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