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 <unistd.h>
  28 #include <errno.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <sys/ioctl.h>
  32 #include <sys/socket.h>
  33 #include <linux/if_arp.h>
  34 #include <linux/wireless.h>
  35 #include <net/ethernet.h>
  36
  37 #include <gdbus.h>
  38
  39 #define CONNMAN_API_SUBJECT_TO_CHANGE
  40 #include <connman/device.h>
  41 #include <connman/option.h>
  42 #include <connman/inet.h>
  43 #include <connman/dbus.h>
  44 #include <connman/log.h>
  45
  46 #include "supplicant.h"
  47
  48 #define TIMEOUT 5000
  49
  50 #define IEEE80211_CAP_ESS       0x0001
  51 #define IEEE80211_CAP_IBSS      0x0002
  52 #define IEEE80211_CAP_PRIVACY   0x0010
  53
  54 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  55 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  56 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  57
  58 /* Taken from "WPA Supplicant - Common definitions" */
  59 enum supplicant_state {
  60         /**
  61          * WPA_DISCONNECTED - Disconnected state
  62          *
  63          * This state indicates that client is not associated, but is likely to
  64          * start looking for an access point. This state is entered when a
  65          * connection is lost.
  66          */
  67         WPA_DISCONNECTED,
  68
  69         /**
  70          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  71          *
  72          * This state is entered if there are no enabled networks in the
  73          * configuration. wpa_supplicant is not trying to associate with a new
  74          * network and external interaction (e.g., ctrl_iface call to add or
  75          * enable a network) is needed to start association.
  76          */
  77         WPA_INACTIVE,
  78
  79         /**
  80          * WPA_SCANNING - Scanning for a network
  81          *
  82          * This state is entered when wpa_supplicant starts scanning for a
  83          * network.
  84          */
  85         WPA_SCANNING,
  86
  87         /**
  88          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  89          *
  90          * This state is entered when wpa_supplicant has found a suitable BSS
  91          * to associate with and the driver is configured to try to associate
  92          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  93          * state is entered when the driver is configured to try to associate
  94          * with a network using the configured SSID and security policy.
  95          */
  96         WPA_ASSOCIATING,
  97
  98         /**
  99          * WPA_ASSOCIATED - Association completed
 100          *
 101          * This state is entered when the driver reports that association has
 102          * been successfully completed with an AP. If IEEE 802.1X is used
 103          * (with or without WPA/WPA2), wpa_supplicant remains in this state
 104          * until the IEEE 802.1X/EAPOL authentication has been completed.
 105          */
 106         WPA_ASSOCIATED,
 107
 108         /**
 109          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 110          *
 111          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 112          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 113          * frame after association. In case of WPA-EAP, this state is entered
 114          * when the IEEE 802.1X/EAPOL authentication has been completed.
 115          */
 116         WPA_4WAY_HANDSHAKE,
 117
 118         /**
 119          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 120          *
 121          * This state is entered when 4-Way Key Handshake has been completed
 122          * (i.e., when the supplicant sends out message 4/4) and when Group
 123          * Key rekeying is started by the AP (i.e., when supplicant receives
 124          * message 1/2).
 125          */
 126         WPA_GROUP_HANDSHAKE,
 127
 128         /**
 129          * WPA_COMPLETED - All authentication completed
 130          *
 131          * This state is entered when the full authentication process is
 132          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 133          * successfully completed. With WPA, this state is entered after the
 134          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 135          * completed after dynamic keys are received (or if not used, after
 136          * the EAP authentication has been completed). With static WEP keys and
 137          * plaintext connections, this state is entered when an association
 138          * has been completed.
 139          *
 140          * This state indicates that the supplicant has completed its
 141          * processing for the association phase and that data connection is
 142          * fully configured.
 143          */
 144         WPA_COMPLETED,
 145
 146         /**
 147          * WPA_INVALID - Invalid state (parsing error)
 148          *
 149          * This state is returned if the string input is invalid. It is not
 150          * an official wpa_supplicant state.
 151          */
 152         WPA_INVALID,
 153 };
 154
 155 struct supplicant_result {
 156         char *path;
 157         char *name;
 158         unsigned char *addr;
 159         unsigned int addr_len;
 160         unsigned char *ssid;
 161         unsigned int ssid_len;
 162         dbus_uint16_t capabilities;
 163         gboolean adhoc;
 164         gboolean has_wep;
 165         gboolean has_wpa;
 166         gboolean has_rsn;
 167         gboolean has_wps;
 168         dbus_int32_t frequency;
 169         dbus_int32_t quality;
 170         dbus_int32_t noise;
 171         dbus_int32_t level;
 172         dbus_int32_t maxrate;
 173 };
 174
 175 struct supplicant_task {
 176         int ifindex;
 177         char *ifname;
 178         struct connman_device *device;
 179         struct connman_network *network;
 180         struct connman_network *pending_network;
 181         char *path;
 182         char *netpath;
 183         gboolean created;
 184         enum supplicant_state state;
 185         gboolean noscan;
 186         GSList *scan_results;
 187         struct iw_range *range;
 188         gboolean disconnecting;
 189 };
 190
 191 static GSList *task_list = NULL;
 192
 193 static DBusConnection *connection;
 194
 195 static void free_task(struct supplicant_task *task)
 196 {
 197         DBG("task %p", task);
 198
 199         g_free(task->ifname);
 200         g_free(task->path);
 201         g_free(task);
 202 }
 203
 204 static struct supplicant_task *find_task_by_index(int index)
 205 {
 206         GSList *list;
 207
 208         for (list = task_list; list; list = list->next) {
 209                 struct supplicant_task *task = list->data;
 210
 211                 if (task->ifindex == index)
 212                         return task;
 213         }
 214
 215         return NULL;
 216 }
 217
 218 static struct supplicant_task *find_task_by_path(const char *path)
 219 {
 220         GSList *list;
 221
 222         for (list = task_list; list; list = list->next) {
 223                 struct supplicant_task *task = list->data;
 224
 225                 if (g_strcmp0(task->path, path) == 0)
 226                         return task;
 227         }
 228
 229         return NULL;
 230 }
 231
 232 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 233 {
 234         struct supplicant_task *task = user_data;
 235         DBusMessage *reply;
 236         DBusError error;
 237         const char *path;
 238
 239         DBG("task %p", task);
 240
 241         reply = dbus_pending_call_steal_reply(call);
 242         if (reply == NULL)
 243                 return;
 244
 245         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 246                 goto failed;
 247
 248         dbus_error_init(&error);
 249
 250         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 251                                                 DBUS_TYPE_INVALID) == FALSE) {
 252                 if (dbus_error_is_set(&error) == TRUE) {
 253                         connman_error("%s", error.message);
 254                         dbus_error_free(&error);
 255                 } else
 256                         connman_error("Wrong arguments for add interface");
 257                 goto failed;
 258         }
 259
 260         DBG("path %s", path);
 261
 262         task->path = g_strdup(path);
 263         task->created = TRUE;
 264
