src/provider.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 <stdio.h>
  27 #include <string.h>
  28 #include <gdbus.h>
  29
  30 #include "connman.h"
  31
  32 static DBusConnection *connection = NULL;
  33
  34 static GHashTable *provider_hash = NULL;
  35
  36 static GSList *driver_list = NULL;
  37
  38 struct connman_provider {
  39         struct connman_element element;
  40         struct connman_service *vpn_service;
  41         char *identifier;
  42         char *name;
  43         char *type;
  44         char *host;
  45         char *dns;
  46         char *domain;
  47         struct connman_provider_driver *driver;
  48         void *driver_data;
  49 };
  50
  51 void __connman_provider_append_properties(struct connman_provider *provider,
  52                                                         DBusMessageIter *iter)
  53 {
  54         if (provider->host != NULL)
  55                 connman_dbus_dict_append_basic(iter, "Host",
  56                                         DBUS_TYPE_STRING, &provider->host);
  57
  58         if (provider->domain != NULL)
  59                 connman_dbus_dict_append_basic(iter, "Domain",
  60                                         DBUS_TYPE_STRING, &provider->domain);
  61
  62         if (provider->type != NULL)
  63                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
  64                                                  &provider->type);
  65 }
  66
  67 static struct connman_provider *connman_provider_lookup(const char *identifier)
  68 {
  69         struct connman_provider *provider = NULL;
  70
  71         provider = g_hash_table_lookup(provider_hash, identifier);
  72
  73         return provider;
  74 }
  75
  76 static int connman_provider_setup_vpn_ipv4(struct connman_provider *provider,
  77                                                 struct connman_element *element)
  78 {
  79         if (element == NULL || provider == NULL)
  80                 return -EINVAL;
  81
  82         DBG("set vpn type %d", element->type);
  83
  84         g_free(element->ipv4.address);
  85         element->ipv4.address = g_strdup(provider->element.ipv4.address);
  86
  87         g_free(element->ipv4.netmask);
  88         element->ipv4.netmask = g_strdup(provider->element.ipv4.netmask);
  89
  90         g_free(element->ipv4.gateway);
  91         element->ipv4.gateway = g_strdup(provider->element.ipv4.gateway);
  92
  93         g_free(element->ipv4.broadcast);
  94         element->ipv4.broadcast = g_strdup(provider->element.ipv4.broadcast);
  95
  96         g_free(element->ipv4.pac);
  97         element->ipv4.pac = g_strdup(provider->element.ipv4.pac);
  98
  99         return connman_element_register(element, &provider->element);
 100 }
 101
 102 struct connman_provider *connman_provider_ref(struct connman_provider *provider)
 103 {
 104         DBG("provider %p", provider);
 105
 106         if (connman_element_ref(&provider->element) == NULL)
 107                 return NULL;
 108
 109         return provider;
 110 }
 111
 112 void connman_provider_unref(struct connman_provider *provider)
 113 {
 114         DBG("provider %p", provider);
 115
 116         connman_element_unref(&provider->element);
 117 }
 118
 119 static gboolean match_driver(struct connman_provider *provider,
 120                                 struct connman_provider_driver *driver)
 121 {
 122         if (g_strcmp0(driver->name, provider->type) == 0)
 123                 return TRUE;
 124
 125         return FALSE;
 126 }
 127
 128 static int provider_probe(struct connman_provider *provider)
 129 {
 130         GSList *list;
 131
 132         DBG("provider %p name %s", provider, provider->name);
 133
 134         if (provider->driver != NULL)
 135                 return -EALREADY;
 136
 137         for (list = driver_list; list; list = list->next) {
 138                 struct connman_provider_driver *driver = list->data;
 139
 140                 if (match_driver(provider, driver) == FALSE)
 141                         continue;
 142
 143                 DBG("driver %p name %s", driver, driver->name);
 144
 145                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 146                         provider->driver = driver;
 147                         break;
 148                 }
 149         }
 150
 151         if (provider->driver == NULL)
 152                 return -ENODEV;
 153
 154         return 0;
 155 }
 156
 157 int __connman_provider_disconnect(struct connman_provider *provider)
