src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         connman_bool_t offlinemode;
  35         connman_bool_t blocked;
  36         connman_bool_t powered;
  37         connman_bool_t powered_pending;
  38         connman_bool_t powered_persistent;
  39         connman_bool_t scanning;
  40         connman_bool_t disconnected;
  41         connman_bool_t reconnect;
  42         connman_uint16_t scan_interval;
  43         char *name;
  44         char *node;
  45         char *address;
  46         char *interface;
  47         char *ident;
  48         int phyindex;
  49         unsigned int connections;
  50         guint scan_timeout;
  51
  52         struct connman_device_driver *driver;
  53         void *driver_data;
  54
  55         char *last_network;
  56         struct connman_network *network;
  57         GHashTable *networks;
  58 };
  59
  60 static gboolean device_scan_trigger(gpointer user_data)
  61 {
  62         struct connman_device *device = user_data;
  63
  64         DBG("device %p", device);
  65
  66         if (device->driver == NULL) {
  67                 device->scan_timeout = 0;
  68                 return FALSE;
  69         }
  70
  71         if (device->driver->scan)
  72                 device->driver->scan(device);
  73
  74         return TRUE;
  75 }
  76
  77 static void clear_scan_trigger(struct connman_device *device)
  78 {
  79         if (device->scan_timeout > 0) {
  80                 g_source_remove(device->scan_timeout);
  81                 device->scan_timeout = 0;
  82         }
  83 }
  84
  85 static void reset_scan_trigger(struct connman_device *device)
  86 {
  87         clear_scan_trigger(device);
  88
  89         if (device->scan_interval > 0) {
  90                 guint interval = device->scan_interval;
  91                 device->scan_timeout = g_timeout_add_seconds(interval,
  92                                         device_scan_trigger, device);
  93         }
  94 }
  95
  96 static void force_scan_trigger(struct connman_device *device)
  97 {
  98         clear_scan_trigger(device);
  99
 100         device->scan_timeout = g_timeout_add_seconds(5,
 101                                         device_scan_trigger, device);
 102 }
 103
 104 void connman_device_schedule_scan(struct connman_device *device)
 105 {
 106         reset_scan_trigger(device);
 107 }
 108
 109 static const char *type2description(enum connman_device_type type)
 110 {
 111         switch (type) {
 112         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 113         case CONNMAN_DEVICE_TYPE_VENDOR:
 114                 break;
 115         case CONNMAN_DEVICE_TYPE_ETHERNET:
 116                 return "Ethernet";
 117         case CONNMAN_DEVICE_TYPE_WIFI:
 118                 return "Wireless";
 119         case CONNMAN_DEVICE_TYPE_WIMAX:
 120                 return "WiMAX";
 121         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 122                 return "Bluetooth";
 123         case CONNMAN_DEVICE_TYPE_GPS:
 124                 return "GPS";
 125         case CONNMAN_DEVICE_TYPE_CELLULAR:
 126                 return "Cellular";
 127         case CONNMAN_DEVICE_TYPE_GADGET:
 128                 return "Gadget";
 129
 130         }
 131
 132         return NULL;
 133 }
 134
 135 static const char *type2string(enum connman_device_type type)
 136 {
 137         switch (type) {
 138         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 139         case CONNMAN_DEVICE_TYPE_VENDOR:
 140                 break;
 141         case CONNMAN_DEVICE_TYPE_ETHERNET:
 142                 return "ethernet";
 143         case CONNMAN_DEVICE_TYPE_WIFI:
 144                 return "wifi";
 145         case CONNMAN_DEVICE_TYPE_WIMAX:
 146                 return "wimax";
 147         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 148                 return "bluetooth";
 149         case CONNMAN_DEVICE_TYPE_GPS:
 150                 return "gps";
 151         case CONNMAN_DEVICE_TYPE_CELLULAR:
 152                 return "cellular";
 153         case CONNMAN_DEVICE_TYPE_GADGET:
 154                 return "gadget";
 155
 156         }
 157
 158         return NULL;
 159 }
 160
 161 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 162 {
 163         enum connman_device_type type = connman_device_get_type(device);
 164
 165         switch (type) {
 166         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 167         case CONNMAN_DEVICE_TYPE_VENDOR:
 168         case CONNMAN_DEVICE_TYPE_GPS:
 169                 break;
 170         case CONNMAN_DEVICE_TYPE_ETHERNET:
 171                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 172         case CONNMAN_DEVICE_TYPE_WIFI:
 173                 return CONNMAN_SERVICE_TYPE_WIFI;
