wpa_supplicant/dbus/dbus_new_handlers.c

   1 /*
   2  * WPA Supplicant / dbus-based control interface
   3  * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
   4  * Copyright (c) 2009-2010, Witold Sowa <witold.sowa@gmail.com>
   5  * Copyright (c) 2009-2015, Jouni Malinen <j@w1.fi>
   6  *
   7  * This software may be distributed under the terms of the BSD license.
   8  * See README for more details.
   9  */
  10
  11 #include "includes.h"
  12
  13 #include "common.h"
  14 #include "common/ieee802_11_defs.h"
  15 #include "eap_peer/eap_methods.h"
  16 #include "eapol_supp/eapol_supp_sm.h"
  17 #include "rsn_supp/wpa.h"
  18 #include "../config.h"
  19 #include "../wpa_supplicant_i.h"
  20 #include "../driver_i.h"
  21 #include "../notify.h"
  22 #include "../bss.h"
  23 #include "../scan.h"
  24 #include "../autoscan.h"
  25 #include "dbus_new_helpers.h"
  26 #include "dbus_new.h"
  27 #include "dbus_new_handlers.h"
  28 #include "dbus_dict_helpers.h"
  29 #include "dbus_common_i.h"
  30 #include "drivers/driver.h"
  31
  32 static const char * const debug_strings[] = {
  33         "excessive", "msgdump", "debug", "info", "warning", "error", NULL
  34 };
  35
  36
  37 /**
  38  * wpas_dbus_error_unknown_error - Return a new UnknownError error message
  39  * @message: Pointer to incoming dbus message this error refers to
  40  * @arg: Optional string appended to error message
  41  * Returns: a dbus error message
  42  *
  43  * Convenience function to create and return an UnknownError
  44  */
  45 DBusMessage * wpas_dbus_error_unknown_error(DBusMessage *message,
  46                                             const char *arg)
  47 {
  48         return dbus_message_new_error(message, WPAS_DBUS_ERROR_UNKNOWN_ERROR,
  49                                       arg);
  50 }
  51
  52
  53 /**
  54  * wpas_dbus_error_iface_unknown - Return a new invalid interface error message
  55  * @message: Pointer to incoming dbus message this error refers to
  56  * Returns: A dbus error message
  57  *
  58  * Convenience function to create and return an invalid interface error
  59  */
  60 static DBusMessage * wpas_dbus_error_iface_unknown(DBusMessage *message)
  61 {
  62         return dbus_message_new_error(
  63                 message, WPAS_DBUS_ERROR_IFACE_UNKNOWN,
  64                 "wpa_supplicant knows nothing about this interface.");
  65 }
  66
  67
  68 /**
  69  * wpas_dbus_error_network_unknown - Return a new NetworkUnknown error message
  70  * @message: Pointer to incoming dbus message this error refers to
  71  * Returns: a dbus error message
  72  *
  73  * Convenience function to create and return an invalid network error
  74  */
  75 static DBusMessage * wpas_dbus_error_network_unknown(DBusMessage *message)
  76 {
  77         return dbus_message_new_error(
  78                 message, WPAS_DBUS_ERROR_NETWORK_UNKNOWN,
  79                 "There is no such a network in this interface.");
  80 }
  81
  82
  83 /**
  84  * wpas_dbus_error_invalid_args - Return a new InvalidArgs error message
  85  * @message: Pointer to incoming dbus message this error refers to
  86  * Returns: a dbus error message
  87  *
  88  * Convenience function to create and return an invalid options error
  89  */
  90 DBusMessage * wpas_dbus_error_invalid_args(DBusMessage *message,
  91                                           const char *arg)
  92 {
  93         DBusMessage *reply;
  94
  95         reply = dbus_message_new_error(
  96                 message, WPAS_DBUS_ERROR_INVALID_ARGS,
  97                 "Did not receive correct message arguments.");
  98         if (arg != NULL)
  99                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
 100                                          DBUS_TYPE_INVALID);
 101
 102         return reply;
 103 }
 104
 105
 106 /**
 107  * wpas_dbus_error_scan_error - Return a new ScanError error message
 108  * @message: Pointer to incoming dbus message this error refers to
 109  * @error: Optional string to be used as the error message
 110  * Returns: a dbus error message
 111  *
 112  * Convenience function to create and return a scan error
 113  */
 114 static DBusMessage * wpas_dbus_error_scan_error(DBusMessage *message,
 115                                                 const char *error)
 116 {
 117         return dbus_message_new_error(message,
 118                                       WPAS_DBUS_ERROR_IFACE_SCAN_ERROR,
 119                                       error);
 120 }
 121
 122
 123 DBusMessage * wpas_dbus_error_no_memory(DBusMessage *message)
 124 {
 125         wpa_printf(MSG_DEBUG, "dbus: Failed to allocate memory");
 126         return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
 127 }
 128
 129
 130 static const char * const dont_quote[] = {
 131         "key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
 132         "opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
 133         "bssid", "scan_freq", "freq_list", NULL
 134 };
 135
 136 static dbus_bool_t should_quote_opt(const char *key)
 137 {
 138         int i = 0;
 139
 140         while (dont_quote[i] != NULL) {
 141                 if (os_strcmp(key, dont_quote[i]) == 0)
 142                         return FALSE;
 143                 i++;
 144         }
 145         return TRUE;
 146 }
 147
 148 /**
 149  * get_iface_by_dbus_path - Get a new network interface
 150  * @global: Pointer to global data from wpa_supplicant_init()
 151  * @path: Pointer to a dbus object path representing an interface
 152  * Returns: Pointer to the interface or %NULL if not found
 153  */
 154 static struct wpa_supplicant * get_iface_by_dbus_path(
 155         struct wpa_global *global, const char *path)
 156 {
 157         struct wpa_supplicant *wpa_s;
 158
 159         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 160                 if (wpa_s->dbus_new_path &&
 161                     os_strcmp(wpa_s->dbus_new_path, path) == 0)
 162                         return wpa_s;
 163         }
 164         return NULL;
 165 }
 166
 167
 168 /**
 169  * set_network_properties - Set properties of a configured network
 170  * @wpa_s: wpa_supplicant structure for a network interface
 171  * @ssid: wpa_ssid structure for a configured network
 172  * @iter: DBus message iterator containing dictionary of network
 173  * properties to set.
 174  * @error: On failure, an error describing the failure
 175  * Returns: TRUE if the request succeeds, FALSE if it failed
 176  *
 177  * Sets network configuration with parameters given id DBus dictionary
 178  */
 179 dbus_bool_t set_network_properties(struct wpa_supplicant *wpa_s,
 180                                    struct wpa_ssid *ssid,
 181                                    DBusMessageIter *iter,
 182                                    DBusError *error)
 183 {
 184         struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
 185         DBusMessageIter iter_dict;
 186         char *value = NULL;
 187
 188         if (!wpa_dbus_dict_open_read(iter, &iter_dict, error))
 189                 return FALSE;
 190
 191         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 192                 size_t size = 50;
 193                 int ret;
 194
 195                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
 196                         goto error;
 197
 198                 value = NULL;
 199                 if (entry.type == DBUS_TYPE_ARRAY &&
 200                     entry.array_type == DBUS_TYPE_BYTE) {
 201                         if (entry.array_len <= 0)
 202                                 goto error;
 203
 204                         size = entry.array_len * 2 + 1;
 205                         value = os_zalloc(size);
 206                         if (value == NULL)
 207                                 goto error;
 208
 209                         ret = wpa_snprintf_hex(value, size,
 210                                                (u8 *) entry.bytearray_value,
 211                                                entry.array_len);
 212                         if (ret <= 0)
 213                                 goto error;
 214                 } else if (entry.type == DBUS_TYPE_STRING) {
 215                         if (should_quote_opt(entry.key)) {
 216                                 size = os_strlen(entry.str_value);
 217                                 if (size == 0)
 218                                         goto error;
 219
 220                                 size += 3;
 221                                 value = os_zalloc(size);
 222                                 if (value == NULL)
 223                                         goto error;
 224
 225                                 ret = os_snprintf(value, size, "\"%s\"",
 226                                                   entry.str_value);
 227                                 if (os_snprintf_error(size, ret))
 228                                         goto error;
 229                         } else {
 230                                 value = os_strdup(entry.str_value);
 231                                 if (value == NULL)
 232                                         goto error;
 233                         }
 234                 } else if (entry.type == DBUS_TYPE_UINT32) {
 235                         value = os_zalloc(size);
 236                         if (value == NULL)
 237                                 goto error;
 238
 239                         ret = os_snprintf(value, size, "%u",
 240                                           entry.uint32_value);
 241                         if (os_snprintf_error(size, ret))
 242                                 goto error;
 243                 } else if (entry.type == DBUS_TYPE_INT32) {
 244                         value = os_zalloc(size);
 245                         if (value == NULL)
 246                                 goto error;
 247
 248                         ret = os_snprintf(value, size, "%d",
 249                                           entry.int32_value);
 250                         if (os_snprintf_error(size, ret))
 251                                 goto error;
 252                 } else
 253                         goto error;
 254
 255                 if (wpa_config_set(ssid, entry.key, value, 0) < 0)
 256                         goto error;
 257
 258                 if (os_strcmp(entry.key, "bssid") != 0 &&
 259                     os_strcmp(entry.key, "priority") != 0)
 260                         wpa_sm_pmksa_cache_flush(wpa_s->wpa, ssid);
 261
 262                 if (wpa_s->current_ssid == ssid ||
 263                     wpa_s->current_ssid == NULL) {
 264                         /*
 265                          * Invalidate the EAP session cache if anything in the
 266                          * current or previously used configuration changes.
 267                          */
 268                         eapol_sm_invalidate_cached_session(wpa_s->eapol);
 269                 }
 270
 271                 if ((os_strcmp(entry.key, "psk") == 0 &&
 272                      value[0] == '"' && ssid->ssid_len) ||
 273                     (os_strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
 274                         wpa_config_update_psk(ssid);
 275                 else if (os_strcmp(entry.key, "priority") == 0)
 276                         wpa_config_update_prio_list(wpa_s->conf);
 277
 278                 os_free(value);
 279                 value = NULL;
 280                 wpa_dbus_dict_entry_clear(&entry);
 281         }
 282
 283         return TRUE;
 284
 285 error:
 286         os_free(value);
 287         wpa_dbus_dict_entry_clear(&entry);
 288         dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
 289                              "invalid message format");
 290         return FALSE;
 291 }
 292
 293
 294 /**
 295  * wpas_dbus_simple_property_getter - Get basic type property
 296  * @iter: Message iter to use when appending arguments
 297  * @type: DBus type of property (must be basic type)
 298  * @val: pointer to place holding property value
 299  * @error: On failure an error describing the failure
 300  * Returns: TRUE if the request was successful, FALSE if it failed
 301  *
 302  * Generic getter for basic type properties. Type is required to be basic.
 303  */
 304 dbus_bool_t wpas_dbus_simple_property_getter(DBusMessageIter *iter,
 305                                              const int type,
 306                                              const void *val,
 307                                              DBusError *error)
 308 {
 309         DBusMessageIter variant_iter;
 310
 311         if (!dbus_type_is_basic(type)) {
 312                 dbus_set_error(error, DBUS_ERROR_FAILED,
 313                                "%s: given type is not basic", __func__);
 314                 return FALSE;
 315         }
 316
 317         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
 318                                               wpa_dbus_type_as_string(type),
 319                                               &variant_iter) ||
 320             !dbus_message_iter_append_basic(&variant_iter, type, val) ||
 321             !dbus_message_iter_close_container(iter, &variant_iter)) {
 322                 dbus_set_error(error, DBUS_ERROR_FAILED,
 323                                "%s: error constructing reply", __func__);
 324                 return FALSE;
 325         }
 326
 327         return TRUE;
 328 }
 329
 330
 331 /**
 332  * wpas_dbus_simple_property_setter - Set basic type property
 333  * @message: Pointer to incoming dbus message
 334  * @type: DBus type of property (must be basic type)
 335  * @val: pointer to place where value being set will be stored
 336  * Returns: TRUE if the request was successful, FALSE if it failed
 337  *
 338  * Generic setter for basic type properties. Type is required to be basic.
 339  */
 340 dbus_bool_t wpas_dbus_simple_property_setter(DBusMessageIter *iter,
 341                                              DBusError *error,
 342                                              const int type, void *val)
 343 {
 344         DBusMessageIter variant_iter;
 345
 346         if (!dbus_type_is_basic(type)) {
 347                 dbus_set_error(error, DBUS_ERROR_FAILED,
 348                                "%s: given type is not basic", __func__);
 349                 return FALSE;
 350         }
 351
 352         /* Look at the new value */
 353         dbus_message_iter_recurse(iter, &variant_iter);
 354         if (dbus_message_iter_get_arg_type(&variant_iter) != type) {
 355                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
 356                                      "wrong property type");
 357                 return FALSE;
 358         }
 359         dbus_message_iter_get_basic(&variant_iter, val);
 360
 361         return TRUE;
 362 }
 363
 364
 365 /**
 366  * wpas_dbus_simple_array_property_getter - Get array type property
 367  * @iter: Pointer to incoming dbus message iterator
 368  * @type: DBus type of property array elements (must be basic type)
 369  * @array: pointer to array of elements to put into response message
 370  * @array_len: length of above array
 371  * @error: a pointer to an error to fill on failure
 372  * Returns: TRUE if the request succeeded, FALSE if it failed
 373  *
 374  * Generic getter for array type properties. Array elements type is
 375  * required to be basic.
 376  */
 377 dbus_bool_t wpas_dbus_simple_array_property_getter(DBusMessageIter *iter,
 378                                                    const int type,
 379                                                    const void *array,
 380                                                    size_t array_len,
 381                                                    DBusError *error)
 382 {
 383         DBusMessageIter variant_iter, array_iter;
 384         char type_str[] = "a?"; /* ? will be replaced with subtype letter; */
 385         const char *sub_type_str;
 386         size_t element_size, i;
 387
 388         if (!dbus_type_is_basic(type)) {
 389                 dbus_set_error(error, DBUS_ERROR_FAILED,
 390                                "%s: given type is not basic", __func__);
 391                 return FALSE;
 392         }
 393
 394         sub_type_str = wpa_dbus_type_as_string(type);
 395         type_str[1] = sub_type_str[0];
 396
 397         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
 398                                               type_str, &variant_iter) ||
 399             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
 400                                               sub_type_str, &array_iter)) {
 401                 dbus_set_error(error, DBUS_ERROR_FAILED,
 402                                "%s: failed to construct message", __func__);
 403                 return FALSE;
 404         }
 405
 406         switch (type) {
 407         case DBUS_TYPE_BYTE:
 408         case DBUS_TYPE_BOOLEAN:
 409                 element_size = 1;
 410                 break;
 411         case DBUS_TYPE_INT16:
 412         case DBUS_TYPE_UINT16:
 413                 element_size = sizeof(uint16_t);
 414                 break;
 415         case DBUS_TYPE_INT32:
 416         case DBUS_TYPE_UINT32:
 417                 element_size = sizeof(uint32_t);
 418                 break;
 419         case DBUS_TYPE_INT64:
 420         case DBUS_TYPE_UINT64:
 421                 element_size = sizeof(uint64_t);
 422                 break;
 423         case DBUS_TYPE_DOUBLE:
 424                 element_size = sizeof(double);
 425                 break;
 426         case DBUS_TYPE_STRING:
 427         case DBUS_TYPE_OBJECT_PATH:
 428                 element_size = sizeof(char *);
 429                 break;
 430         default:
 431                 dbus_set_error(error, DBUS_ERROR_FAILED,
 432                                "%s: unknown element type %d", __func__, type);
 433                 return FALSE;
 434         }
 435
 436         for (i = 0; i < array_len; i++) {
 437                 if (!dbus_message_iter_append_basic(&array_iter, type,
 438                                                     (const char *) array +
 439                                                     i * element_size)) {
 440                         dbus_set_error(error, DBUS_ERROR_FAILED,
 441                                        "%s: failed to construct message 2.5",
 442                                        __func__);
 443                         return FALSE;
 444                 }
 445         }
 446
 447         if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
 448             !dbus_message_iter_close_container(iter, &variant_iter)) {
 449                 dbus_set_error(error, DBUS_ERROR_FAILED,
 450                                "%s: failed to construct message 3", __func__);
 451                 return FALSE;
 452         }
 453
 454         return TRUE;
 455 }
 456
 457
 458 /**
 459  * wpas_dbus_simple_array_array_property_getter - Get array array type property
 460  * @iter: Pointer to incoming dbus message iterator
 461  * @type: DBus type of property array elements (must be basic type)
 462  * @array: pointer to array of elements to put into response message
 463  * @array_len: length of above array
 464  * @error: a pointer to an error to fill on failure
 465  * Returns: TRUE if the request succeeded, FALSE if it failed
 466  *
 467  * Generic getter for array type properties. Array elements type is
 468  * required to be basic.
 469  */
 470 dbus_bool_t wpas_dbus_simple_array_array_property_getter(DBusMessageIter *iter,
 471                                                          const int type,
 472                                                          struct wpabuf **array,
 473                                                          size_t array_len,
 474                                                          DBusError *error)
 475 {
 476         DBusMessageIter variant_iter, array_iter;
 477         char type_str[] = "aa?";
 478         char inner_type_str[] = "a?";
 479         const char *sub_type_str;
 480         size_t i;
 481
 482         if (!dbus_type_is_basic(type)) {
 483                 dbus_set_error(error, DBUS_ERROR_FAILED,
 484                                "%s: given type is not basic", __func__);
 485                 return FALSE;
 486         }
 487
 488         sub_type_str = wpa_dbus_type_as_string(type);
 489         type_str[2] = sub_type_str[0];
 490         inner_type_str[1] = sub_type_str[0];
 491
 492         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
 493                                               type_str, &variant_iter) ||
 494             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
 495                                               inner_type_str, &array_iter)) {
 496                 dbus_set_error(error, DBUS_ERROR_FAILED,
 497                                "%s: failed to construct message", __func__);
 498                 return FALSE;
 499         }
 500
 501         for (i = 0; i < array_len && array[i]; i++) {
 502                 wpa_dbus_dict_bin_array_add_element(&array_iter,
 503                                                     wpabuf_head(array[i]),
 504                                                     wpabuf_len(array[i]));
 505
 506         }
 507
 508         if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
 509             !dbus_message_iter_close_container(iter, &variant_iter)) {
 510                 dbus_set_error(error, DBUS_ERROR_FAILED,
 511                                "%s: failed to close message", __func__);
 512                 return FALSE;
 513         }
 514
 515         return TRUE;
 516 }
 517
 518
 519 /**
 520  * wpas_dbus_handler_create_interface - Request registration of a network iface
 521  * @message: Pointer to incoming dbus message
 522  * @global: %wpa_supplicant global data structure
 523  * Returns: The object path of the new interface object,
 524  *          or a dbus error message with more information
 525  *
 526  * Handler function for "CreateInterface" method call. Handles requests
 527  * by dbus clients to register a network interface that wpa_supplicant
 528  * will manage.
