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", 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 = 2;
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                 wpa_s->normal_scans = 0;
1459                 wpa_supplicant_reinit_autoscan(wpa_s);
1460                 wpa_s->disconnected = 0;
1461                 wpa_s->reassociate = 1;
1462                 wpa_supplicant_req_scan(wpa_s, 0, 0);
1463
1464                 return NULL;
1465         }
1466
1467         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1468                                       "This interface is not connected");
1469 }
1470
1471
1472 /**
1473  * wpas_dbus_handler_remove_network - Remove a configured network
1474  * @message: Pointer to incoming dbus message
1475  * @wpa_s: wpa_supplicant structure for a network interface
1476  * Returns: NULL on success or dbus error on failure
1477  *
1478  * Handler function for "RemoveNetwork" method call of a network interface.
1479  */
1480 DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
1481                                                struct wpa_supplicant *wpa_s)
1482 {
1483         DBusMessage *reply = NULL;
1484         const char *op;
1485         char *iface = NULL, *net_id = NULL;
1486         int id;
1487         struct wpa_ssid *ssid;
1488
1489         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1490                               DBUS_TYPE_INVALID);
1491
1492         /* Extract the network ID and ensure the network */
1493         /* is actually a child of this interface */
1494         iface = wpas_dbus_new_decompose_object_path(op, 0, &net_id, NULL);
1495         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1496                 reply = wpas_dbus_error_invalid_args(message, op);
1497                 goto out;
1498         }
1499
1500         id = strtoul(net_id, NULL, 10);
1501         if (errno == EINVAL) {
1502                 reply = wpas_dbus_error_invalid_args(message, op);
1503                 goto out;
1504         }
1505
1506         ssid = wpa_config_get_network(wpa_s->conf, id);
1507         if (ssid == NULL) {
1508                 reply = wpas_dbus_error_network_unknown(message);
1509                 goto out;
1510         }
1511
1512         wpas_notify_network_removed(wpa_s, ssid);
1513
1514         if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
1515                 wpa_printf(MSG_ERROR,
1516                            "wpas_dbus_handler_remove_network[dbus]: "
1517                            "error occurred when removing network %d", id);
1518                 reply = wpas_dbus_error_unknown_error(
1519                         message, "error removing the specified network on "
1520                         "this interface.");
1521                 goto out;
1522         }
1523
1524         if (ssid == wpa_s->current_ssid)
1525                 wpa_supplicant_deauthenticate(wpa_s,
1526                                               WLAN_REASON_DEAUTH_LEAVING);
1527
1528 out:
1529         os_free(iface);
1530         os_free(net_id);
1531         return reply;
1532 }
1533
1534
1535 static void remove_network(void *arg, struct wpa_ssid *ssid)
1536 {
1537         struct wpa_supplicant *wpa_s = arg;
1538
1539         wpas_notify_network_removed(wpa_s, ssid);
1540
1541         if (wpa_config_remove_network(wpa_s->conf, ssid->id) < 0) {
1542                 wpa_printf(MSG_ERROR,
1543                            "wpas_dbus_handler_remove_all_networks[dbus]: "
1544                            "error occurred when removing network %d",
1545                            ssid->id);
1546                 return;
1547         }
1548
1549         if (ssid == wpa_s->current_ssid)
1550                 wpa_supplicant_deauthenticate(wpa_s,
1551                                               WLAN_REASON_DEAUTH_LEAVING);
1552 }
1553
1554
1555 /**
1556  * wpas_dbus_handler_remove_all_networks - Remove all configured networks
1557  * @message: Pointer to incoming dbus message
1558  * @wpa_s: wpa_supplicant structure for a network interface
1559  * Returns: NULL on success or dbus error on failure
1560  *
1561  * Handler function for "RemoveAllNetworks" method call of a network interface.
1562  */
1563 DBusMessage * wpas_dbus_handler_remove_all_networks(
1564         DBusMessage *message, struct wpa_supplicant *wpa_s)
1565 {
1566         /* NB: could check for failure and return an error */
1567         wpa_config_foreach_network(wpa_s->conf, remove_network, wpa_s);
1568         return NULL;
1569 }
1570
1571
1572 /**
1573  * wpas_dbus_handler_select_network - Attempt association with a network
1574  * @message: Pointer to incoming dbus message
1575  * @wpa_s: wpa_supplicant structure for a network interface
1576  * Returns: NULL on success or dbus error on failure
1577  *
1578  * Handler function for "SelectNetwork" method call of network interface.
1579  */
1580 DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
1581                                                struct wpa_supplicant *wpa_s)
1582 {
1583         DBusMessage *reply = NULL;
1584         const char *op;
1585         char *iface = NULL, *net_id = NULL;
1586         int id;
1587         struct wpa_ssid *ssid;
1588
1589         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1590                               DBUS_TYPE_INVALID);
1591
1592         /* Extract the network ID and ensure the network */
1593         /* is actually a child of this interface */
1594         iface = wpas_dbus_new_decompose_object_path(op, 0, &net_id, NULL);
1595         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1596                 reply = wpas_dbus_error_invalid_args(message, op);
1597                 goto out;
1598         }
1599
1600         id = strtoul(net_id, NULL, 10);
1601         if (errno == EINVAL) {
1602                 reply = wpas_dbus_error_invalid_args(message, op);
1603                 goto out;
1604         }
1605
1606         ssid = wpa_config_get_network(wpa_s->conf, id);
1607         if (ssid == NULL) {
1608                 reply = wpas_dbus_error_network_unknown(message);
1609                 goto out;
1610         }
1611
1612         /* Finally, associate with the network */
1613         wpa_supplicant_select_network(wpa_s, ssid);
1614
1615 out:
1616         os_free(iface);
1617         os_free(net_id);
1618         return reply;
1619 }
1620
1621
1622 /**
1623  * wpas_dbus_handler_network_reply - Reply to a NetworkRequest signal
1624  * @message: Pointer to incoming dbus message
1625  * @wpa_s: wpa_supplicant structure for a network interface
1626  * Returns: NULL on success or dbus error on failure
1627  *
1628  * Handler function for "NetworkReply" method call of network interface.
1629  */
1630 DBusMessage * wpas_dbus_handler_network_reply(DBusMessage *message,
1631                                               struct wpa_supplicant *wpa_s)
1632 {
1633 #ifdef IEEE8021X_EAPOL
1634         DBusMessage *reply = NULL;
1635         const char *op, *field, *value;
1636         char *iface = NULL, *net_id = NULL;
1637         int id;
1638         struct wpa_ssid *ssid;
1639
1640         if (!dbus_message_get_args(message, NULL,
1641                                    DBUS_TYPE_OBJECT_PATH, &op,
1642                                    DBUS_TYPE_STRING, &field,
1643                                    DBUS_TYPE_STRING, &value,
1644                                    DBUS_TYPE_INVALID))
1645                 return wpas_dbus_error_invalid_args(message, NULL);
1646
1647         /* Extract the network ID and ensure the network */
1648         /* is actually a child of this interface */
1649         iface = wpas_dbus_new_decompose_object_path(op, 0, &net_id, NULL);
1650         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1651                 reply = wpas_dbus_error_invalid_args(message, op);
1652                 goto out;
1653         }
1654
1655         id = strtoul(net_id, NULL, 10);
1656         if (errno == EINVAL) {
1657                 reply = wpas_dbus_error_invalid_args(message, net_id);
1658                 goto out;
1659         }
1660
1661         ssid = wpa_config_get_network(wpa_s->conf, id);
1662         if (ssid == NULL) {
1663                 reply = wpas_dbus_error_network_unknown(message);
1664                 goto out;
1665         }
1666
1667         if (wpa_supplicant_ctrl_iface_ctrl_rsp_handle(wpa_s, ssid,
1668                                                       field, value) < 0)
1669                 reply = wpas_dbus_error_invalid_args(message, field);
1670         else {
1671                 /* Tell EAP to retry immediately */
1672                 eapol_sm_notify_ctrl_response(wpa_s->eapol);
1673         }
1674
1675 out:
1676         os_free(iface);
1677         os_free(net_id);
1678         return reply;
1679 #else /* IEEE8021X_EAPOL */
1680         wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included");
1681         return wpas_dbus_error_unknown_error(message, "802.1X not included");
1682 #endif /* IEEE8021X_EAPOL */
1683 }
1684
1685
1686 /**
1687  * wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
1688  * @message: Pointer to incoming dbus message
1689  * @wpa_s: %wpa_supplicant data structure
1690  * Returns: A dbus message containing an error on failure or NULL on success
1691  *
1692  * Asks wpa_supplicant to internally store a binary blobs.
1693  */
1694 DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
1695                                          struct wpa_supplicant *wpa_s)
1696 {
1697         DBusMessage *reply = NULL;
1698         DBusMessageIter iter, array_iter;
1699
1700         char *blob_name;
1701         u8 *blob_data;
1702         int blob_len;
1703         struct wpa_config_blob *blob = NULL;
1704
1705         dbus_message_iter_init(message, &iter);
1706         dbus_message_iter_get_basic(&iter, &blob_name);
1707
1708         if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
1709                 return dbus_message_new_error(message,
1710                                               WPAS_DBUS_ERROR_BLOB_EXISTS,
1711                                               NULL);
1712         }
1713
1714         dbus_message_iter_next(&iter);
1715         dbus_message_iter_recurse(&iter, &array_iter);
1716
1717         dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
1718
1719         blob = os_zalloc(sizeof(*blob));
1720         if (!blob) {
1721                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1722                                                NULL);
1723                 goto err;
1724         }
1725
1726         blob->data = os_malloc(blob_len);
1727         if (!blob->data) {
1728                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1729                                                NULL);
1730                 goto err;
1731         }
1732         os_memcpy(blob->data, blob_data, blob_len);
1733
1734         blob->len = blob_len;
1735         blob->name = os_strdup(blob_name);
1736         if (!blob->name) {
1737                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1738                                                NULL);
1739                 goto err;
1740         }
1741
1742         wpa_config_set_blob(wpa_s->conf, blob);
1743         wpas_notify_blob_added(wpa_s, blob->name);
1744
1745         return reply;
1746
1747 err:
1748         if (blob) {
1749                 os_free(blob->name);
1750                 os_free(blob->data);
1751                 os_free(blob);
1752         }
1753         return reply;
1754 }
1755
1756
1757 /**
1758  * wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
1759  * @message: Pointer to incoming dbus message
1760  * @wpa_s: %wpa_supplicant data structure
1761  * Returns: A dbus message containing array of bytes (blob)
1762  *
1763  * Gets one wpa_supplicant's binary blobs.
