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/module.h>
  28 #include <asm/unaligned.h>
  29
  30 #include <net/bluetooth/bluetooth.h>
  31 #include <net/bluetooth/hci_core.h>
  32 #include <net/bluetooth/hci_sock.h>
  33 #include <net/bluetooth/l2cap.h>
  34 #include <net/bluetooth/mgmt.h>
  35
  36 #include "hci_request.h"
  37 #include "smp.h"
  38 #include "mgmt_util.h"
  39
  40 #define MGMT_VERSION    1
  41 #define MGMT_REVISION   9
  42
  43 static const u16 mgmt_commands[] = {
  44         MGMT_OP_READ_INDEX_LIST,
  45         MGMT_OP_READ_INFO,
  46         MGMT_OP_SET_POWERED,
  47         MGMT_OP_SET_DISCOVERABLE,
  48         MGMT_OP_SET_CONNECTABLE,
  49         MGMT_OP_SET_FAST_CONNECTABLE,
  50         MGMT_OP_SET_BONDABLE,
  51         MGMT_OP_SET_LINK_SECURITY,
  52         MGMT_OP_SET_SSP,
  53         MGMT_OP_SET_HS,
  54         MGMT_OP_SET_LE,
  55         MGMT_OP_SET_DEV_CLASS,
  56         MGMT_OP_SET_LOCAL_NAME,
  57         MGMT_OP_ADD_UUID,
  58         MGMT_OP_REMOVE_UUID,
  59         MGMT_OP_LOAD_LINK_KEYS,
  60         MGMT_OP_LOAD_LONG_TERM_KEYS,
  61         MGMT_OP_DISCONNECT,
  62         MGMT_OP_GET_CONNECTIONS,
  63         MGMT_OP_PIN_CODE_REPLY,
  64         MGMT_OP_PIN_CODE_NEG_REPLY,
  65         MGMT_OP_SET_IO_CAPABILITY,
  66         MGMT_OP_PAIR_DEVICE,
  67         MGMT_OP_CANCEL_PAIR_DEVICE,
  68         MGMT_OP_UNPAIR_DEVICE,
  69         MGMT_OP_USER_CONFIRM_REPLY,
  70         MGMT_OP_USER_CONFIRM_NEG_REPLY,
  71         MGMT_OP_USER_PASSKEY_REPLY,
  72         MGMT_OP_USER_PASSKEY_NEG_REPLY,
  73         MGMT_OP_READ_LOCAL_OOB_DATA,
  74         MGMT_OP_ADD_REMOTE_OOB_DATA,
  75         MGMT_OP_REMOVE_REMOTE_OOB_DATA,
  76         MGMT_OP_START_DISCOVERY,
  77         MGMT_OP_STOP_DISCOVERY,
  78         MGMT_OP_CONFIRM_NAME,
  79         MGMT_OP_BLOCK_DEVICE,
  80         MGMT_OP_UNBLOCK_DEVICE,
  81         MGMT_OP_SET_DEVICE_ID,
  82         MGMT_OP_SET_ADVERTISING,
  83         MGMT_OP_SET_BREDR,
  84         MGMT_OP_SET_STATIC_ADDRESS,
  85         MGMT_OP_SET_SCAN_PARAMS,
  86         MGMT_OP_SET_SECURE_CONN,
  87         MGMT_OP_SET_DEBUG_KEYS,
  88         MGMT_OP_SET_PRIVACY,
  89         MGMT_OP_LOAD_IRKS,
  90         MGMT_OP_GET_CONN_INFO,
  91         MGMT_OP_GET_CLOCK_INFO,
  92         MGMT_OP_ADD_DEVICE,
  93         MGMT_OP_REMOVE_DEVICE,
  94         MGMT_OP_LOAD_CONN_PARAM,
  95         MGMT_OP_READ_UNCONF_INDEX_LIST,
  96         MGMT_OP_READ_CONFIG_INFO,
  97         MGMT_OP_SET_EXTERNAL_CONFIG,
  98         MGMT_OP_SET_PUBLIC_ADDRESS,
  99         MGMT_OP_START_SERVICE_DISCOVERY,
 100         MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
 101         MGMT_OP_READ_EXT_INDEX_LIST,
 102         MGMT_OP_READ_ADV_FEATURES,
 103         MGMT_OP_ADD_ADVERTISING,
 104         MGMT_OP_REMOVE_ADVERTISING,
 105 };
 106
 107 static const u16 mgmt_events[] = {
 108         MGMT_EV_CONTROLLER_ERROR,
 109         MGMT_EV_INDEX_ADDED,
 110         MGMT_EV_INDEX_REMOVED,
 111         MGMT_EV_NEW_SETTINGS,
 112         MGMT_EV_CLASS_OF_DEV_CHANGED,
 113         MGMT_EV_LOCAL_NAME_CHANGED,
 114         MGMT_EV_NEW_LINK_KEY,
 115         MGMT_EV_NEW_LONG_TERM_KEY,
 116         MGMT_EV_DEVICE_CONNECTED,
 117         MGMT_EV_DEVICE_DISCONNECTED,
 118         MGMT_EV_CONNECT_FAILED,
 119         MGMT_EV_PIN_CODE_REQUEST,
 120         MGMT_EV_USER_CONFIRM_REQUEST,
 121         MGMT_EV_USER_PASSKEY_REQUEST,
 122         MGMT_EV_AUTH_FAILED,
 123         MGMT_EV_DEVICE_FOUND,
 124         MGMT_EV_DISCOVERING,
 125         MGMT_EV_DEVICE_BLOCKED,
 126         MGMT_EV_DEVICE_UNBLOCKED,
 127         MGMT_EV_DEVICE_UNPAIRED,
 128         MGMT_EV_PASSKEY_NOTIFY,
 129         MGMT_EV_NEW_IRK,
 130         MGMT_EV_NEW_CSRK,
 131         MGMT_EV_DEVICE_ADDED,
 132         MGMT_EV_DEVICE_REMOVED,
 133         MGMT_EV_NEW_CONN_PARAM,
 134         MGMT_EV_UNCONF_INDEX_ADDED,
 135         MGMT_EV_UNCONF_INDEX_REMOVED,
 136         MGMT_EV_NEW_CONFIG_OPTIONS,
 137         MGMT_EV_EXT_INDEX_ADDED,
 138         MGMT_EV_EXT_INDEX_REMOVED,
 139         MGMT_EV_LOCAL_OOB_DATA_UPDATED,
 140         MGMT_EV_ADVERTISING_ADDED,
 141         MGMT_EV_ADVERTISING_REMOVED,
 142 };
 143
 144 static const u16 mgmt_untrusted_commands[] = {
 145         MGMT_OP_READ_INDEX_LIST,
 146         MGMT_OP_READ_INFO,
 147         MGMT_OP_READ_UNCONF_INDEX_LIST,
 148         MGMT_OP_READ_CONFIG_INFO,
 149         MGMT_OP_READ_EXT_INDEX_LIST,
 150 };
 151
 152 static const u16 mgmt_untrusted_events[] = {
 153         MGMT_EV_INDEX_ADDED,
 154         MGMT_EV_INDEX_REMOVED,
 155         MGMT_EV_NEW_SETTINGS,
 156         MGMT_EV_CLASS_OF_DEV_CHANGED,
 157         MGMT_EV_LOCAL_NAME_CHANGED,
 158         MGMT_EV_UNCONF_INDEX_ADDED,
 159         MGMT_EV_UNCONF_INDEX_REMOVED,
 160         MGMT_EV_NEW_CONFIG_OPTIONS,
 161         MGMT_EV_EXT_INDEX_ADDED,
 162         MGMT_EV_EXT_INDEX_REMOVED,
 163 };
 164
 165 #define CACHE_TIMEOUT   msecs_to_jiffies(2 * 1000)
 166
 167 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
 168                  "\x00\x00\x00\x00\x00\x00\x00\x00"
 169
 170 /* HCI to MGMT error code conversion table */
 171 static u8 mgmt_status_table[] = {
 172         MGMT_STATUS_SUCCESS,
 173         MGMT_STATUS_UNKNOWN_COMMAND,    /* Unknown Command */
 174         MGMT_STATUS_NOT_CONNECTED,      /* No Connection */
 175         MGMT_STATUS_FAILED,             /* Hardware Failure */
 176         MGMT_STATUS_CONNECT_FAILED,     /* Page Timeout */
 177         MGMT_STATUS_AUTH_FAILED,        /* Authentication Failed */
 178         MGMT_STATUS_AUTH_FAILED,        /* PIN or Key Missing */
 179         MGMT_STATUS_NO_RESOURCES,       /* Memory Full */
 180         MGMT_STATUS_TIMEOUT,            /* Connection Timeout */
 181         MGMT_STATUS_NO_RESOURCES,       /* Max Number of Connections */
 182         MGMT_STATUS_NO_RESOURCES,       /* Max Number of SCO Connections */
 183         MGMT_STATUS_ALREADY_CONNECTED,  /* ACL Connection Exists */
 184         MGMT_STATUS_BUSY,               /* Command Disallowed */
 185         MGMT_STATUS_NO_RESOURCES,       /* Rejected Limited Resources */
 186         MGMT_STATUS_REJECTED,           /* Rejected Security */
 187         MGMT_STATUS_REJECTED,           /* Rejected Personal */
 188         MGMT_STATUS_TIMEOUT,            /* Host Timeout */
 189         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Feature */
 190         MGMT_STATUS_INVALID_PARAMS,     /* Invalid Parameters */
 191         MGMT_STATUS_DISCONNECTED,       /* OE User Ended Connection */
 192         MGMT_STATUS_NO_RESOURCES,       /* OE Low Resources */
 193         MGMT_STATUS_DISCONNECTED,       /* OE Power Off */
 194         MGMT_STATUS_DISCONNECTED,       /* Connection Terminated */
 195         MGMT_STATUS_BUSY,               /* Repeated Attempts */
 196         MGMT_STATUS_REJECTED,           /* Pairing Not Allowed */
 197         MGMT_STATUS_FAILED,             /* Unknown LMP PDU */
 198         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported Remote Feature */
 199         MGMT_STATUS_REJECTED,           /* SCO Offset Rejected */
 200         MGMT_STATUS_REJECTED,           /* SCO Interval Rejected */
 201         MGMT_STATUS_REJECTED,           /* Air Mode Rejected */
 202         MGMT_STATUS_INVALID_PARAMS,     /* Invalid LMP Parameters */
 203         MGMT_STATUS_FAILED,             /* Unspecified Error */
 204         MGMT_STATUS_NOT_SUPPORTED,      /* Unsupported LMP Parameter Value */
 205         MGMT_STATUS_FAILED,             /* Role Change Not Allowed */
 206         MGMT_STATUS_TIMEOUT,            /* LMP Response Timeout */
 207         MGMT_STATUS_FAILED,             /* LMP Error Transaction Collision */
 208         MGMT_STATUS_FAILED,             /* LMP PDU Not Allowed */
 209         MGMT_STATUS_REJECTED,           /* Encryption Mode Not Accepted */
 210         MGMT_STATUS_FAILED,             /* Unit Link Key Used */
 211         MGMT_STATUS_NOT_SUPPORTED,      /* QoS Not Supported */
 212         MGMT_STATUS_TIMEOUT,            /* Instant Passed */
 213         MGMT_STATUS_NOT_SUPPORTED,      /* Pairing Not Supported */
 214         MGMT_STATUS_FAILED,             /* Transaction Collision */
 215         MGMT_STATUS_INVALID_PARAMS,     /* Unacceptable Parameter */
 216         MGMT_STATUS_REJECTED,           /* QoS Rejected */
 217         MGMT_STATUS_NOT_SUPPORTED,      /* Classification Not Supported */
 218         MGMT_STATUS_REJECTED,           /* Insufficient Security */
 219         MGMT_STATUS_INVALID_PARAMS,     /* Parameter Out Of Range */
 220         MGMT_STATUS_BUSY,               /* Role Switch Pending */
 221         MGMT_STATUS_FAILED,             /* Slot Violation */
 222         MGMT_STATUS_FAILED,             /* Role Switch Failed */
 223         MGMT_STATUS_INVALID_PARAMS,     /* EIR Too Large */
 224         MGMT_STATUS_NOT_SUPPORTED,      /* Simple Pairing Not Supported */
 225         MGMT_STATUS_BUSY,               /* Host Busy Pairing */
 226         MGMT_STATUS_REJECTED,           /* Rejected, No Suitable Channel */
 227         MGMT_STATUS_BUSY,               /* Controller Busy */
 228         MGMT_STATUS_INVALID_PARAMS,     /* Unsuitable Connection Interval */
 229         MGMT_STATUS_TIMEOUT,            /* Directed Advertising Timeout */
 230         MGMT_STATUS_AUTH_FAILED,        /* Terminated Due to MIC Failure */
 231         MGMT_STATUS_CONNECT_FAILED,     /* Connection Establishment Failed */
 232         MGMT_STATUS_CONNECT_FAILED,     /* MAC Connection Failed */
 233 };
 234
 235 static u8 mgmt_status(u8 hci_status)
 236 {
 237         if (hci_status < ARRAY_SIZE(mgmt_status_table))
 238                 return mgmt_status_table[hci_status];
 239
 240         return MGMT_STATUS_FAILED;
 241 }
 242
 243 static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data,
 244                             u16 len, int flag)
 245 {
 246         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 247                                flag, NULL);
 248 }
 249
 250 static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,
 251                               u16 len, int flag, struct sock *skip_sk)
 252 {
 253         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 254                                flag, skip_sk);
 255 }
 256
 257 static int mgmt_generic_event(u16 event, struct hci_dev *hdev, void *data,
 258                               u16 len, struct sock *skip_sk)
 259 {
 260         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 261                                HCI_MGMT_GENERIC_EVENTS, skip_sk);
 262 }
 263
 264 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
 265                       struct sock *skip_sk)
 266 {
 267         return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
 268                                HCI_SOCK_TRUSTED, skip_sk);
 269 }
 270
 271 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
 272                         u16 data_len)
 273 {
 274         struct mgmt_rp_read_version rp;
 275
 276         BT_DBG("sock %p", sk);
 277
 278         rp.version = MGMT_VERSION;
 279         rp.revision = cpu_to_le16(MGMT_REVISION);
 280
 281         return mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0,
 282                                  &rp, sizeof(rp));
 283 }
 284
 285 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
 286                          u16 data_len)
 287 {
 288         struct mgmt_rp_read_commands *rp;
 289         u16 num_commands, num_events;
 290         size_t rp_size;
 291         int i, err;
 292
 293         BT_DBG("sock %p", sk);
 294
 295         if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
 296                 num_commands = ARRAY_SIZE(mgmt_commands);
 297                 num_events = ARRAY_SIZE(mgmt_events);
 298         } else {
 299                 num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
 300                 num_events = ARRAY_SIZE(mgmt_untrusted_events);
 301         }
 302
 303         rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
 304
 305         rp = kmalloc(rp_size, GFP_KERNEL);
 306         if (!rp)
 307                 return -ENOMEM;
 308
 309         rp->num_commands = cpu_to_le16(num_commands);
 310         rp->num_events = cpu_to_le16(num_events);
 311
 312         if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
 313                 __le16 *opcode = rp->opcodes;
 314
 315                 for (i = 0; i < num_commands; i++, opcode++)
 316                         put_unaligned_le16(mgmt_commands[i], opcode);
 317
 318                 for (i = 0; i < num_events; i++, opcode++)
 319                         put_unaligned_le16(mgmt_events[i], opcode);
 320         } else {
 321                 __le16 *opcode = rp->opcodes;
 322
 323                 for (i = 0; i < num_commands; i++, opcode++)
 324                         put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
 325
 326                 for (i = 0; i < num_events; i++, opcode++)
 327                         put_unaligned_le16(mgmt_untrusted_events[i], opcode);
 328         }
 329
 330         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
 331                                 rp, rp_size);
 332         kfree(rp);
 333
 334         return err;
 335 }
 336
 337 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 338                            u16 data_len)
 339 {
 340         struct mgmt_rp_read_index_list *rp;
 341         struct hci_dev *d;
 342         size_t rp_len;
 343         u16 count;
 344         int err;
 345
 346         BT_DBG("sock %p", sk);
 347
 348         read_lock(&hci_dev_list_lock);
 349
 350         count = 0;
 351         list_for_each_entry(d, &hci_dev_list, list) {
 352                 if (d->dev_type == HCI_BREDR &&
 353                     !hci_dev_test_flag(d, HCI_UNCONFIGURED))
 354                         count++;
 355         }
 356
 357         rp_len = sizeof(*rp) + (2 * count);
 358         rp = kmalloc(rp_len, GFP_ATOMIC);
 359         if (!rp) {
 360                 read_unlock(&hci_dev_list_lock);
 361                 return -ENOMEM;
 362         }
 363
 364         count = 0;
 365         list_for_each_entry(d, &hci_dev_list, list) {
 366                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 367                     hci_dev_test_flag(d, HCI_CONFIG) ||
 368                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 369                         continue;
 370
 371                 /* Devices marked as raw-only are neither configured
 372                  * nor unconfigured controllers.
 373                  */
 374                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 375                         continue;
 376
 377                 if (d->dev_type == HCI_BREDR &&
 378                     !hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
 379                         rp->index[count++] = cpu_to_le16(d->id);
 380                         BT_DBG("Added hci%u", d->id);
 381                 }
 382         }
 383
 384         rp->num_controllers = cpu_to_le16(count);
 385         rp_len = sizeof(*rp) + (2 * count);
 386
 387         read_unlock(&hci_dev_list_lock);
 388
 389         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST,
 390                                 0, rp, rp_len);
 391
 392         kfree(rp);
 393
 394         return err;
 395 }
 396
 397 static int read_unconf_index_list(struct sock *sk, struct hci_dev *hdev,
 398                                   void *data, u16 data_len)
 399 {
 400         struct mgmt_rp_read_unconf_index_list *rp;
 401         struct hci_dev *d;
 402         size_t rp_len;
 403         u16 count;
 404         int err;
 405
 406         BT_DBG("sock %p", sk);
 407
 408         read_lock(&hci_dev_list_lock);
 409
 410         count = 0;
 411         list_for_each_entry(d, &hci_dev_list, list) {
 412                 if (d->dev_type == HCI_BREDR &&
 413                     hci_dev_test_flag(d, HCI_UNCONFIGURED))
 414                         count++;
 415         }
 416
 417         rp_len = sizeof(*rp) + (2 * count);
 418         rp = kmalloc(rp_len, GFP_ATOMIC);
 419         if (!rp) {
 420                 read_unlock(&hci_dev_list_lock);
 421                 return -ENOMEM;
 422         }
 423
 424         count = 0;
 425         list_for_each_entry(d, &hci_dev_list, list) {
 426                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 427                     hci_dev_test_flag(d, HCI_CONFIG) ||
 428                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 429                         continue;
 430
 431                 /* Devices marked as raw-only are neither configured
 432                  * nor unconfigured controllers.
 433                  */
 434                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 435                         continue;
 436
 437                 if (d->dev_type == HCI_BREDR &&
 438                     hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
 439                         rp->index[count++] = cpu_to_le16(d->id);
 440                         BT_DBG("Added hci%u", d->id);
 441                 }
 442         }
 443
 444         rp->num_controllers = cpu_to_le16(count);
 445         rp_len = sizeof(*rp) + (2 * count);
 446
 447         read_unlock(&hci_dev_list_lock);
 448
 449         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
 450                                 MGMT_OP_READ_UNCONF_INDEX_LIST, 0, rp, rp_len);
 451
 452         kfree(rp);
 453
 454         return err;
 455 }
 456
 457 static int read_ext_index_list(struct sock *sk, struct hci_dev *hdev,
 458                                void *data, u16 data_len)
 459 {
 460         struct mgmt_rp_read_ext_index_list *rp;
 461         struct hci_dev *d;
 462         size_t rp_len;
 463         u16 count;
 464         int err;
 465
 466         BT_DBG("sock %p", sk);
 467
 468         read_lock(&hci_dev_list_lock);
 469
 470         count = 0;
 471         list_for_each_entry(d, &hci_dev_list, list) {
 472                 if (d->dev_type == HCI_BREDR || d->dev_type == HCI_AMP)
 473                         count++;
 474         }
 475
 476         rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
 477         rp = kmalloc(rp_len, GFP_ATOMIC);
 478         if (!rp) {
 479                 read_unlock(&hci_dev_list_lock);
 480                 return -ENOMEM;
 481         }
 482
 483         count = 0;
 484         list_for_each_entry(d, &hci_dev_list, list) {
 485                 if (hci_dev_test_flag(d, HCI_SETUP) ||
 486                     hci_dev_test_flag(d, HCI_CONFIG) ||
 487                     hci_dev_test_flag(d, HCI_USER_CHANNEL))
 488                         continue;
 489
 490                 /* Devices marked as raw-only are neither configured
 491                  * nor unconfigured controllers.
 492                  */
 493                 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
 494                         continue;
 495
 496                 if (d->dev_type == HCI_BREDR) {
 497                         if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
 498                                 rp->entry[count].type = 0x01;
 499                         else
 500                                 rp->entry[count].type = 0x00;
 501                 } else if (d->dev_type == HCI_AMP) {
 502                         rp->entry[count].type = 0x02;
 503                 } else {
 504                         continue;
 505                 }
 506
 507                 rp->entry[count].bus = d->bus;
 508                 rp->entry[count++].index = cpu_to_le16(d->id);
 509                 BT_DBG("Added hci%u", d->id);
 510         }
 511
 512         rp->num_controllers = cpu_to_le16(count);
 513         rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
 514
 515         read_unlock(&hci_dev_list_lock);
 516
 517         /* If this command is called at least once, then all the
 518          * default index and unconfigured index events are disabled
 519          * and from now on only extended index events are used.
 520          */
 521         hci_sock_set_flag(sk, HCI_MGMT_EXT_INDEX_EVENTS);
 522         hci_sock_clear_flag(sk, HCI_MGMT_INDEX_EVENTS);
 523         hci_sock_clear_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
 524
 525         err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
 526                                 MGMT_OP_READ_EXT_INDEX_LIST, 0, rp, rp_len);
 527
 528         kfree(rp);
 529
 530         return err;
 531 }
 532
 533 static bool is_configured(struct hci_dev *hdev)
 534 {
 535         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
 536             !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
 537                 return false;
 538
 539         if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
 540             !bacmp(&hdev->public_addr, BDADDR_ANY))
 541                 return false;
 542
 543         return true;
 544 }
 545
 546 static __le32 get_missing_options(struct hci_dev *hdev)
 547 {
 548         u32 options = 0;
 549
 550         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
 551             !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
 552                 options |= MGMT_OPTION_EXTERNAL_CONFIG;
 553
 554         if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
 555             !bacmp(&hdev->public_addr, BDADDR_ANY))
 556                 options |= MGMT_OPTION_PUBLIC_ADDRESS;
 557
 558         return cpu_to_le32(options);
 559 }
 560
 561 static int new_options(struct hci_dev *hdev, struct sock *skip)
 562 {
 563         __le32 options = get_missing_options(hdev);
 564
 565         return mgmt_generic_event(MGMT_EV_NEW_CONFIG_OPTIONS, hdev, &options,
 566                                   sizeof(options), skip);
 567 }
 568
 569 static int send_options_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
 570 {
 571         __le32 options = get_missing_options(hdev);
 572
 573         return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &options,
 574                                  sizeof(options));
 575 }
 576
 577 static int read_config_info(struct sock *sk, struct hci_dev *hdev,
 578                             void *data, u16 data_len)
 579 {
 580         struct mgmt_rp_read_config_info rp;
 581         u32 options = 0;
 582
 583         BT_DBG("sock %p %s", sk, hdev->name);
 584
 585         hci_dev_lock(hdev);
 586
 587         memset(&rp, 0, sizeof(rp));
 588         rp.manufacturer = cpu_to_le16(hdev->manufacturer);
 589
 590         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
 591                 options |= MGMT_OPTION_EXTERNAL_CONFIG;
 592
 593         if (hdev->set_bdaddr)
 594                 options |= MGMT_OPTION_PUBLIC_ADDRESS;
 595
 596         rp.supported_options = cpu_to_le32(options);
 597         rp.missing_options = get_missing_options(hdev);
 598
 599         hci_dev_unlock(hdev);
 600
 601         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONFIG_INFO, 0,
 602                                  &rp, sizeof(rp));
 603 }
 604
 605 static u32 get_supported_settings(struct hci_dev *hdev)
 606 {
 607         u32 settings = 0;
 608
 609         settings |= MGMT_SETTING_POWERED;
 610         settings |= MGMT_SETTING_BONDABLE;
 611         settings |= MGMT_SETTING_DEBUG_KEYS;
 612         settings |= MGMT_SETTING_CONNECTABLE;
 613         settings |= MGMT_SETTING_DISCOVERABLE;
 614
 615         if (lmp_bredr_capable(hdev)) {
 616                 if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
 617                         settings |= MGMT_SETTING_FAST_CONNECTABLE;
 618                 settings |= MGMT_SETTING_BREDR;
 619                 settings |= MGMT_SETTING_LINK_SECURITY;
 620
 621                 if (lmp_ssp_capable(hdev)) {
 622                         settings |= MGMT_SETTING_SSP;
 623                         settings |= MGMT_SETTING_HS;
 624                 }
 625
 626                 if (lmp_sc_capable(hdev))
 627                         settings |= MGMT_SETTING_SECURE_CONN;
 628         }
 629
 630         if (lmp_le_capable(hdev)) {
 631                 settings |= MGMT_SETTING_LE;
 632                 settings |= MGMT_SETTING_ADVERTISING;
 633                 settings |= MGMT_SETTING_SECURE_CONN;
 634                 settings |= MGMT_SETTING_PRIVACY;
 635                 settings |= MGMT_SETTING_STATIC_ADDRESS;
 636         }
 637
 638         if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
 639             hdev->set_bdaddr)
 640                 settings |= MGMT_SETTING_CONFIGURATION;
 641
 642         return settings;
 643 }
 644
 645 static u32 get_current_settings(struct hci_dev *hdev)
 646 {
 647         u32 settings = 0;
 648
 649         if (hdev_is_powered(hdev))
 650                 settings |= MGMT_SETTING_POWERED;
 651
 652         if (hci_dev_test_flag(hdev, HCI_CONNECTABLE))
 653                 settings |= MGMT_SETTING_CONNECTABLE;
 654
 655         if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
 656                 settings |= MGMT_SETTING_FAST_CONNECTABLE;
 657
 658         if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
 659                 settings |= MGMT_SETTING_DISCOVERABLE;
 660
 661         if (hci_dev_test_flag(hdev, HCI_BONDABLE))
 662                 settings |= MGMT_SETTING_BONDABLE;
 663
 664         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
 665                 settings |= MGMT_SETTING_BREDR;
 666
 667         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
 668                 settings |= MGMT_SETTING_LE;
 669
 670         if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY))
 671                 settings |= MGMT_SETTING_LINK_SECURITY;
 672
 673         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
 674                 settings |= MGMT_SETTING_SSP;
 675
 676         if (hci_dev_test_flag(hdev, HCI_HS_ENABLED))
 677                 settings |= MGMT_SETTING_HS;
 678
 679         if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
 680                 settings |= MGMT_SETTING_ADVERTISING;
 681
 682         if (hci_dev_test_flag(hdev, HCI_SC_ENABLED))
 683                 settings |= MGMT_SETTING_SECURE_CONN;
 684
 685         if (hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS))
 686                 settings |= MGMT_SETTING_DEBUG_KEYS;
 687
 688         if (hci_dev_test_flag(hdev, HCI_PRIVACY))
 689                 settings |= MGMT_SETTING_PRIVACY;
 690
 691         /* The current setting for static address has two purposes. The
 692          * first is to indicate if the static address will be used and
 693          * the second is to indicate if it is actually set.
 694          *
 695          * This means if the static address is not configured, this flag
 696          * will never be set. If the address is configured, then if the
 697          * address is actually used decides if the flag is set or not.
 698          *
 699          * For single mode LE only controllers and dual-mode controllers
 700          * with BR/EDR disabled, the existence of the static address will
 701          * be evaluated.
 702          */
 703         if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
 704             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
 705             !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
 706                 if (bacmp(&hdev->static_addr, BDADDR_ANY))
 707                         settings |= MGMT_SETTING_STATIC_ADDRESS;
 708         }
 709
 710         return settings;
 711 }
 712
 713 #define PNP_INFO_SVCLASS_ID             0x1200
 714
 715 static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 716 {
 717         u8 *ptr = data, *uuids_start = NULL;
 718         struct bt_uuid *uuid;
 719
 720         if (len < 4)
 721                 return ptr;
 722
 723         list_for_each_entry(uuid, &hdev->uuids, list) {
 724                 u16 uuid16;
 725
 726                 if (uuid->size != 16)
 727                         continue;
 728
 729                 uuid16 = get_unaligned_le16(&uuid->uuid[12]);
 730                 if (uuid16 < 0x1100)
 731                         continue;
 732
 733                 if (uuid16 == PNP_INFO_SVCLASS_ID)
 734                         continue;
 735
 736                 if (!uuids_start) {
 737                         uuids_start = ptr;
 738                         uuids_start[0] = 1;
 739                         uuids_start[1] = EIR_UUID16_ALL;
 740                         ptr += 2;
 741                 }
 742
 743                 /* Stop if not enough space to put next UUID */
 744                 if ((ptr - data) + sizeof(u16) > len) {
 745                         uuids_start[1] = EIR_UUID16_SOME;
 746                         break;
 747                 }
 748
 749                 *ptr++ = (uuid16 & 0x00ff);
 750                 *ptr++ = (uuid16 & 0xff00) >> 8;
 751                 uuids_start[0] += sizeof(uuid16);
 752         }
 753
 754         return ptr;
 755 }
 756
 757 static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 758 {
 759         u8 *ptr = data, *uuids_start = NULL;
 760         struct bt_uuid *uuid;
 761
 762         if (len < 6)
 763                 return ptr;
 764
 765         list_for_each_entry(uuid, &hdev->uuids, list) {
 766                 if (uuid->size != 32)
 767                         continue;
 768
 769                 if (!uuids_start) {
 770                         uuids_start = ptr;
 771                         uuids_start[0] = 1;
 772                         uuids_start[1] = EIR_UUID32_ALL;
 773                         ptr += 2;
 774                 }
 775
 776                 /* Stop if not enough space to put next UUID */
 777                 if ((ptr - data) + sizeof(u32) > len) {
 778                         uuids_start[1] = EIR_UUID32_SOME;
 779                         break;
 780                 }
 781
 782                 memcpy(ptr, &uuid->uuid[12], sizeof(u32));
 783                 ptr += sizeof(u32);
 784                 uuids_start[0] += sizeof(u32);
 785         }
 786
 787         return ptr;
 788 }
 789
 790 static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 791 {
 792         u8 *ptr = data, *uuids_start = NULL;
 793         struct bt_uuid *uuid;
 794
 795         if (len < 18)
 796                 return ptr;
 797
 798         list_for_each_entry(uuid, &hdev->uuids, list) {
 799                 if (uuid->size != 128)
 800                         continue;
 801
 802                 if (!uuids_start) {
 803                         uuids_start = ptr;
 804                         uuids_start[0] = 1;
 805                         uuids_start[1] = EIR_UUID128_ALL;
 806                         ptr += 2;
 807                 }
 808
 809                 /* Stop if not enough space to put next UUID */
 810                 if ((ptr - data) + 16 > len) {
 811                         uuids_start[1] = EIR_UUID128_SOME;
 812                         break;
 813                 }
 814
 815                 memcpy(ptr, uuid->uuid, 16);
 816                 ptr += 16;
 817                 uuids_start[0] += 16;
 818         }
 819
 820         return ptr;
 821 }
 822
 823 static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
 824 {
 825         return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
 826 }
 827
 828 static struct mgmt_pending_cmd *pending_find_data(u16 opcode,
 829                                                   struct hci_dev *hdev,
 830                                                   const void *data)
 831 {
 832         return mgmt_pending_find_data(HCI_CHANNEL_CONTROL, opcode, hdev, data);
 833 }
 834
 835 static u8 get_current_adv_instance(struct hci_dev *hdev)
 836 {
 837         /* The "Set Advertising" setting supersedes the "Add Advertising"
 838          * setting. Here we set the advertising data based on which
 839          * setting was set. When neither apply, default to the global settings,
 840          * represented by instance "0".
 841          */
 842         if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
 843             !hci_dev_test_flag(hdev, HCI_ADVERTISING))
 844                 return hdev->cur_adv_instance;
 845
 846         return 0x00;
 847 }
 848
 849 static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
 850 {
 851         u8 ad_len = 0;
 852         size_t name_len;
 853
 854         name_len = strlen(hdev->dev_name);
 855         if (name_len > 0) {
 856                 size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
 857
 858                 if (name_len > max_len) {
 859                         name_len = max_len;
 860                         ptr[1] = EIR_NAME_SHORT;
 861                 } else
 862                         ptr[1] = EIR_NAME_COMPLETE;
 863
 864                 ptr[0] = name_len + 1;
 865
 866                 memcpy(ptr + 2, hdev->dev_name, name_len);
 867
 868                 ad_len += (name_len + 2);
 869                 ptr += (name_len + 2);
 870         }
 871
 872         return ad_len;
 873 }
 874
 875 static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
 876                                         u8 *ptr)
 877 {
 878         struct adv_info *adv_instance;
 879
 880         adv_instance = hci_find_adv_instance(hdev, instance);
 881         if (!adv_instance)
 882                 return 0;
 883
 884         /* TODO: Set the appropriate entries based on advertising instance flags
 885          * here once flags other than 0 are supported.
