contrib/wpa/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                         /* wildcard ssid */
1264                         params.num_ssids++;
1265                         wpa_supplicant_trigger_scan(wpa_s, &params);
1266                 } else {
1267                         wpa_s->scan_req = 2;
1268                         wpa_supplicant_req_scan(wpa_s, 0, 0);
1269                 }
1270         } else if (!os_strcmp(type, "active")) {
1271                 wpa_supplicant_trigger_scan(wpa_s, &params);
1272         } else {
1273                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_scan[dbus]: "
1274                            "Unknown scan type: %s", type);
1275                 reply = wpas_dbus_error_invalid_args(message,
1276                                                      "Wrong scan type");
1277                 goto out;
1278         }
1279
1280 out:
1281         for (i = 0; i < WPAS_MAX_SCAN_SSIDS; i++)
1282                 os_free((u8 *) params.ssids[i].ssid);
1283         os_free((u8 *) params.extra_ies);
1284         os_free(params.freqs);
1285         return reply;
1286 }
1287
1288
1289 /*
1290  * wpas_dbus_handler_disconnect - Terminate the current connection
1291  * @message: Pointer to incoming dbus message
1292  * @wpa_s: wpa_supplicant structure for a network interface
1293  * Returns: NotConnected DBus error message if already not connected
1294  * or NULL otherwise.
1295  *
1296  * Handler function for "Disconnect" method call of network interface.
1297  */
1298 DBusMessage * wpas_dbus_handler_disconnect(DBusMessage *message,
1299                                            struct wpa_supplicant *wpa_s)
1300 {
1301         if (wpa_s->current_ssid != NULL) {
1302                 wpa_s->disconnected = 1;
1303                 wpa_supplicant_deauthenticate(wpa_s,
1304                                               WLAN_REASON_DEAUTH_LEAVING);
1305
1306                 return NULL;
1307         }
1308
1309         return dbus_message_new_error(message, WPAS_DBUS_ERROR_NOT_CONNECTED,
1310                                       "This interface is not connected");
1311 }
1312
1313
1314 /**
1315  * wpas_dbus_new_iface_add_network - Add a new configured network
1316  * @message: Pointer to incoming dbus message
1317  * @wpa_s: wpa_supplicant structure for a network interface
1318  * Returns: A dbus message containing the object path of the new network
1319  *
1320  * Handler function for "AddNetwork" method call of a network interface.
1321  */
1322 DBusMessage * wpas_dbus_handler_add_network(DBusMessage *message,
1323                                             struct wpa_supplicant *wpa_s)
1324 {
1325         DBusMessage *reply = NULL;
1326         DBusMessageIter iter;
1327         struct wpa_ssid *ssid = NULL;
1328         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
1329
1330         dbus_message_iter_init(message, &iter);
1331
1332         ssid = wpa_config_add_network(wpa_s->conf);
1333         if (ssid == NULL) {
1334                 wpa_printf(MSG_ERROR, "wpas_dbus_handler_add_network[dbus]: "
1335                            "can't add new interface.");
1336                 reply = wpas_dbus_error_unknown_error(
1337                         message,
1338                         "wpa_supplicant could not add "
1339                         "a network on this interface.");
1340                 goto err;
1341         }
1342         wpas_notify_network_added(wpa_s, ssid);
1343         ssid->disabled = 1;
1344         wpa_config_set_network_defaults(ssid);
1345
1346         reply = set_network_properties(message, wpa_s, ssid, &iter);
1347         if (reply) {
1348                 wpa_printf(MSG_DEBUG, "wpas_dbus_handler_add_network[dbus]:"
1349                            "control interface couldn't set network "
1350                            "properties");
1351                 goto err;
1352         }
1353
1354         /* Construct the object path for this network. */
1355         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
1356                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
1357                     wpa_s->dbus_new_path, ssid->id);
1358
1359         reply = dbus_message_new_method_return(message);
1360         if (reply == NULL) {
1361                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1362                                                NULL);
1363                 goto err;
1364         }
1365         if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
1366                                       DBUS_TYPE_INVALID)) {
1367                 dbus_message_unref(reply);
1368                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1369                                                NULL);
1370                 goto err;
1371         }
1372
1373         return reply;
1374
1375 err:
1376         if (ssid) {
1377                 wpas_notify_network_removed(wpa_s, ssid);
1378                 wpa_config_remove_network(wpa_s->conf, ssid->id);
1379         }
1380         return reply;
1381 }
1382
1383
1384 /**
1385  * wpas_dbus_handler_remove_network - Remove a configured network
1386  * @message: Pointer to incoming dbus message
1387  * @wpa_s: wpa_supplicant structure for a network interface
1388  * Returns: NULL on success or dbus error on failure
1389  *
1390  * Handler function for "RemoveNetwork" method call of a network interface.
1391  */
1392 DBusMessage * wpas_dbus_handler_remove_network(DBusMessage *message,
1393                                                struct wpa_supplicant *wpa_s)
1394 {
1395         DBusMessage *reply = NULL;
1396         const char *op;
1397         char *iface = NULL, *net_id = NULL;
1398         int id;
1399         struct wpa_ssid *ssid;
1400
1401         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1402                               DBUS_TYPE_INVALID);
1403
1404         /* Extract the network ID and ensure the network */
1405         /* is actually a child of this interface */
1406         iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
1407         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1408                 reply = wpas_dbus_error_invalid_args(message, op);
1409                 goto out;
1410         }
1411
1412         id = strtoul(net_id, NULL, 10);
1413         if (errno == EINVAL) {
1414                 reply = wpas_dbus_error_invalid_args(message, op);
1415                 goto out;
1416         }
1417
1418         ssid = wpa_config_get_network(wpa_s->conf, id);
1419         if (ssid == NULL) {
1420                 reply = wpas_dbus_error_network_unknown(message);
1421                 goto out;
1422         }
1423
1424         wpas_notify_network_removed(wpa_s, ssid);
1425
1426         if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
1427                 wpa_printf(MSG_ERROR,
1428                            "wpas_dbus_handler_remove_network[dbus]: "
1429                            "error occurred when removing network %d", id);
1430                 reply = wpas_dbus_error_unknown_error(
1431                         message, "error removing the specified network on "
1432                         "this interface.");
1433                 goto out;
1434         }
1435
1436         if (ssid == wpa_s->current_ssid)
1437                 wpa_supplicant_deauthenticate(wpa_s,
1438                                               WLAN_REASON_DEAUTH_LEAVING);
1439
1440 out:
1441         os_free(iface);
1442         os_free(net_id);
1443         return reply;
1444 }
1445
1446
1447 /**
1448  * wpas_dbus_handler_select_network - Attempt association with a network
1449  * @message: Pointer to incoming dbus message
1450  * @wpa_s: wpa_supplicant structure for a network interface
1451  * Returns: NULL on success or dbus error on failure
1452  *
1453  * Handler function for "SelectNetwork" method call of network interface.
