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 key_master_id {
  78         __le16 ediv;
  79         u8 rand[8];
  80 } __packed;
  81
  82 struct link_key_data {
  83         bdaddr_t bdaddr;
  84         u8 type;
  85         u8 val[16];
  86         u8 pin_len;
  87         u8 dlen;
  88         u8 data[0];
  89 } __packed;
  90
  91 struct link_key {
  92         struct list_head list;
  93         bdaddr_t bdaddr;
  94         u8 type;
  95         u8 val[16];
  96         u8 pin_len;
  97         u8 dlen;
  98         u8 data[0];
  99 };
 100
 101 struct oob_data {
 102         struct list_head list;
 103         bdaddr_t bdaddr;
 104         u8 hash[16];
 105         u8 randomizer[16];
 106 };
 107
 108 struct adv_entry {
 109         struct list_head list;
 110         bdaddr_t bdaddr;
 111         u8 bdaddr_type;
 112 };
 113
 114 #define NUM_REASSEMBLY 4
 115 struct hci_dev {
 116         struct list_head list;
 117         spinlock_t      lock;
 118         atomic_t        refcnt;
 119
 120         char            name[8];
 121         unsigned long   flags;
 122         __u16           id;
 123         __u8            bus;
 124         __u8            dev_type;
 125         bdaddr_t        bdaddr;
 126         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 127         __u8            eir[HCI_MAX_EIR_LENGTH];
 128         __u8            dev_class[3];
 129         __u8            major_class;
 130         __u8            minor_class;
 131         __u8            features[8];
 132         __u8            extfeatures[8];
 133         __u8            commands[64];
 134         __u8            ssp_mode;
 135         __u8            hci_ver;
 136         __u16           hci_rev;
 137         __u8            lmp_ver;
 138         __u16           manufacturer;
 139         __le16          lmp_subver;
 140         __u16           voice_setting;
 141         __u8            io_capability;
 142
 143         __u16           pkt_type;
 144         __u16           esco_type;
 145         __u16           link_policy;
 146         __u16           link_mode;
 147
 148         __u32           idle_timeout;
 149         __u16           sniff_min_interval;
 150         __u16           sniff_max_interval;
 151
 152         unsigned int    auto_accept_delay;
 153
 154         unsigned long   quirks;
 155
 156         atomic_t        cmd_cnt;
 157         unsigned int    acl_cnt;
 158         unsigned int    sco_cnt;
 159         unsigned int    le_cnt;
 160
 161         unsigned int    acl_mtu;
 162         unsigned int    sco_mtu;
 163         unsigned int    le_mtu;
 164         unsigned int    acl_pkts;
 165         unsigned int    sco_pkts;
 166         unsigned int    le_pkts;
 167
 168         unsigned long   acl_last_tx;
 169         unsigned long   sco_last_tx;
 170         unsigned long   le_last_tx;
 171
 172         struct workqueue_struct *workqueue;
 173
 174         struct work_struct      power_on;
 175         struct work_struct      power_off;
 176         struct timer_list       off_timer;
 177
 178         struct timer_list       cmd_timer;
 179         struct tasklet_struct   cmd_task;
 180         struct tasklet_struct   rx_task;
 181         struct tasklet_struct   tx_task;
 182
 183         struct sk_buff_head     rx_q;
 184         struct sk_buff_head     raw_q;
 185         struct sk_buff_head     cmd_q;
 186
 187         struct sk_buff          *sent_cmd;
 188         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 189
 190         struct mutex            req_lock;
 191         wait_queue_head_t       req_wait_q;
 192         __u32                   req_status;
 193         __u32                   req_result;
 194
 195         __u16                   init_last_cmd;
 196
 197         struct crypto_blkcipher *tfm;
 198
 199         struct inquiry_cache    inq_cache;
 200         struct hci_conn_hash    conn_hash;
 201         struct list_head        blacklist;
 202
 203         struct list_head        uuids;
 204
 205         struct list_head        link_keys;
 206
 207         struct list_head        remote_oob_data;
 208
 209         struct list_head        adv_entries;
 210         struct timer_list       adv_timer;
 211
 212         struct hci_dev_stats    stat;
 213
 214         struct sk_buff_head     driver_init;
 215
 216         void                    *driver_data;
 217         void                    *core_data;
 218
 219         atomic_t                promisc;
 220
 221         struct dentry           *debugfs;
 222
 223         struct device           *parent;
 224         struct device           dev;
 225
 226         struct rfkill           *rfkill;
 227
 228         struct module           *owner;
 229
 230         int (*open)(struct hci_dev *hdev);
 231         int (*close)(struct hci_dev *hdev);
 232         int (*flush)(struct hci_dev *hdev);
 233         int (*send)(struct sk_buff *skb);
