1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 4 5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License version 2 as 9 published by the Free Software Foundation; 10 11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 22 SOFTWARE IS DISCLAIMED. 23 */ 24 25 #ifndef __HCI_CORE_H 26 #define __HCI_CORE_H 27 28 #include <linux/interrupt.h> 29 #include <net/bluetooth/hci.h> 30 31 /* HCI upper protocols */ 32 #define HCI_PROTO_L2CAP 0 33 #define HCI_PROTO_SCO 1 34 35 /* HCI Core structures */ 36 struct inquiry_data { 37 bdaddr_t bdaddr; 38 __u8 pscan_rep_mode; 39 __u8 pscan_period_mode; 40 __u8 pscan_mode; 41 __u8 dev_class[3]; 42 __le16 clock_offset; 43 __s8 rssi; 44 __u8 ssp_mode; 45 }; 46 47 struct inquiry_entry { 48 struct inquiry_entry *next; 49 __u32 timestamp; 50 struct inquiry_data data; 51 }; 52 53 struct inquiry_cache { 54 spinlock_t lock; 55 __u32 timestamp; 56 struct inquiry_entry *list; 57 }; 58 59 struct hci_conn_hash { 60 struct list_head list; 61 spinlock_t lock; 62 unsigned int acl_num; 63 unsigned int sco_num; 64 unsigned int le_num; 65 }; 66 67 struct bdaddr_list { 68 struct list_head list; 69 bdaddr_t bdaddr; 70 }; 71 72 struct bt_uuid { 73 struct list_head list; 74 u8 uuid[16]; 75 u8 svc_hint; 76 }; 77 78 struct key_master_id { 79 __le16 ediv; 80 u8 rand[8]; 81 } __packed; 82 83 struct link_key_data { 84 bdaddr_t bdaddr; 85 u8 type; 86 u8 val[16]; 87 u8 pin_len; 88 u8 dlen; 89 u8 data[0]; 90 } __packed; 91 92 struct link_key { 93 struct list_head list; 94 bdaddr_t bdaddr; 95 u8 type; 96 u8 val[16]; 97 u8 pin_len; 98 u8 dlen; 99 u8 data[0]; 100 }; 101 102 struct oob_data { 103 struct list_head list; 104 bdaddr_t bdaddr; 105 u8 hash[16]; 106 u8 randomizer[16]; 107 }; 108 109 struct adv_entry { 110 struct list_head list; 111 bdaddr_t bdaddr; 112 u8 bdaddr_type; 113 }; 114 115 #define NUM_REASSEMBLY 4 116 struct hci_dev { 117 struct list_head list; 118 spinlock_t lock; 119 atomic_t refcnt; 120 121 char name[8]; 122 unsigned long flags; 123 __u16 id; 124 __u8 bus; 125 __u8 dev_type; 126 bdaddr_t bdaddr; 127 __u8 dev_name[HCI_MAX_NAME_LENGTH]; 128 __u8 eir[HCI_MAX_EIR_LENGTH]; 129 __u8 dev_class[3]; 130 __u8 major_class; 131 __u8 minor_class; 132 __u8 features[8]; 133 __u8 extfeatures[8]; 134 __u8 commands[64]; 135 __u8 ssp_mode; 136 __u8 hci_ver; 137 __u16 hci_rev; 138 __u8 lmp_ver; 139 __u16 manufacturer; 140 __le16 lmp_subver; 141 __u16 voice_setting; 142 __u8 io_capability; 143 144 __u16 pkt_type; 145 __u16 esco_type; 146 __u16 link_policy; 147 __u16 link_mode; 148 149 __u32 idle_timeout; 150 __u16 sniff_min_interval; 151 __u16 sniff_max_interval; 152 153 unsigned int auto_accept_delay; 154 155 unsigned long quirks; 156 157 atomic_t cmd_cnt; 158 unsigned int acl_cnt; 159 unsigned int sco_cnt; 160 unsigned int le_cnt; 161 162 unsigned int acl_mtu; 163 unsigned int sco_mtu; 164 unsigned int le_mtu; 165 unsigned int acl_pkts; 166 unsigned int sco_pkts; 167 unsigned int le_pkts; 168 169 unsigned long acl_last_tx; 170 unsigned long sco_last_tx; 171 unsigned long le_last_tx; 172 173 struct workqueue_struct *workqueue; 174 175 struct work_struct power_on; 176 struct work_struct power_off; 177 struct timer_list off_timer; 178 179 struct timer_list cmd_timer; 180 struct tasklet_struct cmd_task; 181 struct tasklet_struct rx_task; 182 struct tasklet_struct tx_task; 183 184 struct sk_buff_head rx_q; 185 struct sk_buff_head raw_q; 186 struct sk_buff_head cmd_q; 187 188 struct sk_buff *sent_cmd; 189 struct sk_buff *reassembly[NUM_REASSEMBLY]; 190 191 struct mutex req_lock; 192 wait_queue_head_t req_wait_q; 193 __u32 req_status; 194 __u32 req_result; 195 196 __u16 init_last_cmd; 197 198 struct crypto_blkcipher *tfm; 199 200 struct inquiry_cache inq_cache; 201 struct hci_conn_hash conn_hash; 202 struct list_head blacklist; 203 204 struct list_head uuids; 205 206 struct list_head link_keys; 207 208 struct list_head remote_oob_data; 209 210 struct list_head adv_entries; 211 struct timer_list adv_timer; 212 213 struct hci_dev_stats