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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <net/ethernet.h>
  31
  32 #include <gdbus.h>
  33
  34 #define CONNMAN_API_SUBJECT_TO_CHANGE
  35 #include <connman/device.h>
  36 #include <connman/option.h>
  37 #include <connman/inet.h>
  38 #include <connman/dbus.h>
  39 #include <connman/log.h>
  40
  41 #include "supplicant.h"
  42
  43 #define TIMEOUT 5000
  44
  45 #define IEEE80211_CAP_ESS       0x0001
  46 #define IEEE80211_CAP_IBSS      0x0002
  47 #define IEEE80211_CAP_PRIVACY   0x0010
  48
  49 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  50 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  51 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  52
  53 /* Taken from "WPA Supplicant - Common definitions" */
  54 enum supplicant_state {
  55         /**
  56          * WPA_DISCONNECTED - Disconnected state
  57          *
  58          * This state indicates that client is not associated, but is likely to
  59          * start looking for an access point. This state is entered when a
  60          * connection is lost.
  61          */
  62         WPA_DISCONNECTED,
  63
  64         /**
  65          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  66          *
  67          * This state is entered if there are no enabled networks in the
  68          * configuration. wpa_supplicant is not trying to associate with a new
  69          * network and external interaction (e.g., ctrl_iface call to add or
  70          * enable a network) is needed to start association.
  71          */
  72         WPA_INACTIVE,
  73
  74         /**
  75          * WPA_SCANNING - Scanning for a network
  76          *
  77          * This state is entered when wpa_supplicant starts scanning for a
  78          * network.
  79          */
  80         WPA_SCANNING,
  81
  82         /**
  83          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  84          *
  85          * This state is entered when wpa_supplicant has found a suitable BSS
  86          * to associate with and the driver is configured to try to associate
  87          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  88          * state is entered when the driver is configured to try to associate
  89          * with a network using the configured SSID and security policy.
  90          */
  91         WPA_ASSOCIATING,
  92
  93         /**
  94          * WPA_ASSOCIATED - Association completed
  95          *
  96          * This state is entered when the driver reports that association has
  97          * been successfully completed with an AP. If IEEE 802.1X is used
  98          * (with or without WPA/WPA2), wpa_supplicant remains in this state
  99          * until the IEEE 802.1X/EAPOL authentication has been completed.
 100          */
 101         WPA_ASSOCIATED,
 102
 103         /**
 104          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 105          *
 106          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 107          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 108          * frame after association. In case of WPA-EAP, this state is entered
 109          * when the IEEE 802.1X/EAPOL authentication has been completed.
 110          */
 111         WPA_4WAY_HANDSHAKE,
 112
 113         /**
 114          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 115          *
 116          * This state is entered when 4-Way Key Handshake has been completed
 117          * (i.e., when the supplicant sends out message 4/4) and when Group
 118          * Key rekeying is started by the AP (i.e., when supplicant receives
 119          * message 1/2).
 120          */
 121         WPA_GROUP_HANDSHAKE,
 122
 123         /**
 124          * WPA_COMPLETED - All authentication completed
 125          *
 126          * This state is entered when the full authentication process is
 127          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 128          * successfully completed. With WPA, this state is entered after the
 129          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 130          * completed after dynamic keys are received (or if not used, after
 131          * the EAP authentication has been completed). With static WEP keys and
 132          * plaintext connections, this state is entered when an association
 133          * has been completed.
 134          *
 135          * This state indicates that the supplicant has completed its
 136          * processing for the association phase and that data connection is
 137          * fully configured.
 138          */
 139         WPA_COMPLETED,
 140
 141         /**
 142          * WPA_INVALID - Invalid state (parsing error)
 143          *
 144          * This state is returned if the string input is invalid. It is not
 145          * an official wpa_supplicant state.