 174         case CONNMAN_DEVICE_TYPE_WIMAX:
 175                 return CONNMAN_SERVICE_TYPE_WIMAX;
 176         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 177                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 178         case CONNMAN_DEVICE_TYPE_CELLULAR:
 179                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 180         case CONNMAN_DEVICE_TYPE_GADGET:
 181                 return CONNMAN_SERVICE_TYPE_GADGET;
 182
 183         }
 184
 185         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 186 }
 187
 188 int __connman_device_enable(struct connman_device *device)
 189 {
 190         int err;
 191
 192         DBG("device %p %d", device, device->blocked);
 193
 194         if (!device->driver || !device->driver->enable)
 195                 return -EOPNOTSUPP;
 196
 197         if (device->powered_pending == TRUE)
 198                 return -EALREADY;
 199
 200         if (device->blocked == TRUE)
 201                 return -ENOLINK;
 202
 203         err = device->driver->enable(device);
 204         if (err < 0 && err != -EALREADY) {
 205                 if (err == -EINPROGRESS) {
 206                         device->powered_pending = TRUE;
 207                         device->offlinemode = FALSE;
 208                         if (__connman_profile_get_offlinemode() == TRUE)
 209                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 210                 }
 211                 return err;
 212         }
 213
 214         device->powered_pending = TRUE;
 215         device->powered = TRUE;
 216         device->offlinemode = FALSE;
 217         if (__connman_profile_get_offlinemode() == TRUE)
 218                 __connman_profile_set_offlinemode(FALSE, FALSE);
 219
 220         __connman_technology_enable_device(device);
 221
 222         return 0;
 223 }
 224
 225 int __connman_device_disable(struct connman_device *device)
 226 {
 227         int err;
 228
 229         DBG("device %p", device);
 230
 231         if (!device->driver || !device->driver->disable)
 232                 return -EOPNOTSUPP;
 233
 234         if (device->powered == FALSE)
 235                 return -ENOLINK;
 236
 237         if (device->powered_pending == FALSE)
 238                 return -EALREADY;
 239
 240         device->reconnect = FALSE;
 241
 242         clear_scan_trigger(device);
 243
 244         g_hash_table_remove_all(device->networks);
 245
 246         err = device->driver->disable(device);
 247         if (err < 0 && err != -EALREADY) {
 248                 if (err == -EINPROGRESS)
 249                         device->powered_pending = FALSE;
 250                 return err;
 251         }
 252
 253         device->powered_pending = FALSE;
 254         device->powered = FALSE;
 255
 256         __connman_technology_disable_device(device);
 257
 258         return 0;
 259 }
 260
 261 static int set_powered(struct connman_device *device, connman_bool_t powered)
 262 {
 263         DBG("device %p powered %d", device, powered);
 264
 265         if (powered == TRUE)
 266                 return __connman_device_enable(device);
 267         else
 268                 return __connman_device_disable(device);
 269 }
 270
 271 static int setup_device(struct connman_device *device)
 272 {
 273         DBG("device %p", device);
 274
 275         __connman_technology_add_device(device);
 276
 277         if (device->offlinemode == FALSE &&
 278                                 device->powered_persistent == TRUE)
 279                 __connman_device_enable(device);
 280
 281         return 0;
 282 }
 283
 284 static void probe_driver(struct connman_element *element, gpointer user_data)
 285 {
 286         struct connman_device_driver *driver = user_data;
 287
 288         DBG("element %p name %s", element, element->name);
 289
 290         if (element->device == NULL)
 291                 return;
 292
 293         if (element->device->driver != NULL)
 294                 return;
 295
 296         if (driver->type != element->device->type)
 297                 return;
 298
 299         if (driver->probe(element->device) < 0)
 300                 return;
 301
 302         element->device->driver = driver;
 303
 304         __connman_element_set_driver(element);
 305
 306         setup_device(element->device);
 307 }
 308
 309 static void remove_device(struct connman_device *device)
 310 {
 311         DBG("device %p", device);
 312
 313         __connman_device_disable(device);
 314
 315         __connman_technology_remove_device(device);
 316
 317         if (device->driver->remove)
 318                 device->driver->remove(device);
 319
 320         device->driver = NULL;
 321 }
 322
