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         connman_device_set_disconnected(device, FALSE);
 204         device->scanning = FALSE;
 205
 206         err = device->driver->enable(device);
 207         if (err < 0 && err != -EALREADY) {
 208                 if (err == -EINPROGRESS) {
 209                         device->powered_pending = TRUE;
 210                         device->offlinemode = FALSE;
 211                         if (__connman_profile_get_offlinemode() == TRUE)
 212                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 213                 }
 214                 return err;
 215         }
 216
 217         device->powered_pending = TRUE;
 218         device->powered = TRUE;
 219         device->offlinemode = FALSE;
 220         if (__connman_profile_get_offlinemode() == TRUE)
 221                 __connman_profile_set_offlinemode(FALSE, FALSE);
 222
 223         __connman_technology_enable_device(device);
 224
 225         return 0;
 226 }
 227
 228 int __connman_device_disable(struct connman_device *device)
 229 {
 230         int err;
 231
 232         DBG("device %p", device);
 233
 234         if (!device->driver || !device->driver->disable)
 235                 return -EOPNOTSUPP;
 236
 237         if (device->powered == FALSE)
 238                 return -ENOLINK;
 239
 240         if (device->powered_pending == FALSE)
 241                 return -EALREADY;
 242
 243         device->reconnect = FALSE;
 244
 245         clear_scan_trigger(device);
 246
 247         g_hash_table_remove_all(device->networks);
 248
 249         err = device->driver->disable(device);
 250         if (err < 0 && err != -EALREADY) {
 251                 if (err == -EINPROGRESS)
 252                         device->powered_pending = FALSE;
 253                 return err;
 254         }
 255
 256         device->connections = 0;
 257
 258         device->powered_pending = FALSE;
 259         device->powered = FALSE;
 260
 261         __connman_technology_disable_device(device);
 262
 263         return 0;
 264 }
 265
 266 static int set_powered(struct connman_device *device, connman_bool_t powered)
 267 {
 268         DBG("device %p powered %d", device, powered);
 269
 270         if (powered == TRUE)
 271                 return __connman_device_enable(device);
 272         else
 273                 return __connman_device_disable(device);
 274 }
 275
 276 static int setup_device(struct connman_device *device)
 277 {
 278         DBG("device %p", device);
 279
 280         __connman_technology_add_device(device);
 281
 282         if (device->offlinemode == FALSE &&
 283                                 device->powered_persistent == TRUE)
 284                 __connman_device_enable(device);
 285
 286         return 0;
 287 }
 288
 289 static void probe_driver(struct connman_element *element, gpointer user_data)
 290 {
 291         struct connman_device_driver *driver = user_data;
 292
 293         DBG("element %p name %s", element, element->name);
 294
 295         if (element->device == NULL)
 296                 return;
 297
 298         if (element->device->driver != NULL)
 299                 return;
 300
 301         if (driver->type != element->device->type)
 302                 return;
 303
 304         if (driver->probe(element->device) < 0)
 305                 return;
 306
 307         element->device->driver = driver;
 308
 309         __connman_element_set_driver(element);
 310
 311         setup_device(element->device);
 312 }
 313
 314 static void remove_device(struct connman_device *device)
 315 {
 316         DBG("device %p", device);
 317
 318         __connman_device_disable(device);
 319
 320         __connman_technology_remove_device(device);
 321
 322         if (device->driver->remove)
 323                 device->driver->remove(device);
 324
 325         device->driver = NULL;
 326 }
 327
 328 static void remove_driver(struct connman_element *element, gpointer user_data)
 329 {
 330         struct connman_device_driver *driver = user_data;
 331
 332         DBG("element %p name %s", element, element->name);
 333
 334         if (element->device == NULL)
 335                 return;
 336
 337         if (element->device->driver == driver)
 338                 remove_device(element->device);
 339 }
 340
 341 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 342 {
 343         if (device == NULL || device->driver == NULL)
 344                 return FALSE;
 345
 346         return TRUE;
 347 }
 348
 349 static GSList *driver_list = NULL;
 350
 351 static gint compare_priority(gconstpointer a, gconstpointer b)
 352 {
 353         const struct connman_device_driver *driver1 = a;
 354         const struct connman_device_driver *driver2 = b;
 355
 356         return driver2->priority - driver1->priority;
 357 }
 358
 359 /**
 360  * connman_device_driver_register:
 361  * @driver: device driver definition
 362  *
 363  * Register a new device driver
 364  *
 365  * Returns: %0 on success
 366  */
 367 int connman_device_driver_register(struct connman_device_driver *driver)
