src/technology.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 <gdbus.h>
  30
  31 #include "connman.h"
  32
  33 static DBusConnection *connection;
  34
  35 static GHashTable *rfkill_table;
  36 static GHashTable *device_table;
  37 static GSList *technology_list = NULL;
  38
  39 struct connman_rfkill {
  40         unsigned int index;
  41         enum connman_service_type type;
  42         connman_bool_t softblock;
  43         connman_bool_t hardblock;
  44 };
  45
  46 enum connman_technology_state {
  47         CONNMAN_TECHNOLOGY_STATE_UNKNOWN   = 0,
  48         CONNMAN_TECHNOLOGY_STATE_OFFLINE   = 1,
  49         CONNMAN_TECHNOLOGY_STATE_AVAILABLE = 2,
  50         CONNMAN_TECHNOLOGY_STATE_ENABLED   = 3,
  51         CONNMAN_TECHNOLOGY_STATE_CONNECTED = 4,
  52 };
  53
  54 struct connman_technology {
  55         gint refcount;
  56         enum connman_service_type type;
  57         enum connman_technology_state state;
  58         char *path;
  59         GHashTable *rfkill_list;
  60         GSList *device_list;
  61         gint enabled;
  62         gint blocked;
  63         char *regdom;
  64
  65         connman_bool_t tethering;
  66         char *tethering_ident;
  67         char *tethering_passphrase;
  68
  69         struct connman_technology_driver *driver;
  70         void *driver_data;
  71
  72         DBusMessage *pending_reply;
  73         guint pending_timeout;
  74 };
  75
  76 static GSList *driver_list = NULL;
  77
  78 static gint compare_priority(gconstpointer a, gconstpointer b)
  79 {
  80         const struct connman_technology_driver *driver1 = a;
  81         const struct connman_technology_driver *driver2 = b;
  82
  83         return driver2->priority - driver1->priority;
  84 }
  85
  86 /**
  87  * connman_technology_driver_register:
  88  * @driver: Technology driver definition
  89  *
  90  * Register a new technology driver
  91  *
  92  * Returns: %0 on success
  93  */
  94 int connman_technology_driver_register(struct connman_technology_driver *driver)
  95 {
  96         GSList *list;
  97         struct connman_technology *technology;
  98
  99         DBG("driver %p name %s", driver, driver->name);
 100
 101         driver_list = g_slist_insert_sorted(driver_list, driver,
 102                                                         compare_priority);
 103
 104         for (list = technology_list; list; list = list->next) {
 105                 technology = list->data;
 106
 107                 if (technology->driver != NULL)
 108                         continue;
 109
 110                 if (technology->type == driver->type)
 111                         technology->driver = driver;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /**
 118  * connman_technology_driver_unregister:
 119  * @driver: Technology driver definition
 120  *
 121  * Remove a previously registered technology driver
 122  */
 123 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 124 {
 125         GSList *list;
 126         struct connman_technology *technology;
 127
 128         DBG("driver %p name %s", driver, driver->name);
 129
 130         for (list = technology_list; list; list = list->next) {
 131                 technology = list->data;
 132
 133                 if (technology->driver == NULL)
 134                         continue;
 135
 136                 if (technology->type == driver->type) {
 137                         technology->driver->remove(technology);
 138                         technology->driver = NULL;
 139                 }
 140         }
 141
 142         driver_list = g_slist_remove(driver_list, driver);
 143 }
 144
 145 static void tethering_changed(struct connman_technology *technology)
 146 {
 147         connman_bool_t tethering = technology->tethering;
 148
 149         connman_dbus_property_changed_basic(technology->path,
 150                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 151                                                 DBUS_TYPE_BOOLEAN, &tethering);
 152 }
 153
 154 void connman_technology_tethering_notify(struct connman_technology *technology,
 155                                                         connman_bool_t enabled)
 156 {
 157         DBG("technology %p enabled %u", technology, enabled);
 158
 159         if (technology->tethering == enabled)
 160                 return;
 161
 162         technology->tethering = enabled;
 163
 164         tethering_changed(technology);
 165
 166         if (enabled == TRUE)
 167                 __connman_tethering_set_enabled();
 168         else
 169                 __connman_tethering_set_disabled();
 170 }
 171
 172 static int set_tethering(struct connman_technology *technology,
 173                                 const char *bridge, connman_bool_t enabled)
 174 {
 175         const char *ident, *passphrase;
 176
 177         ident = technology->tethering_ident;
 178         passphrase = technology->tethering_passphrase;
 179
 180         if (technology->driver == NULL ||
 181                         technology->driver->set_tethering == NULL)
 182                 return -EOPNOTSUPP;
 183
 184         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 185             (ident == NULL || passphrase == NULL))
