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