net/bluetooth/mgmt.c

   1 /*
   2    BlueZ - Bluetooth protocol stack for Linux
   3
   4    Copyright (C) 2010  Nokia Corporation
   5    Copyright (C) 2011-2012 Intel Corporation
   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 /* Bluetooth HCI Management interface */
  26
  27 #include <linux/kernel.h>
  28 #include <linux/uaccess.h>
  29 #include <linux/module.h>
  30 #include <asm/unaligned.h>
  31
  32 #include <net/bluetooth/bluetooth.h>
  33 #include <net/bluetooth/hci_core.h>
  34 #include <net/bluetooth/mgmt.h>
  35 #include <net/bluetooth/smp.h>
  36
  37 bool enable_hs;
  38
  39 #define MGMT_VERSION    1
  40 #define MGMT_REVISION   1
  41
  42 static const u16 mgmt_commands[] = {
  43         MGMT_OP_READ_INDEX_LIST,
  44         MGMT_OP_READ_INFO,
  45         MGMT_OP_SET_POWERED,
  46         MGMT_OP_SET_DISCOVERABLE,
  47         MGMT_OP_SET_CONNECTABLE,
  48         MGMT_OP_SET_FAST_CONNECTABLE,
  49         MGMT_OP_SET_PAIRABLE,
  50         MGMT_OP_SET_LINK_SECURITY,
  51         MGMT_OP_SET_SSP,
  52         MGMT_OP_SET_HS,
  53         MGMT_OP_SET_LE,
  54         MGMT_OP_SET_DEV_CLASS,
  55         MGMT_OP_SET_LOCAL_NAME,
  56         MGMT_OP_ADD_UUID,
  57         MGMT_OP_REMOVE_UUID,
  58         MGMT_OP_LOAD_LINK_KEYS,
  59         MGMT_OP_LOAD_LONG_TERM_KEYS,
  60         MGMT_OP_DISCONNECT,
  61         MGMT_OP_GET_CONNECTIONS,
  62         MGMT_OP_PIN_CODE_REPLY,
  63         MGMT_OP_PIN_CODE_NEG_REPLY,
  64         MGMT_OP_SET_IO_CAPABILITY,
  65         MGMT_OP_PAIR_DEVICE,
  66         MGMT_OP_CANCEL_PAIR_DEVICE,
  67         MGMT_OP_UNPAIR_DEVICE,
  68         MGMT_OP_USER_CONFIRM_REPLY,
  69         MGMT_OP_USER_CONFIRM_NEG_REPLY,
  70         MGMT_OP_USER_PASSKEY_REPLY,
  71         MGMT_OP_USER_PASSKEY_NEG_REPLY,
  72         MGMT_OP_READ_LOCAL_OOB_DATA,
  73         MGMT_OP_ADD_REMOTE_OOB_DATA,
  74         MGMT_OP_REMOVE_REMOTE_OOB_DATA,
  75         MGMT_OP_START_DISCOVERY,
  76         MGMT_OP_STOP_DISCOVERY,
  77         MGMT_OP_CONFIRM_NAME,
  78         MGMT_OP_BLOCK_DEVICE,
  79         MGMT_OP_UNBLOCK_DEVICE,
  80         MGMT_OP_SET_DEVICE_ID,
  81 };
  82
  83 static const u16 mgmt_events[] = {
  84         MGMT_EV_CONTROLLER_ERROR,
  85         MGMT_EV_INDEX_ADDED,
  86         MGMT_EV_INDEX_REMOVED,
  87         MGMT_EV_NEW_SETTINGS,
  88         MGMT_EV_CLASS_OF_DEV_CHANGED,
  89         MGMT_EV_LOCAL_NAME_CHANGED,
  90         MGMT_EV_NEW_LINK_KEY,
  91         MGMT_EV_NEW_LONG_TERM_KEY,
  92         MGMT_EV_DEVICE_CONNECTED,
  93         MGMT_EV_DEVICE_DISCONNECTED,
  94         MGMT_EV_CONNECT_FAILED,
  95         MGMT_EV_PIN_CODE_REQUEST,
  96         MGMT_EV_USER_CONFIRM_REQUEST,
  97         MGMT_EV_USER_PASSKEY_REQUEST,
  98         MGMT_EV_AUTH_FAILED,
  99         MGMT_EV_DEVICE_FOUND,
 100         MGMT_EV_DISCOVERING,
 101         MGMT_EV_DEVICE_BLOCKED,
 102         MGMT_EV_DEVICE_UNBLOCKED,
 103         MGMT_EV_DEVICE_UNPAIRED,
 104 };
 105
 106 /*
 107  * These LE scan and inquiry parameters were chosen according to LE General
 108  * Discovery Procedure specification.
 109  */
 110 #define LE_SCAN_TYPE                    0x01
 111 #define LE_SCAN_WIN                     0x12
 112 #define LE_SCAN_INT                     0x12
 113 #define LE_SCAN_TIMEOUT_LE_ONLY         10240   /* TGAP(gen_disc_scan_min) */
 114 #define LE_SCAN_TIMEOUT_BREDR_LE        5120    /* TGAP(100)/2 */
 115
 116 #define INQUIRY_LEN_BREDR               0x08    /* TGAP(100) */
 117 #define INQUIRY_LEN_BREDR_LE            0x04    /* TGAP(100)/2 */
 118
 119 #define CACHE_TIMEOUT   msecs_to_jiffies(2 * 1000)
 120
 121 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
 122                                 !test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 123
 124 struct pending_cmd {
 125         struct list_head list;
 126         u16 opcode;
 127         int index;
 128         void *param;
 129         struct sock *sk;
 130         void *user_data;
 131 };
 132
 133 /* HCI to MGMT error code conversion table */
 134 static u8 mgmt_status_table[] = {
 135         MGMT_STATUS_SUCCESS,
 136         MGMT_STATUS_UNKNOWN_COMMAND,    /* Unknown Command */
 137         MGMT_STATUS_NOT_CONNECTED,      /* No Connection */
 138         MGMT_STATUS_FAILED,             /* Hardware Failure */
 139         MGMT_STATUS_CONNECT_FAILED,     /* Page Timeout */
 140         MGMT_STATUS_AUTH_FAILED,        /* Authentication Failed */
 141         MGMT_STATUS_NOT_PAIRED,         /* PIN or Key Missing */
 142         MGMT_STATUS_NO_RESOURCES,       /* Memory Full */
 143         MGMT_STATUS_TIMEOUT,            /* Connection Timeout */
 144         MGMT_STATUS_NO_RESOURCES,       /* Max Number of Connections */
 145         MGMT_STATUS_NO_RESOURCES,       /* Max Number of SCO Connections */
 146         MGMT_STATUS_ALREADY_CONNECTED,  /* ACL Connection Exists */
 147         MGMT_STATUS_BUSY,               /* Command Disallowed */
 148         MGMT_STATUS_NO_RESOURCES,       /* Rejected Limited Resources */
 149         MGMT_STATUS_REJECTED,           /* Rejected Security */
 150         MGMT_STATUS_REJECTED,           /* Rejected Personal */
 151         MGMT_STATUS_TIMEOUT,            /* Host Timeout */
 152         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Feature */
 153         MGMT_STATUS_INVALID_PARAMS,     /* Invalid Parameters */
 154         MGMT_STATUS_DISCONNECTED,       /* OE User Ended Connection */
 155         MGMT_STATUS_NO_RESOURCES,       /* OE Low Resources */
 156         MGMT_STATUS_DISCONNECTED,       /* OE Power Off */
 157         MGMT_STATUS_DISCONNECTED,       /* Connection Terminated */
 158         MGMT_STATUS_BUSY,               /* Repeated Attempts */
 159         MGMT_STATUS_REJECTED,           /* Pairing Not Allowed */
 160         MGMT_STATUS_FAILED,             /* Unknown LMP PDU */
 161         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Remote Feature */
 162         MGMT_STATUS_REJECTED,           /* SCO Offset Rejected */
 163         MGMT_STATUS_REJECTED,           /* SCO Interval Rejected */
 164         MGMT_STATUS_REJECTED,           /* Air Mode Rejected */
 165         MGMT_STATUS_INVALID_PARAMS,     /* Invalid LMP Parameters */
 166         MGMT_STATUS_FAILED,             /* Unspecified Error */
 167         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported LMP Parameter Value */
 168         MGMT_STATUS_FAILED,             /* Role Change Not Allowed */
 169         MGMT_STATUS_TIMEOUT,            /* LMP Response Timeout */
 170         MGMT_STATUS_FAILED,             /* LMP Error Transaction Collision */
 171         MGMT_STATUS_FAILED,             /* LMP PDU Not Allowed */
 172         MGMT_STATUS_REJECTED,           /* Encryption Mode Not Accepted */
 173         MGMT_STATUS_FAILED,             /* Unit Link Key Used */
 174         MGMT_STATUS_NOT_SUPPORTED,      /* QoS Not Supported */
 175         MGMT_STATUS_TIMEOUT,            /* Instant Passed */
 176         MGMT_STATUS_NOT_SUPPORTED,      /* Pairing Not Supported */
 177         MGMT_STATUS_FAILED,             /* Transaction Collision */
 178         MGMT_STATUS_INVALID_PARAMS,     /* Unacceptable Parameter */
 179         MGMT_STATUS_REJECTED,           /* QoS Rejected */
 180         MGMT_STATUS_NOT_SUPPORTED,      /* Classification Not Supported */
 181         MGMT_STATUS_REJECTED,           /* Insufficient Security */
 182         MGMT_STATUS_INVALID_PARAMS,     /* Parameter Out Of Range */
 183         MGMT_STATUS_BUSY,               /* Role Switch Pending */
 184         MGMT_STATUS_FAILED,             /* Slot Violation */
 185         MGMT_STATUS_FAILED,             /* Role Switch Failed */
 186         MGMT_STATUS_INVALID_PARAMS,     /* EIR Too Large */
 187         MGMT_STATUS_NOT_SUPPORTED,      /* Simple Pairing Not Supported */
 188         MGMT_STATUS_BUSY,               /* Host Busy Pairing */
 189         MGMT_STATUS_REJECTED,           /* Rejected, No Suitable Channel */
 190         MGMT_STATUS_BUSY,               /* Controller Busy */
 191         MGMT_STATUS_INVALID_PARAMS,     /* Unsuitable Connection Interval */
 192         MGMT_STATUS_TIMEOUT,            /* Directed Advertising Timeout */
 193         MGMT_STATUS_AUTH_FAILED,        /* Terminated Due to MIC Failure */
 194         MGMT_STATUS_CONNECT_FAILED,     /* Connection Establishment Failed */
 195         MGMT_STATUS_CONNECT_FAILED,     /* MAC Connection Failed */
 196 };
 197
 198 static u8 mgmt_status(u8 hci_status)
 199 {
 200         if (hci_status < ARRAY_SIZE(mgmt_status_table))
 201                 return mgmt_status_table[hci_status];
 202
 203         return MGMT_STATUS_FAILED;
 204 }
 205
 206 static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)
 207 {
 208         struct sk_buff *skb;
 209         struct mgmt_hdr *hdr;
 210         struct mgmt_ev_cmd_status *ev;
 211         int err;
 212
 213         BT_DBG("sock %p, index %u, cmd %u, status %u", sk, index, cmd, status);
 214
 215         skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_ATOMIC);
 216         if (!skb)
 217                 return -ENOMEM;
 218
 219         hdr = (void *) skb_put(skb, sizeof(*hdr));
 220
 221         hdr->opcode = cpu_to_le16(MGMT_EV_CMD_STATUS);
 222         hdr->index = cpu_to_le16(index);
 223         hdr->len = cpu_to_le16(sizeof(*ev));
 224
 225         ev = (void *) skb_put(skb, sizeof(*ev));
 226         ev->status = status;
 227         ev->opcode = cpu_to_le16(cmd);
 228
 229         err = sock_queue_rcv_skb(sk, skb);
 230         if (err < 0)
 231                 kfree_skb(skb);
 232
 233         return err;
 234 }
 235
 236 static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
 237                         void *rp, size_t rp_len)
 238 {
 239         struct sk_buff *skb;
 240         struct mgmt_hdr *hdr;
 241         struct mgmt_ev_cmd_complete *ev;
 242         int err;
 243
 244         BT_DBG("sock %p", sk);
 245
 246         skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + rp_len, GFP_ATOMIC);
 247         if (!skb)
 248                 return -ENOMEM;
 249
 250         hdr = (void *) skb_put(skb, sizeof(*hdr));
 251
 252         hdr->opcode = cpu_to_le16(MGMT_EV_CMD_COMPLETE);
 253         hdr->index = cpu_to_le16(index);
 254         hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
 255
 256         ev = (void *) skb_put(skb, sizeof(*ev) + rp_len);
 257         ev->opcode = cpu_to_le16(cmd);
 258         ev->status = status;
 259
 260         if (rp)
 261                 memcpy(ev->data, rp, rp_len);
 262
 263         err = sock_queue_rcv_skb(sk, skb);
 264         if (err < 0)
 265                 kfree_skb(skb);
 266
 267         return err;
 268 }
 269
 270 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
 271                         u16 data_len)
 272 {
 273         struct mgmt_rp_read_version rp;
 274
 275         BT_DBG("sock %p", sk);
 276
 277         rp.version = MGMT_VERSION;
 278         rp.revision = __constant_cpu_to_le16(MGMT_REVISION);
 279
 280         return cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0, &rp,
 281                             sizeof(rp));
 282 }
 283
 284 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
 285                          u16 data_len)
 286 {
 287         struct mgmt_rp_read_commands *rp;
 288         const u16 num_commands = ARRAY_SIZE(mgmt_commands);
 289         const u16 num_events = ARRAY_SIZE(mgmt_events);
 290         __le16 *opcode;
 291         size_t rp_size;
 292         int i, err;
 293
 294         BT_DBG("sock %p", sk);
 295
 296         rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
 297
 298         rp = kmalloc(rp_size, GFP_KERNEL);
 299         if (!rp)
 300                 return -ENOMEM;
 301
 302         rp->num_commands = __constant_cpu_to_le16(num_commands);
 303         rp->num_events = __constant_cpu_to_le16(num_events);
 304
 305         for (i = 0, opcode = rp->opcodes; i < num_commands; i++, opcode++)
 306                 put_unaligned_le16(mgmt_commands[i], opcode);
 307
 308         for (i = 0; i < num_events; i++, opcode++)
 309                 put_unaligned_le16(mgmt_events[i], opcode);
 310
 311         err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0, rp,
 312                            rp_size);
 313         kfree(rp);
 314
 315         return err;
 316 }
 317
 318 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 319                            u16 data_len)
 320 {
 321         struct mgmt_rp_read_index_list *rp;
 322         struct list_head *p;
 323         struct hci_dev *d;
 324         size_t rp_len;
 325         u16 count;
 326         int i, err;
 327
 328         BT_DBG("sock %p", sk);
 329
 330         read_lock(&hci_dev_list_lock);
 331
 332         count = 0;
 333         list_for_each(p, &hci_dev_list) {
 334                 count++;
 335         }
 336
 337         rp_len = sizeof(*rp) + (2 * count);
 338         rp = kmalloc(rp_len, GFP_ATOMIC);
 339         if (!rp) {
 340                 read_unlock(&hci_dev_list_lock);
 341                 return -ENOMEM;
 342         }
 343
 344         rp->num_controllers = cpu_to_le16(count);
 345
 346         i = 0;
 347         list_for_each_entry(d, &hci_dev_list, list) {
 348                 if (test_bit(HCI_SETUP, &d->dev_flags))
 349                         continue;
 350
 351                 rp->index[i++] = cpu_to_le16(d->id);
 352                 BT_DBG("Added hci%u", d->id);
 353         }
 354
 355         read_unlock(&hci_dev_list_lock);
 356
 357         err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp,
 358                            rp_len);
 359
 360         kfree(rp);
 361
 362         return err;
 363 }
 364
 365 static u32 get_supported_settings(struct hci_dev *hdev)
 366 {
 367         u32 settings = 0;
 368
 369         settings |= MGMT_SETTING_POWERED;
 370         settings |= MGMT_SETTING_CONNECTABLE;
 371         settings |= MGMT_SETTING_FAST_CONNECTABLE;
 372         settings |= MGMT_SETTING_DISCOVERABLE;
 373         settings |= MGMT_SETTING_PAIRABLE;
 374
 375         if (hdev->features[6] & LMP_SIMPLE_PAIR)
 376                 settings |= MGMT_SETTING_SSP;
 377
 378         if (!(hdev->features[4] & LMP_NO_BREDR)) {
 379                 settings |= MGMT_SETTING_BREDR;
 380                 settings |= MGMT_SETTING_LINK_SECURITY;
 381         }
 382
 383         if (enable_hs)
 384                 settings |= MGMT_SETTING_HS;
 385
 386         if (hdev->features[4] & LMP_LE)
 387                 settings |= MGMT_SETTING_LE;
 388
 389         return settings;
 390 }
 391
 392 static u32 get_current_settings(struct hci_dev *hdev)
 393 {
 394         u32 settings = 0;
 395
 396         if (hdev_is_powered(hdev))
 397                 settings |= MGMT_SETTING_POWERED;
 398
 399         if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 400                 settings |= MGMT_SETTING_CONNECTABLE;
 401
 402         if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
 403                 settings |= MGMT_SETTING_DISCOVERABLE;
 404
 405         if (test_bit(HCI_PAIRABLE, &hdev->dev_flags))
 406                 settings |= MGMT_SETTING_PAIRABLE;
 407
 408         if (!(hdev->features[4] & LMP_NO_BREDR))
 409                 settings |= MGMT_SETTING_BREDR;
 410
 411         if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
 412                 settings |= MGMT_SETTING_LE;
 413
 414         if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
 415                 settings |= MGMT_SETTING_LINK_SECURITY;
 416
 417         if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
 418                 settings |= MGMT_SETTING_SSP;
 419
 420         if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
 421                 settings |= MGMT_SETTING_HS;
 422
 423         return settings;
 424 }
 425
 426 #define PNP_INFO_SVCLASS_ID             0x1200
 427