 186                 return -EINVAL;
 187
 188         return technology->driver->set_tethering(technology, ident, passphrase,
 189                                                         bridge, enabled);
 190 }
 191
 192 void connman_technology_regdom_notify(struct connman_technology *technology,
 193                                                         const char *alpha2)
 194 {
 195         DBG("");
 196
 197         if (alpha2 == NULL)
 198                 connman_error("Failed to set regulatory domain");
 199         else
 200                 DBG("Regulatory domain set to %s", alpha2);
 201
 202         g_free(technology->regdom);
 203         technology->regdom = g_strdup(alpha2);
 204 }
 205
 206 int connman_technology_set_regdom(const char *alpha2)
 207 {
 208         GSList *list;
 209
 210         for (list = technology_list; list; list = list->next) {
 211                 struct connman_technology *technology = list->data;
 212
 213                 if (technology->driver == NULL)
 214                         continue;
 215
 216                 if (technology->driver->set_regdom)
 217                         technology->driver->set_regdom(technology, alpha2);
 218         }
 219
 220         return 0;
 221 }
 222
 223 static void free_rfkill(gpointer data)
 224 {
 225         struct connman_rfkill *rfkill = data;
 226
 227         g_free(rfkill);
 228 }
 229
 230 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 231 {
 232         GSList *list;
 233
 234         for (list = technology_list; list; list = list->next) {
 235                 struct connman_technology *technology = list->data;
 236
 237                 if (technology->path == NULL)
 238                         continue;
 239
 240                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 241                                                         &technology->path);
 242         }
 243 }
 244
 245 static void technologies_changed(void)
 246 {
 247         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 248                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 249                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 250 }
 251
 252 static const char *state2string(enum connman_technology_state state)
 253 {
 254         switch (state) {
 255         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 256                 break;
 257         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 258                 return "offline";
 259         case CONNMAN_TECHNOLOGY_STATE_AVAILABLE:
 260                 return "available";
 261         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 262                 return "enabled";
 263         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 264                 return "connected";
 265         }
 266
 267         return NULL;
 268 }
 269
 270 static void state_changed(struct connman_technology *technology)
 271 {
 272         const char *str;
 273
 274         str = state2string(technology->state);
 275         if (str == NULL)
 276                 return;
 277
 278         connman_dbus_property_changed_basic(technology->path,
 279                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 280                                                 DBUS_TYPE_STRING, &str);
 281 }
 282
 283 static const char *get_name(enum connman_service_type type)
 284 {
 285         switch (type) {
 286         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 287         case CONNMAN_SERVICE_TYPE_SYSTEM:
 288         case CONNMAN_SERVICE_TYPE_GPS:
 289         case CONNMAN_SERVICE_TYPE_VPN:
 290         case CONNMAN_SERVICE_TYPE_GADGET:
 291                 break;
 292         case CONNMAN_SERVICE_TYPE_ETHERNET:
 293                 return "Wired";
 294         case CONNMAN_SERVICE_TYPE_WIFI:
 295                 return "WiFi";
 296         case CONNMAN_SERVICE_TYPE_WIMAX:
 297                 return "WiMAX";
 298         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 299                 return "Bluetooth";
 300         case CONNMAN_SERVICE_TYPE_CELLULAR:
 301                 return "3G";
 302         }
 303
 304         return NULL;
 305 }
 306
 307 static DBusMessage *get_properties(DBusConnection *conn,
 308                                         DBusMessage *message, void *user_data)
 309 {
 310         struct connman_technology *technology = user_data;
 311         DBusMessage *reply;
 312         DBusMessageIter array, dict;
 313         const char *str;
 314
 315         reply = dbus_message_new_method_return(message);
 316         if (reply == NULL)
 317                 return NULL;
 318
 319         dbus_message_iter_init_append(reply, &array);
 320
 321         connman_dbus_dict_open(&array, &dict);
 322
 323         str = state2string(technology->state);
 324         if (str != NULL)
 325                 connman_dbus_dict_append_basic(&dict, "State",
 326                                                 DBUS_TYPE_STRING, &str);
 327
 328         str = get_name(technology->type);
 329         if (str != NULL)
 330                 connman_dbus_dict_append_basic(&dict, "Name",
 331                                                 DBUS_TYPE_STRING, &str);
 332
