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 }; 92 93 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 94 95 enum suspend_tasks { 96 SUSPEND_PAUSE_DISCOVERY, 97 SUSPEND_UNPAUSE_DISCOVERY, 98 99 SUSPEND_PAUSE_ADVERTISING, 100 SUSPEND_UNPAUSE_ADVERTISING, 101 102 SUSPEND_SCAN_DISABLE, 103 SUSPEND_SCAN_ENABLE, 104 SUSPEND_DISCONNECTING, 105 106 SUSPEND_POWERING_DOWN, 107 108 SUSPEND_PREPARE_NOTIFIER, 109 110 SUSPEND_SET_ADV_FILTER, 111 __SUSPEND_NUM_TASKS 112 }; 113 114 enum suspended_state { 115 BT_RUNNING = 0, 116 BT_SUSPEND_DISCONNECT, 117 BT_SUSPEND_CONFIGURE_WAKE, 118 }; 119 120 struct hci_conn_hash { 121 struct list_head list; 122 unsigned int acl_num; 123 unsigned int amp_num; 124 unsigned int sco_num; 125 unsigned int le_num; 126 unsigned int le_num_peripheral; 127 }; 128 129 struct bdaddr_list { 130 struct list_head list; 131 bdaddr_t bdaddr; 132 u8 bdaddr_type; 133 }; 134 135 struct codec_list { 136 struct list_head list; 137 u8 id; 138 __u16 cid; 139 __u16 vid; 140 u8 transport; 141 u8 num_caps; 142 u32 len; 143 struct hci_codec_caps caps[]; 144 }; 145 146 struct bdaddr_list_with_irk { 147 struct list_head list; 148 bdaddr_t bdaddr; 149 u8 bdaddr_type; 150 u8 peer_irk[16]; 151 u8 local_irk[16]; 152 }; 153 154 struct bdaddr_list_with_flags { 155 struct list_head list; 156 bdaddr_t bdaddr; 157 u8 bdaddr_type; 158 u32 current_flags; 159 }; 160 161 enum hci_conn_flags { 162 HCI_CONN_FLAG_REMOTE_WAKEUP, 163 HCI_CONN_FLAG_MAX 164 }; 165 166 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr)) 167 168 /* Make sure number of flags doesn't exceed sizeof(current_flags) */ 169 static_assert(HCI_CONN_FLAG_MAX < 32); 170 171 struct bt_uuid { 172 struct list_head list; 173 u8 uuid[16]; 174 u8 size; 175 u8 svc_hint; 176 }; 177 178 struct blocked_key { 179 struct list_head list; 180 struct rcu_head rcu; 181 u8 type; 182 u8 val[16]; 183 }; 184 185 struct smp_csrk { 186 bdaddr_t bdaddr; 187 u8 bdaddr_type; 188 u8 type; 189 u8 val[16]; 190 }; 191 192 struct smp_ltk { 193 struct list_head list; 194 struct rcu_head rcu; 195 bdaddr_t bdaddr; 196 u8 bdaddr_type; 197 u8 authenticated; 198 u8 type; 199 u8 enc_size; 200 __le16 ediv; 201 __le64 rand; 202 u8 val[16]; 203 }; 204 205 struct smp_irk { 206 struct list_head list; 207 struct rcu_head rcu; 208 bdaddr_t rpa; 209 bdaddr_t bdaddr; 210 u8 addr_type; 211 u8 val[16]; 212 }; 213 214 struct link_key { 215 struct list_head list; 216 struct rcu_head rcu; 217 bdaddr_t bdaddr; 218 u8 type; 219 u8 val[HCI_LINK_KEY_SIZE]; 220 u8 pin_len; 221 }; 222 223 struct oob_data { 224 struct list_head list; 225 bdaddr_t bdaddr; 226 u8 bdaddr_type; 227 u8 present; 228 u8 hash192[16]; 229 u8 rand192[16]; 230 u8 hash256[16]; 231 u8 rand256[16]; 232 }; 233 234 struct adv_info { 235 struct list_head list; 236 bool enabled; 237 bool pending; 238 __u8 instance; 239 __u32 flags; 240 __u16 timeout; 241 __u16 remaining_time; 242 __u16 duration; 243 __u16 adv_data_len; 244 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 245 __u16 scan_rsp_len; 246 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 247 __s8 tx_power; 248 __u32 min_interval; 249 __u32 max_interval; 250 bdaddr_t random_addr; 251 bool rpa_expired; 252 struct delayed_work rpa_expired_cb; 253 }; 254 255 #define HCI_MAX_ADV_INSTANCES 5 256 #define HCI_DEFAULT_ADV_DURATION 2 257 258 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 259 260 struct adv_pattern { 261 struct list_head list; 262 __u8 ad_type; 263 __u8 offset; 264 __u8 length; 265 __u8 value[HCI_MAX_AD_LENGTH]; 266 }; 267 268 struct adv_rssi_thresholds { 269 __s8 low_threshold; 270 __s8 high_threshold; 271 __u16 low_threshold_timeout; 272 __u16 high_threshold_timeout; 273 __u8 sampling_period; 274 }; 275 276 struct adv_monitor { 277 struct list_head patterns; 278 struct adv_rssi_thresholds rssi; 279 __u16 handle; 280 281 enum { 282 ADV_MONITOR_STATE_NOT_REGISTERED, 283 ADV_MONITOR_STATE_REGISTERED, 284 ADV_MONITOR_STATE_OFFLOADED 285 } state; 286 }; 287 288 #define HCI_MIN_ADV_MONITOR_HANDLE 1 289 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 290 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 291 #define HCI_ADV_MONITOR_EXT_NONE 1 292 #define HCI_ADV_MONITOR_EXT_MSFT 2 293 294 #define HCI_MAX_SHORT_NAME_LENGTH 10 295 296 /* Min encryption key size to match with SMP */ 297 #define HCI_MIN_ENC_KEY_SIZE 7 298 299 /* Default LE RPA expiry time, 15 minutes */ 300 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 301 302 /* Default min/max age of connection information (1s/3s) */ 303 #define DEFAULT_CONN_INFO_MIN_AGE 1000 304 #define DEFAULT_CONN_INFO_MAX_AGE 3000 305 /* Default authenticated payload timeout 30s */ 306 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 307 308 struct amp_assoc { 309 __u16 len; 310 __u16 offset; 311 __u16 rem_len; 312 __u16 len_so_far; 313 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 314 }; 315 316 #define HCI_MAX_PAGES 3 317 318 struct hci_dev { 319 struct list_head list; 320 struct mutex lock; 321 322 char name[8]; 323 unsigned long flags; 324 __u16 id; 325 __u8 bus; 326 __u8 dev_type; 327 bdaddr_t bdaddr; 328 bdaddr_t setup_addr; 329 bdaddr_t public_addr; 330 bdaddr_t random_addr; 331 bdaddr_t static_addr; 332 __u8 adv_addr_type; 333 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 334 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 335 __u8 eir[HCI_MAX_EIR_LENGTH]; 336 __u16 appearance; 337 __u8 dev_class[3]; 338 __u8 major_class; 339 __u8 minor_class; 340 __u8 max_page; 341 __u8 features[HCI_MAX_PAGES][8]; 342 __u8 le_features[8]; 343 __u8 le_accept_list_size; 344 __u8 le_resolv_list_size; 345 __u8 le_num_of_adv_sets; 346 __u8 le_states[8]; 347 __u8 commands[64]; 348 __u8 hci_ver; 349 __u16 hci_rev; 350 __u8 lmp_ver; 351 __u16 manufacturer; 352 __u16 lmp_subver; 353 __u16 voice_setting; 354 __u8 num_iac; 355 __u8 stored_max_keys; 356 __u8 stored_num_keys; 357 __u8 io_capability; 358 __s8 inq_tx_power; 359 __u8 err_data_reporting; 360 __u16 page_scan_interval; 361 __u16 page_scan_window; 362 __u8 page_scan_type; 363 __u8 le_adv_channel_map; 364 __u16 le_adv_min_interval; 365 __u16 le_adv_max_interval; 366 __u8 le_scan_type; 367 __u16 le_scan_interval; 368 __u16 le_scan_window; 369 __u16 le_scan_int_suspend; 370 __u16 le_scan_window_suspend; 371 __u16 le_scan_int_discovery; 372 __u16 le_scan_window_discovery; 373 __u16 le_scan_int_adv_monitor; 374 __u16 le_scan_window_adv_monitor; 