 158 {
 159         int err;
 160
 161         DBG("provider %p", provider);
 162
 163         if (provider->driver != NULL && provider->driver->disconnect != NULL)
 164                 err = provider->driver->disconnect(provider);
 165         else
 166                 return -EOPNOTSUPP;
 167
 168         if (provider->vpn_service != NULL)
 169                 __connman_service_indicate_state(provider->vpn_service,
 170                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 171         if (err < 0) {
 172                 if (err != -EINPROGRESS)
 173                         return err;
 174
 175                 return -EINPROGRESS;
 176         }
 177
 178         return 0;
 179 }
 180
 181 int __connman_provider_connect(struct connman_provider *provider)
 182 {
 183         int err;
 184
 185         DBG("provider %p", provider);
 186
 187         g_free(provider->element.ipv4.address);
 188         g_free(provider->element.ipv4.netmask);
 189         g_free(provider->element.ipv4.gateway);
 190         g_free(provider->element.ipv4.broadcast);
 191         g_free(provider->element.ipv4.pac);
 192
 193         provider->element.ipv4.address = NULL;
 194         provider->element.ipv4.netmask = NULL;
 195         provider->element.ipv4.gateway = NULL;
 196         provider->element.ipv4.broadcast = NULL;
 197         provider->element.ipv4.pac = NULL;
 198
 199         if (provider->driver != NULL && provider->driver->connect != NULL)
 200                 err = provider->driver->connect(provider);
 201         else
 202                 return -EOPNOTSUPP;
 203
 204         if (err < 0) {
 205                 if (err != -EINPROGRESS)
 206                         return err;
 207
 208                 __connman_service_indicate_state(provider->vpn_service,
 209                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 210                 return -EINPROGRESS;
 211         }
 212
 213         return 0;
 214 }
 215
 216 int __connman_provider_remove(const char *path)
 217 {
 218         struct connman_provider *provider;
 219         GHashTableIter iter;
 220         gpointer value, key;
 221
 222         DBG("path %s", path);
 223
 224         g_hash_table_iter_init(&iter, provider_hash);
 225         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 226                 const char *srv_path;
 227                 provider = value;
 228
 229                 if (provider->vpn_service == NULL)
 230                         continue;
 231
 232                 srv_path = __connman_service_get_path(provider->vpn_service);
 233
 234                 if (g_strcmp0(srv_path, path) == 0) {
 235                         DBG("Removing VPN %s", provider->identifier);
 236                         g_hash_table_remove(provider_hash,
 237                                                 provider->identifier);
 238                         return 0;
 239                 }
 240         }
 241
 242         return -ENXIO;
 243 }
 244
 245 static int set_connected(struct connman_provider *provider,
 246                                         connman_bool_t connected)
 247 {
 248         struct connman_service *service = provider->vpn_service;
 249
 250         if (service == NULL)
 251                 return -ENODEV;
 252
 253         if (connected == TRUE) {
 254                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 255                 struct connman_element *element;
 256                 char *nameservers = NULL, *name = NULL;
 257                 const char *value;
 258                 char *second_ns;
 259                 int err;
 260
 261                 __connman_service_indicate_state(provider->vpn_service,
 262                                         CONNMAN_SERVICE_STATE_CONFIGURATION);
 263
 264                 type = CONNMAN_ELEMENT_TYPE_IPV4;
 265
 266                 element = connman_element_create(NULL);
 267                 if (element == NULL)
 268                         return -ENOMEM;
 269
 270                 element->type  = type;
 271                 element->index = provider->element.index;
 272
 273                 err = connman_provider_setup_vpn_ipv4(provider, element);
 274                 if (err < 0) {
 275                         connman_element_unref(element);
 276
 277                         __connman_service_indicate_state(service,
 278                                                 CONNMAN_SERVICE_STATE_FAILURE);
 279
 280                         return err;
 281                 }
 282
