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 *host;
  45         char *dns;
  46         char *domain;
  47         struct connman_provider_driver *driver;
  48         void *driver_data;
  49 };
  50
  51 void __connman_provider_append_properties(struct connman_provider *provider,
  52                                                         DBusMessageIter *iter)
  53 {
  54         if (provider->host != NULL)
  55                 connman_dbus_dict_append_basic(iter, "Host",
  56                                         DBUS_TYPE_STRING, &provider->host);
  57
  58         if (provider->domain != NULL)
  59                 connman_dbus_dict_append_basic(iter, "Domain",
  60                                         DBUS_TYPE_STRING, &provider->domain);
  61
  62         if (provider->type != NULL)
  63                 connman_dbus_dict_append_basic(iter, "Type", DBUS_TYPE_STRING,
  64                                                  &provider->type);
  65 }
  66
  67 static struct connman_provider *connman_provider_lookup(const char *identifier)
  68 {
  69         struct connman_provider *provider = NULL;
  70
  71         provider = g_hash_table_lookup(provider_hash, identifier);
  72
  73         return provider;
  74 }
  75
  76 static int connman_provider_setup_vpn_ipv4(struct connman_provider *provider,
  77                                                 struct connman_element *element)
  78 {
  79         if (element == NULL || provider == NULL)
  80                 return -EINVAL;
  81
  82         DBG("set vpn type %d", element->type);
  83
  84         g_free(element->ipv4.address);
  85         element->ipv4.address = g_strdup(provider->element.ipv4.address);
  86
  87         g_free(element->ipv4.netmask);
  88         element->ipv4.netmask = g_strdup(provider->element.ipv4.netmask);
  89
  90         g_free(element->ipv4.gateway);
  91         element->ipv4.gateway = g_strdup(provider->element.ipv4.gateway);
  92
  93         g_free(element->ipv4.broadcast);
  94         element->ipv4.broadcast = g_strdup(provider->element.ipv4.broadcast);
  95
  96         g_free(element->ipv4.pac);
  97         element->ipv4.pac = g_strdup(provider->element.ipv4.pac);
  98
  99         return connman_element_register(element, &provider->element);
 100 }
 101
 102 struct connman_provider *connman_provider_ref(struct connman_provider *provider)
 103 {
 104         DBG("provider %p", provider);
 105
 106         if (connman_element_ref(&provider->element) == NULL)
 107                 return NULL;
 108
 109         return provider;
 110 }
 111
 112 void connman_provider_unref(struct connman_provider *provider)
 113 {
 114         DBG("provider %p", provider);
 115
 116         connman_element_unref(&provider->element);
 117 }
 118
 119 static gboolean match_driver(struct connman_provider *provider,
 120                                 struct connman_provider_driver *driver)
 121 {
 122         if (g_strcmp0(driver->name, provider->type) == 0)
 123                 return TRUE;
 124
 125         return FALSE;
 126 }
 127
 128 static int provider_probe(struct connman_provider *provider)
 129 {
 130         GSList *list;
 131
 132         DBG("provider %p name %s", provider, provider->name);
 133
 134         if (provider->driver != NULL)
 135                 return -EALREADY;
 136
 137         for (list = driver_list; list; list = list->next) {
 138                 struct connman_provider_driver *driver = list->data;
 139
 140                 if (match_driver(provider, driver) == FALSE)
 141                         continue;
 142
 143                 DBG("driver %p name %s", driver, driver->name);
 144
 145                 if (driver->probe != NULL && driver->probe(provider) == 0) {
 146                         provider->driver = driver;
 147                         break;
 148                 }
 149         }
 150
 151         if (provider->driver == NULL)
 152                 return -ENODEV;
 153
 154         return 0;
 155 }
 156
 157 int __connman_provider_disconnect(struct connman_provider *provider)
 158 {
 159         int err;
 160
 161         DBG("provider %p", provider);
 162
 163         if (provider->driver != NULL && provider->driver->disconnect != NULL)
 164                 err = provider->driver->disconnect(provider);
 165         else
 166                 return -EOPNOTSUPP;
 167
 168         __connman_service_indicate_state(provider->vpn_service,
