vpn/vpn-provider.c

   1 /*
   2  *
   3  *  ConnMan VPN daemon
   4  *
   5  *  Copyright (C) 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 <string.h>
  29 #include <stdlib.h>
  30 #include <gdbus.h>
  31 #include <connman/log.h>
  32 #include <gweb/gresolv.h>
  33 #include <netdb.h>
  34
  35 #include "../src/connman.h"
  36 #include "connman/agent.h"
  37 #include "connman/vpn-dbus.h"
  38 #include "vpn-provider.h"
  39 #include "vpn.h"
  40
  41 enum {
  42         USER_ROUTES_CHANGED = 0x01,
  43         SERVER_ROUTES_CHANGED = 0x02,
  44 };
  45
  46 static DBusConnection *connection;
  47 static GHashTable *provider_hash;
  48 static GSList *driver_list;
  49 static int configuration_count;
  50 static gboolean handle_routes;
  51
  52 struct vpn_route {
  53         int family;
  54         char *network;
  55         char *netmask;
  56         char *gateway;
  57 };
  58
  59 struct vpn_provider {
  60         int refcount;
  61         int index;
  62         int fd;
  63         enum vpn_provider_state state;
  64         char *path;
  65         char *identifier;
  66         char *name;
  67         char *type;
  68         char *host;
  69         char *domain;
  70         int family;
  71         GHashTable *routes;
  72         struct vpn_provider_driver *driver;
  73         void *driver_data;
  74         GHashTable *setting_strings;
  75         GHashTable *user_routes;
  76         GSList *user_networks;
  77         GResolv *resolv;
  78         char **host_ip;
  79         struct vpn_ipconfig *ipconfig_ipv4;
  80         struct vpn_ipconfig *ipconfig_ipv6;
  81         char **nameservers;
  82         int what_changed;
  83         guint notify_id;
  84 };
  85
  86 static void free_route(gpointer data)
  87 {
  88         struct vpn_route *route = data;
  89
  90         g_free(route->network);
  91         g_free(route->netmask);
  92         g_free(route->gateway);
  93
  94         g_free(route);
  95 }
  96
  97 static void append_route(DBusMessageIter *iter, void *user_data)
  98 {
  99         struct vpn_route *route = user_data;
 100         DBusMessageIter item;
 101         int family = 0;
 102
 103         connman_dbus_dict_open(iter, &item);
 104
 105         if (route == NULL)
 106                 goto empty_dict;
 107
 108         if (route->family == AF_INET)
 109                 family = 4;
 110         else if (route->family == AF_INET6)
 111                 family = 6;
 112
 113         if (family != 0)
 114                 connman_dbus_dict_append_basic(&item, "ProtocolFamily",
 115                                         DBUS_TYPE_INT32, &family);
 116
 117         if (route->network != NULL)
 118                 connman_dbus_dict_append_basic(&item, "Network",
 119                                         DBUS_TYPE_STRING, &route->network);
 120
 121         if (route->netmask != NULL)
 122                 connman_dbus_dict_append_basic(&item, "Netmask",
 123                                         DBUS_TYPE_STRING, &route->netmask);
 124
 125         if (route->gateway != NULL)
 126                 connman_dbus_dict_append_basic(&item, "Gateway",
 127                                         DBUS_TYPE_STRING, &route->gateway);
 128
 129 empty_dict:
 130         connman_dbus_dict_close(iter, &item);
 131 }
 132
 133 static void append_routes(DBusMessageIter *iter, void *user_data)
 134 {
 135         GHashTable *routes = user_data;
 136         GHashTableIter hash;
 137         gpointer value, key;
 138
 139         if (routes == NULL) {
 140                 append_route(iter, NULL);
 141                 return;
 142         }
 143
 144         g_hash_table_iter_init(&hash, routes);
 145
 146         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
 147                 DBusMessageIter dict;
 148
 149                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT, NULL,
 150                                                 &dict);
 151                 append_route(&dict, value);
 152                 dbus_message_iter_close_container(iter, &dict);
 153         }
 154 }
 155
 156 static void send_routes(struct vpn_provider *provider, GHashTable *routes,
 157                         const char *name)
 158 {
 159         connman_dbus_property_changed_array(provider->path,
 160                                         VPN_CONNECTION_INTERFACE,
 161                                         name,
 162                                         DBUS_TYPE_DICT_ENTRY,
 163                                         append_routes,
 164                                         routes);
 165 }
 166
 167 static int provider_property_changed(struct vpn_provider *provider,
 168                                 const char *name)
 169 {
 170         DBG("provider %p name %s", provider, name);
 171
 172         if (g_str_equal(name, "UserRoutes") == TRUE)
 173                 send_routes(provider, provider->user_routes, name);
 174         else if (g_str_equal(name, "ServerRoutes") == TRUE)
 175                 send_routes(provider, provider->routes, name);
 176
 177         return 0;
 178 }
 179
 180 static GSList *read_route_dict(GSList *routes, DBusMessageIter *dicts)
 181 {
 182         DBusMessageIter dict, value, entry;
 183         const char *network, *netmask, *gateway;
 184         struct vpn_route *route;
 185         int family, type;
 186         const char *key;
 187
 188         dbus_message_iter_recurse(dicts, &entry);
 189
 190         network = netmask = gateway = NULL;
 191         family = PF_UNSPEC;
 192
 193         while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_DICT_ENTRY) {
 194
 195                 dbus_message_iter_recurse(&entry, &dict);
 196                 dbus_message_iter_get_basic(&dict, &key);
 197
 198                 dbus_message_iter_next(&dict);
 199                 dbus_message_iter_recurse(&dict, &value);
 200
 201                 type = dbus_message_iter_get_arg_type(&value);
 202
 203                 switch (type) {
 204                 case DBUS_TYPE_STRING:
 205                         if (g_str_equal(key, "ProtocolFamily") == TRUE)
 206                                 dbus_message_iter_get_basic(&value, &family);
 207                         else if (g_str_equal(key, "Network") == TRUE)
 208                                 dbus_message_iter_get_basic(&value, &network);
 209                         else if (g_str_equal(key, "Netmask") == TRUE)
 210                                 dbus_message_iter_get_basic(&value, &netmask);
 211                         else if (g_str_equal(key, "Gateway") == TRUE)
 212                                 dbus_message_iter_get_basic(&value, &gateway);
 213                         break;
 214                 }
 215
 216                 dbus_message_iter_next(&entry);
 217         }
 218
 219         DBG("family %d network %s netmask %s gateway %s", family,
 220                 network, netmask, gateway);
 221
 222         if (network == NULL || netmask == NULL) {
 223                 DBG("Ignoring route as network/netmask is missing");
 224                 return routes;
 225         }
 226
 227         route = g_try_new(struct vpn_route, 1);
 228         if (route == NULL) {
 229                 g_slist_free_full(routes, free_route);
 230                 return NULL;
 231         }
 232
 233         if (family == PF_UNSPEC) {
 234                 family = connman_inet_check_ipaddress(network);
 235                 if (family < 0) {
 236                         DBG("Cannot get address family of %s (%d/%s)", network,
 237                                 family, gai_strerror(family));
 238                         if (strstr(network, ":") != NULL) {
 239                                 DBG("Guessing it is IPv6");
 240                                 family = AF_INET6;
 241                         } else {
 242                                 DBG("Guessing it is IPv4");
 243                                 family = AF_INET;
 244                         }
 245                 }
 246         } else {
 247                 switch (family) {
 248                 case '4':
 249                         family = AF_INET;
 250                         break;
 251                 case '6':
 252                         family = AF_INET6;
 253                         break;
 254                 default:
 255                         family = PF_UNSPEC;
 256                         break;
 257                 }
 258         }
 259
 260         route->family = family;
 261         route->network = g_strdup(network);
 262         route->netmask = g_strdup(netmask);
 263         route->gateway = g_strdup(gateway);
 264
 265         routes = g_slist_prepend(routes, route);
 266         return routes;
 267 }
 268
 269 static GSList *get_user_networks(DBusMessageIter *array)
 270 {
 271         DBusMessageIter entry;
 272         GSList *list = NULL;
 273
 274         while (dbus_message_iter_get_arg_type(array) == DBUS_TYPE_ARRAY) {
 275
 276                 dbus_message_iter_recurse(array, &entry);
 277
 278                 while (dbus_message_iter_get_arg_type(&entry) ==
 279                                                         DBUS_TYPE_STRUCT) {