 283                 __connman_service_indicate_state(service,
 284                                                 CONNMAN_SERVICE_STATE_READY);
 285
 286                 __connman_service_set_domainname(service, provider->domain);
 287
 288                 name = connman_inet_ifname(provider->element.index);
 289
 290                 nameservers = g_strdup(provider->dns);
 291                 value = nameservers;
 292                 second_ns = strchr(value, ' ');
 293                 if (second_ns)
 294                         *(second_ns++) = 0;
 295                 __connman_service_append_nameserver(service, value);
 296                 value = second_ns;
 297
 298                 while (value) {
 299                         char *next = strchr(value, ' ');
 300                         if (next)
 301                                 *(next++) = 0;
 302
 303                         connman_resolver_append(name, provider->domain, value);
 304                         value = next;
 305                 }
 306
 307                 g_free(nameservers);
 308                 g_free(name);
 309
 310         } else {
 311                 connman_element_unregister_children(&provider->element);
 312                 __connman_service_indicate_state(service,
 313                                                 CONNMAN_SERVICE_STATE_IDLE);
 314         }
 315
 316         return 0;
 317 }
 318
 319 int connman_provider_set_state(struct connman_provider *provider,
 320                                         enum connman_provider_state state)
 321 {
 322         if (provider == NULL || provider->vpn_service == NULL)
 323                 return -EINVAL;
 324
 325         switch (state) {
 326         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 327                 return -EINVAL;
 328         case CONNMAN_PROVIDER_STATE_IDLE:
 329                 return set_connected(provider, FALSE);
 330         case CONNMAN_PROVIDER_STATE_CONNECT:
 331                 return __connman_service_indicate_state(provider->vpn_service,
 332                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 333         case CONNMAN_PROVIDER_STATE_READY:
 334                 return set_connected(provider, TRUE);
 335         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 336                 return __connman_service_indicate_state(provider->vpn_service,
 337                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 338         case CONNMAN_PROVIDER_STATE_FAILURE:
 339                 return __connman_service_indicate_state(provider->vpn_service,
 340                                         CONNMAN_SERVICE_STATE_FAILURE);
 341         }
 342
 343         return -EINVAL;
 344 }
 345
 346 static void unregister_provider(gpointer data)
 347 {
 348         struct connman_provider *provider = data;
 349         struct connman_service *service = provider->vpn_service;
 350
 351         DBG("provider %p", provider);
 352
 353         provider->vpn_service = NULL;
 354         __connman_service_put(service);
 355
 356         connman_element_unregister(&provider->element);
 357         connman_provider_unref(provider);
 358 }
 359
 360 static void provider_destruct(struct connman_element *element)
 361 {
 362         struct connman_provider *provider = element->private;
 363
 364         DBG("provider %p", provider);
 365
 366         g_free(provider->name);
 367         g_free(provider->type);
 368         g_free(provider->domain);
 369         g_free(provider->identifier);
 370         g_free(provider->dns);
 371 }
 372
 373 static void provider_initialize(struct connman_provider *provider)
 374 {
 375         DBG("provider %p", provider);
 376
 377         __connman_element_initialize(&provider->element);
 378
 379         provider->element.private = provider;
 380         provider->element.destruct = provider_destruct;
 381
 382         provider->element.ipv4.address = NULL;
 383         provider->element.ipv4.netmask = NULL;
 384         provider->element.ipv4.gateway = NULL;
 385         provider->element.ipv4.broadcast = NULL;
 386         provider->element.ipv4.pac = NULL;
 387
 388         provider->name = NULL;
 389         provider->type = NULL;
 390         provider->dns = NULL;
 391         provider->domain = NULL;
 392         provider->identifier = NULL;
 393 }
 394
 395 static struct connman_provider *connman_provider_new(void)
 396 {
 397         struct connman_provider *provider;
 398
 399         provider = g_try_new0(struct connman_provider, 1);
 400         if (provider == NULL)
