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->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 491
 492         device->type = type;
 493         device->name = g_strdup(type2description(device->type));
 494
 495         device->powered_persistent = TRUE;
 496
 497         device->phyindex = -1;
 498
 499         service_type = __connman_device_get_service_type(device);
 500         device->blocked = __connman_technology_get_blocked(service_type);
 501         device->backoff_interval = SCAN_INITIAL_DELAY;
 502
 503         switch (type) {
 504         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 505         case CONNMAN_DEVICE_TYPE_ETHERNET:
 506         case CONNMAN_DEVICE_TYPE_WIMAX:
 507         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 508         case CONNMAN_DEVICE_TYPE_CELLULAR:
 509         case CONNMAN_DEVICE_TYPE_GPS:
 510         case CONNMAN_DEVICE_TYPE_GADGET:
 511         case CONNMAN_DEVICE_TYPE_VENDOR:
 512                 device->scan_interval = 0;
 513                 break;
 514         case CONNMAN_DEVICE_TYPE_WIFI:
 515                 if (bg_scan == TRUE)
 516                         device->scan_interval = 300;
 517                 else
 518                         device->scan_interval = 0;
 519                 break;
 520         }
 521
 522         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 523                                                 g_free, unregister_network);
 524
 525         return device;
 526 }
 527
 528 /**
 529  * connman_device_ref:
 530  * @device: device structure
 531  *
 532  * Increase reference counter of device
 533  */
 534 struct connman_device *connman_device_ref(struct connman_device *device)
 535 {
 536         if (connman_element_ref(&device->element) == NULL)
 537                 return NULL;
 538
 539         return device;
 540 }
 541
 542 /**
 543  * connman_device_unref:
 544  * @device: device structure
 545  *
 546  * Decrease reference counter of device
 547  */
 548 void connman_device_unref(struct connman_device *device)
 549 {
 550         connman_element_unref(&device->element);
 551 }
 552
 553 const char *__connman_device_get_type(struct connman_device *device)
 554 {
 555         return type2string(device->type);
 556 }
 557
 558 /**
 559  * connman_device_get_type:
 560  * @device: device structure
 561  *
 562  * Get type of device
 563  */
 564 enum connman_device_type connman_device_get_type(struct connman_device *device)
 565 {
 566         return device->type;
 567 }
 568
 569 /**
 570  * connman_device_set_index:
 571  * @device: device structure
 572  * @index: index number
 573  *
 574  * Set index number of device
 575  */
 576 void connman_device_set_index(struct connman_device *device, int index)
 577 {
 578         device->element.index = index;
 579 }
 580
 581 /**
 582  * connman_device_get_index:
 583  * @device: device structure
 584  *
 585  * Get index number of device
 586  */
 587 int connman_device_get_index(struct connman_device *device)
 588 {
 589         return device->element.index;
 590 }
 591
 592 int __connman_device_get_phyindex(struct connman_device *device)
 593 {
 594         return device->phyindex;
 595 }
 596
 597 void __connman_device_set_phyindex(struct connman_device *device,
 598                                                         int phyindex)
 599 {
 600         device->phyindex = phyindex;
 601 }
 602
 603 /**
 604  * connman_device_set_interface:
 605  * @device: device structure
 606  * @interface: interface name
 607  *
 608  * Set interface name of device
 609  */
 610 void connman_device_set_interface(struct connman_device *device,
 611                                                 const char *interface)
 612 {
 613         g_free(device->element.devname);
 614         device->element.devname = g_strdup(interface);
 615
 616         g_free(device->interface);
 617         device->interface = g_strdup(interface);
 618
 619         if (device->name == NULL) {
 620                 const char *str = type2description(device->type);
 621                 if (str != NULL && device->interface != NULL)
 622                         device->name = g_strdup_printf("%s (%s)", str,
 623                                                         device->interface);
 624         }
 625 }
 626
 627 /**
 628  * connman_device_set_ident:
 629  * @device: device structure
 630  * @ident: unique identifier
 631  *
 632  * Set unique identifier of device
 633  */
 634 void connman_device_set_ident(struct connman_device *device,
 635                                                         const char *ident)
 636 {
