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 immutable %s", provider,
 838                                         provider->immutable ? "yes" : "no");
 839
 840         if (provider->immutable == TRUE) {
 841                 /*
 842                  * Do not save providers that are provisioned via .config
 843                  * file.
 844                  */
 845                 return -EPERM;
 846         }
 847
 848         keyfile = g_key_file_new();
 849         if (keyfile == NULL)
 850                 return -ENOMEM;
 851
 852         g_key_file_set_string(keyfile, provider->identifier,
 853                         "Name", provider->name);
 854         g_key_file_set_string(keyfile, provider->identifier,
 855                         "Type", provider->type);
 856         g_key_file_set_string(keyfile, provider->identifier,
 857                         "Host", provider->host);
 858         g_key_file_set_string(keyfile, provider->identifier,
 859                         "VPN.Domain", provider->domain);
 860         if (provider->user_networks != NULL) {
 861                 gchar **networks;
 862                 gsize network_count;
 863
 864                 networks = create_network_list(provider->user_networks,
 865                                                         &network_count);
 866                 if (networks != NULL) {
 867                         g_key_file_set_string_list(keyfile,
 868                                                 provider->identifier,
 869                                                 "Networks",
 870                                                 (const gchar ** const)networks,
 871                                                 network_count);
 872                         g_strfreev(networks);
 873                 }
 874         }
 875
 876         if (provider->config_file != NULL && strlen(provider->config_file) > 0)
 877                 g_key_file_set_string(keyfile, provider->identifier,
 878                                 "Config.file", provider->config_file);
 879
 880         if (provider->config_entry != NULL &&
 881                                         strlen(provider->config_entry) > 0)
 882                 g_key_file_set_string(keyfile, provider->identifier,
 883                                 "Config.ident", provider->config_entry);
 884
 885         if (provider->driver != NULL && provider->driver->save != NULL)
 886                 provider->driver->save(provider, keyfile);
 887
 888         __connman_storage_save_provider(keyfile, provider->identifier);
 889         g_key_file_free(keyfile);
 890
 891         return 0;
 892 }
 893
 894 struct vpn_provider *__vpn_provider_lookup(const char *identifier)
 895 {
 896         struct vpn_provider *provider = NULL;
 897
 898         provider = g_hash_table_lookup(provider_hash, identifier);
 899
 900         return provider;
 901 }
 902
 903 static gboolean match_driver(struct vpn_provider *provider,
 904                                 struct vpn_provider_driver *driver)
 905 {
 906         if (g_strcmp0(driver->name, provider->type) == 0)
 907                 return TRUE;
 908
 909         return FALSE;
 910 }
 911
 912 static int provider_probe(struct vpn_provider *provider)
 913 {
 914         GSList *list;
 915
 916         DBG("provider %p driver %p name %s", provider, provider->driver,
 917                                                 provider->name);
 918
 919         if (provider->driver != NULL)
 920                 return -EALREADY;
 921
 922         for (list = driver_list; list; list = list->next) {
 923                 struct vpn_provider_driver *driver = list->data;
 924
 925                 if (match_driver(provider, driver) == FALSE)
 926                         continue;
 927
 928                 DBG("driver %p name %s", driver, driver->name);
 929
 930                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 931                         provider->driver = driver;
 932                         break;
 933                 }
 934         }
 935
 936         if (provider->driver == NULL)
 937                 return -ENODEV;
 938
 939         return 0;
 940 }
 941
 942 static void provider_remove(struct vpn_provider *provider)
 943 {
 944         if (provider->driver != NULL) {
 945                 provider->driver->remove(provider);
 946                 provider->driver = NULL;
 947         }
 948 }
 949
 950 static int provider_register(struct vpn_provider *provider)
 951 {
 952         return provider_probe(provider);
 953 }
 954
 955 static void provider_unregister(struct vpn_provider *provider)
 956 {
 957         provider_remove(provider);
 958 }
 959
 960 struct vpn_provider *
 961 vpn_provider_ref_debug(struct vpn_provider *provider,
 962                         const char *file, int line, const char *caller)
 963 {
 964         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount + 1,
 965                 file, line, caller);
 966
 967         __sync_fetch_and_add(&provider->refcount, 1);
 968
 969         return provider;
 970 }
 971
 972 static void provider_destruct(struct vpn_provider *provider)
 973 {
 974         DBG("provider %p", provider);
 975
 976         if (provider->notify_id != 0)
 977                 g_source_remove(provider->notify_id);
 978
 979         g_free(provider->name);
 980         g_free(provider->type);
 981         g_free(provider->host);
 982         g_free(provider->domain);
 983         g_free(provider->identifier);
 984         g_free(provider->path);
 985         g_slist_free_full(provider->user_networks, free_route);
 986         g_strfreev(provider->nameservers);
 987         g_hash_table_destroy(provider->routes);
 988         g_hash_table_destroy(provider->user_routes);
 989         g_hash_table_destroy(provider->setting_strings);
 990         if (provider->resolv != NULL) {
 991                 g_resolv_unref(provider->resolv);
 992                 provider->resolv = NULL;
 993         }
 994         __vpn_ipconfig_unref(provider->ipconfig_ipv4);
 995         __vpn_ipconfig_unref(provider->ipconfig_ipv6);
 996
 997         g_strfreev(provider->host_ip);
 998         g_free(provider->config_file);
 999         g_free(provider->config_entry);
1000         g_free(provider);
1001 }
1002
1003 void vpn_provider_unref_debug(struct vpn_provider *provider,
1004                                 const char *file, int line, const char *caller)
1005 {
1006         DBG("%p ref %d by %s:%d:%s()", provider, provider->refcount - 1,
1007                 file, line, caller);
1008
1009         if (__sync_fetch_and_sub(&provider->refcount, 1) != 1)
1010                 return;
1011
1012         provider_remove(provider);
1013
1014         provider_destruct(provider);
1015 }
1016
1017 static void configuration_count_add(void)
1018 {
1019         DBG("count %d", configuration_count + 1);
1020
1021         __sync_fetch_and_add(&configuration_count, 1);
1022 }
1023
1024 static void configuration_count_del(void)
1025 {
1026         DBG("count %d", configuration_count - 1);
1027
1028         if (__sync_fetch_and_sub(&configuration_count, 1) != 1)
1029                 return;
1030 }
1031
1032 int __vpn_provider_disconnect(struct vpn_provider *provider)
1033 {
1034         int err;
1035
1036         DBG("provider %p", provider);
1037
1038         if (provider->driver != NULL && provider->driver->disconnect != NULL)
1039                 err = provider->driver->disconnect(provider);
1040         else
1041                 return -EOPNOTSUPP;
1042
1043         if (err == -EINPROGRESS)
1044                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1045
1046         return err;
1047 }
1048
1049 static void connect_cb(struct vpn_provider *provider, void *user_data,
1050                                                                 int error)
1051 {
1052         DBusMessage *pending = user_data;
1053
1054         DBG("provider %p user %p error %d", provider, user_data, error);
1055
1056         if (error != 0) {
1057                 DBusMessage *reply = __connman_error_failed(pending, error);
1058                 if (reply != NULL)
1059                         g_dbus_send_message(connection, reply);
