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/vpn-dbus.h"
  37 #include "vpn-provider.h"
  38 #include "vpn.h"
  39
  40 enum {
  41         USER_ROUTES_CHANGED = 0x01,
  42         SERVER_ROUTES_CHANGED = 0x02,
  43 };
  44
  45 static DBusConnection *connection;
  46 static GHashTable *provider_hash;
  47 static GSList *driver_list;
  48 static int configuration_count;
  49 static gboolean handle_routes;
  50
  51 struct vpn_route {
  52         int family;
  53         char *network;
  54         char *netmask;
  55         char *gateway;
  56 };
  57
  58 struct vpn_provider {
  59         int refcount;
  60         int index;
  61         int fd;
  62         enum vpn_provider_state state;
  63         char *path;
  64         char *identifier;
  65         char *name;
  66         char *type;
  67         char *host;
  68         char *domain;
  69         int family;
  70         GHashTable *routes;
  71         struct vpn_provider_driver *driver;
  72         void *driver_data;
  73         GHashTable *setting_strings;
  74         GHashTable *user_routes;
  75         GSList *user_networks;
  76         GResolv *resolv;
  77         char **host_ip;
  78         DBusMessage *pending_msg;
  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);
 445         if (err < 0)
 446                 return __connman_error_failed(msg, -err);
 447
 448         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 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         g_strfreev(provider->host_ip);
 921         g_free(provider);
 922 }
 923
 924 void vpn_provider_unref_debug(struct vpn_provider *provider,
 925                                 const char *file, int line, const char *caller)
 926 {
 927         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 928                 file, line, caller);
 929
 930         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
 931                 return;
 932
 933         provider_remove(provider);
 934
 935         provider_destruct(provider);
 936 }
 937
 938 static void configuration_count_add(void)
 939 {
 940         DBG("count %d", configuration_count + 1);
 941
 942         __sync_fetch_and_add(&configuration_count, 1);
 943 }
 944
 945 static void configuration_count_del(void)
 946 {
 947         DBG("count %d", configuration_count - 1);
 948
 949         if (__sync_fetch_and_sub(&configuration_count, 1) != 1)
 950                 return;
 951
 952         raise(SIGTERM);
 953 }
 954
 955 int __vpn_provider_disconnect(struct vpn_provider *provider)
 956 {
 957         int err;
 958
 959         DBG("provider %p", provider);
 960
 961         if (provider->driver != NULL && provider->driver->disconnect != NULL)
 962                 err = provider->driver->disconnect(provider);
 963         else
 964                 return -EOPNOTSUPP;
 965
 966         if (err < 0) {
 967                 if (err != -EINPROGRESS)
 968                         return err;
 969
 970                 return -EINPROGRESS;
 971         }
 972
 973         return 0;
 974 }
 975
 976 int __vpn_provider_connect(struct vpn_provider *provider)
 977 {
 978         int err;
 979
 980         DBG("provider %p", provider);
 981
 982         if (provider->driver != NULL && provider->driver->connect != NULL)
 983                 err = provider->driver->connect(provider);
 984         else
 985                 return -EOPNOTSUPP;
 986
 987         return err;
 988 }
 989
 990 int __vpn_provider_remove(const char *path)
 991 {
 992         struct vpn_provider *provider;
 993
 994         DBG("path %s", path);
 995
 996         provider = vpn_provider_lookup(path);
 997         if (provider != NULL) {
 998                 DBG("Removing VPN %s", provider->identifier);
 999
1000                 provider_unregister(provider);
1001                 g_hash_table_remove(provider_hash, provider->identifier);
1002                 return 0;
1003         }
1004
1005         return -ENXIO;
1006 }
1007
1008 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1009 {
1010         struct vpn_provider *provider = user_data;
1011         const char *address, *gateway, *peer;
1012
1013         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1014         if (address != NULL) {
1015                 in_addr_t addr;
1016                 struct in_addr netmask;
1017                 char *mask;
1018                 int prefixlen;
1019
1020                 prefixlen = __vpn_ipconfig_get_prefixlen(
1021                                                 provider->ipconfig_ipv4);
1022
1023                 addr = 0xffffffff << (32 - prefixlen);
1024                 netmask.s_addr = htonl(addr);
1025                 mask = inet_ntoa(netmask);
1026
1027                 connman_dbus_dict_append_basic(iter, "Address",
1028                                                 DBUS_TYPE_STRING, &address);
1029
1030                 connman_dbus_dict_append_basic(iter, "Netmask",
1031                                                 DBUS_TYPE_STRING, &mask);
1032         }
1033
1034         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1035         if (gateway != NULL)
1036                 connman_dbus_dict_append_basic(iter, "Gateway",
1037                                                 DBUS_TYPE_STRING, &gateway);
1038
1039         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1040         if (peer != NULL)
1041                 connman_dbus_dict_append_basic(iter, "Peer",
1042                                                 DBUS_TYPE_STRING, &peer);
1043 }
1044
