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 struct connman_device {
  36         gint refcount;
  37         enum connman_device_type type;
  38         connman_bool_t offlinemode;
  39         connman_bool_t blocked;
  40         connman_bool_t powered;
  41         connman_bool_t powered_pending;
  42         connman_bool_t powered_persistent;
  43         connman_bool_t scanning;
  44         connman_bool_t disconnected;
  45         connman_bool_t reconnect;
  46         connman_uint16_t scan_interval;
  47         connman_uint16_t backoff_interval;
  48         char *name;
  49         char *node;
  50         char *address;
  51         char *interface;
  52         char *ident;
  53         char *path;
  54         char *devname;
  55         int phyindex;
  56         int index;
  57         unsigned int connections;
  58         guint scan_timeout;
  59
  60         struct connman_device_driver *driver;
  61         void *driver_data;
  62
  63         char *last_network;
  64         struct connman_network *network;
  65         GHashTable *networks;
  66 };
  67
  68 #define SCAN_INITIAL_DELAY 10
  69
  70 static gboolean device_scan_trigger(gpointer user_data)
  71 {
  72         struct connman_device *device = user_data;
  73
  74         DBG("device %p", device);
  75
  76         if (device->driver == NULL) {
  77                 device->scan_timeout = 0;
  78                 return FALSE;
  79         }
  80
  81         if (device->driver->scan)
  82                 device->driver->scan(device);
  83
  84         return TRUE;
  85 }
  86
  87 static void clear_scan_trigger(struct connman_device *device)
  88 {
  89         if (device->scan_timeout > 0) {
  90                 g_source_remove(device->scan_timeout);
  91                 device->scan_timeout = 0;
  92         }
  93 }
  94
  95 static void reset_scan_trigger(struct connman_device *device)
  96 {
  97         clear_scan_trigger(device);
  98
  99         if (device->scan_interval > 0) {
 100                 guint interval;
 101
 102                 if (g_hash_table_size(device->networks) == 0) {
 103                         if (device->backoff_interval >= device->scan_interval)
 104                                 device->backoff_interval = SCAN_INITIAL_DELAY;
 105                         interval = device->backoff_interval;
 106                 } else
 107                         interval = device->scan_interval;
 108
 109                 DBG("interval %d", interval);
 110
 111                 device->scan_timeout = g_timeout_add_seconds(interval,
 112                                         device_scan_trigger, device);
 113
 114                 device->backoff_interval *= 2;
 115                 if (device->backoff_interval > device->scan_interval)
 116                         device->backoff_interval = device->scan_interval;
 117         }
 118 }
 119
 120 static void force_scan_trigger(struct connman_device *device)
 121 {
 122         clear_scan_trigger(device);
 123
 124         device->scan_timeout = g_timeout_add_seconds(5,
 125                                         device_scan_trigger, device);
 126 }
 127
 128 void connman_device_schedule_scan(struct connman_device *device)
 129 {
 130         reset_scan_trigger(device);
 131 }
 132
 133 static const char *type2description(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 "Wireless";
 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         case CONNMAN_DEVICE_TYPE_GADGET:
 152                 return "Gadget";
 153
 154         }
 155
 156         return NULL;
 157 }
 158
 159 static const char *type2string(enum connman_device_type type)
 160 {
 161         switch (type) {
 162         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 163         case CONNMAN_DEVICE_TYPE_VENDOR:
 164                 break;
 165         case CONNMAN_DEVICE_TYPE_ETHERNET:
 166                 return "ethernet";
 167         case CONNMAN_DEVICE_TYPE_WIFI:
 168                 return "wifi";
 169         case CONNMAN_DEVICE_TYPE_WIMAX:
 170                 return "wimax";
 171         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 172                 return "bluetooth";
 173         case CONNMAN_DEVICE_TYPE_GPS:
 174                 return "gps";
 175         case CONNMAN_DEVICE_TYPE_CELLULAR:
 176                 return "cellular";
 177         case CONNMAN_DEVICE_TYPE_GADGET:
 178                 return "gadget";
 179
 180         }
 181
 182         return NULL;
 183 }
 184
 185 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 186 {
 187         enum connman_device_type type = connman_device_get_type(device);
 188
 189         switch (type) {
 190         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 191         case CONNMAN_DEVICE_TYPE_VENDOR:
 192         case CONNMAN_DEVICE_TYPE_GPS:
 193                 break;
 194         case CONNMAN_DEVICE_TYPE_ETHERNET:
 195                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 196         case CONNMAN_DEVICE_TYPE_WIFI:
 197                 return CONNMAN_SERVICE_TYPE_WIFI;
 198         case CONNMAN_DEVICE_TYPE_WIMAX:
 199                 return CONNMAN_SERVICE_TYPE_WIMAX;
 200         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 201                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 202         case CONNMAN_DEVICE_TYPE_CELLULAR:
 203                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 204         case CONNMAN_DEVICE_TYPE_GADGET:
 205                 return CONNMAN_SERVICE_TYPE_GADGET;
 206
 207         }
 208
 209         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 210 }
 211
 212 int __connman_device_enable(struct connman_device *device)
 213 {
 214         int err;
 215         enum connman_service_type type;
