1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23 */ 24 25 #ifndef __HCI_CORE_H 26 #define __HCI_CORE_H 27 28 #include <linux/idr.h> 29 #include <linux/leds.h> 30 #include <linux/rculist.h> 31 32 #include <net/bluetooth/hci.h> 33 #include <net/bluetooth/hci_sync.h> 34 #include <net/bluetooth/hci_sock.h> 35 36 /* HCI priority */ 37 #define HCI_PRIO_MAX 7 38 39 /* HCI Core structures */ 40 struct inquiry_data { 41 bdaddr_t bdaddr; 42 __u8 pscan_rep_mode; 43 __u8 pscan_period_mode; 44 __u8 pscan_mode; 45 __u8 dev_class[3]; 46 __le16 clock_offset; 47 __s8 rssi; 48 __u8 ssp_mode; 49 }; 50 51 struct inquiry_entry { 52 struct list_head all; /* inq_cache.all */ 53 struct list_head list; /* unknown or resolve */ 54 enum { 55 NAME_NOT_KNOWN, 56 NAME_NEEDED, 57 NAME_PENDING, 58 NAME_KNOWN, 59 } name_state; 60 __u32 timestamp; 61 struct inquiry_data data; 62 }; 63 64 struct discovery_state { 65 int type; 66 enum { 67 DISCOVERY_STOPPED, 68 DISCOVERY_STARTING, 69 DISCOVERY_FINDING, 70 DISCOVERY_RESOLVING, 71 DISCOVERY_STOPPING, 72 } state; 73 struct list_head all; /* All devices found during inquiry */ 74 struct list_head unknown; /* Name state not known */ 75 struct list_head resolve; /* Name needs to be resolved */ 76 __u32 timestamp; 77 bdaddr_t last_adv_addr; 78 u8 last_adv_addr_type; 79 s8 last_adv_rssi; 80 u32 last_adv_flags; 81 u8 last_adv_data[HCI_MAX_AD_LENGTH]; 82 u8 last_adv_data_len; 83 bool report_invalid_rssi; 84 bool result_filtering; 85 bool limited; 86 s8 rssi; 87 u16 uuid_count; 88 u8 (*uuids)[16]; 89 unsigned long scan_start; 90 unsigned long scan_duration; 91 unsigned long name_resolve_timeout; 92 }; 93 94 #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ 95 96 enum suspend_tasks { 97 SUSPEND_PAUSE_DISCOVERY, 98 SUSPEND_UNPAUSE_DISCOVERY, 99 100 SUSPEND_PAUSE_ADVERTISING, 101 SUSPEND_UNPAUSE_ADVERTISING, 102 103 SUSPEND_SCAN_DISABLE, 104 SUSPEND_SCAN_ENABLE, 105 SUSPEND_DISCONNECTING, 106 107 SUSPEND_POWERING_DOWN, 108 109 SUSPEND_PREPARE_NOTIFIER, 110 111 SUSPEND_SET_ADV_FILTER, 112 __SUSPEND_NUM_TASKS 113 }; 114 115 enum suspended_state { 116 BT_RUNNING = 0, 117 BT_SUSPEND_DISCONNECT, 118 BT_SUSPEND_CONFIGURE_WAKE, 119 }; 120 121 struct hci_conn_hash { 122 struct list_head list; 123 unsigned int acl_num; 124 unsigned int amp_num; 125 unsigned int sco_num; 126 unsigned int le_num; 127 unsigned int le_num_peripheral; 128 }; 129 130 struct bdaddr_list { 131 struct list_head list; 132 bdaddr_t bdaddr; 133 u8 bdaddr_type; 134 }; 135 136 struct codec_list { 137 struct list_head list; 138 u8 id; 139 __u16 cid; 140 __u16 vid; 141 u8 transport; 142 u8 num_caps; 143 u32 len; 144 struct hci_codec_caps caps[]; 145 }; 146 147 struct bdaddr_list_with_irk { 148 struct list_head list; 149 bdaddr_t bdaddr; 150 u8 bdaddr_type; 151 u8 peer_irk[16]; 152 u8 local_irk[16]; 153 }; 154 155 enum hci_conn_flags { 156 HCI_CONN_FLAG_REMOTE_WAKEUP, 157 HCI_CONN_FLAG_DEVICE_PRIVACY, 158 159 __HCI_CONN_NUM_FLAGS, 160 }; 161 162 /* Make sure number of flags doesn't exceed sizeof(current_flags) */ 163 static_assert(__HCI_CONN_NUM_FLAGS < 32); 164 165 struct bdaddr_list_with_flags { 166 struct list_head list; 167 bdaddr_t bdaddr; 168 u8 bdaddr_type; 169 DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS); 170 }; 171 172 struct bt_uuid { 173 struct list_head list; 174 u8 uuid[16]; 175 u8 size; 176 u8 svc_hint; 177 }; 178 179 struct blocked_key { 180 struct list_head list; 181 struct rcu_head rcu; 182 u8 type; 183 u8 val[16]; 184 }; 185 186 struct smp_csrk { 187 bdaddr_t bdaddr; 188 u8 bdaddr_type; 189 u8 type; 190 u8 val[16]; 191 }; 192 193 struct smp_ltk { 194 struct list_head list; 195 struct rcu_head rcu; 196 bdaddr_t bdaddr; 197 u8 bdaddr_type; 198 u8 authenticated; 199 u8 type; 200 u8 enc_size; 201 __le16 ediv; 202 __le64 rand; 203 u8 val[16]; 204 }; 205 206 struct smp_irk { 207 struct list_head list; 208 struct rcu_head rcu; 209 bdaddr_t rpa; 210 bdaddr_t bdaddr; 211 u8 addr_type; 212 u8 val[16]; 213 }; 214 215 struct link_key { 216 struct list_head list; 217 struct rcu_head rcu; 218 bdaddr_t bdaddr; 219 u8 type; 220 u8 val[HCI_LINK_KEY_SIZE]; 221 u8 pin_len; 222 }; 223 224 struct oob_data { 225 struct list_head list; 226 bdaddr_t bdaddr; 227 u8 bdaddr_type; 228 u8 present; 229 u8 hash192[16]; 230 u8 rand192[16]; 231 u8 hash256[16]; 232 u8 rand256[16]; 233 }; 234 235 struct adv_info { 236 struct list_head list; 237 bool enabled; 238 bool pending; 239 __u8 instance; 240 __u32 flags; 241 __u16 timeout; 242 __u16 remaining_time; 243 __u16 duration; 244 __u16 adv_data_len; 245 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 246 __u16 scan_rsp_len; 247 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 248 __s8 tx_power; 249 __u32 min_interval; 250 __u32 max_interval; 251 bdaddr_t random_addr; 252 bool rpa_expired; 253 struct delayed_work rpa_expired_cb; 254 }; 255 256 #define HCI_MAX_ADV_INSTANCES 5 257 #define HCI_DEFAULT_ADV_DURATION 2 258 259 #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F 260 261 struct adv_pattern { 262 struct list_head list; 263 __u8 ad_type; 264 __u8 offset; 265 __u8 length; 266 __u8 value[HCI_MAX_AD_LENGTH]; 267 }; 268 269 struct adv_rssi_thresholds { 270 __s8 low_threshold; 271 __s8 high_threshold; 272 __u16 low_threshold_timeout; 273 __u16 high_threshold_timeout; 274 __u8 sampling_period; 275 }; 276 277 struct adv_monitor { 278 struct list_head patterns; 279 struct adv_rssi_thresholds rssi; 280 __u16 handle; 281 282 enum { 283 ADV_MONITOR_STATE_NOT_REGISTERED, 284 ADV_MONITOR_STATE_REGISTERED, 285 ADV_MONITOR_STATE_OFFLOADED 286 } state; 287 }; 288 289 #define HCI_MIN_ADV_MONITOR_HANDLE 1 290 #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 291 #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 292 #define HCI_ADV_MONITOR_EXT_NONE 1 293 #define HCI_ADV_MONITOR_EXT_MSFT 2 294 295 #define HCI_MAX_SHORT_NAME_LENGTH 10 296 297 /* Min encryption key size to match with SMP */ 298 #define HCI_MIN_ENC_KEY_SIZE 7 299 300 /* Default LE RPA expiry time, 15 minutes */ 301 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 302 303 /* Default min/max age of connection information (1s/3s) */ 304 #define DEFAULT_CONN_INFO_MIN_AGE 1000 305 #define DEFAULT_CONN_INFO_MAX_AGE 3000 306 /* Default authenticated payload timeout 30s */ 307 #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 308 309 struct amp_assoc { 310 __u16 len; 311 __u16 offset; 312 __u16 rem_len; 313 __u16 len_so_far; 314 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 315 }; 316 317 #define HCI_MAX_PAGES 3 318 319 struct hci_dev { 320 struct list_head list; 321 struct mutex lock; 322 323 char name[8]; 324 unsigned long flags; 325 __u16 id; 326 __u8 bus; 327 __u8 dev_type; 328 bdaddr_t