src/network.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 <string.h>
  28
  29 #include <gdbus.h>
  30
  31 #include "connman.h"
  32
  33 static unsigned int hidden_counter = 0;
  34
  35 struct connman_network {
  36         struct connman_element element;
  37         enum connman_network_type type;
  38         enum connman_network_protocol protocol;
  39         connman_bool_t available;
  40         connman_bool_t connected;
  41         connman_bool_t roaming;
  42         connman_bool_t hidden;
  43         connman_uint8_t strength;
  44         connman_uint16_t frequency;
  45         char *identifier;
  46         char *address;
  47         char *name;
  48         char *node;
  49         char *group;
  50         struct connman_ipconfig *ipconfig;
  51
  52         struct connman_network_driver *driver;
  53         void *driver_data;
  54
  55         connman_bool_t registered;
  56         connman_bool_t connecting;
  57         connman_bool_t associating;
  58
  59         struct connman_device *device;
  60
  61         struct {
  62                 void *ssid;
  63                 int ssid_len;
  64                 char *mode;
  65                 unsigned short channel;
  66                 char *security;
  67                 char *passphrase;
  68         } wifi;
  69 };
  70
  71 static const char *type2string(enum connman_network_type type)
  72 {
  73         switch (type) {
  74         case CONNMAN_NETWORK_TYPE_UNKNOWN:
  75         case CONNMAN_NETWORK_TYPE_VENDOR:
  76                 break;
  77         case CONNMAN_NETWORK_TYPE_ETHERNET:
  78                 return "ethernet";
  79         case CONNMAN_NETWORK_TYPE_WIFI:
  80                 return "wifi";
  81         case CONNMAN_NETWORK_TYPE_WIMAX:
  82                 return "wimax";
  83         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
  84         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
  85                 return "bluetooth";
  86         case CONNMAN_NETWORK_TYPE_CELLULAR:
  87         case CONNMAN_NETWORK_TYPE_MBM:
  88         case CONNMAN_NETWORK_TYPE_HSO:
  89                 return "cellular";
  90         }
  91
  92         return NULL;
  93 }
  94
  95 static DBusMessage *get_properties(DBusConnection *conn,
  96                                         DBusMessage *msg, void *data)
  97 {
  98         struct connman_network *network = data;
  99         DBusMessage *reply;
 100         DBusMessageIter array, dict;
 101
 102         DBG("conn %p", conn);
 103
 104         if (__connman_security_check_privilege(msg,
 105                                         CONNMAN_SECURITY_PRIVILEGE_PUBLIC) < 0)
 106                 return __connman_error_permission_denied(msg);
 107
 108         reply = dbus_message_new_method_return(msg);
 109         if (reply == NULL)
 110                 return NULL;
 111
 112         dbus_message_iter_init_append(reply, &array);
 113
 114         connman_dbus_dict_open(&array, &dict);
 115
 116         if (network->device) {
 117                 const char *path = connman_device_get_path(network->device);
 118                 if (path != NULL)
 119                         connman_dbus_dict_append_basic(&dict, "Device",
 120                                                 DBUS_TYPE_OBJECT_PATH, &path);
 121         }
 122
 123         if (network->address != NULL)
 124                 connman_dbus_dict_append_basic(&dict, "Address",
 125                                         DBUS_TYPE_STRING, &network->address);
 126
 127         if (network->name != NULL)
 128                 connman_dbus_dict_append_basic(&dict, "Name",
 129                                         DBUS_TYPE_STRING, &network->name);
 130
 131         connman_dbus_dict_append_basic(&dict, "Connected",
 132                                 DBUS_TYPE_BOOLEAN, &network->connected);
 133
 134         if (network->strength > 0)
 135                 connman_dbus_dict_append_basic(&dict, "Strength",
 136                                         DBUS_TYPE_BYTE, &network->strength);
 137
 138         if (network->frequency > 0)
 139                 connman_dbus_dict_append_basic(&dict, "Frequency",
 140                                         DBUS_TYPE_UINT16, &network->frequency);
 141
 142         if (network->wifi.ssid != NULL && network->wifi.ssid_len > 0)
 143                 connman_dbus_dict_append_fixed_array(&dict, "WiFi.SSID",
 144                                 DBUS_TYPE_BYTE, &network->wifi.ssid,
 145                                                 network->wifi.ssid_len);
 146
 147         if (network->wifi.mode != NULL)
 148                 connman_dbus_dict_append_basic(&dict, "WiFi.Mode",
 149                                 DBUS_TYPE_STRING, &network->wifi.mode);
 150
 151         if (network->wifi.channel > 0)
 152                 connman_dbus_dict_append_basic(&dict, "WiFi.Channel",
 153                                 DBUS_TYPE_UINT16, &network->wifi.channel);
 154
 155         if (network->wifi.security != NULL)
 156                 connman_dbus_dict_append_basic(&dict, "WiFi.Security",
 157                                 DBUS_TYPE_STRING, &network->wifi.security);