1454  */
1455 DBusMessage * wpas_dbus_handler_select_network(DBusMessage *message,
1456                                                struct wpa_supplicant *wpa_s)
1457 {
1458         DBusMessage *reply = NULL;
1459         const char *op;
1460         char *iface = NULL, *net_id = NULL;
1461         int id;
1462         struct wpa_ssid *ssid;
1463
1464         dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
1465                               DBUS_TYPE_INVALID);
1466
1467         /* Extract the network ID and ensure the network */
1468         /* is actually a child of this interface */
1469         iface = wpas_dbus_new_decompose_object_path(op, &net_id, NULL);
1470         if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
1471                 reply = wpas_dbus_error_invalid_args(message, op);
1472                 goto out;
1473         }
1474
1475         id = strtoul(net_id, NULL, 10);
1476         if (errno == EINVAL) {
1477                 reply = wpas_dbus_error_invalid_args(message, op);
1478                 goto out;
1479         }
1480
1481         ssid = wpa_config_get_network(wpa_s->conf, id);
1482         if (ssid == NULL) {
1483                 reply = wpas_dbus_error_network_unknown(message);
1484                 goto out;
1485         }
1486
1487         /* Finally, associate with the network */
1488         wpa_supplicant_select_network(wpa_s, ssid);
1489
1490 out:
1491         os_free(iface);
1492         os_free(net_id);
1493         return reply;
1494 }
1495
1496
1497 /**
1498  * wpas_dbus_handler_add_blob - Store named binary blob (ie, for certificates)
1499  * @message: Pointer to incoming dbus message
1500  * @wpa_s: %wpa_supplicant data structure
1501  * Returns: A dbus message containing an error on failure or NULL on success
1502  *
1503  * Asks wpa_supplicant to internally store a binary blobs.
1504  */
1505 DBusMessage * wpas_dbus_handler_add_blob(DBusMessage *message,
1506                                          struct wpa_supplicant *wpa_s)
1507 {
1508         DBusMessage *reply = NULL;
1509         DBusMessageIter iter, array_iter;
1510
1511         char *blob_name;
1512         u8 *blob_data;
1513         int blob_len;
1514         struct wpa_config_blob *blob = NULL;
1515
1516         dbus_message_iter_init(message, &iter);
1517         dbus_message_iter_get_basic(&iter, &blob_name);
1518
1519         if (wpa_config_get_blob(wpa_s->conf, blob_name)) {
1520                 return dbus_message_new_error(message,
1521                                               WPAS_DBUS_ERROR_BLOB_EXISTS,
1522                                               NULL);
1523         }
1524
1525         dbus_message_iter_next(&iter);
1526         dbus_message_iter_recurse(&iter, &array_iter);
1527
1528         dbus_message_iter_get_fixed_array(&array_iter, &blob_data, &blob_len);
1529
1530         blob = os_zalloc(sizeof(*blob));
1531         if (!blob) {
1532                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1533                                                NULL);
1534                 goto err;
1535         }
1536
1537         blob->data = os_malloc(blob_len);
1538         if (!blob->data) {
1539                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1540                                                NULL);
1541                 goto err;
1542         }
1543         os_memcpy(blob->data, blob_data, blob_len);
1544
1545         blob->len = blob_len;
1546         blob->name = os_strdup(blob_name);
1547         if (!blob->name) {
1548                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1549                                                NULL);
1550                 goto err;
1551         }
1552
1553         wpa_config_set_blob(wpa_s->conf, blob);
1554         wpas_notify_blob_added(wpa_s, blob->name);
1555
1556         return reply;
1557
1558 err:
1559         if (blob) {
1560                 os_free(blob->name);
1561                 os_free(blob->data);
1562                 os_free(blob);
1563         }
1564         return reply;
1565 }
1566
1567
1568 /**
1569  * wpas_dbus_handler_get_blob - Get named binary blob (ie, for certificates)
1570  * @message: Pointer to incoming dbus message
1571  * @wpa_s: %wpa_supplicant data structure
1572  * Returns: A dbus message containing array of bytes (blob)
1573  *
1574  * Gets one wpa_supplicant's binary blobs.
1575  */
1576 DBusMessage * wpas_dbus_handler_get_blob(DBusMessage *message,
1577                                          struct wpa_supplicant *wpa_s)
1578 {
1579         DBusMessage *reply = NULL;
1580         DBusMessageIter iter, array_iter;
1581
1582         char *blob_name;
1583         const struct wpa_config_blob *blob;
1584
1585         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1586                               DBUS_TYPE_INVALID);
1587
1588         blob = wpa_config_get_blob(wpa_s->conf, blob_name);
1589         if (!blob) {
1590                 return dbus_message_new_error(message,
1591                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1592                                               "Blob id not set");
1593         }
1594
1595         reply = dbus_message_new_method_return(message);
1596         if (!reply) {
1597                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1598                                                NULL);
1599                 goto out;
1600         }
1601
1602         dbus_message_iter_init_append(reply, &iter);
1603
1604         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
1605                                               DBUS_TYPE_BYTE_AS_STRING,
1606                                               &array_iter)) {
1607                 dbus_message_unref(reply);
1608                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1609                                                NULL);
1610                 goto out;
1611         }
1612
1613         if (!dbus_message_iter_append_fixed_array(&array_iter, DBUS_TYPE_BYTE,
1614                                                   &(blob->data), blob->len)) {
1615                 dbus_message_unref(reply);
1616                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1617                                                NULL);
1618                 goto out;
1619         }
1620
1621         if (!dbus_message_iter_close_container(&iter, &array_iter)) {
1622                 dbus_message_unref(reply);
1623                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1624                                                NULL);
1625                 goto out;
1626         }
1627
1628 out:
1629         return reply;
1630 }
1631
1632
1633 /**
1634  * wpas_remove_handler_remove_blob - Remove named binary blob
1635  * @message: Pointer to incoming dbus message
1636  * @wpa_s: %wpa_supplicant data structure
1637  * Returns: NULL on success or dbus error
1638  *
1639  * Asks wpa_supplicant to internally remove a binary blobs.
1640  */
1641 DBusMessage * wpas_dbus_handler_remove_blob(DBusMessage *message,
1642                                             struct wpa_supplicant *wpa_s)
1643 {
1644         DBusMessage *reply = NULL;
1645         char *blob_name;
1646
1647         dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &blob_name,
1648                               DBUS_TYPE_INVALID);
1649
1650         if (wpa_config_remove_blob(wpa_s->conf, blob_name)) {
1651                 return dbus_message_new_error(message,
1652                                               WPAS_DBUS_ERROR_BLOB_UNKNOWN,
1653                                               "Blob id not set");
1654         }
1655         wpas_notify_blob_removed(wpa_s, blob_name);
1656
1657         return reply;
1658
1659 }
1660
1661
1662 /**
1663  * wpas_dbus_getter_capabilities - Return interface capabilities
1664  * @message: Pointer to incoming dbus message
1665  * @wpa_s: wpa_supplicant structure for a network interface
1666  * Returns: A dbus message containing a dict of strings
1667  *
1668  * Getter for "Capabilities" property of an interface.