bdaddr; 329 bdaddr_t setup_addr; 330 bdaddr_t public_addr; 331 bdaddr_t random_addr; 332 bdaddr_t static_addr; 333 __u8 adv_addr_type; 334 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 335 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 336 __u8 eir[HCI_MAX_EIR_LENGTH]; 337 __u16 appearance; 338 __u8 dev_class[3]; 339 __u8 major_class; 340 __u8 minor_class; 341 __u8 max_page; 342 __u8 features[HCI_MAX_PAGES][8]; 343 __u8 le_features[8]; 344 __u8 le_accept_list_size; 345 __u8 le_resolv_list_size; 346 __u8 le_num_of_adv_sets; 347 __u8 le_states[8]; 348 __u8 commands[64]; 349 __u8 hci_ver; 350 __u16 hci_rev; 351 __u8 lmp_ver; 352 __u16 manufacturer; 353 __u16 lmp_subver; 354 __u16 voice_setting; 355 __u8 num_iac; 356 __u16 stored_max_keys; 357 __u16 stored_num_keys; 358 __u8 io_capability; 359 __s8 inq_tx_power; 360 __u8 err_data_reporting; 361 __u16 page_scan_interval; 362 __u16 page_scan_window; 363 __u8 page_scan_type; 364 __u8 le_adv_channel_map; 365 __u16 le_adv_min_interval; 366 __u16 le_adv_max_interval; 367 __u8 le_scan_type; 368 __u16 le_scan_interval; 369 __u16 le_scan_window; 370 __u16 le_scan_int_suspend; 371 __u16 le_scan_window_suspend; 372 __u16 le_scan_int_discovery; 373 __u16 le_scan_window_discovery; 374 __u16 le_scan_int_adv_monitor; 375 __u16 le_scan_window_adv_monitor; 376 __u16 le_scan_int_connect; 377 __u16 le_scan_window_connect; 378 __u16 le_conn_min_interval; 379 __u16 le_conn_max_interval; 380 __u16 le_conn_latency; 381 __u16 le_supv_timeout; 382 __u16 le_def_tx_len; 383 __u16 le_def_tx_time; 384 __u16 le_max_tx_len; 385 __u16 le_max_tx_time; 386 __u16 le_max_rx_len; 387 __u16 le_max_rx_time; 388 __u8 le_max_key_size; 389 __u8 le_min_key_size; 390 __u16 discov_interleaved_timeout; 391 __u16 conn_info_min_age; 392 __u16 conn_info_max_age; 393 __u16 auth_payload_timeout; 394 __u8 min_enc_key_size; 395 __u8 max_enc_key_size; 396 __u8 pairing_opts; 397 __u8 ssp_debug_mode; 398 __u8 hw_error_code; 399 __u32 clock; 400 __u16 advmon_allowlist_duration; 401 __u16 advmon_no_filter_duration; 402 __u8 enable_advmon_interleave_scan; 403 404 __u16 devid_source; 405 __u16 devid_vendor; 406 __u16 devid_product; 407 __u16 devid_version; 408 409 __u8 def_page_scan_type; 410 __u16 def_page_scan_int; 411 __u16 def_page_scan_window; 412 __u8 def_inq_scan_type; 413 __u16 def_inq_scan_int; 414 __u16 def_inq_scan_window; 415 __u16 def_br_lsto; 416 __u16 def_page_timeout; 417 __u16 def_multi_adv_rotation_duration; 418 __u16 def_le_autoconnect_timeout; 419 __s8 min_le_tx_power; 420 __s8 max_le_tx_power; 421 422 __u16 pkt_type; 423 __u16 esco_type; 424 __u16 link_policy; 425 __u16 link_mode; 426 427 __u32 idle_timeout; 428 __u16 sniff_min_interval; 429 __u16 sniff_max_interval; 430 431 __u8 amp_status; 432 __u32 amp_total_bw; 433 __u32 amp_max_bw; 434 __u32 amp_min_latency; 435 __u32 amp_max_pdu; 436 __u8 amp_type; 437 __u16 amp_pal_cap; 438 __u16 amp_assoc_size; 439 __u32 amp_max_flush_to; 440 __u32 amp_be_flush_to; 441 442 struct amp_assoc loc_assoc; 443 444 __u8 flow_ctl_mode; 445 446 unsigned int auto_accept_delay; 447 448 unsigned long quirks; 449 450 atomic_t cmd_cnt; 451 unsigned int acl_cnt; 452 unsigned int sco_cnt; 453 unsigned int le_cnt; 454 455 unsigned int acl_mtu; 456 unsigned int sco_mtu; 457 unsigned int le_mtu; 458 unsigned int acl_pkts; 459 unsigned int sco_pkts; 460 unsigned int le_pkts; 461 462 __u16 block_len; 463 __u16 block_mtu; 464 __u16 num_blocks; 465 __u16 block_cnt; 466 467 unsigned long acl_last_tx; 468 unsigned long sco_last_tx; 469 unsigned long le_last_tx; 470 471 __u8 le_tx_def_phys; 472 __u8 le_rx_def_phys; 473 474 struct workqueue_struct *workqueue; 475 struct workqueue_struct *req_workqueue; 476 477 struct work_struct power_on; 478 struct delayed_work power_off; 479 struct work_struct error_reset; 480 struct work_struct cmd_sync_work; 481 struct list_head cmd_sync_work_list; 482 struct mutex cmd_sync_work_lock; 483 484 __u16 discov_timeout; 485 struct delayed_work discov_off; 486 487 struct delayed_work service_cache; 488 489 struct delayed_work cmd_timer; 490 struct delayed_work ncmd_timer; 491 492 struct work_struct rx_work; 493 struct work_struct cmd_work; 494 struct work_struct tx_work; 495 496 struct work_struct discov_update; 497 struct work_struct scan_update; 498 struct delayed_work le_scan_disable; 499 struct delayed_work le_scan_restart; 500 501 struct sk_buff_head rx_q; 502 struct sk_buff_head raw_q; 503 struct sk_buff_head cmd_q; 504 505 struct sk_buff *sent_cmd; 506 507 struct mutex req_lock; 508 wait_queue_head_t req_wait_q; 509 __u32 req_status; 510 __u32 req_result; 511 struct sk_buff *req_skb; 512 513 void *smp_data; 514 void *smp_bredr_data; 515 516 struct discovery_state discovery; 517 518 int discovery_old_state; 519 bool discovery_paused; 520 int advertising_old_state; 521 bool advertising_paused; 522 523 struct notifier_block suspend_notifier; 524 enum suspended_state suspend_state_next; 525 enum suspended_state suspend_state; 526 bool scanning_paused; 527 bool suspended; 528 u8 wake_reason; 529 bdaddr_t wake_addr; 530 u8 wake_addr_type; 531 532 struct hci_conn_hash conn_hash; 533 534 struct list_head mgmt_pending; 535 struct list_head reject_list; 536 struct list_head accept_list; 537 struct list_head uuids; 538 struct list_head link_keys; 539 struct list_head long_term_keys; 540 struct list_head identity_resolving_keys; 541 struct list_head remote_oob_data; 542 struct list_head le_accept_list; 543 struct list_head le_resolv_list; 544 struct list_head le_conn_params; 545 struct list_head pend_le_conns; 546 struct list_head pend_le_reports; 547 struct list_head blocked_keys; 548 struct list_head local_codecs; 549 550 struct hci_dev_stats stat; 551 552 atomic_t promisc; 553 554 const char *hw_info; 555 const char *fw_info; 556 struct dentry *debugfs; 557 558 struct device dev; 559 560 struct rfkill *rfkill; 561 562 DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 563 DECLARE_BITMAP(conn_flags, __HCI_CONN_NUM_FLAGS); 564 565 __s8 adv_tx_power; 566 __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; 567 __u8 adv_data_len; 568 __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; 569 __u8 scan_rsp_data_len; 570 571 struct list_head adv_instances; 572 unsigned int adv_instance_cnt; 573 __u8 cur_adv_instance; 574 __u16 adv_instance_timeout; 575 struct delayed_work adv_instance_expire; 576 577 struct idr adv_monitors_idr; 578 unsigned int adv_monitors_cnt; 579 580 __u8 irk[16]; 581 __u32 rpa_timeout; 582 struct delayed_work rpa_expired; 583 bdaddr_t rpa; 584 585 enum { 586 INTERLEAVE_SCAN_NONE, 587 INTERLEAVE_SCAN_NO_FILTER, 588 INTERLEAVE_SCAN_ALLOWLIST 589 } interleave_scan_state; 590 591 struct delayed_work interleave_scan; 