wpa_supplicant/dbus/dbus_new.c

   1 /*
   2  * WPA Supplicant / dbus-based control interface
   3  * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
   4  * Copyright (c) 2009, Witold Sowa <witold.sowa@gmail.com>
   5  * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * Alternatively, this software may be distributed under the terms of BSD
  12  * license.
  13  *
  14  * See README and COPYING for more details.
  15  */
  16
  17 #include "includes.h"
  18
  19 #include "common.h"
  20 #include "wps/wps.h"
  21 #include "../config.h"
  22 #include "../wpa_supplicant_i.h"
  23 #include "../bss.h"
  24 #include "dbus_new_helpers.h"
  25 #include "dbus_dict_helpers.h"
  26 #include "dbus_new.h"
  27 #include "dbus_new_handlers.h"
  28 #include "dbus_common.h"
  29 #include "dbus_common_i.h"
  30
  31 /**
  32  * wpas_dbus_set_path - Assign a dbus path to an interface
  33  * @wpa_s: wpa_supplicant interface structure
  34  * @path: dbus path to set on the interface
  35  * Returns: 0 on success, -1 on error
  36  */
  37 static int wpas_dbus_set_path(struct wpa_supplicant *wpa_s,
  38                               const char *path)
  39 {
  40         u32 len = os_strlen(path);
  41         if (len >= WPAS_DBUS_OBJECT_PATH_MAX)
  42                 return -1;
  43         if (wpa_s->dbus_new_path)
  44                 return -1;
  45         wpa_s->dbus_new_path = os_strdup(path);
  46         return 0;
  47 }
  48
  49
  50 /**
  51  * wpas_dbus_signal_interface - Send a interface related event signal
  52  * @wpa_s: %wpa_supplicant network interface data
  53  * @sig_name: signal name - InterfaceAdded or InterfaceRemoved
  54  *
  55  * Notify listeners about event related with interface
  56  */
  57 static void wpas_dbus_signal_interface(struct wpa_supplicant *wpa_s,
  58                                        const char *sig_name)
  59 {
  60         struct wpas_dbus_priv *iface;
  61         DBusMessage *_signal;
  62         const char *path;
  63
  64         iface = wpa_s->global->dbus;
  65
  66         /* Do nothing if the control interface is not turned on */
  67         if (iface == NULL)
  68                 return;
  69
  70         path = wpas_dbus_get_path(wpa_s);
  71         if (path == NULL) {
  72                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_interface[dbus]: "
  73                            "Interface doesn't have a dbus path. "
  74                            "Can't send signal.");
  75                 return;
  76         }
  77         _signal = dbus_message_new_signal(WPAS_DBUS_NEW_PATH,
  78                                           WPAS_DBUS_NEW_INTERFACE, sig_name);
  79         if (_signal == NULL) {
  80                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_interface[dbus]: "
  81                            "enough memory to send scan results signal.");
  82                 return;
  83         }
  84
  85         if (dbus_message_append_args(_signal, DBUS_TYPE_OBJECT_PATH, &path,
  86                                      DBUS_TYPE_INVALID)) {
  87                 dbus_connection_send(iface->con, _signal, NULL);
  88         } else {
  89                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_interface[dbus]: "
  90                            "not enough memory to construct signal.");
  91         }
  92         dbus_message_unref(_signal);
  93 }
  94
  95
  96 /**
  97  * wpas_dbus_signal_interface_created - Send a interface created signal
  98  * @wpa_s: %wpa_supplicant network interface data
  99  *
 100  * Notify listeners about creating new interface
 101  */
 102 static void wpas_dbus_signal_interface_created(struct wpa_supplicant *wpa_s)
 103 {
 104         wpas_dbus_signal_interface(wpa_s, "InterfaceCreated");
 105 }
 106
 107
 108 /**
 109  * wpas_dbus_signal_interface_removed - Send a interface removed signal
 110  * @wpa_s: %wpa_supplicant network interface data
 111  *
 112  * Notify listeners about removing interface
 113  */
 114 static void wpas_dbus_signal_interface_removed(struct wpa_supplicant *wpa_s)
 115 {
 116         wpas_dbus_signal_interface(wpa_s, "InterfaceRemoved");
 117
 118 }
 119
 120
 121 /**
 122  * wpas_dbus_signal_scan_done - send scan done signal
 123  * @wpa_s: %wpa_supplicant network interface data
 124  * @success: indicates if scanning succeed or failed
 125  *
 126  * Notify listeners about finishing a scan
 127  */
 128 static void wpas_dbus_signal_scan_done(struct wpa_supplicant *wpa_s,
 129                                        int success)
 130 {
 131         struct wpas_dbus_priv *iface;
 132         DBusMessage *_signal;
 133         const char *path;
 134         dbus_bool_t succ;
 135
 136         iface = wpa_s->global->dbus;
 137
 138         /* Do nothing if the control interface is not turned on */
 139         if (iface == NULL)
 140                 return;
 141
 142         path = wpas_dbus_get_path(wpa_s);
 143         if (path == NULL) {
 144                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_scan_done[dbus]: "
 145                            "Interface doesn't have a dbus path. "
 146                            "Can't send signal.");
 147                 return;
 148         }
 149         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_INTERFACE,
 150                                           "ScanDone");
 151         if (_signal == NULL) {
 152                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_scan_done[dbus]: "
 153                            "enough memory to send signal.");
 154                 return;
 155         }
 156
 157         succ = success ? TRUE : FALSE;
 158         if (dbus_message_append_args(_signal, DBUS_TYPE_BOOLEAN, &succ,
 159                                      DBUS_TYPE_INVALID)) {
 160                 dbus_connection_send(iface->con, _signal, NULL);
 161         } else {
 162                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_scan_done[dbus]: "
 163                            "not enough memory to construct signal.");
 164         }
 165         dbus_message_unref(_signal);
 166 }
 167
 168
 169 /**
 170  * wpas_dbus_signal_blob - Send a BSS related event signal
 171  * @wpa_s: %wpa_supplicant network interface data
 172  * @bss_obj_path: BSS object path
 173  * @sig_name: signal name - BSSAdded or BSSRemoved
 174  *
 175  * Notify listeners about event related with BSS
 176  */
 177 static void wpas_dbus_signal_bss(struct wpa_supplicant *wpa_s,
 178                                  const char *bss_obj_path,
 179                                  const char *sig_name)
 180 {
 181         struct wpas_dbus_priv *iface;
 182         DBusMessage *_signal;
 183         const char *path;
 184
 185         iface = wpa_s->global->dbus;
 186
 187         /* Do nothing if the control interface is not turned on */
 188         if (iface == NULL)
 189                 return;
 190
 191         path = wpas_dbus_get_path(wpa_s);
 192         if (path == NULL) {
 193                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_bss[dbus]: "
 194                            "Interface doesn't have a dbus path. "
 195                            "Can't send signal.");
 196                 return;
 197         }
 198         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_INTERFACE,
 199                                           sig_name);
 200         if (_signal == NULL) {
 201                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_bss[dbus]: "
 202                            "enough memory to send signal.");
 203                 return;
 204         }
 205
 206         if (dbus_message_append_args(_signal, DBUS_TYPE_OBJECT_PATH,
 207                                      &bss_obj_path, DBUS_TYPE_INVALID)) {
 208                 dbus_connection_send(iface->con, _signal, NULL);
 209         } else {
 210                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_bss[dbus]: "
 211                            "not enough memory to construct signal.");
 212         }
 213         dbus_message_unref(_signal);
 214 }
 215
 216
 217 /**
 218  * wpas_dbus_signal_bss_added - Send a BSS added signal
 219  * @wpa_s: %wpa_supplicant network interface data
 220  * @bss_obj_path: new BSS object path
 221  *
 222  * Notify listeners about adding new BSS
 223  */
 224 static void wpas_dbus_signal_bss_added(struct wpa_supplicant *wpa_s,
