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 void append_nameservers(DBusMessageIter *iter, char **servers)
1238 {
1239         int i;
1240
1241         DBG("%p", servers);
1242
1243         for (i = 0; servers[i] != NULL; i++) {
1244                 DBG("servers[%d] %s", i, servers[i]);
1245                 dbus_message_iter_append_basic(iter,
1246                                         DBUS_TYPE_STRING, &servers[i]);
1247         }
1248 }
1249
1250 static void append_dns(DBusMessageIter *iter, void *user_data)
1251 {
1252         struct vpn_provider *provider = user_data;
1253
1254         if (provider->nameservers != NULL)
1255                 append_nameservers(iter, provider->nameservers);
1256 }
1257
1258 static int provider_indicate_state(struct vpn_provider *provider,
1259                                 enum vpn_provider_state state)
1260 {
1261         const char *str;
1262         enum vpn_provider_state old_state;
1263
1264         str = state2string(state);
1265         DBG("provider %p state %s/%d", provider, str, state);
1266         if (str == NULL)
1267                 return -EINVAL;
1268
1269         old_state = provider->state;
1270         provider->state = state;
1271
1272         if (state == VPN_PROVIDER_STATE_READY) {
1273                 connman_dbus_property_changed_basic(provider->path,
1274                                         VPN_CONNECTION_INTERFACE, "Index",
1275                                         DBUS_TYPE_INT32, &provider->index);
1276
1277                 if (provider->family == AF_INET)
1278                         connman_dbus_property_changed_dict(provider->path,
1279                                         VPN_CONNECTION_INTERFACE, "IPv4",
1280                                         append_ipv4, provider);
1281                 else if (provider->family == AF_INET6)
1282                         connman_dbus_property_changed_dict(provider->path,
1283                                         VPN_CONNECTION_INTERFACE, "IPv6",
1284                                         append_ipv6, provider);
1285
1286                 connman_dbus_property_changed_array(provider->path,
1287                                                 VPN_CONNECTION_INTERFACE,
1288                                                 "Nameservers",
1289                                                 DBUS_TYPE_STRING,
1290                                                 append_dns, provider);
1291         }
1292
1293         if (old_state != state)
1294                 connman_dbus_property_changed_basic(provider->path,
1295                                         VPN_CONNECTION_INTERFACE, "State",
1296                                         DBUS_TYPE_STRING, &str);
1297
1298         /*
1299          * We do not stay in failure state as clients like connmand can
1300          * get confused about our current state.
1301          */
1302         if (provider->state == VPN_PROVIDER_STATE_FAILURE)
1303                 provider->state = VPN_PROVIDER_STATE_IDLE;
1304
1305         return 0;
1306 }
1307
1308 static void append_state(DBusMessageIter *iter,
1309                                         struct vpn_provider *provider)
1310 {
1311         char *str;
1312
1313         switch (provider->state) {
1314         case VPN_PROVIDER_STATE_UNKNOWN:
1315         case VPN_PROVIDER_STATE_IDLE:
1316                 str = "idle";
1317                 break;
1318         case VPN_PROVIDER_STATE_CONNECT:
1319                 str = "configuration";
1320                 break;
1321         case VPN_PROVIDER_STATE_READY:
1322                 str = "ready";
1323                 break;
1324         case VPN_PROVIDER_STATE_DISCONNECT:
1325                 str = "disconnect";
1326                 break;
1327         case VPN_PROVIDER_STATE_FAILURE:
1328                 str = "failure";
1329                 break;
1330         }
1331
1332         connman_dbus_dict_append_basic(iter, "State",
1333                                 DBUS_TYPE_STRING, &str);
1334 }
1335
1336 static void append_properties(DBusMessageIter *iter,
1337                                         struct vpn_provider *provider)
1338 {
1339         DBusMessageIter dict;
1340         GHashTableIter hash;
1341         gpointer value, key;
1342
1343         connman_dbus_dict_open(iter, &dict);
1344
1345         append_state(&dict, provider);
1346
1347         if (provider->type != NULL)
1348                 connman_dbus_dict_append_basic(&dict, "Type",
1349                                         DBUS_TYPE_STRING, &provider->type);
1350
1351         if (provider->name != NULL)
1352                 connman_dbus_dict_append_basic(&dict, "Name",
1353                                         DBUS_TYPE_STRING, &provider->name);
1354
1355         if (provider->host != NULL)
1356                 connman_dbus_dict_append_basic(&dict, "Host",
1357                                         DBUS_TYPE_STRING, &provider->host);
1358         if (provider->index >= 0)
1359                 connman_dbus_dict_append_basic(&dict, "Index",
1360                                         DBUS_TYPE_INT32, &provider->index);
1361         if (provider->domain != NULL)
1362                 connman_dbus_dict_append_basic(&dict, "Domain",
1363                                         DBUS_TYPE_STRING, &provider->domain);
1364
1365         connman_dbus_dict_append_basic(&dict, "Immutable", DBUS_TYPE_BOOLEAN,
1366                                         &provider->immutable);
1367
1368         if (provider->family == AF_INET)
1369                 connman_dbus_dict_append_dict(&dict, "IPv4", append_ipv4,
1370                                                 provider);
1371         else if (provider->family == AF_INET6)
1372                 connman_dbus_dict_append_dict(&dict, "IPv6", append_ipv6,
1373                                                 provider);
1374
1375         connman_dbus_dict_append_array(&dict, "Nameservers",
1376                                 DBUS_TYPE_STRING, append_dns, provider);
1377
1378         connman_dbus_dict_append_array(&dict, "UserRoutes",
1379                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1380                                 provider->user_routes);
1381
1382         connman_dbus_dict_append_array(&dict, "ServerRoutes",
1383                                 DBUS_TYPE_DICT_ENTRY, append_routes,
1384                                 provider->routes);
1385
1386         if (provider->setting_strings != NULL) {
1387                 g_hash_table_iter_init(&hash, provider->setting_strings);
1388
