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 GSList *technology_list = NULL;
  36
  37 struct connman_rfkill {
  38         unsigned int index;
  39         enum connman_service_type type;
  40         connman_bool_t softblock;
  41         connman_bool_t hardblock;
  42 };
  43
  44 enum connman_technology_state {
  45         CONNMAN_TECHNOLOGY_STATE_UNKNOWN   = 0,
  46         CONNMAN_TECHNOLOGY_STATE_OFFLINE   = 1,
  47         CONNMAN_TECHNOLOGY_STATE_AVAILABLE = 2,
  48         CONNMAN_TECHNOLOGY_STATE_ENABLED   = 3,
  49         CONNMAN_TECHNOLOGY_STATE_CONNECTED = 4,
  50 };
  51
  52 struct connman_technology {
  53         gint refcount;
  54         enum connman_service_type type;
  55         enum connman_technology_state state;
  56         char *path;
  57         GHashTable *rfkill_list;
  58         GSList *device_list;
  59         gint enabled;
  60         gint blocked;
  61         char *regdom;
  62
  63         connman_bool_t tethering;
  64         char *tethering_ident;
  65         char *tethering_passphrase;
  66
  67         connman_bool_t enable_persistent; /* Save the tech state */
  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         __connman_storage_load_technology(technology);
 489
 490         if (g_dbus_register_interface(connection, technology->path,
 491                                         CONNMAN_TECHNOLOGY_INTERFACE,
 492                                         technology_methods, technology_signals,
 493                                         NULL, technology, NULL) == FALSE) {
 494                 connman_error("Failed to register %s", technology->path);
 495                 g_free(technology);
 496                 return NULL;
 497         }
 498
 499         technology_list = g_slist_append(technology_list, technology);
 500
 501         technologies_changed();
 502
 503         if (technology->driver != NULL)
 504                 goto done;
 505
 506         for (list = driver_list; list; list = list->next) {
 507                 struct connman_technology_driver *driver = list->data;
 508
 509                 DBG("driver %p name %s", driver, driver->name);
 510
 511                 if (driver->type != technology->type)
 512                         continue;
 513
 514                 if (driver->probe(technology) == 0) {
 515                         technology->driver = driver;
 516                         break;
 517                 }
 518         }
 519
 520 done:
 521         DBG("technology %p", technology);
 522
 523         return technology;
 524 }
 525
 526 static void technology_put(struct connman_technology *technology)
 527 {
 528         DBG("technology %p", technology);
 529
 530         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 531                 return;
 532
 533         if (technology->driver) {
 534                 technology->driver->remove(technology);
 535                 technology->driver = NULL;
 536         }
 537
 538         technology_list = g_slist_remove(technology_list, technology);
 539
 540         technologies_changed();
 541
 542         g_dbus_unregister_interface(connection, technology->path,
 543                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 544
 545         g_slist_free(technology->device_list);
 546         g_hash_table_destroy(technology->rfkill_list);
 547
 548         g_free(technology->path);
 549         g_free(technology->regdom);
 550         g_free(technology);
 551 }
 552
 553 void __connman_technology_add_interface(enum connman_service_type type,
 554                                 int index, const char *name, const char *ident)
 555 {
 556         struct connman_technology *technology;
 557
 558         switch (type) {
 559         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 560         case CONNMAN_SERVICE_TYPE_SYSTEM:
 561                 return;
 562         case CONNMAN_SERVICE_TYPE_ETHERNET:
 563         case CONNMAN_SERVICE_TYPE_WIFI:
 564         case CONNMAN_SERVICE_TYPE_WIMAX:
 565         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 566         case CONNMAN_SERVICE_TYPE_CELLULAR:
 567         case CONNMAN_SERVICE_TYPE_GPS:
 568         case CONNMAN_SERVICE_TYPE_VPN:
 569         case CONNMAN_SERVICE_TYPE_GADGET:
 570                 break;
 571         }
 572
 573         connman_info("Create interface %s [ %s ]", name,
 574                                 __connman_service_type2string(type));
 575
 576         technology = technology_get(type);
 577
 578         if (technology == NULL || technology->driver == NULL
 579                         || technology->driver->add_interface == NULL)
 580                 return;
 581
 582         technology->driver->add_interface(technology,
 583                                         index, name, ident);
 584 }
 585
 586 void __connman_technology_remove_interface(enum connman_service_type type,
 587                                 int index, const char *name, const char *ident)
 588 {
 589         struct connman_technology *technology;
 590
 591         switch (type) {
 592         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 593         case CONNMAN_SERVICE_TYPE_SYSTEM:
 594                 return;
 595         case CONNMAN_SERVICE_TYPE_ETHERNET:
 596         case CONNMAN_SERVICE_TYPE_WIFI:
 597         case CONNMAN_SERVICE_TYPE_WIMAX:
 598         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 599         case CONNMAN_SERVICE_TYPE_CELLULAR:
 600         case CONNMAN_SERVICE_TYPE_GPS:
 601         case CONNMAN_SERVICE_TYPE_VPN:
 602         case CONNMAN_SERVICE_TYPE_GADGET:
 603                 break;
 604         }
 605
 606         connman_info("Remove interface %s [ %s ]", name,
 607                                 __connman_service_type2string(type));
 608
 609         technology = technology_find(type);
 610
 611         if (technology == NULL || technology->driver == NULL)
 612                 return;
 613
 614         if (technology->driver->remove_interface)
 615                 technology->driver->remove_interface(technology, index);
 616
 617         technology_put(technology);
 618 }
 619
 620 int __connman_technology_add_device(struct connman_device *device)
 621 {
 622         struct connman_technology *technology;
 623         enum connman_service_type type;
 624
 625         DBG("device %p", device);
 626
 627         type = __connman_device_get_service_type(device);
 628         __connman_notifier_register(type);
 629
 630         technology = technology_get(type);
 631         if (technology == NULL)
 632                 return -ENXIO;
 633
 634         if (g_atomic_int_get(&technology->blocked))
 635                 goto done;
 636
 637         technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 638
 639         state_changed(technology);
 640
 641 done:
 642
 643         technology->device_list = g_slist_append(technology->device_list,
 644                                                                 device);
 645
 646         return 0;
 647 }
 648
 649 int __connman_technology_remove_device(struct connman_device *device)
 650 {
 651         struct connman_technology *technology;
 652         enum connman_service_type type;
 653
 654         DBG("device %p", device);
 655
 656         type = __connman_device_get_service_type(device);
 657         __connman_notifier_unregister(type);
 658
 659         technology = technology_find(type);
 660         if (technology == NULL)
 661                 return -ENXIO;
 662
 663         technology->device_list = g_slist_remove(technology->device_list,
 664                                                                 device);
 665         if (technology->device_list == NULL) {
 666                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 667                 state_changed(technology);
 668         }
 669
 670         return 0;
 671 }
 672
 673 static gboolean technology_pending_reply(gpointer user_data)
 674 {
 675         struct connman_technology *technology = user_data;
 676         DBusMessage *reply;
 677
 678         /* Power request timedout, send ETIMEDOUT. */
 679         if (technology->pending_reply != NULL) {
 680                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 681                 if (reply != NULL)
 682                         g_dbus_send_message(connection, reply);
 683
 684                 dbus_message_unref(technology->pending_reply);
 685                 technology->pending_reply = NULL;
 686                 technology->pending_timeout = 0;
 687         }
 688
 689         return FALSE;
 690 }
 691
 692 int __connman_technology_enabled(enum connman_service_type type)
 693 {
 694         struct connman_technology *technology;
 695
 696         technology = technology_find(type);
 697         if (technology == NULL)
 698                 return -ENXIO;
 699
 700         if (g_atomic_int_get(&technology->blocked))
 701                 return -ERFKILL;
 702
 703         __connman_notifier_enable(type);
 704
 705         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 706                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 707                 state_changed(technology);
 708         }
 709
 710         if (__connman_profile_get_offlinemode() == TRUE) {
 711                 __connman_profile_set_offlinemode(FALSE, FALSE);
 712                 __connman_profile_save_default();
 713         }
 714
 715         if (technology->pending_reply != NULL) {
 716                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 717                 dbus_message_unref(technology->pending_reply);
 718                 technology->pending_reply = NULL;
 719                 technology->pending_timeout = 0;
 720         }
 721
 722         return 0;
 723 }
 724
 725 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 726 {
 727         struct connman_technology *technology;
 728         GSList *list;
 729         int err = 0;
 730         int ret = -ENODEV;
 731         DBusMessage *reply;
 732
 733         DBG("type %d enable", type);
 734
 735         technology = technology_find(type);
 736         if (technology == NULL) {
 737                 err = -ENXIO;
 738                 goto done;
 739         }
 740
 741         if (technology->pending_reply != NULL) {
 742                 err = -EBUSY;
 743                 goto done;
 744         }
 745
 746         if (msg != NULL) {
 747                 technology->pending_reply = dbus_message_ref(msg);
 748                 /*
 749                  * This is a bit of a trick. When msg is not NULL it means
 750                  * thats technology_enable was invoked from the manager API. Hence we save
 751                  * the state here.