 280                         DBusMessageIter dicts;
 281
 282                         dbus_message_iter_recurse(&entry, &dicts);
 283
 284                         while (dbus_message_iter_get_arg_type(&dicts) ==
 285                                                         DBUS_TYPE_ARRAY) {
 286
 287                                 list = read_route_dict(list, &dicts);
 288                                 dbus_message_iter_next(&dicts);
 289                         }
 290
 291                         dbus_message_iter_next(&entry);
 292                 }
 293
 294                 dbus_message_iter_next(array);
 295         }
 296
 297         return list;
 298 }
 299
 300 static void set_user_networks(struct vpn_provider *provider, GSList *networks)
 301 {
 302         GSList *list;
 303
 304         for (list = networks; list != NULL; list = g_slist_next(list)) {
 305                 struct vpn_route *route= list->data;
 306
 307                 if (__vpn_provider_append_user_route(provider,
 308                                         route->family, route->network,
 309                                         route->netmask) != 0)
 310                         break;
 311         }
 312 }
 313
 314 static void del_routes(struct vpn_provider *provider)
 315 {
 316         GHashTableIter hash;
 317         gpointer value, key;
 318
 319         g_hash_table_iter_init(&hash, provider->user_routes);
 320         while (handle_routes == TRUE && g_hash_table_iter_next(&hash,
 321                                                 &key, &value) == TRUE) {
 322                 struct vpn_route *route = value;
 323                 if (route->family == AF_INET6) {
 324                         unsigned char prefixlen = atoi(route->netmask);
 325                         connman_inet_del_ipv6_network_route(provider->index,
 326                                                         route->network,
 327                                                         prefixlen);
 328                 } else
 329                         connman_inet_del_host_route(provider->index,
 330                                                 route->network);
 331         }
 332
 333         g_hash_table_remove_all(provider->user_routes);
 334         g_slist_free_full(provider->user_networks, free_route);
 335         provider->user_networks = NULL;
 336 }
 337
 338 static gboolean provider_send_changed(gpointer data)
 339 {
 340         struct vpn_provider *provider = data;
 341
 342         if (provider->what_changed & USER_ROUTES_CHANGED)
 343                 provider_property_changed(provider, "UserRoutes");
 344
 345         if (provider->what_changed & SERVER_ROUTES_CHANGED)
 346                 provider_property_changed(provider, "ServerRoutes");
 347
 348         provider->what_changed = 0;
 349         provider->notify_id = 0;
 350
 351         return FALSE;
 352 }
 353
 354 static void provider_schedule_changed(struct vpn_provider *provider, int flag)
 355 {
 356         if (provider->notify_id != 0)
 357                 g_source_remove(provider->notify_id);
 358
 359         provider->what_changed |= flag;
 360
 361         provider->notify_id = g_timeout_add(100, provider_send_changed,
 362                                                                 provider);
 363 }
 364
 365 static DBusMessage *set_property(DBusConnection *conn, DBusMessage *msg,
 366                                                                 void *data)
 367 {
 368         struct vpn_provider *provider = data;
 369         DBusMessageIter iter, value;
 370         const char *name;
 371         int type;
 372
 373         DBG("conn %p", conn);
 374
 375         if (dbus_message_iter_init(msg, &iter) == FALSE)
 376                 return __connman_error_invalid_arguments(msg);
 377
 378         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 379                 return __connman_error_invalid_arguments(msg);
 380
 381         dbus_message_iter_get_basic(&iter, &name);
 382         dbus_message_iter_next(&iter);
 383
 384         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 385                 return __connman_error_invalid_arguments(msg);
 386
 387         dbus_message_iter_recurse(&iter, &value);
 388
 389         type = dbus_message_iter_get_arg_type(&value);
 390
 391         if (g_str_equal(name, "UserRoutes") == TRUE) {
 392                 GSList *networks;
 393
 394                 if (type != DBUS_TYPE_ARRAY)
 395                         return __connman_error_invalid_arguments(msg);
 396
 397                 networks = get_user_networks(&value);
 398                 if (networks != NULL) {
 399                         del_routes(provider);
 400                         provider->user_networks = networks;
 401                         set_user_networks(provider, provider->user_networks);
 402
 403                         if (handle_routes == FALSE)
 404                                 provider_schedule_changed(provider,
 405                                                         USER_ROUTES_CHANGED);
 406                 }
 407         } else
 408                 return __connman_error_invalid_property(msg);
 409
 410         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 411 }
 412
 413 static DBusMessage *clear_property(DBusConnection *conn, DBusMessage *msg,
 414                                                                 void *data)
 415 {
 416         struct vpn_provider *provider = data;
 417         const char *name;
 418
 419         DBG("conn %p", conn);
 420
 421         dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &name,
 422                                                         DBUS_TYPE_INVALID);
 423
 424         if (g_str_equal(name, "UserRoutes") == TRUE) {
 425                 del_routes(provider);
 426
 427                 if (handle_routes == FALSE)
 428                         provider_property_changed(provider, name);
 429         } else {
 430                 return __connman_error_invalid_property(msg);
 431         }
 432
 433         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 434 }
 435
 436 static DBusMessage *do_connect(DBusConnection *conn, DBusMessage *msg,
 437                                                                 void *data)
 438 {
 439         struct vpn_provider *provider = data;
 440         int err;
 441
 442         DBG("conn %p provider %p", conn, provider);
 443
 444         err = __vpn_provider_connect(provider, msg);
 445         if (err < 0)
 446                 return __connman_error_failed(msg, -err);
 447
 448         return NULL;
 449 }
 450
 451 static DBusMessage *do_disconnect(DBusConnection *conn, DBusMessage *msg,
 452                                                                 void *data)
 453 {
 454         struct vpn_provider *provider = data;
 455         int err;
 456
 457         DBG("conn %p provider %p", conn, provider);
 458
 459         err = __vpn_provider_disconnect(provider);
 460         if (err < 0 && err != -EINPROGRESS)
 461                 return __connman_error_failed(msg, -err);
 462
 463         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 464 }
 465
 466 static const GDBusMethodTable connection_methods[] = {
 467         { GDBUS_METHOD("SetProperty",
 468                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 469                         NULL, set_property) },
 470         { GDBUS_METHOD("ClearProperty",
 471                         GDBUS_ARGS({ "name", "s" }), NULL,
 472                         clear_property) },
 473         { GDBUS_ASYNC_METHOD("Connect", NULL, NULL, do_connect) },
 474         { GDBUS_METHOD("Disconnect", NULL, NULL, do_disconnect) },
 475         { },
 476 };
 477
 478 static const GDBusSignalTable connection_signals[] = {
 479         { GDBUS_SIGNAL("PropertyChanged",
 480                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 481         { },
 482 };
 483
 484 static void resolv_result(GResolvResultStatus status,
 485                                         char **results, gpointer user_data)
 486 {
 487         struct vpn_provider *provider = user_data;
 488
 489         DBG("status %d", status);
 490
 491         if (status == G_RESOLV_RESULT_STATUS_SUCCESS && results != NULL &&
 492                                                 g_strv_length(results) > 0)
 493                 provider->host_ip = g_strdupv(results);
 494
 495         vpn_provider_unref(provider);
 496 }
 497
 498 static void provider_resolv_host_addr(struct vpn_provider *provider)
 499 {
 500         if (provider->host == NULL)
 501                 return;
 502
 503         if (connman_inet_check_ipaddress(provider->host) > 0)
 504                 return;
 505
 506         if (provider->host_ip != NULL)
 507                 return;
 508
 509         /*
 510          * If the hostname is not numeric, try to resolv it. We do not wait
 511          * the result as it might take some time. We will get the result
 512          * before VPN will feed routes to us because VPN client will need
 513          * the IP address also before VPN connection can be established.
