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 semaphore        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
 191         struct hci_dev  *hdev;
 192         void            *l2cap_data;
 193         void            *sco_data;
 194         void            *priv;
 195
 196         struct hci_conn *link;
 197 };
 198
 199 extern struct hci_proto *hci_proto[];
 200 extern struct list_head hci_dev_list;
 201 extern struct list_head hci_cb_list;
 202 extern rwlock_t hci_dev_list_lock;
 203 extern rwlock_t hci_cb_list_lock;
 204
 205 /* ----- Inquiry cache ----- */
 206 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   // 30 seconds
 207 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   // 60 seconds
 208
 209 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 210 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 211 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 212 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 213
 214 static inline void inquiry_cache_init(struct hci_dev *hdev)
 215 {
 216         struct inquiry_cache *c = &hdev->inq_cache;
 217         spin_lock_init(&c->lock);
 218         c->list = NULL;
 219 }
 220
 221 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 222 {
 223         struct inquiry_cache *c = &hdev->inq_cache;
 224         return (c->list == NULL);
 225 }
 226
 227 static inline long inquiry_cache_age(struct hci_dev *hdev)
 228 {
 229         struct inquiry_cache *c = &hdev->inq_cache;
 230         return jiffies - c->timestamp;
 231 }
 232
 233 static inline long inquiry_entry_age(struct inquiry_entry *e)
 234 {
 235         return jiffies - e->timestamp;
 236 }
 237
 238 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 239 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 240
 241 /* ----- HCI Connections ----- */
 242 enum {
 243         HCI_CONN_AUTH_PEND,
 244         HCI_CONN_ENCRYPT_PEND,
 245         HCI_CONN_RSWITCH_PEND,
 246         HCI_CONN_MODE_CHANGE_PEND,
 247 };
 248
 249 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 250 {
 251         struct hci_conn_hash *h = &hdev->conn_hash;
 252         INIT_LIST_HEAD(&h->list);
 253         spin_lock_init(&h->lock);
 254         h->acl_num = 0;
 255         h->sco_num = 0;
 256 }
 257
 258 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 259 {
 260         struct hci_conn_hash *h = &hdev->conn_hash;
 261         list_add(&c->list, &h->list);
 262         if (c->type == ACL_LINK)
 263                 h->acl_num++;
 264         else
 265                 h->sco_num++;
 266 }
 267
 268 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 269 {
 270         struct hci_conn_hash *h = &hdev->conn_hash;
 271         list_del(&c->list);
 272         if (c->type == ACL_LINK)
 273                 h->acl_num--;
 274         else
 275                 h->sco_num--;
 276 }
 277
 278 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 279                                         __u16 handle)
 280 {
 281         struct hci_conn_hash *h = &hdev->conn_hash;
 282         struct list_head *p;
 283         struct hci_conn  *c;
 284
 285         list_for_each(p, &h->list) {
 286                 c = list_entry(p, struct hci_conn, list);
 287                 if (c->handle == handle)
 288                         return c;
 289         }
 290         return NULL;
 291 }
 292
 293 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 294                                         __u8 type, bdaddr_t *ba)
 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->type == type && !bacmp(&c->dst, ba))
 303                         return c;
 304         }
 305         return NULL;
 306 }
 307
 308 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 309                                         __u8 type, __u16 state)
 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 && c->state == state)
 318                         return c;
 319         }
 320         return NULL;
 321 }
 322
 323 void hci_acl_connect(struct hci_conn *conn);
 324 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 325 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 326 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 327
 328 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 329 int hci_conn_del(struct hci_conn *conn);
 330 void hci_conn_hash_flush(struct hci_dev *hdev);
 331 void hci_conn_check_pending(struct hci_dev *hdev);
 332
 333 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 334 int hci_conn_check_link_mode(struct hci_conn *conn);
 335 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 336 int hci_conn_change_link_key(struct hci_conn *conn);
 337 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 338
 339 void hci_conn_enter_active_mode(struct hci_conn *conn);
 340 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 341
 342 static inline void hci_conn_hold(struct hci_conn *conn)
 343 {
 344         atomic_inc(&conn->refcnt);
 345         del_timer(&conn->disc_timer);
 346 }
 347
 348 static inline void hci_conn_put(struct hci_conn *conn)
 349 {
 350         if (atomic_dec_and_test(&conn->refcnt)) {
 351                 unsigned long timeo;
 352                 if (conn->type == ACL_LINK) {
 353                         del_timer(&conn->idle_timer);
 354                         if (conn->state == BT_CONNECTED) {
 355                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 356                                 if (!conn->out)
 357                                         timeo *= 2;
 358                         } else
 359                                 timeo = msecs_to_jiffies(10);
 360                 } else
 361                         timeo = msecs_to_jiffies(10);
