git.maemo.org Git - connman/blob - src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <errno.h>
  27 #include <gdbus.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         enum connman_device_mode mode;
  35         enum connman_device_policy policy;
  36         connman_bool_t powered;
  37         connman_bool_t carrier;
  38         connman_bool_t scanning;
  39         connman_bool_t disconnected;
  40         connman_uint8_t priority;
  41         char *name;
  42         char *node;
  43         char *interface;
  44         unsigned int connections;
  45
  46         struct connman_device_driver *driver;
  47         void *driver_data;
  48
  49         connman_bool_t registered;
  50
  51         char *last_network;
  52         struct connman_network *network;
  53         GHashTable *networks;
  54 };
  55
  56 static const char *type2description(enum connman_device_type type)
  57 {
  58         switch (type) {
  59         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  60         case CONNMAN_DEVICE_TYPE_VENDOR:
  61                 break;
  62         case CONNMAN_DEVICE_TYPE_ETHERNET:
  63                 return "Ethernet";
  64         case CONNMAN_DEVICE_TYPE_WIFI:
  65                 return "Wireless";
  66         case CONNMAN_DEVICE_TYPE_WIMAX:
  67                 return "WiMAX";
  68         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  69                 return "Bluetooth";
  70         case CONNMAN_DEVICE_TYPE_HSO:
  71         case CONNMAN_DEVICE_TYPE_NOZOMI:
  72         case CONNMAN_DEVICE_TYPE_HUAWEI:
  73         case CONNMAN_DEVICE_TYPE_NOVATEL:
  74                 return "Cellular";
  75         }
  76
  77         return NULL;
  78 }
  79
  80 static const char *type2string(enum connman_device_type type)
  81 {
  82         switch (type) {
  83         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  84         case CONNMAN_DEVICE_TYPE_VENDOR:
  85                 break;
  86         case CONNMAN_DEVICE_TYPE_ETHERNET:
  87                 return "ethernet";
  88         case CONNMAN_DEVICE_TYPE_WIFI:
  89                 return "wifi";
  90         case CONNMAN_DEVICE_TYPE_WIMAX:
  91                 return "wimax";
  92         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  93                 return "bluetooth";
  94         case CONNMAN_DEVICE_TYPE_HSO:
  95         case CONNMAN_DEVICE_TYPE_HUAWEI:
  96         case CONNMAN_DEVICE_TYPE_NOZOMI:
  97         case CONNMAN_DEVICE_TYPE_NOVATEL:
  98                 return "cellular";
  99         }
 100
 101         return NULL;
 102 }
 103
 104 static const char *policy2string(enum connman_device_policy policy)
 105 {
 106         switch (policy) {
 107         case CONNMAN_DEVICE_POLICY_UNKNOWN:
 108                 break;
 109         case CONNMAN_DEVICE_POLICY_IGNORE:
 110                 return "ignore";
 111         case CONNMAN_DEVICE_POLICY_OFF:
 112                 return "off";
 113         case CONNMAN_DEVICE_POLICY_AUTO:
 114                 return "auto";
 115         case CONNMAN_DEVICE_POLICY_MANUAL:
 116                 return "manual";
 117         }
 118
 119         return NULL;
 120 }
 121
 122 static enum connman_device_policy string2policy(const char *policy)
 123 {
 124         if (g_str_equal(policy, "ignore") == TRUE)
 125                 return CONNMAN_DEVICE_POLICY_IGNORE;
 126         else if (g_str_equal(policy, "off") == TRUE)
 127                 return CONNMAN_DEVICE_POLICY_OFF;
 128         else if (g_str_equal(policy, "auto") == TRUE)
 129                 return CONNMAN_DEVICE_POLICY_AUTO;
 130         else if (g_str_equal(policy, "manual") == TRUE)
 131                 return CONNMAN_DEVICE_POLICY_MANUAL;
 132         else
 133                 return CONNMAN_DEVICE_POLICY_UNKNOWN;
 134 }
 135
 136 static int set_powered(struct connman_device *device, connman_bool_t powered)
 137 {
 138         struct connman_device_driver *driver = device->driver;
 139         int err;
 140
 141         DBG("device %p powered %d", device, powered);
 142
 143         if (!driver)
 144                 return -EINVAL;
 145
 146         if (powered == TRUE) {
 147                 if (driver->enable)
 148                         err = driver->enable(device);
 149                 else
 150                         err = -EINVAL;
 151         } else {
 152                 g_hash_table_remove_all(device->networks);
 153
 154                 if (driver->disable)
 155                         err = driver->disable(device);
 156                 else
 157                         err = -EINVAL;
 158         }
 159
 160         return err;
 161 }
 162
 163 static int set_policy(DBusConnection *connection,
 164                                 struct connman_device *device,
 165                                         enum connman_device_policy policy)
 166 {
 167         DBusMessage *signal;
 168         DBusMessageIter entry, value;
 169         const char *str, *key = "Policy";
 170         int err = 0;
 171
 172         DBG("device %p policy %d", device, policy);
 173
 174         if (device->policy == policy)
 175                 return 0;
 176
 177         switch (policy) {
 178         case CONNMAN_DEVICE_POLICY_UNKNOWN:
 179                 return -EINVAL;
 180         case CONNMAN_DEVICE_POLICY_IGNORE:
 181                 break;
 182         case CONNMAN_DEVICE_POLICY_OFF:
 183                 if (device->powered == TRUE)
 184                         err = set_powered(device, FALSE);
 185                 break;
 186         case CONNMAN_DEVICE_POLICY_AUTO:
 187         case CONNMAN_DEVICE_POLICY_MANUAL:
 188                 if (device->powered == FALSE)
 189                         err = set_powered(device, TRUE);
 190                 break;
 191         }
 192
 193         if (err < 0)
 194                 return err;
 195
 196         device->policy = policy;
 197
 198         signal = dbus_message_new_signal(device->element.path,
 199                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 200         if (signal == NULL)
 201                 return 0;
 202
 203         dbus_message_iter_init_append(signal, &entry);
 204
 205         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 206
 207         str = policy2string(policy);
 208
 209         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 210                                         DBUS_TYPE_STRING_AS_STRING, &value);
 211         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &str);
 212         dbus_message_iter_close_container(&entry, &value);
 213
 214         g_dbus_send_message(connection, signal);
 215
 216         return 0;
 217 }
 218
 219 static void append_networks(struct connman_device *device,
 220                                                 DBusMessageIter *entry)
 221 {
 222         DBusMessageIter value, iter;
 223         const char *key = "Networks";
 224
 225         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 226
