git.maemo.org Git - connman/blob - src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <gdbus.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         enum connman_device_mode mode;
  35         enum connman_device_policy policy;
  36         connman_bool_t powered;
  37         connman_bool_t carrier;
  38         connman_bool_t scanning;
  39         char *name;
  40         char *node;
  41         char *interface;
  42         unsigned int connections;
  43
  44         struct connman_device_driver *driver;
  45         void *driver_data;
  46
  47         connman_bool_t registered;
  48
  49         GHashTable *networks;
  50 };
  51
  52 static const char *type2description(enum connman_device_type type)
  53 {
  54         switch (type) {
  55         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  56         case CONNMAN_DEVICE_TYPE_VENDOR:
  57                 break;
  58         case CONNMAN_DEVICE_TYPE_ETHERNET:
  59                 return "Ethernet";
  60         case CONNMAN_DEVICE_TYPE_WIFI:
  61                 return "Wireless";
  62         case CONNMAN_DEVICE_TYPE_WIMAX:
  63                 return "WiMAX";
  64         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  65                 return "Bluetooth";
  66         case CONNMAN_DEVICE_TYPE_HSO:
  67         case CONNMAN_DEVICE_TYPE_NOZOMI:
  68         case CONNMAN_DEVICE_TYPE_HUAWEI:
  69         case CONNMAN_DEVICE_TYPE_NOVATEL:
  70                 return "Cellular";
  71         }
  72
  73         return NULL;
  74 }
  75
  76 static const char *type2string(enum connman_device_type type)
  77 {
  78         switch (type) {
  79         case CONNMAN_DEVICE_TYPE_UNKNOWN:
  80         case CONNMAN_DEVICE_TYPE_VENDOR:
  81                 break;
  82         case CONNMAN_DEVICE_TYPE_ETHERNET:
  83                 return "ethernet";
  84         case CONNMAN_DEVICE_TYPE_WIFI:
  85                 return "wifi";
  86         case CONNMAN_DEVICE_TYPE_WIMAX:
  87                 return "wimax";
  88         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  89                 return "bluetooth";
  90         case CONNMAN_DEVICE_TYPE_HSO:
  91         case CONNMAN_DEVICE_TYPE_HUAWEI:
  92         case CONNMAN_DEVICE_TYPE_NOZOMI:
  93         case CONNMAN_DEVICE_TYPE_NOVATEL:
  94                 return "cellular";
  95         }
  96
  97         return NULL;
  98 }
  99
 100 static const char *policy2string(enum connman_device_policy policy)
 101 {
 102         switch (policy) {
 103         case CONNMAN_DEVICE_POLICY_UNKNOWN:
 104                 break;
 105         case CONNMAN_DEVICE_POLICY_IGNORE:
 106                 return "ignore";
 107         case CONNMAN_DEVICE_POLICY_OFF:
 108                 return "off";
 109         case CONNMAN_DEVICE_POLICY_AUTO:
 110                 return "auto";
 111         case CONNMAN_DEVICE_POLICY_MANUAL:
 112                 return "manual";
 113         }
 114
 115         return NULL;
 116 }
 117
 118 static enum connman_device_policy string2policy(const char *policy)
 119 {
 120         if (g_str_equal(policy, "ignore") == TRUE)
 121                 return CONNMAN_DEVICE_POLICY_IGNORE;
 122         else if (g_str_equal(policy, "off") == TRUE)
 123                 return CONNMAN_DEVICE_POLICY_OFF;
 124         else if (g_str_equal(policy, "auto") == TRUE)
 125                 return CONNMAN_DEVICE_POLICY_AUTO;
 126         else if (g_str_equal(policy, "manual") == TRUE)
 127                 return CONNMAN_DEVICE_POLICY_MANUAL;
 128         else
 129                 return CONNMAN_DEVICE_POLICY_UNKNOWN;
 130 }
 131
 132 static int set_powered(struct connman_device *device, connman_bool_t powered)
 133 {
 134         struct connman_device_driver *driver = device->driver;
 135         int err;
 136
 137         DBG("device %p powered %d", device, powered);
 138
 139         if (!driver)
 140                 return -EINVAL;
 141
 142         if (powered == TRUE) {
 143                 if (driver->enable)
 144                         err = driver->enable(device);
 145                 else
 146                         err = -EINVAL;
 147         } else {
 148                 g_hash_table_remove_all(device->networks);
 149
 150                 if (driver->disable)
 151                         err = driver->disable(device);
 152                 else
 153                         err = -EINVAL;
 154         }
 155
 156         return err;
 157 }
 158
 159 static int set_policy(DBusConnection *connection,
 160                                 struct connman_device *device,
 161                                         enum connman_device_policy policy)
 162 {
 163         DBusMessage *signal;
 164         DBusMessageIter entry, value;
 165         const char *str, *key = "Policy";
 166         int err = 0;
 167
 168         DBG("device %p policy %d", device, policy);
 169
 170         if (device->policy == policy)
 171                 return 0;
 172
 173         switch (policy) {
 174         case CONNMAN_DEVICE_POLICY_UNKNOWN:
 175                 return -EINVAL;
 176         case CONNMAN_DEVICE_POLICY_IGNORE:
 177                 break;
 178         case CONNMAN_DEVICE_POLICY_OFF:
 179                 if (device->powered == TRUE)
 180                         err = set_powered(device, FALSE);
 181                 break;
 182         case CONNMAN_DEVICE_POLICY_AUTO:
 183         case CONNMAN_DEVICE_POLICY_MANUAL:
 184                 if (device->powered == FALSE)
 185                         err = set_powered(device, TRUE);
 186                 break;
 187         }
 188
 189         if (err < 0)
 190                 return err;
 191
 192         device->policy = policy;
 193
 194         signal = dbus_message_new_signal(device->element.path,
