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 int network_probe(struct connman_network *network)
 304 {
 305         DBG("network %p", network);
 306
 307         return 0;
 308 }
 309
 310 static void network_remove(struct connman_network *network)
 311 {
 312         DBG("network %p", network);
 313 }
 314
 315 static void connect_callback(int result, GSupplicantInterface *interface,
 316                                                         void *user_data)
 317 {
 318         connman_error("%s", __func__);
 319 }
 320
 321 static GSupplicantSecurity network_security(const char *security)
 322 {
 323         if (g_str_equal(security, "none") == TRUE)
 324                 return G_SUPPLICANT_SECURITY_NONE;
 325         else if (g_str_equal(security, "wep") == TRUE)
 326                 return G_SUPPLICANT_SECURITY_WEP;
 327         else if (g_str_equal(security, "psk") == TRUE)
 328                 return G_SUPPLICANT_SECURITY_PSK;
 329         else if (g_str_equal(security, "wpa") == TRUE)
 330                 return G_SUPPLICANT_SECURITY_PSK;
 331         else if (g_str_equal(security, "rsn") == TRUE)
 332                 return G_SUPPLICANT_SECURITY_PSK;
 333         else if (g_str_equal(security, "ieee8021x") == TRUE)
 334                 return G_SUPPLICANT_SECURITY_IEEE8021X;
 335
 336         return G_SUPPLICANT_SECURITY_UNKNOWN;
 337 }
 338
 339 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
 340 {
 341         const char *security, *passphrase;
 342
 343         memset(ssid, 0, sizeof(*ssid));
 344         ssid->mode = G_SUPPLICANT_MODE_INFRA;
 345         ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
 346                                                 &ssid->ssid_len);
 347         security = connman_network_get_string(network, "WiFi.Security");
 348         ssid->security = network_security(security);
 349         passphrase = connman_network_get_string(network,
 350                                                 "WiFi.Passphrase");
 351         if (passphrase == NULL || strlen(passphrase) == 0)
 352                 ssid->passphrase = NULL;
 353         else
 354                 ssid->passphrase = passphrase;
 355
 356         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 357
 358         /*
 359          * If our private key password is unset,
 360          * we use the supplied passphrase. That is needed
 361          * for PEAP where 2 passphrases (identity and client
 362          * cert may have to be provided.
 363          */
 364         if (connman_network_get_string(network,
 365                                         "WiFi.PrivateKeyPassphrase") == NULL)
 366                 connman_network_set_string(network,
 367                                                 "WiFi.PrivateKeyPassphrase",
 368                                                 ssid->passphrase);
 369         /* We must have an identity for both PEAP and TLS */
 370         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 371         ssid->ca_cert_path = connman_network_get_string(network,
 372                                                         "WiFi.CACertFile");
 373         ssid->client_cert_path = connman_network_get_string(network,
 374                                                         "WiFi.ClientCertFile");
 375         ssid->private_key_path = connman_network_get_string(network,
 376                                                         "WiFi.PrivateKeyFile");
 377         ssid->private_key_passphrase = connman_network_get_string(network,
 378                                                 "WiFi.PrivateKeyPassphrase");
 379         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 380
 381         ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
 382         ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
 383
 384 }
 385
 386 static int network_connect(struct connman_network *network)
 387 {
 388         struct connman_device *device = connman_network_get_device(network);
 389         struct wifi_data *wifi;
 390         GSupplicantInterface *interface;
 391         GSupplicantSSID *ssid;
 392
 393         DBG("network %p", network);
 394
 395         if (device == NULL)
 396                 return -ENODEV;
 397
 398         wifi = connman_device_get_data(device);
 399         if (wifi == NULL)
 400                 return -ENODEV;
 401
 402         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 403         if (ssid == NULL)
 404                 return -ENOMEM;
 405
 406         interface = wifi->interface;
 407
 408         ssid_init(ssid, network);
 409
 410         if (wifi->disconnecting == TRUE)
 411                 wifi->pending_network = connman_network_ref(network);
 412         else {
 413                 wifi->network = connman_network_ref(network);
 414
 415                 return g_supplicant_interface_connect(interface, ssid,
 416                                                 connect_callback, NULL);
 417         }
 418
 419         return -EINPROGRESS;
 420 }
 421
 422 static void disconnect_callback(int result, GSupplicantInterface *interface,
 423                                                                 void *user_data)
 424 {
 425         struct wifi_data *wifi = user_data;
 426
 427         if (wifi->network != NULL) {
 428                 /*
 429                  * if result < 0 supplican return an error because
 430                  * the network is not current.
