1 /* 2 BlueZ - Bluetooth protocol stack for Linux 3 Copyright (C) 2000-2001 Qualcomm Incorporated 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 }; 64 65 struct hci_dev { 66 struct list_head list; 67 spinlock_t lock; 68 atomic_t refcnt; 69 70 char name[8]; 71 unsigned long flags; 72 __u16 id; 73 __u8 bus; 74 __u8 dev_type; 75 bdaddr_t bdaddr; 76 __u8 dev_name[248]; 77 __u8 dev_class[3]; 78 __u8 features[8]; 79 __u8 commands[64]; 80 __u8 ssp_mode; 81 __u8 hci_ver; 82 __u16 hci_rev; 83 __u16 manufacturer; 84 __u16 voice_setting; 85 86 __u16 pkt_type; 87 __u16 esco_type; 88 __u16 link_policy; 89 __u16 link_mode; 90 91 __u32 idle_timeout; 92 __u16 sniff_min_interval; 93 __u16 sniff_max_interval; 94 95 unsigned long quirks; 96 97 atomic_t cmd_cnt; 98 unsigned int acl_cnt; 99 unsigned int sco_cnt; 100 101 unsigned int acl_mtu; 102 unsigned int sco_mtu; 103 unsigned int acl_pkts; 104 unsigned int sco_pkts; 105 106 unsigned long cmd_last_tx; 107 unsigned long acl_last_tx; 108 unsigned long sco_last_tx; 109 110 struct tasklet_struct cmd_task; 111 struct tasklet_struct rx_task; 112 struct tasklet_struct tx_task; 113 114 struct sk_buff_head rx_q; 115 struct sk_buff_head raw_q; 116 struct sk_buff_head cmd_q; 117 118 struct sk_buff *sent_cmd; 119 struct sk_buff *reassembly[3]; 120 121 struct mutex req_lock; 122 wait_queue_head_t req_wait_q; 123 __u32 req_status; 124 __u32 req_result; 125 126 struct inquiry_cache inq_cache; 127 struct hci_conn_hash conn_hash; 128 129 struct hci_dev_stats stat; 130 131 struct sk_buff_head driver_init; 132 133 void *driver_data; 134 void *core_data; 135 136 atomic_t promisc; 137 138 struct dentry *debugfs; 139 140 struct device *parent; 141 struct device dev; 142 143 struct rfkill *rfkill; 144 145 struct module *owner; 146 147 int (*open)(struct hci_dev *hdev); 148 int (*close)(struct hci_dev *hdev); 149 int (*flush)(struct hci_dev *hdev); 150 int (*send)(struct sk_buff *skb); 151 void (*destruct)(struct hci_dev *hdev); 152 void (*notify)(struct hci_dev *hdev, unsigned int evt); 153 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 154 }; 155 156 struct hci_conn { 157 struct list_head list; 158 159 atomic_t refcnt; 160 spinlock_t lock; 161 162 bdaddr_t dst; 163 __u16 handle; 164 __u16 state; 165 __u8 mode; 166 __u8 type; 167 __u8 out; 168 __u8 attempt; 169 __u8 dev_class[3]; 170 __u8 features[8]; 171 __u8 ssp_mode; 172 __u16 interval; 173 __u16 pkt_type; 174 __u16 link_policy; 175 __u32 link_mode; 176 __u8 auth_type; 177 __u8 sec_level; 178 __u8 power_save; 179 __u16 disc_timeout; 180 unsigned long pend; 181 182 unsigned int sent; 183 184 struct sk_buff_head data_q; 185 186 struct timer_list disc_timer; 187 struct timer_list idle_timer; 188 189 struct work_struct work_add; 190 struct work_struct work_del; 191 192 struct device dev; 193 atomic_t devref; 194 195 struct hci_dev *hdev; 196 void *l2cap_data; 197 void *sco_data; 198 void *priv; 199 200 struct hci_conn *link; 201 }; 202 203 extern struct hci_proto *hci_proto[]; 204 extern struct list_head hci_dev_list; 205 extern struct list_head hci_cb_list; 206 extern rwlock_t hci_dev_list_lock; 207 extern rwlock_t hci_cb_list_lock; 208 209 /* ----- Inquiry cache ----- */ 210 #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 211 #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 212 213 #define inquiry_cache_lock(c) spin_lock(&c->lock) 214 #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 215 #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 216 #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 217 218 static inline void inquiry_cache_init(struct hci_dev *hdev) 219 { 220 struct inquiry_cache *c = &hdev->inq_cache; 221 spin_lock_init(&c->lock); 222 c->list = NULL; 223 } 224 225 static inline int inquiry_cache_empty(struct hci_dev *hdev) 226 { 227 struct inquiry_cache *c = &hdev->inq_cache; 228 return (c->list == NULL); 229 } 230 231 static inline long inquiry_cache_age(struct hci_dev *hdev) 232 { 233 struct inquiry_cache *c = &hdev->inq_cache; 234 return jiffies - c->timestamp; 235 } 236 237 static inline long inquiry_entry_age(struct inquiry_entry *e) 238 { 239 return jiffies - e->timestamp; 240 } 241 