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)
 461                 return __connman_error_failed(msg, -err);
 462         else
 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 < 0) {
 970                 if (err != -EINPROGRESS)
 971                         return err;
 972
 973                 return -EINPROGRESS;
 974         }
 975
 976         return 0;
 977 }
 978
 979 static void connect_cb(struct vpn_provider *provider, void *user_data,
 980                                                                 int error)
 981 {
 982         DBusMessage *pending = user_data;
 983
 984         DBG("provider %p user %p error %d", provider, user_data, error);
 985
 986         if (error != 0) {
 987                 DBusMessage *reply = __connman_error_failed(pending, error);
 988                 if (reply != NULL)
 989                         g_dbus_send_message(connection, reply);
 990
 991                 vpn_provider_indicate_error(provider,
 992                                         VPN_PROVIDER_ERROR_CONNECT_FAILED);
 993                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
 994         } else
 995                 g_dbus_send_reply(connection, pending, DBUS_TYPE_INVALID);
 996
 997         dbus_message_unref(pending);
 998 }
 999
1000 int __vpn_provider_connect(struct vpn_provider *provider, DBusMessage *msg)
1001 {
1002         int err;
1003
1004         DBG("provider %p", provider);
1005
1006         if (provider->driver != NULL && provider->driver->connect != NULL) {
1007                 dbus_message_ref(msg);
1008                 err = provider->driver->connect(provider, connect_cb, msg);
1009         } else
1010                 return -EOPNOTSUPP;
1011
1012         return err;
1013 }
1014
1015 static void connection_removed_signal(struct vpn_provider *provider)
1016 {
1017         DBusMessage *signal;
1018         DBusMessageIter iter;
1019
1020         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1021                         VPN_MANAGER_INTERFACE, "ConnectionRemoved");
1022         if (signal == NULL)
1023                 return;
1024
1025         dbus_message_iter_init_append(signal, &iter);
1026         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1027                                                         &provider->path);
1028         dbus_connection_send(connection, signal, NULL);
1029         dbus_message_unref(signal);
1030 }
1031
1032 static char *get_ident(const char *path)
1033 {
1034         char *pos;
1035
1036         if (*path != '/')
1037                 return NULL;
1038
1039         pos = strrchr(path, '/');
1040         if (pos == NULL)
1041                 return NULL;
1042
1043         return pos + 1;
1044 }
1045
1046 int __vpn_provider_remove(const char *path)
1047 {
1048         struct vpn_provider *provider;
1049         char *ident;
1050
1051         DBG("path %s", path);
1052
1053         ident = get_ident(path);
1054
1055         provider = vpn_provider_lookup(ident);
1056         if (provider != NULL) {
1057                 DBG("Removing VPN %s", provider->identifier);
1058
1059                 connection_removed_signal(provider);
1060
1061                 provider_unregister(provider);
1062                 g_hash_table_remove(provider_hash, provider->identifier);
1063
1064                 __connman_storage_remove_provider(ident);
1065                 return 0;
1066         }
1067
1068         return -ENXIO;
1069 }
1070
1071 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1072 {
1073         struct vpn_provider *provider = user_data;
1074         const char *address, *gateway, *peer;
1075
1076         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1077         if (address != NULL) {
1078                 in_addr_t addr;
1079                 struct in_addr netmask;
1080                 char *mask;
1081                 int prefixlen;
1082
1083                 prefixlen = __vpn_ipconfig_get_prefixlen(
1084                                                 provider->ipconfig_ipv4);
1085
1086                 addr = 0xffffffff << (32 - prefixlen);
1087                 netmask.s_addr = htonl(addr);
1088                 mask = inet_ntoa(netmask);
1089
1090                 connman_dbus_dict_append_basic(iter, "Address",
1091                                                 DBUS_TYPE_STRING, &address);
1092
1093                 connman_dbus_dict_append_basic(iter, "Netmask",
1094                                                 DBUS_TYPE_STRING, &mask);
1095         }
1096
1097         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1098         if (gateway != NULL)
1099                 connman_dbus_dict_append_basic(iter, "Gateway",
1100                                                 DBUS_TYPE_STRING, &gateway);
1101
1102         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1103         if (peer != NULL)
1104                 connman_dbus_dict_append_basic(iter, "Peer",
1105                                                 DBUS_TYPE_STRING, &peer);
1106 }
1107
1108 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1109 {
1110         struct vpn_provider *provider = user_data;
1111         const char *address, *gateway, *peer;
1112
1113         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1114         if (address != NULL) {
1115                 unsigned char prefixlen;
1116
1117                 connman_dbus_dict_append_basic(iter, "Address",
1118                                                 DBUS_TYPE_STRING, &address);
1119
1120                 prefixlen = __vpn_ipconfig_get_prefixlen(
1121                                                 provider->ipconfig_ipv6);
1122
1123                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1124                                                 DBUS_TYPE_BYTE, &prefixlen);
1125         }
1126
