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