include/net/bluetooth/hci_core.h

   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 };
  64
  65 struct bdaddr_list {
  66         struct list_head list;
  67         bdaddr_t bdaddr;
  68 };
  69 #define NUM_REASSEMBLY 4
  70 struct hci_dev {
  71         struct list_head list;
  72         spinlock_t      lock;
  73         atomic_t        refcnt;
  74
  75         char            name[8];
  76         unsigned long   flags;
  77         __u16           id;
  78         __u8            bus;
  79         __u8            dev_type;
  80         bdaddr_t        bdaddr;
  81         __u8            dev_name[248];
  82         __u8            dev_class[3];
  83         __u8            features[8];
  84         __u8            commands[64];
  85         __u8            ssp_mode;
  86         __u8            hci_ver;
  87         __u16           hci_rev;
  88         __u16           manufacturer;
  89         __u16           voice_setting;
  90
  91         __u16           pkt_type;
  92         __u16           esco_type;
  93         __u16           link_policy;
  94         __u16           link_mode;
  95
  96         __u32           idle_timeout;
  97         __u16           sniff_min_interval;
  98         __u16           sniff_max_interval;
  99
 100         unsigned long   quirks;
 101
 102         atomic_t        cmd_cnt;
 103         unsigned int    acl_cnt;
 104         unsigned int    sco_cnt;
 105
 106         unsigned int    acl_mtu;
 107         unsigned int    sco_mtu;
 108         unsigned int    acl_pkts;
 109         unsigned int    sco_pkts;
 110
 111         unsigned long   cmd_last_tx;
 112         unsigned long   acl_last_tx;
 113         unsigned long   sco_last_tx;
 114
 115         struct workqueue_struct *workqueue;
 116
 117         struct tasklet_struct   cmd_task;
 118         struct tasklet_struct   rx_task;
 119         struct tasklet_struct   tx_task;
 120
 121         struct sk_buff_head     rx_q;
 122         struct sk_buff_head     raw_q;
 123         struct sk_buff_head     cmd_q;
 124
 125         struct sk_buff          *sent_cmd;
 126         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 127
 128         struct mutex            req_lock;
 129         wait_queue_head_t       req_wait_q;
 130         __u32                   req_status;
 131         __u32                   req_result;
 132         __u16                   req_last_cmd;
 133
 134         struct inquiry_cache    inq_cache;
 135         struct hci_conn_hash    conn_hash;
 136         struct list_head        blacklist;
 137
 138         struct hci_dev_stats    stat;
 139
 140         struct sk_buff_head     driver_init;
 141
 142         void                    *driver_data;
 143         void                    *core_data;
 144
 145         atomic_t                promisc;
 146
 147         struct dentry           *debugfs;
 148
 149         struct device           *parent;
 150         struct device           dev;
 151
 152         struct rfkill           *rfkill;
 153
 154         struct module           *owner;
 155
 156         int (*open)(struct hci_dev *hdev);
 157         int (*close)(struct hci_dev *hdev);
 158         int (*flush)(struct hci_dev *hdev);
 159         int (*send)(struct sk_buff *skb);
 160         void (*destruct)(struct hci_dev *hdev);
 161         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 162         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 163 };
 164
 165 struct hci_conn {
 166         struct list_head list;
 167
 168         atomic_t         refcnt;
 169         spinlock_t       lock;
 170
 171         bdaddr_t         dst;
 172         __u16            handle;
 173         __u16            state;
 174         __u8             mode;
 175         __u8             type;
 176         __u8             out;
 177         __u8             attempt;
 178         __u8             dev_class[3];
 179         __u8             features[8];
 180         __u8             ssp_mode;
 181         __u16            interval;
 182         __u16            pkt_type;
 183         __u16            link_policy;
 184         __u32            link_mode;
 185         __u8             auth_type;
 186         __u8             sec_level;
 187         __u8             pending_sec_level;
 188         __u8             power_save;
 189         __u16            disc_timeout;
 190         unsigned long    pend;
 191
 192         unsigned int     sent;
 193
 194         struct sk_buff_head data_q;
 195
 196         struct timer_list disc_timer;
 197         struct timer_list idle_timer;
 198
 199         struct work_struct work_add;
 200         struct work_struct work_del;
 201
 202         struct device   dev;
 203         atomic_t        devref;
 204
 205         struct hci_dev  *hdev;
 206         void            *l2cap_data;
 207         void            *sco_data;
 208         void            *priv;
 209
 210         struct hci_conn *link;
 211 };
 212
 213 extern struct hci_proto *hci_proto[];
 214 extern struct list_head hci_dev_list;
 215 extern struct list_head hci_cb_list;
 216 extern rwlock_t hci_dev_list_lock;
 217 extern rwlock_t hci_cb_list_lock;
 218
 219 /* ----- Inquiry cache ----- */
 220 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 221 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 222