 431                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 432                  * failed, call connman_network_set_connected to report
 433                  * disconnect is completed.
 434                  */
 435                 if (result < 0)
 436                         connman_network_set_connected(wifi->network, FALSE);
 437
 438                 connman_network_unref(wifi->network);
 439         }
 440
 441         wifi->network = NULL;
 442
 443         wifi->disconnecting = FALSE;
 444
 445         if (wifi->pending_network != NULL) {
 446                 network_connect(wifi->pending_network);
 447                 connman_network_unref(wifi->pending_network);
 448                 wifi->pending_network = NULL;
 449         }
 450
 451 }
 452
 453 static int network_disconnect(struct connman_network *network)
 454 {
 455         struct connman_device *device = connman_network_get_device(network);
 456         struct wifi_data *wifi;
 457         int err;
 458
 459         DBG("network %p", network);
 460
 461         wifi = connman_device_get_data(device);
 462         if (wifi == NULL || wifi->interface == NULL)
 463                 return -ENODEV;
 464
 465         connman_network_set_associating(network, FALSE);
 466
 467         if (wifi->disconnecting == TRUE)
 468                 return -EALREADY;
 469
 470         wifi->disconnecting = TRUE;
 471
 472         err = g_supplicant_interface_disconnect(wifi->interface,
 473                                                 disconnect_callback, wifi);
 474         if (err < 0)
 475                 wifi->disconnecting = FALSE;
 476
 477         return err;
 478 }
 479
 480 static struct connman_network_driver network_driver = {
 481         .name           = "wifi",
 482         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 483         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 484         .probe          = network_probe,
 485         .remove         = network_remove,
 486         .connect        = network_connect,
 487         .disconnect     = network_disconnect,
 488 };
 489
 490 static void interface_added(GSupplicantInterface *interface)
 491 {
 492         const char *ifname = g_supplicant_interface_get_ifname(interface);
 493         const char *driver = g_supplicant_interface_get_driver(interface);
 494         struct wifi_data *wifi;
 495
 496         wifi = g_supplicant_interface_get_data(interface);
 497
 498         /*
 499          * We can get here with a NULL wifi pointer when
 500          * the interface added signal is sent before the
 501          * interface creation callback is called.
 502          */
 503         if (wifi == NULL)
 504                 return;
 505
 506         DBG("ifname %s driver %s wifi %p", ifname, driver, wifi);
 507
 508         if (wifi->device == NULL) {
 509                 connman_error("WiFi device not set");
 510                 return;
 511         }
 512
 513         connman_device_set_powered(wifi->device, TRUE);
 514         wifi_scan(wifi->device);
 515 }
 516
 517 static connman_bool_t is_idle(struct wifi_data *wifi)
 518 {
 519         DBG("state %d", wifi->state);
 520
 521         switch (wifi->state) {
 522         case G_SUPPLICANT_STATE_UNKNOWN:
 523         case G_SUPPLICANT_STATE_DISCONNECTED:
 524         case G_SUPPLICANT_STATE_INACTIVE:
 525         case G_SUPPLICANT_STATE_SCANNING:
 526                 return TRUE;
 527
 528         case G_SUPPLICANT_STATE_AUTHENTICATING:
 529         case G_SUPPLICANT_STATE_ASSOCIATING:
 530         case G_SUPPLICANT_STATE_ASSOCIATED:
 531         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 532         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 533         case G_SUPPLICANT_STATE_COMPLETED:
 534                 return FALSE;
 535         }
 536
 537         return FALSE;
 538 }
 539
 540 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
 541                                                 struct wifi_data *wifi)
 542 {
 543         /* First, let's check if WPS processing did not went wrong */
 544         if (g_supplicant_interface_get_wps_state(interface) ==
 545                 G_SUPPLICANT_WPS_STATE_FAIL)
 546                 return FALSE;
 547
 548         /* Unlike normal connection, being associated while processing wps
 549          * actually means that we are idling. */
 550         switch (wifi->state) {
 551         case G_SUPPLICANT_STATE_UNKNOWN:
 552         case G_SUPPLICANT_STATE_DISCONNECTED:
 553         case G_SUPPLICANT_STATE_INACTIVE:
 554         case G_SUPPLICANT_STATE_SCANNING:
 555         case G_SUPPLICANT_STATE_ASSOCIATED:
 556                 return TRUE;
 557         case G_SUPPLICANT_STATE_AUTHENTICATING:
 558         case G_SUPPLICANT_STATE_ASSOCIATING:
 559         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 560         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 561         case G_SUPPLICANT_STATE_COMPLETED:
 562                 return FALSE;
 563         }
 564
 565         return FALSE;
 566 }
 567
 568 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
 569                                         struct connman_network *network,
 570                                         struct connman_device *device,
 571                                         struct wifi_data *wifi)
 572 {
 573         connman_bool_t wps;
 574
 575         wps = connman_network_get_bool(network, "WiFi.UseWPS");
 576         if (wps == TRUE) {
 577                 const unsigned char *ssid, *wps_ssid;
 578                 unsigned int ssid_len, wps_ssid_len;
 579                 const char *wps_key;
 580
 581                 /* Checking if we got associated with requested
 582                  * network */
 583                 ssid = connman_network_get_blob(network, "WiFi.SSID",
 584                                                 &ssid_len);
 585
 586                 wps_ssid = g_supplicant_interface_get_wps_ssid(
 587                         interface, &wps_ssid_len);
 588
 589                 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
 590                                 memcmp(ssid, wps_ssid, ssid_len) != 0) {
 591                         connman_network_set_associating(network, FALSE);
 592                         g_supplicant_interface_disconnect(wifi->interface,
 593                                                 disconnect_callback, wifi);
 594                         return FALSE;
 595                 }
 596
 597                 wps_key = g_supplicant_interface_get_wps_key(interface);
 598                 connman_network_set_string(network, "WiFi.Passphrase",
 599                                         wps_key);
 600
 601                 connman_network_set_string(network, "WiFi.PinWPS", NULL);
 602         }
 603
 604         return TRUE;
 605 }
 606
 607 static void interface_state(GSupplicantInterface *interface)
 608 {
 609         struct connman_network *network;
 610         struct connman_device *device;
 611         struct wifi_data *wifi;
 612         GSupplicantState state = g_supplicant_interface_get_state(interface);
 613         unsigned char bssid[ETH_ALEN];
 614         unsigned int bssid_len;
 615         connman_bool_t wps;
 616
 617         wifi = g_supplicant_interface_get_data(interface);
 618
 619         DBG("wifi %p interface state %d", wifi, state);
 620
 621         if (wifi == NULL)
 622                 return;
 623
 624         network = wifi->network;
 625         device = wifi->device;
 626
 627         if (device == NULL || network == NULL)
 628                 return;
 629
 630         switch (state) {
 631         case G_SUPPLICANT_STATE_SCANNING:
 632                 break;
 633
 634         case G_SUPPLICANT_STATE_AUTHENTICATING:
 635         case G_SUPPLICANT_STATE_ASSOCIATING:
 636                 connman_network_set_associating(network, TRUE);
 637                 break;
 638
 639         case G_SUPPLICANT_STATE_COMPLETED:
 640                 if (handle_wps_completion(interface, network, device, wifi) ==
 641                                                                         FALSE)
 642                         break;
 643
 644                 /* reset scan trigger and schedule background scan */
 645                 connman_device_schedule_scan(device);
 646
 647                 if (get_bssid(device, bssid, &bssid_len) == 0)
 648                         connman_network_set_address(network,
 649                                                         bssid, bssid_len);
 650                 connman_network_set_connected(network, TRUE);
 651                 break;
 652
 653         case G_SUPPLICANT_STATE_DISCONNECTED:
 654                 /*
 655                  * If we're in one of the idle modes, we have
 656                  * not started association yet and thus setting
 657                  * those ones to FALSE could cancel an association
 658                  * in progress.
