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 <gdbus.h>
  30
  31 #include "connman.h"
  32
  33 static DBusConnection *connection = NULL;
  34
  35 struct connman_device {
  36         struct connman_element element;
  37         enum connman_device_type type;
  38         connman_bool_t offlinemode;
  39         connman_bool_t blocked;
  40         connman_bool_t powered;
  41         connman_bool_t powered_pending;
  42         connman_bool_t powered_persistent;
  43         connman_bool_t scanning;
  44         connman_bool_t disconnected;
  45         connman_bool_t reconnect;
  46         connman_uint16_t scan_interval;
  47         char *name;
  48         char *node;
  49         char *address;
  50         char *interface;
  51         char *control;
  52         char *ident;
  53         int phyindex;
  54         unsigned int connections;
  55         guint scan_timeout;
  56
  57         struct connman_device_driver *driver;
  58         void *driver_data;
  59
  60         char *last_network;
  61         struct connman_network *network;
  62         GHashTable *networks;
  63 };
  64
  65 static gboolean device_scan_trigger(gpointer user_data)
  66 {
  67         struct connman_device *device = user_data;
  68
  69         DBG("device %p", device);
  70
  71         if (device->driver == NULL) {
  72                 device->scan_timeout = 0;
  73                 return FALSE;
  74         }
  75
  76         if (device->driver->scan)
  77                 device->driver->scan(device);
  78
  79         return TRUE;
  80 }
  81
  82 static void clear_scan_trigger(struct connman_device *device)
  83 {
  84         if (device->scan_timeout > 0) {
  85                 g_source_remove(device->scan_timeout);
  86                 device->scan_timeout = 0;
  87         }
  88 }
  89
  90 static void reset_scan_trigger(struct connman_device *device)
  91 {
  92         clear_scan_trigger(device);
  93
  94         if (device->scan_interval > 0) {
  95                 guint interval = device->scan_interval;
  96                 device->scan_timeout = g_timeout_add_seconds(interval,
  97                                         device_scan_trigger, device);
  98         }
  99 }
 100
 101 static void force_scan_trigger(struct connman_device *device)
 102 {
 103         clear_scan_trigger(device);
 104
 105         device->scan_timeout = g_timeout_add_seconds(5,
 106                                         device_scan_trigger, device);
 107 }
 108
 109 void connman_device_schedule_scan(struct connman_device *device)
 110 {
 111         reset_scan_trigger(device);
 112 }
 113
 114 static const char *type2description(enum connman_device_type type)
 115 {
 116         switch (type) {
 117         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 118         case CONNMAN_DEVICE_TYPE_VENDOR:
 119                 break;
 120         case CONNMAN_DEVICE_TYPE_ETHERNET:
 121                 return "Ethernet";
 122         case CONNMAN_DEVICE_TYPE_WIFI:
 123                 return "Wireless";
 124         case CONNMAN_DEVICE_TYPE_WIMAX:
 125                 return "WiMAX";
 126         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 127                 return "Bluetooth";
 128         case CONNMAN_DEVICE_TYPE_GPS:
 129                 return "GPS";
 130         case CONNMAN_DEVICE_TYPE_CELLULAR:
 131                 return "Cellular";
 132         }
 133
 134         return NULL;
 135 }
 136
 137 static const char *type2string(enum connman_device_type type)
 138 {
 139         switch (type) {
 140         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 141         case CONNMAN_DEVICE_TYPE_VENDOR:
 142                 break;
 143         case CONNMAN_DEVICE_TYPE_ETHERNET:
 144                 return "ethernet";
 145         case CONNMAN_DEVICE_TYPE_WIFI:
 146                 return "wifi";
 147         case CONNMAN_DEVICE_TYPE_WIMAX:
 148                 return "wimax";
 149         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 150                 return "bluetooth";
 151         case CONNMAN_DEVICE_TYPE_GPS:
 152                 return "gps";
 153         case CONNMAN_DEVICE_TYPE_CELLULAR:
 154                 return "cellular";
 155         }
 156
 157         return NULL;
 158 }
 159
 160 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 161 {
 162         enum connman_device_type type = connman_device_get_type(device);
 163
 164         switch (type) {
 165         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 166         case CONNMAN_DEVICE_TYPE_VENDOR:
 167         case CONNMAN_DEVICE_TYPE_GPS:
 168                 break;
 169         case CONNMAN_DEVICE_TYPE_ETHERNET:
 170                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 171         case CONNMAN_DEVICE_TYPE_WIFI:
 172                 return CONNMAN_SERVICE_TYPE_WIFI;
 173         case CONNMAN_DEVICE_TYPE_WIMAX:
 174                 return CONNMAN_SERVICE_TYPE_WIMAX;
 175         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 176                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 177         case CONNMAN_DEVICE_TYPE_CELLULAR:
 178                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 179         }
 180
 181         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 182 }
 183
 184 int __connman_device_enable(struct connman_device *device)
 185 {
 186         int err;
 187
 188         DBG("device %p %d", device, device->blocked);
 189
 190         if (!device->driver || !device->driver->enable)
 191                 return -EOPNOTSUPP;
 192
 193         if (device->powered_pending == TRUE)
 194                 return -EALREADY;
 195
 196         if (device->blocked == TRUE)
 197                 return -ENOLINK;
 198
 199         err = device->driver->enable(device);
 200         if (err < 0) {
 201                 if (err == -EINPROGRESS) {
 202                         device->powered_pending = TRUE;
 203                         device->offlinemode = FALSE;
 204                         if (__connman_profile_get_offlinemode() == TRUE)
 205                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 206                 }
 207                 return err;
 208         }
 209
 210         device->powered_pending = TRUE;
 211         device->powered = TRUE;
 212         device->offlinemode = FALSE;
 213         if (__connman_profile_get_offlinemode() == TRUE)
 214                 __connman_profile_set_offlinemode(FALSE, FALSE);
 215
 216         __connman_technology_enable_device(device);
 217
 218         return 0;
 219 }
 220
 221 int __connman_device_disable(struct connman_device *device)
 222 {
 223         int err;
 224
 225         DBG("device %p", device);
 226
 227         if (!device->driver || !device->driver->disable)
 228                 return -EOPNOTSUPP;
 229
 230         if (device->powered == FALSE)
 231                 return -ENOLINK;
 232
 233         if (device->powered_pending == FALSE)
 234                 return -EALREADY;
 235
 236         device->reconnect = FALSE;
 237
 238         clear_scan_trigger(device);
 239
 240         g_hash_table_remove_all(device->networks);
 241
 242         err = device->driver->disable(device);
 243         if (err < 0) {
 244                 if (err == -EINPROGRESS)
 245                         device->powered_pending = FALSE;
 246                 return err;
 247         }
 248
 249         device->powered_pending = FALSE;
 250         device->powered = FALSE;
 251
 252         __connman_technology_disable_device(device);
 253
 254         return 0;
 255 }
 256
 257 static int set_powered(struct connman_device *device, connman_bool_t powered)
 258 {
 259         DBG("device %p powered %d", device, powered);
 260
 261         if (powered == TRUE)
 262                 return __connman_device_enable(device);
 263         else
 264                 return __connman_device_disable(device);
 265 }
 266
 267 static int setup_device(struct connman_device *device)
 268 {
 269         DBG("device %p", device);
 270
 271         __connman_technology_add_device(device);
 272
 273         if (device->offlinemode == FALSE &&
 274                                 device->powered_persistent == TRUE)
 275                 __connman_device_enable(device);
 276
 277         return 0;
 278 }
 279
 280 static void probe_driver(struct connman_element *element, gpointer user_data)
 281 {
 282         struct connman_device_driver *driver = user_data;
 283
 284         DBG("element %p name %s", element, element->name);
 285
 286         if (element->device == NULL)
 287                 return;
 288
 289         if (element->device->driver != NULL)
 290                 return;
 291
 292         if (driver->type != element->device->type)
 293                 return;
 294
 295         if (driver->probe(element->device) < 0)
 296                 return;
 297
 298         element->device->driver = driver;
 299
 300         __connman_element_set_driver(element);
 301
 302         setup_device(element->device);
 303 }
 304
 305 static void remove_device(struct connman_device *device)
 306 {
 307         int err;
 308
 309         DBG("device %p", device);
 310
 311         err = __connman_device_disable(device);
 312         if (err < 0 && err == -EINPROGRESS)
 313                 __connman_technology_disable_device(device);
 314
 315         __connman_technology_remove_device(device);
 316
 317         if (device->driver->remove)
 318                 device->driver->remove(device);
 319
 320         device->driver = NULL;
 321 }
 322
 323 static void remove_driver(struct connman_element *element, gpointer user_data)
 324 {
 325         struct connman_device_driver *driver = user_data;
 326
 327         DBG("element %p name %s", element, element->name);