 428 static u8 bluetooth_base_uuid[] = {
 429                         0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
 430                         0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 431 };
 432
 433 static u16 get_uuid16(u8 *uuid128)
 434 {
 435         u32 val;
 436         int i;
 437
 438         for (i = 0; i < 12; i++) {
 439                 if (bluetooth_base_uuid[i] != uuid128[i])
 440                         return 0;
 441         }
 442
 443         val = get_unaligned_le32(&uuid128[12]);
 444         if (val > 0xffff)
 445                 return 0;
 446
 447         return (u16) val;
 448 }
 449
 450 static void create_eir(struct hci_dev *hdev, u8 *data)
 451 {
 452         u8 *ptr = data;
 453         u16 eir_len = 0;
 454         u16 uuid16_list[HCI_MAX_EIR_LENGTH / sizeof(u16)];
 455         int i, truncated = 0;
 456         struct bt_uuid *uuid;
 457         size_t name_len;
 458
 459         name_len = strlen(hdev->dev_name);
 460
 461         if (name_len > 0) {
 462                 /* EIR Data type */
 463                 if (name_len > 48) {
 464                         name_len = 48;
 465                         ptr[1] = EIR_NAME_SHORT;
 466                 } else
 467                         ptr[1] = EIR_NAME_COMPLETE;
 468
 469                 /* EIR Data length */
 470                 ptr[0] = name_len + 1;
 471
 472                 memcpy(ptr + 2, hdev->dev_name, name_len);
 473
 474                 eir_len += (name_len + 2);
 475                 ptr += (name_len + 2);
 476         }
 477
 478         if (hdev->inq_tx_power) {
 479                 ptr[0] = 2;
 480                 ptr[1] = EIR_TX_POWER;
 481                 ptr[2] = (u8) hdev->inq_tx_power;
 482
 483                 eir_len += 3;
 484                 ptr += 3;
 485         }
 486
 487         if (hdev->devid_source > 0) {
 488                 ptr[0] = 9;
 489                 ptr[1] = EIR_DEVICE_ID;
 490
 491                 put_unaligned_le16(hdev->devid_source, ptr + 2);
 492                 put_unaligned_le16(hdev->devid_vendor, ptr + 4);
 493                 put_unaligned_le16(hdev->devid_product, ptr + 6);
 494                 put_unaligned_le16(hdev->devid_version, ptr + 8);
 495
 496                 eir_len += 10;
 497                 ptr += 10;
 498         }
 499
 500         memset(uuid16_list, 0, sizeof(uuid16_list));
 501
 502         /* Group all UUID16 types */
 503         list_for_each_entry(uuid, &hdev->uuids, list) {
 504                 u16 uuid16;
 505
 506                 uuid16 = get_uuid16(uuid->uuid);
 507                 if (uuid16 == 0)
 508                         return;
 509
 510                 if (uuid16 < 0x1100)
 511                         continue;
 512
 513                 if (uuid16 == PNP_INFO_SVCLASS_ID)
 514                         continue;
 515
 516                 /* Stop if not enough space to put next UUID */
 517                 if (eir_len + 2 + sizeof(u16) > HCI_MAX_EIR_LENGTH) {
 518                         truncated = 1;
 519                         break;
 520                 }
 521
 522                 /* Check for duplicates */
 523                 for (i = 0; uuid16_list[i] != 0; i++)
 524                         if (uuid16_list[i] == uuid16)
 525                                 break;
 526
 527                 if (uuid16_list[i] == 0) {
 528                         uuid16_list[i] = uuid16;
 529                         eir_len += sizeof(u16);
 530                 }
 531         }
 532
 533         if (uuid16_list[0] != 0) {
 534                 u8 *length = ptr;
 535
 536                 /* EIR Data type */
 537                 ptr[1] = truncated ? EIR_UUID16_SOME : EIR_UUID16_ALL;
 538
 539                 ptr += 2;
 540                 eir_len += 2;
 541
 542                 for (i = 0; uuid16_list[i] != 0; i++) {
 543                         *ptr++ = (uuid16_list[i] & 0x00ff);
 544                         *ptr++ = (uuid16_list[i] & 0xff00) >> 8;
 545                 }
 546
 547                 /* EIR Data length */
 548                 *length = (i * sizeof(u16)) + 1;
 549         }
 550 }
 551
 552 static int update_eir(struct hci_dev *hdev)
 553 {
 554         struct hci_cp_write_eir cp;
 555
 556         if (!hdev_is_powered(hdev))
 557                 return 0;
 558
 559         if (!(hdev->features[6] & LMP_EXT_INQ))
 560                 return 0;
 561
 562         if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
 563                 return 0;
 564
 565         if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
 566                 return 0;
 567
 568         memset(&cp, 0, sizeof(cp));
 569
 570         create_eir(hdev, cp.data);
 571
 572         if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
 573                 return 0;
 574
 575         memcpy(hdev->eir, cp.data, sizeof(cp.data));
 576
 577         return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
 578 }
 579
 580 static u8 get_service_classes(struct hci_dev *hdev)
 581 {
 582         struct bt_uuid *uuid;
 583         u8 val = 0;
 584
 585         list_for_each_entry(uuid, &hdev->uuids, list)
 586                 val |= uuid->svc_hint;
 587
 588         return val;
 589 }
 590
 591 static int update_class(struct hci_dev *hdev)
 592 {
 593         u8 cod[3];
 594         int err;
 595
 596         BT_DBG("%s", hdev->name);
 597
 598         if (!hdev_is_powered(hdev))
 599                 return 0;
 600
 601         if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
 602                 return 0;
 603
 604         cod[0] = hdev->minor_class;
 605         cod[1] = hdev->major_class;
 606         cod[2] = get_service_classes(hdev);
 607
 608         if (memcmp(cod, hdev->dev_class, 3) == 0)
 609                 return 0;
 610
 611         err = hci_send_cmd(hdev, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
 612         if (err == 0)
 613                 set_bit(HCI_PENDING_CLASS, &hdev->dev_flags);
 614
 615         return err;
 616 }
 617
 618 static void service_cache_off(struct work_struct *work)
 619 {
 620         struct hci_dev *hdev = container_of(work, struct hci_dev,
 621                                             service_cache.work);
 622
 623         if (!test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
 624                 return;
 625
 626         hci_dev_lock(hdev);
 627
 628         update_eir(hdev);
 629         update_class(hdev);
 630
 631         hci_dev_unlock(hdev);
 632 }
 633
 634 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
 635 {
 636         if (test_and_set_bit(HCI_MGMT, &hdev->dev_flags))
 637                 return;
 638
 639         INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
 640
 641         /* Non-mgmt controlled devices get this bit set
 642          * implicitly so that pairing works for them, however
 643          * for mgmt we require user-space to explicitly enable
 644          * it
 645          */
 646         clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
 647 }
 648
 649 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
 650                                 void *data, u16 data_len)
 651 {
 652         struct mgmt_rp_read_info rp;
 653
 654         BT_DBG("sock %p %s", sk, hdev->name);
 655
 656         hci_dev_lock(hdev);
 657
 658         memset(&rp, 0, sizeof(rp));
 659
 660         bacpy(&rp.bdaddr, &hdev->bdaddr);
 661
 662         rp.version = hdev->hci_ver;
 663         rp.manufacturer = cpu_to_le16(hdev->manufacturer);
 664
 665         rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
 666         rp.current_settings = cpu_to_le32(get_current_settings(hdev));
 667
 668         memcpy(rp.dev_class, hdev->dev_class, 3);
 669
 670         memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
 671         memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
 672
 673         hci_dev_unlock(hdev);
 674
 675         return cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
 676                             sizeof(rp));
 677 }
 678
 679 static void mgmt_pending_free(struct pending_cmd *cmd)
 680 {
 681         sock_put(cmd->sk);
 682         kfree(cmd->param);
 683         kfree(cmd);
 684 }
 685
 686 static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
 687                                             struct hci_dev *hdev, void *data,
 688                                             u16 len)
 689 {
 690         struct pending_cmd *cmd;
 691
 692         cmd = kmalloc(sizeof(*cmd), GFP_ATOMIC);
 693         if (!cmd)
 694                 return NULL;
 695
 696         cmd->opcode = opcode;
 697         cmd->index = hdev->id;
 698
 699         cmd->param = kmalloc(len, GFP_ATOMIC);
 700         if (!cmd->param) {
 701                 kfree(cmd);
 702                 return NULL;
 703         }
 704
 705         if (data)
 706                 memcpy(cmd->param, data, len);
 707
 708         cmd->sk = sk;
 709         sock_hold(sk);
 710
 711         list_add(&cmd->list, &hdev->mgmt_pending);
 712
 713         return cmd;
 714 }
 715
 716 static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
 717                                  void (*cb)(struct pending_cmd *cmd, void *data),
 718                                  void *data)
 719 {
 720         struct list_head *p, *n;
 721
 722         list_for_each_safe(p, n, &hdev->mgmt_pending) {
 723                 struct pending_cmd *cmd;
 724
 725                 cmd = list_entry(p, struct pending_cmd, list);
 726
 727                 if (opcode > 0 && cmd->opcode != opcode)
 728                         continue;
 729
 730                 cb(cmd, data);
 731         }
 732 }
 733
 734 static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev)
 735 {
 736         struct pending_cmd *cmd;
 737
 738         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
 739                 if (cmd->opcode == opcode)
 740                         return cmd;
 741         }
 742
 743         return NULL;
 744 }
 745
 746 static void mgmt_pending_remove(struct pending_cmd *cmd)
 747 {
 748         list_del(&cmd->list);
 749         mgmt_pending_free(cmd);
 750 }
 751
 752 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
 753 {
 754         __le32 settings = cpu_to_le32(get_current_settings(hdev));
 755
 756         return cmd_complete(sk, hdev->id, opcode, 0, &settings,
 757                             sizeof(settings));
 758 }
 759
 760 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 761                        u16 len)
 762 {
 763         struct mgmt_mode *cp = data;
 764         struct pending_cmd *cmd;
 765         int err;
 766
 767         BT_DBG("request for %s", hdev->name);
 768
 769         hci_dev_lock(hdev);
 770
 771         if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
 772                 cancel_delayed_work(&hdev->power_off);
 773
 774                 if (cp->val) {
 775                         err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
 776                         mgmt_powered(hdev, 1);
 777                         goto failed;
 778                 }
 779         }
 780
 781         if (!!cp->val == hdev_is_powered(hdev)) {
 782                 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
 783                 goto failed;
 784         }
 785
 786         if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) {
 787                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
 788                                  MGMT_STATUS_BUSY);
 789                 goto failed;
 790         }
 791
 792         cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
 793         if (!cmd) {
 794                 err = -ENOMEM;
 795                 goto failed;
 796         }
 797
 798         if (cp->val)
 799                 schedule_work(&hdev->power_on);
 800         else
 801                 schedule_work(&hdev->power_off.work);
 802
 803         err = 0;
 804
 805 failed:
 806         hci_dev_unlock(hdev);
 807         return err;
 808 }
 809
 810 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len,
 811                       struct sock *skip_sk)
 812 {
 813         struct sk_buff *skb;
 814         struct mgmt_hdr *hdr;
 815
 816         skb = alloc_skb(sizeof(*hdr) + data_len, GFP_ATOMIC);
 817         if (!skb)
 818                 return -ENOMEM;
 819
 820         hdr = (void *) skb_put(skb, sizeof(*hdr));
 821         hdr->opcode = cpu_to_le16(event);
 822         if (hdev)
 823                 hdr->index = cpu_to_le16(hdev->id);
 824         else
 825                 hdr->index = cpu_to_le16(MGMT_INDEX_NONE);
 826         hdr->len = cpu_to_le16(data_len);
 827
 828         if (data)
 829                 memcpy(skb_put(skb, data_len), data, data_len);
 830
 831         /* Time stamp */
 832         __net_timestamp(skb);
 833
 834         hci_send_to_control(skb, skip_sk);
 835         kfree_skb(skb);
 836
 837         return 0;
 838 }
 839
 840 static int new_settings(struct hci_dev *hdev, struct sock *skip)
 841 {
 842         __le32 ev;
 843
 844         ev = cpu_to_le32(get_current_settings(hdev));
 845
 846         return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
 847 }
 848
 849 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 850                             u16 len)
 851 {
 852         struct mgmt_cp_set_discoverable *cp = data;
 853         struct pending_cmd *cmd;
 854         u16 timeout;
 855         u8 scan;
 856         int err;
 857
 858         BT_DBG("request for %s", hdev->name);
 859
 860         timeout = __le16_to_cpu(cp->timeout);
 861         if (!cp->val && timeout > 0)
 862                 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 863                                   MGMT_STATUS_INVALID_PARAMS);
 864
 865         hci_dev_lock(hdev);
 866
 867         if (!hdev_is_powered(hdev) && timeout > 0) {
 868                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 869                                  MGMT_STATUS_NOT_POWERED);
 870                 goto failed;
 871         }
 872
 873         if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
 874                         mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
 875                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 876                                  MGMT_STATUS_BUSY);
 877                 goto failed;
 878         }
 879
 880         if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) {
 881                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 882                                  MGMT_STATUS_REJECTED);
 883                 goto failed;
 884         }
 885
 886         if (!hdev_is_powered(hdev)) {
 887                 bool changed = false;
 888
 889                 if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
 890                         change_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 891                         changed = true;
 892                 }
 893
 894                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
 895                 if (err < 0)
 896                         goto failed;
 897
 898                 if (changed)
 899                         err = new_settings(hdev, sk);
 900
 901                 goto failed;
 902         }
 903
 904         if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
 905                 if (hdev->discov_timeout > 0) {
 906                         cancel_delayed_work(&hdev->discov_off);
 907                         hdev->discov_timeout = 0;
 908                 }
 909
 910                 if (cp->val && timeout > 0) {
 911                         hdev->discov_timeout = timeout;
 912                         queue_delayed_work(hdev->workqueue, &hdev->discov_off,
 913                                 msecs_to_jiffies(hdev->discov_timeout * 1000));
 914                 }
 915
 916                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
