src/main.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  Intel Corporation. All rights reserved.
   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  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <signal.h>
  32 #include <sys/signalfd.h>
  33 #include <getopt.h>
  34 #include <sys/stat.h>
  35 #include <net/if.h>
  36 #include <netdb.h>
  37
  38 #include <gdbus.h>
  39
  40 #include "connman.h"
  41
  42 #define DEFAULT_INPUT_REQUEST_TIMEOUT 120 * 1000
  43 #define DEFAULT_BROWSER_LAUNCH_TIMEOUT 300 * 1000
  44
  45 #define CONFIGMAINFILE CONFIGDIR "/main.conf"
  46
  47 static char *default_auto_connect[] = {
  48         "wifi",
  49         "ethernet",
  50         "cellular",
  51         NULL
  52 };
  53
  54 static char *default_blacklist[] = {
  55         "vmnet",
  56         "vboxnet",
  57         "virbr",
  58         NULL
  59 };
  60
  61 static struct {
  62         connman_bool_t bg_scan;
  63         char **pref_timeservers;
  64         unsigned int *auto_connect;
  65         unsigned int *preferred_techs;
  66         char **fallback_nameservers;
  67         unsigned int timeout_inputreq;
  68         unsigned int timeout_browserlaunch;
  69         char **blacklisted_interfaces;
  70         connman_bool_t allow_hostname_updates;
  71         connman_bool_t single_tech;
  72 } connman_settings  = {
  73         .bg_scan = TRUE,
  74         .pref_timeservers = NULL,
  75         .auto_connect = NULL,
  76         .preferred_techs = NULL,
  77         .fallback_nameservers = NULL,
  78         .timeout_inputreq = DEFAULT_INPUT_REQUEST_TIMEOUT,
  79         .timeout_browserlaunch = DEFAULT_BROWSER_LAUNCH_TIMEOUT,
  80         .blacklisted_interfaces = NULL,
  81         .allow_hostname_updates = TRUE,
  82         .single_tech = FALSE,
  83 };
  84
  85 #define CONF_BG_SCAN                    "BackgroundScanning"
  86 #define CONF_PREF_TIMESERVERS           "FallbackTimeservers"
  87 #define CONF_AUTO_CONNECT               "DefaultAutoConnectTechnologies"
  88 #define CONF_PREFERRED_TECHS            "PreferredTechnologies"
  89 #define CONF_FALLBACK_NAMESERVERS       "FallbackNameservers"
  90 #define CONF_TIMEOUT_INPUTREQ           "InputRequestTimeout"
  91 #define CONF_TIMEOUT_BROWSERLAUNCH      "BrowserLaunchTimeout"
  92 #define CONF_BLACKLISTED_INTERFACES     "NetworkInterfaceBlacklist"
  93 #define CONF_ALLOW_HOSTNAME_UPDATES     "AllowHostnameUpdates"
  94 #define CONF_SINGLE_TECH                "SingleConnectedTechnology"
  95
  96 static const char *supported_options[] = {
  97         CONF_BG_SCAN,
  98         CONF_PREF_TIMESERVERS,
  99         CONF_AUTO_CONNECT,
 100         CONF_PREFERRED_TECHS,
 101         CONF_FALLBACK_NAMESERVERS,
 102         CONF_TIMEOUT_INPUTREQ,
 103         CONF_TIMEOUT_BROWSERLAUNCH,
 104         CONF_BLACKLISTED_INTERFACES,
 105         CONF_ALLOW_HOSTNAME_UPDATES,
 106         CONF_SINGLE_TECH,
 107         NULL
 108 };
 109
 110 static GKeyFile *load_config(const char *file)
 111 {
 112         GError *err = NULL;
 113         GKeyFile *keyfile;
 114
 115         keyfile = g_key_file_new();
 116
 117         g_key_file_set_list_separator(keyfile, ',');
 118
 119         if (!g_key_file_load_from_file(keyfile, file, 0, &err)) {
 120                 if (err->code != G_FILE_ERROR_NOENT) {
 121                         connman_error("Parsing %s failed: %s", file,
 122                                                                 err->message);
 123                 }
 124
 125                 g_error_free(err);
 126                 g_key_file_free(keyfile);
 127                 return NULL;
 128         }
 129
 130         return keyfile;
 131 }
 132
 133 static uint *parse_service_types(char **str_list, gsize len)
 134 {
 135         unsigned int *type_list;
 136         int i, j;
 137         enum connman_service_type type;
 138
 139         type_list = g_try_new0(unsigned int, len + 1);
 140         if (type_list == NULL)
 141                 return NULL;
 142
 143         i = 0;
 144         j = 0;
 145         while (str_list[i] != NULL)
 146         {
 147                 type = __connman_service_string2type(str_list[i]);
