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         unsigned int     le_num;
  64 };
  65
  66 struct bdaddr_list {
  67         struct list_head list;
  68         bdaddr_t bdaddr;
  69 };
  70
  71 struct bt_uuid {
  72         struct list_head list;
  73         u8 uuid[16];
  74         u8 svc_hint;
  75 };
  76
  77 struct link_key {
  78         struct list_head list;
  79         bdaddr_t bdaddr;
  80         u8 type;
  81         u8 val[16];
  82         u8 pin_len;
  83 };
  84
  85 struct oob_data {
  86         struct list_head list;
  87         bdaddr_t bdaddr;
  88         u8 hash[16];
  89         u8 randomizer[16];
  90 };
  91
  92 #define NUM_REASSEMBLY 4
  93 struct hci_dev {
  94         struct list_head list;
  95         spinlock_t      lock;
  96         atomic_t        refcnt;
  97
  98         char            name[8];
  99         unsigned long   flags;
 100         __u16           id;
 101         __u8            bus;
 102         __u8            dev_type;
 103         bdaddr_t        bdaddr;
 104         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 105         __u8            dev_class[3];
 106         __u8            major_class;
 107         __u8            minor_class;
 108         __u8            features[8];
 109         __u8            commands[64];
 110         __u8            ssp_mode;
 111         __u8            hci_ver;
 112         __u16           hci_rev;
 113         __u8            lmp_ver;
 114         __u16           manufacturer;
 115         __le16          lmp_subver;
 116         __u16           voice_setting;
 117         __u8            io_capability;
 118
 119         __u16           pkt_type;
 120         __u16           esco_type;
 121         __u16           link_policy;
 122         __u16           link_mode;
 123
 124         __u32           idle_timeout;
 125         __u16           sniff_min_interval;
 126         __u16           sniff_max_interval;
 127
 128         unsigned long   quirks;
 129
 130         atomic_t        cmd_cnt;
 131         unsigned int    acl_cnt;
 132         unsigned int    sco_cnt;
 133         unsigned int    le_cnt;
 134
 135         unsigned int    acl_mtu;
 136         unsigned int    sco_mtu;
 137         unsigned int    le_mtu;
 138         unsigned int    acl_pkts;
 139         unsigned int    sco_pkts;
 140         unsigned int    le_pkts;
 141
 142         unsigned long   acl_last_tx;
 143         unsigned long   sco_last_tx;
 144         unsigned long   le_last_tx;
 145
 146         struct workqueue_struct *workqueue;
 147
 148         struct work_struct      power_on;
 149         struct work_struct      power_off;
 150         struct timer_list       off_timer;
 151
 152         struct timer_list       cmd_timer;
 153         struct tasklet_struct   cmd_task;
 154         struct tasklet_struct   rx_task;
 155         struct tasklet_struct   tx_task;
 156
 157         struct sk_buff_head     rx_q;
 158         struct sk_buff_head     raw_q;
 159         struct sk_buff_head     cmd_q;
 160
 161         struct sk_buff          *sent_cmd;
 162         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 163
 164         struct mutex            req_lock;
 165         wait_queue_head_t       req_wait_q;
 166         __u32                   req_status;
 167         __u32                   req_result;
 168
 169         __u16                   init_last_cmd;
 170
 171         struct inquiry_cache    inq_cache;
 172         struct hci_conn_hash    conn_hash;
 173         struct list_head        blacklist;
 174
 175         struct list_head        uuids;
 176
 177         struct list_head        link_keys;
 178
 179         struct list_head        remote_oob_data;
 180
 181         struct hci_dev_stats    stat;
 182
 183         struct sk_buff_head     driver_init;
 184
 185         void                    *driver_data;
 186         void                    *core_data;
 187
 188         atomic_t                promisc;
 189
 190         struct dentry           *debugfs;
 191
 192         struct device           *parent;
 193         struct device           dev;
 194
 195         struct rfkill           *rfkill;
 196
 197         struct module           *owner;
 198
 199         int (*open)(struct hci_dev *hdev);
 200         int (*close)(struct hci_dev *hdev);
 201         int (*flush)(struct hci_dev *hdev);
 202         int (*send)(struct sk_buff *skb);
 203         void (*destruct)(struct hci_dev *hdev);
 204         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 205         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 206 };
 207
 208 struct hci_conn {
 209         struct list_head list;
 210
 211         atomic_t        refcnt;
 212         spinlock_t      lock;
 213
 214         bdaddr_t        dst;
 215         __u16           handle;
 216         __u16           state;
 217         __u8            mode;
 218         __u8            type;
 219         __u8            out;
 220         __u8            attempt;
 221         __u8            dev_class[3];
 222         __u8            features[8];
 223         __u8            ssp_mode;
 224         __u16           interval;
 225         __u16           pkt_type;
 226         __u16           link_policy;
 227         __u32           link_mode;