1389                 while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
1390                         struct vpn_setting *setting = value;
1391
1392                         if (setting->hide_value == FALSE &&
1393                                                         setting->value != NULL)
1394                                 connman_dbus_dict_append_basic(&dict, key,
1395                                                         DBUS_TYPE_STRING,
1396                                                         &setting->value);
1397                 }
1398         }
1399
1400         connman_dbus_dict_close(iter, &dict);
1401 }
1402
1403 static void connection_added_signal(struct vpn_provider *provider)
1404 {
1405         DBusMessage *signal;
1406         DBusMessageIter iter;
1407
1408         signal = dbus_message_new_signal(VPN_MANAGER_PATH,
1409                         VPN_MANAGER_INTERFACE, "ConnectionAdded");
1410         if (signal == NULL)
1411                 return;
1412
1413         dbus_message_iter_init_append(signal, &iter);
1414         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
1415                                                         &provider->path);
1416         append_properties(&iter, provider);
1417
1418         dbus_connection_send(connection, signal, NULL);
1419         dbus_message_unref(signal);
1420 }
1421
1422 static connman_bool_t check_host(char **hosts, char *host)
1423 {
1424         int i;
1425
1426         if (hosts == NULL)
1427                 return FALSE;
1428
1429         for (i = 0; hosts[i] != NULL; i++) {
1430                 if (g_strcmp0(hosts[i], host) == 0)
1431                         return TRUE;
1432         }
1433
1434         return FALSE;
1435 }
1436
1437 static void provider_append_routes(gpointer key, gpointer value,
1438                                         gpointer user_data)
1439 {
1440         struct vpn_route *route = value;
1441         struct vpn_provider *provider = user_data;
1442         int index = provider->index;
1443
1444         if (handle_routes == FALSE)
1445                 return;
1446
1447         /*
1448          * If the VPN administrator/user has given a route to
1449          * VPN server, then we must discard that because the
1450          * server cannot be contacted via VPN tunnel.
1451          */
1452         if (check_host(provider->host_ip, route->network) == TRUE) {
1453                 DBG("Discarding VPN route to %s via %s at index %d",
1454                         route->network, route->gateway, index);
1455                 return;
1456         }
1457
1458         if (route->family == AF_INET6) {
1459                 unsigned char prefix_len = atoi(route->netmask);
1460
1461                 connman_inet_add_ipv6_network_route(index, route->network,
1462                                                         route->gateway,
1463                                                         prefix_len);
1464         } else {
1465                 connman_inet_add_network_route(index, route->network,
1466                                                 route->gateway,
1467                                                 route->netmask);
1468         }
1469 }
1470
1471 static int set_connected(struct vpn_provider *provider,
1472                                         connman_bool_t connected)
1473 {
1474         struct vpn_ipconfig *ipconfig;
1475
1476         DBG("provider %p id %s connected %d", provider,
1477                                         provider->identifier, connected);
1478
1479         if (connected == TRUE) {
1480                 if (provider->family == AF_INET6)
1481                         ipconfig = provider->ipconfig_ipv6;
1482                 else
1483                         ipconfig = provider->ipconfig_ipv4;
1484
1485                 __vpn_ipconfig_address_add(ipconfig, provider->family);
1486
1487                 if (handle_routes == TRUE)
1488                         __vpn_ipconfig_gateway_add(ipconfig, provider->family);
1489
1490                 provider_indicate_state(provider,
1491                                         VPN_PROVIDER_STATE_READY);
1492
1493                 g_hash_table_foreach(provider->routes, provider_append_routes,
1494                                         provider);
1495
1496                 g_hash_table_foreach(provider->user_routes,
1497                                         provider_append_routes, provider);
1498
1499         } else {
1500                 provider_indicate_state(provider,
1501                                         VPN_PROVIDER_STATE_DISCONNECT);
1502
1503                 provider_indicate_state(provider,
1504                                         VPN_PROVIDER_STATE_IDLE);
1505         }
1506
1507         return 0;
1508 }
1509
1510 int vpn_provider_set_state(struct vpn_provider *provider,
1511                                         enum vpn_provider_state state)
1512 {
1513         if (provider == NULL)
1514                 return -EINVAL;
1515
1516         switch (state) {
1517         case VPN_PROVIDER_STATE_UNKNOWN:
1518                 return -EINVAL;
1519         case VPN_PROVIDER_STATE_IDLE:
1520                 return set_connected(provider, FALSE);
1521         case VPN_PROVIDER_STATE_CONNECT:
1522                 return provider_indicate_state(provider, state);
1523         case VPN_PROVIDER_STATE_READY:
1524                 return set_connected(provider, TRUE);
1525         case VPN_PROVIDER_STATE_DISCONNECT:
1526                 return provider_indicate_state(provider, state);
1527         case VPN_PROVIDER_STATE_FAILURE:
1528                 return provider_indicate_state(provider, state);
1529         }
1530         return -EINVAL;
1531 }
1532
1533 int vpn_provider_indicate_error(struct vpn_provider *provider,
1534                                         enum vpn_provider_error error)
1535 {
1536         DBG("provider %p id %s error %d", provider, provider->identifier,
1537                                                                         error);
1538
1539         switch (error) {
1540         case VPN_PROVIDER_ERROR_LOGIN_FAILED:
1541                 break;
1542         case VPN_PROVIDER_ERROR_AUTH_FAILED:
1543                 vpn_provider_set_state(provider, VPN_PROVIDER_STATE_FAILURE);
1544                 break;
1545         case VPN_PROVIDER_ERROR_CONNECT_FAILED:
1546                 break;
1547         default:
1548                 break;
1549         }
1550
1551         return 0;
1552 }
1553
1554 static int connection_unregister(struct vpn_provider *provider)
1555 {
