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 free_network(gpointer data)
 422 {
 423         struct connman_network *network = data;
 424
 425         DBG("network %p", network);
 426
 427         __connman_network_set_device(network, NULL);
 428
 429         connman_network_unref(network);
 430 }
 431
 432 static void device_destruct(struct connman_device *device)
 433 {
 434         DBG("device %p name %s", device, device->name);
 435
 436         clear_scan_trigger(device);
 437
 438         g_free(device->ident);
 439         g_free(device->node);
 440         g_free(device->name);
 441         g_free(device->address);
 442         g_free(device->interface);
 443         g_free(device->path);
 444         g_free(device->devname);
 445
 446         g_free(device->last_network);
 447
 448         g_hash_table_destroy(device->networks);
 449         device->networks = NULL;
 450
 451         g_free(device);
 452 }
 453
 454 /**
 455  * connman_device_create:
 456  * @node: device node name (for example an address)
 457  * @type: device type
 458  *
 459  * Allocate a new device of given #type and assign the #node name to it.
 460  *
 461  * Returns: a newly-allocated #connman_device structure
 462  */
 463 struct connman_device *connman_device_create(const char *node,
 464                                                 enum connman_device_type type)
 465 {
 466         struct connman_device *device;
 467         enum connman_service_type service_type;
 468         connman_bool_t bg_scan;
 469
 470         DBG("node %s type %d", node, type);
 471
 472         device = g_try_new0(struct connman_device, 1);
 473         if (device == NULL)
 474                 return NULL;
 475
 476         DBG("device %p", device);
 477
 478         device->refcount = 1;
 479
 480         bg_scan = connman_setting_get_bool("BackgroundScanning");
 481
 482         device->type = type;
 483         device->name = g_strdup(type2description(device->type));
 484
 485         device->powered_persistent = TRUE;
 486
 487         device->phyindex = -1;
 488
 489         service_type = __connman_device_get_service_type(device);
 490         device->blocked = __connman_technology_get_blocked(service_type);
 491         device->backoff_interval = SCAN_INITIAL_DELAY;
 492
 493         switch (type) {
 494         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 495         case CONNMAN_DEVICE_TYPE_ETHERNET:
 496         case CONNMAN_DEVICE_TYPE_WIMAX:
 497         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 498         case CONNMAN_DEVICE_TYPE_CELLULAR:
 499         case CONNMAN_DEVICE_TYPE_GPS:
 500         case CONNMAN_DEVICE_TYPE_GADGET:
 501         case CONNMAN_DEVICE_TYPE_VENDOR:
 502                 device->scan_interval = 0;
 503                 break;
 504         case CONNMAN_DEVICE_TYPE_WIFI:
 505                 if (bg_scan == TRUE)
 506                         device->scan_interval = 300;
 507                 else
 508                         device->scan_interval = 0;
 509                 break;
 510         }
 511
 512         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 513                                                 g_free, free_network);
 514
 515         device_list = g_slist_append(device_list, device);
 516
 517         return device;
 518 }
 519
 520 /**
 521  * connman_device_ref:
 522  * @device: device structure
 523  *
 524  * Increase reference counter of device
 525  */
 526 struct connman_device *connman_device_ref(struct connman_device *device)
 527 {
 528         DBG("%p", device);
 529
 530         g_atomic_int_inc(&device->refcount);
 531
 532         return device;
 533 }
 534
 535 /**
 536  * connman_device_unref:
 537  * @device: device structure
 538  *
 539  * Decrease reference counter of device
 540  */
 541 void connman_device_unref(struct connman_device *device)
 542 {
 543         if (g_atomic_int_dec_and_test(&device->refcount) == FALSE)
 544                 return;
 545
 546         if (device->driver) {
 547                 device->driver->remove(device);
 548                 device->driver = NULL;
 549         }
 550
 551         device_list = g_slist_remove(device_list, device);
 552
 553         device_destruct(device);
 554 }
 555
 556 const char *__connman_device_get_type(struct connman_device *device)
 557 {
 558         return type2string(device->type);
 559 }
 560
 561 /**
 562  * connman_device_get_type:
 563  * @device: device structure
 564  *
 565  * Get type of device
 566  */
 567 enum connman_device_type connman_device_get_type(struct connman_device *device)
 568 {
 569         return device->type;
 570 }
 571
 572 /**
 573  * connman_device_set_index:
 574  * @device: device structure
 575  * @index: index number
 576  *
 577  * Set index number of device
 578  */
 579 void connman_device_set_index(struct connman_device *device, int index)
 580 {
 581         device->index = index;
 582 }
