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_slave; 126 }; 127 128 struct bdaddr_list { 129 struct list_head list; 130 bdaddr_t bdaddr; 131 u8 bdaddr_type; 132 }; 133 134 struct bdaddr_list_with_irk { 135 struct list_head list; 136 bdaddr_t bdaddr; 137 u8 bdaddr_type; 138 u8 peer_irk[16]; 139 u8 local_irk[16]; 140 }; 141 142 struct bdaddr_list_with_flags { 143 struct list_head list; 144 bdaddr_t bdaddr; 145 u8 bdaddr_type; 146 u32 current_flags; 147 }; 148 149 enum hci_conn_flags { 150 HCI_CONN_FLAG_REMOTE_WAKEUP, 151 HCI_CONN_FLAG_MAX 152 }; 153 154 #define hci_conn_test_flag(nr, flags) ((flags) & (1U << nr)) 155 156 /* Make sure number of flags doesn't exceed sizeof(current_flags) */ 157 static_assert(HCI_CONN_FLAG_MAX < 32); 158 159 struct bt_uuid { 160 struct list_head list; 161 u8 uuid[16]; 162 u8 size; 163 u8 svc_hint; 164 }; 165 166 struct blocked_key { 167 struct list_head list; 168 struct rcu_head rcu; 169 u8 type; 170 u8 val[16]; 171 }; 172 173 struct smp_csrk { 174 bdaddr_t bdaddr; 175 u8 bdaddr_type; 176 u8 type; 177 u8 val[16]; 178 }; 179 180 struct smp_ltk { 181 struct list_head list; 182 struct rcu_head rcu; 183 bdaddr_t bdaddr; 184 u8 bdaddr_type; 185 u8 authenticated; 186 u8 type; 187 u8 enc_size; 188 __le16 ediv; 189 __le64 rand; 190 u8 val[16]; 191 }; 192 193 struct smp_irk { 194 struct list_head list; 195 struct rcu_head rcu; 196 bdaddr_t rpa; 197 bdaddr_t bdaddr; 198 u8 addr_type; 199 u8 val[16]; 200 }; 201 202 struct link_key { 203 struct list_head list; 204 struct rcu_head rcu; 205 bdaddr_t bdaddr; 206 u8 type; 207 u8 val[HCI_LINK_KEY_SIZE]; 208 u8 pin_len; 209 }; 210 211 struct oob_data { 212 struct list_head list; 213 bdaddr_t bdaddr; 214 u8 bdaddr_type; 215 u8 present; 216 u8 hash192[16]; 217 u8 rand192[16]; 218 u8 hash256[16]; 219 u8 rand256[16]; 220 }; 221 222 struct adv_info { 223 struct list_head list; 224 bool pending; 225 __u8 instance; 226 __u32 flags; 227 __u16 timeout; 228 __u16 remaining_time; 229 __u16 duration; 230 __u16 adv_data_len; 231 __u8 adv_data[HCI_MAX_AD_LENGTH]; 232 __u16 scan_rsp_len; 233 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 234 __s8 tx_power; 235 __u32 min_interval; 236 __u32 max_interval; 237 bdaddr_t random_addr; 238 bool rpa_expired; 239 struct delayed_work rpa_expired_cb; 240 }; 241 242 #define HCI_MAX_ADV_INSTANCES 5 243 #define HCI_DEFAULT_ADV_DURATION 2 244 245 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 246 247 struct adv_pattern { 248 struct list_head list; 249 __u8 ad_type; 250 __u8 offset; 251 __u8 length; 252 __u8 value[HCI_MAX_AD_LENGTH]; 253 }; 254 255 struct adv_rssi_thresholds { 256 __s8 low_threshold; 257 __s8 high_threshold; 258 __u16 low_threshold_timeout; 259 __u16 high_threshold_timeout; 260 __u8 sampling_period; 261 }; 262 263 struct adv_monitor { 264 struct list_head patterns; 265 struct adv_rssi_thresholds rssi; 266 __u16 handle; 267 268 enum { 269 ADV_MONITOR_STATE_NOT_REGISTERED, 270 ADV_MONITOR_STATE_REGISTERED, 271 ADV_MONITOR_STATE_OFFLOADED 272 } state; 273 }; 274 275 #define HCI_MIN_ADV_MONITOR_HANDLE 1 276 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 277 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 278 #define HCI_ADV_MONITOR_EXT_NONE 1 279 #define HCI_ADV_MONITOR_EXT_MSFT 2 280 281 #define HCI_MAX_SHORT_NAME_LENGTH 10 282 283 /* Min encryption key size to match with SMP */ 284 #define HCI_MIN_ENC_KEY_SIZE 7 285 286 /* Default LE RPA expiry time, 15 minutes */ 287 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 288 289 /* Default min/max age of connection information (1s/3s) */ 290 #define DEFAULT_CONN_INFO_MIN_AGE 1000 291 #define DEFAULT_CONN_INFO_MAX_AGE 3000 292 /* Default authenticated payload timeout 30s */ 293 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 294 295 struct amp_assoc { 296 __u16 len; 297 __u16 offset; 298 __u16 rem_len; 299 __u16 len_so_far; 300 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 301 }; 302 303 #define HCI_MAX_PAGES 3 304 305 struct hci_dev { 306 struct list_head list; 307 struct mutex lock; 308 309 char name[8]; 310 unsigned long flags; 311 __u16 id; 312 __u8 bus; 313 __u8 dev_type; 314 bdaddr_t bdaddr; 315 bdaddr_t setup_addr; 316 bdaddr_t public_addr; 317 bdaddr_t random_addr; 318 bdaddr_t static_addr; 319 __u8 adv_addr_type; 320 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 321 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 322 __u8 eir[HCI_MAX_EIR_LENGTH]; 323 __u16 appearance; 324 __u8 dev_class[3]; 325 __u8 major_class; 326 __u8 minor_class; 327 __u8 max_page; 328 __u8 features[HCI_MAX_PAGES][8]; 329 __u8 le_features[8]; 330 __u8 le_white_list_size; 331 __u8 le_resolv_list_size; 332 __u8 le_num_of_adv_sets; 333 __u8 le_states[8]; 334 __u8 commands[64]; 335 __u8 hci_ver; 336 __u16 hci_rev; 337 __u8 lmp_ver; 338 __u16 manufacturer; 339 __u16 lmp_subver; 340 __u16 voice_setting; 341 __u8 num_iac; 342 __u8 stored_max_keys; 343 __u8 stored_num_keys; 344 __u8 io_capability; 345 __s8 inq_tx_power; 346 __u8 err_data_reporting; 347 __u16 page_scan_interval; 348 __u16 page_scan_window; 349 __u8 page_scan_type; 350 __u8 le_adv_channel_map; 351 __u16 le_adv_min_interval; 352 __u16 le_adv_max_interval; 353 __u8 le_scan_type; 354 __u16 le_scan_interval; 355 __u16 le_scan_window; 356 __u16 le_scan_int_suspend; 357 __u16 le_scan_window_suspend; 358 __u16 le_scan_int_discovery; 359 __u16 le_scan_window_discovery; 360 __u16 le_scan_int_adv_monitor; 361 __u16 le_scan_window_adv_monitor; 362 __u16 le_scan_int_connect; 363 __u16 le_scan_window_connect; 364 __u16 le_conn_min_interval; 365 __u16 le_conn_max_interval; 366 __u16 le_conn_latency; 367 __u16 le_supv_timeout; 368 __u16 le_def_tx_len; 369 __u16 le_def_tx_time; 370 __u16 le_max_tx_len; 371 __u16 le_max_tx_time; 372 __u16 le_max_rx_len; 373 __u16 le_max_rx_time; 374 __u8 le_max_key_size; 375 __u8 le_min_key_size; 376 __u16 discov_interleaved_timeout; 377 __u16 conn_info_min_age; 378 __u16 conn_info_max_age; 379 __u16 auth_payload_timeout; 380 __u8 min_enc_key_size; 381 __u8 max_enc_key_size; 382 __u8 pairing_opts; 383 __u8 ssp_debug_mode; 384 __u8 hw_error_code; 385 __u32 clock; 386 __u16 advmon_allowlist_duration; 387 __u16 advmon_no_filter_duration; 388 __u8 