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_config_add_network(wpa_s->conf);
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         wpas_notify_network_added(wpa_s, ssid);
1517         ssid->disabled = 1;
1518         wpa_config_set_network_defaults(ssid);
1519
1520         dbus_error_init(&error);
1521         if (!set_network_properties(wpa_s, ssid, &iter, &error)) {
1522                 wpa_printf(MSG_DEBUG,
1523                            "%s[dbus]: control interface couldn't set network properties",
1524                            __func__);
1525                 reply = wpas_dbus_reply_new_from_error(message, &error,
1526                                                        DBUS_ERROR_INVALID_ARGS,
1527                                                        "Failed to add network");
1528                 dbus_error_free(&error);
1529                 goto err;
1530         }
1531
1532         /* Construct the object path for this network. */
1533         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
1534                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
1535                     wpa_s->dbus_new_path, ssid->id);
1536
1537         reply = dbus_message_new_method_return(message);
1538         if (reply == NULL) {
1539                 reply = wpas_dbus_error_no_memory(message);
1540                 goto err;
1541         }
1542         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
1543                                       DBUS_TYPE_INVALID)) {
1544                 dbus_message_unref(reply);
1545                 reply = wpas_dbus_error_no_memory(message);
1546                 goto err;
1547         }
1548
1549         return reply;
1550
1551 err:
1552         if (ssid) {
1553                 wpas_notify_network_removed(wpa_s, ssid);
1554                 wpa_config_remove_network(wpa_s->conf, ssid->id);
1555         }
1556         return reply;
1557 }
1558
1559
1560 /**
1561  * wpas_dbus_handler_reassociate - Reassociate
1562  * @message: Pointer to incoming dbus message
1563  * @wpa_s: wpa_supplicant structure for a network interface
1564  * Returns: InterfaceDisabled DBus error message if disabled
1565  * or NULL otherwise.
1566  *
1567  * Handler function for "Reassociate" method call of network interface.
1568  */
1569 DBusMessage * wpas_dbus_handler_reassociate(DBusMessage *message,
1570                                             struct wpa_supplicant *wpa_s)
1571 {
1572         if (wpa_s->wpa_state != WPA_INTERFACE_DISABLED) {
1573                 wpas_request_connection(wpa_s);
1574                 return NULL;
1575         }
1576
1577         return dbus_message_new_error(message, WPAS_DBUS_ERROR_IFACE_DISABLED,
1578                                       "This interface is disabled");
1579 }
1580
1581
1582 /**
1583  * wpas_dbus_handler_expect_disconnect - ExpectDisconnect
1584  * @message: Pointer to incoming dbus message
1585  * @global: %wpa_supplicant global data structure
1586  * Returns: NULL
1587  *
1588  * Handler function for notifying system there will be a expected disconnect.
1589  * This will prevent wpa_supplicant from adding blacklists upon next disconnect..
1590  */
1591 DBusMessage * wpas_dbus_handler_expect_disconnect(DBusMessage *message,
1592                                                   struct wpa_global *global)
1593 {
1594         struct wpa_supplicant *wpa_s = global->ifaces;
1595
1596         for (; wpa_s; wpa_s = wpa_s->next)
1597                 if (wpa_s->wpa_state >= WPA_ASSOCIATED)
1598                         wpa_s->own_disconnect_req = 1;
1599         return NULL;
1600 }
1601
1602
1603 /**
1604  * wpas_dbus_handler_reattach - Reattach to current AP
1605  * @message: Pointer to incoming dbus message
1606  * @wpa_s: wpa_supplicant structure for a network interface
1607  * Returns: NotConnected DBus error message if not connected
1608  * or NULL otherwise.
1609  *
1610  * Handler function for "Reattach" method call of network interface.
1611  */
1612 DBusMessage * wpas_dbus_handler_reattach(DBusMessage *message,
1613                                          struct wpa_supplicant *wpa_s)
1614 {
1615         if (wpa_s->current_ssid != NULL) {
1616                 wpa_s->reattach = 1;
1617                 wpas_request_connection(wpa_s);
1618                 return NULL;
1619         }
1620
1621         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1622                                       "This interface is not connected");
1623 }
1624
1625
1626 /**
1627  * wpas_dbus_handler_reconnect - Reconnect if disconnected
1628  * @message: Pointer to incoming dbus message
1629  * @wpa_s: wpa_supplicant structure for a network interface
1630  * Returns: InterfaceDisabled DBus error message if disabled
1631  * or NULL otherwise.
1632  *
1633  * Handler function for "Reconnect" method call of network interface.
1634  */
1635 DBusMessage * wpas_dbus_handler_reconnect(DBusMessage *message,
1636                 struct wpa_supplicant *wpa_s)
1637 {
1638         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1639                 return dbus_message_new_error(message,
1640                                               WPAS_DBUS_ERROR_IFACE_DISABLED,
1641                                               "This interface is disabled");
1642         }
1643
1644         if (wpa_s->disconnected)
1645                 wpas_request_connection(wpa_s);
1646         return NULL;
1647 }
1648
1649
1650 /**
1651  * wpas_dbus_handler_remove_network - Remove a configured network
1652  * @message: Pointer to incoming dbus message
1653  * @wpa_s: wpa_supplicant structure for a network interface
1654  * Returns: NULL on success or dbus error on failure
1655  *
1656  * Handler function for "RemoveNetwork" method call of a network interface.
1657  */
1658 DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
1659                                                struct wpa_supplicant *wpa_s)
1660 {
1661         DBusMessage *reply = NULL;
1662         const char *op;
1663         char *iface, *net_id;
1664         int id;
1665         struct wpa_ssid *ssid;
1666         int was_disabled;
1667
1668         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1669                               DBUS_TYPE_INVALID);
1670
1671         /* Extract the network ID and ensure the network */
1672         /* is actually a child of this interface */
1673         iface = wpas_dbus_new_decompose_object_path(op,
1674                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1675                                                     &net_id);
1676         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1677             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1678                 reply = wpas_dbus_error_invalid_args(message, op);
1679                 goto out;
1680         }
1681
1682         errno = 0;
1683         id = strtoul(net_id, NULL, 10);
1684         if (errno != 0) {
1685                 reply = wpas_dbus_error_invalid_args(message, op);
1686                 goto out;
1687         }
1688
1689         ssid = wpa_config_get_network(wpa_s->conf, id);
1690         if (ssid == NULL) {
1691                 reply = wpas_dbus_error_network_unknown(message);
1692                 goto out;
1693         }
1694
1695         was_disabled = ssid->disabled;
1696
1697         wpas_notify_network_removed(wpa_s, ssid);
1698
1699         if (ssid == wpa_s->current_ssid)
1700                 wpa_supplicant_deauthenticate(wpa_s,
1701                                               WLAN_REASON_DEAUTH_LEAVING);
1702         else if (!was_disabled && wpa_s->sched_scanning) {
1703                 wpa_printf(MSG_DEBUG,
1704                            "Stop ongoing sched_scan to remove network from filters");
1705                 wpa_supplicant_cancel_sched_scan(wpa_s);
1706                 wpa_supplicant_req_scan(wpa_s, 0, 0);
1707         }
1708
1709         if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
1710                 wpa_printf(MSG_ERROR,
1711                            "%s[dbus]: error occurred when removing network %d",
1712                            __func__, id);
1713                 reply = wpas_dbus_error_unknown_error(
1714                         message,
1715                         "error removing the specified network on is interface.");
1716                 goto out;
1717         }
1718
1719 out:
1720         os_free(iface);
1721         return reply;
1722 }
1723
1724
1725 static void remove_network(void *arg, struct wpa_ssid *ssid)
1726 {
1727         struct wpa_supplicant *wpa_s = arg;
1728
1729         wpas_notify_network_removed(wpa_s, ssid);
1730
1731         if (wpa_config_remove_network(wpa_s->conf, ssid->id) < 0) {
1732                 wpa_printf(MSG_ERROR,
1733                            "%s[dbus]: error occurred when removing network %d",
1734                            __func__, ssid->id);
1735                 return;
1736         }
1737
1738         if (ssid == wpa_s->current_ssid)
1739                 wpa_supplicant_deauthenticate(wpa_s,
1740                                               WLAN_REASON_DEAUTH_LEAVING);
1741 }
1742
1743
1744 /**
1745  * wpas_dbus_handler_remove_all_networks - Remove all configured networks
1746  * @message: Pointer to incoming dbus message
1747  * @wpa_s: wpa_supplicant structure for a network interface
1748  * Returns: NULL on success or dbus error on failure
1749  *
1750  * Handler function for "RemoveAllNetworks" method call of a network interface.
1751  */
1752 DBusMessage * wpas_dbus_handler_remove_all_networks(
1753         DBusMessage *message, struct wpa_supplicant *wpa_s)
1754 {
1755         if (wpa_s->sched_scanning)
1756                 wpa_supplicant_cancel_sched_scan(wpa_s);
1757
1758         /* NB: could check for failure and return an error */
1759         wpa_config_foreach_network(wpa_s->conf, remove_network, wpa_s);
1760         return NULL;
1761 }
1762
1763
1764 /**
1765  * wpas_dbus_handler_select_network - Attempt association with a network
1766  * @message: Pointer to incoming dbus message
1767  * @wpa_s: wpa_supplicant structure for a network interface
1768  * Returns: NULL on success or dbus error on failure
1769  *
1770  * Handler function for "SelectNetwork" method call of network interface.
1771  */
1772 DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
1773                                                struct wpa_supplicant *wpa_s)
1774 {
1775         DBusMessage *reply = NULL;
1776         const char *op;
1777         char *iface, *net_id;
1778         int id;
1779         struct wpa_ssid *ssid;
1780
1781         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1782                               DBUS_TYPE_INVALID);
1783
1784         /* Extract the network ID and ensure the network */
1785         /* is actually a child of this interface */
1786         iface = wpas_dbus_new_decompose_object_path(op,
1787                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1788                                                     &net_id);
1789         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1790             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1791                 reply = wpas_dbus_error_invalid_args(message, op);
1792                 goto out;
1793         }
1794
1795         errno = 0;
1796         id = strtoul(net_id, NULL, 10);
1797         if (errno != 0) {
1798                 reply = wpas_dbus_error_invalid_args(message, op);
1799                 goto out;
1800         }
1801
1802         ssid = wpa_config_get_network(wpa_s->conf, id);
1803         if (ssid == NULL) {
1804                 reply = wpas_dbus_error_network_unknown(message);
1805                 goto out;
1806         }
1807
1808         /* Finally, associate with the network */
1809         wpa_supplicant_select_network(wpa_s, ssid);
1810
1811 out:
1812         os_free(iface);
1813         return reply;
1814 }
1815
1816
1817 /**
1818  * wpas_dbus_handler_network_reply - Reply to a NetworkRequest signal
1819  * @message: Pointer to incoming dbus message
1820  * @wpa_s: wpa_supplicant structure for a network interface
1821  * Returns: NULL on success or dbus error on failure
1822  *
1823  * Handler function for "NetworkReply" method call of network interface.
1824  */
1825 DBusMessage * wpas_dbus_handler_network_reply(DBusMessage *message,
1826                                               struct wpa_supplicant *wpa_s)
1827 {
1828 #ifdef IEEE8021X_EAPOL
1829         DBusMessage *reply = NULL;
1830         const char *op, *field, *value;
1831         char *iface, *net_id;
1832         int id;
1833         struct wpa_ssid *ssid;
1834
1835         if (!dbus_message_get_args(message, NULL,
1836                                    DBUS_TYPE_OBJECT_PATH, &op,
1837                                    DBUS_TYPE_STRING, &field,
1838                                    DBUS_TYPE_STRING, &value,
1839                                    DBUS_TYPE_INVALID))
1840                 return wpas_dbus_error_invalid_args(message, NULL);
1841
1842         /* Extract the network ID and ensure the network */
1843         /* is actually a child of this interface */
1844         iface = wpas_dbus_new_decompose_object_path(op,
1845                                                     WPAS_DBUS_NEW_NETWORKS_PART,
1846                                                     &net_id);
1847         if (iface == NULL || net_id == NULL || !wpa_s->dbus_new_path ||
1848             os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1849                 reply = wpas_dbus_error_invalid_args(message, op);
1850                 goto out;
1851         }
1852
1853         errno = 0;
1854         id = strtoul(net_id, NULL, 10);
1855         if (errno != 0) {
1856                 reply = wpas_dbus_error_invalid_args(message, net_id);
1857                 goto out;
1858         }
1859
1860         ssid = wpa_config_get_network(wpa_s->conf, id);
1861         if (ssid == NULL) {
1862                 reply = wpas_dbus_error_network_unknown(message);
1863                 goto out;
1864         }
1865
1866         if (wpa_supplicant_ctrl_iface_ctrl_rsp_handle(wpa_s, ssid,
1867                                                       field, value) < 0)
1868                 reply = wpas_dbus_error_invalid_args(message, field);
1869         else {
1870                 /* Tell EAP to retry immediately */
1871                 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1872         }
1873
1874 out:
1875         os_free(iface);
1876         return reply;
1877 #else /* IEEE8021X_EAPOL */
1878         wpa_printf(MSG_DEBUG, "dbus: 802.1X not included");
1879         return wpas_dbus_error_unknown_error(message, "802.1X not included");
1880 #endif /* IEEE8021X_EAPOL */
1881 }
1882
1883
1884 #ifndef CONFIG_NO_CONFIG_BLOBS
1885
1886 /**
1887  * wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
1888  * @message: Pointer to incoming dbus message
1889  * @wpa_s: %wpa_supplicant data structure
1890  * Returns: A dbus message containing an error on failure or NULL on success
1891  *
1892  * Asks wpa_supplicant to internally store a binary blobs.
