src/provider.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 <stdio.h>
  27 #include <string.h>
  28 #include <gdbus.h>
  29
  30 #include "connman.h"
  31
  32 static DBusConnection *connection = NULL;
  33
  34 static GHashTable *provider_hash = NULL;
  35
  36 static GSList *driver_list = NULL;
  37
  38 struct connman_provider {
  39         struct connman_element element;
  40         struct connman_service *vpn_service;
  41         char *identifier;
  42         char *name;
  43         char *type;
  44         char *dns;
  45         char *domain;
  46         struct connman_provider_driver *driver;
  47         void *driver_data;
  48 };
  49
  50 void __connman_provider_append_properties(struct connman_provider *provider,
  51                                                         DBusMessageIter *iter)
  52 {
  53         if (provider->name != NULL)
  54                 connman_dbus_dict_append_basic(iter, "Name",
  55                                         DBUS_TYPE_STRING, &provider->name);
  56
  57         if (provider->type != NULL)
  58                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
  59                                                  &provider->type);
  60 }
  61
  62 static struct connman_provider *connman_provider_lookup(const char *identifier)
  63 {
  64         struct connman_provider *provider = NULL;
  65
  66         provider = g_hash_table_lookup(provider_hash, identifier);
  67
  68         return provider;
  69 }
  70
  71 static int connman_provider_setup_vpn_ipv4(struct connman_provider *provider,
  72                                                 struct connman_element *element)
  73 {
  74         if (element == NULL || provider == NULL)
  75                 return -EINVAL;
  76
  77         DBG("set vpn type %d", element->type);
  78
  79         g_free(element->ipv4.address);
  80         element->ipv4.address = g_strdup(provider->element.ipv4.address);
  81
  82         g_free(element->ipv4.netmask);
  83         element->ipv4.netmask = g_strdup(provider->element.ipv4.netmask);
  84
  85         g_free(element->ipv4.gateway);
  86         element->ipv4.gateway = g_strdup(provider->element.ipv4.gateway);
  87
  88         g_free(element->ipv4.broadcast);
  89         element->ipv4.broadcast = g_strdup(provider->element.ipv4.broadcast);
  90
  91         g_free(element->ipv4.pac);
  92         element->ipv4.pac = g_strdup(provider->element.ipv4.pac);
  93
  94         return connman_element_register(element, &provider->element);
  95 }
  96
  97 struct connman_provider *connman_provider_ref(struct connman_provider *provider)
  98 {
  99         DBG("provider %p", provider);
 100
 101         if (connman_element_ref(&provider->element) == NULL)
 102                 return NULL;
 103
 104         return provider;
 105 }
 106
 107 void connman_provider_unref(struct connman_provider *provider)
 108 {
 109         DBG("provider %p", provider);
 110
 111         connman_element_unref(&provider->element);
 112 }
 113
 114 static gboolean match_driver(struct connman_provider *provider,
 115                                 struct connman_provider_driver *driver)
 116 {
 117         if (g_strcmp0(driver->name, provider->type) == 0)
 118                 return TRUE;
 119
 120         return FALSE;
 121 }
 122
 123 static int provider_probe(struct connman_provider *provider)
 124 {
 125         GSList *list;
 126
 127         DBG("provider %p name %s", provider, provider->name);
 128
 129         if (provider->driver != NULL)
 130                 return -EALREADY;
 131
 132         for (list = driver_list; list; list = list->next) {
 133                 struct connman_provider_driver *driver = list->data;
 134
 135                 if (match_driver(provider, driver) == FALSE)
 136                         continue;
 137
 138                 DBG("driver %p name %s", driver, driver->name);
 139
 140                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 141                         provider->driver = driver;
 142                         break;
 143                 }
 144         }
 145
 146         if (provider->driver == NULL)
 147                 return -ENODEV;
 148
 149         return 0;
 150 }
 151
 152 int __connman_provider_disconnect(struct connman_provider *provider)
 153 {
 154         int err;
 155
 156         DBG("provider %p", provider);
 157
 158         if (provider->driver != NULL && provider->driver->disconnect != NULL)
 159                 err = provider->driver->disconnect(provider);
 160         else
 161                 return -EOPNOTSUPP;
 162
 163         __connman_service_indicate_state(provider->vpn_service,
 164                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 165         if (err < 0) {
