src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         connman_bool_t offlinemode;
  35         connman_bool_t blocked;
  36         connman_bool_t powered;
  37         connman_bool_t powered_pending;
  38         connman_bool_t powered_persistent;
  39         connman_bool_t scanning;
  40         connman_bool_t disconnected;
  41         connman_bool_t reconnect;
  42         connman_uint16_t scan_interval;
  43         char *name;
  44         char *node;
  45         char *address;
  46         char *interface;
  47         char *ident;
  48         int phyindex;
  49         unsigned int connections;
  50         guint scan_timeout;
  51
  52         struct connman_device_driver *driver;
  53         void *driver_data;
  54
  55         char *last_network;
  56         struct connman_network *network;
  57         GHashTable *networks;
  58 };
  59
  60 static gboolean device_scan_trigger(gpointer user_data)
  61 {
  62         struct connman_device *device = user_data;
  63
  64         DBG("device %p", device);
  65
  66         if (device->driver == NULL) {
  67                 device->scan_timeout = 0;
  68                 return FALSE;
  69         }
  70
  71         if (device->driver->scan)
  72                 device->driver->scan(device);
  73
  74         return TRUE;
  75 }
  76
  77 static void clear_scan_trigger(struct connman_device *device)
  78 {
  79         if (device->scan_timeout > 0) {
  80                 g_source_remove(device->scan_timeout);
  81                 device->scan_timeout = 0;
  82         }
  83 }
  84
  85 static void reset_scan_trigger(struct connman_device *device)
  86 {
  87         clear_scan_trigger(device);
  88
  89         if (device->scan_interval > 0) {
  90                 guint interval = device->scan_interval;
  91                 device->scan_timeout = g_timeout_add_seconds(interval,
  92                                         device_scan_trigger, device);
  93         }
  94 }
  95
  96 static void force_scan_trigger(struct connman_device *device)
  97 {
  98         clear_scan_trigger(device);
  99
 100         device->scan_timeout = g_timeout_add_seconds(5,
 101                                         device_scan_trigger, device);
 102 }
 103
 104 void connman_device_schedule_scan(struct connman_device *device)
 105 {
 106         reset_scan_trigger(device);
 107 }
 108
 109 static const char *type2description(enum connman_device_type type)
 110 {
 111         switch (type) {
 112         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 113         case CONNMAN_DEVICE_TYPE_VENDOR:
 114                 break;
 115         case CONNMAN_DEVICE_TYPE_ETHERNET:
 116                 return "Ethernet";
 117         case CONNMAN_DEVICE_TYPE_WIFI:
 118                 return "Wireless";
 119         case CONNMAN_DEVICE_TYPE_WIMAX:
 120                 return "WiMAX";
 121         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 122                 return "Bluetooth";
 123         case CONNMAN_DEVICE_TYPE_GPS:
 124                 return "GPS";
 125         case CONNMAN_DEVICE_TYPE_CELLULAR:
 126                 return "Cellular";
 127         case CONNMAN_DEVICE_TYPE_GADGET:
 128                 return "Gadget";
 129
 130         }
 131
 132         return NULL;
 133 }
 134
 135 static const char *type2string(enum connman_device_type type)
 136 {
 137         switch (type) {
 138         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 139         case CONNMAN_DEVICE_TYPE_VENDOR:
 140                 break;
 141         case CONNMAN_DEVICE_TYPE_ETHERNET:
 142                 return "ethernet";
 143         case CONNMAN_DEVICE_TYPE_WIFI:
 144                 return "wifi";
 145         case CONNMAN_DEVICE_TYPE_WIMAX:
 146                 return "wimax";
 147         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 148                 return "bluetooth";
 149         case CONNMAN_DEVICE_TYPE_GPS:
 150                 return "gps";
 151         case CONNMAN_DEVICE_TYPE_CELLULAR:
 152                 return "cellular";
 153         case CONNMAN_DEVICE_TYPE_GADGET:
 154                 return "gadget";
 155
 156         }
 157
 158         return NULL;
 159 }
 160
 161 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 162 {
 163         enum connman_device_type type = connman_device_get_type(device);
 164
 165         switch (type) {
 166         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 167         case CONNMAN_DEVICE_TYPE_VENDOR:
 168         case CONNMAN_DEVICE_TYPE_GPS:
 169                 break;
 170         case CONNMAN_DEVICE_TYPE_ETHERNET:
 171                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 172         case CONNMAN_DEVICE_TYPE_WIFI:
 173                 return CONNMAN_SERVICE_TYPE_WIFI;
