src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  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 /*
  38  * List of devices with no technology associated with them either because of
  39  * no compiled in support or the driver is not yet loaded.
  40 */
  41 static GSList *techless_device_list = NULL;
  42 static GHashTable *rfkill_list;
  43
  44 static bool global_offlinemode;
  45
  46 struct connman_rfkill {
  47         unsigned int index;
  48         enum connman_service_type type;
  49         bool softblock;
  50         bool hardblock;
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         char *path;
  57         GSList *device_list;
  58         bool enabled;
  59         char *regdom;
  60         bool connected;
  61
  62         bool tethering;
  63         bool tethering_persistent; /* Tells the save status, needed
  64                                               * as offline mode might set
  65                                               * tethering OFF.
  66                                               */
  67         char *tethering_ident;
  68         char *tethering_passphrase;
  69
  70         bool enable_persistent; /* Save the tech state */
  71
  72         GSList *driver_list;
  73
  74         DBusMessage *pending_reply;
  75         guint pending_timeout;
  76
  77         GSList *scan_pending;
  78
  79         bool rfkill_driven;
  80         bool softblocked;
  81         bool hardblocked;
  82         bool dbus_registered;
  83 };
  84
  85 static GSList *driver_list = NULL;
  86
  87 static gint compare_priority(gconstpointer a, gconstpointer b)
  88 {
  89         const struct connman_technology_driver *driver1 = a;
  90         const struct connman_technology_driver *driver2 = b;
  91
  92         return driver2->priority - driver1->priority;
  93 }
  94
  95 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  96 {
  97         struct connman_rfkill *rfkill = value;
  98         enum connman_service_type type = GPOINTER_TO_INT(user_data);
  99
 100         /* Calling _technology_rfkill_add will update the tech. */
 101         if (rfkill->type == type)
 102                 __connman_technology_add_rfkill(rfkill->index, type,
 103                                 rfkill->softblock, rfkill->hardblock);
 104 }
 105
 106 bool
 107 connman_technology_is_tethering_allowed(enum connman_service_type type)
 108 {
 109         static char *allowed_default[] = { "wifi", "bluetooth", "gadget",
 110                                            NULL };
 111         const char *type_str = __connman_service_type2string(type);
 112         char **allowed;
 113         int i;
 114
 115         if (!type_str)
 116                 return false;
 117
 118         allowed = connman_setting_get_string_list("TetheringTechnologies");
 119         if (!allowed)
 120                 allowed = allowed_default;
 121
 122         for (i = 0; allowed[i]; i++) {
 123                 if (g_strcmp0(allowed[i], type_str) == 0)
 124                         return true;
 125         }
 126
 127         return false;
 128 }
 129
 130 static const char *get_name(enum connman_service_type type)
 131 {
 132         switch (type) {
 133         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 134         case CONNMAN_SERVICE_TYPE_SYSTEM:
 135         case CONNMAN_SERVICE_TYPE_GPS:
 136         case CONNMAN_SERVICE_TYPE_VPN:
 137                 break;
 138         case CONNMAN_SERVICE_TYPE_GADGET:
 139                 return "Gadget";
 140         case CONNMAN_SERVICE_TYPE_ETHERNET:
 141                 return "Wired";
 142         case CONNMAN_SERVICE_TYPE_WIFI:
 143                 return "WiFi";
 144         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 145                 return "Bluetooth";
 146         case CONNMAN_SERVICE_TYPE_CELLULAR:
 147                 return "Cellular";
 148         case CONNMAN_SERVICE_TYPE_P2P:
 149                 return "P2P";
 150         }
 151
 152         return NULL;
 153 }
 154
 155 static void technology_save(struct connman_technology *technology)
 156 {
 157         GKeyFile *keyfile;
 158         gchar *identifier;
 159         const char *name = get_name(technology->type);
 160
 161         DBG("technology %p type %d name %s", technology, technology->type,
 162                                                                         name);
 163         if (!name)
 164                 return;
 165
 166         keyfile = __connman_storage_load_global();
 167         if (!keyfile)
 168                 keyfile = g_key_file_new();
 169
 170         identifier = g_strdup_printf("%s", name);
 171         if (!identifier)
 172                 goto done;
 173
 174         g_key_file_set_boolean(keyfile, identifier, "Enable",
 175                                 technology->enable_persistent);
 176
 177         g_key_file_set_boolean(keyfile, identifier, "Tethering",
 178                                 technology->tethering_persistent);
 179
 180         if (technology->tethering_ident)
 181                 g_key_file_set_string(keyfile, identifier,
 182                                         "Tethering.Identifier",
 183                                         technology->tethering_ident);
 184
 185         if (technology->tethering_passphrase)
 186                 g_key_file_set_string(keyfile, identifier,
 187                                         "Tethering.Passphrase",
 188                                         technology->tethering_passphrase);
 189
 190 done:
 191         g_free(identifier);
 192
 193         __connman_storage_save_global(keyfile);
 194
 195         g_key_file_free(keyfile);
 196
 197         return;
 198 }
 199
 200 static void tethering_changed(struct connman_technology *technology)
 201 {
 202         dbus_bool_t tethering = technology->tethering;
 203
 204         connman_dbus_property_changed_basic(technology->path,
 205                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 206                                                 DBUS_TYPE_BOOLEAN, &tethering);
 207
 208         technology_save(technology);
 209 }
 210
 211 void connman_technology_tethering_notify(struct connman_technology *technology,
 212                                                         bool enabled)
 213 {
 214         DBG("technology %p enabled %u", technology, enabled);
 215
 216         if (technology->tethering == enabled)
 217                 return;
 218
 219         technology->tethering = enabled;
 220
 221         tethering_changed(technology);
 222
 223         if (enabled)
 224                 __connman_tethering_set_enabled();
 225         else
 226                 __connman_tethering_set_disabled();
 227 }
 228
 229 static int set_tethering(struct connman_technology *technology,
 230                                 bool enabled)
 231 {
 232         int result = -EOPNOTSUPP;
 233         int err;
 234         const char *ident, *passphrase, *bridge;
 235         GSList *tech_drivers;
 236
 237         ident = technology->tethering_ident;
 238         passphrase = technology->tethering_passphrase;
 239
 240         __sync_synchronize();
 241         if (!technology->enabled)
 242                 return -EACCES;
 243
 244         bridge = __connman_tethering_get_bridge();
 245         if (!bridge)
 246                 return -EOPNOTSUPP;
 247
 248         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI && (!ident))
 249                 return -EINVAL;
 250
 251         for (tech_drivers = technology->driver_list; tech_drivers;
 252              tech_drivers = g_slist_next(tech_drivers)) {
 253                 struct connman_technology_driver *driver = tech_drivers->data;
 254
 255                 if (!driver || !driver->set_tethering)
 256                         continue;
 257
 258                 err = driver->set_tethering(technology, ident, passphrase,
 259                                 bridge, enabled);
 260
 261                 if (result == -EINPROGRESS)
 262                         continue;
 263
 264                 if (err == -EINPROGRESS || err == 0) {
 265                         result = err;
 266                         continue;
 267                 }
 268         }
