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