 216
 217         DBG("device %p %d", device, device->blocked);
 218
 219         if (!device->driver || !device->driver->enable)
 220                 return -EOPNOTSUPP;
 221
 222         if (device->powered_pending == TRUE)
 223                 return -EALREADY;
 224
 225         if (device->blocked == TRUE)
 226                 return -ENOLINK;
 227
 228         connman_device_set_disconnected(device, FALSE);
 229         device->scanning = FALSE;
 230
 231         err = device->driver->enable(device);
 232         if (err < 0 && err != -EALREADY) {
 233                 if (err == -EINPROGRESS) {
 234                         device->powered_pending = TRUE;
 235                         device->offlinemode = FALSE;
 236                         if (__connman_profile_get_offlinemode() == TRUE)
 237                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 238                 }
 239                 return err;
 240         }
 241
 242         device->powered_pending = TRUE;
 243         device->powered = TRUE;
 244         device->offlinemode = FALSE;
 245         if (__connman_profile_get_offlinemode() == TRUE)
 246                 __connman_profile_set_offlinemode(FALSE, FALSE);
 247
 248         type = __connman_device_get_service_type(device);
 249         __connman_technology_enable(type);
 250
 251         return 0;
 252 }
 253
 254 int __connman_device_disable(struct connman_device *device)
 255 {
 256         int err;
 257         enum connman_service_type type;
 258
 259         DBG("device %p", device);
 260
 261         if (!device->driver || !device->driver->disable)
 262                 return -EOPNOTSUPP;
 263
 264         if (device->powered == FALSE)
 265                 return -ENOLINK;
 266
 267         if (device->powered_pending == FALSE)
 268                 return -EALREADY;
 269
 270         device->reconnect = FALSE;
 271
 272         clear_scan_trigger(device);
 273
 274         g_hash_table_remove_all(device->networks);
 275
 276         err = device->driver->disable(device);
 277         if (err < 0 && err != -EALREADY) {
 278                 if (err == -EINPROGRESS)
 279                         device->powered_pending = FALSE;
 280                 return err;
 281         }
 282
 283         device->connections = 0;
 284
 285         device->powered_pending = FALSE;
 286         device->powered = FALSE;
 287
 288         type = __connman_device_get_service_type(device);
 289         __connman_technology_disable(type);
 290
 291         return 0;
 292 }
 293
 294 static int set_powered(struct connman_device *device, connman_bool_t powered)
 295 {
 296         DBG("device %p powered %d", device, powered);
 297
 298         if (powered == TRUE)
 299                 return __connman_device_enable(device);
 300         else
 301                 return __connman_device_disable(device);
 302 }
 303
 304 static int setup_device(struct connman_device *device)
 305 {
 306         DBG("device %p", device);
 307
 308         __connman_technology_add_device(device);
 309
 310         if (device->offlinemode == FALSE &&
 311                                 device->powered_persistent == TRUE)
 312                 __connman_device_enable(device);
 313
 314         return 0;
 315 }
 316
 317 static void probe_driver(struct connman_device_driver *driver)
 318 {
 319         GSList *list;
 320
 321         DBG("driver %p name %s", driver, driver->name);
 322
 323         for (list = device_list; list != NULL; list = list->next) {
 324                 struct connman_device *device = list->data;
 325
 326                 if (device->driver != NULL)
 327                         continue;
 328
 329                 if (driver->type != device->type)
 330                         continue;
 331
 332                 if (driver->probe(device) < 0)
 333                         continue;
 334
 335                 device->driver = driver;
 336
 337                 setup_device(device);
 338         }
 339 }
 340
 341 static void remove_device(struct connman_device *device)
 342 {
 343         DBG("device %p", device);
 344
 345         __connman_device_disable(device);
 346
 347         __connman_technology_remove_device(device);
 348
 349         if (device->driver->remove)
 350                 device->driver->remove(device);
 351
 352         device->driver = NULL;
 353 }
 354
 355 static void remove_driver(struct connman_device_driver *driver)
 356 {
 357         GSList *list;
 358
 359         DBG("driver %p name %s", driver, driver->name);
 360
 361         for (list = device_list; list != NULL; list = list->next) {
 362                 struct connman_device *device = list->data;
 363
 364                 if (device->driver == driver)
 365                         remove_device(device);
 366         }
 367 }
 368
 369 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 370 {
 371         if (device == NULL || device->driver == NULL)
 372                 return FALSE;
 373
 374         return TRUE;
 375 }
 376
 377 static GSList *driver_list = NULL;
 378
 379 static gint compare_priority(gconstpointer a, gconstpointer b)
 380 {
 381         const struct connman_device_driver *driver1 = a;
 382         const struct connman_device_driver *driver2 = b;
 383
 384         return driver2->priority - driver1->priority;
 385 }
 386
 387 /**
 388  * connman_device_driver_register:
 389  * @driver: device driver definition
 390  *
 391  * Register a new device driver
 392  *
 393  * Returns: %0 on success
 394  */
 395 int connman_device_driver_register(struct connman_device_driver *driver)
 396 {
 397         DBG("driver %p name %s", driver, driver->name);
 398
 399         driver_list = g_slist_insert_sorted(driver_list, driver,