 886          */
 887         memcpy(ptr, adv_instance->scan_rsp_data,
 888                adv_instance->scan_rsp_len);
 889
 890         return adv_instance->scan_rsp_len;
 891 }
 892
 893 static void update_inst_scan_rsp_data(struct hci_request *req, u8 instance)
 894 {
 895         struct hci_dev *hdev = req->hdev;
 896         struct hci_cp_le_set_scan_rsp_data cp;
 897         u8 len;
 898
 899         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
 900                 return;
 901
 902         memset(&cp, 0, sizeof(cp));
 903
 904         if (instance)
 905                 len = create_instance_scan_rsp_data(hdev, instance, cp.data);
 906         else
 907                 len = create_default_scan_rsp_data(hdev, cp.data);
 908
 909         if (hdev->scan_rsp_data_len == len &&
 910             !memcmp(cp.data, hdev->scan_rsp_data, len))
 911                 return;
 912
 913         memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
 914         hdev->scan_rsp_data_len = len;
 915
 916         cp.length = len;
 917
 918         hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
 919 }
 920
 921 static void update_scan_rsp_data(struct hci_request *req)
 922 {
 923         update_inst_scan_rsp_data(req, get_current_adv_instance(req->hdev));
 924 }
 925
 926 static u8 get_adv_discov_flags(struct hci_dev *hdev)
 927 {
 928         struct mgmt_pending_cmd *cmd;
 929
 930         /* If there's a pending mgmt command the flags will not yet have
 931          * their final values, so check for this first.
 932          */
 933         cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
 934         if (cmd) {
 935                 struct mgmt_mode *cp = cmd->param;
 936                 if (cp->val == 0x01)
 937                         return LE_AD_GENERAL;
 938                 else if (cp->val == 0x02)
 939                         return LE_AD_LIMITED;
 940         } else {
 941                 if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
 942                         return LE_AD_LIMITED;
 943                 else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
 944                         return LE_AD_GENERAL;
 945         }
 946
 947         return 0;
 948 }
 949
 950 static bool get_connectable(struct hci_dev *hdev)
 951 {
 952         struct mgmt_pending_cmd *cmd;
 953
 954         /* If there's a pending mgmt command the flag will not yet have
 955          * it's final value, so check for this first.
 956          */
 957         cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
 958         if (cmd) {
 959                 struct mgmt_mode *cp = cmd->param;
 960
 961                 return cp->val;
 962         }
 963
 964         return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
 965 }
 966
 967 static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
 968 {
 969         u32 flags;
 970         struct adv_info *adv_instance;
 971
 972         if (instance == 0x00) {
 973                 /* Instance 0 always manages the "Tx Power" and "Flags"
 974                  * fields
 975                  */
 976                 flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
 977
 978                 /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
 979                  * corresponds to the "connectable" instance flag.
 980                  */
 981                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
 982                         flags |= MGMT_ADV_FLAG_CONNECTABLE;
 983
 984                 return flags;
 985         }
 986
 987         adv_instance = hci_find_adv_instance(hdev, instance);
 988
 989         /* Return 0 when we got an invalid instance identifier. */
 990         if (!adv_instance)
 991                 return 0;
 992
 993         return adv_instance->flags;
 994 }
 995
 996 static u8 get_cur_adv_instance_scan_rsp_len(struct hci_dev *hdev)
 997 {
 998         u8 instance = get_current_adv_instance(hdev);
 999         struct adv_info *adv_instance;
1000
1001         /* Ignore instance 0 */
1002         if (instance == 0x00)
1003                 return 0;
1004
1005         adv_instance = hci_find_adv_instance(hdev, instance);
1006         if (!adv_instance)
1007                 return 0;
1008
1009         /* TODO: Take into account the "appearance" and "local-name" flags here.
1010          * These are currently being ignored as they are not supported.
1011          */
1012         return adv_instance->scan_rsp_len;
1013 }
1014
1015 static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
1016 {
1017         struct adv_info *adv_instance = NULL;
1018         u8 ad_len = 0, flags = 0;
1019         u32 instance_flags;
1020
1021         /* Return 0 when the current instance identifier is invalid. */
1022         if (instance) {
1023                 adv_instance = hci_find_adv_instance(hdev, instance);
1024                 if (!adv_instance)
1025                         return 0;
1026         }
1027
1028         instance_flags = get_adv_instance_flags(hdev, instance);
1029
1030         /* The Add Advertising command allows userspace to set both the general
1031          * and limited discoverable flags.
1032          */
1033         if (instance_flags & MGMT_ADV_FLAG_DISCOV)
1034                 flags |= LE_AD_GENERAL;
1035
1036         if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV)
1037                 flags |= LE_AD_LIMITED;
1038
1039         if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) {
1040                 /* If a discovery flag wasn't provided, simply use the global
1041                  * settings.
1042                  */
1043                 if (!flags)
1044                         flags |= get_adv_discov_flags(hdev);
1045
1046                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1047                         flags |= LE_AD_NO_BREDR;
1048
1049                 /* If flags would still be empty, then there is no need to
1050                  * include the "Flags" AD field".
1051                  */
1052                 if (flags) {
1053                         ptr[0] = 0x02;
1054                         ptr[1] = EIR_FLAGS;
1055                         ptr[2] = flags;
1056
1057                         ad_len += 3;
1058                         ptr += 3;
1059                 }
1060         }
1061
1062         if (adv_instance) {
1063                 memcpy(ptr, adv_instance->adv_data,
1064                        adv_instance->adv_data_len);
1065                 ad_len += adv_instance->adv_data_len;
1066                 ptr += adv_instance->adv_data_len;
1067         }
1068
1069         /* Provide Tx Power only if we can provide a valid value for it */
1070         if (hdev->adv_tx_power != HCI_TX_POWER_INVALID &&
1071             (instance_flags & MGMT_ADV_FLAG_TX_POWER)) {
1072                 ptr[0] = 0x02;
1073                 ptr[1] = EIR_TX_POWER;
1074                 ptr[2] = (u8)hdev->adv_tx_power;
1075
1076                 ad_len += 3;
1077                 ptr += 3;
1078         }
1079
1080         return ad_len;
1081 }
1082
1083 static void update_inst_adv_data(struct hci_request *req, u8 instance)
1084 {
1085         struct hci_dev *hdev = req->hdev;
1086         struct hci_cp_le_set_adv_data cp;
1087         u8 len;
1088
1089         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1090                 return;
1091
1092         memset(&cp, 0, sizeof(cp));
1093
1094         len = create_instance_adv_data(hdev, instance, cp.data);
1095
1096         /* There's nothing to do if the data hasn't changed */
1097         if (hdev->adv_data_len == len &&
1098             memcmp(cp.data, hdev->adv_data, len) == 0)
1099                 return;
1100
1101         memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
1102         hdev->adv_data_len = len;
1103
1104         cp.length = len;
1105
1106         hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
1107 }
1108
1109 static void update_adv_data(struct hci_request *req)
1110 {
1111         update_inst_adv_data(req, get_current_adv_instance(req->hdev));
1112 }
1113
1114 int mgmt_update_adv_data(struct hci_dev *hdev)
1115 {
1116         struct hci_request req;
1117
1118         hci_req_init(&req, hdev);
1119         update_adv_data(&req);
1120
1121         return hci_req_run(&req, NULL);
1122 }
1123
1124 static void create_eir(struct hci_dev *hdev, u8 *data)
1125 {
1126         u8 *ptr = data;
1127         size_t name_len;
1128
1129         name_len = strlen(hdev->dev_name);
1130
1131         if (name_len > 0) {
1132                 /* EIR Data type */
1133                 if (name_len > 48) {
1134                         name_len = 48;
1135                         ptr[1] = EIR_NAME_SHORT;
1136                 } else
1137                         ptr[1] = EIR_NAME_COMPLETE;
1138
1139                 /* EIR Data length */
1140                 ptr[0] = name_len + 1;
1141
1142                 memcpy(ptr + 2, hdev->dev_name, name_len);
1143
1144                 ptr += (name_len + 2);
1145         }
1146
1147         if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
1148                 ptr[0] = 2;
1149                 ptr[1] = EIR_TX_POWER;
1150                 ptr[2] = (u8) hdev->inq_tx_power;
1151
1152                 ptr += 3;
1153         }
1154
1155         if (hdev->devid_source > 0) {
1156                 ptr[0] = 9;
1157                 ptr[1] = EIR_DEVICE_ID;
1158
1159                 put_unaligned_le16(hdev->devid_source, ptr + 2);
1160                 put_unaligned_le16(hdev->devid_vendor, ptr + 4);
1161                 put_unaligned_le16(hdev->devid_product, ptr + 6);
1162                 put_unaligned_le16(hdev->devid_version, ptr + 8);
1163
1164                 ptr += 10;
1165         }
1166
1167         ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1168         ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1169         ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1170 }
1171
1172 static void update_eir(struct hci_request *req)
1173 {
1174         struct hci_dev *hdev = req->hdev;
1175         struct hci_cp_write_eir cp;
1176
1177         if (!hdev_is_powered(hdev))
1178                 return;
1179
1180         if (!lmp_ext_inq_capable(hdev))
1181                 return;
1182
1183         if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
1184                 return;
1185
1186         if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1187                 return;
1188
1189         memset(&cp, 0, sizeof(cp));
1190
1191         create_eir(hdev, cp.data);
1192
1193         if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
1194                 return;
1195
1196         memcpy(hdev->eir, cp.data, sizeof(cp.data));
1197
1198         hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
1199 }
1200
1201 static u8 get_service_classes(struct hci_dev *hdev)
1202 {
1203         struct bt_uuid *uuid;
1204         u8 val = 0;
1205
1206         list_for_each_entry(uuid, &hdev->uuids, list)
1207                 val |= uuid->svc_hint;
1208
1209         return val;
1210 }
1211
1212 static void update_class(struct hci_request *req)
1213 {
1214         struct hci_dev *hdev = req->hdev;
1215         u8 cod[3];
1216
1217         BT_DBG("%s", hdev->name);
1218
1219         if (!hdev_is_powered(hdev))
1220                 return;
1221
1222         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1223                 return;
1224
1225         if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1226                 return;
1227
1228         cod[0] = hdev->minor_class;
1229         cod[1] = hdev->major_class;
1230         cod[2] = get_service_classes(hdev);
1231
1232         if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
1233                 cod[1] |= 0x20;
1234
1235         if (memcmp(cod, hdev->dev_class, 3) == 0)
1236                 return;
1237
1238         hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
1239 }
1240
1241 static void disable_advertising(struct hci_request *req)
1242 {
1243         u8 enable = 0x00;
1244
1245         hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1246 }
1247
1248 static void enable_advertising(struct hci_request *req)
1249 {
1250         struct hci_dev *hdev = req->hdev;
1251         struct hci_cp_le_set_adv_param cp;
1252         u8 own_addr_type, enable = 0x01;
1253         bool connectable;
1254         u8 instance;
1255         u32 flags;
1256
1257         if (hci_conn_num(hdev, LE_LINK) > 0)
1258                 return;
1259
1260         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1261                 disable_advertising(req);
1262
1263         /* Clear the HCI_LE_ADV bit temporarily so that the
1264          * hci_update_random_address knows that it's safe to go ahead
1265          * and write a new random address. The flag will be set back on
1266          * as soon as the SET_ADV_ENABLE HCI command completes.
1267          */
1268         hci_dev_clear_flag(hdev, HCI_LE_ADV);
1269
1270         instance = get_current_adv_instance(hdev);
1271         flags = get_adv_instance_flags(hdev, instance);
1272
1273         /* If the "connectable" instance flag was not set, then choose between
1274          * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
1275          */
1276         connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
1277                       get_connectable(hdev);
1278
1279         /* Set require_privacy to true only when non-connectable
1280          * advertising is used. In that case it is fine to use a
1281          * non-resolvable private address.
1282          */
1283         if (hci_update_random_address(req, !connectable, &own_addr_type) < 0)
1284                 return;
1285
1286         memset(&cp, 0, sizeof(cp));
1287         cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
1288         cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
1289
1290         if (connectable)
1291                 cp.type = LE_ADV_IND;
1292         else if (get_cur_adv_instance_scan_rsp_len(hdev))
1293                 cp.type = LE_ADV_SCAN_IND;
1294         else
1295                 cp.type = LE_ADV_NONCONN_IND;
1296
1297         cp.own_address_type = own_addr_type;
1298         cp.channel_map = hdev->le_adv_channel_map;
1299
1300         hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
1301
1302         hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1303 }
1304
1305 static void service_cache_off(struct work_struct *work)
1306 {
1307         struct hci_dev *hdev = container_of(work, struct hci_dev,
1308                                             service_cache.work);
1309         struct hci_request req;
1310
1311         if (!hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
1312                 return;
1313
1314         hci_req_init(&req, hdev);
1315
1316         hci_dev_lock(hdev);
1317
1318         update_eir(&req);
1319         update_class(&req);
1320
1321         hci_dev_unlock(hdev);
1322
1323         hci_req_run(&req, NULL);
1324 }
1325
1326 static void rpa_expired(struct work_struct *work)
1327 {
1328         struct hci_dev *hdev = container_of(work, struct hci_dev,
1329                                             rpa_expired.work);
1330         struct hci_request req;
1331
1332         BT_DBG("");
1333
1334         hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
1335
1336         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING))
1337                 return;
1338
1339         /* The generation of a new RPA and programming it into the
1340          * controller happens in the enable_advertising() function.
1341          */
1342         hci_req_init(&req, hdev);
1343         enable_advertising(&req);
1344         hci_req_run(&req, NULL);
1345 }
1346
1347 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
1348 {
1349         if (hci_dev_test_and_set_flag(hdev, HCI_MGMT))
1350                 return;
1351
1352         INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
1353         INIT_DELAYED_WORK(&hdev->rpa_expired, rpa_expired);
1354
1355         /* Non-mgmt controlled devices get this bit set
1356          * implicitly so that pairing works for them, however
1357          * for mgmt we require user-space to explicitly enable
1358          * it
1359          */
1360         hci_dev_clear_flag(hdev, HCI_BONDABLE);
1361 }
1362
1363 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
1364                                 void *data, u16 data_len)
1365 {
1366         struct mgmt_rp_read_info rp;
1367
1368         BT_DBG("sock %p %s", sk, hdev->name);
1369
1370         hci_dev_lock(hdev);
1371
1372         memset(&rp, 0, sizeof(rp));
1373
1374         bacpy(&rp.bdaddr, &hdev->bdaddr);
1375
1376         rp.version = hdev->hci_ver;
1377         rp.manufacturer = cpu_to_le16(hdev->manufacturer);
1378
1379         rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
1380         rp.current_settings = cpu_to_le32(get_current_settings(hdev));
1381
1382         memcpy(rp.dev_class, hdev->dev_class, 3);
1383
1384         memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
1385         memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
1386
1387         hci_dev_unlock(hdev);
1388
1389         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
1390                                  sizeof(rp));
1391 }
1392
1393 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
1394 {
1395         __le32 settings = cpu_to_le32(get_current_settings(hdev));
1396
1397         return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &settings,
1398                                  sizeof(settings));
1399 }
1400
1401 static void clean_up_hci_complete(struct hci_dev *hdev, u8 status, u16 opcode)
1402 {
1403         BT_DBG("%s status 0x%02x", hdev->name, status);
1404
1405         if (hci_conn_count(hdev) == 0) {
1406                 cancel_delayed_work(&hdev->power_off);
1407                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
1408         }
1409 }
1410
1411 static bool hci_stop_discovery(struct hci_request *req)
1412 {
1413         struct hci_dev *hdev = req->hdev;
1414         struct hci_cp_remote_name_req_cancel cp;
1415         struct inquiry_entry *e;
1416
1417         switch (hdev->discovery.state) {
1418         case DISCOVERY_FINDING:
1419                 if (test_bit(HCI_INQUIRY, &hdev->flags))
1420                         hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
1421
1422                 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1423                         cancel_delayed_work(&hdev->le_scan_disable);
1424                         hci_req_add_le_scan_disable(req);
1425                 }
1426
1427                 return true;
1428
1429         case DISCOVERY_RESOLVING:
1430                 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
1431                                                      NAME_PENDING);
1432                 if (!e)
1433                         break;
1434
1435                 bacpy(&cp.bdaddr, &e->data.bdaddr);
1436                 hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
1437                             &cp);
1438
1439                 return true;
1440
1441         default:
1442                 /* Passive scanning */
1443                 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1444                         hci_req_add_le_scan_disable(req);
1445                         return true;
1446                 }
1447
1448                 break;
1449         }
1450
1451         return false;
1452 }
1453
1454 static void advertising_added(struct sock *sk, struct hci_dev *hdev,
1455                               u8 instance)
1456 {
1457         struct mgmt_ev_advertising_added ev;
1458
1459         ev.instance = instance;
1460
1461         mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
1462 }
1463
1464 static void advertising_removed(struct sock *sk, struct hci_dev *hdev,
1465                                 u8 instance)
1466 {
1467         struct mgmt_ev_advertising_removed ev;
1468
1469         ev.instance = instance;
1470
1471         mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
1472 }
1473
1474 static int schedule_adv_instance(struct hci_request *req, u8 instance,
1475                                  bool force) {
1476         struct hci_dev *hdev = req->hdev;
1477         struct adv_info *adv_instance = NULL;
1478         u16 timeout;
1479
1480         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
1481             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
1482                 return -EPERM;
1483
1484         if (hdev->adv_instance_timeout)
1485                 return -EBUSY;
1486
1487         adv_instance = hci_find_adv_instance(hdev, instance);
1488         if (!adv_instance)
1489                 return -ENOENT;
1490
1491         /* A zero timeout means unlimited advertising. As long as there is
1492          * only one instance, duration should be ignored. We still set a timeout
1493          * in case further instances are being added later on.
1494          *
1495          * If the remaining lifetime of the instance is more than the duration
1496          * then the timeout corresponds to the duration, otherwise it will be
1497          * reduced to the remaining instance lifetime.
1498          */
1499         if (adv_instance->timeout == 0 ||
1500             adv_instance->duration <= adv_instance->remaining_time)
1501                 timeout = adv_instance->duration;
1502         else
1503                 timeout = adv_instance->remaining_time;
1504
1505         /* The remaining time is being reduced unless the instance is being
1506          * advertised without time limit.
1507          */
1508         if (adv_instance->timeout)
1509                 adv_instance->remaining_time =
1510                                 adv_instance->remaining_time - timeout;
1511
1512         hdev->adv_instance_timeout = timeout;
1513         queue_delayed_work(hdev->workqueue,
1514                            &hdev->adv_instance_expire,
1515                            msecs_to_jiffies(timeout * 1000));
1516
1517         /* If we're just re-scheduling the same instance again then do not
1518          * execute any HCI commands. This happens when a single instance is
1519          * being advertised.
1520          */
1521         if (!force && hdev->cur_adv_instance == instance &&
1522             hci_dev_test_flag(hdev, HCI_LE_ADV))
1523                 return 0;
1524
1525         hdev->cur_adv_instance = instance;
1526         update_adv_data(req);
1527         update_scan_rsp_data(req);
1528         enable_advertising(req);
1529
1530         return 0;
1531 }
1532
1533 static void cancel_adv_timeout(struct hci_dev *hdev)
1534 {
1535         if (hdev->adv_instance_timeout) {
1536                 hdev->adv_instance_timeout = 0;
1537                 cancel_delayed_work(&hdev->adv_instance_expire);
1538         }
1539 }
1540
1541 /* For a single instance:
1542  * - force == true: The instance will be removed even when its remaining
1543  *   lifetime is not zero.
1544  * - force == false: the instance will be deactivated but kept stored unless
1545  *   the remaining lifetime is zero.
1546  *
1547  * For instance == 0x00:
1548  * - force == true: All instances will be removed regardless of their timeout
1549  *   setting.
1550  * - force == false: Only instances that have a timeout will be removed.
1551  */
1552 static void clear_adv_instance(struct hci_dev *hdev, struct hci_request *req,
1553                                u8 instance, bool force)
1554 {
1555         struct adv_info *adv_instance, *n, *next_instance = NULL;
1556         int err;
1557         u8 rem_inst;
1558
1559         /* Cancel any timeout concerning the removed instance(s). */
1560         if (!instance || hdev->cur_adv_instance == instance)
1561                 cancel_adv_timeout(hdev);
1562
1563         /* Get the next instance to advertise BEFORE we remove
1564          * the current one. This can be the same instance again
1565          * if there is only one instance.
1566          */
1567         if (instance && hdev->cur_adv_instance == instance)
1568                 next_instance = hci_get_next_instance(hdev, instance);
1569
1570         if (instance == 0x00) {
1571                 list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances,
1572                                          list) {
1573                         if (!(force || adv_instance->timeout))
1574                                 continue;
1575
1576                         rem_inst = adv_instance->instance;
1577                         err = hci_remove_adv_instance(hdev, rem_inst);
1578                         if (!err)
1579                                 advertising_removed(NULL, hdev, rem_inst);
1580                 }
1581                 hdev->cur_adv_instance = 0x00;
1582         } else {
1583                 adv_instance = hci_find_adv_instance(hdev, instance);
1584
1585                 if (force || (adv_instance && adv_instance->timeout &&
1586                               !adv_instance->remaining_time)) {
1587                         /* Don't advertise a removed instance. */
1588                         if (next_instance &&
1589                             next_instance->instance == instance)
1590                                 next_instance = NULL;
1591
1592                         err = hci_remove_adv_instance(hdev, instance);
1593                         if (!err)
1594                                 advertising_removed(NULL, hdev, instance);
1595                 }
1596         }
1597
1598         if (list_empty(&hdev->adv_instances)) {
1599                 hdev->cur_adv_instance = 0x00;
1600                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
1601         }
1602
1603         if (!req || !hdev_is_powered(hdev) ||
1604             hci_dev_test_flag(hdev, HCI_ADVERTISING))
1605                 return;
1606
1607         if (next_instance)
1608                 schedule_adv_instance(req, next_instance->instance, false);
1609 }
1610
1611 static int clean_up_hci_state(struct hci_dev *hdev)
1612 {
1613         struct hci_request req;
1614         struct hci_conn *conn;
1615         bool discov_stopped;
1616         int err;
1617
1618         hci_req_init(&req, hdev);
1619
1620         if (test_bit(HCI_ISCAN, &hdev->flags) ||
1621             test_bit(HCI_PSCAN, &hdev->flags)) {
1622                 u8 scan = 0x00;
1623                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
1624         }
1625
1626         clear_adv_instance(hdev, NULL, 0x00, false);
1627
1628         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1629                 disable_advertising(&req);
1630
1631         discov_stopped = hci_stop_discovery(&req);
1632
1633         list_for_each_entry(conn, &hdev->conn_hash.list, list) {
1634                 struct hci_cp_disconnect dc;
1635                 struct hci_cp_reject_conn_req rej;
1636
1637                 switch (conn->state) {
1638                 case BT_CONNECTED:
1639                 case BT_CONFIG:
1640                         dc.handle = cpu_to_le16(conn->handle);
1641                         dc.reason = 0x15; /* Terminated due to Power Off */
1642                         hci_req_add(&req, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1643                         break;
1644                 case BT_CONNECT:
1645                         if (conn->type == LE_LINK)
1646                                 hci_req_add(&req, HCI_OP_LE_CREATE_CONN_CANCEL,
1647                                             0, NULL);
1648                         else if (conn->type == ACL_LINK)
1649                                 hci_req_add(&req, HCI_OP_CREATE_CONN_CANCEL,
1650                                             6, &conn->dst);
1651                         break;
1652                 case BT_CONNECT2:
1653                         bacpy(&rej.bdaddr, &conn->dst);
1654                         rej.reason = 0x15; /* Terminated due to Power Off */
1655                         if (conn->type == ACL_LINK)
1656                                 hci_req_add(&req, HCI_OP_REJECT_CONN_REQ,
1657                                             sizeof(rej), &rej);
1658                         else if (conn->type == SCO_LINK)
1659                                 hci_req_add(&req, HCI_OP_REJECT_SYNC_CONN_REQ,
1660                                             sizeof(rej), &rej);
1661                         break;
1662                 }
1663         }
1664
1665         err = hci_req_run(&req, clean_up_hci_complete);
1666         if (!err && discov_stopped)
1667                 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
1668
1669         return err;
1670 }
1671
1672 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
1673                        u16 len)
1674 {
1675         struct mgmt_mode *cp = data;
1676         struct mgmt_pending_cmd *cmd;
1677         int err;
1678
1679         BT_DBG("request for %s", hdev->name);
1680
1681         if (cp->val != 0x00 && cp->val != 0x01)
1682                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1683                                        MGMT_STATUS_INVALID_PARAMS);
1684
1685         hci_dev_lock(hdev);
1686
1687         if (pending_find(MGMT_OP_SET_POWERED, hdev)) {
1688                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1689                                       MGMT_STATUS_BUSY);
1690                 goto failed;
1691         }
1692
1693         if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) {
1694                 cancel_delayed_work(&hdev->power_off);
1695
1696                 if (cp->val) {
1697                         mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev,
1698                                          data, len);
1699                         err = mgmt_powered(hdev, 1);
1700                         goto failed;
1701                 }
1702         }
1703
1704         if (!!cp->val == hdev_is_powered(hdev)) {
1705                 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
1706                 goto failed;
1707         }
1708
1709         cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
1710         if (!cmd) {
1711                 err = -ENOMEM;
1712                 goto failed;
1713         }
1714
1715         if (cp->val) {
1716                 queue_work(hdev->req_workqueue, &hdev->power_on);
1717                 err = 0;
1718         } else {
1719                 /* Disconnect connections, stop scans, etc */
1720                 err = clean_up_hci_state(hdev);
1721                 if (!err)
1722                         queue_delayed_work(hdev->req_workqueue, &hdev->power_off,
1723                                            HCI_POWER_OFF_TIMEOUT);
1724
1725                 /* ENODATA means there were no HCI commands queued */
1726                 if (err == -ENODATA) {
1727                         cancel_delayed_work(&hdev->power_off);
1728                         queue_work(hdev->req_workqueue, &hdev->power_off.work);
1729                         err = 0;
1730                 }
1731         }
1732
1733 failed:
1734         hci_dev_unlock(hdev);
1735         return err;
1736 }
1737
1738 static int new_settings(struct hci_dev *hdev, struct sock *skip)
1739 {
1740         __le32 ev = cpu_to_le32(get_current_settings(hdev));
1741
1742         return mgmt_generic_event(MGMT_EV_NEW_SETTINGS, hdev, &ev,
1743                                   sizeof(ev), skip);
1744 }
1745
1746 int mgmt_new_settings(struct hci_dev *hdev)
1747 {
1748         return new_settings(hdev, NULL);
1749 }
1750
1751 struct cmd_lookup {
1752         struct sock *sk;
1753         struct hci_dev *hdev;
1754         u8 mgmt_status;
1755 };
1756
1757 static void settings_rsp(struct mgmt_pending_cmd *cmd, void *data)
1758 {
1759         struct cmd_lookup *match = data;
1760
1761         send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
1762
1763         list_del(&cmd->list);
1764
1765         if (match->sk == NULL) {
1766                 match->sk = cmd->sk;
1767                 sock_hold(match->sk);
1768         }
1769
1770         mgmt_pending_free(cmd);
1771 }
1772
1773 static void cmd_status_rsp(struct mgmt_pending_cmd *cmd, void *data)
1774 {
1775         u8 *status = data;
1776
1777         mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
1778         mgmt_pending_remove(cmd);
1779 }
1780
1781 static void cmd_complete_rsp(struct mgmt_pending_cmd *cmd, void *data)
1782 {
1783         if (cmd->cmd_complete) {
1784                 u8 *status = data;
1785
1786                 cmd->cmd_complete(cmd, *status);
1787                 mgmt_pending_remove(cmd);
1788
1789                 return;
1790         }
1791
1792         cmd_status_rsp(cmd, data);
1793 }
1794
1795 static int generic_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1796 {
1797         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1798                                  cmd->param, cmd->param_len);
1799 }
1800
1801 static int addr_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1802 {
1803         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1804                                  cmd->param, sizeof(struct mgmt_addr_info));
1805 }
1806
1807 static u8 mgmt_bredr_support(struct hci_dev *hdev)
1808 {
1809         if (!lmp_bredr_capable(hdev))
1810                 return MGMT_STATUS_NOT_SUPPORTED;
1811         else if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1812                 return MGMT_STATUS_REJECTED;
1813         else
1814                 return MGMT_STATUS_SUCCESS;
1815 }
1816
1817 static u8 mgmt_le_support(struct hci_dev *hdev)
1818 {
1819         if (!lmp_le_capable(hdev))
1820                 return MGMT_STATUS_NOT_SUPPORTED;
1821         else if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1822                 return MGMT_STATUS_REJECTED;
1823         else
1824                 return MGMT_STATUS_SUCCESS;
1825 }
1826
1827 static void set_discoverable_complete(struct hci_dev *hdev, u8 status,
1828                                       u16 opcode)
1829 {
1830         struct mgmt_pending_cmd *cmd;
1831         struct mgmt_mode *cp;
1832         struct hci_request req;
1833         bool changed;
1834
1835         BT_DBG("status 0x%02x", status);
1836
1837         hci_dev_lock(hdev);
1838
1839         cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
1840         if (!cmd)
1841                 goto unlock;
1842
1843         if (status) {
1844                 u8 mgmt_err = mgmt_status(status);
1845                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
1846                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1847                 goto remove_cmd;
1848         }
1849
1850         cp = cmd->param;
1851         if (cp->val) {
1852                 changed = !hci_dev_test_and_set_flag(hdev, HCI_DISCOVERABLE);
1853
1854                 if (hdev->discov_timeout > 0) {
1855                         int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1856                         queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1857                                            to);
1858                 }
1859         } else {
1860                 changed = hci_dev_test_and_clear_flag(hdev, HCI_DISCOVERABLE);
1861         }
1862
1863         send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1864
1865         if (changed)
1866                 new_settings(hdev, cmd->sk);
1867
1868         /* When the discoverable mode gets changed, make sure
1869          * that class of device has the limited discoverable
1870          * bit correctly set. Also update page scan based on whitelist
1871          * entries.
1872          */
1873         hci_req_init(&req, hdev);
1874         __hci_update_page_scan(&req);
1875         update_class(&req);
1876         hci_req_run(&req, NULL);
1877
1878 remove_cmd:
1879         mgmt_pending_remove(cmd);
1880
1881 unlock:
1882         hci_dev_unlock(hdev);
1883 }
1884
1885 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
1886                             u16 len)
1887 {
1888         struct mgmt_cp_set_discoverable *cp = data;
1889         struct mgmt_pending_cmd *cmd;
1890         struct hci_request req;
1891         u16 timeout;
1892         u8 scan;
1893         int err;
1894
1895         BT_DBG("request for %s", hdev->name);
1896
1897         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
1898             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1899                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1900                                        MGMT_STATUS_REJECTED);
1901
1902         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
1903                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1904                                        MGMT_STATUS_INVALID_PARAMS);
1905
1906         timeout = __le16_to_cpu(cp->timeout);
1907
1908         /* Disabling discoverable requires that no timeout is set,
1909          * and enabling limited discoverable requires a timeout.
1910          */
1911         if ((cp->val == 0x00 && timeout > 0) ||
1912             (cp->val == 0x02 && timeout == 0))
1913                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1914                                        MGMT_STATUS_INVALID_PARAMS);
1915
1916         hci_dev_lock(hdev);
1917
1918         if (!hdev_is_powered(hdev) && timeout > 0) {
1919                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1920                                       MGMT_STATUS_NOT_POWERED);
1921                 goto failed;
1922         }
1923
1924         if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1925             pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1926                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1927                                       MGMT_STATUS_BUSY);
1928                 goto failed;
1929         }
1930
1931         if (!hci_dev_test_flag(hdev, HCI_CONNECTABLE)) {
1932                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1933                                       MGMT_STATUS_REJECTED);
1934                 goto failed;
1935         }
1936
1937         if (!hdev_is_powered(hdev)) {
1938                 bool changed = false;
1939
1940                 /* Setting limited discoverable when powered off is
1941                  * not a valid operation since it requires a timeout
1942                  * and so no need to check HCI_LIMITED_DISCOVERABLE.
1943                  */
1944                 if (!!cp->val != hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) {
1945                         hci_dev_change_flag(hdev, HCI_DISCOVERABLE);
1946                         changed = true;
1947                 }
1948
1949                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1950                 if (err < 0)
1951                         goto failed;
1952
1953                 if (changed)
1954                         err = new_settings(hdev, sk);
1955
1956                 goto failed;
1957         }
1958
1959         /* If the current mode is the same, then just update the timeout
1960          * value with the new value. And if only the timeout gets updated,
1961          * then no need for any HCI transactions.
1962          */
1963         if (!!cp->val == hci_dev_test_flag(hdev, HCI_DISCOVERABLE) &&
1964             (cp->val == 0x02) == hci_dev_test_flag(hdev,
1965                                                    HCI_LIMITED_DISCOVERABLE)) {
1966                 cancel_delayed_work(&hdev->discov_off);
1967                 hdev->discov_timeout = timeout;
1968
1969                 if (cp->val && hdev->discov_timeout > 0) {
1970                         int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1971                         queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1972                                            to);
1973                 }
1974
1975                 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1976                 goto failed;
1977         }
1978
1979         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
1980         if (!cmd) {
1981                 err = -ENOMEM;
1982                 goto failed;
1983         }
1984
1985         /* Cancel any potential discoverable timeout that might be
1986          * still active and store new timeout value. The arming of
1987          * the timeout happens in the complete handler.
1988          */
1989         cancel_delayed_work(&hdev->discov_off);
1990         hdev->discov_timeout = timeout;
1991
1992         /* Limited discoverable mode */
1993         if (cp->val == 0x02)
1994                 hci_dev_set_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1995         else
1996                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1997
1998         hci_req_init(&req, hdev);
1999
2000         /* The procedure for LE-only controllers is much simpler - just
2001          * update the advertising data.