 323 static void remove_driver(struct connman_element *element, gpointer user_data)
 324 {
 325         struct connman_device_driver *driver = user_data;
 326
 327         DBG("element %p name %s", element, element->name);
 328
 329         if (element->device == NULL)
 330                 return;
 331
 332         if (element->device->driver == driver)
 333                 remove_device(element->device);
 334 }
 335
 336 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 337 {
 338         if (device == NULL || device->driver == NULL)
 339                 return FALSE;
 340
 341         return TRUE;
 342 }
 343
 344 static GSList *driver_list = NULL;
 345
 346 static gint compare_priority(gconstpointer a, gconstpointer b)
 347 {
 348         const struct connman_device_driver *driver1 = a;
 349         const struct connman_device_driver *driver2 = b;
 350
 351         return driver2->priority - driver1->priority;
 352 }
 353
 354 /**
 355  * connman_device_driver_register:
 356  * @driver: device driver definition
 357  *
 358  * Register a new device driver
 359  *
 360  * Returns: %0 on success
 361  */
 362 int connman_device_driver_register(struct connman_device_driver *driver)
 363 {
 364         DBG("driver %p name %s", driver, driver->name);
 365
 366         driver_list = g_slist_insert_sorted(driver_list, driver,
 367                                                         compare_priority);
 368
 369         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 370                                                 probe_driver, driver);
 371
 372         return 0;
 373 }
 374
 375 /**
 376  * connman_device_driver_unregister:
 377  * @driver: device driver definition
 378  *
 379  * Remove a previously registered device driver
 380  */
 381 void connman_device_driver_unregister(struct connman_device_driver *driver)
 382 {
 383         DBG("driver %p name %s", driver, driver->name);
 384
 385         driver_list = g_slist_remove(driver_list, driver);
 386
 387         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 388                                                 remove_driver, driver);
 389 }
 390
 391 static void unregister_network(gpointer data)
 392 {
 393         struct connman_network *network = data;
 394
 395         DBG("network %p", network);
 396
 397         connman_element_unregister((struct connman_element *) network);
 398
 399         __connman_network_set_device(network, NULL);
 400
 401         connman_network_unref(network);
 402 }
 403
 404 static void device_destruct(struct connman_element *element)
 405 {
 406         struct connman_device *device = element->device;
 407
 408         DBG("element %p name %s", element, element->name);
 409
 410         clear_scan_trigger(device);
 411
 412         g_free(device->ident);
 413         g_free(device->node);
 414         g_free(device->name);
 415         g_free(device->address);
 416         g_free(device->interface);
 417
 418         g_free(device->last_network);
 419
 420         g_hash_table_destroy(device->networks);
 421         device->networks = NULL;
 422 }
 423
 424 /**
 425  * connman_device_create:
 426  * @node: device node name (for example an address)
 427  * @type: device type
 428  *
 429  * Allocate a new device of given #type and assign the #node name to it.
 430  *
 431  * Returns: a newly-allocated #connman_device structure
 432  */
 433 struct connman_device *connman_device_create(const char *node,
 434                                                 enum connman_device_type type)
 435 {
 436         struct connman_device *device;
 437         const char *str;
 438         enum connman_service_type service_type;
 439
 440         DBG("node %s type %d", node, type);
 441
 442         device = g_try_new0(struct connman_device, 1);
 443         if (device == NULL)
 444                 return NULL;
 445
 446         DBG("device %p", device);
 447
 448         __connman_element_initialize(&device->element);
 449
 450         device->element.name = g_strdup(node);
 451         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 452
 453         device->element.device = device;
 454         device->element.destruct = device_destruct;
 455
 456         str = type2string(type);
 457         if (str != NULL)
 458                 connman_element_set_string(&device->element,
 459                                         CONNMAN_PROPERTY_ID_TYPE, str);
 460
 461         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 462
 463         device->type = type;
 464         device->name = g_strdup(type2description(device->type));
 465
 466         device->powered_persistent = TRUE;
 467
 468         device->phyindex = -1;
 469
 470         service_type = __connman_device_get_service_type(device);