 265         connman_device_set_powered(task->device, TRUE);
 266
 267         dbus_message_unref(reply);
 268
 269         return;
 270
 271 failed:
 272         task_list = g_slist_remove(task_list, task);
 273
 274         connman_device_unref(task->device);
 275
 276         free_task(task);
 277 }
 278
 279 static int add_interface(struct supplicant_task *task)
 280 {
 281         const char *driver = connman_option_get_string("wifi");
 282         DBusMessage *message;
 283         DBusMessageIter array, dict;
 284         DBusPendingCall *call;
 285
 286         DBG("task %p", task);
 287
 288         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 289                                         SUPPLICANT_INTF, "addInterface");
 290         if (message == NULL)
 291                 return -ENOMEM;
 292
 293         dbus_message_iter_init_append(message, &array);
 294
 295         dbus_message_iter_append_basic(&array,
 296                                         DBUS_TYPE_STRING, &task->ifname);
 297
 298         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 299                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 300                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 301                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 302
 303         connman_dbus_dict_append_variant(&dict, "driver",
 304                                                 DBUS_TYPE_STRING, &driver);
 305
 306         dbus_message_iter_close_container(&array, &dict);
 307
 308         if (dbus_connection_send_with_reply(connection, message,
 309                                                 &call, TIMEOUT) == FALSE) {
 310                 connman_error("Failed to add interface");
 311                 dbus_message_unref(message);
 312                 return -EIO;
 313         }
 314
 315         if (call == NULL) {
 316                 connman_error("D-Bus connection not available");
 317                 dbus_message_unref(message);
 318                 return -EIO;
 319         }
 320
 321         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 322
 323         dbus_message_unref(message);
 324
 325         return -EINPROGRESS;
 326 }
 327
 328 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 329 {
 330         struct supplicant_task *task = user_data;
 331         DBusMessage *reply;
 332         DBusError error;
 333         const char *path;
 334
 335         DBG("task %p", task);
 336
 337         reply = dbus_pending_call_steal_reply(call);
 338         if (reply == NULL)
 339                 return;
 340
 341         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 342                 add_interface(task);
 343                 goto done;
 344         }
 345
 346         dbus_error_init(&error);
 347
 348         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 349                                                 DBUS_TYPE_INVALID) == FALSE) {
 350                 if (dbus_error_is_set(&error) == TRUE) {
 351                         connman_error("%s", error.message);
 352                         dbus_error_free(&error);
 353                 } else
 354                         connman_error("Wrong arguments for get interface");
 355                 goto done;
 356         }
 357
 358         DBG("path %s", path);
 359
 360         task->path = g_strdup(path);
 361         task->created = FALSE;
 362
 363         connman_device_set_powered(task->device, TRUE);
 364
 365 done:
 366         dbus_message_unref(reply);
 367 }
 368
 369 static int create_interface(struct supplicant_task *task)
 370 {
 371         DBusMessage *message;
 372         DBusPendingCall *call;
 373
 374         DBG("task %p", task);
 375
 376         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 377                                         SUPPLICANT_INTF, "getInterface");
 378         if (message == NULL)
 379                 return -ENOMEM;
 380
 381         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 382                                                         DBUS_TYPE_INVALID);
 383
 384         if (dbus_connection_send_with_reply(connection, message,
 385                                                 &call, TIMEOUT) == FALSE) {
 386                 connman_error("Failed to get interface");
 387                 dbus_message_unref(message);
 388                 return -EIO;
 389         }
 390
 391         if (call == NULL) {
 392                 connman_error("D-Bus connection not available");
 393                 dbus_message_unref(message);
 394                 return -EIO;
 395         }
 396
 397         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 398
 399         dbus_message_unref(message);
 400
 401         return -EINPROGRESS;
 402 }
 403
 404 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 405 {
 406         struct supplicant_task *task = user_data;
 407         DBusMessage *reply;
 408
 409         DBG("task %p", task);
 410
 411         reply = dbus_pending_call_steal_reply(call);
 412
 413         connman_device_set_powered(task->device, FALSE);
 414
 415         connman_device_unref(task->device);
 416
 417         connman_inet_ifdown(task->ifindex);
 418
 419         free_task(task);
 420
 421         dbus_message_unref(reply);
 422 }
 423
 424 static int remove_interface(struct supplicant_task *task)
 425 {
 426         DBusMessage *message;
 427         DBusPendingCall *call;
 428
 429         DBG("task %p", task);
 430
 431         if (task->created == FALSE) {
 432                 connman_device_set_powered(task->device, FALSE);
 433                 return 0;
 434         }
 435
 436         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 437                                         SUPPLICANT_INTF, "removeInterface");
 438         if (message == NULL)
 439                 return -ENOMEM;
 440
 441         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 442                                                         DBUS_TYPE_INVALID);
 443
 444         if (dbus_connection_send_with_reply(connection, message,
 445                                                 &call, TIMEOUT) == FALSE) {
 446                 connman_error("Failed to remove interface");
 447                 dbus_message_unref(message);
 448                 return -EIO;
 449         }
 450
 451         if (call == NULL) {
 452                 connman_error("D-Bus connection not available");
 453                 dbus_message_unref(message);
 454                 return -EIO;
 455         }
 456
 457         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 458
 459         dbus_message_unref(message);
 460
 461         return -EINPROGRESS;
 462 }
 463
 464 #if 0
 465 static int set_ap_scan(struct supplicant_task *task)
 466 {
 467         DBusMessage *message, *reply;
 468         DBusError error;
 469         guint32 ap_scan = 1;
 470
 471         DBG("task %p", task);
 472
 473         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 474                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 475         if (message == NULL)
 476                 return -ENOMEM;
 477
 478         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 479                                                         DBUS_TYPE_INVALID);
 480
 481         dbus_error_init(&error);
 482
 483         reply = dbus_connection_send_with_reply_and_block(connection,
 484                                                         message, -1, &error);
 485         if (reply == NULL) {
 486                 if (dbus_error_is_set(&error) == TRUE) {
 487                         connman_error("%s", error.message);
 488                         dbus_error_free(&error);
 489                 } else
 490                         connman_error("Failed to set AP scan");
 491                 dbus_message_unref(message);
 492                 return -EIO;
 493         }
 494
 495         dbus_message_unref(message);
 496
 497         dbus_message_unref(reply);
 498
 499         return 0;
 500 }
 501 #endif
 502
 503 static int add_network(struct supplicant_task *task)
 504 {
 505         DBusMessage *message, *reply;
 506         DBusError error;
 507         const char *path;
 508
 509         DBG("task %p", task);
 510
 511         if (task->netpath != NULL)
 512                 return -EALREADY;
 513
 514         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 515                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 516         if (message == NULL)
