src/provider.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  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 <string.h>
  29 #include <stdlib.h>
  30 #include <gdbus.h>
  31 #include <gweb/gresolv.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection = NULL;
  36
  37 static GHashTable *provider_hash = NULL;
  38
  39 static GSList *driver_list = NULL;
  40
  41 struct connman_provider {
  42         int refcount;
  43         bool immutable;
  44         struct connman_service *vpn_service;
  45         int index;
  46         char *identifier;
  47         int family;
  48         struct connman_provider_driver *driver;
  49         void *driver_data;
  50 };
  51
  52 void __connman_provider_append_properties(struct connman_provider *provider,
  53                                                         DBusMessageIter *iter)
  54 {
  55         const char *host, *domain, *type;
  56
  57         if (!provider->driver || !provider->driver->get_property)
  58                 return;
  59
  60         host = provider->driver->get_property(provider, "Host");
  61         domain = provider->driver->get_property(provider, "Domain");
  62         type = provider->driver->get_property(provider, "Type");
  63
  64         if (host)
  65                 connman_dbus_dict_append_basic(iter, "Host",
  66                                         DBUS_TYPE_STRING, &host);
  67
  68         if (domain)
  69                 connman_dbus_dict_append_basic(iter, "Domain",
  70                                         DBUS_TYPE_STRING, &domain);
  71
  72         if (type)
  73                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
  74                                                  &type);
  75 }
  76
  77 struct connman_provider *
  78 connman_provider_ref_debug(struct connman_provider *provider,
  79                         const char *file, int line, const char *caller)
  80 {
  81         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
  82                 file, line, caller);
  83
  84         __sync_fetch_and_add(&provider->refcount, 1);
  85
  86         return provider;
  87 }
  88
  89 static void provider_remove(struct connman_provider *provider)
  90 {
  91         if (provider->driver) {
  92                 provider->driver->remove(provider);
  93                 provider->driver = NULL;
  94         }
  95 }
  96
  97 static void provider_destruct(struct connman_provider *provider)
  98 {
  99         DBG("provider %p", provider);
 100
 101         g_free(provider->identifier);
 102         g_free(provider);
 103 }
 104
 105 void connman_provider_unref_debug(struct connman_provider *provider,
 106                                 const char *file, int line, const char *caller)
 107 {
 108         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 109                 file, line, caller);
 110
 111         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
 112                 return;
 113
 114         provider_destruct(provider);
 115 }
 116
 117 static int provider_indicate_state(struct connman_provider *provider,
 118                                         enum connman_service_state state)
 119 {
 120         DBG("state %d", state);
 121
 122         __connman_service_ipconfig_indicate_state(provider->vpn_service, state,
 123                                         CONNMAN_IPCONFIG_TYPE_IPV4);
 124
 125         return __connman_service_ipconfig_indicate_state(provider->vpn_service,
 126                                         state, CONNMAN_IPCONFIG_TYPE_IPV6);
 127 }
 128
 129 int connman_provider_disconnect(struct connman_provider *provider)
 130 {
 131         int err;
 132
 133         DBG("provider %p", provider);
 134
 135         if (provider->driver && provider->driver->disconnect)
 136                 err = provider->driver->disconnect(provider);
 137         else
 138                 return -EOPNOTSUPP;
 139
 140         if (provider->vpn_service)
 141                 provider_indicate_state(provider,
 142                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 143
 144         if (err < 0)
 145                 return err;
 146
 147         if (provider->vpn_service)
 148                 provider_indicate_state(provider,
 149                                         CONNMAN_SERVICE_STATE_IDLE);
 150
 151         return 0;
 152 }
 153
 154 int connman_provider_remove(struct connman_provider *provider)
 155 {
 156         DBG("Removing VPN %s", provider->identifier);
 157
 158         provider_remove(provider);
 159
 160         connman_provider_set_state(provider, CONNMAN_PROVIDER_STATE_IDLE);
 161
 162         g_hash_table_remove(provider_hash, provider->identifier);
 163
 164         return 0;
 165 }
 166
 167 int __connman_provider_connect(struct connman_provider *provider,
 168                                         const char *dbus_sender)
 169 {
 170         int err;
 171
 172         DBG("provider %p", provider);
 173
 174         if (provider->driver && provider->driver->connect)
 175                 err = provider->driver->connect(provider, dbus_sender);
 176         else
 177                 return -EOPNOTSUPP;
 178
 179         switch (err) {
 180         case 0:
 181                 return 0;
 182
 183         case -EINPROGRESS:
 184                 provider_indicate_state(provider,
 185                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 186                 /* fall through */
 187         /*
 188          * Return EINPROGRESS also for when there is an existing pending call.
