plugins/wifi.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 <unistd.h>
  27 #include <stdlib.h>
  28 #include <errno.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <sys/ioctl.h>
  32 #include <sys/socket.h>
  33 #include <linux/if_arp.h>
  34 #include <linux/wireless.h>
  35 #include <net/ethernet.h>
  36
  37 #ifndef IFF_LOWER_UP
  38 #define IFF_LOWER_UP    0x10000
  39 #endif
  40
  41 #include <dbus/dbus.h>
  42 #include <glib.h>
  43
  44 #define CONNMAN_API_SUBJECT_TO_CHANGE
  45 #include <connman/plugin.h>
  46 #include <connman/inet.h>
  47 #include <connman/device.h>
  48 #include <connman/rtnl.h>
  49 #include <connman/technology.h>
  50 #include <connman/log.h>
  51 #include <connman/option.h>
  52 #include <connman/storage.h>
  53
  54 #include <gsupplicant/gsupplicant.h>
  55
  56 #define CLEANUP_TIMEOUT   8     /* in seconds */
  57 #define INACTIVE_TIMEOUT  12    /* in seconds */
  58 #define MAXIMUM_RETRIES   4
  59
  60 struct connman_technology *wifi_technology = NULL;
  61
  62 struct hidden_params {
  63         char ssid[32];
  64         unsigned int ssid_len;
  65         char *identity;
  66         char *passphrase;
  67 };
  68
  69 struct wifi_data {
  70         char *identifier;
  71         struct connman_device *device;
  72         struct connman_network *network;
  73         struct connman_network *pending_network;
  74         GSList *networks;
  75         GSupplicantInterface *interface;
  76         GSupplicantState state;
  77         connman_bool_t connected;
  78         connman_bool_t disconnecting;
  79         connman_bool_t tethering;
  80         connman_bool_t bridged;
  81         const char *bridge;
  82         int index;
  83         unsigned flags;
  84         unsigned int watch;
  85         int retries;
  86         struct hidden_params *hidden;
  87 };
  88
  89 static GList *iface_list = NULL;
  90
  91 static void handle_tethering(struct wifi_data *wifi)
  92 {
  93         if (wifi->tethering == FALSE)
  94                 return;
  95
  96         if (wifi->bridge == NULL)
  97                 return;
  98
  99         if (wifi->bridged == TRUE)
 100                 return;
 101
 102         DBG("index %d bridge %s", wifi->index, wifi->bridge);
 103
 104         if (connman_inet_add_to_bridge(wifi->index, wifi->bridge) < 0)
 105                 return;
 106
 107         wifi->bridged = TRUE;
 108 }
 109
 110 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
 111 {
 112         struct connman_device *device = user_data;
 113         struct wifi_data *wifi = connman_device_get_data(device);
 114
 115         DBG("index %d flags %d change %d", wifi->index, flags, change);
 116
 117         if (!change)
 118                 return;
 119
 120         if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
 121                 if (flags & IFF_UP)
 122                         DBG("interface up");
 123                 else
 124                         DBG("interface down");
 125         }
 126
 127         if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 128                 if (flags & IFF_LOWER_UP) {
 129                         DBG("carrier on");
 130
 131                         handle_tethering(wifi);
 132                 } else
 133                         DBG("carrier off");
 134         }
 135
 136         wifi->flags = flags;
 137 }
 138
 139 static int wifi_probe(struct connman_device *device)
 140 {
 141         struct wifi_data *wifi;
 142
 143         DBG("device %p", device);
 144
 145         wifi = g_try_new0(struct wifi_data, 1);
 146         if (wifi == NULL)
 147                 return -ENOMEM;
 148
 149         wifi->connected = FALSE;
 150         wifi->disconnecting = FALSE;
 151         wifi->tethering = FALSE;
 152         wifi->bridged = FALSE;
 153         wifi->bridge = NULL;
 154         wifi->state = G_SUPPLICANT_STATE_INACTIVE;
 155
 156         connman_device_set_data(device, wifi);
 157         wifi->device = connman_device_ref(device);
 158
 159         wifi->index = connman_device_get_index(device);
 160         wifi->flags = 0;
 161
 162         wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
 163                                                         wifi_newlink, device);
 164
 165         iface_list = g_list_append(iface_list, wifi);
 166
 167         return 0;
 168 }
 169
 170 static void remove_networks(struct connman_device *device,
 171                                 struct wifi_data *wifi)
 172 {
 173         GSList *list;
 174
 175         for (list = wifi->networks; list != NULL; list = list->next) {
 176                 struct connman_network *network = list->data;
 177
 178                 connman_device_remove_network(device, network);
 179                 connman_network_unref(network);
 180         }
 181
 182         g_slist_free(wifi->networks);
 183         wifi->networks = NULL;
 184 }
 185
 186 static void wifi_remove(struct connman_device *device)
 187 {
 188         struct wifi_data *wifi = connman_device_get_data(device);
 189
 190         DBG("device %p wifi %p", device, wifi);
 191
 192         if (wifi == NULL)
 193                 return;
 194
 195         iface_list = g_list_remove(iface_list, wifi);
 196
 197         remove_networks(device, wifi);
 198
 199         connman_device_set_data(device, NULL);
 200         connman_device_unref(wifi->device);
 201         connman_rtnl_remove_watch(wifi->watch);
 202
 203         g_supplicant_interface_set_data(wifi->interface, NULL);
 204
 205         g_free(wifi->identifier);
 206         g_free(wifi);
 207 }
 208
 209 static void interface_create_callback(int result,
 210                                         GSupplicantInterface *interface,
 211                                                         void *user_data)
 212 {
 213         struct wifi_data *wifi = user_data;
 214
 215         DBG("result %d ifname %s, wifi %p", result,
 216                                 g_supplicant_interface_get_ifname(interface),
 217                                 wifi);
 218
 219         if (result < 0 || wifi == NULL)
 220                 return;
 221
 222         wifi->interface = interface;
 223         g_supplicant_interface_set_data(interface, wifi);
 224
 225         if (g_supplicant_interface_get_ready(interface) == FALSE)
 226                 return;
 227
 228         DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
 229
 230         if (wifi->device == NULL) {
 231                 connman_error("WiFi device not set");
 232                 return;
 233         }
 234
 235         connman_device_set_powered(wifi->device, TRUE);
 236 }
 237
 238 static void interface_remove_callback(int result,
 239                                         GSupplicantInterface *interface,
 240                                                         void *user_data)
 241 {
 242         struct wifi_data *wifi;
 243
 244         wifi = g_supplicant_interface_get_data(interface);