 517                 return -ENOMEM;
 518
 519         dbus_error_init(&error);
 520
 521         reply = dbus_connection_send_with_reply_and_block(connection,
 522                                                         message, -1, &error);
 523         if (reply == NULL) {
 524                 if (dbus_error_is_set(&error) == TRUE) {
 525                         connman_error("%s", error.message);
 526                         dbus_error_free(&error);
 527                 } else
 528                         connman_error("Failed to add network");
 529                 dbus_message_unref(message);
 530                 return -EIO;
 531         }
 532
 533         dbus_message_unref(message);
 534
 535         dbus_error_init(&error);
 536
 537         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 538                                                 DBUS_TYPE_INVALID) == FALSE) {
 539                 if (dbus_error_is_set(&error) == TRUE) {
 540                         connman_error("%s", error.message);
 541                         dbus_error_free(&error);
 542                 } else
 543                         connman_error("Wrong arguments for network");
 544                 dbus_message_unref(reply);
 545                 return -EIO;
 546         }
 547
 548         DBG("path %s", path);
 549
 550         task->netpath = g_strdup(path);
 551
 552         dbus_message_unref(reply);
 553
 554         return 0;
 555 }
 556
 557 static int remove_network(struct supplicant_task *task)
 558 {
 559         DBusMessage *message, *reply;
 560         DBusError error;
 561
 562         DBG("task %p", task);
 563
 564         if (task->netpath == NULL)
 565                 return -EINVAL;
 566
 567         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 568                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 569         if (message == NULL)
 570                 return -ENOMEM;
 571
 572         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 573                                                         DBUS_TYPE_INVALID);
 574
 575         dbus_error_init(&error);
 576
 577         reply = dbus_connection_send_with_reply_and_block(connection,
 578                                                         message, -1, &error);
 579         if (reply == NULL) {
 580                 if (dbus_error_is_set(&error) == TRUE) {
 581                         connman_error("%s", error.message);
 582                         dbus_error_free(&error);
 583                 } else
 584                         connman_error("Failed to remove network");
 585                 dbus_message_unref(message);
 586                 return -EIO;
 587         }
 588
 589         dbus_message_unref(message);
 590
 591         dbus_message_unref(reply);
 592
 593         g_free(task->netpath);
 594         task->netpath = NULL;
 595
 596         return 0;
 597 }
 598
 599 static int select_network(struct supplicant_task *task)
 600 {
 601         DBusMessage *message, *reply;
 602         DBusError error;
 603
 604         DBG("task %p", task);
 605
 606         if (task->netpath == NULL)
 607                 return -EINVAL;
 608
 609         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 610                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 611         if (message == NULL)
 612                 return -ENOMEM;
 613
 614         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 615                                                         DBUS_TYPE_INVALID);
 616
 617         dbus_error_init(&error);
 618
 619         reply = dbus_connection_send_with_reply_and_block(connection,
 620                                                         message, -1, &error);
 621         if (reply == NULL) {
 622                 if (dbus_error_is_set(&error) == TRUE) {
 623                         connman_error("%s", error.message);
 624                         dbus_error_free(&error);
 625                 } else
 626                         connman_error("Failed to select network");
 627                 dbus_message_unref(message);
 628                 return -EIO;
 629         }
 630
 631         dbus_message_unref(message);
 632
 633         dbus_message_unref(reply);
 634
 635         return 0;
 636 }
 637
 638 static int enable_network(struct supplicant_task *task)
 639 {
 640         DBusMessage *message, *reply;
 641         DBusError error;
 642
 643         DBG("task %p", task);
 644
 645         if (task->netpath == NULL)
 646                 return -EINVAL;
 647
 648         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 649                                         SUPPLICANT_INTF ".Network", "enable");
 650         if (message == NULL)
 651                 return -ENOMEM;
 652
 653         dbus_error_init(&error);
 654
 655         reply = dbus_connection_send_with_reply_and_block(connection,
 656                                                         message, -1, &error);
 657         if (reply == NULL) {
 658                 if (dbus_error_is_set(&error) == TRUE) {
 659                         connman_error("%s", error.message);
 660                         dbus_error_free(&error);
 661                 } else
 662                         connman_error("Failed to enable network");
 663                 dbus_message_unref(message);
 664                 return -EIO;
 665         }
 666
 667         dbus_message_unref(message);
 668
 669         dbus_message_unref(reply);
 670
 671         return 0;
 672 }
 673
 674 static int disable_network(struct supplicant_task *task)
 675 {
 676         DBusMessage *message, *reply;
 677         DBusError error;
 678
 679         DBG("task %p", task);
 680
 681         if (task->netpath == NULL)
 682                 return -EINVAL;
 683
 684         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 685                                         SUPPLICANT_INTF ".Network", "disable");
 686         if (message == NULL)
 687                 return -ENOMEM;
 688
 689         dbus_error_init(&error);
 690
 691         reply = dbus_connection_send_with_reply_and_block(connection,
 692                                                         message, -1, &error);
 693         if (reply == NULL) {
 694                 if (dbus_error_is_set(&error) == TRUE) {
 695                         connman_error("%s", error.message);
 696                         dbus_error_free(&error);
 697                 } else
 698                         connman_error("Failed to disable network");
 699                 dbus_message_unref(message);
 700                 return -EIO;
 701         }
 702
 703         dbus_message_unref(message);
 704
 705         dbus_message_unref(reply);
 706
 707         return 0;
 708 }
 709
 710 static int set_network(struct supplicant_task *task,
 711                                 const unsigned char *network, int len,
 712                                 const char *address, const char *security,
 713                                                         const char *passphrase)
 714 {
 715         DBusMessage *message, *reply;
 716         DBusMessageIter array, dict;
 717         DBusError error;
 718         dbus_uint32_t scan_ssid = 1;
 719
 720         DBG("task %p", task);
 721
 722         if (task->netpath == NULL)
 723                 return -EINVAL;
 724
 725         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 726                                         SUPPLICANT_INTF ".Network", "set");
 727         if (message == NULL)
 728                 return -ENOMEM;
 729
 730         dbus_message_iter_init_append(message, &array);
 731
 732         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 733                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 734                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 735                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 736
 737         connman_dbus_dict_append_variant(&dict, "scan_ssid",
 738                                          DBUS_TYPE_UINT32, &scan_ssid);
 739
 740         if (address)
 741                 connman_dbus_dict_append_variant(&dict, "bssid",
 742                                                 DBUS_TYPE_STRING, &address);
 743
 744         connman_dbus_dict_append_array(&dict, "ssid",
 745                                         DBUS_TYPE_BYTE, &network, len);
