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 <string.h>
  30 #include <sys/ioctl.h>
  31 #include <sys/socket.h>
  32 #include <linux/if_arp.h>
  33 #include <linux/wireless.h>
  34 #include <net/ethernet.h>
  35
  36 #ifndef IFF_LOWER_UP
  37 #define IFF_LOWER_UP    0x10000
  38 #endif
  39
  40 #include <dbus/dbus.h>
  41 #include <glib.h>
  42
  43 #define CONNMAN_API_SUBJECT_TO_CHANGE
  44 #include <connman/plugin.h>
  45 #include <connman/inet.h>
  46 #include <connman/device.h>
  47 #include <connman/rtnl.h>
  48 #include <connman/technology.h>
  49 #include <connman/log.h>
  50 #include <connman/option.h>
  51
  52 #include <gsupplicant/gsupplicant.h>
  53
  54 #define CLEANUP_TIMEOUT   8     /* in seconds */
  55 #define INACTIVE_TIMEOUT  12    /* in seconds */
  56
  57 struct connman_technology *wifi_technology = NULL;
  58
  59 struct wifi_data {
  60         char *identifier;
  61         struct connman_device *device;
  62         struct connman_network *network;
  63         struct connman_network *pending_network;
  64         GSupplicantInterface *interface;
  65         GSupplicantState state;
  66         connman_bool_t connected;
  67         connman_bool_t disconnecting;
  68         int index;
  69         unsigned flags;
  70         unsigned int watch;
  71 };
  72
  73 static int get_bssid(struct connman_device *device,
  74                                 unsigned char *bssid, unsigned int *bssid_len)
  75 {
  76         struct iwreq wrq;
  77         char *ifname;
  78         int ifindex;
  79         int fd, err;
  80
  81         ifindex = connman_device_get_index(device);
  82         if (ifindex < 0)
  83                 return -EINVAL;
  84
  85         ifname = connman_inet_ifname(ifindex);
  86         if (ifname == NULL)
  87                 return -EINVAL;
  88
  89         fd = socket(PF_INET, SOCK_DGRAM, 0);
  90         if (fd < 0) {
  91                 g_free(ifname);
  92                 return -EINVAL;
  93         }
  94
  95         memset(&wrq, 0, sizeof(wrq));
  96         strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
  97
  98         err = ioctl(fd, SIOCGIWAP, &wrq);
  99
 100         g_free(ifname);
 101         close(fd);
 102
 103         if (err < 0)
 104                 return -EIO;
 105
 106         memcpy(bssid, wrq.u.ap_addr.sa_data, ETH_ALEN);
 107         *bssid_len = ETH_ALEN;
 108
 109         return 0;
 110 }
 111
 112 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
 113 {
 114         struct connman_device *device = user_data;
 115         struct wifi_data *wifi = connman_device_get_data(device);
 116
 117         DBG("index %d flags %d change %d", wifi->index, flags, change);
 118
 119         if (!change)
 120                 return;
 121
 122         if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
 123                 if (flags & IFF_UP)
 124                         DBG("interface up");
 125                 else
 126                         DBG("interface down");
 127         }
 128
 129         if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 130                 if (flags & IFF_LOWER_UP)
 131                         DBG("carrier on");
 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->state = G_SUPPLICANT_STATE_INACTIVE;
 152
 153         connman_device_set_data(device, wifi);
 154         wifi->device = connman_device_ref(device);
 155
 156         wifi->index = connman_device_get_index(device);
 157         wifi->flags = 0;
 158
 159         wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
 160                                                         wifi_newlink, device);
 161
 162         return 0;
 163 }
 164
 165 static void wifi_remove(struct connman_device *device)
 166 {
 167         struct wifi_data *wifi = connman_device_get_data(device);
 168
 169         DBG("device %p", device);
 170
 171         if (wifi->pending_network != NULL) {
 172                 connman_network_unref(wifi->pending_network);
 173                 wifi->pending_network = NULL;
 174         }
 175
 176         connman_device_set_data(device, NULL);
 177         connman_device_unref(wifi->device);
 178         connman_rtnl_remove_watch(wifi->watch);
 179
 180         g_supplicant_interface_set_data(wifi->interface, NULL);
 181
 182         g_free(wifi->identifier);
 183         g_free(wifi);
 184 }
 185
 186 static void interface_create_callback(int result,
 187                                         GSupplicantInterface *interface,
