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 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         connman_bool_t offlinemode;
  35         connman_bool_t blocked;
  36         connman_bool_t powered;
  37         connman_bool_t powered_pending;
  38         connman_bool_t powered_persistent;
  39         connman_bool_t scanning;
  40         connman_bool_t disconnected;
  41         connman_bool_t reconnect;
  42         connman_uint16_t scan_interval;
  43         connman_uint16_t backoff_interval;
  44         char *name;
  45         char *node;
  46         char *address;
  47         char *interface;
  48         char *ident;
  49         int phyindex;
  50         unsigned int connections;
  51         guint scan_timeout;
  52
  53         struct connman_device_driver *driver;
  54         void *driver_data;
  55
  56         char *last_network;
  57         struct connman_network *network;
  58         GHashTable *networks;
  59 };
  60
  61 #define SCAN_INITIAL_DELAY 10
  62
  63 static gboolean device_scan_trigger(gpointer user_data)
  64 {
  65         struct connman_device *device = user_data;
  66
  67         DBG("device %p", device);
  68
  69         if (device->driver == NULL) {
  70                 device->scan_timeout = 0;
  71                 return FALSE;
  72         }
  73
  74         if (device->driver->scan)
  75                 device->driver->scan(device);
  76
  77         return TRUE;
  78 }
  79
  80 static void clear_scan_trigger(struct connman_device *device)
  81 {
  82         if (device->scan_timeout > 0) {
  83                 g_source_remove(device->scan_timeout);
  84                 device->scan_timeout = 0;
  85         }
  86 }
  87
  88 static void reset_scan_trigger(struct connman_device *device)
  89 {
  90         clear_scan_trigger(device);
  91
  92         if (device->scan_interval > 0) {
  93                 guint interval;
  94
  95                 if (g_hash_table_size(device->networks) == 0) {
  96                         if (device->backoff_interval >= device->scan_interval)
  97                                 device->backoff_interval = SCAN_INITIAL_DELAY;
  98                         interval = device->backoff_interval;
  99                 } else
 100                         interval = device->scan_interval;
 101
 102                 DBG("interval %d", interval);
 103
 104                 device->scan_timeout = g_timeout_add_seconds(interval,
 105                                         device_scan_trigger, device);
 106
 107                 device->backoff_interval *= 2;
 108                 if (device->backoff_interval > device->scan_interval)
 109                         device->backoff_interval = device->scan_interval;
 110         }
 111 }
 112
 113 static void force_scan_trigger(struct connman_device *device)
 114 {
 115         clear_scan_trigger(device);
 116
 117         device->scan_timeout = g_timeout_add_seconds(5,
 118                                         device_scan_trigger, device);
 119 }
 120
 121 void connman_device_schedule_scan(struct connman_device *device)
 122 {
 123         reset_scan_trigger(device);
 124 }
 125
 126 static const char *type2description(enum connman_device_type type)
 127 {
 128         switch (type) {
 129         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 130         case CONNMAN_DEVICE_TYPE_VENDOR:
 131                 break;
 132         case CONNMAN_DEVICE_TYPE_ETHERNET:
 133                 return "Ethernet";
 134         case CONNMAN_DEVICE_TYPE_WIFI:
 135                 return "Wireless";
 136         case CONNMAN_DEVICE_TYPE_WIMAX:
 137                 return "WiMAX";
 138         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 139                 return "Bluetooth";
 140         case CONNMAN_DEVICE_TYPE_GPS:
 141                 return "GPS";
 142         case CONNMAN_DEVICE_TYPE_CELLULAR:
 143                 return "Cellular";
 144         case CONNMAN_DEVICE_TYPE_GADGET:
 145                 return "Gadget";
 146
 147         }
 148
 149         return NULL;
 150 }
 151
 152 static const char *type2string(enum connman_device_type type)
 153 {
 154         switch (type) {
 155         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 156         case CONNMAN_DEVICE_TYPE_VENDOR:
 157                 break;
 158         case CONNMAN_DEVICE_TYPE_ETHERNET:
 159                 return "ethernet";
 160         case CONNMAN_DEVICE_TYPE_WIFI:
 161                 return "wifi";
 162         case CONNMAN_DEVICE_TYPE_WIMAX:
 163                 return "wimax";
 164         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 165                 return "bluetooth";
 166         case CONNMAN_DEVICE_TYPE_GPS:
 167                 return "gps";
 168         case CONNMAN_DEVICE_TYPE_CELLULAR:
 169                 return "cellular";
 170         case CONNMAN_DEVICE_TYPE_GADGET:
