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         char *name;
  44         char *node;
  45         char *address;
  46         char *interface;
  47         char *ident;
  48         int phyindex;
  49         unsigned int connections;
  50         guint scan_timeout;
  51
  52         struct connman_device_driver *driver;
  53         void *driver_data;
  54
  55         char *last_network;
  56         struct connman_network *network;
  57         GHashTable *networks;
  58 };
  59
  60 static gboolean device_scan_trigger(gpointer user_data)
  61 {
  62         struct connman_device *device = user_data;
  63
  64         DBG("device %p", device);
  65
  66         if (device->driver == NULL) {
  67                 device->scan_timeout = 0;
  68                 return FALSE;
  69         }
  70
  71         if (device->driver->scan)
  72                 device->driver->scan(device);
  73
  74         return TRUE;
  75 }
  76
  77 static void clear_scan_trigger(struct connman_device *device)
  78 {
  79         if (device->scan_timeout > 0) {
  80                 g_source_remove(device->scan_timeout);
  81                 device->scan_timeout = 0;
  82         }
  83 }
  84
  85 static void reset_scan_trigger(struct connman_device *device)
  86 {
  87         clear_scan_trigger(device);
  88
  89         if (device->scan_interval > 0) {
  90                 guint interval = device->scan_interval;
  91                 device->scan_timeout = g_timeout_add_seconds(interval,
  92                                         device_scan_trigger, device);
  93         }
  94 }
  95
  96 static void force_scan_trigger(struct connman_device *device)
  97 {
  98         clear_scan_trigger(device);
  99
 100         device->scan_timeout = g_timeout_add_seconds(5,
 101                                         device_scan_trigger, device);
 102 }
 103
 104 void connman_device_schedule_scan(struct connman_device *device)
 105 {
 106         reset_scan_trigger(device);
 107 }
 108
 109 static const char *type2description(enum connman_device_type type)
 110 {
 111         switch (type) {
 112         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 113         case CONNMAN_DEVICE_TYPE_VENDOR:
 114                 break;
 115         case CONNMAN_DEVICE_TYPE_ETHERNET:
 116                 return "Ethernet";
 117         case CONNMAN_DEVICE_TYPE_WIFI:
 118                 return "Wireless";
 119         case CONNMAN_DEVICE_TYPE_WIMAX:
 120                 return "WiMAX";
 121         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 122                 return "Bluetooth";
 123         case CONNMAN_DEVICE_TYPE_GPS:
 124                 return "GPS";
 125         case CONNMAN_DEVICE_TYPE_CELLULAR:
 126                 return "Cellular";
 127         }
 128
 129         return NULL;
 130 }
 131
 132 static const char *type2string(enum connman_device_type type)
 133 {
 134         switch (type) {
 135         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 136         case CONNMAN_DEVICE_TYPE_VENDOR:
 137                 break;
 138         case CONNMAN_DEVICE_TYPE_ETHERNET:
 139                 return "ethernet";
 140         case CONNMAN_DEVICE_TYPE_WIFI:
 141                 return "wifi";
 142         case CONNMAN_DEVICE_TYPE_WIMAX:
 143                 return "wimax";
 144         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 145                 return "bluetooth";
 146         case CONNMAN_DEVICE_TYPE_GPS:
 147                 return "gps";
 148         case CONNMAN_DEVICE_TYPE_CELLULAR:
 149                 return "cellular";
 150         }
 151
 152         return NULL;
 153 }
 154
 155 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 156 {
 157         enum connman_device_type type = connman_device_get_type(device);
 158
 159         switch (type) {
 160         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 161         case CONNMAN_DEVICE_TYPE_VENDOR:
 162         case CONNMAN_DEVICE_TYPE_GPS:
 163                 break;
 164         case CONNMAN_DEVICE_TYPE_ETHERNET:
 165                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 166         case CONNMAN_DEVICE_TYPE_WIFI:
 167                 return CONNMAN_SERVICE_TYPE_WIFI;
 168         case CONNMAN_DEVICE_TYPE_WIMAX:
 169                 return CONNMAN_SERVICE_TYPE_WIMAX;
 170         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 171                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 172         case CONNMAN_DEVICE_TYPE_CELLULAR:
 173                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 174         }
 175
 176         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 177 }
 178
 179 int __connman_device_enable(struct connman_device *device)
 180 {
 181         int err;
 182
 183         DBG("device %p %d", device, device->blocked);
 184
 185         if (!device->driver || !device->driver->enable)
 186                 return -EOPNOTSUPP;
