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 Core structures */
  36 struct inquiry_data {
  37         bdaddr_t        bdaddr;
  38         __u8            pscan_rep_mode;
  39         __u8            pscan_period_mode;
  40         __u8            pscan_mode;
  41         __u8            dev_class[3];
  42         __le16          clock_offset;
  43         __s8            rssi;
  44         __u8            ssp_mode;
  45 };
  46
  47 struct inquiry_entry {
  48         struct inquiry_entry    *next;
  49         __u32                   timestamp;
  50         struct inquiry_data     data;
  51 };
  52
  53 struct inquiry_cache {
  54         spinlock_t              lock;
  55         __u32                   timestamp;
  56         struct inquiry_entry    *list;
  57 };
  58
  59 struct hci_conn_hash {
  60         struct list_head list;
  61         spinlock_t       lock;
  62         unsigned int     acl_num;
  63         unsigned int     sco_num;
  64         unsigned int     le_num;
  65 };
  66
  67 struct bdaddr_list {
  68         struct list_head list;
  69         bdaddr_t bdaddr;
  70 };
  71
  72 struct bt_uuid {
  73         struct list_head list;
  74         u8 uuid[16];
  75         u8 svc_hint;
  76 };
  77
  78 struct key_master_id {
  79         __le16 ediv;
  80         u8 rand[8];
  81 } __packed;
  82
  83 struct link_key_data {
  84         bdaddr_t bdaddr;
  85         u8 type;
  86         u8 val[16];
  87         u8 pin_len;
  88         u8 dlen;
  89         u8 data[0];
  90 } __packed;
  91
  92 struct link_key {
  93         struct list_head list;
  94         bdaddr_t bdaddr;
  95         u8 type;
  96         u8 val[16];
  97         u8 pin_len;
  98         u8 dlen;
  99         u8 data[0];
 100 };
 101
 102 struct oob_data {
 103         struct list_head list;
 104         bdaddr_t bdaddr;
 105         u8 hash[16];
 106         u8 randomizer[16];
 107 };
 108
 109 struct adv_entry {
 110         struct list_head list;
 111         bdaddr_t bdaddr;
 112         u8 bdaddr_type;
 113 };
 114
 115 #define NUM_REASSEMBLY 4
 116 struct hci_dev {
 117         struct list_head list;
 118         spinlock_t      lock;
 119         atomic_t        refcnt;
 120
 121         char            name[8];
 122         unsigned long   flags;
 123         __u16           id;
 124         __u8            bus;
 125         __u8            dev_type;
 126         bdaddr_t        bdaddr;
 127         __u8            dev_name[HCI_MAX_NAME_LENGTH];
 128         __u8            eir[HCI_MAX_EIR_LENGTH];
 129         __u8            dev_class[3];
 130         __u8            major_class;
 131         __u8            minor_class;
 132         __u8            features[8];
 133         __u8            extfeatures[8];
 134         __u8            commands[64];
 135         __u8            ssp_mode;
 136         __u8            hci_ver;
 137         __u16           hci_rev;
 138         __u8            lmp_ver;
 139         __u16           manufacturer;
 140         __le16          lmp_subver;
 141         __u16           voice_setting;
 142         __u8            io_capability;
 143
 144         __u16           pkt_type;
 145         __u16           esco_type;
 146         __u16           link_policy;
 147         __u16           link_mode;
 148
 149         __u32           idle_timeout;
 150         __u16           sniff_min_interval;
 151         __u16           sniff_max_interval;
 152
 153         unsigned int    auto_accept_delay;
 154
 155         unsigned long   quirks;
 156
 157         atomic_t        cmd_cnt;
 158         unsigned int    acl_cnt;
 159         unsigned int    sco_cnt;
 160         unsigned int    le_cnt;
 161
 162         unsigned int    acl_mtu;
 163         unsigned int    sco_mtu;
 164         unsigned int    le_mtu;
 165         unsigned int    acl_pkts;
 166         unsigned int    sco_pkts;
 167         unsigned int    le_pkts;
 168
 169         unsigned long   acl_last_tx;
 170         unsigned long   sco_last_tx;
 171         unsigned long   le_last_tx;
 172
 173         struct workqueue_struct *workqueue;
 174
 175         struct work_struct      power_on;
 176         struct work_struct      power_off;
 177         struct timer_list       off_timer;
 178
 179         struct timer_list       cmd_timer;
 180         struct tasklet_struct   cmd_task;
 181         struct tasklet_struct   rx_task;
 182         struct tasklet_struct   tx_task;
 183
 184         struct sk_buff_head     rx_q;
 185         struct sk_buff_head     raw_q;
 186         struct sk_buff_head     cmd_q;
 187
 188         struct sk_buff          *sent_cmd;
 189         struct sk_buff          *reassembly[NUM_REASSEMBLY];
 190
 191         struct mutex            req_lock;
 192         wait_queue_head_t       req_wait_q;
 193         __u32                   req_status;
 194         __u32                   req_result;
 195
 196         __u16                   init_last_cmd;
 197
 198         struct crypto_blkcipher *tfm;
 199
 200         struct inquiry_cache    inq_cache;
 201         struct hci_conn_hash    conn_hash;
 202         struct list_head        blacklist;
 203