 401                 return NULL;
 402
 403         DBG("provider %p", provider);
 404         provider_initialize(provider);
 405
 406         return provider;
 407 }
 408
 409 static struct connman_provider *connman_provider_get(const char *identifier)
 410 {
 411         struct connman_provider *provider;
 412
 413         provider = g_hash_table_lookup(provider_hash, identifier);
 414         if (provider != NULL)
 415                 return provider;
 416
 417         provider = connman_provider_new();
 418         if (provider == NULL)
 419                 return NULL;
 420
 421         DBG("provider %p", provider);
 422
 423         provider->identifier = g_strdup(identifier);
 424
 425         g_hash_table_insert(provider_hash, provider->identifier, provider);
 426
 427         provider->element.name = g_strdup(identifier);
 428         connman_element_register(&provider->element, NULL);
 429
 430         return provider;
 431 }
 432
 433 static void provider_dbus_ident(char *ident)
 434 {
 435         int i, len = strlen(ident);
 436
 437         for (i = 0; i < len; i++) {
 438                 if (ident[i] >= '0' && ident[i] <= '9')
 439                         continue;
 440                 if (ident[i] >= 'a' && ident[i] <= 'z')
 441                         continue;
 442                 if (ident[i] >= 'A' && ident[i] <= 'Z')
 443                         continue;
 444                 ident[i] = '_';
 445         }
 446 }
 447
 448 int __connman_provider_create_and_connect(DBusMessage *msg)
 449 {
 450         struct connman_provider *provider;
 451         DBusMessageIter iter, array;
 452         const char *type = NULL, *name = NULL, *service_path = NULL;
 453         const char *host = NULL, *domain = NULL;
 454         char *ident;
 455         gboolean created = FALSE;
 456         int err;
 457
 458         dbus_message_iter_init(msg, &iter);
 459         dbus_message_iter_recurse(&iter, &array);
 460
 461         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 462                 DBusMessageIter entry, value;
 463                 const char *key;
 464
 465                 dbus_message_iter_recurse(&array, &entry);
 466                 dbus_message_iter_get_basic(&entry, &key);
 467
 468                 dbus_message_iter_next(&entry);
 469                 dbus_message_iter_recurse(&entry, &value);
 470
 471                 switch (dbus_message_iter_get_arg_type(&value)) {
 472                 case DBUS_TYPE_STRING:
 473                         if (g_str_equal(key, "Type") == TRUE)
 474                                 dbus_message_iter_get_basic(&value, &type);
 475                         else if (g_str_equal(key, "Name") == TRUE)
 476                                 dbus_message_iter_get_basic(&value, &name);
 477                         else if (g_str_equal(key, "Host") == TRUE)
 478                                 dbus_message_iter_get_basic(&value, &host);
 479                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
 480                                 dbus_message_iter_get_basic(&value, &domain);
 481                         break;
 482                 }
 483
 484                 dbus_message_iter_next(&array);
 485         }
 486
 487         if (host == NULL || domain == NULL) {
 488                 err = -EINVAL;
 489                 goto failed;
 490         }
 491
 492         DBG("Type %s name %s", type, name);
 493
 494         if (type == NULL || name == NULL) {
 495                 err = -EOPNOTSUPP;
 496                 goto failed;
 497         }
 498
 499         ident = g_strdup_printf("%s_%s", host, domain);
 500         provider_dbus_ident(ident);
 501
 502         DBG("ident %s", ident);
 503
 504         provider = connman_provider_lookup(ident);
 505
 506         if (provider == NULL) {
 507                 created = TRUE;
 508                 provider = connman_provider_get(ident);
 509                 if (provider) {
 510                         provider->host = g_strdup(host);
 511                         provider->domain = g_strdup(domain);
 512                         provider->name = g_strdup(name);
 513                         provider->type = g_strdup(type);
 514                 }
 515         }
 516
 517         if (provider == NULL) {
 518                 DBG("can not create provider");
 519                 err = -EOPNOTSUPP;
 520                 goto failed;
 521         }
 522         dbus_message_iter_init(msg, &iter);
 523         dbus_message_iter_recurse(&iter, &array);