 368 {
 369         DBG("driver %p name %s", driver, driver->name);
 370
 371         driver_list = g_slist_insert_sorted(driver_list, driver,
 372                                                         compare_priority);
 373
 374         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 375                                                 probe_driver, driver);
 376
 377         return 0;
 378 }
 379
 380 /**
 381  * connman_device_driver_unregister:
 382  * @driver: device driver definition
 383  *
 384  * Remove a previously registered device driver
 385  */
 386 void connman_device_driver_unregister(struct connman_device_driver *driver)
 387 {
 388         DBG("driver %p name %s", driver, driver->name);
 389
 390         driver_list = g_slist_remove(driver_list, driver);
 391
 392         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 393                                                 remove_driver, driver);
 394 }
 395
 396 static void unregister_network(gpointer data)
 397 {
 398         struct connman_network *network = data;
 399
 400         DBG("network %p", network);
 401
 402         connman_element_unregister((struct connman_element *) network);
 403
 404         __connman_network_set_device(network, NULL);
 405
 406         connman_network_unref(network);
 407 }
 408
 409 static void device_destruct(struct connman_element *element)
 410 {
 411         struct connman_device *device = element->device;
 412
 413         DBG("element %p name %s", element, element->name);
 414
 415         clear_scan_trigger(device);
 416
 417         g_free(device->ident);
 418         g_free(device->node);
 419         g_free(device->name);
 420         g_free(device->address);
 421         g_free(device->interface);
 422
 423         g_free(device->last_network);
 424
 425         g_hash_table_destroy(device->networks);
 426         device->networks = NULL;
 427 }
 428
 429 /**
 430  * connman_device_create:
 431  * @node: device node name (for example an address)
 432  * @type: device type
 433  *
 434  * Allocate a new device of given #type and assign the #node name to it.
 435  *
 436  * Returns: a newly-allocated #connman_device structure
 437  */
 438 struct connman_device *connman_device_create(const char *node,
 439                                                 enum connman_device_type type)
 440 {
 441         struct connman_device *device;
 442         const char *str;
 443         enum connman_service_type service_type;
 444
 445         DBG("node %s type %d", node, type);
 446
 447         device = g_try_new0(struct connman_device, 1);
 448         if (device == NULL)
 449                 return NULL;
 450
 451         DBG("device %p", device);
 452
 453         __connman_element_initialize(&device->element);
 454
 455         device->element.name = g_strdup(node);
 456         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 457
 458         device->element.device = device;
 459         device->element.destruct = device_destruct;
 460
 461         str = type2string(type);
 462         if (str != NULL)
 463                 connman_element_set_string(&device->element,
 464                                         CONNMAN_PROPERTY_ID_TYPE, str);
 465
 466         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 467
 468         device->type = type;
 469         device->name = g_strdup(type2description(device->type));
 470
 471         device->powered_persistent = TRUE;
 472
 473         device->phyindex = -1;
 474
 475         service_type = __connman_device_get_service_type(device);
 476         device->blocked = __connman_technology_get_blocked(service_type);
 477
 478         switch (type) {
 479         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 480         case CONNMAN_DEVICE_TYPE_VENDOR:
 481                 device->scan_interval = 0;
 482                 break;
 483         case CONNMAN_DEVICE_TYPE_ETHERNET:
 484         case CONNMAN_DEVICE_TYPE_WIFI:
 485                 device->scan_interval = 300;
 486                 break;
 487         case CONNMAN_DEVICE_TYPE_WIMAX:
 488                 device->scan_interval = 0;
 489                 break;
 490         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 491                 device->scan_interval = 0;
 492                 break;
 493         case CONNMAN_DEVICE_TYPE_GPS:
 494                 device->scan_interval = 0;
 495                 break;
 496         case CONNMAN_DEVICE_TYPE_CELLULAR:
 497                 device->scan_interval = 0;
 498                 break;
 499         case CONNMAN_DEVICE_TYPE_GADGET:
 500                 device->scan_interval = 0;
 501                 break;
 502         }
 503
 504         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 505                                                 g_free, unregister_network);
 506
 507         return device;
 508 }
 509
 510 /**
 511  * connman_device_ref:
 512  * @device: device structure
 513  *
 514  * Increase reference counter of device
 515  */
