vcs.maemo.org Git - connman/blob - plugins/supplicant.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <stdio.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <net/ethernet.h>
  31
  32 #include <gdbus.h>
  33
  34 #define CONNMAN_API_SUBJECT_TO_CHANGE
  35 #include <connman/device.h>
  36 #include <connman/dbus.h>
  37 #include <connman/log.h>
  38
  39 #include "inet.h"
  40 #include "supplicant.h"
  41
  42 #define TIMEOUT 5000
  43
  44 #define IEEE80211_CAP_ESS       0x0001
  45 #define IEEE80211_CAP_IBSS      0x0002
  46 #define IEEE80211_CAP_PRIVACY   0x0010
  47
  48 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  49 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  50 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  51
  52 /* Taken from "WPA Supplicant - Common definitions" */
  53 enum supplicant_state {
  54         /**
  55          * WPA_DISCONNECTED - Disconnected state
  56          *
  57          * This state indicates that client is not associated, but is likely to
  58          * start looking for an access point. This state is entered when a
  59          * connection is lost.
  60          */
  61         WPA_DISCONNECTED,
  62
  63         /**
  64          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  65          *
  66          * This state is entered if there are no enabled networks in the
  67          * configuration. wpa_supplicant is not trying to associate with a new
  68          * network and external interaction (e.g., ctrl_iface call to add or
  69          * enable a network) is needed to start association.
  70          */
  71         WPA_INACTIVE,
  72
  73         /**
  74          * WPA_SCANNING - Scanning for a network
  75          *
  76          * This state is entered when wpa_supplicant starts scanning for a
  77          * network.
  78          */
  79         WPA_SCANNING,
  80
  81         /**
  82          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  83          *
  84          * This state is entered when wpa_supplicant has found a suitable BSS
  85          * to associate with and the driver is configured to try to associate
  86          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  87          * state is entered when the driver is configured to try to associate
  88          * with a network using the configured SSID and security policy.
  89          */
  90         WPA_ASSOCIATING,
  91
  92         /**
  93          * WPA_ASSOCIATED - Association completed
  94          *
  95          * This state is entered when the driver reports that association has
  96          * been successfully completed with an AP. If IEEE 802.1X is used
  97          * (with or without WPA/WPA2), wpa_supplicant remains in this state
  98          * until the IEEE 802.1X/EAPOL authentication has been completed.
  99          */
 100         WPA_ASSOCIATED,
 101
 102         /**
 103          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 104          *
 105          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 106          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 107          * frame after association. In case of WPA-EAP, this state is entered
 108          * when the IEEE 802.1X/EAPOL authentication has been completed.
 109          */
 110         WPA_4WAY_HANDSHAKE,
 111
 112         /**
 113          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 114          *
 115          * This state is entered when 4-Way Key Handshake has been completed
 116          * (i.e., when the supplicant sends out message 4/4) and when Group
 117          * Key rekeying is started by the AP (i.e., when supplicant receives
 118          * message 1/2).
 119          */
 120         WPA_GROUP_HANDSHAKE,
 121
 122         /**
 123          * WPA_COMPLETED - All authentication completed
 124          *
 125          * This state is entered when the full authentication process is
 126          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 127          * successfully completed. With WPA, this state is entered after the
 128          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 129          * completed after dynamic keys are received (or if not used, after
 130          * the EAP authentication has been completed). With static WEP keys and
 131          * plaintext connections, this state is entered when an association
 132          * has been completed.
 133          *
 134          * This state indicates that the supplicant has completed its
 135          * processing for the association phase and that data connection is
 136          * fully configured.
 137          */
 138         WPA_COMPLETED,
 139
 140         /**
 141          * WPA_INVALID - Invalid state (parsing error)
 142          *
 143          * This state is returned if the string input is invalid. It is not
 144          * an official wpa_supplicant state.
 145          */
 146         WPA_INVALID,
 147 };
 148
 149 struct supplicant_result {
 150         char *path;
 151         char *name;
 152         char *addr;
 153         unsigned char *ssid;
 154         unsigned int ssid_len;
 155         dbus_uint16_t capabilities;
 156         gboolean adhoc;
 157         gboolean has_wep;
 158         gboolean has_wpa;
 159         gboolean has_rsn;
 160         gboolean has_wps;
 161         dbus_int32_t frequency;
 162         dbus_int32_t quality;
 163         dbus_int32_t noise;
 164         dbus_int32_t level;
 165         dbus_int32_t maxrate;
 166 };
 167
 168 struct supplicant_task {
 169         int ifindex;
 170         char *ifname;
 171         struct connman_device *device;
 172         struct connman_network *network;
 173         char *path;
 174         char *netpath;
 175         gboolean created;
 176         enum supplicant_state state;
 177         gboolean noscan;
 178         GSList *scan_results;
 179 };
 180
 181 static GSList *task_list = NULL;
 182
 183 static DBusConnection *connection;
 184
 185 static void free_task(struct supplicant_task *task)
 186 {
 187         DBG("task %p", task);
 188
 189         g_free(task->ifname);
 190         g_free(task->path);
 191         g_free(task);
 192 }
 193
 194 static struct supplicant_task *find_task_by_index(int index)
 195 {
 196         GSList *list;
 197
 198         for (list = task_list; list; list = list->next) {
 199                 struct supplicant_task *task = list->data;
 200
 201                 if (task->ifindex == index)
 202                         return task;
 203         }
 204
 205         return NULL;
 206 }
 207
 208 static struct supplicant_task *find_task_by_path(const char *path)
 209 {
 210         GSList *list;
 211
 212         for (list = task_list; list; list = list->next) {
 213                 struct supplicant_task *task = list->data;
 214
 215                 if (g_str_equal(task->path, path) == TRUE)
 216                         return task;
 217         }
 218
 219         return NULL;
 220 }
 221
 222 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 223 {
 224         struct supplicant_task *task = user_data;
 225         DBusMessage *reply;
 226         DBusError error;
 227         const char *path;
 228
 229         DBG("task %p", task);
 230
 231         reply = dbus_pending_call_steal_reply(call);
 232         if (reply == NULL)
 233                 return;
 234
 235         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 236                 goto done;
 237
 238         dbus_error_init(&error);
 239
