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