wpa_supplicant/dbus/dbus_old_handlers.c

   1 /*
   2  * WPA Supplicant / dbus-based control interface
   3  * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10 #include <dbus/dbus.h>
  11
  12 #include "common.h"
  13 #include "eap_peer/eap_methods.h"
  14 #include "common/ieee802_11_defs.h"
  15 #include "eapol_supp/eapol_supp_sm.h"
  16 #include "rsn_supp/wpa.h"
  17 #include "../config.h"
  18 #include "../wpa_supplicant_i.h"
  19 #include "../driver_i.h"
  20 #include "../notify.h"
  21 #include "../wpas_glue.h"
  22 #include "../bss.h"
  23 #include "../scan.h"
  24 #include "dbus_old.h"
  25 #include "dbus_old_handlers.h"
  26 #include "dbus_dict_helpers.h"
  27
  28 /**
  29  * wpas_dbus_new_invalid_opts_error - Return a new invalid options error message
  30  * @message: Pointer to incoming dbus message this error refers to
  31  * Returns: a dbus error message
  32  *
  33  * Convenience function to create and return an invalid options error
  34  */
  35 DBusMessage * wpas_dbus_new_invalid_opts_error(DBusMessage *message,
  36                                                const char *arg)
  37 {
  38         DBusMessage *reply;
  39
  40         reply = dbus_message_new_error(message, WPAS_ERROR_INVALID_OPTS,
  41                                        "Did not receive correct message "
  42                                        "arguments.");
  43         if (arg != NULL)
  44                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
  45                                          DBUS_TYPE_INVALID);
  46
  47         return reply;
  48 }
  49
  50
  51 /**
  52  * wpas_dbus_new_success_reply - Return a new success reply message
  53  * @message: Pointer to incoming dbus message this reply refers to
  54  * Returns: a dbus message containing a single UINT32 that indicates
  55  *          success (ie, a value of 1)
  56  *
  57  * Convenience function to create and return a success reply message
  58  */
  59 DBusMessage * wpas_dbus_new_success_reply(DBusMessage *message)
  60 {
  61         DBusMessage *reply;
  62         unsigned int success = 1;
  63
  64         reply = dbus_message_new_method_return(message);
  65         dbus_message_append_args(reply, DBUS_TYPE_UINT32, &success,
  66                                  DBUS_TYPE_INVALID);
  67         return reply;
  68 }
  69
  70
  71 /**
  72  * wpas_dbus_global_add_interface - Request registration of a network interface
  73  * @message: Pointer to incoming dbus message
  74  * @global: %wpa_supplicant global data structure
  75  * Returns: The object path of the new interface object,
  76  *          or a dbus error message with more information
  77  *
  78  * Handler function for "addInterface" method call. Handles requests
  79  * by dbus clients to register a network interface that wpa_supplicant
  80  * will manage.
  81  */
  82 DBusMessage * wpas_dbus_global_add_interface(DBusMessage *message,
  83                                              struct wpa_global *global)
  84 {
  85         char *ifname = NULL;
  86         char *driver = NULL;
  87         char *driver_param = NULL;
  88         char *confname = NULL;
  89         char *bridge_ifname = NULL;
  90         DBusMessage *reply = NULL;
  91         DBusMessageIter iter;
  92
  93         dbus_message_iter_init(message, &iter);
  94
  95         /* First argument: interface name (DBUS_TYPE_STRING)
  96          *    Required; must be non-zero length
  97          */
  98         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
  99                 goto error;
 100         dbus_message_iter_get_basic(&iter, &ifname);
 101         if (!os_strlen(ifname))
 102                 goto error;
 103
 104         /* Second argument: dict of options */
 105         if (dbus_message_iter_next(&iter)) {
 106                 DBusMessageIter iter_dict;
 107                 struct wpa_dbus_dict_entry entry;
 108
 109                 if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
 110                         goto error;
 111                 while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 112                         if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
 113                                 goto error;
 114                         if (!strcmp(entry.key, "driver") &&
 115                             (entry.type == DBUS_TYPE_STRING)) {
 116                                 os_free(driver);
 117                                 driver = os_strdup(entry.str_value);
 118                                 wpa_dbus_dict_entry_clear(&entry);
 119                                 if (driver == NULL)
 120                                         goto error;
 121                         } else if (!strcmp(entry.key, "driver-params") &&
 122                                    (entry.type == DBUS_TYPE_STRING)) {
 123                                 os_free(driver_param);
 124                                 driver_param = os_strdup(entry.str_value);
 125                                 wpa_dbus_dict_entry_clear(&entry);
 126                                 if (driver_param == NULL)
 127                                         goto error;
 128                         } else if (!strcmp(entry.key, "config-file") &&
 129                                    (entry.type == DBUS_TYPE_STRING)) {
 130                                 os_free(confname);
 131                                 confname = os_strdup(entry.str_value);
 132                                 wpa_dbus_dict_entry_clear(&entry);
 133                                 if (confname == NULL)
 134                                         goto error;
 135                         } else if (!strcmp(entry.key, "bridge-ifname") &&
 136                                    (entry.type == DBUS_TYPE_STRING)) {
 137                                 os_free(bridge_ifname);
 138                                 bridge_ifname = os_strdup(entry.str_value);
 139                                 wpa_dbus_dict_entry_clear(&entry);
 140                                 if (bridge_ifname == NULL)
 141                                         goto error;
 142                         } else {
 143                                 wpa_dbus_dict_entry_clear(&entry);
 144                                 goto error;
 145                         }
 146                 }
 147         }
 148
 149         /*
 150          * Try to get the wpa_supplicant record for this iface, return
 151          * an error if we already control it.
 152          */
 153         if (wpa_supplicant_get_iface(global, ifname) != NULL) {
 154                 reply = dbus_message_new_error(message,
 155                                                WPAS_ERROR_EXISTS_ERROR,
 156                                                "wpa_supplicant already "
 157                                                "controls this interface.");
 158         } else {
 159                 struct wpa_supplicant *wpa_s;
 160                 struct wpa_interface iface;
 161                 os_memset(&iface, 0, sizeof(iface));
 162                 iface.ifname = ifname;
 163                 iface.driver = driver;
 164                 iface.driver_param = driver_param;
 165                 iface.confname = confname;
 166                 iface.bridge_ifname = bridge_ifname;
 167                 /* Otherwise, have wpa_supplicant attach to it. */
 168                 if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
 169                         const char *path = wpa_s->dbus_path;
 170                         reply = dbus_message_new_method_return(message);
 171                         dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
 172                                                  &path, DBUS_TYPE_INVALID);
 173                 } else {
 174                         reply = dbus_message_new_error(message,
 175                                                        WPAS_ERROR_ADD_ERROR,
 176                                                        "wpa_supplicant "
 177                                                        "couldn't grab this "
 178                                                        "interface.");
 179                 }
 180         }
 181
 182 out:
 183         os_free(driver);
 184         os_free(driver_param);
 185         os_free(confname);
 186         os_free(bridge_ifname);
 187         return reply;
 188
 189 error:
 190         reply = wpas_dbus_new_invalid_opts_error(message, NULL);
 191         goto out;
 192 }
 193
 194
 195 /**
 196  * wpas_dbus_global_remove_interface - Request deregistration of an interface
 197  * @message: Pointer to incoming dbus message
 198  * @global: wpa_supplicant global data structure
 199  * Returns: a dbus message containing a UINT32 indicating success (1) or
 200  *          failure (0), or returns a dbus error message with more information
 201  *
 202  * Handler function for "removeInterface" method call.  Handles requests
 203  * by dbus clients to deregister a network interface that wpa_supplicant
 204  * currently manages.
