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 inquiry_cache inq_cache; 199 struct hci_conn_hash conn_hash; 200 struct list_head blacklist; 201 202 struct list_head uuids; 203 204 struct list_head link_keys; 205 206 struct list_head remote_oob_data; 207 208 struct list_head adv_entries; 209 struct timer_list adv_timer; 210 211 struct hci_dev_stats stat; 212 213 struct sk_buff_head driver_init; 214 215 void *driver_data; 216 void *core_data; 217 218 atomic_t promisc; 219 220 struct dentry *debugfs; 221 222 struct device *parent; 223 struct device dev; 224 225 struct rfkill *rfkill; 226 227 struct module *owner; 228 229 int (*open)(struct hci_dev *hdev); 230 int (*close)(struct hci_dev *hdev); 231 int (*flush)(struct hci_dev *hdev); 232 int (*send)(struct sk_buff *skb); 233 void (*destruct)(struct hci_dev *hdev); 234 void (*notify)(struct hci_dev *hdev, unsigned int evt); 235 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 236 }; 237 238 struct hci_conn { 239 struct list_head list; 240 241 atomic_t refcnt; 242 243 bdaddr_t dst; 244 __u8 dst_type; 245 __u16 handle; 246 __u16 state; 247 __u8 mode; 248 __u8 type; 249 __u8 out; 250 __u8 attempt; 251 __u8 dev_class[3]; 252 __u8 features[8]; 253 __u8 ssp_mode; 254 __u16 interval; 255 __u16 pkt_type; 256 __u16 link_policy; 257 __u32 link_mode; 258 __u8 key_type; 259 __u8 auth_type; 260 __u8 sec_level; 261 __u8 pending_sec_level; 262 __u8 pin_length; 263 __u8 enc_key_size; 264 __u8 io_capability; 265 __u8 power_save; 266 __u16 disc_timeout; 267 unsigned long pend; 268 269 __u8 remote_cap; 270 __u8 remote_oob; 271 __u8 remote_auth; 272 273 unsigned int sent; 274 275 struct sk_buff_head data_q; 276 277 struct timer_list disc_timer; 278 struct timer_list idle_timer; 279 struct timer_list auto_accept_timer; 280 281 struct work_struct work_add; 282 struct work_struct work_del; 283 284 struct device dev; 285 atomic_t devref; 286 287 struct hci_dev *hdev; 288 void *l2cap_data; 289 void *sco_data; 290 291 struct hci_conn *link; 292 293 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 294 void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 295 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 296 }; 297 298 extern struct hci_proto *hci_proto[]; 299 extern struct list_head hci_dev_list; 300 extern struct list_head hci_cb_list; 301 extern rwlock_t hci_dev_list_lock; 302 extern rwlock_t hci_cb_list_lock; 303 304 /* ----- Inquiry cache ----- */ 305 #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 306 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 307 308 #define inquiry_cache_lock(c) spin_lock(&c->lock) 309 #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 310 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 311 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 312 313 static inline void inquiry_cache_init(struct hci_dev *hdev) 314 { 315 struct inquiry_cache *c = &hdev->inq_cache; 316 spin_lock_init(&c->lock); 317 c->list = NULL; 318 } 319 320 static inline int inquiry_cache_empty(struct hci_dev *hdev) 321 { 322 struct inquiry_cache *c = &hdev->inq_cache; 323 return c->list == NULL; 324 } 325 326 static inline long inquiry_cache_age(struct hci_dev *hdev) 327 { 328 struct inquiry_cache *c = &hdev->inq_cache; 329 return jiffies - c->timestamp; 330 } 331 332 static inline long inquiry_entry_age(struct inquiry_entry *e) 333 { 334 return jiffies - e->timestamp; 335 } 336 337 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 338 bdaddr_t *bdaddr); 339 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 340 341 /* ----- HCI Connections ----- */ 342 enum { 343 HCI_CONN_AUTH_PEND, 344 HCI_CONN_REAUTH_PEND, 345 HCI_CONN_ENCRYPT_PEND, 346 HCI_CONN_RSWITCH_PEND, 347 HCI_CONN_MODE_CHANGE_PEND, 348 HCI_CONN_SCO_SETUP_PEND, 349 HCI_CONN_LE_SMP_PEND, 350 }; 351 352 static inline void hci_conn_hash_init(struct hci_dev *hdev) 353 { 354 struct hci_conn_hash *h = &hdev->conn_hash; 355 INIT_LIST_HEAD(&h->list); 356 spin_lock_init(&h->lock); 357 h->acl_num = 0; 358 h->sco_num = 0; 359 } 360 361 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 362 { 363 struct hci_conn_hash *h = &hdev->conn_hash; 364 list_add(&c->list, &h->list); 365 switch (c->type) { 366 case ACL_LINK: 367 h->acl_num++; 368 break; 369 case LE_LINK: 370 h->le_num++; 371 break; 372 case SCO_LINK: 373 case ESCO_LINK: 374 h->sco_num++; 375 break; 376 } 377 } 378 379 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 380 { 381 struct hci_conn_hash *h = &hdev->conn_hash; 382 list_del(&c->list); 383 switch (c->type) { 384 case ACL_LINK: 385 h->acl_num--; 386 break; 387 case LE_LINK: 388 h->le_num--; 389 break; 390 case SCO_LINK: 391 case ESCO_LINK: 392 h->sco_num--; 393 break; 394 } 395 } 396 397 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 398 { 399 struct hci_conn_hash *h = &hdev->conn_hash; 400 switch (type) { 401 case ACL_LINK: 402 return h->acl_num; 403 case LE_LINK: 404 return h->le_num; 405 case SCO_LINK: 406 case ESCO_LINK: 407 return h->sco_num; 408 default: 409 return 0; 410 } 411 } 412 413 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 414 __u16 handle) 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->handle == handle) 423 return c; 424 } 425 return NULL; 426 } 427 428 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 429 __u8 type, bdaddr_t *ba) 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 && !bacmp(&c->dst, ba)) 438 return c; 439 } 440 return NULL; 441 } 442 443 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 444 __u8 type, __u16 state) 445 { 446 struct hci_conn_hash *h = &hdev->conn_hash; 447 struct list_head *p; 448 struct hci_conn *c; 449 450 list_for_each(p, &h->list) { 451 c = list_entry(p, struct hci_conn, list); 452 if (c->type == type && c->state == state) 453 return c; 454 } 455 return NULL; 456 } 457 458 void hci_acl_connect(struct hci_conn *conn); 459 void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 460 void hci_add_sco(struct hci_conn *conn, __u16 handle); 461 void hci_setup_sync(struct hci_conn *conn, __u16 handle); 462 void hci_sco_setup(struct hci_conn *conn, __u8 status); 463 464 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 465 int hci_conn_del(struct hci_conn *conn); 466 void hci_conn_hash_flush(struct hci_dev *hdev); 467 void hci_conn_check_pending(struct hci_dev *hdev); 468 469 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, 470 __u8 sec_level, __u8 auth_type); 471 int hci_conn_check_link_mode(struct hci_conn *conn); 472 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 473 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 474 int hci_conn_change_link_key(struct hci_conn *conn); 475 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 476 477 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 478 void hci_conn_enter_sniff_mode(struct hci_conn *conn); 479 480 void hci_conn_hold_device(struct hci_conn *conn); 481 void hci_conn_put_device(struct hci_conn *conn); 482 483 static inline void hci_conn_hold(struct hci_conn *conn) 484 { 485 atomic_inc(&conn->refcnt); 486 del_timer(&conn->disc_timer); 487 } 488 489 static inline void hci_conn_put(struct hci_conn *conn) 490 { 491 if (atomic_dec_and_test(&conn->refcnt)) { 492 unsigned long timeo; 493 if (conn->type == ACL_LINK || conn->type == LE_LINK) { 494 del_timer(&conn->idle_timer); 495 if (conn->state == BT_CONNECTED) { 496 timeo = msecs_to_jiffies(conn->disc_timeout); 497 if (!conn->out) 498 timeo *= 2; 499 } else { 500 timeo = msecs_to_jiffies(10); 501 } 502 } else { 503 timeo = msecs_to_jiffies(10); 504 } 505 mod_timer(&conn->disc_timer, jiffies + timeo); 506 } 507 } 508 509 /* ----- HCI Devices ----- */ 510 static inline void __hci_dev_put(struct hci_dev *d) 511 { 512 if (atomic_dec_and_test(&d->refcnt)) 513 d->destruct(d); 514 } 515 516 static inline void hci_dev_put(struct hci_dev *d) 517 { 518 __hci_dev_put(d); 519 module_put(d->owner); 520 } 521 522 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 523 { 524 atomic_inc(&d->refcnt); 525 return d; 526 } 527 528 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 529 { 530 if (try_module_get(d->owner)) 531 return __hci_dev_hold(d); 532 return NULL; 533 } 534 535 #define hci_dev_lock(d) spin_lock(&d->lock) 536 #define hci_dev_unlock(d) spin_unlock(&d->lock) 537 