include/net/bluetooth/hci_core.h

   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            type;
  74         bdaddr_t        bdaddr;
  75         __u8            dev_name[248];
  76         __u8            dev_class[3];
  77         __u8            features[8];
  78         __u8            commands[64];
  79         __u8            ssp_mode;
  80         __u8            hci_ver;
  81         __u16           hci_rev;
  82         __u16           manufacturer;
  83         __u16           voice_setting;
  84
  85         __u16           pkt_type;
  86         __u16           esco_type;
  87         __u16           link_policy;
  88         __u16           link_mode;
  89
  90         __u32           idle_timeout;
  91         __u16           sniff_min_interval;
  92         __u16           sniff_max_interval;
  93
  94         unsigned long   quirks;
  95
  96         atomic_t        cmd_cnt;
  97         unsigned int    acl_cnt;
  98         unsigned int    sco_cnt;
  99
 100         unsigned int    acl_mtu;
 101         unsigned int    sco_mtu;
 102         unsigned int    acl_pkts;
 103         unsigned int    sco_pkts;
 104
 105         unsigned long   cmd_last_tx;
 106         unsigned long   acl_last_tx;
 107         unsigned long   sco_last_tx;
 108
 109         struct tasklet_struct   cmd_task;
 110         struct tasklet_struct   rx_task;
 111         struct tasklet_struct   tx_task;
 112
 113         struct sk_buff_head     rx_q;
 114         struct sk_buff_head     raw_q;
 115         struct sk_buff_head     cmd_q;
 116
 117         struct sk_buff          *sent_cmd;
 118         struct sk_buff          *reassembly[3];
 119
 120         struct mutex            req_lock;
 121         wait_queue_head_t       req_wait_q;
 122         __u32                   req_status;
 123         __u32                   req_result;
 124
 125         struct inquiry_cache    inq_cache;
 126         struct hci_conn_hash    conn_hash;
 127
 128         struct hci_dev_stats    stat;
 129
 130         struct sk_buff_head     driver_init;
 131
 132         void                    *driver_data;
 133         void                    *core_data;
 134
 135         atomic_t                promisc;
 136
 137         struct device           *parent;
 138         struct device           dev;
 139
 140         struct rfkill           *rfkill;
 141
 142         struct module           *owner;
 143
 144         int (*open)(struct hci_dev *hdev);
 145         int (*close)(struct hci_dev *hdev);
 146         int (*flush)(struct hci_dev *hdev);
 147         int (*send)(struct sk_buff *skb);
 148         void (*destruct)(struct hci_dev *hdev);
 149         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 150         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 151 };
 152
 153 struct hci_conn {
 154         struct list_head list;
 155
 156         atomic_t         refcnt;
 157         spinlock_t       lock;
 158
 159         bdaddr_t         dst;
 160         __u16            handle;
 161         __u16            state;
 162         __u8             mode;
 163         __u8             type;
 164         __u8             out;
 165         __u8             attempt;
 166         __u8             dev_class[3];
 167         __u8             features[8];
 168         __u8             ssp_mode;
 169         __u16            interval;
 170         __u16            pkt_type;
 171         __u16            link_policy;
 172         __u32            link_mode;
 173         __u8             auth_type;
 174         __u8             sec_level;
 175         __u8             power_save;
 176         __u16            disc_timeout;
 177         unsigned long    pend;
 178
 179         unsigned int     sent;
 180
 181         struct sk_buff_head data_q;
 182
 183         struct timer_list disc_timer;
 184         struct timer_list idle_timer;
 185
 186         struct work_struct work_add;
 187         struct work_struct work_del;
 188
 189         struct device   dev;
 190         atomic_t        devref;
 191
 192         struct hci_dev  *hdev;
 193         void            *l2cap_data;
 194         void            *sco_data;
 195         void            *priv;
 196
 197         struct hci_conn *link;
 198 };
 199
 200 extern struct hci_proto *hci_proto[];
 201 extern struct list_head hci_dev_list;