1556         DBG("provider %p path %s", provider, provider->path);
1557
1558         if (provider->path == NULL)
1559                 return -EALREADY;
1560
1561         g_dbus_unregister_interface(connection, provider->path,
1562                                 VPN_CONNECTION_INTERFACE);
1563
1564         g_free(provider->path);
1565         provider->path = NULL;
1566
1567         return 0;
1568 }
1569
1570 static int connection_register(struct vpn_provider *provider)
1571 {
1572         DBG("provider %p path %s", provider, provider->path);
1573
1574         if (provider->path != NULL)
1575                 return -EALREADY;
1576
1577         provider->path = g_strdup_printf("%s/connection/%s", VPN_PATH,
1578                                                 provider->identifier);
1579
1580         g_dbus_register_interface(connection, provider->path,
1581                                 VPN_CONNECTION_INTERFACE,
1582                                 connection_methods, connection_signals,
1583                                 NULL, provider, NULL);
1584
1585         return 0;
1586 }
1587
1588 static void unregister_provider(gpointer data)
1589 {
1590         struct vpn_provider *provider = data;
1591
1592         configuration_count_del();
1593
1594         connection_unregister(provider);
1595
1596         vpn_provider_unref(provider);
1597 }
1598
1599 static void provider_initialize(struct vpn_provider *provider)
1600 {
1601         DBG("provider %p", provider);
1602
1603         provider->index = 0;
1604         provider->fd = -1;
1605         provider->name = NULL;
1606         provider->type = NULL;
1607         provider->domain = NULL;
1608         provider->identifier = NULL;
1609         provider->immutable = FALSE;
1610         provider->user_networks = NULL;
1611         provider->routes = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1612                                         NULL, free_route);
1613         provider->user_routes = g_hash_table_new_full(g_str_hash, g_str_equal,
1614                                         g_free, free_route);
1615         provider->setting_strings = g_hash_table_new_full(g_str_hash,
1616                                         g_str_equal, g_free, free_setting);
1617 }
1618
1619 static struct vpn_provider *vpn_provider_new(void)
1620 {
1621         struct vpn_provider *provider;
1622
1623         provider = g_try_new0(struct vpn_provider, 1);
1624         if (provider == NULL)
1625                 return NULL;
1626
1627         provider->refcount = 1;
1628
1629         DBG("provider %p", provider);
1630         provider_initialize(provider);
1631
1632         return provider;
1633 }
1634
1635 static struct vpn_provider *vpn_provider_get(const char *identifier)
1636 {
1637         struct vpn_provider *provider;
1638
1639         provider = g_hash_table_lookup(provider_hash, identifier);
1640         if (provider != NULL)
1641                 return provider;
1642
1643         provider = vpn_provider_new();
1644         if (provider == NULL)
1645                 return NULL;
1646
1647         DBG("provider %p", provider);
1648
1649         provider->identifier = g_strdup(identifier);
1650
1651         g_hash_table_insert(provider_hash, provider->identifier, provider);
1652
1653         configuration_count_add();
1654
1655         return provider;
1656 }
1657
1658 static void provider_dbus_ident(char *ident)
1659 {
1660         int i, len = strlen(ident);
1661
1662         for (i = 0; i < len; i++) {
1663                 if (ident[i] >= '0' && ident[i] <= '9')
1664                         continue;
1665                 if (ident[i] >= 'a' && ident[i] <= 'z')
1666                         continue;
1667                 if (ident[i] >= 'A' && ident[i] <= 'Z')
1668                         continue;
1669                 ident[i] = '_';
1670         }
1671 }
1672
1673 static struct vpn_provider *provider_create_from_keyfile(GKeyFile *keyfile,
1674                 const char *ident)
1675 {
1676         struct vpn_provider *provider;
1677
1678         if (keyfile == NULL || ident == NULL)
1679                 return NULL;
1680
1681         provider = __vpn_provider_lookup(ident);
1682         if (provider == NULL) {
1683                 provider = vpn_provider_get(ident);
1684                 if (provider == NULL) {
1685                         DBG("can not create provider");
1686                         return NULL;
1687                 }
1688
1689                 provider_load_from_keyfile(provider, keyfile);
1690
1691                 if (provider->name == NULL || provider->host == NULL ||
1692                                 provider->domain == NULL) {
1693                         DBG("cannot get name, host or domain");
1694                         vpn_provider_unref(provider);
1695                         return NULL;
1696                 }
1697
1698                 if (provider_register(provider) == 0)
1699                         connection_register(provider);
1700         }
1701         return provider;
1702 }
1703
1704 static void provider_create_all_from_type(const char *provider_type)
1705 {
1706         unsigned int i;
1707         char **providers;
1708         char *id, *type;
1709         GKeyFile *keyfile;
1710
1711         DBG("provider type %s", provider_type);
1712
1713         providers = __connman_storage_get_providers();
1714
1715         if (providers == NULL)
1716                 return;
1717
1718         for (i = 0; providers[i] != NULL; i+=1) {
1719
1720                 if (strncmp(providers[i], "provider_", 9) != 0)
1721                         continue;
1722
1723                 id = providers[i] + 9;
1724                 keyfile = __connman_storage_load_provider(id);
1725
1726                 if (keyfile == NULL)
1727                         continue;
1728
1729                 type = g_key_file_get_string(keyfile, id, "Type", NULL);
1730
1731                 DBG("keyfile %p id %s type %s", keyfile, id, type);
1732
1733                 if (strcmp(provider_type, type) != 0) {
1734                         g_free(type);
1735                         g_key_file_free(keyfile);
1736                         continue;
1737                 }
1738
1739                 if (provider_create_from_keyfile(keyfile, id) == NULL)
1740                         DBG("could not create provider");
1741
1742                 g_free(type);
1743                 g_key_file_free(keyfile);
1744         }
1745         g_strfreev(providers);
1746 }
1747
1748 char *__vpn_provider_create_identifier(const char *host, const char *domain)
1749 {
1750         char *ident;
1751