 516 struct connman_device *connman_device_ref(struct connman_device *device)
 517 {
 518         if (connman_element_ref(&device->element) == NULL)
 519                 return NULL;
 520
 521         return device;
 522 }
 523
 524 /**
 525  * connman_device_unref:
 526  * @device: device structure
 527  *
 528  * Decrease reference counter of device
 529  */
 530 void connman_device_unref(struct connman_device *device)
 531 {
 532         connman_element_unref(&device->element);
 533 }
 534
 535 const char *__connman_device_get_type(struct connman_device *device)
 536 {
 537         return type2string(device->type);
 538 }
 539
 540 /**
 541  * connman_device_get_type:
 542  * @device: device structure
 543  *
 544  * Get type of device
 545  */
 546 enum connman_device_type connman_device_get_type(struct connman_device *device)
 547 {
 548         return device->type;
 549 }
 550
 551 /**
 552  * connman_device_set_index:
 553  * @device: device structure
 554  * @index: index number
 555  *
 556  * Set index number of device
 557  */
 558 void connman_device_set_index(struct connman_device *device, int index)
 559 {
 560         device->element.index = index;
 561 }
 562
 563 /**
 564  * connman_device_get_index:
 565  * @device: device structure
 566  *
 567  * Get index number of device
 568  */
 569 int connman_device_get_index(struct connman_device *device)
 570 {
 571         return device->element.index;
 572 }
 573
 574 int __connman_device_get_phyindex(struct connman_device *device)
 575 {
 576         return device->phyindex;
 577 }
 578
 579 void __connman_device_set_phyindex(struct connman_device *device,
 580                                                         int phyindex)
 581 {
 582         device->phyindex = phyindex;
 583 }
 584
 585 /**
 586  * connman_device_set_interface:
 587  * @device: device structure
 588  * @interface: interface name
 589  *
 590  * Set interface name of device
 591  */
 592 void connman_device_set_interface(struct connman_device *device,
 593                                                 const char *interface)
 594 {
 595         g_free(device->element.devname);
 596         device->element.devname = g_strdup(interface);
 597
 598         g_free(device->interface);
 599         device->interface = g_strdup(interface);
 600
 601         if (device->name == NULL) {
 602                 const char *str = type2description(device->type);
 603                 if (str != NULL && device->interface != NULL)
 604                         device->name = g_strdup_printf("%s (%s)", str,
 605                                                         device->interface);
 606         }
 607 }
 608
 609 /**
 610  * connman_device_set_ident:
 611  * @device: device structure
 612  * @ident: unique identifier
 613  *
 614  * Set unique identifier of device
 615  */
 616 void connman_device_set_ident(struct connman_device *device,
 617                                                         const char *ident)
 618 {
 619         g_free(device->ident);
 620         device->ident = g_strdup(ident);
 621 }
 622
 623 const char *connman_device_get_ident(struct connman_device *device)
 624 {
 625         return device->ident;
 626 }
 627
 628 /**
 629  * connman_device_set_powered:
 630  * @device: device structure
 631  * @powered: powered state
 632  *
 633  * Change power state of device
 634  */
 635 int connman_device_set_powered(struct connman_device *device,
 636                                                 connman_bool_t powered)
 637 {
 638         int err;
 639
 640         DBG("driver %p powered %d", device, powered);
 641
 642         if (device->powered == powered) {
 643                 device->powered_pending = powered;
 644                 return -EALREADY;
 645         }
 646
 647         if (powered == TRUE)
 648                 err = __connman_device_enable(device);
 649         else
 650                 err = __connman_device_disable(device);
 651
 652         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 653                 return err;
 654
 655         device->powered = powered;
 656         device->powered_pending = powered;
 657
 658         if (device->powered == TRUE)
 659                 __connman_technology_enable_device(device);
 660         else
 661                 __connman_technology_disable_device(device);
 662
 663         if (device->offlinemode == TRUE && powered == TRUE)
 664                 return connman_device_set_powered(device, FALSE);
 665
 666         if (powered == FALSE)
 667                 return 0;
 668
 669         reset_scan_trigger(device);
 670
 671         if (device->driver && device->driver->scan)
 672                 device->driver->scan(device);
 673
 674         return 0;
 675 }
 676
 677 int __connman_device_set_blocked(struct connman_device *device,
 678                                                 connman_bool_t blocked)
 679 {
 680         connman_bool_t powered;
 681
 682         DBG("device %p blocked %d", device, blocked);
 683
 684         device->blocked = blocked;
 685
 686         if (device->offlinemode == TRUE)