 227         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 228                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 229                                                                 &value);
 230
 231         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 232                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 233         __connman_element_list((struct connman_element *) device,
 234                                         CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 235         dbus_message_iter_close_container(&value, &iter);
 236
 237         dbus_message_iter_close_container(entry, &value);
 238 }
 239
 240 static DBusMessage *get_properties(DBusConnection *conn,
 241                                         DBusMessage *msg, void *data)
 242 {
 243         struct connman_device *device = data;
 244         DBusMessage *reply;
 245         DBusMessageIter array, dict, entry;
 246         const char *str;
 247
 248         DBG("conn %p", conn);
 249
 250         if (__connman_security_check_privilege(msg,
 251                                         CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
 252                 return __connman_error_permission_denied(msg);
 253
 254         reply = dbus_message_new_method_return(msg);
 255         if (reply == NULL)
 256                 return NULL;
 257
 258         dbus_message_iter_init_append(reply, &array);
 259
 260         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 261                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 262                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 263                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 264
 265         str = type2description(device->type);
 266         if (str != NULL && device->interface != NULL) {
 267                 char *name = g_strdup_printf("%s (%s)", str, device->interface);
 268                 if (name != NULL)
 269                         connman_dbus_dict_append_variant(&dict, "Name",
 270                                                 DBUS_TYPE_STRING, &name);
 271                 g_free(name);
 272         }
 273
 274         str = type2string(device->type);
 275         if (str != NULL)
 276                 connman_dbus_dict_append_variant(&dict, "Type",
 277                                                 DBUS_TYPE_STRING, &str);
 278
 279         if (device->interface != NULL)
 280                 connman_dbus_dict_append_variant(&dict, "Interface",
 281                                         DBUS_TYPE_STRING, &device->interface);
 282
 283         str = policy2string(device->policy);
 284         if (str != NULL)
 285                 connman_dbus_dict_append_variant(&dict, "Policy",
 286                                                 DBUS_TYPE_STRING, &str);
 287
 288         if (device->priority > 0)
 289                 connman_dbus_dict_append_variant(&dict, "Priority",
 290                                         DBUS_TYPE_BYTE, &device->priority);
 291
 292         connman_dbus_dict_append_variant(&dict, "Powered",
 293                                         DBUS_TYPE_BOOLEAN, &device->powered);
 294
 295         if (device->driver && device->driver->scan)
 296                 connman_dbus_dict_append_variant(&dict, "Scanning",
 297                                         DBUS_TYPE_BOOLEAN, &device->scanning);
 298
 299         switch (device->mode) {
 300         case CONNMAN_DEVICE_MODE_UNKNOWN:
 301                 break;
 302         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 303                 __connman_element_append_ipv4(&device->element, &dict);
 304                 break;
 305         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 306         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 307                 dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
 308                                                                 NULL, &entry);
 309                 append_networks(device, &entry);
 310                 dbus_message_iter_close_container(&dict, &entry);
 311                 break;
 312         }
 313
 314         dbus_message_iter_close_container(&array, &dict);
 315
 316         return reply;
 317 }
 318
 319 static DBusMessage *set_property(DBusConnection *conn,
 320                                         DBusMessage *msg, void *data)
 321 {
 322         struct connman_device *device = data;
 323         DBusMessageIter iter, value;
 324         const char *name;
 325         int type;
 326
 327         DBG("conn %p", conn);
 328
 329         if (dbus_message_iter_init(msg, &iter) == FALSE)
 330                 return __connman_error_invalid_arguments(msg);
 331
 332         dbus_message_iter_get_basic(&iter, &name);
 333         dbus_message_iter_next(&iter);
 334         dbus_message_iter_recurse(&iter, &value);
 335
 336         if (__connman_security_check_privilege(msg,
 337                                         CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
 338                 return __connman_error_permission_denied(msg);
 339
 340         type = dbus_message_iter_get_arg_type(&value);
 341
 342         if (g_str_equal(name, "Powered") == TRUE) {
 343                 connman_bool_t powered;
 344                 int err;
 345
 346                 if (type != DBUS_TYPE_BOOLEAN)
 347                         return __connman_error_invalid_arguments(msg);
 348
 349                 dbus_message_iter_get_basic(&value, &powered);
 350
 351                 if (device->powered == powered)
 352                         return __connman_error_invalid_arguments(msg);
 353
 354                 err = set_powered(device, powered);
 355                 if (err < 0 && err != -EINPROGRESS)
 356                         return __connman_error_failed(msg);
 357         } else if (g_str_equal(name, "Policy") == TRUE) {
 358                 enum connman_device_policy policy;
 359                 const char *str;
 360                 int err;
 361
 362                 if (type != DBUS_TYPE_STRING)
 363                         return __connman_error_invalid_arguments(msg);
 364
 365                 dbus_message_iter_get_basic(&value, &str);
 366                 policy = string2policy(str);
 367                 if (policy == CONNMAN_DEVICE_POLICY_UNKNOWN)
 368                         return __connman_error_invalid_arguments(msg);
 369
 370                 err = set_policy(conn, device, policy);
 371                 if (err < 0)
 372                         return __connman_error_failed(msg);
 373         } else if (g_str_equal(name, "Priority") == TRUE) {
 374                 connman_uint8_t priority;
 375
 376                 if (type != DBUS_TYPE_BYTE)
 377                         return __connman_error_invalid_arguments(msg);
 378
 379                 dbus_message_iter_get_basic(&value, &priority);
 380
 381                 device->priority = priority;
 382         } else if (g_str_has_prefix(name, "IPv4") == TRUE) {