 188                                                         void *user_data)
 189 {
 190         struct wifi_data *wifi = user_data;
 191
 192         DBG("result %d ifname %s", result,
 193                                 g_supplicant_interface_get_ifname(interface));
 194
 195         if (result < 0)
 196                 return;
 197
 198         wifi->interface = interface;
 199         g_supplicant_interface_set_data(interface, wifi);
 200 }
 201
 202 static void interface_remove_callback(int result,
 203                                         GSupplicantInterface *interface,
 204                                                         void *user_data)
 205 {
 206         struct wifi_data *wifi = user_data;
 207
 208         DBG("result %d", result);
 209
 210         if (result < 0)
 211                 return;
 212
 213         wifi->interface = NULL;
 214 }
 215
 216
 217 static int wifi_enable(struct connman_device *device)
 218 {
 219         struct wifi_data *wifi = connman_device_get_data(device);
 220         const char *interface = connman_device_get_string(device, "Interface");
 221         const char *driver = connman_option_get_string("wifi");
 222
 223         DBG("device %p %p", device, wifi);
 224
 225         return g_supplicant_interface_create(interface, driver,
 226                                                 interface_create_callback,
 227                                                         wifi);
 228 }
 229
 230 static int wifi_disable(struct connman_device *device)
 231 {
 232         struct wifi_data *wifi = connman_device_get_data(device);
 233
 234         DBG("device %p", device);
 235
 236         wifi->connected = FALSE;
 237         wifi->disconnecting = FALSE;
 238
 239         if (wifi->pending_network != NULL) {
 240                 connman_network_unref(wifi->pending_network);
 241                 wifi->pending_network = NULL;
 242         }
 243
 244         return g_supplicant_interface_remove(wifi->interface,
 245                                                 interface_remove_callback,
 246                                                         wifi);
 247 }
 248
 249 static void scan_callback(int result, GSupplicantInterface *interface,
 250                                                 void *user_data)
 251 {
 252         struct connman_device *device = user_data;
 253
 254         DBG("result %d", result);
 255
 256         if (result < 0)
 257                 connman_device_reset_scanning(device);
 258         else
 259                 connman_device_set_scanning(device, FALSE);
 260 }
 261
 262 static int wifi_scan(struct connman_device *device)
 263 {
 264         struct wifi_data *wifi = connman_device_get_data(device);
 265         int ret;
 266
 267         DBG("device %p %p", device, wifi->interface);
 268
 269         ret = g_supplicant_interface_scan(wifi->interface, scan_callback,
 270                                                                 device);
 271         if (ret == 0)
 272                 connman_device_set_scanning(device, TRUE);
 273
 274         return ret;
 275 }
 276
 277 static struct connman_device_driver wifi_ng_driver = {
 278         .name           = "wifi",
 279         .type           = CONNMAN_DEVICE_TYPE_WIFI,
 280         .priority       = CONNMAN_DEVICE_PRIORITY_LOW,
 281         .probe          = wifi_probe,
 282         .remove         = wifi_remove,
 283         .enable         = wifi_enable,
 284         .disable        = wifi_disable,
 285         .scan           = wifi_scan,
 286 };
 287
 288 static void system_ready(void)
 289 {
 290         DBG("");
 291
 292         if (connman_device_driver_register(&wifi_ng_driver) < 0)
 293                 connman_error("Failed to register WiFi driver");
 294 }
 295
 296 static void system_killed(void)
 297 {
 298         DBG("");
 299
 300         connman_device_driver_unregister(&wifi_ng_driver);
 301 }
 302
 303 static void interface_added(GSupplicantInterface *interface)
 304 {
 305         const char *ifname = g_supplicant_interface_get_ifname(interface);
 306         const char *driver = g_supplicant_interface_get_driver(interface);
 307         struct wifi_data *wifi;
 308
 309         wifi = g_supplicant_interface_get_data(interface);
 310
 311         /*
 312          * We can get here with a NULL wifi pointer when
 313          * the interface added signal is sent before the
 314          * interface creation callback is called.