 166                 if (err != -EINPROGRESS)
 167                         return err;
 168
 169                 return -EINPROGRESS;
 170         }
 171
 172         return 0;
 173 }
 174
 175 int __connman_provider_connect(struct connman_provider *provider)
 176 {
 177         int err;
 178
 179         DBG("provider %p", provider);
 180
 181         g_free(provider->element.ipv4.address);
 182         g_free(provider->element.ipv4.netmask);
 183         g_free(provider->element.ipv4.gateway);
 184         g_free(provider->element.ipv4.broadcast);
 185         g_free(provider->element.ipv4.pac);
 186
 187         provider->element.ipv4.address = NULL;
 188         provider->element.ipv4.netmask = NULL;
 189         provider->element.ipv4.gateway = NULL;
 190         provider->element.ipv4.broadcast = NULL;
 191         provider->element.ipv4.pac = NULL;
 192
 193         if (provider->driver != NULL && provider->driver->connect != NULL)
 194                 err = provider->driver->connect(provider);
 195         else
 196                 return -EOPNOTSUPP;
 197
 198         if (err < 0) {
 199                 if (err != -EINPROGRESS)
 200                         return err;
 201
 202                 __connman_service_indicate_state(provider->vpn_service,
 203                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 204                 return -EINPROGRESS;
 205         }
 206
 207         return 0;
 208 }
 209
 210 int __connman_provider_remove(const char *path)
 211 {
 212         struct connman_provider *provider;
 213
 214         DBG("path %s", path);
 215
 216         provider = g_hash_table_lookup(provider_hash, path);
 217         if (provider == NULL) {
 218                 DBG("patch %s not found", path);
 219                 return -ENXIO;
 220         }
 221
 222         g_hash_table_remove(provider_hash, path);
 223
 224         return 0;
 225 }
 226
 227 static int set_connected(struct connman_provider *provider,
 228                                         connman_bool_t connected)
 229 {
 230         struct connman_service *service = provider->vpn_service;
 231
 232         if (service == NULL)
 233                 return -ENODEV;
 234
 235         if (connected == TRUE) {
 236                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 237                 struct connman_element *element;
 238                 char *nameservers = NULL, *name = NULL;
 239                 const char *value;
 240                 int err;
 241
 242                 type = CONNMAN_ELEMENT_TYPE_IPV4;
 243
 244                 element = connman_element_create(NULL);
 245                 if (element == NULL)
 246                         return -ENOMEM;
 247
 248                 element->type  = type;
 249                 element->index = provider->element.index;
 250
 251                 __connman_service_set_domainname(service, provider->domain);
 252
 253                 nameservers = g_strdup(provider->dns);
 254                 value = nameservers;
 255                 name = connman_inet_ifname(provider->element.index);
 256                 while (value) {
 257                         char *next = strchr(value, ' ');
 258                         if (next)
 259                                 *(next++) = 0;
 260
 261                         __connman_service_append_nameserver(service, value);
 262                         value = next;
 263                 }
 264
 265                 g_free(nameservers);
 266                 g_free(name);
 267
 268                 err = connman_provider_setup_vpn_ipv4(provider, element);
 269                 if (err < 0) {
 270                         connman_element_unref(element);
 271
 272                         __connman_service_indicate_state(service,
 273                                                 CONNMAN_SERVICE_STATE_FAILURE);
 274
 275                         return err;
 276                 }
 277
 278                 __connman_service_indicate_state(service,
 279                                                 CONNMAN_SERVICE_STATE_READY);
 280         } else {
 281                 connman_element_unregister_children(&provider->element);
 282                 __connman_service_indicate_state(service,
 283                                                 CONNMAN_SERVICE_STATE_IDLE);
 284         }
 285
 286         return 0;
 287 }
 288
 289 int connman_provider_set_state(struct connman_provider *provider,
 290                                         enum connman_provider_state state)
 291 {
 292         if (provider == NULL || provider->vpn_service == NULL)
 293                 return -EINVAL;
 294
 295         switch (state) {
 296         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 297                 return -EINVAL;