1045 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1046 {
1047         struct vpn_provider *provider = user_data;
1048         const char *address, *gateway, *peer;
1049
1050         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1051         if (address != NULL) {
1052                 unsigned char prefixlen;
1053
1054                 connman_dbus_dict_append_basic(iter, "Address",
1055                                                 DBUS_TYPE_STRING, &address);
1056
1057                 prefixlen = __vpn_ipconfig_get_prefixlen(
1058                                                 provider->ipconfig_ipv6);
1059
1060                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1061                                                 DBUS_TYPE_BYTE, &prefixlen);
1062         }
1063
1064         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1065         if (gateway != NULL)
1066                 connman_dbus_dict_append_basic(iter, "Gateway",
1067                                                 DBUS_TYPE_STRING, &gateway);
1068
1069         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1070         if (peer != NULL)
1071                 connman_dbus_dict_append_basic(iter, "Peer",
1072                                                 DBUS_TYPE_STRING, &peer);
1073 }
1074
1075 static const char *state2string(enum vpn_provider_state state)
1076 {
1077         switch (state) {
1078         case VPN_PROVIDER_STATE_UNKNOWN:
1079                 break;
1080         case VPN_PROVIDER_STATE_IDLE:
1081                 return "idle";
1082         case VPN_PROVIDER_STATE_CONNECT:
1083                 return "configuration";
1084         case VPN_PROVIDER_STATE_READY:
1085                 return "ready";
1086         case VPN_PROVIDER_STATE_DISCONNECT:
1087                 return "disconnect";
1088         case VPN_PROVIDER_STATE_FAILURE:
1089                 return "failure";
1090         }
1091
1092         return NULL;
1093 }
1094
1095 static int provider_indicate_state(struct vpn_provider *provider,
1096                                 enum vpn_provider_state state)
1097 {
1098         const char *str;
1099
1100         DBG("provider %p state %d", provider, state);
1101
1102         str = state2string(state);
1103         if (str == NULL)
1104                 return -EINVAL;
1105
1106         provider->state = state;
1107
1108         if (state == VPN_PROVIDER_STATE_READY) {
1109                 connman_dbus_property_changed_basic(provider->path,
1110                                         VPN_CONNECTION_INTERFACE, "Index",
1111                                         DBUS_TYPE_INT32, &provider->index);
1112
1113                 if (provider->family == AF_INET)
1114                         connman_dbus_property_changed_dict(provider->path,
1115                                         VPN_CONNECTION_INTERFACE, "IPv4",
1116                                         append_ipv4, provider);
1117                 else if (provider->family == AF_INET6)
1118                         connman_dbus_property_changed_dict(provider->path,
1119                                         VPN_CONNECTION_INTERFACE, "IPv6",
1120                                         append_ipv6, provider);
1121         }
1122
1123         connman_dbus_property_changed_basic(provider->path,
1124                                         VPN_CONNECTION_INTERFACE, "State",
1125                                         DBUS_TYPE_STRING, &str);
1126         return 0;
1127 }
1128
1129 static void append_nameservers(DBusMessageIter *iter, char **servers)
1130 {
1131         int i;
1132
1133         DBG("%p", servers);
1134
1135         for (i = 0; servers[i] != NULL; i++) {
1136                 DBG("servers[%d] %s", i, servers[i]);
1137                 dbus_message_iter_append_basic(iter,
1138                                         DBUS_TYPE_STRING, &servers[i]);
1139         }
1140 }
1141
1142 static void append_dns(DBusMessageIter *iter, void *user_data)
1143 {
1144         struct vpn_provider *provider = user_data;
1145
1146         if (provider->nameservers != NULL)
1147                 append_nameservers(iter, provider->nameservers);
1148 }
1149
1150 static void append_state(DBusMessageIter *iter,
1151                                         struct vpn_provider *provider)
1152 {
1153         char *str;
1154
1155         switch (provider->state) {
1156         case VPN_PROVIDER_STATE_UNKNOWN:
1157         case VPN_PROVIDER_STATE_IDLE:
1158                 str = "idle";
1159                 break;
1160         case VPN_PROVIDER_STATE_CONNECT:
1161                 str = "configuration";
1162                 break;
1163         case VPN_PROVIDER_STATE_READY:
1164                 str = "ready";
1165                 break;
1166         case VPN_PROVIDER_STATE_DISCONNECT:
1167                 str = "disconnect";
1168                 break;
1169         case VPN_PROVIDER_STATE_FAILURE:
1170                 str = "failure";
1171                 break;
1172         }
1173
1174         connman_dbus_dict_append_basic(iter, "State",
1175                                 DBUS_TYPE_STRING, &str);
1176 }
1177
1178 static void append_properties(DBusMessageIter *iter,
1179                                         struct vpn_provider *provider)
1180 {
1181         DBusMessageIter dict;
1182
1183         connman_dbus_dict_open(iter, &dict);
1184
1185         append_state(&dict, provider);
1186
1187         if (provider->type != NULL)
1188                 connman_dbus_dict_append_basic(&dict, "Type",
1189                                         DBUS_TYPE_STRING, &provider->type);