375 __u16 le_scan_int_connect; 376 __u16 le_scan_window_connect; 377 __u16 le_conn_min_interval; 378 __u16 le_conn_max_interval; 379 __u16 le_conn_latency; 380 __u16 le_supv_timeout; 381 __u16 le_def_tx_len; 382 __u16 le_def_tx_time; 383 __u16 le_max_tx_len; 384 __u16 le_max_tx_time; 385 __u16 le_max_rx_len; 386 __u16 le_max_rx_time; 387 __u8 le_max_key_size; 388 __u8 le_min_key_size; 389 __u16 discov_interleaved_timeout; 390 __u16 conn_info_min_age; 391 __u16 conn_info_max_age; 392 __u16 auth_payload_timeout; 393 __u8 min_enc_key_size; 394 __u8 max_enc_key_size; 395 __u8 pairing_opts; 396 __u8 ssp_debug_mode; 397 __u8 hw_error_code; 398 __u32 clock; 399 __u16 advmon_allowlist_duration; 400 __u16 advmon_no_filter_duration; 401 __u8 enable_advmon_interleave_scan; 402 403 __u16 devid_source; 404 __u16 devid_vendor; 405 __u16 devid_product; 406 __u16 devid_version; 407 408 __u8 def_page_scan_type; 409 __u16 def_page_scan_int; 410 __u16 def_page_scan_window; 411 __u8 def_inq_scan_type; 412 __u16 def_inq_scan_int; 413 __u16 def_inq_scan_window; 414 __u16 def_br_lsto; 415 __u16 def_page_timeout; 416 __u16 def_multi_adv_rotation_duration; 417 __u16 def_le_autoconnect_timeout; 418 __s8 min_le_tx_power; 419 __s8 max_le_tx_power; 420 421 __u16 pkt_type; 422 __u16 esco_type; 423 __u16 link_policy; 424 __u16 link_mode; 425 426 __u32 idle_timeout; 427 __u16 sniff_min_interval; 428 __u16 sniff_max_interval; 429 430 __u8 amp_status; 431 __u32 amp_total_bw; 432 __u32 amp_max_bw; 433 __u32 amp_min_latency; 434 __u32 amp_max_pdu; 435 __u8 amp_type; 436 __u16 amp_pal_cap; 437 __u16 amp_assoc_size; 438 __u32 amp_max_flush_to; 439 __u32 amp_be_flush_to; 440 441 struct amp_assoc loc_assoc; 442 443 __u8 flow_ctl_mode; 444 445 unsigned int auto_accept_delay; 446 447 unsigned long quirks; 448 449 atomic_t cmd_cnt; 450 unsigned int acl_cnt; 451 unsigned int sco_cnt; 452 unsigned int le_cnt; 453 454 unsigned int acl_mtu; 455 unsigned int sco_mtu; 456 unsigned int le_mtu; 457 unsigned int acl_pkts; 458 unsigned int sco_pkts; 459 unsigned int le_pkts; 460 461 __u16 block_len; 462 __u16 block_mtu; 463 __u16 num_blocks; 464 __u16 block_cnt; 465 466 unsigned long acl_last_tx; 467 unsigned long sco_last_tx; 468 unsigned long le_last_tx; 469 470 __u8 le_tx_def_phys; 471 __u8 le_rx_def_phys; 472 473 struct workqueue_struct *workqueue; 474 struct workqueue_struct *req_workqueue; 475 476 struct work_struct power_on; 477 struct delayed_work power_off; 478 struct work_struct error_reset; 479 struct work_struct cmd_sync_work; 480 struct list_head cmd_sync_work_list; 481 struct mutex cmd_sync_work_lock; 482 483 __u16 discov_timeout; 484 struct delayed_work discov_off; 485 486 struct delayed_work service_cache; 487 488 struct delayed_work cmd_timer; 489 struct delayed_work ncmd_timer; 490 491 struct work_struct rx_work; 492 struct work_struct cmd_work; 493 struct work_struct tx_work; 494 495 struct work_struct discov_update; 496 struct work_struct scan_update; 497 struct delayed_work le_scan_disable; 498 struct delayed_work le_scan_restart; 499 500 struct sk_buff_head rx_q; 501 struct sk_buff_head raw_q; 502 struct sk_buff_head cmd_q; 503 504 struct sk_buff *sent_cmd; 505 506 struct mutex req_lock; 507 wait_queue_head_t req_wait_q; 508 __u32 req_status; 509 __u32 req_result; 510 struct sk_buff *req_skb; 511 512 void *smp_data; 513 void *smp_bredr_data; 514 515 struct discovery_state discovery; 516 517 int discovery_old_state; 518 bool discovery_paused; 519 int advertising_old_state; 520 bool advertising_paused; 521 522 struct notifier_block suspend_notifier; 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 struct hci_conn_hash conn_hash; 532 533 struct list_head mgmt_pending; 534 struct list_head reject_list; 535 struct list_head accept_list; 536 struct list_head uuids; 537 struct list_head link_keys; 538 struct list_head long_term_keys; 539 struct list_head identity_resolving_keys; 540 struct list_head remote_oob_data; 541 struct list_head le_accept_list; 542 struct list_head le_resolv_list; 543 struct list_head le_conn_params; 544 struct list_head pend_le_conns; 545 struct list_head pend_le_reports; 546 struct list_head blocked_keys; 547 struct list_head local_codecs; 548 549 struct hci_dev_stats stat; 550 551 atomic_t promisc; 552 553 const char *hw_info; 554 const char *fw_info; 555 struct dentry *debugfs; 556 557 struct device dev; 558 559 struct rfkill *rfkill; 560 561 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 562 563 __s8 adv_tx_power; 564 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 565 __u8 adv_data_len; 566 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 567 __u8 scan_rsp_data_len; 568 569 struct list_head adv_instances; 570 unsigned int adv_instance_cnt; 571 __u8 cur_adv_instance; 572 __u16 adv_instance_timeout; 573 struct delayed_work adv_instance_expire; 574 575 struct idr adv_monitors_idr; 576 unsigned int adv_monitors_cnt; 577 578 __u8 irk[16]; 579 __u32 rpa_timeout; 580 struct delayed_work rpa_expired; 581 bdaddr_t rpa; 582 583 enum { 584 INTERLEAVE_SCAN_NONE, 585 INTERLEAVE_SCAN_NO_FILTER, 586 INTERLEAVE_SCAN_ALLOWLIST 587 } interleave_scan_state; 588 589 struct delayed_work interleave_scan; 590 591 #if IS_ENABLED(CONFIG_BT_LEDS) 592 struct led_trigger *power_led; 593 #endif 594 595 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 596 __u16 msft_opcode; 597 void *msft_data; 598 bool msft_curve_validity; 599 #endif 600 601 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 602 bool aosp_capable; 603 bool aosp_quality_report; 604 #endif 605 606 int (*open)(struct hci_dev *hdev); 607 int (*close)(struct hci_dev *hdev); 608 int (*flush)(struct hci_dev *hdev); 609 int (*setup)(struct hci_dev *hdev); 610 int (*shutdown)(struct hci_dev *hdev); 611 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 612 void (*notify)(struct hci_dev *hdev, unsigned int evt); 613 void (*hw_error)(struct hci_dev *hdev, u8 code); 614 int (*post_init)(struct hci_dev *hdev); 615 int (*set_diag)(struct hci_dev *hdev, bool enable); 616 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 617 void (*cmd_timeout)(struct hci_dev *hdev); 618 bool (*wakeup)(struct hci_dev *hdev); 619 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 620 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 621 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 622 struct bt_codec *codec, __u8 *vnd_len, 623 __u8 **vnd_data); 