 746
 747         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 748                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 749                 const char *key_mgmt = "WPA-PSK";
 750                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 751                                                 DBUS_TYPE_STRING, &key_mgmt);
 752
 753                 if (passphrase && strlen(passphrase) > 0)
 754                         connman_dbus_dict_append_variant(&dict, "psk",
 755                                                 DBUS_TYPE_STRING, &passphrase);
 756         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 757                 const char *key_mgmt = "NONE", *index = "0";
 758                 const char *auth_alg = "OPEN SHARED";
 759                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 760                                                 DBUS_TYPE_STRING, &key_mgmt);
 761
 762                 connman_dbus_dict_append_variant(&dict, "auth_alg",
 763                                                 DBUS_TYPE_STRING, &auth_alg);
 764
 765                 if (passphrase) {
 766                         int size = strlen(passphrase);
 767                         if (size == 10 || size == 26) {
 768                                 unsigned char *key = malloc(13);
 769                                 char tmp[3];
 770                                 int i;
 771                                 memset(tmp, 0, sizeof(tmp));
 772                                 if (key == NULL)
 773                                         size = 0;
 774                                 for (i = 0; i < size / 2; i++) {
 775                                         memcpy(tmp, passphrase + (i * 2), 2);
 776                                         key[i] = (unsigned char) strtol(tmp,
 777                                                                 NULL, 16);
 778                                 }
 779                                 connman_dbus_dict_append_array(&dict,
 780                                                 "wep_key0", DBUS_TYPE_BYTE,
 781                                                         &key, size / 2);
 782                                 free(key);
 783                         } else
 784                                 connman_dbus_dict_append_variant(&dict,
 785                                                 "wep_key0", DBUS_TYPE_STRING,
 786                                                                 &passphrase);
 787                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 788                                                 DBUS_TYPE_STRING, &index);
 789                 }
 790         } else {
 791                 const char *key_mgmt = "NONE";
 792                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 793                                                 DBUS_TYPE_STRING, &key_mgmt);
 794         }
 795
 796         dbus_message_iter_close_container(&array, &dict);
 797
 798         dbus_error_init(&error);
 799
 800         reply = dbus_connection_send_with_reply_and_block(connection,
 801                                                         message, -1, &error);
 802         if (reply == NULL) {
 803                 if (dbus_error_is_set(&error) == TRUE) {
 804                         connman_error("%s", error.message);
 805                         dbus_error_free(&error);
 806                 } else
 807                         connman_error("Failed to set network options");
 808                 dbus_message_unref(message);
 809                 return -EIO;
 810         }
 811
 812         dbus_message_unref(message);
 813
 814         dbus_message_unref(reply);
 815
 816         return 0;
 817 }
 818
 819 static int initiate_scan(struct supplicant_task *task)
 820 {
 821         DBusMessage *message;
 822         DBusPendingCall *call;
 823
 824         DBG("task %p", task);
 825
 826         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 827                                         SUPPLICANT_INTF ".Interface", "scan");
 828         if (message == NULL)
 829                 return -ENOMEM;
 830
 831         if (dbus_connection_send_with_reply(connection, message,
 832                                                 &call, TIMEOUT) == FALSE) {
 833                 connman_error("Failed to initiate scan");
 834                 dbus_message_unref(message);
 835                 return -EIO;
 836         }
 837
 838         dbus_message_unref(message);
 839
 840         return 0;
 841 }
 842
 843 static struct {
 844         char *name;
 845         char *value;
 846 } special_ssid[] = {
 847         { "<hidden>", "hidden"  },
 848         { "default",  "linksys" },
 849         { "wireless"  },
 850         { "linksys"   },
 851         { "netgear"   },
 852         { "dlink"     },
 853         { "2wire"     },
 854         { "compaq"    },
 855         { "tsunami"   },
 856         { "comcomcom", "3com"     },
 857         { "3Com",      "3com"     },
 858         { "Symbol",    "symbol"   },
 859         { "Motorola",  "motorola" },
 860         { "Wireless" , "wireless" },
 861         { "WLAN",      "wlan"     },
 862         { }
 863 };
 864
 865 static char *build_group(const char *addr, const char *name,
 866                         const unsigned char *ssid, unsigned int ssid_len,
 867                                         const char *mode, const char *security)
 868 {
 869         GString *str;
 870         unsigned int i;
 871
 872         if (addr == NULL)
 873                 return NULL;
 874
 875         str = g_string_sized_new((ssid_len * 2) + 24);
 876         if (str == NULL)
 877                 return NULL;
 878
 879         for (i = 0; special_ssid[i].name; i++) {
 880                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 881                         if (special_ssid[i].value == NULL)
 882                                 g_string_append_printf(str, "%s_%s",
 883                                                                 name, addr);
 884                         else
 885                                 g_string_append_printf(str, "%s_%s",
 886                                                 special_ssid[i].value, addr);
 887                         goto done;
 888                 }
 889         }
 890
 891         if (ssid_len > 0 && ssid[0] != '\0') {
 892                 for (i = 0; i < ssid_len; i++)
 893                         g_string_append_printf(str, "%02x", ssid[i]);
 894         } else
 895                 g_string_append_printf(str, "hidden_%s", addr);
 896
 897 done:
 898         g_string_append_printf(str, "_%s_%s", mode, security);
 899
 900         return g_string_free(str, FALSE);
 901 }
 902
 903 static void extract_addr(DBusMessageIter *value,
 904                                         struct supplicant_result *result)
 905 {
 906         DBusMessageIter array;
 907         struct ether_addr *eth;
 908         unsigned char *addr;
 909         int addr_len;
 910
 911         dbus_message_iter_recurse(value, &array);
 912         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 913
 914         if (addr_len != 6)
 915                 return;
 916
 917         result->addr = g_try_malloc(addr_len);
 918         if (result->addr == NULL)
 919                 return;
 920
 921         memcpy(result->addr, addr, addr_len);
 922         result->addr_len = addr_len;
 923
 924         result->path = g_try_malloc0(13);
 925         if (result->path == NULL)
 926                 return;
 927
 928         eth = (void *) addr;
 929
 930         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
 931                                                 eth->ether_addr_octet[0],
 932                                                 eth->ether_addr_octet[1],
 933                                                 eth->ether_addr_octet[2],
 934                                                 eth->ether_addr_octet[3],
 935                                                 eth->ether_addr_octet[4],
 936                                                 eth->ether_addr_octet[5]);
 937 }
 938
 939 static void extract_ssid(DBusMessageIter *value,
 940                                         struct supplicant_result *result)
 941 {
 942         DBusMessageIter array;
 943         unsigned char *ssid;
 944         int ssid_len, i;
 945
