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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <net/ethernet.h>
  31
  32 #include <gdbus.h>
  33
  34 #define CONNMAN_API_SUBJECT_TO_CHANGE
  35 #include <connman/device.h>
  36 #include <connman/dbus.h>
  37 #include <connman/log.h>
  38
  39 #include "inet.h"
  40 #include "supplicant.h"
  41
  42 #define TIMEOUT 5000
  43
  44 #define IEEE80211_CAP_ESS       0x0001
  45 #define IEEE80211_CAP_IBSS      0x0002
  46 #define IEEE80211_CAP_PRIVACY   0x0010
  47
  48 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  49 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  50 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  51
  52 /* Taken from "WPA Supplicant - Common definitions" */
  53 enum supplicant_state {
  54         /**
  55          * WPA_DISCONNECTED - Disconnected state
  56          *
  57          * This state indicates that client is not associated, but is likely to
  58          * start looking for an access point. This state is entered when a
  59          * connection is lost.
  60          */
  61         WPA_DISCONNECTED,
  62
  63         /**
  64          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  65          *
  66          * This state is entered if there are no enabled networks in the
  67          * configuration. wpa_supplicant is not trying to associate with a new
  68          * network and external interaction (e.g., ctrl_iface call to add or
  69          * enable a network) is needed to start association.
  70          */
  71         WPA_INACTIVE,
  72
  73         /**
  74          * WPA_SCANNING - Scanning for a network
  75          *
  76          * This state is entered when wpa_supplicant starts scanning for a
  77          * network.
  78          */
  79         WPA_SCANNING,
  80
  81         /**
  82          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  83          *
  84          * This state is entered when wpa_supplicant has found a suitable BSS
  85          * to associate with and the driver is configured to try to associate
  86          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  87          * state is entered when the driver is configured to try to associate
  88          * with a network using the configured SSID and security policy.
  89          */
  90         WPA_ASSOCIATING,
  91
  92         /**
  93          * WPA_ASSOCIATED - Association completed
  94          *
  95          * This state is entered when the driver reports that association has
  96          * been successfully completed with an AP. If IEEE 802.1X is used
  97          * (with or without WPA/WPA2), wpa_supplicant remains in this state
  98          * until the IEEE 802.1X/EAPOL authentication has been completed.
  99          */
 100         WPA_ASSOCIATED,
 101
 102         /**
 103          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 104          *
 105          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 106          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 107          * frame after association. In case of WPA-EAP, this state is entered
 108          * when the IEEE 802.1X/EAPOL authentication has been completed.
 109          */
 110         WPA_4WAY_HANDSHAKE,
 111
 112         /**
 113          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 114          *
 115          * This state is entered when 4-Way Key Handshake has been completed
 116          * (i.e., when the supplicant sends out message 4/4) and when Group
 117          * Key rekeying is started by the AP (i.e., when supplicant receives
 118          * message 1/2).
 119          */
 120         WPA_GROUP_HANDSHAKE,
 121
 122         /**
 123          * WPA_COMPLETED - All authentication completed
 124          *
 125          * This state is entered when the full authentication process is
 126          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 127          * successfully completed. With WPA, this state is entered after the
 128          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 129          * completed after dynamic keys are received (or if not used, after
 130          * the EAP authentication has been completed). With static WEP keys and
 131          * plaintext connections, this state is entered when an association
 132          * has been completed.
 133          *
 134          * This state indicates that the supplicant has completed its
 135          * processing for the association phase and that data connection is
 136          * fully configured.
 137          */
 138         WPA_COMPLETED,
 139
 140         /**
 141          * WPA_INVALID - Invalid state (parsing error)
 142          *
 143          * This state is returned if the string input is invalid. It is not
 144          * an official wpa_supplicant state.
 145          */
 146         WPA_INVALID,
 147 };
 148
 149 struct supplicant_result {
 150         char *path;
 151         char *name;
 152         char *addr;
 153         unsigned char *ssid;
 154         unsigned int ssid_len;
 155         dbus_uint16_t capabilities;
 156         gboolean adhoc;
 157         gboolean has_wep;
 158         gboolean has_wpa;
 159         gboolean has_rsn;
 160         gboolean has_wps;
 161         dbus_int32_t frequency;
 162         dbus_int32_t quality;
 163         dbus_int32_t noise;
 164         dbus_int32_t level;
 165         dbus_int32_t maxrate;
 166 };
 167
 168 struct supplicant_task {
 169         int ifindex;
 170         char *ifname;
 171         struct connman_device *device;
 172         struct connman_network *network;
 173         char *path;
 174         char *netpath;
 175         gboolean created;
 176         enum supplicant_state state;
 177         gboolean noscan;
 178         GSList *scan_results;
 179 };
 180
 181 static GSList *task_list = NULL;
 182
 183 static DBusConnection *connection;
 184
 185 static void free_task(struct supplicant_task *task)
 186 {
 187         DBG("task %p", task);
 188
 189         g_free(task->ifname);
 190         g_free(task->path);
 191         g_free(task);
 192 }
 193
 194 static struct supplicant_task *find_task_by_index(int index)
 195 {
 196         GSList *list;
 197
 198         for (list = task_list; list; list = list->next) {
 199                 struct supplicant_task *task = list->data;
 200
 201                 if (task->ifindex == index)
 202                         return task;
 203         }
 204
 205         return NULL;
 206 }
 207
 208 static struct supplicant_task *find_task_by_path(const char *path)
 209 {
 210         GSList *list;
 211
 212         for (list = task_list; list; list = list->next) {
 213                 struct supplicant_task *task = list->data;
 214
 215                 if (g_str_equal(task->path, path) == TRUE)
 216                         return task;
 217         }
 218
 219         return NULL;
 220 }
 221
 222 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 223 {
 224         struct supplicant_task *task = user_data;
 225         DBusMessage *reply;
 226         DBusError error;
 227         const char *path;
 228
 229         DBG("task %p", task);
 230
 231         reply = dbus_pending_call_steal_reply(call);
 232         if (reply == NULL)
 233                 return;
 234
 235         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 236                 goto done;
 237
 238         dbus_error_init(&error);
 239
 240         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 241                                                 DBUS_TYPE_INVALID) == FALSE) {
 242                 if (dbus_error_is_set(&error) == TRUE) {
