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/option.h>
  37 #include <connman/inet.h>
  38 #include <connman/dbus.h>
  39 #include <connman/log.h>
  40
  41 #include "supplicant.h"
  42
  43 #define TIMEOUT 5000
  44
  45 #define IEEE80211_CAP_ESS       0x0001
  46 #define IEEE80211_CAP_IBSS      0x0002
  47 #define IEEE80211_CAP_PRIVACY   0x0010
  48
  49 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  50 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  51 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  52
  53 /* Taken from "WPA Supplicant - Common definitions" */
  54 enum supplicant_state {
  55         /**
  56          * WPA_DISCONNECTED - Disconnected state
  57          *
  58          * This state indicates that client is not associated, but is likely to
  59          * start looking for an access point. This state is entered when a
  60          * connection is lost.
  61          */
  62         WPA_DISCONNECTED,
  63
  64         /**
  65          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  66          *
  67          * This state is entered if there are no enabled networks in the
  68          * configuration. wpa_supplicant is not trying to associate with a new
  69          * network and external interaction (e.g., ctrl_iface call to add or
  70          * enable a network) is needed to start association.
  71          */
  72         WPA_INACTIVE,
  73
  74         /**
  75          * WPA_SCANNING - Scanning for a network
  76          *
  77          * This state is entered when wpa_supplicant starts scanning for a
  78          * network.
  79          */
  80         WPA_SCANNING,
  81
  82         /**
  83          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  84          *
  85          * This state is entered when wpa_supplicant has found a suitable BSS
  86          * to associate with and the driver is configured to try to associate
  87          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  88          * state is entered when the driver is configured to try to associate
  89          * with a network using the configured SSID and security policy.
  90          */
  91         WPA_ASSOCIATING,
  92
  93         /**
  94          * WPA_ASSOCIATED - Association completed
  95          *
  96          * This state is entered when the driver reports that association has
  97          * been successfully completed with an AP. If IEEE 802.1X is used
  98          * (with or without WPA/WPA2), wpa_supplicant remains in this state
  99          * until the IEEE 802.1X/EAPOL authentication has been completed.
 100          */
 101         WPA_ASSOCIATED,
 102
 103         /**
 104          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 105          *
 106          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 107          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 108          * frame after association. In case of WPA-EAP, this state is entered
 109          * when the IEEE 802.1X/EAPOL authentication has been completed.
 110          */
 111         WPA_4WAY_HANDSHAKE,
 112
 113         /**
 114          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 115          *
 116          * This state is entered when 4-Way Key Handshake has been completed
 117          * (i.e., when the supplicant sends out message 4/4) and when Group
 118          * Key rekeying is started by the AP (i.e., when supplicant receives
 119          * message 1/2).
 120          */
 121         WPA_GROUP_HANDSHAKE,
 122
 123         /**
 124          * WPA_COMPLETED - All authentication completed
 125          *
 126          * This state is entered when the full authentication process is
 127          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 128          * successfully completed. With WPA, this state is entered after the
 129          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 130          * completed after dynamic keys are received (or if not used, after
 131          * the EAP authentication has been completed). With static WEP keys and
 132          * plaintext connections, this state is entered when an association
 133          * has been completed.
 134          *
 135          * This state indicates that the supplicant has completed its
 136          * processing for the association phase and that data connection is
 137          * fully configured.
 138          */
 139         WPA_COMPLETED,
 140
 141         /**
 142          * WPA_INVALID - Invalid state (parsing error)
 143          *
 144          * This state is returned if the string input is invalid. It is not
 145          * an official wpa_supplicant state.
 146          */
 147         WPA_INVALID,
 148 };
 149
 150 struct supplicant_result {
 151         char *path;
 152         char *name;
 153         char *addr;
 154         unsigned char *ssid;
 155         unsigned int ssid_len;
 156         dbus_uint16_t capabilities;
 157         gboolean adhoc;
 158         gboolean has_wep;
 159         gboolean has_wpa;
 160         gboolean has_rsn;
 161         gboolean has_wps;
 162         dbus_int32_t frequency;
 163         dbus_int32_t quality;
 164         dbus_int32_t noise;
 165         dbus_int32_t level;
 166         dbus_int32_t maxrate;
 167 };
 168
 169 struct supplicant_task {
 170         int ifindex;
 171         char *ifname;
 172         struct connman_device *device;
 173         struct connman_network *network;
 174         char *path;
 175         char *netpath;
 176         gboolean created;
 177         enum supplicant_state state;
 178         gboolean noscan;
 179         GSList *scan_results;
 180 };
 181
 182 static GSList *task_list = NULL;
 183
 184 static DBusConnection *connection;
 185
 186 static void free_task(struct supplicant_task *task)
 187 {
 188         DBG("task %p", task);
 189
 190         g_free(task->ifname);
 191         g_free(task->path);
 192         g_free(task);
 193 }
 194
 195 static struct supplicant_task *find_task_by_index(int index)
 196 {
 197         GSList *list;
 198
 199         for (list = task_list; list; list = list->next) {
 200                 struct supplicant_task *task = list->data;
 201
 202                 if (task->ifindex == index)
 203                         return task;
 204         }
 205
 206         return NULL;
 207 }
 208
 209 static struct supplicant_task *find_task_by_path(const char *path)
 210 {
 211         GSList *list;
 212
 213         for (list = task_list; list; list = list->next) {
 214                 struct supplicant_task *task = list->data;
 215
 216                 if (g_str_equal(task->path, path) == TRUE)
 217                         return task;
 218         }
 219
 220         return NULL;
 221 }
 222
 223 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 224 {
 225         struct supplicant_task *task = user_data;
 226         DBusMessage *reply;
 227         DBusError error;
 228         const char *path;
 229
 230         DBG("task %p", task);
 231
 232         reply = dbus_pending_call_steal_reply(call);
 233         if (reply == NULL)
 234                 return;
 235
 236         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 237                 goto done;
 238
 239         dbus_error_init(&error);
 240
 241         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 242                                                 DBUS_TYPE_INVALID) == FALSE) {
 243                 if (dbus_error_is_set(&error) == TRUE) {
 244                         connman_error("%s", error.message);
 245                         dbus_error_free(&error);
 246                 } else
 247                         connman_error("Wrong arguments for add interface");
