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         gboolean immutable;
  57         char *value;
  58 };
  59
  60 struct vpn_provider {
  61         int refcount;
  62         int index;
  63         int fd;
  64         enum vpn_provider_state state;
  65         char *path;
  66         char *identifier;
  67         char *name;
  68         char *type;
  69         char *host;
  70         char *domain;
  71         int family;
  72         GHashTable *routes;
  73         struct vpn_provider_driver *driver;
  74         void *driver_data;
  75         GHashTable *setting_strings;
  76         GHashTable *user_routes;
  77         GSList *user_networks;
  78         GResolv *resolv;
  79         char **host_ip;
  80         struct vpn_ipconfig *ipconfig_ipv4;
  81         struct vpn_ipconfig *ipconfig_ipv6;
  82         char **nameservers;
  83         guint notify_id;
  84         char *config_file;
  85         char *config_entry;
  86         connman_bool_t immutable;
  87 };
  88
  89 static void append_properties(DBusMessageIter *iter,
  90                                 struct vpn_provider *provider);
  91
  92 static void free_route(gpointer data)
  93 {
  94         struct vpn_route *route = data;
  95
  96         g_free(route->network);
  97         g_free(route->netmask);
  98         g_free(route->gateway);
  99
 100         g_free(route);
 101 }
 102
 103 static void free_setting(gpointer data)
 104 {
 105         struct vpn_setting *setting = data;
 106
 107         g_free(setting->value);
 108         g_free(setting);
 109 }
 110
 111 static void append_route(DBusMessageIter *iter, void *user_data)
 112 {
 113         struct vpn_route *route = user_data;
 114         DBusMessageIter item;
 115         int family = 0;
 116
 117         connman_dbus_dict_open(iter, &item);
 118
 119         if (route == NULL)
 120                 goto empty_dict;
 121
 122         if (route->family == AF_INET)
 123                 family = 4;
 124         else if (route->family == AF_INET6)
 125                 family = 6;
 126
 127         if (family != 0)
 128                 connman_dbus_dict_append_basic(&item, "ProtocolFamily",
 129                                         DBUS_TYPE_INT32, &family);
 130
 131         if (route->network != NULL)
 132                 connman_dbus_dict_append_basic(&item, "Network",
 133                                         DBUS_TYPE_STRING, &route->network);
 134
 135         if (route->netmask != NULL)
 136                 connman_dbus_dict_append_basic(&item, "Netmask",
 137                                         DBUS_TYPE_STRING, &route->netmask);
 138
 139         if (route->gateway != NULL)
 140                 connman_dbus_dict_append_basic(&item, "Gateway",
 141                                         DBUS_TYPE_STRING, &route->gateway);
 142
 143 empty_dict:
 144         connman_dbus_dict_close(iter, &item);
 145 }
 146
 147 static void append_routes(DBusMessageIter *iter, void *user_data)
 148 {
 149         GHashTable *routes = user_data;
 150         GHashTableIter hash;
 151         gpointer value, key;
 152
 153         if (routes == NULL) {
 154                 append_route(iter, NULL);
 155                 return;
 156         }
 157
 158         g_hash_table_iter_init(&hash, routes);
 159
 160         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
 161                 DBusMessageIter dict;
 162
 163                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT, NULL,
 164                                                 &dict);
 165                 append_route(&dict, value);
 166                 dbus_message_iter_close_container(iter, &dict);
 167         }
 168 }
 169
 170 static void send_routes(struct vpn_provider *provider, GHashTable *routes,
 171                         const char *name)
 172 {
 173         connman_dbus_property_changed_array(provider->path,
 174                                         VPN_CONNECTION_INTERFACE,
 175                                         name,
 176                                         DBUS_TYPE_DICT_ENTRY,
 177                                         append_routes,
 178                                         routes);
 179 }
 180
 181 static int provider_routes_changed(struct vpn_provider *provider)
 182 {
 183         DBG("provider %p", provider);
 184
 185         send_routes(provider, provider->routes, "ServerRoutes");
 186
 187         return 0;
 188 }
 189
 190 static GSList *read_route_dict(GSList *routes, DBusMessageIter *dicts)
 191 {
 192         DBusMessageIter dict, value, entry;
 193         const char *network, *netmask, *gateway;
 194         struct vpn_route *route;
 195         int family, type;
 196         const char *key;
 197
 198         dbus_message_iter_recurse(dicts, &entry);
 199
 200         network = netmask = gateway = NULL;
 201         family = PF_UNSPEC;
 202
 203         while (dbus_message_iter_get_arg_type(&entry) == DBUS_TYPE_DICT_ENTRY) {
 204
 205                 dbus_message_iter_recurse(&entry, &dict);
 206                 dbus_message_iter_get_basic(&dict, &key);
 207
 208                 dbus_message_iter_next(&dict);
 209                 dbus_message_iter_recurse(&dict, &value);
 210
 211                 type = dbus_message_iter_get_arg_type(&value);
 212
 213                 switch (type) {
 214                 case DBUS_TYPE_STRING:
 215                         if (g_str_equal(key, "ProtocolFamily") == TRUE)
 216                                 dbus_message_iter_get_basic(&value, &family);
 217                         else if (g_str_equal(key, "Network") == TRUE)
 218                                 dbus_message_iter_get_basic(&value, &network);
 219                         else if (g_str_equal(key, "Netmask") == TRUE)
 220                                 dbus_message_iter_get_basic(&value, &netmask);
 221                         else if (g_str_equal(key, "Gateway") == TRUE)
 222                                 dbus_message_iter_get_basic(&value, &gateway);
 223                         break;
 224                 }
 225
 226                 dbus_message_iter_next(&entry);
 227         }
 228
 229         DBG("family %d network %s netmask %s gateway %s", family,
 230                 network, netmask, gateway);
 231
 232         if (network == NULL || netmask == NULL) {
 233                 DBG("Ignoring route as network/netmask is missing");
 234                 return routes;
 235         }
 236
 237         route = g_try_new(struct vpn_route, 1);
 238         if (route == NULL) {
 239                 g_slist_free_full(routes, free_route);
 240                 return NULL;
 241         }
 242
 243         if (family == PF_UNSPEC) {
 244                 family = connman_inet_check_ipaddress(network);
 245                 if (family < 0) {
 246                         DBG("Cannot get address family of %s (%d/%s)", network,
 247                                 family, gai_strerror(family));
 248
 249                         g_free(route);
 250                         return routes;
 251                 }
 252         } else {
 253                 switch (family) {
 254                 case '4':
 255                         family = AF_INET;
 256                         break;
 257                 case '6':
 258                         family = AF_INET6;
 259                         break;
 260                 default:
 261                         family = PF_UNSPEC;
 262                         break;
 263                 }
 264         }
 265
 266         route->family = family;
 267         route->network = g_strdup(network);
 268         route->netmask = g_strdup(netmask);
 269         route->gateway = g_strdup(gateway);
 270
 271         routes = g_slist_prepend(routes, route);
 272         return routes;
 273 }
 274
 275 static GSList *get_user_networks(DBusMessageIter *array)
 276 {
 277         DBusMessageIter entry;
 278         GSList *list = NULL;
 279
 280         while (dbus_message_iter_get_arg_type(array) == DBUS_TYPE_ARRAY) {
 281
 282                 dbus_message_iter_recurse(array, &entry);
 283
 284                 while (dbus_message_iter_get_arg_type(&entry) ==
 285                                                         DBUS_TYPE_STRUCT) {
 286                         DBusMessageIter dicts;
 287
 288                         dbus_message_iter_recurse(&entry, &dicts);
 289
 290                         while (dbus_message_iter_get_arg_type(&dicts) ==
 291                                                         DBUS_TYPE_ARRAY) {
 292
 293                                 list = read_route_dict(list, &dicts);
 294                                 dbus_message_iter_next(&dicts);
 295                         }
 296
 297                         dbus_message_iter_next(&entry);
 298                 }
 299
 300                 dbus_message_iter_next(array);
 301         }
 302
 303         return list;
 304 }
 305
 306 static void set_user_networks(struct vpn_provider *provider, GSList *networks)
 307 {
 308         GSList *list;
 309
 310         for (list = networks; list != NULL; list = g_slist_next(list)) {
 311                 struct vpn_route *route = list->data;
 312
 313                 if (__vpn_provider_append_user_route(provider,
 314                                         route->family, route->network,
 315                                         route->netmask, route->gateway) != 0)
 316                         break;
 317         }
 318 }
 319
 320 static void del_routes(struct vpn_provider *provider)
 321 {
 322         GHashTableIter hash;
 323         gpointer value, key;
 324
 325         g_hash_table_iter_init(&hash, provider->user_routes);
 326         while (handle_routes == TRUE && g_hash_table_iter_next(&hash,
 327                                                 &key, &value) == TRUE) {
 328                 struct vpn_route *route = value;
 329                 if (route->family == AF_INET6) {
 330                         unsigned char prefixlen = atoi(route->netmask);
 331                         connman_inet_del_ipv6_network_route(provider->index,
 332                                                         route->network,
 333                                                         prefixlen);
 334                 } else
 335                         connman_inet_del_host_route(provider->index,
 336                                                 route->network);
 337         }
 338
 339         g_hash_table_remove_all(provider->user_routes);
 340         g_slist_free_full(provider->user_networks, free_route);
 341         provider->user_networks = NULL;
 342 }
 343
 344 static void send_value(const char *path, const char *key, const char *value)
 345 {
 346         const char *empty = "";
 347         const char *str;
 348
 349         if (value != NULL)
 350                 str = value;
 351         else
 352                 str = empty;
 353
 354         connman_dbus_property_changed_basic(path,
 355                                         VPN_CONNECTION_INTERFACE,
 356                                         key,
 357                                         DBUS_TYPE_STRING,
 358                                         &str);
 359 }
 360
 361 static gboolean provider_send_changed(gpointer data)