624 }; 625 626 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 627 628 enum conn_reasons { 629 CONN_REASON_PAIR_DEVICE, 630 CONN_REASON_L2CAP_CHAN, 631 CONN_REASON_SCO_CONNECT, 632 }; 633 634 struct hci_conn { 635 struct list_head list; 636 637 atomic_t refcnt; 638 639 bdaddr_t dst; 640 __u8 dst_type; 641 bdaddr_t src; 642 __u8 src_type; 643 bdaddr_t init_addr; 644 __u8 init_addr_type; 645 bdaddr_t resp_addr; 646 __u8 resp_addr_type; 647 __u8 adv_instance; 648 __u16 handle; 649 __u16 state; 650 __u8 mode; 651 __u8 type; 652 __u8 role; 653 bool out; 654 __u8 attempt; 655 __u8 dev_class[3]; 656 __u8 features[HCI_MAX_PAGES][8]; 657 __u16 pkt_type; 658 __u16 link_policy; 659 __u8 key_type; 660 __u8 auth_type; 661 __u8 sec_level; 662 __u8 pending_sec_level; 663 __u8 pin_length; 664 __u8 enc_key_size; 665 __u8 io_capability; 666 __u32 passkey_notify; 667 __u8 passkey_entered; 668 __u16 disc_timeout; 669 __u16 conn_timeout; 670 __u16 setting; 671 __u16 auth_payload_timeout; 672 __u16 le_conn_min_interval; 673 __u16 le_conn_max_interval; 674 __u16 le_conn_interval; 675 __u16 le_conn_latency; 676 __u16 le_supv_timeout; 677 __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 678 __u8 le_adv_data_len; 679 __u8 le_tx_phy; 680 __u8 le_rx_phy; 681 __s8 rssi; 682 __s8 tx_power; 683 __s8 max_tx_power; 684 unsigned long flags; 685 686 enum conn_reasons conn_reason; 687 688 __u32 clock; 689 __u16 clock_accuracy; 690 691 unsigned long conn_info_timestamp; 692 693 __u8 remote_cap; 694 __u8 remote_auth; 695 __u8 remote_id; 696 697 unsigned int sent; 698 699 struct sk_buff_head data_q; 700 struct list_head chan_list; 701 702 struct delayed_work disc_work; 703 struct delayed_work auto_accept_work; 704 struct delayed_work idle_work; 705 struct delayed_work le_conn_timeout; 706 struct work_struct le_scan_cleanup; 707 708 struct device dev; 709 struct dentry *debugfs; 710 711 struct hci_dev *hdev; 712 void *l2cap_data; 713 void *sco_data; 714 struct amp_mgr *amp_mgr; 715 716 struct hci_conn *link; 717 struct bt_codec codec; 718 719 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 720 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 721 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 722 }; 723 724 struct hci_chan { 725 struct list_head list; 726 __u16 handle; 727 struct hci_conn *conn; 728 struct sk_buff_head data_q; 729 unsigned int sent; 730 __u8 state; 731 bool amp; 732 }; 733 734 struct hci_conn_params { 735 struct list_head list; 736 struct list_head action; 737 738 bdaddr_t addr; 739 u8 addr_type; 740 741 u16 conn_min_interval; 742 u16 conn_max_interval; 743 u16 conn_latency; 744 u16 supervision_timeout; 745 746 enum { 747 HCI_AUTO_CONN_DISABLED, 748 HCI_AUTO_CONN_REPORT, 749 HCI_AUTO_CONN_DIRECT, 750 HCI_AUTO_CONN_ALWAYS, 751 HCI_AUTO_CONN_LINK_LOSS, 752 HCI_AUTO_CONN_EXPLICIT, 753 } auto_connect; 754 755 struct hci_conn *conn; 756 bool explicit_connect; 757 u32 current_flags; 758 }; 759 760 extern struct list_head hci_dev_list; 761 extern struct list_head hci_cb_list; 762 extern rwlock_t hci_dev_list_lock; 763 extern struct mutex hci_cb_list_lock; 764 765 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 766 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 767 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 768 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 769 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 770 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 771 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 772 773 #define hci_dev_clear_volatile_flags(hdev) \ 774 do { \ 775 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 776 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 777 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 778 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 779 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ 780 } while (0) 781 782 /* ----- HCI interface to upper protocols ----- */ 783 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 784 int l2cap_disconn_ind(struct hci_conn *hcon); 785 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 786 787 #if IS_ENABLED(CONFIG_BT_BREDR) 788 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 789 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 790 #else 791 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 792 __u8 *flags) 793 { 794 return 0; 795 } 796 797 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 798 { 799 } 800 #endif 801 802 /* ----- Inquiry cache ----- */ 803 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 804 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 805 806 static inline void discovery_init(struct hci_dev *hdev) 807 { 808 hdev->discovery.state = DISCOVERY_STOPPED; 809 INIT_LIST_HEAD(&hdev->discovery.all); 810 INIT_LIST_HEAD(&hdev->discovery.unknown); 811 INIT_LIST_HEAD(&hdev->discovery.resolve); 812 hdev->discovery.report_invalid_rssi = true; 813 hdev->discovery.rssi = HCI_RSSI_INVALID; 814 } 815 816 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 817 { 818 hdev->discovery.result_filtering = false; 819 hdev->discovery.report_invalid_rssi = true; 820 hdev->discovery.rssi = HCI_RSSI_INVALID; 821 hdev->discovery.uuid_count = 0; 822 kfree(hdev->discovery.uuids); 823 hdev->discovery.uuids = NULL; 824 hdev->discovery.scan_start = 0; 825 hdev->discovery.scan_duration = 0; 826 } 827 828 bool hci_discovery_active(struct hci_dev *hdev); 829 830 void hci_discovery_set_state(struct hci_dev *hdev, int state); 831 832 static inline int inquiry_cache_empty(struct hci_dev *hdev) 833 { 834 return list_empty(&hdev->discovery.all); 835 } 836 837 static inline long inquiry_cache_age(struct hci_dev *hdev) 838 { 839 struct discovery_state *c = &hdev->discovery; 840 return jiffies - c->timestamp; 841 } 842 843 static inline long inquiry_entry_age(struct inquiry_entry *e) 844 { 845 return jiffies - e->timestamp; 846 } 847 848 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 849 bdaddr_t *bdaddr); 850 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 851 bdaddr_t *bdaddr); 852 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 853 bdaddr_t *bdaddr, 854 int state); 855 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 856 struct inquiry_entry *ie); 857 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 858 bool name_known); 859 void hci_inquiry_cache_flush(struct hci_dev *hdev); 860 861 /* ----- HCI Connections ----- */ 862 enum { 863 HCI_CONN_AUTH_PEND, 864 HCI_CONN_REAUTH_PEND, 865 HCI_CONN_ENCRYPT_PEND, 866 HCI_CONN_RSWITCH_PEND, 867 HCI_CONN_MODE_CHANGE_PEND, 868 HCI_CONN_SCO_SETUP_PEND, 869 HCI_CONN_MGMT_CONNECTED, 870 HCI_CONN_SSP_ENABLED, 871 HCI_CONN_SC_ENABLED, 872 HCI_CONN_AES_CCM, 873 HCI_CONN_POWER_SAVE, 874 HCI_CONN_FLUSH_KEY, 875 HCI_CONN_ENCRYPT, 876 HCI_CONN_AUTH, 877 HCI_CONN_SECURE, 878 HCI_CONN_FIPS, 879 HCI_CONN_STK_ENCRYPT, 880 HCI_CONN_AUTH_INITIATOR, 881 HCI_CONN_DROP, 882 HCI_CONN_PARAM_REMOVAL_PEND, 883 HCI_CONN_NEW_LINK_KEY, 884 HCI_CONN_SCANNING, 885 HCI_CONN_AUTH_FAILURE, 886 }; 887 888 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 889 { 890 struct hci_dev *hdev = conn->hdev; 891 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 892 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 893 } 894 895 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 896 { 897 struct hci_dev *hdev = conn->hdev; 898 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 899 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 900 } 901 902 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 903 { 904 struct hci_conn_hash *h = &hdev->conn_hash; 905 list_add_rcu(&c->list, &h->list); 906 switch (c->type) { 907 case ACL_LINK: 908 h->acl_num++; 909 break; 910 case AMP_LINK: 911 h->amp_num++; 912 break; 913 case LE_LINK: 914 h->le_num++; 915 if (c->role == HCI_ROLE_SLAVE) 916 h->le_num_peripheral++; 917 break; 918 case SCO_LINK: 919 case ESCO_LINK: 920 h->sco_num++; 921 break; 922 } 923 } 924 925 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 926 { 927 struct hci_conn_hash *h = &hdev->conn_hash; 928 929 list_del_rcu(&c->list); 930 synchronize_rcu(); 931 932 switch (c->type) { 933 case ACL_LINK: 934 h->acl_num--; 935 break; 936 case AMP_LINK: 937 h->amp_num--; 938 break; 939 case LE_LINK: 940 h->le_num--; 941 if (c->role == HCI_ROLE_SLAVE) 942 h->le_num_peripheral--; 943 break; 944 case SCO_LINK: 945 case ESCO_LINK: 946 h->sco_num--; 947 break; 948 } 949 } 950 951 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 952 { 953 struct hci_conn_hash *h = &hdev->conn_hash; 954 switch (type) { 955 case ACL_LINK: 956 return h->acl_num; 957 case AMP_LINK: 958 return h->amp_num; 959 case LE_LINK: 960 return h->le_num; 961 case SCO_LINK: 962 case ESCO_LINK: 963 return h->sco_num; 964 default: 965 return 0; 966 } 967 } 968 969 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 970 { 971 struct hci_conn_hash *c = &hdev->conn_hash; 972 973 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 974 } 975 976 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 977 { 978 struct hci_conn_hash *h = &hdev->conn_hash; 979 struct hci_conn *c; 980 __u8 type = INVALID_LINK; 981 982 rcu_read_lock(); 983 984 list_for_each_entry_rcu(c, &h->list, list) { 985 if (c->handle == handle) { 986 type = c->type; 987 break; 988 } 989 } 990 991 rcu_read_unlock(); 992 993 return type; 994 } 995 996 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 997 __u16 handle) 998 { 999 struct hci_conn_hash *h = &hdev->conn_hash; 1000 struct hci_conn *c; 1001 1002 rcu_read_lock(); 1003 1004 list_for_each_entry_rcu(c, &h->list, list) { 1005 if (c->handle == handle) { 1006 rcu_read_unlock(); 1007 return c; 1008 } 1009 } 1010 rcu_read_unlock(); 1011 1012 return NULL; 1013 } 1014 1015 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1016 __u8 type, bdaddr_t *ba) 1017 { 1018 struct hci_conn_hash *h = &hdev->conn_hash; 1019 struct hci_conn *c; 1020 1021 rcu_read_lock(); 1022 1023 list_for_each_entry_rcu(c, &h->list, list) { 1024 if (c->type == type && !bacmp(&c->dst, ba)) { 1025 rcu_read_unlock(); 1026 return c; 1027 } 1028 } 1029 1030 rcu_read_unlock(); 1031 1032 return NULL; 1033 } 1034 1035 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1036 bdaddr_t *ba, 1037 __u8 ba_type) 1038 { 1039 struct hci_conn_hash *h = &hdev->conn_hash; 1040 struct hci_conn *c; 1041 1042 rcu_read_lock(); 1043 1044 list_for_each_entry_rcu(c, &h->list, list) { 1045 if (c->type != LE_LINK) 1046 continue; 1047 1048 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1049 rcu_read_unlock(); 1050 return c; 1051 } 1052 } 1053 1054 rcu_read_unlock(); 1055 1056 return NULL; 1057 } 1058 1059 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1060 __u8 type, __u16 state) 1061 { 1062 struct hci_conn_hash *h = &hdev->conn_hash; 1063 struct hci_conn *c; 1064 1065 rcu_read_lock(); 1066 1067 list_for_each_entry_rcu(c, &h->list, list) { 1068 if (c->type == type && c->state == state) { 1069 rcu_read_unlock(); 1070 return c; 1071 } 1072 } 1073 1074 rcu_read_unlock(); 1075 1076 return NULL; 1077 } 1078 1079 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1080 { 1081 struct hci_conn_hash *h = &hdev->conn_hash; 1082 struct hci_conn *c; 1083 1084 rcu_read_lock(); 1085 1086 list_for_each_entry_rcu(c, &h->list, list) { 1087 if (c->type == LE_LINK && c->state == BT_CONNECT && 1088 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1089 rcu_read_unlock(); 1090 return c; 1091 } 1092 } 1093 1094 rcu_read_unlock(); 1095 1096 return NULL; 1097 } 1098 1099 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1100 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1101 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1102 1103 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1104 u8 role); 1105 int hci_conn_del(struct hci_conn *conn); 1106 void hci_conn_hash_flush(struct hci_dev *hdev); 1107 void hci_conn_check_pending(struct hci_dev *hdev); 1108 1109 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1110 void hci_chan_del(struct hci_chan *chan); 1111 void hci_chan_list_flush(struct hci_conn *conn); 1112 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1113 1114 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1115 u8 dst_type, u8 sec_level, 1116 u16 conn_timeout, 1117 enum conn_reasons conn_reason); 1118 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1119 u8 dst_type, bool dst_resolved, u8 sec_level, 1120 u16 conn_timeout, u8 role, 1121 bdaddr_t *direct_rpa); 1122 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1123 u8 sec_level, u8 auth_type, 1124 enum conn_reasons conn_reason); 1125 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1126 __u16 setting, struct bt_codec *codec); 1127 int hci_conn_check_link_mode(struct hci_conn *conn); 1128 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1129 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1130 bool initiator); 1131 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1132 1133 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1134 1135 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 1136 1137 /* 1138 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1139 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1140 * working or anything else. They just guarantee that the object is available 1141 * and can be dereferenced. So you can use its locks, local variables and any 1142 * other constant data. 1143 * Before accessing runtime data, you _must_ lock the object and then check that 1144 * it is still running. As soon as you release the locks, the connection might 1145 * get dropped, though. 