src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include <stdio.h>
  30 #include <sys/ioctl.h>
  31 #include <net/ethernet.h>
  32 #include <net/if.h>
  33
  34 #include "connman.h"
  35
  36 static GSList *device_list = NULL;
  37 static gchar **device_filter = NULL;
  38 static gchar **nodevice_filter = NULL;
  39
  40 enum connman_pending_type {
  41         PENDING_NONE    = 0,
  42         PENDING_ENABLE  = 1,
  43         PENDING_DISABLE = 2,
  44 };
  45
  46 struct connman_device {
  47         int refcount;
  48         enum connman_device_type type;
  49         enum connman_pending_type powered_pending;      /* Indicates a pending
  50                                                         enable/disable request */
  51         connman_bool_t powered;
  52         connman_bool_t scanning;
  53         connman_bool_t disconnected;
  54         connman_bool_t reconnect;
  55         char *name;
  56         char *node;
  57         char *address;
  58         char *interface;
  59         char *ident;
  60         char *path;
  61         char *devname;
  62         int index;
  63         guint pending_timeout;
  64
  65         struct connman_device_driver *driver;
  66         void *driver_data;
  67
  68         char *last_network;
  69         struct connman_network *network;
  70         GHashTable *networks;
  71 };
  72
  73 static void clear_pending_trigger(struct connman_device *device)
  74 {
  75         if (device->pending_timeout > 0) {
  76                 g_source_remove(device->pending_timeout);
  77                 device->pending_timeout = 0;
  78         }
  79 }
  80
  81 static const char *type2description(enum connman_device_type type)
  82 {
  83         switch (type) {
  84         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  85         case CONNMAN_DEVICE_TYPE_VENDOR:
  86                 break;
  87         case CONNMAN_DEVICE_TYPE_ETHERNET:
  88                 return "Ethernet";
  89         case CONNMAN_DEVICE_TYPE_WIFI:
  90                 return "Wireless";
  91         case CONNMAN_DEVICE_TYPE_WIMAX:
  92                 return "WiMAX";
  93         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  94                 return "Bluetooth";
  95         case CONNMAN_DEVICE_TYPE_GPS:
  96                 return "GPS";
  97         case CONNMAN_DEVICE_TYPE_CELLULAR:
  98                 return "Cellular";
  99         case CONNMAN_DEVICE_TYPE_GADGET:
 100                 return "Gadget";
 101
 102         }
 103
 104         return NULL;
 105 }
 106
 107 static const char *type2string(enum connman_device_type type)
 108 {
 109         switch (type) {
 110         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 111         case CONNMAN_DEVICE_TYPE_VENDOR:
 112                 break;
 113         case CONNMAN_DEVICE_TYPE_ETHERNET:
 114                 return "ethernet";
 115         case CONNMAN_DEVICE_TYPE_WIFI:
 116                 return "wifi";
 117         case CONNMAN_DEVICE_TYPE_WIMAX:
 118                 return "wimax";
 119         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 120                 return "bluetooth";
 121         case CONNMAN_DEVICE_TYPE_GPS:
 122                 return "gps";
 123         case CONNMAN_DEVICE_TYPE_CELLULAR:
 124                 return "cellular";
 125         case CONNMAN_DEVICE_TYPE_GADGET:
 126                 return "gadget";
 127
 128         }
 129
 130         return NULL;
 131 }
 132
 133 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 134 {
 135         enum connman_device_type type = connman_device_get_type(device);
 136
 137         switch (type) {
 138         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 139         case CONNMAN_DEVICE_TYPE_VENDOR:
 140         case CONNMAN_DEVICE_TYPE_GPS:
 141                 break;
 142         case CONNMAN_DEVICE_TYPE_ETHERNET:
 143                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 144         case CONNMAN_DEVICE_TYPE_WIFI:
 145                 return CONNMAN_SERVICE_TYPE_WIFI;
 146         case CONNMAN_DEVICE_TYPE_WIMAX:
 147                 return CONNMAN_SERVICE_TYPE_WIMAX;
 148         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 149                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 150         case CONNMAN_DEVICE_TYPE_CELLULAR:
 151                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 152         case CONNMAN_DEVICE_TYPE_GADGET:
 153                 return CONNMAN_SERVICE_TYPE_GADGET;
 154
 155         }
 156
 157         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 158 }
 159
 160 static gboolean device_pending_reset(gpointer user_data)
 161 {
 162         struct connman_device *device = user_data;
 163
 164         DBG("device %p", device);
 165
 166         /* Power request timedout, reset power pending state. */
 167         device->pending_timeout = 0;
 168         device->powered_pending = PENDING_NONE;
 169
 170         return FALSE;
 171 }
 172
 173 int __connman_device_enable(struct connman_device *device)
 174 {
 175         int err;
 176
 177         DBG("device %p", device);
 178
 179         if (!device->driver || !device->driver->enable)
 180                 return -EOPNOTSUPP;
 181
 182         /* There is an ongoing power disable request. */
 183         if (device->powered_pending == PENDING_DISABLE)
 184                 return -EBUSY;
 185
 186         if (device->powered_pending == PENDING_ENABLE)
 187                 return -EALREADY;
 188
 189         if (device->powered_pending == PENDING_NONE && device->powered == TRUE)
 190                 return -EALREADY;
 191
 192         device->powered_pending = PENDING_ENABLE;
 193
 194         err = device->driver->enable(device);
 195         /*
 196          * device gets enabled right away.
