src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include "connman.h"
  30
  31 static GSList *device_list = NULL;
  32 static gchar **device_filter = NULL;
  33 static gchar **nodevice_filter = NULL;
  34
  35 enum connman_pending_type {
  36         PENDING_NONE    = 0,
  37         PENDING_ENABLE  = 1,
  38         PENDING_DISABLE = 2,
  39 };
  40
  41 struct connman_device {
  42         int refcount;
  43         enum connman_device_type type;
  44         enum connman_pending_type powered_pending;      /* Indicates a pending
  45                                                         enable/disable request */
  46         connman_bool_t powered;
  47         connman_bool_t scanning;
  48         connman_bool_t disconnected;
  49         connman_bool_t reconnect;
  50         connman_uint16_t scan_interval;
  51         connman_uint16_t backoff_interval;
  52         char *name;
  53         char *node;
  54         char *address;
  55         char *interface;
  56         char *ident;
  57         char *path;
  58         char *devname;
  59         int phyindex;
  60         int index;
  61         guint scan_timeout;
  62         guint pending_timeout;
  63
  64         struct connman_device_driver *driver;
  65         void *driver_data;
  66
  67         char *last_network;
  68         struct connman_network *network;
  69         GHashTable *networks;
  70 };
  71
  72 #define SCAN_INITIAL_DELAY 10
  73
  74 static gboolean device_scan_trigger(gpointer user_data)
  75 {
  76         struct connman_device *device = user_data;
  77
  78         DBG("device %p", device);
  79
  80         if (device->driver == NULL) {
  81                 device->scan_timeout = 0;
  82                 return FALSE;
  83         }
  84
  85         if (device->driver->scan)
  86                 device->driver->scan(device);
  87
  88         return TRUE;
  89 }
  90
  91 static void clear_scan_trigger(struct connman_device *device)
  92 {
  93         if (device->scan_timeout > 0) {
  94                 g_source_remove(device->scan_timeout);
  95                 device->scan_timeout = 0;
  96         }
  97 }
  98
  99 static void clear_pending_trigger(struct connman_device *device)
 100 {
 101         if (device->pending_timeout > 0) {
 102                 g_source_remove(device->pending_timeout);
 103                 device->pending_timeout = 0;
 104         }
 105 }
 106
 107 static void reset_scan_trigger(struct connman_device *device)
 108 {
 109         clear_scan_trigger(device);
 110
 111         if (device->scan_interval > 0) {
 112                 guint interval;
 113
 114                 if (g_hash_table_size(device->networks) == 0) {
 115                         if (device->backoff_interval >= device->scan_interval)
 116                                 device->backoff_interval = SCAN_INITIAL_DELAY;
 117                         interval = device->backoff_interval;
 118                 } else
 119                         interval = device->scan_interval;
 120
 121                 DBG("interval %d", interval);
 122
 123                 device->scan_timeout = g_timeout_add_seconds(interval,
 124                                         device_scan_trigger, device);
 125
 126                 device->backoff_interval *= 2;
 127                 if (device->backoff_interval > device->scan_interval)
 128                         device->backoff_interval = device->scan_interval;
 129         }
 130 }
 131
 132 static void force_scan_trigger(struct connman_device *device)
 133 {
 134         clear_scan_trigger(device);
 135
 136         device->scan_timeout = g_timeout_add_seconds(5,
 137                                         device_scan_trigger, device);
 138 }
 139
 140 static const char *type2description(enum connman_device_type type)
 141 {
 142         switch (type) {
 143         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 144         case CONNMAN_DEVICE_TYPE_VENDOR:
 145                 break;
 146         case CONNMAN_DEVICE_TYPE_ETHERNET:
 147                 return "Ethernet";
 148         case CONNMAN_DEVICE_TYPE_WIFI:
 149                 return "Wireless";
 150         case CONNMAN_DEVICE_TYPE_WIMAX:
 151                 return "WiMAX";
 152         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 153                 return "Bluetooth";