1146 * 1147 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1148 * how long the underlying connection is held. So every channel that runs on the 1149 * hci_conn object calls this to prevent the connection from disappearing. As 1150 * long as you hold a device, you must also guarantee that you have a valid 1151 * reference to the device via hci_conn_get() (or the initial reference from 1152 * hci_conn_add()). 1153 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1154 * break because nobody cares for that. But this means, we cannot use 1155 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1156 */ 1157 1158 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1159 { 1160 get_device(&conn->dev); 1161 return conn; 1162 } 1163 1164 static inline void hci_conn_put(struct hci_conn *conn) 1165 { 1166 put_device(&conn->dev); 1167 } 1168 1169 static inline void hci_conn_hold(struct hci_conn *conn) 1170 { 1171 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1172 1173 atomic_inc(&conn->refcnt); 1174 cancel_delayed_work(&conn->disc_work); 1175 } 1176 1177 static inline void hci_conn_drop(struct hci_conn *conn) 1178 { 1179 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1180 1181 if (atomic_dec_and_test(&conn->refcnt)) { 1182 unsigned long timeo; 1183 1184 switch (conn->type) { 1185 case ACL_LINK: 1186 case LE_LINK: 1187 cancel_delayed_work(&conn->idle_work); 1188 if (conn->state == BT_CONNECTED) { 1189 timeo = conn->disc_timeout; 1190 if (!conn->out) 1191 timeo *= 2; 1192 } else { 1193 timeo = 0; 1194 } 1195 break; 1196 1197 case AMP_LINK: 1198 timeo = conn->disc_timeout; 1199 break; 1200 1201 default: 1202 timeo = 0; 1203 break; 1204 } 1205 1206 cancel_delayed_work(&conn->disc_work); 1207 queue_delayed_work(conn->hdev->workqueue, 1208 &conn->disc_work, timeo); 1209 } 1210 } 1211 1212 /* ----- HCI Devices ----- */ 1213 static inline void hci_dev_put(struct hci_dev *d) 1214 { 1215 BT_DBG("%s orig refcnt %d", d->name, 1216 kref_read(&d->dev.kobj.kref)); 1217 1218 put_device(&d->dev); 1219 } 1220 1221 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1222 { 1223 BT_DBG("%s orig refcnt %d", d->name, 1224 kref_read(&d->dev.kobj.kref)); 1225 1226 get_device(&d->dev); 1227 return d; 1228 } 1229 1230 #define hci_dev_lock(d) mutex_lock(&d->lock) 1231 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1232 1233 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1234 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1235 1236 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1237 { 1238 return dev_get_drvdata(&hdev->dev); 1239 } 1240 1241 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1242 { 1243 dev_set_drvdata(&hdev->dev, data); 1244 } 1245 1246 static inline void *hci_get_priv(struct hci_dev *hdev) 1247 { 1248 return (char *)hdev + sizeof(*hdev); 1249 } 1250 1251 struct hci_dev *hci_dev_get(int index); 1252 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1253 1254 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1255 1256 static inline struct hci_dev *hci_alloc_dev(void) 1257 { 1258 return hci_alloc_dev_priv(0); 1259 } 1260 1261 void hci_free_dev(struct hci_dev *hdev); 1262 int hci_register_dev(struct hci_dev *hdev); 1263 void hci_unregister_dev(struct hci_dev *hdev); 1264 void hci_release_dev(struct hci_dev *hdev); 1265 int hci_suspend_dev(struct hci_dev *hdev); 1266 int hci_resume_dev(struct hci_dev *hdev); 1267 int hci_reset_dev(struct hci_dev *hdev); 1268 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1269 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1270 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1271 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1272 1273 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1274 { 1275 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1276 hdev->msft_opcode = opcode; 1277 #endif 1278 } 1279 1280 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1281 { 1282 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1283 hdev->aosp_capable = true; 1284 #endif 1285 } 1286 1287 int hci_dev_open(__u16 dev); 1288 int hci_dev_close(__u16 dev); 1289 int hci_dev_do_close(struct hci_dev *hdev); 1290 int hci_dev_reset(__u16 dev); 1291 int hci_dev_reset_stat(__u16 dev); 1292 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1293 int hci_get_dev_list(void __user *arg); 1294 int hci_get_dev_info(void __user *arg); 1295 int hci_get_conn_list(void __user *arg); 1296 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1297 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1298 int hci_inquiry(void __user *arg); 1299 1300 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1301 bdaddr_t *bdaddr, u8 type); 1302 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1303 struct list_head *list, bdaddr_t *bdaddr, 1304 u8 type); 1305 struct bdaddr_list_with_flags * 1306 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1307 u8 type); 1308 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1309 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1310 u8 type, u8 *peer_irk, u8 *local_irk); 1311 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1312 u8 type, u32 flags); 1313 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1314 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1315 u8 type); 1316 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1317 u8 type); 1318 void hci_bdaddr_list_clear(struct list_head *list); 1319 1320 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1321 bdaddr_t *addr, u8 addr_type); 1322 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1323 bdaddr_t *addr, u8 addr_type); 1324 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1325 