1060
1061                 vpn_provider_indicate_error(provider,
1062                                         VPN_PROVIDER_ERROR_CONNECT_FAILED);
1063                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1064         } else
1065                 g_dbus_send_reply(connection, pending, DBUS_TYPE_INVALID);
1066
1067         dbus_message_unref(pending);
1068 }
1069
1070 int __vpn_provider_connect(struct vpn_provider *provider, DBusMessage *msg)
1071 {
1072         int err;
1073
1074         DBG("provider %p", provider);
1075
1076         if (provider->driver != NULL && provider->driver->connect != NULL) {
1077                 dbus_message_ref(msg);
1078                 err = provider->driver->connect(provider, connect_cb, msg);
1079         } else
1080                 return -EOPNOTSUPP;
1081
1082         if (err == -EINPROGRESS)
1083                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_CONNECT);
1084
1085         return err;
1086 }
1087
1088 static void connection_removed_signal(struct vpn_provider *provider)
1089 {
1090         DBusMessage *signal;
1091         DBusMessageIter iter;
1092
1093         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1094                         VPN_MANAGER_INTERFACE, "ConnectionRemoved");
1095         if (signal == NULL)
1096                 return;
1097
1098         dbus_message_iter_init_append(signal, &iter);
1099         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1100                                                         &provider->path);
1101         dbus_connection_send(connection, signal, NULL);
1102         dbus_message_unref(signal);
1103 }
1104
1105 static char *get_ident(const char *path)
1106 {
1107         char *pos;
1108
1109         if (*path != '/')
1110                 return NULL;
1111
1112         pos = strrchr(path, '/');
1113         if (pos == NULL)
1114                 return NULL;
1115
1116         return pos + 1;
1117 }
1118
1119 int __vpn_provider_remove(const char *path)
1120 {
1121         struct vpn_provider *provider;
1122         char *ident;
1123
1124         DBG("path %s", path);
1125
1126         ident = get_ident(path);
1127
1128         provider = __vpn_provider_lookup(ident);
1129         if (provider != NULL)
1130                 return __vpn_provider_delete(provider);
1131
1132         return -ENXIO;
1133 }
1134
1135 int __vpn_provider_delete(struct vpn_provider *provider)
1136 {
1137         DBG("Deleting VPN %s", provider->identifier);
1138
1139         connection_removed_signal(provider);
1140
1141         provider_unregister(provider);
1142
1143         __connman_storage_remove_provider(provider->identifier);
1144
1145         g_hash_table_remove(provider_hash, provider->identifier);
1146
1147         return 0;
1148 }
1149
1150 static void append_ipv4(DBusMessageIter *iter, void *user_data)
1151 {
1152         struct vpn_provider *provider = user_data;
1153         const char *address, *gateway, *peer;
1154
1155         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv4);
1156         if (address != NULL) {
1157                 in_addr_t addr;
1158                 struct in_addr netmask;
1159                 char *mask;
1160                 int prefixlen;
1161
1162                 prefixlen = __vpn_ipconfig_get_prefixlen(
1163                                                 provider->ipconfig_ipv4);
1164
1165                 addr = 0xffffffff << (32 - prefixlen);
1166                 netmask.s_addr = htonl(addr);
1167                 mask = inet_ntoa(netmask);
1168
1169                 connman_dbus_dict_append_basic(iter, "Address",
1170                                                 DBUS_TYPE_STRING, &address);
1171
1172                 connman_dbus_dict_append_basic(iter, "Netmask",
1173                                                 DBUS_TYPE_STRING, &mask);
1174         }
1175
1176         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv4);
1177         if (gateway != NULL)
1178                 connman_dbus_dict_append_basic(iter, "Gateway",
1179                                                 DBUS_TYPE_STRING, &gateway);
1180
1181         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv4);
1182         if (peer != NULL)
1183                 connman_dbus_dict_append_basic(iter, "Peer",
1184                                                 DBUS_TYPE_STRING, &peer);
1185 }
1186
1187 static void append_ipv6(DBusMessageIter *iter, void *user_data)
1188 {
1189         struct vpn_provider *provider = user_data;
1190         const char *address, *gateway, *peer;
1191
1192         address = __vpn_ipconfig_get_local(provider->ipconfig_ipv6);
1193         if (address != NULL) {
1194                 unsigned char prefixlen;
1195
1196                 connman_dbus_dict_append_basic(iter, "Address",
1197                                                 DBUS_TYPE_STRING, &address);
1198
1199                 prefixlen = __vpn_ipconfig_get_prefixlen(
1200                                                 provider->ipconfig_ipv6);
1201
1202                 connman_dbus_dict_append_basic(iter, "PrefixLength",
1203                                                 DBUS_TYPE_BYTE, &prefixlen);
1204         }
1205
1206         gateway = __vpn_ipconfig_get_gateway(provider->ipconfig_ipv6);
1207         if (gateway != NULL)
1208                 connman_dbus_dict_append_basic(iter, "Gateway",
1209                                                 DBUS_TYPE_STRING, &gateway);
1210
1211         peer = __vpn_ipconfig_get_peer(provider->ipconfig_ipv6);
1212         if (peer != NULL)
1213                 connman_dbus_dict_append_basic(iter, "Peer",
1214                                                 DBUS_TYPE_STRING, &peer);
1215 }
1216
1217 static const char *state2string(enum vpn_provider_state state)
1218 {
1219         switch (state) {
1220         case VPN_PROVIDER_STATE_UNKNOWN:
1221                 break;
1222         case VPN_PROVIDER_STATE_IDLE:
1223                 return "idle";
1224         case VPN_PROVIDER_STATE_CONNECT:
1225                 return "configuration";
1226         case VPN_PROVIDER_STATE_READY:
1227                 return "ready";
1228         case VPN_PROVIDER_STATE_DISCONNECT:
1229                 return "disconnect";
1230         case VPN_PROVIDER_STATE_FAILURE:
1231                 return "failure";
1232         }
1233
1234         return NULL;
1235 }
1236
1237 static int provider_indicate_state(struct vpn_provider *provider,
1238                                 enum vpn_provider_state state)
1239 {
1240         const char *str;
1241         enum vpn_provider_state old_state;
1242
1243         str = state2string(state);
1244         DBG("provider %p state %s/%d", provider, str, state);
1245         if (str == NULL)
1246                 return -EINVAL;
1247
1248         old_state = provider->state;
1249         provider->state = state;
1250
1251         if (state == VPN_PROVIDER_STATE_READY) {
1252                 connman_dbus_property_changed_basic(provider->path,
1253                                         VPN_CONNECTION_INTERFACE, "Index",
1254                                         DBUS_TYPE_INT32, &provider->index);
1255
1256                 if (provider->family == AF_INET)
1257                         connman_dbus_property_changed_dict(provider->path,
1258                                         VPN_CONNECTION_INTERFACE, "IPv4",
1259                                         append_ipv4, provider);
1260                 else if (provider->family == AF_INET6)
1261                         connman_dbus_property_changed_dict(provider->path,
1262                                         VPN_CONNECTION_INTERFACE, "IPv6",
1263                                         append_ipv6, provider);
1264         }
1265
1266         if (old_state != state)
1267                 connman_dbus_property_changed_basic(provider->path,
1268                                         VPN_CONNECTION_INTERFACE, "State",
1269                                         DBUS_TYPE_STRING, &str);
1270
1271         /*
1272          * We do not stay in failure state as clients like connmand can
1273          * get confused about our current state.