 298         case CONNMAN_PROVIDER_STATE_IDLE:
 299                 return set_connected(provider, FALSE);
 300         case CONNMAN_PROVIDER_STATE_CONNECT:
 301                 return __connman_service_indicate_state(provider->vpn_service,
 302                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 303         case CONNMAN_PROVIDER_STATE_READY:
 304                 return set_connected(provider, TRUE);
 305         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 306                 return __connman_service_indicate_state(provider->vpn_service,
 307                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 308         case CONNMAN_PROVIDER_STATE_FAILURE:
 309                 return __connman_service_indicate_state(provider->vpn_service,
 310                                         CONNMAN_SERVICE_STATE_FAILURE);
 311         }
 312
 313         return -EINVAL;
 314 }
 315
 316 static void provider_free(gpointer user_data)
 317 {
 318         struct connman_provider *provider = user_data;
 319
 320         DBG("provider %p", provider);
 321
 322         g_free(provider->name);
 323         g_free(provider->type);
 324         g_free(provider->domain);
 325         g_free(provider->identifier);
 326         g_free(provider->dns);
 327         __connman_service_put(provider->vpn_service);
 328 }
 329
 330 static void unregister_provider(gpointer data)
 331 {
 332         struct connman_provider *provider = data;
 333
 334         DBG("provider %p", provider);
 335
 336         __connman_provider_disconnect(provider);
 337
 338         connman_element_unregister(&provider->element);
 339         connman_provider_unref(provider);
 340 }
 341
 342 static void provider_destruct(struct connman_element *element)
 343 {
 344         struct connman_provider *provider = element->private;
 345
 346         DBG("provider %p", provider);
 347
 348         provider_free(provider);
 349 }
 350
 351 static void __connman_provider_initialize(struct connman_provider *provider)
 352 {
 353         DBG("provider %p", provider);
 354
 355         __connman_element_initialize(&provider->element);
 356
 357         provider->element.private = provider;
 358         provider->element.destruct = provider_destruct;
 359
 360         provider->element.ipv4.address = NULL;
 361         provider->element.ipv4.netmask = NULL;
 362         provider->element.ipv4.gateway = NULL;
 363         provider->element.ipv4.broadcast = NULL;
 364         provider->element.ipv4.pac = NULL;
 365
 366         provider->name = NULL;
 367         provider->type = NULL;
 368         provider->dns = NULL;
 369         provider->domain = NULL;
 370         provider->identifier = NULL;
 371 }
 372
 373 static struct connman_provider *connman_provider_new(void)
 374 {
 375         struct connman_provider *provider;
 376
 377         provider = g_try_new0(struct connman_provider, 1);
 378         if (provider == NULL)
 379                 return NULL;
 380
 381         DBG("provider %p", provider);
 382         __connman_provider_initialize(provider);
 383
 384         return provider;
 385 }
 386
 387 static int provider_register(struct connman_provider *provider)
 388 {
 389         DBG("provider %p", provider);
 390
 391         return 0;
 392 }
 393
 394 static struct connman_provider *connman_provider_get(const char *identifier)
 395 {
 396         struct connman_provider *provider;
 397
 398         provider = g_hash_table_lookup(provider_hash, identifier);
 399         if (provider != NULL)
 400                 return provider;
 401
 402         provider = connman_provider_new();
 403         if (provider == NULL)
 404                 return NULL;
 405
 406         DBG("provider %p", provider);
 407
 408         provider->identifier = g_strdup(identifier);
 409
 410         g_hash_table_insert(provider_hash, provider->identifier, provider);
 411
 412         provider->element.name = g_strdup(identifier);
 413         connman_element_register(&provider->element, NULL);
 414
 415         return provider;
 416 }
 417
 418 static struct connman_provider *connman_provider_create(const char *name)
 419 {
 420         struct connman_provider *provider;
 421
 422         provider = connman_provider_get(name);
 423
 424         if (provider == NULL)
 425                 return NULL;
 426
 427         provider_register(provider);
 428
 429         return provider;
 430 }
 431
 432 int __connman_provider_create_and_connect(DBusMessage *msg)
 433 {
 434         struct connman_provider *provider;
 435         DBusMessageIter iter, array;
 436         const char *type = NULL, *name = NULL, *service_path = NULL;
 437         char *ident;
 438         gboolean created = FALSE;
 439         int err;
 440
 441         dbus_message_iter_init(msg, &iter);