1127         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1128         if (gateway != NULL)
1129                 connman_dbus_dict_append_basic(iter, "Gateway",
1130                                                 DBUS_TYPE_STRING, &gateway);
1131
1132         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1133         if (peer != NULL)
1134                 connman_dbus_dict_append_basic(iter, "Peer",
1135                                                 DBUS_TYPE_STRING, &peer);
1136 }
1137
1138 static const char *state2string(enum vpn_provider_state state)
1139 {
1140         switch (state) {
1141         case VPN_PROVIDER_STATE_UNKNOWN:
1142                 break;
1143         case VPN_PROVIDER_STATE_IDLE:
1144                 return "idle";
1145         case VPN_PROVIDER_STATE_CONNECT:
1146                 return "configuration";
1147         case VPN_PROVIDER_STATE_READY:
1148                 return "ready";
1149         case VPN_PROVIDER_STATE_DISCONNECT:
1150                 return "disconnect";
1151         case VPN_PROVIDER_STATE_FAILURE:
1152                 return "failure";
1153         }
1154
1155         return NULL;
1156 }
1157
1158 static int provider_indicate_state(struct vpn_provider *provider,
1159                                 enum vpn_provider_state state)
1160 {
1161         const char *str;
1162
1163         DBG("provider %p state %d", provider, state);
1164
1165         str = state2string(state);
1166         if (str == NULL)
1167                 return -EINVAL;
1168
1169         provider->state = state;
1170
1171         if (state == VPN_PROVIDER_STATE_READY) {
1172                 connman_dbus_property_changed_basic(provider->path,
1173                                         VPN_CONNECTION_INTERFACE, "Index",
1174                                         DBUS_TYPE_INT32, &provider->index);
1175
1176                 if (provider->family == AF_INET)
1177                         connman_dbus_property_changed_dict(provider->path,
1178                                         VPN_CONNECTION_INTERFACE, "IPv4",
1179                                         append_ipv4, provider);
1180                 else if (provider->family == AF_INET6)
1181                         connman_dbus_property_changed_dict(provider->path,
1182                                         VPN_CONNECTION_INTERFACE, "IPv6",
1183                                         append_ipv6, provider);
1184         }
1185
1186         connman_dbus_property_changed_basic(provider->path,
1187                                         VPN_CONNECTION_INTERFACE, "State",
1188                                         DBUS_TYPE_STRING, &str);
1189         return 0;
1190 }
1191
1192 static void append_nameservers(DBusMessageIter *iter, char **servers)
1193 {
1194         int i;
1195
1196         DBG("%p", servers);
1197
1198         for (i = 0; servers[i] != NULL; i++) {
1199                 DBG("servers[%d] %s", i, servers[i]);
1200                 dbus_message_iter_append_basic(iter,
1201                                         DBUS_TYPE_STRING, &servers[i]);
1202         }
1203 }
1204
1205 static void append_dns(DBusMessageIter *iter, void *user_data)
1206 {
1207         struct vpn_provider *provider = user_data;
1208
1209         if (provider->nameservers != NULL)
1210                 append_nameservers(iter, provider->nameservers);
1211 }
1212
1213 static void append_state(DBusMessageIter *iter,
1214                                         struct vpn_provider *provider)
1215 {
1216         char *str;
1217
1218         switch (provider->state) {
1219         case VPN_PROVIDER_STATE_UNKNOWN:
1220         case VPN_PROVIDER_STATE_IDLE:
1221                 str = "idle";
1222                 break;
1223         case VPN_PROVIDER_STATE_CONNECT:
1224                 str = "configuration";
1225                 break;
1226         case VPN_PROVIDER_STATE_READY:
1227                 str = "ready";
1228                 break;
1229         case VPN_PROVIDER_STATE_DISCONNECT:
1230                 str = "disconnect";
1231                 break;
1232         case VPN_PROVIDER_STATE_FAILURE:
1233                 str = "failure";
1234                 break;
1235         }
1236
1237         connman_dbus_dict_append_basic(iter, "State",
1238                                 DBUS_TYPE_STRING, &str);
1239 }
1240
1241 static void append_properties(DBusMessageIter *iter,
1242                                         struct vpn_provider *provider)
1243 {
1244         DBusMessageIter dict;
1245
1246         connman_dbus_dict_open(iter, &dict);
1247
1248         append_state(&dict, provider);
1249
1250         if (provider->type != NULL)
1251                 connman_dbus_dict_append_basic(&dict, "Type",
1252                                         DBUS_TYPE_STRING, &provider->type);
1253
1254         if (provider->name != NULL)
1255                 connman_dbus_dict_append_basic(&dict, "Name",
1256                                         DBUS_TYPE_STRING, &provider->name);
1257
1258         if (provider->host != NULL)
1259                 connman_dbus_dict_append_basic(&dict, "Host",
1260                                         DBUS_TYPE_STRING, &provider->host);
1261         if (provider->index >= 0)
1262                 connman_dbus_dict_append_basic(&dict, "Index",
1263                                         DBUS_TYPE_INT32, &provider->index);
1264         if (provider->domain != NULL)
1265                 connman_dbus_dict_append_basic(&dict, "Domain",
1266                                         DBUS_TYPE_STRING, &provider->domain);
1267
1268         if (provider->family == AF_INET)
1269                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1270                                                 provider);
1271         else if (provider->family == AF_INET6)
