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
 466         DBG("node %s type %d", node, type);
 467
 468         device = g_try_new0(struct connman_device, 1);
 469         if (device == NULL)
 470                 return NULL;
 471
 472         DBG("device %p", device);
 473
 474         __connman_element_initialize(&device->element);
 475
 476         device->element.name = g_strdup(node);
 477         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 478
 479         device->element.device = device;
 480         device->element.destruct = device_destruct;
 481
 482         str = type2string(type);
 483         if (str != NULL)
 484                 connman_element_set_string(&device->element,
 485                                         CONNMAN_PROPERTY_ID_TYPE, str);
 486
 487         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 488
 489         device->type = type;
 490         device->name = g_strdup(type2description(device->type));
 491
 492         device->powered_persistent = TRUE;
 493
 494         device->phyindex = -1;
 495
 496         service_type = __connman_device_get_service_type(device);
 497         device->blocked = __connman_technology_get_blocked(service_type);
 498         device->backoff_interval = SCAN_INITIAL_DELAY;
 499
 500         switch (type) {
 501         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 502         case CONNMAN_DEVICE_TYPE_VENDOR:
 503                 device->scan_interval = 0;
 504                 break;
 505         case CONNMAN_DEVICE_TYPE_ETHERNET:
 506         case CONNMAN_DEVICE_TYPE_WIFI:
 507                 device->scan_interval = 300;
 508                 break;
 509         case CONNMAN_DEVICE_TYPE_WIMAX:
 510                 device->scan_interval = 0;
 511                 break;
 512         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 513                 device->scan_interval = 0;
 514                 break;
 515         case CONNMAN_DEVICE_TYPE_GPS:
 516                 device->scan_interval = 0;
 517                 break;
 518         case CONNMAN_DEVICE_TYPE_CELLULAR:
 519                 device->scan_interval = 0;
 520                 break;
 521         case CONNMAN_DEVICE_TYPE_GADGET:
 522                 device->scan_interval = 0;
 523                 break;
 524         }
 525
 526         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 527                                                 g_free, unregister_network);
 528
 529         return device;
 530 }
 531
 532 /**
 533  * connman_device_ref:
 534  * @device: device structure
 535  *
 536  * Increase reference counter of device
 537  */
 538 struct connman_device *connman_device_ref(struct connman_device *device)
 539 {
 540         if (connman_element_ref(&device->element) == NULL)
 541                 return NULL;
 542
 543         return device;
 544 }
 545
 546 /**
 547  * connman_device_unref:
 548  * @device: device structure
 549  *
 550  * Decrease reference counter of device
 551  */
 552 void connman_device_unref(struct connman_device *device)
 553 {
 554         connman_element_unref(&device->element);
 555 }
 556
 557 const char *__connman_device_get_type(struct connman_device *device)
 558 {
 559         return type2string(device->type);
 560 }
 561
 562 /**
 563  * connman_device_get_type:
 564  * @device: device structure
 565  *
 566  * Get type of device
 567  */
 568 enum connman_device_type connman_device_get_type(struct connman_device *device)
 569 {
 570         return device->type;
 571 }
 572
 573 /**
 574  * connman_device_set_index:
 575  * @device: device structure
 576  * @index: index number
 577  *
 578  * Set index number of device
 579  */
 580 void connman_device_set_index(struct connman_device *device, int index)
 581 {
 582         device->element.index = index;
 583 }
 584
 585 /**
 586  * connman_device_get_index:
 587  * @device: device structure
 588  *
 589  * Get index number of device
 590  */
 591 int connman_device_get_index(struct connman_device *device)
 592 {
 593         return device->element.index;
 594 }
 595
 596 int __connman_device_get_phyindex(struct connman_device *device)
 597 {
 598         return device->phyindex;
 599 }
 600
 601 void __connman_device_set_phyindex(struct connman_device *device,
 602                                                         int phyindex)
 603 {
 604         device->phyindex = phyindex;
 605 }
 606
 607 /**
 608  * connman_device_set_interface:
 609  * @device: device structure
 610  * @interface: interface name
 611  *
 612  * Set interface name of device
 613  */
 614 void connman_device_set_interface(struct connman_device *device,
 615                                                 const char *interface)
 616 {
 617         g_free(device->element.devname);
 618         device->element.devname = g_strdup(interface);
 619
 620         g_free(device->interface);
 621         device->interface = g_strdup(interface);
 622
 623         if (device->name == NULL) {
 624                 const char *str = type2description(device->type);
 625                 if (str != NULL && device->interface != NULL)
