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 GList *iface_list = NULL;
  74
  75 static int get_bssid(struct connman_device *device,
  76                                 unsigned char *bssid, unsigned int *bssid_len)
  77 {
  78         struct iwreq wrq;
  79         char *ifname;
  80         int ifindex;
  81         int fd, err;
  82
  83         ifindex = connman_device_get_index(device);
  84         if (ifindex < 0)
  85                 return -EINVAL;
  86
  87         ifname = connman_inet_ifname(ifindex);
  88         if (ifname == NULL)
  89                 return -EINVAL;
  90
  91         fd = socket(PF_INET, SOCK_DGRAM, 0);
  92         if (fd < 0) {
  93                 g_free(ifname);
  94                 return -EINVAL;
  95         }
  96
  97         memset(&wrq, 0, sizeof(wrq));
  98         strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
  99
 100         err = ioctl(fd, SIOCGIWAP, &wrq);
 101
 102         g_free(ifname);
 103         close(fd);
 104
 105         if (err < 0)
 106                 return -EIO;
 107
 108         memcpy(bssid, wrq.u.ap_addr.sa_data, ETH_ALEN);
 109         *bssid_len = ETH_ALEN;
 110
 111         return 0;
 112 }
 113
 114 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
 115 {
 116         struct connman_device *device = user_data;
 117         struct wifi_data *wifi = connman_device_get_data(device);
 118
 119         DBG("index %d flags %d change %d", wifi->index, flags, change);
 120
 121         if (!change)
 122                 return;
 123
 124         if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
 125                 if (flags & IFF_UP)
 126                         DBG("interface up");
 127                 else
 128                         DBG("interface down");
 129         }
 130
 131         if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 132                 if (flags & IFF_LOWER_UP)
 133                         DBG("carrier on");
 134                 else
 135                         DBG("carrier off");
 136         }
 137
 138         wifi->flags = flags;
 139 }
 140
 141 static int wifi_probe(struct connman_device *device)
 142 {
 143         struct wifi_data *wifi;
 144
 145         DBG("device %p", device);
 146
 147         wifi = g_try_new0(struct wifi_data, 1);
 148         if (wifi == NULL)
 149                 return -ENOMEM;
 150
 151         wifi->connected = FALSE;
 152         wifi->disconnecting = FALSE;
 153         wifi->state = G_SUPPLICANT_STATE_INACTIVE;
 154
 155         connman_device_set_data(device, wifi);
 156         wifi->device = connman_device_ref(device);
 157
 158         wifi->index = connman_device_get_index(device);
 159         wifi->flags = 0;
 160
 161         wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
 162                                                         wifi_newlink, device);
 163
 164         iface_list = g_list_append(iface_list, wifi);
 165
 166         return 0;
 167 }
 168
 169 static void wifi_remove(struct connman_device *device)
 170 {
 171         struct wifi_data *wifi = connman_device_get_data(device);
 172
 173         DBG("device %p", device);
 174
 175         if (wifi == NULL)
 176                 return;
 177
 178         iface_list = g_list_remove(iface_list, wifi);
 179
 180         if (wifi->pending_network != NULL) {
 181                 connman_network_unref(wifi->pending_network);
 182                 wifi->pending_network = NULL;
 183         }
 184
 185         connman_device_set_data(device, NULL);
 186         connman_device_unref(wifi->device);
 187         connman_rtnl_remove_watch(wifi->watch);
 188
 189         g_supplicant_interface_set_data(wifi->interface, NULL);
 190
 191         g_free(wifi->identifier);
 192         g_free(wifi);
 193 }
 194
 195 static void interface_create_callback(int result,
 196                                         GSupplicantInterface *interface,
 197                                                         void *user_data)
 198 {
 199         struct wifi_data *wifi = user_data;
 200
 201         DBG("result %d ifname %s", result,
 202                                 g_supplicant_interface_get_ifname(interface));
 203
 204         if (result < 0)
 205                 return;
 206
 207         wifi->interface = interface;
 208         g_supplicant_interface_set_data(interface, wifi);
 209 }
 210
 211 static void interface_remove_callback(int result,