1764  */
1765 DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
1766                                          struct wpa_supplicant *wpa_s)
1767 {
1768         DBusMessage *reply = NULL;
1769         DBusMessageIter iter, array_iter;
1770
1771         char *blob_name;
1772         const struct wpa_config_blob *blob;
1773
1774         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1775                               DBUS_TYPE_INVALID);
1776
1777         blob = wpa_config_get_blob(wpa_s->conf, blob_name);
1778         if (!blob) {
1779                 return dbus_message_new_error(message,
1780                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1781                                               "Blob id not set");
1782         }
1783
1784         reply = dbus_message_new_method_return(message);
1785         if (!reply) {
1786                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1787                                                NULL);
1788                 goto out;
1789         }
1790
1791         dbus_message_iter_init_append(reply, &iter);
1792
1793         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
1794                                               DBUS_TYPE_BYTE_AS_STRING,
1795                                               &array_iter)) {
1796                 dbus_message_unref(reply);
1797                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1798                                                NULL);
1799                 goto out;
1800         }
1801
1802         if (!dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
1803                                                   &(blob->data), blob->len)) {
1804                 dbus_message_unref(reply);
1805                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1806                                                NULL);
1807                 goto out;
1808         }
1809
1810         if (!dbus_message_iter_close_container(&iter, &array_iter)) {
1811                 dbus_message_unref(reply);
1812                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1813                                                NULL);
1814                 goto out;
1815         }
1816
1817 out:
1818         return reply;
1819 }
1820
1821
1822 /**
1823  * wpas_remove_handler_remove_blob - Remove named binary blob
1824  * @message: Pointer to incoming dbus message
1825  * @wpa_s: %wpa_supplicant data structure
1826  * Returns: NULL on success or dbus error
1827  *
1828  * Asks wpa_supplicant to internally remove a binary blobs.
1829  */
1830 DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
1831                                             struct wpa_supplicant *wpa_s)
1832 {
1833         DBusMessage *reply = NULL;
1834         char *blob_name;
1835
1836         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1837                               DBUS_TYPE_INVALID);
1838
1839         if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
1840                 return dbus_message_new_error(message,
1841                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1842                                               "Blob id not set");
1843         }
1844         wpas_notify_blob_removed(wpa_s, blob_name);
1845
1846         return reply;
1847
1848 }
1849
1850 /*
1851  * wpas_dbus_handler_flush_bss - Flush the BSS cache
1852  * @message: Pointer to incoming dbus message
1853  * @wpa_s: wpa_supplicant structure for a network interface
1854  * Returns: NULL
1855  *
1856  * Handler function for "FlushBSS" method call of network interface.
1857  */
1858 DBusMessage * wpas_dbus_handler_flush_bss(DBusMessage *message,
1859                                           struct wpa_supplicant *wpa_s)
1860 {
1861         dbus_uint32_t age;
1862
1863         dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &age,
1864                               DBUS_TYPE_INVALID);
1865
1866         if (age == 0)
1867                 wpa_bss_flush(wpa_s);
1868         else
1869                 wpa_bss_flush_by_age(wpa_s, age);
1870
1871         return NULL;
1872 }
1873
1874
1875 #ifdef CONFIG_AUTOSCAN
1876 /**
1877  * wpas_dbus_handler_autoscan - Set autoscan parameters for the interface
1878  * @message: Pointer to incoming dbus message
1879  * @wpa_s: wpa_supplicant structure for a network interface
1880  * Returns: NULL
1881  *
1882  * Handler function for "AutoScan" method call of network interface.
1883  */
1884 DBusMessage * wpas_dbus_handler_autoscan(DBusMessage *message,
1885                                          struct wpa_supplicant *wpa_s)
1886 {
1887         DBusMessage *reply = NULL;
1888         enum wpa_states state = wpa_s->wpa_state;
1889         char *arg;
1890
1891         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &arg,
1892                               DBUS_TYPE_INVALID);
1893
1894         if (arg != NULL && os_strlen(arg) > 0) {
1895                 char *tmp;
1896                 tmp = os_strdup(arg);
1897                 if (tmp == NULL) {
1898                         reply = dbus_message_new_error(message,
1899                                                        DBUS_ERROR_NO_MEMORY,
1900                                                        NULL);
1901                 } else {
1902                         os_free(wpa_s->conf->autoscan);
1903                         wpa_s->conf->autoscan = tmp;
1904                         if (state == WPA_DISCONNECTED || state == WPA_INACTIVE)
1905                                 autoscan_init(wpa_s, 1);
1906                         else if (state == WPA_SCANNING)
1907                                 wpa_supplicant_reinit_autoscan(wpa_s);
1908                 }
1909         } else if (arg != NULL && os_strlen(arg) == 0) {
1910                 os_free(wpa_s->conf->autoscan);
1911                 wpa_s->conf->autoscan = NULL;
1912                 autoscan_deinit(wpa_s);
1913         } else
1914                 reply = dbus_message_new_error(message,
1915                                                DBUS_ERROR_INVALID_ARGS,
1916                                                NULL);
1917
1918         return reply;
1919 }
1920 #endif /* CONFIG_AUTOSCAN */
1921
1922
1923 /**
1924  * wpas_dbus_getter_capabilities - Return interface capabilities
1925  * @iter: Pointer to incoming dbus message iter
1926  * @error: Location to store error on failure
1927  * @user_data: Function specific data
1928  * Returns: TRUE on success, FALSE on failure
1929  *
1930  * Getter for "Capabilities" property of an interface.
1931  */
1932 dbus_bool_t wpas_dbus_getter_capabilities(DBusMessageIter *iter,
1933                                           DBusError *error, void *user_data)
1934 {
1935         struct wpa_supplicant *wpa_s = user_data;
1936         struct wpa_driver_capa capa;
1937         int res;
1938         DBusMessageIter iter_dict, iter_dict_entry, iter_dict_val, iter_array,
1939                 variant_iter;
1940         const char *scans[] = { "active", "passive", "ssid" };
1941
1942         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
1943                                               "a{sv}", &variant_iter))
1944                 goto nomem;
1945
1946         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
1947                 goto nomem;
1948
1949         res = wpa_drv_get_capa(wpa_s, &capa);
1950
1951         /***** pairwise cipher */
1952         if (res < 0) {
1953                 const char *args[] = {"ccmp", "tkip", "none"};
1954                 if (!wpa_dbus_dict_append_string_array(
1955                             &iter_dict, "Pairwise", args,
1956                             sizeof(args) / sizeof(char*)))
1957                         goto nomem;
1958         } else {
1959                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
1960                                                       &iter_dict_entry,
1961                                                       &iter_dict_val,
1962                                                       &iter_array))
1963                         goto nomem;
1964
1965                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1966                         if (!wpa_dbus_dict_string_array_add_element(
1967                                     &iter_array, "ccmp"))
1968                                 goto nomem;
1969                 }
1970
1971                 if (capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) {
1972                         if (!wpa_dbus_dict_string_array_add_element(
1973                                     &iter_array, "gcmp"))
1974                                 goto nomem;
1975                 }
1976
1977                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1978                         if (!wpa_dbus_dict_string_array_add_element(
1979                                     &iter_array, "tkip"))
1980                                 goto nomem;
1981                 }
1982
1983                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1984                         if (!wpa_dbus_dict_string_array_add_element(
1985                                     &iter_array, "none"))
1986                                 goto nomem;
1987                 }
1988
1989                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1990                                                     &iter_dict_entry,
1991                                                     &iter_dict_val,
1992                                                     &iter_array))
1993                         goto nomem;
1994         }
1995
1996         /***** group cipher */
1997         if (res < 0) {
1998                 const char *args[] = {
1999                         "ccmp", "tkip", "wep104", "wep40"
2000                 };
2001                 if (!wpa_dbus_dict_append_string_array(
2002                             &iter_dict, "Group", args,
2003                             sizeof(args) / sizeof(char*)))
2004                         goto nomem;
2005         } else {
2006                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
2007                                                       &iter_dict_entry,
2008                                                       &iter_dict_val,
2009                                                       &iter_array))
2010                         goto nomem;
2011
2012                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
2013                         if (!wpa_dbus_dict_string_array_add_element(
2014                                     &iter_array, "ccmp"))
2015                                 goto nomem;
2016                 }
2017
2018                 if (capa.enc & WPA_DRIVER_CAPA_ENC_GCMP) {
2019                         if (!wpa_dbus_dict_string_array_add_element(
2020                                     &iter_array, "gcmp"))
2021                                 goto nomem;
2022                 }
2023
2024                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
2025                         if (!wpa_dbus_dict_string_array_add_element(
2026                                     &iter_array, "tkip"))
2027                                 goto nomem;
2028                 }
2029
2030                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
2031                         if (!wpa_dbus_dict_string_array_add_element(
2032                                     &iter_array, "wep104"))
2033                                 goto nomem;
2034                 }
2035
2036                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
2037                         if (!wpa_dbus_dict_string_array_add_element(
2038                                     &iter_array, "wep40"))
2039                                 goto nomem;
2040                 }
2041
2042                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2043                                                     &iter_dict_entry,
2044                                                     &iter_dict_val,
2045                                                     &iter_array))
2046                         goto nomem;
2047         }
2048
2049         /***** key management */
2050         if (res < 0) {
2051                 const char *args[] = {
2052                         "wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
2053 #ifdef CONFIG_WPS
2054                         "wps",
2055 #endif /* CONFIG_WPS */
2056                         "none"
2057                 };