 248                 goto done;
 249         }
 250
 251         DBG("path %s", path);
 252
 253         task->path = g_strdup(path);
 254         task->created = TRUE;
 255
 256         connman_device_set_powered(task->device, TRUE);
 257
 258 done:
 259         dbus_message_unref(reply);
 260 }
 261
 262 static int add_interface(struct supplicant_task *task)
 263 {
 264         const char *driver = connman_option_get_string("wifi");
 265         DBusMessage *message;
 266         DBusMessageIter array, dict;
 267         DBusPendingCall *call;
 268
 269         DBG("task %p", task);
 270
 271         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 272                                         SUPPLICANT_INTF, "addInterface");
 273         if (message == NULL)
 274                 return -ENOMEM;
 275
 276         dbus_message_iter_init_append(message, &array);
 277
 278         dbus_message_iter_append_basic(&array,
 279                                         DBUS_TYPE_STRING, &task->ifname);
 280
 281         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 282                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 283                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 284                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 285
 286         connman_dbus_dict_append_variant(&dict, "driver",
 287                                                 DBUS_TYPE_STRING, &driver);
 288
 289         dbus_message_iter_close_container(&array, &dict);
 290
 291         if (dbus_connection_send_with_reply(connection, message,
 292                                                 &call, TIMEOUT) == FALSE) {
 293                 connman_error("Failed to add interface");
 294                 dbus_message_unref(message);
 295                 return -EIO;
 296         }
 297
 298         if (call == NULL) {
 299                 connman_error("D-Bus connection not available");
 300                 dbus_message_unref(message);
 301                 return -EIO;
 302         }
 303
 304         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 305
 306         dbus_message_unref(message);
 307
 308         return -EINPROGRESS;
 309 }
 310
 311 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 312 {
 313         struct supplicant_task *task = user_data;
 314         DBusMessage *reply;
 315         DBusError error;
 316         const char *path;
 317
 318         DBG("task %p", task);
 319
 320         reply = dbus_pending_call_steal_reply(call);
 321         if (reply == NULL)
 322                 return;
 323
 324         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 325                 add_interface(task);
 326                 goto done;
 327         }
 328
 329         dbus_error_init(&error);
 330
 331         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 332                                                 DBUS_TYPE_INVALID) == FALSE) {
 333                 if (dbus_error_is_set(&error) == TRUE) {
 334                         connman_error("%s", error.message);
 335                         dbus_error_free(&error);
 336                 } else
 337                         connman_error("Wrong arguments for get interface");
 338                 goto done;
 339         }
 340
 341         DBG("path %s", path);
 342
 343         task->path = g_strdup(path);
 344         task->created = FALSE;
 345
 346         connman_device_set_powered(task->device, TRUE);
 347
 348 done:
 349         dbus_message_unref(reply);
 350 }
 351
 352 static int create_interface(struct supplicant_task *task)
 353 {
 354         DBusMessage *message;
 355         DBusPendingCall *call;
 356
 357         DBG("task %p", task);
 358
 359         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 360                                         SUPPLICANT_INTF, "getInterface");
 361         if (message == NULL)
 362                 return -ENOMEM;
 363
 364         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 365                                                         DBUS_TYPE_INVALID);
 366
 367         if (dbus_connection_send_with_reply(connection, message,
 368                                                 &call, TIMEOUT) == FALSE) {
 369                 connman_error("Failed to get interface");
 370                 dbus_message_unref(message);
 371                 return -EIO;
 372         }
 373
 374         if (call == NULL) {
 375                 connman_error("D-Bus connection not available");
 376                 dbus_message_unref(message);
 377                 return -EIO;
 378         }
 379
 380         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 381
 382         dbus_message_unref(message);
 383
 384         return -EINPROGRESS;
 385 }
 386
 387 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 388 {
 389         struct supplicant_task *task = user_data;
 390         DBusMessage *reply;
 391
 392         DBG("task %p", task);
 393
 394         reply = dbus_pending_call_steal_reply(call);
 395
 396         connman_device_set_powered(task->device, FALSE);
 397
 398         connman_device_unref(task->device);
 399
 400         connman_inet_ifdown(task->ifindex);
 401
 402         free_task(task);
 403
 404         dbus_message_unref(reply);
 405 }
 406
 407 static int remove_interface(struct supplicant_task *task)
 408 {
 409         DBusMessage *message;
 410         DBusPendingCall *call;
 411
 412         DBG("task %p", task);
 413
 414         if (task->created == FALSE) {
 415                 connman_device_set_powered(task->device, FALSE);
 416                 return 0;
 417         }
 418
 419         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 420                                         SUPPLICANT_INTF, "removeInterface");
 421         if (message == NULL)
 422                 return -ENOMEM;
 423
 424         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 425                                                         DBUS_TYPE_INVALID);
 426
 427         if (dbus_connection_send_with_reply(connection, message,
 428                                                 &call, TIMEOUT) == FALSE) {
 429                 connman_error("Failed to remove interface");
 430                 dbus_message_unref(message);
 431                 return -EIO;
 432         }
 433
 434         if (call == NULL) {
 435                 connman_error("D-Bus connection not available");
 436                 dbus_message_unref(message);
 437                 return -EIO;
 438         }
 439
 440         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 441
 442         dbus_message_unref(message);
 443
 444         return -EINPROGRESS;
 445 }
 446
 447 #if 0
 448 static int set_ap_scan(struct supplicant_task *task)
 449 {
 450         DBusMessage *message, *reply;
 451         DBusError error;
 452         guint32 ap_scan = 1;
 453
 454         DBG("task %p", task);
 455
 456         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 457                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 458         if (message == NULL)
 459                 return -ENOMEM;
 460
 461         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 462                                                         DBUS_TYPE_INVALID);
 463
 464         dbus_error_init(&error);
 465
 466         reply = dbus_connection_send_with_reply_and_block(connection,
 467                                                         message, -1, &error);
 468         if (reply == NULL) {
 469                 if (dbus_error_is_set(&error) == TRUE) {
 470                         connman_error("%s", error.message);
 471                         dbus_error_free(&error);