 158
 159         if (network->wifi.passphrase != NULL &&
 160                         __connman_security_check_privilege(msg,
 161                                 CONNMAN_SECURITY_PRIVILEGE_SECRET) == 0)
 162                 connman_dbus_dict_append_basic(&dict, "WiFi.Passphrase",
 163                                 DBUS_TYPE_STRING, &network->wifi.passphrase);
 164
 165         connman_dbus_dict_close(&array, &dict);
 166
 167         return reply;
 168 }
 169
 170 static GDBusMethodTable network_methods[] = {
 171         { "GetProperties", "",   "a{sv}", get_properties },
 172         { },
 173 };
 174
 175 static GDBusSignalTable network_signals[] = {
 176         { "PropertyChanged", "sv" },
 177         { },
 178 };
 179
 180 static DBusConnection *connection;
 181
 182 static void append_networks(DBusMessageIter *iter, void *user_data)
 183 {
 184         struct connman_device *device = user_data;
 185
 186         __connman_element_list((struct connman_element *) device,
 187                                         CONNMAN_ELEMENT_TYPE_NETWORK, iter);
 188 }
 189
 190 static void emit_networks_signal(struct connman_device *device)
 191 {
 192         const char *path = connman_device_get_path(device);
 193
 194         connman_dbus_property_changed_array(path,
 195                         CONNMAN_DEVICE_INTERFACE, "Networks",
 196                         DBUS_TYPE_OBJECT_PATH, append_networks, device);
 197 }
 198
 199 static int register_interface(struct connman_element *element)
 200 {
 201         struct connman_network *network = element->network;
 202
 203         DBG("element %p name %s", element, element->name);
 204
 205         if (g_dbus_register_interface(connection, element->path,
 206                                         CONNMAN_NETWORK_INTERFACE,
 207                                         network_methods, network_signals,
 208                                         NULL, network, NULL) == FALSE) {
 209                 connman_error("Failed to register %s network", element->path);
 210                 return -EIO;
 211         }
 212
 213         network->registered = TRUE;
 214
 215         emit_networks_signal(network->device);
 216
 217         return 0;
 218 }
 219
 220 static void unregister_interface(struct connman_element *element)
 221 {
 222         struct connman_network * network = element->network;
 223
 224         DBG("element %p name %s", element, element->name);
 225
 226         network->registered = FALSE;
 227
 228         emit_networks_signal(network->device);
 229
 230         g_dbus_unregister_interface(connection, element->path,
 231                                                 CONNMAN_NETWORK_INTERFACE);
 232 }
 233
 234 connman_bool_t __connman_network_has_driver(struct connman_network *network)
 235 {
 236         if (network == NULL || network->driver == NULL)
 237                 return FALSE;
 238
 239         return network->registered;
 240 }
 241
 242 static GSList *driver_list = NULL;
 243
 244 static gint compare_priority(gconstpointer a, gconstpointer b)
 245 {
 246         const struct connman_network_driver *driver1 = a;
 247         const struct connman_network_driver *driver2 = b;
 248
 249         return driver2->priority - driver1->priority;
 250 }
 251
 252 /**
 253  * connman_network_driver_register:
 254  * @driver: network driver definition
 255  *
 256  * Register a new network driver
 257  *
 258  * Returns: %0 on success
 259  */
 260 int connman_network_driver_register(struct connman_network_driver *driver)
 261 {
 262         DBG("driver %p name %s", driver, driver->name);
 263
 264         driver_list = g_slist_insert_sorted(driver_list, driver,
 265                                                         compare_priority);
 266
 267         return 0;
 268 }
 269
 270 /**
 271  * connman_network_driver_unregister:
 272  * @driver: network driver definition
 273  *
 274  * Remove a previously registered network driver
 275  */
 276 void connman_network_driver_unregister(struct connman_network_driver *driver)
 277 {
 278         DBG("driver %p name %s", driver, driver->name);
 279
 280         driver_list = g_slist_remove(driver_list, driver);
 281 }
 282
 283 static void network_destruct(struct connman_element *element)
 284 {
 285         struct connman_network *network = element->network;
 286
 287         DBG("element %p name %s", element, element->name);
 288
 289         g_free(network->wifi.ssid);
 290         g_free(network->wifi.mode);
 291         g_free(network->wifi.security);
 292         g_free(network->wifi.passphrase);
 293
 294         g_free(network->group);
 295         g_free(network->node);
 296         g_free(network->name);
 297         g_free(network->address);
 298         g_free(network->identifier);
 299
 300         if (network->ipconfig) {
 301                 connman_ipconfig_unref(network->ipconfig);
 302                 network->ipconfig = NULL;
 303         }
 304 }
 305
 306 /**
 307  * connman_network_create:
 308  * @identifier: network identifier (for example an unqiue name)
 309  *
 310  * Allocate a new network and assign the #identifier to it.