 946         dbus_message_iter_recurse(value, &array);
 947         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 948
 949         if (ssid_len < 1)
 950                 return;
 951
 952         result->ssid = g_try_malloc(ssid_len);
 953         if (result->ssid == NULL)
 954                 return;
 955
 956         memcpy(result->ssid, ssid, ssid_len);
 957         result->ssid_len = ssid_len;
 958
 959         result->name = g_try_malloc0(ssid_len + 1);
 960         if (result->name == NULL)
 961                 return;
 962
 963         for (i = 0; i < ssid_len; i++) {
 964                 if (g_ascii_isprint(ssid[i]))
 965                         result->name[i] = ssid[i];
 966                 else
 967                         result->name[i] = ' ';
 968         }
 969 }
 970
 971 static void extract_wpaie(DBusMessageIter *value,
 972                                         struct supplicant_result *result)
 973 {
 974         DBusMessageIter array;
 975         unsigned char *ie;
 976         int ie_len;
 977
 978         dbus_message_iter_recurse(value, &array);
 979         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 980
 981         if (ie_len > 0)
 982                 result->has_wpa = TRUE;
 983 }
 984
 985 static void extract_rsnie(DBusMessageIter *value,
 986                                         struct supplicant_result *result)
 987 {
 988         DBusMessageIter array;
 989         unsigned char *ie;
 990         int ie_len;
 991
 992         dbus_message_iter_recurse(value, &array);
 993         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 994
 995         if (ie_len > 0)
 996                 result->has_rsn = TRUE;
 997 }
 998
 999 static void extract_wpsie(DBusMessageIter *value,
1000                                         struct supplicant_result *result)
1001 {
1002         DBusMessageIter array;
1003         unsigned char *ie;
1004         int ie_len;
1005
1006         dbus_message_iter_recurse(value, &array);
1007         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1008
1009         if (ie_len > 0)
1010                 result->has_wps = TRUE;
1011 }
1012
1013 static void extract_capabilites(DBusMessageIter *value,
1014                                         struct supplicant_result *result)
1015 {
1016         dbus_message_iter_get_basic(value, &result->capabilities);
1017
1018         if (result->capabilities & IEEE80211_CAP_ESS)
1019                 result->adhoc = FALSE;
1020         else if (result->capabilities & IEEE80211_CAP_IBSS)
1021                 result->adhoc = TRUE;
1022
1023         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1024                 result->has_wep = TRUE;
1025 }
1026
1027 static unsigned char calculate_strength(struct supplicant_task *task,
1028                                         struct supplicant_result *result)
1029 {
1030         if (task->range->max_qual.qual == 0) {
1031                 unsigned char strength;
1032
1033                 if (result->level > 0)
1034                         strength = 100 - result->level;
1035                 else
1036                         strength = 120 + result->level;
1037
1038                 if (strength > 100)
1039                         strength = 100;
1040
1041                 return strength;
1042         }
1043
1044         return (result->quality * 100) / task->range->max_qual.qual;
1045 }
1046
1047 static unsigned short calculate_channel(struct supplicant_result *result)
1048 {
1049         if (result->frequency < 0)
1050                 return 0;
1051
1052         return (result->frequency - 2407) / 5;
1053 }
1054
1055 static void get_properties(struct supplicant_task *task);
1056
1057 static void properties_reply(DBusPendingCall *call, void *user_data)
1058 {
1059         struct supplicant_task *task = user_data;
1060         struct supplicant_result result;
1061         struct connman_network *network;
1062         DBusMessage *reply;
1063         DBusMessageIter array, dict;
1064         unsigned char strength;
1065         unsigned short channel, frequency;
1066         const char *mode, *security;
1067         char *group;
1068         unsigned int ssid_len;
1069
1070         DBG("task %p", task);
1071
1072         reply = dbus_pending_call_steal_reply(call);
1073         if (reply == NULL) {
1074                 get_properties(task);
1075                 return;
1076         }
1077
1078         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1079                 dbus_message_unref(reply);
1080                 get_properties(task);
1081                 return;
1082         }
1083
1084         memset(&result, 0, sizeof(result));
1085         result.frequency = -1;
1086         result.quality = -1;
1087         result.level = 0;
1088         result.noise = 0;
1089
1090         dbus_message_iter_init(reply, &array);
1091
1092         dbus_message_iter_recurse(&array, &dict);
1093
1094         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1095                 DBusMessageIter entry, value;
1096                 const char *key;
1097
1098                 dbus_message_iter_recurse(&dict, &entry);
1099                 dbus_message_iter_get_basic(&entry, &key);
1100
1101                 dbus_message_iter_next(&entry);
1102
1103                 dbus_message_iter_recurse(&entry, &value);
1104
1105                 //type = dbus_message_iter_get_arg_type(&value);
1106                 //dbus_message_iter_get_basic(&value, &val);
1107
1108                 /*
1109                  * bssid        : a (97)
1110                  * ssid         : a (97)
1111                  * wpaie        : a (97)
1112                  * rsnie        : a (97)
1113                  * wpsie        : a (97)
1114                  * frequency    : i (105)
1115                  * capabilities : q (113)
1116                  * quality      : i (105)
1117                  * noise        : i (105)
1118                  * level        : i (105)
1119                  * maxrate      : i (105)
1120                  */
1121
1122                 if (g_str_equal(key, "bssid") == TRUE)
1123                         extract_addr(&value, &result);
1124                 else if (g_str_equal(key, "ssid") == TRUE)
1125                         extract_ssid(&value, &result);
1126                 else if (g_str_equal(key, "wpaie") == TRUE)
1127                         extract_wpaie(&value, &result);
1128                 else if (g_str_equal(key, "rsnie") == TRUE)
1129                         extract_rsnie(&value, &result);
1130                 else if (g_str_equal(key, "wpsie") == TRUE)
1131                         extract_wpsie(&value, &result);
1132                 else if (g_str_equal(key, "capabilities") == TRUE)
1133                         extract_capabilites(&value, &result);
1134                 else if (g_str_equal(key, "frequency") == TRUE)
1135                         dbus_message_iter_get_basic(&value, &result.frequency);
1136                 else if (g_str_equal(key, "quality") == TRUE)
1137                         dbus_message_iter_get_basic(&value, &result.quality);
1138                 else if (g_str_equal(key, "noise") == TRUE)
1139                         dbus_message_iter_get_basic(&value, &result.noise);
1140                 else if (g_str_equal(key, "level") == TRUE)
1141                         dbus_message_iter_get_basic(&value, &result.level);
1142                 else if (g_str_equal(key, "maxrate") == TRUE)
1143                         dbus_message_iter_get_basic(&value, &result.maxrate);
1144
1145                 dbus_message_iter_next(&dict);
1146         }
1147
1148         if (result.path == NULL)
1149                 goto done;
1150
1151         if (result.path[0] == '\0')
1152                 goto done;
1153
1154         if (result.frequency > 0 && result.frequency < 14)
1155                 result.frequency = 2407 + (5 * result.frequency);
1156         else if (result.frequency == 14)
1157                 result.frequency = 2484;
1158
1159         strength = calculate_strength(task, &result);
1160         channel  = calculate_channel(&result);
1161
1162         frequency = (result.frequency < 0) ? 0 : result.frequency;
1163
1164         if (result.has_rsn == TRUE)
1165                 security = "rsn";
1166         else if (result.has_wpa == TRUE)
1167                 security = "wpa";
1168         else if (result.has_wep == TRUE)
1169                 security = "wep";
1170         else