enable_advmon_interleave_scan; 389 390 __u16 devid_source; 391 __u16 devid_vendor; 392 __u16 devid_product; 393 __u16 devid_version; 394 395 __u8 def_page_scan_type; 396 __u16 def_page_scan_int; 397 __u16 def_page_scan_window; 398 __u8 def_inq_scan_type; 399 __u16 def_inq_scan_int; 400 __u16 def_inq_scan_window; 401 __u16 def_br_lsto; 402 __u16 def_page_timeout; 403 __u16 def_multi_adv_rotation_duration; 404 __u16 def_le_autoconnect_timeout; 405 __s8 min_le_tx_power; 406 __s8 max_le_tx_power; 407 408 __u16 pkt_type; 409 __u16 esco_type; 410 __u16 link_policy; 411 __u16 link_mode; 412 413 __u32 idle_timeout; 414 __u16 sniff_min_interval; 415 __u16 sniff_max_interval; 416 417 __u8 amp_status; 418 __u32 amp_total_bw; 419 __u32 amp_max_bw; 420 __u32 amp_min_latency; 421 __u32 amp_max_pdu; 422 __u8 amp_type; 423 __u16 amp_pal_cap; 424 __u16 amp_assoc_size; 425 __u32 amp_max_flush_to; 426 __u32 amp_be_flush_to; 427 428 struct amp_assoc loc_assoc; 429 430 __u8 flow_ctl_mode; 431 432 unsigned int auto_accept_delay; 433 434 unsigned long quirks; 435 436 atomic_t cmd_cnt; 437 unsigned int acl_cnt; 438 unsigned int sco_cnt; 439 unsigned int le_cnt; 440 441 unsigned int acl_mtu; 442 unsigned int sco_mtu; 443 unsigned int le_mtu; 444 unsigned int acl_pkts; 445 unsigned int sco_pkts; 446 unsigned int le_pkts; 447 448 __u16 block_len; 449 __u16 block_mtu; 450 __u16 num_blocks; 451 __u16 block_cnt; 452 453 unsigned long acl_last_tx; 454 unsigned long sco_last_tx; 455 unsigned long le_last_tx; 456 457 __u8 le_tx_def_phys; 458 __u8 le_rx_def_phys; 459 460 struct workqueue_struct *workqueue; 461 struct workqueue_struct *req_workqueue; 462 463 struct work_struct power_on; 464 struct delayed_work power_off; 465 struct work_struct error_reset; 466 467 __u16 discov_timeout; 468 struct delayed_work discov_off; 469 470 struct delayed_work service_cache; 471 472 struct delayed_work cmd_timer; 473 474 struct work_struct rx_work; 475 struct work_struct cmd_work; 476 struct work_struct tx_work; 477 478 struct work_struct discov_update; 479 struct work_struct bg_scan_update; 480 struct work_struct scan_update; 481 struct work_struct connectable_update; 482 struct work_struct discoverable_update; 483 struct delayed_work le_scan_disable; 484 struct delayed_work le_scan_restart; 485 486 struct sk_buff_head rx_q; 487 struct sk_buff_head raw_q; 488 struct sk_buff_head cmd_q; 489 490 struct sk_buff *sent_cmd; 491 492 struct mutex req_lock; 493 wait_queue_head_t req_wait_q; 494 __u32 req_status; 495 __u32 req_result; 496 struct sk_buff *req_skb; 497 498 void *smp_data; 499 void *smp_bredr_data; 500 501 struct discovery_state discovery; 502 503 int discovery_old_state; 504 bool discovery_paused; 505 int advertising_old_state; 506 bool advertising_paused; 507 508 struct notifier_block suspend_notifier; 509 struct work_struct suspend_prepare; 510 enum suspended_state suspend_state_next; 511 enum suspended_state suspend_state; 512 bool scanning_paused; 513 bool suspended; 514 u8 wake_reason; 515 bdaddr_t wake_addr; 516 u8 wake_addr_type; 517 518 wait_queue_head_t suspend_wait_q; 519 DECLARE_BITMAP(suspend_tasks, __SUSPEND_NUM_TASKS); 520 521 struct hci_conn_hash conn_hash; 522 523 struct list_head mgmt_pending; 524 struct list_head blacklist; 525 struct list_head whitelist; 526 struct list_head uuids; 527 struct list_head link_keys; 528 struct list_head long_term_keys; 529 struct list_head identity_resolving_keys; 530 struct list_head remote_oob_data; 531 struct list_head le_white_list; 532 struct list_head le_resolv_list; 533 struct list_head le_conn_params; 534 struct list_head pend_le_conns; 535 struct list_head pend_le_reports; 536 struct list_head blocked_keys; 537 538 struct hci_dev_stats stat; 539 540 atomic_t promisc; 541 542 const char *hw_info; 543 const char *fw_info; 544 struct dentry *debugfs; 545 546 struct device dev; 547 548 struct rfkill *rfkill; 549 550 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 551 552 __s8 adv_tx_power; 553 __u8 adv_data[HCI_MAX_AD_LENGTH]; 554 __u8 adv_data_len; 555 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 556 __u8 scan_rsp_data_len; 557 558 struct list_head adv_instances; 559 unsigned int adv_instance_cnt; 560 __u8 cur_adv_instance; 561 __u16 adv_instance_timeout; 562 struct delayed_work adv_instance_expire; 563 564 struct idr adv_monitors_idr; 565 unsigned int adv_monitors_cnt; 566 567 __u8 irk[16]; 568 __u32 rpa_timeout; 569 struct delayed_work rpa_expired; 570 bdaddr_t rpa; 571 572 enum { 573 INTERLEAVE_SCAN_NONE, 574 INTERLEAVE_SCAN_NO_FILTER, 575 INTERLEAVE_SCAN_ALLOWLIST 576 } interleave_scan_state; 577 578 struct delayed_work interleave_scan; 579 580 #if IS_ENABLED(CONFIG_BT_LEDS) 581 struct led_trigger *power_led; 582 #endif 583 584 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 585 __u16 msft_opcode; 586 void *msft_data; 587 #endif 588 589 int (*open)(struct hci_dev *hdev); 590 int (*close)(struct hci_dev *hdev); 591 int (*flush)(struct hci_dev *hdev); 592 int (*setup)(struct hci_dev *hdev); 593 int (*shutdown)(struct hci_dev *hdev); 594 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 595 void (*notify)(struct hci_dev *hdev, unsigned int evt); 596 void (*hw_error)(struct hci_dev *hdev, u8 code); 597 int (*post_init)(struct hci_dev *hdev); 598 int (*set_diag)(struct hci_dev *hdev, bool enable); 599 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 600 void (*cmd_timeout)(struct hci_dev *hdev); 601 bool (*prevent_wake)(struct hci_dev *hdev); 602 }; 603 604 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 605 606 enum conn_reasons { 607 CONN_REASON_PAIR_DEVICE, 608 CONN_REASON_L2CAP_CHAN, 609 CONN_REASON_SCO_CONNECT, 610 }; 611 612 struct hci_conn { 613 struct list_head list; 614 615 atomic_t refcnt; 616 617 bdaddr_t dst; 618 __u8 dst_type; 619 bdaddr_t src; 620 __u8 src_type; 621 bdaddr_t init_addr; 622 __u8 init_addr_type; 623 bdaddr_t resp_addr; 624 __u8 resp_addr_type; 625 __u16 handle; 626 __u16 state; 627 __u8 mode; 628 __u8 type; 629 __u8 role; 630 bool out; 631 __u8 attempt; 632 __u8 dev_class[3]; 633 __u8 features[HCI_MAX_PAGES][8]; 634 __u16 pkt_type; 635 __u16 link_policy; 636 __u8 key_type; 637 __u8 auth_type; 638 __u8 sec_level; 639 __u8 pending_sec_level; 640 __u8 