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 work_struct      power_on;
 118         struct work_struct      power_off;
 119         struct timer_list       off_timer;
 120
 121         struct tasklet_struct   cmd_task;
 122         struct tasklet_struct   rx_task;
 123         struct tasklet_struct   tx_task;
 124
 125         struct sk_buff_head     rx_q;
 126         struct sk_buff_head     raw_q;
 127         struct sk_buff_head     cmd_q;
 128
 129         struct sk_buff          *sent_cmd;
 130         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 131
 132         struct mutex            req_lock;
 133         wait_queue_head_t       req_wait_q;
 134         __u32                   req_status;
 135         __u32                   req_result;
 136         __u16                   req_last_cmd;
 137
 138         struct inquiry_cache    inq_cache;
 139         struct hci_conn_hash    conn_hash;
 140         struct list_head        blacklist;
 141
 142         struct hci_dev_stats    stat;
 143
 144         struct sk_buff_head     driver_init;
 145
 146         void                    *driver_data;
 147         void                    *core_data;
 148
 149         atomic_t                promisc;
 150
 151         struct dentry           *debugfs;
 152
 153         struct device           *parent;
 154         struct device           dev;
 155
 156         struct rfkill           *rfkill;
 157
 158         struct module           *owner;
 159
 160         int (*open)(struct hci_dev *hdev);
 161         int (*close)(struct hci_dev *hdev);
 162         int (*flush)(struct hci_dev *hdev);
 163         int (*send)(struct sk_buff *skb);
 164         void (*destruct)(struct hci_dev *hdev);
 165         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 166         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 167 };
 168
 169 struct hci_conn {
 170         struct list_head list;
 171
 172         atomic_t         refcnt;
 173         spinlock_t       lock;
 174
 175         bdaddr_t         dst;
 176         __u16            handle;
 177         __u16            state;
 178         __u8             mode;
 179         __u8             type;
 180         __u8             out;
 181         __u8             attempt;
 182         __u8             dev_class[3];
 183         __u8             features[8];
 184         __u8             ssp_mode;
 185         __u16            interval;
 186         __u16            pkt_type;
 187         __u16            link_policy;
 188         __u32            link_mode;
 189         __u8             auth_type;
 190         __u8             sec_level;
 191         __u8             pending_sec_level;
 192         __u8             power_save;
 193         __u16            disc_timeout;
 194         unsigned long    pend;
 195
 196         unsigned int     sent;
 197
 198         struct sk_buff_head data_q;
 199
 200         struct timer_list disc_timer;
 201         struct timer_list idle_timer;
 202
 203         struct work_struct work_add;
 204         struct work_struct work_del;
 205
 206         struct device   dev;
 207         atomic_t        devref;
 208
 209         struct hci_dev  *hdev;
 210         void            *l2cap_data;
 211         void            *sco_data;
 212         void            *priv;
 213
 214         struct hci_conn *link;
 215 };
 216
 217 extern struct hci_proto *hci_proto[];
 218 extern struct list_head hci_dev_list;
 219 extern struct list_head hci_cb_list;
 220 extern rwlock_t hci_dev_list_lock;
 221 extern rwlock_t hci_cb_list_lock;
 222
 223 /* ----- Inquiry cache ----- */
 224 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 225 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 226
 227 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 228 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 229 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 230 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 231
 232 static inline void inquiry_cache_init(struct hci_dev *hdev)
 233 {
 234         struct inquiry_cache *c = &hdev->inq_cache;
 235         spin_lock_init(&c->lock);
 236         c->list = NULL;
 237 }
 238
 239 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 240 {
 241         struct inquiry_cache *c = &hdev->inq_cache;
 242         return c->list == NULL;
 243 }
 244
 245 static inline long inquiry_cache_age(struct hci_dev *hdev)
 246 {
 247         struct inquiry_cache *c = &hdev->inq_cache;
 248         return jiffies - c->timestamp;
 249 }
 250
 251 static inline long inquiry_entry_age(struct inquiry_entry *e)
 252 {
 253         return jiffies - e->timestamp;
 254 }
 255
 256 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 257 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 258
 259 /* ----- HCI Connections ----- */
 260 enum {
 261         HCI_CONN_AUTH_PEND,
 262         HCI_CONN_ENCRYPT_PEND,
 263         HCI_CONN_RSWITCH_PEND,
 264         HCI_CONN_MODE_CHANGE_PEND,
 265         HCI_CONN_SCO_SETUP_PEND,