 243                         connman_error("%s", error.message);
 244                         dbus_error_free(&error);
 245                 } else
 246                         connman_error("Wrong arguments for add interface");
 247                 goto done;
 248         }
 249
 250         DBG("path %s", path);
 251
 252         task->path = g_strdup(path);
 253         task->created = TRUE;
 254
 255         connman_device_set_powered(task->device, TRUE);
 256
 257 done:
 258         dbus_message_unref(reply);
 259 }
 260
 261 static int add_interface(struct supplicant_task *task)
 262 {
 263         const char *driver = "wext";
 264         DBusMessage *message;
 265         DBusMessageIter array, dict;
 266         DBusPendingCall *call;
 267
 268         DBG("task %p", task);
 269
 270         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 271                                         SUPPLICANT_INTF, "addInterface");
 272         if (message == NULL)
 273                 return -ENOMEM;
 274
 275         dbus_message_iter_init_append(message, &array);
 276
 277         dbus_message_iter_append_basic(&array,
 278                                         DBUS_TYPE_STRING, &task->ifname);
 279
 280         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 281                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 282                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 283                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 284
 285         connman_dbus_dict_append_variant(&dict, "driver",
 286                                                 DBUS_TYPE_STRING, &driver);
 287
 288         dbus_message_iter_close_container(&array, &dict);
 289
 290         if (dbus_connection_send_with_reply(connection, message,
 291                                                 &call, TIMEOUT) == FALSE) {
 292                 connman_error("Failed to add interface");
 293                 dbus_message_unref(message);
 294                 return -EIO;
 295         }
 296
 297         if (call == NULL) {
 298                 connman_error("D-Bus connection not available");
 299                 dbus_message_unref(message);
 300                 return -EIO;
 301         }
 302
 303         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 304
 305         dbus_message_unref(message);
 306
 307         return -EINPROGRESS;
 308 }
 309
 310 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 311 {
 312         struct supplicant_task *task = user_data;
 313         DBusMessage *reply;
 314         DBusError error;
 315         const char *path;
 316
 317         DBG("task %p", task);
 318
 319         reply = dbus_pending_call_steal_reply(call);
 320         if (reply == NULL)
 321                 return;
 322
 323         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 324                 add_interface(task);
 325                 goto done;
 326         }
 327
 328         dbus_error_init(&error);
 329
 330         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 331                                                 DBUS_TYPE_INVALID) == FALSE) {
 332                 if (dbus_error_is_set(&error) == TRUE) {
 333                         connman_error("%s", error.message);
 334                         dbus_error_free(&error);
 335                 } else
 336                         connman_error("Wrong arguments for get interface");
 337                 goto done;
 338         }
 339
 340         DBG("path %s", path);
 341
 342         task->path = g_strdup(path);
 343         task->created = FALSE;
 344
 345         connman_device_set_powered(task->device, TRUE);
 346
 347 done:
 348         dbus_message_unref(reply);
 349 }
 350
 351 static int create_interface(struct supplicant_task *task)
 352 {
 353         DBusMessage *message;
 354         DBusPendingCall *call;
 355
 356         DBG("task %p", task);
 357
 358         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 359                                         SUPPLICANT_INTF, "getInterface");
 360         if (message == NULL)
 361                 return -ENOMEM;
 362
 363         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 364                                                         DBUS_TYPE_INVALID);
 365
 366         if (dbus_connection_send_with_reply(connection, message,
 367                                                 &call, TIMEOUT) == FALSE) {
 368                 connman_error("Failed to get interface");
 369                 dbus_message_unref(message);
 370                 return -EIO;
 371         }
 372
 373         if (call == NULL) {
 374                 connman_error("D-Bus connection not available");
 375                 dbus_message_unref(message);
 376                 return -EIO;
 377         }
 378
 379         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 380
 381         dbus_message_unref(message);
 382
 383         return -EINPROGRESS;
 384 }
 385
 386 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 387 {
 388         struct supplicant_task *task = user_data;
 389         DBusMessage *reply;
 390
 391         DBG("task %p", task);
 392
 393         reply = dbus_pending_call_steal_reply(call);
 394
 395         connman_device_set_powered(task->device, FALSE);
 396
 397         connman_device_unref(task->device);
 398
 399         inet_ifdown(task->ifindex);
 400
 401         free_task(task);
 402
 403         dbus_message_unref(reply);
 404 }
 405
 406 static int remove_interface(struct supplicant_task *task)
 407 {
 408         DBusMessage *message;
 409         DBusPendingCall *call;
 410
 411         DBG("task %p", task);
 412
 413         if (task->created == FALSE) {
 414                 connman_device_set_powered(task->device, FALSE);
 415                 return 0;
 416         }
 417
 418         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 419                                         SUPPLICANT_INTF, "removeInterface");
 420         if (message == NULL)
 421                 return -ENOMEM;
 422
 423         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 424                                                         DBUS_TYPE_INVALID);
 425
 426         if (dbus_connection_send_with_reply(connection, message,
 427                                                 &call, TIMEOUT) == FALSE) {
 428                 connman_error("Failed to remove interface");
 429                 dbus_message_unref(message);
 430                 return -EIO;
 431         }
 432
 433         if (call == NULL) {
 434                 connman_error("D-Bus connection not available");
 435                 dbus_message_unref(message);
 436                 return -EIO;
 437         }
 438
 439         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 440
 441         dbus_message_unref(message);
 442
 443         return -EINPROGRESS;
 444 }
 445
 446 #if 0
 447 static int set_ap_scan(struct supplicant_task *task)
 448 {
 449         DBusMessage *message, *reply;
 450         DBusError error;
 451         guint32 ap_scan = 1;
 452
 453         DBG("task %p", task);
 454
 455         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 456                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 457         if (message == NULL)
 458                 return -ENOMEM;
 459
 460         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 461                                                         DBUS_TYPE_INVALID);
 462
 463         dbus_error_init(&error);
 464
 465         reply = dbus_connection_send_with_reply_and_block(connection,
 466                                                         message, -1, &error);
 467         if (reply == NULL) {