1752         ident = g_strdup_printf("%s_%s", host, domain);
1753         if (ident == NULL)
1754                 return NULL;
1755
1756         provider_dbus_ident(ident);
1757
1758         return ident;
1759 }
1760
1761 int __vpn_provider_create(DBusMessage *msg)
1762 {
1763         struct vpn_provider *provider;
1764         DBusMessageIter iter, array;
1765         const char *type = NULL, *name = NULL;
1766         const char *host = NULL, *domain = NULL;
1767         GSList *networks = NULL;
1768         char *ident;
1769         int err;
1770
1771         dbus_message_iter_init(msg, &iter);
1772         dbus_message_iter_recurse(&iter, &array);
1773
1774         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1775                 DBusMessageIter entry, value;
1776                 const char *key;
1777
1778                 dbus_message_iter_recurse(&array, &entry);
1779                 dbus_message_iter_get_basic(&entry, &key);
1780
1781                 dbus_message_iter_next(&entry);
1782                 dbus_message_iter_recurse(&entry, &value);
1783
1784                 switch (dbus_message_iter_get_arg_type(&value)) {
1785                 case DBUS_TYPE_STRING:
1786                         if (g_str_equal(key, "Type") == TRUE)
1787                                 dbus_message_iter_get_basic(&value, &type);
1788                         else if (g_str_equal(key, "Name") == TRUE)
1789                                 dbus_message_iter_get_basic(&value, &name);
1790                         else if (g_str_equal(key, "Host") == TRUE)
1791                                 dbus_message_iter_get_basic(&value, &host);
1792                         else if (g_str_equal(key, "VPN.Domain") == TRUE ||
1793                                         g_str_equal(key, "Domain") == TRUE)
1794                                 dbus_message_iter_get_basic(&value, &domain);
1795                         break;
1796                 case DBUS_TYPE_ARRAY:
1797                         if (g_str_equal(key, "UserRoutes") == TRUE)
1798                                 networks = get_user_networks(&value);
1799                         break;
1800                 }
1801
1802                 dbus_message_iter_next(&array);
1803         }
1804
1805         if (host == NULL || domain == NULL)
1806                 return -EINVAL;
1807
1808         DBG("Type %s name %s networks %p", type, name, networks);
1809
1810         if (type == NULL || name == NULL)
1811                 return -EOPNOTSUPP;
1812
1813         ident = __vpn_provider_create_identifier(host, domain);
1814         DBG("ident %s", ident);
1815
1816         provider = __vpn_provider_lookup(ident);
1817         if (provider == NULL) {
1818                 provider = vpn_provider_get(ident);
1819                 if (provider == NULL) {
1820                         DBG("can not create provider");
1821                         g_free(ident);
1822                         return -EOPNOTSUPP;
1823                 }
1824
1825                 provider->host = g_strdup(host);
1826                 provider->domain = g_strdup(domain);
1827                 provider->name = g_strdup(name);
1828                 provider->type = g_strdup(type);
1829
1830                 if (provider_register(provider) == 0)
1831                         vpn_provider_load(provider);
1832
1833                 provider_resolv_host_addr(provider);
1834         }
1835
1836         if (networks != NULL) {
1837                 g_slist_free_full(provider->user_networks, free_route);
1838                 provider->user_networks = networks;
1839                 set_user_networks(provider, provider->user_networks);
1840         }
1841
1842         dbus_message_iter_init(msg, &iter);
1843         dbus_message_iter_recurse(&iter, &array);
1844
1845         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
1846                 DBusMessageIter entry, value;
1847                 const char *key, *str;
1848
1849                 dbus_message_iter_recurse(&array, &entry);
1850                 dbus_message_iter_get_basic(&entry, &key);
1851
1852                 dbus_message_iter_next(&entry);
1853                 dbus_message_iter_recurse(&entry, &value);
1854
1855                 switch (dbus_message_iter_get_arg_type(&value)) {
1856                 case DBUS_TYPE_STRING:
1857                         dbus_message_iter_get_basic(&value, &str);
1858                         vpn_provider_set_string(provider, key, str);
1859                         break;
1860                 }
1861
1862                 dbus_message_iter_next(&array);
1863         }
1864
1865         g_free(ident);
1866
1867         vpn_provider_save(provider);
1868
1869         err = provider_register(provider);
1870         if (err != 0 && err != -EALREADY)
1871                 return err;
1872
1873         connection_register(provider);
1874
1875         DBG("provider %p index %d path %s", provider, provider->index,
1876                                                         provider->path);
1877
1878         g_dbus_send_reply(connection, msg,
1879                                 DBUS_TYPE_OBJECT_PATH, &provider->path,
1880                                 DBUS_TYPE_INVALID);
1881
1882         connection_added_signal(provider);
1883
1884         return 0;
1885 }
1886
1887 static const char *get_string(GHashTable *settings, const char *key)
1888 {
1889         DBG("settings %p key %s", settings, key);
1890
1891         return g_hash_table_lookup(settings, key);
1892 }
1893
1894 static GSList *parse_user_networks(const char *network_str)
1895 {
1896         GSList *networks = NULL;
1897         char **elems;
1898         int i = 0;
1899
1900         if (network_str == NULL)
1901                 return NULL;
1902
1903         elems = g_strsplit(network_str, ",", 0);
1904         if (elems == NULL)
1905                 return NULL;
1906
1907         while (elems[i] != NULL) {
1908                 struct vpn_route *vpn_route;
1909                 char *network, *netmask, *gateway;
1910                 int family;
1911                 char **route;
1912
1913                 route = g_strsplit(elems[i], "/", 0);
1914                 if (route == NULL)
1915                         goto next;
1916
1917                 network = route[0];
1918                 if (network == NULL || network[0] == '\0')
1919                         goto next;
1920
1921                 family = connman_inet_check_ipaddress(network);
1922                 if (family < 0) {
1923                         DBG("Cannot get address family of %s (%d/%s)", network,