 146          */
 147         WPA_INVALID,
 148 };
 149
 150 struct supplicant_result {
 151         char *path;
 152         char *name;
 153         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_str_equal(task->path, path) == TRUE)
 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 done;
 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 done;
 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 done:
 260         dbus_message_unref(reply);
 261 }
 262
 263 static int add_interface(struct supplicant_task *task)
 264 {
 265         const char *driver = connman_option_get_string("wifi");
 266         DBusMessage *message;
 267         DBusMessageIter array, dict;
 268         DBusPendingCall *call;
 269
 270         DBG("task %p", task);
 271
 272         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 273                                         SUPPLICANT_INTF, "addInterface");
 274         if (message == NULL)
 275                 return -ENOMEM;
 276
 277         dbus_message_iter_init_append(message, &array);
 278
 279         dbus_message_iter_append_basic(&array,
 280                                         DBUS_TYPE_STRING, &task->ifname);
 281
 282         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 283                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 284                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 285                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 286
 287         connman_dbus_dict_append_variant(&dict, "driver",
 288                                                 DBUS_TYPE_STRING, &driver);
 289
 290         dbus_message_iter_close_container(&array, &dict);
 291
 292         if (dbus_connection_send_with_reply(connection, message,
 293                                                 &call, TIMEOUT) == FALSE) {
 294                 connman_error("Failed to add interface");
 295                 dbus_message_unref(message);
 296                 return -EIO;
 297         }
 298
 299         if (call == NULL) {
 300                 connman_error("D-Bus connection not available");
 301                 dbus_message_unref(message);
 302                 return -EIO;
 303         }
 304
 305         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 306
 307         dbus_message_unref(message);
 308
 309         return -EINPROGRESS;
 310 }
 311
 312 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 313 {
 314         struct supplicant_task *task = user_data;
 315         DBusMessage *reply;
 316         DBusError error;
 317         const char *path;
 318
 319         DBG("task %p", task);
 320
 321         reply = dbus_pending_call_steal_reply(call);
 322         if (reply == NULL)
 323                 return;
 324
 325         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 326                 add_interface(task);
 327                 goto done;
 328         }
 329
 330         dbus_error_init(&error);
 331
 332         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 333                                                 DBUS_TYPE_INVALID) == FALSE) {
 334                 if (dbus_error_is_set(&error) == TRUE) {
 335                         connman_error("%s", error.message);
 336                         dbus_error_free(&error);
 337                 } else
 338                         connman_error("Wrong arguments for get interface");
 339                 goto done;
 340         }
 341
 342         DBG("path %s", path);
 343
 344         task->path = g_strdup(path);
 345         task->created = FALSE;
 346
 347         connman_device_set_powered(task->device, TRUE);
 348
 349 done:
 350         dbus_message_unref(reply);
 351 }
 352
 353 static int create_interface(struct supplicant_task *task)
 354 {
 355         DBusMessage *message;
 356         DBusPendingCall *call;
 357
 358         DBG("task %p", task);
 359
 360         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 361                                         SUPPLICANT_INTF, "getInterface");
 362         if (message == NULL)
 363                 return -ENOMEM;
 364
 365         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 366                                                         DBUS_TYPE_INVALID);
 367
 368         if (dbus_connection_send_with_reply(connection, message,
 369                                                 &call, TIMEOUT) == FALSE) {
 370                 connman_error("Failed to get interface");
 371                 dbus_message_unref(message);
 372                 return -EIO;
 373         }
 374
 375         if (call == NULL) {
 376                 connman_error("D-Bus connection not available");
 377                 dbus_message_unref(message);
 378                 return -EIO;
 379         }
 380
 381         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 382
 383         dbus_message_unref(message);
 384
 385         return -EINPROGRESS;
 386 }
 387
 388 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 389 {
 390         struct supplicant_task *task = user_data;
 391         DBusMessage *reply;
 392
 393         DBG("task %p", task);
 394
 395         reply = dbus_pending_call_steal_reply(call);
 396
 397         connman_device_set_powered(task->device, FALSE);
 398
 399         connman_device_unref(task->device);
 400
 401         connman_inet_ifdown(task->ifindex);
 402
 403         free_task(task);
 404
 405         dbus_message_unref(reply);
 406 }
 407
 408 static int remove_interface(struct supplicant_task *task)
 409 {
 410         DBusMessage *message;
 411         DBusPendingCall *call;
 412
 413         DBG("task %p", task);
 414
 415         if (task->created == FALSE) {
 416                 connman_device_set_powered(task->device, FALSE);
 417                 return 0;
 418         }
 419
 420         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 421                                         SUPPLICANT_INTF, "removeInterface");