 187
 188         if (device->powered_pending == TRUE)
 189                 return -EALREADY;
 190
 191         if (device->blocked == TRUE)
 192                 return -ENOLINK;
 193
 194         err = device->driver->enable(device);
 195         if (err < 0) {
 196                 if (err == -EINPROGRESS) {
 197                         device->powered_pending = TRUE;
 198                         device->offlinemode = FALSE;
 199                         if (__connman_profile_get_offlinemode() == TRUE)
 200                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 201                 }
 202                 return err;
 203         }
 204
 205         device->powered_pending = TRUE;
 206         device->powered = TRUE;
 207         device->offlinemode = FALSE;
 208         if (__connman_profile_get_offlinemode() == TRUE)
 209                 __connman_profile_set_offlinemode(FALSE, FALSE);
 210
 211         __connman_technology_enable_device(device);
 212
 213         return 0;
 214 }
 215
 216 int __connman_device_disable(struct connman_device *device)
 217 {
 218         int err;
 219
 220         DBG("device %p", device);
 221
 222         if (!device->driver || !device->driver->disable)
 223                 return -EOPNOTSUPP;
 224
 225         if (device->powered == FALSE)
 226                 return -ENOLINK;
 227
 228         if (device->powered_pending == FALSE)
 229                 return -EALREADY;
 230
 231         device->reconnect = FALSE;
 232
 233         clear_scan_trigger(device);
 234
 235         g_hash_table_remove_all(device->networks);
 236
 237         err = device->driver->disable(device);
 238         if (err < 0) {
 239                 if (err == -EINPROGRESS)
 240                         device->powered_pending = FALSE;
 241                 return err;
 242         }
 243
 244         device->powered_pending = FALSE;
 245         device->powered = FALSE;
 246
 247         __connman_technology_disable_device(device);
 248
 249         return 0;
 250 }
 251
 252 static int set_powered(struct connman_device *device, connman_bool_t powered)
 253 {
 254         DBG("device %p powered %d", device, powered);
 255
 256         if (powered == TRUE)
 257                 return __connman_device_enable(device);
 258         else
 259                 return __connman_device_disable(device);
 260 }
 261
 262 static int setup_device(struct connman_device *device)
 263 {
 264         DBG("device %p", device);
 265
 266         __connman_technology_add_device(device);
 267
 268         if (device->offlinemode == FALSE &&
 269                                 device->powered_persistent == TRUE)
 270                 __connman_device_enable(device);
 271
 272         return 0;
 273 }
 274
 275 static void probe_driver(struct connman_element *element, gpointer user_data)
 276 {
 277         struct connman_device_driver *driver = user_data;
 278
 279         DBG("element %p name %s", element, element->name);
 280
 281         if (element->device == NULL)
 282                 return;
 283
 284         if (element->device->driver != NULL)
 285                 return;
 286
 287         if (driver->type != element->device->type)
 288                 return;
 289
 290         if (driver->probe(element->device) < 0)
 291                 return;
 292
 293         element->device->driver = driver;
 294
 295         __connman_element_set_driver(element);
 296
 297         setup_device(element->device);
 298 }
 299
 300 static void remove_device(struct connman_device *device)
 301 {
 302         DBG("device %p", device);
 303
 304         __connman_device_disable(device);
 305
 306         __connman_technology_remove_device(device);
 307
 308         if (device->driver->remove)
 309                 device->driver->remove(device);
 310
 311         device->driver = NULL;
 312 }
 313
 314 static void remove_driver(struct connman_element *element, gpointer user_data)
 315 {
 316         struct connman_device_driver *driver = user_data;
 317
 318         DBG("element %p name %s", element, element->name);
 319
 320         if (element->device == NULL)
 321                 return;
 322
 323         if (element->device->driver == driver)
 324                 remove_device(element->device);
 325 }
 326
 327 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 328 {
 329         if (device == NULL || device->driver == NULL)
 330                 return FALSE;
 331
 332         return TRUE;
 333 }
 334
 335 static GSList *driver_list = NULL;
 336
 337 static gint compare_priority(gconstpointer a, gconstpointer b)
 338 {
 339         const struct connman_device_driver *driver1 = a;
 340         const struct connman_device_driver *driver2 = b;
 341
 342         return driver2->priority - driver1->priority;
 343 }
 344
 345 /**
 346  * connman_device_driver_register:
 347  * @driver: device driver definition
 348  *
 349  * Register a new device driver
 350  *
 351  * Returns: %0 on success