 234         void (*destruct)(struct hci_dev *hdev);
 235         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 236         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 237 };
 238
 239 struct hci_conn {
 240         struct list_head list;
 241
 242         atomic_t        refcnt;
 243
 244         bdaddr_t        dst;
 245         __u8            dst_type;
 246         __u16           handle;
 247         __u16           state;
 248         __u8            mode;
 249         __u8            type;
 250         __u8            out;
 251         __u8            attempt;
 252         __u8            dev_class[3];
 253         __u8            features[8];
 254         __u8            ssp_mode;
 255         __u16           interval;
 256         __u16           pkt_type;
 257         __u16           link_policy;
 258         __u32           link_mode;
 259         __u8            key_type;
 260         __u8            auth_type;
 261         __u8            sec_level;
 262         __u8            pending_sec_level;
 263         __u8            pin_length;
 264         __u8            io_capability;
 265         __u8            power_save;
 266         __u16           disc_timeout;
 267         unsigned long   pend;
 268         __u8            ltk[16];
 269
 270         __u8            remote_cap;
 271         __u8            remote_oob;
 272         __u8            remote_auth;
 273
 274         unsigned int    sent;
 275
 276         struct sk_buff_head data_q;
 277
 278         struct timer_list disc_timer;
 279         struct timer_list idle_timer;
 280         struct timer_list auto_accept_timer;
 281
 282         struct work_struct work_add;
 283         struct work_struct work_del;
 284
 285         struct device   dev;
 286         atomic_t        devref;
 287
 288         struct hci_dev  *hdev;
 289         void            *l2cap_data;
 290         void            *sco_data;
 291
 292         struct hci_conn *link;
 293
 294         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 295         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 296         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 297 };
 298
 299 extern struct hci_proto *hci_proto[];
 300 extern struct list_head hci_dev_list;
 301 extern struct list_head hci_cb_list;
 302 extern rwlock_t hci_dev_list_lock;
 303 extern rwlock_t hci_cb_list_lock;
 304
 305 /* ----- Inquiry cache ----- */
 306 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 307 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 308
 309 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 310 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 311 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 312 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 313
 314 static inline void inquiry_cache_init(struct hci_dev *hdev)
 315 {
 316         struct inquiry_cache *c = &hdev->inq_cache;
 317         spin_lock_init(&c->lock);
 318         c->list = NULL;
 319 }
 320
 321 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 322 {
 323         struct inquiry_cache *c = &hdev->inq_cache;
 324         return c->list == NULL;
 325 }
 326
 327 static inline long inquiry_cache_age(struct hci_dev *hdev)
 328 {
 329         struct inquiry_cache *c = &hdev->inq_cache;
 330         return jiffies - c->timestamp;
 331 }
 332
 333 static inline long inquiry_entry_age(struct inquiry_entry *e)
 334 {
 335         return jiffies - e->timestamp;
 336 }
 337
 338 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 339                                                         bdaddr_t *bdaddr);
 340 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 341
 342 /* ----- HCI Connections ----- */
 343 enum {
 344         HCI_CONN_AUTH_PEND,
 345         HCI_CONN_REAUTH_PEND,
 346         HCI_CONN_ENCRYPT_PEND,
 347         HCI_CONN_RSWITCH_PEND,
 348         HCI_CONN_MODE_CHANGE_PEND,
 349         HCI_CONN_SCO_SETUP_PEND,
 350 };
 351
 352 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 353 {
 354         struct hci_conn_hash *h = &hdev->conn_hash;
 355         INIT_LIST_HEAD(&h->list);
 356         spin_lock_init(&h->lock);
 357         h->acl_num = 0;
 358         h->sco_num = 0;
 359 }
 360
 361 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 362 {
 363         struct hci_conn_hash *h = &hdev->conn_hash;
 364         list_add(&c->list, &h->list);
 365         switch (c->type) {
 366         case ACL_LINK:
 367                 h->acl_num++;
 368                 break;
 369         case LE_LINK:
 370                 h->le_num++;
 371                 break;
 372         case SCO_LINK:
 373         case ESCO_LINK:
 374                 h->sco_num++;
 375                 break;
 376         }
 377 }
 378
 379 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 380 {
 381         struct hci_conn_hash *h = &hdev->conn_hash;
 382         list_del(&c->list);