 269
 270         return result;
 271 }
 272
 273 void connman_technology_regdom_notify(struct connman_technology *technology,
 274                                                         const char *alpha2)
 275 {
 276         DBG("");
 277
 278         if (!alpha2)
 279                 connman_error("Failed to set regulatory domain");
 280         else
 281                 DBG("Regulatory domain set to %s", alpha2);
 282
 283         g_free(technology->regdom);
 284         technology->regdom = g_strdup(alpha2);
 285 }
 286
 287 static int set_regdom_by_device(struct connman_technology *technology,
 288                                                         const char *alpha2)
 289 {
 290         GSList *list;
 291
 292         for (list = technology->device_list; list; list = list->next) {
 293                 struct connman_device *device = list->data;
 294
 295                 if (connman_device_set_regdom(device, alpha2) != 0)
 296                         return -ENOTSUP;
 297         }
 298
 299         return 0;
 300 }
 301
 302 int connman_technology_set_regdom(const char *alpha2)
 303 {
 304         GSList *list, *tech_drivers;
 305
 306         for (list = technology_list; list; list = list->next) {
 307                 struct connman_technology *technology = list->data;
 308
 309                 if (set_regdom_by_device(technology, alpha2) != 0) {
 310
 311                         for (tech_drivers = technology->driver_list;
 312                              tech_drivers;
 313                              tech_drivers = g_slist_next(tech_drivers)) {
 314
 315                                 struct connman_technology_driver *driver =
 316                                         tech_drivers->data;
 317
 318                                 if (driver->set_regdom)
 319                                         driver->set_regdom(technology, alpha2);
 320                         }
 321                 }
 322         }
 323
 324         return 0;
 325 }
 326
 327 static struct connman_technology *technology_find(enum connman_service_type type)
 328 {
 329         GSList *list;
 330
 331         DBG("type %d", type);
 332
 333         for (list = technology_list; list; list = list->next) {
 334                 struct connman_technology *technology = list->data;
 335
 336                 if (technology->type == type)
 337                         return technology;
 338         }
 339
 340         return NULL;
 341 }
 342
 343 bool connman_technology_get_wifi_tethering(const char **ssid,
 344                                                         const char **psk)
 345 {
 346         struct connman_technology *technology;
 347
 348         if (!ssid || !psk)
 349                 return false;
 350
 351         *ssid = *psk = NULL;
 352
 353         technology = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 354         if (!technology)
 355                 return false;
 356
 357         if (!technology->tethering)
 358                 return false;
 359
 360         *ssid = technology->tethering_ident;
 361         *psk = technology->tethering_passphrase;
 362
 363         return true;
 364 }
 365
 366 static void free_rfkill(gpointer data)
 367 {
 368         struct connman_rfkill *rfkill = data;
 369
 370         g_free(rfkill);
 371 }
 372
 373 static void technology_load(struct connman_technology *technology)
 374 {
 375         GKeyFile *keyfile;
 376         gchar *identifier;
 377         GError *error = NULL;
 378         bool enable, need_saving = false;
 379
 380         DBG("technology %p", technology);
 381
 382         keyfile = __connman_storage_load_global();
 383         /* Fallback on disabling technology if file not found. */
 384         if (!keyfile) {
 385                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 386                         /* We enable ethernet by default */
 387                         technology->enable_persistent = true;
 388                 else
 389                         technology->enable_persistent = false;
 390                 return;
 391         }
 392
 393         identifier = g_strdup_printf("%s", get_name(technology->type));
 394         if (!identifier)
 395                 goto done;
 396
 397         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 398         if (!error)
 399                 technology->enable_persistent = enable;
 400         else {
 401                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 402                         technology->enable_persistent = true;
 403                 else
 404                         technology->enable_persistent = false;
 405
 406                 need_saving = true;
 407                 g_clear_error(&error);
 408         }
 409
 410         enable = g_key_file_get_boolean(keyfile, identifier,
 411                                         "Tethering", &error);
 412         if (!error)
 413                 technology->tethering_persistent = enable;
 414         else {
 415                 need_saving = true;
 416                 g_clear_error(&error);
 417         }
 418
 419         if (need_saving)
 420                 technology_save(technology);
 421
 422         technology->tethering_ident = g_key_file_get_string(keyfile,
 423                                 identifier, "Tethering.Identifier", NULL);
 424
 425         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 426                                 identifier, "Tethering.Passphrase", NULL);
 427 done:
 428         g_free(identifier);
 429
 430         g_key_file_free(keyfile);
 431
 432         return;
 433 }
 434
 435 bool __connman_technology_get_offlinemode(void)
 436 {
 437         return global_offlinemode;
 438 }
 439
 440 static void connman_technology_save_offlinemode(void)
 441 {
 442         GKeyFile *keyfile;
 443
 444         keyfile = __connman_storage_load_global();
 445         if (!keyfile)
 446                 keyfile = g_key_file_new();
 447
 448         g_key_file_set_boolean(keyfile, "global",
 449                                         "OfflineMode", global_offlinemode);
 450
 451         __connman_storage_save_global(keyfile);
 452
 453         g_key_file_free(keyfile);
 454
 455         return;
 456 }
 457
 458 static bool connman_technology_load_offlinemode(void)
 459 {
 460         GKeyFile *keyfile;
 461         GError *error = NULL;
 462         bool offlinemode;
 463
 464         /* If there is a error, we enable offlinemode */
 465         keyfile = __connman_storage_load_global();
 466         if (!keyfile)
 467                 return false;
 468
 469         offlinemode = g_key_file_get_boolean(keyfile, "global",
 470                                                 "OfflineMode", &error);
 471         if (error) {
 472                 offlinemode = false;
 473                 g_clear_error(&error);
 474         }
 475
 476         g_key_file_free(keyfile);
 477
 478         return offlinemode;
 479 }
 480
 481 static void append_properties(DBusMessageIter *iter,
 482                 struct connman_technology *technology)
 483 {
 484         DBusMessageIter dict;
 485         dbus_bool_t val;
 486         const char *str;
 487
 488         connman_dbus_dict_open(iter, &dict);
 489
 490         str = get_name(technology->type);
 491         if (str)
 492                 connman_dbus_dict_append_basic(&dict, "Name",
 493                                                 DBUS_TYPE_STRING, &str);
 494
 495         str = __connman_service_type2string(technology->type);
 496         if (str)
 497                 connman_dbus_dict_append_basic(&dict, "Type",
 498                                                 DBUS_TYPE_STRING, &str);
 499
 500         __sync_synchronize();
 501         val = technology->enabled;
 502         connman_dbus_dict_append_basic(&dict, "Powered",
 503                                         DBUS_TYPE_BOOLEAN,
 504                                         &val);
 505
 506         val = technology->connected;
 507         connman_dbus_dict_append_basic(&dict, "Connected",
 508                                         DBUS_TYPE_BOOLEAN,
 509                                         &val);
 510
 511         val = technology->tethering;