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 538 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 539 540 struct hci_dev *hci_dev_get(int index); 541 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 542 543 struct hci_dev *hci_alloc_dev(void); 544 void hci_free_dev(struct hci_dev *hdev); 545 int hci_register_dev(struct hci_dev *hdev); 546 int hci_unregister_dev(struct hci_dev *hdev); 547 int hci_suspend_dev(struct hci_dev *hdev); 548 int hci_resume_dev(struct hci_dev *hdev); 549 int hci_dev_open(__u16 dev); 550 int hci_dev_close(__u16 dev); 551 int hci_dev_reset(__u16 dev); 552 int hci_dev_reset_stat(__u16 dev); 553 int hci_dev_cmd(unsigned int cmd, void __user *arg); 554 int hci_get_dev_list(void __user *arg); 555 int hci_get_dev_info(void __user *arg); 556 int hci_get_conn_list(void __user *arg); 557 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 558 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 559 int hci_inquiry(void __user *arg); 560 561 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 562 int hci_blacklist_clear(struct hci_dev *hdev); 563 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr); 564 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr); 565 566 int hci_uuids_clear(struct hci_dev *hdev); 567 568 int hci_link_keys_clear(struct hci_dev *hdev); 569 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 570 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 571 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); 572 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); 573 struct link_key *hci_find_link_key_type(struct hci_dev *hdev, 574 bdaddr_t *bdaddr, u8 type); 575 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr, 576 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]); 577 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 578 579 int hci_remote_oob_data_clear(struct hci_dev *hdev); 580 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 581 bdaddr_t *bdaddr); 582 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, 583 u8 *randomizer); 584 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 585 586 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */ 587 int hci_adv_entries_clear(struct hci_dev *hdev); 588 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr); 589 int hci_add_adv_entry(struct hci_dev *hdev, 590 struct hci_ev_le_advertising_info *ev); 591 592 void hci_del_off_timer(struct hci_dev *hdev); 593 594 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 595 596 int hci_recv_frame(struct sk_buff *skb); 597 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 598 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 599 600 int hci_register_sysfs(struct hci_dev *hdev); 601 void hci_unregister_sysfs(struct hci_dev *hdev); 602 void hci_conn_init_sysfs(struct hci_conn *conn); 603 void hci_conn_add_sysfs(struct hci_conn *conn); 604 void hci_conn_del_sysfs(struct hci_conn *conn); 605 606 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 607 608 /* ----- LMP capabilities ----- */ 609 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 610 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 611 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 612 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 613 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 614 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 615 #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) 616 #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) 617 618 /* ----- Extended LMP capabilities ----- */ 619 #define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE) 620 621 /* ----- HCI protocols ----- */ 622 struct hci_proto { 623 char *name; 624 unsigned int id; 625 unsigned long flags; 626 627 void *priv; 628 629 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, 630 __u8 type); 631 int (*connect_cfm) (struct hci_conn *conn, __u8 status); 632 int (*disconn_ind) (struct hci_conn *conn); 633 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 634 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, 635 __u16 flags); 636 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 