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_powered(device, FALSE);
 200         connman_device_set_data(device, NULL);
 201         connman_device_unref(wifi->device);
 202         connman_rtnl_remove_watch(wifi->watch);
 203
 204         g_supplicant_interface_set_data(wifi->interface, NULL);
 205
 206         g_free(wifi->identifier);
 207         g_free(wifi);
 208 }
 209
 210 static void interface_create_callback(int result,
 211                                         GSupplicantInterface *interface,
 212                                                         void *user_data)
 213 {
 214         struct wifi_data *wifi = user_data;
 215
 216         DBG("result %d ifname %s, wifi %p", result,
 217                                 g_supplicant_interface_get_ifname(interface),
 218                                 wifi);
 219
 220         if (result < 0 || wifi == NULL)
 221                 return;
 222
 223         wifi->interface = interface;
 224         g_supplicant_interface_set_data(interface, wifi);
 225
 226         if (g_supplicant_interface_get_ready(interface) == FALSE)
 227                 return;
 228
 229         DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
 230
 231         if (wifi->device == NULL) {
 232                 connman_error("WiFi device not set");
 233                 return;
 234         }
 235
 236         connman_device_set_powered(wifi->device, TRUE);
 237 }
 238
 239 static void interface_remove_callback(int result,
 240                                         GSupplicantInterface *interface,
 241                                                         void *user_data)
 242 {
 243         struct wifi_data *wifi;
 244
 245         wifi = g_supplicant_interface_get_data(interface);
 246
 247         DBG("result %d wifi %p", result, wifi);
 248
 249         if (result < 0 || wifi == NULL)
 250                 return;
 251
 252         wifi->interface = NULL;
 253 }
 254
 255
 256 static int wifi_enable(struct connman_device *device)
 257 {
 258         struct wifi_data *wifi = connman_device_get_data(device);
 259         const char *interface = connman_device_get_string(device, "Interface");
 260         const char *driver = connman_option_get_string("wifi");
 261         int ret;
 262
 263         DBG("device %p %p", device, wifi);
 264
 265         ret = g_supplicant_interface_create(interface, driver, NULL,
 266                                                 interface_create_callback,
 267                                                         wifi);
 268         if (ret < 0)
 269                 return ret;
 270
 271         return -EINPROGRESS;
 272 }
 273
 274 static int wifi_disable(struct connman_device *device)
 275 {
 276         struct wifi_data *wifi = connman_device_get_data(device);
 277         int ret;
 278
 279         DBG("device %p", device);
 280
 281         wifi->connected = FALSE;
 282         wifi->disconnecting = FALSE;
 283
 284         if (wifi->pending_network != NULL)
 285                 wifi->pending_network = NULL;
 286
 287         remove_networks(device, wifi);
 288
 289         ret = g_supplicant_interface_remove(wifi->interface,
 290                                                 interface_remove_callback,
 291                                                 NULL);
 292         if (ret < 0)
 293                 return ret;
 294
 295         return -EINPROGRESS;
 296 }
 297
 298 static void hidden_free(struct hidden_params *hidden)
 299 {
 300         if (hidden == NULL)
 301                 return;
 302
 303         g_free(hidden->identity);
 304         g_free(hidden->passphrase);
 305         g_free(hidden);
 306 }
 307
 308 static void scan_callback(int result, GSupplicantInterface *interface,
 309                                                 void *user_data)
 310 {
 311         struct connman_device *device = user_data;
 312         struct wifi_data *wifi = connman_device_get_data(device);
 313
 314         DBG("result %d", result);
 315
 316         if (wifi != NULL && wifi->hidden != NULL) {
 317                 hidden_free(wifi->hidden);
 318                 wifi->hidden = NULL;
 319         }
 320
 321         if (result < 0)
 322                 connman_device_reset_scanning(device);
 323         else
 324                 connman_device_set_scanning(device, FALSE);
 325         connman_device_unref(device);
 326 }
 327
 328 static int add_scan_param(gchar *hex_ssid, int freq,
 329                         GSupplicantScanParams *scan_data,
 330                         int driver_max_scan_ssids)
 331 {
 332         unsigned int i;
 333
 334         if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
 335                 gchar *ssid;
 336                 unsigned int j = 0, hex;
 337                 size_t hex_ssid_len = strlen(hex_ssid);
 338
 339                 ssid = g_try_malloc0(hex_ssid_len / 2);
 340                 if (ssid == NULL)
 341                         return -ENOMEM;
 342
 343                 for (i = 0; i < hex_ssid_len; i += 2) {
 344                         sscanf(hex_ssid + i, "%02x", &hex);
 345                         ssid[j++] = hex;
 346                 }
 347
 348                 memcpy(scan_data->ssids[scan_data->num_ssids].ssid, ssid, j);
 349                 scan_data->ssids[scan_data->num_ssids].ssid_len = j;
 350                 scan_data->num_ssids++;
 351
 352                 g_free(ssid);
 353         }
 354
 355         /* Don't add duplicate entries */
 356         for (i = 0; i < G_SUPPLICANT_MAX_FAST_SCAN; i++) {
 357                 if (scan_data->freqs[i] == 0) {
 358                         scan_data->freqs[i] = freq;
 359                         break;
 360                 } else if (scan_data->freqs[i] == freq)
 361                         break;
 362         }
 363
 364         return 0;
 365 }
 366
 367 struct last_connected {
 368         GTimeVal modified;
 369         gchar *ssid;
 370         int freq;
 371 };
 372
 373 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
 374 {
 375         GTimeVal *aval = (GTimeVal *)a;
 376         GTimeVal *bval = (GTimeVal *)b;
 377
 378         /* Note that the sort order is descending */
 379         if (aval->tv_sec < bval->tv_sec)
 380                 return 1;
 381
 382         if (aval->tv_sec > bval->tv_sec)
 383                 return -1;
 384
 385         return 0;
 386 }
 387
 388 static void free_entry(gpointer data)
 389 {