 202 extern struct list_head hci_cb_list;
 203 extern rwlock_t hci_dev_list_lock;
 204 extern rwlock_t hci_cb_list_lock;
 205
 206 /* ----- Inquiry cache ----- */
 207 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   // 30 seconds
 208 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   // 60 seconds
 209
 210 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 211 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 212 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 213 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 214
 215 static inline void inquiry_cache_init(struct hci_dev *hdev)
 216 {
 217         struct inquiry_cache *c = &hdev->inq_cache;
 218         spin_lock_init(&c->lock);
 219         c->list = NULL;
 220 }
 221
 222 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 223 {
 224         struct inquiry_cache *c = &hdev->inq_cache;
 225         return (c->list == NULL);
 226 }
 227
 228 static inline long inquiry_cache_age(struct hci_dev *hdev)
 229 {
 230         struct inquiry_cache *c = &hdev->inq_cache;
 231         return jiffies - c->timestamp;
 232 }
 233
 234 static inline long inquiry_entry_age(struct inquiry_entry *e)
 235 {
 236         return jiffies - e->timestamp;
 237 }
 238
 239 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 240 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 241
 242 /* ----- HCI Connections ----- */
 243 enum {
 244         HCI_CONN_AUTH_PEND,
 245         HCI_CONN_ENCRYPT_PEND,
 246         HCI_CONN_RSWITCH_PEND,
 247         HCI_CONN_MODE_CHANGE_PEND,
 248 };
 249
 250 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 251 {
 252         struct hci_conn_hash *h = &hdev->conn_hash;
 253         INIT_LIST_HEAD(&h->list);
 254         spin_lock_init(&h->lock);
 255         h->acl_num = 0;
 256         h->sco_num = 0;
 257 }
 258
 259 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 260 {
 261         struct hci_conn_hash *h = &hdev->conn_hash;
 262         list_add(&c->list, &h->list);
 263         if (c->type == ACL_LINK)
 264                 h->acl_num++;
 265         else
 266                 h->sco_num++;
 267 }
 268
 269 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 270 {
 271         struct hci_conn_hash *h = &hdev->conn_hash;
 272         list_del(&c->list);
 273         if (c->type == ACL_LINK)
 274                 h->acl_num--;
 275         else
 276                 h->sco_num--;
 277 }
 278
 279 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 280                                         __u16 handle)
 281 {
 282         struct hci_conn_hash *h = &hdev->conn_hash;
 283         struct list_head *p;
 284         struct hci_conn  *c;
 285
 286         list_for_each(p, &h->list) {
 287                 c = list_entry(p, struct hci_conn, list);
 288                 if (c->handle == handle)
 289                         return c;
 290         }
 291         return NULL;
 292 }
 293
 294 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 295                                         __u8 type, bdaddr_t *ba)
 296 {
 297         struct hci_conn_hash *h = &hdev->conn_hash;
 298         struct list_head *p;
 299         struct hci_conn  *c;
 300
 301         list_for_each(p, &h->list) {
 302                 c = list_entry(p, struct hci_conn, list);
 303                 if (c->type == type && !bacmp(&c->dst, ba))
 304                         return c;
 305         }
 306         return NULL;
 307 }
 308
 309 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 310                                         __u8 type, __u16 state)
 311 {
 312         struct hci_conn_hash *h = &hdev->conn_hash;
 313         struct list_head *p;
 314         struct hci_conn  *c;
 315
 316         list_for_each(p, &h->list) {
 317                 c = list_entry(p, struct hci_conn, list);
 318                 if (c->type == type && c->state == state)
 319                         return c;
 320         }
 321         return NULL;
 322 }
 323
 324 void hci_acl_connect(struct hci_conn *conn);
 325 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 326 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 327 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 328
 329 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 330 int hci_conn_del(struct hci_conn *conn);
 331 void hci_conn_hash_flush(struct hci_dev *hdev);
