src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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         int 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         char *name;
  51         char *node;
  52         char *address;
  53         char *interface;
  54         char *ident;
  55         char *path;
  56         char *devname;
  57         int phyindex;
  58         int index;
  59         guint pending_timeout;
  60
  61         struct connman_device_driver *driver;
  62         void *driver_data;
  63
  64         char *last_network;
  65         struct connman_network *network;
  66         GHashTable *networks;
  67 };
  68
  69 static void clear_pending_trigger(struct connman_device *device)
  70 {
  71         if (device->pending_timeout > 0) {
  72                 g_source_remove(device->pending_timeout);
  73                 device->pending_timeout = 0;
  74         }
  75 }
  76
  77 static const char *type2description(enum connman_device_type type)
  78 {
  79         switch (type) {
  80         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  81         case CONNMAN_DEVICE_TYPE_VENDOR:
  82                 break;
  83         case CONNMAN_DEVICE_TYPE_ETHERNET:
  84                 return "Ethernet";
  85         case CONNMAN_DEVICE_TYPE_WIFI:
  86                 return "Wireless";
  87         case CONNMAN_DEVICE_TYPE_WIMAX:
  88                 return "WiMAX";
  89         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  90                 return "Bluetooth";
  91         case CONNMAN_DEVICE_TYPE_GPS:
  92                 return "GPS";
  93         case CONNMAN_DEVICE_TYPE_CELLULAR:
  94                 return "Cellular";
  95         case CONNMAN_DEVICE_TYPE_GADGET:
  96                 return "Gadget";
  97
  98         }
  99
 100         return NULL;
 101 }
 102
 103 static const char *type2string(enum connman_device_type type)
 104 {
 105         switch (type) {
 106         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 107         case CONNMAN_DEVICE_TYPE_VENDOR:
 108                 break;
 109         case CONNMAN_DEVICE_TYPE_ETHERNET:
 110                 return "ethernet";
 111         case CONNMAN_DEVICE_TYPE_WIFI:
 112                 return "wifi";
 113         case CONNMAN_DEVICE_TYPE_WIMAX:
 114                 return "wimax";
 115         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 116                 return "bluetooth";
 117         case CONNMAN_DEVICE_TYPE_GPS:
 118                 return "gps";
 119         case CONNMAN_DEVICE_TYPE_CELLULAR:
 120                 return "cellular";
 121         case CONNMAN_DEVICE_TYPE_GADGET:
 122                 return "gadget";
 123
 124         }
 125
 126         return NULL;
 127 }
 128
 129 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 130 {
 131         enum connman_device_type type = connman_device_get_type(device);
 132
 133         switch (type) {
 134         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 135         case CONNMAN_DEVICE_TYPE_VENDOR:
 136         case CONNMAN_DEVICE_TYPE_GPS:
 137                 break;
 138         case CONNMAN_DEVICE_TYPE_ETHERNET:
 139                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 140         case CONNMAN_DEVICE_TYPE_WIFI:
 141                 return CONNMAN_SERVICE_TYPE_WIFI;
 142         case CONNMAN_DEVICE_TYPE_WIMAX:
 143                 return CONNMAN_SERVICE_TYPE_WIMAX;
 144         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 145                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 146         case CONNMAN_DEVICE_TYPE_CELLULAR:
 147                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 148         case CONNMAN_DEVICE_TYPE_GADGET:
 149                 return CONNMAN_SERVICE_TYPE_GADGET;
 150
 151         }
 152
 153         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 154 }
 155
 156 static gboolean device_pending_reset(gpointer user_data)
 157 {
 158         struct connman_device *device = user_data;
 159
 160         DBG("device %p", device);
 161
 162         /* Power request timedout, reset power pending state. */
 163         device->pending_timeout = 0;
 164         device->powered_pending = PENDING_NONE;
 165
 166         return FALSE;
 167 }
 168
 169 int __connman_device_enable(struct connman_device *device)
 170 {
 171         int err;
 172
 173         DBG("device %p", device);
 174
 175         if (!device->driver || !device->driver->enable)
 176                 return -EOPNOTSUPP;
 177
 178         /* There is an ongoing power disable request. */
 179         if (device->powered_pending == PENDING_DISABLE)
 180                 return -EBUSY;
 181
 182         if (device->powered_pending == PENDING_ENABLE)
 183                 return -EALREADY;
 184
 185         if (device->powered_pending == PENDING_NONE && device->powered == TRUE)
 186                 return -EALREADY;
 187
 188         device->powered_pending = PENDING_ENABLE;
 189
 190         err = device->driver->enable(device);
 191         /*
 192          * device gets enabled right away.