2002          */
2003         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2004                 goto update_ad;
2005
2006         scan = SCAN_PAGE;
2007
2008         if (cp->val) {
2009                 struct hci_cp_write_current_iac_lap hci_cp;
2010
2011                 if (cp->val == 0x02) {
2012                         /* Limited discoverable mode */
2013                         hci_cp.num_iac = min_t(u8, hdev->num_iac, 2);
2014                         hci_cp.iac_lap[0] = 0x00;       /* LIAC */
2015                         hci_cp.iac_lap[1] = 0x8b;
2016                         hci_cp.iac_lap[2] = 0x9e;
2017                         hci_cp.iac_lap[3] = 0x33;       /* GIAC */
2018                         hci_cp.iac_lap[4] = 0x8b;
2019                         hci_cp.iac_lap[5] = 0x9e;
2020                 } else {
2021                         /* General discoverable mode */
2022                         hci_cp.num_iac = 1;
2023                         hci_cp.iac_lap[0] = 0x33;       /* GIAC */
2024                         hci_cp.iac_lap[1] = 0x8b;
2025                         hci_cp.iac_lap[2] = 0x9e;
2026                 }
2027
2028                 hci_req_add(&req, HCI_OP_WRITE_CURRENT_IAC_LAP,
2029                             (hci_cp.num_iac * 3) + 1, &hci_cp);
2030
2031                 scan |= SCAN_INQUIRY;
2032         } else {
2033                 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2034         }
2035
2036         hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
2037
2038 update_ad:
2039         update_adv_data(&req);
2040
2041         err = hci_req_run(&req, set_discoverable_complete);
2042         if (err < 0)
2043                 mgmt_pending_remove(cmd);
2044
2045 failed:
2046         hci_dev_unlock(hdev);
2047         return err;
2048 }
2049
2050 static void write_fast_connectable(struct hci_request *req, bool enable)
2051 {
2052         struct hci_dev *hdev = req->hdev;
2053         struct hci_cp_write_page_scan_activity acp;
2054         u8 type;
2055
2056         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2057                 return;
2058
2059         if (hdev->hci_ver < BLUETOOTH_VER_1_2)
2060                 return;
2061
2062         if (enable) {
2063                 type = PAGE_SCAN_TYPE_INTERLACED;
2064
2065                 /* 160 msec page scan interval */
2066                 acp.interval = cpu_to_le16(0x0100);
2067         } else {
2068                 type = PAGE_SCAN_TYPE_STANDARD; /* default */
2069
2070                 /* default 1.28 sec page scan */
2071                 acp.interval = cpu_to_le16(0x0800);
2072         }
2073
2074         acp.window = cpu_to_le16(0x0012);
2075
2076         if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval ||
2077             __cpu_to_le16(hdev->page_scan_window) != acp.window)
2078                 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
2079                             sizeof(acp), &acp);
2080
2081         if (hdev->page_scan_type != type)
2082                 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
2083 }
2084
2085 static void set_connectable_complete(struct hci_dev *hdev, u8 status,
2086                                      u16 opcode)
2087 {
2088         struct mgmt_pending_cmd *cmd;
2089         struct mgmt_mode *cp;
2090         bool conn_changed, discov_changed;
2091
2092         BT_DBG("status 0x%02x", status);
2093
2094         hci_dev_lock(hdev);
2095
2096         cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
2097         if (!cmd)
2098                 goto unlock;
2099
2100         if (status) {
2101                 u8 mgmt_err = mgmt_status(status);
2102                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
2103                 goto remove_cmd;
2104         }
2105
2106         cp = cmd->param;
2107         if (cp->val) {
2108                 conn_changed = !hci_dev_test_and_set_flag(hdev,
2109                                                           HCI_CONNECTABLE);
2110                 discov_changed = false;
2111         } else {
2112                 conn_changed = hci_dev_test_and_clear_flag(hdev,
2113                                                            HCI_CONNECTABLE);
2114                 discov_changed = hci_dev_test_and_clear_flag(hdev,
2115                                                              HCI_DISCOVERABLE);
2116         }
2117
2118         send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
2119
2120         if (conn_changed || discov_changed) {
2121                 new_settings(hdev, cmd->sk);
2122                 hci_update_page_scan(hdev);
2123                 if (discov_changed)
2124                         mgmt_update_adv_data(hdev);
2125                 hci_update_background_scan(hdev);
2126         }
2127
2128 remove_cmd:
2129         mgmt_pending_remove(cmd);
2130
2131 unlock:
2132         hci_dev_unlock(hdev);
2133 }
2134
2135 static int set_connectable_update_settings(struct hci_dev *hdev,
2136                                            struct sock *sk, u8 val)
2137 {
2138         bool changed = false;
2139         int err;
2140
2141         if (!!val != hci_dev_test_flag(hdev, HCI_CONNECTABLE))
2142                 changed = true;
2143
2144         if (val) {
2145                 hci_dev_set_flag(hdev, HCI_CONNECTABLE);
2146         } else {
2147                 hci_dev_clear_flag(hdev, HCI_CONNECTABLE);
2148                 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2149         }
2150
2151         err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
2152         if (err < 0)
2153                 return err;
2154
2155         if (changed) {
2156                 hci_update_page_scan(hdev);
2157                 hci_update_background_scan(hdev);
2158                 return new_settings(hdev, sk);
2159         }
2160
2161         return 0;
2162 }
2163
2164 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
2165                            u16 len)
2166 {
2167         struct mgmt_mode *cp = data;
2168         struct mgmt_pending_cmd *cmd;
2169         struct hci_request req;
2170         u8 scan;
2171         int err;
2172
2173         BT_DBG("request for %s", hdev->name);
2174
2175         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
2176             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2177                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2178                                        MGMT_STATUS_REJECTED);
2179
2180         if (cp->val != 0x00 && cp->val != 0x01)
2181                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2182                                        MGMT_STATUS_INVALID_PARAMS);
2183
2184         hci_dev_lock(hdev);
2185
2186         if (!hdev_is_powered(hdev)) {
2187                 err = set_connectable_update_settings(hdev, sk, cp->val);
2188                 goto failed;
2189         }
2190
2191         if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
2192             pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
2193                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2194                                       MGMT_STATUS_BUSY);
2195                 goto failed;
2196         }
2197
2198         cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
2199         if (!cmd) {
2200                 err = -ENOMEM;
2201                 goto failed;
2202         }
2203
2204         hci_req_init(&req, hdev);
2205
2206         /* If BR/EDR is not enabled and we disable advertising as a
2207          * by-product of disabling connectable, we need to update the
2208          * advertising flags.
2209          */
2210         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2211                 if (!cp->val) {
2212                         hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2213                         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2214                 }
2215                 update_adv_data(&req);
2216         } else if (cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
2217                 if (cp->val) {
2218                         scan = SCAN_PAGE;
2219                 } else {
2220                         /* If we don't have any whitelist entries just
2221                          * disable all scanning. If there are entries
2222                          * and we had both page and inquiry scanning
2223                          * enabled then fall back to only page scanning.
2224                          * Otherwise no changes are needed.
2225                          */
2226                         if (list_empty(&hdev->whitelist))
2227                                 scan = SCAN_DISABLED;
2228                         else if (test_bit(HCI_ISCAN, &hdev->flags))
2229                                 scan = SCAN_PAGE;
2230                         else
2231                                 goto no_scan_update;
2232
2233                         if (test_bit(HCI_ISCAN, &hdev->flags) &&
2234                             hdev->discov_timeout > 0)
2235                                 cancel_delayed_work(&hdev->discov_off);
2236                 }
2237
2238                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
2239         }
2240
2241 no_scan_update:
2242         /* Update the advertising parameters if necessary */
2243         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
2244             hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
2245                 enable_advertising(&req);
2246
2247         err = hci_req_run(&req, set_connectable_complete);
2248         if (err < 0) {
2249                 mgmt_pending_remove(cmd);
2250                 if (err == -ENODATA)
2251                         err = set_connectable_update_settings(hdev, sk,
2252                                                               cp->val);
2253                 goto failed;
2254         }
2255
2256 failed:
2257         hci_dev_unlock(hdev);
2258         return err;
2259 }
2260
2261 static int set_bondable(struct sock *sk, struct hci_dev *hdev, void *data,
2262                         u16 len)
2263 {
2264         struct mgmt_mode *cp = data;
2265         bool changed;
2266         int err;
2267
2268         BT_DBG("request for %s", hdev->name);
2269
2270         if (cp->val != 0x00 && cp->val != 0x01)
2271                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BONDABLE,
2272                                        MGMT_STATUS_INVALID_PARAMS);
2273
2274         hci_dev_lock(hdev);
2275
2276         if (cp->val)
2277                 changed = !hci_dev_test_and_set_flag(hdev, HCI_BONDABLE);
2278         else
2279                 changed = hci_dev_test_and_clear_flag(hdev, HCI_BONDABLE);
2280
2281         err = send_settings_rsp(sk, MGMT_OP_SET_BONDABLE, hdev);
2282         if (err < 0)
2283                 goto unlock;
2284
2285         if (changed)
2286                 err = new_settings(hdev, sk);
2287
2288 unlock:
2289         hci_dev_unlock(hdev);
2290         return err;
2291 }
2292
2293 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
2294                              u16 len)
2295 {
2296         struct mgmt_mode *cp = data;
2297         struct mgmt_pending_cmd *cmd;
2298         u8 val, status;
2299         int err;
2300
2301         BT_DBG("request for %s", hdev->name);
2302
2303         status = mgmt_bredr_support(hdev);
2304         if (status)
2305                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2306                                        status);
2307
2308         if (cp->val != 0x00 && cp->val != 0x01)
2309                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2310                                        MGMT_STATUS_INVALID_PARAMS);
2311
2312         hci_dev_lock(hdev);
2313
2314         if (!hdev_is_powered(hdev)) {
2315                 bool changed = false;
2316
2317                 if (!!cp->val != hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) {
2318                         hci_dev_change_flag(hdev, HCI_LINK_SECURITY);
2319                         changed = true;
2320                 }
2321
2322                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2323                 if (err < 0)
2324                         goto failed;
2325
2326                 if (changed)
2327                         err = new_settings(hdev, sk);
2328
2329                 goto failed;
2330         }
2331
2332         if (pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
2333                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2334                                       MGMT_STATUS_BUSY);
2335                 goto failed;
2336         }
2337
2338         val = !!cp->val;
2339
2340         if (test_bit(HCI_AUTH, &hdev->flags) == val) {
2341                 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2342                 goto failed;
2343         }
2344
2345         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
2346         if (!cmd) {
2347                 err = -ENOMEM;
2348                 goto failed;
2349         }
2350
2351         err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
2352         if (err < 0) {
2353                 mgmt_pending_remove(cmd);
2354                 goto failed;
2355         }
2356
2357 failed:
2358         hci_dev_unlock(hdev);
2359         return err;
2360 }
2361
2362 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2363 {
2364         struct mgmt_mode *cp = data;
2365         struct mgmt_pending_cmd *cmd;
2366         u8 status;
2367         int err;
2368
2369         BT_DBG("request for %s", hdev->name);
2370
2371         status = mgmt_bredr_support(hdev);
2372         if (status)
2373                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status);
2374
2375         if (!lmp_ssp_capable(hdev))
2376                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2377                                        MGMT_STATUS_NOT_SUPPORTED);
2378
2379         if (cp->val != 0x00 && cp->val != 0x01)
2380                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2381                                        MGMT_STATUS_INVALID_PARAMS);
2382
2383         hci_dev_lock(hdev);
2384
2385         if (!hdev_is_powered(hdev)) {
2386                 bool changed;
2387
2388                 if (cp->val) {
2389                         changed = !hci_dev_test_and_set_flag(hdev,
2390                                                              HCI_SSP_ENABLED);
2391                 } else {
2392                         changed = hci_dev_test_and_clear_flag(hdev,
2393                                                               HCI_SSP_ENABLED);
2394                         if (!changed)
2395                                 changed = hci_dev_test_and_clear_flag(hdev,
2396                                                                       HCI_HS_ENABLED);
2397                         else
2398                                 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
2399                 }
2400
2401                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2402                 if (err < 0)
2403                         goto failed;
2404
2405                 if (changed)
2406                         err = new_settings(hdev, sk);
2407
2408                 goto failed;
2409         }
2410
2411         if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2412                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2413                                       MGMT_STATUS_BUSY);
2414                 goto failed;
2415         }
2416
2417         if (!!cp->val == hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
2418                 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2419                 goto failed;
2420         }
2421
2422         cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
2423         if (!cmd) {
2424                 err = -ENOMEM;
2425                 goto failed;
2426         }
2427
2428         if (!cp->val && hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
2429                 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
2430                              sizeof(cp->val), &cp->val);
2431
2432         err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
2433         if (err < 0) {
2434                 mgmt_pending_remove(cmd);
2435                 goto failed;
2436         }
2437
2438 failed:
2439         hci_dev_unlock(hdev);
2440         return err;
2441 }
2442
2443 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2444 {
2445         struct mgmt_mode *cp = data;
2446         bool changed;
2447         u8 status;
2448         int err;
2449
2450         BT_DBG("request for %s", hdev->name);
2451
2452         status = mgmt_bredr_support(hdev);
2453         if (status)
2454                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
2455
2456         if (!lmp_ssp_capable(hdev))
2457                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2458                                        MGMT_STATUS_NOT_SUPPORTED);
2459
2460         if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
2461                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2462                                        MGMT_STATUS_REJECTED);
2463
2464         if (cp->val != 0x00 && cp->val != 0x01)
2465                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2466                                        MGMT_STATUS_INVALID_PARAMS);
2467
2468         hci_dev_lock(hdev);
2469
2470         if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2471                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2472                                       MGMT_STATUS_BUSY);
2473                 goto unlock;
2474         }
2475
2476         if (cp->val) {
2477                 changed = !hci_dev_test_and_set_flag(hdev, HCI_HS_ENABLED);
2478         } else {
2479                 if (hdev_is_powered(hdev)) {
2480                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2481                                               MGMT_STATUS_REJECTED);
2482                         goto unlock;
2483                 }
2484
2485                 changed = hci_dev_test_and_clear_flag(hdev, HCI_HS_ENABLED);
2486         }
2487
2488         err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
2489         if (err < 0)
2490                 goto unlock;
2491
2492         if (changed)
2493                 err = new_settings(hdev, sk);
2494
2495 unlock:
2496         hci_dev_unlock(hdev);
2497         return err;
2498 }
2499
2500 static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2501 {
2502         struct cmd_lookup match = { NULL, hdev };
2503
2504         hci_dev_lock(hdev);
2505
2506         if (status) {
2507                 u8 mgmt_err = mgmt_status(status);
2508
2509                 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
2510                                      &mgmt_err);
2511                 goto unlock;
2512         }
2513
2514         mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
2515
2516         new_settings(hdev, match.sk);
2517
2518         if (match.sk)
2519                 sock_put(match.sk);
2520
2521         /* Make sure the controller has a good default for
2522          * advertising data. Restrict the update to when LE
2523          * has actually been enabled. During power on, the
2524          * update in powered_update_hci will take care of it.
2525          */
2526         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2527                 struct hci_request req;
2528
2529                 hci_req_init(&req, hdev);
2530                 update_adv_data(&req);
2531                 update_scan_rsp_data(&req);
2532                 __hci_update_background_scan(&req);
2533                 hci_req_run(&req, NULL);
2534         }
2535
2536 unlock:
2537         hci_dev_unlock(hdev);
2538 }
2539
2540 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2541 {
2542         struct mgmt_mode *cp = data;
2543         struct hci_cp_write_le_host_supported hci_cp;
2544         struct mgmt_pending_cmd *cmd;
2545         struct hci_request req;
2546         int err;
2547         u8 val, enabled;
2548
2549         BT_DBG("request for %s", hdev->name);
2550
2551         if (!lmp_le_capable(hdev))
2552                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2553                                        MGMT_STATUS_NOT_SUPPORTED);
2554
2555         if (cp->val != 0x00 && cp->val != 0x01)
2556                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2557                                        MGMT_STATUS_INVALID_PARAMS);
2558
2559         /* Bluetooth single mode LE only controllers or dual-mode
2560          * controllers configured as LE only devices, do not allow
2561          * switching LE off. These have either LE enabled explicitly
2562          * or BR/EDR has been previously switched off.
2563          *
2564          * When trying to enable an already enabled LE, then gracefully
2565          * send a positive response. Trying to disable it however will
2566          * result into rejection.
2567          */
2568         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2569                 if (cp->val == 0x01)
2570                         return send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2571
2572                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2573                                        MGMT_STATUS_REJECTED);
2574         }
2575
2576         hci_dev_lock(hdev);
2577
2578         val = !!cp->val;
2579         enabled = lmp_host_le_capable(hdev);
2580
2581         if (!val)
2582                 clear_adv_instance(hdev, NULL, 0x00, true);
2583
2584         if (!hdev_is_powered(hdev) || val == enabled) {
2585                 bool changed = false;
2586
2587                 if (val != hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2588                         hci_dev_change_flag(hdev, HCI_LE_ENABLED);
2589                         changed = true;
2590                 }
2591
2592                 if (!val && hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
2593                         hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2594                         changed = true;
2595                 }
2596
2597                 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2598                 if (err < 0)
2599                         goto unlock;
2600
2601                 if (changed)
2602                         err = new_settings(hdev, sk);
2603
2604                 goto unlock;
2605         }
2606
2607         if (pending_find(MGMT_OP_SET_LE, hdev) ||
2608             pending_find(MGMT_OP_SET_ADVERTISING, hdev)) {
2609                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2610                                       MGMT_STATUS_BUSY);
2611                 goto unlock;
2612         }
2613
2614         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
2615         if (!cmd) {
2616                 err = -ENOMEM;
2617                 goto unlock;
2618         }
2619
2620         hci_req_init(&req, hdev);
2621
2622         memset(&hci_cp, 0, sizeof(hci_cp));
2623
2624         if (val) {
2625                 hci_cp.le = val;
2626                 hci_cp.simul = 0x00;
2627         } else {
2628                 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
2629                         disable_advertising(&req);
2630         }
2631
2632         hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
2633                     &hci_cp);
2634
2635         err = hci_req_run(&req, le_enable_complete);
2636         if (err < 0)
2637                 mgmt_pending_remove(cmd);
2638
2639 unlock:
2640         hci_dev_unlock(hdev);
2641         return err;
2642 }
2643
2644 /* This is a helper function to test for pending mgmt commands that can
2645  * cause CoD or EIR HCI commands. We can only allow one such pending
2646  * mgmt command at a time since otherwise we cannot easily track what
2647  * the current values are, will be, and based on that calculate if a new
2648  * HCI command needs to be sent and if yes with what value.
2649  */
2650 static bool pending_eir_or_class(struct hci_dev *hdev)
2651 {
2652         struct mgmt_pending_cmd *cmd;
2653
2654         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
2655                 switch (cmd->opcode) {
2656                 case MGMT_OP_ADD_UUID:
2657                 case MGMT_OP_REMOVE_UUID:
2658                 case MGMT_OP_SET_DEV_CLASS:
2659                 case MGMT_OP_SET_POWERED:
2660                         return true;
2661                 }
2662         }
2663
2664         return false;
2665 }
2666
2667 static const u8 bluetooth_base_uuid[] = {
2668                         0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
2669                         0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2670 };
2671
2672 static u8 get_uuid_size(const u8 *uuid)
2673 {
2674         u32 val;
2675
2676         if (memcmp(uuid, bluetooth_base_uuid, 12))
2677                 return 128;
2678
2679         val = get_unaligned_le32(&uuid[12]);
2680         if (val > 0xffff)
2681                 return 32;
2682
2683         return 16;
2684 }
2685
2686 static void mgmt_class_complete(struct hci_dev *hdev, u16 mgmt_op, u8 status)
2687 {
2688         struct mgmt_pending_cmd *cmd;
2689
2690         hci_dev_lock(hdev);
2691
2692         cmd = pending_find(mgmt_op, hdev);
2693         if (!cmd)
2694                 goto unlock;
2695
2696         mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
2697                           mgmt_status(status), hdev->dev_class, 3);
2698
2699         mgmt_pending_remove(cmd);
2700
2701 unlock:
2702         hci_dev_unlock(hdev);
2703 }
2704
2705 static void add_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2706 {
2707         BT_DBG("status 0x%02x", status);
2708
2709         mgmt_class_complete(hdev, MGMT_OP_ADD_UUID, status);
2710 }
2711
2712 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2713 {
2714         struct mgmt_cp_add_uuid *cp = data;
2715         struct mgmt_pending_cmd *cmd;
2716         struct hci_request req;
2717         struct bt_uuid *uuid;
2718         int err;
2719
2720         BT_DBG("request for %s", hdev->name);
2721
2722         hci_dev_lock(hdev);
2723
2724         if (pending_eir_or_class(hdev)) {
2725                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
2726                                       MGMT_STATUS_BUSY);
2727                 goto failed;
2728         }
2729
2730         uuid = kmalloc(sizeof(*uuid), GFP_KERNEL);
2731         if (!uuid) {
2732                 err = -ENOMEM;
2733                 goto failed;
2734         }
2735
2736         memcpy(uuid->uuid, cp->uuid, 16);
2737         uuid->svc_hint = cp->svc_hint;
2738         uuid->size = get_uuid_size(cp->uuid);
2739
2740         list_add_tail(&uuid->list, &hdev->uuids);
2741
2742         hci_req_init(&req, hdev);
2743
2744         update_class(&req);
2745         update_eir(&req);
2746
2747         err = hci_req_run(&req, add_uuid_complete);
2748         if (err < 0) {
2749                 if (err != -ENODATA)
2750                         goto failed;
2751
2752                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
2753                                         hdev->dev_class, 3);
2754                 goto failed;
2755         }
2756
2757         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
2758         if (!cmd) {
2759                 err = -ENOMEM;
2760                 goto failed;
2761         }
2762
2763         err = 0;
2764
2765 failed:
2766         hci_dev_unlock(hdev);
2767         return err;
2768 }
2769
2770 static bool enable_service_cache(struct hci_dev *hdev)
2771 {
2772         if (!hdev_is_powered(hdev))
2773                 return false;
2774
2775         if (!hci_dev_test_and_set_flag(hdev, HCI_SERVICE_CACHE)) {
2776                 queue_delayed_work(hdev->workqueue, &hdev->service_cache,
2777                                    CACHE_TIMEOUT);
2778                 return true;
2779         }
2780
2781         return false;
2782 }
2783
2784 static void remove_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2785 {
2786         BT_DBG("status 0x%02x", status);
2787
2788         mgmt_class_complete(hdev, MGMT_OP_REMOVE_UUID, status);
2789 }
2790
2791 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
2792                        u16 len)
2793 {
2794         struct mgmt_cp_remove_uuid *cp = data;
2795         struct mgmt_pending_cmd *cmd;
2796         struct bt_uuid *match, *tmp;
2797         u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
2798         struct hci_request req;
2799         int err, found;
2800
2801         BT_DBG("request for %s", hdev->name);
2802
2803         hci_dev_lock(hdev);
2804
2805         if (pending_eir_or_class(hdev)) {
2806                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2807                                       MGMT_STATUS_BUSY);
2808                 goto unlock;
2809         }
2810
2811         if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
2812                 hci_uuids_clear(hdev);
2813
2814                 if (enable_service_cache(hdev)) {
2815                         err = mgmt_cmd_complete(sk, hdev->id,
2816                                                 MGMT_OP_REMOVE_UUID,
2817                                                 0, hdev->dev_class, 3);
2818                         goto unlock;
2819                 }
2820
2821                 goto update_class;
2822         }
2823
2824         found = 0;
2825
2826         list_for_each_entry_safe(match, tmp, &hdev->uuids, list) {
2827                 if (memcmp(match->uuid, cp->uuid, 16) != 0)
2828                         continue;
2829
2830                 list_del(&match->list);
2831                 kfree(match);
2832                 found++;
2833         }
2834
2835         if (found == 0) {
2836                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2837                                       MGMT_STATUS_INVALID_PARAMS);
2838                 goto unlock;
2839         }
2840
2841 update_class:
2842         hci_req_init(&req, hdev);
2843
2844         update_class(&req);
2845         update_eir(&req);
2846
2847         err = hci_req_run(&req, remove_uuid_complete);
2848         if (err < 0) {
2849                 if (err != -ENODATA)
2850                         goto unlock;
2851
2852                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
2853                                         hdev->dev_class, 3);
2854                 goto unlock;
2855         }
2856
2857         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
2858         if (!cmd) {
2859                 err = -ENOMEM;
2860                 goto unlock;
2861         }
2862
2863         err = 0;
2864
2865 unlock:
2866         hci_dev_unlock(hdev);
2867         return err;
2868 }
2869
2870 static void set_class_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2871 {
2872         BT_DBG("status 0x%02x", status);
2873
2874         mgmt_class_complete(hdev, MGMT_OP_SET_DEV_CLASS, status);
2875 }
2876
2877 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
2878                          u16 len)
2879 {
2880         struct mgmt_cp_set_dev_class *cp = data;
2881         struct mgmt_pending_cmd *cmd;
2882         struct hci_request req;
2883         int err;
2884
2885         BT_DBG("request for %s", hdev->name);
2886
2887         if (!lmp_bredr_capable(hdev))
2888                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2889                                        MGMT_STATUS_NOT_SUPPORTED);
2890
2891         hci_dev_lock(hdev);
2892
2893         if (pending_eir_or_class(hdev)) {
2894                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2895                                       MGMT_STATUS_BUSY);
2896                 goto unlock;
2897         }
2898
2899         if ((cp->minor & 0x03) != 0 || (cp->major & 0xe0) != 0) {
2900                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2901                                       MGMT_STATUS_INVALID_PARAMS);
2902                 goto unlock;
2903         }
2904
2905         hdev->major_class = cp->major;
2906         hdev->minor_class = cp->minor;
2907
2908         if (!hdev_is_powered(hdev)) {
2909                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2910                                         hdev->dev_class, 3);
2911                 goto unlock;
2912         }
2913
2914         hci_req_init(&req, hdev);
2915
2916         if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
2917                 hci_dev_unlock(hdev);
2918                 cancel_delayed_work_sync(&hdev->service_cache);
2919                 hci_dev_lock(hdev);
2920                 update_eir(&req);
2921         }
2922
2923         update_class(&req);
2924
2925         err = hci_req_run(&req, set_class_complete);
2926         if (err < 0) {
2927                 if (err != -ENODATA)
2928                         goto unlock;
2929
2930                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2931                                         hdev->dev_class, 3);
2932                 goto unlock;
2933         }
2934
2935         cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
2936         if (!cmd) {
2937                 err = -ENOMEM;
2938                 goto unlock;
2939         }
2940
2941         err = 0;
2942
2943 unlock:
2944         hci_dev_unlock(hdev);
2945         return err;
2946 }
2947
2948 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
2949                           u16 len)
2950 {
2951         struct mgmt_cp_load_link_keys *cp = data;
2952         const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
2953                                    sizeof(struct mgmt_link_key_info));
2954         u16 key_count, expected_len;
2955         bool changed;
2956         int i;
2957
2958         BT_DBG("request for %s", hdev->name);
2959
2960         if (!lmp_bredr_capable(hdev))
2961                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2962                                        MGMT_STATUS_NOT_SUPPORTED);
2963
2964         key_count = __le16_to_cpu(cp->key_count);
2965         if (key_count > max_key_count) {
2966                 BT_ERR("load_link_keys: too big key_count value %u",
2967                        key_count);
2968                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2969                                        MGMT_STATUS_INVALID_PARAMS);
2970         }
2971
2972         expected_len = sizeof(*cp) + key_count *
2973                                         sizeof(struct mgmt_link_key_info);
2974         if (expected_len != len) {
2975                 BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
2976                        expected_len, len);
2977                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2978                                        MGMT_STATUS_INVALID_PARAMS);
2979         }
2980
2981         if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
2982                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2983                                        MGMT_STATUS_INVALID_PARAMS);
2984
2985         BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
2986                key_count);
2987
2988         for (i = 0; i < key_count; i++) {
2989                 struct mgmt_link_key_info *key = &cp->keys[i];
2990
2991                 if (key->addr.type != BDADDR_BREDR || key->type > 0x08)
2992                         return mgmt_cmd_status(sk, hdev->id,
2993                                                MGMT_OP_LOAD_LINK_KEYS,
2994                                                MGMT_STATUS_INVALID_PARAMS);
2995         }
2996
2997         hci_dev_lock(hdev);
2998
2999         hci_link_keys_clear(hdev);
3000
3001         if (cp->debug_keys)
3002                 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
3003         else
3004                 changed = hci_dev_test_and_clear_flag(hdev,
3005                                                       HCI_KEEP_DEBUG_KEYS);
3006
3007         if (changed)
3008                 new_settings(hdev, NULL);
3009
3010         for (i = 0; i < key_count; i++) {
3011                 struct mgmt_link_key_info *key = &cp->keys[i];
3012
3013                 /* Always ignore debug keys and require a new pairing if
3014                  * the user wants to use them.
3015                  */
3016                 if (key->type == HCI_LK_DEBUG_COMBINATION)
3017                         continue;
3018
3019                 hci_add_link_key(hdev, NULL, &key->addr.bdaddr, key->val,
3020                                  key->type, key->pin_len, NULL);
3021         }
3022
3023         mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
3024
3025         hci_dev_unlock(hdev);
3026
3027         return 0;
3028 }
3029
3030 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
3031                            u8 addr_type, struct sock *skip_sk)
3032 {
3033         struct mgmt_ev_device_unpaired ev;
3034
3035         bacpy(&ev.addr.bdaddr, bdaddr);
3036         ev.addr.type = addr_type;
3037
3038         return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
3039                           skip_sk);
3040 }
3041
3042 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3043                          u16 len)
3044 {
3045         struct mgmt_cp_unpair_device *cp = data;
3046         struct mgmt_rp_unpair_device rp;
3047         struct hci_cp_disconnect dc;
3048         struct mgmt_pending_cmd *cmd;
3049         struct hci_conn *conn;
3050         int err;
3051
3052         memset(&rp, 0, sizeof(rp));
3053         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3054         rp.addr.type = cp->addr.type;
3055
3056         if (!bdaddr_type_is_valid(cp->addr.type))
3057                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3058                                          MGMT_STATUS_INVALID_PARAMS,
3059                                          &rp, sizeof(rp));
3060
3061         if (cp->disconnect != 0x00 && cp->disconnect != 0x01)
3062                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3063                                          MGMT_STATUS_INVALID_PARAMS,
3064                                          &rp, sizeof(rp));
3065
3066         hci_dev_lock(hdev);
3067
3068         if (!hdev_is_powered(hdev)) {
3069                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3070                                         MGMT_STATUS_NOT_POWERED, &rp,
3071                                         sizeof(rp));
3072                 goto unlock;
3073         }
3074
3075         if (cp->addr.type == BDADDR_BREDR) {
3076                 /* If disconnection is requested, then look up the
3077                  * connection. If the remote device is connected, it
3078                  * will be later used to terminate the link.
3079                  *
3080                  * Setting it to NULL explicitly will cause no
3081                  * termination of the link.
3082                  */
3083                 if (cp->disconnect)
3084                         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3085                                                        &cp->addr.bdaddr);
3086                 else
3087                         conn = NULL;
3088
3089                 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
3090         } else {
3091                 u8 addr_type;
3092
3093                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
3094                                                &cp->addr.bdaddr);
3095                 if (conn) {
3096                         /* Defer clearing up the connection parameters
3097                          * until closing to give a chance of keeping
3098                          * them if a repairing happens.
3099                          */
3100                         set_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3101
3102                         /* If disconnection is not requested, then
3103                          * clear the connection variable so that the
3104                          * link is not terminated.
3105                          */
3106                         if (!cp->disconnect)
3107                                 conn = NULL;
3108                 }
3109
3110                 if (cp->addr.type == BDADDR_LE_PUBLIC)
3111                         addr_type = ADDR_LE_DEV_PUBLIC;
3112                 else
3113                         addr_type = ADDR_LE_DEV_RANDOM;
3114
3115                 hci_remove_irk(hdev, &cp->addr.bdaddr, addr_type);
3116
3117                 err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type);
3118         }
3119
3120         if (err < 0) {
3121                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3122                                         MGMT_STATUS_NOT_PAIRED, &rp,
3123                                         sizeof(rp));
3124                 goto unlock;
3125         }
3126
3127         /* If the connection variable is set, then termination of the
3128          * link is requested.