242 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 243 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 244 245 /* ----- HCI Connections ----- */ 246 enum { 247 HCI_CONN_AUTH_PEND, 248 HCI_CONN_ENCRYPT_PEND, 249 HCI_CONN_RSWITCH_PEND, 250 HCI_CONN_MODE_CHANGE_PEND, 251 }; 252 253 static inline void hci_conn_hash_init(struct hci_dev *hdev) 254 { 255 struct hci_conn_hash *h = &hdev->conn_hash; 256 INIT_LIST_HEAD(&h->list); 257 spin_lock_init(&h->lock); 258 h->acl_num = 0; 259 h->sco_num = 0; 260 } 261 262 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 263 { 264 struct hci_conn_hash *h = &hdev->conn_hash; 265 list_add(&c->list, &h->list); 266 if (c->type == ACL_LINK) 267 h->acl_num++; 268 else 269 h->sco_num++; 270 } 271 272 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 273 { 274 struct hci_conn_hash *h = &hdev->conn_hash; 275 list_del(&c->list); 276 if (c->type == ACL_LINK) 277 h->acl_num--; 278 else 279 h->sco_num--; 280 } 281 282 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 283 __u16 handle) 284 { 285 struct hci_conn_hash *h = &hdev->conn_hash; 286 struct list_head *p; 287 struct hci_conn *c; 288 289 list_for_each(p, &h->list) { 290 c = list_entry(p, struct hci_conn, list); 291 if (c->handle == handle) 292 return c; 293 } 294 return NULL; 295 } 296 297 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 298 __u8 type, bdaddr_t *ba) 299 { 300 struct hci_conn_hash *h = &hdev->conn_hash; 301 struct list_head *p; 302 struct hci_conn *c; 303 304 list_for_each(p, &h->list) { 305 c = list_entry(p, struct hci_conn, list); 306 if (c->type == type && !bacmp(&c->dst, ba)) 307 return c; 308 } 309 return NULL; 310 } 311 312 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 313 __u8 type, __u16 state) 314 { 315 struct hci_conn_hash *h = &hdev->conn_hash; 316 struct list_head *p; 317 struct hci_conn *c; 318 319 list_for_each(p, &h->list) { 320 c = list_entry(p, struct hci_conn, list); 321 if (c->type == type && c->state == state) 322 return c; 323 } 324 return NULL; 325 } 326 327 void hci_acl_connect(struct hci_conn *conn); 328 void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 329 void hci_add_sco(struct hci_conn *conn, __u16 handle); 330 void hci_setup_sync(struct hci_conn *conn, __u16 handle); 331 332 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 333 int hci_conn_del(struct hci_conn *conn); 334 void hci_conn_hash_flush(struct hci_dev *hdev); 335 void hci_conn_check_pending(struct hci_dev *hdev); 336 337 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 338 int hci_conn_check_link_mode(struct hci_conn *conn); 339 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 340 int hci_conn_change_link_key(struct hci_conn *conn); 341 int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 342 343 void hci_conn_enter_active_mode(struct hci_conn *conn); 344 void hci_conn_enter_sniff_mode(struct hci_conn *conn); 345 346 void hci_conn_hold_device(struct hci_conn *conn); 347 void hci_conn_put_device(struct hci_conn *conn); 348 349 static inline void hci_conn_hold(struct hci_conn *conn) 350 { 351 atomic_inc(&conn->refcnt); 352 del_timer(&conn->disc_timer); 353 } 354 355 static inline void hci_conn_put(struct hci_conn *conn) 356 { 357 if (atomic_dec_and_test(&conn->refcnt)) { 358 unsigned long timeo; 359 if (conn->type == ACL_LINK) { 360 del_timer(&conn->idle_timer); 361 if (conn->state == BT_CONNECTED) { 362 timeo = msecs_to_jiffies(conn->disc_timeout); 363 if (!conn->out) 364 timeo *= 2; 365 } else 366 timeo = msecs_to_jiffies(10); 367 } else 368 timeo = msecs_to_jiffies(10); 369 mod_timer(&conn->disc_timer, jiffies + timeo); 370 } 371 } 372 373 /* ----- HCI Devices ----- */ 374 static inline void __hci_dev_put(struct hci_dev *d) 375 { 376 if (atomic_dec_and_test(&d->refcnt)) 377 d->destruct(d); 378 } 379 380 static inline void hci_dev_put(struct hci_dev *d) 381 { 382 __hci_dev_put(d); 383 module_put(d->owner); 384 } 385 386 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 387 { 388 atomic_inc(&d->refcnt); 389 return d; 390 } 391 392 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 393 { 394 if (try_module_get(d->owner)) 395 return __hci_dev_hold(d); 