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 void unregister_provider(gpointer data)
1440 {
1441         struct vpn_provider *provider = data;
1442
1443         configuration_count_del();
1444
1445         vpn_provider_unref(provider);
1446 }
1447
1448 static void provider_initialize(struct vpn_provider *provider)
1449 {
1450         DBG("provider %p", provider);
1451
1452         provider->index = 0;
1453         provider->fd = -1;
1454         provider->name = NULL;
1455         provider->type = NULL;
1456         provider->domain = NULL;
1457         provider->identifier = NULL;
1458         provider->user_networks = NULL;
1459         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1460                                         NULL, free_route);
1461         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1462                                         g_free, free_route);
1463         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1464                                                 g_str_equal, g_free, g_free);
1465 }
1466
1467 static struct vpn_provider *vpn_provider_new(void)
1468 {
1469         struct vpn_provider *provider;
1470
1471         provider = g_try_new0(struct vpn_provider, 1);
1472         if (provider == NULL)
1473                 return NULL;
1474
1475         provider->refcount = 1;
1476
1477         DBG("provider %p", provider);
1478         provider_initialize(provider);
1479
1480         return provider;
1481 }
1482
1483 static struct vpn_provider *vpn_provider_get(const char *identifier)
1484 {
1485         struct vpn_provider *provider;
1486
1487         provider = g_hash_table_lookup(provider_hash, identifier);
1488         if (provider != NULL)
1489                 return provider;
1490
1491         provider = vpn_provider_new();
1492         if (provider == NULL)
1493                 return NULL;
1494
1495         DBG("provider %p", provider);
1496
1497         provider->identifier = g_strdup(identifier);
1498
1499         g_hash_table_insert(provider_hash, provider->identifier, provider);
1500
1501         configuration_count_add();
1502
1503         return provider;
1504 }
1505
1506 static void provider_dbus_ident(char *ident)
1507 {
1508         int i, len = strlen(ident);
1509
1510         for (i = 0; i < len; i++) {
1511                 if (ident[i] >= '0' && ident[i] <= '9')
1512                         continue;
1513                 if (ident[i] >= 'a' && ident[i] <= 'z')
1514                         continue;
1515                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1516                         continue;
1517                 ident[i] = '_';
1518         }
1519 }
1520
1521 static int connection_unregister(struct vpn_provider *provider)
1522 {
1523         if (provider->path == NULL)
1524                 return -EALREADY;
1525
1526         g_dbus_unregister_interface(connection, provider->path,
1527                                 VPN_CONNECTION_INTERFACE);
1528
1529         g_free(provider->path);
1530         provider->path = NULL;
1531
1532         return 0;
1533 }
1534
1535 static int connection_register(struct vpn_provider *provider)
1536 {
1537         DBG("provider %p path %s", provider, provider->path);
1538
1539         if (provider->path != NULL)
1540                 return -EALREADY;
1541
1542         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1543                                                 provider->identifier);
1544
1545         g_dbus_register_interface(connection, provider->path,
1546                                 VPN_CONNECTION_INTERFACE,
1547                                 connection_methods, connection_signals,
1548                                 NULL, provider, NULL);
1549
1550         return 0;
1551 }
1552
1553 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1554                 const char *ident)
1555 {
1556         struct vpn_provider *provider;
1557
1558         if (keyfile == NULL || ident == NULL)
1559                 return NULL;
1560
1561         provider = vpn_provider_lookup(ident);
1562         if (provider == NULL) {
1563                 provider = vpn_provider_get(ident);
1564                 if (provider == NULL) {
1565                         DBG("can not create provider");
1566                         return NULL;
1567                 }
1568
1569                 provider_load_from_keyfile(provider, keyfile);
1570
1571                 if (provider->name == NULL || provider->host == NULL ||
1572                                 provider->domain == NULL) {
1573                         DBG("cannot get name, host or domain");
1574                         vpn_provider_unref(provider);
1575                         return NULL;
1576                 }
1577