 171                 return "gadget";
 172
 173         }
 174
 175         return NULL;
 176 }
 177
 178 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 179 {
 180         enum connman_device_type type = connman_device_get_type(device);
 181
 182         switch (type) {
 183         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 184         case CONNMAN_DEVICE_TYPE_VENDOR:
 185         case CONNMAN_DEVICE_TYPE_GPS:
 186                 break;
 187         case CONNMAN_DEVICE_TYPE_ETHERNET:
 188                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 189         case CONNMAN_DEVICE_TYPE_WIFI:
 190                 return CONNMAN_SERVICE_TYPE_WIFI;
 191         case CONNMAN_DEVICE_TYPE_WIMAX:
 192                 return CONNMAN_SERVICE_TYPE_WIMAX;
 193         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 194                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 195         case CONNMAN_DEVICE_TYPE_CELLULAR:
 196                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 197         case CONNMAN_DEVICE_TYPE_GADGET:
 198                 return CONNMAN_SERVICE_TYPE_GADGET;
 199
 200         }
 201
 202         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 203 }
 204
 205 int __connman_device_enable(struct connman_device *device)
 206 {
 207         int err;
 208         enum connman_service_type type;
 209
 210         DBG("device %p %d", device, device->blocked);
 211
 212         if (!device->driver || !device->driver->enable)
 213                 return -EOPNOTSUPP;
 214
 215         if (device->powered_pending == TRUE)
 216                 return -EALREADY;
 217
 218         if (device->blocked == TRUE)
 219                 return -ENOLINK;
 220
 221         connman_device_set_disconnected(device, FALSE);
 222         device->scanning = FALSE;
 223
 224         err = device->driver->enable(device);
 225         if (err < 0 && err != -EALREADY) {
 226                 if (err == -EINPROGRESS) {
 227                         device->powered_pending = TRUE;
 228                         device->offlinemode = FALSE;
 229                         if (__connman_profile_get_offlinemode() == TRUE)
 230                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 231                 }
 232                 return err;
 233         }
 234
 235         device->powered_pending = TRUE;
 236         device->powered = TRUE;
 237         device->offlinemode = FALSE;
 238         if (__connman_profile_get_offlinemode() == TRUE)
 239                 __connman_profile_set_offlinemode(FALSE, FALSE);
 240
 241         type = __connman_device_get_service_type(device);
 242         __connman_technology_enable(type);
 243
 244         return 0;
 245 }
 246
 247 int __connman_device_disable(struct connman_device *device)
 248 {
 249         int err;
 250         enum connman_service_type type;
 251
 252         DBG("device %p", device);
 253
 254         if (!device->driver || !device->driver->disable)
 255                 return -EOPNOTSUPP;
 256
 257         if (device->powered == FALSE)
 258                 return -ENOLINK;
 259
 260         if (device->powered_pending == FALSE)
 261                 return -EALREADY;
 262
 263         device->reconnect = FALSE;
 264
 265         clear_scan_trigger(device);
 266
 267         g_hash_table_remove_all(device->networks);
 268
 269         err = device->driver->disable(device);
 270         if (err < 0 && err != -EALREADY) {
 271                 if (err == -EINPROGRESS)
 272                         device->powered_pending = FALSE;
 273                 return err;
 274         }
 275
 276         device->connections = 0;
 277
 278         device->powered_pending = FALSE;
 279         device->powered = FALSE;
 280
 281         type = __connman_device_get_service_type(device);
 282         __connman_technology_disable(type);
 283
 284         return 0;
 285 }
 286
 287 static int set_powered(struct connman_device *device, connman_bool_t powered)
 288 {
 289         DBG("device %p powered %d", device, powered);
 290
 291         if (powered == TRUE)
 292                 return __connman_device_enable(device);
 293         else
 294                 return __connman_device_disable(device);
 295 }
 296
 297 static int setup_device(struct connman_device *device)
 298 {
 299         DBG("device %p", device);
 300
 301         __connman_technology_add_device(device);
 302
 303         if (device->offlinemode == FALSE &&
 304                                 device->powered_persistent == TRUE)
 305                 __connman_device_enable(device);
 306
 307         return 0;
 308 }
 309
 310 static void probe_driver(struct connman_element *element, gpointer user_data)
 311 {
 312         struct connman_device_driver *driver = user_data;
 313
 314         DBG("element %p name %s", element, element->name);
 315
 316         if (element->device == NULL)
