src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         connman_bool_t offlinemode;
  35         connman_bool_t blocked;
  36         connman_bool_t powered;
  37         connman_bool_t powered_pending;
  38         connman_bool_t powered_persistent;
  39         connman_bool_t scanning;
  40         connman_bool_t disconnected;
  41         connman_bool_t reconnect;
  42         connman_uint16_t scan_interval;
  43         char *name;
  44         char *node;
  45         char *address;
  46         char *interface;
  47         char *ident;
  48         int phyindex;
  49         unsigned int connections;
  50         guint scan_timeout;
  51
  52         struct connman_device_driver *driver;
  53         void *driver_data;
  54
  55         char *last_network;
  56         struct connman_network *network;
  57         GHashTable *networks;
  58 };
  59
  60 static gboolean device_scan_trigger(gpointer user_data)
  61 {
  62         struct connman_device *device = user_data;
  63
  64         DBG("device %p", device);
  65
  66         if (device->driver == NULL) {
  67                 device->scan_timeout = 0;
  68                 return FALSE;
  69         }
  70
  71         if (device->driver->scan)
  72                 device->driver->scan(device);
  73
  74         return TRUE;
  75 }
  76
  77 static void clear_scan_trigger(struct connman_device *device)
  78 {
  79         if (device->scan_timeout > 0) {
  80                 g_source_remove(device->scan_timeout);
  81                 device->scan_timeout = 0;
  82         }
  83 }
  84
  85 static void reset_scan_trigger(struct connman_device *device)
  86 {
  87         clear_scan_trigger(device);
  88
  89         if (device->scan_interval > 0) {
  90                 guint interval = device->scan_interval;
  91                 device->scan_timeout = g_timeout_add_seconds(interval,
  92                                         device_scan_trigger, device);
  93         }
  94 }
  95
  96 static void force_scan_trigger(struct connman_device *device)
  97 {
  98         clear_scan_trigger(device);
  99
 100         device->scan_timeout = g_timeout_add_seconds(5,
 101                                         device_scan_trigger, device);
 102 }
 103
 104 void connman_device_schedule_scan(struct connman_device *device)
 105 {
 106         reset_scan_trigger(device);
 107 }
 108
 109 static const char *type2description(enum connman_device_type type)
 110 {
 111         switch (type) {
 112         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 113         case CONNMAN_DEVICE_TYPE_VENDOR:
 114                 break;
 115         case CONNMAN_DEVICE_TYPE_ETHERNET:
 116                 return "Ethernet";
 117         case CONNMAN_DEVICE_TYPE_WIFI:
 118                 return "Wireless";
 119         case CONNMAN_DEVICE_TYPE_WIMAX:
 120                 return "WiMAX";
 121         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 122                 return "Bluetooth";
 123         case CONNMAN_DEVICE_TYPE_GPS:
 124                 return "GPS";
 125         case CONNMAN_DEVICE_TYPE_CELLULAR:
 126                 return "Cellular";
 127         case CONNMAN_DEVICE_TYPE_GADGET:
 128                 return "Gadget";
 129
 130         }
 131
 132         return NULL;
 133 }
 134
 135 static const char *type2string(enum connman_device_type type)
 136 {
 137         switch (type) {
 138         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 139         case CONNMAN_DEVICE_TYPE_VENDOR:
 140                 break;
 141         case CONNMAN_DEVICE_TYPE_ETHERNET:
 142                 return "ethernet";
 143         case CONNMAN_DEVICE_TYPE_WIFI:
 144                 return "wifi";
 145         case CONNMAN_DEVICE_TYPE_WIMAX:
 146                 return "wimax";
 147         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 148                 return "bluetooth";
 149         case CONNMAN_DEVICE_TYPE_GPS:
 150                 return "gps";
 151         case CONNMAN_DEVICE_TYPE_CELLULAR:
 152                 return "cellular";
 153         case CONNMAN_DEVICE_TYPE_GADGET:
 154                 return "gadget";
 155
 156         }
 157
 158         return NULL;
 159 }
 160
 161 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 162 {
 163         enum connman_device_type type = connman_device_get_type(device);
 164
 165         switch (type) {
 166         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 167         case CONNMAN_DEVICE_TYPE_VENDOR:
 168         case CONNMAN_DEVICE_TYPE_GPS:
 169                 break;
 170         case CONNMAN_DEVICE_TYPE_ETHERNET:
 171                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 172         case CONNMAN_DEVICE_TYPE_WIFI:
 173                 return CONNMAN_SERVICE_TYPE_WIFI;
