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 static DBusConnection *connection;
  42 static GHashTable *provider_hash;
  43 static GSList *driver_list;
  44 static int configuration_count;
  45 static gboolean handle_routes;
  46
  47 struct vpn_route {
  48         int family;
  49         char *network;
  50         char *netmask;
  51         char *gateway;
  52 };
  53
  54 struct vpn_setting {
  55         gboolean hide_value;
  56         char *value;
  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         guint notify_id;
  83         char *config_file;
  84         char *config_entry;
  85 };
  86
  87 static void append_properties(DBusMessageIter *iter,
  88                                 struct vpn_provider *provider);
  89
  90 static void free_route(gpointer data)
  91 {
  92         struct vpn_route *route = data;
  93
  94         g_free(route->network);
  95         g_free(route->netmask);
  96         g_free(route->gateway);
  97
  98         g_free(route);
  99 }
 100
 101 static void free_setting(gpointer data)
 102 {
 103         struct vpn_setting *setting = data;
 104
 105         g_free(setting->value);
 106         g_free(setting);
 107 }
 108
 109 static void append_route(DBusMessageIter *iter, void *user_data)
 110 {
 111         struct vpn_route *route = user_data;
 112         DBusMessageIter item;
 113         int family = 0;
 114
 115         connman_dbus_dict_open(iter, &item);
 116
 117         if (route == NULL)
 118                 goto empty_dict;
 119
 120         if (route->family == AF_INET)
 121                 family = 4;
 122         else if (route->family == AF_INET6)
 123                 family = 6;
 124
 125         if (family != 0)
 126                 connman_dbus_dict_append_basic(&item, "ProtocolFamily",
 127                                         DBUS_TYPE_INT32, &family);
 128
 129         if (route->network != NULL)
 130                 connman_dbus_dict_append_basic(&item, "Network",
 131                                         DBUS_TYPE_STRING, &route->network);
 132
 133         if (route->netmask != NULL)
 134                 connman_dbus_dict_append_basic(&item, "Netmask",
 135                                         DBUS_TYPE_STRING, &route->netmask);
 136
 137         if (route->gateway != NULL)
 138                 connman_dbus_dict_append_basic(&item, "Gateway",
 139                                         DBUS_TYPE_STRING, &route->gateway);
 140
 141 empty_dict:
 142         connman_dbus_dict_close(iter, &item);
 143 }
 144
 145 static void append_routes(DBusMessageIter *iter, void *user_data)
 146 {
 147         GHashTable *routes = user_data;
 148         GHashTableIter hash;
 149         gpointer value, key;
 150
 151         if (routes == NULL) {
 152                 append_route(iter, NULL);
 153                 return;
 154         }
 155
 156         g_hash_table_iter_init(&hash, routes);
 157
 158         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
 159                 DBusMessageIter dict;
 160
 161                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT, NULL,
 162                                                 &dict);
 163                 append_route(&dict, value);
 164                 dbus_message_iter_close_container(iter, &dict);
 165         }
 166 }
 167
 168 static void send_routes(struct vpn_provider *provider, GHashTable *routes,
 169                         const char *name)
 170 {
 171         connman_dbus_property_changed_array(provider->path,
 172                                         VPN_CONNECTION_INTERFACE,
 173                                         name,
 174                                         DBUS_TYPE_DICT_ENTRY,
 175                                         append_routes,
 176                                         routes);
 177 }
 178
 179 static int provider_routes_changed(struct vpn_provider *provider)
 180 {
 181         DBG("provider %p", provider);
 182
 183         send_routes(provider, provider->routes, "ServerRoutes");
 184
 185         return 0;
 186 }
 187
 188 static GSList *read_route_dict(GSList *routes, DBusMessageIter *dicts)
 189 {
 190         DBusMessageIter dict, value, entry;
 191         const char *network, *netmask, *gateway;
 192         struct vpn_route *route;
 193         int family, type;
 194         const char *key;
 195
 196         dbus_message_iter_recurse(dicts, &entry);
 197
 198         network = netmask = gateway = NULL;
 199         family = PF_UNSPEC;
 200
 201         while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_DICT_ENTRY) {
 202
 203                 dbus_message_iter_recurse(&entry, &dict);
 204                 dbus_message_iter_get_basic(&dict, &key);
 205
 206                 dbus_message_iter_next(&dict);
 207                 dbus_message_iter_recurse(&dict, &value);
 208
 209                 type = dbus_message_iter_get_arg_type(&value);
 210
 211                 switch (type) {
 212                 case DBUS_TYPE_STRING:
 213                         if (g_str_equal(key, "ProtocolFamily") == TRUE)
 214                                 dbus_message_iter_get_basic(&value, &family);
 215                         else if (g_str_equal(key, "Network") == TRUE)
 216                                 dbus_message_iter_get_basic(&value, &network);
 217                         else if (g_str_equal(key, "Netmask") == TRUE)
 218                                 dbus_message_iter_get_basic(&value, &netmask);
 219                         else if (g_str_equal(key, "Gateway") == TRUE)
 220                                 dbus_message_iter_get_basic(&value, &gateway);
 221                         break;
 222                 }
 223
 224                 dbus_message_iter_next(&entry);
 225         }
 226
 227         DBG("family %d network %s netmask %s gateway %s", family,
 228                 network, netmask, gateway);
 229
 230         if (network == NULL || netmask == NULL) {
 231                 DBG("Ignoring route as network/netmask is missing");
 232                 return routes;
 233         }
 234
 235         route = g_try_new(struct vpn_route, 1);
 236         if (route == NULL) {
 237                 g_slist_free_full(routes, free_route);
 238                 return NULL;
 239         }
 240
 241         if (family == PF_UNSPEC) {
 242                 family = connman_inet_check_ipaddress(network);
 243                 if (family < 0) {
 244                         DBG("Cannot get address family of %s (%d/%s)", network,
 245                                 family, gai_strerror(family));
 246
 247                         g_free(route);
 248                         return routes;
 249                 }
 250         } else {
 251                 switch (family) {
 252                 case '4':
 253                         family = AF_INET;
 254                         break;
 255                 case '6':
 256                         family = AF_INET6;
 257                         break;
 258                 default:
 259                         family = PF_UNSPEC;
 260                         break;
 261                 }
 262         }
 263
 264         route->family = family;
 265         route->network = g_strdup(network);
 266         route->netmask = g_strdup(netmask);
 267         route->gateway = g_strdup(gateway);
 268
 269         routes = g_slist_prepend(routes, route);
 270         return routes;
 271 }
 272
 273 static GSList *get_user_networks(DBusMessageIter *array)
 274 {
 275         DBusMessageIter entry;
 276         GSList *list = NULL;
 277
 278         while (dbus_message_iter_get_arg_type(array) == DBUS_TYPE_ARRAY) {
 279
 280                 dbus_message_iter_recurse(array, &entry);
 281
 282                 while (dbus_message_iter_get_arg_type(&entry) ==
 283                                                         DBUS_TYPE_STRUCT) {
 284                         DBusMessageIter dicts;
 285
 286                         dbus_message_iter_recurse(&entry, &dicts);
 287
 288                         while (dbus_message_iter_get_arg_type(&dicts) ==
 289                                                         DBUS_TYPE_ARRAY) {
 290
 291                                 list = read_route_dict(list, &dicts);
 292                                 dbus_message_iter_next(&dicts);
 293                         }
 294
 295                         dbus_message_iter_next(&entry);
 296                 }
 297
 298                 dbus_message_iter_next(array);
 299         }
 300
 301         return list;
 302 }
 303
 304 static void set_user_networks(struct vpn_provider *provider, GSList *networks)
 305 {
 306         GSList *list;
 307
 308         for (list = networks; list != NULL; list = g_slist_next(list)) {
 309                 struct vpn_route *route = list->data;
 310
 311                 if (__vpn_provider_append_user_route(provider,
 312                                         route->family, route->network,
 313                                         route->netmask, route->gateway) != 0)
 314                         break;
 315         }
 316 }
 317
 318 static void del_routes(struct vpn_provider *provider)
 319 {
 320         GHashTableIter hash;
 321         gpointer value, key;
 322
 323         g_hash_table_iter_init(&hash, provider->user_routes);
 324         while (handle_routes == TRUE && g_hash_table_iter_next(&hash,
 325                                                 &key, &value) == TRUE) {
 326                 struct vpn_route *route = value;
 327                 if (route->family == AF_INET6) {
 328                         unsigned char prefixlen = atoi(route->netmask);
 329                         connman_inet_del_ipv6_network_route(provider->index,
 330                                                         route->network,
 331                                                         prefixlen);
 332                 } else
 333                         connman_inet_del_host_route(provider->index,
 334                                                 route->network);
 335         }
 336
 337         g_hash_table_remove_all(provider->user_routes);
 338         g_slist_free_full(provider->user_networks, free_route);
 339         provider->user_networks = NULL;
 340 }
 341
 342 static void send_value(const char *path, const char *key, const char *value)
 343 {
 344         const char *empty = "";
 345         const char *str;
 346
 347         if (value != NULL)
 348                 str = value;
 349         else
 350                 str = empty;
 351
 352         connman_dbus_property_changed_basic(path,
 353                                         VPN_CONNECTION_INTERFACE,
 354                                         key,
 355                                         DBUS_TYPE_STRING,
 356                                         &str);
 357 }
 358
 359 static gboolean provider_send_changed(gpointer data)
 360 {
 361         struct vpn_provider *provider = data;
 362
 363         provider_routes_changed(provider);
 364
 365         provider->notify_id = 0;
 366
 367         return FALSE;
 368 }
 369
