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         connman_uint16_t backoff_interval;
  44         char *name;
  45         char *node;
  46         char *address;
  47         char *interface;
  48         char *ident;
  49         int phyindex;
  50         unsigned int connections;
  51         guint scan_timeout;
  52
  53         struct connman_device_driver *driver;
  54         void *driver_data;
  55
  56         char *last_network;
  57         struct connman_network *network;
  58         GHashTable *networks;
  59 };
  60
  61 #define SCAN_INITIAL_DELAY 10
  62
  63 static gboolean device_scan_trigger(gpointer user_data)
  64 {
  65         struct connman_device *device = user_data;
  66
  67         DBG("device %p", device);
  68
  69         if (device->driver == NULL) {
  70                 device->scan_timeout = 0;
  71                 return FALSE;
  72         }
  73
  74         if (device->driver->scan)
  75                 device->driver->scan(device);
  76
  77         return TRUE;
  78 }
  79
  80 static void clear_scan_trigger(struct connman_device *device)
  81 {
  82         if (device->scan_timeout > 0) {
  83                 g_source_remove(device->scan_timeout);
  84                 device->scan_timeout = 0;
  85         }
  86 }
  87
  88 static void reset_scan_trigger(struct connman_device *device)
  89 {
  90         clear_scan_trigger(device);
  91
  92         if (device->scan_interval > 0) {
  93                 guint interval;
  94
  95                 if (g_hash_table_size(device->networks) == 0) {
  96                         if (device->backoff_interval >= device->scan_interval)
  97                                 device->backoff_interval = SCAN_INITIAL_DELAY;
  98                         interval = device->backoff_interval;
  99                 } else
 100                         interval = device->scan_interval;
 101
 102                 DBG("interval %d", interval);
 103
 104                 device->scan_timeout = g_timeout_add_seconds(interval,
 105                                         device_scan_trigger, device);
 106
 107                 device->backoff_interval *= 2;
 108                 if (device->backoff_interval > device->scan_interval)
 109                         device->backoff_interval = device->scan_interval;
 110         }
 111 }
 112
 113 static void force_scan_trigger(struct connman_device *device)
 114 {
 115         clear_scan_trigger(device);
 116
 117         device->scan_timeout = g_timeout_add_seconds(5,
 118                                         device_scan_trigger, device);
 119 }
 120
 121 void connman_device_schedule_scan(struct connman_device *device)
 122 {
 123         reset_scan_trigger(device);
 124 }
 125
 126 static const char *type2description(enum connman_device_type type)
 127 {
 128         switch (type) {
 129         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 130         case CONNMAN_DEVICE_TYPE_VENDOR:
 131                 break;
 132         case CONNMAN_DEVICE_TYPE_ETHERNET:
 133                 return "Ethernet";
 134         case CONNMAN_DEVICE_TYPE_WIFI:
 135                 return "Wireless";
 136         case CONNMAN_DEVICE_TYPE_WIMAX:
 137                 return "WiMAX";
 138         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 139                 return "Bluetooth";
 140         case CONNMAN_DEVICE_TYPE_GPS:
 141                 return "GPS";
 142         case CONNMAN_DEVICE_TYPE_CELLULAR:
 143                 return "Cellular";
 144         case CONNMAN_DEVICE_TYPE_GADGET:
 145                 return "Gadget";
 146
 147         }
 148
 149         return NULL;
 150 }
 151
 152 static const char *type2string(enum connman_device_type type)
 153 {
 154         switch (type) {
 155         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 156         case CONNMAN_DEVICE_TYPE_VENDOR:
 157                 break;
 158         case CONNMAN_DEVICE_TYPE_ETHERNET:
 159                 return "ethernet";
 160         case CONNMAN_DEVICE_TYPE_WIFI:
 161                 return "wifi";
 162         case CONNMAN_DEVICE_TYPE_WIMAX:
 163                 return "wimax";
 164         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 165                 return "bluetooth";
 166         case CONNMAN_DEVICE_TYPE_GPS:
 167                 return "gps";
 168         case CONNMAN_DEVICE_TYPE_CELLULAR:
 169                 return "cellular";
 170         case CONNMAN_DEVICE_TYPE_GADGET:
 171                 return "gadget";
 172
 173         }
 174
 175         return NULL;
 176 }
 177
 178 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 179 {
 180         enum connman_device_type type = connman_device_get_type(device);
 181
 182         switch (type) {
 183         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 184         case CONNMAN_DEVICE_TYPE_VENDOR:
 185         case CONNMAN_DEVICE_TYPE_GPS:
 186                 break;
 187         case CONNMAN_DEVICE_TYPE_ETHERNET:
 188                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 189         case CONNMAN_DEVICE_TYPE_WIFI:
 190                 return CONNMAN_SERVICE_TYPE_WIFI;
 191         case CONNMAN_DEVICE_TYPE_WIMAX:
 192                 return CONNMAN_SERVICE_TYPE_WIMAX;
 193         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 194                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 195         case CONNMAN_DEVICE_TYPE_CELLULAR:
 196                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 197         case CONNMAN_DEVICE_TYPE_GADGET:
 198                 return CONNMAN_SERVICE_TYPE_GADGET;
 199
 200         }
 201
 202         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 203 }
 204
 205 int __connman_device_enable(struct connman_device *device)
 206 {
 207         int err;
 208         enum connman_service_type type;
 209
 210         DBG("device %p %d", device, device->blocked);
 211
 212         if (!device->driver || !device->driver->enable)
 213                 return -EOPNOTSUPP;
 214
 215         if (device->powered_pending == TRUE)
 216                 return -EALREADY;
 217
 218         if (device->blocked == TRUE)
 219                 return -ENOLINK;
 220
 221         connman_device_set_disconnected(device, FALSE);
 222         device->scanning = FALSE;
 223
 224         err = device->driver->enable(device);
 225         if (err < 0 && err != -EALREADY) {
 226                 if (err == -EINPROGRESS) {
 227                         device->powered_pending = TRUE;
 228                         device->offlinemode = FALSE;
 229                         if (__connman_profile_get_offlinemode() == TRUE)
 230                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 231                 }
 232                 return err;
 233         }
 234
 235         device->powered_pending = TRUE;
 236         device->powered = TRUE;
 237         device->offlinemode = FALSE;
 238         if (__connman_profile_get_offlinemode() == TRUE)
 239                 __connman_profile_set_offlinemode(FALSE, FALSE);
 240
 241         type = __connman_device_get_service_type(device);
 242         __connman_technology_enable(type);
 243
 244         return 0;
 245 }
 246
 247 int __connman_device_disable(struct connman_device *device)
 248 {
 249         int err;
 250         enum connman_service_type type;
 251
 252         DBG("device %p", device);
 253
 254         if (!device->driver || !device->driver->disable)
 255                 return -EOPNOTSUPP;
 256
 257         if (device->powered == FALSE)
 258                 return -ENOLINK;
 259
 260         if (device->powered_pending == FALSE)
 261                 return -EALREADY;
 262
 263         device->reconnect = FALSE;
 264
 265         clear_scan_trigger(device);
 266
 267         g_hash_table_remove_all(device->networks);
 268
 269         err = device->driver->disable(device);
 270         if (err < 0 && err != -EALREADY) {
 271                 if (err == -EINPROGRESS)
 272                         device->powered_pending = FALSE;
 273                 return err;
 274         }
 275
 276         device->connections = 0;
 277
 278         device->powered_pending = FALSE;
 279         device->powered = FALSE;
 280
 281         type = __connman_device_get_service_type(device);
 282         __connman_technology_disable(type);
 283
 284         return 0;
 285 }
 286
 287 static int set_powered(struct connman_device *device, connman_bool_t powered)
 288 {
 289         DBG("device %p powered %d", device, powered);
 290
 291         if (powered == TRUE)
 292                 return __connman_device_enable(device);
 293         else
 294                 return __connman_device_disable(device);
 295 }
 296
 297 static int setup_device(struct connman_device *device)
 298 {
 299         DBG("device %p", device);
 300
 301         __connman_technology_add_device(device);
 302
 303         if (device->offlinemode == FALSE &&
 304                                 device->powered_persistent == TRUE)
 305                 __connman_device_enable(device);
 306
 307         return 0;
 308 }
 309
 310 static void probe_driver(struct connman_element *element, gpointer user_data)
 311 {
 312         struct connman_device_driver *driver = user_data;
 313
 314         DBG("element %p name %s", element, element->name);
 315
 316         if (element->device == NULL)
 317                 return;
 318
 319         if (element->device->driver != NULL)
 320                 return;
 321
 322         if (driver->type != element->device->type)
 323                 return;
 324
 325         if (driver->probe(element->device) < 0)
 326                 return;
 327
 328         element->device->driver = driver;
 329
 330         __connman_element_set_driver(element);
 331