 442         dbus_message_iter_recurse(&iter, &array);
 443
 444         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 445                 DBusMessageIter entry, value;
 446                 const char *key;
 447
 448                 dbus_message_iter_recurse(&array, &entry);
 449                 dbus_message_iter_get_basic(&entry, &key);
 450
 451                 dbus_message_iter_next(&entry);
 452                 dbus_message_iter_recurse(&entry, &value);
 453
 454                 switch (dbus_message_iter_get_arg_type(&value)) {
 455                 case DBUS_TYPE_STRING:
 456                         if (g_str_equal(key, "Type") == TRUE)
 457                                 dbus_message_iter_get_basic(&value, &type);
 458                         else if (g_str_equal(key, "Name") == TRUE)
 459                                 dbus_message_iter_get_basic(&value, &name);
 460                         break;
 461                 }
 462
 463                 if (type != NULL && name != NULL)
 464                         break;
 465
 466                 dbus_message_iter_next(&array);
 467         }
 468
 469         DBG("Type %s name %s", type, name);
 470
 471         if (type == NULL || name == NULL) {
 472                 err = -EOPNOTSUPP;
 473                 goto failed;
 474         }
 475
 476         ident = g_strdup_printf("%s_%s", type, name);
 477
 478         provider = connman_provider_lookup(ident);
 479
 480         if (provider == NULL) {
 481                 created = TRUE;
 482                 provider = connman_provider_create(ident);
 483                 if (provider) {
 484                         provider->name = g_strdup(name);
 485                         provider->type = g_strdup(type);
 486                 }
 487         }
 488
 489         if (provider == NULL) {
 490                 DBG("can not create provider");
 491                 err = -EOPNOTSUPP;
 492                 goto failed;
 493         }
 494         dbus_message_iter_init(msg, &iter);
 495         dbus_message_iter_recurse(&iter, &array);
 496
 497         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 498                 DBusMessageIter entry, value;
 499                 const char *key, *str;
 500
 501                 dbus_message_iter_recurse(&array, &entry);
 502                 dbus_message_iter_get_basic(&entry, &key);
 503
 504                 dbus_message_iter_next(&entry);
 505                 dbus_message_iter_recurse(&entry, &value);
 506
 507                 switch (dbus_message_iter_get_arg_type(&value)) {
 508                 case DBUS_TYPE_STRING:
 509                         dbus_message_iter_get_basic(&value, &str);
 510                         connman_provider_set_string(provider, key, str);
 511                         break;
 512                 }
 513
 514                 dbus_message_iter_next(&array);
 515         }
 516
 517         g_free(ident);
 518
 519         if (provider == NULL) {
 520                 err = -EOPNOTSUPP;
 521                 goto failed;
 522         }
 523
 524         if (created == TRUE)
 525                 provider_probe(provider);
 526
 527         provider->vpn_service =
 528                         __connman_service_create_from_provider(provider);
 529         if (provider->vpn_service == NULL) {
 530                 err = -EOPNOTSUPP;
 531                 goto failed;
 532         }
 533
 534         err = __connman_service_connect(provider->vpn_service);
 535         if (err < 0 && err != -EINPROGRESS)
 536                 goto failed;
 537
 538         service_path = __connman_service_get_path(provider->vpn_service);
 539         g_dbus_send_reply(connection, msg,
 540                                 DBUS_TYPE_OBJECT_PATH, &service_path,
 541                                                         DBUS_TYPE_INVALID);
 542         return 0;
 543
 544 failed:
 545         if (provider != NULL && created == TRUE) {
 546                 DBG("can not connect delete provider");
 547                 connman_provider_unref(provider);
 548
 549                 if (provider->vpn_service != NULL)
 550                         __connman_service_put(provider->vpn_service);
 551         }
 552
 553         return err;
 554 }
 555
 556 const char * __connman_provider_get_ident(struct connman_provider *provider)
 557 {
 558         if (provider == NULL)
 559                 return NULL;
 560
 561         return provider->identifier;
 562 }
 563
 564 int connman_provider_set_string(struct connman_provider *provider,
 565                                         const char *key, const char *value)
 566 {
 567         DBG("provider %p key %s value %s", provider, key, value);
 568
 569         if (g_str_equal(key, "Type") == TRUE) {
 570                 g_free(provider->type);