 512         connman_dbus_dict_append_basic(&dict, "Tethering",
 513                                         DBUS_TYPE_BOOLEAN,
 514                                         &val);
 515
 516         if (technology->tethering_ident)
 517                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 518                                         DBUS_TYPE_STRING,
 519                                         &technology->tethering_ident);
 520
 521         if (technology->tethering_passphrase)
 522                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 523                                         DBUS_TYPE_STRING,
 524                                         &technology->tethering_passphrase);
 525
 526         connman_dbus_dict_close(iter, &dict);
 527 }
 528
 529 static void technology_added_signal(struct connman_technology *technology)
 530 {
 531         DBusMessage *signal;
 532         DBusMessageIter iter;
 533
 534         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 535                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 536         if (!signal)
 537                 return;
 538
 539         dbus_message_iter_init_append(signal, &iter);
 540         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 541                                                         &technology->path);
 542         append_properties(&iter, technology);
 543
 544         dbus_connection_send(connection, signal, NULL);
 545         dbus_message_unref(signal);
 546 }
 547
 548 static void technology_removed_signal(struct connman_technology *technology)
 549 {
 550         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 551                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 552                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 553                         DBUS_TYPE_INVALID);
 554 }
 555
 556 static DBusMessage *get_properties(DBusConnection *conn,
 557                                         DBusMessage *message, void *user_data)
 558 {
 559         struct connman_technology *technology = user_data;
 560         DBusMessage *reply;
 561         DBusMessageIter iter;
 562
 563         reply = dbus_message_new_method_return(message);
 564         if (!reply)
 565                 return NULL;
 566
 567         dbus_message_iter_init_append(reply, &iter);
 568         append_properties(&iter, technology);
 569
 570         return reply;
 571 }
 572
 573 void __connman_technology_list_struct(DBusMessageIter *array)
 574 {
 575         GSList *list;
 576         DBusMessageIter entry;
 577
 578         for (list = technology_list; list; list = list->next) {
 579                 struct connman_technology *technology = list->data;
 580
 581                 if (!technology->path ||
 582                                 (technology->rfkill_driven &&
 583                                  technology->hardblocked))
 584                         continue;
 585
 586                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 587                                 NULL, &entry);
 588                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 589                                 &technology->path);
 590                 append_properties(&entry, technology);
 591                 dbus_message_iter_close_container(array, &entry);
 592         }
 593 }
 594
 595 static gboolean technology_pending_reply(gpointer user_data)
 596 {
 597         struct connman_technology *technology = user_data;
 598         DBusMessage *reply;
 599
 600         /* Power request timedout, send ETIMEDOUT. */
 601         if (technology->pending_reply) {
 602                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 603                 if (reply)
 604                         g_dbus_send_message(connection, reply);
 605
 606                 dbus_message_unref(technology->pending_reply);
 607                 technology->pending_reply = NULL;
 608                 technology->pending_timeout = 0;
 609         }
 610
 611         return FALSE;
 612 }
 613
 614 static int technology_affect_devices(struct connman_technology *technology,
 615                                                 bool enable_device)
 616 {
 617         GSList *list;
 618         int err = -ENXIO;
 619
 620         if (technology->type == CONNMAN_SERVICE_TYPE_P2P)
 621                 return 0;
 622
 623         for (list = technology->device_list; list; list = list->next) {
 624                 struct connman_device *device = list->data;
 625
 626                 if (enable_device)
 627                         err = __connman_device_enable(device);
 628                 else
 629                         err = __connman_device_disable(device);
 630         }
 631
 632         return err;
 633 }
 634
 635 static void powered_changed(struct connman_technology *technology)
 636 {
 637         dbus_bool_t enabled;
 638
 639         if (!technology->dbus_registered)
 640                 return;
 641
 642         if (technology->pending_reply) {
 643                 g_dbus_send_reply(connection,
 644                                 technology->pending_reply, DBUS_TYPE_INVALID);
 645                 dbus_message_unref(technology->pending_reply);
 646                 technology->pending_reply = NULL;
 647
 648                 g_source_remove(technology->pending_timeout);
 649                 technology->pending_timeout = 0;
 650         }
 651
 652         __sync_synchronize();
 653         enabled = technology->enabled;
 654         connman_dbus_property_changed_basic(technology->path,
 655                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 656                         DBUS_TYPE_BOOLEAN, &enabled);
 657 }
 658
 659 static void enable_tethering(struct connman_technology *technology)
 660 {
 661         int ret;
 662
 663         if (!connman_setting_get_bool("PersistentTetheringMode"))
 664                 return;
 665
 666         ret = set_tethering(technology, true);
 667         if (ret < 0 && ret != -EALREADY)
 668                 DBG("Cannot enable tethering yet for %s (%d/%s)",
 669                         get_name(technology->type),
 670                         -ret, strerror(-ret));
 671 }
 672
 673 static int technology_enabled(struct connman_technology *technology)
 674 {
 675         __sync_synchronize();
 676         if (technology->enabled)
 677                 return -EALREADY;
 678
 679         technology->enabled = true;
 680
 681         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 682                 struct connman_technology *p2p;
 683
 684                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 685                 if (p2p && !p2p->enabled && p2p->enable_persistent)
 686                         technology_enabled(p2p);
 687         }
 688
 689         if (technology->tethering_persistent)
 690                 enable_tethering(technology);
 691
 692         powered_changed(technology);
 693
 694         return 0;
 695 }
 696
 697 static int technology_enable(struct connman_technology *technology)
 698 {
 699         int err = 0;
 700         int err_dev;
 701
 702         DBG("technology %p enable", technology);
 703
 704         __sync_synchronize();
 705
 706         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 707                 struct connman_technology *wifi;
 708
 709                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 710                 if (wifi && wifi->enabled)
 711                         return technology_enabled(technology);
 712                 return 0;
 713         }
 714
 715         if (technology->enabled)
 716                 return -EALREADY;
 717
 718         if (technology->pending_reply)
 719                 return -EBUSY;
 720
 721         if (connman_setting_get_bool("PersistentTetheringMode") &&
 722                                         technology->tethering)
 723                 set_tethering(technology, true);
 724
 725         if (technology->rfkill_driven)
 726                 err = __connman_rfkill_block(technology->type, false);
 727
 728         err_dev = technology_affect_devices(technology, true);
 729
 730         if (!technology->rfkill_driven)