 204         struct list_head        uuids;
 205
 206         struct list_head        link_keys;
 207
 208         struct list_head        remote_oob_data;
 209
 210         struct list_head        adv_entries;
 211         struct timer_list       adv_timer;
 212
 213         struct hci_dev_stats    stat;
 214
 215         struct sk_buff_head     driver_init;
 216
 217         void                    *driver_data;
 218         void                    *core_data;
 219
 220         atomic_t                promisc;
 221
 222         struct dentry           *debugfs;
 223
 224         struct device           *parent;
 225         struct device           dev;
 226
 227         struct rfkill           *rfkill;
 228
 229         struct module           *owner;
 230
 231         int (*open)(struct hci_dev *hdev);
 232         int (*close)(struct hci_dev *hdev);
 233         int (*flush)(struct hci_dev *hdev);
 234         int (*send)(struct sk_buff *skb);
 235         void (*destruct)(struct hci_dev *hdev);
 236         void (*notify)(struct hci_dev *hdev, unsigned int evt);
 237         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 238 };
 239
 240 struct hci_conn {
 241         struct list_head list;
 242
 243         atomic_t        refcnt;
 244
 245         bdaddr_t        dst;
 246         __u8            dst_type;
 247         __u16           handle;
 248         __u16           state;
 249         __u8            mode;
 250         __u8            type;
 251         __u8            out;
 252         __u8            attempt;
 253         __u8            dev_class[3];
 254         __u8            features[8];
 255         __u8            ssp_mode;
 256         __u16           interval;
 257         __u16           pkt_type;
 258         __u16           link_policy;
 259         __u32           link_mode;
 260         __u8            key_type;
 261         __u8            auth_type;
 262         __u8            sec_level;
 263         __u8            pending_sec_level;
 264         __u8            pin_length;
 265         __u8            enc_key_size;
 266         __u8            io_capability;
 267         __u8            power_save;
 268         __u16           disc_timeout;
 269         unsigned long   pend;
 270
 271         __u8            remote_cap;
 272         __u8            remote_oob;
 273         __u8            remote_auth;
 274
 275         unsigned int    sent;
 276
 277         struct sk_buff_head data_q;
 278
 279         struct timer_list disc_timer;
 280         struct timer_list idle_timer;
 281         struct timer_list auto_accept_timer;
 282
 283         struct work_struct work_add;
 284         struct work_struct work_del;
 285
 286         struct device   dev;
 287         atomic_t        devref;
 288
 289         struct hci_dev  *hdev;
 290         void            *l2cap_data;
 291         void            *sco_data;
 292
 293         struct hci_conn *link;
 294
 295         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
 296         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
 297         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
 298 };
 299
 300 extern struct hci_proto *hci_proto[];
 301 extern struct list_head hci_dev_list;
 302 extern struct list_head hci_cb_list;
 303 extern rwlock_t hci_dev_list_lock;
 304 extern rwlock_t hci_cb_list_lock;
 305
 306 /* ----- Inquiry cache ----- */
 307 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
 308 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
 309
 310 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
 311 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
 312 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
 313 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
 314
 315 static inline void inquiry_cache_init(struct hci_dev *hdev)
 316 {
 317         struct inquiry_cache *c = &hdev->inq_cache;
 318         spin_lock_init(&c->lock);
 319         c->list = NULL;
 320 }
 321
 322 static inline int inquiry_cache_empty(struct hci_dev *hdev)
 323 {
 324         struct inquiry_cache *c = &hdev->inq_cache;
 325         return c->list == NULL;
 326 }
 327
 328 static inline long inquiry_cache_age(struct hci_dev *hdev)
 329 {
 330         struct inquiry_cache *c = &hdev->inq_cache;
 331         return jiffies - c->timestamp;
 332 }
 333
 334 static inline long inquiry_entry_age(struct inquiry_entry *e)
 335 {
 336         return jiffies - e->timestamp;
 337 }
 338
 339 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
 340                                                         bdaddr_t *bdaddr);
 341 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
 342
 343 /* ----- HCI Connections ----- */
 344 enum {
 345         HCI_CONN_AUTH_PEND,
 346         HCI_CONN_REAUTH_PEND,
 347         HCI_CONN_ENCRYPT_PEND,
 348         HCI_CONN_RSWITCH_PEND,
 349         HCI_CONN_MODE_CHANGE_PEND,
 350         HCI_CONN_SCO_SETUP_PEND,
 351 };
 352
 353 static inline void hci_conn_hash_init(struct hci_dev *hdev)
 354 {
 355         struct hci_conn_hash *h = &hdev->conn_hash;
 356         INIT_LIST_HEAD(&h->list);
 357         spin_lock_init(&h->lock);
 358         h->acl_num = 0;
