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 <linux/interrupt.h>
  29 #include <net/bluetooth/hci.h>
  30
  31 /* HCI upper protocols */
  32 #define HCI_PROTO_L2CAP 0
  33 #define HCI_PROTO_SCO   1
  34
  35 /* HCI priority */
  36 #define HCI_PRIO_MAX    7
  37
  38 /* HCI Core structures */
  39 struct inquiry_data {
  40         bdaddr_t        bdaddr;
  41         __u8            pscan_rep_mode;
  42         __u8            pscan_period_mode;
  43         __u8            pscan_mode;
  44         __u8            dev_class[3];
  45         __le16          clock_offset;
  46         __s8            rssi;
  47         __u8            ssp_mode;
  48 };
  49
  50 struct inquiry_entry {
  51         struct inquiry_entry    *next;
  52         __u32                   timestamp;
  53         struct inquiry_data     data;
  54 };
  55
  56 struct inquiry_cache {
  57         spinlock_t              lock;
  58         __u32                   timestamp;
  59         struct inquiry_entry    *list;
  60 };
  61
  62 struct hci_conn_hash {
  63         struct list_head list;
  64         spinlock_t       lock;
  65         unsigned int     acl_num;
  66         unsigned int     sco_num;
  67         unsigned int     le_num;
  68 };
  69
  70 struct hci_chan_hash {
  71         struct list_head list;
  72         spinlock_t       lock;
  73         unsigned int     num;
  74 };
  75
  76 struct bdaddr_list {
  77         struct list_head list;
  78         bdaddr_t bdaddr;
  79 };
  80
  81 struct bt_uuid {
  82         struct list_head list;
  83         u8 uuid[16];
  84         u8 svc_hint;
  85 };
  86
  87 struct key_master_id {
  88         __le16 ediv;
  89         u8 rand[8];
  90 } __packed;
  91
  92 struct link_key_data {
  93         bdaddr_t bdaddr;
  94         u8 type;
  95         u8 val[16];
  96         u8 pin_len;
  97         u8 dlen;
  98         u8 data[0];
  99 } __packed;
 100
 101 struct link_key {
 102         struct list_head list;
 103         bdaddr_t bdaddr;
 104         u8 type;
 105         u8 val[16];
 106         u8 pin_len;
 107         u8 dlen;
 108         u8 data[0];
 109 };
 110
 111 struct oob_data {
 112         struct list_head list;
 113         bdaddr_t bdaddr;
 114         u8 hash[16];
 115         u8 randomizer[16];
 116 };
 117
 118 struct adv_entry {
 119         struct list_head list;
 120         bdaddr_t bdaddr;
 121         u8 bdaddr_type;
 122 };
 123
 124 #define NUM_REASSEMBLY 4
 125 struct hci_dev {
 126         struct list_head list;
 127         spinlock_t      lock;
 128         atomic_t        refcnt;
 129
 130         char            name[8];
 131         unsigned long   flags;
 132         __u16           id;
 133         __u8            bus;
 134         __u8            dev_type;
 135         bdaddr_t        bdaddr;
 136         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 137         __u8            eir[HCI_MAX_EIR_LENGTH];
 138         __u8            dev_class[3];
 139         __u8            major_class;
 140         __u8            minor_class;
 141         __u8            features[8];
 142         __u8            extfeatures[8];
 143         __u8            commands[64];
 144         __u8            ssp_mode;
 145         __u8            hci_ver;
 146         __u16           hci_rev;
 147         __u8            lmp_ver;
 148         __u16           manufacturer;
 149         __le16          lmp_subver;
 150         __u16           voice_setting;
 151         __u8            io_capability;
 152
 153         __u16           pkt_type;
 154         __u16           esco_type;
 155         __u16           link_policy;
 156         __u16           link_mode;
 157
 158         __u32           idle_timeout;
 159         __u16           sniff_min_interval;
 160         __u16           sniff_max_interval;
 161
 162         __u8            amp_status;
 163         __u32           amp_total_bw;
 164         __u32           amp_max_bw;
 165         __u32           amp_min_latency;
 166         __u32           amp_max_pdu;
 167         __u8            amp_type;
 168         __u16           amp_pal_cap;
 169         __u16           amp_assoc_size;
 170         __u32           amp_max_flush_to;
 171         __u32           amp_be_flush_to;
 172
 173         unsigned int    auto_accept_delay;
 174
 175         unsigned long   quirks;
 176
 177         atomic_t        cmd_cnt;
 178         unsigned int    acl_cnt;
 179         unsigned int    sco_cnt;
 180         unsigned int    le_cnt;
