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