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 <net/bluetooth/hci.h> 29 30 /* HCI priority */ 31 #define HCI_PRIO_MAX 7 32 33 /* HCI Core structures */ 34 struct inquiry_data { 35 bdaddr_t bdaddr; 36 __u8 pscan_rep_mode; 37 __u8 pscan_period_mode; 38 __u8 pscan_mode; 39 __u8 dev_class[3]; 40 __le16 clock_offset; 41 __s8 rssi; 42 __u8 ssp_mode; 43 }; 44 45 struct inquiry_entry { 46 struct list_head all; /* inq_cache.all */ 47 struct list_head list; /* unknown or resolve */ 48 enum { 49 NAME_NOT_KNOWN, 50 NAME_NEEDED, 51 NAME_PENDING, 52 NAME_KNOWN, 53 } name_state; 54 __u32 timestamp; 55 struct inquiry_data data; 56 }; 57 58 struct discovery_state { 59 int type; 60 enum { 61 DISCOVERY_STOPPED, 62 DISCOVERY_STARTING, 63 DISCOVERY_FINDING, 64 DISCOVERY_RESOLVING, 65 DISCOVERY_STOPPING, 66 } state; 67 struct list_head all; /* All devices found during inquiry */ 68 struct list_head unknown; /* Name state not known */ 69 struct list_head resolve; /* Name needs to be resolved */ 70 __u32 timestamp; 71 bdaddr_t last_adv_addr; 72 u8 last_adv_addr_type; 73 s8 last_adv_rssi; 74 u8 last_adv_data[HCI_MAX_AD_LENGTH]; 75 u8 last_adv_data_len; 76 }; 77 78 struct hci_conn_hash { 79 struct list_head list; 80 unsigned int acl_num; 81 unsigned int amp_num; 82 unsigned int sco_num; 83 unsigned int le_num; 84 }; 85 86 struct bdaddr_list { 87 struct list_head list; 88 bdaddr_t bdaddr; 89 u8 bdaddr_type; 90 }; 91 92 struct bt_uuid { 93 struct list_head list; 94 u8 uuid[16]; 95 u8 size; 96 u8 svc_hint; 97 }; 98 99 struct smp_csrk { 100 bdaddr_t bdaddr; 101 u8 bdaddr_type; 102 u8 master; 103 u8 val[16]; 104 }; 105 106 struct smp_ltk { 107 struct list_head list; 108 bdaddr_t bdaddr; 109 u8 bdaddr_type; 110 u8 authenticated; 111 u8 type; 112 u8 enc_size; 113 __le16 ediv; 114 __le64 rand; 115 u8 val[16]; 116 }; 117 118 struct smp_irk { 119 struct list_head list; 120 bdaddr_t rpa; 121 bdaddr_t bdaddr; 122 u8 addr_type; 123 u8 val[16]; 124 }; 125 126 struct link_key { 127 struct list_head list; 128 bdaddr_t bdaddr; 129 u8 type; 130 u8 val[HCI_LINK_KEY_SIZE]; 131 u8 pin_len; 132 }; 133 134 struct oob_data { 135 struct list_head list; 136 bdaddr_t bdaddr; 137 u8 hash192[16]; 138 u8 randomizer192[16]; 139 u8 hash256[16]; 140 u8 randomizer256[16]; 141 }; 142 143 #define HCI_MAX_SHORT_NAME_LENGTH 10 144 145 /* Default LE RPA expiry time, 15 minutes */ 146 #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 147 148 /* Default min/max age of connection information (1s/3s) */ 149 #define DEFAULT_CONN_INFO_MIN_AGE 1000 150 #define DEFAULT_CONN_INFO_MAX_AGE 3000 151 152 struct amp_assoc { 153 __u16 len; 154 __u16 offset; 155 __u16 rem_len; 156 __u16 len_so_far; 157 __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 158 }; 159 160 #define HCI_MAX_PAGES 3 161 162 #define NUM_REASSEMBLY 4 163 struct hci_dev { 164 struct list_head list; 165 struct mutex lock; 166 167 char name[8]; 168 unsigned long flags; 169 __u16 id; 170 __u8 bus; 171 __u8 dev_type; 172 bdaddr_t bdaddr; 173 bdaddr_t random_addr; 174 bdaddr_t static_addr; 175 __u8 adv_addr_type; 176 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 177 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 178 __u8 eir[HCI_MAX_EIR_LENGTH]; 179 __u8 dev_class[3]; 180 __u8 major_class; 181 __u8 minor_class; 182 __u8 max_page; 183 __u8 features[HCI_MAX_PAGES][8]; 184 __u8 le_features[8]; 185 __u8 le_white_list_size; 186 __u8 le_states[8]; 187 __u8 commands[64]; 188 __u8 hci_ver; 189 __u16 hci_rev; 190 __u8 lmp_ver; 191 __u16 manufacturer; 192 __u16 lmp_subver; 193 __u16 voice_setting; 194 __u8 num_iac; 195 __u8 io_capability; 196 __s8 inq_tx_power; 197 __u16 page_scan_interval; 198 __u16 page_scan_window; 199 __u8 page_scan_type; 200 __u8 le_adv_channel_map; 201 __u8 le_scan_type; 202 __u16 le_scan_interval; 203 __u16 le_scan_window; 204 __u16 le_conn_min_interval; 205 __u16 le_conn_max_interval; 206 __u16 discov_interleaved_timeout; 207 __u16 conn_info_min_age; 208 __u16 conn_info_max_age; 209 __u8 ssp_debug_mode; 210 211 __u16 devid_source; 212 __u16 devid_vendor; 213 __u16 devid_product; 214 __u16 devid_version; 215 216 __u16 pkt_type; 217 __u16 esco_type; 218 __u16 link_policy; 219 __u16 link_mode; 220 221 __u32 idle_timeout; 222 __u16 sniff_min_interval; 223 __u16 sniff_max_interval; 224 225 __u8 amp_status; 226 __u32 amp_total_bw; 227 __u32 amp_max_bw; 228 __u32 amp_min_latency; 229 __u32 amp_max_pdu; 230 __u8 amp_type; 231 __u16 amp_pal_cap; 232 __u16 amp_assoc_size; 233 __u32 amp_max_flush_to; 234 __u32 amp_be_flush_to; 235 236 struct amp_assoc loc_assoc; 237 238 __u8 flow_ctl_mode; 239 240 unsigned int auto_accept_delay; 241 242 unsigned long quirks; 243 244 atomic_t cmd_cnt; 245 unsigned int acl_cnt; 246 unsigned int sco_cnt; 