 626                         device->name = g_strdup_printf("%s (%s)", str,
 627                                                         device->interface);
 628         }
 629 }
 630
 631 /**
 632  * connman_device_set_ident:
 633  * @device: device structure
 634  * @ident: unique identifier
 635  *
 636  * Set unique identifier of device
 637  */
 638 void connman_device_set_ident(struct connman_device *device,
 639                                                         const char *ident)
 640 {
 641         g_free(device->ident);
 642         device->ident = g_strdup(ident);
 643 }
 644
 645 const char *connman_device_get_ident(struct connman_device *device)
 646 {
 647         return device->ident;
 648 }
 649
 650 /**
 651  * connman_device_set_powered:
 652  * @device: device structure
 653  * @powered: powered state
 654  *
 655  * Change power state of device
 656  */
 657 int connman_device_set_powered(struct connman_device *device,
 658                                                 connman_bool_t powered)
 659 {
 660         int err;
 661         enum connman_service_type type;
 662
 663         DBG("driver %p powered %d", device, powered);
 664
 665         if (device->powered == powered) {
 666                 device->powered_pending = powered;
 667                 return -EALREADY;
 668         }
 669
 670         if (powered == TRUE)
 671                 err = __connman_device_enable(device);
 672         else
 673                 err = __connman_device_disable(device);
 674
 675         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 676                 return err;
 677
 678         device->powered = powered;
 679         device->powered_pending = powered;
 680
 681         type = __connman_device_get_service_type(device);
 682
 683         if (device->powered == TRUE)
 684                 __connman_technology_enable(type);
 685         else
 686                 __connman_technology_disable(type);
 687
 688         if (device->offlinemode == TRUE && powered == TRUE)
 689                 return connman_device_set_powered(device, FALSE);
 690
 691         if (powered == FALSE)
 692                 return 0;
 693
 694         reset_scan_trigger(device);
 695
 696         if (device->driver && device->driver->scan)
 697                 device->driver->scan(device);
 698
 699         return 0;
 700 }
 701
 702 int __connman_device_set_blocked(struct connman_device *device,
 703                                                 connman_bool_t blocked)
 704 {
 705         connman_bool_t powered;
 706
 707         DBG("device %p blocked %d", device, blocked);
 708
 709         device->blocked = blocked;
 710
 711         if (device->offlinemode == TRUE)
 712                 return 0;
 713
 714         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 715
 716         if (blocked == FALSE)
 717                 powered = device->powered_persistent;
 718         else
 719                 powered = FALSE;
 720
 721         return set_powered(device, powered);
 722 }
 723
 724 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 725 {
 726         return device->blocked;
 727 }
 728
 729 int __connman_device_scan(struct connman_device *device)
 730 {
 731         if (!device->driver || !device->driver->scan)
 732                 return -EOPNOTSUPP;
 733
 734         if (device->powered == FALSE)
 735                 return -ENOLINK;
 736
 737         reset_scan_trigger(device);
 738
 739         return device->driver->scan(device);
 740 }
 741
 742 int __connman_device_enable_persistent(struct connman_device *device)
 743 {
 744         int err;
 745
 746         DBG("device %p", device);
 747
 748         device->powered_persistent = TRUE;
 749
 750         __connman_storage_save_device(device);
 751
 752         err = __connman_device_enable(device);
 753         if (err == 0 || err == -EINPROGRESS) {
 754                 device->offlinemode = FALSE;
 755                 if (__connman_profile_get_offlinemode() == TRUE) {
 756                         __connman_profile_set_offlinemode(FALSE, FALSE);
 757
 758                         __connman_profile_save_default();
 759                 }
 760         }
 761
 762         return err;
 763 }
 764
 765 int __connman_device_disable_persistent(struct connman_device *device)
 766 {
 767         DBG("device %p", device);
 768
 769         device->powered_persistent = FALSE;
 770
 771         __connman_storage_save_device(device);
 772
 773         return __connman_device_disable(device);
 774 }
 775
 776 int __connman_device_disconnect(struct connman_device *device)
 777 {
 778         GHashTableIter iter;
 779         gpointer key, value;
 780
 781         DBG("device %p", device);
 782
 783         connman_device_set_disconnected(device, TRUE);
 784
 785         g_hash_table_iter_init(&iter, device->networks);
 786
 787         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 788                 struct connman_network *network = value;
 789
 790                 if (__connman_network_get_connecting(network) == TRUE) {
 791                         /*
 792                          * Skip network in the process of connecting.