 731                 err = err_dev;
 732
 733         return err;
 734 }
 735
 736 static int technology_disabled(struct connman_technology *technology)
 737 {
 738         __sync_synchronize();
 739         if (!technology->enabled)
 740                 return -EALREADY;
 741
 742         technology->enabled = false;
 743
 744         powered_changed(technology);
 745
 746         return 0;
 747 }
 748
 749 static int technology_disable(struct connman_technology *technology)
 750 {
 751         int err;
 752
 753         DBG("technology %p disable", technology);
 754
 755         __sync_synchronize();
 756
 757         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 758                 technology->enable_persistent = false;
 759                 return technology_disabled(technology);
 760         } else if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 761                 struct connman_technology *p2p;
 762
 763                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 764                 if (p2p && p2p->enabled) {
 765                         p2p->enable_persistent = true;
 766                         technology_disabled(p2p);
 767                 }
 768         }
 769
 770         if (!technology->enabled)
 771                 return -EALREADY;
 772
 773         if (technology->pending_reply)
 774                 return -EBUSY;
 775
 776         if (technology->tethering)
 777                 set_tethering(technology, false);
 778
 779         err = technology_affect_devices(technology, false);
 780
 781         if (technology->rfkill_driven)
 782                 err = __connman_rfkill_block(technology->type, true);
 783
 784         return err;
 785 }
 786
 787 static DBusMessage *set_powered(struct connman_technology *technology,
 788                                 DBusMessage *msg, bool powered)
 789 {
 790         DBusMessage *reply = NULL;
 791         int err = 0;
 792
 793         if (technology->rfkill_driven && technology->hardblocked) {
 794                 err = -EACCES;
 795                 goto make_reply;
 796         }
 797
 798         if (powered)
 799                 err = technology_enable(technology);
 800         else
 801                 err = technology_disable(technology);
 802
 803         if (err != -EBUSY) {
 804                 technology->enable_persistent = powered;
 805                 technology_save(technology);
 806         }
 807
 808 make_reply:
 809         if (err == -EINPROGRESS) {
 810                 technology->pending_reply = dbus_message_ref(msg);
 811                 technology->pending_timeout = g_timeout_add_seconds(10,
 812                                         technology_pending_reply, technology);
 813         } else if (err == -EALREADY) {
 814                 if (powered)
 815                         reply = __connman_error_already_enabled(msg);
 816                 else
 817                         reply = __connman_error_already_disabled(msg);
 818         } else if (err < 0)
 819                 reply = __connman_error_failed(msg, -err);
 820         else
 821                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 822
 823         return reply;
 824 }
 825
 826 static DBusMessage *set_property(DBusConnection *conn,
 827                                         DBusMessage *msg, void *data)
 828 {
 829         struct connman_technology *technology = data;
 830         DBusMessageIter iter, value;
 831         const char *name;
 832         int type;
 833
 834         DBG("conn %p", conn);
 835
 836         if (!dbus_message_iter_init(msg, &iter))
 837                 return __connman_error_invalid_arguments(msg);
 838
 839         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 840                 return __connman_error_invalid_arguments(msg);
 841
 842         dbus_message_iter_get_basic(&iter, &name);
 843         dbus_message_iter_next(&iter);
 844
 845         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 846                 return __connman_error_invalid_arguments(msg);
 847
 848         dbus_message_iter_recurse(&iter, &value);
 849
 850         type = dbus_message_iter_get_arg_type(&value);
 851
 852         DBG("property %s", name);
 853
 854         if (g_str_equal(name, "Tethering")) {
 855                 dbus_bool_t tethering;
 856                 int err;
 857
 858                 if (type != DBUS_TYPE_BOOLEAN)
 859                         return __connman_error_invalid_arguments(msg);
 860
 861                 if (!connman_technology_is_tethering_allowed(technology->type)) {
 862                         DBG("%s tethering not allowed by config file",
 863                                 __connman_service_type2string(technology->type));
 864                         return __connman_error_not_supported(msg);
 865                 }
 866
 867                 dbus_message_iter_get_basic(&value, &tethering);
 868
 869                 if (technology->tethering == tethering) {
 870                         if (!tethering)
 871                                 return __connman_error_already_disabled(msg);
 872                         else
 873                                 return __connman_error_already_enabled(msg);
 874                 }
 875
 876                 err = set_tethering(technology, tethering);
 877                 if (err < 0)
 878                         return __connman_error_failed(msg, -err);
 879
 880                 technology->tethering_persistent = tethering;
 881
 882                 technology_save(technology);
 883
 884         } else if (g_str_equal(name, "TetheringIdentifier")) {
 885                 const char *str;
 886
 887                 dbus_message_iter_get_basic(&value, &str);
 888
 889                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 890                         return __connman_error_not_supported(msg);
 891
 892                 if (strlen(str) < 1 || strlen(str) > 32)
 893                         return __connman_error_invalid_arguments(msg);
 894
 895                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 896                         g_free(technology->tethering_ident);
 897                         technology->tethering_ident = g_strdup(str);
 898                         technology_save(technology);
 899
 900                         connman_dbus_property_changed_basic(technology->path,
 901                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 902                                                 "TetheringIdentifier",
 903                                                 DBUS_TYPE_STRING,
 904                                                 &technology->tethering_ident);
 905                 }
 906         } else if (g_str_equal(name, "TetheringPassphrase")) {
 907                 const char *str;
 908
 909                 dbus_message_iter_get_basic(&value, &str);
 910
 911                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 912                         return __connman_error_not_supported(msg);
 913
 914                 if (strlen(str) < 8 || strlen(str) > 63) {
 915                         if (g_str_equal(str, "")) {
 916                                 technology->tethering_passphrase = NULL;
 917
 918                                 connman_dbus_property_changed_basic(technology->path,
 919                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 920                                                 "TetheringPassphrase",
 921                                                 DBUS_TYPE_STRING,
 922                                                 &str);
 923                         }
 924                         else
 925                                 return __connman_error_passphrase_required(msg);
 926                 } else {
 927                         if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 928                                 g_free(technology->tethering_passphrase);
 929                                 technology->tethering_passphrase = g_strdup(str);
 930                                 technology_save(technology);
 931
 932                                 connman_dbus_property_changed_basic(technology->path,
