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         security = connman_network_get_string(network, "WiFi.Security");
 357         ssid->security = network_security(security);
 358         passphrase = connman_network_get_string(network,
 359                                                 "WiFi.Passphrase");
 360         if (passphrase == NULL || strlen(passphrase) == 0)
 361                 ssid->passphrase = NULL;
 362         else
 363                 ssid->passphrase = passphrase;
 364
 365         ssid->eap = connman_network_get_string(network, "WiFi.EAP");
 366
 367         /*
 368          * If our private key password is unset,
 369          * we use the supplied passphrase. That is needed
 370          * for PEAP where 2 passphrases (identity and client
 371          * cert may have to be provided.
 372          */
 373         if (connman_network_get_string(network,
 374                                         "WiFi.PrivateKeyPassphrase") == NULL)
 375                 connman_network_set_string(network,
 376                                                 "WiFi.PrivateKeyPassphrase",
 377                                                 ssid->passphrase);
 378         /* We must have an identity for both PEAP and TLS */
 379         ssid->identity = connman_network_get_string(network, "WiFi.Identity");
 380         ssid->ca_cert_path = connman_network_get_string(network,
 381                                                         "WiFi.CACertFile");
 382         ssid->client_cert_path = connman_network_get_string(network,
 383                                                         "WiFi.ClientCertFile");
 384         ssid->private_key_path = connman_network_get_string(network,
 385                                                         "WiFi.PrivateKeyFile");
 386         ssid->private_key_passphrase = connman_network_get_string(network,
 387                                                 "WiFi.PrivateKeyPassphrase");
 388         ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
 389
 390         ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
 391         ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
 392
 393 }
 394
 395 static int network_connect(struct connman_network *network)
 396 {
 397         struct connman_device *device = connman_network_get_device(network);
 398         struct wifi_data *wifi;
 399         GSupplicantInterface *interface;
 400         GSupplicantSSID *ssid;
 401
 402         DBG("network %p", network);
 403
 404         if (device == NULL)
 405                 return -ENODEV;
 406
 407         wifi = connman_device_get_data(device);
 408         if (wifi == NULL)
 409                 return -ENODEV;
 410
 411         ssid = g_try_malloc0(sizeof(GSupplicantSSID));
 412         if (ssid == NULL)
 413                 return -ENOMEM;
 414
 415         interface = wifi->interface;
 416
 417         ssid_init(ssid, network);
 418
 419         if (wifi->disconnecting == TRUE)
 420                 wifi->pending_network = connman_network_ref(network);
 421         else {
 422                 wifi->network = connman_network_ref(network);
 423
 424                 return g_supplicant_interface_connect(interface, ssid,
 425                                                 connect_callback, NULL);
 426         }
 427
 428         return -EINPROGRESS;
 429 }
 430
 431 static void disconnect_callback(int result, GSupplicantInterface *interface,
 432                                                                 void *user_data)
 433 {
 434         struct wifi_data *wifi = user_data;
 435
 436         if (wifi->network != NULL) {
 437                 /*
 438                  * if result < 0 supplican return an error because
 439                  * the network is not current.
 440                  * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
 441                  * failed, call connman_network_set_connected to report
 442                  * disconnect is completed.
 443                  */
 444                 if (result < 0)
 445                         connman_network_set_connected(wifi->network, FALSE);
 446
 447                 connman_network_unref(wifi->network);
 448         }
 449
 450         wifi->network = NULL;
 451
 452         wifi->disconnecting = FALSE;
 453
 454         if (wifi->pending_network != NULL) {
 455                 network_connect(wifi->pending_network);
 456                 connman_network_unref(wifi->pending_network);
 457                 wifi->pending_network = NULL;
 458         }
 459
 460 }
 461
 462 static int network_disconnect(struct connman_network *network)
 463 {
 464         struct connman_device *device = connman_network_get_device(network);
 465         struct wifi_data *wifi;
 466         int err;
 467
 468         DBG("network %p", network);
 469
 470         wifi = connman_device_get_data(device);
 471         if (wifi == NULL || wifi->interface == NULL)
 472                 return -ENODEV;
 473
 474         connman_network_set_associating(network, FALSE);
 475
 476         if (wifi->disconnecting == TRUE)
 477                 return -EALREADY;
 478
 479         wifi->disconnecting = TRUE;
 480
 481         err = g_supplicant_interface_disconnect(wifi->interface,
 482                                                 disconnect_callback, wifi);
 483         if (err < 0)
 484                 wifi->disconnecting = FALSE;
 485
 486         return err;
 487 }
 488
 489 static struct connman_network_driver network_driver = {
 490         .name           = "wifi",
 491         .type           = CONNMAN_NETWORK_TYPE_WIFI,
 492         .priority       = CONNMAN_NETWORK_PRIORITY_LOW,
 493         .probe          = network_probe,
 494         .remove         = network_remove,
 495         .connect        = network_connect,
 496         .disconnect     = network_disconnect,
 497 };
 498
 499 static void interface_added(GSupplicantInterface *interface)
 500 {
 501         const char *ifname = g_supplicant_interface_get_ifname(interface);
 502         const char *driver = g_supplicant_interface_get_driver(interface);
 503         struct wifi_data *wifi;
 504
 505         wifi = g_supplicant_interface_get_data(interface);
 506
 507         /*
 508          * We can get here with a NULL wifi pointer when
 509          * the interface added signal is sent before the
 510          * interface creation callback is called.