 352  */
 353 int connman_device_driver_register(struct connman_device_driver *driver)
 354 {
 355         DBG("driver %p name %s", driver, driver->name);
 356
 357         driver_list = g_slist_insert_sorted(driver_list, driver,
 358                                                         compare_priority);
 359
 360         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 361                                                 probe_driver, driver);
 362
 363         return 0;
 364 }
 365
 366 /**
 367  * connman_device_driver_unregister:
 368  * @driver: device driver definition
 369  *
 370  * Remove a previously registered device driver
 371  */
 372 void connman_device_driver_unregister(struct connman_device_driver *driver)
 373 {
 374         DBG("driver %p name %s", driver, driver->name);
 375
 376         driver_list = g_slist_remove(driver_list, driver);
 377
 378         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 379                                                 remove_driver, driver);
 380 }
 381
 382 static void unregister_network(gpointer data)
 383 {
 384         struct connman_network *network = data;
 385
 386         DBG("network %p", network);
 387
 388         connman_element_unregister((struct connman_element *) network);
 389
 390         __connman_network_set_device(network, NULL);
 391
 392         connman_network_unref(network);
 393 }
 394
 395 static void device_destruct(struct connman_element *element)
 396 {
 397         struct connman_device *device = element->device;
 398
 399         DBG("element %p name %s", element, element->name);
 400
 401         clear_scan_trigger(device);
 402
 403         g_free(device->ident);
 404         g_free(device->node);
 405         g_free(device->name);
 406         g_free(device->address);
 407         g_free(device->interface);
 408
 409         g_free(device->last_network);
 410
 411         g_hash_table_destroy(device->networks);
 412         device->networks = NULL;
 413 }
 414
 415 /**
 416  * connman_device_create:
 417  * @node: device node name (for example an address)
 418  * @type: device type
 419  *
 420  * Allocate a new device of given #type and assign the #node name to it.
 421  *
 422  * Returns: a newly-allocated #connman_device structure
 423  */
 424 struct connman_device *connman_device_create(const char *node,
 425                                                 enum connman_device_type type)
 426 {
 427         struct connman_device *device;
 428         const char *str;
 429         enum connman_service_type service_type;
 430
 431         DBG("node %s type %d", node, type);
 432
 433         device = g_try_new0(struct connman_device, 1);
 434         if (device == NULL)
 435                 return NULL;
 436
 437         DBG("device %p", device);
 438
 439         __connman_element_initialize(&device->element);
 440
 441         device->element.name = g_strdup(node);
 442         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 443
 444         device->element.device = device;
 445         device->element.destruct = device_destruct;
 446
 447         str = type2string(type);
 448         if (str != NULL)
 449                 connman_element_set_string(&device->element,
 450                                         CONNMAN_PROPERTY_ID_TYPE, str);
 451
 452         device->element.ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
 453
 454         device->type = type;
 455         device->name = g_strdup(type2description(device->type));
 456
 457         device->powered_persistent = TRUE;
 458
 459         device->phyindex = -1;
 460
 461         service_type = __connman_device_get_service_type(device);
 462         device->blocked = __connman_technology_get_blocked(service_type);
 463
 464         switch (type) {
 465         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 466         case CONNMAN_DEVICE_TYPE_VENDOR:
 467                 device->scan_interval = 0;
 468                 break;
 469         case CONNMAN_DEVICE_TYPE_ETHERNET:
 470         case CONNMAN_DEVICE_TYPE_WIFI:
 471                 device->scan_interval = 300;
 472                 break;
 473         case CONNMAN_DEVICE_TYPE_WIMAX:
 474                 device->scan_interval = 0;
 475                 break;
 476         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 477                 device->scan_interval = 0;
 478                 break;
 479         case CONNMAN_DEVICE_TYPE_GPS:
 480                 device->scan_interval = 0;
 481                 break;
 482         case CONNMAN_DEVICE_TYPE_CELLULAR:
 483                 device->scan_interval = 0;
 484                 break;
 485         }
 486
 487         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 488                                                 g_free, unregister_network);
 489
 490         return device;
 491 }
 492
 493 /**
 494  * connman_device_ref:
 495  * @device: device structure
 496  *