592 593 #if IS_ENABLED(CONFIG_BT_LEDS) 594 struct led_trigger *power_led; 595 #endif 596 597 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 598 __u16 msft_opcode; 599 void *msft_data; 600 bool msft_curve_validity; 601 #endif 602 603 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 604 bool aosp_capable; 605 bool aosp_quality_report; 606 #endif 607 608 int (*open)(struct hci_dev *hdev); 609 int (*close)(struct hci_dev *hdev); 610 int (*flush)(struct hci_dev *hdev); 611 int (*setup)(struct hci_dev *hdev); 612 int (*shutdown)(struct hci_dev *hdev); 613 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 614 void (*notify)(struct hci_dev *hdev, unsigned int evt); 615 void (*hw_error)(struct hci_dev *hdev, u8 code); 616 int (*post_init)(struct hci_dev *hdev); 617 int (*set_diag)(struct hci_dev *hdev, bool enable); 618 int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 619 void (*cmd_timeout)(struct hci_dev *hdev); 620 bool (*wakeup)(struct hci_dev *hdev); 621 int (*set_quality_report)(struct hci_dev *hdev, bool enable); 622 int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); 623 int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, 624 struct bt_codec *codec, __u8 *vnd_len, 625 __u8 **vnd_data); 626 }; 627 628 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 629 630 enum conn_reasons { 631 CONN_REASON_PAIR_DEVICE, 632 CONN_REASON_L2CAP_CHAN, 633 CONN_REASON_SCO_CONNECT, 634 }; 635 636 struct hci_conn { 637 struct list_head list; 638 639 atomic_t refcnt; 640 641 bdaddr_t dst; 642 __u8 dst_type; 643 bdaddr_t src; 644 __u8 src_type; 645 bdaddr_t init_addr; 646 __u8 init_addr_type; 647 bdaddr_t resp_addr; 648 __u8 resp_addr_type; 649 __u8 adv_instance; 650 __u16 handle; 651 __u16 state; 652 __u8 mode; 653 __u8 type; 654 __u8 role; 655 bool out; 656 __u8 attempt; 657 __u8 dev_class[3]; 658 __u8 features[HCI_MAX_PAGES][8]; 659 __u16 pkt_type; 660 __u16 link_policy; 661 __u8 key_type; 662 __u8 auth_type; 663 __u8 sec_level; 664 __u8 pending_sec_level; 665 __u8 pin_length; 666 __u8 enc_key_size; 667 __u8 io_capability; 668 __u32 passkey_notify; 669 __u8 passkey_entered; 670 __u16 disc_timeout; 671 __u16 conn_timeout; 672 __u16 setting; 673 __u16 auth_payload_timeout; 674 __u16 le_conn_min_interval; 675 __u16 le_conn_max_interval; 676 __u16 le_conn_interval; 677 __u16 le_conn_latency; 678 __u16 le_supv_timeout; 679 __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 680 __u8 le_adv_data_len; 681 __u8 le_tx_phy; 682 __u8 le_rx_phy; 683 __s8 rssi; 684 __s8 tx_power; 685 __s8 max_tx_power; 686 unsigned long flags; 687 688 enum conn_reasons conn_reason; 689 690 __u32 clock; 691 __u16 clock_accuracy; 692 693 unsigned long conn_info_timestamp; 694 695 __u8 remote_cap; 696 __u8 remote_auth; 697 __u8 remote_id; 698 699 unsigned int sent; 700 701 struct sk_buff_head data_q; 702 struct list_head chan_list; 703 704 struct delayed_work disc_work; 705 struct delayed_work auto_accept_work; 706 struct delayed_work idle_work; 707 struct delayed_work le_conn_timeout; 708 struct work_struct le_scan_cleanup; 709 710 struct device dev; 711 struct dentry *debugfs; 712 713 struct hci_dev *hdev; 714 void *l2cap_data; 715 void *sco_data; 716 struct amp_mgr *amp_mgr; 717 718 struct hci_conn *link; 719 struct bt_codec codec; 720 721 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 722 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 723 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 724 }; 725 726 struct hci_chan { 727 struct list_head list; 728 __u16 handle; 729 struct hci_conn *conn; 730 struct sk_buff_head data_q; 731 unsigned int sent; 732 __u8 state; 733 bool amp; 734 }; 735 736 struct hci_conn_params { 737 struct list_head list; 738 struct list_head action; 739 740 bdaddr_t addr; 741 u8 addr_type; 742 743 u16 conn_min_interval; 744 u16 conn_max_interval; 745 u16 conn_latency; 746 u16 supervision_timeout; 747 748 enum { 749 HCI_AUTO_CONN_DISABLED, 750 HCI_AUTO_CONN_REPORT, 751 HCI_AUTO_CONN_DIRECT, 752 HCI_AUTO_CONN_ALWAYS, 753 HCI_AUTO_CONN_LINK_LOSS, 754 HCI_AUTO_CONN_EXPLICIT, 755 } auto_connect; 756 757 struct hci_conn *conn; 758 bool explicit_connect; 759 DECLARE_BITMAP(flags, __HCI_CONN_NUM_FLAGS); 760 u8 privacy_mode; 761 }; 762 763 extern struct list_head hci_dev_list; 764 extern struct list_head hci_cb_list; 765 extern rwlock_t hci_dev_list_lock; 766 extern struct mutex hci_cb_list_lock; 767 768 #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 769 #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 770 #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 771 #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 772 #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 773 #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 774 #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 775 776 #define hci_dev_clear_volatile_flags(hdev) \ 777 do { \ 778 hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 779 hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 780 hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ 781 hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 782 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ 783 } while (0) 784 785 /* ----- HCI interface to upper protocols ----- */ 786 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 787 int l2cap_disconn_ind(struct hci_conn *hcon); 788 void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 789 790 #if IS_ENABLED(CONFIG_BT_BREDR) 791 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 792 void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 793 #else 794 static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 795 __u8 *flags) 796 { 797 return 0; 798 } 799 800 static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 801 { 802 } 803 #endif 804 805 /* ----- Inquiry cache ----- */ 806 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 807 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 808 809 static inline void discovery_init(struct hci_dev *hdev) 810 { 811 hdev->discovery.state = DISCOVERY_STOPPED; 812 INIT_LIST_HEAD(&hdev->discovery.all); 813 INIT_LIST_HEAD(&hdev->discovery.unknown); 814 INIT_LIST_HEAD(&hdev->discovery.resolve); 815 hdev->discovery.report_invalid_rssi = true; 816 hdev->discovery.rssi = HCI_RSSI_INVALID; 817 } 818 819 static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 820 { 821 hdev->discovery.result_filtering = false; 822 hdev->discovery.report_invalid_rssi = true; 823 hdev->discovery.rssi = HCI_RSSI_INVALID; 824 hdev->discovery.uuid_count = 0; 825 kfree(hdev->discovery.uuids); 826 hdev->discovery.uuids = NULL; 827 hdev->discovery.scan_start = 0; 828 hdev->discovery.scan_duration = 0; 829 } 830 831 bool