 240         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 241                                                 DBUS_TYPE_INVALID) == FALSE) {
 242                 if (dbus_error_is_set(&error) == TRUE) {
 243                         connman_error("%s", error.message);
 244                         dbus_error_free(&error);
 245                 } else
 246                         connman_error("Wrong arguments for add interface");
 247                 goto done;
 248         }
 249
 250         DBG("path %s", path);
 251
 252         task->path = g_strdup(path);
 253         task->created = TRUE;
 254
 255         connman_device_set_powered(task->device, TRUE);
 256
 257 done:
 258         dbus_message_unref(reply);
 259 }
 260
 261 static int add_interface(struct supplicant_task *task)
 262 {
 263         DBusMessage *message;
 264         DBusPendingCall *call;
 265
 266         DBG("task %p", task);
 267
 268         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 269                                         SUPPLICANT_INTF, "addInterface");
 270         if (message == NULL)
 271                 return -ENOMEM;
 272
 273         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 274                                                         DBUS_TYPE_INVALID);
 275
 276         if (dbus_connection_send_with_reply(connection, message,
 277                                                 &call, TIMEOUT) == FALSE) {
 278                 connman_error("Failed to add interface");
 279                 dbus_message_unref(message);
 280                 return -EIO;
 281         }
 282
 283         if (call == NULL) {
 284                 connman_error("D-Bus connection not available");
 285                 dbus_message_unref(message);
 286                 return -EIO;
 287         }
 288
 289         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 290
 291         dbus_message_unref(message);
 292
 293         return -EINPROGRESS;
 294 }
 295
 296 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 297 {
 298         struct supplicant_task *task = user_data;
 299         DBusMessage *reply;
 300         DBusError error;
 301         const char *path;
 302
 303         DBG("task %p", task);
 304
 305         reply = dbus_pending_call_steal_reply(call);
 306         if (reply == NULL)
 307                 return;
 308
 309         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 310                 add_interface(task);
 311                 goto done;
 312         }
 313
 314         dbus_error_init(&error);
 315
 316         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 317                                                 DBUS_TYPE_INVALID) == FALSE) {
 318                 if (dbus_error_is_set(&error) == TRUE) {
 319                         connman_error("%s", error.message);
 320                         dbus_error_free(&error);
 321                 } else
 322                         connman_error("Wrong arguments for get interface");
 323                 goto done;
 324         }
 325
 326         DBG("path %s", path);
 327
 328         task->path = g_strdup(path);
 329         task->created = FALSE;
 330
 331         connman_device_set_powered(task->device, TRUE);
 332
 333 done:
 334         dbus_message_unref(reply);
 335 }
 336
 337 static int create_interface(struct supplicant_task *task)
 338 {
 339         DBusMessage *message;
 340         DBusPendingCall *call;
 341
 342         DBG("task %p", task);
 343
 344         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 345                                         SUPPLICANT_INTF, "getInterface");
 346         if (message == NULL)
 347                 return -ENOMEM;
 348
 349         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 350                                                         DBUS_TYPE_INVALID);
 351
 352         if (dbus_connection_send_with_reply(connection, message,
 353                                                 &call, TIMEOUT) == FALSE) {
 354                 connman_error("Failed to get interface");
 355                 dbus_message_unref(message);
 356                 return -EIO;
 357         }
 358
 359         if (call == NULL) {
 360                 connman_error("D-Bus connection not available");
 361                 dbus_message_unref(message);
 362                 return -EIO;
 363         }
 364
 365         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 366
 367         dbus_message_unref(message);
 368
 369         return -EINPROGRESS;
 370 }
 371
 372 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 373 {
 374         struct supplicant_task *task = user_data;
 375         DBusMessage *reply;
 376
 377         DBG("task %p", task);
 378
 379         reply = dbus_pending_call_steal_reply(call);
 380
 381         connman_device_set_powered(task->device, FALSE);
 382
 383         connman_device_unref(task->device);
 384
 385         inet_ifdown(task->ifindex);
 386
 387         free_task(task);
 388
 389         dbus_message_unref(reply);
 390 }
 391
 392 static int remove_interface(struct supplicant_task *task)
 393 {
 394         DBusMessage *message;
 395         DBusPendingCall *call;
 396
 397         DBG("task %p", task);
 398
 399         if (task->created == FALSE) {
 400                 connman_device_set_powered(task->device, FALSE);
 401                 return 0;
 402         }
 403
 404         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 405                                         SUPPLICANT_INTF, "removeInterface");
 406         if (message == NULL)
 407                 return -ENOMEM;
 408
 409         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 410                                                         DBUS_TYPE_INVALID);
 411
 412         if (dbus_connection_send_with_reply(connection, message,
 413                                                 &call, TIMEOUT) == FALSE) {
 414                 connman_error("Failed to remove interface");
 415                 dbus_message_unref(message);
 416                 return -EIO;
 417         }
 418
 419         if (call == NULL) {
 420                 connman_error("D-Bus connection not available");
 421                 dbus_message_unref(message);
 422                 return -EIO;
 423         }
 424
 425         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 426
 427         dbus_message_unref(message);
 428
 429         return -EINPROGRESS;
 430 }
 431
 432 #if 0
 433 static int set_ap_scan(struct supplicant_task *task)
 434 {
 435         DBusMessage *message, *reply;
 436         DBusError error;
 437         guint32 ap_scan = 1;
 438
 439         DBG("task %p", task);
 440
 441         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 442                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 443         if (message == NULL)
 444                 return -ENOMEM;
 445
 446         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 447                                                         DBUS_TYPE_INVALID);
 448
 449         dbus_error_init(&error);
 450
 451         reply = dbus_connection_send_with_reply_and_block(connection,
 452                                                         message, -1, &error);
 453         if (reply == NULL) {
 454                 if (dbus_error_is_set(&error) == TRUE) {
 455                         connman_error("%s", error.message);
 456                         dbus_error_free(&error);
 457                 } else
 458                         connman_error("Failed to set AP scan");