 328
 329         if (element->device == NULL)
 330                 return;
 331
 332         if (element->device->driver == driver)
 333                 remove_device(element->device);
 334 }
 335
 336 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 337 {
 338         if (device == NULL || device->driver == NULL)
 339                 return FALSE;
 340
 341         return TRUE;
 342 }
 343
 344 static GSList *driver_list = NULL;
 345
 346 static gint compare_priority(gconstpointer a, gconstpointer b)
 347 {
 348         const struct connman_device_driver *driver1 = a;
 349         const struct connman_device_driver *driver2 = b;
 350
 351         return driver2->priority - driver1->priority;
 352 }
 353
 354 /**
 355  * connman_device_driver_register:
 356  * @driver: device driver definition
 357  *
 358  * Register a new device driver
 359  *
 360  * Returns: %0 on success
 361  */
 362 int connman_device_driver_register(struct connman_device_driver *driver)
 363 {
 364         DBG("driver %p name %s", driver, driver->name);
 365
 366         driver_list = g_slist_insert_sorted(driver_list, driver,
 367                                                         compare_priority);
 368
 369         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 370                                                 probe_driver, driver);
 371
 372         return 0;
 373 }
 374
 375 /**
 376  * connman_device_driver_unregister:
 377  * @driver: device driver definition
 378  *
 379  * Remove a previously registered device driver
 380  */
 381 void connman_device_driver_unregister(struct connman_device_driver *driver)
 382 {
 383         DBG("driver %p name %s", driver, driver->name);
 384
 385         driver_list = g_slist_remove(driver_list, driver);
 386
 387         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 388                                                 remove_driver, driver);
 389 }
 390
 391 static void unregister_network(gpointer data)
 392 {
 393         struct connman_network *network = data;
 394
 395         DBG("network %p", network);
 396
 397         connman_element_unregister((struct connman_element *) network);
 398
 399         __connman_network_set_device(network, NULL);
 400
 401         connman_network_unref(network);
 402 }
 403
 404 static void device_destruct(struct connman_element *element)
 405 {
 406         struct connman_device *device = element->device;
 407
 408         DBG("element %p name %s", element, element->name);
 409
 410         clear_scan_trigger(device);
 411
 412         g_free(device->ident);
 413         g_free(device->node);
 414         g_free(device->name);
 415         g_free(device->address);
 416         g_free(device->control);
 417         g_free(device->interface);
 418
 419         g_free(device->last_network);
 420
 421         g_hash_table_destroy(device->networks);
 422         device->networks = NULL;
 423 }
 424
 425 /**
 426  * connman_device_create:
 427  * @node: device node name (for example an address)
 428  * @type: device type
 429  *
 430  * Allocate a new device of given #type and assign the #node name to it.
 431  *
 432  * Returns: a newly-allocated #connman_device structure
 433  */
 434 struct connman_device *connman_device_create(const char *node,
 435                                                 enum connman_device_type type)
 436 {
 437         struct connman_device *device;
 438         const char *str;
 439         enum connman_service_type service_type;
 440
 441         DBG("node %s type %d", node, type);
 442
 443         device = g_try_new0(struct connman_device, 1);
 444         if (device == NULL)
 445                 return NULL;
 446
 447         DBG("device %p", device);
 448
 449         __connman_element_initialize(&device->element);
 450
 451         device->element.name = g_strdup(node);
 452         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 453
 454         device->element.device = device;
 455         device->element.destruct = device_destruct;
 456
 457         str = type2string(type);
 458         if (str != NULL)
 459                 connman_element_set_string(&device->element,
 460                                         CONNMAN_PROPERTY_ID_TYPE, str);
 461
 462         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 463
 464         device->type = type;
 465         device->name = g_strdup(type2description(device->type));
 466
 467         device->powered_persistent = TRUE;
 468
 469         device->phyindex = -1;
 470
 471         service_type = __connman_device_get_service_type(device);
 472         device->blocked = __connman_technology_get_blocked(service_type);
 473
 474         switch (type) {
 475         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 476         case CONNMAN_DEVICE_TYPE_VENDOR:
 477                 device->scan_interval = 0;