 195                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 196         if (signal == NULL)
 197                 return 0;
 198
 199         dbus_message_iter_init_append(signal, &entry);
 200
 201         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 202
 203         str = policy2string(policy);
 204
 205         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 206                                         DBUS_TYPE_STRING_AS_STRING, &value);
 207         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &str);
 208         dbus_message_iter_close_container(&entry, &value);
 209
 210         g_dbus_send_message(connection, signal);
 211
 212         return 0;
 213 }
 214
 215 static void append_networks(struct connman_device *device,
 216                                                 DBusMessageIter *entry)
 217 {
 218         DBusMessageIter value, iter;
 219         const char *key = "Networks";
 220
 221         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 222
 223         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 224                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 225                                                                 &value);
 226
 227         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 228                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 229         __connman_element_list((struct connman_element *) device,
 230                                         CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 231         dbus_message_iter_close_container(&value, &iter);
 232
 233         dbus_message_iter_close_container(entry, &value);
 234 }
 235
 236 static DBusMessage *get_properties(DBusConnection *conn,
 237                                         DBusMessage *msg, void *data)
 238 {
 239         struct connman_device *device = data;
 240         DBusMessage *reply;
 241         DBusMessageIter array, dict, entry;
 242         const char *str;
 243
 244         DBG("conn %p", conn);
 245
 246         reply = dbus_message_new_method_return(msg);
 247         if (reply == NULL)
 248                 return NULL;
 249
 250         dbus_message_iter_init_append(reply, &array);
 251
 252         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 253                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 254                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 255                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 256
 257         str = type2description(device->type);
 258         if (str != NULL && device->interface != NULL) {
 259                 char *name = g_strdup_printf("%s (%s)", str, device->interface);
 260                 if (name != NULL)
 261                         connman_dbus_dict_append_variant(&dict, "Name",
 262                                                 DBUS_TYPE_STRING, &name);
 263                 g_free(name);
 264         }
 265
 266         str = type2string(device->type);
 267         if (str != NULL)
 268                 connman_dbus_dict_append_variant(&dict, "Type",
 269                                                 DBUS_TYPE_STRING, &str);
 270
 271         if (device->interface != NULL)
 272                 connman_dbus_dict_append_variant(&dict, "Interface",
 273                                         DBUS_TYPE_STRING, &device->interface);
 274
 275         str = policy2string(device->policy);
 276         if (str != NULL)
 277                 connman_dbus_dict_append_variant(&dict, "Policy",
 278                                                 DBUS_TYPE_STRING, &str);
 279
 280         connman_dbus_dict_append_variant(&dict, "Powered",
 281                                         DBUS_TYPE_BOOLEAN, &device->powered);
 282
 283         if (device->driver && device->driver->scan)
 284                 connman_dbus_dict_append_variant(&dict, "Scanning",
 285                                         DBUS_TYPE_BOOLEAN, &device->scanning);
 286
 287         switch (device->mode) {
 288         case CONNMAN_DEVICE_MODE_UNKNOWN:
 289         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 290                 break;
 291         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 292         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 293                 dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
 294                                                                 NULL, &entry);
 295                 append_networks(device, &entry);
 296                 dbus_message_iter_close_container(&dict, &entry);
 297                 break;
 298         }
 299
 300         dbus_message_iter_close_container(&array, &dict);
 301
 302         return reply;
 303 }
 304
 305 static DBusMessage *set_property(DBusConnection *conn,
 306                                         DBusMessage *msg, void *data)
 307 {
 308         struct connman_device *device = data;
 309         DBusMessageIter iter, value;
 310         const char *name;
 311
 312         DBG("conn %p", conn);
 313
 314         if (dbus_message_iter_init(msg, &iter) == FALSE)
 315                 return __connman_error_invalid_arguments(msg);
 316
 317         dbus_message_iter_get_basic(&iter, &name);
 318         dbus_message_iter_next(&iter);
 319         dbus_message_iter_recurse(&iter, &value);
 320
 321         if (__connman_security_check_privileges(msg) < 0)
 322                 return __connman_error_permission_denied(msg);
 323
 324         if (g_str_equal(name, "Powered") == TRUE) {
 325                 connman_bool_t powered;
 326                 int err;
 327
 328                 dbus_message_iter_get_basic(&value, &powered);
 329
 330                 if (device->powered == powered)