 317                 return;
 318
 319         if (element->device->driver != NULL)
 320                 return;
 321
 322         if (driver->type != element->device->type)
 323                 return;
 324
 325         if (driver->probe(element->device) < 0)
 326                 return;
 327
 328         element->device->driver = driver;
 329
 330         __connman_element_set_driver(element);
 331
 332         setup_device(element->device);
 333 }
 334
 335 static void remove_device(struct connman_device *device)
 336 {
 337         DBG("device %p", device);
 338
 339         __connman_device_disable(device);
 340
 341         __connman_technology_remove_device(device);
 342
 343         if (device->driver->remove)
 344                 device->driver->remove(device);
 345
 346         device->driver = NULL;
 347 }
 348
 349 static void remove_driver(struct connman_element *element, gpointer user_data)
 350 {
 351         struct connman_device_driver *driver = user_data;
 352
 353         DBG("element %p name %s", element, element->name);
 354
 355         if (element->device == NULL)
 356                 return;
 357
 358         if (element->device->driver == driver)
 359                 remove_device(element->device);
 360 }
 361
 362 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 363 {
 364         if (device == NULL || device->driver == NULL)
 365                 return FALSE;
 366
 367         return TRUE;
 368 }
 369
 370 static GSList *driver_list = NULL;
 371
 372 static gint compare_priority(gconstpointer a, gconstpointer b)
 373 {
 374         const struct connman_device_driver *driver1 = a;
 375         const struct connman_device_driver *driver2 = b;
 376
 377         return driver2->priority - driver1->priority;
 378 }
 379
 380 /**
 381  * connman_device_driver_register:
 382  * @driver: device driver definition
 383  *
 384  * Register a new device driver
 385  *
 386  * Returns: %0 on success
 387  */
 388 int connman_device_driver_register(struct connman_device_driver *driver)
 389 {
 390         DBG("driver %p name %s", driver, driver->name);
 391
 392         driver_list = g_slist_insert_sorted(driver_list, driver,
 393                                                         compare_priority);
 394
 395         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 396                                                 probe_driver, driver);
 397
 398         return 0;
 399 }
 400
 401 /**
 402  * connman_device_driver_unregister:
 403  * @driver: device driver definition
 404  *
 405  * Remove a previously registered device driver
 406  */
 407 void connman_device_driver_unregister(struct connman_device_driver *driver)
 408 {
 409         DBG("driver %p name %s", driver, driver->name);
 410
 411         driver_list = g_slist_remove(driver_list, driver);
 412
 413         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 414                                                 remove_driver, driver);
 415 }
 416
 417 static void unregister_network(gpointer data)
 418 {
 419         struct connman_network *network = data;
 420
 421         DBG("network %p", network);
 422
 423         connman_element_unregister((struct connman_element *) network);
 424
 425         __connman_network_set_device(network, NULL);
 426
 427         connman_network_unref(network);
 428 }
 429
 430 static void device_destruct(struct connman_element *element)
 431 {
 432         struct connman_device *device = element->device;
 433
 434         DBG("element %p name %s", element, element->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
 444         g_free(device->last_network);
 445
 446         g_hash_table_destroy(device->networks);
 447         device->networks = NULL;
 448 }
 449
 450 /**
 451  * connman_device_create:
 452  * @node: device node name (for example an address)
 453  * @type: device type
 454  *
 455  * Allocate a new device of given #type and assign the #node name to it.
 456  *
 457  * Returns: a newly-allocated #connman_device structure
 458  */
 459 struct connman_device *connman_device_create(const char *node,
 460                                                 enum connman_device_type type)
 461 {
 462         struct connman_device *device;
 463         const char *str;
 464         enum connman_service_type service_type;
 465
 466         DBG("node %s type %d", node, type);
 467
 468         device = g_try_new0(struct connman_device, 1);
 469         if (device == NULL)
 470                 return NULL;
 471
 472         DBG("device %p", device);
 473
 474         __connman_element_initialize(&device->element);
 475
 476         device->element.name = g_strdup(node);
 477         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 478
 479         device->element.device = device;
 480         device->element.destruct = device_destruct;
 481
 482         str = type2string(type);
 483         if (str != NULL)