 400                                                         compare_priority);
 401         probe_driver(driver);
 402
 403         return 0;
 404 }
 405
 406 /**
 407  * connman_device_driver_unregister:
 408  * @driver: device driver definition
 409  *
 410  * Remove a previously registered device driver
 411  */
 412 void connman_device_driver_unregister(struct connman_device_driver *driver)
 413 {
 414         DBG("driver %p name %s", driver, driver->name);
 415
 416         driver_list = g_slist_remove(driver_list, driver);
 417
 418         remove_driver(driver);
 419 }
 420
 421 static void unregister_network(gpointer data)
 422 {
 423         struct connman_network *network = data;
 424
 425         DBG("network %p", network);
 426
 427         connman_element_unregister((struct connman_element *) network);
 428
 429         __connman_network_set_device(network, NULL);
 430
 431         connman_network_unref(network);
 432 }
 433
 434 static void device_destruct(struct connman_device *device)
 435 {
 436         DBG("device %p name %s", device, device->name);
 437
 438         clear_scan_trigger(device);
 439
 440         g_free(device->ident);
 441         g_free(device->node);
 442         g_free(device->name);
 443         g_free(device->address);
 444         g_free(device->interface);
 445         g_free(device->path);
 446         g_free(device->devname);
 447
 448         g_free(device->last_network);
 449
 450         g_hash_table_destroy(device->networks);
 451         device->networks = NULL;
 452
 453         g_free(device);
 454 }
 455
 456 /**
 457  * connman_device_create:
 458  * @node: device node name (for example an address)
 459  * @type: device type
 460  *
 461  * Allocate a new device of given #type and assign the #node name to it.
 462  *
 463  * Returns: a newly-allocated #connman_device structure
 464  */
 465 struct connman_device *connman_device_create(const char *node,
 466                                                 enum connman_device_type type)
 467 {
 468         struct connman_device *device;
 469         enum connman_service_type service_type;
 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->powered_persistent = TRUE;
 488
 489         device->phyindex = -1;
 490
 491         service_type = __connman_device_get_service_type(device);
 492         device->blocked = __connman_technology_get_blocked(service_type);
 493         device->backoff_interval = SCAN_INITIAL_DELAY;
 494
 495         switch (type) {
 496         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 497         case CONNMAN_DEVICE_TYPE_ETHERNET:
 498         case CONNMAN_DEVICE_TYPE_WIMAX:
 499         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 500         case CONNMAN_DEVICE_TYPE_CELLULAR:
 501         case CONNMAN_DEVICE_TYPE_GPS:
 502         case CONNMAN_DEVICE_TYPE_GADGET:
 503         case CONNMAN_DEVICE_TYPE_VENDOR:
 504                 device->scan_interval = 0;
 505                 break;
 506         case CONNMAN_DEVICE_TYPE_WIFI:
 507                 if (bg_scan == TRUE)
 508                         device->scan_interval = 300;
 509                 else
 510                         device->scan_interval = 0;
 511                 break;
 512         }
 513
 514         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 515                                                 g_free, unregister_network);
 516
 517         device_list = g_slist_append(device_list, device);
 518
 519         return device;
 520 }
 521
 522 /**
 523  * connman_device_ref:
 524  * @device: device structure
 525  *
 526  * Increase reference counter of device
 527  */
 528 struct connman_device *connman_device_ref(struct connman_device *device)
 529 {
 530         DBG("%p", device);
 531
 532         g_atomic_int_inc(&device->refcount);
 533
 534         return device;
 535 }
 536
 537 /**
 538  * connman_device_unref:
 539  * @device: device structure
 540  *
 541  * Decrease reference counter of device
 542  */
 543 void connman_device_unref(struct connman_device *device)
 544 {
 545         if (g_atomic_int_dec_and_test(&device->refcount) == FALSE)
 546                 return;
 547
 548         if (device->driver) {
 549                 device->driver->remove(device);
 550                 device->driver = NULL;
 551         }
 552
 553         device_list = g_slist_remove(device_list, device);
 554
 555         device_destruct(device);
 556 }
 557
 558 const char *__connman_device_get_type(struct connman_device *device)
 559 {
 560         return type2string(device->type);
 561 }
 562
 563 /**
 564  * connman_device_get_type:
 565  * @device: device structure
 566  *
 567  * Get type of device
 568  */
 569 enum connman_device_type connman_device_get_type(struct connman_device *device)
 570 {
 571         return device->type;
 572 }
 573
 574 /**
 575  * connman_device_set_index:
 576  * @device: device structure
 577  * @index: index number
 578  *
 579  * Set index number of device
 580  */
 581 void connman_device_set_index(struct connman_device *device, int index)
 582 {
 583         device->index = index;
 584 }
 585
 586 /**
 587  * connman_device_get_index:
 588  * @device: device structure
 589  *
 590  * Get index number of device
 591  */
 592 int connman_device_get_index(struct connman_device *device)
 593 {
 594         return device->index;
 595 }
 596
 597 int __connman_device_get_phyindex(struct connman_device *device)
 598 {
 599         return device->phyindex;
 600 }
 601
 602 void __connman_device_set_phyindex(struct connman_device *device,
 603                                                         int phyindex)
 604 {
 605         device->phyindex = phyindex;
 606 }
 607
 608 /**
 609  * connman_device_set_interface:
 610  * @device: device structure
