; 174 u8 uuid[16]; 175 u8 size; 176 u8 svc_hint; 177 }; 178 179 struct blocked_key { 180 struct list_head list; 181 struct rcu_head rcu; 182 u8 type; 183 u8 val[16]; 184 }; 185 186 struct smp_csrk { 187 bdaddr_t bdaddr; 188 u8 bdaddr_type; 189 u8 type; 190 u8 val[16]; 191 }; 192 193 struct smp_ltk { 194 struct list_head list; 195 struct rcu_head rcu; 196 bdaddr_t bdaddr; 197 u8 bdaddr_type; 198 u8 authenticated; 199 u8 type; 200 u8 enc_size; 201 __le16 ediv; 202 __le64 rand; 203 u8 val[16]; 204 }; 205 206 struct smp_irk { 207 struct list_head list; 208 struct rcu_head rcu; 209 bdaddr_t rpa; 210 bdaddr_t bdaddr; 211 u8 addr_type; 212 u8 val[16]; 213 }; 214 215 struct link_key { 216 struct list_head list; 217 struct rcu_head rcu; 218 bdaddr_t bdaddr; 219 u8 type; 220 u8 val[HCI_LINK_KEY_SIZE]; 221 u8 pin_len; 222 }; 223 224 struct oob_data { 225 struct list_head list; 226 bdaddr_t bdaddr; 227 u8 bdaddr_type; 228 u8 present; 229 u8 hash192[16]; 230 u8 rand192[16]; 231 u8 hash256[16]; 232 u8 rand256[16]; 233 }; 234 235 struct adv_info { 236 struct list_head list; 237 bool enabled; 238 bool pending; 239 __u8 instance; 240 __u32 flags; 241 __u16 timeout; 242 __u16 remaining_time; 243 __u16 duration; 244 __u16 adv_data_len; 245 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 246 __u16 scan_rsp_len; 247 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 248 __s8 tx_power; 249 __u32 min_interval; 250 __u32 max_interval; 251 bdaddr_t random_addr; 252 bool rpa_expired; 253 struct delayed_work rpa_expired_cb; 254 }; 255 256 #define HCI_MAX_ADV_INSTANCES 5 257 #define HCI_DEFAULT_ADV_DURATION 2 258 259 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 260 261 struct adv_pattern { 262 struct list_head list; 263 __u8 ad_type; 264 __u8 offset; 265 __u8 length; 266 __u8 value[HCI_MAX_AD_LENGTH]; 267 }; 268 269 struct adv_rssi_thresholds { 270 __s8 low_threshold; 271 __s8 high_threshold; 272 __u16 low_threshold_timeout; 273 __u16 high_threshold_timeout; 274 __u8 sampling_period; 275 }; 276 277 struct adv_monitor { 278 struct list_head patterns; 279 struct adv_rssi_thresholds rssi; 280 __u16 handle; 281 282 enum { 283 ADV_MONITOR_STATE_NOT_REGISTERED, 284 ADV_MONITOR_STATE_REGISTERED, 285 ADV_MONITOR_STATE_OFFLOADED 286 } state; 287 }; 288 289 #define HCI_MIN_ADV_MONITOR_HANDLE 1 290 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 291 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 292 #define HCI_ADV_MONITOR_EXT_NONE 1 293 #define HCI_ADV_MONITOR_EXT_MSFT 2 294 295 #define HCI_MAX_SHORT_NAME_LENGTH 10 296 297 /* Min encryption key size to match with SMP */ 298 #define HCI_MIN_ENC_KEY_SIZE 7 299 300 /* Default LE RPA expiry time, 15 minutes */ 301 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 302 303 /* Default min/max age of connection information (1s/3s) */ 304 #define DEFAULT_CONN_INFO_MIN_AGE 1000 305 #define DEFAULT_CONN_INFO_MAX_AGE 3000 306 /* Default authenticated payload timeout 30s */ 307 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 308 309 struct amp_assoc { 310 __u16 len; 311 __u16 offset; 312 __u16 rem_len; 313 __u16 len_so_far; 314 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 315 }; 316 317 #define HCI_MAX_PAGES 3 318 319 struct hci_dev { 320 struct list_head list; 321 struct mutex lock; 322 323 char name[8]; 324 unsigned long flags; 325 __u16 id; 326 __u8 bus; 327 __u8 dev_type; 328 bdaddr_t bdaddr; 329 bdaddr_t setup_addr; 330 bdaddr_t public_addr; 331 bdaddr_t random_addr; 332 bdaddr_t static_addr; 333 __u8 adv_addr_type; 334 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 335 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 336 __u8 eir[HCI_MAX_EIR_LENGTH]; 337 __u16 appearance; 338 __u8 dev_class[3]; 339 __u8 major_class; 340 __u8 minor_class; 341 __u8 max_page; 342 __u8 features[HCI_MAX_PAGES][8]; 343 __u8 le_features[8]; 344 __u8 le_accept_list_size; 345 __u8 le_resolv_list_size; 346 __u8 le_num_of_adv_sets; 347 __u8 le_states[8]; 348 __u8 commands[64]; 349 __u8 hci_ver; 350 __u16 hci_rev; 351 __u8 lmp_ver; 352 __u16 manufacturer; 353 __u16 lmp_subver; 354 __u16 voice_setting; 355 __u8 num_iac; 356 __u16 stored_max_keys; 357 __u16 stored_num_keys; 358 __u8 io_capability; 359 __s8 inq_tx_power; 360 __u8 err_data_reporting; 361 __u16 page_scan_interval; 362 __u16 page_scan_window; 363 __u8 page_scan_type; 364 __u8 le_adv_channel_map; 365 __u16 le_adv_min_interval; 366 __u16 le_adv_max_interval; 367 __u8 le_scan_type; 368 __u16 le_scan_interval; 369 __u16 le_scan_window; 370 __u16 le_scan_int_suspend; 371 __u16 le_scan_window_suspend; 372 __u16 le_scan_int_discovery; 373 __u16 le_scan_window_discovery; 374 __u16 le_scan_int_adv_monitor; 375 __u16 le_scan_window_adv_monitor; 376 __u16 le_scan_int_connect; 377 __u16 le_scan_window_connect; 378 __u16 le_conn_min_interval; 379 __u16 le_conn_max_interval; 380 __u16 le_conn_latency; 381 __u16 le_supv_timeout; 382 __u16 le_def_tx_len; 383 __u16 le_def_tx_time; 384 __u16 le_max_tx_len; 385 __u16 le_max_tx_time; 386 __u16 le_max_rx_len; 387 __u16 le_max_rx_time; 388 __u8 le_max_key_size; 389 __u8 le_min_key_size; 390 __u16 discov_interleaved_timeout; 391 __u16 conn_info_min_age; 392 __u16 conn_info_max_age; 393 __u16 auth_payload_timeout; 394 __u8 min_enc_key_size; 395 __u8 max_enc_key_size; 396 __u8 pairing_opts; 397 __u8 ssp_debug_mode; 398 __u8 hw_error_code; 399 __u32 clock; 400 __u16 advmon_allowlist_duration; 401 __u16 advmon_no_filter_duration; 402 __u8 enable_advmon_interleave_scan; 403 404 __u16 devid_source; 405 __u16 devid_vendor; 406 __u16 devid_product; 407 __u16 devid_version; 408 409 __u8 def_page_scan_type; 410 __u16 def_page_scan_int; 411 __u16 def_page_scan_window; 412 __u8 def_inq_scan_type; 413 __u16 def_inq_scan_int; 414 __u16 def_inq_scan_window; 415 __u16 def_br_lsto; 416 __u16 def_page_timeout; 417 __u16 def_multi_adv_rotation_duration; 418 __u16 def_le_autoconnect_timeout; 419 __s8 min_le_tx_power; 420 __s8 max_le_tx_power; 421 422 __u16 pkt_type; 423 __u16 esco_type; 424 __u16 link_policy; 425 __u16 link_mode; 426 427 __u32 idle_timeout; 428 __u16 sniff_min_interval; 429 __u16 sniff_max_interval; 430 431 __u8 amp_status; 432 __u32 amp_total_bw; 433 __u32 amp_max_bw; 434 __u32 amp_min_latency; 435 __u32 amp_max_pdu; 436 __u8 amp_type; 437 __u16 amp_pal_cap; 438 __u16 amp_assoc_size; 