 225                                        const char *bss_obj_path)
 226 {
 227         wpas_dbus_signal_bss(wpa_s, bss_obj_path, "BSSAdded");
 228 }
 229
 230
 231 /**
 232  * wpas_dbus_signal_bss_removed - Send a BSS removed signal
 233  * @wpa_s: %wpa_supplicant network interface data
 234  * @bss_obj_path: BSS object path
 235  *
 236  * Notify listeners about removing BSS
 237  */
 238 static void wpas_dbus_signal_bss_removed(struct wpa_supplicant *wpa_s,
 239                                          const char *bss_obj_path)
 240 {
 241         wpas_dbus_signal_bss(wpa_s, bss_obj_path, "BSSRemoved");
 242 }
 243
 244
 245 /**
 246  * wpas_dbus_signal_blob - Send a blob related event signal
 247  * @wpa_s: %wpa_supplicant network interface data
 248  * @name: blob name
 249  * @sig_name: signal name - BlobAdded or BlobRemoved
 250  *
 251  * Notify listeners about event related with blob
 252  */
 253 static void wpas_dbus_signal_blob(struct wpa_supplicant *wpa_s,
 254                                   const char *name, const char *sig_name)
 255 {
 256         struct wpas_dbus_priv *iface;
 257         DBusMessage *_signal;
 258         const char *path;
 259
 260         iface = wpa_s->global->dbus;
 261
 262         /* Do nothing if the control interface is not turned on */
 263         if (iface == NULL)
 264                 return;
 265
 266         path = wpas_dbus_get_path(wpa_s);
 267         if (path == NULL) {
 268                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_blob[dbus]: "
 269                            "Interface doesn't have a dbus path. "
 270                            "Can't send signal.");
 271                 return;
 272         }
 273         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_INTERFACE,
 274                                           sig_name);
 275         if (_signal == NULL) {
 276                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_blob[dbus]: "
 277                            "enough memory to send signal.");
 278                 return;
 279         }
 280
 281         if (dbus_message_append_args(_signal, DBUS_TYPE_STRING, &name,
 282                                      DBUS_TYPE_INVALID)) {
 283                 dbus_connection_send(iface->con, _signal, NULL);
 284         } else {
 285                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_blob[dbus]: "
 286                            "not enough memory to construct signal.");
 287         }
 288         dbus_message_unref(_signal);
 289 }
 290
 291
 292 /**
 293  * wpas_dbus_signal_blob_added - Send a blob added signal
 294  * @wpa_s: %wpa_supplicant network interface data
 295  * @name: blob name
 296  *
 297  * Notify listeners about adding a new blob
 298  */
 299 static void wpas_dbus_signal_blob_added(struct wpa_supplicant *wpa_s,
 300                                         const char *name)
 301 {
 302         wpas_dbus_signal_blob(wpa_s, name, "BlobAdded");
 303 }
 304
 305
 306 /**
 307  * wpas_dbus_signal_blob_removed - Send a blob removed signal
 308  * @wpa_s: %wpa_supplicant network interface data
 309  * @name: blob name
 310  *
 311  * Notify listeners about removing blob
 312  */
 313 static void wpas_dbus_signal_blob_removed(struct wpa_supplicant *wpa_s,
 314                                           const char *name)
 315 {
 316         wpas_dbus_signal_blob(wpa_s, name, "BlobRemoved");
 317 }
 318
 319
 320 /**
 321  * wpas_dbus_signal_network - Send a network related event signal
 322  * @wpa_s: %wpa_supplicant network interface data
 323  * @id: new network id
 324  * @sig_name: signal name - NetworkAdded, NetworkRemoved or NetworkSelected
 325  *
 326  * Notify listeners about event related with configured network
 327  */
 328 static void wpas_dbus_signal_network(struct wpa_supplicant *wpa_s,
 329                                      int id, const char *sig_name)
 330 {
 331         struct wpas_dbus_priv *iface;
 332         DBusMessage *_signal;
 333         const char *path;
 334         char *net_obj_path;
 335
 336         iface = wpa_s->global->dbus;
 337
 338         /* Do nothing if the control interface is not turned on */
 339         if (iface == NULL)
 340                 return;
 341
 342         path = wpas_dbus_get_path(wpa_s);
 343         if (path == NULL) {
 344                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_network[dbus]: "
 345                            "Interface doesn't have a dbus path. "
 346                            "Can't send signal.");
 347                 return;
 348         }
 349
 350         net_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
 351         if (net_obj_path == NULL)
 352                 return;
 353         os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
 354                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u", path, id);
 355
 356         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_INTERFACE,
 357                                           sig_name);
 358         if (_signal == NULL) {
 359                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_network[dbus]: "
 360                            "enough memory to send signal.");
 361                 os_free(net_obj_path);
 362                 return;
 363         }
 364
 365         if (dbus_message_append_args(_signal, DBUS_TYPE_OBJECT_PATH,
 366                                      &net_obj_path, DBUS_TYPE_INVALID)) {
 367                 dbus_connection_send(iface->con, _signal, NULL);
 368         } else {
 369                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_network[dbus]: "
 370                            "not enough memory to construct signal.");
 371         }
 372
 373         os_free(net_obj_path);
 374         dbus_message_unref(_signal);
 375 }
 376
 377
 378 /**
 379  * wpas_dbus_signal_network_added - Send a network added signal
 380  * @wpa_s: %wpa_supplicant network interface data
 381  * @id: new network id
 382  *
 383  * Notify listeners about adding new network
 384  */
 385 static void wpas_dbus_signal_network_added(struct wpa_supplicant *wpa_s,
 386                                            int id)
 387 {
 388         wpas_dbus_signal_network(wpa_s, id, "NetworkAdded");
 389 }
 390
 391
 392 /**
 393  * wpas_dbus_signal_network_removed - Send a network removed signal
 394  * @wpa_s: %wpa_supplicant network interface data
 395  * @id: network id
 396  *
 397  * Notify listeners about removing a network
 398  */
 399 static void wpas_dbus_signal_network_removed(struct wpa_supplicant *wpa_s,
 400                                              int id)
 401 {
 402         wpas_dbus_signal_network(wpa_s, id, "NetworkRemoved");
 403 }
 404
 405
 406 /**
 407  * wpas_dbus_signal_network_selected - Send a network selected signal
 408  * @wpa_s: %wpa_supplicant network interface data
 409  * @id: network id
 410  *
 411  * Notify listeners about selecting a network
 412  */
 413 static void wpas_dbus_signal_network_selected(struct wpa_supplicant *wpa_s,
 414                                               int id)
 415 {
 416         wpas_dbus_signal_network(wpa_s, id, "NetworkSelected");
 417 }
 418
 419
 420 /**
 421  * wpas_dbus_signal_state_changed - Send a state changed signal
 422  * @wpa_s: %wpa_supplicant network interface data
 423  * @new_state: new state wpa_supplicant is entering
 424  * @old_state: old state wpa_supplicant is leaving
 425  *
 426  * Notify listeners that wpa_supplicant has changed state
 427  */
 428 static void wpas_dbus_signal_state_changed(struct wpa_supplicant *wpa_s,
 429                                            enum wpa_states new_state,
 430                                            enum wpa_states old_state)
 431 {
 432         struct wpas_dbus_priv *iface;
 433         DBusMessage *_signal = NULL;
 434         const char *path;
 435         char *new_state_str, *old_state_str;
 436         char *tmp;
 437
 438         /* Do nothing if the control interface is not turned on */
 439         if (wpa_s->global == NULL)
 440                 return;
 441         iface = wpa_s->global->dbus;
 442         if (iface == NULL)
 443                 return;
 444
 445         /* Only send signal if state really changed */
 446         if (new_state == old_state)
 447                 return;
 448
 449         path = wpas_dbus_get_path(wpa_s);
 450         if (path == NULL) {
 451                 perror("wpas_dbus_signal_state_changed[dbus]: "