1924                                 family, gai_strerror(family));
1925
1926                         goto next;
1927                 }
1928
1929                 switch (family) {
1930                 case AF_INET:
1931                         break;
1932                 case AF_INET6:
1933                         break;
1934                 default:
1935                         DBG("Unsupported address family %d", family);
1936                         goto next;
1937                 }
1938
1939                 netmask = route[1];
1940                 if (netmask == NULL || netmask[0] == '\0')
1941                         goto next;
1942
1943                 gateway = route[2];
1944
1945                 vpn_route = g_try_new0(struct vpn_route, 1);
1946                 if (vpn_route == NULL) {
1947                         g_strfreev(route);
1948                         break;
1949                 }
1950
1951                 vpn_route->family = family;
1952                 vpn_route->network = g_strdup(network);
1953                 vpn_route->netmask = g_strdup(netmask);
1954                 vpn_route->gateway = g_strdup(gateway);
1955
1956                 DBG("route %s/%s%s%s", network, netmask,
1957                         gateway ? " via " : "", gateway ? gateway : "");
1958
1959                 networks = g_slist_prepend(networks, vpn_route);
1960
1961         next:
1962                 g_strfreev(route);
1963                 i++;
1964         }
1965
1966         g_strfreev(elems);
1967
1968         return g_slist_reverse(networks);
1969 }
1970
1971 int __vpn_provider_create_from_config(GHashTable *settings,
1972                                 const char *config_ident,
1973                                 const char *config_entry)
1974 {
1975         struct vpn_provider *provider;
1976         const char *type, *name, *host, *domain, *networks_str;
1977         GSList *networks;
1978         char *ident = NULL;
1979         GHashTableIter hash;
1980         gpointer value, key;
1981         int err;
1982
1983         type = get_string(settings, "Type");
1984         name = get_string(settings, "Name");
1985         host = get_string(settings, "Host");
1986         domain = get_string(settings, "Domain");
1987         networks_str = get_string(settings, "Networks");
1988         networks = parse_user_networks(networks_str);
1989
1990         if (host == NULL || domain == NULL) {
1991                 err = -EINVAL;
1992                 goto fail;
1993         }
1994
1995         DBG("type %s name %s networks %s", type, name, networks_str);
1996
1997         if (type == NULL || name == NULL) {
1998                 err = -EOPNOTSUPP;
1999                 goto fail;
2000         }
2001
2002         ident = __vpn_provider_create_identifier(host, domain);
2003         DBG("ident %s", ident);
2004
2005         provider = __vpn_provider_lookup(ident);
2006         if (provider == NULL) {
2007                 provider = vpn_provider_get(ident);
2008                 if (provider == NULL) {
2009                         DBG("can not create provider");
2010                         err = -EOPNOTSUPP;
2011                         goto fail;
2012                 }
2013
2014                 provider->host = g_strdup(host);
2015                 provider->domain = g_strdup(domain);
2016                 provider->name = g_strdup(name);
2017                 provider->type = g_ascii_strdown(type, -1);
2018
2019                 provider->config_file = g_strdup(config_ident);
2020                 provider->config_entry = g_strdup(config_entry);
2021
2022                 provider_register(provider);
2023
2024                 provider_resolv_host_addr(provider);
2025         }
2026
2027         if (networks != NULL) {
2028                 g_slist_free_full(provider->user_networks, free_route);
2029                 provider->user_networks = networks;
2030                 set_user_networks(provider, provider->user_networks);
2031         }
2032
2033         g_hash_table_iter_init(&hash, settings);
2034
2035         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE)
2036                 __vpn_provider_set_string_immutable(provider, key, value);
2037
2038         provider->immutable = TRUE;
2039
2040         vpn_provider_save(provider);
2041
2042         err = provider_register(provider);
2043         if (err != 0 && err != -EALREADY)
2044                 goto fail;
2045
2046         connection_register(provider);
2047
2048         DBG("provider %p index %d path %s", provider, provider->index,
2049                                                         provider->path);
2050
2051         connection_added_signal(provider);
2052
2053         g_free(ident);
2054
2055         return 0;
2056
2057 fail:
2058         g_free(ident);
2059         g_slist_free_full(networks, free_route);
2060
2061         return err;
2062 }
2063
2064 static void append_connection_structs(DBusMessageIter *iter, void *user_data)
2065 {
2066         DBusMessageIter entry;
2067         GHashTableIter hash;
2068         gpointer value, key;
2069
2070         g_hash_table_iter_init(&hash, provider_hash);
2071
2072         while (g_hash_table_iter_next(&hash, &key, &value) == TRUE) {
2073                 struct vpn_provider *provider = value;
2074
2075                 DBG("path %s", provider->path);
2076
2077                 if (provider->identifier == NULL)
2078                         continue;
2079
2080                 dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
2081                                 NULL, &entry);
2082                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
2083                                 &provider->path);
2084                 append_properties(&entry, provider);
2085                 dbus_message_iter_close_container(iter, &entry);
2086         }
2087 }
2088
2089 DBusMessage *__vpn_provider_get_connections(DBusMessage *msg)
2090 {
2091         DBusMessage *reply;
2092
2093         DBG("");
2094
2095         reply = dbus_message_new_method_return(msg);
2096         if (reply == NULL)
2097                 return NULL;
2098
2099         __connman_dbus_append_objpath_dict_array(reply,
2100                         append_connection_structs, NULL);
2101
2102         return reply;
2103 }
2104
2105 const char * __vpn_provider_get_ident(struct vpn_provider *provider)
2106 {
2107         if (provider == NULL)
2108                 return NULL;
2109
2110         return provider->identifier;
2111 }
2112
2113 static int set_string(struct vpn_provider *provider,
2114                         const char *key, const char *value,