 332 void hci_conn_check_pending(struct hci_dev *hdev);
 333
 334 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 335 int hci_conn_check_link_mode(struct hci_conn *conn);
 336 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 337 int hci_conn_change_link_key(struct hci_conn *conn);
 338 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 339
 340 void hci_conn_enter_active_mode(struct hci_conn *conn);
 341 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 342
 343 void hci_conn_hold_device(struct hci_conn *conn);
 344 void hci_conn_put_device(struct hci_conn *conn);
 345
 346 static inline void hci_conn_hold(struct hci_conn *conn)
 347 {
 348         atomic_inc(&conn->refcnt);
 349         del_timer(&conn->disc_timer);
 350 }
 351
 352 static inline void hci_conn_put(struct hci_conn *conn)
 353 {
 354         if (atomic_dec_and_test(&conn->refcnt)) {
 355                 unsigned long timeo;
 356                 if (conn->type == ACL_LINK) {
 357                         del_timer(&conn->idle_timer);
 358                         if (conn->state == BT_CONNECTED) {
 359                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 360                                 if (!conn->out)
 361                                         timeo *= 2;
 362                         } else
 363                                 timeo = msecs_to_jiffies(10);
 364                 } else
 365                         timeo = msecs_to_jiffies(10);
 366                 mod_timer(&conn->disc_timer, jiffies + timeo);
 367         }
 368 }
 369
 370 /* ----- HCI tasks ----- */
 371 static inline void hci_sched_cmd(struct hci_dev *hdev)
 372 {
 373         tasklet_schedule(&hdev->cmd_task);
 374 }
 375
 376 static inline void hci_sched_rx(struct hci_dev *hdev)
 377 {
 378         tasklet_schedule(&hdev->rx_task);
 379 }
 380
 381 static inline void hci_sched_tx(struct hci_dev *hdev)
 382 {
 383         tasklet_schedule(&hdev->tx_task);
 384 }
 385
 386 /* ----- HCI Devices ----- */
 387 static inline void __hci_dev_put(struct hci_dev *d)
 388 {
 389         if (atomic_dec_and_test(&d->refcnt))
 390                 d->destruct(d);
 391 }
 392
 393 static inline void hci_dev_put(struct hci_dev *d)
 394 {
 395         __hci_dev_put(d);
 396         module_put(d->owner);
 397 }
 398
 399 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 400 {
 401         atomic_inc(&d->refcnt);
 402         return d;
 403 }
 404
 405 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 406 {
 407         if (try_module_get(d->owner))
 408                 return __hci_dev_hold(d);
 409         return NULL;
 410 }
 411
 412 #define hci_dev_lock(d)         spin_lock(&d->lock)
 413 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 414 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 415 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 416
 417 struct hci_dev *hci_dev_get(int index);
 418 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 419
 420 struct hci_dev *hci_alloc_dev(void);
 421 void hci_free_dev(struct hci_dev *hdev);
 422 int hci_register_dev(struct hci_dev *hdev);
 423 int hci_unregister_dev(struct hci_dev *hdev);
 424 int hci_suspend_dev(struct hci_dev *hdev);
 425 int hci_resume_dev(struct hci_dev *hdev);
 426 int hci_dev_open(__u16 dev);
 427 int hci_dev_close(__u16 dev);
 428 int hci_dev_reset(__u16 dev);
 429 int hci_dev_reset_stat(__u16 dev);
 430 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 431 int hci_get_dev_list(void __user *arg);
 432 int hci_get_dev_info(void __user *arg);
 433 int hci_get_conn_list(void __user *arg);
 434 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 435 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 436 int hci_inquiry(void __user *arg);
 437
 438 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 439
 440 /* Receive frame from HCI drivers */
 441 static inline int hci_recv_frame(struct sk_buff *skb)
 442 {
 443         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 444         if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 445                         && !test_bit(HCI_INIT, &hdev->flags))) {
 446                 kfree_skb(skb);
 447                 return -ENXIO;
 448         }
 449
 450         /* Incomming skb */
 451         bt_cb(skb)->incoming = 1;
 452
 453         /* Time stamp */
