src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include "connman.h"
  30
  31 static GSList *device_list = NULL;
  32 static gchar **device_filter = NULL;
  33 static gchar **nodevice_filter = NULL;
  34
  35 struct connman_device {
  36         gint refcount;
  37         enum connman_device_type type;
  38         connman_bool_t offlinemode;
  39         connman_bool_t blocked;
  40         connman_bool_t powered;
  41         connman_bool_t powered_pending;
  42         connman_bool_t powered_persistent;
  43         connman_bool_t scanning;
  44         connman_bool_t disconnected;
  45         connman_bool_t reconnect;
  46         connman_uint16_t scan_interval;
  47         connman_uint16_t backoff_interval;
  48         char *name;
  49         char *node;
  50         char *address;
  51         char *interface;
  52         char *ident;
  53         char *path;
  54         char *devname;
  55         int phyindex;
  56         int index;
  57         unsigned int connections;
  58         guint scan_timeout;
  59
  60         struct connman_device_driver *driver;
  61         void *driver_data;
  62
  63         char *last_network;
  64         struct connman_network *network;
  65         GHashTable *networks;
  66 };
  67
  68 #define SCAN_INITIAL_DELAY 10
  69
  70 static gboolean device_scan_trigger(gpointer user_data)
  71 {
  72         struct connman_device *device = user_data;
  73
  74         DBG("device %p", device);
  75
  76         if (device->driver == NULL) {
  77                 device->scan_timeout = 0;
  78                 return FALSE;
  79         }
  80
  81         if (device->driver->scan)
  82                 device->driver->scan(device);
  83
  84         return TRUE;
  85 }
  86
  87 static void clear_scan_trigger(struct connman_device *device)
  88 {
  89         if (device->scan_timeout > 0) {
  90                 g_source_remove(device->scan_timeout);
  91                 device->scan_timeout = 0;
  92         }
  93 }
  94
  95 static void reset_scan_trigger(struct connman_device *device)
  96 {
  97         clear_scan_trigger(device);
  98
  99         if (device->scan_interval > 0) {
 100                 guint interval;
 101
 102                 if (g_hash_table_size(device->networks) == 0) {
 103                         if (device->backoff_interval >= device->scan_interval)
 104                                 device->backoff_interval = SCAN_INITIAL_DELAY;
 105                         interval = device->backoff_interval;
 106                 } else
 107                         interval = device->scan_interval;
 108
 109                 DBG("interval %d", interval);
 110
 111                 device->scan_timeout = g_timeout_add_seconds(interval,
 112                                         device_scan_trigger, device);
 113
 114                 device->backoff_interval *= 2;
 115                 if (device->backoff_interval > device->scan_interval)
 116                         device->backoff_interval = device->scan_interval;
 117         }
 118 }
 119
 120 static void force_scan_trigger(struct connman_device *device)
 121 {
 122         clear_scan_trigger(device);
 123
 124         device->scan_timeout = g_timeout_add_seconds(5,
 125                                         device_scan_trigger, device);
 126 }
 127
 128 void connman_device_schedule_scan(struct connman_device *device)
 129 {
 130         reset_scan_trigger(device);
 131 }
 132
 133 static const char *type2description(enum connman_device_type type)
 134 {
 135         switch (type) {
 136         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 137         case CONNMAN_DEVICE_TYPE_VENDOR:
 138                 break;
 139         case CONNMAN_DEVICE_TYPE_ETHERNET:
 140                 return "Ethernet";
 141         case CONNMAN_DEVICE_TYPE_WIFI:
 142                 return "Wireless";
 143         case CONNMAN_DEVICE_TYPE_WIMAX:
 144                 return "WiMAX";
 145         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 146                 return "Bluetooth";
 147         case CONNMAN_DEVICE_TYPE_GPS:
 148                 return "GPS";
 149         case CONNMAN_DEVICE_TYPE_CELLULAR:
 150                 return "Cellular";
 151         case CONNMAN_DEVICE_TYPE_GADGET:
 152                 return "Gadget";
 153
 154         }
 155
 156         return NULL;
 157 }
 158
 159 static const char *type2string(enum connman_device_type type)
 160 {
 161         switch (type) {
 162         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 163         case CONNMAN_DEVICE_TYPE_VENDOR:
 164                 break;
 165         case CONNMAN_DEVICE_TYPE_ETHERNET:
 166                 return "ethernet";
 167         case CONNMAN_DEVICE_TYPE_WIFI:
 168                 return "wifi";
 169         case CONNMAN_DEVICE_TYPE_WIMAX:
 170                 return "wimax";
 171         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 172                 return "bluetooth";
 173         case CONNMAN_DEVICE_TYPE_GPS:
 174                 return "gps";
 175         case CONNMAN_DEVICE_TYPE_CELLULAR:
 176                 return "cellular";
 177         case CONNMAN_DEVICE_TYPE_GADGET:
 178                 return "gadget";
 179
 180         }
 181
 182         return NULL;
 183 }
 184
 185 enum connman_service_type __connman_device_get_service_type(struct connman_device *device)
 186 {
 187         enum connman_device_type type = connman_device_get_type(device);
 188
 189         switch (type) {
 190         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 191         case CONNMAN_DEVICE_TYPE_VENDOR:
 192         case CONNMAN_DEVICE_TYPE_GPS:
 193                 break;
 194         case CONNMAN_DEVICE_TYPE_ETHERNET:
 195                 return CONNMAN_SERVICE_TYPE_ETHERNET;
 196         case CONNMAN_DEVICE_TYPE_WIFI:
 197                 return CONNMAN_SERVICE_TYPE_WIFI;
 198         case CONNMAN_DEVICE_TYPE_WIMAX:
 199                 return CONNMAN_SERVICE_TYPE_WIMAX;