 212                                         GSupplicantInterface *interface,
 213                                                         void *user_data)
 214 {
 215         struct wifi_data *wifi = user_data;
 216
 217         DBG("result %d", result);
 218
 219         if (result < 0)
 220                 return;
 221
 222         wifi->interface = NULL;
 223 }
 224
 225
 226 static int wifi_enable(struct connman_device *device)
 227 {
 228         struct wifi_data *wifi = connman_device_get_data(device);
 229         const char *interface = connman_device_get_string(device, "Interface");
 230         const char *driver = connman_option_get_string("wifi");
 231
 232         DBG("device %p %p", device, wifi);
 233
 234         return g_supplicant_interface_create(interface, driver,
 235                                                 interface_create_callback,
 236                                                         wifi);
 237 }
 238
 239 static int wifi_disable(struct connman_device *device)
 240 {
 241         struct wifi_data *wifi = connman_device_get_data(device);
 242
 243         DBG("device %p", device);
 244
 245         wifi->connected = FALSE;
 246         wifi->disconnecting = FALSE;
 247
 248         if (wifi->pending_network != NULL) {
 249                 connman_network_unref(wifi->pending_network);
 250                 wifi->pending_network = NULL;
 251         }
 252
 253         return g_supplicant_interface_remove(wifi->interface,
 254                                                 interface_remove_callback,
 255                                                         wifi);
 256 }
 257
 258 static void scan_callback(int result, GSupplicantInterface *interface,
 259                                                 void *user_data)
 260 {
 261         struct connman_device *device = user_data;
 262
 263         DBG("result %d", result);
 264
 265         if (result < 0)
 266                 connman_device_reset_scanning(device);
 267         else
 268                 connman_device_set_scanning(device, FALSE);
 269 }
 270
 271 static int wifi_scan(struct connman_device *device)
 272 {
 273         struct wifi_data *wifi = connman_device_get_data(device);
 274         int ret;
 275
 276         DBG("device %p %p", device, wifi->interface);
 277
 278         ret = g_supplicant_interface_scan(wifi->interface, scan_callback,
 279                                                                 device);
 280         if (ret == 0)
 281                 connman_device_set_scanning(device, TRUE);
 282
 283         return ret;
 284 }
 285
 286 static struct connman_device_driver wifi_ng_driver = {
 287         .name           = "wifi",
 288         .type           = CONNMAN_DEVICE_TYPE_WIFI,
 289         .priority       = CONNMAN_DEVICE_PRIORITY_LOW,
 290         .probe          = wifi_probe,
 291         .remove         = wifi_remove,
 292         .enable         = wifi_enable,
 293         .disable        = wifi_disable,
 294         .scan           = wifi_scan,
 295 };
 296
 297 static void system_ready(void)
 298 {
 299         DBG("");
 300
 301         if (connman_device_driver_register(&wifi_ng_driver) < 0)
 302                 connman_error("Failed to register WiFi driver");
 303 }
 304
 305 static void system_killed(void)
 306 {
 307         DBG("");
 308
 309         connman_device_driver_unregister(&wifi_ng_driver);
 310 }
 311
 312 static int network_probe(struct connman_network *network)
 313 {
 314         DBG("network %p", network);
 315
 316         return 0;
 317 }
 318
 319 static void network_remove(struct connman_network *network)
 320 {
 321         DBG("network %p", network);
 322 }
 323
 324 static void connect_callback(int result, GSupplicantInterface *interface,
 325                                                         void *user_data)
 326 {
 327         connman_error("%s", __func__);
 328 }
 329
 330 static GSupplicantSecurity network_security(const char *security)
 331 {
 332         if (g_str_equal(security, "none") == TRUE)
 333                 return G_SUPPLICANT_SECURITY_NONE;
 334         else if (g_str_equal(security, "wep") == TRUE)
 335                 return G_SUPPLICANT_SECURITY_WEP;
 336         else if (g_str_equal(security, "psk") == TRUE)
 337                 return G_SUPPLICANT_SECURITY_PSK;
 338         else if (g_str_equal(security, "wpa") == TRUE)
 339                 return G_SUPPLICANT_SECURITY_PSK;