 933                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 934                                                 "TetheringPassphrase",
 935                                                 DBUS_TYPE_STRING,
 936                                                 &technology->tethering_passphrase);
 937                         }
 938                 }
 939         } else if (g_str_equal(name, "Powered")) {
 940                 dbus_bool_t enable;
 941
 942                 if (type != DBUS_TYPE_BOOLEAN)
 943                         return __connman_error_invalid_arguments(msg);
 944
 945                 dbus_message_iter_get_basic(&value, &enable);
 946
 947                 return set_powered(technology, msg, enable);
 948         } else
 949                 return __connman_error_invalid_property(msg);
 950
 951         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 952 }
 953
 954 static void reply_scan_pending(struct connman_technology *technology, int err)
 955 {
 956         DBusMessage *reply;
 957
 958         DBG("technology %p err %d", technology, err);
 959
 960         while (technology->scan_pending) {
 961                 DBusMessage *msg = technology->scan_pending->data;
 962
 963                 DBG("reply to %s", dbus_message_get_sender(msg));
 964
 965                 if (err == 0)
 966                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 967                 else
 968                         reply = __connman_error_failed(msg, -err);
 969                 g_dbus_send_message(connection, reply);
 970                 dbus_message_unref(msg);
 971
 972                 technology->scan_pending =
 973                         g_slist_delete_link(technology->scan_pending,
 974                                         technology->scan_pending);
 975         }
 976 }
 977
 978 void __connman_technology_scan_started(struct connman_device *device)
 979 {
 980         DBG("device %p", device);
 981 }
 982
 983 void __connman_technology_scan_stopped(struct connman_device *device,
 984                                         enum connman_service_type type)
 985 {
 986         int count = 0;
 987         struct connman_technology *technology;
 988         GSList *list;
 989
 990         technology = technology_find(type);
 991
 992         DBG("technology %p device %p", technology, device);
 993
 994         if (!technology)
 995                 return;
 996
 997         for (list = technology->device_list; list; list = list->next) {
 998                 struct connman_device *other_device = list->data;
 999
1000                 if (device == other_device)
1001                         continue;
1002
1003                 if (__connman_device_get_service_type(other_device) != type)
1004                         continue;
1005
1006                 if (connman_device_get_scanning(other_device))
1007                         count += 1;
1008         }
1009
1010         if (count == 0)
1011                 reply_scan_pending(technology, 0);
1012 }
1013
1014 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
1015                                                 int result, const char *alpha2)
1016 {
1017         bool regdom_set = false;
1018         struct connman_technology *technology;
1019         enum connman_service_type type;
1020         GSList *tech_drivers;
1021
1022         type = __connman_device_get_service_type(device);
1023         technology = technology_find(type);
1024
1025         if (!technology)
1026                 return;
1027
1028         if (result < 0) {
1029
1030                 for (tech_drivers = technology->driver_list;
1031                      tech_drivers;
1032                      tech_drivers = g_slist_next(tech_drivers)) {
1033                         struct connman_technology_driver *driver =
1034                                 tech_drivers->data;
1035
1036                         if (driver->set_regdom) {
1037                                 driver->set_regdom(technology, alpha2);
1038                                 regdom_set = true;
1039                         }
1040
1041                 }
1042
1043                 if (!regdom_set)
1044                         alpha2 = NULL;
1045         }
1046
1047         connman_technology_regdom_notify(technology, alpha2);
1048 }
1049
1050 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
1051 {
1052         struct connman_technology *technology = data;
1053         int err;
1054
1055         DBG("technology %p request from %s", technology,
1056                         dbus_message_get_sender(msg));
1057
1058         dbus_message_ref(msg);
1059         technology->scan_pending =
1060                 g_slist_prepend(technology->scan_pending, msg);
1061
1062         err = __connman_device_request_scan(technology->type);
1063         if (err < 0)
1064                 reply_scan_pending(technology, err);
1065
1066         return NULL;
1067 }
1068
1069 static const GDBusMethodTable technology_methods[] = {
1070         { GDBUS_DEPRECATED_METHOD("GetProperties",
1071                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
1072                         get_properties) },
1073         { GDBUS_ASYNC_METHOD("SetProperty",
1074                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
1075                         NULL, set_property) },
1076         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
1077         { },
1078 };
1079
1080 static const GDBusSignalTable technology_signals[] = {
1081         { GDBUS_SIGNAL("PropertyChanged",
1082                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
1083         { GDBUS_SIGNAL("DhcpConnected",
1084                         GDBUS_ARGS({ "aptype", "s" },
1085                                 { "ipaddr", "s" },
1086                                 { "macaddr", "s" },
1087                                 { "hostname", "s" })) },
1088         { GDBUS_SIGNAL("DhcpLeaseDeleted",
1089                         GDBUS_ARGS({ "aptype", "s" },
1090                                 { "ipaddr", "s" },
1091                                 { "macaddr", "s" },
1092                                 { "hostname", "s" })) },
1093         { },
1094 };
1095
1096 static bool technology_dbus_register(struct connman_technology *technology)
1097 {
1098         if (technology->dbus_registered ||
1099                                 (technology->rfkill_driven &&
1100                                  technology->hardblocked))
1101                 return true;
1102
1103         if (!g_dbus_register_interface(connection, technology->path,
1104                                         CONNMAN_TECHNOLOGY_INTERFACE,
1105                                         technology_methods, technology_signals,
1106                                         NULL, technology, NULL)) {
1107                 connman_error("Failed to register %s", technology->path);
1108                 return false;
1109         }
1110
1111         technology_added_signal(technology);
1112         technology->dbus_registered = true;
1113
1114         return true;
1115 }
1116
1117 static void technology_dbus_unregister(struct connman_technology *technology)
1118 {
1119         if (!technology->dbus_registered)
1120                 return;
1121
1122         technology_removed_signal(technology);
1123         g_dbus_unregister_interface(connection, technology->path,
1124                 CONNMAN_TECHNOLOGY_INTERFACE);
1125
1126         technology->dbus_registered = false;
1127 }
1128
1129 static void technology_put(struct connman_technology *technology)
1130 {
1131         DBG("technology %p", technology);
1132
1133         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1134                 return;
1135
1136         reply_scan_pending(technology, -EINTR);
1137
1138         while (technology->driver_list) {
1139                 struct connman_technology_driver *driver;
1140
1141                 driver = technology->driver_list->data;
1142
1143                 if (driver->remove)
1144                         driver->remove(technology);
1145
1146                 technology->driver_list =
1147                         g_slist_delete_link(technology->driver_list,
1148                                         technology->driver_list);