 793                          * This is a workaround for WiFi networks serviced
 794                          * by the supplicant plugin that hold a reference
 795                          * to the network.  If we disconnect the network
 796                          * here then the referenced object will not be
 797                          * registered and usage (like launching DHCP client)
 798                          * will fail.  There is nothing to be gained by
 799                          * removing the network here anyway.
 800                          */
 801                         connman_warn("Skipping disconnect of %s",
 802                                 connman_network_get_identifier(network));
 803                         continue;
 804                 }
 805
 806                 __connman_network_disconnect(network);
 807         }
 808
 809         return 0;
 810 }
 811
 812 static void mark_network_available(gpointer key, gpointer value,
 813                                                         gpointer user_data)
 814 {
 815         struct connman_network *network = value;
 816
 817         connman_network_set_available(network, TRUE);
 818 }
 819
 820 static void mark_network_unavailable(gpointer key, gpointer value,
 821                                                         gpointer user_data)
 822 {
 823         struct connman_network *network = value;
 824
 825         if (connman_network_get_connected(network) == TRUE)
 826                 return;
 827
 828         connman_network_set_available(network, FALSE);
 829 }
 830
 831 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 832                                                         gpointer user_data)
 833 {
 834         struct connman_network *network = value;
 835
 836         if (connman_network_get_connected(network) == TRUE)
 837                 return FALSE;
 838
 839         if (connman_network_get_available(network) == TRUE)
 840                 return FALSE;
 841
 842         return TRUE;
 843 }
 844
 845 void __connman_device_cleanup_networks(struct connman_device *device)
 846 {
 847         g_hash_table_foreach_remove(device->networks,
 848                                         remove_unavailable_network, NULL);
 849 }
 850
 851 connman_bool_t __connman_device_scanning(struct connman_device *device)
 852 {
 853         return device->scanning;
 854 }
 855
 856 void connman_device_reset_scanning(struct connman_device *device)
 857 {
 858         device->scanning = FALSE;
 859
 860         g_hash_table_foreach(device->networks,
 861                                 mark_network_available, NULL);
 862
 863 }
 864
 865 /**
 866  * connman_device_set_scanning:
 867  * @device: device structure
 868  * @scanning: scanning state
 869  *
 870  * Change scanning state of device
 871  */
 872 int connman_device_set_scanning(struct connman_device *device,
 873                                                 connman_bool_t scanning)
 874 {
 875         DBG("device %p scanning %d", device, scanning);
 876
 877         if (!device->driver || !device->driver->scan)
 878                 return -EINVAL;
 879
 880         if (device->scanning == scanning)
 881                 return -EALREADY;
 882
 883         device->scanning = scanning;
 884
 885         if (scanning == TRUE) {
 886                 reset_scan_trigger(device);
 887
 888                 g_hash_table_foreach(device->networks,
 889                                         mark_network_unavailable, NULL);
 890
 891                 return 0;
 892         }
 893
 894         __connman_device_cleanup_networks(device);
 895
 896         if (device->connections > 0)
 897                 return 0;
 898
 899         __connman_service_auto_connect();
 900
 901         return 0;
 902 }
 903
 904 /**
 905  * connman_device_set_disconnected:
 906  * @device: device structure
 907  * @disconnected: disconnected state
 908  *
 909  * Change disconnected state of device (only for device with networks)
 910  */
 911 int connman_device_set_disconnected(struct connman_device *device,
 912                                                 connman_bool_t disconnected)
 913 {
 914         DBG("device %p disconnected %d", device, disconnected);
 915
 916         if (device->disconnected == disconnected)
 917                 return -EALREADY;
 918
 919         device->disconnected = disconnected;
 920
 921         if (disconnected == TRUE)
 922                 force_scan_trigger(device);
 923
 924         return 0;
 925 }
 926
 927 /**
 928  * connman_device_get_disconnected:
 929  * @device: device structure
 930  *