stat; 214 215 struct sk_buff_head driver_init; 216 217 void *driver_data; 218 void *core_data; 219 220 atomic_t promisc; 221 222 struct dentry *debugfs; 223 224 struct device *parent; 225 struct device dev; 226 227 struct rfkill *rfkill; 228 229 struct module *owner; 230 231 int (*open)(struct hci_dev *hdev); 232 int (*close)(struct hci_dev *hdev); 233 int (*flush)(struct hci_dev *hdev); 234 int (*send)(struct sk_buff *skb); 235 void (*destruct)(struct hci_dev *hdev); 236 void (*notify)(struct hci_dev *hdev, unsigned int evt); 237 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 238 }; 239 240 struct hci_conn { 241 struct list_head list; 242 243 atomic_t refcnt; 244 245 bdaddr_t dst; 246 __u8 dst_type; 247 __u16 handle; 248 __u16 state; 249 __u8 mode; 250 __u8 type; 251 __u8 out; 252 __u8 attempt; 253 __u8 dev_class[3]; 254 __u8 features[8]; 255 __u8 ssp_mode; 256 __u16 interval; 257 __u16 pkt_type; 258 __u16 link_policy; 259 __u32 link_mode; 260 __u8 key_type; 261 __u8 auth_type; 262 __u8 sec_level; 263 __u8 pending_sec_level; 264 __u8 pin_length; 265 __u8 enc_key_size; 266 __u8 io_capability; 267 __u8 power_save; 268 __u16 disc_timeout; 269 unsigned long pend; 270 271 __u8 remote_cap; 272 __u8 remote_oob; 273 __u8 remote_auth; 274 275 unsigned int sent; 276 277 struct sk_buff_head data_q; 278 279 struct timer_list disc_timer; 280 struct timer_list idle_timer; 281 struct timer_list auto_accept_timer; 282 283 struct work_struct work_add; 284 struct work_struct work_del; 285 286 struct device dev; 287 atomic_t devref; 288 289 struct hci_dev *hdev; 290 void *l2cap_data; 291 void *sco_data; 292 293 struct hci_conn *link; 294 295 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 296 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 297 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 298 }; 299 300 extern struct hci_proto *hci_proto[]; 301 extern struct list_head hci_dev_list; 302 extern struct list_head hci_cb_list; 303 extern rwlock_t hci_dev_list_lock; 304 extern rwlock_t hci_cb_list_lock; 305 306 /* ----- Inquiry cache ----- */ 307 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 308 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 309 310 #define inquiry_cache_lock(c) spin_lock(&c->lock) 311 #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 312 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 313 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 314 315 static inline void inquiry_cache_init(struct hci_dev *hdev) 316 { 317 struct inquiry_cache *c = &hdev->inq_cache; 318 spin_lock_init(&c->lock); 319 c->list = NULL; 320 } 321 322 static inline int inquiry_cache_empty(struct hci_dev *hdev) 323 { 324 struct inquiry_cache *c = &hdev->inq_cache; 325 return c->list == NULL; 326 } 327 328 static inline long inquiry_cache_age(struct hci_dev *hdev) 329 { 330 struct inquiry_cache *c = &hdev->inq_cache; 331 return jiffies - c->timestamp; 332 } 333 334 static inline long inquiry_entry_age(struct inquiry_entry *e) 335 { 336 return jiffies - e->timestamp; 337 } 338 339 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 340 bdaddr_t *bdaddr); 341 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 342 343 /* ----- HCI Connections ----- */ 344 enum { 345 HCI_CONN_AUTH_PEND, 346 HCI_CONN_REAUTH_PEND, 347 HCI_CONN_ENCRYPT_PEND, 348 HCI_CONN_RSWITCH_PEND, 349 HCI_CONN_MODE_CHANGE_PEND, 350 HCI_CONN_SCO_SETUP_PEND, 351 }; 352 353 static inline void hci_conn_hash_init(struct hci_dev *hdev) 354 { 355 struct hci_conn_hash *h = &hdev->conn_hash; 356 INIT_LIST_HEAD(&h->list); 357 spin_lock_init(&h->lock); 358 h->acl_num = 0; 359 h->sco_num = 0; 360 } 361 362 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 363 { 364 struct hci_conn_hash *h = &hdev->conn_hash; 365 list_add(&c->list, &h->list); 366 switch (c->type) { 367 case ACL_LINK: 368 h->acl_num++; 369 break; 370 case LE_LINK: 371 h->le_num++; 372 break; 373 case SCO_LINK: 374 case ESCO_LINK: 375 h->sco_num++; 376 break; 377 } 378 } 379 380 