1274          */
1275         if (provider->state == VPN_PROVIDER_STATE_FAILURE)
1276                 provider->state = VPN_PROVIDER_STATE_IDLE;
1277
1278         return 0;
1279 }
1280
1281 static void append_nameservers(DBusMessageIter *iter, char **servers)
1282 {
1283         int i;
1284
1285         DBG("%p", servers);
1286
1287         for (i = 0; servers[i] != NULL; i++) {
1288                 DBG("servers[%d] %s", i, servers[i]);
1289                 dbus_message_iter_append_basic(iter,
1290                                         DBUS_TYPE_STRING, &servers[i]);
1291         }
1292 }
1293
1294 static void append_dns(DBusMessageIter *iter, void *user_data)
1295 {
1296         struct vpn_provider *provider = user_data;
1297
1298         if (provider->nameservers != NULL)
1299                 append_nameservers(iter, provider->nameservers);
1300 }
1301
1302 static void append_state(DBusMessageIter *iter,
1303                                         struct vpn_provider *provider)
1304 {
1305         char *str;
1306
1307         switch (provider->state) {
1308         case VPN_PROVIDER_STATE_UNKNOWN:
1309         case VPN_PROVIDER_STATE_IDLE:
1310                 str = "idle";
1311                 break;
1312         case VPN_PROVIDER_STATE_CONNECT:
1313                 str = "configuration";
1314                 break;
1315         case VPN_PROVIDER_STATE_READY:
1316                 str = "ready";
1317                 break;
1318         case VPN_PROVIDER_STATE_DISCONNECT:
1319                 str = "disconnect";
1320                 break;
1321         case VPN_PROVIDER_STATE_FAILURE:
1322                 str = "failure";
1323                 break;
1324         }
1325
1326         connman_dbus_dict_append_basic(iter, "State",
1327                                 DBUS_TYPE_STRING, &str);
1328 }
1329
1330 static void append_properties(DBusMessageIter *iter,
1331                                         struct vpn_provider *provider)
1332 {
1333         DBusMessageIter dict;
1334         GHashTableIter hash;
1335         gpointer value, key;
1336
1337         connman_dbus_dict_open(iter, &dict);
1338
1339         append_state(&dict, provider);
1340
1341         if (provider->type != NULL)
1342                 connman_dbus_dict_append_basic(&dict, "Type",
1343                                         DBUS_TYPE_STRING, &provider->type);
1344
1345         if (provider->name != NULL)
1346                 connman_dbus_dict_append_basic(&dict, "Name",
1347                                         DBUS_TYPE_STRING, &provider->name);
1348
1349         if (provider->host != NULL)
1350                 connman_dbus_dict_append_basic(&dict, "Host",
1351                                         DBUS_TYPE_STRING, &provider->host);
1352         if (provider->index >= 0)
1353                 connman_dbus_dict_append_basic(&dict, "Index",
1354                                         DBUS_TYPE_INT32, &provider->index);
1355         if (provider->domain != NULL)
1356                 connman_dbus_dict_append_basic(&dict, "Domain",
1357                                         DBUS_TYPE_STRING, &provider->domain);
1358
1359         connman_dbus_dict_append_basic(&dict, "Immutable", DBUS_TYPE_BOOLEAN,
1360                                         &provider->immutable);
1361
1362         if (provider->family == AF_INET)
1363                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1364                                                 provider);
1365         else if (provider->family == AF_INET6)
1366                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1367                                                 provider);
1368
1369         connman_dbus_dict_append_array(&dict, "Nameservers",
1370                                 DBUS_TYPE_STRING, append_dns, provider);
1371
1372         connman_dbus_dict_append_array(&dict, "UserRoutes",
1373                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1374                                 provider->user_routes);
1375
1376         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1377                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1378                                 provider->routes);
1379
1380         if (provider->setting_strings != NULL) {
1381                 g_hash_table_iter_init(&hash, provider->setting_strings);
1382
1383                 while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1384                         struct vpn_setting *setting = value;
1385
1386                         if (setting->hide_value == FALSE &&
1387                                                         setting->value != NULL)
1388                                 connman_dbus_dict_append_basic(&dict, key,
1389                                                         DBUS_TYPE_STRING,
1390                                                         &setting->value);
1391                 }
1392         }
1393
1394         connman_dbus_dict_close(iter, &dict);
1395 }
1396
1397 static void connection_added_signal(struct vpn_provider *provider)
1398 {
1399         DBusMessage *signal;
1400         DBusMessageIter iter;
1401
1402         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1403                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1404         if (signal == NULL)
1405                 return;
1406
1407         dbus_message_iter_init_append(signal, &iter);
1408         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1409                                                         &provider->path);
1410         append_properties(&iter, provider);
1411
1412         dbus_connection_send(connection, signal, NULL);
1413         dbus_message_unref(signal);
1414 }
1415
1416 static connman_bool_t check_host(char **hosts, char *host)
1417 {
1418         int i;
1419
1420         if (hosts == NULL)
1421                 return FALSE;
1422
1423         for (i = 0; hosts[i] != NULL; i++) {
1424                 if (g_strcmp0(hosts[i], host) == 0)
1425                         return TRUE;
1426         }
1427
1428         return FALSE;
1429 }
1430
1431 static void provider_append_routes(gpointer key, gpointer value,
1432                                         gpointer user_data)
1433 {
1434         struct vpn_route *route = value;
1435         struct vpn_provider *provider = user_data;
1436         int index = provider->index;
1437
1438         if (handle_routes == FALSE)
1439                 return;
1440
1441         /*
1442          * If the VPN administrator/user has given a route to
1443          * VPN server, then we must discard that because the
1444          * server cannot be contacted via VPN tunnel.