 197          * Invoke the callback
 198          */
 199         if (err == 0) {
 200                 connman_device_set_powered(device, TRUE);
 201                 goto done;
 202         }
 203
 204         if (err == -EALREADY) {
 205                 /* If device is already powered, but connman is not updated */
 206                 connman_device_set_powered(device, TRUE);
 207                 goto done;
 208         }
 209         /*
 210          * if err == -EINPROGRESS, then the DBus call to the respective daemon
 211          * was successful. We set a 4 sec timeout so if the daemon never
 212          * returns a reply, we would reset the pending request.
 213          */
 214         if (err == -EINPROGRESS)
 215                 device->pending_timeout = g_timeout_add_seconds(4,
 216                                         device_pending_reset, device);
 217 done:
 218         return err;
 219 }
 220
 221 int __connman_device_disable(struct connman_device *device)
 222 {
 223         int err;
 224
 225         DBG("device %p", device);
 226
 227         if (!device->driver || !device->driver->disable)
 228                 return -EOPNOTSUPP;
 229
 230         /* Ongoing power enable request */
 231         if (device->powered_pending == PENDING_ENABLE)
 232                 return -EBUSY;
 233
 234         if (device->powered_pending == PENDING_DISABLE)
 235                 return -EALREADY;
 236
 237         if (device->powered_pending == PENDING_NONE && device->powered == FALSE)
 238                 return -EALREADY;
 239
 240         device->powered_pending = PENDING_DISABLE;
 241         device->reconnect = FALSE;
 242
 243         if (device->network) {
 244                 struct connman_service *service =
 245                         connman_service_lookup_from_network(device->network);
 246
 247                 if (service != NULL)
 248                         __connman_service_disconnect(service);
 249                 else
 250                         connman_network_set_connected(device->network, FALSE);
 251         }
 252
 253         err = device->driver->disable(device);
 254         if (err == 0 || err == -EALREADY) {
 255                 connman_device_set_powered(device, FALSE);
 256                 goto done;
 257         }
 258
 259         if (err == -EINPROGRESS)
 260                 device->pending_timeout = g_timeout_add_seconds(4,
 261                                         device_pending_reset, device);
 262 done:
 263         return err;
 264 }
 265
 266 static void probe_driver(struct connman_device_driver *driver)
 267 {
 268         GSList *list;
 269
 270         DBG("driver %p name %s", driver, driver->name);
 271
 272         for (list = device_list; list != NULL; list = list->next) {
 273                 struct connman_device *device = list->data;
 274
 275                 if (device->driver != NULL)
 276                         continue;
 277
 278                 if (driver->type != device->type)
 279                         continue;
 280
 281                 if (driver->probe(device) < 0)
 282                         continue;
 283
 284                 device->driver = driver;
 285
 286                 __connman_technology_add_device(device);
 287         }
 288 }
 289
 290 static void remove_device(struct connman_device *device)
 291 {
 292         DBG("device %p", device);
 293
 294         __connman_device_disable(device);
 295
 296         __connman_technology_remove_device(device);
 297
 298         if (device->driver->remove)
 299                 device->driver->remove(device);
 300
 301         device->driver = NULL;
 302 }
 303
 304 static void remove_driver(struct connman_device_driver *driver)
 305 {
 306         GSList *list;
 307
 308         DBG("driver %p name %s", driver, driver->name);
 309
 310         for (list = device_list; list != NULL; list = list->next) {
 311                 struct connman_device *device = list->data;
 312
 313                 if (device->driver == driver)
 314                         remove_device(device);
 315         }
 316 }
 317
 318 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 319 {
 320         if (device == NULL || device->driver == NULL)
 321                 return FALSE;
 322
 323         return TRUE;
 324 }
 325
 326 static GSList *driver_list = NULL;
 327
 328 static gint compare_priority(gconstpointer a, gconstpointer b)
 329 {
 330         const struct connman_device_driver *driver1 = a;
 331         const struct connman_device_driver *driver2 = b;
 332
 333         return driver2->priority - driver1->priority;
 334 }
 335
 336 /**
 337  * connman_device_driver_register:
 338  * @driver: device driver definition
 339  *
 340  * Register a new device driver
 341  *
 342  * Returns: %0 on success
 343  */
 344 int connman_device_driver_register(struct connman_device_driver *driver)
 345 {
 346         DBG("driver %p name %s", driver, driver->name);
 347
 348         driver_list = g_slist_insert_sorted(driver_list, driver,
 349                                                         compare_priority);
 350         probe_driver(driver);
 351
 352         return 0;
 353 }
 354
 355 /**
 356  * connman_device_driver_unregister:
 357  * @driver: device driver definition
 358  *
 359  * Remove a previously registered device driver
 360  */
 361 void connman_device_driver_unregister(struct connman_device_driver *driver)
 362 {
 363         DBG("driver %p name %s", driver, driver->name);
 364
 365         driver_list = g_slist_remove(driver_list, driver);
 366
 367         remove_driver(driver);
 368 }
 369
 370 static void free_network(gpointer data)
 371 {
 372         struct connman_network *network = data;
 373
 374         DBG("network %p", network);
 375
 376         __connman_network_set_device(network, NULL);
 377
 378         connman_network_unref(network);
 379 }
 380
 381 static void device_destruct(struct connman_device *device)
 382 {
 383         DBG("device %p name %s", device, device->name);
 384
 385         clear_pending_trigger(device);
 386
 387         g_free(device->ident);
 388         g_free(device->node);
 389         g_free(device->name);
 390         g_free(device->address);
 391         g_free(device->interface);
 392         g_free(device->path);
 393         g_free(device->devname);
 394
 395         g_free(device->last_network);
 396
 397         g_hash_table_destroy(device->networks);
 398         device->networks = NULL;
 399
 400         g_free(device);
 401 }
 402
 403 /**
 404  * connman_device_create:
 405  * @node: device node name (for example an address)
 406  * @type: device type
 407  *
 408  * Allocate a new device of given #type and assign the #node name to it.