 362                 mod_timer(&conn->disc_timer, jiffies + timeo);
 363         }
 364 }
 365
 366 /* ----- HCI tasks ----- */
 367 static inline void hci_sched_cmd(struct hci_dev *hdev)
 368 {
 369         tasklet_schedule(&hdev->cmd_task);
 370 }
 371
 372 static inline void hci_sched_rx(struct hci_dev *hdev)
 373 {
 374         tasklet_schedule(&hdev->rx_task);
 375 }
 376
 377 static inline void hci_sched_tx(struct hci_dev *hdev)
 378 {
 379         tasklet_schedule(&hdev->tx_task);
 380 }
 381
 382 /* ----- HCI Devices ----- */
 383 static inline void __hci_dev_put(struct hci_dev *d)
 384 {
 385         if (atomic_dec_and_test(&d->refcnt))
 386                 d->destruct(d);
 387 }
 388
 389 static inline void hci_dev_put(struct hci_dev *d)
 390 {
 391         __hci_dev_put(d);
 392         module_put(d->owner);
 393 }
 394
 395 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 396 {
 397         atomic_inc(&d->refcnt);
 398         return d;
 399 }
 400
 401 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 402 {
 403         if (try_module_get(d->owner))
 404                 return __hci_dev_hold(d);
 405         return NULL;
 406 }
 407
 408 #define hci_dev_lock(d)         spin_lock(&d->lock)
 409 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 410 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 411 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 412
 413 struct hci_dev *hci_dev_get(int index);
 414 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 415
 416 struct hci_dev *hci_alloc_dev(void);
 417 void hci_free_dev(struct hci_dev *hdev);
 418 int hci_register_dev(struct hci_dev *hdev);
 419 int hci_unregister_dev(struct hci_dev *hdev);
 420 int hci_suspend_dev(struct hci_dev *hdev);
 421 int hci_resume_dev(struct hci_dev *hdev);
 422 int hci_dev_open(__u16 dev);
 423 int hci_dev_close(__u16 dev);
 424 int hci_dev_reset(__u16 dev);
 425 int hci_dev_reset_stat(__u16 dev);
 426 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 427 int hci_get_dev_list(void __user *arg);
 428 int hci_get_dev_info(void __user *arg);
 429 int hci_get_conn_list(void __user *arg);
 430 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 431 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 432 int hci_inquiry(void __user *arg);
 433
 434 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 435
 436 /* Receive frame from HCI drivers */
 437 static inline int hci_recv_frame(struct sk_buff *skb)
 438 {
 439         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 440         if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 441                         && !test_bit(HCI_INIT, &hdev->flags))) {
 442                 kfree_skb(skb);
 443                 return -ENXIO;
 444         }
 445
 446         /* Incomming skb */
 447         bt_cb(skb)->incoming = 1;
 448
 449         /* Time stamp */
 450         __net_timestamp(skb);
 451
 452         /* Queue frame for rx task */
 453         skb_queue_tail(&hdev->rx_q, skb);
 454         hci_sched_rx(hdev);
 455         return 0;
 456 }
 457
 458 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 459
 460 int hci_register_sysfs(struct hci_dev *hdev);
 461 void hci_unregister_sysfs(struct hci_dev *hdev);
 462 void hci_conn_init_sysfs(struct hci_conn *conn);
 463 void hci_conn_add_sysfs(struct hci_conn *conn);
 464 void hci_conn_del_sysfs(struct hci_conn *conn);
 465
 466 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 467
 468 /* ----- LMP capabilities ----- */
 469 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 470 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 471 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 472 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 473 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 474 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 475
 476 /* ----- HCI protocols ----- */
 477 struct hci_proto {
 478         char            *name;
 479         unsigned int    id;
 480         unsigned long   flags;
 481
 482         void            *priv;
 483
 484         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 485         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 486         int (*disconn_ind)      (struct hci_conn *conn);
 487         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 488         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 489         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 490         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 491 };
 492
 493 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 494 {
 495         register struct hci_proto *hp;
 496         int mask = 0;
 497
 498         hp = hci_proto[HCI_PROTO_L2CAP];
 499         if (hp && hp->connect_ind)
 500                 mask |= hp->connect_ind(hdev, bdaddr, type);
 501
 502         hp = hci_proto[HCI_PROTO_SCO];
 503         if (hp && hp->connect_ind)
 504                 mask |= hp->connect_ind(hdev, bdaddr, type);
 505
 506         return mask;
 507 }
 508
 509 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 510 {
 511         register struct hci_proto *hp;
 512
 513         hp = hci_proto[HCI_PROTO_L2CAP];
 514         if (hp && hp->connect_cfm)
 515                 hp->connect_cfm(conn, status);
 516
 517         hp = hci_proto[HCI_PROTO_SCO];
 518         if (hp && hp->connect_cfm)
 519                 hp->connect_cfm(conn, status);
 520 }
 521
 522 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 523 {
 524         register struct hci_proto *hp;
 525         int reason = 0x13;
 526
 527         hp = hci_proto[HCI_PROTO_L2CAP];
 528         if (hp && hp->disconn_ind)