pin_length; 641 __u8 enc_key_size; 642 __u8 io_capability; 643 __u32 passkey_notify; 644 __u8 passkey_entered; 645 __u16 disc_timeout; 646 __u16 conn_timeout; 647 __u16 setting; 648 __u16 auth_payload_timeout; 649 __u16 le_conn_min_interval; 650 __u16 le_conn_max_interval; 651 __u16 le_conn_interval; 652 __u16 le_conn_latency; 653 __u16 le_supv_timeout; 654 __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 655 __u8 le_adv_data_len; 656 __u8 le_tx_phy; 657 __u8 le_rx_phy; 658 __s8 rssi; 659 __s8 tx_power; 660 __s8 max_tx_power; 661 unsigned long flags; 662 663 enum conn_reasons conn_reason; 664 665 __u32 clock; 666 __u16 clock_accuracy; 667 668 unsigned long conn_info_timestamp; 669 670 __u8 remote_cap; 671 __u8 remote_auth; 672 __u8 remote_id; 673 674 unsigned int sent; 675 676 struct sk_buff_head data_q; 677 struct list_head chan_list; 678 679 struct delayed_work disc_work; 680 struct delayed_work auto_accept_work; 681 struct delayed_work idle_work; 682 struct delayed_work le_conn_timeout; 683 struct work_struct le_scan_cleanup; 684 685 struct device dev; 686 struct dentry *debugfs; 687 688 struct hci_dev *hdev; 689 void *l2cap_data; 690 void *sco_data; 691 struct amp_mgr *amp_mgr; 692 693 struct hci_conn *link; 694 695 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 696 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 697 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 698 }; 699 700 struct hci_chan { 701 struct list_head list; 702 __u16 handle; 703 struct hci_conn *conn; 704 struct sk_buff_head data_q; 705 unsigned int sent; 706 __u8 state; 707 }; 708 709 struct hci_conn_params { 710 struct list_head list; 711 struct list_head action; 712 713 bdaddr_t addr; 714 u8 addr_type; 715 716 u16 conn_min_interval; 717 u16 conn_max_interval; 718 u16 conn_latency; 719 u16 supervision_timeout; 720 721 enum { 722 HCI_AUTO_CONN_DISABLED, 723 HCI_AUTO_CONN_REPORT, 724 HCI_AUTO_CONN_DIRECT, 725 HCI_AUTO_CONN_ALWAYS, 726 HCI_AUTO_CONN_LINK_LOSS, 727 HCI_AUTO_CONN_EXPLICIT, 728 } auto_connect; 729 730 struct hci_conn *conn; 731 bool explicit_connect; 732 u32 current_flags; 733 }; 734 735 extern struct list_head hci_dev_list; 736 extern struct list_head hci_cb_list; 737 extern rwlock_t hci_dev_list_lock; 738 extern struct mutex hci_cb_list_lock; 739 740 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 741 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 742 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 743 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 744 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 745 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 746 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 747 748 #define hci_dev_clear_volatile_flags(hdev) \ 749 do { \ 750 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 751 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 752 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 753 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 754 } while (0) 755 756 /* ----- HCI interface to upper protocols ----- */ 757 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 758 int l2cap_disconn_ind(struct hci_conn *hcon); 759 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 760 761 #if IS_ENABLED(CONFIG_BT_BREDR) 762 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 763 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 764 #else 765 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 766 __u8 *flags) 767 { 768 return 0; 769 } 770 771 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 772 { 773 } 774 #endif 775 776 /* ----- Inquiry cache ----- */ 777 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 778 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 779 780 static inline void discovery_init(struct hci_dev *hdev) 781 { 782 hdev->discovery.state = DISCOVERY_STOPPED; 783 INIT_LIST_HEAD(&hdev->discovery.all); 784 INIT_LIST_HEAD(&hdev->discovery.unknown); 785 INIT_LIST_HEAD(&hdev->discovery.resolve); 786 hdev->discovery.report_invalid_rssi = true; 787 hdev->discovery.rssi = HCI_RSSI_INVALID; 788 } 789 790 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 791 { 792 hdev->discovery.result_filtering = false; 793 hdev->discovery.report_invalid_rssi = true; 794 hdev->discovery.rssi = HCI_RSSI_INVALID; 795 hdev->discovery.uuid_count = 0; 796 kfree(hdev->discovery.uuids); 797 hdev->discovery.uuids = NULL; 798 hdev->discovery.scan_start = 0; 799 hdev->discovery.scan_duration = 0; 800 } 801 802 bool hci_discovery_active(struct hci_dev *hdev); 803 804 void hci_discovery_set_state(struct hci_dev *hdev, int state); 805 806 static inline int inquiry_cache_empty(struct hci_dev *hdev) 807 { 808 return list_empty(&hdev->discovery.all); 809 } 810 811 static inline long inquiry_cache_age(struct hci_dev *hdev) 812 { 813 struct discovery_state *c = &hdev->discovery; 814 return jiffies - c->timestamp; 815 } 816 817 static inline long inquiry_entry_age(struct inquiry_entry *e) 818 { 819 return jiffies - e->timestamp; 820 } 821 822 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 823 bdaddr_t *bdaddr); 824 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 825 bdaddr_t *bdaddr); 826 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 827 bdaddr_t *bdaddr, 828 int state); 829 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 830 struct inquiry_entry *ie); 831 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 832 bool name_known); 833 void hci_inquiry_cache_flush(struct hci_dev *hdev); 834 835 /* ----- HCI Connections ----- */ 836 enum { 837 HCI_CONN_AUTH_PEND, 838 HCI_CONN_REAUTH_PEND, 839 HCI_CONN_ENCRYPT_PEND, 840 HCI_CONN_RSWITCH_PEND, 841 HCI_CONN_MODE_CHANGE_PEND, 842 HCI_CONN_SCO_SETUP_PEND, 843 HCI_CONN_MGMT_CONNECTED, 844 HCI_CONN_SSP_ENABLED, 845 HCI_CONN_SC_ENABLED, 846 HCI_CONN_AES_CCM, 847 HCI_CONN_POWER_SAVE, 848 HCI_CONN_FLUSH_KEY, 849 HCI_CONN_ENCRYPT, 850 HCI_CONN_AUTH, 851 HCI_CONN_SECURE, 852 HCI_CONN_FIPS, 853 HCI_CONN_STK_ENCRYPT, 854 HCI_CONN_AUTH_INITIATOR, 855 HCI_CONN_DROP, 856 HCI_CONN_PARAM_REMOVAL_PEND, 857 HCI_CONN_NEW_LINK_KEY, 858 HCI_CONN_SCANNING, 859 HCI_CONN_AUTH_FAILURE, 860 }; 861 862 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 863 { 864 struct