 409  *
 410  * Returns: a newly-allocated #connman_device structure
 411  */
 412 struct connman_device *connman_device_create(const char *node,
 413                                                 enum connman_device_type type)
 414 {
 415         struct connman_device *device;
 416
 417         DBG("node %s type %d", node, type);
 418
 419         device = g_try_new0(struct connman_device, 1);
 420         if (device == NULL)
 421                 return NULL;
 422
 423         DBG("device %p", device);
 424
 425         device->refcount = 1;
 426
 427         device->type = type;
 428         device->name = g_strdup(type2description(device->type));
 429
 430         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 431                                                 g_free, free_network);
 432
 433         device_list = g_slist_prepend(device_list, device);
 434
 435         return device;
 436 }
 437
 438 /**
 439  * connman_device_ref:
 440  * @device: device structure
 441  *
 442  * Increase reference counter of device
 443  */
 444 struct connman_device *connman_device_ref_debug(struct connman_device *device,
 445                                 const char *file, int line, const char *caller)
 446 {
 447         DBG("%p ref %d by %s:%d:%s()", device, device->refcount + 1,
 448                 file, line, caller);
 449
 450         __sync_fetch_and_add(&device->refcount, 1);
 451
 452         return device;
 453 }
 454
 455 /**
 456  * connman_device_unref:
 457  * @device: device structure
 458  *
 459  * Decrease reference counter of device
 460  */
 461 void connman_device_unref_debug(struct connman_device *device,
 462                                 const char *file, int line, const char *caller)
 463 {
 464         DBG("%p ref %d by %s:%d:%s()", device, device->refcount - 1,
 465                 file, line, caller);
 466
 467         if (__sync_fetch_and_sub(&device->refcount, 1) != 1)
 468                 return;
 469
 470         if (device->driver) {
 471                 device->driver->remove(device);
 472                 device->driver = NULL;
 473         }
 474
 475         device_list = g_slist_remove(device_list, device);
 476
 477         device_destruct(device);
 478 }
 479
 480 const char *__connman_device_get_type(struct connman_device *device)
 481 {
 482         return type2string(device->type);
 483 }
 484
 485 /**
 486  * connman_device_get_type:
 487  * @device: device structure
 488  *
 489  * Get type of device
 490  */
 491 enum connman_device_type connman_device_get_type(struct connman_device *device)
 492 {
 493         return device->type;
 494 }
 495
 496 /**
 497  * connman_device_set_index:
 498  * @device: device structure
 499  * @index: index number
 500  *
 501  * Set index number of device
 502  */
 503 void connman_device_set_index(struct connman_device *device, int index)
 504 {
 505         device->index = index;
 506 }
 507
 508 /**
 509  * connman_device_get_index:
 510  * @device: device structure
 511  *
 512  * Get index number of device
 513  */
 514 int connman_device_get_index(struct connman_device *device)
 515 {
 516         return device->index;
 517 }
 518
 519 /**
 520  * connman_device_set_interface:
 521  * @device: device structure
 522  * @interface: interface name
 523  *
 524  * Set interface name of device
 525  */
 526 void connman_device_set_interface(struct connman_device *device,
 527                                                 const char *interface)
 528 {
 529         g_free(device->devname);
 530         device->devname = g_strdup(interface);
 531
 532         g_free(device->interface);
 533         device->interface = g_strdup(interface);
 534
 535         if (device->name == NULL) {
 536                 const char *str = type2description(device->type);
 537                 if (str != NULL && device->interface != NULL)
 538                         device->name = g_strdup_printf("%s (%s)", str,
 539                                                         device->interface);
 540         }
 541 }
 542
 543 /**
 544  * connman_device_set_ident:
 545  * @device: device structure
 546  * @ident: unique identifier
 547  *
 548  * Set unique identifier of device
 549  */
 550 void connman_device_set_ident(struct connman_device *device,
 551                                                         const char *ident)
 552 {
 553         g_free(device->ident);
 554         device->ident = g_strdup(ident);
 555 }
 556
 557 const char *connman_device_get_ident(struct connman_device *device)
 558 {
 559         return device->ident;
 560 }
 561
 562 /**
 563  * connman_device_set_powered:
 564  * @device: device structure
 565  * @powered: powered state
 566  *
 567  * Change power state of device
 568  */
 569 int connman_device_set_powered(struct connman_device *device,
 570                                                 connman_bool_t powered)
 571 {
 572         enum connman_service_type type;
 573
 574         DBG("driver %p powered %d", device, powered);
 575
 576         if (device->powered == powered)
 577                 return -EALREADY;
 578
 579         clear_pending_trigger(device);
 580
 581         device->powered_pending = PENDING_NONE;
 582
 583         device->powered = powered;
 584
 585         type = __connman_device_get_service_type(device);
 586
 587         if (device->powered == FALSE) {
 588                 __connman_technology_disabled(type);
 589                 return 0;
 590         }
 591
 592         __connman_technology_enabled(type);
 593
 594         connman_device_set_disconnected(device, FALSE);
 595         device->scanning = FALSE;