 659                  */
 660                 wps = connman_network_get_bool(network, "WiFi.UseWPS");
 661                 if (wps == TRUE)
 662                         if (is_idle_wps(interface, wifi) == TRUE)
 663                                 break;
 664
 665                 if (is_idle(wifi))
 666                         break;
 667                 connman_network_set_associating(network, FALSE);
 668                 connman_network_set_connected(network, FALSE);
 669                 break;
 670
 671         case G_SUPPLICANT_STATE_INACTIVE:
 672                 connman_network_set_associating(network, FALSE);
 673                 break;
 674
 675         case G_SUPPLICANT_STATE_UNKNOWN:
 676         case G_SUPPLICANT_STATE_ASSOCIATED:
 677         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 678         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 679                 break;
 680         }
 681
 682         wifi->state = state;
 683
 684         DBG("DONE");
 685 }
 686
 687 static void interface_removed(GSupplicantInterface *interface)
 688 {
 689         const char *ifname = g_supplicant_interface_get_ifname(interface);
 690         struct wifi_data *wifi;
 691
 692         DBG("ifname %s", ifname);
 693
 694         wifi = g_supplicant_interface_get_data(interface);
 695
 696         if (wifi == NULL || wifi->device == NULL) {
 697                 connman_error("Wrong wifi pointer");
 698                 return;
 699         }
 700
 701         connman_device_set_powered(wifi->device, FALSE);
 702 }
 703
 704 static void scan_started(GSupplicantInterface *interface)
 705 {
 706         struct wifi_data *wifi;
 707
 708         DBG("");
 709
 710         wifi = g_supplicant_interface_get_data(interface);
 711
 712         if (wifi == NULL)
 713                 return;
 714 }
 715
 716 static void scan_finished(GSupplicantInterface *interface)
 717 {
 718         struct wifi_data *wifi;
 719
 720         DBG("");
 721
 722         wifi = g_supplicant_interface_get_data(interface);
 723
 724         if (wifi == NULL)
 725                 return;
 726 }
 727
 728 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
 729 {
 730         unsigned char strength;
 731
 732         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
 733         if (strength > 100)
 734                 strength = 100;
 735
 736         return strength;
 737 }
 738
 739 static void network_added(GSupplicantNetwork *supplicant_network)
 740 {
 741         struct connman_network *network;
 742         GSupplicantInterface *interface;
 743         struct wifi_data *wifi;
 744         const char *name, *identifier, *mode, *security, *group;
 745         const unsigned char *ssid;
 746         unsigned int ssid_len;
 747         connman_bool_t wps;
 748
 749         DBG("");
 750
 751         interface = g_supplicant_network_get_interface(supplicant_network);
 752         wifi = g_supplicant_interface_get_data(interface);
 753         name = g_supplicant_network_get_name(supplicant_network);
 754         identifier = g_supplicant_network_get_identifier(supplicant_network);
 755         mode = g_supplicant_network_get_mode(supplicant_network);
 756         security = g_supplicant_network_get_security(supplicant_network);
 757         group = g_supplicant_network_get_identifier(supplicant_network);
 758         wps = g_supplicant_network_get_wps(supplicant_network);
 759
 760         if (wifi == NULL)
 761                 return;
 762
 763         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
 764
 765         network = connman_device_get_network(wifi->device, identifier);
 766
 767         if (network == NULL) {
 768                 network = connman_network_create(identifier,
 769                                                 CONNMAN_NETWORK_TYPE_WIFI);
 770                 if (network == NULL)
 771                         return;
 772
 773                 connman_network_set_index(network, wifi->index);
 774
 775                 if (connman_device_add_network(wifi->device, network) < 0) {
 776                         connman_network_unref(network);
 777                         return;
 778                 }
 779         }
 780
 781         if (name != NULL && name[0] != '\0')