 370 static void provider_schedule_changed(struct vpn_provider *provider)
 371 {
 372         if (provider->notify_id != 0)
 373                 g_source_remove(provider->notify_id);
 374
 375         provider->notify_id = g_timeout_add(100, provider_send_changed,
 376                                                                 provider);
 377 }
 378
 379 static DBusMessage *get_properties(DBusConnection *conn,
 380                                         DBusMessage *msg, void *data)
 381 {
 382         struct vpn_provider *provider = data;
 383         DBusMessage *reply;
 384         DBusMessageIter array;
 385
 386         DBG("provider %p", provider);
 387
 388         reply = dbus_message_new_method_return(msg);
 389         if (reply == NULL)
 390                 return NULL;
 391
 392         dbus_message_iter_init_append(reply, &array);
 393
 394         append_properties(&array, provider);
 395
 396         return reply;
 397 }
 398
 399 static DBusMessage *set_property(DBusConnection *conn, DBusMessage *msg,
 400                                                                 void *data)
 401 {
 402         struct vpn_provider *provider = data;
 403         DBusMessageIter iter, value;
 404         const char *name;
 405         int type;
 406
 407         DBG("conn %p", conn);
 408
 409         if (dbus_message_iter_init(msg, &iter) == FALSE)
 410                 return __connman_error_invalid_arguments(msg);
 411
 412         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 413                 return __connman_error_invalid_arguments(msg);
 414
 415         dbus_message_iter_get_basic(&iter, &name);
 416         dbus_message_iter_next(&iter);
 417
 418         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 419                 return __connman_error_invalid_arguments(msg);
 420
 421         dbus_message_iter_recurse(&iter, &value);
 422
 423         type = dbus_message_iter_get_arg_type(&value);
 424
 425         if (g_str_equal(name, "UserRoutes") == TRUE) {
 426                 GSList *networks;
 427
 428                 if (type != DBUS_TYPE_ARRAY)
 429                         return __connman_error_invalid_arguments(msg);
 430
 431                 networks = get_user_networks(&value);
 432                 if (networks != NULL) {
 433                         del_routes(provider);
 434                         provider->user_networks = networks;
 435                         set_user_networks(provider, provider->user_networks);
 436
 437                         if (handle_routes == FALSE)
 438                                 send_routes(provider, provider->user_routes,
 439                                                                 "UserRoutes");
 440                 }
 441         } else {
 442                 const char *str;
 443
 444                 dbus_message_iter_get_basic(&value, &str);
 445                 vpn_provider_set_string(provider, name, str);
 446         }
 447
 448         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 449 }
 450
 451 static DBusMessage *clear_property(DBusConnection *conn, DBusMessage *msg,
 452                                                                 void *data)
 453 {
 454         struct vpn_provider *provider = data;
 455         const char *name;
 456
 457         DBG("conn %p", conn);
 458
 459         dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &name,
 460                                                         DBUS_TYPE_INVALID);
 461
 462         if (g_str_equal(name, "UserRoutes") == TRUE) {
 463                 del_routes(provider);
 464
 465                 if (handle_routes == FALSE)
 466                         send_routes(provider, provider->user_routes, name);
 467         } else if (vpn_provider_get_string(provider, name) != NULL) {
 468                 vpn_provider_set_string(provider, name, NULL);
 469         } else {
 470                 return __connman_error_invalid_property(msg);
 471         }
 472
 473         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 474 }
 475
 476 static DBusMessage *do_connect(DBusConnection *conn, DBusMessage *msg,
 477                                                                 void *data)
 478 {
 479         struct vpn_provider *provider = data;
 480         int err;
 481
 482         DBG("conn %p provider %p", conn, provider);
 483
 484         err = __vpn_provider_connect(provider, msg);
 485         if (err < 0)
 486                 return __connman_error_failed(msg, -err);
 487
 488         return NULL;
 489 }
 490
 491 static DBusMessage *do_disconnect(DBusConnection *conn, DBusMessage *msg,
 492                                                                 void *data)
 493 {
 494         struct vpn_provider *provider = data;
 495         int err;
 496
 497         DBG("conn %p provider %p", conn, provider);
 498
 499         err = __vpn_provider_disconnect(provider);
 500         if (err < 0 && err != -EINPROGRESS)
 501                 return __connman_error_failed(msg, -err);
 502
 503         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 504 }
 505
 506 static const GDBusMethodTable connection_methods[] = {
 507         { GDBUS_METHOD("GetProperties",
 508                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 509                         get_properties) },
 510         { GDBUS_METHOD("SetProperty",
 511                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 512                         NULL, set_property) },
 513         { GDBUS_METHOD("ClearProperty",
 514                         GDBUS_ARGS({ "name", "s" }), NULL,
 515                         clear_property) },
 516         { GDBUS_ASYNC_METHOD("Connect", NULL, NULL, do_connect) },
 517         { GDBUS_METHOD("Disconnect", NULL, NULL, do_disconnect) },
 518         { },
 519 };
 520
 521 static const GDBusSignalTable connection_signals[] = {
 522         { GDBUS_SIGNAL("PropertyChanged",
 523                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 524         { },
 525 };
 526
 527 static void resolv_result(GResolvResultStatus status,
 528                                         char **results, gpointer user_data)
 529 {
 530         struct vpn_provider *provider = user_data;
 531
 532         DBG("status %d", status);
 533
 534         if (status == G_RESOLV_RESULT_STATUS_SUCCESS && results != NULL &&
 535                                                 g_strv_length(results) > 0)
 536                 provider->host_ip = g_strdupv(results);
 537
 538         vpn_provider_unref(provider);
 539 }
 540
 541 static void provider_resolv_host_addr(struct vpn_provider *provider)
 542 {
 543         if (provider->host == NULL)
 544                 return;
 545
 546         if (connman_inet_check_ipaddress(provider->host) > 0)
 547                 return;
 548
 549         if (provider->host_ip != NULL)
 550                 return;
 551
 552         /*
 553          * If the hostname is not numeric, try to resolv it. We do not wait
 554          * the result as it might take some time. We will get the result
 555          * before VPN will feed routes to us because VPN client will need
 556          * the IP address also before VPN connection can be established.
 557          */
 558         provider->resolv = g_resolv_new(0);
 559         if (provider->resolv == NULL) {
 560                 DBG("Cannot resolv %s", provider->host);
 561                 return;
 562         }
 563
 564         DBG("Trying to resolv %s", provider->host);
 565
 566         vpn_provider_ref(provider);
 567
 568         g_resolv_lookup_hostname(provider->resolv, provider->host,
 569                                 resolv_result, provider);
 570 }
 571
 572 void __vpn_provider_append_properties(struct vpn_provider *provider,
 573                                                         DBusMessageIter *iter)
 574 {
 575         if (provider->host != NULL)
 576                 connman_dbus_dict_append_basic(iter, "Host",
 577                                         DBUS_TYPE_STRING, &provider->host);
 578
 579         if (provider->domain != NULL)
 580                 connman_dbus_dict_append_basic(iter, "Domain",
 581                                         DBUS_TYPE_STRING, &provider->domain);
 582
 583         if (provider->type != NULL)
 584                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
 585                                                  &provider->type);
 586 }
 587
 588 int __vpn_provider_append_user_route(struct vpn_provider *provider,
 589                                 int family, const char *network,
 590                                 const char *netmask, const char *gateway)
 591 {
 592         struct vpn_route *route;
 593         char *key = g_strdup_printf("%d/%s/%s/%s", family, network,
 594                                 netmask, gateway != NULL ? gateway : "");
 595
 596         DBG("family %d network %s netmask %s gw %s", family, network,
 597                                                         netmask, gateway);
 598
 599         route = g_hash_table_lookup(provider->user_routes, key);
 600         if (route == NULL) {
 601                 route = g_try_new0(struct vpn_route, 1);
 602                 if (route == NULL) {
 603                         connman_error("out of memory");
 604                         return -ENOMEM;
 605                 }
 606
 607                 route->family = family;
 608                 route->network = g_strdup(network);
 609                 route->netmask = g_strdup(netmask);
 610                 route->gateway = g_strdup(gateway);
 611
 612                 g_hash_table_replace(provider->user_routes, key, route);
 613         } else
 614                 g_free(key);
 615
 616         return 0;
 617 }
 618
 619 static struct vpn_route *get_route(char *route_str)
 620 {
 621         char **elems = g_strsplit(route_str, "/", 0);
 622         char *network, *netmask, *gateway, *family_str;
 623         int family = PF_UNSPEC;
 624         struct vpn_route *route = NULL;
 625
 626         if (elems == NULL)
 627                 return NULL;
 628
 629         family_str = elems[0];
 630
 631         network = elems[1];
 632         if (network == NULL || network[0] == '\0')
 633                 goto out;
 634
 635         netmask = elems[2];
 636         if (netmask == NULL || netmask[0] == '\0')
 637                 goto out;
 638
 639         gateway = elems[3];
 640
 641         route = g_try_new0(struct vpn_route, 1);
 642         if (route == NULL)
 643                 goto out;
 644
 645         if (family_str[0] == '\0' || atoi(family_str) == 0) {
 646                 family = PF_UNSPEC;
 647         } else {
 648                 switch (family_str[0]) {
 649                 case '4':
 650                         family = AF_INET;
 651                         break;
 652                 case '6':
 653                         family = AF_INET6;
 654                         break;
 655                 }
 656         }
 657
 658         if (g_strrstr(network, ":") != NULL) {
 659                 if (family != PF_UNSPEC && family != AF_INET6)