 333         str = __connman_service_type2string(technology->type);
 334         if (str != NULL)
 335                 connman_dbus_dict_append_basic(&dict, "Type",
 336                                                 DBUS_TYPE_STRING, &str);
 337
 338         connman_dbus_dict_append_basic(&dict, "Tethering",
 339                                         DBUS_TYPE_BOOLEAN,
 340                                         &technology->tethering);
 341
 342         if (technology->tethering_ident != NULL)
 343                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 344                                                 DBUS_TYPE_STRING,
 345                                                 &technology->tethering_ident);
 346
 347         if (technology->tethering_passphrase != NULL)
 348                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 349                                                 DBUS_TYPE_STRING,
 350                                                 &technology->tethering_passphrase);
 351
 352         connman_dbus_dict_close(&array, &dict);
 353
 354         return reply;
 355 }
 356
 357 static DBusMessage *set_property(DBusConnection *conn,
 358                                         DBusMessage *msg, void *data)
 359 {
 360         struct connman_technology *technology = data;
 361         DBusMessageIter iter, value;
 362         const char *name;
 363         int type;
 364
 365         DBG("conn %p", conn);
 366
 367         if (dbus_message_iter_init(msg, &iter) == FALSE)
 368                 return __connman_error_invalid_arguments(msg);
 369
 370         dbus_message_iter_get_basic(&iter, &name);
 371         dbus_message_iter_next(&iter);
 372         dbus_message_iter_recurse(&iter, &value);
 373
 374         type = dbus_message_iter_get_arg_type(&value);
 375
 376         DBG("property %s", name);
 377
 378         if (g_str_equal(name, "Tethering") == TRUE) {
 379                 int err;
 380                 connman_bool_t tethering;
 381                 const char *bridge;
 382
 383                 if (type != DBUS_TYPE_BOOLEAN)
 384                         return __connman_error_invalid_arguments(msg);
 385
 386                 dbus_message_iter_get_basic(&value, &tethering);
 387
 388                 if (technology->tethering == tethering)
 389                         return __connman_error_in_progress(msg);
 390
 391                 bridge = __connman_tethering_get_bridge();
 392                 if (bridge == NULL)
 393                         return __connman_error_not_supported(msg);
 394
 395                 err = set_tethering(technology, bridge, tethering);
 396                 if (err < 0)
 397                         return __connman_error_failed(msg, -err);
 398
 399         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 400                 const char *str;
 401
 402                 dbus_message_iter_get_basic(&value, &str);
 403
 404                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 405                         return __connman_error_not_supported(msg);
 406
 407                 technology->tethering_ident = g_strdup(str);
 408         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 409                 const char *str;
 410
 411                 dbus_message_iter_get_basic(&value, &str);
 412
 413                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 414                         return __connman_error_not_supported(msg);
 415
 416                 if (strlen(str) < 8)
 417                         return __connman_error_invalid_arguments(msg);
 418
 419                 technology->tethering_passphrase = g_strdup(str);
 420         } else
 421                 return __connman_error_invalid_property(msg);
 422
 423         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 424 }
 425
 426 static GDBusMethodTable technology_methods[] = {
 427         { "GetProperties", "",   "a{sv}", get_properties },
 428         { "SetProperty",   "sv", "",      set_property   },
 429         { },
 430 };
 431
 432 static GDBusSignalTable technology_signals[] = {
 433         { "PropertyChanged", "sv" },
 434         { },
 435 };
 436
 437 static struct connman_technology *technology_find(enum connman_service_type type)
 438 {
 439         GSList *list;
 440
 441         DBG("type %d", type);
 442
 443         for (list = technology_list; list; list = list->next) {
 444                 struct connman_technology *technology = list->data;
 445
 446                 if (technology->type == type)
 447                         return technology;
 448         }
 449
 450         return NULL;
 451 }
 452
 453 static struct connman_technology *technology_get(enum connman_service_type type)
 454 {
 455         struct connman_technology *technology;
 456         const char *str;
 457         GSList *list;
 458
 459         DBG("type %d", type);
 460
 461         technology = technology_find(type);
 462         if (technology != NULL) {
 463                 g_atomic_int_inc(&technology->refcount);
 464                 goto done;
 465         }
 466
 467         str = __connman_service_type2string(type);
 468         if (str == NULL)
 469                 return NULL;
 470
 471         technology = g_try_new0(struct connman_technology, 1);