1669  */
1670 DBusMessage * wpas_dbus_getter_capabilities(DBusMessage *message,
1671                                             struct wpa_supplicant *wpa_s)
1672 {
1673         DBusMessage *reply = NULL;
1674         struct wpa_driver_capa capa;
1675         int res;
1676         DBusMessageIter iter, iter_dict;
1677         DBusMessageIter iter_dict_entry, iter_dict_val, iter_array,
1678                 variant_iter;
1679         const char *scans[] = { "active", "passive", "ssid" };
1680         const char *modes[] = { "infrastructure", "ad-hoc", "ap" };
1681         int n = sizeof(modes) / sizeof(char *);
1682
1683         if (message == NULL)
1684                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
1685         else
1686                 reply = dbus_message_new_method_return(message);
1687         if (!reply)
1688                 goto nomem;
1689
1690         dbus_message_iter_init_append(reply, &iter);
1691         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
1692                                               "a{sv}", &variant_iter))
1693                 goto nomem;
1694
1695         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
1696                 goto nomem;
1697
1698         res = wpa_drv_get_capa(wpa_s, &capa);
1699
1700         /***** pairwise cipher */
1701         if (res < 0) {
1702                 const char *args[] = {"ccmp", "tkip", "none"};
1703                 if (!wpa_dbus_dict_append_string_array(
1704                             &iter_dict, "Pairwise", args,
1705                             sizeof(args) / sizeof(char*)))
1706                         goto nomem;
1707         } else {
1708                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Pairwise",
1709                                                       &iter_dict_entry,
1710                                                       &iter_dict_val,
1711                                                       &iter_array))
1712                         goto nomem;
1713
1714                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1715                         if (!wpa_dbus_dict_string_array_add_element(
1716                                     &iter_array, "ccmp"))
1717                                 goto nomem;
1718                 }
1719
1720                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1721                         if (!wpa_dbus_dict_string_array_add_element(
1722                                     &iter_array, "tkip"))
1723                                 goto nomem;
1724                 }
1725
1726                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1727                         if (!wpa_dbus_dict_string_array_add_element(
1728                                     &iter_array, "none"))
1729                                 goto nomem;
1730                 }
1731
1732                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1733                                                     &iter_dict_entry,
1734                                                     &iter_dict_val,
1735                                                     &iter_array))
1736                         goto nomem;
1737         }
1738
1739         /***** group cipher */
1740         if (res < 0) {
1741                 const char *args[] = {
1742                         "ccmp", "tkip", "wep104", "wep40"
1743                 };
1744                 if (!wpa_dbus_dict_append_string_array(
1745                             &iter_dict, "Group", args,
1746                             sizeof(args) / sizeof(char*)))
1747                         goto nomem;
1748         } else {
1749                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Group",
1750                                                       &iter_dict_entry,
1751                                                       &iter_dict_val,
1752                                                       &iter_array))
1753                         goto nomem;
1754
1755                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
1756                         if (!wpa_dbus_dict_string_array_add_element(
1757                                     &iter_array, "ccmp"))
1758                                 goto nomem;
1759                 }
1760
1761                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
1762                         if (!wpa_dbus_dict_string_array_add_element(
1763                                     &iter_array, "tkip"))
1764                                 goto nomem;
1765                 }
1766
1767                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
1768                         if (!wpa_dbus_dict_string_array_add_element(
1769                                     &iter_array, "wep104"))
1770                                 goto nomem;
1771                 }
1772
1773                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
1774                         if (!wpa_dbus_dict_string_array_add_element(
1775                                     &iter_array, "wep40"))
1776                                 goto nomem;
1777                 }
1778
1779                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1780                                                     &iter_dict_entry,
1781                                                     &iter_dict_val,
1782                                                     &iter_array))
1783                         goto nomem;
1784         }
1785
1786         /***** key management */
1787         if (res < 0) {
1788                 const char *args[] = {
1789                         "wpa-psk", "wpa-eap", "ieee8021x", "wpa-none",
1790 #ifdef CONFIG_WPS
1791                         "wps",
1792 #endif /* CONFIG_WPS */
1793                         "none"
1794                 };
1795                 if (!wpa_dbus_dict_append_string_array(
1796                             &iter_dict, "KeyMgmt", args,
1797                             sizeof(args) / sizeof(char*)))
1798                         goto nomem;
1799         } else {
1800                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "KeyMgmt",
1801                                                       &iter_dict_entry,
1802                                                       &iter_dict_val,
1803                                                       &iter_array))
1804                         goto nomem;
1805
1806                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1807                                                             "none"))
1808                         goto nomem;
1809
1810                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1811                                                             "ieee8021x"))
1812                         goto nomem;
1813
1814                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1815                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
1816                         if (!wpa_dbus_dict_string_array_add_element(
1817                                     &iter_array, "wpa-eap"))
1818                                 goto nomem;
1819
1820                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT)
1821                                 if (!wpa_dbus_dict_string_array_add_element(
1822                                             &iter_array, "wpa-ft-eap"))
1823                                         goto nomem;
1824
1825 /* TODO: Ensure that driver actually supports sha256 encryption. */
1826 #ifdef CONFIG_IEEE80211W
1827                         if (!wpa_dbus_dict_string_array_add_element(
1828                                     &iter_array, "wpa-eap-sha256"))
1829                                 goto nomem;
1830 #endif /* CONFIG_IEEE80211W */
1831                 }
1832
1833                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1834                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1835                         if (!wpa_dbus_dict_string_array_add_element(
1836                                     &iter_array, "wpa-psk"))
1837                                 goto nomem;
1838
1839                         if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK)
1840                                 if (!wpa_dbus_dict_string_array_add_element(
1841                                             &iter_array, "wpa-ft-psk"))
1842                                         goto nomem;
1843
1844 /* TODO: Ensure that driver actually supports sha256 encryption. */
1845 #ifdef CONFIG_IEEE80211W
1846                         if (!wpa_dbus_dict_string_array_add_element(
1847                                     &iter_array, "wpa-psk-sha256"))
1848                                 goto nomem;
1849 #endif /* CONFIG_IEEE80211W */
1850                 }
1851
1852                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
1853                         if (!wpa_dbus_dict_string_array_add_element(
1854                                     &iter_array, "wpa-none"))
1855                                 goto nomem;
1856                 }
1857
1858
1859 #ifdef CONFIG_WPS
1860                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
1861                                                             "wps"))
1862                         goto nomem;
1863 #endif /* CONFIG_WPS */
1864
1865                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1866                                                     &iter_dict_entry,
1867                                                     &iter_dict_val,
1868                                                     &iter_array))
1869                         goto nomem;
1870         }
1871
1872         /***** WPA protocol */
1873         if (res < 0) {
1874                 const char *args[] = { "rsn", "wpa" };
1875                 if (!wpa_dbus_dict_append_string_array(
1876                             &iter_dict, "Protocol", args,
1877                             sizeof(args) / sizeof(char*)))