 181
 182         unsigned int    acl_mtu;
 183         unsigned int    sco_mtu;
 184         unsigned int    le_mtu;
 185         unsigned int    acl_pkts;
 186         unsigned int    sco_pkts;
 187         unsigned int    le_pkts;
 188
 189         unsigned long   acl_last_tx;
 190         unsigned long   sco_last_tx;
 191         unsigned long   le_last_tx;
 192
 193         struct workqueue_struct *workqueue;
 194
 195         struct work_struct      power_on;
 196         struct delayed_work     power_off;
 197
 198         __u16                   discov_timeout;
 199         struct delayed_work     discov_off;
 200
 201         struct timer_list       cmd_timer;
 202         struct tasklet_struct   cmd_task;
 203         struct tasklet_struct   rx_task;
 204         struct tasklet_struct   tx_task;
 205
 206         struct sk_buff_head     rx_q;
 207         struct sk_buff_head     raw_q;
 208         struct sk_buff_head     cmd_q;
 209
 210         struct sk_buff          *sent_cmd;
 211         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 212
 213         struct mutex            req_lock;
 214         wait_queue_head_t       req_wait_q;
 215         __u32                   req_status;
 216         __u32                   req_result;
 217
 218         __u16                   init_last_cmd;
 219
 220         struct list_head        mgmt_pending;
 221
 222         struct inquiry_cache    inq_cache;
 223         struct hci_conn_hash    conn_hash;
 224         struct list_head        blacklist;
 225
 226         struct list_head        uuids;
 227
 228         struct list_head        link_keys;
 229
 230         struct list_head        remote_oob_data;
 231
 232         struct list_head        adv_entries;
 233         struct timer_list       adv_timer;
 234
 235         struct hci_dev_stats    stat;
 236
 237         struct sk_buff_head     driver_init;
 238
 239         void                    *driver_data;
 240         void                    *core_data;
 241
 242         atomic_t                promisc;
 243
 244         struct dentry           *debugfs;
 245
 246         struct device           *parent;
 247         struct device           dev;
 248
 249         struct rfkill           *rfkill;
 250
 251         struct module           *owner;
 252
 253         int (*open)(struct hci_dev *hdev);
 254         int (*close)(struct hci_dev *hdev);
 255         int (*flush)(struct hci_dev *hdev);
 256         int (*send)(struct sk_buff *skb);
 257         void (*destruct)(struct hci_dev *hdev);
 258         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 259         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 260 };
 261
 262 struct hci_conn {
 263         struct list_head list;
 264
 265         atomic_t        refcnt;
 266
 267         bdaddr_t        dst;
 268         __u8            dst_type;
 269         __u16           handle;
 270         __u16           state;
 271         __u8            mode;
 272         __u8            type;
 273         __u8            out;
 274         __u8            attempt;
 275         __u8            dev_class[3];
 276         __u8            features[8];
 277         __u8            ssp_mode;
 278         __u16           interval;
 279         __u16           pkt_type;
 280         __u16           link_policy;
 281         __u32           link_mode;
 282         __u8            key_type;
 283         __u8            auth_type;
 284         __u8            sec_level;
 285         __u8            pending_sec_level;
 286         __u8            pin_length;
 287         __u8            enc_key_size;
 288         __u8            io_capability;
 289         __u8            power_save;
 290         __u16           disc_timeout;
 291         unsigned long   pend;
 292
 293         __u8            remote_cap;
 294         __u8            remote_oob;
 295         __u8            remote_auth;
 296
 297         unsigned int    sent;
 298
 299         struct sk_buff_head data_q;
 300         struct hci_chan_hash chan_hash;
 301
 302         struct timer_list disc_timer;
 303         struct timer_list idle_timer;
 304         struct timer_list auto_accept_timer;
 305
 306         struct work_struct work_add;
 307         struct work_struct work_del;
 308
 309         struct device   dev;
 310         atomic_t        devref;
 311
 312         struct hci_dev  *hdev;
 313         void            *l2cap_data;
 314         void            *sco_data;
 315
 316         struct hci_conn *link;