 332         setup_device(element->device);
 333 }
 334
 335 static void remove_device(struct connman_device *device)
 336 {
 337         DBG("device %p", device);
 338
 339         __connman_device_disable(device);
 340
 341         __connman_technology_remove_device(device);
 342
 343         if (device->driver->remove)
 344                 device->driver->remove(device);
 345
 346         device->driver = NULL;
 347 }
 348
 349 static void remove_driver(struct connman_element *element, gpointer user_data)
 350 {
 351         struct connman_device_driver *driver = user_data;
 352
 353         DBG("element %p name %s", element, element->name);
 354
 355         if (element->device == NULL)
 356                 return;
 357
 358         if (element->device->driver == driver)
 359                 remove_device(element->device);
 360 }
 361
 362 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 363 {
 364         if (device == NULL || device->driver == NULL)
 365                 return FALSE;
 366
 367         return TRUE;
 368 }
 369
 370 static GSList *driver_list = NULL;
 371
 372 static gint compare_priority(gconstpointer a, gconstpointer b)
 373 {
 374         const struct connman_device_driver *driver1 = a;
 375         const struct connman_device_driver *driver2 = b;
 376
 377         return driver2->priority - driver1->priority;
 378 }
 379
 380 /**
 381  * connman_device_driver_register:
 382  * @driver: device driver definition
 383  *
 384  * Register a new device driver
 385  *
 386  * Returns: %0 on success
 387  */
 388 int connman_device_driver_register(struct connman_device_driver *driver)
 389 {
 390         DBG("driver %p name %s", driver, driver->name);
 391
 392         driver_list = g_slist_insert_sorted(driver_list, driver,
 393                                                         compare_priority);
 394
 395         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 396                                                 probe_driver, driver);
 397
 398         return 0;
 399 }
 400
 401 /**
 402  * connman_device_driver_unregister:
 403  * @driver: device driver definition
 404  *
 405  * Remove a previously registered device driver
 406  */
 407 void connman_device_driver_unregister(struct connman_device_driver *driver)
 408 {
 409         DBG("driver %p name %s", driver, driver->name);
 410
 411         driver_list = g_slist_remove(driver_list, driver);
 412
 413         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 414                                                 remove_driver, driver);
 415 }
 416
 417 static void unregister_network(gpointer data)
 418 {
 419         struct connman_network *network = data;
 420
 421         DBG("network %p", network);
 422
 423         connman_element_unregister((struct connman_element *) network);
 424
 425         __connman_network_set_device(network, NULL);
 426
 427         connman_network_unref(network);
 428 }
 429
 430 static void device_destruct(struct connman_element *element)
 431 {
 432         struct connman_device *device = element->device;
 433
 434         DBG("element %p name %s", element, element->name);
 435
 436         clear_scan_trigger(device);
 437
 438         g_free(device->ident);
 439         g_free(device->node);
 440         g_free(device->name);
 441         g_free(device->address);
 442         g_free(device->interface);
 443
 444         g_free(device->last_network);
 445
 446         g_hash_table_destroy(device->networks);
 447         device->networks = NULL;
 448 }
 449
 450 /**
 451  * connman_device_create:
 452  * @node: device node name (for example an address)
 453  * @type: device type
 454  *
 455  * Allocate a new device of given #type and assign the #node name to it.
 456  *
 457  * Returns: a newly-allocated #connman_device structure
 458  */
 459 struct connman_device *connman_device_create(const char *node,
 460                                                 enum connman_device_type type)
 461 {
 462         struct connman_device *device;
 463         const char *str;
 464         enum connman_service_type service_type;
 465         connman_bool_t bg_scan;
 466
 467         DBG("node %s type %d", node, type);
 468
 469         device = g_try_new0(struct connman_device, 1);
 470         if (device == NULL)
 471                 return NULL;
 472
 473         DBG("device %p", device);
 474
 475         bg_scan = connman_setting_get_bool("BackgroundScanning");
 476
 477         __connman_element_initialize(&device->element);
 478
 479         device->element.name = g_strdup(node);
 480         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 481
 482         device->element.device = device;
 483         device->element.destruct = device_destruct;
 484
 485         str = type2string(type);
 486         if (str != NULL)
 487                 connman_element_set_string(&device->element,