1893  */
1894 DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
1895                                          struct wpa_supplicant *wpa_s)
1896 {
1897         DBusMessage *reply = NULL;
1898         DBusMessageIter iter, array_iter;
1899
1900         char *blob_name;
1901         u8 *blob_data;
1902         int blob_len;
1903         struct wpa_config_blob *blob = NULL;
1904
1905         dbus_message_iter_init(message, &iter);
1906         dbus_message_iter_get_basic(&iter, &blob_name);
1907
1908         if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
1909                 return dbus_message_new_error(message,
1910                                               WPAS_DBUS_ERROR_BLOB_EXISTS,
1911                                               NULL);
1912         }
1913
1914         dbus_message_iter_next(&iter);
1915         dbus_message_iter_recurse(&iter, &array_iter);
1916
1917         dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
1918
1919         blob = os_zalloc(sizeof(*blob));
1920         if (!blob) {
1921                 reply = wpas_dbus_error_no_memory(message);
1922                 goto err;
1923         }
1924
1925         blob->data = os_malloc(blob_len);
1926         blob->name = os_strdup(blob_name);
1927         if (!blob->data || !blob->name) {
1928                 reply = wpas_dbus_error_no_memory(message);
1929                 goto err;
1930         }
1931         os_memcpy(blob->data, blob_data, blob_len);
1932         blob->len = blob_len;
1933
1934         wpa_config_set_blob(wpa_s->conf, blob);
1935         wpas_notify_blob_added(wpa_s, blob->name);
1936
1937         return reply;
1938
1939 err:
1940         if (blob) {
1941                 os_free(blob->name);
1942                 os_free(blob->data);
1943                 os_free(blob);
1944         }
1945         return reply;
1946 }
1947
1948
1949 /**
1950  * wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
1951  * @message: Pointer to incoming dbus message
1952  * @wpa_s: %wpa_supplicant data structure
1953  * Returns: A dbus message containing array of bytes (blob)
1954  *
1955  * Gets one wpa_supplicant's binary blobs.
1956  */
1957 DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
1958                                          struct wpa_supplicant *wpa_s)
1959 {
1960         DBusMessage *reply = NULL;
1961         DBusMessageIter iter, array_iter;
1962
1963         char *blob_name;
1964         const struct wpa_config_blob *blob;
1965
1966         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1967                               DBUS_TYPE_INVALID);
1968
1969         blob = wpa_config_get_blob(wpa_s->conf, blob_name);
1970         if (!blob) {
1971                 return dbus_message_new_error(message,
1972                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1973                                               "Blob id not set");
1974         }
1975
1976         reply = dbus_message_new_method_return(message);
1977         if (!reply)
1978                 return wpas_dbus_error_no_memory(message);
1979
1980         dbus_message_iter_init_append(reply, &iter);
1981
1982         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
1983                                               DBUS_TYPE_BYTE_AS_STRING,
1984                                               &array_iter) ||
1985             !dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
1986                                                   &(blob->data), blob->len) ||
1987             !dbus_message_iter_close_container(&iter, &array_iter)) {
1988                 dbus_message_unref(reply);
1989                 reply = wpas_dbus_error_no_memory(message);
1990         }
1991
1992         return reply;
1993 }
1994
1995
1996 /**
1997  * wpas_remove_handler_remove_blob - Remove named binary blob
1998  * @message: Pointer to incoming dbus message
1999  * @wpa_s: %wpa_supplicant data structure
2000  * Returns: NULL on success or dbus error
2001  *
2002  * Asks wpa_supplicant to internally remove a binary blobs.
2003  */
2004 DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
2005                                             struct wpa_supplicant *wpa_s)
2006 {
2007         DBusMessage *reply = NULL;
2008         char *blob_name;
2009
2010         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
2011                               DBUS_TYPE_INVALID);
2012
2013         if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
2014                 return dbus_message_new_error(message,
2015                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
2016                                               "Blob id not set");
2017         }
2018         wpas_notify_blob_removed(wpa_s, blob_name);
2019
2020         return reply;
2021
2022 }
2023
2024 #endif /* CONFIG_NO_CONFIG_BLOBS */
2025
2026
2027 /*
2028  * wpas_dbus_handler_flush_bss - Flush the BSS cache
2029  * @message: Pointer to incoming dbus message
2030  * @wpa_s: wpa_supplicant structure for a network interface
2031  * Returns: NULL
2032  *
2033  * Handler function for "FlushBSS" method call of network interface.
2034  */
2035 DBusMessage * wpas_dbus_handler_flush_bss(DBusMessage *message,
2036                                           struct wpa_supplicant *wpa_s)
2037 {
2038         dbus_uint32_t age;
2039
2040         dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &age,
2041                               DBUS_TYPE_INVALID);
2042
2043         if (age == 0)
2044                 wpa_bss_flush(wpa_s);
2045         else
2046                 wpa_bss_flush_by_age(wpa_s, age);
2047
2048         return NULL;
2049 }
2050
2051
2052 #ifdef CONFIG_AUTOSCAN
2053 /**
2054  * wpas_dbus_handler_autoscan - Set autoscan parameters for the interface
2055  * @message: Pointer to incoming dbus message
2056  * @wpa_s: wpa_supplicant structure for a network interface
2057  * Returns: NULL
2058  *
2059  * Handler function for "AutoScan" method call of network interface.
2060  */
2061 DBusMessage * wpas_dbus_handler_autoscan(DBusMessage *message,
2062                                          struct wpa_supplicant *wpa_s)
2063 {
2064         DBusMessage *reply = NULL;
2065         enum wpa_states state = wpa_s->wpa_state;
2066         char *arg;
2067
2068         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg,
2069                               DBUS_TYPE_INVALID);
2070
2071         if (arg != NULL && os_strlen(arg) > 0) {
2072                 char *tmp;
2073
2074                 tmp = os_strdup(arg);
2075                 if (tmp == NULL) {
2076                         reply = wpas_dbus_error_no_memory(message);
2077                 } else {
2078                         os_free(wpa_s->conf->autoscan);
2079                         wpa_s->conf->autoscan = tmp;
2080                         if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
2081                                 autoscan_init(wpa_s, 1);
2082                         else if (state == WPA_SCANNING)
2083                                 wpa_supplicant_reinit_autoscan(wpa_s);
2084                 }
2085         } else if (arg != NULL && os_strlen(arg) == 0) {
2086                 os_free(wpa_s->conf->autoscan);
2087                 wpa_s->conf->autoscan = NULL;
2088                 autoscan_deinit(wpa_s);
2089         } else
2090                 reply = dbus_message_new_error(message,
2091                                                DBUS_ERROR_INVALID_ARGS,
2092                                                NULL);
2093
2094         return reply;
2095 }
2096 #endif /* CONFIG_AUTOSCAN */
2097
2098
2099 /*
2100  * wpas_dbus_handler_eap_logoff - IEEE 802.1X EAPOL state machine logoff
2101  * @message: Pointer to incoming dbus message
2102  * @wpa_s: wpa_supplicant structure for a network interface
2103  * Returns: NULL
2104  *
2105  * Handler function for "EAPLogoff" method call of network interface.
2106  */
2107 DBusMessage * wpas_dbus_handler_eap_logoff(DBusMessage *message,
2108                                            struct wpa_supplicant *wpa_s)
2109 {
2110         eapol_sm_notify_logoff(wpa_s->eapol, TRUE);
2111         return NULL;
2112 }
2113
2114
2115 /*
2116  * wpas_dbus_handler_eap_logon - IEEE 802.1X EAPOL state machine logon
2117  * @message: Pointer to incoming dbus message
2118  * @wpa_s: wpa_supplicant structure for a network interface
2119  * Returns: NULL
2120  *
2121  * Handler function for "EAPLogin" method call of network interface.
2122  */
2123 DBusMessage * wpas_dbus_handler_eap_logon(DBusMessage *message,
2124                                           struct wpa_supplicant *wpa_s)
2125 {
2126         eapol_sm_notify_logoff(wpa_s->eapol, FALSE);
2127         return NULL;
2128 }
2129
2130
2131 #ifdef CONFIG_TDLS
2132
2133 static int get_peer_hwaddr_helper(DBusMessage *message, const char *func_name,
2134                                   u8 *peer_address, DBusMessage **error)
2135 {
2136         const char *peer_string;
2137
2138         *error = NULL;
2139
2140         if (!dbus_message_get_args(message, NULL,
2141                                    DBUS_TYPE_STRING, &peer_string,
2142                                    DBUS_TYPE_INVALID)) {
2143                 *error = wpas_dbus_error_invalid_args(message, NULL);
2144                 return -1;
2145         }
2146
2147         if (hwaddr_aton(peer_string, peer_address)) {
2148                 wpa_printf(MSG_DEBUG, "%s: invalid address '%s'",
2149                            func_name, peer_string);
2150                 *error = wpas_dbus_error_invalid_args(
2151                         message, "Invalid hardware address format");
2152                 return -1;
2153         }
2154
2155         return 0;
2156 }
2157
2158
2159 /*
2160  * wpas_dbus_handler_tdls_discover - Discover TDLS peer
2161  * @message: Pointer to incoming dbus message
2162  * @wpa_s: wpa_supplicant structure for a network interface
2163  * Returns: NULL indicating success or DBus error message on failure
2164  *
2165  * Handler function for "TDLSDiscover" method call of network interface.
2166  */
2167 DBusMessage * wpas_dbus_handler_tdls_discover(DBusMessage *message,
2168                                               struct wpa_supplicant *wpa_s)
2169 {
2170         u8 peer[ETH_ALEN];
2171         DBusMessage *error_reply;
2172         int ret;
2173
2174         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2175                 return error_reply;
2176
2177         wpa_printf(MSG_DEBUG, "DBUS TDLS_DISCOVER " MACSTR, MAC2STR(peer));
2178
2179         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2180                 ret = wpa_tdls_send_discovery_request(wpa_s->wpa, peer);
2181         else
2182                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_DISCOVERY_REQ, peer);
2183
2184         if (ret) {
2185                 return wpas_dbus_error_unknown_error(
2186                         message, "error performing TDLS discovery");
2187         }
2188
2189         return NULL;
2190 }
2191
2192
2193 /*
2194  * wpas_dbus_handler_tdls_setup - Setup TDLS session
2195  * @message: Pointer to incoming dbus message
2196  * @wpa_s: wpa_supplicant structure for a network interface
2197  * Returns: NULL indicating success or DBus error message on failure
2198  *
2199  * Handler function for "TDLSSetup" method call of network interface.
2200  */
2201 DBusMessage * wpas_dbus_handler_tdls_setup(DBusMessage *message,
2202                                            struct wpa_supplicant *wpa_s)
2203 {
2204         u8 peer[ETH_ALEN];
2205         DBusMessage *error_reply;
2206         int ret;
2207
2208         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2209                 return error_reply;
2210
2211         wpa_printf(MSG_DEBUG, "DBUS TDLS_SETUP " MACSTR, MAC2STR(peer));
2212
2213         wpa_tdls_remove(wpa_s->wpa, peer);
2214         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2215                 ret = wpa_tdls_start(wpa_s->wpa, peer);
2216         else
2217                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, peer);
2218
2219         if (ret) {
2220                 return wpas_dbus_error_unknown_error(
2221                         message, "error performing TDLS setup");
2222         }
2223
2224         return NULL;
2225 }
2226
2227
2228 /*
2229  * wpas_dbus_handler_tdls_status - Return TDLS session status
2230  * @message: Pointer to incoming dbus message
2231  * @wpa_s: wpa_supplicant structure for a network interface
2232  * Returns: A string representing the state of the link to this TDLS peer
2233  *
2234  * Handler function for "TDLSStatus" method call of network interface.
2235  */
2236 DBusMessage * wpas_dbus_handler_tdls_status(DBusMessage *message,
2237                                             struct wpa_supplicant *wpa_s)
2238 {
2239         u8 peer[ETH_ALEN];
2240         DBusMessage *reply;
2241         const char *tdls_status;
2242
2243         if (get_peer_hwaddr_helper(message, __func__, peer, &reply) < 0)
2244                 return reply;
2245
2246         wpa_printf(MSG_DEBUG, "DBUS TDLS_STATUS " MACSTR, MAC2STR(peer));
2247
2248         tdls_status = wpa_tdls_get_link_status(wpa_s->wpa, peer);
2249
2250         reply = dbus_message_new_method_return(message);
2251         dbus_message_append_args(reply, DBUS_TYPE_STRING,
2252                                  &tdls_status, DBUS_TYPE_INVALID);
2253         return reply;
2254 }
2255
2256
2257 /*
2258  * wpas_dbus_handler_tdls_teardown - Teardown TDLS session
2259  * @message: Pointer to incoming dbus message
2260  * @wpa_s: wpa_supplicant structure for a network interface
2261  * Returns: NULL indicating success or DBus error message on failure
2262  *
2263  * Handler function for "TDLSTeardown" method call of network interface.
