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 program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Alternatively, this software may be distributed under the terms of BSD
  12  * license.
  13  *
  14  * See README and COPYING for more details.
  15  */
  16
  17 #include "includes.h"
  18
  19 #include "common.h"
  20 #include "common/ieee802_11_defs.h"
  21 #include "eap_peer/eap_methods.h"
  22 #include "eapol_supp/eapol_supp_sm.h"
  23 #include "rsn_supp/wpa.h"
  24 #include "../config.h"
  25 #include "../wpa_supplicant_i.h"
  26 #include "../driver_i.h"
  27 #include "../notify.h"
  28 #include "../wpas_glue.h"
  29 #include "../bss.h"
  30 #include "../scan.h"
  31 #include "dbus_new_helpers.h"
  32 #include "dbus_new.h"
  33 #include "dbus_new_handlers.h"
  34 #include "dbus_dict_helpers.h"
  35
  36 extern int wpa_debug_level;
  37 extern int wpa_debug_show_keys;
  38 extern int wpa_debug_timestamp;
  39
  40 static const char *debug_strings[] = {
  41         "msgdump", "debug", "info", "warning", "error", NULL
  42 };
  43
  44
  45 /**
  46  * wpas_dbus_new_decompose_object_path - Decompose an interface object path into parts
  47  * @path: The dbus object path
  48  * @network: (out) the configured network this object path refers to, if any
  49  * @bssid: (out) the scanned bssid this object path refers to, if any
  50  * Returns: The object path of the network interface this path refers to
  51  *
  52  * For a given object path, decomposes the object path into object id, network,
  53  * and BSSID parts, if those parts exist.
  54  */
  55 static char * wpas_dbus_new_decompose_object_path(const char *path,
  56                                                   char **network,
  57                                                   char **bssid)
  58 {
  59         const unsigned int dev_path_prefix_len =
  60                 strlen(WPAS_DBUS_NEW_PATH_INTERFACES "/");
  61         char *obj_path_only;
  62         char *next_sep;
  63
  64         /* Be a bit paranoid about path */
  65         if (!path || os_strncmp(path, WPAS_DBUS_NEW_PATH_INTERFACES "/",
  66                                 dev_path_prefix_len))
  67                 return NULL;
  68
  69         /* Ensure there's something at the end of the path */
  70         if ((path + dev_path_prefix_len)[0] == '\0')
  71                 return NULL;
  72
  73         obj_path_only = os_strdup(path);
  74         if (obj_path_only == NULL)
  75                 return NULL;
  76
  77         next_sep = os_strchr(obj_path_only + dev_path_prefix_len, '/');
  78         if (next_sep != NULL) {
  79                 const char *net_part = os_strstr(
  80                         next_sep, WPAS_DBUS_NEW_NETWORKS_PART "/");
  81                 const char *bssid_part = os_strstr(
  82                         next_sep, WPAS_DBUS_NEW_BSSIDS_PART "/");
  83
  84                 if (network && net_part) {
  85                         /* Deal with a request for a configured network */
  86                         const char *net_name = net_part +
  87                                 os_strlen(WPAS_DBUS_NEW_NETWORKS_PART "/");
  88                         *network = NULL;
  89                         if (os_strlen(net_name))
  90                                 *network = os_strdup(net_name);
  91                 } else if (bssid && bssid_part) {
  92                         /* Deal with a request for a scanned BSSID */
  93                         const char *bssid_name = bssid_part +
  94                                 os_strlen(WPAS_DBUS_NEW_BSSIDS_PART "/");
  95                         if (strlen(bssid_name))
  96                                 *bssid = os_strdup(bssid_name);
  97                         else
  98                                 *bssid = NULL;
  99                 }
 100
 101                 /* Cut off interface object path before "/" */
 102                 *next_sep = '\0';
 103         }
 104
 105         return obj_path_only;
 106 }
 107
 108
 109 /**
 110  * wpas_dbus_error_unknown_error - Return a new InvalidArgs error message
 111  * @message: Pointer to incoming dbus message this error refers to
 112  * @arg: Optional string appended to error message
 113  * Returns: a dbus error message
 114  *
 115  * Convenience function to create and return an UnknownError
 116  */
 117 DBusMessage * wpas_dbus_error_unknown_error(DBusMessage *message,
 118                                             const char *arg)
 119 {
 120         return dbus_message_new_error(message, WPAS_DBUS_ERROR_UNKNOWN_ERROR,
 121                                       arg);
 122 }
 123
 124
 125 /**
 126  * wpas_dbus_error_iface_unknown - Return a new invalid interface error message
 127  * @message: Pointer to incoming dbus message this error refers to
 128  * Returns: A dbus error message
 129  *
 130  * Convenience function to create and return an invalid interface error
 131  */
 132 static DBusMessage * wpas_dbus_error_iface_unknown(DBusMessage *message)
 133 {
 134         return dbus_message_new_error(message, WPAS_DBUS_ERROR_IFACE_UNKNOWN,
 135                                       "wpa_supplicant knows nothing about "
 136                                       "this interface.");
 137 }
 138
 139
 140 /**
 141  * wpas_dbus_error_network_unknown - Return a new NetworkUnknown error message
 142  * @message: Pointer to incoming dbus message this error refers to
 143  * Returns: a dbus error message
 144  *
 145  * Convenience function to create and return an invalid network error
 146  */
 147 static DBusMessage * wpas_dbus_error_network_unknown(DBusMessage *message)
 148 {
 149         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NETWORK_UNKNOWN,
 150                                       "There is no such a network in this "
 151                                       "interface.");
 152 }
 153
 154
 155 /**
 156  * wpas_dbus_error_invalid_args - Return a new InvalidArgs error message
 157  * @message: Pointer to incoming dbus message this error refers to
 158  * Returns: a dbus error message
 159  *
 160  * Convenience function to create and return an invalid options error
 161  */
 162 DBusMessage * wpas_dbus_error_invalid_args(DBusMessage *message,
 163                                           const char *arg)
 164 {
 165         DBusMessage *reply;
 166
 167         reply = dbus_message_new_error(message, WPAS_DBUS_ERROR_INVALID_ARGS,
 168                                        "Did not receive correct message "
 169                                        "arguments.");
 170         if (arg != NULL)
 171                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
 172                                          DBUS_TYPE_INVALID);
 173
 174         return reply;
 175 }
 176
 177
 178 static const char *dont_quote[] = {
 179         "key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
 180         "opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
 181         "bssid", NULL
 182 };
 183
 184 static dbus_bool_t should_quote_opt(const char *key)
 185 {
 186         int i = 0;
 187         while (dont_quote[i] != NULL) {
 188                 if (os_strcmp(key, dont_quote[i]) == 0)
 189                         return FALSE;
 190                 i++;
 191         }
 192         return TRUE;
 193 }
 194
 195 /**
 196  * get_iface_by_dbus_path - Get a new network interface
 197  * @global: Pointer to global data from wpa_supplicant_init()
 198  * @path: Pointer to a dbus object path representing an interface
 199  * Returns: Pointer to the interface or %NULL if not found
 200  */
 201 static struct wpa_supplicant * get_iface_by_dbus_path(
 202         struct wpa_global *global, const char *path)
 203 {
 204         struct wpa_supplicant *wpa_s;
 205
 206         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 207                 if (os_strcmp(wpa_s->dbus_new_path, path) == 0)
 208                         return wpa_s;
 209         }
 210         return NULL;
 211 }
 212
 213
 214 /**
 215  * set_network_properties - Set properties of a configured network
 216  * @message: Pointer to incoming dbus message
 217  * @wpa_s: wpa_supplicant structure for a network interface
 218  * @ssid: wpa_ssid structure for a configured network
 219  * @iter: DBus message iterator containing dictionary of network
 220  * properties to set.
 221  * Returns: NULL when succeed or DBus error on failure
 222  *
 223  * Sets network configuration with parameters given id DBus dictionary
 224  */
 225 static DBusMessage * set_network_properties(DBusMessage *message,
 226                                             struct wpa_supplicant *wpa_s,
 227                                             struct wpa_ssid *ssid,
 228                                             DBusMessageIter *iter)
 229 {
 230
 231         struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
 232         DBusMessage *reply = NULL;
 233         DBusMessageIter iter_dict;
 234
 235         if (!wpa_dbus_dict_open_read(iter, &iter_dict))
 236                 return wpas_dbus_error_invalid_args(message, NULL);
 237
 238         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 239                 char *value = NULL;
 240                 size_t size = 50;
 241                 int ret;
 242                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
 243                         reply = wpas_dbus_error_invalid_args(message, NULL);
 244                         break;
 245                 }
 246                 if (entry.type == DBUS_TYPE_ARRAY &&
 247                     entry.array_type == DBUS_TYPE_BYTE) {
 248                         if (entry.array_len <= 0)
 249                                 goto error;
 250
 251                         size = entry.array_len * 2 + 1;
 252                         value = os_zalloc(size);
 253                         if (value == NULL)
 254                                 goto error;
 255
 256                         ret = wpa_snprintf_hex(value, size,
 257                                                (u8 *) entry.bytearray_value,
 258                                                entry.array_len);
 259                         if (ret <= 0)
 260                                 goto error;
 261                 } else if (entry.type == DBUS_TYPE_STRING) {
 262                         if (should_quote_opt(entry.key)) {
 263                                 size = os_strlen(entry.str_value);
 264                                 if (size <= 0)
 265                                         goto error;
 266
 267                                 size += 3;
 268                                 value = os_zalloc(size);
 269                                 if (value == NULL)
 270                                         goto error;
 271
 272                                 ret = os_snprintf(value, size, "\"%s\"",
 273                                                   entry.str_value);
 274                                 if (ret < 0 || (size_t) ret != (size - 1))
 275                                         goto error;
 276                         } else {
 277                                 value = os_strdup(entry.str_value);
 278                                 if (value == NULL)
 279                                         goto error;
 280                         }
 281                 } else if (entry.type == DBUS_TYPE_UINT32) {
 282                         value = os_zalloc(size);
 283                         if (value == NULL)
 284                                 goto error;
 285
 286                         ret = os_snprintf(value, size, "%u",
 287                                           entry.uint32_value);
 288                         if (ret <= 0)
 289                                 goto error;
 290                 } else if (entry.type == DBUS_TYPE_INT32) {
 291                         value = os_zalloc(size);
 292                         if (value == NULL)
 293                                 goto error;
 294
 295                         ret = os_snprintf(value, size, "%d",
 296                                           entry.int32_value);
 297                         if (ret <= 0)
 298                                 goto error;
 299                 } else
 300                         goto error;
 301
 302                 if (wpa_config_set(ssid, entry.key, value, 0) < 0)
 303                         goto error;
 304
 305                 if ((os_strcmp(entry.key, "psk") == 0 &&
 306                      value[0] == '"' && ssid->ssid_len) ||
 307                     (strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
 308                         wpa_config_update_psk(ssid);
 309                 else if (os_strcmp(entry.key, "priority") == 0)
 310                         wpa_config_update_prio_list(wpa_s->conf);
 311
 312                 os_free(value);
 313                 wpa_dbus_dict_entry_clear(&entry);
 314                 continue;
 315
 316         error:
 317                 os_free(value);
 318                 reply = wpas_dbus_error_invalid_args(message, entry.key);
 319                 wpa_dbus_dict_entry_clear(&entry);
 320                 break;
 321         }
 322
 323         return reply;
 324 }
 325
 326
 327 /**
 328  * wpas_dbus_simple_property_getter - Get basic type property
 329  * @message: Pointer to incoming dbus message
 330  * @type: DBus type of property (must be basic type)
 331  * @val: pointer to place holding property value
 332  * Returns: The DBus message containing response for Properties.Get call
 333  * or DBus error message if error occurred.
 334  *
 335  * Generic getter for basic type properties. Type is required to be basic.