 174         case CONNMAN_DEVICE_TYPE_WIMAX:
 175                 return CONNMAN_SERVICE_TYPE_WIMAX;
 176         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 177                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 178         case CONNMAN_DEVICE_TYPE_CELLULAR:
 179                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 180         case CONNMAN_DEVICE_TYPE_GADGET:
 181                 return CONNMAN_SERVICE_TYPE_GADGET;
 182
 183         }
 184
 185         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 186 }
 187
 188 int __connman_device_enable(struct connman_device *device)
 189 {
 190         int err;
 191
 192         DBG("device %p %d", device, device->blocked);
 193
 194         if (!device->driver || !device->driver->enable)
 195                 return -EOPNOTSUPP;
 196
 197         if (device->powered_pending == TRUE)
 198                 return -EALREADY;
 199
 200         if (device->blocked == TRUE)
 201                 return -ENOLINK;
 202
 203         err = device->driver->enable(device);
 204         if (err < 0 && err != -EALREADY) {
 205                 if (err == -EINPROGRESS) {
 206                         device->powered_pending = TRUE;
 207                         device->offlinemode = FALSE;
 208                         if (__connman_profile_get_offlinemode() == TRUE)
 209                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 210                 }
 211                 return err;
 212         }
 213
 214         device->powered_pending = TRUE;
 215         device->powered = TRUE;
 216         device->offlinemode = FALSE;
 217         if (__connman_profile_get_offlinemode() == TRUE)
 218                 __connman_profile_set_offlinemode(FALSE, FALSE);
 219
 220         __connman_technology_enable_device(device);
 221
 222         return 0;
 223 }
 224
 225 int __connman_device_disable(struct connman_device *device)
 226 {
 227         int err;
 228
 229         DBG("device %p", device);
 230
 231         if (!device->driver || !device->driver->disable)
 232                 return -EOPNOTSUPP;
 233
 234         if (device->powered == FALSE)
 235                 return -ENOLINK;
 236
 237         if (device->powered_pending == FALSE)
 238                 return -EALREADY;
 239
 240         device->reconnect = FALSE;
 241
 242         clear_scan_trigger(device);
 243
 244         g_hash_table_remove_all(device->networks);
 245
 246         err = device->driver->disable(device);
 247         if (err < 0 && err != -EALREADY) {
 248                 if (err == -EINPROGRESS)
 249                         device->powered_pending = FALSE;
 250                 return err;
 251         }
 252
 253         device->connections = 0;
 254
 255         device->powered_pending = FALSE;
 256         device->powered = FALSE;
 257
 258         __connman_technology_disable_device(device);
 259
 260         return 0;
 261 }
 262
 263 static int set_powered(struct connman_device *device, connman_bool_t powered)
 264 {
 265         DBG("device %p powered %d", device, powered);
 266
 267         if (powered == TRUE)
 268                 return __connman_device_enable(device);
 269         else
 270                 return __connman_device_disable(device);
 271 }
 272
 273 static int setup_device(struct connman_device *device)
 274 {
 275         DBG("device %p", device);
 276
 277         __connman_technology_add_device(device);
 278
 279         if (device->offlinemode == FALSE &&
 280                                 device->powered_persistent == TRUE)
 281                 __connman_device_enable(device);
 282
 283         return 0;
 284 }
 285
 286 static void probe_driver(struct connman_element *element, gpointer user_data)
 287 {
 288         struct connman_device_driver *driver = user_data;
 289
 290         DBG("element %p name %s", element, element->name);
 291
 292         if (element->device == NULL)
 293                 return;
 294
 295         if (element->device->driver != NULL)
 296                 return;
 297
 298         if (driver->type != element->device->type)
 299                 return;
 300
 301         if (driver->probe(element->device) < 0)
 302                 return;
 303
 304         element->device->driver = driver;
 305
 306         __connman_element_set_driver(element);
 307
 308         setup_device(element->device);
 309 }
 310
 311 static void remove_device(struct connman_device *device)
 312 {
 313         DBG("device %p", device);
 314
 315         __connman_device_disable(device);
 316
 317         __connman_technology_remove_device(device);
 318
 319         if (device->driver->remove)
 320                 device->driver->remove(device);
 321
 322         device->driver = NULL;
 323 }
 324