1445          */
1446         if (check_host(provider->host_ip, route->network) == TRUE) {
1447                 DBG("Discarding VPN route to %s via %s at index %d",
1448                         route->network, route->gateway, index);
1449                 return;
1450         }
1451
1452         if (route->family == AF_INET6) {
1453                 unsigned char prefix_len = atoi(route->netmask);
1454
1455                 connman_inet_add_ipv6_network_route(index, route->network,
1456                                                         route->gateway,
1457                                                         prefix_len);
1458         } else {
1459                 connman_inet_add_network_route(index, route->network,
1460                                                 route->gateway,
1461                                                 route->netmask);
1462         }
1463 }
1464
1465 static int set_connected(struct vpn_provider *provider,
1466                                         connman_bool_t connected)
1467 {
1468         struct vpn_ipconfig *ipconfig;
1469
1470         DBG("provider %p id %s connected %d", provider,
1471                                         provider->identifier, connected);
1472
1473         if (connected == TRUE) {
1474                 if (provider->family == AF_INET6)
1475                         ipconfig = provider->ipconfig_ipv6;
1476                 else
1477                         ipconfig = provider->ipconfig_ipv4;
1478
1479                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1480
1481                 if (handle_routes == TRUE)
1482                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1483
1484                 provider_indicate_state(provider,
1485                                         VPN_PROVIDER_STATE_READY);
1486
1487                 g_hash_table_foreach(provider->routes, provider_append_routes,
1488                                         provider);
1489
1490                 g_hash_table_foreach(provider->user_routes,
1491                                         provider_append_routes, provider);
1492
1493         } else {
1494                 provider_indicate_state(provider,
1495                                         VPN_PROVIDER_STATE_DISCONNECT);
1496
1497                 provider_indicate_state(provider,
1498                                         VPN_PROVIDER_STATE_IDLE);
1499         }
1500
1501         return 0;
1502 }
1503
1504 int vpn_provider_set_state(struct vpn_provider *provider,
1505                                         enum vpn_provider_state state)
1506 {
1507         if (provider == NULL)
1508                 return -EINVAL;
1509
1510         switch (state) {
1511         case VPN_PROVIDER_STATE_UNKNOWN:
1512                 return -EINVAL;
1513         case VPN_PROVIDER_STATE_IDLE:
1514                 return set_connected(provider, FALSE);
1515         case VPN_PROVIDER_STATE_CONNECT:
1516                 return provider_indicate_state(provider, state);
1517         case VPN_PROVIDER_STATE_READY:
1518                 return set_connected(provider, TRUE);
1519         case VPN_PROVIDER_STATE_DISCONNECT:
1520                 return provider_indicate_state(provider, state);
1521         case VPN_PROVIDER_STATE_FAILURE:
1522                 return provider_indicate_state(provider, state);
1523         }
1524         return -EINVAL;
1525 }
1526
1527 int vpn_provider_indicate_error(struct vpn_provider *provider,
1528                                         enum vpn_provider_error error)
1529 {
1530         DBG("provider %p id %s error %d", provider, provider->identifier,
1531                                                                         error);
1532
1533         switch (error) {
1534         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1535                 break;
1536         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1537                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1538                 break;
1539         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1540                 break;
1541         default:
1542                 break;
1543         }
1544
1545         return 0;
1546 }
1547
1548 static int connection_unregister(struct vpn_provider *provider)
1549 {
1550         DBG("provider %p path %s", provider, provider->path);
1551
1552         if (provider->path == NULL)
1553                 return -EALREADY;
1554
1555         g_dbus_unregister_interface(connection, provider->path,
1556                                 VPN_CONNECTION_INTERFACE);
1557
1558         g_free(provider->path);
1559         provider->path = NULL;
1560
1561         return 0;
1562 }
1563
1564 static int connection_register(struct vpn_provider *provider)
1565 {
1566         DBG("provider %p path %s", provider, provider->path);
1567
1568         if (provider->path != NULL)
1569                 return -EALREADY;
1570
1571         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1572                                                 provider->identifier);
1573
1574         g_dbus_register_interface(connection, provider->path,
1575                                 VPN_CONNECTION_INTERFACE,
1576                                 connection_methods, connection_signals,
1577                                 NULL, provider, NULL);
1578
1579         return 0;
1580 }
1581
1582 static void unregister_provider(gpointer data)
1583 {
1584         struct vpn_provider *provider = data;
1585
1586         configuration_count_del();
1587
1588         connection_unregister(provider);
1589
1590         vpn_provider_unref(provider);
1591 }
1592
1593 static void provider_initialize(struct vpn_provider *provider)
1594 {
1595         DBG("provider %p", provider);
1596
1597         provider->index = 0;
1598         provider->fd = -1;
1599         provider->name = NULL;
1600         provider->type = NULL;
1601         provider->domain = NULL;
1602         provider->identifier = NULL;
1603         provider->immutable = FALSE;
1604         provider->user_networks = NULL;
1605         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1606                                         NULL, free_route);
1607         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1608                                         g_free, free_route);
1609         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1610                                         g_str_equal, g_free, free_setting);
1611 }
1612
1613 static struct vpn_provider *vpn_provider_new(void)
1614 {
1615         struct vpn_provider *provider;
1616
1617         provider = g_try_new0(struct vpn_provider, 1);
1618         if (provider == NULL)
1619                 return NULL;
1620
1621         provider->refcount = 1;
1622
1623         DBG("provider %p", provider);
1624         provider_initialize(provider);
1625
1626         return provider;
1627 }
1628
1629 static struct vpn_provider *vpn_provider_get(const char *identifier)
1630 {
1631         struct vpn_provider *provider;
1632
1633         provider = g_hash_table_lookup(provider_hash, identifier);
1634         if (provider != NULL)
1635                 return provider;
1636
1637         provider = vpn_provider_new();
1638         if (provider == NULL)
1639                 return NULL;
1640
1641         DBG("provider %p", provider);
1642
1643         provider->identifier = g_strdup(identifier);
1644
1645         g_hash_table_insert(provider_hash, provider->identifier, provider);
1646
1647         configuration_count_add();
1648
1649         return provider;
1650 }
1651
1652 static void provider_dbus_ident(char *ident)
1653 {
1654         int i, len = strlen(ident);
1655
1656         for (i = 0; i < len; i++) {
1657                 if (ident[i] >= '0' && ident[i] <= '9')
1658                         continue;
1659                 if (ident[i] >= 'a' && ident[i] <= 'z')
1660                         continue;
1661                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1662                         continue;
1663                 ident[i] = '_';
1664         }
1665 }
1666
1667 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1668                 const char *ident)
1669 {
1670         struct vpn_provider *provider;
1671
1672         if (keyfile == NULL || ident == NULL)
1673                 return NULL;
1674
1675         provider = __vpn_provider_lookup(ident);
1676         if (provider == NULL) {
1677                 provider = vpn_provider_get(ident);
1678                 if (provider == NULL) {
1679                         DBG("can not create provider");
1680                         return NULL;
1681                 }
1682
1683                 provider_load_from_keyfile(provider, keyfile);