 362 {
 363         struct vpn_provider *provider = data;
 364
 365         provider_routes_changed(provider);
 366
 367         provider->notify_id = 0;
 368
 369         return FALSE;
 370 }
 371
 372 static void provider_schedule_changed(struct vpn_provider *provider)
 373 {
 374         if (provider->notify_id != 0)
 375                 g_source_remove(provider->notify_id);
 376
 377         provider->notify_id = g_timeout_add(100, provider_send_changed,
 378                                                                 provider);
 379 }
 380
 381 static DBusMessage *get_properties(DBusConnection *conn,
 382                                         DBusMessage *msg, void *data)
 383 {
 384         struct vpn_provider *provider = data;
 385         DBusMessage *reply;
 386         DBusMessageIter array;
 387
 388         DBG("provider %p", provider);
 389
 390         reply = dbus_message_new_method_return(msg);
 391         if (reply == NULL)
 392                 return NULL;
 393
 394         dbus_message_iter_init_append(reply, &array);
 395
 396         append_properties(&array, provider);
 397
 398         return reply;
 399 }
 400
 401 static DBusMessage *set_property(DBusConnection *conn, DBusMessage *msg,
 402                                                                 void *data)
 403 {
 404         struct vpn_provider *provider = data;
 405         DBusMessageIter iter, value;
 406         const char *name;
 407         int type;
 408
 409         DBG("conn %p", conn);
 410
 411         if (provider->immutable == TRUE)
 412                 return __connman_error_not_supported(msg);
 413
 414         if (dbus_message_iter_init(msg, &iter) == FALSE)
 415                 return __connman_error_invalid_arguments(msg);
 416
 417         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 418                 return __connman_error_invalid_arguments(msg);
 419
 420         dbus_message_iter_get_basic(&iter, &name);
 421         dbus_message_iter_next(&iter);
 422
 423         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 424                 return __connman_error_invalid_arguments(msg);
 425
 426         dbus_message_iter_recurse(&iter, &value);
 427
 428         type = dbus_message_iter_get_arg_type(&value);
 429
 430         if (g_str_equal(name, "UserRoutes") == TRUE) {
 431                 GSList *networks;
 432
 433                 if (type != DBUS_TYPE_ARRAY)
 434                         return __connman_error_invalid_arguments(msg);
 435
 436                 networks = get_user_networks(&value);
 437                 if (networks != NULL) {
 438                         del_routes(provider);
 439                         provider->user_networks = networks;
 440                         set_user_networks(provider, provider->user_networks);
 441
 442                         if (handle_routes == FALSE)
 443                                 send_routes(provider, provider->user_routes,
 444                                                                 "UserRoutes");
 445                 }
 446         } else {
 447                 const char *str;
 448
 449                 dbus_message_iter_get_basic(&value, &str);
 450                 vpn_provider_set_string(provider, name, str);
 451         }
 452
 453         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 454 }
 455
 456 static DBusMessage *clear_property(DBusConnection *conn, DBusMessage *msg,
 457                                                                 void *data)
 458 {
 459         struct vpn_provider *provider = data;
 460         const char *name;
 461
 462         DBG("conn %p", conn);
 463
 464         if (provider->immutable == TRUE)
 465                 return __connman_error_not_supported(msg);
 466
 467         dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &name,
 468                                                         DBUS_TYPE_INVALID);
 469
 470         if (g_str_equal(name, "UserRoutes") == TRUE) {
 471                 del_routes(provider);
 472
 473                 if (handle_routes == FALSE)
 474                         send_routes(provider, provider->user_routes, name);
 475         } else if (vpn_provider_get_string(provider, name) != NULL) {
 476                 vpn_provider_set_string(provider, name, NULL);
 477         } else {
 478                 return __connman_error_invalid_property(msg);
 479         }
 480
 481         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 482 }
 483
 484 static DBusMessage *do_connect(DBusConnection *conn, DBusMessage *msg,
 485                                                                 void *data)
 486 {
 487         struct vpn_provider *provider = data;
 488         int err;
 489
 490         DBG("conn %p provider %p", conn, provider);
 491
 492         err = __vpn_provider_connect(provider, msg);
 493         if (err < 0)
 494                 return __connman_error_failed(msg, -err);
 495
 496         return NULL;
 497 }
 498
 499 static DBusMessage *do_disconnect(DBusConnection *conn, DBusMessage *msg,
 500                                                                 void *data)
 501 {
 502         struct vpn_provider *provider = data;
 503         int err;
 504
 505         DBG("conn %p provider %p", conn, provider);
 506
 507         err = __vpn_provider_disconnect(provider);
 508         if (err < 0 && err != -EINPROGRESS)
 509                 return __connman_error_failed(msg, -err);
 510
 511         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 512 }
 513
 514 static const GDBusMethodTable connection_methods[] = {
 515         { GDBUS_METHOD("GetProperties",
 516                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 517                         get_properties) },
 518         { GDBUS_METHOD("SetProperty",
 519                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 520                         NULL, set_property) },
 521         { GDBUS_METHOD("ClearProperty",
 522                         GDBUS_ARGS({ "name", "s" }), NULL,
 523                         clear_property) },
 524         { GDBUS_ASYNC_METHOD("Connect", NULL, NULL, do_connect) },
 525         { GDBUS_METHOD("Disconnect", NULL, NULL, do_disconnect) },
 526         { },
 527 };
 528
 529 static const GDBusSignalTable connection_signals[] = {
 530         { GDBUS_SIGNAL("PropertyChanged",
 531                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 532         { },
 533 };
 534
 535 static void resolv_result(GResolvResultStatus status,
 536                                         char **results, gpointer user_data)
 537 {
 538         struct vpn_provider *provider = user_data;
 539
 540         DBG("status %d", status);
 541
 542         if (status == G_RESOLV_RESULT_STATUS_SUCCESS && results != NULL &&
 543                                                 g_strv_length(results) > 0)
 544                 provider->host_ip = g_strdupv(results);
 545
 546         vpn_provider_unref(provider);
 547 }
 548
 549 static void provider_resolv_host_addr(struct vpn_provider *provider)
 550 {
 551         if (provider->host == NULL)
 552                 return;
 553
 554         if (connman_inet_check_ipaddress(provider->host) > 0)
 555                 return;
 556
 557         if (provider->host_ip != NULL)
 558                 return;
 559
 560         /*
 561          * If the hostname is not numeric, try to resolv it. We do not wait
 562          * the result as it might take some time. We will get the result
 563          * before VPN will feed routes to us because VPN client will need
 564          * the IP address also before VPN connection can be established.
 565          */
 566         provider->resolv = g_resolv_new(0);
 567         if (provider->resolv == NULL) {
 568                 DBG("Cannot resolv %s", provider->host);
 569                 return;
 570         }
 571
 572         DBG("Trying to resolv %s", provider->host);
 573
 574         vpn_provider_ref(provider);
 575
 576         g_resolv_lookup_hostname(provider->resolv, provider->host,
 577                                 resolv_result, provider);
 578 }
 579
 580 void __vpn_provider_append_properties(struct vpn_provider *provider,
 581                                                         DBusMessageIter *iter)
 582 {
 583         if (provider->host != NULL)
 584                 connman_dbus_dict_append_basic(iter, "Host",
 585                                         DBUS_TYPE_STRING, &provider->host);
 586
 587         if (provider->domain != NULL)
 588                 connman_dbus_dict_append_basic(iter, "Domain",
 589                                         DBUS_TYPE_STRING, &provider->domain);
 590
 591         if (provider->type != NULL)
 592                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
 593                                                  &provider->type);
 594 }
 595
 596 int __vpn_provider_append_user_route(struct vpn_provider *provider,
 597                                 int family, const char *network,
 598                                 const char *netmask, const char *gateway)
 599 {
 600         struct vpn_route *route;
 601         char *key = g_strdup_printf("%d/%s/%s/%s", family, network,
 602                                 netmask, gateway != NULL ? gateway : "");
 603
 604         DBG("family %d network %s netmask %s gw %s", family, network,
 605                                                         netmask, gateway);
 606
 607         route = g_hash_table_lookup(provider->user_routes, key);
 608         if (route == NULL) {
 609                 route = g_try_new0(struct vpn_route, 1);
 610                 if (route == NULL) {
 611                         connman_error("out of memory");
 612                         return -ENOMEM;
 613                 }
 614
 615                 route->family = family;
 616                 route->network = g_strdup(network);
 617                 route->netmask = g_strdup(netmask);
 618                 route->gateway = g_strdup(gateway);
 619
 620                 g_hash_table_replace(provider->user_routes, key, route);
 621         } else
 622                 g_free(key);
 623
 624         return 0;
 625 }
 626
 627 static struct vpn_route *get_route(char *route_str)
 628 {
 629         char **elems = g_strsplit(route_str, "/", 0);
 630         char *network, *netmask, *gateway, *family_str;
 631         int family = PF_UNSPEC;
 632         struct vpn_route *route = NULL;
 633
 634         if (elems == NULL)
 635                 return NULL;
 636
 637         family_str = elems[0];
 638
 639         network = elems[1];
 640         if (network == NULL || network[0] == '\0')
 641                 goto out;
 642
 643         netmask = elems[2];
 644         if (netmask == NULL || netmask[0] == '\0')
 645                 goto out;
 646
 647         gateway = elems[3];
 648
 649         route = g_try_new0(struct vpn_route, 1);
 650         if (route == NULL)
 651                 goto out;
 652
 653         if (family_str[0] == '\0' || atoi(family_str) == 0) {
 654                 family = PF_UNSPEC;
 655         } else {
 656                 switch (family_str[0]) {
 657                 case '4':
 658                         family = AF_INET;
 659                         break;