 390         struct last_connected *entry = data;
 391
 392         g_free(entry->ssid);
 393         g_free(entry);
 394 }
 395
 396 static int get_latest_connections(int max_ssids,
 397                                 GSupplicantScanParams *scan_data)
 398 {
 399         GSequenceIter *iter;
 400         GSequence *latest_list;
 401         struct last_connected *entry;
 402         GKeyFile *keyfile;
 403         GTimeVal modified;
 404         gchar **services;
 405         gchar *str;
 406         char *ssid;
 407         int i, freq;
 408         int num_ssids = 0;
 409
 410         latest_list = g_sequence_new(free_entry);
 411         if (latest_list == NULL)
 412                 return -ENOMEM;
 413
 414         services = connman_storage_get_services();
 415         for (i = 0; services && services[i]; i++) {
 416                 if (strncmp(services[i], "wifi_", 5) != 0)
 417                         continue;
 418
 419                 keyfile = connman_storage_load_service(services[i]);
 420
 421                 str = g_key_file_get_string(keyfile,
 422                                         services[i], "Favorite", NULL);
 423                 if (str == NULL || g_strcmp0(str, "true")) {
 424                         if (str)
 425                                 g_free(str);
 426                         g_key_file_free(keyfile);
 427                         continue;
 428                 }
 429                 g_free(str);
 430
 431                 str = g_key_file_get_string(keyfile,
 432                                         services[i], "AutoConnect", NULL);
 433                 if (str == NULL || g_strcmp0(str, "true")) {
 434                         if (str)
 435                                 g_free(str);
 436                         g_key_file_free(keyfile);
 437                         continue;
 438                 }
 439                 g_free(str);
 440
 441                 str = g_key_file_get_string(keyfile,
 442                                         services[i], "Modified", NULL);
 443                 if (str != NULL) {
 444                         g_time_val_from_iso8601(str, &modified);
 445                         g_free(str);
 446                 }
 447
 448                 ssid = g_key_file_get_string(keyfile,
 449                                         services[i], "SSID", NULL);
 450
 451                 freq = g_key_file_get_integer(keyfile, services[i],
 452                                         "Frequency", NULL);
 453                 if (freq) {
 454                         entry = g_try_new(struct last_connected, 1);
 455                         if (entry == NULL) {
 456                                 g_sequence_free(latest_list);
 457                                 g_key_file_free(keyfile);
 458                                 g_free(ssid);
 459                                 return -ENOMEM;
 460                         }
 461
 462                         entry->ssid = ssid;
 463                         entry->modified = modified;
 464                         entry->freq = freq;
 465
 466                         g_sequence_insert_sorted(latest_list, entry,
 467                                                 sort_entry, NULL);
 468                         num_ssids++;
 469                 } else
 470                         g_free(ssid);
 471
 472                 g_key_file_free(keyfile);
 473         }
 474
 475         g_strfreev(services);
 476
 477         num_ssids = num_ssids > G_SUPPLICANT_MAX_FAST_SCAN ?
 478                 G_SUPPLICANT_MAX_FAST_SCAN : num_ssids;
 479
 480         iter = g_sequence_get_begin_iter(latest_list);
 481
 482         for (i = 0; i < num_ssids; i++) {
 483                 entry = g_sequence_get(iter);
 484
 485                 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
 486                                                 entry->modified.tv_sec);
 487
 488                 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
 489
 490                 iter = g_sequence_iter_next(iter);
 491         }
 492
 493         g_sequence_free(latest_list);
 494         return num_ssids;
 495 }
 496
 497 static int wifi_scan(struct connman_device *device)
 498 {
 499         struct wifi_data *wifi = connman_device_get_data(device);
 500         int ret;
 501
 502         DBG("device %p %p", device, wifi->interface);
 503
 504         if (wifi->tethering == TRUE)
 505                 return 0;
 506
 507         connman_device_ref(device);
 508         ret = g_supplicant_interface_scan(wifi->interface, NULL,
 509                                         scan_callback, device);
 510         if (ret == 0)
 511                 connman_device_set_scanning(device, TRUE);
 512         else
 513                 connman_device_unref(device);
 514
 515         return ret;
 516 }
 517
 518 static int wifi_scan_fast(struct connman_device *device)
 519 {
 520         struct wifi_data *wifi = connman_device_get_data(device);
 521         GSupplicantScanParams *scan_params = NULL;
 522         int ret;
 523         int driver_max_ssids = 0;
 524
 525         DBG("device %p %p", device, wifi->interface);
 526
 527         if (wifi->tethering == TRUE)
 528                 return 0;
 529
 530         driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
 531                                                         wifi->interface);
 532         DBG("max ssids %d", driver_max_ssids);
 533         if (driver_max_ssids == 0)
 534                 return wifi_scan(device);
 535
 536         scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
 537         if (scan_params == NULL)
 538                 return -ENOMEM;
 539
 540         ret = get_latest_connections(driver_max_ssids, scan_params);
 541         if (ret <= 0) {
 542                 g_free(scan_params);
 543                 return wifi_scan(device);
 544         }
 545
 546         connman_device_ref(device);
 547         ret = g_supplicant_interface_scan(wifi->interface, scan_params,
 548                                                 scan_callback, device);
 549         if (ret == 0)
 550                 connman_device_set_scanning(device, TRUE);
 551         else {
 552                 g_free(scan_params);
 553                 connman_device_unref(device);
 554         }
 555
 556         return ret;
 557 }
 558
 559 static int wifi_scan_hidden(struct connman_device *device,
 560                 const char *ssid, unsigned int ssid_len,