 154         case CONNMAN_DEVICE_TYPE_GPS:
 155                 return "GPS";
 156         case CONNMAN_DEVICE_TYPE_CELLULAR:
 157                 return "Cellular";
 158         case CONNMAN_DEVICE_TYPE_GADGET:
 159                 return "Gadget";
 160
 161         }
 162
 163         return NULL;
 164 }
 165
 166 static const char *type2string(enum connman_device_type type)
 167 {
 168         switch (type) {
 169         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 170         case CONNMAN_DEVICE_TYPE_VENDOR:
 171                 break;
 172         case CONNMAN_DEVICE_TYPE_ETHERNET:
 173                 return "ethernet";
 174         case CONNMAN_DEVICE_TYPE_WIFI:
 175                 return "wifi";
 176         case CONNMAN_DEVICE_TYPE_WIMAX:
 177                 return "wimax";
 178         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 179                 return "bluetooth";
 180         case CONNMAN_DEVICE_TYPE_GPS:
 181                 return "gps";
 182         case CONNMAN_DEVICE_TYPE_CELLULAR:
 183                 return "cellular";
 184         case CONNMAN_DEVICE_TYPE_GADGET:
 185                 return "gadget";
 186
 187         }
 188
 189         return NULL;
 190 }
 191
 192 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 193 {
 194         enum connman_device_type type = connman_device_get_type(device);
 195
 196         switch (type) {
 197         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 198         case CONNMAN_DEVICE_TYPE_VENDOR:
 199         case CONNMAN_DEVICE_TYPE_GPS:
 200                 break;
 201         case CONNMAN_DEVICE_TYPE_ETHERNET:
 202                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 203         case CONNMAN_DEVICE_TYPE_WIFI:
 204                 return CONNMAN_SERVICE_TYPE_WIFI;
 205         case CONNMAN_DEVICE_TYPE_WIMAX:
 206                 return CONNMAN_SERVICE_TYPE_WIMAX;
 207         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 208                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 209         case CONNMAN_DEVICE_TYPE_CELLULAR:
 210                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 211         case CONNMAN_DEVICE_TYPE_GADGET:
 212                 return CONNMAN_SERVICE_TYPE_GADGET;
 213
 214         }
 215
 216         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 217 }
 218
 219 static gboolean device_pending_reset(gpointer user_data)
 220 {
 221         struct connman_device *device = user_data;
 222
 223         DBG("device %p", device);
 224
 225         /* Power request timedout, reset power pending state. */
 226         device->pending_timeout = 0;
 227         device->powered_pending = PENDING_NONE;
 228
 229         return FALSE;
 230 }
 231
 232 int __connman_device_enable(struct connman_device *device)
 233 {
 234         int err;
 235
 236         DBG("device %p", device);
 237
 238         if (!device->driver || !device->driver->enable)
 239                 return -EOPNOTSUPP;
 240
 241         /* There is an ongoing power disable request. */
 242         if (device->powered_pending == PENDING_DISABLE)
 243                 return -EBUSY;
 244
 245         if (device->powered_pending == PENDING_ENABLE)
 246                 return -EALREADY;
 247
 248         if (device->powered_pending == PENDING_NONE && device->powered == TRUE)
 249                 return -EALREADY;
 250
 251         device->powered_pending = PENDING_ENABLE;
 252
 253         err = device->driver->enable(device);
 254         /*
 255          * device gets enabled right away.
 256          * Invoke the callback
 257          */
 258         if (err == 0) {
 259                 connman_device_set_powered(device, TRUE);
 260                 goto done;
 261         }
 262
 263         if (err == -EALREADY) {
 264                 /* If device is already powered, but connman is not updated */
 265                 connman_device_set_powered(device, TRUE);
 266                 goto done;
 267         }
 268         /*
 269          * if err == -EINPROGRESS, then the DBus call to the respective daemon
 270          * was successful. We set a 4 sec timeout so if the daemon never
 271          * returns a reply, we would reset the pending request.