 488                                         CONNMAN_PROPERTY_ID_TYPE, str);
 489
 490         device->type = type;
 491         device->name = g_strdup(type2description(device->type));
 492
 493         device->powered_persistent = TRUE;
 494
 495         device->phyindex = -1;
 496
 497         service_type = __connman_device_get_service_type(device);
 498         device->blocked = __connman_technology_get_blocked(service_type);
 499         device->backoff_interval = SCAN_INITIAL_DELAY;
 500
 501         switch (type) {
 502         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 503         case CONNMAN_DEVICE_TYPE_ETHERNET:
 504         case CONNMAN_DEVICE_TYPE_WIMAX:
 505         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 506         case CONNMAN_DEVICE_TYPE_CELLULAR:
 507         case CONNMAN_DEVICE_TYPE_GPS:
 508         case CONNMAN_DEVICE_TYPE_GADGET:
 509         case CONNMAN_DEVICE_TYPE_VENDOR:
 510                 device->scan_interval = 0;
 511                 break;
 512         case CONNMAN_DEVICE_TYPE_WIFI:
 513                 if (bg_scan == TRUE)
 514                         device->scan_interval = 300;
 515                 else
 516                         device->scan_interval = 0;
 517                 break;
 518         }
 519
 520         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 521                                                 g_free, unregister_network);
 522
 523         return device;
 524 }
 525
 526 /**
 527  * connman_device_ref:
 528  * @device: device structure
 529  *
 530  * Increase reference counter of device
 531  */
 532 struct connman_device *connman_device_ref(struct connman_device *device)
 533 {
 534         if (connman_element_ref(&device->element) == NULL)
 535                 return NULL;
 536
 537         return device;
 538 }
 539
 540 /**
 541  * connman_device_unref:
 542  * @device: device structure
 543  *
 544  * Decrease reference counter of device
 545  */
 546 void connman_device_unref(struct connman_device *device)
 547 {
 548         connman_element_unref(&device->element);
 549 }
 550
 551 const char *__connman_device_get_type(struct connman_device *device)
 552 {
 553         return type2string(device->type);
 554 }
 555
 556 /**
 557  * connman_device_get_type:
 558  * @device: device structure
 559  *
 560  * Get type of device
 561  */
 562 enum connman_device_type connman_device_get_type(struct connman_device *device)
 563 {
 564         return device->type;
 565 }
 566
 567 /**
 568  * connman_device_set_index:
 569  * @device: device structure
 570  * @index: index number
 571  *
 572  * Set index number of device
 573  */
 574 void connman_device_set_index(struct connman_device *device, int index)
 575 {
 576         device->element.index = index;
 577 }
 578
 579 /**
 580  * connman_device_get_index:
 581  * @device: device structure
 582  *
 583  * Get index number of device
 584  */
 585 int connman_device_get_index(struct connman_device *device)
 586 {
 587         return device->element.index;
 588 }
 589
 590 int __connman_device_get_phyindex(struct connman_device *device)
 591 {
 592         return device->phyindex;
 593 }
 594
 595 void __connman_device_set_phyindex(struct connman_device *device,
 596                                                         int phyindex)
 597 {
 598         device->phyindex = phyindex;
 599 }
 600
 601 /**
 602  * connman_device_set_interface:
 603  * @device: device structure
 604  * @interface: interface name
 605  *
 606  * Set interface name of device
 607  */
 608 void connman_device_set_interface(struct connman_device *device,
 609                                                 const char *interface)
 610 {
 611         g_free(device->element.devname);
 612         device->element.devname = g_strdup(interface);
 613
 614         g_free(device->interface);
 615         device->interface = g_strdup(interface);
 616
 617         if (device->name == NULL) {
 618                 const char *str = type2description(device->type);
 619                 if (str != NULL && device->interface != NULL)
 620                         device->name = g_strdup_printf("%s (%s)", str,
 621                                                         device->interface);
 622         }
 623 }
 624
 625 /**
 626  * connman_device_set_ident:
 627  * @device: device structure
 628  * @ident: unique identifier
 629  *
 630  * Set unique identifier of device
 631  */
 632 void connman_device_set_ident(struct connman_device *device,
 633                                                         const char *ident)
 634 {
 635         g_free(device->ident);
 636         device->ident = g_strdup(ident);
 637 }
 638
 639 const char *connman_device_get_ident(struct connman_device *device)
 640 {
 641         return device->ident;
 642 }
 643
 644 /**
 645  * connman_device_set_powered:
 646  * @device: device structure