hci_dev *hdev = conn->hdev; 865 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 866 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 867 } 868 869 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 870 { 871 struct hci_dev *hdev = conn->hdev; 872 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 873 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 874 } 875 876 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 877 { 878 struct hci_conn_hash *h = &hdev->conn_hash; 879 list_add_rcu(&c->list, &h->list); 880 switch (c->type) { 881 case ACL_LINK: 882 h->acl_num++; 883 break; 884 case AMP_LINK: 885 h->amp_num++; 886 break; 887 case LE_LINK: 888 h->le_num++; 889 if (c->role == HCI_ROLE_SLAVE) 890 h->le_num_slave++; 891 break; 892 case SCO_LINK: 893 case ESCO_LINK: 894 h->sco_num++; 895 break; 896 } 897 } 898 899 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 900 { 901 struct hci_conn_hash *h = &hdev->conn_hash; 902 903 list_del_rcu(&c->list); 904 synchronize_rcu(); 905 906 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_slave--; 917 break; 918 case SCO_LINK: 919 case ESCO_LINK: 920 h->sco_num--; 921 break; 922 } 923 } 924 925 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 926 { 927 struct hci_conn_hash *h = &hdev->conn_hash; 928 switch (type) { 929 case ACL_LINK: 930 return h->acl_num; 931 case AMP_LINK: 932 return h->amp_num; 933 case LE_LINK: 934 return h->le_num; 935 case SCO_LINK: 936 case ESCO_LINK: 937 return h->sco_num; 938 default: 939 return 0; 940 } 941 } 942 943 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 944 { 945 struct hci_conn_hash *c = &hdev->conn_hash; 946 947 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 948 } 949 950 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 951 { 952 struct hci_conn_hash *h = &hdev->conn_hash; 953 struct hci_conn *c; 954 __u8 type = INVALID_LINK; 955 956 rcu_read_lock(); 957 958 list_for_each_entry_rcu(c, &h->list, list) { 959 if (c->handle == handle) { 960 type = c->type; 961 break; 962 } 963 } 964 965 rcu_read_unlock(); 966 967 return type; 968 } 969 970 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 971 __u16 handle) 972 { 973 struct hci_conn_hash *h = &hdev->conn_hash; 974 struct hci_conn *c; 975 976 rcu_read_lock(); 977 978 list_for_each_entry_rcu(c, &h->list, list) { 979 if (c->handle == handle) { 980 rcu_read_unlock(); 981 return c; 982 } 983 } 984 rcu_read_unlock(); 985 986 return NULL; 987 } 988 989 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 990 __u8 type, bdaddr_t *ba) 991 { 992 struct hci_conn_hash *h = &hdev->conn_hash; 993 struct hci_conn *c; 994 995 rcu_read_lock(); 996 997 list_for_each_entry_rcu(c, &h->list, list) { 998 if (c->type == type && !bacmp(&c->dst, ba)) { 999 rcu_read_unlock(); 1000 return c; 1001 } 1002 } 1003 1004 rcu_read_unlock(); 1005 1006 return NULL; 1007 } 1008 1009 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1010 bdaddr_t *ba, 1011 __u8 ba_type) 1012 { 1013 struct hci_conn_hash *h = &hdev->conn_hash; 1014 struct hci_conn *c; 1015 1016 rcu_read_lock(); 1017 1018 list_for_each_entry_rcu(c, &h->list, list) { 1019 if (c->type != LE_LINK) 1020 continue; 1021 1022 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1023 rcu_read_unlock(); 1024 return c; 1025 } 1026 } 1027 1028 rcu_read_unlock(); 1029 1030 return NULL; 1031 } 1032 1033 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1034 __u8 type, __u16 state) 1035 { 1036 struct hci_conn_hash *h = &hdev->conn_hash; 1037 struct hci_conn *c; 1038 1039 rcu_read_lock(); 1040 1041 list_for_each_entry_rcu(c, &h->list, list) { 1042 if (c->type == type && c->state == state) { 1043 rcu_read_unlock(); 1044 return c; 1045 } 1046 } 1047 1048 rcu_read_unlock(); 1049 1050 return NULL; 1051 } 1052 1053 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1054 { 1055 struct hci_conn_hash *h = &hdev->conn_hash; 1056 struct hci_conn *c; 1057 1058 rcu_read_lock(); 1059 1060 list_for_each_entry_rcu(c, &h->list, list) { 1061 if (c->type == LE_LINK && c->state == BT_CONNECT && 1062 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1063 rcu_read_unlock(); 1064 return c; 1065 } 1066 } 1067 1068 rcu_read_unlock(); 1069 1070 return NULL; 1071 } 1072 1073 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1074 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1075 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1076 1077 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1078 u8 role); 1079 int hci_conn_del(struct hci_conn *conn); 1080 void hci_conn_hash_flush(struct hci_dev *hdev); 1081 void hci_conn_check_pending(struct hci_dev *hdev); 1082 1083 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1084 void hci_chan_del(struct hci_chan *chan); 1085 void hci_chan_list_flush(struct hci_conn *conn); 1086 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1087 1088 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1089 u8 dst_type, u8 sec_level, 1090 u16 conn_timeout, 1091 enum conn_reasons conn_reason); 1092 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1093 u8 dst_type, u8 sec_level, u16 conn_timeout, 1094 u8 role, bdaddr_t *direct_rpa); 1095 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1096 u8 sec_level, u8 auth_type, 1097 enum conn_reasons conn_reason); 1098 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1099 __u16 setting); 1100 int hci_conn_check_link_mode(struct hci_conn *conn); 1101 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1102 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1103 bool initiator); 1104 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1105 1106 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1107 1108 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 1109 1110 /* 1111 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1112 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1113 * working or anything else. They just guarantee that the object is available 1114 * and can be dereferenced. So you can use its locks, local variables and any 1115 * other constant data. 1116 * Before accessing runtime data, you _must_ lock the object and then check that 1117 * it is still running. As soon as you release the locks, the connection might 1118 * get dropped, though. 