 340         else if (g_str_equal(security, "rsn") == TRUE)
 341                 return G_SUPPLICANT_SECURITY_PSK;
 342         else if (g_str_equal(security, "ieee8021x") == TRUE)
 343                 return G_SUPPLICANT_SECURITY_IEEE8021X;
 344
 345         return G_SUPPLICANT_SECURITY_UNKNOWN;
 346 }
 347
 348 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
 349 {
 350         const char *security, *passphrase;
 351
 352         memset(ssid, 0, sizeof(*ssid));
 353         ssid->mode = G_SUPPLICANT_MODE_INFRA;
 354         ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
 355                                                 &ssid->ssid_len);
 356         ssid->scan_ssid = 1;
 357         security = connman_network_get_string(network, "WiFi.Security");
 358         ssid->security = network_security(security);
 359         passphrase = connman_network_get_string(network,
 360                                                 "WiFi.Passphrase");
 361         if (passphrase == NULL || strlen(passphrase) == 0)
 362                 ssid->passphrase = NULL;
 363         else
 364                 ssid->passphrase = passphrase;
 365
 366         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 367
 368         /*
 369          * If our private key password is unset,
 370          * we use the supplied passphrase. That is needed
 371          * for PEAP where 2 passphrases (identity and client
 372          * cert may have to be provided.
 373          */
 374         if (connman_network_get_string(network,
 375                                         "WiFi.PrivateKeyPassphrase") == NULL)
 376                 connman_network_set_string(network,
 377                                                 "WiFi.PrivateKeyPassphrase",
 378                                                 ssid->passphrase);
 379         /* We must have an identity for both PEAP and TLS */
 380         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 381         ssid->ca_cert_path = connman_network_get_string(network,
 382                                                         "WiFi.CACertFile");
 383         ssid->client_cert_path = connman_network_get_string(network,
 384                                                         "WiFi.ClientCertFile");
 385         ssid->private_key_path = connman_network_get_string(network,
 386                                                         "WiFi.PrivateKeyFile");
 387         ssid->private_key_passphrase = connman_network_get_string(network,
 388                                                 "WiFi.PrivateKeyPassphrase");
 389         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 390
 391         ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
 392         ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
 393
 394 }
 395
 396 static int network_connect(struct connman_network *network)
 397 {
 398         struct connman_device *device = connman_network_get_device(network);
 399         struct wifi_data *wifi;
 400         GSupplicantInterface *interface;
 401         GSupplicantSSID *ssid;
 402
 403         DBG("network %p", network);
 404
 405         if (device == NULL)
 406                 return -ENODEV;
 407
 408         wifi = connman_device_get_data(device);
 409         if (wifi == NULL)
 410                 return -ENODEV;
 411
 412         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 413         if (ssid == NULL)
 414                 return -ENOMEM;
 415
 416         interface = wifi->interface;
 417
 418         ssid_init(ssid, network);
 419
 420         if (wifi->disconnecting == TRUE)
 421                 wifi->pending_network = connman_network_ref(network);
 422         else {
 423                 wifi->network = connman_network_ref(network);
 424
 425                 return g_supplicant_interface_connect(interface, ssid,
 426                                                 connect_callback, NULL);
 427         }
 428
 429         return -EINPROGRESS;
 430 }
 431
 432 static void disconnect_callback(int result, GSupplicantInterface *interface,
 433                                                                 void *user_data)
 434 {
 435         struct wifi_data *wifi = user_data;
 436
 437         if (wifi->network != NULL) {
 438                 /*
 439                  * if result < 0 supplican return an error because
 440                  * the network is not current.