 359         h->sco_num = 0;
 360 }
 361
 362 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
 363 {
 364         struct hci_conn_hash *h = &hdev->conn_hash;
 365         list_add(&c->list, &h->list);
 366         switch (c->type) {
 367         case ACL_LINK:
 368                 h->acl_num++;
 369                 break;
 370         case LE_LINK:
 371                 h->le_num++;
 372                 break;
 373         case SCO_LINK:
 374         case ESCO_LINK:
 375                 h->sco_num++;
 376                 break;
 377         }
 378 }
 379
 380 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
 381 {
 382         struct hci_conn_hash *h = &hdev->conn_hash;
 383         list_del(&c->list);
 384         switch (c->type) {
 385         case ACL_LINK:
 386                 h->acl_num--;
 387                 break;
 388         case LE_LINK:
 389                 h->le_num--;
 390                 break;
 391         case SCO_LINK:
 392         case ESCO_LINK:
 393                 h->sco_num--;
 394                 break;
 395         }
 396 }
 397
 398 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
 399                                                                 __u16 handle)
 400 {
 401         struct hci_conn_hash *h = &hdev->conn_hash;
 402         struct list_head *p;
 403         struct hci_conn  *c;
 404
 405         list_for_each(p, &h->list) {
 406                 c = list_entry(p, struct hci_conn, list);
 407                 if (c->handle == handle)
 408                         return c;
 409         }
 410         return NULL;
 411 }
 412
 413 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
 414                                                         __u8 type, bdaddr_t *ba)
 415 {
 416         struct hci_conn_hash *h = &hdev->conn_hash;
 417         struct list_head *p;
 418         struct hci_conn  *c;
 419
 420         list_for_each(p, &h->list) {
 421                 c = list_entry(p, struct hci_conn, list);
 422                 if (c->type == type && !bacmp(&c->dst, ba))
 423                         return c;
 424         }
 425         return NULL;
 426 }
 427
 428 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
 429                                                         __u8 type, __u16 state)
 430 {
 431         struct hci_conn_hash *h = &hdev->conn_hash;
 432         struct list_head *p;
 433         struct hci_conn  *c;
 434
 435         list_for_each(p, &h->list) {
 436                 c = list_entry(p, struct hci_conn, list);
 437                 if (c->type == type && c->state == state)
 438                         return c;
 439         }
 440         return NULL;
 441 }
 442
 443 void hci_acl_connect(struct hci_conn *conn);
 444 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
 445 void hci_add_sco(struct hci_conn *conn, __u16 handle);
 446 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
 447 void hci_sco_setup(struct hci_conn *conn, __u8 status);
 448
 449 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
 450 int hci_conn_del(struct hci_conn *conn);
 451 void hci_conn_hash_flush(struct hci_dev *hdev);
 452 void hci_conn_check_pending(struct hci_dev *hdev);
 453
 454 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
 455                                                 __u8 sec_level, __u8 auth_type);
 456 int hci_conn_check_link_mode(struct hci_conn *conn);
 457 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
 458 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
 459 int hci_conn_change_link_key(struct hci_conn *conn);
 460 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
 461
 462 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
 463 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
 464
 465 void hci_conn_hold_device(struct hci_conn *conn);
 466 void hci_conn_put_device(struct hci_conn *conn);
 467
 468 static inline void hci_conn_hold(struct hci_conn *conn)
 469 {
 470         atomic_inc(&conn->refcnt);
 471         del_timer(&conn->disc_timer);
 472 }
 473
 474 static inline void hci_conn_put(struct hci_conn *conn)
 475 {
 476         if (atomic_dec_and_test(&conn->refcnt)) {
 477                 unsigned long timeo;
 478                 if (conn->type == ACL_LINK) {
 479                         del_timer(&conn->idle_timer);
 480                         if (conn->state == BT_CONNECTED) {
 481                                 timeo = msecs_to_jiffies(conn->disc_timeout);
 482                                 if (!conn->out)
 483                                         timeo *= 2;
 484                         } else {
 485                                 timeo = msecs_to_jiffies(10);
 486                         }
 487                 } else {
 488                         timeo = msecs_to_jiffies(10);
 489                 }
 490                 mod_timer(&conn->disc_timer, jiffies + timeo);
 491         }
 492 }
 493
 494 /* ----- HCI Devices ----- */
 495 static inline void __hci_dev_put(struct hci_dev *d)
 496 {
 497         if (atomic_dec_and_test(&d->refcnt))
 498                 d->destruct(d);
 499 }
 500
 501 static inline void hci_dev_put(struct hci_dev *d)
 502 {