hci_discovery_active(struct hci_dev *hdev); 832 833 void hci_discovery_set_state(struct hci_dev *hdev, int state); 834 835 static inline int inquiry_cache_empty(struct hci_dev *hdev) 836 { 837 return list_empty(&hdev->discovery.all); 838 } 839 840 static inline long inquiry_cache_age(struct hci_dev *hdev) 841 { 842 struct discovery_state *c = &hdev->discovery; 843 return jiffies - c->timestamp; 844 } 845 846 static inline long inquiry_entry_age(struct inquiry_entry *e) 847 { 848 return jiffies - e->timestamp; 849 } 850 851 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 852 bdaddr_t *bdaddr); 853 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 854 bdaddr_t *bdaddr); 855 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 856 bdaddr_t *bdaddr, 857 int state); 858 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 859 struct inquiry_entry *ie); 860 u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 861 bool name_known); 862 void hci_inquiry_cache_flush(struct hci_dev *hdev); 863 864 /* ----- HCI Connections ----- */ 865 enum { 866 HCI_CONN_AUTH_PEND, 867 HCI_CONN_REAUTH_PEND, 868 HCI_CONN_ENCRYPT_PEND, 869 HCI_CONN_RSWITCH_PEND, 870 HCI_CONN_MODE_CHANGE_PEND, 871 HCI_CONN_SCO_SETUP_PEND, 872 HCI_CONN_MGMT_CONNECTED, 873 HCI_CONN_SSP_ENABLED, 874 HCI_CONN_SC_ENABLED, 875 HCI_CONN_AES_CCM, 876 HCI_CONN_POWER_SAVE, 877 HCI_CONN_FLUSH_KEY, 878 HCI_CONN_ENCRYPT, 879 HCI_CONN_AUTH, 880 HCI_CONN_SECURE, 881 HCI_CONN_FIPS, 882 HCI_CONN_STK_ENCRYPT, 883 HCI_CONN_AUTH_INITIATOR, 884 HCI_CONN_DROP, 885 HCI_CONN_PARAM_REMOVAL_PEND, 886 HCI_CONN_NEW_LINK_KEY, 887 HCI_CONN_SCANNING, 888 HCI_CONN_AUTH_FAILURE, 889 }; 890 891 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 892 { 893 struct hci_dev *hdev = conn->hdev; 894 return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 895 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 896 } 897 898 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 899 { 900 struct hci_dev *hdev = conn->hdev; 901 return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 902 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 903 } 904 905 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 906 { 907 struct hci_conn_hash *h = &hdev->conn_hash; 908 list_add_rcu(&c->list, &h->list); 909 switch (c->type) { 910 case ACL_LINK: 911 h->acl_num++; 912 break; 913 case AMP_LINK: 914 h->amp_num++; 915 break; 916 case LE_LINK: 917 h->le_num++; 918 if (c->role == HCI_ROLE_SLAVE) 919 h->le_num_peripheral++; 920 break; 921 case SCO_LINK: 922 case ESCO_LINK: 923 h->sco_num++; 924 break; 925 } 926 } 927 928 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 929 { 930 struct hci_conn_hash *h = &hdev->conn_hash; 931 932 list_del_rcu(&c->list); 933 synchronize_rcu(); 934 935 switch (c->type) { 936 case ACL_LINK: 937 h->acl_num--; 938 break; 939 case AMP_LINK: 940 h->amp_num--; 941 break; 942 case LE_LINK: 943 h->le_num--; 944 if (c->role == HCI_ROLE_SLAVE) 945 h->le_num_peripheral--; 946 break; 947 case SCO_LINK: 948 case ESCO_LINK: 949 h->sco_num--; 950 break; 951 } 952 } 953 954 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 955 { 956 struct hci_conn_hash *h = &hdev->conn_hash; 957 switch (type) { 958 case ACL_LINK: 959 return h->acl_num; 960 case AMP_LINK: 961 return h->amp_num; 962 case LE_LINK: 963 return h->le_num; 964 case SCO_LINK: 965 case ESCO_LINK: 966 return h->sco_num; 967 default: 968 return 0; 969 } 970 } 971 972 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 973 { 974 struct hci_conn_hash *c = &hdev->conn_hash; 975 976 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 977 } 978 979 static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 980 { 981 struct hci_conn_hash *h = &hdev->conn_hash; 982 struct hci_conn *c; 983 __u8 type = INVALID_LINK; 984 985 rcu_read_lock(); 986 987 list_for_each_entry_rcu(c, &h->list, list) { 988 if (c->handle == handle) { 989 type = c->type; 990 break; 991 } 992 } 993 994 rcu_read_unlock(); 995 996 return type; 997 } 998 999 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 1000 __u16 handle) 1001 { 1002 struct hci_conn_hash *h = &hdev->conn_hash; 1003 struct hci_conn *c; 1004 1005 rcu_read_lock(); 1006 1007 list_for_each_entry_rcu(c, &h->list, list) { 1008 if (c->handle == handle) { 1009 rcu_read_unlock(); 1010 return c; 1011 } 1012 } 1013 rcu_read_unlock(); 1014 1015 return NULL; 1016 } 1017 1018 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 1019 __u8 type, bdaddr_t *ba) 1020 { 1021 struct hci_conn_hash *h = &hdev->conn_hash; 1022 struct hci_conn *c; 1023 1024 rcu_read_lock(); 1025 1026 list_for_each_entry_rcu(c, &h->list, list) { 1027 if (c->type == type && !bacmp(&c->dst, ba)) { 1028 rcu_read_unlock(); 1029 return c; 1030 } 1031 } 1032 1033 rcu_read_unlock(); 1034 1035 return NULL; 1036 } 1037 1038 static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 1039 bdaddr_t *ba, 1040 __u8 ba_type) 1041 { 1042 struct hci_conn_hash *h = &hdev->conn_hash; 1043 struct hci_conn *c; 1044 1045 rcu_read_lock(); 1046 1047 list_for_each_entry_rcu(c, &h->list, list) { 1048 if (c->type != LE_LINK) 1049 continue; 1050 1051 if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 1052 rcu_read_unlock(); 1053 return c; 1054 } 1055 } 1056 1057 rcu_read_unlock(); 1058 1059 return NULL; 1060 } 1061 1062 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 1063 __u8 type, __u16 state) 1064 { 1065 struct hci_conn_hash *h = &hdev->conn_hash; 1066 struct hci_conn *c; 1067 1068 rcu_read_lock(); 1069 1070 list_for_each_entry_rcu(c, &h->list, list) { 1071 if (c->type == type && c->state == state) { 1072 rcu_read_unlock(); 1073 return c; 1074 } 1075 } 1076 1077 rcu_read_unlock(); 1078 1079 return NULL; 1080 } 1081 1082 static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 1083 { 1084 struct hci_conn_hash *h = &hdev->conn_hash; 1085 struct hci_conn *c; 1086 1087 rcu_read_lock(); 1088 1089 list_for_each_entry_rcu(c, &h->list, list) { 1090 if (c->type == LE_LINK && c->state == BT_CONNECT && 1091 !test_bit(HCI_CONN_SCANNING, &c->flags)) { 1092 rcu_read_unlock(); 1093 return c; 1094 } 1095 } 1096 1097 rcu_read_unlock(); 1098 1099 return NULL; 1100 } 1101 1102 int hci_disconnect(struct hci_conn *conn, __u8 reason); 1103 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 1104 void hci_sco_setup(struct hci_conn *conn, __u8 status); 1105 1106 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 1107 u8 role); 1108 int hci_conn_del(struct hci_conn *conn); 1109 void hci_conn_hash_flush(struct hci_dev *hdev); 1110 void hci_conn_check_pending(struct hci_dev *hdev); 1111 1112 struct hci_chan *hci_chan_create(struct hci_conn *conn); 1113 void hci_chan_del(struct hci_chan *chan); 1114 void hci_chan_list_flush(struct hci_conn *conn); 1115 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 1116 1117 struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 1118 u8 dst_type, u8 sec_level, 1119 u16 conn_timeout, 1120 enum conn_reasons conn_reason); 1121 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 1122 u8 dst_type, bool dst_resolved, u8 sec_level, 1123 u16 conn_timeout, u8 role, 1124 bdaddr_t *direct_rpa); 1125 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 1126 u8 sec_level, u8 auth_type, 1127 enum conn_reasons conn_reason); 1128 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 1129 __u16 setting, struct bt_codec *codec); 1130 int hci_conn_check_link_mode(struct hci_conn *conn); 1131 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 1132 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 1133 bool initiator); 1134 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 1135 1136 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 1137 1138 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 1139 1140 /* 1141 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 1142 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 1143 * working or anything else. They just guarantee that the object is available 1144 * and can be dereferenced. So you can use its locks, local variables and any 1145 * other constant data. 1146 * Before accessing runtime data, you _must_ lock the object and then check that 1147 * it is still running. As soon as you release the locks, the connection might 1148 * get dropped, though. 1149 * 1150 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 1151 * how long the underlying connection is held. So every channel that runs on the 1152 * hci_conn object calls this to prevent the connection from disappearing. As 1153 * long as you hold a device, you must also guarantee that you have a valid 1154 * reference to the device via hci_conn_get() (or the initial reference from 1155 * hci_conn_add()). 1156 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 1157 * break because nobody cares for that. But this means, we cannot use 1158 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 1159 */ 1160 1161 static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 1162 { 1163 get_device(&conn->dev); 1164 return conn; 1165 } 1166 1167 static inline void hci_conn_put(struct hci_conn *conn) 1168 { 1169 put_device(&conn->dev); 1170 } 1171 1172 static inline void hci_conn_hold(struct hci_conn *conn) 1173 { 1174 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1175 1176 atomic_inc(&conn->refcnt); 1177 cancel_delayed_work(&conn->disc_work); 1178 } 1179 1180 static inline void hci_conn_drop(struct hci_conn *conn) 1181 { 1182 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 1183 1184 if (atomic_dec_and_test(&conn->refcnt)) { 1185 unsigned long timeo; 1186 1187 switch (conn->type) { 1188 case ACL_LINK: 1189 case LE_LINK: 1190 cancel_delayed_work(&conn->idle_work); 1191 if (conn->state == BT_CONNECTED) { 1192 timeo = conn->disc_timeout; 1193 if (!conn->out) 1194 timeo *= 2; 1195 } else { 1196 timeo = 0; 1197 } 1198 break; 1199 1200 case AMP_LINK: 1201 timeo = conn->disc_timeout; 1202 break; 1203 1204 default: 1205 timeo = 0; 1206 break; 1207 } 1208 1209 cancel_delayed_work(&conn->disc_work); 1210 queue_delayed_work(conn->hdev->workqueue, 1211 &conn->disc_work, timeo); 1212 } 1213 } 1214 1215 /* ----- HCI Devices ----- */ 1216 static inline void hci_dev_put(struct hci_dev *d) 1217 { 1218 BT_DBG("%s orig refcnt %d", d->name, 1219 kref_read(&d->dev.kobj.kref)); 1220 1221 put_device(&d->dev); 1222 } 1223 1224 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 1225 { 1226 BT_DBG("%s orig refcnt %d", d->name, 1227 kref_read(&d->dev.kobj.kref)); 1228 1229 get_device(&d->dev); 1230 return d; 1231 } 1232 1233 #define hci_dev_lock(d) mutex_lock(&d->lock) 1234 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 1235 1236 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 1237 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1238 1239 static inline void *hci_get_drvdata(struct hci_dev *hdev) 1240 { 1241 return dev_get_drvdata(&hdev->dev); 1242 } 1243 1244 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1245 { 1246 dev_set_drvdata(&hdev->dev, data); 1247 } 1248 1249 static inline void *hci_get_priv(struct hci_dev *hdev) 1250 { 1251 return (char *)hdev + sizeof(*hdev); 1252 } 1253 1254 struct hci_dev *hci_dev_get(int index); 1255 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 1256 1257 struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); 1258 1259 static inline struct hci_dev *hci_alloc_dev(void) 1260 { 1261 return hci_alloc_dev_priv(0); 1262 } 1263 1264 void hci_free_dev(struct hci_dev *hdev); 1265 int hci_register_dev(struct hci_dev *hdev); 1266 void hci_unregister_dev(struct hci_dev *hdev); 1267 void hci_release_dev(struct hci_dev *hdev); 1268 int hci_suspend_dev(struct hci_dev *hdev); 1269 int hci_resume_dev(struct hci_dev *hdev); 1270 int hci_reset_dev(struct hci_dev *hdev); 1271 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1272 int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 1273 __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 1274 __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 1275 1276 static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) 1277 { 1278 #if IS_ENABLED(CONFIG_BT_MSFTEXT) 1279 hdev->msft_opcode = opcode; 1280 #endif 1281 } 1282 1283 static inline void hci_set_aosp_capable(struct hci_dev *hdev) 1284 { 1285 #if IS_ENABLED(CONFIG_BT_AOSPEXT) 1286 hdev->aosp_capable = true; 1287 #endif 1288 } 1289 1290 int hci_dev_open(__u16 dev); 1291 int hci_dev_close(__u16 dev); 1292 int hci_dev_do_close(struct hci_dev *hdev); 1293 int hci_dev_reset(__u16 dev); 1294 int hci_dev_reset_stat(__u16 dev); 1295 int hci_dev_cmd(unsigned int cmd, void __user *arg); 1296 int hci_get_dev_list(void __user *arg); 1297 int hci_get_dev_info(void __user *arg); 1298 int hci_get_conn_list(void __user *arg); 1299 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 1300 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 1301 int hci_inquiry(void __user *arg); 1302 1303 struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1304 bdaddr_t *bdaddr, u8 type); 1305 struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( 1306 struct list_head *list, bdaddr_t *bdaddr, 1307 u8 type); 1308 struct bdaddr_list_with_flags * 1309 hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1310 u8 type); 1311 int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1312 int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1313 u8 type, u8 *peer_irk, u8 *local_irk); 1314 int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1315 u8 type, u32 