 266 };
 267
 268 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 269 {
 270         struct hci_conn_hash *h = &hdev->conn_hash;
 271         INIT_LIST_HEAD(&h->list);
 272         spin_lock_init(&h->lock);
 273         h->acl_num = 0;
 274         h->sco_num = 0;
 275 }
 276
 277 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 278 {
 279         struct hci_conn_hash *h = &hdev->conn_hash;
 280         list_add(&c->list, &h->list);
 281         if (c->type == ACL_LINK)
 282                 h->acl_num++;
 283         else
 284                 h->sco_num++;
 285 }
 286
 287 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 288 {
 289         struct hci_conn_hash *h = &hdev->conn_hash;
 290         list_del(&c->list);
 291         if (c->type == ACL_LINK)
 292                 h->acl_num--;
 293         else
 294                 h->sco_num--;
 295 }
 296
 297 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 298                                         __u16 handle)
 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->handle == handle)
 307                         return c;
 308         }
 309         return NULL;
 310 }
 311
 312 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 313                                         __u8 type, bdaddr_t *ba)
 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 && !bacmp(&c->dst, ba))
 322                         return c;
 323         }
 324         return NULL;
 325 }
 326
 327 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 328                                         __u8 type, __u16 state)
 329 {
 330         struct hci_conn_hash *h = &hdev->conn_hash;
 331         struct list_head *p;
 332         struct hci_conn  *c;
 333
 334         list_for_each(p, &h->list) {
 335                 c = list_entry(p, struct hci_conn, list);
 336                 if (c->type == type && c->state == state)
 337                         return c;
 338         }
 339         return NULL;
 340 }
 341
 342 void hci_acl_connect(struct hci_conn *conn);
 343 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 344 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 345 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 346 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 347
 348 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 349 int hci_conn_del(struct hci_conn *conn);
 350 void hci_conn_hash_flush(struct hci_dev *hdev);
 351 void hci_conn_check_pending(struct hci_dev *hdev);
 352
 353 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 354 int hci_conn_check_link_mode(struct hci_conn *conn);
 355 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 356 int hci_conn_change_link_key(struct hci_conn *conn);
 357 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 358
 359 void hci_conn_enter_active_mode(struct hci_conn *conn);
 360 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 361
 362 void hci_conn_hold_device(struct hci_conn *conn);
 363 void hci_conn_put_device(struct hci_conn *conn);
 364
 365 static inline void hci_conn_hold(struct hci_conn *conn)
 366 {
 367         atomic_inc(&conn->refcnt);
 368         del_timer(&conn->disc_timer);
 369 }
 370
 371 static inline void hci_conn_put(struct hci_conn *conn)
 372 {
 373         if (atomic_dec_and_test(&conn->refcnt)) {
 374                 unsigned long timeo;
 375                 if (conn->type == ACL_LINK) {
 376                         del_timer(&conn->idle_timer);
 377                         if (conn->state == BT_CONNECTED) {
 378                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 379                                 if (!conn->out)
 380                                         timeo *= 2;
 381                         } else
 382                                 timeo = msecs_to_jiffies(10);
 383                 } else
 384                         timeo = msecs_to_jiffies(10);
 385                 mod_timer(&conn->disc_timer, jiffies + timeo);
 386         }
 387 }
 388
 389 /* ----- HCI Devices ----- */
 390 static inline void __hci_dev_put(struct hci_dev *d)
 391 {
 392         if (atomic_dec_and_test(&d->refcnt))
 393                 d->destruct(d);
 394 }
 395
 396 static inline void hci_dev_put(struct hci_dev *d)
 397 {
 398         __hci_dev_put(d);
 399         module_put(d->owner);
 400 }
 401
 402 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 403 {
 404         atomic_inc(&d->refcnt);
 405         return d;
 406 }
 407
 408 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 409 {
 410         if (try_module_get(d->owner))
 411                 return __hci_dev_hold(d);
 412         return NULL;
 413 }
 414
 415 #define hci_dev_lock(d)         spin_lock(&d->lock)
 416 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 417 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 418 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 419
 420 struct hci_dev *hci_dev_get(int index);
 421 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 422