 317
 318         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 319         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 320         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 321 };
 322
 323 struct hci_chan {
 324         struct list_head list;
 325
 326         struct hci_conn *conn;
 327         struct sk_buff_head data_q;
 328         unsigned int    sent;
 329 };
 330
 331 extern struct hci_proto *hci_proto[];
 332 extern struct list_head hci_dev_list;
 333 extern struct list_head hci_cb_list;
 334 extern rwlock_t hci_dev_list_lock;
 335 extern rwlock_t hci_cb_list_lock;
 336
 337 /* ----- Inquiry cache ----- */
 338 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 339 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 340
 341 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 342 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 343 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 344 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 345
 346 static inline void inquiry_cache_init(struct hci_dev *hdev)
 347 {
 348         struct inquiry_cache *c = &hdev->inq_cache;
 349         spin_lock_init(&c->lock);
 350         c->list = NULL;
 351 }
 352
 353 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 354 {
 355         struct inquiry_cache *c = &hdev->inq_cache;
 356         return c->list == NULL;
 357 }
 358
 359 static inline long inquiry_cache_age(struct hci_dev *hdev)
 360 {
 361         struct inquiry_cache *c = &hdev->inq_cache;
 362         return jiffies - c->timestamp;
 363 }
 364
 365 static inline long inquiry_entry_age(struct inquiry_entry *e)
 366 {
 367         return jiffies - e->timestamp;
 368 }
 369
 370 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 371                                                         bdaddr_t *bdaddr);
 372 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 373
 374 /* ----- HCI Connections ----- */
 375 enum {
 376         HCI_CONN_AUTH_PEND,
 377         HCI_CONN_REAUTH_PEND,
 378         HCI_CONN_ENCRYPT_PEND,
 379         HCI_CONN_RSWITCH_PEND,
 380         HCI_CONN_MODE_CHANGE_PEND,
 381         HCI_CONN_SCO_SETUP_PEND,
 382         HCI_CONN_LE_SMP_PEND,
 383 };
 384
 385 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 386 {
 387         struct hci_conn_hash *h = &hdev->conn_hash;
 388         INIT_LIST_HEAD(&h->list);
 389         spin_lock_init(&h->lock);
 390         h->acl_num = 0;
 391         h->sco_num = 0;
 392 }
 393
 394 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 395 {
 396         struct hci_conn_hash *h = &hdev->conn_hash;
 397         list_add(&c->list, &h->list);
 398         switch (c->type) {
 399         case ACL_LINK:
 400                 h->acl_num++;
 401                 break;
 402         case LE_LINK:
 403                 h->le_num++;
 404                 break;
 405         case SCO_LINK:
 406         case ESCO_LINK:
 407                 h->sco_num++;
 408                 break;
 409         }
 410 }
 411
 412 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 413 {
 414         struct hci_conn_hash *h = &hdev->conn_hash;
 415         list_del(&c->list);
 416         switch (c->type) {
 417         case ACL_LINK:
 418                 h->acl_num--;
 419                 break;
 420         case LE_LINK:
 421                 h->le_num--;
 422                 break;
 423         case SCO_LINK:
 424         case ESCO_LINK:
 425                 h->sco_num--;
 426                 break;
 427         }
 428 }
 429
 430 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
 431 {
 432         struct hci_conn_hash *h = &hdev->conn_hash;
 433         switch (type) {
 434         case ACL_LINK:
 435                 return h->acl_num;
 436         case LE_LINK:
 437                 return h->le_num;
 438         case SCO_LINK:
 439         case ESCO_LINK:
 440                 return h->sco_num;
 441         default:
 442                 return 0;
 443         }
 444 }
 445
 446 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 447                                                                 __u16 handle)
 448 {
 449         struct hci_conn_hash *h = &hdev->conn_hash;
 450         struct list_head *p;
 451         struct hci_conn  *c;
 452
 453         list_for_each(p, &h->list) {
 454                 c = list_entry(p, struct hci_conn, list);
 455                 if (c->handle == handle)
 456                         return c;
 457         }
 458         return NULL;
 459 }
