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_sock.h> 34 35 /* HCI priority */ 36 #define HCI_PRIO_MAX 7 37 38 /* HCI Core structures */ 39 struct inquiry_data { 40 bdaddr_t bdaddr; 41 __u8 pscan_rep_mode; 42 __u8 pscan_period_mode; 43 __u8 pscan_mode; 44 __u8 dev_class[3]; 45 __le16 clock_offset; 46 __s8 rssi; 47 __u8 ssp_mode; 48 }; 49 50 struct inquiry_entry { 51 struct list_head all; /* inq_cache.all */ 52 struct list_head list; /* unknown or resolve */ 53 enum { 54 NAME_NOT_KNOWN, 55 NAME_NEEDED, 56 NAME_PENDING, 57 NAME_KNOWN, 58 } name_state; 59 __u32 timestamp; 60 struct inquiry_data data; 61 }; 62 63 struct discovery_state { 64 int type; 65 enum { 66 DISCOVERY_STOPPED, 67 DISCOVERY_STARTING, 68 DISCOVERY_FINDING, 69 DISCOVERY_RESOLVING, 70 DISCOVERY_STOPPING, 71 } state; 72 struct list_head all; /* All devices found during inquiry */ 73 struct list_head unknown; /* Name state not known */ 74 struct list_head resolve; /* Name needs to be resolved */ 75 __u32 timestamp; 76 bdaddr_t last_adv_addr; 77 u8 last_adv_addr_type; 78 s8 last_adv_rssi; 79 u32 last_adv_flags; 80 u8 last_adv_data[HCI_MAX_AD_LENGTH]; 81 u8 last_adv_data_len; 82 bool report_invalid_rssi; 83 bool result_filtering; 84 bool limited; 85 s8 rssi; 86 u16 uuid_count; 87 u8 (*uuids)[16]; 88 unsigned long scan_start; 89 unsigned long scan_duration; 90 }; 91 92 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 93 94 enum suspend_tasks { 95 SUSPEND_PAUSE_DISCOVERY, 96 SUSPEND_UNPAUSE_DISCOVERY, 97 98 SUSPEND_PAUSE_ADVERTISING, 99 SUSPEND_UNPAUSE_ADVERTISING, 100 101 SUSPEND_SCAN_DISABLE, 102 SUSPEND_SCAN_ENABLE, 103 SUSPEND_DISCONNECTING, 104 105 SUSPEND_POWERING_DOWN, 106 107 SUSPEND_PREPARE_NOTIFIER, 108 109 SUSPEND_SET_ADV_FILTER, 110 __SUSPEND_NUM_TASKS 111 }; 112 113 enum suspended_state { 114 BT_RUNNING = 0, 115 BT_SUSPEND_DISCONNECT, 116 BT_SUSPEND_CONFIGURE_WAKE, 117 }; 118 119 struct hci_conn_hash { 120 struct list_head list; 121 unsigned int acl_num; 122 unsigned int amp_num; 123 unsigned int sco_num; 124 unsigned int le_num; 125 unsigned int le_num_peripheral; 126 }; 127 128 struct bdaddr_list { 129 struct list_head list; 130 bdaddr_t bdaddr; 131 u8 bdaddr_type; 132 }; 133 134 struct codec_list { 135 struct list_head list; 136 u8 id; 137 __u16 cid; 138 __u16 vid; 139 u8 transport; 140 u8 num_caps; 141 u32 len; 142 struct hci_codec_caps caps[]; 143 }; 144 145 struct bdaddr_list_with_irk { 146 struct list_head list; 147 bdaddr_t bdaddr; 148 u8 bdaddr_type; 149 u8 peer_irk[16]; 150 u8 local_irk[16]; 151 }; 152 153 struct bdaddr_list_with_flags { 154 struct list_head list; 155 bdaddr_t bdaddr; 156 u8 bdaddr_type; 157 u32 current_flags; 158 }; 159 160 enum hci_conn_flags { 161 HCI_CONN_FLAG_REMOTE_WAKEUP, 162 HCI_CONN_FLAG_MAX 163 }; 164 165 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr)) 166 167 /* Make sure number of flags doesn't exceed sizeof(current_flags) */ 168 static_assert(HCI_CONN_FLAG_MAX < 32); 169 170 struct bt_uuid { 171 struct list_head list; 172 u8 uuid[16]; 173 u8 size; 174 u8 svc_hint; 175 }; 176 177 struct blocked_key { 178 struct list_head list; 179 struct rcu_head rcu; 180 u8 type; 181 u8 val[16]; 182 }; 183 184 struct smp_csrk { 185 bdaddr_t bdaddr; 186 u8 bdaddr_type; 187 u8 type; 188 u8 val[16]; 189 }; 190 191 struct smp_ltk { 192 struct list_head list; 193 struct rcu_head rcu; 194 bdaddr_t bdaddr; 195 u8 bdaddr_type; 196 u8 authenticated; 197 u8 type; 198 u8 enc_size; 199 __le16 ediv; 200 __le64 rand; 201 u8 val[16]; 202 }; 203 204 struct smp_irk { 205 struct list_head list; 206 struct rcu_head rcu; 207 bdaddr_t rpa; 208 bdaddr_t bdaddr; 209 u8 addr_type; 210 u8 val[16]; 211 }; 212 213 struct link_key { 214 struct list_head list; 215 struct rcu_head rcu; 216 bdaddr_t bdaddr; 217 u8 type; 218 u8 val[HCI_LINK_KEY_SIZE]; 219 u8 pin_len; 220 }; 221 222 struct oob_data { 223 struct list_head list; 224 bdaddr_t bdaddr; 225 u8 bdaddr_type; 226 u8 present; 227 u8 hash192[16]; 228 u8 rand192[16]; 229 u8 hash256[16]; 230 u8 rand256[16]; 231 }; 232 233 struct adv_info { 234 struct list_head list; 235 bool enabled; 236 bool pending; 237 __u8 instance; 238 __u32 flags; 239 __u16 timeout; 240 __u16 remaining_time; 241 __u16 duration; 242 __u16 adv_data_len; 243 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 244 __u16 scan_rsp_len; 245 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 246 __s8 tx_power; 247 __u32 min_interval; 248 __u32 max_interval; 249 bdaddr_t random_addr; 250 bool rpa_expired; 251 struct delayed_work rpa_expired_cb; 252 }; 253 254 #define HCI_MAX_ADV_INSTANCES 5 255 #define HCI_DEFAULT_ADV_DURATION 2 256 257 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 258 259 struct adv_pattern { 260 struct list_head list; 261 __u8 ad_type; 262 __u8 offset; 263 __u8 length; 264 __u8 value[HCI_MAX_AD_LENGTH]; 265 }; 266 267 struct adv_rssi_thresholds { 268 __s8 low_threshold; 269 __s8 high_threshold; 270 __u16 low_threshold_timeout; 271 __u16 high_threshold_timeout; 272 __u8 sampling_period; 273 }; 274 275 struct adv_monitor { 276 struct list_head patterns; 277 struct adv_rssi_thresholds rssi; 278 __u16 handle; 279 280 enum { 281 ADV_MONITOR_STATE_NOT_REGISTERED, 282 ADV_MONITOR_STATE_REGISTERED, 283 ADV_MONITOR_STATE_OFFLOADED 284 } state; 285 }; 286 287 #define HCI_MIN_ADV_MONITOR_HANDLE 1 288 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 289 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 290 #define HCI_ADV_MONITOR_EXT_NONE 1 291 #define HCI_ADV_MONITOR_EXT_MSFT 2 292 293 #define HCI_MAX_SHORT_NAME_LENGTH 10 294 295 /* Min encryption key size to match with SMP */ 296 #define HCI_MIN_ENC_KEY_SIZE 7 297 298 /* Default LE RPA expiry time, 15 minutes */ 299 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 300 301 /* Default min/max age of connection information (1s/3s) */ 302 #define DEFAULT_CONN_INFO_MIN_AGE 1000 303 #define DEFAULT_CONN_INFO_MAX_AGE 3000 304 /* Default authenticated payload timeout 30s */ 305 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 306 307 struct amp_assoc { 308 __u16 len; 309 __u16 offset; 310 __u16 rem_len; 311 __u16 len_so_far; 312 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 313 }; 314 315 #define HCI_MAX_PAGES 3 316 317 struct hci_dev { 318 struct list_head list; 319 struct mutex lock; 320 321 char name[8]; 322 unsigned long flags; 323 __u16 id; 324 __u8 bus; 325 __u8 dev_type; 326 bdaddr_t bdaddr; 327 bdaddr_t setup_addr; 328 bdaddr_t public_addr; 329 bdaddr_t random_addr; 330 bdaddr_t static_addr; 331 __u8 adv_addr_type; 