247 unsigned int le_cnt; 248 249 unsigned int acl_mtu; 250 unsigned int sco_mtu; 251 unsigned int le_mtu; 252 unsigned int acl_pkts; 253 unsigned int sco_pkts; 254 unsigned int le_pkts; 255 256 __u16 block_len; 257 __u16 block_mtu; 258 __u16 num_blocks; 259 __u16 block_cnt; 260 261 unsigned long acl_last_tx; 262 unsigned long sco_last_tx; 263 unsigned long le_last_tx; 264 265 struct workqueue_struct *workqueue; 266 struct workqueue_struct *req_workqueue; 267 268 struct work_struct power_on; 269 struct delayed_work power_off; 270 271 __u16 discov_timeout; 272 struct delayed_work discov_off; 273 274 struct delayed_work service_cache; 275 276 struct timer_list cmd_timer; 277 278 struct work_struct rx_work; 279 struct work_struct cmd_work; 280 struct work_struct tx_work; 281 282 struct sk_buff_head rx_q; 283 struct sk_buff_head raw_q; 284 struct sk_buff_head cmd_q; 285 286 struct sk_buff *recv_evt; 287 struct sk_buff *sent_cmd; 288 struct sk_buff *reassembly[NUM_REASSEMBLY]; 289 290 struct mutex req_lock; 291 wait_queue_head_t req_wait_q; 292 __u32 req_status; 293 __u32 req_result; 294 295 struct crypto_blkcipher *tfm_aes; 296 297 struct discovery_state discovery; 298 struct hci_conn_hash conn_hash; 299 300 struct list_head mgmt_pending; 301 struct list_head blacklist; 302 struct list_head uuids; 303 struct list_head link_keys; 304 struct list_head long_term_keys; 305 struct list_head identity_resolving_keys; 306 struct list_head remote_oob_data; 307 struct list_head le_white_list; 308 struct list_head le_conn_params; 309 struct list_head pend_le_conns; 310 311 struct hci_dev_stats stat; 312 313 atomic_t promisc; 314 315 struct dentry *debugfs; 316 317 struct device dev; 318 319 struct rfkill *rfkill; 320 321 unsigned long dev_flags; 322 323 struct delayed_work le_scan_disable; 324 325 __s8 adv_tx_power; 326 __u8 adv_data[HCI_MAX_AD_LENGTH]; 327 __u8 adv_data_len; 328 __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 329 __u8 scan_rsp_data_len; 330 331 __u8 irk[16]; 332 __u32 rpa_timeout; 333 struct delayed_work rpa_expired; 334 bdaddr_t rpa; 335 336 int (*open)(struct hci_dev *hdev); 337 int (*close)(struct hci_dev *hdev); 338 int (*flush)(struct hci_dev *hdev); 339 int (*setup)(struct hci_dev *hdev); 340 int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 341 void (*notify)(struct hci_dev *hdev, unsigned int evt); 342 }; 343 344 #define HCI_PHY_HANDLE(handle) (handle & 0xff) 345 346 struct hci_conn { 347 struct list_head list; 348 349 atomic_t refcnt; 350 351 bdaddr_t dst; 352 __u8 dst_type; 353 bdaddr_t src; 354 __u8 src_type; 355 bdaddr_t init_addr; 356 __u8 init_addr_type; 357 bdaddr_t resp_addr; 358 __u8 resp_addr_type; 359 __u16 handle; 360 __u16 state; 361 __u8 mode; 362 __u8 type; 363 bool out; 364 __u8 attempt; 365 __u8 dev_class[3]; 366 __u8 features[HCI_MAX_PAGES][8]; 367 __u16 pkt_type; 368 __u16 link_policy; 369 __u32 link_mode; 370 __u8 key_type; 371 __u8 auth_type; 372 __u8 sec_level; 373 __u8 pending_sec_level; 374 __u8 pin_length; 375 __u8 enc_key_size; 376 __u8 io_capability; 377 __u32 passkey_notify; 378 __u8 passkey_entered; 379 __u16 disc_timeout; 380 __u16 setting; 381 __u16 le_conn_min_interval; 382 __u16 le_conn_max_interval; 383 __s8 rssi; 384 __s8 tx_power; 385 __s8 max_tx_power; 386 unsigned long flags; 387 388 unsigned long conn_info_timestamp; 389 390 __u8 remote_cap; 391 __u8 remote_auth; 392 __u8 remote_id; 393 bool flush_key; 394 395 unsigned int sent; 396 397 struct sk_buff_head data_q; 398 struct list_head chan_list; 399 400 struct delayed_work disc_work; 401 struct delayed_work auto_accept_work; 402 struct delayed_work idle_work; 403 struct delayed_work le_conn_timeout; 404 405 struct device dev; 406 407 struct hci_dev *hdev; 408 void *l2cap_data; 409 void *sco_data; 410 void *smp_conn; 411 struct amp_mgr *amp_mgr; 412 413 struct hci_conn *link; 414 415 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 416 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 417 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 418 }; 419 420 struct hci_chan { 421 struct list_head list; 422 __u16 handle; 423 struct hci_conn *conn; 424 struct sk_buff_head data_q; 425 unsigned int sent; 426 __u8 state; 427 }; 428 429 struct hci_conn_params { 430 struct list_head list; 431 432 bdaddr_t addr; 433 u8 addr_type; 434 435 u16 conn_min_interval; 436 u16 conn_max_interval; 437 438 enum { 439 HCI_AUTO_CONN_DISABLED, 440 HCI_AUTO_CONN_ALWAYS, 441 HCI_AUTO_CONN_LINK_LOSS, 442 } auto_connect; 443 }; 444 445 extern struct list_head hci_dev_list; 446 extern struct list_head hci_cb_list; 447 extern rwlock_t hci_dev_list_lock; 448 extern rwlock_t hci_cb_list_lock; 449 450 /* ----- HCI interface to upper protocols ----- */ 451 