1684
1685                 if (provider->name == NULL || provider->host == NULL ||
1686                                 provider->domain == NULL) {
1687                         DBG("cannot get name, host or domain");
1688                         vpn_provider_unref(provider);
1689                         return NULL;
1690                 }
1691
1692                 if (provider_register(provider) == 0)
1693                         connection_register(provider);
1694         }
1695         return provider;
1696 }
1697
1698 static void provider_create_all_from_type(const char *provider_type)
1699 {
1700         unsigned int i;
1701         char **providers;
1702         char *id, *type;
1703         GKeyFile *keyfile;
1704
1705         DBG("provider type %s", provider_type);
1706
1707         providers = __connman_storage_get_providers();
1708
1709         if (providers == NULL)
1710                 return;
1711
1712         for (i = 0; providers[i] != NULL; i+=1) {
1713
1714                 if (strncmp(providers[i], "provider_", 9) != 0)
1715                         continue;
1716
1717                 id = providers[i] + 9;
1718                 keyfile = __connman_storage_load_provider(id);
1719
1720                 if (keyfile == NULL)
1721                         continue;
1722
1723                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1724
1725                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1726
1727                 if (strcmp(provider_type, type) != 0) {
1728                         g_free(type);
1729                         g_key_file_free(keyfile);
1730                         continue;
1731                 }
1732
1733                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1734                         DBG("could not create provider");
1735
1736                 g_free(type);
1737                 g_key_file_free(keyfile);
1738         }
1739         g_strfreev(providers);
1740 }
1741
1742 char *__vpn_provider_create_identifier(const char *host, const char *domain)
1743 {
1744         char *ident;
1745
1746         ident = g_strdup_printf("%s_%s", host, domain);
1747         if (ident == NULL)
1748                 return NULL;
1749
1750         provider_dbus_ident(ident);
1751
1752         return ident;
1753 }
1754
1755 int __vpn_provider_create(DBusMessage *msg)
1756 {
1757         struct vpn_provider *provider;
1758         DBusMessageIter iter, array;
1759         const char *type = NULL, *name = NULL;
1760         const char *host = NULL, *domain = NULL;
1761         GSList *networks = NULL;
1762         char *ident;
1763         int err;
1764
1765         dbus_message_iter_init(msg, &iter);
1766         dbus_message_iter_recurse(&iter, &array);
1767
1768         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1769                 DBusMessageIter entry, value;
1770                 const char *key;
1771
1772                 dbus_message_iter_recurse(&array, &entry);
1773                 dbus_message_iter_get_basic(&entry, &key);
1774
1775                 dbus_message_iter_next(&entry);
1776                 dbus_message_iter_recurse(&entry, &value);
1777
1778                 switch (dbus_message_iter_get_arg_type(&value)) {
1779                 case DBUS_TYPE_STRING:
1780                         if (g_str_equal(key, "Type") == TRUE)
1781                                 dbus_message_iter_get_basic(&value, &type);
1782                         else if (g_str_equal(key, "Name") == TRUE)
1783                                 dbus_message_iter_get_basic(&value, &name);
1784                         else if (g_str_equal(key, "Host") == TRUE)
1785                                 dbus_message_iter_get_basic(&value, &host);
1786                         else if (g_str_equal(key, "VPN.Domain") == TRUE ||
1787                                         g_str_equal(key, "Domain") == TRUE)
1788                                 dbus_message_iter_get_basic(&value, &domain);
1789                         break;
1790                 case DBUS_TYPE_ARRAY:
1791                         if (g_str_equal(key, "UserRoutes") == TRUE)
1792                                 networks = get_user_networks(&value);
1793                         break;
1794                 }
1795
1796                 dbus_message_iter_next(&array);
1797         }
1798
1799         if (host == NULL || domain == NULL)
1800                 return -EINVAL;
1801
1802         DBG("Type %s name %s networks %p", type, name, networks);
1803
1804         if (type == NULL || name == NULL)
1805                 return -EOPNOTSUPP;
1806
1807         ident = __vpn_provider_create_identifier(host, domain);
1808         DBG("ident %s", ident);
1809
1810         provider = __vpn_provider_lookup(ident);
1811         if (provider == NULL) {
1812                 provider = vpn_provider_get(ident);
1813                 if (provider == NULL) {
1814                         DBG("can not create provider");
1815                         g_free(ident);
1816                         return -EOPNOTSUPP;
1817                 }
1818
1819                 provider->host = g_strdup(host);
1820                 provider->domain = g_strdup(domain);
1821                 provider->name = g_strdup(name);
1822                 provider->type = g_strdup(type);
1823
1824                 if (provider_register(provider) == 0)
1825                         vpn_provider_load(provider);
1826
1827                 provider_resolv_host_addr(provider);
1828         }
1829
1830         if (networks != NULL) {
1831                 g_slist_free_full(provider->user_networks, free_route);
1832                 provider->user_networks = networks;
1833                 set_user_networks(provider, provider->user_networks);
1834         }
1835
1836         dbus_message_iter_init(msg, &iter);
1837         dbus_message_iter_recurse(&iter, &array);
1838
1839         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1840                 DBusMessageIter entry, value;
1841                 const char *key, *str;
1842
1843                 dbus_message_iter_recurse(&array, &entry);
1844                 dbus_message_iter_get_basic(&entry, &key);
1845
1846                 dbus_message_iter_next(&entry);
1847                 dbus_message_iter_recurse(&entry, &value);
1848
1849                 switch (dbus_message_iter_get_arg_type(&value)) {
1850                 case DBUS_TYPE_STRING:
1851                         dbus_message_iter_get_basic(&value, &str);
1852                         vpn_provider_set_string(provider, key, str);
1853                         break;
1854                 }
1855
1856                 dbus_message_iter_next(&array);
1857         }
1858
1859         g_free(ident);
1860
1861         vpn_provider_save(provider);
1862
1863         err = provider_register(provider);
1864         if (err != 0 && err != -EALREADY)
1865                 return err;
1866
1867         connection_register(provider);
1868
1869         DBG("provider %p index %d path %s", provider, provider->index,
1870                                                         provider->path);
1871
1872         g_dbus_send_reply(connection, msg,
1873                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1874                                 DBUS_TYPE_INVALID);
1875
1876         connection_added_signal(provider);
1877
1878         return 0;
1879 }
1880
1881 static const char *get_string(GHashTable *settings, const char *key)
1882 {
1883         DBG("settings %p key %s", settings, key);
1884
1885         return g_hash_table_lookup(settings, key);
1886 }
1887
1888 static GSList *parse_user_networks(const char *network_str)
1889 {
1890         GSList *networks = NULL;
1891         char **elems;
1892         int i = 0;
1893
1894         if (network_str == NULL)
1895                 return NULL;
1896
1897         elems = g_strsplit(network_str, ",", 0);
1898         if (elems == NULL)
1899                 return NULL;
1900
1901         while (elems[i] != NULL) {
1902                 struct vpn_route *vpn_route;
1903                 char *network, *netmask, *gateway;
1904                 int family;
1905                 char **route;
1906
1907                 route = g_strsplit(elems[i], "/", 0);
1908                 if (route == NULL)
1909                         goto next;
1910
1911                 network = route[0];
1912                 if (network == NULL || network[0] == '\0')
1913                         goto next;
1914
1915                 family = connman_inet_check_ipaddress(network);
1916                 if (family < 0) {
1917                         DBG("Cannot get address family of %s (%d/%s)", network,