1272                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1273                                                 provider);
1274
1275         connman_dbus_dict_append_array(&dict, "Nameservers",
1276                                 DBUS_TYPE_STRING, append_dns, provider);
1277
1278         connman_dbus_dict_append_array(&dict, "UserRoutes",
1279                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1280                                 provider->user_routes);
1281
1282         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1283                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1284                                 provider->routes);
1285
1286         connman_dbus_dict_close(iter, &dict);
1287 }
1288
1289 static void connection_added_signal(struct vpn_provider *provider)
1290 {
1291         DBusMessage *signal;
1292         DBusMessageIter iter;
1293
1294         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1295                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1296         if (signal == NULL)
1297                 return;
1298
1299         dbus_message_iter_init_append(signal, &iter);
1300         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1301                                                         &provider->path);
1302         append_properties(&iter, provider);
1303
1304         dbus_connection_send(connection, signal, NULL);
1305         dbus_message_unref(signal);
1306 }
1307
1308 static connman_bool_t check_host(char **hosts, char *host)
1309 {
1310         int i;
1311
1312         if (hosts == NULL)
1313                 return FALSE;
1314
1315         for (i = 0; hosts[i] != NULL; i++) {
1316                 if (g_strcmp0(hosts[i], host) == 0)
1317                         return TRUE;
1318         }
1319
1320         return FALSE;
1321 }
1322
1323 static void provider_append_routes(gpointer key, gpointer value,
1324                                         gpointer user_data)
1325 {
1326         struct vpn_route *route = value;
1327         struct vpn_provider *provider = user_data;
1328         int index = provider->index;
1329
1330         if (handle_routes == FALSE)
1331                 return;
1332
1333         /*
1334          * If the VPN administrator/user has given a route to
1335          * VPN server, then we must discard that because the
1336          * server cannot be contacted via VPN tunnel.
1337          */
1338         if (check_host(provider->host_ip, route->network) == TRUE) {
1339                 DBG("Discarding VPN route to %s via %s at index %d",
1340                         route->network, route->gateway, index);
1341                 return;
1342         }
1343
1344         if (route->family == AF_INET6) {
1345                 unsigned char prefix_len = atoi(route->netmask);
1346
1347                 connman_inet_add_ipv6_network_route(index, route->network,
1348                                                         route->gateway,
1349                                                         prefix_len);
1350         } else {
1351                 connman_inet_add_network_route(index, route->network,
1352                                                 route->gateway,
1353                                                 route->netmask);
1354         }
1355 }
1356
1357 static int set_connected(struct vpn_provider *provider,
1358                                         connman_bool_t connected)
1359 {
1360         struct vpn_ipconfig *ipconfig;
1361
1362         DBG("provider %p id %s connected %d", provider,
1363                                         provider->identifier, connected);
1364
1365         if (connected == TRUE) {
1366                 if (provider->family == AF_INET6)
1367                         ipconfig = provider->ipconfig_ipv6;
1368                 else
1369                         ipconfig = provider->ipconfig_ipv4;
1370
1371                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1372
1373                 if (handle_routes == TRUE)
1374                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1375
1376                 provider_indicate_state(provider,
1377                                         VPN_PROVIDER_STATE_READY);
1378
1379                 g_hash_table_foreach(provider->routes, provider_append_routes,
1380                                         provider);
1381
1382                 g_hash_table_foreach(provider->user_routes,
1383                                         provider_append_routes, provider);
1384
1385         } else {
1386                 provider_indicate_state(provider,
1387                                         VPN_PROVIDER_STATE_DISCONNECT);
1388
1389                 provider_indicate_state(provider,
1390                                         VPN_PROVIDER_STATE_IDLE);
1391         }
1392
1393         return 0;
1394 }
1395
1396 int vpn_provider_set_state(struct vpn_provider *provider,
1397                                         enum vpn_provider_state state)
1398 {
1399         if (provider == NULL)
1400                 return -EINVAL;
1401
1402         switch (state) {
1403         case VPN_PROVIDER_STATE_UNKNOWN:
1404                 return -EINVAL;
1405         case VPN_PROVIDER_STATE_IDLE:
1406                 return set_connected(provider, FALSE);
1407         case VPN_PROVIDER_STATE_CONNECT:
1408                 return provider_indicate_state(provider, state);
1409         case VPN_PROVIDER_STATE_READY:
1410                 return set_connected(provider, TRUE);
1411         case VPN_PROVIDER_STATE_DISCONNECT:
1412                 return provider_indicate_state(provider, state);
1413         case VPN_PROVIDER_STATE_FAILURE:
1414                 return provider_indicate_state(provider, state);
1415         }
1416         return -EINVAL;
1417 }
1418
1419 int vpn_provider_indicate_error(struct vpn_provider *provider,