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 381 { 382 struct hci_conn_hash *h = &hdev->conn_hash; 383 list_del(&c->list); 384 switch (c->type) { 385 case ACL_LINK: 386 h->acl_num--; 387 break; 388 case LE_LINK: 389 h->le_num--; 390 break; 391 case SCO_LINK: 392 case ESCO_LINK: 393 h->sco_num--; 394 break; 395 } 396 } 397 398 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 399 __u16 handle) 400 { 401 struct hci_conn_hash *h = &hdev->conn_hash; 402 struct list_head *p; 403 struct hci_conn *c; 404 405 list_for_each(p, &h->list) { 406 c = list_entry(p, struct hci_conn, list); 407 if (c->handle == handle) 408 return c; 409 } 410 return NULL; 411 } 412 413 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 414 __u8 type, bdaddr_t *ba) 415 { 416 struct hci_conn_hash *h = &hdev->conn_hash; 417 struct list_head *p; 418 struct hci_conn *c; 419 420 list_for_each(p, &h->list) { 421 c = list_entry(p, struct hci_conn, list); 422 if (c->type == type && !bacmp(&c->dst, ba)) 423 return c; 424 } 425 return NULL; 426 } 427 428 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 429 __u8 type, __u16 state) 430 { 431 struct hci_conn_hash *h = &hdev->conn_hash; 432 struct list_head *p; 433 struct hci_conn *c; 434 435 list_for_each(p, &h->list) { 436 c = list_entry(p, struct hci_conn, list); 437 if (c->type == type && c->state == state) 438 return c; 439 } 440 return NULL; 441 } 442 443 void hci_acl_connect(struct hci_conn *conn); 444 void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 445 void hci_add_sco(struct hci_conn *conn, __u16 handle); 446 void hci_setup_sync(struct hci_conn *conn, __u16 handle); 447 void hci_sco_setup(struct hci_conn *conn, __u8 status); 448 449 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 450 int hci_conn_del(struct hci_conn *conn); 451 void hci_conn_hash_flush(struct hci_dev *hdev); 452 void hci_conn_check_pending(struct hci_dev *hdev); 453 454 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, 455 __u8 sec_level, __u8 auth_type); 456 int hci_conn_check_link_mode(struct hci_conn *conn); 457 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 458 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 459 int hci_conn_change_link_key(struct hci_conn *conn); 460 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 461 462 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 463 void hci_conn_enter_sniff_mode(struct hci_conn *conn); 464 465 void hci_conn_hold_device(struct hci_conn *conn); 466 void hci_conn_put_device(struct hci_conn *conn); 467 468 static inline void hci_conn_hold(struct hci_conn *conn) 469 { 470 atomic_inc(&conn->refcnt); 471 del_timer(&conn->disc_timer); 472 } 473 474 static inline void hci_conn_put(struct hci_conn *conn) 475 { 476 if (atomic_dec_and_test(&conn->refcnt)) { 477 unsigned long timeo; 478 if (conn->type == ACL_LINK) { 479 del_timer(&conn->idle_timer); 480 if (conn->state == BT_CONNECTED) { 481 timeo = msecs_to_jiffies(conn->disc_timeout); 482 if (!conn->out) 483 timeo *= 2; 484 } else { 485 timeo = msecs_to_jiffies(10); 486 } 487 } else { 488 timeo = msecs_to_jiffies(10); 489 } 490 mod_timer(&conn->disc_timer, jiffies + timeo); 491 } 492 } 493 494 /* ----- HCI Devices ----- */ 495 static inline void __hci_dev_put(struct hci_dev *d) 496 { 497 if (atomic_dec_and_test(&d->refcnt)) 498 d->destruct(d); 499 } 500 501 static inline void hci_dev_put(struct hci_dev *d) 502 { 503 __hci_dev_put(d); 504 module_put(d->owner); 505 } 506 507 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 508 { 509 atomic_inc(&d->refcnt); 510 return d; 511 } 512 513 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 514 { 515 if (try_module_get(d->owner)) 516 return __hci_dev_hold(d); 517 return NULL; 518 } 519 520 #define hci_dev_lock(d) spin_lock(&d->lock) 521 #define hci_dev_unlock(d) spin_unlock(&d->lock) 522 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 523 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 524 525 struct hci_dev *hci_dev_get(int index); 526 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 