 514          */
 515         provider->resolv = g_resolv_new(0);
 516         if (provider->resolv == NULL) {
 517                 DBG("Cannot resolv %s", provider->host);
 518                 return;
 519         }
 520
 521         DBG("Trying to resolv %s", provider->host);
 522
 523         vpn_provider_ref(provider);
 524
 525         g_resolv_lookup_hostname(provider->resolv, provider->host,
 526                                 resolv_result, provider);
 527 }
 528
 529 void __vpn_provider_append_properties(struct vpn_provider *provider,
 530                                                         DBusMessageIter *iter)
 531 {
 532         if (provider->host != NULL)
 533                 connman_dbus_dict_append_basic(iter, "Host",
 534                                         DBUS_TYPE_STRING, &provider->host);
 535
 536         if (provider->domain != NULL)
 537                 connman_dbus_dict_append_basic(iter, "Domain",
 538                                         DBUS_TYPE_STRING, &provider->domain);
 539
 540         if (provider->type != NULL)
 541                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
 542                                                  &provider->type);
 543 }
 544
 545 int __vpn_provider_append_user_route(struct vpn_provider *provider,
 546                         int family, const char *network, const char *netmask)
 547 {
 548         struct vpn_route *route;
 549         char *key = g_strdup_printf("%d/%s/%s", family, network, netmask);
 550
 551         DBG("family %d network %s netmask %s", family, network, netmask);
 552
 553         route = g_hash_table_lookup(provider->user_routes, key);
 554         if (route == NULL) {
 555                 route = g_try_new0(struct vpn_route, 1);
 556                 if (route == NULL) {
 557                         connman_error("out of memory");
 558                         return -ENOMEM;
 559                 }
 560
 561                 route->family = family;
 562                 route->network = g_strdup(network);
 563                 route->netmask = g_strdup(netmask);
 564
 565                 g_hash_table_replace(provider->user_routes, key, route);
 566         } else
 567                 g_free(key);
 568
 569         return 0;
 570 }
 571
 572 static struct vpn_route *get_route(char *route_str)
 573 {
 574         char **elems = g_strsplit(route_str, "/", 0);
 575         char *network, *netmask, *gateway, *family_str;
 576         int family = PF_UNSPEC;
 577         struct vpn_route *route = NULL;
 578
 579         if (elems == NULL)
 580                 return NULL;
 581
 582         family_str = elems[0];
 583
 584         network = elems[1];
 585         if (network == NULL || network[0] == '\0')
 586                 goto out;
 587
 588         netmask = elems[2];
 589         if (netmask == NULL || netmask[0] == '\0')
 590                 goto out;
 591
 592         gateway = elems[3];
 593
 594         route = g_try_new0(struct vpn_route, 1);
 595         if (route == NULL)
 596                 goto out;
 597
 598         if (family_str[0] == '\0' || atoi(family_str) == 0) {
 599                 family = PF_UNSPEC;
 600         } else {
 601                 switch (family_str[0]) {
 602                 case '4':
 603                         family = AF_INET;
 604                         break;
 605                 case '6':
 606                         family = AF_INET6;
 607                         break;
 608                 }
 609         }
 610
 611         if (g_strrstr(network, ":") != NULL) {
 612                 if (family != PF_UNSPEC && family != AF_INET6)
 613                         DBG("You have IPv6 address but you have non IPv6 route");
 614         } else if (g_strrstr(network, ".") != NULL) {
 615                 if (family != PF_UNSPEC && family != AF_INET)
 616                         DBG("You have IPv4 address but you have non IPv4 route");
 617
 618                 if (g_strrstr(netmask, ".") == NULL) {
 619                         /* We have netmask length */
 620                         in_addr_t addr;
 621                         struct in_addr netmask_in;
 622                         unsigned char prefix_len = 32;
 623
 624                         if (netmask != NULL) {
 625                                 char *ptr;
 626                                 long int value = strtol(netmask, &ptr, 10);
 627                                 if (ptr != netmask && *ptr == '\0' &&
 628                                                                 value <= 32)
 629                                         prefix_len = value;
 630                         }
 631
 632                         addr = 0xffffffff << (32 - prefix_len);
 633                         netmask_in.s_addr = htonl(addr);
 634                         netmask = inet_ntoa(netmask_in);
 635
 636                         DBG("network %s netmask %s", network, netmask);
 637                 }
 638         }
 639
 640         if (family == PF_UNSPEC) {
 641                 family = connman_inet_check_ipaddress(network);
 642                 if (family < 0 || family == PF_UNSPEC)
 643                         goto out;
 644         }
 645
 646         route->family = family;
 647         route->network = g_strdup(network);
 648         route->netmask = g_strdup(netmask);
 649         route->gateway = g_strdup(gateway);
 650
 651 out:
 652         g_strfreev(elems);
 653         return route;
 654 }
 655
 656 static GSList *get_routes(gchar **networks)
 657 {
 658         struct vpn_route *route;
 659         GSList *routes = NULL;
 660         int i;
 661
 662         for (i = 0; networks[i] != NULL; i++) {
 663                 route = get_route(networks[i]);
 664                 if (route != NULL)
 665                         routes = g_slist_prepend(routes, route);
 666         }
 667
 668         return routes;
 669 }
 670
 671 static int provider_load_from_keyfile(struct vpn_provider *provider,
 672                 GKeyFile *keyfile)
 673 {
 674         gsize idx = 0;
 675         gchar **settings;
 676         gchar *key, *value;
 677         gsize length, num_user_networks;
 678         gchar **networks = NULL;
 679
 680         settings = g_key_file_get_keys(keyfile, provider->identifier, &length,
 681                                 NULL);
 682         if (settings == NULL) {
 683                 g_key_file_free(keyfile);
 684                 return -ENOENT;
 685         }
 686
 687         while (idx < length) {
 688                 key = settings[idx];
 689                 if (key != NULL) {
 690                         if (g_str_equal(key, "Networks") == TRUE) {
 691                                 networks = g_key_file_get_string_list(keyfile,
 692                                                 provider->identifier,
 693                                                 key,
 694                                                 &num_user_networks,
 695                                                 NULL);
 696                                 provider->user_networks = get_routes(networks);
 697
 698                         } else {
 699                                 value = g_key_file_get_string(keyfile,
 700                                                         provider->identifier,
 701                                                         key, NULL);
 702                                 vpn_provider_set_string(provider, key,
 703                                                         value);
 704                                 g_free(value);
 705                         }
 706                 }
 707                 idx += 1;
 708         }
 709         g_strfreev(settings);
 710         g_strfreev(networks);
 711
 712         if (provider->user_networks != NULL)
 713                 set_user_networks(provider, provider->user_networks);
 714
 715         return 0;
 716 }
 717
 718
 719 static int vpn_provider_load(struct vpn_provider *provider)
 720 {
 721         GKeyFile *keyfile;
 722
 723         DBG("provider %p", provider);
 724
 725         keyfile = __connman_storage_load_provider(provider->identifier);
 726         if (keyfile == NULL)
 727                 return -ENOENT;
 728
 729         provider_load_from_keyfile(provider, keyfile);
 730
 731         g_key_file_free(keyfile);
 732         return 0;
 733 }
 734
 735 static gchar **create_network_list(GSList *networks, gsize *count)
 736 {
 737         GSList *list;
 738         gchar **result = NULL;
 739         unsigned int num_elems = 0;
 740
 741         for (list = networks; list != NULL; list = g_slist_next(list)) {
 742                 struct vpn_route *route = list->data;
 743                 int family;
 744
 745                 result = g_try_realloc(result,
 746                                 (num_elems + 1) * sizeof(gchar *));
 747                 if (result == NULL)
 748                         return NULL;
 749
 750                 switch (route->family) {
 751                 case AF_INET:
 752                         family = 4;
 753                         break;
 754                 case AF_INET6:
 755                         family = 6;
 756                         break;
 757                 default:
 758                         family = 0;
 759                         break;
 760                 }
 761
 762                 result[num_elems] = g_strdup_printf("%d/%s/%s/%s",
 763                                 family, route->network, route->netmask,
 764                                 route->gateway == NULL ? "" : route->gateway);
 765
 766                 num_elems++;
 767         }
 768
 769         result = g_try_realloc(result, (num_elems + 1) * sizeof(gchar *));
 770         if (result == NULL)
 771                 return NULL;
 772
 773         result[num_elems] = NULL;
 774         *count = num_elems;
 775         return result;
 776 }
 777
 778 static int vpn_provider_save(struct vpn_provider *provider)
 779 {
 780         GKeyFile *keyfile;
 781
 782         DBG("provider %p", provider);
 783
 784         keyfile = g_key_file_new();
 785         if (keyfile == NULL)
 786                 return -ENOMEM;
