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            eir[HCI_MAX_EIR_LENGTH];
 106         __u8            dev_class[3];
 107         __u8            major_class;
 108         __u8            minor_class;
 109         __u8            features[8];
 110         __u8            commands[64];
 111         __u8            ssp_mode;
 112         __u8            hci_ver;
 113         __u16           hci_rev;
 114         __u8            lmp_ver;
 115         __u16           manufacturer;
 116         __le16          lmp_subver;
 117         __u16           voice_setting;
 118         __u8            io_capability;
 119
 120         __u16           pkt_type;
 121         __u16           esco_type;
 122         __u16           link_policy;
 123         __u16           link_mode;
 124
 125         __u32           idle_timeout;
 126         __u16           sniff_min_interval;
 127         __u16           sniff_max_interval;
 128
 129         unsigned int    auto_accept_delay;
 130
 131         unsigned long   quirks;
 132
 133         atomic_t        cmd_cnt;
 134         unsigned int    acl_cnt;
 135         unsigned int    sco_cnt;
 136         unsigned int    le_cnt;
 137
 138         unsigned int    acl_mtu;
 139         unsigned int    sco_mtu;
 140         unsigned int    le_mtu;
 141         unsigned int    acl_pkts;
 142         unsigned int    sco_pkts;
 143         unsigned int    le_pkts;
 144
 145         unsigned long   acl_last_tx;
 146         unsigned long   sco_last_tx;
 147         unsigned long   le_last_tx;
 148
 149         struct workqueue_struct *workqueue;
 150
 151         struct work_struct      power_on;
 152         struct work_struct      power_off;
 153         struct timer_list       off_timer;
 154
 155         struct timer_list       cmd_timer;
 156         struct tasklet_struct   cmd_task;
 157         struct tasklet_struct   rx_task;
 158         struct tasklet_struct   tx_task;
 159
 160         struct sk_buff_head     rx_q;
 161         struct sk_buff_head     raw_q;
 162         struct sk_buff_head     cmd_q;
 163
 164         struct sk_buff          *sent_cmd;
 165         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 166
 167         struct mutex            req_lock;
 168         wait_queue_head_t       req_wait_q;
 169         __u32                   req_status;
 170         __u32                   req_result;
 171
 172         __u16                   init_last_cmd;
 173
 174         struct inquiry_cache    inq_cache;
 175         struct hci_conn_hash    conn_hash;
 176         struct list_head        blacklist;
 177
 178         struct list_head        uuids;
 179
 180         struct list_head        link_keys;
 181
 182         struct list_head        remote_oob_data;
 183
 184         struct hci_dev_stats    stat;
 185
 186         struct sk_buff_head     driver_init;
 187
 188         void                    *driver_data;
 189         void                    *core_data;
 190
 191         atomic_t                promisc;
 192
 193         struct dentry           *debugfs;
 194
 195         struct device           *parent;
 196         struct device           dev;
 197
 198         struct rfkill           *rfkill;
 199
 200         struct module           *owner;
 201
 202         int (*open)(struct hci_dev *hdev);
 203         int (*close)(struct hci_dev *hdev);
 204         int (*flush)(struct hci_dev *hdev);
 205         int (*send)(struct sk_buff *skb);
 206         void (*destruct)(struct hci_dev *hdev);
 207         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 208         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 209 };
 210
 211 struct hci_conn {
 212         struct list_head list;
 213
 214         atomic_t        refcnt;
 215         spinlock_t      lock;
 216
 217         bdaddr_t        dst;
 218         __u16           handle;
 219         __u16           state;
 220         __u8            mode;
 221         __u8            type;
 222         __u8            out;
 223         __u8            attempt;
 224         __u8            dev_class[3];
 225         __u8            features[8];
 226         __u8            ssp_mode;
 227         __u16           interval;
 228         __u16           pkt_type;
 229         __u16           link_policy;
 230         __u32           link_mode;
 231         __u8            key_type;
 232         __u8            auth_type;
 233         __u8            sec_level;
 234         __u8            pending_sec_level;
 235         __u8            pin_length;
 236         __u8            io_capability;
 237         __u8            power_save;
 238         __u16           disc_timeout;
 239         unsigned long   pend;
 240
 241         __u8            remote_cap;
 242         __u8            remote_oob;
 243         __u8            remote_auth;
 244
 245         unsigned int    sent;
 246
 247         struct sk_buff_head data_q;
 248
 249         struct timer_list disc_timer;
 250         struct timer_list idle_timer;
 251         struct timer_list auto_accept_timer;
 252
 253         struct work_struct work_add;
 254         struct work_struct work_del;
 255
 256         struct device   dev;
 257         atomic_t        devref;