 336  */
 337 DBusMessage * wpas_dbus_simple_property_getter(DBusMessage *message,
 338                                                const int type, const void *val)
 339 {
 340         DBusMessage *reply = NULL;
 341         DBusMessageIter iter, variant_iter;
 342
 343         if (!dbus_type_is_basic(type)) {
 344                 wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_getter:"
 345                            " given type is not basic");
 346                 return wpas_dbus_error_unknown_error(message, NULL);
 347         }
 348
 349         if (message == NULL)
 350                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
 351         else
 352                 reply = dbus_message_new_method_return(message);
 353
 354         if (reply != NULL) {
 355                 dbus_message_iter_init_append(reply, &iter);
 356                 if (!dbus_message_iter_open_container(
 357                             &iter, DBUS_TYPE_VARIANT,
 358                             wpa_dbus_type_as_string(type), &variant_iter) ||
 359                     !dbus_message_iter_append_basic(&variant_iter, type,
 360                                                     val) ||
 361                     !dbus_message_iter_close_container(&iter, &variant_iter)) {
 362                         wpa_printf(MSG_ERROR, "dbus: "
 363                                    "wpas_dbus_simple_property_getter: out of "
 364                                    "memory to put property value into "
 365                                    "message");
 366                         dbus_message_unref(reply);
 367                         reply = dbus_message_new_error(message,
 368                                                        DBUS_ERROR_NO_MEMORY,
 369                                                        NULL);
 370                 }
 371         } else {
 372                 wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_getter:"
 373                            " out of memory to return property value");
 374                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 375                                                NULL);
 376         }
 377
 378         return reply;
 379 }
 380
 381
 382 /**
 383  * wpas_dbus_simple_property_setter - Set basic type property
 384  * @message: Pointer to incoming dbus message
 385  * @type: DBus type of property (must be basic type)
 386  * @val: pointer to place where value being set will be stored
 387  * Returns: NULL or DBus error message if error occurred.
 388  *
 389  * Generic setter for basic type properties. Type is required to be basic.
 390  */
 391 DBusMessage * wpas_dbus_simple_property_setter(DBusMessage *message,
 392                                                const int type, void *val)
 393 {
 394         DBusMessageIter iter, variant_iter;
 395
 396         if (!dbus_type_is_basic(type)) {
 397                 wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_setter:"
 398                            " given type is not basic");
 399                 return wpas_dbus_error_unknown_error(message, NULL);
 400         }
 401
 402         if (!dbus_message_iter_init(message, &iter)) {
 403                 wpa_printf(MSG_ERROR, "dbus: wpas_dbus_simple_property_setter:"
 404                            " out of memory to return scanning state");
 405                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 406                                               NULL);
 407         }
 408
 409         /* omit first and second argument and get value from third */
 410         dbus_message_iter_next(&iter);
 411         dbus_message_iter_next(&iter);
 412         dbus_message_iter_recurse(&iter, &variant_iter);
 413
 414         if (dbus_message_iter_get_arg_type(&variant_iter) != type) {
 415                 wpa_printf(MSG_DEBUG, "dbus: wpas_dbus_simple_property_setter:"
 416                            " wrong property type");
 417                 return wpas_dbus_error_invalid_args(message,
 418                                                     "wrong property type");
 419         }
 420         dbus_message_iter_get_basic(&variant_iter, val);
 421
 422         return NULL;
 423 }
 424
 425
 426 /**
 427  * wpas_dbus_simple_array_property_getter - Get array type property
 428  * @message: Pointer to incoming dbus message
 429  * @type: DBus type of property array elements (must be basic type)
 430  * @array: pointer to array of elements to put into response message
 431  * @array_len: length of above array
 432  * Returns: The DBus message containing response for Properties.Get call
 433  * or DBus error message if error occurred.
 434  *
 435  * Generic getter for array type properties. Array elements type is
 436  * required to be basic.
 437  */
 438 DBusMessage * wpas_dbus_simple_array_property_getter(DBusMessage *message,
 439                                                      const int type,
 440                                                      const void *array,
 441                                                      size_t array_len)
 442 {
 443         DBusMessage *reply = NULL;
 444         DBusMessageIter iter, variant_iter, array_iter;
 445         char type_str[] = "a?"; /* ? will be replaced with subtype letter; */
 446         const char *sub_type_str;
 447         size_t element_size, i;
 448
 449         if (!dbus_type_is_basic(type)) {
 450                 wpa_printf(MSG_ERROR, "dbus: "
 451                            "wpas_dbus_simple_array_property_getter: given "
 452                            "type is not basic");
 453                 return wpas_dbus_error_unknown_error(message, NULL);
 454         }
 455
 456         sub_type_str = wpa_dbus_type_as_string(type);
 457         type_str[1] = sub_type_str[0];
 458
 459         if (message == NULL)
 460                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
 461         else
 462                 reply = dbus_message_new_method_return(message);
 463         if (reply == NULL) {
 464                 wpa_printf(MSG_ERROR, "dbus: "
 465                            "wpas_dbus_simple_array_property_getter: out of "
 466                            "memory to create return message");
 467                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 468                                               NULL);
 469         }
 470
 471         dbus_message_iter_init_append(reply, &iter);
 472
 473         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
 474                                               type_str, &variant_iter) ||
 475             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
 476                                               sub_type_str, &array_iter)) {
 477                 wpa_printf(MSG_ERROR, "dbus: "
 478                            "wpas_dbus_simple_array_property_getter: out of "
 479                            "memory to open container");
 480                 dbus_message_unref(reply);
 481                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 482                                               NULL);
 483         }
 484
 485         switch(type) {
 486         case DBUS_TYPE_BYTE:
 487         case DBUS_TYPE_BOOLEAN:
 488                 element_size = 1;
 489                 break;
 490         case DBUS_TYPE_INT16:
 491         case DBUS_TYPE_UINT16:
 492                 element_size = sizeof(uint16_t);
 493                 break;
 494         case DBUS_TYPE_INT32:
 495         case DBUS_TYPE_UINT32:
 496                 element_size = sizeof(uint32_t);
 497                 break;
 498         case DBUS_TYPE_INT64:
 499         case DBUS_TYPE_UINT64:
 500                 element_size = sizeof(uint64_t);
 501                 break;
 502         case DBUS_TYPE_DOUBLE:
 503                 element_size = sizeof(double);
 504                 break;
 505         case DBUS_TYPE_STRING:
 506         case DBUS_TYPE_OBJECT_PATH:
 507                 element_size = sizeof(char *);
 508                 break;
 509         default:
 510                 wpa_printf(MSG_ERROR, "dbus: "
 511                            "wpas_dbus_simple_array_property_getter: "
 512                            "fatal: unknown element type");
 513                 element_size = 1;
 514                 break;
 515         }
 516
 517         for (i = 0; i < array_len; i++) {
 518                 dbus_message_iter_append_basic(&array_iter, type,
 519                                                array + i * element_size);
 520         }
 521
 522         if (!dbus_message_iter_close_container(&variant_iter, &array_iter) ||
 523             !dbus_message_iter_close_container(&iter, &variant_iter)) {
 524                 wpa_printf(MSG_ERROR, "dbus: "
 525                            "wpas_dbus_simple_array_property_getter: out of "
 526                            "memory to close container");
 527                 dbus_message_unref(reply);
 528                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 529                                               NULL);
 530         }
 531
 532         return reply;
 533 }
 534
 535
 536 /**
 537  * wpas_dbus_handler_create_interface - Request registration of a network iface
 538  * @message: Pointer to incoming dbus message
 539  * @global: %wpa_supplicant global data structure
 540  * Returns: The object path of the new interface object,
 541  *          or a dbus error message with more information
 542  *
 543  * Handler function for "CreateInterface" method call. Handles requests
 544  * by dbus clients to register a network interface that wpa_supplicant
 545  * will manage.
 546  */
 547 DBusMessage * wpas_dbus_handler_create_interface(DBusMessage *message,
 548                                                  struct wpa_global *global)
 549 {
 550         DBusMessageIter iter_dict;
 551         DBusMessage *reply = NULL;
 552         DBusMessageIter iter;
 553         struct wpa_dbus_dict_entry entry;
 554         char *driver = NULL;
 555         char *ifname = NULL;
 556         char *bridge_ifname = NULL;
 557
 558         dbus_message_iter_init(message, &iter);
 559
 560         if (!wpa_dbus_dict_open_read(&iter, &iter_dict))
 561                 goto error;
 562         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 563                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
 564                         goto error;
 565                 if (!strcmp(entry.key, "Driver") &&
 566                     (entry.type == DBUS_TYPE_STRING)) {
 567                         driver = os_strdup(entry.str_value);
 568                         wpa_dbus_dict_entry_clear(&entry);
 569                         if (driver == NULL)
 570                                 goto error;
 571                 } else if (!strcmp(entry.key, "Ifname") &&
 572                            (entry.type == DBUS_TYPE_STRING)) {
 573                         ifname = os_strdup(entry.str_value);
 574                         wpa_dbus_dict_entry_clear(&entry);
 575                         if (ifname == NULL)
 576                                 goto error;
 577                 } else if (!strcmp(entry.key, "BridgeIfname") &&
 578                            (entry.type == DBUS_TYPE_STRING)) {
 579                         bridge_ifname = os_strdup(entry.str_value);
 580                         wpa_dbus_dict_entry_clear(&entry);
 581                         if (bridge_ifname == NULL)
 582                                 goto error;
 583                 } else {
 584                         wpa_dbus_dict_entry_clear(&entry);
 585                         goto error;
 586                 }
 587         }
 588
 589         if (ifname == NULL)
 590                 goto error; /* Required Ifname argument missing */
 591
 592         /*
 593          * Try to get the wpa_supplicant record for this iface, return
 594          * an error if we already control it.
 595          */
 596         if (wpa_supplicant_get_iface(global, ifname) != NULL) {
 597                 reply = dbus_message_new_error(message,
 598                                                WPAS_DBUS_ERROR_IFACE_EXISTS,
 599                                                "wpa_supplicant already "
 600                                                "controls this interface.");
 601         } else {
 602                 struct wpa_supplicant *wpa_s;
 603                 struct wpa_interface iface;
 604                 os_memset(&iface, 0, sizeof(iface));
 605                 iface.driver = driver;
 606                 iface.ifname = ifname;
 607                 iface.bridge_ifname = bridge_ifname;
 608                 /* Otherwise, have wpa_supplicant attach to it. */
 609                 if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
 610                         const char *path = wpa_s->dbus_new_path;
 611                         reply = dbus_message_new_method_return(message);
 612                         dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
 613                                                  &path, DBUS_TYPE_INVALID);
 614                 } else {
 615                         reply = wpas_dbus_error_unknown_error(
 616                                 message, "wpa_supplicant couldn't grab this "
 617                                 "interface.");
 618                 }
 619         }
 620
 621 out:
 622         os_free(driver);
 623         os_free(ifname);
 624         os_free(bridge_ifname);
 625         return reply;
 626
 627 error:
 628         reply = wpas_dbus_error_invalid_args(message, NULL);
 629         goto out;
 630 }
 631
 632
 633 /**
 634  * wpas_dbus_handler_remove_interface - Request deregistration of an interface
 635  * @message: Pointer to incoming dbus message
 636  * @global: wpa_supplicant global data structure
 637  * Returns: a dbus message containing a UINT32 indicating success (1) or
 638  *          failure (0), or returns a dbus error message with more information
 639  *
 640  * Handler function for "removeInterface" method call.  Handles requests
 641  * by dbus clients to deregister a network interface that wpa_supplicant
 642  * currently manages.
 643  */
 644 DBusMessage * wpas_dbus_handler_remove_interface(DBusMessage *message,
 645                                                  struct wpa_global *global)
 646 {
 647         struct wpa_supplicant *wpa_s;
 648         char *path;
 649         DBusMessage *reply = NULL;
 650
 651         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 652                               DBUS_TYPE_INVALID);
 653
 654         wpa_s = get_iface_by_dbus_path(global, path);
 655         if (wpa_s == NULL)
 656                 reply = wpas_dbus_error_iface_unknown(message);
 657         else if (wpa_supplicant_remove_iface(global, wpa_s)) {
 658                 reply = wpas_dbus_error_unknown_error(
 659                         message, "wpa_supplicant couldn't remove this "
 660                         "interface.");
 661         }
 662
 663         return reply;
 664 }
 665
 666
 667 /**
 668  * wpas_dbus_handler_get_interface - Get the object path for an interface name
 669  * @message: Pointer to incoming dbus message
 670  * @global: %wpa_supplicant global data structure
 671  * Returns: The object path of the interface object,
 672  *          or a dbus error message with more information
 673  *
 674  * Handler function for "getInterface" method call.