2058                 if (!wpa_dbus_dict_append_string_array(
2059                             &iter_dict, "KeyMgmt", args,
2060                             sizeof(args) / sizeof(char*)))
2061                         goto nomem;
2062         } else {
2063                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
2064                                                       &iter_dict_entry,
2065                                                       &iter_dict_val,
2066                                                       &iter_array))
2067                         goto nomem;
2068
2069                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
2070                                                             "none"))
2071                         goto nomem;
2072
2073                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
2074                                                             "ieee8021x"))
2075                         goto nomem;
2076
2077                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2078                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
2079                         if (!wpa_dbus_dict_string_array_add_element(
2080                                     &iter_array, "wpa-eap"))
2081                                 goto nomem;
2082
2083                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT)
2084                                 if (!wpa_dbus_dict_string_array_add_element(
2085                                             &iter_array, "wpa-ft-eap"))
2086                                         goto nomem;
2087
2088 /* TODO: Ensure that driver actually supports sha256 encryption. */
2089 #ifdef CONFIG_IEEE80211W
2090                         if (!wpa_dbus_dict_string_array_add_element(
2091                                     &iter_array, "wpa-eap-sha256"))
2092                                 goto nomem;
2093 #endif /* CONFIG_IEEE80211W */
2094                 }
2095
2096                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2097                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
2098                         if (!wpa_dbus_dict_string_array_add_element(
2099                                     &iter_array, "wpa-psk"))
2100                                 goto nomem;
2101
2102                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK)
2103                                 if (!wpa_dbus_dict_string_array_add_element(
2104                                             &iter_array, "wpa-ft-psk"))
2105                                         goto nomem;
2106
2107 /* TODO: Ensure that driver actually supports sha256 encryption. */
2108 #ifdef CONFIG_IEEE80211W
2109                         if (!wpa_dbus_dict_string_array_add_element(
2110                                     &iter_array, "wpa-psk-sha256"))
2111                                 goto nomem;
2112 #endif /* CONFIG_IEEE80211W */
2113                 }
2114
2115                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
2116                         if (!wpa_dbus_dict_string_array_add_element(
2117                                     &iter_array, "wpa-none"))
2118                                 goto nomem;
2119                 }
2120
2121
2122 #ifdef CONFIG_WPS
2123                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
2124                                                             "wps"))
2125                         goto nomem;
2126 #endif /* CONFIG_WPS */
2127
2128                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2129                                                     &iter_dict_entry,
2130                                                     &iter_dict_val,
2131                                                     &iter_array))
2132                         goto nomem;
2133         }
2134
2135         /***** WPA protocol */
2136         if (res < 0) {
2137                 const char *args[] = { "rsn", "wpa" };
2138                 if (!wpa_dbus_dict_append_string_array(
2139                             &iter_dict, "Protocol", args,
2140                             sizeof(args) / sizeof(char*)))
2141                         goto nomem;
2142         } else {
2143                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
2144                                                       &iter_dict_entry,
2145                                                       &iter_dict_val,
2146                                                       &iter_array))
2147                         goto nomem;
2148
2149                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2150                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
2151                         if (!wpa_dbus_dict_string_array_add_element(
2152                                     &iter_array, "rsn"))
2153                                 goto nomem;
2154                 }
2155
2156                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2157                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
2158                         if (!wpa_dbus_dict_string_array_add_element(
2159                                     &iter_array, "wpa"))
2160                                 goto nomem;
2161                 }
2162
2163                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2164                                                     &iter_dict_entry,
2165                                                     &iter_dict_val,
2166                                                     &iter_array))
2167                         goto nomem;
2168         }
2169
2170         /***** auth alg */
2171         if (res < 0) {
2172                 const char *args[] = { "open", "shared", "leap" };
2173                 if (!wpa_dbus_dict_append_string_array(
2174                             &iter_dict, "AuthAlg", args,
2175                             sizeof(args) / sizeof(char*)))
2176                         goto nomem;
2177         } else {
2178                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
2179                                                       &iter_dict_entry,
2180                                                       &iter_dict_val,
2181                                                       &iter_array))
2182                         goto nomem;
2183
2184                 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
2185                         if (!wpa_dbus_dict_string_array_add_element(
2186                                     &iter_array, "open"))
2187                                 goto nomem;
2188                 }
2189
2190                 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
2191                         if (!wpa_dbus_dict_string_array_add_element(
2192                                     &iter_array, "shared"))
2193                                 goto nomem;
2194                 }
2195
2196                 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
2197                         if (!wpa_dbus_dict_string_array_add_element(
2198                                     &iter_array, "leap"))
2199                                 goto nomem;
2200                 }
2201
2202                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
2203                                                     &iter_dict_entry,
2204                                                     &iter_dict_val,
2205                                                     &iter_array))
2206                         goto nomem;
2207         }
2208
2209         /***** Scan */
2210         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
2211                                                sizeof(scans) / sizeof(char *)))
2212                 goto nomem;
2213
2214         /***** Modes */
2215         if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Modes",
2216                                               &iter_dict_entry,
2217                                               &iter_dict_val,
2218                                               &iter_array))
2219                 goto nomem;
2220
2221         if (!wpa_dbus_dict_string_array_add_element(
2222                             &iter_array, "infrastructure"))
2223                 goto nomem;
2224
2225         if (!wpa_dbus_dict_string_array_add_element(
2226                             &iter_array, "ad-hoc"))
2227                 goto nomem;
2228
2229         if (res >= 0) {
2230                 if (capa.flags & (WPA_DRIVER_FLAGS_AP)) {
2231                         if (!wpa_dbus_dict_string_array_add_element(
2232                                     &iter_array, "ap"))
2233                                 goto nomem;
2234                 }
2235
2236                 if (capa.flags & (WPA_DRIVER_FLAGS_P2P_CAPABLE)) {
2237                         if (!wpa_dbus_dict_string_array_add_element(
2238                                     &iter_array, "p2p"))
2239                                 goto nomem;
2240                 }
2241         }
2242
2243         if (!wpa_dbus_dict_end_string_array(&iter_dict,
2244                                             &iter_dict_entry,
2245                                             &iter_dict_val,
2246                                             &iter_array))
2247                 goto nomem;
2248         /***** Modes end */
2249
2250         if (res >= 0) {
2251                 dbus_int32_t max_scan_ssid = capa.max_scan_ssids;
2252
2253                 if (!wpa_dbus_dict_append_int32(&iter_dict, "MaxScanSSID",
2254                                                 max_scan_ssid))
2255                         goto nomem;
2256         }
2257
2258         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
2259                 goto nomem;
2260         if (!dbus_message_iter_close_container(iter, &variant_iter))
2261                 goto nomem;
2262
2263         return TRUE;
2264
2265 nomem:
2266         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2267         return FALSE;
2268 }
2269
2270
2271 /**
2272  * wpas_dbus_getter_state - Get interface state
2273  * @iter: Pointer to incoming dbus message iter
2274  * @error: Location to store error on failure
2275  * @user_data: Function specific data
2276  * Returns: TRUE on success, FALSE on failure
2277  *
2278  * Getter for "State" property.
2279  */
2280 dbus_bool_t wpas_dbus_getter_state(DBusMessageIter *iter, DBusError *error,
2281                                    void *user_data)
2282 {
2283         struct wpa_supplicant *wpa_s = user_data;
2284         const char *str_state;
2285         char *state_ls, *tmp;
2286         dbus_bool_t success = FALSE;
2287
2288         str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
2289
2290         /* make state string lowercase to fit new DBus API convention
2291          */
2292         state_ls = tmp = os_strdup(str_state);
2293         if (!tmp) {
2294                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2295                 return FALSE;
2296         }
2297         while (*tmp) {
2298                 *tmp = tolower(*tmp);
2299                 tmp++;
2300         }
2301
2302         success = wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2303                                                    &state_ls, error);
2304
2305         os_free(state_ls);
2306
2307         return success;
2308 }
2309
2310
2311 /**
2312  * wpas_dbus_new_iface_get_scanning - Get interface scanning state
2313  * @iter: Pointer to incoming dbus message iter
2314  * @error: Location to store error on failure
2315  * @user_data: Function specific data
2316  * Returns: TRUE on success, FALSE on failure
2317  *
2318  * Getter for "scanning" property.
2319  */
2320 dbus_bool_t wpas_dbus_getter_scanning(DBusMessageIter *iter, DBusError *error,
2321                                       void *user_data)
2322 {
2323         struct wpa_supplicant *wpa_s = user_data;
2324         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
2325
2326         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2327                                                 &scanning, error);
2328 }
2329
2330
2331 /**
2332  * wpas_dbus_getter_ap_scan - Control roaming mode
2333  * @iter: Pointer to incoming dbus message iter
2334  * @error: Location to store error on failure
2335  * @user_data: Function specific data
2336  * Returns: TRUE on success, FALSE on failure
2337  *
2338  * Getter function for "ApScan" property.