 611  * @interface: interface name
 612  *
 613  * Set interface name of device
 614  */
 615 void connman_device_set_interface(struct connman_device *device,
 616                                                 const char *interface)
 617 {
 618         g_free(device->devname);
 619         device->devname = g_strdup(interface);
 620
 621         g_free(device->interface);
 622         device->interface = g_strdup(interface);
 623
 624         if (device->name == NULL) {
 625                 const char *str = type2description(device->type);
 626                 if (str != NULL && device->interface != NULL)
 627                         device->name = g_strdup_printf("%s (%s)", str,
 628                                                         device->interface);
 629         }
 630 }
 631
 632 /**
 633  * connman_device_set_ident:
 634  * @device: device structure
 635  * @ident: unique identifier
 636  *
 637  * Set unique identifier of device
 638  */
 639 void connman_device_set_ident(struct connman_device *device,
 640                                                         const char *ident)
 641 {
 642         g_free(device->ident);
 643         device->ident = g_strdup(ident);
 644 }
 645
 646 const char *connman_device_get_ident(struct connman_device *device)
 647 {
 648         return device->ident;
 649 }
 650
 651 /**
 652  * connman_device_set_powered:
 653  * @device: device structure
 654  * @powered: powered state
 655  *
 656  * Change power state of device
 657  */
 658 int connman_device_set_powered(struct connman_device *device,
 659                                                 connman_bool_t powered)
 660 {
 661         int err;
 662         enum connman_service_type type;
 663
 664         DBG("driver %p powered %d", device, powered);
 665
 666         if (device->powered == powered) {
 667                 device->powered_pending = powered;
 668                 return -EALREADY;
 669         }
 670
 671         if (powered == TRUE)
 672                 err = __connman_device_enable(device);
 673         else
 674                 err = __connman_device_disable(device);
 675
 676         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 677                 return err;
 678
 679         device->powered = powered;
 680         device->powered_pending = powered;
 681
 682         type = __connman_device_get_service_type(device);
 683
 684         if (device->powered == TRUE)
 685                 __connman_technology_enable(type);
 686         else
 687                 __connman_technology_disable(type);
 688
 689         if (device->offlinemode == TRUE && powered == TRUE)
 690                 return connman_device_set_powered(device, FALSE);
 691
 692         if (powered == FALSE)
 693                 return 0;
 694
 695         reset_scan_trigger(device);
 696
 697         if (device->driver && device->driver->scan)
 698                 device->driver->scan(device);
 699
 700         return 0;
 701 }
 702
 703 int __connman_device_set_blocked(struct connman_device *device,
 704                                                 connman_bool_t blocked)
 705 {
 706         connman_bool_t powered;
 707
 708         DBG("device %p blocked %d", device, blocked);
 709
 710         device->blocked = blocked;
 711
 712         if (device->offlinemode == TRUE)
 713                 return 0;
 714
 715         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 716
 717         if (blocked == FALSE)
 718                 powered = device->powered_persistent;
 719         else
 720                 powered = FALSE;
 721
 722         return set_powered(device, powered);
 723 }
 724
 725 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 726 {
 727         return device->blocked;
 728 }
 729
 730 int __connman_device_scan(struct connman_device *device)
 731 {
 732         if (!device->driver || !device->driver->scan)
 733                 return -EOPNOTSUPP;
 734
 735         if (device->powered == FALSE)
 736                 return -ENOLINK;
 737
 738         reset_scan_trigger(device);
 739
 740         return device->driver->scan(device);
 741 }
 742
 743 int __connman_device_enable_persistent(struct connman_device *device)
 744 {
 745         int err;
 746
 747         DBG("device %p", device);
 748
 749         device->powered_persistent = TRUE;
 750
 751         __connman_storage_save_device(device);
 752
 753         err = __connman_device_enable(device);
 754         if (err == 0 || err == -EINPROGRESS) {
 755                 device->offlinemode = FALSE;
 756                 if (__connman_profile_get_offlinemode() == TRUE) {
 757                         __connman_profile_set_offlinemode(FALSE, FALSE);
 758
 759                         __connman_profile_save_default();
 760                 }
 761         }
 762
 763         return err;
 764 }
 765
 766 int __connman_device_disable_persistent(struct connman_device *device)
 767 {
 768         DBG("device %p", device);
 769
 770         device->powered_persistent = FALSE;
 771
 772         __connman_storage_save_device(device);
 773
 774         return __connman_device_disable(device);
 775 }
 776
 777 int __connman_device_disconnect(struct connman_device *device)
 778 {
 779         GHashTableIter iter;
 780         gpointer key, value;
 781
 782         DBG("device %p", device);
 783
 784         connman_device_set_disconnected(device, TRUE);
 785
 786         g_hash_table_iter_init(&iter, device->networks);
 787
 788         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 789                 struct connman_network *network = value;
 790
 791                 if (connman_network_get_connecting(network) == TRUE) {
 792                         /*
 793                          * Skip network in the process of connecting.
