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