 529  */
 530 DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
 531                                                  struct wpa_global *global)
 532 {
 533         DBusMessageIter iter_dict;
 534         DBusMessage *reply = NULL;
 535         DBusMessageIter iter;
 536         struct wpa_dbus_dict_entry entry;
 537         char *driver = NULL;
 538         char *ifname = NULL;
 539         char *confname = NULL;
 540         char *bridge_ifname = NULL;
 541
 542         dbus_message_iter_init(message, &iter);
 543
 544         if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
 545                 goto error;
 546         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 547                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
 548                         goto error;
 549                 if (os_strcmp(entry.key, "Driver") == 0 &&
 550                     entry.type == DBUS_TYPE_STRING) {
 551                         os_free(driver);
 552                         driver = os_strdup(entry.str_value);
 553                         wpa_dbus_dict_entry_clear(&entry);
 554                         if (driver == NULL)
 555                                 goto oom;
 556                 } else if (os_strcmp(entry.key, "Ifname") == 0 &&
 557                            entry.type == DBUS_TYPE_STRING) {
 558                         os_free(ifname);
 559                         ifname = os_strdup(entry.str_value);
 560                         wpa_dbus_dict_entry_clear(&entry);
 561                         if (ifname == NULL)
 562                                 goto oom;
 563                 } else if (os_strcmp(entry.key, "ConfigFile") == 0 &&
 564                            entry.type == DBUS_TYPE_STRING) {
 565                         os_free(confname);
 566                         confname = os_strdup(entry.str_value);
 567                         wpa_dbus_dict_entry_clear(&entry);
 568                         if (confname == NULL)
 569                                 goto oom;
 570                 } else if (os_strcmp(entry.key, "BridgeIfname") == 0 &&
 571                            entry.type == DBUS_TYPE_STRING) {
 572                         os_free(bridge_ifname);
 573                         bridge_ifname = os_strdup(entry.str_value);
 574                         wpa_dbus_dict_entry_clear(&entry);
 575                         if (bridge_ifname == NULL)
 576                                 goto oom;
 577                 } else {
 578                         wpa_dbus_dict_entry_clear(&entry);
 579                         goto error;
 580                 }
 581         }
 582
 583         if (ifname == NULL)
 584                 goto error; /* Required Ifname argument missing */
 585
 586         /*
 587          * Try to get the wpa_supplicant record for this iface, return
 588          * an error if we already control it.
 589          */
 590         if (wpa_supplicant_get_iface(global, ifname) != NULL) {
 591                 reply = dbus_message_new_error(
 592                         message, WPAS_DBUS_ERROR_IFACE_EXISTS,
 593                         "wpa_supplicant already controls this interface.");
 594         } else {
 595                 struct wpa_supplicant *wpa_s;
 596                 struct wpa_interface iface;
 597
 598                 os_memset(&iface, 0, sizeof(iface));
 599                 iface.driver = driver;
 600                 iface.ifname = ifname;
 601                 iface.confname = confname;
 602                 iface.bridge_ifname = bridge_ifname;
 603                 /* Otherwise, have wpa_supplicant attach to it. */
 604                 wpa_s = wpa_supplicant_add_iface(global, &iface, NULL);
 605                 if (wpa_s && wpa_s->dbus_new_path) {
 606                         const char *path = wpa_s->dbus_new_path;
 607
 608                         reply = dbus_message_new_method_return(message);
 609                         dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
 610                                                  &path, DBUS_TYPE_INVALID);
 611                 } else {
 612                         reply = wpas_dbus_error_unknown_error(
 613                                 message,
 614                                 "wpa_supplicant couldn't grab this interface.");
 615                 }
 616         }
 617
 618 out:
 619         os_free(driver);
 620         os_free(ifname);
 621         os_free(confname);
 622         os_free(bridge_ifname);
 623         return reply;
 624
 625 error:
 626         reply = wpas_dbus_error_invalid_args(message, NULL);
 627         goto out;
 628 oom:
 629         reply = wpas_dbus_error_no_memory(message);
 630         goto out;
 631 }
 632
 633
 634 /**
 635  * wpas_dbus_handler_remove_interface - Request deregistration of an interface
 636  * @message: Pointer to incoming dbus message
 637  * @global: wpa_supplicant global data structure
 638  * Returns: a dbus message containing a UINT32 indicating success (1) or
 639  *          failure (0), or returns a dbus error message with more information
 640  *
 641  * Handler function for "removeInterface" method call.  Handles requests
 642  * by dbus clients to deregister a network interface that wpa_supplicant
 643  * currently manages.
 644  */
 645 DBusMessage * wpas_dbus_handler_remove_interface(DBusMessage *message,
 646                                                  struct wpa_global *global)
 647 {
 648         struct wpa_supplicant *wpa_s;
 649         char *path;
 650         DBusMessage *reply = NULL;
 651
 652         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 653                               DBUS_TYPE_INVALID);
 654
 655         wpa_s = get_iface_by_dbus_path(global, path);
 656         if (wpa_s == NULL)
 657                 reply = wpas_dbus_error_iface_unknown(message);
 658         else if (wpa_supplicant_remove_iface(global, wpa_s, 0)) {
 659                 reply = wpas_dbus_error_unknown_error(
 660                         message,
 661                         "wpa_supplicant couldn't remove this interface.");
 662         }
 663
 664         return reply;
 665 }
 666
 667
 668 /**
 669  * wpas_dbus_handler_get_interface - Get the object path for an interface name
 670  * @message: Pointer to incoming dbus message
 671  * @global: %wpa_supplicant global data structure
 672  * Returns: The object path of the interface object,
 673  *          or a dbus error message with more information
 674  *
 675  * Handler function for "getInterface" method call.
 676  */
 677 DBusMessage * wpas_dbus_handler_get_interface(DBusMessage *message,
 678                                               struct wpa_global *global)
 679 {
 680         DBusMessage *reply = NULL;
 681         const char *ifname;
 682         const char *path;
 683         struct wpa_supplicant *wpa_s;
 684
 685         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &ifname,
 686                               DBUS_TYPE_INVALID);
 687
 688         wpa_s = wpa_supplicant_get_iface(global, ifname);
 689         if (wpa_s == NULL || wpa_s->dbus_new_path == NULL)
 690                 return wpas_dbus_error_iface_unknown(message);
 691
 692         path = wpa_s->dbus_new_path;
 693         reply = dbus_message_new_method_return(message);
 694         if (reply == NULL)
 695                 return wpas_dbus_error_no_memory(message);
 696         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
 697                                       DBUS_TYPE_INVALID)) {
 698                 dbus_message_unref(reply);
 699                 return wpas_dbus_error_no_memory(message);
 700         }
 701
 702         return reply;
 703 }
 704
 705
 706 /**
 707  * wpas_dbus_getter_debug_level - Get debug level
 708  * @iter: Pointer to incoming dbus message iter
 709  * @error: Location to store error on failure
 710  * @user_data: Function specific data
 711  * Returns: TRUE on success, FALSE on failure
 712  *
 713  * Getter for "DebugLevel" property.
 714  */
 715 dbus_bool_t wpas_dbus_getter_debug_level(
 716         const struct wpa_dbus_property_desc *property_desc,
 717         DBusMessageIter *iter, DBusError *error, void *user_data)
 718 {
 719         const char *str;
 720         int idx = wpa_debug_level;
 721
 722         if (idx < 0)
 723                 idx = 0;
 724         if (idx > 5)
 725                 idx = 5;
 726         str = debug_strings[idx];
 727         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
 728                                                 &str, error);
 729 }
 730
 731
 732 /**
 733  * wpas_dbus_getter_debug_timestamp - Get debug timestamp
 734  * @iter: Pointer to incoming dbus message iter
 735  * @error: Location to store error on failure
 736  * @user_data: Function specific data
 737  * Returns: TRUE on success, FALSE on failure
 738  *
 739  * Getter for "DebugTimestamp" property.
 740  */
 741 dbus_bool_t wpas_dbus_getter_debug_timestamp(
 742         const struct wpa_dbus_property_desc *property_desc,
 743         DBusMessageIter *iter, DBusError *error, void *user_data)
 744 {
 745         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
 746                                                 &wpa_debug_timestamp, error);
 747
 748 }
 749
 750
 751 /**
 752  * wpas_dbus_getter_debug_show_keys - Get debug show keys
 753  * @iter: Pointer to incoming dbus message iter
 754  * @error: Location to store error on failure
 755  * @user_data: Function specific data
 756  * Returns: TRUE on success, FALSE on failure
 757  *
 758  * Getter for "DebugShowKeys" property.
 759  */
 760 dbus_bool_t wpas_dbus_getter_debug_show_keys(
 761         const struct wpa_dbus_property_desc *property_desc,
 762         DBusMessageIter *iter, DBusError *error, void *user_data)
 763 {
 764         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
 765                                                 &wpa_debug_show_keys, error);
 766
 767 }
 768
 769 /**
 770  * wpas_dbus_setter_debug_level - Set debug level
 771  * @iter: Pointer to incoming dbus message iter
 772  * @error: Location to store error on failure
 773  * @user_data: Function specific data
 774  * Returns: TRUE on success, FALSE on failure
 775  *
 776  * Setter for "DebugLevel" property.
 777  */
 778 dbus_bool_t wpas_dbus_setter_debug_level(
 779         const struct wpa_dbus_property_desc *property_desc,
 780         DBusMessageIter *iter, DBusError *error, void *user_data)
 781 {
 782         struct wpa_global *global = user_data;
 783         const char *str = NULL;
 784         int i, val = -1;
 785
 786         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
 787                                               &str))
 788                 return FALSE;
 789
 790         for (i = 0; debug_strings[i]; i++)
 791                 if (os_strcmp(debug_strings[i], str) == 0) {
 792                         val = i;
 793                         break;
 794                 }
 795
 796         if (val < 0 ||
 797             wpa_supplicant_set_debug_params(global, val, wpa_debug_timestamp,
 798                                             wpa_debug_show_keys)) {
 799                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
 800                                      "wrong debug level value");
 801                 return FALSE;
 802         }
 803
 804         return TRUE;
 805 }
 806
 807
 808 /**
 809  * wpas_dbus_setter_debug_timestamp - Set debug timestamp
 810  * @iter: Pointer to incoming dbus message iter
 811  * @error: Location to store error on failure
 812  * @user_data: Function specific data
 813  * Returns: TRUE on success, FALSE on failure
 814  *
 815  * Setter for "DebugTimestamp" property.
 816  */
 817 dbus_bool_t wpas_dbus_setter_debug_timestamp(
 818         const struct wpa_dbus_property_desc *property_desc,
 819         DBusMessageIter *iter, DBusError *error, void *user_data)
 820 {
 821         struct wpa_global *global = user_data;
 822         dbus_bool_t val;
 823
 824         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
 825                                               &val))
 826                 return FALSE;
 827
 828         wpa_supplicant_set_debug_params(global, wpa_debug_level, val ? 1 : 0,
 829                                         wpa_debug_show_keys);
 830         return TRUE;
 831 }
 832
 833
 834 /**
 835  * wpas_dbus_setter_debug_show_keys - Set debug show keys
 836  * @iter: Pointer to incoming dbus message iter
 837  * @error: Location to store error on failure
 838  * @user_data: Function specific data
 839  * Returns: TRUE on success, FALSE on failure
 840  *
 841  * Setter for "DebugShowKeys" property.
 842  */
 843 dbus_bool_t wpas_dbus_setter_debug_show_keys(
 844         const struct wpa_dbus_property_desc *property_desc,
 845         DBusMessageIter *iter, DBusError *error, void *user_data)
 846 {
 847         struct wpa_global *global = user_data;
 848         dbus_bool_t val;
 849
 850         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
 851                                               &val))
 852                 return FALSE;
 853
 854         wpa_supplicant_set_debug_params(global, wpa_debug_level,
 855                                         wpa_debug_timestamp,
 856                                         val ? 1 : 0);
 857         return TRUE;
 858 }
 859
 860
 861 /**
 862  * wpas_dbus_getter_interfaces - Request registered interfaces list
 863  * @iter: Pointer to incoming dbus message iter
 864  * @error: Location to store error on failure
 865  * @user_data: Function specific data
 866  * Returns: TRUE on success, FALSE on failure
 867  *
 868  * Getter for "Interfaces" property. Handles requests
 869  * by dbus clients to return list of registered interfaces objects
 870  * paths
 871  */
 872 dbus_bool_t wpas_dbus_getter_interfaces(
 873         const struct wpa_dbus_property_desc *property_desc,
 874         DBusMessageIter *iter, DBusError *error, void *user_data)
 875 {
 876         struct wpa_global *global = user_data;
 877         struct wpa_supplicant *wpa_s;
 878         const char **paths;
 879         unsigned int i = 0, num = 0;
 880         dbus_bool_t success;
 881
 882         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 883                 if (wpa_s->dbus_new_path)
 884                         num++;
 885         }
 886
 887         paths = os_calloc(num, sizeof(char *));
 888         if (!paths) {
 889                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
 890                 return FALSE;
 891         }
 892
 893         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 894                 if (wpa_s->dbus_new_path)
 895                         paths[i++] = wpa_s->dbus_new_path;
 896         }
 897
 898         success = wpas_dbus_simple_array_property_getter(iter,
 899                                                          DBUS_TYPE_OBJECT_PATH,
 900                                                          paths, num, error);
 901
 902         os_free(paths);
 903         return success;
 904 }
 905
 906
 907 /**
 908  * wpas_dbus_getter_eap_methods - Request supported EAP methods list
 909  * @iter: Pointer to incoming dbus message iter
 910  * @error: Location to store error on failure
 911  * @user_data: Function specific data
 912  * Returns: TRUE on success, FALSE on failure
 913  *
 914  * Getter for "EapMethods" property. Handles requests
 915  * by dbus clients to return list of strings with supported EAP methods
 916  */
 917 dbus_bool_t wpas_dbus_getter_eap_methods(
 918         const struct wpa_dbus_property_desc *property_desc,
 919         DBusMessageIter *iter, DBusError *error, void *user_data)
 920 {
 921         char **eap_methods;
 922         size_t num_items = 0;
 923         dbus_bool_t success;
 924
 925         eap_methods = eap_get_names_as_string_array(&num_items);
 926         if (!eap_methods) {
 927                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
 928                 return FALSE;
 929         }
 930
 931         success = wpas_dbus_simple_array_property_getter(iter,
 932                                                          DBUS_TYPE_STRING,
 933                                                          eap_methods,
 934                                                          num_items, error);
 935
 936         while (num_items)
 937                 os_free(eap_methods[--num_items]);
 938         os_free(eap_methods);
 939         return success;
 940 }
 941
 942
 943 /**
 944  * wpas_dbus_getter_global_capabilities - Request supported global capabilities
 945  * @iter: Pointer to incoming dbus message iter
 946  * @error: Location to store error on failure
 947  * @user_data: Function specific data
 948  * Returns: TRUE on success, FALSE on failure
 949  *
 950  * Getter for "Capabilities" property. Handles requests by dbus clients to
 951  * return a list of strings with supported capabilities like AP, RSN IBSS,
 952  * and P2P that are determined at compile time.
 953  */
 954 dbus_bool_t wpas_dbus_getter_global_capabilities(
 955         const struct wpa_dbus_property_desc *property_desc,
 956         DBusMessageIter *iter, DBusError *error, void *user_data)
 957 {
 958         const char *capabilities[5] = { NULL, NULL, NULL, NULL, NULL };
 959         size_t num_items = 0;
 960
 961 #ifdef CONFIG_AP
 962         capabilities[num_items++] = "ap";
 963 #endif /* CONFIG_AP */
 964 #ifdef CONFIG_IBSS_RSN
 965         capabilities[num_items++] = "ibss-rsn";
 966 #endif /* CONFIG_IBSS_RSN */
 967 #ifdef CONFIG_P2P
 968         capabilities[num_items++] = "p2p";
 969 #endif /* CONFIG_P2P */
 970 #ifdef CONFIG_INTERWORKING
 971         capabilities[num_items++] = "interworking";
 972 #endif /* CONFIG_INTERWORKING */
 973
 974         return wpas_dbus_simple_array_property_getter(iter,
 975                                                       DBUS_TYPE_STRING,
 976                                                       capabilities,
 977                                                       num_items, error);
 978 }
 979
 980
 981 static int wpas_dbus_get_scan_type(DBusMessage *message, DBusMessageIter *var,
 982                                    char **type, DBusMessage **reply)
 983 {
 984         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_STRING) {
 985                 wpa_printf(MSG_DEBUG, "%s[dbus]: Type must be a string",
 986                            __func__);
 987                 *reply = wpas_dbus_error_invalid_args(
 988                         message, "Wrong Type value type. String required");
 989                 return -1;
 990         }
 991         dbus_message_iter_get_basic(var, type);
 992         return 0;
 993 }
 994
 995
 996 static int wpas_dbus_get_scan_ssids(DBusMessage *message, DBusMessageIter *var,
 997                                     struct wpa_driver_scan_params *params,
 998                                     DBusMessage **reply)
 999 {
1000         struct wpa_driver_scan_ssid *ssids = params->ssids;
1001         size_t ssids_num = 0;
1002         u8 *ssid;
1003         DBusMessageIter array_iter, sub_array_iter;
1004         char *val;
1005         int len;
1006
1007         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
1008                 wpa_printf(MSG_DEBUG,
1009                            "%s[dbus]: ssids must be an array of arrays of bytes",
1010                            __func__);
1011                 *reply = wpas_dbus_error_invalid_args(
1012                         message,
1013                         "Wrong SSIDs value type. Array of arrays of bytes required");
1014                 return -1;
1015         }
1016
1017         dbus_message_iter_recurse(var, &array_iter);
1018
1019         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
1020             dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE) {
1021                 wpa_printf(MSG_DEBUG,
1022                            "%s[dbus]: ssids must be an array of arrays of bytes",
1023                            __func__);
1024                 *reply = wpas_dbus_error_invalid_args(
1025                         message,
1026                         "Wrong SSIDs value type. Array of arrays of bytes required");
1027                 return -1;
1028         }
1029
1030         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY) {
1031                 if (ssids_num >= WPAS_MAX_SCAN_SSIDS) {
1032                         wpa_printf(MSG_DEBUG,
1033                                    "%s[dbus]: Too many ssids specified on scan dbus call",
1034                                    __func__);
1035                         *reply = wpas_dbus_error_invalid_args(
1036                                 message,
1037                                 "Too many ssids specified. Specify at most four");
1038                         return -1;
1039                 }
1040
1041                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
1042
1043                 dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
1044
1045                 if (len > SSID_MAX_LEN) {
1046                         wpa_printf(MSG_DEBUG,
1047                                    "%s[dbus]: SSID too long (len=%d max_len=%d)",
1048                                    __func__, len, SSID_MAX_LEN);
1049                         *reply = wpas_dbus_error_invalid_args(
1050                                 message, "Invalid SSID: too long");
1051                         return -1;
1052                 }
1053
1054                 if (len != 0) {
1055                         ssid = os_malloc(len);
1056                         if (ssid == NULL) {
1057                                 *reply = wpas_dbus_error_no_memory(message);
1058                                 return -1;
1059                         }
1060                         os_memcpy(ssid, val, len);
1061                 } else {
1062                         /* Allow zero-length SSIDs */
1063                         ssid = NULL;
1064                 }
1065
1066                 ssids[ssids_num].ssid = ssid;
1067                 ssids[ssids_num].ssid_len = len;
1068
1069                 dbus_message_iter_next(&array_iter);
1070                 ssids_num++;
1071         }
1072
1073         params->num_ssids = ssids_num;
1074         return 0;
1075 }
1076
1077
1078 static int wpas_dbus_get_scan_ies(DBusMessage *message, DBusMessageIter *var,
1079                                   struct wpa_driver_scan_params *params,
1080                                   DBusMessage **reply)
1081 {
1082         u8 *ies = NULL, *nies;
1083         int ies_len = 0;
1084         DBusMessageIter array_iter, sub_array_iter;
1085         char *val;
1086         int len;
1087
1088         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
1089                 wpa_printf(MSG_DEBUG,
1090                            "%s[dbus]: ies must be an array of arrays of bytes",
1091                            __func__);
1092                 *reply = wpas_dbus_error_invalid_args(
1093                         message,
1094                         "Wrong IEs value type. Array of arrays of bytes required");
1095                 return -1;
1096         }
1097
1098         dbus_message_iter_recurse(var, &array_iter);
1099
1100         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
1101             dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE) {
1102                 wpa_printf(MSG_DEBUG,
1103                            "%s[dbus]: ies must be an array of arrays of bytes",
1104                            __func__);
1105                 *reply = wpas_dbus_error_invalid_args(
1106                         message, "Wrong IEs value type. Array required");
1107                 return -1;
1108         }
1109
1110         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY) {
1111                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
1112
1113                 dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
1114                 if (len == 0) {
1115                         dbus_message_iter_next(&array_iter);
1116                         continue;
1117                 }
1118
1119                 nies = os_realloc(ies, ies_len + len);
1120                 if (nies == NULL) {
1121                         os_free(ies);
1122                         *reply = wpas_dbus_error_no_memory(message);
1123                         return -1;
1124                 }
1125                 ies = nies;
1126                 os_memcpy(ies + ies_len, val, len);
1127                 ies_len += len;
1128
1129                 dbus_message_iter_next(&array_iter);
1130         }
1131
1132         params->extra_ies = ies;
1133         params->extra_ies_len = ies_len;
1134         return 0;
1135 }
1136
1137
1138 static int wpas_dbus_get_scan_channels(DBusMessage *message,
1139                                        DBusMessageIter *var,
1140                                        struct wpa_driver_scan_params *params,
1141                                        DBusMessage **reply)
1142 {
1143         DBusMessageIter array_iter, sub_array_iter;
1144         int *freqs = NULL, *nfreqs;
1145         int freqs_num = 0;
1146
1147         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
1148                 wpa_printf(MSG_DEBUG,
1149                            "%s[dbus]: Channels must be an array of structs",
1150                            __func__);
1151                 *reply = wpas_dbus_error_invalid_args(
1152                         message,
1153                         "Wrong Channels value type. Array of structs required");
1154                 return -1;
1155         }
1156
1157         dbus_message_iter_recurse(var, &array_iter);
1158
1159         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_STRUCT) {
1160                 wpa_printf(MSG_DEBUG,
1161                            "%s[dbus]: Channels must be an array of structs",
1162                            __func__);
1163                 *reply = wpas_dbus_error_invalid_args(
1164                         message,
1165                         "Wrong Channels value type. Array of structs required");
1166                 return -1;
1167         }
1168
1169         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_STRUCT)
1170         {
1171                 int freq, width;
1172
1173                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
1174
1175                 if (dbus_message_iter_get_arg_type(&sub_array_iter) !=
1176                     DBUS_TYPE_UINT32) {
1177                         wpa_printf(MSG_DEBUG,
1178                                    "%s[dbus]: Channel must by specified by struct of two UINT32s %c",
1179                                    __func__,
1180                                    dbus_message_iter_get_arg_type(
1181                                            &sub_array_iter));
1182                         *reply = wpas_dbus_error_invalid_args(
1183                                 message,
1184                                 "Wrong Channel struct. Two UINT32s required");
1185                         os_free(freqs);
1186                         return -1;
1187                 }
1188                 dbus_message_iter_get_basic(&sub_array_iter, &freq);
1189
1190                 if (!dbus_message_iter_next(&sub_array_iter) ||
1191                     dbus_message_iter_get_arg_type(&sub_array_iter) !=
1192                     DBUS_TYPE_UINT32) {
1193                         wpa_printf(MSG_DEBUG,
1194                                    "%s[dbus]: Channel must by specified by struct of two UINT32s",
1195                                    __func__);
1196                         *reply = wpas_dbus_error_invalid_args(
1197                                 message,
1198                                 "Wrong Channel struct. Two UINT32s required");
1199                         os_free(freqs);
1200                         return -1;
1201                 }
1202
1203                 dbus_message_iter_get_basic(&sub_array_iter, &width);
1204
1205 #define FREQS_ALLOC_CHUNK 32
1206                 if (freqs_num % FREQS_ALLOC_CHUNK == 0) {
1207                         nfreqs = os_realloc_array(
1208                                 freqs, freqs_num + FREQS_ALLOC_CHUNK,
1209                                 sizeof(int));
1210                         if (nfreqs == NULL)
1211                                 os_free(freqs);
1212                         freqs = nfreqs;
1213                 }
1214                 if (freqs == NULL) {
1215                         *reply = wpas_dbus_error_no_memory(message);
1216                         return -1;
1217                 }
1218
1219                 freqs[freqs_num] = freq;
1220
1221                 freqs_num++;
1222                 dbus_message_iter_next(&array_iter);
1223         }
1224
1225         nfreqs = os_realloc_array(freqs, freqs_num + 1, sizeof(int));
1226         if (nfreqs == NULL)
1227                 os_free(freqs);
1228         freqs = nfreqs;
1229         if (freqs == NULL) {
1230                 *reply = wpas_dbus_error_no_memory(message);
1231                 return -1;
1232         }
1233         freqs[freqs_num] = 0;
1234
1235         params->freqs = freqs;
1236         return 0;
1237 }
1238
1239
1240 static int wpas_dbus_get_scan_allow_roam(DBusMessage *message,
1241                                          DBusMessageIter *var,
1242                                          dbus_bool_t *allow,
1243                                          DBusMessage **reply)
1244 {
1245         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_BOOLEAN) {
1246                 wpa_printf(MSG_DEBUG, "%s[dbus]: Type must be a boolean",
1247                            __func__);
1248                 *reply = wpas_dbus_error_invalid_args(
1249                         message, "Wrong Type value type. Boolean required");
1250                 return -1;
1251         }
1252         dbus_message_iter_get_basic(var, allow);
1253         return 0;
1254 }
1255
1256
1257 /**
1258  * wpas_dbus_handler_scan - Request a wireless scan on an interface
1259  * @message: Pointer to incoming dbus message
1260  * @wpa_s: wpa_supplicant structure for a network interface
1261  * Returns: NULL indicating success or DBus error message on failure
1262  *
1263  * Handler function for "Scan" method call of a network device. Requests
1264  * that wpa_supplicant perform a wireless scan as soon as possible
1265  * on a particular wireless interface.
