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         dbus_bool_t split_routing;
  57
  58         if (!provider->driver || !provider->driver->get_property)
  59                 return;
  60
  61         host = provider->driver->get_property(provider, "Host");
  62         domain = provider->driver->get_property(provider, "Domain");
  63         type = provider->driver->get_property(provider, "Type");
  64
  65         if (host)
  66                 connman_dbus_dict_append_basic(iter, "Host",
  67                                         DBUS_TYPE_STRING, &host);
  68
  69         if (domain)
  70                 connman_dbus_dict_append_basic(iter, "Domain",
  71                                         DBUS_TYPE_STRING, &domain);
  72
  73         if (type)
  74                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
  75                                                  &type);
  76
  77         if (provider->vpn_service) {
  78                 split_routing = connman_provider_is_split_routing(provider);
  79                 connman_dbus_dict_append_basic(iter, "SplitRouting",
  80                                         DBUS_TYPE_BOOLEAN, &split_routing);
  81         }
  82 }
  83
  84 struct connman_provider *
  85 connman_provider_ref_debug(struct connman_provider *provider,
  86                         const char *file, int line, const char *caller)
  87 {
  88         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
  89                 file, line, caller);
  90
  91         __sync_fetch_and_add(&provider->refcount, 1);
  92
  93         return provider;
  94 }
  95
  96 static void provider_remove(struct connman_provider *provider)
  97 {
  98         if (provider->driver) {
  99                 provider->driver->remove(provider);
 100                 provider->driver = NULL;
 101         }
 102 }
 103
 104 static void provider_destruct(struct connman_provider *provider)
 105 {
 106         DBG("provider %p", provider);
 107
 108         g_free(provider->identifier);
 109         g_free(provider);
 110 }
 111
 112 void connman_provider_unref_debug(struct connman_provider *provider,
 113                                 const char *file, int line, const char *caller)
 114 {
 115         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 116                 file, line, caller);
 117
 118         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
 119                 return;
 120
 121         provider_destruct(provider);
 122 }
 123
 124 static int provider_indicate_state(struct connman_provider *provider,
 125                                         enum connman_service_state state)
 126 {
 127         DBG("state %d", state);
 128
 129         __connman_service_ipconfig_indicate_state(provider->vpn_service, state,
 130                                         CONNMAN_IPCONFIG_TYPE_IPV4);
 131
 132         return __connman_service_ipconfig_indicate_state(provider->vpn_service,
 133                                         state, CONNMAN_IPCONFIG_TYPE_IPV6);
 134 }
 135
 136 int connman_provider_disconnect(struct connman_provider *provider)
 137 {
 138         int err;
 139
 140         DBG("provider %p", provider);
 141
 142         if (provider->driver && provider->driver->disconnect)
 143                 err = provider->driver->disconnect(provider);
 144         else
 145                 return -EOPNOTSUPP;
 146
 147         if (provider->vpn_service)
 148                 provider_indicate_state(provider,
 149                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 150
 151         if (err < 0)
 152                 return err;
 153
 154         if (provider->vpn_service)
 155                 provider_indicate_state(provider,
 156                                         CONNMAN_SERVICE_STATE_IDLE);
 157
 158         return 0;
 159 }
 160
 161 int connman_provider_remove(struct connman_provider *provider)
 162 {
 163         DBG("Removing VPN %s", provider->identifier);
 164
 165         provider_remove(provider);
 166
 167         connman_provider_set_state(provider, CONNMAN_PROVIDER_STATE_IDLE);
 168
 169         g_hash_table_remove(provider_hash, provider->identifier);
 170
 171         return 0;
 172 }
 173
 174 int __connman_provider_connect(struct connman_provider *provider,
 175                                         const char *dbus_sender)
 176 {
 177         int err;
 178
 179         DBG("provider %p", provider);
 180
 181         if (provider->driver && provider->driver->connect)
 182                 err = provider->driver->connect(provider, dbus_sender);
 183         else
 184                 return -EOPNOTSUPP;
 185
 186         switch (err) {
 187         case 0:
 188                 return 0;
 189
 190         case -EINPROGRESS:
 191                 provider_indicate_state(provider,
 192                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 193                 /* fall through */
 194         /*
 195          * Return EINPROGRESS also for when there is an existing pending call.
 196          * The state should not be indicated again but the real state is
 197          * still in progress for the provider.