 484                 connman_element_set_string(&device->element,
 485                                         CONNMAN_PROPERTY_ID_TYPE, str);
 486
 487         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 488
 489         device->type = type;
 490         device->name = g_strdup(type2description(device->type));
 491
 492         device->powered_persistent = TRUE;
 493
 494         device->phyindex = -1;
 495
 496         service_type = __connman_device_get_service_type(device);
 497         device->blocked = __connman_technology_get_blocked(service_type);
 498         device->backoff_interval = SCAN_INITIAL_DELAY;
 499
 500         switch (type) {
 501         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 502         case CONNMAN_DEVICE_TYPE_ETHERNET:
 503         case CONNMAN_DEVICE_TYPE_WIMAX:
 504         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 505         case CONNMAN_DEVICE_TYPE_CELLULAR:
 506         case CONNMAN_DEVICE_TYPE_GPS:
 507         case CONNMAN_DEVICE_TYPE_GADGET:
 508         case CONNMAN_DEVICE_TYPE_VENDOR:
 509                 device->scan_interval = 0;
 510                 break;
 511         case CONNMAN_DEVICE_TYPE_WIFI:
 512                 device->scan_interval = 300;
 513                 break;
 514         }
 515
 516         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 517                                                 g_free, unregister_network);
 518
 519         return device;
 520 }
 521
 522 /**
 523  * connman_device_ref:
 524  * @device: device structure
 525  *
 526  * Increase reference counter of device
 527  */
 528 struct connman_device *connman_device_ref(struct connman_device *device)
 529 {
 530         if (connman_element_ref(&device->element) == NULL)
 531                 return NULL;
 532
 533         return device;
 534 }
 535
 536 /**
 537  * connman_device_unref:
 538  * @device: device structure
 539  *
 540  * Decrease reference counter of device
 541  */
 542 void connman_device_unref(struct connman_device *device)
 543 {
 544         connman_element_unref(&device->element);
 545 }
 546
 547 const char *__connman_device_get_type(struct connman_device *device)
 548 {
 549         return type2string(device->type);
 550 }
 551
 552 /**
 553  * connman_device_get_type:
 554  * @device: device structure
 555  *
 556  * Get type of device
 557  */
 558 enum connman_device_type connman_device_get_type(struct connman_device *device)
 559 {
 560         return device->type;
 561 }
 562
 563 /**
 564  * connman_device_set_index:
 565  * @device: device structure
 566  * @index: index number
 567  *
 568  * Set index number of device
 569  */
 570 void connman_device_set_index(struct connman_device *device, int index)
 571 {
 572         device->element.index = index;
 573 }
 574
 575 /**
 576  * connman_device_get_index:
 577  * @device: device structure
 578  *
 579  * Get index number of device
 580  */
 581 int connman_device_get_index(struct connman_device *device)
 582 {
 583         return device->element.index;
 584 }
 585
 586 int __connman_device_get_phyindex(struct connman_device *device)
 587 {
 588         return device->phyindex;
 589 }
 590
 591 void __connman_device_set_phyindex(struct connman_device *device,
 592                                                         int phyindex)
 593 {
 594         device->phyindex = phyindex;
 595 }
 596
 597 /**
 598  * connman_device_set_interface:
 599  * @device: device structure
 600  * @interface: interface name
 601  *
 602  * Set interface name of device
 603  */
 604 void connman_device_set_interface(struct connman_device *device,
 605                                                 const char *interface)
 606 {
 607         g_free(device->element.devname);
 608         device->element.devname = g_strdup(interface);
 609
 610         g_free(device->interface);
 611         device->interface = g_strdup(interface);
 612
 613         if (device->name == NULL) {
 614                 const char *str = type2description(device->type);
 615                 if (str != NULL && device->interface != NULL)
 616                         device->name = g_strdup_printf("%s (%s)", str,
 617                                                         device->interface);
 618         }
 619 }
 620
 621 /**
 622  * connman_device_set_ident:
 623  * @device: device structure
 624  * @ident: unique identifier
 625  *
 626  * Set unique identifier of device
 627  */
 628 void connman_device_set_ident(struct connman_device *device,
 629                                                         const char *ident)
 630 {
 631         g_free(device->ident);
 632         device->ident = g_strdup(ident);
 633 }
 634
 635 const char *connman_device_get_ident(struct connman_device *device)
 636 {
 637         return device->ident;
 638 }
 639
 640 /**
 641  * connman_device_set_powered:
 642  * @device: device structure