1266  */
1267 DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
1268                                      struct wpa_supplicant *wpa_s)
1269 {
1270         DBusMessage *reply = NULL;
1271         DBusMessageIter iter, dict_iter, entry_iter, variant_iter;
1272         char *key = NULL, *type = NULL;
1273         struct wpa_driver_scan_params params;
1274         size_t i;
1275         dbus_bool_t allow_roam = 1;
1276
1277         os_memset(&params, 0, sizeof(params));
1278
1279         dbus_message_iter_init(message, &iter);
1280
1281         dbus_message_iter_recurse(&iter, &dict_iter);
1282
1283         while (dbus_message_iter_get_arg_type(&dict_iter) ==
1284                DBUS_TYPE_DICT_ENTRY) {
1285                 dbus_message_iter_recurse(&dict_iter, &entry_iter);
1286                 dbus_message_iter_get_basic(&entry_iter, &key);
1287                 dbus_message_iter_next(&entry_iter);
1288                 dbus_message_iter_recurse(&entry_iter, &variant_iter);
1289
1290                 if (os_strcmp(key, "Type") == 0) {
1291                         if (wpas_dbus_get_scan_type(message, &variant_iter,
1292                                                     &type, &reply) < 0)
1293                                 goto out;
1294                 } else if (os_strcmp(key, "SSIDs") == 0) {
1295                         if (wpas_dbus_get_scan_ssids(message, &variant_iter,
1296                                                      &params, &reply) < 0)
1297                                 goto out;
1298                 } else if (os_strcmp(key, "IEs") == 0) {
1299                         if (wpas_dbus_get_scan_ies(message, &variant_iter,
1300                                                    &params, &reply) < 0)
1301                                 goto out;
1302                 } else if (os_strcmp(key, "Channels") == 0) {
1303                         if (wpas_dbus_get_scan_channels(message, &variant_iter,
1304                                                         &params, &reply) < 0)
1305                                 goto out;
1306                 } else if (os_strcmp(key, "AllowRoam") == 0) {
1307                         if (wpas_dbus_get_scan_allow_roam(message,
1308                                                           &variant_iter,
1309                                                           &allow_roam,
1310                                                           &reply) < 0)
1311                                 goto out;
1312                 } else {
1313                         wpa_printf(MSG_DEBUG, "%s[dbus]: Unknown argument %s",
1314                                    __func__, key);
1315                         reply = wpas_dbus_error_invalid_args(message, key);
1316                         goto out;
1317                 }
1318
1319                 dbus_message_iter_next(&dict_iter);
1320         }
1321
1322         if (!type) {
1323                 wpa_printf(MSG_DEBUG, "%s[dbus]: Scan type not specified",
1324                            __func__);
1325                 reply = wpas_dbus_error_invalid_args(message, key);
1326                 goto out;
1327         }
1328
1329         if (os_strcmp(type, "passive") == 0) {
1330                 if (params.num_ssids || params.extra_ies_len) {
1331                         wpa_printf(MSG_DEBUG,
1332                                    "%s[dbus]: SSIDs or IEs specified for passive scan.",
1333                                    __func__);
1334                         reply = wpas_dbus_error_invalid_args(
1335                                 message,
1336                                 "You can specify only Channels in passive scan");
1337                         goto out;
1338                 } else {
1339                         if (wpa_s->sched_scanning) {
1340                                 wpa_printf(MSG_DEBUG,
1341                                            "%s[dbus]: Stop ongoing sched_scan to allow requested scan to proceed",
1342                                            __func__);
1343                                 wpa_supplicant_cancel_sched_scan(wpa_s);
1344                         }
1345
1346                         if (params.freqs && params.freqs[0]) {
1347                                 wpa_s->last_scan_req = MANUAL_SCAN_REQ;
1348                                 if (wpa_supplicant_trigger_scan(wpa_s,
1349                                                                 &params)) {
1350                                         reply = wpas_dbus_error_scan_error(
1351                                                 message,
1352                                                 "Scan request rejected");
1353                                 }
1354                         } else {
1355                                 wpa_s->scan_req = MANUAL_SCAN_REQ;
1356                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
1357                         }
1358                 }
1359         } else if (os_strcmp(type, "active") == 0) {
1360                 if (!params.num_ssids) {
1361                         /* Add wildcard ssid */
1362                         params.num_ssids++;
1363                 }
1364 #ifdef CONFIG_AUTOSCAN
1365                 autoscan_deinit(wpa_s);
1366 #endif /* CONFIG_AUTOSCAN */
1367                 if (wpa_s->sched_scanning) {
1368                         wpa_printf(MSG_DEBUG,
1369                                    "%s[dbus]: Stop ongoing sched_scan to allow requested scan to proceed",
1370                                    __func__);
1371                         wpa_supplicant_cancel_sched_scan(wpa_s);
1372                 }
1373
1374                 wpa_s->last_scan_req = MANUAL_SCAN_REQ;
1375                 if (wpa_supplicant_trigger_scan(wpa_s, &params)) {
1376                         reply = wpas_dbus_error_scan_error(
1377                                 message, "Scan request rejected");
1378                 }
1379         } else {
1380                 wpa_printf(MSG_DEBUG, "%s[dbus]: Unknown scan type: %s",
1381                            __func__, type);
1382                 reply = wpas_dbus_error_invalid_args(message,
1383                                                      "Wrong scan type");
1384                 goto out;
1385         }
1386
1387         if (!allow_roam)
1388                 wpa_s->scan_res_handler = scan_only_handler;
1389
1390 out:
1391         for (i = 0; i < WPAS_MAX_SCAN_SSIDS; i++)
1392                 os_free((u8 *) params.ssids[i].ssid);
1393         os_free((u8 *) params.extra_ies);
1394         os_free(params.freqs);
1395         return reply;
1396 }
1397
1398
1399 /**
1400  * wpas_dbus_handler_signal_poll - Request immediate signal properties
1401  * @message: Pointer to incoming dbus message
1402  * @wpa_s: wpa_supplicant structure for a network interface
1403  * Returns: NULL indicating success or DBus error message on failure
1404  *
1405  * Handler function for "SignalPoll" method call of a network device. Requests
1406  * that wpa_supplicant read signal properties like RSSI, noise, and link
1407  * speed and return them.
1408  */
1409 DBusMessage * wpas_dbus_handler_signal_poll(DBusMessage *message,
1410                                             struct wpa_supplicant *wpa_s)
1411 {
1412         struct wpa_signal_info si;
1413         DBusMessage *reply = NULL;
1414         DBusMessageIter iter, iter_dict, variant_iter;
1415         int ret;
1416
1417         ret = wpa_drv_signal_poll(wpa_s, &si);
1418         if (ret) {
1419                 return dbus_message_new_error(message, DBUS_ERROR_FAILED,
1420                                               "Failed to read signal");
1421         }
1422
1423         reply = dbus_message_new_method_return(message);
1424         if (reply == NULL)
1425                 goto nomem;
1426
1427         dbus_message_iter_init_append(reply, &iter);
1428
1429         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
1430                                               "a{sv}", &variant_iter) ||
1431             !wpa_dbus_dict_open_write(&variant_iter, &iter_dict) ||
1432             !wpa_dbus_dict_append_int32(&iter_dict, "rssi",
1433                                         si.current_signal) ||
1434             !wpa_dbus_dict_append_int32(&iter_dict, "linkspeed",
1435                                         si.current_txrate / 1000) ||
1436             !wpa_dbus_dict_append_int32(&iter_dict, "noise",
1437                                         si.current_noise) ||
1438             !wpa_dbus_dict_append_uint32(&iter_dict, "frequency",
1439                                          si.frequency) ||
1440             (si.chanwidth != CHAN_WIDTH_UNKNOWN &&
1441              !wpa_dbus_dict_append_string(
1442                      &iter_dict, "width",
1443                      channel_width_to_string(si.chanwidth))) ||
1444             (si.center_frq1 > 0 && si.center_frq2 > 0 &&
1445              (!wpa_dbus_dict_append_int32(&iter_dict, "center-frq1",
1446                                           si.center_frq1) ||
1447               !wpa_dbus_dict_append_int32(&iter_dict, "center-frq2",
1448                                           si.center_frq2))) ||
1449             (si.avg_signal &&
1450              !wpa_dbus_dict_append_int32(&iter_dict, "avg-rssi",
1451                                          si.avg_signal)) ||
1452             !wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
1453             !dbus_message_iter_close_container(&iter, &variant_iter))
1454                 goto nomem;
1455
1456         return reply;
1457
1458 nomem:
1459         if (reply)
1460                 dbus_message_unref(reply);
1461         return wpas_dbus_error_no_memory(message);
1462 }
1463
1464
1465 /*
1466  * wpas_dbus_handler_disconnect - Terminate the current connection
1467  * @message: Pointer to incoming dbus message
1468  * @wpa_s: wpa_supplicant structure for a network interface
1469  * Returns: NotConnected DBus error message if already not connected
1470  * or NULL otherwise.
1471  *
1472  * Handler function for "Disconnect" method call of network interface.
1473  */
1474 DBusMessage * wpas_dbus_handler_disconnect(DBusMessage *message,
1475                                            struct wpa_supplicant *wpa_s)
1476 {
1477         if (wpa_s->current_ssid != NULL) {
1478                 wpas_request_disconnection(wpa_s);
1479                 return NULL;
1480         }
1481
1482         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1483                                       "This interface is not connected");
1484 }
1485
1486
1487 /**
1488  * wpas_dbus_new_iface_add_network - Add a new configured network
1489  * @message: Pointer to incoming dbus message
1490  * @wpa_s: wpa_supplicant structure for a network interface
1491  * Returns: A dbus message containing the object path of the new network
1492  *
1493  * Handler function for "AddNetwork" method call of a network interface.
1494  */
1495 DBusMessage * wpas_dbus_handler_add_network(DBusMessage *message,
1496                                             struct wpa_supplicant *wpa_s)
1497 {
1498         DBusMessage *reply = NULL;
1499         DBusMessageIter iter;
1500         struct wpa_ssid *ssid = NULL;
1501         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
1502         DBusError error;
1503
1504         dbus_message_iter_init(message, &iter);
1505
1506         if (wpa_s->dbus_new_path)
1507                 ssid = wpa_supplicant_add_network(wpa_s);
1508         if (ssid == NULL) {
1509                 wpa_printf(MSG_ERROR, "%s[dbus]: can't add new interface.",
1510                            __func__);
1511                 reply = wpas_dbus_error_unknown_error(
1512                         message,
1513                         "wpa_supplicant could not add a network on this interface.");
1514                 goto err;
1515         }
1516
1517         dbus_error_init(&error);
1518         if (!set_network_properties(wpa_s, ssid, &iter, &error)) {
1519                 wpa_printf(MSG_DEBUG,
1520                            "%s[dbus]: control interface couldn't set network properties",
1521                            __func__);
1522                 reply = wpas_dbus_reply_new_from_error(message, &error,
1523                                                        DBUS_ERROR_INVALID_ARGS,
1524                                                        "Failed to add network");
1525                 dbus_error_free(&error);
1526                 goto err;
1527         }
1528
1529         /* Construct the object path for this network. */
1530         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
1531                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
1532                     wpa_s->dbus_new_path, ssid->id);
1533
1534         reply = dbus_message_new_method_return(message);
1535         if (reply == NULL) {
1536                 reply = wpas_dbus_error_no_memory(message);
1537                 goto err;
1538         }
1539         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
1540                                       DBUS_TYPE_INVALID)) {
1541                 dbus_message_unref(reply);
1542                 reply = wpas_dbus_error_no_memory(message);
1543                 goto err;
1544         }
1545
1546         return reply;
1547
1548 err:
1549         if (ssid) {
1550                 wpas_notify_network_removed(wpa_s, ssid);
1551                 wpa_config_remove_network(wpa_s->conf, ssid->id);
1552         }
1553         return reply;
1554 }
1555
1556
1557 /**
1558  * wpas_dbus_handler_reassociate - Reassociate
1559  * @message: Pointer to incoming dbus message
1560  * @wpa_s: wpa_supplicant structure for a network interface
1561  * Returns: InterfaceDisabled DBus error message if disabled
1562  * or NULL otherwise.
1563  *
1564  * Handler function for "Reassociate" method call of network interface.
1565  */
1566 DBusMessage * wpas_dbus_handler_reassociate(DBusMessage *message,
1567                                             struct wpa_supplicant *wpa_s)
1568 {
1569         if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) {
1570                 wpas_request_connection(wpa_s);
1571                 return NULL;
1572         }
1573
1574         return dbus_message_new_error(message, WPAS_DBUS_ERROR_IFACE_DISABLED,
1575                                       "This interface is disabled");
1576 }
1577
1578
1579 /**
1580  * wpas_dbus_handler_expect_disconnect - ExpectDisconnect
1581  * @message: Pointer to incoming dbus message
1582  * @global: %wpa_supplicant global data structure
1583  * Returns: NULL
1584  *
1585  * Handler function for notifying system there will be a expected disconnect.
1586  * This will prevent wpa_supplicant from adding blacklists upon next disconnect..
1587  */
1588 DBusMessage * wpas_dbus_handler_expect_disconnect(DBusMessage *message,
1589                                                   struct wpa_global *global)
1590 {
1591         struct wpa_supplicant *wpa_s = global->ifaces;
1592
1593         for (; wpa_s; wpa_s = wpa_s->next)
1594                 if (wpa_s->wpa_state >= WPA_ASSOCIATED)
1595                         wpa_s->own_disconnect_req = 1;
1596         return NULL;
1597 }
1598
1599
1600 /**
1601  * wpas_dbus_handler_reattach - Reattach to current AP
1602  * @message: Pointer to incoming dbus message
1603  * @wpa_s: wpa_supplicant structure for a network interface
1604  * Returns: NotConnected DBus error message if not connected
1605  * or NULL otherwise.
1606  *
1607  * Handler function for "Reattach" method call of network interface.
1608  */
1609 DBusMessage * wpas_dbus_handler_reattach(DBusMessage *message,
1610                                          struct wpa_supplicant *wpa_s)
1611 {
1612         if (wpa_s->current_ssid != NULL) {
1613                 wpa_s->reattach = 1;
1614                 wpas_request_connection(wpa_s);
1615                 return NULL;
1616         }
1617
1618         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1619                                       "This interface is not connected");
1620 }
1621
1622
1623 /**
1624  * wpas_dbus_handler_reconnect - Reconnect if disconnected
1625  * @message: Pointer to incoming dbus message
1626  * @wpa_s: wpa_supplicant structure for a network interface
1627  * Returns: InterfaceDisabled DBus error message if disabled
1628  * or NULL otherwise.
1629  *
1630  * Handler function for "Reconnect" method call of network interface.