 931  * Get device disconnected state
 932  */
 933 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 934 {
 935         return device->disconnected;
 936 }
 937
 938 /**
 939  * connman_device_set_string:
 940  * @device: device structure
 941  * @key: unique identifier
 942  * @value: string value
 943  *
 944  * Set string value for specific key
 945  */
 946 int connman_device_set_string(struct connman_device *device,
 947                                         const char *key, const char *value)
 948 {
 949         DBG("device %p key %s value %s", device, key, value);
 950
 951         if (g_str_equal(key, "Address") == TRUE) {
 952                 g_free(device->address);
 953                 device->address = g_strdup(value);
 954         } else if (g_str_equal(key, "Name") == TRUE) {
 955                 g_free(device->name);
 956                 device->name = g_strdup(value);
 957         } else if (g_str_equal(key, "Node") == TRUE) {
 958                 g_free(device->node);
 959                 device->node = g_strdup(value);
 960         }
 961
 962         return connman_element_set_string(&device->element, key, value);
 963 }
 964
 965 /**
 966  * connman_device_get_string:
 967  * @device: device structure
 968  * @key: unique identifier
 969  *
 970  * Get string value for specific key
 971  */
 972 const char *connman_device_get_string(struct connman_device *device,
 973                                                         const char *key)
 974 {
 975         DBG("device %p key %s", device, key);
 976
 977         if (g_str_equal(key, "Address") == TRUE)
 978                 return device->address;
 979         else if (g_str_equal(key, "Name") == TRUE)
 980                 return device->name;
 981         else if (g_str_equal(key, "Node") == TRUE)
 982                 return device->node;
 983         else if (g_str_equal(key, "Interface") == TRUE)
 984                 return device->interface;
 985
 986         return connman_element_get_string(&device->element, key);
 987 }
 988
 989 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 990 {
 991         struct connman_device *device = element->device;
 992         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 993         connman_bool_t powered;
 994
 995         DBG("element %p name %s", element, element->name);
 996
 997         if (device == NULL)
 998                 return;
 999
1000         device->offlinemode = offlinemode;
1001
1002         if (device->blocked == TRUE)
1003                 return;
1004
1005         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1006
1007         if (device->powered == powered)
1008                 return;
1009
1010         if (device->powered_persistent == FALSE)
1011                 powered = FALSE;
1012
1013         set_powered(device, powered);
1014 }
1015
1016 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1017 {
1018         DBG("offlinmode %d", offlinemode);
1019
1020         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
1021                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
1022
1023         __connman_notifier_offlinemode(offlinemode);
1024
1025         return 0;
1026 }
1027
1028 void __connman_device_increase_connections(struct connman_device *device)
1029 {
1030         if (device == NULL)
1031                 return;
1032
1033         device->connections++;
1034 }
1035
1036 void __connman_device_decrease_connections(struct connman_device *device)
1037 {
1038         if (device == NULL)
1039                 return;
1040
1041         device->connections--;
1042
1043         if (device->connections == 0)
1044                 device->backoff_interval = SCAN_INITIAL_DELAY;
1045 }
1046
1047 /**
1048  * connman_device_add_network:
1049  * @device: device structure
1050  * @network: network structure
1051  *
1052  * Add new network to the device
1053  */
1054 int connman_device_add_network(struct connman_device *device,
1055                                         struct connman_network *network)
1056 {
1057         const char *identifier = connman_network_get_identifier(network);
1058         int err;
1059
1060         DBG("device %p network %p", device, network);
1061
1062         if (identifier == NULL)
1063                 return -EINVAL;
1064
1065         __connman_network_set_device(network, device);
1066
1067         err = connman_element_register((struct connman_element *) network,
1068                                                         &device->element);
1069         if (err < 0) {
1070                 __connman_network_set_device(network, NULL);
1071                 return err;