 223 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 224 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 225 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 226 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 227
 228 static inline void inquiry_cache_init(struct hci_dev *hdev)
 229 {
 230         struct inquiry_cache *c = &hdev->inq_cache;
 231         spin_lock_init(&c->lock);
 232         c->list = NULL;
 233 }
 234
 235 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 236 {
 237         struct inquiry_cache *c = &hdev->inq_cache;
 238         return c->list == NULL;
 239 }
 240
 241 static inline long inquiry_cache_age(struct hci_dev *hdev)
 242 {
 243         struct inquiry_cache *c = &hdev->inq_cache;
 244         return jiffies - c->timestamp;
 245 }
 246
 247 static inline long inquiry_entry_age(struct inquiry_entry *e)
 248 {
 249         return jiffies - e->timestamp;
 250 }
 251
 252 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 253 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 254
 255 /* ----- HCI Connections ----- */
 256 enum {
 257         HCI_CONN_AUTH_PEND,
 258         HCI_CONN_ENCRYPT_PEND,
 259         HCI_CONN_RSWITCH_PEND,
 260         HCI_CONN_MODE_CHANGE_PEND,
 261         HCI_CONN_SCO_SETUP_PEND,
 262 };
 263
 264 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 265 {
 266         struct hci_conn_hash *h = &hdev->conn_hash;
 267         INIT_LIST_HEAD(&h->list);
 268         spin_lock_init(&h->lock);
 269         h->acl_num = 0;
 270         h->sco_num = 0;
 271 }
 272
 273 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 274 {
 275         struct hci_conn_hash *h = &hdev->conn_hash;
 276         list_add(&c->list, &h->list);
 277         if (c->type == ACL_LINK)
 278                 h->acl_num++;
 279         else
 280                 h->sco_num++;
 281 }
 282
 283 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 284 {
 285         struct hci_conn_hash *h = &hdev->conn_hash;
 286         list_del(&c->list);
 287         if (c->type == ACL_LINK)
 288                 h->acl_num--;
 289         else
 290                 h->sco_num--;
 291 }
 292
 293 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 294                                         __u16 handle)
 295 {
 296         struct hci_conn_hash *h = &hdev->conn_hash;
 297         struct list_head *p;
 298         struct hci_conn  *c;
 299
 300         list_for_each(p, &h->list) {
 301                 c = list_entry(p, struct hci_conn, list);
 302                 if (c->handle == handle)
 303                         return c;
 304         }
 305         return NULL;
 306 }
 307
 308 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 309                                         __u8 type, bdaddr_t *ba)
 310 {
 311         struct hci_conn_hash *h = &hdev->conn_hash;
 312         struct list_head *p;
 313         struct hci_conn  *c;
 314
 315         list_for_each(p, &h->list) {
 316                 c = list_entry(p, struct hci_conn, list);
 317                 if (c->type == type && !bacmp(&c->dst, ba))
 318                         return c;
 319         }
 320         return NULL;
 321 }
 322
 323 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 324                                         __u8 type, __u16 state)
 325 {
 326         struct hci_conn_hash *h = &hdev->conn_hash;
 327         struct list_head *p;
 328         struct hci_conn  *c;
 329
 330         list_for_each(p, &h->list) {
 331                 c = list_entry(p, struct hci_conn, list);
 332                 if (c->type == type && c->state == state)
 333                         return c;
 334         }
 335         return NULL;
 336 }
 337
 338 void hci_acl_connect(struct hci_conn *conn);
 339 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 340 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 341 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 342 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 343
 344 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 345 int hci_conn_del(struct hci_conn *conn);
 346 void hci_conn_hash_flush(struct hci_dev *hdev);
 347 void hci_conn_check_pending(struct hci_dev *hdev);
 348
 349 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 350 int hci_conn_check_link_mode(struct hci_conn *conn);
 351 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 352 int hci_conn_change_link_key(struct hci_conn *conn);
 353 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 354
 355 void hci_conn_enter_active_mode(struct hci_conn *conn);
 356 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 357
 358 void hci_conn_hold_device(struct hci_conn *conn);
 359 void hci_conn_put_device(struct hci_conn *conn);
 360
 361 static inline void hci_conn_hold(struct hci_conn *conn)
 362 {
 363         atomic_inc(&conn->refcnt);
 364         del_timer(&conn->disc_timer);
 365 }
 366
 367 static inline void hci_conn_put(struct hci_conn *conn)
 368 {
 369         if (atomic_dec_and_test(&conn->refcnt)) {
 370                 unsigned long timeo;
 371                 if (conn->type == ACL_LINK) {
 372                         del_timer(&conn->idle_timer);
 373                         if (conn->state == BT_CONNECTED) {
 374                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 375                                 if (!conn->out)
 376                                         timeo *= 2;