 258
 259         struct hci_dev  *hdev;
 260         void            *l2cap_data;
 261         void            *sco_data;
 262         void            *priv;
 263
 264         struct hci_conn *link;
 265
 266         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 267         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 268         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 269 };
 270
 271 extern struct hci_proto *hci_proto[];
 272 extern struct list_head hci_dev_list;
 273 extern struct list_head hci_cb_list;
 274 extern rwlock_t hci_dev_list_lock;
 275 extern rwlock_t hci_cb_list_lock;
 276
 277 /* ----- Inquiry cache ----- */
 278 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 279 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 280
 281 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 282 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 283 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 284 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 285
 286 static inline void inquiry_cache_init(struct hci_dev *hdev)
 287 {
 288         struct inquiry_cache *c = &hdev->inq_cache;
 289         spin_lock_init(&c->lock);
 290         c->list = NULL;
 291 }
 292
 293 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 294 {
 295         struct inquiry_cache *c = &hdev->inq_cache;
 296         return c->list == NULL;
 297 }
 298
 299 static inline long inquiry_cache_age(struct hci_dev *hdev)
 300 {
 301         struct inquiry_cache *c = &hdev->inq_cache;
 302         return jiffies - c->timestamp;
 303 }
 304
 305 static inline long inquiry_entry_age(struct inquiry_entry *e)
 306 {
 307         return jiffies - e->timestamp;
 308 }
 309
 310 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 311 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 312
 313 /* ----- HCI Connections ----- */
 314 enum {
 315         HCI_CONN_AUTH_PEND,
 316         HCI_CONN_ENCRYPT_PEND,
 317         HCI_CONN_RSWITCH_PEND,
 318         HCI_CONN_MODE_CHANGE_PEND,
 319         HCI_CONN_SCO_SETUP_PEND,
 320 };
 321
 322 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 323 {
 324         struct hci_conn_hash *h = &hdev->conn_hash;
 325         INIT_LIST_HEAD(&h->list);
 326         spin_lock_init(&h->lock);
 327         h->acl_num = 0;
 328         h->sco_num = 0;
 329 }
 330
 331 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 332 {
 333         struct hci_conn_hash *h = &hdev->conn_hash;
 334         list_add(&c->list, &h->list);
 335         switch (c->type) {
 336         case ACL_LINK:
 337                 h->acl_num++;
 338                 break;
 339         case LE_LINK:
 340                 h->le_num++;
 341                 break;
 342         case SCO_LINK:
 343         case ESCO_LINK:
 344                 h->sco_num++;
 345                 break;
 346         }
 347 }
 348
 349 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 350 {
 351         struct hci_conn_hash *h = &hdev->conn_hash;
 352         list_del(&c->list);
 353         switch (c->type) {
 354         case ACL_LINK:
 355                 h->acl_num--;
 356                 break;
 357         case LE_LINK:
 358                 h->le_num--;
 359                 break;
 360         case SCO_LINK:
 361         case ESCO_LINK:
 362                 h->sco_num--;
 363                 break;
 364         }
 365 }
 366
 367 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 368                                                                 __u16 handle)
 369 {
 370         struct hci_conn_hash *h = &hdev->conn_hash;
 371         struct list_head *p;
 372         struct hci_conn  *c;
 373
 374         list_for_each(p, &h->list) {
 375                 c = list_entry(p, struct hci_conn, list);
 376                 if (c->handle == handle)
 377                         return c;
 378         }
 379         return NULL;
 380 }
 381
 382 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 383                                                         __u8 type, bdaddr_t *ba)
 384 {
 385         struct hci_conn_hash *h = &hdev->conn_hash;
 386         struct list_head *p;
 387         struct hci_conn  *c;
 388
 389         list_for_each(p, &h->list) {
 390                 c = list_entry(p, struct hci_conn, list);
 391                 if (c->type == type && !bacmp(&c->dst, ba))
 392                         return c;
 393         }
 394         return NULL;
 395 }
 396
 397 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 398                                                         __u8 type, __u16 state)
 399 {
 400         struct hci_conn_hash *h = &hdev->conn_hash;
 401         struct list_head *p;
 402         struct hci_conn  *c;
 403
 404         list_for_each(p, &h->list) {
 405                 c = list_entry(p, struct hci_conn, list);
 406                 if (c->type == type && c->state == state)
 407                         return c;
 408         }
 409         return NULL;
 410 }
 411
 412 void hci_acl_connect(struct hci_conn *conn);
 413 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 414 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 415 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 416 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 417
