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_ipv6_host_route(
 286                                         data->ipv6_gateway->vpn_phy_index,
 287                                         data->ipv6_gateway->vpn_ip,
 288                                         data->ipv6_gateway->vpn_phy_ip);
 289                 data->ipv6_gateway->active = TRUE;
 290
 291                 __connman_service_indicate_default(data->service);
 292
 293                 return;
 294         }
 295
 296         index = __connman_service_get_index(data->service);
 297
 298         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL &&
 299                         g_strcmp0(data->ipv4_gateway->gateway,
 300                                                         "0.0.0.0") == 0) {
 301                 if (connman_inet_set_gateway_interface(index) < 0)
 302                         return;
 303                 goto done;
 304         }
 305
 306         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL &&
 307                         g_strcmp0(data->ipv6_gateway->gateway,
 308                                                         "::") == 0) {
 309                 if (connman_inet_set_ipv6_gateway_interface(index) < 0)
 310                         return;
 311                 goto done;
 312         }
 313
 314         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL)
 315                 status6 = connman_inet_set_ipv6_gateway_address(index,
 316                                                 data->ipv6_gateway->gateway);
 317
 318         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL)
 319                 status4 = connman_inet_set_gateway_address(index,
 320                                                 data->ipv4_gateway->gateway);
 321
 322         if (status4 < 0 || status6 < 0)
 323                 return;
 324
 325 done:
 326         __connman_service_indicate_default(data->service);
 327 }
 328
 329 static struct gateway_data *find_default_gateway(void)
 330 {
 331         struct gateway_data *found = NULL;
 332         unsigned int order = 0;
 333         GHashTableIter iter;
 334         gpointer value, key;
 335
 336         g_hash_table_iter_init(&iter, gateway_hash);
 337
 338         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 339                 struct gateway_data *data = value;
 340
 341                 if (found == NULL || data->order > order) {
 342                         found = data;
 343                         order = data->order;
 344                 }
 345         }
 346
 347         return found;
 348 }
 349
 350 static void remove_gateway(gpointer user_data)
 351 {
 352         struct gateway_data *data = user_data;
 353
 354         DBG("gateway ipv4 %p ipv6 %p", data->ipv4_gateway, data->ipv6_gateway);
 355
 356         if (data->ipv4_gateway != NULL) {
 357                 g_free(data->ipv4_gateway->gateway);
 358                 g_free(data->ipv4_gateway->vpn_ip);
 359                 g_free(data->ipv4_gateway->vpn_phy_ip);
 360                 g_free(data->ipv4_gateway);
 361         }
 362
 363         if (data->ipv6_gateway != NULL) {
 364                 g_free(data->ipv6_gateway->gateway);
 365                 g_free(data->ipv6_gateway->vpn_ip);
 366                 g_free(data->ipv6_gateway->vpn_phy_ip);
 367                 g_free(data->ipv6_gateway);
 368         }
 369
 370         g_free(data);
 371 }
 372
 373 static void connection_delgateway(int index, const char *gateway)
 374 {
 375         struct gateway_config *config;
 376         struct gateway_data *data;
 377
 378         DBG("index %d gateway %s", index, gateway);
 379
 380         config = find_gateway(index, gateway);
 381         if (config != NULL)
 382                 config->active = FALSE;
 383
 384         data = find_default_gateway();
 385         if (data != NULL)
 386                 set_default_gateway(data, CONNMAN_IPCONFIG_TYPE_ALL);
 387 }
 388
 389 static struct connman_rtnl connection_rtnl = {
 390         .name           = "connection",
 391         .newgateway     = connection_newgateway,
 392         .delgateway     = connection_delgateway,
 393 };
 394
 395 static struct gateway_data *find_active_gateway(void)
 396 {
 397         GHashTableIter iter;
 398         gpointer value, key;
 399
 400         DBG("");
 401
 402         g_hash_table_iter_init(&iter, gateway_hash);
 403
 404         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 405                 struct gateway_data *data = value;
 406
 407                 if (data->ipv4_gateway != NULL &&
 408                                 data->ipv4_gateway->active == TRUE)
 409                         return data;
 410
 411                 if (data->ipv6_gateway != NULL &&
 412                                 data->ipv6_gateway->active == TRUE)
 413                         return data;