 460
 461 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 462                                                         __u8 type, bdaddr_t *ba)
 463 {
 464         struct hci_conn_hash *h = &hdev->conn_hash;
 465         struct list_head *p;
 466         struct hci_conn  *c;
 467
 468         list_for_each(p, &h->list) {
 469                 c = list_entry(p, struct hci_conn, list);
 470                 if (c->type == type && !bacmp(&c->dst, ba))
 471                         return c;
 472         }
 473         return NULL;
 474 }
 475
 476 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 477                                                         __u8 type, __u16 state)
 478 {
 479         struct hci_conn_hash *h = &hdev->conn_hash;
 480         struct list_head *p;
 481         struct hci_conn  *c;
 482
 483         list_for_each(p, &h->list) {
 484                 c = list_entry(p, struct hci_conn, list);
 485                 if (c->type == type && c->state == state)
 486                         return c;
 487         }
 488         return NULL;
 489 }
 490
 491 static inline void hci_chan_hash_init(struct hci_conn *c)
 492 {
 493         struct hci_chan_hash *h = &c->chan_hash;
 494         INIT_LIST_HEAD(&h->list);
 495         spin_lock_init(&h->lock);
 496         h->num = 0;
 497 }
 498
 499 static inline void hci_chan_hash_add(struct hci_conn *c, struct hci_chan *chan)
 500 {
 501         struct hci_chan_hash *h = &c->chan_hash;
 502         list_add(&chan->list, &h->list);
 503         h->num++;
 504 }
 505
 506 static inline void hci_chan_hash_del(struct hci_conn *c, struct hci_chan *chan)
 507 {
 508         struct hci_chan_hash *h = &c->chan_hash;
 509         list_del(&chan->list);
 510         h->num--;
 511 }
 512
 513 void hci_acl_connect(struct hci_conn *conn);
 514 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 515 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 516 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 517 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 518
 519 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 520 int hci_conn_del(struct hci_conn *conn);
 521 void hci_conn_hash_flush(struct hci_dev *hdev);
 522 void hci_conn_check_pending(struct hci_dev *hdev);
 523
 524 struct hci_chan *hci_chan_create(struct hci_conn *conn);
 525 int hci_chan_del(struct hci_chan *chan);
 526 void hci_chan_hash_flush(struct hci_conn *conn);
 527
 528 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 529                                                 __u8 sec_level, __u8 auth_type);
 530 int hci_conn_check_link_mode(struct hci_conn *conn);
 531 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 532 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 533 int hci_conn_change_link_key(struct hci_conn *conn);
 534 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 535
 536 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 537 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 538
 539 void hci_conn_hold_device(struct hci_conn *conn);
 540 void hci_conn_put_device(struct hci_conn *conn);
 541
 542 static inline void hci_conn_hold(struct hci_conn *conn)
 543 {
 544         atomic_inc(&conn->refcnt);
 545         del_timer(&conn->disc_timer);
 546 }
 547
 548 static inline void hci_conn_put(struct hci_conn *conn)
 549 {
 550         if (atomic_dec_and_test(&conn->refcnt)) {
 551                 unsigned long timeo;
 552                 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
 553                         del_timer(&conn->idle_timer);
 554                         if (conn->state == BT_CONNECTED) {
 555                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 556                                 if (!conn->out)
 557                                         timeo *= 2;
 558                         } else {
 559                                 timeo = msecs_to_jiffies(10);
 560                         }
 561                 } else {
 562                         timeo = msecs_to_jiffies(10);
 563                 }
 564                 mod_timer(&conn->disc_timer, jiffies + timeo);
 565         }
 566 }
 567
 568 /* ----- HCI Devices ----- */
 569 static inline void __hci_dev_put(struct hci_dev *d)
 570 {
 571         if (atomic_dec_and_test(&d->refcnt))
 572                 d->destruct(d);
 573 }
 574
 575 /*
 576  * hci_dev_put and hci_dev_hold are macros to avoid dragging all the
 577  * overhead of all the modular infrastructure into this header.