 174         case CONNMAN_DEVICE_TYPE_WIMAX:
 175                 return CONNMAN_SERVICE_TYPE_WIMAX;
 176         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 177                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 178         case CONNMAN_DEVICE_TYPE_CELLULAR:
 179                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 180         case CONNMAN_DEVICE_TYPE_GADGET:
 181                 return CONNMAN_SERVICE_TYPE_GADGET;
 182
 183         }
 184
 185         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 186 }
 187
 188 int __connman_device_enable(struct connman_device *device)
 189 {
 190         int err;
 191
 192         DBG("device %p %d", device, device->blocked);
 193
 194         if (!device->driver || !device->driver->enable)
 195                 return -EOPNOTSUPP;
 196
 197         if (device->powered_pending == TRUE)
 198                 return -EALREADY;
 199
 200         if (device->blocked == TRUE)
 201                 return -ENOLINK;
 202
 203         connman_device_set_disconnected(device, FALSE);
 204         device->scanning = FALSE;
 205
 206         err = device->driver->enable(device);
 207         if (err < 0 && err != -EALREADY) {
 208                 if (err == -EINPROGRESS) {
 209                         device->powered_pending = TRUE;
 210                         device->offlinemode = FALSE;
 211                         if (__connman_profile_get_offlinemode() == TRUE)
 212                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 213                 }
 214                 return err;
 215         }
 216
 217         device->powered_pending = TRUE;
 218         device->powered = TRUE;
 219         device->offlinemode = FALSE;
 220         if (__connman_profile_get_offlinemode() == TRUE)
 221                 __connman_profile_set_offlinemode(FALSE, FALSE);
 222
 223         __connman_technology_enable_device(device);
 224
 225         return 0;
 226 }
 227
 228 int __connman_device_disable(struct connman_device *device)
 229 {
 230         int err;
 231
 232         DBG("device %p", device);
 233
 234         if (!device->driver || !device->driver->disable)
 235                 return -EOPNOTSUPP;
 236
 237         if (device->powered == FALSE)
 238                 return -ENOLINK;
 239
 240         if (device->powered_pending == FALSE)
 241                 return -EALREADY;
 242
 243         device->reconnect = FALSE;
 244
 245         clear_scan_trigger(device);
 246
 247         g_hash_table_remove_all(device->networks);
 248
 249         err = device->driver->disable(device);
 250         if (err < 0 && err != -EALREADY) {
 251                 if (err == -EINPROGRESS)
 252                         device->powered_pending = FALSE;
 253                 return err;
 254         }
 255
 256         device->connections = 0;
 257
 258         device->powered_pending = FALSE;
 259         device->powered = FALSE;
 260
 261         __connman_technology_disable_device(device);
 262
 263         return 0;
 264 }
 265
 266 static int set_powered(struct connman_device *device, connman_bool_t powered)
 267 {
 268         DBG("device %p powered %d", device, powered);
 269
 270         if (powered == TRUE)
 271                 return __connman_device_enable(device);
 272         else
 273                 return __connman_device_disable(device);
 274 }
 275
 276 static int setup_device(struct connman_device *device)
 277 {
 278         DBG("device %p", device);
 279
 280         __connman_technology_add_device(device);
 281
 282         if (device->offlinemode == FALSE &&
 283                                 device->powered_persistent == TRUE)
 284                 __connman_device_enable(device);
 285
 286         return 0;
 287 }
 288
 289 static void probe_driver(struct connman_element *element, gpointer user_data)
 290 {
 291         struct connman_device_driver *driver = user_data;
 292
 293         DBG("element %p name %s", element, element->name);
 294
 295         if (element->device == NULL)
 296                 return;
 297
 298         if (element->device->driver != NULL)
 299                 return;
 300
 301         if (driver->type != element->device->type)
 302                 return;
 303
 304         if (driver->probe(element->device) < 0)
 305                 return;
 306
 307         element->device->driver = driver;
 308
 309         __connman_element_set_driver(element);
 310
 311         setup_device(element->device);
 312 }
 313
 314 static void remove_device(struct connman_device *device)
 315 {
 316         DBG("device %p", device);
 317
 318         __connman_device_disable(device);
 319
 320         __connman_technology_remove_device(device);
 321
 322         if (device->driver->remove)
 323                 device->driver->remove(device);