 472                 } else
 473                         connman_error("Failed to set AP scan");
 474                 dbus_message_unref(message);
 475                 return -EIO;
 476         }
 477
 478         dbus_message_unref(message);
 479
 480         dbus_message_unref(reply);
 481
 482         return 0;
 483 }
 484 #endif
 485
 486 static int add_network(struct supplicant_task *task)
 487 {
 488         DBusMessage *message, *reply;
 489         DBusError error;
 490         const char *path;
 491
 492         DBG("task %p", task);
 493
 494         if (task->netpath != NULL)
 495                 return -EALREADY;
 496
 497         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 498                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 499         if (message == NULL)
 500                 return -ENOMEM;
 501
 502         dbus_error_init(&error);
 503
 504         reply = dbus_connection_send_with_reply_and_block(connection,
 505                                                         message, -1, &error);
 506         if (reply == NULL) {
 507                 if (dbus_error_is_set(&error) == TRUE) {
 508                         connman_error("%s", error.message);
 509                         dbus_error_free(&error);
 510                 } else
 511                         connman_error("Failed to add network");
 512                 dbus_message_unref(message);
 513                 return -EIO;
 514         }
 515
 516         dbus_message_unref(message);
 517
 518         dbus_error_init(&error);
 519
 520         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 521                                                 DBUS_TYPE_INVALID) == FALSE) {
 522                 if (dbus_error_is_set(&error) == TRUE) {
 523                         connman_error("%s", error.message);
 524                         dbus_error_free(&error);
 525                 } else
 526                         connman_error("Wrong arguments for network");
 527                 dbus_message_unref(reply);
 528                 return -EIO;
 529         }
 530
 531         DBG("path %s", path);
 532
 533         task->netpath = g_strdup(path);
 534
 535         dbus_message_unref(reply);
 536
 537         return 0;
 538 }
 539
 540 static int remove_network(struct supplicant_task *task)
 541 {
 542         DBusMessage *message, *reply;
 543         DBusError error;
 544
 545         DBG("task %p", task);
 546
 547         if (task->netpath == NULL)
 548                 return -EINVAL;
 549
 550         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 551                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 552         if (message == NULL)
 553                 return -ENOMEM;
 554
 555         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 556                                                         DBUS_TYPE_INVALID);
 557
 558         dbus_error_init(&error);
 559
 560         reply = dbus_connection_send_with_reply_and_block(connection,
 561                                                         message, -1, &error);
 562         if (reply == NULL) {
 563                 if (dbus_error_is_set(&error) == TRUE) {
 564                         connman_error("%s", error.message);
 565                         dbus_error_free(&error);
 566                 } else
 567                         connman_error("Failed to remove network");
 568                 dbus_message_unref(message);
 569                 return -EIO;
 570         }
 571
 572         dbus_message_unref(message);
 573
 574         dbus_message_unref(reply);
 575
 576         g_free(task->netpath);
 577         task->netpath = NULL;
 578
 579         return 0;
 580 }
 581
 582 static int select_network(struct supplicant_task *task)
 583 {
 584         DBusMessage *message, *reply;
 585         DBusError error;
 586
 587         DBG("task %p", task);
 588
 589         if (task->netpath == NULL)
 590                 return -EINVAL;
 591
 592         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 593                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 594         if (message == NULL)
 595                 return -ENOMEM;
 596
 597         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 598                                                         DBUS_TYPE_INVALID);
 599
 600         dbus_error_init(&error);
 601
 602         reply = dbus_connection_send_with_reply_and_block(connection,
 603                                                         message, -1, &error);
 604         if (reply == NULL) {
 605                 if (dbus_error_is_set(&error) == TRUE) {
 606                         connman_error("%s", error.message);
 607                         dbus_error_free(&error);
 608                 } else
 609                         connman_error("Failed to select network");
 610                 dbus_message_unref(message);
 611                 return -EIO;
 612         }
 613
 614         dbus_message_unref(message);
 615
 616         dbus_message_unref(reply);
 617
 618         return 0;
 619 }
 620
 621 static int enable_network(struct supplicant_task *task)
 622 {
 623         DBusMessage *message, *reply;
 624         DBusError error;
 625
 626         DBG("task %p", task);
 627
 628         if (task->netpath == NULL)
 629                 return -EINVAL;
 630
 631         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 632                                         SUPPLICANT_INTF ".Network", "enable");
 633         if (message == NULL)
 634                 return -ENOMEM;
 635
 636         dbus_error_init(&error);
 637
 638         reply = dbus_connection_send_with_reply_and_block(connection,
 639                                                         message, -1, &error);
 640         if (reply == NULL) {
 641                 if (dbus_error_is_set(&error) == TRUE) {
 642                         connman_error("%s", error.message);
 643                         dbus_error_free(&error);
 644                 } else
 645                         connman_error("Failed to enable network");
 646                 dbus_message_unref(message);
 647                 return -EIO;
 648         }
 649
 650         dbus_message_unref(message);
 651
 652         dbus_message_unref(reply);
 653
 654         return 0;
 655 }
 656
 657 static int disable_network(struct supplicant_task *task)
 658 {
 659         DBusMessage *message, *reply;
 660         DBusError error;
 661
 662         DBG("task %p", task);
 663
 664         if (task->netpath == NULL)
 665                 return -EINVAL;
 666
 667         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 668                                         SUPPLICANT_INTF ".Network", "disable");
 669         if (message == NULL)
 670                 return -ENOMEM;
 671
 672         dbus_error_init(&error);
 673
 674         reply = dbus_connection_send_with_reply_and_block(connection,
 675                                                         message, -1, &error);
 676         if (reply == NULL) {
 677                 if (dbus_error_is_set(&error) == TRUE) {
 678                         connman_error("%s", error.message);
 679                         dbus_error_free(&error);
 680                 } else
 681                         connman_error("Failed to disable network");
 682                 dbus_message_unref(message);
 683                 return -EIO;
 684         }
 685
 686         dbus_message_unref(message);
 687
 688         dbus_message_unref(reply);
 689
 690         return 0;
 691 }
 692
 693 static int set_network(struct supplicant_task *task,
 694                                 const unsigned char *network, int len,