439 __u32 amp_max_flush_to; 440 __u32 amp_be_flush_to; 441 442 struct amp_assoc loc_assoc; 443 444 __u8 flow_ctl_mode; 445 446 unsigned int auto_accept_delay; 447 448 unsigned long quirks; 449 450 atomic_t cmd_cnt; 451 unsigned int acl_cnt; 452 unsigned int sco_cnt; 453 unsigned int le_cnt; 454 455 unsigned int acl_mtu; 456 unsigned int sco_mtu; 457 unsigned int le_mtu; 458 unsigned int acl_pkts; 459 unsigned int sco_pkts; 460 unsigned int le_pkts; 461 462 __u16 block_len; 463 __u16 block_mtu; 464 __u16 num_blocks; 465 __u16 block_cnt; 466 467 unsigned long acl_last_tx; 468 unsigned long sco_last_tx; 469 unsigned long le_last_tx; 470 471 __u8 le_tx_def_phys; 472 __u8 le_rx_def_phys; 473 474 struct workqueue_struct *workqueue; 475 struct workqueue_struct *req_workqueue; 476 477 struct work_struct power_on; 478 struct delayed_work power_off; 479 struct work_struct error_reset; 480 struct work_struct cmd_sync_work; 481 struct list_head cmd_sync_work_list; 482 struct mutex cmd_sync_work_lock; 483 struct work_struct cmd_sync_cancel_work; 484 485 __u16 discov_timeout; 486 struct delayed_work discov_off; 487 488 struct delayed_work service_cache; 489 490 struct delayed_work cmd_timer; 491 struct delayed_work ncmd_timer; 492 493 struct work_struct rx_work; 494 struct work_struct cmd_work; 495 struct work_struct tx_work; 496 497 struct work_struct discov_update; 498 struct work_struct scan_update; 499 struct delayed_work le_scan_disable; 500 struct delayed_work le_scan_restart; 501 502 struct sk_buff_head rx_q; 503 struct sk_buff_head raw_q; 504 struct sk_buff_head cmd_q; 505 506 struct sk_buff *sent_cmd; 507 508 struct mutex req_lock; 509 wait_queue_head_t req_wait_q; 510 __u32 req_status; 511 __u32 req_result; 512 struct sk_buff *req_skb; 513 514 void *smp_data; 515 void *smp_bredr_data; 516 517 struct discovery_state discovery; 518 519 int discovery_old_state; 520 bool discovery_paused; 521 int advertising_old_state; 522 bool advertising_paused; 523 524 struct notifier_block suspend_notifier; 525 enum suspended_state suspend_state_next; 526 enum suspended_state suspend_state; 527 bool scanning_paused; 528 bool suspended; 529 u8 wake_reason; 530 bdaddr_t wake_addr; 531 u8 wake_addr_type; 532 533 struct hci_conn_hash conn_hash; 534 535 struct list_head mgmt_pending; 536 struct list_head reject_list; 537 struct list_head accept_list; 538 struct list_head uuids; 539 struct list_head link_keys; 540 struct list_head long_term_keys; 541 struct list_head identity_resolving_keys; 542 struct list_head remote_oob_data; 543 struct list_head le_accept_list; 544 struct list_head le_resolv_list; 545 struct list_head le_conn_params; 546 struct list_head pend_le_conns; 547 struct list_head pend_le_reports; 548 struct list_head blocked_keys; 549 struct list_head local_codecs; 550 551 struct hci_dev_stats stat; 552 553 atomic_t promisc; 554 555 const char *hw_info; 556 const char *fw_info; 557 struct dentry *debugfs; 558 559 struct device dev; 560 561 struct rfkill *rfkill; 562 563 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 564 DECLARE_BITMAP(conn_flags, __HCI_CONN_NUM_FLAGS); 565 566 __s8 adv_tx_power; 567 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 568 __u8 adv_data_len; 569 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 570 __u8 scan_rsp_data_len; 571 572 struct list_head adv_instances; 573 unsigned int adv_instance_cnt; 574 __u8 cur_adv_instance; 575 __u16 adv_instance_timeout; 576 struct delayed_work adv_instance_expire; 577 578 struct idr adv_monitors_idr; 579 unsigned int adv_monitors_cnt; 580 581 __u8 irk[16]; 582 __u32 rpa_timeout; 583 struct delayed_work rpa_expired; 584 bdaddr_t rpa; 585 586 enum { 587 INTERLEAVE_SCAN_NONE, 588 INTERLEAVE_SCAN_NO_FILTER, 589 INTERLEAVE_SCAN_ALLOWLIST 590 } interleave_scan_state; 591 592 struct delayed_work interleave_scan; 593 594 #if IS_ENABLED(CONFIG_BT_LEDS) 595 struct led_trigger *power_led; 596 #endif 597 598 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 599 __u16 msft_opcode; 600 void *msft_data; 601 bool msft_curve_validity; 602 #endif 603 604 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 605 bool aosp_capable; 606 bool aosp_quality_report; 607 #endif 608 609 int (*open)(struct hci_dev *hdev); 610 int (*close)(struct hci_dev *hdev); 611 int (*flush)(struct hci_dev *hdev); 612 int (*setup)(struct hci_dev *hdev); 613 int (*shutdown)(struct hci_dev *hdev); 614 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 615 void (*notify)(struct hci_dev *hdev, unsigned int evt); 616 void (*hw_error)(struct hci_dev *hdev, u8 code); 617 int (*post_init)(struct hci_dev *hdev); 618 int (*set_diag)(struct hci_dev *hdev, bool enable); 619 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 620 void (*cmd_timeout)(struct hci_dev *hdev); 621 bool (*wakeup)(struct hci_dev *hdev); 622 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 623 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 624 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 625 struct bt_codec *codec, __u8 *vnd_len, 626 __u8 **vnd_data); 627 }; 628 629 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 630 631 enum conn_reasons { 632 CONN_REASON_PAIR_DEVICE, 633 CONN_REASON_L2CAP_CHAN, 634 CONN_REASON_SCO_CONNECT, 635 }; 636 637 struct hci_conn { 638 struct list_head list; 639 640 atomic_t refcnt; 641 642 bdaddr_t dst; 643 __u8 dst_type; 644 bdaddr_t src; 645 __u8 src_type; 646 bdaddr_t init_addr; 647 __u8 init_addr_type; 648 bdaddr_t resp_addr; 649 __u8 resp_addr_type; 650 __u8 adv_instance; 651 __u16 handle; 652 __u16 state; 653 __u8 mode; 654 __u8 type; 655 __u8 role; 656 bool out; 657 __u8 attempt; 658 __u8 dev_class[3]; 659 __u8 features[HCI_MAX_PAGES][8]; 660 __u16 pkt_type; 661 __u16 link_policy; 662 __u8 key_type; 663 __u8 auth_type; 664 __u8 sec_level; 665 __u8 pending_sec_level; 666 __u8 pin_length; 667 __u8 enc_key_size; 668 __u8 io_capability; 669 __u32 passkey_notify; 670 __u8 passkey_entered; 671 __u16 disc_timeout; 672 __u16 conn_timeout; 673 __u16 setting; 674 __u16 auth_payload_timeout; 675 __u16 le_conn_min_interval; 676 __u16 le_conn_max_interval; 677 __u16 le_conn_interval; 678 __u16 le_conn_latency; 679 __u16 le_supv_timeout; 680 __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 681 __u8 le_adv_data_len; 682 __u8 le_tx_phy; 683 __u8 le_rx_phy; 