1149         }
1150
1151         technology_list = g_slist_remove(technology_list, technology);
1152
1153         technology_dbus_unregister(technology);
1154
1155         g_slist_free(technology->device_list);
1156
1157         g_free(technology->path);
1158         g_free(technology->regdom);
1159         g_free(technology->tethering_ident);
1160         g_free(technology->tethering_passphrase);
1161         g_free(technology);
1162 }
1163
1164 static struct connman_technology *technology_get(enum connman_service_type type)
1165 {
1166         GSList *tech_drivers = NULL;
1167         struct connman_technology_driver *driver;
1168         struct connman_technology *technology;
1169         const char *str;
1170         GSList *list;
1171
1172         DBG("type %d", type);
1173
1174         str = __connman_service_type2string(type);
1175         if (!str)
1176                 return NULL;
1177
1178         technology = technology_find(type);
1179         if (technology) {
1180                 if (type != CONNMAN_SERVICE_TYPE_P2P)
1181                         __sync_fetch_and_add(&technology->refcount, 1);
1182                 return technology;
1183         }
1184
1185         /* First check if we have a driver for this technology type */
1186         for (list = driver_list; list; list = list->next) {
1187                 driver = list->data;
1188
1189                 if (driver->type == type) {
1190                         DBG("technology %p driver %p", technology, driver);
1191                         tech_drivers = g_slist_append(tech_drivers, driver);
1192                 }
1193         }
1194
1195         if (!tech_drivers) {
1196                 DBG("No matching drivers found for %s.",
1197                                 __connman_service_type2string(type));
1198                 return NULL;
1199         }
1200
1201         technology = g_try_new0(struct connman_technology, 1);
1202         if (!technology)
1203                 return NULL;
1204
1205         technology->refcount = 1;
1206         technology->type = type;
1207         technology->path = g_strdup_printf("%s/technology/%s",
1208                                                         CONNMAN_PATH, str);
1209         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1210                 struct connman_technology *wifi;
1211
1212                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
1213                 if (wifi)
1214                         technology->enabled = wifi->enabled;
1215         }
1216
1217         technology_load(technology);
1218         technology_list = g_slist_prepend(technology_list, technology);
1219         technology->driver_list = tech_drivers;
1220
1221         for (list = tech_drivers; list; list = list->next) {
1222                 driver = list->data;
1223
1224                 if (driver->probe && driver->probe(technology) < 0)
1225                         DBG("Driver probe failed for technology %p",
1226                                         technology);
1227         }
1228
1229         if (!technology_dbus_register(technology)) {
1230                 technology_put(technology);
1231                 return NULL;
1232         }
1233
1234         DBG("technology %p", technology);
1235
1236         return technology;
1237 }
1238
1239 int connman_technology_driver_register(struct connman_technology_driver *driver)
1240 {
1241         GSList *list;
1242         struct connman_device *device;
1243         enum connman_service_type type;
1244
1245         for (list = driver_list; list; list = list->next) {
1246                 if (list->data == driver)
1247                         goto exist;
1248         }
1249
1250         DBG("Registering %s driver", driver->name);
1251
1252         driver_list = g_slist_insert_sorted(driver_list, driver,
1253                                                         compare_priority);
1254
1255         /*
1256          * Check for technology less devices if this driver
1257          * can service any of them.
1258         */
1259         for (list = techless_device_list; list; list = list->next) {
1260                 device = list->data;
1261
1262                 type = __connman_device_get_service_type(device);
1263                 if (type != driver->type)
1264                         continue;
1265
1266                 techless_device_list = g_slist_remove(techless_device_list,
1267                                                                 device);
1268
1269                 __connman_technology_add_device(device);
1270         }
1271
1272         /* Check for orphaned rfkill switches. */
1273         g_hash_table_foreach(rfkill_list, rfkill_check,
1274                                         GINT_TO_POINTER(driver->type));
1275
1276 exist:
1277         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1278                 if (!technology_get(CONNMAN_SERVICE_TYPE_P2P))
1279                         return -ENOMEM;
1280         }
1281
1282         return 0;
1283 }
1284
1285 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
1286 {
1287         GSList *list, *tech_drivers;
1288         struct connman_technology *technology;
1289         struct connman_technology_driver *current;
1290
1291         DBG("Unregistering driver %p name %s", driver, driver->name);
1292
1293         for (list = technology_list; list; list = list->next) {
1294                 technology = list->data;
1295
1296                 for (tech_drivers = technology->driver_list; tech_drivers;
1297                                 tech_drivers = g_slist_next(tech_drivers)) {
1298                         current = tech_drivers->data;
1299                         if (driver != current)
1300                                 continue;
1301
1302                         if (driver->remove)
1303                                 driver->remove(technology);
1304
1305                         technology->driver_list =
1306                                 g_slist_remove(technology->driver_list,
1307                                                                 driver);
1308                         break;
1309                 }
1310         }
1311
1312         driver_list = g_slist_remove(driver_list, driver);
1313
1314         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1315                 technology = technology_find(CONNMAN_SERVICE_TYPE_P2P);
1316                 if (technology)
1317                         technology_put(technology);
1318         }
1319 }
1320
1321 void __connman_technology_add_interface(enum connman_service_type type,
1322                                 int index, const char *ident)
1323 {
1324         struct connman_technology *technology;
1325         GSList *tech_drivers;
1326         struct connman_technology_driver *driver;
1327         char *name;
1328
1329         switch (type) {
1330         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1331         case CONNMAN_SERVICE_TYPE_SYSTEM:
1332                 return;
1333         case CONNMAN_SERVICE_TYPE_ETHERNET:
1334         case CONNMAN_SERVICE_TYPE_WIFI:
1335         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1336         case CONNMAN_SERVICE_TYPE_CELLULAR:
1337         case CONNMAN_SERVICE_TYPE_GPS:
1338         case CONNMAN_SERVICE_TYPE_VPN:
1339         case CONNMAN_SERVICE_TYPE_GADGET:
1340         case CONNMAN_SERVICE_TYPE_P2P:
1341                 break;
1342         }
1343
1344         name = connman_inet_ifname(index);
1345         connman_info("Adding interface %s [ %s ]", name,
1346                                 __connman_service_type2string(type));
1347
1348         technology = technology_find(type);
1349
1350         if (!technology)
1351                 goto out;
1352
1353         for (tech_drivers = technology->driver_list; tech_drivers;
1354              tech_drivers = g_slist_next(tech_drivers)) {
1355                 driver = tech_drivers->data;
1356
1357                 if (driver->add_interface)
1358                         driver->add_interface(technology, index, name, ident);
1359         }
1360
1361         /*
1362          * At this point we can try to enable tethering automatically as
1363          * now the interfaces are set properly.