 917                 goto failed;
 918         }
 919
 920         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
 921         if (!cmd) {
 922                 err = -ENOMEM;
 923                 goto failed;
 924         }
 925
 926         scan = SCAN_PAGE;
 927
 928         if (cp->val)
 929                 scan |= SCAN_INQUIRY;
 930         else
 931                 cancel_delayed_work(&hdev->discov_off);
 932
 933         err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
 934         if (err < 0)
 935                 mgmt_pending_remove(cmd);
 936
 937         if (cp->val)
 938                 hdev->discov_timeout = timeout;
 939
 940 failed:
 941         hci_dev_unlock(hdev);
 942         return err;
 943 }
 944
 945 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 946                            u16 len)
 947 {
 948         struct mgmt_mode *cp = data;
 949         struct pending_cmd *cmd;
 950         u8 scan;
 951         int err;
 952
 953         BT_DBG("request for %s", hdev->name);
 954
 955         hci_dev_lock(hdev);
 956
 957         if (!hdev_is_powered(hdev)) {
 958                 bool changed = false;
 959
 960                 if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 961                         changed = true;
 962
 963                 if (cp->val) {
 964                         set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
 965                 } else {
 966                         clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
 967                         clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 968                 }
 969
 970                 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
 971                 if (err < 0)
 972                         goto failed;
 973
 974                 if (changed)
 975                         err = new_settings(hdev, sk);
 976
 977                 goto failed;
 978         }
 979
 980         if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
 981                         mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
 982                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
 983                                  MGMT_STATUS_BUSY);
 984                 goto failed;
 985         }
 986
 987         if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
 988                 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
 989                 goto failed;
 990         }
 991
 992         cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
 993         if (!cmd) {
 994                 err = -ENOMEM;
 995                 goto failed;
 996         }
 997
 998         if (cp->val) {
 999                 scan = SCAN_PAGE;
1000         } else {
1001                 scan = 0;
1002
1003                 if (test_bit(HCI_ISCAN, &hdev->flags) &&
1004                                                 hdev->discov_timeout > 0)
1005                         cancel_delayed_work(&hdev->discov_off);
1006         }
1007
1008         err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
1009         if (err < 0)
1010                 mgmt_pending_remove(cmd);
1011
1012 failed:
1013         hci_dev_unlock(hdev);
1014         return err;
1015 }
1016
1017 static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
1018                         u16 len)
1019 {
1020         struct mgmt_mode *cp = data;
1021         int err;
1022
1023         BT_DBG("request for %s", hdev->name);
1024
1025         hci_dev_lock(hdev);
1026
1027         if (cp->val)
1028                 set_bit(HCI_PAIRABLE, &hdev->dev_flags);
1029         else
1030                 clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
1031
1032         err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
1033         if (err < 0)
1034                 goto failed;
1035
1036         err = new_settings(hdev, sk);
1037
1038 failed:
1039         hci_dev_unlock(hdev);
1040         return err;
1041 }
1042
1043 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
1044                              u16 len)
1045 {
1046         struct mgmt_mode *cp = data;
1047         struct pending_cmd *cmd;
1048         u8 val;
1049         int err;
1050
1051         BT_DBG("request for %s", hdev->name);
1052
1053         hci_dev_lock(hdev);
1054
1055         if (!hdev_is_powered(hdev)) {
1056                 bool changed = false;
1057
1058                 if (!!cp->val != test_bit(HCI_LINK_SECURITY,
1059                                                         &hdev->dev_flags)) {
1060                         change_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
1061                         changed = true;
1062                 }
1063
1064                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1065                 if (err < 0)
1066                         goto failed;
1067
1068                 if (changed)
1069                         err = new_settings(hdev, sk);
1070
1071                 goto failed;
1072         }
1073
1074         if (mgmt_pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
1075                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1076                                  MGMT_STATUS_BUSY);
1077                 goto failed;
1078         }
1079
1080         val = !!cp->val;
1081
1082         if (test_bit(HCI_AUTH, &hdev->flags) == val) {
1083                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1084                 goto failed;
1085         }
1086
1087         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
1088         if (!cmd) {
1089                 err = -ENOMEM;
1090                 goto failed;
1091         }
1092
1093         err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
1094         if (err < 0) {
1095                 mgmt_pending_remove(cmd);
1096                 goto failed;
1097         }
1098
1099 failed:
1100         hci_dev_unlock(hdev);
1101         return err;
1102 }
1103
1104 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1105 {
1106         struct mgmt_mode *cp = data;
1107         struct pending_cmd *cmd;
1108         u8 val;
1109         int err;
1110
1111         BT_DBG("request for %s", hdev->name);
1112
1113         hci_dev_lock(hdev);
1114
1115         if (!(hdev->features[6] & LMP_SIMPLE_PAIR)) {
1116                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1117                                  MGMT_STATUS_NOT_SUPPORTED);
1118                 goto failed;
1119         }
1120
1121         val = !!cp->val;
1122
1123         if (!hdev_is_powered(hdev)) {
1124                 bool changed = false;
1125
1126                 if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
1127                         change_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
1128                         changed = true;
1129                 }
1130
1131                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
1132                 if (err < 0)
1133                         goto failed;
1134
1135                 if (changed)
1136                         err = new_settings(hdev, sk);
1137
1138                 goto failed;
1139         }
1140
1141         if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
1142                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1143                                  MGMT_STATUS_BUSY);
1144                 goto failed;
1145         }
1146
1147         if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
1148                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
1149                 goto failed;
1150         }
1151
1152         cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
1153         if (!cmd) {
1154                 err = -ENOMEM;
1155                 goto failed;
1156         }
1157
1158         err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
1159         if (err < 0) {
1160                 mgmt_pending_remove(cmd);
1161                 goto failed;
1162         }
1163
1164 failed:
1165         hci_dev_unlock(hdev);
1166         return err;
1167 }
1168
1169 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1170 {
1171         struct mgmt_mode *cp = data;
1172
1173         BT_DBG("request for %s", hdev->name);
1174
1175         if (!enable_hs)
1176                 return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
1177                                   MGMT_STATUS_NOT_SUPPORTED);
1178
1179         if (cp->val)
1180                 set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
1181         else
1182                 clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
1183
1184         return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
1185 }
1186
1187 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1188 {
1189         struct mgmt_mode *cp = data;
1190         struct hci_cp_write_le_host_supported hci_cp;
1191         struct pending_cmd *cmd;
1192         int err;
1193         u8 val, enabled;
1194
1195         BT_DBG("request for %s", hdev->name);
1196
1197         hci_dev_lock(hdev);
1198
1199         if (!(hdev->features[4] & LMP_LE)) {
1200                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1201                                  MGMT_STATUS_NOT_SUPPORTED);
1202                 goto unlock;
1203         }
1204
1205         val = !!cp->val;
1206         enabled = !!(hdev->host_features[0] & LMP_HOST_LE);
1207
1208         if (!hdev_is_powered(hdev) || val == enabled) {
1209                 bool changed = false;
1210
1211                 if (val != test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
1212                         change_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1213                         changed = true;
1214                 }
1215
1216                 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
1217                 if (err < 0)
1218                         goto unlock;
1219
1220                 if (changed)
1221                         err = new_settings(hdev, sk);
1222
1223                 goto unlock;
1224         }
1225
1226         if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) {
1227                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1228                                  MGMT_STATUS_BUSY);
1229                 goto unlock;
1230         }
1231
1232         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
1233         if (!cmd) {
1234                 err = -ENOMEM;
1235                 goto unlock;
1236         }
1237
1238         memset(&hci_cp, 0, sizeof(hci_cp));
1239
1240         if (val) {
1241                 hci_cp.le = val;
1242                 hci_cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
1243         }
1244
1245         err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
1246                            &hci_cp);
1247         if (err < 0)
1248                 mgmt_pending_remove(cmd);
1249
1250 unlock:
1251         hci_dev_unlock(hdev);
1252         return err;
1253 }
1254
1255 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1256 {
1257         struct mgmt_cp_add_uuid *cp = data;
1258         struct pending_cmd *cmd;
1259         struct bt_uuid *uuid;
1260         int err;
1261
1262         BT_DBG("request for %s", hdev->name);
1263
1264         hci_dev_lock(hdev);
1265
1266         if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1267                 err = cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
1268                                  MGMT_STATUS_BUSY);
1269                 goto failed;
1270         }
1271
1272         uuid = kmalloc(sizeof(*uuid), GFP_ATOMIC);
1273         if (!uuid) {
1274                 err = -ENOMEM;
1275                 goto failed;
1276         }
1277
1278         memcpy(uuid->uuid, cp->uuid, 16);
1279         uuid->svc_hint = cp->svc_hint;
1280
1281         list_add(&uuid->list, &hdev->uuids);
1282
1283         err = update_class(hdev);
1284         if (err < 0)
1285                 goto failed;
1286
1287         err = update_eir(hdev);
1288         if (err < 0)
1289                 goto failed;
1290
1291         if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1292                 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
1293                                    hdev->dev_class, 3);
1294                 goto failed;
1295         }
1296
1297         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
1298         if (!cmd)
1299                 err = -ENOMEM;
1300
1301 failed:
1302         hci_dev_unlock(hdev);
1303         return err;
1304 }
1305
1306 static bool enable_service_cache(struct hci_dev *hdev)
1307 {
1308         if (!hdev_is_powered(hdev))
1309                 return false;
1310
1311         if (!test_and_set_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
1312                 schedule_delayed_work(&hdev->service_cache, CACHE_TIMEOUT);
1313                 return true;
1314         }
1315
1316         return false;
1317 }
1318
1319 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
1320                                                                 u16 len)
1321 {
1322         struct mgmt_cp_remove_uuid *cp = data;
1323         struct pending_cmd *cmd;
1324         struct list_head *p, *n;
1325         u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
1326         int err, found;
1327
1328         BT_DBG("request for %s", hdev->name);
1329
1330         hci_dev_lock(hdev);
1331
1332         if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1333                 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1334                                  MGMT_STATUS_BUSY);
1335                 goto unlock;
1336         }
1337
1338         if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
1339                 err = hci_uuids_clear(hdev);
1340
1341                 if (enable_service_cache(hdev)) {
1342                         err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1343                                            0, hdev->dev_class, 3);
1344                         goto unlock;
1345                 }
1346
1347                 goto update_class;
1348         }
1349
1350         found = 0;
1351
1352         list_for_each_safe(p, n, &hdev->uuids) {
1353                 struct bt_uuid *match = list_entry(p, struct bt_uuid, list);
1354
1355                 if (memcmp(match->uuid, cp->uuid, 16) != 0)
1356                         continue;
1357
1358                 list_del(&match->list);
1359                 found++;
1360         }
1361
1362         if (found == 0) {
1363                 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1364                                  MGMT_STATUS_INVALID_PARAMS);
1365                 goto unlock;
1366         }
1367
1368 update_class:
1369         err = update_class(hdev);
1370         if (err < 0)
1371                 goto unlock;
1372
1373         err = update_eir(hdev);
1374         if (err < 0)
1375                 goto unlock;
1376
1377         if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1378                 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
1379                                    hdev->dev_class, 3);
1380                 goto unlock;
1381         }
1382
1383         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
1384         if (!cmd)
1385                 err = -ENOMEM;
1386
1387 unlock:
1388         hci_dev_unlock(hdev);
1389         return err;
1390 }
1391
1392 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
1393                          u16 len)
1394 {
1395         struct mgmt_cp_set_dev_class *cp = data;
1396         struct pending_cmd *cmd;
1397         int err;
1398
1399         BT_DBG("request for %s", hdev->name);
1400
1401         hci_dev_lock(hdev);
1402
1403         if (test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1404                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