int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 452 void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); 453 int l2cap_disconn_ind(struct hci_conn *hcon); 454 void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); 455 int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); 456 int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 457 458 int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 459 void sco_connect_cfm(struct hci_conn *hcon, __u8 status); 460 void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); 461 int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 462 463 /* ----- Inquiry cache ----- */ 464 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 465 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 466 467 static inline void discovery_init(struct hci_dev *hdev) 468 { 469 hdev->discovery.state = DISCOVERY_STOPPED; 470 INIT_LIST_HEAD(&hdev->discovery.all); 471 INIT_LIST_HEAD(&hdev->discovery.unknown); 472 INIT_LIST_HEAD(&hdev->discovery.resolve); 473 } 474 475 bool hci_discovery_active(struct hci_dev *hdev); 476 477 void hci_discovery_set_state(struct hci_dev *hdev, int state); 478 479 static inline int inquiry_cache_empty(struct hci_dev *hdev) 480 { 481 return list_empty(&hdev->discovery.all); 482 } 483 484 static inline long inquiry_cache_age(struct hci_dev *hdev) 485 { 486 struct discovery_state *c = &hdev->discovery; 487 return jiffies - c->timestamp; 488 } 489 490 static inline long inquiry_entry_age(struct inquiry_entry *e) 491 { 492 return jiffies - e->timestamp; 493 } 494 495 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 496 bdaddr_t *bdaddr); 497 struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 498 bdaddr_t *bdaddr); 499 struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 500 bdaddr_t *bdaddr, 501 int state); 502 void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 503 struct inquiry_entry *ie); 504 bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 505 bool name_known, bool *ssp); 506 void hci_inquiry_cache_flush(struct hci_dev *hdev); 507 508 /* ----- HCI Connections ----- */ 509 enum { 510 HCI_CONN_AUTH_PEND, 511 HCI_CONN_REAUTH_PEND, 512 HCI_CONN_ENCRYPT_PEND, 513 HCI_CONN_RSWITCH_PEND, 514 HCI_CONN_MODE_CHANGE_PEND, 515 HCI_CONN_SCO_SETUP_PEND, 516 HCI_CONN_LE_SMP_PEND, 517 HCI_CONN_MGMT_CONNECTED, 518 HCI_CONN_SSP_ENABLED, 519 HCI_CONN_SC_ENABLED, 520 HCI_CONN_AES_CCM, 521 HCI_CONN_POWER_SAVE, 522 HCI_CONN_REMOTE_OOB, 523 HCI_CONN_6LOWPAN, 524 }; 525 526 static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 527 { 528 struct hci_dev *hdev = conn->hdev; 529 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && 530 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 531 } 532 533 static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 534 { 535 struct hci_dev *hdev = conn->hdev; 536 return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) && 537 test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 538 } 539 540 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 541 { 542 struct hci_conn_hash *h = &hdev->conn_hash; 543 list_add_rcu(&c->list, &h->list); 544 switch (c->type) { 545 case ACL_LINK: 546 h->acl_num++; 547 break; 548 case AMP_LINK: 549 h->amp_num++; 550 break; 551 case LE_LINK: 552 h->le_num++; 553 break; 554 case SCO_LINK: 555 case ESCO_LINK: 556 h->sco_num++; 557 break; 558 } 559 } 560 561 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 562 { 563 struct hci_conn_hash *h = &hdev->conn_hash; 564 565 list_del_rcu(&c->list); 566 synchronize_rcu(); 567 568 switch (c->type) { 569 case ACL_LINK: 570 h->acl_num--; 571 break; 572 case AMP_LINK: 573 h->amp_num--; 574 break; 575 case LE_LINK: 576 h->le_num--; 577 break; 578 case SCO_LINK: 579 case ESCO_LINK: 580 h->sco_num--; 581 break; 582 } 583 } 584 585 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 586 { 587 struct hci_conn_hash *h = &hdev->conn_hash; 588 switch (type) { 589 case ACL_LINK: 590 return h->acl_num; 591 case AMP_LINK: 592 return h->amp_num; 593 case LE_LINK: 594 return h->le_num; 595 case SCO_LINK: 596 case ESCO_LINK: 597 return h->sco_num; 598 default: 599 return 0; 600 } 601 } 602 603 static inline unsigned int hci_conn_count(struct hci_dev *hdev) 604 { 605 struct hci_conn_hash *c = &hdev->conn_hash; 606 607 return c->acl_num + c->amp_num + c->sco_num + c->le_num; 608 } 609 610 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 611 __u16 handle) 612 { 613 struct hci_conn_hash *h = &hdev->conn_hash; 614 struct hci_conn *c; 615 616 rcu_read_lock(); 617 618 list_for_each_entry_rcu(c, &h->list, list) { 619 if (c->handle == handle) { 620 rcu_read_unlock(); 621 return c; 622 } 623 } 624 rcu_read_unlock(); 625 626 return NULL; 627 } 628 629 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 