1072         }
1073
1074         g_hash_table_insert(device->networks, g_strdup(identifier),
1075                                                                 network);
1076
1077         return 0;
1078 }
1079
1080 /**
1081  * connman_device_get_network:
1082  * @device: device structure
1083  * @identifier: network identifier
1084  *
1085  * Get network for given identifier
1086  */
1087 struct connman_network *connman_device_get_network(struct connman_device *device,
1088                                                         const char *identifier)
1089 {
1090         DBG("device %p identifier %s", device, identifier);
1091
1092         return g_hash_table_lookup(device->networks, identifier);
1093 }
1094
1095 /**
1096  * connman_device_remove_network:
1097  * @device: device structure
1098  * @identifier: network identifier
1099  *
1100  * Remove network for given identifier
1101  */
1102 int connman_device_remove_network(struct connman_device *device,
1103                                                         const char *identifier)
1104 {
1105         DBG("device %p identifier %s", device, identifier);
1106
1107         g_hash_table_remove(device->networks, identifier);
1108
1109         return 0;
1110 }
1111
1112 void connman_device_remove_all_networks(struct connman_device *device)
1113 {
1114         g_hash_table_remove_all(device->networks);
1115 }
1116
1117 void __connman_device_set_network(struct connman_device *device,
1118                                         struct connman_network *network)
1119 {
1120         const char *name;
1121
1122         if (device == NULL)
1123                 return;
1124
1125         if (device->network == network)
1126                 return;
1127
1128         if (device->network != NULL)
1129                 connman_network_unref(device->network);
1130
1131         if (network != NULL) {
1132                 name = connman_network_get_string(network,
1133                                                 CONNMAN_PROPERTY_ID_NAME);
1134                 g_free(device->last_network);
1135                 device->last_network = g_strdup(name);
1136
1137                 device->network = connman_network_ref(network);
1138         } else {
1139                 g_free(device->last_network);
1140                 device->last_network = NULL;
1141
1142                 device->network = NULL;
1143         }
1144 }
1145
1146 void __connman_device_set_reconnect(struct connman_device *device,
1147                                                 connman_bool_t reconnect)
1148 {
1149         device->reconnect = reconnect;
1150 }
1151
1152 connman_bool_t  __connman_device_get_reconnect(
1153                                 struct connman_device *device)
1154 {
1155         return device->reconnect;
1156 }
1157
1158 /**
1159  * connman_device_register:
1160  * @device: device structure
1161  *
1162  * Register device with the system
1163  */
1164 int connman_device_register(struct connman_device *device)
1165 {
1166         __connman_storage_load_device(device);
1167
1168         device->offlinemode = __connman_profile_get_offlinemode();
1169
1170         return connman_element_register(&device->element, NULL);
1171 }
1172
1173 /**
1174  * connman_device_unregister:
1175  * @device: device structure
1176  *
1177  * Unregister device with the system
1178  */
1179 void connman_device_unregister(struct connman_device *device)
1180 {
1181         __connman_storage_save_device(device);
1182
1183         connman_element_unregister(&device->element);
1184 }
1185
1186 /**
1187  * connman_device_get_data:
1188  * @device: device structure
1189  *
1190  * Get private device data pointer
1191  */
1192 void *connman_device_get_data(struct connman_device *device)
1193 {
1194         return device->driver_data;
1195 }
1196
1197 /**
1198  * connman_device_set_data:
1199  * @device: device structure
1200  * @data: data pointer
1201  *
1202  * Set private device data pointer
1203  */
1204 void connman_device_set_data(struct connman_device *device, void *data)
1205 {
1206         device->driver_data = data;
1207 }
1208
1209 static gboolean match_driver(struct connman_device *device,
1210                                         struct connman_device_driver *driver)
1211 {
1212         if (device->type == driver->type ||
1213                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1214                 return TRUE;
1215
1216         return FALSE;
1217 }
1218
1219 static int device_probe(struct connman_element *element)
1220 {
1221         struct connman_device *device = element->device;
1222         GSList *list;
1223