1878                         goto nomem;
1879         } else {
1880                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "Protocol",
1881                                                       &iter_dict_entry,
1882                                                       &iter_dict_val,
1883                                                       &iter_array))
1884                         goto nomem;
1885
1886                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1887                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
1888                         if (!wpa_dbus_dict_string_array_add_element(
1889                                     &iter_array, "rsn"))
1890                                 goto nomem;
1891                 }
1892
1893                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1894                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
1895                         if (!wpa_dbus_dict_string_array_add_element(
1896                                     &iter_array, "wpa"))
1897                                 goto nomem;
1898                 }
1899
1900                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1901                                                     &iter_dict_entry,
1902                                                     &iter_dict_val,
1903                                                     &iter_array))
1904                         goto nomem;
1905         }
1906
1907         /***** auth alg */
1908         if (res < 0) {
1909                 const char *args[] = { "open", "shared", "leap" };
1910                 if (!wpa_dbus_dict_append_string_array(
1911                             &iter_dict, "AuthAlg", args,
1912                             sizeof(args) / sizeof(char*)))
1913                         goto nomem;
1914         } else {
1915                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "AuthAlg",
1916                                                       &iter_dict_entry,
1917                                                       &iter_dict_val,
1918                                                       &iter_array))
1919                         goto nomem;
1920
1921                 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
1922                         if (!wpa_dbus_dict_string_array_add_element(
1923                                     &iter_array, "open"))
1924                                 goto nomem;
1925                 }
1926
1927                 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
1928                         if (!wpa_dbus_dict_string_array_add_element(
1929                                     &iter_array, "shared"))
1930                                 goto nomem;
1931                 }
1932
1933                 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
1934                         if (!wpa_dbus_dict_string_array_add_element(
1935                                     &iter_array, "leap"))
1936                                 goto nomem;
1937                 }
1938
1939                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
1940                                                     &iter_dict_entry,
1941                                                     &iter_dict_val,
1942                                                     &iter_array))
1943                         goto nomem;
1944         }
1945
1946         /***** Scan */
1947         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Scan", scans,
1948                                                sizeof(scans) / sizeof(char *)))
1949                 goto nomem;
1950
1951         /***** Modes */
1952         if (res < 0 || !(capa.flags & WPA_DRIVER_FLAGS_AP))
1953                 n--; /* exclude ap mode if it is not supported by the driver */
1954         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Modes", modes, n))
1955                 goto nomem;
1956
1957         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
1958                 goto nomem;
1959         if (!dbus_message_iter_close_container(&iter, &variant_iter))
1960                 goto nomem;
1961
1962         return reply;
1963
1964 nomem:
1965         if (reply)
1966                 dbus_message_unref(reply);
1967
1968         return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
1969 }
1970
1971
1972 /**
1973  * wpas_dbus_getter_state - Get interface state
1974  * @message: Pointer to incoming dbus message
1975  * @wpa_s: wpa_supplicant structure for a network interface
1976  * Returns: A dbus message containing a STRING representing the current
1977  *          interface state
1978  *
1979  * Getter for "State" property.
1980  */
1981 DBusMessage * wpas_dbus_getter_state(DBusMessage *message,
1982                                      struct wpa_supplicant *wpa_s)
1983 {
1984         DBusMessage *reply = NULL;
1985         const char *str_state;
1986         char *state_ls, *tmp;
1987
1988         str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
1989
1990         /* make state string lowercase to fit new DBus API convention
1991          */
1992         state_ls = tmp = os_strdup(str_state);
1993         if (!tmp) {
1994                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
1995                                               NULL);
1996         }
1997         while (*tmp) {
1998                 *tmp = tolower(*tmp);
1999                 tmp++;
2000         }
2001
2002         reply = wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2003                                                  &state_ls);
2004
2005         os_free(state_ls);
2006
2007         return reply;
2008 }
2009
2010
2011 /**
2012  * wpas_dbus_new_iface_get_scanning - Get interface scanning state
2013  * @message: Pointer to incoming dbus message
2014  * @wpa_s: wpa_supplicant structure for a network interface
2015  * Returns: A dbus message containing whether the interface is scanning
2016  *
2017  * Getter for "scanning" property.
2018  */
2019 DBusMessage * wpas_dbus_getter_scanning(DBusMessage *message,
2020                                         struct wpa_supplicant *wpa_s)
2021 {
2022         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
2023         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2024                                                 &scanning);
2025 }
2026
2027
2028 /**
2029  * wpas_dbus_getter_ap_scan - Control roaming mode
2030  * @message: Pointer to incoming dbus message
2031  * @wpa_s: wpa_supplicant structure for a network interface
2032  * Returns: A message containong value of ap_scan variable
2033  *
2034  * Getter function for "ApScan" property.
2035  */
2036 DBusMessage * wpas_dbus_getter_ap_scan(DBusMessage *message,
2037                                        struct wpa_supplicant *wpa_s)
2038 {
2039         dbus_uint32_t ap_scan = wpa_s->conf->ap_scan;
2040         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT32,
2041                                                 &ap_scan);
2042 }
2043
2044
2045 /**
2046  * wpas_dbus_setter_ap_scan - Control roaming mode
2047  * @message: Pointer to incoming dbus message
2048  * @wpa_s: wpa_supplicant structure for a network interface
2049  * Returns: NULL
2050  *
2051  * Setter function for "ApScan" property.
2052  */
2053 DBusMessage * wpas_dbus_setter_ap_scan(DBusMessage *message,
2054                                        struct wpa_supplicant *wpa_s)
2055 {
2056         DBusMessage *reply = NULL;
2057         dbus_uint32_t ap_scan;
2058
2059         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_UINT32,
2060                                                  &ap_scan);
2061         if (reply)
2062                 return reply;
2063
2064         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
2065                 return wpas_dbus_error_invalid_args(
2066                         message, "ap_scan must equal 0, 1 or 2");
2067         }
2068         return NULL;
2069 }
2070
2071
2072 /**
2073  * wpas_dbus_getter_ifname - Get interface name
2074  * @message: Pointer to incoming dbus message
2075  * @wpa_s: wpa_supplicant structure for a network interface
2076  * Returns: A dbus message containing a name of network interface
2077  * associated with with wpa_s
2078  *
2079  * Getter for "Ifname" property.
2080  */
2081 DBusMessage * wpas_dbus_getter_ifname(DBusMessage *message,
2082                                       struct wpa_supplicant *wpa_s)
2083 {
2084         const char *ifname = wpa_s->ifname;
2085         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2086                                                 &ifname);
2087 }
2088
2089
2090 /**
2091  * wpas_dbus_getter_driver - Get interface name
2092  * @message: Pointer to incoming dbus message
2093  * @wpa_s: wpa_supplicant structure for a network interface
2094  * Returns: A dbus message containing a name of network interface
2095  * driver associated with with wpa_s
2096  *
2097  * Getter for "Driver" property.
2098  */
2099 DBusMessage * wpas_dbus_getter_driver(DBusMessage *message,
2100                                       struct wpa_supplicant *wpa_s)
2101 {
2102         const char *driver;
2103
2104         if (wpa_s->driver == NULL || wpa_s->driver->name == NULL) {
2105                 wpa_printf(MSG_DEBUG, "wpas_dbus_getter_driver[dbus]: "
2106                            "wpa_s has no driver set");
2107                 return wpas_dbus_error_unknown_error(message, NULL);
2108         }
2109
2110         driver = wpa_s->driver->name;
2111         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2112                                                 &driver);
2113 }
2114
2115
2116 /**
2117  * wpas_dbus_getter_current_bss - Get current bss object path
2118  * @message: Pointer to incoming dbus message
2119  * @wpa_s: wpa_supplicant structure for a network interface
2120  * Returns: A dbus message containing a DBus object path to
2121  * current BSS
2122  *
2123  * Getter for "CurrentBSS" property.