 472         if (technology == NULL)
 473                 return NULL;
 474
 475         technology->refcount = 1;
 476
 477         technology->type = type;
 478         technology->path = g_strdup_printf("%s/technology/%s",
 479                                                         CONNMAN_PATH, str);
 480
 481         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 482                                                         NULL, free_rfkill);
 483         technology->device_list = NULL;
 484
 485         technology->pending_reply = NULL;
 486         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 487
 488         if (g_dbus_register_interface(connection, technology->path,
 489                                         CONNMAN_TECHNOLOGY_INTERFACE,
 490                                         technology_methods, technology_signals,
 491                                         NULL, technology, NULL) == FALSE) {
 492                 connman_error("Failed to register %s", technology->path);
 493                 g_free(technology);
 494                 return NULL;
 495         }
 496
 497         technology_list = g_slist_append(technology_list, technology);
 498
 499         technologies_changed();
 500
 501         if (technology->driver != NULL)
 502                 goto done;
 503
 504         for (list = driver_list; list; list = list->next) {
 505                 struct connman_technology_driver *driver = list->data;
 506
 507                 DBG("driver %p name %s", driver, driver->name);
 508
 509                 if (driver->type != technology->type)
 510                         continue;
 511
 512                 if (driver->probe(technology) == 0) {
 513                         technology->driver = driver;
 514                         break;
 515                 }
 516         }
 517
 518 done:
 519         DBG("technology %p", technology);
 520
 521         return technology;
 522 }
 523
 524 static void technology_put(struct connman_technology *technology)
 525 {
 526         DBG("technology %p", technology);
 527
 528         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 529                 return;
 530
 531         if (technology->driver) {
 532                 technology->driver->remove(technology);
 533                 technology->driver = NULL;
 534         }
 535
 536         technology_list = g_slist_remove(technology_list, technology);
 537
 538         technologies_changed();
 539
 540         g_dbus_unregister_interface(connection, technology->path,
 541                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 542
 543         g_slist_free(technology->device_list);
 544         g_hash_table_destroy(technology->rfkill_list);
 545
 546         g_free(technology->path);
 547         g_free(technology->regdom);
 548         g_free(technology);
 549 }
 550
 551 void __connman_technology_add_interface(enum connman_service_type type,
 552                                 int index, const char *name, const char *ident)
 553 {
 554         struct connman_technology *technology;
 555
 556         switch (type) {
 557         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 558         case CONNMAN_SERVICE_TYPE_SYSTEM:
 559                 return;
 560         case CONNMAN_SERVICE_TYPE_ETHERNET:
 561         case CONNMAN_SERVICE_TYPE_WIFI:
 562         case CONNMAN_SERVICE_TYPE_WIMAX:
 563         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 564         case CONNMAN_SERVICE_TYPE_CELLULAR:
 565         case CONNMAN_SERVICE_TYPE_GPS:
 566         case CONNMAN_SERVICE_TYPE_VPN:
 567         case CONNMAN_SERVICE_TYPE_GADGET:
 568                 break;
 569         }
 570
 571         connman_info("Create interface %s [ %s ]", name,
 572                                 __connman_service_type2string(type));
 573
 574         technology = technology_get(type);
 575
 576         if (technology == NULL || technology->driver == NULL
 577                         || technology->driver->add_interface == NULL)
 578                 return;
 579
 580         technology->driver->add_interface(technology,
 581                                         index, name, ident);
 582 }
 583
 584 void __connman_technology_remove_interface(enum connman_service_type type,
 585                                 int index, const char *name, const char *ident)
 586 {
 587         struct connman_technology *technology;
 588
 589         switch (type) {
 590         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 591         case CONNMAN_SERVICE_TYPE_SYSTEM:
 592                 return;
 593         case CONNMAN_SERVICE_TYPE_ETHERNET:
 594         case CONNMAN_SERVICE_TYPE_WIFI:
 595         case CONNMAN_SERVICE_TYPE_WIMAX:
 596         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 597         case CONNMAN_SERVICE_TYPE_CELLULAR:
 598         case CONNMAN_SERVICE_TYPE_GPS:
 599         case CONNMAN_SERVICE_TYPE_VPN:
 600         case CONNMAN_SERVICE_TYPE_GADGET:
 601                 break;
 602         }
 603
 604         connman_info("Remove interface %s [ %s ]", name,
 605                                 __connman_service_type2string(type));
 606
 607         technology = technology_find(type);
 608