 660                 case '6':
 661                         family = AF_INET6;
 662                         break;
 663                 }
 664         }
 665
 666         if (g_strrstr(network, ":") != NULL) {
 667                 if (family != PF_UNSPEC && family != AF_INET6)
 668                         DBG("You have IPv6 address but you have non IPv6 route");
 669         } else if (g_strrstr(network, ".") != NULL) {
 670                 if (family != PF_UNSPEC && family != AF_INET)
 671                         DBG("You have IPv4 address but you have non IPv4 route");
 672
 673                 if (g_strrstr(netmask, ".") == NULL) {
 674                         /* We have netmask length */
 675                         in_addr_t addr;
 676                         struct in_addr netmask_in;
 677                         unsigned char prefix_len = 32;
 678
 679                         if (netmask != NULL) {
 680                                 char *ptr;
 681                                 long int value = strtol(netmask, &ptr, 10);
 682                                 if (ptr != netmask && *ptr == '\0' &&
 683                                                                 value <= 32)
 684                                         prefix_len = value;
 685                         }
 686
 687                         addr = 0xffffffff << (32 - prefix_len);
 688                         netmask_in.s_addr = htonl(addr);
 689                         netmask = inet_ntoa(netmask_in);
 690
 691                         DBG("network %s netmask %s", network, netmask);
 692                 }
 693         }
 694
 695         if (family == PF_UNSPEC) {
 696                 family = connman_inet_check_ipaddress(network);
 697                 if (family < 0 || family == PF_UNSPEC)
 698                         goto out;
 699         }
 700
 701         route->family = family;
 702         route->network = g_strdup(network);
 703         route->netmask = g_strdup(netmask);
 704         route->gateway = g_strdup(gateway);
 705
 706 out:
 707         g_strfreev(elems);
 708         return route;
 709 }
 710
 711 static GSList *get_routes(gchar **networks)
 712 {
 713         struct vpn_route *route;
 714         GSList *routes = NULL;
 715         int i;
 716
 717         for (i = 0; networks[i] != NULL; i++) {
 718                 route = get_route(networks[i]);
 719                 if (route != NULL)
 720                         routes = g_slist_prepend(routes, route);
 721         }
 722
 723         return routes;
 724 }
 725
 726 static int provider_load_from_keyfile(struct vpn_provider *provider,
 727                 GKeyFile *keyfile)
 728 {
 729         gsize idx = 0;
 730         gchar **settings;
 731         gchar *key, *value;
 732         gsize length, num_user_networks;
 733         gchar **networks = NULL;
 734
 735         settings = g_key_file_get_keys(keyfile, provider->identifier, &length,
 736                                 NULL);
 737         if (settings == NULL) {
 738                 g_key_file_free(keyfile);
 739                 return -ENOENT;
 740         }
 741
 742         while (idx < length) {
 743                 key = settings[idx];
 744                 if (key != NULL) {
 745                         if (g_str_equal(key, "Networks") == TRUE) {
 746                                 networks = g_key_file_get_string_list(keyfile,
 747                                                 provider->identifier,
 748                                                 key,
 749                                                 &num_user_networks,
 750                                                 NULL);
 751                                 provider->user_networks = get_routes(networks);
 752
 753                         } else {
 754                                 value = g_key_file_get_string(keyfile,
 755                                                         provider->identifier,
 756                                                         key, NULL);
 757                                 vpn_provider_set_string(provider, key,
 758                                                         value);
 759                                 g_free(value);
 760                         }
 761                 }
 762                 idx += 1;
 763         }
 764         g_strfreev(settings);
 765         g_strfreev(networks);
 766
 767         if (provider->user_networks != NULL)
 768                 set_user_networks(provider, provider->user_networks);
 769
 770         return 0;
 771 }
 772
 773
 774 static int vpn_provider_load(struct vpn_provider *provider)
 775 {
 776         GKeyFile *keyfile;
 777
 778         DBG("provider %p", provider);
 779
 780         keyfile = __connman_storage_load_provider(provider->identifier);
 781         if (keyfile == NULL)
 782                 return -ENOENT;
 783
 784         provider_load_from_keyfile(provider, keyfile);
 785
 786         g_key_file_free(keyfile);
 787         return 0;
 788 }
 789
 790 static gchar **create_network_list(GSList *networks, gsize *count)
 791 {
 792         GSList *list;
 793         gchar **result = NULL;
 794         unsigned int num_elems = 0;
 795
 796         for (list = networks; list != NULL; list = g_slist_next(list)) {
 797                 struct vpn_route *route = list->data;
 798                 int family;
 799
 800                 result = g_try_realloc(result,
 801                                 (num_elems + 1) * sizeof(gchar *));
 802                 if (result == NULL)
 803                         return NULL;
 804
 805                 switch (route->family) {
 806                 case AF_INET:
 807                         family = 4;
 808                         break;
 809                 case AF_INET6:
 810                         family = 6;
 811                         break;
 812                 default:
 813                         family = 0;
 814                         break;
 815                 }
 816
 817                 result[num_elems] = g_strdup_printf("%d/%s/%s/%s",
 818                                 family, route->network, route->netmask,
 819                                 route->gateway == NULL ? "" : route->gateway);
 820
 821                 num_elems++;
 822         }
 823
 824         result = g_try_realloc(result, (num_elems + 1) * sizeof(gchar *));
 825         if (result == NULL)
 826                 return NULL;
 827
 828         result[num_elems] = NULL;
 829         *count = num_elems;
 830         return result;
 831 }
 832
 833 static int vpn_provider_save(struct vpn_provider *provider)
 834 {
 835         GKeyFile *keyfile;
 836
 837         DBG("provider %p", provider);
 838
 839         keyfile = g_key_file_new();
 840         if (keyfile == NULL)
 841                 return -ENOMEM;
 842
 843         g_key_file_set_string(keyfile, provider->identifier,
 844                         "Name", provider->name);
 845         g_key_file_set_string(keyfile, provider->identifier,
 846                         "Type", provider->type);
 847         g_key_file_set_string(keyfile, provider->identifier,
 848                         "Host", provider->host);
 849         g_key_file_set_string(keyfile, provider->identifier,
 850                         "VPN.Domain", provider->domain);
 851         if (provider->user_networks != NULL) {
 852                 gchar **networks;
 853                 gsize network_count;
 854
 855                 networks = create_network_list(provider->user_networks,
 856                                                         &network_count);
 857                 if (networks != NULL) {
 858                         g_key_file_set_string_list(keyfile,
 859                                                 provider->identifier,
 860                                                 "Networks",
 861                                                 (const gchar ** const)networks,
 862                                                 network_count);
 863                         g_strfreev(networks);
 864                 }
 865         }
 866
 867         if (provider->config_file != NULL && strlen(provider->config_file) > 0)
 868                 g_key_file_set_string(keyfile, provider->identifier,
 869                                 "Config.file", provider->config_file);
 870
 871         if (provider->config_entry != NULL &&
 872                                         strlen(provider->config_entry) > 0)
 873                 g_key_file_set_string(keyfile, provider->identifier,
 874                                 "Config.ident", provider->config_entry);
 875
 876         if (provider->driver != NULL && provider->driver->save != NULL)
 877                 provider->driver->save(provider, keyfile);
 878
 879         __connman_storage_save_provider(keyfile, provider->identifier);
 880         g_key_file_free(keyfile);
 881
 882         return 0;
 883 }
 884
 885 struct vpn_provider *__vpn_provider_lookup(const char *identifier)
 886 {
 887         struct vpn_provider *provider = NULL;
 888
 889         provider = g_hash_table_lookup(provider_hash, identifier);
 890
 891         return provider;
 892 }
 893
 894 static gboolean match_driver(struct vpn_provider *provider,
 895                                 struct vpn_provider_driver *driver)
 896 {
 897         if (g_strcmp0(driver->name, provider->type) == 0)
 898                 return TRUE;
 899
 900         return FALSE;
 901 }
 902
 903 static int provider_probe(struct vpn_provider *provider)
 904 {
 905         GSList *list;
 906
 907         DBG("provider %p driver %p name %s", provider, provider->driver,
 908                                                 provider->name);
 909
 910         if (provider->driver != NULL)
 911                 return -EALREADY;
 912
 913         for (list = driver_list; list; list = list->next) {
 914                 struct vpn_provider_driver *driver = list->data;
 915
 916                 if (match_driver(provider, driver) == FALSE)
 917                         continue;
 918
 919                 DBG("driver %p name %s", driver, driver->name);
 920
 921                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 922                         provider->driver = driver;
 923                         break;
 924                 }
 925         }
 926
 927         if (provider->driver == NULL)
 928                 return -ENODEV;
 929
 930         return 0;
 931 }
 932
 933 static void provider_remove(struct vpn_provider *provider)
 934 {
 935         if (provider->driver != NULL) {
 936                 provider->driver->remove(provider);
 937                 provider->driver = NULL;
 938         }
 939 }
 940
 941 static int provider_register(struct vpn_provider *provider)
 942 {
 943         return provider_probe(provider);
 944 }
 945
 946 static void provider_unregister(struct vpn_provider *provider)
 947 {
 948         provider_remove(provider);
 949 }
 950
 951 struct vpn_provider *
 952 vpn_provider_ref_debug(struct vpn_provider *provider,
 953                         const char *file, int line, const char *caller)
 954 {
 955         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
 956                 file, line, caller);
 957
 958         __sync_fetch_and_add(&provider->refcount, 1);