 383                 switch (device->mode) {
 384                 case CONNMAN_DEVICE_MODE_UNKNOWN:
 385                 case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 386                 case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 387                         return __connman_error_invalid_arguments(msg);
 388                 case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 389                         __connman_element_set_ipv4(&device->element,
 390                                                                 name, &value);
 391                         break;
 392                 }
 393         }
 394
 395         __connman_storage_save_device(device);
 396
 397         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 398 }
 399
 400 static DBusMessage *create_network(DBusConnection *conn,
 401                                         DBusMessage *msg, void *data)
 402 {
 403         DBG("conn %p", conn);
 404
 405         if (__connman_security_check_privilege(msg,
 406                                         CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
 407                 return __connman_error_permission_denied(msg);
 408
 409         return __connman_error_invalid_arguments(msg);
 410 }
 411
 412 static DBusMessage *remove_network(DBusConnection *conn,
 413                                         DBusMessage *msg, void *data)
 414 {
 415         DBG("conn %p", conn);
 416
 417         if (__connman_security_check_privilege(msg,
 418                                         CONNMAN_SECURITY_PRIVILEGE_MODIFY) < 0)
 419                 return __connman_error_permission_denied(msg);
 420
 421         return __connman_error_invalid_arguments(msg);
 422 }
 423
 424 static DBusMessage *propose_scan(DBusConnection *conn,
 425                                         DBusMessage *msg, void *data)
 426 {
 427         struct connman_device *device = data;
 428         int err;
 429
 430         DBG("conn %p", conn);
 431
 432         switch (device->mode) {
 433         case CONNMAN_DEVICE_MODE_UNKNOWN:
 434         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 435                 return __connman_error_not_supported(msg);
 436         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 437         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 438                 break;
 439         }
 440
 441         if (!device->driver || !device->driver->scan)
 442                 return __connman_error_not_supported(msg);
 443
 444         if (device->powered == FALSE)
 445                 return __connman_error_failed(msg);
 446
 447         err = device->driver->scan(device);
 448         if (err < 0)
 449                 return __connman_error_failed(msg);
 450
 451         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 452 }
 453
 454 static GDBusMethodTable device_methods[] = {
 455         { "GetProperties", "",      "a{sv}", get_properties },
 456         { "SetProperty",   "sv",    "",      set_property   },
 457         { "CreateNetwork", "a{sv}", "o",     create_network },
 458         { "RemoveNetwork", "o",     "",      remove_network },
 459         { "ProposeScan",   "",      "",      propose_scan   },
 460         { },
 461 };
 462
 463 static GDBusSignalTable device_signals[] = {
 464         { "PropertyChanged", "sv" },
 465         { },
 466 };
 467
 468 static DBusConnection *connection;
 469
 470 static void append_devices(DBusMessageIter *entry)
 471 {
 472         DBusMessageIter value, iter;
 473         const char *key = "Devices";
 474
 475         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 476
 477         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 478                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 479                                                                 &value);
 480
 481         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 482                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 483         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
 484         dbus_message_iter_close_container(&value, &iter);
 485
 486         dbus_message_iter_close_container(entry, &value);
 487 }
 488
 489 static void emit_devices_signal(void)
 490 {
 491         DBusMessage *signal;
 492         DBusMessageIter entry;
 493
 494         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 495                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
 496         if (signal == NULL)
 497                 return;
 498
 499         dbus_message_iter_init_append(signal, &entry);
 500
 501         append_devices(&entry);
 502
 503         g_dbus_send_message(connection, signal);
 504 }
 505
 506 static int register_interface(struct connman_element *element)
 507 {
 508         struct connman_device *device = element->device;
 509
 510         DBG("element %p name %s", element, element->name);
 511
 512         if (g_dbus_register_interface(connection, element->path,
 513                                         CONNMAN_DEVICE_INTERFACE,
 514                                         device_methods, device_signals,
 515                                         NULL, device, NULL) == FALSE) {
 516                 connman_error("Failed to register %s device", element->path);
 517                 return -EIO;
 518         }
 519
 520         device->registered = TRUE;
 521
 522         emit_devices_signal();
 523
 524         return 0;
 525 }
 526
 527 static void unregister_interface(struct connman_element *element)
 528 {
 529         struct connman_device *device = element->device;
 530
 531         DBG("element %p name %s", element, element->name);
 532
 533         device->registered = FALSE;
 534
 535         emit_devices_signal();
 536
 537         g_dbus_unregister_interface(connection, element->path,
 538                                                 CONNMAN_DEVICE_INTERFACE);
 539 }
 540
 541 static void device_enable(struct connman_device *device)
 542 {
 543         DBG("device %p", device);
 544
 545         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE ||
 546                                 device->policy == CONNMAN_DEVICE_POLICY_OFF)
 547                 return;
 548
 549         if (device->powered == TRUE)
 550                 return;
 551
 552         if (device->driver->enable)
 553                 device->driver->enable(device);
 554 }
 555
 556 static void device_disable(struct connman_device *device)
 557 {
 558         DBG("device %p", device);
 559
 560         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE)
 561                 return;
 562
 563         if (device->powered == FALSE)
 564                 return;
 565
 566         g_hash_table_remove_all(device->networks);
 567
 568         if (device->driver->disable)
 569                 device->driver->disable(device);
 570 }
 571
 572 static int setup_device(struct connman_device *device)
 573 {
 574         int err;
 575
 576         DBG("device %p", device);
 577