 377                         } else
 378                                 timeo = msecs_to_jiffies(10);
 379                 } else
 380                         timeo = msecs_to_jiffies(10);
 381                 mod_timer(&conn->disc_timer, jiffies + timeo);
 382         }
 383 }
 384
 385 /* ----- HCI Devices ----- */
 386 static inline void __hci_dev_put(struct hci_dev *d)
 387 {
 388         if (atomic_dec_and_test(&d->refcnt))
 389                 d->destruct(d);
 390 }
 391
 392 static inline void hci_dev_put(struct hci_dev *d)
 393 {
 394         __hci_dev_put(d);
 395         module_put(d->owner);
 396 }
 397
 398 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 399 {
 400         atomic_inc(&d->refcnt);
 401         return d;
 402 }
 403
 404 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 405 {
 406         if (try_module_get(d->owner))
 407                 return __hci_dev_hold(d);
 408         return NULL;
 409 }
 410
 411 #define hci_dev_lock(d)         spin_lock(&d->lock)
 412 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 413 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 414 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 415
 416 struct hci_dev *hci_dev_get(int index);
 417 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 418
 419 struct hci_dev *hci_alloc_dev(void);
 420 void hci_free_dev(struct hci_dev *hdev);
 421 int hci_register_dev(struct hci_dev *hdev);
 422 int hci_unregister_dev(struct hci_dev *hdev);
 423 int hci_suspend_dev(struct hci_dev *hdev);
 424 int hci_resume_dev(struct hci_dev *hdev);
 425 int hci_dev_open(__u16 dev);
 426 int hci_dev_close(__u16 dev);
 427 int hci_dev_reset(__u16 dev);
 428 int hci_dev_reset_stat(__u16 dev);
 429 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 430 int hci_get_dev_list(void __user *arg);
 431 int hci_get_dev_info(void __user *arg);
 432 int hci_get_conn_list(void __user *arg);
 433 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 434 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 435 int hci_inquiry(void __user *arg);
 436
 437 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 438 int hci_blacklist_clear(struct hci_dev *hdev);
 439
 440 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 441
 442 int hci_recv_frame(struct sk_buff *skb);
 443 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 444 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 445
 446 int hci_register_sysfs(struct hci_dev *hdev);
 447 void hci_unregister_sysfs(struct hci_dev *hdev);
 448 void hci_conn_init_sysfs(struct hci_conn *conn);
 449 void hci_conn_add_sysfs(struct hci_conn *conn);
 450 void hci_conn_del_sysfs(struct hci_conn *conn);
 451
 452 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 453
 454 /* ----- LMP capabilities ----- */
 455 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 456 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 457 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 458 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 459 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 460 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 461
 462 /* ----- HCI protocols ----- */
 463 struct hci_proto {
 464         char            *name;
 465         unsigned int    id;
 466         unsigned long   flags;
 467
 468         void            *priv;
 469
 470         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 471         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 472         int (*disconn_ind)      (struct hci_conn *conn);
 473         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 474         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 475         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 476         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 477 };
 478
 479 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 480 {
 481         register struct hci_proto *hp;
 482         int mask = 0;
 483
 484         hp = hci_proto[HCI_PROTO_L2CAP];
 485         if (hp && hp->connect_ind)
 486                 mask |= hp->connect_ind(hdev, bdaddr, type);
 487
 488         hp = hci_proto[HCI_PROTO_SCO];
 489         if (hp && hp->connect_ind)
 490                 mask |= hp->connect_ind(hdev, bdaddr, type);
 491
 492         return mask;
 493 }
 494
 495 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 496 {
 497         register struct hci_proto *hp;
 498
 499         hp = hci_proto[HCI_PROTO_L2CAP];
 500         if (hp && hp->connect_cfm)
 501                 hp->connect_cfm(conn, status);
 502
 503         hp = hci_proto[HCI_PROTO_SCO];
 504         if (hp && hp->connect_cfm)
 505                 hp->connect_cfm(conn, status);
 506 }
 507
 508 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 509 {
 510         register struct hci_proto *hp;
 511         int reason = 0x13;
 512
 513         hp = hci_proto[HCI_PROTO_L2CAP];
 514         if (hp && hp->disconn_ind)
 515                 reason = hp->disconn_ind(conn);
 516
 517         hp = hci_proto[HCI_PROTO_SCO];
 518         if (hp && hp->disconn_ind)
 519                 reason = hp->disconn_ind(conn);
 520
 521         return reason;
 522 }
 523
 524 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 525 {
 526         register struct hci_proto *hp;
 527
 528         hp = hci_proto[HCI_PROTO_L2CAP];
 529         if (hp && hp->disconn_cfm)