2115                         gboolean hide_value, gboolean immutable)
2116 {
2117         DBG("provider %p key %s immutable %s value %s", provider, key,
2118                 immutable ? "yes" : "no",
2119                 hide_value ? "<not printed>" : value);
2120
2121         if (g_str_equal(key, "Type") == TRUE) {
2122                 g_free(provider->type);
2123                 provider->type = g_ascii_strdown(value, -1);
2124                 send_value(provider->path, "Type", provider->type);
2125         } else if (g_str_equal(key, "Name") == TRUE) {
2126                 g_free(provider->name);
2127                 provider->name = g_strdup(value);
2128                 send_value(provider->path, "Name", provider->name);
2129         } else if (g_str_equal(key, "Host") == TRUE) {
2130                 g_free(provider->host);
2131                 provider->host = g_strdup(value);
2132                 send_value(provider->path, "Host", provider->host);
2133         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2134                         g_str_equal(key, "Domain") == TRUE) {
2135                 g_free(provider->domain);
2136                 provider->domain = g_strdup(value);
2137                 send_value(provider->path, "Domain", provider->domain);
2138         } else {
2139                 struct vpn_setting *setting;
2140
2141                 setting = g_hash_table_lookup(provider->setting_strings, key);
2142                 if (setting != NULL && immutable == FALSE &&
2143                                                 setting->immutable == TRUE) {
2144                         DBG("Trying to set immutable variable %s", key);
2145                         return -EPERM;
2146                 }
2147
2148                 setting = g_try_new0(struct vpn_setting, 1);
2149                 if (setting == NULL)
2150                         return -ENOMEM;
2151
2152                 setting->value = g_strdup(value);
2153                 setting->hide_value = hide_value;
2154
2155                 if (immutable == TRUE)
2156                         setting->immutable = TRUE;
2157
2158                 if (hide_value == FALSE)
2159                         send_value(provider->path, key, setting->value);
2160
2161                 g_hash_table_replace(provider->setting_strings,
2162                                 g_strdup(key), setting);
2163         }
2164
2165         return 0;
2166 }
2167
2168 int vpn_provider_set_string(struct vpn_provider *provider,
2169                                         const char *key, const char *value)
2170 {
2171         return set_string(provider, key, value, FALSE, FALSE);
2172 }
2173
2174 int vpn_provider_set_string_hide_value(struct vpn_provider *provider,
2175                                         const char *key, const char *value)
2176 {
2177         return set_string(provider, key, value, TRUE, FALSE);
2178 }
2179
2180 int __vpn_provider_set_string_immutable(struct vpn_provider *provider,
2181                                         const char *key, const char *value)
2182 {
2183         return set_string(provider, key, value, FALSE, TRUE);
2184 }
2185
2186 const char *vpn_provider_get_string(struct vpn_provider *provider,
2187                                                         const char *key)
2188 {
2189         struct vpn_setting *setting;
2190
2191         DBG("provider %p key %s", provider, key);
2192
2193         if (g_str_equal(key, "Type") == TRUE)
2194                 return provider->type;
2195         else if (g_str_equal(key, "Name") == TRUE)
2196                 return provider->name;
2197         else if (g_str_equal(key, "Host") == TRUE)
2198                 return provider->host;
2199         else if (g_str_equal(key, "HostIP") == TRUE) {
2200                 if (provider->host_ip == NULL ||
2201                                 provider->host_ip[0] == NULL)
2202                         return provider->host;
2203                 else
2204                         return provider->host_ip[0];
2205         } else if (g_str_equal(key, "VPN.Domain") == TRUE ||
2206                         g_str_equal(key, "Domain") == TRUE)
2207                 return provider->domain;
2208
2209         setting = g_hash_table_lookup(provider->setting_strings, key);
2210         if (setting == NULL)
2211                 return NULL;
2212
2213         return setting->value;
2214 }
2215
2216 connman_bool_t __vpn_provider_check_routes(struct vpn_provider *provider)
2217 {
2218         if (provider == NULL)
2219                 return FALSE;
2220
2221         if (provider->user_routes != NULL &&
2222                         g_hash_table_size(provider->user_routes) > 0)
2223                 return TRUE;
2224
2225         if (provider->routes != NULL &&
2226                         g_hash_table_size(provider->routes) > 0)
2227                 return TRUE;
2228
2229         return FALSE;
2230 }
2231
2232 void *vpn_provider_get_data(struct vpn_provider *provider)
2233 {
2234         return provider->driver_data;
2235 }
2236
2237 void vpn_provider_set_data(struct vpn_provider *provider, void *data)
2238 {
2239         provider->driver_data = data;
2240 }
2241
2242 void vpn_provider_set_index(struct vpn_provider *provider, int index)
2243 {
2244         DBG("index %d provider %p", index, provider);
2245
2246         if (provider->ipconfig_ipv4 == NULL) {
2247                 provider->ipconfig_ipv4 = __vpn_ipconfig_create(index,
2248                                                                 AF_INET);
2249                 if (provider->ipconfig_ipv4 == NULL) {
2250                         DBG("Couldnt create ipconfig for IPv4");
2251                         goto done;
2252                 }
2253         }
2254
2255         __vpn_ipconfig_set_index(provider->ipconfig_ipv4, index);
2256
2257         if (provider->ipconfig_ipv6 == NULL) {
2258                 provider->ipconfig_ipv6 = __vpn_ipconfig_create(index,
2259                                                                 AF_INET6);
2260                 if (provider->ipconfig_ipv6 == NULL) {
2261                         DBG("Couldnt create ipconfig for IPv6");
2262                         goto done;
2263                 }
2264         }
2265
2266         __vpn_ipconfig_set_index(provider->ipconfig_ipv6, index);
2267
2268 done:
2269         provider->index = index;
2270 }
2271
2272 int vpn_provider_get_index(struct vpn_provider *provider)
2273 {
2274         return provider->index;
2275 }
2276
2277 int vpn_provider_set_ipaddress(struct vpn_provider *provider,
2278                                         struct connman_ipaddress *ipaddress)