3129          */
3130         if (!conn) {
3131                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
3132                                         &rp, sizeof(rp));
3133                 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
3134                 goto unlock;
3135         }
3136
3137         cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
3138                                sizeof(*cp));
3139         if (!cmd) {
3140                 err = -ENOMEM;
3141                 goto unlock;
3142         }
3143
3144         cmd->cmd_complete = addr_cmd_complete;
3145
3146         dc.handle = cpu_to_le16(conn->handle);
3147         dc.reason = 0x13; /* Remote User Terminated Connection */
3148         err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
3149         if (err < 0)
3150                 mgmt_pending_remove(cmd);
3151
3152 unlock:
3153         hci_dev_unlock(hdev);
3154         return err;
3155 }
3156
3157 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
3158                       u16 len)
3159 {
3160         struct mgmt_cp_disconnect *cp = data;
3161         struct mgmt_rp_disconnect rp;
3162         struct mgmt_pending_cmd *cmd;
3163         struct hci_conn *conn;
3164         int err;
3165
3166         BT_DBG("");
3167
3168         memset(&rp, 0, sizeof(rp));
3169         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3170         rp.addr.type = cp->addr.type;
3171
3172         if (!bdaddr_type_is_valid(cp->addr.type))
3173                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3174                                          MGMT_STATUS_INVALID_PARAMS,
3175                                          &rp, sizeof(rp));
3176
3177         hci_dev_lock(hdev);
3178
3179         if (!test_bit(HCI_UP, &hdev->flags)) {
3180                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3181                                         MGMT_STATUS_NOT_POWERED, &rp,
3182                                         sizeof(rp));
3183                 goto failed;
3184         }
3185
3186         if (pending_find(MGMT_OP_DISCONNECT, hdev)) {
3187                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3188                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
3189                 goto failed;
3190         }
3191
3192         if (cp->addr.type == BDADDR_BREDR)
3193                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3194                                                &cp->addr.bdaddr);
3195         else
3196                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
3197
3198         if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) {
3199                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3200                                         MGMT_STATUS_NOT_CONNECTED, &rp,
3201                                         sizeof(rp));
3202                 goto failed;
3203         }
3204
3205         cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
3206         if (!cmd) {
3207                 err = -ENOMEM;
3208                 goto failed;
3209         }
3210
3211         cmd->cmd_complete = generic_cmd_complete;
3212
3213         err = hci_disconnect(conn, HCI_ERROR_REMOTE_USER_TERM);
3214         if (err < 0)
3215                 mgmt_pending_remove(cmd);
3216
3217 failed:
3218         hci_dev_unlock(hdev);
3219         return err;
3220 }
3221
3222 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
3223 {
3224         switch (link_type) {
3225         case LE_LINK:
3226                 switch (addr_type) {
3227                 case ADDR_LE_DEV_PUBLIC:
3228                         return BDADDR_LE_PUBLIC;
3229
3230                 default:
3231                         /* Fallback to LE Random address type */
3232                         return BDADDR_LE_RANDOM;
3233                 }
3234
3235         default:
3236                 /* Fallback to BR/EDR type */
3237                 return BDADDR_BREDR;
3238         }
3239 }
3240
3241 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
3242                            u16 data_len)
3243 {
3244         struct mgmt_rp_get_connections *rp;
3245         struct hci_conn *c;
3246         size_t rp_len;
3247         int err;
3248         u16 i;
3249
3250         BT_DBG("");
3251
3252         hci_dev_lock(hdev);
3253
3254         if (!hdev_is_powered(hdev)) {
3255                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
3256                                       MGMT_STATUS_NOT_POWERED);
3257                 goto unlock;
3258         }
3259
3260         i = 0;
3261         list_for_each_entry(c, &hdev->conn_hash.list, list) {
3262                 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3263                         i++;
3264         }
3265
3266         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3267         rp = kmalloc(rp_len, GFP_KERNEL);
3268         if (!rp) {
3269                 err = -ENOMEM;
3270                 goto unlock;
3271         }
3272
3273         i = 0;
3274         list_for_each_entry(c, &hdev->conn_hash.list, list) {
3275                 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3276                         continue;
3277                 bacpy(&rp->addr[i].bdaddr, &c->dst);
3278                 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
3279                 if (c->type == SCO_LINK || c->type == ESCO_LINK)
3280                         continue;
3281                 i++;
3282         }
3283
3284         rp->conn_count = cpu_to_le16(i);
3285
3286         /* Recalculate length in case of filtered SCO connections, etc */
3287         rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3288
3289         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
3290                                 rp_len);
3291
3292         kfree(rp);
3293
3294 unlock:
3295         hci_dev_unlock(hdev);
3296         return err;
3297 }
3298
3299 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3300                                    struct mgmt_cp_pin_code_neg_reply *cp)
3301 {
3302         struct mgmt_pending_cmd *cmd;
3303         int err;
3304
3305         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
3306                                sizeof(*cp));
3307         if (!cmd)
3308                 return -ENOMEM;
3309
3310         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3311                            sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
3312         if (err < 0)
3313                 mgmt_pending_remove(cmd);
3314
3315         return err;
3316 }
3317
3318 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3319                           u16 len)
3320 {
3321         struct hci_conn *conn;
3322         struct mgmt_cp_pin_code_reply *cp = data;
3323         struct hci_cp_pin_code_reply reply;
3324         struct mgmt_pending_cmd *cmd;
3325         int err;
3326
3327         BT_DBG("");
3328
3329         hci_dev_lock(hdev);
3330
3331         if (!hdev_is_powered(hdev)) {
3332                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3333                                       MGMT_STATUS_NOT_POWERED);
3334                 goto failed;
3335         }
3336
3337         conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
3338         if (!conn) {
3339                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3340                                       MGMT_STATUS_NOT_CONNECTED);
3341                 goto failed;
3342         }
3343
3344         if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
3345                 struct mgmt_cp_pin_code_neg_reply ncp;
3346
3347                 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
3348
3349                 BT_ERR("PIN code is not 16 bytes long");
3350
3351                 err = send_pin_code_neg_reply(sk, hdev, &ncp);
3352                 if (err >= 0)
3353                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3354                                               MGMT_STATUS_INVALID_PARAMS);
3355
3356                 goto failed;
3357         }
3358
3359         cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
3360         if (!cmd) {
3361                 err = -ENOMEM;
3362                 goto failed;
3363         }
3364
3365         cmd->cmd_complete = addr_cmd_complete;
3366
3367         bacpy(&reply.bdaddr, &cp->addr.bdaddr);
3368         reply.pin_len = cp->pin_len;
3369         memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
3370
3371         err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
3372         if (err < 0)
3373                 mgmt_pending_remove(cmd);
3374
3375 failed:
3376         hci_dev_unlock(hdev);
3377         return err;
3378 }
3379
3380 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
3381                              u16 len)
3382 {
3383         struct mgmt_cp_set_io_capability *cp = data;
3384
3385         BT_DBG("");
3386
3387         if (cp->io_capability > SMP_IO_KEYBOARD_DISPLAY)
3388                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY,
3389                                          MGMT_STATUS_INVALID_PARAMS, NULL, 0);
3390
3391         hci_dev_lock(hdev);
3392
3393         hdev->io_capability = cp->io_capability;
3394
3395         BT_DBG("%s IO capability set to 0x%02x", hdev->name,
3396                hdev->io_capability);
3397
3398         hci_dev_unlock(hdev);
3399
3400         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0,
3401                                  NULL, 0);
3402 }
3403
3404 static struct mgmt_pending_cmd *find_pairing(struct hci_conn *conn)
3405 {
3406         struct hci_dev *hdev = conn->hdev;
3407         struct mgmt_pending_cmd *cmd;
3408
3409         list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
3410                 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
3411                         continue;
3412
3413                 if (cmd->user_data != conn)
3414                         continue;
3415
3416                 return cmd;
3417         }
3418
3419         return NULL;
3420 }
3421
3422 static int pairing_complete(struct mgmt_pending_cmd *cmd, u8 status)
3423 {
3424         struct mgmt_rp_pair_device rp;
3425         struct hci_conn *conn = cmd->user_data;
3426         int err;
3427
3428         bacpy(&rp.addr.bdaddr, &conn->dst);
3429         rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
3430
3431         err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE,
3432                                 status, &rp, sizeof(rp));
3433
3434         /* So we don't get further callbacks for this connection */
3435         conn->connect_cfm_cb = NULL;
3436         conn->security_cfm_cb = NULL;
3437         conn->disconn_cfm_cb = NULL;
3438
3439         hci_conn_drop(conn);
3440
3441         /* The device is paired so there is no need to remove
3442          * its connection parameters anymore.
3443          */
3444         clear_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3445
3446         hci_conn_put(conn);
3447
3448         return err;
3449 }
3450
3451 void mgmt_smp_complete(struct hci_conn *conn, bool complete)
3452 {
3453         u8 status = complete ? MGMT_STATUS_SUCCESS : MGMT_STATUS_FAILED;
3454         struct mgmt_pending_cmd *cmd;
3455
3456         cmd = find_pairing(conn);
3457         if (cmd) {
3458                 cmd->cmd_complete(cmd, status);
3459                 mgmt_pending_remove(cmd);
3460         }
3461 }
3462
3463 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
3464 {
3465         struct mgmt_pending_cmd *cmd;
3466
3467         BT_DBG("status %u", status);
3468
3469         cmd = find_pairing(conn);
3470         if (!cmd) {
3471                 BT_DBG("Unable to find a pending command");
3472                 return;
3473         }
3474
3475         cmd->cmd_complete(cmd, mgmt_status(status));
3476         mgmt_pending_remove(cmd);
3477 }
3478
3479 static void le_pairing_complete_cb(struct hci_conn *conn, u8 status)
3480 {
3481         struct mgmt_pending_cmd *cmd;
3482
3483         BT_DBG("status %u", status);
3484
3485         if (!status)
3486                 return;
3487
3488         cmd = find_pairing(conn);
3489         if (!cmd) {
3490                 BT_DBG("Unable to find a pending command");
3491                 return;
3492         }
3493
3494         cmd->cmd_complete(cmd, mgmt_status(status));
3495         mgmt_pending_remove(cmd);
3496 }
3497
3498 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3499                        u16 len)
3500 {
3501         struct mgmt_cp_pair_device *cp = data;
3502         struct mgmt_rp_pair_device rp;
3503         struct mgmt_pending_cmd *cmd;
3504         u8 sec_level, auth_type;
3505         struct hci_conn *conn;
3506         int err;
3507
3508         BT_DBG("");
3509
3510         memset(&rp, 0, sizeof(rp));
3511         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3512         rp.addr.type = cp->addr.type;
3513
3514         if (!bdaddr_type_is_valid(cp->addr.type))
3515                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3516                                          MGMT_STATUS_INVALID_PARAMS,
3517                                          &rp, sizeof(rp));
3518
3519         if (cp->io_cap > SMP_IO_KEYBOARD_DISPLAY)
3520                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3521                                          MGMT_STATUS_INVALID_PARAMS,
3522                                          &rp, sizeof(rp));
3523
3524         hci_dev_lock(hdev);
3525
3526         if (!hdev_is_powered(hdev)) {
3527                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3528                                         MGMT_STATUS_NOT_POWERED, &rp,
3529                                         sizeof(rp));
3530                 goto unlock;
3531         }
3532
3533         if (hci_bdaddr_is_paired(hdev, &cp->addr.bdaddr, cp->addr.type)) {
3534                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3535                                         MGMT_STATUS_ALREADY_PAIRED, &rp,
3536                                         sizeof(rp));
3537                 goto unlock;
3538         }
3539
3540         sec_level = BT_SECURITY_MEDIUM;
3541         auth_type = HCI_AT_DEDICATED_BONDING;
3542
3543         if (cp->addr.type == BDADDR_BREDR) {
3544                 conn = hci_connect_acl(hdev, &cp->addr.bdaddr, sec_level,
3545                                        auth_type);
3546         } else {
3547                 u8 addr_type;
3548
3549                 /* Convert from L2CAP channel address type to HCI address type
3550                  */
3551                 if (cp->addr.type == BDADDR_LE_PUBLIC)
3552                         addr_type = ADDR_LE_DEV_PUBLIC;
3553                 else
3554                         addr_type = ADDR_LE_DEV_RANDOM;
3555
3556                 /* When pairing a new device, it is expected to remember
3557                  * this device for future connections. Adding the connection
3558                  * parameter information ahead of time allows tracking
3559                  * of the slave preferred values and will speed up any
3560                  * further connection establishment.
3561                  *
3562                  * If connection parameters already exist, then they
3563                  * will be kept and this function does nothing.
3564                  */
3565                 hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
3566
3567                 conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type,
3568                                       sec_level, HCI_LE_CONN_TIMEOUT,
3569                                       HCI_ROLE_MASTER);
3570         }
3571
3572         if (IS_ERR(conn)) {
3573                 int status;
3574
3575                 if (PTR_ERR(conn) == -EBUSY)
3576                         status = MGMT_STATUS_BUSY;
3577                 else if (PTR_ERR(conn) == -EOPNOTSUPP)
3578                         status = MGMT_STATUS_NOT_SUPPORTED;
3579                 else if (PTR_ERR(conn) == -ECONNREFUSED)
3580                         status = MGMT_STATUS_REJECTED;
3581                 else
3582                         status = MGMT_STATUS_CONNECT_FAILED;
3583
3584                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3585                                         status, &rp, sizeof(rp));
3586                 goto unlock;
3587         }
3588
3589         if (conn->connect_cfm_cb) {
3590                 hci_conn_drop(conn);
3591                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3592                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
3593                 goto unlock;
3594         }
3595
3596         cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
3597         if (!cmd) {
3598                 err = -ENOMEM;
3599                 hci_conn_drop(conn);
3600                 goto unlock;
3601         }
3602
3603         cmd->cmd_complete = pairing_complete;
3604
3605         /* For LE, just connecting isn't a proof that the pairing finished */
3606         if (cp->addr.type == BDADDR_BREDR) {
3607                 conn->connect_cfm_cb = pairing_complete_cb;
3608                 conn->security_cfm_cb = pairing_complete_cb;
3609                 conn->disconn_cfm_cb = pairing_complete_cb;
3610         } else {
3611                 conn->connect_cfm_cb = le_pairing_complete_cb;
3612                 conn->security_cfm_cb = le_pairing_complete_cb;
3613                 conn->disconn_cfm_cb = le_pairing_complete_cb;
3614         }
3615
3616         conn->io_capability = cp->io_cap;
3617         cmd->user_data = hci_conn_get(conn);
3618
3619         if ((conn->state == BT_CONNECTED || conn->state == BT_CONFIG) &&
3620             hci_conn_security(conn, sec_level, auth_type, true)) {
3621                 cmd->cmd_complete(cmd, 0);
3622                 mgmt_pending_remove(cmd);
3623         }
3624
3625         err = 0;
3626
3627 unlock:
3628         hci_dev_unlock(hdev);
3629         return err;
3630 }
3631
3632 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3633                               u16 len)
3634 {
3635         struct mgmt_addr_info *addr = data;
3636         struct mgmt_pending_cmd *cmd;
3637         struct hci_conn *conn;
3638         int err;
3639
3640         BT_DBG("");
3641
3642         hci_dev_lock(hdev);
3643
3644         if (!hdev_is_powered(hdev)) {
3645                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3646                                       MGMT_STATUS_NOT_POWERED);
3647                 goto unlock;
3648         }
3649
3650         cmd = pending_find(MGMT_OP_PAIR_DEVICE, hdev);
3651         if (!cmd) {
3652                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3653                                       MGMT_STATUS_INVALID_PARAMS);
3654                 goto unlock;
3655         }
3656
3657         conn = cmd->user_data;
3658
3659         if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
3660                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3661                                       MGMT_STATUS_INVALID_PARAMS);
3662                 goto unlock;
3663         }
3664
3665         cmd->cmd_complete(cmd, MGMT_STATUS_CANCELLED);
3666         mgmt_pending_remove(cmd);
3667
3668         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
3669                                 addr, sizeof(*addr));
3670 unlock:
3671         hci_dev_unlock(hdev);
3672         return err;
3673 }
3674
3675 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
3676                              struct mgmt_addr_info *addr, u16 mgmt_op,
3677                              u16 hci_op, __le32 passkey)
3678 {
3679         struct mgmt_pending_cmd *cmd;
3680         struct hci_conn *conn;
3681         int err;
3682
3683         hci_dev_lock(hdev);
3684
3685         if (!hdev_is_powered(hdev)) {
3686                 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3687                                         MGMT_STATUS_NOT_POWERED, addr,
3688                                         sizeof(*addr));
3689                 goto done;
3690         }
3691
3692         if (addr->type == BDADDR_BREDR)
3693                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
3694         else
3695                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
3696
3697         if (!conn) {
3698                 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3699                                         MGMT_STATUS_NOT_CONNECTED, addr,
3700                                         sizeof(*addr));
3701                 goto done;
3702         }
3703
3704         if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
3705                 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
3706                 if (!err)
3707                         err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3708                                                 MGMT_STATUS_SUCCESS, addr,
3709                                                 sizeof(*addr));
3710                 else
3711                         err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3712                                                 MGMT_STATUS_FAILED, addr,
3713                                                 sizeof(*addr));
3714
3715                 goto done;
3716         }
3717
3718         cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
3719         if (!cmd) {
3720                 err = -ENOMEM;
3721                 goto done;
3722         }
3723
3724         cmd->cmd_complete = addr_cmd_complete;
3725
3726         /* Continue with pairing via HCI */
3727         if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
3728                 struct hci_cp_user_passkey_reply cp;
3729
3730                 bacpy(&cp.bdaddr, &addr->bdaddr);
3731                 cp.passkey = passkey;
3732                 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
3733         } else
3734                 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
3735                                    &addr->bdaddr);
3736
3737         if (err < 0)
3738                 mgmt_pending_remove(cmd);
3739
3740 done:
3741         hci_dev_unlock(hdev);
3742         return err;
3743 }
3744
3745 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3746                               void *data, u16 len)
3747 {
3748         struct mgmt_cp_pin_code_neg_reply *cp = data;
3749
3750         BT_DBG("");
3751
3752         return user_pairing_resp(sk, hdev, &cp->addr,
3753                                 MGMT_OP_PIN_CODE_NEG_REPLY,
3754                                 HCI_OP_PIN_CODE_NEG_REPLY, 0);
3755 }
3756
3757 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3758                               u16 len)
3759 {
3760         struct mgmt_cp_user_confirm_reply *cp = data;
3761
3762         BT_DBG("");
3763
3764         if (len != sizeof(*cp))
3765                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
3766                                        MGMT_STATUS_INVALID_PARAMS);
3767
3768         return user_pairing_resp(sk, hdev, &cp->addr,
3769                                  MGMT_OP_USER_CONFIRM_REPLY,
3770                                  HCI_OP_USER_CONFIRM_REPLY, 0);
3771 }
3772
3773 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
3774                                   void *data, u16 len)
3775 {
3776         struct mgmt_cp_user_confirm_neg_reply *cp = data;
3777
3778         BT_DBG("");
3779
3780         return user_pairing_resp(sk, hdev, &cp->addr,
3781                                  MGMT_OP_USER_CONFIRM_NEG_REPLY,
3782                                  HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
3783 }
3784
3785 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3786                               u16 len)
3787 {
3788         struct mgmt_cp_user_passkey_reply *cp = data;
3789
3790         BT_DBG("");
3791
3792         return user_pairing_resp(sk, hdev, &cp->addr,
3793                                  MGMT_OP_USER_PASSKEY_REPLY,
3794                                  HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
3795 }
3796
3797 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
3798                                   void *data, u16 len)
3799 {
3800         struct mgmt_cp_user_passkey_neg_reply *cp = data;
3801
3802         BT_DBG("");
3803
3804         return user_pairing_resp(sk, hdev, &cp->addr,
3805                                  MGMT_OP_USER_PASSKEY_NEG_REPLY,
3806                                  HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
3807 }
3808
3809 static void update_name(struct hci_request *req)
3810 {
3811         struct hci_dev *hdev = req->hdev;
3812         struct hci_cp_write_local_name cp;
3813
3814         memcpy(cp.name, hdev->dev_name, sizeof(cp.name));
3815
3816         hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
3817 }
3818
3819 static void set_name_complete(struct hci_dev *hdev, u8 status, u16 opcode)
3820 {
3821         struct mgmt_cp_set_local_name *cp;
3822         struct mgmt_pending_cmd *cmd;
3823
3824         BT_DBG("status 0x%02x", status);
3825
3826         hci_dev_lock(hdev);
3827
3828         cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
3829         if (!cmd)
3830                 goto unlock;
3831
3832         cp = cmd->param;
3833
3834         if (status)
3835                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3836                                 mgmt_status(status));
3837         else
3838                 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3839                                   cp, sizeof(*cp));
3840
3841         mgmt_pending_remove(cmd);
3842
3843 unlock:
3844         hci_dev_unlock(hdev);
3845 }
3846
3847 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
3848                           u16 len)
3849 {
3850         struct mgmt_cp_set_local_name *cp = data;
3851         struct mgmt_pending_cmd *cmd;
3852         struct hci_request req;
3853         int err;
3854
3855         BT_DBG("");
3856
3857         hci_dev_lock(hdev);
3858
3859         /* If the old values are the same as the new ones just return a
3860          * direct command complete event.
3861          */
3862         if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
3863             !memcmp(hdev->short_name, cp->short_name,
3864                     sizeof(hdev->short_name))) {
3865                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3866                                         data, len);
3867                 goto failed;
3868         }
3869
3870         memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
3871
3872         if (!hdev_is_powered(hdev)) {
3873                 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3874
3875                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3876                                         data, len);
3877                 if (err < 0)
3878                         goto failed;
3879
3880                 err = mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev,
3881                                          data, len, sk);
3882
3883                 goto failed;
3884         }
3885
3886         cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
3887         if (!cmd) {
3888                 err = -ENOMEM;
3889                 goto failed;
3890         }
3891
3892         memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3893
3894         hci_req_init(&req, hdev);
3895
3896         if (lmp_bredr_capable(hdev)) {
3897                 update_name(&req);
3898                 update_eir(&req);
3899         }
3900
3901         /* The name is stored in the scan response data and so
3902          * no need to udpate the advertising data here.
3903          */
3904         if (lmp_le_capable(hdev))
3905                 update_scan_rsp_data(&req);
3906
3907         err = hci_req_run(&req, set_name_complete);
3908         if (err < 0)
3909                 mgmt_pending_remove(cmd);
3910
3911 failed:
3912         hci_dev_unlock(hdev);
3913         return err;
3914 }
3915
3916 static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
3917                                          u16 opcode, struct sk_buff *skb)
3918 {
3919         struct mgmt_rp_read_local_oob_data mgmt_rp;
3920         size_t rp_size = sizeof(mgmt_rp);
3921         struct mgmt_pending_cmd *cmd;
3922
3923         BT_DBG("%s status %u", hdev->name, status);
3924
3925         cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
3926         if (!cmd)
3927                 return;
3928
3929         if (status || !skb) {
3930                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3931                                 status ? mgmt_status(status) : MGMT_STATUS_FAILED);
3932                 goto remove;
3933         }
3934
3935         memset(&mgmt_rp, 0, sizeof(mgmt_rp));
3936
3937         if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
3938                 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
3939
3940                 if (skb->len < sizeof(*rp)) {
3941                         mgmt_cmd_status(cmd->sk, hdev->id,
3942                                         MGMT_OP_READ_LOCAL_OOB_DATA,
3943                                         MGMT_STATUS_FAILED);
3944                         goto remove;
3945                 }
3946
3947                 memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
3948                 memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
3949
3950                 rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
3951         } else {
3952                 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
3953
3954                 if (skb->len < sizeof(*rp)) {
3955                         mgmt_cmd_status(cmd->sk, hdev->id,
3956                                         MGMT_OP_READ_LOCAL_OOB_DATA,
3957                                         MGMT_STATUS_FAILED);
3958                         goto remove;
3959                 }
3960
3961                 memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
3962                 memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
3963
3964                 memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
3965                 memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
3966         }
3967
3968         mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3969                           MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
3970
3971 remove:
3972         mgmt_pending_remove(cmd);
3973 }
3974
3975 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
3976                                void *data, u16 data_len)
3977 {
3978         struct mgmt_pending_cmd *cmd;
3979         struct hci_request req;
3980         int err;
3981
3982         BT_DBG("%s", hdev->name);
3983
3984         hci_dev_lock(hdev);
3985
3986         if (!hdev_is_powered(hdev)) {
3987                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3988                                       MGMT_STATUS_NOT_POWERED);
3989                 goto unlock;
3990         }
3991
3992         if (!lmp_ssp_capable(hdev)) {
3993                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3994                                       MGMT_STATUS_NOT_SUPPORTED);
3995                 goto unlock;
3996         }
3997
3998         if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
3999                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
4000                                       MGMT_STATUS_BUSY);
4001                 goto unlock;
4002         }
4003
4004         cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
4005         if (!cmd) {
4006                 err = -ENOMEM;
4007                 goto unlock;
4008         }
4009
4010         hci_req_init(&req, hdev);
4011
4012         if (bredr_sc_enabled(hdev))
4013                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
4014         else
4015                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
4016
4017         err = hci_req_run_skb(&req, read_local_oob_data_complete);
4018         if (err < 0)
4019                 mgmt_pending_remove(cmd);
4020
4021 unlock:
4022         hci_dev_unlock(hdev);
4023         return err;
4024 }
4025
4026 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4027                                void *data, u16 len)
4028 {
4029         struct mgmt_addr_info *addr = data;
4030         int err;
4031
4032         BT_DBG("%s ", hdev->name);
4033
4034         if (!bdaddr_type_is_valid(addr->type))
4035                 return mgmt_cmd_complete(sk, hdev->id,
4036                                          MGMT_OP_ADD_REMOTE_OOB_DATA,
4037                                          MGMT_STATUS_INVALID_PARAMS,
4038                                          addr, sizeof(*addr));
4039
4040         hci_dev_lock(hdev);
4041
4042         if (len == MGMT_ADD_REMOTE_OOB_DATA_SIZE) {
4043                 struct mgmt_cp_add_remote_oob_data *cp = data;
4044                 u8 status;
4045
4046                 if (cp->addr.type != BDADDR_BREDR) {
4047                         err = mgmt_cmd_complete(sk, hdev->id,
4048                                                 MGMT_OP_ADD_REMOTE_OOB_DATA,
4049                                                 MGMT_STATUS_INVALID_PARAMS,
4050                                                 &cp->addr, sizeof(cp->addr));
4051                         goto unlock;
4052                 }
4053
4054                 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4055                                               cp->addr.type, cp->hash,
4056                                               cp->rand, NULL, NULL);
4057                 if (err < 0)
4058                         status = MGMT_STATUS_FAILED;
4059                 else
4060                         status = MGMT_STATUS_SUCCESS;
4061
4062                 err = mgmt_cmd_complete(sk, hdev->id,
4063                                         MGMT_OP_ADD_REMOTE_OOB_DATA, status,
4064                                         &cp->addr, sizeof(cp->addr));
4065         } else if (len == MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE) {
4066                 struct mgmt_cp_add_remote_oob_ext_data *cp = data;
4067                 u8 *rand192, *hash192, *rand256, *hash256;
4068                 u8 status;
4069
4070                 if (bdaddr_type_is_le(cp->addr.type)) {
4071                         /* Enforce zero-valued 192-bit parameters as
4072                          * long as legacy SMP OOB isn't implemented.
4073                          */
4074                         if (memcmp(cp->rand192, ZERO_KEY, 16) ||
4075                             memcmp(cp->hash192, ZERO_KEY, 16)) {
4076                                 err = mgmt_cmd_complete(sk, hdev->id,
4077                                                         MGMT_OP_ADD_REMOTE_OOB_DATA,
4078                                                         MGMT_STATUS_INVALID_PARAMS,
4079                                                         addr, sizeof(*addr));
4080                                 goto unlock;
4081                         }
4082
4083                         rand192 = NULL;
4084                         hash192 = NULL;
4085                 } else {
4086                         /* In case one of the P-192 values is set to zero,
4087                          * then just disable OOB data for P-192.
4088                          */
4089                         if (!memcmp(cp->rand192, ZERO_KEY, 16) ||
4090                             !memcmp(cp->hash192, ZERO_KEY, 16)) {
4091                                 rand192 = NULL;
4092                                 hash192 = NULL;
4093                         } else {
4094                                 rand192 = cp->rand192;
4095                                 hash192 = cp->hash192;
4096                         }
4097                 }
4098
4099                 /* In case one of the P-256 values is set to zero, then just
4100                  * disable OOB data for P-256.
4101                  */
4102                 if (!memcmp(cp->rand256, ZERO_KEY, 16) ||
4103                     !memcmp(cp->hash256, ZERO_KEY, 16)) {
4104                         rand256 = NULL;
4105                         hash256 = NULL;
4106                 } else {
4107                         rand256 = cp->rand256;
4108                         hash256 = cp->hash256;
4109                 }
4110
4111                 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4112                                               cp->addr.type, hash192, rand192,
4113                                               hash256, rand256);
4114                 if (err < 0)
4115                         status = MGMT_STATUS_FAILED;
4116                 else
4117                         status = MGMT_STATUS_SUCCESS;
4118
4119                 err = mgmt_cmd_complete(sk, hdev->id,
4120                                         MGMT_OP_ADD_REMOTE_OOB_DATA,
4121                                         status, &cp->addr, sizeof(cp->addr));
4122         } else {
4123                 BT_ERR("add_remote_oob_data: invalid length of %u bytes", len);
4124                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
4125                                       MGMT_STATUS_INVALID_PARAMS);
4126         }
4127
4128 unlock:
4129         hci_dev_unlock(hdev);
4130         return err;
4131 }
4132
4133 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4134                                   void *data, u16 len)
4135 {
4136         struct mgmt_cp_remove_remote_oob_data *cp = data;
4137         u8 status;
4138         int err;
4139
4140         BT_DBG("%s", hdev->name);
4141
4142         if (cp->addr.type != BDADDR_BREDR)
4143                 return mgmt_cmd_complete(sk, hdev->id,
4144                                          MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4145                                          MGMT_STATUS_INVALID_PARAMS,
4146                                          &cp->addr, sizeof(cp->addr));
4147
4148         hci_dev_lock(hdev);
4149
4150         if (!bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
4151                 hci_remote_oob_data_clear(hdev);
4152                 status = MGMT_STATUS_SUCCESS;
4153                 goto done;
4154         }
4155
4156         err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr, cp->addr.type);
4157         if (err < 0)
4158                 status = MGMT_STATUS_INVALID_PARAMS;
4159         else
4160                 status = MGMT_STATUS_SUCCESS;
4161
4162 done:
4163         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4164                                 status, &cp->addr, sizeof(cp->addr));
4165
4166         hci_dev_unlock(hdev);
4167         return err;
4168 }
4169
4170 static bool trigger_bredr_inquiry(struct hci_request *req, u8 *status)
4171 {
4172         struct hci_dev *hdev = req->hdev;
4173         struct hci_cp_inquiry cp;
4174         /* General inquiry access code (GIAC) */
4175         u8 lap[3] = { 0x33, 0x8b, 0x9e };
4176
4177         *status = mgmt_bredr_support(hdev);
4178         if (*status)
4179                 return false;
4180
4181         if (hci_dev_test_flag(hdev, HCI_INQUIRY)) {
4182                 *status = MGMT_STATUS_BUSY;
4183                 return false;
4184         }
4185
4186         hci_inquiry_cache_flush(hdev);
4187
4188         memset(&cp, 0, sizeof(cp));
4189         memcpy(&cp.lap, lap, sizeof(cp.lap));
4190         cp.length = DISCOV_BREDR_INQUIRY_LEN;
4191
4192         hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
4193
4194         return true;
4195 }
4196
4197 static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status)
4198 {
4199         struct hci_dev *hdev = req->hdev;
4200         struct hci_cp_le_set_scan_param param_cp;
4201         struct hci_cp_le_set_scan_enable enable_cp;
4202         u8 own_addr_type;
4203         int err;
4204
4205         *status = mgmt_le_support(hdev);
4206         if (*status)
4207                 return false;
4208
4209         if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
4210                 /* Don't let discovery abort an outgoing connection attempt
4211                  * that's using directed advertising.
4212                  */
4213                 if (hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) {
4214                         *status = MGMT_STATUS_REJECTED;
4215                         return false;
4216                 }
4217
4218                 disable_advertising(req);
4219         }
4220
4221         /* If controller is scanning, it means the background scanning is
4222          * running. Thus, we should temporarily stop it in order to set the
4223          * discovery scanning parameters.
4224          */
4225         if (hci_dev_test_flag(hdev, HCI_LE_SCAN))
4226                 hci_req_add_le_scan_disable(req);
4227
4228         /* All active scans will be done with either a resolvable private
4229          * address (when privacy feature has been enabled) or non-resolvable
4230          * private address.
4231          */
4232         err = hci_update_random_address(req, true, &own_addr_type);
4233         if (err < 0) {
4234                 *status = MGMT_STATUS_FAILED;
4235                 return false;
4236         }
4237
4238         memset(&param_cp, 0, sizeof(param_cp));
4239         param_cp.type = LE_SCAN_ACTIVE;
4240         param_cp.interval = cpu_to_le16(interval);
4241         param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
4242         param_cp.own_address_type = own_addr_type;
4243
4244         hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
4245                     &param_cp);
4246
4247         memset(&enable_cp, 0, sizeof(enable_cp));
4248         enable_cp.enable = LE_SCAN_ENABLE;
4249         enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
4250
4251         hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
4252                     &enable_cp);
4253
4254         return true;
4255 }
4256
4257 static bool trigger_discovery(struct hci_request *req, u8 *status)
4258 {
4259         struct hci_dev *hdev = req->hdev;
4260
4261         switch (hdev->discovery.type) {
4262         case DISCOV_TYPE_BREDR:
4263                 if (!trigger_bredr_inquiry(req, status))
4264                         return false;
4265                 break;
4266
4267         case DISCOV_TYPE_INTERLEAVED:
4268                 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY,
4269                              &hdev->quirks)) {
4270                         /* During simultaneous discovery, we double LE scan
4271                          * interval. We must leave some time for the controller
4272                          * to do BR/EDR inquiry.
4273                          */
4274                         if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2,
4275                                              status))
4276                                 return false;
4277
4278                         if (!trigger_bredr_inquiry(req, status))
4279                                 return false;
4280
4281                         return true;
4282                 }
4283
4284                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
4285                         *status = MGMT_STATUS_NOT_SUPPORTED;
4286                         return false;
4287                 }
4288                 /* fall through */
4289
4290         case DISCOV_TYPE_LE:
4291                 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT, status))
4292                         return false;
4293                 break;
4294
4295         default:
4296                 *status = MGMT_STATUS_INVALID_PARAMS;
4297                 return false;
4298         }
4299
4300         return true;
4301 }
4302
4303 static void start_discovery_complete(struct hci_dev *hdev, u8 status,
4304                                      u16 opcode)
4305 {
4306         struct mgmt_pending_cmd *cmd;
4307         unsigned long timeout;
4308
4309         BT_DBG("status %d", status);
4310
4311         hci_dev_lock(hdev);
4312
4313         cmd = pending_find(MGMT_OP_START_DISCOVERY, hdev);
4314         if (!cmd)
4315                 cmd = pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev);
4316
4317         if (cmd) {
4318                 cmd->cmd_complete(cmd, mgmt_status(status));
4319                 mgmt_pending_remove(cmd);
4320         }
4321
4322         if (status) {
4323                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4324                 goto unlock;
4325         }
4326
4327         hci_discovery_set_state(hdev, DISCOVERY_FINDING);
4328
4329         /* If the scan involves LE scan, pick proper timeout to schedule
4330          * hdev->le_scan_disable that will stop it.
4331          */
4332         switch (hdev->discovery.type) {
4333         case DISCOV_TYPE_LE:
4334                 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4335                 break;
4336         case DISCOV_TYPE_INTERLEAVED:
4337                  /* When running simultaneous discovery, the LE scanning time
4338                  * should occupy the whole discovery time sine BR/EDR inquiry
4339                  * and LE scanning are scheduled by the controller.
4340                  *
4341                  * For interleaving discovery in comparison, BR/EDR inquiry
4342                  * and LE scanning are done sequentially with separate
4343                  * timeouts.
4344                  */
4345                 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
4346                         timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4347                 else
4348                         timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout);
4349                 break;
4350         case DISCOV_TYPE_BREDR:
4351                 timeout = 0;
4352                 break;
4353         default:
4354                 BT_ERR("Invalid discovery type %d", hdev->discovery.type);
4355                 timeout = 0;
4356                 break;
4357         }
4358
4359         if (timeout) {
4360                 /* When service discovery is used and the controller has
4361                  * a strict duplicate filter, it is important to remember
4362                  * the start and duration of the scan. This is required
4363                  * for restarting scanning during the discovery phase.