 478                 break;
 479         case CONNMAN_DEVICE_TYPE_ETHERNET:
 480         case CONNMAN_DEVICE_TYPE_WIFI:
 481                 device->scan_interval = 300;
 482                 break;
 483         case CONNMAN_DEVICE_TYPE_WIMAX:
 484                 device->scan_interval = 0;
 485                 break;
 486         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 487                 device->scan_interval = 0;
 488                 break;
 489         case CONNMAN_DEVICE_TYPE_GPS:
 490                 device->scan_interval = 0;
 491                 break;
 492         case CONNMAN_DEVICE_TYPE_CELLULAR:
 493                 device->scan_interval = 0;
 494                 break;
 495         }
 496
 497         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 498                                                 g_free, unregister_network);
 499
 500         return device;
 501 }
 502
 503 /**
 504  * connman_device_ref:
 505  * @device: device structure
 506  *
 507  * Increase reference counter of device
 508  */
 509 struct connman_device *connman_device_ref(struct connman_device *device)
 510 {
 511         if (connman_element_ref(&device->element) == NULL)
 512                 return NULL;
 513
 514         return device;
 515 }
 516
 517 /**
 518  * connman_device_unref:
 519  * @device: device structure
 520  *
 521  * Decrease reference counter of device
 522  */
 523 void connman_device_unref(struct connman_device *device)
 524 {
 525         connman_element_unref(&device->element);
 526 }
 527
 528 const char *__connman_device_get_type(struct connman_device *device)
 529 {
 530         return type2string(device->type);
 531 }
 532
 533 /**
 534  * connman_device_get_type:
 535  * @device: device structure
 536  *
 537  * Get type of device
 538  */
 539 enum connman_device_type connman_device_get_type(struct connman_device *device)
 540 {
 541         return device->type;
 542 }
 543
 544 /**
 545  * connman_device_get_name:
 546  * @device: device structure
 547  *
 548  * Get unique name of device
 549  */
 550 const char *connman_device_get_name(struct connman_device *device)
 551 {
 552         return device->element.name;
 553 }
 554
 555 /**
 556  * connman_device_get_path:
 557  * @device: device structure
 558  *
 559  * Get path name of device
 560  */
 561 const char *connman_device_get_path(struct connman_device *device)
 562 {
 563         return device->element.path;
 564 }
 565
 566 /**
 567  * connman_device_set_index:
 568  * @device: device structure
 569  * @index: index number
 570  *
 571  * Set index number of device
 572  */
 573 void connman_device_set_index(struct connman_device *device, int index)
 574 {
 575         device->element.index = index;
 576 }
 577
 578 /**
 579  * connman_device_get_index:
 580  * @device: device structure
 581  *
 582  * Get index number of device
 583  */
 584 int connman_device_get_index(struct connman_device *device)
 585 {
 586         return device->element.index;
 587 }
 588
 589 int __connman_device_get_phyindex(struct connman_device *device)
 590 {
 591         return device->phyindex;
 592 }
 593
 594 void __connman_device_set_phyindex(struct connman_device *device,
 595                                                         int phyindex)
 596 {
 597         device->phyindex = phyindex;
 598 }
 599
 600 /**
 601  * connman_device_set_interface:
 602  * @device: device structure
 603  * @interface: interface name
 604  * @control: control interface
 605  *
 606  * Set interface name of device
 607  */
 608 void connman_device_set_interface(struct connman_device *device,
 609                                 const char *interface, const char *control)
 610 {
 611         g_free(device->element.devname);
 612         device->element.devname = g_strdup(interface);
 613
 614         g_free(device->interface);
 615         device->interface = g_strdup(interface);
 616
 617         g_free(device->control);
 618         device->control = g_strdup(control);
 619
 620         if (device->name == NULL) {
 621                 const char *str = type2description(device->type);
 622                 if (str != NULL && device->interface != NULL)
 623                         device->name = g_strdup_printf("%s (%s)", str,
 624                                                         device->interface);
 625         }
 626 }
 627
 628 const char *connman_device_get_control(struct connman_device *device)
 629 {
 630         return device->control;
 631 }
 632
 633 /**
 634  * connman_device_set_ident:
 635  * @device: device structure
 636  * @ident: unique identifier
 637  *
 638  * Set unique identifier of device
 639  */
 640 void connman_device_set_ident(struct connman_device *device,
 641                                                         const char *ident)
 642 {
 643         g_free(device->ident);
 644         device->ident = g_strdup(ident);