 193          * Invoke the callback
 194          */
 195         if (err == 0) {
 196                 connman_device_set_powered(device, TRUE);
 197                 goto done;
 198         }
 199
 200         if (err == -EALREADY) {
 201                 /* If device is already powered, but connman is not updated */
 202                 connman_device_set_powered(device, TRUE);
 203                 goto done;
 204         }
 205         /*
 206          * if err == -EINPROGRESS, then the DBus call to the respective daemon
 207          * was successful. We set a 4 sec timeout so if the daemon never
 208          * returns a reply, we would reset the pending request.
 209          */
 210         if (err == -EINPROGRESS)
 211                 device->pending_timeout = g_timeout_add_seconds(4,
 212                                         device_pending_reset, device);
 213 done:
 214         return err;
 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         /* Ongoing power enable request */
 227         if (device->powered_pending == PENDING_ENABLE)
 228                 return -EBUSY;
 229
 230         if (device->powered_pending == PENDING_DISABLE)
 231                 return -EALREADY;
 232
 233         if (device->powered_pending == PENDING_NONE && device->powered == FALSE)
 234                 return -EALREADY;
 235
 236         device->powered_pending = PENDING_DISABLE;
 237         device->reconnect = FALSE;
 238
 239         if (device->network) {
 240                 struct connman_service *service =
 241                         __connman_service_lookup_from_network(device->network);
 242
 243                 if (service != NULL)
 244                         __connman_service_disconnect(service);
 245                 else
 246                         connman_network_set_connected(device->network, FALSE);
 247         }
 248
 249         err = device->driver->disable(device);
 250         if (err == 0) {
 251                 connman_device_set_powered(device, FALSE);
 252                 goto done;
 253         }
 254
 255         if (err == -EALREADY) {
 256                 connman_device_set_powered(device, FALSE);
 257                 goto done;
 258         }
 259
 260         if (err == -EINPROGRESS)
 261                 device->pending_timeout = g_timeout_add_seconds(4,
 262                                         device_pending_reset, device);
 263 done:
 264         return err;
 265 }
 266
 267 static void probe_driver(struct connman_device_driver *driver)
 268 {
 269         GSList *list;
 270
 271         DBG("driver %p name %s", driver, driver->name);
 272
 273         for (list = device_list; list != NULL; list = list->next) {
 274                 struct connman_device *device = list->data;
 275
 276                 if (device->driver != NULL)
 277                         continue;
 278
 279                 if (driver->type != device->type)
 280                         continue;
 281
 282                 if (driver->probe(device) < 0)
 283                         continue;
 284
 285                 device->driver = driver;
 286
 287                 __connman_technology_add_device(device);
 288         }
 289 }
 290
 291 static void remove_device(struct connman_device *device)
 292 {
 293         DBG("device %p", device);
 294
 295         __connman_device_disable(device);
 296
 297         __connman_technology_remove_device(device);
 298
 299         if (device->driver->remove)
 300                 device->driver->remove(device);
 301
 302         device->driver = NULL;
 303 }
 304
 305 static void remove_driver(struct connman_device_driver *driver)
 306 {
 307         GSList *list;
 308
 309         DBG("driver %p name %s", driver, driver->name);
 310
 311         for (list = device_list; list != NULL; list = list->next) {
 312                 struct connman_device *device = list->data;
 313
 314                 if (device->driver == driver)
 315                         remove_device(device);
 316         }
 317 }
 318
 319 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 320 {
 321         if (device == NULL || device->driver == NULL)
 322                 return FALSE;
 323
 324         return TRUE;
 325 }
 326
 327 static GSList *driver_list = NULL;
 328
 329 static gint compare_priority(gconstpointer a, gconstpointer b)
 330 {
 331         const struct connman_device_driver *driver1 = a;
 332         const struct connman_device_driver *driver2 = b;
 333
 334         return driver2->priority - driver1->priority;
 335 }
 336
 337 /**
 338  * connman_device_driver_register:
 339  * @driver: device driver definition
 340  *