684 __s8 rssi; 685 __s8 tx_power; 686 __s8 max_tx_power; 687 unsigned long flags; 688 689 enum conn_reasons conn_reason; 690 691 __u32 clock; 692 __u16 clock_accuracy; 693 694 unsigned long conn_info_timestamp; 695 696 __u8 remote_cap; 697 __u8 remote_auth; 698 __u8 remote_id; 699 700 unsigned int sent; 701 702 struct sk_buff_head data_q; 703 struct list_head chan_list; 704 705 struct delayed_work disc_work; 706 struct delayed_work auto_accept_work; 707 struct delayed_work idle_work; 708 struct delayed_work le_conn_timeout; 709 struct work_struct le_scan_cleanup; 710 711 struct device dev; 712 struct dentry *debugfs; 713 714 struct hci_dev *hdev; 715 void *l2cap_data; 716 void *sco_data; 717 struct amp_mgr *amp_mgr; 718 719 struct hci_conn *link; 720 struct bt_codec codec; 721 722 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 723 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 724 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 725 }; 726 727 struct hci_chan { 728 struct list_head list; 729 __u16 handle; 730 struct hci_conn *conn; 731 struct sk_buff_head data_q; 732 unsigned int sent; 733 __u8 state; 734 bool amp; 735 }; 736 737 struct hci_conn_params { 738 struct list_head list; 739 struct list_head action; 740 741 bdaddr_t addr; 742 u8 addr_type; 743 744 u16 conn_min_interval; 745 u16 conn_max_interval; 746 u16 conn_latency; 747 u16 supervision_timeout; 748 749 enum { 750 HCI_AUTO_CONN_DISABLED, 751 HCI_AUTO_CONN_REPORT, 752 HCI_AUTO_CONN_DIRECT, 753 HCI_AUTO_CONN_ALWAYS, 754 HCI_AUTO_CONN_LINK_LOSS, 755 HCI_AUTO_CONN_EXPLICIT, 756 } auto_connect; 757 758 struct hci_conn *conn; 759 bool explicit_connect; 760 DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS); 761 u8 privacy_mode; 762 }; 763 764 extern struct list_head hci_dev_list; 765 extern struct list_head hci_cb_list; 766 extern rwlock_t hci_dev_list_lock; 767 extern struct mutex hci_cb_list_lock; 768 769 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 770 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 771 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 772 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 773 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 774 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 775 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 776 777 #define hci_dev_clear_volatile_flags(hdev) \ 778 do { \ 779 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 780 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 781 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 782 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 783 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ 784 } while (0) 785 786 #define hci_dev_le_state_simultaneous(hdev) \ 787 (test_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks) && \ 788 (hdev->le_states[4] & 0x08) && /* Central */ \ 789 (hdev->le_states[4] & 0x40) && /* Peripheral */ \ 790 (hdev->le_states[3] & 0x10)) /* Simultaneous */ 791 792 /* ----- HCI interface to upper protocols ----- */ 793 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 794 int l2cap_disconn_ind(struct hci_conn *hcon); 795 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 796 797 #if IS_ENABLED(CONFIG_BT_BREDR) 798 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 799 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 800 #else 801 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 802 __u8 *flags) 803 { 804 return 0; 805 } 806 807 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 808 { 809 } 810 #endif 811 812 /* ----- Inquiry cache ----- */ 813 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 814 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 815 816 static inline void discovery_init(struct hci_dev *hdev) 817 { 818 hdev->discovery.state = DISCOVERY_STOPPED; 819 INIT_LIST_HEAD(&hdev->discovery.all); 820 INIT_LIST_HEAD(&hdev->discovery.unknown); 821 INIT_LIST_HEAD(&hdev->discovery.resolve); 822 hdev->discovery.report_invalid_rssi = true; 823 hdev->discovery.rssi = HCI_RSSI_INVALID; 824 } 825 826 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 827 { 828 hdev->discovery.result_filtering = false; 829 hdev->discovery.report_invalid_rssi = true; 830 hdev->discovery.rssi = HCI_RSSI_INVALID; 831 hdev->discovery.uuid_count = 0; 832 kfree(hdev->discovery.uuids); 833 hdev->discovery.uuids = NULL; 834 hdev->discovery.scan_start = 0; 835 hdev->discovery.scan_duration = 0; 836 } 837 838 bool hci_discovery_active(struct hci_dev *hdev); 839 840 void hci_discovery_set_state(struct hci_dev *hdev, int state); 841 842 static inline int inquiry_cache_empty(struct hci_dev *hdev) 843 { 844 return list_empty(&hdev->discovery.all); 845 } 846 847 static inline long inquiry_cache_age(struct hci_dev *hdev) 848 { 849 struct discovery_state *c = &hdev->discovery; 850 return jiffies - c->timestamp; 851 } 852 853 static inline long inquiry_entry_age(struct inquiry_entry *e) 854 { 855 return jiffies - e->timestamp; 856 } 857 858 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 859 bdaddr_t *bdaddr); 860 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 861 bdaddr_t *bdaddr); 862 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 863 bdaddr_t *bdaddr, 864 int state); 865 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 866 struct inquiry_entry *ie); 867 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 868 bool name_known); 869 void hci_inquiry_cache_flush(struct hci_dev *hdev); 870 871 /* ----- HCI Connections ----- */ 872 enum { 873 HCI_CONN_AUTH_PEND, 874 HCI_CONN_REAUTH_PEND, 875 HCI_CONN_ENCRYPT_PEND, 876 HCI_CONN_RSWITCH_PEND, 877 HCI_CONN_MODE_CHANGE_PEND, 878 HCI_CONN_SCO_SETUP_PEND, 879 HCI_CONN_MGMT_CONNECTED, 880 HCI_CONN_SSP_ENABLED, 881 HCI_CONN_SC_ENABLED, 882 HCI_CONN_AES_CCM, 883 HCI_CONN_POWER_SAVE, 884 HCI_CONN_FLUSH_KEY, 885 HCI_CONN_ENCRYPT, 886 HCI_CONN_AUTH, 887 HCI_CONN_SECURE, 888 HCI_CONN_FIPS, 889 HCI_CONN_STK_ENCRYPT, 890 HCI_CONN_AUTH_INITIATOR, 891 HCI_CONN_DROP, 892 HCI_CONN_PARAM_REMOVAL_PEND, 893 HCI_CONN_NEW_LINK_KEY, 894 HCI_CONN_SCANNING, 895 HCI_CONN_AUTH_FAILURE, 896 }; 897 898 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 899 { 900 struct hci_dev *hdev = conn->hdev; 901 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 902 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 