630 __u8 type, bdaddr_t *ba) 631 { 632 struct hci_conn_hash *h = &hdev->conn_hash; 633 struct hci_conn *c; 634 635 rcu_read_lock(); 636 637 list_for_each_entry_rcu(c, &h->list, list) { 638 if (c->type == type && !bacmp(&c->dst, ba)) { 639 rcu_read_unlock(); 640 return c; 641 } 642 } 643 644 rcu_read_unlock(); 645 646 return NULL; 647 } 648 649 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 650 __u8 type, __u16 state) 651 { 652 struct hci_conn_hash *h = &hdev->conn_hash; 653 struct hci_conn *c; 654 655 rcu_read_lock(); 656 657 list_for_each_entry_rcu(c, &h->list, list) { 658 if (c->type == type && c->state == state) { 659 rcu_read_unlock(); 660 return c; 661 } 662 } 663 664 rcu_read_unlock(); 665 666 return NULL; 667 } 668 669 void hci_disconnect(struct hci_conn *conn, __u8 reason); 670 bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 671 void hci_sco_setup(struct hci_conn *conn, __u8 status); 672 673 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 674 int hci_conn_del(struct hci_conn *conn); 675 void hci_conn_hash_flush(struct hci_dev *hdev); 676 void hci_conn_check_pending(struct hci_dev *hdev); 677 678 struct hci_chan *hci_chan_create(struct hci_conn *conn); 679 void hci_chan_del(struct hci_chan *chan); 680 void hci_chan_list_flush(struct hci_conn *conn); 681 struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 682 683 struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 684 u8 dst_type, u8 sec_level, u8 auth_type); 685 struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 686 u8 sec_level, u8 auth_type); 687 struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 688 __u16 setting); 689 int hci_conn_check_link_mode(struct hci_conn *conn); 690 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 691 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 692 int hci_conn_change_link_key(struct hci_conn *conn); 693 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 694 695 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 696 697 void hci_le_conn_failed(struct hci_conn *conn, u8 status); 698 699 /* 700 * hci_conn_get() and hci_conn_put() are used to control the life-time of an 701 * "hci_conn" object. They do not guarantee that the hci_conn object is running, 702 * working or anything else. They just guarantee that the object is available 703 * and can be dereferenced. So you can use its locks, local variables and any 704 * other constant data. 705 * Before accessing runtime data, you _must_ lock the object and then check that 706 * it is still running. As soon as you release the locks, the connection might 707 * get dropped, though. 708 * 709 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 710 * how long the underlying connection is held. So every channel that runs on the 711 * hci_conn object calls this to prevent the connection from disappearing. As 712 * long as you hold a device, you must also guarantee that you have a valid 713 * reference to the device via hci_conn_get() (or the initial reference from 714 * hci_conn_add()). 715 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 716 * break because nobody cares for that. But this means, we cannot use 717 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 718 */ 719 720 static inline void hci_conn_get(struct hci_conn *conn) 721 { 722 get_device(&conn->dev); 723 } 724 725 static inline void hci_conn_put(struct hci_conn *conn) 726 { 727 put_device(&conn->dev); 728 } 729 730 static inline void hci_conn_hold(struct hci_conn *conn) 731 { 732 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 733 734 atomic_inc(&conn->refcnt); 735 cancel_delayed_work(&conn->disc_work); 736 } 737 738 static inline void hci_conn_drop(struct hci_conn *conn) 739 { 740 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 741 742 if (atomic_dec_and_test(&conn->refcnt)) { 743 unsigned long timeo; 744 745 switch (conn->type) { 746 case ACL_LINK: 747 case LE_LINK: 748 cancel_delayed_work(&conn->idle_work); 749 if (conn->state == BT_CONNECTED) { 750 timeo = conn->disc_timeout; 751 if (!conn->out) 752 timeo *= 2; 753 } else { 754 timeo = msecs_to_jiffies(10); 755 } 756 break; 757 758 case AMP_LINK: 759 timeo = conn->disc_timeout; 760 break; 761 762 default: 763 timeo = msecs_to_jiffies(10); 764 break; 765 } 766 767 cancel_delayed_work(&conn->disc_work); 768 queue_delayed_work(conn->hdev->workqueue, 769 &conn->disc_work, timeo); 770 } 771 } 772 773 /* ----- HCI Devices ----- */ 774 static inline void hci_dev_put(struct hci_dev *d) 775 { 776 BT_DBG("%s orig refcnt %d", d->name, 777 atomic_read(&d->dev.kobj.kref.refcount)); 778 779 put_device(&d->dev); 780 } 781 782 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 783 { 784 BT_DBG("%s orig refcnt %d", d->name, 