 468                 if (dbus_error_is_set(&error) == TRUE) {
 469                         connman_error("%s", error.message);
 470                         dbus_error_free(&error);
 471                 } else
 472                         connman_error("Failed to set AP scan");
 473                 dbus_message_unref(message);
 474                 return -EIO;
 475         }
 476
 477         dbus_message_unref(message);
 478
 479         dbus_message_unref(reply);
 480
 481         return 0;
 482 }
 483 #endif
 484
 485 static int add_network(struct supplicant_task *task)
 486 {
 487         DBusMessage *message, *reply;
 488         DBusError error;
 489         const char *path;
 490
 491         DBG("task %p", task);
 492
 493         if (task->netpath != NULL)
 494                 return -EALREADY;
 495
 496         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 497                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 498         if (message == NULL)
 499                 return -ENOMEM;
 500
 501         dbus_error_init(&error);
 502
 503         reply = dbus_connection_send_with_reply_and_block(connection,
 504                                                         message, -1, &error);
 505         if (reply == NULL) {
 506                 if (dbus_error_is_set(&error) == TRUE) {
 507                         connman_error("%s", error.message);
 508                         dbus_error_free(&error);
 509                 } else
 510                         connman_error("Failed to add network");
 511                 dbus_message_unref(message);
 512                 return -EIO;
 513         }
 514
 515         dbus_message_unref(message);
 516
 517         dbus_error_init(&error);
 518
 519         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 520                                                 DBUS_TYPE_INVALID) == FALSE) {
 521                 if (dbus_error_is_set(&error) == TRUE) {
 522                         connman_error("%s", error.message);
 523                         dbus_error_free(&error);
 524                 } else
 525                         connman_error("Wrong arguments for network");
 526                 dbus_message_unref(reply);
 527                 return -EIO;
 528         }
 529
 530         DBG("path %s", path);
 531
 532         task->netpath = g_strdup(path);
 533
 534         dbus_message_unref(reply);
 535
 536         return 0;
 537 }
 538
 539 static int remove_network(struct supplicant_task *task)
 540 {
 541         DBusMessage *message, *reply;
 542         DBusError error;
 543
 544         DBG("task %p", task);
 545
 546         if (task->netpath == NULL)
 547                 return -EINVAL;
 548
 549         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 550                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 551         if (message == NULL)
 552                 return -ENOMEM;
 553
 554         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 555                                                         DBUS_TYPE_INVALID);
 556
 557         dbus_error_init(&error);
 558
 559         reply = dbus_connection_send_with_reply_and_block(connection,
 560                                                         message, -1, &error);
 561         if (reply == NULL) {
 562                 if (dbus_error_is_set(&error) == TRUE) {
 563                         connman_error("%s", error.message);
 564                         dbus_error_free(&error);
 565                 } else
 566                         connman_error("Failed to remove network");
 567                 dbus_message_unref(message);
 568                 return -EIO;
 569         }
 570
 571         dbus_message_unref(message);
 572
 573         dbus_message_unref(reply);
 574
 575         g_free(task->netpath);
 576         task->netpath = NULL;
 577
 578         return 0;
 579 }
 580
 581 static int select_network(struct supplicant_task *task)
 582 {
 583         DBusMessage *message, *reply;
 584         DBusError error;
 585
 586         DBG("task %p", task);
 587
 588         if (task->netpath == NULL)
 589                 return -EINVAL;
 590
 591         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 592                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 593         if (message == NULL)
 594                 return -ENOMEM;
 595
 596         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 597                                                         DBUS_TYPE_INVALID);
 598
 599         dbus_error_init(&error);
 600
 601         reply = dbus_connection_send_with_reply_and_block(connection,
 602                                                         message, -1, &error);
 603         if (reply == NULL) {
 604                 if (dbus_error_is_set(&error) == TRUE) {
 605                         connman_error("%s", error.message);
 606                         dbus_error_free(&error);
 607                 } else
 608                         connman_error("Failed to select network");
 609                 dbus_message_unref(message);
 610                 return -EIO;
 611         }
 612
 613         dbus_message_unref(message);
 614
 615         dbus_message_unref(reply);
 616
 617         return 0;
 618 }
 619
 620 static int enable_network(struct supplicant_task *task)
 621 {
 622         DBusMessage *message, *reply;
 623         DBusError error;
 624
 625         DBG("task %p", task);
 626
 627         if (task->netpath == NULL)
 628                 return -EINVAL;
 629
 630         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 631                                         SUPPLICANT_INTF ".Network", "enable");
 632         if (message == NULL)
 633                 return -ENOMEM;
 634
 635         dbus_error_init(&error);
 636
 637         reply = dbus_connection_send_with_reply_and_block(connection,
 638                                                         message, -1, &error);
 639         if (reply == NULL) {
 640                 if (dbus_error_is_set(&error) == TRUE) {
 641                         connman_error("%s", error.message);
 642                         dbus_error_free(&error);
 643                 } else
 644                         connman_error("Failed to enable network");
 645                 dbus_message_unref(message);
 646                 return -EIO;
 647         }
 648
 649         dbus_message_unref(message);
 650
 651         dbus_message_unref(reply);
 652
 653         return 0;
 654 }
 655
 656 static int disable_network(struct supplicant_task *task)
 657 {
 658         DBusMessage *message, *reply;
 659         DBusError error;
 660
 661         DBG("task %p", task);
 662
 663         if (task->netpath == NULL)
 664                 return -EINVAL;
 665
 666         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 667                                         SUPPLICANT_INTF ".Network", "disable");
 668         if (message == NULL)
 669                 return -ENOMEM;
 670
 671         dbus_error_init(&error);
 672
 673         reply = dbus_connection_send_with_reply_and_block(connection,
 674                                                         message, -1, &error);
 675         if (reply == NULL) {
 676                 if (dbus_error_is_set(&error) == TRUE) {
 677                         connman_error("%s", error.message);
 678                         dbus_error_free(&error);
 679                 } else
 680                         connman_error("Failed to disable network");
 681                 dbus_message_unref(message);
 682                 return -EIO;
 683         }
 684
 685         dbus_message_unref(message);
 686