 311  *
 312  * Returns: a newly-allocated #connman_network structure
 313  */
 314 struct connman_network *connman_network_create(const char *identifier,
 315                                                 enum connman_network_type type)
 316 {
 317         struct connman_network *network;
 318         connman_uint8_t strength = 0;
 319         const char *str;
 320         char *temp;
 321
 322         DBG("identifier %s type %d", identifier, type);
 323
 324         network = g_try_new0(struct connman_network, 1);
 325         if (network == NULL)
 326                 return NULL;
 327
 328         DBG("network %p", network);
 329
 330         __connman_element_initialize(&network->element);
 331
 332         //temp = connman_dbus_encode_string(identifier);
 333         if (identifier == NULL) {
 334                 temp = g_strdup_printf("hidden_%d", hidden_counter++);
 335                 network->hidden = TRUE;
 336         } else
 337                 temp = g_strdup(identifier);
 338
 339         if (temp == NULL) {
 340                 g_free(network);
 341                 return NULL;
 342         }
 343
 344         network->element.name = temp;
 345         network->element.type = CONNMAN_ELEMENT_TYPE_NETWORK;
 346
 347         network->element.network = network;
 348         network->element.destruct = network_destruct;
 349
 350         str = type2string(type);
 351         if (str != NULL)
 352                 connman_element_set_string(&network->element, "Type", str);
 353
 354         connman_element_set_uint8(&network->element, "Strength", strength);
 355
 356         network->type       = type;
 357         network->identifier = g_strdup(temp);
 358
 359         return network;
 360 }
 361
 362 /**
 363  * connman_network_ref:
 364  * @network: network structure
 365  *
 366  * Increase reference counter of  network
 367  */
 368 struct connman_network *connman_network_ref(struct connman_network *network)
 369 {
 370         if (connman_element_ref(&network->element) == NULL)
 371                 return NULL;
 372
 373         return network;
 374 }
 375
 376 /**
 377  * connman_network_unref:
 378  * @network: network structure
 379  *
 380  * Decrease reference counter of network
 381  */
 382 void connman_network_unref(struct connman_network *network)
 383 {
 384         connman_element_unref(&network->element);
 385 }
 386
 387 const char *__connman_network_get_type(struct connman_network *network)
 388 {
 389         return type2string(network->type);
 390 }
 391
 392 /**
 393  * connman_network_get_type:
 394  * @network: network structure
 395  *
 396  * Get type of network
 397  */
 398 enum connman_network_type connman_network_get_type(struct connman_network *network)
 399 {
 400         return network->type;
 401 }
 402
 403 /**
 404  * connman_network_get_identifier:
 405  * @network: network structure
 406  *
 407  * Get identifier of network
 408  */
 409 const char *connman_network_get_identifier(struct connman_network *network)
 410 {
 411         return network->identifier;
 412 }
 413
 414 /**
 415  * connman_network_get_path:
 416  * @network: network structure
 417  *
 418  * Get path name of network
 419  */
 420 const char *connman_network_get_path(struct connman_network *network)
 421 {
 422         return network->element.path;
 423 }
 424
 425 /**
 426  * connman_network_set_index:
 427  * @network: network structure
 428  * @index: index number
 429  *
 430  * Set index number of network
 431  */
 432 void connman_network_set_index(struct connman_network *network, int index)
 433 {
 434         network->element.index = index;
 435 }
 436
 437 /**
 438  * connman_network_get_index:
 439  * @network: network structure
 440  *
 441  * Get index number of network
 442  */
 443 int connman_network_get_index(struct connman_network *network)
 444 {
 445         return network->element.index;
 446 }
 447
 448 /**
 449  * connman_network_get_element:
 450  * @network: network structure
 451  *
 452  * Get connman_element of network
 453  */
 454 struct connman_element *connman_network_get_element(
 455                                 struct connman_network *network)
 456 {
 457         return &network->element;
 458 }
 459
 460 /**
 461  * connman_network_set_protocol:
 462  * @network: network structure
 463  * @protocol: network protocol
 464  *
 465  * Change protocol of network
 466  */
 467 void connman_network_set_protocol(struct connman_network *network,
 468                                         enum connman_network_protocol protocol)
 469 {
 470         network->protocol = protocol;
 471 }
 472
 473 /**
 474  * connman_network_set_group:
 475  * @network: network structure
 476  * @group: group name
 477  *
 478  * Set group name for automatic clustering
 479  */
 480 void connman_network_set_group(struct connman_network *network,
 481                                                         const char *group)
 482 {
 483         switch (network->type) {
 484         case CONNMAN_NETWORK_TYPE_UNKNOWN:
 485         case CONNMAN_NETWORK_TYPE_VENDOR:
 486                 return;
 487         case CONNMAN_NETWORK_TYPE_ETHERNET:
 488         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
 489         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
 490         case CONNMAN_NETWORK_TYPE_CELLULAR:
 491         case CONNMAN_NETWORK_TYPE_MBM:
 492         case CONNMAN_NETWORK_TYPE_HSO:
 493         case CONNMAN_NETWORK_TYPE_WIFI:
 494         case CONNMAN_NETWORK_TYPE_WIMAX:
 495                 break;
 496         }
 497
 498         if (g_strcmp0(network->group, group) == 0) {
 499                 if (group != NULL)
 500                         __connman_profile_update_network(network);
 501                 return;
 502         }
 503
 504         if (network->group != NULL) {
 505                 __connman_profile_remove_network(network);