1578                 if (provider_register(provider) == 0)
1579                         connection_register(provider);
1580         }
1581         return provider;
1582 }
1583
1584 static void provider_create_all_from_type(const char *provider_type)
1585 {
1586         unsigned int i;
1587         char **providers;
1588         char *id, *type;
1589         GKeyFile *keyfile;
1590
1591         DBG("provider type %s", provider_type);
1592
1593         providers = __connman_storage_get_providers();
1594
1595         for (i = 0; providers[i] != NULL; i+=1) {
1596
1597                 if (strncmp(providers[i], "provider_", 9) != 0)
1598                         continue;
1599
1600                 id = providers[i] + 9;
1601                 keyfile = __connman_storage_load_provider(id);
1602
1603                 if (keyfile == NULL)
1604                         continue;
1605
1606                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1607
1608                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1609
1610                 if (strcmp(provider_type, type) != 0) {
1611                         g_free(type);
1612                         g_key_file_free(keyfile);
1613                         continue;
1614                 }
1615
1616                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1617                         DBG("could not create provider");
1618
1619                 g_free(type);
1620                 g_key_file_free(keyfile);
1621         }
1622         g_strfreev(providers);
1623 }
1624
1625 int __vpn_provider_create(DBusMessage *msg)
1626 {
1627         struct vpn_provider *provider;
1628         DBusMessageIter iter, array;
1629         const char *type = NULL, *name = NULL;
1630         const char *host = NULL, *domain = NULL;
1631         GSList *networks = NULL;
1632         char *ident;
1633         int err;
1634
1635         dbus_message_iter_init(msg, &iter);
1636         dbus_message_iter_recurse(&iter, &array);
1637
1638         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1639                 DBusMessageIter entry, value;
1640                 const char *key;
1641
1642                 dbus_message_iter_recurse(&array, &entry);
1643                 dbus_message_iter_get_basic(&entry, &key);
1644
1645                 dbus_message_iter_next(&entry);
1646                 dbus_message_iter_recurse(&entry, &value);
1647
1648                 switch (dbus_message_iter_get_arg_type(&value)) {
1649                 case DBUS_TYPE_STRING:
1650                         if (g_str_equal(key, "Type") == TRUE)
1651                                 dbus_message_iter_get_basic(&value, &type);
1652                         else if (g_str_equal(key, "Name") == TRUE)
1653                                 dbus_message_iter_get_basic(&value, &name);
1654                         else if (g_str_equal(key, "Host") == TRUE)
1655                                 dbus_message_iter_get_basic(&value, &host);
1656                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
1657                                 dbus_message_iter_get_basic(&value, &domain);
1658                         break;
1659                 case DBUS_TYPE_ARRAY:
1660                         if (g_str_equal(key, "UserRoutes") == TRUE)
1661                                 networks = get_user_networks(&value);
1662                         break;
1663                 }
1664
1665                 dbus_message_iter_next(&array);
1666         }
1667
1668         if (host == NULL || domain == NULL)
1669                 return -EINVAL;
1670
1671         DBG("Type %s name %s networks %p", type, name, networks);
1672
1673         if (type == NULL || name == NULL)
1674                 return -EOPNOTSUPP;
1675
1676         ident = g_strdup_printf("%s_%s", host, domain);
1677         provider_dbus_ident(ident);
1678
1679         DBG("ident %s", ident);
1680
1681         provider = vpn_provider_lookup(ident);
1682         if (provider == NULL) {
1683                 provider = vpn_provider_get(ident);
1684                 if (provider == NULL) {
1685                         DBG("can not create provider");
1686                         g_free(ident);
1687                         return -EOPNOTSUPP;
1688                 }
1689
1690                 provider->host = g_strdup(host);
1691                 provider->domain = g_strdup(domain);
1692                 provider->name = g_strdup(name);
1693                 provider->type = g_strdup(type);
1694
1695                 if (provider_register(provider) == 0)
1696                         vpn_provider_load(provider);
1697
1698                 provider_resolv_host_addr(provider);
1699         }
1700
1701         if (networks != NULL) {
1702                 g_slist_free_full(provider->user_networks, free_route);
