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                 __connman_service_indicate_state(provider->vpn_service,
 243                                         CONNMAN_SERVICE_STATE_CONFIGURATION);
 244
 245                 type = CONNMAN_ELEMENT_TYPE_IPV4;
 246
 247                 element = connman_element_create(NULL);
 248                 if (element == NULL)
 249                         return -ENOMEM;
 250
 251                 element->type  = type;
 252                 element->index = provider->element.index;
 253
 254                 __connman_service_set_domainname(service, provider->domain);
 255
 256                 nameservers = g_strdup(provider->dns);
 257                 value = nameservers;
 258                 name = connman_inet_ifname(provider->element.index);
 259                 while (value) {
 260                         char *next = strchr(value, ' ');
 261                         if (next)
 262                                 *(next++) = 0;
 263
 264                         __connman_service_append_nameserver(service, value);
 265                         value = next;
 266                 }
 267
 268                 g_free(nameservers);
 269                 g_free(name);
 270
 271                 err = connman_provider_setup_vpn_ipv4(provider, element);
 272                 if (err < 0) {
 273                         connman_element_unref(element);
 274
 275                         __connman_service_indicate_state(service,
 276                                                 CONNMAN_SERVICE_STATE_FAILURE);
 277
 278                         return err;
 279                 }
 280
 281                 __connman_service_indicate_state(service,
 282                                                 CONNMAN_SERVICE_STATE_READY);
 283         } else {
 284                 connman_element_unregister_children(&provider->element);
 285                 __connman_service_indicate_state(service,
 286                                                 CONNMAN_SERVICE_STATE_IDLE);
 287         }
 288
 289         return 0;
 290 }
 291
 292 int connman_provider_set_state(struct connman_provider *provider,
 293                                         enum connman_provider_state state)
 294 {
 295         if (provider == NULL || provider->vpn_service == NULL)
 296                 return -EINVAL;
 297
 298         switch (state) {
 299         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 300                 return -EINVAL;
 301         case CONNMAN_PROVIDER_STATE_IDLE:
 302                 return set_connected(provider, FALSE);
 303         case CONNMAN_PROVIDER_STATE_CONNECT:
 304                 return __connman_service_indicate_state(provider->vpn_service,
 305                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 306         case CONNMAN_PROVIDER_STATE_READY:
 307                 return set_connected(provider, TRUE);
 308         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 309                 return __connman_service_indicate_state(provider->vpn_service,
 310                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 311         case CONNMAN_PROVIDER_STATE_FAILURE:
 312                 return __connman_service_indicate_state(provider->vpn_service,
 313                                         CONNMAN_SERVICE_STATE_FAILURE);
 314         }
 315
 316         return -EINVAL;
 317 }
 318
 319 static void provider_free(gpointer user_data)
 320 {
 321         struct connman_provider *provider = user_data;
 322
 323         DBG("provider %p", provider);
 324
 325         g_free(provider->name);
 326         g_free(provider->type);
 327         g_free(provider->domain);
 328         g_free(provider->identifier);
 329         g_free(provider->dns);
 330         __connman_service_put(provider->vpn_service);
 331 }
 332
 333 static void unregister_provider(gpointer data)
 334 {
 335         struct connman_provider *provider = data;
 336
 337         DBG("provider %p", provider);
 338
 339         __connman_provider_disconnect(provider);
 340
 341         connman_element_unregister(&provider->element);
 342         connman_provider_unref(provider);
 343 }
 344
 345 static void provider_destruct(struct connman_element *element)
 346 {
 347         struct connman_provider *provider = element->private;
 348
 349         DBG("provider %p", provider);
 350
 351         provider_free(provider);
 352 }
 353
 354 static void __connman_provider_initialize(struct connman_provider *provider)
 355 {
 356         DBG("provider %p", provider);
 357
 358         __connman_element_initialize(&provider->element);
 359
 360         provider->element.private = provider;
 361         provider->element.destruct = provider_destruct;
 362
 363         provider->element.ipv4.address = NULL;
 364         provider->element.ipv4.netmask = NULL;
 365         provider->element.ipv4.gateway = NULL;
 366         provider->element.ipv4.broadcast = NULL;
 367         provider->element.ipv4.pac = NULL;
 368
 369         provider->name = NULL;
 370         provider->type = NULL;
 371         provider->dns = NULL;
 372         provider->domain = NULL;
 373         provider->identifier = NULL;
 374 }
 375
 376 static struct connman_provider *connman_provider_new(void)
 377 {
 378         struct connman_provider *provider;
 379
 380         provider = g_try_new0(struct connman_provider, 1);
 381         if (provider == NULL)
 382                 return NULL;
 383
 384         DBG("provider %p", provider);
 385         __connman_provider_initialize(provider);
 386
 387         return provider;
 388 }
 389