1405                                  MGMT_STATUS_BUSY);
1406                 goto unlock;
1407         }
1408
1409         hdev->major_class = cp->major;
1410         hdev->minor_class = cp->minor;
1411
1412         if (!hdev_is_powered(hdev)) {
1413                 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
1414                                    hdev->dev_class, 3);
1415                 goto unlock;
1416         }
1417
1418         if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
1419                 hci_dev_unlock(hdev);
1420                 cancel_delayed_work_sync(&hdev->service_cache);
1421                 hci_dev_lock(hdev);
1422                 update_eir(hdev);
1423         }
1424
1425         err = update_class(hdev);
1426         if (err < 0)
1427                 goto unlock;
1428
1429         if (!test_bit(HCI_PENDING_CLASS, &hdev->dev_flags)) {
1430                 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
1431                                    hdev->dev_class, 3);
1432                 goto unlock;
1433         }
1434
1435         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
1436         if (!cmd)
1437                 err = -ENOMEM;
1438
1439 unlock:
1440         hci_dev_unlock(hdev);
1441         return err;
1442 }
1443
1444 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
1445                                                                 u16 len)
1446 {
1447         struct mgmt_cp_load_link_keys *cp = data;
1448         u16 key_count, expected_len;
1449         int i;
1450
1451         key_count = __le16_to_cpu(cp->key_count);
1452
1453         expected_len = sizeof(*cp) + key_count *
1454                                         sizeof(struct mgmt_link_key_info);
1455         if (expected_len != len) {
1456                 BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
1457                                                         len, expected_len);
1458                 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
1459                                   MGMT_STATUS_INVALID_PARAMS);
1460         }
1461
1462         BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
1463                                                                 key_count);
1464
1465         hci_dev_lock(hdev);
1466
1467         hci_link_keys_clear(hdev);
1468
1469         set_bit(HCI_LINK_KEYS, &hdev->dev_flags);
1470
1471         if (cp->debug_keys)
1472                 set_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
1473         else
1474                 clear_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
1475
1476         for (i = 0; i < key_count; i++) {
1477                 struct mgmt_link_key_info *key = &cp->keys[i];
1478
1479                 hci_add_link_key(hdev, NULL, 0, &key->addr.bdaddr, key->val,
1480                                  key->type, key->pin_len);
1481         }
1482
1483         cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
1484
1485         hci_dev_unlock(hdev);
1486
1487         return 0;
1488 }
1489
1490 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
1491                            u8 addr_type, struct sock *skip_sk)
1492 {
1493         struct mgmt_ev_device_unpaired ev;
1494
1495         bacpy(&ev.addr.bdaddr, bdaddr);
1496         ev.addr.type = addr_type;
1497
1498         return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
1499                           skip_sk);
1500 }
1501
1502 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
1503                          u16 len)
1504 {
1505         struct mgmt_cp_unpair_device *cp = data;
1506         struct mgmt_rp_unpair_device rp;
1507         struct hci_cp_disconnect dc;
1508         struct pending_cmd *cmd;
1509         struct hci_conn *conn;
1510         int err;
1511
1512         hci_dev_lock(hdev);
1513
1514         memset(&rp, 0, sizeof(rp));
1515         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
1516         rp.addr.type = cp->addr.type;
1517
1518         if (!hdev_is_powered(hdev)) {
1519                 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1520                                    MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
1521                 goto unlock;
1522         }
1523
1524         if (cp->addr.type == BDADDR_BREDR)
1525                 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
1526         else
1527                 err = hci_remove_ltk(hdev, &cp->addr.bdaddr);
1528
1529         if (err < 0) {
1530                 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1531                                    MGMT_STATUS_NOT_PAIRED, &rp, sizeof(rp));
1532                 goto unlock;
1533         }
1534
1535         if (cp->disconnect) {
1536                 if (cp->addr.type == BDADDR_BREDR)
1537                         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
1538                                                         &cp->addr.bdaddr);
1539                 else
1540                         conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
1541                                                         &cp->addr.bdaddr);
1542         } else {
1543                 conn = NULL;
1544         }
1545
1546         if (!conn) {
1547                 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
1548                                    &rp, sizeof(rp));
1549                 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
1550                 goto unlock;
1551         }
1552
1553         cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
1554                                sizeof(*cp));
1555         if (!cmd) {
1556                 err = -ENOMEM;
1557                 goto unlock;
1558         }
1559
1560         dc.handle = cpu_to_le16(conn->handle);
1561         dc.reason = 0x13; /* Remote User Terminated Connection */
1562         err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1563         if (err < 0)
1564                 mgmt_pending_remove(cmd);
1565
1566 unlock:
1567         hci_dev_unlock(hdev);
1568         return err;
1569 }
1570
1571 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
1572                       u16 len)
1573 {
1574         struct mgmt_cp_disconnect *cp = data;
1575         struct hci_cp_disconnect dc;
1576         struct pending_cmd *cmd;
1577         struct hci_conn *conn;
1578         int err;
1579
1580         BT_DBG("");
1581
1582         hci_dev_lock(hdev);
1583
1584         if (!test_bit(HCI_UP, &hdev->flags)) {
1585                 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
1586                                  MGMT_STATUS_NOT_POWERED);
1587                 goto failed;
1588         }
1589
1590         if (mgmt_pending_find(MGMT_OP_DISCONNECT, hdev)) {
1591                 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
1592                                  MGMT_STATUS_BUSY);
1593                 goto failed;
1594         }
1595
1596         if (cp->addr.type == BDADDR_BREDR)
1597                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
1598         else
1599                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
1600
1601         if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) {
1602                 err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT,
1603                                  MGMT_STATUS_NOT_CONNECTED);
1604                 goto failed;
1605         }
1606
1607         cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
1608         if (!cmd) {
1609                 err = -ENOMEM;
1610                 goto failed;
1611         }
1612
1613         dc.handle = cpu_to_le16(conn->handle);
1614         dc.reason = 0x13; /* Remote User Terminated Connection */
1615
1616         err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1617         if (err < 0)
1618                 mgmt_pending_remove(cmd);
1619
1620 failed:
1621         hci_dev_unlock(hdev);
1622         return err;
1623 }
1624
1625 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
1626 {
1627         switch (link_type) {
1628         case LE_LINK:
1629                 switch (addr_type) {
1630                 case ADDR_LE_DEV_PUBLIC:
1631                         return BDADDR_LE_PUBLIC;
1632
1633                 default:
1634                         /* Fallback to LE Random address type */
1635                         return BDADDR_LE_RANDOM;
1636                 }
1637
1638         default:
1639                 /* Fallback to BR/EDR type */
1640                 return BDADDR_BREDR;
1641         }
1642 }
1643
1644 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
1645                            u16 data_len)
1646 {
1647         struct mgmt_rp_get_connections *rp;
1648         struct hci_conn *c;
1649         size_t rp_len;
1650         int err;
1651         u16 i;
1652
1653         BT_DBG("");
1654
1655         hci_dev_lock(hdev);
1656
1657         if (!hdev_is_powered(hdev)) {
1658                 err = cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
1659                                  MGMT_STATUS_NOT_POWERED);
1660                 goto unlock;
1661         }
1662
1663         i = 0;
1664         list_for_each_entry(c, &hdev->conn_hash.list, list) {
1665                 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
1666                         i++;
1667         }
1668
1669         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
1670         rp = kmalloc(rp_len, GFP_ATOMIC);
1671         if (!rp) {
1672                 err = -ENOMEM;
1673                 goto unlock;
1674         }
1675
1676         i = 0;
1677         list_for_each_entry(c, &hdev->conn_hash.list, list) {
1678                 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
1679                         continue;
1680                 bacpy(&rp->addr[i].bdaddr, &c->dst);
1681                 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
1682                 if (c->type == SCO_LINK || c->type == ESCO_LINK)
1683                         continue;
1684                 i++;
1685         }
1686
1687         rp->conn_count = cpu_to_le16(i);
1688
1689         /* Recalculate length in case of filtered SCO connections, etc */
1690         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
1691
1692         err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
1693                            rp_len);
1694
1695         kfree(rp);
1696
1697 unlock:
1698         hci_dev_unlock(hdev);
1699         return err;
1700 }
1701
1702 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
1703                                    struct mgmt_cp_pin_code_neg_reply *cp)
1704 {
1705         struct pending_cmd *cmd;
1706         int err;
1707
1708         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
1709                                sizeof(*cp));
1710         if (!cmd)
1711                 return -ENOMEM;
1712
1713         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
1714                            sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
1715         if (err < 0)
1716                 mgmt_pending_remove(cmd);
1717
1718         return err;
1719 }
1720
1721 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
1722                           u16 len)
1723 {
1724         struct hci_conn *conn;
1725         struct mgmt_cp_pin_code_reply *cp = data;
1726         struct hci_cp_pin_code_reply reply;
1727         struct pending_cmd *cmd;
1728         int err;
1729
1730         BT_DBG("");
1731
1732         hci_dev_lock(hdev);
1733
1734         if (!hdev_is_powered(hdev)) {
1735                 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
1736                                  MGMT_STATUS_NOT_POWERED);
1737                 goto failed;
1738         }
1739
1740         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
1741         if (!conn) {
1742                 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
1743                                  MGMT_STATUS_NOT_CONNECTED);
1744                 goto failed;
1745         }
1746
1747         if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
1748                 struct mgmt_cp_pin_code_neg_reply ncp;
1749
1750                 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
1751
1752                 BT_ERR("PIN code is not 16 bytes long");
1753
1754                 err = send_pin_code_neg_reply(sk, hdev, &ncp);
1755                 if (err >= 0)
1756                         err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
1757                                          MGMT_STATUS_INVALID_PARAMS);
1758
1759                 goto failed;
1760         }
1761
1762         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
1763         if (!cmd) {
1764                 err = -ENOMEM;
1765                 goto failed;
1766         }
1767
1768         bacpy(&reply.bdaddr, &cp->addr.bdaddr);
1769         reply.pin_len = cp->pin_len;
1770         memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
1771
1772         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
1773         if (err < 0)
1774                 mgmt_pending_remove(cmd);
1775
1776 failed:
1777         hci_dev_unlock(hdev);
1778         return err;
1779 }
1780
1781 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
1782                               void *data, u16 len)
1783 {
1784         struct mgmt_cp_pin_code_neg_reply *cp = data;
1785         int err;
1786
1787         BT_DBG("");
1788
1789         hci_dev_lock(hdev);
1790
1791         if (!hdev_is_powered(hdev)) {
1792                 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
1793                                  MGMT_STATUS_NOT_POWERED);
1794                 goto failed;
1795         }
1796
1797         err = send_pin_code_neg_reply(sk, hdev, cp);
1798
1799 failed:
1800         hci_dev_unlock(hdev);
1801         return err;
1802 }
1803
1804 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
1805                              u16 len)
1806 {
1807         struct mgmt_cp_set_io_capability *cp = data;
1808
1809         BT_DBG("");
1810
1811         hci_dev_lock(hdev);
1812
1813         hdev->io_capability = cp->io_capability;
1814
1815         BT_DBG("%s IO capability set to 0x%02x", hdev->name,
1816                                                         hdev->io_capability);
1817
1818         hci_dev_unlock(hdev);
1819
1820         return cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0, NULL,
1821                             0);
1822 }
1823
1824 static inline struct pending_cmd *find_pairing(struct hci_conn *conn)
1825 {
1826         struct hci_dev *hdev = conn->hdev;
1827         struct pending_cmd *cmd;
1828
1829         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
1830                 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
1831                         continue;
1832
1833                 if (cmd->user_data != conn)
1834                         continue;
1835
1836                 return cmd;
1837         }
1838
1839         return NULL;
1840 }
1841
1842 static void pairing_complete(struct pending_cmd *cmd, u8 status)
1843 {
1844         struct mgmt_rp_pair_device rp;
1845         struct hci_conn *conn = cmd->user_data;
1846
1847         bacpy(&rp.addr.bdaddr, &conn->dst);
1848         rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
1849
1850         cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE, status,
1851                      &rp, sizeof(rp));
1852
1853         /* So we don't get further callbacks for this connection */
1854         conn->connect_cfm_cb = NULL;
1855         conn->security_cfm_cb = NULL;
1856         conn->disconn_cfm_cb = NULL;
1857
1858         hci_conn_put(conn);
1859
1860         mgmt_pending_remove(cmd);
1861 }
1862
1863 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
1864 {
1865         struct pending_cmd *cmd;
1866