 198          */
 199         case -EALREADY:
 200                 return -EINPROGRESS;
 201         }
 202
 203         return err;
 204 }
 205
 206 int __connman_provider_remove_by_path(const char *path)
 207 {
 208         struct connman_provider *provider;
 209         GHashTableIter iter;
 210         gpointer value, key;
 211
 212         DBG("path %s", path);
 213
 214         g_hash_table_iter_init(&iter, provider_hash);
 215         while (g_hash_table_iter_next(&iter, &key, &value)) {
 216                 const char *srv_path;
 217                 provider = value;
 218
 219                 if (!provider->vpn_service)
 220                         continue;
 221
 222                 srv_path = __connman_service_get_path(provider->vpn_service);
 223
 224                 if (g_strcmp0(srv_path, path) == 0) {
 225                         DBG("Removing VPN %s", provider->identifier);
 226
 227                         provider_remove(provider);
 228
 229                         connman_provider_set_state(provider,
 230                                                 CONNMAN_PROVIDER_STATE_IDLE);
 231
 232                         g_hash_table_remove(provider_hash,
 233                                                 provider->identifier);
 234                         return 0;
 235                 }
 236         }
 237
 238         return -ENXIO;
 239 }
 240
 241 static int set_connected(struct connman_provider *provider,
 242                                         bool connected)
 243 {
 244         struct connman_service *service = provider->vpn_service;
 245         struct connman_ipconfig *ipconfig;
 246
 247         if (!service)
 248                 return -ENODEV;
 249
 250         ipconfig = __connman_service_get_ipconfig(service, provider->family);
 251
 252         if (connected) {
 253                 if (!ipconfig) {
 254                         provider_indicate_state(provider,
 255                                                 CONNMAN_SERVICE_STATE_FAILURE);
 256                         return -EIO;
 257                 }
 258
 259                 __connman_ipconfig_address_add(ipconfig);
 260 #if defined TIZEN_EXT
 261                 __connman_ipconfig_gateway_add(ipconfig, service);
 262 #else
 263                 __connman_ipconfig_gateway_add(ipconfig);
 264 #endif
 265
 266                 provider_indicate_state(provider,
 267                                         CONNMAN_SERVICE_STATE_READY);
 268
 269                 if (provider->driver && provider->driver->set_routes)
 270                         provider->driver->set_routes(provider,
 271                                                 CONNMAN_PROVIDER_ROUTE_ALL);
 272
 273         } else {
 274                 if (ipconfig) {
 275                         provider_indicate_state(provider,
 276                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 277                         __connman_ipconfig_gateway_remove(ipconfig);
 278                 }
 279
 280                 provider_indicate_state(provider,
 281                                         CONNMAN_SERVICE_STATE_IDLE);
 282         }
 283
 284         return 0;
 285 }
 286
 287 int connman_provider_set_state(struct connman_provider *provider,
 288                                         enum connman_provider_state state)
 289 {
 290         if (!provider || !provider->vpn_service)
 291                 return -EINVAL;
 292
 293         switch (state) {
 294         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 295                 return -EINVAL;
 296         case CONNMAN_PROVIDER_STATE_IDLE:
 297                 return set_connected(provider, false);
 298         case CONNMAN_PROVIDER_STATE_CONNECT:
 299                 return provider_indicate_state(provider,
 300                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 301         case CONNMAN_PROVIDER_STATE_READY:
 302                 return set_connected(provider, true);
 303         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 304                 return provider_indicate_state(provider,
 305                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 306         case CONNMAN_PROVIDER_STATE_FAILURE:
 307                 return provider_indicate_state(provider,
 308                                         CONNMAN_SERVICE_STATE_FAILURE);
 309         }
 310
 311         return -EINVAL;
 312 }
 313
 314 int connman_provider_indicate_error(struct connman_provider *provider,
 315                                         enum connman_provider_error error)
 316 {
 317         enum connman_service_error service_error;
 318
 319         switch (error) {
 320         case CONNMAN_PROVIDER_ERROR_LOGIN_FAILED:
 321                 service_error = CONNMAN_SERVICE_ERROR_LOGIN_FAILED;
 322                 break;
 323         case CONNMAN_PROVIDER_ERROR_AUTH_FAILED:
 324                 service_error = CONNMAN_SERVICE_ERROR_AUTH_FAILED;
 325                 break;
 326         case CONNMAN_PROVIDER_ERROR_CONNECT_FAILED:
 327                 service_error = CONNMAN_SERVICE_ERROR_CONNECT_FAILED;