 441                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 442                  * failed, call connman_network_set_connected to report
 443                  * disconnect is completed.
 444                  */
 445                 if (result < 0)
 446                         connman_network_set_connected(wifi->network, FALSE);
 447
 448                 connman_network_unref(wifi->network);
 449         }
 450
 451         wifi->network = NULL;
 452
 453         wifi->disconnecting = FALSE;
 454
 455         if (wifi->pending_network != NULL) {
 456                 network_connect(wifi->pending_network);
 457                 connman_network_unref(wifi->pending_network);
 458                 wifi->pending_network = NULL;
 459         }
 460
 461 }
 462
 463 static int network_disconnect(struct connman_network *network)
 464 {
 465         struct connman_device *device = connman_network_get_device(network);
 466         struct wifi_data *wifi;
 467         int err;
 468
 469         DBG("network %p", network);
 470
 471         wifi = connman_device_get_data(device);
 472         if (wifi == NULL || wifi->interface == NULL)
 473                 return -ENODEV;
 474
 475         connman_network_set_associating(network, FALSE);
 476
 477         if (wifi->disconnecting == TRUE)
 478                 return -EALREADY;
 479
 480         wifi->disconnecting = TRUE;
 481
 482         err = g_supplicant_interface_disconnect(wifi->interface,
 483                                                 disconnect_callback, wifi);
 484         if (err < 0)
 485                 wifi->disconnecting = FALSE;
 486
 487         return err;
 488 }
 489
 490 static struct connman_network_driver network_driver = {
 491         .name           = "wifi",
 492         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 493         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 494         .probe          = network_probe,
 495         .remove         = network_remove,
 496         .connect        = network_connect,
 497         .disconnect     = network_disconnect,
 498 };
 499
 500 static void interface_added(GSupplicantInterface *interface)
 501 {
 502         const char *ifname = g_supplicant_interface_get_ifname(interface);
 503         const char *driver = g_supplicant_interface_get_driver(interface);
 504         struct wifi_data *wifi;
 505
 506         wifi = g_supplicant_interface_get_data(interface);
 507
 508         /*
 509          * We can get here with a NULL wifi pointer when
 510          * the interface added signal is sent before the
 511          * interface creation callback is called.
 512          */
 513         if (wifi == NULL)
 514                 return;
 515
 516         DBG("ifname %s driver %s wifi %p", ifname, driver, wifi);
 517
 518         if (wifi->device == NULL) {
 519                 connman_error("WiFi device not set");
 520                 return;
 521         }
 522
 523         connman_device_set_powered(wifi->device, TRUE);
 524         wifi_scan(wifi->device);
 525 }
 526
 527 static connman_bool_t is_idle(struct wifi_data *wifi)
 528 {
 529         DBG("state %d", wifi->state);
 530
 531         switch (wifi->state) {
 532         case G_SUPPLICANT_STATE_UNKNOWN:
 533         case G_SUPPLICANT_STATE_DISCONNECTED:
 534         case G_SUPPLICANT_STATE_INACTIVE:
 535         case G_SUPPLICANT_STATE_SCANNING:
 536                 return TRUE;
 537
 538         case G_SUPPLICANT_STATE_AUTHENTICATING:
 539         case G_SUPPLICANT_STATE_ASSOCIATING:
 540         case G_SUPPLICANT_STATE_ASSOCIATED:
 541         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 542         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 543         case G_SUPPLICANT_STATE_COMPLETED:
 544                 return FALSE;
 545         }
 546
 547         return FALSE;
 548 }
 549
 550 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
 551                                                 struct wifi_data *wifi)
 552 {
 553         /* First, let's check if WPS processing did not went wrong */
 554         if (g_supplicant_interface_get_wps_state(interface) ==
 555                 G_SUPPLICANT_WPS_STATE_FAIL)
 556                 return FALSE;
 557
 558         /* Unlike normal connection, being associated while processing wps
 559          * actually means that we are idling. */
 560         switch (wifi->state) {
 561         case G_SUPPLICANT_STATE_UNKNOWN:
 562         case G_SUPPLICANT_STATE_DISCONNECTED:
 563         case G_SUPPLICANT_STATE_INACTIVE:
 564         case G_SUPPLICANT_STATE_SCANNING:
 565         case G_SUPPLICANT_STATE_ASSOCIATED:
 566                 return TRUE;
 567         case G_SUPPLICANT_STATE_AUTHENTICATING:
 568         case G_SUPPLICANT_STATE_ASSOCIATING:
 569         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 570         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 571         case G_SUPPLICANT_STATE_COMPLETED:
 572                 return FALSE;
 573         }
 574
 575         return FALSE;
 576 }
 577
 578 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
 579                                         struct connman_network *network,
 580                                         struct connman_device *device,
 581                                         struct wifi_data *wifi)
 582 {
 583         connman_bool_t wps;
 584
 585         wps = connman_network_get_bool(network, "WiFi.UseWPS");
 586         if (wps == TRUE) {
 587                 const unsigned char *ssid, *wps_ssid;
 588                 unsigned int ssid_len, wps_ssid_len;
 589                 const char *wps_key;
 590
 591                 /* Checking if we got associated with requested
 592                  * network */
 593                 ssid = connman_network_get_blob(network, "WiFi.SSID",
 594                                                 &ssid_len);
 595
 596                 wps_ssid = g_supplicant_interface_get_wps_ssid(
 597                         interface, &wps_ssid_len);
 598
 599                 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
 600                                 memcmp(ssid, wps_ssid, ssid_len) != 0) {
 601                         connman_network_set_associating(network, FALSE);
 602                         g_supplicant_interface_disconnect(wifi->interface,
 603                                                 disconnect_callback, wifi);
 604                         return FALSE;
 605                 }
 606
 607                 wps_key = g_supplicant_interface_get_wps_key(interface);
 608                 connman_network_set_string(network, "WiFi.Passphrase",
 609                                         wps_key);
 610
 611                 connman_network_set_string(network, "WiFi.PinWPS", NULL);
 612         }
 613
 614         return TRUE;
 615 }
 616
 617 static void interface_state(GSupplicantInterface *interface)
 618 {
 619         struct connman_network *network;
 620         struct connman_device *device;
 621         struct wifi_data *wifi;
 622         GSupplicantState state = g_supplicant_interface_get_state(interface);
 623         unsigned char bssid[ETH_ALEN];
 624         unsigned int bssid_len;
 625         connman_bool_t wps;
 626
 627         wifi = g_supplicant_interface_get_data(interface);
 628
 629         DBG("wifi %p interface state %d", wifi, state);
 630
 631         if (wifi == NULL)
 632                 return;
 633
 634         network = wifi->network;
 635         device = wifi->device;
 636
 637         if (device == NULL || network == NULL)
 638                 return;
 639
 640         switch (state) {
 641         case G_SUPPLICANT_STATE_SCANNING:
 642                 break;
 643
 644         case G_SUPPLICANT_STATE_AUTHENTICATING:
 645         case G_SUPPLICANT_STATE_ASSOCIATING:
 646                 connman_network_set_associating(network, TRUE);
 647                 break;
 648
 649         case G_SUPPLICANT_STATE_COMPLETED:
 650                 if (handle_wps_completion(interface, network, device, wifi) ==
 651                                                                         FALSE)
 652                         break;
 653
 654                 /* reset scan trigger and schedule background scan */
 655                 connman_device_schedule_scan(device);
 656
 657                 if (get_bssid(device, bssid, &bssid_len) == 0)
 658                         connman_network_set_address(network,
 659                                                         bssid, bssid_len);
 660                 connman_network_set_connected(network, TRUE);
 661                 break;
 662
 663         case G_SUPPLICANT_STATE_DISCONNECTED:
 664                 /*
 665                  * If we're in one of the idle modes, we have
 666                  * not started association yet and thus setting
 667                  * those ones to FALSE could cancel an association
 668                  * in progress.