 454         __net_timestamp(skb);
 455
 456         /* Queue frame for rx task */
 457         skb_queue_tail(&hdev->rx_q, skb);
 458         hci_sched_rx(hdev);
 459         return 0;
 460 }
 461
 462 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 463
 464 int hci_register_sysfs(struct hci_dev *hdev);
 465 void hci_unregister_sysfs(struct hci_dev *hdev);
 466 void hci_conn_init_sysfs(struct hci_conn *conn);
 467 void hci_conn_add_sysfs(struct hci_conn *conn);
 468 void hci_conn_del_sysfs(struct hci_conn *conn);
 469
 470 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 471
 472 /* ----- LMP capabilities ----- */
 473 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 474 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 475 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 476 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 477 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 478 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 479
 480 /* ----- HCI protocols ----- */
 481 struct hci_proto {
 482         char            *name;
 483         unsigned int    id;
 484         unsigned long   flags;
 485
 486         void            *priv;
 487
 488         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 489         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 490         int (*disconn_ind)      (struct hci_conn *conn);
 491         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 492         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 493         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 494         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 495 };
 496
 497 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 498 {
 499         register struct hci_proto *hp;
 500         int mask = 0;
 501
 502         hp = hci_proto[HCI_PROTO_L2CAP];
 503         if (hp && hp->connect_ind)
 504                 mask |= hp->connect_ind(hdev, bdaddr, type);
 505
 506         hp = hci_proto[HCI_PROTO_SCO];
 507         if (hp && hp->connect_ind)
 508                 mask |= hp->connect_ind(hdev, bdaddr, type);
 509
 510         return mask;
 511 }
 512
 513 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 514 {
 515         register struct hci_proto *hp;
 516
 517         hp = hci_proto[HCI_PROTO_L2CAP];
 518         if (hp && hp->connect_cfm)
 519                 hp->connect_cfm(conn, status);
 520
 521         hp = hci_proto[HCI_PROTO_SCO];
 522         if (hp && hp->connect_cfm)
 523                 hp->connect_cfm(conn, status);
 524 }
 525
 526 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 527 {
 528         register struct hci_proto *hp;
 529         int reason = 0x13;
 530
 531         hp = hci_proto[HCI_PROTO_L2CAP];
 532         if (hp && hp->disconn_ind)
 533                 reason = hp->disconn_ind(conn);
 534
 535         hp = hci_proto[HCI_PROTO_SCO];
 536         if (hp && hp->disconn_ind)
 537                 reason = hp->disconn_ind(conn);
 538
 539         return reason;
 540 }
 541
 542 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 543 {
 544         register struct hci_proto *hp;
 545
 546         hp = hci_proto[HCI_PROTO_L2CAP];
 547         if (hp && hp->disconn_cfm)
 548                 hp->disconn_cfm(conn, reason);
 549
 550         hp = hci_proto[HCI_PROTO_SCO];
 551         if (hp && hp->disconn_cfm)
 552                 hp->disconn_cfm(conn, reason);
 553 }
 554
 555 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 556 {
 557         register struct hci_proto *hp;
 558         __u8 encrypt;
 559
 560         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 561                 return;
 562
 563         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 564
 565         hp = hci_proto[HCI_PROTO_L2CAP];
 566         if (hp && hp->security_cfm)
 567                 hp->security_cfm(conn, status, encrypt);
 568
 569         hp = hci_proto[HCI_PROTO_SCO];
 570         if (hp && hp->security_cfm)
 571                 hp->security_cfm(conn, status, encrypt);
 572 }
 573
 574 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 575 {
 576         register struct hci_proto *hp;
 577
 578         hp = hci_proto[HCI_PROTO_L2CAP];
 579         if (hp && hp->security_cfm)
 580                 hp->security_cfm(conn, status, encrypt);
 581
 582         hp = hci_proto[HCI_PROTO_SCO];
