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
 241                 type = CONNMAN_ELEMENT_TYPE_IPV4;
 242
 243                 element = connman_element_create(NULL);
 244                 if (element == NULL)
 245                         return -ENOMEM;
 246
 247                 element->type  = type;
 248                 element->index = provider->element.index;
 249
 250                 __connman_service_set_domainname(service, provider->domain);
 251
 252                 nameservers = g_strdup(provider->dns);
 253                 value = nameservers;
 254                 name = connman_inet_ifname(provider->element.index);
 255                 while (value) {
 256                         char *next = strchr(value, ' ');
 257                         if (next)
 258                                 *(next++) = 0;
 259
 260                         __connman_service_append_nameserver(service, value);
 261                         value = next;
 262                 }
 263
 264                 g_free(nameservers);
 265                 g_free(name);
 266
 267                 if (connman_provider_setup_vpn_ipv4(provider, element) < 0) {
 268                         connman_element_unref(element);
 269
 270                         __connman_service_indicate_state(service,
 271                                                 CONNMAN_SERVICE_STATE_FAILURE);
 272                 }
 273
 274                 __connman_service_indicate_state(service,
 275                                                 CONNMAN_SERVICE_STATE_READY);
 276         } else {
 277                 connman_element_unregister_children(&provider->element);
 278                 __connman_service_indicate_state(service,
 279                                                 CONNMAN_SERVICE_STATE_IDLE);
 280         }
 281
 282         return 0;
 283 }
 284
 285 int connman_provider_set_state(struct connman_provider *provider,
 286                                         enum connman_provider_state state)
 287 {
 288         if (provider == NULL || provider->vpn_service == NULL)
 289                 return -EINVAL;
 290
 291         switch (state) {
 292         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 293                 return -EINVAL;
 294         case CONNMAN_PROVIDER_STATE_IDLE:
 295                 return set_connected(provider, FALSE);
 296         case CONNMAN_PROVIDER_STATE_CONNECT:
 297                 return __connman_service_indicate_state(provider->vpn_service,
 298                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 299         case CONNMAN_PROVIDER_STATE_READY:
 300                 return set_connected(provider, TRUE);
 301         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 302                 return __connman_service_indicate_state(provider->vpn_service,
 303                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 304         case CONNMAN_PROVIDER_STATE_FAILURE:
 305                 return __connman_service_indicate_state(provider->vpn_service,
 306                                         CONNMAN_SERVICE_STATE_FAILURE);
 307         }
 308
 309         return -EINVAL;
 310 }
 311
 312 static void provider_free(gpointer user_data)
 313 {
 314         struct connman_provider *provider = user_data;
 315
 316         DBG("provider %p", provider);
 317
 318         g_free(provider->name);
 319         g_free(provider->type);
 320         g_free(provider->domain);
 321         g_free(provider->identifier);
 322         g_free(provider->dns);
 323         __connman_service_put(provider->vpn_service);
 324 }
 325
 326 static void unregister_provider(gpointer data)
 327 {
 328         struct connman_provider *provider = data;
 329
 330         DBG("provider %p", provider);
 331
 332         __connman_provider_disconnect(provider);
 333
 334         connman_element_unregister(&provider->element);
 335         connman_provider_unref(provider);
 336 }
 337
 338 static void provider_destruct(struct connman_element *element)
 339 {
 340         struct connman_provider *provider = element->private;
 341
 342         DBG("provider %p", provider);
 343
 344         provider_free(provider);
 345 }
 346
 347 static void __connman_provider_initialize(struct connman_provider *provider)
 348 {
 349         DBG("provider %p", provider);
 350
 351         __connman_element_initialize(&provider->element);
 352
 353         provider->element.private = provider;
 354         provider->element.destruct = provider_destruct;
 355
 356         provider->element.ipv4.address = NULL;
 357         provider->element.ipv4.netmask = NULL;
 358         provider->element.ipv4.gateway = NULL;
 359         provider->element.ipv4.broadcast = NULL;
 360         provider->element.ipv4.pac = NULL;
 361
 362         provider->name = NULL;
 363         provider->type = NULL;
 364         provider->dns = NULL;
 365         provider->domain = NULL;
 366         provider->identifier = NULL;
 367 }
 368
 369 static struct connman_provider *connman_provider_new(void)
 370 {
 371         struct connman_provider *provider;
 372
 373         provider = g_try_new0(struct connman_provider, 1);
 374         if (provider == NULL)
 375                 return NULL;
 376
 377         DBG("provider %p", provider);