 578         err = register_interface(&device->element);
 579         if (err < 0) {
 580                 if (device->driver->remove)
 581                         device->driver->remove(device);
 582                 device->driver = NULL;
 583                 return err;
 584         }
 585
 586         device_enable(device);
 587
 588         return 0;
 589 }
 590
 591 static void probe_driver(struct connman_element *element, gpointer user_data)
 592 {
 593         struct connman_device_driver *driver = user_data;
 594
 595         DBG("element %p name %s", element, element->name);
 596
 597         if (element->device == NULL)
 598                 return;
 599
 600         if (element->device->driver != NULL)
 601                 return;
 602
 603         if (driver->probe(element->device) < 0)
 604                 return;
 605
 606         element->device->driver = driver;
 607
 608         setup_device(element->device);
 609 }
 610
 611 static void remove_device(struct connman_device *device)
 612 {
 613         DBG("device %p", device);
 614
 615         device_disable(device);
 616
 617         unregister_interface(&device->element);
 618
 619         if (device->driver->remove)
 620                 device->driver->remove(device);
 621
 622         device->driver = NULL;
 623 }
 624
 625 static void remove_driver(struct connman_element *element, gpointer user_data)
 626 {
 627         struct connman_device_driver *driver = user_data;
 628
 629         DBG("element %p name %s", element, element->name);
 630
 631         if (element->device == NULL)
 632                 return;
 633
 634         if (element->device->driver == driver)
 635                 remove_device(element->device);
 636 }
 637
 638 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 639 {
 640         if (device == NULL || device->driver == NULL)
 641                 return FALSE;
 642
 643         return device->registered;
 644 }
 645
 646 static GSList *driver_list = NULL;
 647
 648 static gint compare_priority(gconstpointer a, gconstpointer b)
 649 {
 650         const struct connman_device_driver *driver1 = a;
 651         const struct connman_device_driver *driver2 = b;
 652
 653         return driver2->priority - driver1->priority;
 654 }
 655
 656 /**
 657  * connman_device_driver_register:
 658  * @driver: device driver definition
 659  *
 660  * Register a new device driver
 661  *
 662  * Returns: %0 on success
 663  */
 664 int connman_device_driver_register(struct connman_device_driver *driver)
 665 {
 666         DBG("driver %p name %s", driver, driver->name);
 667
 668         driver_list = g_slist_insert_sorted(driver_list, driver,
 669                                                         compare_priority);
 670
 671         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 672                                                 probe_driver, driver);
 673
 674         return 0;
 675 }
 676
 677 /**
 678  * connman_device_driver_unregister:
 679  * @driver: device driver definition
 680  *
 681  * Remove a previously registered device driver
 682  */
 683 void connman_device_driver_unregister(struct connman_device_driver *driver)
 684 {
 685         DBG("driver %p name %s", driver, driver->name);
 686
 687         driver_list = g_slist_remove(driver_list, driver);
 688
 689         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 690                                                 remove_driver, driver);
 691 }
 692
 693 static void unregister_network(gpointer data)
 694 {
 695         struct connman_network *network = data;
 696
 697         DBG("network %p", network);
 698
 699         connman_element_unregister((struct connman_element *) network);
 700
 701         connman_network_unref(network);
 702 }
 703
 704 static void device_destruct(struct connman_element *element)
 705 {
 706         struct connman_device *device = element->device;
 707
 708         DBG("element %p name %s", element, element->name);
 709
 710         g_free(device->node);
 711         g_free(device->name);
 712         g_free(device->interface);
 713
 714         g_free(device->last_network);
 715
 716         g_hash_table_destroy(device->networks);
 717         device->networks = NULL;
 718 }
 719
 720 /**
 721  * connman_device_create:
 722  * @node: device node name (for example an address)
 723  * @type: device type
 724  *
 725  * Allocate a new device of given #type and assign the #node name to it.
 726  *
 727  * Returns: a newly-allocated #connman_device structure
 728  */
 729 struct connman_device *connman_device_create(const char *node,
 730                                                 enum connman_device_type type)
 731 {
 732         struct connman_device *device;
 733         const char *str;
 734
 735         DBG("node %s type %d", node, type);
 736
 737         device = g_try_new0(struct connman_device, 1);
 738         if (device == NULL)
 739                 return NULL;
 740
 741         DBG("device %p", device);
 742
 743         __connman_element_initialize(&device->element);
 744
 745         device->element.name = g_strdup(node);
 746         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 747
 748         device->element.device = device;
 749         device->element.destruct = device_destruct;
 750
 751         str = type2string(type);
 752         if (str != NULL)
 753                 connman_element_set_static_property(&device->element,
 754                                         "Type", DBUS_TYPE_STRING, &str);
 755
 756         device->element.ipv4.method = CONNMAN_IPV4_METHOD_DHCP;
 757
 758         device->type   = type;
 759         device->mode   = CONNMAN_DEVICE_MODE_UNKNOWN;
 760         device->policy = CONNMAN_DEVICE_POLICY_AUTO;
 761
 762         switch (type) {
 763         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 764         case CONNMAN_DEVICE_TYPE_VENDOR:
 765                 device->priority = 0;
 766                 break;
 767         case CONNMAN_DEVICE_TYPE_ETHERNET:
 768         case CONNMAN_DEVICE_TYPE_WIFI:
 769                 device->priority = 100;
 770                 break;
 771         case CONNMAN_DEVICE_TYPE_WIMAX:
 772                 device->priority = 20;
 773                 break;
 774         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 775                 device->priority = 50;
 776                 break;
 777         case CONNMAN_DEVICE_TYPE_HSO:
 778         case CONNMAN_DEVICE_TYPE_NOZOMI:
 779         case CONNMAN_DEVICE_TYPE_HUAWEI:
 780         case CONNMAN_DEVICE_TYPE_NOVATEL:
 781                 device->priority = 60;
 782                 break;
 783         }
 784
 785         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 786                                                 g_free, unregister_network);
 787
 788         return device;
 789 }
 790
 791 /**
 792  * connman_device_ref:
 793  * @device: device structure
 794  *
 795  * Increase reference counter of device
 796  */