 325 static void remove_driver(struct connman_element *element, gpointer user_data)
 326 {
 327         struct connman_device_driver *driver = user_data;
 328
 329         DBG("element %p name %s", element, element->name);
 330
 331         if (element->device == NULL)
 332                 return;
 333
 334         if (element->device->driver == driver)
 335                 remove_device(element->device);
 336 }
 337
 338 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 339 {
 340         if (device == NULL || device->driver == NULL)
 341                 return FALSE;
 342
 343         return TRUE;
 344 }
 345
 346 static GSList *driver_list = NULL;
 347
 348 static gint compare_priority(gconstpointer a, gconstpointer b)
 349 {
 350         const struct connman_device_driver *driver1 = a;
 351         const struct connman_device_driver *driver2 = b;
 352
 353         return driver2->priority - driver1->priority;
 354 }
 355
 356 /**
 357  * connman_device_driver_register:
 358  * @driver: device driver definition
 359  *
 360  * Register a new device driver
 361  *
 362  * Returns: %0 on success
 363  */
 364 int connman_device_driver_register(struct connman_device_driver *driver)
 365 {
 366         DBG("driver %p name %s", driver, driver->name);
 367
 368         driver_list = g_slist_insert_sorted(driver_list, driver,
 369                                                         compare_priority);
 370
 371         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 372                                                 probe_driver, driver);
 373
 374         return 0;
 375 }
 376
 377 /**
 378  * connman_device_driver_unregister:
 379  * @driver: device driver definition
 380  *
 381  * Remove a previously registered device driver
 382  */
 383 void connman_device_driver_unregister(struct connman_device_driver *driver)
 384 {
 385         DBG("driver %p name %s", driver, driver->name);
 386
 387         driver_list = g_slist_remove(driver_list, driver);
 388
 389         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 390                                                 remove_driver, driver);
 391 }
 392
 393 static void unregister_network(gpointer data)
 394 {
 395         struct connman_network *network = data;
 396
 397         DBG("network %p", network);
 398
 399         connman_element_unregister((struct connman_element *) network);
 400
 401         __connman_network_set_device(network, NULL);
 402
 403         connman_network_unref(network);
 404 }
 405
 406 static void device_destruct(struct connman_element *element)
 407 {
 408         struct connman_device *device = element->device;
 409
 410         DBG("element %p name %s", element, element->name);
 411
 412         clear_scan_trigger(device);
 413
 414         g_free(device->ident);
 415         g_free(device->node);
 416         g_free(device->name);
 417         g_free(device->address);
 418         g_free(device->interface);
 419
 420         g_free(device->last_network);
 421
 422         g_hash_table_destroy(device->networks);
 423         device->networks = NULL;
 424 }
 425
 426 /**
 427  * connman_device_create:
 428  * @node: device node name (for example an address)
 429  * @type: device type
 430  *
 431  * Allocate a new device of given #type and assign the #node name to it.
 432  *
 433  * Returns: a newly-allocated #connman_device structure
 434  */
 435 struct connman_device *connman_device_create(const char *node,
 436                                                 enum connman_device_type type)
 437 {
 438         struct connman_device *device;
 439         const char *str;
 440         enum connman_service_type service_type;
 441
 442         DBG("node %s type %d", node, type);
 443
 444         device = g_try_new0(struct connman_device, 1);
 445         if (device == NULL)
 446                 return NULL;
 447
 448         DBG("device %p", device);
 449
 450         __connman_element_initialize(&device->element);
 451
 452         device->element.name = g_strdup(node);
 453         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 454
 455         device->element.device = device;
 456         device->element.destruct = device_destruct;
 457
 458         str = type2string(type);
 459         if (str != NULL)
 460                 connman_element_set_string(&device->element,
 461                                         CONNMAN_PROPERTY_ID_TYPE, str);
 462
 463         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 464
 465         device->type = type;
 466         device->name = g_strdup(type2description(device->type));
 467
 468         device->powered_persistent = TRUE;
 469
 470         device->phyindex = -1;
 471
 472         service_type = __connman_device_get_service_type(device);