 200         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 201                 return CONNMAN_SERVICE_TYPE_BLUETOOTH;
 202         case CONNMAN_DEVICE_TYPE_CELLULAR:
 203                 return CONNMAN_SERVICE_TYPE_CELLULAR;
 204         case CONNMAN_DEVICE_TYPE_GADGET:
 205                 return CONNMAN_SERVICE_TYPE_GADGET;
 206
 207         }
 208
 209         return CONNMAN_SERVICE_TYPE_UNKNOWN;
 210 }
 211
 212 int __connman_device_enable(struct connman_device *device)
 213 {
 214         int err;
 215         enum connman_service_type type;
 216
 217         DBG("device %p %d", device, device->blocked);
 218
 219         if (!device->driver || !device->driver->enable)
 220                 return -EOPNOTSUPP;
 221
 222         if (device->powered_pending == TRUE)
 223                 return -EALREADY;
 224
 225         if (device->blocked == TRUE)
 226                 return -ENOLINK;
 227
 228         connman_device_set_disconnected(device, FALSE);
 229         device->scanning = FALSE;
 230
 231         err = device->driver->enable(device);
 232         if (err < 0 && err != -EALREADY) {
 233                 if (err == -EINPROGRESS) {
 234                         device->powered_pending = TRUE;
 235                         device->offlinemode = FALSE;
 236                         if (__connman_profile_get_offlinemode() == TRUE)
 237                                 __connman_profile_set_offlinemode(FALSE, FALSE);
 238                 }
 239                 return err;
 240         }
 241
 242         device->powered_pending = TRUE;
 243         device->powered = TRUE;
 244         device->offlinemode = FALSE;
 245         if (__connman_profile_get_offlinemode() == TRUE)
 246                 __connman_profile_set_offlinemode(FALSE, FALSE);
 247
 248         type = __connman_device_get_service_type(device);
 249         __connman_technology_enable(type);
 250
 251         return 0;
 252 }
 253
 254 int __connman_device_disable(struct connman_device *device)
 255 {
 256         int err;
 257         enum connman_service_type type;
 258
 259         DBG("device %p", device);
 260
 261         if (!device->driver || !device->driver->disable)
 262                 return -EOPNOTSUPP;
 263
 264         if (device->powered == FALSE)
 265                 return -ENOLINK;
 266
 267         if (device->powered_pending == FALSE)
 268                 return -EALREADY;
 269
 270         device->reconnect = FALSE;
 271
 272         clear_scan_trigger(device);
 273
 274         g_hash_table_remove_all(device->networks);
 275
 276         err = device->driver->disable(device);
 277         if (err < 0 && err != -EALREADY) {
 278                 if (err == -EINPROGRESS)
 279                         device->powered_pending = FALSE;
 280                 return err;
 281         }
 282
 283         device->connections = 0;
 284
 285         device->powered_pending = FALSE;
 286         device->powered = FALSE;
 287
 288         type = __connman_device_get_service_type(device);
 289         __connman_technology_disable(type);
 290
 291         return 0;
 292 }
 293
 294 static int set_powered(struct connman_device *device, connman_bool_t powered)
 295 {
 296         DBG("device %p powered %d", device, powered);
 297
 298         if (powered == TRUE)
 299                 return __connman_device_enable(device);
 300         else
 301                 return __connman_device_disable(device);
 302 }
 303
 304 static int setup_device(struct connman_device *device)
 305 {
 306         DBG("device %p", device);
 307
 308         __connman_technology_add_device(device);
 309
 310         if (device->offlinemode == FALSE &&
 311                                 device->powered_persistent == TRUE)
 312                 __connman_device_enable(device);
 313
 314         return 0;
 315 }
 316
 317 static void probe_driver(struct connman_device_driver *driver)
 318 {
 319         GSList *list;
 320
 321         DBG("driver %p name %s", driver, driver->name);
 322
 323         for (list = device_list; list != NULL; list = list->next) {
 324                 struct connman_device *device = list->data;
 325
 326                 if (device->driver != NULL)
 327                         continue;
 328
 329                 if (driver->type != device->type)
 330                         continue;
 331
 332                 if (driver->probe(device) < 0)
 333                         continue;
 334
 335                 device->driver = driver;
 336
 337                 setup_device(device);
 338         }
 339 }
 340
 341 static void remove_device(struct connman_device *device)
 342 {
 343         DBG("device %p", device);
 344
 345         __connman_device_disable(device);
 346
 347         __connman_technology_remove_device(device);
 348
 349         if (device->driver->remove)
 350                 device->driver->remove(device);
 351
 352         device->driver = NULL;
 353 }
 354
 355 static void remove_driver(struct connman_device_driver *driver)
 356 {
 357         GSList *list;
 358
 359         DBG("driver %p name %s", driver, driver->name);
 360
 361         for (list = device_list; list != NULL; list = list->next) {
 362                 struct connman_device *device = list->data;
 363
 364                 if (device->driver == driver)
 365                         remove_device(device);
 366         }
 367 }
 368
 369 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 370 {
 371         if (device == NULL || device->driver == NULL)
 372                 return FALSE;
 373
 374         return TRUE;
 375 }
 376
 377 static GSList *driver_list = NULL;
 378
 379 static gint compare_priority(gconstpointer a, gconstpointer b)
 380 {
 381         const struct connman_device_driver *driver1 = a;
 382         const struct connman_device_driver *driver2 = b;
 383
 384         return driver2->priority - driver1->priority;
 385 }
 386
 387 /**
 388  * connman_device_driver_register:
 389  * @driver: device driver definition
 390  *
 391  * Register a new device driver
 392  *
 393  * Returns: %0 on success
 394  */