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1326 1327 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1328 bdaddr_t *addr, 1329 u8 addr_type); 1330 1331 void hci_uuids_clear(struct hci_dev *hdev); 1332 1333 void hci_link_keys_clear(struct hci_dev *hdev); 1334 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1335 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1336 bdaddr_t *bdaddr, u8 *val, u8 type, 1337 u8 pin_len, bool *persistent); 1338 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1339 u8 addr_type, u8 type, u8 authenticated, 1340 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1341 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1342 u8 addr_type, u8 role); 1343 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1344 void hci_smp_ltks_clear(struct hci_dev *hdev); 1345 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1346 1347 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1348 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1349 u8 addr_type); 1350 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1351 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1352 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1353 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1354 void hci_blocked_keys_clear(struct hci_dev *hdev); 1355 void hci_smp_irks_clear(struct hci_dev *hdev); 1356 1357 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1358 1359 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1360 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1361 bdaddr_t *bdaddr, u8 bdaddr_type); 1362 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1363 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1364 u8 *hash256, u8 *rand256); 1365 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1366 u8 bdaddr_type); 1367 1368 void hci_adv_instances_clear(struct hci_dev *hdev); 1369 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1370 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1371 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1372 u16 adv_data_len, u8 *adv_data, 1373 u16 scan_rsp_len, u8 *scan_rsp_data, 1374 u16 timeout, u16 duration, s8 tx_power, 1375 u32 min_interval, u32 max_interval); 1376 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1377 u16 adv_data_len, u8 *adv_data, 1378 u16 scan_rsp_len, u8 *scan_rsp_data); 1379 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1380 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1381 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1382 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1383 1384 void hci_adv_monitors_clear(struct hci_dev *hdev); 1385 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1386 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1387 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1388 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor, 1389 int *err); 1390 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err); 1391 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err); 1392 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1393 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1394 1395 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1396 1397 void hci_init_sysfs(struct hci_dev *hdev); 1398 void hci_conn_init_sysfs(struct hci_conn *conn); 1399 void hci_conn_add_sysfs(struct hci_conn *conn); 1400 void hci_conn_del_sysfs(struct hci_conn *conn); 1401 1402 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1403 1404 /* ----- LMP capabilities ----- */ 1405 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1406 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1407 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1408 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1409 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1410 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1411 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1412 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1413 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1414 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1415 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1416 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1417 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1418 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1419 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1420 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1421 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1422 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1423 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1424 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1425 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1426 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1427 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1428 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1429 1430 /* ----- Extended LMP capabilities ----- */ 1431 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1432 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1433 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1434 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1435 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1436 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1437 1438 /* ----- Host capabilities ----- */ 1439 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1440 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1441 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1442 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1443 1444 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1445 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1446 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1447 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1448 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1449 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1450 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1451 !adv->rpa_expired) 1452 1453 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1454 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1455 1456 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1457 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1458 1459 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1460 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1461 1462 