2279 {
2280         struct vpn_ipconfig *ipconfig = NULL;
2281
2282         switch (ipaddress->family) {
2283         case AF_INET:
2284                 ipconfig = provider->ipconfig_ipv4;
2285                 break;
2286         case AF_INET6:
2287                 ipconfig = provider->ipconfig_ipv6;
2288                 break;
2289         default:
2290                 break;
2291         }
2292
2293         DBG("provider %p ipconfig %p family %d", provider, ipconfig,
2294                                                         ipaddress->family);
2295
2296         if (ipconfig == NULL)
2297                 return -EINVAL;
2298
2299         provider->family = ipaddress->family;
2300
2301         __vpn_ipconfig_set_local(ipconfig, ipaddress->local);
2302         __vpn_ipconfig_set_peer(ipconfig, ipaddress->peer);
2303         __vpn_ipconfig_set_broadcast(ipconfig, ipaddress->broadcast);
2304         __vpn_ipconfig_set_gateway(ipconfig, ipaddress->gateway);
2305         __vpn_ipconfig_set_prefixlen(ipconfig, ipaddress->prefixlen);
2306
2307         return 0;
2308 }
2309
2310 int vpn_provider_set_pac(struct vpn_provider *provider,
2311                                 const char *pac)
2312 {
2313         DBG("provider %p pac %s", provider, pac);
2314
2315         return 0;
2316 }
2317
2318
2319 int vpn_provider_set_domain(struct vpn_provider *provider,
2320                                         const char *domain)
2321 {
2322         DBG("provider %p domain %s", provider, domain);
2323
2324         g_free(provider->domain);
2325         provider->domain = g_strdup(domain);
2326
2327         return 0;
2328 }
2329
2330 int vpn_provider_set_nameservers(struct vpn_provider *provider,
2331                                         const char *nameservers)
2332 {
2333         DBG("provider %p nameservers %s", provider, nameservers);
2334
2335         g_strfreev(provider->nameservers);
2336         provider->nameservers = NULL;
2337
2338         if (nameservers == NULL)
2339                 return 0;
2340
2341         provider->nameservers = g_strsplit(nameservers, " ", 0);
2342
2343         return 0;
2344 }
2345
2346 enum provider_route_type {
2347         PROVIDER_ROUTE_TYPE_NONE = 0,
2348         PROVIDER_ROUTE_TYPE_MASK = 1,
2349         PROVIDER_ROUTE_TYPE_ADDR = 2,
2350         PROVIDER_ROUTE_TYPE_GW   = 3,
2351 };
2352
2353 static int route_env_parse(struct vpn_provider *provider, const char *key,
2354                                 int *family, unsigned long *idx,
2355                                 enum provider_route_type *type)
2356 {
2357         char *end;
2358         const char *start;
2359
2360         DBG("name %s", provider->name);
2361
2362         if (!strcmp(provider->type, "openvpn")) {
2363                 if (g_str_has_prefix(key, "route_network_") == TRUE) {
2364                         start = key + strlen("route_network_");
2365                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2366                 } else if (g_str_has_prefix(key, "route_netmask_") == TRUE) {
2367                         start = key + strlen("route_netmask_");
2368                         *type = PROVIDER_ROUTE_TYPE_MASK;
2369                 } else if (g_str_has_prefix(key, "route_gateway_") == TRUE) {
2370                         start = key + strlen("route_gateway_");
2371                         *type = PROVIDER_ROUTE_TYPE_GW;
2372                 } else
2373                         return -EINVAL;
2374
2375                 *family = AF_INET;
2376                 *idx = g_ascii_strtoull(start, &end, 10);
2377
2378         } else if (!strcmp(provider->type, "openconnect")) {
2379                 if (g_str_has_prefix(key, "CISCO_SPLIT_INC_") == TRUE) {
2380                         *family = AF_INET;
2381                         start = key + strlen("CISCO_SPLIT_INC_");
2382                 } else if (g_str_has_prefix(key,
2383                                         "CISCO_IPV6_SPLIT_INC_") == TRUE) {
2384                         *family = AF_INET6;
2385                         start = key + strlen("CISCO_IPV6_SPLIT_INC_");
2386                 } else
2387                         return -EINVAL;
2388
2389                 *idx = g_ascii_strtoull(start, &end, 10);
2390
2391                 if (strncmp(end, "_ADDR", 5) == 0)
2392                         *type = PROVIDER_ROUTE_TYPE_ADDR;
2393                 else if (strncmp(end, "_MASK", 5) == 0)
2394                         *type = PROVIDER_ROUTE_TYPE_MASK;
2395                 else if (strncmp(end, "_MASKLEN", 8) == 0 &&
2396                                 *family == AF_INET6) {
2397                         *type = PROVIDER_ROUTE_TYPE_MASK;
2398                 } else
2399                         return -EINVAL;
2400         }
2401
2402         return 0;
2403 }
2404
2405 int vpn_provider_append_route(struct vpn_provider *provider,
2406                                         const char *key, const char *value)
2407 {
2408         struct vpn_route *route;
2409         int ret, family = 0;
2410         unsigned long idx = 0;
2411         enum provider_route_type type = PROVIDER_ROUTE_TYPE_NONE;
2412
2413         DBG("key %s value %s", key, value);
2414
2415         ret = route_env_parse(provider, key, &family, &idx, &type);
2416         if (ret < 0)
2417                 return ret;
2418
2419         DBG("idx %lu family %d type %d", idx, family, type);
2420
2421         route = g_hash_table_lookup(provider->routes, GINT_TO_POINTER(idx));
2422         if (route == NULL) {
2423                 route = g_try_new0(struct vpn_route, 1);
2424                 if (route == NULL) {
2425                         connman_error("out of memory");
2426                         return -ENOMEM;
2427                 }
2428
2429                 route->family = family;
2430
2431                 g_hash_table_replace(provider->routes, GINT_TO_POINTER(idx),
2432                                                 route);
2433         }
2434
2435         switch (type) {
2436         case PROVIDER_ROUTE_TYPE_NONE:
2437                 break;
2438         case PROVIDER_ROUTE_TYPE_MASK:
2439                 route->netmask = g_strdup(value);
2440                 break;
2441         case PROVIDER_ROUTE_TYPE_ADDR:
2442                 route->network = g_strdup(value);
2443                 break;
2444         case PROVIDER_ROUTE_TYPE_GW:
2445                 route->gateway = g_strdup(value);
2446                 break;
2447         }
2448
2449         if (handle_routes == FALSE) {
2450                 if (route->netmask != NULL && route->gateway != NULL &&