2264  */
2265 DBusMessage * wpas_dbus_handler_tdls_teardown(DBusMessage *message,
2266                                               struct wpa_supplicant *wpa_s)
2267 {
2268         u8 peer[ETH_ALEN];
2269         DBusMessage *error_reply;
2270         int ret;
2271
2272         if (get_peer_hwaddr_helper(message, __func__, peer, &error_reply) < 0)
2273                 return error_reply;
2274
2275         wpa_printf(MSG_DEBUG, "DBUS TDLS_TEARDOWN " MACSTR, MAC2STR(peer));
2276
2277         if (wpa_tdls_is_external_setup(wpa_s->wpa))
2278                 ret = wpa_tdls_teardown_link(
2279                         wpa_s->wpa, peer,
2280                         WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED);
2281         else
2282                 ret = wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, peer);
2283
2284         if (ret) {
2285                 return wpas_dbus_error_unknown_error(
2286                         message, "error performing TDLS teardown");
2287         }
2288
2289         return NULL;
2290 }
2291
2292 #endif /* CONFIG_TDLS */
2293
2294
2295 #ifndef CONFIG_NO_CONFIG_WRITE
2296 /**
2297  * wpas_dbus_handler_save_config - Save configuration to configuration file
2298  * @message: Pointer to incoming dbus message
2299  * @wpa_s: wpa_supplicant structure for a network interface
2300  * Returns: NULL on Success, Otherwise errror message
2301  *
2302  * Handler function for "SaveConfig" method call of network interface.
2303  */
2304 DBusMessage * wpas_dbus_handler_save_config(DBusMessage *message,
2305                                             struct wpa_supplicant *wpa_s)
2306 {
2307         int ret;
2308
2309         if (!wpa_s->conf->update_config) {
2310                 return wpas_dbus_error_unknown_error(
2311                         message,
2312                         "Not allowed to update configuration (update_config=0)");
2313         }
2314
2315         ret = wpa_config_write(wpa_s->confname, wpa_s->conf);
2316         if (ret)
2317                 return wpas_dbus_error_unknown_error(
2318                         message, "Failed to update configuration");
2319         return NULL;
2320 }
2321 #endif /* CONFIG_NO_CONFIG_WRITE */
2322
2323
2324 /**
2325  * wpas_dbus_handler_set_pkcs11_engine_and_module_path - Set PKCS #11 engine and module path
2326  * @message: Pointer to incoming dbus message
2327  * @wpa_s: %wpa_supplicant data structure
2328  * Returns: A dbus message containing an error on failure or NULL on success
2329  *
2330  * Sets the PKCS #11 engine and module path.
2331  */
2332 DBusMessage * wpas_dbus_handler_set_pkcs11_engine_and_module_path(
2333         DBusMessage *message, struct wpa_supplicant *wpa_s)
2334 {
2335         DBusMessageIter iter;
2336         char *value = NULL;
2337         char *pkcs11_engine_path = NULL;
2338         char *pkcs11_module_path = NULL;
2339
2340         dbus_message_iter_init(message, &iter);
2341         dbus_message_iter_get_basic(&iter, &value);
2342         if (value == NULL) {
2343                 return dbus_message_new_error(
2344                         message, DBUS_ERROR_INVALID_ARGS,
2345                         "Invalid pkcs11_engine_path argument");
2346         }
2347         /* Empty path defaults to NULL */
2348         if (os_strlen(value))
2349                 pkcs11_engine_path = value;
2350
2351         dbus_message_iter_next(&iter);
2352         dbus_message_iter_get_basic(&iter, &value);
2353         if (value == NULL) {
2354                 os_free(pkcs11_engine_path);
2355                 return dbus_message_new_error(
2356                         message, DBUS_ERROR_INVALID_ARGS,
2357                         "Invalid pkcs11_module_path argument");
2358         }
2359         /* Empty path defaults to NULL */
2360         if (os_strlen(value))
2361                 pkcs11_module_path = value;
2362
2363         if (wpas_set_pkcs11_engine_and_module_path(wpa_s, pkcs11_engine_path,
2364                                                    pkcs11_module_path))
2365                 return dbus_message_new_error(
2366                         message, DBUS_ERROR_FAILED,
2367                         "Reinit of the EAPOL state machine with the new PKCS #11 engine and module path failed.");
2368
2369         if (wpa_s->dbus_new_path) {
2370                 wpa_dbus_mark_property_changed(
2371                         wpa_s->global->dbus, wpa_s->dbus_new_path,
2372                         WPAS_DBUS_NEW_IFACE_INTERFACE, "PKCS11EnginePath");
2373                 wpa_dbus_mark_property_changed(
2374                         wpa_s->global->dbus, wpa_s->dbus_new_path,
2375                         WPAS_DBUS_NEW_IFACE_INTERFACE, "PKCS11ModulePath");
2376         }
2377
2378         return NULL;
2379 }
2380
2381
2382 /**
2383  * wpas_dbus_getter_capabilities - Return interface capabilities
2384  * @iter: Pointer to incoming dbus message iter
2385  * @error: Location to store error on failure
2386  * @user_data: Function specific data
2387  * Returns: TRUE on success, FALSE on failure
2388  *
2389  * Getter for "Capabilities" property of an interface.
2390  */
2391 dbus_bool_t wpas_dbus_getter_capabilities(
2392         const struct wpa_dbus_property_desc *property_desc,
2393         DBusMessageIter *iter, DBusError *error, void *user_data)
2394 {
2395         struct wpa_supplicant *wpa_s = user_data;
2396         struct wpa_driver_capa capa;
2397         int res;
2398         DBusMessageIter iter_dict, iter_dict_entry, iter_dict_val, iter_array,
2399                 variant_iter;
2400         const char *scans[] = { "active", "passive", "ssid" };
2401
2402         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
2403                                               "a{sv}", &variant_iter) ||
2404             !wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
2405                 goto nomem;
2406
2407         res = wpa_drv_get_capa(wpa_s, &capa);
2408
2409         /***** pairwise cipher */
2410         if (res < 0) {
2411                 const char *args[] = {"ccmp", "tkip", "none"};
2412
2413                 if (!wpa_dbus_dict_append_string_array(
2414                             &iter_dict, "Pairwise", args,
2415                             ARRAY_SIZE(args)))
2416                         goto nomem;
2417         } else {
2418                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
2419                                                       &iter_dict_entry,
2420                                                       &iter_dict_val,
2421                                                       &iter_array) ||
2422                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP_256) &&
2423                      !wpa_dbus_dict_string_array_add_element(
2424                              &iter_array, "ccmp-256")) ||
2425                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP_256) &&
2426                      !wpa_dbus_dict_string_array_add_element(
2427                              &iter_array, "gcmp-256")) ||
2428                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) &&
2429                      !wpa_dbus_dict_string_array_add_element(
2430                              &iter_array, "ccmp")) ||
2431                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) &&
2432                      !wpa_dbus_dict_string_array_add_element(
2433                              &iter_array, "gcmp")) ||
2434                     ((capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) &&
2435                      !wpa_dbus_dict_string_array_add_element(
2436                              &iter_array, "tkip")) ||
2437                     ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) &&
2438                      !wpa_dbus_dict_string_array_add_element(
2439                              &iter_array, "none")) ||
2440                     !wpa_dbus_dict_end_string_array(&iter_dict,
2441                                                     &iter_dict_entry,
2442                                                     &iter_dict_val,
2443                                                     &iter_array))
2444                         goto nomem;
2445         }
2446
2447         /***** group cipher */
2448         if (res < 0) {
2449                 const char *args[] = {
2450                         "ccmp", "tkip", "wep104", "wep40"
2451                 };
2452
2453                 if (!wpa_dbus_dict_append_string_array(
2454                             &iter_dict, "Group", args,
2455                             ARRAY_SIZE(args)))
2456                         goto nomem;
2457         } else {
2458                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
2459                                                       &iter_dict_entry,
2460                                                       &iter_dict_val,
2461                                                       &iter_array) ||
2462                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP_256) &&
2463                      !wpa_dbus_dict_string_array_add_element(
2464                              &iter_array, "ccmp-256")) ||
2465                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP_256) &&
2466                      !wpa_dbus_dict_string_array_add_element(
2467                              &iter_array, "gcmp-256")) ||
2468                     ((capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) &&
2469                      !wpa_dbus_dict_string_array_add_element(
2470                              &iter_array, "ccmp")) ||
2471                     ((capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) &&
2472                      !wpa_dbus_dict_string_array_add_element(
2473                              &iter_array, "gcmp")) ||
2474                     ((capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) &&
2475                      !wpa_dbus_dict_string_array_add_element(
2476                              &iter_array, "tkip")) ||
2477                     ((capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) &&
2478                      !wpa_dbus_dict_string_array_add_element(
2479                              &iter_array, "wep104")) ||
2480                     ((capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) &&
2481                      !wpa_dbus_dict_string_array_add_element(
2482                              &iter_array, "wep40")) ||
2483                     !wpa_dbus_dict_end_string_array(&iter_dict,
2484                                                     &iter_dict_entry,
2485                                                     &iter_dict_val,
2486                                                     &iter_array))
2487                         goto nomem;
2488         }
2489
2490         /***** key management */
2491         if (res < 0) {
2492                 const char *args[] = {
2493                         "wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
2494 #ifdef CONFIG_WPS
2495                         "wps",
2496 #endif /* CONFIG_WPS */
2497                         "none"
2498                 };
2499                 if (!wpa_dbus_dict_append_string_array(
2500                             &iter_dict, "KeyMgmt", args,
2501                             ARRAY_SIZE(args)))
2502                         goto nomem;
2503         } else {
2504                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
2505                                                       &iter_dict_entry,
2506                                                       &iter_dict_val,
2507                                                       &iter_array) ||
2508                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2509                                                             "none") ||
2510                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2511                                                             "ieee8021x"))
2512                         goto nomem;
2513
2514                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2515                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
2516                         if (!wpa_dbus_dict_string_array_add_element(
2517                                     &iter_array, "wpa-eap") ||
2518                             ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT) &&
2519                              !wpa_dbus_dict_string_array_add_element(
2520                                      &iter_array, "wpa-ft-eap")))
2521                                 goto nomem;
2522
2523 /* TODO: Ensure that driver actually supports sha256 encryption. */
2524 #ifdef CONFIG_IEEE80211W
2525                         if (!wpa_dbus_dict_string_array_add_element(
2526                                     &iter_array, "wpa-eap-sha256"))
2527                                 goto nomem;
2528 #endif /* CONFIG_IEEE80211W */
2529                 }
2530
2531                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2532                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
2533                         if (!wpa_dbus_dict_string_array_add_element(
2534                                     &iter_array, "wpa-psk") ||
2535                             ((capa.key_mgmt &
2536                               WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK) &&
2537                              !wpa_dbus_dict_string_array_add_element(
2538                                      &iter_array, "wpa-ft-psk")))
2539                                 goto nomem;
2540
2541 /* TODO: Ensure that driver actually supports sha256 encryption. */
2542 #ifdef CONFIG_IEEE80211W
2543                         if (!wpa_dbus_dict_string_array_add_element(
2544                                     &iter_array, "wpa-psk-sha256"))
2545                                 goto nomem;
2546 #endif /* CONFIG_IEEE80211W */
2547                 }
2548
2549                 if ((capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) &&
2550                     !wpa_dbus_dict_string_array_add_element(&iter_array,
2551                                                             "wpa-none"))
2552                         goto nomem;
2553
2554
2555 #ifdef CONFIG_WPS
2556                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
2557                                                             "wps"))
2558                         goto nomem;
2559 #endif /* CONFIG_WPS */
2560
2561                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2562                                                     &iter_dict_entry,
2563                                                     &iter_dict_val,
2564                                                     &iter_array))
2565                         goto nomem;
2566         }
2567
2568         /***** WPA protocol */
2569         if (res < 0) {
2570                 const char *args[] = { "rsn", "wpa" };
2571
2572                 if (!wpa_dbus_dict_append_string_array(
2573                             &iter_dict, "Protocol", args,
2574                             ARRAY_SIZE(args)))
2575                         goto nomem;
2576         } else {
2577                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
2578                                                       &iter_dict_entry,
2579                                                       &iter_dict_val,
2580                                                       &iter_array) ||
2581                     ((capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2582                                        WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) &&
2583                      !wpa_dbus_dict_string_array_add_element(
2584                              &iter_array, "rsn")) ||
2585                     ((capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2586                                        WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) &&
2587                      !wpa_dbus_dict_string_array_add_element(
2588                              &iter_array, "wpa")) ||
2589                     !wpa_dbus_dict_end_string_array(&iter_dict,
2590                                                     &iter_dict_entry,
2591                                                     &iter_dict_val,
2592                                                     &iter_array))
2593                         goto nomem;
2594         }
2595
2596         /***** auth alg */
2597         if (res < 0) {
2598                 const char *args[] = { "open", "shared", "leap" };
2599
2600                 if (!wpa_dbus_dict_append_string_array(
2601                             &iter_dict, "AuthAlg", args,
2602                             ARRAY_SIZE(args)))
2603                         goto nomem;
2604         } else {
2605                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
2606                                                       &iter_dict_entry,
2607                                                       &iter_dict_val,
2608                                                       &iter_array))
2609                         goto nomem;
2610
2611                 if (((capa.auth & WPA_DRIVER_AUTH_OPEN) &&
2612                      !wpa_dbus_dict_string_array_add_element(
2613                              &iter_array, "open")) ||
2614                     ((capa.auth & WPA_DRIVER_AUTH_SHARED) &&
2615                      !wpa_dbus_dict_string_array_add_element(
2616                              &iter_array, "shared")) ||
2617                     ((capa.auth & WPA_DRIVER_AUTH_LEAP) &&
2618                      !wpa_dbus_dict_string_array_add_element(
2619                              &iter_array, "leap")) ||
2620                     !wpa_dbus_dict_end_string_array(&iter_dict,
2621                                                     &iter_dict_entry,
2622                                                     &iter_dict_val,
2623                                                     &iter_array))
2624                         goto nomem;
2625         }
2626
2627         /***** Scan */
2628         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
2629                                                ARRAY_SIZE(scans)))
2630                 goto nomem;
2631
2632         /***** Modes */
2633         if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Modes",
2634                                               &iter_dict_entry,
2635                                               &iter_dict_val,
2636                                               &iter_array) ||
2637             !wpa_dbus_dict_string_array_add_element(
2638                     &iter_array, "infrastructure") ||
2639             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_IBSS) &&
2640              !wpa_dbus_dict_string_array_add_element(
2641                      &iter_array, "ad-hoc")) ||
2642             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_AP) &&
2643              !wpa_dbus_dict_string_array_add_element(
2644                      &iter_array, "ap")) ||
2645             (res >= 0 && (capa.flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
2646              !wpa_s->conf->p2p_disabled &&
2647              !wpa_dbus_dict_string_array_add_element(
2648                      &iter_array, "p2p")) ||
2649             !wpa_dbus_dict_end_string_array(&iter_dict,
2650                                             &iter_dict_entry,
2651                                             &iter_dict_val,
2652                                             &iter_array))
2653                 goto nomem;
2654         /***** Modes end */
2655
2656         if (res >= 0) {
2657                 dbus_int32_t max_scan_ssid = capa.max_scan_ssids;
2658
2659                 if (!wpa_dbus_dict_append_int32(&iter_dict, "MaxScanSSID",
2660                                                 max_scan_ssid))
2661                         goto nomem;
2662         }
2663
2664         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
2665             !dbus_message_iter_close_container(iter, &variant_iter))
2666                 goto nomem;
2667
2668         return TRUE;
2669
2670 nomem:
2671         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2672         return FALSE;
2673 }
2674
2675
2676 /**
2677  * wpas_dbus_getter_state - Get interface state
2678  * @iter: Pointer to incoming dbus message iter
2679  * @error: Location to store error on failure
2680  * @user_data: Function specific data
2681  * Returns: TRUE on success, FALSE on failure
2682  *
2683  * Getter for "State" property.