 315          */
 316         if (wifi == NULL)
 317                 return;
 318
 319         DBG("ifname %s driver %s wifi %p", ifname, driver, wifi);
 320
 321         if (wifi->device == NULL) {
 322                 connman_error("WiFi device not set");
 323                 return;
 324         }
 325
 326         connman_device_set_powered(wifi->device, TRUE);
 327         wifi_scan(wifi->device);
 328 }
 329
 330 static connman_bool_t is_idle(struct wifi_data *wifi)
 331 {
 332         DBG("state %d", wifi->state);
 333
 334         switch (wifi->state) {
 335         case G_SUPPLICANT_STATE_UNKNOWN:
 336         case G_SUPPLICANT_STATE_DISCONNECTED:
 337         case G_SUPPLICANT_STATE_INACTIVE:
 338         case G_SUPPLICANT_STATE_SCANNING:
 339                 return TRUE;
 340
 341         case G_SUPPLICANT_STATE_AUTHENTICATING:
 342         case G_SUPPLICANT_STATE_ASSOCIATING:
 343         case G_SUPPLICANT_STATE_ASSOCIATED:
 344         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 345         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 346         case G_SUPPLICANT_STATE_COMPLETED:
 347                 return FALSE;
 348         }
 349
 350         return FALSE;
 351 }
 352
 353 static void interface_state(GSupplicantInterface *interface)
 354 {
 355         struct connman_network *network;
 356         struct connman_device *device;
 357         struct wifi_data *wifi;
 358         GSupplicantState state = g_supplicant_interface_get_state(interface);
 359         unsigned char bssid[ETH_ALEN];
 360         unsigned int bssid_len;
 361
 362         wifi = g_supplicant_interface_get_data(interface);
 363
 364         DBG("wifi %p interface state %d", wifi, state);
 365
 366         if (wifi == NULL)
 367                 return;
 368
 369         network = wifi->network;
 370         device = wifi->device;
 371
 372         if (device == NULL || network == NULL)
 373                 return;
 374
 375         switch (state) {
 376         case G_SUPPLICANT_STATE_SCANNING:
 377                 break;
 378
 379         case G_SUPPLICANT_STATE_AUTHENTICATING:
 380         case G_SUPPLICANT_STATE_ASSOCIATING:
 381                 connman_network_set_associating(network, TRUE);
 382                 break;
 383
 384         case G_SUPPLICANT_STATE_COMPLETED:
 385                 /* reset scan trigger and schedule background scan */
 386                 connman_device_schedule_scan(device);
 387
 388                 if (get_bssid(device, bssid, &bssid_len) == 0)
 389                         connman_network_set_address(network,
 390                                                         bssid, bssid_len);
 391                 connman_network_set_connected(network, TRUE);
 392                 break;
 393
 394         case G_SUPPLICANT_STATE_DISCONNECTED:
 395                 /*
 396                  * If we're in one of the idle modes, we have
 397                  * not started association yet and thus setting
 398                  * those ones to FALSE could cancel an association
 399                  * in progress.