 471         device->blocked = __connman_technology_get_blocked(service_type);
 472
 473         switch (type) {
 474         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 475         case CONNMAN_DEVICE_TYPE_VENDOR:
 476                 device->scan_interval = 0;
 477                 break;
 478         case CONNMAN_DEVICE_TYPE_ETHERNET:
 479         case CONNMAN_DEVICE_TYPE_WIFI:
 480                 device->scan_interval = 300;
 481                 break;
 482         case CONNMAN_DEVICE_TYPE_WIMAX:
 483                 device->scan_interval = 0;
 484                 break;
 485         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 486                 device->scan_interval = 0;
 487                 break;
 488         case CONNMAN_DEVICE_TYPE_GPS:
 489                 device->scan_interval = 0;
 490                 break;
 491         case CONNMAN_DEVICE_TYPE_CELLULAR:
 492                 device->scan_interval = 0;
 493                 break;
 494         case CONNMAN_DEVICE_TYPE_GADGET:
 495                 device->scan_interval = 0;
 496                 break;
 497         }
 498
 499         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 500                                                 g_free, unregister_network);
 501
 502         return device;
 503 }
 504
 505 /**
 506  * connman_device_ref:
 507  * @device: device structure
 508  *
 509  * Increase reference counter of device
 510  */
 511 struct connman_device *connman_device_ref(struct connman_device *device)
 512 {
 513         if (connman_element_ref(&device->element) == NULL)
 514                 return NULL;
 515
 516         return device;
 517 }
 518
 519 /**
 520  * connman_device_unref:
 521  * @device: device structure
 522  *
 523  * Decrease reference counter of device
 524  */
 525 void connman_device_unref(struct connman_device *device)
 526 {
 527         connman_element_unref(&device->element);
 528 }
 529
 530 const char *__connman_device_get_type(struct connman_device *device)
 531 {
 532         return type2string(device->type);
 533 }
 534
 535 /**
 536  * connman_device_get_type:
 537  * @device: device structure
 538  *
 539  * Get type of device
 540  */
 541 enum connman_device_type connman_device_get_type(struct connman_device *device)
 542 {
 543         return device->type;
 544 }
 545
 546 /**
 547  * connman_device_set_index:
 548  * @device: device structure
 549  * @index: index number
 550  *
 551  * Set index number of device
 552  */
 553 void connman_device_set_index(struct connman_device *device, int index)
 554 {
 555         device->element.index = index;
 556 }
 557
 558 /**
 559  * connman_device_get_index:
 560  * @device: device structure
 561  *
 562  * Get index number of device
 563  */
 564 int connman_device_get_index(struct connman_device *device)
 565 {
 566         return device->element.index;
 567 }
 568
 569 int __connman_device_get_phyindex(struct connman_device *device)
 570 {
 571         return device->phyindex;
 572 }
 573
 574 void __connman_device_set_phyindex(struct connman_device *device,
 575                                                         int phyindex)
 576 {
 577         device->phyindex = phyindex;
 578 }
 579
 580 /**
 581  * connman_device_set_interface:
 582  * @device: device structure
 583  * @interface: interface name
 584  *
 585  * Set interface name of device
 586  */
 587 void connman_device_set_interface(struct connman_device *device,
 588                                                 const char *interface)
 589 {
 590         g_free(device->element.devname);
 591         device->element.devname = g_strdup(interface);
 592
 593         g_free(device->interface);
 594         device->interface = g_strdup(interface);
 595
 596         if (device->name == NULL) {
 597                 const char *str = type2description(device->type);
 598                 if (str != NULL && device->interface != NULL)
 599                         device->name = g_strdup_printf("%s (%s)", str,
 600                                                         device->interface);
 601         }
 602 }
 603
 604 /**
 605  * connman_device_set_ident:
 606  * @device: device structure
 607  * @ident: unique identifier
 608  *
 609  * Set unique identifier of device
 610  */
 611 void connman_device_set_ident(struct connman_device *device,
 612                                                         const char *ident)
 613 {
 614         g_free(device->ident);
 615         device->ident = g_strdup(ident);
 616 }
 617
 618 const char *connman_device_get_ident(struct connman_device *device)
 619 {
 620         return device->ident;
 621 }
 622
 623 /**
 624  * connman_device_set_powered:
 625  * @device: device structure
 626  * @powered: powered state
 627  *