 797 struct connman_device *connman_device_ref(struct connman_device *device)
 798 {
 799         if (connman_element_ref(&device->element) == NULL)
 800                 return NULL;
 801
 802         return device;
 803 }
 804
 805 /**
 806  * connman_device_unref:
 807  * @device: device structure
 808  *
 809  * Decrease reference counter of device
 810  */
 811 void connman_device_unref(struct connman_device *device)
 812 {
 813         connman_element_unref(&device->element);
 814 }
 815
 816 /**
 817  * connman_device_get_name:
 818  * @device: device structure
 819  *
 820  * Get unique name of device
 821  */
 822 const char *connman_device_get_name(struct connman_device *device)
 823 {
 824         return device->element.name;
 825 }
 826
 827 /**
 828  * connman_device_get_path:
 829  * @device: device structure
 830  *
 831  * Get path name of device
 832  */
 833 const char *connman_device_get_path(struct connman_device *device)
 834 {
 835         return device->element.path;
 836 }
 837
 838 /**
 839  * connman_device_set_index:
 840  * @device: device structure
 841  * @index: index number
 842  *
 843  * Set index number of device
 844  */
 845 void connman_device_set_index(struct connman_device *device, int index)
 846 {
 847         device->element.index = index;
 848 }
 849
 850 /**
 851  * connman_device_get_index:
 852  * @device: device structure
 853  *
 854  * Get index number of device
 855  */
 856 int connman_device_get_index(struct connman_device *device)
 857 {
 858         return device->element.index;
 859 }
 860
 861 /**
 862  * connman_device_set_interface:
 863  * @device: device structure
 864  * @interface: interface name
 865  *
 866  * Set interface name of device
 867  */
 868 void connman_device_set_interface(struct connman_device *device,
 869                                                         const char *interface)
 870 {
 871         g_free(device->element.devname);
 872         device->element.devname = g_strdup(interface);
 873
 874         g_free(device->interface);
 875         device->interface = g_strdup(interface);
 876 }
 877
 878 /**
 879  * connman_device_get_interface:
 880  * @device: device structure
 881  *
 882  * Get interface name of device
 883  */
 884 const char *connman_device_get_interface(struct connman_device *device)
 885 {
 886         return device->interface;
 887 }
 888
 889 /**
 890  * connman_device_set_policy:
 891  * @device: device structure
 892  * @policy: power and connection policy
 893  *
 894  * Change power and connection policy of device
 895  */
 896 void connman_device_set_policy(struct connman_device *device,
 897                                         enum connman_device_policy policy)
 898 {
 899         device->policy = policy;
 900 }
 901
 902 /**
 903  * connman_device_set_mode:
 904  * @device: device structure
 905  * @mode: network mode
 906  *
 907  * Change network mode of device
 908  */
 909 void connman_device_set_mode(struct connman_device *device,
 910                                                 enum connman_device_mode mode)
 911 {
 912         device->mode = mode;
 913 }
 914
 915 /**
 916  * connman_device_get_mode:
 917  * @device: device structure
 918  *
 919  * Get network mode of device
 920  */
 921 enum connman_device_mode connman_device_get_mode(struct connman_device *device)
 922 {
 923         return device->mode;
 924 }
 925
 926 /**
 927  * connman_device_set_powered:
 928  * @device: device structure
 929  * @powered: powered state
 930  *
 931  * Change power state of device
 932  */
 933 int connman_device_set_powered(struct connman_device *device,
 934                                                 connman_bool_t powered)
 935 {
 936         DBusMessage *signal;
 937         DBusMessageIter entry, value;
 938         const char *key = "Powered";
 939
 940         DBG("driver %p powered %d", device, powered);
 941
 942         if (device->powered == powered)
 943                 return -EALREADY;
 944
 945         device->powered = powered;
 946
 947         signal = dbus_message_new_signal(device->element.path,
 948                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 949         if (signal == NULL)
 950                 return 0;
 951
 952         dbus_message_iter_init_append(signal, &entry);
 953
 954         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 955
 956         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 957                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 958         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &powered);
 959         dbus_message_iter_close_container(&entry, &value);
 960
 961         g_dbus_send_message(connection, signal);
 962
 963         if (powered == FALSE)
 964                 return 0;
 965
 966         if (device->policy != CONNMAN_DEVICE_POLICY_AUTO)
 967                 return 0;
 968
 969         if (device->driver->scan)
 970                 device->driver->scan(device);
 971
 972         return 0;
 973 }
 974
 975 /**
 976  * connman_device_set_carrier:
 977  * @device: device structure
 978  * @carrier: carrier state
 979  *
 980  * Change carrier state of device (only for device without scanning)
 981  */
 982 int connman_device_set_carrier(struct connman_device *device,
 983                                                 connman_bool_t carrier)
 984 {
 985         DBG("driver %p carrier %d", device, carrier);
 986
 987         switch (device->mode) {
 988         case CONNMAN_DEVICE_MODE_UNKNOWN:
 989         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 990         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 991                 return -EINVAL;
 992         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 993                 break;
 994         }
 995
 996         if (device->carrier == carrier)
 997                 return -EALREADY;
 998
 999         device->carrier = carrier;
1000
1001         if (carrier == TRUE) {
1002                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
1003                 struct connman_element *element;
1004
1005                 switch (device->element.ipv4.method) {
1006                 case CONNMAN_IPV4_METHOD_UNKNOWN:
1007                 case CONNMAN_IPV4_METHOD_OFF:
1008                         return 0;
1009                 case CONNMAN_IPV4_METHOD_STATIC:
1010                         type = CONNMAN_ELEMENT_TYPE_IPV4;
1011                         break;
1012                 case CONNMAN_IPV4_METHOD_DHCP:
1013                         type = CONNMAN_ELEMENT_TYPE_DHCP;
1014                         break;
1015                 }
1016
1017                 element = connman_element_create(NULL);
1018                 if (element != NULL) {
1019                         element->type  = type;
1020                         element->index = device->element.index;
1021
1022                         if (connman_element_register(element,
1023                                                         &device->element) < 0)