 331                         return __connman_error_invalid_arguments(msg);
 332
 333                 err = set_powered(device, powered);
 334                 if (err < 0 && err != -EINPROGRESS)
 335                         return __connman_error_failed(msg);
 336         } else if (g_str_equal(name, "Policy") == TRUE) {
 337                 enum connman_device_policy policy;
 338                 const char *str;
 339                 int err;
 340
 341                 dbus_message_iter_get_basic(&value, &str);
 342                 policy = string2policy(str);
 343                 if (policy == CONNMAN_DEVICE_POLICY_UNKNOWN)
 344                         return __connman_error_invalid_arguments(msg);
 345
 346                 err = set_policy(conn, device, policy);
 347                 if (err < 0)
 348                         return __connman_error_failed(msg);
 349         }
 350
 351         __connman_storage_save_device(device);
 352
 353         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 354 }
 355
 356 static DBusMessage *create_network(DBusConnection *conn,
 357                                         DBusMessage *msg, void *data)
 358 {
 359         DBG("conn %p", conn);
 360
 361         if (__connman_security_check_privileges(msg) < 0)
 362                 return __connman_error_permission_denied(msg);
 363
 364         return __connman_error_invalid_arguments(msg);
 365 }
 366
 367 static DBusMessage *remove_network(DBusConnection *conn,
 368                                         DBusMessage *msg, void *data)
 369 {
 370         DBG("conn %p", conn);
 371
 372         if (__connman_security_check_privileges(msg) < 0)
 373                 return __connman_error_permission_denied(msg);
 374
 375         return __connman_error_invalid_arguments(msg);
 376 }
 377
 378 static DBusMessage *propose_scan(DBusConnection *conn,
 379                                         DBusMessage *msg, void *data)
 380 {
 381         struct connman_device *device = data;
 382         int err;
 383
 384         DBG("conn %p", conn);
 385
 386         switch (device->mode) {
 387         case CONNMAN_DEVICE_MODE_UNKNOWN:
 388         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 389                 return __connman_error_not_supported(msg);
 390         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 391         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 392                 break;
 393         }
 394
 395         if (!device->driver || !device->driver->scan)
 396                 return __connman_error_not_supported(msg);
 397
 398         if (device->powered == FALSE)
 399                 return __connman_error_failed(msg);
 400
 401         err = device->driver->scan(device);
 402         if (err < 0)
 403                 return __connman_error_failed(msg);
 404
 405         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 406 }
 407
 408 static GDBusMethodTable device_methods[] = {
 409         { "GetProperties", "",      "a{sv}", get_properties },
 410         { "SetProperty",   "sv",    "",      set_property   },
 411         { "CreateNetwork", "a{sv}", "o",     create_network },
 412         { "RemoveNetwork", "o",     "",      remove_network },
 413         { "ProposeScan",   "",      "",      propose_scan   },
 414         { },
 415 };
 416
 417 static GDBusSignalTable device_signals[] = {
 418         { "PropertyChanged", "sv" },
 419         { },
 420 };
 421
 422 static DBusConnection *connection;
 423
 424 static void append_devices(DBusMessageIter *entry)
 425 {
 426         DBusMessageIter value, iter;
 427         const char *key = "Devices";
 428
 429         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 430
 431         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 432                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 433                                                                 &value);
 434
 435         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 436                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 437         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
 438         dbus_message_iter_close_container(&value, &iter);
 439
 440         dbus_message_iter_close_container(entry, &value);
 441 }
 442
 443 static void emit_devices_signal(void)
 444 {
 445         DBusMessage *signal;
 446         DBusMessageIter entry;
 447
 448         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 449                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
 450         if (signal == NULL)
 451                 return;
 452
 453         dbus_message_iter_init_append(signal, &entry);
 454
 455         append_devices(&entry);
 456
 457         g_dbus_send_message(connection, signal);
 458 }
 459
 460 static int register_interface(struct connman_element *element)
 461 {
 462         struct connman_device *device = element->device;
 463
 464         DBG("element %p name %s", element, element->name);
 465
 466         if (g_dbus_register_interface(connection, element->path,
 467                                         CONNMAN_DEVICE_INTERFACE,
 468                                         device_methods, device_signals,
 469                                         NULL, device, NULL) == FALSE) {
 470                 connman_error("Failed to register %s device", element->path);
 471                 return -EIO;
 472         }
 473
 474         device->registered = TRUE;
 475
 476         emit_devices_signal();
 477
 478         return 0;
 479 }
 480
 481 static void unregister_interface(struct connman_element *element)
 482 {
 483         struct connman_device *device = element->device;
 484
 485         DBG("element %p name %s", element, element->name);
 486