 596
 597         if (device->driver && device->driver->scan)
 598                 device->driver->scan(device, NULL, 0, NULL, NULL, NULL);
 599
 600         return 0;
 601 }
 602
 603 connman_bool_t connman_device_get_powered(struct connman_device *device)
 604 {
 605         return device->powered;
 606 }
 607
 608 static int device_scan(struct connman_device *device)
 609 {
 610         if (!device->driver || !device->driver->scan)
 611                 return -EOPNOTSUPP;
 612
 613         if (device->powered == FALSE)
 614                 return -ENOLINK;
 615
 616         return device->driver->scan(device, NULL, 0, NULL, NULL, NULL);
 617 }
 618
 619 int __connman_device_disconnect(struct connman_device *device)
 620 {
 621         GHashTableIter iter;
 622         gpointer key, value;
 623
 624         DBG("device %p", device);
 625
 626         connman_device_set_disconnected(device, TRUE);
 627
 628         g_hash_table_iter_init(&iter, device->networks);
 629
 630         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 631                 struct connman_network *network = value;
 632
 633                 if (connman_network_get_connecting(network) == TRUE) {
 634                         /*
 635                          * Skip network in the process of connecting.
 636                          * This is a workaround for WiFi networks serviced
 637                          * by the supplicant plugin that hold a reference
 638                          * to the network.  If we disconnect the network
 639                          * here then the referenced object will not be
 640                          * registered and usage (like launching DHCP client)
 641                          * will fail.  There is nothing to be gained by
 642                          * removing the network here anyway.
 643                          */
 644                         connman_warn("Skipping disconnect of %s, network is connecting.",
 645                                 connman_network_get_identifier(network));
 646                         continue;
 647                 }
 648
 649                 __connman_network_disconnect(network);
 650         }
 651
 652         return 0;
 653 }
 654
 655 static void mark_network_available(gpointer key, gpointer value,
 656                                                         gpointer user_data)
 657 {
 658         struct connman_network *network = value;
 659
 660         connman_network_set_available(network, TRUE);
 661 }
 662
 663 static void mark_network_unavailable(gpointer key, gpointer value,
 664                                                         gpointer user_data)
 665 {
 666         struct connman_network *network = value;
 667
 668         if (connman_network_get_connected(network) == TRUE ||
 669                         connman_network_get_connecting(network) == TRUE)
 670                 return;
 671
 672         connman_network_set_available(network, FALSE);
 673 }
 674
 675 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 676                                                         gpointer user_data)
 677 {
 678         struct connman_network *network = value;
 679
 680         if (connman_network_get_connected(network) == TRUE)
 681                 return FALSE;
 682
 683         if (connman_network_get_available(network) == TRUE)
 684                 return FALSE;
 685
 686         return TRUE;
 687 }
 688
 689 void __connman_device_cleanup_networks(struct connman_device *device)
 690 {
 691         g_hash_table_foreach_remove(device->networks,
 692                                         remove_unavailable_network, NULL);
 693 }
 694
 695 connman_bool_t connman_device_get_scanning(struct connman_device *device)
 696 {
 697         return device->scanning;
 698 }
 699
 700 void connman_device_reset_scanning(struct connman_device *device)
 701 {
 702         g_hash_table_foreach(device->networks,
 703                                 mark_network_available, NULL);
 704 }
 705
 706 /**
 707  * connman_device_set_scanning:
 708  * @device: device structure
 709  * @scanning: scanning state
 710  *
 711  * Change scanning state of device
 712  */
 713 int connman_device_set_scanning(struct connman_device *device,
 714                                                 connman_bool_t scanning)
 715 {
 716         DBG("device %p scanning %d", device, scanning);
 717
 718         if (!device->driver || !device->driver->scan)
 719                 return -EINVAL;
 720
 721         if (device->scanning == scanning)
 722                 return -EALREADY;
 723
 724         device->scanning = scanning;
 725
 726         if (scanning == TRUE) {
 727                 __connman_technology_scan_started(device);
 728
 729                 g_hash_table_foreach(device->networks,
 730                                         mark_network_unavailable, NULL);
 731
 732                 return 0;
 733         }
 734
 735         __connman_device_cleanup_networks(device);
 736
 737         __connman_technology_scan_stopped(device);
 738
 739         __connman_service_auto_connect();
 740
 741         return 0;
 742 }
 743
 744 /**
 745  * connman_device_set_disconnected:
 746  * @device: device structure
 747  * @disconnected: disconnected state
 748  *
 749  * Change disconnected state of device (only for device with networks)
 750  */
 751 int connman_device_set_disconnected(struct connman_device *device,
 752                                                 connman_bool_t disconnected)
 753 {
 754         DBG("device %p disconnected %d", device, disconnected);
 755