 148
 149                 if (type != CONNMAN_SERVICE_TYPE_UNKNOWN) {
 150                         type_list[j] = type;
 151                         j += 1;
 152                 }
 153                 i += 1;
 154         }
 155
 156         return type_list;
 157 }
 158
 159 static char **parse_fallback_nameservers(char **nameservers, gsize len)
 160 {
 161         char **servers;
 162         int i, j;
 163
 164         servers = g_try_new0(char *, len + 1);
 165         if (servers == NULL)
 166                 return NULL;
 167
 168         i = 0;
 169         j = 0;
 170         while (nameservers[i] != NULL) {
 171                 if (connman_inet_check_ipaddress(nameservers[i]) > 0) {
 172                         servers[j] = g_strdup(nameservers[i]);
 173                         j += 1;
 174                 }
 175                 i += 1;
 176         }
 177
 178         return servers;
 179 }
 180
 181 static void check_config(GKeyFile *config)
 182 {
 183         char **keys;
 184         int j;
 185
 186         if (config == NULL)
 187                 return;
 188
 189         keys = g_key_file_get_groups(config, NULL);
 190
 191         for (j = 0; keys != NULL && keys[j] != NULL; j++) {
 192                 if (g_strcmp0(keys[j], "General") != 0)
 193                         connman_warn("Unknown group %s in main.conf", keys[j]);
 194         }
 195
 196         g_strfreev(keys);
 197
 198         keys = g_key_file_get_keys(config, "General", NULL, NULL);
 199
 200         for (j = 0; keys != NULL && keys[j] != NULL; j++) {
 201                 connman_bool_t found;
 202                 int i;
 203
 204                 found = FALSE;
 205                 for (i = 0; supported_options[i] != NULL; i++) {
 206                         if (g_strcmp0(keys[j], supported_options[i]) == 0) {
 207                                 found = TRUE;
 208                                 break;
 209                         }
 210                 }
 211                 if (found == FALSE && supported_options[i] == NULL)
 212                         connman_warn("Unknown key %s in main.conf", keys[j]);
 213         }
 214
 215         g_strfreev(keys);
 216 }
 217
 218 static void parse_config(GKeyFile *config)
 219 {
 220         GError *error = NULL;
 221         gboolean boolean;
 222         char **timeservers;
 223         char **interfaces;
 224         char **str_list;
 225         gsize len;
 226         int timeout;
 227
 228         if (config == NULL) {
 229                 connman_settings.auto_connect =
 230                         parse_service_types(default_auto_connect, 3);
 231                 connman_settings.blacklisted_interfaces =
 232                         g_strdupv(default_blacklist);
 233                 return;
 234         }
 235
 236         DBG("parsing main.conf");
 237
 238         check_config(config);
 239
 240         boolean = g_key_file_get_boolean(config, "General",
 241                                                 CONF_BG_SCAN, &error);
 242         if (error == NULL)
 243                 connman_settings.bg_scan = boolean;
 244
 245         g_clear_error(&error);
 246
 247         timeservers = g_key_file_get_string_list(config, "General",
 248                                                 CONF_PREF_TIMESERVERS, NULL, &error);
 249         if (error == NULL)
 250                 connman_settings.pref_timeservers = timeservers;
 251
 252         g_clear_error(&error);
 253
 254         str_list = g_key_file_get_string_list(config, "General",
 255                         CONF_AUTO_CONNECT, &len, &error);
 256
 257         if (error == NULL)
 258                 connman_settings.auto_connect =
 259                         parse_service_types(str_list, len);
 260         else
 261                 connman_settings.auto_connect =
 262                         parse_service_types(default_auto_connect, 3);
 263
 264         g_strfreev(str_list);
 265
 266         g_clear_error(&error);
 267
 268         str_list = g_key_file_get_string_list(config, "General",
 269                         CONF_PREFERRED_TECHS, &len, &error);
 270