flags); 1316 int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1317 int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, 1318 u8 type); 1319 int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, 1320 u8 type); 1321 void hci_bdaddr_list_clear(struct list_head *list); 1322 1323 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 1324 bdaddr_t *addr, u8 addr_type); 1325 struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 1326 bdaddr_t *addr, u8 addr_type); 1327 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 1328 void hci_conn_params_clear_disabled(struct hci_dev *hdev); 1329 1330 struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1331 bdaddr_t *addr, 1332 u8 addr_type); 1333 1334 void hci_uuids_clear(struct hci_dev *hdev); 1335 1336 void hci_link_keys_clear(struct hci_dev *hdev); 1337 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1338 struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 1339 bdaddr_t *bdaddr, u8 *val, u8 type, 1340 u8 pin_len, bool *persistent); 1341 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1342 u8 addr_type, u8 type, u8 authenticated, 1343 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1344 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1345 u8 addr_type, u8 role); 1346 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 1347 void hci_smp_ltks_clear(struct hci_dev *hdev); 1348 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1349 1350 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1351 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1352 u8 addr_type); 1353 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1354 u8 addr_type, u8 val[16], bdaddr_t *rpa); 1355 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1356 bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); 1357 void hci_blocked_keys_clear(struct hci_dev *hdev); 1358 void hci_smp_irks_clear(struct hci_dev *hdev); 1359 1360 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1361 1362 void hci_remote_oob_data_clear(struct hci_dev *hdev); 1363 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 1364 bdaddr_t *bdaddr, u8 bdaddr_type); 1365 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1366 u8 bdaddr_type, u8 *hash192, u8 *rand192, 1367 u8 *hash256, u8 *rand256); 1368 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 1369 u8 bdaddr_type); 1370 1371 void hci_adv_instances_clear(struct hci_dev *hdev); 1372 struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1373 struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1374 int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1375 u16 adv_data_len, u8 *adv_data, 1376 u16 scan_rsp_len, u8 *scan_rsp_data, 1377 u16 timeout, u16 duration, s8 tx_power, 1378 u32 min_interval, u32 max_interval); 1379 int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, 1380 u16 adv_data_len, u8 *adv_data, 1381 u16 scan_rsp_len, u8 *scan_rsp_data); 1382 int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1383 void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1384 u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); 1385 bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); 1386 1387 void hci_adv_monitors_clear(struct hci_dev *hdev); 1388 void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); 1389 int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1390 int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1391 bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor, 1392 int *err); 1393 bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err); 1394 bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err); 1395 bool hci_is_adv_monitoring(struct hci_dev *hdev); 1396 int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); 1397 1398 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 1399 1400 void hci_init_sysfs(struct hci_dev *hdev); 1401 void hci_conn_init_sysfs(struct hci_conn *conn); 1402 void hci_conn_add_sysfs(struct hci_conn *conn); 1403 void hci_conn_del_sysfs(struct hci_conn *conn); 1404 1405 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 1406 1407 /* ----- LMP capabilities ----- */ 1408 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1409 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1410 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1411 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1412 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1413 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1414 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1415 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1416 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1417 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1418 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1419 #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) 1420 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1421 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1422 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1423 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1424 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1425 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1426 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 1427 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 1428 #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 1429 #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 1430 #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 1431 #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 1432 1433 /* ----- Extended LMP capabilities ----- */ 1434 #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) 1435 #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) 1436 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 1437 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1438 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1439 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 1440 1441 /* ----- Host capabilities ----- */ 1442 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1443 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1444 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1445 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1446 1447 #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1448 !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 1449 #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1450 hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1451 #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ 1452 !