 787
 788         g_key_file_set_string(keyfile, provider->identifier,
 789                         "Name", provider->name);
 790         g_key_file_set_string(keyfile, provider->identifier,
 791                         "Type", provider->type);
 792         g_key_file_set_string(keyfile, provider->identifier,
 793                         "Host", provider->host);
 794         g_key_file_set_string(keyfile, provider->identifier,
 795                         "VPN.Domain", provider->domain);
 796         if (provider->user_networks != NULL) {
 797                 gchar **networks;
 798                 gsize network_count;
 799
 800                 networks = create_network_list(provider->user_networks,
 801                                                         &network_count);
 802                 if (networks != NULL) {
 803                         g_key_file_set_string_list(keyfile,
 804                                                 provider->identifier,
 805                                                 "Networks",
 806                                                 (const gchar ** const)networks,
 807                                                 network_count);
 808                         g_strfreev(networks);
 809                 }
 810         }
 811
 812         if (provider->driver != NULL && provider->driver->save != NULL)
 813                 provider->driver->save(provider, keyfile);
 814
 815         __connman_storage_save_provider(keyfile, provider->identifier);
 816         g_key_file_free(keyfile);
 817
 818         return 0;
 819 }
 820
 821 static struct vpn_provider *vpn_provider_lookup(const char *identifier)
 822 {
 823         struct vpn_provider *provider = NULL;
 824
 825         provider = g_hash_table_lookup(provider_hash, identifier);
 826
 827         return provider;
 828 }
 829
 830 static gboolean match_driver(struct vpn_provider *provider,
 831                                 struct vpn_provider_driver *driver)
 832 {
 833         if (g_strcmp0(driver->name, provider->type) == 0)
 834                 return TRUE;
 835
 836         return FALSE;
 837 }
 838
 839 static int provider_probe(struct vpn_provider *provider)
 840 {
 841         GSList *list;
 842
 843         DBG("provider %p name %s", provider, provider->name);
 844
 845         if (provider->driver != NULL)
 846                 return -EALREADY;
 847
 848         for (list = driver_list; list; list = list->next) {
 849                 struct vpn_provider_driver *driver = list->data;
 850
 851                 if (match_driver(provider, driver) == FALSE)
 852                         continue;
 853
 854                 DBG("driver %p name %s", driver, driver->name);
 855
 856                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 857                         provider->driver = driver;
 858                         break;
 859                 }
 860         }
 861
 862         if (provider->driver == NULL)
 863                 return -ENODEV;
 864
 865         return 0;
 866 }
 867
 868 static void provider_remove(struct vpn_provider *provider)
 869 {
 870         if (provider->driver != NULL) {
 871                 provider->driver->remove(provider);
 872                 provider->driver = NULL;
 873         }
 874 }
 875
 876 static int provider_register(struct vpn_provider *provider)
 877 {
 878         return provider_probe(provider);
 879 }
 880
 881 static void provider_unregister(struct vpn_provider *provider)
 882 {
 883         provider_remove(provider);
 884 }
 885
 886 struct vpn_provider *
 887 vpn_provider_ref_debug(struct vpn_provider *provider,
 888                         const char *file, int line, const char *caller)
 889 {
 890         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
 891                 file, line, caller);
 892
 893         __sync_fetch_and_add(&provider->refcount, 1);
 894
 895         return provider;
 896 }
 897
 898 static void provider_destruct(struct vpn_provider *provider)
 899 {
 900         DBG("provider %p", provider);
 901
 902         if (provider->notify_id != 0)
 903                 g_source_remove(provider->notify_id);
 904
 905         g_free(provider->name);
 906         g_free(provider->type);
 907         g_free(provider->host);
 908         g_free(provider->domain);
 909         g_free(provider->identifier);
 910         g_free(provider->path);
 911         g_slist_free_full(provider->user_networks, free_route);
 912         g_strfreev(provider->nameservers);
 913         g_hash_table_destroy(provider->routes);
 914         g_hash_table_destroy(provider->user_routes);
 915         g_hash_table_destroy(provider->setting_strings);
 916         if (provider->resolv != NULL) {
 917                 g_resolv_unref(provider->resolv);
 918                 provider->resolv = NULL;
 919         }
 920         __vpn_ipconfig_unref(provider->ipconfig_ipv4);
 921         __vpn_ipconfig_unref(provider->ipconfig_ipv6);
 922
 923         g_strfreev(provider->host_ip);
 924         g_free(provider);
 925 }
 926
 927 void vpn_provider_unref_debug(struct vpn_provider *provider,
 928                                 const char *file, int line, const char *caller)
 929 {
 930         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 931                 file, line, caller);
 932
 933         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
 934                 return;
 935
 936         provider_remove(provider);
 937
 938         provider_destruct(provider);
 939 }
 940
 941 static void configuration_count_add(void)
 942 {
 943         DBG("count %d", configuration_count + 1);
 944
 945         __sync_fetch_and_add(&configuration_count, 1);
 946 }
 947
 948 static void configuration_count_del(void)
 949 {
 950         DBG("count %d", configuration_count - 1);
 951
 952         if (__sync_fetch_and_sub(&configuration_count, 1) != 1)
 953                 return;
 954
 955         raise(SIGTERM);
 956 }
 957
 958 int __vpn_provider_disconnect(struct vpn_provider *provider)
 959 {
 960         int err;
 961
 962         DBG("provider %p", provider);
 963
 964         if (provider->driver != NULL && provider->driver->disconnect != NULL)
 965                 err = provider->driver->disconnect(provider);
 966         else
 967                 return -EOPNOTSUPP;
 968
 969         if (err == -EINPROGRESS)
 970                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
 971
 972         return err;
 973 }
 974
 975 static void connect_cb(struct vpn_provider *provider, void *user_data,
 976                                                                 int error)
 977 {
 978         DBusMessage *pending = user_data;
 979
 980         DBG("provider %p user %p error %d", provider, user_data, error);
 981
 982         if (error != 0) {
 983                 DBusMessage *reply = __connman_error_failed(pending, error);
 984                 if (reply != NULL)
 985                         g_dbus_send_message(connection, reply);
 986
 987                 vpn_provider_indicate_error(provider,
 988                                         VPN_PROVIDER_ERROR_CONNECT_FAILED);
 989                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
 990         } else
 991                 g_dbus_send_reply(connection, pending, DBUS_TYPE_INVALID);
 992
 993         dbus_message_unref(pending);
 994 }
 995
 996 int __vpn_provider_connect(struct vpn_provider *provider, DBusMessage *msg)
 997 {
 998         int err;
 999
1000         DBG("provider %p", provider);
1001
1002         if (provider->driver != NULL && provider->driver->connect != NULL) {
1003                 dbus_message_ref(msg);
1004                 err = provider->driver->connect(provider, connect_cb, msg);
1005         } else
1006                 return -EOPNOTSUPP;
1007
1008         if (err == -EINPROGRESS)
1009                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1010
1011         return err;
1012 }
1013
1014 static void connection_removed_signal(struct vpn_provider *provider)
1015 {
1016         DBusMessage *signal;
1017         DBusMessageIter iter;
1018
1019         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1020                         VPN_MANAGER_INTERFACE, "ConnectionRemoved");
1021         if (signal == NULL)
1022                 return;
1023
1024         dbus_message_iter_init_append(signal, &iter);
1025         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1026                                                         &provider->path);
1027         dbus_connection_send(connection, signal, NULL);
1028         dbus_message_unref(signal);
1029 }
1030
1031 static char *get_ident(const char *path)
1032 {
1033         char *pos;
1034
1035         if (*path != '/')
1036                 return NULL;
1037
1038         pos = strrchr(path, '/');
1039         if (pos == NULL)
1040                 return NULL;
1041
1042         return pos + 1;
1043 }
1044
1045 int __vpn_provider_remove(const char *path)
1046 {
1047         struct vpn_provider *provider;
1048         char *ident;
1049
1050         DBG("path %s", path);
1051
1052         ident = get_ident(path);
1053
1054         provider = vpn_provider_lookup(ident);
1055         if (provider != NULL) {
1056                 DBG("Removing VPN %s", provider->identifier);
1057
1058                 connection_removed_signal(provider);
1059
1060                 provider_unregister(provider);
1061                 g_hash_table_remove(provider_hash, provider->identifier);
1062
1063                 __connman_storage_remove_provider(ident);
1064                 return 0;
1065         }
1066
1067         return -ENXIO;
1068 }
1069
1070 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1071 {
1072         struct vpn_provider *provider = user_data;
1073         const char *address, *gateway, *peer;
1074
1075         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1076         if (address != NULL) {
1077                 in_addr_t addr;
1078                 struct in_addr netmask;
1079                 char *mask;
1080                 int prefixlen;
1081
1082                 prefixlen = __vpn_ipconfig_get_prefixlen(
