src/connection.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *  Copyright (C) 2011  BMW Car IT GmbH. All rights reserved.
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20  *
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <errno.h>
  28 #include <string.h>
  29 #include <net/if.h>
  30
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 struct gateway_config {
  36         gboolean active;
  37         char *gateway;
  38
  39         /* VPN extra data */
  40         gboolean vpn;
  41         char *vpn_ip;
  42         int vpn_phy_index;
  43         char *vpn_phy_ip;
  44 };
  45
  46 struct gateway_data {
  47         int index;
  48         struct connman_service *service;
  49         unsigned int order;
  50         struct gateway_config *ipv4_gateway;
  51         struct gateway_config *ipv6_gateway;
  52 };
  53
  54 static GHashTable *gateway_hash = NULL;
  55
  56 static struct gateway_config *find_gateway(int index, const char *gateway)
  57 {
  58         GHashTableIter iter;
  59         gpointer value, key;
  60
  61         if (gateway == NULL)
  62                 return NULL;
  63
  64         g_hash_table_iter_init(&iter, gateway_hash);
  65
  66         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
  67                 struct gateway_data *data = value;
  68
  69                 if (data->ipv4_gateway != NULL && data->index == index &&
  70                                 g_str_equal(data->ipv4_gateway->gateway,
  71                                         gateway) == TRUE)
  72                         return data->ipv4_gateway;
  73
  74                 if (data->ipv6_gateway != NULL && data->index == index &&
  75                                 g_str_equal(data->ipv6_gateway->gateway,
  76                                         gateway) == TRUE)
  77                         return data->ipv6_gateway;
  78         }
  79
  80         return NULL;
  81 }
  82
  83 static int del_routes(struct gateway_data *data,
  84                         enum connman_ipconfig_type type)
  85 {
  86         int status4 = 0, status6 = 0;
  87         int do_ipv4 = FALSE, do_ipv6 = FALSE;
  88
  89         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
  90                 do_ipv4 = TRUE;
  91         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
  92                 do_ipv6 = TRUE;
  93         else
  94                 do_ipv4 = do_ipv6 = TRUE;
  95
  96         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL) {
  97                 if (data->ipv4_gateway->vpn == TRUE) {
  98                         if (data->ipv4_gateway->vpn_phy_index >= 0)
  99                                 connman_inet_del_host_route(
 100                                         data->ipv4_gateway->vpn_phy_index,
 101                                         data->ipv4_gateway->gateway);
 102
 103                         status4 = connman_inet_clear_gateway_address(
 104                                                 data->index,
 105                                                 data->ipv4_gateway->vpn_ip);
 106
 107                 } else if (g_strcmp0(data->ipv4_gateway->gateway,
 108                                                         "0.0.0.0") == 0) {
 109                         status4 = connman_inet_clear_gateway_interface(
 110                                                                 data->index);
 111                 } else {
 112                         connman_inet_del_host_route(data->index,
 113                                                 data->ipv4_gateway->gateway);
 114                         status4 = connman_inet_clear_gateway_address(
 115                                                 data->index,
 116                                                 data->ipv4_gateway->gateway);
 117                 }
 118         }
 119
 120         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL) {
 121                 if (data->ipv6_gateway->vpn == TRUE) {
 122                         if (data->ipv6_gateway->vpn_phy_index >= 0)
 123                                 connman_inet_del_host_route(
 124                                         data->ipv6_gateway->vpn_phy_index,
 125                                         data->ipv6_gateway->gateway);
 126
 127                         status6 = connman_inet_clear_ipv6_gateway_address(
 128                                                 data->index,
 129                                                 data->ipv6_gateway->vpn_ip);
 130
 131                 } else if (g_strcmp0(data->ipv6_gateway->gateway, "::") == 0) {
 132                         status6 = connman_inet_clear_ipv6_gateway_interface(
 133                                                                 data->index);
 134                 } else {
 135                         connman_inet_del_ipv6_host_route(data->index,
 136                                                 data->ipv6_gateway->gateway);
 137                         status6 = connman_inet_clear_ipv6_gateway_address(