2451                                                         route->network != NULL)
2452                         provider_schedule_changed(provider);
2453         }
2454
2455         return 0;
2456 }
2457
2458 const char *vpn_provider_get_driver_name(struct vpn_provider *provider)
2459 {
2460         if (provider->driver == NULL)
2461                 return NULL;
2462
2463         return provider->driver->name;
2464 }
2465
2466 const char *vpn_provider_get_save_group(struct vpn_provider *provider)
2467 {
2468         return provider->identifier;
2469 }
2470
2471 static gint compare_priority(gconstpointer a, gconstpointer b)
2472 {
2473         return 0;
2474 }
2475
2476 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
2477 {
2478         struct vpn_provider *provider = value;
2479
2480         if (provider->driver != NULL && provider->driver->remove)
2481                 provider->driver->remove(provider);
2482
2483         connection_unregister(provider);
2484 }
2485
2486 int vpn_provider_driver_register(struct vpn_provider_driver *driver)
2487 {
2488         DBG("driver %p name %s", driver, driver->name);
2489
2490         driver_list = g_slist_insert_sorted(driver_list, driver,
2491                                                         compare_priority);
2492         provider_create_all_from_type(driver->name);
2493         return 0;
2494 }
2495
2496 void vpn_provider_driver_unregister(struct vpn_provider_driver *driver)
2497 {
2498         GHashTableIter iter;
2499         gpointer value, key;
2500
2501         DBG("driver %p name %s", driver, driver->name);
2502
2503         driver_list = g_slist_remove(driver_list, driver);
2504
2505         g_hash_table_iter_init(&iter, provider_hash);
2506         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
2507                 struct vpn_provider *provider = value;
2508
2509                 if (provider != NULL && provider->driver != NULL &&
2510                                 provider->driver->type == driver->type &&
2511                                 g_strcmp0(provider->driver->name,
2512                                                         driver->name) == 0) {
2513                         provider->driver = NULL;
2514                 }
2515         }
2516 }
2517
2518 const char *vpn_provider_get_name(struct vpn_provider *provider)
2519 {
2520         return provider->name;
2521 }
2522
2523 const char *vpn_provider_get_host(struct vpn_provider *provider)
2524 {
2525         return provider->host;
2526 }
2527
2528 const char *vpn_provider_get_path(struct vpn_provider *provider)
2529 {
2530         return provider->path;
2531 }
2532
2533 static int agent_probe(struct connman_agent *agent)
2534 {
2535         DBG("agent %p", agent);
2536         return 0;
2537 }
2538
2539 static void agent_remove(struct connman_agent *agent)
2540 {
2541         DBG("agent %p", agent);
2542 }
2543
2544 static struct connman_agent_driver agent_driver = {
2545         .name           = "vpn",
2546         .interface      = VPN_AGENT_INTERFACE,
2547         .probe          = agent_probe,
2548         .remove         = agent_remove,
2549 };
2550
2551 static void remove_unprovisioned_providers()
2552 {
2553         gchar **providers;
2554         GKeyFile *keyfile, *configkeyfile;
2555         char *file, *section;
2556         int i = 0;
2557
2558         providers = __connman_storage_get_providers();
2559         if (providers == NULL)
2560                 return;
2561
2562         for (; providers[i] != NULL; i++) {
2563                 char *group = providers[i] + sizeof("provider_") - 1;
2564                 file = section = NULL;
2565                 keyfile = configkeyfile = NULL;
2566
2567                 keyfile = __connman_storage_load_provider(group);
2568                 if (keyfile == NULL)
2569                         continue;
2570
2571                 file = g_key_file_get_string(keyfile, group,
2572                                         "Config.file", NULL);
2573                 if (file == NULL)
2574                         goto next;
2575
2576                 section = g_key_file_get_string(keyfile, group,
2577                                         "Config.ident", NULL);
2578                 if (section == NULL)
2579                         goto next;
2580
2581                 configkeyfile = __connman_storage_load_provider_config(file);
2582                 if (configkeyfile == NULL) {
2583                         /*
2584                          * Config file is missing, remove the provisioned
2585                          * service.
2586                          */
2587                         __connman_storage_remove_provider(group);
2588                         goto next;
2589                 }
2590
2591                 if (g_key_file_has_group(configkeyfile, section) == FALSE)
2592                         /*
2593                          * Config section is missing, remove the provisioned
2594                          * service.
2595                          */
2596                         __connman_storage_remove_provider(group);
2597
2598         next:
2599                 if (keyfile != NULL)
2600                         g_key_file_free(keyfile);
2601
2602                 if (configkeyfile != NULL)
2603                         g_key_file_free(configkeyfile);
2604
2605                 g_free(section);
2606                 g_free(file);
2607         }
2608
2609         g_strfreev(providers);
2610 }
2611
2612 int __vpn_provider_init(gboolean do_routes)
2613 {
2614         int err;
2615
2616         DBG("");
2617
2618         handle_routes = do_routes;
2619
2620         err = connman_agent_driver_register(&agent_driver);
2621         if (err < 0) {
2622                 connman_error("Cannot register agent driver for %s",
2623                                                 agent_driver.name);
2624                 return err;
2625         }
2626
2627         connection = connman_dbus_get_connection();
2628
2629         remove_unprovisioned_providers();
2630
2631         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
2632                                                 NULL, unregister_provider);
2633         return 0;
2634 }
2635
2636 void __vpn_provider_cleanup(void)
2637 {
2638         DBG("");
2639
2640         g_hash_table_foreach(provider_hash, clean_provider, NULL);
2641
2642         g_hash_table_destroy(provider_hash);
2643         provider_hash = NULL;
2644
2645         connman_agent_driver_unregister(&agent_driver);
2646
2647         dbus_connection_unref(connection);
2648 }