 695                                 const char *address, const char *security,
 696                                                         const char *passphrase)
 697 {
 698         DBusMessage *message, *reply;
 699         DBusMessageIter array, dict;
 700         DBusError error;
 701
 702         DBG("task %p", task);
 703
 704         if (task->netpath == NULL)
 705                 return -EINVAL;
 706
 707         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 708                                         SUPPLICANT_INTF ".Network", "set");
 709         if (message == NULL)
 710                 return -ENOMEM;
 711
 712         dbus_message_iter_init_append(message, &array);
 713
 714         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 715                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 716                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 717                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 718
 719         if (address == NULL) {
 720                 dbus_uint32_t scan_ssid = 1;
 721                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 722                                                 DBUS_TYPE_UINT32, &scan_ssid);
 723         } else
 724                 connman_dbus_dict_append_variant(&dict, "bssid",
 725                                                 DBUS_TYPE_STRING, &address);
 726
 727         connman_dbus_dict_append_array(&dict, "ssid",
 728                                         DBUS_TYPE_BYTE, &network, len);
 729
 730         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 731                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 732                 const char *key_mgmt = "WPA-PSK";
 733                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 734                                                 DBUS_TYPE_STRING, &key_mgmt);
 735
 736                 if (passphrase && strlen(passphrase) > 0)
 737                         connman_dbus_dict_append_variant(&dict, "psk",
 738                                                 DBUS_TYPE_STRING, &passphrase);
 739         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 740                 const char *key_mgmt = "NONE", *index = "0";
 741                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 742                                                 DBUS_TYPE_STRING, &key_mgmt);
 743
 744                 if (passphrase) {
 745                         int size = strlen(passphrase);
 746                         if (size == 10 || size == 26) {
 747                                 unsigned char *key = malloc(13);
 748                                 char tmp[3];
 749                                 int i;
 750                                 memset(tmp, 0, sizeof(tmp));
 751                                 if (key == NULL)
 752                                         size = 0;
 753                                 for (i = 0; i < size / 2; i++) {
 754                                         memcpy(tmp, passphrase + (i * 2), 2);
 755                                         key[i] = (unsigned char) strtol(tmp,
 756                                                                 NULL, 16);
 757                                 }
 758                                 connman_dbus_dict_append_array(&dict,
 759                                                 "wep_key0", DBUS_TYPE_BYTE,
 760                                                         &key, size / 2);
 761                                 free(key);
 762                         } else
 763                                 connman_dbus_dict_append_variant(&dict,
 764                                                 "wep_key0", DBUS_TYPE_STRING,
 765                                                                 &passphrase);
 766                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 767                                                 DBUS_TYPE_STRING, &index);
 768                 }
 769         } else {
 770                 const char *key_mgmt = "NONE";
 771                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 772                                                 DBUS_TYPE_STRING, &key_mgmt);
 773         }
 774
 775         dbus_message_iter_close_container(&array, &dict);
 776
 777         dbus_error_init(&error);
 778
 779         reply = dbus_connection_send_with_reply_and_block(connection,
 780                                                         message, -1, &error);
 781         if (reply == NULL) {
 782                 if (dbus_error_is_set(&error) == TRUE) {
 783                         connman_error("%s", error.message);
 784                         dbus_error_free(&error);
 785                 } else
 786                         connman_error("Failed to set network options");
 787                 dbus_message_unref(message);
 788                 return -EIO;
 789         }
 790
 791         dbus_message_unref(message);
 792
 793         dbus_message_unref(reply);
 794
 795         return 0;
 796 }
 797
 798 static int initiate_scan(struct supplicant_task *task)
 799 {
 800         DBusMessage *message;
 801         DBusPendingCall *call;
 802
 803         DBG("task %p", task);
 804
 805         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 806                                         SUPPLICANT_INTF ".Interface", "scan");
 807         if (message == NULL)
 808                 return -ENOMEM;
 809
 810         if (dbus_connection_send_with_reply(connection, message,
 811                                                 &call, TIMEOUT) == FALSE) {
 812                 connman_error("Failed to initiate scan");
 813                 dbus_message_unref(message);
 814                 return -EIO;
 815         }
 816
 817         dbus_message_unref(message);
 818
 819         return 0;
 820 }
 821
 822 static struct {
 823         char *name;
 824         char *value;
 825 } special_ssid[] = {
 826         { "<hidden>", "hidden"  },
 827         { "default",  "linksys" },
 828         { "wireless"  },
 829         { "linksys"   },
 830         { "netgear"   },
 831         { "dlink"     },
 832         { "2wire"     },
 833         { "compaq"    },
 834         { "tsunami"   },
 835         { "comcomcom", "3com"     },
 836         { "3Com",      "3com"     },
 837         { "Symbol",    "symbol"   },
 838         { "Wireless" , "wireless" },
 839         { "WLAN",      "wlan"     },
 840         { }
 841 };
 842
 843 static char *build_group(const char *addr, const char *name,
 844                         const unsigned char *ssid, unsigned int ssid_len,
 845                                         const char *mode, const char *security)
 846 {
 847         GString *str;
 848         unsigned int i;
 849
 850         if (addr == NULL)
 851                 return NULL;
 852
 853         str = g_string_sized_new((ssid_len * 2) + 24);
 854         if (str == NULL)
 855                 return NULL;
 856
 857         for (i = 0; special_ssid[i].name; i++) {
 858                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 859                         if (special_ssid[i].value == NULL)
 860                                 g_string_append_printf(str, "%s_%s",
 861                                                                 name, addr);
 862                         else
 863                                 g_string_append_printf(str, "%s_%s",
 864                                                 special_ssid[i].value, addr);
 865                         goto done;
 866                 }
 867         }
 868
 869         if (ssid_len > 0 && ssid[0] != '\0') {
 870                 for (i = 0; i < ssid_len; i++)
 871                         g_string_append_printf(str, "%02x", ssid[i]);