1631  */
1632 DBusMessage * wpas_dbus_handler_reconnect(DBusMessage *message,
1633                 struct wpa_supplicant *wpa_s)
1634 {
1635         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1636                 return dbus_message_new_error(message,
1637                                               WPAS_DBUS_ERROR_IFACE_DISABLED,
1638                                               "This interface is disabled");
1639         }
1640
1641         if (wpa_s->disconnected)
1642                 wpas_request_connection(wpa_s);
1643         return NULL;
1644 }
1645
1646
1647 /**
1648  * wpas_dbus_handler_remove_network - Remove a configured network
1649  * @message: Pointer to incoming dbus message
1650  * @wpa_s: wpa_supplicant structure for a network interface
1651  * Returns: NULL on success or dbus error on failure
1652  *
1653  * Handler function for "RemoveNetwork" method call of a network interface.
1654  */
1655 DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
1656                                                struct wpa_supplicant *wpa_s)
1657 {
1658         DBusMessage *reply = NULL;
1659         const char *op;
1660         char *iface, *net_id;
1661         int id;
1662         int result;
1663
1664         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1665                               DBUS_TYPE_INVALID);
1666
1667         /* Extract the network ID and ensure the network */
1668         /* is actually a child of this interface */
1669         iface = wpas_dbus_new_decompose_object_path(op,
1670                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1671                                                     &net_id);
1672         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1673             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1674                 reply = wpas_dbus_error_invalid_args(message, op);
1675                 goto out;
1676         }
1677
1678         errno = 0;
1679         id = strtoul(net_id, NULL, 10);
1680         if (errno != 0) {
1681                 reply = wpas_dbus_error_invalid_args(message, op);
1682                 goto out;
1683         }
1684
1685         result = wpa_supplicant_remove_network(wpa_s, id);
1686         if (result == -1) {
1687                 reply = wpas_dbus_error_network_unknown(message);
1688                 goto out;
1689         }
1690         if (result == -2) {
1691                 wpa_printf(MSG_ERROR,
1692                            "%s[dbus]: error occurred when removing network %d",
1693                            __func__, id);
1694                 reply = wpas_dbus_error_unknown_error(
1695                         message,
1696                         "error removing the specified network on is interface.");
1697                 goto out;
1698         }
1699
1700 out:
1701         os_free(iface);
1702         return reply;
1703 }
1704
1705
1706 static void remove_network(void *arg, struct wpa_ssid *ssid)
1707 {
1708         struct wpa_supplicant *wpa_s = arg;
1709
1710         wpas_notify_network_removed(wpa_s, ssid);
1711
1712         if (wpa_config_remove_network(wpa_s->conf, ssid->id) < 0) {
1713                 wpa_printf(MSG_ERROR,
1714                            "%s[dbus]: error occurred when removing network %d",
1715                            __func__, ssid->id);
1716                 return;
1717         }
1718
1719         if (ssid == wpa_s->current_ssid)
1720                 wpa_supplicant_deauthenticate(wpa_s,
1721                                               WLAN_REASON_DEAUTH_LEAVING);
1722 }
1723
1724
1725 /**
1726  * wpas_dbus_handler_remove_all_networks - Remove all configured networks
1727  * @message: Pointer to incoming dbus message
1728  * @wpa_s: wpa_supplicant structure for a network interface
1729  * Returns: NULL on success or dbus error on failure
1730  *
1731  * Handler function for "RemoveAllNetworks" method call of a network interface.
1732  */
1733 DBusMessage * wpas_dbus_handler_remove_all_networks(
1734         DBusMessage *message, struct wpa_supplicant *wpa_s)
1735 {
1736         if (wpa_s->sched_scanning)
1737                 wpa_supplicant_cancel_sched_scan(wpa_s);
1738
1739         /* NB: could check for failure and return an error */
1740         wpa_config_foreach_network(wpa_s->conf, remove_network, wpa_s);
1741         return NULL;
1742 }
1743
1744
1745 /**
1746  * wpas_dbus_handler_select_network - Attempt association with a network
1747  * @message: Pointer to incoming dbus message
1748  * @wpa_s: wpa_supplicant structure for a network interface
1749  * Returns: NULL on success or dbus error on failure
1750  *
1751  * Handler function for "SelectNetwork" method call of network interface.
1752  */
1753 DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
1754                                                struct wpa_supplicant *wpa_s)
1755 {
1756         DBusMessage *reply = NULL;
1757         const char *op;
1758         char *iface, *net_id;
1759         int id;
1760         struct wpa_ssid *ssid;
1761
1762         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1763                               DBUS_TYPE_INVALID);
1764
1765         /* Extract the network ID and ensure the network */
1766         /* is actually a child of this interface */
1767         iface = wpas_dbus_new_decompose_object_path(op,
1768                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1769                                                     &net_id);
1770         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1771             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1772                 reply = wpas_dbus_error_invalid_args(message, op);
1773                 goto out;
1774         }
1775
1776         errno = 0;
1777         id = strtoul(net_id, NULL, 10);
1778         if (errno != 0) {
1779                 reply = wpas_dbus_error_invalid_args(message, op);
1780                 goto out;
1781         }
1782
1783         ssid = wpa_config_get_network(wpa_s->conf, id);
1784         if (ssid == NULL) {
1785                 reply = wpas_dbus_error_network_unknown(message);
1786                 goto out;
1787         }
1788
1789         /* Finally, associate with the network */
1790         wpa_supplicant_select_network(wpa_s, ssid);
1791
1792 out:
1793         os_free(iface);
1794         return reply;
1795 }
1796
1797
1798 /**
1799  * wpas_dbus_handler_network_reply - Reply to a NetworkRequest signal
1800  * @message: Pointer to incoming dbus message
1801  * @wpa_s: wpa_supplicant structure for a network interface
1802  * Returns: NULL on success or dbus error on failure
1803  *
1804  * Handler function for "NetworkReply" method call of network interface.
1805  */
1806 DBusMessage * wpas_dbus_handler_network_reply(DBusMessage *message,
1807                                               struct wpa_supplicant *wpa_s)
1808 {
1809 #ifdef IEEE8021X_EAPOL
1810         DBusMessage *reply = NULL;
1811         const char *op, *field, *value;
1812         char *iface, *net_id;
1813         int id;
1814         struct wpa_ssid *ssid;
1815
1816         if (!dbus_message_get_args(message, NULL,
1817                                    DBUS_TYPE_OBJECT_PATH, &op,
1818                                    DBUS_TYPE_STRING, &field,
1819                                    DBUS_TYPE_STRING, &value,
1820                                    DBUS_TYPE_INVALID))
1821                 return wpas_dbus_error_invalid_args(message, NULL);
1822
1823         /* Extract the network ID and ensure the network */
1824         /* is actually a child of this interface */
1825         iface = wpas_dbus_new_decompose_object_path(op,
1826                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1827                                                     &net_id);
1828         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1829             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1830                 reply = wpas_dbus_error_invalid_args(message, op);
1831                 goto out;
1832         }
1833
1834         errno = 0;
1835         id = strtoul(net_id, NULL, 10);
1836         if (errno != 0) {
1837                 reply = wpas_dbus_error_invalid_args(message, net_id);
1838                 goto out;
1839         }
1840
1841         ssid = wpa_config_get_network(wpa_s->conf, id);
1842         if (ssid == NULL) {
1843                 reply = wpas_dbus_error_network_unknown(message);
1844                 goto out;
1845         }
1846
1847         if (wpa_supplicant_ctrl_iface_ctrl_rsp_handle(wpa_s, ssid,
1848                                                       field, value) < 0)
1849                 reply = wpas_dbus_error_invalid_args(message, field);
1850         else {
1851                 /* Tell EAP to retry immediately */
1852                 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1853         }
1854
1855 out:
1856         os_free(iface);
1857         return reply;
1858 #else /* IEEE8021X_EAPOL */
1859         wpa_printf(MSG_DEBUG, "dbus: 802.1X not included");
1860         return wpas_dbus_error_unknown_error(message, "802.1X not included");
1861 #endif /* IEEE8021X_EAPOL */
1862 }
1863
1864
1865 #ifndef CONFIG_NO_CONFIG_BLOBS
1866
1867 /**
1868  * wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
1869  * @message: Pointer to incoming dbus message
1870  * @wpa_s: %wpa_supplicant data structure
1871  * Returns: A dbus message containing an error on failure or NULL on success
1872  *
1873  * Asks wpa_supplicant to internally store a binary blobs.
1874  */
1875 DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
1876                                          struct wpa_supplicant *wpa_s)
1877 {
1878         DBusMessage *reply = NULL;
1879         DBusMessageIter iter, array_iter;
1880
1881         char *blob_name;
1882         u8 *blob_data;
1883         int blob_len;
1884         struct wpa_config_blob *blob = NULL;
1885
1886         dbus_message_iter_init(message, &iter);
1887         dbus_message_iter_get_basic(&iter, &blob_name);
1888
1889         if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
1890                 return dbus_message_new_error(message,
1891                                               WPAS_DBUS_ERROR_BLOB_EXISTS,
1892                                               NULL);
1893         }
1894
1895         dbus_message_iter_next(&iter);
1896         dbus_message_iter_recurse(&iter, &array_iter);
1897
1898         dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
1899
1900         blob = os_zalloc(sizeof(*blob));
1901         if (!blob) {
1902                 reply = wpas_dbus_error_no_memory(message);
1903                 goto err;
1904         }
1905
1906         blob->data = os_malloc(blob_len);
1907         blob->name = os_strdup(blob_name);
1908         if (!blob->data || !blob->name) {
1909                 reply = wpas_dbus_error_no_memory(message);
1910                 goto err;
1911         }
1912         os_memcpy(blob->data, blob_data, blob_len);
1913         blob->len = blob_len;
1914
1915         wpa_config_set_blob(wpa_s->conf, blob);
1916         wpas_notify_blob_added(wpa_s, blob->name);
1917
1918         return reply;
1919
1920 err:
1921         if (blob) {
1922                 os_free(blob->name);
1923                 os_free(blob->data);
1924                 os_free(blob);
1925         }
1926         return reply;
1927 }
1928
1929
1930 /**
1931  * wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
1932  * @message: Pointer to incoming dbus message
1933  * @wpa_s: %wpa_supplicant data structure
1934  * Returns: A dbus message containing array of bytes (blob)
1935  *
1936  * Gets one wpa_supplicant's binary blobs.
1937  */
1938 DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
1939                                          struct wpa_supplicant *wpa_s)
1940 {
1941         DBusMessage *reply = NULL;
1942         DBusMessageIter iter, array_iter;
1943
1944         char *blob_name;
1945         const struct wpa_config_blob *blob;
1946
1947         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1948                               DBUS_TYPE_INVALID);
1949
1950         blob = wpa_config_get_blob(wpa_s->conf, blob_name);
1951         if (!blob) {
1952                 return dbus_message_new_error(message,
1953                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1954                                               "Blob id not set");
1955         }
1956
1957         reply = dbus_message_new_method_return(message);
1958         if (!reply)
1959                 return wpas_dbus_error_no_memory(message);
1960
1961         dbus_message_iter_init_append(reply, &iter);
1962
1963         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
1964                                               DBUS_TYPE_BYTE_AS_STRING,
1965                                               &array_iter) ||
1966             !dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
1967                                                   &(blob->data), blob->len) ||
1968             !dbus_message_iter_close_container(&iter, &array_iter)) {
1969                 dbus_message_unref(reply);
1970                 reply = wpas_dbus_error_no_memory(message);
1971         }
1972
1973         return reply;
1974 }
1975
1976
1977 /**
1978  * wpas_remove_handler_remove_blob - Remove named binary blob
1979  * @message: Pointer to incoming dbus message
1980  * @wpa_s: %wpa_supplicant data structure
1981  * Returns: NULL on success or dbus error
1982  *
1983  * Asks wpa_supplicant to internally remove a binary blobs.
1984  */
1985 DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
1986                                             struct wpa_supplicant *wpa_s)
1987 {
1988         DBusMessage *reply = NULL;
1989         char *blob_name;
1990
1991         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1992                               DBUS_TYPE_INVALID);
1993
1994         if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
1995                 return dbus_message_new_error(message,
1996                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1997                                               "Blob id not set");
1998         }
1999         wpas_notify_blob_removed(wpa_s, blob_name);
2000
2001         return reply;
2002
2003 }
2004
2005 #endif /* CONFIG_NO_CONFIG_BLOBS */
2006
2007
2008 /*
2009  * wpas_dbus_handler_flush_bss - Flush the BSS cache
2010  * @message: Pointer to incoming dbus message
2011  * @wpa_s: wpa_supplicant structure for a network interface
2012  * Returns: NULL
2013  *
2014  * Handler function for "FlushBSS" method call of network interface.
2015  */
2016 DBusMessage * wpas_dbus_handler_flush_bss(DBusMessage *message,
2017                                           struct wpa_supplicant *wpa_s)
2018 {
2019         dbus_uint32_t age;
2020
2021         dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &age,
2022                               DBUS_TYPE_INVALID);
2023
2024         if (age == 0)
2025                 wpa_bss_flush(wpa_s);
2026         else
2027                 wpa_bss_flush_by_age(wpa_s, age);
2028
2029         return NULL;
2030 }
2031
2032
2033 #ifdef CONFIG_AUTOSCAN
2034 /**
2035  * wpas_dbus_handler_autoscan - Set autoscan parameters for the interface
2036  * @message: Pointer to incoming dbus message
2037  * @wpa_s: wpa_supplicant structure for a network interface
2038  * Returns: NULL
2039  *
2040  * Handler function for "AutoScan" method call of network interface.
2041  */
2042 DBusMessage * wpas_dbus_handler_autoscan(DBusMessage *message,
2043                                          struct wpa_supplicant *wpa_s)
2044 {
2045         DBusMessage *reply = NULL;
2046         enum wpa_states state = wpa_s->wpa_state;
2047         char *arg;
2048
2049         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg,
2050                               DBUS_TYPE_INVALID);
2051
2052         if (arg != NULL && os_strlen(arg) > 0) {
2053                 char *tmp;
2054
2055                 tmp = os_strdup(arg);
2056                 if (tmp == NULL) {
2057                         reply = wpas_dbus_error_no_memory(message);
2058                 } else {
2059                         os_free(wpa_s->conf->autoscan);
2060                         wpa_s->conf->autoscan = tmp;
2061                         if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
2062                                 autoscan_init(wpa_s, 1);
2063                         else if (state == WPA_SCANNING)
2064                                 wpa_supplicant_reinit_autoscan(wpa_s);
2065                 }
2066         } else if (arg != NULL && os_strlen(arg) == 0) {
2067                 os_free(wpa_s->conf->autoscan);
2068                 wpa_s->conf->autoscan = NULL;
2069                 autoscan_deinit(wpa_s);
2070         } else
2071                 reply = dbus_message_new_error(message,
2072                                                DBUS_ERROR_INVALID_ARGS,
2073                                                NULL);
2074
2075         return reply;
2076 }
2077 #endif /* CONFIG_AUTOSCAN */
2078
2079
2080 /*
2081  * wpas_dbus_handler_eap_logoff - IEEE 802.1X EAPOL state machine logoff
2082  * @message: Pointer to incoming dbus message
2083  * @wpa_s: wpa_supplicant structure for a network interface
2084  * Returns: NULL
2085  *
2086  * Handler function for "EAPLogoff" method call of network interface.
2087  */
2088 DBusMessage * wpas_dbus_handler_eap_logoff(DBusMessage *message,
2089                                            struct wpa_supplicant *wpa_s)
2090 {
2091         eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
2092         return NULL;
2093 }
2094
2095
2096 /*
2097  * wpas_dbus_handler_eap_logon - IEEE 802.1X EAPOL state machine logon
2098  * @message: Pointer to incoming dbus message
2099  * @wpa_s: wpa_supplicant structure for a network interface
2100  * Returns: NULL
2101  *
2102  * Handler function for "EAPLogin" method call of network interface.
2103  */
2104 DBusMessage * wpas_dbus_handler_eap_logon(DBusMessage *message,
2105                                           struct wpa_supplicant *wpa_s)
2106 {
2107         eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
2108         return NULL;
2109 }
2110
2111
2112 #ifdef CONFIG_TDLS
2113
2114 static int get_peer_hwaddr_helper(DBusMessage *message, const char *func_name,
2115                                   u8 *peer_address, DBusMessage **error)
2116 {
2117         const char *peer_string;
2118
2119         *error = NULL;
2120
2121         if (!dbus_message_get_args(message, NULL,
2122                                    DBUS_TYPE_STRING, &peer_string,
2123                                    DBUS_TYPE_INVALID)) {
2124                 *error = wpas_dbus_error_invalid_args(message, NULL);
2125                 return -1;
2126         }
2127
2128         if (hwaddr_aton(peer_string, peer_address)) {
2129                 wpa_printf(MSG_DEBUG, "%s: invalid address '%s'",
2130                            func_name, peer_string);
2131                 *error = wpas_dbus_error_invalid_args(
2132                         message, "Invalid hardware address format");
2133                 return -1;
2134         }
2135
2136         return 0;
2137 }
2138
2139
2140 /*
2141  * wpas_dbus_handler_tdls_discover - Discover TDLS peer
2142  * @message: Pointer to incoming dbus message
2143  * @wpa_s: wpa_supplicant structure for a network interface
2144  * Returns: NULL indicating success or DBus error message on failure
2145  *
2146  * Handler function for "TDLSDiscover" method call of network interface.
2147  */
2148 DBusMessage * wpas_dbus_handler_tdls_discover(DBusMessage *message,
2149                                               struct wpa_supplicant *wpa_s)
2150 {
2151         u8 peer[ETH_ALEN];
2152         DBusMessage *error_reply;
2153         int ret;
2154
2155         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2156                 return error_reply;
2157
2158         wpa_printf(MSG_DEBUG, "DBUS TDLS_DISCOVER " MACSTR, MAC2STR(peer));
2159
2160         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2161                 ret = wpa_tdls_send_discovery_request(wpa_s->wpa, peer);
2162         else
2163                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_DISCOVERY_REQ, peer);
2164
2165         if (ret) {
2166                 return wpas_dbus_error_unknown_error(
2167                         message, "error performing TDLS discovery");
2168         }
2169
2170         return NULL;
2171 }
2172
2173
2174 /*
2175  * wpas_dbus_handler_tdls_setup - Setup TDLS session
2176  * @message: Pointer to incoming dbus message
2177  * @wpa_s: wpa_supplicant structure for a network interface
2178  * Returns: NULL indicating success or DBus error message on failure
2179  *
2180  * Handler function for "TDLSSetup" method call of network interface.
2181  */
2182 DBusMessage * wpas_dbus_handler_tdls_setup(DBusMessage *message,
2183                                            struct wpa_supplicant *wpa_s)
2184 {
2185         u8 peer[ETH_ALEN];
2186         DBusMessage *error_reply;
2187         int ret;
2188
2189         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2190                 return error_reply;
2191
2192         wpa_printf(MSG_DEBUG, "DBUS TDLS_SETUP " MACSTR, MAC2STR(peer));
2193
2194         wpa_tdls_remove(wpa_s->wpa, peer);
2195         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2196                 ret = wpa_tdls_start(wpa_s->wpa, peer);
2197         else
2198                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);
2199
2200         if (ret) {
2201                 return wpas_dbus_error_unknown_error(
2202                         message, "error performing TDLS setup");
2203         }
2204
2205         return NULL;
2206 }
2207
2208
2209 /*
2210  * wpas_dbus_handler_tdls_status - Return TDLS session status
2211  * @message: Pointer to incoming dbus message
2212  * @wpa_s: wpa_supplicant structure for a network interface
2213  * Returns: A string representing the state of the link to this TDLS peer
2214  *
2215  * Handler function for "TDLSStatus" method call of network interface.