1083                                                 provider->ipconfig_ipv4);
1084
1085                 addr = 0xffffffff << (32 - prefixlen);
1086                 netmask.s_addr = htonl(addr);
1087                 mask = inet_ntoa(netmask);
1088
1089                 connman_dbus_dict_append_basic(iter, "Address",
1090                                                 DBUS_TYPE_STRING, &address);
1091
1092                 connman_dbus_dict_append_basic(iter, "Netmask",
1093                                                 DBUS_TYPE_STRING, &mask);
1094         }
1095
1096         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1097         if (gateway != NULL)
1098                 connman_dbus_dict_append_basic(iter, "Gateway",
1099                                                 DBUS_TYPE_STRING, &gateway);
1100
1101         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1102         if (peer != NULL)
1103                 connman_dbus_dict_append_basic(iter, "Peer",
1104                                                 DBUS_TYPE_STRING, &peer);
1105 }
1106
1107 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1108 {
1109         struct vpn_provider *provider = user_data;
1110         const char *address, *gateway, *peer;
1111
1112         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1113         if (address != NULL) {
1114                 unsigned char prefixlen;
1115
1116                 connman_dbus_dict_append_basic(iter, "Address",
1117                                                 DBUS_TYPE_STRING, &address);
1118
1119                 prefixlen = __vpn_ipconfig_get_prefixlen(
1120                                                 provider->ipconfig_ipv6);
1121
1122                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1123                                                 DBUS_TYPE_BYTE, &prefixlen);
1124         }
1125
1126         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1127         if (gateway != NULL)
1128                 connman_dbus_dict_append_basic(iter, "Gateway",
1129                                                 DBUS_TYPE_STRING, &gateway);
1130
1131         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1132         if (peer != NULL)
1133                 connman_dbus_dict_append_basic(iter, "Peer",
1134                                                 DBUS_TYPE_STRING, &peer);
1135 }
1136
1137 static const char *state2string(enum vpn_provider_state state)
1138 {
1139         switch (state) {
1140         case VPN_PROVIDER_STATE_UNKNOWN:
1141                 break;
1142         case VPN_PROVIDER_STATE_IDLE:
1143                 return "idle";
1144         case VPN_PROVIDER_STATE_CONNECT:
1145                 return "configuration";
1146         case VPN_PROVIDER_STATE_READY:
1147                 return "ready";
1148         case VPN_PROVIDER_STATE_DISCONNECT:
1149                 return "disconnect";
1150         case VPN_PROVIDER_STATE_FAILURE:
1151                 return "failure";
1152         }
1153
1154         return NULL;
1155 }
1156
1157 static int provider_indicate_state(struct vpn_provider *provider,
1158                                 enum vpn_provider_state state)
1159 {
1160         const char *str;
1161
1162         DBG("provider %p state %d", provider, state);
1163
1164         str = state2string(state);
1165         if (str == NULL)
1166                 return -EINVAL;
1167
1168         provider->state = state;
1169
1170         if (state == VPN_PROVIDER_STATE_READY) {
1171                 connman_dbus_property_changed_basic(provider->path,
1172                                         VPN_CONNECTION_INTERFACE, "Index",
1173                                         DBUS_TYPE_INT32, &provider->index);
1174
1175                 if (provider->family == AF_INET)
1176                         connman_dbus_property_changed_dict(provider->path,
1177                                         VPN_CONNECTION_INTERFACE, "IPv4",
1178                                         append_ipv4, provider);
1179                 else if (provider->family == AF_INET6)
1180                         connman_dbus_property_changed_dict(provider->path,
1181                                         VPN_CONNECTION_INTERFACE, "IPv6",
1182                                         append_ipv6, provider);
1183         }
1184
1185         connman_dbus_property_changed_basic(provider->path,
1186                                         VPN_CONNECTION_INTERFACE, "State",
1187                                         DBUS_TYPE_STRING, &str);
1188         return 0;
1189 }
1190
1191 static void append_nameservers(DBusMessageIter *iter, char **servers)
1192 {
1193         int i;
1194
1195         DBG("%p", servers);
1196
1197         for (i = 0; servers[i] != NULL; i++) {
1198                 DBG("servers[%d] %s", i, servers[i]);
1199                 dbus_message_iter_append_basic(iter,
1200                                         DBUS_TYPE_STRING, &servers[i]);
1201         }
1202 }
1203
1204 static void append_dns(DBusMessageIter *iter, void *user_data)
1205 {
1206         struct vpn_provider *provider = user_data;
1207
1208         if (provider->nameservers != NULL)
1209                 append_nameservers(iter, provider->nameservers);
1210 }
1211
1212 static void append_state(DBusMessageIter *iter,
1213                                         struct vpn_provider *provider)
1214 {
1215         char *str;
1216
1217         switch (provider->state) {
1218         case VPN_PROVIDER_STATE_UNKNOWN:
1219         case VPN_PROVIDER_STATE_IDLE:
1220                 str = "idle";
1221                 break;
1222         case VPN_PROVIDER_STATE_CONNECT:
1223                 str = "configuration";
1224                 break;
1225         case VPN_PROVIDER_STATE_READY:
1226                 str = "ready";
1227                 break;
1228         case VPN_PROVIDER_STATE_DISCONNECT:
1229                 str = "disconnect";
1230                 break;
1231         case VPN_PROVIDER_STATE_FAILURE:
1232                 str = "failure";
1233                 break;
1234         }
1235
1236         connman_dbus_dict_append_basic(iter, "State",
1237                                 DBUS_TYPE_STRING, &str);
1238 }
1239
1240 static void append_properties(DBusMessageIter *iter,
1241                                         struct vpn_provider *provider)
1242 {
1243         DBusMessageIter dict;
1244
1245         connman_dbus_dict_open(iter, &dict);
1246
1247         append_state(&dict, provider);
1248
1249         if (provider->type != NULL)
1250                 connman_dbus_dict_append_basic(&dict, "Type",
1251                                         DBUS_TYPE_STRING, &provider->type);
1252
1253         if (provider->name != NULL)
1254                 connman_dbus_dict_append_basic(&dict, "Name",
1255                                         DBUS_TYPE_STRING, &provider->name);
1256
1257         if (provider->host != NULL)
1258                 connman_dbus_dict_append_basic(&dict, "Host",
1259                                         DBUS_TYPE_STRING, &provider->host);
1260         if (provider->index >= 0)
1261                 connman_dbus_dict_append_basic(&dict, "Index",
1262                                         DBUS_TYPE_INT32, &provider->index);
1263         if (provider->domain != NULL)
1264                 connman_dbus_dict_append_basic(&dict, "Domain",
1265                                         DBUS_TYPE_STRING, &provider->domain);
1266
1267         if (provider->family == AF_INET)
1268                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1269                                                 provider);
1270         else if (provider->family == AF_INET6)
1271                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1272                                                 provider);
1273
1274         connman_dbus_dict_append_array(&dict, "Nameservers",
1275                                 DBUS_TYPE_STRING, append_dns, provider);
1276
1277         connman_dbus_dict_append_array(&dict, "UserRoutes",
1278                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1279                                 provider->user_routes);
1280
1281         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1282                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1283                                 provider->routes);
1284
1285         connman_dbus_dict_close(iter, &dict);
1286 }
1287
1288 static void connection_added_signal(struct vpn_provider *provider)
1289 {
1290         DBusMessage *signal;
1291         DBusMessageIter iter;
1292
1293         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1294                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1295         if (signal == NULL)
1296                 return;
1297
1298         dbus_message_iter_init_append(signal, &iter);
1299         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1300                                                         &provider->path);
1301         append_properties(&iter, provider);
1302
1303         dbus_connection_send(connection, signal, NULL);
1304         dbus_message_unref(signal);
1305 }
1306
1307 static connman_bool_t check_host(char **hosts, char *host)
1308 {
1309         int i;
1310
1311         if (hosts == NULL)
1312                 return FALSE;
1313
1314         for (i = 0; hosts[i] != NULL; i++) {
1315                 if (g_strcmp0(hosts[i], host) == 0)
1316                         return TRUE;
1317         }
1318
1319         return FALSE;
1320 }
1321
1322 static void provider_append_routes(gpointer key, gpointer value,
1323                                         gpointer user_data)
1324 {
1325         struct vpn_route *route = value;
1326         struct vpn_provider *provider = user_data;
1327         int index = provider->index;
1328
1329         if (handle_routes == FALSE)
1330                 return;
1331
1332         /*
1333          * If the VPN administrator/user has given a route to
1334          * VPN server, then we must discard that because the
1335          * server cannot be contacted via VPN tunnel.