1867         BT_DBG("status %u", status);
1868
1869         cmd = find_pairing(conn);
1870         if (!cmd)
1871                 BT_DBG("Unable to find a pending command");
1872         else
1873                 pairing_complete(cmd, mgmt_status(status));
1874 }
1875
1876 static void le_connect_complete_cb(struct hci_conn *conn, u8 status)
1877 {
1878         struct pending_cmd *cmd;
1879
1880         BT_DBG("status %u", status);
1881
1882         if (!status)
1883                 return;
1884
1885         cmd = find_pairing(conn);
1886         if (!cmd)
1887                 BT_DBG("Unable to find a pending command");
1888         else
1889                 pairing_complete(cmd, mgmt_status(status));
1890 }
1891
1892 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
1893                        u16 len)
1894 {
1895         struct mgmt_cp_pair_device *cp = data;
1896         struct mgmt_rp_pair_device rp;
1897         struct pending_cmd *cmd;
1898         u8 sec_level, auth_type;
1899         struct hci_conn *conn;
1900         int err;
1901
1902         BT_DBG("");
1903
1904         hci_dev_lock(hdev);
1905
1906         if (!hdev_is_powered(hdev)) {
1907                 err = cmd_status(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
1908                                  MGMT_STATUS_NOT_POWERED);
1909                 goto unlock;
1910         }
1911
1912         sec_level = BT_SECURITY_MEDIUM;
1913         if (cp->io_cap == 0x03)
1914                 auth_type = HCI_AT_DEDICATED_BONDING;
1915         else
1916                 auth_type = HCI_AT_DEDICATED_BONDING_MITM;
1917
1918         if (cp->addr.type == BDADDR_BREDR)
1919                 conn = hci_connect(hdev, ACL_LINK, &cp->addr.bdaddr,
1920                                    cp->addr.type, sec_level, auth_type);
1921         else
1922                 conn = hci_connect(hdev, LE_LINK, &cp->addr.bdaddr,
1923                                    cp->addr.type, sec_level, auth_type);
1924
1925         memset(&rp, 0, sizeof(rp));
1926         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
1927         rp.addr.type = cp->addr.type;
1928
1929         if (IS_ERR(conn)) {
1930                 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
1931                                    MGMT_STATUS_CONNECT_FAILED, &rp,
1932                                    sizeof(rp));
1933                 goto unlock;
1934         }
1935
1936         if (conn->connect_cfm_cb) {
1937                 hci_conn_put(conn);
1938                 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
1939                                    MGMT_STATUS_BUSY, &rp, sizeof(rp));
1940                 goto unlock;
1941         }
1942
1943         cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
1944         if (!cmd) {
1945                 err = -ENOMEM;
1946                 hci_conn_put(conn);
1947                 goto unlock;
1948         }
1949
1950         /* For LE, just connecting isn't a proof that the pairing finished */
1951         if (cp->addr.type == BDADDR_BREDR)
1952                 conn->connect_cfm_cb = pairing_complete_cb;
1953         else
1954                 conn->connect_cfm_cb = le_connect_complete_cb;
1955
1956         conn->security_cfm_cb = pairing_complete_cb;
1957         conn->disconn_cfm_cb = pairing_complete_cb;
1958         conn->io_capability = cp->io_cap;
1959         cmd->user_data = conn;
1960
1961         if (conn->state == BT_CONNECTED &&
1962                                 hci_conn_security(conn, sec_level, auth_type))
1963                 pairing_complete(cmd, 0);
1964
1965         err = 0;
1966
1967 unlock:
1968         hci_dev_unlock(hdev);
1969         return err;
1970 }
1971
1972 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
1973                               u16 len)
1974 {
1975         struct mgmt_addr_info *addr = data;
1976         struct pending_cmd *cmd;
1977         struct hci_conn *conn;
1978         int err;
1979
1980         BT_DBG("");
1981
1982         hci_dev_lock(hdev);
1983
1984         if (!hdev_is_powered(hdev)) {
1985                 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
1986                                  MGMT_STATUS_NOT_POWERED);
1987                 goto unlock;
1988         }
1989
1990         cmd = mgmt_pending_find(MGMT_OP_PAIR_DEVICE, hdev);
1991         if (!cmd) {
1992                 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
1993                                  MGMT_STATUS_INVALID_PARAMS);
1994                 goto unlock;
1995         }
1996
1997         conn = cmd->user_data;
1998
1999         if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
2000                 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
2001                                  MGMT_STATUS_INVALID_PARAMS);
2002                 goto unlock;
2003         }
2004
2005         pairing_complete(cmd, MGMT_STATUS_CANCELLED);
2006
2007         err = cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
2008                            addr, sizeof(*addr));
2009 unlock:
2010         hci_dev_unlock(hdev);
2011         return err;
2012 }
2013
2014 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
2015                              bdaddr_t *bdaddr, u8 type, u16 mgmt_op,
2016                              u16 hci_op, __le32 passkey)
2017 {
2018         struct pending_cmd *cmd;
2019         struct hci_conn *conn;
2020         int err;
2021
2022         hci_dev_lock(hdev);
2023
2024         if (!hdev_is_powered(hdev)) {
2025                 err = cmd_status(sk, hdev->id, mgmt_op,
2026                                  MGMT_STATUS_NOT_POWERED);
2027                 goto done;
2028         }
2029
2030         if (type == BDADDR_BREDR)
2031                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, bdaddr);
2032         else
2033                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, bdaddr);
2034
2035         if (!conn) {
2036                 err = cmd_status(sk, hdev->id, mgmt_op,
2037                                  MGMT_STATUS_NOT_CONNECTED);
2038                 goto done;
2039         }
2040
2041         if (type == BDADDR_LE_PUBLIC || type == BDADDR_LE_RANDOM) {
2042                 /* Continue with pairing via SMP */
2043                 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
2044
2045                 if (!err)
2046                         err = cmd_status(sk, hdev->id, mgmt_op,
2047                                          MGMT_STATUS_SUCCESS);
2048                 else
2049                         err = cmd_status(sk, hdev->id, mgmt_op,
2050                                          MGMT_STATUS_FAILED);
2051
2052                 goto done;
2053         }
2054
2055         cmd = mgmt_pending_add(sk, mgmt_op, hdev, bdaddr, sizeof(*bdaddr));
2056         if (!cmd) {
2057                 err = -ENOMEM;
2058                 goto done;
2059         }
2060
2061         /* Continue with pairing via HCI */
2062         if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
2063                 struct hci_cp_user_passkey_reply cp;
2064
2065                 bacpy(&cp.bdaddr, bdaddr);
2066                 cp.passkey = passkey;
2067                 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
2068         } else
2069                 err = hci_send_cmd(hdev, hci_op, sizeof(*bdaddr), bdaddr);
2070
2071         if (err < 0)
2072                 mgmt_pending_remove(cmd);
2073
2074 done:
2075         hci_dev_unlock(hdev);
2076         return err;
2077 }
2078
2079 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
2080                               u16 len)
2081 {
2082         struct mgmt_cp_user_confirm_reply *cp = data;
2083
2084         BT_DBG("");
2085
2086         if (len != sizeof(*cp))
2087                 return cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
2088                                   MGMT_STATUS_INVALID_PARAMS);
2089
2090         return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
2091                                  MGMT_OP_USER_CONFIRM_REPLY,
2092                                  HCI_OP_USER_CONFIRM_REPLY, 0);
2093 }
2094
2095 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
2096                                   void *data, u16 len)
2097 {
2098         struct mgmt_cp_user_confirm_neg_reply *cp = data;
2099
2100         BT_DBG("");
2101
2102         return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
2103                                  MGMT_OP_USER_CONFIRM_NEG_REPLY,
2104                                  HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
2105 }
2106
2107 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
2108                               u16 len)
2109 {
2110         struct mgmt_cp_user_passkey_reply *cp = data;
2111
2112         BT_DBG("");
2113
2114         return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
2115                                  MGMT_OP_USER_PASSKEY_REPLY,
2116                                  HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
2117 }
2118
2119 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
2120                                   void *data, u16 len)
2121 {
2122         struct mgmt_cp_user_passkey_neg_reply *cp = data;
2123
2124         BT_DBG("");
2125
2126         return user_pairing_resp(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
2127                                  MGMT_OP_USER_PASSKEY_NEG_REPLY,
2128                                  HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
2129 }
2130
2131 static int update_name(struct hci_dev *hdev, const char *name)
2132 {
2133         struct hci_cp_write_local_name cp;
2134
2135         memcpy(cp.name, name, sizeof(cp.name));
2136
2137         return hci_send_cmd(hdev, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
2138 }
2139
2140 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
2141                           u16 len)
2142 {
2143         struct mgmt_cp_set_local_name *cp = data;
2144         struct pending_cmd *cmd;
2145         int err;
2146
2147         BT_DBG("");
2148
2149         hci_dev_lock(hdev);
2150
2151         memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
2152
2153         if (!hdev_is_powered(hdev)) {
2154                 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
2155
2156                 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
2157                                    data, len);
2158                 if (err < 0)
2159                         goto failed;
2160
2161                 err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data, len,
2162                                  sk);
2163
2164                 goto failed;
2165         }
2166
2167         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
2168         if (!cmd) {
2169                 err = -ENOMEM;
2170                 goto failed;
2171         }
2172
2173         err = update_name(hdev, cp->name);
2174         if (err < 0)
2175                 mgmt_pending_remove(cmd);
2176
2177 failed:
2178         hci_dev_unlock(hdev);
2179         return err;
2180 }
2181
2182 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
2183                                void *data, u16 data_len)
2184 {
2185         struct pending_cmd *cmd;
2186         int err;
2187
2188         BT_DBG("%s", hdev->name);
2189
2190         hci_dev_lock(hdev);
2191
2192         if (!hdev_is_powered(hdev)) {
2193                 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2194                                  MGMT_STATUS_NOT_POWERED);
2195                 goto unlock;
2196         }
2197
2198         if (!(hdev->features[6] & LMP_SIMPLE_PAIR)) {
2199                 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2200                                  MGMT_STATUS_NOT_SUPPORTED);
2201                 goto unlock;
2202         }
2203
2204         if (mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
2205                 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2206                                  MGMT_STATUS_BUSY);
2207                 goto unlock;
2208         }
2209
2210         cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
2211         if (!cmd) {
2212                 err = -ENOMEM;
2213                 goto unlock;
2214         }
2215
2216         err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
2217         if (err < 0)
2218                 mgmt_pending_remove(cmd);
2219
2220 unlock:
2221         hci_dev_unlock(hdev);
2222         return err;
2223 }
2224
2225 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
2226                                void *data, u16 len)
2227 {
2228         struct mgmt_cp_add_remote_oob_data *cp = data;
2229         u8 status;
2230         int err;
2231
2232         BT_DBG("%s ", hdev->name);
2233
2234         hci_dev_lock(hdev);
2235
2236         if (!hdev_is_powered(hdev)) {
2237                 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
2238                                    MGMT_STATUS_NOT_POWERED, &cp->addr,
2239                                    sizeof(cp->addr));
2240                 goto unlock;
2241         }
2242
2243         err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr, cp->hash,
2244                                       cp->randomizer);
2245         if (err < 0)
2246                 status = MGMT_STATUS_FAILED;
2247         else
2248                 status = 0;
2249
2250         err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA, status,
2251                            &cp->addr, sizeof(cp->addr));
2252
2253 unlock:
2254         hci_dev_unlock(hdev);
2255         return err;
2256 }
2257
2258 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
2259                                                 void *data, u16 len)
2260 {
2261         struct mgmt_cp_remove_remote_oob_data *cp = data;
2262         u8 status;
2263         int err;
2264
2265         BT_DBG("%s", hdev->name);
2266
2267         hci_dev_lock(hdev);
2268
2269         if (!hdev_is_powered(hdev)) {
2270                 err = cmd_complete(sk, hdev->id,
2271                                    MGMT_OP_REMOVE_REMOTE_OOB_DATA,
2272                                    MGMT_STATUS_NOT_POWERED, &cp->addr,
2273                                    sizeof(cp->addr));
2274                 goto unlock;
2275         }
2276
2277         err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr);
2278         if (err < 0)
2279                 status = MGMT_STATUS_INVALID_PARAMS;
2280         else
2281                 status = 0;
2282
2283         err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
2284                            status, &cp->addr, sizeof(cp->addr));
2285
2286 unlock:
2287         hci_dev_unlock(hdev);
2288         return err;
2289 }
2290
2291 int mgmt_interleaved_discovery(struct hci_dev *hdev)
2292 {
2293         int err;
2294
2295         BT_DBG("%s", hdev->name);
2296
2297         hci_dev_lock(hdev);
2298
2299         err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR_LE);
2300         if (err < 0)
2301                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2302
2303         hci_dev_unlock(hdev);
2304
2305         return err;
2306 }
2307
2308 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
2309                            void *data, u16 len)
2310 {
2311         struct mgmt_cp_start_discovery *cp = data;
2312         struct pending_cmd *cmd;
2313         int err;
2314
2315         BT_DBG("%s", hdev->name);
2316
2317         hci_dev_lock(hdev);
2318
2319         if (!hdev_is_powered(hdev)) {
2320                 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2321                                  MGMT_STATUS_NOT_POWERED);
2322                 goto failed;
2323         }
2324
2325         if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) {
