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         unsigned char *addr;
 154         unsigned int addr_len;
 155         unsigned char *ssid;
 156         unsigned int ssid_len;
 157         dbus_uint16_t capabilities;
 158         gboolean adhoc;
 159         gboolean has_wep;
 160         gboolean has_wpa;
 161         gboolean has_rsn;
 162         gboolean has_wps;
 163         dbus_int32_t frequency;
 164         dbus_int32_t quality;
 165         dbus_int32_t noise;
 166         dbus_int32_t level;
 167         dbus_int32_t maxrate;
 168 };
 169
 170 struct supplicant_task {
 171         int ifindex;
 172         char *ifname;
 173         struct connman_device *device;
 174         struct connman_network *network;
 175         char *path;
 176         char *netpath;
 177         gboolean created;
 178         enum supplicant_state state;
 179         gboolean noscan;
 180         GSList *scan_results;
 181 };
 182
 183 static GSList *task_list = NULL;
 184
 185 static DBusConnection *connection;
 186
 187 static void free_task(struct supplicant_task *task)
 188 {
 189         DBG("task %p", task);
 190
 191         g_free(task->ifname);
 192         g_free(task->path);
 193         g_free(task);
 194 }
 195
 196 static struct supplicant_task *find_task_by_index(int index)
 197 {
 198         GSList *list;
 199
 200         for (list = task_list; list; list = list->next) {
 201                 struct supplicant_task *task = list->data;
 202
 203                 if (task->ifindex == index)
 204                         return task;
 205         }
 206
 207         return NULL;
 208 }
 209
 210 static struct supplicant_task *find_task_by_path(const char *path)
 211 {
 212         GSList *list;
 213
 214         for (list = task_list; list; list = list->next) {
 215                 struct supplicant_task *task = list->data;
 216
 217                 if (g_strcmp0(task->path, path) == 0)
 218                         return task;
 219         }
 220
 221         return NULL;
 222 }
 223
 224 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 225 {
 226         struct supplicant_task *task = user_data;
 227         DBusMessage *reply;
 228         DBusError error;
 229         const char *path;
 230
 231         DBG("task %p", task);
 232
 233         reply = dbus_pending_call_steal_reply(call);
 234         if (reply == NULL)
 235                 return;
 236
 237         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 238                 goto failed;
 239
 240         dbus_error_init(&error);
 241
 242         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 243                                                 DBUS_TYPE_INVALID) == FALSE) {
 244                 if (dbus_error_is_set(&error) == TRUE) {
 245                         connman_error("%s", error.message);
 246                         dbus_error_free(&error);
 247                 } else
 248                         connman_error("Wrong arguments for add interface");
 249                 goto failed;
 250         }
 251
 252         DBG("path %s", path);
 253
 254         task->path = g_strdup(path);
 255         task->created = TRUE;
 256
 257         connman_device_set_powered(task->device, TRUE);
 258
 259         dbus_message_unref(reply);
 260
 261         return;
 262
 263 failed:
 264         task_list = g_slist_remove(task_list, task);
 265
 266         connman_device_unref(task->device);
 267
 268         free_task(task);
 269 }
 270
 271 static int add_interface(struct supplicant_task *task)
 272 {
 273         const char *driver = connman_option_get_string("wifi");
 274         DBusMessage *message;
 275         DBusMessageIter array, dict;
 276         DBusPendingCall *call;
 277
 278         DBG("task %p", task);
 279
 280         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 281                                         SUPPLICANT_INTF, "addInterface");
 282         if (message == NULL)
 283                 return -ENOMEM;
 284
 285         dbus_message_iter_init_append(message, &array);
 286
 287         dbus_message_iter_append_basic(&array,
 288                                         DBUS_TYPE_STRING, &task->ifname);
 289
 290         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 291                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 292                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 293                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 294
 295         connman_dbus_dict_append_variant(&dict, "driver",
 296                                                 DBUS_TYPE_STRING, &driver);
 297
 298         dbus_message_iter_close_container(&array, &dict);
 299
 300         if (dbus_connection_send_with_reply(connection, message,
 301                                                 &call, TIMEOUT) == FALSE) {
 302                 connman_error("Failed to add interface");
 303                 dbus_message_unref(message);
 304                 return -EIO;
 305         }
 306
 307         if (call == NULL) {
 308                 connman_error("D-Bus connection not available");
 309                 dbus_message_unref(message);
 310                 return -EIO;
 311         }
 312
 313         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 314
 315         dbus_message_unref(message);
 316
 317         return -EINPROGRESS;
 318 }
 319
 320 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 321 {
 322         struct supplicant_task *task = user_data;
 323         DBusMessage *reply;
 324         DBusError error;
 325         const char *path;
 326
 327         DBG("task %p", task);
 328
 329         reply = dbus_pending_call_steal_reply(call);
 330         if (reply == NULL)
 331                 return;
 332
 333         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 334                 add_interface(task);
 335                 goto done;
 336         }
 337
 338         dbus_error_init(&error);
 339
 340         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 341                                                 DBUS_TYPE_INVALID) == FALSE) {
 342                 if (dbus_error_is_set(&error) == TRUE) {
 343                         connman_error("%s", error.message);
 344                         dbus_error_free(&error);
 345                 } else
 346                         connman_error("Wrong arguments for get interface");
 347                 goto done;
 348         }
 349
 350         DBG("path %s", path);
 351
 352         task->path = g_strdup(path);
 353         task->created = FALSE;
 354
 355         connman_device_set_powered(task->device, TRUE);
 356
 357 done:
 358         dbus_message_unref(reply);
 359 }
 360
 361 static int create_interface(struct supplicant_task *task)
 362 {
 363         DBusMessage *message;
 364         DBusPendingCall *call;
 365
 366         DBG("task %p", task);
 367
 368         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 369                                         SUPPLICANT_INTF, "getInterface");
 370         if (message == NULL)
 371                 return -ENOMEM;
