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