 272          */
 273         if (err == -EINPROGRESS)
 274                 device->pending_timeout = g_timeout_add_seconds(4,
 275                                         device_pending_reset, device);
 276 done:
 277         return err;
 278 }
 279
 280 int __connman_device_disable(struct connman_device *device)
 281 {
 282         int err;
 283
 284         DBG("device %p", device);
 285
 286         if (!device->driver || !device->driver->disable)
 287                 return -EOPNOTSUPP;
 288
 289         /* Ongoing power enable request */
 290         if (device->powered_pending == PENDING_ENABLE)
 291                 return -EBUSY;
 292
 293         if (device->powered_pending == PENDING_DISABLE)
 294                 return -EALREADY;
 295
 296         if (device->powered_pending == PENDING_NONE && device->powered == FALSE)
 297                 return -EALREADY;
 298
 299         device->powered_pending = PENDING_DISABLE;
 300         device->reconnect = FALSE;
 301
 302         clear_scan_trigger(device);
 303
 304         if (device->network) {
 305                 struct connman_service *service =
 306                         __connman_service_lookup_from_network(device->network);
 307
 308                 if (service != NULL)
 309                         __connman_service_disconnect(service);
 310                 else
 311                         connman_network_set_connected(device->network, FALSE);
 312         }
 313
 314         err = device->driver->disable(device);
 315         if (err == 0) {
 316                 connman_device_set_powered(device, FALSE);
 317                 goto done;
 318         }
 319
 320         if (err == -EALREADY) {
 321                 connman_device_set_powered(device, FALSE);
 322                 goto done;
 323         }
 324
 325         if (err == -EINPROGRESS)
 326                 device->pending_timeout = g_timeout_add_seconds(4,
 327                                         device_pending_reset, device);
 328 done:
 329         return err;
 330 }
 331
 332 static void probe_driver(struct connman_device_driver *driver)
 333 {
 334         GSList *list;
 335
 336         DBG("driver %p name %s", driver, driver->name);
 337
 338         for (list = device_list; list != NULL; list = list->next) {
 339                 struct connman_device *device = list->data;
 340
 341                 if (device->driver != NULL)
 342                         continue;
 343
 344                 if (driver->type != device->type)
 345                         continue;
 346
 347                 if (driver->probe(device) < 0)
 348                         continue;
 349
 350                 device->driver = driver;
 351
 352                 __connman_technology_add_device(device);
 353         }
 354 }
 355
 356 static void remove_device(struct connman_device *device)
 357 {
 358         DBG("device %p", device);
 359
 360         __connman_device_disable(device);
 361
 362         __connman_technology_remove_device(device);
 363
 364         if (device->driver->remove)
 365                 device->driver->remove(device);
 366
 367         device->driver = NULL;
 368 }
 369
 370 static void remove_driver(struct connman_device_driver *driver)
 371 {
 372         GSList *list;
 373
 374         DBG("driver %p name %s", driver, driver->name);
 375
 376         for (list = device_list; list != NULL; list = list->next) {
 377                 struct connman_device *device = list->data;
 378
 379                 if (device->driver == driver)
 380                         remove_device(device);
 381         }
 382 }
 383
 384 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 385 {
 386         if (device == NULL || device->driver == NULL)
 387                 return FALSE;
 388
 389         return TRUE;
 390 }
 391
 392 static GSList *driver_list = NULL;
 393
 394 static gint compare_priority(gconstpointer a, gconstpointer b)
 395 {
 396         const struct connman_device_driver *driver1 = a;
 397         const struct connman_device_driver *driver2 = b;
 398
 399         return driver2->priority - driver1->priority;
 400 }
 401
 402 /**
 403  * connman_device_driver_register:
 404  * @driver: device driver definition
 405  *
 406  * Register a new device driver
 407  *
 408  * Returns: %0 on success
 409  */
 410 int connman_device_driver_register(struct connman_device_driver *driver)
 411 {
 412         DBG("driver %p name %s", driver, driver->name);
 413
 414         driver_list = g_slist_insert_sorted(driver_list, driver,
 415                                                         compare_priority);
 416         probe_driver(driver);
 417
 418         return 0;
 419 }
 420
 421 /**
 422  * connman_device_driver_unregister:
 423  * @driver: device driver definition
 424  *
 425  * Remove a previously registered device driver
 426  */
 427 void connman_device_driver_unregister(struct connman_device_driver *driver)
 428 {
 429         DBG("driver %p name %s", driver, driver->name);
 430
 431         driver_list = g_slist_remove(driver_list, driver);
 432
 433         remove_driver(driver);
 434 }
 435
 436 static void free_network(gpointer data)
 437 {
 438         struct connman_network *network = data;
 439
 440         DBG("network %p", network);
 441
 442         __connman_network_set_device(network, NULL);
 443
 444         connman_network_unref(network);
 445 }
 446
 447 static void device_destruct(struct connman_device *device)
 448 {
 449         DBG("device %p name %s", device, device->name);
 450
 451         clear_pending_trigger(device);
 452         clear_scan_trigger(device);
 453
 454         g_free(device->ident);
 455         g_free(device->node);
 456         g_free(device->name);
 457         g_free(device->address);
 458         g_free(device->interface);
 459         g_free(device->path);
 460         g_free(device->devname);
 461
 462         g_free(device->last_network);
 463
 464         g_hash_table_destroy(device->networks);
 465         device->networks = NULL;
 466
 467         g_free(device);
 468 }
 469
 470 /**
 471  * connman_device_create:
 472  * @node: device node name (for example an address)
 473  * @type: device type
 474  *
 475  * Allocate a new device of given #type and assign the #node name to it.