 324
 325         device->driver = NULL;
 326 }
 327
 328 static void remove_driver(struct connman_element *element, gpointer user_data)
 329 {
 330         struct connman_device_driver *driver = user_data;
 331
 332         DBG("element %p name %s", element, element->name);
 333
 334         if (element->device == NULL)
 335                 return;
 336
 337         if (element->device->driver == driver)
 338                 remove_device(element->device);
 339 }
 340
 341 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 342 {
 343         if (device == NULL || device->driver == NULL)
 344                 return FALSE;
 345
 346         return TRUE;
 347 }
 348
 349 static GSList *driver_list = NULL;
 350
 351 static gint compare_priority(gconstpointer a, gconstpointer b)
 352 {
 353         const struct connman_device_driver *driver1 = a;
 354         const struct connman_device_driver *driver2 = b;
 355
 356         return driver2->priority - driver1->priority;
 357 }
 358
 359 /**
 360  * connman_device_driver_register:
 361  * @driver: device driver definition
 362  *
 363  * Register a new device driver
 364  *
 365  * Returns: %0 on success
 366  */
 367 int connman_device_driver_register(struct connman_device_driver *driver)
 368 {
 369         DBG("driver %p name %s", driver, driver->name);
 370
 371         driver_list = g_slist_insert_sorted(driver_list, driver,
 372                                                         compare_priority);
 373
 374         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 375                                                 probe_driver, driver);
 376
 377         return 0;
 378 }
 379
 380 /**
 381  * connman_device_driver_unregister:
 382  * @driver: device driver definition
 383  *
 384  * Remove a previously registered device driver
 385  */
 386 void connman_device_driver_unregister(struct connman_device_driver *driver)
 387 {
 388         DBG("driver %p name %s", driver, driver->name);
 389
 390         driver_list = g_slist_remove(driver_list, driver);
 391
 392         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 393                                                 remove_driver, driver);
 394 }
 395
 396 static void unregister_network(gpointer data)
 397 {
 398         struct connman_network *network = data;
 399
 400         DBG("network %p", network);
 401
 402         connman_element_unregister((struct connman_element *) network);
 403
 404         __connman_network_set_device(network, NULL);
 405
 406         connman_network_unref(network);
 407 }
 408
 409 static void device_destruct(struct connman_element *element)
 410 {
 411         struct connman_device *device = element->device;
 412
 413         DBG("element %p name %s", element, element->name);
 414
 415         clear_scan_trigger(device);
 416
 417         g_free(device->ident);
 418         g_free(device->node);
 419         g_free(device->name);
 420         g_free(device->address);
 421         g_free(device->interface);
 422
 423         g_free(device->last_network);
 424
 425         g_hash_table_destroy(device->networks);
 426         device->networks = NULL;
 427 }
 428
 429 /**
 430  * connman_device_create:
 431  * @node: device node name (for example an address)
 432  * @type: device type
 433  *
 434  * Allocate a new device of given #type and assign the #node name to it.
 435  *
 436  * Returns: a newly-allocated #connman_device structure
 437  */
 438 struct connman_device *connman_device_create(const char *node,
 439                                                 enum connman_device_type type)
 440 {
 441         struct connman_device *device;
 442         const char *str;
 443         enum connman_service_type service_type;
 444
 445         DBG("node %s type %d", node, type);
 446
 447         device = g_try_new0(struct connman_device, 1);
 448         if (device == NULL)
 449                 return NULL;
 450
 451         DBG("device %p", device);
 452
 453         __connman_element_initialize(&device->element);
 454
 455         device->element.name = g_strdup(node);
 456         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 457
 458         device->element.device = device;
 459         device->element.destruct = device_destruct;
 460
 461         str = type2string(type);
 462         if (str != NULL)
 463                 connman_element_set_string(&device->element,
 464                                         CONNMAN_PROPERTY_ID_TYPE, str);
 465
 466         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 467
 468         device->type = type;
 469         device->name = g_strdup(type2description(device->type));
 470
 471         device->powered_persistent = TRUE;
 472
 473         device->phyindex = -1;
 474