 459                 dbus_message_unref(message);
 460                 return -EIO;
 461         }
 462
 463         dbus_message_unref(message);
 464
 465         dbus_message_unref(reply);
 466
 467         return 0;
 468 }
 469 #endif
 470
 471 static int add_network(struct supplicant_task *task)
 472 {
 473         DBusMessage *message, *reply;
 474         DBusError error;
 475         const char *path;
 476
 477         DBG("task %p", task);
 478
 479         if (task->netpath != NULL)
 480                 return -EALREADY;
 481
 482         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 483                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 484         if (message == NULL)
 485                 return -ENOMEM;
 486
 487         dbus_error_init(&error);
 488
 489         reply = dbus_connection_send_with_reply_and_block(connection,
 490                                                         message, -1, &error);
 491         if (reply == NULL) {
 492                 if (dbus_error_is_set(&error) == TRUE) {
 493                         connman_error("%s", error.message);
 494                         dbus_error_free(&error);
 495                 } else
 496                         connman_error("Failed to add network");
 497                 dbus_message_unref(message);
 498                 return -EIO;
 499         }
 500
 501         dbus_message_unref(message);
 502
 503         dbus_error_init(&error);
 504
 505         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 506                                                 DBUS_TYPE_INVALID) == FALSE) {
 507                 if (dbus_error_is_set(&error) == TRUE) {
 508                         connman_error("%s", error.message);
 509                         dbus_error_free(&error);
 510                 } else
 511                         connman_error("Wrong arguments for network");
 512                 dbus_message_unref(reply);
 513                 return -EIO;
 514         }
 515
 516         DBG("path %s", path);
 517
 518         task->netpath = g_strdup(path);
 519
 520         dbus_message_unref(reply);
 521
 522         return 0;
 523 }
 524
 525 static int remove_network(struct supplicant_task *task)
 526 {
 527         DBusMessage *message, *reply;
 528         DBusError error;
 529
 530         DBG("task %p", task);
 531
 532         if (task->netpath == NULL)
 533                 return -EINVAL;
 534
 535         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 536                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 537         if (message == NULL)
 538                 return -ENOMEM;
 539
 540         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 541                                                         DBUS_TYPE_INVALID);
 542
 543         dbus_error_init(&error);
 544
 545         reply = dbus_connection_send_with_reply_and_block(connection,
 546                                                         message, -1, &error);
 547         if (reply == NULL) {
 548                 if (dbus_error_is_set(&error) == TRUE) {
 549                         connman_error("%s", error.message);
 550                         dbus_error_free(&error);
 551                 } else
 552                         connman_error("Failed to remove network");
 553                 dbus_message_unref(message);
 554                 return -EIO;
 555         }
 556
 557         dbus_message_unref(message);
 558
 559         dbus_message_unref(reply);
 560
 561         g_free(task->netpath);
 562         task->netpath = NULL;
 563
 564         return 0;
 565 }
 566
 567 static int select_network(struct supplicant_task *task)
 568 {
 569         DBusMessage *message, *reply;
 570         DBusError error;
 571
 572         DBG("task %p", task);
 573
 574         if (task->netpath == NULL)
 575                 return -EINVAL;
 576
 577         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 578                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 579         if (message == NULL)
 580                 return -ENOMEM;
 581
 582         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 583                                                         DBUS_TYPE_INVALID);
 584
 585         dbus_error_init(&error);
 586
 587         reply = dbus_connection_send_with_reply_and_block(connection,
 588                                                         message, -1, &error);
 589         if (reply == NULL) {
 590                 if (dbus_error_is_set(&error) == TRUE) {
 591                         connman_error("%s", error.message);
 592                         dbus_error_free(&error);
 593                 } else
 594                         connman_error("Failed to select network");
 595                 dbus_message_unref(message);
 596                 return -EIO;
 597         }
 598
 599         dbus_message_unref(message);
 600
 601         dbus_message_unref(reply);
 602
 603         return 0;
 604 }
 605
 606 static int enable_network(struct supplicant_task *task)
 607 {
 608         DBusMessage *message, *reply;
 609         DBusError error;
 610
 611         DBG("task %p", task);
 612
 613         if (task->netpath == NULL)
 614                 return -EINVAL;
 615
 616         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 617                                         SUPPLICANT_INTF ".Network", "enable");
 618         if (message == NULL)
 619                 return -ENOMEM;
 620
 621         dbus_error_init(&error);
 622
 623         reply = dbus_connection_send_with_reply_and_block(connection,
 624                                                         message, -1, &error);
 625         if (reply == NULL) {
 626                 if (dbus_error_is_set(&error) == TRUE) {
 627                         connman_error("%s", error.message);
 628                         dbus_error_free(&error);
 629                 } else
 630                         connman_error("Failed to enable network");
 631                 dbus_message_unref(message);
 632                 return -EIO;
 633         }
 634
 635         dbus_message_unref(message);
 636
 637         dbus_message_unref(reply);
 638
 639         return 0;
 640 }
 641
 642 static int disable_network(struct supplicant_task *task)
 643 {
 644         DBusMessage *message, *reply;
 645         DBusError error;
 646
 647         DBG("task %p", task);
 648
 649         if (task->netpath == NULL)
 650                 return -EINVAL;
 651
 652         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 653                                         SUPPLICANT_INTF ".Network", "disable");
 654         if (message == NULL)
 655                 return -ENOMEM;
 656
 657         dbus_error_init(&error);
 658
 659         reply = dbus_connection_send_with_reply_and_block(connection,
 660                                                         message, -1, &error);
 661         if (reply == NULL) {
 662                 if (dbus_error_is_set(&error) == TRUE) {
 663                         connman_error("%s", error.message);
 664                         dbus_error_free(&error);
 665                 } else
 666                         connman_error("Failed to disable network");
 667                 dbus_message_unref(message);
 668                 return -EIO;
 669         }
 670
 671         dbus_message_unref(message);
 672
 673         dbus_message_unref(reply);
 674
 675         return 0;
 676 }
 677
 678 static int set_network(struct supplicant_task *task,