 794                          * This is a workaround for WiFi networks serviced
 795                          * by the supplicant plugin that hold a reference
 796                          * to the network.  If we disconnect the network
 797                          * here then the referenced object will not be
 798                          * registered and usage (like launching DHCP client)
 799                          * will fail.  There is nothing to be gained by
 800                          * removing the network here anyway.
 801                          */
 802                         connman_warn("Skipping disconnect of %s, network is connecting.",
 803                                 connman_network_get_identifier(network));
 804                         continue;
 805                 }
 806
 807                 __connman_network_disconnect(network);
 808         }
 809
 810         return 0;
 811 }
 812
 813 static void mark_network_available(gpointer key, gpointer value,
 814                                                         gpointer user_data)
 815 {
 816         struct connman_network *network = value;
 817
 818         connman_network_set_available(network, TRUE);
 819 }
 820
 821 static void mark_network_unavailable(gpointer key, gpointer value,
 822                                                         gpointer user_data)
 823 {
 824         struct connman_network *network = value;
 825
 826         if (connman_network_get_connected(network) == TRUE)
 827                 return;
 828
 829         connman_network_set_available(network, FALSE);
 830 }
 831
 832 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 833                                                         gpointer user_data)
 834 {
 835         struct connman_network *network = value;
 836
 837         if (connman_network_get_connected(network) == TRUE)
 838                 return FALSE;
 839
 840         if (connman_network_get_available(network) == TRUE)
 841                 return FALSE;
 842
 843         return TRUE;
 844 }
 845
 846 void __connman_device_cleanup_networks(struct connman_device *device)
 847 {
 848         g_hash_table_foreach_remove(device->networks,
 849                                         remove_unavailable_network, NULL);
 850 }
 851
 852 connman_bool_t __connman_device_scanning(struct connman_device *device)
 853 {
 854         return device->scanning;
 855 }
 856
 857 void connman_device_reset_scanning(struct connman_device *device)
 858 {
 859         device->scanning = FALSE;
 860
 861         g_hash_table_foreach(device->networks,
 862                                 mark_network_available, NULL);
 863
 864 }
 865
 866 /**
 867  * connman_device_set_scanning:
 868  * @device: device structure
 869  * @scanning: scanning state
 870  *
 871  * Change scanning state of device
 872  */
 873 int connman_device_set_scanning(struct connman_device *device,
 874                                                 connman_bool_t scanning)
 875 {
 876         DBG("device %p scanning %d", device, scanning);
 877
 878         if (!device->driver || !device->driver->scan)
 879                 return -EINVAL;
 880
 881         if (device->scanning == scanning)
 882                 return -EALREADY;
 883
 884         device->scanning = scanning;
 885
 886         if (scanning == TRUE) {
 887                 reset_scan_trigger(device);
 888
 889                 g_hash_table_foreach(device->networks,
 890                                         mark_network_unavailable, NULL);
 891
 892                 return 0;
 893         }
 894
 895         __connman_device_cleanup_networks(device);
 896
 897         if (device->connections > 0)
 898                 return 0;
 899
 900         __connman_service_auto_connect();
 901
 902         return 0;
 903 }
 904
 905 /**
 906  * connman_device_set_disconnected:
 907  * @device: device structure
 908  * @disconnected: disconnected state
 909  *
 910  * Change disconnected state of device (only for device with networks)
 911  */
 912 int connman_device_set_disconnected(struct connman_device *device,
 913                                                 connman_bool_t disconnected)
 914 {
 915         DBG("device %p disconnected %d", device, disconnected);
 916
 917         if (device->disconnected == disconnected)
 918                 return -EALREADY;
 919
 920         device->disconnected = disconnected;
 921
 922         if (disconnected == TRUE)
 923                 force_scan_trigger(device);
 924
 925         return 0;
 926 }
 927
 928 /**
 929  * connman_device_get_disconnected:
 930  * @device: device structure
 931  *
 932  * Get device disconnected state
 933  */
 934 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 935 {
 936         return device->disconnected;
 937 }
 938
 939 /**
 940  * connman_device_set_string:
 941  * @device: device structure
 942  * @key: unique identifier
 943  * @value: string value
 944  *
 945  * Set string value for specific key
 946  */
 947 int connman_device_set_string(struct connman_device *device,
 948                                         const char *key, const char *value)
 949 {
 950         DBG("device %p key %s value %s", device, key, value);
 951
 952         if (g_str_equal(key, "Address") == TRUE) {
 953                 g_free(device->address);
 954                 device->address = g_strdup(value);
 955         } else if (g_str_equal(key, "Name") == TRUE) {
 956                 g_free(device->name);
 957                 device->name = g_strdup(value);
 958         } else if (g_str_equal(key, "Node") == TRUE) {
 959                 g_free(device->node);
 960                 device->node = g_strdup(value);
 961         } else if (g_str_equal(key, "Path") == TRUE) {
 962                 g_free(device->path);