 561                 const char *identity, const char* passphrase)
 562 {
 563         struct wifi_data *wifi = connman_device_get_data(device);
 564         GSupplicantScanParams *scan_params = NULL;
 565         struct hidden_params *hidden;
 566         int ret;
 567
 568         DBG("hidden SSID %s", ssid);
 569
 570         if (wifi->tethering == TRUE || wifi->hidden != NULL)
 571                 return -EBUSY;
 572
 573         if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
 574                 return -EINVAL;
 575
 576         scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
 577         if (scan_params == NULL)
 578                 return -ENOMEM;
 579         memcpy(scan_params->ssids[0].ssid, ssid, ssid_len);
 580         scan_params->ssids[0].ssid_len = ssid_len;
 581         scan_params->num_ssids = 1;
 582
 583         hidden = g_try_new0(struct hidden_params, 1);
 584         if (hidden == NULL) {
 585                 g_free(scan_params);
 586                 return -ENOMEM;
 587         }
 588         memcpy(hidden->ssid, ssid, ssid_len);
 589         hidden->ssid_len = ssid_len;
 590         hidden->identity = g_strdup(identity);
 591         hidden->passphrase = g_strdup(passphrase);
 592         wifi->hidden = hidden;
 593
 594         connman_device_ref(device);
 595         ret = g_supplicant_interface_scan(wifi->interface, scan_params,
 596                         scan_callback, device);
 597         if (ret == 0)
 598                 connman_device_set_scanning(device, TRUE);
 599         else {
 600                 connman_device_unref(device);
 601                 g_free(scan_params);
 602                 hidden_free(wifi->hidden);
 603                 wifi->hidden = NULL;
 604         }
 605
 606         return ret;
 607 }
 608
 609 static struct connman_device_driver wifi_ng_driver = {
 610         .name           = "wifi",
 611         .type           = CONNMAN_DEVICE_TYPE_WIFI,
 612         .priority       = CONNMAN_DEVICE_PRIORITY_LOW,
 613         .probe          = wifi_probe,
 614         .remove         = wifi_remove,
 615         .enable         = wifi_enable,
 616         .disable        = wifi_disable,
 617         .scan           = wifi_scan,
 618         .scan_fast      = wifi_scan_fast,
 619         .scan_hidden    = wifi_scan_hidden,
 620 };
 621
 622 static void system_ready(void)
 623 {
 624         DBG("");
 625
 626         if (connman_device_driver_register(&wifi_ng_driver) < 0)
 627                 connman_error("Failed to register WiFi driver");
 628 }
 629
 630 static void system_killed(void)
 631 {
 632         DBG("");
 633
 634         connman_device_driver_unregister(&wifi_ng_driver);
 635 }
 636
 637 static int network_probe(struct connman_network *network)
 638 {
 639         DBG("network %p", network);
 640
 641         return 0;
 642 }
 643
 644 static void network_remove(struct connman_network *network)
 645 {
 646         struct connman_device *device = connman_network_get_device(network);
 647         struct wifi_data *wifi;
 648
 649         DBG("network %p", network);
 650
 651         wifi = connman_device_get_data(device);
 652         if (wifi == NULL)
 653                 return;
 654
 655         if (wifi->network != network)
 656                 return;
 657
 658         wifi->network = NULL;
 659 }
 660
 661 static void connect_callback(int result, GSupplicantInterface *interface,
 662                                                         void *user_data)
 663 {
 664         struct connman_network *network = user_data;
 665
 666         DBG("network %p result %d", network, result);
 667
 668         if (result == -ENOKEY) {
 669                 connman_network_set_error(network,
 670                                         CONNMAN_NETWORK_ERROR_INVALID_KEY);
 671         } else if (result < 0) {
 672                 connman_network_set_error(network,
 673                                         CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
 674         }
 675 }
 676
 677 static GSupplicantSecurity network_security(const char *security)
 678 {
 679         if (g_str_equal(security, "none") == TRUE)
 680                 return G_SUPPLICANT_SECURITY_NONE;
 681         else if (g_str_equal(security, "wep") == TRUE)
 682                 return G_SUPPLICANT_SECURITY_WEP;
 683         else if (g_str_equal(security, "psk") == TRUE)
 684                 return G_SUPPLICANT_SECURITY_PSK;
 685         else if (g_str_equal(security, "wpa") == TRUE)
 686                 return G_SUPPLICANT_SECURITY_PSK;
 687         else if (g_str_equal(security, "rsn") == TRUE)
 688                 return G_SUPPLICANT_SECURITY_PSK;
 689         else if (g_str_equal(security, "ieee8021x") == TRUE)
 690                 return G_SUPPLICANT_SECURITY_IEEE8021X;
 691
 692         return G_SUPPLICANT_SECURITY_UNKNOWN;
 693 }
 694
 695 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
 696 {
 697         const char *security, *passphrase, *agent_passphrase;
 698
 699         memset(ssid, 0, sizeof(*ssid));
 700         ssid->mode = G_SUPPLICANT_MODE_INFRA;
 701         ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
 702                                                 &ssid->ssid_len);
 703         ssid->scan_ssid = 1;
 704         security = connman_network_get_string(network, "WiFi.Security");
 705         ssid->security = network_security(security);
 706         passphrase = connman_network_get_string(network,
 707                                                 "WiFi.Passphrase");
 708         if (passphrase == NULL || strlen(passphrase) == 0) {
 709
 710                 /* Use agent provided passphrase as a fallback */
 711                 agent_passphrase = connman_network_get_string(network,
 712                                                 "WiFi.AgentPassphrase");
 713
 714                 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
 715                         ssid->passphrase = NULL;
 716                 else
 717                         ssid->passphrase = agent_passphrase;
 718         } else
 719                 ssid->passphrase = passphrase;
 720
 721         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 722
 723         /*
 724          * If our private key password is unset,
 725          * we use the supplied passphrase. That is needed
 726          * for PEAP where 2 passphrases (identity and client
 727          * cert may have to be provided.