 473         device->blocked = __connman_technology_get_blocked(service_type);
 474
 475         switch (type) {
 476         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 477         case CONNMAN_DEVICE_TYPE_VENDOR:
 478                 device->scan_interval = 0;
 479                 break;
 480         case CONNMAN_DEVICE_TYPE_ETHERNET:
 481         case CONNMAN_DEVICE_TYPE_WIFI:
 482                 device->scan_interval = 300;
 483                 break;
 484         case CONNMAN_DEVICE_TYPE_WIMAX:
 485                 device->scan_interval = 0;
 486                 break;
 487         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 488                 device->scan_interval = 0;
 489                 break;
 490         case CONNMAN_DEVICE_TYPE_GPS:
 491                 device->scan_interval = 0;
 492                 break;
 493         case CONNMAN_DEVICE_TYPE_CELLULAR:
 494                 device->scan_interval = 0;
 495                 break;
 496         case CONNMAN_DEVICE_TYPE_GADGET:
 497                 device->scan_interval = 0;
 498                 break;
 499         }
 500
 501         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 502                                                 g_free, unregister_network);
 503
 504         return device;
 505 }
 506
 507 /**
 508  * connman_device_ref:
 509  * @device: device structure
 510  *
 511  * Increase reference counter of device
 512  */
 513 struct connman_device *connman_device_ref(struct connman_device *device)
 514 {
 515         if (connman_element_ref(&device->element) == NULL)
 516                 return NULL;
 517
 518         return device;
 519 }
 520
 521 /**
 522  * connman_device_unref:
 523  * @device: device structure
 524  *
 525  * Decrease reference counter of device
 526  */
 527 void connman_device_unref(struct connman_device *device)
 528 {
 529         connman_element_unref(&device->element);
 530 }
 531
 532 const char *__connman_device_get_type(struct connman_device *device)
 533 {
 534         return type2string(device->type);
 535 }
 536
 537 /**
 538  * connman_device_get_type:
 539  * @device: device structure
 540  *
 541  * Get type of device
 542  */
 543 enum connman_device_type connman_device_get_type(struct connman_device *device)
 544 {
 545         return device->type;
 546 }
 547
 548 /**
 549  * connman_device_set_index:
 550  * @device: device structure
 551  * @index: index number
 552  *
 553  * Set index number of device
 554  */
 555 void connman_device_set_index(struct connman_device *device, int index)
 556 {
 557         device->element.index = index;
 558 }
 559
 560 /**
 561  * connman_device_get_index:
 562  * @device: device structure
 563  *
 564  * Get index number of device
 565  */
 566 int connman_device_get_index(struct connman_device *device)
 567 {
 568         return device->element.index;
 569 }
 570
 571 int __connman_device_get_phyindex(struct connman_device *device)
 572 {
 573         return device->phyindex;
 574 }
 575
 576 void __connman_device_set_phyindex(struct connman_device *device,
 577                                                         int phyindex)
 578 {
 579         device->phyindex = phyindex;
 580 }
 581
 582 /**
 583  * connman_device_set_interface:
 584  * @device: device structure
 585  * @interface: interface name
 586  *
 587  * Set interface name of device
 588  */
 589 void connman_device_set_interface(struct connman_device *device,
 590                                                 const char *interface)
 591 {
 592         g_free(device->element.devname);
 593         device->element.devname = g_strdup(interface);
 594
 595         g_free(device->interface);
 596         device->interface = g_strdup(interface);
 597
 598         if (device->name == NULL) {
 599                 const char *str = type2description(device->type);
 600                 if (str != NULL && device->interface != NULL)
 601                         device->name = g_strdup_printf("%s (%s)", str,
 602                                                         device->interface);
 603         }
 604 }
 605
 606 /**
 607  * connman_device_set_ident:
 608  * @device: device structure
 609  * @ident: unique identifier
 610  *
 611  * Set unique identifier of device
 612  */
 613 void connman_device_set_ident(struct connman_device *device,
 614                                                         const char *ident)
 615 {
 616         g_free(device->ident);
 617         device->ident = g_strdup(ident);
 618 }
 619
 620 const char *connman_device_get_ident(struct connman_device *device)
 621 {
 622         return device->ident;
 623 }
 624
 625 /**
 626  * connman_device_set_powered:
 627  * @device: device structure
 628  * @powered: powered state
 629  *