 383         switch (c->type) {
 384         case ACL_LINK:
 385                 h->acl_num--;
 386                 break;
 387         case LE_LINK:
 388                 h->le_num--;
 389                 break;
 390         case SCO_LINK:
 391         case ESCO_LINK:
 392                 h->sco_num--;
 393                 break;
 394         }
 395 }
 396
 397 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 398                                                                 __u16 handle)
 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->handle == handle)
 407                         return c;
 408         }
 409         return NULL;
 410 }
 411
 412 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 413                                                         __u8 type, bdaddr_t *ba)
 414 {
 415         struct hci_conn_hash *h = &hdev->conn_hash;
 416         struct list_head *p;
 417         struct hci_conn  *c;
 418
 419         list_for_each(p, &h->list) {
 420                 c = list_entry(p, struct hci_conn, list);
 421                 if (c->type == type && !bacmp(&c->dst, ba))
 422                         return c;
 423         }
 424         return NULL;
 425 }
 426
 427 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 428                                                         __u8 type, __u16 state)
 429 {
 430         struct hci_conn_hash *h = &hdev->conn_hash;
 431         struct list_head *p;
 432         struct hci_conn  *c;
 433
 434         list_for_each(p, &h->list) {
 435                 c = list_entry(p, struct hci_conn, list);
 436                 if (c->type == type && c->state == state)
 437                         return c;
 438         }
 439         return NULL;
 440 }
 441
 442 void hci_acl_connect(struct hci_conn *conn);
 443 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 444 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 445 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 446 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 447
 448 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 449 int hci_conn_del(struct hci_conn *conn);
 450 void hci_conn_hash_flush(struct hci_dev *hdev);
 451 void hci_conn_check_pending(struct hci_dev *hdev);
 452
 453 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 454                                                 __u8 sec_level, __u8 auth_type);
 455 int hci_conn_check_link_mode(struct hci_conn *conn);
 456 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 457 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 458 int hci_conn_change_link_key(struct hci_conn *conn);
 459 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 460
 461 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 462 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 463
 464 void hci_conn_hold_device(struct hci_conn *conn);
 465 void hci_conn_put_device(struct hci_conn *conn);
 466
 467 static inline void hci_conn_hold(struct hci_conn *conn)
 468 {
 469         atomic_inc(&conn->refcnt);
 470         del_timer(&conn->disc_timer);
 471 }
 472
 473 static inline void hci_conn_put(struct hci_conn *conn)
 474 {
 475         if (atomic_dec_and_test(&conn->refcnt)) {
 476                 unsigned long timeo;
 477                 if (conn->type == ACL_LINK) {
 478                         del_timer(&conn->idle_timer);
 479                         if (conn->state == BT_CONNECTED) {
 480                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 481                                 if (!conn->out)
 482                                         timeo *= 2;
 483                         } else {
 484                                 timeo = msecs_to_jiffies(10);
 485                         }
 486                 } else {
 487                         timeo = msecs_to_jiffies(10);
 488                 }
 489                 mod_timer(&conn->disc_timer, jiffies + timeo);
 490         }
 491 }
 492
 493 /* ----- HCI Devices ----- */
 494 static inline void __hci_dev_put(struct hci_dev *d)
 495 {
 496         if (atomic_dec_and_test(&d->refcnt))
 497                 d->destruct(d);
 498 }
 499
 500 static inline void hci_dev_put(struct hci_dev *d)
 501 {
 502         __hci_dev_put(d);
 503         module_put(d->owner);
 504 }
 505
 506 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 507 {
 508         atomic_inc(&d->refcnt);
 509         return d;
 510 }
 511
 512 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 513 {
 514         if (try_module_get(d->owner))
 515                 return __hci_dev_hold(d);
 516         return NULL;
 517 }
 518
 519 #define hci_dev_lock(d)         spin_lock(&d->lock)
 520 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 521 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 522 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 523
 524 struct hci_dev *hci_dev_get(int index);
 525 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 526