 341  * Register a new device driver
 342  *
 343  * Returns: %0 on success
 344  */
 345 int connman_device_driver_register(struct connman_device_driver *driver)
 346 {
 347         DBG("driver %p name %s", driver, driver->name);
 348
 349         driver_list = g_slist_insert_sorted(driver_list, driver,
 350                                                         compare_priority);
 351         probe_driver(driver);
 352
 353         return 0;
 354 }
 355
 356 /**
 357  * connman_device_driver_unregister:
 358  * @driver: device driver definition
 359  *
 360  * Remove a previously registered device driver
 361  */
 362 void connman_device_driver_unregister(struct connman_device_driver *driver)
 363 {
 364         DBG("driver %p name %s", driver, driver->name);
 365
 366         driver_list = g_slist_remove(driver_list, driver);
 367
 368         remove_driver(driver);
 369 }
 370
 371 static void free_network(gpointer data)
 372 {
 373         struct connman_network *network = data;
 374
 375         DBG("network %p", network);
 376
 377         __connman_network_set_device(network, NULL);
 378
 379         connman_network_unref(network);
 380 }
 381
 382 static void device_destruct(struct connman_device *device)
 383 {
 384         DBG("device %p name %s", device, device->name);
 385
 386         clear_pending_trigger(device);
 387
 388         g_free(device->ident);
 389         g_free(device->node);
 390         g_free(device->name);
 391         g_free(device->address);
 392         g_free(device->interface);
 393         g_free(device->path);
 394         g_free(device->devname);
 395
 396         g_free(device->last_network);
 397
 398         g_hash_table_destroy(device->networks);
 399         device->networks = NULL;
 400
 401         g_free(device);
 402 }
 403
 404 /**
 405  * connman_device_create:
 406  * @node: device node name (for example an address)
 407  * @type: device type
 408  *
 409  * Allocate a new device of given #type and assign the #node name to it.
 410  *
 411  * Returns: a newly-allocated #connman_device structure
 412  */
 413 struct connman_device *connman_device_create(const char *node,
 414                                                 enum connman_device_type type)
 415 {
 416         struct connman_device *device;
 417
 418         DBG("node %s type %d", node, type);
 419
 420         device = g_try_new0(struct connman_device, 1);
 421         if (device == NULL)
 422                 return NULL;
 423
 424         DBG("device %p", device);
 425
 426         device->refcount = 1;
 427
 428         device->type = type;
 429         device->name = g_strdup(type2description(device->type));
 430
 431         device->phyindex = -1;
 432
 433         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 434                                                 g_free, free_network);
 435
 436         device_list = g_slist_append(device_list, device);
 437
 438         return device;
 439 }
 440
 441 /**
 442  * connman_device_ref:
 443  * @device: device structure
 444  *
 445  * Increase reference counter of device
 446  */
 447 struct connman_device *connman_device_ref_debug(struct connman_device *device,
 448                                 const char *file, int line, const char *caller)
 449 {
 450         DBG("%p ref %d by %s:%d:%s()", device, device->refcount + 1,
 451                 file, line, caller);
 452
 453         __sync_fetch_and_add(&device->refcount, 1);
 454
 455         return device;
 456 }
 457
 458 /**
 459  * connman_device_unref:
 460  * @device: device structure
 461  *
 462  * Decrease reference counter of device
 463  */
 464 void connman_device_unref_debug(struct connman_device *device,
 465                                 const char *file, int line, const char *caller)
 466 {
 467         DBG("%p ref %d by %s:%d:%s()", device, device->refcount - 1,
 468                 file, line, caller);
 469
 470         if (__sync_fetch_and_sub(&device->refcount, 1) != 1)
 471                 return;
 472
 473         if (device->driver) {
 474                 device->driver->remove(device);
 475                 device->driver = NULL;
 476         }
 477
 478         device_list = g_slist_remove(device_list, device);
 479
 480         device_destruct(device);
 481 }
 482
 483 const char *__connman_device_get_type(struct connman_device *device)
 484 {
 485         return type2string(device->type);
 486 }
 487
 488 /**
 489  * connman_device_get_type:
 490  * @device: device structure
 491  *
 492  * Get type of device
 493  */
 494 enum connman_device_type connman_device_get_type(struct connman_device *device)
 495 {