1918                                 family, gai_strerror(family));
1919
1920                         goto next;
1921                 }
1922
1923                 switch (family) {
1924                 case AF_INET:
1925                         break;
1926                 case AF_INET6:
1927                         break;
1928                 default:
1929                         DBG("Unsupported address family %d", family);
1930                         goto next;
1931                 }
1932
1933                 netmask = route[1];
1934                 if (netmask == NULL || netmask[0] == '\0')
1935                         goto next;
1936
1937                 gateway = route[2];
1938
1939                 vpn_route = g_try_new0(struct vpn_route, 1);
1940                 if (vpn_route == NULL) {
1941                         g_strfreev(route);
1942                         break;
1943                 }
1944
1945                 vpn_route->family = family;
1946                 vpn_route->network = g_strdup(network);
1947                 vpn_route->netmask = g_strdup(netmask);
1948                 vpn_route->gateway = g_strdup(gateway);
1949
1950                 DBG("route %s/%s%s%s", network, netmask,
1951                         gateway ? " via " : "", gateway ? gateway : "");
1952
1953                 networks = g_slist_prepend(networks, vpn_route);
1954
1955         next:
1956                 g_strfreev(route);
1957                 i++;
1958         }
1959
1960         g_strfreev(elems);
1961
1962         return g_slist_reverse(networks);
1963 }
1964
1965 int __vpn_provider_create_from_config(GHashTable *settings,
1966                                 const char *config_ident,
1967                                 const char *config_entry)
1968 {
1969         struct vpn_provider *provider;
1970         const char *type, *name, *host, *domain, *networks_str;
1971         GSList *networks;
1972         char *ident = NULL;
1973         GHashTableIter hash;
1974         gpointer value, key;
1975         int err;
1976
1977         type = get_string(settings, "Type");
1978         name = get_string(settings, "Name");
1979         host = get_string(settings, "Host");
1980         domain = get_string(settings, "Domain");
1981         networks_str = get_string(settings, "Networks");
1982         networks = parse_user_networks(networks_str);
1983
1984         if (host == NULL || domain == NULL) {
1985                 err = -EINVAL;
1986                 goto fail;
1987         }
1988
1989         DBG("type %s name %s networks %s", type, name, networks_str);
1990
1991         if (type == NULL || name == NULL) {
1992                 err = -EOPNOTSUPP;
1993                 goto fail;
1994         }
1995
1996         ident = __vpn_provider_create_identifier(host, domain);
1997         DBG("ident %s", ident);
1998
1999         provider = __vpn_provider_lookup(ident);
2000         if (provider == NULL) {
2001                 provider = vpn_provider_get(ident);
2002                 if (provider == NULL) {
2003                         DBG("can not create provider");
2004                         err = -EOPNOTSUPP;
2005                         goto fail;
2006                 }
2007
2008                 provider->host = g_strdup(host);
2009                 provider->domain = g_strdup(domain);
2010                 provider->name = g_strdup(name);
2011                 provider->type = g_ascii_strdown(type, -1);
2012
2013                 provider->config_file = g_strdup(config_ident);
2014                 provider->config_entry = g_strdup(config_entry);
2015
2016                 provider_register(provider);
2017
2018                 provider_resolv_host_addr(provider);
2019         }
2020
2021         if (networks != NULL) {
2022                 g_slist_free_full(provider->user_networks, free_route);
2023                 provider->user_networks = networks;
2024                 set_user_networks(provider, provider->user_networks);
2025         }
2026
2027         g_hash_table_iter_init(&hash, settings);
2028
2029         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE)
2030                 __vpn_provider_set_string_immutable(provider, key, value);
2031
2032         provider->immutable = TRUE;
2033
2034         vpn_provider_save(provider);
2035
2036         err = provider_register(provider);
2037         if (err != 0 && err != -EALREADY)
2038                 goto fail;
2039
2040         connection_register(provider);
2041
2042         DBG("provider %p index %d path %s", provider, provider->index,
2043                                                         provider->path);
2044
2045         connection_added_signal(provider);
2046
2047         g_free(ident);
2048
2049         return 0;
2050
2051 fail:
2052         g_free(ident);
2053         g_slist_free_full(networks, free_route);
2054
2055         return err;
2056 }
2057
2058 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
2059 {
2060         DBusMessageIter entry;
2061         GHashTableIter hash;
2062         gpointer value, key;
2063
2064         g_hash_table_iter_init(&hash, provider_hash);
2065
2066         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
2067                 struct vpn_provider *provider = value;
2068
2069                 DBG("path %s", provider->path);
2070
2071                 if (provider->identifier == NULL)
2072                         continue;
2073
2074                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
2075                                 NULL, &entry);
2076                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
2077                                 &provider->path);
2078                 append_properties(&entry, provider);
2079                 dbus_message_iter_close_container(iter, &entry);
2080         }
2081 }
2082
2083 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
2084 {
2085         DBusMessage *reply;
2086
2087         DBG("");
2088
2089         reply = dbus_message_new_method_return(msg);
2090         if (reply == NULL)
2091                 return NULL;
2092
2093         __connman_dbus_append_objpath_dict_array(reply,
2094                         append_connection_structs, NULL);
2095
2096         return reply;
2097 }
2098
2099 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
2100 {
2101         if (provider == NULL)
2102                 return NULL;
2103
2104         return provider->identifier;
2105 }
2106
2107 static int set_string(struct vpn_provider *provider,
2108                         const char *key, const char *value,
2109                         gboolean hide_value, gboolean immutable)
2110 {
2111         DBG("provider %p key %s immutable %s value %s", provider, key,
2112                 immutable ? "yes" : "no",
2113                 hide_value ? "<not printed>" : value);
2114
2115         if (g_str_equal(key, "Type") == TRUE) {
2116                 g_free(provider->type);
2117                 provider->type = g_ascii_strdown(value, -1);
2118                 send_value(provider->path, "Type", provider->type);
2119         } else if (g_str_equal(key, "Name") == TRUE) {
2120                 g_free(provider->name);
2121                 provider->name = g_strdup(value);
2122                 send_value(provider->path, "Name", provider->name);
2123         } else if (g_str_equal(key, "Host") == TRUE) {
2124                 g_free(provider->host);
2125                 provider->host = g_strdup(value);
2126                 send_value(provider->path, "Host", provider->host);
2127         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2128                         g_str_equal(key, "Domain") == TRUE) {
2129                 g_free(provider->domain);
2130                 provider->domain = g_strdup(value);
2131                 send_value(provider->path, "Domain", provider->domain);
2132         } else {
2133                 struct vpn_setting *setting;
2134
2135                 setting = g_hash_table_lookup(provider->setting_strings, key);
2136                 if (setting != NULL && immutable == FALSE &&
2137                                                 setting->immutable == TRUE) {
2138                         DBG("Trying to set immutable variable %s", key);
2139                         return -EPERM;
2140                 }
2141
2142                 setting = g_try_new0(struct vpn_setting, 1);
2143                 if (setting == NULL)
2144                         return -ENOMEM;
2145
2146                 setting->value = g_strdup(value);
2147                 setting->hide_value = hide_value;
2148
2149                 if (immutable == TRUE)
2150                         setting->immutable = TRUE;
2151
2152                 if (hide_value == FALSE)