 959
 960         return provider;
 961 }
 962
 963 static void provider_destruct(struct vpn_provider *provider)
 964 {
 965         DBG("provider %p", provider);
 966
 967         if (provider->notify_id != 0)
 968                 g_source_remove(provider->notify_id);
 969
 970         g_free(provider->name);
 971         g_free(provider->type);
 972         g_free(provider->host);
 973         g_free(provider->domain);
 974         g_free(provider->identifier);
 975         g_free(provider->path);
 976         g_slist_free_full(provider->user_networks, free_route);
 977         g_strfreev(provider->nameservers);
 978         g_hash_table_destroy(provider->routes);
 979         g_hash_table_destroy(provider->user_routes);
 980         g_hash_table_destroy(provider->setting_strings);
 981         if (provider->resolv != NULL) {
 982                 g_resolv_unref(provider->resolv);
 983                 provider->resolv = NULL;
 984         }
 985         __vpn_ipconfig_unref(provider->ipconfig_ipv4);
 986         __vpn_ipconfig_unref(provider->ipconfig_ipv6);
 987
 988         g_strfreev(provider->host_ip);
 989         g_free(provider->config_file);
 990         g_free(provider->config_entry);
 991         g_free(provider);
 992 }
 993
 994 void vpn_provider_unref_debug(struct vpn_provider *provider,
 995                                 const char *file, int line, const char *caller)
 996 {
 997         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
 998                 file, line, caller);
 999
1000         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
1001                 return;
1002
1003         provider_remove(provider);
1004
1005         provider_destruct(provider);
1006 }
1007
1008 static void configuration_count_add(void)
1009 {
1010         DBG("count %d", configuration_count + 1);
1011
1012         __sync_fetch_and_add(&configuration_count, 1);
1013 }
1014
1015 static void configuration_count_del(void)
1016 {
1017         DBG("count %d", configuration_count - 1);
1018
1019         if (__sync_fetch_and_sub(&configuration_count, 1) != 1)
1020                 return;
1021 }
1022
1023 int __vpn_provider_disconnect(struct vpn_provider *provider)
1024 {
1025         int err;
1026
1027         DBG("provider %p", provider);
1028
1029         if (provider->driver != NULL && provider->driver->disconnect != NULL)
1030                 err = provider->driver->disconnect(provider);
1031         else
1032                 return -EOPNOTSUPP;
1033
1034         if (err == -EINPROGRESS)
1035                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1036
1037         return err;
1038 }
1039
1040 static void connect_cb(struct vpn_provider *provider, void *user_data,
1041                                                                 int error)
1042 {
1043         DBusMessage *pending = user_data;
1044
1045         DBG("provider %p user %p error %d", provider, user_data, error);
1046
1047         if (error != 0) {
1048                 DBusMessage *reply = __connman_error_failed(pending, error);
1049                 if (reply != NULL)
1050                         g_dbus_send_message(connection, reply);
1051
1052                 vpn_provider_indicate_error(provider,
1053                                         VPN_PROVIDER_ERROR_CONNECT_FAILED);
1054                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1055         } else
1056                 g_dbus_send_reply(connection, pending, DBUS_TYPE_INVALID);
1057
1058         dbus_message_unref(pending);
1059 }
1060
1061 int __vpn_provider_connect(struct vpn_provider *provider, DBusMessage *msg)
1062 {
1063         int err;
1064
1065         DBG("provider %p", provider);
1066
1067         if (provider->driver != NULL && provider->driver->connect != NULL) {
1068                 dbus_message_ref(msg);
1069                 err = provider->driver->connect(provider, connect_cb, msg);
1070         } else
1071                 return -EOPNOTSUPP;
1072
1073         if (err == -EINPROGRESS)
1074                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1075
1076         return err;
1077 }
1078
1079 static void connection_removed_signal(struct vpn_provider *provider)
1080 {
1081         DBusMessage *signal;
1082         DBusMessageIter iter;
1083
1084         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1085                         VPN_MANAGER_INTERFACE, "ConnectionRemoved");
1086         if (signal == NULL)
1087                 return;
1088
1089         dbus_message_iter_init_append(signal, &iter);
1090         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1091                                                         &provider->path);
1092         dbus_connection_send(connection, signal, NULL);
1093         dbus_message_unref(signal);
1094 }
1095
1096 static char *get_ident(const char *path)
1097 {
1098         char *pos;
1099
1100         if (*path != '/')
1101                 return NULL;
1102
1103         pos = strrchr(path, '/');
1104         if (pos == NULL)
1105                 return NULL;
1106
1107         return pos + 1;
1108 }
1109
1110 int __vpn_provider_remove(const char *path)
1111 {
1112         struct vpn_provider *provider;
1113         char *ident;
1114
1115         DBG("path %s", path);
1116
1117         ident = get_ident(path);
1118
1119         provider = __vpn_provider_lookup(ident);
1120         if (provider != NULL)
1121                 return __vpn_provider_delete(provider);
1122
1123         return -ENXIO;
1124 }
1125
1126 int __vpn_provider_delete(struct vpn_provider *provider)
1127 {
1128         DBG("Deleting VPN %s", provider->identifier);
1129
1130         connection_removed_signal(provider);
1131
1132         provider_unregister(provider);
1133
1134         __connman_storage_remove_provider(provider->identifier);
1135
1136         g_hash_table_remove(provider_hash, provider->identifier);
1137
1138         return 0;
1139 }
1140
1141 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1142 {
1143         struct vpn_provider *provider = user_data;
1144         const char *address, *gateway, *peer;
1145
1146         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1147         if (address != NULL) {
1148                 in_addr_t addr;
1149                 struct in_addr netmask;
1150                 char *mask;
1151                 int prefixlen;
1152
1153                 prefixlen = __vpn_ipconfig_get_prefixlen(
1154                                                 provider->ipconfig_ipv4);
1155
1156                 addr = 0xffffffff << (32 - prefixlen);
1157                 netmask.s_addr = htonl(addr);
1158                 mask = inet_ntoa(netmask);
1159
1160                 connman_dbus_dict_append_basic(iter, "Address",
1161                                                 DBUS_TYPE_STRING, &address);
1162
1163                 connman_dbus_dict_append_basic(iter, "Netmask",
1164                                                 DBUS_TYPE_STRING, &mask);
1165         }
1166
1167         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1168         if (gateway != NULL)
1169                 connman_dbus_dict_append_basic(iter, "Gateway",
1170                                                 DBUS_TYPE_STRING, &gateway);
1171
1172         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1173         if (peer != NULL)
1174                 connman_dbus_dict_append_basic(iter, "Peer",
1175                                                 DBUS_TYPE_STRING, &peer);
1176 }
1177
1178 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1179 {
1180         struct vpn_provider *provider = user_data;
1181         const char *address, *gateway, *peer;
1182
1183         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1184         if (address != NULL) {
1185                 unsigned char prefixlen;
1186
1187                 connman_dbus_dict_append_basic(iter, "Address",
1188                                                 DBUS_TYPE_STRING, &address);
1189
1190                 prefixlen = __vpn_ipconfig_get_prefixlen(
1191                                                 provider->ipconfig_ipv6);
1192
1193                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1194                                                 DBUS_TYPE_BYTE, &prefixlen);
1195         }
1196
1197         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1198         if (gateway != NULL)
1199                 connman_dbus_dict_append_basic(iter, "Gateway",
1200                                                 DBUS_TYPE_STRING, &gateway);
1201
1202         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1203         if (peer != NULL)
1204                 connman_dbus_dict_append_basic(iter, "Peer",
1205                                                 DBUS_TYPE_STRING, &peer);
1206 }
1207
1208 static const char *state2string(enum vpn_provider_state state)
1209 {
1210         switch (state) {
1211         case VPN_PROVIDER_STATE_UNKNOWN:
1212                 break;
1213         case VPN_PROVIDER_STATE_IDLE:
1214                 return "idle";
1215         case VPN_PROVIDER_STATE_CONNECT:
1216                 return "configuration";
1217         case VPN_PROVIDER_STATE_READY:
1218                 return "ready";
1219         case VPN_PROVIDER_STATE_DISCONNECT:
1220                 return "disconnect";
1221         case VPN_PROVIDER_STATE_FAILURE:
1222                 return "failure";
1223         }
1224
1225         return NULL;
1226 }
1227
1228 static int provider_indicate_state(struct vpn_provider *provider,
1229                                 enum vpn_provider_state state)
1230 {
1231         const char *str;
1232         enum vpn_provider_state old_state;
1233
1234         str = state2string(state);
1235         DBG("provider %p state %s/%d", provider, str, state);
1236         if (str == NULL)
1237                 return -EINVAL;
1238
1239         old_state = provider->state;
1240         provider->state = state;
1241
1242         if (state == VPN_PROVIDER_STATE_READY) {
1243                 connman_dbus_property_changed_basic(provider->path,
1244                                         VPN_CONNECTION_INTERFACE, "Index",
1245                                         DBUS_TYPE_INT32, &provider->index);
1246
1247                 if (provider->family == AF_INET)
1248                         connman_dbus_property_changed_dict(provider->path,
1249                                         VPN_CONNECTION_INTERFACE, "IPv4",
1250                                         append_ipv4, provider);
1251                 else if (provider->family == AF_INET6)
1252                         connman_dbus_property_changed_dict(provider->path,
1253                                         VPN_CONNECTION_INTERFACE, "IPv6",
1254                                         append_ipv6, provider);
1255         }
1256
1257         if (old_state != state)
1258                 connman_dbus_property_changed_basic(provider->path,
1259                                         VPN_CONNECTION_INTERFACE, "State",
1260                                         DBUS_TYPE_STRING, &str);
1261
1262         /*
1263          * We do not stay in failure state as clients like connmand can
1264          * get confused about our current state.