 728          */
 729         if (connman_network_get_string(network,
 730                                         "WiFi.PrivateKeyPassphrase") == NULL)
 731                 connman_network_set_string(network,
 732                                                 "WiFi.PrivateKeyPassphrase",
 733                                                 ssid->passphrase);
 734         /* We must have an identity for both PEAP and TLS */
 735         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 736
 737         /* Use agent provided identity as a fallback */
 738         if (ssid->identity == NULL || strlen(ssid->identity) == 0)
 739                 ssid->identity = connman_network_get_string(network,
 740                                                         "WiFi.AgentIdentity");
 741
 742         ssid->ca_cert_path = connman_network_get_string(network,
 743                                                         "WiFi.CACertFile");
 744         ssid->client_cert_path = connman_network_get_string(network,
 745                                                         "WiFi.ClientCertFile");
 746         ssid->private_key_path = connman_network_get_string(network,
 747                                                         "WiFi.PrivateKeyFile");
 748         ssid->private_key_passphrase = connman_network_get_string(network,
 749                                                 "WiFi.PrivateKeyPassphrase");
 750         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 751
 752         ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
 753         ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
 754
 755 }
 756
 757 static int network_connect(struct connman_network *network)
 758 {
 759         struct connman_device *device = connman_network_get_device(network);
 760         struct wifi_data *wifi;
 761         GSupplicantInterface *interface;
 762         GSupplicantSSID *ssid;
 763
 764         DBG("network %p", network);
 765
 766         if (device == NULL)
 767                 return -ENODEV;
 768
 769         wifi = connman_device_get_data(device);
 770         if (wifi == NULL)
 771                 return -ENODEV;
 772
 773         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 774         if (ssid == NULL)
 775                 return -ENOMEM;
 776
 777         interface = wifi->interface;
 778
 779         ssid_init(ssid, network);
 780
 781         if (wifi->disconnecting == TRUE)
 782                 wifi->pending_network = network;
 783         else {
 784                 wifi->network = network;
 785                 wifi->retries = 0;
 786
 787                 return g_supplicant_interface_connect(interface, ssid,
 788                                                 connect_callback, network);
 789         }
 790
 791         return -EINPROGRESS;
 792 }
 793
 794 static void disconnect_callback(int result, GSupplicantInterface *interface,
 795                                                                 void *user_data)
 796 {
 797         struct wifi_data *wifi = user_data;
 798
 799         if (wifi->network != NULL) {
 800                 /*
 801                  * if result < 0 supplican return an error because
 802                  * the network is not current.
 803                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 804                  * failed, call connman_network_set_connected to report
 805                  * disconnect is completed.
 806                  */
 807                 if (result < 0)
 808                         connman_network_set_connected(wifi->network, FALSE);
 809         }
 810
 811         wifi->network = NULL;
 812
 813         wifi->disconnecting = FALSE;
 814
 815         if (wifi->pending_network != NULL) {
 816                 network_connect(wifi->pending_network);
 817                 wifi->pending_network = NULL;
 818         }
 819
 820 }
 821
 822 static int network_disconnect(struct connman_network *network)
 823 {
 824         struct connman_device *device = connman_network_get_device(network);
 825         struct wifi_data *wifi;
 826         int err;
 827
 828         DBG("network %p", network);
 829
 830         wifi = connman_device_get_data(device);
 831         if (wifi == NULL || wifi->interface == NULL)
 832                 return -ENODEV;
 833
 834         connman_network_set_associating(network, FALSE);
 835
 836         if (wifi->disconnecting == TRUE)
 837                 return -EALREADY;
 838
 839         wifi->disconnecting = TRUE;
 840
 841         err = g_supplicant_interface_disconnect(wifi->interface,
 842                                                 disconnect_callback, wifi);
 843         if (err < 0)
 844                 wifi->disconnecting = FALSE;
 845
 846         return err;
 847 }
 848
 849 static struct connman_network_driver network_driver = {
 850         .name           = "wifi",
 851         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 852         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 853         .probe          = network_probe,
 854         .remove         = network_remove,
 855         .connect        = network_connect,
 856         .disconnect     = network_disconnect,
 857 };
 858
 859 static void interface_added(GSupplicantInterface *interface)
 860 {
 861         const char *ifname = g_supplicant_interface_get_ifname(interface);
 862         const char *driver = g_supplicant_interface_get_driver(interface);
 863         struct wifi_data *wifi;
 864
 865         wifi = g_supplicant_interface_get_data(interface);
 866
 867         /*
 868          * We can get here with a NULL wifi pointer when
 869          * the interface added signal is sent before the
 870          * interface creation callback is called.