 578  */
 579 #define hci_dev_put(d)          \
 580 do {                            \
 581         __hci_dev_put(d);       \
 582         module_put(d->owner);   \
 583 } while (0)
 584
 585 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 586 {
 587         atomic_inc(&d->refcnt);
 588         return d;
 589 }
 590
 591 #define hci_dev_hold(d)                                         \
 592 ({                                                              \
 593         try_module_get(d->owner) ? __hci_dev_hold(d) : NULL;    \
 594 })
 595
 596 #define hci_dev_lock(d)         spin_lock(&d->lock)
 597 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 598 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 599 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 600
 601 struct hci_dev *hci_dev_get(int index);
 602 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 603
 604 struct hci_dev *hci_alloc_dev(void);
 605 void hci_free_dev(struct hci_dev *hdev);
 606 int hci_register_dev(struct hci_dev *hdev);
 607 void hci_unregister_dev(struct hci_dev *hdev);
 608 int hci_suspend_dev(struct hci_dev *hdev);
 609 int hci_resume_dev(struct hci_dev *hdev);
 610 int hci_dev_open(__u16 dev);
 611 int hci_dev_close(__u16 dev);
 612 int hci_dev_reset(__u16 dev);
 613 int hci_dev_reset_stat(__u16 dev);
 614 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 615 int hci_get_dev_list(void __user *arg);
 616 int hci_get_dev_info(void __user *arg);
 617 int hci_get_conn_list(void __user *arg);
 618 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 619 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 620 int hci_inquiry(void __user *arg);
 621
 622 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 623 int hci_blacklist_clear(struct hci_dev *hdev);
 624 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
 625 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
 626
 627 int hci_uuids_clear(struct hci_dev *hdev);
 628
 629 int hci_link_keys_clear(struct hci_dev *hdev);
 630 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 631 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 632                         bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 633 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
 634 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
 635                                         bdaddr_t *bdaddr, u8 type);
 636 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
 637                         u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
 638 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 639
 640 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 641 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 642                                                         bdaddr_t *bdaddr);
 643 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 644                                                                 u8 *randomizer);
 645 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 646
 647 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
 648 int hci_adv_entries_clear(struct hci_dev *hdev);
 649 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
 650 int hci_add_adv_entry(struct hci_dev *hdev,
 651                                         struct hci_ev_le_advertising_info *ev);
 652
 653 void hci_del_off_timer(struct hci_dev *hdev);
 654
 655 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 656
 657 int hci_recv_frame(struct sk_buff *skb);
 658 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 659 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 660
 661 void hci_init_sysfs(struct hci_dev *hdev);
 662 int hci_add_sysfs(struct hci_dev *hdev);
 663 void hci_del_sysfs(struct hci_dev *hdev);
 664 void hci_conn_init_sysfs(struct hci_conn *conn);
 665 void hci_conn_add_sysfs(struct hci_conn *conn);
 666 void hci_conn_del_sysfs(struct hci_conn *conn);
 667
 668 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 669
 670 /* ----- LMP capabilities ----- */
 671 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 672 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 673 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 674 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 675 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 676 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 677 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 678 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 679
 680 /* ----- Extended LMP capabilities ----- */
 681 #define lmp_host_le_capable(dev)   ((dev)->extfeatures[0] & LMP_HOST_LE)
 682
 683 /* ----- HCI protocols ----- */
 684 struct hci_proto {
 685         char            *name;
 686         unsigned int    id;
 687         unsigned long   flags;
 688
 689         void            *priv;
 690
 691         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr,
 692                                                                 __u8 type);
 693         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 694         int (*disconn_ind)      (struct hci_conn *conn);
 695         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 696         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb,
 697                                                                 __u16 flags);
 698         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 699         int (*security_cfm)     (struct hci_conn *conn, __u8 status,
 700                                                                 __u8 encrypt);