2216  */
2217 DBusMessage * wpas_dbus_handler_tdls_status(DBusMessage *message,
2218                                             struct wpa_supplicant *wpa_s)
2219 {
2220         u8 peer[ETH_ALEN];
2221         DBusMessage *reply;
2222         const char *tdls_status;
2223
2224         if (get_peer_hwaddr_helper(message, __func__, peer, &reply) < 0)
2225                 return reply;
2226
2227         wpa_printf(MSG_DEBUG, "DBUS TDLS_STATUS " MACSTR, MAC2STR(peer));
2228
2229         tdls_status = wpa_tdls_get_link_status(wpa_s->wpa, peer);
2230
2231         reply = dbus_message_new_method_return(message);
2232         dbus_message_append_args(reply, DBUS_TYPE_STRING,
2233                                  &tdls_status, DBUS_TYPE_INVALID);
2234         return reply;
2235 }
2236
2237
2238 /*
2239  * wpas_dbus_handler_tdls_teardown - Teardown TDLS session
2240  * @message: Pointer to incoming dbus message
2241  * @wpa_s: wpa_supplicant structure for a network interface
2242  * Returns: NULL indicating success or DBus error message on failure
2243  *
2244  * Handler function for "TDLSTeardown" method call of network interface.
2245  */
2246 DBusMessage * wpas_dbus_handler_tdls_teardown(DBusMessage *message,
2247                                               struct wpa_supplicant *wpa_s)
2248 {
2249         u8 peer[ETH_ALEN];
2250         DBusMessage *error_reply;
2251         int ret;
2252
2253         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2254                 return error_reply;
2255
2256         wpa_printf(MSG_DEBUG, "DBUS TDLS_TEARDOWN " MACSTR, MAC2STR(peer));
2257
2258         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2259                 ret = wpa_tdls_teardown_link(
2260                         wpa_s->wpa, peer,
2261                         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED);
2262         else
2263                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, peer);
2264
2265         if (ret) {
2266                 return wpas_dbus_error_unknown_error(
2267                         message, "error performing TDLS teardown");
2268         }
2269
2270         return NULL;
2271 }
2272
2273 #endif /* CONFIG_TDLS */
2274
2275
2276 #ifndef CONFIG_NO_CONFIG_WRITE
2277 /**
2278  * wpas_dbus_handler_save_config - Save configuration to configuration file
2279  * @message: Pointer to incoming dbus message
2280  * @wpa_s: wpa_supplicant structure for a network interface
2281  * Returns: NULL on Success, Otherwise errror message
2282  *
2283  * Handler function for "SaveConfig" method call of network interface.
2284  */
2285 DBusMessage * wpas_dbus_handler_save_config(DBusMessage *message,
2286                                             struct wpa_supplicant *wpa_s)
2287 {
2288         int ret;
2289
2290         if (!wpa_s->conf->update_config) {
2291                 return wpas_dbus_error_unknown_error(
2292                         message,
2293                         "Not allowed to update configuration (update_config=0)");
2294         }
2295
2296         ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
2297         if (ret)
2298                 return wpas_dbus_error_unknown_error(
2299                         message, "Failed to update configuration");
2300         return NULL;
2301 }
2302 #endif /* CONFIG_NO_CONFIG_WRITE */
2303
2304
2305 /**
2306  * wpas_dbus_handler_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2307  * @message: Pointer to incoming dbus message
2308  * @wpa_s: %wpa_supplicant data structure
2309  * Returns: A dbus message containing an error on failure or NULL on success
2310  *
2311  * Sets the PKCS #11 engine and module path.
2312  */
2313 DBusMessage * wpas_dbus_handler_set_pkcs11_engine_and_module_path(
2314         DBusMessage *message, struct wpa_supplicant *wpa_s)
2315 {
2316         DBusMessageIter iter;
2317         char *value = NULL;
2318         char *pkcs11_engine_path = NULL;
2319         char *pkcs11_module_path = NULL;
2320
2321         dbus_message_iter_init(message, &iter);
2322         dbus_message_iter_get_basic(&iter, &value);
2323         if (value == NULL) {
2324                 return dbus_message_new_error(
2325                         message, DBUS_ERROR_INVALID_ARGS,
2326                         "Invalid pkcs11_engine_path argument");
2327         }
2328         /* Empty path defaults to NULL */
2329         if (os_strlen(value))
2330                 pkcs11_engine_path = value;
2331
2332         dbus_message_iter_next(&iter);
2333         dbus_message_iter_get_basic(&iter, &value);
2334         if (value == NULL) {
2335                 os_free(pkcs11_engine_path);
2336                 return dbus_message_new_error(
2337                         message, DBUS_ERROR_INVALID_ARGS,
2338                         "Invalid pkcs11_module_path argument");
2339         }
2340         /* Empty path defaults to NULL */
2341         if (os_strlen(value))
2342                 pkcs11_module_path = value;
2343
2344         if (wpas_set_pkcs11_engine_and_module_path(wpa_s, pkcs11_engine_path,
2345                                                    pkcs11_module_path))
2346                 return dbus_message_new_error(
2347                         message, DBUS_ERROR_FAILED,
2348                         "Reinit of the EAPOL state machine with the new PKCS #11 engine and module path failed.");
2349
2350         if (wpa_s->dbus_new_path) {
2351                 wpa_dbus_mark_property_changed(
2352                         wpa_s->global->dbus, wpa_s->dbus_new_path,
2353                         WPAS_DBUS_NEW_IFACE_INTERFACE, "PKCS11EnginePath");
2354                 wpa_dbus_mark_property_changed(
2355                         wpa_s->global->dbus, wpa_s->dbus_new_path,
2356                         WPAS_DBUS_NEW_IFACE_INTERFACE, "PKCS11ModulePath");
2357         }
2358
2359         return NULL;
2360 }
2361
2362
2363 /**
2364  * wpas_dbus_getter_capabilities - Return interface capabilities
2365  * @iter: Pointer to incoming dbus message iter
2366  * @error: Location to store error on failure
2367  * @user_data: Function specific data
2368  * Returns: TRUE on success, FALSE on failure
2369  *
2370  * Getter for "Capabilities" property of an interface.
2371  */
2372 dbus_bool_t wpas_dbus_getter_capabilities(
2373         const struct wpa_dbus_property_desc *property_desc,
2374         DBusMessageIter *iter, DBusError *error, void *user_data)
2375 {
2376         struct wpa_supplicant *wpa_s = user_data;
2377         struct wpa_driver_capa capa;
2378         int res;
2379         DBusMessageIter iter_dict, iter_dict_entry, iter_dict_val, iter_array,
2380                 variant_iter;
2381         const char *scans[] = { "active", "passive", "ssid" };
2382
2383         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
2384                                               "a{sv}", &variant_iter) ||
2385             !wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
2386                 goto nomem;
2387
2388         res = wpa_drv_get_capa(wpa_s, &capa);
2389
2390         /***** pairwise cipher */
2391         if (res < 0) {
2392                 const char *args[] = {"ccmp", "tkip", "none"};
2393
2394                 if (!wpa_dbus_dict_append_string_array(
2395                             &iter_dict, "Pairwise", args,
2396                             ARRAY_SIZE(args)))
2397                         goto nomem;
2398         } else {
2399                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
2400                                                       &iter_dict_entry,
2401                                                       &iter_dict_val,
2402                                                       &iter_array) ||
2403                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP_256) &&
2404                      !wpa_dbus_dict_string_array_add_element(
2405                              &iter_array, "ccmp-256")) ||
2406                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP_256) &&
2407                      !wpa_dbus_dict_string_array_add_element(
2408                              &iter_array, "gcmp-256")) ||
2409                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) &&
2410                      !wpa_dbus_dict_string_array_add_element(
2411                              &iter_array, "ccmp")) ||
2412                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) &&
2413                      !wpa_dbus_dict_string_array_add_element(
2414                              &iter_array, "gcmp")) ||
2415                     ((capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) &&
2416                      !wpa_dbus_dict_string_array_add_element(
2417                              &iter_array, "tkip")) ||
2418                     ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) &&
2419                      !wpa_dbus_dict_string_array_add_element(
2420                              &iter_array, "none")) ||
2421                     !wpa_dbus_dict_end_string_array(&iter_dict,
2422                                                     &iter_dict_entry,
2423                                                     &iter_dict_val,
2424                                                     &iter_array))
2425                         goto nomem;
2426         }
2427
2428         /***** group cipher */
2429         if (res < 0) {
2430                 const char *args[] = {
2431                         "ccmp", "tkip", "wep104", "wep40"
2432                 };
2433
2434                 if (!wpa_dbus_dict_append_string_array(
2435                             &iter_dict, "Group", args,
2436                             ARRAY_SIZE(args)))
2437                         goto nomem;
2438         } else {
2439                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
2440                                                       &iter_dict_entry,
2441                                                       &iter_dict_val,
2442                                                       &iter_array) ||
2443                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP_256) &&
2444                      !wpa_dbus_dict_string_array_add_element(
2445                              &iter_array, "ccmp-256")) ||
2446                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP_256) &&
2447                      !wpa_dbus_dict_string_array_add_element(
2448                              &iter_array, "gcmp-256")) ||
2449                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) &&
2450                      !wpa_dbus_dict_string_array_add_element(
2451                              &iter_array, "ccmp")) ||
2452                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) &&
2453                      !wpa_dbus_dict_string_array_add_element(
2454                              &iter_array, "gcmp")) ||
2455                     ((capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) &&
2456                      !wpa_dbus_dict_string_array_add_element(
2457                              &iter_array, "tkip")) ||
2458                     ((capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) &&
2459                      !wpa_dbus_dict_string_array_add_element(
2460                              &iter_array, "wep104")) ||
2461                     ((capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) &&
2462                      !wpa_dbus_dict_string_array_add_element(
2463                              &iter_array, "wep40")) ||
2464                     !wpa_dbus_dict_end_string_array(&iter_dict,
2465                                                     &iter_dict_entry,
2466                                                     &iter_dict_val,
2467                                                     &iter_array))
2468                         goto nomem;
2469         }
2470
2471         /***** key management */
2472         if (res < 0) {
2473                 const char *args[] = {
2474                         "wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
2475 #ifdef CONFIG_WPS
2476                         "wps",
2477 #endif /* CONFIG_WPS */
2478                         "none"
2479                 };
2480                 if (!wpa_dbus_dict_append_string_array(
2481                             &iter_dict, "KeyMgmt", args,
2482                             ARRAY_SIZE(args)))
2483                         goto nomem;
2484         } else {
2485                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
2486                                                       &iter_dict_entry,
2487                                                       &iter_dict_val,
2488                                                       &iter_array) ||
2489                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2490                                                             "none") ||
2491                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2492                                                             "ieee8021x"))
2493                         goto nomem;
2494
2495                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2496                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
2497                         if (!wpa_dbus_dict_string_array_add_element(
2498                                     &iter_array, "wpa-eap") ||
2499                             ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT) &&
2500                              !wpa_dbus_dict_string_array_add_element(
2501                                      &iter_array, "wpa-ft-eap")))
2502                                 goto nomem;
2503
2504 /* TODO: Ensure that driver actually supports sha256 encryption. */
2505 #ifdef CONFIG_IEEE80211W
2506                         if (!wpa_dbus_dict_string_array_add_element(
2507                                     &iter_array, "wpa-eap-sha256"))
2508                                 goto nomem;
2509 #endif /* CONFIG_IEEE80211W */
2510                 }
2511
2512                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2513                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
2514                         if (!wpa_dbus_dict_string_array_add_element(
2515                                     &iter_array, "wpa-psk") ||
2516                             ((capa.key_mgmt &
2517                               WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK) &&
2518                              !wpa_dbus_dict_string_array_add_element(
2519                                      &iter_array, "wpa-ft-psk")))
2520                                 goto nomem;
2521
2522 /* TODO: Ensure that driver actually supports sha256 encryption. */
2523 #ifdef CONFIG_IEEE80211W
2524                         if (!wpa_dbus_dict_string_array_add_element(
2525                                     &iter_array, "wpa-psk-sha256"))
2526                                 goto nomem;
2527 #endif /* CONFIG_IEEE80211W */
2528                 }
2529
2530                 if ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) &&
2531                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2532                                                             "wpa-none"))
2533                         goto nomem;
2534
2535
2536 #ifdef CONFIG_WPS
2537                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
2538                                                             "wps"))
2539                         goto nomem;
2540 #endif /* CONFIG_WPS */
2541
2542                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2543                                                     &iter_dict_entry,
2544                                                     &iter_dict_val,
2545                                                     &iter_array))
2546                         goto nomem;
2547         }
2548
2549         /***** WPA protocol */
2550         if (res < 0) {
2551                 const char *args[] = { "rsn", "wpa" };
2552
2553                 if (!wpa_dbus_dict_append_string_array(
2554                             &iter_dict, "Protocol", args,
2555                             ARRAY_SIZE(args)))
2556                         goto nomem;
2557         } else {
2558                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
2559                                                       &iter_dict_entry,
2560                                                       &iter_dict_val,
2561                                                       &iter_array) ||
2562                     ((capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2563                                        WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) &&
2564                      !wpa_dbus_dict_string_array_add_element(
2565                              &iter_array, "rsn")) ||
2566                     ((capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2567                                        WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) &&
2568                      !wpa_dbus_dict_string_array_add_element(
2569                              &iter_array, "wpa")) ||
2570                     !wpa_dbus_dict_end_string_array(&iter_dict,
2571                                                     &iter_dict_entry,
2572                                                     &iter_dict_val,
2573                                                     &iter_array))
2574                         goto nomem;
2575         }
2576
2577         /***** auth alg */
2578         if (res < 0) {
2579                 const char *args[] = { "open", "shared", "leap" };
2580
2581                 if (!wpa_dbus_dict_append_string_array(
2582                             &iter_dict, "AuthAlg", args,
2583                             ARRAY_SIZE(args)))
2584                         goto nomem;
2585         } else {
2586                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
2587                                                       &iter_dict_entry,
2588                                                       &iter_dict_val,
2589                                                       &iter_array))
2590                         goto nomem;
2591
2592                 if (((capa.auth & WPA_DRIVER_AUTH_OPEN) &&
2593                      !wpa_dbus_dict_string_array_add_element(
2594                              &iter_array, "open")) ||
2595                     ((capa.auth & WPA_DRIVER_AUTH_SHARED) &&
2596                      !wpa_dbus_dict_string_array_add_element(
2597                              &iter_array, "shared")) ||
2598                     ((capa.auth & WPA_DRIVER_AUTH_LEAP) &&
2599                      !wpa_dbus_dict_string_array_add_element(
2600                              &iter_array, "leap")) ||
2601                     !wpa_dbus_dict_end_string_array(&iter_dict,
2602                                                     &iter_dict_entry,
2603                                                     &iter_dict_val,
2604                                                     &iter_array))
2605                         goto nomem;
2606         }
2607
2608         /***** Scan */
2609         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
2610                                                ARRAY_SIZE(scans)))
2611                 goto nomem;
2612
2613         /***** Modes */
2614         if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Modes",
2615                                               &iter_dict_entry,
2616                                               &iter_dict_val,
2617                                               &iter_array) ||
2618             !wpa_dbus_dict_string_array_add_element(
2619                     &iter_array, "infrastructure") ||
2620             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_IBSS) &&
2621              !wpa_dbus_dict_string_array_add_element(
2622                      &iter_array, "ad-hoc")) ||
2623             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_AP) &&
2624              !wpa_dbus_dict_string_array_add_element(
2625                      &iter_array, "ap")) ||
2626             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
2627              !wpa_s->conf->p2p_disabled &&
2628              !wpa_dbus_dict_string_array_add_element(
2629                      &iter_array, "p2p")) ||
2630             !wpa_dbus_dict_end_string_array(&iter_dict,
2631                                             &iter_dict_entry,
2632                                             &iter_dict_val,
2633                                             &iter_array))
2634                 goto nomem;
2635         /***** Modes end */
2636
2637         if (res >= 0) {
2638                 dbus_int32_t max_scan_ssid = capa.max_scan_ssids;
2639
2640                 if (!wpa_dbus_dict_append_int32(&iter_dict, "MaxScanSSID",
2641                                                 max_scan_ssid))
2642                         goto nomem;
2643         }
2644
2645         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
2646             !dbus_message_iter_close_container(iter, &variant_iter))
2647                 goto nomem;
2648
2649         return TRUE;
2650
2651 nomem:
2652         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2653         return FALSE;
2654 }
2655
2656
2657 /**
2658  * wpas_dbus_getter_state - Get interface state
2659  * @iter: Pointer to incoming dbus message iter
2660  * @error: Location to store error on failure
2661  * @user_data: Function specific data
2662  * Returns: TRUE on success, FALSE on failure
2663  *
2664  * Getter for "State" property.
2665  */
2666 dbus_bool_t wpas_dbus_getter_state(
2667         const struct wpa_dbus_property_desc *property_desc,
2668         DBusMessageIter *iter, DBusError *error, void *user_data)
2669 {
2670         struct wpa_supplicant *wpa_s = user_data;
2671         const char *str_state;
2672         char *state_ls, *tmp;
2673         dbus_bool_t success = FALSE;
2674
2675         str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
2676
2677         /* make state string lowercase to fit new DBus API convention
2678          */
2679         state_ls = tmp = os_strdup(str_state);
2680         if (!tmp) {
2681                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2682                 return FALSE;
2683         }
2684         while (*tmp) {
2685                 *tmp = tolower(*tmp);
2686                 tmp++;
2687         }
2688
2689         success = wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2690                                                    &state_ls, error);
2691
2692         os_free(state_ls);
2693
2694         return success;
2695 }
2696
2697
2698 /**
2699  * wpas_dbus_new_iface_get_scanning - Get interface scanning state
2700  * @iter: Pointer to incoming dbus message iter
2701  * @error: Location to store error on failure
2702  * @user_data: Function specific data
2703  * Returns: TRUE on success, FALSE on failure
2704  *
2705  * Getter for "scanning" property.
2706  */
2707 dbus_bool_t wpas_dbus_getter_scanning(
2708         const struct wpa_dbus_property_desc *property_desc,
2709         DBusMessageIter *iter, DBusError *error, void *user_data)
2710 {
2711         struct wpa_supplicant *wpa_s = user_data;
2712         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
2713
2714         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2715                                                 &scanning, error);
2716 }
2717
2718
2719 /**
2720  * wpas_dbus_getter_ap_scan - Control roaming mode
2721  * @iter: Pointer to incoming dbus message iter
2722  * @error: Location to store error on failure
2723  * @user_data: Function specific data
2724  * Returns: TRUE on success, FALSE on failure
2725  *
2726  * Getter function for "ApScan" property.
2727  */
2728 dbus_bool_t wpas_dbus_getter_ap_scan(
2729         const struct wpa_dbus_property_desc *property_desc,
2730         DBusMessageIter *iter, DBusError *error, void *user_data)
2731 {
2732         struct wpa_supplicant *wpa_s = user_data;
2733         dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
2734
2735         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2736                                                 &ap_scan, error);
2737 }
2738
2739
2740 /**
2741  * wpas_dbus_setter_ap_scan - Control roaming mode
2742  * @iter: Pointer to incoming dbus message iter
2743  * @error: Location to store error on failure
2744  * @user_data: Function specific data
2745  * Returns: TRUE on success, FALSE on failure
2746  *
2747  * Setter function for "ApScan" property.
2748  */
2749 dbus_bool_t wpas_dbus_setter_ap_scan(
2750         const struct wpa_dbus_property_desc *property_desc,
2751         DBusMessageIter *iter, DBusError *error, void *user_data)
2752 {
2753         struct wpa_supplicant *wpa_s = user_data;
2754         dbus_uint32_t ap_scan;
2755
2756         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2757                                               &ap_scan))
2758                 return FALSE;
2759
2760         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
2761                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2762                                      "ap_scan must be 0, 1, or 2");
2763                 return FALSE;
2764         }
2765         return TRUE;
2766 }
2767
2768
2769 /**
2770  * wpas_dbus_getter_fast_reauth - Control fast
2771  * reauthentication (TLS session resumption)
2772  * @iter: Pointer to incoming dbus message iter
2773  * @error: Location to store error on failure
2774  * @user_data: Function specific data
2775  * Returns: TRUE on success, FALSE on failure
2776  *
2777  * Getter function for "FastReauth" property.