396 return NULL; 397 } 398 399 #define hci_dev_lock(d) spin_lock(&d->lock) 400 #define hci_dev_unlock(d) spin_unlock(&d->lock) 401 #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 402 #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 403 404 struct hci_dev *hci_dev_get(int index); 405 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 406 407 struct hci_dev *hci_alloc_dev(void); 408 void hci_free_dev(struct hci_dev *hdev); 409 int hci_register_dev(struct hci_dev *hdev); 410 int hci_unregister_dev(struct hci_dev *hdev); 411 int hci_suspend_dev(struct hci_dev *hdev); 412 int hci_resume_dev(struct hci_dev *hdev); 413 int hci_dev_open(__u16 dev); 414 int hci_dev_close(__u16 dev); 415 int hci_dev_reset(__u16 dev); 416 int hci_dev_reset_stat(__u16 dev); 417 int hci_dev_cmd(unsigned int cmd, void __user *arg); 418 int hci_get_dev_list(void __user *arg); 419 int hci_get_dev_info(void __user *arg); 420 int hci_get_conn_list(void __user *arg); 421 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 422 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 423 int hci_inquiry(void __user *arg); 424 425 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 426 427 int hci_recv_frame(struct sk_buff *skb); 428 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 429 430 int hci_register_sysfs(struct hci_dev *hdev); 431 void hci_unregister_sysfs(struct hci_dev *hdev); 432 void hci_conn_init_sysfs(struct hci_conn *conn); 433 void hci_conn_add_sysfs(struct hci_conn *conn); 434 void hci_conn_del_sysfs(struct hci_conn *conn); 435 436 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 437 438 /* ----- LMP capabilities ----- */ 439 #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 440 #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 441 #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 442 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 443 #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 444 #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 445 446 /* ----- HCI protocols ----- */ 447 struct hci_proto { 448 char *name; 449 unsigned int id; 450 unsigned long flags; 451 452 void *priv; 453 454 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 455 int (*connect_cfm) (struct hci_conn *conn, __u8 status); 456 int (*disconn_ind) (struct hci_conn *conn); 457 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 458 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 459 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 460 int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 461 }; 462 463 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 464 { 465 register struct hci_proto *hp; 466 int mask = 0; 467 468 hp = hci_proto[HCI_PROTO_L2CAP]; 469 if (hp && hp->connect_ind) 470 mask |= hp->connect_ind(hdev, bdaddr, type); 471 472 hp = hci_proto[HCI_PROTO_SCO]; 473 if (hp && hp->connect_ind) 474 mask |= hp->connect_ind(hdev, bdaddr, type); 475 476 return mask; 477 } 478 479 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 480 { 481 register struct hci_proto *hp; 482 483 hp = hci_proto[HCI_PROTO_L2CAP]; 484 if (hp && hp->connect_cfm) 485 hp->connect_cfm(conn, status); 486 487 hp = hci_proto[HCI_PROTO_SCO]; 488 if (hp && hp->connect_cfm) 489 hp->connect_cfm(conn, status); 490 } 491 492 static inline int hci_proto_disconn_ind(struct hci_conn *conn) 493 { 494 register struct hci_proto *hp; 495 int reason = 0x13; 496 497 hp = hci_proto[HCI_PROTO_L2CAP]; 498 if (hp && hp->disconn_ind) 499 reason = hp->disconn_ind(conn); 500 501 hp = hci_proto[HCI_PROTO_SCO]; 502 if (hp && hp->disconn_ind) 503 reason = hp->disconn_ind(conn); 504 505 return reason; 506 } 507 508 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 509 { 510 register struct hci_proto *hp; 511 512 hp = hci_proto[HCI_PROTO_L2CAP]; 513 if (hp && hp->disconn_cfm) 514 hp->disconn_cfm(conn, reason); 515 516 hp = hci_proto[HCI_PROTO_SCO]; 517 if (hp && hp->disconn_cfm) 518 hp->disconn_cfm(conn, reason); 519 } 520 521 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 522 { 523 register struct hci_proto *hp; 524 __u8 encrypt; 525 526 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 527 return; 528 529 