1024                                 connman_element_unref(element);
1025                 }
1026         } else
1027                 connman_element_unregister_children(&device->element);
1028
1029         return 0;
1030 }
1031
1032 void __connman_device_disconnect(struct connman_device *device)
1033 {
1034         GHashTableIter iter;
1035         gpointer key, value;
1036
1037         DBG("device %p", device);
1038
1039         g_hash_table_iter_init(&iter, device->networks);
1040
1041         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
1042                 struct connman_network *network = value;
1043
1044                 if (connman_network_get_connected(network) == TRUE)
1045                         __connman_network_disconnect(network);
1046         }
1047 }
1048
1049 static void connect_known_network(struct connman_device *device)
1050 {
1051         struct connman_network *network = NULL;
1052         GHashTableIter iter;
1053         gpointer key, value;
1054         unsigned int count = 0;
1055
1056         DBG("device %p", device);
1057
1058         g_hash_table_iter_init(&iter, device->networks);
1059
1060         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
1061                 connman_uint8_t old_priority, new_priority;
1062                 connman_uint8_t old_strength, new_strength;
1063                 const char *name;
1064
1065                 count++;
1066
1067                 name = connman_network_get_string(value, "Name");
1068                 if (name != NULL && device->last_network != NULL) {
1069                         if (g_str_equal(name, device->last_network) == TRUE) {
1070                                 network = value;
1071                                 break;
1072                         }
1073                 }
1074
1075                 if (connman_network_get_remember(value) == FALSE)
1076                         continue;
1077
1078                 if (network == NULL) {
1079                         network = value;
1080                         continue;
1081                 }
1082
1083                 old_priority = connman_network_get_uint8(network, "Priority");
1084                 new_priority = connman_network_get_uint8(value, "Priority");
1085
1086                 if (new_priority != old_priority) {
1087                         if (new_priority > old_priority)
1088                                 network = value;
1089                         continue;
1090                 }
1091
1092                 old_strength = connman_network_get_uint8(network, "Strength");
1093                 new_strength = connman_network_get_uint8(value, "Strength");
1094
1095                 if (new_strength > old_strength)
1096                         network = value;
1097         }
1098
1099         if (network != NULL) {
1100                 int err;
1101
1102                 err = connman_network_connect(network);
1103                 if (err == 0 || err == -EINPROGRESS)
1104                         return;
1105         }
1106
1107         if (count > 0)
1108                 return;
1109
1110         if (device->driver && device->driver->scan)
1111                 device->driver->scan(device);
1112 }
1113
1114 static void mark_network_unavailable(gpointer key, gpointer value,
1115                                                         gpointer user_data)
1116 {
1117         struct connman_network *network = value;
1118
1119         if (connman_network_get_remember(network) == TRUE)
1120                 return;
1121
1122         connman_network_set_available(network, FALSE);
1123 }
1124
1125 static gboolean remove_unavailable_network(gpointer key, gpointer value,
1126                                                         gpointer user_data)
1127 {
1128         struct connman_network *network = value;
1129
1130         if (connman_network_get_remember(network) == TRUE)
1131                 return FALSE;
1132
1133         if (connman_network_get_available(network) == TRUE)
1134                 return FALSE;
1135
1136         return TRUE;
1137 }
1138
1139 /**
1140  * connman_device_set_scanning:
1141  * @device: device structure
1142  * @scanning: scanning state
1143  *
1144  * Change scanning state of device
1145  */
1146 int connman_device_set_scanning(struct connman_device *device,
1147                                                 connman_bool_t scanning)
1148 {
1149         DBusMessage *signal;
1150         DBusMessageIter entry, value;
1151         const char *key = "Scanning";
1152
1153         DBG("driver %p scanning %d", device, scanning);
1154
1155         if (!device->driver || !device->driver->scan)
1156                 return -EINVAL;
1157
1158         if (device->scanning == scanning)
1159                 return -EALREADY;
1160
1161         device->scanning = scanning;
1162
1163         signal = dbus_message_new_signal(device->element.path,
1164                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
1165         if (signal == NULL)
1166                 return 0;
1167
1168         dbus_message_iter_init_append(signal, &entry);
1169
1170         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
1171
1172         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
1173                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
1174         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &scanning);
1175         dbus_message_iter_close_container(&entry, &value);
1176
1177         g_dbus_send_message(connection, signal);
1178
1179         if (scanning == TRUE) {
1180                 g_hash_table_foreach(device->networks,
1181                                         mark_network_unavailable, NULL);
1182                 return 0;
1183         }
1184
1185         g_hash_table_foreach_remove(device->networks,
1186                                         remove_unavailable_network, NULL);
1187
1188         if (device->connections > 0)
1189                 return 0;
1190
1191         if (device->disconnected == TRUE)
1192                 return 0;
1193
1194         if (device->policy != CONNMAN_DEVICE_POLICY_AUTO)
1195                 return 0;
1196
1197         connect_known_network(device);
1198
1199         return 0;
1200 }
1201
1202 /**
1203  * connman_device_set_disconnected:
1204  * @device: device structure
1205  * @disconnected: disconnected state
1206  *
1207  * Change disconnected state of device (only for device with networks)
1208  */
1209 int connman_device_set_disconnected(struct connman_device *device,
1210                                                 connman_bool_t disconnected)
1211 {
1212         DBG("driver %p disconnected %d", device, disconnected);
1213
1214         switch (device->mode) {
1215         case CONNMAN_DEVICE_MODE_UNKNOWN:
1216         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
1217                 return -EINVAL;
1218         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
1219         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
1220                 break;