 245
 246         DBG("result %d wifi %p", result, wifi);
 247
 248         if (result < 0 || wifi == NULL)
 249                 return;
 250
 251         wifi->interface = NULL;
 252 }
 253
 254
 255 static int wifi_enable(struct connman_device *device)
 256 {
 257         struct wifi_data *wifi = connman_device_get_data(device);
 258         const char *interface = connman_device_get_string(device, "Interface");
 259         const char *driver = connman_option_get_string("wifi");
 260         int ret;
 261
 262         DBG("device %p %p", device, wifi);
 263
 264         ret = g_supplicant_interface_create(interface, driver, NULL,
 265                                                 interface_create_callback,
 266                                                         wifi);
 267         if (ret < 0)
 268                 return ret;
 269
 270         return -EINPROGRESS;
 271 }
 272
 273 static int wifi_disable(struct connman_device *device)
 274 {
 275         struct wifi_data *wifi = connman_device_get_data(device);
 276         int ret;
 277
 278         DBG("device %p", device);
 279
 280         wifi->connected = FALSE;
 281         wifi->disconnecting = FALSE;
 282
 283         if (wifi->pending_network != NULL)
 284                 wifi->pending_network = NULL;
 285
 286         remove_networks(device, wifi);
 287
 288         ret = g_supplicant_interface_remove(wifi->interface,
 289                                                 interface_remove_callback,
 290                                                 NULL);
 291         if (ret < 0)
 292                 return ret;
 293
 294         return -EINPROGRESS;
 295 }
 296
 297 static void hidden_free(struct hidden_params *hidden)
 298 {
 299         if (hidden == NULL)
 300                 return;
 301
 302         g_free(hidden->identity);
 303         g_free(hidden->passphrase);
 304         g_free(hidden);
 305 }
 306
 307 static void scan_callback(int result, GSupplicantInterface *interface,
 308                                                 void *user_data)
 309 {
 310         struct connman_device *device = user_data;
 311         struct wifi_data *wifi = connman_device_get_data(device);
 312
 313         DBG("result %d", result);
 314
 315         if (wifi != NULL && wifi->hidden != NULL) {
 316                 hidden_free(wifi->hidden);
 317                 wifi->hidden = NULL;
 318         }
 319
 320         if (result < 0)
 321                 connman_device_reset_scanning(device);
 322         else
 323                 connman_device_set_scanning(device, FALSE);
 324         connman_device_unref(device);
 325 }
 326
 327 static int add_scan_param(gchar *hex_ssid, int freq,
 328                         GSupplicantScanParams *scan_data,
 329                         int driver_max_scan_ssids)
 330 {
 331         unsigned int i;
 332
 333         if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
 334                 gchar *ssid;
 335                 unsigned int j = 0, hex;
 336                 size_t hex_ssid_len = strlen(hex_ssid);
 337
 338                 ssid = g_try_malloc0(hex_ssid_len / 2);
 339                 if (ssid == NULL)
 340                         return -ENOMEM;
 341
 342                 for (i = 0; i < hex_ssid_len; i += 2) {
 343                         sscanf(hex_ssid + i, "%02x", &hex);
 344                         ssid[j++] = hex;
 345                 }
 346
 347                 memcpy(scan_data->ssids[scan_data->num_ssids].ssid, ssid, j);
 348                 scan_data->ssids[scan_data->num_ssids].ssid_len = j;
 349                 scan_data->num_ssids++;
 350
 351                 g_free(ssid);
 352         }
 353
 354         /* Don't add duplicate entries */
 355         for (i = 0; i < G_SUPPLICANT_MAX_FAST_SCAN; i++) {
 356                 if (scan_data->freqs[i] == 0) {
 357                         scan_data->freqs[i] = freq;
 358                         break;
 359                 } else if (scan_data->freqs[i] == freq)
 360                         break;
 361         }
 362
 363         return 0;
 364 }
 365
 366 struct last_connected {
 367         GTimeVal modified;
 368         gchar *ssid;
 369         int freq;
 370 };
 371
 372 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
 373 {
 374         GTimeVal *aval = (GTimeVal *)a;
 375         GTimeVal *bval = (GTimeVal *)b;
 376
 377         /* Note that the sort order is descending */
 378         if (aval->tv_sec < bval->tv_sec)
 379                 return 1;
 380
 381         if (aval->tv_sec > bval->tv_sec)
 382                 return -1;
 383
 384         return 0;
 385 }
 386
 387 static void free_entry(gpointer data)
 388 {
 389         struct last_connected *entry = data;
 390
 391         g_free(entry->ssid);
 392         g_free(entry);
 393 }
 394
 395 static int get_latest_connections(int max_ssids,
 396                                 GSupplicantScanParams *scan_data)
 397 {
 398         GSequenceIter *iter;
 399         GSequence *latest_list;
 400         struct last_connected *entry;
 401         GKeyFile *keyfile;
 402         GTimeVal modified;
 403         gchar **services;
 404         gchar *str;
 405         char *ssid;
 406         int i, freq;
 407         int num_ssids = 0;
 408
 409         latest_list = g_sequence_new(free_entry);
 410         if (latest_list == NULL)
 411                 return -ENOMEM;
 412
 413         services = connman_storage_get_services();
 414         for (i = 0; services && services[i]; i++) {
 415                 if (strncmp(services[i], "wifi_", 5) != 0)
 416                         continue;
 417
 418                 keyfile = connman_storage_load_service(services[i]);
 419
 420                 str = g_key_file_get_string(keyfile,
 421                                         services[i], "Favorite", NULL);
 422                 if (str == NULL || g_strcmp0(str, "true")) {
 423                         if (str)
 424                                 g_free(str);
 425                         g_key_file_free(keyfile);
 426                         continue;
 427                 }
 428                 g_free(str);
 429
 430                 str = g_key_file_get_string(keyfile,
 431                                         services[i], "AutoConnect", NULL);
 432                 if (str == NULL || g_strcmp0(str, "true")) {
 433                         if (str)
 434                                 g_free(str);
 435                         g_key_file_free(keyfile);
 436                         continue;
 437                 }
 438                 g_free(str);
 439
 440                 str = g_key_file_get_string(keyfile,
 441                                         services[i], "Modified", NULL);
 442                 if (str != NULL) {
 443                         g_time_val_from_iso8601(str, &modified);
 444                         g_free(str);
 445                 }
 446
 447                 ssid = g_key_file_get_string(keyfile,