 487         device->registered = FALSE;
 488
 489         emit_devices_signal();
 490
 491         g_dbus_unregister_interface(connection, element->path,
 492                                                 CONNMAN_DEVICE_INTERFACE);
 493 }
 494
 495 static void device_enable(struct connman_device *device)
 496 {
 497         DBG("device %p", device);
 498
 499         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE ||
 500                                 device->policy == CONNMAN_DEVICE_POLICY_OFF)
 501                 return;
 502
 503         if (device->powered == TRUE)
 504                 return;
 505
 506         if (device->driver->enable)
 507                 device->driver->enable(device);
 508 }
 509
 510 static void device_disable(struct connman_device *device)
 511 {
 512         DBG("device %p", device);
 513
 514         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE)
 515                 return;
 516
 517         if (device->powered == FALSE)
 518                 return;
 519
 520         g_hash_table_remove_all(device->networks);
 521
 522         if (device->driver->disable)
 523                 device->driver->disable(device);
 524 }
 525
 526 static int setup_device(struct connman_device *device)
 527 {
 528         int err;
 529
 530         DBG("device %p", device);
 531
 532         err = register_interface(&device->element);
 533         if (err < 0) {
 534                 if (device->driver->remove)
 535                         device->driver->remove(device);
 536                 device->driver = NULL;
 537                 return err;
 538         }
 539
 540         device_enable(device);
 541
 542         return 0;
 543 }
 544
 545 static void probe_driver(struct connman_element *element, gpointer user_data)
 546 {
 547         struct connman_device_driver *driver = user_data;
 548
 549         DBG("element %p name %s", element, element->name);
 550
 551         if (element->device == NULL)
 552                 return;
 553
 554         if (element->device->driver != NULL)
 555                 return;
 556
 557         if (driver->probe(element->device) < 0)
 558                 return;
 559
 560         element->device->driver = driver;
 561
 562         setup_device(element->device);
 563 }
 564
 565 static void remove_device(struct connman_device *device)
 566 {
 567         DBG("device %p", device);
 568
 569         device_disable(device);
 570
 571         unregister_interface(&device->element);
 572
 573         if (device->driver->remove)
 574                 device->driver->remove(device);
 575
 576         device->driver = NULL;
 577 }
 578
 579 static void remove_driver(struct connman_element *element, gpointer user_data)
 580 {
 581         struct connman_device_driver *driver = user_data;
 582
 583         DBG("element %p name %s", element, element->name);
 584
 585         if (element->device == NULL)
 586                 return;
 587
 588         if (element->device->driver == driver)
 589                 remove_device(element->device);
 590 }
 591
 592 connman_bool_t __connman_device_has_driver(struct connman_device *device)
 593 {
 594         if (device == NULL || device->driver == NULL)
 595                 return FALSE;
 596
 597         return device->registered;
 598 }
 599
 600 static GSList *driver_list = NULL;
 601
 602 static gint compare_priority(gconstpointer a, gconstpointer b)
 603 {
 604         const struct connman_device_driver *driver1 = a;
 605         const struct connman_device_driver *driver2 = b;
 606
 607         return driver2->priority - driver1->priority;
 608 }
 609
 610 /**
 611  * connman_device_driver_register:
 612  * @driver: device driver definition
 613  *
 614  * Register a new device driver
 615  *
 616  * Returns: %0 on success
 617  */
 618 int connman_device_driver_register(struct connman_device_driver *driver)
 619 {
 620         DBG("driver %p name %s", driver, driver->name);
 621
 622         driver_list = g_slist_insert_sorted(driver_list, driver,
 623                                                         compare_priority);
 624
 625         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 626                                                 probe_driver, driver);
 627
 628         return 0;
 629 }
 630
 631 /**
 632  * connman_device_driver_unregister:
 633  * @driver: device driver definition
 634  *
 635  * Remove a previously registered device driver
 636  */
 637 void connman_device_driver_unregister(struct connman_device_driver *driver)
 638 {
 639         DBG("driver %p name %s", driver, driver->name);
 640
 641         driver_list = g_slist_remove(driver_list, driver);
 642
 643         __connman_element_foreach(NULL, CONNMAN_ELEMENT_TYPE_DEVICE,
 644                                                 remove_driver, driver);
 645 }
 646
 647 static void unregister_network(gpointer data)
 648 {
 649         struct connman_network *network = data;
 650
 651         DBG("network %p", network);
 652
 653         connman_element_unregister((struct connman_element *) network);
 654
 655         connman_network_unref(network);
 656 }
 657
 658 static void device_destruct(struct connman_element *element)
 659 {
 660         struct connman_device *device = element->device;
 661
 662         DBG("element %p name %s", element, element->name);
 663
 664         g_free(device->node);
 665         g_free(device->name);
 666         g_free(device->interface);
 667
 668         g_hash_table_destroy(device->networks);
 669         device->networks = NULL;
 670 }
 671
 672 /**
 673  * connman_device_create:
 674  * @node: device node name (for example an address)
 675  * @type: device type
 676  *
 677  * Allocate a new device of given #type and assign the #node name to it.