 643  * @powered: powered state
 644  *
 645  * Change power state of device
 646  */
 647 int connman_device_set_powered(struct connman_device *device,
 648                                                 connman_bool_t powered)
 649 {
 650         int err;
 651         enum connman_service_type type;
 652
 653         DBG("driver %p powered %d", device, powered);
 654
 655         if (device->powered == powered) {
 656                 device->powered_pending = powered;
 657                 return -EALREADY;
 658         }
 659
 660         if (powered == TRUE)
 661                 err = __connman_device_enable(device);
 662         else
 663                 err = __connman_device_disable(device);
 664
 665         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 666                 return err;
 667
 668         device->powered = powered;
 669         device->powered_pending = powered;
 670
 671         type = __connman_device_get_service_type(device);
 672
 673         if (device->powered == TRUE)
 674                 __connman_technology_enable(type);
 675         else
 676                 __connman_technology_disable(type);
 677
 678         if (device->offlinemode == TRUE && powered == TRUE)
 679                 return connman_device_set_powered(device, FALSE);
 680
 681         if (powered == FALSE)
 682                 return 0;
 683
 684         reset_scan_trigger(device);
 685
 686         if (device->driver && device->driver->scan)
 687                 device->driver->scan(device);
 688
 689         return 0;
 690 }
 691
 692 int __connman_device_set_blocked(struct connman_device *device,
 693                                                 connman_bool_t blocked)
 694 {
 695         connman_bool_t powered;
 696
 697         DBG("device %p blocked %d", device, blocked);
 698
 699         device->blocked = blocked;
 700
 701         if (device->offlinemode == TRUE)
 702                 return 0;
 703
 704         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 705
 706         if (blocked == FALSE)
 707                 powered = device->powered_persistent;
 708         else
 709                 powered = FALSE;
 710
 711         return set_powered(device, powered);
 712 }
 713
 714 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 715 {
 716         return device->blocked;
 717 }
 718
 719 int __connman_device_scan(struct connman_device *device)
 720 {
 721         if (!device->driver || !device->driver->scan)
 722                 return -EOPNOTSUPP;
 723
 724         if (device->powered == FALSE)
 725                 return -ENOLINK;
 726
 727         reset_scan_trigger(device);
 728
 729         return device->driver->scan(device);
 730 }
 731
 732 int __connman_device_enable_persistent(struct connman_device *device)
 733 {
 734         int err;
 735
 736         DBG("device %p", device);
 737
 738         device->powered_persistent = TRUE;
 739
 740         __connman_storage_save_device(device);
 741
 742         err = __connman_device_enable(device);
 743         if (err == 0 || err == -EINPROGRESS) {
 744                 device->offlinemode = FALSE;
 745                 if (__connman_profile_get_offlinemode() == TRUE) {
 746                         __connman_profile_set_offlinemode(FALSE, FALSE);
 747
 748                         __connman_profile_save_default();
 749                 }
 750         }
 751
 752         return err;
 753 }
 754
 755 int __connman_device_disable_persistent(struct connman_device *device)
 756 {
 757         DBG("device %p", device);
 758
 759         device->powered_persistent = FALSE;
 760
 761         __connman_storage_save_device(device);
 762
 763         return __connman_device_disable(device);
 764 }
 765
 766 int __connman_device_disconnect(struct connman_device *device)
 767 {
 768         GHashTableIter iter;
 769         gpointer key, value;
 770
 771         DBG("device %p", device);
 772
 773         connman_device_set_disconnected(device, TRUE);
 774
 775         g_hash_table_iter_init(&iter, device->networks);
 776
 777         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 778                 struct connman_network *network = value;
 779
 780                 if (connman_network_get_connecting(network) == TRUE) {
 781                         /*
 782                          * Skip network in the process of connecting.
 783                          * This is a workaround for WiFi networks serviced
 784                          * by the supplicant plugin that hold a reference
 785                          * to the network.  If we disconnect the network
 786                          * here then the referenced object will not be
 787                          * registered and usage (like launching DHCP client)
 788                          * will fail.  There is nothing to be gained by
 789                          * removing the network here anyway.