 475         service_type = __connman_device_get_service_type(device);
 476         device->blocked = __connman_technology_get_blocked(service_type);
 477
 478         switch (type) {
 479         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 480         case CONNMAN_DEVICE_TYPE_VENDOR:
 481                 device->scan_interval = 0;
 482                 break;
 483         case CONNMAN_DEVICE_TYPE_ETHERNET:
 484         case CONNMAN_DEVICE_TYPE_WIFI:
 485                 device->scan_interval = 300;
 486                 break;
 487         case CONNMAN_DEVICE_TYPE_WIMAX:
 488                 device->scan_interval = 0;
 489                 break;
 490         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 491                 device->scan_interval = 0;
 492                 break;
 493         case CONNMAN_DEVICE_TYPE_GPS:
 494                 device->scan_interval = 0;
 495                 break;
 496         case CONNMAN_DEVICE_TYPE_CELLULAR:
 497                 device->scan_interval = 0;
 498                 break;
 499         case CONNMAN_DEVICE_TYPE_GADGET:
 500                 device->scan_interval = 0;
 501                 break;
 502         }
 503
 504         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 505                                                 g_free, unregister_network);
 506
 507         return device;
 508 }
 509
 510 /**
 511  * connman_device_ref:
 512  * @device: device structure
 513  *
 514  * Increase reference counter of device
 515  */
 516 struct connman_device *connman_device_ref(struct connman_device *device)
 517 {
 518         if (connman_element_ref(&device->element) == NULL)
 519                 return NULL;
 520
 521         return device;
 522 }
 523
 524 /**
 525  * connman_device_unref:
 526  * @device: device structure
 527  *
 528  * Decrease reference counter of device
 529  */
 530 void connman_device_unref(struct connman_device *device)
 531 {
 532         connman_element_unref(&device->element);
 533 }
 534
 535 const char *__connman_device_get_type(struct connman_device *device)
 536 {
 537         return type2string(device->type);
 538 }
 539
 540 /**
 541  * connman_device_get_type:
 542  * @device: device structure
 543  *
 544  * Get type of device
 545  */
 546 enum connman_device_type connman_device_get_type(struct connman_device *device)
 547 {
 548         return device->type;
 549 }
 550
 551 /**
 552  * connman_device_set_index:
 553  * @device: device structure
 554  * @index: index number
 555  *
 556  * Set index number of device
 557  */
 558 void connman_device_set_index(struct connman_device *device, int index)
 559 {
 560         device->element.index = index;
 561 }
 562
 563 /**
 564  * connman_device_get_index:
 565  * @device: device structure
 566  *
 567  * Get index number of device
 568  */
 569 int connman_device_get_index(struct connman_device *device)
 570 {
 571         return device->element.index;
 572 }
 573
 574 int __connman_device_get_phyindex(struct connman_device *device)
 575 {
 576         return device->phyindex;
 577 }
 578
 579 void __connman_device_set_phyindex(struct connman_device *device,
 580                                                         int phyindex)
 581 {
 582         device->phyindex = phyindex;
 583 }
 584
 585 /**
 586  * connman_device_set_interface:
 587  * @device: device structure
 588  * @interface: interface name
 589  *
 590  * Set interface name of device
 591  */
 592 void connman_device_set_interface(struct connman_device *device,
 593                                                 const char *interface)
 594 {
 595         g_free(device->element.devname);
 596         device->element.devname = g_strdup(interface);
 597
 598         g_free(device->interface);
 599         device->interface = g_strdup(interface);
 600
 601         if (device->name == NULL) {
 602                 const char *str = type2description(device->type);
 603                 if (str != NULL && device->interface != NULL)
 604                         device->name = g_strdup_printf("%s (%s)", str,
 605                                                         device->interface);
 606         }
 607 }
 608
 609 /**
 610  * connman_device_set_ident:
 611  * @device: device structure
 612  * @ident: unique identifier
 613  *
 614  * Set unique identifier of device
 615  */
 616 void connman_device_set_ident(struct connman_device *device,
 617                                                         const char *ident)
 618 {
 619         g_free(device->ident);
 620         device->ident = g_strdup(ident);
 621 }
 622
 623 const char *connman_device_get_ident(struct connman_device *device)
 624 {
 625         return device->ident;
 626 }
 627
 628 /**
 629  * connman_device_set_powered:
 630  * @device: device structure
 631  * @powered: powered state