 372
 373         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 374                                                         DBUS_TYPE_INVALID);
 375
 376         if (dbus_connection_send_with_reply(connection, message,
 377                                                 &call, TIMEOUT) == FALSE) {
 378                 connman_error("Failed to get interface");
 379                 dbus_message_unref(message);
 380                 return -EIO;
 381         }
 382
 383         if (call == NULL) {
 384                 connman_error("D-Bus connection not available");
 385                 dbus_message_unref(message);
 386                 return -EIO;
 387         }
 388
 389         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 390
 391         dbus_message_unref(message);
 392
 393         return -EINPROGRESS;
 394 }
 395
 396 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 397 {
 398         struct supplicant_task *task = user_data;
 399         DBusMessage *reply;
 400
 401         DBG("task %p", task);
 402
 403         reply = dbus_pending_call_steal_reply(call);
 404
 405         connman_device_set_powered(task->device, FALSE);
 406
 407         connman_device_unref(task->device);
 408
 409         connman_inet_ifdown(task->ifindex);
 410
 411         free_task(task);
 412
 413         dbus_message_unref(reply);
 414 }
 415
 416 static int remove_interface(struct supplicant_task *task)
 417 {
 418         DBusMessage *message;
 419         DBusPendingCall *call;
 420
 421         DBG("task %p", task);
 422
 423         if (task->created == FALSE) {
 424                 connman_device_set_powered(task->device, FALSE);
 425                 return 0;
 426         }
 427
 428         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 429                                         SUPPLICANT_INTF, "removeInterface");
 430         if (message == NULL)
 431                 return -ENOMEM;
 432
 433         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 434                                                         DBUS_TYPE_INVALID);
 435
 436         if (dbus_connection_send_with_reply(connection, message,
 437                                                 &call, TIMEOUT) == FALSE) {
 438                 connman_error("Failed to remove interface");
 439                 dbus_message_unref(message);
 440                 return -EIO;
 441         }
 442
 443         if (call == NULL) {
 444                 connman_error("D-Bus connection not available");
 445                 dbus_message_unref(message);
 446                 return -EIO;
 447         }
 448
 449         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 450
 451         dbus_message_unref(message);
 452
 453         return -EINPROGRESS;
 454 }
 455
 456 #if 0
 457 static int set_ap_scan(struct supplicant_task *task)
 458 {
 459         DBusMessage *message, *reply;
 460         DBusError error;
 461         guint32 ap_scan = 1;
 462
 463         DBG("task %p", task);
 464
 465         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 466                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 467         if (message == NULL)
 468                 return -ENOMEM;
 469
 470         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 471                                                         DBUS_TYPE_INVALID);
 472
 473         dbus_error_init(&error);
 474
 475         reply = dbus_connection_send_with_reply_and_block(connection,
 476                                                         message, -1, &error);
 477         if (reply == NULL) {
 478                 if (dbus_error_is_set(&error) == TRUE) {
 479                         connman_error("%s", error.message);
 480                         dbus_error_free(&error);
 481                 } else
 482                         connman_error("Failed to set AP scan");
 483                 dbus_message_unref(message);
 484                 return -EIO;
 485         }
 486
 487         dbus_message_unref(message);
 488
 489         dbus_message_unref(reply);
 490
 491         return 0;
 492 }
 493 #endif
 494
 495 static int add_network(struct supplicant_task *task)
 496 {
 497         DBusMessage *message, *reply;
 498         DBusError error;
 499         const char *path;
 500
 501         DBG("task %p", task);
 502
 503         if (task->netpath != NULL)
 504                 return -EALREADY;
 505
 506         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 507                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 508         if (message == NULL)
 509                 return -ENOMEM;
 510
 511         dbus_error_init(&error);
 512
 513         reply = dbus_connection_send_with_reply_and_block(connection,
 514                                                         message, -1, &error);
 515         if (reply == NULL) {
 516                 if (dbus_error_is_set(&error) == TRUE) {
 517                         connman_error("%s", error.message);
 518                         dbus_error_free(&error);
 519                 } else
 520                         connman_error("Failed to add network");
 521                 dbus_message_unref(message);
 522                 return -EIO;
 523         }
 524
 525         dbus_message_unref(message);
 526
 527         dbus_error_init(&error);
 528
 529         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 530                                                 DBUS_TYPE_INVALID) == FALSE) {
 531                 if (dbus_error_is_set(&error) == TRUE) {
 532                         connman_error("%s", error.message);
 533                         dbus_error_free(&error);
 534                 } else
 535                         connman_error("Wrong arguments for network");
 536                 dbus_message_unref(reply);
 537                 return -EIO;
 538         }
 539
 540         DBG("path %s", path);
 541
 542         task->netpath = g_strdup(path);
 543
 544         dbus_message_unref(reply);
 545
 546         return 0;
 547 }
 548
 549 static int remove_network(struct supplicant_task *task)
 550 {
 551         DBusMessage *message, *reply;
 552         DBusError error;
 553
 554         DBG("task %p", task);
 555
 556         if (task->netpath == NULL)
 557                 return -EINVAL;
 558
 559         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 560                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 561         if (message == NULL)
 562                 return -ENOMEM;
 563
 564         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 565                                                         DBUS_TYPE_INVALID);
 566
 567         dbus_error_init(&error);
 568
 569         reply = dbus_connection_send_with_reply_and_block(connection,
 570                                                         message, -1, &error);
 571         if (reply == NULL) {
 572                 if (dbus_error_is_set(&error) == TRUE) {
 573                         connman_error("%s", error.message);
 574                         dbus_error_free(&error);
 575                 } else