 871          */
 872         if (wifi == NULL)
 873                 return;
 874
 875         DBG("ifname %s driver %s wifi %p tethering %d",
 876                         ifname, driver, wifi, wifi->tethering);
 877
 878         if (wifi->device == NULL) {
 879                 connman_error("WiFi device not set");
 880                 return;
 881         }
 882
 883         connman_device_set_powered(wifi->device, TRUE);
 884
 885         if (wifi->tethering == TRUE)
 886                 return;
 887 }
 888
 889 static connman_bool_t is_idle(struct wifi_data *wifi)
 890 {
 891         DBG("state %d", wifi->state);
 892
 893         switch (wifi->state) {
 894         case G_SUPPLICANT_STATE_UNKNOWN:
 895         case G_SUPPLICANT_STATE_DISCONNECTED:
 896         case G_SUPPLICANT_STATE_INACTIVE:
 897         case G_SUPPLICANT_STATE_SCANNING:
 898                 return TRUE;
 899
 900         case G_SUPPLICANT_STATE_AUTHENTICATING:
 901         case G_SUPPLICANT_STATE_ASSOCIATING:
 902         case G_SUPPLICANT_STATE_ASSOCIATED:
 903         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 904         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 905         case G_SUPPLICANT_STATE_COMPLETED:
 906                 return FALSE;
 907         }
 908
 909         return FALSE;
 910 }
 911
 912 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
 913                                                 struct wifi_data *wifi)
 914 {
 915         /* First, let's check if WPS processing did not went wrong */
 916         if (g_supplicant_interface_get_wps_state(interface) ==
 917                 G_SUPPLICANT_WPS_STATE_FAIL)
 918                 return FALSE;
 919
 920         /* Unlike normal connection, being associated while processing wps
 921          * actually means that we are idling. */
 922         switch (wifi->state) {
 923         case G_SUPPLICANT_STATE_UNKNOWN:
 924         case G_SUPPLICANT_STATE_DISCONNECTED:
 925         case G_SUPPLICANT_STATE_INACTIVE:
 926         case G_SUPPLICANT_STATE_SCANNING:
 927         case G_SUPPLICANT_STATE_ASSOCIATED:
 928                 return TRUE;
 929         case G_SUPPLICANT_STATE_AUTHENTICATING:
 930         case G_SUPPLICANT_STATE_ASSOCIATING:
 931         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 932         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 933         case G_SUPPLICANT_STATE_COMPLETED:
 934                 return FALSE;
 935         }
 936
 937         return FALSE;
 938 }
 939
 940 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
 941                                         struct connman_network *network,
 942                                         struct connman_device *device,
 943                                         struct wifi_data *wifi)
 944 {
 945         connman_bool_t wps;
 946
 947         wps = connman_network_get_bool(network, "WiFi.UseWPS");
 948         if (wps == TRUE) {
 949                 const unsigned char *ssid, *wps_ssid;
 950                 unsigned int ssid_len, wps_ssid_len;
 951                 const char *wps_key;
 952
 953                 /* Checking if we got associated with requested
 954                  * network */
 955                 ssid = connman_network_get_blob(network, "WiFi.SSID",
 956                                                 &ssid_len);
 957
 958                 wps_ssid = g_supplicant_interface_get_wps_ssid(
 959                         interface, &wps_ssid_len);
 960
 961                 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
 962                                 memcmp(ssid, wps_ssid, ssid_len) != 0) {
 963                         connman_network_set_associating(network, FALSE);
 964                         g_supplicant_interface_disconnect(wifi->interface,
 965                                                 disconnect_callback, wifi);
 966                         return FALSE;
 967                 }
 968
 969                 wps_key = g_supplicant_interface_get_wps_key(interface);
 970                 connman_network_set_string(network, "WiFi.Passphrase",
 971                                         wps_key);
 972
 973                 connman_network_set_string(network, "WiFi.PinWPS", NULL);
 974         }
 975
 976         return TRUE;
 977 }
 978
 979 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
 980                                         struct connman_network *network,
 981                                         struct wifi_data *wifi)
 982 {
 983         if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
 984                 return FALSE;
 985
 986         wifi->retries++;
 987
 988         if (wifi->retries < MAXIMUM_RETRIES)
 989                 return TRUE;
 990
 991         connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
 992
 993         return FALSE;
 994 }
 995
 996 static void interface_state(GSupplicantInterface *interface)
 997 {
 998         struct connman_network *network;
 999         struct connman_device *device;
1000         struct wifi_data *wifi;
1001         GSupplicantState state = g_supplicant_interface_get_state(interface);
1002         connman_bool_t wps;
1003
1004         wifi = g_supplicant_interface_get_data(interface);
1005
1006         DBG("wifi %p interface state %d", wifi, state);
1007
1008         if (wifi == NULL)
1009                 return;
1010
1011         network = wifi->network;
1012         device = wifi->device;
1013
1014         if (device == NULL || network == NULL)
1015                 return;
1016
1017         switch (state) {
1018         case G_SUPPLICANT_STATE_SCANNING:
1019                 break;
1020
1021         case G_SUPPLICANT_STATE_AUTHENTICATING:
1022         case G_SUPPLICANT_STATE_ASSOCIATING:
1023                 connman_network_set_associating(network, TRUE);
1024                 break;
1025
1026         case G_SUPPLICANT_STATE_COMPLETED:
1027                 if (handle_wps_completion(interface, network, device, wifi) ==
1028                                                                         FALSE)
1029                         break;
1030
1031                 /* reset scan trigger and schedule background scan */
1032                 connman_device_schedule_scan(device);
1033
1034                 connman_network_set_connected(network, TRUE);
1035                 break;
1036
1037         case G_SUPPLICANT_STATE_DISCONNECTED:
1038                 /*
1039                  * If we're in one of the idle modes, we have
1040                  * not started association yet and thus setting
1041                  * those ones to FALSE could cancel an association
1042                  * in progress.