 632  *
 633  * Change power state of device
 634  */
 635 int connman_device_set_powered(struct connman_device *device,
 636                                                 connman_bool_t powered)
 637 {
 638         int err;
 639
 640         DBG("driver %p powered %d", device, powered);
 641
 642         if (device->powered == powered) {
 643                 device->powered_pending = powered;
 644                 return -EALREADY;
 645         }
 646
 647         if (powered == TRUE)
 648                 err = __connman_device_enable(device);
 649         else
 650                 err = __connman_device_disable(device);
 651
 652         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 653                 return err;
 654
 655         device->powered = powered;
 656         device->powered_pending = powered;
 657
 658         if (device->powered == TRUE)
 659                 __connman_technology_enable_device(device);
 660         else
 661                 __connman_technology_disable_device(device);
 662
 663         if (device->offlinemode == TRUE && powered == TRUE)
 664                 return connman_device_set_powered(device, FALSE);
 665
 666         if (powered == FALSE)
 667                 return 0;
 668
 669         reset_scan_trigger(device);
 670
 671         if (device->driver && device->driver->scan)
 672                 device->driver->scan(device);
 673
 674         return 0;
 675 }
 676
 677 int __connman_device_set_blocked(struct connman_device *device,
 678                                                 connman_bool_t blocked)
 679 {
 680         connman_bool_t powered;
 681
 682         DBG("device %p blocked %d", device, blocked);
 683
 684         device->blocked = blocked;
 685
 686         if (device->offlinemode == TRUE)
 687                 return 0;
 688
 689         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 690
 691         if (blocked == FALSE)
 692                 powered = device->powered_persistent;
 693         else
 694                 powered = FALSE;
 695
 696         return set_powered(device, powered);
 697 }
 698
 699 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 700 {
 701         return device->blocked;
 702 }
 703
 704 int __connman_device_scan(struct connman_device *device)
 705 {
 706         if (!device->driver || !device->driver->scan)
 707                 return -EOPNOTSUPP;
 708
 709         if (device->powered == FALSE)
 710                 return -ENOLINK;
 711
 712         reset_scan_trigger(device);
 713
 714         return device->driver->scan(device);
 715 }
 716
 717 int __connman_device_enable_persistent(struct connman_device *device)
 718 {
 719         int err;
 720
 721         DBG("device %p", device);
 722
 723         device->powered_persistent = TRUE;
 724
 725         __connman_storage_save_device(device);
 726
 727         err = __connman_device_enable(device);
 728         if (err == 0 || err == -EINPROGRESS) {
 729                 device->offlinemode = FALSE;
 730                 if (__connman_profile_get_offlinemode() == TRUE) {
 731                         __connman_profile_set_offlinemode(FALSE, FALSE);
 732
 733                         __connman_profile_save_default();
 734                 }
 735         }
 736
 737         return err;
 738 }
 739
 740 int __connman_device_disable_persistent(struct connman_device *device)
 741 {
 742         DBG("device %p", device);
 743
 744         device->powered_persistent = FALSE;
 745
 746         __connman_storage_save_device(device);
 747
 748         return __connman_device_disable(device);
 749 }
 750
 751 int __connman_device_disconnect(struct connman_device *device)
 752 {
 753         GHashTableIter iter;
 754         gpointer key, value;
 755
 756         DBG("device %p", device);
 757
 758         connman_device_set_disconnected(device, TRUE);
 759
 760         g_hash_table_iter_init(&iter, device->networks);
 761
 762         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 763                 struct connman_network *network = value;
 764
 765                 if (__connman_network_get_connecting(network) == TRUE) {
 766                         /*
 767                          * Skip network in the process of connecting.
 768                          * This is a workaround for WiFi networks serviced
 769                          * by the supplicant plugin that hold a reference
 770                          * to the network.  If we disconnect the network
 771                          * here then the referenced object will not be
 772                          * registered and usage (like launching DHCP client)
 773                          * will fail.  There is nothing to be gained by
 774                          * removing the network here anyway.