 205  */
 206 DBusMessage * wpas_dbus_global_remove_interface(DBusMessage *message,
 207                                                 struct wpa_global *global)
 208 {
 209         struct wpa_supplicant *wpa_s;
 210         char *path;
 211         DBusMessage *reply = NULL;
 212
 213         if (!dbus_message_get_args(message, NULL,
 214                                    DBUS_TYPE_OBJECT_PATH, &path,
 215                                    DBUS_TYPE_INVALID)) {
 216                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
 217                 goto out;
 218         }
 219
 220         wpa_s = wpa_supplicant_get_iface_by_dbus_path(global, path);
 221         if (wpa_s == NULL) {
 222                 reply = wpas_dbus_new_invalid_iface_error(message);
 223                 goto out;
 224         }
 225
 226         if (!wpa_supplicant_remove_iface(global, wpa_s, 0)) {
 227                 reply = wpas_dbus_new_success_reply(message);
 228         } else {
 229                 reply = dbus_message_new_error(message,
 230                                                WPAS_ERROR_REMOVE_ERROR,
 231                                                "wpa_supplicant couldn't "
 232                                                "remove this interface.");
 233         }
 234
 235 out:
 236         return reply;
 237 }
 238
 239
 240 /**
 241  * wpas_dbus_global_get_interface - Get the object path for an interface name
 242  * @message: Pointer to incoming dbus message
 243  * @global: %wpa_supplicant global data structure
 244  * Returns: The object path of the interface object,
 245  *          or a dbus error message with more information
 246  *
 247  * Handler function for "getInterface" method call. Handles requests
 248  * by dbus clients for the object path of an specific network interface.
 249  */
 250 DBusMessage * wpas_dbus_global_get_interface(DBusMessage *message,
 251                                              struct wpa_global *global)
 252 {
 253         DBusMessage *reply = NULL;
 254         const char *ifname;
 255         const char *path;
 256         struct wpa_supplicant *wpa_s;
 257
 258         if (!dbus_message_get_args(message, NULL,
 259                                    DBUS_TYPE_STRING, &ifname,
 260                                    DBUS_TYPE_INVALID)) {
 261                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
 262                 goto out;
 263         }
 264
 265         wpa_s = wpa_supplicant_get_iface(global, ifname);
 266         if (wpa_s == NULL) {
 267                 reply = wpas_dbus_new_invalid_iface_error(message);
 268                 goto out;
 269         }
 270
 271         path = wpa_s->dbus_path;
 272         reply = dbus_message_new_method_return(message);
 273         dbus_message_append_args(reply,
 274                                  DBUS_TYPE_OBJECT_PATH, &path,
 275                                  DBUS_TYPE_INVALID);
 276
 277 out:
 278         return reply;
 279 }
 280
 281
 282 /**
 283  * wpas_dbus_global_set_debugparams- Set the debug params
 284  * @message: Pointer to incoming dbus message
 285  * @global: %wpa_supplicant global data structure
 286  * Returns: a dbus message containing a UINT32 indicating success (1) or
 287  *          failure (0), or returns a dbus error message with more information
 288  *
 289  * Handler function for "setDebugParams" method call. Handles requests
 290  * by dbus clients for the object path of an specific network interface.
 291  */
 292 DBusMessage * wpas_dbus_global_set_debugparams(DBusMessage *message,
 293                                                struct wpa_global *global)
 294 {
 295         DBusMessage *reply = NULL;
 296         int debug_level;
 297         dbus_bool_t debug_timestamp;
 298         dbus_bool_t debug_show_keys;
 299
 300         if (!dbus_message_get_args(message, NULL,
 301                                    DBUS_TYPE_INT32, &debug_level,
 302                                    DBUS_TYPE_BOOLEAN, &debug_timestamp,
 303                                    DBUS_TYPE_BOOLEAN, &debug_show_keys,
 304                                    DBUS_TYPE_INVALID)) {
 305                 return wpas_dbus_new_invalid_opts_error(message, NULL);
 306         }
 307
 308         if (wpa_supplicant_set_debug_params(global, debug_level,
 309                                             debug_timestamp ? 1 : 0,
 310                                             debug_show_keys ? 1 : 0)) {
 311                 return wpas_dbus_new_invalid_opts_error(message, NULL);
 312         }
 313
 314         reply = wpas_dbus_new_success_reply(message);
 315
 316         return reply;
 317 }
 318
 319
 320 /**
 321  * wpas_dbus_iface_scan - Request a wireless scan on an interface
 322  * @message: Pointer to incoming dbus message
 323  * @wpa_s: wpa_supplicant structure for a network interface
 324  * Returns: a dbus message containing a UINT32 indicating success (1) or
 325  *          failure (0)
 326  *
 327  * Handler function for "scan" method call of a network device. Requests
 328  * that wpa_supplicant perform a wireless scan as soon as possible
 329  * on a particular wireless interface.
 330  */
 331 DBusMessage * wpas_dbus_iface_scan(DBusMessage *message,
 332                                    struct wpa_supplicant *wpa_s)
 333 {
 334         wpa_s->scan_req = MANUAL_SCAN_REQ;
 335         wpa_supplicant_req_scan(wpa_s, 0, 0);
 336         return wpas_dbus_new_success_reply(message);
 337 }
 338
 339
 340 /**
 341  * wpas_dbus_iface_scan_results - Get the results of a recent scan request
 342  * @message: Pointer to incoming dbus message
 343  * @wpa_s: wpa_supplicant structure for a network interface
 344  * Returns: a dbus message containing a dbus array of objects paths, or returns
 345  *          a dbus error message if not scan results could be found
 346  *
 347  * Handler function for "scanResults" method call of a network device. Returns
 348  * a dbus message containing the object paths of wireless networks found.