 476  *
 477  * Returns: a newly-allocated #connman_device structure
 478  */
 479 struct connman_device *connman_device_create(const char *node,
 480                                                 enum connman_device_type type)
 481 {
 482         struct connman_device *device;
 483         connman_bool_t bg_scan;
 484
 485         DBG("node %s type %d", node, type);
 486
 487         device = g_try_new0(struct connman_device, 1);
 488         if (device == NULL)
 489                 return NULL;
 490
 491         DBG("device %p", device);
 492
 493         device->refcount = 1;
 494
 495         bg_scan = connman_setting_get_bool("BackgroundScanning");
 496
 497         device->type = type;
 498         device->name = g_strdup(type2description(device->type));
 499
 500         device->phyindex = -1;
 501
 502         device->backoff_interval = SCAN_INITIAL_DELAY;
 503
 504         switch (type) {
 505         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 506         case CONNMAN_DEVICE_TYPE_ETHERNET:
 507         case CONNMAN_DEVICE_TYPE_WIMAX:
 508         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 509         case CONNMAN_DEVICE_TYPE_CELLULAR:
 510         case CONNMAN_DEVICE_TYPE_GPS:
 511         case CONNMAN_DEVICE_TYPE_GADGET:
 512         case CONNMAN_DEVICE_TYPE_VENDOR:
 513                 device->scan_interval = 0;
 514                 break;
 515         case CONNMAN_DEVICE_TYPE_WIFI:
 516                 if (bg_scan == TRUE)
 517                         device->scan_interval = 300;
 518                 else
 519                         device->scan_interval = 0;
 520                 break;
 521         }
 522
 523         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 524                                                 g_free, free_network);
 525
 526         device_list = g_slist_append(device_list, device);
 527
 528         return device;
 529 }
 530
 531 /**
 532  * connman_device_ref:
 533  * @device: device structure
 534  *
 535  * Increase reference counter of device
 536  */
 537 struct connman_device *connman_device_ref_debug(struct connman_device *device,
 538                                 const char *file, int line, const char *caller)
 539 {
 540         DBG("%p ref %d by %s:%d:%s()", device, device->refcount + 1,
 541                 file, line, caller);
 542
 543         __sync_fetch_and_add(&device->refcount, 1);
 544
 545         return device;
 546 }
 547
 548 /**
 549  * connman_device_unref:
 550  * @device: device structure
 551  *
 552  * Decrease reference counter of device
 553  */
 554 void connman_device_unref_debug(struct connman_device *device,
 555                                 const char *file, int line, const char *caller)
 556 {
 557         DBG("%p ref %d by %s:%d:%s()", device, device->refcount - 1,
 558                 file, line, caller);
 559
 560         if (__sync_fetch_and_sub(&device->refcount, 1) != 1)
 561                 return;
 562
 563         if (device->driver) {
 564                 device->driver->remove(device);
 565                 device->driver = NULL;
 566         }
 567
 568         device_list = g_slist_remove(device_list, device);
 569
 570         device_destruct(device);
 571 }
 572
 573 const char *__connman_device_get_type(struct connman_device *device)
 574 {
 575         return type2string(device->type);
 576 }
 577
 578 /**
 579  * connman_device_get_type:
 580  * @device: device structure
 581  *
 582  * Get type of device
 583  */
 584 enum connman_device_type connman_device_get_type(struct connman_device *device)
 585 {
 586         return device->type;
 587 }
 588
 589 /**
 590  * connman_device_set_index:
 591  * @device: device structure
 592  * @index: index number
 593  *
 594  * Set index number of device
 595  */
 596 void connman_device_set_index(struct connman_device *device, int index)
 597 {
 598         device->index = index;
 599 }
 600
 601 /**
 602  * connman_device_get_index:
 603  * @device: device structure
 604  *
 605  * Get index number of device
 606  */
 607 int connman_device_get_index(struct connman_device *device)
 608 {
 609         return device->index;
 610 }
 611
 612 int __connman_device_get_phyindex(struct connman_device *device)
 613 {
 614         return device->phyindex;
 615 }
 616
 617 void __connman_device_set_phyindex(struct connman_device *device,
 618                                                         int phyindex)