4364                  */
4365                 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER,
4366                              &hdev->quirks) &&
4367                     hdev->discovery.result_filtering) {
4368                         hdev->discovery.scan_start = jiffies;
4369                         hdev->discovery.scan_duration = timeout;
4370                 }
4371
4372                 queue_delayed_work(hdev->workqueue,
4373                                    &hdev->le_scan_disable, timeout);
4374         }
4375
4376 unlock:
4377         hci_dev_unlock(hdev);
4378 }
4379
4380 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
4381                            void *data, u16 len)
4382 {
4383         struct mgmt_cp_start_discovery *cp = data;
4384         struct mgmt_pending_cmd *cmd;
4385         struct hci_request req;
4386         u8 status;
4387         int err;
4388
4389         BT_DBG("%s", hdev->name);
4390
4391         hci_dev_lock(hdev);
4392
4393         if (!hdev_is_powered(hdev)) {
4394                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4395                                         MGMT_STATUS_NOT_POWERED,
4396                                         &cp->type, sizeof(cp->type));
4397                 goto failed;
4398         }
4399
4400         if (hdev->discovery.state != DISCOVERY_STOPPED ||
4401             hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4402                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4403                                         MGMT_STATUS_BUSY, &cp->type,
4404                                         sizeof(cp->type));
4405                 goto failed;
4406         }
4407
4408         cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len);
4409         if (!cmd) {
4410                 err = -ENOMEM;
4411                 goto failed;
4412         }
4413
4414         cmd->cmd_complete = generic_cmd_complete;
4415
4416         /* Clear the discovery filter first to free any previously
4417          * allocated memory for the UUID list.
4418          */
4419         hci_discovery_filter_clear(hdev);
4420
4421         hdev->discovery.type = cp->type;
4422         hdev->discovery.report_invalid_rssi = false;
4423
4424         hci_req_init(&req, hdev);
4425
4426         if (!trigger_discovery(&req, &status)) {
4427                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4428                                         status, &cp->type, sizeof(cp->type));
4429                 mgmt_pending_remove(cmd);
4430                 goto failed;
4431         }
4432
4433         err = hci_req_run(&req, start_discovery_complete);
4434         if (err < 0) {
4435                 mgmt_pending_remove(cmd);
4436                 goto failed;
4437         }
4438
4439         hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4440
4441 failed:
4442         hci_dev_unlock(hdev);
4443         return err;
4444 }
4445
4446 static int service_discovery_cmd_complete(struct mgmt_pending_cmd *cmd,
4447                                           u8 status)
4448 {
4449         return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
4450                                  cmd->param, 1);
4451 }
4452
4453 static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
4454                                    void *data, u16 len)
4455 {
4456         struct mgmt_cp_start_service_discovery *cp = data;
4457         struct mgmt_pending_cmd *cmd;
4458         struct hci_request req;
4459         const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16);
4460         u16 uuid_count, expected_len;
4461         u8 status;
4462         int err;
4463
4464         BT_DBG("%s", hdev->name);
4465
4466         hci_dev_lock(hdev);
4467
4468         if (!hdev_is_powered(hdev)) {
4469                 err = mgmt_cmd_complete(sk, hdev->id,
4470                                         MGMT_OP_START_SERVICE_DISCOVERY,
4471                                         MGMT_STATUS_NOT_POWERED,
4472                                         &cp->type, sizeof(cp->type));
4473                 goto failed;
4474         }
4475
4476         if (hdev->discovery.state != DISCOVERY_STOPPED ||
4477             hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4478                 err = mgmt_cmd_complete(sk, hdev->id,
4479                                         MGMT_OP_START_SERVICE_DISCOVERY,
4480                                         MGMT_STATUS_BUSY, &cp->type,
4481                                         sizeof(cp->type));
4482                 goto failed;
4483         }
4484
4485         uuid_count = __le16_to_cpu(cp->uuid_count);
4486         if (uuid_count > max_uuid_count) {
4487                 BT_ERR("service_discovery: too big uuid_count value %u",
4488                        uuid_count);
4489                 err = mgmt_cmd_complete(sk, hdev->id,
4490                                         MGMT_OP_START_SERVICE_DISCOVERY,
4491                                         MGMT_STATUS_INVALID_PARAMS, &cp->type,
4492                                         sizeof(cp->type));
4493                 goto failed;
4494         }
4495
4496         expected_len = sizeof(*cp) + uuid_count * 16;
4497         if (expected_len != len) {
4498                 BT_ERR("service_discovery: expected %u bytes, got %u bytes",
4499                        expected_len, len);
4500                 err = mgmt_cmd_complete(sk, hdev->id,
4501                                         MGMT_OP_START_SERVICE_DISCOVERY,
4502                                         MGMT_STATUS_INVALID_PARAMS, &cp->type,
4503                                         sizeof(cp->type));
4504                 goto failed;
4505         }
4506
4507         cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
4508                                hdev, data, len);
4509         if (!cmd) {
4510                 err = -ENOMEM;
4511                 goto failed;
4512         }
4513
4514         cmd->cmd_complete = service_discovery_cmd_complete;
4515
4516         /* Clear the discovery filter first to free any previously
4517          * allocated memory for the UUID list.
4518          */
4519         hci_discovery_filter_clear(hdev);
4520
4521         hdev->discovery.result_filtering = true;
4522         hdev->discovery.type = cp->type;
4523         hdev->discovery.rssi = cp->rssi;
4524         hdev->discovery.uuid_count = uuid_count;
4525
4526         if (uuid_count > 0) {
4527                 hdev->discovery.uuids = kmemdup(cp->uuids, uuid_count * 16,
4528                                                 GFP_KERNEL);
4529                 if (!hdev->discovery.uuids) {
4530                         err = mgmt_cmd_complete(sk, hdev->id,
4531                                                 MGMT_OP_START_SERVICE_DISCOVERY,
4532                                                 MGMT_STATUS_FAILED,
4533                                                 &cp->type, sizeof(cp->type));
4534                         mgmt_pending_remove(cmd);
4535                         goto failed;
4536                 }
4537         }
4538
4539         hci_req_init(&req, hdev);
4540
4541         if (!trigger_discovery(&req, &status)) {
4542                 err = mgmt_cmd_complete(sk, hdev->id,
4543                                         MGMT_OP_START_SERVICE_DISCOVERY,
4544                                         status, &cp->type, sizeof(cp->type));
4545                 mgmt_pending_remove(cmd);
4546                 goto failed;
4547         }
4548
4549         err = hci_req_run(&req, start_discovery_complete);
4550         if (err < 0) {
4551                 mgmt_pending_remove(cmd);
4552                 goto failed;
4553         }
4554
4555         hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4556
4557 failed:
4558         hci_dev_unlock(hdev);
4559         return err;
4560 }
4561
4562 static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode)
4563 {
4564         struct mgmt_pending_cmd *cmd;
4565
4566         BT_DBG("status %d", status);
4567
4568         hci_dev_lock(hdev);
4569
4570         cmd = pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
4571         if (cmd) {
4572                 cmd->cmd_complete(cmd, mgmt_status(status));
4573                 mgmt_pending_remove(cmd);
4574         }
4575
4576         if (!status)
4577                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4578
4579         hci_dev_unlock(hdev);
4580 }
4581
4582 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
4583                           u16 len)
4584 {
4585         struct mgmt_cp_stop_discovery *mgmt_cp = data;
4586         struct mgmt_pending_cmd *cmd;
4587         struct hci_request req;
4588         int err;
4589
4590         BT_DBG("%s", hdev->name);
4591
4592         hci_dev_lock(hdev);
4593
4594         if (!hci_discovery_active(hdev)) {
4595                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4596                                         MGMT_STATUS_REJECTED, &mgmt_cp->type,
4597                                         sizeof(mgmt_cp->type));
4598                 goto unlock;
4599         }
4600
4601         if (hdev->discovery.type != mgmt_cp->type) {
4602                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4603                                         MGMT_STATUS_INVALID_PARAMS,
4604                                         &mgmt_cp->type, sizeof(mgmt_cp->type));
4605                 goto unlock;
4606         }
4607
4608         cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
4609         if (!cmd) {
4610                 err = -ENOMEM;
4611                 goto unlock;
4612         }
4613
4614         cmd->cmd_complete = generic_cmd_complete;
4615
4616         hci_req_init(&req, hdev);
4617
4618         hci_stop_discovery(&req);
4619
4620         err = hci_req_run(&req, stop_discovery_complete);
4621         if (!err) {
4622                 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
4623                 goto unlock;
4624         }
4625
4626         mgmt_pending_remove(cmd);
4627
4628         /* If no HCI commands were sent we're done */
4629         if (err == -ENODATA) {
4630                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
4631                                         &mgmt_cp->type, sizeof(mgmt_cp->type));
4632                 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4633         }
4634
4635 unlock:
4636         hci_dev_unlock(hdev);
4637         return err;
4638 }
4639
4640 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
4641                         u16 len)
4642 {
4643         struct mgmt_cp_confirm_name *cp = data;
4644         struct inquiry_entry *e;
4645         int err;
4646
4647         BT_DBG("%s", hdev->name);
4648
4649         hci_dev_lock(hdev);
4650
4651         if (!hci_discovery_active(hdev)) {
4652                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4653                                         MGMT_STATUS_FAILED, &cp->addr,
4654                                         sizeof(cp->addr));
4655                 goto failed;
4656         }
4657
4658         e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
4659         if (!e) {
4660                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4661                                         MGMT_STATUS_INVALID_PARAMS, &cp->addr,
4662                                         sizeof(cp->addr));
4663                 goto failed;
4664         }
4665
4666         if (cp->name_known) {
4667                 e->name_state = NAME_KNOWN;
4668                 list_del(&e->list);
4669         } else {
4670                 e->name_state = NAME_NEEDED;
4671                 hci_inquiry_cache_update_resolve(hdev, e);
4672         }
4673
4674         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 0,
4675                                 &cp->addr, sizeof(cp->addr));
4676
4677 failed:
4678         hci_dev_unlock(hdev);
4679         return err;
4680 }
4681
4682 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
4683                         u16 len)
4684 {
4685         struct mgmt_cp_block_device *cp = data;
4686         u8 status;
4687         int err;
4688
4689         BT_DBG("%s", hdev->name);
4690
4691         if (!bdaddr_type_is_valid(cp->addr.type))
4692                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE,
4693                                          MGMT_STATUS_INVALID_PARAMS,
4694                                          &cp->addr, sizeof(cp->addr));
4695
4696         hci_dev_lock(hdev);
4697
4698         err = hci_bdaddr_list_add(&hdev->blacklist, &cp->addr.bdaddr,
4699                                   cp->addr.type);
4700         if (err < 0) {
4701                 status = MGMT_STATUS_FAILED;
4702                 goto done;
4703         }
4704
4705         mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4706                    sk);
4707         status = MGMT_STATUS_SUCCESS;
4708
4709 done:
4710         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
4711                                 &cp->addr, sizeof(cp->addr));
4712
4713         hci_dev_unlock(hdev);
4714
4715         return err;
4716 }
4717
4718 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
4719                           u16 len)
4720 {
4721         struct mgmt_cp_unblock_device *cp = data;
4722         u8 status;
4723         int err;
4724
4725         BT_DBG("%s", hdev->name);
4726
4727         if (!bdaddr_type_is_valid(cp->addr.type))
4728                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE,
4729                                          MGMT_STATUS_INVALID_PARAMS,
4730                                          &cp->addr, sizeof(cp->addr));
4731
4732         hci_dev_lock(hdev);
4733
4734         err = hci_bdaddr_list_del(&hdev->blacklist, &cp->addr.bdaddr,
4735                                   cp->addr.type);
4736         if (err < 0) {
4737                 status = MGMT_STATUS_INVALID_PARAMS;
4738                 goto done;
4739         }
4740
4741         mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4742                    sk);
4743         status = MGMT_STATUS_SUCCESS;
4744
4745 done:
4746         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
4747                                 &cp->addr, sizeof(cp->addr));
4748
4749         hci_dev_unlock(hdev);
4750
4751         return err;
4752 }
4753
4754 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
4755                          u16 len)
4756 {
4757         struct mgmt_cp_set_device_id *cp = data;
4758         struct hci_request req;
4759         int err;
4760         __u16 source;
4761
4762         BT_DBG("%s", hdev->name);
4763
4764         source = __le16_to_cpu(cp->source);
4765
4766         if (source > 0x0002)
4767                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
4768                                        MGMT_STATUS_INVALID_PARAMS);
4769
4770         hci_dev_lock(hdev);
4771
4772         hdev->devid_source = source;
4773         hdev->devid_vendor = __le16_to_cpu(cp->vendor);
4774         hdev->devid_product = __le16_to_cpu(cp->product);
4775         hdev->devid_version = __le16_to_cpu(cp->version);
4776
4777         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
4778                                 NULL, 0);
4779
4780         hci_req_init(&req, hdev);
4781         update_eir(&req);
4782         hci_req_run(&req, NULL);
4783
4784         hci_dev_unlock(hdev);
4785
4786         return err;
4787 }
4788
4789 static void enable_advertising_instance(struct hci_dev *hdev, u8 status,
4790                                         u16 opcode)
4791 {
4792         BT_DBG("status %d", status);
4793 }
4794
4795 static void set_advertising_complete(struct hci_dev *hdev, u8 status,
4796                                      u16 opcode)
4797 {
4798         struct cmd_lookup match = { NULL, hdev };
4799         struct hci_request req;
4800         u8 instance;
4801         struct adv_info *adv_instance;
4802         int err;
4803
4804         hci_dev_lock(hdev);
4805
4806         if (status) {
4807                 u8 mgmt_err = mgmt_status(status);
4808
4809                 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
4810                                      cmd_status_rsp, &mgmt_err);
4811                 goto unlock;
4812         }
4813
4814         if (hci_dev_test_flag(hdev, HCI_LE_ADV))
4815                 hci_dev_set_flag(hdev, HCI_ADVERTISING);
4816         else
4817                 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
4818
4819         mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
4820                              &match);
4821
4822         new_settings(hdev, match.sk);
4823
4824         if (match.sk)
4825                 sock_put(match.sk);
4826
4827         /* If "Set Advertising" was just disabled and instance advertising was
4828          * set up earlier, then re-enable multi-instance advertising.
4829          */
4830         if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
4831             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) ||
4832             list_empty(&hdev->adv_instances))
4833                 goto unlock;
4834
4835         instance = hdev->cur_adv_instance;
4836         if (!instance) {
4837                 adv_instance = list_first_entry_or_null(&hdev->adv_instances,
4838                                                         struct adv_info, list);
4839                 if (!adv_instance)
4840                         goto unlock;
4841
4842                 instance = adv_instance->instance;
4843         }
4844
4845         hci_req_init(&req, hdev);
4846
4847         err = schedule_adv_instance(&req, instance, true);
4848
4849         if (!err)
4850                 err = hci_req_run(&req, enable_advertising_instance);
4851
4852         if (err)
4853                 BT_ERR("Failed to re-configure advertising");
4854
4855 unlock:
4856         hci_dev_unlock(hdev);
4857 }
4858
4859 static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
4860                            u16 len)
4861 {
4862         struct mgmt_mode *cp = data;
4863         struct mgmt_pending_cmd *cmd;
4864         struct hci_request req;
4865         u8 val, status;
4866         int err;
4867
4868         BT_DBG("request for %s", hdev->name);
4869
4870         status = mgmt_le_support(hdev);
4871         if (status)
4872                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4873                                        status);
4874
4875         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
4876                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4877                                        MGMT_STATUS_INVALID_PARAMS);
4878
4879         hci_dev_lock(hdev);
4880
4881         val = !!cp->val;
4882
4883         /* The following conditions are ones which mean that we should
4884          * not do any HCI communication but directly send a mgmt
4885          * response to user space (after toggling the flag if
4886          * necessary).
4887          */
4888         if (!hdev_is_powered(hdev) ||
4889             (val == hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
4890              (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) ||
4891             hci_conn_num(hdev, LE_LINK) > 0 ||
4892             (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
4893              hdev->le_scan_type == LE_SCAN_ACTIVE)) {
4894                 bool changed;
4895
4896                 if (cp->val) {
4897                         changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
4898                         if (cp->val == 0x02)
4899                                 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4900                         else
4901                                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4902                 } else {
4903                         changed = hci_dev_test_and_clear_flag(hdev, HCI_ADVERTISING);
4904                         hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4905                 }
4906
4907                 err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
4908                 if (err < 0)
4909                         goto unlock;
4910
4911                 if (changed)
4912                         err = new_settings(hdev, sk);
4913
4914                 goto unlock;
4915         }
4916
4917         if (pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
4918             pending_find(MGMT_OP_SET_LE, hdev)) {
4919                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4920                                       MGMT_STATUS_BUSY);
4921                 goto unlock;
4922         }
4923
4924         cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
4925         if (!cmd) {
4926                 err = -ENOMEM;
4927                 goto unlock;
4928         }
4929
4930         hci_req_init(&req, hdev);
4931
4932         if (cp->val == 0x02)
4933                 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4934         else
4935                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4936
4937         cancel_adv_timeout(hdev);
4938
4939         if (val) {
4940                 /* Switch to instance "0" for the Set Advertising setting.
4941                  * We cannot use update_[adv|scan_rsp]_data() here as the
4942                  * HCI_ADVERTISING flag is not yet set.
4943                  */
4944                 update_inst_adv_data(&req, 0x00);
4945                 update_inst_scan_rsp_data(&req, 0x00);
4946                 enable_advertising(&req);
4947         } else {
4948                 disable_advertising(&req);
4949         }
4950
4951         err = hci_req_run(&req, set_advertising_complete);
4952         if (err < 0)
4953                 mgmt_pending_remove(cmd);
4954
4955 unlock:
4956         hci_dev_unlock(hdev);
4957         return err;
4958 }
4959
4960 static int set_static_address(struct sock *sk, struct hci_dev *hdev,
4961                               void *data, u16 len)
4962 {
4963         struct mgmt_cp_set_static_address *cp = data;
4964         int err;
4965
4966         BT_DBG("%s", hdev->name);
4967
4968         if (!lmp_le_capable(hdev))
4969                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4970                                        MGMT_STATUS_NOT_SUPPORTED);
4971
4972         if (hdev_is_powered(hdev))
4973                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4974                                        MGMT_STATUS_REJECTED);
4975
4976         if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
4977                 if (!bacmp(&cp->bdaddr, BDADDR_NONE))
4978                         return mgmt_cmd_status(sk, hdev->id,
4979                                                MGMT_OP_SET_STATIC_ADDRESS,
4980                                                MGMT_STATUS_INVALID_PARAMS);
4981
4982                 /* Two most significant bits shall be set */
4983                 if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
4984                         return mgmt_cmd_status(sk, hdev->id,
4985                                                MGMT_OP_SET_STATIC_ADDRESS,
4986                                                MGMT_STATUS_INVALID_PARAMS);
4987         }
4988
4989         hci_dev_lock(hdev);
4990
4991         bacpy(&hdev->static_addr, &cp->bdaddr);
4992
4993         err = send_settings_rsp(sk, MGMT_OP_SET_STATIC_ADDRESS, hdev);
4994         if (err < 0)
4995                 goto unlock;
4996
4997         err = new_settings(hdev, sk);
4998
4999 unlock:
5000         hci_dev_unlock(hdev);
5001         return err;
5002 }
5003
5004 static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
5005                            void *data, u16 len)
5006 {
5007         struct mgmt_cp_set_scan_params *cp = data;
5008         __u16 interval, window;
5009         int err;
5010
5011         BT_DBG("%s", hdev->name);
5012
5013         if (!lmp_le_capable(hdev))
5014                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5015                                        MGMT_STATUS_NOT_SUPPORTED);
5016
5017         interval = __le16_to_cpu(cp->interval);
5018
5019         if (interval < 0x0004 || interval > 0x4000)
5020                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5021                                        MGMT_STATUS_INVALID_PARAMS);
5022
5023         window = __le16_to_cpu(cp->window);
5024
5025         if (window < 0x0004 || window > 0x4000)
5026                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5027                                        MGMT_STATUS_INVALID_PARAMS);
5028
5029         if (window > interval)
5030                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5031                                        MGMT_STATUS_INVALID_PARAMS);
5032
5033         hci_dev_lock(hdev);
5034
5035         hdev->le_scan_interval = interval;
5036         hdev->le_scan_window = window;
5037
5038         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0,
5039                                 NULL, 0);
5040
5041         /* If background scan is running, restart it so new parameters are
5042          * loaded.
5043          */
5044         if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
5045             hdev->discovery.state == DISCOVERY_STOPPED) {
5046                 struct hci_request req;
5047
5048                 hci_req_init(&req, hdev);
5049
5050                 hci_req_add_le_scan_disable(&req);
5051                 hci_req_add_le_passive_scan(&req);
5052
5053                 hci_req_run(&req, NULL);
5054         }
5055
5056         hci_dev_unlock(hdev);
5057
5058         return err;
5059 }
5060
5061 static void fast_connectable_complete(struct hci_dev *hdev, u8 status,
5062                                       u16 opcode)
5063 {
5064         struct mgmt_pending_cmd *cmd;
5065
5066         BT_DBG("status 0x%02x", status);
5067
5068         hci_dev_lock(hdev);
5069
5070         cmd = pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5071         if (!cmd)
5072                 goto unlock;
5073
5074         if (status) {
5075                 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5076                                 mgmt_status(status));
5077         } else {
5078                 struct mgmt_mode *cp = cmd->param;
5079
5080                 if (cp->val)
5081                         hci_dev_set_flag(hdev, HCI_FAST_CONNECTABLE);
5082                 else
5083                         hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5084
5085                 send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5086                 new_settings(hdev, cmd->sk);
5087         }
5088
5089         mgmt_pending_remove(cmd);
5090
5091 unlock:
5092         hci_dev_unlock(hdev);
5093 }
5094
5095 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
5096                                 void *data, u16 len)
5097 {
5098         struct mgmt_mode *cp = data;
5099         struct mgmt_pending_cmd *cmd;
5100         struct hci_request req;
5101         int err;
5102
5103         BT_DBG("%s", hdev->name);
5104
5105         if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
5106             hdev->hci_ver < BLUETOOTH_VER_1_2)
5107                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5108                                        MGMT_STATUS_NOT_SUPPORTED);
5109
5110         if (cp->val != 0x00 && cp->val != 0x01)
5111                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5112                                        MGMT_STATUS_INVALID_PARAMS);
5113
5114         hci_dev_lock(hdev);
5115
5116         if (pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev)) {
5117                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5118                                       MGMT_STATUS_BUSY);
5119                 goto unlock;
5120         }
5121
5122         if (!!cp->val == hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) {
5123                 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5124                                         hdev);
5125                 goto unlock;
5126         }
5127
5128         if (!hdev_is_powered(hdev)) {
5129                 hci_dev_change_flag(hdev, HCI_FAST_CONNECTABLE);
5130                 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5131                                         hdev);
5132                 new_settings(hdev, sk);
5133                 goto unlock;
5134         }
5135
5136         cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
5137                                data, len);
5138         if (!cmd) {
5139                 err = -ENOMEM;
5140                 goto unlock;
5141         }
5142
5143         hci_req_init(&req, hdev);
5144
5145         write_fast_connectable(&req, cp->val);
5146
5147         err = hci_req_run(&req, fast_connectable_complete);
5148         if (err < 0) {
5149                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5150                                       MGMT_STATUS_FAILED);
5151                 mgmt_pending_remove(cmd);
5152         }
5153
5154 unlock:
5155         hci_dev_unlock(hdev);
5156
5157         return err;
5158 }
5159
5160 static void set_bredr_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5161 {
5162         struct mgmt_pending_cmd *cmd;
5163
5164         BT_DBG("status 0x%02x", status);
5165
5166         hci_dev_lock(hdev);
5167
5168         cmd = pending_find(MGMT_OP_SET_BREDR, hdev);
5169         if (!cmd)
5170                 goto unlock;
5171
5172         if (status) {
5173                 u8 mgmt_err = mgmt_status(status);
5174
5175                 /* We need to restore the flag if related HCI commands
5176                  * failed.
5177                  */
5178                 hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);
5179
5180                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
5181         } else {
5182                 send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
5183                 new_settings(hdev, cmd->sk);
5184         }
5185
5186         mgmt_pending_remove(cmd);
5187
5188 unlock:
5189         hci_dev_unlock(hdev);
5190 }
5191
5192 static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
5193 {
5194         struct mgmt_mode *cp = data;
5195         struct mgmt_pending_cmd *cmd;
5196         struct hci_request req;
5197         int err;
5198
5199         BT_DBG("request for %s", hdev->name);
5200
5201         if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
5202                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5203                                        MGMT_STATUS_NOT_SUPPORTED);
5204
5205         if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5206                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5207                                        MGMT_STATUS_REJECTED);
5208
5209         if (cp->val != 0x00 && cp->val != 0x01)
5210                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5211                                        MGMT_STATUS_INVALID_PARAMS);
5212
5213         hci_dev_lock(hdev);
5214
5215         if (cp->val == hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5216                 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5217                 goto unlock;
5218         }
5219
5220         if (!hdev_is_powered(hdev)) {
5221                 if (!cp->val) {
5222                         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
5223                         hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
5224                         hci_dev_clear_flag(hdev, HCI_LINK_SECURITY);
5225                         hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5226                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
5227                 }
5228
5229                 hci_dev_change_flag(hdev, HCI_BREDR_ENABLED);
5230
5231                 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5232                 if (err < 0)
5233                         goto unlock;
5234
5235                 err = new_settings(hdev, sk);
5236                 goto unlock;
5237         }
5238
5239         /* Reject disabling when powered on */
5240         if (!cp->val) {
5241                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5242                                       MGMT_STATUS_REJECTED);
5243                 goto unlock;
5244         } else {
5245                 /* When configuring a dual-mode controller to operate
5246                  * with LE only and using a static address, then switching
5247                  * BR/EDR back on is not allowed.
5248                  *
5249                  * Dual-mode controllers shall operate with the public
5250                  * address as its identity address for BR/EDR and LE. So
5251                  * reject the attempt to create an invalid configuration.
5252                  *
5253                  * The same restrictions applies when secure connections
5254                  * has been enabled. For BR/EDR this is a controller feature
5255                  * while for LE it is a host stack feature. This means that
5256                  * switching BR/EDR back on when secure connections has been
5257                  * enabled is not a supported transaction.
5258                  */
5259                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5260                     (bacmp(&hdev->static_addr, BDADDR_ANY) ||
5261                      hci_dev_test_flag(hdev, HCI_SC_ENABLED))) {
5262                         err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5263                                               MGMT_STATUS_REJECTED);
5264                         goto unlock;
5265                 }
5266         }
5267
5268         if (pending_find(MGMT_OP_SET_BREDR, hdev)) {
5269                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5270                                       MGMT_STATUS_BUSY);
5271                 goto unlock;
5272         }
5273
5274         cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len);
5275         if (!cmd) {
5276                 err = -ENOMEM;
5277                 goto unlock;
5278         }
5279
5280         /* We need to flip the bit already here so that update_adv_data
5281          * generates the correct flags.
5282          */
5283         hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
5284
5285         hci_req_init(&req, hdev);
5286
5287         write_fast_connectable(&req, false);
5288         __hci_update_page_scan(&req);
5289
5290         /* Since only the advertising data flags will change, there
5291          * is no need to update the scan response data.
5292          */
5293         update_adv_data(&req);
5294
5295         err = hci_req_run(&req, set_bredr_complete);
5296         if (err < 0)
5297                 mgmt_pending_remove(cmd);
5298
5299 unlock:
5300         hci_dev_unlock(hdev);
5301         return err;
5302 }
5303
5304 static void sc_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5305 {
5306         struct mgmt_pending_cmd *cmd;
5307         struct mgmt_mode *cp;
5308
5309         BT_DBG("%s status %u", hdev->name, status);
5310
5311         hci_dev_lock(hdev);
5312
5313         cmd = pending_find(MGMT_OP_SET_SECURE_CONN, hdev);
5314         if (!cmd)
5315                 goto unlock;
5316
5317         if (status) {
5318                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
5319                                 mgmt_status(status));
5320                 goto remove;
5321         }
5322
5323         cp = cmd->param;
5324
5325         switch (cp->val) {
5326         case 0x00:
5327                 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
5328                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5329                 break;
5330         case 0x01:
5331                 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5332                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5333                 break;
5334         case 0x02:
5335                 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5336                 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5337                 break;
5338         }
5339
5340         send_settings_rsp(cmd->sk, MGMT_OP_SET_SECURE_CONN, hdev);
5341         new_settings(hdev, cmd->sk);
5342
5343 remove:
5344         mgmt_pending_remove(cmd);
5345 unlock:
5346         hci_dev_unlock(hdev);
5347 }
5348
5349 static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
5350                            void *data, u16 len)
5351 {
5352         struct mgmt_mode *cp = data;
5353         struct mgmt_pending_cmd *cmd;
5354         struct hci_request req;
5355         u8 val;
5356         int err;
5357
5358         BT_DBG("request for %s", hdev->name);
5359
5360         if (!lmp_sc_capable(hdev) &&
5361             !hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5362                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5363                                        MGMT_STATUS_NOT_SUPPORTED);
5364
5365         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5366             lmp_sc_capable(hdev) &&
5367             !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
5368                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5369                                        MGMT_STATUS_REJECTED);
5370
5371         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5372                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5373                                   MGMT_STATUS_INVALID_PARAMS);
5374
5375         hci_dev_lock(hdev);
5376
5377         if (!hdev_is_powered(hdev) || !lmp_sc_capable(hdev) ||
5378             !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5379                 bool changed;
5380
5381                 if (cp->val) {
5382                         changed = !hci_dev_test_and_set_flag(hdev,
5383                                                              HCI_SC_ENABLED);
5384                         if (cp->val == 0x02)
5385                                 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5386                         else
5387                                 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5388                 } else {
5389                         changed = hci_dev_test_and_clear_flag(hdev,
5390                                                               HCI_SC_ENABLED);
5391                         hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5392                 }
5393
5394                 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5395                 if (err < 0)
5396                         goto failed;
5397
5398                 if (changed)
5399                         err = new_settings(hdev, sk);
5400
5401                 goto failed;
5402         }
5403
5404         if (pending_find(MGMT_OP_SET_SECURE_CONN, hdev)) {
5405                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5406                                       MGMT_STATUS_BUSY);
5407                 goto failed;
5408         }
5409
5410         val = !!cp->val;
5411
5412         if (val == hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
5413             (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5414                 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5415                 goto failed;
5416         }
5417
5418         cmd = mgmt_pending_add(sk, MGMT_OP_SET_SECURE_CONN, hdev, data, len);
5419         if (!cmd) {
5420                 err = -ENOMEM;
5421                 goto failed;
5422         }
5423
5424         hci_req_init(&req, hdev);
5425         hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
5426         err = hci_req_run(&req, sc_enable_complete);
5427         if (err < 0) {
5428                 mgmt_pending_remove(cmd);
5429                 goto failed;
5430         }
5431
5432 failed:
5433         hci_dev_unlock(hdev);
5434         return err;
5435 }
5436
5437 static int set_debug_keys(struct sock *sk, struct hci_dev *hdev,
5438                           void *data, u16 len)
5439 {
5440         struct mgmt_mode *cp = data;
5441         bool changed, use_changed;
5442         int err;
5443
5444         BT_DBG("request for %s", hdev->name);
5445
5446         if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5447                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEBUG_KEYS,
5448                                        MGMT_STATUS_INVALID_PARAMS);
5449
5450         hci_dev_lock(hdev);
5451
5452         if (cp->val)
5453                 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
5454         else
5455                 changed = hci_dev_test_and_clear_flag(hdev,
5456                                                       HCI_KEEP_DEBUG_KEYS);
5457
5458         if (cp->val == 0x02)
5459                 use_changed = !hci_dev_test_and_set_flag(hdev,
5460                                                          HCI_USE_DEBUG_KEYS);
5461         else
5462                 use_changed = hci_dev_test_and_clear_flag(hdev,
5463                                                           HCI_USE_DEBUG_KEYS);
5464
5465         if (hdev_is_powered(hdev) && use_changed &&
5466             hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
5467                 u8 mode = (cp->val == 0x02) ? 0x01 : 0x00;
5468                 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
5469                              sizeof(mode), &mode);
5470         }
5471
5472         err = send_settings_rsp(sk, MGMT_OP_SET_DEBUG_KEYS, hdev);
5473         if (err < 0)
5474                 goto unlock;
5475
5476         if (changed)
5477                 err = new_settings(hdev, sk);
5478
5479 unlock:
5480         hci_dev_unlock(hdev);
5481         return err;
5482 }
5483
5484 static int set_privacy(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5485                        u16 len)
5486 {
5487         struct mgmt_cp_set_privacy *cp = cp_data;
5488         bool changed;
5489         int err;
5490
5491         BT_DBG("request for %s", hdev->name);
5492
5493         if (!lmp_le_capable(hdev))
5494                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5495                                        MGMT_STATUS_NOT_SUPPORTED);
5496
5497         if (cp->privacy != 0x00 && cp->privacy != 0x01)
5498                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5499                                        MGMT_STATUS_INVALID_PARAMS);
5500
5501         if (hdev_is_powered(hdev))
5502                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5503                                        MGMT_STATUS_REJECTED);
5504
5505         hci_dev_lock(hdev);
5506
5507         /* If user space supports this command it is also expected to
5508          * handle IRKs. Therefore, set the HCI_RPA_RESOLVING flag.