 687         dbus_message_unref(reply);
 688
 689         return 0;
 690 }
 691
 692 static int set_network(struct supplicant_task *task,
 693                                 const unsigned char *network, int len,
 694                                 const char *address, const char *security,
 695                                                         const char *passphrase)
 696 {
 697         DBusMessage *message, *reply;
 698         DBusMessageIter array, dict;
 699         DBusError error;
 700
 701         DBG("task %p", task);
 702
 703         if (task->netpath == NULL)
 704                 return -EINVAL;
 705
 706         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 707                                         SUPPLICANT_INTF ".Network", "set");
 708         if (message == NULL)
 709                 return -ENOMEM;
 710
 711         dbus_message_iter_init_append(message, &array);
 712
 713         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 714                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 715                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 716                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 717
 718         if (address == NULL) {
 719                 dbus_uint32_t scan_ssid = 1;
 720                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 721                                                 DBUS_TYPE_UINT32, &scan_ssid);
 722         } else
 723                 connman_dbus_dict_append_variant(&dict, "bssid",
 724                                                 DBUS_TYPE_STRING, &address);
 725
 726         connman_dbus_dict_append_array(&dict, "ssid",
 727                                         DBUS_TYPE_BYTE, &network, len);
 728
 729         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 730                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 731                 const char *key_mgmt = "WPA-PSK";
 732                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 733                                                 DBUS_TYPE_STRING, &key_mgmt);
 734
 735                 if (passphrase && strlen(passphrase) > 0)
 736                         connman_dbus_dict_append_variant(&dict, "psk",
 737                                                 DBUS_TYPE_STRING, &passphrase);
 738         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 739                 const char *key_mgmt = "NONE", *index = "0";
 740                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 741                                                 DBUS_TYPE_STRING, &key_mgmt);
 742
 743                 if (passphrase) {
 744                         int size = strlen(passphrase);
 745                         if (size == 10 || size == 26) {
 746                                 unsigned char *key = malloc(13);
 747                                 char tmp[3];
 748                                 int i;
 749                                 memset(tmp, 0, sizeof(tmp));
 750                                 if (key == NULL)
 751                                         size = 0;
 752                                 for (i = 0; i < size / 2; i++) {
 753                                         memcpy(tmp, passphrase + (i * 2), 2);
 754                                         key[i] = (unsigned char) strtol(tmp,
 755                                                                 NULL, 16);
 756                                 }
 757                                 connman_dbus_dict_append_array(&dict,
 758                                                 "wep_key0", DBUS_TYPE_BYTE,
 759                                                         &key, size / 2);
 760                                 free(key);
 761                         } else
 762                                 connman_dbus_dict_append_variant(&dict,
 763                                                 "wep_key0", DBUS_TYPE_STRING,
 764                                                                 &passphrase);
 765                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 766                                                 DBUS_TYPE_STRING, &index);
 767                 }
 768         } else {
 769                 const char *key_mgmt = "NONE";
 770                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 771                                                 DBUS_TYPE_STRING, &key_mgmt);
 772         }
 773
 774         dbus_message_iter_close_container(&array, &dict);
 775
 776         dbus_error_init(&error);
 777
 778         reply = dbus_connection_send_with_reply_and_block(connection,
 779                                                         message, -1, &error);
 780         if (reply == NULL) {
 781                 if (dbus_error_is_set(&error) == TRUE) {
 782                         connman_error("%s", error.message);
 783                         dbus_error_free(&error);
 784                 } else
 785                         connman_error("Failed to set network options");
 786                 dbus_message_unref(message);
 787                 return -EIO;
 788         }
 789
 790         dbus_message_unref(message);
 791
 792         dbus_message_unref(reply);
 793
 794         return 0;
 795 }
 796
 797 static int initiate_scan(struct supplicant_task *task)
 798 {
 799         DBusMessage *message;
 800         DBusPendingCall *call;
 801
 802         DBG("task %p", task);
 803
 804         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 805                                         SUPPLICANT_INTF ".Interface", "scan");
 806         if (message == NULL)
 807                 return -ENOMEM;
 808
 809         if (dbus_connection_send_with_reply(connection, message,
 810                                                 &call, TIMEOUT) == FALSE) {
 811                 connman_error("Failed to initiate scan");
 812                 dbus_message_unref(message);
 813                 return -EIO;
 814         }
 815
 816         dbus_message_unref(message);
 817
 818         return 0;
 819 }
 820
 821 static struct {
 822         char *name;
 823         char *value;
 824 } special_ssid[] = {
 825         { "<hidden>", "hidden"  },
 826         { "default",  "linksys" },
 827         { "wireless"  },
 828         { "linksys"   },
 829         { "netgear"   },
 830         { "dlink"     },
 831         { "2wire"     },
 832         { "compaq"    },
 833         { "tsunami"   },
 834         { "comcomcom" },
 835         { "Symbol",    "symbol"   },
 836         { "Wireless" , "wireless" },
 837         { "WLAN",      "wlan"     },
 838         { }
 839 };
 840
 841 static char *build_group(const char *addr, const char *name,
 842                         const unsigned char *ssid, unsigned int ssid_len,
 843                                         const char *mode, const char *security)
 844 {
 845         GString *str;
 846         unsigned int i;
 847
 848         if (addr == NULL)
 849                 return NULL;
 850
 851         str = g_string_sized_new((ssid_len * 2) + 24);
 852         if (str == NULL)
 853                 return NULL;
 854
 855         for (i = 0; special_ssid[i].name; i++) {
 856                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 857                         if (special_ssid[i].value == NULL)
 858                                 g_string_append_printf(str, "%s_%s",
 859                                                                 name, addr);
 860                         else
 861                                 g_string_append_printf(str, "%s_%s",
 862                                                 special_ssid[i].value, addr);
 863                         goto done;