 701 };
 702
 703 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 704                                                                 __u8 type)
 705 {
 706         register struct hci_proto *hp;
 707         int mask = 0;
 708
 709         hp = hci_proto[HCI_PROTO_L2CAP];
 710         if (hp && hp->connect_ind)
 711                 mask |= hp->connect_ind(hdev, bdaddr, type);
 712
 713         hp = hci_proto[HCI_PROTO_SCO];
 714         if (hp && hp->connect_ind)
 715                 mask |= hp->connect_ind(hdev, bdaddr, type);
 716
 717         return mask;
 718 }
 719
 720 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 721 {
 722         register struct hci_proto *hp;
 723
 724         hp = hci_proto[HCI_PROTO_L2CAP];
 725         if (hp && hp->connect_cfm)
 726                 hp->connect_cfm(conn, status);
 727
 728         hp = hci_proto[HCI_PROTO_SCO];
 729         if (hp && hp->connect_cfm)
 730                 hp->connect_cfm(conn, status);
 731
 732         if (conn->connect_cfm_cb)
 733                 conn->connect_cfm_cb(conn, status);
 734 }
 735
 736 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 737 {
 738         register struct hci_proto *hp;
 739         int reason = HCI_ERROR_REMOTE_USER_TERM;
 740
 741         hp = hci_proto[HCI_PROTO_L2CAP];
 742         if (hp && hp->disconn_ind)
 743                 reason = hp->disconn_ind(conn);
 744
 745         hp = hci_proto[HCI_PROTO_SCO];
 746         if (hp && hp->disconn_ind)
 747                 reason = hp->disconn_ind(conn);
 748
 749         return reason;
 750 }
 751
 752 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 753 {
 754         register struct hci_proto *hp;
 755
 756         hp = hci_proto[HCI_PROTO_L2CAP];
 757         if (hp && hp->disconn_cfm)
 758                 hp->disconn_cfm(conn, reason);
 759
 760         hp = hci_proto[HCI_PROTO_SCO];
 761         if (hp && hp->disconn_cfm)
 762                 hp->disconn_cfm(conn, reason);
 763
 764         if (conn->disconn_cfm_cb)
 765                 conn->disconn_cfm_cb(conn, reason);
 766 }
 767
 768 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 769 {
 770         register struct hci_proto *hp;
 771         __u8 encrypt;
 772
 773         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 774                 return;
 775
 776         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 777
 778         hp = hci_proto[HCI_PROTO_L2CAP];
 779         if (hp && hp->security_cfm)
 780                 hp->security_cfm(conn, status, encrypt);
 781
 782         hp = hci_proto[HCI_PROTO_SCO];
 783         if (hp && hp->security_cfm)
 784                 hp->security_cfm(conn, status, encrypt);
 785
 786         if (conn->security_cfm_cb)
 787                 conn->security_cfm_cb(conn, status);
 788 }
 789
 790 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
 791                                                                 __u8 encrypt)
 792 {
 793         register struct hci_proto *hp;
 794
 795         hp = hci_proto[HCI_PROTO_L2CAP];
 796         if (hp && hp->security_cfm)
 797                 hp->security_cfm(conn, status, encrypt);
 798
 799         hp = hci_proto[HCI_PROTO_SCO];
 800         if (hp && hp->security_cfm)
 801                 hp->security_cfm(conn, status, encrypt);
 802
 803         if (conn->security_cfm_cb)
 804                 conn->security_cfm_cb(conn, status);
 805 }
 806
 807 int hci_register_proto(struct hci_proto *hproto);
 808 int hci_unregister_proto(struct hci_proto *hproto);
 809
 810 /* ----- HCI callbacks ----- */
 811 struct hci_cb {
 812         struct list_head list;
 813
 814         char *name;
 815
 816         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
 817                                                                 __u8 encrypt);
 818         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 819         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 820 };
 821
 822 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 823 {
 824         struct list_head *p;
 825         __u8 encrypt;
 826
 827         hci_proto_auth_cfm(conn, status);
 828
 829         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 830                 return;
 831
 832         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 833
 834         read_lock_bh(&hci_cb_list_lock);
 835         list_for_each(p, &hci_cb_list) {
 836                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 837                 if (cb->security_cfm)
 838                         cb->security_cfm(conn, status, encrypt);
 839         }
 840         read_unlock_bh(&hci_cb_list_lock);
 841 }
 842
 843 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 844                                                                 __u8 encrypt)
 845 {
 846         struct list_head *p;
 847
 848         if (conn->sec_level == BT_SECURITY_SDP)
 849                 conn->sec_level = BT_SECURITY_LOW;
 850
 851         if (conn->pending_sec_level > conn->sec_level)
 852                 conn->sec_level = conn->pending_sec_level;
 853
 854         hci_proto_encrypt_cfm(conn, status, encrypt);
 855
 856         read_lock_bh(&hci_cb_list_lock);
 857         list_for_each(p, &hci_cb_list) {
 858                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 859                 if (cb->security_cfm)
 860                         cb->security_cfm(conn, status, encrypt);
 861         }