 637         g_free(device->ident);
 638         device->ident = g_strdup(ident);
 639 }
 640
 641 const char *connman_device_get_ident(struct connman_device *device)
 642 {
 643         return device->ident;
 644 }
 645
 646 /**
 647  * connman_device_set_powered:
 648  * @device: device structure
 649  * @powered: powered state
 650  *
 651  * Change power state of device
 652  */
 653 int connman_device_set_powered(struct connman_device *device,
 654                                                 connman_bool_t powered)
 655 {
 656         int err;
 657         enum connman_service_type type;
 658
 659         DBG("driver %p powered %d", device, powered);
 660
 661         if (device->powered == powered) {
 662                 device->powered_pending = powered;
 663                 return -EALREADY;
 664         }
 665
 666         if (powered == TRUE)
 667                 err = __connman_device_enable(device);
 668         else
 669                 err = __connman_device_disable(device);
 670
 671         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 672                 return err;
 673
 674         device->powered = powered;
 675         device->powered_pending = powered;
 676
 677         type = __connman_device_get_service_type(device);
 678
 679         if (device->powered == TRUE)
 680                 __connman_technology_enable(type);
 681         else
 682                 __connman_technology_disable(type);
 683
 684         if (device->offlinemode == TRUE && powered == TRUE)
 685                 return connman_device_set_powered(device, FALSE);
 686
 687         if (powered == FALSE)
 688                 return 0;
 689
 690         reset_scan_trigger(device);
 691
 692         if (device->driver && device->driver->scan)
 693                 device->driver->scan(device);
 694
 695         return 0;
 696 }
 697
 698 int __connman_device_set_blocked(struct connman_device *device,
 699                                                 connman_bool_t blocked)
 700 {
 701         connman_bool_t powered;
 702
 703         DBG("device %p blocked %d", device, blocked);
 704
 705         device->blocked = blocked;
 706
 707         if (device->offlinemode == TRUE)
 708                 return 0;
 709
 710         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 711
 712         if (blocked == FALSE)
 713                 powered = device->powered_persistent;
 714         else
 715                 powered = FALSE;
 716
 717         return set_powered(device, powered);
 718 }
 719
 720 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 721 {
 722         return device->blocked;
 723 }
 724
 725 int __connman_device_scan(struct connman_device *device)
 726 {
 727         if (!device->driver || !device->driver->scan)
 728                 return -EOPNOTSUPP;
 729
 730         if (device->powered == FALSE)
 731                 return -ENOLINK;
 732
 733         reset_scan_trigger(device);
 734
 735         return device->driver->scan(device);
 736 }
 737
 738 int __connman_device_enable_persistent(struct connman_device *device)
 739 {
 740         int err;
 741
 742         DBG("device %p", device);
 743
 744         device->powered_persistent = TRUE;
 745
 746         __connman_storage_save_device(device);
 747
 748         err = __connman_device_enable(device);
 749         if (err == 0 || err == -EINPROGRESS) {
 750                 device->offlinemode = FALSE;
 751                 if (__connman_profile_get_offlinemode() == TRUE) {
 752                         __connman_profile_set_offlinemode(FALSE, FALSE);
 753
 754                         __connman_profile_save_default();
 755                 }
 756         }
 757
 758         return err;
 759 }
 760
 761 int __connman_device_disable_persistent(struct connman_device *device)
 762 {
 763         DBG("device %p", device);
 764
 765         device->powered_persistent = FALSE;
 766
 767         __connman_storage_save_device(device);
 768
 769         return __connman_device_disable(device);
 770 }
 771
 772 int __connman_device_disconnect(struct connman_device *device)
 773 {
 774         GHashTableIter iter;
 775         gpointer key, value;
 776
 777         DBG("device %p", device);
 778
 779         connman_device_set_disconnected(device, TRUE);
 780
 781         g_hash_table_iter_init(&iter, device->networks);
 782
 783         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 784                 struct connman_network *network = value;
 785
 786                 if (connman_network_get_connecting(network) == TRUE) {
 787                         /*
 788                          * Skip network in the process of connecting.