 619 {
 620         device->phyindex = phyindex;
 621 }
 622
 623 /**
 624  * connman_device_set_interface:
 625  * @device: device structure
 626  * @interface: interface name
 627  *
 628  * Set interface name of device
 629  */
 630 void connman_device_set_interface(struct connman_device *device,
 631                                                 const char *interface)
 632 {
 633         g_free(device->devname);
 634         device->devname = g_strdup(interface);
 635
 636         g_free(device->interface);
 637         device->interface = g_strdup(interface);
 638
 639         if (device->name == NULL) {
 640                 const char *str = type2description(device->type);
 641                 if (str != NULL && device->interface != NULL)
 642                         device->name = g_strdup_printf("%s (%s)", str,
 643                                                         device->interface);
 644         }
 645 }
 646
 647 /**
 648  * connman_device_set_ident:
 649  * @device: device structure
 650  * @ident: unique identifier
 651  *
 652  * Set unique identifier of device
 653  */
 654 void connman_device_set_ident(struct connman_device *device,
 655                                                         const char *ident)
 656 {
 657         g_free(device->ident);
 658         device->ident = g_strdup(ident);
 659 }
 660
 661 const char *connman_device_get_ident(struct connman_device *device)
 662 {
 663         return device->ident;
 664 }
 665
 666 /**
 667  * connman_device_set_powered:
 668  * @device: device structure
 669  * @powered: powered state
 670  *
 671  * Change power state of device
 672  */
 673 int connman_device_set_powered(struct connman_device *device,
 674                                                 connman_bool_t powered)
 675 {
 676         enum connman_service_type type;
 677
 678         DBG("driver %p powered %d", device, powered);
 679
 680         if (device->powered == powered)
 681                 return -EALREADY;
 682
 683         clear_pending_trigger(device);
 684
 685         device->powered_pending = PENDING_NONE;
 686
 687         device->powered = powered;
 688
 689         type = __connman_device_get_service_type(device);
 690
 691         if (device->powered == TRUE)
 692                 __connman_technology_enabled(type);
 693         else
 694                 __connman_technology_disabled(type);
 695
 696         if (powered == FALSE)
 697                 return 0;
 698
 699         connman_device_set_disconnected(device, FALSE);
 700         device->scanning = FALSE;
 701
 702         reset_scan_trigger(device);
 703
 704         if (device->driver && device->driver->scan_fast)
 705                 device->driver->scan_fast(device);
 706         else if (device->driver && device->driver->scan)
 707                 device->driver->scan(device);
 708
 709         return 0;
 710 }
 711
 712 static int device_scan(struct connman_device *device)
 713 {
 714         if (!device->driver || !device->driver->scan)
 715                 return -EOPNOTSUPP;
 716
 717         if (device->powered == FALSE)
 718                 return -ENOLINK;
 719
 720         reset_scan_trigger(device);
 721
 722         return device->driver->scan(device);
 723 }
 724
 725 int __connman_device_disconnect(struct connman_device *device)
 726 {
 727         GHashTableIter iter;
 728         gpointer key, value;
 729
 730         DBG("device %p", device);
 731
 732         connman_device_set_disconnected(device, TRUE);
 733
 734         g_hash_table_iter_init(&iter, device->networks);
 735
 736         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 737                 struct connman_network *network = value;
 738
 739                 if (connman_network_get_connecting(network) == TRUE) {
 740                         /*
 741                          * Skip network in the process of connecting.
 742                          * This is a workaround for WiFi networks serviced
 743                          * by the supplicant plugin that hold a reference
 744                          * to the network.  If we disconnect the network
 745                          * here then the referenced object will not be
 746                          * registered and usage (like launching DHCP client)
 747                          * will fail.  There is nothing to be gained by
 748                          * removing the network here anyway.