1119 * 1120 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1121 * how long the underlying connection is held. So every channel that runs on the 1122 * hci_conn object calls this to prevent the connection from disappearing. As 1123 * long as you hold a device, you must also guarantee that you have a valid 1124 * reference to the device via hci_conn_get() (or the initial reference from 1125 * hci_conn_add()). 1126 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1127 * break because nobody cares for that. But this means, we cannot use 1128 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1129 */ 1130 1131 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1132 { 1133 get_device(&conn->dev); 1134 return conn; 1135 } 1136 1137 static inline void hci_conn_put(struct hci_conn *conn) 1138 { 1139 put_device(&conn->dev); 1140 } 1141 1142 static inline void hci_conn_hold(struct hci_conn *conn) 1143 { 1144 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1145 1146 atomic_inc(&conn->refcnt); 1147 cancel_delayed_work(&conn->disc_work); 1148 } 1149 1150 static inline void hci_conn_drop(struct hci_conn *conn) 1151 { 1152 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1153 1154 if (atomic_dec_and_test(&conn->refcnt)) { 1155 unsigned long timeo; 1156 1157 switch (conn->type) { 1158 case ACL_LINK: 1159 case LE_LINK: 1160 cancel_delayed_work(&conn->idle_work); 1161 if (conn->state == BT_CONNECTED) { 1162 timeo = conn->disc_timeout; 1163 if (!conn->out) 1164 timeo *= 2; 1165 } else { 1166 timeo = 0; 1167 } 1168 break; 1169 1170 case AMP_LINK: 1171 timeo = conn->disc_timeout; 1172 break; 1173 1174 default: 1175 timeo = 0; 1176 break; 1177 } 1178 1179 cancel_delayed_work(&conn->disc_work); 1180 queue_delayed_work(conn->hdev->workqueue, 1181 &conn->disc_work, timeo); 1182 } 1183 } 1184 1185 /* ----- HCI Devices ----- */ 1186 static inline void hci_dev_put(struct hci_dev *d) 1187 { 1188 BT_DBG("%s orig refcnt %d", d->name, 1189 kref_read(&d->dev.kobj.kref)); 1190 1191 put_device(&d->dev); 1192 } 1193 1194 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1195 { 1196 BT_DBG("%s orig refcnt %d", d->name, 1197 kref_read(&d->dev.kobj.kref)); 1198 1199 get_device(&d->dev); 1200 return d; 1201 } 1202 1203 #define hci_dev_lock(d) mutex_lock(&d->lock) 1204 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1205 1206 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1207 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1208 1209 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1210 { 1211 return dev_get_drvdata(&hdev->dev); 1212 } 1213 1214 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1215 { 1216 dev_set_drvdata(&hdev->dev, data); 1217 } 1218 1219 struct hci_dev *hci_dev_get(int index); 1220 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1221 1222 struct hci_dev *hci_alloc_dev(void); 1223 void hci_free_dev(struct hci_dev *hdev); 1224 int hci_register_dev(struct hci_dev *hdev); 1225 void hci_unregister_dev(struct hci_dev *hdev); 1226 int hci_suspend_dev(struct hci_dev *hdev); 1227 int hci_resume_dev(struct hci_dev *hdev); 1228 int hci_reset_dev(struct hci_dev *hdev); 1229 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1230 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1231 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1232 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1233 1234 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1235 { 1236 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1237 hdev->msft_opcode = opcode; 1238 #endif 1239 } 1240 1241 int hci_dev_open(__u16 dev); 1242 int hci_dev_close(__u16 dev); 1243 int hci_dev_do_close(struct hci_dev *hdev); 1244 int hci_dev_reset(__u16 dev); 1245 int hci_dev_reset_stat(__u16 dev); 1246 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1247 int hci_get_dev_list(void __user *arg); 1248 int hci_get_dev_info(void __user *arg); 1249 int hci_get_conn_list(void __user *arg); 1250 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1251 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1252 int hci_inquiry(void __user *arg); 1253 1254 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1255 bdaddr_t *bdaddr, u8 type); 1256 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1257 struct list_head *list, bdaddr_t *bdaddr, 1258 u8 type); 1259 struct bdaddr_list_with_flags * 1260 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1261 u8 type); 1262 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1263 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1264 u8 type, u8 *peer_irk, u8 *local_irk); 1265 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1266 u8 type, u32 flags); 1267 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1268 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1269 u8 type); 1270 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1271 u8 type); 1272 void hci_bdaddr_list_clear(struct list_head *list); 1273 1274 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1275 bdaddr_t *addr, u8 addr_type); 1276 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1277 bdaddr_t *addr, u8 addr_type); 1278 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1279 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1280 1281 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1282 bdaddr_t *addr, 1283 u8 addr_type); 1284 1285 void hci_uuids_clear(struct hci_dev *hdev); 1286 1287 void hci_link_keys_clear(struct hci_dev *hdev); 1288 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1289 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1290 bdaddr_t *bdaddr, u8 *val, u8 type, 1291 u8 pin_len, bool *persistent); 1292 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1293 u8 addr_type, u8 type, u8 authenticated, 1294 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1295 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1296 u8 addr_type, u8 role); 1297 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1298 void hci_smp_ltks_clear(struct hci_dev *hdev); 1299 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1300 1301 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1302 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1303 u8 addr_type); 