 576                         connman_error("Failed to remove network");
 577                 dbus_message_unref(message);
 578                 return -EIO;
 579         }
 580
 581         dbus_message_unref(message);
 582
 583         dbus_message_unref(reply);
 584
 585         g_free(task->netpath);
 586         task->netpath = NULL;
 587
 588         return 0;
 589 }
 590
 591 static int select_network(struct supplicant_task *task)
 592 {
 593         DBusMessage *message, *reply;
 594         DBusError error;
 595
 596         DBG("task %p", task);
 597
 598         if (task->netpath == NULL)
 599                 return -EINVAL;
 600
 601         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 602                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 603         if (message == NULL)
 604                 return -ENOMEM;
 605
 606         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 607                                                         DBUS_TYPE_INVALID);
 608
 609         dbus_error_init(&error);
 610
 611         reply = dbus_connection_send_with_reply_and_block(connection,
 612                                                         message, -1, &error);
 613         if (reply == NULL) {
 614                 if (dbus_error_is_set(&error) == TRUE) {
 615                         connman_error("%s", error.message);
 616                         dbus_error_free(&error);
 617                 } else
 618                         connman_error("Failed to select network");
 619                 dbus_message_unref(message);
 620                 return -EIO;
 621         }
 622
 623         dbus_message_unref(message);
 624
 625         dbus_message_unref(reply);
 626
 627         return 0;
 628 }
 629
 630 static int enable_network(struct supplicant_task *task)
 631 {
 632         DBusMessage *message, *reply;
 633         DBusError error;
 634
 635         DBG("task %p", task);
 636
 637         if (task->netpath == NULL)
 638                 return -EINVAL;
 639
 640         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 641                                         SUPPLICANT_INTF ".Network", "enable");
 642         if (message == NULL)
 643                 return -ENOMEM;
 644
 645         dbus_error_init(&error);
 646
 647         reply = dbus_connection_send_with_reply_and_block(connection,
 648                                                         message, -1, &error);
 649         if (reply == NULL) {
 650                 if (dbus_error_is_set(&error) == TRUE) {
 651                         connman_error("%s", error.message);
 652                         dbus_error_free(&error);
 653                 } else
 654                         connman_error("Failed to enable network");
 655                 dbus_message_unref(message);
 656                 return -EIO;
 657         }
 658
 659         dbus_message_unref(message);
 660
 661         dbus_message_unref(reply);
 662
 663         return 0;
 664 }
 665
 666 static int disable_network(struct supplicant_task *task)
 667 {
 668         DBusMessage *message, *reply;
 669         DBusError error;
 670
 671         DBG("task %p", task);
 672
 673         if (task->netpath == NULL)
 674                 return -EINVAL;
 675
 676         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 677                                         SUPPLICANT_INTF ".Network", "disable");
 678         if (message == NULL)
 679                 return -ENOMEM;
 680
 681         dbus_error_init(&error);
 682
 683         reply = dbus_connection_send_with_reply_and_block(connection,
 684                                                         message, -1, &error);
 685         if (reply == NULL) {
 686                 if (dbus_error_is_set(&error) == TRUE) {
 687                         connman_error("%s", error.message);
 688                         dbus_error_free(&error);
 689                 } else
 690                         connman_error("Failed to disable network");
 691                 dbus_message_unref(message);
 692                 return -EIO;
 693         }
 694
 695         dbus_message_unref(message);
 696
 697         dbus_message_unref(reply);
 698
 699         return 0;
 700 }
 701
 702 static int set_network(struct supplicant_task *task,
 703                                 const unsigned char *network, int len,
 704                                 const char *address, const char *security,
 705                                                         const char *passphrase)
 706 {
 707         DBusMessage *message, *reply;
 708         DBusMessageIter array, dict;
 709         DBusError error;
 710
 711         DBG("task %p", task);
 712
 713         if (task->netpath == NULL)
 714                 return -EINVAL;
 715
 716         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 717                                         SUPPLICANT_INTF ".Network", "set");
 718         if (message == NULL)
 719                 return -ENOMEM;
 720
 721         dbus_message_iter_init_append(message, &array);
 722
 723         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 724                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 725                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 726                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 727
 728         if (address == NULL) {
 729                 dbus_uint32_t scan_ssid = 1;
 730                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 731                                                 DBUS_TYPE_UINT32, &scan_ssid);
 732         } else
 733                 connman_dbus_dict_append_variant(&dict, "bssid",
 734                                                 DBUS_TYPE_STRING, &address);
 735
 736         connman_dbus_dict_append_array(&dict, "ssid",
 737                                         DBUS_TYPE_BYTE, &network, len);
 738
 739         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 740                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 741                 const char *key_mgmt = "WPA-PSK";
 742                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 743                                                 DBUS_TYPE_STRING, &key_mgmt);
 744
 745                 if (passphrase && strlen(passphrase) > 0)
 746                         connman_dbus_dict_append_variant(&dict, "psk",
 747                                                 DBUS_TYPE_STRING, &passphrase);
 748         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 749                 const char *key_mgmt = "NONE", *index = "0";
 750                 const char *auth_alg = "OPEN SHARED";
 751                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 752                                                 DBUS_TYPE_STRING, &key_mgmt);
 753
 754                 connman_dbus_dict_append_variant(&dict, "auth_alg",
 755                                                 DBUS_TYPE_STRING, &auth_alg);
 756
 757                 if (passphrase) {
 758                         int size = strlen(passphrase);