 138                                                 data->index,
 139                                                 data->ipv6_gateway->gateway);
 140                 }
 141         }
 142
 143         return (status4 < 0 ? status4 : status6);
 144 }
 145
 146 static int disable_gateway(struct gateway_data *data,
 147                         enum connman_ipconfig_type type)
 148 {
 149         gboolean active = FALSE;
 150
 151         if (type == CONNMAN_IPCONFIG_TYPE_IPV4) {
 152                 if (data->ipv4_gateway != NULL)
 153                         active = data->ipv4_gateway->active;
 154         } else if (type == CONNMAN_IPCONFIG_TYPE_IPV6) {
 155                 if (data->ipv6_gateway != NULL)
 156                         active = data->ipv6_gateway->active;
 157         } else
 158                 active = TRUE;
 159
 160         DBG("type %d active %d", type, active);
 161
 162         if (active == TRUE)
 163                 return del_routes(data, type);
 164
 165         return 0;
 166 }
 167
 168 static struct gateway_data *add_gateway(struct connman_service *service,
 169                                         int index, const char *gateway,
 170                                         enum connman_ipconfig_type type)
 171 {
 172         struct gateway_data *data, *old;
 173         struct gateway_config *config;
 174
 175         if (gateway == NULL || strlen(gateway) == 0)
 176                 return NULL;
 177
 178         data = g_try_new0(struct gateway_data, 1);
 179         if (data == NULL)
 180                 return NULL;
 181
 182         data->index = index;
 183
 184         config = g_try_new0(struct gateway_config, 1);
 185         if (config == NULL) {
 186                 g_free(data);
 187                 return NULL;
 188         }
 189
 190         config->gateway = g_strdup(gateway);
 191         config->vpn_ip = NULL;
 192         config->vpn_phy_ip = NULL;
 193         config->vpn = FALSE;
 194         config->vpn_phy_index = -1;
 195         config->active = FALSE;
 196
 197         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 198                 data->ipv4_gateway = config;
 199         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 200                 data->ipv6_gateway = config;
 201         else {
 202                 g_free(config->gateway);
 203                 g_free(config);
 204                 g_free(data);
 205                 return NULL;
 206         }
 207
 208         data->service = service;
 209
 210         data->order = __connman_service_get_order(service);
 211
 212         /*
 213          * If the service is already in the hash, then we
 214          * must not replace it blindly but disable the gateway
 215          * of the type we are replacing and take the other type
 216          * from old gateway settings.
 217          */
 218         old = g_hash_table_lookup(gateway_hash, service);
 219         if (old != NULL) {
 220                 DBG("Replacing gw %p ipv4 %p ipv6 %p", old,
 221                         old->ipv4_gateway, old->ipv6_gateway);
 222                 disable_gateway(old, type);
 223                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4) {
 224                         data->ipv6_gateway = old->ipv6_gateway;
 225                         old->ipv6_gateway = NULL;
 226                 } else if (type == CONNMAN_IPCONFIG_TYPE_IPV6) {
 227                         data->ipv4_gateway = old->ipv4_gateway;
 228                         old->ipv4_gateway = NULL;
 229                 }
 230         }
 231
 232         g_hash_table_replace(gateway_hash, service, data);
 233
 234         return data;
 235 }
 236
 237 static void connection_newgateway(int index, const char *gateway)
 238 {
 239         struct gateway_config *config;
 240
 241         DBG("index %d gateway %s", index, gateway);
 242
 243         config = find_gateway(index, gateway);
 244         if (config == NULL)
 245                 return;
 246
 247         config->active = TRUE;
 248 }
 249
 250 static void set_default_gateway(struct gateway_data *data,
 251                                 enum connman_ipconfig_type type)
 252 {
 253         int index;
 254         int status4 = 0, status6 = 0;
 255         int do_ipv4 = FALSE, do_ipv6 = FALSE;
 256
 257         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 258                 do_ipv4 = TRUE;
 259         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 260                 do_ipv6 = TRUE;
 261         else
 262                 do_ipv4 = do_ipv6 = TRUE;
 263
 264         DBG("type %d gateway ipv4 %p ipv6 %p", type, data->ipv4_gateway,
 265                                                 data->ipv6_gateway);
 266
 267         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL &&
 268                                         data->ipv4_gateway->vpn == TRUE) {
 269                 connman_inet_set_gateway_address(data->index,
 270                                                 data->ipv4_gateway->vpn_ip);