 628  * Change power state of device
 629  */
 630 int connman_device_set_powered(struct connman_device *device,
 631                                                 connman_bool_t powered)
 632 {
 633         int err;
 634
 635         DBG("driver %p powered %d", device, powered);
 636
 637         if (device->powered == powered) {
 638                 device->powered_pending = powered;
 639                 return -EALREADY;
 640         }
 641
 642         if (powered == TRUE)
 643                 err = __connman_device_enable(device);
 644         else
 645                 err = __connman_device_disable(device);
 646
 647         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 648                 return err;
 649
 650         device->powered = powered;
 651         device->powered_pending = powered;
 652
 653         if (device->powered == TRUE)
 654                 __connman_technology_enable_device(device);
 655         else
 656                 __connman_technology_disable_device(device);
 657
 658         if (device->offlinemode == TRUE && powered == TRUE)
 659                 return connman_device_set_powered(device, FALSE);
 660
 661         if (powered == FALSE)
 662                 return 0;
 663
 664         reset_scan_trigger(device);
 665
 666         if (device->driver && device->driver->scan)
 667                 device->driver->scan(device);
 668
 669         return 0;
 670 }
 671
 672 int __connman_device_set_blocked(struct connman_device *device,
 673                                                 connman_bool_t blocked)
 674 {
 675         connman_bool_t powered;
 676
 677         DBG("device %p blocked %d", device, blocked);
 678
 679         device->blocked = blocked;
 680
 681         if (device->offlinemode == TRUE)
 682                 return 0;
 683
 684         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 685
 686         if (blocked == FALSE)
 687                 powered = device->powered_persistent;
 688         else
 689                 powered = FALSE;
 690
 691         return set_powered(device, powered);
 692 }
 693
 694 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 695 {
 696         return device->blocked;
 697 }
 698
 699 int __connman_device_scan(struct connman_device *device)
 700 {
 701         if (!device->driver || !device->driver->scan)
 702                 return -EOPNOTSUPP;
 703
 704         if (device->powered == FALSE)
 705                 return -ENOLINK;
 706
 707         reset_scan_trigger(device);
 708
 709         return device->driver->scan(device);
 710 }
 711
 712 int __connman_device_enable_persistent(struct connman_device *device)
 713 {
 714         int err;
 715
 716         DBG("device %p", device);
 717
 718         device->powered_persistent = TRUE;
 719
 720         __connman_storage_save_device(device);
 721
 722         err = __connman_device_enable(device);
 723         if (err == 0 || err == -EINPROGRESS) {
 724                 device->offlinemode = FALSE;
 725                 if (__connman_profile_get_offlinemode() == TRUE) {
 726                         __connman_profile_set_offlinemode(FALSE, FALSE);
 727
 728                         __connman_profile_save_default();
 729                 }
 730         }
 731
 732         return err;
 733 }
 734
 735 int __connman_device_disable_persistent(struct connman_device *device)
 736 {
 737         DBG("device %p", device);
 738
 739         device->powered_persistent = FALSE;
 740
 741         __connman_storage_save_device(device);
 742
 743         return __connman_device_disable(device);
 744 }
 745
 746 int __connman_device_disconnect(struct connman_device *device)
 747 {
 748         GHashTableIter iter;
 749         gpointer key, value;
 750
 751         DBG("device %p", device);
 752
 753         connman_device_set_disconnected(device, TRUE);
 754
 755         g_hash_table_iter_init(&iter, device->networks);
 756
 757         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 758                 struct connman_network *network = value;
 759
 760                 if (__connman_network_get_connecting(network) == TRUE) {
 761                         /*
 762                          * Skip network in the process of connecting.
 763                          * This is a workaround for WiFi networks serviced
 764                          * by the supplicant plugin that hold a reference
 765                          * to the network.  If we disconnect the network
 766                          * here then the referenced object will not be
 767                          * registered and usage (like launching DHCP client)
 768                          * will fail.  There is nothing to be gained by
 769                          * removing the network here anyway.