1304 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1305 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1306 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1307 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1308 void hci_blocked_keys_clear(struct hci_dev *hdev); 1309 void hci_smp_irks_clear(struct hci_dev *hdev); 1310 1311 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1312 1313 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1314 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1315 bdaddr_t *bdaddr, u8 bdaddr_type); 1316 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1317 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1318 u8 *hash256, u8 *rand256); 1319 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1320 u8 bdaddr_type); 1321 1322 void hci_adv_instances_clear(struct hci_dev *hdev); 1323 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1324 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1325 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1326 u16 adv_data_len, u8 *adv_data, 1327 u16 scan_rsp_len, u8 *scan_rsp_data, 1328 u16 timeout, u16 duration, s8 tx_power, 1329 u32 min_interval, u32 max_interval); 1330 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1331 u16 adv_data_len, u8 *adv_data, 1332 u16 scan_rsp_len, u8 *scan_rsp_data); 1333 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1334 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1335 1336 void hci_adv_monitors_clear(struct hci_dev *hdev); 1337 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1338 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1339 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1340 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor, 1341 int *err); 1342 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err); 1343 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err); 1344 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1345 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1346 1347 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1348 1349 void hci_init_sysfs(struct hci_dev *hdev); 1350 void hci_conn_init_sysfs(struct hci_conn *conn); 1351 void hci_conn_add_sysfs(struct hci_conn *conn); 1352 void hci_conn_del_sysfs(struct hci_conn *conn); 1353 1354 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1355 1356 /* ----- LMP capabilities ----- */ 1357 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1358 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1359 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1360 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1361 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1362 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1363 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1364 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1365 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1366 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1367 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1368 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1369 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1370 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1371 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1372 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1373 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1374 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1375 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1376 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1377 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1378 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1379 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1380 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1381 1382 /* ----- Extended LMP capabilities ----- */ 1383 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) 1384 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) 1385 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1386 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1387 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1388 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1389 1390 /* ----- Host capabilities ----- */ 1391 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1392 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1393 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1394 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1395 1396 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1397 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1398 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1399 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1400 1401 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1402 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1403 1404 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1405 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1406 1407 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1408 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1409 1410 /* Use LL Privacy based address resolution if supported */ 1411 #define use_ll_privacy(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1412 1413 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1414 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1415 ((dev)->commands[37] & 0x40)) 1416 /* Use ext create connection if command is supported */ 1417 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1418 1419 /* Extended advertising support */ 1420 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1421 1422 /* ----- HCI protocols ----- */ 1423 #define HCI_PROTO_DEFER 0x01 1424 1425 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1426 __u8 type, __u8 *flags) 1427 { 1428 switch (type) { 1429 case ACL_LINK: 1430 return l2cap_connect_ind(hdev, bdaddr); 1431 1432 case SCO_LINK: 1433 case ESCO_LINK: 1434 return sco_connect_ind(hdev, bdaddr, flags); 1435 1436 default: 1437 BT_ERR("unknown link type %d", type); 1438 return -EINVAL; 1439 } 1440 } 1441 1442 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1443 { 1444 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1445 return HCI_ERROR_REMOTE_USER_TERM; 1446 1447 return