 271                 connman_inet_add_host_route(data->ipv4_gateway->vpn_phy_index,
 272                                                 data->ipv4_gateway->vpn_ip,
 273                                                 data->ipv4_gateway->vpn_phy_ip);
 274                 data->ipv4_gateway->active = TRUE;
 275
 276                 __connman_service_indicate_default(data->service);
 277
 278                 return;
 279         }
 280
 281         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL &&
 282                                         data->ipv6_gateway->vpn == TRUE) {
 283                 connman_inet_set_ipv6_gateway_address(data->index,
 284                                                 data->ipv6_gateway->vpn_ip);
 285                 connman_inet_add_host_route(data->ipv6_gateway->vpn_phy_index,
 286                                                 data->ipv6_gateway->vpn_ip,
 287                                                 data->ipv6_gateway->vpn_phy_ip);
 288                 data->ipv6_gateway->active = TRUE;
 289
 290                 __connman_service_indicate_default(data->service);
 291
 292                 return;
 293         }
 294
 295         index = __connman_service_get_index(data->service);
 296
 297         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL &&
 298                         g_strcmp0(data->ipv4_gateway->gateway,
 299                                                         "0.0.0.0") == 0) {
 300                 if (connman_inet_set_gateway_interface(index) < 0)
 301                         return;
 302                 goto done;
 303         }
 304
 305         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL &&
 306                         g_strcmp0(data->ipv6_gateway->gateway,
 307                                                         "::") == 0) {
 308                 if (connman_inet_set_ipv6_gateway_interface(index) < 0)
 309                         return;
 310                 goto done;
 311         }
 312
 313         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL)
 314                 status6 = connman_inet_set_ipv6_gateway_address(index,
 315                                                 data->ipv6_gateway->gateway);
 316
 317         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL)
 318                 status4 = connman_inet_set_gateway_address(index,
 319                                                 data->ipv4_gateway->gateway);
 320
 321         if (status4 < 0 || status6 < 0)
 322                 return;
 323
 324 done:
 325         __connman_service_indicate_default(data->service);
 326 }
 327
 328 static struct gateway_data *find_default_gateway(void)
 329 {
 330         struct gateway_data *found = NULL;
 331         unsigned int order = 0;
 332         GHashTableIter iter;
 333         gpointer value, key;
 334
 335         g_hash_table_iter_init(&iter, gateway_hash);
 336
 337         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 338                 struct gateway_data *data = value;
 339
 340                 if (found == NULL || data->order > order) {
 341                         found = data;
 342                         order = data->order;
 343                 }
 344         }
 345
 346         return found;
 347 }
 348
 349 static void remove_gateway(gpointer user_data)
 350 {
 351         struct gateway_data *data = user_data;
 352
 353         DBG("gateway ipv4 %p ipv6 %p", data->ipv4_gateway, data->ipv6_gateway);
 354
 355         if (data->ipv4_gateway != NULL) {
 356                 g_free(data->ipv4_gateway->gateway);
 357                 g_free(data->ipv4_gateway->vpn_ip);
 358                 g_free(data->ipv4_gateway->vpn_phy_ip);
 359                 g_free(data->ipv4_gateway);
 360         }
 361
 362         if (data->ipv6_gateway != NULL) {
 363                 g_free(data->ipv6_gateway->gateway);
 364                 g_free(data->ipv6_gateway->vpn_ip);
 365                 g_free(data->ipv6_gateway->vpn_phy_ip);
 366                 g_free(data->ipv6_gateway);
 367         }
 368
 369         g_free(data);
 370 }
 371
 372 static void connection_delgateway(int index, const char *gateway)
 373 {
 374         struct gateway_config *config;
 375         struct gateway_data *data;
 376
 377         DBG("index %d gateway %s", index, gateway);
 378
 379         config = find_gateway(index, gateway);
 380         if (config != NULL)
 381                 config->active = FALSE;
 382
 383         data = find_default_gateway();
 384         if (data != NULL)
 385                 set_default_gateway(data, CONNMAN_IPCONFIG_TYPE_ALL);
 386 }
 387
 388 static struct connman_rtnl connection_rtnl = {
 389         .name           = "connection",
 390         .newgateway     = connection_newgateway,
 391         .delgateway     = connection_delgateway,
 392 };
 393
 394 static struct gateway_data *find_active_gateway(void)
 395 {
 396         GHashTableIter iter;
 397         gpointer value, key;
 398
 399         DBG("");
 400