 583
 584 /**
 585  * connman_device_get_index:
 586  * @device: device structure
 587  *
 588  * Get index number of device
 589  */
 590 int connman_device_get_index(struct connman_device *device)
 591 {
 592         return device->index;
 593 }
 594
 595 int __connman_device_get_phyindex(struct connman_device *device)
 596 {
 597         return device->phyindex;
 598 }
 599
 600 void __connman_device_set_phyindex(struct connman_device *device,
 601                                                         int phyindex)
 602 {
 603         device->phyindex = phyindex;
 604 }
 605
 606 /**
 607  * connman_device_set_interface:
 608  * @device: device structure
 609  * @interface: interface name
 610  *
 611  * Set interface name of device
 612  */
 613 void connman_device_set_interface(struct connman_device *device,
 614                                                 const char *interface)
 615 {
 616         g_free(device->devname);
 617         device->devname = g_strdup(interface);
 618
 619         g_free(device->interface);
 620         device->interface = g_strdup(interface);
 621
 622         if (device->name == NULL) {
 623                 const char *str = type2description(device->type);
 624                 if (str != NULL && device->interface != NULL)
 625                         device->name = g_strdup_printf("%s (%s)", str,
 626                                                         device->interface);
 627         }
 628 }
 629
 630 /**
 631  * connman_device_set_ident:
 632  * @device: device structure
 633  * @ident: unique identifier
 634  *
 635  * Set unique identifier of device
 636  */
 637 void connman_device_set_ident(struct connman_device *device,
 638                                                         const char *ident)
 639 {
 640         g_free(device->ident);
 641         device->ident = g_strdup(ident);
 642 }
 643
 644 const char *connman_device_get_ident(struct connman_device *device)
 645 {
 646         return device->ident;
 647 }
 648
 649 /**
 650  * connman_device_set_powered:
 651  * @device: device structure
 652  * @powered: powered state
 653  *
 654  * Change power state of device
 655  */
 656 int connman_device_set_powered(struct connman_device *device,
 657                                                 connman_bool_t powered)
 658 {
 659         int err;
 660         enum connman_service_type type;
 661
 662         DBG("driver %p powered %d", device, powered);
 663
 664         if (device->powered == powered) {
 665                 device->powered_pending = powered;
 666                 return -EALREADY;
 667         }
 668
 669         if (powered == TRUE)
 670                 err = __connman_device_enable(device);
 671         else
 672                 err = __connman_device_disable(device);
 673
 674         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 675                 return err;
 676
 677         device->powered = powered;
 678         device->powered_pending = powered;
 679
 680         type = __connman_device_get_service_type(device);
 681
 682         if (device->powered == TRUE)
 683                 __connman_technology_enable(type);
 684         else
 685                 __connman_technology_disable(type);
 686
 687         if (device->offlinemode == TRUE && powered == TRUE)
 688                 return connman_device_set_powered(device, FALSE);
 689
 690         if (powered == FALSE)
 691                 return 0;
 692
 693         reset_scan_trigger(device);
 694
 695         if (device->driver && device->driver->scan)
 696                 device->driver->scan(device);
 697
 698         return 0;
 699 }
 700
 701 int __connman_device_set_blocked(struct connman_device *device,
 702                                                 connman_bool_t blocked)
 703 {
 704         connman_bool_t powered;
 705
 706         DBG("device %p blocked %d", device, blocked);
 707
 708         device->blocked = blocked;
 709
 710         if (device->offlinemode == TRUE)
 711                 return 0;
 712
 713         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 714
 715         if (blocked == FALSE)
 716                 powered = device->powered_persistent;
 717         else
 718                 powered = FALSE;
 719
 720         return set_powered(device, powered);
 721 }
 722
 723 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 724 {
 725         return device->blocked;
 726 }
 727
 728 int __connman_device_scan(struct connman_device *device)
 729 {
 730         if (!device->driver || !device->driver->scan)
 731                 return -EOPNOTSUPP;
 732
 733         if (device->powered == FALSE)
 734                 return -ENOLINK;
 735
 736         reset_scan_trigger(device);
 737
 738         return device->driver->scan(device);
 739 }
 740
 741 int __connman_device_enable_persistent(struct connman_device *device)
 742 {
 743         int err;
 744
 745         DBG("device %p", device);