2684  */
2685 dbus_bool_t wpas_dbus_getter_state(
2686         const struct wpa_dbus_property_desc *property_desc,
2687         DBusMessageIter *iter, DBusError *error, void *user_data)
2688 {
2689         struct wpa_supplicant *wpa_s = user_data;
2690         const char *str_state;
2691         char *state_ls, *tmp;
2692         dbus_bool_t success = FALSE;
2693
2694         str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
2695
2696         /* make state string lowercase to fit new DBus API convention
2697          */
2698         state_ls = tmp = os_strdup(str_state);
2699         if (!tmp) {
2700                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2701                 return FALSE;
2702         }
2703         while (*tmp) {
2704                 *tmp = tolower(*tmp);
2705                 tmp++;
2706         }
2707
2708         success = wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2709                                                    &state_ls, error);
2710
2711         os_free(state_ls);
2712
2713         return success;
2714 }
2715
2716
2717 /**
2718  * wpas_dbus_new_iface_get_scanning - Get interface scanning state
2719  * @iter: Pointer to incoming dbus message iter
2720  * @error: Location to store error on failure
2721  * @user_data: Function specific data
2722  * Returns: TRUE on success, FALSE on failure
2723  *
2724  * Getter for "scanning" property.
2725  */
2726 dbus_bool_t wpas_dbus_getter_scanning(
2727         const struct wpa_dbus_property_desc *property_desc,
2728         DBusMessageIter *iter, DBusError *error, void *user_data)
2729 {
2730         struct wpa_supplicant *wpa_s = user_data;
2731         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
2732
2733         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2734                                                 &scanning, error);
2735 }
2736
2737
2738 /**
2739  * wpas_dbus_getter_ap_scan - Control roaming mode
2740  * @iter: Pointer to incoming dbus message iter
2741  * @error: Location to store error on failure
2742  * @user_data: Function specific data
2743  * Returns: TRUE on success, FALSE on failure
2744  *
2745  * Getter function for "ApScan" property.
2746  */
2747 dbus_bool_t wpas_dbus_getter_ap_scan(
2748         const struct wpa_dbus_property_desc *property_desc,
2749         DBusMessageIter *iter, DBusError *error, void *user_data)
2750 {
2751         struct wpa_supplicant *wpa_s = user_data;
2752         dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
2753
2754         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2755                                                 &ap_scan, error);
2756 }
2757
2758
2759 /**
2760  * wpas_dbus_setter_ap_scan - Control roaming mode
2761  * @iter: Pointer to incoming dbus message iter
2762  * @error: Location to store error on failure
2763  * @user_data: Function specific data
2764  * Returns: TRUE on success, FALSE on failure
2765  *
2766  * Setter function for "ApScan" property.
2767  */
2768 dbus_bool_t wpas_dbus_setter_ap_scan(
2769         const struct wpa_dbus_property_desc *property_desc,
2770         DBusMessageIter *iter, DBusError *error, void *user_data)
2771 {
2772         struct wpa_supplicant *wpa_s = user_data;
2773         dbus_uint32_t ap_scan;
2774
2775         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2776                                               &ap_scan))
2777                 return FALSE;
2778
2779         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
2780                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2781                                      "ap_scan must be 0, 1, or 2");
2782                 return FALSE;
2783         }
2784         return TRUE;
2785 }
2786
2787
2788 /**
2789  * wpas_dbus_getter_fast_reauth - Control fast
2790  * reauthentication (TLS session resumption)
2791  * @iter: Pointer to incoming dbus message iter
2792  * @error: Location to store error on failure
2793  * @user_data: Function specific data
2794  * Returns: TRUE on success, FALSE on failure
2795  *
2796  * Getter function for "FastReauth" property.
2797  */
2798 dbus_bool_t wpas_dbus_getter_fast_reauth(
2799         const struct wpa_dbus_property_desc *property_desc,
2800         DBusMessageIter *iter, DBusError *error, void *user_data)
2801 {
2802         struct wpa_supplicant *wpa_s = user_data;
2803         dbus_bool_t fast_reauth = wpa_s->conf->fast_reauth ? TRUE : FALSE;
2804
2805         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2806                                                 &fast_reauth, error);
2807 }
2808
2809
2810 /**
2811  * wpas_dbus_setter_fast_reauth - Control fast
2812  * reauthentication (TLS session resumption)
2813  * @iter: Pointer to incoming dbus message iter
2814  * @error: Location to store error on failure
2815  * @user_data: Function specific data
2816  * Returns: TRUE on success, FALSE on failure
2817  *
2818  * Setter function for "FastReauth" property.
2819  */
2820 dbus_bool_t wpas_dbus_setter_fast_reauth(
2821         const struct wpa_dbus_property_desc *property_desc,
2822         DBusMessageIter *iter, DBusError *error, void *user_data)
2823 {
2824         struct wpa_supplicant *wpa_s = user_data;
2825         dbus_bool_t fast_reauth;
2826
2827         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
2828                                               &fast_reauth))
2829                 return FALSE;
2830
2831         wpa_s->conf->fast_reauth = fast_reauth;
2832         return TRUE;
2833 }
2834
2835
2836 /**
2837  * wpas_dbus_getter_disconnect_reason - Get most recent reason for disconnect
2838  * @iter: Pointer to incoming dbus message iter
2839  * @error: Location to store error on failure
2840  * @user_data: Function specific data
2841  * Returns: TRUE on success, FALSE on failure
2842  *
2843  * Getter for "DisconnectReason" property.  The reason is negative if it is
2844  * locally generated.
2845  */
2846 dbus_bool_t wpas_dbus_getter_disconnect_reason(
2847         const struct wpa_dbus_property_desc *property_desc,
2848         DBusMessageIter *iter, DBusError *error, void *user_data)
2849 {
2850         struct wpa_supplicant *wpa_s = user_data;
2851         dbus_int32_t reason = wpa_s->disconnect_reason;
2852
2853         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2854                                                 &reason, error);
2855 }
2856
2857
2858 /**
2859  * wpas_dbus_getter_assoc_status_code - Get most recent failed assoc status code
2860  * @iter: Pointer to incoming dbus message iter
2861  * @error: Location to store error on failure
2862  * @user_data: Function specific data
2863  * Returns: TRUE on success, FALSE on failure
2864  *
2865  * Getter for "AssocStatusCode" property.
2866  */
2867 dbus_bool_t wpas_dbus_getter_assoc_status_code(
2868         const struct wpa_dbus_property_desc *property_desc,
2869         DBusMessageIter *iter, DBusError *error, void *user_data)
2870 {
2871         struct wpa_supplicant *wpa_s = user_data;
2872         dbus_int32_t status_code = wpa_s->assoc_status_code;
2873
2874         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2875                                                 &status_code, error);
2876 }
2877
2878
2879 /**
2880  * wpas_dbus_getter_bss_expire_age - Get BSS entry expiration age
2881  * @iter: Pointer to incoming dbus message iter
2882  * @error: Location to store error on failure
2883  * @user_data: Function specific data
2884  * Returns: TRUE on success, FALSE on failure
2885  *
2886  * Getter function for "BSSExpireAge" property.
2887  */
2888 dbus_bool_t wpas_dbus_getter_bss_expire_age(
2889         const struct wpa_dbus_property_desc *property_desc,
2890         DBusMessageIter *iter, DBusError *error, void *user_data)
2891 {
2892         struct wpa_supplicant *wpa_s = user_data;
2893         dbus_uint32_t expire_age = wpa_s->conf->bss_expiration_age;
2894
2895         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2896                                                 &expire_age, error);
2897 }
2898
2899
2900 /**
2901  * wpas_dbus_setter_bss_expire_age - Control BSS entry expiration age
2902  * @iter: Pointer to incoming dbus message iter
2903  * @error: Location to store error on failure
2904  * @user_data: Function specific data
2905  * Returns: TRUE on success, FALSE on failure
2906  *
2907  * Setter function for "BSSExpireAge" property.
2908  */
2909 dbus_bool_t wpas_dbus_setter_bss_expire_age(
2910         const struct wpa_dbus_property_desc *property_desc,
2911         DBusMessageIter *iter, DBusError *error, void *user_data)
2912 {
2913         struct wpa_supplicant *wpa_s = user_data;
2914         dbus_uint32_t expire_age;
2915
2916         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2917                                               &expire_age))
2918                 return FALSE;
2919
2920         if (wpa_supplicant_set_bss_expiration_age(wpa_s, expire_age)) {
2921                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2922                                      "BSSExpireAge must be >= 10");
2923                 return FALSE;
2924         }
2925         return TRUE;
2926 }
2927
2928
2929 /**
2930  * wpas_dbus_getter_bss_expire_count - Get BSS entry expiration scan count
2931  * @iter: Pointer to incoming dbus message iter
2932  * @error: Location to store error on failure
2933  * @user_data: Function specific data
2934  * Returns: TRUE on success, FALSE on failure
2935  *
2936  * Getter function for "BSSExpireCount" property.
2937  */
2938 dbus_bool_t wpas_dbus_getter_bss_expire_count(
2939         const struct wpa_dbus_property_desc *property_desc,
2940         DBusMessageIter *iter, DBusError *error, void *user_data)
2941 {
2942         struct wpa_supplicant *wpa_s = user_data;
2943         dbus_uint32_t expire_count = wpa_s->conf->bss_expiration_scan_count;
2944
2945         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2946                                                 &expire_count, error);
2947 }
2948
2949
2950 /**
2951  * wpas_dbus_setter_bss_expire_count - Control BSS entry expiration scan count
2952  * @iter: Pointer to incoming dbus message iter
2953  * @error: Location to store error on failure
2954  * @user_data: Function specific data
2955  * Returns: TRUE on success, FALSE on failure
2956  *
2957  * Setter function for "BSSExpireCount" property.
2958  */
2959 dbus_bool_t wpas_dbus_setter_bss_expire_count(
2960         const struct wpa_dbus_property_desc *property_desc,
2961         DBusMessageIter *iter, DBusError *error, void *user_data)
2962 {
2963         struct wpa_supplicant *wpa_s = user_data;
2964         dbus_uint32_t expire_count;
2965
2966         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2967                                               &expire_count))
2968                 return FALSE;
2969
2970         if (wpa_supplicant_set_bss_expiration_count(wpa_s, expire_count)) {
2971                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2972                                      "BSSExpireCount must be > 0");
2973                 return FALSE;
2974         }
2975         return TRUE;
2976 }
2977
2978
2979 /**
2980  * wpas_dbus_getter_country - Control country code
2981  * @iter: Pointer to incoming dbus message iter
2982  * @error: Location to store error on failure
2983  * @user_data: Function specific data
2984  * Returns: TRUE on success, FALSE on failure
2985  *
2986  * Getter function for "Country" property.