 645 }
 646
 647 const char *connman_device_get_ident(struct connman_device *device)
 648 {
 649         return device->ident;
 650 }
 651
 652 /**
 653  * connman_device_set_powered:
 654  * @device: device structure
 655  * @powered: powered state
 656  *
 657  * Change power state of device
 658  */
 659 int connman_device_set_powered(struct connman_device *device,
 660                                                 connman_bool_t powered)
 661 {
 662         DBG("driver %p powered %d", device, powered);
 663
 664         if (device->powered == powered) {
 665                 device->powered_pending = powered;
 666                 return -EALREADY;
 667         }
 668
 669         if (powered == TRUE)
 670                 __connman_device_enable(device);
 671         else
 672                 __connman_device_disable(device);
 673
 674         device->powered = powered;
 675         device->powered_pending = powered;
 676
 677         if (device->powered == TRUE)
 678                 __connman_technology_enable_device(device);
 679         else
 680                 __connman_technology_disable_device(device);
 681
 682         if (device->offlinemode == TRUE && powered == TRUE)
 683                 return connman_device_set_powered(device, FALSE);
 684
 685         if (powered == FALSE)
 686                 return 0;
 687
 688         reset_scan_trigger(device);
 689
 690         if (device->driver->scan)
 691                 device->driver->scan(device);
 692
 693         return 0;
 694 }
 695
 696 int __connman_device_set_blocked(struct connman_device *device,
 697                                                 connman_bool_t blocked)
 698 {
 699         connman_bool_t powered;
 700
 701         DBG("device %p blocked %d", device, blocked);
 702
 703         device->blocked = blocked;
 704
 705         if (device->offlinemode == TRUE)
 706                 return 0;
 707
 708         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 709
 710         if (blocked == FALSE)
 711                 powered = device->powered_persistent;
 712         else
 713                 powered = FALSE;
 714
 715         return set_powered(device, powered);
 716 }
 717
 718 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 719 {
 720         return device->blocked;
 721 }
 722
 723 int __connman_device_scan(struct connman_device *device)
 724 {
 725         if (!device->driver || !device->driver->scan)
 726                 return -EOPNOTSUPP;
 727
 728         if (device->powered == FALSE)
 729                 return -ENOLINK;
 730
 731         reset_scan_trigger(device);
 732
 733         return device->driver->scan(device);
 734 }
 735
 736 int __connman_device_enable_persistent(struct connman_device *device)
 737 {
 738         int err;
 739
 740         DBG("device %p", device);
 741
 742         device->powered_persistent = TRUE;
 743
 744         __connman_storage_save_device(device);
 745
 746         err = __connman_device_enable(device);
 747         if (err == 0 || err == -EINPROGRESS) {
 748                 device->offlinemode = FALSE;
 749                 if (__connman_profile_get_offlinemode() == TRUE) {
 750                         __connman_profile_set_offlinemode(FALSE, FALSE);
 751
 752                         __connman_profile_save_default();
 753                 }
 754         }
 755
 756         return err;
 757 }
 758
 759 int __connman_device_disable_persistent(struct connman_device *device)
 760 {
 761         DBG("device %p", device);
 762
 763         device->powered_persistent = FALSE;
 764
 765         __connman_storage_save_device(device);
 766
 767         return __connman_device_disable(device);
 768 }
 769
 770 int __connman_device_disconnect(struct connman_device *device)
 771 {
 772         GHashTableIter iter;
 773         gpointer key, value;
 774
 775         DBG("device %p", device);
 776
 777         connman_device_set_disconnected(device, TRUE);
 778
 779         g_hash_table_iter_init(&iter, device->networks);
 780
 781         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 782                 struct connman_network *network = value;
 783
 784                 if (__connman_network_get_connecting(network) == TRUE) {
 785                         /*
 786                          * Skip network in the process of connecting.
 787                          * This is a workaround for WiFi networks serviced
 788                          * by the supplicant plugin that hold a reference
 789                          * to the network.  If we disconnect the network
 790                          * here then the referenced object will not be
 791                          * registered and usage (like launching DHCP client)
 792                          * will fail.  There is nothing to be gained by
 793                          * removing the network here anyway.