2778  */
2779 dbus_bool_t wpas_dbus_getter_fast_reauth(
2780         const struct wpa_dbus_property_desc *property_desc,
2781         DBusMessageIter *iter, DBusError *error, void *user_data)
2782 {
2783         struct wpa_supplicant *wpa_s = user_data;
2784         dbus_bool_t fast_reauth = wpa_s->conf->fast_reauth ? TRUE : FALSE;
2785
2786         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2787                                                 &fast_reauth, error);
2788 }
2789
2790
2791 /**
2792  * wpas_dbus_setter_fast_reauth - Control fast
2793  * reauthentication (TLS session resumption)
2794  * @iter: Pointer to incoming dbus message iter
2795  * @error: Location to store error on failure
2796  * @user_data: Function specific data
2797  * Returns: TRUE on success, FALSE on failure
2798  *
2799  * Setter function for "FastReauth" property.
2800  */
2801 dbus_bool_t wpas_dbus_setter_fast_reauth(
2802         const struct wpa_dbus_property_desc *property_desc,
2803         DBusMessageIter *iter, DBusError *error, void *user_data)
2804 {
2805         struct wpa_supplicant *wpa_s = user_data;
2806         dbus_bool_t fast_reauth;
2807
2808         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
2809                                               &fast_reauth))
2810                 return FALSE;
2811
2812         wpa_s->conf->fast_reauth = fast_reauth;
2813         return TRUE;
2814 }
2815
2816
2817 /**
2818  * wpas_dbus_getter_disconnect_reason - Get most recent reason for disconnect
2819  * @iter: Pointer to incoming dbus message iter
2820  * @error: Location to store error on failure
2821  * @user_data: Function specific data
2822  * Returns: TRUE on success, FALSE on failure
2823  *
2824  * Getter for "DisconnectReason" property.  The reason is negative if it is
2825  * locally generated.
2826  */
2827 dbus_bool_t wpas_dbus_getter_disconnect_reason(
2828         const struct wpa_dbus_property_desc *property_desc,
2829         DBusMessageIter *iter, DBusError *error, void *user_data)
2830 {
2831         struct wpa_supplicant *wpa_s = user_data;
2832         dbus_int32_t reason = wpa_s->disconnect_reason;
2833
2834         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2835                                                 &reason, error);
2836 }
2837
2838
2839 /**
2840  * wpas_dbus_getter_assoc_status_code - Get most recent failed assoc status code
2841  * @iter: Pointer to incoming dbus message iter
2842  * @error: Location to store error on failure
2843  * @user_data: Function specific data
2844  * Returns: TRUE on success, FALSE on failure
2845  *
2846  * Getter for "AssocStatusCode" property.
2847  */
2848 dbus_bool_t wpas_dbus_getter_assoc_status_code(
2849         const struct wpa_dbus_property_desc *property_desc,
2850         DBusMessageIter *iter, DBusError *error, void *user_data)
2851 {
2852         struct wpa_supplicant *wpa_s = user_data;
2853         dbus_int32_t status_code = wpa_s->assoc_status_code;
2854
2855         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2856                                                 &status_code, error);
2857 }
2858
2859
2860 /**
2861  * wpas_dbus_getter_bss_expire_age - Get BSS entry expiration age
2862  * @iter: Pointer to incoming dbus message iter
2863  * @error: Location to store error on failure
2864  * @user_data: Function specific data
2865  * Returns: TRUE on success, FALSE on failure
2866  *
2867  * Getter function for "BSSExpireAge" property.
2868  */
2869 dbus_bool_t wpas_dbus_getter_bss_expire_age(
2870         const struct wpa_dbus_property_desc *property_desc,
2871         DBusMessageIter *iter, DBusError *error, void *user_data)
2872 {
2873         struct wpa_supplicant *wpa_s = user_data;
2874         dbus_uint32_t expire_age = wpa_s->conf->bss_expiration_age;
2875
2876         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2877                                                 &expire_age, error);
2878 }
2879
2880
2881 /**
2882  * wpas_dbus_setter_bss_expire_age - Control BSS entry expiration age
2883  * @iter: Pointer to incoming dbus message iter
2884  * @error: Location to store error on failure
2885  * @user_data: Function specific data
2886  * Returns: TRUE on success, FALSE on failure
2887  *
2888  * Setter function for "BSSExpireAge" property.
2889  */
2890 dbus_bool_t wpas_dbus_setter_bss_expire_age(
2891         const struct wpa_dbus_property_desc *property_desc,
2892         DBusMessageIter *iter, DBusError *error, void *user_data)
2893 {
2894         struct wpa_supplicant *wpa_s = user_data;
2895         dbus_uint32_t expire_age;
2896
2897         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2898                                               &expire_age))
2899                 return FALSE;
2900
2901         if (wpa_supplicant_set_bss_expiration_age(wpa_s, expire_age)) {
2902                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2903                                      "BSSExpireAge must be >= 10");
2904                 return FALSE;
2905         }
2906         return TRUE;
2907 }
2908
2909
2910 /**
2911  * wpas_dbus_getter_bss_expire_count - Get BSS entry expiration scan count
2912  * @iter: Pointer to incoming dbus message iter
2913  * @error: Location to store error on failure
2914  * @user_data: Function specific data
2915  * Returns: TRUE on success, FALSE on failure
2916  *
2917  * Getter function for "BSSExpireCount" property.
2918  */
2919 dbus_bool_t wpas_dbus_getter_bss_expire_count(
2920         const struct wpa_dbus_property_desc *property_desc,
2921         DBusMessageIter *iter, DBusError *error, void *user_data)
2922 {
2923         struct wpa_supplicant *wpa_s = user_data;
2924         dbus_uint32_t expire_count = wpa_s->conf->bss_expiration_scan_count;
2925
2926         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2927                                                 &expire_count, error);
2928 }
2929
2930
2931 /**
2932  * wpas_dbus_setter_bss_expire_count - Control BSS entry expiration scan count
2933  * @iter: Pointer to incoming dbus message iter
2934  * @error: Location to store error on failure
2935  * @user_data: Function specific data
2936  * Returns: TRUE on success, FALSE on failure
2937  *
2938  * Setter function for "BSSExpireCount" property.
2939  */
2940 dbus_bool_t wpas_dbus_setter_bss_expire_count(
2941         const struct wpa_dbus_property_desc *property_desc,
2942         DBusMessageIter *iter, DBusError *error, void *user_data)
2943 {
2944         struct wpa_supplicant *wpa_s = user_data;
2945         dbus_uint32_t expire_count;
2946
2947         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2948                                               &expire_count))
2949                 return FALSE;
2950
2951         if (wpa_supplicant_set_bss_expiration_count(wpa_s, expire_count)) {
2952                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2953                                      "BSSExpireCount must be > 0");
2954                 return FALSE;
2955         }
2956         return TRUE;
2957 }
2958
2959
2960 /**
2961  * wpas_dbus_getter_country - Control country code
2962  * @iter: Pointer to incoming dbus message iter
2963  * @error: Location to store error on failure
2964  * @user_data: Function specific data
2965  * Returns: TRUE on success, FALSE on failure
2966  *
2967  * Getter function for "Country" property.
2968  */
2969 dbus_bool_t wpas_dbus_getter_country(
2970         const struct wpa_dbus_property_desc *property_desc,
2971         DBusMessageIter *iter, DBusError *error, void *user_data)
2972 {
2973         struct wpa_supplicant *wpa_s = user_data;
2974         char country[3];
2975         char *str = country;
2976
2977         country[0] = wpa_s->conf->country[0];
2978         country[1] = wpa_s->conf->country[1];
2979         country[2] = '\0';
2980
2981         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2982                                                 &str, error);
2983 }
2984
2985
2986 /**
2987  * wpas_dbus_setter_country - Control country code
2988  * @iter: Pointer to incoming dbus message iter
2989  * @error: Location to store error on failure
2990  * @user_data: Function specific data
2991  * Returns: TRUE on success, FALSE on failure
2992  *
2993  * Setter function for "Country" property.
2994  */
2995 dbus_bool_t wpas_dbus_setter_country(
2996         const struct wpa_dbus_property_desc *property_desc,
2997         DBusMessageIter *iter, DBusError *error, void *user_data)
2998 {
2999         struct wpa_supplicant *wpa_s = user_data;
3000         const char *country;
3001
3002         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
3003                                               &country))
3004                 return FALSE;
3005
3006         if (!country[0] || !country[1]) {
3007                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3008                                      "invalid country code");
3009                 return FALSE;
3010         }
3011
3012         if (wpa_s->drv_priv != NULL && wpa_drv_set_country(wpa_s, country)) {
3013                 wpa_printf(MSG_DEBUG, "Failed to set country");
3014                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3015                                      "failed to set country code");
3016                 return FALSE;
3017         }
3018
3019         wpa_s->conf->country[0] = country[0];
3020         wpa_s->conf->country[1] = country[1];
3021         return TRUE;
3022 }
3023
3024
3025 /**
3026  * wpas_dbus_getter_scan_interval - Get scan interval
3027  * @iter: Pointer to incoming dbus message iter
3028  * @error: Location to store error on failure
3029  * @user_data: Function specific data
3030  * Returns: TRUE on success, FALSE on failure
3031  *
3032  * Getter function for "ScanInterval" property.
3033  */
3034 dbus_bool_t wpas_dbus_getter_scan_interval(
3035         const struct wpa_dbus_property_desc *property_desc,
3036         DBusMessageIter *iter, DBusError *error, void *user_data)
3037 {
3038         struct wpa_supplicant *wpa_s = user_data;
3039         dbus_int32_t scan_interval = wpa_s->scan_interval;
3040
3041         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
3042                                                 &scan_interval, error);
3043 }
3044
3045
3046 /**
3047  * wpas_dbus_setter_scan_interval - Control scan interval
3048  * @iter: Pointer to incoming dbus message iter
3049  * @error: Location to store error on failure
3050  * @user_data: Function specific data
3051  * Returns: TRUE on success, FALSE on failure
3052  *
3053  * Setter function for "ScanInterval" property.
3054  */
3055 dbus_bool_t wpas_dbus_setter_scan_interval(
3056         const struct wpa_dbus_property_desc *property_desc,
3057         DBusMessageIter *iter, DBusError *error, void *user_data)
3058 {
3059         struct wpa_supplicant *wpa_s = user_data;
3060         dbus_int32_t scan_interval;
3061
3062         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_INT32,
3063                                               &scan_interval))
3064                 return FALSE;
3065
3066         if (wpa_supplicant_set_scan_interval(wpa_s, scan_interval)) {
3067                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3068                                      "scan_interval must be >= 0");
3069                 return FALSE;
3070         }
3071         return TRUE;
3072 }
3073
3074
3075 /**
3076  * wpas_dbus_getter_ifname - Get interface name
3077  * @iter: Pointer to incoming dbus message iter
3078  * @error: Location to store error on failure
3079  * @user_data: Function specific data
3080  * Returns: TRUE on success, FALSE on failure
3081  *
3082  * Getter for "Ifname" property.
3083  */
3084 dbus_bool_t wpas_dbus_getter_ifname(
3085         const struct wpa_dbus_property_desc *property_desc,
3086         DBusMessageIter *iter, DBusError *error, void *user_data)
3087 {
3088         struct wpa_supplicant *wpa_s = user_data;
3089         const char *ifname = wpa_s->ifname;
3090
3091         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3092                                                 &ifname, error);
3093 }
3094
3095
3096 /**
3097  * wpas_dbus_getter_driver - Get interface name
3098  * @iter: Pointer to incoming dbus message iter
3099  * @error: Location to store error on failure
3100  * @user_data: Function specific data
3101  * Returns: TRUE on success, FALSE on failure
3102  *
3103  * Getter for "Driver" property.
3104  */
3105 dbus_bool_t wpas_dbus_getter_driver(
3106         const struct wpa_dbus_property_desc *property_desc,
3107         DBusMessageIter *iter, DBusError *error, void *user_data)
3108 {
3109         struct wpa_supplicant *wpa_s = user_data;
3110         const char *driver;
3111
3112         if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
3113                 wpa_printf(MSG_DEBUG, "%s[dbus]: wpa_s has no driver set",
3114                            __func__);
3115                 dbus_set_error(error, DBUS_ERROR_FAILED, "%s: no driver set",
3116                                __func__);
3117                 return FALSE;
3118         }
3119
3120         driver = wpa_s->driver->name;
3121         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3122                                                 &driver, error);
3123 }
3124
3125
3126 /**
3127  * wpas_dbus_getter_current_bss - Get current bss object path
3128  * @iter: Pointer to incoming dbus message iter
3129  * @error: Location to store error on failure
3130  * @user_data: Function specific data
3131  * Returns: TRUE on success, FALSE on failure
3132  *
3133  * Getter for "CurrentBSS" property.
3134  */
3135 dbus_bool_t wpas_dbus_getter_current_bss(
3136         const struct wpa_dbus_property_desc *property_desc,
3137         DBusMessageIter *iter, DBusError *error, void *user_data)
3138 {
3139         struct wpa_supplicant *wpa_s = user_data;
3140         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
3141
3142         if (wpa_s->current_bss && wpa_s->dbus_new_path)
3143                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
3144                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
3145                             wpa_s->dbus_new_path, wpa_s->current_bss->id);
3146         else
3147                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
3148
3149         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
3150                                                 &bss_obj_path, error);
3151 }
3152
3153
3154 /**
3155  * wpas_dbus_getter_current_network - Get current network object path
3156  * @iter: Pointer to incoming dbus message iter
3157  * @error: Location to store error on failure
3158  * @user_data: Function specific data
3159  * Returns: TRUE on success, FALSE on failure
3160  *
3161  * Getter for "CurrentNetwork" property.
3162  */
3163 dbus_bool_t wpas_dbus_getter_current_network(
3164         const struct wpa_dbus_property_desc *property_desc,
3165         DBusMessageIter *iter, DBusError *error, void *user_data)
3166 {
3167         struct wpa_supplicant *wpa_s = user_data;
3168         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
3169
3170         if (wpa_s->current_ssid && wpa_s->dbus_new_path)
3171                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
3172                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
3173                             wpa_s->dbus_new_path, wpa_s->current_ssid->id);
3174         else
3175                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
3176
3177         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
3178                                                 &net_obj_path, error);
3179 }
3180
3181
3182 /**
3183  * wpas_dbus_getter_current_auth_mode - Get current authentication type
3184  * @iter: Pointer to incoming dbus message iter
3185  * @error: Location to store error on failure
3186  * @user_data: Function specific data
3187  * Returns: TRUE on success, FALSE on failure
3188  *
3189  * Getter for "CurrentAuthMode" property.
3190  */
3191 dbus_bool_t wpas_dbus_getter_current_auth_mode(
3192         const struct wpa_dbus_property_desc *property_desc,
3193         DBusMessageIter *iter, DBusError *error, void *user_data)
3194 {
3195         struct wpa_supplicant *wpa_s = user_data;
3196         const char *eap_mode;
3197         const char *auth_mode;
3198         char eap_mode_buf[WPAS_DBUS_AUTH_MODE_MAX];
3199
3200         if (wpa_s->wpa_state != WPA_COMPLETED) {
3201                 auth_mode = "INACTIVE";
3202         } else if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
3203             wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
3204                 eap_mode = wpa_supplicant_get_eap_mode(wpa_s);
3205                 os_snprintf(eap_mode_buf, WPAS_DBUS_AUTH_MODE_MAX,
3206                             "EAP-%s", eap_mode);
3207                 auth_mode = eap_mode_buf;
3208
3209         } else if (wpa_s->current_ssid) {
3210                 auth_mode = wpa_key_mgmt_txt(wpa_s->key_mgmt,
3211                                              wpa_s->current_ssid->proto);
3212         } else {
3213                 auth_mode = "UNKNOWN";
3214         }
3215
3216         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3217                                                 &auth_mode, error);
3218 }
3219
3220
3221 /**
3222  * wpas_dbus_getter_bridge_ifname - Get interface name
3223  * @iter: Pointer to incoming dbus message iter
3224  * @error: Location to store error on failure
3225  * @user_data: Function specific data
3226  * Returns: TRUE on success, FALSE on failure
3227  *
3228  * Getter for "BridgeIfname" property.
3229  */
3230 dbus_bool_t wpas_dbus_getter_bridge_ifname(
3231         const struct wpa_dbus_property_desc *property_desc,
3232         DBusMessageIter *iter, DBusError *error, void *user_data)
3233 {
3234         struct wpa_supplicant *wpa_s = user_data;
3235         const char *bridge_ifname = wpa_s->bridge_ifname;
3236
3237         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3238                                                 &bridge_ifname, error);
3239 }
3240
3241
3242 /**
3243  * wpas_dbus_getter_config_file - Get interface configuration file path
3244  * @iter: Pointer to incoming dbus message iter
3245  * @error: Location to store error on failure
3246  * @user_data: Function specific data
3247  * Returns: TRUE on success, FALSE on failure
3248  *
3249  * Getter for "ConfigFile" property.
3250  */
3251 dbus_bool_t wpas_dbus_getter_config_file(
3252         const struct wpa_dbus_property_desc *property_desc,
3253         DBusMessageIter *iter, DBusError *error, void *user_data)
3254 {
3255         struct wpa_supplicant *wpa_s = user_data;
3256         char *confname = "";
3257
3258         if (wpa_s->confname)
3259                 confname = wpa_s->confname;
3260
3261         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3262                                                 &confname, error);
3263 }
3264
3265
3266 /**
3267  * wpas_dbus_getter_bsss - Get array of BSSs objects
3268  * @iter: Pointer to incoming dbus message iter
3269  * @error: Location to store error on failure
3270  * @user_data: Function specific data
3271  * Returns: TRUE on success, FALSE on failure
3272  *
3273  * Getter for "BSSs" property.
3274  */
3275 dbus_bool_t wpas_dbus_getter_bsss(
3276         const struct wpa_dbus_property_desc *property_desc,
3277         DBusMessageIter *iter, DBusError *error, void *user_data)
3278 {
3279         struct wpa_supplicant *wpa_s = user_data;
3280         struct wpa_bss *bss;
3281         char **paths;
3282         unsigned int i = 0;
3283         dbus_bool_t success = FALSE;
3284
3285         if (!wpa_s->dbus_new_path) {
3286                 dbus_set_error(error, DBUS_ERROR_FAILED,
3287                                "%s: no D-Bus interface", __func__);
3288                 return FALSE;
3289         }
3290
3291         paths = os_calloc(wpa_s->num_bss, sizeof(char *));
3292         if (!paths) {
3293                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3294                 return FALSE;
3295         }
3296
3297         /* Loop through scan results and append each result's object path */
3298         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
3299                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
3300                 if (paths[i] == NULL) {
3301                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
3302                                              "no memory");
3303                         goto out;
3304                 }
3305                 /* Construct the object path for this BSS. */
3306                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
3307                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
3308                             wpa_s->dbus_new_path, bss->id);
3309         }
3310
3311         success = wpas_dbus_simple_array_property_getter(iter,
3312                                                          DBUS_TYPE_OBJECT_PATH,
3313                                                          paths, wpa_s->num_bss,
3314                                                          error);
3315
3316 out:
3317         while (i)
3318                 os_free(paths[--i]);
3319         os_free(paths);
3320         return success;
3321 }
3322
3323
3324 /**
3325  * wpas_dbus_getter_networks - Get array of networks objects
3326  * @iter: Pointer to incoming dbus message iter
3327  * @error: Location to store error on failure
3328  * @user_data: Function specific data
3329  * Returns: TRUE on success, FALSE on failure
3330  *
3331  * Getter for "Networks" property.