 524
 525         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 526                 DBusMessageIter entry, value;
 527                 const char *key, *str;
 528
 529                 dbus_message_iter_recurse(&array, &entry);
 530                 dbus_message_iter_get_basic(&entry, &key);
 531
 532                 dbus_message_iter_next(&entry);
 533                 dbus_message_iter_recurse(&entry, &value);
 534
 535                 switch (dbus_message_iter_get_arg_type(&value)) {
 536                 case DBUS_TYPE_STRING:
 537                         dbus_message_iter_get_basic(&value, &str);
 538                         connman_provider_set_string(provider, key, str);
 539                         break;
 540                 }
 541
 542                 dbus_message_iter_next(&array);
 543         }
 544
 545         g_free(ident);
 546
 547         if (provider == NULL) {
 548                 err = -EOPNOTSUPP;
 549                 goto failed;
 550         }
 551
 552         if (created == TRUE)
 553                 provider_probe(provider);
 554
 555         if (provider->vpn_service == NULL)
 556                 provider->vpn_service =
 557                         __connman_service_create_from_provider(provider);
 558         if (provider->vpn_service == NULL) {
 559                 err = -EOPNOTSUPP;
 560                 goto failed;
 561         }
 562
 563         err = __connman_service_connect(provider->vpn_service);
 564         if (err < 0 && err != -EINPROGRESS)
 565                 goto failed;
 566
 567         service_path = __connman_service_get_path(provider->vpn_service);
 568         g_dbus_send_reply(connection, msg,
 569                                 DBUS_TYPE_OBJECT_PATH, &service_path,
 570                                                         DBUS_TYPE_INVALID);
 571         return 0;
 572
 573 failed:
 574         if (provider != NULL && created == TRUE) {
 575                 DBG("can not connect delete provider");
 576                 connman_provider_unref(provider);
 577
 578                 if (provider->vpn_service != NULL) {
 579                         __connman_service_put(provider->vpn_service);
 580                         provider->vpn_service = NULL;
 581                 }
 582         }
 583
 584         return err;
 585 }
 586
 587 const char * __connman_provider_get_ident(struct connman_provider *provider)
 588 {
 589         if (provider == NULL)
 590                 return NULL;
 591
 592         return provider->identifier;
 593 }
 594
 595 int connman_provider_set_string(struct connman_provider *provider,
 596                                         const char *key, const char *value)
 597 {
 598         DBG("provider %p key %s value %s", provider, key, value);
 599
 600         if (g_str_equal(key, "Type") == TRUE) {
 601                 g_free(provider->type);
 602                 provider->type = g_strdup(value);
 603         } else if (g_str_equal(key, "Name") == TRUE) {
 604                 g_free(provider->name);
 605                 provider->name = g_strdup(value);
 606         } else if (g_str_equal(key, "Gateway") == TRUE) {
 607                 g_free(provider->element.ipv4.gateway);
 608                 provider->element.ipv4.gateway = g_strdup(value);
 609         } else if (g_str_equal(key, "Address") == TRUE) {
 610                 g_free(provider->element.ipv4.address);
 611                 provider->element.ipv4.address = g_strdup(value);
 612         } else if (g_str_equal(key, "Netmask") == TRUE) {
 613                 g_free(provider->element.ipv4.netmask);
 614                 provider->element.ipv4.netmask = g_strdup(value);
 615         } else if (g_str_equal(key, "PAC") == TRUE) {
 616                 g_free(provider->element.ipv4.pac);
 617                 provider->element.ipv4.pac = g_strdup(value);
 618                 __connman_service_set_proxy_autoconfig(provider->vpn_service,
 619                                                                         value);
 620         } else if (g_str_equal(key, "DNS") == TRUE) {
 621                 g_free(provider->dns);
 622                 provider->dns = g_strdup(value);
 623         } else if (g_str_equal(key, "Domain") == TRUE) {
 624                 g_free(provider->domain);
 625                 provider->domain = g_strdup(value);
 626         }
 627
 628         return connman_element_set_string(&provider->element, key, value);
 629 }
 630
 631 const char *connman_provider_get_string(struct connman_provider *provider,