 401         g_hash_table_iter_init(&iter, gateway_hash);
 402
 403         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 404                 struct gateway_data *data = value;
 405
 406                 if (data->ipv4_gateway != NULL &&
 407                                 data->ipv4_gateway->active == TRUE)
 408                         return data;
 409
 410                 if (data->ipv6_gateway != NULL &&
 411                                 data->ipv6_gateway->active == TRUE)
 412                         return data;
 413         }
 414
 415         return NULL;
 416 }
 417
 418 static void update_order(void)
 419 {
 420         GHashTableIter iter;
 421         gpointer value, key;
 422
 423         DBG("");
 424
 425         g_hash_table_iter_init(&iter, gateway_hash);
 426
 427         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 428                 struct gateway_data *data = value;
 429
 430                 data->order = __connman_service_get_order(data->service);
 431         }
 432 }
 433
 434 void __connman_connection_gateway_activate(struct connman_service *service,
 435                                         enum connman_ipconfig_type type)
 436 {
 437         struct gateway_data *data = NULL;
 438
 439         data = g_hash_table_lookup(gateway_hash, service);
 440         if (data == NULL)
 441                 return;
 442
 443         DBG("gateway %p/%p type %d", data->ipv4_gateway,
 444                                         data->ipv6_gateway, type);
 445
 446         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 447                 data->ipv4_gateway->active = TRUE;
 448         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 449                 data->ipv6_gateway->active = TRUE;
 450 }
 451
 452 int __connman_connection_gateway_add(struct connman_service *service,
 453                                         const char *gateway,
 454                                         enum connman_ipconfig_type type,
 455                                         const char *peer)
 456 {
 457         struct gateway_data *active_gateway = NULL;
 458         struct gateway_data *new_gateway = NULL;
 459         int index;
 460
 461         index = __connman_service_get_index(service);
 462
 463         DBG("service %p index %d gateway %s vpn ip %s type %d",
 464                 service, index, gateway, peer, type);
 465
 466         /*
 467          * If gateway is NULL, it's a point to point link and the default
 468          * gateway for ipv4 is 0.0.0.0 and for ipv6 is ::, meaning the
 469          * interface
 470          */
 471         if (gateway == NULL && type == CONNMAN_IPCONFIG_TYPE_IPV4)
 472                 gateway = "0.0.0.0";
 473
 474         if (gateway == NULL && type == CONNMAN_IPCONFIG_TYPE_IPV6)
 475                 gateway = "::";
 476
 477         active_gateway = find_active_gateway();
 478         new_gateway = add_gateway(service, index, gateway, type);
 479         if (new_gateway == NULL)
 480                 return -EINVAL;
 481
 482         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 483                         new_gateway->ipv6_gateway != NULL &&
 484                         g_strcmp0(new_gateway->ipv6_gateway->gateway,
 485                                                                 "::") != 0)
 486                 connman_inet_add_ipv6_host_route(index,
 487                                         new_gateway->ipv6_gateway->gateway,
 488                                         NULL);
 489
 490         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 491                         new_gateway->ipv4_gateway != NULL &&
 492                         g_strcmp0(new_gateway->ipv4_gateway->gateway,
 493                                                         "0.0.0.0") != 0)
 494                 connman_inet_add_host_route(index,
 495                                         new_gateway->ipv4_gateway->gateway,
 496                                         NULL);
 497
 498         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 499                                 new_gateway->ipv4_gateway != NULL) {
 500                 __connman_service_nameserver_add_routes(service,
 501                                         new_gateway->ipv4_gateway->gateway);
 502                 __connman_service_ipconfig_indicate_state(service,
 503                                                 CONNMAN_SERVICE_STATE_READY,
 504                                                 CONNMAN_IPCONFIG_TYPE_IPV4);
 505         }
 506
 507         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 508                                 new_gateway->ipv6_gateway != NULL) {
 509                 __connman_service_nameserver_add_routes(service,
 510                                         new_gateway->ipv6_gateway->gateway);
 511                 __connman_service_ipconfig_indicate_state(service,
 512                                                 CONNMAN_SERVICE_STATE_READY,
 513                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