2124  */
2125 DBusMessage * wpas_dbus_getter_current_bss(DBusMessage *message,
2126                                            struct wpa_supplicant *wpa_s)
2127 {
2128         DBusMessage *reply;
2129         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *bss_obj_path = path_buf;
2130
2131         if (wpa_s->current_bss)
2132                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2133                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2134                             wpa_s->dbus_new_path, wpa_s->current_bss->id);
2135         else
2136                 os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2137
2138         reply = wpas_dbus_simple_property_getter(message,
2139                                                  DBUS_TYPE_OBJECT_PATH,
2140                                                  &bss_obj_path);
2141
2142         return reply;
2143 }
2144
2145
2146 /**
2147  * wpas_dbus_getter_current_network - Get current network object path
2148  * @message: Pointer to incoming dbus message
2149  * @wpa_s: wpa_supplicant structure for a network interface
2150  * Returns: A dbus message containing a DBus object path to
2151  * current network
2152  *
2153  * Getter for "CurrentNetwork" property.
2154  */
2155 DBusMessage * wpas_dbus_getter_current_network(DBusMessage *message,
2156                                                struct wpa_supplicant *wpa_s)
2157 {
2158         DBusMessage *reply;
2159         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *net_obj_path = path_buf;
2160
2161         if (wpa_s->current_ssid)
2162                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
2163                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
2164                             wpa_s->dbus_new_path, wpa_s->current_ssid->id);
2165         else
2166                 os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX, "/");
2167
2168         reply = wpas_dbus_simple_property_getter(message,
2169                                                  DBUS_TYPE_OBJECT_PATH,
2170                                                  &net_obj_path);
2171
2172         return reply;
2173 }
2174
2175
2176 /**
2177  * wpas_dbus_getter_bridge_ifname - Get interface name
2178  * @message: Pointer to incoming dbus message
2179  * @wpa_s: wpa_supplicant structure for a network interface
2180  * Returns: A dbus message containing a name of bridge network
2181  * interface associated with with wpa_s
2182  *
2183  * Getter for "BridgeIfname" property.
2184  */
2185 DBusMessage * wpas_dbus_getter_bridge_ifname(DBusMessage *message,
2186                                              struct wpa_supplicant *wpa_s)
2187 {
2188         const char *bridge_ifname = NULL;
2189
2190         bridge_ifname = wpa_s->bridge_ifname;
2191         if (bridge_ifname == NULL) {
2192                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bridge_ifname[dbus]: "
2193                            "wpa_s has no bridge interface name set");
2194                 return wpas_dbus_error_unknown_error(message, NULL);
2195         }
2196
2197         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2198                                                 &bridge_ifname);
2199 }
2200
2201
2202 /**
2203  * wpas_dbus_getter_bsss - Get array of BSSs objects
2204  * @message: Pointer to incoming dbus message
2205  * @wpa_s: wpa_supplicant structure for a network interface
2206  * Returns: a dbus message containing an array of all known BSS objects
2207  * dbus paths
2208  *
2209  * Getter for "BSSs" property.
2210  */
2211 DBusMessage * wpas_dbus_getter_bsss(DBusMessage *message,
2212                                     struct wpa_supplicant *wpa_s)
2213 {
2214         DBusMessage *reply = NULL;
2215         struct wpa_bss *bss;
2216         char **paths;
2217         unsigned int i = 0;
2218
2219         paths = os_zalloc(wpa_s->num_bss * sizeof(char *));
2220         if (!paths) {
2221                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2222                                               NULL);
2223         }
2224
2225         /* Loop through scan results and append each result's object path */
2226         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
2227                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2228                 if (paths[i] == NULL) {
2229                         reply = dbus_message_new_error(message,
2230                                                        DBUS_ERROR_NO_MEMORY,
2231                                                        NULL);
2232                         goto out;
2233                 }
2234                 /* Construct the object path for this BSS. */
2235                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2236                             "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
2237                             wpa_s->dbus_new_path, bss->id);
2238         }
2239
2240         reply = wpas_dbus_simple_array_property_getter(message,
2241                                                        DBUS_TYPE_OBJECT_PATH,
2242                                                        paths, wpa_s->num_bss);
2243
2244 out:
2245         while (i)
2246                 os_free(paths[--i]);
2247         os_free(paths);
2248         return reply;
2249 }
2250
2251
2252 /**
2253  * wpas_dbus_getter_networks - Get array of networks objects
2254  * @message: Pointer to incoming dbus message
2255  * @wpa_s: wpa_supplicant structure for a network interface
2256  * Returns: a dbus message containing an array of all configured
2257  * networks dbus object paths.
2258  *
2259  * Getter for "Networks" property.
2260  */
2261 DBusMessage * wpas_dbus_getter_networks(DBusMessage *message,
2262                                         struct wpa_supplicant *wpa_s)
2263 {
2264         DBusMessage *reply = NULL;
2265         struct wpa_ssid *ssid;
2266         char **paths;
2267         unsigned int i = 0, num = 0;
2268
2269         if (wpa_s->conf == NULL) {
2270                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_networks[dbus]: "
2271                            "An error occurred getting networks list.");
2272                 return wpas_dbus_error_unknown_error(message, NULL);
2273         }
2274
2275         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
2276                 num++;
2277
2278         paths = os_zalloc(num * sizeof(char *));
2279         if (!paths) {
2280                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2281                                               NULL);
2282         }
2283
2284         /* Loop through configured networks and append object path of each */
2285         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
2286                 paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
2287                 if (paths[i] == NULL) {
2288                         reply = dbus_message_new_error(message,
2289                                                        DBUS_ERROR_NO_MEMORY,
2290                                                        NULL);
2291                         goto out;
2292                 }
2293
2294                 /* Construct the object path for this network. */
2295                 os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
2296                             "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
2297                             wpa_s->dbus_new_path, ssid->id);
2298         }
2299
2300         reply = wpas_dbus_simple_array_property_getter(message,
2301                                                        DBUS_TYPE_OBJECT_PATH,
2302                                                        paths, num);
2303
2304 out:
2305         while (i)
2306                 os_free(paths[--i]);
2307         os_free(paths);
2308         return reply;
2309 }
2310
2311
2312 /**
2313  * wpas_dbus_getter_blobs - Get all blobs defined for this interface
2314  * @message: Pointer to incoming dbus message
2315  * @wpa_s: wpa_supplicant structure for a network interface
2316  * Returns: a dbus message containing a dictionary of pairs (blob_name, blob)
2317  *
2318  * Getter for "Blobs" property.