 872         } else
 873                 g_string_append_printf(str, "hidden_%s", addr);
 874
 875 done:
 876         g_string_append_printf(str, "_%s_%s", mode, security);
 877
 878         return g_string_free(str, FALSE);
 879 }
 880
 881 static void extract_addr(DBusMessageIter *value,
 882                                         struct supplicant_result *result)
 883 {
 884         DBusMessageIter array;
 885         struct ether_addr *eth;
 886         unsigned char *addr;
 887         int addr_len;
 888
 889         dbus_message_iter_recurse(value, &array);
 890         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 891
 892         if (addr_len != 6)
 893                 return;
 894
 895         eth = (void *) addr;
 896
 897         result->addr = g_try_malloc0(18);
 898         if (result->addr == NULL)
 899                 return;
 900
 901         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 902                                                 eth->ether_addr_octet[0],
 903                                                 eth->ether_addr_octet[1],
 904                                                 eth->ether_addr_octet[2],
 905                                                 eth->ether_addr_octet[3],
 906                                                 eth->ether_addr_octet[4],
 907                                                 eth->ether_addr_octet[5]);
 908
 909         result->path = g_try_malloc0(18);
 910         if (result->path == NULL)
 911                 return;
 912
 913         snprintf(result->path, 18, "%02x%02x%02x%02x%02x%02x",
 914                                                 eth->ether_addr_octet[0],
 915                                                 eth->ether_addr_octet[1],
 916                                                 eth->ether_addr_octet[2],
 917                                                 eth->ether_addr_octet[3],
 918                                                 eth->ether_addr_octet[4],
 919                                                 eth->ether_addr_octet[5]);
 920 }
 921
 922 static void extract_ssid(DBusMessageIter *value,
 923                                         struct supplicant_result *result)
 924 {
 925         DBusMessageIter array;
 926         unsigned char *ssid;
 927         int ssid_len;
 928
 929         dbus_message_iter_recurse(value, &array);
 930         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 931
 932         if (ssid_len < 1)
 933                 return;
 934
 935         result->ssid = g_try_malloc(ssid_len);
 936         if (result->ssid == NULL)
 937                 return;
 938
 939         memcpy(result->ssid, ssid, ssid_len);
 940         result->ssid_len = ssid_len;
 941
 942         result->name = g_try_malloc0(ssid_len + 1);
 943         if (result->name == NULL)
 944                 return;
 945
 946         memcpy(result->name, ssid, ssid_len);
 947 }
 948
 949 static void extract_wpaie(DBusMessageIter *value,
 950                                         struct supplicant_result *result)
 951 {
 952         DBusMessageIter array;
 953         unsigned char *ie;
 954         int ie_len;
 955
 956         dbus_message_iter_recurse(value, &array);
 957         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 958
 959         if (ie_len > 0)
 960                 result->has_wpa = TRUE;
 961 }
 962
 963 static void extract_rsnie(DBusMessageIter *value,
 964                                         struct supplicant_result *result)
 965 {
 966         DBusMessageIter array;
 967         unsigned char *ie;
 968         int ie_len;
 969
 970         dbus_message_iter_recurse(value, &array);
 971         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 972
 973         if (ie_len > 0)
 974                 result->has_rsn = TRUE;
 975 }
 976
 977 static void extract_wpsie(DBusMessageIter *value,
 978                                         struct supplicant_result *result)
 979 {
 980         DBusMessageIter array;
 981         unsigned char *ie;
 982         int ie_len;
 983
 984         dbus_message_iter_recurse(value, &array);
 985         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 986
 987         if (ie_len > 0)
 988                 result->has_wps = TRUE;
 989 }
 990
 991 static void extract_capabilites(DBusMessageIter *value,
 992                                         struct supplicant_result *result)
 993 {
 994         dbus_message_iter_get_basic(value, &result->capabilities);
 995
 996         if (result->capabilities & IEEE80211_CAP_ESS)
 997                 result->adhoc = FALSE;
 998         else if (result->capabilities & IEEE80211_CAP_IBSS)
 999                 result->adhoc = TRUE;
1000
1001         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1002                 result->has_wep = TRUE;
1003 }
1004
1005 static unsigned char calculate_strength(struct supplicant_result *result)
1006 {
1007         if (result->quality < 0) {
1008                 unsigned char strength;
1009
1010                 if (result->level > 0)
1011                         strength = 100 - result->level;
1012                 else
1013                         strength = 120 + result->level;
1014
1015                 if (strength > 100)
1016                         strength = 100;
1017
1018                 return strength;
1019         }
1020
1021         return result->quality;
1022 }
1023
1024 static unsigned short calculate_channel(struct supplicant_result *result)
1025 {
1026         if (result->frequency < 0)
1027                 return 0;
1028
1029         return (result->frequency - 2407) / 5;
1030 }
1031
1032 static void get_properties(struct supplicant_task *task);
1033
1034 static void properties_reply(DBusPendingCall *call, void *user_data)
1035 {
1036         struct supplicant_task *task = user_data;
1037         struct supplicant_result result;
1038         struct connman_network *network;
1039         DBusMessage *reply;
1040         DBusMessageIter array, dict;
1041         unsigned char strength;
1042         unsigned short channel, frequency;
1043         const char *mode, *security;
1044         char *group;
1045
1046         DBG("task %p", task);
1047
1048         reply = dbus_pending_call_steal_reply(call);
1049         if (reply == NULL) {
1050                 get_properties(task);
1051                 return;
1052         }
1053
1054         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1055                 dbus_message_unref(reply);
1056                 get_properties(task);
1057                 return;
1058         }
1059
1060         memset(&result, 0, sizeof(result));
1061         result.frequency = -1;
1062         result.quality = -1;
1063         result.level = 0;
1064         result.noise = 0;
1065
1066         dbus_message_iter_init(reply, &array);
1067
1068         dbus_message_iter_recurse(&array, &dict);
1069
1070         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1071                 DBusMessageIter entry, value;
1072                 const char *key;
1073
1074                 dbus_message_iter_recurse(&dict, &entry);
1075                 dbus_message_iter_get_basic(&entry, &key);
1076
1077                 dbus_message_iter_next(&entry);
1078
1079                 dbus_message_iter_recurse(&entry, &value);
1080
1081                 //type = dbus_message_iter_get_arg_type(&value);
1082                 //dbus_message_iter_get_basic(&value, &val);
1083
1084                 /*
1085                  * bssid        : a (97)
1086                  * ssid         : a (97)
1087                  * wpaie        : a (97)
1088                  * rsnie        : a (97)
1089                  * wpsie        : a (97)