1171                 security = "none";
1172
1173         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1174
1175         group = build_group(result.path, result.name,
1176                                         result.ssid, result.ssid_len,
1177                                                         mode, security);
1178
1179         network = connman_device_get_network(task->device, result.path);
1180         if (network == NULL) {
1181                 int index;
1182
1183                 network = connman_network_create(result.path,
1184                                                 CONNMAN_NETWORK_TYPE_WIFI);
1185                 if (network == NULL)
1186                         goto done;
1187
1188                 index = connman_device_get_index(task->device);
1189                 connman_network_set_index(network, index);
1190
1191                 connman_network_set_protocol(network,
1192                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1193
1194                 connman_network_set_address(network, result.addr,
1195                                                         result.addr_len);
1196
1197                 if (connman_device_add_network(task->device, network) < 0) {
1198                         connman_network_unref(network);
1199                         goto done;
1200                 }
1201         }
1202
1203         if (result.name != NULL && result.name[0] != '\0')
1204                 connman_network_set_name(network, result.name);
1205
1206         if (connman_network_get_blob(network, "WiFi.SSID", &ssid_len) == NULL) {
1207                 connman_network_set_blob(network, "WiFi.SSID",
1208                                          result.ssid, result.ssid_len);
1209         }
1210
1211         connman_network_set_string(network, "WiFi.Mode", mode);
1212
1213         DBG("%s (%s %s) strength %d (%s)",
1214                                 result.name, mode, security, strength,
1215                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1216
1217         connman_network_set_available(network, TRUE);
1218         connman_network_set_strength(network, strength);
1219
1220         connman_network_set_uint16(network, "Frequency", frequency);
1221         connman_network_set_uint16(network, "WiFi.Channel", channel);
1222         connman_network_set_string(network, "WiFi.Security", security);
1223
1224         connman_network_set_group(network, group);
1225
1226         g_free(group);
1227
1228 done:
1229         g_free(result.path);
1230         g_free(result.addr);
1231         g_free(result.name);
1232         g_free(result.ssid);
1233
1234         dbus_message_unref(reply);
1235
1236         get_properties(task);
1237 }
1238
1239 static void get_properties(struct supplicant_task *task)
1240 {
1241         DBusMessage *message;
1242         DBusPendingCall *call;
1243         char *path;
1244
1245         path = g_slist_nth_data(task->scan_results, 0);
1246         if (path == NULL)
1247                 goto noscan;
1248
1249         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1250                                                 SUPPLICANT_INTF ".BSSID",
1251                                                                 "properties");
1252
1253         task->scan_results = g_slist_remove(task->scan_results, path);
1254         g_free(path);
1255
1256         if (message == NULL)
1257                 goto noscan;
1258
1259         if (dbus_connection_send_with_reply(connection, message,
1260                                                 &call, TIMEOUT) == FALSE) {
1261                 connman_error("Failed to get network properties");
1262                 dbus_message_unref(message);
1263                 goto noscan;
1264         }
1265
1266         if (call == NULL) {
1267                 connman_error("D-Bus connection not available");
1268                 dbus_message_unref(message);
1269                 goto noscan;
1270         }
1271
1272         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1273
1274         dbus_message_unref(message);
1275
1276         return;
1277
1278 noscan:
1279         if (task->noscan == FALSE)
1280                 connman_device_set_scanning(task->device, FALSE);
1281 }
1282
1283 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1284 {
1285         struct supplicant_task *task = user_data;
1286         DBusMessage *reply;
1287         DBusError error;
1288         char **results;
1289         int i, num_results;
1290
1291         DBG("task %p", task);
1292
1293         reply = dbus_pending_call_steal_reply(call);
1294         if (reply == NULL)
1295                 goto noscan;
1296
1297         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1298                 goto done;
1299
1300         dbus_error_init(&error);
1301
1302         if (dbus_message_get_args(reply, &error,
1303                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1304                                                 &results, &num_results,
1305                                                 DBUS_TYPE_INVALID) == FALSE) {
1306                 if (dbus_error_is_set(&error) == TRUE) {
1307                         connman_error("%s", error.message);
1308                         dbus_error_free(&error);
1309                 } else
1310                         connman_error("Wrong arguments for scan result");
1311                 goto done;
1312         }
1313
1314         if (num_results == 0)
1315                 goto done;
1316
1317         for (i = 0; i < num_results; i++) {
1318                 char *path = g_strdup(results[i]);
1319                 if (path == NULL)
1320                         continue;
1321
1322                 task->scan_results = g_slist_append(task->scan_results, path);
1323         }
1324
1325         g_strfreev(results);
1326
1327         dbus_message_unref(reply);
1328
1329         get_properties(task);
1330
1331         return;
1332
1333 done:
1334         dbus_message_unref(reply);
1335
1336 noscan:
1337         if (task->noscan == FALSE)
1338                 connman_device_set_scanning(task->device, FALSE);
1339 }
1340
1341 static void scan_results_available(struct supplicant_task *task)
1342 {
1343         DBusMessage *message;
1344         DBusPendingCall *call;
1345
1346         DBG("task %p", task);
1347
1348         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1349                                                 SUPPLICANT_INTF ".Interface",
1350                                                         "scanResults");
1351         if (message == NULL)
1352                 return;
1353
1354         if (dbus_connection_send_with_reply(connection, message,
1355                                                 &call, TIMEOUT) == FALSE) {
1356                 connman_error("Failed to request scan result");
1357                 goto done;
1358         }
1359
1360         if (task->noscan == FALSE)
1361                 connman_device_set_scanning(task->device, TRUE);
1362
1363         if (call == NULL) {
1364                 connman_error("D-Bus connection not available");
1365                 goto done;
1366         }
1367
1368         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1369
1370 done:
1371         dbus_message_unref(message);
1372 }
1373
1374 static enum supplicant_state string2state(const char *state)
1375 {
1376         if (g_str_equal(state, "INACTIVE") == TRUE)
1377                 return WPA_INACTIVE;
1378         else if (g_str_equal(state, "SCANNING") == TRUE)
1379                 return WPA_SCANNING;
1380         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1381                 return WPA_ASSOCIATING;
1382         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1383                 return WPA_ASSOCIATED;
1384         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1385                 return WPA_GROUP_HANDSHAKE;
1386         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1387                 return WPA_4WAY_HANDSHAKE;
1388         else if (g_str_equal(state, "COMPLETED") == TRUE)
1389                 return WPA_COMPLETED;
1390         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1391                 return WPA_DISCONNECTED;
1392         else
1393                 return WPA_INVALID;
1394 }
1395
1396 static int task_connect(struct supplicant_task *task)
1397 {
1398         const char *address, *security, *passphrase;