 647  * @powered: powered state
 648  *
 649  * Change power state of device
 650  */
 651 int connman_device_set_powered(struct connman_device *device,
 652                                                 connman_bool_t powered)
 653 {
 654         int err;
 655         enum connman_service_type type;
 656
 657         DBG("driver %p powered %d", device, powered);
 658
 659         if (device->powered == powered) {
 660                 device->powered_pending = powered;
 661                 return -EALREADY;
 662         }
 663
 664         if (powered == TRUE)
 665                 err = __connman_device_enable(device);
 666         else
 667                 err = __connman_device_disable(device);
 668
 669         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 670                 return err;
 671
 672         device->powered = powered;
 673         device->powered_pending = powered;
 674
 675         type = __connman_device_get_service_type(device);
 676
 677         if (device->powered == TRUE)
 678                 __connman_technology_enable(type);
 679         else
 680                 __connman_technology_disable(type);
 681
 682         if (device->offlinemode == TRUE && powered == TRUE)
 683                 return connman_device_set_powered(device, FALSE);
 684
 685         if (powered == FALSE)
 686                 return 0;
 687
 688         reset_scan_trigger(device);
 689
 690         if (device->driver && device->driver->scan)
 691                 device->driver->scan(device);
 692
 693         return 0;
 694 }
 695
 696 int __connman_device_set_blocked(struct connman_device *device,
 697                                                 connman_bool_t blocked)
 698 {
 699         connman_bool_t powered;
 700
 701         DBG("device %p blocked %d", device, blocked);
 702
 703         device->blocked = blocked;
 704
 705         if (device->offlinemode == TRUE)
 706                 return 0;
 707
 708         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 709
 710         if (blocked == FALSE)
 711                 powered = device->powered_persistent;
 712         else
 713                 powered = FALSE;
 714
 715         return set_powered(device, powered);
 716 }
 717
 718 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 719 {
 720         return device->blocked;
 721 }
 722
 723 int __connman_device_scan(struct connman_device *device)
 724 {
 725         if (!device->driver || !device->driver->scan)
 726                 return -EOPNOTSUPP;
 727
 728         if (device->powered == FALSE)
 729                 return -ENOLINK;
 730
 731         reset_scan_trigger(device);
 732
 733         return device->driver->scan(device);
 734 }
 735
 736 int __connman_device_enable_persistent(struct connman_device *device)
 737 {
 738         int err;
 739
 740         DBG("device %p", device);
 741
 742         device->powered_persistent = TRUE;
 743
 744         __connman_storage_save_device(device);
 745
 746         err = __connman_device_enable(device);
 747         if (err == 0 || err == -EINPROGRESS) {
 748                 device->offlinemode = FALSE;
 749                 if (__connman_profile_get_offlinemode() == TRUE) {
 750                         __connman_profile_set_offlinemode(FALSE, FALSE);
 751
 752                         __connman_profile_save_default();
 753                 }
 754         }
 755
 756         return err;
 757 }
 758
 759 int __connman_device_disable_persistent(struct connman_device *device)
 760 {
 761         DBG("device %p", device);
 762
 763         device->powered_persistent = FALSE;
 764
 765         __connman_storage_save_device(device);
 766
 767         return __connman_device_disable(device);
 768 }
 769
 770 int __connman_device_disconnect(struct connman_device *device)
 771 {
 772         GHashTableIter iter;
 773         gpointer key, value;
 774
 775         DBG("device %p", device);
 776
 777         connman_device_set_disconnected(device, TRUE);
 778
 779         g_hash_table_iter_init(&iter, device->networks);
 780
 781         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 782                 struct connman_network *network = value;
 783
 784                 if (connman_network_get_connecting(network) == TRUE) {
 785                         /*
 786                          * Skip network in the process of connecting.
 787                          * This is a workaround for WiFi networks serviced
 788                          * by the supplicant plugin that hold a reference
 789                          * to the network.  If we disconnect the network
 790                          * here then the referenced object will not be
 791                          * registered and usage (like launching DHCP client)
 792                          * will fail.  There is nothing to be gained by
 793                          * removing the network here anyway.