 864                 }
 865         }
 866
 867         if (ssid_len > 0 && ssid[0] != '\0') {
 868                 for (i = 0; i < ssid_len; i++)
 869                         g_string_append_printf(str, "%02x", ssid[i]);
 870         } else
 871                 g_string_append_printf(str, "hidden_%s", addr);
 872
 873 done:
 874         g_string_append_printf(str, "_%s_%s", mode, security);
 875
 876         return g_string_free(str, FALSE);
 877 }
 878
 879 static void extract_addr(DBusMessageIter *value,
 880                                         struct supplicant_result *result)
 881 {
 882         DBusMessageIter array;
 883         struct ether_addr *eth;
 884         unsigned char *addr;
 885         int addr_len;
 886
 887         dbus_message_iter_recurse(value, &array);
 888         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 889
 890         if (addr_len != 6)
 891                 return;
 892
 893         eth = (void *) addr;
 894
 895         result->addr = g_try_malloc0(18);
 896         if (result->addr == NULL)
 897                 return;
 898
 899         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 900                                                 eth->ether_addr_octet[0],
 901                                                 eth->ether_addr_octet[1],
 902                                                 eth->ether_addr_octet[2],
 903                                                 eth->ether_addr_octet[3],
 904                                                 eth->ether_addr_octet[4],
 905                                                 eth->ether_addr_octet[5]);
 906
 907         result->path = g_try_malloc0(18);
 908         if (result->path == NULL)
 909                 return;
 910
 911         snprintf(result->path, 18, "%02x%02x%02x%02x%02x%02x",
 912                                                 eth->ether_addr_octet[0],
 913                                                 eth->ether_addr_octet[1],
 914                                                 eth->ether_addr_octet[2],
 915                                                 eth->ether_addr_octet[3],
 916                                                 eth->ether_addr_octet[4],
 917                                                 eth->ether_addr_octet[5]);
 918 }
 919
 920 static void extract_ssid(DBusMessageIter *value,
 921                                         struct supplicant_result *result)
 922 {
 923         DBusMessageIter array;
 924         unsigned char *ssid;
 925         int ssid_len;
 926
 927         dbus_message_iter_recurse(value, &array);
 928         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 929
 930         if (ssid_len < 1)
 931                 return;
 932
 933         result->ssid = g_try_malloc(ssid_len);
 934         if (result->ssid == NULL)
 935                 return;
 936
 937         memcpy(result->ssid, ssid, ssid_len);
 938         result->ssid_len = ssid_len;
 939
 940         result->name = g_try_malloc0(ssid_len + 1);
 941         if (result->name == NULL)
 942                 return;
 943
 944         memcpy(result->name, ssid, ssid_len);
 945 }
 946
 947 static void extract_wpaie(DBusMessageIter *value,
 948                                         struct supplicant_result *result)
 949 {
 950         DBusMessageIter array;
 951         unsigned char *ie;
 952         int ie_len;
 953
 954         dbus_message_iter_recurse(value, &array);
 955         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 956
 957         if (ie_len > 0)
 958                 result->has_wpa = TRUE;
 959 }
 960
 961 static void extract_rsnie(DBusMessageIter *value,
 962                                         struct supplicant_result *result)
 963 {
 964         DBusMessageIter array;
 965         unsigned char *ie;
 966         int ie_len;
 967
 968         dbus_message_iter_recurse(value, &array);
 969         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 970
 971         if (ie_len > 0)
 972                 result->has_rsn = TRUE;
 973 }
 974
 975 static void extract_wpsie(DBusMessageIter *value,
 976                                         struct supplicant_result *result)
 977 {
 978         DBusMessageIter array;
 979         unsigned char *ie;
 980         int ie_len;
 981
 982         dbus_message_iter_recurse(value, &array);
 983         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 984
 985         if (ie_len > 0)
 986                 result->has_wps = TRUE;
 987 }
 988
 989 static void extract_capabilites(DBusMessageIter *value,
 990                                         struct supplicant_result *result)
 991 {
 992         dbus_message_iter_get_basic(value, &result->capabilities);
 993
 994         if (result->capabilities & IEEE80211_CAP_ESS)
 995                 result->adhoc = FALSE;
 996         else if (result->capabilities & IEEE80211_CAP_IBSS)
 997                 result->adhoc = TRUE;
 998
 999         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1000                 result->has_wep = TRUE;
1001 }
1002
1003 static unsigned char calculate_strength(struct supplicant_result *result)
1004 {
1005         if (result->quality < 0)
1006                 return 0;
1007
1008         return result->quality;
1009 }
1010
1011 static unsigned short calculate_channel(struct supplicant_result *result)
1012 {
1013         if (result->frequency < 0)
1014                 return 0;
1015
1016         return (result->frequency - 2407) / 5;
1017 }
1018
1019 static void get_properties(struct supplicant_task *task);
1020
1021 static void properties_reply(DBusPendingCall *call, void *user_data)
1022 {
1023         struct supplicant_task *task = user_data;
1024         struct supplicant_result result;
1025         struct connman_network *network;
1026         DBusMessage *reply;
1027         DBusMessageIter array, dict;
1028         unsigned char strength;
1029         unsigned short channel, frequency;
1030         const char *mode, *security;
1031         char *group;
1032
1033         DBG("task %p", task);
1034
1035         reply = dbus_pending_call_steal_reply(call);
1036         if (reply == NULL) {
1037                 get_properties(task);
1038                 return;
1039         }
1040
1041         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1042                 dbus_message_unref(reply);
1043                 get_properties(task);
1044                 return;
1045         }
1046
1047         memset(&result, 0, sizeof(result));
1048         result.frequency = -1;
1049         result.quality = -1;
1050         result.level = -1;
1051         result.noise = -1;
1052
1053         dbus_message_iter_init(reply, &array);
1054
1055         dbus_message_iter_recurse(&array, &dict);
1056
1057         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1058                 DBusMessageIter entry, value;
1059                 const char *key;
1060
1061                 dbus_message_iter_recurse(&dict, &entry);
1062                 dbus_message_iter_get_basic(&entry, &key);
1063
1064                 dbus_message_iter_next(&entry);
1065
1066                 dbus_message_iter_recurse(&entry, &value);
1067
1068                 //type = dbus_message_iter_get_arg_type(&value);
1069                 //dbus_message_iter_get_basic(&value, &val);
1070
1071                 /*
1072                  * bssid        : a (97)
1073                  * ssid         : a (97)
1074                  * wpaie        : a (97)
1075                  * rsnie        : a (97)
1076                  * wpsie        : a (97)
1077                  * frequency    : i (105)
1078                  * capabilities : q (113)