 790                          */
 791                         connman_warn("Skipping disconnect of %s",
 792                                 connman_network_get_identifier(network));
 793                         continue;
 794                 }
 795
 796                 __connman_network_disconnect(network);
 797         }
 798
 799         return 0;
 800 }
 801
 802 static void mark_network_available(gpointer key, gpointer value,
 803                                                         gpointer user_data)
 804 {
 805         struct connman_network *network = value;
 806
 807         connman_network_set_available(network, TRUE);
 808 }
 809
 810 static void mark_network_unavailable(gpointer key, gpointer value,
 811                                                         gpointer user_data)
 812 {
 813         struct connman_network *network = value;
 814
 815         if (connman_network_get_connected(network) == TRUE)
 816                 return;
 817
 818         connman_network_set_available(network, FALSE);
 819 }
 820
 821 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 822                                                         gpointer user_data)
 823 {
 824         struct connman_network *network = value;
 825
 826         if (connman_network_get_connected(network) == TRUE)
 827                 return FALSE;
 828
 829         if (connman_network_get_available(network) == TRUE)
 830                 return FALSE;
 831
 832         return TRUE;
 833 }
 834
 835 void __connman_device_cleanup_networks(struct connman_device *device)
 836 {
 837         g_hash_table_foreach_remove(device->networks,
 838                                         remove_unavailable_network, NULL);
 839 }
 840
 841 connman_bool_t __connman_device_scanning(struct connman_device *device)
 842 {
 843         return device->scanning;
 844 }
 845
 846 void connman_device_reset_scanning(struct connman_device *device)
 847 {
 848         device->scanning = FALSE;
 849
 850         g_hash_table_foreach(device->networks,
 851                                 mark_network_available, NULL);
 852
 853 }
 854
 855 /**
 856  * connman_device_set_scanning:
 857  * @device: device structure
 858  * @scanning: scanning state
 859  *
 860  * Change scanning state of device
 861  */
 862 int connman_device_set_scanning(struct connman_device *device,
 863                                                 connman_bool_t scanning)
 864 {
 865         DBG("device %p scanning %d", device, scanning);
 866
 867         if (!device->driver || !device->driver->scan)
 868                 return -EINVAL;
 869
 870         if (device->scanning == scanning)
 871                 return -EALREADY;
 872
 873         device->scanning = scanning;
 874
 875         if (scanning == TRUE) {
 876                 reset_scan_trigger(device);
 877
 878                 g_hash_table_foreach(device->networks,
 879                                         mark_network_unavailable, NULL);
 880
 881                 return 0;
 882         }
 883
 884         __connman_device_cleanup_networks(device);
 885
 886         if (device->connections > 0)
 887                 return 0;
 888
 889         __connman_service_auto_connect();
 890
 891         return 0;
 892 }
 893
 894 /**
 895  * connman_device_set_disconnected:
 896  * @device: device structure
 897  * @disconnected: disconnected state
 898  *
 899  * Change disconnected state of device (only for device with networks)
 900  */
 901 int connman_device_set_disconnected(struct connman_device *device,
 902                                                 connman_bool_t disconnected)
 903 {
 904         DBG("device %p disconnected %d", device, disconnected);
 905
 906         if (device->disconnected == disconnected)
 907                 return -EALREADY;
 908
 909         device->disconnected = disconnected;
 910
 911         if (disconnected == TRUE)
 912                 force_scan_trigger(device);
 913
 914         return 0;
 915 }
 916
 917 /**
 918  * connman_device_get_disconnected:
 919  * @device: device structure
 920  *
 921  * Get device disconnected state
 922  */
 923 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 924 {
 925         return device->disconnected;
 926 }
 927
 928 /**
 929  * connman_device_set_string:
 930  * @device: device structure
 931  * @key: unique identifier
 932  * @value: string value
 933  *
 934  * Set string value for specific key
 935  */
 936 int connman_device_set_string(struct connman_device *device,
 937                                         const char *key, const char *value)
 938 {
 939         DBG("device %p key %s value %s", device, key, value);
 940
 941         if (g_str_equal(key, "Address") == TRUE) {
 942                 g_free(device->address);
 943                 device->address = g_strdup(value);
 944         } else if (g_str_equal(key, "Name") == TRUE) {
 945                 g_free(device->name);
 946                 device->name = g_strdup(value);
 947         } else if (g_str_equal(key, "Node") == TRUE) {
 948                 g_free(device->node);
 949                 device->node = g_strdup(value);
 950         }
 951
 952         return connman_element_set_string(&device->element, key, value);
 953 }
 954
 955 /**
 956  * connman_device_get_string:
 957  * @device: device structure
 958  * @key: unique identifier
 959  *
 960  * Get string value for specific key
 961  */
 962 const char *connman_device_get_string(struct connman_device *device,
 963                                                         const char *key)
 964 {
 965         DBG("device %p key %s", device, key);
 966
 967         if (g_str_equal(key, "Address") == TRUE)
 968                 return device->address;
 969         else if (g_str_equal(key, "Name") == TRUE)
 970                 return device->name;