 759                         if (size == 10 || size == 26) {
 760                                 unsigned char *key = malloc(13);
 761                                 char tmp[3];
 762                                 int i;
 763                                 memset(tmp, 0, sizeof(tmp));
 764                                 if (key == NULL)
 765                                         size = 0;
 766                                 for (i = 0; i < size / 2; i++) {
 767                                         memcpy(tmp, passphrase + (i * 2), 2);
 768                                         key[i] = (unsigned char) strtol(tmp,
 769                                                                 NULL, 16);
 770                                 }
 771                                 connman_dbus_dict_append_array(&dict,
 772                                                 "wep_key0", DBUS_TYPE_BYTE,
 773                                                         &key, size / 2);
 774                                 free(key);
 775                         } else
 776                                 connman_dbus_dict_append_variant(&dict,
 777                                                 "wep_key0", DBUS_TYPE_STRING,
 778                                                                 &passphrase);
 779                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 780                                                 DBUS_TYPE_STRING, &index);
 781                 }
 782         } else {
 783                 const char *key_mgmt = "NONE";
 784                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 785                                                 DBUS_TYPE_STRING, &key_mgmt);
 786         }
 787
 788         dbus_message_iter_close_container(&array, &dict);
 789
 790         dbus_error_init(&error);
 791
 792         reply = dbus_connection_send_with_reply_and_block(connection,
 793                                                         message, -1, &error);
 794         if (reply == NULL) {
 795                 if (dbus_error_is_set(&error) == TRUE) {
 796                         connman_error("%s", error.message);
 797                         dbus_error_free(&error);
 798                 } else
 799                         connman_error("Failed to set network options");
 800                 dbus_message_unref(message);
 801                 return -EIO;
 802         }
 803
 804         dbus_message_unref(message);
 805
 806         dbus_message_unref(reply);
 807
 808         return 0;
 809 }
 810
 811 static int initiate_scan(struct supplicant_task *task)
 812 {
 813         DBusMessage *message;
 814         DBusPendingCall *call;
 815
 816         DBG("task %p", task);
 817
 818         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 819                                         SUPPLICANT_INTF ".Interface", "scan");
 820         if (message == NULL)
 821                 return -ENOMEM;
 822
 823         if (dbus_connection_send_with_reply(connection, message,
 824                                                 &call, TIMEOUT) == FALSE) {
 825                 connman_error("Failed to initiate scan");
 826                 dbus_message_unref(message);
 827                 return -EIO;
 828         }
 829
 830         dbus_message_unref(message);
 831
 832         return 0;
 833 }
 834
 835 static struct {
 836         char *name;
 837         char *value;
 838 } special_ssid[] = {
 839         { "<hidden>", "hidden"  },
 840         { "default",  "linksys" },
 841         { "wireless"  },
 842         { "linksys"   },
 843         { "netgear"   },
 844         { "dlink"     },
 845         { "2wire"     },
 846         { "compaq"    },
 847         { "tsunami"   },
 848         { "comcomcom", "3com"     },
 849         { "3Com",      "3com"     },
 850         { "Symbol",    "symbol"   },
 851         { "Motorola",  "motorola" },
 852         { "Wireless" , "wireless" },
 853         { "WLAN",      "wlan"     },
 854         { }
 855 };
 856
 857 static char *build_group(const char *addr, const char *name,
 858                         const unsigned char *ssid, unsigned int ssid_len,
 859                                         const char *mode, const char *security)
 860 {
 861         GString *str;
 862         unsigned int i;
 863
 864         if (addr == NULL)
 865                 return NULL;
 866
 867         str = g_string_sized_new((ssid_len * 2) + 24);
 868         if (str == NULL)
 869                 return NULL;
 870
 871         for (i = 0; special_ssid[i].name; i++) {
 872                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 873                         if (special_ssid[i].value == NULL)
 874                                 g_string_append_printf(str, "%s_%s",
 875                                                                 name, addr);
 876                         else
 877                                 g_string_append_printf(str, "%s_%s",
 878                                                 special_ssid[i].value, addr);
 879                         goto done;
 880                 }
 881         }
 882
 883         if (ssid_len > 0 && ssid[0] != '\0') {
 884                 for (i = 0; i < ssid_len; i++)
 885                         g_string_append_printf(str, "%02x", ssid[i]);
 886         } else
 887                 g_string_append_printf(str, "hidden_%s", addr);
 888
 889 done:
 890         g_string_append_printf(str, "_%s_%s", mode, security);
 891
 892         return g_string_free(str, FALSE);
 893 }
 894
 895 static void extract_addr(DBusMessageIter *value,
 896                                         struct supplicant_result *result)
 897 {
 898         DBusMessageIter array;
 899         struct ether_addr *eth;
 900         unsigned char *addr;
 901         int addr_len;
 902
 903         dbus_message_iter_recurse(value, &array);
 904         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 905
 906         if (addr_len != 6)
 907                 return;
 908
 909         result->addr = g_try_malloc(addr_len);
 910         if (result->addr == NULL)
 911                 return;
 912
 913         memcpy(result->addr, addr, addr_len);
 914         result->addr_len = addr_len;
 915
 916         result->path = g_try_malloc0(13);
 917         if (result->path == NULL)
 918                 return;
 919
 920         eth = (void *) addr;
 921
 922         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
 923                                                 eth->ether_addr_octet[0],
 924                                                 eth->ether_addr_octet[1],
 925                                                 eth->ether_addr_octet[2],
 926                                                 eth->ether_addr_octet[3],
 927                                                 eth->ether_addr_octet[4],
 928                                                 eth->ether_addr_octet[5]);
 929 }
 930
 931 static void extract_ssid(DBusMessageIter *value,
 932                                         struct supplicant_result *result)
 933 {
 934         DBusMessageIter array;