2153                         send_value(provider->path, key, setting->value);
2154
2155                 g_hash_table_replace(provider->setting_strings,
2156                                 g_strdup(key), setting);
2157         }
2158
2159         return 0;
2160 }
2161
2162 int vpn_provider_set_string(struct vpn_provider *provider,
2163                                         const char *key, const char *value)
2164 {
2165         return set_string(provider, key, value, FALSE, FALSE);
2166 }
2167
2168 int vpn_provider_set_string_hide_value(struct vpn_provider *provider,
2169                                         const char *key, const char *value)
2170 {
2171         return set_string(provider, key, value, TRUE, FALSE);
2172 }
2173
2174 int __vpn_provider_set_string_immutable(struct vpn_provider *provider,
2175                                         const char *key, const char *value)
2176 {
2177         return set_string(provider, key, value, FALSE, TRUE);
2178 }
2179
2180 const char *vpn_provider_get_string(struct vpn_provider *provider,
2181                                                         const char *key)
2182 {
2183         struct vpn_setting *setting;
2184
2185         DBG("provider %p key %s", provider, key);
2186
2187         if (g_str_equal(key, "Type") == TRUE)
2188                 return provider->type;
2189         else if (g_str_equal(key, "Name") == TRUE)
2190                 return provider->name;
2191         else if (g_str_equal(key, "Host") == TRUE)
2192                 return provider->host;
2193         else if (g_str_equal(key, "HostIP") == TRUE) {
2194                 if (provider->host_ip == NULL ||
2195                                 provider->host_ip[0] == NULL)
2196                         return provider->host;
2197                 else
2198                         return provider->host_ip[0];
2199         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2200                         g_str_equal(key, "Domain") == TRUE)
2201                 return provider->domain;
2202
2203         setting = g_hash_table_lookup(provider->setting_strings, key);
2204         if (setting == NULL)
2205                 return NULL;
2206
2207         return setting->value;
2208 }
2209
2210 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
2211 {
2212         if (provider == NULL)
2213                 return FALSE;
2214
2215         if (provider->user_routes != NULL &&
2216                         g_hash_table_size(provider->user_routes) > 0)
2217                 return TRUE;
2218
2219         if (provider->routes != NULL &&
2220                         g_hash_table_size(provider->routes) > 0)
2221                 return TRUE;
2222
2223         return FALSE;
2224 }
2225
2226 void *vpn_provider_get_data(struct vpn_provider *provider)
2227 {
2228         return provider->driver_data;
2229 }
2230
2231 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
2232 {
2233         provider->driver_data = data;
2234 }
2235
2236 void vpn_provider_set_index(struct vpn_provider *provider, int index)
2237 {
2238         DBG("index %d provider %p", index, provider);
2239
2240         if (provider->ipconfig_ipv4 == NULL) {
2241                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
2242                                                                 AF_INET);
2243                 if (provider->ipconfig_ipv4 == NULL) {
2244                         DBG("Couldnt create ipconfig for IPv4");
2245                         goto done;
2246                 }
2247         }
2248
2249         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
2250
2251         if (provider->ipconfig_ipv6 == NULL) {
2252                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
2253                                                                 AF_INET6);
2254                 if (provider->ipconfig_ipv6 == NULL) {
2255                         DBG("Couldnt create ipconfig for IPv6");
2256                         goto done;
2257                 }
2258         }
2259
2260         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
2261
2262 done:
2263         provider->index = index;
2264 }
2265
2266 int vpn_provider_get_index(struct vpn_provider *provider)
2267 {
2268         return provider->index;
2269 }
2270
2271 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
2272                                         struct connman_ipaddress *ipaddress)
2273 {
2274         struct vpn_ipconfig *ipconfig = NULL;
2275
2276         switch (ipaddress->family) {
2277         case AF_INET:
2278                 ipconfig = provider->ipconfig_ipv4;
2279                 break;
2280         case AF_INET6:
2281                 ipconfig = provider->ipconfig_ipv6;
2282                 break;
2283         default:
2284                 break;
2285         }
2286
2287         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
2288                                                         ipaddress->family);
2289
2290         if (ipconfig == NULL)
2291                 return -EINVAL;
2292
2293         provider->family = ipaddress->family;
2294
2295         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
2296         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
2297         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
2298         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
2299         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
2300
2301         return 0;
2302 }
2303
2304 int vpn_provider_set_pac(struct vpn_provider *provider,
2305                                 const char *pac)
2306 {
2307         DBG("provider %p pac %s", provider, pac);
2308
2309         return 0;
2310 }
2311
2312
2313 int vpn_provider_set_domain(struct vpn_provider *provider,
2314                                         const char *domain)
2315 {
2316         DBG("provider %p domain %s", provider, domain);
2317
2318         g_free(provider->domain);
2319         provider->domain = g_strdup(domain);
2320
2321         return 0;
2322 }
2323
2324 int vpn_provider_set_nameservers(struct vpn_provider *provider,
2325                                         const char *nameservers)
2326 {
2327         DBG("provider %p nameservers %s", provider, nameservers);
2328
2329         g_strfreev(provider->nameservers);
2330         provider->nameservers = NULL;
2331
2332         if (nameservers == NULL)
2333                 return 0;
2334
2335         provider->nameservers = g_strsplit(nameservers, " ", 0);
2336
2337         return 0;
2338 }
2339
2340 enum provider_route_type {
2341         PROVIDER_ROUTE_TYPE_NONE = 0,
2342         PROVIDER_ROUTE_TYPE_MASK = 1,
2343         PROVIDER_ROUTE_TYPE_ADDR = 2,
2344         PROVIDER_ROUTE_TYPE_GW   = 3,
2345 };
2346
2347 static int route_env_parse(struct vpn_provider *provider, const char *key,
2348                                 int *family, unsigned long *idx,
2349                                 enum provider_route_type *type)
2350 {
2351         char *end;
2352         const char *start;
2353
2354         DBG("name %s", provider->name);
2355
2356         if (!strcmp(provider->type, "openvpn")) {
2357                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
2358                         start = key + strlen("route_network_");
2359                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2360                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2361                         start = key + strlen("route_netmask_");
2362                         *type = PROVIDER_ROUTE_TYPE_MASK;
2363                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2364                         start = key + strlen("route_gateway_");
2365                         *type = PROVIDER_ROUTE_TYPE_GW;
2366                 } else
2367                         return -EINVAL;
2368
2369                 *family = AF_INET;
2370                 *idx = g_ascii_strtoull(start, &end, 10);
2371
2372         } else if (!strcmp(provider->type, "openconnect")) {
2373                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2374                         *family = AF_INET;
2375                         start = key + strlen("CISCO_SPLIT_INC_");
2376                 } else if (g_str_has_prefix(key,
2377                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2378                         *family = AF_INET6;
2379                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2380                 } else
2381                         return -EINVAL;
2382
2383                 *idx = g_ascii_strtoull(start, &end, 10);
2384
2385                 if (strncmp(end, "_ADDR", 5) == 0)