 675  */
 676 DBusMessage * wpas_dbus_handler_get_interface(DBusMessage *message,
 677                                               struct wpa_global *global)
 678 {
 679         DBusMessage *reply = NULL;
 680         const char *ifname;
 681         const char *path;
 682         struct wpa_supplicant *wpa_s;
 683
 684         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &ifname,
 685                               DBUS_TYPE_INVALID);
 686
 687         wpa_s = wpa_supplicant_get_iface(global, ifname);
 688         if (wpa_s == NULL)
 689                 return wpas_dbus_error_iface_unknown(message);
 690
 691         path = wpa_s->dbus_new_path;
 692         reply = dbus_message_new_method_return(message);
 693         if (reply == NULL)
 694                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 695                                               NULL);
 696         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
 697                                       DBUS_TYPE_INVALID)) {
 698                 dbus_message_unref(reply);
 699                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 700                                               NULL);
 701         }
 702
 703         return reply;
 704 }
 705
 706
 707 /**
 708  * wpas_dbus_getter_debug_level - Get debug level
 709  * @message: Pointer to incoming dbus message
 710  * @global: %wpa_supplicant global data structure
 711  * Returns: DBus message with value of debug level
 712  *
 713  * Getter for "DebugLevel" property.
 714  */
 715 DBusMessage * wpas_dbus_getter_debug_level(DBusMessage *message,
 716                                            struct wpa_global *global)
 717 {
 718         const char *str;
 719         int idx = wpa_debug_level;
 720         if (idx < 0)
 721                 idx = 0;
 722         if (idx > 4)
 723                 idx = 4;
 724         str = debug_strings[idx];
 725         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
 726                                                 &str);
 727 }
 728
 729
 730 /**
 731  * wpas_dbus_getter_debug_timestamp - Get debug timestamp
 732  * @message: Pointer to incoming dbus message
 733  * @global: %wpa_supplicant global data structure
 734  * Returns: DBus message with value of debug timestamp
 735  *
 736  * Getter for "DebugTimestamp" property.
 737  */
 738 DBusMessage * wpas_dbus_getter_debug_timestamp(DBusMessage *message,
 739                                                struct wpa_global *global)
 740 {
 741         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
 742                                                 &wpa_debug_timestamp);
 743
 744 }
 745
 746
 747 /**
 748  * wpas_dbus_getter_debug_show_keys - Get debug show keys
 749  * @message: Pointer to incoming dbus message
 750  * @global: %wpa_supplicant global data structure
 751  * Returns: DBus message with value of debug show_keys
 752  *
 753  * Getter for "DebugShowKeys" property.
 754  */
 755 DBusMessage * wpas_dbus_getter_debug_show_keys(DBusMessage *message,
 756                                                struct wpa_global *global)
 757 {
 758         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
 759                                                 &wpa_debug_show_keys);
 760
 761 }
 762
 763 /**
 764  * wpas_dbus_setter_debug_level - Set debug level
 765  * @message: Pointer to incoming dbus message
 766  * @global: %wpa_supplicant global data structure
 767  * Returns: %NULL or DBus error message
 768  *
 769  * Setter for "DebugLevel" property.
 770  */
 771 DBusMessage * wpas_dbus_setter_debug_level(DBusMessage *message,
 772                                            struct wpa_global *global)
 773 {
 774         DBusMessage *reply;
 775         const char *str = NULL;
 776         int i, val = -1;
 777
 778         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_STRING,
 779                                                  &str);
 780         if (reply)
 781                 return reply;
 782
 783         for (i = 0; debug_strings[i]; i++)
 784                 if (os_strcmp(debug_strings[i], str) == 0) {
 785                         val = i;
 786                         break;
 787                 }
 788
 789         if (val < 0 ||
 790             wpa_supplicant_set_debug_params(global, val, wpa_debug_timestamp,
 791                                             wpa_debug_show_keys)) {
 792                 dbus_message_unref(reply);
 793                 return wpas_dbus_error_invalid_args(
 794                         message, "Wrong debug level value");
 795         }
 796
 797         return NULL;
 798 }
 799
 800
 801 /**
 802  * wpas_dbus_setter_debug_timestamp - Set debug timestamp
 803  * @message: Pointer to incoming dbus message
 804  * @global: %wpa_supplicant global data structure
 805  * Returns: %NULL or DBus error message
 806  *
 807  * Setter for "DebugTimestamp" property.
 808  */
 809 DBusMessage * wpas_dbus_setter_debug_timestamp(DBusMessage *message,
 810                                                struct wpa_global *global)
 811 {
 812         DBusMessage *reply;
 813         dbus_bool_t val;
 814
 815         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
 816                                                  &val);
 817         if (reply)
 818                 return reply;
 819
 820         wpa_supplicant_set_debug_params(global, wpa_debug_level, val ? 1 : 0,
 821                                         wpa_debug_show_keys);
 822
 823         return NULL;
 824 }
 825
 826
 827 /**
 828  * wpas_dbus_setter_debug_show_keys - Set debug show keys
 829  * @message: Pointer to incoming dbus message
 830  * @global: %wpa_supplicant global data structure
 831  * Returns: %NULL or DBus error message
 832  *
 833  * Setter for "DebugShowKeys" property.
 834  */
 835 DBusMessage * wpas_dbus_setter_debug_show_keys(DBusMessage *message,
 836                                                struct wpa_global *global)
 837 {
 838         DBusMessage *reply;
 839         dbus_bool_t val;
 840
 841         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
 842                                                  &val);
 843         if (reply)
 844                 return reply;
 845
 846         wpa_supplicant_set_debug_params(global, wpa_debug_level,
 847                                         wpa_debug_timestamp,
 848                                         val ? 1 : 0);
 849
 850         return NULL;
 851 }
 852
 853
 854 /**
 855  * wpas_dbus_getter_interfaces - Request registered interfaces list
 856  * @message: Pointer to incoming dbus message
 857  * @global: %wpa_supplicant global data structure
 858  * Returns: The object paths array containing registered interfaces
 859  * objects paths or DBus error on failure
 860  *
 861  * Getter for "Interfaces" property. Handles requests
 862  * by dbus clients to return list of registered interfaces objects
 863  * paths
 864  */
 865 DBusMessage * wpas_dbus_getter_interfaces(DBusMessage *message,
 866                                           struct wpa_global *global)
 867 {
 868         DBusMessage *reply = NULL;
 869         struct wpa_supplicant *wpa_s;
 870         const char **paths;
 871         unsigned int i = 0, num = 0;
 872
 873         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
 874                 num++;
 875
 876         paths = os_zalloc(num * sizeof(char*));
 877         if (!paths) {
 878                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 879                                               NULL);
 880         }
 881
 882         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next)
 883                 paths[i] = wpa_s->dbus_new_path;
 884
 885         reply = wpas_dbus_simple_array_property_getter(message,
 886                                                        DBUS_TYPE_OBJECT_PATH,
 887                                                        paths, num);
 888
 889         os_free(paths);
 890         return reply;
 891 }
 892
 893
 894 /**
 895  * wpas_dbus_getter_eap_methods - Request supported EAP methods list
 896  * @message: Pointer to incoming dbus message
 897  * @nothing: not used argument. may be NULL or anything else
 898  * Returns: The object paths array containing supported EAP methods
 899  * represented by strings or DBus error on failure
 900  *
 901  * Getter for "EapMethods" property. Handles requests
 902  * by dbus clients to return list of strings with supported EAP methods
 903  */
 904 DBusMessage * wpas_dbus_getter_eap_methods(DBusMessage *message, void *nothing)
 905 {
 906         DBusMessage *reply = NULL;
 907         char **eap_methods;
 908         size_t num_items = 0;
 909
 910         eap_methods = eap_get_names_as_string_array(&num_items);
 911         if (!eap_methods) {
 912                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
 913                                               NULL);
 914         }
 915
 916         reply = wpas_dbus_simple_array_property_getter(message,
 917                                                        DBUS_TYPE_STRING,
 918                                                        eap_methods, num_items);
 919
 920         while (num_items)
 921                 os_free(eap_methods[--num_items]);
 922         os_free(eap_methods);
 923         return reply;
 924 }
 925
 926
 927 static int wpas_dbus_get_scan_type(DBusMessage *message, DBusMessageIter *var,
 928                                    char **type, DBusMessage **reply)
 929 {
 930         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_STRING) {
 931                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
 932                            "Type must be a string");
 933                 *reply = wpas_dbus_error_invalid_args(
 934                         message, "Wrong Type value type. String required");
 935                 return -1;
 936         }
 937         dbus_message_iter_get_basic(var, type);
 938         return 0;
 939 }
 940
 941
 942 static int wpas_dbus_get_scan_ssids(DBusMessage *message, DBusMessageIter *var,
 943                                     struct wpa_driver_scan_params *params,
 944                                     DBusMessage **reply)
 945 {
 946         struct wpa_driver_scan_ssid *ssids = params->ssids;
 947         size_t ssids_num = 0;
 948         u8 *ssid;
 949         DBusMessageIter array_iter, sub_array_iter;
 950         char *val;
 951         int len;
 952
 953         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
 954                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ssids "
 955                            "must be an array of arrays of bytes");
 956                 *reply = wpas_dbus_error_invalid_args(
 957                         message, "Wrong SSIDs value type. Array of arrays of "
 958                         "bytes required");
 959                 return -1;
 960         }
 961
 962         dbus_message_iter_recurse(var, &array_iter);
 963
 964         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
 965             dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE)
 966         {
 967                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ssids "
 968                            "must be an array of arrays of bytes");
 969                 *reply = wpas_dbus_error_invalid_args(
 970                         message, "Wrong SSIDs value type. Array of arrays of "
 971                         "bytes required");
 972                 return -1;
 973         }
 974
 975         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY)
 976         {
 977                 if (ssids_num >= WPAS_MAX_SCAN_SSIDS) {
 978                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
 979                                    "Too many ssids specified on scan dbus "
 980                                    "call");
 981                         *reply = wpas_dbus_error_invalid_args(
 982                                 message, "Too many ssids specified. Specify "
 983                                 "at most four");
 984                         return -1;
 985                 }
 986
 987                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
 988
 989                 dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
 990                 if (len == 0) {
 991                         dbus_message_iter_next(&array_iter);
 992                         continue;
 993                 }
 994
 995                 ssid = os_malloc(len);
 996                 if (ssid == NULL) {
 997                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
 998                                    "out of memory. Cannot allocate memory for "
 999                                    "SSID");
1000                         *reply = dbus_message_new_error(
1001                                 message, DBUS_ERROR_NO_MEMORY, NULL);
1002                         return -1;
1003                 }
1004                 os_memcpy(ssid, val, len);
1005                 ssids[ssids_num].ssid = ssid;
1006                 ssids[ssids_num].ssid_len = len;
1007
1008                 dbus_message_iter_next(&array_iter);
1009                 ssids_num++;
1010         }
1011
1012         params->num_ssids = ssids_num;
1013         return 0;
1014 }
1015
1016
1017 static int wpas_dbus_get_scan_ies(DBusMessage *message, DBusMessageIter *var,
1018                                   struct wpa_driver_scan_params *params,
1019                                   DBusMessage **reply)
1020 {
1021         u8 *ies = NULL, *nies;
1022         int ies_len = 0;
1023         DBusMessageIter array_iter, sub_array_iter;
1024         char *val;
1025         int len;
1026
1027         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
1028                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ies must "
1029                            "be an array of arrays of bytes");
1030                 *reply = wpas_dbus_error_invalid_args(
1031                         message, "Wrong IEs value type. Array of arrays of "
1032                         "bytes required");
1033                 return -1;
1034         }
1035
1036         dbus_message_iter_recurse(var, &array_iter);
1037
1038         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_ARRAY ||
1039             dbus_message_iter_get_element_type(&array_iter) != DBUS_TYPE_BYTE)
1040         {
1041                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: ies must "
1042                            "be an array of arrays of bytes");
1043                 *reply = wpas_dbus_error_invalid_args(
1044                         message, "Wrong IEs value type. Array required");
1045                 return -1;
1046         }
1047
1048         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_ARRAY)
1049         {
1050                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
1051
1052                 dbus_message_iter_get_fixed_array(&sub_array_iter, &val, &len);
1053                 if (len == 0) {
1054                         dbus_message_iter_next(&array_iter);