 328                 break;
 329         default:
 330                 service_error = CONNMAN_SERVICE_ERROR_UNKNOWN;
 331                 break;
 332         }
 333
 334         return __connman_service_indicate_error(provider->vpn_service,
 335                                                         service_error);
 336 }
 337
 338 int connman_provider_create_service(struct connman_provider *provider)
 339 {
 340         if (provider->vpn_service) {
 341                 bool connected;
 342
 343                 connected = __connman_service_is_connected_state(
 344                         provider->vpn_service, CONNMAN_IPCONFIG_TYPE_IPV4);
 345                 if (connected)
 346                         return -EALREADY;
 347
 348                 connected = __connman_service_is_connected_state(
 349                         provider->vpn_service, CONNMAN_IPCONFIG_TYPE_IPV6);
 350                 if (connected)
 351                         return -EALREADY;
 352
 353                 return 0;
 354         }
 355
 356         provider->vpn_service =
 357                 __connman_service_create_from_provider(provider);
 358
 359         if (!provider->vpn_service) {
 360                 connman_warn("service creation failed for provider %s",
 361                         provider->identifier);
 362
 363                 g_hash_table_remove(provider_hash, provider->identifier);
 364                 return -EOPNOTSUPP;
 365         }
 366
 367         return 0;
 368 }
 369
 370 bool __connman_provider_is_immutable(struct connman_provider *provider)
 371
 372 {
 373         if (provider)
 374                 return provider->immutable;
 375
 376         return false;
 377 }
 378
 379 int connman_provider_set_immutable(struct connman_provider *provider,
 380                                                 bool immutable)
 381 {
 382         if (!provider)
 383                 return -EINVAL;
 384
 385         provider->immutable = immutable;
 386
 387         return 0;
 388 }
 389
 390 static struct connman_provider *provider_lookup(const char *identifier)
 391 {
 392         return g_hash_table_lookup(provider_hash, identifier);
 393 }
 394
 395 static void connection_ready(DBusMessage *msg, int error_code, void *user_data)
 396 {
 397         DBusMessage *reply;
 398         const char *identifier = user_data;
 399
 400         DBG("msg %p error %d", msg, error_code);
 401
 402         if (error_code != 0) {
 403                 reply = __connman_error_failed(msg, -error_code);
 404                 if (!g_dbus_send_message(connection, reply))
 405                         DBG("reply %p send failed", reply);
 406         } else {
 407                 const char *path;
 408                 struct connman_provider *provider;
 409
 410                 provider = provider_lookup(identifier);
 411                 if (!provider) {
 412                         reply = __connman_error_failed(msg, EINVAL);
 413                         g_dbus_send_message(connection, reply);
 414                         return;
 415                 }
 416
 417                 path = __connman_service_get_path(provider->vpn_service);
 418
 419                 g_dbus_send_reply(connection, msg,
 420                                 DBUS_TYPE_OBJECT_PATH, &path,
 421                                 DBUS_TYPE_INVALID);
 422         }
 423 }
 424
 425 int __connman_provider_create_and_connect(DBusMessage *msg)
 426 {
 427         struct connman_provider_driver *driver;
 428
 429         if (!driver_list)
 430                 return -EINVAL;
 431
 432         driver = driver_list->data;
 433         if (!driver || !driver->create)
 434                 return -EINVAL;
 435
 436         DBG("msg %p", msg);
 437
 438         return driver->create(msg, connection_ready);
 439 }
 440
 441 const char *__connman_provider_get_ident(struct connman_provider *provider)
 442 {
 443         if (!provider)
 444                 return NULL;
 445
 446         return provider->identifier;
 447 }
 448
 449 const char * __connman_provider_get_transport_ident(
 450                                         struct connman_provider *provider)
 451 {
 452         if (provider && provider && provider->driver && provider->driver->get_property)
 453                 return provider->driver->get_property(provider, "Transport");
 454
 455         return NULL;
 456 }
 457
 458 int connman_provider_set_string(struct connman_provider *provider,
 459                                         const char *key, const char *value)
 460 {
 461         if (provider->driver && provider->driver->set_property)
 462                 return provider->driver->set_property(provider, key, value);
 463
 464         return 0;
 465 }
 466
 467 const char *connman_provider_get_string(struct connman_provider *provider,
 468                                                         const char *key)
 469 {
 470         if (provider->driver && provider->driver->get_property)
 471                 return provider->driver->get_property(provider, key);