1190
1191         if (provider->name != NULL)
1192                 connman_dbus_dict_append_basic(&dict, "Name",
1193                                         DBUS_TYPE_STRING, &provider->name);
1194
1195         if (provider->host != NULL)
1196                 connman_dbus_dict_append_basic(&dict, "Host",
1197                                         DBUS_TYPE_STRING, &provider->host);
1198         if (provider->index >= 0)
1199                 connman_dbus_dict_append_basic(&dict, "Index",
1200                                         DBUS_TYPE_INT32, &provider->index);
1201         if (provider->domain != NULL)
1202                 connman_dbus_dict_append_basic(&dict, "Domain",
1203                                         DBUS_TYPE_STRING, &provider->domain);
1204
1205         if (provider->family == AF_INET)
1206                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1207                                                 provider);
1208         else if (provider->family == AF_INET6)
1209                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1210                                                 provider);
1211
1212         connman_dbus_dict_append_array(&dict, "Nameservers",
1213                                 DBUS_TYPE_STRING, append_dns, provider);
1214
1215         connman_dbus_dict_append_array(&dict, "UserRoutes",
1216                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1217                                 provider->user_routes);
1218
1219         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1220                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1221                                 provider->routes);
1222
1223         connman_dbus_dict_close(iter, &dict);
1224 }
1225
1226 static connman_bool_t check_host(char **hosts, char *host)
1227 {
1228         int i;
1229
1230         if (hosts == NULL)
1231                 return FALSE;
1232
1233         for (i = 0; hosts[i] != NULL; i++) {
1234                 if (g_strcmp0(hosts[i], host) == 0)
1235                         return TRUE;
1236         }
1237
1238         return FALSE;
1239 }
1240
1241 static void provider_append_routes(gpointer key, gpointer value,
1242                                         gpointer user_data)
1243 {
1244         struct vpn_route *route = value;
1245         struct vpn_provider *provider = user_data;
1246         int index = provider->index;
1247
1248         if (handle_routes == FALSE)
1249                 return;
1250
1251         /*
1252          * If the VPN administrator/user has given a route to
1253          * VPN server, then we must discard that because the
1254          * server cannot be contacted via VPN tunnel.
1255          */
1256         if (check_host(provider->host_ip, route->network) == TRUE) {
1257                 DBG("Discarding VPN route to %s via %s at index %d",
1258                         route->network, route->gateway, index);
1259                 return;
1260         }
1261
1262         if (route->family == AF_INET6) {
1263                 unsigned char prefix_len = atoi(route->netmask);
1264
1265                 connman_inet_add_ipv6_network_route(index, route->network,
1266                                                         route->gateway,
1267                                                         prefix_len);
1268         } else {
1269                 connman_inet_add_network_route(index, route->network,
1270                                                 route->gateway,
1271                                                 route->netmask);
1272         }
1273 }
1274
1275 static int set_connected(struct vpn_provider *provider,
1276                                         connman_bool_t connected)
1277 {
1278         struct vpn_ipconfig *ipconfig;
1279
1280         DBG("provider %p id %s connected %d", provider,
1281                                         provider->identifier, connected);
1282
1283         if (connected == TRUE) {
1284                 if (provider->family == AF_INET6)
1285                         ipconfig = provider->ipconfig_ipv6;
1286                 else
1287                         ipconfig = provider->ipconfig_ipv4;
1288
1289                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1290
1291                 if (handle_routes == TRUE)
1292                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1293
1294                 provider_indicate_state(provider,
1295                                         VPN_PROVIDER_STATE_READY);
1296
1297                 g_hash_table_foreach(provider->routes, provider_append_routes,
1298                                         provider);
1299
1300                 g_hash_table_foreach(provider->user_routes,
1301                                         provider_append_routes, provider);
1302
1303         } else {
1304                 provider_indicate_state(provider,
1305                                         VPN_PROVIDER_STATE_DISCONNECT);
1306
1307                 provider_indicate_state(provider,
1308                                         VPN_PROVIDER_STATE_IDLE);
1309         }
1310
1311         return 0;
1312 }
1313
1314 int vpn_provider_set_state(struct vpn_provider *provider,
1315                                         enum vpn_provider_state state)
1316 {
1317         if (provider == NULL)
1318                 return -EINVAL;
1319
1320         switch (state) {
1321         case VPN_PROVIDER_STATE_UNKNOWN:
1322                 return -EINVAL;
1323         case VPN_PROVIDER_STATE_IDLE:
1324                 return set_connected(provider, FALSE);