 794                          */
 795                         connman_warn("Skipping disconnect of %s",
 796                                 connman_network_get_identifier(network));
 797                         continue;
 798                 }
 799
 800                 __connman_network_disconnect(network);
 801         }
 802
 803         return 0;
 804 }
 805
 806 static void mark_network_unavailable(gpointer key, gpointer value,
 807                                                         gpointer user_data)
 808 {
 809         struct connman_network *network = value;
 810
 811         if (connman_network_get_connected(network) == TRUE)
 812                 return;
 813
 814         connman_network_set_available(network, FALSE);
 815 }
 816
 817 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 818                                                         gpointer user_data)
 819 {
 820         struct connman_network *network = value;
 821
 822         if (connman_network_get_connected(network) == TRUE)
 823                 return FALSE;
 824
 825         if (connman_network_get_available(network) == TRUE)
 826                 return FALSE;
 827
 828         return TRUE;
 829 }
 830
 831 void __connman_device_cleanup_networks(struct connman_device *device)
 832 {
 833         g_hash_table_foreach_remove(device->networks,
 834                                         remove_unavailable_network, NULL);
 835 }
 836
 837 /**
 838  * connman_device_set_scanning:
 839  * @device: device structure
 840  * @scanning: scanning state
 841  *
 842  * Change scanning state of device
 843  */
 844 int connman_device_set_scanning(struct connman_device *device,
 845                                                 connman_bool_t scanning)
 846 {
 847         DBG("device %p scanning %d", device, scanning);
 848
 849         if (!device->driver || !device->driver->scan)
 850                 return -EINVAL;
 851
 852         if (device->scanning == scanning)
 853                 return -EALREADY;
 854
 855         device->scanning = scanning;
 856
 857         if (scanning == TRUE) {
 858                 reset_scan_trigger(device);
 859
 860                 g_hash_table_foreach(device->networks,
 861                                         mark_network_unavailable, NULL);
 862
 863                 return 0;
 864         }
 865
 866         __connman_device_cleanup_networks(device);
 867
 868         if (device->connections > 0)
 869                 return 0;
 870
 871         if (device->disconnected == TRUE)
 872                 return 0;
 873
 874         __connman_service_auto_connect();
 875
 876         return 0;
 877 }
 878
 879 /**
 880  * connman_device_set_disconnected:
 881  * @device: device structure
 882  * @disconnected: disconnected state
 883  *
 884  * Change disconnected state of device (only for device with networks)
 885  */
 886 int connman_device_set_disconnected(struct connman_device *device,
 887                                                 connman_bool_t disconnected)
 888 {
 889         DBG("device %p disconnected %d", device, disconnected);
 890
 891         if (device->disconnected == disconnected)
 892                 return -EALREADY;
 893
 894         device->disconnected = disconnected;
 895
 896         if (disconnected == TRUE)
 897                 force_scan_trigger(device);
 898
 899         return 0;
 900 }
 901
 902 /**
 903  * connman_device_get_disconnected:
 904  * @device: device structure
 905  *
 906  * Get device disconnected state
 907  */
 908 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 909 {
 910         return device->disconnected;
 911 }
 912
 913 /**
 914  * connman_device_set_string:
 915  * @device: device structure
 916  * @key: unique identifier
 917  * @value: string value
 918  *
 919  * Set string value for specific key
 920  */
 921 int connman_device_set_string(struct connman_device *device,
 922                                         const char *key, const char *value)
 923 {
 924         DBG("device %p key %s value %s", device, key, value);
 925
 926         if (g_str_equal(key, "Address") == TRUE) {
 927                 g_free(device->address);
 928                 device->address = g_strdup(value);
 929         } else if (g_str_equal(key, "Name") == TRUE) {
 930                 g_free(device->name);
 931                 device->name = g_strdup(value);
 932         } else if (g_str_equal(key, "Node") == TRUE) {
 933                 g_free(device->node);
 934                 device->node = g_strdup(value);
 935         }
 936
 937         return connman_element_set_string(&device->element, key, value);
 938 }
 939
 940 /**
 941  * connman_device_get_string:
 942  * @device: device structure
 943  * @key: unique identifier
 944  *
 945  * Get string value for specific key
 946  */
 947 const char *connman_device_get_string(struct connman_device *device,
 948                                                         const char *key)
 949 {
 950         DBG("device %p key %s", device, key);
 951
 952         if (g_str_equal(key, "Address") == TRUE)
 953                 return device->address;
 954         else if (g_str_equal(key, "Name") == TRUE)
 955                 return device->name;
 956         else if (g_str_equal(key, "Node") == TRUE)
 957                 return device->node;
 958         else if (g_str_equal(key, "Interface") == TRUE)
 959                 return device->interface;
 960
 961         return connman_element_get_string(&device->element, key);
 962 }
 963
 964 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 965 {
 966         struct connman_device *device = element->device;
 967         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 968         connman_bool_t powered;
 969
 970         DBG("element %p name %s", element, element->name);