 756         if (device->disconnected == disconnected)
 757                 return -EALREADY;
 758
 759         device->disconnected = disconnected;
 760
 761         return 0;
 762 }
 763
 764 /**
 765  * connman_device_get_disconnected:
 766  * @device: device structure
 767  *
 768  * Get device disconnected state
 769  */
 770 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 771 {
 772         return device->disconnected;
 773 }
 774
 775 /**
 776  * connman_device_set_string:
 777  * @device: device structure
 778  * @key: unique identifier
 779  * @value: string value
 780  *
 781  * Set string value for specific key
 782  */
 783 int connman_device_set_string(struct connman_device *device,
 784                                         const char *key, const char *value)
 785 {
 786         DBG("device %p key %s value %s", device, key, value);
 787
 788         if (g_str_equal(key, "Address") == TRUE) {
 789                 g_free(device->address);
 790                 device->address = g_strdup(value);
 791         } else if (g_str_equal(key, "Name") == TRUE) {
 792                 g_free(device->name);
 793                 device->name = g_strdup(value);
 794         } else if (g_str_equal(key, "Node") == TRUE) {
 795                 g_free(device->node);
 796                 device->node = g_strdup(value);
 797         } else if (g_str_equal(key, "Path") == TRUE) {
 798                 g_free(device->path);
 799                 device->path = g_strdup(value);
 800         } else {
 801                 return -EINVAL;
 802         }
 803
 804         return 0;
 805 }
 806
 807 /**
 808  * connman_device_get_string:
 809  * @device: device structure
 810  * @key: unique identifier
 811  *
 812  * Get string value for specific key
 813  */
 814 const char *connman_device_get_string(struct connman_device *device,
 815                                                         const char *key)
 816 {
 817         DBG("device %p key %s", device, key);
 818
 819         if (g_str_equal(key, "Address") == TRUE)
 820                 return device->address;
 821         else if (g_str_equal(key, "Name") == TRUE)
 822                 return device->name;
 823         else if (g_str_equal(key, "Node") == TRUE)
 824                 return device->node;
 825         else if (g_str_equal(key, "Interface") == TRUE)
 826                 return device->interface;
 827         else if (g_str_equal(key, "Path") == TRUE)
 828                 return device->path;
 829
 830         return NULL;
 831 }
 832
 833 /**
 834  * connman_device_add_network:
 835  * @device: device structure
 836  * @network: network structure
 837  *
 838  * Add new network to the device
 839  */
 840 int connman_device_add_network(struct connman_device *device,
 841                                         struct connman_network *network)
 842 {
 843         const char *identifier = connman_network_get_identifier(network);
 844
 845         DBG("device %p network %p", device, network);
 846
 847         if (identifier == NULL)
 848                 return -EINVAL;
 849
 850         connman_network_ref(network);
 851
 852         __connman_network_set_device(network, device);
 853
 854         g_hash_table_replace(device->networks, g_strdup(identifier),
 855                                                                 network);
 856
 857         return 0;
 858 }
 859
 860 /**
 861  * connman_device_get_network:
 862  * @device: device structure
 863  * @identifier: network identifier
 864  *
 865  * Get network for given identifier
 866  */
 867 struct connman_network *connman_device_get_network(struct connman_device *device,
 868                                                         const char *identifier)
 869 {
 870         DBG("device %p identifier %s", device, identifier);
 871
 872         return g_hash_table_lookup(device->networks, identifier);
 873 }
 874
 875 /**
 876  * connman_device_remove_network:
 877  * @device: device structure
 878  * @identifier: network identifier
 879  *
 880  * Remove network for given identifier
 881  */
 882 int connman_device_remove_network(struct connman_device *device,
 883                                                 struct connman_network *network)
 884 {
 885         const char *identifier;
 886
 887         DBG("device %p network %p", device, network);
 888
 889         if (network == NULL)
 890                 return 0;
 891
 892         identifier = connman_network_get_identifier(network);
 893         g_hash_table_remove(device->networks, identifier);
 894
 895         return 0;
 896 }
 897
 898 void connman_device_remove_all_networks(struct connman_device *device)
 899 {
 900         g_hash_table_remove_all(device->networks);
 901 }
 902
 903 void __connman_device_set_network(struct connman_device *device,
 904                                         struct connman_network *network)
 905 {
 906         const char *name;
 907
 908         if (device == NULL)
 909                 return;
 910
 911         if (device->network == network)
 912                 return;
 913
 914         if (network != NULL) {
 915                 name = connman_network_get_string(network, "Name");
 916                 g_free(device->last_network);
 917                 device->last_network = g_strdup(name);
 918
 919                 device->network = network;
 920         } else {
 921                 g_free(device->last_network);
 922                 device->last_network = NULL;
 923
 924                 device->network = NULL;
 925         }
 926 }
 927
 928 void __connman_device_set_reconnect(struct connman_device *device,