 679                                 const unsigned char *network, int len,
 680                                 const char *address, const char *security,
 681                                                         const char *passphrase)
 682 {
 683         DBusMessage *message, *reply;
 684         DBusMessageIter array, dict;
 685         DBusError error;
 686
 687         DBG("task %p", task);
 688
 689         if (task->netpath == NULL)
 690                 return -EINVAL;
 691
 692         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 693                                         SUPPLICANT_INTF ".Network", "set");
 694         if (message == NULL)
 695                 return -ENOMEM;
 696
 697         dbus_message_iter_init_append(message, &array);
 698
 699         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 700                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 701                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 702                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 703
 704         if (address == NULL) {
 705                 dbus_uint32_t scan_ssid = 1;
 706                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 707                                                 DBUS_TYPE_UINT32, &scan_ssid);
 708         } else
 709                 connman_dbus_dict_append_variant(&dict, "bssid",
 710                                                 DBUS_TYPE_STRING, &address);
 711
 712         connman_dbus_dict_append_array(&dict, "ssid",
 713                                         DBUS_TYPE_BYTE, &network, len);
 714
 715         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 716                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 717                 const char *key_mgmt = "WPA-PSK";
 718                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 719                                                 DBUS_TYPE_STRING, &key_mgmt);
 720
 721                 if (passphrase && strlen(passphrase) > 0)
 722                         connman_dbus_dict_append_variant(&dict, "psk",
 723                                                 DBUS_TYPE_STRING, &passphrase);
 724         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 725                 const char *key_mgmt = "NONE", *index = "0";
 726                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 727                                                 DBUS_TYPE_STRING, &key_mgmt);
 728
 729                 if (passphrase) {
 730                         int size = strlen(passphrase);
 731                         if (size == 10 || size == 26) {
 732                                 unsigned char *key = malloc(13);
 733                                 char tmp[3];
 734                                 int i;
 735                                 memset(tmp, 0, sizeof(tmp));
 736                                 if (key == NULL)
 737                                         size = 0;
 738                                 for (i = 0; i < size / 2; i++) {
 739                                         memcpy(tmp, passphrase + (i * 2), 2);
 740                                         key[i] = (unsigned char) strtol(tmp,
 741                                                                 NULL, 16);
 742                                 }
 743                                 connman_dbus_dict_append_array(&dict,
 744                                                 "wep_key0", DBUS_TYPE_BYTE,
 745                                                         &key, size / 2);
 746                                 free(key);
 747                         } else
 748                                 connman_dbus_dict_append_variant(&dict,
 749                                                 "wep_key0", DBUS_TYPE_STRING,
 750                                                                 &passphrase);
 751                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 752                                                 DBUS_TYPE_STRING, &index);
 753                 }
 754         } else {
 755                 const char *key_mgmt = "NONE";
 756                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 757                                                 DBUS_TYPE_STRING, &key_mgmt);
 758         }
 759
 760         dbus_message_iter_close_container(&array, &dict);
 761
 762         dbus_error_init(&error);
 763
 764         reply = dbus_connection_send_with_reply_and_block(connection,
 765                                                         message, -1, &error);
 766         if (reply == NULL) {
 767                 if (dbus_error_is_set(&error) == TRUE) {
 768                         connman_error("%s", error.message);
 769                         dbus_error_free(&error);
 770                 } else
 771                         connman_error("Failed to set network options");
 772                 dbus_message_unref(message);
 773                 return -EIO;
 774         }
 775
 776         dbus_message_unref(message);
 777
 778         dbus_message_unref(reply);
 779
 780         return 0;
 781 }
 782
 783 static int initiate_scan(struct supplicant_task *task)
 784 {
 785         DBusMessage *message;
 786         DBusPendingCall *call;
 787
 788         DBG("task %p", task);
 789
 790         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 791                                         SUPPLICANT_INTF ".Interface", "scan");
 792         if (message == NULL)
 793                 return -ENOMEM;
 794
 795         if (dbus_connection_send_with_reply(connection, message,
 796                                                 &call, TIMEOUT) == FALSE) {
 797                 connman_error("Failed to initiate scan");
 798                 dbus_message_unref(message);
 799                 return -EIO;
 800         }
 801
 802         dbus_message_unref(message);
 803
 804         return 0;
 805 }
 806
 807 static struct {
 808         char *name;
 809         char *value;
 810 } special_ssid[] = {
 811         { "<hidden>", "hidden"  },
 812         { "default",  "linksys" },
 813         { "wireless"  },
 814         { "linksys"   },
 815         { "netgear"   },
 816         { "dlink"     },
 817         { "2wire"     },
 818         { "compaq"    },
 819         { "tsunami"   },
 820         { "comcomcom" },
 821         { "Symbol",    "symbol"   },
 822         { "Wireless" , "wireless" },
 823         { "WLAN",      "wlan"     },
 824         { }
 825 };
 826
 827 static char *build_group(const char *addr, const char *name,
 828                         const unsigned char *ssid, unsigned int ssid_len,
 829                                         const char *mode, const char *security)
 830 {
 831         GString *str;
 832         unsigned int i;
 833
 834         if (addr == NULL)
 835                 return NULL;
 836
 837         str = g_string_sized_new((ssid_len * 2) + 24);
 838         if (str == NULL)
 839                 return NULL;
 840
 841         for (i = 0; special_ssid[i].name; i++) {
 842                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 843                         if (special_ssid[i].value == NULL)
 844                                 g_string_append_printf(str, "%s_%s",
 845                                                                 name, addr);
 846                         else
 847                                 g_string_append_printf(str, "%s_%s",
 848                                                 special_ssid[i].value, addr);