 414         }
 415
 416         return NULL;
 417 }
 418
 419 static void update_order(void)
 420 {
 421         GHashTableIter iter;
 422         gpointer value, key;
 423
 424         DBG("");
 425
 426         g_hash_table_iter_init(&iter, gateway_hash);
 427
 428         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 429                 struct gateway_data *data = value;
 430
 431                 data->order = __connman_service_get_order(data->service);
 432         }
 433 }
 434
 435 void __connman_connection_gateway_activate(struct connman_service *service,
 436                                         enum connman_ipconfig_type type)
 437 {
 438         struct gateway_data *data = NULL;
 439
 440         data = g_hash_table_lookup(gateway_hash, service);
 441         if (data == NULL)
 442                 return;
 443
 444         DBG("gateway %p/%p type %d", data->ipv4_gateway,
 445                                         data->ipv6_gateway, type);
 446
 447         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 448                 data->ipv4_gateway->active = TRUE;
 449         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 450                 data->ipv6_gateway->active = TRUE;
 451 }
 452
 453 int __connman_connection_gateway_add(struct connman_service *service,
 454                                         const char *gateway,
 455                                         enum connman_ipconfig_type type,
 456                                         const char *peer)
 457 {
 458         struct gateway_data *active_gateway = NULL;
 459         struct gateway_data *new_gateway = NULL;
 460         int index;
 461
 462         index = __connman_service_get_index(service);
 463
 464         DBG("service %p index %d gateway %s vpn ip %s type %d",
 465                 service, index, gateway, peer, type);
 466
 467         /*
 468          * If gateway is NULL, it's a point to point link and the default
 469          * gateway for ipv4 is 0.0.0.0 and for ipv6 is ::, meaning the
 470          * interface
 471          */
 472         if (gateway == NULL && type == CONNMAN_IPCONFIG_TYPE_IPV4)
 473                 gateway = "0.0.0.0";
 474
 475         if (gateway == NULL && type == CONNMAN_IPCONFIG_TYPE_IPV6)
 476                 gateway = "::";
 477
 478         active_gateway = find_active_gateway();
 479         new_gateway = add_gateway(service, index, gateway, type);
 480         if (new_gateway == NULL)
 481                 return -EINVAL;
 482
 483         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 484                         new_gateway->ipv6_gateway != NULL &&
 485                         g_strcmp0(new_gateway->ipv6_gateway->gateway,
 486                                                                 "::") != 0)
 487                 connman_inet_add_ipv6_host_route(index,
 488                                         new_gateway->ipv6_gateway->gateway,
 489                                         NULL);
 490
 491         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 492                         new_gateway->ipv4_gateway != NULL &&
 493                         g_strcmp0(new_gateway->ipv4_gateway->gateway,
 494                                                         "0.0.0.0") != 0)
 495                 connman_inet_add_host_route(index,
 496                                         new_gateway->ipv4_gateway->gateway,
 497                                         NULL);
 498
 499         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 500                                 new_gateway->ipv4_gateway != NULL) {
 501                 __connman_service_nameserver_add_routes(service,
 502                                         new_gateway->ipv4_gateway->gateway);
 503                 __connman_service_ipconfig_indicate_state(service,
 504                                                 CONNMAN_SERVICE_STATE_READY,
 505                                                 CONNMAN_IPCONFIG_TYPE_IPV4);
 506         }
 507
 508         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 509                                 new_gateway->ipv6_gateway != NULL) {
 510                 __connman_service_nameserver_add_routes(service,
 511                                         new_gateway->ipv6_gateway->gateway);
 512                 __connman_service_ipconfig_indicate_state(service,
 513                                                 CONNMAN_SERVICE_STATE_READY,
 514                                                 CONNMAN_IPCONFIG_TYPE_IPV6);
 515         }
 516
 517         if (connman_service_get_type(service) == CONNMAN_SERVICE_TYPE_VPN) {
 518                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 519                                         new_gateway->ipv4_gateway != NULL) {