 963                 device->path = g_strdup(value);
 964         } else {
 965                 return -EINVAL;
 966         }
 967
 968         return 0;
 969 }
 970
 971 /**
 972  * connman_device_get_string:
 973  * @device: device structure
 974  * @key: unique identifier
 975  *
 976  * Get string value for specific key
 977  */
 978 const char *connman_device_get_string(struct connman_device *device,
 979                                                         const char *key)
 980 {
 981         DBG("device %p key %s", device, key);
 982
 983         if (g_str_equal(key, "Address") == TRUE)
 984                 return device->address;
 985         else if (g_str_equal(key, "Name") == TRUE)
 986                 return device->name;
 987         else if (g_str_equal(key, "Node") == TRUE)
 988                 return device->node;
 989         else if (g_str_equal(key, "Interface") == TRUE)
 990                 return device->interface;
 991         else if (g_str_equal(key, "Path") == TRUE)
 992                 return device->path;
 993
 994         return NULL;
 995 }
 996
 997 static void set_offlinemode(struct connman_device *device,
 998                                 connman_bool_t offlinemode)
 999 {
1000         connman_bool_t powered;
1001
1002         DBG("device %p name %s", device, device->name);
1003
1004         if (device == NULL)
1005                 return;
1006
1007         device->offlinemode = offlinemode;
1008
1009         if (device->blocked == TRUE)
1010                 return;
1011
1012         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1013
1014         if (device->powered == powered)
1015                 return;
1016
1017         if (device->powered_persistent == FALSE)
1018                 powered = FALSE;
1019
1020         set_powered(device, powered);
1021 }
1022
1023 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1024 {
1025         GSList *list;
1026
1027         DBG("offlinmode %d", offlinemode);
1028
1029         for (list = device_list; list != NULL; list = list->next) {
1030                 struct connman_device *device = list->data;
1031
1032                 set_offlinemode(device, offlinemode);
1033         }
1034
1035         __connman_notifier_offlinemode(offlinemode);
1036
1037         return 0;
1038 }
1039
1040 void __connman_device_increase_connections(struct connman_device *device)
1041 {
1042         if (device == NULL)
1043                 return;
1044
1045         device->connections++;
1046 }
1047
1048 void __connman_device_decrease_connections(struct connman_device *device)
1049 {
1050         if (device == NULL)
1051                 return;
1052
1053         device->connections--;
1054
1055         if (device->connections == 0)
1056                 device->backoff_interval = SCAN_INITIAL_DELAY;
1057 }
1058
1059 /**
1060  * connman_device_add_network:
1061  * @device: device structure
1062  * @network: network structure
1063  *
1064  * Add new network to the device
1065  */
1066 int connman_device_add_network(struct connman_device *device,
1067                                         struct connman_network *network)
1068 {
1069         const char *identifier = connman_network_get_identifier(network);
1070         int err;
1071
1072         DBG("device %p network %p", device, network);
1073
1074         if (identifier == NULL)
1075                 return -EINVAL;
1076
1077         __connman_network_set_device(network, device);
1078
1079         err = connman_element_register((struct connman_element *) network,
1080                                 NULL);
1081         if (err < 0) {
1082                 __connman_network_set_device(network, NULL);
1083                 return err;
1084         }
1085
1086         g_hash_table_insert(device->networks, g_strdup(identifier),
1087                                                                 network);
1088
1089         return 0;
1090 }
1091
1092 /**
1093  * connman_device_get_network:
1094  * @device: device structure
1095  * @identifier: network identifier
1096  *
1097  * Get network for given identifier
1098  */
1099 struct connman_network *connman_device_get_network(struct connman_device *device,
1100                                                         const char *identifier)
1101 {
1102         DBG("device %p identifier %s", device, identifier);
1103
1104         return g_hash_table_lookup(device->networks, identifier);
1105 }
1106
1107 /**
1108  * connman_device_remove_network:
1109  * @device: device structure
1110  * @identifier: network identifier
1111  *
1112  * Remove network for given identifier
1113  */
1114 int connman_device_remove_network(struct connman_device *device,
1115                                                         const char *identifier)
1116 {
1117         struct connman_network *network;
1118
1119         DBG("device %p identifier %s", device, identifier);
1120
1121         network = connman_device_get_network(device, identifier);
1122         if (network == NULL)
1123                 return 0;
1124
1125         connman_element_unregister((struct connman_element *) network);
1126         g_hash_table_remove(device->networks, identifier);
1127
1128         return 0;
1129 }
1130
1131 void connman_device_remove_all_networks(struct connman_device *device)
1132 {
1133         g_hash_table_remove_all(device->networks);
1134 }
1135
1136 void __connman_device_set_network(struct connman_device *device,
1137                                         struct connman_network *network)
1138 {
1139         const char *name;
1140
1141         if (device == NULL)
1142                 return;
1143
1144         if (device->network == network)
1145                 return;
1146
1147         if (device->network != NULL)
1148                 connman_network_unref(device->network);
1149
1150         if (network != NULL) {