637 int (*security_cfm) (struct hci_conn *conn, __u8 status, 638 __u8 encrypt); 639 }; 640 641 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 642 __u8 type) 643 { 644 register struct hci_proto *hp; 645 int mask = 0; 646 647 hp = hci_proto[HCI_PROTO_L2CAP]; 648 if (hp && hp->connect_ind) 649 mask |= hp->connect_ind(hdev, bdaddr, type); 650 651 hp = hci_proto[HCI_PROTO_SCO]; 652 if (hp && hp->connect_ind) 653 mask |= hp->connect_ind(hdev, bdaddr, type); 654 655 return mask; 656 } 657 658 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 659 { 660 register struct hci_proto *hp; 661 662 hp = hci_proto[HCI_PROTO_L2CAP]; 663 if (hp && hp->connect_cfm) 664 hp->connect_cfm(conn, status); 665 666 hp = hci_proto[HCI_PROTO_SCO]; 667 if (hp && hp->connect_cfm) 668 hp->connect_cfm(conn, status); 669 670 if (conn->connect_cfm_cb) 671 conn->connect_cfm_cb(conn, status); 672 } 673 674 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 675 { 676 register struct hci_proto *hp; 677 int reason = 0x13; 678 679 hp = hci_proto[HCI_PROTO_L2CAP]; 680 if (hp && hp->disconn_ind) 681 reason = hp->disconn_ind(conn); 682 683 hp = hci_proto[HCI_PROTO_SCO]; 684 if (hp && hp->disconn_ind) 685 reason = hp->disconn_ind(conn); 686 687 return reason; 688 } 689 690 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 691 { 692 register struct hci_proto *hp; 693 694 hp = hci_proto[HCI_PROTO_L2CAP]; 695 if (hp && hp->disconn_cfm) 696 hp->disconn_cfm(conn, reason); 697 698 hp = hci_proto[HCI_PROTO_SCO]; 699 if (hp && hp->disconn_cfm) 700 hp->disconn_cfm(conn, reason); 701 702 if (conn->disconn_cfm_cb) 703 conn->disconn_cfm_cb(conn, reason); 704 } 705 706 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 707 { 708 register struct hci_proto *hp; 709 __u8 encrypt; 710 711 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 712 return; 713 714 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 715 716 hp = hci_proto[HCI_PROTO_L2CAP]; 717 if (hp && hp->security_cfm) 718 hp->security_cfm(conn, status, encrypt); 719 720 hp = hci_proto[HCI_PROTO_SCO]; 721 if (hp && hp->security_cfm) 722 hp->security_cfm(conn, status, encrypt); 723 724 if (conn->security_cfm_cb) 725 conn->security_cfm_cb(conn, status); 726 } 727 728 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 729 __u8 encrypt) 730 { 731 register struct hci_proto *hp; 732 733 hp = hci_proto[HCI_PROTO_L2CAP]; 734 if (hp && hp->security_cfm) 735 hp->security_cfm(conn, status, encrypt); 736 737 hp = hci_proto[HCI_PROTO_SCO]; 738 if (hp && hp->security_cfm) 739 hp->security_cfm(conn, status, encrypt); 740 741 if (conn->security_cfm_cb) 742 conn->security_cfm_cb(conn, status); 743 } 744 745 int hci_register_proto(struct hci_proto *hproto); 746 int hci_unregister_proto(struct hci_proto *hproto); 747 748 /* ----- HCI callbacks ----- */ 749 struct hci_cb { 750 struct list_head list; 751 752 char *name; 753 754 void (*security_cfm) (struct hci_conn *conn, __u8 status, 755 __u8 encrypt); 756 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 757 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 758 }; 759 760 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 761 { 762 struct list_head *p; 763 __u8 encrypt; 764 765 hci_proto_auth_cfm(conn, status); 766 767 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 768 return; 769 770 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 771 772 read_lock_bh(&hci_cb_list_lock); 773 list_for_each(p, &hci_cb_list) { 774 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 775 if (cb->security_cfm) 776 cb->security_cfm(conn, status, encrypt); 777 } 778 read_unlock_bh(&hci_cb_list_lock); 779 } 780 781 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 782 __u8 encrypt) 783 { 784 struct list_head *p; 785 786 if (conn->sec_level == BT_SECURITY_SDP) 787 conn->sec_level = BT_SECURITY_LOW; 788 789 if (conn->pending_sec_level > conn->sec_level) 790 conn->sec_level = conn->pending_sec_level; 791 792 hci_proto_encrypt_cfm(conn, status, encrypt); 793 794 read_lock_bh(&hci_cb_list_lock); 795 list_for_each(p, &hci_cb_list) { 796 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 