 423 struct hci_dev *hci_alloc_dev(void);
 424 void hci_free_dev(struct hci_dev *hdev);
 425 int hci_register_dev(struct hci_dev *hdev);
 426 int hci_unregister_dev(struct hci_dev *hdev);
 427 int hci_suspend_dev(struct hci_dev *hdev);
 428 int hci_resume_dev(struct hci_dev *hdev);
 429 int hci_dev_open(__u16 dev);
 430 int hci_dev_close(__u16 dev);
 431 int hci_dev_reset(__u16 dev);
 432 int hci_dev_reset_stat(__u16 dev);
 433 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 434 int hci_get_dev_list(void __user *arg);
 435 int hci_get_dev_info(void __user *arg);
 436 int hci_get_conn_list(void __user *arg);
 437 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 438 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 439 int hci_inquiry(void __user *arg);
 440
 441 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 442 int hci_blacklist_clear(struct hci_dev *hdev);
 443
 444 void hci_del_off_timer(struct hci_dev *hdev);
 445
 446 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 447
 448 int hci_recv_frame(struct sk_buff *skb);
 449 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 450 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 451
 452 int hci_register_sysfs(struct hci_dev *hdev);
 453 void hci_unregister_sysfs(struct hci_dev *hdev);
 454 void hci_conn_init_sysfs(struct hci_conn *conn);
 455 void hci_conn_add_sysfs(struct hci_conn *conn);
 456 void hci_conn_del_sysfs(struct hci_conn *conn);
 457
 458 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 459
 460 /* ----- LMP capabilities ----- */
 461 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 462 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 463 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 464 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 465 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 466 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 467 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 468
 469 /* ----- HCI protocols ----- */
 470 struct hci_proto {
 471         char            *name;
 472         unsigned int    id;
 473         unsigned long   flags;
 474
 475         void            *priv;
 476
 477         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 478         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 479         int (*disconn_ind)      (struct hci_conn *conn);
 480         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 481         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 482         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 483         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 484 };
 485
 486 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 487 {
 488         register struct hci_proto *hp;
 489         int mask = 0;
 490
 491         hp = hci_proto[HCI_PROTO_L2CAP];
 492         if (hp && hp->connect_ind)
 493                 mask |= hp->connect_ind(hdev, bdaddr, type);
 494
 495         hp = hci_proto[HCI_PROTO_SCO];
 496         if (hp && hp->connect_ind)
 497                 mask |= hp->connect_ind(hdev, bdaddr, type);
 498
 499         return mask;
 500 }
 501
 502 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 503 {
 504         register struct hci_proto *hp;
 505
 506         hp = hci_proto[HCI_PROTO_L2CAP];
 507         if (hp && hp->connect_cfm)
 508                 hp->connect_cfm(conn, status);
 509
 510         hp = hci_proto[HCI_PROTO_SCO];
 511         if (hp && hp->connect_cfm)
 512                 hp->connect_cfm(conn, status);
 513 }
 514
 515 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 516 {
 517         register struct hci_proto *hp;
 518         int reason = 0x13;
 519
 520         hp = hci_proto[HCI_PROTO_L2CAP];
 521         if (hp && hp->disconn_ind)
 522                 reason = hp->disconn_ind(conn);
 523
 524         hp = hci_proto[HCI_PROTO_SCO];
 525         if (hp && hp->disconn_ind)
 526                 reason = hp->disconn_ind(conn);
 527
 528         return reason;
 529 }
 530
 531 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 532 {
 533         register struct hci_proto *hp;
 534
 535         hp = hci_proto[HCI_PROTO_L2CAP];
 536         if (hp && hp->disconn_cfm)
 537                 hp->disconn_cfm(conn, reason);
 538
 539         hp = hci_proto[HCI_PROTO_SCO];
 540         if (hp && hp->disconn_cfm)
 541                 hp->disconn_cfm(conn, reason);
 542 }
 543
 544 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 545 {
 546         register struct hci_proto *hp;
 547         __u8 encrypt;
 548
 549         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 550                 return;
 551
 552         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 553
 554         hp = hci_proto[HCI_PROTO_L2CAP];
 555         if (hp && hp->security_cfm)
 556                 hp->security_cfm(conn, status, encrypt);
 557
 558         hp = hci_proto[HCI_PROTO_SCO];
 559         if (hp && hp->security_cfm)
 560                 hp->security_cfm(conn, status, encrypt);