1055                         continue;
1056                 }
1057
1058                 nies = os_realloc(ies, ies_len + len);
1059                 if (nies == NULL) {
1060                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1061                                    "out of memory. Cannot allocate memory for "
1062                                    "IE");
1063                         os_free(ies);
1064                         *reply = dbus_message_new_error(
1065                                 message, DBUS_ERROR_NO_MEMORY, NULL);
1066                         return -1;
1067                 }
1068                 ies = nies;
1069                 os_memcpy(ies + ies_len, val, len);
1070                 ies_len += len;
1071
1072                 dbus_message_iter_next(&array_iter);
1073         }
1074
1075         params->extra_ies = ies;
1076         params->extra_ies_len = ies_len;
1077         return 0;
1078 }
1079
1080
1081 static int wpas_dbus_get_scan_channels(DBusMessage *message,
1082                                        DBusMessageIter *var,
1083                                        struct wpa_driver_scan_params *params,
1084                                        DBusMessage **reply)
1085 {
1086         DBusMessageIter array_iter, sub_array_iter;
1087         int *freqs = NULL, *nfreqs;
1088         int freqs_num = 0;
1089
1090         if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_ARRAY) {
1091                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1092                            "Channels must be an array of structs");
1093                 *reply = wpas_dbus_error_invalid_args(
1094                         message, "Wrong Channels value type. Array of structs "
1095                         "required");
1096                 return -1;
1097         }
1098
1099         dbus_message_iter_recurse(var, &array_iter);
1100
1101         if (dbus_message_iter_get_arg_type(&array_iter) != DBUS_TYPE_STRUCT) {
1102                 wpa_printf(MSG_DEBUG,
1103                            "wpas_dbus_handler_scan[dbus]: Channels must be an "
1104                            "array of structs");
1105                 *reply = wpas_dbus_error_invalid_args(
1106                         message, "Wrong Channels value type. Array of structs "
1107                         "required");
1108                 return -1;
1109         }
1110
1111         while (dbus_message_iter_get_arg_type(&array_iter) == DBUS_TYPE_STRUCT)
1112         {
1113                 int freq, width;
1114
1115                 dbus_message_iter_recurse(&array_iter, &sub_array_iter);
1116
1117                 if (dbus_message_iter_get_arg_type(&sub_array_iter) !=
1118                     DBUS_TYPE_UINT32) {
1119                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1120                                    "Channel must by specified by struct of "
1121                                    "two UINT32s %c",
1122                                    dbus_message_iter_get_arg_type(
1123                                            &sub_array_iter));
1124                         *reply = wpas_dbus_error_invalid_args(
1125                                 message, "Wrong Channel struct. Two UINT32s "
1126                                 "required");
1127                         os_free(freqs);
1128                         return -1;
1129                 }
1130                 dbus_message_iter_get_basic(&sub_array_iter, &freq);
1131
1132                 if (!dbus_message_iter_next(&sub_array_iter) ||
1133                     dbus_message_iter_get_arg_type(&sub_array_iter) !=
1134                     DBUS_TYPE_UINT32) {
1135                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1136                                    "Channel must by specified by struct of "
1137                                    "two UINT32s");
1138                         *reply = wpas_dbus_error_invalid_args(
1139                                 message,
1140                                 "Wrong Channel struct. Two UINT32s required");
1141                         os_free(freqs);
1142                         return -1;
1143                 }
1144
1145                 dbus_message_iter_get_basic(&sub_array_iter, &width);
1146
1147 #define FREQS_ALLOC_CHUNK 32
1148                 if (freqs_num % FREQS_ALLOC_CHUNK == 0) {
1149                         nfreqs = os_realloc(freqs, sizeof(int) *
1150                                             (freqs_num + FREQS_ALLOC_CHUNK));
1151                         if (nfreqs == NULL)
1152                                 os_free(freqs);
1153                         freqs = nfreqs;
1154                 }
1155                 if (freqs == NULL) {
1156                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1157                                    "out of memory. can't allocate memory for "
1158                                    "freqs");
1159                         *reply = dbus_message_new_error(
1160                                 message, DBUS_ERROR_NO_MEMORY, NULL);
1161                         return -1;
1162                 }
1163
1164                 freqs[freqs_num] = freq;
1165
1166                 freqs_num++;
1167                 dbus_message_iter_next(&array_iter);
1168         }
1169
1170         nfreqs = os_realloc(freqs,
1171                             sizeof(int) * (freqs_num + 1));
1172         if (nfreqs == NULL)
1173                 os_free(freqs);
1174         freqs = nfreqs;
1175         if (freqs == NULL) {
1176                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1177                            "out of memory. Can't allocate memory for freqs");
1178                 *reply = dbus_message_new_error(
1179                         message, DBUS_ERROR_NO_MEMORY, NULL);
1180                 return -1;
1181         }
1182         freqs[freqs_num] = 0;
1183
1184         params->freqs = freqs;
1185         return 0;
1186 }
1187
1188
1189 /**
1190  * wpas_dbus_handler_scan - Request a wireless scan on an interface
1191  * @message: Pointer to incoming dbus message
1192  * @wpa_s: wpa_supplicant structure for a network interface
1193  * Returns: NULL indicating success or DBus error message on failure
1194  *
1195  * Handler function for "Scan" method call of a network device. Requests
1196  * that wpa_supplicant perform a wireless scan as soon as possible
1197  * on a particular wireless interface.
1198  */
1199 DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
1200                                      struct wpa_supplicant *wpa_s)
1201 {
1202         DBusMessage *reply = NULL;
1203         DBusMessageIter iter, dict_iter, entry_iter, variant_iter;
1204         char *key = NULL, *type = NULL;
1205         struct wpa_driver_scan_params params;
1206         size_t i;
1207
1208         os_memset(&params, 0, sizeof(params));
1209
1210         dbus_message_iter_init(message, &iter);
1211
1212         dbus_message_iter_recurse(&iter, &dict_iter);
1213
1214         while (dbus_message_iter_get_arg_type(&dict_iter) ==
1215                         DBUS_TYPE_DICT_ENTRY) {
1216                 dbus_message_iter_recurse(&dict_iter, &entry_iter);
1217                 dbus_message_iter_get_basic(&entry_iter, &key);
1218                 dbus_message_iter_next(&entry_iter);
1219                 dbus_message_iter_recurse(&entry_iter, &variant_iter);
1220
1221                 if (os_strcmp(key, "Type") == 0) {
1222                         if (wpas_dbus_get_scan_type(message, &variant_iter,
1223                                                     &type, &reply) < 0)
1224                                 goto out;
1225                 } else if (os_strcmp(key, "SSIDs") == 0) {
1226                         if (wpas_dbus_get_scan_ssids(message, &variant_iter,
1227                                                      &params, &reply) < 0)
1228                                 goto out;
1229                 } else if (os_strcmp(key, "IEs") == 0) {
1230                         if (wpas_dbus_get_scan_ies(message, &variant_iter,
1231                                                    &params, &reply) < 0)
1232                                 goto out;
1233                 } else if (os_strcmp(key, "Channels") == 0) {
1234                         if (wpas_dbus_get_scan_channels(message, &variant_iter,
1235                                                         &params, &reply) < 0)
1236                                 goto out;
1237                 } else {
1238                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1239                                    "Unknown argument %s", key);
1240                         reply = wpas_dbus_error_invalid_args(message, key);
1241                         goto out;
1242                 }
1243
1244                 dbus_message_iter_next(&dict_iter);
1245         }
1246
1247         if (!type) {
1248                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1249                            "Scan type not specified");
1250                 reply = wpas_dbus_error_invalid_args(message, key);
1251                 goto out;
1252         }
1253
1254         if (!os_strcmp(type, "passive")) {
1255                 if (params.num_ssids || params.extra_ies_len) {
1256                         wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1257                                    "SSIDs or IEs specified for passive scan.");
1258                         reply = wpas_dbus_error_invalid_args(
1259                                 message, "You can specify only Channels in "
1260                                 "passive scan");
1261                         goto out;
1262                 } else if (params.freqs && params.freqs[0]) {
1263                         wpa_supplicant_trigger_scan(wpa_s, &params);
1264                 } else {
1265                         wpa_s->scan_req = 2;
1266                         wpa_supplicant_req_scan(wpa_s, 0, 0);
1267                 }
1268         } else if (!os_strcmp(type, "active")) {
1269                 if (!params.num_ssids) {
1270                         /* Add wildcard ssid */
1271                         params.num_ssids++;
1272                 }
1273                 wpa_supplicant_trigger_scan(wpa_s, &params);
1274         } else {
1275                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1276                            "Unknown scan type: %s", type);
1277                 reply = wpas_dbus_error_invalid_args(message,
1278                                                      "Wrong scan type");
1279                 goto out;
1280         }
1281
1282 out:
1283         for (i = 0; i < WPAS_MAX_SCAN_SSIDS; i++)
1284                 os_free((u8 *) params.ssids[i].ssid);
1285         os_free((u8 *) params.extra_ies);
1286         os_free(params.freqs);
1287         return reply;
1288 }
1289
1290
1291 /*
1292  * wpas_dbus_handler_disconnect - Terminate the current connection
1293  * @message: Pointer to incoming dbus message
1294  * @wpa_s: wpa_supplicant structure for a network interface
1295  * Returns: NotConnected DBus error message if already not connected
1296  * or NULL otherwise.
1297  *
1298  * Handler function for "Disconnect" method call of network interface.
1299  */
1300 DBusMessage * wpas_dbus_handler_disconnect(DBusMessage *message,
1301                                            struct wpa_supplicant *wpa_s)
1302 {
1303         if (wpa_s->current_ssid != NULL) {
1304                 wpa_s->disconnected = 1;
1305                 wpa_supplicant_deauthenticate(wpa_s,
1306                                               WLAN_REASON_DEAUTH_LEAVING);
1307
1308                 return NULL;
1309         }
1310
1311         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1312                                       "This interface is not connected");
1313 }
1314
1315
1316 /**
1317  * wpas_dbus_new_iface_add_network - Add a new configured network
1318  * @message: Pointer to incoming dbus message
1319  * @wpa_s: wpa_supplicant structure for a network interface
1320  * Returns: A dbus message containing the object path of the new network
1321  *
1322  * Handler function for "AddNetwork" method call of a network interface.
1323  */
1324 DBusMessage * wpas_dbus_handler_add_network(DBusMessage *message,
1325                                             struct wpa_supplicant *wpa_s)
1326 {
1327         DBusMessage *reply = NULL;
1328         DBusMessageIter iter;
1329         struct wpa_ssid *ssid = NULL;
1330         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
1331
1332         dbus_message_iter_init(message, &iter);
1333
1334         ssid = wpa_config_add_network(wpa_s->conf);
1335         if (ssid == NULL) {
1336                 wpa_printf(MSG_ERROR, "wpas_dbus_handler_add_network[dbus]: "
1337                            "can't add new interface.");
1338                 reply = wpas_dbus_error_unknown_error(
1339                         message,
1340                         "wpa_supplicant could not add "
1341                         "a network on this interface.");
1342                 goto err;
1343         }
1344         wpas_notify_network_added(wpa_s, ssid);
1345         ssid->disabled = 1;
1346         wpa_config_set_network_defaults(ssid);
1347
1348         reply = set_network_properties(message, wpa_s, ssid, &iter);
1349         if (reply) {
1350                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_add_network[dbus]:"
1351                            "control interface couldn't set network "
1352                            "properties");
1353                 goto err;
1354         }
1355
1356         /* Construct the object path for this network. */
1357         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
1358                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
1359                     wpa_s->dbus_new_path, ssid->id);
1360
1361         reply = dbus_message_new_method_return(message);
1362         if (reply == NULL) {
1363                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1364                                                NULL);
1365                 goto err;
1366         }
1367         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
1368                                       DBUS_TYPE_INVALID)) {
1369                 dbus_message_unref(reply);
1370                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1371                                                NULL);
1372                 goto err;
1373         }
1374
1375         return reply;
1376
1377 err:
1378         if (ssid) {
1379                 wpas_notify_network_removed(wpa_s, ssid);
1380                 wpa_config_remove_network(wpa_s->conf, ssid->id);
1381         }
1382         return reply;
1383 }
1384
1385
1386 /**
1387  * wpas_dbus_handler_remove_network - Remove a configured network
1388  * @message: Pointer to incoming dbus message
1389  * @wpa_s: wpa_supplicant structure for a network interface
1390  * Returns: NULL on success or dbus error on failure
1391  *
1392  * Handler function for "RemoveNetwork" method call of a network interface.