 448                                         services[i], "SSID", NULL);
 449
 450                 freq = g_key_file_get_integer(keyfile, services[i],
 451                                         "Frequency", NULL);
 452                 if (freq) {
 453                         entry = g_try_new(struct last_connected, 1);
 454                         if (entry == NULL) {
 455                                 g_sequence_free(latest_list);
 456                                 g_key_file_free(keyfile);
 457                                 g_free(ssid);
 458                                 return -ENOMEM;
 459                         }
 460
 461                         entry->ssid = ssid;
 462                         entry->modified = modified;
 463                         entry->freq = freq;
 464
 465                         g_sequence_insert_sorted(latest_list, entry,
 466                                                 sort_entry, NULL);
 467                         num_ssids++;
 468                 } else
 469                         g_free(ssid);
 470
 471                 g_key_file_free(keyfile);
 472         }
 473
 474         g_strfreev(services);
 475
 476         num_ssids = num_ssids > G_SUPPLICANT_MAX_FAST_SCAN ?
 477                 G_SUPPLICANT_MAX_FAST_SCAN : num_ssids;
 478
 479         iter = g_sequence_get_begin_iter(latest_list);
 480
 481         for (i = 0; i < num_ssids; i++) {
 482                 entry = g_sequence_get(iter);
 483
 484                 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
 485                                                 entry->modified.tv_sec);
 486
 487                 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
 488
 489                 iter = g_sequence_iter_next(iter);
 490         }
 491
 492         g_sequence_free(latest_list);
 493         return num_ssids;
 494 }
 495
 496 static int wifi_scan(struct connman_device *device)
 497 {
 498         struct wifi_data *wifi = connman_device_get_data(device);
 499         int ret;
 500
 501         DBG("device %p %p", device, wifi->interface);
 502
 503         if (wifi->tethering == TRUE)
 504                 return 0;
 505
 506         connman_device_ref(device);
 507         ret = g_supplicant_interface_scan(wifi->interface, NULL,
 508                                         scan_callback, device);
 509         if (ret == 0)
 510                 connman_device_set_scanning(device, TRUE);
 511         else
 512                 connman_device_unref(device);
 513
 514         return ret;
 515 }
 516
 517 static int wifi_scan_fast(struct connman_device *device)
 518 {
 519         struct wifi_data *wifi = connman_device_get_data(device);
 520         GSupplicantScanParams *scan_params = NULL;
 521         int ret;
 522         int driver_max_ssids = 0;
 523
 524         DBG("device %p %p", device, wifi->interface);
 525
 526         if (wifi->tethering == TRUE)
 527                 return 0;
 528
 529         driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
 530                                                         wifi->interface);
 531         DBG("max ssids %d", driver_max_ssids);
 532         if (driver_max_ssids == 0)
 533                 return wifi_scan(device);
 534
 535         scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
 536         if (scan_params == NULL)
 537                 return -ENOMEM;
 538
 539         ret = get_latest_connections(driver_max_ssids, scan_params);
 540         if (ret <= 0) {
 541                 g_free(scan_params);
 542                 return wifi_scan(device);
 543         }
 544
 545         connman_device_ref(device);
 546         ret = g_supplicant_interface_scan(wifi->interface, scan_params,
 547                                                 scan_callback, device);
 548         if (ret == 0)
 549                 connman_device_set_scanning(device, TRUE);
 550         else {
 551                 g_free(scan_params);
 552                 connman_device_unref(device);
 553         }
 554
 555         return ret;
 556 }
 557
 558 static int wifi_scan_hidden(struct connman_device *device,
 559                 const char *ssid, unsigned int ssid_len,
 560                 const char *identity, const char* passphrase)
 561 {
 562         struct wifi_data *wifi = connman_device_get_data(device);
 563         GSupplicantScanParams *scan_params = NULL;
 564         struct hidden_params *hidden;
 565         int ret;
 566
 567         DBG("hidden SSID %s", ssid);
 568
 569         if (wifi->tethering == TRUE || wifi->hidden != NULL)
 570                 return -EBUSY;
 571
 572         if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
 573                 return -EINVAL;
 574
 575         scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
 576         if (scan_params == NULL)
 577                 return -ENOMEM;
 578         memcpy(scan_params->ssids[0].ssid, ssid, ssid_len);
 579         scan_params->ssids[0].ssid_len = ssid_len;
 580         scan_params->num_ssids = 1;
 581
 582         hidden = g_try_new0(struct hidden_params, 1);
 583         if (hidden == NULL) {
 584                 g_free(scan_params);
 585                 return -ENOMEM;
 586         }
 587         memcpy(hidden->ssid, ssid, ssid_len);
 588         hidden->ssid_len = ssid_len;
 589         hidden->identity = g_strdup(identity);
 590         hidden->passphrase = g_strdup(passphrase);
 591         wifi->hidden = hidden;
 592
 593         connman_device_ref(device);
 594         ret = g_supplicant_interface_scan(wifi->interface, scan_params,
 595                         scan_callback, device);
 596         if (ret == 0)
 597                 connman_device_set_scanning(device, TRUE);
 598         else {
 599                 connman_device_unref(device);
 600                 g_free(scan_params);
 601                 hidden_free(wifi->hidden);
 602                 wifi->hidden = NULL;
 603         }
 604
 605         return ret;
 606 }
 607
 608 static struct connman_device_driver wifi_ng_driver = {
 609         .name           = "wifi",
 610         .type           = CONNMAN_DEVICE_TYPE_WIFI,
 611         .priority       = CONNMAN_DEVICE_PRIORITY_LOW,
 612         .probe          = wifi_probe,
 613         .remove         = wifi_remove,
 614         .enable         = wifi_enable,
 615         .disable        = wifi_disable,
 616         .scan           = wifi_scan,
 617         .scan_fast      = wifi_scan_fast,
 618         .scan_hidden    = wifi_scan_hidden,
 619 };
 620
 621 static void system_ready(void)
 622 {
 623         DBG("");
 624
 625         if (connman_device_driver_register(&wifi_ng_driver) < 0)
 626                 connman_error("Failed to register WiFi driver");
 627 }
 628
 629 static void system_killed(void)
 630 {
 631         DBG("");
 632
 633         connman_device_driver_unregister(&wifi_ng_driver);
 634 }
 635
 636 static int network_probe(struct connman_network *network)