 746
 747         device->powered_persistent = TRUE;
 748
 749         __connman_storage_save_device(device);
 750
 751         err = __connman_device_enable(device);
 752         if (err == 0 || err == -EINPROGRESS) {
 753                 device->offlinemode = FALSE;
 754                 if (__connman_profile_get_offlinemode() == TRUE) {
 755                         __connman_profile_set_offlinemode(FALSE, FALSE);
 756
 757                         __connman_profile_save_default();
 758                 }
 759         }
 760
 761         return err;
 762 }
 763
 764 int __connman_device_disable_persistent(struct connman_device *device)
 765 {
 766         DBG("device %p", device);
 767
 768         device->powered_persistent = FALSE;
 769
 770         __connman_storage_save_device(device);
 771
 772         return __connman_device_disable(device);
 773 }
 774
 775 int __connman_device_disconnect(struct connman_device *device)
 776 {
 777         GHashTableIter iter;
 778         gpointer key, value;
 779
 780         DBG("device %p", device);
 781
 782         connman_device_set_disconnected(device, TRUE);
 783
 784         g_hash_table_iter_init(&iter, device->networks);
 785
 786         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 787                 struct connman_network *network = value;
 788
 789                 if (connman_network_get_connecting(network) == TRUE) {
 790                         /*
 791                          * Skip network in the process of connecting.
 792                          * This is a workaround for WiFi networks serviced
 793                          * by the supplicant plugin that hold a reference
 794                          * to the network.  If we disconnect the network
 795                          * here then the referenced object will not be
 796                          * registered and usage (like launching DHCP client)
 797                          * will fail.  There is nothing to be gained by
 798                          * removing the network here anyway.
 799                          */
 800                         connman_warn("Skipping disconnect of %s, network is connecting.",
 801                                 connman_network_get_identifier(network));
 802                         continue;
 803                 }
 804
 805                 __connman_network_disconnect(network);
 806         }
 807
 808         return 0;
 809 }
 810
 811 static void mark_network_available(gpointer key, gpointer value,
 812                                                         gpointer user_data)
 813 {
 814         struct connman_network *network = value;
 815
 816         connman_network_set_available(network, TRUE);
 817 }
 818
 819 static void mark_network_unavailable(gpointer key, gpointer value,
 820                                                         gpointer user_data)
 821 {
 822         struct connman_network *network = value;
 823
 824         if (connman_network_get_connected(network) == TRUE)
 825                 return;
 826
 827         connman_network_set_available(network, FALSE);
 828 }
 829
 830 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 831                                                         gpointer user_data)
 832 {
 833         struct connman_network *network = value;
 834
 835         if (connman_network_get_connected(network) == TRUE)
 836                 return FALSE;
 837
 838         if (connman_network_get_available(network) == TRUE)
 839                 return FALSE;
 840
 841         return TRUE;
 842 }
 843
 844 void __connman_device_cleanup_networks(struct connman_device *device)
 845 {
 846         g_hash_table_foreach_remove(device->networks,
 847                                         remove_unavailable_network, NULL);
 848 }
 849
 850 connman_bool_t __connman_device_scanning(struct connman_device *device)
 851 {
 852         return device->scanning;
 853 }
 854
 855 void connman_device_reset_scanning(struct connman_device *device)
 856 {
 857         device->scanning = FALSE;
 858
 859         g_hash_table_foreach(device->networks,
 860                                 mark_network_available, NULL);
 861
 862 }
 863
 864 /**
 865  * connman_device_set_scanning:
 866  * @device: device structure
 867  * @scanning: scanning state
 868  *
 869  * Change scanning state of device
 870  */
 871 int connman_device_set_scanning(struct connman_device *device,
 872                                                 connman_bool_t scanning)
 873 {
 874         DBG("device %p scanning %d", device, scanning);
 875
 876         if (!device->driver || !device->driver->scan)
 877                 return -EINVAL;
 878
 879         if (device->scanning == scanning)
 880                 return -EALREADY;
 881
 882         device->scanning = scanning;
 883
 884         if (scanning == TRUE) {
 885                 reset_scan_trigger(device);
 886