 630  * Change power state of device
 631  */
 632 int connman_device_set_powered(struct connman_device *device,
 633                                                 connman_bool_t powered)
 634 {
 635         int err;
 636
 637         DBG("driver %p powered %d", device, powered);
 638
 639         if (device->powered == powered) {
 640                 device->powered_pending = powered;
 641                 return -EALREADY;
 642         }
 643
 644         if (powered == TRUE)
 645                 err = __connman_device_enable(device);
 646         else
 647                 err = __connman_device_disable(device);
 648
 649         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 650                 return err;
 651
 652         device->powered = powered;
 653         device->powered_pending = powered;
 654
 655         if (device->powered == TRUE)
 656                 __connman_technology_enable_device(device);
 657         else
 658                 __connman_technology_disable_device(device);
 659
 660         if (device->offlinemode == TRUE && powered == TRUE)
 661                 return connman_device_set_powered(device, FALSE);
 662
 663         if (powered == FALSE)
 664                 return 0;
 665
 666         reset_scan_trigger(device);
 667
 668         if (device->driver && device->driver->scan)
 669                 device->driver->scan(device);
 670
 671         return 0;
 672 }
 673
 674 int __connman_device_set_blocked(struct connman_device *device,
 675                                                 connman_bool_t blocked)
 676 {
 677         connman_bool_t powered;
 678
 679         DBG("device %p blocked %d", device, blocked);
 680
 681         device->blocked = blocked;
 682
 683         if (device->offlinemode == TRUE)
 684                 return 0;
 685
 686         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 687
 688         if (blocked == FALSE)
 689                 powered = device->powered_persistent;
 690         else
 691                 powered = FALSE;
 692
 693         return set_powered(device, powered);
 694 }
 695
 696 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 697 {
 698         return device->blocked;
 699 }
 700
 701 int __connman_device_scan(struct connman_device *device)
 702 {
 703         if (!device->driver || !device->driver->scan)
 704                 return -EOPNOTSUPP;
 705
 706         if (device->powered == FALSE)
 707                 return -ENOLINK;
 708
 709         reset_scan_trigger(device);
 710
 711         return device->driver->scan(device);
 712 }
 713
 714 int __connman_device_enable_persistent(struct connman_device *device)
 715 {
 716         int err;
 717
 718         DBG("device %p", device);
 719
 720         device->powered_persistent = TRUE;
 721
 722         __connman_storage_save_device(device);
 723
 724         err = __connman_device_enable(device);
 725         if (err == 0 || err == -EINPROGRESS) {
 726                 device->offlinemode = FALSE;
 727                 if (__connman_profile_get_offlinemode() == TRUE) {
 728                         __connman_profile_set_offlinemode(FALSE, FALSE);
 729
 730                         __connman_profile_save_default();
 731                 }
 732         }
 733
 734         return err;
 735 }
 736
 737 int __connman_device_disable_persistent(struct connman_device *device)
 738 {
 739         DBG("device %p", device);
 740
 741         device->powered_persistent = FALSE;
 742
 743         __connman_storage_save_device(device);
 744
 745         return __connman_device_disable(device);
 746 }
 747
 748 int __connman_device_disconnect(struct connman_device *device)
 749 {
 750         GHashTableIter iter;
 751         gpointer key, value;
 752
 753         DBG("device %p", device);
 754
 755         connman_device_set_disconnected(device, TRUE);
 756
 757         g_hash_table_iter_init(&iter, device->networks);
 758
 759         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 760                 struct connman_network *network = value;
 761
 762                 if (__connman_network_get_connecting(network) == TRUE) {
 763                         /*
 764                          * Skip network in the process of connecting.
 765                          * This is a workaround for WiFi networks serviced
 766                          * by the supplicant plugin that hold a reference
 767                          * to the network.  If we disconnect the network
 768                          * here then the referenced object will not be
 769                          * registered and usage (like launching DHCP client)
 770                          * will fail.  There is nothing to be gained by
 771                          * removing the network here anyway.