 775                          */
 776                         connman_warn("Skipping disconnect of %s",
 777                                 connman_network_get_identifier(network));
 778                         continue;
 779                 }
 780
 781                 __connman_network_disconnect(network);
 782         }
 783
 784         return 0;
 785 }
 786
 787 static void mark_network_unavailable(gpointer key, gpointer value,
 788                                                         gpointer user_data)
 789 {
 790         struct connman_network *network = value;
 791
 792         if (connman_network_get_connected(network) == TRUE)
 793                 return;
 794
 795         connman_network_set_available(network, FALSE);
 796 }
 797
 798 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 799                                                         gpointer user_data)
 800 {
 801         struct connman_network *network = value;
 802
 803         if (connman_network_get_connected(network) == TRUE)
 804                 return FALSE;
 805
 806         if (connman_network_get_available(network) == TRUE)
 807                 return FALSE;
 808
 809         return TRUE;
 810 }
 811
 812 void __connman_device_cleanup_networks(struct connman_device *device)
 813 {
 814         g_hash_table_foreach_remove(device->networks,
 815                                         remove_unavailable_network, NULL);
 816 }
 817
 818 connman_bool_t __connman_device_scanning(struct connman_device *device)
 819 {
 820         return device->scanning;
 821 }
 822
 823 /**
 824  * connman_device_set_scanning:
 825  * @device: device structure
 826  * @scanning: scanning state
 827  *
 828  * Change scanning state of device
 829  */
 830 int connman_device_set_scanning(struct connman_device *device,
 831                                                 connman_bool_t scanning)
 832 {
 833         DBG("device %p scanning %d", device, scanning);
 834
 835         if (!device->driver || !device->driver->scan)
 836                 return -EINVAL;
 837
 838         if (device->scanning == scanning)
 839                 return -EALREADY;
 840
 841         device->scanning = scanning;
 842
 843         if (scanning == TRUE) {
 844                 reset_scan_trigger(device);
 845
 846                 g_hash_table_foreach(device->networks,
 847                                         mark_network_unavailable, NULL);
 848
 849                 return 0;
 850         }
 851
 852         __connman_device_cleanup_networks(device);
 853
 854         if (device->connections > 0)
 855                 return 0;
 856
 857         __connman_service_auto_connect();
 858
 859         return 0;
 860 }
 861
 862 /**
 863  * connman_device_set_disconnected:
 864  * @device: device structure
 865  * @disconnected: disconnected state
 866  *
 867  * Change disconnected state of device (only for device with networks)
 868  */
 869 int connman_device_set_disconnected(struct connman_device *device,
 870                                                 connman_bool_t disconnected)
 871 {
 872         DBG("device %p disconnected %d", device, disconnected);
 873
 874         if (device->disconnected == disconnected)
 875                 return -EALREADY;
 876
 877         device->disconnected = disconnected;
 878
 879         if (disconnected == TRUE)
 880                 force_scan_trigger(device);
 881
 882         return 0;
 883 }
 884
 885 /**
 886  * connman_device_get_disconnected:
 887  * @device: device structure
 888  *
 889  * Get device disconnected state
 890  */
 891 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 892 {
 893         return device->disconnected;
 894 }
 895
 896 /**
 897  * connman_device_set_string:
 898  * @device: device structure
 899  * @key: unique identifier
 900  * @value: string value
 901  *
 902  * Set string value for specific key
 903  */
 904 int connman_device_set_string(struct connman_device *device,
 905                                         const char *key, const char *value)
 906 {
 907         DBG("device %p key %s value %s", device, key, value);
 908
 909         if (g_str_equal(key, "Address") == TRUE) {
 910                 g_free(device->address);
 911                 device->address = g_strdup(value);
 912         } else if (g_str_equal(key, "Name") == TRUE) {
 913                 g_free(device->name);
 914                 device->name = g_strdup(value);
 915         } else if (g_str_equal(key, "Node") == TRUE) {
 916                 g_free(device->node);
 917                 device->node = g_strdup(value);
 918         }
 919
 920         return connman_element_set_string(&device->element, key, value);
 921 }
 922
 923 /**
 924  * connman_device_get_string:
 925  * @device: device structure
 926  * @key: unique identifier
 927  *
 928  * Get string value for specific key
 929  */
 930 const char *connman_device_get_string(struct connman_device *device,
 931                                                         const char *key)
 932 {
 933         DBG("device %p key %s", device, key);
 934
 935         if (g_str_equal(key, "Address") == TRUE)
 936                 return device->address;
 937         else if (g_str_equal(key, "Name") == TRUE)
 938                 return device->name;
 939         else if (g_str_equal(key, "Node") == TRUE)
 940                 return device->node;
 941         else if (g_str_equal(key, "Interface") == TRUE)
 942                 return device->interface;
 943
 944         return connman_element_get_string(&device->element, key);
 945 }
 946
 947 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 948 {
 949         struct connman_device *device = element->device;
 950         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 951         connman_bool_t powered;