1224         DBG("element %p name %s", element, element->name);
1225
1226         if (device == NULL)
1227                 return -ENODEV;
1228
1229         if (device->driver != NULL)
1230                 return -EALREADY;
1231
1232         for (list = driver_list; list; list = list->next) {
1233                 struct connman_device_driver *driver = list->data;
1234
1235                 if (match_driver(device, driver) == FALSE)
1236                         continue;
1237
1238                 DBG("driver %p name %s", driver, driver->name);
1239
1240                 if (driver->probe(device) == 0) {
1241                         device->driver = driver;
1242                         break;
1243                 }
1244         }
1245
1246         if (device->driver == NULL)
1247                 return -ENODEV;
1248
1249         return setup_device(device);
1250 }
1251
1252 static void device_remove(struct connman_element *element)
1253 {
1254         struct connman_device *device = element->device;
1255
1256         DBG("element %p name %s", element, element->name);
1257
1258         if (device == NULL)
1259                 return;
1260
1261         if (device->driver == NULL)
1262                 return;
1263
1264         remove_device(device);
1265 }
1266
1267 static struct connman_driver device_driver = {
1268         .name           = "device",
1269         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1270         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1271         .probe          = device_probe,
1272         .remove         = device_remove,
1273 };
1274
1275 static int device_load(struct connman_device *device)
1276 {
1277         const char *ident = __connman_profile_active_ident();
1278         GKeyFile *keyfile;
1279         GError *error = NULL;
1280         gchar *identifier;
1281         connman_bool_t powered;
1282         int val;
1283
1284         DBG("device %p", device);
1285
1286         keyfile = __connman_storage_open_profile(ident);
1287         if (keyfile == NULL)
1288                 return 0;
1289
1290         identifier = g_strdup_printf("device_%s", device->element.name);
1291         if (identifier == NULL)
1292                 goto done;
1293
1294         powered = g_key_file_get_boolean(keyfile, identifier,
1295                                                 "Powered", &error);
1296         if (error == NULL)
1297                 device->powered_persistent = powered;
1298         g_clear_error(&error);
1299
1300         val = g_key_file_get_integer(keyfile, identifier,
1301                                                 "ScanInterval", &error);
1302         if (error == NULL)
1303                 device->scan_interval = val;
1304         g_clear_error(&error);
1305
1306 done:
1307         g_free(identifier);
1308
1309         __connman_storage_close_profile(ident, keyfile, FALSE);
1310
1311         return 0;
1312 }
1313
1314 static int device_save(struct connman_device *device)
1315 {
1316         const char *ident = __connman_profile_active_ident();
1317         GKeyFile *keyfile;
1318         gchar *identifier;
1319
1320         DBG("device %p", device);
1321
1322         keyfile = __connman_storage_open_profile(ident);
1323         if (keyfile == NULL)
1324                 return 0;
1325
1326         identifier = g_strdup_printf("device_%s", device->element.name);
1327         if (identifier == NULL)
1328                 goto done;
1329
1330         g_key_file_set_boolean(keyfile, identifier,
1331                                         "Powered", device->powered_persistent);
1332
1333         g_key_file_set_integer(keyfile, identifier,
1334                                         "ScanInterval", device->scan_interval);
1335
1336 done:
1337         g_free(identifier);
1338
1339         __connman_storage_close_profile(ident, keyfile, TRUE);
1340
1341         return 0;
1342 }
1343
1344 static struct connman_storage device_storage = {
1345         .name           = "device",
1346         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1347         .device_load    = device_load,
1348         .device_save    = device_save,
1349 };
1350
1351 int __connman_device_init(void)
1352 {
1353         DBG("");
1354
1355         if (connman_storage_register(&device_storage) < 0)
1356                 connman_error("Failed to register device storage");
1357
1358         return connman_driver_register(&device_driver);
1359 }
1360
1361 void __connman_device_cleanup(void)
1362 {
1363         DBG("");
1364
1365         connman_driver_unregister(&device_driver);
1366
1367         connman_storage_unregister(&device_storage);
1368 }