 609         if (technology == NULL || technology->driver == NULL)
 610                 return;
 611
 612         if (technology->driver->remove_interface)
 613                 technology->driver->remove_interface(technology, index);
 614
 615         technology_put(technology);
 616 }
 617
 618 static void unregister_technology(gpointer data)
 619 {
 620         struct connman_technology *technology = data;
 621
 622         technology_put(technology);
 623 }
 624
 625 int __connman_technology_add_device(struct connman_device *device)
 626 {
 627         struct connman_technology *technology;
 628         enum connman_service_type type;
 629
 630         DBG("device %p", device);
 631
 632         type = __connman_device_get_service_type(device);
 633         __connman_notifier_register(type);
 634
 635         technology = technology_get(type);
 636         if (technology == NULL)
 637                 return -ENXIO;
 638
 639         g_hash_table_insert(device_table, device, technology);
 640
 641         if (g_atomic_int_get(&technology->blocked))
 642                 goto done;
 643
 644         technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 645
 646         state_changed(technology);
 647
 648 done:
 649
 650         technology->device_list = g_slist_append(technology->device_list,
 651                                                                 device);
 652
 653         return 0;
 654 }
 655
 656 int __connman_technology_remove_device(struct connman_device *device)
 657 {
 658         struct connman_technology *technology;
 659         enum connman_service_type type;
 660
 661         DBG("device %p", device);
 662
 663         type = __connman_device_get_service_type(device);
 664         __connman_notifier_unregister(type);
 665
 666         technology = g_hash_table_lookup(device_table, device);
 667         if (technology == NULL)
 668                 return -ENXIO;
 669
 670         technology->device_list = g_slist_remove(technology->device_list,
 671                                                                 device);
 672         if (technology->device_list == NULL) {
 673                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 674                 state_changed(technology);
 675         }
 676
 677         g_hash_table_remove(device_table, device);
 678
 679         return 0;
 680 }
 681
 682 static gboolean technology_pending_reply(gpointer user_data)
 683 {
 684         struct connman_technology *technology = user_data;
 685         DBusMessage *reply;
 686
 687         /* Power request timedout, send ETIMEDOUT. */
 688         if (technology->pending_reply != NULL) {
 689                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 690                 if (reply != NULL)
 691                         g_dbus_send_message(connection, reply);
 692
 693                 dbus_message_unref(technology->pending_reply);
 694                 technology->pending_reply = NULL;
 695                 technology->pending_timeout = 0;
 696         }
 697
 698         return FALSE;
 699 }
 700
 701 int __connman_technology_enabled(enum connman_service_type type)
 702 {
 703         struct connman_technology *technology;
 704
 705         technology = technology_find(type);
 706         if (technology == NULL)
 707                 return -ENXIO;
 708
 709         if (g_atomic_int_get(&technology->blocked))
 710                 return -ERFKILL;
 711
 712         __connman_notifier_enable(type);
 713
 714         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 715                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 716                 state_changed(technology);
 717         }
 718
 719         if (__connman_profile_get_offlinemode() == TRUE) {
 720                 __connman_profile_set_offlinemode(FALSE, FALSE);
 721                 __connman_profile_save_default();
 722         }
 723
 724         if (technology->pending_reply != NULL) {
 725                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 726                 dbus_message_unref(technology->pending_reply);
 727                 technology->pending_reply = NULL;
 728                 technology->pending_timeout = 0;
 729         }
 730
 731         return 0;
 732 }
 733
 734 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 735 {
 736         struct connman_technology *technology;
 737         GSList *list;
 738         int err = 0;
 739         int ret = -ENODEV;
 740         DBusMessage *reply;
 741
 742         DBG("type %d enable", type);
 743
 744         technology = technology_find(type);
 745         if (technology == NULL) {
 746                 err = -ENXIO;
 747                 goto done;
 748         }
 749
 750         if (technology->pending_reply != NULL) {
 751                 err = -EBUSY;
 752                 goto done;
 753         }
 754
 755         if (msg != NULL)
 756                 technology->pending_reply = dbus_message_ref(msg);
 757
 758         for (list = technology->device_list; list; list = list->next) {
 759                 struct connman_device *device = list->data;
 760
 761                 err = __connman_device_enable_persistent(device);
 762                 /*
 763                  * err = 0 : Device was enabled right away.