 378         __connman_provider_initialize(provider);
 379
 380         return provider;
 381 }
 382
 383 static int provider_register(struct connman_provider *provider)
 384 {
 385         DBG("provider %p", provider);
 386
 387         return 0;
 388 }
 389
 390 static struct connman_provider *connman_provider_get(const char *identifier)
 391 {
 392         struct connman_provider *provider;
 393
 394         provider = g_hash_table_lookup(provider_hash, identifier);
 395         if (provider != NULL)
 396                 return provider;
 397
 398         provider = connman_provider_new();
 399         if (provider == NULL)
 400                 return NULL;
 401
 402         DBG("provider %p", provider);
 403
 404         provider->identifier = g_strdup(identifier);
 405
 406         g_hash_table_insert(provider_hash, provider->identifier, provider);
 407
 408         provider->element.name = g_strdup(identifier);
 409         connman_element_register(&provider->element, NULL);
 410
 411         return provider;
 412 }
 413
 414 static struct connman_provider *connman_provider_create(const char *name)
 415 {
 416         struct connman_provider *provider;
 417
 418         provider = connman_provider_get(name);
 419
 420         if (provider == NULL)
 421                 return NULL;
 422
 423         provider_register(provider);
 424
 425         return provider;
 426 }
 427
 428 int __connman_provider_create_and_connect(DBusMessage *msg)
 429 {
 430         struct connman_provider *provider;
 431         DBusMessageIter iter, array;
 432         const char *type = NULL, *name = NULL, *service_path = NULL;
 433         char *ident;
 434         gboolean created = FALSE;
 435         int err;
 436
 437         dbus_message_iter_init(msg, &iter);
 438         dbus_message_iter_recurse(&iter, &array);
 439
 440         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 441                 DBusMessageIter entry, value;
 442                 const char *key;
 443
 444                 dbus_message_iter_recurse(&array, &entry);
 445                 dbus_message_iter_get_basic(&entry, &key);
 446
 447                 dbus_message_iter_next(&entry);
 448                 dbus_message_iter_recurse(&entry, &value);
 449
 450                 switch (dbus_message_iter_get_arg_type(&value)) {
 451                 case DBUS_TYPE_STRING:
 452                         if (g_str_equal(key, "Type") == TRUE)
 453                                 dbus_message_iter_get_basic(&value, &type);
 454                         else if (g_str_equal(key, "Name") == TRUE)
 455                                 dbus_message_iter_get_basic(&value, &name);
 456                         break;
 457                 }
 458
 459                 if (type != NULL && name != NULL)
 460                         break;
 461
 462                 dbus_message_iter_next(&array);
 463         }
 464
 465         DBG("Type %s name %s", type, name);
 466
 467         if (type == NULL || name == NULL) {
 468                 err = -EOPNOTSUPP;
 469                 goto failed;
 470         }
 471
 472         ident = g_strdup_printf("%s_%s", type, name);
 473
 474         provider = connman_provider_lookup(ident);
 475
 476         if (provider == NULL) {
 477                 created = TRUE;
 478                 provider = connman_provider_create(ident);
 479                 if (provider) {
 480                         provider->name = g_strdup(name);
 481                         provider->type = g_strdup(type);
 482                 }
 483         }
 484
 485         if (provider == NULL) {
 486                 DBG("can not create provider");
 487                 err = -EOPNOTSUPP;
 488                 goto failed;
 489         }
 490         dbus_message_iter_init(msg, &iter);
 491         dbus_message_iter_recurse(&iter, &array);
 492
 493         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 494                 DBusMessageIter entry, value;
 495                 const char *key, *str;
 496
 497                 dbus_message_iter_recurse(&array, &entry);
 498                 dbus_message_iter_get_basic(&entry, &key);
 499
 500                 dbus_message_iter_next(&entry);
 501                 dbus_message_iter_recurse(&entry, &value);
 502
 503                 switch (dbus_message_iter_get_arg_type(&value)) {
 504                 case DBUS_TYPE_STRING:
 505                         dbus_message_iter_get_basic(&value, &str);
 506                         connman_provider_set_string(provider, key, str);
 507                         break;
 508                 }
 509
 510                 dbus_message_iter_next(&array);
 511         }
 512
 513         g_free(ident);
 514
 515         if (provider == NULL) {
 516                 err = -EOPNOTSUPP;
 517                 goto failed;
 518         }
 519
 520         if (created == TRUE)
 521                 provider_probe(provider);
 522
 523         provider->vpn_service =
 524                         __connman_service_create_from_provider(provider);
 525         if (provider->vpn_service == NULL) {
 526                 err = -EOPNOTSUPP;
 527                 goto failed;
 528         }
 529
 530         err = __connman_service_connect(provider->vpn_service);
 531         if (err < 0 && err != -EINPROGRESS)