 496         return device->type;
 497 }
 498
 499 /**
 500  * connman_device_set_index:
 501  * @device: device structure
 502  * @index: index number
 503  *
 504  * Set index number of device
 505  */
 506 void connman_device_set_index(struct connman_device *device, int index)
 507 {
 508         device->index = index;
 509 }
 510
 511 /**
 512  * connman_device_get_index:
 513  * @device: device structure
 514  *
 515  * Get index number of device
 516  */
 517 int connman_device_get_index(struct connman_device *device)
 518 {
 519         return device->index;
 520 }
 521
 522 int __connman_device_get_phyindex(struct connman_device *device)
 523 {
 524         return device->phyindex;
 525 }
 526
 527 void __connman_device_set_phyindex(struct connman_device *device,
 528                                                         int phyindex)
 529 {
 530         device->phyindex = phyindex;
 531 }
 532
 533 /**
 534  * connman_device_set_interface:
 535  * @device: device structure
 536  * @interface: interface name
 537  *
 538  * Set interface name of device
 539  */
 540 void connman_device_set_interface(struct connman_device *device,
 541                                                 const char *interface)
 542 {
 543         g_free(device->devname);
 544         device->devname = g_strdup(interface);
 545
 546         g_free(device->interface);
 547         device->interface = g_strdup(interface);
 548
 549         if (device->name == NULL) {
 550                 const char *str = type2description(device->type);
 551                 if (str != NULL && device->interface != NULL)
 552                         device->name = g_strdup_printf("%s (%s)", str,
 553                                                         device->interface);
 554         }
 555 }
 556
 557 /**
 558  * connman_device_set_ident:
 559  * @device: device structure
 560  * @ident: unique identifier
 561  *
 562  * Set unique identifier of device
 563  */
 564 void connman_device_set_ident(struct connman_device *device,
 565                                                         const char *ident)
 566 {
 567         g_free(device->ident);
 568         device->ident = g_strdup(ident);
 569 }
 570
 571 const char *connman_device_get_ident(struct connman_device *device)
 572 {
 573         return device->ident;
 574 }
 575
 576 /**
 577  * connman_device_set_powered:
 578  * @device: device structure
 579  * @powered: powered state
 580  *
 581  * Change power state of device
 582  */
 583 int connman_device_set_powered(struct connman_device *device,
 584                                                 connman_bool_t powered)
 585 {
 586         enum connman_service_type type;
 587
 588         DBG("driver %p powered %d", device, powered);
 589
 590         if (device->powered == powered)
 591                 return -EALREADY;
 592
 593         clear_pending_trigger(device);
 594
 595         device->powered_pending = PENDING_NONE;
 596
 597         device->powered = powered;
 598
 599         type = __connman_device_get_service_type(device);
 600
 601         if (device->powered == TRUE)
 602                 __connman_technology_enabled(type);
 603         else
 604                 __connman_technology_disabled(type);
 605
 606         if (powered == FALSE)
 607                 return 0;
 608
 609         connman_device_set_disconnected(device, FALSE);
 610         device->scanning = FALSE;
 611
 612         if (device->driver && device->driver->scan_fast)
 613                 device->driver->scan_fast(device);
 614         else if (device->driver && device->driver->scan)
 615                 device->driver->scan(device);
 616
 617         return 0;
 618 }
 619
 620 static int device_scan(struct connman_device *device)
 621 {
 622         if (!device->driver || !device->driver->scan)
 623                 return -EOPNOTSUPP;
 624
 625         if (device->powered == FALSE)
 626                 return -ENOLINK;
 627
 628         return device->driver->scan(device);
 629 }
 630
 631 int __connman_device_disconnect(struct connman_device *device)
 632 {
 633         GHashTableIter iter;
 634         gpointer key, value;
 635
 636         DBG("device %p", device);
 637
 638         connman_device_set_disconnected(device, TRUE);
 639
 640         g_hash_table_iter_init(&iter, device->networks);
 641
 642         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 643                 struct connman_network *network = value;
 644
 645                 if (connman_network_get_connecting(network) == TRUE) {
 646                         /*
 647                          * Skip network in the process of connecting.