 764                  * If atleast one device gets enabled, we consider
 765                  * the technology to be enabled.
 766                  */
 767                 if (err == 0)
 768                         ret = 0;
 769         }
 770
 771 done:
 772         if (ret == 0)
 773                 return ret;
 774
 775         if (msg != NULL) {
 776                 if (err == -EINPROGRESS)
 777                         technology->pending_timeout = g_timeout_add_seconds(10,
 778                                         technology_pending_reply, technology);
 779                 else {
 780                         reply = __connman_error_failed(msg, -err);
 781                         if (reply != NULL)
 782                                 g_dbus_send_message(connection, reply);
 783                 }
 784         }
 785
 786         return err;
 787 }
 788
 789 int __connman_technology_disabled(enum connman_service_type type)
 790 {
 791         struct connman_technology *technology;
 792         GSList *list;
 793
 794         technology = technology_find(type);
 795         if (technology == NULL)
 796                 return -ENXIO;
 797
 798         if (technology->pending_reply != NULL) {
 799                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 800                 dbus_message_unref(technology->pending_reply);
 801                 technology->pending_reply = NULL;
 802         }
 803
 804         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 805                 __connman_notifier_disable(type);
 806
 807                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 808                 state_changed(technology);
 809         }
 810
 811         for (list = technology->device_list; list; list = list->next) {
 812                 struct connman_device *device = list->data;
 813
 814                 if (__connman_device_get_blocked(device) == FALSE)
 815                         return 0;
 816         }
 817
 818         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 819         state_changed(technology);
 820
 821         return 0;
 822 }
 823
 824 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 825 {
 826         struct connman_technology *technology;
 827         GSList *list;
 828         int err = 0;
 829         int ret = -ENODEV;
 830         DBusMessage *reply;
 831
 832         DBG("type %d disable", type);
 833
 834         technology = technology_find(type);
 835         if (technology == NULL) {
 836                 err = -ENXIO;
 837                 goto done;
 838         }
 839
 840         if (technology->pending_reply != NULL) {
 841                 err = -EBUSY;
 842                 goto done;
 843         }
 844
 845         if (msg != NULL)
 846                 technology->pending_reply = dbus_message_ref(msg);
 847
 848         for (list = technology->device_list; list; list = list->next) {
 849                 struct connman_device *device = list->data;
 850
 851                 err = __connman_device_disable_persistent(device);
 852                 if (err == 0)
 853                         ret = 0;
 854         }
 855
 856 done:
 857         if (ret == 0)
 858                 return ret;
 859
 860         if (msg != NULL) {
 861                 if (err == -EINPROGRESS)
 862                         technology->pending_timeout = g_timeout_add_seconds(10,
 863                                         technology_pending_reply, technology);
 864                 else {
 865                         reply = __connman_error_failed(msg, -err);
 866                         if (reply != NULL)
 867                                 g_dbus_send_message(connection, reply);
 868                 }
 869         }
 870
 871         return err;
 872 }
 873
 874 static void technology_blocked(struct connman_technology *technology,
 875                                 connman_bool_t blocked)
 876 {
 877         GSList *list;
 878
 879         for (list = technology->device_list; list; list = list->next) {
 880                 struct connman_device *device = list->data;
 881
 882                 __connman_device_set_blocked(device, blocked);
 883         }
 884 }
 885
 886 int __connman_technology_add_rfkill(unsigned int index,
 887                                         enum connman_service_type type,
 888                                                 connman_bool_t softblock,
 889                                                 connman_bool_t hardblock)
 890 {
 891         struct connman_technology *technology;
 892         struct connman_rfkill *rfkill;
 893         connman_bool_t blocked;
 894
 895         DBG("index %u type %d soft %u hard %u", index, type,
 896                                                         softblock, hardblock);
 897
 898         technology = technology_get(type);
 899         if (technology == NULL)
 900                 return -ENXIO;
 901
 902         rfkill = g_try_new0(struct connman_rfkill, 1);
 903         if (rfkill == NULL)