 687                 return 0;
 688
 689         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 690
 691         if (blocked == FALSE)
 692                 powered = device->powered_persistent;
 693         else
 694                 powered = FALSE;
 695
 696         return set_powered(device, powered);
 697 }
 698
 699 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 700 {
 701         return device->blocked;
 702 }
 703
 704 int __connman_device_scan(struct connman_device *device)
 705 {
 706         if (!device->driver || !device->driver->scan)
 707                 return -EOPNOTSUPP;
 708
 709         if (device->powered == FALSE)
 710                 return -ENOLINK;
 711
 712         reset_scan_trigger(device);
 713
 714         return device->driver->scan(device);
 715 }
 716
 717 int __connman_device_enable_persistent(struct connman_device *device)
 718 {
 719         int err;
 720
 721         DBG("device %p", device);
 722
 723         device->powered_persistent = TRUE;
 724
 725         __connman_storage_save_device(device);
 726
 727         err = __connman_device_enable(device);
 728         if (err == 0 || err == -EINPROGRESS) {
 729                 device->offlinemode = FALSE;
 730                 if (__connman_profile_get_offlinemode() == TRUE) {
 731                         __connman_profile_set_offlinemode(FALSE, FALSE);
 732
 733                         __connman_profile_save_default();
 734                 }
 735         }
 736
 737         return err;
 738 }
 739
 740 int __connman_device_disable_persistent(struct connman_device *device)
 741 {
 742         DBG("device %p", device);
 743
 744         device->powered_persistent = FALSE;
 745
 746         __connman_storage_save_device(device);
 747
 748         return __connman_device_disable(device);
 749 }
 750
 751 int __connman_device_disconnect(struct connman_device *device)
 752 {
 753         GHashTableIter iter;
 754         gpointer key, value;
 755
 756         DBG("device %p", device);
 757
 758         connman_device_set_disconnected(device, TRUE);
 759
 760         g_hash_table_iter_init(&iter, device->networks);
 761
 762         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 763                 struct connman_network *network = value;
 764
 765                 if (__connman_network_get_connecting(network) == TRUE) {
 766                         /*
 767                          * Skip network in the process of connecting.
 768                          * This is a workaround for WiFi networks serviced
 769                          * by the supplicant plugin that hold a reference
 770                          * to the network.  If we disconnect the network
 771                          * here then the referenced object will not be
 772                          * registered and usage (like launching DHCP client)
 773                          * will fail.  There is nothing to be gained by
 774                          * removing the network here anyway.
 775                          */
 776                         connman_warn("Skipping disconnect of %s",
 777                                 connman_network_get_identifier(network));
 778                         continue;
 779                 }
 780
 781                 __connman_network_disconnect(network);
 782         }
 783
 784         return 0;
 785 }
 786
 787 static void mark_network_unavailable(gpointer key, gpointer value,
 788                                                         gpointer user_data)
 789 {
 790         struct connman_network *network = value;
 791
 792         if (connman_network_get_connected(network) == TRUE)
 793                 return;
 794
 795         connman_network_set_available(network, FALSE);
 796 }
 797
 798 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 799                                                         gpointer user_data)
 800 {
 801         struct connman_network *network = value;
 802
 803         if (connman_network_get_connected(network) == TRUE)
 804                 return FALSE;
 805
 806         if (connman_network_get_available(network) == TRUE)
 807                 return FALSE;
 808
 809         return TRUE;
 810 }
 811
 812 void __connman_device_cleanup_networks(struct connman_device *device)
 813 {
 814         g_hash_table_foreach_remove(device->networks,
 815                                         remove_unavailable_network, NULL);
 816 }
 817
 818 /**
 819  * connman_device_set_scanning:
 820  * @device: device structure
 821  * @scanning: scanning state
 822  *
 823  * Change scanning state of device
 824  */
 825 int connman_device_set_scanning(struct connman_device *device,
 826                                                 connman_bool_t scanning)
 827 {
 828         DBG("device %p scanning %d", device, scanning);
 829
 830         if (!device->driver || !device->driver->scan)
 831                 return -EINVAL;
 832
 833         if (device->scanning == scanning)
 834                 return -EALREADY;
 835
 836         device->scanning = scanning;