 349  */
 350 DBusMessage * wpas_dbus_iface_scan_results(DBusMessage *message,
 351                                            struct wpa_supplicant *wpa_s)
 352 {
 353         DBusMessage *reply;
 354         DBusMessageIter iter;
 355         DBusMessageIter sub_iter;
 356         struct wpa_bss *bss;
 357
 358         /* Create and initialize the return message */
 359         reply = dbus_message_new_method_return(message);
 360         dbus_message_iter_init_append(reply, &iter);
 361         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
 362                                               DBUS_TYPE_OBJECT_PATH_AS_STRING,
 363                                               &sub_iter))
 364                 goto error;
 365
 366         /* Loop through scan results and append each result's object path */
 367         dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
 368                 char path_buf[WPAS_DBUS_OBJECT_PATH_MAX];
 369                 char *path = path_buf;
 370
 371                 /* Construct the object path for this network.  Note that ':'
 372                  * is not a valid character in dbus object paths.
 373                  */
 374                 os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
 375                             "%s/" WPAS_DBUS_BSSIDS_PART "/"
 376                             WPAS_DBUS_BSSID_FORMAT,
 377                             wpa_s->dbus_path, MAC2STR(bss->bssid));
 378                 if (!dbus_message_iter_append_basic(&sub_iter,
 379                                                     DBUS_TYPE_OBJECT_PATH,
 380                                                     &path))
 381                         goto error;
 382         }
 383
 384         if (!dbus_message_iter_close_container(&iter, &sub_iter))
 385                 goto error;
 386
 387         return reply;
 388
 389 error:
 390         dbus_message_unref(reply);
 391         return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
 392                                       "an internal error occurred returning scan results");
 393 }
 394
 395
 396 /**
 397  * wpas_dbus_bssid_properties - Return the properties of a scanned network
 398  * @message: Pointer to incoming dbus message
 399  * @wpa_s: wpa_supplicant structure for a network interface
 400  * @res: wpa_supplicant scan result for which to get properties
 401  * Returns: a dbus message containing the properties for the requested network
 402  *
 403  * Handler function for "properties" method call of a scanned network.
 404  * Returns a dbus message containing the the properties.
 405  */
 406 DBusMessage * wpas_dbus_bssid_properties(DBusMessage *message,
 407                                          struct wpa_supplicant *wpa_s,
 408                                          struct wpa_bss *bss)
 409 {
 410         DBusMessage *reply;
 411         DBusMessageIter iter, iter_dict;
 412         const u8 *ie;
 413
 414         /* Dump the properties into a dbus message */
 415         reply = dbus_message_new_method_return(message);
 416
 417         dbus_message_iter_init_append(reply, &iter);
 418         if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
 419                 goto error;
 420
 421         if (!wpa_dbus_dict_append_byte_array(&iter_dict, "bssid",
 422                                              (const char *) bss->bssid,
 423                                              ETH_ALEN))
 424                 goto error;
 425
 426         ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
 427         if (ie) {
 428                 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "ssid",
 429                                                      (const char *) (ie + 2),
 430                                                      ie[1]))
 431                         goto error;
 432         }
 433
 434         ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 435         if (ie) {
 436                 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpaie",
 437                                                      (const char *) ie,
 438                                                      ie[1] + 2))
 439                         goto error;
 440         }
 441
 442         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 443         if (ie) {
 444                 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "rsnie",
 445                                                      (const char *) ie,
 446                                                      ie[1] + 2))
 447                         goto error;
 448         }
 449
 450         ie = wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE);
 451         if (ie) {
 452                 if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpsie",
 453                                                      (const char *) ie,
 454                                                      ie[1] + 2))
 455                         goto error;
 456         }
 457
 458         if (bss->freq) {
 459                 if (!wpa_dbus_dict_append_int32(&iter_dict, "frequency",
 460                                                 bss->freq))
 461                         goto error;
 462         }
 463         if (!wpa_dbus_dict_append_uint16(&iter_dict, "capabilities",
 464                                          bss->caps))
 465                 goto error;
 466         if (!(bss->flags & WPA_BSS_QUAL_INVALID) &&
 467             !wpa_dbus_dict_append_int32(&iter_dict, "quality", bss->qual))
 468                 goto error;
 469         if (!(bss->flags & WPA_BSS_NOISE_INVALID) &&
 470             !wpa_dbus_dict_append_int32(&iter_dict, "noise", bss->noise))
 471                 goto error;
 472         if (!(bss->flags & WPA_BSS_LEVEL_INVALID) &&
 473             !wpa_dbus_dict_append_int32(&iter_dict, "level", bss->level))
 474                 goto error;
 475         if (!wpa_dbus_dict_append_int32(&iter_dict, "maxrate",
 476                                         wpa_bss_get_max_rate(bss) * 500000))
 477                 goto error;
 478
 479         if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
 480                 goto error;
 481
 482         return reply;
 483
 484 error:
 485         if (reply)
 486                 dbus_message_unref(reply);
 487         return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
 488                                       "an internal error occurred returning "
 489                                       "BSSID properties.");
 490 }
 491
 492
 493 /**
 494  * wpas_dbus_iface_capabilities - Return interface capabilities
 495  * @message: Pointer to incoming dbus message
 496  * @wpa_s: wpa_supplicant structure for a network interface
 497  * Returns: A dbus message containing a dict of strings
 498  *
 499  * Handler function for "capabilities" method call of an interface.