2326                 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2327                                  MGMT_STATUS_BUSY);
2328                 goto failed;
2329         }
2330
2331         if (hdev->discovery.state != DISCOVERY_STOPPED) {
2332                 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2333                                  MGMT_STATUS_BUSY);
2334                 goto failed;
2335         }
2336
2337         cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, NULL, 0);
2338         if (!cmd) {
2339                 err = -ENOMEM;
2340                 goto failed;
2341         }
2342
2343         hdev->discovery.type = cp->type;
2344
2345         switch (hdev->discovery.type) {
2346         case DISCOV_TYPE_BREDR:
2347                 if (lmp_bredr_capable(hdev))
2348                         err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);
2349                 else
2350                         err = -ENOTSUPP;
2351                 break;
2352
2353         case DISCOV_TYPE_LE:
2354                 if (lmp_host_le_capable(hdev))
2355                         err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,
2356                                           LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY);
2357                 else
2358                         err = -ENOTSUPP;
2359                 break;
2360
2361         case DISCOV_TYPE_INTERLEAVED:
2362                 if (lmp_host_le_capable(hdev) && lmp_bredr_capable(hdev))
2363                         err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,
2364                                           LE_SCAN_WIN,
2365                                           LE_SCAN_TIMEOUT_BREDR_LE);
2366                 else
2367                         err = -ENOTSUPP;
2368                 break;
2369
2370         default:
2371                 err = -EINVAL;
2372         }
2373
2374         if (err < 0)
2375                 mgmt_pending_remove(cmd);
2376         else
2377                 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
2378
2379 failed:
2380         hci_dev_unlock(hdev);
2381         return err;
2382 }
2383
2384 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
2385                           u16 len)
2386 {
2387         struct mgmt_cp_stop_discovery *mgmt_cp = data;
2388         struct pending_cmd *cmd;
2389         struct hci_cp_remote_name_req_cancel cp;
2390         struct inquiry_entry *e;
2391         int err;
2392
2393         BT_DBG("%s", hdev->name);
2394
2395         hci_dev_lock(hdev);
2396
2397         if (!hci_discovery_active(hdev)) {
2398                 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
2399                                    MGMT_STATUS_REJECTED, &mgmt_cp->type,
2400                                    sizeof(mgmt_cp->type));
2401                 goto unlock;
2402         }
2403
2404         if (hdev->discovery.type != mgmt_cp->type) {
2405                 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
2406                                    MGMT_STATUS_INVALID_PARAMS, &mgmt_cp->type,
2407                                    sizeof(mgmt_cp->type));
2408                 goto unlock;
2409         }
2410
2411         cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, NULL, 0);
2412         if (!cmd) {
2413                 err = -ENOMEM;
2414                 goto unlock;
2415         }
2416
2417         switch (hdev->discovery.state) {
2418         case DISCOVERY_FINDING:
2419                 if (test_bit(HCI_INQUIRY, &hdev->flags))
2420                         err = hci_cancel_inquiry(hdev);
2421                 else
2422                         err = hci_cancel_le_scan(hdev);
2423
2424                 break;
2425
2426         case DISCOVERY_RESOLVING:
2427                 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
2428                                                         NAME_PENDING);
2429                 if (!e) {
2430                         mgmt_pending_remove(cmd);
2431                         err = cmd_complete(sk, hdev->id,
2432                                            MGMT_OP_STOP_DISCOVERY, 0,
2433                                            &mgmt_cp->type,
2434                                            sizeof(mgmt_cp->type));
2435                         hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2436                         goto unlock;
2437                 }
2438
2439                 bacpy(&cp.bdaddr, &e->data.bdaddr);
2440                 err = hci_send_cmd(hdev, HCI_OP_REMOTE_NAME_REQ_CANCEL,
2441                                    sizeof(cp), &cp);
2442
2443                 break;
2444
2445         default:
2446                 BT_DBG("unknown discovery state %u", hdev->discovery.state);
2447                 err = -EFAULT;
2448         }
2449
2450         if (err < 0)
2451                 mgmt_pending_remove(cmd);
2452         else
2453                 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
2454
2455 unlock:
2456         hci_dev_unlock(hdev);
2457         return err;
2458 }
2459
2460 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
2461                         u16 len)
2462 {
2463         struct mgmt_cp_confirm_name *cp = data;
2464         struct inquiry_entry *e;
2465         int err;
2466
2467         BT_DBG("%s", hdev->name);
2468
2469         hci_dev_lock(hdev);
2470
2471         if (!hci_discovery_active(hdev)) {
2472                 err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
2473                                  MGMT_STATUS_FAILED);
2474                 goto failed;
2475         }
2476
2477         e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
2478         if (!e) {
2479                 err = cmd_status(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
2480                                  MGMT_STATUS_INVALID_PARAMS);
2481                 goto failed;
2482         }
2483
2484         if (cp->name_known) {
2485                 e->name_state = NAME_KNOWN;
2486                 list_del(&e->list);
2487         } else {
2488                 e->name_state = NAME_NEEDED;
2489                 hci_inquiry_cache_update_resolve(hdev, e);
2490         }
2491
2492         err = 0;
2493
2494 failed:
2495         hci_dev_unlock(hdev);
2496         return err;
2497 }
2498
2499 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
2500                         u16 len)
2501 {
2502         struct mgmt_cp_block_device *cp = data;
2503         u8 status;
2504         int err;
2505
2506         BT_DBG("%s", hdev->name);
2507
2508         hci_dev_lock(hdev);
2509
2510         err = hci_blacklist_add(hdev, &cp->addr.bdaddr, cp->addr.type);
2511         if (err < 0)
2512                 status = MGMT_STATUS_FAILED;
2513         else
2514                 status = 0;
2515
2516         err = cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
2517                            &cp->addr, sizeof(cp->addr));
2518
2519         hci_dev_unlock(hdev);
2520
2521         return err;
2522 }
2523
2524 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
2525                           u16 len)
2526 {
2527         struct mgmt_cp_unblock_device *cp = data;
2528         u8 status;
2529         int err;
2530
2531         BT_DBG("%s", hdev->name);
2532
2533         hci_dev_lock(hdev);
2534
2535         err = hci_blacklist_del(hdev, &cp->addr.bdaddr, cp->addr.type);
2536         if (err < 0)
2537                 status = MGMT_STATUS_INVALID_PARAMS;
2538         else
2539                 status = 0;
2540
2541         err = cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
2542                            &cp->addr, sizeof(cp->addr));
2543
2544         hci_dev_unlock(hdev);
2545
2546         return err;
2547 }
2548
2549 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
2550                          u16 len)
2551 {
2552         struct mgmt_cp_set_device_id *cp = data;
2553         int err;
2554         __u16 source;
2555
2556         BT_DBG("%s", hdev->name);
2557
2558         source = __le16_to_cpu(cp->source);
2559
2560         if (source > 0x0002)
2561                 return cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
2562                                   MGMT_STATUS_INVALID_PARAMS);
2563
2564         hci_dev_lock(hdev);
2565
2566         hdev->devid_source = source;
2567         hdev->devid_vendor = __le16_to_cpu(cp->vendor);
2568         hdev->devid_product = __le16_to_cpu(cp->product);
2569         hdev->devid_version = __le16_to_cpu(cp->version);
2570
2571         err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0, NULL, 0);
2572
2573         update_eir(hdev);
2574
2575         hci_dev_unlock(hdev);
2576
2577         return err;
2578 }
2579
2580 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
2581                                 void *data, u16 len)
2582 {
2583         struct mgmt_mode *cp = data;
2584         struct hci_cp_write_page_scan_activity acp;
2585         u8 type;
2586         int err;
2587
2588         BT_DBG("%s", hdev->name);
2589
2590         if (!hdev_is_powered(hdev))
2591                 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
2592                                   MGMT_STATUS_NOT_POWERED);
2593
2594         if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
2595                 return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
2596                                   MGMT_STATUS_REJECTED);
2597
2598         hci_dev_lock(hdev);
2599
2600         if (cp->val) {
2601                 type = PAGE_SCAN_TYPE_INTERLACED;
2602
2603                 /* 22.5 msec page scan interval */
2604                 acp.interval = __constant_cpu_to_le16(0x0024);
2605         } else {
2606                 type = PAGE_SCAN_TYPE_STANDARD; /* default */
2607
2608                 /* default 1.28 sec page scan */
2609                 acp.interval = __constant_cpu_to_le16(0x0800);
2610         }
2611
2612         /* default 11.25 msec page scan window */
2613         acp.window = __constant_cpu_to_le16(0x0012);
2614
2615         err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp),
2616                            &acp);
2617         if (err < 0) {
2618                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
2619                                  MGMT_STATUS_FAILED);
2620                 goto done;
2621         }
2622
2623         err = hci_send_cmd(hdev, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
2624         if (err < 0) {
2625                 err = cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
2626                                  MGMT_STATUS_FAILED);
2627                 goto done;
2628         }
2629
2630         err = cmd_complete(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, 0,
2631                            NULL, 0);
2632 done:
2633         hci_dev_unlock(hdev);
2634         return err;
2635 }
2636
2637 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
2638                                void *cp_data, u16 len)
2639 {
2640         struct mgmt_cp_load_long_term_keys *cp = cp_data;
2641         u16 key_count, expected_len;
2642         int i;
2643
2644         key_count = __le16_to_cpu(cp->key_count);
2645
2646         expected_len = sizeof(*cp) + key_count *
2647                                         sizeof(struct mgmt_ltk_info);
2648         if (expected_len != len) {
2649                 BT_ERR("load_keys: expected %u bytes, got %u bytes",
2650                                                         len, expected_len);
2651                 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
2652                                   EINVAL);
2653         }
2654
2655         BT_DBG("%s key_count %u", hdev->name, key_count);
2656
2657         hci_dev_lock(hdev);
2658
2659         hci_smp_ltks_clear(hdev);
2660
2661         for (i = 0; i < key_count; i++) {
2662                 struct mgmt_ltk_info *key = &cp->keys[i];
2663                 u8 type;
2664
2665                 if (key->master)
2666                         type = HCI_SMP_LTK;
2667                 else
2668                         type = HCI_SMP_LTK_SLAVE;
2669
2670                 hci_add_ltk(hdev, &key->addr.bdaddr,
2671                             bdaddr_to_le(key->addr.type),
2672                             type, 0, key->authenticated, key->val,
2673                             key->enc_size, key->ediv, key->rand);
2674         }
2675
2676         hci_dev_unlock(hdev);
2677
2678         return 0;
2679 }
2680
2681 static const struct mgmt_handler {
2682         int (*func) (struct sock *sk, struct hci_dev *hdev, void *data,
2683                      u16 data_len);
2684         bool var_len;
2685         size_t data_len;
2686 } mgmt_handlers[] = {
2687         { NULL }, /* 0x0000 (no command) */
2688         { read_version,           false, MGMT_READ_VERSION_SIZE },
2689         { read_commands,          false, MGMT_READ_COMMANDS_SIZE },
2690         { read_index_list,        false, MGMT_READ_INDEX_LIST_SIZE },
2691         { read_controller_info,   false, MGMT_READ_INFO_SIZE },
2692         { set_powered,            false, MGMT_SETTING_SIZE },
2693         { set_discoverable,       false, MGMT_SET_DISCOVERABLE_SIZE },
2694         { set_connectable,        false, MGMT_SETTING_SIZE },
2695         { set_fast_connectable,   false, MGMT_SETTING_SIZE },
2696         { set_pairable,           false, MGMT_SETTING_SIZE },
2697         { set_link_security,      false, MGMT_SETTING_SIZE },
2698         { set_ssp,                false, MGMT_SETTING_SIZE },
2699         { set_hs,                 false, MGMT_SETTING_SIZE },
2700         { set_le,                 false, MGMT_SETTING_SIZE },
2701         { set_dev_class,          false, MGMT_SET_DEV_CLASS_SIZE },
2702         { set_local_name,         false, MGMT_SET_LOCAL_NAME_SIZE },
2703         { add_uuid,               false, MGMT_ADD_UUID_SIZE },
2704         { remove_uuid,            false, MGMT_REMOVE_UUID_SIZE },
2705         { load_link_keys,         true,  MGMT_LOAD_LINK_KEYS_SIZE },
2706         { load_long_term_keys,    true,  MGMT_LOAD_LONG_TERM_KEYS_SIZE },
2707         { disconnect,             false, MGMT_DISCONNECT_SIZE },
2708         { get_connections,        false, MGMT_GET_CONNECTIONS_SIZE },
2709         { pin_code_reply,         false, MGMT_PIN_CODE_REPLY_SIZE },
2710         { pin_code_neg_reply,     false, MGMT_PIN_CODE_NEG_REPLY_SIZE },
2711         { set_io_capability,      false, MGMT_SET_IO_CAPABILITY_SIZE },
2712         { pair_device,            false, MGMT_PAIR_DEVICE_SIZE },
2713         { cancel_pair_device,     false, MGMT_CANCEL_PAIR_DEVICE_SIZE },
2714         { unpair_device,          false, MGMT_UNPAIR_DEVICE_SIZE },
2715         { user_confirm_reply,     false, MGMT_USER_CONFIRM_REPLY_SIZE },
2716         { user_confirm_neg_reply, false, MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
2717         { user_passkey_reply,     false, MGMT_USER_PASSKEY_REPLY_SIZE },
2718         { user_passkey_neg_reply, false, MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
2719         { read_local_oob_data,    false, MGMT_READ_LOCAL_OOB_DATA_SIZE },
2720         { add_remote_oob_data,    false, MGMT_ADD_REMOTE_OOB_DATA_SIZE },
2721         { remove_remote_oob_data, false, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
2722         { start_discovery,        false, MGMT_START_DISCOVERY_SIZE },
2723         { stop_discovery,         false, MGMT_STOP_DISCOVERY_SIZE },
2724         { confirm_name,           false, MGMT_CONFIRM_NAME_SIZE },
2725         { block_device,           false, MGMT_BLOCK_DEVICE_SIZE },
2726         { unblock_device,         false, MGMT_UNBLOCK_DEVICE_SIZE },
2727         { set_device_id,          false, MGMT_SET_DEVICE_ID_SIZE },
2728 };
2729
2730
2731 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
2732 {
2733         void *buf;
2734         u8 *cp;
2735         struct mgmt_hdr *hdr;
2736         u16 opcode, index, len;