 971
 972         if (device == NULL)
 973                 return;
 974
 975         device->offlinemode = offlinemode;
 976
 977         if (device->blocked == TRUE)
 978                 return;
 979
 980         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 981
 982         if (device->powered == powered)
 983                 return;
 984
 985         if (device->powered_persistent == FALSE)
 986                 powered = FALSE;
 987
 988         set_powered(device, powered);
 989 }
 990
 991 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 992 {
 993         DBG("offlinmode %d", offlinemode);
 994
 995         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 996                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 997
 998         __connman_notifier_offlinemode(offlinemode);
 999
1000         return 0;
1001 }
1002
1003 void __connman_device_increase_connections(struct connman_device *device)
1004 {
1005         if (device == NULL)
1006                 return;
1007
1008         device->connections++;
1009 }
1010
1011 void __connman_device_decrease_connections(struct connman_device *device)
1012 {
1013         if (device == NULL)
1014                 return;
1015
1016         device->connections--;
1017 }
1018
1019 /**
1020  * connman_device_add_network:
1021  * @device: device structure
1022  * @network: network structure
1023  *
1024  * Add new network to the device
1025  */
1026 int connman_device_add_network(struct connman_device *device,
1027                                         struct connman_network *network)
1028 {
1029         const char *identifier = connman_network_get_identifier(network);
1030         int err;
1031
1032         DBG("device %p network %p", device, network);
1033
1034         if (identifier == NULL)
1035                 return -EINVAL;
1036
1037         __connman_network_set_device(network, device);
1038
1039         err = connman_element_register((struct connman_element *) network,
1040                                                         &device->element);
1041         if (err < 0) {
1042                 __connman_network_set_device(network, NULL);
1043                 return err;
1044         }
1045
1046         g_hash_table_insert(device->networks, g_strdup(identifier),
1047                                                                 network);
1048
1049         return 0;
1050 }
1051
1052 /**
1053  * connman_device_get_network:
1054  * @device: device structure
1055  * @identifier: network identifier
1056  *
1057  * Get network for given identifier
1058  */
1059 struct connman_network *connman_device_get_network(struct connman_device *device,
1060                                                         const char *identifier)
1061 {
1062         DBG("device %p identifier %s", device, identifier);
1063
1064         return g_hash_table_lookup(device->networks, identifier);
1065 }
1066
1067 /**
1068  * connman_device_remove_network:
1069  * @device: device structure
1070  * @identifier: network identifier
1071  *
1072  * Remove network for given identifier
1073  */
1074 int connman_device_remove_network(struct connman_device *device,
1075                                                         const char *identifier)
1076 {
1077         DBG("device %p identifier %s", device, identifier);
1078
1079         g_hash_table_remove(device->networks, identifier);
1080
1081         return 0;
1082 }
1083
1084 void connman_device_remove_all_networks(struct connman_device *device)
1085 {
1086         g_hash_table_remove_all(device->networks);
1087 }
1088
1089 void __connman_device_set_network(struct connman_device *device,
1090                                         struct connman_network *network)
1091 {
1092         const char *name;
1093
1094         if (device == NULL)
1095                 return;
1096
1097         if (device->network == network)
1098                 return;
1099
1100         if (device->network != NULL)
1101                 connman_network_unref(device->network);
1102
1103         if (network != NULL) {
1104                 name = connman_network_get_string(network,
1105                                                 CONNMAN_PROPERTY_ID_NAME);
1106                 g_free(device->last_network);
1107                 device->last_network = g_strdup(name);
1108
1109                 device->network = connman_network_ref(network);
1110         } else {
1111                 g_free(device->last_network);
1112                 device->last_network = NULL;
1113
1114                 device->network = NULL;
1115         }
1116 }
1117
1118 void __connman_device_set_reconnect(struct connman_device *device,
1119                                                 connman_bool_t reconnect)
1120 {
1121         device->reconnect = reconnect;
1122 }
1123
1124 connman_bool_t  __connman_device_get_reconnect(
1125                                 struct connman_device *device)
1126 {
1127         return device->reconnect;
1128 }
1129
1130 /**
1131  * connman_device_register:
1132  * @device: device structure
1133  *
1134  * Register device with the system
1135  */
1136 int connman_device_register(struct connman_device *device)
1137 {
1138         __connman_storage_load_device(device);
1139
1140         device->offlinemode = __connman_profile_get_offlinemode();
1141
1142         return connman_element_register(&device->element, NULL);
1143 }
1144
1145 /**
1146  * connman_device_unregister:
1147  * @device: device structure
1148  *
1149  * Unregister device with the system
1150  */
1151 void connman_device_unregister(struct connman_device *device)
1152 {
1153         __connman_storage_save_device(device);
1154
1155         connman_element_unregister(&device->element);
1156 }
1157
1158 /**
1159  * connman_device_get_data:
1160  * @device: device structure
1161  *
1162  * Get private device data pointer
1163  */
1164 void *connman_device_get_data(struct connman_device *device)
1165 {
1166         return device->driver_data;
1167 }
1168
1169 /**
1170  * connman_device_set_data:
1171  * @device: device structure
1172  * @data: data pointer
1173  *
1174  * Set private device data pointer
1175  */
1176 void connman_device_set_data(struct connman_device *device, void *data)
1177 {
1178         device->driver_data = data;
1179 }
1180
1181 static gboolean match_driver(struct connman_device *device,
1182                                         struct connman_device_driver *driver)
1183 {
1184         if (device->type == driver->type ||
1185                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1186                 return TRUE;
1187
1188         return FALSE;
1189 }
1190
1191 static int device_probe(struct connman_element *element)
1192 {
1193         struct connman_device *device = element->device;
1194         GSList *list;
1195
1196         DBG("element %p name %s", element, element->name);
1197
1198         if (device == NULL)
1199                 return -ENODEV;
1200
1201         if (device->driver != NULL)
1202                 return -EALREADY;
1203
1204         for (list = driver_list; list; list = list->next) {
1205                 struct connman_device_driver *driver = list->data;
1206
1207                 if (match_driver(device, driver) == FALSE)
1208                         continue;
1209
1210                 DBG("driver %p name %s", driver, driver->name);
1211
1212                 if (driver->probe(device) == 0) {
1213                         device->driver = driver;
1214                         break;
1215                 }
1216         }
1217
1218         if (device->driver == NULL)
1219                 return -ENODEV;
1220
1221         return setup_device(device);
1222 }
1223
1224 static void device_remove(struct connman_element *element)
1225 {
1226         struct connman_device *device = element->device;
1227
1228         DBG("element %p name %s", element, element->name);
1229
1230         if (device == NULL)
1231                 return;
1232
1233         if (device->driver == NULL)
1234                 return;
1235
1236         remove_device(device);
1237 }
1238
1239 static struct connman_driver device_driver = {
1240         .name           = "device",
1241         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1242         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1243         .probe          = device_probe,
1244         .remove         = device_remove,
1245 };
1246
1247 static int device_load(struct connman_device *device)
1248 {
1249         const char *ident = __connman_profile_active_ident();
1250         GKeyFile *keyfile;
1251         GError *error = NULL;
1252         gchar *identifier;
1253         connman_bool_t powered;
1254         int val;
1255
1256         DBG("device %p", device);
1257
1258         keyfile = __connman_storage_open_profile(ident);
1259         if (keyfile == NULL)
1260                 return 0;
1261
1262         identifier = g_strdup_printf("device_%s", device->element.name);
1263         if (identifier == NULL)
1264                 goto done;
1265
1266         powered = g_key_file_get_boolean(keyfile, identifier,
1267                                                 "Powered", &error);
1268         if (error == NULL)
1269                 device->powered_persistent = powered;
1270         g_clear_error(&error);
1271
1272         val = g_key_file_get_integer(keyfile, identifier,
1273                                                 "ScanInterval", &error);
1274         if (error == NULL)
1275                 device->scan_interval = val;
1276         g_clear_error(&error);
1277
1278 done:
1279         g_free(identifier);
1280
1281         __connman_storage_close_profile(ident, keyfile, FALSE);
1282
1283         return 0;
1284 }
1285
1286 static int device_save(struct connman_device *device)
1287 {
1288         const char *ident = __connman_profile_active_ident();
1289         GKeyFile *keyfile;
1290         gchar *identifier;
1291
1292         DBG("device %p", device);
1293
1294         keyfile = __connman_storage_open_profile(ident);
1295         if (keyfile == NULL)
1296                 return 0;
1297
1298         identifier = g_strdup_printf("device_%s", device->element.name);
1299         if (identifier == NULL)
1300                 goto done;
1301
1302         g_key_file_set_boolean(keyfile, identifier,
1303                                         "Powered", device->powered_persistent);
1304
1305         g_key_file_set_integer(keyfile, identifier,
1306                                         "ScanInterval", device->scan_interval);
1307
1308 done:
1309         g_free(identifier);
1310
1311         __connman_storage_close_profile(ident, keyfile, TRUE);
1312
1313         return 0;
1314 }
1315
1316 static struct connman_storage device_storage = {
1317         .name           = "device",
1318         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1319         .device_load    = device_load,
1320         .device_save    = device_save,
1321 };
1322
1323 int __connman_device_init(void)
1324 {
1325         DBG("");
1326
1327         connection = connman_dbus_get_connection();
1328
1329         if (connman_storage_register(&device_storage) < 0)
1330                 connman_error("Failed to register device storage");
1331
1332         return connman_driver_register(&device_driver);
1333 }
1334
1335 void __connman_device_cleanup(void)
1336 {
1337         DBG("");
1338
1339         connman_driver_unregister(&device_driver);
1340
1341         connman_storage_unregister(&device_storage);
1342
1343         dbus_connection_unref(connection);
1344 }