 532                 goto failed;
 533
 534         service_path = __connman_service_get_path(provider->vpn_service);
 535         g_dbus_send_reply(connection, msg,
 536                                 DBUS_TYPE_OBJECT_PATH, &service_path,
 537                                                         DBUS_TYPE_INVALID);
 538         return 0;
 539
 540 failed:
 541         if (provider != NULL && created == TRUE) {
 542                 DBG("can not connect delete provider");
 543                 connman_provider_unref(provider);
 544
 545                 if (provider->vpn_service != NULL)
 546                         __connman_service_put(provider->vpn_service);
 547         }
 548
 549         return err;
 550 }
 551
 552 const char * __connman_provider_get_ident(struct connman_provider *provider)
 553 {
 554         if (provider == NULL)
 555                 return NULL;
 556
 557         return provider->identifier;
 558 }
 559
 560 int connman_provider_set_string(struct connman_provider *provider,
 561                                         const char *key, const char *value)
 562 {
 563         DBG("provider %p key %s value %s", provider, key, value);
 564
 565         if (g_str_equal(key, "Type") == TRUE) {
 566                 g_free(provider->type);
 567                 provider->type = g_strdup(value);
 568         } else if (g_str_equal(key, "Name") == TRUE) {
 569                 g_free(provider->name);
 570                 provider->name = g_strdup(value);
 571         } else if (g_str_equal(key, "Gateway") == TRUE) {
 572                 g_free(provider->element.ipv4.gateway);
 573                 provider->element.ipv4.gateway = g_strdup(value);
 574         } else if (g_str_equal(key, "Address") == TRUE) {
 575                 g_free(provider->element.ipv4.address);
 576                 provider->element.ipv4.address = g_strdup(value);
 577         } else if (g_str_equal(key, "Netmask") == TRUE) {
 578                 g_free(provider->element.ipv4.netmask);
 579                 provider->element.ipv4.netmask = g_strdup(value);
 580         } else if (g_str_equal(key, "PAC") == TRUE) {
 581                 g_free(provider->element.ipv4.pac);
 582                 provider->element.ipv4.pac = g_strdup(value);
 583         } else if (g_str_equal(key, "DNS") == TRUE) {
 584                 g_free(provider->dns);
 585                 provider->dns = g_strdup(value);
 586         } else if (g_str_equal(key, "Domain") == TRUE) {
 587                 g_free(provider->domain);
 588                 provider->domain = g_strdup(value);
 589         }
 590
 591         return connman_element_set_string(&provider->element, key, value);
 592 }
 593
 594 const char *connman_provider_get_string(struct connman_provider *provider,
 595                                                         const char *key)
 596 {
 597         DBG("provider %p key %s", provider, key);
 598
 599         if (g_str_equal(key, "Type") == TRUE)
 600                 return provider->type;
 601         else if (g_str_equal(key, "Name") == TRUE)
 602                 return provider->name;
 603
 604         return connman_element_get_string(&provider->element, key);
 605 }
 606
 607 void *connman_provider_get_data(struct connman_provider *provider)
 608 {
 609         return provider->driver_data;
 610 }
 611
 612 void connman_provider_set_data(struct connman_provider *provider, void *data)
 613 {
 614         provider->driver_data = data;
 615 }
 616
 617 void connman_provider_set_index(struct connman_provider *provider, int index)
 618 {
 619         provider->element.index = index;
 620 }
 621
 622 int connman_provider_get_index(struct connman_provider *provider)
 623 {
 624         return provider->element.index;
 625 }
 626
 627 static gint compare_priority(gconstpointer a, gconstpointer b)
 628 {
 629         return 0;
 630 }
 631
 632 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
 633 {
 634         struct connman_provider *provider = value;
 635
 636         if (provider->driver != NULL && provider->driver->remove)
 637                 provider->driver->remove(provider);
 638 }
 639
 640 int connman_provider_driver_register(struct connman_provider_driver *driver)
 641 {
 642         DBG("driver %p name %s", driver, driver->name);
 643
 644         driver_list = g_slist_insert_sorted(driver_list, driver,
 645                                                         compare_priority);
 646         return 0;
 647 }
 648
 649 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 650 {
 651         DBG("driver %p name %s", driver, driver->name);
 652
 653         driver_list = g_slist_remove(driver_list, driver);
 654 }
 655
 656 int __connman_provider_init(void)
 657 {
 658         DBG("");
 659
 660         connection = connman_dbus_get_connection();
 661
 662         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 663                                                 NULL, unregister_provider);
 664         return 0;
 665 }
 666
 667 void __connman_provider_cleanup(void)
 668 {
 669         DBG("");
 670
 671         g_hash_table_foreach(provider_hash, clean_provider, NULL);
 672
 673         g_hash_table_destroy(provider_hash);
 674         provider_hash = NULL;
 675
 676         dbus_connection_unref(connection);
 677 }