 637 {
 638         DBG("network %p", network);
 639
 640         return 0;
 641 }
 642
 643 static void network_remove(struct connman_network *network)
 644 {
 645         struct connman_device *device = connman_network_get_device(network);
 646         struct wifi_data *wifi;
 647
 648         DBG("network %p", network);
 649
 650         wifi = connman_device_get_data(device);
 651         if (wifi == NULL)
 652                 return;
 653
 654         if (wifi->network != network)
 655                 return;
 656
 657         wifi->network = NULL;
 658 }
 659
 660 static void connect_callback(int result, GSupplicantInterface *interface,
 661                                                         void *user_data)
 662 {
 663         struct connman_network *network = user_data;
 664
 665         DBG("network %p result %d", network, result);
 666
 667         if (result == -ENOKEY) {
 668                 connman_network_set_error(network,
 669                                         CONNMAN_NETWORK_ERROR_INVALID_KEY);
 670         } else if (result < 0) {
 671                 connman_network_set_error(network,
 672                                         CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
 673         }
 674 }
 675
 676 static GSupplicantSecurity network_security(const char *security)
 677 {
 678         if (g_str_equal(security, "none") == TRUE)
 679                 return G_SUPPLICANT_SECURITY_NONE;
 680         else if (g_str_equal(security, "wep") == TRUE)
 681                 return G_SUPPLICANT_SECURITY_WEP;
 682         else if (g_str_equal(security, "psk") == TRUE)
 683                 return G_SUPPLICANT_SECURITY_PSK;
 684         else if (g_str_equal(security, "wpa") == TRUE)
 685                 return G_SUPPLICANT_SECURITY_PSK;
 686         else if (g_str_equal(security, "rsn") == TRUE)
 687                 return G_SUPPLICANT_SECURITY_PSK;
 688         else if (g_str_equal(security, "ieee8021x") == TRUE)
 689                 return G_SUPPLICANT_SECURITY_IEEE8021X;
 690
 691         return G_SUPPLICANT_SECURITY_UNKNOWN;
 692 }
 693
 694 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
 695 {
 696         const char *security, *passphrase, *agent_passphrase;
 697
 698         memset(ssid, 0, sizeof(*ssid));
 699         ssid->mode = G_SUPPLICANT_MODE_INFRA;
 700         ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
 701                                                 &ssid->ssid_len);
 702         ssid->scan_ssid = 1;
 703         security = connman_network_get_string(network, "WiFi.Security");
 704         ssid->security = network_security(security);
 705         passphrase = connman_network_get_string(network,
 706                                                 "WiFi.Passphrase");
 707         if (passphrase == NULL || strlen(passphrase) == 0) {
 708
 709                 /* Use agent provided passphrase as a fallback */
 710                 agent_passphrase = connman_network_get_string(network,
 711                                                 "WiFi.AgentPassphrase");
 712
 713                 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
 714                         ssid->passphrase = NULL;
 715                 else
 716                         ssid->passphrase = agent_passphrase;
 717         } else
 718                 ssid->passphrase = passphrase;
 719
 720         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 721
 722         /*
 723          * If our private key password is unset,
 724          * we use the supplied passphrase. That is needed
 725          * for PEAP where 2 passphrases (identity and client
 726          * cert may have to be provided.
 727          */
 728         if (connman_network_get_string(network,
 729                                         "WiFi.PrivateKeyPassphrase") == NULL)
 730                 connman_network_set_string(network,
 731                                                 "WiFi.PrivateKeyPassphrase",
 732                                                 ssid->passphrase);
 733         /* We must have an identity for both PEAP and TLS */
 734         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 735
 736         /* Use agent provided identity as a fallback */
 737         if (ssid->identity == NULL || strlen(ssid->identity) == 0)
 738                 ssid->identity = connman_network_get_string(network,
 739                                                         "WiFi.AgentIdentity");
 740
 741         ssid->ca_cert_path = connman_network_get_string(network,
 742                                                         "WiFi.CACertFile");
 743         ssid->client_cert_path = connman_network_get_string(network,
 744                                                         "WiFi.ClientCertFile");
 745         ssid->private_key_path = connman_network_get_string(network,
 746                                                         "WiFi.PrivateKeyFile");
 747         ssid->private_key_passphrase = connman_network_get_string(network,
 748                                                 "WiFi.PrivateKeyPassphrase");
 749         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 750
 751         ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
 752         ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
 753
 754 }
 755
 756 static int network_connect(struct connman_network *network)
 757 {
 758         struct connman_device *device = connman_network_get_device(network);
 759         struct wifi_data *wifi;
 760         GSupplicantInterface *interface;
 761         GSupplicantSSID *ssid;
 762
 763         DBG("network %p", network);
 764
 765         if (device == NULL)
 766                 return -ENODEV;
 767
 768         wifi = connman_device_get_data(device);
 769         if (wifi == NULL)
 770                 return -ENODEV;
 771
 772         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 773         if (ssid == NULL)
 774                 return -ENOMEM;
 775
 776         interface = wifi->interface;
 777
 778         ssid_init(ssid, network);
 779
 780         if (wifi->disconnecting == TRUE)
 781                 wifi->pending_network = network;
 782         else {
 783                 wifi->network = network;
 784                 wifi->retries = 0;
 785
 786                 return g_supplicant_interface_connect(interface, ssid,
 787                                                 connect_callback, network);
 788         }
 789
 790         return -EINPROGRESS;
 791 }
 792
 793 static void disconnect_callback(int result, GSupplicantInterface *interface,
 794                                                                 void *user_data)
 795 {
 796         struct wifi_data *wifi = user_data;
 797
 798         if (wifi->network != NULL) {
 799                 /*
 800                  * if result < 0 supplican return an error because
 801                  * the network is not current.