1336          */
1337         if (check_host(provider->host_ip, route->network) == TRUE) {
1338                 DBG("Discarding VPN route to %s via %s at index %d",
1339                         route->network, route->gateway, index);
1340                 return;
1341         }
1342
1343         if (route->family == AF_INET6) {
1344                 unsigned char prefix_len = atoi(route->netmask);
1345
1346                 connman_inet_add_ipv6_network_route(index, route->network,
1347                                                         route->gateway,
1348                                                         prefix_len);
1349         } else {
1350                 connman_inet_add_network_route(index, route->network,
1351                                                 route->gateway,
1352                                                 route->netmask);
1353         }
1354 }
1355
1356 static int set_connected(struct vpn_provider *provider,
1357                                         connman_bool_t connected)
1358 {
1359         struct vpn_ipconfig *ipconfig;
1360
1361         DBG("provider %p id %s connected %d", provider,
1362                                         provider->identifier, connected);
1363
1364         if (connected == TRUE) {
1365                 if (provider->family == AF_INET6)
1366                         ipconfig = provider->ipconfig_ipv6;
1367                 else
1368                         ipconfig = provider->ipconfig_ipv4;
1369
1370                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1371
1372                 if (handle_routes == TRUE)
1373                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1374
1375                 provider_indicate_state(provider,
1376                                         VPN_PROVIDER_STATE_READY);
1377
1378                 g_hash_table_foreach(provider->routes, provider_append_routes,
1379                                         provider);
1380
1381                 g_hash_table_foreach(provider->user_routes,
1382                                         provider_append_routes, provider);
1383
1384         } else {
1385                 provider_indicate_state(provider,
1386                                         VPN_PROVIDER_STATE_DISCONNECT);
1387
1388                 provider_indicate_state(provider,
1389                                         VPN_PROVIDER_STATE_IDLE);
1390         }
1391
1392         return 0;
1393 }
1394
1395 int vpn_provider_set_state(struct vpn_provider *provider,
1396                                         enum vpn_provider_state state)
1397 {
1398         if (provider == NULL)
1399                 return -EINVAL;
1400
1401         switch (state) {
1402         case VPN_PROVIDER_STATE_UNKNOWN:
1403                 return -EINVAL;
1404         case VPN_PROVIDER_STATE_IDLE:
1405                 return set_connected(provider, FALSE);
1406         case VPN_PROVIDER_STATE_CONNECT:
1407                 return provider_indicate_state(provider, state);
1408         case VPN_PROVIDER_STATE_READY:
1409                 return set_connected(provider, TRUE);
1410         case VPN_PROVIDER_STATE_DISCONNECT:
1411                 return provider_indicate_state(provider, state);
1412         case VPN_PROVIDER_STATE_FAILURE:
1413                 return provider_indicate_state(provider, state);
1414         }
1415         return -EINVAL;
1416 }
1417
1418 int vpn_provider_indicate_error(struct vpn_provider *provider,
1419                                         enum vpn_provider_error error)
1420 {
1421         DBG("provider %p id %s error %d", provider, provider->identifier,
1422                                                                         error);
1423
1424         switch (error) {
1425         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1426                 break;
1427         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1428                 break;
1429         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1430                 break;
1431         default:
1432                 break;
1433         }
1434
1435         return 0;
1436 }
1437
1438 static int connection_unregister(struct vpn_provider *provider)
1439 {
1440         DBG("provider %p path %s", provider, provider->path);
1441
1442         if (provider->path == NULL)
1443                 return -EALREADY;
1444
1445         g_dbus_unregister_interface(connection, provider->path,
1446                                 VPN_CONNECTION_INTERFACE);
1447
1448         g_free(provider->path);
1449         provider->path = NULL;
1450
1451         return 0;
1452 }
1453
1454 static int connection_register(struct vpn_provider *provider)
1455 {
1456         DBG("provider %p path %s", provider, provider->path);
1457
1458         if (provider->path != NULL)
1459                 return -EALREADY;
1460
1461         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1462                                                 provider->identifier);
1463
1464         g_dbus_register_interface(connection, provider->path,
1465                                 VPN_CONNECTION_INTERFACE,
1466                                 connection_methods, connection_signals,
1467                                 NULL, provider, NULL);
1468
1469         return 0;
1470 }
1471
1472 static void unregister_provider(gpointer data)
1473 {
1474         struct vpn_provider *provider = data;
1475
1476         configuration_count_del();
1477
1478         connection_unregister(provider);
1479
1480         vpn_provider_unref(provider);
1481 }
1482
1483 static void provider_initialize(struct vpn_provider *provider)
1484 {
1485         DBG("provider %p", provider);
1486
1487         provider->index = 0;
1488         provider->fd = -1;
1489         provider->name = NULL;
1490         provider->type = NULL;
1491         provider->domain = NULL;
1492         provider->identifier = NULL;
1493         provider->user_networks = NULL;
1494         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1495                                         NULL, free_route);
1496         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1497                                         g_free, free_route);
1498         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1499                                                 g_str_equal, g_free, g_free);
1500 }
1501
1502 static struct vpn_provider *vpn_provider_new(void)
1503 {
1504         struct vpn_provider *provider;
1505
1506         provider = g_try_new0(struct vpn_provider, 1);
1507         if (provider == NULL)
1508                 return NULL;
1509
1510         provider->refcount = 1;
1511
1512         DBG("provider %p", provider);
1513         provider_initialize(provider);
1514
1515         return provider;
1516 }
1517
1518 static struct vpn_provider *vpn_provider_get(const char *identifier)
1519 {
1520         struct vpn_provider *provider;
1521
1522         provider = g_hash_table_lookup(provider_hash, identifier);
1523         if (provider != NULL)
1524                 return provider;
1525
1526         provider = vpn_provider_new();
1527         if (provider == NULL)
1528                 return NULL;
1529
1530         DBG("provider %p", provider);
1531
1532         provider->identifier = g_strdup(identifier);
1533
1534         g_hash_table_insert(provider_hash, provider->identifier, provider);
1535
1536         configuration_count_add();
1537
1538         return provider;
1539 }
1540
1541 static void provider_dbus_ident(char *ident)
1542 {
1543         int i, len = strlen(ident);
1544
1545         for (i = 0; i < len; i++) {
1546                 if (ident[i] >= '0' && ident[i] <= '9')
1547                         continue;
1548                 if (ident[i] >= 'a' && ident[i] <= 'z')
1549                         continue;
1550                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1551                         continue;
1552                 ident[i] = '_';
1553         }
1554 }
1555
1556 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1557                 const char *ident)
1558 {
1559         struct vpn_provider *provider;
1560
1561         if (keyfile == NULL || ident == NULL)
1562                 return NULL;
1563
1564         provider = vpn_provider_lookup(ident);
1565         if (provider == NULL) {
1566                 provider = vpn_provider_get(ident);
1567                 if (provider == NULL) {
1568                         DBG("can not create provider");
1569                         return NULL;
1570                 }
1571
1572                 provider_load_from_keyfile(provider, keyfile);
1573
1574                 if (provider->name == NULL || provider->host == NULL ||
1575                                 provider->domain == NULL) {
1576                         DBG("cannot get name, host or domain");
1577                         vpn_provider_unref(provider);
1578                         return NULL;
1579                 }
1580
1581                 if (provider_register(provider) == 0)
1582                         connection_register(provider);
1583         }
1584         return provider;
1585 }
1586
1587 static void provider_create_all_from_type(const char *provider_type)
1588 {
1589         unsigned int i;
1590         char **providers;
1591         char *id, *type;
1592         GKeyFile *keyfile;
1593
1594         DBG("provider type %s", provider_type);
1595
1596         providers = __connman_storage_get_providers();
1597
1598         for (i = 0; providers[i] != NULL; i+=1) {
1599
1600                 if (strncmp(providers[i], "provider_", 9) != 0)
1601                         continue;
1602
1603                 id = providers[i] + 9;
1604                 keyfile = __connman_storage_load_provider(id);
1605
1606                 if (keyfile == NULL)
1607                         continue;
1608
1609                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1610
1611                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1612
1613                 if (strcmp(provider_type, type) != 0) {
1614                         g_free(type);
1615                         g_key_file_free(keyfile);
1616                         continue;
1617                 }
1618
1619                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1620                         DBG("could not create provider");
1621
1622                 g_free(type);
1623                 g_key_file_free(keyfile);
1624         }
1625         g_strfreev(providers);
1626 }
1627
1628 int __vpn_provider_create(DBusMessage *msg)
1629 {
1630         struct vpn_provider *provider;
1631         DBusMessageIter iter, array;
1632         const char *type = NULL, *name = NULL;
1633         const char *host = NULL, *domain = NULL;
1634         GSList *networks = NULL;
1635         char *ident;
1636         int err;
1637
1638         dbus_message_iter_init(msg, &iter);
1639         dbus_message_iter_recurse(&iter, &array);