 271         if (error == NULL)
 272                 connman_settings.preferred_techs =
 273                         parse_service_types(str_list, len);
 274
 275         g_strfreev(str_list);
 276
 277         g_clear_error(&error);
 278
 279         str_list = g_key_file_get_string_list(config, "General",
 280                         CONF_FALLBACK_NAMESERVERS, &len, &error);
 281
 282         if (error == NULL)
 283                 connman_settings.fallback_nameservers =
 284                         parse_fallback_nameservers(str_list, len);
 285
 286         g_strfreev(str_list);
 287
 288         g_clear_error(&error);
 289
 290         timeout = g_key_file_get_integer(config, "General",
 291                         CONF_TIMEOUT_INPUTREQ, &error);
 292         if (error == NULL && timeout >= 0)
 293                 connman_settings.timeout_inputreq = timeout * 1000;
 294
 295         g_clear_error(&error);
 296
 297         timeout = g_key_file_get_integer(config, "General",
 298                         CONF_TIMEOUT_BROWSERLAUNCH, &error);
 299         if (error == NULL && timeout >= 0)
 300                 connman_settings.timeout_browserlaunch = timeout * 1000;
 301
 302         g_clear_error(&error);
 303
 304         interfaces = g_key_file_get_string_list(config, "General",
 305                         CONF_BLACKLISTED_INTERFACES, &len, &error);
 306
 307         if (error == NULL)
 308                 connman_settings.blacklisted_interfaces = interfaces;
 309         else
 310                 connman_settings.blacklisted_interfaces =
 311                         g_strdupv(default_blacklist);
 312
 313         g_clear_error(&error);
 314
 315         boolean = g_key_file_get_boolean(config, "General",
 316                                         CONF_ALLOW_HOSTNAME_UPDATES,
 317                                         &error);
 318         if (error == NULL)
 319                 connman_settings.allow_hostname_updates = boolean;
 320
 321         g_clear_error(&error);
 322
 323         boolean = g_key_file_get_boolean(config, "General",
 324                         CONF_SINGLE_TECH, &error);
 325         if (error == NULL)
 326                 connman_settings.single_tech = boolean;
 327
 328         g_clear_error(&error);
 329 }
 330
 331 static int config_init(const char *file)
 332 {
 333         GKeyFile *config;
 334
 335         config = load_config(file);
 336         parse_config(config);
 337         if (config != NULL)
 338                 g_key_file_free(config);
 339
 340         return 0;
 341 }
 342
 343 static GMainLoop *main_loop = NULL;
 344
 345 static unsigned int __terminated = 0;
 346
 347 static gboolean signal_handler(GIOChannel *channel, GIOCondition cond,
 348                                                         gpointer user_data)
 349 {
 350         struct signalfd_siginfo si;
 351         ssize_t result;
 352         int fd;
 353
 354         if (cond & (G_IO_NVAL | G_IO_ERR | G_IO_HUP))
 355                 return FALSE;
 356
 357         fd = g_io_channel_unix_get_fd(channel);
 358
 359         result = read(fd, &si, sizeof(si));
 360         if (result != sizeof(si))
 361                 return FALSE;
 362
 363         switch (si.ssi_signo) {
 364         case SIGINT:
 365         case SIGTERM:
 366                 if (__terminated == 0) {
 367                         connman_info("Terminating");
 368                         g_main_loop_quit(main_loop);
 369                 }
 370
 371                 __terminated = 1;
 372                 break;
 373         }
 374
 375         return TRUE;
 376 }
 377
 378 static guint setup_signalfd(void)
 379 {
 380         GIOChannel *channel;
 381         guint source;
 382         sigset_t mask;
 383         int fd;
 384
 385         sigemptyset(&mask);
 386         sigaddset(&mask, SIGINT);
 387         sigaddset(&mask, SIGTERM);
 388
 389         if (sigprocmask(SIG_BLOCK, &mask, NULL) < 0) {
 390                 perror("Failed to set signal mask");
 391                 return 0;
 392         }
 393
 394         fd = signalfd(-1, &mask, 0);
 395         if (fd < 0) {