 189          * The state should not be indicated again but the real state is
 190          * still in progress for the provider.
 191          */
 192         case -EALREADY:
 193                 return -EINPROGRESS;
 194         }
 195
 196         return err;
 197 }
 198
 199 int __connman_provider_remove_by_path(const char *path)
 200 {
 201         struct connman_provider *provider;
 202         GHashTableIter iter;
 203         gpointer value, key;
 204
 205         DBG("path %s", path);
 206
 207         g_hash_table_iter_init(&iter, provider_hash);
 208         while (g_hash_table_iter_next(&iter, &key, &value)) {
 209                 const char *srv_path;
 210                 provider = value;
 211
 212                 if (!provider->vpn_service)
 213                         continue;
 214
 215                 srv_path = __connman_service_get_path(provider->vpn_service);
 216
 217                 if (g_strcmp0(srv_path, path) == 0) {
 218                         DBG("Removing VPN %s", provider->identifier);
 219
 220                         provider_remove(provider);
 221
 222                         connman_provider_set_state(provider,
 223                                                 CONNMAN_PROVIDER_STATE_IDLE);
 224
 225                         g_hash_table_remove(provider_hash,
 226                                                 provider->identifier);
 227                         return 0;
 228                 }
 229         }
 230
 231         return -ENXIO;
 232 }
 233
 234 static int set_connected(struct connman_provider *provider,
 235                                         bool connected)
 236 {
 237         struct connman_service *service = provider->vpn_service;
 238         struct connman_ipconfig *ipconfig;
 239
 240         if (!service)
 241                 return -ENODEV;
 242
 243         ipconfig = __connman_service_get_ipconfig(service, provider->family);
 244
 245         if (connected) {
 246                 if (!ipconfig) {
 247                         provider_indicate_state(provider,
 248                                                 CONNMAN_SERVICE_STATE_FAILURE);
 249                         return -EIO;
 250                 }
 251
 252                 __connman_ipconfig_address_add(ipconfig);
 253 #if defined TIZEN_EXT
 254                 __connman_ipconfig_gateway_add(ipconfig, service);
 255 #else
 256                 __connman_ipconfig_gateway_add(ipconfig);
 257 #endif
 258
 259                 provider_indicate_state(provider,
 260                                         CONNMAN_SERVICE_STATE_READY);
 261
 262                 if (provider->driver && provider->driver->set_routes)
 263                         provider->driver->set_routes(provider,
 264                                                 CONNMAN_PROVIDER_ROUTE_ALL);
 265
 266         } else {
 267                 if (ipconfig) {
 268                         provider_indicate_state(provider,
 269                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 270                         __connman_ipconfig_gateway_remove(ipconfig);
 271                 }
 272
 273                 provider_indicate_state(provider,
 274                                         CONNMAN_SERVICE_STATE_IDLE);
 275         }
 276
 277         return 0;
 278 }
 279
 280 int connman_provider_set_state(struct connman_provider *provider,
 281                                         enum connman_provider_state state)
 282 {
 283         if (!provider || !provider->vpn_service)
 284                 return -EINVAL;
 285
 286         switch (state) {
 287         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 288                 return -EINVAL;
 289         case CONNMAN_PROVIDER_STATE_IDLE:
 290                 return set_connected(provider, false);
 291         case CONNMAN_PROVIDER_STATE_CONNECT:
 292                 return provider_indicate_state(provider,
 293                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 294         case CONNMAN_PROVIDER_STATE_READY:
 295                 return set_connected(provider, true);
 296         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 297                 return provider_indicate_state(provider,
 298                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 299         case CONNMAN_PROVIDER_STATE_FAILURE:
 300                 return provider_indicate_state(provider,
 301                                         CONNMAN_SERVICE_STATE_FAILURE);
 302         }
 303
 304         return -EINVAL;
 305 }
 306
 307 int connman_provider_indicate_error(struct connman_provider *provider,
 308                                         enum connman_provider_error error)
 309 {
 310         enum connman_service_error service_error;
 311
 312         switch (error) {
 313         case CONNMAN_PROVIDER_ERROR_LOGIN_FAILED:
 314                 service_error = CONNMAN_SERVICE_ERROR_LOGIN_FAILED;
 315                 break;
 316         case CONNMAN_PROVIDER_ERROR_AUTH_FAILED:
 317                 service_error = CONNMAN_SERVICE_ERROR_AUTH_FAILED;
 318                 break;
 319         case CONNMAN_PROVIDER_ERROR_CONNECT_FAILED:
 320                 service_error = CONNMAN_SERVICE_ERROR_CONNECT_FAILED;
 321                 break;
 322         default:
 323                 service_error = CONNMAN_SERVICE_ERROR_UNKNOWN;
 324                 break;
 325         }
 326
 327         return __connman_service_indicate_error(provider->vpn_service,
 328                                                         service_error);
 329 }
 330
 331 int connman_provider_create_service(struct connman_provider *provider)
 332 {
 333         if (provider->vpn_service) {
 334                 bool connected;
 335
 336                 connected = __connman_service_is_connected_state(
 337                         provider->vpn_service, CONNMAN_IPCONFIG_TYPE_IPV4);
 338                 if (connected)
 339                         return -EALREADY;
 340
 341                 connected = __connman_service_is_connected_state(
 342                         provider->vpn_service, CONNMAN_IPCONFIG_TYPE_IPV6);
 343                 if (connected)
 344                         return -EALREADY;
 345
 346                 return 0;
 347         }
 348
 349         provider->vpn_service =
 350                 __connman_service_create_from_provider(provider);
 351
 352         if (!provider->vpn_service) {
 353                 connman_warn("service creation failed for provider %s",
 354                         provider->identifier);
 355
 356                 g_hash_table_remove(provider_hash, provider->identifier);
 357                 return -EOPNOTSUPP;
 358         }
 359
 360         return 0;
 361 }
 362
 363 bool __connman_provider_is_immutable(struct connman_provider *provider)
 364
 365 {
 366         if (provider)
 367                 return provider->immutable;
 368
 369         return false;
 370 }
 371
 372 int connman_provider_set_immutable(struct connman_provider *provider,
 373                                                 bool immutable)
 374 {
 375         if (!provider)
 376                 return -EINVAL;
 377
 378         provider->immutable = immutable;
 379
 380         return 0;
 381 }
 382
 383 static struct connman_provider *provider_lookup(const char *identifier)
 384 {
 385         return g_hash_table_lookup(provider_hash, identifier);
 386 }
 387
 388 static void connection_ready(DBusMessage *msg, int error_code, void *user_data)
 389 {
 390         DBusMessage *reply;
 391         const char *identifier = user_data;
 392
 393         DBG("msg %p error %d", msg, error_code);
 394
 395         if (error_code != 0) {
 396                 reply = __connman_error_failed(msg, -error_code);
 397                 if (!g_dbus_send_message(connection, reply))
 398                         DBG("reply %p send failed", reply);
 399         } else {
 400                 const char *path;
 401                 struct connman_provider *provider;
 402
 403                 provider = provider_lookup(identifier);
 404                 if (!provider) {
 405                         reply = __connman_error_failed(msg, EINVAL);
 406                         g_dbus_send_message(connection, reply);
 407                         return;
 408                 }
 409
 410                 path = __connman_service_get_path(provider->vpn_service);
 411
 412                 g_dbus_send_reply(connection, msg,
 413                                 DBUS_TYPE_OBJECT_PATH, &path,
 414                                 DBUS_TYPE_INVALID);
 415         }
 416 }
 417
 418 int __connman_provider_create_and_connect(DBusMessage *msg)