 400                  */
 401                 if (is_idle(wifi))
 402                         break;
 403                 connman_network_set_associating(network, FALSE);
 404                 connman_network_set_connected(network, FALSE);
 405                 break;
 406
 407         case G_SUPPLICANT_STATE_INACTIVE:
 408                 connman_network_set_associating(network, FALSE);
 409                 break;
 410
 411         case G_SUPPLICANT_STATE_UNKNOWN:
 412         case G_SUPPLICANT_STATE_ASSOCIATED:
 413         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 414         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 415                 break;
 416         }
 417
 418         wifi->state = state;
 419
 420         DBG("DONE");
 421 }
 422
 423 static void interface_removed(GSupplicantInterface *interface)
 424 {
 425         const char *ifname = g_supplicant_interface_get_ifname(interface);
 426         struct wifi_data *wifi;
 427
 428         DBG("ifname %s", ifname);
 429
 430         wifi = g_supplicant_interface_get_data(interface);
 431
 432         if (wifi == NULL || wifi->device == NULL) {
 433                 connman_error("Wrong wifi pointer");
 434                 return;
 435         }
 436
 437         connman_device_set_powered(wifi->device, FALSE);
 438 }
 439
 440 static void scan_started(GSupplicantInterface *interface)
 441 {
 442         struct wifi_data *wifi;
 443
 444         DBG("");
 445
 446         wifi = g_supplicant_interface_get_data(interface);
 447
 448         if (wifi == NULL)
 449                 return;
 450 }
 451
 452 static void scan_finished(GSupplicantInterface *interface)
 453 {
 454         struct wifi_data *wifi;
 455
 456         DBG("");
 457
 458         wifi = g_supplicant_interface_get_data(interface);
 459
 460         if (wifi == NULL)
 461                 return;
 462 }
 463
 464 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
 465 {
 466         unsigned char strength;
 467
 468         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
 469         if (strength > 100)
 470                 strength = 100;
 471
 472         return strength;
 473 }
 474
 475 static void network_added(GSupplicantNetwork *supplicant_network)
 476 {
 477         struct connman_network *network;
 478         GSupplicantInterface *interface;
 479         struct wifi_data *wifi;
 480         const char *name, *identifier, *mode, *security, *group;
 481         const unsigned char *ssid;
 482         unsigned int ssid_len;
 483
 484         DBG("");
 485
 486         interface = g_supplicant_network_get_interface(supplicant_network);
 487         wifi = g_supplicant_interface_get_data(interface);
 488         name = g_supplicant_network_get_name(supplicant_network);
 489         identifier = g_supplicant_network_get_identifier(supplicant_network);
 490         mode = g_supplicant_network_get_mode(supplicant_network);
 491         security = g_supplicant_network_get_security(supplicant_network);
 492         group = g_supplicant_network_get_identifier(supplicant_network);
 493
 494         if (wifi == NULL)
 495                 return;
 496
 497         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
 498
 499         network = connman_device_get_network(wifi->device, identifier);
 500
 501         if (network == NULL) {
 502                 network = connman_network_create(identifier,
 503                                                 CONNMAN_NETWORK_TYPE_WIFI);
 504                 if (network == NULL)
 505                         return;
 506
 507                 connman_network_set_index(network, wifi->index);
 508
 509                 if (connman_device_add_network(wifi->device, network) < 0) {
 510                         connman_network_unref(network);
 511                         return;
 512                 }
 513         }
 514
 515         if (name != NULL && name[0] != '\0')
 516                 connman_network_set_name(network, name);
 517
 518         connman_network_set_blob(network, "WiFi.SSID",
 519                                                 ssid, ssid_len);
 520         connman_network_set_string(network, "WiFi.Mode", mode);
 521         connman_network_set_string(network, "WiFi.Security", security);
 522         connman_network_set_strength(network,
 523                                 calculate_strength(supplicant_network));
 524
 525         connman_network_set_available(network, TRUE);
 526
 527         if (ssid != NULL)
 528                 connman_network_set_group(network, group);
 529 }
 530
 531 static void network_removed(GSupplicantNetwork *network)
 532 {
 533         GSupplicantInterface *interface;
 534         struct wifi_data *wifi;
 535         const char *name, *identifier;
 536
 537         interface = g_supplicant_network_get_interface(network);
 538         wifi = g_supplicant_interface_get_data(interface);
 539         identifier = g_supplicant_network_get_identifier(network);
 540         name = g_supplicant_network_get_name(network);
 541
 542         DBG("name %s", name);
 543
 544         if (wifi != NULL)
 545                 connman_device_remove_network(wifi->device, identifier);
 546 }
 547
 548 static void debug(const char *str)
 549 {
 550         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
 551                 connman_debug("%s", str);
 552 }
 553
 554 static const GSupplicantCallbacks callbacks = {
 555         .system_ready           = system_ready,
 556         .system_killed          = system_killed,
 557         .interface_added        = interface_added,