 678  *
 679  * Returns: a newly-allocated #connman_device structure
 680  */
 681 struct connman_device *connman_device_create(const char *node,
 682                                                 enum connman_device_type type)
 683 {
 684         struct connman_device *device;
 685
 686         DBG("node %s type %d", node, type);
 687
 688         device = g_try_new0(struct connman_device, 1);
 689         if (device == NULL)
 690                 return NULL;
 691
 692         DBG("device %p", device);
 693
 694         device->element.refcount = 1;
 695
 696         device->element.name = g_strdup(node);
 697         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 698         device->element.index = -1;
 699
 700         device->element.device = device;
 701         device->element.destruct = device_destruct;
 702
 703         device->type   = type;
 704         device->mode   = CONNMAN_DEVICE_MODE_UNKNOWN;
 705         device->policy = CONNMAN_DEVICE_POLICY_AUTO;
 706
 707         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 708                                                 g_free, unregister_network);
 709
 710         return device;
 711 }
 712
 713 /**
 714  * connman_device_ref:
 715  * @device: device structure
 716  *
 717  * Increase reference counter of device
 718  */
 719 struct connman_device *connman_device_ref(struct connman_device *device)
 720 {
 721         if (connman_element_ref(&device->element) == NULL)
 722                 return NULL;
 723
 724         return device;
 725 }
 726
 727 /**
 728  * connman_device_unref:
 729  * @device: device structure
 730  *
 731  * Decrease reference counter of device
 732  */
 733 void connman_device_unref(struct connman_device *device)
 734 {
 735         connman_element_unref(&device->element);
 736 }
 737
 738 /**
 739  * connman_device_get_name:
 740  * @device: device structure
 741  *
 742  * Get unique name of device
 743  */
 744 const char *connman_device_get_name(struct connman_device *device)
 745 {
 746         return device->element.name;
 747 }
 748
 749 /**
 750  * connman_device_get_path:
 751  * @device: device structure
 752  *
 753  * Get path name of device
 754  */
 755 const char *connman_device_get_path(struct connman_device *device)
 756 {
 757         return device->element.path;
 758 }
 759
 760 /**
 761  * connman_device_set_index:
 762  * @device: device structure
 763  * @index: index number
 764  *
 765  * Set index number of device
 766  */
 767 void connman_device_set_index(struct connman_device *device, int index)
 768 {
 769         device->element.index = index;
 770 }
 771
 772 /**
 773  * connman_device_get_index:
 774  * @device: device structure
 775  *
 776  * Get index number of device
 777  */
 778 int connman_device_get_index(struct connman_device *device)
 779 {
 780         return device->element.index;
 781 }
 782
 783 /**
 784  * connman_device_set_interface:
 785  * @device: device structure
 786  * @interface: interface name
 787  *
 788  * Set interface name of device
 789  */
 790 void connman_device_set_interface(struct connman_device *device,
 791                                                         const char *interface)
 792 {
 793         g_free(device->element.devname);
 794         device->element.devname = g_strdup(interface);
 795
 796         g_free(device->interface);
 797         device->interface = g_strdup(interface);
 798 }
 799
 800 /**
 801  * connman_device_get_interface:
 802  * @device: device structure
 803  *
 804  * Get interface name of device
 805  */
 806 const char *connman_device_get_interface(struct connman_device *device)
 807 {
 808         return device->interface;
 809 }
 810
 811 /**
 812  * connman_device_set_policy:
 813  * @device: device structure
 814  * @policy: power and connection policy
 815  *
 816  * Change power and connection policy of device
 817  */
 818 void connman_device_set_policy(struct connman_device *device,
 819                                         enum connman_device_policy policy)
 820 {
 821         device->policy = policy;
 822 }
 823
 824 /**
 825  * connman_device_set_mode:
 826  * @device: device structure
 827  * @mode: network mode
 828  *
 829  * Change network mode of device
 830  */
 831 void connman_device_set_mode(struct connman_device *device,
 832                                                 enum connman_device_mode mode)
 833 {
 834         device->mode = mode;
 835 }
 836
 837 /**
 838  * connman_device_set_powered:
 839  * @device: device structure
 840  * @powered: powered state
 841  *
 842  * Change power state of device
 843  */
 844 int connman_device_set_powered(struct connman_device *device,
 845                                                 connman_bool_t powered)
 846 {
 847         DBusMessage *signal;
 848         DBusMessageIter entry, value;
 849         const char *key = "Powered";
 850
 851         DBG("driver %p powered %d", device, powered);
 852
 853         if (device->powered == powered)
 854                 return -EALREADY;
 855
 856         device->powered = powered;
 857
 858         signal = dbus_message_new_signal(device->element.path,
 859                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 860         if (signal == NULL)
 861                 return 0;
 862
 863         dbus_message_iter_init_append(signal, &entry);
 864