 772                          */
 773                         connman_warn("Skipping disconnect of %s",
 774                                 connman_network_get_identifier(network));
 775                         continue;
 776                 }
 777
 778                 __connman_network_disconnect(network);
 779         }
 780
 781         return 0;
 782 }
 783
 784 static void mark_network_unavailable(gpointer key, gpointer value,
 785                                                         gpointer user_data)
 786 {
 787         struct connman_network *network = value;
 788
 789         if (connman_network_get_connected(network) == TRUE)
 790                 return;
 791
 792         connman_network_set_available(network, FALSE);
 793 }
 794
 795 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 796                                                         gpointer user_data)
 797 {
 798         struct connman_network *network = value;
 799
 800         if (connman_network_get_connected(network) == TRUE)
 801                 return FALSE;
 802
 803         if (connman_network_get_available(network) == TRUE)
 804                 return FALSE;
 805
 806         return TRUE;
 807 }
 808
 809 void __connman_device_cleanup_networks(struct connman_device *device)
 810 {
 811         g_hash_table_foreach_remove(device->networks,
 812                                         remove_unavailable_network, NULL);
 813 }
 814
 815 /**
 816  * connman_device_set_scanning:
 817  * @device: device structure
 818  * @scanning: scanning state
 819  *
 820  * Change scanning state of device
 821  */
 822 int connman_device_set_scanning(struct connman_device *device,
 823                                                 connman_bool_t scanning)
 824 {
 825         DBG("device %p scanning %d", device, scanning);
 826
 827         if (!device->driver || !device->driver->scan)
 828                 return -EINVAL;
 829
 830         if (device->scanning == scanning)
 831                 return -EALREADY;
 832
 833         device->scanning = scanning;
 834
 835         if (scanning == TRUE) {
 836                 reset_scan_trigger(device);
 837
 838                 g_hash_table_foreach(device->networks,
 839                                         mark_network_unavailable, NULL);
 840
 841                 return 0;
 842         }
 843
 844         __connman_device_cleanup_networks(device);
 845
 846         if (device->connections > 0)
 847                 return 0;
 848
 849         if (device->disconnected == TRUE)
 850                 return 0;
 851
 852         __connman_service_auto_connect();
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * connman_device_set_disconnected:
 859  * @device: device structure
 860  * @disconnected: disconnected state
 861  *
 862  * Change disconnected state of device (only for device with networks)
 863  */
 864 int connman_device_set_disconnected(struct connman_device *device,
 865                                                 connman_bool_t disconnected)
 866 {
 867         DBG("device %p disconnected %d", device, disconnected);
 868
 869         if (device->disconnected == disconnected)
 870                 return -EALREADY;
 871
 872         device->disconnected = disconnected;
 873
 874         if (disconnected == TRUE)
 875                 force_scan_trigger(device);
 876
 877         return 0;
 878 }
 879
 880 /**
 881  * connman_device_get_disconnected:
 882  * @device: device structure
 883  *
 884  * Get device disconnected state
 885  */
 886 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 887 {
 888         return device->disconnected;
 889 }
 890
 891 /**
 892  * connman_device_set_string:
 893  * @device: device structure
 894  * @key: unique identifier
 895  * @value: string value
 896  *
 897  * Set string value for specific key
 898  */
 899 int connman_device_set_string(struct connman_device *device,
 900                                         const char *key, const char *value)
 901 {
 902         DBG("device %p key %s value %s", device, key, value);
 903
 904         if (g_str_equal(key, "Address") == TRUE) {
 905                 g_free(device->address);
 906                 device->address = g_strdup(value);
 907         } else if (g_str_equal(key, "Name") == TRUE) {
 908                 g_free(device->name);
 909                 device->name = g_strdup(value);
 910         } else if (g_str_equal(key, "Node") == TRUE) {
 911                 g_free(device->node);
 912                 device->node = g_strdup(value);
 913         }
 914
 915         return connman_element_set_string(&device->element, key, value);
 916 }
 917
 918 /**
 919  * connman_device_get_string:
 920  * @device: device structure
 921  * @key: unique identifier
 922  *
 923  * Get string value for specific key
 924  */
 925 const char *connman_device_get_string(struct connman_device *device,
 926                                                         const char *key)
 927 {
 928         DBG("device %p key %s", device, key);
 929
 930         if (g_str_equal(key, "Address") == TRUE)
 931                 return device->address;
 932         else if (g_str_equal(key, "Name") == TRUE)
 933                 return device->name;
 934         else if (g_str_equal(key, "Node") == TRUE)
 935                 return device->node;
 936         else if (g_str_equal(key, "Interface") == TRUE)
 937                 return device->interface;
 938
 939         return connman_element_get_string(&device->element, key);
 940 }
 941
 942 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 943 {
 944         struct connman_device *device = element->device;
 945         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 946         connman_bool_t powered;