 228         __u8            auth_type;
 229         __u8            sec_level;
 230         __u8            pending_sec_level;
 231         __u8            pin_length;
 232         __u8            io_capability;
 233         __u8            power_save;
 234         __u16           disc_timeout;
 235         unsigned long   pend;
 236
 237         __u8            remote_cap;
 238         __u8            remote_oob;
 239         __u8            remote_auth;
 240
 241         unsigned int    sent;
 242
 243         struct sk_buff_head data_q;
 244
 245         struct timer_list disc_timer;
 246         struct timer_list idle_timer;
 247
 248         struct work_struct work_add;
 249         struct work_struct work_del;
 250
 251         struct device   dev;
 252         atomic_t        devref;
 253
 254         struct hci_dev  *hdev;
 255         void            *l2cap_data;
 256         void            *sco_data;
 257         void            *priv;
 258
 259         struct hci_conn *link;
 260
 261         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 262         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 263         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 264 };
 265
 266 extern struct hci_proto *hci_proto[];
 267 extern struct list_head hci_dev_list;
 268 extern struct list_head hci_cb_list;
 269 extern rwlock_t hci_dev_list_lock;
 270 extern rwlock_t hci_cb_list_lock;
 271
 272 /* ----- Inquiry cache ----- */
 273 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 274 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 275
 276 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 277 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 278 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 279 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 280
 281 static inline void inquiry_cache_init(struct hci_dev *hdev)
 282 {
 283         struct inquiry_cache *c = &hdev->inq_cache;
 284         spin_lock_init(&c->lock);
 285         c->list = NULL;
 286 }
 287
 288 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 289 {
 290         struct inquiry_cache *c = &hdev->inq_cache;
 291         return c->list == NULL;
 292 }
 293
 294 static inline long inquiry_cache_age(struct hci_dev *hdev)
 295 {
 296         struct inquiry_cache *c = &hdev->inq_cache;
 297         return jiffies - c->timestamp;
 298 }
 299
 300 static inline long inquiry_entry_age(struct inquiry_entry *e)
 301 {
 302         return jiffies - e->timestamp;
 303 }
 304
 305 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 306 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 307
 308 /* ----- HCI Connections ----- */
 309 enum {
 310         HCI_CONN_AUTH_PEND,
 311         HCI_CONN_ENCRYPT_PEND,
 312         HCI_CONN_RSWITCH_PEND,
 313         HCI_CONN_MODE_CHANGE_PEND,
 314         HCI_CONN_SCO_SETUP_PEND,
 315 };
 316
 317 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 318 {
 319         struct hci_conn_hash *h = &hdev->conn_hash;
 320         INIT_LIST_HEAD(&h->list);
 321         spin_lock_init(&h->lock);
 322         h->acl_num = 0;
 323         h->sco_num = 0;
 324 }
 325
 326 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 327 {
 328         struct hci_conn_hash *h = &hdev->conn_hash;
 329         list_add(&c->list, &h->list);
 330         switch (c->type) {
 331         case ACL_LINK:
 332                 h->acl_num++;
 333                 break;
 334         case LE_LINK:
 335                 h->le_num++;
 336                 break;
 337         case SCO_LINK:
 338         case ESCO_LINK:
 339                 h->sco_num++;
 340                 break;
 341         }
 342 }
 343
 344 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 345 {
 346         struct hci_conn_hash *h = &hdev->conn_hash;
 347         list_del(&c->list);
 348         switch (c->type) {
 349         case ACL_LINK:
 350                 h->acl_num--;
 351                 break;
 352         case LE_LINK:
 353                 h->le_num--;
 354                 break;
 355         case SCO_LINK:
 356         case ESCO_LINK:
 357                 h->sco_num--;
 358                 break;
 359         }
 360 }
 361
 362 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 363                                                                 __u16 handle)
 364 {
 365         struct hci_conn_hash *h = &hdev->conn_hash;
 366         struct list_head *p;
 367         struct hci_conn  *c;
 368
 369         list_for_each(p, &h->list) {
 370                 c = list_entry(p, struct hci_conn, list);
 371                 if (c->handle == handle)
 372                         return c;
 373         }
 374         return NULL;
 375 }
 376
 377 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 378                                                         __u8 type, bdaddr_t *ba)
 379 {
 380         struct hci_conn_hash *h = &hdev->conn_hash;
 381         struct list_head *p;
 382         struct hci_conn  *c;
 383
 384         list_for_each(p, &h->list) {
 385                 c = list_entry(p, struct hci_conn, list);
 386                 if (c->type == type && !bacmp(&c->dst, ba))
 387                         return c;
 388         }
 389         return NULL;
 390 }
 391
 392 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 393                                                         __u8 type, __u16 state)