1325         case VPN_PROVIDER_STATE_CONNECT:
1326                 return provider_indicate_state(provider, state);
1327         case VPN_PROVIDER_STATE_READY:
1328                 return set_connected(provider, TRUE);
1329         case VPN_PROVIDER_STATE_DISCONNECT:
1330                 return provider_indicate_state(provider, state);
1331         case VPN_PROVIDER_STATE_FAILURE:
1332                 return provider_indicate_state(provider, state);
1333         }
1334         return -EINVAL;
1335 }
1336
1337 int vpn_provider_indicate_error(struct vpn_provider *provider,
1338                                         enum vpn_provider_error error)
1339 {
1340         DBG("provider %p id %s error %d", provider, provider->identifier,
1341                                                                         error);
1342
1343         switch (error) {
1344         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1345                 break;
1346         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1347                 break;
1348         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1349                 break;
1350         default:
1351                 break;
1352         }
1353
1354         return 0;
1355 }
1356
1357 static void unregister_provider(gpointer data)
1358 {
1359         struct vpn_provider *provider = data;
1360
1361         configuration_count_del();
1362
1363         vpn_provider_unref(provider);
1364 }
1365
1366 static void provider_initialize(struct vpn_provider *provider)
1367 {
1368         DBG("provider %p", provider);
1369
1370         provider->index = 0;
1371         provider->fd = -1;
1372         provider->name = NULL;
1373         provider->type = NULL;
1374         provider->domain = NULL;
1375         provider->identifier = NULL;
1376         provider->user_networks = NULL;
1377         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1378                                         NULL, free_route);
1379         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1380                                         g_free, free_route);
1381         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1382                                                 g_str_equal, g_free, g_free);
1383 }
1384
1385 static struct vpn_provider *vpn_provider_new(void)
1386 {
1387         struct vpn_provider *provider;
1388
1389         provider = g_try_new0(struct vpn_provider, 1);
1390         if (provider == NULL)
1391                 return NULL;
1392
1393         provider->refcount = 1;
1394
1395         DBG("provider %p", provider);
1396         provider_initialize(provider);
1397
1398         return provider;
1399 }
1400
1401 static struct vpn_provider *vpn_provider_get(const char *identifier)
1402 {
1403         struct vpn_provider *provider;
1404
1405         provider = g_hash_table_lookup(provider_hash, identifier);
1406         if (provider != NULL)
1407                 return provider;
1408
1409         provider = vpn_provider_new();
1410         if (provider == NULL)
1411                 return NULL;
1412
1413         DBG("provider %p", provider);
1414
1415         provider->identifier = g_strdup(identifier);
1416
1417         g_hash_table_insert(provider_hash, provider->identifier, provider);
1418
1419         configuration_count_add();
1420
1421         return provider;
1422 }
1423
1424 static void provider_dbus_ident(char *ident)
1425 {
1426         int i, len = strlen(ident);
1427
1428         for (i = 0; i < len; i++) {
1429                 if (ident[i] >= '0' && ident[i] <= '9')
1430                         continue;
1431                 if (ident[i] >= 'a' && ident[i] <= 'z')
1432                         continue;
1433                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1434                         continue;
1435                 ident[i] = '_';
1436         }
1437 }
1438
1439 static int connection_unregister(struct vpn_provider *provider)
1440 {
1441         if (provider->path == NULL)
1442                 return -EALREADY;
1443
1444         g_dbus_unregister_interface(connection, provider->path,
1445                                 VPN_CONNECTION_INTERFACE);
1446
1447         g_free(provider->path);
1448         provider->path = NULL;
1449
1450         return 0;
1451 }
1452
1453 static int connection_register(struct vpn_provider *provider)
1454 {
1455         DBG("provider %p path %s", provider, provider->path);
1456
1457         if (provider->path != NULL)
1458                 return -EALREADY;
1459
1460         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1461                                                 provider->identifier);
1462
1463         g_dbus_register_interface(connection, provider->path,
1464                                 VPN_CONNECTION_INTERFACE,
1465                                 connection_methods, connection_signals,
1466                                 NULL, provider, NULL);
1467
1468         return 0;
1469 }
1470
1471 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1472                 const char *ident)
1473 {
1474         struct vpn_provider *provider;
1475
1476         if (keyfile == NULL || ident == NULL)
1477                 return NULL;
1478
1479         provider = vpn_provider_lookup(ident);
1480         if (provider == NULL) {
1481                 provider = vpn_provider_get(ident);
1482                 if (provider == NULL) {
1483                         DBG("can not create provider");
1484                         return NULL;
1485                 }
1486