 506
 507                 g_free(network->group);
 508         }
 509
 510         network->group = g_strdup(group);
 511
 512         if (network->group != NULL)
 513                 __connman_profile_add_network(network);
 514 }
 515
 516 /**
 517  * connman_network_get_group:
 518  * @network: network structure
 519  *
 520  * Get group name for automatic clustering
 521  */
 522 const char *connman_network_get_group(struct connman_network *network)
 523 {
 524         return network->group;
 525 }
 526
 527 const char *__connman_network_get_ident(struct connman_network *network)
 528 {
 529         if (network->device == NULL)
 530                 return NULL;
 531
 532         return __connman_device_get_ident(network->device);
 533 }
 534
 535 connman_bool_t __connman_network_get_weakness(struct connman_network *network)
 536 {
 537         switch (network->type) {
 538         case CONNMAN_NETWORK_TYPE_UNKNOWN:
 539         case CONNMAN_NETWORK_TYPE_VENDOR:
 540         case CONNMAN_NETWORK_TYPE_ETHERNET:
 541         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
 542         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
 543         case CONNMAN_NETWORK_TYPE_CELLULAR:
 544         case CONNMAN_NETWORK_TYPE_MBM:
 545         case CONNMAN_NETWORK_TYPE_HSO:
 546         case CONNMAN_NETWORK_TYPE_WIMAX:
 547                 break;
 548         case CONNMAN_NETWORK_TYPE_WIFI:
 549                 if (g_strcmp0(network->wifi.mode, "adhoc") == 0)
 550                         return TRUE;
 551                 if (network->strength > 0 && network->strength < 20)
 552                         return TRUE;
 553                 break;
 554         }
 555
 556         return FALSE;
 557 }
 558
 559 connman_bool_t __connman_network_get_connecting(struct connman_network *network)
 560 {
 561         return network->connecting;
 562 }
 563
 564 /**
 565  * connman_network_set_available:
 566  * @network: network structure
 567  * @available: availability state
 568  *
 569  * Change availability state of network (in range)
 570  */
 571 int connman_network_set_available(struct connman_network *network,
 572                                                 connman_bool_t available)
 573 {
 574         DBG("network %p available %d", network, available);
 575
 576         if (network->available == available)
 577                 return -EALREADY;
 578
 579         network->available = available;
 580
 581         return 0;
 582 }
 583
 584 /**
 585  * connman_network_get_available:
 586  * @network: network structure
 587  *
 588  * Get network available setting
 589  */
 590 connman_bool_t connman_network_get_available(struct connman_network *network)
 591 {
 592         if (network->hidden == TRUE)
 593                 return TRUE;
 594
 595         return network->available;
 596 }
 597
 598 /**
 599  * connman_network_set_associating:
 600  * @network: network structure
 601  * @associating: associating state
 602  *
 603  * Change associating state of network
 604  */
 605 int connman_network_set_associating(struct connman_network *network,
 606                                                 connman_bool_t associating)
 607 {
 608         DBG("network %p associating %d", network, associating);
 609
 610         if (network->associating == associating)
 611                 return -EALREADY;
 612
 613         network->associating = associating;
 614
 615         if (associating == TRUE) {
 616                 struct connman_service *service;
 617
 618                 service = __connman_service_lookup_from_network(network);
 619                 __connman_service_indicate_state(service,
 620                                         CONNMAN_SERVICE_STATE_ASSOCIATION);
 621         }
 622
 623         return 0;
 624 }
 625
 626 static void set_associate_error(struct connman_network *network)
 627 {
 628         struct connman_service *service;
 629
 630         if (network->associating == FALSE)
 631                 return ;
 632
 633         network->associating = FALSE;
 634
 635         service = __connman_service_lookup_from_network(network);
 636
 637         __connman_service_indicate_state(service,
 638                                         CONNMAN_SERVICE_STATE_FAILURE);
 639 }
 640
 641 void connman_network_set_error(struct connman_network *network,
 642                                         enum connman_network_error error)
 643 {
 644         DBG("nework %p, error %d", network, error);
 645
 646         network->connecting = FALSE;
 647         network->associating = FALSE;
 648
 649         switch (error) {
 650         case CONNMAN_NETWORK_ERROR_UNKNOWN:
 651                 return;
 652         case CONNMAN_NETWORK_ERROR_ASSOCIATE_FAIL:
 653                 set_associate_error(network);
 654                 break;
 655         }
 656 }
 657
 658 static gboolean set_connected(gpointer user_data)
 659 {
 660         struct connman_network *network = user_data;
 661         struct connman_service *service;
 662
 663         service = __connman_service_lookup_from_network(network);
 664
 665         if (network->connected == TRUE) {
 666                 struct connman_element *element;
 667                 enum connman_element_type type = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 668
 669                 switch (network->protocol) {
 670                 case CONNMAN_NETWORK_PROTOCOL_UNKNOWN:
 671                         return 0;
 672                 case CONNMAN_NETWORK_PROTOCOL_IP:
 673                         type = CONNMAN_ELEMENT_TYPE_DHCP;
 674                         break;
 675                 }
 676
 677                 __connman_device_increase_connections(network->device);
 678
 679                 __connman_device_set_network(network->device, network);
 680
 681                 connman_device_set_disconnected(network->device, FALSE);