1043                  */
1044                 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1045                 if (wps == TRUE)
1046                         if (is_idle_wps(interface, wifi) == TRUE)
1047                                 break;
1048
1049                 if (is_idle(wifi))
1050                         break;
1051
1052                 /* If previous state was 4way-handshake, then
1053                  * it's either: psk was incorrect and thus we retry
1054                  * or if we reach the maximum retries we declare the
1055                  * psk as wrong */
1056                 if (handle_4way_handshake_failure(interface,
1057                                                 network, wifi) == TRUE)
1058                         break;
1059
1060                 /* We disable the selected network, if not then
1061                  * wpa_supplicant will loop retrying */
1062                 if (g_supplicant_interface_enable_selected_network(interface,
1063                                                 FALSE) != 0)
1064                         DBG("Could not disables selected network");
1065
1066                 connman_network_set_associating(network, FALSE);
1067                 connman_network_set_connected(network, FALSE);
1068                 break;
1069
1070         case G_SUPPLICANT_STATE_INACTIVE:
1071                 connman_network_set_associating(network, FALSE);
1072                 break;
1073
1074         case G_SUPPLICANT_STATE_UNKNOWN:
1075         case G_SUPPLICANT_STATE_ASSOCIATED:
1076         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1077         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1078                 break;
1079         }
1080
1081         wifi->state = state;
1082
1083         DBG("DONE");
1084 }
1085
1086 static void interface_removed(GSupplicantInterface *interface)
1087 {
1088         const char *ifname = g_supplicant_interface_get_ifname(interface);
1089         struct wifi_data *wifi;
1090
1091         DBG("ifname %s", ifname);
1092
1093         wifi = g_supplicant_interface_get_data(interface);
1094
1095         if (wifi != NULL && wifi->tethering == TRUE)
1096                 return;
1097
1098         if (wifi == NULL || wifi->device == NULL) {
1099                 connman_error("Wrong wifi pointer");
1100                 return;
1101         }
1102
1103         connman_device_set_powered(wifi->device, FALSE);
1104 }
1105
1106 static void scan_started(GSupplicantInterface *interface)
1107 {
1108         DBG("");
1109 }
1110
1111 static void scan_finished(GSupplicantInterface *interface)
1112 {
1113         DBG("");
1114 }
1115
1116 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1117 {
1118         unsigned char strength;
1119
1120         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1121         if (strength > 100)
1122                 strength = 100;
1123
1124         return strength;
1125 }
1126
1127 static void network_added(GSupplicantNetwork *supplicant_network)
1128 {
1129         struct connman_network *network;
1130         GSupplicantInterface *interface;
1131         struct wifi_data *wifi;
1132         const char *name, *identifier, *security, *group;
1133         const unsigned char *ssid;
1134         unsigned int ssid_len;
1135         connman_bool_t wps;
1136
1137         DBG("");
1138
1139         interface = g_supplicant_network_get_interface(supplicant_network);
1140         wifi = g_supplicant_interface_get_data(interface);
1141         name = g_supplicant_network_get_name(supplicant_network);
1142         identifier = g_supplicant_network_get_identifier(supplicant_network);
1143         security = g_supplicant_network_get_security(supplicant_network);
1144         group = g_supplicant_network_get_identifier(supplicant_network);
1145         wps = g_supplicant_network_get_wps(supplicant_network);
1146
1147         if (wifi == NULL)
1148                 return;
1149
1150         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1151
1152         network = connman_device_get_network(wifi->device, identifier);
1153
1154         if (network == NULL) {
1155                 network = connman_network_create(identifier,
1156                                                 CONNMAN_NETWORK_TYPE_WIFI);
1157                 if (network == NULL)
1158                         return;
1159
1160                 connman_network_set_index(network, wifi->index);
1161
1162                 if (connman_device_add_network(wifi->device, network) < 0) {
1163                         connman_network_unref(network);
1164                         return;
1165                 }
1166
1167                 wifi->networks = g_slist_append(wifi->networks, network);
1168         }
1169
1170         if (name != NULL && name[0] != '\0')
1171                 connman_network_set_name(network, name);
1172
1173         connman_network_set_blob(network, "WiFi.SSID",
1174                                                 ssid, ssid_len);
1175         connman_network_set_string(network, "WiFi.Security", security);
1176         connman_network_set_strength(network,
1177                                 calculate_strength(supplicant_network));
1178         connman_network_set_bool(network, "WiFi.WPS", wps);
1179
1180         connman_network_set_frequency(network,
1181                         g_supplicant_network_get_frequency(supplicant_network));
1182
1183         connman_network_set_available(network, TRUE);
1184
1185         if (ssid != NULL)
1186                 connman_network_set_group(network, group);
1187
1188         if (wifi->hidden != NULL) {
1189                 if (wifi->hidden->ssid_len == ssid_len &&
1190                                 memcmp(wifi->hidden->ssid, ssid,
1191                                                 ssid_len) == 0) {
1192                         connman_network_connect_hidden(network,
1193                                         wifi->hidden->identity,
1194                                         wifi->hidden->passphrase);
1195                         hidden_free(wifi->hidden);
1196                         wifi->hidden = NULL;