 929                                                 connman_bool_t reconnect)
 930 {
 931         device->reconnect = reconnect;
 932 }
 933
 934 connman_bool_t  __connman_device_get_reconnect(
 935                                 struct connman_device *device)
 936 {
 937         return device->reconnect;
 938 }
 939
 940 static gboolean match_driver(struct connman_device *device,
 941                                         struct connman_device_driver *driver)
 942 {
 943         if (device->type == driver->type ||
 944                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 945                 return TRUE;
 946
 947         return FALSE;
 948 }
 949
 950 /**
 951  * connman_device_register:
 952  * @device: device structure
 953  *
 954  * Register device with the system
 955  */
 956 int connman_device_register(struct connman_device *device)
 957 {
 958         GSList *list;
 959
 960         DBG("device %p name %s", device, device->name);
 961
 962         if (device->driver != NULL)
 963                 return -EALREADY;
 964
 965         for (list = driver_list; list; list = list->next) {
 966                 struct connman_device_driver *driver = list->data;
 967
 968                 if (match_driver(device, driver) == FALSE)
 969                         continue;
 970
 971                 DBG("driver %p name %s", driver, driver->name);
 972
 973                 if (driver->probe(device) == 0) {
 974                         device->driver = driver;
 975                         break;
 976                 }
 977         }
 978
 979         if (device->driver == NULL)
 980                 return 0;
 981
 982         return __connman_technology_add_device(device);
 983 }
 984
 985 /**
 986  * connman_device_unregister:
 987  * @device: device structure
 988  *
 989  * Unregister device with the system
 990  */
 991 void connman_device_unregister(struct connman_device *device)
 992 {
 993         DBG("device %p name %s", device, device->name);
 994
 995         if (device->driver == NULL)
 996                 return;
 997
 998         remove_device(device);
 999 }
1000
1001 /**
1002  * connman_device_get_data:
1003  * @device: device structure
1004  *
1005  * Get private device data pointer
1006  */
1007 void *connman_device_get_data(struct connman_device *device)
1008 {
1009         return device->driver_data;
1010 }
1011
1012 /**
1013  * connman_device_set_data:
1014  * @device: device structure
1015  * @data: data pointer
1016  *
1017  * Set private device data pointer
1018  */
1019 void connman_device_set_data(struct connman_device *device, void *data)
1020 {
1021         device->driver_data = data;
1022 }
1023
1024 struct connman_device *__connman_device_find_device(
1025                                 enum connman_service_type type)
1026 {
1027         GSList *list;
1028
1029         for (list = device_list; list != NULL; list = list->next) {
1030                 struct connman_device *device = list->data;
1031                 enum connman_service_type service_type =
1032                         __connman_device_get_service_type(device);
1033
1034                 if (service_type != type)
1035                         continue;
1036
1037                 return device;
1038         }
1039
1040         return NULL;
1041 }
1042
1043 /**
1044  * connman_device_set_regdom
1045  * @device: device structure
1046  * @alpha2: string representing regulatory domain
1047  *
1048  * Set regulatory domain on device basis
1049  */
1050 int connman_device_set_regdom(struct connman_device *device,
1051                                                 const char *alpha2)
1052 {
1053         if (device->driver == NULL || device->driver->set_regdom == NULL)
1054                 return -ENOTSUP;
1055
1056         if (device->powered == FALSE)
1057                 return -EINVAL;
1058
1059         return device->driver->set_regdom(device, alpha2);
1060 }
1061
1062 /**
1063  * connman_device_regdom_notify
1064  * @device: device structure
1065  * @alpha2: string representing regulatory domain
1066  *
1067  * Notify on setting regulatory domain on device basis
1068  */
1069 void connman_device_regdom_notify(struct connman_device *device,
1070                                         int result, const char *alpha2)
1071 {
1072         __connman_technology_notify_regdom_by_device(device, result, alpha2);
1073 }
1074
1075 int __connman_device_request_scan(enum connman_service_type type)
1076 {
1077         connman_bool_t success = FALSE;
1078         int last_err = -ENOSYS;
1079         GSList *list;
1080         int err;
1081
1082         switch (type) {
1083         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1084         case CONNMAN_SERVICE_TYPE_SYSTEM:
1085         case CONNMAN_SERVICE_TYPE_ETHERNET:
1086         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1087         case CONNMAN_SERVICE_TYPE_CELLULAR:
1088         case CONNMAN_SERVICE_TYPE_GPS:
1089         case CONNMAN_SERVICE_TYPE_VPN:
1090         case CONNMAN_SERVICE_TYPE_GADGET:
1091                 return -EOPNOTSUPP;
1092         case CONNMAN_SERVICE_TYPE_WIFI:
1093         case CONNMAN_SERVICE_TYPE_WIMAX:
1094                 break;
1095         }
1096
1097         for (list = device_list; list != NULL; list = list->next) {
1098                 struct connman_device *device = list->data;
1099                 enum connman_service_type service_type =
1100                         __connman_device_get_service_type(device);
1101
1102                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1103                                 service_type != type) {
1104                         continue;