785 atomic_read(&d->dev.kobj.kref.refcount)); 786 787 get_device(&d->dev); 788 return d; 789 } 790 791 #define hci_dev_lock(d) mutex_lock(&d->lock) 792 #define hci_dev_unlock(d) mutex_unlock(&d->lock) 793 794 #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 795 #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 796 797 static inline void *hci_get_drvdata(struct hci_dev *hdev) 798 { 799 return dev_get_drvdata(&hdev->dev); 800 } 801 802 static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 803 { 804 dev_set_drvdata(&hdev->dev, data); 805 } 806 807 struct hci_dev *hci_dev_get(int index); 808 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); 809 810 struct hci_dev *hci_alloc_dev(void); 811 void hci_free_dev(struct hci_dev *hdev); 812 int hci_register_dev(struct hci_dev *hdev); 813 void hci_unregister_dev(struct hci_dev *hdev); 814 int hci_suspend_dev(struct hci_dev *hdev); 815 int hci_resume_dev(struct hci_dev *hdev); 816 int hci_dev_open(__u16 dev); 817 int hci_dev_close(__u16 dev); 818 int hci_dev_reset(__u16 dev); 819 int hci_dev_reset_stat(__u16 dev); 820 int hci_dev_cmd(unsigned int cmd, void __user *arg); 821 int hci_get_dev_list(void __user *arg); 822 int hci_get_dev_info(void __user *arg); 823 int hci_get_conn_list(void __user *arg); 824 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 825 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 826 int hci_inquiry(void __user *arg); 827 828 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, 829 bdaddr_t *bdaddr, u8 type); 830 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 831 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 832 833 struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev, 834 bdaddr_t *bdaddr, u8 type); 835 void hci_white_list_clear(struct hci_dev *hdev); 836 int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 837 int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 838 839 struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 840 bdaddr_t *addr, u8 addr_type); 841 int hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, 842 u8 auto_connect, u16 conn_min_interval, 843 u16 conn_max_interval); 844 void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 845 void hci_conn_params_clear(struct hci_dev *hdev); 846 847 struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev, 848 bdaddr_t *addr, u8 addr_type); 849 void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 850 void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 851 void hci_pend_le_conns_clear(struct hci_dev *hdev); 852 853 void hci_update_background_scan(struct hci_dev *hdev); 854 855 void hci_uuids_clear(struct hci_dev *hdev); 856 857 void hci_link_keys_clear(struct hci_dev *hdev); 858 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 859 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 860 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); 861 struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, 862 bool master); 863 struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 864 u8 addr_type, u8 type, u8 authenticated, 865 u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 866 struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 867 u8 addr_type, bool master); 868 int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 869 void hci_smp_ltks_clear(struct hci_dev *hdev); 870 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 871 872 struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 873 struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 874 u8 addr_type); 875 struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 876 u8 addr_type, u8 val[16], bdaddr_t *rpa); 877 void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 878 void hci_smp_irks_clear(struct hci_dev *hdev); 879 880 void hci_remote_oob_data_clear(struct hci_dev *hdev); 881 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 882 bdaddr_t *bdaddr); 883 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 884 u8 *hash, u8 *randomizer); 885 int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 886 u8 *hash192, u8 *randomizer192, 887 u8 *hash256, u8 *randomizer256); 888 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 889 890 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 891 892 int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 893 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 894 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 895 896 void hci_init_sysfs(struct hci_dev *hdev); 897 void hci_conn_init_sysfs(struct hci_conn *conn); 898 void hci_conn_add_sysfs(struct hci_conn *conn); 899 void hci_conn_del_sysfs(struct hci_conn *conn); 900 901 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 902 903 /* ----- LMP