903 } 904 905 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 906 { 907 struct hci_dev *hdev = conn->hdev; 908 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 909 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 910 } 911 912 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 913 { 914 struct hci_conn_hash *h = &hdev->conn_hash; 915 list_add_rcu(&c->list, &h->list); 916 switch (c->type) { 917 case ACL_LINK: 918 h->acl_num++; 919 break; 920 case AMP_LINK: 921 h->amp_num++; 922 break; 923 case LE_LINK: 924 h->le_num++; 925 if (c->role == HCI_ROLE_SLAVE) 926 h->le_num_peripheral++; 927 break; 928 case SCO_LINK: 929 case ESCO_LINK: 930 h->sco_num++; 931 break; 932 } 933 } 934 935 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 936 { 937 struct hci_conn_hash *h = &hdev->conn_hash; 938 939 list_del_rcu(&c->list); 940 synchronize_rcu(); 941 942 switch (c->type) { 943 case ACL_LINK: 944 h->acl_num--; 945 break; 946 case AMP_LINK: 947 h->amp_num--; 948 break; 949 case LE_LINK: 950 h->le_num--; 951 if (c->role == HCI_ROLE_SLAVE) 952 h->le_num_peripheral--; 953 break; 954 case SCO_LINK: 955 case ESCO_LINK: 956 h->sco_num--; 957 break; 958 } 959 } 960 961 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 962 { 963 struct hci_conn_hash *h = &hdev->conn_hash; 964 switch (type) { 965 case ACL_LINK: 966 return h->acl_num; 967 case AMP_LINK: 968 return h->amp_num; 969 case LE_LINK: 970 return h->le_num; 971 case SCO_LINK: 972 case ESCO_LINK: 973 return h->sco_num; 974 default: 975 return 0; 976 } 977 } 978 979 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 980 { 981 struct hci_conn_hash *c = &hdev->conn_hash; 982 983 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 984 } 985 986 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 987 { 988 struct hci_conn_hash *h = &hdev->conn_hash; 989 struct hci_conn *c; 990 __u8 type = INVALID_LINK; 991 992 rcu_read_lock(); 993 994 list_for_each_entry_rcu(c, &h->list, list) { 995 if (c->handle == handle) { 996 type = c->type; 997 break; 998 } 999 } 1000 1001 rcu_read_unlock(); 1002 1003 return type; 1004 } 1005 1006 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1007 __u16 handle) 1008 { 1009 struct hci_conn_hash *h = &hdev->conn_hash; 1010 struct hci_conn *c; 1011 1012 rcu_read_lock(); 1013 1014 list_for_each_entry_rcu(c, &h->list, list) { 1015 if (c->handle == handle) { 1016 rcu_read_unlock(); 1017 return c; 1018 } 1019 } 1020 rcu_read_unlock(); 1021 1022 return NULL; 1023 } 1024 1025 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1026 __u8 type, bdaddr_t *ba) 1027 { 1028 struct hci_conn_hash *h = &hdev->conn_hash; 1029 struct hci_conn *c; 1030 1031 rcu_read_lock(); 1032 1033 list_for_each_entry_rcu(c, &h->list, list) { 1034 if (c->type == type && !bacmp(&c->dst, ba)) { 1035 rcu_read_unlock(); 1036 return c; 1037 } 1038 } 1039 1040 rcu_read_unlock(); 1041 1042 return NULL; 1043 } 1044 1045 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1046 bdaddr_t *ba, 1047 __u8 ba_type) 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->type != LE_LINK) 1056 continue; 1057 1058 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1059 rcu_read_unlock(); 1060 return c; 1061 } 1062 } 1063 1064 rcu_read_unlock(); 1065 1066 return NULL; 1067 } 1068 1069 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1070 __u8 type, __u16 state) 1071 { 1072 struct hci_conn_hash *h = &hdev->conn_hash; 1073 struct hci_conn *c; 1074 1075 rcu_read_lock(); 1076 1077 list_for_each_entry_rcu(c, &h->list, list) { 1078 if (c->type == type && c->state == state) { 1079 rcu_read_unlock(); 1080 return c; 1081 } 1082 } 1083 1084 rcu_read_unlock(); 1085 1086 return NULL; 1087 } 1088 1089 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1090 { 1091 struct hci_conn_hash *h = &hdev->conn_hash; 1092 struct hci_conn *c; 1093 1094 rcu_read_lock(); 1095 1096 list_for_each_entry_rcu(c, &h->list, list) { 1097 if (c->type == LE_LINK && c->state == BT_CONNECT && 1098 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1099 rcu_read_unlock(); 1100 return c; 1101 } 1102 } 1103 1104 rcu_read_unlock(); 1105 1106 return NULL; 1107 } 1108 1109 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1110 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1111 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1112 1113 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1114 u8 role); 1115 int hci_conn_del(struct hci_conn *conn); 1116 void hci_conn_hash_flush(struct hci_dev *hdev); 1117 void hci_conn_check_pending(struct hci_dev *hdev); 1118 1119 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1120 void hci_chan_del(struct hci_chan *chan); 1121 void hci_chan_list_flush(struct hci_conn *conn); 1122 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1123 1124 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1125 u8 dst_type, u8 sec_level, 1126 u16 conn_timeout, 1127 enum conn_reasons conn_reason); 1128 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1129 u8 dst_type, bool dst_resolved, u8 sec_level, 1130 u16 conn_timeout, u8 role); 1131 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1132 u8 sec_level, u8 auth_type, 1133 enum conn_reasons conn_reason); 1134 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1135 __u16 setting, struct bt_codec *codec); 1136 int hci_conn_check_link_mode(struct hci_conn *conn); 1137 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1138 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1139 bool initiator); 1140 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1141 1142 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1143 1144 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 1145 1146 /* 1147 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1148 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1149 * working or anything else. They just guarantee that the object is available 1150 * and can be dereferenced. So you can use its locks, local variables and any 1151 * other constant data. 1152 * Before accessing runtime data, you _must_ lock the object and then check that 1153 * it is still running. As soon as you release the locks, the connection might 1154 * get dropped, though. 