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