332 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 333 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 334 __u8 eir[HCI_MAX_EIR_LENGTH]; 335 __u16 appearance; 336 __u8 dev_class[3]; 337 __u8 major_class; 338 __u8 minor_class; 339 __u8 max_page; 340 __u8 features[HCI_MAX_PAGES][8]; 341 __u8 le_features[8]; 342 __u8 le_accept_list_size; 343 __u8 le_resolv_list_size; 344 __u8 le_num_of_adv_sets; 345 __u8 le_states[8]; 346 __u8 commands[64]; 347 __u8 hci_ver; 348 __u16 hci_rev; 349 __u8 lmp_ver; 350 __u16 manufacturer; 351 __u16 lmp_subver; 352 __u16 voice_setting; 353 __u8 num_iac; 354 __u8 stored_max_keys; 355 __u8 stored_num_keys; 356 __u8 io_capability; 357 __s8 inq_tx_power; 358 __u8 err_data_reporting; 359 __u16 page_scan_interval; 360 __u16 page_scan_window; 361 __u8 page_scan_type; 362 __u8 le_adv_channel_map; 363 __u16 le_adv_min_interval; 364 __u16 le_adv_max_interval; 365 __u8 le_scan_type; 366 __u16 le_scan_interval; 367 __u16 le_scan_window; 368 __u16 le_scan_int_suspend; 369 __u16 le_scan_window_suspend; 370 __u16 le_scan_int_discovery; 371 __u16 le_scan_window_discovery; 372 __u16 le_scan_int_adv_monitor; 373 __u16 le_scan_window_adv_monitor; 374 __u16 le_scan_int_connect; 375 __u16 le_scan_window_connect; 376 __u16 le_conn_min_interval; 377 __u16 le_conn_max_interval; 378 __u16 le_conn_latency; 379 __u16 le_supv_timeout; 380 __u16 le_def_tx_len; 381 __u16 le_def_tx_time; 382 __u16 le_max_tx_len; 383 __u16 le_max_tx_time; 384 __u16 le_max_rx_len; 385 __u16 le_max_rx_time; 386 __u8 le_max_key_size; 387 __u8 le_min_key_size; 388 __u16 discov_interleaved_timeout; 389 __u16 conn_info_min_age; 390 __u16 conn_info_max_age; 391 __u16 auth_payload_timeout; 392 __u8 min_enc_key_size; 393 __u8 max_enc_key_size; 394 __u8 pairing_opts; 395 __u8 ssp_debug_mode; 396 __u8 hw_error_code; 397 __u32 clock; 398 __u16 advmon_allowlist_duration; 399 __u16 advmon_no_filter_duration; 400 __u8 enable_advmon_interleave_scan; 401 402 __u16 devid_source; 403 __u16 devid_vendor; 404 __u16 devid_product; 405 __u16 devid_version; 406 407 __u8 def_page_scan_type; 408 __u16 def_page_scan_int; 409 __u16 def_page_scan_window; 410 __u8 def_inq_scan_type; 411 __u16 def_inq_scan_int; 412 __u16 def_inq_scan_window; 413 __u16 def_br_lsto; 414 __u16 def_page_timeout; 415 __u16 def_multi_adv_rotation_duration; 416 __u16 def_le_autoconnect_timeout; 417 __s8 min_le_tx_power; 418 __s8 max_le_tx_power; 419 420 __u16 pkt_type; 421 __u16 esco_type; 422 __u16 link_policy; 423 __u16 link_mode; 424 425 __u32 idle_timeout; 426 __u16 sniff_min_interval; 427 __u16 sniff_max_interval; 428 429 __u8 amp_status; 430 __u32 amp_total_bw; 431 __u32 amp_max_bw; 432 __u32 amp_min_latency; 433 __u32 amp_max_pdu; 434 __u8 amp_type; 435 __u16 amp_pal_cap; 436 __u16 amp_assoc_size; 437 __u32 amp_max_flush_to; 438 __u32 amp_be_flush_to; 439 440 struct amp_assoc loc_assoc; 441 442 __u8 flow_ctl_mode; 443 444 unsigned int auto_accept_delay; 445 446 unsigned long quirks; 447 448 atomic_t cmd_cnt; 449 unsigned int acl_cnt; 450 unsigned int sco_cnt; 451 unsigned int le_cnt; 452 453 unsigned int acl_mtu; 454 unsigned int sco_mtu; 455 unsigned int le_mtu; 456 unsigned int acl_pkts; 457 unsigned int sco_pkts; 458 unsigned int le_pkts; 459 460 __u16 block_len; 461 __u16 block_mtu; 462 __u16 num_blocks; 463 __u16 block_cnt; 464 465 unsigned long acl_last_tx; 466 unsigned long sco_last_tx; 467 unsigned long le_last_tx; 468 469 __u8 le_tx_def_phys; 470 __u8 le_rx_def_phys; 471 472 struct workqueue_struct *workqueue; 473 struct workqueue_struct *req_workqueue; 474 475 struct work_struct power_on; 476 struct delayed_work power_off; 477 struct work_struct error_reset; 478 479 __u16 discov_timeout; 480 struct delayed_work discov_off; 481 482 struct delayed_work service_cache; 483 484 struct delayed_work cmd_timer; 485 struct delayed_work ncmd_timer; 486 487 struct work_struct rx_work; 488 struct work_struct cmd_work; 489 struct work_struct tx_work; 490 491 struct work_struct discov_update; 492 struct work_struct bg_scan_update; 493 struct work_struct scan_update; 494 struct work_struct connectable_update; 495 struct work_struct discoverable_update; 496 struct delayed_work le_scan_disable; 497 struct delayed_work le_scan_restart; 498 499 struct sk_buff_head rx_q; 500 struct sk_buff_head raw_q; 501 struct sk_buff_head cmd_q; 502 503 struct sk_buff *sent_cmd; 504 505 struct mutex req_lock; 506 wait_queue_head_t req_wait_q; 507 __u32 req_status; 508 __u32 req_result; 509 struct sk_buff *req_skb; 510 511 void *smp_data; 512 void *smp_bredr_data; 513 514 struct discovery_state discovery; 515 516 int discovery_old_state; 517 bool discovery_paused; 518 int advertising_old_state; 519 bool advertising_paused; 520 521 struct notifier_block suspend_notifier; 522 struct work_struct suspend_prepare; 523 enum suspended_state suspend_state_next; 524 enum suspended_state suspend_state; 525 bool scanning_paused; 526 bool suspended; 527 u8 wake_reason; 528 bdaddr_t wake_addr; 529 u8 wake_addr_type; 530 531 wait_queue_head_t suspend_wait_q; 532 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS); 533 534 struct hci_conn_hash conn_hash; 535 536 struct list_head mgmt_pending; 537 struct list_head reject_list; 538 struct list_head accept_list; 539 struct list_head uuids; 540 struct list_head link_keys; 541 struct list_head long_term_keys; 542 struct list_head identity_resolving_keys; 543 struct list_head remote_oob_data; 544 struct list_head le_accept_list; 545 struct list_head le_resolv_list; 546 struct list_head le_conn_params; 547 struct list_head pend_le_conns; 548 struct list_head pend_le_reports; 549 struct list_head blocked_keys; 550 struct list_head local_codecs; 551 552 struct hci_dev_stats stat; 553 554 atomic_t promisc; 555 556 const char *hw_info; 557 const char *fw_info; 558 struct dentry *debugfs; 559 560 struct device dev; 561 562 struct rfkill *rfkill; 563 564 DECLARE_BITMAP(dev_flags, __HCI_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 #endif 607 608 int (*open)(struct hci_dev *hdev); 609 int (*close)(struct hci_dev *hdev); 610 int (*flush)(struct hci_dev *hdev); 611 int (*setup)(struct hci_dev *hdev); 612 int (*shutdown)(struct hci_dev *hdev); 613 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 614 void (*notify)(struct hci_dev *hdev, unsigned int evt); 615 void (*hw_error)(struct hci_dev *hdev, u8 code); 616 int (*post_init)(struct hci_dev *hdev); 617 int (*set_diag)(struct hci_dev *hdev, bool enable); 618 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 