 472
 473         return NULL;
 474 }
 475
 476 bool
 477 __connman_provider_check_routes(struct connman_provider *provider)
 478 {
 479         if (!provider)
 480                 return false;
 481
 482         if (provider->driver && provider->driver->check_routes)
 483                 return provider->driver->check_routes(provider);
 484
 485         return false;
 486 }
 487
 488 void *connman_provider_get_data(struct connman_provider *provider)
 489 {
 490         return provider->driver_data;
 491 }
 492
 493 void connman_provider_set_data(struct connman_provider *provider, void *data)
 494 {
 495         provider->driver_data = data;
 496 }
 497
 498 void connman_provider_set_index(struct connman_provider *provider, int index)
 499 {
 500         struct connman_service *service = provider->vpn_service;
 501         struct connman_ipconfig *ipconfig;
 502
 503         DBG("");
 504
 505         if (!service)
 506                 return;
 507
 508         ipconfig = __connman_service_get_ip4config(service);
 509
 510         if (!ipconfig) {
 511                 connman_service_create_ip4config(service, index);
 512
 513                 ipconfig = __connman_service_get_ip4config(service);
 514                 if (!ipconfig) {
 515                         DBG("Couldn't create ipconfig");
 516                         goto done;
 517                 }
 518         }
 519
 520         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_OFF);
 521         __connman_ipconfig_set_index(ipconfig, index);
 522
 523         ipconfig = __connman_service_get_ip6config(service);
 524
 525         if (!ipconfig) {
 526                 connman_service_create_ip6config(service, index);
 527
 528                 ipconfig = __connman_service_get_ip6config(service);
 529                 if (!ipconfig) {
 530                         DBG("Couldn't create ipconfig for IPv6");
 531                         goto done;
 532                 }
 533         }
 534
 535         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_OFF);
 536         __connman_ipconfig_set_index(ipconfig, index);
 537
 538 done:
 539         provider->index = index;
 540 }
 541
 542 int connman_provider_get_index(struct connman_provider *provider)
 543 {
 544         return provider->index;
 545 }
 546
 547 int connman_provider_set_ipaddress(struct connman_provider *provider,
 548                                         struct connman_ipaddress *ipaddress)
 549 {
 550         struct connman_ipconfig *ipconfig = NULL;
 551
 552         ipconfig = __connman_service_get_ipconfig(provider->vpn_service,
 553                                                         ipaddress->family);
 554         if (!ipconfig)
 555                 return -EINVAL;
 556
 557         provider->family = ipaddress->family;
 558
 559         __connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 560
 561         __connman_ipconfig_set_local(ipconfig, ipaddress->local);
 562         __connman_ipconfig_set_peer(ipconfig, ipaddress->peer);
 563         __connman_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
 564         __connman_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
 565         __connman_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
 566
 567         return 0;
 568 }
 569
 570 int connman_provider_set_pac(struct connman_provider *provider, const char *pac)
 571 {
 572         DBG("provider %p pac %s", provider, pac);
 573
 574         __connman_service_set_pac(provider->vpn_service, pac);
 575
 576         return 0;
 577 }
 578
 579
 580 int connman_provider_set_domain(struct connman_provider *provider,
 581                                         const char *domain)
 582 {
 583         DBG("provider %p domain %s", provider, domain);
 584
 585         __connman_service_set_domainname(provider->vpn_service, domain);
 586
 587         return 0;
 588 }
 589
 590 int connman_provider_set_nameservers(struct connman_provider *provider,
 591                                         char * const *nameservers)
 592 {
 593         int i;
 594
 595         DBG("provider %p nameservers %p", provider, nameservers);
 596
 597         __connman_service_nameserver_clear(provider->vpn_service);
 598
 599         if (!nameservers)
 600                 return 0;
 601
 602         for (i = 0; nameservers[i]; i++)
 603 #if defined TIZEN_EXT
 604                 __connman_service_nameserver_append(provider->vpn_service,
 605                                                 nameservers[i], false,
 606                                                 CONNMAN_IPCONFIG_TYPE_ALL);
 607 #else
 608                 __connman_service_nameserver_append(provider->vpn_service,
 609                                                 nameservers[i], false);
 610 #endif
 611
 612         return 0;
 613 }
 614
 615 void connman_provider_set_autoconnect(struct connman_provider *provider,
 616                                                                 bool flag)
 617 {
 618         if (!provider || !provider->vpn_service)
 619                 return;