527 528 struct hci_dev *hci_alloc_dev(void); 529 void hci_free_dev(struct hci_dev *hdev); 530 int hci_register_dev(struct hci_dev *hdev); 531 int hci_unregister_dev(struct hci_dev *hdev); 532 int hci_suspend_dev(struct hci_dev *hdev); 533 int hci_resume_dev(struct hci_dev *hdev); 534 int hci_dev_open(__u16 dev); 535 int hci_dev_close(__u16 dev); 536 int hci_dev_reset(__u16 dev); 537 int hci_dev_reset_stat(__u16 dev); 538 int hci_dev_cmd(unsigned int cmd, void __user *arg); 539 int hci_get_dev_list(void __user *arg); 540 int hci_get_dev_info(void __user *arg); 541 int hci_get_conn_list(void __user *arg); 542 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 543 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 544 int hci_inquiry(void __user *arg); 545 546 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 547 int hci_blacklist_clear(struct hci_dev *hdev); 548 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr); 549 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr); 550 551 int hci_uuids_clear(struct hci_dev *hdev); 552 553 int hci_link_keys_clear(struct hci_dev *hdev); 554 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 555 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 556 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); 557 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); 558 struct link_key *hci_find_link_key_type(struct hci_dev *hdev, 559 bdaddr_t *bdaddr, u8 type); 560 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr, 561 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]); 562 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 563 564 int hci_remote_oob_data_clear(struct hci_dev *hdev); 565 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 566 bdaddr_t *bdaddr); 567 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, 568 u8 *randomizer); 569 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 570 571 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */ 572 int hci_adv_entries_clear(struct hci_dev *hdev); 573 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr); 574 int hci_add_adv_entry(struct hci_dev *hdev, 575 struct hci_ev_le_advertising_info *ev); 576 577 void hci_del_off_timer(struct hci_dev *hdev); 578 579 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 580 581 int hci_recv_frame(struct sk_buff *skb); 582 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 583 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 584 585 int hci_register_sysfs(struct hci_dev *hdev); 586 void hci_unregister_sysfs(struct hci_dev *hdev); 587 void hci_conn_init_sysfs(struct hci_conn *conn); 588 void hci_conn_add_sysfs(struct hci_conn *conn); 589 void hci_conn_del_sysfs(struct hci_conn *conn); 590 591 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 592 593 /* ----- LMP capabilities ----- */ 594 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 595 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 596 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 597 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 598 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 599 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 600 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) 601 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) 602 603 /* ----- Extended LMP capabilities ----- */ 604 #define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE) 605 606 /* ----- HCI protocols ----- */ 607 struct hci_proto { 608 char *name; 609 unsigned int id; 610 unsigned long flags; 611 612 void *priv; 613 614 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, 615 __u8 type); 616 int (*connect_cfm) (struct hci_conn *conn, __u8 status); 617 int (*disconn_ind) (struct hci_conn *conn); 618 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 619 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, 620 __u16 flags); 621 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 622 int (*security_cfm) (struct hci_conn *conn, __u8 status, 623 __u8 