 452                        "interface didn't have a dbus path");
 453                 wpa_printf(MSG_ERROR,
 454                            "wpas_dbus_signal_state_changed[dbus]: "
 455                            "interface didn't have a dbus path; can't send "
 456                            "signal.");
 457                 return;
 458         }
 459         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_INTERFACE,
 460                                           "StateChanged");
 461         if (_signal == NULL) {
 462                 perror("wpas_dbus_signal_state_changed[dbus]: "
 463                        "couldn't create dbus signal; likely out of memory");
 464                 wpa_printf(MSG_ERROR,
 465                            "wpas_dbus_signal_state_changed[dbus]: "
 466                            "couldn't create dbus signal; likely out of "
 467                            "memory.");
 468                 return;
 469         }
 470
 471         new_state_str = os_strdup(wpa_supplicant_state_txt(new_state));
 472         old_state_str = os_strdup(wpa_supplicant_state_txt(old_state));
 473         if (new_state_str == NULL || old_state_str == NULL) {
 474                 perror("wpas_dbus_signal_state_changed[dbus]: "
 475                        "couldn't convert state strings");
 476                 wpa_printf(MSG_ERROR,
 477                            "wpas_dbus_signal_state_changed[dbus]: "
 478                            "couldn't convert state strings.");
 479                 goto out;
 480         }
 481
 482         /* make state string lowercase to fit new DBus API convention */
 483         tmp = new_state_str;
 484         while (*tmp) {
 485                 *tmp = tolower(*tmp);
 486                 tmp++;
 487         }
 488         tmp = old_state_str;
 489         while (*tmp) {
 490                 *tmp = tolower(*tmp);
 491                 tmp++;
 492         }
 493
 494         if (!dbus_message_append_args(_signal,
 495                                       DBUS_TYPE_STRING, &new_state_str,
 496                                       DBUS_TYPE_STRING, &old_state_str,
 497                                       DBUS_TYPE_INVALID)) {
 498                 perror("wpas_dbus_signal_state_changed[dbus]: "
 499                        "not enough memory to construct state change signal.");
 500                 wpa_printf(MSG_ERROR,
 501                            "wpas_dbus_signal_state_changed[dbus]: "
 502                            "not enough memory to construct state change "
 503                            "signal.");
 504                 goto out;
 505         }
 506
 507         dbus_connection_send(iface->con, _signal, NULL);
 508
 509 out:
 510         dbus_message_unref(_signal);
 511         os_free(new_state_str);
 512         os_free(old_state_str);
 513 }
 514
 515
 516 /**
 517  * wpas_dbus_signal_network_enabled_changed - Signals Enabled property changes
 518  * @wpa_s: %wpa_supplicant network interface data
 519  * @ssid: configured network which Enabled property has changed
 520  *
 521  * Sends PropertyChanged signals containing new value of Enabled property
 522  * for specified network
 523  */
 524 static void wpas_dbus_signal_network_enabled_changed(
 525         struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
 526 {
 527
 528         struct network_handler_args args = {wpa_s, ssid};
 529
 530         char path[WPAS_DBUS_OBJECT_PATH_MAX];
 531         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
 532                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%d",
 533                     wpas_dbus_get_path(wpa_s), ssid->id);
 534
 535         wpa_dbus_signal_property_changed(wpa_s->global->dbus,
 536                                          (WPADBusPropertyAccessor)
 537                                          wpas_dbus_getter_enabled, &args,
 538                                          path, WPAS_DBUS_NEW_IFACE_NETWORK,
 539                                          "Enabled");
 540 }
 541
 542
 543 #ifdef CONFIG_WPS
 544
 545 /**
 546  * wpas_dbus_signal_wps_event_success - Signals Success WPS event
 547  * @wpa_s: %wpa_supplicant network interface data
 548  *
 549  * Sends Event dbus signal with name "success" and empty dict as arguments
 550  */
 551 static void wpas_dbus_signal_wps_event_success(struct wpa_supplicant *wpa_s)
 552 {
 553
 554         DBusMessage *_signal = NULL;
 555         DBusMessageIter iter, dict_iter;
 556         struct wpas_dbus_priv *iface;
 557         char *key = "success";
 558         const char *path;
 559
 560         iface = wpa_s->global->dbus;
 561
 562         /* Do nothing if the control interface is not turned on */
 563         if (iface == NULL)
 564                 return;
 565
 566         path = wpas_dbus_get_path(wpa_s);
 567         if (!path) {
 568                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_success"
 569                            "[dbus]: interface has no dbus path set");
 570                 return;
 571         }
 572
 573         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_WPS,
 574                                           "Event");
 575         if (!_signal) {
 576                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_success"
 577                            "[dbus]: out of memory when creating a signal");
 578                 return;
 579         }
 580
 581         dbus_message_iter_init_append(_signal, &iter);
 582
 583         if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &key) ||
 584             !wpa_dbus_dict_open_write(&iter, &dict_iter) ||
 585             !wpa_dbus_dict_close_write(&iter, &dict_iter)) {
 586                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_success"
 587                            "[dbus]: out of memory");
 588                 goto out;
 589         }
 590
 591         dbus_connection_send(iface->con, _signal, NULL);
 592 out:
 593         dbus_message_unref(_signal);
 594 }
 595
 596
 597 /**
 598  * wpas_dbus_signal_wps_event_fail - Signals Fail WPS event
 599  * @wpa_s: %wpa_supplicant network interface data
 600  *
 601  * Sends Event dbus signal with name "fail" and dictionary containing
 602  * "msg field with fail message number (int32) as arguments
 603  */
 604 static void wpas_dbus_signal_wps_event_fail(struct wpa_supplicant *wpa_s,
 605                                             struct wps_event_fail *fail)
 606 {
 607
 608         DBusMessage *_signal = NULL;
 609         DBusMessageIter iter, dict_iter;
 610         struct wpas_dbus_priv *iface;
 611         char *key = "fail";
 612         const char *path;
 613
 614         iface = wpa_s->global->dbus;
 615
 616         /* Do nothing if the control interface is not turned on */
 617         if (iface == NULL)
 618                 return;
 619
 620         path = wpas_dbus_get_path(wpa_s);
 621         if (!path) {
 622                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_fail[dbus]: "
 623                            "interface has no dbus path set");
 624                 return;
 625         }
 626
 627         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_WPS,
 628                                           "Event");
 629         if (!_signal) {
 630                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_fail[dbus]: "
 631                            "out of memory when creating a signal");
 632                 return;
 633         }
 634
 635         dbus_message_iter_init_append(_signal, &iter);
 636
 637         if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &key) ||
 638             !wpa_dbus_dict_open_write(&iter, &dict_iter) ||
 639             !wpa_dbus_dict_append_int32(&dict_iter, "msg", fail->msg) ||
 640             !wpa_dbus_dict_close_write(&iter, &dict_iter)) {
 641                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_fail[dbus]: "
 642                            "out of memory");
 643                 goto out;
 644         }
 645
 646         dbus_connection_send(iface->con, _signal, NULL);
 647 out:
 648         dbus_message_unref(_signal);
 649 }
 650
 651
 652 /**
 653  * wpas_dbus_signal_wps_event_m2d - Signals M2D WPS event
 654  * @wpa_s: %wpa_supplicant network interface data
 655  *
 656  * Sends Event dbus signal with name "m2d" and dictionary containing
 657  * fields of wps_event_m2d structure.