 169                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 170         if (err < 0) {
 171                 if (err != -EINPROGRESS)
 172                         return err;
 173
 174                 return -EINPROGRESS;
 175         }
 176
 177         return 0;
 178 }
 179
 180 int __connman_provider_connect(struct connman_provider *provider)
 181 {
 182         int err;
 183
 184         DBG("provider %p", provider);
 185
 186         g_free(provider->element.ipv4.address);
 187         g_free(provider->element.ipv4.netmask);
 188         g_free(provider->element.ipv4.gateway);
 189         g_free(provider->element.ipv4.broadcast);
 190         g_free(provider->element.ipv4.pac);
 191
 192         provider->element.ipv4.address = NULL;
 193         provider->element.ipv4.netmask = NULL;
 194         provider->element.ipv4.gateway = NULL;
 195         provider->element.ipv4.broadcast = NULL;
 196         provider->element.ipv4.pac = NULL;
 197
 198         if (provider->driver != NULL && provider->driver->connect != NULL)
 199                 err = provider->driver->connect(provider);
 200         else
 201                 return -EOPNOTSUPP;
 202
 203         if (err < 0) {
 204                 if (err != -EINPROGRESS)
 205                         return err;
 206
 207                 __connman_service_indicate_state(provider->vpn_service,
 208                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 209                 return -EINPROGRESS;
 210         }
 211
 212         return 0;
 213 }
 214
 215 int __connman_provider_remove(const char *path)
 216 {
 217         struct connman_provider *provider;
 218
 219         DBG("path %s", path);
 220
 221         provider = g_hash_table_lookup(provider_hash, path);
 222         if (provider == NULL) {
 223                 DBG("patch %s not found", path);
 224                 return -ENXIO;
 225         }
 226
 227         g_hash_table_remove(provider_hash, path);
 228
 229         return 0;
 230 }
 231
 232 static int set_connected(struct connman_provider *provider,
 233                                         connman_bool_t connected)
 234 {
 235         struct connman_service *service = provider->vpn_service;
 236
 237         if (service == NULL)
 238                 return -ENODEV;
 239
 240         if (connected == TRUE) {
 241                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 242                 struct connman_element *element;
 243                 char *nameservers = NULL, *name = NULL;
 244                 const char *value, *first;
 245                 int err;
 246
 247                 __connman_service_indicate_state(provider->vpn_service,
 248                                         CONNMAN_SERVICE_STATE_CONFIGURATION);
 249
 250                 type = CONNMAN_ELEMENT_TYPE_IPV4;
 251
 252                 element = connman_element_create(NULL);
 253                 if (element == NULL)
 254                         return -ENOMEM;
 255
 256                 element->type  = type;
 257                 element->index = provider->element.index;
 258
 259                 err = connman_provider_setup_vpn_ipv4(provider, element);
 260                 if (err < 0) {
 261                         connman_element_unref(element);
 262
 263                         __connman_service_indicate_state(service,
 264                                                 CONNMAN_SERVICE_STATE_FAILURE);
 265
 266                         return err;
 267                 }
 268
 269                 __connman_service_indicate_state(service,
 270                                                 CONNMAN_SERVICE_STATE_READY);
 271
 272                 __connman_service_set_domainname(service, provider->domain);
 273
 274                 nameservers = g_strdup(provider->dns);
 275                 value = nameservers;
 276                 first = strchr(value, ' ');
 277                 __connman_service_append_nameserver(service, first);
 278                 name = connman_inet_ifname(provider->element.index);
 279                 while (value) {
 280                         char *next = strchr(value, ' ');
 281                         if (next)
 282                                 *(next++) = 0;
 283
 284                         connman_resolver_append(name, provider->domain, value);
 285                         value = next;
 286                 }
 287
 288                 g_free(nameservers);
 289                 g_free(name);
 290
 291         } else {