619 void (*cmd_timeout)(struct hci_dev *hdev); 620 bool (*wakeup)(struct hci_dev *hdev); 621 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 622 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 623 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 624 struct bt_codec *codec, __u8 *vnd_len, 625 __u8 **vnd_data); 626 }; 627 628 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 629 630 enum conn_reasons { 631 CONN_REASON_PAIR_DEVICE, 632 CONN_REASON_L2CAP_CHAN, 633 CONN_REASON_SCO_CONNECT, 634 }; 635 636 struct hci_conn { 637 struct list_head list; 638 639 atomic_t refcnt; 640 641 bdaddr_t dst; 642 __u8 dst_type; 643 bdaddr_t src; 644 __u8 src_type; 645 bdaddr_t init_addr; 646 __u8 init_addr_type; 647 bdaddr_t resp_addr; 648 __u8 resp_addr_type; 649 __u8 adv_instance; 650 __u16 handle; 651 __u16 state; 652 __u8 mode; 653 __u8 type; 654 __u8 role; 655 bool out; 656 __u8 attempt; 657 __u8 dev_class[3]; 658 __u8 features[HCI_MAX_PAGES][8]; 659 __u16 pkt_type; 660 __u16 link_policy; 661 __u8 key_type; 662 __u8 auth_type; 663 __u8 sec_level; 664 __u8 pending_sec_level; 665 __u8 pin_length; 666 __u8 enc_key_size; 667 __u8 io_capability; 668 __u32 passkey_notify; 669 __u8 passkey_entered; 670 __u16 disc_timeout; 671 __u16 conn_timeout; 672 __u16 setting; 673 __u16 auth_payload_timeout; 674 __u16 le_conn_min_interval; 675 __u16 le_conn_max_interval; 676 __u16 le_conn_interval; 677 __u16 le_conn_latency; 678 __u16 le_supv_timeout; 679 __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 680 __u8 le_adv_data_len; 681 __u8 le_tx_phy; 682 __u8 le_rx_phy; 683 __s8 rssi; 684 __s8 tx_power; 685 __s8 max_tx_power; 686 unsigned long flags; 687 688 enum conn_reasons conn_reason; 689 690 __u32 clock; 691 __u16 clock_accuracy; 692 693 unsigned long conn_info_timestamp; 694 695 __u8 remote_cap; 696 __u8 remote_auth; 697 __u8 remote_id; 698 699 unsigned int sent; 700 701 struct sk_buff_head data_q; 702 struct list_head chan_list; 703 704 struct delayed_work disc_work; 705 struct delayed_work auto_accept_work; 706 struct delayed_work idle_work; 707 struct delayed_work le_conn_timeout; 708 struct work_struct le_scan_cleanup; 709 710 struct device dev; 711 struct dentry *debugfs; 712 713 struct hci_dev *hdev; 714 void *l2cap_data; 715 void *sco_data; 716 struct amp_mgr *amp_mgr; 717 718 struct hci_conn *link; 719 struct bt_codec codec; 720 721 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 722 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 723 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 724 }; 725 726 struct hci_chan { 727 struct list_head list; 728 __u16 handle; 729 struct hci_conn *conn; 730 struct sk_buff_head data_q; 731 unsigned int sent; 732 __u8 state; 733 bool amp; 734 }; 735 736 struct hci_conn_params { 737 struct list_head list; 738 struct list_head action; 739 740 bdaddr_t addr; 741 u8 addr_type; 742 743 u16 conn_min_interval; 744 u16 conn_max_interval; 745 u16 conn_latency; 746 u16 supervision_timeout; 747 748 enum { 749 HCI_AUTO_CONN_DISABLED, 750 HCI_AUTO_CONN_REPORT, 751 HCI_AUTO_CONN_DIRECT, 752 HCI_AUTO_CONN_ALWAYS, 753 HCI_AUTO_CONN_LINK_LOSS, 754 HCI_AUTO_CONN_EXPLICIT, 755 } auto_connect; 756 757 struct hci_conn *conn; 758 bool explicit_connect; 759 u32 current_flags; 760 }; 761 762 extern struct list_head hci_dev_list; 763 extern struct list_head hci_cb_list; 764 extern rwlock_t hci_dev_list_lock; 765 extern struct mutex hci_cb_list_lock; 766 767 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 768 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 769 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 770 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 771 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 772 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 773 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 774 775 #define hci_dev_clear_volatile_flags(hdev) \ 776 do { \ 777 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 778 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 779 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 780 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 781 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ 782 } while (0) 783 784 /* ----- HCI interface to upper protocols ----- */ 785 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 786 int l2cap_disconn_ind(struct hci_conn *hcon); 787 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 788 789 #if IS_ENABLED(CONFIG_BT_BREDR) 790 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 791 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 792 #else 793 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 794 __u8 *flags) 795 { 796 return 0; 797 } 798 799 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 800 { 801 } 802 #endif 803 804 /* ----- Inquiry cache ----- */ 805 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 806 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 807 808 static inline void discovery_init(struct hci_dev *hdev) 809 { 810 hdev->discovery.state = DISCOVERY_STOPPED; 811 INIT_LIST_HEAD(&hdev->discovery.all); 812 INIT_LIST_HEAD(&hdev->discovery.unknown); 813 INIT_LIST_HEAD(&hdev->discovery.resolve); 814 hdev->discovery.report_invalid_rssi = true; 815 hdev->discovery.rssi = HCI_RSSI_INVALID; 816 } 817 818 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 819 { 820 hdev->discovery.result_filtering = false; 821 hdev->discovery.report_invalid_rssi = true; 822 hdev->discovery.rssi = HCI_RSSI_INVALID; 823 hdev->discovery.uuid_count = 0; 824 kfree(hdev->discovery.uuids); 825 hdev->discovery.uuids = NULL; 826 hdev->discovery.scan_start = 0; 827 hdev->discovery.scan_duration = 0; 828 } 829 830 bool hci_discovery_active(struct hci_dev *hdev); 831 832 void hci_discovery_set_state(struct hci_dev *hdev, int state); 833 834 static inline int inquiry_cache_empty(struct hci_dev *hdev) 835 { 836 return list_empty(&hdev->discovery.all); 837 } 838 839 static inline long inquiry_cache_age(struct hci_dev *hdev) 840 { 841 struct discovery_state *c = &hdev->discovery; 842 return jiffies - c->timestamp; 843 } 844 845 static inline long inquiry_entry_age(struct inquiry_entry *e) 846 { 847 return jiffies - e->timestamp; 848 } 849 850 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 851 bdaddr_t *bdaddr); 852 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 853 bdaddr_t *bdaddr); 854 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 855 bdaddr_t *bdaddr, 856 int state); 857 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 