1197                 }
1198         }
1199 }
1200
1201 static void network_removed(GSupplicantNetwork *network)
1202 {
1203         GSupplicantInterface *interface;
1204         struct wifi_data *wifi;
1205         const char *name, *identifier;
1206         struct connman_network *connman_network;
1207
1208         interface = g_supplicant_network_get_interface(network);
1209         wifi = g_supplicant_interface_get_data(interface);
1210         identifier = g_supplicant_network_get_identifier(network);
1211         name = g_supplicant_network_get_name(network);
1212
1213         DBG("name %s", name);
1214
1215         if (wifi == NULL)
1216                 return;
1217
1218         connman_network = connman_device_get_network(wifi->device, identifier);
1219         if (connman_network == NULL)
1220                 return;
1221
1222         wifi->networks = g_slist_remove(wifi->networks, connman_network);
1223
1224         connman_device_remove_network(wifi->device, connman_network);
1225         connman_network_unref(connman_network);
1226 }
1227
1228 static void network_changed(GSupplicantNetwork *network, const char *property)
1229 {
1230         GSupplicantInterface *interface;
1231         struct wifi_data *wifi;
1232         const char *name, *identifier;
1233         struct connman_network *connman_network;
1234
1235         interface = g_supplicant_network_get_interface(network);
1236         wifi = g_supplicant_interface_get_data(interface);
1237         identifier = g_supplicant_network_get_identifier(network);
1238         name = g_supplicant_network_get_name(network);
1239
1240         DBG("name %s", name);
1241
1242         if (wifi == NULL)
1243                 return;
1244
1245         connman_network = connman_device_get_network(wifi->device, identifier);
1246         if (connman_network == NULL)
1247                 return;
1248
1249         if (g_str_equal(property, "Signal") == TRUE) {
1250                connman_network_set_strength(connman_network,
1251                                         calculate_strength(network));
1252                connman_network_update(connman_network);
1253         }
1254 }
1255
1256 static void debug(const char *str)
1257 {
1258         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1259                 connman_debug("%s", str);
1260 }
1261
1262 static const GSupplicantCallbacks callbacks = {
1263         .system_ready           = system_ready,
1264         .system_killed          = system_killed,
1265         .interface_added        = interface_added,
1266         .interface_state        = interface_state,
1267         .interface_removed      = interface_removed,
1268         .scan_started           = scan_started,
1269         .scan_finished          = scan_finished,
1270         .network_added          = network_added,
1271         .network_removed        = network_removed,
1272         .network_changed        = network_changed,
1273         .debug                  = debug,
1274 };
1275
1276
1277 static int tech_probe(struct connman_technology *technology)
1278 {
1279         wifi_technology = technology;
1280
1281         return 0;
1282 }
1283
1284 static void tech_remove(struct connman_technology *technology)
1285 {
1286         wifi_technology = NULL;
1287 }
1288
1289 struct wifi_tethering_info {
1290         struct wifi_data *wifi;
1291         struct connman_technology *technology;
1292         char *ifname;
1293         GSupplicantSSID *ssid;
1294 };
1295
1296 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1297 {
1298         GSupplicantSSID *ap;
1299
1300         ap = g_try_malloc0(sizeof(GSupplicantSSID));
1301         if (ap == NULL)
1302                 return NULL;
1303
1304         ap->mode = G_SUPPLICANT_MODE_MASTER;
1305         ap->ssid = ssid;
1306         ap->ssid_len = strlen(ssid);
1307         ap->scan_ssid = 0;
1308         ap->freq = 2412;
1309
1310         if (passphrase == NULL || strlen(passphrase) == 0) {
1311                 ap->security = G_SUPPLICANT_SECURITY_NONE;
1312                 ap->passphrase = NULL;
1313         } else {
1314                ap->security = G_SUPPLICANT_SECURITY_PSK;
1315                ap->protocol = G_SUPPLICANT_PROTO_RSN;
1316                ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1317                ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1318                ap->passphrase = passphrase;
1319         }
1320
1321         return ap;
1322 }
1323
1324 static void ap_start_callback(int result, GSupplicantInterface *interface,
1325                                                         void *user_data)
1326 {
1327         struct wifi_tethering_info *info = user_data;
1328
1329         DBG("result %d index %d bridge %s",
1330                 result, info->wifi->index, info->wifi->bridge);
1331
1332         if (result < 0) {
1333                 connman_inet_remove_from_bridge(info->wifi->index,
1334                                                         info->wifi->bridge);
1335                 connman_technology_tethering_notify(info->technology, FALSE);
1336         }
1337
1338         g_free(info->ifname);
1339         g_free(info);
1340 }
1341
1342 static void ap_create_callback(int result,
1343                                 GSupplicantInterface *interface,
1344                                         void *user_data)
1345 {
1346         struct wifi_tethering_info *info = user_data;
1347
1348         DBG("result %d ifname %s", result,
1349                                 g_supplicant_interface_get_ifname(interface));
1350
1351         if (result < 0) {
1352                 connman_inet_remove_from_bridge(info->wifi->index,
1353                                                         info->wifi->bridge);
1354                 connman_technology_tethering_notify(info->technology, FALSE);
1355
1356                 g_free(info->ifname);
1357                 g_free(info);
1358                 return;
1359         }
1360
1361         info->wifi->interface = interface;
1362         g_supplicant_interface_set_data(interface, info->wifi);
1363