 904                 return -ENOMEM;
 905
 906         rfkill->index = index;
 907         rfkill->type = type;
 908         rfkill->softblock = softblock;
 909         rfkill->hardblock = hardblock;
 910
 911         g_hash_table_replace(rfkill_table, &rfkill->index, technology);
 912
 913         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
 914
 915         blocked = (softblock || hardblock) ? TRUE : FALSE;
 916         if (blocked == FALSE)
 917                 return 0;
 918
 919         if (g_atomic_int_exchange_and_add(&technology->blocked, 1) == 0) {
 920                 technology_blocked(technology, TRUE);
 921
 922                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 923                 state_changed(technology);
 924         }
 925
 926         return 0;
 927 }
 928
 929 int __connman_technology_update_rfkill(unsigned int index,
 930                                                 connman_bool_t softblock,
 931                                                 connman_bool_t hardblock)
 932 {
 933         struct connman_technology *technology;
 934         struct connman_rfkill *rfkill;
 935         connman_bool_t blocked, old_blocked;
 936
 937         DBG("index %u soft %u hard %u", index, softblock, hardblock);
 938
 939         technology = g_hash_table_lookup(rfkill_table, &index);
 940         if (technology == NULL)
 941                 return -ENXIO;
 942
 943         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 944         if (rfkill == NULL)
 945                 return -ENXIO;
 946
 947         old_blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 948         blocked = (softblock || hardblock) ? TRUE : FALSE;
 949
 950         rfkill->softblock = softblock;
 951         rfkill->hardblock = hardblock;
 952
 953         if (blocked == old_blocked)
 954                 return 0;
 955
 956         if (blocked) {
 957                 guint n_blocked;
 958
 959                 n_blocked =
 960                         g_atomic_int_exchange_and_add(&technology->blocked, 1);
 961                 if (n_blocked != g_hash_table_size(technology->rfkill_list) - 1)
 962                         return 0;
 963
 964                 technology_blocked(technology, blocked);
 965                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 966                 state_changed(technology);
 967         } else {
 968                 if (g_atomic_int_dec_and_test(&technology->blocked) == FALSE)
 969                         return 0;
 970
 971                 technology_blocked(technology, blocked);
 972                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 973                 state_changed(technology);
 974         }
 975
 976         return 0;
 977 }
 978
 979 int __connman_technology_remove_rfkill(unsigned int index)
 980 {
 981         struct connman_technology *technology;
 982         struct connman_rfkill *rfkill;
 983         connman_bool_t blocked;
 984
 985         DBG("index %u", index);
 986
 987         technology = g_hash_table_lookup(rfkill_table, &index);
 988         if (technology == NULL)
 989                 return -ENXIO;
 990
 991         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 992         if (rfkill == NULL)
 993                 return -ENXIO;
 994
 995         blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 996
 997         g_hash_table_remove(technology->rfkill_list, &index);
 998
 999         g_hash_table_remove(rfkill_table, &index);
1000
1001         if (blocked &&
1002                 g_atomic_int_dec_and_test(&technology->blocked) == TRUE) {
1003                 technology_blocked(technology, FALSE);
1004                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
1005                 state_changed(technology);
1006         }
1007
1008         return 0;
1009 }
1010
1011 connman_bool_t __connman_technology_get_blocked(enum connman_service_type type)
1012 {
1013         struct connman_technology *technology;
1014
1015         technology = technology_find(type);
1016         if (technology == NULL)
1017                 return FALSE;
1018
1019         if (g_atomic_int_get(&technology->blocked))
1020                 return TRUE;
1021
1022         return FALSE;
1023 }
1024
1025 int __connman_technology_init(void)
1026 {
1027         DBG("");
1028
1029         connection = connman_dbus_get_connection();
1030
1031         rfkill_table = g_hash_table_new_full(g_int_hash, g_int_equal,
1032                                                 NULL, unregister_technology);
1033         device_table = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1034                                                 NULL, unregister_technology);
1035
1036         return 0;
1037 }
1038
1039 void __connman_technology_cleanup(void)
1040 {
1041         DBG("");
1042
1043         g_hash_table_destroy(device_table);
1044         g_hash_table_destroy(rfkill_table);
1045
1046         dbus_connection_unref(connection);
1047 }