1420                                         enum vpn_provider_error error)
1421 {
1422         DBG("provider %p id %s error %d", provider, provider->identifier,
1423                                                                         error);
1424
1425         switch (error) {
1426         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1427                 break;
1428         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1429                 break;
1430         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1431                 break;
1432         default:
1433                 break;
1434         }
1435
1436         return 0;
1437 }
1438
1439 static int connection_unregister(struct vpn_provider *provider)
1440 {
1441         DBG("provider %p path %s", provider, provider->path);
1442
1443         if (provider->path == NULL)
1444                 return -EALREADY;
1445
1446         g_dbus_unregister_interface(connection, provider->path,
1447                                 VPN_CONNECTION_INTERFACE);
1448
1449         g_free(provider->path);
1450         provider->path = NULL;
1451
1452         return 0;
1453 }
1454
1455 static int connection_register(struct vpn_provider *provider)
1456 {
1457         DBG("provider %p path %s", provider, provider->path);
1458
1459         if (provider->path != NULL)
1460                 return -EALREADY;
1461
1462         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1463                                                 provider->identifier);
1464
1465         g_dbus_register_interface(connection, provider->path,
1466                                 VPN_CONNECTION_INTERFACE,
1467                                 connection_methods, connection_signals,
1468                                 NULL, provider, NULL);
1469
1470         return 0;
1471 }
1472
1473 static void unregister_provider(gpointer data)
1474 {
1475         struct vpn_provider *provider = data;
1476
1477         configuration_count_del();
1478
1479         connection_unregister(provider);
1480
1481         vpn_provider_unref(provider);
1482 }
1483
1484 static void provider_initialize(struct vpn_provider *provider)
1485 {
1486         DBG("provider %p", provider);
1487
1488         provider->index = 0;
1489         provider->fd = -1;
1490         provider->name = NULL;
1491         provider->type = NULL;
1492         provider->domain = NULL;
1493         provider->identifier = NULL;
1494         provider->user_networks = NULL;
1495         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1496                                         NULL, free_route);
1497         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1498                                         g_free, free_route);
1499         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1500                                                 g_str_equal, g_free, g_free);
1501 }
1502
1503 static struct vpn_provider *vpn_provider_new(void)
1504 {
1505         struct vpn_provider *provider;
1506
1507         provider = g_try_new0(struct vpn_provider, 1);
1508         if (provider == NULL)
1509                 return NULL;
1510
1511         provider->refcount = 1;
1512
1513         DBG("provider %p", provider);
1514         provider_initialize(provider);
1515
1516         return provider;
1517 }
1518
1519 static struct vpn_provider *vpn_provider_get(const char *identifier)
1520 {
1521         struct vpn_provider *provider;
1522
1523         provider = g_hash_table_lookup(provider_hash, identifier);
1524         if (provider != NULL)
1525                 return provider;
1526
1527         provider = vpn_provider_new();
1528         if (provider == NULL)
1529                 return NULL;
1530
1531         DBG("provider %p", provider);
1532
1533         provider->identifier = g_strdup(identifier);
1534
1535         g_hash_table_insert(provider_hash, provider->identifier, provider);
1536
1537         configuration_count_add();
1538
1539         return provider;
1540 }
1541
1542 static void provider_dbus_ident(char *ident)
1543 {
1544         int i, len = strlen(ident);
1545
1546         for (i = 0; i < len; i++) {
1547                 if (ident[i] >= '0' && ident[i] <= '9')
1548                         continue;
1549                 if (ident[i] >= 'a' && ident[i] <= 'z')
1550                         continue;
1551                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1552                         continue;
1553                 ident[i] = '_';
1554         }
1555 }
1556
1557 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1558                 const char *ident)
1559 {
1560         struct vpn_provider *provider;
1561
1562         if (keyfile == NULL || ident == NULL)
1563                 return NULL;
1564
1565         provider = vpn_provider_lookup(ident);
1566         if (provider == NULL) {
1567                 provider = vpn_provider_get(ident);
1568                 if (provider == NULL) {
1569                         DBG("can not create provider");
1570                         return NULL;
1571                 }
1572
1573                 provider_load_from_keyfile(provider, keyfile);
1574
1575                 if (provider->name == NULL || provider->host == NULL ||
1576                                 provider->domain == NULL) {
1577                         DBG("cannot get name, host or domain");
1578                         vpn_provider_unref(provider);
1579                         return NULL;
1580                 }
1581
1582                 if (provider_register(provider) == 0)
1583                         connection_register(provider);
1584         }
1585         return provider;
1586 }
1587
1588 static void provider_create_all_from_type(const char *provider_type)
1589 {
1590         unsigned int i;
1591         char **providers;
1592         char *id, *type;
1593         GKeyFile *keyfile;
1594