 887                 g_hash_table_foreach(device->networks,
 888                                         mark_network_unavailable, NULL);
 889
 890                 return 0;
 891         }
 892
 893         __connman_device_cleanup_networks(device);
 894
 895         if (device->connections > 0)
 896                 return 0;
 897
 898         __connman_service_auto_connect();
 899
 900         return 0;
 901 }
 902
 903 /**
 904  * connman_device_set_disconnected:
 905  * @device: device structure
 906  * @disconnected: disconnected state
 907  *
 908  * Change disconnected state of device (only for device with networks)
 909  */
 910 int connman_device_set_disconnected(struct connman_device *device,
 911                                                 connman_bool_t disconnected)
 912 {
 913         DBG("device %p disconnected %d", device, disconnected);
 914
 915         if (device->disconnected == disconnected)
 916                 return -EALREADY;
 917
 918         device->disconnected = disconnected;
 919
 920         if (disconnected == TRUE)
 921                 force_scan_trigger(device);
 922
 923         return 0;
 924 }
 925
 926 /**
 927  * connman_device_get_disconnected:
 928  * @device: device structure
 929  *
 930  * Get device disconnected state
 931  */
 932 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 933 {
 934         return device->disconnected;
 935 }
 936
 937 /**
 938  * connman_device_set_string:
 939  * @device: device structure
 940  * @key: unique identifier
 941  * @value: string value
 942  *
 943  * Set string value for specific key
 944  */
 945 int connman_device_set_string(struct connman_device *device,
 946                                         const char *key, const char *value)
 947 {
 948         DBG("device %p key %s value %s", device, key, value);
 949
 950         if (g_str_equal(key, "Address") == TRUE) {
 951                 g_free(device->address);
 952                 device->address = g_strdup(value);
 953         } else if (g_str_equal(key, "Name") == TRUE) {
 954                 g_free(device->name);
 955                 device->name = g_strdup(value);
 956         } else if (g_str_equal(key, "Node") == TRUE) {
 957                 g_free(device->node);
 958                 device->node = g_strdup(value);
 959         } else if (g_str_equal(key, "Path") == TRUE) {
 960                 g_free(device->path);
 961                 device->path = g_strdup(value);
 962         } else {
 963                 return -EINVAL;
 964         }
 965
 966         return 0;
 967 }
 968
 969 /**
 970  * connman_device_get_string:
 971  * @device: device structure
 972  * @key: unique identifier
 973  *
 974  * Get string value for specific key
 975  */
 976 const char *connman_device_get_string(struct connman_device *device,
 977                                                         const char *key)
 978 {
 979         DBG("device %p key %s", device, key);
 980
 981         if (g_str_equal(key, "Address") == TRUE)
 982                 return device->address;
 983         else if (g_str_equal(key, "Name") == TRUE)
 984                 return device->name;
 985         else if (g_str_equal(key, "Node") == TRUE)
 986                 return device->node;
 987         else if (g_str_equal(key, "Interface") == TRUE)
 988                 return device->interface;
 989         else if (g_str_equal(key, "Path") == TRUE)
 990                 return device->path;
 991
 992         return NULL;
 993 }
 994
 995 static void set_offlinemode(struct connman_device *device,
 996                                 connman_bool_t offlinemode)
 997 {
 998         connman_bool_t powered;
 999
1000         DBG("device %p name %s", device, device->name);
1001
1002         if (device == NULL)
1003                 return;
1004
1005         device->offlinemode = offlinemode;
1006
1007         if (device->blocked == TRUE)
1008                 return;
1009
1010         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1011
1012         if (device->powered == powered)
1013                 return;
1014
1015         if (device->powered_persistent == FALSE)
1016                 powered = FALSE;
1017
1018         set_powered(device, powered);
1019 }
1020
1021 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1022 {
1023         GSList *list;
1024
1025         DBG("offlinmode %d", offlinemode);
1026
1027         for (list = device_list; list != NULL; list = list->next) {
1028                 struct connman_device *device = list->data;
1029
1030                 set_offlinemode(device, offlinemode);
1031         }
1032
1033         __connman_notifier_offlinemode(offlinemode);
1034
1035         return 0;
1036 }
1037
1038 void __connman_device_increase_connections(struct connman_device *device)
1039 {
1040         if (device == NULL)
1041                 return;
1042
1043         device->connections++;
1044 }
1045
1046 void __connman_device_decrease_connections(struct connman_device *device)