 658  */
 659 static void wpas_dbus_signal_wps_event_m2d(struct wpa_supplicant *wpa_s,
 660                                            struct wps_event_m2d *m2d)
 661 {
 662
 663         DBusMessage *_signal = NULL;
 664         DBusMessageIter iter, dict_iter;
 665         struct wpas_dbus_priv *iface;
 666         char *key = "m2d";
 667         const char *path;
 668
 669         iface = wpa_s->global->dbus;
 670
 671         /* Do nothing if the control interface is not turned on */
 672         if (iface == NULL)
 673                 return;
 674
 675         path = wpas_dbus_get_path(wpa_s);
 676         if (!path) {
 677                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_m2d[dbus]: "
 678                            "interface has no dbus path set");
 679                 return;
 680         }
 681
 682         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_WPS,
 683                                           "Event");
 684         if (!_signal) {
 685                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_m2d[dbus]: "
 686                            "out of memory when creating a signal");
 687                 return;
 688         }
 689
 690         dbus_message_iter_init_append(_signal, &iter);
 691
 692         if (!(dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &key) &&
 693               wpa_dbus_dict_open_write(&iter, &dict_iter) &&
 694               wpa_dbus_dict_append_uint16(&dict_iter, "config_methods",
 695                                           m2d->config_methods) &&
 696               wpa_dbus_dict_append_byte_array(&dict_iter, "manufacturer",
 697                                               (const char *) m2d->manufacturer,
 698                                               m2d->manufacturer_len) &&
 699               wpa_dbus_dict_append_byte_array(&dict_iter, "model_name",
 700                                               (const char *) m2d->model_name,
 701                                               m2d->model_name_len) &&
 702               wpa_dbus_dict_append_byte_array(&dict_iter, "model_number",
 703                                               (const char *) m2d->model_number,
 704                                               m2d->model_number_len) &&
 705               wpa_dbus_dict_append_byte_array(&dict_iter, "serial_number",
 706                                               (const char *)
 707                                               m2d->serial_number,
 708                                               m2d->serial_number_len) &&
 709               wpa_dbus_dict_append_byte_array(&dict_iter, "dev_name",
 710                                               (const char *) m2d->dev_name,
 711                                               m2d->dev_name_len) &&
 712               wpa_dbus_dict_append_byte_array(&dict_iter, "primary_dev_type",
 713                                               (const char *)
 714                                               m2d->primary_dev_type, 8) &&
 715               wpa_dbus_dict_append_uint16(&dict_iter, "config_error",
 716                                           m2d->config_error) &&
 717               wpa_dbus_dict_append_uint16(&dict_iter, "dev_password_id",
 718                                           m2d->dev_password_id) &&
 719               wpa_dbus_dict_close_write(&iter, &dict_iter))) {
 720                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_event_m2d[dbus]: "
 721                            "out of memory");
 722                 goto out;
 723         }
 724
 725         dbus_connection_send(iface->con, _signal, NULL);
 726 out:
 727         dbus_message_unref(_signal);
 728 }
 729
 730
 731 /**
 732  * wpas_dbus_signal_wps_cred - Signals new credentials
 733  * @wpa_s: %wpa_supplicant network interface data
 734  *
 735  * Sends signal with credentials in directory argument
 736  */
 737 static void wpas_dbus_signal_wps_cred(struct wpa_supplicant *wpa_s,
 738                                       const struct wps_credential *cred)
 739 {
 740         DBusMessage *_signal = NULL;
 741         DBusMessageIter iter, dict_iter;
 742         struct wpas_dbus_priv *iface;
 743         const char *path;
 744         char *auth_type[6]; /* we have six possible authorization types */
 745         int at_num = 0;
 746         char *encr_type[4]; /* we have four possible encryption types */
 747         int et_num = 0;
 748
 749         iface = wpa_s->global->dbus;
 750
 751         /* Do nothing if the control interface is not turned on */
 752         if (iface == NULL)
 753                 return;
 754
 755         path = wpas_dbus_get_path(wpa_s);
 756         if (!path) {
 757                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_cred[dbus]: "
 758                            "interface has no dbus path set");
 759                 return;
 760         }
 761
 762         _signal = dbus_message_new_signal(path, WPAS_DBUS_NEW_IFACE_WPS,
 763                                           "Credentials");
 764         if (!_signal) {
 765                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_wps_cred[dbus]: "
 766                            "out of memory when creating a signal");
 767                 return;
 768         }
 769
 770         dbus_message_iter_init_append(_signal, &iter);
 771
 772         if (!wpa_dbus_dict_open_write(&iter, &dict_iter)) {
 773                 perror("wpas_dbus_signal_wps_cred[dbus]: out of memory "
 774                        "when opening a dictionary");
 775                 goto nomem;
 776         }
 777
 778         if (cred->auth_type & WPS_AUTH_OPEN)
 779                 auth_type[at_num++] = "open";
 780         if (cred->auth_type & WPS_AUTH_WPAPSK)
 781                 auth_type[at_num++] = "wpa-psk";
 782         if (cred->auth_type & WPS_AUTH_SHARED)
 783                 auth_type[at_num++] = "shared";
 784         if (cred->auth_type & WPS_AUTH_WPA)
 785                 auth_type[at_num++] = "wpa-eap";
 786         if (cred->auth_type & WPS_AUTH_WPA2)
 787                 auth_type[at_num++] = "wpa2-eap";
 788         if (cred->auth_type & WPS_AUTH_WPA2PSK)
 789                 auth_type[at_num++] =
 790                 "wpa2-psk";
 791
 792         if (cred->encr_type & WPS_ENCR_NONE)
 793                 encr_type[et_num++] = "none";
 794         if (cred->encr_type & WPS_ENCR_WEP)
 795                 encr_type[et_num++] = "wep";
 796         if (cred->encr_type & WPS_ENCR_TKIP)
 797                 encr_type[et_num++] = "tkip";
 798         if (cred->encr_type & WPS_ENCR_AES)
 799                 encr_type[et_num++] = "aes";
 800
 801         if (wpa_s->current_ssid) {
 802                 if (!wpa_dbus_dict_append_byte_array(
 803                             &dict_iter, "BSSID",
 804                             (const char *) wpa_s->current_ssid->bssid,
 805                             ETH_ALEN)) {
 806                         perror("wpas_dbus_signal_wps_cred[dbus]: out of "
 807                                "memory when appending bssid to dictionary");
 808                         goto nomem;
 809                 }
 810         }
 811
 812         if (!(wpa_dbus_dict_append_byte_array(&dict_iter, "SSID",
 813                                               (const char *) cred->ssid,
 814                                               cred->ssid_len) &&
 815               wpa_dbus_dict_append_string_array(&dict_iter, "AuthType",
 816                                                 (const char **) auth_type,
 817                                                 at_num) &&
 818               wpa_dbus_dict_append_string_array(&dict_iter, "EncrType",
 819                                                 (const char **) encr_type,
 820                                                 et_num) &&
 821               wpa_dbus_dict_append_byte_array(&dict_iter, "Key",
 822                                               (const char *) cred->key,
 823                                               cred->key_len) &&
 824               wpa_dbus_dict_append_uint32(&dict_iter, "KeyIndex",
 825                                           cred->key_idx))) {
 826                 perror("wpas_dbus_signal_wps_cred[dbus]: out of memory "
 827                        "when appending to dictionary");
 828                 goto nomem;
 829         }
 830
 831         if (!wpa_dbus_dict_close_write(&iter, &dict_iter)) {
 832                 perror("wpas_dbus_signal_wps_cred[dbus]: out of memory "
 833                        "when closing a dictionary");
 834                 goto nomem;
 835         }
 836
 837         dbus_connection_send(iface->con, _signal, NULL);
 838
 839 nomem:
 840         dbus_message_unref(_signal);
 841 }
 842
 843 #endif /* CONFIG_WPS */
 844
 845
 846 /**
 847  * wpas_dbus_signal_prop_changed - Signals change of property
 848  * @wpa_s: %wpa_supplicant network interface data
 849  * @property: indicates which property has changed
 850  *
 851  * Sends ProertyChanged signals with path, interface and arguments
 852  * depending on which property has changed.
 853  */
 854 static void wpas_dbus_signal_prop_changed(struct wpa_supplicant *wpa_s,
 855                                           enum wpas_dbus_prop property)
 856 {
 857         WPADBusPropertyAccessor getter;
 858         char *iface;
 859         char *prop;
 860         void *arg;
 861
 862         switch (property) {
 863         case WPAS_DBUS_PROP_AP_SCAN:
 864                 getter = (WPADBusPropertyAccessor) wpas_dbus_getter_ap_scan;
 865                 arg = wpa_s;
 866                 iface = WPAS_DBUS_NEW_IFACE_INTERFACE;
 867                 prop = "ApScan";
 868                 break;
 869         case WPAS_DBUS_PROP_SCANNING:
 870                 getter = (WPADBusPropertyAccessor) wpas_dbus_getter_scanning;
 871                 arg = wpa_s;
 872                 iface = WPAS_DBUS_NEW_IFACE_INTERFACE;
 873                 prop = "Scanning";
 874                 break;
 875         case WPAS_DBUS_PROP_CURRENT_BSS:
 876                 getter = (WPADBusPropertyAccessor)
 877                         wpas_dbus_getter_current_bss;
 878                 arg = wpa_s;
 879                 iface = WPAS_DBUS_NEW_IFACE_INTERFACE;
 880                 prop = "CurrentBSS";
 881                 break;
 882         case WPAS_DBUS_PROP_CURRENT_NETWORK:
 883                 getter = (WPADBusPropertyAccessor)
 884                         wpas_dbus_getter_current_network;
 885                 arg = wpa_s;
 886                 iface = WPAS_DBUS_NEW_IFACE_INTERFACE;
 887                 prop = "CurrentNetwork";
 888                 break;
 889         default:
 890                 wpa_printf(MSG_ERROR, "wpas_dbus_signal_prop_changed[dbus]: "
 891                            "Unknown Property enum value %d", property);
 892                 return;
 893         }
 894
 895         wpa_dbus_signal_property_changed(wpa_s->global->dbus,
 896                                          getter, arg,
 897                                          wpas_dbus_get_path(wpa_s), iface,
 898                                          prop);
 899 }
 900
 901
 902 /**
 903  * wpas_dbus_signal_debug_params_changed - Signals change of debug params
 904  * @global: wpa_global structure
 905  *
 906  * Sends ProertyChanged signals informing that debug params has changed.