2339  */
2340 dbus_bool_t wpas_dbus_getter_ap_scan(DBusMessageIter *iter, DBusError *error,
2341                                      void *user_data)
2342 {
2343         struct wpa_supplicant *wpa_s = user_data;
2344         dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
2345
2346         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2347                                                 &ap_scan, error);
2348 }
2349
2350
2351 /**
2352  * wpas_dbus_setter_ap_scan - Control roaming mode
2353  * @iter: Pointer to incoming dbus message iter
2354  * @error: Location to store error on failure
2355  * @user_data: Function specific data
2356  * Returns: TRUE on success, FALSE on failure
2357  *
2358  * Setter function for "ApScan" property.
2359  */
2360 dbus_bool_t wpas_dbus_setter_ap_scan(DBusMessageIter *iter, DBusError *error,
2361                                      void *user_data)
2362 {
2363         struct wpa_supplicant *wpa_s = user_data;
2364         dbus_uint32_t ap_scan;
2365
2366         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2367                                               &ap_scan))
2368                 return FALSE;
2369
2370         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
2371                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2372                                      "ap_scan must be 0, 1, or 2");
2373                 return FALSE;
2374         }
2375         return TRUE;
2376 }
2377
2378
2379 /**
2380  * wpas_dbus_getter_fast_reauth - Control fast
2381  * reauthentication (TLS session resumption)
2382  * @iter: Pointer to incoming dbus message iter
2383  * @error: Location to store error on failure
2384  * @user_data: Function specific data
2385  * Returns: TRUE on success, FALSE on failure
2386  *
2387  * Getter function for "FastReauth" property.
2388  */
2389 dbus_bool_t wpas_dbus_getter_fast_reauth(DBusMessageIter *iter,
2390                                          DBusError *error,
2391                                          void *user_data)
2392 {
2393         struct wpa_supplicant *wpa_s = user_data;
2394         dbus_bool_t fast_reauth = wpa_s->conf->fast_reauth ? TRUE : FALSE;
2395
2396         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
2397                                                 &fast_reauth, error);
2398 }
2399
2400
2401 /**
2402  * wpas_dbus_setter_fast_reauth - Control fast
2403  * reauthentication (TLS session resumption)
2404  * @iter: Pointer to incoming dbus message iter
2405  * @error: Location to store error on failure
2406  * @user_data: Function specific data
2407  * Returns: TRUE on success, FALSE on failure
2408  *
2409  * Setter function for "FastReauth" property.
2410  */
2411 dbus_bool_t wpas_dbus_setter_fast_reauth(DBusMessageIter *iter,
2412                                      DBusError *error,
2413                                      void *user_data)
2414 {
2415         struct wpa_supplicant *wpa_s = user_data;
2416         dbus_bool_t fast_reauth;
2417
2418         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
2419                                               &fast_reauth))
2420                 return FALSE;
2421
2422         wpa_s->conf->fast_reauth = fast_reauth;
2423         return TRUE;
2424 }
2425
2426
2427 /**
2428  * wpas_dbus_getter_disconnect_reason - Get most recent reason for disconnect
2429  * @iter: Pointer to incoming dbus message iter
2430  * @error: Location to store error on failure
2431  * @user_data: Function specific data
2432  * Returns: TRUE on success, FALSE on failure
2433  *
2434  * Getter for "DisconnectReason" property.  The reason is negative if it is
2435  * locally generated.
2436  */
2437 dbus_bool_t wpas_dbus_getter_disconnect_reason(DBusMessageIter *iter,
2438                                                DBusError *error,
2439                                                void *user_data)
2440 {
2441         struct wpa_supplicant *wpa_s = user_data;
2442         dbus_int32_t reason = wpa_s->disconnect_reason;
2443         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2444                                                 &reason, error);
2445 }
2446
2447
2448 /**
2449  * wpas_dbus_getter_bss_expire_age - Get BSS entry expiration age
2450  * @iter: Pointer to incoming dbus message iter
2451  * @error: Location to store error on failure
2452  * @user_data: Function specific data
2453  * Returns: TRUE on success, FALSE on failure
2454  *
2455  * Getter function for "BSSExpireAge" property.
2456  */
2457 dbus_bool_t wpas_dbus_getter_bss_expire_age(DBusMessageIter *iter,
2458                                             DBusError *error,
2459                                             void *user_data)
2460 {
2461         struct wpa_supplicant *wpa_s = user_data;
2462         dbus_uint32_t expire_age = wpa_s->conf->bss_expiration_age;
2463
2464         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2465                                                 &expire_age, error);
2466 }
2467
2468
2469 /**
2470  * wpas_dbus_setter_bss_expire_age - Control BSS entry expiration age
2471  * @iter: Pointer to incoming dbus message iter
2472  * @error: Location to store error on failure
2473  * @user_data: Function specific data
2474  * Returns: TRUE on success, FALSE on failure
2475  *
2476  * Setter function for "BSSExpireAge" property.
2477  */
2478 dbus_bool_t wpas_dbus_setter_bss_expire_age(DBusMessageIter *iter,
2479                                             DBusError *error,
2480                                             void *user_data)
2481 {
2482         struct wpa_supplicant *wpa_s = user_data;
2483         dbus_uint32_t expire_age;
2484
2485         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2486                                               &expire_age))
2487                 return FALSE;
2488
2489         if (wpa_supplicant_set_bss_expiration_age(wpa_s, expire_age)) {
2490                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2491                                      "BSSExpireAge must be >= 10");
2492                 return FALSE;
2493         }
2494         return TRUE;
2495 }
2496
2497
2498 /**
2499  * wpas_dbus_getter_bss_expire_count - Get BSS entry expiration scan count
2500  * @iter: Pointer to incoming dbus message iter
2501  * @error: Location to store error on failure
2502  * @user_data: Function specific data
2503  * Returns: TRUE on success, FALSE on failure
2504  *
2505  * Getter function for "BSSExpireCount" property.
2506  */
2507 dbus_bool_t wpas_dbus_getter_bss_expire_count(DBusMessageIter *iter,
2508                                               DBusError *error,
2509                                               void *user_data)
2510 {
2511         struct wpa_supplicant *wpa_s = user_data;
2512         dbus_uint32_t expire_count = wpa_s->conf->bss_expiration_scan_count;
2513
2514         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT32,
2515                                                 &expire_count, error);
2516 }
2517
2518
2519 /**
2520  * wpas_dbus_setter_bss_expire_count - Control BSS entry expiration scan count
2521  * @iter: Pointer to incoming dbus message iter
2522  * @error: Location to store error on failure
2523  * @user_data: Function specific data
2524  * Returns: TRUE on success, FALSE on failure
2525  *
2526  * Setter function for "BSSExpireCount" property.
2527  */
2528 dbus_bool_t wpas_dbus_setter_bss_expire_count(DBusMessageIter *iter,
2529                                               DBusError *error,
2530                                               void *user_data)
2531 {
2532         struct wpa_supplicant *wpa_s = user_data;
2533         dbus_uint32_t expire_count;
2534
2535         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_UINT32,
2536                                               &expire_count))
2537                 return FALSE;
2538
2539         if (wpa_supplicant_set_bss_expiration_count(wpa_s, expire_count)) {
2540                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2541                                      "BSSExpireCount must be > 0");
2542                 return FALSE;
2543         }
2544         return TRUE;
2545 }
2546
2547
2548 /**
2549  * wpas_dbus_getter_country - Control country code
2550  * @iter: Pointer to incoming dbus message iter
2551  * @error: Location to store error on failure
2552  * @user_data: Function specific data
2553  * Returns: TRUE on success, FALSE on failure
2554  *
2555  * Getter function for "Country" property.
2556  */
2557 dbus_bool_t wpas_dbus_getter_country(DBusMessageIter *iter, DBusError *error,
2558                                      void *user_data)
2559 {
2560         struct wpa_supplicant *wpa_s = user_data;
2561         char country[3];
2562         char *str = country;
2563
2564         country[0] = wpa_s->conf->country[0];
2565         country[1] = wpa_s->conf->country[1];
2566         country[2] = '\0';
2567
2568         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2569                                                 &str, error);
2570 }
2571
2572
2573 /**
2574  * wpas_dbus_setter_country - Control country code
2575  * @iter: Pointer to incoming dbus message iter
2576  * @error: Location to store error on failure
2577  * @user_data: Function specific data
2578  * Returns: TRUE on success, FALSE on failure
2579  *
2580  * Setter function for "Country" property.
2581  */
2582 dbus_bool_t wpas_dbus_setter_country(DBusMessageIter *iter, DBusError *error,
2583                                      void *user_data)
2584 {
2585         struct wpa_supplicant *wpa_s = user_data;
2586         const char *country;
2587
2588         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_STRING,
2589                                               &country))
2590                 return FALSE;
2591
2592         if (!country[0] || !country[1]) {
2593                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2594                                      "invalid country code");
2595                 return FALSE;
2596         }
2597
2598         if (wpa_s->drv_priv != NULL && wpa_drv_set_country(wpa_s, country)) {
2599                 wpa_printf(MSG_DEBUG, "Failed to set country");
2600                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2601                                      "failed to set country code");
2602                 return FALSE;
2603         }
2604
2605         wpa_s->conf->country[0] = country[0];
2606         wpa_s->conf->country[1] = country[1];
2607         return TRUE;
2608 }
2609
2610
2611 /**
2612  * wpas_dbus_getter_scan_interval - Get scan interval
2613  * @iter: Pointer to incoming dbus message iter
2614  * @error: Location to store error on failure
2615  * @user_data: Function specific data
2616  * Returns: TRUE on success, FALSE on failure
2617  *
2618  * Getter function for "ScanInterval" property.