1640
1641         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1642                 DBusMessageIter entry, value;
1643                 const char *key;
1644
1645                 dbus_message_iter_recurse(&array, &entry);
1646                 dbus_message_iter_get_basic(&entry, &key);
1647
1648                 dbus_message_iter_next(&entry);
1649                 dbus_message_iter_recurse(&entry, &value);
1650
1651                 switch (dbus_message_iter_get_arg_type(&value)) {
1652                 case DBUS_TYPE_STRING:
1653                         if (g_str_equal(key, "Type") == TRUE)
1654                                 dbus_message_iter_get_basic(&value, &type);
1655                         else if (g_str_equal(key, "Name") == TRUE)
1656                                 dbus_message_iter_get_basic(&value, &name);
1657                         else if (g_str_equal(key, "Host") == TRUE)
1658                                 dbus_message_iter_get_basic(&value, &host);
1659                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
1660                                 dbus_message_iter_get_basic(&value, &domain);
1661                         break;
1662                 case DBUS_TYPE_ARRAY:
1663                         if (g_str_equal(key, "UserRoutes") == TRUE)
1664                                 networks = get_user_networks(&value);
1665                         break;
1666                 }
1667
1668                 dbus_message_iter_next(&array);
1669         }
1670
1671         if (host == NULL || domain == NULL)
1672                 return -EINVAL;
1673
1674         DBG("Type %s name %s networks %p", type, name, networks);
1675
1676         if (type == NULL || name == NULL)
1677                 return -EOPNOTSUPP;
1678
1679         ident = g_strdup_printf("%s_%s", host, domain);
1680         provider_dbus_ident(ident);
1681
1682         DBG("ident %s", ident);
1683
1684         provider = vpn_provider_lookup(ident);
1685         if (provider == NULL) {
1686                 provider = vpn_provider_get(ident);
1687                 if (provider == NULL) {
1688                         DBG("can not create provider");
1689                         g_free(ident);
1690                         return -EOPNOTSUPP;
1691                 }
1692
1693                 provider->host = g_strdup(host);
1694                 provider->domain = g_strdup(domain);
1695                 provider->name = g_strdup(name);
1696                 provider->type = g_strdup(type);
1697
1698                 if (provider_register(provider) == 0)
1699                         vpn_provider_load(provider);
1700
1701                 provider_resolv_host_addr(provider);
1702         }
1703
1704         if (networks != NULL) {
1705                 g_slist_free_full(provider->user_networks, free_route);
1706                 provider->user_networks = networks;
1707                 set_user_networks(provider, provider->user_networks);
1708         }
1709
1710         dbus_message_iter_init(msg, &iter);
1711         dbus_message_iter_recurse(&iter, &array);
1712
1713         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1714                 DBusMessageIter entry, value;
1715                 const char *key, *str;
1716
1717                 dbus_message_iter_recurse(&array, &entry);
1718                 dbus_message_iter_get_basic(&entry, &key);
1719
1720                 dbus_message_iter_next(&entry);
1721                 dbus_message_iter_recurse(&entry, &value);
1722
1723                 switch (dbus_message_iter_get_arg_type(&value)) {
1724                 case DBUS_TYPE_STRING:
1725                         dbus_message_iter_get_basic(&value, &str);
1726                         vpn_provider_set_string(provider, key, str);
1727                         break;
1728                 }
1729
1730                 dbus_message_iter_next(&array);
1731         }
1732
1733         g_free(ident);
1734
1735         vpn_provider_save(provider);
1736
1737         err = provider_register(provider);
1738         if (err != 0 && err != -EALREADY)
1739                 return err;
1740
1741         connection_register(provider);
1742
1743         DBG("provider %p index %d path %s", provider, provider->index,
1744                                                         provider->path);
1745
1746         g_dbus_send_reply(connection, msg,
1747                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1748                                 DBUS_TYPE_INVALID);
1749
1750         connection_added_signal(provider);
1751
1752         return 0;
1753 }
1754
1755 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
1756 {
1757         DBusMessageIter entry;
1758         GHashTableIter hash;
1759         gpointer value, key;
1760
1761         g_hash_table_iter_init(&hash, provider_hash);
1762
1763         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1764                 struct vpn_provider *provider = value;
1765
1766                 DBG("path %s", provider->path);
1767
1768                 if (provider->identifier == NULL)
1769                         continue;
1770
1771                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
1772                                 NULL, &entry);
1773                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
1774                                 &provider->path);
1775                 append_properties(&entry, provider);
1776                 dbus_message_iter_close_container(iter, &entry);
1777         }
1778 }
1779
1780 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
1781 {
1782         DBusMessage *reply;
1783
1784         DBG("");
1785
1786         reply = dbus_message_new_method_return(msg);
1787         if (reply == NULL)
1788                 return NULL;
1789
1790         __connman_dbus_append_objpath_dict_array(reply,
1791                         append_connection_structs, NULL);
1792
1793         return reply;
1794 }
1795
1796 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
1797 {
1798         if (provider == NULL)
1799                 return NULL;
1800
1801         return provider->identifier;
1802 }
1803
1804 int vpn_provider_set_string(struct vpn_provider *provider,
1805                                         const char *key, const char *value)
1806 {
1807         DBG("provider %p key %s value %s", provider, key, value);
1808
1809         if (g_str_equal(key, "Type") == TRUE) {
1810                 g_free(provider->type);
1811                 provider->type = g_strdup(value);
1812         } else if (g_str_equal(key, "Name") == TRUE) {
1813                 g_free(provider->name);
1814                 provider->name = g_strdup(value);
1815         } else if (g_str_equal(key, "Host") == TRUE) {
1816                 g_free(provider->host);
1817                 provider->host = g_strdup(value);
1818         } else if (g_str_equal(key, "VPN.Domain") == TRUE) {
1819                 g_free(provider->domain);
1820                 provider->domain = g_strdup(value);
1821         } else
1822                 g_hash_table_replace(provider->setting_strings,
1823                                 g_strdup(key), g_strdup(value));
1824         return 0;
1825 }
1826
1827 const char *vpn_provider_get_string(struct vpn_provider *provider,
1828                                                         const char *key)
1829 {
1830         DBG("provider %p key %s", provider, key);
1831
1832         if (g_str_equal(key, "Type") == TRUE)
1833                 return provider->type;
1834         else if (g_str_equal(key, "Name") == TRUE)
1835                 return provider->name;
1836         else if (g_str_equal(key, "Host") == TRUE)
1837                 return provider->host;
1838         else if (g_str_equal(key, "HostIP") == TRUE) {
1839                 if (provider->host_ip == NULL ||
1840                                 provider->host_ip[0] == NULL)
1841                         return provider->host;
1842                 else
1843                         return provider->host_ip[0];
1844         } else if (g_str_equal(key, "VPN.Domain") == TRUE)
1845                 return provider->domain;
1846
1847         return g_hash_table_lookup(provider->setting_strings, key);
1848 }
1849
1850 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
1851 {
1852         if (provider == NULL)
1853                 return FALSE;
1854
1855         if (provider->user_routes != NULL &&
1856                         g_hash_table_size(provider->user_routes) > 0)
1857                 return TRUE;
1858
1859         if (provider->routes != NULL &&
1860                         g_hash_table_size(provider->routes) > 0)
1861                 return TRUE;
1862
1863         return FALSE;
1864 }
1865
1866 void *vpn_provider_get_data(struct vpn_provider *provider)
1867 {
1868         return provider->driver_data;
1869 }
1870
1871 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
1872 {
1873         provider->driver_data = data;
1874 }
1875
1876 void vpn_provider_set_index(struct vpn_provider *provider, int index)
1877 {
1878         DBG("index %d provider %p", index, provider);
1879
1880         if (provider->ipconfig_ipv4 == NULL) {
1881                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
1882                                                                 AF_INET);
1883                 if (provider->ipconfig_ipv4 == NULL) {
1884                         DBG("Couldnt create ipconfig for IPv4");
1885                         goto done;
1886                 }
1887         }
1888
1889         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
1890
1891         if (provider->ipconfig_ipv6 == NULL) {
1892                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
1893                                                                 AF_INET6);
1894                 if (provider->ipconfig_ipv6 == NULL) {
1895                         DBG("Couldnt create ipconfig for IPv6");
1896                         goto done;
1897                 }
1898         }
1899
1900         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
1901
1902 done:
1903         provider->index = index;
1904 }
1905
1906 int vpn_provider_get_index(struct vpn_provider *provider)
1907 {
1908         return provider->index;
1909 }
1910
1911 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
1912                                         struct connman_ipaddress *ipaddress)
1913 {
1914         struct vpn_ipconfig *ipconfig = NULL;
1915
1916         switch (ipaddress->family) {
1917         case AF_INET:
1918                 ipconfig = provider->ipconfig_ipv4;
1919                 break;
1920         case AF_INET6:
1921                 ipconfig = provider->ipconfig_ipv6;
1922                 break;
1923         default:
1924                 break;
1925         }
1926
1927         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