1265          */
1266         if (provider->state == VPN_PROVIDER_STATE_FAILURE)
1267                 provider->state = VPN_PROVIDER_STATE_IDLE;
1268
1269         return 0;
1270 }
1271
1272 static void append_nameservers(DBusMessageIter *iter, char **servers)
1273 {
1274         int i;
1275
1276         DBG("%p", servers);
1277
1278         for (i = 0; servers[i] != NULL; i++) {
1279                 DBG("servers[%d] %s", i, servers[i]);
1280                 dbus_message_iter_append_basic(iter,
1281                                         DBUS_TYPE_STRING, &servers[i]);
1282         }
1283 }
1284
1285 static void append_dns(DBusMessageIter *iter, void *user_data)
1286 {
1287         struct vpn_provider *provider = user_data;
1288
1289         if (provider->nameservers != NULL)
1290                 append_nameservers(iter, provider->nameservers);
1291 }
1292
1293 static void append_state(DBusMessageIter *iter,
1294                                         struct vpn_provider *provider)
1295 {
1296         char *str;
1297
1298         switch (provider->state) {
1299         case VPN_PROVIDER_STATE_UNKNOWN:
1300         case VPN_PROVIDER_STATE_IDLE:
1301                 str = "idle";
1302                 break;
1303         case VPN_PROVIDER_STATE_CONNECT:
1304                 str = "configuration";
1305                 break;
1306         case VPN_PROVIDER_STATE_READY:
1307                 str = "ready";
1308                 break;
1309         case VPN_PROVIDER_STATE_DISCONNECT:
1310                 str = "disconnect";
1311                 break;
1312         case VPN_PROVIDER_STATE_FAILURE:
1313                 str = "failure";
1314                 break;
1315         }
1316
1317         connman_dbus_dict_append_basic(iter, "State",
1318                                 DBUS_TYPE_STRING, &str);
1319 }
1320
1321 static void append_properties(DBusMessageIter *iter,
1322                                         struct vpn_provider *provider)
1323 {
1324         DBusMessageIter dict;
1325         GHashTableIter hash;
1326         gpointer value, key;
1327
1328         connman_dbus_dict_open(iter, &dict);
1329
1330         append_state(&dict, provider);
1331
1332         if (provider->type != NULL)
1333                 connman_dbus_dict_append_basic(&dict, "Type",
1334                                         DBUS_TYPE_STRING, &provider->type);
1335
1336         if (provider->name != NULL)
1337                 connman_dbus_dict_append_basic(&dict, "Name",
1338                                         DBUS_TYPE_STRING, &provider->name);
1339
1340         if (provider->host != NULL)
1341                 connman_dbus_dict_append_basic(&dict, "Host",
1342                                         DBUS_TYPE_STRING, &provider->host);
1343         if (provider->index >= 0)
1344                 connman_dbus_dict_append_basic(&dict, "Index",
1345                                         DBUS_TYPE_INT32, &provider->index);
1346         if (provider->domain != NULL)
1347                 connman_dbus_dict_append_basic(&dict, "Domain",
1348                                         DBUS_TYPE_STRING, &provider->domain);
1349
1350         connman_dbus_dict_append_basic(&dict, "Immutable", DBUS_TYPE_BOOLEAN,
1351                                         &provider->immutable);
1352
1353         if (provider->family == AF_INET)
1354                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1355                                                 provider);
1356         else if (provider->family == AF_INET6)
1357                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1358                                                 provider);
1359
1360         connman_dbus_dict_append_array(&dict, "Nameservers",
1361                                 DBUS_TYPE_STRING, append_dns, provider);
1362
1363         connman_dbus_dict_append_array(&dict, "UserRoutes",
1364                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1365                                 provider->user_routes);
1366
1367         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1368                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1369                                 provider->routes);
1370
1371         if (provider->setting_strings != NULL) {
1372                 g_hash_table_iter_init(&hash, provider->setting_strings);
1373
1374                 while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1375                         struct vpn_setting *setting = value;
1376
1377                         if (setting->hide_value == FALSE &&
1378                                                         setting->value != NULL)
1379                                 connman_dbus_dict_append_basic(&dict, key,
1380                                                         DBUS_TYPE_STRING,
1381                                                         &setting->value);
1382                 }
1383         }
1384
1385         connman_dbus_dict_close(iter, &dict);
1386 }
1387
1388 static void connection_added_signal(struct vpn_provider *provider)
1389 {
1390         DBusMessage *signal;
1391         DBusMessageIter iter;
1392
1393         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1394                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1395         if (signal == NULL)
1396                 return;
1397
1398         dbus_message_iter_init_append(signal, &iter);
1399         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1400                                                         &provider->path);
1401         append_properties(&iter, provider);
1402
1403         dbus_connection_send(connection, signal, NULL);
1404         dbus_message_unref(signal);
1405 }
1406
1407 static connman_bool_t check_host(char **hosts, char *host)
1408 {
1409         int i;
1410
1411         if (hosts == NULL)
1412                 return FALSE;
1413
1414         for (i = 0; hosts[i] != NULL; i++) {
1415                 if (g_strcmp0(hosts[i], host) == 0)
1416                         return TRUE;
1417         }
1418
1419         return FALSE;
1420 }
1421
1422 static void provider_append_routes(gpointer key, gpointer value,
1423                                         gpointer user_data)
1424 {
1425         struct vpn_route *route = value;
1426         struct vpn_provider *provider = user_data;
1427         int index = provider->index;
1428
1429         if (handle_routes == FALSE)
1430                 return;
1431
1432         /*
1433          * If the VPN administrator/user has given a route to
1434          * VPN server, then we must discard that because the
1435          * server cannot be contacted via VPN tunnel.
1436          */
1437         if (check_host(provider->host_ip, route->network) == TRUE) {
1438                 DBG("Discarding VPN route to %s via %s at index %d",
1439                         route->network, route->gateway, index);
1440                 return;
1441         }
1442
1443         if (route->family == AF_INET6) {
1444                 unsigned char prefix_len = atoi(route->netmask);
1445
1446                 connman_inet_add_ipv6_network_route(index, route->network,
1447                                                         route->gateway,
1448                                                         prefix_len);
1449         } else {
1450                 connman_inet_add_network_route(index, route->network,
1451                                                 route->gateway,
1452                                                 route->netmask);
1453         }
1454 }
1455
1456 static int set_connected(struct vpn_provider *provider,
1457                                         connman_bool_t connected)
1458 {
1459         struct vpn_ipconfig *ipconfig;
1460
1461         DBG("provider %p id %s connected %d", provider,
1462                                         provider->identifier, connected);
1463
1464         if (connected == TRUE) {
1465                 if (provider->family == AF_INET6)
1466                         ipconfig = provider->ipconfig_ipv6;
1467                 else
1468                         ipconfig = provider->ipconfig_ipv4;
1469
1470                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1471
1472                 if (handle_routes == TRUE)
1473                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1474
1475                 provider_indicate_state(provider,
1476                                         VPN_PROVIDER_STATE_READY);
1477
1478                 g_hash_table_foreach(provider->routes, provider_append_routes,
1479                                         provider);
1480
1481                 g_hash_table_foreach(provider->user_routes,
1482                                         provider_append_routes, provider);
1483
1484         } else {
1485                 provider_indicate_state(provider,
1486                                         VPN_PROVIDER_STATE_DISCONNECT);
1487
1488                 provider_indicate_state(provider,
1489                                         VPN_PROVIDER_STATE_IDLE);
1490         }
1491
1492         return 0;
1493 }
1494
1495 int vpn_provider_set_state(struct vpn_provider *provider,
1496                                         enum vpn_provider_state state)
1497 {
1498         if (provider == NULL)
1499                 return -EINVAL;
1500
1501         switch (state) {
1502         case VPN_PROVIDER_STATE_UNKNOWN:
1503                 return -EINVAL;
1504         case VPN_PROVIDER_STATE_IDLE:
1505                 return set_connected(provider, FALSE);
1506         case VPN_PROVIDER_STATE_CONNECT:
1507                 return provider_indicate_state(provider, state);
1508         case VPN_PROVIDER_STATE_READY:
1509                 return set_connected(provider, TRUE);
1510         case VPN_PROVIDER_STATE_DISCONNECT:
1511                 return provider_indicate_state(provider, state);
1512         case VPN_PROVIDER_STATE_FAILURE:
1513                 return provider_indicate_state(provider, state);
1514         }
1515         return -EINVAL;
1516 }
1517
1518 int vpn_provider_indicate_error(struct vpn_provider *provider,
1519                                         enum vpn_provider_error error)
1520 {
1521         DBG("provider %p id %s error %d", provider, provider->identifier,
1522                                                                         error);
1523
1524         switch (error) {
1525         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1526                 break;
1527         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1528                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1529                 break;
1530         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1531                 break;
1532         default:
1533                 break;
1534         }
1535
1536         return 0;
1537 }
1538
1539 static int connection_unregister(struct vpn_provider *provider)
1540 {
1541         DBG("provider %p path %s", provider, provider->path);
1542
1543         if (provider->path == NULL)
1544                 return -EALREADY;
1545
1546         g_dbus_unregister_interface(connection, provider->path,
1547                                 VPN_CONNECTION_INTERFACE);
1548
1549         g_free(provider->path);
1550         provider->path = NULL;
1551
1552         return 0;
1553 }
1554
1555 static int connection_register(struct vpn_provider *provider)
1556 {
1557         DBG("provider %p path %s", provider, provider->path);
1558
1559         if (provider->path != NULL)
1560                 return -EALREADY;
1561
1562         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1563                                                 provider->identifier);
1564
1565         g_dbus_register_interface(connection, provider->path,
1566                                 VPN_CONNECTION_INTERFACE,
1567                                 connection_methods, connection_signals,
1568                                 NULL, provider, NULL);
1569
1570         return 0;
1571 }
1572
1573 static void unregister_provider(gpointer data)
1574 {
1575         struct vpn_provider *provider = data;
1576
1577         configuration_count_del();
1578
1579         connection_unregister(provider);
1580
1581         vpn_provider_unref(provider);
1582 }
1583
1584 static void provider_initialize(struct vpn_provider *provider)
1585 {
1586         DBG("provider %p", provider);
1587
1588         provider->index = 0;
1589         provider->fd = -1;
1590         provider->name = NULL;