1155 * 1156 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1157 * how long the underlying connection is held. So every channel that runs on the 1158 * hci_conn object calls this to prevent the connection from disappearing. As 1159 * long as you hold a device, you must also guarantee that you have a valid 1160 * reference to the device via hci_conn_get() (or the initial reference from 1161 * hci_conn_add()). 1162 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1163 * break because nobody cares for that. But this means, we cannot use 1164 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1165 */ 1166 1167 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1168 { 1169 get_device(&conn->dev); 1170 return conn; 1171 } 1172 1173 static inline void hci_conn_put(struct hci_conn *conn) 1174 { 1175 put_device(&conn->dev); 1176 } 1177 1178 static inline void hci_conn_hold(struct hci_conn *conn) 1179 { 1180 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1181 1182 atomic_inc(&conn->refcnt); 1183 cancel_delayed_work(&conn->disc_work); 1184 } 1185 1186 static inline void hci_conn_drop(struct hci_conn *conn) 1187 { 1188 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1189 1190 if (atomic_dec_and_test(&conn->refcnt)) { 1191 unsigned long timeo; 1192 1193 switch (conn->type) { 1194 case ACL_LINK: 1195 case LE_LINK: 1196 cancel_delayed_work(&conn->idle_work); 1197 if (conn->state == BT_CONNECTED) { 1198 timeo = conn->disc_timeout; 1199 if (!conn->out) 1200 timeo *= 2; 1201 } else { 1202 timeo = 0; 1203 } 1204 break; 1205 1206 case AMP_LINK: 1207 timeo = conn->disc_timeout; 1208 break; 1209 1210 default: 1211 timeo = 0; 1212 break; 1213 } 1214 1215 cancel_delayed_work(&conn->disc_work); 1216 queue_delayed_work(conn->hdev->workqueue, 1217 &conn->disc_work, timeo); 1218 } 1219 } 1220 1221 /* ----- HCI Devices ----- */ 1222 static inline void hci_dev_put(struct hci_dev *d) 1223 { 1224 BT_DBG("%s orig refcnt %d", d->name, 1225 kref_read(&d->dev.kobj.kref)); 1226 1227 put_device(&d->dev); 1228 } 1229 1230 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1231 { 1232 BT_DBG("%s orig refcnt %d", d->name, 1233 kref_read(&d->dev.kobj.kref)); 1234 1235 get_device(&d->dev); 1236 return d; 1237 } 1238 1239 #define hci_dev_lock(d) mutex_lock(&d->lock) 1240 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1241 1242 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1243 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1244 1245 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1246 { 1247 return dev_get_drvdata(&hdev->dev); 1248 } 1249 1250 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1251 { 1252 dev_set_drvdata(&hdev->dev, data); 1253 } 1254 1255 static inline void *hci_get_priv(struct hci_dev *hdev) 1256 { 1257 return (char *)hdev + sizeof(*hdev); 1258 } 1259 1260 struct hci_dev *hci_dev_get(int index); 1261 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1262 1263 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1264 1265 static inline struct hci_dev *hci_alloc_dev(void) 1266 { 1267 return hci_alloc_dev_priv(0); 1268 } 1269 1270 void hci_free_dev(struct hci_dev *hdev); 1271 int hci_register_dev(struct hci_dev *hdev); 1272 void hci_unregister_dev(struct hci_dev *hdev); 1273 void hci_release_dev(struct hci_dev *hdev); 1274 int hci_suspend_dev(struct hci_dev *hdev); 1275 int hci_resume_dev(struct hci_dev *hdev); 1276 int hci_reset_dev(struct hci_dev *hdev); 1277 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1278 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1279 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1280 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1281 1282 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1283 { 1284 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1285 hdev->msft_opcode = opcode; 1286 #endif 1287 } 1288 1289 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1290 { 1291 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1292 hdev->aosp_capable = true; 1293 #endif 1294 } 1295 1296 int hci_dev_open(__u16 dev); 1297 int hci_dev_close(__u16 dev); 1298 int hci_dev_do_close(struct hci_dev *hdev); 1299 int hci_dev_reset(__u16 dev); 1300 int hci_dev_reset_stat(__u16 dev); 1301 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1302 int hci_get_dev_list(void __user *arg); 1303 int hci_get_dev_info(void __user *arg); 1304 int hci_get_conn_list(void __user *arg); 1305 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1306 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1307 int hci_inquiry(void __user *arg); 1308 1309 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1310 bdaddr_t *bdaddr, u8 type); 1311 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1312 struct list_head *list, bdaddr_t *bdaddr, 1313 u8 type); 1314 struct bdaddr_list_with_flags * 1315 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1316 u8 type); 1317 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1318 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1319 u8 type, u8 *peer_irk, u8 *local_irk); 1320 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1321 u8 type, u32 flags); 1322 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1323 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1324 u8 type); 1325 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1326 u8 type); 1327 void hci_bdaddr_list_clear(struct list_head *list); 1328 1329 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1330 bdaddr_t *addr, u8 addr_type); 1331 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1332 bdaddr_t *addr, u8 addr_type); 1333 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1334 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1335 1336 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1337 bdaddr_t *addr, 1338 u8 addr_type); 1339 1340 void hci_uuids_clear(struct hci_dev *hdev); 1341 1342 void hci_link_keys_clear(struct hci_dev *hdev); 1343 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1344 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1345 bdaddr_t *bdaddr, u8 *val, u8 type, 1346 u8 pin_len, bool *persistent); 1347 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1348 u8 addr_type, u8 type, u8 authenticated, 1349 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1350 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1351 u8 addr_type, u8 role); 1352 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1353 