 395 int connman_device_driver_register(struct connman_device_driver *driver)
 396 {
 397         DBG("driver %p name %s", driver, driver->name);
 398
 399         driver_list = g_slist_insert_sorted(driver_list, driver,
 400                                                         compare_priority);
 401         probe_driver(driver);
 402
 403         return 0;
 404 }
 405
 406 /**
 407  * connman_device_driver_unregister:
 408  * @driver: device driver definition
 409  *
 410  * Remove a previously registered device driver
 411  */
 412 void connman_device_driver_unregister(struct connman_device_driver *driver)
 413 {
 414         DBG("driver %p name %s", driver, driver->name);
 415
 416         driver_list = g_slist_remove(driver_list, driver);
 417
 418         remove_driver(driver);
 419 }
 420
 421 static void unregister_network(gpointer data)
 422 {
 423         struct connman_network *network = data;
 424
 425         DBG("network %p", network);
 426
 427         __connman_network_set_device(network, NULL);
 428
 429         connman_network_unregister(network);
 430         connman_network_unref(network);
 431 }
 432
 433 static void device_destruct(struct connman_device *device)
 434 {
 435         DBG("device %p name %s", device, device->name);
 436
 437         clear_scan_trigger(device);
 438
 439         g_free(device->ident);
 440         g_free(device->node);
 441         g_free(device->name);
 442         g_free(device->address);
 443         g_free(device->interface);
 444         g_free(device->path);
 445         g_free(device->devname);
 446
 447         g_free(device->last_network);
 448
 449         g_hash_table_destroy(device->networks);
 450         device->networks = NULL;
 451
 452         g_free(device);
 453 }
 454
 455 /**
 456  * connman_device_create:
 457  * @node: device node name (for example an address)
 458  * @type: device type
 459  *
 460  * Allocate a new device of given #type and assign the #node name to it.
 461  *
 462  * Returns: a newly-allocated #connman_device structure
 463  */
 464 struct connman_device *connman_device_create(const char *node,
 465                                                 enum connman_device_type type)
 466 {
 467         struct connman_device *device;
 468         enum connman_service_type service_type;
 469         connman_bool_t bg_scan;
 470
 471         DBG("node %s type %d", node, type);
 472
 473         device = g_try_new0(struct connman_device, 1);
 474         if (device == NULL)
 475                 return NULL;
 476
 477         DBG("device %p", device);
 478
 479         device->refcount = 1;
 480
 481         bg_scan = connman_setting_get_bool("BackgroundScanning");
 482
 483         device->type = type;
 484         device->name = g_strdup(type2description(device->type));
 485
 486         device->powered_persistent = TRUE;
 487
 488         device->phyindex = -1;
 489
 490         service_type = __connman_device_get_service_type(device);
 491         device->blocked = __connman_technology_get_blocked(service_type);
 492         device->backoff_interval = SCAN_INITIAL_DELAY;
 493
 494         switch (type) {
 495         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 496         case CONNMAN_DEVICE_TYPE_ETHERNET:
 497         case CONNMAN_DEVICE_TYPE_WIMAX:
 498         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 499         case CONNMAN_DEVICE_TYPE_CELLULAR:
 500         case CONNMAN_DEVICE_TYPE_GPS:
 501         case CONNMAN_DEVICE_TYPE_GADGET:
 502         case CONNMAN_DEVICE_TYPE_VENDOR:
 503                 device->scan_interval = 0;
 504                 break;
 505         case CONNMAN_DEVICE_TYPE_WIFI:
 506                 if (bg_scan == TRUE)
 507                         device->scan_interval = 300;
 508                 else
 509                         device->scan_interval = 0;
 510                 break;
 511         }
 512
 513         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 514                                                 g_free, unregister_network);
 515
 516         device_list = g_slist_append(device_list, device);
 517
 518         return device;
 519 }
 520
 521 /**
 522  * connman_device_ref:
 523  * @device: device structure
 524  *
 525  * Increase reference counter of device
 526  */
 527 struct connman_device *connman_device_ref(struct connman_device *device)
 528 {
 529         DBG("%p", device);
 530
 531         g_atomic_int_inc(&device->refcount);
 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         if (g_atomic_int_dec_and_test(&device->refcount) == FALSE)
 545                 return;
 546
 547         if (device->driver) {
 548                 device->driver->remove(device);
 549                 device->driver = NULL;
 550         }
 551
 552         device_list = g_slist_remove(device_list, device);
 553
 554         device_destruct(device);
 555 }
 556
 557 const char *__connman_device_get_type(struct connman_device *device)
 558 {
 559         return type2string(device->type);
 560 }
 561
 562 /**
 563  * connman_device_get_type:
 564  * @device: device structure
 565  *
 566  * Get type of device
 567  */
 568 enum connman_device_type connman_device_get_type(struct connman_device *device)
 569 {
 570         return device->type;
 571 }
 572
 573 /**
 574  * connman_device_set_index:
 575  * @device: device structure
 576  * @index: index number
 577  *
 578  * Set index number of device
 579  */
 580 void connman_device_set_index(struct connman_device *device, int index)
 581 {
 582         device->index = index;
 583 }
 584
 585 /**
 586  * connman_device_get_index:
 587  * @device: device structure
 588  *
 589  * Get index number of device
 590  */
 591 int connman_device_get_index(struct connman_device *device)
 592 {
 593         return device->index;
 594 }
 595
 596 int __connman_device_get_phyindex(struct connman_device *device)
 597 {
 598         return device->phyindex;
 599 }
 600
 601 void __connman_device_set_phyindex(struct connman_device *device,