 520                         new_gateway->ipv4_gateway->vpn = TRUE;
 521                         if (peer != NULL)
 522                                 new_gateway->ipv4_gateway->vpn_ip =
 523                                                         g_strdup(peer);
 524                         else if (gateway != NULL)
 525                                 new_gateway->ipv4_gateway->vpn_ip =
 526                                                         g_strdup(gateway);
 527                         if (active_gateway) {
 528                                 const char *new_ipv4_gateway;
 529
 530                                 new_ipv4_gateway =
 531                                         active_gateway->ipv4_gateway->gateway;
 532                                 if (new_ipv4_gateway != NULL &&
 533                                          g_strcmp0(new_ipv4_gateway,
 534                                                         "0.0.0.0") != 0)
 535                                         new_gateway->ipv4_gateway->vpn_phy_ip =
 536                                                 g_strdup(new_ipv4_gateway);
 537
 538                                 new_gateway->ipv4_gateway->vpn_phy_index =
 539                                                         active_gateway->index;
 540                         }
 541
 542                 } else if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 543                                         new_gateway->ipv6_gateway != NULL) {
 544                         new_gateway->ipv6_gateway->vpn = TRUE;
 545                         if (peer != NULL)
 546                                 new_gateway->ipv6_gateway->vpn_ip =
 547                                                         g_strdup(peer);
 548                         else if (gateway != NULL)
 549                                 new_gateway->ipv6_gateway->vpn_ip =
 550                                                         g_strdup(gateway);
 551                         if (active_gateway) {
 552                                 const char *new_ipv6_gateway;
 553
 554                                 new_ipv6_gateway =
 555                                         active_gateway->ipv6_gateway->gateway;
 556                                 if (new_ipv6_gateway != NULL &&
 557                                         g_strcmp0(new_ipv6_gateway, "::") != 0)
 558                                         new_gateway->ipv6_gateway->vpn_phy_ip =
 559                                                 g_strdup(new_ipv6_gateway);
 560
 561                                 new_gateway->ipv6_gateway->vpn_phy_index =
 562                                                         active_gateway->index;
 563                         }
 564                 }
 565         } else {
 566                 if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 567                                         new_gateway->ipv4_gateway != NULL)
 568                         new_gateway->ipv4_gateway->vpn = FALSE;
 569
 570                 if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 571                                         new_gateway->ipv6_gateway != NULL)
 572                         new_gateway->ipv6_gateway->vpn = FALSE;
 573         }
 574
 575         if (active_gateway == NULL) {
 576                 set_default_gateway(new_gateway, type);
 577                 return 0;
 578         }
 579
 580         if (type == CONNMAN_IPCONFIG_TYPE_IPV4 &&
 581                                 new_gateway->ipv4_gateway != NULL &&
 582                                 new_gateway->ipv4_gateway->vpn == TRUE) {
 583                 connman_inet_add_host_route(active_gateway->index,
 584                                         new_gateway->ipv4_gateway->gateway,
 585                                         active_gateway->ipv4_gateway->gateway);
 586                 connman_inet_clear_gateway_address(active_gateway->index,
 587                                         active_gateway->ipv4_gateway->gateway);
 588         }
 589
 590         if (type == CONNMAN_IPCONFIG_TYPE_IPV6 &&
 591                                 new_gateway->ipv6_gateway != NULL &&
 592                                 new_gateway->ipv6_gateway->vpn == TRUE) {
 593                 connman_inet_add_ipv6_host_route(active_gateway->index,
 594                                         new_gateway->ipv6_gateway->gateway,
 595                                         active_gateway->ipv6_gateway->gateway);
 596                 connman_inet_clear_ipv6_gateway_address(active_gateway->index,
 597                                         active_gateway->ipv6_gateway->gateway);
 598         }
 599
 600         return 0;
 601 }
 602
 603 void __connman_connection_gateway_remove(struct connman_service *service,
 604                                         enum connman_ipconfig_type type)
 605 {