 682
 683                 if (network->element.ipv4.method ==
 684                                         CONNMAN_IPCONFIG_METHOD_STATIC) {
 685
 686                         network->connecting = FALSE;
 687
 688                         connman_network_set_associating(network, FALSE);
 689
 690                         __connman_service_indicate_state(service,
 691                                                 CONNMAN_SERVICE_STATE_READY);
 692
 693                         return TRUE;
 694                 }
 695
 696                 element = connman_element_create(NULL);
 697                 if (element != NULL) {
 698                         element->type  = type;
 699                         element->index = network->element.index;
 700
 701                         if (connman_element_register(element,
 702                                                 &network->element) < 0)
 703                                 connman_element_unref(element);
 704
 705                         __connman_service_indicate_state(service,
 706                                         CONNMAN_SERVICE_STATE_CONFIGURATION);
 707                 }
 708         } else {
 709                 connman_element_unregister_children(&network->element);
 710
 711                 __connman_device_set_network(network->device, NULL);
 712                 network->hidden = FALSE;
 713
 714                 __connman_device_decrease_connections(network->device);
 715
 716                 __connman_service_indicate_state(service,
 717                                                 CONNMAN_SERVICE_STATE_IDLE);
 718         }
 719
 720         network->connecting = FALSE;
 721
 722         connman_network_set_associating(network, FALSE);
 723
 724         return FALSE;
 725 }
 726
 727 /**
 728  * connman_network_set_connected:
 729  * @network: network structure
 730  * @connected: connected state
 731  *
 732  * Change connected state of network
 733  */
 734 int connman_network_set_connected(struct connman_network *network,
 735                                                 connman_bool_t connected)
 736 {
 737         DBG("network %p connected %d", network, connected);
 738
 739         if ((network->connecting == TRUE || network->associating == TRUE) &&
 740                                                         connected == FALSE) {
 741                 connman_element_set_error(&network->element,
 742                                         CONNMAN_ELEMENT_ERROR_CONNECT_FAILED);
 743                 __connman_network_disconnect(network);
 744         }
 745
 746         if (network->connected == connected)
 747                 return -EALREADY;
 748
 749         network->connected = connected;
 750
 751         if (network->registered == FALSE) {
 752                 g_idle_add(set_connected, network);
 753                 return 0;
 754         }
 755
 756         connman_dbus_property_changed_basic(network->element.path,
 757                                 CONNMAN_NETWORK_INTERFACE, "Connected",
 758                                                 DBUS_TYPE_BOOLEAN, &connected);
 759
 760         set_connected(network);
 761
 762         return 0;
 763 }
 764
 765 /**
 766  * connman_network_get_connected:
 767  * @network: network structure
 768  *
 769  * Get network connection status
 770  */
 771 connman_bool_t connman_network_get_connected(struct connman_network *network)
 772 {
 773         return network->connected;
 774 }
 775
 776 /**
 777  * connman_network_get_associating:
 778  * @network: network structure
 779  *
 780  * Get network associating status
 781  */
 782 connman_bool_t connman_network_get_associating(struct connman_network *network)
 783 {
 784         return network->associating;
 785 }
 786
 787 /**
 788  * __connman_network_connect:
 789  * @network: network structure
 790  *
 791  * Connect network
 792  */
 793 int __connman_network_connect(struct connman_network *network)
 794 {
 795         int err;
 796
 797         DBG("network %p", network);
 798
 799         if (network->connected == TRUE)
 800                 return -EISCONN;
 801
 802         if (network->connecting == TRUE || network->associating == TRUE)
 803                 return -EALREADY;
 804
 805         if (network->driver == NULL)
 806                 return -EUNATCH;
 807
 808         if (network->driver->connect == NULL)
 809                 return -ENOSYS;
 810
 811         __connman_device_disconnect(network->device);
 812
 813         network->connecting = TRUE;
 814
 815         err = network->driver->connect(network);
 816         if (err < 0) {
 817                 if (err == -EINPROGRESS)
 818                         connman_network_set_associating(network, TRUE);
 819                 else
 820                         network->hidden = FALSE;
 821
 822                 return err;
 823         }
 824
 825         network->connected = TRUE;
 826         set_connected(network);
 827
 828         return err;
 829 }
 830
 831 /**
 832  * __connman_network_disconnect:
 833  * @network: network structure
 834  *
 835  * Disconnect network
 836  */
 837 int __connman_network_disconnect(struct connman_network *network)
 838 {
 839         int err;
 840
 841         DBG("network %p", network);
 842
 843         if (network->connected == FALSE && network->connecting == FALSE &&
 844                                                 network->associating == FALSE)
 845                 return -ENOTCONN;
 846
 847         if (network->driver == NULL)
 848                 return -EUNATCH;
 849
 850         if (network->driver->disconnect == NULL)
 851                 return -ENOSYS;
 852
 853         network->connecting = FALSE;
 854
 855         err = network->driver->disconnect(network);
 856         if (err == 0) {
 857                 network->connected = FALSE;
 858                 set_connected(network);