 602                                                         int phyindex)
 603 {
 604         device->phyindex = phyindex;
 605 }
 606
 607 /**
 608  * connman_device_set_interface:
 609  * @device: device structure
 610  * @interface: interface name
 611  *
 612  * Set interface name of device
 613  */
 614 void connman_device_set_interface(struct connman_device *device,
 615                                                 const char *interface)
 616 {
 617         g_free(device->devname);
 618         device->devname = g_strdup(interface);
 619
 620         g_free(device->interface);
 621         device->interface = g_strdup(interface);
 622
 623         if (device->name == NULL) {
 624                 const char *str = type2description(device->type);
 625                 if (str != NULL && device->interface != NULL)
 626                         device->name = g_strdup_printf("%s (%s)", str,
 627                                                         device->interface);
 628         }
 629 }
 630
 631 /**
 632  * connman_device_set_ident:
 633  * @device: device structure
 634  * @ident: unique identifier
 635  *
 636  * Set unique identifier of device
 637  */
 638 void connman_device_set_ident(struct connman_device *device,
 639                                                         const char *ident)
 640 {
 641         g_free(device->ident);
 642         device->ident = g_strdup(ident);
 643 }
 644
 645 const char *connman_device_get_ident(struct connman_device *device)
 646 {
 647         return device->ident;
 648 }
 649
 650 /**
 651  * connman_device_set_powered:
 652  * @device: device structure
 653  * @powered: powered state
 654  *
 655  * Change power state of device
 656  */
 657 int connman_device_set_powered(struct connman_device *device,
 658                                                 connman_bool_t powered)
 659 {
 660         int err;
 661         enum connman_service_type type;
 662
 663         DBG("driver %p powered %d", device, powered);
 664
 665         if (device->powered == powered) {
 666                 device->powered_pending = powered;
 667                 return -EALREADY;
 668         }
 669
 670         if (powered == TRUE)
 671                 err = __connman_device_enable(device);
 672         else
 673                 err = __connman_device_disable(device);
 674
 675         if (err < 0 && err != -EINPROGRESS && err != -EALREADY)
 676                 return err;
 677
 678         device->powered = powered;
 679         device->powered_pending = powered;
 680
 681         type = __connman_device_get_service_type(device);
 682
 683         if (device->powered == TRUE)
 684                 __connman_technology_enable(type);
 685         else
 686                 __connman_technology_disable(type);
 687
 688         if (device->offlinemode == TRUE && powered == TRUE)
 689                 return connman_device_set_powered(device, FALSE);
 690
 691         if (powered == FALSE)
 692                 return 0;
 693
 694         reset_scan_trigger(device);
 695
 696         if (device->driver && device->driver->scan)
 697                 device->driver->scan(device);
 698
 699         return 0;
 700 }
 701
 702 int __connman_device_set_blocked(struct connman_device *device,
 703                                                 connman_bool_t blocked)
 704 {
 705         connman_bool_t powered;
 706
 707         DBG("device %p blocked %d", device, blocked);
 708
 709         device->blocked = blocked;
 710
 711         if (device->offlinemode == TRUE)
 712                 return 0;
 713
 714         connman_info("%s {rfkill} blocked %d", device->interface, blocked);
 715
 716         if (blocked == FALSE)
 717                 powered = device->powered_persistent;
 718         else
 719                 powered = FALSE;
 720
 721         return set_powered(device, powered);
 722 }
 723
 724 connman_bool_t __connman_device_get_blocked(struct connman_device *device)
 725 {
 726         return device->blocked;
 727 }
 728
 729 int __connman_device_scan(struct connman_device *device)
 730 {
 731         if (!device->driver || !device->driver->scan)
 732                 return -EOPNOTSUPP;
 733
 734         if (device->powered == FALSE)
 735                 return -ENOLINK;
 736
 737         reset_scan_trigger(device);
 738
 739         return device->driver->scan(device);
 740 }
 741
 742 int __connman_device_enable_persistent(struct connman_device *device)
 743 {
 744         int err;
 745
 746         DBG("device %p", device);
 747
 748         device->powered_persistent = TRUE;
 749
 750         __connman_storage_save_device(device);
 751
 752         err = __connman_device_enable(device);
 753         if (err == 0 || err == -EINPROGRESS) {
 754                 device->offlinemode = FALSE;
 755                 if (__connman_profile_get_offlinemode() == TRUE) {
 756                         __connman_profile_set_offlinemode(FALSE, FALSE);
 757
 758                         __connman_profile_save_default();
 759                 }
 760         }
 761
 762         return err;
 763 }
 764
 765 int __connman_device_disable_persistent(struct connman_device *device)
 766 {
 767         DBG("device %p", device);
 768
 769         device->powered_persistent = FALSE;
 770
 771         __connman_storage_save_device(device);
 772
 773         return __connman_device_disable(device);
 774 }
 775
 776 int __connman_device_disconnect(struct connman_device *device)
 777 {
 778         GHashTableIter iter;
 779         gpointer key, value;
 780
 781         DBG("device %p", device);
 782
 783         connman_device_set_disconnected(device, TRUE);
 784
 785         g_hash_table_iter_init(&iter, device->networks);
 786
 787         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 788                 struct connman_network *network = value;
 789
 790                 if (connman_network_get_connecting(network) == TRUE) {
 791                         /*
 792                          * Skip network in the process of connecting.