 789                          * This is a workaround for WiFi networks serviced
 790                          * by the supplicant plugin that hold a reference
 791                          * to the network.  If we disconnect the network
 792                          * here then the referenced object will not be
 793                          * registered and usage (like launching DHCP client)
 794                          * will fail.  There is nothing to be gained by
 795                          * removing the network here anyway.
 796                          */
 797                         connman_warn("Skipping disconnect of %s",
 798                                 connman_network_get_identifier(network));
 799                         continue;
 800                 }
 801
 802                 __connman_network_disconnect(network);
 803         }
 804
 805         return 0;
 806 }
 807
 808 static void mark_network_available(gpointer key, gpointer value,
 809                                                         gpointer user_data)
 810 {
 811         struct connman_network *network = value;
 812
 813         connman_network_set_available(network, TRUE);
 814 }
 815
 816 static void mark_network_unavailable(gpointer key, gpointer value,
 817                                                         gpointer user_data)
 818 {
 819         struct connman_network *network = value;
 820
 821         if (connman_network_get_connected(network) == TRUE)
 822                 return;
 823
 824         connman_network_set_available(network, FALSE);
 825 }
 826
 827 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 828                                                         gpointer user_data)
 829 {
 830         struct connman_network *network = value;
 831
 832         if (connman_network_get_connected(network) == TRUE)
 833                 return FALSE;
 834
 835         if (connman_network_get_available(network) == TRUE)
 836                 return FALSE;
 837
 838         return TRUE;
 839 }
 840
 841 void __connman_device_cleanup_networks(struct connman_device *device)
 842 {
 843         g_hash_table_foreach_remove(device->networks,
 844                                         remove_unavailable_network, NULL);
 845 }
 846
 847 connman_bool_t __connman_device_scanning(struct connman_device *device)
 848 {
 849         return device->scanning;
 850 }
 851
 852 void connman_device_reset_scanning(struct connman_device *device)
 853 {
 854         device->scanning = FALSE;
 855
 856         g_hash_table_foreach(device->networks,
 857                                 mark_network_available, NULL);
 858
 859 }
 860
 861 /**
 862  * connman_device_set_scanning:
 863  * @device: device structure
 864  * @scanning: scanning state
 865  *
 866  * Change scanning state of device
 867  */
 868 int connman_device_set_scanning(struct connman_device *device,
 869                                                 connman_bool_t scanning)
 870 {
 871         DBG("device %p scanning %d", device, scanning);
 872
 873         if (!device->driver || !device->driver->scan)
 874                 return -EINVAL;
 875
 876         if (device->scanning == scanning)
 877                 return -EALREADY;
 878
 879         device->scanning = scanning;
 880
 881         if (scanning == TRUE) {
 882                 reset_scan_trigger(device);
 883
 884                 g_hash_table_foreach(device->networks,
 885                                         mark_network_unavailable, NULL);
 886
 887                 return 0;
 888         }
 889
 890         __connman_device_cleanup_networks(device);
 891
 892         if (device->connections > 0)
 893                 return 0;
 894
 895         __connman_service_auto_connect();
 896
 897         return 0;
 898 }
 899
 900 /**
 901  * connman_device_set_disconnected:
 902  * @device: device structure
 903  * @disconnected: disconnected state
 904  *
 905  * Change disconnected state of device (only for device with networks)
 906  */
 907 int connman_device_set_disconnected(struct connman_device *device,
 908                                                 connman_bool_t disconnected)
 909 {
 910         DBG("device %p disconnected %d", device, disconnected);
 911
 912         if (device->disconnected == disconnected)
 913                 return -EALREADY;
 914
 915         device->disconnected = disconnected;
 916
 917         if (disconnected == TRUE)
 918                 force_scan_trigger(device);
 919
 920         return 0;
 921 }