1487                 provider_load_from_keyfile(provider, keyfile);
1488
1489                 if (provider->name == NULL || provider->host == NULL ||
1490                                 provider->domain == NULL) {
1491                         DBG("cannot get name, host or domain");
1492                         vpn_provider_unref(provider);
1493                         return NULL;
1494                 }
1495
1496                 if (provider_register(provider) == 0)
1497                         connection_register(provider);
1498         }
1499         return provider;
1500 }
1501
1502 static void provider_create_all_from_type(const char *provider_type)
1503 {
1504         unsigned int i;
1505         char **providers;
1506         char *id, *type;
1507         GKeyFile *keyfile;
1508
1509         DBG("provider type %s", provider_type);
1510
1511         providers = __connman_storage_get_providers();
1512
1513         for (i = 0; providers[i] != NULL; i+=1) {
1514
1515                 if (strncmp(providers[i], "provider_", 9) != 0)
1516                         continue;
1517
1518                 id = providers[i] + 9;
1519                 keyfile = __connman_storage_load_provider(id);
1520
1521                 if (keyfile == NULL)
1522                         continue;
1523
1524                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1525
1526                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1527
1528                 if (strcmp(provider_type, type) != 0) {
1529                         g_free(type);
1530                         g_key_file_free(keyfile);
1531                         continue;
1532                 }
1533
1534                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1535                         DBG("could not create provider");
1536
1537                 g_free(type);
1538                 g_key_file_free(keyfile);
1539         }
1540         g_strfreev(providers);
1541 }
1542
1543 int __vpn_provider_create_and_connect(DBusMessage *msg)
1544 {
1545         struct vpn_provider *provider;
1546         DBusMessageIter iter, array;
1547         const char *type = NULL, *name = NULL;
1548         const char *host = NULL, *domain = NULL;
1549         GSList *networks = NULL;
1550         char *ident;
1551         int err;
1552
1553         dbus_message_iter_init(msg, &iter);
1554         dbus_message_iter_recurse(&iter, &array);
1555
1556         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1557                 DBusMessageIter entry, value;
1558                 const char *key;
1559
1560                 dbus_message_iter_recurse(&array, &entry);
1561                 dbus_message_iter_get_basic(&entry, &key);
1562
1563                 dbus_message_iter_next(&entry);
1564                 dbus_message_iter_recurse(&entry, &value);
1565
1566                 switch (dbus_message_iter_get_arg_type(&value)) {
1567                 case DBUS_TYPE_STRING:
1568                         if (g_str_equal(key, "Type") == TRUE)
1569                                 dbus_message_iter_get_basic(&value, &type);
1570                         else if (g_str_equal(key, "Name") == TRUE)
1571                                 dbus_message_iter_get_basic(&value, &name);
1572                         else if (g_str_equal(key, "Host") == TRUE)
1573                                 dbus_message_iter_get_basic(&value, &host);
1574                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
1575                                 dbus_message_iter_get_basic(&value, &domain);
1576                         break;
1577                 case DBUS_TYPE_ARRAY:
1578                         if (g_str_equal(key, "UserRoutes") == TRUE)
1579                                 networks = get_user_networks(&value);
1580                         break;
1581                 }
1582
1583                 dbus_message_iter_next(&array);
1584         }
1585
1586         if (host == NULL || domain == NULL)
1587                 return -EINVAL;
1588
1589         DBG("Type %s name %s networks %p", type, name, networks);
1590
1591         if (type == NULL || name == NULL)
1592                 return -EOPNOTSUPP;
1593
1594         ident = g_strdup_printf("%s_%s", host, domain);
1595         provider_dbus_ident(ident);
1596
1597         DBG("ident %s", ident);
1598
1599         provider = vpn_provider_lookup(ident);
1600         if (provider == NULL) {
1601                 provider = vpn_provider_get(ident);
1602                 if (provider == NULL) {
1603                         DBG("can not create provider");
1604                         g_free(ident);
1605                         return -EOPNOTSUPP;
1606                 }
1607
1608                 provider->host = g_strdup(host);
1609                 provider->domain = g_strdup(domain);
1610                 provider->name = g_strdup(name);
1611                 provider->type = g_strdup(type);
1612
1613                 if (provider_register(provider) == 0)
1614                         vpn_provider_load(provider);
1615
1616                 provider_resolv_host_addr(provider);
1617         }
1618
1619         if (networks != NULL) {
1620                 g_slist_free_full(provider->user_networks, free_route);
1621                 provider->user_networks = networks;
1622                 set_user_networks(provider, provider->user_networks);
1623         }
1624
1625         dbus_message_iter_init(msg, &iter);
1626         dbus_message_iter_recurse(&iter, &array);
1627
1628         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1629                 DBusMessageIter entry, value;