 396                 perror("Failed to create signal descriptor");
 397                 return 0;
 398         }
 399
 400         channel = g_io_channel_unix_new(fd);
 401
 402         g_io_channel_set_close_on_unref(channel, TRUE);
 403         g_io_channel_set_encoding(channel, NULL, NULL);
 404         g_io_channel_set_buffered(channel, FALSE);
 405
 406         source = g_io_add_watch(channel,
 407                                 G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
 408                                 signal_handler, NULL);
 409
 410         g_io_channel_unref(channel);
 411
 412         return source;
 413 }
 414
 415 static void disconnect_callback(DBusConnection *conn, void *user_data)
 416 {
 417         connman_error("D-Bus disconnect");
 418
 419         g_main_loop_quit(main_loop);
 420 }
 421
 422 static gchar *option_config = NULL;
 423 static gchar *option_debug = NULL;
 424 static gchar *option_device = NULL;
 425 static gchar *option_plugin = NULL;
 426 static gchar *option_nodevice = NULL;
 427 static gchar *option_noplugin = NULL;
 428 static gchar *option_wifi = NULL;
 429 static gboolean option_detach = TRUE;
 430 static gboolean option_dnsproxy = TRUE;
 431 static gboolean option_backtrace = TRUE;
 432 static gboolean option_version = FALSE;
 433
 434 static gboolean parse_debug(const char *key, const char *value,
 435                                         gpointer user_data, GError **error)
 436 {
 437         if (value)
 438                 option_debug = g_strdup(value);
 439         else
 440                 option_debug = g_strdup("*");
 441
 442         return TRUE;
 443 }
 444
 445 static GOptionEntry options[] = {
 446         { "config", 'c', 0, G_OPTION_ARG_STRING, &option_config,
 447                                 "Load the specified configuration file "
 448                                 "instead of " CONFIGMAINFILE, "FILE" },
 449         { "debug", 'd', G_OPTION_FLAG_OPTIONAL_ARG,
 450                                 G_OPTION_ARG_CALLBACK, parse_debug,
 451                                 "Specify debug options to enable", "DEBUG" },
 452         { "device", 'i', 0, G_OPTION_ARG_STRING, &option_device,
 453                         "Specify networking device or interface", "DEV" },
 454         { "nodevice", 'I', 0, G_OPTION_ARG_STRING, &option_nodevice,
 455                         "Specify networking interface to ignore", "DEV" },
 456         { "plugin", 'p', 0, G_OPTION_ARG_STRING, &option_plugin,
 457                                 "Specify plugins to load", "NAME,..." },
 458         { "noplugin", 'P', 0, G_OPTION_ARG_STRING, &option_noplugin,
 459                                 "Specify plugins not to load", "NAME,..." },
 460         { "wifi", 'W', 0, G_OPTION_ARG_STRING, &option_wifi,
 461                                 "Specify driver for WiFi/Supplicant", "NAME" },
 462         { "nodaemon", 'n', G_OPTION_FLAG_REVERSE,
 463                                 G_OPTION_ARG_NONE, &option_detach,
 464                                 "Don't fork daemon to background" },
 465         { "nodnsproxy", 'r', G_OPTION_FLAG_REVERSE,
 466                                 G_OPTION_ARG_NONE, &option_dnsproxy,
 467                                 "Don't enable DNS Proxy" },
 468         { "nobacktrace", 0, G_OPTION_FLAG_REVERSE,
 469                                 G_OPTION_ARG_NONE, &option_backtrace,
 470                                 "Don't print out backtrace information" },
 471         { "version", 'v', 0, G_OPTION_ARG_NONE, &option_version,
 472                                 "Show version information and exit" },
 473         { NULL },
 474 };
 475
 476 const char *connman_option_get_string(const char *key)
 477 {
 478         if (g_strcmp0(key, "wifi") == 0) {
 479                 if (option_wifi == NULL)
 480                         return "nl80211,wext";
 481                 else
 482                         return option_wifi;
 483         }
 484
 485         return NULL;
 486 }
 487
 488 connman_bool_t connman_setting_get_bool(const char *key)
 489 {
 490         if (g_str_equal(key, CONF_BG_SCAN) == TRUE)
 491                 return connman_settings.bg_scan;