 793                          * This is a workaround for WiFi networks serviced
 794                          * by the supplicant plugin that hold a reference
 795                          * to the network.  If we disconnect the network
 796                          * here then the referenced object will not be
 797                          * registered and usage (like launching DHCP client)
 798                          * will fail.  There is nothing to be gained by
 799                          * removing the network here anyway.
 800                          */
 801                         connman_warn("Skipping disconnect of %s, network is connecting.",
 802                                 connman_network_get_identifier(network));
 803                         continue;
 804                 }
 805
 806                 __connman_network_disconnect(network);
 807         }
 808
 809         return 0;
 810 }
 811
 812 static void mark_network_available(gpointer key, gpointer value,
 813                                                         gpointer user_data)
 814 {
 815         struct connman_network *network = value;
 816
 817         connman_network_set_available(network, TRUE);
 818 }
 819
 820 static void mark_network_unavailable(gpointer key, gpointer value,
 821                                                         gpointer user_data)
 822 {
 823         struct connman_network *network = value;
 824
 825         if (connman_network_get_connected(network) == TRUE)
 826                 return;
 827
 828         connman_network_set_available(network, FALSE);
 829 }
 830
 831 static gboolean remove_unavailable_network(gpointer key, gpointer value,
 832                                                         gpointer user_data)
 833 {
 834         struct connman_network *network = value;
 835
 836         if (connman_network_get_connected(network) == TRUE)
 837                 return FALSE;
 838
 839         if (connman_network_get_available(network) == TRUE)
 840                 return FALSE;
 841
 842         return TRUE;
 843 }
 844
 845 void __connman_device_cleanup_networks(struct connman_device *device)
 846 {
 847         g_hash_table_foreach_remove(device->networks,
 848                                         remove_unavailable_network, NULL);
 849 }
 850
 851 connman_bool_t __connman_device_scanning(struct connman_device *device)
 852 {
 853         return device->scanning;
 854 }
 855
 856 void connman_device_reset_scanning(struct connman_device *device)
 857 {
 858         device->scanning = FALSE;
 859
 860         g_hash_table_foreach(device->networks,
 861                                 mark_network_available, NULL);
 862
 863 }
 864
 865 /**
 866  * connman_device_set_scanning:
 867  * @device: device structure
 868  * @scanning: scanning state
 869  *
 870  * Change scanning state of device
 871  */
 872 int connman_device_set_scanning(struct connman_device *device,
 873                                                 connman_bool_t scanning)
 874 {
 875         DBG("device %p scanning %d", device, scanning);
 876
 877         if (!device->driver || !device->driver->scan)
 878                 return -EINVAL;
 879
 880         if (device->scanning == scanning)
 881                 return -EALREADY;
 882
 883         device->scanning = scanning;
 884
 885         if (scanning == TRUE) {
 886                 reset_scan_trigger(device);
 887
 888                 g_hash_table_foreach(device->networks,
 889                                         mark_network_unavailable, NULL);
 890
 891                 return 0;
 892         }
 893
 894         __connman_device_cleanup_networks(device);
 895
 896         if (device->connections > 0)
 897                 return 0;
 898
 899         __connman_service_auto_connect();
 900
 901         return 0;
 902 }
 903
 904 /**
 905  * connman_device_set_disconnected:
 906  * @device: device structure
 907  * @disconnected: disconnected state
 908  *
 909  * Change disconnected state of device (only for device with networks)
 910  */
 911 int connman_device_set_disconnected(struct connman_device *device,
 912                                                 connman_bool_t disconnected)
 913 {
 914         DBG("device %p disconnected %d", device, disconnected);
 915
 916         if (device->disconnected == disconnected)
 917                 return -EALREADY;
 918
 919         device->disconnected = disconnected;
 920
 921         if (disconnected == TRUE)
 922                 force_scan_trigger(device);
 923
 924         return 0;
 925 }
 926
 927 /**
 928  * connman_device_get_disconnected:
 929  * @device: device structure
 930  *
 931  * Get device disconnected state
 932  */
 933 connman_bool_t connman_device_get_disconnected(struct connman_device *device)
 934 {
 935         return device->disconnected;
 936 }
 937
 938 /**
 939  * connman_device_set_string:
 940  * @device: device structure
 941  * @key: unique identifier
 942  * @value: string value
 943  *
 944  * Set string value for specific key
 945  */
 946 int connman_device_set_string(struct connman_device *device,
 947                                         const char *key, const char *value)
 948 {
 949         DBG("device %p key %s value %s", device, key, value);
 950
 951         if (g_str_equal(key, "Address") == TRUE) {
 952                 g_free(device->address);
 953                 device->address = g_strdup(value);
 954         } else if (g_str_equal(key, "Name") == TRUE) {
 955                 g_free(device->name);
 956                 device->name = g_strdup(value);
 957         } else if (g_str_equal(key, "Node") == TRUE) {
 958                 g_free(device->node);
 959                 device->node = g_strdup(value);