l2cap_disconn_ind(conn); 1448 } 1449 1450 /* ----- HCI callbacks ----- */ 1451 struct hci_cb { 1452 struct list_head list; 1453 1454 char *name; 1455 1456 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 1457 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 1458 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1459 __u8 encrypt); 1460 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1461 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1462 }; 1463 1464 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1465 { 1466 struct hci_cb *cb; 1467 1468 mutex_lock(&hci_cb_list_lock); 1469 list_for_each_entry(cb, &hci_cb_list, list) { 1470 if (cb->connect_cfm) 1471 cb->connect_cfm(conn, status); 1472 } 1473 mutex_unlock(&hci_cb_list_lock); 1474 1475 if (conn->connect_cfm_cb) 1476 conn->connect_cfm_cb(conn, status); 1477 } 1478 1479 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 1480 { 1481 struct hci_cb *cb; 1482 1483 mutex_lock(&hci_cb_list_lock); 1484 list_for_each_entry(cb, &hci_cb_list, list) { 1485 if (cb->disconn_cfm) 1486 cb->disconn_cfm(conn, reason); 1487 } 1488 mutex_unlock(&hci_cb_list_lock); 1489 1490 if (conn->disconn_cfm_cb) 1491 conn->disconn_cfm_cb(conn, reason); 1492 } 1493 1494 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1495 { 1496 struct hci_cb *cb; 1497 __u8 encrypt; 1498 1499 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1500 return; 1501 1502 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1503 1504 mutex_lock(&hci_cb_list_lock); 1505 list_for_each_entry(cb, &hci_cb_list, list) { 1506 if (cb->security_cfm) 1507 cb->security_cfm(conn, status, encrypt); 1508 } 1509 mutex_unlock(&hci_cb_list_lock); 1510 1511 if (conn->security_cfm_cb) 1512 conn->security_cfm_cb(conn, status); 1513 } 1514 1515 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 1516 { 1517 struct hci_cb *cb; 1518 __u8 encrypt; 1519 1520 if (conn->state == BT_CONFIG) { 1521 if (!status) 1522 conn->state = BT_CONNECTED; 1523 1524 hci_connect_cfm(conn, status); 1525 hci_conn_drop(conn); 1526 return; 1527 } 1528 1529 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 1530 encrypt = 0x00; 1531 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 1532 encrypt = 0x02; 1533 else 1534 encrypt = 0x01; 1535 1536 if (!status) { 1537 if (conn->sec_level == BT_SECURITY_SDP) 1538 conn->sec_level = BT_SECURITY_LOW; 1539 1540 if (conn->pending_sec_level > conn->sec_level) 1541 conn->sec_level = conn->pending_sec_level; 1542 } 1543 1544 mutex_lock(&hci_cb_list_lock); 1545 list_for_each_entry(cb, &hci_cb_list, list) { 1546 if (cb->security_cfm) 1547 cb->security_cfm(conn, status, encrypt); 1548 } 1549 mutex_unlock(&hci_cb_list_lock); 1550 1551 if (conn->security_cfm_cb) 1552 conn->security_cfm_cb(conn, status); 1553 } 1554 1555 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1556 { 1557 struct hci_cb *cb; 1558 1559 mutex_lock(&hci_cb_list_lock); 1560 list_for_each_entry(cb, &hci_cb_list, list) { 1561 if (cb->key_change_cfm) 1562 cb->key_change_cfm(conn, status); 1563 } 1564 mutex_unlock(&hci_cb_list_lock); 1565 } 1566 1567 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1568 __u8 role) 1569 { 1570 struct hci_cb *cb; 1571 1572 mutex_lock(&hci_cb_list_lock); 1573 list_for_each_entry(cb, &hci_cb_list, list) { 1574 if (cb->role_switch_cfm) 1575 cb->role_switch_cfm(conn, status, role); 1576 } 1577 mutex_unlock(&hci_cb_list_lock); 1578 } 1579 1580 static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type, 1581 size_t *data_len) 1582 { 1583 size_t parsed = 0; 1584 1585 if (eir_len < 2) 1586 return NULL; 1587 1588 while (parsed < eir_len - 1) { 1589 u8 field_len = eir[0]; 1590 1591 if (field_len == 0) 1592 break; 1593 1594 parsed += field_len + 1; 1595 1596 if (parsed > eir_len) 1597 break; 1598 1599 if (eir[1] != type) { 1600 eir += field_len + 1; 1601 continue; 1602 } 1603 1604 /* Zero length data */ 1605 if (field_len == 1) 1606 return NULL; 1607 1608 if (data_len) 1609 *data_len = field_len - 1; 1610 1611 return &eir[2]; 1612 } 1613 1614 return NULL; 1615 } 1616 1617 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1618 { 1619 if (addr_type != ADDR_LE_DEV_RANDOM) 1620 return false; 1621 1622 if ((bdaddr->b[5] & 0xc0) == 0x40) 1623 return true; 1624 1625 return false; 1626 } 1627 1628 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1629 { 1630 if (addr_type == ADDR_LE_DEV_PUBLIC) 1631 return true; 1632 1633 /* Check for Random Static address type */ 1634 if ((addr->b[5] & 0xc0) == 0xc0) 1635 return true; 1636 1637 return false; 1638 } 1639 1640 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1641 bdaddr_t *bdaddr, u8 addr_type) 1642 { 1643 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1644 return NULL; 1645 1646 return hci_find_irk_by_rpa(hdev, bdaddr); 1647 } 1648 1649 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1650 u16 to_multiplier) 1651 { 1652 u16 max_latency; 1653 1654 if (min > max || min < 6 || max > 3200) 1655 return -EINVAL; 1656 1657 if (to_multiplier < 10 || to_multiplier > 3200) 1658 return -EINVAL; 1659 1660 if (max >= to_multiplier * 8) 1661 return -EINVAL; 1662 1663 max_latency = (to_multiplier * 4 / max) - 1; 1664 if (latency > 499 || latency > max_latency) 1665 return -EINVAL; 1666 1667 return 0; 1668 } 1669 1670 int hci_register_cb(struct hci_cb *hcb); 1671 int hci_unregister_cb(struct hci_cb *hcb); 1672 1673 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1674 const void *param, u32 timeout); 1675 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 1676 const void *param, u8 event, u32 timeout); 1677 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1678 const void *param); 1679 1680 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1681 const void *param); 1682 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1683 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1684 1685 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1686 1687 struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1688 const void *param, u32 timeout); 1689 1690 u32 hci_conn_get_phy(struct hci_conn *conn); 1691 1692 /* ----- HCI Sockets ----- */ 1693 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1694 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1695 