 952
 953         DBG("element %p name %s", element, element->name);
 954
 955         if (device == NULL)
 956                 return;
 957
 958         device->offlinemode = offlinemode;
 959
 960         if (device->blocked == TRUE)
 961                 return;
 962
 963         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 964
 965         if (device->powered == powered)
 966                 return;
 967
 968         if (device->powered_persistent == FALSE)
 969                 powered = FALSE;
 970
 971         set_powered(device, powered);
 972 }
 973
 974 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 975 {
 976         DBG("offlinmode %d", offlinemode);
 977
 978         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 979                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 980
 981         __connman_notifier_offlinemode(offlinemode);
 982
 983         return 0;
 984 }
 985
 986 void __connman_device_increase_connections(struct connman_device *device)
 987 {
 988         if (device == NULL)
 989                 return;
 990
 991         device->connections++;
 992 }
 993
 994 void __connman_device_decrease_connections(struct connman_device *device)
 995 {
 996         if (device == NULL)
 997                 return;
 998
 999         device->connections--;
1000 }
1001
1002 /**
1003  * connman_device_add_network:
1004  * @device: device structure
1005  * @network: network structure
1006  *
1007  * Add new network to the device
1008  */
1009 int connman_device_add_network(struct connman_device *device,
1010                                         struct connman_network *network)
1011 {
1012         const char *identifier = connman_network_get_identifier(network);
1013         int err;
1014
1015         DBG("device %p network %p", device, network);
1016
1017         if (identifier == NULL)
1018                 return -EINVAL;
1019
1020         __connman_network_set_device(network, device);
1021
1022         err = connman_element_register((struct connman_element *) network,
1023                                                         &device->element);
1024         if (err < 0) {
1025                 __connman_network_set_device(network, NULL);
1026                 return err;
1027         }
1028
1029         g_hash_table_insert(device->networks, g_strdup(identifier),
1030                                                                 network);
1031
1032         return 0;
1033 }
1034
1035 /**
1036  * connman_device_get_network:
1037  * @device: device structure
1038  * @identifier: network identifier
1039  *
1040  * Get network for given identifier
1041  */
1042 struct connman_network *connman_device_get_network(struct connman_device *device,
1043                                                         const char *identifier)
1044 {
1045         DBG("device %p identifier %s", device, identifier);
1046
1047         return g_hash_table_lookup(device->networks, identifier);
1048 }
1049
1050 /**
1051  * connman_device_remove_network:
1052  * @device: device structure
1053  * @identifier: network identifier
1054  *
1055  * Remove network for given identifier
1056  */
1057 int connman_device_remove_network(struct connman_device *device,
1058                                                         const char *identifier)
1059 {
1060         DBG("device %p identifier %s", device, identifier);
1061
1062         g_hash_table_remove(device->networks, identifier);
1063
1064         return 0;
1065 }
1066
1067 void connman_device_remove_all_networks(struct connman_device *device)
1068 {
1069         g_hash_table_remove_all(device->networks);
1070 }
1071
1072 void __connman_device_set_network(struct connman_device *device,
1073                                         struct connman_network *network)
1074 {
1075         const char *name;
1076
1077         if (device == NULL)
1078                 return;
1079
1080         if (device->network == network)
1081                 return;
1082
1083         if (device->network != NULL)
1084                 connman_network_unref(device->network);
1085
1086         if (network != NULL) {
1087                 name = connman_network_get_string(network,
1088                                                 CONNMAN_PROPERTY_ID_NAME);
1089                 g_free(device->last_network);
1090                 device->last_network = g_strdup(name);
1091
1092                 device->network = connman_network_ref(network);
1093         } else {
1094                 g_free(device->last_network);
1095                 device->last_network = NULL;
1096
1097                 device->network = NULL;
1098         }
1099 }
1100
1101 void __connman_device_set_reconnect(struct connman_device *device,
1102                                                 connman_bool_t reconnect)
1103 {
1104         device->reconnect = reconnect;
1105 }
1106
1107 connman_bool_t  __connman_device_get_reconnect(
1108                                 struct connman_device *device)
1109 {
1110         return device->reconnect;
1111 }
1112
1113 /**
1114  * connman_device_register:
1115  * @device: device structure
1116  *
1117  * Register device with the system
1118  */
1119 int connman_device_register(struct connman_device *device)
1120 {
1121         __connman_storage_load_device(device);
1122
1123         device->offlinemode = __connman_profile_get_offlinemode();
1124
1125         return connman_element_register(&device->element, NULL);
1126 }
1127
1128 /**
1129  * connman_device_unregister:
1130  * @device: device structure
1131  *
1132  * Unregister device with the system
1133  */
1134 void connman_device_unregister(struct connman_device *device)
1135 {
1136         __connman_storage_save_device(device);
1137