1105                 }
1106
1107                 err = device_scan(device);
1108                 if (err == 0 || err == -EALREADY || err == -EINPROGRESS) {
1109                         success = TRUE;
1110                 } else {
1111                         last_err = err;
1112                         DBG("device %p err %d", device, err);
1113                 }
1114         }
1115
1116         if (success == TRUE)
1117                 return 0;
1118
1119         return last_err;
1120 }
1121
1122 int __connman_device_request_hidden_scan(struct connman_device *device,
1123                                 const char *ssid, unsigned int ssid_len,
1124                                 const char *identity, const char *passphrase,
1125                                 void *user_data)
1126 {
1127         DBG("device %p", device);
1128
1129         if (device == NULL || device->driver == NULL ||
1130                         device->driver->scan == NULL)
1131                 return -EINVAL;
1132
1133         if (device->scanning == TRUE)
1134                 return -EALREADY;
1135
1136         return device->driver->scan(device, ssid, ssid_len,
1137                                         identity, passphrase, user_data);
1138 }
1139
1140 static char *index2ident(int index, const char *prefix)
1141 {
1142         struct ifreq ifr;
1143         struct ether_addr eth;
1144         char *str;
1145         int sk, err, len;
1146
1147         if (index < 0)
1148                 return NULL;
1149
1150         sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1151         if (sk < 0)
1152                 return NULL;
1153
1154         memset(&ifr, 0, sizeof(ifr));
1155         ifr.ifr_ifindex = index;
1156
1157         err = ioctl(sk, SIOCGIFNAME, &ifr);
1158
1159         if (err == 0)
1160                 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
1161
1162         close(sk);
1163
1164         if (err < 0)
1165                 return NULL;
1166
1167         len = prefix ? strlen(prefix) + 18 : 18;
1168
1169         str = malloc(len);
1170         if (!str)
1171                 return NULL;
1172
1173         memcpy(&eth, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
1174         snprintf(str, len, "%s%02x%02x%02x%02x%02x%02x",
1175                                                 prefix ? prefix : "",
1176                                                 eth.ether_addr_octet[0],
1177                                                 eth.ether_addr_octet[1],
1178                                                 eth.ether_addr_octet[2],
1179                                                 eth.ether_addr_octet[3],
1180                                                 eth.ether_addr_octet[4],
1181                                                 eth.ether_addr_octet[5]);
1182
1183         return str;
1184 }
1185
1186 static char *index2addr(int index)
1187 {
1188         struct ifreq ifr;
1189         struct ether_addr eth;
1190         char *str;
1191         int sk, err;
1192
1193         if (index < 0)
1194                 return NULL;
1195
1196         sk = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0);
1197         if (sk < 0)
1198                 return NULL;
1199
1200         memset(&ifr, 0, sizeof(ifr));
1201         ifr.ifr_ifindex = index;
1202
1203         err = ioctl(sk, SIOCGIFNAME, &ifr);
1204
1205         if (err == 0)
1206                 err = ioctl(sk, SIOCGIFHWADDR, &ifr);
1207
1208         close(sk);
1209
1210         if (err < 0)
1211                 return NULL;
1212
1213         str = malloc(18);
1214         if (!str)
1215                 return NULL;
1216
1217         memcpy(&eth, &ifr.ifr_hwaddr.sa_data, sizeof(eth));
1218         snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
1219                                                 eth.ether_addr_octet[0],
1220                                                 eth.ether_addr_octet[1],
1221                                                 eth.ether_addr_octet[2],
1222                                                 eth.ether_addr_octet[3],
1223                                                 eth.ether_addr_octet[4],
1224                                                 eth.ether_addr_octet[5]);
1225
1226         return str;
1227 }
1228
1229 struct connman_device *connman_device_create_from_index(int index)
1230 {
1231         enum connman_device_type type;
1232         struct connman_device *device;
1233         char *devname, *ident = NULL;
1234         char *addr = NULL, *name = NULL;
1235
1236         if (index < 0)
1237                 return NULL;
1238
1239         devname = connman_inet_ifname(index);
1240         if (devname == NULL)
1241                 return NULL;
1242
1243         if (__connman_device_isfiltered(devname) == TRUE) {
1244                 connman_info("Ignoring interface %s (filtered)", devname);
1245                 g_free(devname);
1246                 return NULL;
1247         }
1248
1249         type = __connman_rtnl_get_device_type(index);
1250
1251         switch (type) {
1252         case CONNMAN_DEVICE_TYPE_UNKNOWN:
1253                 connman_info("Ignoring interface %s (type unknown)", devname);
1254                 g_free(devname);
1255                 return NULL;
1256         case CONNMAN_DEVICE_TYPE_ETHERNET:
1257         case CONNMAN_DEVICE_TYPE_GADGET:
1258         case CONNMAN_DEVICE_TYPE_WIFI:
1259         case CONNMAN_DEVICE_TYPE_WIMAX:
1260                 name = index2ident(index, "");
1261                 addr = index2addr(index);
1262                 break;