858 struct inquiry_entry *ie); 859 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 860 bool name_known); 861 void hci_inquiry_cache_flush(struct hci_dev *hdev); 862 863 /* ----- HCI Connections ----- */ 864 enum { 865 HCI_CONN_AUTH_PEND, 866 HCI_CONN_REAUTH_PEND, 867 HCI_CONN_ENCRYPT_PEND, 868 HCI_CONN_RSWITCH_PEND, 869 HCI_CONN_MODE_CHANGE_PEND, 870 HCI_CONN_SCO_SETUP_PEND, 871 HCI_CONN_MGMT_CONNECTED, 872 HCI_CONN_SSP_ENABLED, 873 HCI_CONN_SC_ENABLED, 874 HCI_CONN_AES_CCM, 875 HCI_CONN_POWER_SAVE, 876 HCI_CONN_FLUSH_KEY, 877 HCI_CONN_ENCRYPT, 878 HCI_CONN_AUTH, 879 HCI_CONN_SECURE, 880 HCI_CONN_FIPS, 881 HCI_CONN_STK_ENCRYPT, 882 HCI_CONN_AUTH_INITIATOR, 883 HCI_CONN_DROP, 884 HCI_CONN_PARAM_REMOVAL_PEND, 885 HCI_CONN_NEW_LINK_KEY, 886 HCI_CONN_SCANNING, 887 HCI_CONN_AUTH_FAILURE, 888 }; 889 890 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 891 { 892 struct hci_dev *hdev = conn->hdev; 893 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 894 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 895 } 896 897 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 898 { 899 struct hci_dev *hdev = conn->hdev; 900 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 901 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 902 } 903 904 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 905 { 906 struct hci_conn_hash *h = &hdev->conn_hash; 907 list_add_rcu(&c->list, &h->list); 908 switch (c->type) { 909 case ACL_LINK: 910 h->acl_num++; 911 break; 912 case AMP_LINK: 913 h->amp_num++; 914 break; 915 case LE_LINK: 916 h->le_num++; 917 if (c->role == HCI_ROLE_SLAVE) 918 h->le_num_peripheral++; 919 break; 920 case SCO_LINK: 921 case ESCO_LINK: 922 h->sco_num++; 923 break; 924 } 925 } 926 927 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 928 { 929 struct hci_conn_hash *h = &hdev->conn_hash; 930 931 list_del_rcu(&c->list); 932 synchronize_rcu(); 933 934 switch (c->type) { 935 case ACL_LINK: 936 h->acl_num--; 937 break; 938 case AMP_LINK: 939 h->amp_num--; 940 break; 941 case LE_LINK: 942 h->le_num--; 943 if (c->role == HCI_ROLE_SLAVE) 944 h->le_num_peripheral--; 945 break; 946 case SCO_LINK: 947 case ESCO_LINK: 948 h->sco_num--; 949 break; 950 } 951 } 952 953 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 954 { 955 struct hci_conn_hash *h = &hdev->conn_hash; 956 switch (type) { 957 case ACL_LINK: 958 return h->acl_num; 959 case AMP_LINK: 960 return h->amp_num; 961 case LE_LINK: 962 return h->le_num; 963 case SCO_LINK: 964 case ESCO_LINK: 965 return h->sco_num; 966 default: 967 return 0; 968 } 969 } 970 971 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 972 { 973 struct hci_conn_hash *c = &hdev->conn_hash; 974 975 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 976 } 977 978 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 979 { 980 struct hci_conn_hash *h = &hdev->conn_hash; 981 struct hci_conn *c; 982 __u8 type = INVALID_LINK; 983 984 rcu_read_lock(); 985 986 list_for_each_entry_rcu(c, &h->list, list) { 987 if (c->handle == handle) { 988 type = c->type; 989 break; 990 } 991 } 992 993 rcu_read_unlock(); 994 995 return type; 996 } 997 998 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 999 __u16 handle) 1000 { 1001 struct hci_conn_hash *h = &hdev->conn_hash; 1002 struct hci_conn *c; 1003 1004 rcu_read_lock(); 1005 1006 list_for_each_entry_rcu(c, &h->list, list) { 1007 if (c->handle == handle) { 1008 rcu_read_unlock(); 1009 return c; 1010 } 1011 } 1012 rcu_read_unlock(); 1013 1014 return NULL; 1015 } 1016 1017 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1018 __u8 type, bdaddr_t *ba) 1019 { 1020 struct hci_conn_hash *h = &hdev->conn_hash; 1021 struct hci_conn *c; 1022 1023 rcu_read_lock(); 1024 1025 list_for_each_entry_rcu(c, &h->list, list) { 1026 if (c->type == type && !bacmp(&c->dst, ba)) { 1027 rcu_read_unlock(); 1028 return c; 1029 } 1030 } 1031 1032 rcu_read_unlock(); 1033 1034 return NULL; 1035 } 1036 1037 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1038 bdaddr_t *ba, 1039 __u8 ba_type) 1040 { 1041 struct hci_conn_hash *h = &hdev->conn_hash; 1042 struct hci_conn *c; 1043 1044 rcu_read_lock(); 1045 1046 list_for_each_entry_rcu(c, &h->list, list) { 1047 if (c->type != LE_LINK) 1048 continue; 1049 1050 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1051 rcu_read_unlock(); 1052 return c; 1053 } 1054 } 1055 1056 rcu_read_unlock(); 1057 1058 return NULL; 1059 } 1060 1061 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1062 __u8 type, __u16 state) 1063 { 1064 struct hci_conn_hash *h = &hdev->conn_hash; 1065 struct hci_conn *c; 1066 1067 rcu_read_lock(); 1068 1069 list_for_each_entry_rcu(c, &h->list, list) { 1070 if (c->type == type && c->state == state) { 1071 rcu_read_unlock(); 1072 return c; 1073 } 1074 } 1075 1076 rcu_read_unlock(); 1077 1078 return NULL; 1079 } 1080 1081 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1082 { 1083 struct hci_conn_hash *h = &hdev->conn_hash; 1084 struct hci_conn *c; 1085 1086 rcu_read_lock(); 1087 1088 list_for_each_entry_rcu(c, &h->list, list) { 1089 if (c->type == LE_LINK && c->state == BT_CONNECT && 1090 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1091 rcu_read_unlock(); 1092 return c; 1093 } 1094 } 1095 1096 rcu_read_unlock(); 1097 1098 return NULL; 1099 } 1100 1101 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1102 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1103 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1104 1105 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1106 u8 role); 1107 int hci_conn_del(struct hci_conn *conn); 1108 void hci_conn_hash_flush(struct hci_dev *hdev); 1109 void hci_conn_check_pending(struct hci_dev *hdev); 1110 1111 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1112 void hci_chan_del(struct hci_chan *chan); 1113 void hci_chan_list_flush(struct hci_conn *conn); 1114 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1115 1116 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1117 u8 dst_type, u8 sec_level, 1118 u16 conn_timeout, 1119 enum conn_reasons conn_reason); 1120 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1121 u8 dst_type, bool dst_resolved, u8 sec_level, 1122 u16 conn_timeout, u8 role, 1123 bdaddr_t *direct_rpa); 1124 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1125 u8 sec_level, u8 auth_type, 1126 enum conn_reasons conn_reason); 1127 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1128 __u16 setting, struct bt_codec *codec); 1129 int hci_conn_check_link_mode(struct hci_conn *conn); 1130 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1131 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1132 bool initiator); 1133 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1134 1135 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1136 1137 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 1138 1139 /* 1140 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1141 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1142 * working or anything else. They just guarantee that the object is available 1143 * and can be dereferenced. So you can use its locks, local variables and any 1144 * other constant data. 1145 * Before accessing runtime data, you _must_ lock the object and then check that 1146 * it is still running. As soon as you release the locks, the connection might 1147 * get dropped, though. 