2319  */
2320 DBusMessage * wpas_dbus_getter_blobs(DBusMessage *message,
2321                                      struct wpa_supplicant *wpa_s)
2322 {
2323         DBusMessage *reply = NULL;
2324         DBusMessageIter iter, variant_iter, dict_iter, entry_iter, array_iter;
2325         struct wpa_config_blob *blob;
2326
2327         if (message == NULL)
2328                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2329         else
2330                 reply = dbus_message_new_method_return(message);
2331         if (!reply)
2332                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2333                                               NULL);
2334
2335         dbus_message_iter_init_append(reply, &iter);
2336
2337         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2338                                               "a{say}", &variant_iter) ||
2339             !dbus_message_iter_open_container(&variant_iter, DBUS_TYPE_ARRAY,
2340                                               "{say}", &dict_iter)) {
2341                 dbus_message_unref(reply);
2342                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2343                                               NULL);
2344         }
2345
2346         blob = wpa_s->conf->blobs;
2347         while (blob) {
2348                 if (!dbus_message_iter_open_container(&dict_iter,
2349                                                       DBUS_TYPE_DICT_ENTRY,
2350                                                       NULL, &entry_iter) ||
2351                     !dbus_message_iter_append_basic(&entry_iter,
2352                                                     DBUS_TYPE_STRING,
2353                                                     &(blob->name)) ||
2354                     !dbus_message_iter_open_container(&entry_iter,
2355                                                       DBUS_TYPE_ARRAY,
2356                                                       DBUS_TYPE_BYTE_AS_STRING,
2357                                                       &array_iter) ||
2358                     !dbus_message_iter_append_fixed_array(&array_iter,
2359                                                           DBUS_TYPE_BYTE,
2360                                                           &(blob->data),
2361                                                           blob->len) ||
2362                     !dbus_message_iter_close_container(&entry_iter,
2363                                                        &array_iter) ||
2364                     !dbus_message_iter_close_container(&dict_iter,
2365                                                        &entry_iter)) {
2366                         dbus_message_unref(reply);
2367                         return dbus_message_new_error(message,
2368                                                       DBUS_ERROR_NO_MEMORY,
2369                                                       NULL);
2370                 }
2371
2372                 blob = blob->next;
2373         }
2374
2375         if (!dbus_message_iter_close_container(&variant_iter, &dict_iter) ||
2376             !dbus_message_iter_close_container(&iter, &variant_iter)) {
2377                 dbus_message_unref(reply);
2378                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2379                                               NULL);
2380         }
2381
2382         return reply;
2383 }
2384
2385
2386 /**
2387  * wpas_dbus_getter_bss_bssid - Return the BSSID of a BSS
2388  * @message: Pointer to incoming dbus message
2389  * @bss: a pair of interface describing structure and bss's id
2390  * Returns: a dbus message containing the bssid for the requested bss
2391  *
2392  * Getter for "BSSID" property.
2393  */
2394 DBusMessage * wpas_dbus_getter_bss_bssid(DBusMessage *message,
2395                                          struct bss_handler_args *bss)
2396 {
2397         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2398
2399         if (!res) {
2400                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_bssid[dbus]: no "
2401                            "bss with id %d found", bss->id);
2402                 return NULL;
2403         }
2404
2405         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2406                                                       res->bssid, ETH_ALEN);
2407 }
2408
2409
2410 /**
2411  * wpas_dbus_getter_bss_ssid - Return the SSID of a BSS
2412  * @message: Pointer to incoming dbus message
2413  * @bss: a pair of interface describing structure and bss's id
2414  * Returns: a dbus message containing the ssid for the requested bss
2415  *
2416  * Getter for "SSID" property.
2417  */
2418 DBusMessage * wpas_dbus_getter_bss_ssid(DBusMessage *message,
2419                                               struct bss_handler_args *bss)
2420 {
2421         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2422
2423         if (!res) {
2424                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ssid[dbus]: no "
2425                            "bss with id %d found", bss->id);
2426                 return NULL;
2427         }
2428
2429         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2430                                                       res->ssid,
2431                                                       res->ssid_len);
2432 }
2433
2434
2435 /**
2436  * wpas_dbus_getter_bss_privacy - Return the privacy flag of a BSS
2437  * @message: Pointer to incoming dbus message
2438  * @bss: a pair of interface describing structure and bss's id
2439  * Returns: a dbus message containing the privacy flag value of requested bss
2440  *
2441  * Getter for "Privacy" property.
2442  */
2443 DBusMessage * wpas_dbus_getter_bss_privacy(DBusMessage *message,
2444                                            struct bss_handler_args *bss)
2445 {
2446         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2447         dbus_bool_t privacy;
2448
2449         if (!res) {
2450                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_privacy[dbus]: no "
2451                            "bss with id %d found", bss->id);
2452                 return NULL;
2453         }
2454
2455         privacy = (res->caps & IEEE80211_CAP_PRIVACY) ? TRUE : FALSE;
2456         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2457                                                 &privacy);
2458 }
2459
2460
2461 /**
2462  * wpas_dbus_getter_bss_mode - Return the mode of a BSS
2463  * @message: Pointer to incoming dbus message
2464  * @bss: a pair of interface describing structure and bss's id
2465  * Returns: a dbus message containing the mode of requested bss
2466  *
2467  * Getter for "Mode" property.
2468  */
2469 DBusMessage * wpas_dbus_getter_bss_mode(DBusMessage *message,
2470                                         struct bss_handler_args *bss)
2471 {
2472         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2473         const char *mode;
2474
2475         if (!res) {
2476                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_mode[dbus]: no "
2477                            "bss with id %d found", bss->id);
2478                 return NULL;
2479         }
2480
2481         if (res->caps & IEEE80211_CAP_IBSS)
2482                 mode = "ad-hoc";
2483         else
2484                 mode = "infrastructure";
2485
2486         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_STRING,
2487                                                 &mode);
2488 }
2489
2490
2491 /**
2492  * wpas_dbus_getter_bss_level - Return the signal strength of a BSS
2493  * @message: Pointer to incoming dbus message
2494  * @bss: a pair of interface describing structure and bss's id
2495  * Returns: a dbus message containing the signal strength of requested bss
2496  *
2497  * Getter for "Level" property.
2498  */
2499 DBusMessage * wpas_dbus_getter_bss_signal(DBusMessage *message,
2500                                           struct bss_handler_args *bss)
2501 {
2502         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2503
2504         if (!res) {
2505                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_signal[dbus]: no "
2506                            "bss with id %d found", bss->id);
2507                 return NULL;
2508         }
2509
2510         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_INT16,
2511                                                 &res->level);
2512 }
2513
2514
2515 /**
2516  * wpas_dbus_getter_bss_frequency - Return the frequency of a BSS
2517  * @message: Pointer to incoming dbus message
2518  * @bss: a pair of interface describing structure and bss's id
2519  * Returns: a dbus message containing the frequency of requested bss
2520  *
2521  * Getter for "Frequency" property.
2522  */
2523 DBusMessage * wpas_dbus_getter_bss_frequency(DBusMessage *message,
2524                                              struct bss_handler_args *bss)
2525 {
2526         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2527
2528         if (!res) {
2529                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_frequency[dbus]: "
2530                            "no bss with id %d found", bss->id);
2531                 return NULL;
2532         }
2533
2534         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_UINT16,
2535                                                 &res->freq);
2536 }
2537
2538
2539 static int cmp_u8s_desc(const void *a, const void *b)
2540 {
2541         return (*(u8 *) b - *(u8 *) a);
2542 }
2543
2544
2545 /**
2546  * wpas_dbus_getter_bss_rates - Return available bit rates of a BSS
2547  * @message: Pointer to incoming dbus message
2548  * @bss: a pair of interface describing structure and bss's id
2549  * Returns: a dbus message containing sorted array of bit rates
2550  *
2551  * Getter for "Rates" property.