1090                  * frequency    : i (105)
1091                  * capabilities : q (113)
1092                  * quality      : i (105)
1093                  * noise        : i (105)
1094                  * level        : i (105)
1095                  * maxrate      : i (105)
1096                  */
1097
1098                 if (g_str_equal(key, "bssid") == TRUE)
1099                         extract_addr(&value, &result);
1100                 else if (g_str_equal(key, "ssid") == TRUE)
1101                         extract_ssid(&value, &result);
1102                 else if (g_str_equal(key, "wpaie") == TRUE)
1103                         extract_wpaie(&value, &result);
1104                 else if (g_str_equal(key, "rsnie") == TRUE)
1105                         extract_rsnie(&value, &result);
1106                 else if (g_str_equal(key, "wpsie") == TRUE)
1107                         extract_wpsie(&value, &result);
1108                 else if (g_str_equal(key, "capabilities") == TRUE)
1109                         extract_capabilites(&value, &result);
1110                 else if (g_str_equal(key, "frequency") == TRUE)
1111                         dbus_message_iter_get_basic(&value, &result.frequency);
1112                 else if (g_str_equal(key, "quality") == TRUE)
1113                         dbus_message_iter_get_basic(&value, &result.quality);
1114                 else if (g_str_equal(key, "noise") == TRUE)
1115                         dbus_message_iter_get_basic(&value, &result.noise);
1116                 else if (g_str_equal(key, "level") == TRUE)
1117                         dbus_message_iter_get_basic(&value, &result.level);
1118                 else if (g_str_equal(key, "maxrate") == TRUE)
1119                         dbus_message_iter_get_basic(&value, &result.maxrate);
1120
1121                 dbus_message_iter_next(&dict);
1122         }
1123
1124         if (result.path == NULL)
1125                 goto done;
1126
1127         if (result.path[0] == '\0')
1128                 goto done;
1129
1130         if (result.frequency > 0 && result.frequency < 14)
1131                 result.frequency = 2407 + (5 * result.frequency);
1132         else if (result.frequency == 14)
1133                 result.frequency = 2484;
1134
1135         strength = calculate_strength(&result);
1136         channel  = calculate_channel(&result);
1137
1138         frequency = (result.frequency < 0) ? 0 : result.frequency;
1139
1140         if (result.has_rsn == TRUE)
1141                 security = "rsn";
1142         else if (result.has_wpa == TRUE)
1143                 security = "wpa";
1144         else if (result.has_wep == TRUE)
1145                 security = "wep";
1146         else
1147                 security = "none";
1148
1149         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1150
1151         group = build_group(result.path, result.name,
1152                                         result.ssid, result.ssid_len,
1153                                                         mode, security);
1154
1155         network = connman_device_get_network(task->device, result.path);
1156         if (network == NULL) {
1157                 int index;
1158
1159                 network = connman_network_create(result.path,
1160                                                 CONNMAN_NETWORK_TYPE_WIFI);
1161                 if (network == NULL)
1162                         goto done;
1163
1164                 index = connman_device_get_index(task->device);
1165                 connman_network_set_index(network, index);
1166
1167                 connman_network_set_protocol(network,
1168                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1169
1170                 connman_network_set_string(network, "Address", result.addr);
1171
1172                 if (connman_device_add_network(task->device, network) < 0) {
1173                         connman_network_unref(network);
1174                         goto done;
1175                 }
1176         }
1177
1178         if (result.name != NULL && result.name[0] != '\0')
1179                 connman_network_set_name(network, result.name);
1180
1181         connman_network_set_blob(network, "WiFi.SSID",
1182                                                 result.ssid, result.ssid_len);
1183
1184         connman_network_set_string(network, "WiFi.Mode", mode);
1185
1186         DBG("%s (%s %s) strength %d (%s)",
1187                                 result.name, mode, security, strength,
1188                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1189
1190         connman_network_set_available(network, TRUE);
1191         connman_network_set_strength(network, strength);
1192
1193         connman_network_set_uint16(network, "Frequency", frequency);
1194         connman_network_set_uint16(network, "WiFi.Channel", channel);
1195         connman_network_set_string(network, "WiFi.Security", security);
1196
1197         connman_network_set_group(network, group);
1198
1199         g_free(group);
1200
1201 done:
1202         g_free(result.path);
1203         g_free(result.addr);
1204         g_free(result.name);
1205         g_free(result.ssid);
1206
1207         dbus_message_unref(reply);
1208
1209         get_properties(task);
1210 }
1211
1212 static void get_properties(struct supplicant_task *task)
1213 {
1214         DBusMessage *message;
1215         DBusPendingCall *call;
1216         char *path;
1217
1218         path = g_slist_nth_data(task->scan_results, 0);
1219         if (path == NULL)
1220                 goto noscan;
1221
1222         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1223                                                 SUPPLICANT_INTF ".BSSID",
1224                                                                 "properties");
1225
1226         task->scan_results = g_slist_remove(task->scan_results, path);
1227         g_free(path);
1228
1229         if (message == NULL)
1230                 goto noscan;
1231
1232         if (dbus_connection_send_with_reply(connection, message,
1233                                                 &call, TIMEOUT) == FALSE) {
1234                 connman_error("Failed to get network properties");
1235                 dbus_message_unref(message);
1236                 goto noscan;
1237         }
1238
1239         if (call == NULL) {
1240                 connman_error("D-Bus connection not available");
1241                 dbus_message_unref(message);
1242                 goto noscan;
1243         }
1244
1245         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1246
1247         dbus_message_unref(message);
1248
1249         return;
1250
1251 noscan:
1252         if (task->noscan == FALSE)
1253                 connman_device_set_scanning(task->device, FALSE);
1254 }
1255
1256 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1257 {
1258         struct supplicant_task *task = user_data;
1259         DBusMessage *reply;
1260         DBusError error;
1261         char **results;
1262         int i, num_results;
1263
1264         DBG("task %p", task);
1265
1266         reply = dbus_pending_call_steal_reply(call);
1267         if (reply == NULL)
1268                 goto noscan;
1269
1270         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1271                 goto done;
1272
1273         dbus_error_init(&error);
1274
1275         if (dbus_message_get_args(reply, &error,
1276                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1277                                                 &results, &num_results,
1278                                                 DBUS_TYPE_INVALID) == FALSE) {
1279                 if (dbus_error_is_set(&error) == TRUE) {