 837
 838         if (scanning == TRUE) {
 839                 reset_scan_trigger(device);
 840
 841                 g_hash_table_foreach(device->networks,
 842                                         mark_network_unavailable, NULL);
 843
 844                 return 0;
 845         }
 846
 847         __connman_device_cleanup_networks(device);
 848
 849         if (device->connections > 0)
 850                 return 0;
 851
 852         if (device->disconnected == TRUE)
 853                 return 0;
 854
 855         __connman_service_auto_connect();
 856
 857         return 0;
 858 }
 859
 860 /**
 861  * connman_device_set_disconnected:
 862  * @device: device structure
 863  * @disconnected: disconnected state
 864  *
 865  * Change disconnected state of device (only for device with networks)
 866  */
 867 int connman_device_set_disconnected(struct connman_device *device,
 868                                                 connman_bool_t disconnected)
 869 {
 870         DBG("device %p disconnected %d", device, disconnected);
 871
 872         if (device->disconnected == disconnected)
 873                 return -EALREADY;
 874
 875         device->disconnected = disconnected;
 876
 877         if (disconnected == TRUE)
 878                 force_scan_trigger(device);
 879
 880         return 0;
 881 }
 882
 883 /**
 884  * connman_device_get_disconnected:
 885  * @device: device structure
 886  *
 887  * Get device disconnected state
 888  */
 889 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 890 {
 891         return device->disconnected;
 892 }
 893
 894 /**
 895  * connman_device_set_string:
 896  * @device: device structure
 897  * @key: unique identifier
 898  * @value: string value
 899  *
 900  * Set string value for specific key
 901  */
 902 int connman_device_set_string(struct connman_device *device,
 903                                         const char *key, const char *value)
 904 {
 905         DBG("device %p key %s value %s", device, key, value);
 906
 907         if (g_str_equal(key, "Address") == TRUE) {
 908                 g_free(device->address);
 909                 device->address = g_strdup(value);
 910         } else if (g_str_equal(key, "Name") == TRUE) {
 911                 g_free(device->name);
 912                 device->name = g_strdup(value);
 913         } else if (g_str_equal(key, "Node") == TRUE) {
 914                 g_free(device->node);
 915                 device->node = g_strdup(value);
 916         }
 917
 918         return connman_element_set_string(&device->element, key, value);
 919 }
 920
 921 /**
 922  * connman_device_get_string:
 923  * @device: device structure
 924  * @key: unique identifier
 925  *
 926  * Get string value for specific key
 927  */
 928 const char *connman_device_get_string(struct connman_device *device,
 929                                                         const char *key)
 930 {
 931         DBG("device %p key %s", device, key);
 932
 933         if (g_str_equal(key, "Address") == TRUE)
 934                 return device->address;
 935         else if (g_str_equal(key, "Name") == TRUE)
 936                 return device->name;
 937         else if (g_str_equal(key, "Node") == TRUE)
 938                 return device->node;
 939         else if (g_str_equal(key, "Interface") == TRUE)
 940                 return device->interface;
 941
 942         return connman_element_get_string(&device->element, key);
 943 }
 944
 945 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 946 {
 947         struct connman_device *device = element->device;
 948         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 949         connman_bool_t powered;
 950
 951         DBG("element %p name %s", element, element->name);
 952
 953         if (device == NULL)
 954                 return;
 955
 956         device->offlinemode = offlinemode;
 957
 958         if (device->blocked == TRUE)
 959                 return;
 960
 961         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 962
 963         if (device->powered == powered)
 964                 return;
 965
 966         if (device->powered_persistent == FALSE)
 967                 powered = FALSE;
 968
 969         set_powered(device, powered);
 970 }
 971
 972 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 973 {
 974         DBG("offlinmode %d", offlinemode);
 975
 976         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 977                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 978
 979         __connman_notifier_offlinemode(offlinemode);
 980
 981         return 0;
 982 }
 983
 984 void __connman_device_increase_connections(struct connman_device *device)
 985 {
 986         if (device == NULL)
 987                 return;
 988
 989         device->connections++;
 990 }
 991
 992 void __connman_device_decrease_connections(struct connman_device *device)
 993 {
 994         if (device == NULL)
 995                 return;
 996
 997         device->connections--;
 998 }
 999
1000 /**
1001  * connman_device_add_network:
1002  * @device: device structure
1003  * @network: network structure
1004  *
1005  * Add new network to the device
1006  */
1007 int connman_device_add_network(struct connman_device *device,
1008                                         struct connman_network *network)
1009 {
1010         const char *identifier = connman_network_get_identifier(network);
1011         int err;
1012
1013         DBG("device %p network %p", device, network);
1014
1015         if (identifier == NULL)
1016                 return -EINVAL;
1017
1018         __connman_network_set_device(network, device);
1019
1020         err = connman_element_register((struct connman_element *) network,
1021                                                         &device->element);
1022         if (err < 0) {
1023                 __connman_network_set_device(network, NULL);
1024                 return err;
1025         }
1026
1027         g_hash_table_insert(device->networks, g_strdup(identifier),
1028                                                                 network);
1029
1030         return 0;
1031 }
1032
1033 /**
1034  * connman_device_get_network:
1035  * @device: device structure
1036  * @identifier: network identifier
1037  *
1038  * Get network for given identifier
1039  */
1040 struct connman_network *connman_device_get_network(struct connman_device *device,
1041                                                         const char *identifier)
1042 {
1043         DBG("device %p identifier %s", device, identifier);
1044
1045         return g_hash_table_lookup(device->networks, identifier);
1046 }
1047
1048 /**
1049  * connman_device_remove_network:
1050  * @device: device structure
1051  * @identifier: network identifier
1052  *
1053  * Remove network for given identifier
1054  */
1055 int connman_device_remove_network(struct connman_device *device,
1056                                                         const char *identifier)
1057 {
1058         DBG("device %p identifier %s", device, identifier);
1059
1060         g_hash_table_remove(device->networks, identifier);
1061
1062         return 0;
1063 }
1064
1065 void connman_device_remove_all_networks(struct connman_device *device)
1066 {
1067         g_hash_table_remove_all(device->networks);
1068 }
1069
1070 void __connman_device_set_network(struct connman_device *device,
1071                                         struct connman_network *network)
1072 {
1073         const char *name;
1074
1075         if (device == NULL)
1076                 return;
1077
1078         if (device->network == network)
1079                 return;
1080
1081         if (device->network != NULL)
1082                 connman_network_unref(device->network);
1083
1084         if (network != NULL) {
1085                 name = connman_network_get_string(network,
1086                                                 CONNMAN_PROPERTY_ID_NAME);
1087                 g_free(device->last_network);
1088                 device->last_network = g_strdup(name);
1089
1090                 device->network = connman_network_ref(network);
1091         } else {
1092                 g_free(device->last_network);
1093                 device->last_network = NULL;
1094
1095                 device->network = NULL;
1096         }
1097 }
1098
1099 void __connman_device_set_reconnect(struct connman_device *device,
1100                                                 connman_bool_t reconnect)
1101 {
1102         device->reconnect = reconnect;
1103 }
1104
1105 connman_bool_t  __connman_device_get_reconnect(
1106                                 struct connman_device *device)
1107 {
1108         return device->reconnect;
1109 }
1110
1111 /**
1112  * connman_device_register:
1113  * @device: device structure
1114  *
1115  * Register device with the system
1116  */
1117 int connman_device_register(struct connman_device *device)
1118 {
1119         __connman_storage_load_device(device);
1120
1121         device->offlinemode = __connman_profile_get_offlinemode();
1122
1123         return connman_element_register(&device->element, NULL);
1124 }
1125
1126 /**
1127  * connman_device_unregister:
1128  * @device: device structure
1129  *
1130  * Unregister device with the system
1131  */
1132 void connman_device_unregister(struct connman_device *device)
1133 {
1134         __connman_storage_save_device(device);
1135
1136         connman_element_unregister(&device->element);
1137 }
1138
1139 /**
1140  * connman_device_get_data:
1141  * @device: device structure
1142  *
1143  * Get private device data pointer
1144  */
1145 void *connman_device_get_data(struct connman_device *device)
1146 {
1147         return device->driver_data;
1148 }
1149
1150 /**
1151  * connman_device_set_data:
1152  * @device: device structure
1153  * @data: data pointer
1154  *
1155  * Set private device data pointer
1156  */
1157 void connman_device_set_data(struct connman_device *device, void *data)
1158 {
1159         device->driver_data = data;
1160 }
1161
1162 static gboolean match_driver(struct connman_device *device,