1263         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
1264         case CONNMAN_DEVICE_TYPE_CELLULAR:
1265         case CONNMAN_DEVICE_TYPE_GPS:
1266         case CONNMAN_DEVICE_TYPE_VENDOR:
1267                 name = strdup(devname);
1268                 break;
1269         }
1270
1271         device = connman_device_create(name, type);
1272         if (device == NULL)
1273                 goto done;
1274
1275         switch (type) {
1276         case CONNMAN_DEVICE_TYPE_UNKNOWN:
1277         case CONNMAN_DEVICE_TYPE_VENDOR:
1278         case CONNMAN_DEVICE_TYPE_GPS:
1279                 break;
1280         case CONNMAN_DEVICE_TYPE_ETHERNET:
1281         case CONNMAN_DEVICE_TYPE_GADGET:
1282                 ident = index2ident(index, NULL);
1283                 break;
1284         case CONNMAN_DEVICE_TYPE_WIFI:
1285         case CONNMAN_DEVICE_TYPE_WIMAX:
1286                 ident = index2ident(index, NULL);
1287                 break;
1288         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
1289                 break;
1290         case CONNMAN_DEVICE_TYPE_CELLULAR:
1291                 ident = index2ident(index, NULL);
1292                 break;
1293         }
1294
1295         connman_device_set_index(device, index);
1296         connman_device_set_interface(device, devname);
1297
1298         if (ident != NULL) {
1299                 connman_device_set_ident(device, ident);
1300                 g_free(ident);
1301         }
1302
1303         connman_device_set_string(device, "Address", addr);
1304
1305 done:
1306         g_free(devname);
1307         g_free(name);
1308         g_free(addr);
1309
1310         return device;
1311 }
1312
1313 connman_bool_t __connman_device_isfiltered(const char *devname)
1314 {
1315         char **pattern;
1316         char **blacklisted_interfaces;
1317
1318         if (device_filter == NULL)
1319                 goto nodevice;
1320
1321         for (pattern = device_filter; *pattern; pattern++) {
1322                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1323                         DBG("ignoring device %s (match)", devname);
1324                         return TRUE;
1325                 }
1326         }
1327
1328 nodevice:
1329         if (g_pattern_match_simple("dummy*", devname) == TRUE) {
1330                 DBG("ignoring dummy networking devices");
1331                 return TRUE;
1332         }
1333
1334         if (nodevice_filter == NULL)
1335                 goto list;
1336
1337         for (pattern = nodevice_filter; *pattern; pattern++) {
1338                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1339                         DBG("ignoring device %s (no match)", devname);
1340                         return TRUE;
1341                 }
1342         }
1343
1344 list:
1345         blacklisted_interfaces =
1346                 connman_setting_get_string_list("NetworkInterfaceBlacklist");
1347         if (blacklisted_interfaces == NULL)
1348                 return FALSE;
1349
1350         for (pattern = blacklisted_interfaces; *pattern; pattern++) {
1351                 if (g_str_has_prefix(devname, *pattern) == TRUE) {
1352                         DBG("ignoring device %s (blacklist)", devname);
1353                         return TRUE;
1354                 }
1355         }
1356
1357         return FALSE;
1358 }
1359
1360 static void cleanup_devices(void)
1361 {
1362         /*
1363          * Check what interfaces are currently up and if connman is
1364          * suppose to handle the interface, then cleanup the mess
1365          * related to that interface. There might be weird routes etc
1366          * that are related to that interface and that might confuse
1367          * connmand. So in this case we just turn the interface down
1368          * so that kernel removes routes/addresses automatically and
1369          * then proceed the startup.
1370          *
1371          * Note that this cleanup must be done before rtnl/detect code
1372          * has activated interface watches.
1373          */
1374
1375         char **interfaces;
1376         int i;
1377
1378         interfaces = __connman_inet_get_running_interfaces();
1379
1380         if (interfaces == NULL)
1381                 return;
1382
1383         for (i = 0; interfaces[i] != NULL; i++) {
1384                 connman_bool_t filtered;
1385                 int index;
1386
1387                 filtered = __connman_device_isfiltered(interfaces[i]);
1388                 if (filtered == TRUE)
1389                         continue;
1390
1391                 index = connman_inet_ifindex(interfaces[i]);
1392                 if (index < 0)
1393                         continue;
1394
1395                 DBG("cleaning up %s index %d", interfaces[i], index);
1396
1397                 connman_inet_ifdown(index);
1398
1399                 /*
1400                  * ConnMan will turn the interface UP automatically so
1401                  * no need to do it here.
1402                  */
1403         }
1404
1405         g_strfreev(interfaces);
1406 }
1407
1408 int __connman_device_init(const char *device, const char *nodevice)
1409 {
1410         DBG("");
1411
1412         if (device != NULL)
1413                 device_filter = g_strsplit(device, ",", -1);
1414
1415         if (nodevice != NULL)
1416                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1417
1418         cleanup_devices();
1419
1420         return 0;
1421 }
1422
1423 void __connman_device_cleanup(void)
1424 {
1425         DBG("");
1426
1427         g_strfreev(nodevice_filter);
1428         g_strfreev(device_filter);
1429 }