2987  */
2988 dbus_bool_t wpas_dbus_getter_country(
2989         const struct wpa_dbus_property_desc *property_desc,
2990         DBusMessageIter *iter, DBusError *error, void *user_data)
2991 {
2992         struct wpa_supplicant *wpa_s = user_data;
2993         char country[3];
2994         char *str = country;
2995
2996         country[0] = wpa_s->conf->country[0];
2997         country[1] = wpa_s->conf->country[1];
2998         country[2] = '\0';
2999
3000         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3001                                                 &str, error);
3002 }
3003
3004
3005 /**
3006  * wpas_dbus_setter_country - Control country code
3007  * @iter: Pointer to incoming dbus message iter
3008  * @error: Location to store error on failure
3009  * @user_data: Function specific data
3010  * Returns: TRUE on success, FALSE on failure
3011  *
3012  * Setter function for "Country" property.
3013  */
3014 dbus_bool_t wpas_dbus_setter_country(
3015         const struct wpa_dbus_property_desc *property_desc,
3016         DBusMessageIter *iter, DBusError *error, void *user_data)
3017 {
3018         struct wpa_supplicant *wpa_s = user_data;
3019         const char *country;
3020
3021         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
3022                                               &country))
3023                 return FALSE;
3024
3025         if (!country[0] || !country[1]) {
3026                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3027                                      "invalid country code");
3028                 return FALSE;
3029         }
3030
3031         if (wpa_s->drv_priv != NULL && wpa_drv_set_country(wpa_s, country)) {
3032                 wpa_printf(MSG_DEBUG, "Failed to set country");
3033                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3034                                      "failed to set country code");
3035                 return FALSE;
3036         }
3037
3038         wpa_s->conf->country[0] = country[0];
3039         wpa_s->conf->country[1] = country[1];
3040         return TRUE;
3041 }
3042
3043
3044 /**
3045  * wpas_dbus_getter_scan_interval - Get scan interval
3046  * @iter: Pointer to incoming dbus message iter
3047  * @error: Location to store error on failure
3048  * @user_data: Function specific data
3049  * Returns: TRUE on success, FALSE on failure
3050  *
3051  * Getter function for "ScanInterval" property.
3052  */
3053 dbus_bool_t wpas_dbus_getter_scan_interval(
3054         const struct wpa_dbus_property_desc *property_desc,
3055         DBusMessageIter *iter, DBusError *error, void *user_data)
3056 {
3057         struct wpa_supplicant *wpa_s = user_data;
3058         dbus_int32_t scan_interval = wpa_s->scan_interval;
3059
3060         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
3061                                                 &scan_interval, error);
3062 }
3063
3064
3065 /**
3066  * wpas_dbus_setter_scan_interval - Control scan interval
3067  * @iter: Pointer to incoming dbus message iter
3068  * @error: Location to store error on failure
3069  * @user_data: Function specific data
3070  * Returns: TRUE on success, FALSE on failure
3071  *
3072  * Setter function for "ScanInterval" property.
3073  */
3074 dbus_bool_t wpas_dbus_setter_scan_interval(
3075         const struct wpa_dbus_property_desc *property_desc,
3076         DBusMessageIter *iter, DBusError *error, void *user_data)
3077 {
3078         struct wpa_supplicant *wpa_s = user_data;
3079         dbus_int32_t scan_interval;
3080
3081         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_INT32,
3082                                               &scan_interval))
3083                 return FALSE;
3084
3085         if (wpa_supplicant_set_scan_interval(wpa_s, scan_interval)) {
3086                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3087                                      "scan_interval must be >= 0");
3088                 return FALSE;
3089         }
3090         return TRUE;
3091 }
3092
3093
3094 /**
3095  * wpas_dbus_getter_ifname - Get interface name
3096  * @iter: Pointer to incoming dbus message iter
3097  * @error: Location to store error on failure
3098  * @user_data: Function specific data
3099  * Returns: TRUE on success, FALSE on failure
3100  *
3101  * Getter for "Ifname" property.
3102  */
3103 dbus_bool_t wpas_dbus_getter_ifname(
3104         const struct wpa_dbus_property_desc *property_desc,
3105         DBusMessageIter *iter, DBusError *error, void *user_data)
3106 {
3107         struct wpa_supplicant *wpa_s = user_data;
3108         const char *ifname = wpa_s->ifname;
3109
3110         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3111                                                 &ifname, error);
3112 }
3113
3114
3115 /**
3116  * wpas_dbus_getter_driver - Get interface name
3117  * @iter: Pointer to incoming dbus message iter
3118  * @error: Location to store error on failure
3119  * @user_data: Function specific data
3120  * Returns: TRUE on success, FALSE on failure
3121  *
3122  * Getter for "Driver" property.
3123  */
3124 dbus_bool_t wpas_dbus_getter_driver(
3125         const struct wpa_dbus_property_desc *property_desc,
3126         DBusMessageIter *iter, DBusError *error, void *user_data)
3127 {
3128         struct wpa_supplicant *wpa_s = user_data;
3129         const char *driver;
3130
3131         if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
3132                 wpa_printf(MSG_DEBUG, "%s[dbus]: wpa_s has no driver set",
3133                            __func__);
3134                 dbus_set_error(error, DBUS_ERROR_FAILED, "%s: no driver set",
3135                                __func__);
3136                 return FALSE;
3137         }
3138
3139         driver = wpa_s->driver->name;
3140         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3141                                                 &driver, error);
3142 }
3143
3144
3145 /**
3146  * wpas_dbus_getter_current_bss - Get current bss object path
3147  * @iter: Pointer to incoming dbus message iter
3148  * @error: Location to store error on failure
3149  * @user_data: Function specific data
3150  * Returns: TRUE on success, FALSE on failure
3151  *
3152  * Getter for "CurrentBSS" property.
3153  */
3154 dbus_bool_t wpas_dbus_getter_current_bss(
3155         const struct wpa_dbus_property_desc *property_desc,
3156         DBusMessageIter *iter, DBusError *error, void *user_data)
3157 {
3158         struct wpa_supplicant *wpa_s = user_data;
3159         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
3160
3161         if (wpa_s->current_bss && wpa_s->dbus_new_path)
3162                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
3163                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
3164                             wpa_s->dbus_new_path, wpa_s->current_bss->id);
3165         else
3166                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
3167
3168         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
3169                                                 &bss_obj_path, error);
3170 }
3171
3172
3173 /**
3174  * wpas_dbus_getter_current_network - Get current network object path
3175  * @iter: Pointer to incoming dbus message iter
3176  * @error: Location to store error on failure
3177  * @user_data: Function specific data
3178  * Returns: TRUE on success, FALSE on failure
3179  *
3180  * Getter for "CurrentNetwork" property.
3181  */
3182 dbus_bool_t wpas_dbus_getter_current_network(
3183         const struct wpa_dbus_property_desc *property_desc,
3184         DBusMessageIter *iter, DBusError *error, void *user_data)
3185 {
3186         struct wpa_supplicant *wpa_s = user_data;
3187         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
3188
3189         if (wpa_s->current_ssid && wpa_s->dbus_new_path)
3190                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
3191                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
3192                             wpa_s->dbus_new_path, wpa_s->current_ssid->id);
3193         else
3194                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
3195
3196         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
3197                                                 &net_obj_path, error);
3198 }
3199
3200
3201 /**
3202  * wpas_dbus_getter_current_auth_mode - Get current authentication type
3203  * @iter: Pointer to incoming dbus message iter
3204  * @error: Location to store error on failure
3205  * @user_data: Function specific data
3206  * Returns: TRUE on success, FALSE on failure
3207  *
3208  * Getter for "CurrentAuthMode" property.
3209  */
3210 dbus_bool_t wpas_dbus_getter_current_auth_mode(
3211         const struct wpa_dbus_property_desc *property_desc,
3212         DBusMessageIter *iter, DBusError *error, void *user_data)
3213 {
3214         struct wpa_supplicant *wpa_s = user_data;
3215         const char *eap_mode;
3216         const char *auth_mode;
3217         char eap_mode_buf[WPAS_DBUS_AUTH_MODE_MAX];
3218
3219         if (wpa_s->wpa_state != WPA_COMPLETED) {
3220                 auth_mode = "INACTIVE";
3221         } else if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
3222             wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
3223                 eap_mode = wpa_supplicant_get_eap_mode(wpa_s);
3224                 os_snprintf(eap_mode_buf, WPAS_DBUS_AUTH_MODE_MAX,
3225                             "EAP-%s", eap_mode);
3226                 auth_mode = eap_mode_buf;
3227
3228         } else if (wpa_s->current_ssid) {
3229                 auth_mode = wpa_key_mgmt_txt(wpa_s->key_mgmt,
3230                                              wpa_s->current_ssid->proto);
3231         } else {
3232                 auth_mode = "UNKNOWN";
3233         }
3234
3235         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3236                                                 &auth_mode, error);
3237 }
3238
3239
3240 /**
3241  * wpas_dbus_getter_bridge_ifname - Get interface name
3242  * @iter: Pointer to incoming dbus message iter
3243  * @error: Location to store error on failure
3244  * @user_data: Function specific data
3245  * Returns: TRUE on success, FALSE on failure
3246  *
3247  * Getter for "BridgeIfname" property.
3248  */
3249 dbus_bool_t wpas_dbus_getter_bridge_ifname(
3250         const struct wpa_dbus_property_desc *property_desc,
3251         DBusMessageIter *iter, DBusError *error, void *user_data)
3252 {
3253         struct wpa_supplicant *wpa_s = user_data;
3254         const char *bridge_ifname = wpa_s->bridge_ifname;
3255
3256         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3257                                                 &bridge_ifname, error);
3258 }
3259
3260
3261 /**
3262  * wpas_dbus_getter_bsss - Get array of BSSs objects
3263  * @iter: Pointer to incoming dbus message iter
3264  * @error: Location to store error on failure
3265  * @user_data: Function specific data
3266  * Returns: TRUE on success, FALSE on failure
3267  *
3268  * Getter for "BSSs" property.
3269  */
3270 dbus_bool_t wpas_dbus_getter_bsss(
3271         const struct wpa_dbus_property_desc *property_desc,
3272         DBusMessageIter *iter, DBusError *error, void *user_data)
3273 {
3274         struct wpa_supplicant *wpa_s = user_data;
3275         struct wpa_bss *bss;
3276         char **paths;
3277         unsigned int i = 0;
3278         dbus_bool_t success = FALSE;
3279
3280         if (!wpa_s->dbus_new_path) {
3281                 dbus_set_error(error, DBUS_ERROR_FAILED,
3282                                "%s: no D-Bus interface", __func__);
3283                 return FALSE;
3284         }
3285
3286         paths = os_calloc(wpa_s->num_bss, sizeof(char *));
3287         if (!paths) {
3288                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3289                 return FALSE;
3290         }
3291
3292         /* Loop through scan results and append each result's object path */
3293         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
3294                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
3295                 if (paths[i] == NULL) {
3296                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
3297                                              "no memory");
3298                         goto out;
3299                 }
3300                 /* Construct the object path for this BSS. */
3301                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
3302                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
3303                             wpa_s->dbus_new_path, bss->id);
3304         }
3305
3306         success = wpas_dbus_simple_array_property_getter(iter,
3307                                                          DBUS_TYPE_OBJECT_PATH,
3308                                                          paths, wpa_s->num_bss,
3309                                                          error);
3310
3311 out:
3312         while (i)
3313                 os_free(paths[--i]);
3314         os_free(paths);
3315         return success;
3316 }
3317
3318
3319 /**
3320  * wpas_dbus_getter_networks - Get array of networks objects
3321  * @iter: Pointer to incoming dbus message iter
3322  * @error: Location to store error on failure
3323  * @user_data: Function specific data
3324  * Returns: TRUE on success, FALSE on failure
3325  *
3326  * Getter for "Networks" property.
3327  */
3328 dbus_bool_t wpas_dbus_getter_networks(
3329         const struct wpa_dbus_property_desc *property_desc,
3330         DBusMessageIter *iter, DBusError *error, void *user_data)
3331 {
3332         struct wpa_supplicant *wpa_s = user_data;
3333         struct wpa_ssid *ssid;
3334         char **paths;
3335         unsigned int i = 0, num = 0;
3336         dbus_bool_t success = FALSE;
3337
3338         if (!wpa_s->dbus_new_path) {
3339                 dbus_set_error(error, DBUS_ERROR_FAILED,
3340                                "%s: no D-Bus interface", __func__);
3341                 return FALSE;
3342         }
3343
3344         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
3345                 if (!network_is_persistent_group(ssid))
3346                         num++;
3347
3348         paths = os_calloc(num, sizeof(char *));
3349         if (!paths) {
3350                 dbus_set_error(error, DBUS_ERROR_NO_MEMORY, "no memory");
3351                 return FALSE;
3352         }
3353
3354         /* Loop through configured networks and append object path of each */
3355         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
3356                 if (network_is_persistent_group(ssid))
3357                         continue;
3358                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
3359                 if (paths[i] == NULL) {
3360                         dbus_set_error(error, DBUS_ERROR_NO_MEMORY,
3361                                        "no memory");
3362                         goto out;
3363                 }
3364
3365                 /* Construct the object path for this network. */
3366                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
3367                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
3368                             wpa_s->dbus_new_path, ssid->id);
3369         }
3370
3371         success = wpas_dbus_simple_array_property_getter(iter,
3372                                                          DBUS_TYPE_OBJECT_PATH,
3373                                                          paths, num, error);
3374
3375 out:
3376         while (i)
3377                 os_free(paths[--i]);
3378         os_free(paths);
3379         return success;
3380 }
3381
3382
3383 /**
3384  * wpas_dbus_getter_pkcs11_engine_path - Get PKCS #11 engine path
3385  * @iter: Pointer to incoming dbus message iter
3386  * @error: Location to store error on failure
3387  * @user_data: Function specific data
3388  * Returns: A dbus message containing the PKCS #11 engine path
3389  *
3390  * Getter for "PKCS11EnginePath" property.