 492
 493         if (g_str_equal(key, CONF_ALLOW_HOSTNAME_UPDATES) == TRUE)
 494                 return connman_settings.allow_hostname_updates;
 495
 496         if (g_str_equal(key, CONF_SINGLE_TECH) == TRUE)
 497                 return connman_settings.single_tech;
 498
 499         return FALSE;
 500 }
 501
 502 char **connman_setting_get_string_list(const char *key)
 503 {
 504         if (g_str_equal(key, CONF_PREF_TIMESERVERS) == TRUE)
 505                 return connman_settings.pref_timeservers;
 506
 507         if (g_str_equal(key, CONF_FALLBACK_NAMESERVERS) == TRUE)
 508                 return connman_settings.fallback_nameservers;
 509
 510         if (g_str_equal(key, CONF_BLACKLISTED_INTERFACES) == TRUE)
 511                 return connman_settings.blacklisted_interfaces;
 512
 513         return NULL;
 514 }
 515
 516 unsigned int *connman_setting_get_uint_list(const char *key)
 517 {
 518         if (g_str_equal(key, CONF_AUTO_CONNECT) == TRUE)
 519                 return connman_settings.auto_connect;
 520
 521         if (g_str_equal(key, CONF_PREFERRED_TECHS) == TRUE)
 522                 return connman_settings.preferred_techs;
 523
 524         return NULL;
 525 }
 526
 527 unsigned int connman_timeout_input_request(void) {
 528         return connman_settings.timeout_inputreq;
 529 }
 530
 531 unsigned int connman_timeout_browser_launch(void) {
 532         return connman_settings.timeout_browserlaunch;
 533 }
 534
 535 int main(int argc, char *argv[])
 536 {
 537         GOptionContext *context;
 538         GError *error = NULL;
 539         DBusConnection *conn;
 540         DBusError err;
 541         guint signal;
 542
 543 #ifdef NEED_THREADS
 544         if (g_thread_supported() == FALSE)
 545                 g_thread_init(NULL);
 546 #endif
 547
 548         context = g_option_context_new(NULL);
 549         g_option_context_add_main_entries(context, options, NULL);
 550
 551         if (g_option_context_parse(context, &argc, &argv, &error) == FALSE) {
 552                 if (error != NULL) {
 553                         g_printerr("%s\n", error->message);
 554                         g_error_free(error);
 555                 } else
 556                         g_printerr("An unknown error occurred\n");
 557                 exit(1);
 558         }
 559
 560         g_option_context_free(context);
 561
 562         if (option_version == TRUE) {
 563                 printf("%s\n", VERSION);
 564                 exit(0);
 565         }
 566
 567         if (option_detach == TRUE) {
 568                 if (daemon(0, 0)) {
 569                         perror("Can't start daemon");
 570                         exit(1);
 571                 }
 572         }
 573
 574         if (mkdir(STATEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 575                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 576                 if (errno != EEXIST)
 577                         perror("Failed to create state directory");
 578         }
 579
 580         if (mkdir(STORAGEDIR, S_IRUSR | S_IWUSR | S_IXUSR |
 581                                 S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) < 0) {
 582                 if (errno != EEXIST)
 583                         perror("Failed to create storage directory");
 584         }
 585
 586         umask(0077);
 587
 588         main_loop = g_main_loop_new(NULL, FALSE);
 589
 590 #ifdef NEED_THREADS
 591         if (dbus_threads_init_default() == FALSE) {
 592                 fprintf(stderr, "Can't init usage of threads\n");
 593                 exit(1);
 594         }
 595 #endif
 596
 597         signal = setup_signalfd();
 598
 599         dbus_error_init(&err);
 600
 601         conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, CONNMAN_SERVICE, &err);
 602         if (conn == NULL) {
 603                 if (dbus_error_is_set(&err) == TRUE) {
 604                         fprintf(stderr, "%s\n", err.message);
 605                         dbus_error_free(&err);
 606                 } else
 607                         fprintf(stderr, "Can't register with system bus\n");