 514         }
 515
 516         if (connman_service_get_type(service) == CONNMAN_SERVICE_TYPE_VPN) {
 517                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 518                                         new_gateway->ipv4_gateway != NULL) {
 519                         new_gateway->ipv4_gateway->vpn = TRUE;
 520                         if (peer != NULL)
 521                                 new_gateway->ipv4_gateway->vpn_ip =
 522                                                         g_strdup(peer);
 523                         else if (gateway != NULL)
 524                                 new_gateway->ipv4_gateway->vpn_ip =
 525                                                         g_strdup(gateway);
 526                         if (active_gateway) {
 527                                 const char *new_ipv4_gateway;
 528
 529                                 new_ipv4_gateway =
 530                                         active_gateway->ipv4_gateway->gateway;
 531                                 if (new_ipv4_gateway != NULL &&
 532                                          g_strcmp0(new_ipv4_gateway,
 533                                                         "0.0.0.0") != 0)
 534                                         new_gateway->ipv4_gateway->vpn_phy_ip =
 535                                                 g_strdup(new_ipv4_gateway);
 536
 537                                 new_gateway->ipv4_gateway->vpn_phy_index =
 538                                                         active_gateway->index;
 539                         }
 540
 541                 } else if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 542                                         new_gateway->ipv6_gateway != NULL) {
 543                         new_gateway->ipv6_gateway->vpn = TRUE;
 544                         if (peer != NULL)
 545                                 new_gateway->ipv6_gateway->vpn_ip =
 546                                                         g_strdup(peer);
 547                         else if (gateway != NULL)
 548                                 new_gateway->ipv6_gateway->vpn_ip =
 549                                                         g_strdup(gateway);
 550                         if (active_gateway) {
 551                                 const char *new_ipv6_gateway;
 552
 553                                 new_ipv6_gateway =
 554                                         active_gateway->ipv6_gateway->gateway;
 555                                 if (new_ipv6_gateway != NULL &&
 556                                         g_strcmp0(new_ipv6_gateway, "::") != 0)
 557                                         new_gateway->ipv6_gateway->vpn_phy_ip =
 558                                                 g_strdup(new_ipv6_gateway);
 559
 560                                 new_gateway->ipv6_gateway->vpn_phy_index =
 561                                                         active_gateway->index;
 562                         }
 563                 }
 564         } else {
 565                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 566                                         new_gateway->ipv4_gateway != NULL)
 567                         new_gateway->ipv4_gateway->vpn = FALSE;
 568
 569                 if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 570                                         new_gateway->ipv6_gateway != NULL)
 571                         new_gateway->ipv6_gateway->vpn = FALSE;
 572         }
 573
 574         if (active_gateway == NULL) {
 575                 set_default_gateway(new_gateway, type);
 576                 return 0;
 577         }
 578
 579         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 580                                 new_gateway->ipv4_gateway != NULL &&
 581                                 new_gateway->ipv4_gateway->vpn == TRUE) {
 582                 connman_inet_add_host_route(active_gateway->index,
 583                                         new_gateway->ipv4_gateway->gateway,
 584                                         active_gateway->ipv4_gateway->gateway);
 585                 connman_inet_clear_gateway_address(active_gateway->index,
 586                                         active_gateway->ipv4_gateway->gateway);
 587         }
 588
 589         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 590                                 new_gateway->ipv6_gateway != NULL &&
 591                                 new_gateway->ipv6_gateway->vpn == TRUE) {
 592                 connman_inet_add_ipv6_host_route(active_gateway->index,
 593                                         new_gateway->ipv6_gateway->gateway,
 594                                         active_gateway->ipv6_gateway->gateway);
 595                 connman_inet_clear_ipv6_gateway_address(active_gateway->index,
 596                                         active_gateway->ipv6_gateway->gateway);
 597         }
 598
 599         return 0;
 600 }
 601