 782                 connman_network_set_name(network, name);
 783
 784         connman_network_set_blob(network, "WiFi.SSID",
 785                                                 ssid, ssid_len);
 786         connman_network_set_string(network, "WiFi.Mode", mode);
 787         connman_network_set_string(network, "WiFi.Security", security);
 788         connman_network_set_strength(network,
 789                                 calculate_strength(supplicant_network));
 790         connman_network_set_bool(network, "WiFi.WPS", wps);
 791
 792         connman_network_set_available(network, TRUE);
 793
 794         if (ssid != NULL)
 795                 connman_network_set_group(network, group);
 796 }
 797
 798 static void network_removed(GSupplicantNetwork *network)
 799 {
 800         GSupplicantInterface *interface;
 801         struct wifi_data *wifi;
 802         const char *name, *identifier;
 803
 804         interface = g_supplicant_network_get_interface(network);
 805         wifi = g_supplicant_interface_get_data(interface);
 806         identifier = g_supplicant_network_get_identifier(network);
 807         name = g_supplicant_network_get_name(network);
 808
 809         DBG("name %s", name);
 810
 811         if (wifi != NULL)
 812                 connman_device_remove_network(wifi->device, identifier);
 813 }
 814
 815 static void debug(const char *str)
 816 {
 817         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
 818                 connman_debug("%s", str);
 819 }
 820
 821 static const GSupplicantCallbacks callbacks = {
 822         .system_ready           = system_ready,
 823         .system_killed          = system_killed,
 824         .interface_added        = interface_added,
 825         .interface_state        = interface_state,
 826         .interface_removed      = interface_removed,
 827         .scan_started           = scan_started,
 828         .scan_finished          = scan_finished,
 829         .network_added          = network_added,
 830         .network_removed        = network_removed,
 831         .debug                  = debug,
 832 };
 833
 834
 835 static int tech_probe(struct connman_technology *technology)
 836 {
 837         wifi_technology = technology;
 838
 839         return 0;
 840 }
 841
 842 static void tech_remove(struct connman_technology *technology)
 843 {
 844         wifi_technology = NULL;
 845 }
 846
 847 static void regdom_callback(void *user_data)
 848 {
 849         char *alpha2 = user_data;
 850
 851         DBG("");
 852
 853         if (wifi_technology == NULL)
 854                 return;
 855
 856         connman_technology_regdom_notify(wifi_technology, alpha2);
 857 }
 858
 859 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
 860 {
 861         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
 862 }
 863
 864 static struct connman_technology_driver tech_driver = {
 865         .name           = "wifi",
 866         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 867         .probe          = tech_probe,
 868         .remove         = tech_remove,
 869         .set_regdom     = tech_set_regdom,
 870 };
 871
 872 static int wifi_init(void)
 873 {
 874         int err;
 875
 876         err = connman_network_driver_register(&network_driver);
 877         if (err < 0)
 878                 return err;
 879
 880         err = g_supplicant_register(&callbacks);
 881         if (err < 0) {
 882                 connman_network_driver_unregister(&network_driver);
 883                 return err;
 884         }
 885
 886         err = connman_technology_driver_register(&tech_driver);
 887         if (err < 0) {
 888                 g_supplicant_unregister(&callbacks);
 889                 connman_network_driver_unregister(&network_driver);
 890                 return err;
 891         }
 892
 893         return 0;
 894 }
 895
 896 static void wifi_exit(void)
 897 {
 898         DBG();
 899
 900         connman_technology_driver_unregister(&tech_driver);
 901
 902         g_supplicant_unregister(&callbacks);
 903
 904         connman_network_driver_unregister(&network_driver);
 905 }
 906
 907 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
 908                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)