1399         const void *ssid;
1400         unsigned int ssid_len;
1401
1402         address = connman_network_get_string(task->network, "Address");
1403         security = connman_network_get_string(task->network, "WiFi.Security");
1404         passphrase = connman_network_get_string(task->network, "WiFi.Passphrase");
1405
1406         ssid = connman_network_get_blob(task->network, "WiFi.SSID", &ssid_len);
1407
1408         DBG("address %s security %s passphrase %s",
1409                                         address, security, passphrase);
1410
1411         if (security == NULL && passphrase == NULL)
1412                 return -EINVAL;
1413
1414         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1415                 return -EINVAL;
1416
1417         add_network(task);
1418
1419         select_network(task);
1420         disable_network(task);
1421
1422         set_network(task, ssid, ssid_len, address, security, passphrase);
1423
1424         enable_network(task);
1425
1426         return 0;
1427 }
1428
1429 static char *get_bssid(struct connman_device *device)
1430 {
1431         char *bssid;
1432         unsigned char ioctl_bssid[ETH_ALEN];
1433         int fd, ret;
1434         struct iwreq wrq;
1435
1436         if (connman_device_get_type(device) != CONNMAN_DEVICE_TYPE_WIFI)
1437                 return NULL;
1438
1439         fd = socket(PF_INET, SOCK_DGRAM, 0);
1440         if (fd < 0)
1441                 return NULL;
1442
1443         memset(&wrq, 0, sizeof(wrq));
1444         strncpy(wrq.ifr_name, connman_device_get_interface(device), IFNAMSIZ);
1445
1446         ret = ioctl(fd, SIOCGIWAP, &wrq);
1447         close(fd);
1448         if (ret != 0)
1449                 return NULL;
1450
1451         memcpy(ioctl_bssid, wrq.u.ap_addr.sa_data, ETH_ALEN);
1452
1453         bssid = g_try_malloc0(13);
1454         if (bssid == NULL)
1455                 return NULL;
1456
1457         snprintf(bssid, 13, "%02x%02x%02x%02x%02x%02x",
1458                  ioctl_bssid[0], ioctl_bssid[1],
1459                  ioctl_bssid[2], ioctl_bssid[3],
1460                  ioctl_bssid[4], ioctl_bssid[5]);
1461
1462         return bssid;
1463 }
1464
1465
1466 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1467 {
1468         DBusError error;
1469         const char *newstate, *oldstate;
1470         enum supplicant_state state;
1471
1472         dbus_error_init(&error);
1473
1474         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1475                                                 DBUS_TYPE_STRING, &oldstate,
1476                                                 DBUS_TYPE_INVALID) == FALSE) {
1477                 if (dbus_error_is_set(&error) == TRUE) {
1478                         connman_error("%s", error.message);
1479                         dbus_error_free(&error);
1480                 } else
1481                         connman_error("Wrong arguments for state change");
1482                 return;
1483         }
1484
1485         DBG("state %s ==> %s", oldstate, newstate);
1486
1487         state = string2state(newstate);
1488         if (state == WPA_INVALID)
1489                 return;
1490
1491         task->state = state;
1492
1493         switch (task->state) {
1494         case WPA_SCANNING:
1495                 task->noscan = TRUE;
1496                 connman_device_set_scanning(task->device, TRUE);
1497                 break;
1498         case WPA_ASSOCIATING:
1499         case WPA_ASSOCIATED:
1500         case WPA_4WAY_HANDSHAKE:
1501         case WPA_GROUP_HANDSHAKE:
1502                 task->noscan = TRUE;
1503                 break;
1504         case WPA_COMPLETED:
1505         case WPA_DISCONNECTED:
1506                 task->noscan = FALSE;
1507                 break;
1508         case WPA_INACTIVE:
1509                 task->noscan = FALSE;
1510                 connman_device_set_scanning(task->device, FALSE);
1511                 break;
1512         case WPA_INVALID:
1513                 break;
1514         }
1515
1516         if (task->network == NULL)
1517                 return;
1518
1519         switch (task->state) {
1520         case WPA_COMPLETED:
1521                 /* carrier on */
1522                 if (connman_network_get_group(task->network) == NULL) {
1523                         const char *name, *mode, *security;
1524                         char *group, *bssid;
1525
1526                         /*
1527                          * This is a hidden network, we need to set its
1528                          * group based on the BSSID we just joined.
1529                          */
1530                         bssid = get_bssid(task->device);
1531
1532                         name = connman_network_get_string(task->network,
1533                                                           "Name");
1534                         mode = connman_network_get_string(task->network,
1535                                                           "WiFi.Mode");
1536                         security = connman_network_get_string(task->network,
1537                                                               "WiFi.Security");
1538
1539                         if (bssid && name && mode && security) {
1540                                 group = build_group(bssid, name, NULL, 0,
1541                                                     mode, security);
1542                                 connman_network_set_group(task->network, group);
1543                         }
1544
1545                         g_free(bssid);
1546                         g_free(group);
1547                 }
1548                 connman_network_set_connected(task->network, TRUE);
1549                 connman_device_set_scanning(task->device, FALSE);
1550                 break;
1551         case WPA_DISCONNECTED:
1552                 if (task->disconnecting == TRUE) {
1553                         connman_network_set_connected(task->network, FALSE);
1554                         connman_network_unref(task->network);
1555                         task->disconnecting = FALSE;
1556
1557                         if (task->pending_network != NULL) {
1558                                 task->network = task->pending_network;
1559                                 task->pending_network = NULL;
1560                                 task_connect(task);
1561                         }
1562                 } else {
1563                         /* carrier off */
1564                         connman_network_set_connected(task->network, FALSE);
1565                         connman_device_set_scanning(task->device, FALSE);
1566                 }
1567                 break;
1568         case WPA_ASSOCIATING:
1569                 connman_network_set_associating(task->network, TRUE);
1570                 break;
1571         default:
1572                 connman_network_set_associating(task->network, FALSE);
1573                 break;
1574         }
1575 }
1576
1577 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1578                                                 DBusMessage *msg, void *data)
1579 {
1580         struct supplicant_task *task;
1581         const char *member, *path;
1582
1583         if (dbus_message_has_interface(msg,
1584                                 SUPPLICANT_INTF ".Interface") == FALSE)
1585                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1586
1587         member = dbus_message_get_member(msg);
1588         if (member == NULL)
1589                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1590
1591         path = dbus_message_get_path(msg);
1592         if (path == NULL)
1593                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1594
1595         task = find_task_by_path(path);
1596         if (task == NULL)
1597                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1598
1599         DBG("task %p member %s", task, member);
1600
1601         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1602                 scan_results_available(task);
1603         else if (g_str_equal(member, "StateChange") == TRUE)
1604                 state_change(task, msg);
1605
1606         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1607 }
1608
1609 static int supplicant_get_range(struct supplicant_task *task)
1610 {
1611         struct iwreq wrq;
1612         int fd, err;
1613
1614         fd = socket(PF_INET, SOCK_DGRAM, 0);
1615         if (fd < 0)