 500  */
 501 DBusMessage * wpas_dbus_iface_capabilities(DBusMessage *message,
 502                                            struct wpa_supplicant *wpa_s)
 503 {
 504         DBusMessage *reply = NULL;
 505         struct wpa_driver_capa capa;
 506         int res;
 507         DBusMessageIter iter, iter_dict;
 508         char **eap_methods;
 509         size_t num_items;
 510         dbus_bool_t strict = FALSE;
 511         DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
 512
 513         if (!dbus_message_get_args(message, NULL,
 514                                    DBUS_TYPE_BOOLEAN, &strict,
 515                                    DBUS_TYPE_INVALID))
 516                 strict = FALSE;
 517
 518         reply = dbus_message_new_method_return(message);
 519
 520         dbus_message_iter_init_append(reply, &iter);
 521         if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
 522                 goto error;
 523
 524         /* EAP methods */
 525         eap_methods = eap_get_names_as_string_array(&num_items);
 526         if (eap_methods) {
 527                 dbus_bool_t success = FALSE;
 528                 size_t i = 0;
 529
 530                 success = wpa_dbus_dict_append_string_array(
 531                         &iter_dict, "eap", (const char **) eap_methods,
 532                         num_items);
 533
 534                 /* free returned method array */
 535                 while (eap_methods[i])
 536                         os_free(eap_methods[i++]);
 537                 os_free(eap_methods);
 538
 539                 if (!success)
 540                         goto error;
 541         }
 542
 543         res = wpa_drv_get_capa(wpa_s, &capa);
 544
 545         /***** pairwise cipher */
 546         if (res < 0) {
 547                 if (!strict) {
 548                         const char *args[] = {"CCMP", "TKIP", "NONE"};
 549                         if (!wpa_dbus_dict_append_string_array(
 550                                     &iter_dict, "pairwise", args,
 551                                     ARRAY_SIZE(args)))
 552                                 goto error;
 553                 }
 554         } else {
 555                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "pairwise",
 556                                                       &iter_dict_entry,
 557                                                       &iter_dict_val,
 558                                                       &iter_array))
 559                         goto error;
 560
 561                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
 562                         if (!wpa_dbus_dict_string_array_add_element(
 563                                     &iter_array, "CCMP"))
 564                                 goto error;
 565                 }
 566
 567                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
 568                         if (!wpa_dbus_dict_string_array_add_element(
 569                                     &iter_array, "TKIP"))
 570                                 goto error;
 571                 }
 572
 573                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
 574                         if (!wpa_dbus_dict_string_array_add_element(
 575                                     &iter_array, "NONE"))
 576                                 goto error;
 577                 }
 578
 579                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
 580                                                     &iter_dict_entry,
 581                                                     &iter_dict_val,
 582                                                     &iter_array))
 583                         goto error;
 584         }
 585
 586         /***** group cipher */
 587         if (res < 0) {
 588                 if (!strict) {
 589                         const char *args[] = {
 590                                 "CCMP", "TKIP", "WEP104", "WEP40"
 591                         };
 592                         if (!wpa_dbus_dict_append_string_array(
 593                                     &iter_dict, "group", args,
 594                                     ARRAY_SIZE(args)))
 595                                 goto error;
 596                 }
 597         } else {
 598                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "group",
 599                                                       &iter_dict_entry,
 600                                                       &iter_dict_val,
 601                                                       &iter_array))
 602                         goto error;
 603
 604                 if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
 605                         if (!wpa_dbus_dict_string_array_add_element(
 606                                     &iter_array, "CCMP"))
 607                                 goto error;
 608                 }
 609
 610                 if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
 611                         if (!wpa_dbus_dict_string_array_add_element(
 612                                     &iter_array, "TKIP"))
 613                                 goto error;
 614                 }
 615
 616                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
 617                         if (!wpa_dbus_dict_string_array_add_element(
 618                                     &iter_array, "WEP104"))
 619                                 goto error;
 620                 }
 621
 622                 if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
 623                         if (!wpa_dbus_dict_string_array_add_element(
 624                                     &iter_array, "WEP40"))
 625                                 goto error;
 626                 }
 627
 628                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
 629                                                     &iter_dict_entry,
 630                                                     &iter_dict_val,
 631                                                     &iter_array))
 632                         goto error;
 633         }
 634
 635         /***** key management */
 636         if (res < 0) {
 637                 if (!strict) {
 638                         const char *args[] = {
 639                                 "WPA-PSK", "WPA-EAP", "IEEE8021X", "WPA-NONE",
 640                                 "NONE"
 641                         };
 642                         if (!wpa_dbus_dict_append_string_array(
 643                                     &iter_dict, "key_mgmt", args,
 644                                     ARRAY_SIZE(args)))
 645                                 goto error;
 646                 }
 647         } else {
 648                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "key_mgmt",
 649                                                       &iter_dict_entry,
 650                                                       &iter_dict_val,
 651                                                       &iter_array))
 652                         goto error;
 653
 654                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
 655                                                             "NONE"))
 656                         goto error;
 657
 658                 if (!wpa_dbus_dict_string_array_add_element(&iter_array,
 659                                                             "IEEE8021X"))
 660                         goto error;
 661
 662                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
 663                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
 664                         if (!wpa_dbus_dict_string_array_add_element(
 665                                     &iter_array, "WPA-EAP"))
 666                                 goto error;
 667                 }
 668
 669                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
 670                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 671                         if (!wpa_dbus_dict_string_array_add_element(
 672                                     &iter_array, "WPA-PSK"))
 673                                 goto error;
 674                 }
 675
 676                 if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
 677                         if (!wpa_dbus_dict_string_array_add_element(
 678                                     &iter_array, "WPA-NONE"))
 679                                 goto error;
 680                 }
 681
 682                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
 683                                                     &iter_dict_entry,
 684                                                     &iter_dict_val,
 685                                                     &iter_array))
 686                         goto error;
 687         }
 688
 689         /***** WPA protocol */
 690         if (res < 0) {
 691                 if (!strict) {
 692                         const char *args[] = { "RSN", "WPA" };
 693                         if (!wpa_dbus_dict_append_string_array(
 694                                     &iter_dict, "proto", args,
 695                                     ARRAY_SIZE(args)))
 696                                 goto error;
 697                 }
 698         } else {
 699                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "proto",
 700                                                       &iter_dict_entry,
 701                                                       &iter_dict_val,
 702                                                       &iter_array))
 703                         goto error;
 704
 705                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
 706                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
 707                         if (!wpa_dbus_dict_string_array_add_element(
 708                                     &iter_array, "RSN"))
 709                                 goto error;
 710                 }
 711
 712                 if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
 713                                      WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
 714                         if (!wpa_dbus_dict_string_array_add_element(
 715                                     &iter_array, "WPA"))
 716                                 goto error;
 717                 }
 718
 719                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
 720                                                     &iter_dict_entry,
 721                                                     &iter_dict_val,
 722                                                     &iter_array))
 723                         goto error;
 724         }
 725
 726         /***** auth alg */
 727         if (res < 0) {
 728                 if (!strict) {
 729                         const char *args[] = { "OPEN", "SHARED", "LEAP" };
 730                         if (!wpa_dbus_dict_append_string_array(
 731                                     &iter_dict, "auth_alg", args,
 732                                     ARRAY_SIZE(args)))
 733                                 goto error;
 734                 }
 735         } else {
 736                 if (!wpa_dbus_dict_begin_string_array(&iter_dict, "auth_alg",
 737                                                       &iter_dict_entry,
 738                                                       &iter_dict_val,
 739                                                       &iter_array))
 740                         goto error;
 741
 742                 if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
 743                         if (!wpa_dbus_dict_string_array_add_element(
 744                                     &iter_array, "OPEN"))
 745                                 goto error;
 746                 }
 747
 748                 if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
 749                         if (!wpa_dbus_dict_string_array_add_element(
 750                                     &iter_array, "SHARED"))
 751                                 goto error;
 752                 }
 753
 754                 if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
 755                         if (!wpa_dbus_dict_string_array_add_element(
 756                                     &iter_array, "LEAP"))
 757                                 goto error;
 758                 }
 759
 760                 if (!wpa_dbus_dict_end_string_array(&iter_dict,
 761                                                     &iter_dict_entry,
 762                                                     &iter_dict_val,
 763                                                     &iter_array))
 764                         goto error;
 765         }
 766
 767         if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
 768                 goto error;
 769
 770         return reply;
 771
 772 error:
 773         if (reply)
 774                 dbus_message_unref(reply);
 775         return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
 776                                       "an internal error occurred returning "
 777                                       "interface capabilities.");
 778 }
 779
 780
 781 /**
 782  * wpas_dbus_iface_add_network - Add a new configured network
 783  * @message: Pointer to incoming dbus message
 784  * @wpa_s: wpa_supplicant structure for a network interface
 785  * Returns: A dbus message containing the object path of the new network
 786  *
 787  * Handler function for "addNetwork" method call of a network interface.