int flag, struct sock *skip_sk); 1696 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1697 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 1698 void *data, u16 data_len, ktime_t tstamp, 1699 int flag, struct sock *skip_sk); 1700 1701 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1702 1703 #define HCI_MGMT_VAR_LEN BIT(0) 1704 #define HCI_MGMT_NO_HDEV BIT(1) 1705 #define HCI_MGMT_UNTRUSTED BIT(2) 1706 #define HCI_MGMT_UNCONFIGURED BIT(3) 1707 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 1708 1709 struct hci_mgmt_handler { 1710 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1711 u16 data_len); 1712 size_t data_len; 1713 unsigned long flags; 1714 }; 1715 1716 struct hci_mgmt_chan { 1717 struct list_head list; 1718 unsigned short channel; 1719 size_t handler_count; 1720 const struct hci_mgmt_handler *handlers; 1721 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1722 }; 1723 1724 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1725 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1726 1727 /* Management interface */ 1728 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1729 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1730 BIT(BDADDR_LE_RANDOM)) 1731 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1732 BIT(BDADDR_LE_PUBLIC) | \ 1733 BIT(BDADDR_LE_RANDOM)) 1734 1735 /* These LE scan and inquiry parameters were chosen according to LE General 1736 * Discovery Procedure specification. 1737 */ 1738 #define DISCOV_LE_SCAN_WIN 0x12 1739 #define DISCOV_LE_SCAN_INT 0x12 1740 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1741 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1742 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1743 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1744 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 1745 #define DISCOV_LE_FAST_ADV_INT_MIN 100 /* msec */ 1746 #define DISCOV_LE_FAST_ADV_INT_MAX 150 /* msec */ 1747 1748 void mgmt_fill_version_info(void *ver); 1749 int mgmt_new_settings(struct hci_dev *hdev); 1750 void mgmt_index_added(struct hci_dev *hdev); 1751 void mgmt_index_removed(struct hci_dev *hdev); 1752 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1753 void mgmt_power_on(struct hci_dev *hdev, int err); 1754 void __mgmt_power_off(struct hci_dev *hdev); 1755 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1756 bool persistent); 1757 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 1758 u32 flags, u8 *name, u8 name_len); 1759 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1760 u8 link_type, u8 addr_type, u8 reason, 1761 bool mgmt_connected); 1762 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1763 u8 link_type, u8 addr_type, u8 status); 1764 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1765 u8 addr_type, u8 status); 1766 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1767 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1768 u8 status); 1769 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1770 u8 status); 1771 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1772 u8 link_type, u8 addr_type, u32 value, 1773 u8 confirm_hint); 1774 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1775 u8 link_type, u8 addr_type, u8 status); 1776 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1777 u8 link_type, u8 addr_type, u8 status); 1778 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1779 u8 link_type, u8 addr_type); 1780 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1781 u8 link_type, u8 addr_type, u8 status); 1782 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1783 u8 link_type, u8 addr_type, u8 status); 1784 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1785 u8 link_type, u8 addr_type, u32 passkey, 1786 u8 entered); 1787 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1788 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1789 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1790 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1791 u8 status); 1792 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1793 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 1794 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1795 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1796 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1797 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1798 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1799 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1800 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1801 void mgmt_suspending(struct hci_dev *hdev, u8 state); 1802 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 1803 u8 addr_type); 1804 bool mgmt_powering_down(struct hci_dev *hdev); 1805 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1806 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 1807 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1808 bool persistent); 1809 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1810 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1811 u16 max_interval, u16 latency, u16 timeout); 1812 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1813 bool mgmt_get_connectable(struct hci_dev *hdev); 1814 void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); 1815 void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); 1816 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1817 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1818 u8 instance); 1819 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1820 u8 instance); 1821 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 1822 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1823 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1824 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1825 1826 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1827 u16 to_multiplier); 1828 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1829 __u8 ltk[16], __u8 key_size); 1830 1831 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1832 u8 *bdaddr_type); 1833 1834 #define SCO_AIRMODE_MASK 0x0003 1835 #define SCO_AIRMODE_CVSD 0x0000 1836 #define SCO_AIRMODE_TRANSP 0x0003 1837 1838 #endif /* __HCI_CORE_H */ 1839