 770                          */
 771                         connman_warn("Skipping disconnect of %s",
 772                                 connman_network_get_identifier(network));
 773                         continue;
 774                 }
 775
 776                 __connman_network_disconnect(network);
 777         }
 778
 779         return 0;
 780 }
 781
 782 static void mark_network_unavailable(gpointer key, gpointer value,
 783                                                         gpointer user_data)
 784 {
 785         struct connman_network *network = value;
 786
 787         if (connman_network_get_connected(network) == TRUE)
 788                 return;
 789
 790         connman_network_set_available(network, FALSE);
 791 }
 792
 793 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 794                                                         gpointer user_data)
 795 {
 796         struct connman_network *network = value;
 797
 798         if (connman_network_get_connected(network) == TRUE)
 799                 return FALSE;
 800
 801         if (connman_network_get_available(network) == TRUE)
 802                 return FALSE;
 803
 804         return TRUE;
 805 }
 806
 807 void __connman_device_cleanup_networks(struct connman_device *device)
 808 {
 809         g_hash_table_foreach_remove(device->networks,
 810                                         remove_unavailable_network, NULL);
 811 }
 812
 813 /**
 814  * connman_device_set_scanning:
 815  * @device: device structure
 816  * @scanning: scanning state
 817  *
 818  * Change scanning state of device
 819  */
 820 int connman_device_set_scanning(struct connman_device *device,
 821                                                 connman_bool_t scanning)
 822 {
 823         DBG("device %p scanning %d", device, scanning);
 824
 825         if (!device->driver || !device->driver->scan)
 826                 return -EINVAL;
 827
 828         if (device->scanning == scanning)
 829                 return -EALREADY;
 830
 831         device->scanning = scanning;
 832
 833         if (scanning == TRUE) {
 834                 reset_scan_trigger(device);
 835
 836                 g_hash_table_foreach(device->networks,
 837                                         mark_network_unavailable, NULL);
 838
 839                 return 0;
 840         }
 841
 842         __connman_device_cleanup_networks(device);
 843
 844         if (device->connections > 0)
 845                 return 0;
 846
 847         if (device->disconnected == TRUE)
 848                 return 0;
 849
 850         __connman_service_auto_connect();
 851
 852         return 0;
 853 }
 854
 855 /**
 856  * connman_device_set_disconnected:
 857  * @device: device structure
 858  * @disconnected: disconnected state
 859  *
 860  * Change disconnected state of device (only for device with networks)
 861  */
 862 int connman_device_set_disconnected(struct connman_device *device,
 863                                                 connman_bool_t disconnected)
 864 {
 865         DBG("device %p disconnected %d", device, disconnected);
 866
 867         if (device->disconnected == disconnected)
 868                 return -EALREADY;
 869
 870         device->disconnected = disconnected;
 871
 872         if (disconnected == TRUE)
 873                 force_scan_trigger(device);
 874
 875         return 0;
 876 }
 877
 878 /**
 879  * connman_device_get_disconnected:
 880  * @device: device structure
 881  *
 882  * Get device disconnected state
 883  */
 884 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 885 {
 886         return device->disconnected;
 887 }
 888
 889 /**
 890  * connman_device_set_string:
 891  * @device: device structure
 892  * @key: unique identifier
 893  * @value: string value
 894  *
 895  * Set string value for specific key
 896  */
 897 int connman_device_set_string(struct connman_device *device,
 898                                         const char *key, const char *value)
 899 {
 900         DBG("device %p key %s value %s", device, key, value);
 901
 902         if (g_str_equal(key, "Address") == TRUE) {
 903                 g_free(device->address);
 904                 device->address = g_strdup(value);
 905         } else if (g_str_equal(key, "Name") == TRUE) {
 906                 g_free(device->name);
 907                 device->name = g_strdup(value);
 908         } else if (g_str_equal(key, "Node") == TRUE) {
 909                 g_free(device->node);
 910                 device->node = g_strdup(value);
 911         }
 912
 913         return connman_element_set_string(&device->element, key, value);
 914 }
 915
 916 /**
 917  * connman_device_get_string:
 918  * @device: device structure
 919  * @key: unique identifier
 920  *
 921  * Get string value for specific key
 922  */
 923 const char *connman_device_get_string(struct connman_device *device,
 924                                                         const char *key)
 925 {
 926         DBG("device %p key %s", device, key);
 927
 928         if (g_str_equal(key, "Address") == TRUE)
 929                 return device->address;
 930         else if (g_str_equal(key, "Name") == TRUE)
 931                 return device->name;
 932         else if (g_str_equal(key, "Node") == TRUE)
 933                 return device->node;
 934         else if (g_str_equal(key, "Interface") == TRUE)
 935                 return device->interface;
 936
 937         return connman_element_get_string(&device->element, key);
 938 }
 939
 940 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 941 {
 942         struct connman_device *device = element->device;
 943         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 944         connman_bool_t powered;