 422         if (message == NULL)
 423                 return -ENOMEM;
 424
 425         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 426                                                         DBUS_TYPE_INVALID);
 427
 428         if (dbus_connection_send_with_reply(connection, message,
 429                                                 &call, TIMEOUT) == FALSE) {
 430                 connman_error("Failed to remove interface");
 431                 dbus_message_unref(message);
 432                 return -EIO;
 433         }
 434
 435         if (call == NULL) {
 436                 connman_error("D-Bus connection not available");
 437                 dbus_message_unref(message);
 438                 return -EIO;
 439         }
 440
 441         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 442
 443         dbus_message_unref(message);
 444
 445         return -EINPROGRESS;
 446 }
 447
 448 #if 0
 449 static int set_ap_scan(struct supplicant_task *task)
 450 {
 451         DBusMessage *message, *reply;
 452         DBusError error;
 453         guint32 ap_scan = 1;
 454
 455         DBG("task %p", task);
 456
 457         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 458                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 459         if (message == NULL)
 460                 return -ENOMEM;
 461
 462         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 463                                                         DBUS_TYPE_INVALID);
 464
 465         dbus_error_init(&error);
 466
 467         reply = dbus_connection_send_with_reply_and_block(connection,
 468                                                         message, -1, &error);
 469         if (reply == NULL) {
 470                 if (dbus_error_is_set(&error) == TRUE) {
 471                         connman_error("%s", error.message);
 472                         dbus_error_free(&error);
 473                 } else
 474                         connman_error("Failed to set AP scan");
 475                 dbus_message_unref(message);
 476                 return -EIO;
 477         }
 478
 479         dbus_message_unref(message);
 480
 481         dbus_message_unref(reply);
 482
 483         return 0;
 484 }
 485 #endif
 486
 487 static int add_network(struct supplicant_task *task)
 488 {
 489         DBusMessage *message, *reply;
 490         DBusError error;
 491         const char *path;
 492
 493         DBG("task %p", task);
 494
 495         if (task->netpath != NULL)
 496                 return -EALREADY;
 497
 498         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 499                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 500         if (message == NULL)
 501                 return -ENOMEM;
 502
 503         dbus_error_init(&error);
 504
 505         reply = dbus_connection_send_with_reply_and_block(connection,
 506                                                         message, -1, &error);
 507         if (reply == NULL) {
 508                 if (dbus_error_is_set(&error) == TRUE) {
 509                         connman_error("%s", error.message);
 510                         dbus_error_free(&error);
 511                 } else
 512                         connman_error("Failed to add network");
 513                 dbus_message_unref(message);
 514                 return -EIO;
 515         }
 516
 517         dbus_message_unref(message);
 518
 519         dbus_error_init(&error);
 520
 521         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 522                                                 DBUS_TYPE_INVALID) == FALSE) {
 523                 if (dbus_error_is_set(&error) == TRUE) {
 524                         connman_error("%s", error.message);
 525                         dbus_error_free(&error);
 526                 } else
 527                         connman_error("Wrong arguments for network");
 528                 dbus_message_unref(reply);
 529                 return -EIO;
 530         }
 531
 532         DBG("path %s", path);
 533
 534         task->netpath = g_strdup(path);
 535
 536         dbus_message_unref(reply);
 537
 538         return 0;
 539 }
 540
 541 static int remove_network(struct supplicant_task *task)
 542 {
 543         DBusMessage *message, *reply;
 544         DBusError error;
 545
 546         DBG("task %p", task);
 547
 548         if (task->netpath == NULL)
 549                 return -EINVAL;
 550
 551         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 552                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 553         if (message == NULL)
 554                 return -ENOMEM;
 555
 556         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 557                                                         DBUS_TYPE_INVALID);
 558
 559         dbus_error_init(&error);
 560
 561         reply = dbus_connection_send_with_reply_and_block(connection,
 562                                                         message, -1, &error);
 563         if (reply == NULL) {
 564                 if (dbus_error_is_set(&error) == TRUE) {
 565                         connman_error("%s", error.message);
 566                         dbus_error_free(&error);
 567                 } else
 568                         connman_error("Failed to remove network");
 569                 dbus_message_unref(message);
 570                 return -EIO;
 571         }
 572
 573         dbus_message_unref(message);
 574
 575         dbus_message_unref(reply);
 576
 577         g_free(task->netpath);
 578         task->netpath = NULL;
 579
 580         return 0;
 581 }
 582
 583 static int select_network(struct supplicant_task *task)
 584 {
 585         DBusMessage *message, *reply;
 586         DBusError error;
 587
 588         DBG("task %p", task);
 589
 590         if (task->netpath == NULL)
 591                 return -EINVAL;
 592