1703                 provider->user_networks = networks;
1704                 set_user_networks(provider, provider->user_networks);
1705         }
1706
1707         dbus_message_iter_init(msg, &iter);
1708         dbus_message_iter_recurse(&iter, &array);
1709
1710         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1711                 DBusMessageIter entry, value;
1712                 const char *key, *str;
1713
1714                 dbus_message_iter_recurse(&array, &entry);
1715                 dbus_message_iter_get_basic(&entry, &key);
1716
1717                 dbus_message_iter_next(&entry);
1718                 dbus_message_iter_recurse(&entry, &value);
1719
1720                 switch (dbus_message_iter_get_arg_type(&value)) {
1721                 case DBUS_TYPE_STRING:
1722                         dbus_message_iter_get_basic(&value, &str);
1723                         vpn_provider_set_string(provider, key, str);
1724                         break;
1725                 }
1726
1727                 dbus_message_iter_next(&array);
1728         }
1729
1730         g_free(ident);
1731
1732         vpn_provider_save(provider);
1733
1734         err = provider_register(provider);
1735         if (err != 0 && err != -EALREADY)
1736                 return err;
1737
1738         connection_register(provider);
1739
1740         DBG("provider %p index %d path %s", provider, provider->index,
1741                                                         provider->path);
1742
1743         g_dbus_send_reply(connection, msg,
1744                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1745                                 DBUS_TYPE_INVALID);
1746
1747         connection_added_signal(provider);
1748
1749         return 0;
1750 }
1751
1752 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
1753 {
1754         DBusMessageIter entry;
1755         GHashTableIter hash;
1756         gpointer value, key;
1757
1758         g_hash_table_iter_init(&hash, provider_hash);
1759
1760         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1761                 struct vpn_provider *provider = value;
1762
1763                 DBG("path %s", provider->path);
1764
1765                 if (provider->identifier == NULL)
1766                         continue;
1767
1768                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
1769                                 NULL, &entry);
1770                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
1771                                 &provider->path);
1772                 append_properties(&entry, provider);
1773                 dbus_message_iter_close_container(iter, &entry);
1774         }
1775 }
1776
1777 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
1778 {
1779         DBusMessage *reply;
1780
1781         DBG("");
1782
1783         reply = dbus_message_new_method_return(msg);
1784         if (reply == NULL)
1785                 return NULL;
1786
1787         __connman_dbus_append_objpath_dict_array(reply,
1788                         append_connection_structs, NULL);
1789
1790         return reply;
1791 }
1792
1793 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
1794 {
1795         if (provider == NULL)
1796                 return NULL;
1797
1798         return provider->identifier;
1799 }
1800
1801 int vpn_provider_set_string(struct vpn_provider *provider,
1802                                         const char *key, const char *value)
1803 {
1804         DBG("provider %p key %s value %s", provider, key, value);
1805
1806         if (g_str_equal(key, "Type") == TRUE) {
1807                 g_free(provider->type);
1808                 provider->type = g_strdup(value);
1809         } else if (g_str_equal(key, "Name") == TRUE) {
1810                 g_free(provider->name);
1811                 provider->name = g_strdup(value);
1812         } else if (g_str_equal(key, "Host") == TRUE) {
1813                 g_free(provider->host);
1814                 provider->host = g_strdup(value);
1815         } else if (g_str_equal(key, "VPN.Domain") == TRUE) {
1816                 g_free(provider->domain);
1817                 provider->domain = g_strdup(value);
1818         } else
1819                 g_hash_table_replace(provider->setting_strings,
1820                                 g_strdup(key), g_strdup(value));
1821         return 0;
1822 }
1823
1824 const char *vpn_provider_get_string(struct vpn_provider *provider,
1825                                                         const char *key)
1826 {
1827         DBG("provider %p key %s", provider, key);
1828
1829         if (g_str_equal(key, "Type") == TRUE)
1830                 return provider->type;
1831         else if (g_str_equal(key, "Name") == TRUE)