1591         provider->type = NULL;
1592         provider->domain = NULL;
1593         provider->identifier = NULL;
1594         provider->immutable = FALSE;
1595         provider->user_networks = NULL;
1596         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1597                                         NULL, free_route);
1598         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1599                                         g_free, free_route);
1600         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1601                                         g_str_equal, g_free, free_setting);
1602 }
1603
1604 static struct vpn_provider *vpn_provider_new(void)
1605 {
1606         struct vpn_provider *provider;
1607
1608         provider = g_try_new0(struct vpn_provider, 1);
1609         if (provider == NULL)
1610                 return NULL;
1611
1612         provider->refcount = 1;
1613
1614         DBG("provider %p", provider);
1615         provider_initialize(provider);
1616
1617         return provider;
1618 }
1619
1620 static struct vpn_provider *vpn_provider_get(const char *identifier)
1621 {
1622         struct vpn_provider *provider;
1623
1624         provider = g_hash_table_lookup(provider_hash, identifier);
1625         if (provider != NULL)
1626                 return provider;
1627
1628         provider = vpn_provider_new();
1629         if (provider == NULL)
1630                 return NULL;
1631
1632         DBG("provider %p", provider);
1633
1634         provider->identifier = g_strdup(identifier);
1635
1636         g_hash_table_insert(provider_hash, provider->identifier, provider);
1637
1638         configuration_count_add();
1639
1640         return provider;
1641 }
1642
1643 static void provider_dbus_ident(char *ident)
1644 {
1645         int i, len = strlen(ident);
1646
1647         for (i = 0; i < len; i++) {
1648                 if (ident[i] >= '0' && ident[i] <= '9')
1649                         continue;
1650                 if (ident[i] >= 'a' && ident[i] <= 'z')
1651                         continue;
1652                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1653                         continue;
1654                 ident[i] = '_';
1655         }
1656 }
1657
1658 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1659                 const char *ident)
1660 {
1661         struct vpn_provider *provider;
1662
1663         if (keyfile == NULL || ident == NULL)
1664                 return NULL;
1665
1666         provider = __vpn_provider_lookup(ident);
1667         if (provider == NULL) {
1668                 provider = vpn_provider_get(ident);
1669                 if (provider == NULL) {
1670                         DBG("can not create provider");
1671                         return NULL;
1672                 }
1673
1674                 provider_load_from_keyfile(provider, keyfile);
1675
1676                 if (provider->name == NULL || provider->host == NULL ||
1677                                 provider->domain == NULL) {
1678                         DBG("cannot get name, host or domain");
1679                         vpn_provider_unref(provider);
1680                         return NULL;
1681                 }
1682
1683                 if (provider_register(provider) == 0)
1684                         connection_register(provider);
1685         }
1686         return provider;
1687 }
1688
1689 static void provider_create_all_from_type(const char *provider_type)
1690 {
1691         unsigned int i;
1692         char **providers;
1693         char *id, *type;
1694         GKeyFile *keyfile;
1695
1696         DBG("provider type %s", provider_type);
1697
1698         providers = __connman_storage_get_providers();
1699
1700         if (providers == NULL)
1701                 return;
1702
1703         for (i = 0; providers[i] != NULL; i+=1) {
1704
1705                 if (strncmp(providers[i], "provider_", 9) != 0)
1706                         continue;
1707
1708                 id = providers[i] + 9;
1709                 keyfile = __connman_storage_load_provider(id);
1710
1711                 if (keyfile == NULL)
1712                         continue;
1713
1714                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1715
1716                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1717
1718                 if (strcmp(provider_type, type) != 0) {
1719                         g_free(type);
1720                         g_key_file_free(keyfile);
1721                         continue;
1722                 }
1723
1724                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1725                         DBG("could not create provider");
1726
1727                 g_free(type);
1728                 g_key_file_free(keyfile);
1729         }
1730         g_strfreev(providers);
1731 }
1732
1733 char *__vpn_provider_create_identifier(const char *host, const char *domain)
1734 {
1735         char *ident;
1736
1737         ident = g_strdup_printf("%s_%s", host, domain);
1738         if (ident == NULL)
1739                 return NULL;
1740
1741         provider_dbus_ident(ident);
1742
1743         return ident;
1744 }
1745
1746 int __vpn_provider_create(DBusMessage *msg)
1747 {
1748         struct vpn_provider *provider;
1749         DBusMessageIter iter, array;
1750         const char *type = NULL, *name = NULL;
1751         const char *host = NULL, *domain = NULL;
1752         GSList *networks = NULL;
1753         char *ident;
1754         int err;
1755
1756         dbus_message_iter_init(msg, &iter);
1757         dbus_message_iter_recurse(&iter, &array);
1758
1759         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1760                 DBusMessageIter entry, value;
1761                 const char *key;
1762
1763                 dbus_message_iter_recurse(&array, &entry);
1764                 dbus_message_iter_get_basic(&entry, &key);
1765
1766                 dbus_message_iter_next(&entry);
1767                 dbus_message_iter_recurse(&entry, &value);
1768
1769                 switch (dbus_message_iter_get_arg_type(&value)) {
1770                 case DBUS_TYPE_STRING:
1771                         if (g_str_equal(key, "Type") == TRUE)
1772                                 dbus_message_iter_get_basic(&value, &type);
1773                         else if (g_str_equal(key, "Name") == TRUE)
1774                                 dbus_message_iter_get_basic(&value, &name);
1775                         else if (g_str_equal(key, "Host") == TRUE)
1776                                 dbus_message_iter_get_basic(&value, &host);
1777                         else if (g_str_equal(key, "VPN.Domain") == TRUE ||
1778                                         g_str_equal(key, "Domain") == TRUE)
1779                                 dbus_message_iter_get_basic(&value, &domain);
1780                         break;
1781                 case DBUS_TYPE_ARRAY:
1782                         if (g_str_equal(key, "UserRoutes") == TRUE)
1783                                 networks = get_user_networks(&value);
1784                         break;
1785                 }
1786
1787                 dbus_message_iter_next(&array);
1788         }
1789
1790         if (host == NULL || domain == NULL)
1791                 return -EINVAL;
1792
1793         DBG("Type %s name %s networks %p", type, name, networks);
1794
1795         if (type == NULL || name == NULL)
1796                 return -EOPNOTSUPP;
1797
1798         ident = __vpn_provider_create_identifier(host, domain);
1799         DBG("ident %s", ident);
1800
1801         provider = __vpn_provider_lookup(ident);
1802         if (provider == NULL) {
1803                 provider = vpn_provider_get(ident);
1804                 if (provider == NULL) {
1805                         DBG("can not create provider");
1806                         g_free(ident);
1807                         return -EOPNOTSUPP;
1808                 }
1809
1810                 provider->host = g_strdup(host);
1811                 provider->domain = g_strdup(domain);
1812                 provider->name = g_strdup(name);
1813                 provider->type = g_strdup(type);
1814
1815                 if (provider_register(provider) == 0)
1816                         vpn_provider_load(provider);
1817
1818                 provider_resolv_host_addr(provider);
1819         }
1820
1821         if (networks != NULL) {
1822                 g_slist_free_full(provider->user_networks, free_route);
1823                 provider->user_networks = networks;
1824                 set_user_networks(provider, provider->user_networks);
1825         }
1826
1827         dbus_message_iter_init(msg, &iter);
1828         dbus_message_iter_recurse(&iter, &array);
1829
1830         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1831                 DBusMessageIter entry, value;
1832                 const char *key, *str;
1833
1834                 dbus_message_iter_recurse(&array, &entry);
1835                 dbus_message_iter_get_basic(&entry, &key);
1836
1837                 dbus_message_iter_next(&entry);
1838                 dbus_message_iter_recurse(&entry, &value);
1839
1840                 switch (dbus_message_iter_get_arg_type(&value)) {
1841                 case DBUS_TYPE_STRING:
1842                         dbus_message_iter_get_basic(&value, &str);
1843                         vpn_provider_set_string(provider, key, str);
1844                         break;
1845                 }
1846
1847                 dbus_message_iter_next(&array);
1848         }
1849
1850         g_free(ident);
1851
1852         vpn_provider_save(provider);
1853
1854         err = provider_register(provider);
1855         if (err != 0 && err != -EALREADY)
1856                 return err;
1857
1858         connection_register(provider);
1859
1860         DBG("provider %p index %d path %s", provider, provider->index,
1861                                                         provider->path);
1862
1863         g_dbus_send_reply(connection, msg,
1864                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1865                                 DBUS_TYPE_INVALID);
1866
1867         connection_added_signal(provider);
1868
1869         return 0;
1870 }
1871
1872 static const char *get_string(GHashTable *settings, const char *key)
1873 {
1874         DBG("settings %p key %s", settings, key);
1875
1876         return g_hash_table_lookup(settings, key);
1877 }
1878
1879 static GSList *parse_user_networks(const char *network_str)
1880 {
1881         GSList *networks = NULL;
1882         char **elems;
1883         int i = 0;
1884
1885         if (network_str == NULL)
1886                 return NULL;
1887
1888         elems = g_strsplit(network_str, ",", 0);
1889         if (elems == NULL)
1890                 return NULL;
1891
1892         while (elems[i] != NULL) {
1893                 struct vpn_route *vpn_route;
1894                 char *network, *netmask, *gateway;
1895                 int family;
1896                 char **route;
1897
1898                 route = g_strsplit(elems[i], "/", 0);
1899                 if (route == NULL)
1900                         goto next;
1901
1902                 network = route[0];
1903                 if (network == NULL || network[0] == '\0')
1904                         goto next;
1905
1906                 family = connman_inet_check_ipaddress(network);
1907                 if (family < 0) {
1908                         DBG("Cannot get address family of %s (%d/%s)", network,
1909                                 family, gai_strerror(family));
1910
1911                         goto next;
1912                 }
1913
1914                 switch (family) {
1915                 case AF_INET:
1916                         break;
1917                 case AF_INET6:
1918                         break;
1919                 default:
1920                         DBG("Unsupported address family %d", family);
1921                         goto next;
1922                 }
1923
1924                 netmask = route[1];
1925                 if (netmask == NULL || netmask[0] == '\0')
1926                         goto next;
1927
1928                 gateway = route[2];
1929
1930                 vpn_route = g_try_new0(struct vpn_route, 1);
1931                 if (vpn_route == NULL) {
1932                         g_strfreev(route);
1933                         break;
1934                 }
1935
1936                 vpn_route->family = family;
1937                 vpn_route->network = g_strdup(network);