 788  */
 789 DBusMessage * wpas_dbus_iface_add_network(DBusMessage *message,
 790                                           struct wpa_supplicant *wpa_s)
 791 {
 792         DBusMessage *reply = NULL;
 793         struct wpa_ssid *ssid;
 794         char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
 795
 796         ssid = wpa_config_add_network(wpa_s->conf);
 797         if (ssid == NULL) {
 798                 reply = dbus_message_new_error(message,
 799                                                WPAS_ERROR_ADD_NETWORK_ERROR,
 800                                                "wpa_supplicant could not add "
 801                                                "a network on this interface.");
 802                 goto out;
 803         }
 804         wpas_notify_network_added(wpa_s, ssid);
 805         ssid->disabled = 1;
 806         wpa_config_set_network_defaults(ssid);
 807
 808         /* Construct the object path for this network. */
 809         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
 810                     "%s/" WPAS_DBUS_NETWORKS_PART "/%d",
 811                     wpa_s->dbus_path, ssid->id);
 812
 813         reply = dbus_message_new_method_return(message);
 814         dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
 815                                  &path, DBUS_TYPE_INVALID);
 816
 817 out:
 818         return reply;
 819 }
 820
 821
 822 /**
 823  * wpas_dbus_iface_remove_network - Remove a configured network
 824  * @message: Pointer to incoming dbus message
 825  * @wpa_s: wpa_supplicant structure for a network interface
 826  * Returns: A dbus message containing a UINT32 indicating success (1) or
 827  *          failure (0)
 828  *
 829  * Handler function for "removeNetwork" method call of a network interface.
 830  */
 831 DBusMessage * wpas_dbus_iface_remove_network(DBusMessage *message,
 832                                              struct wpa_supplicant *wpa_s)
 833 {
 834         DBusMessage *reply = NULL;
 835         const char *op;
 836         char *iface = NULL, *net_id = NULL;
 837         int id;
 838         struct wpa_ssid *ssid;
 839
 840         if (!dbus_message_get_args(message, NULL,
 841                                    DBUS_TYPE_OBJECT_PATH, &op,
 842                                    DBUS_TYPE_INVALID)) {
 843                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
 844                 goto out;
 845         }
 846
 847         /* Extract the network ID */
 848         iface = wpas_dbus_decompose_object_path(op, &net_id, NULL);
 849         if (iface == NULL || net_id == NULL) {
 850                 reply = wpas_dbus_new_invalid_network_error(message);
 851                 goto out;
 852         }
 853
 854         /* Ensure the network is actually a child of this interface */
 855         if (os_strcmp(iface, wpa_s->dbus_path) != 0) {
 856                 reply = wpas_dbus_new_invalid_network_error(message);
 857                 goto out;
 858         }
 859
 860         id = strtoul(net_id, NULL, 10);
 861         ssid = wpa_config_get_network(wpa_s->conf, id);
 862         if (ssid == NULL) {
 863                 reply = wpas_dbus_new_invalid_network_error(message);
 864                 goto out;
 865         }
 866
 867         wpas_notify_network_removed(wpa_s, ssid);
 868
 869         if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
 870                 reply = dbus_message_new_error(message,
 871                                                WPAS_ERROR_REMOVE_NETWORK_ERROR,
 872                                                "error removing the specified "
 873                                                "on this interface.");
 874                 goto out;
 875         }
 876
 877         if (ssid == wpa_s->current_ssid)
 878                 wpa_supplicant_deauthenticate(wpa_s,
 879                                               WLAN_REASON_DEAUTH_LEAVING);
 880         reply = wpas_dbus_new_success_reply(message);
 881
 882 out:
 883         os_free(iface);
 884         os_free(net_id);
 885         return reply;
 886 }
 887
 888
 889 static const char *dont_quote[] = {
 890         "key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
 891         "opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
 892         "bssid", NULL
 893 };
 894
 895
 896 static dbus_bool_t should_quote_opt(const char *key)
 897 {
 898         int i = 0;
 899         while (dont_quote[i] != NULL) {
 900                 if (strcmp(key, dont_quote[i]) == 0)
 901                         return FALSE;
 902                 i++;
 903         }
 904         return TRUE;
 905 }
 906
 907
 908 /**
 909  * wpas_dbus_iface_set_network - Set options for a configured network
 910  * @message: Pointer to incoming dbus message
 911  * @wpa_s: wpa_supplicant structure for a network interface
 912  * @ssid: wpa_ssid structure for a configured network
 913  * Returns: a dbus message containing a UINT32 indicating success (1) or
 914  *          failure (0)
 915  *
 916  * Handler function for "set" method call of a configured network.