 802                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 803                  * failed, call connman_network_set_connected to report
 804                  * disconnect is completed.
 805                  */
 806                 if (result < 0)
 807                         connman_network_set_connected(wifi->network, FALSE);
 808         }
 809
 810         wifi->network = NULL;
 811
 812         wifi->disconnecting = FALSE;
 813
 814         if (wifi->pending_network != NULL) {
 815                 network_connect(wifi->pending_network);
 816                 wifi->pending_network = NULL;
 817         }
 818
 819 }
 820
 821 static int network_disconnect(struct connman_network *network)
 822 {
 823         struct connman_device *device = connman_network_get_device(network);
 824         struct wifi_data *wifi;
 825         int err;
 826
 827         DBG("network %p", network);
 828
 829         wifi = connman_device_get_data(device);
 830         if (wifi == NULL || wifi->interface == NULL)
 831                 return -ENODEV;
 832
 833         connman_network_set_associating(network, FALSE);
 834
 835         if (wifi->disconnecting == TRUE)
 836                 return -EALREADY;
 837
 838         wifi->disconnecting = TRUE;
 839
 840         err = g_supplicant_interface_disconnect(wifi->interface,
 841                                                 disconnect_callback, wifi);
 842         if (err < 0)
 843                 wifi->disconnecting = FALSE;
 844
 845         return err;
 846 }
 847
 848 static struct connman_network_driver network_driver = {
 849         .name           = "wifi",
 850         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 851         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 852         .probe          = network_probe,
 853         .remove         = network_remove,
 854         .connect        = network_connect,
 855         .disconnect     = network_disconnect,
 856 };
 857
 858 static void interface_added(GSupplicantInterface *interface)
 859 {
 860         const char *ifname = g_supplicant_interface_get_ifname(interface);
 861         const char *driver = g_supplicant_interface_get_driver(interface);
 862         struct wifi_data *wifi;
 863
 864         wifi = g_supplicant_interface_get_data(interface);
 865
 866         /*
 867          * We can get here with a NULL wifi pointer when
 868          * the interface added signal is sent before the
 869          * interface creation callback is called.
 870          */
 871         if (wifi == NULL)
 872                 return;
 873
 874         DBG("ifname %s driver %s wifi %p tethering %d",
 875                         ifname, driver, wifi, wifi->tethering);
 876
 877         if (wifi->device == NULL) {
 878                 connman_error("WiFi device not set");
 879                 return;
 880         }
 881
 882         connman_device_set_powered(wifi->device, TRUE);
 883
 884         if (wifi->tethering == TRUE)
 885                 return;
 886 }
 887
 888 static connman_bool_t is_idle(struct wifi_data *wifi)
 889 {
 890         DBG("state %d", wifi->state);
 891
 892         switch (wifi->state) {
 893         case G_SUPPLICANT_STATE_UNKNOWN:
 894         case G_SUPPLICANT_STATE_DISCONNECTED:
 895         case G_SUPPLICANT_STATE_INACTIVE:
 896         case G_SUPPLICANT_STATE_SCANNING:
 897                 return TRUE;
 898
 899         case G_SUPPLICANT_STATE_AUTHENTICATING:
 900         case G_SUPPLICANT_STATE_ASSOCIATING:
 901         case G_SUPPLICANT_STATE_ASSOCIATED:
 902         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 903         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 904         case G_SUPPLICANT_STATE_COMPLETED:
 905                 return FALSE;
 906         }
 907
 908         return FALSE;
 909 }
 910
 911 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
 912                                                 struct wifi_data *wifi)
 913 {
 914         /* First, let's check if WPS processing did not went wrong */
 915         if (g_supplicant_interface_get_wps_state(interface) ==
 916                 G_SUPPLICANT_WPS_STATE_FAIL)
 917                 return FALSE;
 918
 919         /* Unlike normal connection, being associated while processing wps
 920          * actually means that we are idling. */
 921         switch (wifi->state) {
 922         case G_SUPPLICANT_STATE_UNKNOWN:
 923         case G_SUPPLICANT_STATE_DISCONNECTED:
 924         case G_SUPPLICANT_STATE_INACTIVE:
 925         case G_SUPPLICANT_STATE_SCANNING:
 926         case G_SUPPLICANT_STATE_ASSOCIATED:
 927                 return TRUE;
 928         case G_SUPPLICANT_STATE_AUTHENTICATING:
 929         case G_SUPPLICANT_STATE_ASSOCIATING:
 930         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 931         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 932         case G_SUPPLICANT_STATE_COMPLETED:
 933                 return FALSE;
 934         }
 935
 936         return FALSE;
 937 }
 938
 939 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
 940                                         struct connman_network *network,
 941                                         struct connman_device *device,
 942                                         struct wifi_data *wifi)
 943 {
 944         connman_bool_t wps;
 945
 946         wps = connman_network_get_bool(network, "WiFi.UseWPS");
 947         if (wps == TRUE) {
 948                 const unsigned char *ssid, *wps_ssid;
 949                 unsigned int ssid_len, wps_ssid_len;
 950                 const char *wps_key;
 951
 952                 /* Checking if we got associated with requested
 953                  * network */
 954                 ssid = connman_network_get_blob(network, "WiFi.SSID",
 955                                                 &ssid_len);
 956
 957                 wps_ssid = g_supplicant_interface_get_wps_ssid(
 958                         interface, &wps_ssid_len);
 959
 960                 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
 961                                 memcmp(ssid, wps_ssid, ssid_len) != 0) {
 962                         connman_network_set_associating(network, FALSE);
 963                         g_supplicant_interface_disconnect(wifi->interface,
 964                                                 disconnect_callback, wifi);
 965                         return FALSE;
 966                 }
 967
 968                 wps_key = g_supplicant_interface_get_wps_key(interface);
 969                 connman_network_set_string(network, "WiFi.Passphrase",
 970                                         wps_key);
 971
 972                 connman_network_set_string(network, "WiFi.PinWPS", NULL);
 973         }
 974
 975         return TRUE;
 976 }
 977
 978 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