 945
 946         DBG("element %p name %s", element, element->name);
 947
 948         if (device == NULL)
 949                 return;
 950
 951         device->offlinemode = offlinemode;
 952
 953         if (device->blocked == TRUE)
 954                 return;
 955
 956         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 957
 958         if (device->powered == powered)
 959                 return;
 960
 961         if (device->powered_persistent == FALSE)
 962                 powered = FALSE;
 963
 964         set_powered(device, powered);
 965 }
 966
 967 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 968 {
 969         DBG("offlinmode %d", offlinemode);
 970
 971         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 972                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 973
 974         __connman_notifier_offlinemode(offlinemode);
 975
 976         return 0;
 977 }
 978
 979 void __connman_device_increase_connections(struct connman_device *device)
 980 {
 981         if (device == NULL)
 982                 return;
 983
 984         device->connections++;
 985 }
 986
 987 void __connman_device_decrease_connections(struct connman_device *device)
 988 {
 989         if (device == NULL)
 990                 return;
 991
 992         device->connections--;
 993 }
 994
 995 /**
 996  * connman_device_add_network:
 997  * @device: device structure
 998  * @network: network structure
 999  *
1000  * Add new network to the device
1001  */
1002 int connman_device_add_network(struct connman_device *device,
1003                                         struct connman_network *network)
1004 {
1005         const char *identifier = connman_network_get_identifier(network);
1006         int err;
1007
1008         DBG("device %p network %p", device, network);
1009
1010         if (identifier == NULL)
1011                 return -EINVAL;
1012
1013         __connman_network_set_device(network, device);
1014
1015         err = connman_element_register((struct connman_element *) network,
1016                                                         &device->element);
1017         if (err < 0) {
1018                 __connman_network_set_device(network, NULL);
1019                 return err;
1020         }
1021
1022         g_hash_table_insert(device->networks, g_strdup(identifier),
1023                                                                 network);
1024
1025         return 0;
1026 }
1027
1028 /**
1029  * connman_device_get_network:
1030  * @device: device structure
1031  * @identifier: network identifier
1032  *
1033  * Get network for given identifier
1034  */
1035 struct connman_network *connman_device_get_network(struct connman_device *device,
1036                                                         const char *identifier)
1037 {
1038         DBG("device %p identifier %s", device, identifier);
1039
1040         return g_hash_table_lookup(device->networks, identifier);
1041 }
1042
1043 /**
1044  * connman_device_remove_network:
1045  * @device: device structure
1046  * @identifier: network identifier
1047  *
1048  * Remove network for given identifier
1049  */
1050 int connman_device_remove_network(struct connman_device *device,
1051                                                         const char *identifier)
1052 {
1053         DBG("device %p identifier %s", device, identifier);
1054
1055         g_hash_table_remove(device->networks, identifier);
1056
1057         return 0;
1058 }
1059
1060 void connman_device_remove_all_networks(struct connman_device *device)
1061 {
1062         g_hash_table_remove_all(device->networks);
1063 }
1064
1065 void __connman_device_set_network(struct connman_device *device,
1066                                         struct connman_network *network)
1067 {
1068         const char *name;
1069
1070         if (device == NULL)
1071                 return;
1072
1073         if (device->network == network)
1074                 return;
1075
1076         if (device->network != NULL)
1077                 connman_network_unref(device->network);
1078
1079         if (network != NULL) {
1080                 name = connman_network_get_string(network,
1081                                                 CONNMAN_PROPERTY_ID_NAME);
1082                 g_free(device->last_network);
1083                 device->last_network = g_strdup(name);
1084
1085                 device->network = connman_network_ref(network);
1086         } else {
1087                 g_free(device->last_network);
1088                 device->last_network = NULL;
1089
1090                 device->network = NULL;
1091         }
1092 }
1093
1094 void __connman_device_set_reconnect(struct connman_device *device,
1095                                                 connman_bool_t reconnect)
1096 {
1097         device->reconnect = reconnect;
1098 }
1099
1100 connman_bool_t  __connman_device_get_reconnect(
1101                                 struct connman_device *device)
1102 {
1103         return device->reconnect;
1104 }
1105
1106 /**
1107  * connman_device_register:
1108  * @device: device structure
1109  *
1110  * Register device with the system
1111  */
1112 int connman_device_register(struct connman_device *device)
1113 {
1114         __connman_storage_load_device(device);
1115
1116         device->offlinemode = __connman_profile_get_offlinemode();
1117
1118         return connman_element_register(&device->element, NULL);
1119 }
1120
1121 /**
1122  * connman_device_unregister:
1123  * @device: device structure
1124  *
1125  * Unregister device with the system
1126  */
1127 void connman_device_unregister(struct connman_device *device)
1128 {
1129         __connman_storage_save_device(device);
1130