 593         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 594                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 595         if (message == NULL)
 596                 return -ENOMEM;
 597
 598         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 599                                                         DBUS_TYPE_INVALID);
 600
 601         dbus_error_init(&error);
 602
 603         reply = dbus_connection_send_with_reply_and_block(connection,
 604                                                         message, -1, &error);
 605         if (reply == NULL) {
 606                 if (dbus_error_is_set(&error) == TRUE) {
 607                         connman_error("%s", error.message);
 608                         dbus_error_free(&error);
 609                 } else
 610                         connman_error("Failed to select network");
 611                 dbus_message_unref(message);
 612                 return -EIO;
 613         }
 614
 615         dbus_message_unref(message);
 616
 617         dbus_message_unref(reply);
 618
 619         return 0;
 620 }
 621
 622 static int enable_network(struct supplicant_task *task)
 623 {
 624         DBusMessage *message, *reply;
 625         DBusError error;
 626
 627         DBG("task %p", task);
 628
 629         if (task->netpath == NULL)
 630                 return -EINVAL;
 631
 632         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 633                                         SUPPLICANT_INTF ".Network", "enable");
 634         if (message == NULL)
 635                 return -ENOMEM;
 636
 637         dbus_error_init(&error);
 638
 639         reply = dbus_connection_send_with_reply_and_block(connection,
 640                                                         message, -1, &error);
 641         if (reply == NULL) {
 642                 if (dbus_error_is_set(&error) == TRUE) {
 643                         connman_error("%s", error.message);
 644                         dbus_error_free(&error);
 645                 } else
 646                         connman_error("Failed to enable network");
 647                 dbus_message_unref(message);
 648                 return -EIO;
 649         }
 650
 651         dbus_message_unref(message);
 652
 653         dbus_message_unref(reply);
 654
 655         return 0;
 656 }
 657
 658 static int disable_network(struct supplicant_task *task)
 659 {
 660         DBusMessage *message, *reply;
 661         DBusError error;
 662
 663         DBG("task %p", task);
 664
 665         if (task->netpath == NULL)
 666                 return -EINVAL;
 667
 668         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 669                                         SUPPLICANT_INTF ".Network", "disable");
 670         if (message == NULL)
 671                 return -ENOMEM;
 672
 673         dbus_error_init(&error);
 674
 675         reply = dbus_connection_send_with_reply_and_block(connection,
 676                                                         message, -1, &error);
 677         if (reply == NULL) {
 678                 if (dbus_error_is_set(&error) == TRUE) {
 679                         connman_error("%s", error.message);
 680                         dbus_error_free(&error);
 681                 } else
 682                         connman_error("Failed to disable network");
 683                 dbus_message_unref(message);
 684                 return -EIO;
 685         }
 686
 687         dbus_message_unref(message);
 688
 689         dbus_message_unref(reply);
 690
 691         return 0;
 692 }
 693
 694 static int set_network(struct supplicant_task *task,
 695                                 const unsigned char *network, int len,
 696                                 const char *address, const char *security,
 697                                                         const char *passphrase)
 698 {
 699         DBusMessage *message, *reply;
 700         DBusMessageIter array, dict;
 701         DBusError error;
 702
 703         DBG("task %p", task);
 704
 705         if (task->netpath == NULL)
 706                 return -EINVAL;
 707
 708         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 709                                         SUPPLICANT_INTF ".Network", "set");
 710         if (message == NULL)
 711                 return -ENOMEM;
 712
 713         dbus_message_iter_init_append(message, &array);
 714
 715         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 716                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 717                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 718                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 719
 720         if (address == NULL) {
 721                 dbus_uint32_t scan_ssid = 1;
 722                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 723                                                 DBUS_TYPE_UINT32, &scan_ssid);
 724         } else
 725                 connman_dbus_dict_append_variant(&dict, "bssid",
 726                                                 DBUS_TYPE_STRING, &address);
 727
 728         connman_dbus_dict_append_array(&dict, "ssid",
 729                                         DBUS_TYPE_BYTE, &network, len);
 730
 731         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 732                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 733                 const char *key_mgmt = "WPA-PSK";
 734                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 735                                                 DBUS_TYPE_STRING, &key_mgmt);
 736
 737                 if (passphrase && strlen(passphrase) > 0)
 738                         connman_dbus_dict_append_variant(&dict, "psk",
 739                                                 DBUS_TYPE_STRING, &passphrase);
 740         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 741                 const char *key_mgmt = "NONE", *index = "0";