 669                  */
 670                 wps = connman_network_get_bool(network, "WiFi.UseWPS");
 671                 if (wps == TRUE)
 672                         if (is_idle_wps(interface, wifi) == TRUE)
 673                                 break;
 674
 675                 if (is_idle(wifi))
 676                         break;
 677                 connman_network_set_associating(network, FALSE);
 678                 connman_network_set_connected(network, FALSE);
 679                 break;
 680
 681         case G_SUPPLICANT_STATE_INACTIVE:
 682                 connman_network_set_associating(network, FALSE);
 683                 break;
 684
 685         case G_SUPPLICANT_STATE_UNKNOWN:
 686         case G_SUPPLICANT_STATE_ASSOCIATED:
 687         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 688         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 689                 break;
 690         }
 691
 692         wifi->state = state;
 693
 694         DBG("DONE");
 695 }
 696
 697 static void interface_removed(GSupplicantInterface *interface)
 698 {
 699         const char *ifname = g_supplicant_interface_get_ifname(interface);
 700         struct wifi_data *wifi;
 701
 702         DBG("ifname %s", ifname);
 703
 704         wifi = g_supplicant_interface_get_data(interface);
 705
 706         if (wifi == NULL || wifi->device == NULL) {
 707                 connman_error("Wrong wifi pointer");
 708                 return;
 709         }
 710
 711         connman_device_set_powered(wifi->device, FALSE);
 712 }
 713
 714 static void scan_started(GSupplicantInterface *interface)
 715 {
 716         struct wifi_data *wifi;
 717
 718         DBG("");
 719
 720         wifi = g_supplicant_interface_get_data(interface);
 721
 722         if (wifi == NULL)
 723                 return;
 724 }
 725
 726 static void scan_finished(GSupplicantInterface *interface)
 727 {
 728         struct wifi_data *wifi;
 729
 730         DBG("");
 731
 732         wifi = g_supplicant_interface_get_data(interface);
 733
 734         if (wifi == NULL)
 735                 return;
 736 }
 737
 738 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
 739 {
 740         unsigned char strength;
 741
 742         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
 743         if (strength > 100)
 744                 strength = 100;
 745
 746         return strength;
 747 }
 748
 749 static void network_added(GSupplicantNetwork *supplicant_network)
 750 {
 751         struct connman_network *network;
 752         GSupplicantInterface *interface;
 753         struct wifi_data *wifi;
 754         const char *name, *identifier, *mode, *security, *group;
 755         const unsigned char *ssid;
 756         unsigned int ssid_len;
 757         connman_bool_t wps;
 758
 759         DBG("");
 760
 761         interface = g_supplicant_network_get_interface(supplicant_network);
 762         wifi = g_supplicant_interface_get_data(interface);
 763         name = g_supplicant_network_get_name(supplicant_network);
 764         identifier = g_supplicant_network_get_identifier(supplicant_network);
 765         mode = g_supplicant_network_get_mode(supplicant_network);
 766         security = g_supplicant_network_get_security(supplicant_network);
 767         group = g_supplicant_network_get_identifier(supplicant_network);
 768         wps = g_supplicant_network_get_wps(supplicant_network);
 769
 770         if (wifi == NULL)
 771                 return;
 772
 773         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
 774
 775         network = connman_device_get_network(wifi->device, identifier);
 776
 777         if (network == NULL) {
 778                 network = connman_network_create(identifier,
 779                                                 CONNMAN_NETWORK_TYPE_WIFI);
 780                 if (network == NULL)
 781                         return;
 782
 783                 connman_network_set_index(network, wifi->index);
 784
 785                 if (connman_device_add_network(wifi->device, network) < 0) {
 786                         connman_network_unref(network);
 787                         return;
 788                 }
 789         }
 790
 791         if (name != NULL && name[0] != '\0')