 497  * Increase reference counter of device
 498  */
 499 struct connman_device *connman_device_ref(struct connman_device *device)
 500 {
 501         if (connman_element_ref(&device->element) == NULL)
 502                 return NULL;
 503
 504         return device;
 505 }
 506
 507 /**
 508  * connman_device_unref:
 509  * @device: device structure
 510  *
 511  * Decrease reference counter of device
 512  */
 513 void connman_device_unref(struct connman_device *device)
 514 {
 515         connman_element_unref(&device->element);
 516 }
 517
 518 const char *__connman_device_get_type(struct connman_device *device)
 519 {
 520         return type2string(device->type);
 521 }
 522
 523 /**
 524  * connman_device_get_type:
 525  * @device: device structure
 526  *
 527  * Get type of device
 528  */
 529 enum connman_device_type connman_device_get_type(struct connman_device *device)
 530 {
 531         return device->type;
 532 }
 533
 534 /**
 535  * connman_device_set_index:
 536  * @device: device structure
 537  * @index: index number
 538  *
 539  * Set index number of device
 540  */
 541 void connman_device_set_index(struct connman_device *device, int index)
 542 {
 543         device->element.index = index;
 544 }
 545
 546 /**
 547  * connman_device_get_index:
 548  * @device: device structure
 549  *
 550  * Get index number of device
 551  */
 552 int connman_device_get_index(struct connman_device *device)
 553 {
 554         return device->element.index;
 555 }
 556
 557 int __connman_device_get_phyindex(struct connman_device *device)
 558 {
 559         return device->phyindex;
 560 }
 561
 562 void __connman_device_set_phyindex(struct connman_device *device,
 563                                                         int phyindex)
 564 {
 565         device->phyindex = phyindex;
 566 }
 567
 568 /**
 569  * connman_device_set_interface:
 570  * @device: device structure
 571  * @interface: interface name
 572  *
 573  * Set interface name of device
 574  */
 575 void connman_device_set_interface(struct connman_device *device,
 576                                                 const char *interface)
 577 {
 578         g_free(device->element.devname);
 579         device->element.devname = g_strdup(interface);
 580
 581         g_free(device->interface);
 582         device->interface = g_strdup(interface);
 583
 584         if (device->name == NULL) {
 585                 const char *str = type2description(device->type);
 586                 if (str != NULL && device->interface != NULL)
 587                         device->name = g_strdup_printf("%s (%s)", str,
 588                                                         device->interface);
 589         }
 590 }
 591
 592 /**
 593  * connman_device_set_ident:
 594  * @device: device structure
 595  * @ident: unique identifier
 596  *
 597  * Set unique identifier of device
 598  */
 599 void connman_device_set_ident(struct connman_device *device,
 600                                                         const char *ident)
 601 {
 602         g_free(device->ident);
 603         device->ident = g_strdup(ident);
 604 }
 605
 606 const char *connman_device_get_ident(struct connman_device *device)
 607 {
 608         return device->ident;
 609 }
 610
 611 /**
 612  * connman_device_set_powered:
 613  * @device: device structure
 614  * @powered: powered state
 615  *
 616  * Change power state of device
 617  */
 618 int connman_device_set_powered(struct connman_device *device,
 619                                                 connman_bool_t powered)
 620 {
 621         DBG("driver %p powered %d", device, powered);
 622
 623         if (device->powered == powered) {
 624                 device->powered_pending = powered;
 625                 return -EALREADY;
 626         }
 627
 628         if (powered == TRUE)
 629                 __connman_device_enable(device);
 630         else
 631                 __connman_device_disable(device);
 632
 633         device->powered = powered;
 634         device->powered_pending = powered;
 635
 636         if (device->powered == TRUE)
 637                 __connman_technology_enable_device(device);
 638         else
 639                 __connman_technology_disable_device(device);
 640
 641         if (device->offlinemode == TRUE && powered == TRUE)
 642                 return connman_device_set_powered(device, FALSE);
 643
 644         if (powered == FALSE)
 645                 return 0;
 646
 647         reset_scan_trigger(device);
 648
 649         if (device->driver->scan)
 650                 device->driver->scan(device);
 651
 652         return 0;
 653 }
 654
 655 int __connman_device_set_blocked(struct connman_device *device,
 656                                                 connman_bool_t blocked)
 657 {
 658         connman_bool_t powered;
 659
 660         DBG("device %p blocked %d", device, blocked);
 661
 662         device->blocked = blocked;
 663
