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