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1463 1464 /* Use LL Privacy based address resolution if supported */ 1465 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \ 1466 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY)) 1467 1468 /* Use enhanced synchronous connection if command is supported */ 1469 #define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08) 1470 1471 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1472 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1473 ((dev)->commands[37] & 0x40)) 1474 /* Use ext create connection if command is supported */ 1475 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1476 1477 /* Extended advertising support */ 1478 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1479 1480 /* ----- HCI protocols ----- */ 1481 #define HCI_PROTO_DEFER 0x01 1482 1483 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1484 __u8 type, __u8 *flags) 1485 { 1486 switch (type) { 1487 case ACL_LINK: 1488 return l2cap_connect_ind(hdev, bdaddr); 1489 1490 case SCO_LINK: 1491 case ESCO_LINK: 1492 return sco_connect_ind(hdev, bdaddr, flags); 1493 1494 default: 1495 BT_ERR("unknown link type %d", type); 1496 return -EINVAL; 1497 } 1498 } 1499 1500 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1501 { 1502 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1503 return HCI_ERROR_REMOTE_USER_TERM; 1504 1505 return l2cap_disconn_ind(conn); 1506 } 1507 1508 /* ----- HCI callbacks ----- */ 1509 struct hci_cb { 1510 struct list_head list; 1511 1512 char *name; 1513 1514 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 1515 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 1516 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1517 __u8 encrypt); 1518 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1519 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1520 }; 1521 1522 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1523 { 1524 struct hci_cb *cb; 1525 1526 mutex_lock(&hci_cb_list_lock); 1527 list_for_each_entry(cb, &hci_cb_list, list) { 1528 if (cb->connect_cfm) 1529 cb->connect_cfm(conn, status); 1530 } 1531 mutex_unlock(&hci_cb_list_lock); 1532 1533 if (conn->connect_cfm_cb) 1534 conn->connect_cfm_cb(conn, status); 1535 } 1536 1537 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 1538 { 1539 struct hci_cb *cb; 1540 1541 mutex_lock(&hci_cb_list_lock); 1542 list_for_each_entry(cb, &hci_cb_list, list) { 1543 if (cb->disconn_cfm) 1544 cb->disconn_cfm(conn, reason); 1545 } 1546 mutex_unlock(&hci_cb_list_lock); 1547 1548 if (conn->disconn_cfm_cb) 1549 conn->disconn_cfm_cb(conn, reason); 1550 } 1551 1552 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1553 { 1554 struct hci_cb *cb; 1555 __u8 encrypt; 1556 1557 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1558 return; 1559 1560 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1561 1562 mutex_lock(&hci_cb_list_lock); 1563 list_for_each_entry(cb, &hci_cb_list, list) { 1564 if (cb->security_cfm) 1565 cb->security_cfm(conn, status, encrypt); 1566 } 1567 mutex_unlock(&hci_cb_list_lock); 1568 1569 if (conn->security_cfm_cb) 1570 conn->security_cfm_cb(conn, status); 1571 } 1572 1573 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 1574 { 1575 struct hci_cb *cb; 1576 __u8 encrypt; 1577 1578 if (conn->state == BT_CONFIG) { 1579 if (!status) 1580 conn->state = BT_CONNECTED; 1581 1582 hci_connect_cfm(conn, status); 1583 hci_conn_drop(conn); 1584 return; 1585 } 1586 1587 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 1588 encrypt = 0x00; 1589 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 1590 encrypt = 0x02; 1591 else 1592 encrypt = 0x01; 1593 1594 if (!status) { 1595 if (conn->sec_level == BT_SECURITY_SDP) 1596 conn->sec_level = BT_SECURITY_LOW; 1597 1598 if (conn->pending_sec_level > conn->sec_level) 1599 conn->sec_level = conn->pending_sec_level; 1600 } 1601 1602 mutex_lock(&hci_cb_list_lock); 1603 list_for_each_entry(cb, &hci_cb_list, list) { 1604 if (cb->security_cfm) 1605 cb->security_cfm(conn, status, encrypt); 1606 } 1607 mutex_unlock(&hci_cb_list_lock); 1608 1609 if (conn->security_cfm_cb) 1610 conn->security_cfm_cb(conn, status); 1611 } 1612 1613 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1614 { 1615 struct hci_cb *cb; 1616 1617 mutex_lock(&hci_cb_list_lock); 1618 list_for_each_entry(cb, &hci_cb_list, list) { 1619 if (cb->key_change_cfm) 1620 cb->key_change_cfm(conn, status); 1621 } 1622 mutex_unlock(&hci_cb_list_lock); 1623 } 1624 1625 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1626 __u8 role) 1627 { 1628 struct hci_cb *cb; 1629 1630 mutex_lock(&hci_cb_list_lock); 1631 list_for_each_entry(cb, &hci_cb_list, list) { 1632 if (cb->role_switch_cfm) 1633 cb->role_switch_cfm(conn, status, role); 1634 } 1635 mutex_unlock(&hci_cb_list_lock); 1636 } 1637 1638 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1639 { 1640 if (addr_type != ADDR_LE_DEV_RANDOM) 1641 return false; 1642 1643 if ((bdaddr->b[5] & 0xc0) == 0x40) 1644 return true; 1645 1646 return false; 1647 } 1648 1649 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1650 { 1651 if (addr_type == ADDR_LE_DEV_PUBLIC) 1652 return true; 1653 1654 /* Check for Random Static address type */ 1655 if ((addr->b[5] & 0xc0) == 0xc0) 1656 return true; 1657 1658 return false; 1659 } 1660 1661 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1662 bdaddr_t *bdaddr, u8 addr_type) 1663 { 1664 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1665 return NULL; 1666 1667 return hci_find_irk_by_rpa(hdev, bdaddr); 1668 } 1669 1670 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1671 u16 to_multiplier) 1672 { 1673 u16 max_latency; 1674 1675 if (min > max || min < 6 || max > 3200) 1676 return -EINVAL; 1677 1678 if (to_multiplier < 10 || to_multiplier > 3200) 1679 return -EINVAL; 1680 1681 if (max >= to_multiplier * 8) 1682 return -EINVAL; 1683 1684 max_latency = (to_multiplier * 4 / max) - 1; 1685 if (latency > 499 || latency > max_latency) 1686 return -EINVAL; 1687 1688 return 0; 1689 } 1690 1691 int hci_register_cb(struct hci_cb *hcb); 1692 int hci_unregister_cb(struct hci_cb *hcb); 1693 1694 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1695 const void *param); 1696 1697 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1698 const void *param); 1699 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1700 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1701 