1047 {
1048         if (device == NULL)
1049                 return;
1050
1051         device->connections--;
1052
1053         if (device->connections == 0)
1054                 device->backoff_interval = SCAN_INITIAL_DELAY;
1055 }
1056
1057 /**
1058  * connman_device_add_network:
1059  * @device: device structure
1060  * @network: network structure
1061  *
1062  * Add new network to the device
1063  */
1064 int connman_device_add_network(struct connman_device *device,
1065                                         struct connman_network *network)
1066 {
1067         const char *identifier = connman_network_get_identifier(network);
1068
1069         DBG("device %p network %p", device, network);
1070
1071         if (identifier == NULL)
1072                 return -EINVAL;
1073
1074         connman_network_ref(network);
1075
1076         __connman_network_set_device(network, device);
1077
1078         g_hash_table_insert(device->networks, g_strdup(identifier),
1079                                                                 network);
1080
1081         return 0;
1082 }
1083
1084 /**
1085  * connman_device_get_network:
1086  * @device: device structure
1087  * @identifier: network identifier
1088  *
1089  * Get network for given identifier
1090  */
1091 struct connman_network *connman_device_get_network(struct connman_device *device,
1092                                                         const char *identifier)
1093 {
1094         DBG("device %p identifier %s", device, identifier);
1095
1096         return g_hash_table_lookup(device->networks, identifier);
1097 }
1098
1099 /**
1100  * connman_device_remove_network:
1101  * @device: device structure
1102  * @identifier: network identifier
1103  *
1104  * Remove network for given identifier
1105  */
1106 int connman_device_remove_network(struct connman_device *device,
1107                                                 struct connman_network *network)
1108 {
1109         struct connman_service *service;
1110         const char *identifier;
1111
1112         DBG("device %p network %p", device, network);
1113
1114         if (network == NULL)
1115                 return 0;
1116
1117         service = __connman_service_lookup_from_network(network);
1118
1119         identifier = connman_network_get_identifier(network);
1120         g_hash_table_remove(device->networks, identifier);
1121
1122         if (service != NULL)
1123                 __connman_service_reset_from_networks(service, device->networks);
1124
1125         return 0;
1126 }
1127
1128 void connman_device_remove_all_networks(struct connman_device *device)
1129 {
1130         g_hash_table_remove_all(device->networks);
1131 }
1132
1133 void __connman_device_set_network(struct connman_device *device,
1134                                         struct connman_network *network)
1135 {
1136         const char *name;
1137
1138         if (device == NULL)
1139                 return;
1140
1141         if (device->network == network)
1142                 return;
1143
1144         if (network != NULL) {
1145                 name = connman_network_get_string(network, "Name");
1146                 g_free(device->last_network);
1147                 device->last_network = g_strdup(name);
1148
1149                 device->network = network;
1150         } else {
1151                 g_free(device->last_network);
1152                 device->last_network = NULL;
1153
1154                 device->network = NULL;
1155         }
1156 }
1157
1158 void __connman_device_set_reconnect(struct connman_device *device,
1159                                                 connman_bool_t reconnect)
1160 {
1161         device->reconnect = reconnect;
1162 }
1163
1164 connman_bool_t  __connman_device_get_reconnect(
1165                                 struct connman_device *device)
1166 {
1167         return device->reconnect;
1168 }
1169
1170 static gboolean match_driver(struct connman_device *device,
1171                                         struct connman_device_driver *driver)
1172 {
1173         if (device->type == driver->type ||
1174                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1175                 return TRUE;
1176
1177         return FALSE;
1178 }
1179
1180 static int device_probe(struct connman_device *device)
1181 {
1182         GSList *list;
1183
1184         DBG("device %p name %s", device, device->name);
1185
1186         if (device->driver != NULL)
1187                 return -EALREADY;
1188
1189         for (list = driver_list; list; list = list->next) {
1190                 struct connman_device_driver *driver = list->data;
1191
1192                 if (match_driver(device, driver) == FALSE)
1193                         continue;
1194
1195                 DBG("driver %p name %s", driver, driver->name);
1196
1197                 if (driver->probe(device) == 0) {
1198                         device->driver = driver;