1364          */
1365         if (technology->tethering_persistent)
1366                 enable_tethering(technology);
1367
1368 out:
1369         g_free(name);
1370 }
1371
1372 void __connman_technology_remove_interface(enum connman_service_type type,
1373                                 int index, const char *ident)
1374 {
1375         struct connman_technology *technology;
1376         GSList *tech_drivers;
1377         struct connman_technology_driver *driver;
1378         char *name;
1379
1380         switch (type) {
1381         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1382         case CONNMAN_SERVICE_TYPE_SYSTEM:
1383                 return;
1384         case CONNMAN_SERVICE_TYPE_ETHERNET:
1385         case CONNMAN_SERVICE_TYPE_WIFI:
1386         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1387         case CONNMAN_SERVICE_TYPE_CELLULAR:
1388         case CONNMAN_SERVICE_TYPE_GPS:
1389         case CONNMAN_SERVICE_TYPE_VPN:
1390         case CONNMAN_SERVICE_TYPE_GADGET:
1391         case CONNMAN_SERVICE_TYPE_P2P:
1392                 break;
1393         }
1394
1395         name = connman_inet_ifname(index);
1396         connman_info("Remove interface %s [ %s ]", name,
1397                                 __connman_service_type2string(type));
1398         g_free(name);
1399
1400         technology = technology_find(type);
1401
1402         if (!technology)
1403                 return;
1404
1405         for (tech_drivers = technology->driver_list; tech_drivers;
1406              tech_drivers = g_slist_next(tech_drivers)) {
1407                 driver = tech_drivers->data;
1408
1409                 if (driver->remove_interface)
1410                         driver->remove_interface(technology, index);
1411         }
1412 }
1413
1414 int __connman_technology_add_device(struct connman_device *device)
1415 {
1416         struct connman_technology *technology;
1417         enum connman_service_type type;
1418
1419         type = __connman_device_get_service_type(device);
1420
1421         DBG("device %p type %s", device, get_name(type));
1422
1423         technology = technology_get(type);
1424         if (!technology) {
1425                 /*
1426                  * Since no driver can be found for this device at the moment we
1427                  * add it to the techless device list.
1428                 */
1429                 techless_device_list = g_slist_prepend(techless_device_list,
1430                                                                 device);
1431
1432                 return -ENXIO;
1433         }
1434
1435         __sync_synchronize();
1436         if (technology->rfkill_driven) {
1437                 if (technology->enabled)
1438                         __connman_device_enable(device);
1439                 else
1440                         __connman_device_disable(device);
1441
1442                 goto done;
1443         }
1444
1445         if (technology->enable_persistent &&
1446                                         !global_offlinemode) {
1447                 int err = __connman_device_enable(device);
1448                 /*
1449                  * connman_technology_add_device() calls __connman_device_enable()
1450                  * but since the device is already enabled, the calls does not
1451                  * propagate through to connman_technology_enabled via
1452                  * connman_device_set_powered.
1453                  */
1454                 if (err == -EALREADY)
1455                         __connman_technology_enabled(type);
1456         }
1457         /* if technology persistent state is offline */
1458         if (!technology->enable_persistent)
1459                 __connman_device_disable(device);
1460
1461 done:
1462         technology->device_list = g_slist_prepend(technology->device_list,
1463                                                                 device);
1464
1465         return 0;
1466 }
1467
1468 int __connman_technology_remove_device(struct connman_device *device)
1469 {
1470         struct connman_technology *technology;
1471         enum connman_service_type type;
1472
1473         DBG("device %p", device);
1474
1475         type = __connman_device_get_service_type(device);
1476
1477         technology = technology_find(type);
1478         if (!technology) {
1479                 techless_device_list = g_slist_remove(techless_device_list,
1480                                                                 device);
1481                 return -ENXIO;
1482         }
1483
1484         technology->device_list = g_slist_remove(technology->device_list,
1485                                                                 device);
1486
1487         if (technology->tethering)
1488                 set_tethering(technology, false);
1489
1490         technology_put(technology);
1491
1492         return 0;
1493 }
1494
1495 int __connman_technology_enabled(enum connman_service_type type)
1496 {
1497         struct connman_technology *technology;
1498
1499         technology = technology_find(type);
1500         if (!technology)
1501                 return -ENXIO;
1502
1503         DBG("technology %p type %s rfkill %d enabled %d", technology,
1504                 get_name(type), technology->rfkill_driven,
1505                 technology->enabled);
1506
1507         if (technology->rfkill_driven) {
1508                 if (technology->tethering_persistent)
1509                         enable_tethering(technology);
1510                 return 0;
1511         }
1512
1513         return technology_enabled(technology);
1514 }
1515
1516 int __connman_technology_disabled(enum connman_service_type type)
1517 {
1518         struct connman_technology *technology;
1519         GSList *list;
1520
1521         technology = technology_find(type);
1522         if (!technology)
1523                 return -ENXIO;
1524
1525         if (technology->rfkill_driven)
1526                 return 0;
1527
1528         for (list = technology->device_list; list; list = list->next) {
1529                 struct connman_device *device = list->data;
1530
1531                 if (connman_device_get_powered(device))
1532                         return 0;
1533         }
1534
1535         return technology_disabled(technology);
1536 }
1537
1538 int __connman_technology_set_offlinemode(bool offlinemode)
1539 {
1540         GSList *list;
1541         int err = -EINVAL, enabled_tech_count = 0;
1542
1543         if (global_offlinemode == offlinemode)
1544                 return 0;
1545
1546         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1547
1548         /*
1549          * This is a bit tricky. When you set offlinemode, there is no
1550          * way to differentiate between attempting offline mode and
1551          * resuming offlinemode from last saved profile. We need that
1552          * information in rfkill_update, otherwise it falls back on the
1553          * technology's persistent state. Hence we set the offline mode here
1554          * but save it & call the notifier only if its successful.