 794                          */
 795                         connman_warn("Skipping disconnect of %s",
 796                                 connman_network_get_identifier(network));
 797                         continue;
 798                 }
 799
 800                 __connman_network_disconnect(network);
 801         }
 802
 803         return 0;
 804 }
 805
 806 static void mark_network_available(gpointer key, gpointer value,
 807                                                         gpointer user_data)
 808 {
 809         struct connman_network *network = value;
 810
 811         connman_network_set_available(network, TRUE);
 812 }
 813
 814 static void mark_network_unavailable(gpointer key, gpointer value,
 815                                                         gpointer user_data)
 816 {
 817         struct connman_network *network = value;
 818
 819         if (connman_network_get_connected(network) == TRUE)
 820                 return;
 821
 822         connman_network_set_available(network, FALSE);
 823 }
 824
 825 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 826                                                         gpointer user_data)
 827 {
 828         struct connman_network *network = value;
 829
 830         if (connman_network_get_connected(network) == TRUE)
 831                 return FALSE;
 832
 833         if (connman_network_get_available(network) == TRUE)
 834                 return FALSE;
 835
 836         return TRUE;
 837 }
 838
 839 void __connman_device_cleanup_networks(struct connman_device *device)
 840 {
 841         g_hash_table_foreach_remove(device->networks,
 842                                         remove_unavailable_network, NULL);
 843 }
 844
 845 connman_bool_t __connman_device_scanning(struct connman_device *device)
 846 {
 847         return device->scanning;
 848 }
 849
 850 void connman_device_reset_scanning(struct connman_device *device)
 851 {
 852         device->scanning = FALSE;
 853
 854         g_hash_table_foreach(device->networks,
 855                                 mark_network_available, NULL);
 856
 857 }
 858
 859 /**
 860  * connman_device_set_scanning:
 861  * @device: device structure
 862  * @scanning: scanning state
 863  *
 864  * Change scanning state of device
 865  */
 866 int connman_device_set_scanning(struct connman_device *device,
 867                                                 connman_bool_t scanning)
 868 {
 869         DBG("device %p scanning %d", device, scanning);
 870
 871         if (!device->driver || !device->driver->scan)
 872                 return -EINVAL;
 873
 874         if (device->scanning == scanning)
 875                 return -EALREADY;
 876
 877         device->scanning = scanning;
 878
 879         if (scanning == TRUE) {
 880                 reset_scan_trigger(device);
 881
 882                 g_hash_table_foreach(device->networks,
 883                                         mark_network_unavailable, NULL);
 884
 885                 return 0;
 886         }
 887
 888         __connman_device_cleanup_networks(device);
 889
 890         if (device->connections > 0)
 891                 return 0;
 892
 893         __connman_service_auto_connect();
 894
 895         return 0;
 896 }
 897
 898 /**
 899  * connman_device_set_disconnected:
 900  * @device: device structure
 901  * @disconnected: disconnected state
 902  *
 903  * Change disconnected state of device (only for device with networks)
 904  */
 905 int connman_device_set_disconnected(struct connman_device *device,
 906                                                 connman_bool_t disconnected)
 907 {
 908         DBG("device %p disconnected %d", device, disconnected);
 909
 910         if (device->disconnected == disconnected)
 911                 return -EALREADY;
 912
 913         device->disconnected = disconnected;
 914
 915         if (disconnected == TRUE)
 916                 force_scan_trigger(device);
 917
 918         return 0;
 919 }
 920
 921 /**
 922  * connman_device_get_disconnected:
 923  * @device: device structure
 924  *
 925  * Get device disconnected state
 926  */
 927 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 928 {
 929         return device->disconnected;
 930 }
 931
 932 /**
 933  * connman_device_set_string:
 934  * @device: device structure
 935  * @key: unique identifier
 936  * @value: string value
 937  *
 938  * Set string value for specific key
 939  */
 940 int connman_device_set_string(struct connman_device *device,
 941                                         const char *key, const char *value)
 942 {
 943         DBG("device %p key %s value %s", device, key, value);
 944
 945         if (g_str_equal(key, "Address") == TRUE) {
 946                 g_free(device->address);
 947                 device->address = g_strdup(value);
 948         } else if (g_str_equal(key, "Name") == TRUE) {
 949                 g_free(device->name);
 950                 device->name = g_strdup(value);
 951         } else if (g_str_equal(key, "Node") == TRUE) {
 952                 g_free(device->node);
 953                 device->node = g_strdup(value);
 954         }
 955
 956         return connman_element_set_string(&device->element, key, value);
 957 }
 958
 959 /**
 960  * connman_device_get_string:
 961  * @device: device structure
 962  * @key: unique identifier
 963  *
 964  * Get string value for specific key
 965  */
 966 const char *connman_device_get_string(struct connman_device *device,
 967                                                         const char *key)
 968 {
 969         DBG("device %p key %s", device, key);
 970
 971         if (g_str_equal(key, "Address") == TRUE)
 972                 return device->address;
 973         else if (g_str_equal(key, "Name") == TRUE)
 974                 return device->name;