 752                  */
 753                 technology->enable_persistent = TRUE;
 754                 __connman_storage_save_technology(technology);
 755         }
 756
 757         for (list = technology->device_list; list; list = list->next) {
 758                 struct connman_device *device = list->data;
 759
 760                 err = __connman_device_enable_persistent(device);
 761                 /*
 762                  * err = 0 : Device was enabled right away.
 763                  * If atleast one device gets enabled, we consider
 764                  * the technology to be enabled.
 765                  */
 766                 if (err == 0)
 767                         ret = 0;
 768         }
 769
 770 done:
 771         if (ret == 0)
 772                 return ret;
 773
 774         if (msg != NULL) {
 775                 if (err == -EINPROGRESS)
 776                         technology->pending_timeout = g_timeout_add_seconds(10,
 777                                         technology_pending_reply, technology);
 778                 else {
 779                         reply = __connman_error_failed(msg, -err);
 780                         if (reply != NULL)
 781                                 g_dbus_send_message(connection, reply);
 782                 }
 783         }
 784
 785         return err;
 786 }
 787
 788 int __connman_technology_disabled(enum connman_service_type type)
 789 {
 790         struct connman_technology *technology;
 791         GSList *list;
 792
 793         technology = technology_find(type);
 794         if (technology == NULL)
 795                 return -ENXIO;
 796
 797         if (technology->pending_reply != NULL) {
 798                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 799                 dbus_message_unref(technology->pending_reply);
 800                 technology->pending_reply = NULL;
 801         }
 802
 803         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 804                 __connman_notifier_disable(type);
 805
 806                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 807                 state_changed(technology);
 808         }
 809
 810         for (list = technology->device_list; list; list = list->next) {
 811                 struct connman_device *device = list->data;
 812
 813                 if (__connman_device_get_blocked(device) == FALSE)
 814                         return 0;
 815         }
 816
 817         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 818         state_changed(technology);
 819
 820         return 0;
 821 }
 822
 823 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 824 {
 825         struct connman_technology *technology;
 826         GSList *list;
 827         int err = 0;
 828         int ret = -ENODEV;
 829         DBusMessage *reply;
 830
 831         DBG("type %d disable", type);
 832
 833         technology = technology_find(type);
 834         if (technology == NULL) {
 835                 err = -ENXIO;
 836                 goto done;
 837         }
 838
 839         if (technology->pending_reply != NULL) {
 840                 err = -EBUSY;
 841                 goto done;
 842         }
 843
 844         if (msg != NULL) {
 845                 technology->pending_reply = dbus_message_ref(msg);
 846                 technology->enable_persistent = FALSE;
 847                 __connman_storage_save_technology(technology);
 848         }
 849
 850         for (list = technology->device_list; list; list = list->next) {
 851                 struct connman_device *device = list->data;
 852
 853                 err = __connman_device_disable_persistent(device);
 854                 if (err == 0)
 855                         ret = 0;
 856         }
 857
 858 done:
 859         if (ret == 0)
 860                 return ret;
 861
 862         if (msg != NULL) {
 863                 if (err == -EINPROGRESS)
 864                         technology->pending_timeout = g_timeout_add_seconds(10,
 865                                         technology_pending_reply, technology);
 866                 else {
 867                         reply = __connman_error_failed(msg, -err);
 868                         if (reply != NULL)
 869                                 g_dbus_send_message(connection, reply);
 870                 }
 871         }
 872
 873         return err;
 874 }
 875
 876 static void technology_blocked(struct connman_technology *technology,
 877                                 connman_bool_t blocked)
 878 {
 879         GSList *list;
 880
 881         for (list = technology->device_list; list; list = list->next) {
 882                 struct connman_device *device = list->data;
 883
 884                 __connman_device_set_blocked(device, blocked);
 885         }
 886 }
 887
 888 int __connman_technology_add_rfkill(unsigned int index,
 889                                         enum connman_service_type type,
 890                                                 connman_bool_t softblock,
 891                                                 connman_bool_t hardblock)
 892 {
 893         struct connman_technology *technology;
 894         struct connman_rfkill *rfkill;
 895         connman_bool_t blocked;
 896
 897         DBG("index %u type %d soft %u hard %u", index, type,
 898                                                         softblock, hardblock);
 899
 900         technology = technology_get(type);
 901         if (technology == NULL)
 902                 return -ENXIO;
 903
 904         rfkill = g_try_new0(struct connman_rfkill, 1);