 602 void __connman_connection_gateway_remove(struct connman_service *service,
 603                                         enum connman_ipconfig_type type)
 604 {
 605         struct gateway_data *data = NULL;
 606         gboolean set_default4 = FALSE, set_default6 = FALSE;
 607         int do_ipv4 = FALSE, do_ipv6 = FALSE;
 608         int err;
 609
 610         DBG("service %p type %d", service, type);
 611
 612         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 613                 do_ipv4 = TRUE;
 614         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 615                 do_ipv6 = TRUE;
 616         else
 617                 do_ipv4 = do_ipv6 = TRUE;
 618
 619         __connman_service_nameserver_del_routes(service);
 620
 621         data = g_hash_table_lookup(gateway_hash, service);
 622         if (data == NULL)
 623                 return;
 624
 625         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL)
 626                 set_default4 = data->ipv4_gateway->vpn;
 627
 628         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL)
 629                 set_default6 = data->ipv6_gateway->vpn;
 630
 631         DBG("ipv4 gateway %s ipv6 gateway %s vpn %d/%d",
 632                 data->ipv4_gateway ? data->ipv4_gateway->gateway : "<null>",
 633                 data->ipv6_gateway ? data->ipv6_gateway->gateway : "<null>",
 634                 set_default4, set_default6);
 635
 636         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL &&
 637                         data->ipv4_gateway->vpn == TRUE && data->index >= 0)
 638                 connman_inet_del_host_route(data->index,
 639                                                 data->ipv4_gateway->gateway);
 640
 641         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL &&
 642                         data->ipv6_gateway->vpn == TRUE && data->index >= 0)
 643                 connman_inet_del_ipv6_host_route(data->index,
 644                                                 data->ipv6_gateway->gateway);
 645
 646         __connman_service_nameserver_del_routes(service);
 647
 648         err = disable_gateway(data, type);
 649
 650         /*
 651          * We remove the service from the hash only if all the gateway
 652          * settings are to be removed.
 653          */
 654         if (do_ipv4 == do_ipv6 ||
 655                 (data->ipv4_gateway != NULL && data->ipv6_gateway == NULL
 656                         && do_ipv4 == TRUE) ||
 657                 (data->ipv6_gateway != NULL && data->ipv4_gateway == NULL
 658                         && do_ipv6 == TRUE)
 659                 )
 660                 g_hash_table_remove(gateway_hash, service);
 661         else
 662                 DBG("Not yet removing gw ipv4 %p/%d ipv6 %p/%d",
 663                         data->ipv4_gateway, do_ipv4,
 664                         data->ipv6_gateway, do_ipv6);
 665
 666         /* with vpn this will be called after the network was deleted,
 667          * we need to call set_default here because we will not recieve any
 668          * gateway delete notification.
 669          * We hit the same issue if remove_gateway() fails.
 670          */
 671         if (set_default4 || set_default6 || err < 0) {
 672                 data = find_default_gateway();
 673                 if (data != NULL)
 674                         set_default_gateway(data, type);
 675         }
 676 }
 677
 678 gboolean __connman_connection_update_gateway(void)
 679 {
 680         struct gateway_data *active_gateway, *default_gateway;
 681         gboolean updated = FALSE;
 682
 683         if (gateway_hash == NULL)
 684                 return updated;
 685
 686         update_order();
 687
 688         active_gateway = find_active_gateway();
 689         default_gateway = find_default_gateway();
 690
 691         if (active_gateway && active_gateway != default_gateway)
 692                 updated = TRUE;
 693
 694         return updated;
 695 }
 696
 697 int __connman_connection_init(void)
 698 {
 699         int err;
 700
 701         DBG("");
 702
 703         gateway_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 704                                                         NULL, remove_gateway);
 705
 706         err = connman_rtnl_register(&connection_rtnl);
 707         if (err < 0)
 708                 connman_error("Failed to setup RTNL gateway driver");
 709
 710         return err;
 711 }
 712
 713 void __connman_connection_cleanup(void)
 714 {
 715         GHashTableIter iter;
 716         gpointer value, key;
 717
 718         DBG("");
 719
 720         connman_rtnl_unregister(&connection_rtnl);
 721
 722         g_hash_table_iter_init(&iter, gateway_hash);
 723
 724         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 725                 struct gateway_data *data = value;
 726
 727                 disable_gateway(data, CONNMAN_IPCONFIG_TYPE_ALL);
 728         }
 729
 730         g_hash_table_destroy(gateway_hash);
 731         gateway_hash = NULL;
 732 }