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) 1453 #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ 1454 !adv->rpa_expired) 1455 1456 #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 1457 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 1458 1459 #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 1460 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 1461 1462 #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 1463 ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 1464 1465 #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) 1466 1467 /* Use LL Privacy based address resolution if supported */ 1468 #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \ 1469 hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY)) 1470 1471 #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \ 1472 (hdev->commands[39] & 0x04)) 1473 1474 /* Use enhanced synchronous connection if command is supported */ 1475 #define enhanced_sco_capable(dev) ((dev)->commands[29] & 0x08) 1476 1477 /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1478 #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1479 ((dev)->commands[37] & 0x40)) 1480 /* Use ext create connection if command is supported */ 1481 #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1482 1483 /* Extended advertising support */ 1484 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 1485 1486 /* ----- HCI protocols ----- */ 1487 #define HCI_PROTO_DEFER 0x01 1488 1489 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 1490 __u8 type, __u8 *flags) 1491 { 1492 switch (type) { 1493 case ACL_LINK: 1494 return l2cap_connect_ind(hdev, bdaddr); 1495 1496 case SCO_LINK: 1497 case ESCO_LINK: 1498 return sco_connect_ind(hdev, bdaddr, flags); 1499 1500 default: 1501 BT_ERR("unknown link type %d", type); 1502 return -EINVAL; 1503 } 1504 } 1505 1506 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 1507 { 1508 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1509 return HCI_ERROR_REMOTE_USER_TERM; 1510 1511 return l2cap_disconn_ind(conn); 1512 } 1513 1514 /* ----- HCI callbacks ----- */ 1515 struct hci_cb { 1516 struct list_head list; 1517 1518 char *name; 1519 1520 void (*connect_cfm) (struct hci_conn *conn, __u8 status); 1521 void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 1522 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1523 __u8 encrypt); 1524 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1525 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1526 }; 1527 1528 static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1529 { 1530 struct hci_cb *cb; 1531 1532 mutex_lock(&hci_cb_list_lock); 1533 list_for_each_entry(cb, &hci_cb_list, list) { 1534 if (cb->connect_cfm) 1535 cb->connect_cfm(conn, status); 1536 } 1537 mutex_unlock(&hci_cb_list_lock); 1538 1539 if (conn->connect_cfm_cb) 1540 conn->connect_cfm_cb(conn, status); 1541 } 1542 1543 static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 1544 { 1545 struct hci_cb *cb; 1546 1547 mutex_lock(&hci_cb_list_lock); 1548 list_for_each_entry(cb, &hci_cb_list, list) { 1549 if (cb->disconn_cfm) 1550 cb->disconn_cfm(conn, reason); 1551 } 1552 mutex_unlock(&hci_cb_list_lock); 1553 1554 if (conn->disconn_cfm_cb) 1555 conn->disconn_cfm_cb(conn, reason); 1556 } 1557 1558 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1559 { 1560 struct hci_cb *cb; 1561 __u8 encrypt; 1562 1563 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1564 return; 1565 1566 encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 1567 1568 mutex_lock(&hci_cb_list_lock); 1569 list_for_each_entry(cb, &hci_cb_list, list) { 1570 if (cb->security_cfm) 1571 cb->security_cfm(conn, status, encrypt); 1572 } 1573 mutex_unlock(&hci_cb_list_lock); 1574 1575 if (conn->security_cfm_cb) 1576 conn->security_cfm_cb(conn, status); 1577 } 1578 1579 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) 1580 { 1581 struct hci_cb *cb; 1582 __u8 encrypt; 1583 1584 if (conn->state == BT_CONFIG) { 1585 if (!status) 1586 conn->state = BT_CONNECTED; 1587 1588 hci_connect_cfm(conn, status); 1589 hci_conn_drop(conn); 1590 return; 1591 } 1592 1593 if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) 1594 encrypt = 0x00; 1595 else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) 1596 encrypt = 0x02; 1597 else 1598 encrypt = 0x01; 1599 1600 if (!status) { 1601 if (conn->sec_level == BT_SECURITY_SDP) 1602 conn->sec_level = BT_SECURITY_LOW; 1603 1604 if (conn->pending_sec_level > conn->sec_level) 1605 conn->sec_level = conn->pending_sec_level; 1606 } 1607 1608 mutex_lock(&hci_cb_list_lock); 1609 list_for_each_entry(cb, &hci_cb_list, list) { 1610 if (cb->security_cfm) 1611 cb->security_cfm(conn, status, encrypt); 1612 } 1613 mutex_unlock(&hci_cb_list_lock); 1614 1615 if (conn->security_cfm_cb) 1616 conn->security_cfm_cb(conn, status); 1617 } 1618 1619 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1620 { 1621 struct hci_cb *cb; 1622 1623 mutex_lock(&hci_cb_list_lock); 1624 list_for_each_entry(cb, &hci_cb_list, list) { 1625 if (cb->key_change_cfm) 1626 cb->key_change_cfm(conn, status); 1627 } 1628 mutex_unlock(&hci_cb_list_lock); 1629 } 1630 1631 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1632 __u8 role) 1633 { 1634 struct hci_cb *cb; 1635 1636 mutex_lock(&hci_cb_list_lock); 1637 list_for_each_entry(cb, &hci_cb_list, list) { 1638 if (cb->role_switch_cfm) 1639 cb->role_switch_cfm(conn, status, role); 1640 } 1641 mutex_unlock(&hci_cb_list_lock); 1642 } 1643 1644 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1645 { 1646 if (addr_type != ADDR_LE_DEV_RANDOM) 1647 return false; 1648 1649 if ((bdaddr->b[5] & 0xc0) == 0x40) 1650 return true; 1651 1652 return false; 1653 } 1654 1655 static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1656 { 1657 if (addr_type == ADDR_LE_DEV_PUBLIC) 1658 return true; 1659 1660 /* Check for Random Static address type */ 1661 if ((addr->b[5] & 0xc0) == 0xc0) 1662 return true; 1663 1664 return false; 1665 } 1666 1667 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1668 bdaddr_t *bdaddr, u8 addr_type) 1669 { 1670 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1671 return NULL; 1672 1673 return hci_find_irk_by_rpa(hdev, bdaddr); 1674 } 1675 1676 static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1677 u16 to_multiplier) 1678 { 1679 u16 max_latency; 1680 1681 if (min > max || min < 6 || max > 3200) 1682 return -EINVAL; 1683 1684 if (to_multiplier < 10 || to_multiplier > 3200) 1685 return -EINVAL; 1686 1687 if (max >= to_multiplier * 8) 1688 return -EINVAL; 1689 1690 max_latency = (to_multiplier * 4 / max) - 1; 1691 if (latency > 499 || latency > max_latency) 1692 return -EINVAL; 1693 1694 return 0; 1695 } 1696 1697 int hci_register_cb(struct hci_cb *hcb); 1698 int hci_unregister_cb(struct hci_cb *hcb); 1699 1700 int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1701 const void *param); 1702 1703 