 394 {
 395         struct hci_conn_hash *h = &hdev->conn_hash;
 396         struct list_head *p;
 397         struct hci_conn  *c;
 398
 399         list_for_each(p, &h->list) {
 400                 c = list_entry(p, struct hci_conn, list);
 401                 if (c->type == type && c->state == state)
 402                         return c;
 403         }
 404         return NULL;
 405 }
 406
 407 void hci_acl_connect(struct hci_conn *conn);
 408 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 409 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 410 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 411 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 412
 413 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 414 int hci_conn_del(struct hci_conn *conn);
 415 void hci_conn_hash_flush(struct hci_dev *hdev);
 416 void hci_conn_check_pending(struct hci_dev *hdev);
 417
 418 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 419 int hci_conn_check_link_mode(struct hci_conn *conn);
 420 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 421 int hci_conn_change_link_key(struct hci_conn *conn);
 422 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 423
 424 void hci_conn_enter_active_mode(struct hci_conn *conn);
 425 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 426
 427 void hci_conn_hold_device(struct hci_conn *conn);
 428 void hci_conn_put_device(struct hci_conn *conn);
 429
 430 static inline void hci_conn_hold(struct hci_conn *conn)
 431 {
 432         atomic_inc(&conn->refcnt);
 433         del_timer(&conn->disc_timer);
 434 }
 435
 436 static inline void hci_conn_put(struct hci_conn *conn)
 437 {
 438         if (atomic_dec_and_test(&conn->refcnt)) {
 439                 unsigned long timeo;
 440                 if (conn->type == ACL_LINK) {
 441                         del_timer(&conn->idle_timer);
 442                         if (conn->state == BT_CONNECTED) {
 443                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 444                                 if (!conn->out)
 445                                         timeo *= 2;
 446                         } else
 447                                 timeo = msecs_to_jiffies(10);
 448                 } else
 449                         timeo = msecs_to_jiffies(10);
 450                 mod_timer(&conn->disc_timer, jiffies + timeo);
 451         }
 452 }
 453
 454 /* ----- HCI Devices ----- */
 455 static inline void __hci_dev_put(struct hci_dev *d)
 456 {
 457         if (atomic_dec_and_test(&d->refcnt))
 458                 d->destruct(d);
 459 }
 460
 461 static inline void hci_dev_put(struct hci_dev *d)
 462 {
 463         __hci_dev_put(d);
 464         module_put(d->owner);
 465 }
 466
 467 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 468 {
 469         atomic_inc(&d->refcnt);
 470         return d;
 471 }
 472
 473 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 474 {
 475         if (try_module_get(d->owner))
 476                 return __hci_dev_hold(d);
 477         return NULL;
 478 }
 479
 480 #define hci_dev_lock(d)         spin_lock(&d->lock)
 481 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 482 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 483 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 484
 485 struct hci_dev *hci_dev_get(int index);
 486 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 487
 488 struct hci_dev *hci_alloc_dev(void);
 489 void hci_free_dev(struct hci_dev *hdev);
 490 int hci_register_dev(struct hci_dev *hdev);
 491 int hci_unregister_dev(struct hci_dev *hdev);
 492 int hci_suspend_dev(struct hci_dev *hdev);
 493 int hci_resume_dev(struct hci_dev *hdev);
 494 int hci_dev_open(__u16 dev);
 495 int hci_dev_close(__u16 dev);
 496 int hci_dev_reset(__u16 dev);
 497 int hci_dev_reset_stat(__u16 dev);
 498 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 499 int hci_get_dev_list(void __user *arg);
 500 int hci_get_dev_info(void __user *arg);
 501 int hci_get_conn_list(void __user *arg);
 502 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 503 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 504 int hci_inquiry(void __user *arg);
 505
 506 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 507 int hci_blacklist_clear(struct hci_dev *hdev);
 508
 509 int hci_uuids_clear(struct hci_dev *hdev);
 510
 511 int hci_link_keys_clear(struct hci_dev *hdev);
 512 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 513 int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
 514                                                 u8 *key, u8 type, u8 pin_len);
 515 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 516
 517 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 518 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 519                                                         bdaddr_t *bdaddr);
 520 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 521                                                                 u8 *randomizer);
 522 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 523
 524 void hci_del_off_timer(struct hci_dev *hdev);
 525
 526 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 527
 528 int hci_recv_frame(struct sk_buff *skb);