 292                 connman_element_unregister_children(&provider->element);
 293                 __connman_service_indicate_state(service,
 294                                                 CONNMAN_SERVICE_STATE_IDLE);
 295         }
 296
 297         return 0;
 298 }
 299
 300 int connman_provider_set_state(struct connman_provider *provider,
 301                                         enum connman_provider_state state)
 302 {
 303         if (provider == NULL || provider->vpn_service == NULL)
 304                 return -EINVAL;
 305
 306         switch (state) {
 307         case CONNMAN_PROVIDER_STATE_UNKNOWN:
 308                 return -EINVAL;
 309         case CONNMAN_PROVIDER_STATE_IDLE:
 310                 return set_connected(provider, FALSE);
 311         case CONNMAN_PROVIDER_STATE_CONNECT:
 312                 return __connman_service_indicate_state(provider->vpn_service,
 313                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 314         case CONNMAN_PROVIDER_STATE_READY:
 315                 return set_connected(provider, TRUE);
 316         case CONNMAN_PROVIDER_STATE_DISCONNECT:
 317                 return __connman_service_indicate_state(provider->vpn_service,
 318                                         CONNMAN_SERVICE_STATE_DISCONNECT);
 319         case CONNMAN_PROVIDER_STATE_FAILURE:
 320                 return __connman_service_indicate_state(provider->vpn_service,
 321                                         CONNMAN_SERVICE_STATE_FAILURE);
 322         }
 323
 324         return -EINVAL;
 325 }
 326
 327 static void unregister_provider(gpointer data)
 328 {
 329         struct connman_provider *provider = data;
 330
 331         DBG("provider %p", provider);
 332
 333         __connman_provider_disconnect(provider);
 334
 335         connman_element_unregister(&provider->element);
 336         connman_provider_unref(provider);
 337 }
 338
 339 static void provider_destruct(struct connman_element *element)
 340 {
 341         struct connman_provider *provider = element->private;
 342
 343         DBG("provider %p", provider);
 344
 345         g_free(provider->name);
 346         g_free(provider->type);
 347         g_free(provider->domain);
 348         g_free(provider->identifier);
 349         g_free(provider->dns);
 350         __connman_service_put(provider->vpn_service);
 351 }
 352
 353 static void __connman_provider_initialize(struct connman_provider *provider)
 354 {
 355         DBG("provider %p", provider);
 356
 357         __connman_element_initialize(&provider->element);
 358
 359         provider->element.private = provider;
 360         provider->element.destruct = provider_destruct;
 361
 362         provider->element.ipv4.address = NULL;
 363         provider->element.ipv4.netmask = NULL;
 364         provider->element.ipv4.gateway = NULL;
 365         provider->element.ipv4.broadcast = NULL;
 366         provider->element.ipv4.pac = NULL;
 367
 368         provider->name = NULL;
 369         provider->type = NULL;
 370         provider->dns = NULL;
 371         provider->domain = NULL;
 372         provider->identifier = NULL;
 373 }
 374
 375 static struct connman_provider *connman_provider_new(void)
 376 {
 377         struct connman_provider *provider;
 378
 379         provider = g_try_new0(struct connman_provider, 1);
 380         if (provider == NULL)
 381                 return NULL;
 382
 383         DBG("provider %p", provider);
 384         __connman_provider_initialize(provider);
 385
 386         return provider;
 387 }
 388
 389 static struct connman_provider *connman_provider_get(const char *identifier)
 390 {
 391         struct connman_provider *provider;
 392
 393         provider = g_hash_table_lookup(provider_hash, identifier);
 394         if (provider != NULL)
 395                 return provider;
 396
 397         provider = connman_provider_new();
 398         if (provider == NULL)
 399                 return NULL;
 400
 401         DBG("provider %p", provider);
 402
 403         provider->identifier = g_strdup(identifier);
 404
 405         g_hash_table_insert(provider_hash, provider->identifier, provider);
 406
 407         provider->element.name = g_strdup(identifier);
 408         connman_element_register(&provider->element, NULL);
 409
 410         return provider;
 411 }
 412
 413 static void provider_dbus_ident(char *ident)
 414 {
 415         int i, len = strlen(ident);
 416
 417         for (i = 0; i < len; i++)
 418                 if (ident[i] == '.')