2386                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2387                 else if (strncmp(end, "_MASK", 5) == 0)
2388                         *type = PROVIDER_ROUTE_TYPE_MASK;
2389                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2390                                 *family == AF_INET6) {
2391                         *type = PROVIDER_ROUTE_TYPE_MASK;
2392                 } else
2393                         return -EINVAL;
2394         }
2395
2396         return 0;
2397 }
2398
2399 int vpn_provider_append_route(struct vpn_provider *provider,
2400                                         const char *key, const char *value)
2401 {
2402         struct vpn_route *route;
2403         int ret, family = 0;
2404         unsigned long idx = 0;
2405         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2406
2407         DBG("key %s value %s", key, value);
2408
2409         ret = route_env_parse(provider, key, &family, &idx, &type);
2410         if (ret < 0)
2411                 return ret;
2412
2413         DBG("idx %lu family %d type %d", idx, family, type);
2414
2415         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2416         if (route == NULL) {
2417                 route = g_try_new0(struct vpn_route, 1);
2418                 if (route == NULL) {
2419                         connman_error("out of memory");
2420                         return -ENOMEM;
2421                 }
2422
2423                 route->family = family;
2424
2425                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2426                                                 route);
2427         }
2428
2429         switch (type) {
2430         case PROVIDER_ROUTE_TYPE_NONE:
2431                 break;
2432         case PROVIDER_ROUTE_TYPE_MASK:
2433                 route->netmask = g_strdup(value);
2434                 break;
2435         case PROVIDER_ROUTE_TYPE_ADDR:
2436                 route->network = g_strdup(value);
2437                 break;
2438         case PROVIDER_ROUTE_TYPE_GW:
2439                 route->gateway = g_strdup(value);
2440                 break;
2441         }
2442
2443         if (handle_routes == FALSE) {
2444                 if (route->netmask != NULL && route->gateway != NULL &&
2445                                                         route->network != NULL)
2446                         provider_schedule_changed(provider);
2447         }
2448
2449         return 0;
2450 }
2451
2452 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2453 {
2454         if (provider->driver == NULL)
2455                 return NULL;
2456
2457         return provider->driver->name;
2458 }
2459
2460 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2461 {
2462         return provider->identifier;
2463 }
2464
2465 static gint compare_priority(gconstpointer a, gconstpointer b)
2466 {
2467         return 0;
2468 }
2469
2470 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2471 {
2472         struct vpn_provider *provider = value;
2473
2474         if (provider->driver != NULL && provider->driver->remove)
2475                 provider->driver->remove(provider);
2476
2477         connection_unregister(provider);
2478 }
2479
2480 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2481 {
2482         DBG("driver %p name %s", driver, driver->name);
2483
2484         driver_list = g_slist_insert_sorted(driver_list, driver,
2485                                                         compare_priority);
2486         provider_create_all_from_type(driver->name);
2487         return 0;
2488 }
2489
2490 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2491 {
2492         GHashTableIter iter;
2493         gpointer value, key;
2494
2495         DBG("driver %p name %s", driver, driver->name);
2496
2497         driver_list = g_slist_remove(driver_list, driver);
2498
2499         g_hash_table_iter_init(&iter, provider_hash);
2500         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2501                 struct vpn_provider *provider = value;
2502
2503                 if (provider != NULL && provider->driver != NULL &&
2504                                 provider->driver->type == driver->type &&
2505                                 g_strcmp0(provider->driver->name,
2506                                                         driver->name) == 0) {
2507                         provider->driver = NULL;
2508                 }
2509         }
2510 }
2511
2512 const char *vpn_provider_get_name(struct vpn_provider *provider)
2513 {
2514         return provider->name;
2515 }
2516
2517 const char *vpn_provider_get_host(struct vpn_provider *provider)
2518 {
2519         return provider->host;
2520 }
2521
2522 const char *vpn_provider_get_path(struct vpn_provider *provider)
2523 {
2524         return provider->path;
2525 }
2526
2527 static int agent_probe(struct connman_agent *agent)
2528 {
2529         DBG("agent %p", agent);
2530         return 0;
2531 }
2532
2533 static void agent_remove(struct connman_agent *agent)
2534 {
2535         DBG("agent %p", agent);
2536 }
2537
2538 static struct connman_agent_driver agent_driver = {
2539         .name           = "vpn",
2540         .interface      = VPN_AGENT_INTERFACE,
2541         .probe          = agent_probe,
2542         .remove         = agent_remove,
2543 };
2544
2545 static void remove_unprovisioned_providers()
2546 {
2547         gchar **providers;
2548         GKeyFile *keyfile, *configkeyfile;
2549         char *file, *section;
2550         int i = 0;
2551
2552         providers = __connman_storage_get_providers();
2553         if (providers == NULL)
2554                 return;
2555
2556         for (; providers[i] != NULL; i++) {
2557                 char *group = providers[i] + sizeof("provider_") - 1;
2558                 file = section = NULL;
2559                 keyfile = configkeyfile = NULL;
2560
2561                 keyfile = __connman_storage_load_provider(group);
2562                 if (keyfile == NULL)
2563                         continue;
2564
2565                 file = g_key_file_get_string(keyfile, group,
2566                                         "Config.file", NULL);
2567                 if (file == NULL)
2568                         goto next;
2569
2570                 section = g_key_file_get_string(keyfile, group,
2571                                         "Config.ident", NULL);
2572                 if (section == NULL)
2573                         goto next;
2574
2575                 configkeyfile = __connman_storage_load_provider_config(file);
2576                 if (configkeyfile == NULL) {
2577                         /*
2578                          * Config file is missing, remove the provisioned
2579                          * service.
2580                          */
2581                         __connman_storage_remove_provider(group);
2582                         goto next;
2583                 }
2584
2585                 if (g_key_file_has_group(configkeyfile, section) == FALSE)
2586                         /*
2587                          * Config section is missing, remove the provisioned
2588                          * service.
2589                          */
2590                         __connman_storage_remove_provider(group);
2591
2592         next:
2593                 if (keyfile != NULL)
2594                         g_key_file_free(keyfile);
2595
2596                 if (configkeyfile != NULL)
2597                         g_key_file_free(configkeyfile);
2598
2599                 g_free(section);
2600                 g_free(file);
2601         }
2602
2603         g_strfreev(providers);
2604 }
2605
2606 int __vpn_provider_init(gboolean do_routes)
2607 {
2608         int err;
2609
2610         DBG("");
2611
2612         handle_routes = do_routes;
2613
2614         err = connman_agent_driver_register(&agent_driver);
2615         if (err < 0) {
2616                 connman_error("Cannot register agent driver for %s",
2617                                                 agent_driver.name);
2618                 return err;
2619         }
2620
2621         connection = connman_dbus_get_connection();
2622
2623         remove_unprovisioned_providers();
2624
2625         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2626                                                 NULL, unregister_provider);
2627         return 0;
2628 }
2629
2630 void __vpn_provider_cleanup(void)
2631 {
2632         DBG("");
2633
2634         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2635
2636         g_hash_table_destroy(provider_hash);
2637         provider_hash = NULL;
2638
2639         connman_agent_driver_unregister(&agent_driver);
2640
2641         dbus_connection_unref(connection);
2642 }