1079                  * quality      : i (105)
1080                  * noise        : i (105)
1081                  * level        : i (105)
1082                  * maxrate      : i (105)
1083                  */
1084
1085                 if (g_str_equal(key, "bssid") == TRUE)
1086                         extract_addr(&value, &result);
1087                 else if (g_str_equal(key, "ssid") == TRUE)
1088                         extract_ssid(&value, &result);
1089                 else if (g_str_equal(key, "wpaie") == TRUE)
1090                         extract_wpaie(&value, &result);
1091                 else if (g_str_equal(key, "rsnie") == TRUE)
1092                         extract_rsnie(&value, &result);
1093                 else if (g_str_equal(key, "wpsie") == TRUE)
1094                         extract_wpsie(&value, &result);
1095                 else if (g_str_equal(key, "capabilities") == TRUE)
1096                         extract_capabilites(&value, &result);
1097                 else if (g_str_equal(key, "frequency") == TRUE)
1098                         dbus_message_iter_get_basic(&value, &result.frequency);
1099                 else if (g_str_equal(key, "quality") == TRUE)
1100                         dbus_message_iter_get_basic(&value, &result.quality);
1101                 else if (g_str_equal(key, "noise") == TRUE)
1102                         dbus_message_iter_get_basic(&value, &result.noise);
1103                 else if (g_str_equal(key, "level") == TRUE)
1104                         dbus_message_iter_get_basic(&value, &result.level);
1105                 else if (g_str_equal(key, "maxrate") == TRUE)
1106                         dbus_message_iter_get_basic(&value, &result.maxrate);
1107
1108                 dbus_message_iter_next(&dict);
1109         }
1110
1111         if (result.path == NULL)
1112                 goto done;
1113
1114         if (result.path[0] == '\0')
1115                 goto done;
1116
1117         if (result.frequency > 0 && result.frequency < 14)
1118                 result.frequency = 2407 + (5 * result.frequency);
1119         else if (result.frequency == 14)
1120                 result.frequency = 2484;
1121
1122         strength = calculate_strength(&result);
1123         channel  = calculate_channel(&result);
1124
1125         frequency = (result.frequency < 0) ? 0 : result.frequency;
1126
1127         if (result.has_rsn == TRUE)
1128                 security = "rsn";
1129         else if (result.has_wpa == TRUE)
1130                 security = "wpa";
1131         else if (result.has_wep == TRUE)
1132                 security = "wep";
1133         else
1134                 security = "none";
1135
1136         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1137
1138         group = build_group(result.path, result.name,
1139                                         result.ssid, result.ssid_len,
1140                                                         mode, security);
1141
1142         network = connman_device_get_network(task->device, result.path);
1143         if (network == NULL) {
1144                 int index;
1145
1146                 network = connman_network_create(result.path,
1147                                                 CONNMAN_NETWORK_TYPE_WIFI);
1148                 if (network == NULL)
1149                         goto done;
1150
1151                 index = connman_device_get_index(task->device);
1152                 connman_network_set_index(network, index);
1153
1154                 connman_network_set_protocol(network,
1155                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1156
1157                 connman_network_set_string(network, "Address", result.addr);
1158
1159                 if (connman_device_add_network(task->device, network) < 0) {
1160                         connman_network_unref(network);
1161                         goto done;
1162                 }
1163         }
1164
1165         if (result.name != NULL && result.name[0] != '\0')
1166                 connman_network_set_string(network, "Name", result.name);
1167
1168         connman_network_set_blob(network, "WiFi.SSID",
1169                                                 result.ssid, result.ssid_len);
1170
1171         connman_network_set_string(network, "WiFi.Mode", mode);
1172
1173         DBG("%s (%s %s) strength %d (%s)",
1174                                 result.name, mode, security, strength,
1175                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1176
1177         connman_network_set_available(network, TRUE);
1178         connman_network_set_uint8(network, "Strength", strength);
1179         connman_network_set_uint16(network, "Frequency", frequency);
1180
1181         connman_network_set_uint16(network, "WiFi.Channel", channel);
1182         connman_network_set_string(network, "WiFi.Security", security);
1183
1184         connman_network_set_group(network, group);
1185
1186         g_free(group);
1187
1188 done:
1189         g_free(result.path);
1190         g_free(result.addr);
1191         g_free(result.name);
1192         g_free(result.ssid);
1193
1194         dbus_message_unref(reply);
1195
1196         get_properties(task);
1197 }
1198
1199 static void get_properties(struct supplicant_task *task)
1200 {
1201         DBusMessage *message;
1202         DBusPendingCall *call;
1203         char *path;
1204
1205         path = g_slist_nth_data(task->scan_results, 0);
1206         if (path == NULL)
1207                 goto noscan;
1208
1209         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1210                                                 SUPPLICANT_INTF ".BSSID",
1211                                                                 "properties");
1212
1213         task->scan_results = g_slist_remove(task->scan_results, path);
1214         g_free(path);
1215
1216         if (message == NULL)
1217                 goto noscan;
1218
1219         if (dbus_connection_send_with_reply(connection, message,
1220                                                 &call, TIMEOUT) == FALSE) {
1221                 connman_error("Failed to get network properties");
1222                 dbus_message_unref(message);
1223                 goto noscan;
1224         }
1225
1226         if (call == NULL) {
1227                 connman_error("D-Bus connection not available");
1228                 dbus_message_unref(message);
1229                 goto noscan;
1230         }
1231
1232         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1233
1234         dbus_message_unref(message);
1235
1236         return;
1237
1238 noscan:
1239         if (task->noscan == FALSE)
1240                 connman_device_set_scanning(task->device, FALSE);
1241 }
1242
1243 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1244 {
1245         struct supplicant_task *task = user_data;
1246         DBusMessage *reply;
1247         DBusError error;
1248         char **results;
1249         int i, num_results;
1250
1251         DBG("task %p", task);
1252
1253         reply = dbus_pending_call_steal_reply(call);
1254         if (reply == NULL)
1255                 goto noscan;
1256
1257         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1258                 goto done;
1259
1260         dbus_error_init(&error);
1261
1262         if (dbus_message_get_args(reply, &error,
1263                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1264                                                 &results, &num_results,
1265                                                 DBUS_TYPE_INVALID) == FALSE) {
1266                 if (dbus_error_is_set(&error) == TRUE) {
1267                         connman_error("%s", error.message);