1393  */
1394 DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
1395                                                struct wpa_supplicant *wpa_s)
1396 {
1397         DBusMessage *reply = NULL;
1398         const char *op;
1399         char *iface = NULL, *net_id = NULL;
1400         int id;
1401         struct wpa_ssid *ssid;
1402
1403         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1404                               DBUS_TYPE_INVALID);
1405
1406         /* Extract the network ID and ensure the network */
1407         /* is actually a child of this interface */
1408         iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
1409         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1410                 reply = wpas_dbus_error_invalid_args(message, op);
1411                 goto out;
1412         }
1413
1414         id = strtoul(net_id, NULL, 10);
1415         if (errno == EINVAL) {
1416                 reply = wpas_dbus_error_invalid_args(message, op);
1417                 goto out;
1418         }
1419
1420         ssid = wpa_config_get_network(wpa_s->conf, id);
1421         if (ssid == NULL) {
1422                 reply = wpas_dbus_error_network_unknown(message);
1423                 goto out;
1424         }
1425
1426         wpas_notify_network_removed(wpa_s, ssid);
1427
1428         if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
1429                 wpa_printf(MSG_ERROR,
1430                            "wpas_dbus_handler_remove_network[dbus]: "
1431                            "error occurred when removing network %d", id);
1432                 reply = wpas_dbus_error_unknown_error(
1433                         message, "error removing the specified network on "
1434                         "this interface.");
1435                 goto out;
1436         }
1437
1438         if (ssid == wpa_s->current_ssid)
1439                 wpa_supplicant_deauthenticate(wpa_s,
1440                                               WLAN_REASON_DEAUTH_LEAVING);
1441
1442 out:
1443         os_free(iface);
1444         os_free(net_id);
1445         return reply;
1446 }
1447
1448
1449 /**
1450  * wpas_dbus_handler_select_network - Attempt association with a network
1451  * @message: Pointer to incoming dbus message
1452  * @wpa_s: wpa_supplicant structure for a network interface
1453  * Returns: NULL on success or dbus error on failure
1454  *
1455  * Handler function for "SelectNetwork" method call of network interface.
1456  */
1457 DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
1458                                                struct wpa_supplicant *wpa_s)
1459 {
1460         DBusMessage *reply = NULL;
1461         const char *op;
1462         char *iface = NULL, *net_id = NULL;
1463         int id;
1464         struct wpa_ssid *ssid;
1465
1466         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1467                               DBUS_TYPE_INVALID);
1468
1469         /* Extract the network ID and ensure the network */
1470         /* is actually a child of this interface */
1471         iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
1472         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1473                 reply = wpas_dbus_error_invalid_args(message, op);
1474                 goto out;
1475         }
1476
1477         id = strtoul(net_id, NULL, 10);
1478         if (errno == EINVAL) {
1479                 reply = wpas_dbus_error_invalid_args(message, op);
1480                 goto out;
1481         }
1482
1483         ssid = wpa_config_get_network(wpa_s->conf, id);
1484         if (ssid == NULL) {
1485                 reply = wpas_dbus_error_network_unknown(message);
1486                 goto out;
1487         }
1488
1489         /* Finally, associate with the network */
1490         wpa_supplicant_select_network(wpa_s, ssid);
1491
1492 out:
1493         os_free(iface);
1494         os_free(net_id);
1495         return reply;
1496 }
1497
1498
1499 /**
1500  * wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
1501  * @message: Pointer to incoming dbus message
1502  * @wpa_s: %wpa_supplicant data structure
1503  * Returns: A dbus message containing an error on failure or NULL on success
1504  *
1505  * Asks wpa_supplicant to internally store a binary blobs.
1506  */
1507 DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
1508                                          struct wpa_supplicant *wpa_s)
1509 {
1510         DBusMessage *reply = NULL;
1511         DBusMessageIter iter, array_iter;
1512
1513         char *blob_name;
1514         u8 *blob_data;
1515         int blob_len;
1516         struct wpa_config_blob *blob = NULL;
1517
1518         dbus_message_iter_init(message, &iter);
1519         dbus_message_iter_get_basic(&iter, &blob_name);
1520
1521         if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
1522                 return dbus_message_new_error(message,
1523                                               WPAS_DBUS_ERROR_BLOB_EXISTS,
1524                                               NULL);
1525         }
1526
1527         dbus_message_iter_next(&iter);
1528         dbus_message_iter_recurse(&iter, &array_iter);
1529
1530         dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
1531
1532         blob = os_zalloc(sizeof(*blob));
1533         if (!blob) {
1534                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1535                                                NULL);
1536                 goto err;
1537         }
1538
1539         blob->data = os_malloc(blob_len);
1540         if (!blob->data) {
1541                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1542                                                NULL);
1543                 goto err;
1544         }
1545         os_memcpy(blob->data, blob_data, blob_len);
1546
1547         blob->len = blob_len;
1548         blob->name = os_strdup(blob_name);
1549         if (!blob->name) {
1550                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1551                                                NULL);
1552                 goto err;
1553         }
1554
1555         wpa_config_set_blob(wpa_s->conf, blob);
1556         wpas_notify_blob_added(wpa_s, blob->name);
1557
1558         return reply;
1559
1560 err:
1561         if (blob) {
1562                 os_free(blob->name);
1563                 os_free(blob->data);
1564                 os_free(blob);
1565         }
1566         return reply;
1567 }
1568
1569
1570 /**
1571  * wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
1572  * @message: Pointer to incoming dbus message
1573  * @wpa_s: %wpa_supplicant data structure
1574  * Returns: A dbus message containing array of bytes (blob)
1575  *
1576  * Gets one wpa_supplicant's binary blobs.
1577  */
1578 DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
1579                                          struct wpa_supplicant *wpa_s)
1580 {
1581         DBusMessage *reply = NULL;
1582         DBusMessageIter iter, array_iter;
1583
1584         char *blob_name;
1585         const struct wpa_config_blob *blob;
1586
1587         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1588                               DBUS_TYPE_INVALID);
1589
1590         blob = wpa_config_get_blob(wpa_s->conf, blob_name);
1591         if (!blob) {
1592                 return dbus_message_new_error(message,
1593                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1594                                               "Blob id not set");
1595         }
1596
1597         reply = dbus_message_new_method_return(message);
1598         if (!reply) {
1599                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1600                                                NULL);
1601                 goto out;
1602         }
1603
1604         dbus_message_iter_init_append(reply, &iter);
1605
1606         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
1607                                               DBUS_TYPE_BYTE_AS_STRING,
1608                                               &array_iter)) {
1609                 dbus_message_unref(reply);
1610                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1611                                                NULL);
1612                 goto out;
1613         }
1614
1615         if (!dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
1616                                                   &(blob->data), blob->len)) {
1617                 dbus_message_unref(reply);
1618                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1619                                                NULL);
1620                 goto out;
1621         }
1622
1623         if (!dbus_message_iter_close_container(&iter, &array_iter)) {
1624                 dbus_message_unref(reply);
1625                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1626                                                NULL);
1627                 goto out;
1628         }
1629
1630 out:
1631         return reply;
1632 }
1633
1634
1635 /**
1636  * wpas_remove_handler_remove_blob - Remove named binary blob
1637  * @message: Pointer to incoming dbus message
1638  * @wpa_s: %wpa_supplicant data structure
1639  * Returns: NULL on success or dbus error
1640  *
1641  * Asks wpa_supplicant to internally remove a binary blobs.
1642  */
1643 DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
1644                                             struct wpa_supplicant *wpa_s)
1645 {
1646         DBusMessage *reply = NULL;
1647         char *blob_name;
1648
1649         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1650                               DBUS_TYPE_INVALID);
1651
1652         if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
1653                 return dbus_message_new_error(message,
1654                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1655                                               "Blob id not set");
1656         }
1657         wpas_notify_blob_removed(wpa_s, blob_name);
1658
1659         return reply;
1660
1661 }
1662
1663
1664 /**
1665  * wpas_dbus_getter_capabilities - Return interface capabilities
1666  * @message: Pointer to incoming dbus message
1667  * @wpa_s: wpa_supplicant structure for a network interface
1668  * Returns: A dbus message containing a dict of strings
1669  *
1670  * Getter for "Capabilities" property of an interface.