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 530 531 hp = hci_proto[HCI_PROTO_L2CAP]; 532 if (hp && hp->security_cfm) 533 hp->security_cfm(conn, status, encrypt); 534 535 hp = hci_proto[HCI_PROTO_SCO]; 536 if (hp && hp->security_cfm) 537 hp->security_cfm(conn, status, encrypt); 538 } 539 540 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 541 { 542 register struct hci_proto *hp; 543 544 hp = hci_proto[HCI_PROTO_L2CAP]; 545 if (hp && hp->security_cfm) 546 hp->security_cfm(conn, status, encrypt); 547 548 hp = hci_proto[HCI_PROTO_SCO]; 549 if (hp && hp->security_cfm) 550 hp->security_cfm(conn, status, encrypt); 551 } 552 553 int hci_register_proto(struct hci_proto *hproto); 554 int hci_unregister_proto(struct hci_proto *hproto); 555 556 /* ----- HCI callbacks ----- */ 557 struct hci_cb { 558 struct list_head list; 559 560 char *name; 561 562 void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 563 void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 564 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 565 }; 566 567 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 568 { 569 struct list_head *p; 570 __u8 encrypt; 571 572 hci_proto_auth_cfm(conn, status); 573 574 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 575 return; 576 577 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 578 579 read_lock_bh(&hci_cb_list_lock); 580 list_for_each(p, &hci_cb_list) { 581 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 582 if (cb->security_cfm) 583 cb->security_cfm(conn, status, encrypt); 584 } 585 read_unlock_bh(&hci_cb_list_lock); 586 } 587 588 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 589 { 590 struct list_head *p; 591 592 if (conn->sec_level == BT_SECURITY_SDP) 593 conn->sec_level = BT_SECURITY_LOW; 594 595 hci_proto_encrypt_cfm(conn, status, encrypt); 596 597 read_lock_bh(&hci_cb_list_lock); 598 list_for_each(p, &hci_cb_list) { 599 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 600 if (cb->security_cfm) 601 cb->security_cfm(conn, status, encrypt); 602 } 603 read_unlock_bh(&hci_cb_list_lock); 604 } 605 606 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 607 { 608 struct list_head *p; 609 610 read_lock_bh(&hci_cb_list_lock); 611 list_for_each(p, &hci_cb_list) { 612 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 613 if (cb->key_change_cfm) 614 cb->key_change_cfm(conn, status); 615 } 616 read_unlock_bh(&hci_cb_list_lock); 617 } 618 619 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 620 { 621 struct list_head *p; 622 623 read_lock_bh(&hci_cb_list_lock); 624 list_for_each(p, &hci_cb_list) { 625 struct hci_cb *cb = list_entry(p, struct hci_cb, list); 626 if (cb->role_switch_cfm) 627 cb->role_switch_cfm(conn, status, role); 628 } 629 read_unlock_bh(&hci_cb_list_lock); 630 } 631 632 int hci_register_cb(struct hci_cb *hcb); 633 int hci_unregister_cb(struct hci_cb *hcb); 634 635 int hci_register_notifier(struct notifier_block *nb); 636 int hci_unregister_notifier(struct notifier_block *nb); 637 638 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 639 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 640 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 641 642 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 643 644 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 645 646 /* ----- HCI Sockets ----- */ 647 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 648 649 /* HCI info for socket */ 650 #define hci_pi(sk) ((struct hci_pinfo *) sk) 651 652 struct hci_pinfo { 653 struct bt_sock bt; 654 struct hci_dev *hdev; 655 struct hci_filter filter; 656 __u32 cmsg_mask; 657 }; 658 659 /* HCI security filter */ 660 #define HCI_SFLT_MAX_OGF 5 661 662 struct hci_sec_filter { 663 __u32 type_mask; 664 __u32 event_mask[2]; 665 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 666 }; 667 668 /* ----- HCI requests ----- */ 669 #define HCI_REQ_DONE 0 670 #define HCI_REQ_PEND 1 671 #define HCI_REQ_CANCELED 2 672 673 #define hci_req_lock(d) mutex_lock(&d->req_lock) 674 #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 675 676 void hci_req_complete(struct hci_dev *hdev, int result); 677 678 #endif /* __HCI_CORE_H */ 679