1148 * 1149 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1150 * how long the underlying connection is held. So every channel that runs on the 1151 * hci_conn object calls this to prevent the connection from disappearing. As 1152 * long as you hold a device, you must also guarantee that you have a valid 1153 * reference to the device via hci_conn_get() (or the initial reference from 1154 * hci_conn_add()). 1155 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1156 * break because nobody cares for that. But this means, we cannot use 1157 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1158 */ 1159 1160 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1161 { 1162 get_device(&conn->dev); 1163 return conn; 1164 } 1165 1166 static inline void hci_conn_put(struct hci_conn *conn) 1167 { 1168 put_device(&conn->dev); 1169 } 1170 1171 static inline void hci_conn_hold(struct hci_conn *conn) 1172 { 1173 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1174 1175 atomic_inc(&conn->refcnt); 1176 cancel_delayed_work(&conn->disc_work); 1177 } 1178 1179 static inline void hci_conn_drop(struct hci_conn *conn) 1180 { 1181 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1182 1183 if (atomic_dec_and_test(&conn->refcnt)) { 1184 unsigned long timeo; 1185 1186 switch (conn->type) { 1187 case ACL_LINK: 1188 case LE_LINK: 1189 cancel_delayed_work(&conn->idle_work); 1190 if (conn->state == BT_CONNECTED) { 1191 timeo = conn->disc_timeout; 1192 if (!conn->out) 1193 timeo *= 2; 1194 } else { 1195 timeo = 0; 1196 } 1197 break; 1198 1199 case AMP_LINK: 1200 timeo = conn->disc_timeout; 1201 break; 1202 1203 default: 1204 timeo = 0; 1205 break; 1206 } 1207 1208 cancel_delayed_work(&conn->disc_work); 1209 queue_delayed_work(conn->hdev->workqueue, 1210 &conn->disc_work, timeo); 1211 } 1212 } 1213 1214 /* ----- HCI Devices ----- */ 1215 static inline void hci_dev_put(struct hci_dev *d) 1216 { 1217 BT_DBG("%s orig refcnt %d", d->name, 1218 kref_read(&d->dev.kobj.kref)); 1219 1220 put_device(&d->dev); 1221 } 1222 1223 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1224 { 1225 BT_DBG("%s orig refcnt %d", d->name, 1226 kref_read(&d->dev.kobj.kref)); 1227 1228 get_device(&d->dev); 1229 return d; 1230 } 1231 1232 #define hci_dev_lock(d) mutex_lock(&d->lock) 1233 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1234 1235 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1236 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1237 1238 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1239 { 1240 return dev_get_drvdata(&hdev->dev); 1241 } 1242 1243 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1244 { 1245 dev_set_drvdata(&hdev->dev, data); 1246 } 1247 1248 static inline void *hci_get_priv(struct hci_dev *hdev) 1249 { 1250 return (char *)hdev + sizeof(*hdev); 1251 } 1252 1253 struct hci_dev *hci_dev_get(int index); 1254 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1255 1256 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1257 1258 static inline struct hci_dev *hci_alloc_dev(void) 1259 { 1260 return hci_alloc_dev_priv(0); 1261 } 1262 1263 void hci_free_dev(struct hci_dev *hdev); 1264 int hci_register_dev(struct hci_dev *hdev); 1265 void hci_unregister_dev(struct hci_dev *hdev); 1266 void hci_release_dev(struct hci_dev *hdev); 1267 int hci_suspend_dev(struct hci_dev *hdev); 1268 int hci_resume_dev(struct hci_dev *hdev); 1269 int hci_reset_dev(struct hci_dev *hdev); 1270 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1271 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1272 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1273 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1274 1275 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1276 { 1277 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1278 hdev->msft_opcode = opcode; 1279 #endif 1280 } 1281 1282 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1283 { 1284 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1285 hdev->aosp_capable = true; 1286 #endif 1287 } 1288 1289 int hci_dev_open(__u16 dev); 1290 int hci_dev_close(__u16 dev); 1291 int hci_dev_do_close(struct hci_dev *hdev); 1292 int hci_dev_reset(__u16 dev); 1293 int hci_dev_reset_stat(__u16 dev); 1294 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1295 int hci_get_dev_list(void __user *arg); 1296 int hci_get_dev_info(void __user *arg); 1297 int hci_get_conn_list(void __user *arg); 1298 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1299 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1300 int hci_inquiry(void __user *arg); 1301 1302 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1303 bdaddr_t *bdaddr, u8 type); 1304 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1305 struct list_head *list, bdaddr_t *bdaddr, 1306 u8 type); 1307 struct bdaddr_list_with_flags * 1308 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1309 u8 type); 1310 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1311 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1312 u8 type, u8 *peer_irk, u8 *local_irk); 1313 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1314 u8 type, u32 flags); 1315 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1316 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1317 u8 type); 1318 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1319 u8 type); 1320 void hci_bdaddr_list_clear(struct list_head *list); 1321 1322 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1323 bdaddr_t *addr, u8 addr_type); 1324 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1325 bdaddr_t *addr, u8 addr_type); 1326 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1327 