 979                                         struct connman_network *network,
 980                                         struct wifi_data *wifi)
 981 {
 982         if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
 983                 return FALSE;
 984
 985         wifi->retries++;
 986
 987         if (wifi->retries < MAXIMUM_RETRIES)
 988                 return TRUE;
 989
 990         connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
 991
 992         return FALSE;
 993 }
 994
 995 static void interface_state(GSupplicantInterface *interface)
 996 {
 997         struct connman_network *network;
 998         struct connman_device *device;
 999         struct wifi_data *wifi;
1000         GSupplicantState state = g_supplicant_interface_get_state(interface);
1001         connman_bool_t wps;
1002
1003         wifi = g_supplicant_interface_get_data(interface);
1004
1005         DBG("wifi %p interface state %d", wifi, state);
1006
1007         if (wifi == NULL)
1008                 return;
1009
1010         network = wifi->network;
1011         device = wifi->device;
1012
1013         if (device == NULL || network == NULL)
1014                 return;
1015
1016         switch (state) {
1017         case G_SUPPLICANT_STATE_SCANNING:
1018                 break;
1019
1020         case G_SUPPLICANT_STATE_AUTHENTICATING:
1021         case G_SUPPLICANT_STATE_ASSOCIATING:
1022                 connman_network_set_associating(network, TRUE);
1023                 break;
1024
1025         case G_SUPPLICANT_STATE_COMPLETED:
1026                 if (handle_wps_completion(interface, network, device, wifi) ==
1027                                                                         FALSE)
1028                         break;
1029
1030                 /* reset scan trigger and schedule background scan */
1031                 connman_device_schedule_scan(device);
1032
1033                 connman_network_set_connected(network, TRUE);
1034                 break;
1035
1036         case G_SUPPLICANT_STATE_DISCONNECTED:
1037                 /*
1038                  * If we're in one of the idle modes, we have
1039                  * not started association yet and thus setting
1040                  * those ones to FALSE could cancel an association
1041                  * in progress.
1042                  */
1043                 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1044                 if (wps == TRUE)
1045                         if (is_idle_wps(interface, wifi) == TRUE)
1046                                 break;
1047
1048                 if (is_idle(wifi))
1049                         break;
1050
1051                 /* If previous state was 4way-handshake, then
1052                  * it's either: psk was incorrect and thus we retry
1053                  * or if we reach the maximum retries we declare the
1054                  * psk as wrong */
1055                 if (handle_4way_handshake_failure(interface,
1056                                                 network, wifi) == TRUE)
1057                         break;
1058
1059                 /* We disable the selected network, if not then
1060                  * wpa_supplicant will loop retrying */
1061                 if (g_supplicant_interface_enable_selected_network(interface,
1062                                                 FALSE) != 0)
1063                         DBG("Could not disables selected network");
1064
1065                 connman_network_set_associating(network, FALSE);
1066                 connman_network_set_connected(network, FALSE);
1067                 break;
1068
1069         case G_SUPPLICANT_STATE_INACTIVE:
1070                 connman_network_set_associating(network, FALSE);
1071                 break;
1072
1073         case G_SUPPLICANT_STATE_UNKNOWN:
1074         case G_SUPPLICANT_STATE_ASSOCIATED:
1075         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1076         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1077                 break;
1078         }
1079
1080         wifi->state = state;
1081
1082         DBG("DONE");
1083 }
1084
1085 static void interface_removed(GSupplicantInterface *interface)
1086 {
1087         const char *ifname = g_supplicant_interface_get_ifname(interface);
1088         struct wifi_data *wifi;
1089
1090         DBG("ifname %s", ifname);
1091
1092         wifi = g_supplicant_interface_get_data(interface);
1093
1094         if (wifi != NULL && wifi->tethering == TRUE)
1095                 return;
1096
1097         if (wifi == NULL || wifi->device == NULL) {
1098                 connman_error("Wrong wifi pointer");
1099                 return;
1100         }
1101
1102         connman_device_set_powered(wifi->device, FALSE);
1103 }
1104
1105 static void scan_started(GSupplicantInterface *interface)
1106 {
1107         DBG("");
1108 }
1109
1110 static void scan_finished(GSupplicantInterface *interface)
1111 {
1112         DBG("");
1113 }
1114
1115 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1116 {
1117         unsigned char strength;
1118
1119         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1120         if (strength > 100)
1121                 strength = 100;
1122
1123         return strength;
1124 }
1125
1126 static void network_added(GSupplicantNetwork *supplicant_network)
1127 {
1128         struct connman_network *network;
1129         GSupplicantInterface *interface;
1130         struct wifi_data *wifi;
1131         const char *name, *identifier, *security, *group;
1132         const unsigned char *ssid;
1133         unsigned int ssid_len;
1134         connman_bool_t wps;
1135
1136         DBG("");
1137
1138         interface = g_supplicant_network_get_interface(supplicant_network);
1139         wifi = g_supplicant_interface_get_data(interface);
1140         name = g_supplicant_network_get_name(supplicant_network);
1141         identifier = g_supplicant_network_get_identifier(supplicant_network);
1142         security = g_supplicant_network_get_security(supplicant_network);
1143         group = g_supplicant_network_get_identifier(supplicant_network);
1144         wps = g_supplicant_network_get_wps(supplicant_network);
1145
1146         if (wifi == NULL)
1147                 return;
1148
1149         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1150
1151         network = connman_device_get_network(wifi->device, identifier);
1152
1153         if (network == NULL) {
1154                 network = connman_network_create(identifier,
1155                                                 CONNMAN_NETWORK_TYPE_WIFI);
1156                 if (network == NULL)
1157                         return;
1158
1159                 connman_network_set_index(network, wifi->index);
1160
1161                 if (connman_device_add_network(wifi->device, network) < 0) {
1162                         connman_network_unref(network);
1163                         return;