1364         if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1365                 connman_error("Failed to set interface ap_scan property");
1366
1367         g_supplicant_interface_connect(interface, info->ssid,
1368                                                 ap_start_callback, info);
1369 }
1370
1371 static void sta_remove_callback(int result,
1372                                 GSupplicantInterface *interface,
1373                                         void *user_data)
1374 {
1375         struct wifi_tethering_info *info = user_data;
1376         const char *driver = connman_option_get_string("wifi");
1377
1378         DBG("ifname %s result %d ", info->ifname, result);
1379
1380         if (result < 0) {
1381                 info->wifi->tethering = TRUE;
1382
1383                 g_free(info->ifname);
1384                 g_free(info);
1385                 return;
1386         }
1387
1388         info->wifi->interface = NULL;
1389
1390         connman_technology_tethering_notify(info->technology, TRUE);
1391
1392         g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1393                                                 ap_create_callback,
1394                                                         info);
1395 }
1396
1397 static int tech_set_tethering(struct connman_technology *technology,
1398                                 const char *identifier, const char *passphrase,
1399                                 const char *bridge, connman_bool_t enabled)
1400 {
1401         GList *list;
1402         GSupplicantInterface *interface;
1403         struct wifi_data *wifi;
1404         struct wifi_tethering_info *info;
1405         const char *ifname;
1406         unsigned int mode;
1407         int err;
1408
1409         DBG("");
1410
1411         if (enabled == FALSE) {
1412                 for (list = iface_list; list; list = list->next) {
1413                         wifi = list->data;
1414
1415                         if (wifi->tethering == TRUE) {
1416                                 wifi->tethering = FALSE;
1417
1418                                 connman_inet_remove_from_bridge(wifi->index,
1419                                                                         bridge);
1420                                 wifi->bridged = FALSE;
1421                         }
1422                 }
1423
1424                 connman_technology_tethering_notify(technology, FALSE);
1425
1426                 return 0;
1427         }
1428
1429         for (list = iface_list; list; list = list->next) {
1430                 wifi = list->data;
1431
1432                 interface = wifi->interface;
1433
1434                 if (interface == NULL)
1435                         continue;
1436
1437                 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1438
1439                 mode = g_supplicant_interface_get_mode(interface);
1440                 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1441                         DBG("%s does not support AP mode", ifname);
1442                         continue;
1443                 }
1444
1445                 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1446                 if (info == NULL)
1447                         return -ENOMEM;
1448
1449                 info->wifi = wifi;
1450                 info->technology = technology;
1451                 info->wifi->bridge = bridge;
1452                 info->ssid = ssid_ap_init(identifier, passphrase);
1453                 if (info->ssid == NULL) {
1454                         g_free(info);
1455                         continue;
1456                 }
1457                 info->ifname = g_strdup(ifname);
1458                 if (info->ifname == NULL) {
1459                         g_free(info);
1460                         continue;
1461                 }
1462
1463                 info->wifi->tethering = TRUE;
1464
1465                 err = g_supplicant_interface_remove(interface,
1466                                                 sta_remove_callback,
1467                                                         info);
1468                 if (err == 0)
1469                         return err;
1470         }
1471
1472         return -EOPNOTSUPP;
1473 }
1474
1475 static void regdom_callback(void *user_data)
1476 {
1477         char *alpha2 = user_data;
1478
1479         DBG("");
1480
1481         if (wifi_technology == NULL)
1482                 return;
1483
1484         connman_technology_regdom_notify(wifi_technology, alpha2);
1485 }
1486
1487 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1488 {
1489         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1490 }
1491
1492 static struct connman_technology_driver tech_driver = {
1493         .name           = "wifi",
1494         .type           = CONNMAN_SERVICE_TYPE_WIFI,
1495         .probe          = tech_probe,
1496         .remove         = tech_remove,
1497         .set_tethering  = tech_set_tethering,
1498         .set_regdom     = tech_set_regdom,
1499 };
1500
1501 static int wifi_init(void)
1502 {
1503         int err;
1504
1505         err = connman_network_driver_register(&network_driver);
1506         if (err < 0)
1507                 return err;
1508
1509         err = g_supplicant_register(&callbacks);
1510         if (err < 0) {
1511                 connman_network_driver_unregister(&network_driver);
1512                 return err;
1513         }
1514
1515         err = connman_technology_driver_register(&tech_driver);
1516         if (err < 0) {
1517                 g_supplicant_unregister(&callbacks);
1518                 connman_network_driver_unregister(&network_driver);
1519                 return err;
1520         }
1521
1522         return 0;
1523 }
1524
1525 static void wifi_exit(void)
1526 {
1527         DBG();
1528
1529         connman_technology_driver_unregister(&tech_driver);
1530
1531         g_supplicant_unregister(&callbacks);
1532
1533         connman_network_driver_unregister(&network_driver);
1534 }
1535
1536 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1537                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)