1630                 const char *key, *str;
1631
1632                 dbus_message_iter_recurse(&array, &entry);
1633                 dbus_message_iter_get_basic(&entry, &key);
1634
1635                 dbus_message_iter_next(&entry);
1636                 dbus_message_iter_recurse(&entry, &value);
1637
1638                 switch (dbus_message_iter_get_arg_type(&value)) {
1639                 case DBUS_TYPE_STRING:
1640                         dbus_message_iter_get_basic(&value, &str);
1641                         vpn_provider_set_string(provider, key, str);
1642                         break;
1643                 }
1644
1645                 dbus_message_iter_next(&array);
1646         }
1647
1648         g_free(ident);
1649
1650         provider->pending_msg = dbus_message_ref(msg);
1651
1652         DBG("provider %p pending %p", provider, provider->pending_msg);
1653
1654         if (provider->index > 0) {
1655                 DBG("provider already connected");
1656         } else {
1657                 err = __vpn_provider_connect(provider);
1658                 if (err < 0 && err != -EINPROGRESS)
1659                         goto failed;
1660         }
1661
1662         vpn_provider_save(provider);
1663
1664         return 0;
1665
1666 failed:
1667         DBG("Can not connect (%d), deleting provider %p %s", err, provider,
1668                 provider->identifier);
1669
1670         vpn_provider_indicate_error(provider,
1671                                 VPN_PROVIDER_ERROR_CONNECT_FAILED);
1672
1673         g_hash_table_remove(provider_hash, provider->identifier);
1674
1675         return err;
1676 }
1677
1678 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
1679 {
1680         DBusMessageIter entry;
1681         GHashTableIter hash;
1682         gpointer value, key;
1683
1684         g_hash_table_iter_init(&hash, provider_hash);
1685
1686         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1687                 struct vpn_provider *provider = value;
1688
1689                 DBG("path %s", provider->path);
1690
1691                 if (provider->identifier == NULL)
1692                         continue;
1693
1694                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
1695                                 NULL, &entry);
1696                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
1697                                 &provider->path);
1698                 append_properties(&entry, provider);
1699                 dbus_message_iter_close_container(iter, &entry);
1700         }
1701 }
1702
1703 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
1704 {
1705         DBusMessage *reply;
1706
1707         DBG("");
1708
1709         reply = dbus_message_new_method_return(msg);
1710         if (reply == NULL)
1711                 return NULL;
1712
1713         __connman_dbus_append_objpath_dict_array(reply,
1714                         append_connection_structs, NULL);
1715
1716         return reply;
1717 }
1718
1719 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
1720 {
1721         if (provider == NULL)
1722                 return NULL;
1723
1724         return provider->identifier;
1725 }
1726
1727 int vpn_provider_set_string(struct vpn_provider *provider,
1728                                         const char *key, const char *value)
1729 {
1730         DBG("provider %p key %s value %s", provider, key, value);
1731
1732         if (g_str_equal(key, "Type") == TRUE) {
1733                 g_free(provider->type);
1734                 provider->type = g_strdup(value);
1735         } else if (g_str_equal(key, "Name") == TRUE) {
1736                 g_free(provider->name);
1737                 provider->name = g_strdup(value);
1738         } else if (g_str_equal(key, "Host") == TRUE) {
1739                 g_free(provider->host);
1740                 provider->host = g_strdup(value);
1741         } else if (g_str_equal(key, "VPN.Domain") == TRUE) {
1742                 g_free(provider->domain);
1743                 provider->domain = g_strdup(value);
1744         } else
1745                 g_hash_table_replace(provider->setting_strings,
1746                                 g_strdup(key), g_strdup(value));
1747         return 0;
1748 }
1749
1750 const char *vpn_provider_get_string(struct vpn_provider *provider,
1751                                                         const char *key)
1752 {
1753         DBG("provider %p key %s", provider, key);
1754
1755         if (g_str_equal(key, "Type") == TRUE)
1756                 return provider->type;
1757         else if (g_str_equal(key, "Name") == TRUE)
1758                 return provider->name;
1759         else if (g_str_equal(key, "Host") == TRUE)
1760                 return provider->host;
1761         else if (g_str_equal(key, "HostIP") == TRUE) {
1762                 if (provider->host_ip == NULL ||
1763                                 provider->host_ip[0] == NULL)
1764                         return provider->host;
1765                 else
1766                         return provider->host_ip[0];
1767         } else if (g_str_equal(key, "VPN.Domain") == TRUE)
1768                 return provider->domain;
1769
1770         return g_hash_table_lookup(provider->setting_strings, key);
1771 }
1772
1773 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
1774 {
1775         if (provider == NULL)
1776                 return FALSE;
1777
1778         if (provider->user_routes != NULL &&
1779                         g_hash_table_size(provider->user_routes) > 0)
1780                 return TRUE;