 530                 hp->disconn_cfm(conn, reason);
 531
 532         hp = hci_proto[HCI_PROTO_SCO];
 533         if (hp && hp->disconn_cfm)
 534                 hp->disconn_cfm(conn, reason);
 535 }
 536
 537 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 538 {
 539         register struct hci_proto *hp;
 540         __u8 encrypt;
 541
 542         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 543                 return;
 544
 545         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 546
 547         hp = hci_proto[HCI_PROTO_L2CAP];
 548         if (hp && hp->security_cfm)
 549                 hp->security_cfm(conn, status, encrypt);
 550
 551         hp = hci_proto[HCI_PROTO_SCO];
 552         if (hp && hp->security_cfm)
 553                 hp->security_cfm(conn, status, encrypt);
 554 }
 555
 556 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 557 {
 558         register struct hci_proto *hp;
 559
 560         hp = hci_proto[HCI_PROTO_L2CAP];
 561         if (hp && hp->security_cfm)
 562                 hp->security_cfm(conn, status, encrypt);
 563
 564         hp = hci_proto[HCI_PROTO_SCO];
 565         if (hp && hp->security_cfm)
 566                 hp->security_cfm(conn, status, encrypt);
 567 }
 568
 569 int hci_register_proto(struct hci_proto *hproto);
 570 int hci_unregister_proto(struct hci_proto *hproto);
 571
 572 /* ----- HCI callbacks ----- */
 573 struct hci_cb {
 574         struct list_head list;
 575
 576         char *name;
 577
 578         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 579         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 580         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 581 };
 582
 583 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 584 {
 585         struct list_head *p;
 586         __u8 encrypt;
 587
 588         hci_proto_auth_cfm(conn, status);
 589
 590         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 591                 return;
 592
 593         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 594
 595         read_lock_bh(&hci_cb_list_lock);
 596         list_for_each(p, &hci_cb_list) {
 597                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 598                 if (cb->security_cfm)
 599                         cb->security_cfm(conn, status, encrypt);
 600         }
 601         read_unlock_bh(&hci_cb_list_lock);
 602 }
 603
 604 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 605 {
 606         struct list_head *p;
 607
 608         if (conn->sec_level == BT_SECURITY_SDP)
 609                 conn->sec_level = BT_SECURITY_LOW;
 610
 611         hci_proto_encrypt_cfm(conn, status, encrypt);
 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_key_change_cfm(struct hci_conn *conn, __u8 status)
 623 {
 624         struct list_head *p;
 625
 626         read_lock_bh(&hci_cb_list_lock);
 627         list_for_each(p, &hci_cb_list) {
 628                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 629                 if (cb->key_change_cfm)
 630                         cb->key_change_cfm(conn, status);
 631         }
 632         read_unlock_bh(&hci_cb_list_lock);
 633 }
 634
 635 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 636 {
 637         struct list_head *p;
 638
 639         read_lock_bh(&hci_cb_list_lock);
 640         list_for_each(p, &hci_cb_list) {
 641                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 642                 if (cb->role_switch_cfm)
 643                         cb->role_switch_cfm(conn, status, role);
 644         }
 645         read_unlock_bh(&hci_cb_list_lock);
 646 }
 647
 648 int hci_register_cb(struct hci_cb *hcb);
 649 int hci_unregister_cb(struct hci_cb *hcb);
 650
 651 int hci_register_notifier(struct notifier_block *nb);
 652 int hci_unregister_notifier(struct notifier_block *nb);
 653
 654 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 655 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 656 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 657
 658 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 659
 660 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 661
 662 /* ----- HCI Sockets ----- */
 663 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
 664
 665 /* Management interface */
 666 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 667 int mgmt_index_added(u16 index);
 668 int mgmt_index_removed(u16 index);
 669
 670 /* HCI info for socket */
 671 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 672
 673 struct hci_pinfo {
 674         struct bt_sock    bt;
 675         struct hci_dev    *hdev;
 676         struct hci_filter filter;
 677         __u32             cmsg_mask;
 678         unsigned short   channel;
 679 };
 680
 681 /* HCI security filter */
 682 #define HCI_SFLT_MAX_OGF  5
 683
 684 struct hci_sec_filter {
 685         __u32 type_mask;
 686         __u32 event_mask[2];
 687         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 688 };
 689
 690 /* ----- HCI requests ----- */
 691 #define HCI_REQ_DONE      0
 692 #define HCI_REQ_PEND      1
 693 #define HCI_REQ_CANCELED  2
 694
 695 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 696 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 697
 698 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 699
 700 #endif /* __HCI_CORE_H */