1595         DBG("provider type %s", provider_type);
1596
1597         providers = __connman_storage_get_providers();
1598
1599         for (i = 0; providers[i] != NULL; i+=1) {
1600
1601                 if (strncmp(providers[i], "provider_", 9) != 0)
1602                         continue;
1603
1604                 id = providers[i] + 9;
1605                 keyfile = __connman_storage_load_provider(id);
1606
1607                 if (keyfile == NULL)
1608                         continue;
1609
1610                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1611
1612                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1613
1614                 if (strcmp(provider_type, type) != 0) {
1615                         g_free(type);
1616                         g_key_file_free(keyfile);
1617                         continue;
1618                 }
1619
1620                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1621                         DBG("could not create provider");
1622
1623                 g_free(type);
1624                 g_key_file_free(keyfile);
1625         }
1626         g_strfreev(providers);
1627 }
1628
1629 int __vpn_provider_create(DBusMessage *msg)
1630 {
1631         struct vpn_provider *provider;
1632         DBusMessageIter iter, array;
1633         const char *type = NULL, *name = NULL;
1634         const char *host = NULL, *domain = NULL;
1635         GSList *networks = NULL;
1636         char *ident;
1637         int err;
1638
1639         dbus_message_iter_init(msg, &iter);
1640         dbus_message_iter_recurse(&iter, &array);
1641
1642         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1643                 DBusMessageIter entry, value;
1644                 const char *key;
1645
1646                 dbus_message_iter_recurse(&array, &entry);
1647                 dbus_message_iter_get_basic(&entry, &key);
1648
1649                 dbus_message_iter_next(&entry);
1650                 dbus_message_iter_recurse(&entry, &value);
1651
1652                 switch (dbus_message_iter_get_arg_type(&value)) {
1653                 case DBUS_TYPE_STRING:
1654                         if (g_str_equal(key, "Type") == TRUE)
1655                                 dbus_message_iter_get_basic(&value, &type);
1656                         else if (g_str_equal(key, "Name") == TRUE)
1657                                 dbus_message_iter_get_basic(&value, &name);
1658                         else if (g_str_equal(key, "Host") == TRUE)
1659                                 dbus_message_iter_get_basic(&value, &host);
1660                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
1661                                 dbus_message_iter_get_basic(&value, &domain);
1662                         break;
1663                 case DBUS_TYPE_ARRAY:
1664                         if (g_str_equal(key, "UserRoutes") == TRUE)
1665                                 networks = get_user_networks(&value);
1666                         break;
1667                 }
1668
1669                 dbus_message_iter_next(&array);
1670         }
1671
1672         if (host == NULL || domain == NULL)
1673                 return -EINVAL;
1674
1675         DBG("Type %s name %s networks %p", type, name, networks);
1676
1677         if (type == NULL || name == NULL)
1678                 return -EOPNOTSUPP;
1679
1680         ident = g_strdup_printf("%s_%s", host, domain);
1681         provider_dbus_ident(ident);
1682
1683         DBG("ident %s", ident);
1684
1685         provider = vpn_provider_lookup(ident);
1686         if (provider == NULL) {
1687                 provider = vpn_provider_get(ident);
1688                 if (provider == NULL) {
1689                         DBG("can not create provider");
1690                         g_free(ident);
1691                         return -EOPNOTSUPP;
1692                 }
1693
1694                 provider->host = g_strdup(host);
1695                 provider->domain = g_strdup(domain);
1696                 provider->name = g_strdup(name);
1697                 provider->type = g_strdup(type);
1698
1699                 if (provider_register(provider) == 0)
1700                         vpn_provider_load(provider);
1701
1702                 provider_resolv_host_addr(provider);
1703         }
1704
1705         if (networks != NULL) {
1706                 g_slist_free_full(provider->user_networks, free_route);
1707                 provider->user_networks = networks;
1708                 set_user_networks(provider, provider->user_networks);
1709         }
1710
1711         dbus_message_iter_init(msg, &iter);
1712         dbus_message_iter_recurse(&iter, &array);
1713
1714         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1715                 DBusMessageIter entry, value;
1716                 const char *key, *str;
1717
1718                 dbus_message_iter_recurse(&array, &entry);
1719                 dbus_message_iter_get_basic(&entry, &key);
1720
1721                 dbus_message_iter_next(&entry);
1722                 dbus_message_iter_recurse(&entry, &value);
1723
1724                 switch (dbus_message_iter_get_arg_type(&value)) {
1725                 case DBUS_TYPE_STRING:
1726                         dbus_message_iter_get_basic(&value, &str);
1727                         vpn_provider_set_string(provider, key, str);
1728                         break;
1729                 }
1730
1731                 dbus_message_iter_next(&array);
1732         }
1733
1734         g_free(ident);
1735
1736         vpn_provider_save(provider);
1737
1738         err = provider_register(provider);
1739         if (err != 0 && err != -EALREADY)
1740                 return err;
1741
1742         connection_register(provider);
1743
1744         DBG("provider %p index %d path %s", provider, provider->index,