1671  */
1672 DBusMessage * wpas_dbus_getter_capabilities(DBusMessage *message,
1673                                             struct wpa_supplicant *wpa_s)
1674 {
1675         DBusMessage *reply = NULL;
1676         struct wpa_driver_capa capa;
1677         int res;
1678         DBusMessageIter iter, iter_dict;
1679         DBusMessageIter iter_dict_entry, iter_dict_val, iter_array,
1680                 variant_iter;
1681         const char *scans[] = { "active", "passive", "ssid" };
1682         const char *modes[] = { "infrastructure", "ad-hoc", "ap" };
1683         int n = sizeof(modes) / sizeof(char *);
1684
1685         if (message == NULL)
1686                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
1687         else
1688                 reply = dbus_message_new_method_return(message);
1689         if (!reply)
1690                 goto nomem;
1691
1692         dbus_message_iter_init_append(reply, &iter);
1693         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
1694                                               "a{sv}", &variant_iter))
1695                 goto nomem;
1696
1697         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
1698                 goto nomem;
1699
1700         res = wpa_drv_get_capa(wpa_s, &capa);
1701
1702         /***** pairwise cipher */
1703         if (res < 0) {
1704                 const char *args[] = {"ccmp", "tkip", "none"};
1705                 if (!wpa_dbus_dict_append_string_array(
1706                             &iter_dict, "Pairwise", args,
1707                             sizeof(args) / sizeof(char*)))
1708                         goto nomem;
1709         } else {
1710                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
1711                                                       &iter_dict_entry,
1712                                                       &iter_dict_val,
1713                                                       &iter_array))
1714                         goto nomem;
1715
1716                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1717                         if (!wpa_dbus_dict_string_array_add_element(
1718                                     &iter_array, "ccmp"))
1719                                 goto nomem;
1720                 }
1721
1722                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1723                         if (!wpa_dbus_dict_string_array_add_element(
1724                                     &iter_array, "tkip"))
1725                                 goto nomem;
1726                 }
1727
1728                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1729                         if (!wpa_dbus_dict_string_array_add_element(
1730                                     &iter_array, "none"))
1731                                 goto nomem;
1732                 }
1733
1734                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1735                                                     &iter_dict_entry,
1736                                                     &iter_dict_val,
1737                                                     &iter_array))
1738                         goto nomem;
1739         }
1740
1741         /***** group cipher */
1742         if (res < 0) {
1743                 const char *args[] = {
1744                         "ccmp", "tkip", "wep104", "wep40"
1745                 };
1746                 if (!wpa_dbus_dict_append_string_array(
1747                             &iter_dict, "Group", args,
1748                             sizeof(args) / sizeof(char*)))
1749                         goto nomem;
1750         } else {
1751                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
1752                                                       &iter_dict_entry,
1753                                                       &iter_dict_val,
1754                                                       &iter_array))
1755                         goto nomem;
1756
1757                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1758                         if (!wpa_dbus_dict_string_array_add_element(
1759                                     &iter_array, "ccmp"))
1760                                 goto nomem;
1761                 }
1762
1763                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1764                         if (!wpa_dbus_dict_string_array_add_element(
1765                                     &iter_array, "tkip"))
1766                                 goto nomem;
1767                 }
1768
1769                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
1770                         if (!wpa_dbus_dict_string_array_add_element(
1771                                     &iter_array, "wep104"))
1772                                 goto nomem;
1773                 }
1774
1775                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
1776                         if (!wpa_dbus_dict_string_array_add_element(
1777                                     &iter_array, "wep40"))
1778                                 goto nomem;
1779                 }
1780
1781                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1782                                                     &iter_dict_entry,
1783                                                     &iter_dict_val,
1784                                                     &iter_array))
1785                         goto nomem;
1786         }
1787
1788         /***** key management */
1789         if (res < 0) {
1790                 const char *args[] = {
1791                         "wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
1792 #ifdef CONFIG_WPS
1793                         "wps",
1794 #endif /* CONFIG_WPS */
1795                         "none"
1796                 };
1797                 if (!wpa_dbus_dict_append_string_array(
1798                             &iter_dict, "KeyMgmt", args,
1799                             sizeof(args) / sizeof(char*)))
1800                         goto nomem;
1801         } else {
1802                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
1803                                                       &iter_dict_entry,
1804                                                       &iter_dict_val,
1805                                                       &iter_array))
1806                         goto nomem;
1807
1808                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1809                                                             "none"))
1810                         goto nomem;
1811
1812                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1813                                                             "ieee8021x"))
1814                         goto nomem;
1815
1816                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1817                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
1818                         if (!wpa_dbus_dict_string_array_add_element(
1819                                     &iter_array, "wpa-eap"))
1820                                 goto nomem;
1821
1822                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT)
1823                                 if (!wpa_dbus_dict_string_array_add_element(
1824                                             &iter_array, "wpa-ft-eap"))
1825                                         goto nomem;
1826
1827 /* TODO: Ensure that driver actually supports sha256 encryption. */
1828 #ifdef CONFIG_IEEE80211W
1829                         if (!wpa_dbus_dict_string_array_add_element(
1830                                     &iter_array, "wpa-eap-sha256"))
1831                                 goto nomem;
1832 #endif /* CONFIG_IEEE80211W */
1833                 }
1834
1835                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1836                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1837                         if (!wpa_dbus_dict_string_array_add_element(
1838                                     &iter_array, "wpa-psk"))
1839                                 goto nomem;
1840
1841                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK)
1842                                 if (!wpa_dbus_dict_string_array_add_element(
1843                                             &iter_array, "wpa-ft-psk"))
1844                                         goto nomem;
1845
1846 /* TODO: Ensure that driver actually supports sha256 encryption. */
1847 #ifdef CONFIG_IEEE80211W
1848                         if (!wpa_dbus_dict_string_array_add_element(
1849                                     &iter_array, "wpa-psk-sha256"))
1850                                 goto nomem;
1851 #endif /* CONFIG_IEEE80211W */
1852                 }
1853
1854                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1855                         if (!wpa_dbus_dict_string_array_add_element(
1856                                     &iter_array, "wpa-none"))
1857                                 goto nomem;
1858                 }
1859
1860
1861 #ifdef CONFIG_WPS
1862                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1863                                                             "wps"))
1864                         goto nomem;
1865 #endif /* CONFIG_WPS */
1866
1867                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1868                                                     &iter_dict_entry,
1869                                                     &iter_dict_val,
1870                                                     &iter_array))
1871                         goto nomem;
1872         }
1873
1874         /***** WPA protocol */
1875         if (res < 0) {
1876                 const char *args[] = { "rsn", "wpa" };
1877                 if (!wpa_dbus_dict_append_string_array(
1878                             &iter_dict, "Protocol", args,
1879                             sizeof(args) / sizeof(char*)))
1880                         goto nomem;
1881         } else {
1882                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
1883                                                       &iter_dict_entry,
1884                                                       &iter_dict_val,
1885                                                       &iter_array))
1886                         goto nomem;
1887
1888                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1889                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1890                         if (!wpa_dbus_dict_string_array_add_element(
1891                                     &iter_array, "rsn"))
1892                                 goto nomem;
1893                 }
1894
1895                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1896                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
1897                         if (!wpa_dbus_dict_string_array_add_element(
1898                                     &iter_array, "wpa"))
1899                                 goto nomem;
1900                 }
1901
1902                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1903                                                     &iter_dict_entry,
1904                                                     &iter_dict_val,
1905                                                     &iter_array))
1906                         goto nomem;
1907         }
1908
1909         /***** auth alg */
1910         if (res < 0) {
1911                 const char *args[] = { "open", "shared", "leap" };
1912                 if (!wpa_dbus_dict_append_string_array(
1913                             &iter_dict, "AuthAlg", args,
1914                             sizeof(args) / sizeof(char*)))
1915                         goto nomem;
1916         } else {
1917                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
1918                                                       &iter_dict_entry,
1919                                                       &iter_dict_val,
1920                                                       &iter_array))
1921                         goto nomem;
1922
1923                 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
1924                         if (!wpa_dbus_dict_string_array_add_element(
1925                                     &iter_array, "open"))
1926                                 goto nomem;
1927                 }
1928
1929                 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
1930                         if (!wpa_dbus_dict_string_array_add_element(
1931                                     &iter_array, "shared"))
1932                                 goto nomem;
1933                 }
1934
1935                 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
1936                         if (!wpa_dbus_dict_string_array_add_element(
1937                                     &iter_array, "leap"))
1938                                 goto nomem;
1939                 }
1940
1941                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1942                                                     &iter_dict_entry,
1943                                                     &iter_dict_val,
1944                                                     &iter_array))
1945                         goto nomem;
1946         }
1947
1948         /***** Scan */
1949         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
1950                                                sizeof(scans) / sizeof(char *)))
1951                 goto nomem;
1952
1953         /***** Modes */
1954         if (res < 0 || !(capa.flags & WPA_DRIVER_FLAGS_AP))
1955                 n--; /* exclude ap mode if it is not supported by the driver */
1956         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Modes", modes, n))
1957                 goto nomem;
1958
1959         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
1960                 goto nomem;
1961         if (!dbus_message_iter_close_container(&iter, &variant_iter))
1962                 goto nomem;
1963
1964         return reply;
1965
1966 nomem:
1967         if (reply)
1968                 dbus_message_unref(reply);
1969
1970         return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
1971 }
1972
1973
1974 /**
1975  * wpas_dbus_getter_state - Get interface state
1976  * @message: Pointer to incoming dbus message
1977  * @wpa_s: wpa_supplicant structure for a network interface
1978  * Returns: A dbus message containing a STRING representing the current
1979  *          interface state
1980  *
1981  * Getter for "State" property.
1982  */
1983 DBusMessage * wpas_dbus_getter_state(DBusMessage *message,
1984                                      struct wpa_supplicant *wpa_s)
1985 {
1986         DBusMessage *reply = NULL;
1987         const char *str_state;
1988         char *state_ls, *tmp;
1989
1990         str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
1991
1992         /* make state string lowercase to fit new DBus API convention
1993          */
1994         state_ls = tmp = os_strdup(str_state);
1995         if (!tmp) {
1996                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1997                                               NULL);
1998         }
1999         while (*tmp) {
2000                 *tmp = tolower(*tmp);
2001                 tmp++;
2002         }
2003
2004         reply = wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2005                                                  &state_ls);
2006
2007         os_free(state_ls);
2008
2009         return reply;
2010 }
2011
2012
2013 /**
2014  * wpas_dbus_new_iface_get_scanning - Get interface scanning state
2015  * @message: Pointer to incoming dbus message
2016  * @wpa_s: wpa_supplicant structure for a network interface
2017  * Returns: A dbus message containing whether the interface is scanning
2018  *
2019  * Getter for "scanning" property.
2020  */
2021 DBusMessage * wpas_dbus_getter_scanning(DBusMessage *message,
2022                                         struct wpa_supplicant *wpa_s)
2023 {
2024         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
2025         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2026                                                 &scanning);
2027 }
2028
2029
2030 /**
2031  * wpas_dbus_getter_ap_scan - Control roaming mode
2032  * @message: Pointer to incoming dbus message
2033  * @wpa_s: wpa_supplicant structure for a network interface
2034  * Returns: A message containong value of ap_scan variable
2035  *
2036  * Getter function for "ApScan" property.
2037  */
2038 DBusMessage * wpas_dbus_getter_ap_scan(DBusMessage *message,
2039                                        struct wpa_supplicant *wpa_s)
2040 {
2041         dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
2042         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT32,
2043                                                 &ap_scan);
2044 }
2045
2046
2047 /**
2048  * wpas_dbus_setter_ap_scan - Control roaming mode
2049  * @message: Pointer to incoming dbus message
2050  * @wpa_s: wpa_supplicant structure for a network interface
2051  * Returns: NULL
2052  *
2053  * Setter function for "ApScan" property.
2054  */
2055 DBusMessage * wpas_dbus_setter_ap_scan(DBusMessage *message,
2056                                        struct wpa_supplicant *wpa_s)
2057 {
2058         DBusMessage *reply = NULL;
2059         dbus_uint32_t ap_scan;
2060
2061         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_UINT32,
2062                                                  &ap_scan);
2063         if (reply)
2064                 return reply;
2065
2066         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
2067                 return wpas_dbus_error_invalid_args(
2068                         message, "ap_scan must equal 0, 1 or 2");
2069         }
2070         return NULL;
2071 }
2072
2073
2074 /**
2075  * wpas_dbus_getter_ifname - Get interface name
2076  * @message: Pointer to incoming dbus message
2077  * @wpa_s: wpa_supplicant structure for a network interface
2078  * Returns: A dbus message containing a name of network interface
2079  * associated with with wpa_s
2080  *
2081  * Getter for "Ifname" property.
2082  */
2083 DBusMessage * wpas_dbus_getter_ifname(DBusMessage *message,
2084                                       struct wpa_supplicant *wpa_s)
2085 {
2086         const char *ifname = wpa_s->ifname;
2087         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2088                                                 &ifname);
2089 }
2090
2091
2092 /**
2093  * wpas_dbus_getter_driver - Get interface name
2094  * @message: Pointer to incoming dbus message
2095  * @wpa_s: wpa_supplicant structure for a network interface
2096  * Returns: A dbus message containing a name of network interface
2097  * driver associated with with wpa_s
2098  *
2099  * Getter for "Driver" property.
2100  */
2101 DBusMessage * wpas_dbus_getter_driver(DBusMessage *message,
2102                                       struct wpa_supplicant *wpa_s)
2103 {
2104         const char *driver;
2105
2106         if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
2107                 wpa_printf(MSG_DEBUG, "wpas_dbus_getter_driver[dbus]: "
2108                            "wpa_s has no driver set");
2109                 return wpas_dbus_error_unknown_error(message, NULL);
2110         }
2111
2112         driver = wpa_s->driver->name;
2113         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2114                                                 &driver);
2115 }
2116
2117
2118 /**
2119  * wpas_dbus_getter_current_bss - Get current bss object path
2120  * @message: Pointer to incoming dbus message
2121  * @wpa_s: wpa_supplicant structure for a network interface
2122  * Returns: A dbus message containing a DBus object path to
2123  * current BSS
2124  *
2125  * Getter for "CurrentBSS" property.
2126  */
2127 DBusMessage * wpas_dbus_getter_current_bss(DBusMessage *message,
2128                                            struct wpa_supplicant *wpa_s)
2129 {
2130         DBusMessage *reply;
2131         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
2132
2133         if (wpa_s->current_bss)
2134                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2135                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2136                             wpa_s->dbus_new_path, wpa_s->current_bss->id);
2137         else
2138                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2139
2140         reply = wpas_dbus_simple_property_getter(message,
2141                                                  DBUS_TYPE_OBJECT_PATH,
2142                                                  &bss_obj_path);
2143
2144         return reply;
2145 }
2146
2147
2148 /**
2149  * wpas_dbus_getter_current_network - Get current network object path
2150  * @message: Pointer to incoming dbus message
2151  * @wpa_s: wpa_supplicant structure for a network interface
2152  * Returns: A dbus message containing a DBus object path to
2153  * current network
2154  *
2155  * Getter for "CurrentNetwork" property.