 648                          * This is a workaround for WiFi networks serviced
 649                          * by the supplicant plugin that hold a reference
 650                          * to the network.  If we disconnect the network
 651                          * here then the referenced object will not be
 652                          * registered and usage (like launching DHCP client)
 653                          * will fail.  There is nothing to be gained by
 654                          * removing the network here anyway.
 655                          */
 656                         connman_warn("Skipping disconnect of %s, network is connecting.",
 657                                 connman_network_get_identifier(network));
 658                         continue;
 659                 }
 660
 661                 __connman_network_disconnect(network);
 662         }
 663
 664         return 0;
 665 }
 666
 667 static void mark_network_available(gpointer key, gpointer value,
 668                                                         gpointer user_data)
 669 {
 670         struct connman_network *network = value;
 671
 672         connman_network_set_available(network, TRUE);
 673 }
 674
 675 static void mark_network_unavailable(gpointer key, gpointer value,
 676                                                         gpointer user_data)
 677 {
 678         struct connman_network *network = value;
 679
 680         if (connman_network_get_connected(network) == TRUE)
 681                 return;
 682
 683         connman_network_set_available(network, FALSE);
 684 }
 685
 686 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 687                                                         gpointer user_data)
 688 {
 689         struct connman_network *network = value;
 690
 691         if (connman_network_get_connected(network) == TRUE)
 692                 return FALSE;
 693
 694         if (connman_network_get_available(network) == TRUE)
 695                 return FALSE;
 696
 697         return TRUE;
 698 }
 699
 700 void __connman_device_cleanup_networks(struct connman_device *device)
 701 {
 702         g_hash_table_foreach_remove(device->networks,
 703                                         remove_unavailable_network, NULL);
 704 }
 705
 706 connman_bool_t connman_device_get_scanning(struct connman_device *device)
 707 {
 708         return device->scanning;
 709 }
 710
 711 void connman_device_reset_scanning(struct connman_device *device)
 712 {
 713         device->scanning = FALSE;
 714
 715         g_hash_table_foreach(device->networks,
 716                                 mark_network_available, NULL);
 717 }
 718
 719 /**
 720  * connman_device_set_scanning:
 721  * @device: device structure
 722  * @scanning: scanning state
 723  *
 724  * Change scanning state of device
 725  */
 726 int connman_device_set_scanning(struct connman_device *device,
 727                                                 connman_bool_t scanning)
 728 {
 729         DBG("device %p scanning %d", device, scanning);
 730
 731         if (!device->driver || !device->driver->scan)
 732                 return -EINVAL;
 733
 734         if (device->scanning == scanning)
 735                 return -EALREADY;
 736
 737         device->scanning = scanning;
 738
 739         if (scanning == TRUE) {
 740                 __connman_technology_scan_started(device);
 741
 742                 g_hash_table_foreach(device->networks,
 743                                         mark_network_unavailable, NULL);
 744
 745                 return 0;
 746         }
 747
 748         __connman_device_cleanup_networks(device);
 749
 750         __connman_technology_scan_stopped(device);
 751
 752         __connman_service_auto_connect();
 753
 754         return 0;
 755 }
 756
 757 /**
 758  * connman_device_set_disconnected:
 759  * @device: device structure
 760  * @disconnected: disconnected state
 761  *
 762  * Change disconnected state of device (only for device with networks)
 763  */
 764 int connman_device_set_disconnected(struct connman_device *device,
 765                                                 connman_bool_t disconnected)
 766 {
 767         DBG("device %p disconnected %d", device, disconnected);
 768
 769         if (device->disconnected == disconnected)