 660                         DBG("You have IPv6 address but you have non IPv6 route");
 661         } else if (g_strrstr(network, ".") != NULL) {
 662                 if (family != PF_UNSPEC && family != AF_INET)
 663                         DBG("You have IPv4 address but you have non IPv4 route");
 664
 665                 if (g_strrstr(netmask, ".") == NULL) {
 666                         /* We have netmask length */
 667                         in_addr_t addr;
 668                         struct in_addr netmask_in;
 669                         unsigned char prefix_len = 32;
 670
 671                         if (netmask != NULL) {
 672                                 char *ptr;
 673                                 long int value = strtol(netmask, &ptr, 10);
 674                                 if (ptr != netmask && *ptr == '\0' &&
 675                                                                 value <= 32)
 676                                         prefix_len = value;
 677                         }
 678
 679                         addr = 0xffffffff << (32 - prefix_len);
 680                         netmask_in.s_addr = htonl(addr);
 681                         netmask = inet_ntoa(netmask_in);
 682
 683                         DBG("network %s netmask %s", network, netmask);
 684                 }
 685         }
 686
 687         if (family == PF_UNSPEC) {
 688                 family = connman_inet_check_ipaddress(network);
 689                 if (family < 0 || family == PF_UNSPEC)
 690                         goto out;
 691         }
 692
 693         route->family = family;
 694         route->network = g_strdup(network);
 695         route->netmask = g_strdup(netmask);
 696         route->gateway = g_strdup(gateway);
 697
 698 out:
 699         g_strfreev(elems);
 700         return route;
 701 }
 702
 703 static GSList *get_routes(gchar **networks)
 704 {
 705         struct vpn_route *route;
 706         GSList *routes = NULL;
 707         int i;
 708
 709         for (i = 0; networks[i] != NULL; i++) {
 710                 route = get_route(networks[i]);
 711                 if (route != NULL)
 712                         routes = g_slist_prepend(routes, route);
 713         }
 714
 715         return routes;
 716 }
 717
 718 static int provider_load_from_keyfile(struct vpn_provider *provider,
 719                 GKeyFile *keyfile)
 720 {
 721         gsize idx = 0;
 722         gchar **settings;
 723         gchar *key, *value;
 724         gsize length, num_user_networks;
 725         gchar **networks = NULL;
 726
 727         settings = g_key_file_get_keys(keyfile, provider->identifier, &length,
 728                                 NULL);
 729         if (settings == NULL) {
 730                 g_key_file_free(keyfile);
 731                 return -ENOENT;
 732         }
 733
 734         while (idx < length) {
 735                 key = settings[idx];
 736                 if (key != NULL) {
 737                         if (g_str_equal(key, "Networks") == TRUE) {
 738                                 networks = g_key_file_get_string_list(keyfile,
 739                                                 provider->identifier,
 740                                                 key,
 741                                                 &num_user_networks,
 742                                                 NULL);
 743                                 provider->user_networks = get_routes(networks);
 744
 745                         } else {
 746                                 value = g_key_file_get_string(keyfile,
 747                                                         provider->identifier,
 748                                                         key, NULL);
 749                                 vpn_provider_set_string(provider, key,
 750                                                         value);
 751                                 g_free(value);
 752                         }
 753                 }
 754                 idx += 1;
 755         }
 756         g_strfreev(settings);
 757         g_strfreev(networks);
 758
 759         if (provider->user_networks != NULL)
 760                 set_user_networks(provider, provider->user_networks);
 761
 762         return 0;
 763 }
 764
 765
 766 static int vpn_provider_load(struct vpn_provider *provider)
 767 {
 768         GKeyFile *keyfile;
 769
 770         DBG("provider %p", provider);
 771
 772         keyfile = __connman_storage_load_provider(provider->identifier);
 773         if (keyfile == NULL)
 774                 return -ENOENT;
 775
 776         provider_load_from_keyfile(provider, keyfile);
 777
 778         g_key_file_free(keyfile);
 779         return 0;
 780 }
 781
 782 static gchar **create_network_list(GSList *networks, gsize *count)
 783 {
 784         GSList *list;
 785         gchar **result = NULL;
 786         unsigned int num_elems = 0;
 787
 788         for (list = networks; list != NULL; list = g_slist_next(list)) {
 789                 struct vpn_route *route = list->data;
 790                 int family;
 791
 792                 result = g_try_realloc(result,
 793                                 (num_elems + 1) * sizeof(gchar *));
 794                 if (result == NULL)
 795                         return NULL;
 796
 797                 switch (route->family) {
 798                 case AF_INET:
 799                         family = 4;
 800                         break;
 801                 case AF_INET6:
 802                         family = 6;
 803                         break;
 804                 default:
 805                         family = 0;
 806                         break;
 807                 }
 808
 809                 result[num_elems] = g_strdup_printf("%d/%s/%s/%s",
 810                                 family, route->network, route->netmask,
 811                                 route->gateway == NULL ? "" : route->gateway);
 812
 813                 num_elems++;
 814         }
 815
 816         result = g_try_realloc(result, (num_elems + 1) * sizeof(gchar *));
 817         if (result == NULL)
 818                 return NULL;
 819
 820         result[num_elems] = NULL;
 821         *count = num_elems;
 822         return result;
 823 }
 824
 825 static int vpn_provider_save(struct vpn_provider *provider)
 826 {
 827         GKeyFile *keyfile;
 828
 829         DBG("provider %p", provider);
 830
 831         keyfile = g_key_file_new();
 832         if (keyfile == NULL)
 833                 return -ENOMEM;
 834
 835         g_key_file_set_string(keyfile, provider->identifier,
 836                         "Name", provider->name);
 837         g_key_file_set_string(keyfile, provider->identifier,
 838                         "Type", provider->type);
 839         g_key_file_set_string(keyfile, provider->identifier,
 840                         "Host", provider->host);
 841         g_key_file_set_string(keyfile, provider->identifier,
 842                         "VPN.Domain", provider->domain);
 843         if (provider->user_networks != NULL) {
 844                 gchar **networks;
 845                 gsize network_count;
 846
 847                 networks = create_network_list(provider->user_networks,
 848                                                         &network_count);
 849                 if (networks != NULL) {
 850                         g_key_file_set_string_list(keyfile,
 851                                                 provider->identifier,
 852                                                 "Networks",
 853                                                 (const gchar ** const)networks,
 854                                                 network_count);
 855                         g_strfreev(networks);
 856                 }
 857         }
 858
 859         if (provider->config_file != NULL && strlen(provider->config_file) > 0)
 860                 g_key_file_set_string(keyfile, provider->identifier,
 861                                 "Config.file", provider->config_file);
 862
 863         if (provider->config_entry != NULL &&
 864                                         strlen(provider->config_entry) > 0)
 865                 g_key_file_set_string(keyfile, provider->identifier,
 866                                 "Config.ident", provider->config_entry);
 867
 868         if (provider->driver != NULL && provider->driver->save != NULL)
 869                 provider->driver->save(provider, keyfile);
 870
 871         __connman_storage_save_provider(keyfile, provider->identifier);
 872         g_key_file_free(keyfile);
 873
 874         return 0;
 875 }
 876
 877 struct vpn_provider *__vpn_provider_lookup(const char *identifier)
 878 {
 879         struct vpn_provider *provider = NULL;
 880
 881         provider = g_hash_table_lookup(provider_hash, identifier);
 882
 883         return provider;
 884 }
 885
 886 static gboolean match_driver(struct vpn_provider *provider,
 887                                 struct vpn_provider_driver *driver)
 888 {
 889         if (g_strcmp0(driver->name, provider->type) == 0)
 890                 return TRUE;
 891
 892         return FALSE;
 893 }
 894
 895 static int provider_probe(struct vpn_provider *provider)
 896 {
 897         GSList *list;
 898
 899         DBG("provider %p driver %p name %s", provider, provider->driver,
 900                                                 provider->name);
 901
 902         if (provider->driver != NULL)
 903                 return -EALREADY;
 904
 905         for (list = driver_list; list; list = list->next) {
 906                 struct vpn_provider_driver *driver = list->data;
 907
 908                 if (match_driver(provider, driver) == FALSE)
 909                         continue;
 910
 911                 DBG("driver %p name %s", driver, driver->name);
 912
 913                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 914                         provider->driver = driver;
 915                         break;
 916                 }
 917         }
 918
 919         if (provider->driver == NULL)
 920                 return -ENODEV;
 921
 922         return 0;
 923 }
 924
 925 static void provider_remove(struct vpn_provider *provider)
 926 {
 927         if (provider->driver != NULL) {
 928                 provider->driver->remove(provider);
 929                 provider->driver = NULL;
 930         }
 931 }
 932
 933 static int provider_register(struct vpn_provider *provider)
 934 {
 935         return provider_probe(provider);
 936 }
 937
 938 static void provider_unregister(struct vpn_provider *provider)
 939 {
 940         provider_remove(provider);
 941 }
 942
 943 struct vpn_provider *
 944 vpn_provider_ref_debug(struct vpn_provider *provider,
 945                         const char *file, int line, const char *caller)
 946 {
 947         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
 948                 file, line, caller);
 949
 950         __sync_fetch_and_add(&provider->refcount, 1);
 951
 952         return provider;
 953 }
 954
 955 static void provider_destruct(struct vpn_provider *provider)
 956 {
 957         DBG("provider %p", provider);