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1328 1329 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1330 bdaddr_t *addr, 1331 u8 addr_type); 1332 1333 void hci_uuids_clear(struct hci_dev *hdev); 1334 1335 void hci_link_keys_clear(struct hci_dev *hdev); 1336 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1337 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1338 bdaddr_t *bdaddr, u8 *val, u8 type, 1339 u8 pin_len, bool *persistent); 1340 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1341 u8 addr_type, u8 type, u8 authenticated, 1342 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1343 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1344 u8 addr_type, u8 role); 1345 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1346 void hci_smp_ltks_clear(struct hci_dev *hdev); 1347 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1348 1349 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1350 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1351 u8 addr_type); 1352 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1353 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1354 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1355 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1356 void hci_blocked_keys_clear(struct hci_dev *hdev); 1357 void hci_smp_irks_clear(struct hci_dev *hdev); 1358 1359 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1360 1361 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1362 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1363 bdaddr_t *bdaddr, u8 bdaddr_type); 1364 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1365 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1366 u8 *hash256, u8 *rand256); 1367 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1368 u8 bdaddr_type); 1369 1370 void hci_adv_instances_clear(struct hci_dev *hdev); 1371 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1372 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1373 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1374 u16 adv_data_len, u8 *adv_data, 1375 u16 scan_rsp_len, u8 *scan_rsp_data, 1376 u16 timeout, u16 duration, s8 tx_power, 1377 u32 min_interval, u32 max_interval); 1378 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1379 u16 adv_data_len, u8 *adv_data, 1380 u16 scan_rsp_len, u8 *scan_rsp_data); 1381 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1382 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1383 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1384 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1385 1386 void hci_adv_monitors_clear(struct hci_dev *hdev); 1387 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1388 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1389 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1390 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor, 1391 int *err); 1392 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err); 1393 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err); 1394 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1395 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1396 1397 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1398 1399 void hci_init_sysfs(struct hci_dev *hdev); 1400 void hci_conn_init_sysfs(struct hci_conn *conn); 1401 void hci_conn_add_sysfs(struct hci_conn *conn); 1402 void hci_conn_del_sysfs(struct hci_conn *conn); 1403 1404 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1405 1406 /* ----- LMP capabilities ----- */ 1407 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1408 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1409 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1410 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1411 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1412 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1413 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1414 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1415 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1416 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1417 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1418 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1419 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1420 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1421 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1422 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1423 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1424 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1425 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1426 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1427 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1428 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1429 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1430 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1431 1432 /* ----- Extended LMP capabilities ----- */ 1433 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1434 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1435 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1436 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1437 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1438 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1439 1440 /* ----- Host capabilities ----- */ 1441 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1442 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1443 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1444 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1445 1446 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1447 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1448 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1449 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1450 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1451 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1452 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1453 !adv->rpa_expired) 1454 1455 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1456 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1457 1458 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1459 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1460 1461 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1462 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1463 1464 /* Use LL Privacy based address resolution if supported */ 1465 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1466 1467 /* Use enhanced