1164                 }
1165
1166                 wifi->networks = g_slist_append(wifi->networks, network);
1167         }
1168
1169         if (name != NULL && name[0] != '\0')
1170                 connman_network_set_name(network, name);
1171
1172         connman_network_set_blob(network, "WiFi.SSID",
1173                                                 ssid, ssid_len);
1174         connman_network_set_string(network, "WiFi.Security", security);
1175         connman_network_set_strength(network,
1176                                 calculate_strength(supplicant_network));
1177         connman_network_set_bool(network, "WiFi.WPS", wps);
1178
1179         connman_network_set_frequency(network,
1180                         g_supplicant_network_get_frequency(supplicant_network));
1181
1182         connman_network_set_available(network, TRUE);
1183
1184         if (ssid != NULL)
1185                 connman_network_set_group(network, group);
1186
1187         if (wifi->hidden != NULL) {
1188                 if (wifi->hidden->ssid_len == ssid_len &&
1189                                 memcmp(wifi->hidden->ssid, ssid,
1190                                                 ssid_len) == 0) {
1191                         connman_network_connect_hidden(network,
1192                                         wifi->hidden->identity,
1193                                         wifi->hidden->passphrase);
1194                         hidden_free(wifi->hidden);
1195                         wifi->hidden = NULL;
1196                 }
1197         }
1198 }
1199
1200 static void network_removed(GSupplicantNetwork *network)
1201 {
1202         GSupplicantInterface *interface;
1203         struct wifi_data *wifi;
1204         const char *name, *identifier;
1205         struct connman_network *connman_network;
1206
1207         interface = g_supplicant_network_get_interface(network);
1208         wifi = g_supplicant_interface_get_data(interface);
1209         identifier = g_supplicant_network_get_identifier(network);
1210         name = g_supplicant_network_get_name(network);
1211
1212         DBG("name %s", name);
1213
1214         if (wifi == NULL)
1215                 return;
1216
1217         connman_network = connman_device_get_network(wifi->device, identifier);
1218         if (connman_network == NULL)
1219                 return;
1220
1221         wifi->networks = g_slist_remove(wifi->networks, connman_network);
1222
1223         connman_device_remove_network(wifi->device, connman_network);
1224         connman_network_unref(connman_network);
1225 }
1226
1227 static void network_changed(GSupplicantNetwork *network, const char *property)
1228 {
1229         GSupplicantInterface *interface;
1230         struct wifi_data *wifi;
1231         const char *name, *identifier;
1232         struct connman_network *connman_network;
1233
1234         interface = g_supplicant_network_get_interface(network);
1235         wifi = g_supplicant_interface_get_data(interface);
1236         identifier = g_supplicant_network_get_identifier(network);
1237         name = g_supplicant_network_get_name(network);
1238
1239         DBG("name %s", name);
1240
1241         if (wifi == NULL)
1242                 return;
1243
1244         connman_network = connman_device_get_network(wifi->device, identifier);
1245         if (connman_network == NULL)
1246                 return;
1247
1248         if (g_str_equal(property, "Signal") == TRUE) {
1249                connman_network_set_strength(connman_network,
1250                                         calculate_strength(network));
1251                connman_network_update(connman_network);
1252         }
1253 }
1254
1255 static void debug(const char *str)
1256 {
1257         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1258                 connman_debug("%s", str);
1259 }
1260
1261 static const GSupplicantCallbacks callbacks = {
1262         .system_ready           = system_ready,
1263         .system_killed          = system_killed,
1264         .interface_added        = interface_added,
1265         .interface_state        = interface_state,
1266         .interface_removed      = interface_removed,
1267         .scan_started           = scan_started,
1268         .scan_finished          = scan_finished,
1269         .network_added          = network_added,
1270         .network_removed        = network_removed,
1271         .network_changed        = network_changed,
1272         .debug                  = debug,
1273 };
1274
1275
1276 static int tech_probe(struct connman_technology *technology)
1277 {
1278         wifi_technology = technology;
1279
1280         return 0;
1281 }
1282
1283 static void tech_remove(struct connman_technology *technology)
1284 {
1285         wifi_technology = NULL;
1286 }
1287
1288 struct wifi_tethering_info {
1289         struct wifi_data *wifi;
1290         struct connman_technology *technology;
1291         char *ifname;
1292         GSupplicantSSID *ssid;
1293 };
1294
1295 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1296 {
1297         GSupplicantSSID *ap;
1298
1299         ap = g_try_malloc0(sizeof(GSupplicantSSID));
1300         if (ap == NULL)
1301                 return NULL;
1302
1303         ap->mode = G_SUPPLICANT_MODE_MASTER;
1304         ap->ssid = ssid;
1305         ap->ssid_len = strlen(ssid);
1306         ap->scan_ssid = 0;
1307         ap->freq = 2412;
1308
1309         if (passphrase == NULL || strlen(passphrase) == 0) {
1310                 ap->security = G_SUPPLICANT_SECURITY_NONE;
1311                 ap->passphrase = NULL;
1312         } else {
1313                ap->security = G_SUPPLICANT_SECURITY_PSK;
1314                ap->protocol = G_SUPPLICANT_PROTO_RSN;
1315                ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1316                ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1317                ap->passphrase = passphrase;
1318         }
1319
1320         return ap;
1321 }
1322
1323 static void ap_start_callback(int result, GSupplicantInterface *interface,
1324                                                         void *user_data)
1325 {
1326         struct wifi_tethering_info *info = user_data;
1327
1328         DBG("result %d index %d bridge %s",
1329                 result, info->wifi->index, info->wifi->bridge);
1330
1331         if (result < 0) {
1332                 connman_inet_remove_from_bridge(info->wifi->index,
1333                                                         info->wifi->bridge);
1334                 connman_technology_tethering_notify(info->technology, FALSE);
1335         }
1336
1337         g_free(info->ifname);
1338         g_free(info);
1339 }
1340
1341 static void ap_create_callback(int result,
1342                                 GSupplicantInterface *interface,
1343                                         void *user_data)