 935         unsigned char *ssid;
 936         int ssid_len, i;
 937         char *d;
 938
 939         dbus_message_iter_recurse(value, &array);
 940         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 941
 942         if (ssid_len < 1)
 943                 return;
 944
 945         result->ssid = g_try_malloc(ssid_len);
 946         if (result->ssid == NULL)
 947                 return;
 948
 949         memcpy(result->ssid, ssid, ssid_len);
 950         result->ssid_len = ssid_len;
 951
 952         result->name = g_try_malloc0(ssid_len + 1);
 953         if (result->name == NULL)
 954                 return;
 955
 956         d =  result->name;
 957         for (i = 0; i < ssid_len; i++)
 958                 if (g_ascii_isprint(ssid[i]))
 959                         *d++ = ssid[i];
 960
 961         *d = '\0';
 962 }
 963
 964 static void extract_wpaie(DBusMessageIter *value,
 965                                         struct supplicant_result *result)
 966 {
 967         DBusMessageIter array;
 968         unsigned char *ie;
 969         int ie_len;
 970
 971         dbus_message_iter_recurse(value, &array);
 972         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 973
 974         if (ie_len > 0)
 975                 result->has_wpa = TRUE;
 976 }
 977
 978 static void extract_rsnie(DBusMessageIter *value,
 979                                         struct supplicant_result *result)
 980 {
 981         DBusMessageIter array;
 982         unsigned char *ie;
 983         int ie_len;
 984
 985         dbus_message_iter_recurse(value, &array);
 986         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 987
 988         if (ie_len > 0)
 989                 result->has_rsn = TRUE;
 990 }
 991
 992 static void extract_wpsie(DBusMessageIter *value,
 993                                         struct supplicant_result *result)
 994 {
 995         DBusMessageIter array;
 996         unsigned char *ie;
 997         int ie_len;
 998
 999         dbus_message_iter_recurse(value, &array);
1000         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1001
1002         if (ie_len > 0)
1003                 result->has_wps = TRUE;
1004 }
1005
1006 static void extract_capabilites(DBusMessageIter *value,
1007                                         struct supplicant_result *result)
1008 {
1009         dbus_message_iter_get_basic(value, &result->capabilities);
1010
1011         if (result->capabilities & IEEE80211_CAP_ESS)
1012                 result->adhoc = FALSE;
1013         else if (result->capabilities & IEEE80211_CAP_IBSS)
1014                 result->adhoc = TRUE;
1015
1016         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1017                 result->has_wep = TRUE;
1018 }
1019
1020 static unsigned char calculate_strength(struct supplicant_result *result)
1021 {
1022         if (result->quality < 0) {
1023                 unsigned char strength;
1024
1025                 if (result->level > 0)
1026                         strength = 100 - result->level;
1027                 else
1028                         strength = 120 + result->level;
1029
1030                 if (strength > 100)
1031                         strength = 100;
1032
1033                 return strength;
1034         }
1035
1036         return result->quality;
1037 }
1038
1039 static unsigned short calculate_channel(struct supplicant_result *result)
1040 {
1041         if (result->frequency < 0)
1042                 return 0;
1043
1044         return (result->frequency - 2407) / 5;
1045 }
1046
1047 static void get_properties(struct supplicant_task *task);
1048
1049 static void properties_reply(DBusPendingCall *call, void *user_data)
1050 {
1051         struct supplicant_task *task = user_data;
1052         struct supplicant_result result;
1053         struct connman_network *network;
1054         DBusMessage *reply;
1055         DBusMessageIter array, dict;
1056         unsigned char strength;
1057         unsigned short channel, frequency;
1058         const char *mode, *security;
1059         char *group;
1060
1061         DBG("task %p", task);
1062
1063         reply = dbus_pending_call_steal_reply(call);
1064         if (reply == NULL) {
1065                 get_properties(task);
1066                 return;
1067         }
1068
1069         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1070                 dbus_message_unref(reply);
1071                 get_properties(task);
1072                 return;
1073         }
1074
1075         memset(&result, 0, sizeof(result));
1076         result.frequency = -1;
1077         result.quality = -1;
1078         result.level = 0;
1079         result.noise = 0;
1080
1081         dbus_message_iter_init(reply, &array);
1082
1083         dbus_message_iter_recurse(&array, &dict);
1084
1085         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1086                 DBusMessageIter entry, value;
1087                 const char *key;
1088
1089                 dbus_message_iter_recurse(&dict, &entry);
1090                 dbus_message_iter_get_basic(&entry, &key);
1091
1092                 dbus_message_iter_next(&entry);
1093
1094                 dbus_message_iter_recurse(&entry, &value);
1095
1096                 //type = dbus_message_iter_get_arg_type(&value);
1097                 //dbus_message_iter_get_basic(&value, &val);
1098
1099                 /*
1100                  * bssid        : a (97)
1101                  * ssid         : a (97)
1102                  * wpaie        : a (97)
1103                  * rsnie        : a (97)
1104                  * wpsie        : a (97)
1105                  * frequency    : i (105)
1106                  * capabilities : q (113)
1107                  * quality      : i (105)
1108                  * noise        : i (105)
1109                  * level        : i (105)
1110                  * maxrate      : i (105)
1111                  */
1112
1113                 if (g_str_equal(key, "bssid") == TRUE)
1114                         extract_addr(&value, &result);
1115                 else if (g_str_equal(key, "ssid") == TRUE)
1116                         extract_ssid(&value, &result);
1117                 else if (g_str_equal(key, "wpaie") == TRUE)
1118                         extract_wpaie(&value, &result);
1119                 else if (g_str_equal(key, "rsnie") == TRUE)
1120                         extract_rsnie(&value, &result);
1121                 else if (g_str_equal(key, "wpsie") == TRUE)
1122                         extract_wpsie(&value, &result);
1123                 else if (g_str_equal(key, "capabilities") == TRUE)
1124                         extract_capabilites(&value, &result);
1125                 else if (g_str_equal(key, "frequency") == TRUE)
1126                         dbus_message_iter_get_basic(&value, &result.frequency);
1127                 else if (g_str_equal(key, "quality") == TRUE)
1128                         dbus_message_iter_get_basic(&value, &result.quality);
1129                 else if (g_str_equal(key, "noise") == TRUE)