1745                                                         provider->path);
1746
1747         g_dbus_send_reply(connection, msg,
1748                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1749                                 DBUS_TYPE_INVALID);
1750
1751         connection_added_signal(provider);
1752
1753         return 0;
1754 }
1755
1756 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
1757 {
1758         DBusMessageIter entry;
1759         GHashTableIter hash;
1760         gpointer value, key;
1761
1762         g_hash_table_iter_init(&hash, provider_hash);
1763
1764         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1765                 struct vpn_provider *provider = value;
1766
1767                 DBG("path %s", provider->path);
1768
1769                 if (provider->identifier == NULL)
1770                         continue;
1771
1772                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
1773                                 NULL, &entry);
1774                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
1775                                 &provider->path);
1776                 append_properties(&entry, provider);
1777                 dbus_message_iter_close_container(iter, &entry);
1778         }
1779 }
1780
1781 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
1782 {
1783         DBusMessage *reply;
1784
1785         DBG("");
1786
1787         reply = dbus_message_new_method_return(msg);
1788         if (reply == NULL)
1789                 return NULL;
1790
1791         __connman_dbus_append_objpath_dict_array(reply,
1792                         append_connection_structs, NULL);
1793
1794         return reply;
1795 }
1796
1797 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
1798 {
1799         if (provider == NULL)
1800                 return NULL;
1801
1802         return provider->identifier;
1803 }
1804
1805 int vpn_provider_set_string(struct vpn_provider *provider,
1806                                         const char *key, const char *value)
1807 {
1808         DBG("provider %p key %s value %s", provider, key, value);
1809
1810         if (g_str_equal(key, "Type") == TRUE) {
1811                 g_free(provider->type);
1812                 provider->type = g_strdup(value);
1813         } else if (g_str_equal(key, "Name") == TRUE) {
1814                 g_free(provider->name);
1815                 provider->name = g_strdup(value);
1816         } else if (g_str_equal(key, "Host") == TRUE) {
1817                 g_free(provider->host);
1818                 provider->host = g_strdup(value);
1819         } else if (g_str_equal(key, "VPN.Domain") == TRUE) {
1820                 g_free(provider->domain);
1821                 provider->domain = g_strdup(value);
1822         } else
1823                 g_hash_table_replace(provider->setting_strings,
1824                                 g_strdup(key), g_strdup(value));
1825         return 0;
1826 }
1827
1828 const char *vpn_provider_get_string(struct vpn_provider *provider,
1829                                                         const char *key)
1830 {
1831         DBG("provider %p key %s", provider, key);
1832
1833         if (g_str_equal(key, "Type") == TRUE)
1834                 return provider->type;
1835         else if (g_str_equal(key, "Name") == TRUE)
1836                 return provider->name;
1837         else if (g_str_equal(key, "Host") == TRUE)
1838                 return provider->host;
1839         else if (g_str_equal(key, "HostIP") == TRUE) {
1840                 if (provider->host_ip == NULL ||
1841                                 provider->host_ip[0] == NULL)
1842                         return provider->host;
1843                 else
1844                         return provider->host_ip[0];
1845         } else if (g_str_equal(key, "VPN.Domain") == TRUE)
1846                 return provider->domain;
1847
1848         return g_hash_table_lookup(provider->setting_strings, key);
1849 }
1850
1851 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
1852 {
1853         if (provider == NULL)
1854                 return FALSE;
1855
1856         if (provider->user_routes != NULL &&
1857                         g_hash_table_size(provider->user_routes) > 0)
1858                 return TRUE;
1859
1860         if (provider->routes != NULL &&
1861                         g_hash_table_size(provider->routes) > 0)
1862                 return TRUE;
1863
1864         return FALSE;
1865 }
1866
1867 void *vpn_provider_get_data(struct vpn_provider *provider)
1868 {
1869         return provider->driver_data;
1870 }
1871
1872 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
1873 {
1874         provider->driver_data = data;
1875 }
1876
1877 void vpn_provider_set_index(struct vpn_provider *provider, int index)
1878 {
1879         DBG("index %d provider %p", index, provider);
1880
1881         if (provider->ipconfig_ipv4 == NULL) {
1882                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
1883                                                                 AF_INET);
1884                 if (provider->ipconfig_ipv4 == NULL) {
1885                         DBG("Couldnt create ipconfig for IPv4");
1886                         goto done;
1887                 }
1888         }
1889
1890         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
1891
1892         if (provider->ipconfig_ipv6 == NULL) {
1893                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
1894                                                                 AF_INET6);
1895                 if (provider->ipconfig_ipv6 == NULL) {
1896                         DBG("Couldnt create ipconfig for IPv6");
1897                         goto done;
1898                 }
1899         }
1900
1901         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
1902
1903 done:
1904         provider->index = index;