 865         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 866
 867         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 868                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 869         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &powered);
 870         dbus_message_iter_close_container(&entry, &value);
 871
 872         g_dbus_send_message(connection, signal);
 873
 874         if (powered == FALSE)
 875                 return 0;
 876
 877         if (device->policy != CONNMAN_DEVICE_POLICY_AUTO)
 878                 return 0;
 879
 880         if (device->driver->scan)
 881                 device->driver->scan(device);
 882
 883         return 0;
 884 }
 885
 886 /**
 887  * connman_device_set_carrier:
 888  * @device: device structure
 889  * @carrier: carrier state
 890  *
 891  * Change carrier state of device (only for device without scanning)
 892  */
 893 int connman_device_set_carrier(struct connman_device *device,
 894                                                 connman_bool_t carrier)
 895 {
 896         DBG("driver %p carrier %d", device, carrier);
 897
 898         switch (device->mode) {
 899         case CONNMAN_DEVICE_MODE_UNKNOWN:
 900         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
 901         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
 902                 return -EINVAL;
 903         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
 904                 break;
 905         }
 906
 907         if (device->carrier == carrier)
 908                 return -EALREADY;
 909
 910         device->carrier = carrier;
 911
 912         if (carrier == TRUE) {
 913                 struct connman_element *element;
 914
 915                 element = connman_element_create(NULL);
 916                 if (element != NULL) {
 917                         element->type  = CONNMAN_ELEMENT_TYPE_DHCP;
 918                         element->index = device->element.index;
 919
 920                         if (connman_element_register(element,
 921                                                         &device->element) < 0)
 922                                 connman_element_unref(element);
 923                 }
 924         } else
 925                 connman_element_unregister_children(&device->element);
 926
 927         return 0;
 928 }
 929
 930 static void connect_known_network(struct connman_device *device)
 931 {
 932         GHashTableIter iter;
 933         gpointer key, value;
 934         unsigned int count = 0;
 935
 936         DBG("device %p", device);
 937
 938         g_hash_table_iter_init(&iter, device->networks);
 939
 940         while (g_hash_table_iter_next(&iter, &key, &value) == TRUE) {
 941                 struct connman_network *network = value;
 942                 int err;
 943
 944                 count++;
 945
 946                 if (connman_network_get_remember(network) == FALSE)
 947                         continue;
 948
 949                 err = connman_network_connect(network);
 950                 if (err == 0 || err == -EINPROGRESS)
 951                         return;
 952         }
 953
 954         if (count > 0)
 955                 return;
 956
 957         if (device->driver && device->driver->scan)
 958                 device->driver->scan(device);
 959 }
 960
 961 /**
 962  * connman_device_set_scanning:
 963  * @device: device structure
 964  * @scanning: scanning state
 965  *
 966  * Change scanning state of device
 967  */
 968 int connman_device_set_scanning(struct connman_device *device,
 969                                                 connman_bool_t scanning)
 970 {
 971         DBusMessage *signal;
 972         DBusMessageIter entry, value;
 973         const char *key = "Scanning";
 974
 975         DBG("driver %p scanning %d", device, scanning);
 976
 977         if (!device->driver || !device->driver->scan)
 978                 return -EINVAL;
 979
 980         if (device->scanning == scanning)
 981                 return -EALREADY;
 982
 983         device->scanning = scanning;
 984
 985         signal = dbus_message_new_signal(device->element.path,
 986                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 987         if (signal == NULL)
 988                 return 0;
 989
 990         dbus_message_iter_init_append(signal, &entry);
 991
 992         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 993
 994         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 995                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 996         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &scanning);
 997         dbus_message_iter_close_container(&entry, &value);
 998
 999         g_dbus_send_message(connection, signal);
1000
1001         if (scanning == TRUE)
1002                 return 0;
1003
1004         if (device->connections > 0)
1005                 return 0;
1006
1007         if (device->policy != CONNMAN_DEVICE_POLICY_AUTO)
1008                 return 0;
1009
1010         connect_known_network(device);
1011
1012         return 0;
1013 }
1014
1015 /**
1016  * connman_device_set_string:
1017  * @device: device structure
1018  * @key: unique identifier
1019  * @value: string value
1020  *
1021  * Set string value for specific key
1022  */
1023 int connman_device_set_string(struct connman_device *device,