1163                                         struct connman_device_driver *driver)
1164 {
1165         if (device->type == driver->type ||
1166                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1167                 return TRUE;
1168
1169         return FALSE;
1170 }
1171
1172 static int device_probe(struct connman_element *element)
1173 {
1174         struct connman_device *device = element->device;
1175         GSList *list;
1176
1177         DBG("element %p name %s", element, element->name);
1178
1179         if (device == NULL)
1180                 return -ENODEV;
1181
1182         if (device->driver != NULL)
1183                 return -EALREADY;
1184
1185         for (list = driver_list; list; list = list->next) {
1186                 struct connman_device_driver *driver = list->data;
1187
1188                 if (match_driver(device, driver) == FALSE)
1189                         continue;
1190
1191                 DBG("driver %p name %s", driver, driver->name);
1192
1193                 if (driver->probe(device) == 0) {
1194                         device->driver = driver;
1195                         break;
1196                 }
1197         }
1198
1199         if (device->driver == NULL)
1200                 return -ENODEV;
1201
1202         return setup_device(device);
1203 }
1204
1205 static void device_remove(struct connman_element *element)
1206 {
1207         struct connman_device *device = element->device;
1208
1209         DBG("element %p name %s", element, element->name);
1210
1211         if (device == NULL)
1212                 return;
1213
1214         if (device->driver == NULL)
1215                 return;
1216
1217         remove_device(device);
1218 }
1219
1220 static struct connman_driver device_driver = {
1221         .name           = "device",
1222         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1223         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1224         .probe          = device_probe,
1225         .remove         = device_remove,
1226 };
1227
1228 static int device_load(struct connman_device *device)
1229 {
1230         const char *ident = __connman_profile_active_ident();
1231         GKeyFile *keyfile;
1232         GError *error = NULL;
1233         gchar *identifier;
1234         connman_bool_t powered;
1235         int val;
1236
1237         DBG("device %p", device);
1238
1239         keyfile = __connman_storage_open_profile(ident);
1240         if (keyfile == NULL)
1241                 return 0;
1242
1243         identifier = g_strdup_printf("device_%s", device->element.name);
1244         if (identifier == NULL)
1245                 goto done;
1246
1247         powered = g_key_file_get_boolean(keyfile, identifier,
1248                                                 "Powered", &error);
1249         if (error == NULL)
1250                 device->powered_persistent = powered;
1251         g_clear_error(&error);
1252
1253         val = g_key_file_get_integer(keyfile, identifier,
1254                                                 "ScanInterval", &error);
1255         if (error == NULL)
1256                 device->scan_interval = val;
1257         g_clear_error(&error);
1258
1259 done:
1260         g_free(identifier);
1261
1262         __connman_storage_close_profile(ident, keyfile, FALSE);
1263
1264         return 0;
1265 }
1266
1267 static int device_save(struct connman_device *device)
1268 {
1269         const char *ident = __connman_profile_active_ident();
1270         GKeyFile *keyfile;
1271         gchar *identifier;
1272
1273         DBG("device %p", device);
1274
1275         keyfile = __connman_storage_open_profile(ident);
1276         if (keyfile == NULL)
1277                 return 0;
1278
1279         identifier = g_strdup_printf("device_%s", device->element.name);
1280         if (identifier == NULL)
1281                 goto done;
1282
1283         g_key_file_set_boolean(keyfile, identifier,
1284                                         "Powered", device->powered_persistent);
1285
1286         g_key_file_set_integer(keyfile, identifier,
1287                                         "ScanInterval", device->scan_interval);
1288
1289 done:
1290         g_free(identifier);
1291
1292         __connman_storage_close_profile(ident, keyfile, TRUE);
1293
1294         return 0;
1295 }
1296
1297 static struct connman_storage device_storage = {
1298         .name           = "device",
1299         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1300         .device_load    = device_load,
1301         .device_save    = device_save,
1302 };
1303
1304 int __connman_device_init(void)
1305 {
1306         DBG("");
1307
1308         if (connman_storage_register(&device_storage) < 0)
1309                 connman_error("Failed to register device storage");
1310
1311         return connman_driver_register(&device_driver);
1312 }
1313
1314 void __connman_device_cleanup(void)
1315 {
1316         DBG("");
1317
1318         connman_driver_unregister(&device_driver);
1319
1320         connman_storage_unregister(&device_storage);
1321 }