1905 }
1906
1907 int vpn_provider_get_index(struct vpn_provider *provider)
1908 {
1909         return provider->index;
1910 }
1911
1912 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
1913                                         struct connman_ipaddress *ipaddress)
1914 {
1915         struct vpn_ipconfig *ipconfig = NULL;
1916
1917         switch (ipaddress->family) {
1918         case AF_INET:
1919                 ipconfig = provider->ipconfig_ipv4;
1920                 break;
1921         case AF_INET6:
1922                 ipconfig = provider->ipconfig_ipv6;
1923                 break;
1924         default:
1925                 break;
1926         }
1927
1928         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
1929                                                         ipaddress->family);
1930
1931         if (ipconfig == NULL)
1932                 return -EINVAL;
1933
1934         provider->family = ipaddress->family;
1935
1936         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
1937         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
1938         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
1939         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
1940         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
1941
1942         return 0;
1943 }
1944
1945 int vpn_provider_set_pac(struct vpn_provider *provider,
1946                                 const char *pac)
1947 {
1948         DBG("provider %p pac %s", provider, pac);
1949
1950         return 0;
1951 }
1952
1953
1954 int vpn_provider_set_domain(struct vpn_provider *provider,
1955                                         const char *domain)
1956 {
1957         DBG("provider %p domain %s", provider, domain);
1958
1959         g_free(provider->domain);
1960         provider->domain = g_strdup(domain);
1961
1962         return 0;
1963 }
1964
1965 int vpn_provider_set_nameservers(struct vpn_provider *provider,
1966                                         const char *nameservers)
1967 {
1968         DBG("provider %p nameservers %s", provider, nameservers);
1969
1970         g_strfreev(provider->nameservers);
1971         provider->nameservers = NULL;
1972
1973         if (nameservers == NULL)
1974                 return 0;
1975
1976         provider->nameservers = g_strsplit(nameservers, " ", 0);
1977
1978         return 0;
1979 }
1980
1981 enum provider_route_type {
1982         PROVIDER_ROUTE_TYPE_NONE = 0,
1983         PROVIDER_ROUTE_TYPE_MASK = 1,
1984         PROVIDER_ROUTE_TYPE_ADDR = 2,
1985         PROVIDER_ROUTE_TYPE_GW   = 3,
1986 };
1987
1988 static int route_env_parse(struct vpn_provider *provider, const char *key,
1989                                 int *family, unsigned long *idx,
1990                                 enum provider_route_type *type)
1991 {
1992         char *end;
1993         const char *start;
1994
1995         DBG("name %s", provider->name);
1996
1997         if (!strcmp(provider->type, "openvpn")) {
1998                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
1999                         start = key + strlen("route_network_");
2000                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2001                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2002                         start = key + strlen("route_netmask_");
2003                         *type = PROVIDER_ROUTE_TYPE_MASK;
2004                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2005                         start = key + strlen("route_gateway_");
2006                         *type = PROVIDER_ROUTE_TYPE_GW;
2007                 } else
2008                         return -EINVAL;
2009
2010                 *family = AF_INET;
2011                 *idx = g_ascii_strtoull(start, &end, 10);
2012
2013         } else if (!strcmp(provider->type, "openconnect")) {
2014                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2015                         *family = AF_INET;
2016                         start = key + strlen("CISCO_SPLIT_INC_");
2017                 } else if (g_str_has_prefix(key,
2018                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2019                         *family = AF_INET6;
2020                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2021                 } else
2022                         return -EINVAL;
2023
2024                 *idx = g_ascii_strtoull(start, &end, 10);
2025
2026                 if (strncmp(end, "_ADDR", 5) == 0)
2027                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2028                 else if (strncmp(end, "_MASK", 5) == 0)
2029                         *type = PROVIDER_ROUTE_TYPE_MASK;
2030                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2031                                 *family == AF_INET6) {
2032                         *type = PROVIDER_ROUTE_TYPE_MASK;
2033                 } else
2034                         return -EINVAL;
2035         }
2036
2037         return 0;
2038 }
2039
2040 int vpn_provider_append_route(struct vpn_provider *provider,
2041                                         const char *key, const char *value)
2042 {
2043         struct vpn_route *route;
2044         int ret, family = 0;
2045         unsigned long idx = 0;
2046         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2047
2048         DBG("key %s value %s", key, value);
2049
2050         ret = route_env_parse(provider, key, &family, &idx, &type);
2051         if (ret < 0)
2052                 return ret;
2053
2054         DBG("idx %lu family %d type %d", idx, family, type);
2055
2056         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2057         if (route == NULL) {
2058                 route = g_try_new0(struct vpn_route, 1);
2059                 if (route == NULL) {