 419 {
 420         struct connman_provider_driver *driver;
 421
 422         if (!driver_list)
 423                 return -EINVAL;
 424
 425         driver = driver_list->data;
 426         if (!driver || !driver->create)
 427                 return -EINVAL;
 428
 429         DBG("msg %p", msg);
 430
 431         return driver->create(msg, connection_ready);
 432 }
 433
 434 const char *__connman_provider_get_ident(struct connman_provider *provider)
 435 {
 436         if (!provider)
 437                 return NULL;
 438
 439         return provider->identifier;
 440 }
 441
 442 int connman_provider_set_string(struct connman_provider *provider,
 443                                         const char *key, const char *value)
 444 {
 445         if (provider->driver && provider->driver->set_property)
 446                 return provider->driver->set_property(provider, key, value);
 447
 448         return 0;
 449 }
 450
 451 const char *connman_provider_get_string(struct connman_provider *provider,
 452                                                         const char *key)
 453 {
 454         if (provider->driver && provider->driver->get_property)
 455                 return provider->driver->get_property(provider, key);
 456
 457         return NULL;
 458 }
 459
 460 bool
 461 __connman_provider_check_routes(struct connman_provider *provider)
 462 {
 463         if (!provider)
 464                 return false;
 465
 466         if (provider->driver && provider->driver->check_routes)
 467                 return provider->driver->check_routes(provider);
 468
 469         return false;
 470 }
 471
 472 void *connman_provider_get_data(struct connman_provider *provider)
 473 {
 474         return provider->driver_data;
 475 }
 476
 477 void connman_provider_set_data(struct connman_provider *provider, void *data)
 478 {
 479         provider->driver_data = data;
 480 }
 481
 482 void connman_provider_set_index(struct connman_provider *provider, int index)
 483 {
 484         struct connman_service *service = provider->vpn_service;
 485         struct connman_ipconfig *ipconfig;
 486
 487         DBG("");
 488
 489         if (!service)
 490                 return;
 491
 492         ipconfig = __connman_service_get_ip4config(service);
 493
 494         if (!ipconfig) {
 495                 connman_service_create_ip4config(service, index);
 496
 497                 ipconfig = __connman_service_get_ip4config(service);
 498                 if (!ipconfig) {
 499                         DBG("Couldn't create ipconfig");
 500                         goto done;
 501                 }
 502         }
 503
 504         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_OFF);
 505         __connman_ipconfig_set_index(ipconfig, index);
 506
 507         ipconfig = __connman_service_get_ip6config(service);
 508
 509         if (!ipconfig) {
 510                 connman_service_create_ip6config(service, index);
 511
 512                 ipconfig = __connman_service_get_ip6config(service);
 513                 if (!ipconfig) {
 514                         DBG("Couldn't create ipconfig for IPv6");
 515                         goto done;
 516                 }
 517         }
 518
 519         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_OFF);
 520         __connman_ipconfig_set_index(ipconfig, index);
 521
 522 done:
 523         provider->index = index;
 524 }
 525
 526 int connman_provider_get_index(struct connman_provider *provider)
 527 {
 528         return provider->index;
 529 }
 530
 531 int connman_provider_set_ipaddress(struct connman_provider *provider,
 532                                         struct connman_ipaddress *ipaddress)
 533 {
 534         struct connman_ipconfig *ipconfig = NULL;
 535
 536         ipconfig = __connman_service_get_ipconfig(provider->vpn_service,
 537                                                         ipaddress->family);
 538         if (!ipconfig)
 539                 return -EINVAL;
 540
 541         provider->family = ipaddress->family;
 542
 543         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 544
 545         __connman_ipconfig_set_local(ipconfig, ipaddress->local);
 546         __connman_ipconfig_set_peer(ipconfig, ipaddress->peer);