1344 {
1345         struct wifi_tethering_info *info = user_data;
1346
1347         DBG("result %d ifname %s", result,
1348                                 g_supplicant_interface_get_ifname(interface));
1349
1350         if (result < 0) {
1351                 connman_inet_remove_from_bridge(info->wifi->index,
1352                                                         info->wifi->bridge);
1353                 connman_technology_tethering_notify(info->technology, FALSE);
1354
1355                 g_free(info->ifname);
1356                 g_free(info);
1357                 return;
1358         }
1359
1360         info->wifi->interface = interface;
1361         g_supplicant_interface_set_data(interface, info->wifi);
1362
1363         if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1364                 connman_error("Failed to set interface ap_scan property");
1365
1366         g_supplicant_interface_connect(interface, info->ssid,
1367                                                 ap_start_callback, info);
1368 }
1369
1370 static void sta_remove_callback(int result,
1371                                 GSupplicantInterface *interface,
1372                                         void *user_data)
1373 {
1374         struct wifi_tethering_info *info = user_data;
1375         const char *driver = connman_option_get_string("wifi");
1376
1377         DBG("ifname %s result %d ", info->ifname, result);
1378
1379         if (result < 0) {
1380                 info->wifi->tethering = TRUE;
1381
1382                 g_free(info->ifname);
1383                 g_free(info);
1384                 return;
1385         }
1386
1387         info->wifi->interface = NULL;
1388
1389         connman_technology_tethering_notify(info->technology, TRUE);
1390
1391         g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1392                                                 ap_create_callback,
1393                                                         info);
1394 }
1395
1396 static int tech_set_tethering(struct connman_technology *technology,
1397                                 const char *identifier, const char *passphrase,
1398                                 const char *bridge, connman_bool_t enabled)
1399 {
1400         GList *list;
1401         GSupplicantInterface *interface;
1402         struct wifi_data *wifi;
1403         struct wifi_tethering_info *info;
1404         const char *ifname;
1405         unsigned int mode;
1406         int err;
1407
1408         DBG("");
1409
1410         if (enabled == FALSE) {
1411                 for (list = iface_list; list; list = list->next) {
1412                         wifi = list->data;
1413
1414                         if (wifi->tethering == TRUE) {
1415                                 wifi->tethering = FALSE;
1416
1417                                 connman_inet_remove_from_bridge(wifi->index,
1418                                                                         bridge);
1419                                 wifi->bridged = FALSE;
1420                         }
1421                 }
1422
1423                 connman_technology_tethering_notify(technology, FALSE);
1424
1425                 return 0;
1426         }
1427
1428         for (list = iface_list; list; list = list->next) {
1429                 wifi = list->data;
1430
1431                 interface = wifi->interface;
1432
1433                 if (interface == NULL)
1434                         continue;
1435
1436                 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1437
1438                 mode = g_supplicant_interface_get_mode(interface);
1439                 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1440                         DBG("%s does not support AP mode", ifname);
1441                         continue;
1442                 }
1443
1444                 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1445                 if (info == NULL)
1446                         return -ENOMEM;
1447
1448                 info->wifi = wifi;
1449                 info->technology = technology;
1450                 info->wifi->bridge = bridge;
1451                 info->ssid = ssid_ap_init(identifier, passphrase);
1452                 if (info->ssid == NULL) {
1453                         g_free(info);
1454                         continue;
1455                 }
1456                 info->ifname = g_strdup(ifname);
1457                 if (info->ifname == NULL) {
1458                         g_free(info);
1459                         continue;
1460                 }
1461
1462                 info->wifi->tethering = TRUE;
1463
1464                 err = g_supplicant_interface_remove(interface,
1465                                                 sta_remove_callback,
1466                                                         info);
1467                 if (err == 0)
1468                         return err;
1469         }
1470
1471         return -EOPNOTSUPP;
1472 }
1473
1474 static void regdom_callback(void *user_data)
1475 {
1476         char *alpha2 = user_data;
1477
1478         DBG("");
1479
1480         if (wifi_technology == NULL)
1481                 return;
1482
1483         connman_technology_regdom_notify(wifi_technology, alpha2);
1484 }
1485
1486 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1487 {
1488         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1489 }
1490
1491 static struct connman_technology_driver tech_driver = {
1492         .name           = "wifi",
1493         .type           = CONNMAN_SERVICE_TYPE_WIFI,
1494         .probe          = tech_probe,
1495         .remove         = tech_remove,
1496         .set_tethering  = tech_set_tethering,
1497         .set_regdom     = tech_set_regdom,
1498 };
1499
1500 static int wifi_init(void)
1501 {
1502         int err;
1503
1504         err = connman_network_driver_register(&network_driver);
1505         if (err < 0)
1506                 return err;
1507
1508         err = g_supplicant_register(&callbacks);
1509         if (err < 0) {
1510                 connman_network_driver_unregister(&network_driver);
1511                 return err;
1512         }
1513
1514         err = connman_technology_driver_register(&tech_driver);
1515         if (err < 0) {
1516                 g_supplicant_unregister(&callbacks);
1517                 connman_network_driver_unregister(&network_driver);
1518                 return err;
1519         }
1520
1521         return 0;
1522 }
1523
1524 static void wifi_exit(void)
1525 {
1526         DBG();
1527
1528         connman_technology_driver_unregister(&tech_driver);
1529
1530         g_supplicant_unregister(&callbacks);
1531
1532         connman_network_driver_unregister(&network_driver);
1533 }
1534
1535 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1536                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)