 749                          */
 750                         connman_warn("Skipping disconnect of %s, network is connecting.",
 751                                 connman_network_get_identifier(network));
 752                         continue;
 753                 }
 754
 755                 __connman_network_disconnect(network);
 756         }
 757
 758         return 0;
 759 }
 760
 761 static void mark_network_available(gpointer key, gpointer value,
 762                                                         gpointer user_data)
 763 {
 764         struct connman_network *network = value;
 765
 766         connman_network_set_available(network, TRUE);
 767 }
 768
 769 static void mark_network_unavailable(gpointer key, gpointer value,
 770                                                         gpointer user_data)
 771 {
 772         struct connman_network *network = value;
 773
 774         if (connman_network_get_connected(network) == TRUE)
 775                 return;
 776
 777         connman_network_set_available(network, FALSE);
 778 }
 779
 780 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 781                                                         gpointer user_data)
 782 {
 783         struct connman_network *network = value;
 784
 785         if (connman_network_get_connected(network) == TRUE)
 786                 return FALSE;
 787
 788         if (connman_network_get_available(network) == TRUE)
 789                 return FALSE;
 790
 791         return TRUE;
 792 }
 793
 794 void __connman_device_cleanup_networks(struct connman_device *device)
 795 {
 796         g_hash_table_foreach_remove(device->networks,
 797                                         remove_unavailable_network, NULL);
 798 }
 799
 800 connman_bool_t __connman_device_scanning(struct connman_device *device)
 801 {
 802         return device->scanning;
 803 }
 804
 805 void connman_device_reset_scanning(struct connman_device *device)
 806 {
 807         device->scanning = FALSE;
 808
 809         g_hash_table_foreach(device->networks,
 810                                 mark_network_available, NULL);
 811
 812 }
 813
 814 /**
 815  * connman_device_set_scanning:
 816  * @device: device structure
 817  * @scanning: scanning state
 818  *
 819  * Change scanning state of device
 820  */
 821 int connman_device_set_scanning(struct connman_device *device,
 822                                                 connman_bool_t scanning)
 823 {
 824         DBG("device %p scanning %d", device, scanning);
 825
 826         if (!device->driver || !device->driver->scan)
 827                 return -EINVAL;
 828
 829         if (device->scanning == scanning)
 830                 return -EALREADY;
 831
 832         device->scanning = scanning;
 833
 834         if (scanning == TRUE) {
 835                 __connman_technology_scan_started(device);
 836
 837                 reset_scan_trigger(device);
 838
 839                 g_hash_table_foreach(device->networks,
 840                                         mark_network_unavailable, NULL);
 841
 842                 return 0;
 843         }
 844
 845         __connman_device_cleanup_networks(device);
 846
 847         __connman_technology_scan_stopped(device);
 848
 849         __connman_service_auto_connect();
 850
 851         return 0;
 852 }
 853
 854 /**
 855  * connman_device_set_disconnected:
 856  * @device: device structure
 857  * @disconnected: disconnected state
 858  *
 859  * Change disconnected state of device (only for device with networks)
 860  */
 861 int connman_device_set_disconnected(struct connman_device *device,
 862                                                 connman_bool_t disconnected)
 863 {
 864         DBG("device %p disconnected %d", device, disconnected);
 865
 866         if (device->disconnected == disconnected)
 867                 return -EALREADY;
 868
 869         device->disconnected = disconnected;
 870
 871         if (disconnected == TRUE)
 872         {
 873                 force_scan_trigger(device);
 874                 device->backoff_interval = SCAN_INITIAL_DELAY;
 875         }
 876
 877         return 0;
 878 }
 879
 880 /**
 881  * connman_device_get_disconnected:
 882  * @device: device structure
 883  *
 884  * Get device disconnected state
 885  */
 886 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 887 {
 888         return device->disconnected;
 889 }
 890
 891 /**
 892  * connman_device_set_string:
 893  * @device: device structure
 894  * @key: unique identifier
 895  * @value: string value
 896  *
 897  * Set string value for specific key
 898  */
 899 int connman_device_set_string(struct connman_device *device,
 900                                         const char *key, const char *value)
 901 {
 902         DBG("device %p key %s value %s", device, key, value);
 903
 904         if (g_str_equal(key, "Address") == TRUE) {
 905                 g_free(device->address);
 906                 device->address = g_strdup(value);
 907         } else if (g_str_equal(key, "Name") == TRUE) {
 908                 g_free(device->name);
 909                 device->name = g_strdup(value);
 910         } else if (g_str_equal(key, "Node") == TRUE) {
 911                 g_free(device->node);
 912                 device->node = g_strdup(value);
 913         } else if (g_str_equal(key, "Path") == TRUE) {
 914                 g_free(device->path);
 915                 device->path = g_strdup(value);
 916         } else {
 917                 return -EINVAL;
 918         }
 919
 920         return 0;
 921 }
 922
 923 /**
 924  * connman_device_get_string:
 925  * @device: device structure