 608                 exit(1);
 609         }
 610
 611         g_dbus_set_disconnect_function(conn, disconnect_callback, NULL, NULL);
 612
 613         __connman_log_init(argv[0], option_debug, option_detach,
 614                         option_backtrace, "Connection Manager", VERSION);
 615
 616         __connman_dbus_init(conn);
 617
 618         if (option_config == NULL)
 619                 config_init(CONFIGMAINFILE);
 620         else
 621                 config_init(option_config);
 622
 623         __connman_storage_migrate();
 624         __connman_inotify_init();
 625         __connman_technology_init();
 626         __connman_notifier_init();
 627         __connman_agent_init();
 628         __connman_service_init();
 629         __connman_provider_init();
 630         __connman_network_init();
 631         __connman_device_init(option_device, option_nodevice);
 632
 633         __connman_ippool_init();
 634         __connman_iptables_init();
 635         __connman_nat_init();
 636         __connman_tethering_init();
 637         __connman_counter_init();
 638         __connman_manager_init();
 639         __connman_config_init();
 640         __connman_stats_init();
 641         __connman_clock_init();
 642
 643         __connman_resolver_init(option_dnsproxy);
 644         __connman_ipconfig_init();
 645         __connman_rtnl_init();
 646         __connman_task_init();
 647         __connman_proxy_init();
 648         __connman_detect_init();
 649         __connman_session_init();
 650         __connman_timeserver_init();
 651         __connman_connection_init();
 652
 653         __connman_plugin_init(option_plugin, option_noplugin);
 654
 655         __connman_rtnl_start();
 656         __connman_dhcp_init();
 657         __connman_dhcpv6_init();
 658         __connman_wpad_init();
 659         __connman_wispr_init();
 660         __connman_rfkill_init();
 661
 662         g_free(option_config);
 663         g_free(option_device);
 664         g_free(option_plugin);
 665         g_free(option_nodevice);
 666         g_free(option_noplugin);
 667
 668         g_main_loop_run(main_loop);
 669
 670         g_source_remove(signal);
 671
 672         __connman_rfkill_cleanup();
 673         __connman_wispr_cleanup();
 674         __connman_wpad_cleanup();
 675         __connman_dhcpv6_cleanup();
 676         __connman_dhcp_cleanup();
 677         __connman_plugin_cleanup();
 678         __connman_provider_cleanup();
 679         __connman_connection_cleanup();
 680         __connman_timeserver_cleanup();
 681         __connman_session_cleanup();
 682         __connman_detect_cleanup();
 683         __connman_proxy_cleanup();
 684         __connman_task_cleanup();
 685         __connman_rtnl_cleanup();
 686         __connman_resolver_cleanup();
 687
 688         __connman_clock_cleanup();
 689         __connman_stats_cleanup();
 690         __connman_config_cleanup();
 691         __connman_manager_cleanup();
 692         __connman_counter_cleanup();
 693         __connman_tethering_cleanup();
 694         __connman_nat_cleanup();
 695         __connman_iptables_cleanup();
 696         __connman_ippool_cleanup();
 697         __connman_device_cleanup();
 698         __connman_network_cleanup();
 699         __connman_service_cleanup();
 700         __connman_agent_cleanup();
 701         __connman_ipconfig_cleanup();
 702         __connman_notifier_cleanup();
 703         __connman_technology_cleanup();
 704         __connman_inotify_cleanup();
 705
 706         __connman_dbus_cleanup();
 707
 708         __connman_log_cleanup(option_backtrace);
 709
 710         dbus_connection_unref(conn);
 711
 712         g_main_loop_unref(main_loop);
 713
 714         if (connman_settings.pref_timeservers != NULL)
 715                 g_strfreev(connman_settings.pref_timeservers);
 716
 717         g_free(connman_settings.auto_connect);
 718         g_free(connman_settings.preferred_techs);
 719         g_strfreev(connman_settings.fallback_nameservers);
 720         g_strfreev(connman_settings.blacklisted_interfaces);
 721
 722         g_free(option_debug);
 723
 724         return 0;
 725 }