 620
 621         /* Save VPN service if autoconnect value changes */
 622         if (connman_service_set_autoconnect(provider->vpn_service, flag))
 623                 __connman_service_save(provider->vpn_service);
 624 }
 625
 626 bool connman_provider_is_split_routing(struct connman_provider *provider)
 627 {
 628         if (!provider || !provider->vpn_service)
 629                 return false;
 630
 631         return __connman_service_is_split_routing(provider->vpn_service);
 632 }
 633
 634 int connman_provider_set_split_routing(struct connman_provider *provider,
 635                                                         bool split_routing)
 636 {
 637         struct connman_service *service;
 638         enum connman_ipconfig_type type;
 639         int service_index;
 640         int vpn_index;
 641         bool service_split_routing;
 642         int err = 0;
 643
 644         DBG("");
 645
 646         if (!provider || !provider->vpn_service)
 647                 return -EINVAL;
 648
 649         service_split_routing = __connman_service_is_split_routing(
 650                                 provider->vpn_service);
 651
 652         if (service_split_routing == split_routing) {
 653                 DBG("split_routing already set %s",
 654                                         split_routing ? "true" : "false");
 655                 return -EALREADY;
 656         }
 657
 658         switch (provider->family) {
 659         case AF_INET:
 660                 type = CONNMAN_IPCONFIG_TYPE_IPV4;
 661                 break;
 662         case AF_INET6:
 663                 type = CONNMAN_IPCONFIG_TYPE_IPV6;
 664                 break;
 665         case AF_UNSPEC:
 666                 type = CONNMAN_IPCONFIG_TYPE_ALL;
 667                 break;
 668         default:
 669                 type = CONNMAN_IPCONFIG_TYPE_UNKNOWN;
 670         }
 671
 672         if (!__connman_service_is_connected_state(provider->vpn_service,
 673                                                                 type)) {
 674                 DBG("%p VPN not connected", provider->vpn_service);
 675                 goto save;
 676         }
 677
 678         vpn_index = __connman_service_get_index(provider->vpn_service);
 679         service_index = __connman_connection_get_vpn_phy_index(vpn_index);
 680         service = __connman_service_lookup_from_index(service_index);
 681         if (!service)
 682                 goto save;
 683
 684         if (split_routing)
 685                 err = __connman_service_move(service, provider->vpn_service,
 686                                         true);
 687         else
 688                 err = __connman_service_move(provider->vpn_service, service,
 689                                         true);
 690
 691         if (err) {
 692                 connman_warn("cannot move service %p and VPN %p error %d",
 693                                         service, provider->vpn_service, err);
 694
 695                 /*
 696                  * In case of error notify vpnd about the current split routing
 697                  * state.
 698                  */
 699                 __connman_service_split_routing_changed(provider->vpn_service);
 700                 goto out;
 701         }
 702
 703 save:
 704         __connman_service_set_split_routing(provider->vpn_service,
 705                                                                 split_routing);
 706         __connman_service_save(provider->vpn_service);
 707
 708 out:
 709         return err;
 710 }
 711
 712 int connman_provider_get_family(struct connman_provider *provider)
 713 {
 714         if (!provider)
 715                 return AF_UNSPEC;
 716
 717         return provider->family;
 718 }
 719
 720 static void unregister_provider(gpointer data)
 721 {
 722         struct connman_provider *provider = data;
 723
 724         DBG("provider %p service %p", provider, provider->vpn_service);
 725
 726         if (provider->vpn_service) {
 727                 connman_service_unref(provider->vpn_service);
 728                 provider->vpn_service = NULL;
 729         }
 730
 731         connman_provider_unref(provider);
 732 }
 733
 734 static gint compare_priority(gconstpointer a, gconstpointer b)
 735 {
 736         return 0;
 737 }
 738
 739 int connman_provider_driver_register(struct connman_provider_driver *driver)
 740 {
 741         DBG("driver %p name %s", driver, driver->name);
 742
 743         driver_list = g_slist_insert_sorted(driver_list, driver,
 744                                                         compare_priority);
 745         return 0;
 746 }
 747
 748 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 749 {
 750         DBG("driver %p name %s", driver, driver->name);
 751
 752         driver_list = g_slist_remove(driver_list, driver);
 753 }
 754
 755 void connman_provider_set_driver(struct connman_provider *provider,
 756                                 struct connman_provider_driver *driver)
 757 {
 758         provider->driver = driver;
 759 }
 760
