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