 742                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 743                                                 DBUS_TYPE_STRING, &key_mgmt);
 744
 745                 if (passphrase) {
 746                         int size = strlen(passphrase);
 747                         if (size == 10 || size == 26) {
 748                                 unsigned char *key = malloc(13);
 749                                 char tmp[3];
 750                                 int i;
 751                                 memset(tmp, 0, sizeof(tmp));
 752                                 if (key == NULL)
 753                                         size = 0;
 754                                 for (i = 0; i < size / 2; i++) {
 755                                         memcpy(tmp, passphrase + (i * 2), 2);
 756                                         key[i] = (unsigned char) strtol(tmp,
 757                                                                 NULL, 16);
 758                                 }
 759                                 connman_dbus_dict_append_array(&dict,
 760                                                 "wep_key0", DBUS_TYPE_BYTE,
 761                                                         &key, size / 2);
 762                                 free(key);
 763                         } else
 764                                 connman_dbus_dict_append_variant(&dict,
 765                                                 "wep_key0", DBUS_TYPE_STRING,
 766                                                                 &passphrase);
 767                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 768                                                 DBUS_TYPE_STRING, &index);
 769                 }
 770         } else {
 771                 const char *key_mgmt = "NONE";
 772                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 773                                                 DBUS_TYPE_STRING, &key_mgmt);
 774         }
 775
 776         dbus_message_iter_close_container(&array, &dict);
 777
 778         dbus_error_init(&error);
 779
 780         reply = dbus_connection_send_with_reply_and_block(connection,
 781                                                         message, -1, &error);
 782         if (reply == NULL) {
 783                 if (dbus_error_is_set(&error) == TRUE) {
 784                         connman_error("%s", error.message);
 785                         dbus_error_free(&error);
 786                 } else
 787                         connman_error("Failed to set network options");
 788                 dbus_message_unref(message);
 789                 return -EIO;
 790         }
 791
 792         dbus_message_unref(message);
 793
 794         dbus_message_unref(reply);
 795
 796         return 0;
 797 }
 798
 799 static int initiate_scan(struct supplicant_task *task)
 800 {
 801         DBusMessage *message;
 802         DBusPendingCall *call;
 803
 804         DBG("task %p", task);
 805
 806         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 807                                         SUPPLICANT_INTF ".Interface", "scan");
 808         if (message == NULL)
 809                 return -ENOMEM;
 810
 811         if (dbus_connection_send_with_reply(connection, message,
 812                                                 &call, TIMEOUT) == FALSE) {
 813                 connman_error("Failed to initiate scan");
 814                 dbus_message_unref(message);
 815                 return -EIO;
 816         }
 817
 818         dbus_message_unref(message);
 819
 820         return 0;
 821 }
 822
 823 static struct {
 824         char *name;
 825         char *value;
 826 } special_ssid[] = {
 827         { "<hidden>", "hidden"  },
 828         { "default",  "linksys" },
 829         { "wireless"  },
 830         { "linksys"   },
 831         { "netgear"   },
 832         { "dlink"     },
 833         { "2wire"     },
 834         { "compaq"    },
 835         { "tsunami"   },
 836         { "comcomcom", "3com"     },
 837         { "3Com",      "3com"     },
 838         { "Symbol",    "symbol"   },
 839         { "Wireless" , "wireless" },
 840         { "WLAN",      "wlan"     },
 841         { }
 842 };
 843
 844 static char *build_group(const char *addr, const char *name,
 845                         const unsigned char *ssid, unsigned int ssid_len,
 846                                         const char *mode, const char *security)
 847 {
 848         GString *str;
 849         unsigned int i;
 850
 851         if (addr == NULL)
 852                 return NULL;
 853
 854         str = g_string_sized_new((ssid_len * 2) + 24);
 855         if (str == NULL)
 856                 return NULL;
 857
 858         for (i = 0; special_ssid[i].name; i++) {
 859                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 860                         if (special_ssid[i].value == NULL)
 861                                 g_string_append_printf(str, "%s_%s",
 862                                                                 name, addr);
 863                         else
 864                                 g_string_append_printf(str, "%s_%s",
 865                                                 special_ssid[i].value, addr);
 866                         goto done;
 867                 }
 868         }
 869
 870         if (ssid_len > 0 && ssid[0] != '\0') {
 871                 for (i = 0; i < ssid_len; i++)
 872                         g_string_append_printf(str, "%02x", ssid[i]);
 873         } else
 874                 g_string_append_printf(str, "hidden_%s", addr);
 875
 876 done:
 877         g_string_append_printf(str, "_%s_%s", mode, security);
 878
 879         return g_string_free(str, FALSE);
 880 }
 881
 882 static void extract_addr(DBusMessageIter *value,
 883                                         struct supplicant_result *result)
 884 {
 885         DBusMessageIter array;
 886         struct ether_addr *eth;
 887         unsigned char *addr;
 888         int addr_len;