 960         } else if (g_str_equal(key, "Path") == TRUE) {
 961                 g_free(device->path);
 962                 device->path = g_strdup(value);
 963         } else {
 964                 return -EINVAL;
 965         }
 966
 967         return 0;
 968 }
 969
 970 /**
 971  * connman_device_get_string:
 972  * @device: device structure
 973  * @key: unique identifier
 974  *
 975  * Get string value for specific key
 976  */
 977 const char *connman_device_get_string(struct connman_device *device,
 978                                                         const char *key)
 979 {
 980         DBG("device %p key %s", device, key);
 981
 982         if (g_str_equal(key, "Address") == TRUE)
 983                 return device->address;
 984         else if (g_str_equal(key, "Name") == TRUE)
 985                 return device->name;
 986         else if (g_str_equal(key, "Node") == TRUE)
 987                 return device->node;
 988         else if (g_str_equal(key, "Interface") == TRUE)
 989                 return device->interface;
 990         else if (g_str_equal(key, "Path") == TRUE)
 991                 return device->path;
 992
 993         return NULL;
 994 }
 995
 996 static void set_offlinemode(struct connman_device *device,
 997                                 connman_bool_t offlinemode)
 998 {
 999         connman_bool_t powered;
1000
1001         DBG("device %p name %s", device, device->name);
1002
1003         if (device == NULL)
1004                 return;
1005
1006         device->offlinemode = offlinemode;
1007
1008         if (device->blocked == TRUE)
1009                 return;
1010
1011         powered = (offlinemode == TRUE) ? FALSE : TRUE;
1012
1013         if (device->powered == powered)
1014                 return;
1015
1016         if (device->powered_persistent == FALSE)
1017                 powered = FALSE;
1018
1019         set_powered(device, powered);
1020 }
1021
1022 int __connman_device_set_offlinemode(connman_bool_t offlinemode)
1023 {
1024         GSList *list;
1025
1026         DBG("offlinmode %d", offlinemode);
1027
1028         for (list = device_list; list != NULL; list = list->next) {
1029                 struct connman_device *device = list->data;
1030
1031                 set_offlinemode(device, offlinemode);
1032         }
1033
1034         __connman_notifier_offlinemode(offlinemode);
1035
1036         return 0;
1037 }
1038
1039 void __connman_device_increase_connections(struct connman_device *device)
1040 {
1041         if (device == NULL)
1042                 return;
1043
1044         device->connections++;
1045 }
1046
1047 void __connman_device_decrease_connections(struct connman_device *device)
1048 {
1049         if (device == NULL)
1050                 return;
1051
1052         device->connections--;
1053
1054         if (device->connections == 0)
1055                 device->backoff_interval = SCAN_INITIAL_DELAY;
1056 }
1057
1058 /**
1059  * connman_device_add_network:
1060  * @device: device structure
1061  * @network: network structure
1062  *
1063  * Add new network to the device
1064  */
1065 int connman_device_add_network(struct connman_device *device,
1066                                         struct connman_network *network)
1067 {
1068         const char *identifier = connman_network_get_identifier(network);
1069
1070         DBG("device %p network %p", device, network);
1071
1072         if (identifier == NULL)
1073                 return -EINVAL;
1074
1075         __connman_network_set_device(network, device);
1076
1077         g_hash_table_insert(device->networks, g_strdup(identifier),
1078                                                                 network);
1079
1080         return 0;
1081 }
1082
1083 /**
1084  * connman_device_get_network:
1085  * @device: device structure
1086  * @identifier: network identifier
1087  *
1088  * Get network for given identifier
1089  */
1090 struct connman_network *connman_device_get_network(struct connman_device *device,
1091                                                         const char *identifier)
1092 {
1093         DBG("device %p identifier %s", device, identifier);
1094
1095         return g_hash_table_lookup(device->networks, identifier);
1096 }
1097
1098 /**
1099  * connman_device_remove_network:
1100  * @device: device structure
1101  * @identifier: network identifier
1102  *
1103  * Remove network for given identifier
1104  */
1105 int connman_device_remove_network(struct connman_device *device,
1106                                                         const char *identifier)
1107 {
1108         struct connman_network *network;
1109
1110         DBG("device %p identifier %s", device, identifier);
1111
1112         network = connman_device_get_network(device, identifier);
1113         if (network == NULL)
1114                 return 0;
1115
1116         __connman_network_set_device(network, NULL);
1117
1118         g_hash_table_remove(device->networks, identifier);
1119
1120         return 0;
1121 }
1122
1123 void connman_device_remove_all_networks(struct connman_device *device)
1124 {
1125         g_hash_table_remove_all(device->networks);
1126 }
1127
1128 void __connman_device_set_network(struct connman_device *device,
1129                                         struct connman_network *network)
1130 {
1131         const char *name;
1132
1133         if (device == NULL)
1134                 return;
1135
1136         if (device->network == network)
1137                 return;
1138
1139         if (device->network != NULL)
1140                 connman_network_unref(device->network);
1141
1142         if (network != NULL) {
1143                 name = connman_network_get_string(network,
1144                                                 CONNMAN_PROPERTY_ID_NAME);