1938                 vpn_route->netmask = g_strdup(netmask);
1939                 vpn_route->gateway = g_strdup(gateway);
1940
1941                 DBG("route %s/%s%s%s", network, netmask,
1942                         gateway ? " via " : "", gateway ? gateway : "");
1943
1944                 networks = g_slist_prepend(networks, vpn_route);
1945
1946         next:
1947                 g_strfreev(route);
1948                 i++;
1949         }
1950
1951         g_strfreev(elems);
1952
1953         return g_slist_reverse(networks);
1954 }
1955
1956 int __vpn_provider_create_from_config(GHashTable *settings,
1957                                 const char *config_ident,
1958                                 const char *config_entry)
1959 {
1960         struct vpn_provider *provider;
1961         const char *type, *name, *host, *domain, *networks_str;
1962         GSList *networks;
1963         char *ident = NULL;
1964         GHashTableIter hash;
1965         gpointer value, key;
1966         int err;
1967
1968         type = get_string(settings, "Type");
1969         name = get_string(settings, "Name");
1970         host = get_string(settings, "Host");
1971         domain = get_string(settings, "Domain");
1972         networks_str = get_string(settings, "Networks");
1973         networks = parse_user_networks(networks_str);
1974
1975         if (host == NULL || domain == NULL) {
1976                 err = -EINVAL;
1977                 goto fail;
1978         }
1979
1980         DBG("type %s name %s networks %s", type, name, networks_str);
1981
1982         if (type == NULL || name == NULL) {
1983                 err = -EOPNOTSUPP;
1984                 goto fail;
1985         }
1986
1987         ident = __vpn_provider_create_identifier(host, domain);
1988         DBG("ident %s", ident);
1989
1990         provider = __vpn_provider_lookup(ident);
1991         if (provider == NULL) {
1992                 provider = vpn_provider_get(ident);
1993                 if (provider == NULL) {
1994                         DBG("can not create provider");
1995                         err = -EOPNOTSUPP;
1996                         goto fail;
1997                 }
1998
1999                 provider->host = g_strdup(host);
2000                 provider->domain = g_strdup(domain);
2001                 provider->name = g_strdup(name);
2002                 provider->type = g_ascii_strdown(type, -1);
2003
2004                 provider->config_file = g_strdup(config_ident);
2005                 provider->config_entry = g_strdup(config_entry);
2006
2007                 if (provider_register(provider) == 0)
2008                         vpn_provider_load(provider);
2009
2010                 provider_resolv_host_addr(provider);
2011         }
2012
2013         if (networks != NULL) {
2014                 g_slist_free_full(provider->user_networks, free_route);
2015                 provider->user_networks = networks;
2016                 set_user_networks(provider, provider->user_networks);
2017         }
2018
2019         g_hash_table_iter_init(&hash, settings);
2020
2021         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE)
2022                 __vpn_provider_set_string_immutable(provider, key, value);
2023
2024         vpn_provider_save(provider);
2025
2026         err = provider_register(provider);
2027         if (err != 0 && err != -EALREADY)
2028                 goto fail;
2029
2030         connection_register(provider);
2031
2032         DBG("provider %p index %d path %s", provider, provider->index,
2033                                                         provider->path);
2034
2035         connection_added_signal(provider);
2036
2037         g_free(ident);
2038
2039         return 0;
2040
2041 fail:
2042         g_free(ident);
2043         g_slist_free_full(networks, free_route);
2044
2045         return err;
2046 }
2047
2048 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
2049 {
2050         DBusMessageIter entry;
2051         GHashTableIter hash;
2052         gpointer value, key;
2053
2054         g_hash_table_iter_init(&hash, provider_hash);
2055
2056         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
2057                 struct vpn_provider *provider = value;
2058
2059                 DBG("path %s", provider->path);
2060
2061                 if (provider->identifier == NULL)
2062                         continue;
2063
2064                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
2065                                 NULL, &entry);
2066                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
2067                                 &provider->path);
2068                 append_properties(&entry, provider);
2069                 dbus_message_iter_close_container(iter, &entry);
2070         }
2071 }
2072
2073 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
2074 {
2075         DBusMessage *reply;
2076
2077         DBG("");
2078
2079         reply = dbus_message_new_method_return(msg);
2080         if (reply == NULL)
2081                 return NULL;
2082
2083         __connman_dbus_append_objpath_dict_array(reply,
2084                         append_connection_structs, NULL);
2085
2086         return reply;
2087 }
2088
2089 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
2090 {
2091         if (provider == NULL)
2092                 return NULL;
2093
2094         return provider->identifier;
2095 }
2096
2097 static int set_string(struct vpn_provider *provider,
2098                         const char *key, const char *value,
2099                         gboolean hide_value, gboolean immutable)
2100 {
2101         DBG("provider %p key %s immutable %s value %s", provider, key,
2102                 immutable ? "yes" : "no",
2103                 hide_value ? "<not printed>" : value);
2104
2105         if (g_str_equal(key, "Type") == TRUE) {
2106                 g_free(provider->type);
2107                 provider->type = g_ascii_strdown(value, -1);
2108                 send_value(provider->path, "Type", provider->type);
2109         } else if (g_str_equal(key, "Name") == TRUE) {
2110                 g_free(provider->name);
2111                 provider->name = g_strdup(value);
2112                 send_value(provider->path, "Name", provider->name);
2113         } else if (g_str_equal(key, "Host") == TRUE) {
2114                 g_free(provider->host);
2115                 provider->host = g_strdup(value);
2116                 send_value(provider->path, "Host", provider->host);
2117         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2118                         g_str_equal(key, "Domain") == TRUE) {
2119                 g_free(provider->domain);
2120                 provider->domain = g_strdup(value);
2121                 send_value(provider->path, "Domain", provider->domain);
2122         } else {
2123                 struct vpn_setting *setting;
2124
2125                 setting = g_hash_table_lookup(provider->setting_strings, key);
2126                 if (setting != NULL && immutable == FALSE &&
2127                                                 setting->immutable == TRUE) {
2128                         DBG("Trying to set immutable variable %s", key);
2129                         return -EPERM;
2130                 }
2131
2132                 setting = g_try_new(struct vpn_setting, 1);
2133                 if (setting == NULL)
2134                         return -ENOMEM;
2135
2136                 setting->value = g_strdup(value);
2137                 setting->hide_value = hide_value;
2138
2139                 if (immutable == TRUE)
2140                         setting->immutable = TRUE;
2141
2142                 if (hide_value == FALSE)
2143                         send_value(provider->path, key, setting->value);
2144
2145                 g_hash_table_replace(provider->setting_strings,
2146                                 g_strdup(key), setting);
2147         }
2148
2149         return 0;
2150 }
2151
2152 int vpn_provider_set_string(struct vpn_provider *provider,
2153                                         const char *key, const char *value)
2154 {
2155         return set_string(provider, key, value, FALSE, FALSE);
2156 }
2157
2158 int vpn_provider_set_string_hide_value(struct vpn_provider *provider,
2159                                         const char *key, const char *value)
2160 {
2161         return set_string(provider, key, value, TRUE, FALSE);
2162 }
2163
2164 int __vpn_provider_set_string_immutable(struct vpn_provider *provider,
2165                                         const char *key, const char *value)
2166 {
2167         return set_string(provider, key, value, FALSE, TRUE);
2168 }
2169
2170 const char *vpn_provider_get_string(struct vpn_provider *provider,
2171                                                         const char *key)
2172 {
2173         struct vpn_setting *setting;
2174
2175         DBG("provider %p key %s", provider, key);
2176
2177         if (g_str_equal(key, "Type") == TRUE)
2178                 return provider->type;
2179         else if (g_str_equal(key, "Name") == TRUE)
2180                 return provider->name;
2181         else if (g_str_equal(key, "Host") == TRUE)
2182                 return provider->host;
2183         else if (g_str_equal(key, "HostIP") == TRUE) {
2184                 if (provider->host_ip == NULL ||
2185                                 provider->host_ip[0] == NULL)
2186                         return provider->host;
2187                 else
2188                         return provider->host_ip[0];
2189         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2190                         g_str_equal(key, "Domain") == TRUE)
2191                 return provider->domain;
2192
2193         setting = g_hash_table_lookup(provider->setting_strings, key);
2194         if (setting == NULL)
2195                 return NULL;
2196
2197         return setting->value;
2198 }
2199
2200 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
2201 {
2202         if (provider == NULL)
2203                 return FALSE;
2204
2205         if (provider->user_routes != NULL &&
2206                         g_hash_table_size(provider->user_routes) > 0)
2207                 return TRUE;
2208
2209         if (provider->routes != NULL &&
2210                         g_hash_table_size(provider->routes) > 0)
2211                 return TRUE;
2212
2213         return FALSE;
2214 }
2215
2216 void *vpn_provider_get_data(struct vpn_provider *provider)
2217 {
2218         return provider->driver_data;
2219 }
2220
2221 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
2222 {
2223         provider->driver_data = data;
2224 }
2225
2226 void vpn_provider_set_index(struct vpn_provider *provider, int index)
2227 {
2228         DBG("index %d provider %p", index, provider);
2229
2230         if (provider->ipconfig_ipv4 == NULL) {
2231                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
2232                                                                 AF_INET);
2233                 if (provider->ipconfig_ipv4 == NULL) {
2234                         DBG("Couldnt create ipconfig for IPv4");
2235                         goto done;
2236                 }
2237         }
2238
2239         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
2240
2241         if (provider->ipconfig_ipv6 == NULL) {
2242                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
2243                                                                 AF_INET6);
2244                 if (provider->ipconfig_ipv6 == NULL) {
2245                         DBG("Couldnt create ipconfig for IPv6");
2246                         goto done;
2247                 }
2248         }
2249
2250         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
2251
2252 done:
2253         provider->index = index;
2254 }
2255
2256 int vpn_provider_get_index(struct vpn_provider *provider)
2257 {
2258         return provider->index;
2259 }
2260
2261 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
2262                                         struct connman_ipaddress *ipaddress)
2263 {
2264         struct vpn_ipconfig *ipconfig = NULL;
2265
2266         switch (ipaddress->family) {
2267         case AF_INET:
2268                 ipconfig = provider->ipconfig_ipv4;
2269                 break;
2270         case AF_INET6:
2271                 ipconfig = provider->ipconfig_ipv6;
2272                 break;
2273         default:
2274                 break;
2275         }
2276
2277         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