 922
 923 /**
 924  * connman_device_get_disconnected:
 925  * @device: device structure
 926  *
 927  * Get device disconnected state
 928  */
 929 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 930 {
 931         return device->disconnected;
 932 }
 933
 934 /**
 935  * connman_device_set_string:
 936  * @device: device structure
 937  * @key: unique identifier
 938  * @value: string value
 939  *
 940  * Set string value for specific key
 941  */
 942 int connman_device_set_string(struct connman_device *device,
 943                                         const char *key, const char *value)
 944 {
 945         DBG("device %p key %s value %s", device, key, value);
 946
 947         if (g_str_equal(key, "Address") == TRUE) {
 948                 g_free(device->address);
 949                 device->address = g_strdup(value);
 950         } else if (g_str_equal(key, "Name") == TRUE) {
 951                 g_free(device->name);
 952                 device->name = g_strdup(value);
 953         } else if (g_str_equal(key, "Node") == TRUE) {
 954                 g_free(device->node);
 955                 device->node = g_strdup(value);
 956         }
 957
 958         return connman_element_set_string(&device->element, key, value);
 959 }
 960
 961 /**
 962  * connman_device_get_string:
 963  * @device: device structure
 964  * @key: unique identifier
 965  *
 966  * Get string value for specific key
 967  */
 968 const char *connman_device_get_string(struct connman_device *device,
 969                                                         const char *key)
 970 {
 971         DBG("device %p key %s", device, key);
 972
 973         if (g_str_equal(key, "Address") == TRUE)
 974                 return device->address;
 975         else if (g_str_equal(key, "Name") == TRUE)
 976                 return device->name;
 977         else if (g_str_equal(key, "Node") == TRUE)
 978                 return device->node;
 979         else if (g_str_equal(key, "Interface") == TRUE)
 980                 return device->interface;
 981
 982         return connman_element_get_string(&device->element, key);
 983 }
 984
 985 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 986 {
 987         struct connman_device *device = element->device;
 988         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 989         connman_bool_t powered;
 990
 991         DBG("element %p name %s", element, element->name);
 992
 993         if (device == NULL)
 994                 return;
 995
 996         device->offlinemode = offlinemode;
 997
 998         if (device->blocked == TRUE)
 999                 return;
1000
1001         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1002
1003         if (device->powered == powered)
1004                 return;
1005
1006         if (device->powered_persistent == FALSE)
1007                 powered = FALSE;
1008
1009         set_powered(device, powered);
1010 }
1011
1012 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1013 {
1014         DBG("offlinmode %d", offlinemode);
1015
1016         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
1017                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
1018
1019         __connman_notifier_offlinemode(offlinemode);
1020
1021         return 0;
1022 }
1023
1024 void __connman_device_increase_connections(struct connman_device *device)
1025 {
1026         if (device == NULL)
1027                 return;
1028
1029         device->connections++;
1030 }
1031
1032 void __connman_device_decrease_connections(struct connman_device *device)
1033 {
1034         if (device == NULL)
1035                 return;
1036
1037         device->connections--;
1038
1039         if (device->connections == 0)
1040                 device->backoff_interval = SCAN_INITIAL_DELAY;
1041 }
1042
1043 /**
1044  * connman_device_add_network:
1045  * @device: device structure
1046  * @network: network structure
1047  *
1048  * Add new network to the device
1049  */
1050 int connman_device_add_network(struct connman_device *device,
1051                                         struct connman_network *network)
1052 {
1053         const char *identifier = connman_network_get_identifier(network);
1054         int err;
1055
1056         DBG("device %p network %p", device, network);
1057
1058         if (identifier == NULL)
1059                 return -EINVAL;
1060
1061         __connman_network_set_device(network, device);
1062
1063         err = connman_element_register((struct connman_element *) network,