 849                         goto done;
 850                 }
 851         }
 852
 853         if (ssid_len > 0 && ssid[0] != '\0') {
 854                 for (i = 0; i < ssid_len; i++)
 855                         g_string_append_printf(str, "%02x", ssid[i]);
 856         } else
 857                 g_string_append_printf(str, "hidden_%s", addr);
 858
 859 done:
 860         g_string_append_printf(str, "_%s_%s", mode, security);
 861
 862         return g_string_free(str, FALSE);
 863 }
 864
 865 static void extract_addr(DBusMessageIter *value,
 866                                         struct supplicant_result *result)
 867 {
 868         DBusMessageIter array;
 869         struct ether_addr *eth;
 870         unsigned char *addr;
 871         int addr_len;
 872
 873         dbus_message_iter_recurse(value, &array);
 874         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 875
 876         if (addr_len != 6)
 877                 return;
 878
 879         eth = (void *) addr;
 880
 881         result->addr = g_try_malloc0(18);
 882         if (result->addr == NULL)
 883                 return;
 884
 885         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 886                                                 eth->ether_addr_octet[0],
 887                                                 eth->ether_addr_octet[1],
 888                                                 eth->ether_addr_octet[2],
 889                                                 eth->ether_addr_octet[3],
 890                                                 eth->ether_addr_octet[4],
 891                                                 eth->ether_addr_octet[5]);
 892
 893         result->path = g_try_malloc0(18);
 894         if (result->path == NULL)
 895                 return;
 896
 897         snprintf(result->path, 18, "%02x%02x%02x%02x%02x%02x",
 898                                                 eth->ether_addr_octet[0],
 899                                                 eth->ether_addr_octet[1],
 900                                                 eth->ether_addr_octet[2],
 901                                                 eth->ether_addr_octet[3],
 902                                                 eth->ether_addr_octet[4],
 903                                                 eth->ether_addr_octet[5]);
 904 }
 905
 906 static void extract_ssid(DBusMessageIter *value,
 907                                         struct supplicant_result *result)
 908 {
 909         DBusMessageIter array;
 910         unsigned char *ssid;
 911         int ssid_len;
 912
 913         dbus_message_iter_recurse(value, &array);
 914         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 915
 916         if (ssid_len < 1)
 917                 return;
 918
 919         result->ssid = g_try_malloc(ssid_len);
 920         if (result->ssid == NULL)
 921                 return;
 922
 923         memcpy(result->ssid, ssid, ssid_len);
 924         result->ssid_len = ssid_len;
 925
 926         result->name = g_try_malloc0(ssid_len + 1);
 927         if (result->name == NULL)
 928                 return;
 929
 930         memcpy(result->name, ssid, ssid_len);
 931 }
 932
 933 static void extract_wpaie(DBusMessageIter *value,
 934                                         struct supplicant_result *result)
 935 {
 936         DBusMessageIter array;
 937         unsigned char *ie;
 938         int ie_len;
 939
 940         dbus_message_iter_recurse(value, &array);
 941         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 942
 943         if (ie_len > 0)
 944                 result->has_wpa = TRUE;
 945 }
 946
 947 static void extract_rsnie(DBusMessageIter *value,
 948                                         struct supplicant_result *result)
 949 {
 950         DBusMessageIter array;
 951         unsigned char *ie;
 952         int ie_len;
 953
 954         dbus_message_iter_recurse(value, &array);
 955         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 956
 957         if (ie_len > 0)
 958                 result->has_rsn = TRUE;
 959 }
 960
 961 static void extract_wpsie(DBusMessageIter *value,
 962                                         struct supplicant_result *result)
 963 {
 964         DBusMessageIter array;
 965         unsigned char *ie;
 966         int ie_len;
 967
 968         dbus_message_iter_recurse(value, &array);
 969         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 970
 971         if (ie_len > 0)
 972                 result->has_wps = TRUE;
 973 }
 974
 975 static void extract_capabilites(DBusMessageIter *value,
 976                                         struct supplicant_result *result)
 977 {
 978         dbus_message_iter_get_basic(value, &result->capabilities);
 979
 980         if (result->capabilities & IEEE80211_CAP_ESS)
 981                 result->adhoc = FALSE;
 982         else if (result->capabilities & IEEE80211_CAP_IBSS)
 983                 result->adhoc = TRUE;
 984
 985         if (result->capabilities & IEEE80211_CAP_PRIVACY)
 986                 result->has_wep = TRUE;
 987 }
 988
 989 static unsigned char calculate_strength(struct supplicant_result *result)
 990 {
 991         if (result->quality < 0)
 992                 return 0;
 993
 994         return result->quality;
 995 }
 996
 997 static void get_properties(struct supplicant_task *task);
 998
 999 static void properties_reply(DBusPendingCall *call, void *user_data)
1000 {
1001         struct supplicant_task *task = user_data;
1002         struct supplicant_result result;
1003         struct connman_network *network;
1004         DBusMessage *reply;
1005         DBusMessageIter array, dict;
1006         unsigned char strength;
1007         unsigned short frequency;
1008         const char *mode, *security;
1009         char *group;
1010
1011         DBG("task %p", task);
1012
1013         reply = dbus_pending_call_steal_reply(call);
1014         if (reply == NULL) {
1015                 get_properties(task);
1016                 return;
1017         }
1018
1019         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1020                 dbus_message_unref(reply);
1021                 get_properties(task);
1022                 return;
1023         }
1024
1025         memset(&result, 0, sizeof(result));
1026         result.quality = -1;
1027         result.level = -1;
1028         result.noise = -1;
1029
1030         dbus_message_iter_init(reply, &array);
1031
1032         dbus_message_iter_recurse(&array, &dict);
1033
1034         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1035                 DBusMessageIter entry, value;
1036                 const char *key;
1037
1038                 dbus_message_iter_recurse(&dict, &entry);
1039                 dbus_message_iter_get_basic(&entry, &key);
1040
1041                 dbus_message_iter_next(&entry);
1042
1043                 dbus_message_iter_recurse(&entry, &value);
1044
1045                 //type = dbus_message_iter_get_arg_type(&value);
1046                 //dbus_message_iter_get_basic(&value, &val);
1047
1048                 /*
1049                  * bssid        : a (97)
1050                  * ssid         : a (97)
1051                  * wpaie        : a (97)
1052                  * rsnie        : a (97)
1053                  * wpsie        : a (97)
1054                  * frequency    : i (105)
1055                  * capabilities : q (113)
1056                  * quality      : i (105)
1057                  * noise        : i (105)