2619  */
2620 dbus_bool_t wpas_dbus_getter_scan_interval(DBusMessageIter *iter,
2621                                            DBusError *error,
2622                                            void *user_data)
2623 {
2624         struct wpa_supplicant *wpa_s = user_data;
2625         dbus_int32_t scan_interval = wpa_s->scan_interval;
2626
2627         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT32,
2628                                                 &scan_interval, error);
2629 }
2630
2631
2632 /**
2633  * wpas_dbus_setter_scan_interval - Control scan interval
2634  * @iter: Pointer to incoming dbus message iter
2635  * @error: Location to store error on failure
2636  * @user_data: Function specific data
2637  * Returns: TRUE on success, FALSE on failure
2638  *
2639  * Setter function for "ScanInterval" property.
2640  */
2641 dbus_bool_t wpas_dbus_setter_scan_interval(DBusMessageIter *iter,
2642                                            DBusError *error,
2643                                            void *user_data)
2644 {
2645         struct wpa_supplicant *wpa_s = user_data;
2646         dbus_int32_t scan_interval;
2647
2648         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_INT32,
2649                                               &scan_interval))
2650                 return FALSE;
2651
2652         if (wpa_supplicant_set_scan_interval(wpa_s, scan_interval)) {
2653                 dbus_set_error_const(error, DBUS_ERROR_FAILED,
2654                                      "scan_interval must be >= 0");
2655                 return FALSE;
2656         }
2657         return TRUE;
2658 }
2659
2660
2661 /**
2662  * wpas_dbus_getter_ifname - Get interface name
2663  * @iter: Pointer to incoming dbus message iter
2664  * @error: Location to store error on failure
2665  * @user_data: Function specific data
2666  * Returns: TRUE on success, FALSE on failure
2667  *
2668  * Getter for "Ifname" property.
2669  */
2670 dbus_bool_t wpas_dbus_getter_ifname(DBusMessageIter *iter, DBusError *error,
2671                                     void *user_data)
2672 {
2673         struct wpa_supplicant *wpa_s = user_data;
2674         const char *ifname = wpa_s->ifname;
2675
2676         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2677                                                 &ifname, error);
2678 }
2679
2680
2681 /**
2682  * wpas_dbus_getter_driver - Get interface name
2683  * @iter: Pointer to incoming dbus message iter
2684  * @error: Location to store error on failure
2685  * @user_data: Function specific data
2686  * Returns: TRUE on success, FALSE on failure
2687  *
2688  * Getter for "Driver" property.
2689  */
2690 dbus_bool_t wpas_dbus_getter_driver(DBusMessageIter *iter, DBusError *error,
2691                                     void *user_data)
2692 {
2693         struct wpa_supplicant *wpa_s = user_data;
2694         const char *driver;
2695
2696         if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
2697                 wpa_printf(MSG_DEBUG, "wpas_dbus_getter_driver[dbus]: "
2698                            "wpa_s has no driver set");
2699                 dbus_set_error(error, DBUS_ERROR_FAILED, "%s: no driver set",
2700                                __func__);
2701                 return FALSE;
2702         }
2703
2704         driver = wpa_s->driver->name;
2705         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2706                                                 &driver, error);
2707 }
2708
2709
2710 /**
2711  * wpas_dbus_getter_current_bss - Get current bss object path
2712  * @iter: Pointer to incoming dbus message iter
2713  * @error: Location to store error on failure
2714  * @user_data: Function specific data
2715  * Returns: TRUE on success, FALSE on failure
2716  *
2717  * Getter for "CurrentBSS" property.
2718  */
2719 dbus_bool_t wpas_dbus_getter_current_bss(DBusMessageIter *iter,
2720                                          DBusError *error,
2721                                          void *user_data)
2722 {
2723         struct wpa_supplicant *wpa_s = user_data;
2724         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
2725
2726         if (wpa_s->current_bss)
2727                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2728                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2729                             wpa_s->dbus_new_path, wpa_s->current_bss->id);
2730         else
2731                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2732
2733         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
2734                                                 &bss_obj_path, error);
2735 }
2736
2737
2738 /**
2739  * wpas_dbus_getter_current_network - Get current network object path
2740  * @iter: Pointer to incoming dbus message iter
2741  * @error: Location to store error on failure
2742  * @user_data: Function specific data
2743  * Returns: TRUE on success, FALSE on failure
2744  *
2745  * Getter for "CurrentNetwork" property.
2746  */
2747 dbus_bool_t wpas_dbus_getter_current_network(DBusMessageIter *iter,
2748                                              DBusError *error,
2749                                              void *user_data)
2750 {
2751         struct wpa_supplicant *wpa_s = user_data;
2752         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
2753
2754         if (wpa_s->current_ssid)
2755                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2756                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
2757                             wpa_s->dbus_new_path, wpa_s->current_ssid->id);
2758         else
2759                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2760
2761         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
2762                                                 &net_obj_path, error);
2763 }
2764
2765
2766 /**
2767  * wpas_dbus_getter_current_auth_mode - Get current authentication type
2768  * @iter: Pointer to incoming dbus message iter
2769  * @error: Location to store error on failure
2770  * @user_data: Function specific data
2771  * Returns: TRUE on success, FALSE on failure
2772  *
2773  * Getter for "CurrentAuthMode" property.
2774  */
2775 dbus_bool_t wpas_dbus_getter_current_auth_mode(DBusMessageIter *iter,
2776                                                DBusError *error,
2777                                                void *user_data)
2778 {
2779         struct wpa_supplicant *wpa_s = user_data;
2780         const char *eap_mode;
2781         const char *auth_mode;
2782         char eap_mode_buf[WPAS_DBUS_AUTH_MODE_MAX];
2783
2784         if (wpa_s->wpa_state != WPA_COMPLETED) {
2785                 auth_mode = "INACTIVE";
2786         } else if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
2787             wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
2788                 eap_mode = wpa_supplicant_get_eap_mode(wpa_s);
2789                 os_snprintf(eap_mode_buf, WPAS_DBUS_AUTH_MODE_MAX,
2790                             "EAP-%s", eap_mode);
2791                 auth_mode = eap_mode_buf;
2792
2793         } else {
2794                 auth_mode = wpa_key_mgmt_txt(wpa_s->key_mgmt,
2795                                              wpa_s->current_ssid->proto);
2796         }
2797
2798         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2799                                                 &auth_mode, error);
2800 }
2801
2802
2803 /**
2804  * wpas_dbus_getter_bridge_ifname - Get interface name
2805  * @iter: Pointer to incoming dbus message iter
2806  * @error: Location to store error on failure
2807  * @user_data: Function specific data
2808  * Returns: TRUE on success, FALSE on failure
2809  *
2810  * Getter for "BridgeIfname" property.
2811  */
2812 dbus_bool_t wpas_dbus_getter_bridge_ifname(DBusMessageIter *iter,
2813                                            DBusError *error,
2814                                            void *user_data)
2815 {
2816         struct wpa_supplicant *wpa_s = user_data;
2817         const char *bridge_ifname = wpa_s->bridge_ifname;
2818         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
2819                                                 &bridge_ifname, error);
2820 }
2821
2822
2823 /**
2824  * wpas_dbus_getter_bsss - Get array of BSSs objects
2825  * @iter: Pointer to incoming dbus message iter
2826  * @error: Location to store error on failure
2827  * @user_data: Function specific data
2828  * Returns: TRUE on success, FALSE on failure
2829  *
2830  * Getter for "BSSs" property.
2831  */
2832 dbus_bool_t wpas_dbus_getter_bsss(DBusMessageIter *iter, DBusError *error,
2833                                   void *user_data)
2834 {
2835         struct wpa_supplicant *wpa_s = user_data;
2836         struct wpa_bss *bss;
2837         char **paths;
2838         unsigned int i = 0;
2839         dbus_bool_t success = FALSE;
2840
2841         paths = os_calloc(wpa_s->num_bss, sizeof(char *));
2842         if (!paths) {
2843                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2844                 return FALSE;
2845         }
2846
2847         /* Loop through scan results and append each result's object path */
2848         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
2849                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2850                 if (paths[i] == NULL) {
2851                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
2852                                              "no memory");
2853                         goto out;
2854                 }
2855                 /* Construct the object path for this BSS. */
2856                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2857                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2858                             wpa_s->dbus_new_path, bss->id);
2859         }
2860
2861         success = wpas_dbus_simple_array_property_getter(iter,
2862                                                          DBUS_TYPE_OBJECT_PATH,
2863                                                          paths, wpa_s->num_bss,
2864                                                          error);
2865
2866 out:
2867         while (i)
2868                 os_free(paths[--i]);
2869         os_free(paths);
2870         return success;
2871 }
2872
2873
2874 /**
2875  * wpas_dbus_getter_networks - Get array of networks objects
2876  * @iter: Pointer to incoming dbus message iter
2877  * @error: Location to store error on failure
2878  * @user_data: Function specific data
2879  * Returns: TRUE on success, FALSE on failure
2880  *
2881  * Getter for "Networks" property.