 907  */
 908 static void wpas_dbus_signal_debug_params_changed(struct wpa_global *global)
 909 {
 910
 911         wpa_dbus_signal_property_changed(global->dbus,
 912                                          (WPADBusPropertyAccessor)
 913                                          wpas_dbus_getter_debug_params,
 914                                          global, WPAS_DBUS_NEW_PATH,
 915                                          WPAS_DBUS_NEW_INTERFACE,
 916                                          "DebugParams");
 917 }
 918
 919
 920 struct wpas_dbus_method {
 921         const char *name;
 922         const char *iface;
 923         WPADBusMethodHandler handler;
 924         struct wpa_dbus_argument args[3];
 925 };
 926
 927 struct wpas_dbus_property {
 928         const char *name;
 929         const char *iface;
 930         const char *type;
 931         WPADBusPropertyAccessor getter;
 932         WPADBusPropertyAccessor setter;
 933         enum dbus_prop_access _access;
 934 };
 935
 936 struct wpas_dbus_signal {
 937         const char *name;
 938         const char *iface;
 939         struct wpa_dbus_argument args[3];
 940 };
 941
 942
 943 static void wpas_dbus_register(struct wpa_dbus_object_desc *obj_desc,
 944                                void *priv,
 945                                const struct wpas_dbus_method *methods,
 946                                const struct wpas_dbus_property *properties,
 947                                const struct wpas_dbus_signal *signals)
 948 {
 949         int i;
 950
 951         for (i = 0; methods && methods[i].name; i++) {
 952                 wpa_dbus_method_register(obj_desc, methods[i].iface,
 953                                          methods[i].name, methods[i].handler,
 954                                          priv, NULL, methods[i].args);
 955         }
 956
 957         for (i = 0; properties && properties[i].name; i++) {
 958                 wpa_dbus_property_register(obj_desc, properties[i].iface,
 959                                            properties[i].name,
 960                                            properties[i].type,
 961                                            properties[i].getter,
 962                                            properties[i].setter,
 963                                            priv, NULL, properties[i]._access);
 964         }
 965
 966         for (i = 0; signals && signals[i].name; i++) {
 967                 wpa_dbus_signal_register(obj_desc, signals[i].iface,
 968                                          signals[i].name, signals[i].args);
 969         }
 970 }
 971
 972
 973 static const struct wpas_dbus_method wpas_dbus_global_methods[] = {
 974         { "CreateInterface", WPAS_DBUS_NEW_INTERFACE,
 975           (WPADBusMethodHandler) &wpas_dbus_handler_create_interface,
 976           {
 977                   { "args", "a{sv}", ARG_IN },
 978                   { "path", "o", ARG_OUT },
 979                   END_ARGS
 980           }
 981         },
 982         { "RemoveInterface", WPAS_DBUS_NEW_INTERFACE,
 983           (WPADBusMethodHandler) &wpas_dbus_handler_remove_interface,
 984           {
 985                   { "path", "o", ARG_IN },
 986                   END_ARGS
 987           }
 988         },
 989         { "GetInterface", WPAS_DBUS_NEW_INTERFACE,
 990           (WPADBusMethodHandler) &wpas_dbus_handler_get_interface,
 991           {
 992                   { "ifname", "s", ARG_IN },
 993                   { "path", "o", ARG_OUT },
 994                   END_ARGS
 995           }
 996         },
 997         { NULL, NULL, NULL, { END_ARGS } }
 998 };
 999
1000 static const struct wpas_dbus_property wpas_dbus_global_properties[] = {
1001         { "DebugParams", WPAS_DBUS_NEW_INTERFACE, "(ibb)",
1002           (WPADBusPropertyAccessor) &wpas_dbus_getter_debug_params,
1003           (WPADBusPropertyAccessor) &wpas_dbus_setter_debug_params,
1004           RW
1005         },
1006         { "Interfaces", WPAS_DBUS_NEW_INTERFACE, "ao",
1007           (WPADBusPropertyAccessor) &wpas_dbus_getter_interfaces,
1008           NULL,
1009           R
1010         },
1011         { "EapMethods", WPAS_DBUS_NEW_INTERFACE, "as",
1012           wpas_dbus_getter_eap_methods,
1013           NULL,
1014           R
1015         },
1016         { NULL, NULL, NULL, NULL, NULL, 0 }
1017 };
1018
1019 static const struct wpas_dbus_signal wpas_dbus_global_signals[] = {
1020         { "InterfaceAdded", WPAS_DBUS_NEW_INTERFACE,
1021           {
1022                   { "path", "o", ARG_OUT },
1023                   END_ARGS
1024           }
1025         },
1026         { "InterfaceRemoved", WPAS_DBUS_NEW_INTERFACE,
1027           {
1028                   { "path", "o", ARG_OUT },
1029                   END_ARGS
1030           }
1031         },
1032         { "PropertiesChanged", WPAS_DBUS_NEW_INTERFACE,
1033           {
1034                   { "properties", "a{sv}", ARG_OUT },
1035                   END_ARGS
1036           }
1037         },
1038         { NULL, NULL, { END_ARGS } }
1039 };
1040
1041
1042 /**
1043  * wpas_dbus_ctrl_iface_init - Initialize dbus control interface
1044  * @global: Pointer to global data from wpa_supplicant_init()
1045  * Returns: 0 on success or -1 on failure
1046  *
1047  * Initialize the dbus control interface for wpa_supplicantand and start
1048  * receiving commands from external programs over the bus.
1049  */
1050 int wpas_dbus_ctrl_iface_init(struct wpas_dbus_priv *priv)
1051 {
1052         struct wpa_dbus_object_desc *obj_desc;
1053         int ret;
1054
1055         obj_desc = os_zalloc(sizeof(struct wpa_dbus_object_desc));
1056         if (!obj_desc) {
1057                 wpa_printf(MSG_ERROR, "Not enough memory "
1058                            "to create object description");
1059                 return -1;
1060         }
1061
1062         wpas_dbus_register(obj_desc, priv->global, wpas_dbus_global_methods,
1063                            wpas_dbus_global_properties,
1064                            wpas_dbus_global_signals);
1065
1066         wpa_printf(MSG_DEBUG, "dbus: Register D-Bus object '%s'",
1067                    WPAS_DBUS_NEW_PATH);
1068         ret = wpa_dbus_ctrl_iface_init(priv, WPAS_DBUS_NEW_PATH,
1069                                        WPAS_DBUS_NEW_SERVICE,
1070                                        obj_desc);
1071         if (ret < 0)
1072                 free_dbus_object_desc(obj_desc);
1073         else
1074                 priv->dbus_new_initialized = 1;
1075
1076         return ret;
1077 }
1078
1079
1080 /**
1081  * wpas_dbus_ctrl_iface_deinit - Deinitialize dbus ctrl interface for
1082  * wpa_supplicant
1083  * @iface: Pointer to dbus private data from wpas_dbus_init()
1084  *
1085  * Deinitialize the dbus control interface that was initialized with
1086  * wpas_dbus_ctrl_iface_init().