 958
 959         if (provider->notify_id != 0)
 960                 g_source_remove(provider->notify_id);
 961
 962         g_free(provider->name);
 963         g_free(provider->type);
 964         g_free(provider->host);
 965         g_free(provider->domain);
 966         g_free(provider->identifier);
 967         g_free(provider->path);
 968         g_slist_free_full(provider->user_networks, free_route);
 969         g_strfreev(provider->nameservers);
 970         g_hash_table_destroy(provider->routes);
 971         g_hash_table_destroy(provider->user_routes);
 972         g_hash_table_destroy(provider->setting_strings);
 973         if (provider->resolv != NULL) {
 974                 g_resolv_unref(provider->resolv);
 975                 provider->resolv = NULL;
 976         }
 977         __vpn_ipconfig_unref(provider->ipconfig_ipv4);
 978         __vpn_ipconfig_unref(provider->ipconfig_ipv6);
 979
 980         g_strfreev(provider->host_ip);
 981         g_free(provider->config_file);
 982         g_free(provider->config_entry);
 983         g_free(provider);
 984 }
 985
 986 void vpn_provider_unref_debug(struct vpn_provider *provider,
 987                                 const char *file, int line, const char *caller)
 988 {
 989         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 990                 file, line, caller);
 991
 992         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
 993                 return;
 994
 995         provider_remove(provider);
 996
 997         provider_destruct(provider);
 998 }
 999
1000 static void configuration_count_add(void)
1001 {
1002         DBG("count %d", configuration_count + 1);
1003
1004         __sync_fetch_and_add(&configuration_count, 1);
1005 }
1006
1007 static void configuration_count_del(void)
1008 {
1009         DBG("count %d", configuration_count - 1);
1010
1011         if (__sync_fetch_and_sub(&configuration_count, 1) != 1)
1012                 return;
1013 }
1014
1015 int __vpn_provider_disconnect(struct vpn_provider *provider)
1016 {
1017         int err;
1018
1019         DBG("provider %p", provider);
1020
1021         if (provider->driver != NULL && provider->driver->disconnect != NULL)
1022                 err = provider->driver->disconnect(provider);
1023         else
1024                 return -EOPNOTSUPP;
1025
1026         if (err == -EINPROGRESS)
1027                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1028
1029         return err;
1030 }
1031
1032 static void connect_cb(struct vpn_provider *provider, void *user_data,
1033                                                                 int error)
1034 {
1035         DBusMessage *pending = user_data;
1036
1037         DBG("provider %p user %p error %d", provider, user_data, error);
1038
1039         if (error != 0) {
1040                 DBusMessage *reply = __connman_error_failed(pending, error);
1041                 if (reply != NULL)
1042                         g_dbus_send_message(connection, reply);
1043
1044                 vpn_provider_indicate_error(provider,
1045                                         VPN_PROVIDER_ERROR_CONNECT_FAILED);
1046                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1047         } else
1048                 g_dbus_send_reply(connection, pending, DBUS_TYPE_INVALID);
1049
1050         dbus_message_unref(pending);
1051 }
1052
1053 int __vpn_provider_connect(struct vpn_provider *provider, DBusMessage *msg)
1054 {
1055         int err;
1056
1057         DBG("provider %p", provider);
1058
1059         if (provider->driver != NULL && provider->driver->connect != NULL) {
1060                 dbus_message_ref(msg);
1061                 err = provider->driver->connect(provider, connect_cb, msg);
1062         } else
1063                 return -EOPNOTSUPP;
1064
1065         if (err == -EINPROGRESS)
1066                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1067
1068         return err;
1069 }
1070
1071 static void connection_removed_signal(struct vpn_provider *provider)
1072 {
1073         DBusMessage *signal;
1074         DBusMessageIter iter;
1075
1076         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1077                         VPN_MANAGER_INTERFACE, "ConnectionRemoved");
1078         if (signal == NULL)
1079                 return;
1080
1081         dbus_message_iter_init_append(signal, &iter);
1082         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1083                                                         &provider->path);
1084         dbus_connection_send(connection, signal, NULL);
1085         dbus_message_unref(signal);
1086 }
1087
1088 static char *get_ident(const char *path)
1089 {
1090         char *pos;
1091
1092         if (*path != '/')
1093                 return NULL;
1094
1095         pos = strrchr(path, '/');
1096         if (pos == NULL)
1097                 return NULL;
1098
1099         return pos + 1;
1100 }
1101
1102 int __vpn_provider_remove(const char *path)
1103 {
1104         struct vpn_provider *provider;
1105         char *ident;
1106
1107         DBG("path %s", path);
1108
1109         ident = get_ident(path);
1110
1111         provider = __vpn_provider_lookup(ident);
1112         if (provider != NULL)
1113                 return __vpn_provider_delete(provider);
1114
1115         return -ENXIO;
1116 }
1117
1118 int __vpn_provider_delete(struct vpn_provider *provider)
1119 {
1120         DBG("Deleting VPN %s", provider->identifier);
1121
1122         connection_removed_signal(provider);
1123
1124         provider_unregister(provider);
1125
1126         __connman_storage_remove_provider(provider->identifier);
1127
1128         g_hash_table_remove(provider_hash, provider->identifier);
1129
1130         return 0;
1131 }
1132
1133 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1134 {
1135         struct vpn_provider *provider = user_data;
1136         const char *address, *gateway, *peer;
1137
1138         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1139         if (address != NULL) {
1140                 in_addr_t addr;
1141                 struct in_addr netmask;
1142                 char *mask;
1143                 int prefixlen;
1144
1145                 prefixlen = __vpn_ipconfig_get_prefixlen(
1146                                                 provider->ipconfig_ipv4);
1147
1148                 addr = 0xffffffff << (32 - prefixlen);
1149                 netmask.s_addr = htonl(addr);
1150                 mask = inet_ntoa(netmask);
1151
1152                 connman_dbus_dict_append_basic(iter, "Address",
1153                                                 DBUS_TYPE_STRING, &address);
1154
1155                 connman_dbus_dict_append_basic(iter, "Netmask",
1156                                                 DBUS_TYPE_STRING, &mask);
1157         }
1158
1159         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1160         if (gateway != NULL)
1161                 connman_dbus_dict_append_basic(iter, "Gateway",
1162                                                 DBUS_TYPE_STRING, &gateway);
1163
1164         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1165         if (peer != NULL)
1166                 connman_dbus_dict_append_basic(iter, "Peer",
1167                                                 DBUS_TYPE_STRING, &peer);
1168 }
1169
1170 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1171 {
1172         struct vpn_provider *provider = user_data;
1173         const char *address, *gateway, *peer;
1174
1175         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1176         if (address != NULL) {
1177                 unsigned char prefixlen;
1178
1179                 connman_dbus_dict_append_basic(iter, "Address",
1180                                                 DBUS_TYPE_STRING, &address);
1181
1182                 prefixlen = __vpn_ipconfig_get_prefixlen(
1183                                                 provider->ipconfig_ipv6);
1184
1185                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1186                                                 DBUS_TYPE_BYTE, &prefixlen);
1187         }
1188
1189         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1190         if (gateway != NULL)
1191                 connman_dbus_dict_append_basic(iter, "Gateway",
1192                                                 DBUS_TYPE_STRING, &gateway);
1193
1194         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1195         if (peer != NULL)
1196                 connman_dbus_dict_append_basic(iter, "Peer",
1197                                                 DBUS_TYPE_STRING, &peer);
1198 }
1199
1200 static const char *state2string(enum vpn_provider_state state)
1201 {
1202         switch (state) {
1203         case VPN_PROVIDER_STATE_UNKNOWN:
1204                 break;
1205         case VPN_PROVIDER_STATE_IDLE:
1206                 return "idle";
1207         case VPN_PROVIDER_STATE_CONNECT:
1208                 return "configuration";
1209         case VPN_PROVIDER_STATE_READY:
1210                 return "ready";
1211         case VPN_PROVIDER_STATE_DISCONNECT:
1212                 return "disconnect";
1213         case VPN_PROVIDER_STATE_FAILURE:
1214                 return "failure";
1215         }
1216
1217         return NULL;
1218 }
1219
1220 static int provider_indicate_state(struct vpn_provider *provider,
1221                                 enum vpn_provider_state state)
1222 {
1223         const char *str;
1224         enum vpn_provider_state old_state;
1225
1226         str = state2string(state);
1227         DBG("provider %p state %s/%d", provider, str, state);
1228         if (str == NULL)
1229                 return -EINVAL;
1230
1231         old_state = provider->state;
1232         provider->state = state;
1233
1234         if (state == VPN_PROVIDER_STATE_READY) {
1235                 connman_dbus_property_changed_basic(provider->path,
1236                                         VPN_CONNECTION_INTERFACE, "Index",
1237                                         DBUS_TYPE_INT32, &provider->index);
1238
1239                 if (provider->family == AF_INET)
1240                         connman_dbus_property_changed_dict(provider->path,
1241                                         VPN_CONNECTION_INTERFACE, "IPv4",
1242                                         append_ipv4, provider);
1243                 else if (provider->family == AF_INET6)
1244                         connman_dbus_property_changed_dict(provider->path,
1245                                         VPN_CONNECTION_INTERFACE, "IPv6",
1246                                         append_ipv6, provider);
1247         }
1248
1249         if (old_state != state)
1250                 connman_dbus_property_changed_basic(provider->path,
1251                                         VPN_CONNECTION_INTERFACE, "State",
1252                                         DBUS_TYPE_STRING, &str);
1253
1254         /*
1255          * We do not stay in failure state as clients like connmand can
1256          * get confused about our current state.