5509          */
5510         hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5511
5512         if (cp->privacy) {
5513                 changed = !hci_dev_test_and_set_flag(hdev, HCI_PRIVACY);
5514                 memcpy(hdev->irk, cp->irk, sizeof(hdev->irk));
5515                 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
5516         } else {
5517                 changed = hci_dev_test_and_clear_flag(hdev, HCI_PRIVACY);
5518                 memset(hdev->irk, 0, sizeof(hdev->irk));
5519                 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
5520         }
5521
5522         err = send_settings_rsp(sk, MGMT_OP_SET_PRIVACY, hdev);
5523         if (err < 0)
5524                 goto unlock;
5525
5526         if (changed)
5527                 err = new_settings(hdev, sk);
5528
5529 unlock:
5530         hci_dev_unlock(hdev);
5531         return err;
5532 }
5533
5534 static bool irk_is_valid(struct mgmt_irk_info *irk)
5535 {
5536         switch (irk->addr.type) {
5537         case BDADDR_LE_PUBLIC:
5538                 return true;
5539
5540         case BDADDR_LE_RANDOM:
5541                 /* Two most significant bits shall be set */
5542                 if ((irk->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5543                         return false;
5544                 return true;
5545         }
5546
5547         return false;
5548 }
5549
5550 static int load_irks(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5551                      u16 len)
5552 {
5553         struct mgmt_cp_load_irks *cp = cp_data;
5554         const u16 max_irk_count = ((U16_MAX - sizeof(*cp)) /
5555                                    sizeof(struct mgmt_irk_info));
5556         u16 irk_count, expected_len;
5557         int i, err;
5558
5559         BT_DBG("request for %s", hdev->name);
5560
5561         if (!lmp_le_capable(hdev))
5562                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5563                                        MGMT_STATUS_NOT_SUPPORTED);
5564
5565         irk_count = __le16_to_cpu(cp->irk_count);
5566         if (irk_count > max_irk_count) {
5567                 BT_ERR("load_irks: too big irk_count value %u", irk_count);
5568                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5569                                        MGMT_STATUS_INVALID_PARAMS);
5570         }
5571
5572         expected_len = sizeof(*cp) + irk_count * sizeof(struct mgmt_irk_info);
5573         if (expected_len != len) {
5574                 BT_ERR("load_irks: expected %u bytes, got %u bytes",
5575                        expected_len, len);
5576                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5577                                        MGMT_STATUS_INVALID_PARAMS);
5578         }
5579
5580         BT_DBG("%s irk_count %u", hdev->name, irk_count);
5581
5582         for (i = 0; i < irk_count; i++) {
5583                 struct mgmt_irk_info *key = &cp->irks[i];
5584
5585                 if (!irk_is_valid(key))
5586                         return mgmt_cmd_status(sk, hdev->id,
5587                                                MGMT_OP_LOAD_IRKS,
5588                                                MGMT_STATUS_INVALID_PARAMS);
5589         }
5590
5591         hci_dev_lock(hdev);
5592
5593         hci_smp_irks_clear(hdev);
5594
5595         for (i = 0; i < irk_count; i++) {
5596                 struct mgmt_irk_info *irk = &cp->irks[i];
5597                 u8 addr_type;
5598
5599                 if (irk->addr.type == BDADDR_LE_PUBLIC)
5600                         addr_type = ADDR_LE_DEV_PUBLIC;
5601                 else
5602                         addr_type = ADDR_LE_DEV_RANDOM;
5603
5604                 hci_add_irk(hdev, &irk->addr.bdaddr, addr_type, irk->val,
5605                             BDADDR_ANY);
5606         }
5607
5608         hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5609
5610         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_IRKS, 0, NULL, 0);
5611
5612         hci_dev_unlock(hdev);
5613
5614         return err;
5615 }
5616
5617 static bool ltk_is_valid(struct mgmt_ltk_info *key)
5618 {
5619         if (key->master != 0x00 && key->master != 0x01)
5620                 return false;
5621
5622         switch (key->addr.type) {
5623         case BDADDR_LE_PUBLIC:
5624                 return true;
5625
5626         case BDADDR_LE_RANDOM:
5627                 /* Two most significant bits shall be set */
5628                 if ((key->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5629                         return false;
5630                 return true;
5631         }
5632
5633         return false;
5634 }
5635
5636 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
5637                                void *cp_data, u16 len)
5638 {
5639         struct mgmt_cp_load_long_term_keys *cp = cp_data;
5640         const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
5641                                    sizeof(struct mgmt_ltk_info));
5642         u16 key_count, expected_len;
5643         int i, err;
5644
5645         BT_DBG("request for %s", hdev->name);
5646
5647         if (!lmp_le_capable(hdev))
5648                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5649                                        MGMT_STATUS_NOT_SUPPORTED);
5650
5651         key_count = __le16_to_cpu(cp->key_count);
5652         if (key_count > max_key_count) {
5653                 BT_ERR("load_ltks: too big key_count value %u", key_count);
5654                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5655                                        MGMT_STATUS_INVALID_PARAMS);
5656         }
5657
5658         expected_len = sizeof(*cp) + key_count *
5659                                         sizeof(struct mgmt_ltk_info);
5660         if (expected_len != len) {
5661                 BT_ERR("load_keys: expected %u bytes, got %u bytes",
5662                        expected_len, len);
5663                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5664                                        MGMT_STATUS_INVALID_PARAMS);
5665         }
5666
5667         BT_DBG("%s key_count %u", hdev->name, key_count);
5668
5669         for (i = 0; i < key_count; i++) {
5670                 struct mgmt_ltk_info *key = &cp->keys[i];
5671
5672                 if (!ltk_is_valid(key))
5673                         return mgmt_cmd_status(sk, hdev->id,
5674                                                MGMT_OP_LOAD_LONG_TERM_KEYS,
5675                                                MGMT_STATUS_INVALID_PARAMS);
5676         }
5677
5678         hci_dev_lock(hdev);
5679
5680         hci_smp_ltks_clear(hdev);
5681
5682         for (i = 0; i < key_count; i++) {
5683                 struct mgmt_ltk_info *key = &cp->keys[i];
5684                 u8 type, addr_type, authenticated;
5685
5686                 if (key->addr.type == BDADDR_LE_PUBLIC)
5687                         addr_type = ADDR_LE_DEV_PUBLIC;
5688                 else
5689                         addr_type = ADDR_LE_DEV_RANDOM;
5690
5691                 switch (key->type) {
5692                 case MGMT_LTK_UNAUTHENTICATED:
5693                         authenticated = 0x00;
5694                         type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5695                         break;
5696                 case MGMT_LTK_AUTHENTICATED:
5697                         authenticated = 0x01;
5698                         type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5699                         break;
5700                 case MGMT_LTK_P256_UNAUTH:
5701                         authenticated = 0x00;
5702                         type = SMP_LTK_P256;
5703                         break;
5704                 case MGMT_LTK_P256_AUTH:
5705                         authenticated = 0x01;
5706                         type = SMP_LTK_P256;
5707                         break;
5708                 case MGMT_LTK_P256_DEBUG:
5709                         authenticated = 0x00;
5710                         type = SMP_LTK_P256_DEBUG;
5711                 default:
5712                         continue;
5713                 }
5714
5715                 hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
5716                             authenticated, key->val, key->enc_size, key->ediv,
5717                             key->rand);
5718         }
5719
5720         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 0,
5721                            NULL, 0);
5722
5723         hci_dev_unlock(hdev);
5724
5725         return err;
5726 }
5727
5728 static int conn_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5729 {
5730         struct hci_conn *conn = cmd->user_data;
5731         struct mgmt_rp_get_conn_info rp;
5732         int err;
5733
5734         memcpy(&rp.addr, cmd->param, sizeof(rp.addr));
5735
5736         if (status == MGMT_STATUS_SUCCESS) {
5737                 rp.rssi = conn->rssi;
5738                 rp.tx_power = conn->tx_power;
5739                 rp.max_tx_power = conn->max_tx_power;
5740         } else {
5741                 rp.rssi = HCI_RSSI_INVALID;
5742                 rp.tx_power = HCI_TX_POWER_INVALID;
5743                 rp.max_tx_power = HCI_TX_POWER_INVALID;
5744         }
5745
5746         err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO,
5747                                 status, &rp, sizeof(rp));
5748
5749         hci_conn_drop(conn);
5750         hci_conn_put(conn);
5751
5752         return err;
5753 }
5754
5755 static void conn_info_refresh_complete(struct hci_dev *hdev, u8 hci_status,
5756                                        u16 opcode)
5757 {
5758         struct hci_cp_read_rssi *cp;
5759         struct mgmt_pending_cmd *cmd;
5760         struct hci_conn *conn;
5761         u16 handle;
5762         u8 status;
5763
5764         BT_DBG("status 0x%02x", hci_status);
5765
5766         hci_dev_lock(hdev);
5767
5768         /* Commands sent in request are either Read RSSI or Read Transmit Power
5769          * Level so we check which one was last sent to retrieve connection
5770          * handle.  Both commands have handle as first parameter so it's safe to
5771          * cast data on the same command struct.
5772          *
5773          * First command sent is always Read RSSI and we fail only if it fails.
5774          * In other case we simply override error to indicate success as we
5775          * already remembered if TX power value is actually valid.
5776          */
5777         cp = hci_sent_cmd_data(hdev, HCI_OP_READ_RSSI);
5778         if (!cp) {
5779                 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
5780                 status = MGMT_STATUS_SUCCESS;
5781         } else {
5782                 status = mgmt_status(hci_status);
5783         }
5784
5785         if (!cp) {
5786                 BT_ERR("invalid sent_cmd in conn_info response");
5787                 goto unlock;
5788         }
5789
5790         handle = __le16_to_cpu(cp->handle);
5791         conn = hci_conn_hash_lookup_handle(hdev, handle);
5792         if (!conn) {
5793                 BT_ERR("unknown handle (%d) in conn_info response", handle);
5794                 goto unlock;
5795         }
5796
5797         cmd = pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn);
5798         if (!cmd)
5799                 goto unlock;
5800
5801         cmd->cmd_complete(cmd, status);
5802         mgmt_pending_remove(cmd);
5803
5804 unlock:
5805         hci_dev_unlock(hdev);
5806 }
5807
5808 static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
5809                          u16 len)
5810 {
5811         struct mgmt_cp_get_conn_info *cp = data;
5812         struct mgmt_rp_get_conn_info rp;
5813         struct hci_conn *conn;
5814         unsigned long conn_info_age;
5815         int err = 0;
5816
5817         BT_DBG("%s", hdev->name);
5818
5819         memset(&rp, 0, sizeof(rp));
5820         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
5821         rp.addr.type = cp->addr.type;
5822
5823         if (!bdaddr_type_is_valid(cp->addr.type))
5824                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5825                                          MGMT_STATUS_INVALID_PARAMS,
5826                                          &rp, sizeof(rp));
5827
5828         hci_dev_lock(hdev);
5829
5830         if (!hdev_is_powered(hdev)) {
5831                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5832                                         MGMT_STATUS_NOT_POWERED, &rp,
5833                                         sizeof(rp));
5834                 goto unlock;
5835         }
5836
5837         if (cp->addr.type == BDADDR_BREDR)
5838                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
5839                                                &cp->addr.bdaddr);
5840         else
5841                 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
5842
5843         if (!conn || conn->state != BT_CONNECTED) {
5844                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5845                                         MGMT_STATUS_NOT_CONNECTED, &rp,
5846                                         sizeof(rp));
5847                 goto unlock;
5848         }
5849
5850         if (pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn)) {
5851                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5852                                         MGMT_STATUS_BUSY, &rp, sizeof(rp));
5853                 goto unlock;
5854         }
5855
5856         /* To avoid client trying to guess when to poll again for information we
5857          * calculate conn info age as random value between min/max set in hdev.
5858          */
5859         conn_info_age = hdev->conn_info_min_age +
5860                         prandom_u32_max(hdev->conn_info_max_age -
5861                                         hdev->conn_info_min_age);
5862
5863         /* Query controller to refresh cached values if they are too old or were
5864          * never read.
5865          */
5866         if (time_after(jiffies, conn->conn_info_timestamp +
5867                        msecs_to_jiffies(conn_info_age)) ||
5868             !conn->conn_info_timestamp) {
5869                 struct hci_request req;
5870                 struct hci_cp_read_tx_power req_txp_cp;
5871                 struct hci_cp_read_rssi req_rssi_cp;
5872                 struct mgmt_pending_cmd *cmd;
5873
5874                 hci_req_init(&req, hdev);
5875                 req_rssi_cp.handle = cpu_to_le16(conn->handle);
5876                 hci_req_add(&req, HCI_OP_READ_RSSI, sizeof(req_rssi_cp),
5877                             &req_rssi_cp);
5878
5879                 /* For LE links TX power does not change thus we don't need to
5880                  * query for it once value is known.
5881                  */
5882                 if (!bdaddr_type_is_le(cp->addr.type) ||
5883                     conn->tx_power == HCI_TX_POWER_INVALID) {
5884                         req_txp_cp.handle = cpu_to_le16(conn->handle);
5885                         req_txp_cp.type = 0x00;
5886                         hci_req_add(&req, HCI_OP_READ_TX_POWER,
5887                                     sizeof(req_txp_cp), &req_txp_cp);
5888                 }
5889
5890                 /* Max TX power needs to be read only once per connection */
5891                 if (conn->max_tx_power == HCI_TX_POWER_INVALID) {
5892                         req_txp_cp.handle = cpu_to_le16(conn->handle);
5893                         req_txp_cp.type = 0x01;
5894                         hci_req_add(&req, HCI_OP_READ_TX_POWER,
5895                                     sizeof(req_txp_cp), &req_txp_cp);
5896                 }
5897
5898                 err = hci_req_run(&req, conn_info_refresh_complete);
5899                 if (err < 0)
5900                         goto unlock;
5901
5902                 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CONN_INFO, hdev,
5903                                        data, len);
5904                 if (!cmd) {
5905                         err = -ENOMEM;
5906                         goto unlock;
5907                 }
5908
5909                 hci_conn_hold(conn);
5910                 cmd->user_data = hci_conn_get(conn);
5911                 cmd->cmd_complete = conn_info_cmd_complete;
5912
5913                 conn->conn_info_timestamp = jiffies;
5914         } else {
5915                 /* Cache is valid, just reply with values cached in hci_conn */
5916                 rp.rssi = conn->rssi;
5917                 rp.tx_power = conn->tx_power;
5918                 rp.max_tx_power = conn->max_tx_power;
5919
5920                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5921                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
5922         }
5923
5924 unlock:
5925         hci_dev_unlock(hdev);
5926         return err;
5927 }
5928
5929 static int clock_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5930 {
5931         struct hci_conn *conn = cmd->user_data;
5932         struct mgmt_rp_get_clock_info rp;
5933         struct hci_dev *hdev;
5934         int err;
5935
5936         memset(&rp, 0, sizeof(rp));
5937         memcpy(&rp.addr, &cmd->param, sizeof(rp.addr));
5938
5939         if (status)
5940                 goto complete;
5941
5942         hdev = hci_dev_get(cmd->index);
5943         if (hdev) {
5944                 rp.local_clock = cpu_to_le32(hdev->clock);
5945                 hci_dev_put(hdev);
5946         }
5947
5948         if (conn) {
5949                 rp.piconet_clock = cpu_to_le32(conn->clock);
5950                 rp.accuracy = cpu_to_le16(conn->clock_accuracy);
5951         }
5952
5953 complete:
5954         err = mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status, &rp,
5955                                 sizeof(rp));
5956
5957         if (conn) {
5958                 hci_conn_drop(conn);
5959                 hci_conn_put(conn);
5960         }
5961
5962         return err;
5963 }
5964
5965 static void get_clock_info_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5966 {
5967         struct hci_cp_read_clock *hci_cp;
5968         struct mgmt_pending_cmd *cmd;
5969         struct hci_conn *conn;
5970
5971         BT_DBG("%s status %u", hdev->name, status);
5972
5973         hci_dev_lock(hdev);
5974
5975         hci_cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
5976         if (!hci_cp)
5977                 goto unlock;
5978
5979         if (hci_cp->which) {
5980                 u16 handle = __le16_to_cpu(hci_cp->handle);
5981                 conn = hci_conn_hash_lookup_handle(hdev, handle);
5982         } else {
5983                 conn = NULL;
5984         }
5985
5986         cmd = pending_find_data(MGMT_OP_GET_CLOCK_INFO, hdev, conn);
5987         if (!cmd)
5988                 goto unlock;
5989
5990         cmd->cmd_complete(cmd, mgmt_status(status));
5991         mgmt_pending_remove(cmd);
5992
5993 unlock:
5994         hci_dev_unlock(hdev);
5995 }
5996
5997 static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
5998                          u16 len)
5999 {
6000         struct mgmt_cp_get_clock_info *cp = data;
6001         struct mgmt_rp_get_clock_info rp;
6002         struct hci_cp_read_clock hci_cp;
6003         struct mgmt_pending_cmd *cmd;
6004         struct hci_request req;
6005         struct hci_conn *conn;
6006         int err;
6007
6008         BT_DBG("%s", hdev->name);
6009
6010         memset(&rp, 0, sizeof(rp));
6011         bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
6012         rp.addr.type = cp->addr.type;
6013
6014         if (cp->addr.type != BDADDR_BREDR)
6015                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6016                                          MGMT_STATUS_INVALID_PARAMS,
6017                                          &rp, sizeof(rp));
6018
6019         hci_dev_lock(hdev);
6020
6021         if (!hdev_is_powered(hdev)) {
6022                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6023                                         MGMT_STATUS_NOT_POWERED, &rp,
6024                                         sizeof(rp));
6025                 goto unlock;
6026         }
6027
6028         if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6029                 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
6030                                                &cp->addr.bdaddr);
6031                 if (!conn || conn->state != BT_CONNECTED) {
6032                         err = mgmt_cmd_complete(sk, hdev->id,
6033                                                 MGMT_OP_GET_CLOCK_INFO,
6034                                                 MGMT_STATUS_NOT_CONNECTED,
6035                                                 &rp, sizeof(rp));
6036                         goto unlock;
6037                 }
6038         } else {
6039                 conn = NULL;
6040         }
6041
6042         cmd = mgmt_pending_add(sk, MGMT_OP_GET_CLOCK_INFO, hdev, data, len);
6043         if (!cmd) {
6044                 err = -ENOMEM;
6045                 goto unlock;
6046         }
6047
6048         cmd->cmd_complete = clock_info_cmd_complete;
6049
6050         hci_req_init(&req, hdev);
6051
6052         memset(&hci_cp, 0, sizeof(hci_cp));
6053         hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6054
6055         if (conn) {
6056                 hci_conn_hold(conn);
6057                 cmd->user_data = hci_conn_get(conn);
6058
6059                 hci_cp.handle = cpu_to_le16(conn->handle);
6060                 hci_cp.which = 0x01; /* Piconet clock */
6061                 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6062         }
6063
6064         err = hci_req_run(&req, get_clock_info_complete);
6065         if (err < 0)
6066                 mgmt_pending_remove(cmd);
6067
6068 unlock:
6069         hci_dev_unlock(hdev);
6070         return err;
6071 }
6072
6073 static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
6074 {
6075         struct hci_conn *conn;
6076
6077         conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
6078         if (!conn)
6079                 return false;
6080
6081         if (conn->dst_type != type)
6082                 return false;
6083
6084         if (conn->state != BT_CONNECTED)
6085                 return false;
6086
6087         return true;
6088 }
6089
6090 /* This function requires the caller holds hdev->lock */
6091 static int hci_conn_params_set(struct hci_request *req, bdaddr_t *addr,
6092                                u8 addr_type, u8 auto_connect)
6093 {
6094         struct hci_dev *hdev = req->hdev;
6095         struct hci_conn_params *params;
6096
6097         params = hci_conn_params_add(hdev, addr, addr_type);
6098         if (!params)
6099                 return -EIO;
6100
6101         if (params->auto_connect == auto_connect)
6102                 return 0;
6103
6104         list_del_init(&params->action);
6105
6106         switch (auto_connect) {
6107         case HCI_AUTO_CONN_DISABLED:
6108         case HCI_AUTO_CONN_LINK_LOSS:
6109                 __hci_update_background_scan(req);
6110                 break;
6111         case HCI_AUTO_CONN_REPORT:
6112                 list_add(&params->action, &hdev->pend_le_reports);
6113                 __hci_update_background_scan(req);
6114                 break;
6115         case HCI_AUTO_CONN_DIRECT:
6116         case HCI_AUTO_CONN_ALWAYS:
6117                 if (!is_connected(hdev, addr, addr_type)) {
6118                         list_add(&params->action, &hdev->pend_le_conns);
6119                         __hci_update_background_scan(req);
6120                 }
6121                 break;
6122         }
6123
6124         params->auto_connect = auto_connect;
6125
6126         BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
6127                auto_connect);
6128
6129         return 0;
6130 }
6131
6132 static void device_added(struct sock *sk, struct hci_dev *hdev,
6133                          bdaddr_t *bdaddr, u8 type, u8 action)
6134 {
6135         struct mgmt_ev_device_added ev;
6136
6137         bacpy(&ev.addr.bdaddr, bdaddr);
6138         ev.addr.type = type;
6139         ev.action = action;
6140
6141         mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
6142 }
6143
6144 static void add_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6145 {
6146         struct mgmt_pending_cmd *cmd;
6147
6148         BT_DBG("status 0x%02x", status);
6149
6150         hci_dev_lock(hdev);
6151
6152         cmd = pending_find(MGMT_OP_ADD_DEVICE, hdev);
6153         if (!cmd)
6154                 goto unlock;
6155
6156         cmd->cmd_complete(cmd, mgmt_status(status));
6157         mgmt_pending_remove(cmd);
6158
6159 unlock:
6160         hci_dev_unlock(hdev);
6161 }
6162
6163 static int add_device(struct sock *sk, struct hci_dev *hdev,
6164                       void *data, u16 len)
6165 {
6166         struct mgmt_cp_add_device *cp = data;
6167         struct mgmt_pending_cmd *cmd;
6168         struct hci_request req;
6169         u8 auto_conn, addr_type;
6170         int err;
6171
6172         BT_DBG("%s", hdev->name);
6173
6174         if (!bdaddr_type_is_valid(cp->addr.type) ||
6175             !bacmp(&cp->addr.bdaddr, BDADDR_ANY))
6176                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6177                                          MGMT_STATUS_INVALID_PARAMS,
6178                                          &cp->addr, sizeof(cp->addr));
6179
6180         if (cp->action != 0x00 && cp->action != 0x01 && cp->action != 0x02)
6181                 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6182                                          MGMT_STATUS_INVALID_PARAMS,
6183                                          &cp->addr, sizeof(cp->addr));
6184
6185         hci_req_init(&req, hdev);
6186
6187         hci_dev_lock(hdev);
6188
6189         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_DEVICE, hdev, data, len);
6190         if (!cmd) {
6191                 err = -ENOMEM;
6192                 goto unlock;
6193         }
6194
6195         cmd->cmd_complete = addr_cmd_complete;
6196
6197         if (cp->addr.type == BDADDR_BREDR) {
6198                 /* Only incoming connections action is supported for now */
6199                 if (cp->action != 0x01) {
6200                         err = cmd->cmd_complete(cmd,
6201                                                 MGMT_STATUS_INVALID_PARAMS);
6202                         mgmt_pending_remove(cmd);
6203                         goto unlock;
6204                 }
6205
6206                 err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
6207                                           cp->addr.type);
6208                 if (err)
6209                         goto unlock;
6210
6211                 __hci_update_page_scan(&req);
6212
6213                 goto added;
6214         }
6215
6216         if (cp->addr.type == BDADDR_LE_PUBLIC)
6217                 addr_type = ADDR_LE_DEV_PUBLIC;
6218         else
6219                 addr_type = ADDR_LE_DEV_RANDOM;
6220
6221         if (cp->action == 0x02)
6222                 auto_conn = HCI_AUTO_CONN_ALWAYS;
6223         else if (cp->action == 0x01)
6224                 auto_conn = HCI_AUTO_CONN_DIRECT;
6225         else
6226                 auto_conn = HCI_AUTO_CONN_REPORT;
6227
6228         /* If the connection parameters don't exist for this device,
6229          * they will be created and configured with defaults.
6230          */
6231         if (hci_conn_params_set(&req, &cp->addr.bdaddr, addr_type,
6232                                 auto_conn) < 0) {
6233                 err = cmd->cmd_complete(cmd, MGMT_STATUS_FAILED);
6234                 mgmt_pending_remove(cmd);
6235                 goto unlock;
6236         }
6237
6238 added:
6239         device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
6240
6241         err = hci_req_run(&req, add_device_complete);
6242         if (err < 0) {
6243                 /* ENODATA means no HCI commands were needed (e.g. if
6244                  * the adapter is powered off).
6245                  */
6246                 if (err == -ENODATA)
6247                         err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6248                 mgmt_pending_remove(cmd);
6249         }
6250
6251 unlock:
6252         hci_dev_unlock(hdev);
6253         return err;
6254 }
6255
6256 static void device_removed(struct sock *sk, struct hci_dev *hdev,
6257                            bdaddr_t *bdaddr, u8 type)
6258 {
6259         struct mgmt_ev_device_removed ev;
6260
6261         bacpy(&ev.addr.bdaddr, bdaddr);
6262         ev.addr.type = type;
6263
6264         mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
6265 }
6266
6267 static void remove_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6268 {
6269         struct mgmt_pending_cmd *cmd;
6270
6271         BT_DBG("status 0x%02x", status);
6272
6273         hci_dev_lock(hdev);
6274
6275         cmd = pending_find(MGMT_OP_REMOVE_DEVICE, hdev);
6276         if (!cmd)
6277                 goto unlock;
6278
6279         cmd->cmd_complete(cmd, mgmt_status(status));
6280         mgmt_pending_remove(cmd);
6281
6282 unlock:
6283         hci_dev_unlock(hdev);
6284 }
6285
6286 static int remove_device(struct sock *sk, struct hci_dev *hdev,
6287                          void *data, u16 len)
6288 {
6289         struct mgmt_cp_remove_device *cp = data;
6290         struct mgmt_pending_cmd *cmd;
6291         struct hci_request req;
6292         int err;
6293
6294         BT_DBG("%s", hdev->name);
6295
6296         hci_req_init(&req, hdev);
6297
6298         hci_dev_lock(hdev);
6299
6300         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_DEVICE, hdev, data, len);
6301         if (!cmd) {
6302                 err = -ENOMEM;
6303                 goto unlock;
6304         }
6305
6306         cmd->cmd_complete = addr_cmd_complete;
6307
6308         if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6309                 struct hci_conn_params *params;
6310                 u8 addr_type;
6311
6312                 if (!bdaddr_type_is_valid(cp->addr.type)) {
6313                         err = cmd->cmd_complete(cmd,
6314                                                 MGMT_STATUS_INVALID_PARAMS);
6315                         mgmt_pending_remove(cmd);
6316                         goto unlock;
6317                 }
6318
6319                 if (cp->addr.type == BDADDR_BREDR) {
6320                         err = hci_bdaddr_list_del(&hdev->whitelist,
6321                                                   &cp->addr.bdaddr,
6322                                                   cp->addr.type);
6323                         if (err) {
6324                                 err = cmd->cmd_complete(cmd,
6325                                                         MGMT_STATUS_INVALID_PARAMS);
6326                                 mgmt_pending_remove(cmd);
6327                                 goto unlock;
6328                         }
6329
6330                         __hci_update_page_scan(&req);
6331
6332                         device_removed(sk, hdev, &cp->addr.bdaddr,
6333                                        cp->addr.type);
6334                         goto complete;
6335                 }
6336
6337                 if (cp->addr.type == BDADDR_LE_PUBLIC)
6338                         addr_type = ADDR_LE_DEV_PUBLIC;
6339                 else
6340                         addr_type = ADDR_LE_DEV_RANDOM;
6341
6342                 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
6343                                                 addr_type);
6344                 if (!params) {
6345                         err = cmd->cmd_complete(cmd,
6346                                                 MGMT_STATUS_INVALID_PARAMS);
6347                         mgmt_pending_remove(cmd);
6348                         goto unlock;
6349                 }
6350
6351                 if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
6352                         err = cmd->cmd_complete(cmd,
6353                                                 MGMT_STATUS_INVALID_PARAMS);
6354                         mgmt_pending_remove(cmd);
6355                         goto unlock;
6356                 }
6357
6358                 list_del(&params->action);
6359                 list_del(&params->list);
6360                 kfree(params);
6361                 __hci_update_background_scan(&req);
6362
6363                 device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
6364         } else {
6365                 struct hci_conn_params *p, *tmp;
6366                 struct bdaddr_list *b, *btmp;
6367
6368                 if (cp->addr.type) {
6369                         err = cmd->cmd_complete(cmd,
6370                                                 MGMT_STATUS_INVALID_PARAMS);
6371                         mgmt_pending_remove(cmd);
6372                         goto unlock;
6373                 }
6374
6375                 list_for_each_entry_safe(b, btmp, &hdev->whitelist, list) {
6376                         device_removed(sk, hdev, &b->bdaddr, b->bdaddr_type);
6377                         list_del(&b->list);
6378                         kfree(b);
6379                 }
6380
6381                 __hci_update_page_scan(&req);
6382
6383                 list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
6384                         if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
6385                                 continue;
6386                         device_removed(sk, hdev, &p->addr, p->addr_type);
6387                         list_del(&p->action);
6388                         list_del(&p->list);
6389                         kfree(p);
6390                 }
6391
6392                 BT_DBG("All LE connection parameters were removed");
6393
6394                 __hci_update_background_scan(&req);
6395         }
6396
6397 complete:
6398         err = hci_req_run(&req, remove_device_complete);
6399         if (err < 0) {
6400                 /* ENODATA means no HCI commands were needed (e.g. if
6401                  * the adapter is powered off).