2552  */
2553 DBusMessage * wpas_dbus_getter_bss_rates(DBusMessage *message,
2554                                             struct bss_handler_args *bss)
2555 {
2556         DBusMessage *reply;
2557         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2558         u8 *ie_rates = NULL;
2559         u32 *real_rates;
2560         int rates_num, i;
2561
2562         if (!res) {
2563                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rates[dbus]: "
2564                            "no bss with id %d found", bss->id);
2565                 return NULL;
2566         }
2567
2568         rates_num = wpa_bss_get_bit_rates(res, &ie_rates);
2569         if (rates_num < 0)
2570                 return NULL;
2571
2572         qsort(ie_rates, rates_num, 1, cmp_u8s_desc);
2573
2574         real_rates = os_malloc(sizeof(u32) * rates_num);
2575         if (!real_rates) {
2576                 os_free(ie_rates);
2577                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2578                                               NULL);
2579         }
2580
2581         for (i = 0; i < rates_num; i++)
2582                 real_rates[i] = ie_rates[i] * 500000;
2583
2584         reply = wpas_dbus_simple_array_property_getter(message,
2585                                                        DBUS_TYPE_UINT32,
2586                                                        real_rates, rates_num);
2587
2588         os_free(ie_rates);
2589         os_free(real_rates);
2590         return reply;
2591 }
2592
2593
2594 static DBusMessage * wpas_dbus_get_bss_security_prop(
2595         DBusMessage *message, struct wpa_ie_data *ie_data)
2596 {
2597         DBusMessage *reply;
2598         DBusMessageIter iter, iter_dict, variant_iter;
2599         const char *group;
2600         const char *pairwise[2]; /* max 2 pairwise ciphers is supported */
2601         const char *key_mgmt[7]; /* max 7 key managements may be supported */
2602         int n;
2603
2604         if (message == NULL)
2605                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2606         else
2607                 reply = dbus_message_new_method_return(message);
2608         if (!reply)
2609                 goto nomem;
2610
2611         dbus_message_iter_init_append(reply, &iter);
2612         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2613                                               "a{sv}", &variant_iter))
2614                 goto nomem;
2615
2616         if (!wpa_dbus_dict_open_write(&variant_iter, &iter_dict))
2617                 goto nomem;
2618
2619         /* KeyMgmt */
2620         n = 0;
2621         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK)
2622                 key_mgmt[n++] = "wpa-psk";
2623         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_PSK)
2624                 key_mgmt[n++] = "wpa-ft-psk";
2625         if (ie_data->key_mgmt & WPA_KEY_MGMT_PSK_SHA256)
2626                 key_mgmt[n++] = "wpa-psk-sha256";
2627         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X)
2628                 key_mgmt[n++] = "wpa-eap";
2629         if (ie_data->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X)
2630                 key_mgmt[n++] = "wpa-ft-eap";
2631         if (ie_data->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256)
2632                 key_mgmt[n++] = "wpa-eap-sha256";
2633         if (ie_data->key_mgmt & WPA_KEY_MGMT_NONE)
2634                 key_mgmt[n++] = "wpa-none";
2635
2636         if (!wpa_dbus_dict_append_string_array(&iter_dict, "KeyMgmt",
2637                                                key_mgmt, n))
2638                 goto nomem;
2639
2640         /* Group */
2641         switch (ie_data->group_cipher) {
2642         case WPA_CIPHER_WEP40:
2643                 group = "wep40";
2644                 break;
2645         case WPA_CIPHER_TKIP:
2646                 group = "tkip";
2647                 break;
2648         case WPA_CIPHER_CCMP:
2649                 group = "ccmp";
2650                 break;
2651         case WPA_CIPHER_WEP104:
2652                 group = "wep104";
2653                 break;
2654         default:
2655                 group = "";
2656                 break;
2657         }
2658
2659         if (!wpa_dbus_dict_append_string(&iter_dict, "Group", group))
2660                 goto nomem;
2661
2662         /* Pairwise */
2663         n = 0;
2664         if (ie_data->pairwise_cipher & WPA_CIPHER_TKIP)
2665                 pairwise[n++] = "tkip";
2666         if (ie_data->pairwise_cipher & WPA_CIPHER_CCMP)
2667                 pairwise[n++] = "ccmp";
2668
2669         if (!wpa_dbus_dict_append_string_array(&iter_dict, "Pairwise",
2670                                                pairwise, n))
2671                 goto nomem;
2672
2673         /* Management group (RSN only) */
2674         if (ie_data->proto == WPA_PROTO_RSN) {
2675                 switch (ie_data->mgmt_group_cipher) {
2676 #ifdef CONFIG_IEEE80211W
2677                 case WPA_CIPHER_AES_128_CMAC:
2678                         group = "aes128cmac";
2679                         break;
2680 #endif /* CONFIG_IEEE80211W */
2681                 default:
2682                         group = "";
2683                         break;
2684                 }
2685
2686                 if (!wpa_dbus_dict_append_string(&iter_dict, "MgmtGroup",
2687                                                  group))
2688                         goto nomem;
2689         }
2690
2691         if (!wpa_dbus_dict_close_write(&variant_iter, &iter_dict))
2692                 goto nomem;
2693         if (!dbus_message_iter_close_container(&iter, &variant_iter))
2694                 goto nomem;
2695
2696         return reply;
2697
2698 nomem:
2699         if (reply)
2700                 dbus_message_unref(reply);
2701
2702         return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY, NULL);
2703 }
2704
2705
2706 /**
2707  * wpas_dbus_getter_bss_wpa - Return the WPA options of a BSS
2708  * @message: Pointer to incoming dbus message
2709  * @bss: a pair of interface describing structure and bss's id
2710  * Returns: a dbus message containing the WPA options of requested bss
2711  *
2712  * Getter for "WPA" property.
2713  */
2714 DBusMessage * wpas_dbus_getter_bss_wpa(DBusMessage *message,
2715                                        struct bss_handler_args *bss)
2716 {
2717         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2718         struct wpa_ie_data wpa_data;
2719         const u8 *ie;
2720
2721         if (!res) {
2722                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_wpa[dbus]: no "
2723                            "bss with id %d found", bss->id);
2724                 return NULL;
2725         }
2726
2727         os_memset(&wpa_data, 0, sizeof(wpa_data));
2728         ie = wpa_bss_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
2729         if (ie) {
2730                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
2731                         return wpas_dbus_error_unknown_error(message,
2732                                                              "invalid WPA IE");
2733         }
2734
2735         return wpas_dbus_get_bss_security_prop(message, &wpa_data);
2736 }
2737
2738
2739 /**
2740  * wpas_dbus_getter_bss_rsn - Return the RSN options of a BSS
2741  * @message: Pointer to incoming dbus message
2742  * @bss: a pair of interface describing structure and bss's id
2743  * Returns: a dbus message containing the RSN options of requested bss
2744  *
2745  * Getter for "RSN" property.