 917  */
 918 DBusMessage * wpas_dbus_iface_set_network(DBusMessage *message,
 919                                           struct wpa_supplicant *wpa_s,
 920                                           struct wpa_ssid *ssid)
 921 {
 922         DBusMessage *reply = NULL;
 923         struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
 924         DBusMessageIter iter, iter_dict;
 925
 926         dbus_message_iter_init(message, &iter);
 927
 928         if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL)) {
 929                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
 930                 goto out;
 931         }
 932
 933         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
 934                 char *value = NULL;
 935                 size_t size = 50;
 936                 int ret;
 937
 938                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
 939                         reply = wpas_dbus_new_invalid_opts_error(message,
 940                                                                  NULL);
 941                         goto out;
 942                 }
 943
 944                 /* Type conversions, since wpa_supplicant wants strings */
 945                 if (entry.type == DBUS_TYPE_ARRAY &&
 946                     entry.array_type == DBUS_TYPE_BYTE) {
 947                         if (entry.array_len <= 0)
 948                                 goto error;
 949
 950                         size = entry.array_len * 2 + 1;
 951                         value = os_zalloc(size);
 952                         if (value == NULL)
 953                                 goto error;
 954                         ret = wpa_snprintf_hex(value, size,
 955                                                (u8 *) entry.bytearray_value,
 956                                                entry.array_len);
 957                         if (ret <= 0)
 958                                 goto error;
 959                 } else if (entry.type == DBUS_TYPE_STRING) {
 960                         if (should_quote_opt(entry.key)) {
 961                                 size = os_strlen(entry.str_value);
 962                                 /* Zero-length option check */
 963                                 if (size <= 0)
 964                                         goto error;
 965                                 size += 3;  /* For quotes and terminator */
 966                                 value = os_zalloc(size);
 967                                 if (value == NULL)
 968                                         goto error;
 969                                 ret = os_snprintf(value, size, "\"%s\"",
 970                                                   entry.str_value);
 971                                 if (os_snprintf_error(size, ret))
 972                                         goto error;
 973                         } else {
 974                                 value = os_strdup(entry.str_value);
 975                                 if (value == NULL)
 976                                         goto error;
 977                         }
 978                 } else if (entry.type == DBUS_TYPE_UINT32) {
 979                         value = os_zalloc(size);
 980                         if (value == NULL)
 981                                 goto error;
 982                         ret = os_snprintf(value, size, "%u",
 983                                           entry.uint32_value);
 984                         if (os_snprintf_error(size, ret))
 985                                 goto error;
 986                 } else if (entry.type == DBUS_TYPE_INT32) {
 987                         value = os_zalloc(size);
 988                         if (value == NULL)
 989                                 goto error;
 990                         ret = os_snprintf(value, size, "%d",
 991                                           entry.int32_value);
 992                         if (os_snprintf_error(size, ret))
 993                                 goto error;
 994                 } else
 995                         goto error;
 996
 997                 if (wpa_config_set(ssid, entry.key, value, 0) < 0)
 998                         goto error;
 999
1000                 if ((os_strcmp(entry.key, "psk") == 0 &&
1001                      value[0] == '"' && ssid->ssid_len) ||
1002                     (os_strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
1003                         wpa_config_update_psk(ssid);
1004                 else if (os_strcmp(entry.key, "priority") == 0)
1005                         wpa_config_update_prio_list(wpa_s->conf);
1006
1007                 os_free(value);
1008                 wpa_dbus_dict_entry_clear(&entry);
1009                 continue;
1010
1011         error:
1012                 os_free(value);
1013                 reply = wpas_dbus_new_invalid_opts_error(message, entry.key);
1014                 wpa_dbus_dict_entry_clear(&entry);
1015                 break;
1016         }
1017
1018         if (!reply)
1019                 reply = wpas_dbus_new_success_reply(message);
1020
1021 out:
1022         return reply;
1023 }
1024
1025
1026 /**
1027  * wpas_dbus_iface_enable_network - Mark a configured network as enabled
1028  * @message: Pointer to incoming dbus message
1029  * @wpa_s: wpa_supplicant structure for a network interface
1030  * @ssid: wpa_ssid structure for a configured network
1031  * Returns: A dbus message containing a UINT32 indicating success (1) or
1032  *          failure (0)
1033  *
1034  * Handler function for "enable" method call of a configured network.
1035  */
1036 DBusMessage * wpas_dbus_iface_enable_network(DBusMessage *message,
1037                                              struct wpa_supplicant *wpa_s,
1038                                              struct wpa_ssid *ssid)
1039 {
1040         wpa_supplicant_enable_network(wpa_s, ssid);
1041         return wpas_dbus_new_success_reply(message);
1042 }
1043
1044
1045 /**
1046  * wpas_dbus_iface_disable_network - Mark a configured network as disabled
1047  * @message: Pointer to incoming dbus message
1048  * @wpa_s: wpa_supplicant structure for a network interface
1049  * @ssid: wpa_ssid structure for a configured network
1050  * Returns: A dbus message containing a UINT32 indicating success (1) or
1051  *          failure (0)
1052  *
1053  * Handler function for "disable" method call of a configured network.
1054  */
1055 DBusMessage * wpas_dbus_iface_disable_network(DBusMessage *message,
1056                                               struct wpa_supplicant *wpa_s,
1057                                               struct wpa_ssid *ssid)
1058 {
1059         wpa_supplicant_disable_network(wpa_s, ssid);
1060         return wpas_dbus_new_success_reply(message);
1061 }
1062
1063
1064 /**
1065  * wpas_dbus_iface_select_network - Attempt association with a configured network
1066  * @message: Pointer to incoming dbus message
1067  * @wpa_s: wpa_supplicant structure for a network interface
1068  * Returns: A dbus message containing a UINT32 indicating success (1) or
1069  *          failure (0)
1070  *
1071  * Handler function for "selectNetwork" method call of network interface.
1072  */
1073 DBusMessage * wpas_dbus_iface_select_network(DBusMessage *message,
1074                                              struct wpa_supplicant *wpa_s)
1075 {
1076         DBusMessage *reply = NULL;
1077         const char *op;
1078         struct wpa_ssid *ssid;
1079         char *iface_obj_path = NULL;
1080         char *network = NULL;
1081
1082         if (os_strlen(dbus_message_get_signature(message)) == 0) {
1083                 /* Any network */
1084                 ssid = NULL;
1085         } else {
1086                 int nid;
1087
1088                 if (!dbus_message_get_args(message, NULL,
1089                                            DBUS_TYPE_OBJECT_PATH, &op,
1090                                            DBUS_TYPE_INVALID)) {
1091                         reply = wpas_dbus_new_invalid_opts_error(message,
1092                                                                  NULL);
1093                         goto out;
1094                 }
1095
1096                 /* Extract the network number */
1097                 iface_obj_path = wpas_dbus_decompose_object_path(op,
1098                                                                  &network,
1099                                                                  NULL);
1100                 if (iface_obj_path == NULL) {
1101                         reply = wpas_dbus_new_invalid_iface_error(message);
1102                         goto out;
1103                 }
1104                 /* Ensure the object path really points to this interface */
1105                 if (network == NULL ||
1106                     os_strcmp(iface_obj_path, wpa_s->dbus_path) != 0) {
1107                         reply = wpas_dbus_new_invalid_network_error(message);
1108                         goto out;
1109                 }
1110
1111                 nid = strtoul(network, NULL, 10);
1112                 if (errno == EINVAL) {
1113                         reply = wpas_dbus_new_invalid_network_error(message);
1114                         goto out;
1115                 }
1116
1117                 ssid = wpa_config_get_network(wpa_s->conf, nid);
1118                 if (ssid == NULL) {
1119                         reply = wpas_dbus_new_invalid_network_error(message);
1120                         goto out;
1121                 }
1122         }
1123
1124         /* Finally, associate with the network */
1125         wpa_supplicant_select_network(wpa_s, ssid);
1126
1127         reply = wpas_dbus_new_success_reply(message);
1128
1129 out:
1130         os_free(iface_obj_path);
1131         os_free(network);
1132         return reply;
1133 }
1134
1135
1136 /**
1137  * wpas_dbus_iface_disconnect - Terminate the current connection
1138  * @message: Pointer to incoming dbus message
1139  * @wpa_s: wpa_supplicant structure for a network interface
1140  * Returns: A dbus message containing a UINT32 indicating success (1) or
1141  *          failure (0)
1142  *
1143  * Handler function for "disconnect" method call of network interface.