1702 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1703 1704 u32 hci_conn_get_phy(struct hci_conn *conn); 1705 1706 /* ----- HCI Sockets ----- */ 1707 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1708 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1709 int flag, struct sock *skip_sk); 1710 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1711 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 1712 void *data, u16 data_len, ktime_t tstamp, 1713 int flag, struct sock *skip_sk); 1714 1715 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1716 1717 #define HCI_MGMT_VAR_LEN BIT(0) 1718 #define HCI_MGMT_NO_HDEV BIT(1) 1719 #define HCI_MGMT_UNTRUSTED BIT(2) 1720 #define HCI_MGMT_UNCONFIGURED BIT(3) 1721 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 1722 1723 struct hci_mgmt_handler { 1724 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1725 u16 data_len); 1726 size_t data_len; 1727 unsigned long flags; 1728 }; 1729 1730 struct hci_mgmt_chan { 1731 struct list_head list; 1732 unsigned short channel; 1733 size_t handler_count; 1734 const struct hci_mgmt_handler *handlers; 1735 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1736 }; 1737 1738 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1739 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1740 1741 /* Management interface */ 1742 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1743 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1744 BIT(BDADDR_LE_RANDOM)) 1745 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1746 BIT(BDADDR_LE_PUBLIC) | \ 1747 BIT(BDADDR_LE_RANDOM)) 1748 1749 /* These LE scan and inquiry parameters were chosen according to LE General 1750 * Discovery Procedure specification. 1751 */ 1752 #define DISCOV_LE_SCAN_WIN 0x12 1753 #define DISCOV_LE_SCAN_INT 0x12 1754 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1755 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1756 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1757 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1758 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 1759 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 1760 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 1761 1762 void mgmt_fill_version_info(void *ver); 1763 int mgmt_new_settings(struct hci_dev *hdev); 1764 void mgmt_index_added(struct hci_dev *hdev); 1765 void mgmt_index_removed(struct hci_dev *hdev); 1766 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1767 void mgmt_power_on(struct hci_dev *hdev, int err); 1768 void __mgmt_power_off(struct hci_dev *hdev); 1769 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1770 bool persistent); 1771 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 1772 u8 *name, u8 name_len); 1773 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1774 u8 link_type, u8 addr_type, u8 reason, 1775 bool mgmt_connected); 1776 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1777 u8 link_type, u8 addr_type, u8 status); 1778 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1779 u8 addr_type, u8 status); 1780 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1781 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1782 u8 status); 1783 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1784 u8 status); 1785 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1786 u8 link_type, u8 addr_type, u32 value, 1787 u8 confirm_hint); 1788 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1789 u8 link_type, u8 addr_type, u8 status); 1790 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1791 u8 link_type, u8 addr_type, u8 status); 1792 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1793 u8 link_type, u8 addr_type); 1794 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1795 u8 link_type, u8 addr_type, u8 status); 1796 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1797 u8 link_type, u8 addr_type, u8 status); 1798 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1799 u8 link_type, u8 addr_type, u32 passkey, 1800 u8 entered); 1801 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1802 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1803 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1804 u8 status); 1805 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1806 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 1807 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1808 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1809 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1810 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1811 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1812 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1813 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1814 void mgmt_suspending(struct hci_dev *hdev, u8 state); 1815 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 1816 u8 addr_type); 1817 bool mgmt_powering_down(struct hci_dev *hdev); 1818 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1819 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 1820 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1821 bool persistent); 1822 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1823 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1824 u16 max_interval, u16 latency, u16 timeout); 1825 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1826 bool mgmt_get_connectable(struct hci_dev *hdev); 1827 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1828 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1829 u8 instance); 1830 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1831 u8 instance); 1832 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 1833 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1834 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1835 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1836 1837 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1838 u16 to_multiplier); 1839 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1840 __u8 ltk[16], __u8 key_size); 1841 1842 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1843 u8 *bdaddr_type); 1844 1845 #define SCO_AIRMODE_MASK 0x0003 1846 #define SCO_AIRMODE_CVSD 0x0000 1847 #define SCO_AIRMODE_TRANSP 0x0003 1848 1849 #define LOCAL_CODEC_ACL_MASK BIT(0) 1850 #define LOCAL_CODEC_SCO_MASK BIT(1) 1851 1852 #define TRANSPORT_TYPE_MAX 0x04 1853 1854 #endif /* __HCI_CORE_H */ 1855