3332  */
3333 dbus_bool_t wpas_dbus_getter_networks(
3334         const struct wpa_dbus_property_desc *property_desc,
3335         DBusMessageIter *iter, DBusError *error, void *user_data)
3336 {
3337         struct wpa_supplicant *wpa_s = user_data;
3338         struct wpa_ssid *ssid;
3339         char **paths;
3340         unsigned int i = 0, num = 0;
3341         dbus_bool_t success = FALSE;
3342
3343         if (!wpa_s->dbus_new_path) {
3344                 dbus_set_error(error, DBUS_ERROR_FAILED,
3345                                "%s: no D-Bus interface", __func__);
3346                 return FALSE;
3347         }
3348
3349         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
3350                 if (!network_is_persistent_group(ssid))
3351                         num++;
3352
3353         paths = os_calloc(num, sizeof(char *));
3354         if (!paths) {
3355                 dbus_set_error(error, DBUS_ERROR_NO_MEMORY, "no memory");
3356                 return FALSE;
3357         }
3358
3359         /* Loop through configured networks and append object path of each */
3360         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
3361                 if (network_is_persistent_group(ssid))
3362                         continue;
3363                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
3364                 if (paths[i] == NULL) {
3365                         dbus_set_error(error, DBUS_ERROR_NO_MEMORY,
3366                                        "no memory");
3367                         goto out;
3368                 }
3369
3370                 /* Construct the object path for this network. */
3371                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
3372                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
3373                             wpa_s->dbus_new_path, ssid->id);
3374         }
3375
3376         success = wpas_dbus_simple_array_property_getter(iter,
3377                                                          DBUS_TYPE_OBJECT_PATH,
3378                                                          paths, num, error);
3379
3380 out:
3381         while (i)
3382                 os_free(paths[--i]);
3383         os_free(paths);
3384         return success;
3385 }
3386
3387
3388 /**
3389  * wpas_dbus_getter_pkcs11_engine_path - Get PKCS #11 engine path
3390  * @iter: Pointer to incoming dbus message iter
3391  * @error: Location to store error on failure
3392  * @user_data: Function specific data
3393  * Returns: A dbus message containing the PKCS #11 engine path
3394  *
3395  * Getter for "PKCS11EnginePath" property.
3396  */
3397 dbus_bool_t wpas_dbus_getter_pkcs11_engine_path(
3398         const struct wpa_dbus_property_desc *property_desc,
3399         DBusMessageIter *iter, DBusError *error, void *user_data)
3400 {
3401         struct wpa_supplicant *wpa_s = user_data;
3402         const char *pkcs11_engine_path;
3403
3404         if (wpa_s->conf->pkcs11_engine_path == NULL)
3405                 pkcs11_engine_path = "";
3406         else
3407                 pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
3408         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3409                                                 &pkcs11_engine_path, error);
3410 }
3411
3412
3413 /**
3414  * wpas_dbus_getter_pkcs11_module_path - Get PKCS #11 module path
3415  * @iter: Pointer to incoming dbus message iter
3416  * @error: Location to store error on failure
3417  * @user_data: Function specific data
3418  * Returns: A dbus message containing the PKCS #11 module path
3419  *
3420  * Getter for "PKCS11ModulePath" property.
3421  */
3422 dbus_bool_t wpas_dbus_getter_pkcs11_module_path(
3423         const struct wpa_dbus_property_desc *property_desc,
3424         DBusMessageIter *iter, DBusError *error, void *user_data)
3425 {
3426         struct wpa_supplicant *wpa_s = user_data;
3427         const char *pkcs11_module_path;
3428
3429         if (wpa_s->conf->pkcs11_module_path == NULL)
3430                 pkcs11_module_path = "";
3431         else
3432                 pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
3433         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3434                                                 &pkcs11_module_path, error);
3435 }
3436
3437
3438 /**
3439  * wpas_dbus_getter_blobs - Get all blobs defined for this interface
3440  * @iter: Pointer to incoming dbus message iter
3441  * @error: Location to store error on failure
3442  * @user_data: Function specific data
3443  * Returns: TRUE on success, FALSE on failure
3444  *
3445  * Getter for "Blobs" property.
3446  */
3447 dbus_bool_t wpas_dbus_getter_blobs(
3448         const struct wpa_dbus_property_desc *property_desc,
3449         DBusMessageIter *iter, DBusError *error, void *user_data)
3450 {
3451         struct wpa_supplicant *wpa_s = user_data;
3452         DBusMessageIter variant_iter, dict_iter, entry_iter, array_iter;
3453         struct wpa_config_blob *blob;
3454
3455         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3456                                               "a{say}", &variant_iter) ||
3457             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
3458                                               "{say}", &dict_iter)) {
3459                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3460                 return FALSE;
3461         }
3462
3463         blob = wpa_s->conf->blobs;
3464         while (blob) {
3465                 if (!dbus_message_iter_open_container(&dict_iter,
3466                                                       DBUS_TYPE_DICT_ENTRY,
3467                                                       NULL, &entry_iter) ||
3468                     !dbus_message_iter_append_basic(&entry_iter,
3469                                                     DBUS_TYPE_STRING,
3470                                                     &(blob->name)) ||
3471                     !dbus_message_iter_open_container(&entry_iter,
3472                                                       DBUS_TYPE_ARRAY,
3473                                                       DBUS_TYPE_BYTE_AS_STRING,
3474                                                       &array_iter) ||
3475                     !dbus_message_iter_append_fixed_array(&array_iter,
3476                                                           DBUS_TYPE_BYTE,
3477                                                           &(blob->data),
3478                                                           blob->len) ||
3479                     !dbus_message_iter_close_container(&entry_iter,
3480                                                        &array_iter) ||
3481                     !dbus_message_iter_close_container(&dict_iter,
3482                                                        &entry_iter)) {
3483                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
3484                                              "no memory");
3485                         return FALSE;
3486                 }
3487
3488                 blob = blob->next;
3489         }
3490
3491         if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
3492             !dbus_message_iter_close_container(iter, &variant_iter)) {
3493                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3494                 return FALSE;
3495         }
3496
3497         return TRUE;
3498 }
3499
3500
3501 dbus_bool_t wpas_dbus_getter_iface_global(
3502         const struct wpa_dbus_property_desc *property_desc,
3503         DBusMessageIter *iter, DBusError *error, void *user_data)
3504 {
3505         struct wpa_supplicant *wpa_s = user_data;
3506         int ret;
3507         char buf[250];
3508         char *p = buf;
3509
3510         if (!property_desc->data) {
3511                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3512                                "Unhandled interface property %s",
3513                                property_desc->dbus_property);
3514                 return FALSE;
3515         }
3516
3517         ret = wpa_config_get_value(property_desc->data, wpa_s->conf, buf,
3518                                    sizeof(buf));
3519         if (ret < 0)
3520                 *p = '\0';
3521
3522         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING, &p,
3523                                                 error);
3524 }
3525
3526
3527 dbus_bool_t wpas_dbus_setter_iface_global(
3528         const struct wpa_dbus_property_desc *property_desc,
3529         DBusMessageIter *iter, DBusError *error, void *user_data)
3530 {
3531         struct wpa_supplicant *wpa_s = user_data;
3532         const char *new_value = NULL;
3533         char buf[250];
3534         size_t combined_len;
3535         int ret;
3536
3537         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
3538                                               &new_value))
3539                 return FALSE;
3540
3541         combined_len = os_strlen(property_desc->data) + os_strlen(new_value) +
3542                 3;
3543         if (combined_len >= sizeof(buf)) {
3544                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3545                                "Interface property %s value too large",
3546                                property_desc->dbus_property);
3547                 return FALSE;
3548         }
3549
3550         if (!new_value[0])
3551                 new_value = "NULL";
3552
3553         ret = os_snprintf(buf, combined_len, "%s=%s", property_desc->data,
3554                           new_value);
3555         if (os_snprintf_error(combined_len, ret)) {
3556                 dbus_set_error(error,  WPAS_DBUS_ERROR_UNKNOWN_ERROR,
3557                                "Failed to construct new interface property %s",
3558                                property_desc->dbus_property);
3559                 return FALSE;
3560         }
3561
3562         if (wpa_config_process_global(wpa_s->conf, buf, -1)) {
3563                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3564                                "Failed to set interface property %s",
3565                                property_desc->dbus_property);
3566                 return FALSE;
3567         }
3568
3569         wpa_supplicant_update_config(wpa_s);
3570         return TRUE;
3571 }
3572
3573
3574 static struct wpa_bss * get_bss_helper(struct bss_handler_args *args,
3575                                        DBusError *error, const char *func_name)
3576 {
3577         struct wpa_bss *res = wpa_bss_get_id(args->wpa_s, args->id);
3578
3579         if (!res) {
3580                 wpa_printf(MSG_ERROR, "%s[dbus]: no bss with id %d found",
3581                            func_name, args->id);
3582                 dbus_set_error(error, DBUS_ERROR_FAILED,
3583                                "%s: BSS %d not found",
3584                                func_name, args->id);
3585         }
3586
3587         return res;
3588 }
3589
3590
3591 /**
3592  * wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
3593  * @iter: Pointer to incoming dbus message iter
3594  * @error: Location to store error on failure
3595  * @user_data: Function specific data
3596  * Returns: TRUE on success, FALSE on failure
3597  *
3598  * Getter for "BSSID" property.
3599  */
3600 dbus_bool_t wpas_dbus_getter_bss_bssid(
3601         const struct wpa_dbus_property_desc *property_desc,
3602         DBusMessageIter *iter, DBusError *error, void *user_data)
3603 {
3604         struct bss_handler_args *args = user_data;
3605         struct wpa_bss *res;
3606
3607         res = get_bss_helper(args, error, __func__);
3608         if (!res)
3609                 return FALSE;
3610
3611         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3612                                                       res->bssid, ETH_ALEN,
3613                                                       error);
3614 }
3615
3616
3617 /**
3618  * wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
3619  * @iter: Pointer to incoming dbus message iter
3620  * @error: Location to store error on failure
3621  * @user_data: Function specific data
3622  * Returns: TRUE on success, FALSE on failure
3623  *
3624  * Getter for "SSID" property.
3625  */
3626 dbus_bool_t wpas_dbus_getter_bss_ssid(
3627         const struct wpa_dbus_property_desc *property_desc,
3628         DBusMessageIter *iter, DBusError *error, void *user_data)
3629 {
3630         struct bss_handler_args *args = user_data;
3631         struct wpa_bss *res;
3632
3633         res = get_bss_helper(args, error, __func__);
3634         if (!res)
3635                 return FALSE;
3636
3637         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3638                                                       res->ssid, res->ssid_len,
3639                                                       error);
3640 }
3641
3642
3643 /**
3644  * wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
3645  * @iter: Pointer to incoming dbus message iter
3646  * @error: Location to store error on failure
3647  * @user_data: Function specific data
3648  * Returns: TRUE on success, FALSE on failure
3649  *
3650  * Getter for "Privacy" property.
3651  */
3652 dbus_bool_t wpas_dbus_getter_bss_privacy(
3653         const struct wpa_dbus_property_desc *property_desc,
3654         DBusMessageIter *iter, DBusError *error, void *user_data)
3655 {
3656         struct bss_handler_args *args = user_data;
3657         struct wpa_bss *res;
3658         dbus_bool_t privacy;
3659
3660         res = get_bss_helper(args, error, __func__);
3661         if (!res)
3662                 return FALSE;
3663
3664         privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
3665         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
3666                                                 &privacy, error);
3667 }
3668
3669
3670 /**
3671  * wpas_dbus_getter_bss_mode - Return the mode of a BSS
3672  * @iter: Pointer to incoming dbus message iter
3673  * @error: Location to store error on failure
3674  * @user_data: Function specific data
3675  * Returns: TRUE on success, FALSE on failure
3676  *
3677  * Getter for "Mode" property.
3678  */
3679 dbus_bool_t wpas_dbus_getter_bss_mode(
3680         const struct wpa_dbus_property_desc *property_desc,
3681         DBusMessageIter *iter, DBusError *error, void *user_data)
3682 {
3683         struct bss_handler_args *args = user_data;
3684         struct wpa_bss *res;
3685         const char *mode;
3686
3687         res = get_bss_helper(args, error, __func__);
3688         if (!res)
3689                 return FALSE;
3690         if (bss_is_dmg(res)) {
3691                 switch (res->caps & IEEE80211_CAP_DMG_MASK) {
3692                 case IEEE80211_CAP_DMG_PBSS:
3693                 case IEEE80211_CAP_DMG_IBSS:
3694                         mode = "ad-hoc";
3695                         break;
3696                 case IEEE80211_CAP_DMG_AP:
3697                         mode = "infrastructure";
3698                         break;
3699                 }
3700         } else {
3701                 if (res->caps & IEEE80211_CAP_IBSS)
3702                         mode = "ad-hoc";
3703                 else
3704                         mode = "infrastructure";
3705         }
3706
3707         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3708                                                 &mode, error);
3709 }
3710
3711
3712 /**
3713  * wpas_dbus_getter_bss_level - Return the signal strength of a BSS
3714  * @iter: Pointer to incoming dbus message iter
3715  * @error: Location to store error on failure
3716  * @user_data: Function specific data
3717  * Returns: TRUE on success, FALSE on failure
3718  *
3719  * Getter for "Level" property.
3720  */
3721 dbus_bool_t wpas_dbus_getter_bss_signal(
3722         const struct wpa_dbus_property_desc *property_desc,
3723         DBusMessageIter *iter, DBusError *error, void *user_data)
3724 {
3725         struct bss_handler_args *args = user_data;
3726         struct wpa_bss *res;
3727         s16 level;
3728
3729         res = get_bss_helper(args, error, __func__);
3730         if (!res)
3731                 return FALSE;
3732
3733         level = (s16) res->level;
3734         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT16,
3735                                                 &level, error);
3736 }
3737
3738
3739 /**
3740  * wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
3741  * @iter: Pointer to incoming dbus message iter
3742  * @error: Location to store error on failure
3743  * @user_data: Function specific data
3744  * Returns: TRUE on success, FALSE on failure
3745  *
3746  * Getter for "Frequency" property.
3747  */
3748 dbus_bool_t wpas_dbus_getter_bss_frequency(
3749         const struct wpa_dbus_property_desc *property_desc,
3750         DBusMessageIter *iter, DBusError *error, void *user_data)
3751 {
3752         struct bss_handler_args *args = user_data;
3753         struct wpa_bss *res;
3754         u16 freq;
3755
3756         res = get_bss_helper(args, error, __func__);
3757         if (!res)
3758                 return FALSE;
3759
3760         freq = (u16) res->freq;
3761         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT16,
3762                                                 &freq, error);
3763 }
3764
3765
3766 static int cmp_u8s_desc(const void *a, const void *b)
3767 {
3768         return (*(u8 *) b - *(u8 *) a);
3769 }
3770
3771
3772 /**
3773  * wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
3774  * @iter: Pointer to incoming dbus message iter
3775  * @error: Location to store error on failure
3776  * @user_data: Function specific data
3777  * Returns: TRUE on success, FALSE on failure
3778  *
3779  * Getter for "Rates" property.
3780  */
3781 dbus_bool_t wpas_dbus_getter_bss_rates(
3782         const struct wpa_dbus_property_desc *property_desc,
3783         DBusMessageIter *iter, DBusError *error, void *user_data)
3784 {
3785         struct bss_handler_args *args = user_data;
3786         struct wpa_bss *res;
3787         u8 *ie_rates = NULL;
3788         u32 *real_rates;
3789         int rates_num, i;
3790         dbus_bool_t success = FALSE;
3791
3792         res = get_bss_helper(args, error, __func__);
3793         if (!res)
3794                 return FALSE;
3795
3796         rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
3797         if (rates_num < 0)
3798                 return FALSE;
3799
3800         qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
3801
3802         real_rates = os_malloc(sizeof(u32) * rates_num);
3803         if (!real_rates) {
3804                 os_free(ie_rates);
3805                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3806                 return FALSE;
3807         }
3808
3809         for (i = 0; i < rates_num; i++)
3810                 real_rates[i] = ie_rates[i] * 500000;
3811
3812         success = wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_UINT32,
3813                                                          real_rates, rates_num,
3814                                                          error);
3815
3816         os_free(ie_rates);
3817         os_free(real_rates);
3818         return success;
3819 }
3820
3821
3822 static dbus_bool_t wpas_dbus_get_bss_security_prop(
3823         const struct wpa_dbus_property_desc *property_desc,
3824         DBusMessageIter *iter, struct wpa_ie_data *ie_data, DBusError *error)
3825 {
3826         DBusMessageIter iter_dict, variant_iter;
3827         const char *group;
3828         const char *pairwise[5]; /* max 5 pairwise ciphers is supported */
3829         const char *key_mgmt[9]; /* max 9 key managements may be supported */
3830         int n;
3831
3832         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3833                                               "a{sv}", &variant_iter))
3834                 goto nomem;
3835
3836         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
3837                 goto nomem;
3838
3839         /* KeyMgmt */
3840         n = 0;
3841         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
3842                 key_mgmt[n++] = "wpa-psk";
3843         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
3844                 key_mgmt[n++] = "wpa-ft-psk";
3845         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
3846                 key_mgmt[n++] = "wpa-psk-sha256";
3847         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
3848                 key_mgmt[n++] = "wpa-eap";
3849         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
3850                 key_mgmt[n++] = "wpa-ft-eap";
3851         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
3852                 key_mgmt[n++] = "wpa-eap-sha256";
3853 #ifdef CONFIG_SUITEB
3854         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B)
3855                 key_mgmt[n++] = "wpa-eap-suite-b";
3856 #endif /* CONFIG_SUITEB */
3857 #ifdef CONFIG_SUITEB192
3858         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
3859                 key_mgmt[n++] = "wpa-eap-suite-b-192";
3860 #endif /* CONFIG_SUITEB192 */
3861         if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
3862                 key_mgmt[n++] = "wpa-none";
3863
3864         if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
3865                                                key_mgmt, n))
3866                 goto nomem;
3867
3868         /* Group */
3869         switch (ie_data->group_cipher) {
3870         case WPA_CIPHER_WEP40:
3871                 group = "wep40";
3872                 break;
3873         case WPA_CIPHER_TKIP:
3874                 group = "tkip";
3875                 break;
3876         case WPA_CIPHER_CCMP:
3877                 group = "ccmp";
3878                 break;
3879         case WPA_CIPHER_GCMP:
3880                 group = "gcmp";
3881                 break;
3882         case WPA_CIPHER_WEP104:
3883                 group = "wep104";
3884                 break;
3885         case WPA_CIPHER_CCMP_256:
3886                 group = "ccmp-256";
3887                 break;
3888         case WPA_CIPHER_GCMP_256:
3889                 group = "gcmp-256";
3890                 break;
3891         default:
3892                 group = "";
3893                 break;
3894         }
3895
3896         if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
3897                 goto nomem;
3898
3899         /* Pairwise */
3900         n = 0;
3901         if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
3902                 pairwise[n++] = "tkip";
3903         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
3904                 pairwise[n++] = "ccmp";
3905         if (ie_data->pairwise_cipher & WPA_CIPHER_GCMP)
3906                 pairwise[n++] = "gcmp";
3907         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP_256)
3908                 pairwise[n++] = "ccmp-256";
3909         if (ie_data->pairwise_cipher & WPA_CIPHER_GCMP_256)
3910                 pairwise[n++] = "gcmp-256";
3911
3912         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
3913                                                pairwise, n))
3914                 goto nomem;
3915
3916         /* Management group (RSN only) */
3917         if (ie_data->proto == WPA_PROTO_RSN) {
3918                 switch (ie_data->mgmt_group_cipher) {
3919 #ifdef CONFIG_IEEE80211W
3920                 case WPA_CIPHER_AES_128_CMAC:
3921                         group = "aes128cmac";
3922                         break;
3923 #endif /* CONFIG_IEEE80211W */
3924                 default:
3925                         group = "";
3926                         break;
3927                 }
3928
3929                 if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
3930                                                  group))
3931                         goto nomem;
3932         }
3933
3934         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
3935             !dbus_message_iter_close_container(iter, &variant_iter))
3936                 goto nomem;
3937
3938         return TRUE;
3939
3940 nomem:
3941         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3942         return FALSE;
3943 }
3944
3945
3946 /**
3947  * wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
3948  * @iter: Pointer to incoming dbus message iter
3949  * @error: Location to store error on failure
3950  * @user_data: Function specific data
3951  * Returns: TRUE on success, FALSE on failure
3952  *
3953  * Getter for "WPA" property.