1555          */
1556
1557         global_offlinemode = offlinemode;
1558
1559         /* Traverse technology list, enable/disable each technology. */
1560         for (list = technology_list; list; list = list->next) {
1561                 struct connman_technology *technology = list->data;
1562
1563                 if (offlinemode)
1564                         err = technology_disable(technology);
1565                 else {
1566                         if (technology->hardblocked)
1567                                 continue;
1568
1569                         if (technology->enable_persistent) {
1570                                 err = technology_enable(technology);
1571                                 enabled_tech_count++;
1572                         }
1573                 }
1574         }
1575
1576         if (err == 0 || err == -EINPROGRESS || err == -EALREADY ||
1577                         (err == -EINVAL && enabled_tech_count == 0)) {
1578                 connman_technology_save_offlinemode();
1579                 __connman_notifier_offlinemode(offlinemode);
1580         } else
1581                 global_offlinemode = connman_technology_load_offlinemode();
1582
1583         return err;
1584 }
1585
1586 void __connman_technology_set_connected(enum connman_service_type type,
1587                 bool connected)
1588 {
1589         struct connman_technology *technology;
1590         dbus_bool_t val;
1591
1592         technology = technology_find(type);
1593         if (!technology)
1594                 return;
1595
1596         DBG("technology %p connected %d", technology, connected);
1597
1598         technology->connected = connected;
1599
1600         val = connected;
1601         connman_dbus_property_changed_basic(technology->path,
1602                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1603                         DBUS_TYPE_BOOLEAN, &val);
1604 }
1605
1606 static bool technology_apply_rfkill_change(struct connman_technology *technology,
1607                                                 bool softblock,
1608                                                 bool hardblock,
1609                                                 bool new_rfkill)
1610 {
1611         bool hardblock_changed = false;
1612         bool apply = true;
1613         GList *start, *list;
1614
1615         DBG("technology %p --> %d/%d vs %d/%d",
1616                         technology, softblock, hardblock,
1617                         technology->softblocked, technology->hardblocked);
1618
1619         if (technology->hardblocked == hardblock)
1620                 goto softblock_change;
1621
1622         if (!(new_rfkill && !hardblock)) {
1623                 start = g_hash_table_get_values(rfkill_list);
1624
1625                 for (list = start; list; list = list->next) {
1626                         struct connman_rfkill *rfkill = list->data;
1627
1628                         if (rfkill->type != technology->type)
1629                                 continue;
1630
1631                         if (rfkill->hardblock != hardblock)
1632                                 apply = false;
1633                 }
1634
1635                 g_list_free(start);
1636         }
1637
1638         if (!apply)
1639                 goto softblock_change;
1640
1641         technology->hardblocked = hardblock;
1642         hardblock_changed = true;
1643
1644 softblock_change:
1645         if (!apply && technology->softblocked != softblock)
1646                 apply = true;
1647
1648         if (!apply)
1649                 return technology->hardblocked;
1650
1651         technology->softblocked = softblock;
1652
1653         if (technology->hardblocked ||
1654                                         technology->softblocked) {
1655                 if (technology_disabled(technology) != -EALREADY)
1656                         technology_affect_devices(technology, false);
1657         } else if (!technology->hardblocked &&
1658                                         !technology->softblocked) {
1659                 if (technology_enabled(technology) != -EALREADY)
1660                         technology_affect_devices(technology, true);
1661         }
1662
1663         if (hardblock_changed) {
1664                 if (technology->hardblocked) {
1665                         DBG("%s is switched off.", get_name(technology->type));
1666                         technology_dbus_unregister(technology);
1667                 } else {
1668                         DBG("%s is switched on.", get_name(technology->type));
1669                         technology_dbus_register(technology);
1670
1671                         if (global_offlinemode)
1672                                 __connman_rfkill_block(technology->type, true);
1673                 }
1674         }
1675
1676         return technology->hardblocked;
1677 }
1678
1679 int __connman_technology_add_rfkill(unsigned int index,
1680                                         enum connman_service_type type,
1681                                                 bool softblock,
1682                                                 bool hardblock)
1683 {
1684         struct connman_technology *technology;
1685         struct connman_rfkill *rfkill;
1686
1687         DBG("index %u type %d soft %u hard %u", index, type,
1688                                                         softblock, hardblock);
1689
1690         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1691         if (rfkill)
1692                 goto done;
1693
1694         rfkill = g_try_new0(struct connman_rfkill, 1);
1695         if (!rfkill)
1696                 return -ENOMEM;
1697
1698         rfkill->index = index;
1699         rfkill->type = type;
1700         rfkill->softblock = softblock;
1701         rfkill->hardblock = hardblock;
1702
1703         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1704
1705 done:
1706         technology = technology_get(type);
1707         /* If there is no driver for this type, ignore it. */
1708         if (!technology)
1709                 return -ENXIO;
1710
1711         technology->rfkill_driven = true;
1712
1713         /* If hardblocked, there is no need to handle softblocked state */
1714         if (technology_apply_rfkill_change(technology,
1715                                 softblock, hardblock, true))
1716                 return 0;
1717
1718         if (global_offlinemode)
1719                 return 0;
1720
1721         /*
1722          * Depending on softblocked state we unblock/block according to
1723          * offlinemode and persistente state.
1724          */
1725         if (technology->softblocked &&
1726                                 technology->enable_persistent)
1727                 return __connman_rfkill_block(type, false);
1728         else if (!technology->softblocked &&
1729                                 !technology->enable_persistent)
1730                 return __connman_rfkill_block(type, true);
1731
1732         return 0;
1733 }
1734
1735 int __connman_technology_update_rfkill(unsigned int index,
1736                                         enum connman_service_type type,
1737                                                 bool softblock,
1738                                                 bool hardblock)
1739 {
1740         struct connman_technology *technology;
1741         struct connman_rfkill *rfkill;
1742
1743         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1744
1745         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1746         if (!rfkill)
1747                 return -ENXIO;
1748
1749         if (rfkill->softblock == softblock &&
1750                                 rfkill->hardblock == hardblock)
1751                 return 0;
1752
1753         rfkill->softblock = softblock;
1754         rfkill->hardblock = hardblock;
1755
1756         technology = technology_find(type);
1757         /* If there is no driver for this type, ignore it. */
1758         if (!technology)
1759                 return -ENXIO;
1760
1761         technology_apply_rfkill_change(technology, softblock, hardblock,
1762                                                                 false);
1763
1764         if (technology->hardblocked)
1765                 DBG("%s hardblocked", get_name(technology->type));
1766         else
1767                 DBG("%s is%s softblocked", get_name(technology->type),
1768                         technology->softblocked ? "" : " not");
1769
1770         return 0;
1771 }
1772
1773 int __connman_technology_remove_rfkill(unsigned int index,
1774                                         enum connman_service_type type)
1775 {
1776         struct connman_technology *technology;
1777         struct connman_rfkill *rfkill;
1778
1779         DBG("index %u", index);
1780
1781         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1782         if (!rfkill)
1783                 return -ENXIO;
1784
1785         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1786
1787         technology = technology_find(type);
1788         if (!technology)
1789                 return -ENXIO;
1790
1791         technology_apply_rfkill_change(technology,
1792                 technology->softblocked, !technology->hardblocked, false);
1793
1794         technology_put(technology);
1795
1796         return 0;
1797 }
1798
1799 int __connman_technology_init(void)
1800 {
1801         DBG("");
1802
1803         connection = connman_dbus_get_connection();
1804
1805         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1806                                                         NULL, free_rfkill);
1807
1808         global_offlinemode = connman_technology_load_offlinemode();
1809
1810         /* This will create settings file if it is missing */
1811         connman_technology_save_offlinemode();
1812
1813         return 0;
1814 }
1815
1816 void __connman_technology_cleanup(void)
1817 {
1818         DBG("");
1819
1820         g_hash_table_destroy(rfkill_list);
1821
1822         dbus_connection_unref(connection);
1823 }