 390 static int provider_register(struct connman_provider *provider)
 391 {
 392         DBG("provider %p", provider);
 393
 394         return 0;
 395 }
 396
 397 static struct connman_provider *connman_provider_get(const char *identifier)
 398 {
 399         struct connman_provider *provider;
 400
 401         provider = g_hash_table_lookup(provider_hash, identifier);
 402         if (provider != NULL)
 403                 return provider;
 404
 405         provider = connman_provider_new();
 406         if (provider == NULL)
 407                 return NULL;
 408
 409         DBG("provider %p", provider);
 410
 411         provider->identifier = g_strdup(identifier);
 412
 413         g_hash_table_insert(provider_hash, provider->identifier, provider);
 414
 415         provider->element.name = g_strdup(identifier);
 416         connman_element_register(&provider->element, NULL);
 417
 418         return provider;
 419 }
 420
 421 static struct connman_provider *connman_provider_create(const char *name)
 422 {
 423         struct connman_provider *provider;
 424
 425         provider = connman_provider_get(name);
 426
 427         if (provider == NULL)
 428                 return NULL;
 429
 430         provider_register(provider);
 431
 432         return provider;
 433 }
 434
 435 int __connman_provider_create_and_connect(DBusMessage *msg)
 436 {
 437         struct connman_provider *provider;
 438         DBusMessageIter iter, array;
 439         const char *type = NULL, *name = NULL, *service_path = NULL;
 440         char *ident;
 441         gboolean created = FALSE;
 442         int err;
 443
 444         dbus_message_iter_init(msg, &iter);
 445         dbus_message_iter_recurse(&iter, &array);
 446
 447         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 448                 DBusMessageIter entry, value;
 449                 const char *key;
 450
 451                 dbus_message_iter_recurse(&array, &entry);
 452                 dbus_message_iter_get_basic(&entry, &key);
 453
 454                 dbus_message_iter_next(&entry);
 455                 dbus_message_iter_recurse(&entry, &value);
 456
 457                 switch (dbus_message_iter_get_arg_type(&value)) {
 458                 case DBUS_TYPE_STRING:
 459                         if (g_str_equal(key, "Type") == TRUE)
 460                                 dbus_message_iter_get_basic(&value, &type);
 461                         else if (g_str_equal(key, "Name") == TRUE)
 462                                 dbus_message_iter_get_basic(&value, &name);
 463                         break;
 464                 }
 465
 466                 if (type != NULL && name != NULL)
 467                         break;
 468
 469                 dbus_message_iter_next(&array);
 470         }
 471
 472         DBG("Type %s name %s", type, name);
 473
 474         if (type == NULL || name == NULL) {
 475                 err = -EOPNOTSUPP;
 476                 goto failed;
 477         }
 478
 479         ident = g_strdup_printf("%s_%s", type, name);
 480
 481         provider = connman_provider_lookup(ident);
 482
 483         if (provider == NULL) {
 484                 created = TRUE;
 485                 provider = connman_provider_create(ident);
 486                 if (provider) {
 487                         provider->name = g_strdup(name);
 488                         provider->type = g_strdup(type);
 489                 }
 490         }
 491
 492         if (provider == NULL) {
 493                 DBG("can not create provider");
 494                 err = -EOPNOTSUPP;
 495                 goto failed;
 496         }
 497         dbus_message_iter_init(msg, &iter);
 498         dbus_message_iter_recurse(&iter, &array);
 499
 500         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 501                 DBusMessageIter entry, value;
 502                 const char *key, *str;
 503
 504                 dbus_message_iter_recurse(&array, &entry);
 505                 dbus_message_iter_get_basic(&entry, &key);
 506
 507                 dbus_message_iter_next(&entry);
 508                 dbus_message_iter_recurse(&entry, &value);
 509
 510                 switch (dbus_message_iter_get_arg_type(&value)) {
 511                 case DBUS_TYPE_STRING:
 512                         dbus_message_iter_get_basic(&value, &str);
 513                         connman_provider_set_string(provider, key, str);
 514                         break;
 515                 }
 516
 517                 dbus_message_iter_next(&array);
 518         }
 519
 520         g_free(ident);
 521
 522         if (provider == NULL) {
 523                 err = -EOPNOTSUPP;
 524                 goto failed;
 525         }
 526
 527         if (created == TRUE)
 528                 provider_probe(provider);
 529
 530         provider->vpn_service =
 531                         __connman_service_create_from_provider(provider);
 532         if (provider->vpn_service == NULL) {
 533                 err = -EOPNOTSUPP;
 534                 goto failed;
 535         }
 536
 537         err = __connman_service_connect(provider->vpn_service);
 538         if (err < 0 && err != -EINPROGRESS)
 539                 goto failed;
 540
 541         service_path = __connman_service_get_path(provider->vpn_service);
 542         g_dbus_send_reply(connection, msg,
 543                                 DBUS_TYPE_OBJECT_PATH, &service_path,
 544                                                         DBUS_TYPE_INVALID);
 545         return 0;
 546
 547 failed:
 548         if (provider != NULL && created == TRUE) {