 761 static void provider_disconnect_all(gpointer key, gpointer value,
 762                                                 gpointer user_data)
 763 {
 764         struct connman_provider *provider = value;
 765
 766         connman_provider_disconnect(provider);
 767 }
 768
 769 static void provider_offline_mode(bool enabled)
 770 {
 771         DBG("enabled %d", enabled);
 772
 773         if (enabled)
 774                 g_hash_table_foreach(provider_hash, provider_disconnect_all,
 775                                                                         NULL);
 776
 777 }
 778
 779 static void provider_initialize(struct connman_provider *provider)
 780 {
 781         DBG("provider %p", provider);
 782
 783         provider->index = 0;
 784         provider->identifier = NULL;
 785 }
 786
 787 static struct connman_provider *provider_new(void)
 788 {
 789         struct connman_provider *provider;
 790
 791         provider = g_try_new0(struct connman_provider, 1);
 792         if (!provider)
 793                 return NULL;
 794
 795         provider->refcount = 1;
 796
 797         DBG("provider %p", provider);
 798         provider_initialize(provider);
 799
 800         return provider;
 801 }
 802
 803 struct connman_provider *connman_provider_get(const char *identifier)
 804 {
 805         struct connman_provider *provider;
 806
 807         provider = g_hash_table_lookup(provider_hash, identifier);
 808         if (provider)
 809                 return provider;
 810
 811         provider = provider_new();
 812         if (!provider)
 813                 return NULL;
 814
 815         DBG("provider %p", provider);
 816
 817         provider->identifier = g_strdup(identifier);
 818
 819         g_hash_table_insert(provider_hash, provider->identifier, provider);
 820
 821         return provider;
 822 }
 823
 824 void connman_provider_put(struct connman_provider *provider)
 825 {
 826         g_hash_table_remove(provider_hash, provider->identifier);
 827 }
 828
 829 static struct connman_provider *provider_get(int index)
 830 {
 831         GHashTableIter iter;
 832         gpointer value, key;
 833
 834         g_hash_table_iter_init(&iter, provider_hash);
 835
 836         while (g_hash_table_iter_next(&iter, &key, &value)) {
 837                 struct connman_provider *provider = value;
 838
 839                 if (provider->index == index)
 840                         return provider;
 841         }
 842
 843         return NULL;
 844 }
 845
 846 static void provider_service_changed(struct connman_service *service,
 847                                 enum connman_service_state state)
 848 {
 849         struct connman_provider *provider;
 850         int vpn_index, service_index;
 851
 852         if (!service)
 853                 return;
 854
 855         switch (state) {
 856         case CONNMAN_SERVICE_STATE_UNKNOWN:
 857         case CONNMAN_SERVICE_STATE_IDLE:
 858         case CONNMAN_SERVICE_STATE_ASSOCIATION:
 859         case CONNMAN_SERVICE_STATE_CONFIGURATION:
 860         case CONNMAN_SERVICE_STATE_READY:
 861         case CONNMAN_SERVICE_STATE_ONLINE:
 862                 return;
 863         case CONNMAN_SERVICE_STATE_DISCONNECT:
 864         case CONNMAN_SERVICE_STATE_FAILURE:
 865                 break;
 866         }
 867
 868         service_index = __connman_service_get_index(service);
 869
 870         vpn_index = __connman_connection_get_vpn_index(service_index);
 871
 872         DBG("service %p %s state %d index %d/%d", service,
 873                 connman_service_get_identifier(service),
 874                 state, service_index, vpn_index);
 875
 876         if (vpn_index < 0)
 877                 return;
 878
 879         provider = provider_get(vpn_index);
 880         if (!provider)
 881                 return;
 882
 883         DBG("disconnect %p index %d", provider, vpn_index);
 884
 885         connman_provider_disconnect(provider);
 886 }
 887
 888 static const struct connman_notifier provider_notifier = {
 889         .name                   = "provider",
 890         .offline_mode           = provider_offline_mode,
 891         .service_state_changed  = provider_service_changed,
 892 };
 893
 894 int __connman_provider_init(void)
 895 {
 896         int err;
 897
 898         DBG("");
 899
 900         connection = connman_dbus_get_connection();
 901
 902         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 903                                                 NULL, unregister_provider);
 904
 905         err = connman_notifier_register(&provider_notifier);
 906         if (err < 0) {
 907                 g_hash_table_destroy(provider_hash);
 908                 dbus_connection_unref(connection);
 909         }
 910
 911         return err;
 912 }
 913
 914 void __connman_provider_cleanup(void)
 915 {
 916         DBG("");
 917
 918         connman_notifier_unregister(&provider_notifier);
 919
 920         g_hash_table_destroy(provider_hash);
 921         provider_hash = NULL;
 922
 923         dbus_connection_unref(connection);
 924 }