 511          */
 512         if (wifi == NULL)
 513                 return;
 514
 515         DBG("ifname %s driver %s wifi %p", ifname, driver, wifi);
 516
 517         if (wifi->device == NULL) {
 518                 connman_error("WiFi device not set");
 519                 return;
 520         }
 521
 522         connman_device_set_powered(wifi->device, TRUE);
 523         wifi_scan(wifi->device);
 524 }
 525
 526 static connman_bool_t is_idle(struct wifi_data *wifi)
 527 {
 528         DBG("state %d", wifi->state);
 529
 530         switch (wifi->state) {
 531         case G_SUPPLICANT_STATE_UNKNOWN:
 532         case G_SUPPLICANT_STATE_DISCONNECTED:
 533         case G_SUPPLICANT_STATE_INACTIVE:
 534         case G_SUPPLICANT_STATE_SCANNING:
 535                 return TRUE;
 536
 537         case G_SUPPLICANT_STATE_AUTHENTICATING:
 538         case G_SUPPLICANT_STATE_ASSOCIATING:
 539         case G_SUPPLICANT_STATE_ASSOCIATED:
 540         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 541         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 542         case G_SUPPLICANT_STATE_COMPLETED:
 543                 return FALSE;
 544         }
 545
 546         return FALSE;
 547 }
 548
 549 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
 550                                                 struct wifi_data *wifi)
 551 {
 552         /* First, let's check if WPS processing did not went wrong */
 553         if (g_supplicant_interface_get_wps_state(interface) ==
 554                 G_SUPPLICANT_WPS_STATE_FAIL)
 555                 return FALSE;
 556
 557         /* Unlike normal connection, being associated while processing wps
 558          * actually means that we are idling. */
 559         switch (wifi->state) {
 560         case G_SUPPLICANT_STATE_UNKNOWN:
 561         case G_SUPPLICANT_STATE_DISCONNECTED:
 562         case G_SUPPLICANT_STATE_INACTIVE:
 563         case G_SUPPLICANT_STATE_SCANNING:
 564         case G_SUPPLICANT_STATE_ASSOCIATED:
 565                 return TRUE;
 566         case G_SUPPLICANT_STATE_AUTHENTICATING:
 567         case G_SUPPLICANT_STATE_ASSOCIATING:
 568         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 569         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 570         case G_SUPPLICANT_STATE_COMPLETED:
 571                 return FALSE;
 572         }
 573
 574         return FALSE;
 575 }
 576
 577 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
 578                                         struct connman_network *network,
 579                                         struct connman_device *device,
 580                                         struct wifi_data *wifi)
 581 {
 582         connman_bool_t wps;
 583
 584         wps = connman_network_get_bool(network, "WiFi.UseWPS");
 585         if (wps == TRUE) {
 586                 const unsigned char *ssid, *wps_ssid;
 587                 unsigned int ssid_len, wps_ssid_len;
 588                 const char *wps_key;
 589
 590                 /* Checking if we got associated with requested
 591                  * network */
 592                 ssid = connman_network_get_blob(network, "WiFi.SSID",
 593                                                 &ssid_len);
 594
 595                 wps_ssid = g_supplicant_interface_get_wps_ssid(
 596                         interface, &wps_ssid_len);
 597
 598                 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
 599                                 memcmp(ssid, wps_ssid, ssid_len) != 0) {
 600                         connman_network_set_associating(network, FALSE);
 601                         g_supplicant_interface_disconnect(wifi->interface,
 602                                                 disconnect_callback, wifi);
 603                         return FALSE;
 604                 }
 605
 606                 wps_key = g_supplicant_interface_get_wps_key(interface);
 607                 connman_network_set_string(network, "WiFi.Passphrase",
 608                                         wps_key);
 609
 610                 connman_network_set_string(network, "WiFi.PinWPS", NULL);
 611         }
 612
 613         return TRUE;
 614 }
 615
 616 static void interface_state(GSupplicantInterface *interface)
 617 {
 618         struct connman_network *network;
 619         struct connman_device *device;
 620         struct wifi_data *wifi;
 621         GSupplicantState state = g_supplicant_interface_get_state(interface);
 622         unsigned char bssid[ETH_ALEN];
 623         unsigned int bssid_len;
 624         connman_bool_t wps;
 625
 626         wifi = g_supplicant_interface_get_data(interface);
 627
 628         DBG("wifi %p interface state %d", wifi, state);
 629
 630         if (wifi == NULL)
 631                 return;
 632
 633         network = wifi->network;
 634         device = wifi->device;
 635
 636         if (device == NULL || network == NULL)
 637                 return;