2882  */
2883 dbus_bool_t wpas_dbus_getter_networks(DBusMessageIter *iter, DBusError *error,
2884                                       void *user_data)
2885 {
2886         struct wpa_supplicant *wpa_s = user_data;
2887         struct wpa_ssid *ssid;
2888         char **paths;
2889         unsigned int i = 0, num = 0;
2890         dbus_bool_t success = FALSE;
2891
2892         if (wpa_s->conf == NULL) {
2893                 wpa_printf(MSG_ERROR, "%s[dbus]: An error occurred getting "
2894                            "networks list.", __func__);
2895                 dbus_set_error(error, DBUS_ERROR_FAILED, "%s: an error "
2896                                "occurred getting the networks list", __func__);
2897                 return FALSE;
2898         }
2899
2900         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2901                 if (!network_is_persistent_group(ssid))
2902                         num++;
2903
2904         paths = os_calloc(num, sizeof(char *));
2905         if (!paths) {
2906                 dbus_set_error(error, DBUS_ERROR_NO_MEMORY, "no memory");
2907                 return FALSE;
2908         }
2909
2910         /* Loop through configured networks and append object path of each */
2911         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
2912                 if (network_is_persistent_group(ssid))
2913                         continue;
2914                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2915                 if (paths[i] == NULL) {
2916                         dbus_set_error(error, DBUS_ERROR_NO_MEMORY, "no memory");
2917                         goto out;
2918                 }
2919
2920                 /* Construct the object path for this network. */
2921                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2922                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
2923                             wpa_s->dbus_new_path, ssid->id);
2924         }
2925
2926         success = wpas_dbus_simple_array_property_getter(iter,
2927                                                          DBUS_TYPE_OBJECT_PATH,
2928                                                          paths, num, error);
2929
2930 out:
2931         while (i)
2932                 os_free(paths[--i]);
2933         os_free(paths);
2934         return success;
2935 }
2936
2937
2938 /**
2939  * wpas_dbus_getter_blobs - Get all blobs defined for this interface
2940  * @iter: Pointer to incoming dbus message iter
2941  * @error: Location to store error on failure
2942  * @user_data: Function specific data
2943  * Returns: TRUE on success, FALSE on failure
2944  *
2945  * Getter for "Blobs" property.
2946  */
2947 dbus_bool_t wpas_dbus_getter_blobs(DBusMessageIter *iter, DBusError *error,
2948                                    void *user_data)
2949 {
2950         struct wpa_supplicant *wpa_s = user_data;
2951         DBusMessageIter variant_iter, dict_iter, entry_iter, array_iter;
2952         struct wpa_config_blob *blob;
2953
2954         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
2955                                               "a{say}", &variant_iter) ||
2956             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
2957                                               "{say}", &dict_iter)) {
2958                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2959                 return FALSE;
2960         }
2961
2962         blob = wpa_s->conf->blobs;
2963         while (blob) {
2964                 if (!dbus_message_iter_open_container(&dict_iter,
2965                                                       DBUS_TYPE_DICT_ENTRY,
2966                                                       NULL, &entry_iter) ||
2967                     !dbus_message_iter_append_basic(&entry_iter,
2968                                                     DBUS_TYPE_STRING,
2969                                                     &(blob->name)) ||
2970                     !dbus_message_iter_open_container(&entry_iter,
2971                                                       DBUS_TYPE_ARRAY,
2972                                                       DBUS_TYPE_BYTE_AS_STRING,
2973                                                       &array_iter) ||
2974                     !dbus_message_iter_append_fixed_array(&array_iter,
2975                                                           DBUS_TYPE_BYTE,
2976                                                           &(blob->data),
2977                                                           blob->len) ||
2978                     !dbus_message_iter_close_container(&entry_iter,
2979                                                        &array_iter) ||
2980                     !dbus_message_iter_close_container(&dict_iter,
2981                                                        &entry_iter)) {
2982                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
2983                                              "no memory");
2984                         return FALSE;
2985                 }
2986
2987                 blob = blob->next;
2988         }
2989
2990         if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
2991             !dbus_message_iter_close_container(iter, &variant_iter)) {
2992                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
2993                 return FALSE;
2994         }
2995
2996         return TRUE;
2997 }
2998
2999
3000 static struct wpa_bss * get_bss_helper(struct bss_handler_args *args,
3001                                        DBusError *error, const char *func_name)
3002 {
3003         struct wpa_bss *res = wpa_bss_get_id(args->wpa_s, args->id);
3004
3005         if (!res) {
3006                 wpa_printf(MSG_ERROR, "%s[dbus]: no bss with id %d found",
3007                            func_name, args->id);
3008                 dbus_set_error(error, DBUS_ERROR_FAILED,
3009                                "%s: BSS %d not found",
3010                                func_name, args->id);
3011         }
3012
3013         return res;
3014 }
3015
3016
3017 /**
3018  * wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
3019  * @iter: Pointer to incoming dbus message iter
3020  * @error: Location to store error on failure
3021  * @user_data: Function specific data
3022  * Returns: TRUE on success, FALSE on failure
3023  *
3024  * Getter for "BSSID" property.
3025  */
3026 dbus_bool_t wpas_dbus_getter_bss_bssid(DBusMessageIter *iter, DBusError *error,
3027                                        void *user_data)
3028 {
3029         struct bss_handler_args *args = user_data;
3030         struct wpa_bss *res;
3031
3032         res = get_bss_helper(args, error, __func__);
3033         if (!res)
3034                 return FALSE;
3035
3036         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3037                                                       res->bssid, ETH_ALEN,
3038                                                       error);
3039 }
3040
3041
3042 /**
3043  * wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
3044  * @iter: Pointer to incoming dbus message iter
3045  * @error: Location to store error on failure
3046  * @user_data: Function specific data
3047  * Returns: TRUE on success, FALSE on failure
3048  *
3049  * Getter for "SSID" property.
3050  */
3051 dbus_bool_t wpas_dbus_getter_bss_ssid(DBusMessageIter *iter, DBusError *error,
3052                                       void *user_data)
3053 {
3054         struct bss_handler_args *args = user_data;
3055         struct wpa_bss *res;
3056
3057         res = get_bss_helper(args, error, __func__);
3058         if (!res)
3059                 return FALSE;
3060
3061         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3062                                                       res->ssid, res->ssid_len,
3063                                                       error);
3064 }
3065
3066
3067 /**
3068  * wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
3069  * @iter: Pointer to incoming dbus message iter
3070  * @error: Location to store error on failure
3071  * @user_data: Function specific data
3072  * Returns: TRUE on success, FALSE on failure
3073  *
3074  * Getter for "Privacy" property.
3075  */
3076 dbus_bool_t wpas_dbus_getter_bss_privacy(DBusMessageIter *iter,
3077                                          DBusError *error, void *user_data)
3078 {
3079         struct bss_handler_args *args = user_data;
3080         struct wpa_bss *res;
3081         dbus_bool_t privacy;
3082
3083         res = get_bss_helper(args, error, __func__);
3084         if (!res)
3085                 return FALSE;
3086
3087         privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
3088         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
3089                                                 &privacy, error);
3090 }
3091
3092
3093 /**
3094  * wpas_dbus_getter_bss_mode - Return the mode of a BSS
3095  * @iter: Pointer to incoming dbus message iter
3096  * @error: Location to store error on failure
3097  * @user_data: Function specific data
3098  * Returns: TRUE on success, FALSE on failure
3099  *
3100  * Getter for "Mode" property.
3101  */
3102 dbus_bool_t wpas_dbus_getter_bss_mode(DBusMessageIter *iter, DBusError *error,
3103                                       void *user_data)
3104 {
3105         struct bss_handler_args *args = user_data;
3106         struct wpa_bss *res;
3107         const char *mode;
3108
3109         res = get_bss_helper(args, error, __func__);
3110         if (!res)
3111                 return FALSE;
3112
3113         if (res->caps & IEEE80211_CAP_IBSS)
3114                 mode = "ad-hoc";
3115         else
3116                 mode = "infrastructure";
3117
3118         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING,
3119                                                 &mode, error);
3120 }
3121
3122
3123 /**
3124  * wpas_dbus_getter_bss_level - Return the signal strength of a BSS
3125  * @iter: Pointer to incoming dbus message iter
3126  * @error: Location to store error on failure
3127  * @user_data: Function specific data
3128  * Returns: TRUE on success, FALSE on failure
3129  *
3130  * Getter for "Level" property.
3131  */
3132 dbus_bool_t wpas_dbus_getter_bss_signal(DBusMessageIter *iter,
3133                                         DBusError *error, void *user_data)
3134 {
3135         struct bss_handler_args *args = user_data;
3136         struct wpa_bss *res;
3137         s16 level;
3138
3139         res = get_bss_helper(args, error, __func__);
3140         if (!res)
3141                 return FALSE;
3142
3143         level = (s16) res->level;
3144         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_INT16,
3145                                                 &level, error);
3146 }
3147
3148
3149 /**
3150  * wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
3151  * @iter: Pointer to incoming dbus message iter
3152  * @error: Location to store error on failure
3153  * @user_data: Function specific data
3154  * Returns: TRUE on success, FALSE on failure
3155  *
3156  * Getter for "Frequency" property.
3157  */
3158 dbus_bool_t wpas_dbus_getter_bss_frequency(DBusMessageIter *iter,
3159                                            DBusError *error, void *user_data)
3160 {
3161         struct bss_handler_args *args = user_data;
3162         struct wpa_bss *res;
3163         u16 freq;
3164
3165         res = get_bss_helper(args, error, __func__);
3166         if (!res)
3167                 return FALSE;
3168
3169         freq = (u16) res->freq;
3170         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_UINT16,
3171                                                 &freq, error);
3172 }
3173
3174
3175 static int cmp_u8s_desc(const void *a, const void *b)
3176 {
3177         return (*(u8 *) b - *(u8 *) a);
3178 }
3179
3180
3181 /**
3182  * wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
3183  * @iter: Pointer to incoming dbus message iter
3184  * @error: Location to store error on failure
3185  * @user_data: Function specific data
3186  * Returns: TRUE on success, FALSE on failure
3187  *
3188  * Getter for "Rates" property.