 419                         ident[i] = '_';
 420 }
 421
 422 int __connman_provider_create_and_connect(DBusMessage *msg)
 423 {
 424         struct connman_provider *provider;
 425         DBusMessageIter iter, array;
 426         const char *type = NULL, *name = NULL, *service_path = NULL;
 427         const char *host = NULL, *domain = NULL;
 428         char *ident;
 429         gboolean created = FALSE;
 430         int err;
 431
 432         dbus_message_iter_init(msg, &iter);
 433         dbus_message_iter_recurse(&iter, &array);
 434
 435         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 436                 DBusMessageIter entry, value;
 437                 const char *key;
 438
 439                 dbus_message_iter_recurse(&array, &entry);
 440                 dbus_message_iter_get_basic(&entry, &key);
 441
 442                 dbus_message_iter_next(&entry);
 443                 dbus_message_iter_recurse(&entry, &value);
 444
 445                 switch (dbus_message_iter_get_arg_type(&value)) {
 446                 case DBUS_TYPE_STRING:
 447                         if (g_str_equal(key, "Type") == TRUE)
 448                                 dbus_message_iter_get_basic(&value, &type);
 449                         else if (g_str_equal(key, "Name") == TRUE)
 450                                 dbus_message_iter_get_basic(&value, &name);
 451                         else if (g_str_equal(key, "Host") == TRUE)
 452                                 dbus_message_iter_get_basic(&value, &host);
 453                         else if (g_str_equal(key, "VPN.Domain") == TRUE)
 454                                 dbus_message_iter_get_basic(&value, &domain);
 455                         break;
 456                 }
 457
 458                 dbus_message_iter_next(&array);
 459         }
 460
 461         if (host == NULL && domain == NULL) {
 462                 err = -EINVAL;
 463                 goto failed;
 464         }
 465
 466         DBG("Type %s name %s", type, name);
 467
 468         if (type == NULL || name == NULL) {
 469                 err = -EOPNOTSUPP;
 470                 goto failed;
 471         }
 472
 473         ident = g_strdup_printf("%s_%s", host, domain);
 474         provider_dbus_ident(ident);
 475
 476         DBG("ident %s", ident);
 477
 478         provider = connman_provider_lookup(ident);
 479
 480         if (provider == NULL) {
 481                 created = TRUE;
 482                 provider = connman_provider_get(ident);
 483                 if (provider) {
 484                         provider->host = g_strdup(host);
 485                         provider->domain = g_strdup(domain);
 486                         provider->name = g_strdup(name);
 487                         provider->type = g_strdup(type);
 488                 }
 489         }
 490
 491         if (provider == NULL) {
 492                 DBG("can not create provider");
 493                 err = -EOPNOTSUPP;
 494                 goto failed;
 495         }
 496         dbus_message_iter_init(msg, &iter);
 497         dbus_message_iter_recurse(&iter, &array);
 498
 499         while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_DICT_ENTRY) {
 500                 DBusMessageIter entry, value;
 501                 const char *key, *str;
 502
 503                 dbus_message_iter_recurse(&array, &entry);
 504                 dbus_message_iter_get_basic(&entry, &key);
 505
 506                 dbus_message_iter_next(&entry);
 507                 dbus_message_iter_recurse(&entry, &value);
 508
 509                 switch (dbus_message_iter_get_arg_type(&value)) {
 510                 case DBUS_TYPE_STRING:
 511                         dbus_message_iter_get_basic(&value, &str);
 512                         connman_provider_set_string(provider, key, str);
 513                         break;
 514                 }
 515
 516                 dbus_message_iter_next(&array);
 517         }
 518
 519         g_free(ident);
 520
 521         if (provider == NULL) {
 522                 err = -EOPNOTSUPP;
 523                 goto failed;
 524         }
 525
 526         if (created == TRUE)
 527                 provider_probe(provider);
 528
 529         provider->vpn_service =
 530                         __connman_service_create_from_provider(provider);
 531         if (provider->vpn_service == NULL) {
 532                 err = -EOPNOTSUPP;
 533                 goto failed;
 534         }
 535
 536         err = __connman_service_connect(provider->vpn_service);
 537         if (err < 0 && err != -EINPROGRESS)
 538                 goto failed;
 539
 540         service_path = __connman_service_get_path(provider->vpn_service);
 541         g_dbus_send_reply(connection, msg,
 542                                 DBUS_TYPE_OBJECT_PATH, &service_path,
 543                                                         DBUS_TYPE_INVALID);
 544         return 0;
 545
 546 failed:
 547         if (provider != NULL && created == TRUE) {
 548                 DBG("can not connect delete provider");
 549                 connman_provider_unref(provider);
 550
 551                 if (provider->vpn_service != NULL)
 552                         __connman_service_put(provider->vpn_service);
 553         }
 554
 555         return err;
 556 }
 557
 558 const char * __connman_provider_get_ident(struct connman_provider *provider)
 559 {
 560         if (provider == NULL)