 770                 return -EALREADY;
 771
 772         device->disconnected = disconnected;
 773
 774         return 0;
 775 }
 776
 777 /**
 778  * connman_device_get_disconnected:
 779  * @device: device structure
 780  *
 781  * Get device disconnected state
 782  */
 783 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 784 {
 785         return device->disconnected;
 786 }
 787
 788 /**
 789  * connman_device_set_string:
 790  * @device: device structure
 791  * @key: unique identifier
 792  * @value: string value
 793  *
 794  * Set string value for specific key
 795  */
 796 int connman_device_set_string(struct connman_device *device,
 797                                         const char *key, const char *value)
 798 {
 799         DBG("device %p key %s value %s", device, key, value);
 800
 801         if (g_str_equal(key, "Address") == TRUE) {
 802                 g_free(device->address);
 803                 device->address = g_strdup(value);
 804         } else if (g_str_equal(key, "Name") == TRUE) {
 805                 g_free(device->name);
 806                 device->name = g_strdup(value);
 807         } else if (g_str_equal(key, "Node") == TRUE) {
 808                 g_free(device->node);
 809                 device->node = g_strdup(value);
 810         } else if (g_str_equal(key, "Path") == TRUE) {
 811                 g_free(device->path);
 812                 device->path = g_strdup(value);
 813         } else {
 814                 return -EINVAL;
 815         }
 816
 817         return 0;
 818 }
 819
 820 /**
 821  * connman_device_get_string:
 822  * @device: device structure
 823  * @key: unique identifier
 824  *
 825  * Get string value for specific key
 826  */
 827 const char *connman_device_get_string(struct connman_device *device,
 828                                                         const char *key)
 829 {
 830         DBG("device %p key %s", device, key);
 831
 832         if (g_str_equal(key, "Address") == TRUE)
 833                 return device->address;
 834         else if (g_str_equal(key, "Name") == TRUE)
 835                 return device->name;
 836         else if (g_str_equal(key, "Node") == TRUE)
 837                 return device->node;
 838         else if (g_str_equal(key, "Interface") == TRUE)
 839                 return device->interface;
 840         else if (g_str_equal(key, "Path") == TRUE)
 841                 return device->path;
 842
 843         return NULL;
 844 }
 845
 846 /**
 847  * connman_device_add_network:
 848  * @device: device structure
 849  * @network: network structure
 850  *
 851  * Add new network to the device
 852  */
 853 int connman_device_add_network(struct connman_device *device,
 854                                         struct connman_network *network)
 855 {
 856         const char *identifier = connman_network_get_identifier(network);
 857
 858         DBG("device %p network %p", device, network);
 859
 860         if (identifier == NULL)
 861                 return -EINVAL;
 862
 863         connman_network_ref(network);
 864
 865         __connman_network_set_device(network, device);
 866
 867         g_hash_table_replace(device->networks, g_strdup(identifier),
 868                                                                 network);
 869
 870         return 0;
 871 }
 872
 873 /**
 874  * connman_device_get_network:
 875  * @device: device structure
 876  * @identifier: network identifier
 877  *
 878  * Get network for given identifier
 879  */
 880 struct connman_network *connman_device_get_network(struct connman_device *device,
 881                                                         const char *identifier)
 882 {
 883         DBG("device %p identifier %s", device, identifier);
 884
 885         return g_hash_table_lookup(device->networks, identifier);
 886 }
 887
 888 /**
 889  * connman_device_remove_network:
 890  * @device: device structure
 891  * @identifier: network identifier
 892  *
 893  * Remove network for given identifier
 894  */
 895 int connman_device_remove_network(struct connman_device *device,
 896                                                 struct connman_network *network)
 897 {
 898         const char *identifier;
 899
 900         DBG("device %p network %p", device, network);
 901
 902         if (network == NULL)