1781
1782         if (provider->routes != NULL &&
1783                         g_hash_table_size(provider->routes) > 0)
1784                 return TRUE;
1785
1786         return FALSE;
1787 }
1788
1789 void *vpn_provider_get_data(struct vpn_provider *provider)
1790 {
1791         return provider->driver_data;
1792 }
1793
1794 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
1795 {
1796         provider->driver_data = data;
1797 }
1798
1799 void vpn_provider_set_index(struct vpn_provider *provider, int index)
1800 {
1801         DBG("index %d provider %p pending %p", index, provider,
1802                 provider->pending_msg);
1803
1804         if (provider->pending_msg != NULL) {
1805                 g_dbus_send_reply(connection, provider->pending_msg,
1806                                 DBUS_TYPE_STRING, &provider->identifier,
1807                                 DBUS_TYPE_INT32, &index,
1808                                 DBUS_TYPE_INVALID);
1809                 dbus_message_unref(provider->pending_msg);
1810                 provider->pending_msg = NULL;
1811         }
1812
1813         if (provider->ipconfig_ipv4 == NULL) {
1814                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
1815                                                                 AF_INET);
1816                 if (provider->ipconfig_ipv4 == NULL) {
1817                         DBG("Couldnt create ipconfig for IPv4");
1818                         goto done;
1819                 }
1820         }
1821
1822         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
1823
1824         if (provider->ipconfig_ipv6 == NULL) {
1825                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
1826                                                                 AF_INET6);
1827                 if (provider->ipconfig_ipv6 == NULL) {
1828                         DBG("Couldnt create ipconfig for IPv6");
1829                         goto done;
1830                 }
1831         }
1832
1833         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
1834
1835 done:
1836         provider->index = index;
1837 }
1838
1839 int vpn_provider_get_index(struct vpn_provider *provider)
1840 {
1841         return provider->index;
1842 }
1843
1844 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
1845                                         struct connman_ipaddress *ipaddress)
1846 {
1847         struct vpn_ipconfig *ipconfig = NULL;
1848
1849         switch (ipaddress->family) {
1850         case AF_INET:
1851                 ipconfig = provider->ipconfig_ipv4;
1852                 break;
1853         case AF_INET6:
1854                 ipconfig = provider->ipconfig_ipv6;
1855                 break;
1856         default:
1857                 break;
1858         }
1859
1860         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
1861                                                         ipaddress->family);
1862
1863         if (ipconfig == NULL)
1864                 return -EINVAL;
1865
1866         provider->family = ipaddress->family;
1867
1868         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
1869         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
1870         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
1871         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
1872         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
1873
1874         return 0;
1875 }
1876
1877 int vpn_provider_set_pac(struct vpn_provider *provider,
1878                                 const char *pac)
1879 {
1880         DBG("provider %p pac %s", provider, pac);
1881
1882         return 0;
1883 }
1884
1885
1886 int vpn_provider_set_domain(struct vpn_provider *provider,
1887                                         const char *domain)
1888 {
1889         DBG("provider %p domain %s", provider, domain);
1890
1891         g_free(provider->domain);
1892         provider->domain = g_strdup(domain);
1893
1894         return 0;
1895 }
1896
1897 int vpn_provider_set_nameservers(struct vpn_provider *provider,
1898                                         const char *nameservers)
1899 {
1900         DBG("provider %p nameservers %s", provider, nameservers);
1901
1902         g_strfreev(provider->nameservers);
1903         provider->nameservers = NULL;
1904
1905         if (nameservers == NULL)
1906                 return 0;
1907
1908         provider->nameservers = g_strsplit(nameservers, " ", 0);
1909
1910         return 0;
1911 }
1912
1913 enum provider_route_type {
1914         PROVIDER_ROUTE_TYPE_NONE = 0,
1915         PROVIDER_ROUTE_TYPE_MASK = 1,
1916         PROVIDER_ROUTE_TYPE_ADDR = 2,
1917         PROVIDER_ROUTE_TYPE_GW   = 3,
1918 };
1919
1920 static int route_env_parse(struct vpn_provider *provider, const char *key,
1921                                 int *family, unsigned long *idx,
1922                                 enum provider_route_type *type)
1923 {
1924         char *end;
1925         const char *start;
1926
1927         DBG("name %s", provider->name);
1928
1929         if (!strcmp(provider->type, "openvpn")) {
1930                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
1931                         start = key + strlen("route_network_");
1932                         *type = PROVIDER_ROUTE_TYPE_ADDR;
1933                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
1934                         start = key + strlen("route_netmask_");
1935                         *type = PROVIDER_ROUTE_TYPE_MASK;
1936                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