1144  */
1145 DBusMessage * wpas_dbus_iface_disconnect(DBusMessage *message,
1146                                          struct wpa_supplicant *wpa_s)
1147 {
1148         wpa_s->disconnected = 1;
1149         wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1150
1151         return wpas_dbus_new_success_reply(message);
1152 }
1153
1154
1155 /**
1156  * wpas_dbus_iface_set_ap_scan - Control roaming mode
1157  * @message: Pointer to incoming dbus message
1158  * @wpa_s: wpa_supplicant structure for a network interface
1159  * Returns: A dbus message containing a UINT32 indicating success (1) or
1160  *          failure (0)
1161  *
1162  * Handler function for "setAPScan" method call.
1163  */
1164 DBusMessage * wpas_dbus_iface_set_ap_scan(DBusMessage *message,
1165                                           struct wpa_supplicant *wpa_s)
1166 {
1167         DBusMessage *reply = NULL;
1168         dbus_uint32_t ap_scan = 1;
1169
1170         if (!dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &ap_scan,
1171                                    DBUS_TYPE_INVALID)) {
1172                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
1173                 goto out;
1174         }
1175
1176         if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
1177                 reply = wpas_dbus_new_invalid_opts_error(message, NULL);
1178                 goto out;
1179         }
1180
1181         reply = wpas_dbus_new_success_reply(message);
1182
1183 out:
1184         return reply;
1185 }
1186
1187
1188 /**
1189  * wpas_dbus_iface_set_smartcard_modules - Set smartcard related module paths
1190  * @message: Pointer to incoming dbus message
1191  * @wpa_s: wpa_supplicant structure for a network interface
1192  * Returns: A dbus message containing a UINT32 indicating success (1) or
1193  *          failure (0)
1194  *
1195  * Handler function for "setSmartcardModules" method call.
1196  */
1197 DBusMessage * wpas_dbus_iface_set_smartcard_modules(
1198         DBusMessage *message, struct wpa_supplicant *wpa_s)
1199 {
1200         DBusMessageIter iter, iter_dict;
1201         char *opensc_engine_path = NULL;
1202         char *pkcs11_engine_path = NULL;
1203         char *pkcs11_module_path = NULL;
1204         struct wpa_dbus_dict_entry entry;
1205
1206         if (!dbus_message_iter_init(message, &iter))
1207                 goto error;
1208
1209         if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
1210                 goto error;
1211
1212         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
1213                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
1214                         goto error;
1215                 if (!strcmp(entry.key, "opensc_engine_path") &&
1216                     (entry.type == DBUS_TYPE_STRING)) {
1217                         os_free(opensc_engine_path);
1218                         opensc_engine_path = os_strdup(entry.str_value);
1219                         if (opensc_engine_path == NULL)
1220                                 goto error;
1221                 } else if (!strcmp(entry.key, "pkcs11_engine_path") &&
1222                            (entry.type == DBUS_TYPE_STRING)) {
1223                         os_free(pkcs11_engine_path);
1224                         pkcs11_engine_path = os_strdup(entry.str_value);
1225                         if (pkcs11_engine_path == NULL)
1226                                 goto error;
1227                 } else if (!strcmp(entry.key, "pkcs11_module_path") &&
1228                                  (entry.type == DBUS_TYPE_STRING)) {
1229                         os_free(pkcs11_module_path);
1230                         pkcs11_module_path = os_strdup(entry.str_value);
1231                         if (pkcs11_module_path == NULL)
1232                                 goto error;
1233                 } else {
1234                         wpa_dbus_dict_entry_clear(&entry);
1235                         goto error;
1236                 }
1237                 wpa_dbus_dict_entry_clear(&entry);
1238         }
1239
1240         os_free(wpa_s->conf->opensc_engine_path);
1241         wpa_s->conf->opensc_engine_path = opensc_engine_path;
1242         os_free(wpa_s->conf->pkcs11_engine_path);
1243         wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path;
1244         os_free(wpa_s->conf->pkcs11_module_path);
1245         wpa_s->conf->pkcs11_module_path = pkcs11_module_path;
1246
1247         wpa_sm_set_eapol(wpa_s->wpa, NULL);
1248         eapol_sm_deinit(wpa_s->eapol);
1249         wpa_s->eapol = NULL;
1250         wpa_supplicant_init_eapol(wpa_s);
1251         wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
1252
1253         return wpas_dbus_new_success_reply(message);
1254
1255 error:
1256         os_free(opensc_engine_path);
1257         os_free(pkcs11_engine_path);
1258         os_free(pkcs11_module_path);
1259         return wpas_dbus_new_invalid_opts_error(message, NULL);
1260 }
1261
1262
1263 /**
1264  * wpas_dbus_iface_get_state - Get interface state
1265  * @message: Pointer to incoming dbus message
1266  * @wpa_s: wpa_supplicant structure for a network interface
1267  * Returns: A dbus message containing a STRING representing the current
1268  *          interface state
1269  *
1270  * Handler function for "state" method call.
1271  */
1272 DBusMessage * wpas_dbus_iface_get_state(DBusMessage *message,
1273                                         struct wpa_supplicant *wpa_s)
1274 {
1275         DBusMessage *reply = NULL;
1276         const char *str_state;
1277
1278         reply = dbus_message_new_method_return(message);
1279         if (reply != NULL) {
1280                 str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
1281                 dbus_message_append_args(reply, DBUS_TYPE_STRING, &str_state,
1282                                          DBUS_TYPE_INVALID);
1283         }
1284
1285         return reply;
1286 }
1287
1288
1289 /**
1290  * wpas_dbus_iface_get_scanning - Get interface scanning state
1291  * @message: Pointer to incoming dbus message
1292  * @wpa_s: wpa_supplicant structure for a network interface
1293  * Returns: A dbus message containing whether the interface is scanning
1294  *
1295  * Handler function for "scanning" method call.