2737         struct hci_dev *hdev = NULL;
2738         const struct mgmt_handler *handler;
2739         int err;
2740
2741         BT_DBG("got %zu bytes", msglen);
2742
2743         if (msglen < sizeof(*hdr))
2744                 return -EINVAL;
2745
2746         buf = kmalloc(msglen, GFP_KERNEL);
2747         if (!buf)
2748                 return -ENOMEM;
2749
2750         if (memcpy_fromiovec(buf, msg->msg_iov, msglen)) {
2751                 err = -EFAULT;
2752                 goto done;
2753         }
2754
2755         hdr = buf;
2756         opcode = __le16_to_cpu(hdr->opcode);
2757         index = __le16_to_cpu(hdr->index);
2758         len = __le16_to_cpu(hdr->len);
2759
2760         if (len != msglen - sizeof(*hdr)) {
2761                 err = -EINVAL;
2762                 goto done;
2763         }
2764
2765         if (index != MGMT_INDEX_NONE) {
2766                 hdev = hci_dev_get(index);
2767                 if (!hdev) {
2768                         err = cmd_status(sk, index, opcode,
2769                                          MGMT_STATUS_INVALID_INDEX);
2770                         goto done;
2771                 }
2772         }
2773
2774         if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
2775                                         mgmt_handlers[opcode].func == NULL) {
2776                 BT_DBG("Unknown op %u", opcode);
2777                 err = cmd_status(sk, index, opcode,
2778                                  MGMT_STATUS_UNKNOWN_COMMAND);
2779                 goto done;
2780         }
2781
2782         if ((hdev && opcode < MGMT_OP_READ_INFO) ||
2783                         (!hdev && opcode >= MGMT_OP_READ_INFO)) {
2784                 err = cmd_status(sk, index, opcode,
2785                                  MGMT_STATUS_INVALID_INDEX);
2786                 goto done;
2787         }
2788
2789         handler = &mgmt_handlers[opcode];
2790
2791         if ((handler->var_len && len < handler->data_len) ||
2792                         (!handler->var_len && len != handler->data_len)) {
2793                 err = cmd_status(sk, index, opcode,
2794                                  MGMT_STATUS_INVALID_PARAMS);
2795                 goto done;
2796         }
2797
2798         if (hdev)
2799                 mgmt_init_hdev(sk, hdev);
2800
2801         cp = buf + sizeof(*hdr);
2802
2803         err = handler->func(sk, hdev, cp, len);
2804         if (err < 0)
2805                 goto done;
2806
2807         err = msglen;
2808
2809 done:
2810         if (hdev)
2811                 hci_dev_put(hdev);
2812
2813         kfree(buf);
2814         return err;
2815 }
2816
2817 static void cmd_status_rsp(struct pending_cmd *cmd, void *data)
2818 {
2819         u8 *status = data;
2820
2821         cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
2822         mgmt_pending_remove(cmd);
2823 }
2824
2825 int mgmt_index_added(struct hci_dev *hdev)
2826 {
2827         return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
2828 }
2829
2830 int mgmt_index_removed(struct hci_dev *hdev)
2831 {
2832         u8 status = MGMT_STATUS_INVALID_INDEX;
2833
2834         mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
2835
2836         return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
2837 }
2838
2839 struct cmd_lookup {
2840         struct sock *sk;
2841         struct hci_dev *hdev;
2842         u8 mgmt_status;
2843 };
2844
2845 static void settings_rsp(struct pending_cmd *cmd, void *data)
2846 {
2847         struct cmd_lookup *match = data;
2848
2849         send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
2850
2851         list_del(&cmd->list);
2852
2853         if (match->sk == NULL) {
2854                 match->sk = cmd->sk;
2855                 sock_hold(match->sk);
2856         }
2857
2858         mgmt_pending_free(cmd);
2859 }
2860
2861 int mgmt_powered(struct hci_dev *hdev, u8 powered)
2862 {
2863         struct cmd_lookup match = { NULL, hdev };
2864         int err;
2865
2866         if (!test_bit(HCI_MGMT, &hdev->dev_flags))
2867                 return 0;
2868
2869         mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
2870
2871         if (powered) {
2872                 u8 scan = 0;
2873
2874                 if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
2875                         scan |= SCAN_PAGE;
2876                 if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
2877                         scan |= SCAN_INQUIRY;
2878
2879                 if (scan)
2880                         hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
2881
2882                 update_class(hdev);
2883                 update_name(hdev, hdev->dev_name);
2884                 update_eir(hdev);
2885         } else {
2886                 u8 status = MGMT_STATUS_NOT_POWERED;
2887                 mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
2888         }
2889
2890         err = new_settings(hdev, match.sk);
2891
2892         if (match.sk)
2893                 sock_put(match.sk);
2894
2895         return err;
2896 }
2897
2898 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
2899 {
2900         struct cmd_lookup match = { NULL, hdev };
2901         bool changed = false;
2902         int err = 0;
2903
2904         if (discoverable) {
2905                 if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
2906                         changed = true;
2907         } else {
2908                 if (test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
2909                         changed = true;
2910         }
2911
2912         mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp,
2913                              &match);
2914
2915         if (changed)
2916                 err = new_settings(hdev, match.sk);
2917
2918         if (match.sk)
2919                 sock_put(match.sk);
2920
2921         return err;
2922 }
2923
2924 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
2925 {
2926         struct cmd_lookup match = { NULL, hdev };
2927         bool changed = false;
2928         int err = 0;
2929
2930         if (connectable) {
2931                 if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags))
2932                         changed = true;
2933         } else {
2934                 if (test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags))
2935                         changed = true;
2936         }
2937
2938         mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev, settings_rsp,
2939                              &match);
2940
2941         if (changed)
2942                 err = new_settings(hdev, match.sk);
2943
2944         if (match.sk)
2945                 sock_put(match.sk);
2946
2947         return err;
2948 }
2949
2950 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
2951 {
2952         u8 mgmt_err = mgmt_status(status);
2953
2954         if (scan & SCAN_PAGE)
2955                 mgmt_pending_foreach(MGMT_OP_SET_CONNECTABLE, hdev,
2956                                      cmd_status_rsp, &mgmt_err);
2957
2958         if (scan & SCAN_INQUIRY)
2959                 mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev,
2960                                      cmd_status_rsp, &mgmt_err);
2961
2962         return 0;
2963 }
2964
2965 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
2966                       bool persistent)
2967 {
2968         struct mgmt_ev_new_link_key ev;
2969
2970         memset(&ev, 0, sizeof(ev));
2971
2972         ev.store_hint = persistent;
2973         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
2974         ev.key.addr.type = BDADDR_BREDR;
2975         ev.key.type = key->type;
2976         memcpy(ev.key.val, key->val, 16);
2977         ev.key.pin_len = key->pin_len;
2978
2979         return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
2980 }
2981
2982 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
2983 {
2984         struct mgmt_ev_new_long_term_key ev;
2985
2986         memset(&ev, 0, sizeof(ev));
2987
2988         ev.store_hint = persistent;
2989         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
2990         ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
2991         ev.key.authenticated = key->authenticated;
2992         ev.key.enc_size = key->enc_size;
2993         ev.key.ediv = key->ediv;
2994
2995         if (key->type == HCI_SMP_LTK)
2996                 ev.key.master = 1;
2997
2998         memcpy(ev.key.rand, key->rand, sizeof(key->rand));
2999         memcpy(ev.key.val, key->val, sizeof(key->val));
3000
3001         return mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev),
3002                           NULL);
3003 }
3004
3005 int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
3006                           u8 addr_type, u32 flags, u8 *name, u8 name_len,
3007                           u8 *dev_class)
3008 {
3009         char buf[512];
3010         struct mgmt_ev_device_connected *ev = (void *) buf;
3011         u16 eir_len = 0;
3012
3013         bacpy(&ev->addr.bdaddr, bdaddr);
3014         ev->addr.type = link_to_bdaddr(link_type, addr_type);
3015
3016         ev->flags = __cpu_to_le32(flags);
3017
3018         if (name_len > 0)
3019                 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
3020                                           name, name_len);
3021
3022         if (dev_class && memcmp(dev_class, "\0\0\0", 3) != 0)
3023                 eir_len = eir_append_data(ev->eir, eir_len,
3024                                           EIR_CLASS_OF_DEV, dev_class, 3);
3025
3026         ev->eir_len = cpu_to_le16(eir_len);
3027
3028         return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
3029                           sizeof(*ev) + eir_len, NULL);
3030 }
3031
3032 static void disconnect_rsp(struct pending_cmd *cmd, void *data)
3033 {
3034         struct mgmt_cp_disconnect *cp = cmd->param;
3035         struct sock **sk = data;
3036         struct mgmt_rp_disconnect rp;
3037
3038         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3039         rp.addr.type = cp->addr.type;
3040
3041         cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, 0, &rp,
3042                      sizeof(rp));
3043
3044         *sk = cmd->sk;
3045         sock_hold(*sk);
3046
3047         mgmt_pending_remove(cmd);
3048 }
3049
3050 static void unpair_device_rsp(struct pending_cmd *cmd, void *data)
3051 {
3052         struct hci_dev *hdev = data;
3053         struct mgmt_cp_unpair_device *cp = cmd->param;
3054         struct mgmt_rp_unpair_device rp;
3055
3056         memset(&rp, 0, sizeof(rp));
3057         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3058         rp.addr.type = cp->addr.type;
3059
3060         device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
3061
3062         cmd_complete(cmd->sk, cmd->index, cmd->opcode, 0, &rp, sizeof(rp));
3063
3064         mgmt_pending_remove(cmd);
3065 }
3066
3067 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
3068                              u8 link_type, u8 addr_type)
3069 {
3070         struct mgmt_addr_info ev;
3071         struct sock *sk = NULL;
3072         int err;
3073
3074         mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
3075
3076         bacpy(&ev.bdaddr, bdaddr);
3077         ev.type = link_to_bdaddr(link_type, addr_type);
3078
3079         err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev),
3080                          sk);
3081
3082         if (sk)
3083                 sock_put(sk);
3084
3085         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
3086                              hdev);
3087
3088         return err;
3089 }
3090
3091 int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
3092                            u8 link_type, u8 addr_type, u8 status)
3093 {
3094         struct mgmt_rp_disconnect rp;
3095         struct pending_cmd *cmd;
3096         int err;
3097
3098         cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev);
3099         if (!cmd)
3100                 return -ENOENT;
3101
3102         bacpy(&rp.addr.bdaddr, bdaddr);
3103         rp.addr.type = link_to_bdaddr(link_type, addr_type);
3104
3105         err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
3106                            mgmt_status(status), &rp, sizeof(rp));
3107
3108         mgmt_pending_remove(cmd);
3109
3110         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
3111                                                                         hdev);
3112         return err;
3113 }
3114
3115 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
3116                         u8 addr_type, u8 status)
3117 {
3118         struct mgmt_ev_connect_failed ev;
3119
3120         bacpy(&ev.addr.bdaddr, bdaddr);
3121         ev.addr.type = link_to_bdaddr(link_type, addr_type);
3122         ev.status = mgmt_status(status);
3123
3124         return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
3125 }
3126
3127 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
3128 {
3129         struct mgmt_ev_pin_code_request ev;
3130
3131         bacpy(&ev.addr.bdaddr, bdaddr);
3132         ev.addr.type = BDADDR_BREDR;
3133         ev.secure = secure;
3134
3135         return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev),
3136                           NULL);
3137 }
3138
3139 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3140                                  u8 status)
3141 {
3142         struct pending_cmd *cmd;
3143         struct mgmt_rp_pin_code_reply rp;
3144         int err;
3145
3146         cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
3147         if (!cmd)
3148                 return -ENOENT;
3149
3150         bacpy(&rp.addr.bdaddr, bdaddr);
3151         rp.addr.type = BDADDR_BREDR;
3152
3153         err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3154                            mgmt_status(status), &rp, sizeof(rp));
3155
3156         mgmt_pending_remove(cmd);
3157
3158         return err;
3159 }
3160
3161 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3162                                      u8 status)
3163 {
3164         struct pending_cmd *cmd;
3165         struct mgmt_rp_pin_code_reply rp;
3166         int err;
3167
3168         cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
3169         if (!cmd)
3170                 return -ENOENT;
3171
3172         bacpy(&rp.addr.bdaddr, bdaddr);
3173         rp.addr.type = BDADDR_BREDR;
3174
3175         err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
3176                            mgmt_status(status), &rp, sizeof(rp));
3177
3178         mgmt_pending_remove(cmd);
3179
3180         return err;
3181 }
3182
3183 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
3184                               u8 link_type, u8 addr_type, __le32 value,
3185                               u8 confirm_hint)
3186 {
3187         struct mgmt_ev_user_confirm_request ev;
3188
3189         BT_DBG("%s", hdev->name);
3190
3191         bacpy(&ev.addr.bdaddr, bdaddr);
3192         ev.addr.type = link_to_bdaddr(link_type, addr_type);
3193         ev.confirm_hint = confirm_hint;
3194         ev.value = value;
3195
3196         return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
3197                           NULL);
3198 }
3199
3200 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
3201                                                 u8 link_type, u8 addr_type)
3202 {
3203         struct mgmt_ev_user_passkey_request ev;
3204
3205         BT_DBG("%s", hdev->name);
3206
3207         bacpy(&ev.addr.bdaddr, bdaddr);
3208         ev.addr.type = link_to_bdaddr(link_type, addr_type);
3209
3210         return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
3211                           NULL);
3212 }
3213
3214 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3215                                         u8 link_type, u8 addr_type, u8 status,
