src/device.c

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