 549                 DBG("can not connect delete provider");
 550                 connman_provider_unref(provider);
 551
 552                 if (provider->vpn_service != NULL)
 553                         __connman_service_put(provider->vpn_service);
 554         }
 555
 556         return err;
 557 }
 558
 559 const char * __connman_provider_get_ident(struct connman_provider *provider)
 560 {
 561         if (provider == NULL)
 562                 return NULL;
 563
 564         return provider->identifier;
 565 }
 566
 567 int connman_provider_set_string(struct connman_provider *provider,
 568                                         const char *key, const char *value)
 569 {
 570         DBG("provider %p key %s value %s", provider, key, value);
 571
 572         if (g_str_equal(key, "Type") == TRUE) {
 573                 g_free(provider->type);
 574                 provider->type = g_strdup(value);
 575         } else if (g_str_equal(key, "Name") == TRUE) {
 576                 g_free(provider->name);
 577                 provider->name = g_strdup(value);
 578         } else if (g_str_equal(key, "Gateway") == TRUE) {
 579                 g_free(provider->element.ipv4.gateway);
 580                 provider->element.ipv4.gateway = g_strdup(value);
 581         } else if (g_str_equal(key, "Address") == TRUE) {
 582                 g_free(provider->element.ipv4.address);
 583                 provider->element.ipv4.address = g_strdup(value);
 584         } else if (g_str_equal(key, "Netmask") == TRUE) {
 585                 g_free(provider->element.ipv4.netmask);
 586                 provider->element.ipv4.netmask = g_strdup(value);
 587         } else if (g_str_equal(key, "PAC") == TRUE) {
 588                 g_free(provider->element.ipv4.pac);
 589                 provider->element.ipv4.pac = g_strdup(value);
 590         } else if (g_str_equal(key, "DNS") == TRUE) {
 591                 g_free(provider->dns);
 592                 provider->dns = g_strdup(value);
 593         } else if (g_str_equal(key, "Domain") == TRUE) {
 594                 g_free(provider->domain);
 595                 provider->domain = g_strdup(value);
 596         }
 597
 598         return connman_element_set_string(&provider->element, key, value);
 599 }
 600
 601 const char *connman_provider_get_string(struct connman_provider *provider,
 602                                                         const char *key)
 603 {
 604         DBG("provider %p key %s", provider, key);
 605
 606         if (g_str_equal(key, "Type") == TRUE)
 607                 return provider->type;
 608         else if (g_str_equal(key, "Name") == TRUE)
 609                 return provider->name;
 610
 611         return connman_element_get_string(&provider->element, key);
 612 }
 613
 614 void *connman_provider_get_data(struct connman_provider *provider)
 615 {
 616         return provider->driver_data;
 617 }
 618
 619 void connman_provider_set_data(struct connman_provider *provider, void *data)
 620 {
 621         provider->driver_data = data;
 622 }
 623
 624 void connman_provider_set_index(struct connman_provider *provider, int index)
 625 {
 626         struct connman_service *service = provider->vpn_service;
 627         struct connman_ipconfig *ipconfig;
 628
 629         DBG("");
 630
 631         ipconfig = __connman_service_get_ipconfig(service);
 632
 633         if (ipconfig == NULL) {
 634                 __connman_service_create_ipconfig(service, index);
 635
 636                 ipconfig = __connman_service_get_ipconfig(service);
 637                 if (ipconfig == NULL) {
 638                         DBG("Couldnt create ipconfig");
 639                         goto done;
 640                 }
 641         }
 642
 643         connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 644         __connman_ipconfig_set_index(ipconfig, index);
 645
 646
 647 done:
 648         provider->element.index = index;
 649 }
 650
 651 int connman_provider_get_index(struct connman_provider *provider)
 652 {
 653         return provider->element.index;
 654 }
 655
 656 static gint compare_priority(gconstpointer a, gconstpointer b)
 657 {
 658         return 0;
 659 }
 660
 661 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
 662 {
 663         struct connman_provider *provider = value;
 664
 665         if (provider->driver != NULL && provider->driver->remove)
 666                 provider->driver->remove(provider);
 667 }
 668
 669 int connman_provider_driver_register(struct connman_provider_driver *driver)
 670 {
 671         DBG("driver %p name %s", driver, driver->name);
 672
 673         driver_list = g_slist_insert_sorted(driver_list, driver,
 674                                                         compare_priority);
 675         return 0;
 676 }
 677
 678 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 679 {
 680         DBG("driver %p name %s", driver, driver->name);
 681
 682         driver_list = g_slist_remove(driver_list, driver);
 683 }
 684
 685 int __connman_provider_init(void)
 686 {
 687         DBG("");
 688
 689         connection = connman_dbus_get_connection();
 690
 691         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 692                                                 NULL, unregister_provider);
 693         return 0;
 694 }
 695
 696 void __connman_provider_cleanup(void)
 697 {
 698         DBG("");
 699
 700         g_hash_table_foreach(provider_hash, clean_provider, NULL);
 701
 702         g_hash_table_destroy(provider_hash);
 703         provider_hash = NULL;
 704
 705         dbus_connection_unref(connection);
 706 }