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1704 const void *param); 1705 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1706 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1707 1708 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1709 1710 u32 hci_conn_get_phy(struct hci_conn *conn); 1711 1712 /* ----- HCI Sockets ----- */ 1713 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1714 void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1715 int flag, struct sock *skip_sk); 1716 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1717 void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 1718 void *data, u16 data_len, ktime_t tstamp, 1719 int flag, struct sock *skip_sk); 1720 1721 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1722 1723 #define HCI_MGMT_VAR_LEN BIT(0) 1724 #define HCI_MGMT_NO_HDEV BIT(1) 1725 #define HCI_MGMT_UNTRUSTED BIT(2) 1726 #define HCI_MGMT_UNCONFIGURED BIT(3) 1727 #define HCI_MGMT_HDEV_OPTIONAL BIT(4) 1728 1729 struct hci_mgmt_handler { 1730 int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1731 u16 data_len); 1732 size_t data_len; 1733 unsigned long flags; 1734 }; 1735 1736 struct hci_mgmt_chan { 1737 struct list_head list; 1738 unsigned short channel; 1739 size_t handler_count; 1740 const struct hci_mgmt_handler *handlers; 1741 void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1742 }; 1743 1744 int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1745 void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1746 1747 /* Management interface */ 1748 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1749 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1750 BIT(BDADDR_LE_RANDOM)) 1751 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1752 BIT(BDADDR_LE_PUBLIC) | \ 1753 BIT(BDADDR_LE_RANDOM)) 1754 1755 /* These LE scan and inquiry parameters were chosen according to LE General 1756 * Discovery Procedure specification. 1757 */ 1758 #define DISCOV_LE_SCAN_WIN 0x12 1759 #define DISCOV_LE_SCAN_INT 0x12 1760 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1761 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1762 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1763 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1764 #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 1765 #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ 1766 #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ 1767 1768 #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ 1769 1770 void mgmt_fill_version_info(void *ver); 1771 int mgmt_new_settings(struct hci_dev *hdev); 1772 void mgmt_index_added(struct hci_dev *hdev); 1773 void mgmt_index_removed(struct hci_dev *hdev); 1774 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1775 void mgmt_power_on(struct hci_dev *hdev, int err); 1776 void __mgmt_power_off(struct hci_dev *hdev); 1777 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1778 bool persistent); 1779 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 1780 u8 *name, u8 name_len); 1781 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1782 u8 link_type, u8 addr_type, u8 reason, 1783 bool mgmt_connected); 1784 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1785 u8 link_type, u8 addr_type, u8 status); 1786 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1787 u8 addr_type, u8 status); 1788 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1789 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1790 u8 status); 1791 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1792 u8 status); 1793 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1794 u8 link_type, u8 addr_type, u32 value, 1795 u8 confirm_hint); 1796 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1797 u8 link_type, u8 addr_type, u8 status); 1798 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1799 u8 link_type, u8 addr_type, u8 status); 1800 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1801 u8 link_type, u8 addr_type); 1802 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1803 u8 link_type, u8 addr_type, u8 status); 1804 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1805 u8 link_type, u8 addr_type, u8 status); 1806 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1807 u8 link_type, u8 addr_type, u32 passkey, 1808 u8 entered); 1809 void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1810 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1811 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1812 u8 status); 1813 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1814 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 1815 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1816 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1817 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1818 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 1819 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1820 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1821 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1822 void mgmt_suspending(struct hci_dev *hdev, u8 state); 1823 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, 1824 u8 addr_type); 1825 bool mgmt_powering_down(struct hci_dev *hdev); 1826 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1827 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 1828 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1829 bool persistent); 1830 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1831 u8 bdaddr_type, u8 store_hint, u16 min_interval, 1832 u16 max_interval, u16 latency, u16 timeout); 1833 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1834 bool mgmt_get_connectable(struct hci_dev *hdev); 1835 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1836 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1837 u8 instance); 1838 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1839 u8 instance); 1840 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); 1841 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1842 int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status); 1843 int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status); 1844 1845 u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 1846 u16 to_multiplier); 1847 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1848 __u8 ltk[16], __u8 key_size); 1849 1850 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1851 u8 *bdaddr_type); 1852 1853 #define SCO_AIRMODE_MASK 0x0003 1854 #define SCO_AIRMODE_CVSD 0x0000 1855 #define SCO_AIRMODE_TRANSP 0x0003 1856 1857 #define LOCAL_CODEC_ACL_MASK BIT(0) 1858 #define LOCAL_CODEC_SCO_MASK BIT(1) 1859 1860 #define TRANSPORT_TYPE_MAX 0x04 1861 1862 #endif /* __HCI_CORE_H */ 1863