 418 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 419 int hci_conn_del(struct hci_conn *conn);
 420 void hci_conn_hash_flush(struct hci_dev *hdev);
 421 void hci_conn_check_pending(struct hci_dev *hdev);
 422
 423 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
 424 int hci_conn_check_link_mode(struct hci_conn *conn);
 425 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 426 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 427 int hci_conn_change_link_key(struct hci_conn *conn);
 428 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 429
 430 void hci_conn_enter_active_mode(struct hci_conn *conn);
 431 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 432
 433 void hci_conn_hold_device(struct hci_conn *conn);
 434 void hci_conn_put_device(struct hci_conn *conn);
 435
 436 static inline void hci_conn_hold(struct hci_conn *conn)
 437 {
 438         atomic_inc(&conn->refcnt);
 439         del_timer(&conn->disc_timer);
 440 }
 441
 442 static inline void hci_conn_put(struct hci_conn *conn)
 443 {
 444         if (atomic_dec_and_test(&conn->refcnt)) {
 445                 unsigned long timeo;
 446                 if (conn->type == ACL_LINK) {
 447                         del_timer(&conn->idle_timer);
 448                         if (conn->state == BT_CONNECTED) {
 449                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 450                                 if (!conn->out)
 451                                         timeo *= 2;
 452                         } else
 453                                 timeo = msecs_to_jiffies(10);
 454                 } else
 455                         timeo = msecs_to_jiffies(10);
 456                 mod_timer(&conn->disc_timer, jiffies + timeo);
 457         }
 458 }
 459
 460 /* ----- HCI Devices ----- */
 461 static inline void __hci_dev_put(struct hci_dev *d)
 462 {
 463         if (atomic_dec_and_test(&d->refcnt))
 464                 d->destruct(d);
 465 }
 466
 467 static inline void hci_dev_put(struct hci_dev *d)
 468 {
 469         __hci_dev_put(d);
 470         module_put(d->owner);
 471 }
 472
 473 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 474 {
 475         atomic_inc(&d->refcnt);
 476         return d;
 477 }
 478
 479 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 480 {
 481         if (try_module_get(d->owner))
 482                 return __hci_dev_hold(d);
 483         return NULL;
 484 }
 485
 486 #define hci_dev_lock(d)         spin_lock(&d->lock)
 487 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 488 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 489 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 490
 491 struct hci_dev *hci_dev_get(int index);
 492 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 493
 494 struct hci_dev *hci_alloc_dev(void);
 495 void hci_free_dev(struct hci_dev *hdev);
 496 int hci_register_dev(struct hci_dev *hdev);
 497 int hci_unregister_dev(struct hci_dev *hdev);
 498 int hci_suspend_dev(struct hci_dev *hdev);
 499 int hci_resume_dev(struct hci_dev *hdev);
 500 int hci_dev_open(__u16 dev);
 501 int hci_dev_close(__u16 dev);
 502 int hci_dev_reset(__u16 dev);
 503 int hci_dev_reset_stat(__u16 dev);
 504 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 505 int hci_get_dev_list(void __user *arg);
 506 int hci_get_dev_info(void __user *arg);
 507 int hci_get_conn_list(void __user *arg);
 508 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 509 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 510 int hci_inquiry(void __user *arg);
 511
 512 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 513 int hci_blacklist_clear(struct hci_dev *hdev);
 514
 515 int hci_uuids_clear(struct hci_dev *hdev);
 516
 517 int hci_link_keys_clear(struct hci_dev *hdev);
 518 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 519 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 520                         bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 521 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 522
 523 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 524 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 525                                                         bdaddr_t *bdaddr);
 526 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 527                                                                 u8 *randomizer);
 528 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 529
 530 void hci_del_off_timer(struct hci_dev *hdev);
 531
 532 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 533
 534 int hci_recv_frame(struct sk_buff *skb);
 535 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 536 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 537
 538 int hci_register_sysfs(struct hci_dev *hdev);
 539 void hci_unregister_sysfs(struct hci_dev *hdev);
 540 void hci_conn_init_sysfs(struct hci_conn *conn);
 541 void hci_conn_add_sysfs(struct hci_conn *conn);
 542 void hci_conn_del_sysfs(struct hci_conn *conn);
 543
 544 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 545
 546 /* ----- LMP capabilities ----- */