 889
 890         dbus_message_iter_recurse(value, &array);
 891         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 892
 893         if (addr_len != 6)
 894                 return;
 895
 896         result->addr = g_try_malloc(addr_len);
 897         if (result->addr == NULL)
 898                 return;
 899
 900         memcpy(result->addr, addr, addr_len);
 901         result->addr_len = addr_len;
 902
 903         result->path = g_try_malloc0(13);
 904         if (result->path == NULL)
 905                 return;
 906
 907         eth = (void *) addr;
 908
 909         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
 910                                                 eth->ether_addr_octet[0],
 911                                                 eth->ether_addr_octet[1],
 912                                                 eth->ether_addr_octet[2],
 913                                                 eth->ether_addr_octet[3],
 914                                                 eth->ether_addr_octet[4],
 915                                                 eth->ether_addr_octet[5]);
 916 }
 917
 918 static void extract_ssid(DBusMessageIter *value,
 919                                         struct supplicant_result *result)
 920 {
 921         DBusMessageIter array;
 922         unsigned char *ssid;
 923         int ssid_len;
 924
 925         dbus_message_iter_recurse(value, &array);
 926         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 927
 928         if (ssid_len < 1)
 929                 return;
 930
 931         result->ssid = g_try_malloc(ssid_len);
 932         if (result->ssid == NULL)
 933                 return;
 934
 935         memcpy(result->ssid, ssid, ssid_len);
 936         result->ssid_len = ssid_len;
 937
 938         result->name = g_try_malloc0(ssid_len + 1);
 939         if (result->name == NULL)
 940                 return;
 941
 942         memcpy(result->name, ssid, ssid_len);
 943 }
 944
 945 static void extract_wpaie(DBusMessageIter *value,
 946                                         struct supplicant_result *result)
 947 {
 948         DBusMessageIter array;
 949         unsigned char *ie;
 950         int ie_len;
 951
 952         dbus_message_iter_recurse(value, &array);
 953         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 954
 955         if (ie_len > 0)
 956                 result->has_wpa = TRUE;
 957 }
 958
 959 static void extract_rsnie(DBusMessageIter *value,
 960                                         struct supplicant_result *result)
 961 {
 962         DBusMessageIter array;
 963         unsigned char *ie;
 964         int ie_len;
 965
 966         dbus_message_iter_recurse(value, &array);
 967         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 968
 969         if (ie_len > 0)
 970                 result->has_rsn = TRUE;
 971 }
 972
 973 static void extract_wpsie(DBusMessageIter *value,
 974                                         struct supplicant_result *result)
 975 {
 976         DBusMessageIter array;
 977         unsigned char *ie;
 978         int ie_len;
 979
 980         dbus_message_iter_recurse(value, &array);
 981         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 982
 983         if (ie_len > 0)
 984                 result->has_wps = TRUE;
 985 }
 986
 987 static void extract_capabilites(DBusMessageIter *value,
 988                                         struct supplicant_result *result)
 989 {
 990         dbus_message_iter_get_basic(value, &result->capabilities);
 991
 992         if (result->capabilities & IEEE80211_CAP_ESS)
 993                 result->adhoc = FALSE;
 994         else if (result->capabilities & IEEE80211_CAP_IBSS)
 995                 result->adhoc = TRUE;
 996
 997         if (result->capabilities & IEEE80211_CAP_PRIVACY)
 998                 result->has_wep = TRUE;
 999 }
1000
1001 static unsigned char calculate_strength(struct supplicant_result *result)
1002 {
1003         if (result->quality < 0) {
1004                 unsigned char strength;
1005
1006                 if (result->level > 0)
1007                         strength = 100 - result->level;
1008                 else
1009                         strength = 120 + result->level;
1010
1011                 if (strength > 100)
1012                         strength = 100;
1013
1014                 return strength;
1015         }
1016
1017         return result->quality;
1018 }
1019
1020 static unsigned short calculate_channel(struct supplicant_result *result)
1021 {
1022         if (result->frequency < 0)
1023                 return 0;
1024
1025         return (result->frequency - 2407) / 5;
1026 }
1027
1028 static void get_properties(struct supplicant_task *task);
1029
1030 static void properties_reply(DBusPendingCall *call, void *user_data)
1031 {
1032         struct supplicant_task *task = user_data;
1033         struct supplicant_result result;
1034         struct connman_network *network;
1035         DBusMessage *reply;
1036         DBusMessageIter array, dict;
1037         unsigned char strength;
1038         unsigned short channel, frequency;
1039         const char *mode, *security;
1040         char *group;
1041
1042         DBG("task %p", task);
1043
1044         reply = dbus_pending_call_steal_reply(call);
1045         if (reply == NULL) {
1046                 get_properties(task);
1047                 return;
1048         }
1049
1050         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1051                 dbus_message_unref(reply);
1052                 get_properties(task);
1053                 return;
1054         }
1055
1056         memset(&result, 0, sizeof(result));
1057         result.frequency = -1;
1058         result.quality = -1;
1059         result.level = 0;
1060         result.noise = 0;
1061
1062         dbus_message_iter_init(reply, &array);
1063
1064         dbus_message_iter_recurse(&array, &dict);
1065
