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