1832                 return provider->name;
1833         else if (g_str_equal(key, "Host") == TRUE)
1834                 return provider->host;
1835         else if (g_str_equal(key, "HostIP") == TRUE) {
1836                 if (provider->host_ip == NULL ||
1837                                 provider->host_ip[0] == NULL)
1838                         return provider->host;
1839                 else
1840                         return provider->host_ip[0];
1841         } else if (g_str_equal(key, "VPN.Domain") == TRUE)
1842                 return provider->domain;
1843
1844         return g_hash_table_lookup(provider->setting_strings, key);
1845 }
1846
1847 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
1848 {
1849         if (provider == NULL)
1850                 return FALSE;
1851
1852         if (provider->user_routes != NULL &&
1853                         g_hash_table_size(provider->user_routes) > 0)
1854                 return TRUE;
1855
1856         if (provider->routes != NULL &&
1857                         g_hash_table_size(provider->routes) > 0)
1858                 return TRUE;
1859
1860         return FALSE;
1861 }
1862
1863 void *vpn_provider_get_data(struct vpn_provider *provider)
1864 {
1865         return provider->driver_data;
1866 }
1867
1868 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
1869 {
1870         provider->driver_data = data;
1871 }
1872
1873 void vpn_provider_set_index(struct vpn_provider *provider, int index)
1874 {
1875         DBG("index %d provider %p", index, provider);
1876
1877         if (provider->ipconfig_ipv4 == NULL) {
1878                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
1879                                                                 AF_INET);
1880                 if (provider->ipconfig_ipv4 == NULL) {
1881                         DBG("Couldnt create ipconfig for IPv4");
1882                         goto done;
1883                 }
1884         }
1885
1886         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
1887
1888         if (provider->ipconfig_ipv6 == NULL) {
1889                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
1890                                                                 AF_INET6);
1891                 if (provider->ipconfig_ipv6 == NULL) {
1892                         DBG("Couldnt create ipconfig for IPv6");
1893                         goto done;
1894                 }
1895         }
1896
1897         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
1898
1899 done:
1900         provider->index = index;
1901 }
1902
1903 int vpn_provider_get_index(struct vpn_provider *provider)
1904 {
1905         return provider->index;
1906 }
1907
1908 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
1909                                         struct connman_ipaddress *ipaddress)
1910 {
1911         struct vpn_ipconfig *ipconfig = NULL;
1912
1913         switch (ipaddress->family) {
1914         case AF_INET:
1915                 ipconfig = provider->ipconfig_ipv4;
1916                 break;
1917         case AF_INET6:
1918                 ipconfig = provider->ipconfig_ipv6;
1919                 break;
1920         default:
1921                 break;
1922         }
1923
1924         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
1925                                                         ipaddress->family);
1926
1927         if (ipconfig == NULL)
1928                 return -EINVAL;
1929
1930         provider->family = ipaddress->family;
1931
1932         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
1933         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
1934         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
1935         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
1936         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
1937
1938         return 0;
1939 }
1940
1941 int vpn_provider_set_pac(struct vpn_provider *provider,
1942                                 const char *pac)
1943 {
1944         DBG("provider %p pac %s", provider, pac);
1945
1946         return 0;
1947 }
1948
1949
1950 int vpn_provider_set_domain(struct vpn_provider *provider,
1951                                         const char *domain)
1952 {
1953         DBG("provider %p domain %s", provider, domain);
1954
1955         g_free(provider->domain);
1956         provider->domain = g_strdup(domain);
1957
1958         return 0;
1959 }
1960
1961 int vpn_provider_set_nameservers(struct vpn_provider *provider,
1962                                         const char *nameservers)
1963 {
1964         DBG("provider %p nameservers %s", provider, nameservers);
1965
1966         g_strfreev(provider->nameservers);