1145                 g_free(device->last_network);
1146                 device->last_network = g_strdup(name);
1147
1148                 device->network = connman_network_ref(network);
1149         } else {
1150                 g_free(device->last_network);
1151                 device->last_network = NULL;
1152
1153                 device->network = NULL;
1154         }
1155 }
1156
1157 void __connman_device_set_reconnect(struct connman_device *device,
1158                                                 connman_bool_t reconnect)
1159 {
1160         device->reconnect = reconnect;
1161 }
1162
1163 connman_bool_t  __connman_device_get_reconnect(
1164                                 struct connman_device *device)
1165 {
1166         return device->reconnect;
1167 }
1168
1169 static gboolean match_driver(struct connman_device *device,
1170                                         struct connman_device_driver *driver)
1171 {
1172         if (device->type == driver->type ||
1173                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1174                 return TRUE;
1175
1176         return FALSE;
1177 }
1178
1179 static int device_probe(struct connman_device *device)
1180 {
1181         GSList *list;
1182
1183         DBG("device %p name %s", device, device->name);
1184
1185         if (device->driver != NULL)
1186                 return -EALREADY;
1187
1188         for (list = driver_list; list; list = list->next) {
1189                 struct connman_device_driver *driver = list->data;
1190
1191                 if (match_driver(device, driver) == FALSE)
1192                         continue;
1193
1194                 DBG("driver %p name %s", driver, driver->name);
1195
1196                 if (driver->probe(device) == 0) {
1197                         device->driver = driver;
1198                         break;
1199                 }
1200         }
1201
1202         if (device->driver == NULL)
1203                 return -ENODEV;
1204
1205         return setup_device(device);
1206 }
1207
1208 static void device_remove(struct connman_device *device)
1209 {
1210         DBG("device %p name %s", device, device->name);
1211
1212         if (device->driver == NULL)
1213                 return;
1214
1215         remove_device(device);
1216 }
1217
1218 /**
1219  * connman_device_register:
1220  * @device: device structure
1221  *
1222  * Register device with the system
1223  */
1224 int connman_device_register(struct connman_device *device)
1225 {
1226         __connman_storage_load_device(device);
1227
1228         device->offlinemode = __connman_profile_get_offlinemode();
1229
1230         return device_probe(device);
1231 }
1232
1233 /**
1234  * connman_device_unregister:
1235  * @device: device structure
1236  *
1237  * Unregister device with the system
1238  */
1239 void connman_device_unregister(struct connman_device *device)
1240 {
1241         __connman_storage_save_device(device);
1242
1243         device_remove(device);
1244 }
1245
1246 /**
1247  * connman_device_get_data:
1248  * @device: device structure
1249  *
1250  * Get private device data pointer
1251  */
1252 void *connman_device_get_data(struct connman_device *device)
1253 {
1254         return device->driver_data;
1255 }
1256
1257 /**
1258  * connman_device_set_data:
1259  * @device: device structure
1260  * @data: data pointer
1261  *
1262  * Set private device data pointer
1263  */
1264 void connman_device_set_data(struct connman_device *device, void *data)
1265 {
1266         device->driver_data = data;
1267 }
1268
1269 struct connman_device *__connman_device_find_device(
1270                                 enum connman_service_type type)
1271 {
1272         GSList *list;
1273
1274         for (list = device_list; list != NULL; list = list->next) {
1275                 struct connman_device *device = list->data;
1276                 enum connman_service_type service_type =
1277                         connman_device_get_type(device);
1278
1279                 if (service_type != type)
1280                         continue;
1281
1282                 return device;
1283         }
1284
1285         return NULL;
1286 }
1287
1288 int __connman_device_request_scan(enum connman_service_type type)
1289 {
1290         GSList *list;
1291         int err;
1292
1293         switch (type) {
1294         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1295         case CONNMAN_SERVICE_TYPE_SYSTEM:
1296         case CONNMAN_SERVICE_TYPE_ETHERNET:
1297         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1298         case CONNMAN_SERVICE_TYPE_CELLULAR:
1299         case CONNMAN_SERVICE_TYPE_GPS:
1300         case CONNMAN_SERVICE_TYPE_VPN:
1301         case CONNMAN_SERVICE_TYPE_GADGET:
1302                 return 0;
1303         case CONNMAN_SERVICE_TYPE_WIFI:
1304         case CONNMAN_SERVICE_TYPE_WIMAX:
1305                 break;
1306         }
1307
1308         for (list = device_list; list != NULL; list = list->next) {
1309                 struct connman_device *device = list->data;
1310                 enum connman_service_type service_type =
1311                         __connman_device_get_service_type(device);
1312
1313                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1314                                 service_type != type) {
1315                         continue;
1316                 }
1317
1318                 err = __connman_device_scan(device);
1319                 if (err < 0 && err != -EINPROGRESS) {
1320                         DBG("err %d", err);
1321                         /* XXX maybe only a continue? */
1322                         return err;
1323                 }
1324         }
1325
1326         return 0;
1327 }
1328