synchronous connection if command is supported */ 1468 #define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08) 1469 1470 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1471 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1472 ((dev)->commands[37] & 0x40)) 1473 /* Use ext create connection if command is supported */ 1474 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1475 1476 /* Extended advertising support */ 1477 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1478 1479 /* ----- HCI protocols ----- */ 1480 #define HCI_PROTO_DEFER 0x01 1481 1482 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1483 __u8 type, __u8 *flags) 1484 { 1485 switch (type) { 1486 case ACL_LINK: 1487 return l2cap_connect_ind(hdev, bdaddr); 1488 1489 case SCO_LINK: 1490 case ESCO_LINK: 1491 return sco_connect_ind(hdev, bdaddr, flags); 1492 1493 default: 1494 BT_ERR("unknown link type %d", type); 1495 return -EINVAL; 1496 } 1497 } 1498 1499 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1500 { 1501 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1502 return HCI_ERROR_REMOTE_USER_TERM; 1503 1504 return l2cap_disconn_ind(conn); 1505 } 1506 1507 /* ----- HCI callbacks ----- */ 1508 struct hci_cb { 1509 struct list_head list; 1510 1511 char *name; 1512 1513 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 1514 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 1515 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1516 __u8 encrypt); 1517 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1518 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1519 }; 1520 1521 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1522 { 1523 struct hci_cb *cb; 1524 1525 mutex_lock(&hci_cb_list_lock); 1526 list_for_each_entry(cb, &hci_cb_list, list) { 1527 if (cb->connect_cfm) 1528 cb->connect_cfm(conn, status); 1529 } 1530 mutex_unlock(&hci_cb_list_lock); 1531 1532 if (conn->connect_cfm_cb) 1533 conn->connect_cfm_cb(conn, status); 1534 } 1535 1536 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 1537 { 1538 struct hci_cb *cb; 1539 1540 mutex_lock(&hci_cb_list_lock); 1541 list_for_each_entry(cb, &hci_cb_list, list) { 1542 if (cb->disconn_cfm) 1543 cb->disconn_cfm(conn, reason); 1544 } 1545 mutex_unlock(&hci_cb_list_lock); 1546 1547 if (conn->disconn_cfm_cb) 1548 conn->disconn_cfm_cb(conn, reason); 1549 } 1550 1551 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1552 { 1553 struct hci_cb *cb; 1554 __u8 encrypt; 1555 1556 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1557 return; 1558 1559 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1560 1561 mutex_lock(&hci_cb_list_lock); 1562 list_for_each_entry(cb, &hci_cb_list, list) { 1563 if (cb->security_cfm) 1564 cb->security_cfm(conn, status, encrypt); 1565 } 1566 mutex_unlock(&hci_cb_list_lock); 1567 1568 if (conn->security_cfm_cb) 1569 conn->security_cfm_cb(conn, status); 1570 } 1571 1572 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 1573 { 1574 struct hci_cb *cb; 1575 __u8 encrypt; 1576 1577 if (conn->state == BT_CONFIG) { 1578 if (!status) 1579 conn->state = BT_CONNECTED; 1580 1581 hci_connect_cfm(conn, status); 1582 hci_conn_drop(conn); 1583 return; 1584 } 1585 1586 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 1587 encrypt = 0x00; 1588 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 1589 encrypt = 0x02; 1590 else 1591 encrypt = 0x01; 1592 1593 if (!status) { 1594 if (conn->sec_level == BT_SECURITY_SDP) 1595 conn->sec_level = BT_SECURITY_LOW; 1596 1597 if (conn->pending_sec_level > conn->sec_level) 1598 conn->sec_level = conn->pending_sec_level; 1599 } 1600 1601 mutex_lock(&hci_cb_list_lock); 1602 list_for_each_entry(cb, &hci_cb_list, list) { 1603 if (cb->security_cfm) 1604 cb->security_cfm(conn, status, encrypt); 1605 } 1606 mutex_unlock(&hci_cb_list_lock); 1607 1608 if (conn->security_cfm_cb) 1609 conn->security_cfm_cb(conn, status); 1610 } 1611 1612 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1613 { 1614 struct hci_cb *cb; 1615 1616 mutex_lock(&hci_cb_list_lock); 1617 list_for_each_entry(cb, &hci_cb_list, list) { 1618 if (cb->key_change_cfm) 1619 cb->key_change_cfm(conn, status); 1620 } 1621 mutex_unlock(&hci_cb_list_lock); 1622 } 1623 1624 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1625 __u8 role) 1626 { 1627 struct hci_cb *cb; 1628 1629 mutex_lock(&hci_cb_list_lock); 1630 list_for_each_entry(cb, &hci_cb_list, list) { 1631 if (cb->role_switch_cfm) 1632 cb->role_switch_cfm(conn, status, role); 1633 } 1634 mutex_unlock(&hci_cb_list_lock); 1635 } 1636 1637 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1638 { 1639 if (addr_type != ADDR_LE_DEV_RANDOM) 1640 return false; 1641 1642 if ((bdaddr->b[5] & 0xc0) == 0x40) 1643 return true; 1644 1645 return false; 1646 } 1647 1648 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1649 { 1650 if (addr_type == ADDR_LE_DEV_PUBLIC) 1651 return true; 1652 1653 /* Check for Random Static address type */ 1654 if ((addr->b[5] & 0xc0) == 0xc0) 1655 return true; 1656 1657 return false; 1658 } 1659 1660 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1661 bdaddr_t *bdaddr, u8 addr_type) 1662 { 1663 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1664 return NULL; 1665 1666 return hci_find_irk_by_rpa(hdev, bdaddr); 1667 } 1668 1669 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1670 u16 to_multiplier) 1671 { 1672 u16 max_latency; 1673 1674 if (min > max || min < 6 || max > 3200) 1675 return -EINVAL; 1676 1677 if (to_multiplier < 10 || to_multiplier > 3200) 1678 return -EINVAL; 1679 1680 if (max >= to_multiplier * 8) 1681 return -EINVAL; 1682 1683 max_latency = (to_multiplier * 4 / max) - 1; 1684 if (latency > 499 || latency > max_latency) 1685 return -EINVAL; 1686 1687 return 0; 1688 } 1689 1690 int hci_register_cb(struct hci_cb *hcb); 1691 int hci_unregister_cb(struct hci_cb *hcb); 1692 1693 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1694 const void *param, u32 timeout); 1695 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 1696 const void *param, u8 event, u32 timeout); 1697 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1698 const void *param); 1699 1700 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1701 const void *param); 1702 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1703 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1704 1705 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1706 1707 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1708 const void *param, u32 timeout); 1709 1710 