 926  * @key: unique identifier
 927  *
 928  * Get string value for specific key
 929  */
 930 const char *connman_device_get_string(struct connman_device *device,
 931                                                         const char *key)
 932 {
 933         DBG("device %p key %s", device, key);
 934
 935         if (g_str_equal(key, "Address") == TRUE)
 936                 return device->address;
 937         else if (g_str_equal(key, "Name") == TRUE)
 938                 return device->name;
 939         else if (g_str_equal(key, "Node") == TRUE)
 940                 return device->node;
 941         else if (g_str_equal(key, "Interface") == TRUE)
 942                 return device->interface;
 943         else if (g_str_equal(key, "Path") == TRUE)
 944                 return device->path;
 945
 946         return NULL;
 947 }
 948
 949 /**
 950  * connman_device_add_network:
 951  * @device: device structure
 952  * @network: network structure
 953  *
 954  * Add new network to the device
 955  */
 956 int connman_device_add_network(struct connman_device *device,
 957                                         struct connman_network *network)
 958 {
 959         const char *identifier = connman_network_get_identifier(network);
 960
 961         DBG("device %p network %p", device, network);
 962
 963         if (identifier == NULL)
 964                 return -EINVAL;
 965
 966         connman_network_ref(network);
 967
 968         __connman_network_set_device(network, device);
 969
 970         g_hash_table_replace(device->networks, g_strdup(identifier),
 971                                                                 network);
 972
 973         return 0;
 974 }
 975
 976 /**
 977  * connman_device_get_network:
 978  * @device: device structure
 979  * @identifier: network identifier
 980  *
 981  * Get network for given identifier
 982  */
 983 struct connman_network *connman_device_get_network(struct connman_device *device,
 984                                                         const char *identifier)
 985 {
 986         DBG("device %p identifier %s", device, identifier);
 987
 988         return g_hash_table_lookup(device->networks, identifier);
 989 }
 990
 991 /**
 992  * connman_device_remove_network:
 993  * @device: device structure
 994  * @identifier: network identifier
 995  *
 996  * Remove network for given identifier
 997  */
 998 int connman_device_remove_network(struct connman_device *device,
 999                                                 struct connman_network *network)
1000 {
1001         const char *identifier;
1002
1003         DBG("device %p network %p", device, network);
1004
1005         if (network == NULL)
1006                 return 0;
1007
1008         identifier = connman_network_get_identifier(network);
1009         g_hash_table_remove(device->networks, identifier);
1010
1011         return 0;
1012 }
1013
1014 void connman_device_remove_all_networks(struct connman_device *device)
1015 {
1016         g_hash_table_remove_all(device->networks);
1017 }
1018
1019 void __connman_device_set_network(struct connman_device *device,
1020                                         struct connman_network *network)
1021 {
1022         const char *name;
1023
1024         if (device == NULL)
1025                 return;
1026
1027         if (device->network == network)
1028                 return;
1029
1030         if (network != NULL) {
1031                 name = connman_network_get_string(network, "Name");
1032                 g_free(device->last_network);
1033                 device->last_network = g_strdup(name);
1034
1035                 device->network = network;
1036         } else {
1037                 g_free(device->last_network);
1038                 device->last_network = NULL;
1039
1040                 device->network = NULL;
1041         }
1042 }
1043
1044 void __connman_device_set_reconnect(struct connman_device *device,
1045                                                 connman_bool_t reconnect)
1046 {
1047         device->reconnect = reconnect;
1048 }
1049
1050 connman_bool_t  __connman_device_get_reconnect(
1051                                 struct connman_device *device)
1052 {
1053         return device->reconnect;
1054 }
1055
1056 static gboolean match_driver(struct connman_device *device,
1057                                         struct connman_device_driver *driver)
1058 {
1059         if (device->type == driver->type ||
1060                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1061                 return TRUE;
1062
1063         return FALSE;
1064 }
1065
1066 /**
1067  * connman_device_register:
1068  * @device: device structure
1069  *
1070  * Register device with the system
1071  */
1072 int connman_device_register(struct connman_device *device)
1073 {
1074         GSList *list;
1075
1076         DBG("device %p name %s", device, device->name);
1077
1078         if (device->driver != NULL)
1079                 return -EALREADY;
1080
1081         for (list = driver_list; list; list = list->next) {
1082                 struct connman_device_driver *driver = list->data;
1083
1084                 if (match_driver(device, driver) == FALSE)
1085                         continue;
1086
1087                 DBG("driver %p name %s", driver, driver->name);
1088
1089                 if (driver->probe(device) == 0) {
1090                         device->driver = driver;
1091                         break;
1092                 }
1093         }
1094
1095         if (device->driver == NULL)
1096                 return 0;
1097
1098         return __connman_technology_add_device(device);
1099 }
1100
1101 /**