 529 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 530 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 531
 532 int hci_register_sysfs(struct hci_dev *hdev);
 533 void hci_unregister_sysfs(struct hci_dev *hdev);
 534 void hci_conn_init_sysfs(struct hci_conn *conn);
 535 void hci_conn_add_sysfs(struct hci_conn *conn);
 536 void hci_conn_del_sysfs(struct hci_conn *conn);
 537
 538 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 539
 540 /* ----- LMP capabilities ----- */
 541 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 542 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 543 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 544 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 545 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 546 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 547 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 548 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 549
 550 /* ----- HCI protocols ----- */
 551 struct hci_proto {
 552         char            *name;
 553         unsigned int    id;
 554         unsigned long   flags;
 555
 556         void            *priv;
 557
 558         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 559         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 560         int (*disconn_ind)      (struct hci_conn *conn);
 561         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 562         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 563         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 564         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 565 };
 566
 567 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 568 {
 569         register struct hci_proto *hp;
 570         int mask = 0;
 571
 572         hp = hci_proto[HCI_PROTO_L2CAP];
 573         if (hp && hp->connect_ind)
 574                 mask |= hp->connect_ind(hdev, bdaddr, type);
 575
 576         hp = hci_proto[HCI_PROTO_SCO];
 577         if (hp && hp->connect_ind)
 578                 mask |= hp->connect_ind(hdev, bdaddr, type);
 579
 580         return mask;
 581 }
 582
 583 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 584 {
 585         register struct hci_proto *hp;
 586
 587         hp = hci_proto[HCI_PROTO_L2CAP];
 588         if (hp && hp->connect_cfm)
 589                 hp->connect_cfm(conn, status);
 590
 591         hp = hci_proto[HCI_PROTO_SCO];
 592         if (hp && hp->connect_cfm)
 593                 hp->connect_cfm(conn, status);
 594
 595         if (conn->connect_cfm_cb)
 596                 conn->connect_cfm_cb(conn, status);
 597 }
 598
 599 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 600 {
 601         register struct hci_proto *hp;
 602         int reason = 0x13;
 603
 604         hp = hci_proto[HCI_PROTO_L2CAP];
 605         if (hp && hp->disconn_ind)
 606                 reason = hp->disconn_ind(conn);
 607
 608         hp = hci_proto[HCI_PROTO_SCO];
 609         if (hp && hp->disconn_ind)
 610                 reason = hp->disconn_ind(conn);
 611
 612         return reason;
 613 }
 614
 615 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 616 {
 617         register struct hci_proto *hp;
 618
 619         hp = hci_proto[HCI_PROTO_L2CAP];
 620         if (hp && hp->disconn_cfm)
 621                 hp->disconn_cfm(conn, reason);
 622
 623         hp = hci_proto[HCI_PROTO_SCO];
 624         if (hp && hp->disconn_cfm)
 625                 hp->disconn_cfm(conn, reason);
 626
 627         if (conn->disconn_cfm_cb)
 628                 conn->disconn_cfm_cb(conn, reason);
 629 }
 630
 631 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 632 {
 633         register struct hci_proto *hp;
 634         __u8 encrypt;
 635
 636         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 637                 return;
 638
 639         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 640
 641         hp = hci_proto[HCI_PROTO_L2CAP];
 642         if (hp && hp->security_cfm)
 643                 hp->security_cfm(conn, status, encrypt);
 644
 645         hp = hci_proto[HCI_PROTO_SCO];
 646         if (hp && hp->security_cfm)
 647                 hp->security_cfm(conn, status, encrypt);
 648
 649         if (conn->security_cfm_cb)
 650                 conn->security_cfm_cb(conn, status);
 651 }
 652
 653 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 654 {
 655         register struct hci_proto *hp;
 656
 657         hp = hci_proto[HCI_PROTO_L2CAP];
 658         if (hp && hp->security_cfm)
 659                 hp->security_cfm(conn, status, encrypt);
 660
 661         hp = hci_proto[HCI_PROTO_SCO];
 662         if (hp && hp->security_cfm)
 663                 hp->security_cfm(conn, status, encrypt);
 664
 665         if (conn->security_cfm_cb)
 666                 conn->security_cfm_cb(conn, status);
 667 }
 668
 669 int hci_register_proto(struct hci_proto *hproto);
 670 int hci_unregister_proto(struct hci_proto *hproto);
 671
 672 /* ----- HCI callbacks ----- */
 673 struct hci_cb {
 674         struct list_head list;
 675
 676         char *name;
 677
 678         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 679         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 680         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 681 };
 682