3189  */
3190 dbus_bool_t wpas_dbus_getter_bss_rates(DBusMessageIter *iter,
3191                                        DBusError *error, void *user_data)
3192 {
3193         struct bss_handler_args *args = user_data;
3194         struct wpa_bss *res;
3195         u8 *ie_rates = NULL;
3196         u32 *real_rates;
3197         int rates_num, i;
3198         dbus_bool_t success = FALSE;
3199
3200         res = get_bss_helper(args, error, __func__);
3201         if (!res)
3202                 return FALSE;
3203
3204         rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
3205         if (rates_num < 0)
3206                 return FALSE;
3207
3208         qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
3209
3210         real_rates = os_malloc(sizeof(u32) * rates_num);
3211         if (!real_rates) {
3212                 os_free(ie_rates);
3213                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3214                 return FALSE;
3215         }
3216
3217         for (i = 0; i < rates_num; i++)
3218                 real_rates[i] = ie_rates[i] * 500000;
3219
3220         success = wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_UINT32,
3221                                                          real_rates, rates_num,
3222                                                          error);
3223
3224         os_free(ie_rates);
3225         os_free(real_rates);
3226         return success;
3227 }
3228
3229
3230 static dbus_bool_t wpas_dbus_get_bss_security_prop(DBusMessageIter *iter,
3231                                                    struct wpa_ie_data *ie_data,
3232                                                    DBusError *error)
3233 {
3234         DBusMessageIter iter_dict, variant_iter;
3235         const char *group;
3236         const char *pairwise[3]; /* max 3 pairwise ciphers is supported */
3237         const char *key_mgmt[7]; /* max 7 key managements may be supported */
3238         int n;
3239
3240         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3241                                               "a{sv}", &variant_iter))
3242                 goto nomem;
3243
3244         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
3245                 goto nomem;
3246
3247         /* KeyMgmt */
3248         n = 0;
3249         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
3250                 key_mgmt[n++] = "wpa-psk";
3251         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
3252                 key_mgmt[n++] = "wpa-ft-psk";
3253         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
3254                 key_mgmt[n++] = "wpa-psk-sha256";
3255         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
3256                 key_mgmt[n++] = "wpa-eap";
3257         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
3258                 key_mgmt[n++] = "wpa-ft-eap";
3259         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
3260                 key_mgmt[n++] = "wpa-eap-sha256";
3261         if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
3262                 key_mgmt[n++] = "wpa-none";
3263
3264         if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
3265                                                key_mgmt, n))
3266                 goto nomem;
3267
3268         /* Group */
3269         switch (ie_data->group_cipher) {
3270         case WPA_CIPHER_WEP40:
3271                 group = "wep40";
3272                 break;
3273         case WPA_CIPHER_TKIP:
3274                 group = "tkip";
3275                 break;
3276         case WPA_CIPHER_CCMP:
3277                 group = "ccmp";
3278                 break;
3279         case WPA_CIPHER_GCMP:
3280                 group = "gcmp";
3281                 break;
3282         case WPA_CIPHER_WEP104:
3283                 group = "wep104";
3284                 break;
3285         default:
3286                 group = "";
3287                 break;
3288         }
3289
3290         if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
3291                 goto nomem;
3292
3293         /* Pairwise */
3294         n = 0;
3295         if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
3296                 pairwise[n++] = "tkip";
3297         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
3298                 pairwise[n++] = "ccmp";
3299         if (ie_data->pairwise_cipher & WPA_CIPHER_GCMP)
3300                 pairwise[n++] = "gcmp";
3301
3302         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
3303                                                pairwise, n))
3304                 goto nomem;
3305
3306         /* Management group (RSN only) */
3307         if (ie_data->proto == WPA_PROTO_RSN) {
3308                 switch (ie_data->mgmt_group_cipher) {
3309 #ifdef CONFIG_IEEE80211W
3310                 case WPA_CIPHER_AES_128_CMAC:
3311                         group = "aes128cmac";
3312                         break;
3313 #endif /* CONFIG_IEEE80211W */
3314                 default:
3315                         group = "";
3316                         break;
3317                 }
3318
3319                 if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
3320                                                  group))
3321                         goto nomem;
3322         }
3323
3324         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
3325                 goto nomem;
3326         if (!dbus_message_iter_close_container(iter, &variant_iter))
3327                 goto nomem;
3328
3329         return TRUE;
3330
3331 nomem:
3332         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3333         return FALSE;
3334 }
3335
3336
3337 /**
3338  * wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
3339  * @iter: Pointer to incoming dbus message iter
3340  * @error: Location to store error on failure
3341  * @user_data: Function specific data
3342  * Returns: TRUE on success, FALSE on failure
3343  *
3344  * Getter for "WPA" property.
3345  */
3346 dbus_bool_t wpas_dbus_getter_bss_wpa(DBusMessageIter *iter, DBusError *error,
3347                                      void *user_data)
3348 {
3349         struct bss_handler_args *args = user_data;
3350         struct wpa_bss *res;
3351         struct wpa_ie_data wpa_data;
3352         const u8 *ie;
3353
3354         res = get_bss_helper(args, error, __func__);
3355         if (!res)
3356                 return FALSE;
3357
3358         os_memset(&wpa_data, 0, sizeof(wpa_data));
3359         ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
3360         if (ie) {
3361                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
3362                         dbus_set_error_const(error, DBUS_ERROR_FAILED,
3363                                              "failed to parse WPA IE");
3364                         return FALSE;
3365                 }
3366         }
3367
3368         return wpas_dbus_get_bss_security_prop(iter, &wpa_data, error);
3369 }
3370
3371
3372 /**
3373  * wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
3374  * @iter: Pointer to incoming dbus message iter
3375  * @error: Location to store error on failure
3376  * @user_data: Function specific data
3377  * Returns: TRUE on success, FALSE on failure
3378  *
3379  * Getter for "RSN" property.
3380  */
3381 dbus_bool_t wpas_dbus_getter_bss_rsn(DBusMessageIter *iter, DBusError *error,
3382                                      void *user_data)
3383 {
3384         struct bss_handler_args *args = user_data;
3385         struct wpa_bss *res;
3386         struct wpa_ie_data wpa_data;
3387         const u8 *ie;
3388
3389         res = get_bss_helper(args, error, __func__);
3390         if (!res)
3391                 return FALSE;
3392
3393         os_memset(&wpa_data, 0, sizeof(wpa_data));
3394         ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
3395         if (ie) {
3396                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0) {
3397                         dbus_set_error_const(error, DBUS_ERROR_FAILED,
3398                                              "failed to parse RSN IE");
3399                         return FALSE;
3400                 }
3401         }
3402
3403         return wpas_dbus_get_bss_security_prop(iter, &wpa_data, error);
3404 }
3405
3406
3407 /**
3408  * wpas_dbus_getter_bss_wps - Return the WPS options of a BSS
3409  * @iter: Pointer to incoming dbus message iter
3410  * @error: Location to store error on failure
3411  * @user_data: Function specific data
3412  * Returns: TRUE on success, FALSE on failure
3413  *
3414  * Getter for "WPS" property.
3415  */
3416 dbus_bool_t wpas_dbus_getter_bss_wps(DBusMessageIter *iter, DBusError *error,
3417                                      void *user_data)
3418 {
3419         struct bss_handler_args *args = user_data;
3420         struct wpa_bss *res;
3421 #ifdef CONFIG_WPS
3422         struct wpabuf *wps_ie;
3423 #endif /* CONFIG_WPS */
3424         DBusMessageIter iter_dict, variant_iter;
3425         const char *type = "";
3426
3427         res = get_bss_helper(args, error, __func__);
3428         if (!res)
3429                 return FALSE;
3430
3431         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
3432                                               "a{sv}", &variant_iter))
3433                 goto nomem;
3434
3435         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
3436                 goto nomem;
3437
3438 #ifdef CONFIG_WPS
3439         wps_ie = wpa_bss_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE);
3440         if (wps_ie) {
3441                 if (wps_is_selected_pbc_registrar(wps_ie))
3442                         type = "pbc";
3443                 else if (wps_is_selected_pin_registrar(wps_ie))
3444                         type = "pin";
3445         }
3446 #endif /* CONFIG_WPS */
3447
3448         if (!wpa_dbus_dict_append_string(&iter_dict, "Type", type))
3449                 goto nomem;
3450
3451         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
3452                 goto nomem;
3453         if (!dbus_message_iter_close_container(iter, &variant_iter))
3454                 goto nomem;
3455
3456         return TRUE;
3457
3458 nomem:
3459         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3460         return FALSE;
3461 }
3462
3463
3464 /**
3465  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
3466  * @iter: Pointer to incoming dbus message iter
3467  * @error: Location to store error on failure
3468  * @user_data: Function specific data
3469  * Returns: TRUE on success, FALSE on failure
3470  *
3471  * Getter for "IEs" property.
3472  */
3473 dbus_bool_t wpas_dbus_getter_bss_ies(DBusMessageIter *iter, DBusError *error,
3474                                      void *user_data)
3475 {
3476         struct bss_handler_args *args = user_data;
3477         struct wpa_bss *res;
3478
3479         res = get_bss_helper(args, error, __func__);
3480         if (!res)
3481                 return FALSE;
3482
3483         return wpas_dbus_simple_array_property_getter(iter, DBUS_TYPE_BYTE,
3484                                                       res + 1, res->ie_len,
3485                                                       error);
3486 }
3487
3488
3489 /**
3490  * wpas_dbus_getter_enabled - Check whether network is enabled or disabled
3491  * @iter: Pointer to incoming dbus message iter
3492  * @error: Location to store error on failure
3493  * @user_data: Function specific data
3494  * Returns: TRUE on success, FALSE on failure
3495  *
3496  * Getter for "enabled" property of a configured network.