 638
 639         switch (state) {
 640         case G_SUPPLICANT_STATE_SCANNING:
 641                 break;
 642
 643         case G_SUPPLICANT_STATE_AUTHENTICATING:
 644         case G_SUPPLICANT_STATE_ASSOCIATING:
 645                 connman_network_set_associating(network, TRUE);
 646                 break;
 647
 648         case G_SUPPLICANT_STATE_COMPLETED:
 649                 if (handle_wps_completion(interface, network, device, wifi) ==
 650                                                                         FALSE)
 651                         break;
 652
 653                 /* reset scan trigger and schedule background scan */
 654                 connman_device_schedule_scan(device);
 655
 656                 if (get_bssid(device, bssid, &bssid_len) == 0)
 657                         connman_network_set_address(network,
 658                                                         bssid, bssid_len);
 659                 connman_network_set_connected(network, TRUE);
 660                 break;
 661
 662         case G_SUPPLICANT_STATE_DISCONNECTED:
 663                 /*
 664                  * If we're in one of the idle modes, we have
 665                  * not started association yet and thus setting
 666                  * those ones to FALSE could cancel an association
 667                  * in progress.
 668                  */
 669                 wps = connman_network_get_bool(network, "WiFi.UseWPS");
 670                 if (wps == TRUE)
 671                         if (is_idle_wps(interface, wifi) == TRUE)
 672                                 break;
 673
 674                 if (is_idle(wifi))
 675                         break;
 676                 connman_network_set_associating(network, FALSE);
 677                 connman_network_set_connected(network, FALSE);
 678                 break;
 679
 680         case G_SUPPLICANT_STATE_INACTIVE:
 681                 connman_network_set_associating(network, FALSE);
 682                 break;
 683
 684         case G_SUPPLICANT_STATE_UNKNOWN:
 685         case G_SUPPLICANT_STATE_ASSOCIATED:
 686         case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
 687         case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
 688                 break;
 689         }
 690
 691         wifi->state = state;
 692
 693         DBG("DONE");
 694 }
 695
 696 static void interface_removed(GSupplicantInterface *interface)
 697 {
 698         const char *ifname = g_supplicant_interface_get_ifname(interface);
 699         struct wifi_data *wifi;
 700
 701         DBG("ifname %s", ifname);
 702
 703         wifi = g_supplicant_interface_get_data(interface);
 704
 705         if (wifi == NULL || wifi->device == NULL) {
 706                 connman_error("Wrong wifi pointer");
 707                 return;
 708         }
 709
 710         connman_device_set_powered(wifi->device, FALSE);
 711 }
 712
 713 static void scan_started(GSupplicantInterface *interface)
 714 {
 715         struct wifi_data *wifi;
 716
 717         DBG("");
 718
 719         wifi = g_supplicant_interface_get_data(interface);
 720
 721         if (wifi == NULL)
 722                 return;
 723 }
 724
 725 static void scan_finished(GSupplicantInterface *interface)
 726 {
 727         struct wifi_data *wifi;
 728
 729         DBG("");
 730
 731         wifi = g_supplicant_interface_get_data(interface);
 732
 733         if (wifi == NULL)
 734                 return;
 735 }
 736
 737 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
 738 {
 739         unsigned char strength;
 740
 741         strength = 120 + g_supplicant_network_get_signal(supplicant_network);
 742         if (strength > 100)
 743                 strength = 100;
 744
 745         return strength;
 746 }
 747
 748 static void network_added(GSupplicantNetwork *supplicant_network)
 749 {
 750         struct connman_network *network;
 751         GSupplicantInterface *interface;
 752         struct wifi_data *wifi;
 753         const char *name, *identifier, *mode, *security, *group;
 754         const unsigned char *ssid;
 755         unsigned int ssid_len;
 756         connman_bool_t wps;
 757
 758         DBG("");
 759
 760         interface = g_supplicant_network_get_interface(supplicant_network);
 761         wifi = g_supplicant_interface_get_data(interface);
 762         name = g_supplicant_network_get_name(supplicant_network);
 763         identifier = g_supplicant_network_get_identifier(supplicant_network);
 764         mode = g_supplicant_network_get_mode(supplicant_network);
 765         security = g_supplicant_network_get_security(supplicant_network);
 766         group = g_supplicant_network_get_identifier(supplicant_network);
 767         wps = g_supplicant_network_get_wps(supplicant_network);
 768
 769         if (wifi == NULL)
 770                 return;
 771
 772         ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
 773