1221         }
1222
1223         if (device->disconnected == disconnected)
1224                 return -EALREADY;
1225
1226         device->disconnected = disconnected;
1227
1228         return 0;
1229 }
1230
1231 /**
1232  * connman_device_set_string:
1233  * @device: device structure
1234  * @key: unique identifier
1235  * @value: string value
1236  *
1237  * Set string value for specific key
1238  */
1239 int connman_device_set_string(struct connman_device *device,
1240                                         const char *key, const char *value)
1241 {
1242         DBG("device %p key %s value %s", device, key, value);
1243
1244         if (g_str_equal(key, "Name") == TRUE) {
1245                 g_free(device->name);
1246                 device->name = g_strdup(value);
1247         } else if (g_str_equal(key, "Node") == TRUE) {
1248                 g_free(device->node);
1249                 device->node = g_strdup(value);
1250         }
1251
1252         return 0;
1253 }
1254
1255 /**
1256  * connman_device_get_string:
1257  * @device: device structure
1258  * @key: unique identifier
1259  *
1260  * Get string value for specific key
1261  */
1262 const char *connman_device_get_string(struct connman_device *device,
1263                                                         const char *key)
1264 {
1265         DBG("device %p key %s", device, key);
1266
1267         if (g_str_equal(key, "Name") == TRUE)
1268                 return device->name;
1269         else if (g_str_equal(key, "Node") == TRUE)
1270                 return device->node;
1271
1272         return NULL;
1273 }
1274
1275 static void set_offlinemode(struct connman_element *element, gpointer user_data)
1276 {
1277         struct connman_device *device = element->device;
1278         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
1279         connman_bool_t powered;
1280
1281         DBG("element %p name %s", element, element->name);
1282
1283         if (device == NULL)
1284                 return;
1285
1286         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1287
1288         if (device->powered == powered)
1289                 return;
1290
1291         set_powered(device, powered);
1292 }
1293
1294 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1295 {
1296         DBG("offlinmode %d", offlinemode);
1297
1298         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
1299                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
1300
1301         return 0;
1302 }
1303
1304 void __connman_device_increase_connections(struct connman_device *device)
1305 {
1306         device->connections++;
1307 }
1308
1309 void __connman_device_decrease_connections(struct connman_device *device)
1310 {
1311         device->connections--;
1312 }
1313
1314 /**
1315  * connman_device_add_network:
1316  * @device: device structure
1317  * @network: network structure
1318  *
1319  * Add new network to the device
1320  */
1321 int connman_device_add_network(struct connman_device *device,
1322                                         struct connman_network *network)
1323 {
1324         const char *identifier = connman_network_get_identifier(network);
1325         int err;
1326
1327         DBG("device %p network %p", device, network);
1328
1329         switch (device->mode) {
1330         case CONNMAN_DEVICE_MODE_UNKNOWN:
1331         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
1332                 return -EINVAL;
1333         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
1334         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
1335                 break;
1336         }
1337
1338         __connman_network_set_device(network, device);
1339
1340         __connman_storage_load_network(network);
1341
1342         err = connman_element_register((struct connman_element *) network,
1343                                                         &device->element);
1344         if (err < 0) {
1345                 __connman_network_set_device(network, NULL);
1346                 return err;
1347         }
1348
1349         g_hash_table_insert(device->networks, g_strdup(identifier),
1350                                                                 network);
1351
1352         return 0;
1353 }
1354
1355 /**
1356  * connman_device_get_network:
1357  * @device: device structure
1358  * @identifier: network identifier
1359  *
1360  * Get network for given identifier
1361  */
1362 struct connman_network *connman_device_get_network(struct connman_device *device,
1363                                                         const char *identifier)
1364 {
1365         DBG("device %p identifier %s", device, identifier);
1366
1367         return g_hash_table_lookup(device->networks, identifier);
1368 }
1369
1370 /**
1371  * connman_device_remove_network:
1372  * @device: device structure
1373  * @identifier: network identifier
1374  *
1375  * Remove network for given identifier
1376  */
1377 int connman_device_remove_network(struct connman_device *device,
1378                                                         const char *identifier)
1379 {
1380         DBG("device %p identifier %s", device, identifier);
1381
1382         g_hash_table_remove(device->networks, identifier);
1383
1384         return 0;
1385 }
1386
1387 void __connman_device_set_network(struct connman_device *device,
1388                                         struct connman_network *network)
1389 {
1390         const char *name;
1391
1392         if (network != NULL) {
1393                 name = connman_network_get_string(network, "Name");
1394                 device->last_network = g_strdup(name);
1395         }
1396
1397         device->network = network;
1398 }
1399
1400 /**
1401  * connman_device_register:
1402  * @device: device structure
1403  *
1404  * Register device with the system
1405  */
1406 int connman_device_register(struct connman_device *device)
1407 {
1408         __connman_storage_load_device(device);
1409
1410         switch (device->mode) {
1411         case CONNMAN_DEVICE_MODE_UNKNOWN:
1412         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
1413                 break;
1414         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
1415         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
1416                 __connman_storage_init_network(device);
1417                 break;
1418         }
1419
1420         return connman_element_register(&device->element, NULL);
1421 }
1422
1423 /**
1424  * connman_device_unregister:
1425  * @device: device structure
1426  *
1427  * Unregister device with the system
1428  */
1429 void connman_device_unregister(struct connman_device *device)
1430 {
1431         __connman_storage_save_device(device);
1432
1433         connman_element_unregister(&device->element);
1434 }
1435
1436 /**
1437  * connman_device_get_data:
1438  * @device: device structure
1439  *
1440  * Get private device data pointer
1441  */
1442 void *connman_device_get_data(struct connman_device *device)