1280                         connman_error("%s", error.message);
1281                         dbus_error_free(&error);
1282                 } else
1283                         connman_error("Wrong arguments for scan result");
1284                 goto done;
1285         }
1286
1287         if (num_results == 0)
1288                 goto done;
1289
1290         for (i = 0; i < num_results; i++) {
1291                 char *path = g_strdup(results[i]);
1292                 if (path == NULL)
1293                         continue;
1294
1295                 task->scan_results = g_slist_append(task->scan_results, path);
1296         }
1297
1298         g_strfreev(results);
1299
1300         dbus_message_unref(reply);
1301
1302         get_properties(task);
1303
1304         return;
1305
1306 done:
1307         dbus_message_unref(reply);
1308
1309 noscan:
1310         if (task->noscan == FALSE)
1311                 connman_device_set_scanning(task->device, FALSE);
1312 }
1313
1314 static void scan_results_available(struct supplicant_task *task)
1315 {
1316         DBusMessage *message;
1317         DBusPendingCall *call;
1318
1319         DBG("task %p", task);
1320
1321         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1322                                                 SUPPLICANT_INTF ".Interface",
1323                                                         "scanResults");
1324         if (message == NULL)
1325                 return;
1326
1327         if (dbus_connection_send_with_reply(connection, message,
1328                                                 &call, TIMEOUT) == FALSE) {
1329                 connman_error("Failed to request scan result");
1330                 goto done;
1331         }
1332
1333         if (task->noscan == FALSE)
1334                 connman_device_set_scanning(task->device, TRUE);
1335
1336         if (call == NULL) {
1337                 connman_error("D-Bus connection not available");
1338                 goto done;
1339         }
1340
1341         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1342
1343 done:
1344         dbus_message_unref(message);
1345 }
1346
1347 static enum supplicant_state string2state(const char *state)
1348 {
1349         if (g_str_equal(state, "INACTIVE") == TRUE)
1350                 return WPA_INACTIVE;
1351         else if (g_str_equal(state, "SCANNING") == TRUE)
1352                 return WPA_SCANNING;
1353         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1354                 return WPA_ASSOCIATING;
1355         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1356                 return WPA_ASSOCIATED;
1357         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1358                 return WPA_GROUP_HANDSHAKE;
1359         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1360                 return WPA_4WAY_HANDSHAKE;
1361         else if (g_str_equal(state, "COMPLETED") == TRUE)
1362                 return WPA_COMPLETED;
1363         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1364                 return WPA_DISCONNECTED;
1365         else
1366                 return WPA_INVALID;
1367 }
1368
1369 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1370 {
1371         DBusError error;
1372         const char *newstate, *oldstate;
1373         enum supplicant_state state;
1374
1375         dbus_error_init(&error);
1376
1377         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1378                                                 DBUS_TYPE_STRING, &oldstate,
1379                                                 DBUS_TYPE_INVALID) == FALSE) {
1380                 if (dbus_error_is_set(&error) == TRUE) {
1381                         connman_error("%s", error.message);
1382                         dbus_error_free(&error);
1383                 } else
1384                         connman_error("Wrong arguments for state change");
1385                 return;
1386         }
1387
1388         DBG("state %s ==> %s", oldstate, newstate);
1389
1390         state = string2state(newstate);
1391         if (state == WPA_INVALID)
1392                 return;
1393
1394         task->state = state;
1395
1396         switch (task->state) {
1397         case WPA_SCANNING:
1398                 task->noscan = TRUE;
1399                 connman_device_set_scanning(task->device, TRUE);
1400                 break;
1401         case WPA_ASSOCIATING:
1402         case WPA_ASSOCIATED:
1403         case WPA_4WAY_HANDSHAKE:
1404         case WPA_GROUP_HANDSHAKE:
1405                 task->noscan = TRUE;
1406                 break;
1407         case WPA_COMPLETED:
1408         case WPA_DISCONNECTED:
1409                 task->noscan = FALSE;
1410                 break;
1411         case WPA_INACTIVE:
1412                 task->noscan = FALSE;
1413                 connman_device_set_scanning(task->device, FALSE);
1414                 break;
1415         case WPA_INVALID:
1416                 break;
1417         }
1418
1419         if (task->network == NULL)
1420                 return;
1421
1422         switch (task->state) {
1423         case WPA_COMPLETED:
1424                 /* carrier on */
1425                 connman_network_set_connected(task->network, TRUE);
1426                 connman_device_set_scanning(task->device, FALSE);
1427                 break;
1428         case WPA_DISCONNECTED:
1429                 /* carrier off */
1430                 connman_network_set_connected(task->network, FALSE);
1431                 connman_device_set_scanning(task->device, FALSE);
1432                 break;
1433         case WPA_ASSOCIATING:
1434                 connman_network_set_associating(task->network, TRUE);
1435                 break;
1436         default:
1437                 connman_network_set_associating(task->network, FALSE);
1438                 break;
1439         }
1440 }
1441
1442 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1443                                                 DBusMessage *msg, void *data)
1444 {
1445         struct supplicant_task *task;
1446         const char *member, *path;
1447
1448         if (dbus_message_has_interface(msg,
1449                                 SUPPLICANT_INTF ".Interface") == FALSE)
1450                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1451
1452         member = dbus_message_get_member(msg);
1453         if (member == NULL)
1454                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1455
1456         path = dbus_message_get_path(msg);
1457         if (path == NULL)
1458                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1459
1460         task = find_task_by_path(path);
1461         if (task == NULL)
1462                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1463
1464         DBG("task %p member %s", task, member);
1465
1466         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1467                 scan_results_available(task);
1468         else if (g_str_equal(member, "StateChange") == TRUE)
1469                 state_change(task, msg);
1470
1471         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1472 }
1473
1474 int supplicant_start(struct connman_device *device)
1475 {
1476         struct supplicant_task *task;
1477
1478         DBG("device %p", device);
1479
1480         task = g_try_new0(struct supplicant_task, 1);
1481         if (task == NULL)
1482                 return -ENOMEM;
1483
1484         task->ifindex = connman_device_get_index(device);
1485         task->ifname = connman_inet_ifname(task->ifindex);
1486
1487         if (task->ifname == NULL) {
1488                 g_free(task);
1489                 return -ENOMEM;
1490         }
1491
1492         task->device = connman_device_ref(device);