1102  * connman_device_unregister:
1103  * @device: device structure
1104  *
1105  * Unregister device with the system
1106  */
1107 void connman_device_unregister(struct connman_device *device)
1108 {
1109         DBG("device %p name %s", device, device->name);
1110
1111         if (device->driver == NULL)
1112                 return;
1113
1114         remove_device(device);
1115 }
1116
1117 /**
1118  * connman_device_get_data:
1119  * @device: device structure
1120  *
1121  * Get private device data pointer
1122  */
1123 void *connman_device_get_data(struct connman_device *device)
1124 {
1125         return device->driver_data;
1126 }
1127
1128 /**
1129  * connman_device_set_data:
1130  * @device: device structure
1131  * @data: data pointer
1132  *
1133  * Set private device data pointer
1134  */
1135 void connman_device_set_data(struct connman_device *device, void *data)
1136 {
1137         device->driver_data = data;
1138 }
1139
1140 struct connman_device *__connman_device_find_device(
1141                                 enum connman_service_type type)
1142 {
1143         GSList *list;
1144
1145         for (list = device_list; list != NULL; list = list->next) {
1146                 struct connman_device *device = list->data;
1147                 enum connman_service_type service_type =
1148                         __connman_device_get_service_type(device);
1149
1150                 if (service_type != type)
1151                         continue;
1152
1153                 return device;
1154         }
1155
1156         return NULL;
1157 }
1158
1159 int __connman_device_request_scan(enum connman_service_type type)
1160 {
1161         connman_bool_t success = FALSE;
1162         int last_err = -ENOSYS;
1163         GSList *list;
1164         int err;
1165
1166         switch (type) {
1167         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1168         case CONNMAN_SERVICE_TYPE_SYSTEM:
1169         case CONNMAN_SERVICE_TYPE_ETHERNET:
1170         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1171         case CONNMAN_SERVICE_TYPE_CELLULAR:
1172         case CONNMAN_SERVICE_TYPE_GPS:
1173         case CONNMAN_SERVICE_TYPE_VPN:
1174         case CONNMAN_SERVICE_TYPE_GADGET:
1175                 return -EOPNOTSUPP;
1176         case CONNMAN_SERVICE_TYPE_WIFI:
1177         case CONNMAN_SERVICE_TYPE_WIMAX:
1178                 break;
1179         }
1180
1181         for (list = device_list; list != NULL; list = list->next) {
1182                 struct connman_device *device = list->data;
1183                 enum connman_service_type service_type =
1184                         __connman_device_get_service_type(device);
1185
1186                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1187                                 service_type != type) {
1188                         continue;
1189                 }
1190
1191                 err = device_scan(device);
1192                 if (err == 0 || err == -EALREADY || err == -EINPROGRESS) {
1193                         success = TRUE;
1194                 } else {
1195                         last_err = err;
1196                         DBG("device %p err %d", device, err);
1197                 }
1198         }
1199
1200         if (success == TRUE)
1201                 return 0;
1202
1203         return last_err;
1204 }
1205
1206 int __connman_device_request_hidden_scan(struct connman_device *device,
1207                                 const char *ssid, unsigned int ssid_len,
1208                                 const char *identity, const char *passphrase)
1209 {
1210         DBG("device %p", device);
1211
1212         if (device == NULL || device->driver == NULL ||
1213                         device->driver->scan_hidden == NULL)
1214                 return -EINVAL;
1215
1216         if (device->scanning == TRUE)
1217                 return -EALREADY;
1218
1219         return device->driver->scan_hidden(device, ssid, ssid_len,
1220                                         identity, passphrase);
1221 }
1222
1223 connman_bool_t __connman_device_isfiltered(const char *devname)
1224 {
1225         char **pattern;
1226
1227         if (device_filter == NULL)
1228                 goto nodevice;
1229
1230         for (pattern = device_filter; *pattern; pattern++) {
1231                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1232                         DBG("ignoring device %s (match)", devname);
1233                         return TRUE;
1234                 }
1235         }
1236
1237 nodevice:
1238         if (g_pattern_match_simple("dummy*", devname) == TRUE) {
1239                 DBG("ignoring dummy networking devices");
1240                 return TRUE;
1241         }
1242
1243         if (nodevice_filter == NULL)
1244                 return FALSE;
1245
1246         for (pattern = nodevice_filter; *pattern; pattern++) {
1247                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1248                         DBG("ignoring device %s (no match)", devname);
1249                         return TRUE;
1250                 }
1251         }
1252
1253         return FALSE;
1254 }
1255
1256 int __connman_device_init(const char *device, const char *nodevice)
1257 {
1258         DBG("");
1259
1260         if (device != NULL)
1261                 device_filter = g_strsplit(device, ",", -1);
1262
1263         if (nodevice != NULL)
1264                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1265
1266         return 0;
1267 }
1268
1269 void __connman_device_cleanup(void)
1270 {
1271         DBG("");
1272
1273         g_strfreev(nodevice_filter);
1274         g_strfreev(device_filter);
1275 }