 503         __hci_dev_put(d);
 504         module_put(d->owner);
 505 }
 506
 507 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
 508 {
 509         atomic_inc(&d->refcnt);
 510         return d;
 511 }
 512
 513 static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
 514 {
 515         if (try_module_get(d->owner))
 516                 return __hci_dev_hold(d);
 517         return NULL;
 518 }
 519
 520 #define hci_dev_lock(d)         spin_lock(&d->lock)
 521 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
 522 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
 523 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
 524
 525 struct hci_dev *hci_dev_get(int index);
 526 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
 527
 528 struct hci_dev *hci_alloc_dev(void);
 529 void hci_free_dev(struct hci_dev *hdev);
 530 int hci_register_dev(struct hci_dev *hdev);
 531 int hci_unregister_dev(struct hci_dev *hdev);
 532 int hci_suspend_dev(struct hci_dev *hdev);
 533 int hci_resume_dev(struct hci_dev *hdev);
 534 int hci_dev_open(__u16 dev);
 535 int hci_dev_close(__u16 dev);
 536 int hci_dev_reset(__u16 dev);
 537 int hci_dev_reset_stat(__u16 dev);
 538 int hci_dev_cmd(unsigned int cmd, void __user *arg);
 539 int hci_get_dev_list(void __user *arg);
 540 int hci_get_dev_info(void __user *arg);
 541 int hci_get_conn_list(void __user *arg);
 542 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
 543 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 544 int hci_inquiry(void __user *arg);
 545
 546 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
 547 int hci_blacklist_clear(struct hci_dev *hdev);
 548 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
 549 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
 550
 551 int hci_uuids_clear(struct hci_dev *hdev);
 552
 553 int hci_link_keys_clear(struct hci_dev *hdev);
 554 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 555 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
 556                         bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
 557 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
 558 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
 559                                         bdaddr_t *bdaddr, u8 type);
 560 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
 561                         u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
 562 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
 563
 564 int hci_remote_oob_data_clear(struct hci_dev *hdev);
 565 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
 566                                                         bdaddr_t *bdaddr);
 567 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 568                                                                 u8 *randomizer);
 569 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 570
 571 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
 572 int hci_adv_entries_clear(struct hci_dev *hdev);
 573 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
 574 int hci_add_adv_entry(struct hci_dev *hdev,
 575                                         struct hci_ev_le_advertising_info *ev);
 576
 577 void hci_del_off_timer(struct hci_dev *hdev);
 578
 579 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 580
 581 int hci_recv_frame(struct sk_buff *skb);
 582 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 583 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 584
 585 int hci_register_sysfs(struct hci_dev *hdev);
 586 void hci_unregister_sysfs(struct hci_dev *hdev);
 587 void hci_conn_init_sysfs(struct hci_conn *conn);
 588 void hci_conn_add_sysfs(struct hci_conn *conn);
 589 void hci_conn_del_sysfs(struct hci_conn *conn);
 590
 591 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
 592
 593 /* ----- LMP capabilities ----- */
 594 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
 595 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
 596 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
 597 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
 598 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
 599 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
 600 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
 601 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
 602
 603 /* ----- Extended LMP capabilities ----- */
 604 #define lmp_host_le_capable(dev)   ((dev)->extfeatures[0] & LMP_HOST_LE)
 605
 606 /* ----- HCI protocols ----- */
 607 struct hci_proto {
 608         char            *name;
 609         unsigned int    id;
 610         unsigned long   flags;
 611
 612         void            *priv;
 613
 614         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr,
 615                                                                 __u8 type);
 616         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
 617         int (*disconn_ind)      (struct hci_conn *conn);
 618         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
 619         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb,
 620                                                                 __u16 flags);