 547         __connman_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
 548         __connman_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
 549         __connman_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
 550
 551         return 0;
 552 }
 553
 554 int connman_provider_set_pac(struct connman_provider *provider, const char *pac)
 555 {
 556         DBG("provider %p pac %s", provider, pac);
 557
 558         __connman_service_set_pac(provider->vpn_service, pac);
 559
 560         return 0;
 561 }
 562
 563
 564 int connman_provider_set_domain(struct connman_provider *provider,
 565                                         const char *domain)
 566 {
 567         DBG("provider %p domain %s", provider, domain);
 568
 569         __connman_service_set_domainname(provider->vpn_service, domain);
 570
 571         return 0;
 572 }
 573
 574 int connman_provider_set_nameservers(struct connman_provider *provider,
 575                                         char * const *nameservers)
 576 {
 577         int i;
 578
 579         DBG("provider %p nameservers %p", provider, nameservers);
 580
 581         __connman_service_nameserver_clear(provider->vpn_service);
 582
 583         if (!nameservers)
 584                 return 0;
 585
 586         for (i = 0; nameservers[i]; i++)
 587 #if defined TIZEN_EXT
 588                 __connman_service_nameserver_append(provider->vpn_service,
 589                                                 nameservers[i], false,
 590                                                 CONNMAN_IPCONFIG_TYPE_ALL);
 591 #else
 592                 __connman_service_nameserver_append(provider->vpn_service,
 593                                                 nameservers[i], false);
 594 #endif
 595
 596         return 0;
 597 }
 598
 599 void connman_provider_set_autoconnect(struct connman_provider *provider,
 600                                                                 bool flag)
 601 {
 602         if (!provider || !provider->vpn_service)
 603                 return;
 604
 605         /* Save VPN service if autoconnect value changes */
 606         if (connman_service_set_autoconnect(provider->vpn_service, flag))
 607                 __connman_service_save(provider->vpn_service);
 608 }
 609
 610 static void unregister_provider(gpointer data)
 611 {
 612         struct connman_provider *provider = data;
 613
 614         DBG("provider %p service %p", provider, provider->vpn_service);
 615
 616         if (provider->vpn_service) {
 617                 connman_service_unref(provider->vpn_service);
 618                 provider->vpn_service = NULL;
 619         }
 620
 621         connman_provider_unref(provider);
 622 }
 623
 624 static gint compare_priority(gconstpointer a, gconstpointer b)
 625 {
 626         return 0;
 627 }
 628
 629 int connman_provider_driver_register(struct connman_provider_driver *driver)
 630 {
 631         DBG("driver %p name %s", driver, driver->name);
 632
 633         driver_list = g_slist_insert_sorted(driver_list, driver,
 634                                                         compare_priority);
 635         return 0;
 636 }
 637
 638 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 639 {
 640         DBG("driver %p name %s", driver, driver->name);
 641
 642         driver_list = g_slist_remove(driver_list, driver);
 643 }
 644
 645 void connman_provider_set_driver(struct connman_provider *provider,
 646                                 struct connman_provider_driver *driver)
 647 {
 648         provider->driver = driver;
 649 }
 650
 651 static void provider_disconnect_all(gpointer key, gpointer value,
 652                                                 gpointer user_data)
 653 {
 654         struct connman_provider *provider = value;
 655
 656         connman_provider_disconnect(provider);
 657 }
 658
 659 static void provider_offline_mode(bool enabled)
 660 {
 661         DBG("enabled %d", enabled);
 662
 663         if (enabled)
 664                 g_hash_table_foreach(provider_hash, provider_disconnect_all,
 665                                                                         NULL);
 666
 667 }
 668
 669 static void provider_initialize(struct connman_provider *provider)
 670 {
 671         DBG("provider %p", provider);
 672
 673         provider->index = 0;