1493
1494         task->created = FALSE;
1495         task->noscan = FALSE;
1496         task->state = WPA_INVALID;
1497
1498         task_list = g_slist_append(task_list, task);
1499
1500         return create_interface(task);
1501 }
1502
1503 int supplicant_stop(struct connman_device *device)
1504 {
1505         int index = connman_device_get_index(device);
1506         struct supplicant_task *task;
1507
1508         DBG("device %p", device);
1509
1510         task = find_task_by_index(index);
1511         if (task == NULL)
1512                 return -ENODEV;
1513
1514         task_list = g_slist_remove(task_list, task);
1515
1516         disable_network(task);
1517
1518         remove_network(task);
1519
1520         return remove_interface(task);
1521 }
1522
1523 int supplicant_scan(struct connman_device *device)
1524 {
1525         int index = connman_device_get_index(device);
1526         struct supplicant_task *task;
1527         int err;
1528
1529         DBG("device %p", device);
1530
1531         task = find_task_by_index(index);
1532         if (task == NULL)
1533                 return -ENODEV;
1534
1535         switch (task->state) {
1536         case WPA_SCANNING:
1537                 return -EALREADY;
1538         case WPA_ASSOCIATING:
1539         case WPA_ASSOCIATED:
1540         case WPA_4WAY_HANDSHAKE:
1541         case WPA_GROUP_HANDSHAKE:
1542                 return -EBUSY;
1543         default:
1544                 break;
1545         }
1546
1547         err = initiate_scan(task);
1548
1549         return 0;
1550 }
1551
1552 int supplicant_connect(struct connman_network *network)
1553 {
1554         struct supplicant_task *task;
1555         const char *address, *security, *passphrase;
1556         const void *ssid;
1557         unsigned int ssid_len;
1558         int index;
1559
1560         DBG("network %p", network);
1561
1562         address = connman_network_get_string(network, "Address");
1563         security = connman_network_get_string(network, "WiFi.Security");
1564         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1565
1566         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1567
1568         DBG("address %s security %s passphrase %s",
1569                                         address, security, passphrase);
1570
1571         if (security == NULL && passphrase == NULL)
1572                 return -EINVAL;
1573
1574         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1575                 return -EINVAL;
1576
1577         index = connman_network_get_index(network);
1578
1579         task = find_task_by_index(index);
1580         if (task == NULL)
1581                 return -ENODEV;
1582
1583         task->network = connman_network_ref(network);
1584
1585         add_network(task);
1586
1587         select_network(task);
1588         disable_network(task);
1589
1590         set_network(task, ssid, ssid_len, address, security, passphrase);
1591
1592         enable_network(task);
1593
1594         connman_network_set_associating(task->network, TRUE);
1595
1596         return 0;
1597 }
1598
1599 int supplicant_disconnect(struct connman_network *network)
1600 {
1601         struct supplicant_task *task;
1602         int index;
1603
1604         DBG("network %p", network);
1605
1606         index = connman_network_get_index(network);
1607
1608         task = find_task_by_index(index);
1609         if (task == NULL)
1610                 return -ENODEV;
1611
1612         disable_network(task);
1613
1614         remove_network(task);
1615
1616         connman_network_set_connected(task->network, FALSE);
1617
1618         connman_network_unref(task->network);
1619
1620         return 0;
1621 }
1622
1623 static void supplicant_activate(DBusConnection *conn)
1624 {
1625         DBusMessage *message;
1626
1627         DBG("conn %p", conn);
1628
1629         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1630                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1631         if (message == NULL)
1632                 return;
1633
1634         dbus_message_set_no_reply(message, TRUE);
1635
1636         dbus_connection_send(conn, message, NULL);
1637
1638         dbus_message_unref(message);
1639 }
1640
1641 static GSList *driver_list = NULL;
1642
1643 static void supplicant_probe(DBusConnection *conn, void *user_data)
1644 {
1645         GSList *list;
1646
1647         DBG("conn %p", conn);
1648
1649         for (list = driver_list; list; list = list->next) {
1650                 struct supplicant_driver *driver = list->data;
1651
1652                 DBG("driver %p name %s", driver, driver->name);
1653
1654                 if (driver->probe)
1655                         driver->probe();
1656         }
1657 }
1658
1659 static void supplicant_remove(DBusConnection *conn, void *user_data)
1660 {
1661         GSList *list;
1662
1663         DBG("conn %p", conn);
1664
1665         for (list = driver_list; list; list = list->next) {
1666                 struct supplicant_driver *driver = list->data;
1667
1668                 DBG("driver %p name %s", driver, driver->name);
1669
1670                 if (driver->remove)
1671                         driver->remove();
1672         }
1673 }
1674
1675 static const char *supplicant_rule = "type=signal,"
1676                                 "interface=" SUPPLICANT_INTF ".Interface";
1677 static guint watch;
1678
1679 static int supplicant_create(void)
1680 {
1681         if (g_slist_length(driver_list) > 0)
1682                 return 0;
1683
1684         connection = connman_dbus_get_connection();
1685         if (connection == NULL)
1686                 return -EIO;
1687
1688         DBG("connection %p", connection);
1689
1690         if (dbus_connection_add_filter(connection,
1691                                 supplicant_filter, NULL, NULL) == FALSE) {
1692                 connection = connman_dbus_get_connection();
1693                 return -EIO;
1694         }
1695
1696         dbus_bus_add_match(connection, supplicant_rule, NULL);
1697         dbus_connection_flush(connection);
1698
1699         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1700                         supplicant_probe, supplicant_remove, NULL, NULL);
1701
1702         return 0;
1703 }
1704
1705 static void supplicant_destroy(void)
1706 {
1707         if (g_slist_length(driver_list) > 0)
1708                 return;
1709
1710         DBG("connection %p", connection);
1711
1712         if (watch > 0)
1713                 g_dbus_remove_watch(connection, watch);
1714
1715         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1716         dbus_connection_flush(connection);
1717
1718         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1719
1720         dbus_connection_unref(connection);
1721         connection = NULL;
1722 }
1723
1724 int supplicant_register(struct supplicant_driver *driver)
1725 {
1726         int err;
1727
1728         DBG("driver %p name %s", driver, driver->name);
1729
1730         err = supplicant_create();
1731         if (err < 0)
1732                 return err;
1733
1734         driver_list = g_slist_append(driver_list, driver);
1735
1736         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1737                 supplicant_probe(connection, NULL);
1738         else
1739                 supplicant_activate(connection);
1740
1741         return 0;
1742 }
1743
1744 void supplicant_unregister(struct supplicant_driver *driver)
1745 {
1746         DBG("driver %p name %s", driver, driver->name);
1747
1748         supplicant_remove(connection, NULL);
1749
1750         driver_list = g_slist_remove(driver_list, driver);
1751
1752         supplicant_destroy();
1753 }