 971         else if (g_str_equal(key, "Node") == TRUE)
 972                 return device->node;
 973         else if (g_str_equal(key, "Interface") == TRUE)
 974                 return device->interface;
 975
 976         return connman_element_get_string(&device->element, key);
 977 }
 978
 979 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 980 {
 981         struct connman_device *device = element->device;
 982         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 983         connman_bool_t powered;
 984
 985         DBG("element %p name %s", element, element->name);
 986
 987         if (device == NULL)
 988                 return;
 989
 990         device->offlinemode = offlinemode;
 991
 992         if (device->blocked == TRUE)
 993                 return;
 994
 995         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 996
 997         if (device->powered == powered)
 998                 return;
 999
1000         if (device->powered_persistent == FALSE)
1001                 powered = FALSE;
1002
1003         set_powered(device, powered);
1004 }
1005
1006 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1007 {
1008         DBG("offlinmode %d", offlinemode);
1009
1010         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
1011                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
1012
1013         __connman_notifier_offlinemode(offlinemode);
1014
1015         return 0;
1016 }
1017
1018 void __connman_device_increase_connections(struct connman_device *device)
1019 {
1020         if (device == NULL)
1021                 return;
1022
1023         device->connections++;
1024 }
1025
1026 void __connman_device_decrease_connections(struct connman_device *device)
1027 {
1028         if (device == NULL)
1029                 return;
1030
1031         device->connections--;
1032
1033         if (device->connections == 0)
1034                 device->backoff_interval = SCAN_INITIAL_DELAY;
1035 }
1036
1037 /**
1038  * connman_device_add_network:
1039  * @device: device structure
1040  * @network: network structure
1041  *
1042  * Add new network to the device
1043  */
1044 int connman_device_add_network(struct connman_device *device,
1045                                         struct connman_network *network)
1046 {
1047         const char *identifier = connman_network_get_identifier(network);
1048         int err;
1049
1050         DBG("device %p network %p", device, network);
1051
1052         if (identifier == NULL)
1053                 return -EINVAL;
1054
1055         __connman_network_set_device(network, device);
1056
1057         err = connman_element_register((struct connman_element *) network,
1058                                                         &device->element);
1059         if (err < 0) {
1060                 __connman_network_set_device(network, NULL);
1061                 return err;
1062         }
1063
1064         g_hash_table_insert(device->networks, g_strdup(identifier),
1065                                                                 network);
1066
1067         return 0;
1068 }
1069
1070 /**
1071  * connman_device_get_network:
1072  * @device: device structure
1073  * @identifier: network identifier
1074  *
1075  * Get network for given identifier
1076  */
1077 struct connman_network *connman_device_get_network(struct connman_device *device,
1078                                                         const char *identifier)
1079 {
1080         DBG("device %p identifier %s", device, identifier);
1081
1082         return g_hash_table_lookup(device->networks, identifier);
1083 }
1084
1085 /**
1086  * connman_device_remove_network:
1087  * @device: device structure
1088  * @identifier: network identifier
1089  *
1090  * Remove network for given identifier
1091  */
1092 int connman_device_remove_network(struct connman_device *device,
1093                                                         const char *identifier)
1094 {
1095         DBG("device %p identifier %s", device, identifier);
1096
1097         g_hash_table_remove(device->networks, identifier);
1098
1099         return 0;
1100 }
1101
1102 void connman_device_remove_all_networks(struct connman_device *device)
1103 {
1104         g_hash_table_remove_all(device->networks);
1105 }
1106
1107 void __connman_device_set_network(struct connman_device *device,
1108                                         struct connman_network *network)
1109 {
1110         const char *name;
1111
1112         if (device == NULL)
1113                 return;
1114
1115         if (device->network == network)
1116                 return;
1117
1118         if (device->network != NULL)
1119                 connman_network_unref(device->network);
1120
1121         if (network != NULL) {
1122                 name = connman_network_get_string(network,
1123                                                 CONNMAN_PROPERTY_ID_NAME);
1124                 g_free(device->last_network);
1125                 device->last_network = g_strdup(name);
1126
1127                 device->network = connman_network_ref(network);
1128         } else {
1129                 g_free(device->last_network);
1130                 device->last_network = NULL;
1131
1132                 device->network = NULL;
1133         }
1134 }
1135
1136 void __connman_device_set_reconnect(struct connman_device *device,
1137                                                 connman_bool_t reconnect)
1138 {
1139         device->reconnect = reconnect;
1140 }
1141
1142 connman_bool_t  __connman_device_get_reconnect(
1143                                 struct connman_device *device)
1144 {
1145         return device->reconnect;
1146 }
1147
1148 /**
1149  * connman_device_register:
1150  * @device: device structure
1151  *
1152  * Register device with the system
1153  */
1154 int connman_device_register(struct connman_device *device)