 571                 provider->type = g_strdup(value);
 572         } else if (g_str_equal(key, "Name") == TRUE) {
 573                 g_free(provider->name);
 574                 provider->name = g_strdup(value);
 575         } else if (g_str_equal(key, "Gateway") == TRUE) {
 576                 g_free(provider->element.ipv4.gateway);
 577                 provider->element.ipv4.gateway = g_strdup(value);
 578         } else if (g_str_equal(key, "Address") == TRUE) {
 579                 g_free(provider->element.ipv4.address);
 580                 provider->element.ipv4.address = g_strdup(value);
 581         } else if (g_str_equal(key, "Netmask") == TRUE) {
 582                 g_free(provider->element.ipv4.netmask);
 583                 provider->element.ipv4.netmask = g_strdup(value);
 584         } else if (g_str_equal(key, "PAC") == TRUE) {
 585                 g_free(provider->element.ipv4.pac);
 586                 provider->element.ipv4.pac = g_strdup(value);
 587         } else if (g_str_equal(key, "DNS") == TRUE) {
 588                 g_free(provider->dns);
 589                 provider->dns = g_strdup(value);
 590         } else if (g_str_equal(key, "Domain") == TRUE) {
 591                 g_free(provider->domain);
 592                 provider->domain = g_strdup(value);
 593         }
 594
 595         return connman_element_set_string(&provider->element, key, value);
 596 }
 597
 598 const char *connman_provider_get_string(struct connman_provider *provider,
 599                                                         const char *key)
 600 {
 601         DBG("provider %p key %s", provider, key);
 602
 603         if (g_str_equal(key, "Type") == TRUE)
 604                 return provider->type;
 605         else if (g_str_equal(key, "Name") == TRUE)
 606                 return provider->name;
 607
 608         return connman_element_get_string(&provider->element, key);
 609 }
 610
 611 void *connman_provider_get_data(struct connman_provider *provider)
 612 {
 613         return provider->driver_data;
 614 }
 615
 616 void connman_provider_set_data(struct connman_provider *provider, void *data)
 617 {
 618         provider->driver_data = data;
 619 }
 620
 621 void connman_provider_set_index(struct connman_provider *provider, int index)
 622 {
 623         struct connman_service *service = provider->vpn_service;
 624         struct connman_ipconfig *ipconfig;
 625
 626         DBG("");
 627
 628         ipconfig = __connman_service_get_ipconfig(service);
 629
 630         if (ipconfig == NULL) {
 631                 __connman_service_create_ipconfig(service, index);
 632
 633                 ipconfig = __connman_service_get_ipconfig(service);
 634                 if (ipconfig == NULL) {
 635                         DBG("Couldnt create ipconfig");
 636                         goto done;
 637                 }
 638         }
 639
 640         connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 641         __connman_ipconfig_set_index(ipconfig, index);
 642
 643
 644 done:
 645         provider->element.index = index;
 646 }
 647
 648 int connman_provider_get_index(struct connman_provider *provider)
 649 {
 650         return provider->element.index;
 651 }
 652
 653 static gint compare_priority(gconstpointer a, gconstpointer b)
 654 {
 655         return 0;
 656 }
 657
 658 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
 659 {
 660         struct connman_provider *provider = value;
 661
 662         if (provider->driver != NULL && provider->driver->remove)
 663                 provider->driver->remove(provider);
 664 }
 665
 666 int connman_provider_driver_register(struct connman_provider_driver *driver)
 667 {
 668         DBG("driver %p name %s", driver, driver->name);
 669
 670         driver_list = g_slist_insert_sorted(driver_list, driver,
 671                                                         compare_priority);
 672         return 0;
 673 }
 674
 675 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 676 {
 677         DBG("driver %p name %s", driver, driver->name);
 678
 679         driver_list = g_slist_remove(driver_list, driver);
 680 }
 681
 682 int __connman_provider_init(void)
 683 {
 684         DBG("");
 685
 686         connection = connman_dbus_get_connection();
 687
 688         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 689                                                 NULL, unregister_provider);
 690         return 0;
 691 }
 692
 693 void __connman_provider_cleanup(void)
 694 {
 695         DBG("");
 696
 697         g_hash_table_foreach(provider_hash, clean_provider, NULL);
 698
 699         g_hash_table_destroy(provider_hash);
 700         provider_hash = NULL;
 701
 702         dbus_connection_unref(connection);
 703 }