 583         if (hp && hp->security_cfm)
 584                 hp->security_cfm(conn, status, encrypt);
 585 }
 586
 587 int hci_register_proto(struct hci_proto *hproto);
 588 int hci_unregister_proto(struct hci_proto *hproto);
 589
 590 /* ----- HCI callbacks ----- */
 591 struct hci_cb {
 592         struct list_head list;
 593
 594         char *name;
 595
 596         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 597         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 598         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 599 };
 600
 601 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 602 {
 603         struct list_head *p;
 604         __u8 encrypt;
 605
 606         hci_proto_auth_cfm(conn, status);
 607
 608         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 609                 return;
 610
 611         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 612
 613         read_lock_bh(&hci_cb_list_lock);
 614         list_for_each(p, &hci_cb_list) {
 615                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 616                 if (cb->security_cfm)
 617                         cb->security_cfm(conn, status, encrypt);
 618         }
 619         read_unlock_bh(&hci_cb_list_lock);
 620 }
 621
 622 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 623 {
 624         struct list_head *p;
 625
 626         if (conn->sec_level == BT_SECURITY_SDP)
 627                 conn->sec_level = BT_SECURITY_LOW;
 628
 629         hci_proto_encrypt_cfm(conn, status, encrypt);
 630
 631         read_lock_bh(&hci_cb_list_lock);
 632         list_for_each(p, &hci_cb_list) {
 633                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 634                 if (cb->security_cfm)
 635                         cb->security_cfm(conn, status, encrypt);
 636         }
 637         read_unlock_bh(&hci_cb_list_lock);
 638 }
 639
 640 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 641 {
 642         struct list_head *p;
 643
 644         read_lock_bh(&hci_cb_list_lock);
 645         list_for_each(p, &hci_cb_list) {
 646                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 647                 if (cb->key_change_cfm)
 648                         cb->key_change_cfm(conn, status);
 649         }
 650         read_unlock_bh(&hci_cb_list_lock);
 651 }
 652
 653 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 654 {
 655         struct list_head *p;
 656
 657         read_lock_bh(&hci_cb_list_lock);
 658         list_for_each(p, &hci_cb_list) {
 659                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 660                 if (cb->role_switch_cfm)
 661                         cb->role_switch_cfm(conn, status, role);
 662         }
 663         read_unlock_bh(&hci_cb_list_lock);
 664 }
 665
 666 int hci_register_cb(struct hci_cb *hcb);
 667 int hci_unregister_cb(struct hci_cb *hcb);
 668
 669 int hci_register_notifier(struct notifier_block *nb);
 670 int hci_unregister_notifier(struct notifier_block *nb);
 671
 672 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 673 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 674 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 675
 676 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 677
 678 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 679
 680 /* ----- HCI Sockets ----- */
 681 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
 682
 683 /* HCI info for socket */
 684 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 685
 686 struct hci_pinfo {
 687         struct bt_sock    bt;
 688         struct hci_dev    *hdev;
 689         struct hci_filter filter;
 690         __u32             cmsg_mask;
 691 };
 692
 693 /* HCI security filter */
 694 #define HCI_SFLT_MAX_OGF  5
 695
 696 struct hci_sec_filter {
 697         __u32 type_mask;
 698         __u32 event_mask[2];
 699         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 700 };
 701
 702 /* ----- HCI requests ----- */
 703 #define HCI_REQ_DONE      0
 704 #define HCI_REQ_PEND      1
 705 #define HCI_REQ_CANCELED  2
 706
 707 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 708 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 709
 710 void hci_req_complete(struct hci_dev *hdev, int result);
 711
 712 #endif /* __HCI_CORE_H */