1131         connman_element_unregister(&device->element);
1132 }
1133
1134 /**
1135  * connman_device_get_data:
1136  * @device: device structure
1137  *
1138  * Get private device data pointer
1139  */
1140 void *connman_device_get_data(struct connman_device *device)
1141 {
1142         return device->driver_data;
1143 }
1144
1145 /**
1146  * connman_device_set_data:
1147  * @device: device structure
1148  * @data: data pointer
1149  *
1150  * Set private device data pointer
1151  */
1152 void connman_device_set_data(struct connman_device *device, void *data)
1153 {
1154         device->driver_data = data;
1155 }
1156
1157 static gboolean match_driver(struct connman_device *device,
1158                                         struct connman_device_driver *driver)
1159 {
1160         if (device->type == driver->type ||
1161                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1162                 return TRUE;
1163
1164         return FALSE;
1165 }
1166
1167 static int device_probe(struct connman_element *element)
1168 {
1169         struct connman_device *device = element->device;
1170         GSList *list;
1171
1172         DBG("element %p name %s", element, element->name);
1173
1174         if (device == NULL)
1175                 return -ENODEV;
1176
1177         if (device->driver != NULL)
1178                 return -EALREADY;
1179
1180         for (list = driver_list; list; list = list->next) {
1181                 struct connman_device_driver *driver = list->data;
1182
1183                 if (match_driver(device, driver) == FALSE)
1184                         continue;
1185
1186                 DBG("driver %p name %s", driver, driver->name);
1187
1188                 if (driver->probe(device) == 0) {
1189                         device->driver = driver;
1190                         break;
1191                 }
1192         }
1193
1194         if (device->driver == NULL)
1195                 return -ENODEV;
1196
1197         return setup_device(device);
1198 }
1199
1200 static void device_remove(struct connman_element *element)
1201 {
1202         struct connman_device *device = element->device;
1203
1204         DBG("element %p name %s", element, element->name);
1205
1206         if (device == NULL)
1207                 return;
1208
1209         if (device->driver == NULL)
1210                 return;
1211
1212         remove_device(device);
1213 }
1214
1215 static struct connman_driver device_driver = {
1216         .name           = "device",
1217         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1218         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1219         .probe          = device_probe,
1220         .remove         = device_remove,
1221 };
1222
1223 static int device_load(struct connman_device *device)
1224 {
1225         const char *ident = __connman_profile_active_ident();
1226         GKeyFile *keyfile;
1227         GError *error = NULL;
1228         gchar *identifier;
1229         connman_bool_t powered;
1230         int val;
1231
1232         DBG("device %p", device);
1233
1234         keyfile = __connman_storage_open_profile(ident);
1235         if (keyfile == NULL)
1236                 return 0;
1237
1238         identifier = g_strdup_printf("device_%s", device->element.name);
1239         if (identifier == NULL)
1240                 goto done;
1241
1242         powered = g_key_file_get_boolean(keyfile, identifier,
1243                                                 "Powered", &error);
1244         if (error == NULL)
1245                 device->powered_persistent = powered;
1246         g_clear_error(&error);
1247
1248         val = g_key_file_get_integer(keyfile, identifier,
1249                                                 "ScanInterval", &error);
1250         if (error == NULL)
1251                 device->scan_interval = val;
1252         g_clear_error(&error);
1253
1254 done:
1255         g_free(identifier);
1256
1257         __connman_storage_close_profile(ident, keyfile, FALSE);
1258
1259         return 0;
1260 }
1261
1262 static int device_save(struct connman_device *device)
1263 {
1264         const char *ident = __connman_profile_active_ident();
1265         GKeyFile *keyfile;
1266         gchar *identifier;
1267
1268         DBG("device %p", device);
1269
1270         keyfile = __connman_storage_open_profile(ident);
1271         if (keyfile == NULL)
1272                 return 0;
1273
1274         identifier = g_strdup_printf("device_%s", device->element.name);
1275         if (identifier == NULL)
1276                 goto done;
1277
1278         g_key_file_set_boolean(keyfile, identifier,
1279                                         "Powered", device->powered_persistent);
1280
1281         g_key_file_set_integer(keyfile, identifier,
1282                                         "ScanInterval", device->scan_interval);
1283
1284 done:
1285         g_free(identifier);
1286
1287         __connman_storage_close_profile(ident, keyfile, TRUE);
1288
1289         return 0;
1290 }
1291
1292 static struct connman_storage device_storage = {
1293         .name           = "device",
1294         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1295         .device_load    = device_load,
1296         .device_save    = device_save,
1297 };
1298
1299 int __connman_device_init(void)
1300 {
1301         DBG("");
1302
1303         if (connman_storage_register(&device_storage) < 0)
1304                 connman_error("Failed to register device storage");
1305
1306         return connman_driver_register(&device_driver);
1307 }
1308
1309 void __connman_device_cleanup(void)
1310 {
1311         DBG("");
1312
1313         connman_driver_unregister(&device_driver);
1314
1315         connman_storage_unregister(&device_storage);
1316 }