1967         provider->nameservers = NULL;
1968
1969         if (nameservers == NULL)
1970                 return 0;
1971
1972         provider->nameservers = g_strsplit(nameservers, " ", 0);
1973
1974         return 0;
1975 }
1976
1977 enum provider_route_type {
1978         PROVIDER_ROUTE_TYPE_NONE = 0,
1979         PROVIDER_ROUTE_TYPE_MASK = 1,
1980         PROVIDER_ROUTE_TYPE_ADDR = 2,
1981         PROVIDER_ROUTE_TYPE_GW   = 3,
1982 };
1983
1984 static int route_env_parse(struct vpn_provider *provider, const char *key,
1985                                 int *family, unsigned long *idx,
1986                                 enum provider_route_type *type)
1987 {
1988         char *end;
1989         const char *start;
1990
1991         DBG("name %s", provider->name);
1992
1993         if (!strcmp(provider->type, "openvpn")) {
1994                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
1995                         start = key + strlen("route_network_");
1996                         *type = PROVIDER_ROUTE_TYPE_ADDR;
1997                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
1998                         start = key + strlen("route_netmask_");
1999                         *type = PROVIDER_ROUTE_TYPE_MASK;
2000                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2001                         start = key + strlen("route_gateway_");
2002                         *type = PROVIDER_ROUTE_TYPE_GW;
2003                 } else
2004                         return -EINVAL;
2005
2006                 *family = AF_INET;
2007                 *idx = g_ascii_strtoull(start, &end, 10);
2008
2009         } else if (!strcmp(provider->type, "openconnect")) {
2010                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2011                         *family = AF_INET;
2012                         start = key + strlen("CISCO_SPLIT_INC_");
2013                 } else if (g_str_has_prefix(key,
2014                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2015                         *family = AF_INET6;
2016                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2017                 } else
2018                         return -EINVAL;
2019
2020                 *idx = g_ascii_strtoull(start, &end, 10);
2021
2022                 if (strncmp(end, "_ADDR", 5) == 0)
2023                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2024                 else if (strncmp(end, "_MASK", 5) == 0)
2025                         *type = PROVIDER_ROUTE_TYPE_MASK;
2026                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2027                                 *family == AF_INET6) {
2028                         *type = PROVIDER_ROUTE_TYPE_MASK;
2029                 } else
2030                         return -EINVAL;
2031         }
2032
2033         return 0;
2034 }
2035
2036 int vpn_provider_append_route(struct vpn_provider *provider,
2037                                         const char *key, const char *value)
2038 {
2039         struct vpn_route *route;
2040         int ret, family = 0;
2041         unsigned long idx = 0;
2042         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2043
2044         DBG("key %s value %s", key, value);
2045
2046         ret = route_env_parse(provider, key, &family, &idx, &type);
2047         if (ret < 0)
2048                 return ret;
2049
2050         DBG("idx %lu family %d type %d", idx, family, type);
2051
2052         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2053         if (route == NULL) {
2054                 route = g_try_new0(struct vpn_route, 1);
2055                 if (route == NULL) {
2056                         connman_error("out of memory");
2057                         return -ENOMEM;
2058                 }
2059
2060                 route->family = family;
2061
2062                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2063                                                 route);
2064         }
2065
2066         switch (type) {
2067         case PROVIDER_ROUTE_TYPE_NONE:
2068                 break;
2069         case PROVIDER_ROUTE_TYPE_MASK:
2070                 route->netmask = g_strdup(value);
2071                 break;
2072         case PROVIDER_ROUTE_TYPE_ADDR:
2073                 route->network = g_strdup(value);
2074                 break;
2075         case PROVIDER_ROUTE_TYPE_GW:
2076                 route->gateway = g_strdup(value);
2077                 break;
2078         }
2079
2080         if (handle_routes == FALSE) {
2081                 if (route->netmask != NULL && route->gateway != NULL &&
2082                                                         route->network != NULL)
2083                         provider_schedule_changed(provider,