 547 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 548 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 549 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 550 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 551 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 552 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 553 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 554 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 555
 556 /* ----- HCI protocols ----- */
 557 struct hci_proto {
 558         char            *name;
 559         unsigned int    id;
 560         unsigned long   flags;
 561
 562         void            *priv;
 563
 564         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type);
 565         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 566         int (*disconn_ind)      (struct hci_conn *conn);
 567         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 568         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 569         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 570         int (*security_cfm)     (struct hci_conn *conn, __u8 status, __u8 encrypt);
 571 };
 572
 573 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type)
 574 {
 575         register struct hci_proto *hp;
 576         int mask = 0;
 577
 578         hp = hci_proto[HCI_PROTO_L2CAP];
 579         if (hp && hp->connect_ind)
 580                 mask |= hp->connect_ind(hdev, bdaddr, type);
 581
 582         hp = hci_proto[HCI_PROTO_SCO];
 583         if (hp && hp->connect_ind)
 584                 mask |= hp->connect_ind(hdev, bdaddr, type);
 585
 586         return mask;
 587 }
 588
 589 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 590 {
 591         register struct hci_proto *hp;
 592
 593         hp = hci_proto[HCI_PROTO_L2CAP];
 594         if (hp && hp->connect_cfm)
 595                 hp->connect_cfm(conn, status);
 596
 597         hp = hci_proto[HCI_PROTO_SCO];
 598         if (hp && hp->connect_cfm)
 599                 hp->connect_cfm(conn, status);
 600
 601         if (conn->connect_cfm_cb)
 602                 conn->connect_cfm_cb(conn, status);
 603 }
 604
 605 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 606 {
 607         register struct hci_proto *hp;
 608         int reason = 0x13;
 609
 610         hp = hci_proto[HCI_PROTO_L2CAP];
 611         if (hp && hp->disconn_ind)
 612                 reason = hp->disconn_ind(conn);
 613
 614         hp = hci_proto[HCI_PROTO_SCO];
 615         if (hp && hp->disconn_ind)
 616                 reason = hp->disconn_ind(conn);
 617
 618         return reason;
 619 }
 620
 621 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 622 {
 623         register struct hci_proto *hp;
 624
 625         hp = hci_proto[HCI_PROTO_L2CAP];
 626         if (hp && hp->disconn_cfm)
 627                 hp->disconn_cfm(conn, reason);
 628
 629         hp = hci_proto[HCI_PROTO_SCO];
 630         if (hp && hp->disconn_cfm)
 631                 hp->disconn_cfm(conn, reason);
 632
 633         if (conn->disconn_cfm_cb)
 634                 conn->disconn_cfm_cb(conn, reason);
 635 }
 636
 637 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 638 {
 639         register struct hci_proto *hp;
 640         __u8 encrypt;
 641
 642         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 643                 return;
 644
 645         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 646
 647         hp = hci_proto[HCI_PROTO_L2CAP];
 648         if (hp && hp->security_cfm)
 649                 hp->security_cfm(conn, status, encrypt);
 650
 651         hp = hci_proto[HCI_PROTO_SCO];
 652         if (hp && hp->security_cfm)
 653                 hp->security_cfm(conn, status, encrypt);
 654
 655         if (conn->security_cfm_cb)
 656                 conn->security_cfm_cb(conn, status);
 657 }
 658
 659 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 660 {
 661         register struct hci_proto *hp;
 662
 663         hp = hci_proto[HCI_PROTO_L2CAP];
 664         if (hp && hp->security_cfm)
 665                 hp->security_cfm(conn, status, encrypt);
 666
 667         hp = hci_proto[HCI_PROTO_SCO];
 668         if (hp && hp->security_cfm)
 669                 hp->security_cfm(conn, status, encrypt);
 670
 671         if (conn->security_cfm_cb)
 672                 conn->security_cfm_cb(conn, status);
 673 }
 674
 675 int hci_register_proto(struct hci_proto *hproto);
 676 int hci_unregister_proto(struct hci_proto *hproto);
 677
 678 /* ----- HCI callbacks ----- */
 679 struct hci_cb {
 680         struct list_head list;
 681
 682         char *name;
 683
 684         void (*security_cfm)    (struct hci_conn *conn, __u8 status, __u8 encrypt);
 685         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 686         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 687 };
 688
 689 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 690 {
 691         struct list_head *p;
 692         __u8 encrypt;
 693
 694         hci_proto_auth_cfm(conn, status);
 695
 696         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 697                 return;
 698
 699         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 700
 701         read_lock_bh(&hci_cb_list_lock);