1151                 name = connman_network_get_string(network,
1152                                                 CONNMAN_PROPERTY_ID_NAME);
1153                 g_free(device->last_network);
1154                 device->last_network = g_strdup(name);
1155
1156                 device->network = connman_network_ref(network);
1157         } else {
1158                 g_free(device->last_network);
1159                 device->last_network = NULL;
1160
1161                 device->network = NULL;
1162         }
1163 }
1164
1165 void __connman_device_set_reconnect(struct connman_device *device,
1166                                                 connman_bool_t reconnect)
1167 {
1168         device->reconnect = reconnect;
1169 }
1170
1171 connman_bool_t  __connman_device_get_reconnect(
1172                                 struct connman_device *device)
1173 {
1174         return device->reconnect;
1175 }
1176
1177 static gboolean match_driver(struct connman_device *device,
1178                                         struct connman_device_driver *driver)
1179 {
1180         if (device->type == driver->type ||
1181                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1182                 return TRUE;
1183
1184         return FALSE;
1185 }
1186
1187 static int device_probe(struct connman_device *device)
1188 {
1189         GSList *list;
1190
1191         DBG("device %p name %s", device, device->name);
1192
1193         if (device->driver != NULL)
1194                 return -EALREADY;
1195
1196         for (list = driver_list; list; list = list->next) {
1197                 struct connman_device_driver *driver = list->data;
1198
1199                 if (match_driver(device, driver) == FALSE)
1200                         continue;
1201
1202                 DBG("driver %p name %s", driver, driver->name);
1203
1204                 if (driver->probe(device) == 0) {
1205                         device->driver = driver;
1206                         break;
1207                 }
1208         }
1209
1210         if (device->driver == NULL)
1211                 return -ENODEV;
1212
1213         return setup_device(device);
1214 }
1215
1216 static void device_remove(struct connman_device *device)
1217 {
1218         DBG("device %p name %s", device, device->name);
1219
1220         if (device->driver == NULL)
1221                 return;
1222
1223         remove_device(device);
1224 }
1225
1226 /**
1227  * connman_device_register:
1228  * @device: device structure
1229  *
1230  * Register device with the system
1231  */
1232 int connman_device_register(struct connman_device *device)
1233 {
1234         __connman_storage_load_device(device);
1235
1236         device->offlinemode = __connman_profile_get_offlinemode();
1237
1238         return device_probe(device);
1239 }
1240
1241 /**
1242  * connman_device_unregister:
1243  * @device: device structure
1244  *
1245  * Unregister device with the system
1246  */
1247 void connman_device_unregister(struct connman_device *device)
1248 {
1249         __connman_storage_save_device(device);
1250
1251         device_remove(device);
1252 }
1253
1254 /**
1255  * connman_device_get_data:
1256  * @device: device structure
1257  *
1258  * Get private device data pointer
1259  */
1260 void *connman_device_get_data(struct connman_device *device)
1261 {
1262         return device->driver_data;
1263 }
1264
1265 /**
1266  * connman_device_set_data:
1267  * @device: device structure
1268  * @data: data pointer
1269  *
1270  * Set private device data pointer
1271  */
1272 void connman_device_set_data(struct connman_device *device, void *data)
1273 {
1274         device->driver_data = data;
1275 }
1276
1277 struct connman_device *__connman_device_find_device(
1278                                 enum connman_service_type type)
1279 {
1280         GSList *list;
1281
1282         for (list = device_list; list != NULL; list = list->next) {
1283                 struct connman_device *device = list->data;
1284                 enum connman_service_type service_type =
1285                         connman_device_get_type(device);
1286
1287                 if (service_type != type)
1288                         continue;
1289
1290                 return device;
1291         }
1292
1293         return NULL;
1294 }
1295
1296 int __connman_device_request_scan(enum connman_service_type type)
1297 {
1298         GSList *list;
1299         int err;
1300
1301         switch (type) {
1302         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1303         case CONNMAN_SERVICE_TYPE_SYSTEM:
1304         case CONNMAN_SERVICE_TYPE_ETHERNET:
1305         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1306         case CONNMAN_SERVICE_TYPE_CELLULAR:
1307         case CONNMAN_SERVICE_TYPE_GPS:
1308         case CONNMAN_SERVICE_TYPE_VPN:
1309         case CONNMAN_SERVICE_TYPE_GADGET:
1310                 return 0;
1311         case CONNMAN_SERVICE_TYPE_WIFI:
1312         case CONNMAN_SERVICE_TYPE_WIMAX:
1313                 break;
1314         }
1315
1316         for (list = device_list; list != NULL; list = list->next) {
1317                 struct connman_device *device = list->data;
1318                 enum connman_service_type service_type =
1319                         __connman_device_get_service_type(device);
1320
1321                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1322                                 service_type != type) {
1323                         continue;
1324                 }
1325
1326                 err = __connman_device_scan(device);
1327                 if (err < 0 && err != -EINPROGRESS) {
1328                         DBG("err %d", err);
1329                         /* XXX maybe only a continue? */
1330                         return err;
1331                 }