2060                         connman_error("out of memory");
2061                         return -ENOMEM;
2062                 }
2063
2064                 route->family = family;
2065
2066                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2067                                                 route);
2068         }
2069
2070         switch (type) {
2071         case PROVIDER_ROUTE_TYPE_NONE:
2072                 break;
2073         case PROVIDER_ROUTE_TYPE_MASK:
2074                 route->netmask = g_strdup(value);
2075                 break;
2076         case PROVIDER_ROUTE_TYPE_ADDR:
2077                 route->network = g_strdup(value);
2078                 break;
2079         case PROVIDER_ROUTE_TYPE_GW:
2080                 route->gateway = g_strdup(value);
2081                 break;
2082         }
2083
2084         if (handle_routes == FALSE) {
2085                 if (route->netmask != NULL && route->gateway != NULL &&
2086                                                         route->network != NULL)
2087                         provider_schedule_changed(provider,
2088                                                 SERVER_ROUTES_CHANGED);
2089         }
2090
2091         return 0;
2092 }
2093
2094 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2095 {
2096         if (provider->driver == NULL)
2097                 return NULL;
2098
2099         return provider->driver->name;
2100 }
2101
2102 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2103 {
2104         return provider->identifier;
2105 }
2106
2107 static gint compare_priority(gconstpointer a, gconstpointer b)
2108 {
2109         return 0;
2110 }
2111
2112 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2113 {
2114         struct vpn_provider *provider = value;
2115
2116         if (provider->driver != NULL && provider->driver->remove)
2117                 provider->driver->remove(provider);
2118
2119         connection_unregister(provider);
2120 }
2121
2122 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2123 {
2124         DBG("driver %p name %s", driver, driver->name);
2125
2126         driver_list = g_slist_insert_sorted(driver_list, driver,
2127                                                         compare_priority);
2128         provider_create_all_from_type(driver->name);
2129         return 0;
2130 }
2131
2132 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2133 {
2134         GHashTableIter iter;
2135         gpointer value, key;
2136
2137         DBG("driver %p name %s", driver, driver->name);
2138
2139         driver_list = g_slist_remove(driver_list, driver);
2140
2141         g_hash_table_iter_init(&iter, provider_hash);
2142         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2143                 struct vpn_provider *provider = value;
2144
2145                 if (provider != NULL && provider->driver != NULL &&
2146                                 provider->driver->type == driver->type &&
2147                                 g_strcmp0(provider->driver->name,
2148                                                         driver->name) == 0) {
2149                         provider->driver = NULL;
2150                 }
2151         }
2152 }
2153
2154 static gboolean check_vpn_count(gpointer data)
2155 {
2156         if (configuration_count == 0) {
2157                 connman_info("No VPN configurations found, quitting.");
2158                 raise(SIGTERM);
2159         }
2160
2161         return FALSE;
2162 }
2163
2164 void __vpn_provider_check_connections(void)
2165 {
2166         /*
2167          * If we were started when there is no providers configured,
2168          * then just quit. This happens when connman starts and its
2169          * vpn plugin asks connman-vpnd if it has any connections
2170          * configured. If there are none, then we can stop the vpn
2171          * daemon.
2172          */
2173         g_timeout_add(1000, check_vpn_count, NULL);
2174 }
2175
2176 const char *vpn_provider_get_name(struct vpn_provider *provider)
2177 {
2178         return provider->name;
2179 }
2180
2181 const char *vpn_provider_get_host(struct vpn_provider *provider)
2182 {
2183         return provider->host;
2184 }
2185
2186 const char *vpn_provider_get_path(struct vpn_provider *provider)
2187 {
2188         return provider->path;
2189 }
2190
2191 static int agent_probe(struct connman_agent *agent)
2192 {
2193         DBG("agent %p", agent);
2194         return 0;
2195 }
2196
2197 static void agent_remove(struct connman_agent *agent)
2198 {
2199         DBG("agent %p", agent);
2200 }
2201
2202 static struct connman_agent_driver agent_driver = {
2203         .name           = "vpn",
2204         .interface      = VPN_AGENT_INTERFACE,
2205         .probe          = agent_probe,
2206         .remove         = agent_remove,
2207 };
2208
2209 int __vpn_provider_init(gboolean do_routes)
2210 {
2211         int err;
2212
2213         DBG("");
2214
2215         handle_routes = do_routes;
2216
2217         err = connman_agent_driver_register(&agent_driver);
2218         if (err < 0) {
2219                 connman_error("Cannot register agent driver for %s",
2220                                                 agent_driver.name);
2221                 return err;
2222         }
2223
2224         connection = connman_dbus_get_connection();
2225
2226         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2227                                                 NULL, unregister_provider);
2228
2229         return 0;
2230 }
2231
2232 void __vpn_provider_cleanup(void)
2233 {
2234         DBG("");
2235
2236         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2237
2238         g_hash_table_destroy(provider_hash);
2239         provider_hash = NULL;
2240
2241         connman_agent_driver_unregister(&agent_driver);
2242
2243         dbus_connection_unref(connection);
2244 }