 527 struct hci_dev *hci_alloc_dev(void);
 528 void hci_free_dev(struct hci_dev *hdev);
 529 int hci_register_dev(struct hci_dev *hdev);
 530 int hci_unregister_dev(struct hci_dev *hdev);
 531 int hci_suspend_dev(struct hci_dev *hdev);
 532 int hci_resume_dev(struct hci_dev *hdev);
 533 int hci_dev_open(__u16 dev);
 534 int hci_dev_close(__u16 dev);
 535 int hci_dev_reset(__u16 dev);
 536 int hci_dev_reset_stat(__u16 dev);
 537 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 538 int hci_get_dev_list(void __user *arg);
 539 int hci_get_dev_info(void __user *arg);
 540 int hci_get_conn_list(void __user *arg);
 541 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 542 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 543 int hci_inquiry(void __user *arg);
 544
 545 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 546 int hci_blacklist_clear(struct hci_dev *hdev);
 547 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
 548 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
 549
 550 int hci_uuids_clear(struct hci_dev *hdev);
 551
 552 int hci_link_keys_clear(struct hci_dev *hdev);
 553 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 554 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 555                         bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 556 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
 557 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
 558                                         bdaddr_t *bdaddr, u8 type);
 559 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
 560                                         __le16 ediv, u8 rand[8], u8 ltk[16]);
 561 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 562
 563 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 564 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 565                                                         bdaddr_t *bdaddr);
 566 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 567                                                                 u8 *randomizer);
 568 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 569
 570 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
 571 int hci_adv_entries_clear(struct hci_dev *hdev);
 572 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
 573 int hci_add_adv_entry(struct hci_dev *hdev,
 574                                         struct hci_ev_le_advertising_info *ev);
 575
 576 void hci_del_off_timer(struct hci_dev *hdev);
 577
 578 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 579
 580 int hci_recv_frame(struct sk_buff *skb);
 581 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 582 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 583
 584 int hci_register_sysfs(struct hci_dev *hdev);
 585 void hci_unregister_sysfs(struct hci_dev *hdev);
 586 void hci_conn_init_sysfs(struct hci_conn *conn);
 587 void hci_conn_add_sysfs(struct hci_conn *conn);
 588 void hci_conn_del_sysfs(struct hci_conn *conn);
 589
 590 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 591
 592 /* ----- LMP capabilities ----- */
 593 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 594 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 595 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 596 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 597 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 598 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 599 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 600 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 601
 602 /* ----- Extended LMP capabilities ----- */
 603 #define lmp_host_le_capable(dev)   ((dev)->extfeatures[0] & LMP_HOST_LE)
 604
 605 /* ----- HCI protocols ----- */
 606 struct hci_proto {
 607         char            *name;
 608         unsigned int    id;
 609         unsigned long   flags;
 610
 611         void            *priv;
 612
 613         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr,
 614                                                                 __u8 type);
 615         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 616         int (*disconn_ind)      (struct hci_conn *conn);
 617         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 618         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb,
 619                                                                 __u16 flags);
 620         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 621         int (*security_cfm)     (struct hci_conn *conn, __u8 status,
 622                                                                 __u8 encrypt);
 623 };
 624
 625 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 626                                                                 __u8 type)
 627 {
 628         register struct hci_proto *hp;
 629         int mask = 0;
 630
 631         hp = hci_proto[HCI_PROTO_L2CAP];