1268                         dbus_error_free(&error);
1269                 } else
1270                         connman_error("Wrong arguments for scan result");
1271                 goto done;
1272         }
1273
1274         if (num_results == 0)
1275                 goto done;
1276
1277         for (i = 0; i < num_results; i++) {
1278                 char *path = g_strdup(results[i]);
1279                 if (path == NULL)
1280                         continue;
1281
1282                 task->scan_results = g_slist_append(task->scan_results, path);
1283         }
1284
1285         g_strfreev(results);
1286
1287         dbus_message_unref(reply);
1288
1289         get_properties(task);
1290
1291         return;
1292
1293 done:
1294         dbus_message_unref(reply);
1295
1296 noscan:
1297         if (task->noscan == FALSE)
1298                 connman_device_set_scanning(task->device, FALSE);
1299 }
1300
1301 static void scan_results_available(struct supplicant_task *task)
1302 {
1303         DBusMessage *message;
1304         DBusPendingCall *call;
1305
1306         DBG("task %p", task);
1307
1308         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1309                                                 SUPPLICANT_INTF ".Interface",
1310                                                         "scanResults");
1311         if (message == NULL)
1312                 return;
1313
1314         if (dbus_connection_send_with_reply(connection, message,
1315                                                 &call, TIMEOUT) == FALSE) {
1316                 connman_error("Failed to request scan result");
1317                 goto done;
1318         }
1319
1320         if (task->noscan == FALSE)
1321                 connman_device_set_scanning(task->device, TRUE);
1322
1323         if (call == NULL) {
1324                 connman_error("D-Bus connection not available");
1325                 goto done;
1326         }
1327
1328         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1329
1330 done:
1331         dbus_message_unref(message);
1332 }
1333
1334 static enum supplicant_state string2state(const char *state)
1335 {
1336         if (g_str_equal(state, "INACTIVE") == TRUE)
1337                 return WPA_INACTIVE;
1338         else if (g_str_equal(state, "SCANNING") == TRUE)
1339                 return WPA_SCANNING;
1340         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1341                 return WPA_ASSOCIATING;
1342         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1343                 return WPA_ASSOCIATED;
1344         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1345                 return WPA_GROUP_HANDSHAKE;
1346         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1347                 return WPA_4WAY_HANDSHAKE;
1348         else if (g_str_equal(state, "COMPLETED") == TRUE)
1349                 return WPA_COMPLETED;
1350         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1351                 return WPA_DISCONNECTED;
1352         else
1353                 return WPA_INVALID;
1354 }
1355
1356 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1357 {
1358         DBusError error;
1359         const char *newstate, *oldstate;
1360         enum supplicant_state state;
1361
1362         dbus_error_init(&error);
1363
1364         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1365                                                 DBUS_TYPE_STRING, &oldstate,
1366                                                 DBUS_TYPE_INVALID) == FALSE) {
1367                 if (dbus_error_is_set(&error) == TRUE) {
1368                         connman_error("%s", error.message);
1369                         dbus_error_free(&error);
1370                 } else
1371                         connman_error("Wrong arguments for state change");
1372                 return;
1373         }
1374
1375         DBG("state %s ==> %s", oldstate, newstate);
1376
1377         state = string2state(newstate);
1378         if (state == WPA_INVALID)
1379                 return;
1380
1381         task->state = state;
1382
1383         switch (task->state) {
1384         case WPA_SCANNING:
1385                 task->noscan = TRUE;
1386                 connman_device_set_scanning(task->device, TRUE);
1387                 break;
1388         case WPA_ASSOCIATING:
1389         case WPA_ASSOCIATED:
1390         case WPA_4WAY_HANDSHAKE:
1391         case WPA_GROUP_HANDSHAKE:
1392                 task->noscan = TRUE;
1393                 break;
1394         case WPA_COMPLETED:
1395         case WPA_DISCONNECTED:
1396                 task->noscan = FALSE;
1397                 break;
1398         case WPA_INACTIVE:
1399                 task->noscan = FALSE;
1400                 connman_device_set_scanning(task->device, FALSE);
1401                 break;
1402         case WPA_INVALID:
1403                 break;
1404         }
1405
1406         if (task->network == NULL)
1407                 return;
1408
1409         switch (task->state) {
1410         case WPA_COMPLETED:
1411                 /* carrier on */
1412                 connman_network_set_connected(task->network, TRUE);
1413                 connman_device_set_scanning(task->device, FALSE);
1414                 break;
1415         case WPA_DISCONNECTED:
1416                 /* carrier off */
1417                 connman_network_set_connected(task->network, FALSE);
1418                 connman_device_set_scanning(task->device, FALSE);
1419                 break;
1420         case WPA_ASSOCIATING:
1421                 connman_network_set_associating(task->network, TRUE);
1422                 break;
1423         default:
1424                 connman_network_set_associating(task->network, FALSE);
1425                 break;
1426         }
1427 }
1428
1429 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1430                                                 DBusMessage *msg, void *data)
1431 {
1432         struct supplicant_task *task;
1433         const char *member, *path;
1434
1435         if (dbus_message_has_interface(msg,
1436                                 SUPPLICANT_INTF ".Interface") == FALSE)
1437                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1438
1439         member = dbus_message_get_member(msg);
1440         if (member == NULL)
1441                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1442
1443         path = dbus_message_get_path(msg);
1444         if (path == NULL)
1445                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1446
1447         task = find_task_by_path(path);
1448         if (task == NULL)
1449                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1450
1451         DBG("task %p member %s", task, member);
1452
1453         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1454                 scan_results_available(task);
1455         else if (g_str_equal(member, "StateChange") == TRUE)
1456                 state_change(task, msg);
1457
1458         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1459 }
1460
1461 int supplicant_start(struct connman_device *device)
1462 {
1463         struct supplicant_task *task;
1464
1465         DBG("device %p", device);
1466
1467         task = g_try_new0(struct supplicant_task, 1);
1468         if (task == NULL)
1469                 return -ENOMEM;
1470
1471         task->ifindex = connman_device_get_index(device);
1472         task->ifname = inet_index2name(task->ifindex);
1473
1474         if (task->ifname == NULL) {
1475                 g_free(task);
1476                 return -ENOMEM;
1477         }
1478
1479         task->device = connman_device_ref(device);
1480