void hci_smp_ltks_clear(struct hci_dev *hdev); 1354 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1355 1356 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1357 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1358 u8 addr_type); 1359 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1360 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1361 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1362 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1363 void hci_blocked_keys_clear(struct hci_dev *hdev); 1364 void hci_smp_irks_clear(struct hci_dev *hdev); 1365 1366 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1367 1368 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1369 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1370 bdaddr_t *bdaddr, u8 bdaddr_type); 1371 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1372 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1373 u8 *hash256, u8 *rand256); 1374 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1375 u8 bdaddr_type); 1376 1377 void hci_adv_instances_clear(struct hci_dev *hdev); 1378 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1379 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1380 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1381 u16 adv_data_len, u8 *adv_data, 1382 u16 scan_rsp_len, u8 *scan_rsp_data, 1383 u16 timeout, u16 duration, s8 tx_power, 1384 u32 min_interval, u32 max_interval); 1385 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1386 u16 adv_data_len, u8 *adv_data, 1387 u16 scan_rsp_len, u8 *scan_rsp_data); 1388 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1389 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1390 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1391 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1392 1393 void hci_adv_monitors_clear(struct hci_dev *hdev); 1394 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1395 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1396 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1397 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor, 1398 int *err); 1399 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err); 1400 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err); 1401 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1402 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1403 1404 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1405 1406 void hci_init_sysfs(struct hci_dev *hdev); 1407 void hci_conn_init_sysfs(struct hci_conn *conn); 1408 void hci_conn_add_sysfs(struct hci_conn *conn); 1409 void hci_conn_del_sysfs(struct hci_conn *conn); 1410 1411 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1412 1413 /* ----- LMP capabilities ----- */ 1414 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1415 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1416 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1417 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1418 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1419 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1420 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1421 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1422 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1423 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1424 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1425 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1426 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1427 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1428 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1429 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1430 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1431 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1432 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1433 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1434 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1435 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1436 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1437 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1438 1439 /* ----- Extended LMP capabilities ----- */ 1440 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1441 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1442 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1443 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1444 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1445 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1446 1447 /* ----- Host capabilities ----- */ 1448 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1449 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1450 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1451 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1452 1453 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1454 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1455 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1456 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1457 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1458 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1459 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1460 !adv->rpa_expired) 1461 1462 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1463 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1464 1465 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1466 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1467 1468 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1469 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1470 1471 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1472 1473 /* Use LL Privacy based address resolution if supported */ 1474 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \ 1475 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY)) 1476 1477 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \ 1478 (hdev->commands[39] & 0x04)) 1479 1480 /* Use enhanced synchronous connection if command is supported */ 1481 #define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08) 1482 1483 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1484 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1485 ((dev)->commands[37] & 0x40)) 1486 /* Use ext create connection if command