 975         else if (g_str_equal(key, "Node") == TRUE)
 976                 return device->node;
 977         else if (g_str_equal(key, "Interface") == TRUE)
 978                 return device->interface;
 979
 980         return connman_element_get_string(&device->element, key);
 981 }
 982
 983 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 984 {
 985         struct connman_device *device = element->device;
 986         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 987         connman_bool_t powered;
 988
 989         DBG("element %p name %s", element, element->name);
 990
 991         if (device == NULL)
 992                 return;
 993
 994         device->offlinemode = offlinemode;
 995
 996         if (device->blocked == TRUE)
 997                 return;
 998
 999         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1000
1001         if (device->powered == powered)
1002                 return;
1003
1004         if (device->powered_persistent == FALSE)
1005                 powered = FALSE;
1006
1007         set_powered(device, powered);
1008 }
1009
1010 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1011 {
1012         DBG("offlinmode %d", offlinemode);
1013
1014         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
1015                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
1016
1017         __connman_notifier_offlinemode(offlinemode);
1018
1019         return 0;
1020 }
1021
1022 void __connman_device_increase_connections(struct connman_device *device)
1023 {
1024         if (device == NULL)
1025                 return;
1026
1027         device->connections++;
1028 }
1029
1030 void __connman_device_decrease_connections(struct connman_device *device)
1031 {
1032         if (device == NULL)
1033                 return;
1034
1035         device->connections--;
1036
1037         if (device->connections == 0)
1038                 device->backoff_interval = SCAN_INITIAL_DELAY;
1039 }
1040
1041 /**
1042  * connman_device_add_network:
1043  * @device: device structure
1044  * @network: network structure
1045  *
1046  * Add new network to the device
1047  */
1048 int connman_device_add_network(struct connman_device *device,
1049                                         struct connman_network *network)
1050 {
1051         const char *identifier = connman_network_get_identifier(network);
1052         int err;
1053
1054         DBG("device %p network %p", device, network);
1055
1056         if (identifier == NULL)
1057                 return -EINVAL;
1058
1059         __connman_network_set_device(network, device);
1060
1061         err = connman_element_register((struct connman_element *) network,
1062                                                         &device->element);
1063         if (err < 0) {
1064                 __connman_network_set_device(network, NULL);
1065                 return err;
1066         }
1067
1068         g_hash_table_insert(device->networks, g_strdup(identifier),
1069                                                                 network);
1070
1071         return 0;
1072 }
1073
1074 /**
1075  * connman_device_get_network:
1076  * @device: device structure
1077  * @identifier: network identifier
1078  *
1079  * Get network for given identifier
1080  */
1081 struct connman_network *connman_device_get_network(struct connman_device *device,
1082                                                         const char *identifier)
1083 {
1084         DBG("device %p identifier %s", device, identifier);
1085
1086         return g_hash_table_lookup(device->networks, identifier);
1087 }
1088
1089 /**
1090  * connman_device_remove_network:
1091  * @device: device structure
1092  * @identifier: network identifier
1093  *
1094  * Remove network for given identifier
1095  */
1096 int connman_device_remove_network(struct connman_device *device,
1097                                                         const char *identifier)
1098 {
1099         DBG("device %p identifier %s", device, identifier);
1100
1101         g_hash_table_remove(device->networks, identifier);
1102
1103         return 0;
1104 }
1105
1106 void connman_device_remove_all_networks(struct connman_device *device)
1107 {
1108         g_hash_table_remove_all(device->networks);
1109 }
1110
1111 void __connman_device_set_network(struct connman_device *device,
1112                                         struct connman_network *network)
1113 {
1114         const char *name;
1115
1116         if (device == NULL)
1117                 return;
1118
1119         if (device->network == network)
1120                 return;
1121
1122         if (device->network != NULL)
1123                 connman_network_unref(device->network);
1124
1125         if (network != NULL) {
1126                 name = connman_network_get_string(network,
1127                                                 CONNMAN_PROPERTY_ID_NAME);
1128                 g_free(device->last_network);
1129                 device->last_network = g_strdup(name);
1130
1131                 device->network = connman_network_ref(network);
1132         } else {
1133                 g_free(device->last_network);
1134                 device->last_network = NULL;
1135
1136                 device->network = NULL;
1137         }
1138 }
1139
1140 void __connman_device_set_reconnect(struct connman_device *device,
1141                                                 connman_bool_t reconnect)
1142 {
1143         device->reconnect = reconnect;
1144 }
1145
1146 connman_bool_t  __connman_device_get_reconnect(
1147                                 struct connman_device *device)
1148 {
1149         return device->reconnect;
1150 }
1151
1152 /**
1153  * connman_device_register:
1154  * @device: device structure
1155  *
1156  * Register device with the system
1157  */
1158 int connman_device_register(struct connman_device *device)