1257          */
1258         if (provider->state == VPN_PROVIDER_STATE_FAILURE)
1259                 provider->state = VPN_PROVIDER_STATE_IDLE;
1260
1261         return 0;
1262 }
1263
1264 static void append_nameservers(DBusMessageIter *iter, char **servers)
1265 {
1266         int i;
1267
1268         DBG("%p", servers);
1269
1270         for (i = 0; servers[i] != NULL; i++) {
1271                 DBG("servers[%d] %s", i, servers[i]);
1272                 dbus_message_iter_append_basic(iter,
1273                                         DBUS_TYPE_STRING, &servers[i]);
1274         }
1275 }
1276
1277 static void append_dns(DBusMessageIter *iter, void *user_data)
1278 {
1279         struct vpn_provider *provider = user_data;
1280
1281         if (provider->nameservers != NULL)
1282                 append_nameservers(iter, provider->nameservers);
1283 }
1284
1285 static void append_state(DBusMessageIter *iter,
1286                                         struct vpn_provider *provider)
1287 {
1288         char *str;
1289
1290         switch (provider->state) {
1291         case VPN_PROVIDER_STATE_UNKNOWN:
1292         case VPN_PROVIDER_STATE_IDLE:
1293                 str = "idle";
1294                 break;
1295         case VPN_PROVIDER_STATE_CONNECT:
1296                 str = "configuration";
1297                 break;
1298         case VPN_PROVIDER_STATE_READY:
1299                 str = "ready";
1300                 break;
1301         case VPN_PROVIDER_STATE_DISCONNECT:
1302                 str = "disconnect";
1303                 break;
1304         case VPN_PROVIDER_STATE_FAILURE:
1305                 str = "failure";
1306                 break;
1307         }
1308
1309         connman_dbus_dict_append_basic(iter, "State",
1310                                 DBUS_TYPE_STRING, &str);
1311 }
1312
1313 static void append_properties(DBusMessageIter *iter,
1314                                         struct vpn_provider *provider)
1315 {
1316         DBusMessageIter dict;
1317         GHashTableIter hash;
1318         gpointer value, key;
1319
1320         connman_dbus_dict_open(iter, &dict);
1321
1322         append_state(&dict, provider);
1323
1324         if (provider->type != NULL)
1325                 connman_dbus_dict_append_basic(&dict, "Type",
1326                                         DBUS_TYPE_STRING, &provider->type);
1327
1328         if (provider->name != NULL)
1329                 connman_dbus_dict_append_basic(&dict, "Name",
1330                                         DBUS_TYPE_STRING, &provider->name);
1331
1332         if (provider->host != NULL)
1333                 connman_dbus_dict_append_basic(&dict, "Host",
1334                                         DBUS_TYPE_STRING, &provider->host);
1335         if (provider->index >= 0)
1336                 connman_dbus_dict_append_basic(&dict, "Index",
1337                                         DBUS_TYPE_INT32, &provider->index);
1338         if (provider->domain != NULL)
1339                 connman_dbus_dict_append_basic(&dict, "Domain",
1340                                         DBUS_TYPE_STRING, &provider->domain);
1341
1342         if (provider->family == AF_INET)
1343                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1344                                                 provider);
1345         else if (provider->family == AF_INET6)
1346                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1347                                                 provider);
1348
1349         connman_dbus_dict_append_array(&dict, "Nameservers",
1350                                 DBUS_TYPE_STRING, append_dns, provider);
1351
1352         connman_dbus_dict_append_array(&dict, "UserRoutes",
1353                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1354                                 provider->user_routes);
1355
1356         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1357                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1358                                 provider->routes);
1359
1360         if (provider->setting_strings != NULL) {
1361                 g_hash_table_iter_init(&hash, provider->setting_strings);
1362
1363                 while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1364                         struct vpn_setting *setting = value;
1365
1366                         if (setting->hide_value == FALSE &&
1367                                                         setting->value != NULL)
1368                                 connman_dbus_dict_append_basic(&dict, key,
1369                                                         DBUS_TYPE_STRING,
1370                                                         &setting->value);
1371                 }
1372         }
1373
1374         connman_dbus_dict_close(iter, &dict);
1375 }
1376
1377 static void connection_added_signal(struct vpn_provider *provider)
1378 {
1379         DBusMessage *signal;
1380         DBusMessageIter iter;
1381
1382         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1383                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1384         if (signal == NULL)
1385                 return;
1386
1387         dbus_message_iter_init_append(signal, &iter);
1388         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1389                                                         &provider->path);
1390         append_properties(&iter, provider);
1391
1392         dbus_connection_send(connection, signal, NULL);
1393         dbus_message_unref(signal);
1394 }
1395
1396 static connman_bool_t check_host(char **hosts, char *host)
1397 {
1398         int i;
1399
1400         if (hosts == NULL)
1401                 return FALSE;
1402
1403         for (i = 0; hosts[i] != NULL; i++) {
1404                 if (g_strcmp0(hosts[i], host) == 0)
1405                         return TRUE;
1406         }
1407
1408         return FALSE;
1409 }
1410
1411 static void provider_append_routes(gpointer key, gpointer value,
1412                                         gpointer user_data)
1413 {
1414         struct vpn_route *route = value;
1415         struct vpn_provider *provider = user_data;
1416         int index = provider->index;
1417
1418         if (handle_routes == FALSE)
1419                 return;
1420
1421         /*
1422          * If the VPN administrator/user has given a route to
1423          * VPN server, then we must discard that because the
1424          * server cannot be contacted via VPN tunnel.
1425          */
1426         if (check_host(provider->host_ip, route->network) == TRUE) {
1427                 DBG("Discarding VPN route to %s via %s at index %d",
1428                         route->network, route->gateway, index);
1429                 return;
1430         }
1431
1432         if (route->family == AF_INET6) {
1433                 unsigned char prefix_len = atoi(route->netmask);
1434
1435                 connman_inet_add_ipv6_network_route(index, route->network,
1436                                                         route->gateway,
1437                                                         prefix_len);
1438         } else {
1439                 connman_inet_add_network_route(index, route->network,
1440                                                 route->gateway,
1441                                                 route->netmask);
1442         }
1443 }
1444
1445 static int set_connected(struct vpn_provider *provider,
1446                                         connman_bool_t connected)
1447 {
1448         struct vpn_ipconfig *ipconfig;
1449
1450         DBG("provider %p id %s connected %d", provider,
1451                                         provider->identifier, connected);
1452
1453         if (connected == TRUE) {
1454                 if (provider->family == AF_INET6)
1455                         ipconfig = provider->ipconfig_ipv6;
1456                 else
1457                         ipconfig = provider->ipconfig_ipv4;
1458
1459                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1460
1461                 if (handle_routes == TRUE)
1462                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1463
1464                 provider_indicate_state(provider,
1465                                         VPN_PROVIDER_STATE_READY);
1466
1467                 g_hash_table_foreach(provider->routes, provider_append_routes,
1468                                         provider);
1469
1470                 g_hash_table_foreach(provider->user_routes,
1471                                         provider_append_routes, provider);
1472
1473         } else {
1474                 provider_indicate_state(provider,
1475                                         VPN_PROVIDER_STATE_DISCONNECT);
1476
1477                 provider_indicate_state(provider,
1478                                         VPN_PROVIDER_STATE_IDLE);
1479         }
1480
1481         return 0;
1482 }
1483
1484 int vpn_provider_set_state(struct vpn_provider *provider,
1485                                         enum vpn_provider_state state)
1486 {
1487         if (provider == NULL)
1488                 return -EINVAL;
1489
1490         switch (state) {
1491         case VPN_PROVIDER_STATE_UNKNOWN:
1492                 return -EINVAL;
1493         case VPN_PROVIDER_STATE_IDLE:
1494                 return set_connected(provider, FALSE);
1495         case VPN_PROVIDER_STATE_CONNECT:
1496                 return provider_indicate_state(provider, state);
1497         case VPN_PROVIDER_STATE_READY:
1498                 return set_connected(provider, TRUE);
1499         case VPN_PROVIDER_STATE_DISCONNECT:
1500                 return provider_indicate_state(provider, state);
1501         case VPN_PROVIDER_STATE_FAILURE:
1502                 return provider_indicate_state(provider, state);
1503         }
1504         return -EINVAL;
1505 }
1506
1507 int vpn_provider_indicate_error(struct vpn_provider *provider,
1508                                         enum vpn_provider_error error)
1509 {
1510         DBG("provider %p id %s error %d", provider, provider->identifier,
1511                                                                         error);
1512
1513         switch (error) {
1514         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1515                 break;
1516         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1517                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1518                 break;
1519         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1520                 break;
1521         default:
1522                 break;
1523         }
1524
1525         return 0;
1526 }
1527
1528 static int connection_unregister(struct vpn_provider *provider)
1529 {
1530         DBG("provider %p path %s", provider, provider->path);
1531
1532         if (provider->path == NULL)
1533                 return -EALREADY;
1534
1535         g_dbus_unregister_interface(connection, provider->path,
1536                                 VPN_CONNECTION_INTERFACE);
1537
1538         g_free(provider->path);
1539         provider->path = NULL;
1540
1541         return 0;
1542 }
1543
1544 static int connection_register(struct vpn_provider *provider)
1545 {
1546         DBG("provider %p path %s", provider, provider->path);
1547
1548         if (provider->path != NULL)
1549                 return -EALREADY;
1550
1551         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1552                                                 provider->identifier);
1553
1554         g_dbus_register_interface(connection, provider->path,
1555                                 VPN_CONNECTION_INTERFACE,
1556                                 connection_methods, connection_signals,
1557                                 NULL, provider, NULL);
1558
1559         return 0;
1560 }
1561
1562 static void unregister_provider(gpointer data)
1563 {
1564         struct vpn_provider *provider = data;
1565
1566         configuration_count_del();
1567
1568         connection_unregister(provider);
1569
1570         vpn_provider_unref(provider);
1571 }
1572
1573 static void provider_initialize(struct vpn_provider *provider)
1574 {
1575         DBG("provider %p", provider);
1576