1066         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1067                 DBusMessageIter entry, value;
1068                 const char *key;
1069
1070                 dbus_message_iter_recurse(&dict, &entry);
1071                 dbus_message_iter_get_basic(&entry, &key);
1072
1073                 dbus_message_iter_next(&entry);
1074
1075                 dbus_message_iter_recurse(&entry, &value);
1076
1077                 //type = dbus_message_iter_get_arg_type(&value);
1078                 //dbus_message_iter_get_basic(&value, &val);
1079
1080                 /*
1081                  * bssid        : a (97)
1082                  * ssid         : a (97)
1083                  * wpaie        : a (97)
1084                  * rsnie        : a (97)
1085                  * wpsie        : a (97)
1086                  * frequency    : i (105)
1087                  * capabilities : q (113)
1088                  * quality      : i (105)
1089                  * noise        : i (105)
1090                  * level        : i (105)
1091                  * maxrate      : i (105)
1092                  */
1093
1094                 if (g_str_equal(key, "bssid") == TRUE)
1095                         extract_addr(&value, &result);
1096                 else if (g_str_equal(key, "ssid") == TRUE)
1097                         extract_ssid(&value, &result);
1098                 else if (g_str_equal(key, "wpaie") == TRUE)
1099                         extract_wpaie(&value, &result);
1100                 else if (g_str_equal(key, "rsnie") == TRUE)
1101                         extract_rsnie(&value, &result);
1102                 else if (g_str_equal(key, "wpsie") == TRUE)
1103                         extract_wpsie(&value, &result);
1104                 else if (g_str_equal(key, "capabilities") == TRUE)
1105                         extract_capabilites(&value, &result);
1106                 else if (g_str_equal(key, "frequency") == TRUE)
1107                         dbus_message_iter_get_basic(&value, &result.frequency);
1108                 else if (g_str_equal(key, "quality") == TRUE)
1109                         dbus_message_iter_get_basic(&value, &result.quality);
1110                 else if (g_str_equal(key, "noise") == TRUE)
1111                         dbus_message_iter_get_basic(&value, &result.noise);
1112                 else if (g_str_equal(key, "level") == TRUE)
1113                         dbus_message_iter_get_basic(&value, &result.level);
1114                 else if (g_str_equal(key, "maxrate") == TRUE)
1115                         dbus_message_iter_get_basic(&value, &result.maxrate);
1116
1117                 dbus_message_iter_next(&dict);
1118         }
1119
1120         if (result.path == NULL)
1121                 goto done;
1122
1123         if (result.path[0] == '\0')
1124                 goto done;
1125
1126         if (result.frequency > 0 && result.frequency < 14)
1127                 result.frequency = 2407 + (5 * result.frequency);
1128         else if (result.frequency == 14)
1129                 result.frequency = 2484;
1130
1131         strength = calculate_strength(&result);
1132         channel  = calculate_channel(&result);
1133
1134         frequency = (result.frequency < 0) ? 0 : result.frequency;
1135
1136         if (result.has_rsn == TRUE)
1137                 security = "rsn";
1138         else if (result.has_wpa == TRUE)
1139                 security = "wpa";
1140         else if (result.has_wep == TRUE)
1141                 security = "wep";
1142         else
1143                 security = "none";
1144
1145         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1146
1147         group = build_group(result.path, result.name,
1148                                         result.ssid, result.ssid_len,
1149                                                         mode, security);
1150
1151         network = connman_device_get_network(task->device, result.path);
1152         if (network == NULL) {
1153                 int index;
1154
1155                 network = connman_network_create(result.path,
1156                                                 CONNMAN_NETWORK_TYPE_WIFI);
1157                 if (network == NULL)
1158                         goto done;
1159
1160                 index = connman_device_get_index(task->device);
1161                 connman_network_set_index(network, index);
1162
1163                 connman_network_set_protocol(network,
1164                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1165
1166                 connman_network_set_address(network, result.addr,
1167                                                         result.addr_len);
1168
1169                 if (connman_device_add_network(task->device, network) < 0) {
1170                         connman_network_unref(network);
1171                         goto done;
1172                 }
1173         }
1174
1175         if (result.name != NULL && result.name[0] != '\0')
1176                 connman_network_set_name(network, result.name);
1177
1178         connman_network_set_blob(network, "WiFi.SSID",
1179                                                 result.ssid, result.ssid_len);
1180
1181         connman_network_set_string(network, "WiFi.Mode", mode);
1182
1183         DBG("%s (%s %s) strength %d (%s)",
1184                                 result.name, mode, security, strength,
1185                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1186
1187         connman_network_set_available(network, TRUE);
1188         connman_network_set_strength(network, strength);
1189
1190         connman_network_set_uint16(network, "Frequency", frequency);
1191         connman_network_set_uint16(network, "WiFi.Channel", channel);
1192         connman_network_set_string(network, "WiFi.Security", security);
1193
1194         connman_network_set_group(network, group);
1195
1196         g_free(group);
1197
1198 done:
1199         g_free(result.path);
1200         g_free(result.addr);