 859         }
 860
 861         return err;
 862 }
 863
 864 /**
 865  * connman_network_set_address:
 866  * @network: network structure
 867  * @address: binary address value
 868  * @size: binary address length
 869  *
 870  * Set unique address value for network
 871  */
 872 int connman_network_set_address(struct connman_network *network,
 873                                 const void *address, unsigned int size)
 874 {
 875         const unsigned char *addr_octet = address;
 876         char *str;
 877
 878         DBG("network %p size %d", network, size);
 879
 880         if (size != 6)
 881                 return -EINVAL;
 882
 883         str = g_strdup_printf("%02X:%02X:%02X:%02X:%02X:%02X",
 884                                 addr_octet[0], addr_octet[1], addr_octet[2],
 885                                 addr_octet[3], addr_octet[4], addr_octet[5]);
 886         if (str == NULL)
 887                 return -ENOMEM;
 888
 889         g_free(network->address);
 890         network->address = str;
 891
 892         return connman_element_set_string(&network->element,
 893                                                 "Address", network->address);
 894 }
 895
 896 /**
 897  * connman_network_set_name:
 898  * @network: network structure
 899  * @name: name value
 900  *
 901  * Set display name value for network
 902  */
 903 int connman_network_set_name(struct connman_network *network,
 904                                                         const char *name)
 905 {
 906         DBG("network %p name %s", network, name);
 907
 908         g_free(network->name);
 909         network->name = g_strdup(name);
 910
 911         return connman_element_set_string(&network->element, "Name", name);
 912 }
 913
 914 /**
 915  * connman_network_set_strength:
 916  * @network: network structure
 917  * @strength: strength value
 918  *
 919  * Set signal strength value for network
 920  */
 921 int connman_network_set_strength(struct connman_network *network,
 922                                                 connman_uint8_t strength)
 923 {
 924         DBG("network %p strengh %d", network, strength);
 925
 926         network->strength = strength;
 927
 928         return connman_element_set_uint8(&network->element,
 929                                                 "Strength", strength);
 930 }
 931
 932 /**
 933  * connman_network_set_roaming:
 934  * @network: network structure
 935  * @roaming: roaming state
 936  *
 937  * Set roaming state for network
 938  */
 939 int connman_network_set_roaming(struct connman_network *network,
 940                                                 connman_bool_t roaming)
 941 {
 942         DBG("network %p roaming %d", network, roaming);
 943
 944         network->roaming = roaming;
 945
 946         return connman_element_set_bool(&network->element,
 947                                                 "Roaming", roaming);
 948 }
 949
 950 /**
 951  * connman_network_set_string:
 952  * @network: network structure
 953  * @key: unique identifier
 954  * @value: string value
 955  *
 956  * Set string value for specific key
 957  */
 958 int connman_network_set_string(struct connman_network *network,
 959                                         const char *key, const char *value)
 960 {
 961         DBG("network %p key %s value %s", network, key, value);
 962
 963         if (g_strcmp0(key, "Name") == 0)
 964                 return connman_network_set_name(network, value);
 965
 966         if (g_str_equal(key, "Address") == TRUE) {
 967                 g_free(network->address);
 968                 network->address = g_strdup(value);
 969         } else if (g_str_equal(key, "Node") == TRUE) {
 970                 g_free(network->node);
 971                 network->node = g_strdup(value);
 972         } else if (g_str_equal(key, "WiFi.Mode") == TRUE) {
 973                 g_free(network->wifi.mode);
 974                 network->wifi.mode = g_strdup(value);
 975         } else if (g_str_equal(key, "WiFi.Security") == TRUE) {
 976                 g_free(network->wifi.security);
 977                 network->wifi.security = g_strdup(value);
 978         } else if (g_str_equal(key, "WiFi.Passphrase") == TRUE) {
 979                 g_free(network->wifi.passphrase);
 980                 network->wifi.passphrase = g_strdup(value);
 981         }
 982
 983         return connman_element_set_string(&network->element, key, value);
 984 }
 985
 986 /**
 987  * connman_network_get_string:
 988  * @network: network structure
 989  * @key: unique identifier
 990  *
 991  * Get string value for specific key
 992  */
 993 const char *connman_network_get_string(struct connman_network *network,
 994                                                         const char *key)
 995 {
 996         DBG("network %p key %s", network, key);
 997
 998         if (g_str_equal(key, "Address") == TRUE)
 999                 return network->address;
1000         else if (g_str_equal(key, "Name") == TRUE)
1001                 return network->name;
1002         else if (g_str_equal(key, "Node") == TRUE)
1003                 return network->node;
1004         else if (g_str_equal(key, "WiFi.Mode") == TRUE)
1005                 return network->wifi.mode;
1006         else if (g_str_equal(key, "WiFi.Security") == TRUE)
1007                 return network->wifi.security;
1008         else if (g_str_equal(key, "WiFi.Passphrase") == TRUE)
1009                 return network->wifi.passphrase;
1010
1011         return connman_element_get_string(&network->element, key);
1012 }
1013
1014 /**
1015  * connman_network_set_bool:
1016  * @network: network structure
1017  * @key: unique identifier
1018  * @value: boolean value
1019  *
1020  * Set boolean value for specific key
1021  */
1022 int connman_network_set_bool(struct connman_network *network,