1577         provider->index = 0;
1578         provider->fd = -1;
1579         provider->name = NULL;
1580         provider->type = NULL;
1581         provider->domain = NULL;
1582         provider->identifier = NULL;
1583         provider->user_networks = NULL;
1584         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1585                                         NULL, free_route);
1586         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1587                                         g_free, free_route);
1588         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1589                                         g_str_equal, g_free, free_setting);
1590 }
1591
1592 static struct vpn_provider *vpn_provider_new(void)
1593 {
1594         struct vpn_provider *provider;
1595
1596         provider = g_try_new0(struct vpn_provider, 1);
1597         if (provider == NULL)
1598                 return NULL;
1599
1600         provider->refcount = 1;
1601
1602         DBG("provider %p", provider);
1603         provider_initialize(provider);
1604
1605         return provider;
1606 }
1607
1608 static struct vpn_provider *vpn_provider_get(const char *identifier)
1609 {
1610         struct vpn_provider *provider;
1611
1612         provider = g_hash_table_lookup(provider_hash, identifier);
1613         if (provider != NULL)
1614                 return provider;
1615
1616         provider = vpn_provider_new();
1617         if (provider == NULL)
1618                 return NULL;
1619
1620         DBG("provider %p", provider);
1621
1622         provider->identifier = g_strdup(identifier);
1623
1624         g_hash_table_insert(provider_hash, provider->identifier, provider);
1625
1626         configuration_count_add();
1627
1628         return provider;
1629 }
1630
1631 static void provider_dbus_ident(char *ident)
1632 {
1633         int i, len = strlen(ident);
1634
1635         for (i = 0; i < len; i++) {
1636                 if (ident[i] >= '0' && ident[i] <= '9')
1637                         continue;
1638                 if (ident[i] >= 'a' && ident[i] <= 'z')
1639                         continue;
1640                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1641                         continue;
1642                 ident[i] = '_';
1643         }
1644 }
1645
1646 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1647                 const char *ident)
1648 {
1649         struct vpn_provider *provider;
1650
1651         if (keyfile == NULL || ident == NULL)
1652                 return NULL;
1653
1654         provider = __vpn_provider_lookup(ident);
1655         if (provider == NULL) {
1656                 provider = vpn_provider_get(ident);
1657                 if (provider == NULL) {
1658                         DBG("can not create provider");
1659                         return NULL;
1660                 }
1661
1662                 provider_load_from_keyfile(provider, keyfile);
1663
1664                 if (provider->name == NULL || provider->host == NULL ||
1665                                 provider->domain == NULL) {
1666                         DBG("cannot get name, host or domain");
1667                         vpn_provider_unref(provider);
1668                         return NULL;
1669                 }
1670
1671                 if (provider_register(provider) == 0)
1672                         connection_register(provider);
1673         }
1674         return provider;
1675 }
1676
1677 static void provider_create_all_from_type(const char *provider_type)
1678 {
1679         unsigned int i;
1680         char **providers;
1681         char *id, *type;
1682         GKeyFile *keyfile;
1683
1684         DBG("provider type %s", provider_type);
1685
1686         providers = __connman_storage_get_providers();
1687
1688         if (providers == NULL)
1689                 return;
1690
1691         for (i = 0; providers[i] != NULL; i+=1) {
1692
1693                 if (strncmp(providers[i], "provider_", 9) != 0)
1694                         continue;
1695
1696                 id = providers[i] + 9;
1697                 keyfile = __connman_storage_load_provider(id);
1698
1699                 if (keyfile == NULL)
1700                         continue;
1701
1702                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1703
1704                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1705
1706                 if (strcmp(provider_type, type) != 0) {
1707                         g_free(type);
1708                         g_key_file_free(keyfile);
1709                         continue;
1710                 }
1711
1712                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1713                         DBG("could not create provider");
1714
1715                 g_free(type);
1716                 g_key_file_free(keyfile);
1717         }
1718         g_strfreev(providers);
1719 }
1720
1721 char *__vpn_provider_create_identifier(const char *host, const char *domain)
1722 {
1723         char *ident;
1724
1725         ident = g_strdup_printf("%s_%s", host, domain);
1726         if (ident == NULL)
1727                 return NULL;
1728
1729         provider_dbus_ident(ident);
1730
1731         return ident;
1732 }
1733
1734 int __vpn_provider_create(DBusMessage *msg)
1735 {
1736         struct vpn_provider *provider;
1737         DBusMessageIter iter, array;
1738         const char *type = NULL, *name = NULL;
1739         const char *host = NULL, *domain = NULL;
1740         GSList *networks = NULL;
1741         char *ident;
1742         int err;
1743
1744         dbus_message_iter_init(msg, &iter);
1745         dbus_message_iter_recurse(&iter, &array);
1746
1747         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1748                 DBusMessageIter entry, value;
1749                 const char *key;
1750
1751                 dbus_message_iter_recurse(&array, &entry);
1752                 dbus_message_iter_get_basic(&entry, &key);
1753
1754                 dbus_message_iter_next(&entry);
1755                 dbus_message_iter_recurse(&entry, &value);
1756
1757                 switch (dbus_message_iter_get_arg_type(&value)) {
1758                 case DBUS_TYPE_STRING:
1759                         if (g_str_equal(key, "Type") == TRUE)
1760                                 dbus_message_iter_get_basic(&value, &type);
1761                         else if (g_str_equal(key, "Name") == TRUE)
1762                                 dbus_message_iter_get_basic(&value, &name);
1763                         else if (g_str_equal(key, "Host") == TRUE)
1764                                 dbus_message_iter_get_basic(&value, &host);
1765                         else if (g_str_equal(key, "VPN.Domain") == TRUE ||
1766                                         g_str_equal(key, "Domain") == TRUE)
1767                                 dbus_message_iter_get_basic(&value, &domain);
1768                         break;
1769                 case DBUS_TYPE_ARRAY:
1770                         if (g_str_equal(key, "UserRoutes") == TRUE)
1771                                 networks = get_user_networks(&value);
1772                         break;
1773                 }
1774
1775                 dbus_message_iter_next(&array);
1776         }
1777
1778         if (host == NULL || domain == NULL)
1779                 return -EINVAL;
1780
1781         DBG("Type %s name %s networks %p", type, name, networks);
1782
1783         if (type == NULL || name == NULL)
1784                 return -EOPNOTSUPP;
1785
1786         ident = __vpn_provider_create_identifier(host, domain);
1787         DBG("ident %s", ident);
1788
1789         provider = __vpn_provider_lookup(ident);
1790         if (provider == NULL) {
1791                 provider = vpn_provider_get(ident);
1792                 if (provider == NULL) {
1793                         DBG("can not create provider");
1794                         g_free(ident);
1795                         return -EOPNOTSUPP;
1796                 }
1797
1798                 provider->host = g_strdup(host);
1799                 provider->domain = g_strdup(domain);
1800                 provider->name = g_strdup(name);
1801                 provider->type = g_strdup(type);
1802
1803                 if (provider_register(provider) == 0)
1804                         vpn_provider_load(provider);
1805
1806                 provider_resolv_host_addr(provider);
1807         }
1808
1809         if (networks != NULL) {
1810                 g_slist_free_full(provider->user_networks, free_route);
1811                 provider->user_networks = networks;
1812                 set_user_networks(provider, provider->user_networks);
1813         }
1814
1815         dbus_message_iter_init(msg, &iter);
1816         dbus_message_iter_recurse(&iter, &array);
1817
1818         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1819                 DBusMessageIter entry, value;
1820                 const char *key, *str;
1821
1822                 dbus_message_iter_recurse(&array, &entry);
1823                 dbus_message_iter_get_basic(&entry, &key);
1824
1825                 dbus_message_iter_next(&entry);
1826                 dbus_message_iter_recurse(&entry, &value);
1827
1828                 switch (dbus_message_iter_get_arg_type(&value)) {
1829                 case DBUS_TYPE_STRING:
1830                         dbus_message_iter_get_basic(&value, &str);
1831                         vpn_provider_set_string(provider, key, str);
1832                         break;
1833                 }
1834
1835                 dbus_message_iter_next(&array);
1836         }
1837
1838         g_free(ident);
1839
1840         vpn_provider_save(provider);
1841
1842         err = provider_register(provider);
1843         if (err != 0 && err != -EALREADY)
1844                 return err;
1845
1846         connection_register(provider);
1847
1848         DBG("provider %p index %d path %s", provider, provider->index,
1849                                                         provider->path);
1850
1851         g_dbus_send_reply(connection, msg,
1852                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1853                                 DBUS_TYPE_INVALID);
1854
1855         connection_added_signal(provider);
1856
1857         return 0;
1858 }
1859
1860 static const char *get_string(GHashTable *settings, const char *key)
1861 {
1862         DBG("settings %p key %s", settings, key);
1863
1864         return g_hash_table_lookup(settings, key);
1865 }
1866
1867 static GSList *parse_user_networks(const char *network_str)
1868 {
1869         GSList *networks = NULL;
1870         char **elems;
1871         int i = 0;
1872
1873         if (network_str == NULL)
1874                 return NULL;
1875
1876         elems = g_strsplit(network_str, ",", 0);
1877         if (elems == NULL)
1878                 return NULL;
1879
1880         while (elems[i] != NULL) {
1881                 struct vpn_route *vpn_route;
1882                 char *network, *netmask, *gateway;
1883                 int family;
1884                 char **route;
1885
1886                 route = g_strsplit(elems[i], "/", 0);
1887                 if (route == NULL)
1888                         goto next;
1889
1890                 network = route[0];
1891                 if (network == NULL || network[0] == '\0')
1892                         goto next;
1893
1894                 family = connman_inet_check_ipaddress(network);
1895                 if (family < 0) {
1896                         DBG("Cannot get address family of %s (%d/%s)", network,
1897                                 family, gai_strerror(family));
1898
1899                         goto next;
1900                 }
1901
1902                 switch (family) {
1903                 case AF_INET:
1904                         break;
1905                 case AF_INET6:
1906                         break;
1907                 default:
1908                         DBG("Unsupported address family %d", family);
1909                         goto next;
1910                 }
1911
1912                 netmask = route[1];
1913                 if (netmask == NULL || netmask[0] == '\0')
1914                         goto next;
1915
1916                 gateway = route[2];
1917