 632         if (hp && hp->connect_ind)
 633                 mask |= hp->connect_ind(hdev, bdaddr, type);
 634
 635         hp = hci_proto[HCI_PROTO_SCO];
 636         if (hp && hp->connect_ind)
 637                 mask |= hp->connect_ind(hdev, bdaddr, type);
 638
 639         return mask;
 640 }
 641
 642 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 643 {
 644         register struct hci_proto *hp;
 645
 646         hp = hci_proto[HCI_PROTO_L2CAP];
 647         if (hp && hp->connect_cfm)
 648                 hp->connect_cfm(conn, status);
 649
 650         hp = hci_proto[HCI_PROTO_SCO];
 651         if (hp && hp->connect_cfm)
 652                 hp->connect_cfm(conn, status);
 653
 654         if (conn->connect_cfm_cb)
 655                 conn->connect_cfm_cb(conn, status);
 656 }
 657
 658 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 659 {
 660         register struct hci_proto *hp;
 661         int reason = 0x13;
 662
 663         hp = hci_proto[HCI_PROTO_L2CAP];
 664         if (hp && hp->disconn_ind)
 665                 reason = hp->disconn_ind(conn);
 666
 667         hp = hci_proto[HCI_PROTO_SCO];
 668         if (hp && hp->disconn_ind)
 669                 reason = hp->disconn_ind(conn);
 670
 671         return reason;
 672 }
 673
 674 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 675 {
 676         register struct hci_proto *hp;
 677
 678         hp = hci_proto[HCI_PROTO_L2CAP];
 679         if (hp && hp->disconn_cfm)
 680                 hp->disconn_cfm(conn, reason);
 681
 682         hp = hci_proto[HCI_PROTO_SCO];
 683         if (hp && hp->disconn_cfm)
 684                 hp->disconn_cfm(conn, reason);
 685
 686         if (conn->disconn_cfm_cb)
 687                 conn->disconn_cfm_cb(conn, reason);
 688 }
 689
 690 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 691 {
 692         register struct hci_proto *hp;
 693         __u8 encrypt;
 694
 695         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 696                 return;
 697
 698         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 699
 700         hp = hci_proto[HCI_PROTO_L2CAP];
 701         if (hp && hp->security_cfm)
 702                 hp->security_cfm(conn, status, encrypt);
 703
 704         hp = hci_proto[HCI_PROTO_SCO];
 705         if (hp && hp->security_cfm)
 706                 hp->security_cfm(conn, status, encrypt);
 707
 708         if (conn->security_cfm_cb)
 709                 conn->security_cfm_cb(conn, status);
 710 }
 711
 712 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
 713                                                                 __u8 encrypt)
 714 {
 715         register struct hci_proto *hp;
 716
 717         hp = hci_proto[HCI_PROTO_L2CAP];
 718         if (hp && hp->security_cfm)
 719                 hp->security_cfm(conn, status, encrypt);
 720
 721         hp = hci_proto[HCI_PROTO_SCO];
 722         if (hp && hp->security_cfm)
 723                 hp->security_cfm(conn, status, encrypt);
 724
 725         if (conn->security_cfm_cb)
 726                 conn->security_cfm_cb(conn, status);
 727 }
 728
 729 int hci_register_proto(struct hci_proto *hproto);
 730 int hci_unregister_proto(struct hci_proto *hproto);
 731
 732 /* ----- HCI callbacks ----- */
 733 struct hci_cb {
 734         struct list_head list;
 735
 736         char *name;
 737
 738         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
 739                                                                 __u8 encrypt);
 740         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 741         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 742 };
 743
 744 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 745 {
 746         struct list_head *p;
 747         __u8 encrypt;
 748
 749         hci_proto_auth_cfm(conn, status);
 750
 751         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 752                 return;
 753
 754         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 755
 756         read_lock_bh(&hci_cb_list_lock);
 757         list_for_each(p, &hci_cb_list) {
 758                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 759                 if (cb->security_cfm)
 760                         cb->security_cfm(conn, status, encrypt);
 761         }
 762         read_unlock_bh(&hci_cb_list_lock);
 763 }
 764
 765 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 766                                                                 __u8 encrypt)
 767 {
 768         struct list_head *p;
 769
 770         if (conn->sec_level == BT_SECURITY_SDP)
 771                 conn->sec_level = BT_SECURITY_LOW;
 772
 773         if (conn->pending_sec_level > conn->sec_level)
 774                 conn->sec_level = conn->pending_sec_level;
 775
 776         hci_proto_encrypt_cfm(conn, status, encrypt);
 777
 778         read_lock_bh(&hci_cb_list_lock);