2746  */
2747 DBusMessage * wpas_dbus_getter_bss_rsn(DBusMessage *message,
2748                                        struct bss_handler_args *bss)
2749 {
2750         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2751         struct wpa_ie_data wpa_data;
2752         const u8 *ie;
2753
2754         if (!res) {
2755                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_rsn[dbus]: no "
2756                            "bss with id %d found", bss->id);
2757                 return NULL;
2758         }
2759
2760         os_memset(&wpa_data, 0, sizeof(wpa_data));
2761         ie = wpa_bss_get_ie(res, WLAN_EID_RSN);
2762         if (ie) {
2763                 if (wpa_parse_wpa_ie(ie, 2 + ie[1], &wpa_data) < 0)
2764                         return wpas_dbus_error_unknown_error(message,
2765                                                              "invalid RSN IE");
2766         }
2767
2768         return wpas_dbus_get_bss_security_prop(message, &wpa_data);
2769 }
2770
2771
2772 /**
2773  * wpas_dbus_getter_bss_ies - Return all IEs of a BSS
2774  * @message: Pointer to incoming dbus message
2775  * @bss: a pair of interface describing structure and bss's id
2776  * Returns: a dbus message containing IEs byte array
2777  *
2778  * Getter for "IEs" property.
2779  */
2780 DBusMessage * wpas_dbus_getter_bss_ies(DBusMessage *message,
2781                                        struct bss_handler_args *bss)
2782 {
2783         struct wpa_bss *res = wpa_bss_get_id(bss->wpa_s, bss->id);
2784
2785         if (!res) {
2786                 wpa_printf(MSG_ERROR, "wpas_dbus_getter_bss_ies[dbus]: no "
2787                            "bss with id %d found", bss->id);
2788                 return NULL;
2789         }
2790
2791         return wpas_dbus_simple_array_property_getter(message, DBUS_TYPE_BYTE,
2792                                                       res + 1, res->ie_len);
2793 }
2794
2795
2796 /**
2797  * wpas_dbus_getter_enabled - Check whether network is enabled or disabled
2798  * @message: Pointer to incoming dbus message
2799  * @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
2800  * and wpa_ssid structure for a configured network
2801  * Returns: DBus message with boolean indicating state of configured network
2802  * or DBus error on failure
2803  *
2804  * Getter for "enabled" property of a configured network.
2805  */
2806 DBusMessage * wpas_dbus_getter_enabled(DBusMessage *message,
2807                                        struct network_handler_args *net)
2808 {
2809         dbus_bool_t enabled = net->ssid->disabled ? FALSE : TRUE;
2810         return wpas_dbus_simple_property_getter(message, DBUS_TYPE_BOOLEAN,
2811                                                 &enabled);
2812 }
2813
2814
2815 /**
2816  * wpas_dbus_setter_enabled - Mark a configured network as enabled or disabled
2817  * @message: Pointer to incoming dbus message
2818  * @wpas_dbus_setter_enabled: wpa_supplicant structure for a network interface
2819  * and wpa_ssid structure for a configured network
2820  * Returns: NULL indicating success or DBus error on failure
2821  *
2822  * Setter for "Enabled" property of a configured network.
2823  */
2824 DBusMessage * wpas_dbus_setter_enabled(DBusMessage *message,
2825                                        struct network_handler_args *net)
2826 {
2827         DBusMessage *reply = NULL;
2828
2829         struct wpa_supplicant *wpa_s;
2830         struct wpa_ssid *ssid;
2831
2832         dbus_bool_t enable;
2833
2834         reply = wpas_dbus_simple_property_setter(message, DBUS_TYPE_BOOLEAN,
2835                                                  &enable);
2836
2837         if (reply)
2838                 return reply;
2839
2840         wpa_s = net->wpa_s;
2841         ssid = net->ssid;
2842
2843         if (enable)
2844                 wpa_supplicant_enable_network(wpa_s, ssid);
2845         else
2846                 wpa_supplicant_disable_network(wpa_s, ssid);
2847
2848         return NULL;
2849 }
2850
2851
2852 /**
2853  * wpas_dbus_getter_network_properties - Get options for a configured network
2854  * @message: Pointer to incoming dbus message
2855  * @net: wpa_supplicant structure for a network interface and
2856  * wpa_ssid structure for a configured network
2857  * Returns: DBus message with network properties or DBus error on failure
2858  *
2859  * Getter for "Properties" property of a configured network.
2860  */
2861 DBusMessage * wpas_dbus_getter_network_properties(
2862         DBusMessage *message, struct network_handler_args *net)
2863 {
2864         DBusMessage *reply = NULL;
2865         DBusMessageIter iter, variant_iter, dict_iter;
2866         char **iterator;
2867         char **props = wpa_config_get_all(net->ssid, 0);
2868         if (!props)
2869                 return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2870                                               NULL);
2871
2872         if (message == NULL)
2873                 reply = dbus_message_new(DBUS_MESSAGE_TYPE_SIGNAL);
2874         else
2875                 reply = dbus_message_new_method_return(message);
2876         if (!reply) {
2877                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2878                                                NULL);
2879                 goto out;
2880         }
2881
2882         dbus_message_iter_init_append(reply, &iter);
2883
2884         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_VARIANT,
2885                         "a{sv}", &variant_iter) ||
2886             !wpa_dbus_dict_open_write(&variant_iter, &dict_iter)) {
2887                 dbus_message_unref(reply);
2888                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2889                                                NULL);
2890                 goto out;
2891         }
2892
2893         iterator = props;
2894         while (*iterator) {
2895                 if (!wpa_dbus_dict_append_string(&dict_iter, *iterator,
2896                                                  *(iterator + 1))) {
2897                         dbus_message_unref(reply);
2898                         reply = dbus_message_new_error(message,
2899                                                        DBUS_ERROR_NO_MEMORY,
2900                                                        NULL);
2901                         goto out;
2902                 }
2903                 iterator += 2;
2904         }
2905
2906
2907         if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
2908             !dbus_message_iter_close_container(&iter, &variant_iter)) {
2909                 dbus_message_unref(reply);
2910                 reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
2911                                                NULL);
2912                 goto out;
2913         }
2914
2915 out:
2916         iterator = props;
2917         while (*iterator) {
2918                 os_free(*iterator);
2919                 iterator++;
2920         }
2921         os_free(props);
2922         return reply;
2923 }
2924
2925
2926 /**
2927  * wpas_dbus_setter_network_properties - Set options for a configured network
2928  * @message: Pointer to incoming dbus message
2929  * @net: wpa_supplicant structure for a network interface and
2930  * wpa_ssid structure for a configured network
2931  * Returns: NULL indicating success or DBus error on failure
2932  *
2933  * Setter for "Properties" property of a configured network.
2934  */
2935 DBusMessage * wpas_dbus_setter_network_properties(
2936         DBusMessage *message, struct network_handler_args *net)
2937 {
2938         struct wpa_ssid *ssid = net->ssid;
2939
2940         DBusMessage *reply = NULL;
2941         DBusMessageIter iter, variant_iter;
2942
2943         dbus_message_iter_init(message, &iter);
2944
2945         dbus_message_iter_next(&iter);
2946         dbus_message_iter_next(&iter);
2947
2948         dbus_message_iter_recurse(&iter, &variant_iter);
2949
2950         reply = set_network_properties(message, net->wpa_s, ssid,
2951                                        &variant_iter);
2952         if (reply)
2953                 wpa_printf(MSG_DEBUG, "dbus control interface couldn't set "
2954                            "network properties");
2955
2956         return reply;
2957 }