1058                  * level        : i (105)
1059                  * maxrate      : i (105)
1060                  */
1061
1062                 if (g_str_equal(key, "bssid") == TRUE)
1063                         extract_addr(&value, &result);
1064                 else if (g_str_equal(key, "ssid") == TRUE)
1065                         extract_ssid(&value, &result);
1066                 else if (g_str_equal(key, "wpaie") == TRUE)
1067                         extract_wpaie(&value, &result);
1068                 else if (g_str_equal(key, "rsnie") == TRUE)
1069                         extract_rsnie(&value, &result);
1070                 else if (g_str_equal(key, "wpsie") == TRUE)
1071                         extract_wpsie(&value, &result);
1072                 else if (g_str_equal(key, "capabilities") == TRUE)
1073                         extract_capabilites(&value, &result);
1074                 else if (g_str_equal(key, "frequency") == TRUE)
1075                         dbus_message_iter_get_basic(&value, &result.frequency);
1076                 else if (g_str_equal(key, "quality") == TRUE)
1077                         dbus_message_iter_get_basic(&value, &result.quality);
1078                 else if (g_str_equal(key, "noise") == TRUE)
1079                         dbus_message_iter_get_basic(&value, &result.noise);
1080                 else if (g_str_equal(key, "level") == TRUE)
1081                         dbus_message_iter_get_basic(&value, &result.level);
1082                 else if (g_str_equal(key, "maxrate") == TRUE)
1083                         dbus_message_iter_get_basic(&value, &result.maxrate);
1084
1085                 dbus_message_iter_next(&dict);
1086         }
1087
1088         if (result.path == NULL)
1089                 goto done;
1090
1091         if (result.path[0] == '\0')
1092                 goto done;
1093
1094         strength  = calculate_strength(&result);
1095         frequency = result.frequency;
1096
1097         if (result.has_rsn == TRUE)
1098                 security = "rsn";
1099         else if (result.has_wpa == TRUE)
1100                 security = "wpa";
1101         else if (result.has_wep == TRUE)
1102                 security = "wep";
1103         else
1104                 security = "none";
1105
1106         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1107
1108         group = build_group(result.path, result.name,
1109                                         result.ssid, result.ssid_len,
1110                                                         mode, security);
1111
1112         network = connman_device_get_network(task->device, result.path);
1113         if (network == NULL) {
1114                 int index;
1115
1116                 network = connman_network_create(result.path,
1117                                                 CONNMAN_NETWORK_TYPE_WIFI);
1118                 if (network == NULL)
1119                         goto done;
1120
1121                 index = connman_device_get_index(task->device);
1122                 connman_network_set_index(network, index);
1123
1124                 connman_network_set_protocol(network,
1125                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1126
1127                 connman_network_set_string(network, "Address", result.addr);
1128
1129                 if (connman_device_add_network(task->device, network) < 0) {
1130                         connman_network_unref(network);
1131                         goto done;
1132                 }
1133         }
1134
1135         if (result.name != NULL && result.name[0] != '\0')
1136                 connman_network_set_string(network, "Name", result.name);
1137
1138         connman_network_set_blob(network, "WiFi.SSID",
1139                                                 result.ssid, result.ssid_len);
1140
1141         connman_network_set_string(network, "WiFi.Mode", mode);
1142
1143         DBG("%s (%s %s) strength %d (%s)",
1144                                 result.name, mode, security, strength,
1145                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1146
1147         connman_network_set_available(network, TRUE);
1148         connman_network_set_uint8(network, "Strength", strength);
1149         connman_network_set_uint16(network, "Frequency", frequency);
1150
1151         connman_network_set_string(network, "WiFi.Security", security);
1152
1153         connman_network_set_group(network, group);
1154
1155         g_free(group);
1156
1157 done:
1158         g_free(result.path);
1159         g_free(result.addr);
1160         g_free(result.name);
1161         g_free(result.ssid);
1162
1163         dbus_message_unref(reply);
1164
1165         get_properties(task);
1166 }
1167
1168 static void get_properties(struct supplicant_task *task)
1169 {
1170         DBusMessage *message;
1171         DBusPendingCall *call;
1172         char *path;
1173
1174         path = g_slist_nth_data(task->scan_results, 0);
1175         if (path == NULL)
1176                 goto noscan;
1177
1178         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1179                                                 SUPPLICANT_INTF ".BSSID",
1180                                                                 "properties");
1181
1182         task->scan_results = g_slist_remove(task->scan_results, path);
1183         g_free(path);
1184
1185         if (message == NULL)
1186                 goto noscan;
1187
1188         if (dbus_connection_send_with_reply(connection, message,
1189                                                 &call, TIMEOUT) == FALSE) {
1190                 connman_error("Failed to get network properties");
1191                 dbus_message_unref(message);
1192                 goto noscan;
1193         }
1194
1195         if (call == NULL) {
1196                 connman_error("D-Bus connection not available");
1197                 dbus_message_unref(message);
1198                 goto noscan;
1199         }
1200
1201         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1202
1203         dbus_message_unref(message);
1204
1205         return;
1206
1207 noscan:
1208         if (task->noscan == FALSE)
1209                 connman_device_set_scanning(task->device, FALSE);
1210 }
1211
1212 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1213 {
1214         struct supplicant_task *task = user_data;
1215         DBusMessage *reply;
1216         DBusError error;
1217         char **results;
1218         int i, num_results;
1219
1220         DBG("task %p", task);
1221
1222         reply = dbus_pending_call_steal_reply(call);
1223         if (reply == NULL)
1224                 goto noscan;
1225
1226         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1227                 goto done;
1228
1229         dbus_error_init(&error);
1230
1231         if (dbus_message_get_args(reply, &error,
1232                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1233                                                 &results, &num_results,
1234                                                 DBUS_TYPE_INVALID) == FALSE) {
1235                 if (dbus_error_is_set(&error) == TRUE) {
1236                         connman_error("%s", error.message);
1237                         dbus_error_free(&error);
1238                 } else
1239                         connman_error("Wrong arguments for scan result");
1240                 goto done;
1241         }
1242
1243         if (num_results == 0)
1244                 goto done;
1245
1246         for (i = 0; i < num_results; i++) {