encrypt); 624 }; 625 626 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 627 __u8 type) 628 { 629 register struct hci_proto *hp; 630 int mask = 0; 631 632 hp = hci_proto[HCI_PROTO_L2CAP]; 633 if (hp && hp->connect_ind) 634 mask |= hp->connect_ind(hdev, bdaddr, type); 635 636 hp = hci_proto[HCI_PROTO_SCO]; 637 if (hp && hp->connect_ind) 638 mask |= hp->connect_ind(hdev, bdaddr, type); 639 640 return mask; 641 } 642 643 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 644 { 645 register struct hci_proto *hp; 646 647 hp = hci_proto[HCI_PROTO_L2CAP]; 648 if (hp && hp->connect_cfm) 649 hp->connect_cfm(conn, status); 650 651 hp = hci_proto[HCI_PROTO_SCO]; 652 if (hp && hp->connect_cfm) 653 hp->connect_cfm(conn, status); 654 655 if (conn->connect_cfm_cb) 656 conn->connect_cfm_cb(conn, status); 657 } 658 659 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 660 { 661 register struct hci_proto *hp; 662 int reason = 0x13; 663 664 hp = hci_proto[HCI_PROTO_L2CAP]; 665 if (hp && hp->disconn_ind) 666 reason = hp->disconn_ind(conn); 667 668 hp = hci_proto[HCI_PROTO_SCO]; 669 if (hp && hp->disconn_ind) 670 reason = hp->disconn_ind(conn); 671 672 return reason; 673 } 674 675 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 676 { 677 register struct hci_proto *hp; 678 679 hp = hci_proto[HCI_PROTO_L2CAP]; 680 if (hp && hp->disconn_cfm) 681 hp->disconn_cfm(conn, reason); 682 683 hp = hci_proto[HCI_PROTO_SCO]; 684 if (hp && hp->disconn_cfm) 685 hp->disconn_cfm(conn, reason); 686 687 if (conn->disconn_cfm_cb) 688 conn->disconn_cfm_cb(conn, reason); 689 } 690 691 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 692 { 693 register struct hci_proto *hp; 694 __u8 encrypt; 695 696 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 697 return; 698 699 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 700 701 hp = hci_proto[HCI_PROTO_L2CAP]; 702 if (hp && hp->security_cfm) 703 hp->security_cfm(conn, status, encrypt); 704 705 hp = hci_proto[HCI_PROTO_SCO]; 706 if (hp && hp->security_cfm) 707 hp->security_cfm(conn, status, encrypt); 708 709 if (conn->security_cfm_cb) 710 conn->security_cfm_cb(conn, status); 711 } 712 713 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 714 __u8 encrypt) 715 { 716 register struct hci_proto *hp; 717 718 hp = hci_proto[HCI_PROTO_L2CAP]; 719 if (hp && hp->security_cfm) 720 hp->security_cfm(conn, status, encrypt); 721 722 hp = hci_proto[HCI_PROTO_SCO]; 723 if (hp && hp->security_cfm) 724 hp->security_cfm(conn, status, encrypt); 725 726 if (conn->security_cfm_cb) 727 conn->security_cfm_cb(conn, status); 728 } 729 730 int hci_register_proto(struct hci_proto *hproto); 731 int hci_unregister_proto(struct hci_proto *hproto); 732 733 /* ----- HCI callbacks ----- */ 734 struct hci_cb { 735 struct list_head list; 736 737 char *name; 738 739 void (*security_cfm) (struct hci_conn *conn, __u8 status, 740 __u8 encrypt); 741 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 742 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 743 }; 744 745 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 746 { 747 struct list_head *p; 748 __u8 encrypt; 749 750 hci_proto_auth_cfm(conn, status); 751 752 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 753 return; 754 755 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 756 757 read_lock_bh(&hci_cb_list_lock); 758 list_for_each(p, &hci_cb_list) { 759 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 760 if (cb->security_cfm) 761 cb->security_cfm(conn, status, encrypt); 762 } 763 read_unlock_bh(&hci_cb_list_lock); 764 } 765 766 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 767 __u8 encrypt) 768 { 769 struct list_head *p; 770 771 if (conn->sec_level == BT_SECURITY_SDP) 772 conn->sec_level = BT_SECURITY_LOW; 773 774 if (conn->pending_sec_level > conn->sec_level) 775 conn->sec_level = conn->pending_sec_level; 776 777 hci_proto_encrypt_cfm(conn, status, encrypt); 778 779 read_lock_bh(&hci_cb_list_lock); 780 list_for_each(p, &hci_cb_list) { 781 