 947
 948         DBG("element %p name %s", element, element->name);
 949
 950         if (device == NULL)
 951                 return;
 952
 953         device->offlinemode = offlinemode;
 954
 955         if (device->blocked == TRUE)
 956                 return;
 957
 958         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 959
 960         if (device->powered == powered)
 961                 return;
 962
 963         if (device->powered_persistent == FALSE)
 964                 powered = FALSE;
 965
 966         set_powered(device, powered);
 967 }
 968
 969 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 970 {
 971         DBG("offlinmode %d", offlinemode);
 972
 973         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 974                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 975
 976         __connman_notifier_offlinemode(offlinemode);
 977
 978         return 0;
 979 }
 980
 981 void __connman_device_increase_connections(struct connman_device *device)
 982 {
 983         if (device == NULL)
 984                 return;
 985
 986         device->connections++;
 987 }
 988
 989 void __connman_device_decrease_connections(struct connman_device *device)
 990 {
 991         if (device == NULL)
 992                 return;
 993
 994         device->connections--;
 995 }
 996
 997 /**
 998  * connman_device_add_network:
 999  * @device: device structure
1000  * @network: network structure
1001  *
1002  * Add new network to the device
1003  */
1004 int connman_device_add_network(struct connman_device *device,
1005                                         struct connman_network *network)
1006 {
1007         const char *identifier = connman_network_get_identifier(network);
1008         int err;
1009
1010         DBG("device %p network %p", device, network);
1011
1012         if (identifier == NULL)
1013                 return -EINVAL;
1014
1015         __connman_network_set_device(network, device);
1016
1017         err = connman_element_register((struct connman_element *) network,
1018                                                         &device->element);
1019         if (err < 0) {
1020                 __connman_network_set_device(network, NULL);
1021                 return err;
1022         }
1023
1024         g_hash_table_insert(device->networks, g_strdup(identifier),
1025                                                                 network);
1026
1027         return 0;
1028 }
1029
1030 /**
1031  * connman_device_get_network:
1032  * @device: device structure
1033  * @identifier: network identifier
1034  *
1035  * Get network for given identifier
1036  */
1037 struct connman_network *connman_device_get_network(struct connman_device *device,
1038                                                         const char *identifier)
1039 {
1040         DBG("device %p identifier %s", device, identifier);
1041
1042         return g_hash_table_lookup(device->networks, identifier);
1043 }
1044
1045 /**
1046  * connman_device_remove_network:
1047  * @device: device structure
1048  * @identifier: network identifier
1049  *
1050  * Remove network for given identifier
1051  */
1052 int connman_device_remove_network(struct connman_device *device,
1053                                                         const char *identifier)
1054 {
1055         DBG("device %p identifier %s", device, identifier);
1056
1057         g_hash_table_remove(device->networks, identifier);
1058
1059         return 0;
1060 }
1061
1062 void connman_device_remove_all_networks(struct connman_device *device)
1063 {
1064         g_hash_table_remove_all(device->networks);
1065 }
1066
1067 void __connman_device_set_network(struct connman_device *device,
1068                                         struct connman_network *network)
1069 {
1070         const char *name;
1071
1072         if (device == NULL)
1073                 return;
1074
1075         if (device->network == network)
1076                 return;
1077
1078         if (device->network != NULL)
1079                 connman_network_unref(device->network);
1080
1081         if (network != NULL) {
1082                 name = connman_network_get_string(network,
1083                                                 CONNMAN_PROPERTY_ID_NAME);
1084                 g_free(device->last_network);
1085                 device->last_network = g_strdup(name);
1086
1087                 device->network = connman_network_ref(network);
1088         } else {
1089                 g_free(device->last_network);
1090                 device->last_network = NULL;
1091
1092                 device->network = NULL;
1093         }
1094 }
1095
1096 void __connman_device_set_reconnect(struct connman_device *device,
1097                                                 connman_bool_t reconnect)
1098 {
1099         device->reconnect = reconnect;
1100 }
1101
1102 connman_bool_t  __connman_device_get_reconnect(
1103                                 struct connman_device *device)
1104 {
1105         return device->reconnect;
1106 }
1107
1108 /**
1109  * connman_device_register:
1110  * @device: device structure
1111  *
1112  * Register device with the system
1113  */
1114 int connman_device_register(struct connman_device *device)
1115 {
1116         __connman_storage_load_device(device);
1117
1118         device->offlinemode = __connman_profile_get_offlinemode();
1119
1120         return connman_element_register(&device->element, NULL);
1121 }
1122
1123 /**
1124  * connman_device_unregister:
1125  * @device: device structure
1126  *
1127  * Unregister device with the system
1128  */
1129 void connman_device_unregister(struct connman_device *device)
1130 {
1131         __connman_storage_save_device(device);
1132
1133         connman_element_unregister(&device->element);