 621         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
 622         int (*security_cfm)     (struct hci_conn *conn, __u8 status,
 623                                                                 __u8 encrypt);
 624 };
 625
 626 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
 627                                                                 __u8 type)
 628 {
 629         register struct hci_proto *hp;
 630         int mask = 0;
 631
 632         hp = hci_proto[HCI_PROTO_L2CAP];
 633         if (hp && hp->connect_ind)
 634                 mask |= hp->connect_ind(hdev, bdaddr, type);
 635
 636         hp = hci_proto[HCI_PROTO_SCO];
 637         if (hp && hp->connect_ind)
 638                 mask |= hp->connect_ind(hdev, bdaddr, type);
 639
 640         return mask;
 641 }
 642
 643 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
 644 {
 645         register struct hci_proto *hp;
 646
 647         hp = hci_proto[HCI_PROTO_L2CAP];
 648         if (hp && hp->connect_cfm)
 649                 hp->connect_cfm(conn, status);
 650
 651         hp = hci_proto[HCI_PROTO_SCO];
 652         if (hp && hp->connect_cfm)
 653                 hp->connect_cfm(conn, status);
 654
 655         if (conn->connect_cfm_cb)
 656                 conn->connect_cfm_cb(conn, status);
 657 }
 658
 659 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
 660 {
 661         register struct hci_proto *hp;
 662         int reason = 0x13;
 663
 664         hp = hci_proto[HCI_PROTO_L2CAP];
 665         if (hp && hp->disconn_ind)
 666                 reason = hp->disconn_ind(conn);
 667
 668         hp = hci_proto[HCI_PROTO_SCO];
 669         if (hp && hp->disconn_ind)
 670                 reason = hp->disconn_ind(conn);
 671
 672         return reason;
 673 }
 674
 675 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
 676 {
 677         register struct hci_proto *hp;
 678
 679         hp = hci_proto[HCI_PROTO_L2CAP];
 680         if (hp && hp->disconn_cfm)
 681                 hp->disconn_cfm(conn, reason);
 682
 683         hp = hci_proto[HCI_PROTO_SCO];
 684         if (hp && hp->disconn_cfm)
 685                 hp->disconn_cfm(conn, reason);
 686
 687         if (conn->disconn_cfm_cb)
 688                 conn->disconn_cfm_cb(conn, reason);
 689 }
 690
 691 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
 692 {
 693         register struct hci_proto *hp;
 694         __u8 encrypt;
 695
 696         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 697                 return;
 698
 699         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 700
 701         hp = hci_proto[HCI_PROTO_L2CAP];
 702         if (hp && hp->security_cfm)
 703                 hp->security_cfm(conn, status, encrypt);
 704
 705         hp = hci_proto[HCI_PROTO_SCO];
 706         if (hp && hp->security_cfm)
 707                 hp->security_cfm(conn, status, encrypt);
 708
 709         if (conn->security_cfm_cb)
 710                 conn->security_cfm_cb(conn, status);
 711 }
 712
 713 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
 714                                                                 __u8 encrypt)
 715 {
 716         register struct hci_proto *hp;
 717
 718         hp = hci_proto[HCI_PROTO_L2CAP];
 719         if (hp && hp->security_cfm)
 720                 hp->security_cfm(conn, status, encrypt);
 721
 722         hp = hci_proto[HCI_PROTO_SCO];
 723         if (hp && hp->security_cfm)
 724                 hp->security_cfm(conn, status, encrypt);
 725
 726         if (conn->security_cfm_cb)
 727                 conn->security_cfm_cb(conn, status);
 728 }
 729
 730 int hci_register_proto(struct hci_proto *hproto);
 731 int hci_unregister_proto(struct hci_proto *hproto);
 732
 733 /* ----- HCI callbacks ----- */
 734 struct hci_cb {
 735         struct list_head list;
 736
 737         char *name;
 738
 739         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
 740                                                                 __u8 encrypt);
 741         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
 742         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
 743 };
 744
 745 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
 746 {
 747         struct list_head *p;
 748         __u8 encrypt;
 749
 750         hci_proto_auth_cfm(conn, status);
 751
 752         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
 753                 return;
 754
 755         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
 756
 757         read_lock_bh(&hci_cb_list_lock);
 758         list_for_each(p, &hci_cb_list) {
 759                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 760                 if (cb->security_cfm)
 761                         cb->security_cfm(conn, status, encrypt);
 762         }
 763         read_unlock_bh(&hci_cb_list_lock);
 764 }
 765
 766 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
 767                                                                 __u8 encrypt)
 768 {
 769         struct list_head *p;
 770
 771         if (conn->sec_level == BT_SECURITY_SDP)
 772                 conn->sec_level = BT_SECURITY_LOW;
 773