2278                                                         ipaddress->family);
2279
2280         if (ipconfig == NULL)
2281                 return -EINVAL;
2282
2283         provider->family = ipaddress->family;
2284
2285         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
2286         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
2287         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
2288         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
2289         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
2290
2291         return 0;
2292 }
2293
2294 int vpn_provider_set_pac(struct vpn_provider *provider,
2295                                 const char *pac)
2296 {
2297         DBG("provider %p pac %s", provider, pac);
2298
2299         return 0;
2300 }
2301
2302
2303 int vpn_provider_set_domain(struct vpn_provider *provider,
2304                                         const char *domain)
2305 {
2306         DBG("provider %p domain %s", provider, domain);
2307
2308         g_free(provider->domain);
2309         provider->domain = g_strdup(domain);
2310
2311         return 0;
2312 }
2313
2314 int vpn_provider_set_nameservers(struct vpn_provider *provider,
2315                                         const char *nameservers)
2316 {
2317         DBG("provider %p nameservers %s", provider, nameservers);
2318
2319         g_strfreev(provider->nameservers);
2320         provider->nameservers = NULL;
2321
2322         if (nameservers == NULL)
2323                 return 0;
2324
2325         provider->nameservers = g_strsplit(nameservers, " ", 0);
2326
2327         return 0;
2328 }
2329
2330 enum provider_route_type {
2331         PROVIDER_ROUTE_TYPE_NONE = 0,
2332         PROVIDER_ROUTE_TYPE_MASK = 1,
2333         PROVIDER_ROUTE_TYPE_ADDR = 2,
2334         PROVIDER_ROUTE_TYPE_GW   = 3,
2335 };
2336
2337 static int route_env_parse(struct vpn_provider *provider, const char *key,
2338                                 int *family, unsigned long *idx,
2339                                 enum provider_route_type *type)
2340 {
2341         char *end;
2342         const char *start;
2343
2344         DBG("name %s", provider->name);
2345
2346         if (!strcmp(provider->type, "openvpn")) {
2347                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
2348                         start = key + strlen("route_network_");
2349                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2350                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2351                         start = key + strlen("route_netmask_");
2352                         *type = PROVIDER_ROUTE_TYPE_MASK;
2353                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2354                         start = key + strlen("route_gateway_");
2355                         *type = PROVIDER_ROUTE_TYPE_GW;
2356                 } else
2357                         return -EINVAL;
2358
2359                 *family = AF_INET;
2360                 *idx = g_ascii_strtoull(start, &end, 10);
2361
2362         } else if (!strcmp(provider->type, "openconnect")) {
2363                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2364                         *family = AF_INET;
2365                         start = key + strlen("CISCO_SPLIT_INC_");
2366                 } else if (g_str_has_prefix(key,
2367                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2368                         *family = AF_INET6;
2369                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2370                 } else
2371                         return -EINVAL;
2372
2373                 *idx = g_ascii_strtoull(start, &end, 10);
2374
2375                 if (strncmp(end, "_ADDR", 5) == 0)
2376                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2377                 else if (strncmp(end, "_MASK", 5) == 0)
2378                         *type = PROVIDER_ROUTE_TYPE_MASK;
2379                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2380                                 *family == AF_INET6) {
2381                         *type = PROVIDER_ROUTE_TYPE_MASK;
2382                 } else
2383                         return -EINVAL;
2384         }
2385
2386         return 0;
2387 }
2388
2389 int vpn_provider_append_route(struct vpn_provider *provider,
2390                                         const char *key, const char *value)
2391 {
2392         struct vpn_route *route;
2393         int ret, family = 0;
2394         unsigned long idx = 0;
2395         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2396
2397         DBG("key %s value %s", key, value);
2398
2399         ret = route_env_parse(provider, key, &family, &idx, &type);
2400         if (ret < 0)
2401                 return ret;
2402
2403         DBG("idx %lu family %d type %d", idx, family, type);
2404
2405         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2406         if (route == NULL) {
2407                 route = g_try_new0(struct vpn_route, 1);
2408                 if (route == NULL) {
2409                         connman_error("out of memory");
2410                         return -ENOMEM;
2411                 }
2412
2413                 route->family = family;
2414
2415                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2416                                                 route);
2417         }
2418
2419         switch (type) {
2420         case PROVIDER_ROUTE_TYPE_NONE:
2421                 break;
2422         case PROVIDER_ROUTE_TYPE_MASK:
2423                 route->netmask = g_strdup(value);
2424                 break;
2425         case PROVIDER_ROUTE_TYPE_ADDR:
2426                 route->network = g_strdup(value);
2427                 break;
2428         case PROVIDER_ROUTE_TYPE_GW:
2429                 route->gateway = g_strdup(value);
2430                 break;
2431         }
2432
2433         if (handle_routes == FALSE) {
2434                 if (route->netmask != NULL && route->gateway != NULL &&
2435                                                         route->network != NULL)
2436                         provider_schedule_changed(provider);
2437         }
2438
2439         return 0;
2440 }
2441
2442 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2443 {
2444         if (provider->driver == NULL)
2445                 return NULL;
2446
2447         return provider->driver->name;
2448 }
2449
2450 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2451 {
2452         return provider->identifier;
2453 }
2454
2455 static gint compare_priority(gconstpointer a, gconstpointer b)
2456 {
2457         return 0;
2458 }
2459
2460 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2461 {
2462         struct vpn_provider *provider = value;
2463
2464         if (provider->driver != NULL && provider->driver->remove)
2465                 provider->driver->remove(provider);
2466
2467         connection_unregister(provider);
2468 }
2469
2470 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2471 {
2472         DBG("driver %p name %s", driver, driver->name);
2473
2474         driver_list = g_slist_insert_sorted(driver_list, driver,
2475                                                         compare_priority);
2476         provider_create_all_from_type(driver->name);
2477         return 0;
2478 }
2479
2480 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2481 {
2482         GHashTableIter iter;
2483         gpointer value, key;
2484
2485         DBG("driver %p name %s", driver, driver->name);
2486
2487         driver_list = g_slist_remove(driver_list, driver);
2488
2489         g_hash_table_iter_init(&iter, provider_hash);
2490         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2491                 struct vpn_provider *provider = value;
2492
2493                 if (provider != NULL && provider->driver != NULL &&
2494                                 provider->driver->type == driver->type &&
2495                                 g_strcmp0(provider->driver->name,
2496                                                         driver->name) == 0) {
2497                         provider->driver = NULL;
2498                 }
2499         }
2500 }
2501
2502 const char *vpn_provider_get_name(struct vpn_provider *provider)
2503 {
2504         return provider->name;
2505 }
2506
2507 const char *vpn_provider_get_host(struct vpn_provider *provider)
2508 {
2509         return provider->host;
2510 }
2511
2512 const char *vpn_provider_get_path(struct vpn_provider *provider)
2513 {
2514         return provider->path;
2515 }
2516
2517 static int agent_probe(struct connman_agent *agent)
2518 {
2519         DBG("agent %p", agent);
2520         return 0;
2521 }
2522
2523 static void agent_remove(struct connman_agent *agent)
2524 {
2525         DBG("agent %p", agent);
2526 }
2527
2528 static struct connman_agent_driver agent_driver = {
2529         .name           = "vpn",
2530         .interface      = VPN_AGENT_INTERFACE,
2531         .probe          = agent_probe,
2532         .remove         = agent_remove,
2533 };
2534
2535 static void remove_unprovisioned_providers()
2536 {
2537         gchar **providers;
2538         GKeyFile *keyfile, *configkeyfile;
2539         char *file, *section;
2540         int i = 0;
2541
2542         providers = __connman_storage_get_providers();
2543         if (providers == NULL)
2544                 return;
2545
2546         for (; providers[i] != NULL; i++) {
2547                 char *group = providers[i] + sizeof("provider_") - 1;
2548                 file = section = NULL;
2549                 keyfile = configkeyfile = NULL;
2550
2551                 keyfile = __connman_storage_load_provider(group);
2552                 if (keyfile == NULL)
2553                         continue;
2554
2555                 file = g_key_file_get_string(keyfile, group,
2556                                         "Config.file", NULL);
2557                 if (file == NULL)
2558                         goto next;
2559
2560                 section = g_key_file_get_string(keyfile, group,
2561                                         "Config.ident", NULL);
2562                 if (section == NULL)
2563                         goto next;
2564
2565                 configkeyfile = __connman_storage_load_provider_config(file);
2566                 if (configkeyfile == NULL) {
2567                         /*
2568                          * Config file is missing, remove the provisioned
2569                          * service.
2570                          */
2571                         __connman_storage_remove_provider(group);
2572                         goto next;
2573                 }
2574
2575                 if (g_key_file_has_group(configkeyfile, section) == FALSE)
2576                         /*
2577                          * Config section is missing, remove the provisioned
2578                          * service.
2579                          */
2580                         __connman_storage_remove_provider(group);
2581
2582         next:
2583                 if (keyfile != NULL)
2584                         g_key_file_free(keyfile);
2585
2586                 if (configkeyfile != NULL)
2587                         g_key_file_free(configkeyfile);
2588
2589                 g_free(section);
2590                 g_free(file);
2591         }
2592
2593         g_strfreev(providers);
2594 }
2595
2596 int __vpn_provider_init(gboolean do_routes)
2597 {
2598         int err;
2599
2600         DBG("");
2601
2602         handle_routes = do_routes;
2603
2604         err = connman_agent_driver_register(&agent_driver);
2605         if (err < 0) {
2606                 connman_error("Cannot register agent driver for %s",
2607                                                 agent_driver.name);
2608                 return err;
2609         }
2610
2611         connection = connman_dbus_get_connection();
2612
2613         remove_unprovisioned_providers();
2614
2615         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2616                                                 NULL, unregister_provider);
2617         return 0;
2618 }
2619
2620 void __vpn_provider_cleanup(void)
2621 {
2622         DBG("");
2623
2624         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2625
2626         g_hash_table_destroy(provider_hash);
2627         provider_hash = NULL;
2628
2629         connman_agent_driver_unregister(&agent_driver);
2630
2631         dbus_connection_unref(connection);
2632 }