3391  */
3392 dbus_bool_t wpas_dbus_getter_pkcs11_engine_path(
3393         const struct wpa_dbus_property_desc *property_desc,
3394         DBusMessageIter *iter, DBusError *error, void *user_data)
3395 {
3396         struct wpa_supplicant *wpa_s = user_data;
3397         const char *pkcs11_engine_path;
3398
3399         if (wpa_s->conf->pkcs11_engine_path == NULL)
3400                 pkcs11_engine_path = "";
3401         else
3402                 pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
3403         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3404                                                 &pkcs11_engine_path, error);
3405 }
3406
3407
3408 /**
3409  * wpas_dbus_getter_pkcs11_module_path - Get PKCS #11 module path
3410  * @iter: Pointer to incoming dbus message iter
3411  * @error: Location to store error on failure
3412  * @user_data: Function specific data
3413  * Returns: A dbus message containing the PKCS #11 module path
3414  *
3415  * Getter for "PKCS11ModulePath" property.
3416  */
3417 dbus_bool_t wpas_dbus_getter_pkcs11_module_path(
3418         const struct wpa_dbus_property_desc *property_desc,
3419         DBusMessageIter *iter, DBusError *error, void *user_data)
3420 {
3421         struct wpa_supplicant *wpa_s = user_data;
3422         const char *pkcs11_module_path;
3423
3424         if (wpa_s->conf->pkcs11_module_path == NULL)
3425                 pkcs11_module_path = "";
3426         else
3427                 pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
3428         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3429                                                 &pkcs11_module_path, error);
3430 }
3431
3432
3433 /**
3434  * wpas_dbus_getter_blobs - Get all blobs defined for this interface
3435  * @iter: Pointer to incoming dbus message iter
3436  * @error: Location to store error on failure
3437  * @user_data: Function specific data
3438  * Returns: TRUE on success, FALSE on failure
3439  *
3440  * Getter for "Blobs" property.
3441  */
3442 dbus_bool_t wpas_dbus_getter_blobs(
3443         const struct wpa_dbus_property_desc *property_desc,
3444         DBusMessageIter *iter, DBusError *error, void *user_data)
3445 {
3446         struct wpa_supplicant *wpa_s = user_data;
3447         DBusMessageIter variant_iter, dict_iter, entry_iter, array_iter;
3448         struct wpa_config_blob *blob;
3449
3450         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3451                                               "a{say}", &variant_iter) ||
3452             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
3453                                               "{say}", &dict_iter)) {
3454                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3455                 return FALSE;
3456         }
3457
3458         blob = wpa_s->conf->blobs;
3459         while (blob) {
3460                 if (!dbus_message_iter_open_container(&dict_iter,
3461                                                       DBUS_TYPE_DICT_ENTRY,
3462                                                       NULL, &entry_iter) ||
3463                     !dbus_message_iter_append_basic(&entry_iter,
3464                                                     DBUS_TYPE_STRING,
3465                                                     &(blob->name)) ||
3466                     !dbus_message_iter_open_container(&entry_iter,
3467                                                       DBUS_TYPE_ARRAY,
3468                                                       DBUS_TYPE_BYTE_AS_STRING,
3469                                                       &array_iter) ||
3470                     !dbus_message_iter_append_fixed_array(&array_iter,
3471                                                           DBUS_TYPE_BYTE,
3472                                                           &(blob->data),
3473                                                           blob->len) ||
3474                     !dbus_message_iter_close_container(&entry_iter,
3475                                                        &array_iter) ||
3476                     !dbus_message_iter_close_container(&dict_iter,
3477                                                        &entry_iter)) {
3478                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
3479                                              "no memory");
3480                         return FALSE;
3481                 }
3482
3483                 blob = blob->next;
3484         }
3485
3486         if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
3487             !dbus_message_iter_close_container(iter, &variant_iter)) {
3488                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3489                 return FALSE;
3490         }
3491
3492         return TRUE;
3493 }
3494
3495
3496 dbus_bool_t wpas_dbus_getter_iface_global(
3497         const struct wpa_dbus_property_desc *property_desc,
3498         DBusMessageIter *iter, DBusError *error, void *user_data)
3499 {
3500         struct wpa_supplicant *wpa_s = user_data;
3501         int ret;
3502         char buf[250];
3503         char *p = buf;
3504
3505         if (!property_desc->data) {
3506                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3507                                "Unhandled interface property %s",
3508                                property_desc->dbus_property);
3509                 return FALSE;
3510         }
3511
3512         ret = wpa_config_get_value(property_desc->data, wpa_s->conf, buf,
3513                                    sizeof(buf));
3514         if (ret < 0)
3515                 *p = '\0';
3516
3517         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING, &p,
3518                                                 error);
3519 }
3520
3521
3522 dbus_bool_t wpas_dbus_setter_iface_global(
3523         const struct wpa_dbus_property_desc *property_desc,
3524         DBusMessageIter *iter, DBusError *error, void *user_data)
3525 {
3526         struct wpa_supplicant *wpa_s = user_data;
3527         const char *new_value = NULL;
3528         char buf[250];
3529         size_t combined_len;
3530         int ret;
3531
3532         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
3533                                               &new_value))
3534                 return FALSE;
3535
3536         combined_len = os_strlen(property_desc->data) + os_strlen(new_value) +
3537                 3;
3538         if (combined_len >= sizeof(buf)) {
3539                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3540                                "Interface property %s value too large",
3541                                property_desc->dbus_property);
3542                 return FALSE;
3543         }
3544
3545         if (!new_value[0])
3546                 new_value = "NULL";
3547
3548         ret = os_snprintf(buf, combined_len, "%s=%s", property_desc->data,
3549                           new_value);
3550         if (os_snprintf_error(combined_len, ret)) {
3551                 dbus_set_error(error,  WPAS_DBUS_ERROR_UNKNOWN_ERROR,
3552                                "Failed to construct new interface property %s",
3553                                property_desc->dbus_property);
3554                 return FALSE;
3555         }
3556
3557         if (wpa_config_process_global(wpa_s->conf, buf, -1)) {
3558                 dbus_set_error(error, DBUS_ERROR_INVALID_ARGS,
3559                                "Failed to set interface property %s",
3560                                property_desc->dbus_property);
3561                 return FALSE;
3562         }
3563
3564         wpa_supplicant_update_config(wpa_s);
3565         return TRUE;
3566 }
3567
3568
3569 static struct wpa_bss * get_bss_helper(struct bss_handler_args *args,
3570                                        DBusError *error, const char *func_name)
3571 {
3572         struct wpa_bss *res = wpa_bss_get_id(args->wpa_s, args->id);
3573
3574         if (!res) {
3575                 wpa_printf(MSG_ERROR, "%s[dbus]: no bss with id %d found",
3576                            func_name, args->id);
3577                 dbus_set_error(error, DBUS_ERROR_FAILED,
3578                                "%s: BSS %d not found",
3579                                func_name, args->id);
3580         }
3581
3582         return res;
3583 }
3584
3585
3586 /**
3587  * wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
3588  * @iter: Pointer to incoming dbus message iter
3589  * @error: Location to store error on failure
3590  * @user_data: Function specific data
3591  * Returns: TRUE on success, FALSE on failure
3592  *
3593  * Getter for "BSSID" property.
3594  */
3595 dbus_bool_t wpas_dbus_getter_bss_bssid(
3596         const struct wpa_dbus_property_desc *property_desc,
3597         DBusMessageIter *iter, DBusError *error, void *user_data)
3598 {
3599         struct bss_handler_args *args = user_data;
3600         struct wpa_bss *res;
3601
3602         res = get_bss_helper(args, error, __func__);
3603         if (!res)
3604                 return FALSE;
3605
3606         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3607                                                       res->bssid, ETH_ALEN,
3608                                                       error);
3609 }
3610
3611
3612 /**
3613  * wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
3614  * @iter: Pointer to incoming dbus message iter
3615  * @error: Location to store error on failure
3616  * @user_data: Function specific data
3617  * Returns: TRUE on success, FALSE on failure
3618  *
3619  * Getter for "SSID" property.
3620  */
3621 dbus_bool_t wpas_dbus_getter_bss_ssid(
3622         const struct wpa_dbus_property_desc *property_desc,
3623         DBusMessageIter *iter, DBusError *error, void *user_data)
3624 {
3625         struct bss_handler_args *args = user_data;
3626         struct wpa_bss *res;
3627
3628         res = get_bss_helper(args, error, __func__);
3629         if (!res)
3630                 return FALSE;
3631
3632         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3633                                                       res->ssid, res->ssid_len,
3634                                                       error);
3635 }
3636
3637
3638 /**
3639  * wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
3640  * @iter: Pointer to incoming dbus message iter
3641  * @error: Location to store error on failure
3642  * @user_data: Function specific data
3643  * Returns: TRUE on success, FALSE on failure
3644  *
3645  * Getter for "Privacy" property.
3646  */
3647 dbus_bool_t wpas_dbus_getter_bss_privacy(
3648         const struct wpa_dbus_property_desc *property_desc,
3649         DBusMessageIter *iter, DBusError *error, void *user_data)
3650 {
3651         struct bss_handler_args *args = user_data;
3652         struct wpa_bss *res;
3653         dbus_bool_t privacy;
3654
3655         res = get_bss_helper(args, error, __func__);
3656         if (!res)
3657                 return FALSE;
3658
3659         privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
3660         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
3661                                                 &privacy, error);
3662 }
3663
3664
3665 /**
3666  * wpas_dbus_getter_bss_mode - Return the mode of a BSS
3667  * @iter: Pointer to incoming dbus message iter
3668  * @error: Location to store error on failure
3669  * @user_data: Function specific data
3670  * Returns: TRUE on success, FALSE on failure
3671  *
3672  * Getter for "Mode" property.
3673  */
3674 dbus_bool_t wpas_dbus_getter_bss_mode(
3675         const struct wpa_dbus_property_desc *property_desc,
3676         DBusMessageIter *iter, DBusError *error, void *user_data)
3677 {
3678         struct bss_handler_args *args = user_data;
3679         struct wpa_bss *res;
3680         const char *mode;
3681
3682         res = get_bss_helper(args, error, __func__);
3683         if (!res)
3684                 return FALSE;
3685         if (bss_is_dmg(res)) {
3686                 switch (res->caps & IEEE80211_CAP_DMG_MASK) {
3687                 case IEEE80211_CAP_DMG_PBSS:
3688                 case IEEE80211_CAP_DMG_IBSS:
3689                         mode = "ad-hoc";
3690                         break;
3691                 case IEEE80211_CAP_DMG_AP:
3692                         mode = "infrastructure";
3693                         break;
3694                 }
3695         } else {
3696                 if (res->caps & IEEE80211_CAP_IBSS)
3697                         mode = "ad-hoc";
3698                 else
3699                         mode = "infrastructure";
3700         }
3701
3702         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3703                                                 &mode, error);
3704 }
3705
3706
3707 /**
3708  * wpas_dbus_getter_bss_level - Return the signal strength of a BSS
3709  * @iter: Pointer to incoming dbus message iter
3710  * @error: Location to store error on failure
3711  * @user_data: Function specific data
3712  * Returns: TRUE on success, FALSE on failure
3713  *
3714  * Getter for "Level" property.
3715  */
3716 dbus_bool_t wpas_dbus_getter_bss_signal(
3717         const struct wpa_dbus_property_desc *property_desc,
3718         DBusMessageIter *iter, DBusError *error, void *user_data)
3719 {
3720         struct bss_handler_args *args = user_data;
3721         struct wpa_bss *res;
3722         s16 level;
3723
3724         res = get_bss_helper(args, error, __func__);
3725         if (!res)
3726                 return FALSE;
3727
3728         level = (s16) res->level;
3729         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT16,
3730                                                 &level, error);
3731 }
3732
3733
3734 /**
3735  * wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
3736  * @iter: Pointer to incoming dbus message iter
3737  * @error: Location to store error on failure
3738  * @user_data: Function specific data
3739  * Returns: TRUE on success, FALSE on failure
3740  *
3741  * Getter for "Frequency" property.