1130                         dbus_message_iter_get_basic(&value, &result.noise);
1131                 else if (g_str_equal(key, "level") == TRUE)
1132                         dbus_message_iter_get_basic(&value, &result.level);
1133                 else if (g_str_equal(key, "maxrate") == TRUE)
1134                         dbus_message_iter_get_basic(&value, &result.maxrate);
1135
1136                 dbus_message_iter_next(&dict);
1137         }
1138
1139         if (result.path == NULL)
1140                 goto done;
1141
1142         if (result.path[0] == '\0')
1143                 goto done;
1144
1145         if (result.frequency > 0 && result.frequency < 14)
1146                 result.frequency = 2407 + (5 * result.frequency);
1147         else if (result.frequency == 14)
1148                 result.frequency = 2484;
1149
1150         strength = calculate_strength(&result);
1151         channel  = calculate_channel(&result);
1152
1153         frequency = (result.frequency < 0) ? 0 : result.frequency;
1154
1155         if (result.has_rsn == TRUE)
1156                 security = "rsn";
1157         else if (result.has_wpa == TRUE)
1158                 security = "wpa";
1159         else if (result.has_wep == TRUE)
1160                 security = "wep";
1161         else
1162                 security = "none";
1163
1164         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1165
1166         group = build_group(result.path, result.name,
1167                                         result.ssid, result.ssid_len,
1168                                                         mode, security);
1169
1170         network = connman_device_get_network(task->device, result.path);
1171         if (network == NULL) {
1172                 int index;
1173
1174                 network = connman_network_create(result.path,
1175                                                 CONNMAN_NETWORK_TYPE_WIFI);
1176                 if (network == NULL)
1177                         goto done;
1178
1179                 index = connman_device_get_index(task->device);
1180                 connman_network_set_index(network, index);
1181
1182                 connman_network_set_protocol(network,
1183                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1184
1185                 connman_network_set_address(network, result.addr,
1186                                                         result.addr_len);
1187
1188                 if (connman_device_add_network(task->device, network) < 0) {
1189                         connman_network_unref(network);
1190                         goto done;
1191                 }
1192         }
1193
1194         if (result.name != NULL && result.name[0] != '\0')
1195                 connman_network_set_name(network, result.name);
1196
1197         connman_network_set_blob(network, "WiFi.SSID",
1198                                                 result.ssid, result.ssid_len);
1199
1200         connman_network_set_string(network, "WiFi.Mode", mode);
1201
1202         DBG("%s (%s %s) strength %d (%s)",
1203                                 result.name, mode, security, strength,
1204                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1205
1206         connman_network_set_available(network, TRUE);
1207         connman_network_set_strength(network, strength);
1208
1209         connman_network_set_uint16(network, "Frequency", frequency);
1210         connman_network_set_uint16(network, "WiFi.Channel", channel);
1211         connman_network_set_string(network, "WiFi.Security", security);
1212
1213         connman_network_set_group(network, group);
1214
1215         g_free(group);
1216
1217 done:
1218         g_free(result.path);
1219         g_free(result.addr);
1220         g_free(result.name);
1221         g_free(result.ssid);
1222
1223         dbus_message_unref(reply);
1224
1225         get_properties(task);
1226 }
1227
1228 static void get_properties(struct supplicant_task *task)
1229 {
1230         DBusMessage *message;
1231         DBusPendingCall *call;
1232         char *path;
1233
1234         path = g_slist_nth_data(task->scan_results, 0);
1235         if (path == NULL)
1236                 goto noscan;
1237
1238         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1239                                                 SUPPLICANT_INTF ".BSSID",
1240                                                                 "properties");
1241
1242         task->scan_results = g_slist_remove(task->scan_results, path);
1243         g_free(path);
1244
1245         if (message == NULL)
1246                 goto noscan;
1247
1248         if (dbus_connection_send_with_reply(connection, message,
1249                                                 &call, TIMEOUT) == FALSE) {
1250                 connman_error("Failed to get network properties");
1251                 dbus_message_unref(message);
1252                 goto noscan;
1253         }
1254
1255         if (call == NULL) {
1256                 connman_error("D-Bus connection not available");
1257                 dbus_message_unref(message);
1258                 goto noscan;
1259         }
1260
1261         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1262
1263         dbus_message_unref(message);
1264
1265         return;
1266
1267 noscan:
1268         if (task->noscan == FALSE)
1269                 connman_device_set_scanning(task->device, FALSE);
1270 }
1271
1272 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1273 {
1274         struct supplicant_task *task = user_data;
1275         DBusMessage *reply;
1276         DBusError error;
1277         char **results;
1278         int i, num_results;
1279
1280         DBG("task %p", task);
1281
1282         reply = dbus_pending_call_steal_reply(call);
1283         if (reply == NULL)
1284                 goto noscan;
1285
1286         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1287                 goto done;
1288
1289         dbus_error_init(&error);
1290
1291         if (dbus_message_get_args(reply, &error,
1292                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1293                                                 &results, &num_results,
1294                                                 DBUS_TYPE_INVALID) == FALSE) {
1295                 if (dbus_error_is_set(&error) == TRUE) {
1296                         connman_error("%s", error.message);
1297                         dbus_error_free(&error);
1298                 } else
1299                         connman_error("Wrong arguments for scan result");
1300                 goto done;
1301         }
1302
1303         if (num_results == 0)
1304                 goto done;
1305
1306         for (i = 0; i < num_results; i++) {
1307                 char *path = g_strdup(results[i]);
1308                 if (path == NULL)
1309                         continue;
1310
1311                 task->scan_results = g_slist_append(task->scan_results, path);
1312         }
1313
1314         g_strfreev(results);
1315
1316         dbus_message_unref(reply);
1317
1318         get_properties(task);
1319
1320         return;
1321
1322 done:
1323         dbus_message_unref(reply);
1324
1325 noscan:
1326         if (task->noscan == FALSE)
1327                 connman_device_set_scanning(task->device, FALSE);
1328 }
1329
1330 static void scan_results_available(struct supplicant_task *task)
1331 {
1332         DBusMessage *message;
1333         DBusPendingCall *call;
1334
1335         DBG("task %p", task);
1336
1337         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1338                                                 SUPPLICANT_INTF ".Interface",
1339                                                         "scanResults");
1340         if (message == NULL)
1341                 return;
1342
1343         if (dbus_connection_send_with_reply(connection, message,
1344                                                 &call, TIMEOUT) == FALSE) {
1345                 connman_error("Failed to request scan result");
1346                 goto done;
1347         }
1348
1349         if (task->noscan == FALSE)
1350                 connman_device_set_scanning(task->device, TRUE);
1351
1352         if (call == NULL) {
1353                 connman_error("D-Bus connection not available");
1354                 goto done;
1355         }
1356
1357         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1358
1359 done:
1360         dbus_message_unref(message);
1361 }
1362
1363 static enum supplicant_state string2state(const char *state)
1364 {
1365         if (g_str_equal(state, "INACTIVE") == TRUE)
1366                 return WPA_INACTIVE;
1367         else if (g_str_equal(state, "SCANNING") == TRUE)
1368                 return WPA_SCANNING;
1369         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1370                 return WPA_ASSOCIATING;
1371         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1372                 return WPA_ASSOCIATED;
1373         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1374                 return WPA_GROUP_HANDSHAKE;
1375         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1376                 return WPA_4WAY_HANDSHAKE;
1377         else if (g_str_equal(state, "COMPLETED") == TRUE)
1378                 return WPA_COMPLETED;
1379         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1380                 return WPA_DISCONNECTED;
1381         else
1382                 return WPA_INVALID;
1383 }
1384
1385 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1386 {
1387         DBusError error;
1388         const char *newstate, *oldstate;
1389         enum supplicant_state state;
1390
1391         dbus_error_init(&error);
1392
1393         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1394                                                 DBUS_TYPE_STRING, &oldstate,
1395                                                 DBUS_TYPE_INVALID) == FALSE) {
1396                 if (dbus_error_is_set(&error) == TRUE) {
1397                         connman_error("%s", error.message);
1398                         dbus_error_free(&error);
1399                 } else
1400                         connman_error("Wrong arguments for state change");
1401                 return;
1402         }
1403
1404         DBG("state %s ==> %s", oldstate, newstate);
1405
1406         state = string2state(newstate);
1407         if (state == WPA_INVALID)
1408                 return;
1409
1410         task->state = state;
1411
1412         switch (task->state) {
1413         case WPA_SCANNING:
1414                 task->noscan = TRUE;
1415                 connman_device_set_scanning(task->device, TRUE);
1416                 break;
1417         case WPA_ASSOCIATING:
1418         case WPA_ASSOCIATED:
1419         case WPA_4WAY_HANDSHAKE:
1420         case WPA_GROUP_HANDSHAKE:
1421                 task->noscan = TRUE;
1422                 break;
1423         case WPA_COMPLETED:
1424         case WPA_DISCONNECTED:
1425                 task->noscan = FALSE;
1426                 break;
1427         case WPA_INACTIVE:
1428                 task->noscan = FALSE;
1429                 connman_device_set_scanning(task->device, FALSE);
1430                 break;
1431         case WPA_INVALID:
1432                 break;
1433         }
1434
1435         if (task->network == NULL)
1436                 return;
1437
1438         switch (task->state) {
1439         case WPA_COMPLETED:
1440                 /* carrier on */
1441                 connman_network_set_connected(task->network, TRUE);
1442                 connman_device_set_scanning(task->device, FALSE);
1443                 break;
1444         case WPA_DISCONNECTED:
1445                 /* carrier off */
1446                 connman_network_set_connected(task->network, FALSE);
1447                 connman_device_set_scanning(task->device, FALSE);
1448                 break;
1449         case WPA_ASSOCIATING:
1450                 connman_network_set_associating(task->network, TRUE);
1451                 break;
1452         default:
1453                 connman_network_set_associating(task->network, FALSE);
1454                 break;
1455         }
1456 }
1457
1458 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1459                                                 DBusMessage *msg, void *data)
1460 {
1461         struct supplicant_task *task;
1462         const char *member, *path;
1463
1464         if (dbus_message_has_interface(msg,
1465                                 SUPPLICANT_INTF ".Interface") == FALSE)
1466                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1467
1468         member = dbus_message_get_member(msg);
1469         if (member == NULL)
1470                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1471
1472         path = dbus_message_get_path(msg);
1473         if (path == NULL)
1474                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1475
1476         task = find_task_by_path(path);
1477         if (task == NULL)
1478                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1479
1480         DBG("task %p member %s", task, member);
1481
1482         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1483                 scan_results_available(task);
1484         else if (g_str_equal(member, "StateChange") == TRUE)
1485                 state_change(task, msg);
1486
1487         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1488 }
1489
1490 int supplicant_start(struct connman_device *device)
1491 {
1492         struct supplicant_task *task;
1493
1494         DBG("device %p", device);
1495
1496         task = g_try_new0(struct supplicant_task, 1);
1497         if (task == NULL)
1498                 return -ENOMEM;
1499
1500         task->ifindex = connman_device_get_index(device);
1501         task->ifname = connman_inet_ifname(task->ifindex);
1502
1503         if (task->ifname == NULL) {
1504                 g_free(task);
1505                 return -ENOMEM;
1506         }
1507
1508         task->device = connman_device_ref(device);
1509
1510         task->created = FALSE;
1511         task->noscan = FALSE;
1512         task->state = WPA_INVALID;
1513
1514         task_list = g_slist_append(task_list, task);