 903                 return 0;
 904
 905         identifier = connman_network_get_identifier(network);
 906         g_hash_table_remove(device->networks, identifier);
 907
 908         return 0;
 909 }
 910
 911 void connman_device_remove_all_networks(struct connman_device *device)
 912 {
 913         g_hash_table_remove_all(device->networks);
 914 }
 915
 916 void __connman_device_set_network(struct connman_device *device,
 917                                         struct connman_network *network)
 918 {
 919         const char *name;
 920
 921         if (device == NULL)
 922                 return;
 923
 924         if (device->network == network)
 925                 return;
 926
 927         if (network != NULL) {
 928                 name = connman_network_get_string(network, "Name");
 929                 g_free(device->last_network);
 930                 device->last_network = g_strdup(name);
 931
 932                 device->network = network;
 933         } else {
 934                 g_free(device->last_network);
 935                 device->last_network = NULL;
 936
 937                 device->network = NULL;
 938         }
 939 }
 940
 941 void __connman_device_set_reconnect(struct connman_device *device,
 942                                                 connman_bool_t reconnect)
 943 {
 944         device->reconnect = reconnect;
 945 }
 946
 947 connman_bool_t  __connman_device_get_reconnect(
 948                                 struct connman_device *device)
 949 {
 950         return device->reconnect;
 951 }
 952
 953 static gboolean match_driver(struct connman_device *device,
 954                                         struct connman_device_driver *driver)
 955 {
 956         if (device->type == driver->type ||
 957                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 958                 return TRUE;
 959
 960         return FALSE;
 961 }
 962
 963 /**
 964  * connman_device_register:
 965  * @device: device structure
 966  *
 967  * Register device with the system
 968  */
 969 int connman_device_register(struct connman_device *device)
 970 {
 971         GSList *list;
 972
 973         DBG("device %p name %s", device, device->name);
 974
 975         if (device->driver != NULL)
 976                 return -EALREADY;
 977
 978         for (list = driver_list; list; list = list->next) {
 979                 struct connman_device_driver *driver = list->data;
 980
 981                 if (match_driver(device, driver) == FALSE)
 982                         continue;
 983
 984                 DBG("driver %p name %s", driver, driver->name);
 985
 986                 if (driver->probe(device) == 0) {
 987                         device->driver = driver;
 988                         break;
 989                 }
 990         }
 991
 992         if (device->driver == NULL)
 993                 return 0;
 994
 995         return __connman_technology_add_device(device);
 996 }
 997
 998 /**
 999  * connman_device_unregister:
1000  * @device: device structure
1001  *
1002  * Unregister device with the system
1003  */
1004 void connman_device_unregister(struct connman_device *device)
1005 {
1006         DBG("device %p name %s", device, device->name);
1007
1008         if (device->driver == NULL)
1009                 return;
1010
1011         remove_device(device);
1012 }
1013
1014 /**
1015  * connman_device_get_data:
1016  * @device: device structure
1017  *
1018  * Get private device data pointer
1019  */
1020 void *connman_device_get_data(struct connman_device *device)
1021 {
1022         return device->driver_data;
1023 }
1024
1025 /**
1026  * connman_device_set_data:
1027  * @device: device structure
1028  * @data: data pointer
1029  *
1030  * Set private device data pointer
1031  */
1032 void connman_device_set_data(struct connman_device *device, void *data)
1033 {
1034         device->driver_data = data;
1035 }
1036
1037 struct connman_device *__connman_device_find_device(
1038                                 enum connman_service_type type)
1039 {
1040         GSList *list;
1041
1042         for (list = device_list; list != NULL; list = list->next) {
1043                 struct connman_device *device = list->data;
1044                 enum connman_service_type service_type =
1045                         __connman_device_get_service_type(device);