 529                 reason = hp->disconn_ind(conn);
 530
 531         hp = hci_proto[HCI_PROTO_SCO];
 532         if (hp && hp->disconn_ind)
 533                 reason = hp->disconn_ind(conn);
 534
 535         return reason;
 536 }
 537
 538 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 539 {
 540         register struct hci_proto *hp;
 541
 542         hp = hci_proto[HCI_PROTO_L2CAP];
 543         if (hp && hp->disconn_cfm)
 544                 hp->disconn_cfm(conn, reason);
 545
 546         hp = hci_proto[HCI_PROTO_SCO];
 547         if (hp && hp->disconn_cfm)
 548                 hp->disconn_cfm(conn, reason);
 549 }
 550
 551 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 552 {
 553         register struct hci_proto *hp;
 554         __u8 encrypt;
 555
 556         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 557                 return;
 558
 559         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 560
 561         hp = hci_proto[HCI_PROTO_L2CAP];
 562         if (hp && hp->security_cfm)
 563                 hp->security_cfm(conn, status, encrypt);
 564
 565         hp = hci_proto[HCI_PROTO_SCO];
 566         if (hp && hp->security_cfm)
 567                 hp->security_cfm(conn, status, encrypt);
 568 }
 569
 570 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 571 {
 572         register struct hci_proto *hp;
 573
 574         hp = hci_proto[HCI_PROTO_L2CAP];
 575         if (hp && hp->security_cfm)
 576                 hp->security_cfm(conn, status, encrypt);
 577
 578         hp = hci_proto[HCI_PROTO_SCO];
 579         if (hp && hp->security_cfm)
 580                 hp->security_cfm(conn, status, encrypt);
 581 }
 582
 583 int hci_register_proto(struct hci_proto *hproto);
 584 int hci_unregister_proto(struct hci_proto *hproto);
 585
 586 /* ----- HCI callbacks ----- */
 587 struct hci_cb {
 588         struct list_head list;
 589
 590         char *name;
 591
 592         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 593         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 594         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 595 };
 596
 597 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 598 {
 599         struct list_head *p;
 600         __u8 encrypt;
 601
 602         hci_proto_auth_cfm(conn, status);
 603
 604         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 605                 return;
 606
 607         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 608
 609         read_lock_bh(&hci_cb_list_lock);
 610         list_for_each(p, &hci_cb_list) {
 611                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 612                 if (cb->security_cfm)
 613                         cb->security_cfm(conn, status, encrypt);
 614         }
 615         read_unlock_bh(&hci_cb_list_lock);
 616 }
 617
 618 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 619 {
 620         struct list_head *p;
 621
 622         if (conn->sec_level == BT_SECURITY_SDP)
 623                 conn->sec_level = BT_SECURITY_LOW;
 624
 625         hci_proto_encrypt_cfm(conn, status, encrypt);
 626
 627         read_lock_bh(&hci_cb_list_lock);
 628         list_for_each(p, &hci_cb_list) {
 629                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 630                 if (cb->security_cfm)
 631                         cb->security_cfm(conn, status, encrypt);
 632         }
 633         read_unlock_bh(&hci_cb_list_lock);
 634 }
 635
 636 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 637 {
 638         struct list_head *p;
 639
 640         read_lock_bh(&hci_cb_list_lock);
 641         list_for_each(p, &hci_cb_list) {
 642                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 643                 if (cb->key_change_cfm)
 644                         cb->key_change_cfm(conn, status);
 645         }
 646         read_unlock_bh(&hci_cb_list_lock);
 647 }
 648
 649 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 650 {
 651         struct list_head *p;
 652
 653         read_lock_bh(&hci_cb_list_lock);
 654         list_for_each(p, &hci_cb_list) {
 655                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 656                 if (cb->role_switch_cfm)
 657                         cb->role_switch_cfm(conn, status, role);
 658         }
 659         read_unlock_bh(&hci_cb_list_lock);
 660 }
 661
 662 int hci_register_cb(struct hci_cb *hcb);
 663 int hci_unregister_cb(struct hci_cb *hcb);
 664
 665 int hci_register_notifier(struct notifier_block *nb);
 666 int hci_unregister_notifier(struct notifier_block *nb);
 667
 668 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 669 int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 670 int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 671
 672 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 673
 674 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 675
 676 /* ----- HCI Sockets ----- */
 677 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
 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 };
 688
 689 /* HCI security filter */
 690 #define HCI_SFLT_MAX_OGF  5
 691
 692 struct hci_sec_filter {
 693         __u32 type_mask;
 694         __u32 event_mask[2];
 695         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 696 };
 697
 698 /* ----- HCI requests ----- */
 699 #define HCI_REQ_DONE      0
 700 #define HCI_REQ_PEND      1
 701 #define HCI_REQ_CANCELED  2
 702
 703 #define hci_req_lock(d)         down(&d->req_lock)
 704 #define hci_req_unlock(d)       up(&d->req_lock)
 705
 706 void hci_req_complete(struct hci_dev *hdev, int result);
 707
 708 #endif /* __HCI_CORE_H */