1023                                         const char *key, connman_bool_t value)
1024 {
1025         DBG("network %p key %s value %d", network, key, value);
1026
1027         if (g_strcmp0(key, "Roaming") == 0)
1028                 return connman_network_set_roaming(network, value);
1029
1030         return connman_element_set_bool(&network->element, key, value);
1031 }
1032
1033 /**
1034  * connman_network_get_bool:
1035  * @network: network structure
1036  * @key: unique identifier
1037  *
1038  * Get boolean value for specific key
1039  */
1040 connman_bool_t connman_network_get_bool(struct connman_network *network,
1041                                                         const char *key)
1042 {
1043         DBG("network %p key %s", network, key);
1044
1045         if (g_str_equal(key, "Roaming") == TRUE)
1046                 return network->roaming;
1047
1048         return connman_element_get_bool(&network->element, key);
1049 }
1050
1051 /**
1052  * connman_network_set_uint8:
1053  * @network: network structure
1054  * @key: unique identifier
1055  * @value: integer value
1056  *
1057  * Set integer value for specific key
1058  */
1059 int connman_network_set_uint8(struct connman_network *network,
1060                                         const char *key, connman_uint8_t value)
1061 {
1062         DBG("network %p key %s value %d", network, key, value);
1063
1064         if (g_strcmp0(key, "Strength") == 0)
1065                 return connman_network_set_strength(network, value);
1066
1067         return connman_element_set_uint8(&network->element, key, value);
1068 }
1069
1070 /**
1071  * connman_network_get_uint8:
1072  * @network: network structure
1073  * @key: unique identifier
1074  *
1075  * Get integer value for specific key
1076  */
1077 connman_uint8_t connman_network_get_uint8(struct connman_network *network,
1078                                                         const char *key)
1079 {
1080         DBG("network %p key %s", network, key);
1081
1082         if (g_str_equal(key, "Strength") == TRUE)
1083                 return network->strength;
1084
1085         return connman_element_get_uint8(&network->element, key);
1086 }
1087
1088 /**
1089  * connman_network_set_uint16:
1090  * @network: network structure
1091  * @key: unique identifier
1092  * @value: integer value
1093  *
1094  * Set integer value for specific key
1095  */
1096 int connman_network_set_uint16(struct connman_network *network,
1097                                 const char *key, connman_uint16_t value)
1098 {
1099         DBG("network %p key %s value %d", network, key, value);
1100
1101         if (g_str_equal(key, "Frequency") == TRUE)
1102                 network->frequency = value;
1103         else if (g_str_equal(key, "WiFi.Channel") == TRUE)
1104                 network->wifi.channel = value;
1105
1106         return -EINVAL;
1107 }
1108
1109 /**
1110  * connman_network_get_uint16:
1111  * @network: network structure
1112  * @key: unique identifier
1113  *
1114  * Get integer value for specific key
1115  */
1116 connman_uint16_t connman_network_get_uint16(struct connman_network *network,
1117                                                         const char *key)
1118 {
1119         DBG("network %p key %s", network, key);
1120
1121         if (g_str_equal(key, "Frequency") == TRUE)
1122                 return network->frequency;
1123         else if (g_str_equal(key, "WiFi.Channel") == TRUE)
1124                 return network->wifi.channel;
1125
1126         return 0;
1127 }
1128
1129 /**
1130  * connman_network_set_blob:
1131  * @network: network structure
1132  * @key: unique identifier
1133  * @data: blob data
1134  * @size: blob size
1135  *
1136  * Set binary blob value for specific key
1137  */
1138 int connman_network_set_blob(struct connman_network *network,
1139                         const char *key, const void *data, unsigned int size)
1140 {
1141         DBG("network %p key %s size %d", network, key, size);
1142
1143         if (g_strcmp0(key, "Address") == 0)
1144                 return connman_network_set_address(network, data, size);
1145
1146         if (g_str_equal(key, "WiFi.SSID") == TRUE) {
1147                 g_free(network->wifi.ssid);
1148                 network->wifi.ssid = g_try_malloc(size);
1149                 if (network->wifi.ssid != NULL) {
1150                         memcpy(network->wifi.ssid, data, size);
1151                         network->wifi.ssid_len = size;
1152                 } else
1153                         network->wifi.ssid_len = 0;
1154         }
1155
1156         return connman_element_set_blob(&network->element, key, data, size);
1157 }
1158
1159 /**
1160  * connman_network_get_blob:
1161  * @network: network structure
1162  * @key: unique identifier
1163  * @size: pointer to blob size
1164  *
1165  * Get binary blob value for specific key
1166  */
1167 const void *connman_network_get_blob(struct connman_network *network,
1168                                         const char *key, unsigned int *size)
1169 {
1170         DBG("network %p key %s", network, key);
1171
1172         if (g_str_equal(key, "WiFi.SSID") == TRUE) {
1173                 if (size != NULL)
1174                         *size = network->wifi.ssid_len;
1175                 return network->wifi.ssid;
1176         }
1177
1178         return connman_element_get_blob(&network->element, key, size);
1179 }
1180
1181 void __connman_network_set_device(struct connman_network *network,
1182                                         struct connman_device *device)
1183 {
1184         network->device = device;
1185 }
1186
1187 /**
1188  * connman_network_get_device:
1189  * @network: network structure
1190  *
1191  * Get parent device of network
1192  */
1193 struct connman_device *connman_network_get_device(struct connman_network *network)
1194 {
1195         return network->device;
