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