1138         connman_element_unregister(&device->element);
1139 }
1140
1141 /**
1142  * connman_device_get_data:
1143  * @device: device structure
1144  *
1145  * Get private device data pointer
1146  */
1147 void *connman_device_get_data(struct connman_device *device)
1148 {
1149         return device->driver_data;
1150 }
1151
1152 /**
1153  * connman_device_set_data:
1154  * @device: device structure
1155  * @data: data pointer
1156  *
1157  * Set private device data pointer
1158  */
1159 void connman_device_set_data(struct connman_device *device, void *data)
1160 {
1161         device->driver_data = data;
1162 }
1163
1164 static gboolean match_driver(struct connman_device *device,
1165                                         struct connman_device_driver *driver)
1166 {
1167         if (device->type == driver->type ||
1168                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1169                 return TRUE;
1170
1171         return FALSE;
1172 }
1173
1174 static int device_probe(struct connman_element *element)
1175 {
1176         struct connman_device *device = element->device;
1177         GSList *list;
1178
1179         DBG("element %p name %s", element, element->name);
1180
1181         if (device == NULL)
1182                 return -ENODEV;
1183
1184         if (device->driver != NULL)
1185                 return -EALREADY;
1186
1187         for (list = driver_list; list; list = list->next) {
1188                 struct connman_device_driver *driver = list->data;
1189
1190                 if (match_driver(device, driver) == FALSE)
1191                         continue;
1192
1193                 DBG("driver %p name %s", driver, driver->name);
1194
1195                 if (driver->probe(device) == 0) {
1196                         device->driver = driver;
1197                         break;
1198                 }
1199         }
1200
1201         if (device->driver == NULL)
1202                 return -ENODEV;
1203
1204         return setup_device(device);
1205 }
1206
1207 static void device_remove(struct connman_element *element)
1208 {
1209         struct connman_device *device = element->device;
1210
1211         DBG("element %p name %s", element, element->name);
1212
1213         if (device == NULL)
1214                 return;
1215
1216         if (device->driver == NULL)
1217                 return;
1218
1219         remove_device(device);
1220 }
1221
1222 static struct connman_driver device_driver = {
1223         .name           = "device",
1224         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1225         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1226         .probe          = device_probe,
1227         .remove         = device_remove,
1228 };
1229
1230 static int device_load(struct connman_device *device)
1231 {
1232         const char *ident = __connman_profile_active_ident();
1233         GKeyFile *keyfile;
1234         GError *error = NULL;
1235         gchar *identifier;
1236         connman_bool_t powered;
1237         int val;
1238
1239         DBG("device %p", device);
1240
1241         keyfile = __connman_storage_open_profile(ident);
1242         if (keyfile == NULL)
1243                 return 0;
1244
1245         identifier = g_strdup_printf("device_%s", device->element.name);
1246         if (identifier == NULL)
1247                 goto done;
1248
1249         powered = g_key_file_get_boolean(keyfile, identifier,
1250                                                 "Powered", &error);
1251         if (error == NULL)
1252                 device->powered_persistent = powered;
1253         g_clear_error(&error);
1254
1255         val = g_key_file_get_integer(keyfile, identifier,
1256                                                 "ScanInterval", &error);
1257         if (error == NULL)
1258                 device->scan_interval = val;
1259         g_clear_error(&error);
1260
1261 done:
1262         g_free(identifier);
1263
1264         __connman_storage_close_profile(ident, keyfile, FALSE);
1265
1266         return 0;
1267 }
1268
1269 static int device_save(struct connman_device *device)
1270 {
1271         const char *ident = __connman_profile_active_ident();
1272         GKeyFile *keyfile;
1273         gchar *identifier;
1274
1275         DBG("device %p", device);
1276
1277         keyfile = __connman_storage_open_profile(ident);
1278         if (keyfile == NULL)
1279                 return 0;
1280
1281         identifier = g_strdup_printf("device_%s", device->element.name);
1282         if (identifier == NULL)
1283                 goto done;
1284
1285         g_key_file_set_boolean(keyfile, identifier,
1286                                         "Powered", device->powered_persistent);
1287
1288         g_key_file_set_integer(keyfile, identifier,
1289                                         "ScanInterval", device->scan_interval);
1290
1291 done:
1292         g_free(identifier);
1293
1294         __connman_storage_close_profile(ident, keyfile, TRUE);
1295
1296         return 0;
1297 }
1298
1299 static struct connman_storage device_storage = {
1300         .name           = "device",
1301         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1302         .device_load    = device_load,
1303         .device_save    = device_save,
1304 };
1305
1306 int __connman_device_init(void)
1307 {
1308         DBG("");
1309
1310         if (connman_storage_register(&device_storage) < 0)
1311                 connman_error("Failed to register device storage");
1312
1313         return connman_driver_register(&device_driver);
1314 }
1315
1316 void __connman_device_cleanup(void)
1317 {
1318         DBG("");
1319
1320         connman_driver_unregister(&device_driver);
1321
1322         connman_storage_unregister(&device_storage);
1323 }