 632                                                         const char *key)
 633 {
 634         DBG("provider %p key %s", provider, key);
 635
 636         if (g_str_equal(key, "Type") == TRUE)
 637                 return provider->type;
 638         else if (g_str_equal(key, "Name") == TRUE)
 639                 return provider->name;
 640
 641         return connman_element_get_string(&provider->element, key);
 642 }
 643
 644 void *connman_provider_get_data(struct connman_provider *provider)
 645 {
 646         return provider->driver_data;
 647 }
 648
 649 void connman_provider_set_data(struct connman_provider *provider, void *data)
 650 {
 651         provider->driver_data = data;
 652 }
 653
 654 void connman_provider_set_index(struct connman_provider *provider, int index)
 655 {
 656         struct connman_service *service = provider->vpn_service;
 657         struct connman_ipconfig *ipconfig;
 658
 659         DBG("");
 660
 661         if (service == NULL)
 662                 return;
 663
 664         ipconfig = __connman_service_get_ipconfig(service);
 665
 666         if (ipconfig == NULL) {
 667                 __connman_service_create_ipconfig(service, index);
 668
 669                 ipconfig = __connman_service_get_ipconfig(service);
 670                 if (ipconfig == NULL) {
 671                         DBG("Couldnt create ipconfig");
 672                         goto done;
 673                 }
 674         }
 675
 676         connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 677         __connman_ipconfig_set_index(ipconfig, index);
 678
 679
 680 done:
 681         provider->element.index = index;
 682 }
 683
 684 int connman_provider_get_index(struct connman_provider *provider)
 685 {
 686         return provider->element.index;
 687 }
 688
 689 const char *connman_provider_get_driver_name(struct connman_provider *provider)
 690 {
 691         return provider->driver->name;
 692 }
 693
 694 static gint compare_priority(gconstpointer a, gconstpointer b)
 695 {
 696         return 0;
 697 }
 698
 699 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
 700 {
 701         struct connman_provider *provider = value;
 702
 703         if (provider->driver != NULL && provider->driver->remove)
 704                 provider->driver->remove(provider);
 705 }
 706
 707 int connman_provider_driver_register(struct connman_provider_driver *driver)
 708 {
 709         DBG("driver %p name %s", driver, driver->name);
 710
 711         driver_list = g_slist_insert_sorted(driver_list, driver,
 712                                                         compare_priority);
 713         return 0;
 714 }
 715
 716 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 717 {
 718         DBG("driver %p name %s", driver, driver->name);
 719
 720         driver_list = g_slist_remove(driver_list, driver);
 721 }
 722
 723 static void provider_remove(gpointer key, gpointer value,
 724                                                 gpointer user_data)
 725 {
 726         struct connman_provider *provider = value;
 727
 728         g_hash_table_remove(provider_hash, provider->identifier);
 729 }
 730
 731 static void provider_offline_mode(connman_bool_t enabled)
 732 {
 733         DBG("enabled %d", enabled);
 734
 735         if (enabled == TRUE)
 736                 g_hash_table_foreach(provider_hash, provider_remove, NULL);
 737
 738 }
 739
 740 static struct connman_notifier provider_notifier = {
 741         .name                   = "provider",
 742         .offline_mode           = provider_offline_mode,
 743 };
 744
 745 int __connman_provider_init(void)
 746 {
 747         int err;
 748
 749         DBG("");
 750
 751         connection = connman_dbus_get_connection();
 752
 753         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 754                                                 NULL, unregister_provider);
 755
 756         err = connman_notifier_register(&provider_notifier);
 757         if (err < 0) {
 758                 g_hash_table_destroy(provider_hash);
 759                 dbus_connection_unref(connection);
 760         }
 761
 762         return err;
 763 }
 764
 765 void __connman_provider_cleanup(void)
 766 {
 767         DBG("");
 768
 769         connman_notifier_unregister(&provider_notifier);
 770
 771         g_hash_table_foreach(provider_hash, clean_provider, NULL);
 772
 773         g_hash_table_destroy(provider_hash);
 774         provider_hash = NULL;
 775
 776         dbus_connection_unref(connection);
 777 }