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