 774         network = connman_device_get_network(wifi->device, identifier);
 775
 776         if (network == NULL) {
 777                 network = connman_network_create(identifier,
 778                                                 CONNMAN_NETWORK_TYPE_WIFI);
 779                 if (network == NULL)
 780                         return;
 781
 782                 connman_network_set_index(network, wifi->index);
 783
 784                 if (connman_device_add_network(wifi->device, network) < 0) {
 785                         connman_network_unref(network);
 786                         return;
 787                 }
 788         }
 789
 790         if (name != NULL && name[0] != '\0')
 791                 connman_network_set_name(network, name);
 792
 793         connman_network_set_blob(network, "WiFi.SSID",
 794                                                 ssid, ssid_len);
 795         connman_network_set_string(network, "WiFi.Mode", mode);
 796         connman_network_set_string(network, "WiFi.Security", security);
 797         connman_network_set_strength(network,
 798                                 calculate_strength(supplicant_network));
 799         connman_network_set_bool(network, "WiFi.WPS", wps);
 800
 801         connman_network_set_available(network, TRUE);
 802
 803         if (ssid != NULL)
 804                 connman_network_set_group(network, group);
 805 }
 806
 807 static void network_removed(GSupplicantNetwork *network)
 808 {
 809         GSupplicantInterface *interface;
 810         struct wifi_data *wifi;
 811         const char *name, *identifier;
 812
 813         interface = g_supplicant_network_get_interface(network);
 814         wifi = g_supplicant_interface_get_data(interface);
 815         identifier = g_supplicant_network_get_identifier(network);
 816         name = g_supplicant_network_get_name(network);
 817
 818         DBG("name %s", name);
 819
 820         if (wifi != NULL)
 821                 connman_device_remove_network(wifi->device, identifier);
 822 }
 823
 824 static void debug(const char *str)
 825 {
 826         if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
 827                 connman_debug("%s", str);
 828 }
 829
 830 static const GSupplicantCallbacks callbacks = {
 831         .system_ready           = system_ready,
 832         .system_killed          = system_killed,
 833         .interface_added        = interface_added,
 834         .interface_state        = interface_state,
 835         .interface_removed      = interface_removed,
 836         .scan_started           = scan_started,
 837         .scan_finished          = scan_finished,
 838         .network_added          = network_added,
 839         .network_removed        = network_removed,
 840         .debug                  = debug,
 841 };
 842
 843
 844 static int tech_probe(struct connman_technology *technology)
 845 {
 846         wifi_technology = technology;
 847
 848         return 0;
 849 }
 850
 851 static void tech_remove(struct connman_technology *technology)
 852 {
 853         wifi_technology = NULL;
 854 }
 855
 856 static void regdom_callback(void *user_data)
 857 {
 858         char *alpha2 = user_data;
 859
 860         DBG("");
 861
 862         if (wifi_technology == NULL)
 863                 return;
 864
 865         connman_technology_regdom_notify(wifi_technology, alpha2);
 866 }
 867
 868 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
 869 {
 870         return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
 871 }
 872
 873 static struct connman_technology_driver tech_driver = {
 874         .name           = "wifi",
 875         .type           = CONNMAN_SERVICE_TYPE_WIFI,
 876         .probe          = tech_probe,
 877         .remove         = tech_remove,
 878         .set_regdom     = tech_set_regdom,
 879 };
 880
 881 static int wifi_init(void)
 882 {
 883         int err;
 884
 885         err = connman_network_driver_register(&network_driver);
 886         if (err < 0)
 887                 return err;
 888
 889         err = g_supplicant_register(&callbacks);
 890         if (err < 0) {
 891                 connman_network_driver_unregister(&network_driver);
 892                 return err;
 893         }
 894
 895         err = connman_technology_driver_register(&tech_driver);
 896         if (err < 0) {
 897                 g_supplicant_unregister(&callbacks);
 898                 connman_network_driver_unregister(&network_driver);
 899                 return err;
 900         }
 901
 902         return 0;
 903 }
 904
 905 static void wifi_exit(void)
 906 {
 907         DBG();
 908
 909         connman_technology_driver_unregister(&tech_driver);
 910
 911         g_supplicant_unregister(&callbacks);
 912
 913         connman_network_driver_unregister(&network_driver);
 914 }
 915
 916 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
 917                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)