1024                                         const char *key, const char *value)
1025 {
1026         DBG("device %p key %s value %s", device, key, value);
1027
1028         if (g_str_equal(key, "Name") == TRUE) {
1029                 g_free(device->name);
1030                 device->name = g_strdup(value);
1031         } else if (g_str_equal(key, "Node") == TRUE) {
1032                 g_free(device->node);
1033                 device->node = g_strdup(value);
1034         }
1035
1036         return 0;
1037 }
1038
1039 /**
1040  * connman_device_get_string:
1041  * @device: device structure
1042  * @key: unique identifier
1043  *
1044  * Get string value for specific key
1045  */
1046 const char *connman_device_get_string(struct connman_device *device,
1047                                                         const char *key)
1048 {
1049         DBG("device %p key %s", device, key);
1050
1051         if (g_str_equal(key, "Name") == TRUE)
1052                 return device->name;
1053         else if (g_str_equal(key, "Node") == TRUE)
1054                 return device->node;
1055
1056         return NULL;
1057 }
1058
1059 void __connman_device_increase_connections(struct connman_device *device)
1060 {
1061         device->connections++;
1062 }
1063
1064 void __connman_device_decrease_connections(struct connman_device *device)
1065 {
1066         device->connections--;
1067 }
1068
1069 /**
1070  * connman_device_add_network:
1071  * @device: device structure
1072  * @network: network structure
1073  *
1074  * Add new network to the device
1075  */
1076 int connman_device_add_network(struct connman_device *device,
1077                                         struct connman_network *network)
1078 {
1079         const char *identifier = connman_network_get_identifier(network);
1080         int err;
1081
1082         DBG("device %p network %p", device, network);
1083
1084         switch (device->mode) {
1085         case CONNMAN_DEVICE_MODE_UNKNOWN:
1086         case CONNMAN_DEVICE_MODE_TRANSPORT_IP:
1087                 return -EINVAL;
1088         case CONNMAN_DEVICE_MODE_NETWORK_SINGLE:
1089         case CONNMAN_DEVICE_MODE_NETWORK_MULTIPLE:
1090                 break;
1091         }
1092
1093         __connman_network_set_device(network, device);
1094
1095         __connman_storage_load_network(network);
1096
1097         err = connman_element_register((struct connman_element *) network,
1098                                                         &device->element);
1099         if (err < 0) {
1100                 __connman_network_set_device(network, NULL);
1101                 return err;
1102         }
1103
1104         g_hash_table_insert(device->networks, g_strdup(identifier),
1105                                                                 network);
1106
1107         return 0;
1108 }
1109
1110 /**
1111  * connman_device_get_network:
1112  * @device: device structure
1113  * @identifier: network identifier
1114  *
1115  * Get network for given identifier
1116  */
1117 struct connman_network *connman_device_get_network(struct connman_device *device,
1118                                                         const char *identifier)
1119 {
1120         DBG("device %p identifier %s", device, identifier);
1121
1122         return g_hash_table_lookup(device->networks, identifier);
1123 }
1124
1125 /**
1126  * connman_device_remove_network:
1127  * @device: device structure
1128  * @identifier: network identifier
1129  *
1130  * Remove network for given identifier
1131  */
1132 int connman_device_remove_network(struct connman_device *device,
1133                                                         const char *identifier)
1134 {
1135         DBG("device %p identifier %s", device, identifier);
1136
1137         g_hash_table_remove(device->networks, identifier);
1138
1139         return 0;
1140 }
1141
1142 /**
1143  * connman_device_register:
1144  * @device: device structure
1145  *
1146  * Register device with the system
1147  */
1148 int connman_device_register(struct connman_device *device)
1149 {
1150         __connman_storage_load_device(device);
1151
1152         return connman_element_register(&device->element, NULL);
1153 }
1154
1155 /**
1156  * connman_device_unregister:
1157  * @device: device structure
1158  *
1159  * Unregister device with the system
1160  */
1161 void connman_device_unregister(struct connman_device *device)
1162 {
1163         __connman_storage_save_device(device);
1164
1165         connman_element_unregister(&device->element);
1166 }
1167
1168 /**
1169  * connman_device_get_data:
1170  * @device: device structure
1171  *
1172  * Get private device data pointer
1173  */
1174 void *connman_device_get_data(struct connman_device *device)
1175 {
1176         return device->driver_data;
1177 }
1178
1179 /**
1180  * connman_device_set_data:
1181  * @device: device structure
1182  * @data: data pointer
1183  *
1184  * Set private device data pointer
1185  */
1186 void connman_device_set_data(struct connman_device *device, void *data)
1187 {
1188         device->driver_data = data;
1189 }
1190
1191 static gboolean match_driver(struct connman_device *device,
1192                                         struct connman_device_driver *driver)
1193 {
1194         if (device->type == driver->type ||
1195                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