1515
1516         return create_interface(task);
1517 }
1518
1519 int supplicant_stop(struct connman_device *device)
1520 {
1521         int index = connman_device_get_index(device);
1522         struct supplicant_task *task;
1523
1524         DBG("device %p", device);
1525
1526         task = find_task_by_index(index);
1527         if (task == NULL)
1528                 return -ENODEV;
1529
1530         task_list = g_slist_remove(task_list, task);
1531
1532         disable_network(task);
1533
1534         remove_network(task);
1535
1536         return remove_interface(task);
1537 }
1538
1539 int supplicant_scan(struct connman_device *device)
1540 {
1541         int index = connman_device_get_index(device);
1542         struct supplicant_task *task;
1543         int err;
1544
1545         DBG("device %p", device);
1546
1547         task = find_task_by_index(index);
1548         if (task == NULL)
1549                 return -ENODEV;
1550
1551         switch (task->state) {
1552         case WPA_SCANNING:
1553                 return -EALREADY;
1554         case WPA_ASSOCIATING:
1555         case WPA_ASSOCIATED:
1556         case WPA_4WAY_HANDSHAKE:
1557         case WPA_GROUP_HANDSHAKE:
1558                 return -EBUSY;
1559         default:
1560                 break;
1561         }
1562
1563         err = initiate_scan(task);
1564
1565         return 0;
1566 }
1567
1568 int supplicant_connect(struct connman_network *network)
1569 {
1570         struct supplicant_task *task;
1571         const char *address, *security, *passphrase;
1572         const void *ssid;
1573         unsigned int ssid_len;
1574         int index;
1575
1576         DBG("network %p", network);
1577
1578         address = connman_network_get_string(network, "Address");
1579         security = connman_network_get_string(network, "WiFi.Security");
1580         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1581
1582         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1583
1584         DBG("address %s security %s passphrase %s",
1585                                         address, security, passphrase);
1586
1587         if (security == NULL && passphrase == NULL)
1588                 return -EINVAL;
1589
1590         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1591                 return -EINVAL;
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         task->network = connman_network_ref(network);
1600
1601         add_network(task);
1602
1603         select_network(task);
1604         disable_network(task);
1605
1606         set_network(task, ssid, ssid_len, address, security, passphrase);
1607
1608         enable_network(task);
1609
1610         connman_network_set_associating(task->network, TRUE);
1611
1612         return 0;
1613 }
1614
1615 int supplicant_disconnect(struct connman_network *network)
1616 {
1617         struct supplicant_task *task;
1618         int index;
1619
1620         DBG("network %p", network);
1621
1622         index = connman_network_get_index(network);
1623
1624         task = find_task_by_index(index);
1625         if (task == NULL)
1626                 return -ENODEV;
1627
1628         disable_network(task);
1629
1630         remove_network(task);
1631
1632         connman_network_set_connected(task->network, FALSE);
1633
1634         connman_network_unref(task->network);
1635
1636         return 0;
1637 }
1638
1639 static void supplicant_activate(DBusConnection *conn)
1640 {
1641         DBusMessage *message;
1642
1643         DBG("conn %p", conn);
1644
1645         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1646                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1647         if (message == NULL)
1648                 return;
1649
1650         dbus_message_set_no_reply(message, TRUE);
1651
1652         dbus_connection_send(conn, message, NULL);
1653
1654         dbus_message_unref(message);
1655 }
1656
1657 static GSList *driver_list = NULL;
1658
1659 static void supplicant_probe(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->probe)
1671                         driver->probe();
1672         }
1673 }
1674
1675 static void supplicant_remove(DBusConnection *conn, void *user_data)
1676 {
1677         GSList *list;
1678
1679         DBG("conn %p", conn);
1680
1681         for (list = driver_list; list; list = list->next) {
1682                 struct supplicant_driver *driver = list->data;
1683
1684                 DBG("driver %p name %s", driver, driver->name);
1685
1686                 if (driver->remove)
1687                         driver->remove();
1688         }
1689 }
1690
1691 static const char *supplicant_rule = "type=signal,"
1692                                 "interface=" SUPPLICANT_INTF ".Interface";
1693 static guint watch;
1694
1695 static int supplicant_create(void)
1696 {
1697         if (g_slist_length(driver_list) > 0)
1698                 return 0;
1699
1700         connection = connman_dbus_get_connection();
1701         if (connection == NULL)
1702                 return -EIO;
1703
1704         DBG("connection %p", connection);
1705
1706         if (dbus_connection_add_filter(connection,
1707                                 supplicant_filter, NULL, NULL) == FALSE) {
1708                 connection = connman_dbus_get_connection();
1709                 return -EIO;
1710         }
1711
1712         dbus_bus_add_match(connection, supplicant_rule, NULL);
1713         dbus_connection_flush(connection);
1714
1715         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1716                         supplicant_probe, supplicant_remove, NULL, NULL);
1717
1718         return 0;
1719 }
1720
1721 static void supplicant_destroy(void)
1722 {
1723         if (g_slist_length(driver_list) > 0)
1724                 return;
1725
1726         DBG("connection %p", connection);
1727
1728         if (watch > 0)
1729                 g_dbus_remove_watch(connection, watch);
1730
1731         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1732         dbus_connection_flush(connection);
1733
1734         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1735
1736         dbus_connection_unref(connection);
1737         connection = NULL;
1738 }
1739
1740 int supplicant_register(struct supplicant_driver *driver)
1741 {
1742         int err;
1743
1744         DBG("driver %p name %s", driver, driver->name);
1745
1746         err = supplicant_create();
1747         if (err < 0)
1748                 return err;
1749
1750         driver_list = g_slist_append(driver_list, driver);
1751
1752         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1753                 supplicant_probe(connection, NULL);
1754         else
1755                 supplicant_activate(connection);
1756
1757         return 0;
1758 }
1759
1760 void supplicant_unregister(struct supplicant_driver *driver)
1761 {
1762         DBG("driver %p name %s", driver, driver->name);
1763
1764         supplicant_remove(connection, NULL);
1765
1766         driver_list = g_slist_remove(driver_list, driver);
1767
1768         supplicant_destroy();
1769 }