3497  */
3498 dbus_bool_t wpas_dbus_getter_enabled(DBusMessageIter *iter, DBusError *error,
3499                                      void *user_data)
3500 {
3501         struct network_handler_args *net = user_data;
3502         dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
3503
3504         return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_BOOLEAN,
3505                                                 &enabled, error);
3506 }
3507
3508
3509 /**
3510  * wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
3511  * @iter: Pointer to incoming dbus message iter
3512  * @error: Location to store error on failure
3513  * @user_data: Function specific data
3514  * Returns: TRUE on success, FALSE on failure
3515  *
3516  * Setter for "Enabled" property of a configured network.
3517  */
3518 dbus_bool_t wpas_dbus_setter_enabled(DBusMessageIter *iter, DBusError *error,
3519                                      void *user_data)
3520 {
3521         struct network_handler_args *net = user_data;
3522         struct wpa_supplicant *wpa_s;
3523         struct wpa_ssid *ssid;
3524         dbus_bool_t enable;
3525
3526         if (!wpas_dbus_simple_property_setter(iter, error, DBUS_TYPE_BOOLEAN,
3527                                               &enable))
3528                 return FALSE;
3529
3530         wpa_s = net->wpa_s;
3531         ssid = net->ssid;
3532
3533         if (enable)
3534                 wpa_supplicant_enable_network(wpa_s, ssid);
3535         else
3536                 wpa_supplicant_disable_network(wpa_s, ssid);
3537
3538         return TRUE;
3539 }
3540
3541
3542 /**
3543  * wpas_dbus_getter_network_properties - Get options for a configured network
3544  * @iter: Pointer to incoming dbus message iter
3545  * @error: Location to store error on failure
3546  * @user_data: Function specific data
3547  * Returns: TRUE on success, FALSE on failure
3548  *
3549  * Getter for "Properties" property of a configured network.
3550  */
3551 dbus_bool_t wpas_dbus_getter_network_properties(DBusMessageIter *iter,
3552                                                 DBusError *error,
3553                                                 void *user_data)
3554 {
3555         struct network_handler_args *net = user_data;
3556         DBusMessageIter variant_iter, dict_iter;
3557         char **iterator;
3558         char **props = wpa_config_get_all(net->ssid, 1);
3559         dbus_bool_t success = FALSE;
3560
3561         if (!props) {
3562                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3563                 return FALSE;
3564         }
3565
3566         if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT, "a{sv}",
3567                                               &variant_iter) ||
3568             !wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
3569                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3570                 goto out;
3571         }
3572
3573         iterator = props;
3574         while (*iterator) {
3575                 if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
3576                                                  *(iterator + 1))) {
3577                         dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
3578                                              "no memory");
3579                         goto out;
3580                 }
3581                 iterator += 2;
3582         }
3583
3584
3585         if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
3586             !dbus_message_iter_close_container(iter, &variant_iter)) {
3587                 dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
3588                 goto out;
3589         }
3590
3591         success = TRUE;
3592
3593 out:
3594         iterator = props;
3595         while (*iterator) {
3596                 os_free(*iterator);
3597                 iterator++;
3598         }
3599         os_free(props);
3600         return success;
3601 }
3602
3603
3604 /**
3605  * wpas_dbus_setter_network_properties - Set options for a configured network
3606  * @iter: Pointer to incoming dbus message iter
3607  * @error: Location to store error on failure
3608  * @user_data: Function specific data
3609  * Returns: TRUE on success, FALSE on failure
3610  *
3611  * Setter for "Properties" property of a configured network.
3612  */
3613 dbus_bool_t wpas_dbus_setter_network_properties(DBusMessageIter *iter,
3614                                                 DBusError *error,
3615                                                 void *user_data)
3616 {
3617         struct network_handler_args *net = user_data;
3618         struct wpa_ssid *ssid = net->ssid;
3619         DBusMessageIter variant_iter;
3620
3621         dbus_message_iter_recurse(iter, &variant_iter);
3622         return set_network_properties(net->wpa_s, ssid, &variant_iter, error);
3623 }
3624
3625
3626 #ifdef CONFIG_AP
3627
3628 DBusMessage * wpas_dbus_handler_subscribe_preq(
3629         DBusMessage *message, struct wpa_supplicant *wpa_s)
3630 {
3631         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
3632         char *name;
3633
3634         if (wpa_s->preq_notify_peer != NULL) {
3635                 if (os_strcmp(dbus_message_get_sender(message),
3636                               wpa_s->preq_notify_peer) == 0)
3637                         return NULL;
3638
3639                 return dbus_message_new_error(message,
3640                         WPAS_DBUS_ERROR_SUBSCRIPTION_IN_USE,
3641                         "Another application is already subscribed");
3642         }
3643
3644         name = os_strdup(dbus_message_get_sender(message));
3645         if (!name)
3646                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
3647                                               "out of memory");
3648
3649         wpa_s->preq_notify_peer = name;
3650
3651         /* Subscribe to clean up if application closes socket */
3652         wpas_dbus_subscribe_noc(priv);
3653
3654         /*
3655          * Double-check it's still alive to make sure that we didn't
3656          * miss the NameOwnerChanged signal, e.g. while strdup'ing.
3657          */
3658         if (!dbus_bus_name_has_owner(priv->con, name, NULL)) {
3659                 /*
3660                  * Application no longer exists, clean up.
3661                  * The return value is irrelevant now.
3662                  *
3663                  * Need to check if the NameOwnerChanged handling
3664                  * already cleaned up because we have processed
3665                  * DBus messages while checking if the name still
3666                  * has an owner.
3667                  */
3668                 if (!wpa_s->preq_notify_peer)
3669                         return NULL;
3670                 os_free(wpa_s->preq_notify_peer);
3671                 wpa_s->preq_notify_peer = NULL;
3672                 wpas_dbus_unsubscribe_noc(priv);
3673         }
3674
3675         return NULL;
3676 }
3677
3678
3679 DBusMessage * wpas_dbus_handler_unsubscribe_preq(
3680         DBusMessage *message, struct wpa_supplicant *wpa_s)
3681 {
3682         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
3683
3684         if (!wpa_s->preq_notify_peer)
3685                 return dbus_message_new_error(message,
3686                         WPAS_DBUS_ERROR_NO_SUBSCRIPTION,
3687                         "Not subscribed");
3688
3689         if (os_strcmp(wpa_s->preq_notify_peer,
3690                       dbus_message_get_sender(message)))
3691                 return dbus_message_new_error(message,
3692                         WPAS_DBUS_ERROR_SUBSCRIPTION_EPERM,
3693                         "Can't unsubscribe others");
3694
3695         os_free(wpa_s->preq_notify_peer);
3696         wpa_s->preq_notify_peer = NULL;
3697         wpas_dbus_unsubscribe_noc(priv);
3698         return NULL;
3699 }
3700
3701
3702 void wpas_dbus_signal_preq(struct wpa_supplicant *wpa_s,
3703                            const u8 *addr, const u8 *dst, const u8 *bssid,
3704                            const u8 *ie, size_t ie_len, u32 ssi_signal)
3705 {
3706         DBusMessage *msg;
3707         DBusMessageIter iter, dict_iter;
3708         struct wpas_dbus_priv *priv = wpa_s->global->dbus;
3709
3710         /* Do nothing if the control interface is not turned on */
3711         if (priv == NULL)
3712                 return;
3713
3714         if (wpa_s->preq_notify_peer == NULL)
3715                 return;
3716
3717         msg = dbus_message_new_signal(wpa_s->dbus_new_path,
3718                                       WPAS_DBUS_NEW_IFACE_INTERFACE,
3719                                       "ProbeRequest");
3720         if (msg == NULL)
3721                 return;
3722
3723         dbus_message_set_destination(msg, wpa_s->preq_notify_peer);
3724
3725         dbus_message_iter_init_append(msg, &iter);
3726
3727         if (!wpa_dbus_dict_open_write(&iter, &dict_iter))
3728                 goto fail;
3729         if (addr && !wpa_dbus_dict_append_byte_array(&dict_iter, "addr",
3730                                                      (const char *) addr,
3731                                                      ETH_ALEN))
3732                 goto fail;
3733         if (dst && !wpa_dbus_dict_append_byte_array(&dict_iter, "dst",
3734                                                     (const char *) dst,
3735                                                     ETH_ALEN))
3736                 goto fail;
3737         if (bssid && !wpa_dbus_dict_append_byte_array(&dict_iter, "bssid",
3738                                                       (const char *) bssid,
3739                                                       ETH_ALEN))
3740                 goto fail;
3741         if (ie && ie_len && !wpa_dbus_dict_append_byte_array(&dict_iter, "ies",
3742                                                              (const char *) ie,
3743                                                              ie_len))
3744                 goto fail;
3745         if (ssi_signal && !wpa_dbus_dict_append_int32(&dict_iter, "signal",
3746                                                       ssi_signal))
3747                 goto fail;
3748         if (!wpa_dbus_dict_close_write(&iter, &dict_iter))
3749                 goto fail;
3750
3751         dbus_connection_send(priv->con, msg, NULL);
3752         goto out;
3753 fail:
3754         wpa_printf(MSG_ERROR, "dbus: Failed to construct signal");
3755 out:
3756         dbus_message_unref(msg);
3757 }
3758
3759 #endif /* CONFIG_AP */