u32 hci_conn_get_phy(struct hci_conn *conn); 1711 1712 /* ----- HCI Sockets ----- */ 1713 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1714 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1715 int flag, struct sock *skip_sk); 1716 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1717 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 1718 void *data, u16 data_len, ktime_t tstamp, 1719 int flag, struct sock *skip_sk); 1720 1721 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1722 1723 #define HCI_MGMT_VAR_LEN BIT(0) 1724 #define HCI_MGMT_NO_HDEV BIT(1) 1725 #define HCI_MGMT_UNTRUSTED BIT(2) 1726 #define HCI_MGMT_UNCONFIGURED BIT(3) 1727 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 1728 1729 struct hci_mgmt_handler { 1730 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1731 u16 data_len); 1732 size_t data_len; 1733 unsigned long flags; 1734 }; 1735 1736 struct hci_mgmt_chan { 1737 struct list_head list; 1738 unsigned short channel; 1739 size_t handler_count; 1740 const struct hci_mgmt_handler *handlers; 1741 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1742 }; 1743 1744 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1745 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1746 1747 /* Management interface */ 1748 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1749 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1750 BIT(BDADDR_LE_RANDOM)) 1751 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1752 BIT(BDADDR_LE_PUBLIC) | \ 1753 BIT(BDADDR_LE_RANDOM)) 1754 1755 /* These LE scan and inquiry parameters were chosen according to LE General 1756 * Discovery Procedure specification. 1757 */ 1758 #define DISCOV_LE_SCAN_WIN 0x12 1759 #define DISCOV_LE_SCAN_INT 0x12 1760 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1761 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1762 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1763 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1764 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 1765 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 1766 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 1767 1768 void mgmt_fill_version_info(void *ver); 1769 int mgmt_new_settings(struct hci_dev *hdev); 1770 void mgmt_index_added(struct hci_dev *hdev); 1771 void mgmt_index_removed(struct hci_dev *hdev); 1772 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1773 void mgmt_power_on(struct hci_dev *hdev, int err); 1774 void __mgmt_power_off(struct hci_dev *hdev); 1775 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1776 bool persistent); 1777 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 1778 u8 *name, u8 name_len); 1779 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1780 u8 link_type, u8 addr_type, u8 reason, 1781 bool mgmt_connected); 1782 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1783 u8 link_type, u8 addr_type, u8 status); 1784 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1785 u8 addr_type, u8 status); 1786 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1787 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1788 u8 status); 1789 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1790 u8 status); 1791 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1792 u8 link_type, u8 addr_type, u32 value, 1793 u8 confirm_hint); 1794 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1795 u8 link_type, u8 addr_type, u8 status); 1796 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1797 u8 link_type, u8 addr_type, u8 status); 1798 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1799 u8 link_type, u8 addr_type); 1800 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1801 u8 link_type, u8 addr_type, u8 status); 1802 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1803 u8 link_type, u8 addr_type, u8 status); 1804 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1805 u8 link_type, u8 addr_type, u32 passkey, 1806 u8 entered); 1807 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1808 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1809 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1810 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1811 u8 status); 1812 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1813 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 1814 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1815 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1816 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1817 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1818 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1819 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1820 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1821 void mgmt_suspending(struct hci_dev *hdev, u8 state); 1822 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 1823 u8 addr_type); 1824 bool mgmt_powering_down(struct hci_dev *hdev); 1825 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1826 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 1827 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1828 bool persistent); 1829 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1830 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1831 u16 max_interval, u16 latency, u16 timeout); 1832 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1833 bool mgmt_get_connectable(struct hci_dev *hdev); 1834 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); 1835 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); 1836 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1837 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1838 u8 instance); 1839 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1840 u8 instance); 1841 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 1842 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1843 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1844 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1845 1846 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1847 u16 to_multiplier); 1848 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1849 __u8 ltk[16], __u8 key_size); 1850 1851 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1852 u8 *bdaddr_type); 1853 1854 #define SCO_AIRMODE_MASK 0x0003 1855 #define SCO_AIRMODE_CVSD 0x0000 1856 #define SCO_AIRMODE_TRANSP 0x0003 1857 1858 #define LOCAL_CODEC_ACL_MASK BIT(0) 1859 #define LOCAL_CODEC_SCO_MASK BIT(1) 1860 1861 #define TRANSPORT_TYPE_MAX 0x04 1862 1863 #endif /* __HCI_CORE_H */ 1864