6402                  */
6403                 if (err == -ENODATA)
6404                         err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6405                 mgmt_pending_remove(cmd);
6406         }
6407
6408 unlock:
6409         hci_dev_unlock(hdev);
6410         return err;
6411 }
6412
6413 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
6414                            u16 len)
6415 {
6416         struct mgmt_cp_load_conn_param *cp = data;
6417         const u16 max_param_count = ((U16_MAX - sizeof(*cp)) /
6418                                      sizeof(struct mgmt_conn_param));
6419         u16 param_count, expected_len;
6420         int i;
6421
6422         if (!lmp_le_capable(hdev))
6423                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6424                                        MGMT_STATUS_NOT_SUPPORTED);
6425
6426         param_count = __le16_to_cpu(cp->param_count);
6427         if (param_count > max_param_count) {
6428                 BT_ERR("load_conn_param: too big param_count value %u",
6429                        param_count);
6430                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6431                                        MGMT_STATUS_INVALID_PARAMS);
6432         }
6433
6434         expected_len = sizeof(*cp) + param_count *
6435                                         sizeof(struct mgmt_conn_param);
6436         if (expected_len != len) {
6437                 BT_ERR("load_conn_param: expected %u bytes, got %u bytes",
6438                        expected_len, len);
6439                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6440                                        MGMT_STATUS_INVALID_PARAMS);
6441         }
6442
6443         BT_DBG("%s param_count %u", hdev->name, param_count);
6444
6445         hci_dev_lock(hdev);
6446
6447         hci_conn_params_clear_disabled(hdev);
6448
6449         for (i = 0; i < param_count; i++) {
6450                 struct mgmt_conn_param *param = &cp->params[i];
6451                 struct hci_conn_params *hci_param;
6452                 u16 min, max, latency, timeout;
6453                 u8 addr_type;
6454
6455                 BT_DBG("Adding %pMR (type %u)", &param->addr.bdaddr,
6456                        param->addr.type);
6457
6458                 if (param->addr.type == BDADDR_LE_PUBLIC) {
6459                         addr_type = ADDR_LE_DEV_PUBLIC;
6460                 } else if (param->addr.type == BDADDR_LE_RANDOM) {
6461                         addr_type = ADDR_LE_DEV_RANDOM;
6462                 } else {
6463                         BT_ERR("Ignoring invalid connection parameters");
6464                         continue;
6465                 }
6466
6467                 min = le16_to_cpu(param->min_interval);
6468                 max = le16_to_cpu(param->max_interval);
6469                 latency = le16_to_cpu(param->latency);
6470                 timeout = le16_to_cpu(param->timeout);
6471
6472                 BT_DBG("min 0x%04x max 0x%04x latency 0x%04x timeout 0x%04x",
6473                        min, max, latency, timeout);
6474
6475                 if (hci_check_conn_params(min, max, latency, timeout) < 0) {
6476                         BT_ERR("Ignoring invalid connection parameters");
6477                         continue;
6478                 }
6479
6480                 hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
6481                                                 addr_type);
6482                 if (!hci_param) {
6483                         BT_ERR("Failed to add connection parameters");
6484                         continue;
6485                 }
6486
6487                 hci_param->conn_min_interval = min;
6488                 hci_param->conn_max_interval = max;
6489                 hci_param->conn_latency = latency;
6490                 hci_param->supervision_timeout = timeout;
6491         }
6492
6493         hci_dev_unlock(hdev);
6494
6495         return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM, 0,
6496                                  NULL, 0);
6497 }
6498
6499 static int set_external_config(struct sock *sk, struct hci_dev *hdev,
6500                                void *data, u16 len)
6501 {
6502         struct mgmt_cp_set_external_config *cp = data;
6503         bool changed;
6504         int err;
6505
6506         BT_DBG("%s", hdev->name);
6507
6508         if (hdev_is_powered(hdev))
6509                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6510                                        MGMT_STATUS_REJECTED);
6511
6512         if (cp->config != 0x00 && cp->config != 0x01)
6513                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6514                                          MGMT_STATUS_INVALID_PARAMS);
6515
6516         if (!test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
6517                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6518                                        MGMT_STATUS_NOT_SUPPORTED);
6519
6520         hci_dev_lock(hdev);
6521
6522         if (cp->config)
6523                 changed = !hci_dev_test_and_set_flag(hdev, HCI_EXT_CONFIGURED);
6524         else
6525                 changed = hci_dev_test_and_clear_flag(hdev, HCI_EXT_CONFIGURED);
6526
6527         err = send_options_rsp(sk, MGMT_OP_SET_EXTERNAL_CONFIG, hdev);
6528         if (err < 0)
6529                 goto unlock;
6530
6531         if (!changed)
6532                 goto unlock;
6533
6534         err = new_options(hdev, sk);
6535
6536         if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) == is_configured(hdev)) {
6537                 mgmt_index_removed(hdev);
6538
6539                 if (hci_dev_test_and_change_flag(hdev, HCI_UNCONFIGURED)) {
6540                         hci_dev_set_flag(hdev, HCI_CONFIG);
6541                         hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6542
6543                         queue_work(hdev->req_workqueue, &hdev->power_on);
6544                 } else {
6545                         set_bit(HCI_RAW, &hdev->flags);
6546                         mgmt_index_added(hdev);
6547                 }
6548         }
6549
6550 unlock:
6551         hci_dev_unlock(hdev);
6552         return err;
6553 }
6554
6555 static int set_public_address(struct sock *sk, struct hci_dev *hdev,
6556                               void *data, u16 len)
6557 {
6558         struct mgmt_cp_set_public_address *cp = data;
6559         bool changed;
6560         int err;
6561
6562         BT_DBG("%s", hdev->name);
6563
6564         if (hdev_is_powered(hdev))
6565                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6566                                        MGMT_STATUS_REJECTED);
6567
6568         if (!bacmp(&cp->bdaddr, BDADDR_ANY))
6569                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6570                                        MGMT_STATUS_INVALID_PARAMS);
6571
6572         if (!hdev->set_bdaddr)
6573                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6574                                        MGMT_STATUS_NOT_SUPPORTED);
6575
6576         hci_dev_lock(hdev);
6577
6578         changed = !!bacmp(&hdev->public_addr, &cp->bdaddr);
6579         bacpy(&hdev->public_addr, &cp->bdaddr);
6580
6581         err = send_options_rsp(sk, MGMT_OP_SET_PUBLIC_ADDRESS, hdev);
6582         if (err < 0)
6583                 goto unlock;
6584
6585         if (!changed)
6586                 goto unlock;
6587
6588         if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
6589                 err = new_options(hdev, sk);
6590
6591         if (is_configured(hdev)) {
6592                 mgmt_index_removed(hdev);
6593
6594                 hci_dev_clear_flag(hdev, HCI_UNCONFIGURED);
6595
6596                 hci_dev_set_flag(hdev, HCI_CONFIG);
6597                 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6598
6599                 queue_work(hdev->req_workqueue, &hdev->power_on);
6600         }
6601
6602 unlock:
6603         hci_dev_unlock(hdev);
6604         return err;
6605 }
6606
6607 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
6608                                   u8 data_len)
6609 {
6610         eir[eir_len++] = sizeof(type) + data_len;
6611         eir[eir_len++] = type;
6612         memcpy(&eir[eir_len], data, data_len);
6613         eir_len += data_len;
6614
6615         return eir_len;
6616 }
6617
6618 static void read_local_oob_ext_data_complete(struct hci_dev *hdev, u8 status,
6619                                              u16 opcode, struct sk_buff *skb)
6620 {
6621         const struct mgmt_cp_read_local_oob_ext_data *mgmt_cp;
6622         struct mgmt_rp_read_local_oob_ext_data *mgmt_rp;
6623         u8 *h192, *r192, *h256, *r256;
6624         struct mgmt_pending_cmd *cmd;
6625         u16 eir_len;
6626         int err;
6627
6628         BT_DBG("%s status %u", hdev->name, status);
6629
6630         cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev);
6631         if (!cmd)
6632                 return;
6633
6634         mgmt_cp = cmd->param;
6635
6636         if (status) {
6637                 status = mgmt_status(status);
6638                 eir_len = 0;
6639
6640                 h192 = NULL;
6641                 r192 = NULL;
6642                 h256 = NULL;
6643                 r256 = NULL;
6644         } else if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
6645                 struct hci_rp_read_local_oob_data *rp;
6646
6647                 if (skb->len != sizeof(*rp)) {
6648                         status = MGMT_STATUS_FAILED;
6649                         eir_len = 0;
6650                 } else {
6651                         status = MGMT_STATUS_SUCCESS;
6652                         rp = (void *)skb->data;
6653
6654                         eir_len = 5 + 18 + 18;
6655                         h192 = rp->hash;
6656                         r192 = rp->rand;
6657                         h256 = NULL;
6658                         r256 = NULL;
6659                 }
6660         } else {
6661                 struct hci_rp_read_local_oob_ext_data *rp;
6662
6663                 if (skb->len != sizeof(*rp)) {
6664                         status = MGMT_STATUS_FAILED;
6665                         eir_len = 0;
6666                 } else {
6667                         status = MGMT_STATUS_SUCCESS;
6668                         rp = (void *)skb->data;
6669
6670                         if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6671                                 eir_len = 5 + 18 + 18;
6672                                 h192 = NULL;
6673                                 r192 = NULL;
6674                         } else {
6675                                 eir_len = 5 + 18 + 18 + 18 + 18;
6676                                 h192 = rp->hash192;
6677                                 r192 = rp->rand192;
6678                         }
6679
6680                         h256 = rp->hash256;
6681                         r256 = rp->rand256;
6682                 }
6683         }
6684
6685         mgmt_rp = kmalloc(sizeof(*mgmt_rp) + eir_len, GFP_KERNEL);
6686         if (!mgmt_rp)
6687                 goto done;
6688
6689         if (status)
6690                 goto send_rsp;
6691
6692         eir_len = eir_append_data(mgmt_rp->eir, 0, EIR_CLASS_OF_DEV,
6693                                   hdev->dev_class, 3);
6694
6695         if (h192 && r192) {
6696                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6697                                           EIR_SSP_HASH_C192, h192, 16);
6698                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6699                                           EIR_SSP_RAND_R192, r192, 16);
6700         }
6701
6702         if (h256 && r256) {
6703                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6704                                           EIR_SSP_HASH_C256, h256, 16);
6705                 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6706                                           EIR_SSP_RAND_R256, r256, 16);
6707         }
6708
6709 send_rsp:
6710         mgmt_rp->type = mgmt_cp->type;
6711         mgmt_rp->eir_len = cpu_to_le16(eir_len);
6712
6713         err = mgmt_cmd_complete(cmd->sk, hdev->id,
6714                                 MGMT_OP_READ_LOCAL_OOB_EXT_DATA, status,
6715                                 mgmt_rp, sizeof(*mgmt_rp) + eir_len);
6716         if (err < 0 || status)
6717                 goto done;
6718
6719         hci_sock_set_flag(cmd->sk, HCI_MGMT_OOB_DATA_EVENTS);
6720
6721         err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6722                                  mgmt_rp, sizeof(*mgmt_rp) + eir_len,
6723                                  HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
6724 done:
6725         kfree(mgmt_rp);
6726         mgmt_pending_remove(cmd);
6727 }
6728
6729 static int read_local_ssp_oob_req(struct hci_dev *hdev, struct sock *sk,
6730                                   struct mgmt_cp_read_local_oob_ext_data *cp)
6731 {
6732         struct mgmt_pending_cmd *cmd;
6733         struct hci_request req;
6734         int err;
6735
6736         cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev,
6737                                cp, sizeof(*cp));
6738         if (!cmd)
6739                 return -ENOMEM;
6740
6741         hci_req_init(&req, hdev);
6742
6743         if (bredr_sc_enabled(hdev))
6744                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
6745         else
6746                 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
6747
6748         err = hci_req_run_skb(&req, read_local_oob_ext_data_complete);
6749         if (err < 0) {
6750                 mgmt_pending_remove(cmd);
6751                 return err;
6752         }
6753
6754         return 0;
6755 }
6756
6757 static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
6758                                    void *data, u16 data_len)
6759 {
6760         struct mgmt_cp_read_local_oob_ext_data *cp = data;
6761         struct mgmt_rp_read_local_oob_ext_data *rp;
6762         size_t rp_len;
6763         u16 eir_len;
6764         u8 status, flags, role, addr[7], hash[16], rand[16];
6765         int err;
6766
6767         BT_DBG("%s", hdev->name);
6768
6769         if (hdev_is_powered(hdev)) {
6770                 switch (cp->type) {
6771                 case BIT(BDADDR_BREDR):
6772                         status = mgmt_bredr_support(hdev);
6773                         if (status)
6774                                 eir_len = 0;
6775                         else
6776                                 eir_len = 5;
6777                         break;
6778                 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6779                         status = mgmt_le_support(hdev);
6780                         if (status)
6781                                 eir_len = 0;
6782                         else
6783                                 eir_len = 9 + 3 + 18 + 18 + 3;
6784                         break;
6785                 default:
6786                         status = MGMT_STATUS_INVALID_PARAMS;
6787                         eir_len = 0;
6788                         break;
6789                 }
6790         } else {
6791                 status = MGMT_STATUS_NOT_POWERED;
6792                 eir_len = 0;
6793         }
6794
6795         rp_len = sizeof(*rp) + eir_len;
6796         rp = kmalloc(rp_len, GFP_ATOMIC);
6797         if (!rp)
6798                 return -ENOMEM;
6799
6800         if (status)
6801                 goto complete;
6802
6803         hci_dev_lock(hdev);
6804
6805         eir_len = 0;
6806         switch (cp->type) {
6807         case BIT(BDADDR_BREDR):
6808                 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
6809                         err = read_local_ssp_oob_req(hdev, sk, cp);
6810                         hci_dev_unlock(hdev);
6811                         if (!err)
6812                                 goto done;
6813
6814                         status = MGMT_STATUS_FAILED;
6815                         goto complete;
6816                 } else {
6817                         eir_len = eir_append_data(rp->eir, eir_len,
6818                                                   EIR_CLASS_OF_DEV,
6819                                                   hdev->dev_class, 3);
6820                 }
6821                 break;
6822         case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6823                 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
6824                     smp_generate_oob(hdev, hash, rand) < 0) {
6825                         hci_dev_unlock(hdev);
6826                         status = MGMT_STATUS_FAILED;
6827                         goto complete;
6828                 }
6829
6830                 /* This should return the active RPA, but since the RPA
6831                  * is only programmed on demand, it is really hard to fill
6832                  * this in at the moment. For now disallow retrieving
6833                  * local out-of-band data when privacy is in use.
6834                  *
6835                  * Returning the identity address will not help here since
6836                  * pairing happens before the identity resolving key is
6837                  * known and thus the connection establishment happens
6838                  * based on the RPA and not the identity address.
6839                  */
6840                 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
6841                         hci_dev_unlock(hdev);
6842                         status = MGMT_STATUS_REJECTED;
6843                         goto complete;
6844                 }
6845
6846                 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
6847                    !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
6848                    (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6849                     bacmp(&hdev->static_addr, BDADDR_ANY))) {
6850                         memcpy(addr, &hdev->static_addr, 6);
6851                         addr[6] = 0x01;
6852                 } else {
6853                         memcpy(addr, &hdev->bdaddr, 6);
6854                         addr[6] = 0x00;
6855                 }
6856
6857                 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_BDADDR,
6858                                           addr, sizeof(addr));
6859
6860                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
6861                         role = 0x02;
6862                 else
6863                         role = 0x01;
6864
6865                 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_ROLE,
6866                                           &role, sizeof(role));
6867
6868                 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED)) {
6869                         eir_len = eir_append_data(rp->eir, eir_len,
6870                                                   EIR_LE_SC_CONFIRM,
6871                                                   hash, sizeof(hash));
6872
6873                         eir_len = eir_append_data(rp->eir, eir_len,
6874                                                   EIR_LE_SC_RANDOM,
6875                                                   rand, sizeof(rand));
6876                 }
6877
6878                 flags = get_adv_discov_flags(hdev);
6879
6880                 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
6881                         flags |= LE_AD_NO_BREDR;
6882
6883                 eir_len = eir_append_data(rp->eir, eir_len, EIR_FLAGS,
6884                                           &flags, sizeof(flags));
6885                 break;
6886         }
6887
6888         hci_dev_unlock(hdev);
6889
6890         hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
6891
6892         status = MGMT_STATUS_SUCCESS;
6893
6894 complete:
6895         rp->type = cp->type;
6896         rp->eir_len = cpu_to_le16(eir_len);
6897
6898         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
6899                                 status, rp, sizeof(*rp) + eir_len);
6900         if (err < 0 || status)
6901                 goto done;
6902
6903         err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6904                                  rp, sizeof(*rp) + eir_len,
6905                                  HCI_MGMT_OOB_DATA_EVENTS, sk);
6906
6907 done:
6908         kfree(rp);
6909
6910         return err;
6911 }
6912
6913 static u32 get_supported_adv_flags(struct hci_dev *hdev)
6914 {
6915         u32 flags = 0;
6916
6917         flags |= MGMT_ADV_FLAG_CONNECTABLE;
6918         flags |= MGMT_ADV_FLAG_DISCOV;
6919         flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
6920         flags |= MGMT_ADV_FLAG_MANAGED_FLAGS;
6921
6922         if (hdev->adv_tx_power != HCI_TX_POWER_INVALID)
6923                 flags |= MGMT_ADV_FLAG_TX_POWER;
6924
6925         return flags;
6926 }
6927
6928 static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
6929                              void *data, u16 data_len)
6930 {
6931         struct mgmt_rp_read_adv_features *rp;
6932         size_t rp_len;
6933         int err, i;
6934         bool instance;
6935         struct adv_info *adv_instance;
6936         u32 supported_flags;
6937
6938         BT_DBG("%s", hdev->name);
6939
6940         if (!lmp_le_capable(hdev))
6941                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6942                                        MGMT_STATUS_REJECTED);
6943
6944         hci_dev_lock(hdev);
6945
6946         rp_len = sizeof(*rp);
6947
6948         instance = hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE);
6949         if (instance)
6950                 rp_len += hdev->adv_instance_cnt;
6951
6952         rp = kmalloc(rp_len, GFP_ATOMIC);
6953         if (!rp) {
6954                 hci_dev_unlock(hdev);
6955                 return -ENOMEM;
6956         }
6957
6958         supported_flags = get_supported_adv_flags(hdev);
6959
6960         rp->supported_flags = cpu_to_le32(supported_flags);
6961         rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
6962         rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
6963         rp->max_instances = HCI_MAX_ADV_INSTANCES;
6964
6965         if (instance) {
6966                 i = 0;
6967                 list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
6968                         if (i >= hdev->adv_instance_cnt)
6969                                 break;
6970
6971                         rp->instance[i] = adv_instance->instance;
6972                         i++;
6973                 }
6974                 rp->num_instances = hdev->adv_instance_cnt;
6975         } else {
6976                 rp->num_instances = 0;
6977         }
6978
6979         hci_dev_unlock(hdev);
6980
6981         err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6982                                 MGMT_STATUS_SUCCESS, rp, rp_len);
6983
6984         kfree(rp);
6985
6986         return err;
6987 }
6988
6989 static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
6990                               u8 len, bool is_adv_data)
6991 {
6992         u8 max_len = HCI_MAX_AD_LENGTH;
6993         int i, cur_len;
6994         bool flags_managed = false;
6995         bool tx_power_managed = false;
6996         u32 flags_params = MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LIMITED_DISCOV |
6997                            MGMT_ADV_FLAG_MANAGED_FLAGS;
6998
6999         if (is_adv_data && (adv_flags & flags_params)) {
7000                 flags_managed = true;
7001                 max_len -= 3;
7002         }
7003
7004         if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_TX_POWER)) {
7005                 tx_power_managed = true;
7006                 max_len -= 3;
7007         }
7008
7009         if (len > max_len)
7010                 return false;
7011
7012         /* Make sure that the data is correctly formatted. */
7013         for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) {
7014                 cur_len = data[i];
7015
7016                 if (flags_managed && data[i + 1] == EIR_FLAGS)
7017                         return false;
7018
7019                 if (tx_power_managed && data[i + 1] == EIR_TX_POWER)
7020                         return false;
7021
7022                 /* If the current field length would exceed the total data
7023                  * length, then it's invalid.
7024                  */
7025                 if (i + cur_len >= len)
7026                         return false;
7027         }
7028
7029         return true;
7030 }
7031
7032 static void add_advertising_complete(struct hci_dev *hdev, u8 status,
7033                                      u16 opcode)
7034 {
7035         struct mgmt_pending_cmd *cmd;
7036         struct mgmt_cp_add_advertising *cp;
7037         struct mgmt_rp_add_advertising rp;
7038         struct adv_info *adv_instance, *n;
7039         u8 instance;
7040
7041         BT_DBG("status %d", status);
7042
7043         hci_dev_lock(hdev);
7044
7045         cmd = pending_find(MGMT_OP_ADD_ADVERTISING, hdev);
7046
7047         if (status)
7048                 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
7049
7050         list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
7051                 if (!adv_instance->pending)
7052                         continue;
7053
7054                 if (!status) {
7055                         adv_instance->pending = false;
7056                         continue;
7057                 }
7058
7059                 instance = adv_instance->instance;
7060
7061                 if (hdev->cur_adv_instance == instance)
7062                         cancel_adv_timeout(hdev);
7063
7064                 hci_remove_adv_instance(hdev, instance);
7065                 advertising_removed(cmd ? cmd->sk : NULL, hdev, instance);
7066         }
7067
7068         if (!cmd)
7069                 goto unlock;
7070
7071         cp = cmd->param;
7072         rp.instance = cp->instance;
7073
7074         if (status)
7075                 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
7076                                 mgmt_status(status));
7077         else
7078                 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
7079                                   mgmt_status(status), &rp, sizeof(rp));
7080
7081         mgmt_pending_remove(cmd);
7082
7083 unlock:
7084         hci_dev_unlock(hdev);
7085 }
7086
7087 void mgmt_adv_timeout_expired(struct hci_dev *hdev)
7088 {
7089         u8 instance;
7090         struct hci_request req;
7091
7092         hdev->adv_instance_timeout = 0;
7093
7094         instance = get_current_adv_instance(hdev);
7095         if (instance == 0x00)
7096                 return;
7097
7098         hci_dev_lock(hdev);
7099         hci_req_init(&req, hdev);
7100
7101         clear_adv_instance(hdev, &req, instance, false);
7102
7103         if (list_empty(&hdev->adv_instances))
7104                 disable_advertising(&req);
7105
7106         if (!skb_queue_empty(&req.cmd_q))
7107                 hci_req_run(&req, NULL);
7108
7109         hci_dev_unlock(hdev);
7110 }
7111
7112 static int add_advertising(struct sock *sk, struct hci_dev *hdev,
7113                            void *data, u16 data_len)
7114 {
7115         struct mgmt_cp_add_advertising *cp = data;
7116         struct mgmt_rp_add_advertising rp;
7117         u32 flags;
7118         u32 supported_flags;
7119         u8 status;
7120         u16 timeout, duration;
7121         unsigned int prev_instance_cnt = hdev->adv_instance_cnt;
7122         u8 schedule_instance = 0;
7123         struct adv_info *next_instance;
7124         int err;
7125         struct mgmt_pending_cmd *cmd;
7126         struct hci_request req;
7127
7128         BT_DBG("%s", hdev->name);
7129
7130         status = mgmt_le_support(hdev);
7131         if (status)
7132                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7133                                        status);
7134
7135         flags = __le32_to_cpu(cp->flags);
7136         timeout = __le16_to_cpu(cp->timeout);
7137         duration = __le16_to_cpu(cp->duration);
7138
7139         /* The current implementation only supports a subset of the specified
7140          * flags.
7141          */
7142         supported_flags = get_supported_adv_flags(hdev);
7143         if (flags & ~supported_flags)
7144                 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7145                                        MGMT_STATUS_INVALID_PARAMS);
7146
7147         hci_dev_lock(hdev);
7148
7149         if (timeout && !hdev_is_powered(hdev)) {
7150                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7151                                       MGMT_STATUS_REJECTED);
7152                 goto unlock;
7153         }
7154
7155         if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7156             pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7157             pending_find(MGMT_OP_SET_LE, hdev)) {
7158                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7159                                       MGMT_STATUS_BUSY);
7160                 goto unlock;
7161         }
7162
7163         if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) ||
7164             !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len,
7165                                cp->scan_rsp_len, false)) {
7166                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7167                                       MGMT_STATUS_INVALID_PARAMS);
7168                 goto unlock;
7169         }
7170
7171         err = hci_add_adv_instance(hdev, cp->instance, flags,
7172                                    cp->adv_data_len, cp->data,
7173                                    cp->scan_rsp_len,
7174                                    cp->data + cp->adv_data_len,
7175                                    timeout, duration);
7176         if (err < 0) {
7177                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7178                                       MGMT_STATUS_FAILED);
7179                 goto unlock;
7180         }
7181
7182         /* Only trigger an advertising added event if a new instance was
7183          * actually added.
7184          */
7185         if (hdev->adv_instance_cnt > prev_instance_cnt)
7186                 advertising_added(sk, hdev, cp->instance);
7187
7188         hci_dev_set_flag(hdev, HCI_ADVERTISING_INSTANCE);
7189
7190         if (hdev->cur_adv_instance == cp->instance) {
7191                 /* If the currently advertised instance is being changed then
7192                  * cancel the current advertising and schedule the next
7193                  * instance. If there is only one instance then the overridden
7194                  * advertising data will be visible right away.
7195                  */
7196                 cancel_adv_timeout(hdev);
7197
7198                 next_instance = hci_get_next_instance(hdev, cp->instance);
7199                 if (next_instance)
7200                         schedule_instance = next_instance->instance;
7201         } else if (!hdev->adv_instance_timeout) {
7202                 /* Immediately advertise the new instance if no other
7203                  * instance is currently being advertised.
7204                  */
7205                 schedule_instance = cp->instance;
7206         }
7207
7208         /* If the HCI_ADVERTISING flag is set or the device isn't powered or
7209          * there is no instance to be advertised then we have no HCI
7210          * communication to make. Simply return.
7211          */
7212         if (!hdev_is_powered(hdev) ||
7213             hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7214             !schedule_instance) {
7215                 rp.instance = cp->instance;
7216                 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7217                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7218                 goto unlock;
7219         }
7220
7221         /* We're good to go, update advertising data, parameters, and start
7222          * advertising.
7223          */
7224         cmd = mgmt_pending_add(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
7225                                data_len);
7226         if (!cmd) {
7227                 err = -ENOMEM;
7228                 goto unlock;
7229         }
7230
7231         hci_req_init(&req, hdev);
7232
7233         err = schedule_adv_instance(&req, schedule_instance, true);
7234
7235         if (!err)
7236                 err = hci_req_run(&req, add_advertising_complete);
7237
7238         if (err < 0)
7239                 mgmt_pending_remove(cmd);
7240
7241 unlock:
7242         hci_dev_unlock(hdev);
7243
7244         return err;
7245 }
7246
7247 static void remove_advertising_complete(struct hci_dev *hdev, u8 status,
7248                                         u16 opcode)
7249 {
7250         struct mgmt_pending_cmd *cmd;
7251         struct mgmt_cp_remove_advertising *cp;
7252         struct mgmt_rp_remove_advertising rp;
7253
7254         BT_DBG("status %d", status);
7255
7256         hci_dev_lock(hdev);
7257
7258         /* A failure status here only means that we failed to disable
7259          * advertising. Otherwise, the advertising instance has been removed,
7260          * so report success.
7261          */
7262         cmd = pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev);
7263         if (!cmd)
7264                 goto unlock;
7265
7266         cp = cmd->param;
7267         rp.instance = cp->instance;
7268
7269         mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, MGMT_STATUS_SUCCESS,
7270                           &rp, sizeof(rp));
7271         mgmt_pending_remove(cmd);
7272
7273 unlock:
7274         hci_dev_unlock(hdev);
7275 }
7276
7277 static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
7278                               void *data, u16 data_len)
7279 {
7280         struct mgmt_cp_remove_advertising *cp = data;
7281         struct mgmt_rp_remove_advertising rp;
7282         struct adv_info *adv_instance;
7283         int err;
7284         struct mgmt_pending_cmd *cmd;
7285         struct hci_request req;
7286
7287         BT_DBG("%s", hdev->name);
7288
7289         hci_dev_lock(hdev);
7290
7291         if (cp->instance)
7292                 adv_instance = hci_find_adv_instance(hdev, cp->instance);
7293
7294         if (!(cp->instance == 0x00 || adv_instance)) {
7295                 err = mgmt_cmd_status(sk, hdev->id,
7296                                       MGMT_OP_REMOVE_ADVERTISING,
7297                                       MGMT_STATUS_INVALID_PARAMS);
7298                 goto unlock;
7299         }
7300
7301         if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7302             pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7303             pending_find(MGMT_OP_SET_LE, hdev)) {
7304                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7305                                       MGMT_STATUS_BUSY);
7306                 goto unlock;
7307         }
7308
7309         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE)) {
7310                 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7311                                       MGMT_STATUS_INVALID_PARAMS);
7312                 goto unlock;
7313         }
7314
7315         hci_req_init(&req, hdev);
7316
7317         clear_adv_instance(hdev, &req, cp->instance, true);
7318
7319         if (list_empty(&hdev->adv_instances))
7320                 disable_advertising(&req);
7321
7322         /* If no HCI commands have been collected so far or the HCI_ADVERTISING
7323          * flag is set or the device isn't powered then we have no HCI
7324          * communication to make. Simply return.
7325          */
7326         if (skb_queue_empty(&req.cmd_q) ||
7327             !hdev_is_powered(hdev) ||
7328             hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
7329                 rp.instance = cp->instance;
7330                 err = mgmt_cmd_complete(sk, hdev->id,
7331                                         MGMT_OP_REMOVE_ADVERTISING,
7332                                         MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7333                 goto unlock;
7334         }
7335
7336         cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
7337                                data_len);
7338         if (!cmd) {
7339                 err = -ENOMEM;
7340                 goto unlock;
7341         }
7342
7343         err = hci_req_run(&req, remove_advertising_complete);
7344         if (err < 0)
7345                 mgmt_pending_remove(cmd);
7346
7347 unlock:
7348         hci_dev_unlock(hdev);
7349
7350         return err;
7351 }
7352
7353 static const struct hci_mgmt_handler mgmt_handlers[] = {
7354         { NULL }, /* 0x0000 (no command) */
7355         { read_version,            MGMT_READ_VERSION_SIZE,
7356                                                 HCI_MGMT_NO_HDEV |
7357                                                 HCI_MGMT_UNTRUSTED },
7358         { read_commands,           MGMT_READ_COMMANDS_SIZE,
7359                                                 HCI_MGMT_NO_HDEV |
7360                                                 HCI_MGMT_UNTRUSTED },
7361         { read_index_list,         MGMT_READ_INDEX_LIST_SIZE,
7362                                                 HCI_MGMT_NO_HDEV |
7363                                                 HCI_MGMT_UNTRUSTED },
7364         { read_controller_info,    MGMT_READ_INFO_SIZE,
7365                                                 HCI_MGMT_UNTRUSTED },
7366         { set_powered,             MGMT_SETTING_SIZE },
7367         { set_discoverable,        MGMT_SET_DISCOVERABLE_SIZE },
7368         { set_connectable,         MGMT_SETTING_SIZE },
7369         { set_fast_connectable,    MGMT_SETTING_SIZE },
7370         { set_bondable,            MGMT_SETTING_SIZE },
7371         { set_link_security,       MGMT_SETTING_SIZE },
7372         { set_ssp,                 MGMT_SETTING_SIZE },
7373         { set_hs,                  MGMT_SETTING_SIZE },
7374         { set_le,                  MGMT_SETTING_SIZE },
7375         { set_dev_class,           MGMT_SET_DEV_CLASS_SIZE },
7376         { set_local_name,          MGMT_SET_LOCAL_NAME_SIZE },
7377         { add_uuid,                MGMT_ADD_UUID_SIZE },
7378         { remove_uuid,             MGMT_REMOVE_UUID_SIZE },
7379         { load_link_keys,          MGMT_LOAD_LINK_KEYS_SIZE,
7380                                                 HCI_MGMT_VAR_LEN },
7381         { load_long_term_keys,     MGMT_LOAD_LONG_TERM_KEYS_SIZE,
7382                                                 HCI_MGMT_VAR_LEN },
7383         { disconnect,              MGMT_DISCONNECT_SIZE },
7384         { get_connections,         MGMT_GET_CONNECTIONS_SIZE },
7385         { pin_code_reply,          MGMT_PIN_CODE_REPLY_SIZE },
7386         { pin_code_neg_reply,      MGMT_PIN_CODE_NEG_REPLY_SIZE },
7387         { set_io_capability,       MGMT_SET_IO_CAPABILITY_SIZE },
7388         { pair_device,             MGMT_PAIR_DEVICE_SIZE },
7389         { cancel_pair_device,      MGMT_CANCEL_PAIR_DEVICE_SIZE },
7390         { unpair_device,           MGMT_UNPAIR_DEVICE_SIZE },
7391         { user_confirm_reply,      MGMT_USER_CONFIRM_REPLY_SIZE },
7392         { user_confirm_neg_reply,  MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
7393         { user_passkey_reply,      MGMT_USER_PASSKEY_REPLY_SIZE },
7394         { user_passkey_neg_reply,  MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
7395         { read_local_oob_data,     MGMT_READ_LOCAL_OOB_DATA_SIZE },
7396         { add_remote_oob_data,     MGMT_ADD_REMOTE_OOB_DATA_SIZE,
7397                                                 HCI_MGMT_VAR_LEN },
7398         { remove_remote_oob_data,  MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
7399         { start_discovery,         MGMT_START_DISCOVERY_SIZE },
7400         { stop_discovery,          MGMT_STOP_DISCOVERY_SIZE },
7401         { confirm_name,            MGMT_CONFIRM_NAME_SIZE },
7402         { block_device,            MGMT_BLOCK_DEVICE_SIZE },
7403         { unblock_device,          MGMT_UNBLOCK_DEVICE_SIZE },
7404         { set_device_id,           MGMT_SET_DEVICE_ID_SIZE },
7405         { set_advertising,         MGMT_SETTING_SIZE },
7406         { set_bredr,               MGMT_SETTING_SIZE },
7407         { set_static_address,      MGMT_SET_STATIC_ADDRESS_SIZE },
7408         { set_scan_params,         MGMT_SET_SCAN_PARAMS_SIZE },
7409         { set_secure_conn,         MGMT_SETTING_SIZE },
7410         { set_debug_keys,          MGMT_SETTING_SIZE },
7411         { set_privacy,             MGMT_SET_PRIVACY_SIZE },
7412         { load_irks,               MGMT_LOAD_IRKS_SIZE,
7413                                                 HCI_MGMT_VAR_LEN },
7414         { get_conn_info,           MGMT_GET_CONN_INFO_SIZE },
7415         { get_clock_info,          MGMT_GET_CLOCK_INFO_SIZE },
7416         { add_device,              MGMT_ADD_DEVICE_SIZE },
7417         { remove_device,           MGMT_REMOVE_DEVICE_SIZE },
7418         { load_conn_param,         MGMT_LOAD_CONN_PARAM_SIZE,
7419                                                 HCI_MGMT_VAR_LEN },
7420         { read_unconf_index_list,  MGMT_READ_UNCONF_INDEX_LIST_SIZE,
7421                                                 HCI_MGMT_NO_HDEV |
7422                                                 HCI_MGMT_UNTRUSTED },
7423         { read_config_info,        MGMT_READ_CONFIG_INFO_SIZE,
7424                                                 HCI_MGMT_UNCONFIGURED |
7425                                                 HCI_MGMT_UNTRUSTED },
7426         { set_external_config,     MGMT_SET_EXTERNAL_CONFIG_SIZE,
7427                                                 HCI_MGMT_UNCONFIGURED },
7428         { set_public_address,      MGMT_SET_PUBLIC_ADDRESS_SIZE,
7429                                                 HCI_MGMT_UNCONFIGURED },
7430         { start_service_discovery, MGMT_START_SERVICE_DISCOVERY_SIZE,
7431                                                 HCI_MGMT_VAR_LEN },
7432         { read_local_oob_ext_data, MGMT_READ_LOCAL_OOB_EXT_DATA_SIZE },
7433         { read_ext_index_list,     MGMT_READ_EXT_INDEX_LIST_SIZE,
7434                                                 HCI_MGMT_NO_HDEV |
7435                                                 HCI_MGMT_UNTRUSTED },
7436         { read_adv_features,       MGMT_READ_ADV_FEATURES_SIZE },
7437         { add_advertising,         MGMT_ADD_ADVERTISING_SIZE,
7438                                                 HCI_MGMT_VAR_LEN },
7439         { remove_advertising,      MGMT_REMOVE_ADVERTISING_SIZE },
7440 };
7441
7442 void mgmt_index_added(struct hci_dev *hdev)
7443 {
7444         struct mgmt_ev_ext_index ev;
7445
7446         if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7447                 return;
7448
7449         switch (hdev->dev_type) {
7450         case HCI_BREDR:
7451                 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7452                         mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev,
7453                                          NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7454                         ev.type = 0x01;
7455                 } else {
7456                         mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
7457                                          HCI_MGMT_INDEX_EVENTS);
7458                         ev.type = 0x00;
7459                 }
7460                 break;
7461         case HCI_AMP:
7462                 ev.type = 0x02;
7463                 break;
7464         default:
7465                 return;
7466         }
7467
7468         ev.bus = hdev->bus;
7469
7470         mgmt_index_event(MGMT_EV_EXT_INDEX_ADDED, hdev, &ev, sizeof(ev),
7471                          HCI_MGMT_EXT_INDEX_EVENTS);
7472 }
7473
7474 void mgmt_index_removed(struct hci_dev *hdev)
7475 {
7476         struct mgmt_ev_ext_index ev;
7477         u8 status = MGMT_STATUS_INVALID_INDEX;
7478
7479         if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7480                 return;
7481
7482         switch (hdev->dev_type) {
7483         case HCI_BREDR:
7484                 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7485
7486                 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7487                         mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev,
7488                                          NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7489                         ev.type = 0x01;
7490                 } else {
7491                         mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
7492                                          HCI_MGMT_INDEX_EVENTS);
7493                         ev.type = 0x00;
7494                 }
7495                 break;
7496         case HCI_AMP:
7497                 ev.type = 0x02;
7498                 break;
7499         default:
7500                 return;
7501         }
7502
7503         ev.bus = hdev->bus;
7504
7505         mgmt_index_event(MGMT_EV_EXT_INDEX_REMOVED, hdev, &ev, sizeof(ev),
7506                          HCI_MGMT_EXT_INDEX_EVENTS);
7507 }
7508
7509 /* This function requires the caller holds hdev->lock */
7510 static void restart_le_actions(struct hci_request *req)
7511 {
7512         struct hci_dev *hdev = req->hdev;
7513         struct hci_conn_params *p;
7514
7515         list_for_each_entry(p, &hdev->le_conn_params, list) {
7516                 /* Needed for AUTO_OFF case where might not "really"
7517                  * have been powered off.