 683 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 684 {
 685         struct list_head *p;
 686         __u8 encrypt;
 687
 688         hci_proto_auth_cfm(conn, status);
 689
 690         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 691                 return;
 692
 693         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 694
 695         read_lock_bh(&hci_cb_list_lock);
 696         list_for_each(p, &hci_cb_list) {
 697                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 698                 if (cb->security_cfm)
 699                         cb->security_cfm(conn, status, encrypt);
 700         }
 701         read_unlock_bh(&hci_cb_list_lock);
 702 }
 703
 704 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 705 {
 706         struct list_head *p;
 707
 708         if (conn->sec_level == BT_SECURITY_SDP)
 709                 conn->sec_level = BT_SECURITY_LOW;
 710
 711         hci_proto_encrypt_cfm(conn, status, encrypt);
 712
 713         read_lock_bh(&hci_cb_list_lock);
 714         list_for_each(p, &hci_cb_list) {
 715                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 716                 if (cb->security_cfm)
 717                         cb->security_cfm(conn, status, encrypt);
 718         }
 719         read_unlock_bh(&hci_cb_list_lock);
 720 }
 721
 722 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 723 {
 724         struct list_head *p;
 725
 726         read_lock_bh(&hci_cb_list_lock);
 727         list_for_each(p, &hci_cb_list) {
 728                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 729                 if (cb->key_change_cfm)
 730                         cb->key_change_cfm(conn, status);
 731         }
 732         read_unlock_bh(&hci_cb_list_lock);
 733 }
 734
 735 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 736 {
 737         struct list_head *p;
 738
 739         read_lock_bh(&hci_cb_list_lock);
 740         list_for_each(p, &hci_cb_list) {
 741                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 742                 if (cb->role_switch_cfm)
 743                         cb->role_switch_cfm(conn, status, role);
 744         }
 745         read_unlock_bh(&hci_cb_list_lock);
 746 }
 747
 748 int hci_register_cb(struct hci_cb *hcb);
 749 int hci_unregister_cb(struct hci_cb *hcb);
 750
 751 int hci_register_notifier(struct notifier_block *nb);
 752 int hci_unregister_notifier(struct notifier_block *nb);
 753
 754 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 755 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 756 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 757
 758 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 759
 760 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 761
 762 /* ----- HCI Sockets ----- */
 763 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 764                                                         struct sock *skip_sk);
 765
 766 /* Management interface */
 767 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 768 int mgmt_index_added(u16 index);
 769 int mgmt_index_removed(u16 index);
 770 int mgmt_powered(u16 index, u8 powered);
 771 int mgmt_discoverable(u16 index, u8 discoverable);
 772 int mgmt_connectable(u16 index, u8 connectable);
 773 int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type);
 774 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
 775 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
 776 int mgmt_disconnect_failed(u16 index);
 777 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 778 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr);
 779 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 780 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 781 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value);
 782 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 783 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
 784                                                                 u8 status);
 785 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 786 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
 787 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
 788                                                                 u8 status);
 789
 790 /* HCI info for socket */
 791 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 792
 793 struct hci_pinfo {
 794         struct bt_sock    bt;
 795         struct hci_dev    *hdev;
 796         struct hci_filter filter;
 797         __u32             cmsg_mask;
 798         unsigned short   channel;
 799 };
 800
 801 /* HCI security filter */
 802 #define HCI_SFLT_MAX_OGF  5
 803
 804 struct hci_sec_filter {
 805         __u32 type_mask;
 806         __u32 event_mask[2];
 807         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 808 };
 809
 810 /* ----- HCI requests ----- */
 811 #define HCI_REQ_DONE      0
 812 #define HCI_REQ_PEND      1
 813 #define HCI_REQ_CANCELED  2
 814
 815 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 816 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 817
 818 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 819
 820 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 821                                         u16 latency, u16 to_multiplier);
 822 #endif /* __HCI_CORE_H */