 664         if (device->offlinemode == TRUE)
 665                 return 0;
 666
 667         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 668
 669         if (blocked == FALSE)
 670                 powered = device->powered_persistent;
 671         else
 672                 powered = FALSE;
 673
 674         return set_powered(device, powered);
 675 }
 676
 677 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 678 {
 679         return device->blocked;
 680 }
 681
 682 int __connman_device_scan(struct connman_device *device)
 683 {
 684         if (!device->driver || !device->driver->scan)
 685                 return -EOPNOTSUPP;
 686
 687         if (device->powered == FALSE)
 688                 return -ENOLINK;
 689
 690         reset_scan_trigger(device);
 691
 692         return device->driver->scan(device);
 693 }
 694
 695 int __connman_device_enable_persistent(struct connman_device *device)
 696 {
 697         int err;
 698
 699         DBG("device %p", device);
 700
 701         device->powered_persistent = TRUE;
 702
 703         __connman_storage_save_device(device);
 704
 705         err = __connman_device_enable(device);
 706         if (err == 0 || err == -EINPROGRESS) {
 707                 device->offlinemode = FALSE;
 708                 if (__connman_profile_get_offlinemode() == TRUE) {
 709                         __connman_profile_set_offlinemode(FALSE, FALSE);
 710
 711                         __connman_profile_save_default();
 712                 }
 713         }
 714
 715         return err;
 716 }
 717
 718 int __connman_device_disable_persistent(struct connman_device *device)
 719 {
 720         DBG("device %p", device);
 721
 722         device->powered_persistent = FALSE;
 723
 724         __connman_storage_save_device(device);
 725
 726         return __connman_device_disable(device);
 727 }
 728
 729 int __connman_device_disconnect(struct connman_device *device)
 730 {
 731         GHashTableIter iter;
 732         gpointer key, value;
 733
 734         DBG("device %p", device);
 735
 736         connman_device_set_disconnected(device, TRUE);
 737
 738         g_hash_table_iter_init(&iter, device->networks);
 739
 740         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 741                 struct connman_network *network = value;
 742
 743                 if (__connman_network_get_connecting(network) == TRUE) {
 744                         /*
 745                          * Skip network in the process of connecting.
 746                          * This is a workaround for WiFi networks serviced
 747                          * by the supplicant plugin that hold a reference
 748                          * to the network.  If we disconnect the network
 749                          * here then the referenced object will not be
 750                          * registered and usage (like launching DHCP client)
 751                          * will fail.  There is nothing to be gained by
 752                          * removing the network here anyway.
 753                          */
 754                         connman_warn("Skipping disconnect of %s",
 755                                 connman_network_get_identifier(network));
 756                         continue;
 757                 }
 758
 759                 __connman_network_disconnect(network);
 760         }
 761
 762         return 0;
 763 }
 764
 765 static void mark_network_unavailable(gpointer key, gpointer value,
 766                                                         gpointer user_data)
 767 {
 768         struct connman_network *network = value;
 769
 770         if (connman_network_get_connected(network) == TRUE)
 771                 return;
 772
 773         connman_network_set_available(network, FALSE);
 774 }
 775
 776 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 777                                                         gpointer user_data)
 778 {
 779         struct connman_network *network = value;
 780
 781         if (connman_network_get_connected(network) == TRUE)
 782                 return FALSE;
 783
 784         if (connman_network_get_available(network) == TRUE)
 785                 return FALSE;
 786
 787         return TRUE;
 788 }
 789
 790 void __connman_device_cleanup_networks(struct connman_device *device)
 791 {
 792         g_hash_table_foreach_remove(device->networks,
 793                                         remove_unavailable_network, NULL);
 794 }
 795
 796 /**
 797  * connman_device_set_scanning:
 798  * @device: device structure
 799  * @scanning: scanning state
 800  *
 801  * Change scanning state of device
 802  */
 803 int connman_device_set_scanning(struct connman_device *device,
 804                                                 connman_bool_t scanning)
 805 {
 806         DBG("device %p scanning %d", device, scanning);
 807
 808         if (!device->driver || !device->driver->scan)
 809                 return -EINVAL;