1332         }
1333
1334         return 0;
1335 }
1336
1337 static int set_technology(enum connman_service_type type, connman_bool_t enable)
1338 {
1339         GSList *list;
1340         int err;
1341
1342         DBG("type %d enable %d", type, enable);
1343
1344         switch (type) {
1345         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1346         case CONNMAN_SERVICE_TYPE_SYSTEM:
1347         case CONNMAN_SERVICE_TYPE_GPS:
1348         case CONNMAN_SERVICE_TYPE_VPN:
1349         case CONNMAN_SERVICE_TYPE_GADGET:
1350                 return 0;
1351         case CONNMAN_SERVICE_TYPE_ETHERNET:
1352         case CONNMAN_SERVICE_TYPE_WIFI:
1353         case CONNMAN_SERVICE_TYPE_WIMAX:
1354         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1355         case CONNMAN_SERVICE_TYPE_CELLULAR:
1356                 break;
1357         }
1358
1359         for (list = device_list; list != NULL; list = list->next) {
1360                 struct connman_device *device = list->data;
1361                 enum connman_service_type service_type =
1362                         __connman_device_get_service_type(device);
1363
1364                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1365                                 service_type != type) {
1366                         continue;
1367                 }
1368
1369                 if (enable == TRUE)
1370                         err = __connman_device_enable_persistent(device);
1371                 else
1372                         err = __connman_device_disable_persistent(device);
1373
1374                 if (err < 0 && err != -EINPROGRESS) {
1375                         DBG("err %d", err);
1376                         /* XXX maybe only a continue? */
1377                         return err;
1378                 }
1379         }
1380
1381         return 0;
1382 }
1383
1384 int __connman_device_enable_technology(enum connman_service_type type)
1385 {
1386         return set_technology(type, TRUE);
1387 }
1388
1389 int __connman_device_disable_technology(enum connman_service_type type)
1390 {
1391         return set_technology(type, FALSE);
1392 }
1393
1394 connman_bool_t __connman_device_isfiltered(const char *devname)
1395 {
1396         char **pattern;
1397
1398         if (device_filter == NULL)
1399                 goto nodevice;
1400
1401         for (pattern = device_filter; *pattern; pattern++) {
1402                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1403                         DBG("ignoring device %s (match)", devname);
1404                         return TRUE;
1405                 }
1406         }
1407
1408 nodevice:
1409         if (nodevice_filter == NULL)
1410                 return FALSE;
1411
1412         for (pattern = nodevice_filter; *pattern; pattern++) {
1413                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1414                         DBG("ignoring device %s (no match)", devname);
1415                         return TRUE;
1416                 }
1417         }
1418
1419         return FALSE;
1420 }
1421
1422 static int device_load(struct connman_device *device)
1423 {
1424         const char *ident = __connman_profile_active_ident();
1425         GKeyFile *keyfile;
1426         GError *error = NULL;
1427         gchar *identifier;
1428         connman_bool_t powered;
1429
1430         DBG("device %p", device);
1431
1432         keyfile = __connman_storage_open_profile(ident);
1433         if (keyfile == NULL)
1434                 return 0;
1435
1436         identifier = g_strdup_printf("device_%s", device->name);
1437         if (identifier == NULL)
1438                 goto done;
1439
1440         powered = g_key_file_get_boolean(keyfile, identifier,
1441                                                 "Powered", &error);
1442         if (error == NULL)
1443                 device->powered_persistent = powered;
1444         g_clear_error(&error);
1445
1446 done:
1447         g_free(identifier);
1448
1449         __connman_storage_close_profile(ident, keyfile, FALSE);
1450
1451         return 0;
1452 }
1453
1454 static int device_save(struct connman_device *device)
1455 {
1456         const char *ident = __connman_profile_active_ident();
1457         GKeyFile *keyfile;
1458         gchar *identifier;
1459
1460         DBG("device %p", device);
1461
1462         keyfile = __connman_storage_open_profile(ident);
1463         if (keyfile == NULL)
1464                 return 0;
1465
1466         identifier = g_strdup_printf("device_%s", device->name);
1467         if (identifier == NULL)
1468                 goto done;
1469
1470         g_key_file_set_boolean(keyfile, identifier,
1471                                         "Powered", device->powered_persistent);
1472
1473 done:
1474         g_free(identifier);
1475
1476         __connman_storage_close_profile(ident, keyfile, TRUE);
1477
1478         return 0;
1479 }
1480
1481 static struct connman_storage device_storage = {
1482         .name           = "device",
1483         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1484         .device_load    = device_load,
1485         .device_save    = device_save,
1486 };
1487
1488 int __connman_device_init(const char *device, const char *nodevice)
1489 {
1490         DBG("");
1491
1492         if (device != NULL)
1493                 device_filter = g_strsplit(device, ",", -1);
1494
1495         if (nodevice != NULL)
1496                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1497
1498         return connman_storage_register(&device_storage);
1499 }
1500
1501 void __connman_device_cleanup(void)
1502 {
1503         DBG("");
1504
1505         g_strfreev(nodevice_filter);
1506         g_strfreev(device_filter);
1507
1508         connman_storage_unregister(&device_storage);
1509 }