1481         task->created = FALSE;
1482         task->noscan = FALSE;
1483         task->state = WPA_INVALID;
1484
1485         task_list = g_slist_append(task_list, task);
1486
1487         return create_interface(task);
1488 }
1489
1490 int supplicant_stop(struct connman_device *device)
1491 {
1492         int index = connman_device_get_index(device);
1493         struct supplicant_task *task;
1494
1495         DBG("device %p", device);
1496
1497         task = find_task_by_index(index);
1498         if (task == NULL)
1499                 return -ENODEV;
1500
1501         task_list = g_slist_remove(task_list, task);
1502
1503         disable_network(task);
1504
1505         remove_network(task);
1506
1507         return remove_interface(task);
1508 }
1509
1510 int supplicant_scan(struct connman_device *device)
1511 {
1512         int index = connman_device_get_index(device);
1513         struct supplicant_task *task;
1514         int err;
1515
1516         DBG("device %p", device);
1517
1518         task = find_task_by_index(index);
1519         if (task == NULL)
1520                 return -ENODEV;
1521
1522         switch (task->state) {
1523         case WPA_SCANNING:
1524                 return -EALREADY;
1525         case WPA_ASSOCIATING:
1526         case WPA_ASSOCIATED:
1527         case WPA_4WAY_HANDSHAKE:
1528         case WPA_GROUP_HANDSHAKE:
1529                 return -EBUSY;
1530         default:
1531                 break;
1532         }
1533
1534         err = initiate_scan(task);
1535
1536         return 0;
1537 }
1538
1539 int supplicant_connect(struct connman_network *network)
1540 {
1541         struct supplicant_task *task;
1542         const char *address, *security, *passphrase;
1543         const void *ssid;
1544         unsigned int ssid_len;
1545         int index;
1546
1547         DBG("network %p", network);
1548
1549         address = connman_network_get_string(network, "Address");
1550         security = connman_network_get_string(network, "WiFi.Security");
1551         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1552
1553         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1554
1555         DBG("address %s security %s passphrase %s",
1556                                         address, security, passphrase);
1557
1558         if (security == NULL && passphrase == NULL)
1559                 return -EINVAL;
1560
1561         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1562                 return -EINVAL;
1563
1564         index = connman_network_get_index(network);
1565
1566         task = find_task_by_index(index);
1567         if (task == NULL)
1568                 return -ENODEV;
1569
1570         task->network = connman_network_ref(network);
1571
1572         add_network(task);
1573
1574         select_network(task);
1575         disable_network(task);
1576
1577         set_network(task, ssid, ssid_len, address, security, passphrase);
1578
1579         enable_network(task);
1580
1581         connman_network_set_associating(task->network, TRUE);
1582
1583         return 0;
1584 }
1585
1586 int supplicant_disconnect(struct connman_network *network)
1587 {
1588         struct supplicant_task *task;
1589         int index;
1590
1591         DBG("network %p", network);
1592
1593         index = connman_network_get_index(network);
1594
1595         task = find_task_by_index(index);
1596         if (task == NULL)
1597                 return -ENODEV;
1598
1599         disable_network(task);
1600
1601         remove_network(task);
1602
1603         connman_network_set_connected(task->network, FALSE);
1604
1605         connman_network_unref(task->network);
1606
1607         return 0;
1608 }
1609
1610 static void supplicant_activate(DBusConnection *conn)
1611 {
1612         DBusMessage *message;
1613
1614         DBG("conn %p", conn);
1615
1616         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1617                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1618         if (message == NULL)
1619                 return;
1620
1621         dbus_message_set_no_reply(message, TRUE);
1622
1623         dbus_connection_send(conn, message, NULL);
1624
1625         dbus_message_unref(message);
1626 }
1627
1628 static GSList *driver_list = NULL;
1629
1630 static void supplicant_probe(DBusConnection *conn, void *user_data)
1631 {
1632         GSList *list;
1633
1634         DBG("conn %p", conn);
1635
1636         for (list = driver_list; list; list = list->next) {
1637                 struct supplicant_driver *driver = list->data;
1638
1639                 DBG("driver %p name %s", driver, driver->name);
1640
1641                 if (driver->probe)
1642                         driver->probe();
1643         }
1644 }
1645
1646 static void supplicant_remove(DBusConnection *conn, void *user_data)
1647 {
1648         GSList *list;
1649
1650         DBG("conn %p", conn);
1651
1652         for (list = driver_list; list; list = list->next) {
1653                 struct supplicant_driver *driver = list->data;
1654
1655                 DBG("driver %p name %s", driver, driver->name);
1656
1657                 if (driver->remove)
1658                         driver->remove();
1659         }
1660 }
1661
1662 static const char *supplicant_rule = "type=signal,"
1663                                 "interface=" SUPPLICANT_INTF ".Interface";
1664 static guint watch;
1665
1666 static int supplicant_create(void)
1667 {
1668         if (g_slist_length(driver_list) > 0)
1669                 return 0;
1670
1671         connection = connman_dbus_get_connection();
1672         if (connection == NULL)
1673                 return -EIO;
1674
1675         DBG("connection %p", connection);
1676
1677         if (dbus_connection_add_filter(connection,
1678                                 supplicant_filter, NULL, NULL) == FALSE) {
1679                 connection = connman_dbus_get_connection();
1680                 return -EIO;
1681         }
1682
1683         dbus_bus_add_match(connection, supplicant_rule, NULL);
1684         dbus_connection_flush(connection);
1685
1686         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1687                         supplicant_probe, supplicant_remove, NULL, NULL);
1688
1689         return 0;
1690 }
1691
1692 static void supplicant_destroy(void)
1693 {
1694         if (g_slist_length(driver_list) > 0)
1695                 return;
1696
1697         DBG("connection %p", connection);
1698
1699         if (watch > 0)
1700                 g_dbus_remove_watch(connection, watch);
1701
1702         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1703         dbus_connection_flush(connection);
1704
1705         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1706
1707         dbus_connection_unref(connection);
1708         connection = NULL;
1709 }
1710
1711 int supplicant_register(struct supplicant_driver *driver)
1712 {
1713         int err;
1714
1715         DBG("driver %p name %s", driver, driver->name);
1716
1717         err = supplicant_create();
1718         if (err < 0)
1719                 return err;
1720
1721         driver_list = g_slist_append(driver_list, driver);
1722
1723         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1724                 supplicant_probe(connection, NULL);
1725         else
1726                 supplicant_activate(connection);
1727
1728         return 0;
1729 }
1730
1731 void supplicant_unregister(struct supplicant_driver *driver)
1732 {
1733         DBG("driver %p name %s", driver, driver->name);
1734
1735         supplicant_remove(connection, NULL);
1736
1737         driver_list = g_slist_remove(driver_list, driver);
1738
1739         supplicant_destroy();
1740 }