1155 {
1156         __connman_storage_load_device(device);
1157
1158         device->offlinemode = __connman_profile_get_offlinemode();
1159
1160         return connman_element_register(&device->element, NULL);
1161 }
1162
1163 /**
1164  * connman_device_unregister:
1165  * @device: device structure
1166  *
1167  * Unregister device with the system
1168  */
1169 void connman_device_unregister(struct connman_device *device)
1170 {
1171         __connman_storage_save_device(device);
1172
1173         connman_element_unregister(&device->element);
1174 }
1175
1176 /**
1177  * connman_device_get_data:
1178  * @device: device structure
1179  *
1180  * Get private device data pointer
1181  */
1182 void *connman_device_get_data(struct connman_device *device)
1183 {
1184         return device->driver_data;
1185 }
1186
1187 /**
1188  * connman_device_set_data:
1189  * @device: device structure
1190  * @data: data pointer
1191  *
1192  * Set private device data pointer
1193  */
1194 void connman_device_set_data(struct connman_device *device, void *data)
1195 {
1196         device->driver_data = data;
1197 }
1198
1199 static gboolean match_driver(struct connman_device *device,
1200                                         struct connman_device_driver *driver)
1201 {
1202         if (device->type == driver->type ||
1203                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1204                 return TRUE;
1205
1206         return FALSE;
1207 }
1208
1209 static int device_probe(struct connman_element *element)
1210 {
1211         struct connman_device *device = element->device;
1212         GSList *list;
1213
1214         DBG("element %p name %s", element, element->name);
1215
1216         if (device == NULL)
1217                 return -ENODEV;
1218
1219         if (device->driver != NULL)
1220                 return -EALREADY;
1221
1222         for (list = driver_list; list; list = list->next) {
1223                 struct connman_device_driver *driver = list->data;
1224
1225                 if (match_driver(device, driver) == FALSE)
1226                         continue;
1227
1228                 DBG("driver %p name %s", driver, driver->name);
1229
1230                 if (driver->probe(device) == 0) {
1231                         device->driver = driver;
1232                         break;
1233                 }
1234         }
1235
1236         if (device->driver == NULL)
1237                 return -ENODEV;
1238
1239         return setup_device(device);
1240 }
1241
1242 static void device_remove(struct connman_element *element)
1243 {
1244         struct connman_device *device = element->device;
1245
1246         DBG("element %p name %s", element, element->name);
1247
1248         if (device == NULL)
1249                 return;
1250
1251         if (device->driver == NULL)
1252                 return;
1253
1254         remove_device(device);
1255 }
1256
1257 static struct connman_driver device_driver = {
1258         .name           = "device",
1259         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1260         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1261         .probe          = device_probe,
1262         .remove         = device_remove,
1263 };
1264
1265 static int device_load(struct connman_device *device)
1266 {
1267         const char *ident = __connman_profile_active_ident();
1268         GKeyFile *keyfile;
1269         GError *error = NULL;
1270         gchar *identifier;
1271         connman_bool_t powered;
1272
1273         DBG("device %p", device);
1274
1275         keyfile = __connman_storage_open_profile(ident);
1276         if (keyfile == NULL)
1277                 return 0;
1278
1279         identifier = g_strdup_printf("device_%s", device->element.name);
1280         if (identifier == NULL)
1281                 goto done;
1282
1283         powered = g_key_file_get_boolean(keyfile, identifier,
1284                                                 "Powered", &error);
1285         if (error == NULL)
1286                 device->powered_persistent = powered;
1287         g_clear_error(&error);
1288
1289 done:
1290         g_free(identifier);
1291
1292         __connman_storage_close_profile(ident, keyfile, FALSE);
1293
1294         return 0;
1295 }
1296
1297 static int device_save(struct connman_device *device)
1298 {
1299         const char *ident = __connman_profile_active_ident();
1300         GKeyFile *keyfile;
1301         gchar *identifier;
1302
1303         DBG("device %p", device);
1304
1305         keyfile = __connman_storage_open_profile(ident);
1306         if (keyfile == NULL)
1307                 return 0;
1308
1309         identifier = g_strdup_printf("device_%s", device->element.name);
1310         if (identifier == NULL)
1311                 goto done;
1312
1313         g_key_file_set_boolean(keyfile, identifier,
1314                                         "Powered", device->powered_persistent);
1315
1316 done:
1317         g_free(identifier);
1318
1319         __connman_storage_close_profile(ident, keyfile, TRUE);
1320
1321         return 0;
1322 }
1323
1324 static struct connman_storage device_storage = {
1325         .name           = "device",
1326         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1327         .device_load    = device_load,
1328         .device_save    = device_save,
1329 };
1330
1331 int __connman_device_init(void)
1332 {
1333         DBG("");
1334
1335         if (connman_storage_register(&device_storage) < 0)
1336                 connman_error("Failed to register device storage");
1337
1338         return connman_driver_register(&device_driver);
1339 }
1340
1341 void __connman_device_cleanup(void)
1342 {
1343         DBG("");
1344
1345         connman_driver_unregister(&device_driver);
1346
1347         connman_storage_unregister(&device_storage);
1348 }