1937                         start = key + strlen("route_gateway_");
1938                         *type = PROVIDER_ROUTE_TYPE_GW;
1939                 } else
1940                         return -EINVAL;
1941
1942                 *family = AF_INET;
1943                 *idx = g_ascii_strtoull(start, &end, 10);
1944
1945         } else if (!strcmp(provider->type, "openconnect")) {
1946                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
1947                         *family = AF_INET;
1948                         start = key + strlen("CISCO_SPLIT_INC_");
1949                 } else if (g_str_has_prefix(key,
1950                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
1951                         *family = AF_INET6;
1952                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
1953                 } else
1954                         return -EINVAL;
1955
1956                 *idx = g_ascii_strtoull(start, &end, 10);
1957
1958                 if (strncmp(end, "_ADDR", 5) == 0)
1959                         *type = PROVIDER_ROUTE_TYPE_ADDR;
1960                 else if (strncmp(end, "_MASK", 5) == 0)
1961                         *type = PROVIDER_ROUTE_TYPE_MASK;
1962                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
1963                                 *family == AF_INET6) {
1964                         *type = PROVIDER_ROUTE_TYPE_MASK;
1965                 } else
1966                         return -EINVAL;
1967         }
1968
1969         return 0;
1970 }
1971
1972 int vpn_provider_append_route(struct vpn_provider *provider,
1973                                         const char *key, const char *value)
1974 {
1975         struct vpn_route *route;
1976         int ret, family = 0;
1977         unsigned long idx = 0;
1978         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
1979
1980         DBG("key %s value %s", key, value);
1981
1982         ret = route_env_parse(provider, key, &family, &idx, &type);
1983         if (ret < 0)
1984                 return ret;
1985
1986         DBG("idx %lu family %d type %d", idx, family, type);
1987
1988         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
1989         if (route == NULL) {
1990                 route = g_try_new0(struct vpn_route, 1);
1991                 if (route == NULL) {
1992                         connman_error("out of memory");
1993                         return -ENOMEM;
1994                 }
1995
1996                 route->family = family;
1997
1998                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
1999                                                 route);
2000         }
2001
2002         switch (type) {
2003         case PROVIDER_ROUTE_TYPE_NONE:
2004                 break;
2005         case PROVIDER_ROUTE_TYPE_MASK:
2006                 route->netmask = g_strdup(value);
2007                 break;
2008         case PROVIDER_ROUTE_TYPE_ADDR:
2009                 route->network = g_strdup(value);
2010                 break;
2011         case PROVIDER_ROUTE_TYPE_GW:
2012                 route->gateway = g_strdup(value);
2013                 break;
2014         }
2015
2016         if (handle_routes == FALSE) {
2017                 if (route->netmask != NULL && route->gateway != NULL &&
2018                                                         route->network != NULL)
2019                         provider_schedule_changed(provider,
2020                                                 SERVER_ROUTES_CHANGED);
2021         }
2022
2023         return 0;
2024 }
2025
2026 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2027 {
2028         if (provider->driver == NULL)
2029                 return NULL;
2030
2031         return provider->driver->name;
2032 }
2033
2034 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2035 {
2036         return provider->identifier;
2037 }
2038
2039 static gint compare_priority(gconstpointer a, gconstpointer b)
2040 {
2041         return 0;
2042 }
2043
2044 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2045 {
2046         struct vpn_provider *provider = value;
2047
2048         if (provider->driver != NULL && provider->driver->remove)
2049                 provider->driver->remove(provider);
2050
2051         connection_unregister(provider);
2052 }
2053
2054 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2055 {
2056         DBG("driver %p name %s", driver, driver->name);
2057
2058         driver_list = g_slist_insert_sorted(driver_list, driver,
2059                                                         compare_priority);
2060         provider_create_all_from_type(driver->name);
2061         return 0;
2062 }
2063
2064 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2065 {
2066         DBG("driver %p name %s", driver, driver->name);
2067
2068         driver_list = g_slist_remove(driver_list, driver);
2069 }
2070
2071 int __vpn_provider_init(gboolean do_routes)
2072 {
2073         DBG("");
2074
2075         handle_routes = do_routes;
2076
2077         connection = connman_dbus_get_connection();
2078
2079         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2080                                                 NULL, unregister_provider);
2081
2082         return 0;
2083 }
2084
2085 void __vpn_provider_cleanup(void)
2086 {
2087         DBG("");
2088
2089         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2090
2091         g_hash_table_destroy(provider_hash);
2092         provider_hash = NULL;
2093
2094         dbus_connection_unref(connection);
2095 }