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 782 if (cb->security_cfm) 783 cb->security_cfm(conn, status, encrypt); 784 } 785 read_unlock_bh(&hci_cb_list_lock); 786 } 787 788 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 789 { 790 struct list_head *p; 791 792 read_lock_bh(&hci_cb_list_lock); 793 list_for_each(p, &hci_cb_list) { 794 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 795 if (cb->key_change_cfm) 796 cb->key_change_cfm(conn, status); 797 } 798 read_unlock_bh(&hci_cb_list_lock); 799 } 800 801 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 802 __u8 role) 803 { 804 struct list_head *p; 805 806 read_lock_bh(&hci_cb_list_lock); 807 list_for_each(p, &hci_cb_list) { 808 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 809 if (cb->role_switch_cfm) 810 cb->role_switch_cfm(conn, status, role); 811 } 812 read_unlock_bh(&hci_cb_list_lock); 813 } 814 815 int hci_register_cb(struct hci_cb *hcb); 816 int hci_unregister_cb(struct hci_cb *hcb); 817 818 int hci_register_notifier(struct notifier_block *nb); 819 int hci_unregister_notifier(struct notifier_block *nb); 820 821 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 822 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 823 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 824 825 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 826 827 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 828 829 /* ----- HCI Sockets ----- */ 830 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb, 831 struct sock *skip_sk); 832 833 /* Management interface */ 834 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 835 int mgmt_index_added(u16 index); 836 int mgmt_index_removed(u16 index); 837 int mgmt_powered(u16 index, u8 powered); 838 int mgmt_discoverable(u16 index, u8 discoverable); 839 int mgmt_connectable(u16 index, u8 connectable); 840 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent); 841 int mgmt_connected(u16 index, bdaddr_t *bdaddr); 842 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr); 843 int mgmt_disconnect_failed(u16 index); 844 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status); 845 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure); 846 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 847 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 848 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value, 849 u8 confirm_hint); 850 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 851 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr, 852 u8 status); 853 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status); 854 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status); 855 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer, 856 u8 status); 857 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi, 858 u8 *eir); 859 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name); 860 int mgmt_discovering(u16 index, u8 discovering); 861 862 /* HCI info for socket */ 863 #define hci_pi(sk) ((struct hci_pinfo *) sk) 864 865 struct hci_pinfo { 866 struct bt_sock bt; 867 struct hci_dev *hdev; 868 struct hci_filter filter; 869 __u32 cmsg_mask; 870 unsigned short channel; 871 }; 872 873 /* HCI security filter */ 874 #define HCI_SFLT_MAX_OGF 5 875 876 struct hci_sec_filter { 877 __u32 type_mask; 878 __u32 event_mask[2]; 879 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 880 }; 881 882 /* ----- HCI requests ----- */ 883 #define HCI_REQ_DONE 0 884 #define HCI_REQ_PEND 1 885 #define HCI_REQ_CANCELED 2 886 887 #define hci_req_lock(d) mutex_lock(&d->req_lock) 888 #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 889 890 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); 891 892 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, 893 u16 latency, u16 to_multiplier); 894 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], 895 __u8 ltk[16]); 896 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]); 897 void hci_le_ltk_neg_reply(struct hci_conn *conn); 898 899 #endif /* __HCI_CORE_H */ 900