capabilities ----- */ 904 #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 905 #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 906 #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 907 #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 908 #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 909 #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 910 #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 911 #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 912 #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 913 #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 914 #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 915 #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 916 #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 917 #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 918 #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 919 #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 920 #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 921 #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 922 #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 923 924 /* ----- Extended LMP capabilities ----- */ 925 #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) 926 #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) 927 #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 928 #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 929 #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 930 #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 931 932 /* ----- Host capabilities ----- */ 933 #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 934 #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 935 #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 936 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 937 938 /* ----- HCI protocols ----- */ 939 #define HCI_PROTO_DEFER 0x01 940 941 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 942 __u8 type, __u8 *flags) 943 { 944 switch (type) { 945 case ACL_LINK: 946 return l2cap_connect_ind(hdev, bdaddr); 947 948 case SCO_LINK: 949 case ESCO_LINK: 950 return sco_connect_ind(hdev, bdaddr, flags); 951 952 default: 953 BT_ERR("unknown link type %d", type); 954 return -EINVAL; 955 } 956 } 957 958 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 959 { 960 switch (conn->type) { 961 case ACL_LINK: 962 case LE_LINK: 963 l2cap_connect_cfm(conn, status); 964 break; 965 966 case SCO_LINK: 967 case ESCO_LINK: 968 sco_connect_cfm(conn, status); 969 break; 970 971 default: 972 BT_ERR("unknown link type %d", conn->type); 973 break; 974 } 975 976 if (conn->connect_cfm_cb) 977 conn->connect_cfm_cb(conn, status); 978 } 979 980 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 981 { 982 if (conn->type != ACL_LINK && conn->type != LE_LINK) 983 return HCI_ERROR_REMOTE_USER_TERM; 984 985 return l2cap_disconn_ind(conn); 986 } 987 988 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 989 { 990 switch (conn->type) { 991 case ACL_LINK: 992 case LE_LINK: 993 l2cap_disconn_cfm(conn, reason); 994 break; 995 996 case SCO_LINK: 997 case ESCO_LINK: 998 sco_disconn_cfm(conn, reason); 999 break; 1000 1001 /* L2CAP would be handled for BREDR chan */ 1002 case AMP_LINK: 1003 break; 1004 1005 default: 1006 BT_ERR("unknown link type %d", conn->type); 1007 break; 1008 } 1009 1010 if (conn->disconn_cfm_cb) 1011 conn->disconn_cfm_cb(conn, reason); 1012 } 1013 1014 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 1015 { 1016 __u8 encrypt; 1017 1018 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1019 return; 1020 1021 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1022 return; 1023 1024 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 1025 l2cap_security_cfm(conn, status, encrypt); 1026 1027 if (conn->security_cfm_cb) 1028 conn->security_cfm_cb(conn, status); 1029 } 1030 1031 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 1032 __u8 encrypt) 1033 { 1034 if (conn->type != ACL_LINK && conn->type != LE_LINK) 1035 return; 1036 1037 l2cap_security_cfm(conn, status, encrypt); 1038 1039 if (conn->security_cfm_cb) 1040 conn->security_cfm_cb(conn, status); 1041 } 1042 1043 /* ----- HCI callbacks ----- */ 1044 struct hci_cb { 1045 struct list_head list; 1046 1047 char *name; 1048 1049 void (*security_cfm) (struct hci_conn *conn, __u8 status, 1050 __u8 encrypt); 1051 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 1052 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 1053 }; 1054 1055 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 1056 { 1057 struct hci_cb *cb; 1058 __u8 encrypt; 1059 1060 hci_proto_auth_cfm(conn, status); 1061 1062 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 1063 return; 1064 1065 