 810
 811         if (device->scanning == scanning)
 812                 return -EALREADY;
 813
 814         device->scanning = scanning;
 815
 816         if (scanning == TRUE) {
 817                 reset_scan_trigger(device);
 818
 819                 g_hash_table_foreach(device->networks,
 820                                         mark_network_unavailable, NULL);
 821
 822                 return 0;
 823         }
 824
 825         __connman_device_cleanup_networks(device);
 826
 827         if (device->connections > 0)
 828                 return 0;
 829
 830         if (device->disconnected == TRUE)
 831                 return 0;
 832
 833         __connman_service_auto_connect();
 834
 835         return 0;
 836 }
 837
 838 /**
 839  * connman_device_set_disconnected:
 840  * @device: device structure
 841  * @disconnected: disconnected state
 842  *
 843  * Change disconnected state of device (only for device with networks)
 844  */
 845 int connman_device_set_disconnected(struct connman_device *device,
 846                                                 connman_bool_t disconnected)
 847 {
 848         DBG("device %p disconnected %d", device, disconnected);
 849
 850         if (device->disconnected == disconnected)
 851                 return -EALREADY;
 852
 853         device->disconnected = disconnected;
 854
 855         if (disconnected == TRUE)
 856                 force_scan_trigger(device);
 857
 858         return 0;
 859 }
 860
 861 /**
 862  * connman_device_get_disconnected:
 863  * @device: device structure
 864  *
 865  * Get device disconnected state
 866  */
 867 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 868 {
 869         return device->disconnected;
 870 }
 871
 872 /**
 873  * connman_device_set_string:
 874  * @device: device structure
 875  * @key: unique identifier
 876  * @value: string value
 877  *
 878  * Set string value for specific key
 879  */
 880 int connman_device_set_string(struct connman_device *device,
 881                                         const char *key, const char *value)
 882 {
 883         DBG("device %p key %s value %s", device, key, value);
 884
 885         if (g_str_equal(key, "Address") == TRUE) {
 886                 g_free(device->address);
 887                 device->address = g_strdup(value);
 888         } else if (g_str_equal(key, "Name") == TRUE) {
 889                 g_free(device->name);
 890                 device->name = g_strdup(value);
 891         } else if (g_str_equal(key, "Node") == TRUE) {
 892                 g_free(device->node);
 893                 device->node = g_strdup(value);
 894         }
 895
 896         return connman_element_set_string(&device->element, key, value);
 897 }
 898
 899 /**
 900  * connman_device_get_string:
 901  * @device: device structure
 902  * @key: unique identifier
 903  *
 904  * Get string value for specific key
 905  */
 906 const char *connman_device_get_string(struct connman_device *device,
 907                                                         const char *key)
 908 {
 909         DBG("device %p key %s", device, key);
 910
 911         if (g_str_equal(key, "Address") == TRUE)
 912                 return device->address;
 913         else if (g_str_equal(key, "Name") == TRUE)
 914                 return device->name;
 915         else if (g_str_equal(key, "Node") == TRUE)
 916                 return device->node;
 917         else if (g_str_equal(key, "Interface") == TRUE)
 918                 return device->interface;
 919
 920         return connman_element_get_string(&device->element, key);
 921 }
 922
 923 static void set_offlinemode(struct connman_element *element, gpointer user_data)
 924 {
 925         struct connman_device *device = element->device;
 926         connman_bool_t offlinemode = GPOINTER_TO_UINT(user_data);
 927         connman_bool_t powered;
 928
 929         DBG("element %p name %s", element, element->name);
 930
 931         if (device == NULL)
 932                 return;
 933
 934         device->offlinemode = offlinemode;
 935
 936         if (device->blocked == TRUE)
 937                 return;
 938
 939         powered = (offlinemode == TRUE) ? FALSE : TRUE;
 940
 941         if (device->powered == powered)
 942                 return;
 943
 944         if (device->powered_persistent == FALSE)
 945                 powered = FALSE;
 946
 947         set_powered(device, powered);
 948 }
 949
 950 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
 951 {
 952         DBG("offlinmode %d", offlinemode);
 953
 954         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 955                         set_offlinemode, GUINT_TO_POINTER(offlinemode));
 956
 957         __connman_notifier_offlinemode(offlinemode);
 958
 959         return 0;
 960 }
 961
 962 void __connman_device_increase_connections(struct connman_device *device)
 963 {
 964         if (device == NULL)
 965                 return;
 966