 561 }
 562
 563 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 564 {
 565         register struct hci_proto *hp;
 566
 567         hp = hci_proto[HCI_PROTO_L2CAP];
 568         if (hp && hp->security_cfm)
 569                 hp->security_cfm(conn, status, encrypt);
 570
 571         hp = hci_proto[HCI_PROTO_SCO];
 572         if (hp && hp->security_cfm)
 573                 hp->security_cfm(conn, status, encrypt);
 574 }
 575
 576 int hci_register_proto(struct hci_proto *hproto);
 577 int hci_unregister_proto(struct hci_proto *hproto);
 578
 579 /* ----- HCI callbacks ----- */
 580 struct hci_cb {
 581         struct list_head list;
 582
 583         char *name;
 584
 585         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 586         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 587         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 588 };
 589
 590 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 591 {
 592         struct list_head *p;
 593         __u8 encrypt;
 594
 595         hci_proto_auth_cfm(conn, status);
 596
 597         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 598                 return;
 599
 600         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 601
 602         read_lock_bh(&hci_cb_list_lock);
 603         list_for_each(p, &hci_cb_list) {
 604                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 605                 if (cb->security_cfm)
 606                         cb->security_cfm(conn, status, encrypt);
 607         }
 608         read_unlock_bh(&hci_cb_list_lock);
 609 }
 610
 611 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 612 {
 613         struct list_head *p;
 614
 615         if (conn->sec_level == BT_SECURITY_SDP)
 616                 conn->sec_level = BT_SECURITY_LOW;
 617
 618         hci_proto_encrypt_cfm(conn, status, encrypt);
 619
 620         read_lock_bh(&hci_cb_list_lock);
 621         list_for_each(p, &hci_cb_list) {
 622                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 623                 if (cb->security_cfm)
 624                         cb->security_cfm(conn, status, encrypt);
 625         }
 626         read_unlock_bh(&hci_cb_list_lock);
 627 }
 628
 629 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 630 {
 631         struct list_head *p;
 632
 633         read_lock_bh(&hci_cb_list_lock);
 634         list_for_each(p, &hci_cb_list) {
 635                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 636                 if (cb->key_change_cfm)
 637                         cb->key_change_cfm(conn, status);
 638         }
 639         read_unlock_bh(&hci_cb_list_lock);
 640 }
 641
 642 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 643 {
 644         struct list_head *p;
 645
 646         read_lock_bh(&hci_cb_list_lock);
 647         list_for_each(p, &hci_cb_list) {
 648                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 649                 if (cb->role_switch_cfm)
 650                         cb->role_switch_cfm(conn, status, role);
 651         }
 652         read_unlock_bh(&hci_cb_list_lock);
 653 }
 654
 655 int hci_register_cb(struct hci_cb *hcb);
 656 int hci_unregister_cb(struct hci_cb *hcb);
 657
 658 int hci_register_notifier(struct notifier_block *nb);
 659 int hci_unregister_notifier(struct notifier_block *nb);
 660
 661 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 662 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 663 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 664
 665 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 666
 667 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 668
 669 /* ----- HCI Sockets ----- */
 670 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 671                                                         struct sock *skip_sk);
 672
 673 /* Management interface */
 674 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 675 int mgmt_index_added(u16 index);
 676 int mgmt_index_removed(u16 index);
 677 int mgmt_powered(u16 index, u8 powered);
 678
 679 /* HCI info for socket */
 680 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 681
 682 struct hci_pinfo {
 683         struct bt_sock    bt;
 684         struct hci_dev    *hdev;
 685         struct hci_filter filter;
 686         __u32             cmsg_mask;
 687         unsigned short   channel;
 688 };
 689
 690 /* HCI security filter */
 691 #define HCI_SFLT_MAX_OGF  5
 692
 693 struct hci_sec_filter {
 694         __u32 type_mask;
 695         __u32 event_mask[2];
 696         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 697 };
 698
 699 /* ----- HCI requests ----- */
 700 #define HCI_REQ_DONE      0
 701 #define HCI_REQ_PEND      1
 702 #define HCI_REQ_CANCELED  2
 703
 704 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 705 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 706
 707 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 708
 709 #endif /* __HCI_CORE_H */