1064                                                         &device->element);
1065         if (err < 0) {
1066                 __connman_network_set_device(network, NULL);
1067                 return err;
1068         }
1069
1070         g_hash_table_insert(device->networks, g_strdup(identifier),
1071                                                                 network);
1072
1073         return 0;
1074 }
1075
1076 /**
1077  * connman_device_get_network:
1078  * @device: device structure
1079  * @identifier: network identifier
1080  *
1081  * Get network for given identifier
1082  */
1083 struct connman_network *connman_device_get_network(struct connman_device *device,
1084                                                         const char *identifier)
1085 {
1086         DBG("device %p identifier %s", device, identifier);
1087
1088         return g_hash_table_lookup(device->networks, identifier);
1089 }
1090
1091 /**
1092  * connman_device_remove_network:
1093  * @device: device structure
1094  * @identifier: network identifier
1095  *
1096  * Remove network for given identifier
1097  */
1098 int connman_device_remove_network(struct connman_device *device,
1099                                                         const char *identifier)
1100 {
1101         DBG("device %p identifier %s", device, identifier);
1102
1103         g_hash_table_remove(device->networks, identifier);
1104
1105         return 0;
1106 }
1107
1108 void connman_device_remove_all_networks(struct connman_device *device)
1109 {
1110         g_hash_table_remove_all(device->networks);
1111 }
1112
1113 void __connman_device_set_network(struct connman_device *device,
1114                                         struct connman_network *network)
1115 {
1116         const char *name;
1117
1118         if (device == NULL)
1119                 return;
1120
1121         if (device->network == network)
1122                 return;
1123
1124         if (device->network != NULL)
1125                 connman_network_unref(device->network);
1126
1127         if (network != NULL) {
1128                 name = connman_network_get_string(network,
1129                                                 CONNMAN_PROPERTY_ID_NAME);
1130                 g_free(device->last_network);
1131                 device->last_network = g_strdup(name);
1132
1133                 device->network = connman_network_ref(network);
1134         } else {
1135                 g_free(device->last_network);
1136                 device->last_network = NULL;
1137
1138                 device->network = NULL;
1139         }
1140 }
1141
1142 void __connman_device_set_reconnect(struct connman_device *device,
1143                                                 connman_bool_t reconnect)
1144 {
1145         device->reconnect = reconnect;
1146 }
1147
1148 connman_bool_t  __connman_device_get_reconnect(
1149                                 struct connman_device *device)
1150 {
1151         return device->reconnect;
1152 }
1153
1154 /**
1155  * connman_device_register:
1156  * @device: device structure
1157  *
1158  * Register device with the system
1159  */
1160 int connman_device_register(struct connman_device *device)
1161 {
1162         __connman_storage_load_device(device);
1163
1164         device->offlinemode = __connman_profile_get_offlinemode();
1165
1166         return connman_element_register(&device->element, NULL);
1167 }
1168
1169 /**
1170  * connman_device_unregister:
1171  * @device: device structure
1172  *
1173  * Unregister device with the system
1174  */
1175 void connman_device_unregister(struct connman_device *device)
1176 {
1177         __connman_storage_save_device(device);
1178
1179         connman_element_unregister(&device->element);
1180 }
1181
1182 /**
1183  * connman_device_get_data:
1184  * @device: device structure
1185  *
1186  * Get private device data pointer
1187  */
1188 void *connman_device_get_data(struct connman_device *device)
1189 {
1190         return device->driver_data;
1191 }
1192
1193 /**
1194  * connman_device_set_data:
1195  * @device: device structure
1196  * @data: data pointer
1197  *
1198  * Set private device data pointer
1199  */
1200 void connman_device_set_data(struct connman_device *device, void *data)
1201 {
1202         device->driver_data = data;
1203 }
1204
1205 static gboolean match_driver(struct connman_device *device,
1206                                         struct connman_device_driver *driver)
1207 {
1208         if (device->type == driver->type ||