2156  */
2157 DBusMessage * wpas_dbus_getter_current_network(DBusMessage *message,
2158                                                struct wpa_supplicant *wpa_s)
2159 {
2160         DBusMessage *reply;
2161         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
2162
2163         if (wpa_s->current_ssid)
2164                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2165                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
2166                             wpa_s->dbus_new_path, wpa_s->current_ssid->id);
2167         else
2168                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2169
2170         reply = wpas_dbus_simple_property_getter(message,
2171                                                  DBUS_TYPE_OBJECT_PATH,
2172                                                  &net_obj_path);
2173
2174         return reply;
2175 }
2176
2177
2178 /**
2179  * wpas_dbus_getter_bridge_ifname - Get interface name
2180  * @message: Pointer to incoming dbus message
2181  * @wpa_s: wpa_supplicant structure for a network interface
2182  * Returns: A dbus message containing a name of bridge network
2183  * interface associated with with wpa_s
2184  *
2185  * Getter for "BridgeIfname" property.
2186  */
2187 DBusMessage * wpas_dbus_getter_bridge_ifname(DBusMessage *message,
2188                                              struct wpa_supplicant *wpa_s)
2189 {
2190         const char *bridge_ifname = NULL;
2191
2192         bridge_ifname = wpa_s->bridge_ifname;
2193         if (bridge_ifname == NULL) {
2194                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bridge_ifname[dbus]: "
2195                            "wpa_s has no bridge interface name set");
2196                 return wpas_dbus_error_unknown_error(message, NULL);
2197         }
2198
2199         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2200                                                 &bridge_ifname);
2201 }
2202
2203
2204 /**
2205  * wpas_dbus_getter_bsss - Get array of BSSs objects
2206  * @message: Pointer to incoming dbus message
2207  * @wpa_s: wpa_supplicant structure for a network interface
2208  * Returns: a dbus message containing an array of all known BSS objects
2209  * dbus paths
2210  *
2211  * Getter for "BSSs" property.
2212  */
2213 DBusMessage * wpas_dbus_getter_bsss(DBusMessage *message,
2214                                     struct wpa_supplicant *wpa_s)
2215 {
2216         DBusMessage *reply = NULL;
2217         struct wpa_bss *bss;
2218         char **paths;
2219         unsigned int i = 0;
2220
2221         paths = os_zalloc(wpa_s->num_bss * sizeof(char *));
2222         if (!paths) {
2223                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2224                                               NULL);
2225         }
2226
2227         /* Loop through scan results and append each result's object path */
2228         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
2229                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2230                 if (paths[i] == NULL) {
2231                         reply = dbus_message_new_error(message,
2232                                                        DBUS_ERROR_NO_MEMORY,
2233                                                        NULL);
2234                         goto out;
2235                 }
2236                 /* Construct the object path for this BSS. */
2237                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2238                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2239                             wpa_s->dbus_new_path, bss->id);
2240         }
2241
2242         reply = wpas_dbus_simple_array_property_getter(message,
2243                                                        DBUS_TYPE_OBJECT_PATH,
2244                                                        paths, wpa_s->num_bss);
2245
2246 out:
2247         while (i)
2248                 os_free(paths[--i]);
2249         os_free(paths);
2250         return reply;
2251 }
2252
2253
2254 /**
2255  * wpas_dbus_getter_networks - Get array of networks objects
2256  * @message: Pointer to incoming dbus message
2257  * @wpa_s: wpa_supplicant structure for a network interface
2258  * Returns: a dbus message containing an array of all configured
2259  * networks dbus object paths.
2260  *
2261  * Getter for "Networks" property.
2262  */
2263 DBusMessage * wpas_dbus_getter_networks(DBusMessage *message,
2264                                         struct wpa_supplicant *wpa_s)
2265 {
2266         DBusMessage *reply = NULL;
2267         struct wpa_ssid *ssid;
2268         char **paths;
2269         unsigned int i = 0, num = 0;
2270
2271         if (wpa_s->conf == NULL) {
2272                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_networks[dbus]: "
2273                            "An error occurred getting networks list.");
2274                 return wpas_dbus_error_unknown_error(message, NULL);
2275         }
2276
2277         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2278                 num++;
2279
2280         paths = os_zalloc(num * sizeof(char *));
2281         if (!paths) {
2282                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2283                                               NULL);
2284         }
2285
2286         /* Loop through configured networks and append object path of each */
2287         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
2288                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2289                 if (paths[i] == NULL) {
2290                         reply = dbus_message_new_error(message,
2291                                                        DBUS_ERROR_NO_MEMORY,
2292                                                        NULL);
2293                         goto out;
2294                 }
2295
2296                 /* Construct the object path for this network. */
2297                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2298                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
2299                             wpa_s->dbus_new_path, ssid->id);
2300         }
2301
2302         reply = wpas_dbus_simple_array_property_getter(message,
2303                                                        DBUS_TYPE_OBJECT_PATH,
2304                                                        paths, num);
2305
2306 out:
2307         while (i)
2308                 os_free(paths[--i]);
2309         os_free(paths);
2310         return reply;
2311 }
2312
2313
2314 /**
2315  * wpas_dbus_getter_blobs - Get all blobs defined for this interface
2316  * @message: Pointer to incoming dbus message
2317  * @wpa_s: wpa_supplicant structure for a network interface
2318  * Returns: a dbus message containing a dictionary of pairs (blob_name, blob)
2319  *
2320  * Getter for "Blobs" property.
2321  */
2322 DBusMessage * wpas_dbus_getter_blobs(DBusMessage *message,
2323                                      struct wpa_supplicant *wpa_s)
2324 {
2325         DBusMessage *reply = NULL;
2326         DBusMessageIter iter, variant_iter, dict_iter, entry_iter, array_iter;
2327         struct wpa_config_blob *blob;
2328
2329         if (message == NULL)
2330                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2331         else
2332                 reply = dbus_message_new_method_return(message);
2333         if (!reply)
2334                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2335                                               NULL);
2336
2337         dbus_message_iter_init_append(reply, &iter);
2338
2339         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2340                                               "a{say}", &variant_iter) ||
2341             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
2342                                               "{say}", &dict_iter)) {
2343                 dbus_message_unref(reply);
2344                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2345                                               NULL);
2346         }
2347
2348         blob = wpa_s->conf->blobs;
2349         while (blob) {
2350                 if (!dbus_message_iter_open_container(&dict_iter,
2351                                                       DBUS_TYPE_DICT_ENTRY,
2352                                                       NULL, &entry_iter) ||
2353                     !dbus_message_iter_append_basic(&entry_iter,
2354                                                     DBUS_TYPE_STRING,
2355                                                     &(blob->name)) ||
2356                     !dbus_message_iter_open_container(&entry_iter,
2357                                                       DBUS_TYPE_ARRAY,
2358                                                       DBUS_TYPE_BYTE_AS_STRING,
2359                                                       &array_iter) ||
2360                     !dbus_message_iter_append_fixed_array(&array_iter,
2361                                                           DBUS_TYPE_BYTE,
2362                                                           &(blob->data),
2363                                                           blob->len) ||
2364                     !dbus_message_iter_close_container(&entry_iter,
2365                                                        &array_iter) ||
2366                     !dbus_message_iter_close_container(&dict_iter,
2367                                                        &entry_iter)) {
2368                         dbus_message_unref(reply);
2369                         return dbus_message_new_error(message,
2370                                                       DBUS_ERROR_NO_MEMORY,
2371                                                       NULL);
2372                 }
2373
2374                 blob = blob->next;
2375         }
2376
2377         if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
2378             !dbus_message_iter_close_container(&iter, &variant_iter)) {
2379                 dbus_message_unref(reply);
2380                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2381                                               NULL);
2382         }
2383
2384         return reply;
2385 }
2386
2387
2388 /**
2389  * wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
2390  * @message: Pointer to incoming dbus message
2391  * @bss: a pair of interface describing structure and bss's id
2392  * Returns: a dbus message containing the bssid for the requested bss
2393  *
2394  * Getter for "BSSID" property.
2395  */
2396 DBusMessage * wpas_dbus_getter_bss_bssid(DBusMessage *message,
2397                                          struct bss_handler_args *bss)
2398 {
2399         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2400
2401         if (!res) {
2402                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_bssid[dbus]: no "
2403                            "bss with id %d found", bss->id);
2404                 return NULL;
2405         }
2406
2407         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2408                                                       res->bssid, ETH_ALEN);
2409 }
2410
2411
2412 /**
2413  * wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
2414  * @message: Pointer to incoming dbus message
2415  * @bss: a pair of interface describing structure and bss's id
2416  * Returns: a dbus message containing the ssid for the requested bss
2417  *
2418  * Getter for "SSID" property.
2419  */
2420 DBusMessage * wpas_dbus_getter_bss_ssid(DBusMessage *message,
2421                                               struct bss_handler_args *bss)
2422 {
2423         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2424
2425         if (!res) {
2426                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ssid[dbus]: no "
2427                            "bss with id %d found", bss->id);
2428                 return NULL;
2429         }
2430
2431         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2432                                                       res->ssid,
2433                                                       res->ssid_len);
2434 }
2435
2436
2437 /**
2438  * wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
2439  * @message: Pointer to incoming dbus message
2440  * @bss: a pair of interface describing structure and bss's id
2441  * Returns: a dbus message containing the privacy flag value of requested bss
2442  *
2443  * Getter for "Privacy" property.
2444  */
2445 DBusMessage * wpas_dbus_getter_bss_privacy(DBusMessage *message,
2446                                            struct bss_handler_args *bss)
2447 {
2448         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2449         dbus_bool_t privacy;
2450
2451         if (!res) {
2452                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_privacy[dbus]: no "
2453                            "bss with id %d found", bss->id);
2454                 return NULL;
2455         }
2456
2457         privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
2458         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2459                                                 &privacy);
2460 }
2461
2462
2463 /**
2464  * wpas_dbus_getter_bss_mode - Return the mode of a BSS
2465  * @message: Pointer to incoming dbus message
2466  * @bss: a pair of interface describing structure and bss's id
2467  * Returns: a dbus message containing the mode of requested bss
2468  *
2469  * Getter for "Mode" property.
2470  */
2471 DBusMessage * wpas_dbus_getter_bss_mode(DBusMessage *message,
2472                                         struct bss_handler_args *bss)
2473 {
2474         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2475         const char *mode;
2476
2477         if (!res) {
2478                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_mode[dbus]: no "
2479                            "bss with id %d found", bss->id);
2480                 return NULL;
2481         }
2482
2483         if (res->caps & IEEE80211_CAP_IBSS)
2484                 mode = "ad-hoc";
2485         else
2486                 mode = "infrastructure";
2487
2488         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2489                                                 &mode);
2490 }
2491
2492
2493 /**
2494  * wpas_dbus_getter_bss_level - Return the signal strength of a BSS
2495  * @message: Pointer to incoming dbus message
2496  * @bss: a pair of interface describing structure and bss's id
2497  * Returns: a dbus message containing the signal strength of requested bss
2498  *
2499  * Getter for "Level" property.
2500  */
2501 DBusMessage * wpas_dbus_getter_bss_signal(DBusMessage *message,
2502                                           struct bss_handler_args *bss)
2503 {
2504         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2505
2506         if (!res) {
2507                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_signal[dbus]: no "
2508                            "bss with id %d found", bss->id);
2509                 return NULL;
2510         }
2511
2512         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_INT16,
2513                                                 &res->level);
2514 }
2515
2516
2517 /**
2518  * wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
2519  * @message: Pointer to incoming dbus message
2520  * @bss: a pair of interface describing structure and bss's id
2521  * Returns: a dbus message containing the frequency of requested bss
2522  *
2523  * Getter for "Frequency" property.
2524  */
2525 DBusMessage * wpas_dbus_getter_bss_frequency(DBusMessage *message,
2526                                              struct bss_handler_args *bss)
2527 {
2528         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2529
2530         if (!res) {
2531                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_frequency[dbus]: "
2532                            "no bss with id %d found", bss->id);
2533                 return NULL;
2534         }
2535
2536         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT16,
2537                                                 &res->freq);
2538 }
2539
2540
2541 static int cmp_u8s_desc(const void *a, const void *b)
2542 {
2543         return (*(u8 *) b - *(u8 *) a);
2544 }
2545
2546
2547 /**
2548  * wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
2549  * @message: Pointer to incoming dbus message
2550  * @bss: a pair of interface describing structure and bss's id
2551  * Returns: a dbus message containing sorted array of bit rates
2552  *
2553  * Getter for "Rates" property.