1196                 return TRUE;
1197
1198         return FALSE;
1199 }
1200
1201 static int device_probe(struct connman_element *element)
1202 {
1203         struct connman_device *device = element->device;
1204         GSList *list;
1205
1206         DBG("element %p name %s", element, element->name);
1207
1208         if (device == NULL)
1209                 return -ENODEV;
1210
1211         if (device->driver != NULL)
1212                 return -EALREADY;
1213
1214         for (list = driver_list; list; list = list->next) {
1215                 struct connman_device_driver *driver = list->data;
1216
1217                 if (match_driver(device, driver) == FALSE)
1218                         continue;
1219
1220                 DBG("driver %p name %s", driver, driver->name);
1221
1222                 if (driver->probe(device) == 0) {
1223                         device->driver = driver;
1224                         break;
1225                 }
1226         }
1227
1228         if (device->driver == NULL)
1229                 return -ENODEV;
1230
1231         return setup_device(device);
1232 }
1233
1234 static void device_remove(struct connman_element *element)
1235 {
1236         struct connman_device *device = element->device;
1237
1238         DBG("element %p name %s", element, element->name);
1239
1240         if (device == NULL)
1241                 return;
1242
1243         if (device->driver == NULL)
1244                 return;
1245
1246         remove_device(device);
1247 }
1248
1249 static struct connman_driver device_driver = {
1250         .name           = "device",
1251         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1252         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1253         .probe          = device_probe,
1254         .remove         = device_remove,
1255 };
1256
1257 static int device_load(struct connman_device *device)
1258 {
1259         GKeyFile *keyfile;
1260         gchar *pathname, *data = NULL;
1261         gsize length;
1262         char *str;
1263
1264         DBG("device %p", device);
1265
1266         pathname = g_strdup_printf("%s/%s.conf", STORAGEDIR,
1267                                                         device->element.name);
1268         if (pathname == NULL)
1269                 return -ENOMEM;
1270
1271         keyfile = g_key_file_new();
1272
1273         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE) {
1274                 g_free(pathname);
1275                 return -ENOENT;
1276         }
1277
1278         g_free(pathname);
1279
1280         if (g_key_file_load_from_data(keyfile, data, length,
1281                                                         0, NULL) == FALSE) {
1282                 g_free(data);
1283                 return -EILSEQ;
1284         }
1285
1286         g_free(data);
1287
1288         str = g_key_file_get_string(keyfile, "Configuration", "Policy", NULL);
1289         if (str != NULL) {
1290                 device->policy = string2policy(str);
1291                 g_free(str);
1292         }
1293
1294         g_key_file_free(keyfile);
1295
1296         return 0;
1297 }
1298
1299 static int device_save(struct connman_device *device)
1300 {
1301         GKeyFile *keyfile;
1302         gchar *pathname, *data = NULL;
1303         gsize length;
1304         const char *str;
1305
1306         DBG("device %p", device);
1307
1308         pathname = g_strdup_printf("%s/%s.conf", STORAGEDIR,
1309                                                         device->element.name);
1310         if (pathname == NULL)
1311                 return -ENOMEM;
1312
1313         keyfile = g_key_file_new();
1314
1315         if (g_file_get_contents(pathname, &data, &length, NULL) == FALSE)
1316                 goto update;
1317
1318         if (length > 0) {
1319                 if (g_key_file_load_from_data(keyfile, data, length,
1320                                                         0, NULL) == FALSE)
1321                         goto done;
1322         }
1323
1324         g_free(data);
1325
1326 update:
1327         str = policy2string(device->policy);
1328         if (str != NULL)
1329                 g_key_file_set_string(keyfile, "Configuration", "Policy", str);
1330
1331         data = g_key_file_to_data(keyfile, &length, NULL);
1332
1333         g_file_set_contents(pathname, data, length, NULL);
1334
1335 done:
1336         g_free(data);
1337
1338         g_key_file_free(keyfile);
1339
1340         g_free(pathname);
1341
1342         return 0;
1343 }
1344
1345 static struct connman_storage device_storage = {
1346         .name           = "device",
1347         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1348         .device_load    = device_load,
1349         .device_save    = device_save,
1350 };
1351
1352 int __connman_device_init(void)
1353 {
1354         DBG("");
1355
1356         connection = connman_dbus_get_connection();
1357
1358         if (connman_storage_register(&device_storage) < 0)
1359                 connman_error("Failed to register device storage");
1360
1361         return connman_driver_register(&device_driver);
1362 }
1363
1364 void __connman_device_cleanup(void)
1365 {
1366         DBG("");
1367
1368         connman_driver_unregister(&device_driver);
1369
1370         connman_storage_unregister(&device_storage);
1371
1372         dbus_connection_unref(connection);
1373 }