1159 {
1160         __connman_storage_load_device(device);
1161
1162         device->offlinemode = __connman_profile_get_offlinemode();
1163
1164         return connman_element_register(&device->element, NULL);
1165 }
1166
1167 /**
1168  * connman_device_unregister:
1169  * @device: device structure
1170  *
1171  * Unregister device with the system
1172  */
1173 void connman_device_unregister(struct connman_device *device)
1174 {
1175         __connman_storage_save_device(device);
1176
1177         connman_element_unregister(&device->element);
1178 }
1179
1180 /**
1181  * connman_device_get_data:
1182  * @device: device structure
1183  *
1184  * Get private device data pointer
1185  */
1186 void *connman_device_get_data(struct connman_device *device)
1187 {
1188         return device->driver_data;
1189 }
1190
1191 /**
1192  * connman_device_set_data:
1193  * @device: device structure
1194  * @data: data pointer
1195  *
1196  * Set private device data pointer
1197  */
1198 void connman_device_set_data(struct connman_device *device, void *data)
1199 {
1200         device->driver_data = data;
1201 }
1202
1203 static gboolean match_driver(struct connman_device *device,
1204                                         struct connman_device_driver *driver)
1205 {
1206         if (device->type == driver->type ||
1207                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1208                 return TRUE;
1209
1210         return FALSE;
1211 }
1212
1213 static int device_probe(struct connman_element *element)
1214 {
1215         struct connman_device *device = element->device;
1216         GSList *list;
1217
1218         DBG("element %p name %s", element, element->name);
1219
1220         if (device == NULL)
1221                 return -ENODEV;
1222
1223         if (device->driver != NULL)
1224                 return -EALREADY;
1225
1226         for (list = driver_list; list; list = list->next) {
1227                 struct connman_device_driver *driver = list->data;
1228
1229                 if (match_driver(device, driver) == FALSE)
1230                         continue;
1231
1232                 DBG("driver %p name %s", driver, driver->name);
1233
1234                 if (driver->probe(device) == 0) {
1235                         device->driver = driver;
1236                         break;
1237                 }
1238         }
1239
1240         if (device->driver == NULL)
1241                 return -ENODEV;
1242
1243         return setup_device(device);
1244 }
1245
1246 static void device_remove(struct connman_element *element)
1247 {
1248         struct connman_device *device = element->device;
1249
1250         DBG("element %p name %s", element, element->name);
1251
1252         if (device == NULL)
1253                 return;
1254
1255         if (device->driver == NULL)
1256                 return;
1257
1258         remove_device(device);
1259 }
1260
1261 static struct connman_driver device_driver = {
1262         .name           = "device",
1263         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1264         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1265         .probe          = device_probe,
1266         .remove         = device_remove,
1267 };
1268
1269 static int device_load(struct connman_device *device)
1270 {
1271         const char *ident = __connman_profile_active_ident();
1272         GKeyFile *keyfile;
1273         GError *error = NULL;
1274         gchar *identifier;
1275         connman_bool_t powered;
1276
1277         DBG("device %p", device);
1278
1279         keyfile = __connman_storage_open_profile(ident);
1280         if (keyfile == NULL)
1281                 return 0;
1282
1283         identifier = g_strdup_printf("device_%s", device->element.name);
1284         if (identifier == NULL)
1285                 goto done;
1286
1287         powered = g_key_file_get_boolean(keyfile, identifier,
1288                                                 "Powered", &error);
1289         if (error == NULL)
1290                 device->powered_persistent = powered;
1291         g_clear_error(&error);
1292
1293 done:
1294         g_free(identifier);
1295
1296         __connman_storage_close_profile(ident, keyfile, FALSE);
1297
1298         return 0;
1299 }
1300
1301 static int device_save(struct connman_device *device)
1302 {
1303         const char *ident = __connman_profile_active_ident();
1304         GKeyFile *keyfile;
1305         gchar *identifier;
1306
1307         DBG("device %p", device);
1308
1309         keyfile = __connman_storage_open_profile(ident);
1310         if (keyfile == NULL)
1311                 return 0;
1312
1313         identifier = g_strdup_printf("device_%s", device->element.name);
1314         if (identifier == NULL)
1315                 goto done;
1316
1317         g_key_file_set_boolean(keyfile, identifier,
1318                                         "Powered", device->powered_persistent);
1319
1320 done:
1321         g_free(identifier);
1322
1323         __connman_storage_close_profile(ident, keyfile, TRUE);
1324
1325         return 0;
1326 }
1327
1328 static struct connman_storage device_storage = {
1329         .name           = "device",
1330         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1331         .device_load    = device_load,
1332         .device_save    = device_save,
1333 };
1334
1335 int __connman_device_init(void)
1336 {
1337         DBG("");
1338
1339         if (connman_storage_register(&device_storage) < 0)
1340                 connman_error("Failed to register device storage");
1341
1342         return connman_driver_register(&device_driver);
1343 }
1344
1345 void __connman_device_cleanup(void)
1346 {
1347         DBG("");
1348
1349         connman_driver_unregister(&device_driver);
1350
1351         connman_storage_unregister(&device_storage);
1352 }