1329 static int set_technology(enum connman_service_type type, connman_bool_t enable)
1330 {
1331         GSList *list;
1332         int err;
1333
1334         DBG("type %d enable %d", type, enable);
1335
1336         switch (type) {
1337         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1338         case CONNMAN_SERVICE_TYPE_SYSTEM:
1339         case CONNMAN_SERVICE_TYPE_GPS:
1340         case CONNMAN_SERVICE_TYPE_VPN:
1341         case CONNMAN_SERVICE_TYPE_GADGET:
1342                 return 0;
1343         case CONNMAN_SERVICE_TYPE_ETHERNET:
1344         case CONNMAN_SERVICE_TYPE_WIFI:
1345         case CONNMAN_SERVICE_TYPE_WIMAX:
1346         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1347         case CONNMAN_SERVICE_TYPE_CELLULAR:
1348                 break;
1349         }
1350
1351         for (list = device_list; list != NULL; list = list->next) {
1352                 struct connman_device *device = list->data;
1353                 enum connman_service_type service_type =
1354                         __connman_device_get_service_type(device);
1355
1356                 if (service_type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
1357                                 service_type != type) {
1358                         continue;
1359                 }
1360
1361                 if (enable == TRUE)
1362                         err = __connman_device_enable_persistent(device);
1363                 else
1364                         err = __connman_device_disable_persistent(device);
1365
1366                 if (err < 0 && err != -EINPROGRESS) {
1367                         DBG("err %d", err);
1368                         /* XXX maybe only a continue? */
1369                         return err;
1370                 }
1371         }
1372
1373         return 0;
1374 }
1375
1376 int __connman_device_enable_technology(enum connman_service_type type)
1377 {
1378         return set_technology(type, TRUE);
1379 }
1380
1381 int __connman_device_disable_technology(enum connman_service_type type)
1382 {
1383         return set_technology(type, FALSE);
1384 }
1385
1386 connman_bool_t __connman_device_isfiltered(const char *devname)
1387 {
1388         char **pattern;
1389
1390         if (device_filter == NULL)
1391                 goto nodevice;
1392
1393         for (pattern = device_filter; *pattern; pattern++) {
1394                 if (g_pattern_match_simple(*pattern, devname) == FALSE) {
1395                         DBG("ignoring device %s (match)", devname);
1396                         return TRUE;
1397                 }
1398         }
1399
1400 nodevice:
1401         if (nodevice_filter == NULL)
1402                 return FALSE;
1403
1404         for (pattern = nodevice_filter; *pattern; pattern++) {
1405                 if (g_pattern_match_simple(*pattern, devname) == TRUE) {
1406                         DBG("ignoring device %s (no match)", devname);
1407                         return TRUE;
1408                 }
1409         }
1410
1411         return FALSE;
1412 }
1413
1414 static int device_load(struct connman_device *device)
1415 {
1416         const char *ident = __connman_profile_active_ident();
1417         GKeyFile *keyfile;
1418         GError *error = NULL;
1419         gchar *identifier;
1420         connman_bool_t powered;
1421
1422         DBG("device %p", device);
1423
1424         keyfile = __connman_storage_open_profile(ident);
1425         if (keyfile == NULL)
1426                 return 0;
1427
1428         identifier = g_strdup_printf("device_%s", device->name);
1429         if (identifier == NULL)
1430                 goto done;
1431
1432         powered = g_key_file_get_boolean(keyfile, identifier,
1433                                                 "Powered", &error);
1434         if (error == NULL)
1435                 device->powered_persistent = powered;
1436         g_clear_error(&error);
1437
1438 done:
1439         g_free(identifier);
1440
1441         __connman_storage_close_profile(ident, keyfile, FALSE);
1442
1443         return 0;
1444 }
1445
1446 static int device_save(struct connman_device *device)
1447 {
1448         const char *ident = __connman_profile_active_ident();
1449         GKeyFile *keyfile;
1450         gchar *identifier;
1451
1452         DBG("device %p", device);
1453
1454         keyfile = __connman_storage_open_profile(ident);
1455         if (keyfile == NULL)
1456                 return 0;
1457
1458         identifier = g_strdup_printf("device_%s", device->name);
1459         if (identifier == NULL)
1460                 goto done;
1461
1462         g_key_file_set_boolean(keyfile, identifier,
1463                                         "Powered", device->powered_persistent);
1464
1465 done:
1466         g_free(identifier);
1467
1468         __connman_storage_close_profile(ident, keyfile, TRUE);
1469
1470         return 0;
1471 }
1472
1473 static struct connman_storage device_storage = {
1474         .name           = "device",
1475         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1476         .device_load    = device_load,
1477         .device_save    = device_save,
1478 };
1479
1480 int __connman_device_init(const char *device, const char *nodevice)
1481 {
1482         DBG("");
1483
1484         if (device != NULL)
1485                 device_filter = g_strsplit(device, ",", -1);
1486
1487         if (nodevice != NULL)
1488                 nodevice_filter = g_strsplit(nodevice, ",", -1);
1489
1490         return connman_storage_register(&device_storage);
1491 }
1492
1493 void __connman_device_cleanup(void)
1494 {
1495         DBG("");
1496
1497         g_strfreev(nodevice_filter);
1498         g_strfreev(device_filter);
1499
1500         connman_storage_unregister(&device_storage);
1501 }