1296  */
1297 DBusMessage * wpas_dbus_iface_get_scanning(DBusMessage *message,
1298                                            struct wpa_supplicant *wpa_s)
1299 {
1300         DBusMessage *reply = NULL;
1301         dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
1302
1303         reply = dbus_message_new_method_return(message);
1304         if (reply != NULL) {
1305                 dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &scanning,
1306                                          DBUS_TYPE_INVALID);
1307         } else {
1308                 wpa_printf(MSG_ERROR, "dbus: Not enough memory to return "
1309                            "scanning state");
1310         }
1311
1312         return reply;
1313 }
1314
1315
1316 #ifndef CONFIG_NO_CONFIG_BLOBS
1317
1318 /**
1319  * wpas_dbus_iface_set_blobs - Store named binary blobs (ie, for certificates)
1320  * @message: Pointer to incoming dbus message
1321  * @wpa_s: %wpa_supplicant data structure
1322  * Returns: A dbus message containing a UINT32 indicating success (1) or
1323  *          failure (0)
1324  *
1325  * Asks wpa_supplicant to internally store a one or more binary blobs.
1326  */
1327 DBusMessage * wpas_dbus_iface_set_blobs(DBusMessage *message,
1328                                         struct wpa_supplicant *wpa_s)
1329 {
1330         DBusMessage *reply = NULL;
1331         struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
1332         DBusMessageIter iter, iter_dict;
1333
1334         dbus_message_iter_init(message, &iter);
1335
1336         if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
1337                 return wpas_dbus_new_invalid_opts_error(message, NULL);
1338
1339         while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
1340                 struct wpa_config_blob *blob;
1341
1342                 if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
1343                         reply = wpas_dbus_new_invalid_opts_error(message,
1344                                                                  NULL);
1345                         break;
1346                 }
1347
1348                 if (entry.type != DBUS_TYPE_ARRAY ||
1349                     entry.array_type != DBUS_TYPE_BYTE) {
1350                         reply = wpas_dbus_new_invalid_opts_error(
1351                                 message, "Byte array expected.");
1352                         break;
1353                 }
1354
1355                 if ((entry.array_len <= 0) || (entry.array_len > 65536) ||
1356                     !strlen(entry.key)) {
1357                         reply = wpas_dbus_new_invalid_opts_error(
1358                                 message, "Invalid array size.");
1359                         break;
1360                 }
1361
1362                 blob = os_zalloc(sizeof(*blob));
1363                 if (blob == NULL) {
1364                         reply = dbus_message_new_error(
1365                                 message, WPAS_ERROR_ADD_ERROR,
1366                                 "Not enough memory to add blob.");
1367                         break;
1368                 }
1369                 blob->data = os_zalloc(entry.array_len);
1370                 if (blob->data == NULL) {
1371                         reply = dbus_message_new_error(
1372                                 message, WPAS_ERROR_ADD_ERROR,
1373                                 "Not enough memory to add blob data.");
1374                         os_free(blob);
1375                         break;
1376                 }
1377
1378                 blob->name = os_strdup(entry.key);
1379                 blob->len = entry.array_len;
1380                 os_memcpy(blob->data, (u8 *) entry.bytearray_value,
1381                                 entry.array_len);
1382                 if (blob->name == NULL) {
1383                         wpa_config_free_blob(blob);
1384                         reply = dbus_message_new_error(
1385                                 message, WPAS_ERROR_ADD_ERROR,
1386                                 "Error adding blob.");
1387                         break;
1388                 }
1389
1390                 /* Success */
1391                 if (!wpa_config_remove_blob(wpa_s->conf, blob->name))
1392                         wpas_notify_blob_removed(wpa_s, blob->name);
1393                 wpa_config_set_blob(wpa_s->conf, blob);
1394                 wpas_notify_blob_added(wpa_s, blob->name);
1395
1396                 wpa_dbus_dict_entry_clear(&entry);
1397         }
1398         wpa_dbus_dict_entry_clear(&entry);
1399
1400         return reply ? reply : wpas_dbus_new_success_reply(message);
1401 }
1402
1403
1404 /**
1405  * wpas_dbus_iface_remove_blob - Remove named binary blobs
1406  * @message: Pointer to incoming dbus message
1407  * @wpa_s: %wpa_supplicant data structure
1408  * Returns: A dbus message containing a UINT32 indicating success (1) or
1409  *          failure (0)
1410  *
1411  * Asks wpa_supplicant to remove one or more previously stored binary blobs.
1412  */
1413 DBusMessage * wpas_dbus_iface_remove_blobs(DBusMessage *message,
1414                                            struct wpa_supplicant *wpa_s)
1415 {
1416         DBusMessageIter iter, array;
1417         char *err_msg = NULL;
1418
1419         dbus_message_iter_init(message, &iter);
1420
1421         if ((dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY) ||
1422             (dbus_message_iter_get_element_type (&iter) != DBUS_TYPE_STRING))
1423                 return wpas_dbus_new_invalid_opts_error(message, NULL);
1424
1425         dbus_message_iter_recurse(&iter, &array);
1426         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_STRING) {
1427                 const char *name;
1428
1429                 dbus_message_iter_get_basic(&array, &name);
1430                 if (!os_strlen(name))
1431                         err_msg = "Invalid blob name.";
1432                 else if (wpa_config_remove_blob(wpa_s->conf, name) != 0)
1433                         err_msg = "Error removing blob.";
1434                 else
1435                         wpas_notify_blob_removed(wpa_s, name);
1436                 dbus_message_iter_next(&array);
1437         }
1438
1439         if (err_msg)
1440                 return dbus_message_new_error(message, WPAS_ERROR_REMOVE_ERROR,
1441                                               err_msg);
1442
1443         return wpas_dbus_new_success_reply(message);
1444 }
1445
1446 #endif /* CONFIG_NO_CONFIG_BLOBS */
1447
1448
1449 /**
1450  * wpas_dbus_iface_flush - Clear BSS of old or all inactive entries
1451  * @message: Pointer to incoming dbus message
1452  * @wpa_s: %wpa_supplicant data structure
1453  * Returns: a dbus message containing a UINT32 indicating success (1) or
1454  *          failure (0), or returns a dbus error message with more information
1455  *
1456  * Handler function for "flush" method call. Handles requests for an
1457  * interface with an optional "age" parameter that specifies the minimum
1458  * age of a BSS to be flushed.
1459  */
1460 DBusMessage * wpas_dbus_iface_flush(DBusMessage *message,
1461                                     struct wpa_supplicant *wpa_s)
1462 {
1463         int flush_age = 0;
1464
1465         if (os_strlen(dbus_message_get_signature(message)) != 0 &&
1466             !dbus_message_get_args(message, NULL,
1467                                    DBUS_TYPE_INT32, &flush_age,
1468                                    DBUS_TYPE_INVALID)) {
1469                 return wpas_dbus_new_invalid_opts_error(message, NULL);
1470         }
1471
1472         if (flush_age == 0)
1473                 wpa_bss_flush(wpa_s);
1474         else
1475                 wpa_bss_flush_by_age(wpa_s, flush_age);
1476
1477         return wpas_dbus_new_success_reply(message);
1478 }