is supported */ 1487 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1488 1489 /* Extended advertising support */ 1490 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1491 1492 /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: 1493 * 1494 * C24: Mandatory if the LE Controller supports Connection State and either 1495 * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported 1496 */ 1497 #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \ 1498 ext_adv_capable(dev)) 1499 1500 /* ----- HCI protocols ----- */ 1501 #define HCI_PROTO_DEFER 0x01 1502 1503 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1504 __u8 type, __u8 *flags) 1505 { 1506 switch (type) { 1507 case ACL_LINK: 1508 return l2cap_connect_ind(hdev, bdaddr); 1509 1510 case SCO_LINK: 1511 case ESCO_LINK: 1512 return sco_connect_ind(hdev, bdaddr, flags); 1513 1514 default: 1515 BT_ERR("unknown link type %d", type); 1516 return -EINVAL; 1517 } 1518 } 1519 1520 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1521 { 1522 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1523 return HCI_ERROR_REMOTE_USER_TERM; 1524 1525 return l2cap_disconn_ind(conn); 1526 } 1527 1528 /* ----- HCI callbacks ----- */ 1529 struct hci_cb { 1530 struct list_head list; 1531 1532 char *name; 1533 1534 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 1535 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 1536 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1537 __u8 encrypt); 1538 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1539 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1540 }; 1541 1542 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1543 { 1544 struct hci_cb *cb; 1545 1546 mutex_lock(&hci_cb_list_lock); 1547 list_for_each_entry(cb, &hci_cb_list, list) { 1548 if (cb->connect_cfm) 1549 cb->connect_cfm(conn, status); 1550 } 1551 mutex_unlock(&hci_cb_list_lock); 1552 1553 if (conn->connect_cfm_cb) 1554 conn->connect_cfm_cb(conn, status); 1555 } 1556 1557 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 1558 { 1559 struct hci_cb *cb; 1560 1561 mutex_lock(&hci_cb_list_lock); 1562 list_for_each_entry(cb, &hci_cb_list, list) { 1563 if (cb->disconn_cfm) 1564 cb->disconn_cfm(conn, reason); 1565 } 1566 mutex_unlock(&hci_cb_list_lock); 1567 1568 if (conn->disconn_cfm_cb) 1569 conn->disconn_cfm_cb(conn, reason); 1570 } 1571 1572 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1573 { 1574 struct hci_cb *cb; 1575 __u8 encrypt; 1576 1577 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1578 return; 1579 1580 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1581 1582 mutex_lock(&hci_cb_list_lock); 1583 list_for_each_entry(cb, &hci_cb_list, list) { 1584 if (cb->security_cfm) 1585 cb->security_cfm(conn, status, encrypt); 1586 } 1587 mutex_unlock(&hci_cb_list_lock); 1588 1589 if (conn->security_cfm_cb) 1590 conn->security_cfm_cb(conn, status); 1591 } 1592 1593 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 1594 { 1595 struct hci_cb *cb; 1596 __u8 encrypt; 1597 1598 if (conn->state == BT_CONFIG) { 1599 if (!status) 1600 conn->state = BT_CONNECTED; 1601 1602 hci_connect_cfm(conn, status); 1603 hci_conn_drop(conn); 1604 return; 1605 } 1606 1607 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 1608 encrypt = 0x00; 1609 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 1610 encrypt = 0x02; 1611 else 1612 encrypt = 0x01; 1613 1614 if (!status) { 1615 if (conn->sec_level == BT_SECURITY_SDP) 1616 conn->sec_level = BT_SECURITY_LOW; 1617 1618 if (conn->pending_sec_level > conn->sec_level) 1619 conn->sec_level = conn->pending_sec_level; 1620 } 1621 1622 mutex_lock(&hci_cb_list_lock); 1623 list_for_each_entry(cb, &hci_cb_list, list) { 1624 if (cb->security_cfm) 1625 cb->security_cfm(conn, status, encrypt); 1626 } 1627 mutex_unlock(&hci_cb_list_lock); 1628 1629 if (conn->security_cfm_cb) 1630 conn->security_cfm_cb(conn, status); 1631 } 1632 1633 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1634 { 1635 struct hci_cb *cb; 1636 1637 mutex_lock(&hci_cb_list_lock); 1638 list_for_each_entry(cb, &hci_cb_list, list) { 1639 if (cb->key_change_cfm) 1640 cb->key_change_cfm(conn, status); 1641 } 1642 mutex_unlock(&hci_cb_list_lock); 1643 } 1644 1645 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1646 __u8 role) 1647 { 1648 struct hci_cb *cb; 1649 1650 mutex_lock(&hci_cb_list_lock); 1651 list_for_each_entry(cb, &hci_cb_list, list) { 1652 if (cb->role_switch_cfm) 1653 cb->role_switch_cfm(conn, status, role); 1654 } 1655 mutex_unlock(&hci_cb_list_lock); 1656 } 1657 1658 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1659 { 1660 if (addr_type != ADDR_LE_DEV_RANDOM) 1661 return false; 1662 1663 if ((bdaddr->b[5] & 0xc0) == 0x40) 1664 return true; 1665 1666 return false; 1667 } 1668 1669 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1670 { 1671 if (addr_type == ADDR_LE_DEV_PUBLIC) 1672 return true; 1673 1674 /* Check for Random Static address type */ 1675 if ((addr->b[5] & 0xc0) == 0xc0) 1676 return true; 1677 1678 return false; 1679 } 1680 1681 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1682 bdaddr_t *bdaddr, u8 addr_type) 1683 { 1684 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1685 return NULL; 1686 1687 return hci_find_irk_by_rpa(hdev, bdaddr); 1688 } 1689 1690 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1691 u16 to_multiplier) 1692 { 1693 u16 max_latency; 1694 1695 if (min > max || min < 6 || max > 3200) 1696 return -EINVAL; 1697 1698 if (to_multiplier < 10 || to_multiplier > 3200) 1699 return -EINVAL; 1700 1701 if (max >= to_multiplier * 8) 1702 return -EINVAL; 1703 1704 max_latency = (to_multiplier * 4 / max) - 1; 1705 if (latency > 499 || latency > max_latency) 1706 return -EINVAL; 1707 1708 return 0; 1709 } 1710 1711 int hci_register_cb(struct hci_cb *hcb); 1712 int hci_unregister_cb(struct hci_cb *hcb); 1713 1714 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1715 const void *param); 1716 1717 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1718 const void *param); 1719 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1720 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1721 1722 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1723 1724 u32 hci_conn_get_phy(struct hci_conn *conn); 1725 1726 /* ----- HCI Sockets ----- */ 1727 