3216                                         u8 opcode)
3217 {
3218         struct pending_cmd *cmd;
3219         struct mgmt_rp_user_confirm_reply rp;
3220         int err;
3221
3222         cmd = mgmt_pending_find(opcode, hdev);
3223         if (!cmd)
3224                 return -ENOENT;
3225
3226         bacpy(&rp.addr.bdaddr, bdaddr);
3227         rp.addr.type = link_to_bdaddr(link_type, addr_type);
3228         err = cmd_complete(cmd->sk, hdev->id, opcode, mgmt_status(status),
3229                            &rp, sizeof(rp));
3230
3231         mgmt_pending_remove(cmd);
3232
3233         return err;
3234 }
3235
3236 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3237                                      u8 link_type, u8 addr_type, u8 status)
3238 {
3239         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
3240                                           status, MGMT_OP_USER_CONFIRM_REPLY);
3241 }
3242
3243 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3244                                          u8 link_type, u8 addr_type, u8 status)
3245 {
3246         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
3247                                           status, MGMT_OP_USER_CONFIRM_NEG_REPLY);
3248 }
3249
3250 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3251                                      u8 link_type, u8 addr_type, u8 status)
3252 {
3253         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
3254                                           status, MGMT_OP_USER_PASSKEY_REPLY);
3255 }
3256
3257 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
3258                                          u8 link_type, u8 addr_type, u8 status)
3259 {
3260         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
3261                                           status, MGMT_OP_USER_PASSKEY_NEG_REPLY);
3262 }
3263
3264 int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
3265                      u8 addr_type, u8 status)
3266 {
3267         struct mgmt_ev_auth_failed ev;
3268
3269         bacpy(&ev.addr.bdaddr, bdaddr);
3270         ev.addr.type = link_to_bdaddr(link_type, addr_type);
3271         ev.status = mgmt_status(status);
3272
3273         return mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL);
3274 }
3275
3276 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
3277 {
3278         struct cmd_lookup match = { NULL, hdev };
3279         bool changed = false;
3280         int err = 0;
3281
3282         if (status) {
3283                 u8 mgmt_err = mgmt_status(status);
3284                 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
3285                                      cmd_status_rsp, &mgmt_err);
3286                 return 0;
3287         }
3288
3289         if (test_bit(HCI_AUTH, &hdev->flags)) {
3290                 if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
3291                         changed = true;
3292         } else {
3293                 if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
3294                         changed = true;
3295         }
3296
3297         mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
3298                              &match);
3299
3300         if (changed)
3301                 err = new_settings(hdev, match.sk);
3302
3303         if (match.sk)
3304                 sock_put(match.sk);
3305
3306         return err;
3307 }
3308
3309 static int clear_eir(struct hci_dev *hdev)
3310 {
3311         struct hci_cp_write_eir cp;
3312
3313         if (!(hdev->features[6] & LMP_EXT_INQ))
3314                 return 0;
3315
3316         memset(hdev->eir, 0, sizeof(hdev->eir));
3317
3318         memset(&cp, 0, sizeof(cp));
3319
3320         return hci_send_cmd(hdev, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
3321 }
3322
3323 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
3324 {
3325         struct cmd_lookup match = { NULL, hdev };
3326         bool changed = false;
3327         int err = 0;
3328
3329         if (status) {
3330                 u8 mgmt_err = mgmt_status(status);
3331
3332                 if (enable && test_and_clear_bit(HCI_SSP_ENABLED,
3333                                                  &hdev->dev_flags))
3334                         err = new_settings(hdev, NULL);
3335
3336                 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
3337                                      &mgmt_err);
3338
3339                 return err;
3340         }
3341
3342         if (enable) {
3343                 if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
3344                         changed = true;
3345         } else {
3346                 if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
3347                         changed = true;
3348         }
3349
3350         mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
3351
3352         if (changed)
3353                 err = new_settings(hdev, match.sk);
3354
3355         if (match.sk)
3356                 sock_put(match.sk);
3357
3358         if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
3359                 update_eir(hdev);
3360         else
3361                 clear_eir(hdev);
3362
3363         return err;
3364 }
3365
3366 static void class_rsp(struct pending_cmd *cmd, void *data)
3367 {
3368         struct cmd_lookup *match = data;
3369
3370         cmd_complete(cmd->sk, cmd->index, cmd->opcode, match->mgmt_status,
3371                      match->hdev->dev_class, 3);
3372
3373         list_del(&cmd->list);
3374
3375         if (match->sk == NULL) {
3376                 match->sk = cmd->sk;
3377                 sock_hold(match->sk);
3378         }
3379
3380         mgmt_pending_free(cmd);
3381 }
3382
3383 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
3384                                    u8 status)
3385 {
3386         struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
3387         int err = 0;
3388
3389         clear_bit(HCI_PENDING_CLASS, &hdev->dev_flags);
3390
3391         mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, class_rsp, &match);
3392         mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, class_rsp, &match);
3393         mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, class_rsp, &match);
3394
3395         if (!status)
3396                 err = mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class,
3397                                  3, NULL);
3398
3399         if (match.sk)
3400                 sock_put(match.sk);
3401
3402         return err;
3403 }
3404
3405 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
3406 {
3407         struct pending_cmd *cmd;
3408         struct mgmt_cp_set_local_name ev;
3409         bool changed = false;
3410         int err = 0;
3411
3412         if (memcmp(name, hdev->dev_name, sizeof(hdev->dev_name)) != 0) {
3413                 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
3414                 changed = true;
3415         }
3416
3417         memset(&ev, 0, sizeof(ev));
3418         memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
3419         memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
3420
3421         cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
3422         if (!cmd)
3423                 goto send_event;
3424
3425         /* Always assume that either the short or the complete name has
3426          * changed if there was a pending mgmt command */
3427         changed = true;
3428
3429         if (status) {
3430                 err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3431                                  mgmt_status(status));
3432                 goto failed;
3433         }
3434
3435         err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0, &ev,
3436                            sizeof(ev));
3437         if (err < 0)
3438                 goto failed;
3439
3440 send_event:
3441         if (changed)
3442                 err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev,
3443                                  sizeof(ev), cmd ? cmd->sk : NULL);
3444
3445         update_eir(hdev);
3446
3447 failed:
3448         if (cmd)
3449                 mgmt_pending_remove(cmd);
3450         return err;
3451 }
3452
3453 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
3454                                             u8 *randomizer, u8 status)
3455 {
3456         struct pending_cmd *cmd;
3457         int err;
3458
3459         BT_DBG("%s status %u", hdev->name, status);
3460
3461         cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
3462         if (!cmd)
3463                 return -ENOENT;
3464
3465         if (status) {
3466                 err = cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3467                                  mgmt_status(status));
3468         } else {
3469                 struct mgmt_rp_read_local_oob_data rp;
3470
3471                 memcpy(rp.hash, hash, sizeof(rp.hash));
3472                 memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer));
3473
3474                 err = cmd_complete(cmd->sk, hdev->id,
3475                                    MGMT_OP_READ_LOCAL_OOB_DATA, 0, &rp,
3476                                    sizeof(rp));
3477         }
3478
3479         mgmt_pending_remove(cmd);
3480
3481         return err;
3482 }
3483
3484 int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
3485 {
3486         struct cmd_lookup match = { NULL, hdev };
3487         bool changed = false;
3488         int err = 0;
3489
3490         if (status) {
3491                 u8 mgmt_err = mgmt_status(status);
3492
3493                 if (enable && test_and_clear_bit(HCI_LE_ENABLED,
3494                                                  &hdev->dev_flags))
3495                         err = new_settings(hdev, NULL);
3496
3497                 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
3498                                      &mgmt_err);
3499
3500                 return err;
3501         }
3502
3503         if (enable) {
3504                 if (!test_and_set_bit(HCI_LE_ENABLED, &hdev->dev_flags))
3505                         changed = true;
3506         } else {
3507                 if (test_and_clear_bit(HCI_LE_ENABLED, &hdev->dev_flags))
3508                         changed = true;
3509         }
3510
3511         mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
3512
3513         if (changed)
3514                 err = new_settings(hdev, match.sk);
3515
3516         if (match.sk)
3517                 sock_put(match.sk);
3518
3519         return err;
3520 }
3521
3522 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
3523                       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
3524                       ssp, u8 *eir, u16 eir_len)
3525 {
3526         char buf[512];
3527         struct mgmt_ev_device_found *ev = (void *) buf;
3528         size_t ev_size;
3529
3530         /* Leave 5 bytes for a potential CoD field */
3531         if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
3532                 return -EINVAL;
3533
3534         memset(buf, 0, sizeof(buf));
3535
3536         bacpy(&ev->addr.bdaddr, bdaddr);
3537         ev->addr.type = link_to_bdaddr(link_type, addr_type);
3538         ev->rssi = rssi;
3539         if (cfm_name)
3540                 ev->flags[0] |= MGMT_DEV_FOUND_CONFIRM_NAME;
3541         if (!ssp)
3542                 ev->flags[0] |= MGMT_DEV_FOUND_LEGACY_PAIRING;
3543
3544         if (eir_len > 0)
3545                 memcpy(ev->eir, eir, eir_len);
3546
3547         if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
3548                 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
3549                                           dev_class, 3);
3550
3551         ev->eir_len = cpu_to_le16(eir_len);
3552
3553         ev_size = sizeof(*ev) + eir_len;
3554
3555         return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
3556 }
3557
3558 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
3559                      u8 addr_type, s8 rssi, u8 *name, u8 name_len)
3560 {
3561         struct mgmt_ev_device_found *ev;
3562         char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
3563         u16 eir_len;
3564
3565         ev = (struct mgmt_ev_device_found *) buf;
3566
3567         memset(buf, 0, sizeof(buf));
3568
3569         bacpy(&ev->addr.bdaddr, bdaddr);
3570         ev->addr.type = link_to_bdaddr(link_type, addr_type);
3571         ev->rssi = rssi;
3572
3573         eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
3574                                   name_len);
3575
3576         ev->eir_len = cpu_to_le16(eir_len);
3577
3578         return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev,
3579                           sizeof(*ev) + eir_len, NULL);
3580 }
3581
3582 int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status)
3583 {
3584         struct pending_cmd *cmd;
3585         u8 type;
3586         int err;
3587
3588         hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
3589
3590         cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
3591         if (!cmd)
3592                 return -ENOENT;
3593
3594         type = hdev->discovery.type;
3595
3596         err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
3597                            &type, sizeof(type));
3598         mgmt_pending_remove(cmd);
3599
3600         return err;
3601 }
3602
3603 int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status)
3604 {
3605         struct pending_cmd *cmd;
3606         int err;
3607
3608         cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
3609         if (!cmd)
3610                 return -ENOENT;
3611
3612         err = cmd_complete(cmd->sk, hdev->id, cmd->opcode, mgmt_status(status),
3613                            &hdev->discovery.type, sizeof(hdev->discovery.type));
3614         mgmt_pending_remove(cmd);
3615
3616         return err;
3617 }
3618
3619 int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
3620 {
3621         struct mgmt_ev_discovering ev;
3622         struct pending_cmd *cmd;
3623
3624         BT_DBG("%s discovering %u", hdev->name, discovering);
3625
3626         if (discovering)
3627                 cmd = mgmt_pending_find(MGMT_OP_START_DISCOVERY, hdev);
3628         else
3629                 cmd = mgmt_pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
3630
3631         if (cmd != NULL) {
3632                 u8 type = hdev->discovery.type;
3633
3634                 cmd_complete(cmd->sk, hdev->id, cmd->opcode, 0, &type,
3635                              sizeof(type));
3636                 mgmt_pending_remove(cmd);
3637         }
3638
3639         memset(&ev, 0, sizeof(ev));
3640         ev.type = hdev->discovery.type;
3641         ev.discovering = discovering;
3642
3643         return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
3644 }
3645
3646 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
3647 {
3648         struct pending_cmd *cmd;
3649         struct mgmt_ev_device_blocked ev;
3650
3651         cmd = mgmt_pending_find(MGMT_OP_BLOCK_DEVICE, hdev);
3652
3653         bacpy(&ev.addr.bdaddr, bdaddr);
3654         ev.addr.type = type;
3655
3656         return mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &ev, sizeof(ev),
3657                           cmd ? cmd->sk : NULL);
3658 }
3659
3660 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
3661 {
3662         struct pending_cmd *cmd;
3663         struct mgmt_ev_device_unblocked ev;
3664
3665         cmd = mgmt_pending_find(MGMT_OP_UNBLOCK_DEVICE, hdev);
3666
3667         bacpy(&ev.addr.bdaddr, bdaddr);
3668         ev.addr.type = type;
3669
3670         return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
3671                           cmd ? cmd->sk : NULL);
3672 }
3673
3674 module_param(enable_hs, bool, 0644);
3675 MODULE_PARM_DESC(enable_hs, "Enable High Speed support");