 967         device->connections++;
 968 }
 969
 970 void __connman_device_decrease_connections(struct connman_device *device)
 971 {
 972         if (device == NULL)
 973                 return;
 974
 975         device->connections--;
 976 }
 977
 978 /**
 979  * connman_device_add_network:
 980  * @device: device structure
 981  * @network: network structure
 982  *
 983  * Add new network to the device
 984  */
 985 int connman_device_add_network(struct connman_device *device,
 986                                         struct connman_network *network)
 987 {
 988         const char *identifier = connman_network_get_identifier(network);
 989         int err;
 990
 991         DBG("device %p network %p", device, network);
 992
 993         if (identifier == NULL)
 994                 return -EINVAL;
 995
 996         __connman_network_set_device(network, device);
 997
 998         err = connman_element_register((struct connman_element *) network,
 999                                                         &device->element);
1000         if (err < 0) {
1001                 __connman_network_set_device(network, NULL);
1002                 return err;
1003         }
1004
1005         g_hash_table_insert(device->networks, g_strdup(identifier),
1006                                                                 network);
1007
1008         return 0;
1009 }
1010
1011 /**
1012  * connman_device_get_network:
1013  * @device: device structure
1014  * @identifier: network identifier
1015  *
1016  * Get network for given identifier
1017  */
1018 struct connman_network *connman_device_get_network(struct connman_device *device,
1019                                                         const char *identifier)
1020 {
1021         DBG("device %p identifier %s", device, identifier);
1022
1023         return g_hash_table_lookup(device->networks, identifier);
1024 }
1025
1026 /**
1027  * connman_device_remove_network:
1028  * @device: device structure
1029  * @identifier: network identifier
1030  *
1031  * Remove network for given identifier
1032  */
1033 int connman_device_remove_network(struct connman_device *device,
1034                                                         const char *identifier)
1035 {
1036         DBG("device %p identifier %s", device, identifier);
1037
1038         g_hash_table_remove(device->networks, identifier);
1039
1040         return 0;
1041 }
1042
1043 void connman_device_remove_all_networks(struct connman_device *device)
1044 {
1045         g_hash_table_remove_all(device->networks);
1046 }
1047
1048 void __connman_device_set_network(struct connman_device *device,
1049                                         struct connman_network *network)
1050 {
1051         const char *name;
1052
1053         if (device == NULL)
1054                 return;
1055
1056         if (device->network == network)
1057                 return;
1058
1059         if (device->network != NULL)
1060                 connman_network_unref(device->network);
1061
1062         if (network != NULL) {
1063                 name = connman_network_get_string(network,
1064                                                 CONNMAN_PROPERTY_ID_NAME);
1065                 g_free(device->last_network);
1066                 device->last_network = g_strdup(name);
1067
1068                 device->network = connman_network_ref(network);
1069         } else {
1070                 g_free(device->last_network);
1071                 device->last_network = NULL;
1072
1073                 device->network = NULL;
1074         }
1075 }
1076
1077 void __connman_device_set_reconnect(struct connman_device *device,
1078                                                 connman_bool_t reconnect)
1079 {
1080         device->reconnect = reconnect;
1081 }
1082
1083 connman_bool_t  __connman_device_get_reconnect(
1084                                 struct connman_device *device)
1085 {
1086         return device->reconnect;
1087 }
1088
1089 /**
1090  * connman_device_register:
1091  * @device: device structure
1092  *
1093  * Register device with the system
1094  */
1095 int connman_device_register(struct connman_device *device)
1096 {
1097         __connman_storage_load_device(device);
1098
1099         device->offlinemode = __connman_profile_get_offlinemode();
1100
1101         return connman_element_register(&device->element, NULL);
1102 }
1103
1104 /**
1105  * connman_device_unregister:
1106  * @device: device structure
1107  *
1108  * Unregister device with the system
1109  */
1110 void connman_device_unregister(struct connman_device *device)
1111 {
1112         __connman_storage_save_device(device);
1113
1114         connman_element_unregister(&device->element);
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 static gboolean match_driver(struct connman_device *device,
1141                                         struct connman_device_driver *driver)
1142 {
1143         if (device->type == driver->type ||