 561                 return NULL;
 562
 563         return provider->identifier;
 564 }
 565
 566 int connman_provider_set_string(struct connman_provider *provider,
 567                                         const char *key, const char *value)
 568 {
 569         DBG("provider %p key %s value %s", provider, key, value);
 570
 571         if (g_str_equal(key, "Type") == TRUE) {
 572                 g_free(provider->type);
 573                 provider->type = g_strdup(value);
 574         } else if (g_str_equal(key, "Name") == TRUE) {
 575                 g_free(provider->name);
 576                 provider->name = g_strdup(value);
 577         } else if (g_str_equal(key, "Gateway") == TRUE) {
 578                 g_free(provider->element.ipv4.gateway);
 579                 provider->element.ipv4.gateway = g_strdup(value);
 580         } else if (g_str_equal(key, "Address") == TRUE) {
 581                 g_free(provider->element.ipv4.address);
 582                 provider->element.ipv4.address = g_strdup(value);
 583         } else if (g_str_equal(key, "Netmask") == TRUE) {
 584                 g_free(provider->element.ipv4.netmask);
 585                 provider->element.ipv4.netmask = g_strdup(value);
 586         } else if (g_str_equal(key, "PAC") == TRUE) {
 587                 g_free(provider->element.ipv4.pac);
 588                 provider->element.ipv4.pac = g_strdup(value);
 589                 __connman_service_set_proxy_autoconfig(provider->vpn_service,
 590                                                                         value);
 591         } else if (g_str_equal(key, "DNS") == TRUE) {
 592                 g_free(provider->dns);
 593                 provider->dns = g_strdup(value);
 594         } else if (g_str_equal(key, "Domain") == TRUE) {
 595                 g_free(provider->domain);
 596                 provider->domain = g_strdup(value);
 597         }
 598
 599         return connman_element_set_string(&provider->element, key, value);
 600 }
 601
 602 const char *connman_provider_get_string(struct connman_provider *provider,
 603                                                         const char *key)
 604 {
 605         DBG("provider %p key %s", provider, key);
 606
 607         if (g_str_equal(key, "Type") == TRUE)
 608                 return provider->type;
 609         else if (g_str_equal(key, "Name") == TRUE)
 610                 return provider->name;
 611
 612         return connman_element_get_string(&provider->element, key);
 613 }
 614
 615 void *connman_provider_get_data(struct connman_provider *provider)
 616 {
 617         return provider->driver_data;
 618 }
 619
 620 void connman_provider_set_data(struct connman_provider *provider, void *data)
 621 {
 622         provider->driver_data = data;
 623 }
 624
 625 void connman_provider_set_index(struct connman_provider *provider, int index)
 626 {
 627         struct connman_service *service = provider->vpn_service;
 628         struct connman_ipconfig *ipconfig;
 629
 630         DBG("");
 631
 632         ipconfig = __connman_service_get_ipconfig(service);
 633
 634         if (ipconfig == NULL) {
 635                 __connman_service_create_ipconfig(service, index);
 636
 637                 ipconfig = __connman_service_get_ipconfig(service);
 638                 if (ipconfig == NULL) {
 639                         DBG("Couldnt create ipconfig");
 640                         goto done;
 641                 }
 642         }
 643
 644         connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_FIXED);
 645         __connman_ipconfig_set_index(ipconfig, index);
 646
 647
 648 done:
 649         provider->element.index = index;
 650 }
 651
 652 int connman_provider_get_index(struct connman_provider *provider)
 653 {
 654         return provider->element.index;
 655 }
 656
 657 static gint compare_priority(gconstpointer a, gconstpointer b)
 658 {
 659         return 0;
 660 }
 661
 662 static void clean_provider(gpointer key, gpointer value, gpointer user_data)
 663 {
 664         struct connman_provider *provider = value;
 665
 666         if (provider->driver != NULL && provider->driver->remove)
 667                 provider->driver->remove(provider);
 668 }
 669
 670 int connman_provider_driver_register(struct connman_provider_driver *driver)
 671 {
 672         DBG("driver %p name %s", driver, driver->name);
 673
 674         driver_list = g_slist_insert_sorted(driver_list, driver,
 675                                                         compare_priority);
 676         return 0;
 677 }
 678
 679 void connman_provider_driver_unregister(struct connman_provider_driver *driver)
 680 {
 681         DBG("driver %p name %s", driver, driver->name);
 682
 683         driver_list = g_slist_remove(driver_list, driver);
 684 }
 685
 686 int __connman_provider_init(void)
 687 {
 688         DBG("");
 689
 690         connection = connman_dbus_get_connection();
 691
 692         provider_hash = g_hash_table_new_full(g_str_hash, g_str_equal,
 693                                                 NULL, unregister_provider);
 694         return 0;
 695 }
 696
 697 void __connman_provider_cleanup(void)
 698 {
 699         DBG("");
 700
 701         g_hash_table_foreach(provider_hash, clean_provider, NULL);
 702
 703         g_hash_table_destroy(provider_hash);
 704         provider_hash = NULL;
 705
 706         dbus_connection_unref(connection);
 707 }