 558         .interface_state        = interface_state,
 559         .interface_removed      = interface_removed,
 560         .scan_started           = scan_started,
 561         .scan_finished          = scan_finished,
 562         .network_added          = network_added,
 563         .network_removed        = network_removed,
 564         .debug                  = debug,
 565 };
 566
 567
 568 static int network_probe(struct connman_network *network)
 569 {
 570         DBG("network %p", network);
 571
 572         return 0;
 573 }
 574
 575 static void network_remove(struct connman_network *network)
 576 {
 577         DBG("network %p", network);
 578 }
 579
 580 static void connect_callback(int result, GSupplicantInterface *interface,
 581                                                         void *user_data)
 582 {
 583         connman_error("%s", __func__);
 584 }
 585
 586 static GSupplicantSecurity network_security(const char *security)
 587 {
 588         if (g_str_equal(security, "none") == TRUE)
 589                 return G_SUPPLICANT_SECURITY_NONE;
 590         else if (g_str_equal(security, "wep") == TRUE)
 591                 return G_SUPPLICANT_SECURITY_WEP;
 592         else if (g_str_equal(security, "psk") == TRUE)
 593                 return G_SUPPLICANT_SECURITY_PSK;
 594         else if (g_str_equal(security, "wpa") == TRUE)
 595                 return G_SUPPLICANT_SECURITY_PSK;
 596         else if (g_str_equal(security, "rsn") == TRUE)
 597                 return G_SUPPLICANT_SECURITY_PSK;
 598         else if (g_str_equal(security, "ieee8021x") == TRUE)
 599                 return G_SUPPLICANT_SECURITY_IEEE8021X;
 600
 601         return G_SUPPLICANT_SECURITY_UNKNOWN;
 602 }
 603
 604 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
 605 {
 606         const char *security, *passphrase;
 607
 608         memset(ssid, 0, sizeof(*ssid));
 609         ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
 610                                                 &ssid->ssid_len);
 611         security = connman_network_get_string(network, "WiFi.Security");
 612         ssid->security = network_security(security);
 613         passphrase = connman_network_get_string(network,
 614                                                 "WiFi.Passphrase");
 615         if (passphrase == NULL || strlen(passphrase) == 0)
 616                 ssid->passphrase = NULL;
 617         else
 618                 ssid->passphrase = passphrase;
 619
 620         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 621
 622         /*
 623          * If our private key password is unset,
 624          * we use the supplied passphrase. That is needed
 625          * for PEAP where 2 passphrases (identity and client
 626          * cert may have to be provided.
 627          */
 628         if (connman_network_get_string(network,
 629                                         "WiFi.PrivateKeyPassphrase") == NULL)
 630                 connman_network_set_string(network,
 631                                                 "WiFi.PrivateKeyPassphrase",
 632                                                 ssid->passphrase);
 633         /* We must have an identity for both PEAP and TLS */
 634         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 635         ssid->ca_cert_path = connman_network_get_string(network,
 636                                                         "WiFi.CACertFile");
 637         ssid->client_cert_path = connman_network_get_string(network,
 638                                                         "WiFi.ClientCertFile");
 639         ssid->private_key_path = connman_network_get_string(network,
 640                                                         "WiFi.PrivateKeyFile");
 641         ssid->private_key_passphrase = connman_network_get_string(network,
 642                                                 "WiFi.PrivateKeyPassphrase");
 643         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 644
 645 }
 646
 647 static int network_connect(struct connman_network *network)
 648 {
 649         struct connman_device *device = connman_network_get_device(network);
 650         struct wifi_data *wifi;
 651         GSupplicantInterface *interface;
 652         GSupplicantSSID *ssid;
 653
 654         DBG("network %p", network);
 655
 656         if (device == NULL)
 657                 return -ENODEV;
 658
 659         wifi = connman_device_get_data(device);
 660         if (wifi == NULL)
 661                 return -ENODEV;
 662
 663         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 664         if (ssid == NULL)
 665                 return -ENOMEM;
 666
 667         interface = wifi->interface;
 668
 669         ssid_init(ssid, network);
 670
 671         if (wifi->disconnecting == TRUE)
 672                 wifi->pending_network = connman_network_ref(network);
 673         else {
 674                 wifi->network = connman_network_ref(network);
 675
 676                 return g_supplicant_interface_connect(interface, ssid,
 677                                                 connect_callback, NULL);
 678         }
 679
 680         return -EINPROGRESS;
 681 }
 682
 683 static void disconnect_callback(int result, GSupplicantInterface *interface,
 684                                                                 void *user_data)
 685 {
 686         struct wifi_data *wifi = user_data;
 687
 688         if (wifi->network != NULL) {
 689                 /*
 690                  * if result < 0 supplican return an error because
 691                  * the network is not current.