1616                 return -1;
1617
1618         memset(&wrq, 0, sizeof(struct iwreq));
1619         strncpy(wrq.ifr_name, task->ifname, IFNAMSIZ);
1620         wrq.u.data.pointer = task->range;
1621         wrq.u.data.length = sizeof(struct iw_range);
1622
1623         err = ioctl(fd, SIOCGIWRANGE, &wrq);
1624
1625         close(fd);
1626
1627         return err;
1628 }
1629
1630 int supplicant_start(struct connman_device *device)
1631 {
1632         struct supplicant_task *task;
1633         int err;
1634
1635         DBG("device %p", device);
1636
1637         task = g_try_new0(struct supplicant_task, 1);
1638         if (task == NULL)
1639                 return -ENOMEM;
1640
1641         task->ifindex = connman_device_get_index(device);
1642         task->ifname = connman_inet_ifname(task->ifindex);
1643
1644         if (task->ifname == NULL) {
1645                 err = -ENOMEM;
1646                 goto failed;
1647         }
1648
1649         task->range = g_try_malloc0(sizeof(struct iw_range));
1650         if (task->range == NULL) {
1651                 err = -ENOMEM;
1652                 goto failed;
1653         }
1654
1655         err = supplicant_get_range(task);
1656         if (err < 0)
1657                 goto failed;
1658
1659         task->device = connman_device_ref(device);
1660
1661         task->created = FALSE;
1662         task->noscan = FALSE;
1663         task->state = WPA_INVALID;
1664         task->disconnecting = FALSE;
1665         task->pending_network = NULL;
1666
1667         task_list = g_slist_append(task_list, task);
1668
1669         return create_interface(task);
1670
1671 failed:
1672         g_free(task->range);
1673         g_free(task->ifname);
1674         g_free(task);
1675
1676         return err;
1677 }
1678
1679 int supplicant_stop(struct connman_device *device)
1680 {
1681         int index = connman_device_get_index(device);
1682         struct supplicant_task *task;
1683
1684         DBG("device %p", device);
1685
1686         task = find_task_by_index(index);
1687         if (task == NULL)
1688                 return -ENODEV;
1689
1690         g_free(task->range);
1691
1692         task_list = g_slist_remove(task_list, task);
1693
1694         disable_network(task);
1695
1696         remove_network(task);
1697
1698         return remove_interface(task);
1699 }
1700
1701 int supplicant_scan(struct connman_device *device)
1702 {
1703         int index = connman_device_get_index(device);
1704         struct supplicant_task *task;
1705         int err;
1706
1707         DBG("device %p", device);
1708
1709         task = find_task_by_index(index);
1710         if (task == NULL)
1711                 return -ENODEV;
1712
1713         switch (task->state) {
1714         case WPA_SCANNING:
1715                 return -EALREADY;
1716         case WPA_ASSOCIATING:
1717         case WPA_ASSOCIATED:
1718         case WPA_4WAY_HANDSHAKE:
1719         case WPA_GROUP_HANDSHAKE:
1720                 return -EBUSY;
1721         default:
1722                 break;
1723         }
1724
1725         err = initiate_scan(task);
1726
1727         return 0;
1728 }
1729
1730 int supplicant_connect(struct connman_network *network)
1731 {
1732         struct supplicant_task *task;
1733         int index;
1734
1735         DBG("network %p", network);
1736
1737         index = connman_network_get_index(network);
1738
1739         task = find_task_by_index(index);
1740         if (task == NULL)
1741                 return -ENODEV;
1742
1743         if (task->disconnecting == TRUE)
1744                 task->pending_network = connman_network_ref(network);
1745         else {
1746                 task->network = connman_network_ref(network);
1747                 return task_connect(task);
1748         }
1749
1750         return 0;
1751 }
1752
1753 int supplicant_disconnect(struct connman_network *network)
1754 {
1755         struct supplicant_task *task;
1756         int index;
1757
1758         DBG("network %p", network);
1759
1760         index = connman_network_get_index(network);
1761
1762         task = find_task_by_index(index);
1763         if (task == NULL)
1764                 return -ENODEV;
1765
1766         if (task->disconnecting == TRUE)
1767                 return -EINPROGRESS;
1768
1769         disable_network(task);
1770
1771         remove_network(task);
1772
1773         task->disconnecting = TRUE;
1774
1775         return 0;
1776 }
1777
1778 static void supplicant_activate(DBusConnection *conn)
1779 {
1780         DBusMessage *message;
1781
1782         DBG("conn %p", conn);
1783
1784         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1785                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1786         if (message == NULL)
1787                 return;
1788
1789         dbus_message_set_no_reply(message, TRUE);
1790
1791         dbus_connection_send(conn, message, NULL);
1792
1793         dbus_message_unref(message);
1794 }
1795
1796 static GSList *driver_list = NULL;
1797
1798 static void supplicant_probe(DBusConnection *conn, void *user_data)
1799 {
1800         GSList *list;
1801
1802         DBG("conn %p", conn);
1803
1804         for (list = driver_list; list; list = list->next) {
1805                 struct supplicant_driver *driver = list->data;
1806
1807                 DBG("driver %p name %s", driver, driver->name);
1808
1809                 if (driver->probe)
1810                         driver->probe();
1811         }
1812 }
1813
1814 static void supplicant_remove(DBusConnection *conn, void *user_data)
1815 {
1816         GSList *list;
1817
1818         DBG("conn %p", conn);
1819
1820         for (list = driver_list; list; list = list->next) {
1821                 struct supplicant_driver *driver = list->data;
1822
1823                 DBG("driver %p name %s", driver, driver->name);
1824
1825                 if (driver->remove)
1826                         driver->remove();
1827         }
1828 }
1829
1830 static const char *supplicant_rule = "type=signal,"
1831                                 "interface=" SUPPLICANT_INTF ".Interface";
1832 static guint watch;
1833
1834 static int supplicant_create(void)
1835 {
1836         if (g_slist_length(driver_list) > 0)
1837                 return 0;
1838
1839         connection = connman_dbus_get_connection();
1840         if (connection == NULL)
1841                 return -EIO;
1842
1843         DBG("connection %p", connection);
1844
1845         if (dbus_connection_add_filter(connection,
1846                                 supplicant_filter, NULL, NULL) == FALSE) {
1847                 connection = connman_dbus_get_connection();
1848                 return -EIO;
1849         }
1850
1851         dbus_bus_add_match(connection, supplicant_rule, NULL);
1852         dbus_connection_flush(connection);
1853
1854         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1855                         supplicant_probe, supplicant_remove, NULL, NULL);
1856
1857         return 0;
1858 }
1859
1860 static void supplicant_destroy(void)
1861 {
1862         if (g_slist_length(driver_list) > 0)
1863                 return;
1864
1865         DBG("connection %p", connection);
1866
1867         if (watch > 0)
1868                 g_dbus_remove_watch(connection, watch);
1869
1870         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1871         dbus_connection_flush(connection);
1872
1873         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1874
1875         dbus_connection_unref(connection);
1876         connection = NULL;
1877 }
1878
1879 int supplicant_register(struct supplicant_driver *driver)
1880 {
1881         int err;
1882
1883         DBG("driver %p name %s", driver, driver->name);
1884
1885         err = supplicant_create();
1886         if (err < 0)
1887                 return err;
1888
1889         driver_list = g_slist_append(driver_list, driver);
1890
1891         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1892                 supplicant_probe(connection, NULL);
1893         else
1894                 supplicant_activate(connection);
1895
1896         return 0;
1897 }
1898
1899 void supplicant_unregister(struct supplicant_driver *driver)
1900 {
1901         DBG("driver %p name %s", driver, driver->name);
1902
1903         supplicant_remove(connection, NULL);
1904
1905         driver_list = g_slist_remove(driver_list, driver);
1906
1907         supplicant_destroy();
1908 }