1199                         break;
1200                 }
1201         }
1202
1203         if (device->driver == NULL)
1204                 return 0;
1205
1206         return setup_device(device);
1207 }
1208
1209 static void device_remove(struct connman_device *device)
1210 {
1211         DBG("device %p name %s", device, device->name);
1212
1213         if (device->driver == NULL)
1214                 return;
1215
1216         remove_device(device);
1217 }
1218
1219 /**
1220  * connman_device_register:
1221  * @device: device structure
1222  *
1223  * Register device with the system
1224  */
1225 int connman_device_register(struct connman_device *device)
1226 {
1227         __connman_storage_load_device(device);
1228
1229         device->offlinemode = __connman_profile_get_offlinemode();
1230
1231         return device_probe(device);
1232 }
1233
1234 /**
1235  * connman_device_unregister:
1236  * @device: device structure
1237  *
1238  * Unregister device with the system
1239  */
1240 void connman_device_unregister(struct connman_device *device)
1241 {
1242         __connman_storage_save_device(device);
1243
1244         device_remove(device);
1245 }
1246
1247 /**
1248  * connman_device_get_data:
1249  * @device: device structure
1250  *
1251  * Get private device data pointer
1252  */
1253 void *connman_device_get_data(struct connman_device *device)
1254 {
1255         return device->driver_data;
1256 }
1257
1258 /**
1259  * connman_device_set_data:
1260  * @device: device structure
1261  * @data: data pointer
1262  *
1263  * Set private device data pointer
1264  */
1265 void connman_device_set_data(struct connman_device *device, void *data)
1266 {
1267         device->driver_data = data;
1268 }
1269
1270 struct connman_device *__connman_device_find_device(
1271                                 enum connman_service_type type)
1272 {
1273         GSList *list;
1274
1275         for (list = device_list; list != NULL; list = list->next) {
1276                 struct connman_device *device = list->data;
1277                 enum connman_service_type service_type =
1278                         __connman_device_get_service_type(device);
1279
1280                 if (service_type != type)
1281                         continue;
1282
1283                 return device;
1284         }
1285
1286         return NULL;
1287 }
1288
1289 int __connman_device_request_scan(enum connman_service_type type)
1290 {
1291         GSList *list;
1292         int err;
1293
1294         switch (type) {
1295         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1296         case CONNMAN_SERVICE_TYPE_SYSTEM:
1297         case CONNMAN_SERVICE_TYPE_ETHERNET:
1298         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1299         case CONNMAN_SERVICE_TYPE_CELLULAR:
1300         case CONNMAN_SERVICE_TYPE_GPS:
1301         case CONNMAN_SERVICE_TYPE_VPN:
1302         case CONNMAN_SERVICE_TYPE_GADGET:
1303                 return 0;
1304         case CONNMAN_SERVICE_TYPE_WIFI:
1305         case CONNMAN_SERVICE_TYPE_WIMAX:
1306                 break;
1307         }
1308
1309         for (list = device_list; list != NULL; list = list->next) {
1310                 struct connman_device *device = list->data;
1311                 enum connman_service_type service_type =
1312                         __connman_device_get_service_type(device);
1313
1314                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1315                                 service_type != type) {
1316                         continue;
1317                 }
1318
1319                 err = __connman_device_scan(device);
1320                 if (err < 0 && err != -EINPROGRESS) {
1321                         DBG("err %d", err);
1322                         /* XXX maybe only a continue? */
1323                         return err;
1324                 }
1325         }
1326
1327         return 0;
1328 }
1329
1330 static int set_technology(enum connman_service_type type, connman_bool_t enable)
1331 {
1332         GSList *list;
1333         int err;
1334
1335         DBG("type %d enable %d", type, enable);
1336
1337         switch (type) {
1338         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1339         case CONNMAN_SERVICE_TYPE_SYSTEM:
1340         case CONNMAN_SERVICE_TYPE_GPS:
1341         case CONNMAN_SERVICE_TYPE_VPN:
1342         case CONNMAN_SERVICE_TYPE_GADGET:
1343                 return 0;
1344         case CONNMAN_SERVICE_TYPE_ETHERNET:
1345         case CONNMAN_SERVICE_TYPE_WIFI:
1346         case CONNMAN_SERVICE_TYPE_WIMAX:
1347         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1348         case CONNMAN_SERVICE_TYPE_CELLULAR:
1349                 break;
1350         }
1351
1352         for (list = device_list; list != NULL; list = list->next) {
1353                 struct connman_device *device = list->data;
1354                 enum connman_service_type service_type =