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 1066 1067 read_lock(&hci_cb_list_lock); 1068 list_for_each_entry(cb, &hci_cb_list, list) { 1069 if (cb->security_cfm) 1070 cb->security_cfm(conn, status, encrypt); 1071 } 1072 read_unlock(&hci_cb_list_lock); 1073 } 1074 1075 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 1076 __u8 encrypt) 1077 { 1078 struct hci_cb *cb; 1079 1080 if (conn->sec_level == BT_SECURITY_SDP) 1081 conn->sec_level = BT_SECURITY_LOW; 1082 1083 if (conn->pending_sec_level > conn->sec_level) 1084 conn->sec_level = conn->pending_sec_level; 1085 1086 hci_proto_encrypt_cfm(conn, status, encrypt); 1087 1088 read_lock(&hci_cb_list_lock); 1089 list_for_each_entry(cb, &hci_cb_list, list) { 1090 if (cb->security_cfm) 1091 cb->security_cfm(conn, status, encrypt); 1092 } 1093 read_unlock(&hci_cb_list_lock); 1094 } 1095 1096 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 1097 { 1098 struct hci_cb *cb; 1099 1100 read_lock(&hci_cb_list_lock); 1101 list_for_each_entry(cb, &hci_cb_list, list) { 1102 if (cb->key_change_cfm) 1103 cb->key_change_cfm(conn, status); 1104 } 1105 read_unlock(&hci_cb_list_lock); 1106 } 1107 1108 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 1109 __u8 role) 1110 { 1111 struct hci_cb *cb; 1112 1113 read_lock(&hci_cb_list_lock); 1114 list_for_each_entry(cb, &hci_cb_list, list) { 1115 if (cb->role_switch_cfm) 1116 cb->role_switch_cfm(conn, status, role); 1117 } 1118 read_unlock(&hci_cb_list_lock); 1119 } 1120 1121 static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) 1122 { 1123 size_t parsed = 0; 1124 1125 if (data_len < 2) 1126 return false; 1127 1128 while (parsed < data_len - 1) { 1129 u8 field_len = data[0]; 1130 1131 if (field_len == 0) 1132 break; 1133 1134 parsed += field_len + 1; 1135 1136 if (parsed > data_len) 1137 break; 1138 1139 if (data[1] == type) 1140 return true; 1141 1142 data += field_len + 1; 1143 } 1144 1145 return false; 1146 } 1147 1148 static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1149 { 1150 if (addr_type != 0x01) 1151 return false; 1152 1153 if ((bdaddr->b[5] & 0xc0) == 0x40) 1154 return true; 1155 1156 return false; 1157 } 1158 1159 static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 1160 bdaddr_t *bdaddr, u8 addr_type) 1161 { 1162 if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 1163 return NULL; 1164 1165 return hci_find_irk_by_rpa(hdev, bdaddr); 1166 } 1167 1168 int hci_register_cb(struct hci_cb *hcb); 1169 int hci_unregister_cb(struct hci_cb *hcb); 1170 1171 struct hci_request { 1172 struct hci_dev *hdev; 1173 struct sk_buff_head cmd_q; 1174 1175 /* If something goes wrong when building the HCI request, the error 1176 * value is stored in this field. 1177 */ 1178 int err; 1179 }; 1180 1181 void hci_req_init(struct hci_request *req, struct hci_dev *hdev); 1182 int hci_req_run(struct hci_request *req, hci_req_complete_t complete); 1183 void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, 1184 const void *param); 1185 void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, 1186 const void *param, u8 event); 1187 void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); 1188 1189 void hci_req_add_le_scan_disable(struct hci_request *req); 1190 void hci_req_add_le_passive_scan(struct hci_request *req); 1191 1192 struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1193 const void *param, u32 timeout); 1194 struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 1195 const void *param, u8 event, u32 timeout); 1196 1197 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 1198 const void *param); 1199 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 1200 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 1201 1202 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 1203 1204 /* ----- HCI Sockets ----- */ 1205 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1206 void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); 1207 void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 1208 1209 void hci_sock_dev_event(struct hci_dev *hdev, int event); 1210 1211 /* Management interface */ 1212 #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1213 #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1214 BIT(BDADDR_LE_RANDOM)) 1215 #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1216 BIT(BDADDR_LE_PUBLIC) | \ 1217 BIT(BDADDR_LE_RANDOM)) 1218 1219 /* These LE scan and inquiry parameters were chosen according to LE General 1220 * Discovery Procedure specification. 