2554  */
2555 DBusMessage * wpas_dbus_getter_bss_rates(DBusMessage *message,
2556                                             struct bss_handler_args *bss)
2557 {
2558         DBusMessage *reply;
2559         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2560         u8 *ie_rates = NULL;
2561         u32 *real_rates;
2562         int rates_num, i;
2563
2564         if (!res) {
2565                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rates[dbus]: "
2566                            "no bss with id %d found", bss->id);
2567                 return NULL;
2568         }
2569
2570         rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
2571         if (rates_num < 0)
2572                 return NULL;
2573
2574         qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
2575
2576         real_rates = os_malloc(sizeof(u32) * rates_num);
2577         if (!real_rates) {
2578                 os_free(ie_rates);
2579                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2580                                               NULL);
2581         }
2582
2583         for (i = 0; i < rates_num; i++)
2584                 real_rates[i] = ie_rates[i] * 500000;
2585
2586         reply = wpas_dbus_simple_array_property_getter(message,
2587                                                        DBUS_TYPE_UINT32,
2588                                                        real_rates, rates_num);
2589
2590         os_free(ie_rates);
2591         os_free(real_rates);
2592         return reply;
2593 }
2594
2595
2596 static DBusMessage * wpas_dbus_get_bss_security_prop(
2597         DBusMessage *message, struct wpa_ie_data *ie_data)
2598 {
2599         DBusMessage *reply;
2600         DBusMessageIter iter, iter_dict, variant_iter;
2601         const char *group;
2602         const char *pairwise[2]; /* max 2 pairwise ciphers is supported */
2603         const char *key_mgmt[7]; /* max 7 key managements may be supported */
2604         int n;
2605
2606         if (message == NULL)
2607                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2608         else
2609                 reply = dbus_message_new_method_return(message);
2610         if (!reply)
2611                 goto nomem;
2612
2613         dbus_message_iter_init_append(reply, &iter);
2614         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2615                                               "a{sv}", &variant_iter))
2616                 goto nomem;
2617
2618         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
2619                 goto nomem;
2620
2621         /* KeyMgmt */
2622         n = 0;
2623         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
2624                 key_mgmt[n++] = "wpa-psk";
2625         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
2626                 key_mgmt[n++] = "wpa-ft-psk";
2627         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
2628                 key_mgmt[n++] = "wpa-psk-sha256";
2629         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
2630                 key_mgmt[n++] = "wpa-eap";
2631         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
2632                 key_mgmt[n++] = "wpa-ft-eap";
2633         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
2634                 key_mgmt[n++] = "wpa-eap-sha256";
2635         if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
2636                 key_mgmt[n++] = "wpa-none";
2637
2638         if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
2639                                                key_mgmt, n))
2640                 goto nomem;
2641
2642         /* Group */
2643         switch (ie_data->group_cipher) {
2644         case WPA_CIPHER_WEP40:
2645                 group = "wep40";
2646                 break;
2647         case WPA_CIPHER_TKIP:
2648                 group = "tkip";
2649                 break;
2650         case WPA_CIPHER_CCMP:
2651                 group = "ccmp";
2652                 break;
2653         case WPA_CIPHER_WEP104:
2654                 group = "wep104";
2655                 break;
2656         default:
2657                 group = "";
2658                 break;
2659         }
2660
2661         if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
2662                 goto nomem;
2663
2664         /* Pairwise */
2665         n = 0;
2666         if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
2667                 pairwise[n++] = "tkip";
2668         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
2669                 pairwise[n++] = "ccmp";
2670
2671         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
2672                                                pairwise, n))
2673                 goto nomem;
2674
2675         /* Management group (RSN only) */
2676         if (ie_data->proto == WPA_PROTO_RSN) {
2677                 switch (ie_data->mgmt_group_cipher) {
2678 #ifdef CONFIG_IEEE80211W
2679                 case WPA_CIPHER_AES_128_CMAC:
2680                         group = "aes128cmac";
2681                         break;
2682 #endif /* CONFIG_IEEE80211W */
2683                 default:
2684                         group = "";
2685                         break;
2686                 }
2687
2688                 if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
2689                                                  group))
2690                         goto nomem;
2691         }
2692
2693         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
2694                 goto nomem;
2695         if (!dbus_message_iter_close_container(&iter, &variant_iter))
2696                 goto nomem;
2697
2698         return reply;
2699
2700 nomem:
2701         if (reply)
2702                 dbus_message_unref(reply);
2703
2704         return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
2705 }
2706
2707
2708 /**
2709  * wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
2710  * @message: Pointer to incoming dbus message
2711  * @bss: a pair of interface describing structure and bss's id
2712  * Returns: a dbus message containing the WPA options of requested bss
2713  *
2714  * Getter for "WPA" property.
2715  */
2716 DBusMessage * wpas_dbus_getter_bss_wpa(DBusMessage *message,
2717                                        struct bss_handler_args *bss)
2718 {
2719         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2720         struct wpa_ie_data wpa_data;
2721         const u8 *ie;
2722
2723         if (!res) {
2724                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_wpa[dbus]: no "
2725                            "bss with id %d found", bss->id);
2726                 return NULL;
2727         }
2728
2729         os_memset(&wpa_data, 0, sizeof(wpa_data));
2730         ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
2731         if (ie) {
2732                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
2733                         return wpas_dbus_error_unknown_error(message,
2734                                                              "invalid WPA IE");
2735         }
2736
2737         return wpas_dbus_get_bss_security_prop(message, &wpa_data);
2738 }
2739
2740
2741 /**
2742  * wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
2743  * @message: Pointer to incoming dbus message
2744  * @bss: a pair of interface describing structure and bss's id
2745  * Returns: a dbus message containing the RSN options of requested bss
2746  *
2747  * Getter for "RSN" property.
2748  */
2749 DBusMessage * wpas_dbus_getter_bss_rsn(DBusMessage *message,
2750                                        struct bss_handler_args *bss)
2751 {
2752         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2753         struct wpa_ie_data wpa_data;
2754         const u8 *ie;
2755
2756         if (!res) {
2757                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rsn[dbus]: no "
2758                            "bss with id %d found", bss->id);
2759                 return NULL;
2760         }
2761
2762         os_memset(&wpa_data, 0, sizeof(wpa_data));
2763         ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
2764         if (ie) {
2765                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
2766                         return wpas_dbus_error_unknown_error(message,
2767                                                              "invalid RSN IE");
2768         }
2769
2770         return wpas_dbus_get_bss_security_prop(message, &wpa_data);
2771 }
2772
2773
2774 /**
2775  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
2776  * @message: Pointer to incoming dbus message
2777  * @bss: a pair of interface describing structure and bss's id
2778  * Returns: a dbus message containing IEs byte array
2779  *
2780  * Getter for "IEs" property.
2781  */
2782 DBusMessage * wpas_dbus_getter_bss_ies(DBusMessage *message,
2783                                        struct bss_handler_args *bss)
2784 {
2785         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2786
2787         if (!res) {
2788                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ies[dbus]: no "
2789                            "bss with id %d found", bss->id);
2790                 return NULL;
2791         }
2792
2793         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2794                                                       res + 1, res->ie_len);
2795 }
2796
2797
2798 /**
2799  * wpas_dbus_getter_enabled - Check whether network is enabled or disabled
2800  * @message: Pointer to incoming dbus message
2801  * @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
2802  * and wpa_ssid structure for a configured network
2803  * Returns: DBus message with boolean indicating state of configured network
2804  * or DBus error on failure
2805  *
2806  * Getter for "enabled" property of a configured network.
2807  */
2808 DBusMessage * wpas_dbus_getter_enabled(DBusMessage *message,
2809                                        struct network_handler_args *net)
2810 {
2811         dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
2812         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2813                                                 &enabled);
2814 }
2815
2816
2817 /**
2818  * wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
2819  * @message: Pointer to incoming dbus message
2820  * @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
2821  * and wpa_ssid structure for a configured network
2822  * Returns: NULL indicating success or DBus error on failure
2823  *
2824  * Setter for "Enabled" property of a configured network.
2825  */
2826 DBusMessage * wpas_dbus_setter_enabled(DBusMessage *message,
2827                                        struct network_handler_args *net)
2828 {
2829         DBusMessage *reply = NULL;
2830
2831         struct wpa_supplicant *wpa_s;
2832         struct wpa_ssid *ssid;
2833
2834         dbus_bool_t enable;
2835
2836         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
2837                                                  &enable);
2838
2839         if (reply)
2840                 return reply;
2841
2842         wpa_s = net->wpa_s;
2843         ssid = net->ssid;
2844
2845         if (enable)
2846                 wpa_supplicant_enable_network(wpa_s, ssid);
2847         else
2848                 wpa_supplicant_disable_network(wpa_s, ssid);
2849
2850         return NULL;
2851 }
2852
2853
2854 /**
2855  * wpas_dbus_getter_network_properties - Get options for a configured network
2856  * @message: Pointer to incoming dbus message
2857  * @net: wpa_supplicant structure for a network interface and
2858  * wpa_ssid structure for a configured network
2859  * Returns: DBus message with network properties or DBus error on failure
2860  *
2861  * Getter for "Properties" property of a configured network.
2862  */
2863 DBusMessage * wpas_dbus_getter_network_properties(
2864         DBusMessage *message, struct network_handler_args *net)
2865 {
2866         DBusMessage *reply = NULL;
2867         DBusMessageIter iter, variant_iter, dict_iter;
2868         char **iterator;
2869         char **props = wpa_config_get_all(net->ssid, 0);
2870         if (!props)
2871                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2872                                               NULL);
2873
2874         if (message == NULL)
2875                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2876         else
2877                 reply = dbus_message_new_method_return(message);
2878         if (!reply) {
2879                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2880                                                NULL);
2881                 goto out;
2882         }
2883
2884         dbus_message_iter_init_append(reply, &iter);
2885
2886         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2887                         "a{sv}", &variant_iter) ||
2888             !wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
2889                 dbus_message_unref(reply);
2890                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2891                                                NULL);
2892                 goto out;
2893         }
2894
2895         iterator = props;
2896         while (*iterator) {
2897                 if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
2898                                                  *(iterator + 1))) {
2899                         dbus_message_unref(reply);
2900                         reply = dbus_message_new_error(message,
2901                                                        DBUS_ERROR_NO_MEMORY,
2902                                                        NULL);
2903                         goto out;
2904                 }
2905                 iterator += 2;
2906         }
2907
2908
2909         if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
2910             !dbus_message_iter_close_container(&iter, &variant_iter)) {
2911                 dbus_message_unref(reply);
2912                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2913                                                NULL);
2914                 goto out;
2915         }
2916
2917 out:
2918         iterator = props;
2919         while (*iterator) {
2920                 os_free(*iterator);
2921                 iterator++;
2922         }
2923         os_free(props);
2924         return reply;
2925 }
2926
2927
2928 /**
2929  * wpas_dbus_setter_network_properties - Set options for a configured network
2930  * @message: Pointer to incoming dbus message
2931  * @net: wpa_supplicant structure for a network interface and
2932  * wpa_ssid structure for a configured network
2933  * Returns: NULL indicating success or DBus error on failure
2934  *
2935  * Setter for "Properties" property of a configured network.
2936  */
2937 DBusMessage * wpas_dbus_setter_network_properties(
2938         DBusMessage *message, struct network_handler_args *net)
2939 {
2940         struct wpa_ssid *ssid = net->ssid;
2941
2942         DBusMessage *reply = NULL;
2943         DBusMessageIter iter, variant_iter;
2944
2945         dbus_message_iter_init(message, &iter);
2946
2947         dbus_message_iter_next(&iter);
2948         dbus_message_iter_next(&iter);
2949
2950         dbus_message_iter_recurse(&iter, &variant_iter);
2951
2952         reply = set_network_properties(message, net->wpa_s, ssid,
2953                                        &variant_iter);
2954         if (reply)
2955                 wpa_printf(MSG_DEBUG, "dbus control interface couldn't set "
2956                            "network properties");
2957
2958         return reply;
2959 }