1087  */
1088 void wpas_dbus_ctrl_iface_deinit(struct wpas_dbus_priv *iface)
1089 {
1090         if (!iface->dbus_new_initialized)
1091                 return;
1092         wpa_printf(MSG_DEBUG, "dbus: Unregister D-Bus object '%s'",
1093                    WPAS_DBUS_NEW_PATH);
1094         dbus_connection_unregister_object_path(iface->con,
1095                                                WPAS_DBUS_NEW_PATH);
1096 }
1097
1098
1099 static void wpa_dbus_free(void *ptr)
1100 {
1101         os_free(ptr);
1102 }
1103
1104
1105 /**
1106  * wpas_dbus_register_network - Register a configured network with dbus
1107  * @wpa_s: wpa_supplicant interface structure
1108  * @ssid: network configuration data
1109  * Returns: 0 on success, -1 on failure
1110  *
1111  * Registers network representing object with dbus
1112  */
1113 static int wpas_dbus_register_network(struct wpa_supplicant *wpa_s,
1114                                       struct wpa_ssid *ssid)
1115 {
1116         struct wpas_dbus_priv *ctrl_iface;
1117         struct wpa_dbus_object_desc *obj_desc;
1118
1119         struct network_handler_args *arg1 = NULL;
1120         struct network_handler_args *arg2 = NULL;
1121
1122         char *net_obj_path;
1123
1124         struct wpa_dbus_argument sargs[] = {
1125                 { "properties", "a{sv}", ARG_OUT },
1126                 END_ARGS
1127         };
1128
1129         /* Do nothing if the control interface is not turned on */
1130         if (wpa_s == NULL || wpa_s->global == NULL)
1131                 return 0;
1132         ctrl_iface = wpa_s->global->dbus;
1133         if (ctrl_iface == NULL)
1134                 return 0;
1135
1136         net_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
1137         if (net_obj_path == NULL)
1138                 return -1;
1139         os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
1140                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
1141                     wpas_dbus_get_path(wpa_s), ssid->id);
1142
1143         wpa_printf(MSG_DEBUG, "dbus: Register network object '%s'",
1144                    net_obj_path);
1145         obj_desc = os_zalloc(sizeof(struct wpa_dbus_object_desc));
1146         if (!obj_desc) {
1147                 wpa_printf(MSG_ERROR, "Not enough memory "
1148                            "to create object description");
1149                 goto err;
1150         }
1151
1152         /* allocate memory for handlers arguments */
1153         arg1 =  os_zalloc(sizeof(struct network_handler_args));
1154         if (!arg1) {
1155                 wpa_printf(MSG_ERROR, "Not enough memory "
1156                            "to create arguments for method");
1157                 goto err;
1158         }
1159         arg2 =  os_zalloc(sizeof(struct network_handler_args));
1160         if (!arg2) {
1161                 wpa_printf(MSG_ERROR, "Not enough memory "
1162                            "to create arguments for method");
1163                 goto err;
1164         }
1165
1166         arg1->wpa_s = wpa_s;
1167         arg1->ssid = ssid;
1168         arg2->wpa_s = wpa_s;
1169         arg2->ssid = ssid;
1170
1171         /* Enabled property */
1172         wpa_dbus_property_register(obj_desc, WPAS_DBUS_NEW_IFACE_NETWORK,
1173                                    "Enabled", "b",
1174                                    (WPADBusPropertyAccessor)
1175                                    wpas_dbus_getter_enabled,
1176                                    (WPADBusPropertyAccessor)
1177                                    wpas_dbus_setter_enabled,
1178                                    arg1, wpa_dbus_free, RW);
1179
1180         /* Properties property */
1181         wpa_dbus_property_register(obj_desc, WPAS_DBUS_NEW_IFACE_NETWORK,
1182                                    "Properties", "a{sv}",
1183                                    (WPADBusPropertyAccessor)
1184                                    wpas_dbus_getter_network_properties,
1185                                    (WPADBusPropertyAccessor)
1186                                    wpas_dbus_setter_network_properties,
1187                                    arg2, wpa_dbus_free, RW);
1188
1189         /* PropertiesChanged signal */
1190         wpa_dbus_signal_register(obj_desc, WPAS_DBUS_NEW_IFACE_NETWORK,
1191                                  "PropertiesChanged", sargs);
1192
1193         if (wpa_dbus_register_object_per_iface(ctrl_iface, net_obj_path,
1194                                                wpa_s->ifname, obj_desc))
1195                 goto err;
1196
1197         wpas_dbus_signal_network_added(wpa_s, ssid->id);
1198
1199         os_free(net_obj_path);
1200         return 0;
1201
1202 err:
1203         os_free(net_obj_path);
1204         os_free(obj_desc);
1205         os_free(arg1);
1206         os_free(arg2);
1207         return -1;
1208 }
1209
1210
1211 /**
1212  * wpas_dbus_unregister_network - Unregister a configured network from dbus
1213  * @wpa_s: wpa_supplicant interface structure
1214  * @nid: network id
1215  * Returns: 0 on success, -1 on failure
1216  *
1217  * Unregisters network representing object from dbus
1218  */
1219 static int wpas_dbus_unregister_network(struct wpa_supplicant *wpa_s, int nid)
1220 {
1221         struct wpas_dbus_priv *ctrl_iface;
1222         char *net_obj_path;
1223         int ret;
1224
1225         /* Do nothing if the control interface is not turned on */
1226         if (wpa_s == NULL || wpa_s->global == NULL)
1227                 return 0;
1228         ctrl_iface = wpa_s->global->dbus;
1229         if (ctrl_iface == NULL)
1230                 return 0;
1231
1232         net_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
1233         if (net_obj_path == NULL)
1234                 return -1;
1235         os_snprintf(net_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
1236                     "%s/" WPAS_DBUS_NEW_NETWORKS_PART "/%u",
1237                     wpas_dbus_get_path(wpa_s), nid);
1238
1239         wpa_printf(MSG_DEBUG, "dbus: Unregister network object '%s'",
1240                    net_obj_path);
1241         ret = wpa_dbus_unregister_object_per_iface(ctrl_iface, net_obj_path);
1242
1243         if (!ret)
1244                 wpas_dbus_signal_network_removed(wpa_s, nid);
1245
1246         os_free(net_obj_path);
1247         return ret;
1248 }
1249
1250
1251 /**
1252  * wpas_dbus_unregister_bss - Unregister a scanned BSS from dbus
1253  * @wpa_s: wpa_supplicant interface structure
1254  * @bssid: scanned network bssid
1255  * @id: unique BSS identifier
1256  * Returns: 0 on success, -1 on failure
1257  *
1258  * Unregisters BSS representing object from dbus
1259  */
1260 static int wpas_dbus_unregister_bss(struct wpa_supplicant *wpa_s,
1261                                     u8 bssid[ETH_ALEN], unsigned int id)
1262 {
1263         struct wpas_dbus_priv *ctrl_iface;
1264         char *bss_obj_path;
1265
1266         /* Do nothing if the control interface is not turned on */
1267         if (wpa_s == NULL || wpa_s->global == NULL)
1268                 return 0;
1269         ctrl_iface = wpa_s->global->dbus;
1270         if (ctrl_iface == NULL)
1271                 return 0;
1272
1273         bss_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
1274         if (bss_obj_path == NULL)
1275                 return -1;
1276
1277         os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
1278                     "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
1279                     wpas_dbus_get_path(wpa_s), id);
1280
1281         wpa_printf(MSG_DEBUG, "dbus: Unregister BSS object '%s'",
1282                    bss_obj_path);
1283         if (wpa_dbus_unregister_object_per_iface(ctrl_iface, bss_obj_path)) {
1284                 wpa_printf(MSG_ERROR,
1285                            "Cannot unregister BSSID dbus object %s.",
1286                            bss_obj_path);
1287                 os_free(bss_obj_path);
1288                 return -1;
1289         }
1290
1291         wpas_dbus_signal_bss_removed(wpa_s, bss_obj_path);