 862         read_unlock_bh(&hci_cb_list_lock);
 863 }
 864
 865 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 866 {
 867         struct list_head *p;
 868
 869         read_lock_bh(&hci_cb_list_lock);
 870         list_for_each(p, &hci_cb_list) {
 871                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 872                 if (cb->key_change_cfm)
 873                         cb->key_change_cfm(conn, status);
 874         }
 875         read_unlock_bh(&hci_cb_list_lock);
 876 }
 877
 878 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 879                                                                 __u8 role)
 880 {
 881         struct list_head *p;
 882
 883         read_lock_bh(&hci_cb_list_lock);
 884         list_for_each(p, &hci_cb_list) {
 885                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 886                 if (cb->role_switch_cfm)
 887                         cb->role_switch_cfm(conn, status, role);
 888         }
 889         read_unlock_bh(&hci_cb_list_lock);
 890 }
 891
 892 int hci_register_cb(struct hci_cb *hcb);
 893 int hci_unregister_cb(struct hci_cb *hcb);
 894
 895 int hci_register_notifier(struct notifier_block *nb);
 896 int hci_unregister_notifier(struct notifier_block *nb);
 897
 898 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 899 void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
 900 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 901
 902 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 903
 904 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 905
 906 /* ----- HCI Sockets ----- */
 907 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 908                                                         struct sock *skip_sk);
 909
 910 /* Management interface */
 911 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 912 int mgmt_index_added(struct hci_dev *hdev);
 913 int mgmt_index_removed(struct hci_dev *hdev);
 914 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 915 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 916 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 917 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 918 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 919                                                                 u8 persistent);
 920 int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 921 int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 922 int mgmt_disconnect_failed(struct hci_dev *hdev);
 923 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
 924                                                                 u8 status);
 925 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
 926 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 927                                                                 u8 status);
 928 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 929                                                                 u8 status);
 930 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
 931                                                 __le32 value, u8 confirm_hint);
 932 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 933                                                                 u8 status);
 934 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
 935                                                 bdaddr_t *bdaddr, u8 status);
 936 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
 937 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 938 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 939                                                 u8 *randomizer, u8 status);
 940 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
 941                                         u8 *dev_class, s8 rssi, u8 *eir);
 942 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
 943 int mgmt_inquiry_failed(struct hci_dev *hdev, u8 status);
 944 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 945 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
 946 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
 947
 948 /* HCI info for socket */
 949 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 950
 951 struct hci_pinfo {
 952         struct bt_sock    bt;
 953         struct hci_dev    *hdev;
 954         struct hci_filter filter;
 955         __u32             cmsg_mask;
 956         unsigned short   channel;
 957 };
 958
 959 /* HCI security filter */
 960 #define HCI_SFLT_MAX_OGF  5
 961
 962 struct hci_sec_filter {
 963         __u32 type_mask;
 964         __u32 event_mask[2];
 965         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 966 };
 967
 968 /* ----- HCI requests ----- */
 969 #define HCI_REQ_DONE      0
 970 #define HCI_REQ_PEND      1
 971 #define HCI_REQ_CANCELED  2
 972
 973 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 974 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 975
 976 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 977
 978 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 979                                         u16 latency, u16 to_multiplier);
 980 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 981                                                         __u8 ltk[16]);
 982 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
 983 void hci_le_ltk_neg_reply(struct hci_conn *conn);
 984
 985 int hci_do_inquiry(struct hci_dev *hdev, u8 length);
 986 int hci_cancel_inquiry(struct hci_dev *hdev);
 987
 988 #endif /* __HCI_CORE_H */