1196 }
1197
1198 /**
1199  * connman_network_get_data:
1200  * @network: network structure
1201  *
1202  * Get private network data pointer
1203  */
1204 void *connman_network_get_data(struct connman_network *network)
1205 {
1206         return network->driver_data;
1207 }
1208
1209 /**
1210  * connman_network_set_data:
1211  * @network: network structure
1212  * @data: data pointer
1213  *
1214  * Set private network data pointer
1215  */
1216 void connman_network_set_data(struct connman_network *network, void *data)
1217 {
1218         network->driver_data = data;
1219 }
1220
1221 static gboolean match_driver(struct connman_network *network,
1222                                         struct connman_network_driver *driver)
1223 {
1224         if (network->type == driver->type ||
1225                         driver->type == CONNMAN_NETWORK_TYPE_UNKNOWN)
1226                 return TRUE;
1227
1228         return FALSE;
1229 }
1230
1231 static int network_probe(struct connman_element *element)
1232 {
1233         struct connman_network *network = element->network;
1234         GSList *list;
1235         int err;
1236
1237         DBG("element %p name %s", element, element->name);
1238
1239         if (network == NULL)
1240                 return -ENODEV;
1241
1242         for (list = driver_list; list; list = list->next) {
1243                 struct connman_network_driver *driver = list->data;
1244
1245                 if (match_driver(network, driver) == FALSE)
1246                         continue;
1247
1248                 DBG("driver %p name %s", driver, driver->name);
1249
1250                 if (driver->probe(network) == 0) {
1251                         network->driver = driver;
1252                         break;
1253                 }
1254         }
1255
1256         if (network->driver == NULL)
1257                 return -ENODEV;
1258
1259         err = register_interface(element);
1260         if (err < 0) {
1261                 if (network->driver->remove)
1262                         network->driver->remove(network);
1263                 return err;
1264         }
1265
1266         switch (network->type) {
1267         case CONNMAN_NETWORK_TYPE_UNKNOWN:
1268         case CONNMAN_NETWORK_TYPE_VENDOR:
1269                 break;
1270         case CONNMAN_NETWORK_TYPE_ETHERNET:
1271         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
1272         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
1273         case CONNMAN_NETWORK_TYPE_CELLULAR:
1274         case CONNMAN_NETWORK_TYPE_MBM:
1275         case CONNMAN_NETWORK_TYPE_HSO:
1276         case CONNMAN_NETWORK_TYPE_WIFI:
1277         case CONNMAN_NETWORK_TYPE_WIMAX:
1278                 if (network->group != NULL)
1279                         __connman_profile_add_network(network);
1280                 break;
1281         }
1282
1283         return 0;
1284 }
1285
1286 static void network_remove(struct connman_element *element)
1287 {
1288         struct connman_network *network = element->network;
1289
1290         DBG("element %p name %s", element, element->name);
1291
1292         if (network == NULL)
1293                 return;
1294
1295         if (network->driver == NULL)
1296                 return;
1297
1298         switch (network->type) {
1299         case CONNMAN_NETWORK_TYPE_UNKNOWN:
1300         case CONNMAN_NETWORK_TYPE_VENDOR:
1301                 break;
1302         case CONNMAN_NETWORK_TYPE_ETHERNET:
1303         case CONNMAN_NETWORK_TYPE_BLUETOOTH_PAN:
1304         case CONNMAN_NETWORK_TYPE_BLUETOOTH_DUN:
1305         case CONNMAN_NETWORK_TYPE_CELLULAR:
1306         case CONNMAN_NETWORK_TYPE_MBM:
1307         case CONNMAN_NETWORK_TYPE_HSO:
1308         case CONNMAN_NETWORK_TYPE_WIFI:
1309         case CONNMAN_NETWORK_TYPE_WIMAX:
1310                 if (network->group != NULL) {
1311                         __connman_profile_remove_network(network);
1312
1313                         g_free(network->group);
1314                         network->group = NULL;
1315                 }
1316                 break;
1317         }
1318
1319         unregister_interface(element);
1320
1321         if (network->driver->remove)
1322                 network->driver->remove(network);
1323 }
1324
1325 static void network_change(struct connman_element *element)
1326 {
1327         struct connman_network *network = element->network;
1328
1329         DBG("element %p name %s", element, element->name);
1330
1331         if (element->state != CONNMAN_ELEMENT_STATE_ERROR)
1332                 return;
1333
1334         if (element->error != CONNMAN_ELEMENT_ERROR_DHCP_FAILED)
1335                 return;
1336
1337         if (network->connected == FALSE)
1338                 return;
1339
1340         connman_element_unregister_children(element);
1341
1342         connman_device_set_disconnected(network->device, TRUE);
1343
1344         if (network->driver && network->driver->disconnect) {
1345                 network->driver->disconnect(network);
1346                 return;
1347         }
1348
1349         network->connected = FALSE;
1350 }
1351
1352 static struct connman_driver network_driver = {
1353         .name           = "network",
1354         .type           = CONNMAN_ELEMENT_TYPE_NETWORK,
1355         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1356         .probe          = network_probe,
1357         .remove         = network_remove,
1358         .change         = network_change,
1359 };
1360
1361 int __connman_network_init(void)
1362 {
1363         DBG("");
1364
1365         connection = connman_dbus_get_connection();
1366
1367         return connman_driver_register(&network_driver);
1368 }
1369
1370 void __connman_network_cleanup(void)
1371 {
1372         DBG("");
1373
1374         connman_driver_unregister(&network_driver);
1375
1376         dbus_connection_unref(connection);
1377 }