1209                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1210                 return TRUE;
1211
1212         return FALSE;
1213 }
1214
1215 static int device_probe(struct connman_element *element)
1216 {
1217         struct connman_device *device = element->device;
1218         GSList *list;
1219
1220         DBG("element %p name %s", element, element->name);
1221
1222         if (device == NULL)
1223                 return -ENODEV;
1224
1225         if (device->driver != NULL)
1226                 return -EALREADY;
1227
1228         for (list = driver_list; list; list = list->next) {
1229                 struct connman_device_driver *driver = list->data;
1230
1231                 if (match_driver(device, driver) == FALSE)
1232                         continue;
1233
1234                 DBG("driver %p name %s", driver, driver->name);
1235
1236                 if (driver->probe(device) == 0) {
1237                         device->driver = driver;
1238                         break;
1239                 }
1240         }
1241
1242         if (device->driver == NULL)
1243                 return -ENODEV;
1244
1245         return setup_device(device);
1246 }
1247
1248 static void device_remove(struct connman_element *element)
1249 {
1250         struct connman_device *device = element->device;
1251
1252         DBG("element %p name %s", element, element->name);
1253
1254         if (device == NULL)
1255                 return;
1256
1257         if (device->driver == NULL)
1258                 return;
1259
1260         remove_device(device);
1261 }
1262
1263 static struct connman_driver device_driver = {
1264         .name           = "device",
1265         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1266         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1267         .probe          = device_probe,
1268         .remove         = device_remove,
1269 };
1270
1271 static int device_load(struct connman_device *device)
1272 {
1273         const char *ident = __connman_profile_active_ident();
1274         GKeyFile *keyfile;
1275         GError *error = NULL;
1276         gchar *identifier;
1277         connman_bool_t powered;
1278
1279         DBG("device %p", device);
1280
1281         keyfile = __connman_storage_open_profile(ident);
1282         if (keyfile == NULL)
1283                 return 0;
1284
1285         identifier = g_strdup_printf("device_%s", device->element.name);
1286         if (identifier == NULL)
1287                 goto done;
1288
1289         powered = g_key_file_get_boolean(keyfile, identifier,
1290                                                 "Powered", &error);
1291         if (error == NULL)
1292                 device->powered_persistent = powered;
1293         g_clear_error(&error);
1294
1295 done:
1296         g_free(identifier);
1297
1298         __connman_storage_close_profile(ident, keyfile, FALSE);
1299
1300         return 0;
1301 }
1302
1303 static int device_save(struct connman_device *device)
1304 {
1305         const char *ident = __connman_profile_active_ident();
1306         GKeyFile *keyfile;
1307         gchar *identifier;
1308
1309         DBG("device %p", device);
1310
1311         keyfile = __connman_storage_open_profile(ident);
1312         if (keyfile == NULL)
1313                 return 0;
1314
1315         identifier = g_strdup_printf("device_%s", device->element.name);
1316         if (identifier == NULL)
1317                 goto done;
1318
1319         g_key_file_set_boolean(keyfile, identifier,
1320                                         "Powered", device->powered_persistent);
1321
1322 done:
1323         g_free(identifier);
1324
1325         __connman_storage_close_profile(ident, keyfile, TRUE);
1326
1327         return 0;
1328 }
1329
1330 static struct connman_storage device_storage = {
1331         .name           = "device",
1332         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1333         .device_load    = device_load,
1334         .device_save    = device_save,
1335 };
1336
1337 int __connman_device_init(void)
1338 {
1339         DBG("");
1340
1341         if (connman_storage_register(&device_storage) < 0)
1342                 connman_error("Failed to register device storage");
1343
1344         return connman_driver_register(&device_driver);
1345 }
1346
1347 void __connman_device_cleanup(void)
1348 {
1349         DBG("");
1350
1351         connman_driver_unregister(&device_driver);
1352
1353         connman_storage_unregister(&device_storage);
1354 }