3954  */
3955 dbus_bool_t wpas_dbus_getter_bss_wpa(
3956         const struct wpa_dbus_property_desc *property_desc,
3957         DBusMessageIter *iter, DBusError *error, void *user_data)
3958 {
3959         struct bss_handler_args *args = user_data;
3960         struct wpa_bss *res;
3961         struct wpa_ie_data wpa_data;
3962         const u8 *ie;
3963
3964         res = get_bss_helper(args, error, __func__);
3965         if (!res)
3966                 return FALSE;
3967
3968         os_memset(&wpa_data, 0, sizeof(wpa_data));
3969         ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
3970         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
3971                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3972                                      "failed to parse WPA IE");
3973                 return FALSE;
3974         }
3975
3976         return wpas_dbus_get_bss_security_prop(property_desc, iter, &wpa_data, error);
3977 }
3978
3979
3980 /**
3981  * wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
3982  * @iter: Pointer to incoming dbus message iter
3983  * @error: Location to store error on failure
3984  * @user_data: Function specific data
3985  * Returns: TRUE on success, FALSE on failure
3986  *
3987  * Getter for "RSN" property.
3988  */
3989 dbus_bool_t wpas_dbus_getter_bss_rsn(
3990         const struct wpa_dbus_property_desc *property_desc,
3991         DBusMessageIter *iter, DBusError *error, void *user_data)
3992 {
3993         struct bss_handler_args *args = user_data;
3994         struct wpa_bss *res;
3995         struct wpa_ie_data wpa_data;
3996         const u8 *ie;
3997
3998         res = get_bss_helper(args, error, __func__);
3999         if (!res)
4000                 return FALSE;
4001
4002         os_memset(&wpa_data, 0, sizeof(wpa_data));
4003         ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
4004         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
4005                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
4006                                      "failed to parse RSN IE");
4007                 return FALSE;
4008         }
4009
4010         return wpas_dbus_get_bss_security_prop(property_desc, iter, &wpa_data, error);
4011 }
4012
4013
4014 /**
4015  * wpas_dbus_getter_bss_wps - Return the WPS options of a BSS
4016  * @iter: Pointer to incoming dbus message iter
4017  * @error: Location to store error on failure
4018  * @user_data: Function specific data
4019  * Returns: TRUE on success, FALSE on failure
4020  *
4021  * Getter for "WPS" property.
4022  */
4023 dbus_bool_t wpas_dbus_getter_bss_wps(
4024         const struct wpa_dbus_property_desc *property_desc,
4025         DBusMessageIter *iter, DBusError *error, void *user_data)
4026 {
4027         struct bss_handler_args *args = user_data;
4028         struct wpa_bss *res;
4029 #ifdef CONFIG_WPS
4030         struct wpabuf *wps_ie;
4031 #endif /* CONFIG_WPS */
4032         DBusMessageIter iter_dict, variant_iter;
4033         int wps_support = 0;
4034         const char *type = "";
4035
4036         res = get_bss_helper(args, error, __func__);
4037         if (!res)
4038                 return FALSE;
4039
4040         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
4041                                               "a{sv}", &variant_iter) ||
4042             !wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
4043                 goto nomem;
4044
4045 #ifdef CONFIG_WPS
4046         wps_ie = wpa_bss_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
4047         if (wps_ie) {
4048                 wps_support = 1;
4049                 if (wps_is_selected_pbc_registrar(wps_ie))
4050                         type = "pbc";
4051                 else if (wps_is_selected_pin_registrar(wps_ie))
4052                         type = "pin";
4053
4054                 wpabuf_free(wps_ie);
4055         }
4056 #endif /* CONFIG_WPS */
4057
4058         if ((wps_support && !wpa_dbus_dict_append_string(&iter_dict, "Type", type)) ||
4059             !wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
4060             !dbus_message_iter_close_container(iter, &variant_iter))
4061                 goto nomem;
4062
4063         return TRUE;
4064
4065 nomem:
4066         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4067         return FALSE;
4068 }
4069
4070
4071 /**
4072  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
4073  * @iter: Pointer to incoming dbus message iter
4074  * @error: Location to store error on failure
4075  * @user_data: Function specific data
4076  * Returns: TRUE on success, FALSE on failure
4077  *
4078  * Getter for "IEs" property.
4079  */
4080 dbus_bool_t wpas_dbus_getter_bss_ies(
4081         const struct wpa_dbus_property_desc *property_desc,
4082         DBusMessageIter *iter, DBusError *error, void *user_data)
4083 {
4084         struct bss_handler_args *args = user_data;
4085         struct wpa_bss *res;
4086
4087         res = get_bss_helper(args, error, __func__);
4088         if (!res)
4089                 return FALSE;
4090
4091         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
4092                                                       res + 1, res->ie_len,
4093                                                       error);
4094 }
4095
4096
4097 /**
4098  * wpas_dbus_getter_bss_age - Return time in seconds since BSS was last seen
4099  * @iter: Pointer to incoming dbus message iter
4100  * @error: Location to store error on failure
4101  * @user_data: Function specific data
4102  * Returns: TRUE on success, FALSE on failure
4103  *
4104  * Getter for BSS age
4105  */
4106 dbus_bool_t wpas_dbus_getter_bss_age(
4107         const struct wpa_dbus_property_desc *property_desc,
4108         DBusMessageIter *iter, DBusError *error, void *user_data)
4109 {
4110         struct bss_handler_args *args = user_data;
4111         struct wpa_bss *res;
4112         struct os_reltime now, diff = { 0, 0 };
4113         u32 age;
4114
4115         res = get_bss_helper(args, error, __func__);
4116         if (!res)
4117                 return FALSE;
4118
4119         os_get_reltime(&now);
4120         os_reltime_sub(&now, &res->last_update, &diff);
4121         age = diff.sec > 0 ? diff.sec : 0;
4122         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32, &age,
4123                                                 error);
4124 }
4125
4126
4127 /**
4128  * wpas_dbus_getter_enabled - Check whether network is enabled or disabled
4129  * @iter: Pointer to incoming dbus message iter
4130  * @error: Location to store error on failure
4131  * @user_data: Function specific data
4132  * Returns: TRUE on success, FALSE on failure
4133  *
4134  * Getter for "enabled" property of a configured network.
4135  */
4136 dbus_bool_t wpas_dbus_getter_enabled(
4137         const struct wpa_dbus_property_desc *property_desc,
4138         DBusMessageIter *iter, DBusError *error, void *user_data)
4139 {
4140         struct network_handler_args *net = user_data;
4141         dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
4142
4143         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
4144                                                 &enabled, error);
4145 }
4146
4147
4148 /**
4149  * wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
4150  * @iter: Pointer to incoming dbus message iter
4151  * @error: Location to store error on failure
4152  * @user_data: Function specific data
4153  * Returns: TRUE on success, FALSE on failure
4154  *
4155  * Setter for "Enabled" property of a configured network.
4156  */
4157 dbus_bool_t wpas_dbus_setter_enabled(
4158         const struct wpa_dbus_property_desc *property_desc,
4159         DBusMessageIter *iter, DBusError *error, void *user_data)
4160 {
4161         struct network_handler_args *net = user_data;
4162         struct wpa_supplicant *wpa_s;
4163         struct wpa_ssid *ssid;
4164         dbus_bool_t enable;
4165
4166         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
4167                                               &enable))
4168                 return FALSE;
4169
4170         wpa_s = net->wpa_s;
4171         ssid = net->ssid;
4172
4173         if (enable)
4174                 wpa_supplicant_enable_network(wpa_s, ssid);
4175         else
4176                 wpa_supplicant_disable_network(wpa_s, ssid);
4177
4178         return TRUE;
4179 }
4180
4181
4182 /**
4183  * wpas_dbus_getter_network_properties - Get options for a configured network
4184  * @iter: Pointer to incoming dbus message iter
4185  * @error: Location to store error on failure
4186  * @user_data: Function specific data
4187  * Returns: TRUE on success, FALSE on failure
4188  *
4189  * Getter for "Properties" property of a configured network.
4190  */
4191 dbus_bool_t wpas_dbus_getter_network_properties(
4192         const struct wpa_dbus_property_desc *property_desc,
4193         DBusMessageIter *iter, DBusError *error, void *user_data)
4194 {
4195         struct network_handler_args *net = user_data;
4196         DBusMessageIter variant_iter, dict_iter;
4197         char **iterator;
4198         char **props = wpa_config_get_all(net->ssid, 1);
4199         dbus_bool_t success = FALSE;
4200
4201         if (!props) {
4202                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4203                 return FALSE;
4204         }
4205
4206         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "a{sv}",
4207                                               &variant_iter) ||
4208             !wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
4209                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4210                 goto out;
4211         }
4212
4213         iterator = props;
4214         while (*iterator) {
4215                 if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
4216                                                  *(iterator + 1))) {
4217                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
4218                                              "no memory");
4219                         goto out;
4220                 }
4221                 iterator += 2;
4222         }
4223
4224
4225         if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
4226             !dbus_message_iter_close_container(iter, &variant_iter)) {
4227                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4228                 goto out;
4229         }
4230
4231         success = TRUE;
4232
4233 out:
4234         iterator = props;
4235         while (*iterator) {
4236                 os_free(*iterator);
4237                 iterator++;
4238         }
4239         os_free(props);
4240         return success;
4241 }
4242
4243
4244 /**
4245  * wpas_dbus_setter_network_properties - Set options for a configured network
4246  * @iter: Pointer to incoming dbus message iter
4247  * @error: Location to store error on failure
4248  * @user_data: Function specific data
4249  * Returns: TRUE on success, FALSE on failure
4250  *
4251  * Setter for "Properties" property of a configured network.
4252  */
4253 dbus_bool_t wpas_dbus_setter_network_properties(
4254         const struct wpa_dbus_property_desc *property_desc,
4255         DBusMessageIter *iter, DBusError *error, void *user_data)
4256 {
4257         struct network_handler_args *net = user_data;
4258         struct wpa_ssid *ssid = net->ssid;
4259         DBusMessageIter variant_iter;
4260
4261         dbus_message_iter_recurse(iter, &variant_iter);
4262         return set_network_properties(net->wpa_s, ssid, &variant_iter, error);
4263 }
4264
4265
4266 #ifdef CONFIG_AP
4267
4268 DBusMessage * wpas_dbus_handler_subscribe_preq(
4269         DBusMessage *message, struct wpa_supplicant *wpa_s)
4270 {
4271         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4272         char *name;
4273
4274         if (wpa_s->preq_notify_peer != NULL) {
4275                 if (os_strcmp(dbus_message_get_sender(message),
4276                               wpa_s->preq_notify_peer) == 0)
4277                         return NULL;
4278
4279                 return dbus_message_new_error(message,
4280                         WPAS_DBUS_ERROR_SUBSCRIPTION_IN_USE,
4281                         "Another application is already subscribed");
4282         }
4283
4284         name = os_strdup(dbus_message_get_sender(message));
4285         if (!name)
4286                 return wpas_dbus_error_no_memory(message);
4287
4288         wpa_s->preq_notify_peer = name;
4289
4290         /* Subscribe to clean up if application closes socket */
4291         wpas_dbus_subscribe_noc(priv);
4292
4293         /*
4294          * Double-check it's still alive to make sure that we didn't
4295          * miss the NameOwnerChanged signal, e.g. while strdup'ing.
4296          */
4297         if (!dbus_bus_name_has_owner(priv->con, name, NULL)) {
4298                 /*
4299                  * Application no longer exists, clean up.
4300                  * The return value is irrelevant now.
4301                  *
4302                  * Need to check if the NameOwnerChanged handling
4303                  * already cleaned up because we have processed
4304                  * DBus messages while checking if the name still
4305                  * has an owner.
4306                  */
4307                 if (!wpa_s->preq_notify_peer)
4308                         return NULL;
4309                 os_free(wpa_s->preq_notify_peer);
4310                 wpa_s->preq_notify_peer = NULL;
4311                 wpas_dbus_unsubscribe_noc(priv);
4312         }
4313
4314         return NULL;
4315 }
4316
4317
4318 DBusMessage * wpas_dbus_handler_unsubscribe_preq(
4319         DBusMessage *message, struct wpa_supplicant *wpa_s)
4320 {
4321         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4322
4323         if (!wpa_s->preq_notify_peer)
4324                 return dbus_message_new_error(message,
4325                         WPAS_DBUS_ERROR_NO_SUBSCRIPTION,
4326                         "Not subscribed");
4327
4328         if (os_strcmp(wpa_s->preq_notify_peer,
4329                       dbus_message_get_sender(message)))
4330                 return dbus_message_new_error(message,
4331                         WPAS_DBUS_ERROR_SUBSCRIPTION_EPERM,
4332                         "Can't unsubscribe others");
4333
4334         os_free(wpa_s->preq_notify_peer);
4335         wpa_s->preq_notify_peer = NULL;
4336         wpas_dbus_unsubscribe_noc(priv);
4337         return NULL;
4338 }
4339
4340
4341 void wpas_dbus_signal_preq(struct wpa_supplicant *wpa_s,
4342                            const u8 *addr, const u8 *dst, const u8 *bssid,
4343                            const u8 *ie, size_t ie_len, u32 ssi_signal)
4344 {
4345         DBusMessage *msg;
4346         DBusMessageIter iter, dict_iter;
4347         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4348
4349         /* Do nothing if the control interface is not turned on */
4350         if (priv == NULL || !wpa_s->dbus_new_path)
4351                 return;
4352
4353         if (wpa_s->preq_notify_peer == NULL)
4354                 return;
4355
4356         msg = dbus_message_new_signal(wpa_s->dbus_new_path,
4357                                       WPAS_DBUS_NEW_IFACE_INTERFACE,
4358                                       "ProbeRequest");
4359         if (msg == NULL)
4360                 return;
4361
4362         dbus_message_set_destination(msg, wpa_s->preq_notify_peer);
4363
4364         dbus_message_iter_init_append(msg, &iter);
4365
4366         if (!wpa_dbus_dict_open_write(&iter, &dict_iter) ||
4367             (addr && !wpa_dbus_dict_append_byte_array(&dict_iter, "addr",
4368                                                       (const char *) addr,
4369                                                       ETH_ALEN)) ||
4370             (dst && !wpa_dbus_dict_append_byte_array(&dict_iter, "dst",
4371                                                      (const char *) dst,
4372                                                      ETH_ALEN)) ||
4373             (bssid && !wpa_dbus_dict_append_byte_array(&dict_iter, "bssid",
4374                                                        (const char *) bssid,
4375                                                        ETH_ALEN)) ||
4376             (ie && ie_len && !wpa_dbus_dict_append_byte_array(&dict_iter, "ies",
4377                                                               (const char *) ie,
4378                                                               ie_len)) ||
4379             (ssi_signal && !wpa_dbus_dict_append_int32(&dict_iter, "signal",
4380                                                        ssi_signal)) ||
4381             !wpa_dbus_dict_close_write(&iter, &dict_iter))
4382                 goto fail;
4383
4384         dbus_connection_send(priv->con, msg, NULL);
4385         goto out;
4386 fail:
4387         wpa_printf(MSG_ERROR, "dbus: Failed to construct signal");
4388 out:
4389         dbus_message_unref(msg);
4390 }
4391
4392 #endif /* CONFIG_AP */
4393
4394
4395 DBusMessage * wpas_dbus_handler_vendor_elem_add(DBusMessage *message,
4396                                                 struct wpa_supplicant *wpa_s)
4397 {
4398         u8 *ielems;
4399         int len;
4400         struct ieee802_11_elems elems;
4401         dbus_int32_t frame_id;
4402         DBusMessageIter iter, array;
4403
4404         dbus_message_iter_init(message, &iter);
4405         dbus_message_iter_get_basic(&iter, &frame_id);
4406         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4407                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4408                                               "Invalid ID");
4409         }
4410
4411         dbus_message_iter_next(&iter);
4412         dbus_message_iter_recurse(&iter, &array);
4413         dbus_message_iter_get_fixed_array(&array, &ielems, &len);
4414         if (!ielems || len == 0) {
4415                 return dbus_message_new_error(
4416                         message, DBUS_ERROR_INVALID_ARGS, "Invalid value");
4417         }
4418
4419         if (ieee802_11_parse_elems(ielems, len, &elems, 0) == ParseFailed) {
4420                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4421                                               "Parse error");
4422         }
4423
4424         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4425         if (!wpa_s->vendor_elem[frame_id]) {
4426                 wpa_s->vendor_elem[frame_id] = wpabuf_alloc_copy(ielems, len);
4427                 wpas_vendor_elem_update(wpa_s);
4428                 return NULL;
4429         }
4430
4431         if (wpabuf_resize(&wpa_s->vendor_elem[frame_id], len) < 0) {
4432                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4433                                               "Resize error");
4434         }
4435
4436         wpabuf_put_data(wpa_s->vendor_elem[frame_id], ielems, len);
4437         wpas_vendor_elem_update(wpa_s);
4438         return NULL;
4439 }
4440
4441
4442 DBusMessage * wpas_dbus_handler_vendor_elem_get(DBusMessage *message,
4443                                                 struct wpa_supplicant *wpa_s)
4444 {
4445         DBusMessage *reply;
4446         DBusMessageIter iter, array_iter;
4447         dbus_int32_t frame_id;
4448         const u8 *elem;
4449         size_t elem_len;
4450
4451         dbus_message_iter_init(message, &iter);
4452         dbus_message_iter_get_basic(&iter, &frame_id);
4453
4454         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4455                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4456                                               "Invalid ID");
4457         }
4458
4459         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4460         if (!wpa_s->vendor_elem[frame_id]) {
4461                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4462                                               "ID value does not exist");
4463         }
4464
4465         reply = dbus_message_new_method_return(message);
4466         if (!reply)
4467                 return wpas_dbus_error_no_memory(message);
4468
4469         dbus_message_iter_init_append(reply, &iter);
4470
4471         elem = wpabuf_head_u8(wpa_s->vendor_elem[frame_id]);
4472         elem_len = wpabuf_len(wpa_s->vendor_elem[frame_id]);
4473
4474         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
4475                                               DBUS_TYPE_BYTE_AS_STRING,
4476                                               &array_iter) ||
4477             !dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
4478                                                   &elem, elem_len) ||
4479             !dbus_message_iter_close_container(&iter, &array_iter)) {
4480                 dbus_message_unref(reply);
4481                 reply = wpas_dbus_error_no_memory(message);
4482         }
4483
4484         return reply;
4485 }
4486
4487
4488 DBusMessage * wpas_dbus_handler_vendor_elem_remove(DBusMessage *message,
4489                                                    struct wpa_supplicant *wpa_s)
4490 {
4491         u8 *ielems;
4492         int len;
4493         struct ieee802_11_elems elems;
4494         DBusMessageIter iter, array;
4495         dbus_int32_t frame_id;
4496
4497         dbus_message_iter_init(message, &iter);
4498         dbus_message_iter_get_basic(&iter, &frame_id);
4499         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4500                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4501                                               "Invalid ID");
4502         }
4503
4504         dbus_message_iter_next(&iter);
4505         dbus_message_iter_recurse(&iter, &array);
4506         dbus_message_iter_get_fixed_array(&array, &ielems, &len);
4507         if (!ielems || len == 0) {
4508                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4509                                               "Invalid value");
4510         }
4511
4512         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4513
4514         if (len == 1 && *ielems == '*') {
4515                 wpabuf_free(wpa_s->vendor_elem[frame_id]);
4516                 wpa_s->vendor_elem[frame_id] = NULL;
4517                 wpas_vendor_elem_update(wpa_s);
4518                 return NULL;
4519         }
4520
4521         if (!wpa_s->vendor_elem[frame_id]) {
4522                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4523                                               "ID value does not exist");
4524         }
4525
4526         if (ieee802_11_parse_elems(ielems, len, &elems, 0) == ParseFailed) {
4527                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4528                                               "Parse error");
4529         }
4530
4531         if (wpas_vendor_elem_remove(wpa_s, frame_id, ielems, len) == 0)
4532                 return NULL;
4533
4534         return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4535                                       "Not found");
4536 }