1144                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1145                 return TRUE;
1146
1147         return FALSE;
1148 }
1149
1150 static int device_probe(struct connman_element *element)
1151 {
1152         struct connman_device *device = element->device;
1153         GSList *list;
1154
1155         DBG("element %p name %s", element, element->name);
1156
1157         if (device == NULL)
1158                 return -ENODEV;
1159
1160         if (device->driver != NULL)
1161                 return -EALREADY;
1162
1163         for (list = driver_list; list; list = list->next) {
1164                 struct connman_device_driver *driver = list->data;
1165
1166                 if (match_driver(device, driver) == FALSE)
1167                         continue;
1168
1169                 DBG("driver %p name %s", driver, driver->name);
1170
1171                 if (driver->probe(device) == 0) {
1172                         device->driver = driver;
1173                         break;
1174                 }
1175         }
1176
1177         if (device->driver == NULL)
1178                 return -ENODEV;
1179
1180         return setup_device(device);
1181 }
1182
1183 static void device_remove(struct connman_element *element)
1184 {
1185         struct connman_device *device = element->device;
1186
1187         DBG("element %p name %s", element, element->name);
1188
1189         if (device == NULL)
1190                 return;
1191
1192         if (device->driver == NULL)
1193                 return;
1194
1195         remove_device(device);
1196 }
1197
1198 static struct connman_driver device_driver = {
1199         .name           = "device",
1200         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1201         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1202         .probe          = device_probe,
1203         .remove         = device_remove,
1204 };
1205
1206 static int device_load(struct connman_device *device)
1207 {
1208         const char *ident = __connman_profile_active_ident();
1209         GKeyFile *keyfile;
1210         GError *error = NULL;
1211         gchar *identifier;
1212         connman_bool_t powered;
1213         int val;
1214
1215         DBG("device %p", device);
1216
1217         keyfile = __connman_storage_open_profile(ident);
1218         if (keyfile == NULL)
1219                 return 0;
1220
1221         identifier = g_strdup_printf("device_%s", device->element.name);
1222         if (identifier == NULL)
1223                 goto done;
1224
1225         powered = g_key_file_get_boolean(keyfile, identifier,
1226                                                 "Powered", &error);
1227         if (error == NULL)
1228                 device->powered_persistent = powered;
1229         g_clear_error(&error);
1230
1231         val = g_key_file_get_integer(keyfile, identifier,
1232                                                 "ScanInterval", &error);
1233         if (error == NULL)
1234                 device->scan_interval = val;
1235         g_clear_error(&error);
1236
1237 done:
1238         g_free(identifier);
1239
1240         __connman_storage_close_profile(ident, keyfile, FALSE);
1241
1242         return 0;
1243 }
1244
1245 static int device_save(struct connman_device *device)
1246 {
1247         const char *ident = __connman_profile_active_ident();
1248         GKeyFile *keyfile;
1249         gchar *identifier;
1250
1251         DBG("device %p", device);
1252
1253         keyfile = __connman_storage_open_profile(ident);
1254         if (keyfile == NULL)
1255                 return 0;
1256
1257         identifier = g_strdup_printf("device_%s", device->element.name);
1258         if (identifier == NULL)
1259                 goto done;
1260
1261         g_key_file_set_boolean(keyfile, identifier,
1262                                         "Powered", device->powered_persistent);
1263
1264         g_key_file_set_integer(keyfile, identifier,
1265                                         "ScanInterval", device->scan_interval);
1266
1267 done:
1268         g_free(identifier);
1269
1270         __connman_storage_close_profile(ident, keyfile, TRUE);
1271
1272         return 0;
1273 }
1274
1275 static struct connman_storage device_storage = {
1276         .name           = "device",
1277         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1278         .device_load    = device_load,
1279         .device_save    = device_save,
1280 };
1281
1282 int __connman_device_init(void)
1283 {
1284         DBG("");
1285
1286         if (connman_storage_register(&device_storage) < 0)
1287                 connman_error("Failed to register device storage");
1288
1289         return connman_driver_register(&device_driver);
1290 }
1291
1292 void __connman_device_cleanup(void)
1293 {
1294         DBG("");
1295
1296         connman_driver_unregister(&device_driver);
1297
1298         connman_storage_unregister(&device_storage);
1299 }