1292
1293         os_free(bss_obj_path);
1294         return 0;
1295 }
1296
1297
1298 /**
1299  * wpas_dbus_register_bss - Register a scanned BSS with dbus
1300  * @wpa_s: wpa_supplicant interface structure
1301  * @bssid: scanned network bssid
1302  * @id: unique BSS identifier
1303  * Returns: 0 on success, -1 on failure
1304  *
1305  * Registers BSS representing object with dbus
1306  */
1307 static int wpas_dbus_register_bss(struct wpa_supplicant *wpa_s,
1308                                   u8 bssid[ETH_ALEN], unsigned int id)
1309 {
1310         struct wpas_dbus_priv *ctrl_iface;
1311         struct wpa_dbus_object_desc *obj_desc;
1312         char *bss_obj_path;
1313
1314         struct bss_handler_args *arg = NULL;
1315
1316         /* Do nothing if the control interface is not turned on */
1317         if (wpa_s == NULL || wpa_s->global == NULL)
1318                 return 0;
1319         ctrl_iface = wpa_s->global->dbus;
1320         if (ctrl_iface == NULL)
1321                 return 0;
1322
1323         bss_obj_path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
1324         if (bss_obj_path == NULL)
1325                 return -1;
1326
1327         os_snprintf(bss_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
1328                     "%s/" WPAS_DBUS_NEW_BSSIDS_PART "/%u",
1329                     wpas_dbus_get_path(wpa_s), id);
1330
1331         obj_desc = os_zalloc(sizeof(struct wpa_dbus_object_desc));
1332         if (!obj_desc) {
1333                 wpa_printf(MSG_ERROR, "Not enough memory "
1334                            "to create object description");
1335                 goto err;
1336         }
1337
1338         arg = os_zalloc(sizeof(struct bss_handler_args));
1339         if (!arg) {
1340                 wpa_printf(MSG_ERROR, "Not enough memory "
1341                            "to create arguments for handler");
1342                 goto err;
1343         }
1344         arg->wpa_s = wpa_s;
1345         arg->id = id;
1346
1347         /* Properties property */
1348         wpa_dbus_property_register(obj_desc, WPAS_DBUS_NEW_IFACE_BSSID,
1349                                    "Properties", "a{sv}",
1350                                    (WPADBusPropertyAccessor)
1351                                    wpas_dbus_getter_bss_properties, NULL,
1352                                    arg, wpa_dbus_free, R);
1353
1354         wpa_printf(MSG_DEBUG, "dbus: Register BSS object '%s'",
1355                    bss_obj_path);
1356         if (wpa_dbus_register_object_per_iface(ctrl_iface, bss_obj_path,
1357                                                wpa_s->ifname, obj_desc)) {
1358                 wpa_printf(MSG_ERROR,
1359                            "Cannot register BSSID dbus object %s.",
1360                            bss_obj_path);
1361                 goto err;
1362         }
1363
1364         wpas_dbus_signal_bss_added(wpa_s, bss_obj_path);
1365
1366         os_free(bss_obj_path);
1367         return 0;
1368
1369 err:
1370         os_free(bss_obj_path);
1371         os_free(obj_desc);
1372         os_free(arg);
1373         return -1;
1374 }
1375
1376
1377 static const struct wpas_dbus_method wpas_dbus_interface_methods[] = {
1378         { "Scan", WPAS_DBUS_NEW_IFACE_INTERFACE,
1379           (WPADBusMethodHandler) &wpas_dbus_handler_scan,
1380           {
1381                   { "args", "a{sv}", ARG_IN },
1382                   END_ARGS
1383           }
1384         },
1385         { "Disconnect", WPAS_DBUS_NEW_IFACE_INTERFACE,
1386           (WPADBusMethodHandler) &wpas_dbus_handler_disconnect,
1387           {
1388                   END_ARGS
1389           }
1390         },
1391         { "AddNetwork", WPAS_DBUS_NEW_IFACE_INTERFACE,
1392           (WPADBusMethodHandler) &wpas_dbus_handler_add_network,
1393           {
1394                   { "args", "a{sv}", ARG_IN },
1395                   { "path", "o", ARG_OUT },
1396                   END_ARGS
1397           }
1398         },
1399         { "RemoveNetwork", WPAS_DBUS_NEW_IFACE_INTERFACE,
1400           (WPADBusMethodHandler) &wpas_dbus_handler_remove_network,
1401           {
1402                   { "path", "o", ARG_IN },
1403                   END_ARGS
1404           }
1405         },
1406         { "SelectNetwork", WPAS_DBUS_NEW_IFACE_INTERFACE,
1407           (WPADBusMethodHandler) &wpas_dbus_handler_select_network,
1408           {
1409                   { "path", "o", ARG_IN },
1410                   END_ARGS
1411           }
1412         },
1413         { "AddBlob", WPAS_DBUS_NEW_IFACE_INTERFACE,
1414           (WPADBusMethodHandler) &wpas_dbus_handler_add_blob,
1415           {
1416                   { "name", "s", ARG_IN },
1417                   { "data", "ay", ARG_IN },
1418                   END_ARGS
1419           }
1420         },
1421         { "GetBlob", WPAS_DBUS_NEW_IFACE_INTERFACE,
1422           (WPADBusMethodHandler) &wpas_dbus_handler_get_blob,
1423           {
1424                   { "name", "s", ARG_IN },
1425                   { "data", "ay", ARG_OUT },
1426                   END_ARGS
1427           }
1428         },
1429         { "RemoveBlob", WPAS_DBUS_NEW_IFACE_INTERFACE,
1430           (WPADBusMethodHandler) &wpas_dbus_handler_remove_blob,
1431           {
1432                   { "name", "s", ARG_IN },
1433                   END_ARGS
1434           }
1435         },
1436 #ifdef CONFIG_WPS
1437         { "Start", WPAS_DBUS_NEW_IFACE_WPS,
1438           (WPADBusMethodHandler) &wpas_dbus_handler_wps_start,
1439           {
1440                   { "args", "a{sv}", ARG_IN },
1441                   { "output", "a{sv}", ARG_OUT },
1442                   END_ARGS
1443           }
1444         },
1445 #endif /* CONFIG_WPS */
1446         { NULL, NULL, NULL, { END_ARGS } }
1447 };
1448
1449 static const struct wpas_dbus_property wpas_dbus_interface_properties[] = {
1450         { "Capabilities", WPAS_DBUS_NEW_IFACE_INTERFACE, "a{sv}",
1451           (WPADBusPropertyAccessor) wpas_dbus_getter_capabilities,
1452           NULL, R
1453         },
1454         { "State", WPAS_DBUS_NEW_IFACE_INTERFACE, "s",
1455           (WPADBusPropertyAccessor) wpas_dbus_getter_state,
1456           NULL, R
1457         },
1458         { "Scanning", WPAS_DBUS_NEW_IFACE_INTERFACE, "b",
1459           (WPADBusPropertyAccessor) wpas_dbus_getter_scanning,
1460           NULL, R
1461         },
1462         { "ApScan", WPAS_DBUS_NEW_IFACE_INTERFACE, "u",
1463           (WPADBusPropertyAccessor) wpas_dbus_getter_ap_scan,
1464           (WPADBusPropertyAccessor) wpas_dbus_setter_ap_scan,
1465           RW
1466         },
1467         { "Ifname", WPAS_DBUS_NEW_IFACE_INTERFACE, "s",
1468           (WPADBusPropertyAccessor) wpas_dbus_getter_ifname,
1469           NULL, R
1470         },
1471         { "Driver", WPAS_DBUS_NEW_IFACE_INTERFACE, "s",
1472           (WPADBusPropertyAccessor) wpas_dbus_getter_driver,
1473           NULL, R
1474         },
1475         { "BridgeIfname", WPAS_DBUS_NEW_IFACE_INTERFACE, "s",
1476           (WPADBusPropertyAccessor) wpas_dbus_getter_bridge_ifname,
1477           NULL, R
1478         },
1479         { "CurrentBSS", WPAS_DBUS_NEW_IFACE_INTERFACE, "o",
1480           (WPADBusPropertyAccessor) wpas_dbus_getter_current_bss,
1481           NULL, R
1482         },
1483         { "CurrentNetwork", WPAS_DBUS_NEW_IFACE_INTERFACE, "o",
1484           (WPADBusPropertyAccessor) wpas_dbus_getter_current_network,
1485           NULL, R
1486         },
1487         { "Blobs", WPAS_DBUS_NEW_IFACE_INTERFACE, "a{say}",
1488           (WPADBusPropertyAccessor) wpas_dbus_getter_blobs,
1489           NULL, R
1490         },
1491         { "BSSs", WPAS_DBUS_NEW_IFACE_INTERFACE, "ao",
1492           (WPADBusPropertyAccessor) wpas_dbus_getter_bsss,
1493           NULL, R
1494         },
1495         { "Networks", WPAS_DBUS_NEW_IFACE_INTERFACE, "ao",
1496           (WPADBusPropertyAccessor) wpas_dbus_getter_networks,
1497           NULL, R
1498         },
1499 #ifdef CONFIG_WPS
1500         { "ProcessCredentials", WPAS_DBUS_NEW_IFACE_WPS, "b",