1221 */ 1222 #define DISCOV_LE_SCAN_WIN 0x12 1223 #define DISCOV_LE_SCAN_INT 0x12 1224 #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1225 #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 1226 #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 1227 #define DISCOV_BREDR_INQUIRY_LEN 0x08 1228 1229 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 1230 void mgmt_index_added(struct hci_dev *hdev); 1231 void mgmt_index_removed(struct hci_dev *hdev); 1232 void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1233 int mgmt_powered(struct hci_dev *hdev, u8 powered); 1234 void mgmt_discoverable_timeout(struct hci_dev *hdev); 1235 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); 1236 void mgmt_connectable(struct hci_dev *hdev, u8 connectable); 1237 void mgmt_advertising(struct hci_dev *hdev, u8 advertising); 1238 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); 1239 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1240 bool persistent); 1241 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1242 u8 addr_type, u32 flags, u8 *name, u8 name_len, 1243 u8 *dev_class); 1244 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1245 u8 link_type, u8 addr_type, u8 reason, 1246 bool mgmt_connected); 1247 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 1248 u8 link_type, u8 addr_type, u8 status); 1249 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1250 u8 addr_type, u8 status); 1251 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1252 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1253 u8 status); 1254 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1255 u8 status); 1256 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1257 u8 link_type, u8 addr_type, u32 value, 1258 u8 confirm_hint); 1259 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1260 u8 link_type, u8 addr_type, u8 status); 1261 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1262 u8 link_type, u8 addr_type, u8 status); 1263 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1264 u8 link_type, u8 addr_type); 1265 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1266 u8 link_type, u8 addr_type, u8 status); 1267 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1268 u8 link_type, u8 addr_type, u8 status); 1269 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 1270 u8 link_type, u8 addr_type, u32 passkey, 1271 u8 entered); 1272 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1273 u8 addr_type, u8 status); 1274 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 1275 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1276 void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1277 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 1278 u8 status); 1279 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1280 void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192, 1281 u8 *randomizer192, u8 *hash256, 1282 u8 *randomizer256, u8 status); 1283 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1284 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, 1285 u8 ssp, u8 *eir, u16 eir_len, u8 *scan_rsp, 1286 u8 scan_rsp_len); 1287 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1288 u8 addr_type, s8 rssi, u8 *name, u8 name_len); 1289 void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 1290 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1291 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1292 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1293 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk); 1294 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 1295 bool persistent); 1296 void mgmt_reenable_advertising(struct hci_dev *hdev); 1297 void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1298 1299 /* HCI info for socket */ 1300 #define hci_pi(sk) ((struct hci_pinfo *) sk) 1301 1302 struct hci_pinfo { 1303 struct bt_sock bt; 1304 struct hci_dev *hdev; 1305 struct hci_filter filter; 1306 __u32 cmsg_mask; 1307 unsigned short channel; 1308 }; 1309 1310 /* HCI security filter */ 1311 #define HCI_SFLT_MAX_OGF 5 1312 1313 struct hci_sec_filter { 1314 __u32 type_mask; 1315 __u32 event_mask[2]; 1316 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 1317 }; 1318 1319 /* ----- HCI requests ----- */ 1320 #define HCI_REQ_DONE 0 1321 #define HCI_REQ_PEND 1 1322 #define HCI_REQ_CANCELED 2 1323 1324 #define hci_req_lock(d) mutex_lock(&d->req_lock) 1325 #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 1326 1327 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, 1328 u16 latency, u16 to_multiplier); 1329 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 1330 __u8 ltk[16]); 1331 1332 int hci_update_random_address(struct hci_request *req, bool require_privacy, 1333 u8 *own_addr_type); 1334 void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1335 u8 *bdaddr_type); 1336 1337 #define SCO_AIRMODE_MASK 0x0003 1338 #define SCO_AIRMODE_CVSD 0x0000 1339 #define SCO_AIRMODE_TRANSP 0x0003 1340 1341 #endif /* __HCI_CORE_H */ 1342