 692                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 693                  * failed, call connman_network_set_connected to report
 694                  * disconnect is completed.
 695                  */
 696                 if (result < 0)
 697                         connman_network_set_connected(wifi->network, FALSE);
 698
 699                 connman_network_unref(wifi->network);
 700         }
 701
 702         wifi->network = NULL;
 703
 704         wifi->disconnecting = FALSE;
 705
 706         if (wifi->pending_network != NULL) {
 707                 network_connect(wifi->pending_network);
 708                 connman_network_unref(wifi->pending_network);
 709                 wifi->pending_network = NULL;
 710         }
 711
 712 }
 713
 714 static int network_disconnect(struct connman_network *network)
 715 {
 716         struct connman_device *device = connman_network_get_device(network);
 717         struct wifi_data *wifi;
 718         int err;
 719
 720         DBG("network %p", network);
 721
 722         wifi = connman_device_get_data(device);
 723         if (wifi == NULL || wifi->interface == NULL)
 724                 return -ENODEV;
 725
 726         connman_network_set_associating(network, FALSE);
 727
 728         if (wifi->disconnecting == TRUE)
 729                 return -EALREADY;
 730
 731         wifi->disconnecting = TRUE;
 732
 733         err = g_supplicant_interface_disconnect(wifi->interface,
 734                                                 disconnect_callback, wifi);
 735         if (err < 0)
 736                 wifi->disconnecting = FALSE;
 737
 738         return err;
 739 }
 740
 741 static struct connman_network_driver network_driver = {
 742         .name           = "wifi",
 743         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 744         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 745         .probe          = network_probe,
 746         .remove         = network_remove,
 747         .connect        = network_connect,
 748         .disconnect     = network_disconnect,
 749 };
 750
 751 static int tech_probe(struct connman_technology *technology)
 752 {
 753         wifi_technology = technology;
 754
 755         return 0;
 756 }
 757
 758 static void tech_remove(struct connman_technology *technology)
 759 {
 760         wifi_technology = NULL;
 761 }
 762
 763 static void regdom_callback(void *user_data)
 764 {
 765         char *alpha2 = user_data;
 766
 767         DBG("");
 768
 769         if (wifi_technology == NULL)
 770                 return;
 771
 772         connman_technology_regdom_notify(wifi_technology, alpha2);
 773 }
 774
 775 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
 776 {
 777         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
 778 }
 779
 780 static struct connman_technology_driver tech_driver = {
 781         .name           = "wifi",
 782         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 783         .probe          = tech_probe,
 784         .remove         = tech_remove,
 785         .set_regdom     = tech_set_regdom,
 786 };
 787
 788 static int wifi_init(void)
 789 {
 790         int err;
 791
 792         err = connman_network_driver_register(&network_driver);
 793         if (err < 0)
 794                 return err;
 795
 796         err = g_supplicant_register(&callbacks);
 797         if (err < 0) {
 798                 connman_network_driver_unregister(&network_driver);
 799                 return err;
 800         }
 801
 802         err = connman_technology_driver_register(&tech_driver);
 803         if (err < 0) {
 804                 g_supplicant_unregister(&callbacks);
 805                 connman_network_driver_unregister(&network_driver);
 806                 return err;
 807         }
 808
 809         return 0;
 810 }
 811
 812 static void wifi_exit(void)
 813 {
 814         DBG();
 815
 816         connman_technology_driver_unregister(&tech_driver);
 817
 818         g_supplicant_unregister(&callbacks);
 819
 820         connman_network_driver_unregister(&network_driver);
 821 }
 822
 823 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
 824                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)