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