1046
1047                 if (service_type != type)
1048                         continue;
1049
1050                 return device;
1051         }
1052
1053         return NULL;
1054 }
1055
1056 int __connman_device_request_scan(enum connman_service_type type)
1057 {
1058         connman_bool_t success = FALSE;
1059         int last_err = -ENOSYS;
1060         GSList *list;
1061         int err;
1062
1063         switch (type) {
1064         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1065         case CONNMAN_SERVICE_TYPE_SYSTEM:
1066         case CONNMAN_SERVICE_TYPE_ETHERNET:
1067         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1068         case CONNMAN_SERVICE_TYPE_CELLULAR:
1069         case CONNMAN_SERVICE_TYPE_GPS:
1070         case CONNMAN_SERVICE_TYPE_VPN:
1071         case CONNMAN_SERVICE_TYPE_GADGET:
1072                 return -EOPNOTSUPP;
1073         case CONNMAN_SERVICE_TYPE_WIFI:
1074         case CONNMAN_SERVICE_TYPE_WIMAX:
1075                 break;
1076         }
1077
1078         for (list = device_list; list != NULL; list = list->next) {
1079                 struct connman_device *device = list->data;
1080                 enum connman_service_type service_type =
1081                         __connman_device_get_service_type(device);
1082
1083                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1084                                 service_type != type) {
1085                         continue;
1086                 }
1087
1088                 err = device_scan(device);
1089                 if (err == 0 || err == -EALREADY || err == -EINPROGRESS) {
1090                         success = TRUE;
1091                 } else {
1092                         last_err = err;
1093                         DBG("device %p err %d", device, err);
1094                 }
1095         }
1096
1097         if (success == TRUE)
1098                 return 0;
1099
1100         return last_err;
1101 }
1102
1103 int __connman_device_request_hidden_scan(struct connman_device *device,
1104                                 const char *ssid, unsigned int ssid_len,
1105                                 const char *identity, const char *passphrase)
1106 {
1107         DBG("device %p", device);
1108
1109         if (device == NULL || device->driver == NULL ||
1110                         device->driver->scan_hidden == NULL)
1111                 return -EINVAL;
1112
1113         if (device->scanning == TRUE)
1114                 return -EALREADY;
1115
1116         return device->driver->scan_hidden(device, ssid, ssid_len,
1117                                         identity, passphrase);
1118 }
1119
1120 connman_bool_t __connman_device_isfiltered(const char *devname)
1121 {
1122         char **pattern;
1123
1124         if (device_filter == NULL)
1125                 goto nodevice;
1126
1127         for (pattern = device_filter; *pattern; pattern++) {
1128                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1129                         DBG("ignoring device %s (match)", devname);
1130                         return TRUE;
1131                 }
1132         }
1133
1134 nodevice:
1135         if (g_pattern_match_simple("dummy*", devname) == TRUE) {
1136                 DBG("ignoring dummy networking devices");
1137                 return TRUE;
1138         }
1139
1140         if (nodevice_filter == NULL)
1141                 return FALSE;
1142
1143         for (pattern = nodevice_filter; *pattern; pattern++) {
1144                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1145                         DBG("ignoring device %s (no match)", devname);
1146                         return TRUE;
1147                 }
1148         }
1149
1150         return FALSE;
1151 }
1152
1153 int __connman_device_init(const char *device, const char *nodevice)
1154 {
1155         DBG("");
1156
1157         if (device != NULL)
1158                 device_filter = g_strsplit(device, ",", -1);
1159
1160         if (nodevice != NULL)
1161                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1162
1163         return 0;
1164 }
1165
1166 void __connman_device_cleanup(void)
1167 {
1168         DBG("");
1169
1170         g_strfreev(nodevice_filter);
1171         g_strfreev(device_filter);
1172 }