1134 }
1135
1136 /**
1137  * connman_device_get_data:
1138  * @device: device structure
1139  *
1140  * Get private device data pointer
1141  */
1142 void *connman_device_get_data(struct connman_device *device)
1143 {
1144         return device->driver_data;
1145 }
1146
1147 /**
1148  * connman_device_set_data:
1149  * @device: device structure
1150  * @data: data pointer
1151  *
1152  * Set private device data pointer
1153  */
1154 void connman_device_set_data(struct connman_device *device, void *data)
1155 {
1156         device->driver_data = data;
1157 }
1158
1159 static gboolean match_driver(struct connman_device *device,
1160                                         struct connman_device_driver *driver)
1161 {
1162         if (device->type == driver->type ||
1163                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1164                 return TRUE;
1165
1166         return FALSE;
1167 }
1168
1169 static int device_probe(struct connman_element *element)
1170 {
1171         struct connman_device *device = element->device;
1172         GSList *list;
1173
1174         DBG("element %p name %s", element, element->name);
1175
1176         if (device == NULL)
1177                 return -ENODEV;
1178
1179         if (device->driver != NULL)
1180                 return -EALREADY;
1181
1182         for (list = driver_list; list; list = list->next) {
1183                 struct connman_device_driver *driver = list->data;
1184
1185                 if (match_driver(device, driver) == FALSE)
1186                         continue;
1187
1188                 DBG("driver %p name %s", driver, driver->name);
1189
1190                 if (driver->probe(device) == 0) {
1191                         device->driver = driver;
1192                         break;
1193                 }
1194         }
1195
1196         if (device->driver == NULL)
1197                 return -ENODEV;
1198
1199         return setup_device(device);
1200 }
1201
1202 static void device_remove(struct connman_element *element)
1203 {
1204         struct connman_device *device = element->device;
1205
1206         DBG("element %p name %s", element, element->name);
1207
1208         if (device == NULL)
1209                 return;
1210
1211         if (device->driver == NULL)
1212                 return;
1213
1214         remove_device(device);
1215 }
1216
1217 static struct connman_driver device_driver = {
1218         .name           = "device",
1219         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1220         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1221         .probe          = device_probe,
1222         .remove         = device_remove,
1223 };
1224
1225 static int device_load(struct connman_device *device)
1226 {
1227         const char *ident = __connman_profile_active_ident();
1228         GKeyFile *keyfile;
1229         GError *error = NULL;
1230         gchar *identifier;
1231         connman_bool_t powered;
1232         int val;
1233
1234         DBG("device %p", device);
1235
1236         keyfile = __connman_storage_open_profile(ident);
1237         if (keyfile == NULL)
1238                 return 0;
1239
1240         identifier = g_strdup_printf("device_%s", device->element.name);
1241         if (identifier == NULL)
1242                 goto done;
1243
1244         powered = g_key_file_get_boolean(keyfile, identifier,
1245                                                 "Powered", &error);
1246         if (error == NULL)
1247                 device->powered_persistent = powered;
1248         g_clear_error(&error);
1249
1250         val = g_key_file_get_integer(keyfile, identifier,
1251                                                 "ScanInterval", &error);
1252         if (error == NULL)
1253                 device->scan_interval = val;
1254         g_clear_error(&error);
1255
1256 done:
1257         g_free(identifier);
1258
1259         __connman_storage_close_profile(ident, keyfile, FALSE);
1260
1261         return 0;
1262 }
1263
1264 static int device_save(struct connman_device *device)
1265 {
1266         const char *ident = __connman_profile_active_ident();
1267         GKeyFile *keyfile;
1268         gchar *identifier;
1269
1270         DBG("device %p", device);
1271
1272         keyfile = __connman_storage_open_profile(ident);
1273         if (keyfile == NULL)
1274                 return 0;
1275
1276         identifier = g_strdup_printf("device_%s", device->element.name);
1277         if (identifier == NULL)
1278                 goto done;
1279
1280         g_key_file_set_boolean(keyfile, identifier,
1281                                         "Powered", device->powered_persistent);
1282
1283         g_key_file_set_integer(keyfile, identifier,
1284                                         "ScanInterval", device->scan_interval);
1285
1286 done:
1287         g_free(identifier);
1288
1289         __connman_storage_close_profile(ident, keyfile, TRUE);
1290
1291         return 0;
1292 }
1293
1294 static struct connman_storage device_storage = {
1295         .name           = "device",
1296         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1297         .device_load    = device_load,
1298         .device_save    = device_save,
1299 };
1300
1301 int __connman_device_init(void)
1302 {
1303         DBG("");
1304
1305         if (connman_storage_register(&device_storage) < 0)
1306                 connman_error("Failed to register device storage");
1307
1308         return connman_driver_register(&device_driver);
1309 }
1310
1311 void __connman_device_cleanup(void)
1312 {
1313         DBG("");
1314
1315         connman_driver_unregister(&device_driver);
1316
1317         connman_storage_unregister(&device_storage);
1318 }