1918                 vpn_route = g_try_new0(struct vpn_route, 1);
1919                 if (vpn_route == NULL) {
1920                         g_strfreev(route);
1921                         break;
1922                 }
1923
1924                 vpn_route->family = family;
1925                 vpn_route->network = g_strdup(network);
1926                 vpn_route->netmask = g_strdup(netmask);
1927                 vpn_route->gateway = g_strdup(gateway);
1928
1929                 DBG("route %s/%s%s%s", network, netmask,
1930                         gateway ? " via " : "", gateway ? gateway : "");
1931
1932                 networks = g_slist_prepend(networks, vpn_route);
1933
1934         next:
1935                 g_strfreev(route);
1936                 i++;
1937         }
1938
1939         g_strfreev(elems);
1940
1941         return g_slist_reverse(networks);
1942 }
1943
1944 int __vpn_provider_create_from_config(GHashTable *settings,
1945                                 const char *config_ident,
1946                                 const char *config_entry)
1947 {
1948         struct vpn_provider *provider;
1949         const char *type, *name, *host, *domain, *networks_str;
1950         GSList *networks;
1951         char *ident = NULL;
1952         GHashTableIter hash;
1953         gpointer value, key;
1954         int err;
1955
1956         type = get_string(settings, "Type");
1957         name = get_string(settings, "Name");
1958         host = get_string(settings, "Host");
1959         domain = get_string(settings, "Domain");
1960         networks_str = get_string(settings, "Networks");
1961         networks = parse_user_networks(networks_str);
1962
1963         if (host == NULL || domain == NULL) {
1964                 err = -EINVAL;
1965                 goto fail;
1966         }
1967
1968         DBG("type %s name %s networks %s", type, name, networks_str);
1969
1970         if (type == NULL || name == NULL) {
1971                 err = -EOPNOTSUPP;
1972                 goto fail;
1973         }
1974
1975         ident = __vpn_provider_create_identifier(host, domain);
1976         DBG("ident %s", ident);
1977
1978         provider = __vpn_provider_lookup(ident);
1979         if (provider == NULL) {
1980                 provider = vpn_provider_get(ident);
1981                 if (provider == NULL) {
1982                         DBG("can not create provider");
1983                         err = -EOPNOTSUPP;
1984                         goto fail;
1985                 }
1986
1987                 provider->host = g_strdup(host);
1988                 provider->domain = g_strdup(domain);
1989                 provider->name = g_strdup(name);
1990                 provider->type = g_ascii_strdown(type, -1);
1991
1992                 provider->config_file = g_strdup(config_ident);
1993                 provider->config_entry = g_strdup(config_entry);
1994
1995                 if (provider_register(provider) == 0)
1996                         vpn_provider_load(provider);
1997
1998                 provider_resolv_host_addr(provider);
1999         }
2000
2001         if (networks != NULL) {
2002                 g_slist_free_full(provider->user_networks, free_route);
2003                 provider->user_networks = networks;
2004                 set_user_networks(provider, provider->user_networks);
2005         }
2006
2007         g_hash_table_iter_init(&hash, settings);
2008
2009         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE)
2010                 vpn_provider_set_string(provider, key, value);
2011
2012         vpn_provider_save(provider);
2013
2014         err = provider_register(provider);
2015         if (err != 0 && err != -EALREADY)
2016                 goto fail;
2017
2018         connection_register(provider);
2019
2020         DBG("provider %p index %d path %s", provider, provider->index,
2021                                                         provider->path);
2022
2023         connection_added_signal(provider);
2024
2025         g_free(ident);
2026
2027         return 0;
2028
2029 fail:
2030         g_free(ident);
2031         g_slist_free_full(networks, free_route);
2032
2033         return err;
2034 }
2035
2036 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
2037 {
2038         DBusMessageIter entry;
2039         GHashTableIter hash;
2040         gpointer value, key;
2041
2042         g_hash_table_iter_init(&hash, provider_hash);
2043
2044         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
2045                 struct vpn_provider *provider = value;
2046
2047                 DBG("path %s", provider->path);
2048
2049                 if (provider->identifier == NULL)
2050                         continue;
2051
2052                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
2053                                 NULL, &entry);
2054                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
2055                                 &provider->path);
2056                 append_properties(&entry, provider);
2057                 dbus_message_iter_close_container(iter, &entry);
2058         }
2059 }
2060
2061 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
2062 {
2063         DBusMessage *reply;
2064
2065         DBG("");
2066
2067         reply = dbus_message_new_method_return(msg);
2068         if (reply == NULL)
2069                 return NULL;
2070
2071         __connman_dbus_append_objpath_dict_array(reply,
2072                         append_connection_structs, NULL);
2073
2074         return reply;
2075 }
2076
2077 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
2078 {
2079         if (provider == NULL)
2080                 return NULL;
2081
2082         return provider->identifier;
2083 }
2084
2085 static int set_string(struct vpn_provider *provider,
2086                 const char *key, const char *value, gboolean hide_value)
2087 {
2088         DBG("provider %p key %s value %s", provider, key,
2089                 hide_value ? "<not printed>" : value);
2090
2091         if (g_str_equal(key, "Type") == TRUE) {
2092                 g_free(provider->type);
2093                 provider->type = g_ascii_strdown(value, -1);
2094                 send_value(provider->path, "Type", provider->type);
2095         } else if (g_str_equal(key, "Name") == TRUE) {
2096                 g_free(provider->name);
2097                 provider->name = g_strdup(value);
2098                 send_value(provider->path, "Name", provider->name);
2099         } else if (g_str_equal(key, "Host") == TRUE) {
2100                 g_free(provider->host);
2101                 provider->host = g_strdup(value);
2102                 send_value(provider->path, "Host", provider->host);
2103         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2104                         g_str_equal(key, "Domain") == TRUE) {
2105                 g_free(provider->domain);
2106                 provider->domain = g_strdup(value);
2107                 send_value(provider->path, "Domain", provider->domain);
2108         } else {
2109                 struct vpn_setting *setting;
2110
2111                 setting = g_try_new(struct vpn_setting, 1);
2112                 if (setting == NULL)
2113                         return -ENOMEM;
2114
2115                 setting->value = g_strdup(value);
2116                 setting->hide_value = hide_value;
2117
2118                 if (hide_value == FALSE)
2119                         send_value(provider->path, key, setting->value);
2120
2121                 g_hash_table_replace(provider->setting_strings,
2122                                 g_strdup(key), setting);
2123         }
2124
2125         return 0;
2126 }
2127
2128 int vpn_provider_set_string(struct vpn_provider *provider,
2129                                         const char *key, const char *value)
2130 {
2131         return set_string(provider, key, value, FALSE);
2132 }
2133
2134 int vpn_provider_set_string_hide_value(struct vpn_provider *provider,
2135                                         const char *key, const char *value)
2136 {
2137         return set_string(provider, key, value, TRUE);
2138 }
2139
2140 const char *vpn_provider_get_string(struct vpn_provider *provider,
2141                                                         const char *key)
2142 {
2143         struct vpn_setting *setting;
2144
2145         DBG("provider %p key %s", provider, key);
2146
2147         if (g_str_equal(key, "Type") == TRUE)
2148                 return provider->type;
2149         else if (g_str_equal(key, "Name") == TRUE)
2150                 return provider->name;
2151         else if (g_str_equal(key, "Host") == TRUE)
2152                 return provider->host;
2153         else if (g_str_equal(key, "HostIP") == TRUE) {
2154                 if (provider->host_ip == NULL ||
2155                                 provider->host_ip[0] == NULL)
2156                         return provider->host;
2157                 else
2158                         return provider->host_ip[0];
2159         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2160                         g_str_equal(key, "Domain") == TRUE)
2161                 return provider->domain;
2162
2163         setting = g_hash_table_lookup(provider->setting_strings, key);
2164         if (setting == NULL)
2165                 return NULL;
2166
2167         return setting->value;
2168 }
2169
2170 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
2171 {
2172         if (provider == NULL)
2173                 return FALSE;
2174
2175         if (provider->user_routes != NULL &&
2176                         g_hash_table_size(provider->user_routes) > 0)
2177                 return TRUE;
2178
2179         if (provider->routes != NULL &&
2180                         g_hash_table_size(provider->routes) > 0)
2181                 return TRUE;
2182
2183         return FALSE;
2184 }
2185
2186 void *vpn_provider_get_data(struct vpn_provider *provider)
2187 {
2188         return provider->driver_data;
2189 }
2190
2191 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
2192 {
2193         provider->driver_data = data;
2194 }
2195
2196 void vpn_provider_set_index(struct vpn_provider *provider, int index)
2197 {
2198         DBG("index %d provider %p", index, provider);
2199
2200         if (provider->ipconfig_ipv4 == NULL) {
2201                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
2202                                                                 AF_INET);
2203                 if (provider->ipconfig_ipv4 == NULL) {
2204                         DBG("Couldnt create ipconfig for IPv4");
2205                         goto done;
2206                 }
2207         }
2208
2209         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
2210
2211         if (provider->ipconfig_ipv6 == NULL) {
2212                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
2213                                                                 AF_INET6);
2214                 if (provider->ipconfig_ipv6 == NULL) {
2215                         DBG("Couldnt create ipconfig for IPv6");
2216                         goto done;
2217                 }
2218         }
2219
2220         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
2221
2222 done:
2223         provider->index = index;
2224 }
2225
2226 int vpn_provider_get_index(struct vpn_provider *provider)
2227 {
2228         return provider->index;
2229 }
2230
2231 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
2232                                         struct connman_ipaddress *ipaddress)
2233 {
2234         struct vpn_ipconfig *ipconfig = NULL;
2235
2236         switch (ipaddress->family) {
2237         case AF_INET:
2238                 ipconfig = provider->ipconfig_ipv4;
2239                 break;
2240         case AF_INET6:
2241                 ipconfig = provider->ipconfig_ipv6;
2242                 break;
2243         default:
2244                 break;
2245         }
2246
2247         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
2248                                                         ipaddress->family);
2249
2250         if (ipconfig == NULL)
2251                 return -EINVAL;
2252
2253         provider->family = ipaddress->family;
2254