 774         if (conn->pending_sec_level > conn->sec_level)
 775                 conn->sec_level = conn->pending_sec_level;
 776
 777         hci_proto_encrypt_cfm(conn, status, encrypt);
 778
 779         read_lock_bh(&hci_cb_list_lock);
 780         list_for_each(p, &hci_cb_list) {
 781                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 782                 if (cb->security_cfm)
 783                         cb->security_cfm(conn, status, encrypt);
 784         }
 785         read_unlock_bh(&hci_cb_list_lock);
 786 }
 787
 788 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
 789 {
 790         struct list_head *p;
 791
 792         read_lock_bh(&hci_cb_list_lock);
 793         list_for_each(p, &hci_cb_list) {
 794                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 795                 if (cb->key_change_cfm)
 796                         cb->key_change_cfm(conn, status);
 797         }
 798         read_unlock_bh(&hci_cb_list_lock);
 799 }
 800
 801 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
 802                                                                 __u8 role)
 803 {
 804         struct list_head *p;
 805
 806         read_lock_bh(&hci_cb_list_lock);
 807         list_for_each(p, &hci_cb_list) {
 808                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
 809                 if (cb->role_switch_cfm)
 810                         cb->role_switch_cfm(conn, status, role);
 811         }
 812         read_unlock_bh(&hci_cb_list_lock);
 813 }
 814
 815 int hci_register_cb(struct hci_cb *hcb);
 816 int hci_unregister_cb(struct hci_cb *hcb);
 817
 818 int hci_register_notifier(struct notifier_block *nb);
 819 int hci_unregister_notifier(struct notifier_block *nb);
 820
 821 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
 822 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
 823 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
 824
 825 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
 826
 827 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
 828
 829 /* ----- HCI Sockets ----- */
 830 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
 831                                                         struct sock *skip_sk);
 832
 833 /* Management interface */
 834 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 835 int mgmt_index_added(u16 index);
 836 int mgmt_index_removed(u16 index);
 837 int mgmt_powered(u16 index, u8 powered);
 838 int mgmt_discoverable(u16 index, u8 discoverable);
 839 int mgmt_connectable(u16 index, u8 connectable);
 840 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
 841 int mgmt_connected(u16 index, bdaddr_t *bdaddr);
 842 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
 843 int mgmt_disconnect_failed(u16 index);
 844 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 845 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
 846 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 847 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 848 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
 849                                                         u8 confirm_hint);
 850 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
 851 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
 852                                                                 u8 status);
 853 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
 854 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
 855 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
 856                                                                 u8 status);
 857 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
 858                                                                 u8 *eir);
 859 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
 860 int mgmt_discovering(u16 index, u8 discovering);
 861
 862 /* HCI info for socket */
 863 #define hci_pi(sk) ((struct hci_pinfo *) sk)
 864
 865 struct hci_pinfo {
 866         struct bt_sock    bt;
 867         struct hci_dev    *hdev;
 868         struct hci_filter filter;
 869         __u32             cmsg_mask;
 870         unsigned short   channel;
 871 };
 872
 873 /* HCI security filter */
 874 #define HCI_SFLT_MAX_OGF  5
 875
 876 struct hci_sec_filter {
 877         __u32 type_mask;
 878         __u32 event_mask[2];
 879         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
 880 };
 881
 882 /* ----- HCI requests ----- */
 883 #define HCI_REQ_DONE      0
 884 #define HCI_REQ_PEND      1
 885 #define HCI_REQ_CANCELED  2
 886
 887 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
 888 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
 889
 890 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
 891
 892 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 893                                         u16 latency, u16 to_multiplier);
 894 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 895                                                         __u8 ltk[16]);
 896 void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
 897 void hci_le_ltk_neg_reply(struct hci_conn *conn);
 898
 899 #endif /* __HCI_CORE_H */