 702         list_for_each(p, &hci_cb_list) {
 703                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 704                 if (cb->security_cfm)
 705                         cb->security_cfm(conn, status, encrypt);
 706         }
 707         read_unlock_bh(&hci_cb_list_lock);
 708 }
 709
 710 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
 711 {
 712         struct list_head *p;
 713
 714         if (conn->sec_level == BT_SECURITY_SDP)
 715                 conn->sec_level = BT_SECURITY_LOW;
 716
 717         hci_proto_encrypt_cfm(conn, status, encrypt);
 718
 719         read_lock_bh(&hci_cb_list_lock);
 720         list_for_each(p, &hci_cb_list) {
 721                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 722                 if (cb->security_cfm)
 723                         cb->security_cfm(conn, status, encrypt);
 724         }
 725         read_unlock_bh(&hci_cb_list_lock);
 726 }
 727
 728 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 729 {
 730         struct list_head *p;
 731
 732         read_lock_bh(&hci_cb_list_lock);
 733         list_for_each(p, &hci_cb_list) {
 734                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 735                 if (cb->key_change_cfm)
 736                         cb->key_change_cfm(conn, status);
 737         }
 738         read_unlock_bh(&hci_cb_list_lock);
 739 }
 740
 741 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
 742 {
 743         struct list_head *p;
 744
 745         read_lock_bh(&hci_cb_list_lock);
 746         list_for_each(p, &hci_cb_list) {
 747                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 748                 if (cb->role_switch_cfm)
 749                         cb->role_switch_cfm(conn, status, role);
 750         }
 751         read_unlock_bh(&hci_cb_list_lock);
 752 }
 753
 754 int hci_register_cb(struct hci_cb *hcb);
 755 int hci_unregister_cb(struct hci_cb *hcb);
 756
 757 int hci_register_notifier(struct notifier_block *nb);
 758 int hci_unregister_notifier(struct notifier_block *nb);
 759
 760 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 761 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 762 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 763
 764 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 765
 766 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 767
 768 /* ----- HCI Sockets ----- */
 769 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 770                                                         struct sock *skip_sk);
 771
 772 /* Management interface */
 773 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 774 int mgmt_index_added(u16 index);
 775 int mgmt_index_removed(u16 index);
 776 int mgmt_powered(u16 index, u8 powered);
 777 int mgmt_discoverable(u16 index, u8 discoverable);
 778 int mgmt_connectable(u16 index, u8 connectable);
 779 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
 780 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
 781 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
 782 int mgmt_disconnect_failed(u16 index);
 783 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 784 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
 785 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 786 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 787 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
 788                                                         u8 confirm_hint);
 789 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 790 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
 791                                                                 u8 status);
 792 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 793 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
 794 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
 795                                                                 u8 status);
 796 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
 797                                                                 u8 *eir);
 798 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
 799 int mgmt_discovering(u16 index, u8 discovering);
 800
 801 /* HCI info for socket */
 802 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 803
 804 struct hci_pinfo {
 805         struct bt_sock    bt;
 806         struct hci_dev    *hdev;
 807         struct hci_filter filter;
 808         __u32             cmsg_mask;
 809         unsigned short   channel;
 810 };
 811
 812 /* HCI security filter */
 813 #define HCI_SFLT_MAX_OGF  5
 814
 815 struct hci_sec_filter {
 816         __u32 type_mask;
 817         __u32 event_mask[2];
 818         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 819 };
 820
 821 /* ----- HCI requests ----- */
 822 #define HCI_REQ_DONE      0
 823 #define HCI_REQ_PEND      1
 824 #define HCI_REQ_CANCELED  2
 825
 826 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 827 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 828
 829 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 830
 831 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 832                                         u16 latency, u16 to_multiplier);
 833 #endif /* __HCI_CORE_H */