2084                                                 SERVER_ROUTES_CHANGED);
2085         }
2086
2087         return 0;
2088 }
2089
2090 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2091 {
2092         if (provider->driver == NULL)
2093                 return NULL;
2094
2095         return provider->driver->name;
2096 }
2097
2098 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2099 {
2100         return provider->identifier;
2101 }
2102
2103 static gint compare_priority(gconstpointer a, gconstpointer b)
2104 {
2105         return 0;
2106 }
2107
2108 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2109 {
2110         struct vpn_provider *provider = value;
2111
2112         if (provider->driver != NULL && provider->driver->remove)
2113                 provider->driver->remove(provider);
2114
2115         connection_unregister(provider);
2116 }
2117
2118 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2119 {
2120         DBG("driver %p name %s", driver, driver->name);
2121
2122         driver_list = g_slist_insert_sorted(driver_list, driver,
2123                                                         compare_priority);
2124         provider_create_all_from_type(driver->name);
2125         return 0;
2126 }
2127
2128 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2129 {
2130         GHashTableIter iter;
2131         gpointer value, key;
2132
2133         DBG("driver %p name %s", driver, driver->name);
2134
2135         driver_list = g_slist_remove(driver_list, driver);
2136
2137         g_hash_table_iter_init(&iter, provider_hash);
2138         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2139                 struct vpn_provider *provider = value;
2140
2141                 if (provider != NULL && provider->driver != NULL &&
2142                                 provider->driver->type == driver->type &&
2143                                 g_strcmp0(provider->driver->name,
2144                                                         driver->name) == 0) {
2145                         provider->driver = NULL;
2146                 }
2147         }
2148 }
2149
2150 static gboolean check_vpn_count(gpointer data)
2151 {
2152         if (configuration_count == 0) {
2153                 connman_info("No VPN configurations found, quitting.");
2154                 raise(SIGTERM);
2155         }
2156
2157         return FALSE;
2158 }
2159
2160 void __vpn_provider_check_connections(void)
2161 {
2162         /*
2163          * If we were started when there is no providers configured,
2164          * then just quit. This happens when connman starts and its
2165          * vpn plugin asks connman-vpnd if it has any connections
2166          * configured. If there are none, then we can stop the vpn
2167          * daemon.
2168          */
2169         g_timeout_add(1000, check_vpn_count, NULL);
2170 }
2171
2172 const char *vpn_provider_get_name(struct vpn_provider *provider)
2173 {
2174         return provider->name;
2175 }
2176
2177 const char *vpn_provider_get_host(struct vpn_provider *provider)
2178 {
2179         return provider->host;
2180 }
2181
2182 const char *vpn_provider_get_path(struct vpn_provider *provider)
2183 {
2184         return provider->path;
2185 }
2186
2187 static int agent_probe(struct connman_agent *agent)
2188 {
2189         DBG("agent %p", agent);
2190         return 0;
2191 }
2192
2193 static void agent_remove(struct connman_agent *agent)
2194 {
2195         DBG("agent %p", agent);
2196 }
2197
2198 static struct connman_agent_driver agent_driver = {
2199         .name           = "vpn",
2200         .interface      = VPN_AGENT_INTERFACE,
2201         .probe          = agent_probe,
2202         .remove         = agent_remove,
2203 };
2204
2205 int __vpn_provider_init(gboolean do_routes)
2206 {
2207         int err;
2208
2209         DBG("");
2210
2211         handle_routes = do_routes;
2212
2213         err = connman_agent_driver_register(&agent_driver);
2214         if (err < 0) {
2215                 connman_error("Cannot register agent driver for %s",
2216                                                 agent_driver.name);
2217                 return err;
2218         }
2219
2220         connection = connman_dbus_get_connection();
2221
2222         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2223                                                 NULL, unregister_provider);
2224
2225         return 0;
2226 }
2227
2228 void __vpn_provider_cleanup(void)
2229 {
2230         DBG("");
2231
2232         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2233
2234         g_hash_table_destroy(provider_hash);
2235         provider_hash = NULL;
2236
2237         connman_agent_driver_unregister(&agent_driver);
2238
2239         dbus_connection_unref(connection);
2240 }