 674         provider->identifier = NULL;
 675 }
 676
 677 static struct connman_provider *provider_new(void)
 678 {
 679         struct connman_provider *provider;
 680
 681         provider = g_try_new0(struct connman_provider, 1);
 682         if (!provider)
 683                 return NULL;
 684
 685         provider->refcount = 1;
 686
 687         DBG("provider %p", provider);
 688         provider_initialize(provider);
 689
 690         return provider;
 691 }
 692
 693 struct connman_provider *connman_provider_get(const char *identifier)
 694 {
 695         struct connman_provider *provider;
 696
 697         provider = g_hash_table_lookup(provider_hash, identifier);
 698         if (provider)
 699                 return provider;
 700
 701         provider = provider_new();
 702         if (!provider)
 703                 return NULL;
 704
 705         DBG("provider %p", provider);
 706
 707         provider->identifier = g_strdup(identifier);
 708
 709         g_hash_table_insert(provider_hash, provider->identifier, provider);
 710
 711         return provider;
 712 }
 713
 714 void connman_provider_put(struct connman_provider *provider)
 715 {
 716         g_hash_table_remove(provider_hash, provider->identifier);
 717 }
 718
 719 static struct connman_provider *provider_get(int index)
 720 {
 721         GHashTableIter iter;
 722         gpointer value, key;
 723
 724         g_hash_table_iter_init(&iter, provider_hash);
 725
 726         while (g_hash_table_iter_next(&iter, &key, &value)) {
 727                 struct connman_provider *provider = value;
 728
 729                 if (provider->index == index)
 730                         return provider;
 731         }
 732
 733         return NULL;
 734 }
 735
 736 static void provider_service_changed(struct connman_service *service,
 737                                 enum connman_service_state state)
 738 {
 739         struct connman_provider *provider;
 740         int vpn_index, service_index;
 741
 742         if (!service)
 743                 return;
 744
 745         switch (state) {
 746         case CONNMAN_SERVICE_STATE_UNKNOWN:
 747         case CONNMAN_SERVICE_STATE_IDLE:
 748         case CONNMAN_SERVICE_STATE_ASSOCIATION:
 749         case CONNMAN_SERVICE_STATE_CONFIGURATION:
 750         case CONNMAN_SERVICE_STATE_READY:
 751         case CONNMAN_SERVICE_STATE_ONLINE:
 752                 return;
 753         case CONNMAN_SERVICE_STATE_DISCONNECT:
 754         case CONNMAN_SERVICE_STATE_FAILURE:
 755                 break;
 756         }
 757
 758         service_index = __connman_service_get_index(service);
 759
 760         vpn_index = __connman_connection_get_vpn_index(service_index);
 761
 762         DBG("service %p %s state %d index %d/%d", service,
 763                 connman_service_get_identifier(service),
 764                 state, service_index, vpn_index);
 765
 766         if (vpn_index < 0)
 767                 return;
 768
 769         provider = provider_get(vpn_index);
 770         if (!provider)
 771                 return;
 772
 773         DBG("disconnect %p index %d", provider, vpn_index);
 774
 775         connman_provider_disconnect(provider);
 776 }
 777
 778 static const struct connman_notifier provider_notifier = {
 779         .name                   = "provider",
 780         .offline_mode           = provider_offline_mode,
 781         .service_state_changed  = provider_service_changed,
 782 };
 783
 784 int __connman_provider_init(void)
 785 {
 786         int err;
 787
 788         DBG("");
 789
 790         connection = connman_dbus_get_connection();
 791
 792         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 793                                                 NULL, unregister_provider);
 794
 795         err = connman_notifier_register(&provider_notifier);
 796         if (err < 0) {
 797                 g_hash_table_destroy(provider_hash);
 798                 dbus_connection_unref(connection);
 799         }
 800
 801         return err;
 802 }
 803
 804 void __connman_provider_cleanup(void)
 805 {
 806         DBG("");
 807
 808         connman_notifier_unregister(&provider_notifier);
 809
 810         g_hash_table_destroy(provider_hash);
 811         provider_hash = NULL;
 812
 813         dbus_connection_unref(connection);
 814 }