3742  */
3743 dbus_bool_t wpas_dbus_getter_bss_frequency(
3744         const struct wpa_dbus_property_desc *property_desc,
3745         DBusMessageIter *iter, DBusError *error, void *user_data)
3746 {
3747         struct bss_handler_args *args = user_data;
3748         struct wpa_bss *res;
3749         u16 freq;
3750
3751         res = get_bss_helper(args, error, __func__);
3752         if (!res)
3753                 return FALSE;
3754
3755         freq = (u16) res->freq;
3756         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT16,
3757                                                 &freq, error);
3758 }
3759
3760
3761 static int cmp_u8s_desc(const void *a, const void *b)
3762 {
3763         return (*(u8 *) b - *(u8 *) a);
3764 }
3765
3766
3767 /**
3768  * wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
3769  * @iter: Pointer to incoming dbus message iter
3770  * @error: Location to store error on failure
3771  * @user_data: Function specific data
3772  * Returns: TRUE on success, FALSE on failure
3773  *
3774  * Getter for "Rates" property.
3775  */
3776 dbus_bool_t wpas_dbus_getter_bss_rates(
3777         const struct wpa_dbus_property_desc *property_desc,
3778         DBusMessageIter *iter, DBusError *error, void *user_data)
3779 {
3780         struct bss_handler_args *args = user_data;
3781         struct wpa_bss *res;
3782         u8 *ie_rates = NULL;
3783         u32 *real_rates;
3784         int rates_num, i;
3785         dbus_bool_t success = FALSE;
3786
3787         res = get_bss_helper(args, error, __func__);
3788         if (!res)
3789                 return FALSE;
3790
3791         rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
3792         if (rates_num < 0)
3793                 return FALSE;
3794
3795         qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
3796
3797         real_rates = os_malloc(sizeof(u32) * rates_num);
3798         if (!real_rates) {
3799                 os_free(ie_rates);
3800                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3801                 return FALSE;
3802         }
3803
3804         for (i = 0; i < rates_num; i++)
3805                 real_rates[i] = ie_rates[i] * 500000;
3806
3807         success = wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_UINT32,
3808                                                          real_rates, rates_num,
3809                                                          error);
3810
3811         os_free(ie_rates);
3812         os_free(real_rates);
3813         return success;
3814 }
3815
3816
3817 static dbus_bool_t wpas_dbus_get_bss_security_prop(
3818         const struct wpa_dbus_property_desc *property_desc,
3819         DBusMessageIter *iter, struct wpa_ie_data *ie_data, DBusError *error)
3820 {
3821         DBusMessageIter iter_dict, variant_iter;
3822         const char *group;
3823         const char *pairwise[5]; /* max 5 pairwise ciphers is supported */
3824         const char *key_mgmt[9]; /* max 9 key managements may be supported */
3825         int n;
3826
3827         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3828                                               "a{sv}", &variant_iter))
3829                 goto nomem;
3830
3831         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
3832                 goto nomem;
3833
3834         /* KeyMgmt */
3835         n = 0;
3836         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
3837                 key_mgmt[n++] = "wpa-psk";
3838         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
3839                 key_mgmt[n++] = "wpa-ft-psk";
3840         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
3841                 key_mgmt[n++] = "wpa-psk-sha256";
3842         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
3843                 key_mgmt[n++] = "wpa-eap";
3844         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
3845                 key_mgmt[n++] = "wpa-ft-eap";
3846         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
3847                 key_mgmt[n++] = "wpa-eap-sha256";
3848 #ifdef CONFIG_SUITEB
3849         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B)
3850                 key_mgmt[n++] = "wpa-eap-suite-b";
3851 #endif /* CONFIG_SUITEB */
3852 #ifdef CONFIG_SUITEB192
3853         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
3854                 key_mgmt[n++] = "wpa-eap-suite-b-192";
3855 #endif /* CONFIG_SUITEB192 */
3856         if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
3857                 key_mgmt[n++] = "wpa-none";
3858
3859         if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
3860                                                key_mgmt, n))
3861                 goto nomem;
3862
3863         /* Group */
3864         switch (ie_data->group_cipher) {
3865         case WPA_CIPHER_WEP40:
3866                 group = "wep40";
3867                 break;
3868         case WPA_CIPHER_TKIP:
3869                 group = "tkip";
3870                 break;
3871         case WPA_CIPHER_CCMP:
3872                 group = "ccmp";
3873                 break;
3874         case WPA_CIPHER_GCMP:
3875                 group = "gcmp";
3876                 break;
3877         case WPA_CIPHER_WEP104:
3878                 group = "wep104";
3879                 break;
3880         case WPA_CIPHER_CCMP_256:
3881                 group = "ccmp-256";
3882                 break;
3883         case WPA_CIPHER_GCMP_256:
3884                 group = "gcmp-256";
3885                 break;
3886         default:
3887                 group = "";
3888                 break;
3889         }
3890
3891         if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
3892                 goto nomem;
3893
3894         /* Pairwise */
3895         n = 0;
3896         if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
3897                 pairwise[n++] = "tkip";
3898         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
3899                 pairwise[n++] = "ccmp";
3900         if (ie_data->pairwise_cipher & WPA_CIPHER_GCMP)
3901                 pairwise[n++] = "gcmp";
3902         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP_256)
3903                 pairwise[n++] = "ccmp-256";
3904         if (ie_data->pairwise_cipher & WPA_CIPHER_GCMP_256)
3905                 pairwise[n++] = "gcmp-256";
3906
3907         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
3908                                                pairwise, n))
3909                 goto nomem;
3910
3911         /* Management group (RSN only) */
3912         if (ie_data->proto == WPA_PROTO_RSN) {
3913                 switch (ie_data->mgmt_group_cipher) {
3914 #ifdef CONFIG_IEEE80211W
3915                 case WPA_CIPHER_AES_128_CMAC:
3916                         group = "aes128cmac";
3917                         break;
3918 #endif /* CONFIG_IEEE80211W */
3919                 default:
3920                         group = "";
3921                         break;
3922                 }
3923
3924                 if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
3925                                                  group))
3926                         goto nomem;
3927         }
3928
3929         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
3930             !dbus_message_iter_close_container(iter, &variant_iter))
3931                 goto nomem;
3932
3933         return TRUE;
3934
3935 nomem:
3936         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3937         return FALSE;
3938 }
3939
3940
3941 /**
3942  * wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
3943  * @iter: Pointer to incoming dbus message iter
3944  * @error: Location to store error on failure
3945  * @user_data: Function specific data
3946  * Returns: TRUE on success, FALSE on failure
3947  *
3948  * Getter for "WPA" property.
3949  */
3950 dbus_bool_t wpas_dbus_getter_bss_wpa(
3951         const struct wpa_dbus_property_desc *property_desc,
3952         DBusMessageIter *iter, DBusError *error, void *user_data)
3953 {
3954         struct bss_handler_args *args = user_data;
3955         struct wpa_bss *res;
3956         struct wpa_ie_data wpa_data;
3957         const u8 *ie;
3958
3959         res = get_bss_helper(args, error, __func__);
3960         if (!res)
3961                 return FALSE;
3962
3963         os_memset(&wpa_data, 0, sizeof(wpa_data));
3964         ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
3965         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
3966                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
3967                                      "failed to parse WPA IE");
3968                 return FALSE;
3969         }
3970
3971         return wpas_dbus_get_bss_security_prop(property_desc, iter, &wpa_data, error);
3972 }
3973
3974
3975 /**
3976  * wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
3977  * @iter: Pointer to incoming dbus message iter
3978  * @error: Location to store error on failure
3979  * @user_data: Function specific data
3980  * Returns: TRUE on success, FALSE on failure
3981  *
3982  * Getter for "RSN" property.
3983  */
3984 dbus_bool_t wpas_dbus_getter_bss_rsn(
3985         const struct wpa_dbus_property_desc *property_desc,
3986         DBusMessageIter *iter, DBusError *error, void *user_data)
3987 {
3988         struct bss_handler_args *args = user_data;
3989         struct wpa_bss *res;
3990         struct wpa_ie_data wpa_data;
3991         const u8 *ie;
3992
3993         res = get_bss_helper(args, error, __func__);
3994         if (!res)
3995                 return FALSE;
3996
3997         os_memset(&wpa_data, 0, sizeof(wpa_data));
3998         ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
3999         if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
4000                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
4001                                      "failed to parse RSN IE");
4002                 return FALSE;
4003         }
4004
4005         return wpas_dbus_get_bss_security_prop(property_desc, iter, &wpa_data, error);
4006 }
4007
4008
4009 /**
4010  * wpas_dbus_getter_bss_wps - Return the WPS options of a BSS
4011  * @iter: Pointer to incoming dbus message iter
4012  * @error: Location to store error on failure
4013  * @user_data: Function specific data
4014  * Returns: TRUE on success, FALSE on failure
4015  *
4016  * Getter for "WPS" property.
4017  */
4018 dbus_bool_t wpas_dbus_getter_bss_wps(
4019         const struct wpa_dbus_property_desc *property_desc,
4020         DBusMessageIter *iter, DBusError *error, void *user_data)
4021 {
4022         struct bss_handler_args *args = user_data;
4023         struct wpa_bss *res;
4024 #ifdef CONFIG_WPS
4025         struct wpabuf *wps_ie;
4026 #endif /* CONFIG_WPS */
4027         DBusMessageIter iter_dict, variant_iter;
4028         int wps_support = 0;
4029         const char *type = "";
4030
4031         res = get_bss_helper(args, error, __func__);
4032         if (!res)
4033                 return FALSE;
4034
4035         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
4036                                               "a{sv}", &variant_iter) ||
4037             !wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
4038                 goto nomem;
4039
4040 #ifdef CONFIG_WPS
4041         wps_ie = wpa_bss_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
4042         if (wps_ie) {
4043                 wps_support = 1;
4044                 if (wps_is_selected_pbc_registrar(wps_ie))
4045                         type = "pbc";
4046                 else if (wps_is_selected_pin_registrar(wps_ie))
4047                         type = "pin";
4048
4049                 wpabuf_free(wps_ie);
4050         }
4051 #endif /* CONFIG_WPS */
4052
4053         if ((wps_support && !wpa_dbus_dict_append_string(&iter_dict, "Type", type)) ||
4054             !wpa_dbus_dict_close_write(&variant_iter, &iter_dict) ||
4055             !dbus_message_iter_close_container(iter, &variant_iter))
4056                 goto nomem;
4057
4058         return TRUE;
4059
4060 nomem:
4061         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4062         return FALSE;
4063 }
4064
4065
4066 /**
4067  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
4068  * @iter: Pointer to incoming dbus message iter
4069  * @error: Location to store error on failure
4070  * @user_data: Function specific data
4071  * Returns: TRUE on success, FALSE on failure
4072  *
4073  * Getter for "IEs" property.
4074  */
4075 dbus_bool_t wpas_dbus_getter_bss_ies(
4076         const struct wpa_dbus_property_desc *property_desc,
4077         DBusMessageIter *iter, DBusError *error, void *user_data)
4078 {
4079         struct bss_handler_args *args = user_data;
4080         struct wpa_bss *res;
4081
4082         res = get_bss_helper(args, error, __func__);
4083         if (!res)
4084                 return FALSE;
4085
4086         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
4087                                                       res + 1, res->ie_len,
4088                                                       error);
4089 }
4090
4091
4092 /**
4093  * wpas_dbus_getter_bss_age - Return time in seconds since BSS was last seen
4094  * @iter: Pointer to incoming dbus message iter
4095  * @error: Location to store error on failure
4096  * @user_data: Function specific data
4097  * Returns: TRUE on success, FALSE on failure
4098  *
4099  * Getter for BSS age
4100  */
4101 dbus_bool_t wpas_dbus_getter_bss_age(
4102         const struct wpa_dbus_property_desc *property_desc,
4103         DBusMessageIter *iter, DBusError *error, void *user_data)
4104 {
4105         struct bss_handler_args *args = user_data;
4106         struct wpa_bss *res;
4107         struct os_reltime now, diff = { 0, 0 };
4108         u32 age;
4109
4110         res = get_bss_helper(args, error, __func__);
4111         if (!res)
4112                 return FALSE;
4113
4114         os_get_reltime(&now);
4115         os_reltime_sub(&now, &res->last_update, &diff);
4116         age = diff.sec > 0 ? diff.sec : 0;
4117         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32, &age,
4118                                                 error);
4119 }
4120
4121
4122 /**
4123  * wpas_dbus_getter_enabled - Check whether network is enabled or disabled
4124  * @iter: Pointer to incoming dbus message iter
4125  * @error: Location to store error on failure
4126  * @user_data: Function specific data
4127  * Returns: TRUE on success, FALSE on failure
4128  *
4129  * Getter for "enabled" property of a configured network.
4130  */
4131 dbus_bool_t wpas_dbus_getter_enabled(
4132         const struct wpa_dbus_property_desc *property_desc,
4133         DBusMessageIter *iter, DBusError *error, void *user_data)
4134 {
4135         struct network_handler_args *net = user_data;
4136         dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
4137
4138         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
4139                                                 &enabled, error);
4140 }
4141
4142
4143 /**
4144  * wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
4145  * @iter: Pointer to incoming dbus message iter
4146  * @error: Location to store error on failure
4147  * @user_data: Function specific data
4148  * Returns: TRUE on success, FALSE on failure
4149  *
4150  * Setter for "Enabled" property of a configured network.