 606         struct gateway_data *data = NULL;
 607         gboolean set_default4 = FALSE, set_default6 = FALSE;
 608         int do_ipv4 = FALSE, do_ipv6 = FALSE;
 609         int err;
 610
 611         DBG("service %p type %d", service, type);
 612
 613         if (type == CONNMAN_IPCONFIG_TYPE_IPV4)
 614                 do_ipv4 = TRUE;
 615         else if (type == CONNMAN_IPCONFIG_TYPE_IPV6)
 616                 do_ipv6 = TRUE;
 617         else
 618                 do_ipv4 = do_ipv6 = TRUE;
 619
 620         __connman_service_nameserver_del_routes(service);
 621
 622         data = g_hash_table_lookup(gateway_hash, service);
 623         if (data == NULL)
 624                 return;
 625
 626         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL)
 627                 set_default4 = data->ipv4_gateway->vpn;
 628
 629         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL)
 630                 set_default6 = data->ipv6_gateway->vpn;
 631
 632         DBG("ipv4 gateway %s ipv6 gateway %s vpn %d/%d",
 633                 data->ipv4_gateway ? data->ipv4_gateway->gateway : "<null>",
 634                 data->ipv6_gateway ? data->ipv6_gateway->gateway : "<null>",
 635                 set_default4, set_default6);
 636
 637         if (do_ipv4 == TRUE && data->ipv4_gateway != NULL &&
 638                         data->ipv4_gateway->vpn == TRUE && data->index >= 0)
 639                 connman_inet_del_host_route(data->index,
 640                                                 data->ipv4_gateway->gateway);
 641
 642         if (do_ipv6 == TRUE && data->ipv6_gateway != NULL &&
 643                         data->ipv6_gateway->vpn == TRUE && data->index >= 0)
 644                 connman_inet_del_ipv6_host_route(data->index,
 645                                                 data->ipv6_gateway->gateway);
 646
 647         __connman_service_nameserver_del_routes(service);
 648
 649         err = disable_gateway(data, type);
 650
 651         /*
 652          * We remove the service from the hash only if all the gateway
 653          * settings are to be removed.
 654          */
 655         if (do_ipv4 == do_ipv6 ||
 656                 (data->ipv4_gateway != NULL && data->ipv6_gateway == NULL
 657                         && do_ipv4 == TRUE) ||
 658                 (data->ipv6_gateway != NULL && data->ipv4_gateway == NULL
 659                         && do_ipv6 == TRUE)
 660                 )
 661                 g_hash_table_remove(gateway_hash, service);
 662         else
 663                 DBG("Not yet removing gw ipv4 %p/%d ipv6 %p/%d",
 664                         data->ipv4_gateway, do_ipv4,
 665                         data->ipv6_gateway, do_ipv6);
 666
 667         /* with vpn this will be called after the network was deleted,
 668          * we need to call set_default here because we will not recieve any
 669          * gateway delete notification.
 670          * We hit the same issue if remove_gateway() fails.
 671          */
 672         if (set_default4 || set_default6 || err < 0) {
 673                 data = find_default_gateway();
 674                 if (data != NULL)
 675                         set_default_gateway(data, type);
 676         }
 677 }
 678
 679 gboolean __connman_connection_update_gateway(void)
 680 {
 681         struct gateway_data *active_gateway, *default_gateway;
 682         gboolean updated = FALSE;
 683
 684         if (gateway_hash == NULL)
 685                 return updated;
 686
 687         update_order();
 688
 689         active_gateway = find_active_gateway();
 690         default_gateway = find_default_gateway();
 691
 692         if (active_gateway && active_gateway != default_gateway)
 693                 updated = TRUE;
 694
 695         return updated;
 696 }
 697
 698 int __connman_connection_init(void)
 699 {
 700         int err;
 701
 702         DBG("");
 703
 704         gateway_hash = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 705                                                         NULL, remove_gateway);
 706
 707         err = connman_rtnl_register(&connection_rtnl);
 708         if (err < 0)
 709                 connman_error("Failed to setup RTNL gateway driver");
 710
 711         return err;
 712 }
 713
 714 void __connman_connection_cleanup(void)
 715 {
 716         GHashTableIter iter;
 717         gpointer value, key;
 718
 719         DBG("");
 720
 721         connman_rtnl_unregister(&connection_rtnl);
 722
 723         g_hash_table_iter_init(&iter, gateway_hash);
 724
 725         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 726                 struct gateway_data *data = value;
 727
 728                 disable_gateway(data, CONNMAN_IPCONFIG_TYPE_ALL);
 729         }
 730
 731         g_hash_table_destroy(gateway_hash);
 732         gateway_hash = NULL;
 733 }