1501           (WPADBusPropertyAccessor) wpas_dbus_getter_process_credentials,
1502           (WPADBusPropertyAccessor) wpas_dbus_setter_process_credentials,
1503           RW
1504         },
1505 #endif /* CONFIG_WPS */
1506         { NULL, NULL, NULL, NULL, NULL, 0 }
1507 };
1508
1509 static const struct wpas_dbus_signal wpas_dbus_interface_signals[] = {
1510         { "ScanDone", WPAS_DBUS_NEW_IFACE_INTERFACE,
1511           {
1512                   { "success", "b", ARG_OUT },
1513                   END_ARGS
1514           }
1515         },
1516         { "StateChanged", WPAS_DBUS_NEW_IFACE_INTERFACE,
1517           {
1518                   { "newState", "s", ARG_OUT },
1519                   { "oldState", "s", ARG_OUT },
1520                   END_ARGS
1521           }
1522         },
1523         { "BSSAdded", WPAS_DBUS_NEW_IFACE_INTERFACE,
1524           {
1525                   { "path", "o", ARG_OUT },
1526                   END_ARGS
1527           }
1528         },
1529         { "BSSRemoved", WPAS_DBUS_NEW_IFACE_INTERFACE,
1530           {
1531                   { "path", "o", ARG_OUT },
1532                   END_ARGS
1533           }
1534         },
1535         { "BlobAdded", WPAS_DBUS_NEW_IFACE_INTERFACE,
1536           {
1537                   { "name", "s", ARG_OUT },
1538                   END_ARGS
1539           }
1540         },
1541         { "BlobRemoved", WPAS_DBUS_NEW_IFACE_INTERFACE,
1542           {
1543                   { "name", "s", ARG_OUT },
1544                   END_ARGS
1545           }
1546         },
1547         { "NetworkAdded", WPAS_DBUS_NEW_IFACE_INTERFACE,
1548           {
1549                   { "path", "o", ARG_OUT },
1550                   END_ARGS
1551           }
1552         },
1553         { "NetworkRemoved", WPAS_DBUS_NEW_IFACE_INTERFACE,
1554           {
1555                   { "path", "o", ARG_OUT },
1556                   END_ARGS
1557           }
1558         },
1559         { "NetworkSelected", WPAS_DBUS_NEW_IFACE_INTERFACE,
1560           {
1561                   { "path", "o", ARG_OUT },
1562                   END_ARGS
1563           }
1564         },
1565         { "PropertiesChanged", WPAS_DBUS_NEW_IFACE_INTERFACE,
1566           {
1567                   { "properties", "a{sv}", ARG_OUT },
1568                   END_ARGS
1569           }
1570         },
1571 #ifdef CONFIG_WPS
1572         { "Event", WPAS_DBUS_NEW_IFACE_WPS,
1573           {
1574                   { "name", "s", ARG_OUT },
1575                   { "args", "a{sv}", ARG_OUT },
1576                   END_ARGS
1577           }
1578         },
1579         { "Credentials", WPAS_DBUS_NEW_IFACE_WPS,
1580           {
1581                   { "credentials", "a{sv}", ARG_OUT },
1582                   END_ARGS
1583           }
1584         },
1585         { "PropertiesChanged", WPAS_DBUS_NEW_IFACE_WPS,
1586           {
1587                   { "properties", "a{sv}", ARG_OUT },
1588                   END_ARGS
1589           }
1590         },
1591 #endif /* CONFIG_WPS */
1592         { NULL, NULL, { END_ARGS } }
1593 };
1594
1595
1596 static int wpas_dbus_register_interface(struct wpa_supplicant *wpa_s)
1597 {
1598
1599         struct wpa_dbus_object_desc *obj_desc = NULL;
1600         char *path;
1601         struct wpas_dbus_priv *ctrl_iface = wpa_s->global->dbus;
1602         int next;
1603
1604         /* Do nothing if the control interface is not turned on */
1605         if (ctrl_iface == NULL)
1606                 return 0;
1607
1608         /* Create and set the interface's object path */
1609         path = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
1610         if (path == NULL)
1611                 return -1;
1612         next = ctrl_iface->next_objid++;
1613         os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
1614                     WPAS_DBUS_NEW_PATH_INTERFACES "/%u",
1615                     next);
1616         if (wpas_dbus_set_path(wpa_s, path)) {
1617                 wpa_printf(MSG_DEBUG,
1618                            "Failed to set dbus path for interface %s",
1619                            wpa_s->ifname);
1620                 goto err;
1621         }
1622
1623         obj_desc = os_zalloc(sizeof(struct wpa_dbus_object_desc));
1624         if (!obj_desc) {
1625                 wpa_printf(MSG_ERROR, "Not enough memory "
1626                            "to create object description");
1627                 goto err;
1628         }
1629
1630         wpas_dbus_register(obj_desc, wpa_s, wpas_dbus_interface_methods,
1631                            wpas_dbus_interface_properties,
1632                            wpas_dbus_interface_signals);
1633
1634         wpa_printf(MSG_DEBUG, "dbus: Register interface object '%s'", path);
1635         if (wpa_dbus_register_object_per_iface(ctrl_iface, path, wpa_s->ifname,
1636                                                obj_desc))
1637                 goto err;
1638
1639         wpas_dbus_signal_interface_created(wpa_s);
1640
1641         os_free(path);
1642         return 0;
1643
1644 err:
1645         os_free(obj_desc);
1646         os_free(path);
1647         return -1;
1648 }
1649
1650
1651 static int wpas_dbus_unregister_interface(struct wpa_supplicant *wpa_s)
1652 {
1653         struct wpas_dbus_priv *ctrl_iface;
1654
1655         /* Do nothing if the control interface is not turned on */
1656         if (wpa_s == NULL || wpa_s->global == NULL)
1657                 return 0;
1658         ctrl_iface = wpa_s->global->dbus;
1659         if (ctrl_iface == NULL)
1660                 return 0;
1661
1662         wpa_printf(MSG_DEBUG, "dbus: Unregister interface object '%s'",
1663                    wpas_dbus_get_path(wpa_s));
1664         if (wpa_dbus_unregister_object_per_iface(ctrl_iface,
1665                                                  wpas_dbus_get_path(wpa_s)))
1666                 return -1;
1667
1668         wpas_dbus_signal_interface_removed(wpa_s);
1669
1670         os_free(wpa_s->dbus_new_path);
1671         wpa_s->dbus_new_path = NULL;
1672
1673         return 0;
1674 }
1675
1676
1677 static struct wpas_dbus_callbacks callbacks =
1678 {
1679         .signal_interface_created = wpas_dbus_signal_interface_created,
1680         .signal_interface_removed = wpas_dbus_signal_interface_removed,
1681
1682         .register_interface = wpas_dbus_register_interface,
1683         .unregister_interface = wpas_dbus_unregister_interface,
1684
1685         .signal_scan_done = wpas_dbus_signal_scan_done,
1686
1687         .signal_blob_added = wpas_dbus_signal_blob_added,
1688         .signal_blob_removed = wpas_dbus_signal_blob_removed,
1689
1690         .signal_network_selected = wpas_dbus_signal_network_selected,
1691
1692         .signal_state_changed = wpas_dbus_signal_state_changed,
1693         .register_network = wpas_dbus_register_network,
1694         .unregister_network = wpas_dbus_unregister_network,
1695
1696         .signal_network_enabled_changed =
1697         wpas_dbus_signal_network_enabled_changed,
1698
1699         .register_bss = wpas_dbus_register_bss,
1700         .unregister_bss = wpas_dbus_unregister_bss,
1701
1702         .signal_prop_changed = wpas_dbus_signal_prop_changed,
1703         .signal_debug_params_changed = wpas_dbus_signal_debug_params_changed,
1704
1705 #ifdef CONFIG_WPS
1706         .signal_wps_event_success = wpas_dbus_signal_wps_event_success,
1707         .signal_wps_event_fail = wpas_dbus_signal_wps_event_fail,
1708         .signal_wps_event_m2d = wpas_dbus_signal_wps_event_m2d,
1709         .signal_wps_credentials = wpas_dbus_signal_wps_cred,
1710 #endif /* CONFIG_WPS */
1711 };
1712
1713
1714 struct wpas_dbus_callbacks * wpas_dbus_get_callbacks(void)
1715 {
1716         return &callbacks;
1717 }
1718
1719
1720 /**
1721  * wpas_dbus_get_path - Get an interface's dbus path
1722  * @wpa_s: %wpa_supplicant interface structure
1723  * Returns: Interface's dbus object path, or %NULL on error
1724  */
1725 const char * wpas_dbus_get_path(struct wpa_supplicant *wpa_s)
1726 {
1727         return wpa_s->dbus_new_path;
1728 }