7518                  */
7519                 list_del_init(&p->action);
7520
7521                 switch (p->auto_connect) {
7522                 case HCI_AUTO_CONN_DIRECT:
7523                 case HCI_AUTO_CONN_ALWAYS:
7524                         list_add(&p->action, &hdev->pend_le_conns);
7525                         break;
7526                 case HCI_AUTO_CONN_REPORT:
7527                         list_add(&p->action, &hdev->pend_le_reports);
7528                         break;
7529                 default:
7530                         break;
7531                 }
7532         }
7533
7534         __hci_update_background_scan(req);
7535 }
7536
7537 static void powered_complete(struct hci_dev *hdev, u8 status, u16 opcode)
7538 {
7539         struct cmd_lookup match = { NULL, hdev };
7540
7541         BT_DBG("status 0x%02x", status);
7542
7543         if (!status) {
7544                 /* Register the available SMP channels (BR/EDR and LE) only
7545                  * when successfully powering on the controller. This late
7546                  * registration is required so that LE SMP can clearly
7547                  * decide if the public address or static address is used.
7548                  */
7549                 smp_register(hdev);
7550         }
7551
7552         hci_dev_lock(hdev);
7553
7554         mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7555
7556         new_settings(hdev, match.sk);
7557
7558         hci_dev_unlock(hdev);
7559
7560         if (match.sk)
7561                 sock_put(match.sk);
7562 }
7563
7564 static int powered_update_hci(struct hci_dev *hdev)
7565 {
7566         struct hci_request req;
7567         struct adv_info *adv_instance;
7568         u8 link_sec;
7569
7570         hci_req_init(&req, hdev);
7571
7572         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
7573             !lmp_host_ssp_capable(hdev)) {
7574                 u8 mode = 0x01;
7575
7576                 hci_req_add(&req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
7577
7578                 if (bredr_sc_enabled(hdev) && !lmp_host_sc_capable(hdev)) {
7579                         u8 support = 0x01;
7580
7581                         hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT,
7582                                     sizeof(support), &support);
7583                 }
7584         }
7585
7586         if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7587             lmp_bredr_capable(hdev)) {
7588                 struct hci_cp_write_le_host_supported cp;
7589
7590                 cp.le = 0x01;
7591                 cp.simul = 0x00;
7592
7593                 /* Check first if we already have the right
7594                  * host state (host features set)
7595                  */
7596                 if (cp.le != lmp_host_le_capable(hdev) ||
7597                     cp.simul != lmp_host_le_br_capable(hdev))
7598                         hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
7599                                     sizeof(cp), &cp);
7600         }
7601
7602         if (lmp_le_capable(hdev)) {
7603                 /* Make sure the controller has a good default for
7604                  * advertising data. This also applies to the case
7605                  * where BR/EDR was toggled during the AUTO_OFF phase.
7606                  */
7607                 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7608                     (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7609                      !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))) {
7610                         update_adv_data(&req);
7611                         update_scan_rsp_data(&req);
7612                 }
7613
7614                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7615                     hdev->cur_adv_instance == 0x00 &&
7616                     !list_empty(&hdev->adv_instances)) {
7617                         adv_instance = list_first_entry(&hdev->adv_instances,
7618                                                         struct adv_info, list);
7619                         hdev->cur_adv_instance = adv_instance->instance;
7620                 }
7621
7622                 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7623                         enable_advertising(&req);
7624                 else if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7625                          hdev->cur_adv_instance)
7626                         schedule_adv_instance(&req, hdev->cur_adv_instance,
7627                                               true);
7628
7629                 restart_le_actions(&req);
7630         }
7631
7632         link_sec = hci_dev_test_flag(hdev, HCI_LINK_SECURITY);
7633         if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
7634                 hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,
7635                             sizeof(link_sec), &link_sec);
7636
7637         if (lmp_bredr_capable(hdev)) {
7638                 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
7639                         write_fast_connectable(&req, true);
7640                 else
7641                         write_fast_connectable(&req, false);
7642                 __hci_update_page_scan(&req);
7643                 update_class(&req);
7644                 update_name(&req);
7645                 update_eir(&req);
7646         }
7647
7648         return hci_req_run(&req, powered_complete);
7649 }
7650
7651 int mgmt_powered(struct hci_dev *hdev, u8 powered)
7652 {
7653         struct cmd_lookup match = { NULL, hdev };
7654         u8 status, zero_cod[] = { 0, 0, 0 };
7655         int err;
7656
7657         if (!hci_dev_test_flag(hdev, HCI_MGMT))
7658                 return 0;
7659
7660         if (powered) {
7661                 if (powered_update_hci(hdev) == 0)
7662                         return 0;
7663
7664                 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp,
7665                                      &match);
7666                 goto new_settings;
7667         }
7668
7669         mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7670
7671         /* If the power off is because of hdev unregistration let
7672          * use the appropriate INVALID_INDEX status. Otherwise use
7673          * NOT_POWERED. We cover both scenarios here since later in
7674          * mgmt_index_removed() any hci_conn callbacks will have already
7675          * been triggered, potentially causing misleading DISCONNECTED
7676          * status responses.
7677          */
7678         if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
7679                 status = MGMT_STATUS_INVALID_INDEX;
7680         else
7681                 status = MGMT_STATUS_NOT_POWERED;
7682
7683         mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7684
7685         if (memcmp(hdev->dev_class, zero_cod, sizeof(zero_cod)) != 0)
7686                 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
7687                                    zero_cod, sizeof(zero_cod), NULL);
7688
7689 new_settings:
7690         err = new_settings(hdev, match.sk);
7691
7692         if (match.sk)
7693                 sock_put(match.sk);
7694
7695         return err;
7696 }
7697
7698 void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
7699 {
7700         struct mgmt_pending_cmd *cmd;
7701         u8 status;
7702
7703         cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7704         if (!cmd)
7705                 return;
7706
7707         if (err == -ERFKILL)
7708                 status = MGMT_STATUS_RFKILLED;
7709         else
7710                 status = MGMT_STATUS_FAILED;
7711
7712         mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
7713
7714         mgmt_pending_remove(cmd);
7715 }
7716
7717 void mgmt_discoverable_timeout(struct hci_dev *hdev)
7718 {
7719         struct hci_request req;
7720
7721         hci_dev_lock(hdev);
7722
7723         /* When discoverable timeout triggers, then just make sure
7724          * the limited discoverable flag is cleared. Even in the case
7725          * of a timeout triggered from general discoverable, it is
7726          * safe to unconditionally clear the flag.
7727          */
7728         hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
7729         hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
7730
7731         hci_req_init(&req, hdev);
7732         if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
7733                 u8 scan = SCAN_PAGE;
7734                 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE,
7735                             sizeof(scan), &scan);
7736         }
7737         update_class(&req);
7738
7739         /* Advertising instances don't use the global discoverable setting, so
7740          * only update AD if advertising was enabled using Set Advertising.
7741          */
7742         if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7743                 update_adv_data(&req);
7744
7745         hci_req_run(&req, NULL);
7746
7747         hdev->discov_timeout = 0;
7748
7749         new_settings(hdev, NULL);
7750
7751         hci_dev_unlock(hdev);
7752 }
7753
7754 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
7755                        bool persistent)
7756 {
7757         struct mgmt_ev_new_link_key ev;
7758
7759         memset(&ev, 0, sizeof(ev));
7760
7761         ev.store_hint = persistent;
7762         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7763         ev.key.addr.type = BDADDR_BREDR;
7764         ev.key.type = key->type;
7765         memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
7766         ev.key.pin_len = key->pin_len;
7767
7768         mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
7769 }
7770
7771 static u8 mgmt_ltk_type(struct smp_ltk *ltk)
7772 {
7773         switch (ltk->type) {
7774         case SMP_LTK:
7775         case SMP_LTK_SLAVE:
7776                 if (ltk->authenticated)
7777                         return MGMT_LTK_AUTHENTICATED;
7778                 return MGMT_LTK_UNAUTHENTICATED;
7779         case SMP_LTK_P256:
7780                 if (ltk->authenticated)
7781                         return MGMT_LTK_P256_AUTH;
7782                 return MGMT_LTK_P256_UNAUTH;
7783         case SMP_LTK_P256_DEBUG:
7784                 return MGMT_LTK_P256_DEBUG;
7785         }
7786
7787         return MGMT_LTK_UNAUTHENTICATED;
7788 }
7789
7790 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
7791 {
7792         struct mgmt_ev_new_long_term_key ev;
7793
7794         memset(&ev, 0, sizeof(ev));
7795
7796         /* Devices using resolvable or non-resolvable random addresses
7797          * without providing an identity resolving key don't require
7798          * to store long term keys. Their addresses will change the
7799          * next time around.
7800          *
7801          * Only when a remote device provides an identity address
7802          * make sure the long term key is stored. If the remote
7803          * identity is known, the long term keys are internally
7804          * mapped to the identity address. So allow static random
7805          * and public addresses here.
7806          */
7807         if (key->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7808             (key->bdaddr.b[5] & 0xc0) != 0xc0)
7809                 ev.store_hint = 0x00;
7810         else
7811                 ev.store_hint = persistent;
7812
7813         bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7814         ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
7815         ev.key.type = mgmt_ltk_type(key);
7816         ev.key.enc_size = key->enc_size;
7817         ev.key.ediv = key->ediv;
7818         ev.key.rand = key->rand;
7819
7820         if (key->type == SMP_LTK)
7821                 ev.key.master = 1;
7822
7823         /* Make sure we copy only the significant bytes based on the
7824          * encryption key size, and set the rest of the value to zeroes.
7825          */
7826         memcpy(ev.key.val, key->val, sizeof(key->enc_size));
7827         memset(ev.key.val + key->enc_size, 0,
7828                sizeof(ev.key.val) - key->enc_size);
7829
7830         mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
7831 }
7832
7833 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk)
7834 {
7835         struct mgmt_ev_new_irk ev;
7836
7837         memset(&ev, 0, sizeof(ev));
7838
7839         /* For identity resolving keys from devices that are already
7840          * using a public address or static random address, do not
7841          * ask for storing this key. The identity resolving key really
7842          * is only mandatory for devices using resolvable random
7843          * addresses.
7844          *
7845          * Storing all identity resolving keys has the downside that
7846          * they will be also loaded on next boot of they system. More
7847          * identity resolving keys, means more time during scanning is
7848          * needed to actually resolve these addresses.
7849          */
7850         if (bacmp(&irk->rpa, BDADDR_ANY))
7851                 ev.store_hint = 0x01;
7852         else
7853                 ev.store_hint = 0x00;
7854
7855         bacpy(&ev.rpa, &irk->rpa);
7856         bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
7857         ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);
7858         memcpy(ev.irk.val, irk->val, sizeof(irk->val));
7859
7860         mgmt_event(MGMT_EV_NEW_IRK, hdev, &ev, sizeof(ev), NULL);
7861 }
7862
7863 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
7864                    bool persistent)
7865 {
7866         struct mgmt_ev_new_csrk ev;
7867
7868         memset(&ev, 0, sizeof(ev));
7869
7870         /* Devices using resolvable or non-resolvable random addresses
7871          * without providing an identity resolving key don't require
7872          * to store signature resolving keys. Their addresses will change
7873          * the next time around.
7874          *
7875          * Only when a remote device provides an identity address
7876          * make sure the signature resolving key is stored. So allow
7877          * static random and public addresses here.
7878          */
7879         if (csrk->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7880             (csrk->bdaddr.b[5] & 0xc0) != 0xc0)
7881                 ev.store_hint = 0x00;
7882         else
7883                 ev.store_hint = persistent;
7884
7885         bacpy(&ev.key.addr.bdaddr, &csrk->bdaddr);
7886         ev.key.addr.type = link_to_bdaddr(LE_LINK, csrk->bdaddr_type);
7887         ev.key.type = csrk->type;
7888         memcpy(ev.key.val, csrk->val, sizeof(csrk->val));
7889
7890         mgmt_event(MGMT_EV_NEW_CSRK, hdev, &ev, sizeof(ev), NULL);
7891 }
7892
7893 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
7894                          u8 bdaddr_type, u8 store_hint, u16 min_interval,
7895                          u16 max_interval, u16 latency, u16 timeout)
7896 {
7897         struct mgmt_ev_new_conn_param ev;
7898
7899         if (!hci_is_identity_address(bdaddr, bdaddr_type))
7900                 return;
7901
7902         memset(&ev, 0, sizeof(ev));
7903         bacpy(&ev.addr.bdaddr, bdaddr);
7904         ev.addr.type = link_to_bdaddr(LE_LINK, bdaddr_type);
7905         ev.store_hint = store_hint;
7906         ev.min_interval = cpu_to_le16(min_interval);
7907         ev.max_interval = cpu_to_le16(max_interval);
7908         ev.latency = cpu_to_le16(latency);
7909         ev.timeout = cpu_to_le16(timeout);
7910
7911         mgmt_event(MGMT_EV_NEW_CONN_PARAM, hdev, &ev, sizeof(ev), NULL);
7912 }
7913
7914 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
7915                            u32 flags, u8 *name, u8 name_len)
7916 {
7917         char buf[512];
7918         struct mgmt_ev_device_connected *ev = (void *) buf;
7919         u16 eir_len = 0;
7920
7921         bacpy(&ev->addr.bdaddr, &conn->dst);
7922         ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
7923
7924         ev->flags = __cpu_to_le32(flags);
7925
7926         /* We must ensure that the EIR Data fields are ordered and
7927          * unique. Keep it simple for now and avoid the problem by not
7928          * adding any BR/EDR data to the LE adv.
7929          */
7930         if (conn->le_adv_data_len > 0) {
7931                 memcpy(&ev->eir[eir_len],
7932                        conn->le_adv_data, conn->le_adv_data_len);
7933                 eir_len = conn->le_adv_data_len;
7934         } else {
7935                 if (name_len > 0)
7936                         eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
7937                                                   name, name_len);
7938
7939                 if (memcmp(conn->dev_class, "\0\0\0", 3) != 0)
7940                         eir_len = eir_append_data(ev->eir, eir_len,
7941                                                   EIR_CLASS_OF_DEV,
7942                                                   conn->dev_class, 3);
7943         }
7944
7945         ev->eir_len = cpu_to_le16(eir_len);
7946
7947         mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
7948                     sizeof(*ev) + eir_len, NULL);
7949 }
7950
7951 static void disconnect_rsp(struct mgmt_pending_cmd *cmd, void *data)
7952 {
7953         struct sock **sk = data;
7954
7955         cmd->cmd_complete(cmd, 0);
7956
7957         *sk = cmd->sk;
7958         sock_hold(*sk);
7959
7960         mgmt_pending_remove(cmd);
7961 }
7962
7963 static void unpair_device_rsp(struct mgmt_pending_cmd *cmd, void *data)
7964 {
7965         struct hci_dev *hdev = data;
7966         struct mgmt_cp_unpair_device *cp = cmd->param;
7967
7968         device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
7969
7970         cmd->cmd_complete(cmd, 0);
7971         mgmt_pending_remove(cmd);
7972 }
7973
7974 bool mgmt_powering_down(struct hci_dev *hdev)
7975 {
7976         struct mgmt_pending_cmd *cmd;
7977         struct mgmt_mode *cp;
7978
7979         cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7980         if (!cmd)
7981                 return false;
7982
7983         cp = cmd->param;
7984         if (!cp->val)
7985                 return true;
7986
7987         return false;
7988 }
7989
7990 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
7991                               u8 link_type, u8 addr_type, u8 reason,
7992                               bool mgmt_connected)
7993 {
7994         struct mgmt_ev_device_disconnected ev;
7995         struct sock *sk = NULL;
7996
7997         /* The connection is still in hci_conn_hash so test for 1
7998          * instead of 0 to know if this is the last one.
7999          */
8000         if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8001                 cancel_delayed_work(&hdev->power_off);
8002                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8003         }
8004
8005         if (!mgmt_connected)
8006                 return;
8007
8008         if (link_type != ACL_LINK && link_type != LE_LINK)
8009                 return;
8010
8011         mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
8012
8013         bacpy(&ev.addr.bdaddr, bdaddr);
8014         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8015         ev.reason = reason;
8016
8017         mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
8018
8019         if (sk)
8020                 sock_put(sk);
8021
8022         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8023                              hdev);
8024 }
8025
8026 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
8027                             u8 link_type, u8 addr_type, u8 status)
8028 {
8029         u8 bdaddr_type = link_to_bdaddr(link_type, addr_type);
8030         struct mgmt_cp_disconnect *cp;
8031         struct mgmt_pending_cmd *cmd;
8032
8033         mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8034                              hdev);
8035
8036         cmd = pending_find(MGMT_OP_DISCONNECT, hdev);
8037         if (!cmd)
8038                 return;
8039
8040         cp = cmd->param;
8041
8042         if (bacmp(bdaddr, &cp->addr.bdaddr))
8043                 return;
8044
8045         if (cp->addr.type != bdaddr_type)
8046                 return;
8047
8048         cmd->cmd_complete(cmd, mgmt_status(status));
8049         mgmt_pending_remove(cmd);
8050 }
8051
8052 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8053                          u8 addr_type, u8 status)
8054 {
8055         struct mgmt_ev_connect_failed ev;
8056
8057         /* The connection is still in hci_conn_hash so test for 1
8058          * instead of 0 to know if this is the last one.
8059          */
8060         if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8061                 cancel_delayed_work(&hdev->power_off);
8062                 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8063         }
8064
8065         bacpy(&ev.addr.bdaddr, bdaddr);
8066         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8067         ev.status = mgmt_status(status);
8068
8069         mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
8070 }
8071
8072 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
8073 {
8074         struct mgmt_ev_pin_code_request ev;
8075
8076         bacpy(&ev.addr.bdaddr, bdaddr);
8077         ev.addr.type = BDADDR_BREDR;
8078         ev.secure = secure;
8079
8080         mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
8081 }
8082
8083 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8084                                   u8 status)
8085 {
8086         struct mgmt_pending_cmd *cmd;
8087
8088         cmd = pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
8089         if (!cmd)
8090                 return;
8091
8092         cmd->cmd_complete(cmd, mgmt_status(status));
8093         mgmt_pending_remove(cmd);
8094 }
8095
8096 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8097                                       u8 status)
8098 {
8099         struct mgmt_pending_cmd *cmd;
8100
8101         cmd = pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
8102         if (!cmd)
8103                 return;
8104
8105         cmd->cmd_complete(cmd, mgmt_status(status));
8106         mgmt_pending_remove(cmd);
8107 }
8108
8109 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8110                               u8 link_type, u8 addr_type, u32 value,
8111                               u8 confirm_hint)
8112 {
8113         struct mgmt_ev_user_confirm_request ev;
8114
8115         BT_DBG("%s", hdev->name);
8116
8117         bacpy(&ev.addr.bdaddr, bdaddr);
8118         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8119         ev.confirm_hint = confirm_hint;
8120         ev.value = cpu_to_le32(value);
8121
8122         return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
8123                           NULL);
8124 }
8125
8126 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8127                               u8 link_type, u8 addr_type)
8128 {
8129         struct mgmt_ev_user_passkey_request ev;
8130
8131         BT_DBG("%s", hdev->name);
8132
8133         bacpy(&ev.addr.bdaddr, bdaddr);
8134         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8135
8136         return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
8137                           NULL);
8138 }
8139
8140 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8141                                       u8 link_type, u8 addr_type, u8 status,
8142                                       u8 opcode)
8143 {
8144         struct mgmt_pending_cmd *cmd;
8145
8146         cmd = pending_find(opcode, hdev);
8147         if (!cmd)
8148                 return -ENOENT;
8149
8150         cmd->cmd_complete(cmd, mgmt_status(status));
8151         mgmt_pending_remove(cmd);
8152
8153         return 0;
8154 }
8155
8156 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8157                                      u8 link_type, u8 addr_type, u8 status)
8158 {
8159         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8160                                           status, MGMT_OP_USER_CONFIRM_REPLY);
8161 }
8162
8163 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8164                                          u8 link_type, u8 addr_type, u8 status)
8165 {
8166         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8167                                           status,
8168                                           MGMT_OP_USER_CONFIRM_NEG_REPLY);
8169 }
8170
8171 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8172                                      u8 link_type, u8 addr_type, u8 status)
8173 {
8174         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8175                                           status, MGMT_OP_USER_PASSKEY_REPLY);
8176 }
8177
8178 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8179                                          u8 link_type, u8 addr_type, u8 status)
8180 {
8181         return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8182                                           status,
8183                                           MGMT_OP_USER_PASSKEY_NEG_REPLY);
8184 }
8185
8186 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
8187                              u8 link_type, u8 addr_type, u32 passkey,
8188                              u8 entered)
8189 {
8190         struct mgmt_ev_passkey_notify ev;
8191
8192         BT_DBG("%s", hdev->name);
8193
8194         bacpy(&ev.addr.bdaddr, bdaddr);
8195         ev.addr.type = link_to_bdaddr(link_type, addr_type);
8196         ev.passkey = __cpu_to_le32(passkey);
8197         ev.entered = entered;
8198
8199         return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
8200 }
8201
8202 void mgmt_auth_failed(struct hci_conn *conn, u8 hci_status)
8203 {
8204         struct mgmt_ev_auth_failed ev;
8205         struct mgmt_pending_cmd *cmd;
8206         u8 status = mgmt_status(hci_status);
8207
8208         bacpy(&ev.addr.bdaddr, &conn->dst);
8209         ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
8210         ev.status = status;
8211
8212         cmd = find_pairing(conn);
8213
8214         mgmt_event(MGMT_EV_AUTH_FAILED, conn->hdev, &ev, sizeof(ev),
8215                     cmd ? cmd->sk : NULL);
8216
8217         if (cmd) {
8218                 cmd->cmd_complete(cmd, status);
8219                 mgmt_pending_remove(cmd);
8220         }
8221 }
8222
8223 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
8224 {
8225         struct cmd_lookup match = { NULL, hdev };
8226         bool changed;
8227
8228         if (status) {
8229                 u8 mgmt_err = mgmt_status(status);
8230                 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
8231                                      cmd_status_rsp, &mgmt_err);
8232                 return;
8233         }
8234
8235         if (test_bit(HCI_AUTH, &hdev->flags))
8236                 changed = !hci_dev_test_and_set_flag(hdev, HCI_LINK_SECURITY);
8237         else
8238                 changed = hci_dev_test_and_clear_flag(hdev, HCI_LINK_SECURITY);
8239
8240         mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
8241                              &match);
8242
8243         if (changed)
8244                 new_settings(hdev, match.sk);
8245
8246         if (match.sk)
8247                 sock_put(match.sk);
8248 }
8249
8250 static void clear_eir(struct hci_request *req)
8251 {
8252         struct hci_dev *hdev = req->hdev;
8253         struct hci_cp_write_eir cp;
8254
8255         if (!lmp_ext_inq_capable(hdev))
8256                 return;
8257
8258         memset(hdev->eir, 0, sizeof(hdev->eir));
8259
8260         memset(&cp, 0, sizeof(cp));
8261
8262         hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
8263 }
8264
8265 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
8266 {
8267         struct cmd_lookup match = { NULL, hdev };
8268         struct hci_request req;
8269         bool changed = false;
8270
8271         if (status) {
8272                 u8 mgmt_err = mgmt_status(status);
8273
8274                 if (enable && hci_dev_test_and_clear_flag(hdev,
8275                                                           HCI_SSP_ENABLED)) {
8276                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8277                         new_settings(hdev, NULL);
8278                 }
8279
8280                 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
8281                                      &mgmt_err);
8282                 return;
8283         }
8284
8285         if (enable) {
8286                 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
8287         } else {
8288                 changed = hci_dev_test_and_clear_flag(hdev, HCI_SSP_ENABLED);
8289                 if (!changed)
8290                         changed = hci_dev_test_and_clear_flag(hdev,
8291                                                               HCI_HS_ENABLED);
8292                 else
8293                         hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8294         }
8295
8296         mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
8297
8298         if (changed)
8299                 new_settings(hdev, match.sk);
8300
8301         if (match.sk)
8302                 sock_put(match.sk);
8303
8304         hci_req_init(&req, hdev);
8305
8306         if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
8307                 if (hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
8308                         hci_req_add(&req, HCI_OP_WRITE_SSP_DEBUG_MODE,
8309                                     sizeof(enable), &enable);
8310                 update_eir(&req);
8311         } else {
8312                 clear_eir(&req);
8313         }
8314
8315         hci_req_run(&req, NULL);
8316 }
8317
8318 static void sk_lookup(struct mgmt_pending_cmd *cmd, void *data)
8319 {
8320         struct cmd_lookup *match = data;
8321
8322         if (match->sk == NULL) {
8323                 match->sk = cmd->sk;
8324                 sock_hold(match->sk);
8325         }
8326 }
8327
8328 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
8329                                     u8 status)
8330 {
8331         struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
8332
8333         mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
8334         mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
8335         mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
8336
8337         if (!status)
8338                 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
8339                                    dev_class, 3, NULL);
8340
8341         if (match.sk)
8342                 sock_put(match.sk);
8343 }
8344
8345 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
8346 {
8347         struct mgmt_cp_set_local_name ev;
8348         struct mgmt_pending_cmd *cmd;
8349
8350         if (status)
8351                 return;
8352
8353         memset(&ev, 0, sizeof(ev));
8354         memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
8355         memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
8356
8357         cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
8358         if (!cmd) {
8359                 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
8360
8361                 /* If this is a HCI command related to powering on the
8362                  * HCI dev don't send any mgmt signals.
8363                  */
8364                 if (pending_find(MGMT_OP_SET_POWERED, hdev))
8365                         return;
8366         }
8367
8368         mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
8369                            cmd ? cmd->sk : NULL);
8370 }
8371
8372 static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
8373 {
8374         int i;
8375
8376         for (i = 0; i < uuid_count; i++) {
8377                 if (!memcmp(uuid, uuids[i], 16))
8378                         return true;
8379         }
8380
8381         return false;
8382 }
8383
8384 static bool eir_has_uuids(u8 *eir, u16 eir_len, u16 uuid_count, u8 (*uuids)[16])
8385 {
8386         u16 parsed = 0;
8387
8388         while (parsed < eir_len) {
8389                 u8 field_len = eir[0];
8390                 u8 uuid[16];
8391                 int i;
8392
8393                 if (field_len == 0)
8394                         break;
8395
8396                 if (eir_len - parsed < field_len + 1)
8397                         break;
8398
8399                 switch (eir[1]) {
8400                 case EIR_UUID16_ALL:
8401                 case EIR_UUID16_SOME:
8402                         for (i = 0; i + 3 <= field_len; i += 2) {
8403                                 memcpy(uuid, bluetooth_base_uuid, 16);
8404                                 uuid[13] = eir[i + 3];
8405                                 uuid[12] = eir[i + 2];
8406                                 if (has_uuid(uuid, uuid_count, uuids))
8407                                         return true;
8408                         }
8409                         break;
8410                 case EIR_UUID32_ALL:
8411                 case EIR_UUID32_SOME:
8412                         for (i = 0; i + 5 <= field_len; i += 4) {
8413                                 memcpy(uuid, bluetooth_base_uuid, 16);
8414                                 uuid[15] = eir[i + 5];
8415                                 uuid[14] = eir[i + 4];
8416                                 uuid[13] = eir[i + 3];
8417                                 uuid[12] = eir[i + 2];
8418                                 if (has_uuid(uuid, uuid_count, uuids))
8419                                         return true;
8420                         }
8421                         break;
8422                 case EIR_UUID128_ALL:
8423                 case EIR_UUID128_SOME:
8424                         for (i = 0; i + 17 <= field_len; i += 16) {
8425                                 memcpy(uuid, eir + i + 2, 16);
8426                                 if (has_uuid(uuid, uuid_count, uuids))
8427                                         return true;
8428                         }
8429                         break;
8430                 }
8431
8432                 parsed += field_len + 1;
8433                 eir += field_len + 1;
8434         }
8435
8436         return false;
8437 }
8438
8439 static void restart_le_scan(struct hci_dev *hdev)
8440 {
8441         /* If controller is not scanning we are done. */
8442         if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
8443                 return;
8444
8445         if (time_after(jiffies + DISCOV_LE_RESTART_DELAY,
8446                        hdev->discovery.scan_start +
8447                        hdev->discovery.scan_duration))
8448                 return;
8449
8450         queue_delayed_work(hdev->workqueue, &hdev->le_scan_restart,
8451                            DISCOV_LE_RESTART_DELAY);
8452 }
8453
8454 static bool is_filter_match(struct hci_dev *hdev, s8 rssi, u8 *eir,
8455                             u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8456 {
8457         /* If a RSSI threshold has been specified, and
8458          * HCI_QUIRK_STRICT_DUPLICATE_FILTER is not set, then all results with
8459          * a RSSI smaller than the RSSI threshold will be dropped. If the quirk
8460          * is set, let it through for further processing, as we might need to
8461          * restart the scan.
8462          *
8463          * For BR/EDR devices (pre 1.2) providing no RSSI during inquiry,
8464          * the results are also dropped.
8465          */
8466         if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8467             (rssi == HCI_RSSI_INVALID ||
8468             (rssi < hdev->discovery.rssi &&
8469              !test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks))))
8470                 return  false;
8471
8472         if (hdev->discovery.uuid_count != 0) {
8473                 /* If a list of UUIDs is provided in filter, results with no
8474                  * matching UUID should be dropped.
8475                  */
8476                 if (!eir_has_uuids(eir, eir_len, hdev->discovery.uuid_count,
8477                                    hdev->discovery.uuids) &&
8478                     !eir_has_uuids(scan_rsp, scan_rsp_len,
8479                                    hdev->discovery.uuid_count,
8480                                    hdev->discovery.uuids))
8481                         return false;
8482         }
8483
8484         /* If duplicate filtering does not report RSSI changes, then restart
8485          * scanning to ensure updated result with updated RSSI values.
8486          */
8487         if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks)) {
8488                 restart_le_scan(hdev);
8489
8490                 /* Validate RSSI value against the RSSI threshold once more. */
8491                 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8492                     rssi < hdev->discovery.rssi)
8493                         return false;
8494         }
8495
8496         return true;
8497 }
8498
8499 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8500                        u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
8501                        u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8502 {
8503         char buf[512];
8504         struct mgmt_ev_device_found *ev = (void *)buf;
8505         size_t ev_size;
8506
8507         /* Don't send events for a non-kernel initiated discovery. With
8508          * LE one exception is if we have pend_le_reports > 0 in which
8509          * case we're doing passive scanning and want these events.
8510          */
8511         if (!hci_discovery_active(hdev)) {
8512                 if (link_type == ACL_LINK)
8513                         return;
8514                 if (link_type == LE_LINK && list_empty(&hdev->pend_le_reports))
8515                         return;
8516         }
8517
8518         if (hdev->discovery.result_filtering) {
8519                 /* We are using service discovery */
8520                 if (!is_filter_match(hdev, rssi, eir, eir_len, scan_rsp,
8521                                      scan_rsp_len))
8522                         return;
8523         }
8524
8525         /* Make sure that the buffer is big enough. The 5 extra bytes
8526          * are for the potential CoD field.
8527          */
8528         if (sizeof(*ev) + eir_len + scan_rsp_len + 5 > sizeof(buf))
8529                 return;
8530
8531         memset(buf, 0, sizeof(buf));
8532
8533         /* In case of device discovery with BR/EDR devices (pre 1.2), the
8534          * RSSI value was reported as 0 when not available. This behavior
8535          * is kept when using device discovery. This is required for full
8536          * backwards compatibility with the API.
8537          *
8538          * However when using service discovery, the value 127 will be
8539          * returned when the RSSI is not available.
8540          */
8541         if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
8542             link_type == ACL_LINK)
8543                 rssi = 0;
8544
8545         bacpy(&ev->addr.bdaddr, bdaddr);
8546         ev->addr.type = link_to_bdaddr(link_type, addr_type);
8547         ev->rssi = rssi;
8548         ev->flags = cpu_to_le32(flags);
8549
8550         if (eir_len > 0)
8551                 /* Copy EIR or advertising data into event */
8552                 memcpy(ev->eir, eir, eir_len);
8553
8554         if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
8555                 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
8556                                           dev_class, 3);
8557
8558         if (scan_rsp_len > 0)
8559                 /* Append scan response data to event */
8560                 memcpy(ev->eir + eir_len, scan_rsp, scan_rsp_len);
8561
8562         ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
8563         ev_size = sizeof(*ev) + eir_len + scan_rsp_len;
8564
8565         mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
8566 }
8567
8568 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8569                       u8 addr_type, s8 rssi, u8 *name, u8 name_len)
8570 {
8571         struct mgmt_ev_device_found *ev;
8572         char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
8573         u16 eir_len;
8574
8575         ev = (struct mgmt_ev_device_found *) buf;
8576
8577         memset(buf, 0, sizeof(buf));
8578
8579         bacpy(&ev->addr.bdaddr, bdaddr);
8580         ev->addr.type = link_to_bdaddr(link_type, addr_type);
8581         ev->rssi = rssi;
8582
8583         eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
8584                                   name_len);
8585
8586         ev->eir_len = cpu_to_le16(eir_len);
8587
8588         mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
8589 }
8590
8591 void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
8592 {
8593         struct mgmt_ev_discovering ev;
8594
8595         BT_DBG("%s discovering %u", hdev->name, discovering);
8596
8597         memset(&ev, 0, sizeof(ev));
8598         ev.type = hdev->discovery.type;
8599         ev.discovering = discovering;
8600
8601         mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
8602 }
8603
8604 static void adv_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
8605 {
8606         BT_DBG("%s status %u", hdev->name, status);
8607 }
8608
8609 void mgmt_reenable_advertising(struct hci_dev *hdev)
8610 {
8611         struct hci_request req;
8612
8613         if (!hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
8614             !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
8615                 return;
8616
8617         hci_req_init(&req, hdev);
8618         enable_advertising(&req);
8619         hci_req_run(&req, adv_enable_complete);
8620 }
8621
8622 static struct hci_mgmt_chan chan = {
8623         .channel        = HCI_CHANNEL_CONTROL,
8624         .handler_count  = ARRAY_SIZE(mgmt_handlers),
8625         .handlers       = mgmt_handlers,
8626         .hdev_init      = mgmt_init_hdev,
8627 };
8628
8629 int mgmt_init(void)
8630 {
8631         return hci_mgmt_chan_register(&chan);
8632 }
8633
8634 void mgmt_exit(void)
8635 {
8636         hci_mgmt_chan_unregister(&chan);
8637 }