1355                         __connman_device_get_service_type(device);
1356
1357                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1358                                 service_type != type) {
1359                         continue;
1360                 }
1361
1362                 if (enable == TRUE)
1363                         err = __connman_device_enable_persistent(device);
1364                 else
1365                         err = __connman_device_disable_persistent(device);
1366
1367                 if (err < 0 && err != -EINPROGRESS) {
1368                         DBG("err %d", err);
1369                         /* XXX maybe only a continue? */
1370                         return err;
1371                 }
1372         }
1373
1374         return 0;
1375 }
1376
1377 int __connman_device_enable_technology(enum connman_service_type type)
1378 {
1379         return set_technology(type, TRUE);
1380 }
1381
1382 int __connman_device_disable_technology(enum connman_service_type type)
1383 {
1384         return set_technology(type, FALSE);
1385 }
1386
1387 connman_bool_t __connman_device_isfiltered(const char *devname)
1388 {
1389         char **pattern;
1390
1391         if (device_filter == NULL)
1392                 goto nodevice;
1393
1394         for (pattern = device_filter; *pattern; pattern++) {
1395                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1396                         DBG("ignoring device %s (match)", devname);
1397                         return TRUE;
1398                 }
1399         }
1400
1401 nodevice:
1402         if (g_pattern_match_simple("dummy*", devname) == TRUE) {
1403                 DBG("ignoring dummy networking devices");
1404                 return TRUE;
1405         }
1406
1407         if (nodevice_filter == NULL)
1408                 return FALSE;
1409
1410         for (pattern = nodevice_filter; *pattern; pattern++) {
1411                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1412                         DBG("ignoring device %s (no match)", devname);
1413                         return TRUE;
1414                 }
1415         }
1416
1417         return FALSE;
1418 }
1419
1420 static int device_load(struct connman_device *device)
1421 {
1422         const char *ident = __connman_profile_active_ident();
1423         GKeyFile *keyfile;
1424         GError *error = NULL;
1425         gchar *identifier;
1426         connman_bool_t powered;
1427
1428         DBG("device %p", device);
1429
1430         keyfile = __connman_storage_open_profile(ident);
1431         if (keyfile == NULL)
1432                 return 0;
1433
1434         identifier = g_strdup_printf("device_%s", device->name);
1435         if (identifier == NULL)
1436                 goto done;
1437
1438         powered = g_key_file_get_boolean(keyfile, identifier,
1439                                                 "Powered", &error);
1440         if (error == NULL)
1441                 device->powered_persistent = powered;
1442         g_clear_error(&error);
1443
1444 done:
1445         g_free(identifier);
1446
1447         __connman_storage_close_profile(ident, keyfile, FALSE);
1448
1449         return 0;
1450 }
1451
1452 static int device_save(struct connman_device *device)
1453 {
1454         const char *ident = __connman_profile_active_ident();
1455         GKeyFile *keyfile;
1456         gchar *identifier;
1457
1458         DBG("device %p", device);
1459
1460         keyfile = __connman_storage_open_profile(ident);
1461         if (keyfile == NULL)
1462                 return 0;
1463
1464         identifier = g_strdup_printf("device_%s", device->name);
1465         if (identifier == NULL)
1466                 goto done;
1467
1468         g_key_file_set_boolean(keyfile, identifier,
1469                                         "Powered", device->powered_persistent);
1470
1471 done:
1472         g_free(identifier);
1473
1474         __connman_storage_close_profile(ident, keyfile, TRUE);
1475
1476         return 0;
1477 }
1478
1479 static struct connman_storage device_storage = {
1480         .name           = "device",
1481         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1482         .device_load    = device_load,
1483         .device_save    = device_save,
1484 };
1485
1486 int __connman_device_init(const char *device, const char *nodevice)
1487 {
1488         DBG("");
1489
1490         if (device != NULL)
1491                 device_filter = g_strsplit(device, ",", -1);
1492
1493         if (nodevice != NULL)
1494                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1495
1496         return connman_storage_register(&device_storage);
1497 }
1498
1499 void __connman_device_cleanup(void)
1500 {
1501         DBG("");
1502
1503         g_strfreev(nodevice_filter);
1504         g_strfreev(device_filter);
1505
1506         connman_storage_unregister(&device_storage);
1507 }