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1728 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1729 int flag, struct sock *skip_sk); 1730 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1731 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 1732 void *data, u16 data_len, ktime_t tstamp, 1733 int flag, struct sock *skip_sk); 1734 1735 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1736 1737 #define HCI_MGMT_VAR_LEN BIT(0) 1738 #define HCI_MGMT_NO_HDEV BIT(1) 1739 #define HCI_MGMT_UNTRUSTED BIT(2) 1740 #define HCI_MGMT_UNCONFIGURED BIT(3) 1741 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 1742 1743 struct hci_mgmt_handler { 1744 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1745 u16 data_len); 1746 size_t data_len; 1747 unsigned long flags; 1748 }; 1749 1750 struct hci_mgmt_chan { 1751 struct list_head list; 1752 unsigned short channel; 1753 size_t handler_count; 1754 const struct hci_mgmt_handler *handlers; 1755 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1756 }; 1757 1758 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1759 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1760 1761 /* Management interface */ 1762 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1763 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1764 BIT(BDADDR_LE_RANDOM)) 1765 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1766 BIT(BDADDR_LE_PUBLIC) | \ 1767 BIT(BDADDR_LE_RANDOM)) 1768 1769 /* These LE scan and inquiry parameters were chosen according to LE General 1770 * Discovery Procedure specification. 1771 */ 1772 #define DISCOV_LE_SCAN_WIN 0x12 1773 #define DISCOV_LE_SCAN_INT 0x12 1774 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1775 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1776 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1777 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1778 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 1779 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 1780 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 1781 1782 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 1783 1784 void mgmt_fill_version_info(void *ver); 1785 int mgmt_new_settings(struct hci_dev *hdev); 1786 void mgmt_index_added(struct hci_dev *hdev); 1787 void mgmt_index_removed(struct hci_dev *hdev); 1788 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1789 void mgmt_power_on(struct hci_dev *hdev, int err); 1790 void __mgmt_power_off(struct hci_dev *hdev); 1791 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1792 bool persistent); 1793 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 1794 u8 *name, u8 name_len); 1795 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1796 u8 link_type, u8 addr_type, u8 reason, 1797 bool mgmt_connected); 1798 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1799 u8 link_type, u8 addr_type, u8 status); 1800 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1801 u8 addr_type, u8 status); 1802 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1803 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1804 u8 status); 1805 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1806 u8 status); 1807 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1808 u8 link_type, u8 addr_type, u32 value, 1809 u8 confirm_hint); 1810 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1811 u8 link_type, u8 addr_type, u8 status); 1812 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1813 u8 link_type, u8 addr_type, u8 status); 1814 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1815 u8 link_type, u8 addr_type); 1816 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1817 u8 link_type, u8 addr_type, u8 status); 1818 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1819 u8 link_type, u8 addr_type, u8 status); 1820 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1821 u8 link_type, u8 addr_type, u32 passkey, 1822 u8 entered); 1823 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1824 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1825 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1826 u8 status); 1827 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1828 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 1829 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1830 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1831 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1832 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1833 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1834 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1835 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1836 void mgmt_suspending(struct hci_dev *hdev, u8 state); 1837 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 1838 u8 addr_type); 1839 bool mgmt_powering_down(struct hci_dev *hdev); 1840 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1841 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 1842 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1843 bool persistent); 1844 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1845 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1846 u16 max_interval, u16 latency, u16 timeout); 1847 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1848 bool mgmt_get_connectable(struct hci_dev *hdev); 1849 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1850 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1851 u8 instance); 1852 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1853 u8 instance); 1854 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 1855 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1856 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1857 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1858 1859 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1860 u16 to_multiplier); 1861 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1862 __u8 ltk[16], __u8 key_size); 1863 1864 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1865 u8 *bdaddr_type); 1866 1867 #define SCO_AIRMODE_MASK 0x0003 1868 #define SCO_AIRMODE_CVSD 0x0000 1869 #define SCO_AIRMODE_TRANSP 0x0003 1870 1871 #define LOCAL_CODEC_ACL_MASK BIT(0) 1872 #define LOCAL_CODEC_SCO_MASK BIT(1) 1873 1874 #define TRANSPORT_TYPE_MAX 0x04 1875 1876 #endif /* __HCI_CORE_H */ 1877