1247                 char *path = g_strdup(results[i]);
1248                 if (path == NULL)
1249                         continue;
1250
1251                 task->scan_results = g_slist_append(task->scan_results, path);
1252         }
1253
1254         g_strfreev(results);
1255
1256         dbus_message_unref(reply);
1257
1258         get_properties(task);
1259
1260         return;
1261
1262 done:
1263         dbus_message_unref(reply);
1264
1265 noscan:
1266         if (task->noscan == FALSE)
1267                 connman_device_set_scanning(task->device, FALSE);
1268 }
1269
1270 static void scan_results_available(struct supplicant_task *task)
1271 {
1272         DBusMessage *message;
1273         DBusPendingCall *call;
1274
1275         DBG("task %p", task);
1276
1277         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1278                                                 SUPPLICANT_INTF ".Interface",
1279                                                         "scanResults");
1280         if (message == NULL)
1281                 return;
1282
1283         if (dbus_connection_send_with_reply(connection, message,
1284                                                 &call, TIMEOUT) == FALSE) {
1285                 connman_error("Failed to request scan result");
1286                 goto done;
1287         }
1288
1289         if (task->noscan == FALSE)
1290                 connman_device_set_scanning(task->device, TRUE);
1291
1292         if (call == NULL) {
1293                 connman_error("D-Bus connection not available");
1294                 goto done;
1295         }
1296
1297         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1298
1299 done:
1300         dbus_message_unref(message);
1301 }
1302
1303 static enum supplicant_state string2state(const char *state)
1304 {
1305         if (g_str_equal(state, "INACTIVE") == TRUE)
1306                 return WPA_INACTIVE;
1307         else if (g_str_equal(state, "SCANNING") == TRUE)
1308                 return WPA_SCANNING;
1309         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1310                 return WPA_ASSOCIATING;
1311         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1312                 return WPA_ASSOCIATED;
1313         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1314                 return WPA_GROUP_HANDSHAKE;
1315         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1316                 return WPA_4WAY_HANDSHAKE;
1317         else if (g_str_equal(state, "COMPLETED") == TRUE)
1318                 return WPA_COMPLETED;
1319         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1320                 return WPA_DISCONNECTED;
1321         else
1322                 return WPA_INVALID;
1323 }
1324
1325 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1326 {
1327         DBusError error;
1328         const char *newstate, *oldstate;
1329         enum supplicant_state state;
1330
1331         dbus_error_init(&error);
1332
1333         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1334                                                 DBUS_TYPE_STRING, &oldstate,
1335                                                 DBUS_TYPE_INVALID) == FALSE) {
1336                 if (dbus_error_is_set(&error) == TRUE) {
1337                         connman_error("%s", error.message);
1338                         dbus_error_free(&error);
1339                 } else
1340                         connman_error("Wrong arguments for state change");
1341                 return;
1342         }
1343
1344         DBG("state %s ==> %s", oldstate, newstate);
1345
1346         state = string2state(newstate);
1347         if (state == WPA_INVALID)
1348                 return;
1349
1350         task->state = state;
1351
1352         switch (task->state) {
1353         case WPA_SCANNING:
1354                 task->noscan = TRUE;
1355                 connman_device_set_scanning(task->device, TRUE);
1356                 break;
1357         case WPA_ASSOCIATING:
1358         case WPA_ASSOCIATED:
1359         case WPA_4WAY_HANDSHAKE:
1360         case WPA_GROUP_HANDSHAKE:
1361                 task->noscan = TRUE;
1362                 break;
1363         case WPA_COMPLETED:
1364         case WPA_DISCONNECTED:
1365                 task->noscan = FALSE;
1366                 break;
1367         case WPA_INACTIVE:
1368                 task->noscan = FALSE;
1369                 connman_device_set_scanning(task->device, FALSE);
1370                 break;
1371         case WPA_INVALID:
1372                 break;
1373         }
1374
1375         if (task->network == NULL)
1376                 return;
1377
1378         switch (task->state) {
1379         case WPA_COMPLETED:
1380                 /* carrier on */
1381                 connman_network_set_connected(task->network, TRUE);
1382                 connman_device_set_scanning(task->device, FALSE);
1383                 break;
1384         case WPA_DISCONNECTED:
1385                 /* carrier off */
1386                 connman_network_set_connected(task->network, FALSE);
1387                 connman_device_set_scanning(task->device, FALSE);
1388                 break;
1389         case WPA_ASSOCIATING:
1390                 connman_network_set_associating(task->network, TRUE);
1391                 break;
1392         default:
1393                 connman_network_set_associating(task->network, FALSE);
1394                 break;
1395         }
1396 }
1397
1398 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1399                                                 DBusMessage *msg, void *data)
1400 {
1401         struct supplicant_task *task;
1402         const char *member, *path;
1403
1404         if (dbus_message_has_interface(msg,
1405                                 SUPPLICANT_INTF ".Interface") == FALSE)
1406                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1407
1408         member = dbus_message_get_member(msg);
1409         if (member == NULL)
1410                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1411
1412         path = dbus_message_get_path(msg);
1413         if (path == NULL)
1414                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1415
1416         task = find_task_by_path(path);
1417         if (task == NULL)
1418                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1419
1420         DBG("task %p member %s", task, member);
1421
1422         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1423                 scan_results_available(task);
1424         else if (g_str_equal(member, "StateChange") == TRUE)
1425                 state_change(task, msg);
1426
1427         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1428 }
1429
1430 int supplicant_start(struct connman_device *device)
1431 {
1432         struct supplicant_task *task;
1433
1434         DBG("device %p", device);
1435
1436         task = g_try_new0(struct supplicant_task, 1);
1437         if (task == NULL)
1438                 return -ENOMEM;
1439
1440         task->ifindex = connman_device_get_index(device);
1441         task->ifname = inet_index2name(task->ifindex);
1442
1443         if (task->ifname == NULL) {
1444                 g_free(task);
1445                 return -ENOMEM;
1446         }
1447
1448         task->device = connman_device_ref(device);
1449
1450         task->created = FALSE;
1451         task->noscan = FALSE;
1452         task->state = WPA_INVALID;
1453
1454         task_list = g_slist_append(task_list, task);