797 if (cb->security_cfm) 798 cb->security_cfm(conn, status, encrypt); 799 } 800 read_unlock_bh(&hci_cb_list_lock); 801 } 802 803 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 804 { 805 struct list_head *p; 806 807 read_lock_bh(&hci_cb_list_lock); 808 list_for_each(p, &hci_cb_list) { 809 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 810 if (cb->key_change_cfm) 811 cb->key_change_cfm(conn, status); 812 } 813 read_unlock_bh(&hci_cb_list_lock); 814 } 815 816 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 817 __u8 role) 818 { 819 struct list_head *p; 820 821 read_lock_bh(&hci_cb_list_lock); 822 list_for_each(p, &hci_cb_list) { 823 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 824 if (cb->role_switch_cfm) 825 cb->role_switch_cfm(conn, status, role); 826 } 827 read_unlock_bh(&hci_cb_list_lock); 828 } 829 830 int hci_register_cb(struct hci_cb *hcb); 831 int hci_unregister_cb(struct hci_cb *hcb); 832 833 int hci_register_notifier(struct notifier_block *nb); 834 int hci_unregister_notifier(struct notifier_block *nb); 835 836 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 837 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 838 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 839 840 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 841 842 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 843 844 /* ----- HCI Sockets ----- */ 845 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb, 846 struct sock *skip_sk); 847 848 /* Management interface */ 849 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 850 int mgmt_index_added(u16 index); 851 int mgmt_index_removed(u16 index); 852 int mgmt_powered(u16 index, u8 powered); 853 int mgmt_discoverable(u16 index, u8 discoverable); 854 int mgmt_connectable(u16 index, u8 connectable); 855 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent); 856 int mgmt_connected(u16 index, bdaddr_t *bdaddr, u8 link_type); 857 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr); 858 int mgmt_disconnect_failed(u16 index); 859 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status); 860 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure); 861 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 862 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 863 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value, 864 u8 confirm_hint); 865 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status); 866 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr, 867 u8 status); 868 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status); 869 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status); 870 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer, 871 u8 status); 872 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi, 873 u8 *eir); 874 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name); 875 int mgmt_discovering(u16 index, u8 discovering); 876 int mgmt_device_blocked(u16 index, bdaddr_t *bdaddr); 877 int mgmt_device_unblocked(u16 index, bdaddr_t *bdaddr); 878 879 /* HCI info for socket */ 880 #define hci_pi(sk) ((struct hci_pinfo *) sk) 881 882 struct hci_pinfo { 883 struct bt_sock bt; 884 struct hci_dev *hdev; 885 struct hci_filter filter; 886 __u32 cmsg_mask; 887 unsigned short channel; 888 }; 889 890 /* HCI security filter */ 891 #define HCI_SFLT_MAX_OGF 5 892 893 struct hci_sec_filter { 894 __u32 type_mask; 895 __u32 event_mask[2]; 896 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 897 }; 898 899 /* ----- HCI requests ----- */ 900 #define HCI_REQ_DONE 0 901 #define HCI_REQ_PEND 1 902 #define HCI_REQ_CANCELED 2 903 904 #define hci_req_lock(d) mutex_lock(&d->req_lock) 905 #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 906 907 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); 908 909 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, 910 u16 latency, u16 to_multiplier); 911 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], 912 __u8 ltk[16]); 913 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]); 914 void hci_le_ltk_neg_reply(struct hci_conn *conn); 915 916 #endif /* __HCI_CORE_H */ 917