 905         if (rfkill == NULL)
 906                 return -ENOMEM;
 907
 908         rfkill->index = index;
 909         rfkill->type = type;
 910         rfkill->softblock = softblock;
 911         rfkill->hardblock = hardblock;
 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                                         enum connman_service_type type,
 931                                                 connman_bool_t softblock,
 932                                                 connman_bool_t hardblock)
 933 {
 934         struct connman_technology *technology;
 935         struct connman_rfkill *rfkill;
 936         connman_bool_t blocked, old_blocked;
 937
 938         DBG("index %u soft %u hard %u", index, softblock, hardblock);
 939
 940         technology = technology_find(type);
 941         if (technology == NULL)
 942                 return -ENXIO;
 943
 944         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 945         if (rfkill == NULL)
 946                 return -ENXIO;
 947
 948         old_blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 949         blocked = (softblock || hardblock) ? TRUE : FALSE;
 950
 951         rfkill->softblock = softblock;
 952         rfkill->hardblock = hardblock;
 953
 954         if (blocked == old_blocked)
 955                 return 0;
 956
 957         if (blocked) {
 958                 guint n_blocked;
 959
 960                 n_blocked =
 961                         g_atomic_int_exchange_and_add(&technology->blocked, 1);
 962                 if (n_blocked != g_hash_table_size(technology->rfkill_list) - 1)
 963                         return 0;
 964
 965                 technology_blocked(technology, blocked);
 966                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 967                 state_changed(technology);
 968         } else {
 969                 if (g_atomic_int_dec_and_test(&technology->blocked) == FALSE)
 970                         return 0;
 971
 972                 technology_blocked(technology, blocked);
 973                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 974                 state_changed(technology);
 975         }
 976
 977         return 0;
 978 }
 979
 980 int __connman_technology_remove_rfkill(unsigned int index,
 981                                         enum connman_service_type type)
 982 {
 983         struct connman_technology *technology;
 984         struct connman_rfkill *rfkill;
 985         connman_bool_t blocked;
 986
 987         DBG("index %u", index);
 988
 989         technology = technology_find(type);
 990         if (technology == NULL)
 991                 return -ENXIO;
 992
 993         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 994         if (rfkill == NULL)
 995                 return -ENXIO;
 996
 997         blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 998
 999         g_hash_table_remove(technology->rfkill_list, &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 static int technology_load(struct connman_technology *technology)
1026 {
1027         const char *ident = __connman_profile_active_ident();
1028         GKeyFile *keyfile;
1029         gchar *identifier;
1030         GError *error = NULL;
1031         connman_bool_t enable;
1032
1033         DBG("technology %p", technology);
1034
1035         keyfile = __connman_storage_open_profile(ident);
1036         if (keyfile == NULL)
1037                 return 0;
1038
1039         identifier = g_strdup_printf("%s", get_name(technology->type));
1040         if (identifier == NULL)
1041                 goto done;
1042
1043         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
1044         if (error == NULL)
1045                 technology->enable_persistent = enable;
1046         else
1047                 technology->enable_persistent = FALSE;
1048
1049         g_clear_error(&error);
1050 done:
1051         g_free(identifier);
1052
1053         __connman_storage_close_profile(ident, keyfile, FALSE);
1054
1055         return 0;
1056 }
1057
1058 static int technology_save(struct connman_technology *technology)
1059 {
1060         const char *ident = __connman_profile_active_ident();
1061         GKeyFile *keyfile;
1062         gchar *identifier;
1063
1064         DBG("technology %p", technology);
1065
1066         keyfile = __connman_storage_open_profile(ident);
1067         if (keyfile == NULL)
1068                 return 0;
1069
1070         identifier = g_strdup_printf("%s", get_name(technology->type));
1071         if (identifier == NULL)
1072                 goto done;
1073
1074         g_key_file_set_boolean(keyfile, identifier, "Enable",
1075                                 technology->enable_persistent);
1076
1077 done:
1078         g_free(identifier);
1079
1080         __connman_storage_close_profile(ident, keyfile, TRUE);
1081
1082         return 0;
1083 }
1084
1085 static struct connman_storage tech_storage = {
1086         .name           = "technology",
1087         .priority       = CONNMAN_STORAGE_PRIORITY_LOW,
1088         .tech_load      = technology_load,
1089         .tech_save      = technology_save,
1090 };
1091
1092 int __connman_technology_init(void)
1093 {
1094         DBG("");
1095
1096         connection = connman_dbus_get_connection();
1097
1098         return connman_storage_register(&tech_storage);
1099 }
1100
1101 void __connman_technology_cleanup(void)
1102 {
1103         DBG("");
1104
1105         dbus_connection_unref(connection);
1106
1107         connman_storage_unregister(&tech_storage);
1108 }