4151  */
4152 dbus_bool_t wpas_dbus_setter_enabled(
4153         const struct wpa_dbus_property_desc *property_desc,
4154         DBusMessageIter *iter, DBusError *error, void *user_data)
4155 {
4156         struct network_handler_args *net = user_data;
4157         struct wpa_supplicant *wpa_s;
4158         struct wpa_ssid *ssid;
4159         dbus_bool_t enable;
4160
4161         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
4162                                               &enable))
4163                 return FALSE;
4164
4165         wpa_s = net->wpa_s;
4166         ssid = net->ssid;
4167
4168         if (enable)
4169                 wpa_supplicant_enable_network(wpa_s, ssid);
4170         else
4171                 wpa_supplicant_disable_network(wpa_s, ssid);
4172
4173         return TRUE;
4174 }
4175
4176
4177 /**
4178  * wpas_dbus_getter_network_properties - Get options for a configured network
4179  * @iter: Pointer to incoming dbus message iter
4180  * @error: Location to store error on failure
4181  * @user_data: Function specific data
4182  * Returns: TRUE on success, FALSE on failure
4183  *
4184  * Getter for "Properties" property of a configured network.
4185  */
4186 dbus_bool_t wpas_dbus_getter_network_properties(
4187         const struct wpa_dbus_property_desc *property_desc,
4188         DBusMessageIter *iter, DBusError *error, void *user_data)
4189 {
4190         struct network_handler_args *net = user_data;
4191         DBusMessageIter variant_iter, dict_iter;
4192         char **iterator;
4193         char **props = wpa_config_get_all(net->ssid, 1);
4194         dbus_bool_t success = FALSE;
4195
4196         if (!props) {
4197                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4198                 return FALSE;
4199         }
4200
4201         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "a{sv}",
4202                                               &variant_iter) ||
4203             !wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
4204                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4205                 goto out;
4206         }
4207
4208         iterator = props;
4209         while (*iterator) {
4210                 if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
4211                                                  *(iterator + 1))) {
4212                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
4213                                              "no memory");
4214                         goto out;
4215                 }
4216                 iterator += 2;
4217         }
4218
4219
4220         if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
4221             !dbus_message_iter_close_container(iter, &variant_iter)) {
4222                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
4223                 goto out;
4224         }
4225
4226         success = TRUE;
4227
4228 out:
4229         iterator = props;
4230         while (*iterator) {
4231                 os_free(*iterator);
4232                 iterator++;
4233         }
4234         os_free(props);
4235         return success;
4236 }
4237
4238
4239 /**
4240  * wpas_dbus_setter_network_properties - Set options for a configured network
4241  * @iter: Pointer to incoming dbus message iter
4242  * @error: Location to store error on failure
4243  * @user_data: Function specific data
4244  * Returns: TRUE on success, FALSE on failure
4245  *
4246  * Setter for "Properties" property of a configured network.
4247  */
4248 dbus_bool_t wpas_dbus_setter_network_properties(
4249         const struct wpa_dbus_property_desc *property_desc,
4250         DBusMessageIter *iter, DBusError *error, void *user_data)
4251 {
4252         struct network_handler_args *net = user_data;
4253         struct wpa_ssid *ssid = net->ssid;
4254         DBusMessageIter variant_iter;
4255
4256         dbus_message_iter_recurse(iter, &variant_iter);
4257         return set_network_properties(net->wpa_s, ssid, &variant_iter, error);
4258 }
4259
4260
4261 #ifdef CONFIG_AP
4262
4263 DBusMessage * wpas_dbus_handler_subscribe_preq(
4264         DBusMessage *message, struct wpa_supplicant *wpa_s)
4265 {
4266         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4267         char *name;
4268
4269         if (wpa_s->preq_notify_peer != NULL) {
4270                 if (os_strcmp(dbus_message_get_sender(message),
4271                               wpa_s->preq_notify_peer) == 0)
4272                         return NULL;
4273
4274                 return dbus_message_new_error(message,
4275                         WPAS_DBUS_ERROR_SUBSCRIPTION_IN_USE,
4276                         "Another application is already subscribed");
4277         }
4278
4279         name = os_strdup(dbus_message_get_sender(message));
4280         if (!name)
4281                 return wpas_dbus_error_no_memory(message);
4282
4283         wpa_s->preq_notify_peer = name;
4284
4285         /* Subscribe to clean up if application closes socket */
4286         wpas_dbus_subscribe_noc(priv);
4287
4288         /*
4289          * Double-check it's still alive to make sure that we didn't
4290          * miss the NameOwnerChanged signal, e.g. while strdup'ing.
4291          */
4292         if (!dbus_bus_name_has_owner(priv->con, name, NULL)) {
4293                 /*
4294                  * Application no longer exists, clean up.
4295                  * The return value is irrelevant now.
4296                  *
4297                  * Need to check if the NameOwnerChanged handling
4298                  * already cleaned up because we have processed
4299                  * DBus messages while checking if the name still
4300                  * has an owner.
4301                  */
4302                 if (!wpa_s->preq_notify_peer)
4303                         return NULL;
4304                 os_free(wpa_s->preq_notify_peer);
4305                 wpa_s->preq_notify_peer = NULL;
4306                 wpas_dbus_unsubscribe_noc(priv);
4307         }
4308
4309         return NULL;
4310 }
4311
4312
4313 DBusMessage * wpas_dbus_handler_unsubscribe_preq(
4314         DBusMessage *message, struct wpa_supplicant *wpa_s)
4315 {
4316         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4317
4318         if (!wpa_s->preq_notify_peer)
4319                 return dbus_message_new_error(message,
4320                         WPAS_DBUS_ERROR_NO_SUBSCRIPTION,
4321                         "Not subscribed");
4322
4323         if (os_strcmp(wpa_s->preq_notify_peer,
4324                       dbus_message_get_sender(message)))
4325                 return dbus_message_new_error(message,
4326                         WPAS_DBUS_ERROR_SUBSCRIPTION_EPERM,
4327                         "Can't unsubscribe others");
4328
4329         os_free(wpa_s->preq_notify_peer);
4330         wpa_s->preq_notify_peer = NULL;
4331         wpas_dbus_unsubscribe_noc(priv);
4332         return NULL;
4333 }
4334
4335
4336 void wpas_dbus_signal_preq(struct wpa_supplicant *wpa_s,
4337                            const u8 *addr, const u8 *dst, const u8 *bssid,
4338                            const u8 *ie, size_t ie_len, u32 ssi_signal)
4339 {
4340         DBusMessage *msg;
4341         DBusMessageIter iter, dict_iter;
4342         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
4343
4344         /* Do nothing if the control interface is not turned on */
4345         if (priv == NULL || !wpa_s->dbus_new_path)
4346                 return;
4347
4348         if (wpa_s->preq_notify_peer == NULL)
4349                 return;
4350
4351         msg = dbus_message_new_signal(wpa_s->dbus_new_path,
4352                                       WPAS_DBUS_NEW_IFACE_INTERFACE,
4353                                       "ProbeRequest");
4354         if (msg == NULL)
4355                 return;
4356
4357         dbus_message_set_destination(msg, wpa_s->preq_notify_peer);
4358
4359         dbus_message_iter_init_append(msg, &iter);
4360
4361         if (!wpa_dbus_dict_open_write(&iter, &dict_iter) ||
4362             (addr && !wpa_dbus_dict_append_byte_array(&dict_iter, "addr",
4363                                                       (const char *) addr,
4364                                                       ETH_ALEN)) ||
4365             (dst && !wpa_dbus_dict_append_byte_array(&dict_iter, "dst",
4366                                                      (const char *) dst,
4367                                                      ETH_ALEN)) ||
4368             (bssid && !wpa_dbus_dict_append_byte_array(&dict_iter, "bssid",
4369                                                        (const char *) bssid,
4370                                                        ETH_ALEN)) ||
4371             (ie && ie_len && !wpa_dbus_dict_append_byte_array(&dict_iter, "ies",
4372                                                               (const char *) ie,
4373                                                               ie_len)) ||
4374             (ssi_signal && !wpa_dbus_dict_append_int32(&dict_iter, "signal",
4375                                                        ssi_signal)) ||
4376             !wpa_dbus_dict_close_write(&iter, &dict_iter))
4377                 goto fail;
4378
4379         dbus_connection_send(priv->con, msg, NULL);
4380         goto out;
4381 fail:
4382         wpa_printf(MSG_ERROR, "dbus: Failed to construct signal");
4383 out:
4384         dbus_message_unref(msg);
4385 }
4386
4387 #endif /* CONFIG_AP */
4388
4389
4390 DBusMessage * wpas_dbus_handler_vendor_elem_add(DBusMessage *message,
4391                                                 struct wpa_supplicant *wpa_s)
4392 {
4393         u8 *ielems;
4394         int len;
4395         struct ieee802_11_elems elems;
4396         dbus_int32_t frame_id;
4397         DBusMessageIter iter, array;
4398
4399         dbus_message_iter_init(message, &iter);
4400         dbus_message_iter_get_basic(&iter, &frame_id);
4401         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4402                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4403                                               "Invalid ID");
4404         }
4405
4406         dbus_message_iter_next(&iter);
4407         dbus_message_iter_recurse(&iter, &array);
4408         dbus_message_iter_get_fixed_array(&array, &ielems, &len);
4409         if (!ielems || len == 0) {
4410                 return dbus_message_new_error(
4411                         message, DBUS_ERROR_INVALID_ARGS, "Invalid value");
4412         }
4413
4414         if (ieee802_11_parse_elems(ielems, len, &elems, 0) == ParseFailed) {
4415                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4416                                               "Parse error");
4417         }
4418
4419         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4420         if (!wpa_s->vendor_elem[frame_id]) {
4421                 wpa_s->vendor_elem[frame_id] = wpabuf_alloc_copy(ielems, len);
4422                 wpas_vendor_elem_update(wpa_s);
4423                 return NULL;
4424         }
4425
4426         if (wpabuf_resize(&wpa_s->vendor_elem[frame_id], len) < 0) {
4427                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4428                                               "Resize error");
4429         }
4430
4431         wpabuf_put_data(wpa_s->vendor_elem[frame_id], ielems, len);
4432         wpas_vendor_elem_update(wpa_s);
4433         return NULL;
4434 }
4435
4436
4437 DBusMessage * wpas_dbus_handler_vendor_elem_get(DBusMessage *message,
4438                                                 struct wpa_supplicant *wpa_s)
4439 {
4440         DBusMessage *reply;
4441         DBusMessageIter iter, array_iter;
4442         dbus_int32_t frame_id;
4443         const u8 *elem;
4444         size_t elem_len;
4445
4446         dbus_message_iter_init(message, &iter);
4447         dbus_message_iter_get_basic(&iter, &frame_id);
4448
4449         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4450                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4451                                               "Invalid ID");
4452         }
4453
4454         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4455         if (!wpa_s->vendor_elem[frame_id]) {
4456                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4457                                               "ID value does not exist");
4458         }
4459
4460         reply = dbus_message_new_method_return(message);
4461         if (!reply)
4462                 return wpas_dbus_error_no_memory(message);
4463
4464         dbus_message_iter_init_append(reply, &iter);
4465
4466         elem = wpabuf_head_u8(wpa_s->vendor_elem[frame_id]);
4467         elem_len = wpabuf_len(wpa_s->vendor_elem[frame_id]);
4468
4469         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
4470                                               DBUS_TYPE_BYTE_AS_STRING,
4471                                               &array_iter) ||
4472             !dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
4473                                                   &elem, elem_len) ||
4474             !dbus_message_iter_close_container(&iter, &array_iter)) {
4475                 dbus_message_unref(reply);
4476                 reply = wpas_dbus_error_no_memory(message);
4477         }
4478
4479         return reply;
4480 }
4481
4482
4483 DBusMessage * wpas_dbus_handler_vendor_elem_remove(DBusMessage *message,
4484                                                    struct wpa_supplicant *wpa_s)
4485 {
4486         u8 *ielems;
4487         int len;
4488         struct ieee802_11_elems elems;
4489         DBusMessageIter iter, array;
4490         dbus_int32_t frame_id;
4491
4492         dbus_message_iter_init(message, &iter);
4493         dbus_message_iter_get_basic(&iter, &frame_id);
4494         if (frame_id < 0 || frame_id >= NUM_VENDOR_ELEM_FRAMES) {
4495                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4496                                               "Invalid ID");
4497         }
4498
4499         dbus_message_iter_next(&iter);
4500         dbus_message_iter_recurse(&iter, &array);
4501         dbus_message_iter_get_fixed_array(&array, &ielems, &len);
4502         if (!ielems || len == 0) {
4503                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4504                                               "Invalid value");
4505         }
4506
4507         wpa_s = wpas_vendor_elem(wpa_s, frame_id);
4508
4509         if (len == 1 && *ielems == '*') {
4510                 wpabuf_free(wpa_s->vendor_elem[frame_id]);
4511                 wpa_s->vendor_elem[frame_id] = NULL;
4512                 wpas_vendor_elem_update(wpa_s);
4513                 return NULL;
4514         }
4515
4516         if (!wpa_s->vendor_elem[frame_id]) {
4517                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4518                                               "ID value does not exist");
4519         }
4520
4521         if (ieee802_11_parse_elems(ielems, len, &elems, 0) == ParseFailed) {
4522                 return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4523                                               "Parse error");
4524         }
4525
4526         if (wpas_vendor_elem_remove(wpa_s, frame_id, ielems, len) == 0)
4527                 return NULL;
4528
4529         return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
4530                                       "Not found");
4531 }