1928                                                         ipaddress->family);
1929
1930         if (ipconfig == NULL)
1931                 return -EINVAL;
1932
1933         provider->family = ipaddress->family;
1934
1935         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
1936         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
1937         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
1938         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
1939         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
1940
1941         return 0;
1942 }
1943
1944 int vpn_provider_set_pac(struct vpn_provider *provider,
1945                                 const char *pac)
1946 {
1947         DBG("provider %p pac %s", provider, pac);
1948
1949         return 0;
1950 }
1951
1952
1953 int vpn_provider_set_domain(struct vpn_provider *provider,
1954                                         const char *domain)
1955 {
1956         DBG("provider %p domain %s", provider, domain);
1957
1958         g_free(provider->domain);
1959         provider->domain = g_strdup(domain);
1960
1961         return 0;
1962 }
1963
1964 int vpn_provider_set_nameservers(struct vpn_provider *provider,
1965                                         const char *nameservers)
1966 {
1967         DBG("provider %p nameservers %s", provider, nameservers);
1968
1969         g_strfreev(provider->nameservers);
1970         provider->nameservers = NULL;
1971
1972         if (nameservers == NULL)
1973                 return 0;
1974
1975         provider->nameservers = g_strsplit(nameservers, " ", 0);
1976
1977         return 0;
1978 }
1979
1980 enum provider_route_type {
1981         PROVIDER_ROUTE_TYPE_NONE = 0,
1982         PROVIDER_ROUTE_TYPE_MASK = 1,
1983         PROVIDER_ROUTE_TYPE_ADDR = 2,
1984         PROVIDER_ROUTE_TYPE_GW   = 3,
1985 };
1986
1987 static int route_env_parse(struct vpn_provider *provider, const char *key,
1988                                 int *family, unsigned long *idx,
1989                                 enum provider_route_type *type)
1990 {
1991         char *end;
1992         const char *start;
1993
1994         DBG("name %s", provider->name);
1995
1996         if (!strcmp(provider->type, "openvpn")) {
1997                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
1998                         start = key + strlen("route_network_");
1999                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2000                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2001                         start = key + strlen("route_netmask_");
2002                         *type = PROVIDER_ROUTE_TYPE_MASK;
2003                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2004                         start = key + strlen("route_gateway_");
2005                         *type = PROVIDER_ROUTE_TYPE_GW;
2006                 } else
2007                         return -EINVAL;
2008
2009                 *family = AF_INET;
2010                 *idx = g_ascii_strtoull(start, &end, 10);
2011
2012         } else if (!strcmp(provider->type, "openconnect")) {
2013                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2014                         *family = AF_INET;
2015                         start = key + strlen("CISCO_SPLIT_INC_");
2016                 } else if (g_str_has_prefix(key,
2017                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2018                         *family = AF_INET6;
2019                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2020                 } else
2021                         return -EINVAL;
2022
2023                 *idx = g_ascii_strtoull(start, &end, 10);
2024
2025                 if (strncmp(end, "_ADDR", 5) == 0)
2026                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2027                 else if (strncmp(end, "_MASK", 5) == 0)
2028                         *type = PROVIDER_ROUTE_TYPE_MASK;
2029                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2030                                 *family == AF_INET6) {
2031                         *type = PROVIDER_ROUTE_TYPE_MASK;
2032                 } else
2033                         return -EINVAL;
2034         }
2035
2036         return 0;
2037 }
2038
2039 int vpn_provider_append_route(struct vpn_provider *provider,
2040                                         const char *key, const char *value)
2041 {
2042         struct vpn_route *route;
2043         int ret, family = 0;
2044         unsigned long idx = 0;
2045         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2046
2047         DBG("key %s value %s", key, value);
2048
2049         ret = route_env_parse(provider, key, &family, &idx, &type);
2050         if (ret < 0)
2051                 return ret;
2052
2053         DBG("idx %lu family %d type %d", idx, family, type);
2054
2055         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2056         if (route == NULL) {
2057                 route = g_try_new0(struct vpn_route, 1);
2058                 if (route == NULL) {
2059                         connman_error("out of memory");
2060                         return -ENOMEM;
2061                 }
2062
2063                 route->family = family;
2064
2065                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2066                                                 route);
2067         }
2068
2069         switch (type) {
2070         case PROVIDER_ROUTE_TYPE_NONE:
2071                 break;
2072         case PROVIDER_ROUTE_TYPE_MASK:
2073                 route->netmask = g_strdup(value);
2074                 break;
2075         case PROVIDER_ROUTE_TYPE_ADDR:
2076                 route->network = g_strdup(value);
2077                 break;
2078         case PROVIDER_ROUTE_TYPE_GW:
2079                 route->gateway = g_strdup(value);
2080                 break;
2081         }
2082
2083         if (handle_routes == FALSE) {
2084                 if (route->netmask != NULL && route->gateway != NULL &&
2085                                                         route->network != NULL)
2086                         provider_schedule_changed(provider,
2087                                                 SERVER_ROUTES_CHANGED);
2088         }
2089
2090         return 0;
2091 }
2092
2093 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2094 {
2095         if (provider->driver == NULL)
2096                 return NULL;
2097
2098         return provider->driver->name;
2099 }
2100
2101 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2102 {
2103         return provider->identifier;
2104 }
2105
2106 static gint compare_priority(gconstpointer a, gconstpointer b)
2107 {
2108         return 0;
2109 }
2110
2111 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2112 {
2113         struct vpn_provider *provider = value;
2114
2115         if (provider->driver != NULL && provider->driver->remove)
2116                 provider->driver->remove(provider);
2117
2118         connection_unregister(provider);
2119 }
2120
2121 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2122 {
2123         DBG("driver %p name %s", driver, driver->name);
2124
2125         driver_list = g_slist_insert_sorted(driver_list, driver,
2126                                                         compare_priority);
2127         provider_create_all_from_type(driver->name);
2128         return 0;
2129 }
2130
2131 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2132 {
2133         GHashTableIter iter;
2134         gpointer value, key;
2135
2136         DBG("driver %p name %s", driver, driver->name);
2137
2138         driver_list = g_slist_remove(driver_list, driver);
2139
2140         g_hash_table_iter_init(&iter, provider_hash);
2141         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2142                 struct vpn_provider *provider = value;
2143
2144                 if (provider != NULL && provider->driver != NULL &&
2145                                 provider->driver->type == driver->type &&
2146                                 g_strcmp0(provider->driver->name,
2147                                                         driver->name) == 0) {
2148                         provider->driver = NULL;
2149                 }
2150         }
2151 }
2152
2153 static gboolean check_vpn_count(gpointer data)
2154 {
2155         if (configuration_count == 0) {
2156                 connman_info("No VPN configurations found, quitting.");
2157                 raise(SIGTERM);
2158         }
2159
2160         return FALSE;
2161 }
2162
2163 void __vpn_provider_check_connections(void)
2164 {
2165         /*
2166          * If we were started when there is no providers configured,
2167          * then just quit. This happens when connman starts and its
2168          * vpn plugin asks connman-vpnd if it has any connections
2169          * configured. If there are none, then we can stop the vpn
2170          * daemon.
2171          */
2172         g_timeout_add(1000, check_vpn_count, NULL);
2173 }
2174
2175 const char *vpn_provider_get_name(struct vpn_provider *provider)
2176 {
2177         return provider->name;
2178 }
2179
2180 const char *vpn_provider_get_host(struct vpn_provider *provider)
2181 {
2182         return provider->host;
2183 }
2184
2185 const char *vpn_provider_get_path(struct vpn_provider *provider)
2186 {
2187         return provider->path;
2188 }
2189
2190 static int agent_probe(struct connman_agent *agent)
2191 {
2192         DBG("agent %p", agent);
2193         return 0;
2194 }
2195
2196 static void agent_remove(struct connman_agent *agent)
2197 {
2198         DBG("agent %p", agent);
2199 }
2200
2201 static struct connman_agent_driver agent_driver = {
2202         .name           = "vpn",
2203         .interface      = VPN_AGENT_INTERFACE,
2204         .probe          = agent_probe,
2205         .remove         = agent_remove,
2206 };
2207
2208 int __vpn_provider_init(gboolean do_routes)
2209 {
2210         int err;
2211
2212         DBG("");
2213
2214         handle_routes = do_routes;
2215
2216         err = connman_agent_driver_register(&agent_driver);
2217         if (err < 0) {
2218                 connman_error("Cannot register agent driver for %s",
2219                                                 agent_driver.name);
2220                 return err;
2221         }
2222
2223         connection = connman_dbus_get_connection();
2224
2225         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2226                                                 NULL, unregister_provider);
2227
2228         return 0;
2229 }
2230
2231 void __vpn_provider_cleanup(void)
2232 {
2233         DBG("");
2234
2235         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2236
2237         g_hash_table_destroy(provider_hash);
2238         provider_hash = NULL;
2239
2240         connman_agent_driver_unregister(&agent_driver);
2241
2242         dbus_connection_unref(connection);
2243 }