 792                 connman_network_set_name(network, name);
 793
 794         connman_network_set_blob(network, "WiFi.SSID",
 795                                                 ssid, ssid_len);
 796         connman_network_set_string(network, "WiFi.Mode", mode);
 797         connman_network_set_string(network, "WiFi.Security", security);
 798         connman_network_set_strength(network,
 799                                 calculate_strength(supplicant_network));
 800         connman_network_set_bool(network, "WiFi.WPS", wps);
 801
 802         connman_network_set_available(network, TRUE);
 803
 804         if (ssid != NULL)
 805                 connman_network_set_group(network, group);
 806 }
 807
 808 static void network_removed(GSupplicantNetwork *network)
 809 {
 810         GSupplicantInterface *interface;
 811         struct wifi_data *wifi;
 812         const char *name, *identifier;
 813
 814         interface = g_supplicant_network_get_interface(network);
 815         wifi = g_supplicant_interface_get_data(interface);
 816         identifier = g_supplicant_network_get_identifier(network);
 817         name = g_supplicant_network_get_name(network);
 818
 819         DBG("name %s", name);
 820
 821         if (wifi != NULL)
 822                 connman_device_remove_network(wifi->device, identifier);
 823 }
 824
 825 static void debug(const char *str)
 826 {
 827         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
 828                 connman_debug("%s", str);
 829 }
 830
 831 static const GSupplicantCallbacks callbacks = {
 832         .system_ready           = system_ready,
 833         .system_killed          = system_killed,
 834         .interface_added        = interface_added,
 835         .interface_state        = interface_state,
 836         .interface_removed      = interface_removed,
 837         .scan_started           = scan_started,
 838         .scan_finished          = scan_finished,
 839         .network_added          = network_added,
 840         .network_removed        = network_removed,
 841         .debug                  = debug,
 842 };
 843
 844
 845 static int tech_probe(struct connman_technology *technology)
 846 {
 847         wifi_technology = technology;
 848
 849         return 0;
 850 }
 851
 852 static void tech_remove(struct connman_technology *technology)
 853 {
 854         wifi_technology = NULL;
 855 }
 856
 857 static void regdom_callback(void *user_data)
 858 {
 859         char *alpha2 = user_data;
 860
 861         DBG("");
 862
 863         if (wifi_technology == NULL)
 864                 return;
 865
 866         connman_technology_regdom_notify(wifi_technology, alpha2);
 867 }
 868
 869 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
 870 {
 871         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
 872 }
 873
 874 static struct connman_technology_driver tech_driver = {
 875         .name           = "wifi",
 876         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 877         .probe          = tech_probe,
 878         .remove         = tech_remove,
 879         .set_regdom     = tech_set_regdom,
 880 };
 881
 882 static int wifi_init(void)
 883 {
 884         int err;
 885
 886         err = connman_network_driver_register(&network_driver);
 887         if (err < 0)
 888                 return err;
 889
 890         err = g_supplicant_register(&callbacks);
 891         if (err < 0) {
 892                 connman_network_driver_unregister(&network_driver);
 893                 return err;
 894         }
 895
 896         err = connman_technology_driver_register(&tech_driver);
 897         if (err < 0) {
 898                 g_supplicant_unregister(&callbacks);
 899                 connman_network_driver_unregister(&network_driver);
 900                 return err;
 901         }
 902
 903         return 0;
 904 }
 905
 906 static void wifi_exit(void)
 907 {
 908         DBG();
 909
 910         connman_technology_driver_unregister(&tech_driver);
 911
 912         g_supplicant_unregister(&callbacks);
 913
 914         connman_network_driver_unregister(&network_driver);
 915 }
 916
 917 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
 918                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)