1443 {
1444         return device->driver_data;
1445 }
1446
1447 /**
1448  * connman_device_set_data:
1449  * @device: device structure
1450  * @data: data pointer
1451  *
1452  * Set private device data pointer
1453  */
1454 void connman_device_set_data(struct connman_device *device, void *data)
1455 {
1456         device->driver_data = data;
1457 }
1458
1459 static gboolean match_driver(struct connman_device *device,
1460                                         struct connman_device_driver *driver)
1461 {
1462         if (device->type == driver->type ||
1463                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1464                 return TRUE;
1465
1466         return FALSE;
1467 }
1468
1469 static int device_probe(struct connman_element *element)
1470 {
1471         struct connman_device *device = element->device;
1472         GSList *list;
1473
1474         DBG("element %p name %s", element, element->name);
1475
1476         if (device == NULL)
1477                 return -ENODEV;
1478
1479         if (device->driver != NULL)
1480                 return -EALREADY;
1481
1482         for (list = driver_list; list; list = list->next) {
1483                 struct connman_device_driver *driver = list->data;
1484
1485                 if (match_driver(device, driver) == FALSE)
1486                         continue;
1487
1488                 DBG("driver %p name %s", driver, driver->name);
1489
1490                 if (driver->probe(device) == 0) {
1491                         device->driver = driver;
1492                         break;
1493                 }
1494         }
1495
1496         if (device->driver == NULL)
1497                 return -ENODEV;
1498
1499         return setup_device(device);
1500 }
1501
1502 static void device_remove(struct connman_element *element)
1503 {
1504         struct connman_device *device = element->device;
1505
1506         DBG("element %p name %s", element, element->name);
1507
1508         if (device == NULL)
1509                 return;
1510
1511         if (device->driver == NULL)
1512                 return;
1513
1514         remove_device(device);
1515 }
1516
1517 static struct connman_driver device_driver = {
1518         .name           = "device",
1519         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1520         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1521         .probe          = device_probe,
1522         .remove         = device_remove,
1523 };
1524
1525 static int device_load(struct connman_device *device)
1526 {
1527         GKeyFile *keyfile;
1528         gchar *pathname, *data = NULL;
1529         gsize length;
1530         char *str;
1531         int val;
1532
1533         DBG("device %p", device);
1534
1535         pathname = g_strdup_printf("%s/%s.conf", STORAGEDIR,
1536                                                         device->element.name);
1537         if (pathname == NULL)
1538                 return -ENOMEM;
1539
1540         keyfile = g_key_file_new();
1541
1542         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE) {
1543                 g_free(pathname);
1544                 return -ENOENT;
1545         }
1546
1547         g_free(pathname);
1548
1549         if (g_key_file_load_from_data(keyfile, data, length,
1550                                                         0, NULL) == FALSE) {
1551                 g_free(data);
1552                 return -EILSEQ;
1553         }
1554
1555         g_free(data);
1556
1557         str = g_key_file_get_string(keyfile, "Configuration", "Policy", NULL);
1558         if (str != NULL) {
1559                 device->policy = string2policy(str);
1560                 g_free(str);
1561         }
1562
1563         val = g_key_file_get_integer(keyfile, "Configuration",
1564                                                         "Priority", NULL);
1565         if (val > 0)
1566                 device->priority = val;
1567
1568         str = g_key_file_get_string(keyfile, "Configuration",
1569                                                         "LastNetwork", NULL);
1570         if (str != NULL)
1571                 device->last_network = str;
1572
1573         g_key_file_free(keyfile);
1574
1575         return 0;
1576 }
1577
1578 static int device_save(struct connman_device *device)
1579 {
1580         GKeyFile *keyfile;
1581         gchar *pathname, *data = NULL;
1582         gsize length;
1583         const char *str;
1584
1585         DBG("device %p", device);
1586
1587         pathname = g_strdup_printf("%s/%s.conf", STORAGEDIR,
1588                                                         device->element.name);
1589         if (pathname == NULL)
1590                 return -ENOMEM;
1591
1592         keyfile = g_key_file_new();
1593
1594         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE)
1595                 goto update;
1596
1597         if (length > 0) {
1598                 if (g_key_file_load_from_data(keyfile, data, length,
1599                                                         0, NULL) == FALSE)
1600                         goto done;
1601         }
1602
1603         g_free(data);
1604
1605 update:
1606         str = policy2string(device->policy);
1607         if (str != NULL)
1608                 g_key_file_set_string(keyfile, "Configuration", "Policy", str);
1609
1610         if (device->priority > 0)
1611                 g_key_file_set_integer(keyfile, "Configuration",
1612                                                 "Priority", device->priority);
1613
1614         if (device->last_network != NULL)
1615                 g_key_file_set_string(keyfile, "Configuration",
1616                                         "LastNetwork", device->last_network);
1617
1618         data = g_key_file_to_data(keyfile, &length, NULL);
1619
1620         g_file_set_contents(pathname, data, length, NULL);
1621
1622 done:
1623         g_free(data);
1624
1625         g_key_file_free(keyfile);
1626
1627         g_free(pathname);
1628
1629         if (device->network != NULL)
1630                 __connman_storage_save_network(device->network);
1631
1632         return 0;
1633 }
1634
1635 static struct connman_storage device_storage = {
1636         .name           = "device",
1637         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1638         .device_load    = device_load,
1639         .device_save    = device_save,
1640 };
1641
1642 int __connman_device_init(void)
1643 {
1644         DBG("");
1645
1646         connection = connman_dbus_get_connection();
1647
1648         if (connman_storage_register(&device_storage) < 0)
1649                 connman_error("Failed to register device storage");
1650
1651         return connman_driver_register(&device_driver);
1652 }
1653
1654 void __connman_device_cleanup(void)
1655 {
1656         DBG("");
1657
1658         connman_driver_unregister(&device_driver);
1659
1660         connman_storage_unregister(&device_storage);
1661
1662         dbus_connection_unref(connection);
1663 }