 779         list_for_each(p, &hci_cb_list) {
 780                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 781                 if (cb->security_cfm)
 782                         cb->security_cfm(conn, status, encrypt);
 783         }
 784         read_unlock_bh(&hci_cb_list_lock);
 785 }
 786
 787 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 788 {
 789         struct list_head *p;
 790
 791         read_lock_bh(&hci_cb_list_lock);
 792         list_for_each(p, &hci_cb_list) {
 793                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 794                 if (cb->key_change_cfm)
 795                         cb->key_change_cfm(conn, status);
 796         }
 797         read_unlock_bh(&hci_cb_list_lock);
 798 }
 799
 800 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 801                                                                 __u8 role)
 802 {
 803         struct list_head *p;
 804
 805         read_lock_bh(&hci_cb_list_lock);
 806         list_for_each(p, &hci_cb_list) {
 807                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 808                 if (cb->role_switch_cfm)
 809                         cb->role_switch_cfm(conn, status, role);
 810         }
 811         read_unlock_bh(&hci_cb_list_lock);
 812 }
 813
 814 int hci_register_cb(struct hci_cb *hcb);
 815 int hci_unregister_cb(struct hci_cb *hcb);
 816
 817 int hci_register_notifier(struct notifier_block *nb);
 818 int hci_unregister_notifier(struct notifier_block *nb);
 819
 820 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 821 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 822 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 823
 824 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 825
 826 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 827
 828 /* ----- HCI Sockets ----- */
 829 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 830                                                         struct sock *skip_sk);
 831
 832 /* Management interface */
 833 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 834 int mgmt_index_added(u16 index);
 835 int mgmt_index_removed(u16 index);
 836 int mgmt_powered(u16 index, u8 powered);
 837 int mgmt_discoverable(u16 index, u8 discoverable);
 838 int mgmt_connectable(u16 index, u8 connectable);
 839 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
 840 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
 841 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
 842 int mgmt_disconnect_failed(u16 index);
 843 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 844 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
 845 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 846 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 847 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
 848                                                         u8 confirm_hint);
 849 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 850 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
 851                                                                 u8 status);
 852 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 853 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
 854 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
 855                                                                 u8 status);
 856 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
 857                                                                 u8 *eir);
 858 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
 859 int mgmt_discovering(u16 index, u8 discovering);
 860
 861 /* HCI info for socket */
 862 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 863
 864 struct hci_pinfo {
 865         struct bt_sock    bt;
 866         struct hci_dev    *hdev;
 867         struct hci_filter filter;
 868         __u32             cmsg_mask;
 869         unsigned short   channel;
 870 };
 871
 872 /* HCI security filter */
 873 #define HCI_SFLT_MAX_OGF  5
 874
 875 struct hci_sec_filter {
 876         __u32 type_mask;
 877         __u32 event_mask[2];
 878         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 879 };
 880
 881 /* ----- HCI requests ----- */
 882 #define HCI_REQ_DONE      0
 883 #define HCI_REQ_PEND      1
 884 #define HCI_REQ_CANCELED  2
 885
 886 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 887 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 888
 889 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 890
 891 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 892                                         u16 latency, u16 to_multiplier);
 893 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 894                                                         __u8 ltk[16]);
 895 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
 896 void hci_le_ltk_neg_reply(struct hci_conn *conn);
 897
 898 #endif /* __HCI_CORE_H */