2255         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
2256         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
2257         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
2258         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
2259         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
2260
2261         return 0;
2262 }
2263
2264 int vpn_provider_set_pac(struct vpn_provider *provider,
2265                                 const char *pac)
2266 {
2267         DBG("provider %p pac %s", provider, pac);
2268
2269         return 0;
2270 }
2271
2272
2273 int vpn_provider_set_domain(struct vpn_provider *provider,
2274                                         const char *domain)
2275 {
2276         DBG("provider %p domain %s", provider, domain);
2277
2278         g_free(provider->domain);
2279         provider->domain = g_strdup(domain);
2280
2281         return 0;
2282 }
2283
2284 int vpn_provider_set_nameservers(struct vpn_provider *provider,
2285                                         const char *nameservers)
2286 {
2287         DBG("provider %p nameservers %s", provider, nameservers);
2288
2289         g_strfreev(provider->nameservers);
2290         provider->nameservers = NULL;
2291
2292         if (nameservers == NULL)
2293                 return 0;
2294
2295         provider->nameservers = g_strsplit(nameservers, " ", 0);
2296
2297         return 0;
2298 }
2299
2300 enum provider_route_type {
2301         PROVIDER_ROUTE_TYPE_NONE = 0,
2302         PROVIDER_ROUTE_TYPE_MASK = 1,
2303         PROVIDER_ROUTE_TYPE_ADDR = 2,
2304         PROVIDER_ROUTE_TYPE_GW   = 3,
2305 };
2306
2307 static int route_env_parse(struct vpn_provider *provider, const char *key,
2308                                 int *family, unsigned long *idx,
2309                                 enum provider_route_type *type)
2310 {
2311         char *end;
2312         const char *start;
2313
2314         DBG("name %s", provider->name);
2315
2316         if (!strcmp(provider->type, "openvpn")) {
2317                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
2318                         start = key + strlen("route_network_");
2319                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2320                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2321                         start = key + strlen("route_netmask_");
2322                         *type = PROVIDER_ROUTE_TYPE_MASK;
2323                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2324                         start = key + strlen("route_gateway_");
2325                         *type = PROVIDER_ROUTE_TYPE_GW;
2326                 } else
2327                         return -EINVAL;
2328
2329                 *family = AF_INET;
2330                 *idx = g_ascii_strtoull(start, &end, 10);
2331
2332         } else if (!strcmp(provider->type, "openconnect")) {
2333                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2334                         *family = AF_INET;
2335                         start = key + strlen("CISCO_SPLIT_INC_");
2336                 } else if (g_str_has_prefix(key,
2337                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2338                         *family = AF_INET6;
2339                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2340                 } else
2341                         return -EINVAL;
2342
2343                 *idx = g_ascii_strtoull(start, &end, 10);
2344
2345                 if (strncmp(end, "_ADDR", 5) == 0)
2346                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2347                 else if (strncmp(end, "_MASK", 5) == 0)
2348                         *type = PROVIDER_ROUTE_TYPE_MASK;
2349                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2350                                 *family == AF_INET6) {
2351                         *type = PROVIDER_ROUTE_TYPE_MASK;
2352                 } else
2353                         return -EINVAL;
2354         }
2355
2356         return 0;
2357 }
2358
2359 int vpn_provider_append_route(struct vpn_provider *provider,
2360                                         const char *key, const char *value)
2361 {
2362         struct vpn_route *route;
2363         int ret, family = 0;
2364         unsigned long idx = 0;
2365         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2366
2367         DBG("key %s value %s", key, value);
2368
2369         ret = route_env_parse(provider, key, &family, &idx, &type);
2370         if (ret < 0)
2371                 return ret;
2372
2373         DBG("idx %lu family %d type %d", idx, family, type);
2374
2375         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2376         if (route == NULL) {
2377                 route = g_try_new0(struct vpn_route, 1);
2378                 if (route == NULL) {
2379                         connman_error("out of memory");
2380                         return -ENOMEM;
2381                 }
2382
2383                 route->family = family;
2384
2385                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2386                                                 route);
2387         }
2388
2389         switch (type) {
2390         case PROVIDER_ROUTE_TYPE_NONE:
2391                 break;
2392         case PROVIDER_ROUTE_TYPE_MASK:
2393                 route->netmask = g_strdup(value);
2394                 break;
2395         case PROVIDER_ROUTE_TYPE_ADDR:
2396                 route->network = g_strdup(value);
2397                 break;
2398         case PROVIDER_ROUTE_TYPE_GW:
2399                 route->gateway = g_strdup(value);
2400                 break;
2401         }
2402
2403         if (handle_routes == FALSE) {
2404                 if (route->netmask != NULL && route->gateway != NULL &&
2405                                                         route->network != NULL)
2406                         provider_schedule_changed(provider);
2407         }
2408
2409         return 0;
2410 }
2411
2412 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2413 {
2414         if (provider->driver == NULL)
2415                 return NULL;
2416
2417         return provider->driver->name;
2418 }
2419
2420 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2421 {
2422         return provider->identifier;
2423 }
2424
2425 static gint compare_priority(gconstpointer a, gconstpointer b)
2426 {
2427         return 0;
2428 }
2429
2430 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2431 {
2432         struct vpn_provider *provider = value;
2433
2434         if (provider->driver != NULL && provider->driver->remove)
2435                 provider->driver->remove(provider);
2436
2437         connection_unregister(provider);
2438 }
2439
2440 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2441 {
2442         DBG("driver %p name %s", driver, driver->name);
2443
2444         driver_list = g_slist_insert_sorted(driver_list, driver,
2445                                                         compare_priority);
2446         provider_create_all_from_type(driver->name);
2447         return 0;
2448 }
2449
2450 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2451 {
2452         GHashTableIter iter;
2453         gpointer value, key;
2454
2455         DBG("driver %p name %s", driver, driver->name);
2456
2457         driver_list = g_slist_remove(driver_list, driver);
2458
2459         g_hash_table_iter_init(&iter, provider_hash);
2460         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2461                 struct vpn_provider *provider = value;
2462
2463                 if (provider != NULL && provider->driver != NULL &&
2464                                 provider->driver->type == driver->type &&
2465                                 g_strcmp0(provider->driver->name,
2466                                                         driver->name) == 0) {
2467                         provider->driver = NULL;
2468                 }
2469         }
2470 }
2471
2472 const char *vpn_provider_get_name(struct vpn_provider *provider)
2473 {
2474         return provider->name;
2475 }
2476
2477 const char *vpn_provider_get_host(struct vpn_provider *provider)
2478 {
2479         return provider->host;
2480 }
2481
2482 const char *vpn_provider_get_path(struct vpn_provider *provider)
2483 {
2484         return provider->path;
2485 }
2486
2487 static int agent_probe(struct connman_agent *agent)
2488 {
2489         DBG("agent %p", agent);
2490         return 0;
2491 }
2492
2493 static void agent_remove(struct connman_agent *agent)
2494 {
2495         DBG("agent %p", agent);
2496 }
2497
2498 static struct connman_agent_driver agent_driver = {
2499         .name           = "vpn",
2500         .interface      = VPN_AGENT_INTERFACE,
2501         .probe          = agent_probe,
2502         .remove         = agent_remove,
2503 };
2504
2505 static void remove_unprovisioned_providers()
2506 {
2507         gchar **providers;
2508         GKeyFile *keyfile, *configkeyfile;
2509         char *file, *section;
2510         int i = 0;
2511
2512         providers = __connman_storage_get_providers();
2513         if (providers == NULL)
2514                 return;
2515
2516         for (; providers[i] != NULL; i++) {
2517                 char *group = providers[i] + sizeof("provider_") - 1;
2518                 file = section = NULL;
2519                 keyfile = configkeyfile = NULL;
2520
2521                 keyfile = __connman_storage_load_provider(group);
2522                 if (keyfile == NULL)
2523                         continue;
2524
2525                 file = g_key_file_get_string(keyfile, group,
2526                                         "Config.file", NULL);
2527                 if (file == NULL)
2528                         goto next;
2529
2530                 section = g_key_file_get_string(keyfile, group,
2531                                         "Config.ident", NULL);
2532                 if (section == NULL)
2533                         goto next;
2534
2535                 configkeyfile = __connman_storage_load_provider_config(file);
2536                 if (configkeyfile == NULL) {
2537                         /*
2538                          * Config file is missing, remove the provisioned
2539                          * service.
2540                          */
2541                         __connman_storage_remove_provider(group);
2542                         goto next;
2543                 }
2544
2545                 if (g_key_file_has_group(configkeyfile, section) == FALSE)
2546                         /*
2547                          * Config section is missing, remove the provisioned
2548                          * service.
2549                          */
2550                         __connman_storage_remove_provider(group);
2551
2552         next:
2553                 if (keyfile != NULL)
2554                         g_key_file_free(keyfile);
2555
2556                 if (configkeyfile != NULL)
2557                         g_key_file_free(configkeyfile);
2558
2559                 g_free(section);
2560                 g_free(file);
2561         }
2562
2563         g_strfreev(providers);
2564 }
2565
2566 int __vpn_provider_init(gboolean do_routes)
2567 {
2568         int err;
2569
2570         DBG("");
2571
2572         handle_routes = do_routes;
2573
2574         err = connman_agent_driver_register(&agent_driver);
2575         if (err < 0) {
2576                 connman_error("Cannot register agent driver for %s",
2577                                                 agent_driver.name);
2578                 return err;
2579         }
2580
2581         connection = connman_dbus_get_connection();
2582
2583         remove_unprovisioned_providers();
2584
2585         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2586                                                 NULL, unregister_provider);
2587         return 0;
2588 }
2589
2590 void __vpn_provider_cleanup(void)
2591 {
2592         DBG("");
2593
2594         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2595
2596         g_hash_table_destroy(provider_hash);
2597         provider_hash = NULL;
2598
2599         connman_agent_driver_unregister(&agent_driver);
2600
2601         dbus_connection_unref(connection);
2602 }