1455
1456         return create_interface(task);
1457 }
1458
1459 int supplicant_stop(struct connman_device *device)
1460 {
1461         int index = connman_device_get_index(device);
1462         struct supplicant_task *task;
1463
1464         DBG("device %p", device);
1465
1466         task = find_task_by_index(index);
1467         if (task == NULL)
1468                 return -ENODEV;
1469
1470         task_list = g_slist_remove(task_list, task);
1471
1472         disable_network(task);
1473
1474         remove_network(task);
1475
1476         return remove_interface(task);
1477 }
1478
1479 int supplicant_scan(struct connman_device *device)
1480 {
1481         int index = connman_device_get_index(device);
1482         struct supplicant_task *task;
1483         int err;
1484
1485         DBG("device %p", device);
1486
1487         task = find_task_by_index(index);
1488         if (task == NULL)
1489                 return -ENODEV;
1490
1491         switch (task->state) {
1492         case WPA_SCANNING:
1493                 return -EALREADY;
1494         case WPA_ASSOCIATING:
1495         case WPA_ASSOCIATED:
1496         case WPA_4WAY_HANDSHAKE:
1497         case WPA_GROUP_HANDSHAKE:
1498                 return -EBUSY;
1499         default:
1500                 break;
1501         }
1502
1503         err = initiate_scan(task);
1504
1505         return 0;
1506 }
1507
1508 int supplicant_connect(struct connman_network *network)
1509 {
1510         struct supplicant_task *task;
1511         const char *address, *security, *passphrase;
1512         const void *ssid;
1513         unsigned int ssid_len;
1514         int index;
1515
1516         DBG("network %p", network);
1517
1518         address = connman_network_get_string(network, "Address");
1519         security = connman_network_get_string(network, "WiFi.Security");
1520         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1521
1522         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1523
1524         DBG("address %s security %s passphrase %s",
1525                                         address, security, passphrase);
1526
1527         if (security == NULL && passphrase == NULL)
1528                 return -EINVAL;
1529
1530         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1531                 return -EINVAL;
1532
1533         index = connman_network_get_index(network);
1534
1535         task = find_task_by_index(index);
1536         if (task == NULL)
1537                 return -ENODEV;
1538
1539         task->network = connman_network_ref(network);
1540
1541         add_network(task);
1542
1543         select_network(task);
1544         disable_network(task);
1545
1546         set_network(task, ssid, ssid_len, address, security, passphrase);
1547
1548         enable_network(task);
1549
1550         connman_network_set_associating(task->network, TRUE);
1551
1552         return 0;
1553 }
1554
1555 int supplicant_disconnect(struct connman_network *network)
1556 {
1557         struct supplicant_task *task;
1558         int index;
1559
1560         DBG("network %p", network);
1561
1562         index = connman_network_get_index(network);
1563
1564         task = find_task_by_index(index);
1565         if (task == NULL)
1566                 return -ENODEV;
1567
1568         disable_network(task);
1569
1570         remove_network(task);
1571
1572         connman_network_set_connected(task->network, FALSE);
1573
1574         connman_network_unref(task->network);
1575
1576         return 0;
1577 }
1578
1579 static void supplicant_activate(DBusConnection *conn)
1580 {
1581         DBusMessage *message;
1582
1583         DBG("conn %p", conn);
1584
1585         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1586                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1587         if (message == NULL)
1588                 return;
1589
1590         dbus_message_set_no_reply(message, TRUE);
1591
1592         dbus_connection_send(conn, message, NULL);
1593
1594         dbus_message_unref(message);
1595 }
1596
1597 static GSList *driver_list = NULL;
1598
1599 static void supplicant_probe(DBusConnection *conn, void *user_data)
1600 {
1601         GSList *list;
1602
1603         DBG("conn %p", conn);
1604
1605         for (list = driver_list; list; list = list->next) {
1606                 struct supplicant_driver *driver = list->data;
1607
1608                 DBG("driver %p name %s", driver, driver->name);
1609
1610                 if (driver->probe)
1611                         driver->probe();
1612         }
1613 }
1614
1615 static void supplicant_remove(DBusConnection *conn, void *user_data)
1616 {
1617         GSList *list;
1618
1619         DBG("conn %p", conn);
1620
1621         for (list = driver_list; list; list = list->next) {
1622                 struct supplicant_driver *driver = list->data;
1623
1624                 DBG("driver %p name %s", driver, driver->name);
1625
1626                 if (driver->remove)
1627                         driver->remove();
1628         }
1629 }
1630
1631 static const char *supplicant_rule = "type=signal,"
1632                                 "interface=" SUPPLICANT_INTF ".Interface";
1633 static guint watch;
1634
1635 static int supplicant_create(void)
1636 {
1637         if (g_slist_length(driver_list) > 0)
1638                 return 0;
1639
1640         connection = connman_dbus_get_connection();
1641         if (connection == NULL)
1642                 return -EIO;
1643
1644         DBG("connection %p", connection);
1645
1646         if (dbus_connection_add_filter(connection,
1647                                 supplicant_filter, NULL, NULL) == FALSE) {
1648                 connection = connman_dbus_get_connection();
1649                 return -EIO;
1650         }
1651
1652         dbus_bus_add_match(connection, supplicant_rule, NULL);
1653         dbus_connection_flush(connection);
1654
1655         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1656                         supplicant_probe, supplicant_remove, NULL, NULL);
1657
1658         return 0;
1659 }
1660
1661 static void supplicant_destroy(void)
1662 {
1663         if (g_slist_length(driver_list) > 0)
1664                 return;
1665
1666         DBG("connection %p", connection);
1667
1668         if (watch > 0)
1669                 g_dbus_remove_watch(connection, watch);
1670
1671         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1672         dbus_connection_flush(connection);
1673
1674         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1675
1676         dbus_connection_unref(connection);
1677         connection = NULL;
1678 }
1679
1680 int supplicant_register(struct supplicant_driver *driver)
1681 {
1682         int err;
1683
1684         DBG("driver %p name %s", driver, driver->name);
1685
1686         err = supplicant_create();
1687         if (err < 0)
1688                 return err;
1689
1690         driver_list = g_slist_append(driver_list, driver);
1691
1692         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1693                 supplicant_probe(connection, NULL);
1694         else
1695                 supplicant_activate(connection);
1696
1697         return 0;
1698 }
1699
1700 void supplicant_unregister(struct supplicant_driver *driver)
1701 {
1702         DBG("driver %p name %s", driver, driver->name);
1703
1704         supplicant_remove(connection, NULL);
1705
1706         driver_list = g_slist_remove(driver_list, driver);
1707
1708         supplicant_destroy();
1709 }