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