1201         g_free(result.name);
1202         g_free(result.ssid);
1203
1204         dbus_message_unref(reply);
1205
1206         get_properties(task);
1207 }
1208
1209 static void get_properties(struct supplicant_task *task)
1210 {
1211         DBusMessage *message;
1212         DBusPendingCall *call;
1213         char *path;
1214
1215         path = g_slist_nth_data(task->scan_results, 0);
1216         if (path == NULL)
1217                 goto noscan;
1218
1219         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1220                                                 SUPPLICANT_INTF ".BSSID",
1221                                                                 "properties");
1222
1223         task->scan_results = g_slist_remove(task->scan_results, path);
1224         g_free(path);
1225
1226         if (message == NULL)
1227                 goto noscan;
1228
1229         if (dbus_connection_send_with_reply(connection, message,
1230                                                 &call, TIMEOUT) == FALSE) {
1231                 connman_error("Failed to get network properties");
1232                 dbus_message_unref(message);
1233                 goto noscan;
1234         }
1235
1236         if (call == NULL) {
1237                 connman_error("D-Bus connection not available");
1238                 dbus_message_unref(message);
1239                 goto noscan;
1240         }
1241
1242         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1243
1244         dbus_message_unref(message);
1245
1246         return;
1247
1248 noscan:
1249         if (task->noscan == FALSE)
1250                 connman_device_set_scanning(task->device, FALSE);
1251 }
1252
1253 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1254 {
1255         struct supplicant_task *task = user_data;
1256         DBusMessage *reply;
1257         DBusError error;
1258         char **results;
1259         int i, num_results;
1260
1261         DBG("task %p", task);
1262
1263         reply = dbus_pending_call_steal_reply(call);
1264         if (reply == NULL)
1265                 goto noscan;
1266
1267         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1268                 goto done;
1269
1270         dbus_error_init(&error);
1271
1272         if (dbus_message_get_args(reply, &error,
1273                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1274                                                 &results, &num_results,
1275                                                 DBUS_TYPE_INVALID) == FALSE) {
1276                 if (dbus_error_is_set(&error) == TRUE) {
1277                         connman_error("%s", error.message);
1278                         dbus_error_free(&error);
1279                 } else
1280                         connman_error("Wrong arguments for scan result");
1281                 goto done;
1282         }
1283
1284         if (num_results == 0)
1285                 goto done;
1286
1287         for (i = 0; i < num_results; i++) {
1288                 char *path = g_strdup(results[i]);
1289                 if (path == NULL)
1290                         continue;
1291
1292                 task->scan_results = g_slist_append(task->scan_results, path);
1293         }
1294
1295         g_strfreev(results);
1296
1297         dbus_message_unref(reply);
1298
1299         get_properties(task);
1300
1301         return;
1302
1303 done:
1304         dbus_message_unref(reply);
1305
1306 noscan:
1307         if (task->noscan == FALSE)
1308                 connman_device_set_scanning(task->device, FALSE);
1309 }
1310
1311 static void scan_results_available(struct supplicant_task *task)
1312 {
1313         DBusMessage *message;
1314         DBusPendingCall *call;
1315
1316         DBG("task %p", task);
1317
1318         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1319                                                 SUPPLICANT_INTF ".Interface",
1320                                                         "scanResults");
1321         if (message == NULL)
1322                 return;
1323
1324         if (dbus_connection_send_with_reply(connection, message,
1325                                                 &call, TIMEOUT) == FALSE) {
1326                 connman_error("Failed to request scan result");
1327                 goto done;
1328         }
1329
1330         if (task->noscan == FALSE)
1331                 connman_device_set_scanning(task->device, TRUE);
1332
1333         if (call == NULL) {
1334                 connman_error("D-Bus connection not available");
1335                 goto done;
1336         }
1337
1338         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1339
1340 done:
1341         dbus_message_unref(message);
1342 }
1343
1344 static enum supplicant_state string2state(const char *state)
1345 {
1346         if (g_str_equal(state, "INACTIVE") == TRUE)
1347                 return WPA_INACTIVE;
1348         else if (g_str_equal(state, "SCANNING") == TRUE)
1349                 return WPA_SCANNING;
1350         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1351                 return WPA_ASSOCIATING;
1352         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1353                 return WPA_ASSOCIATED;
1354         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1355                 return WPA_GROUP_HANDSHAKE;
1356         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1357                 return WPA_4WAY_HANDSHAKE;
1358         else if (g_str_equal(state, "COMPLETED") == TRUE)
1359                 return WPA_COMPLETED;
1360         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1361                 return WPA_DISCONNECTED;
1362         else
1363                 return WPA_INVALID;
1364 }
1365
1366 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1367 {
1368         DBusError error;
1369         const char *newstate, *oldstate;
1370         enum supplicant_state state;
1371
1372         dbus_error_init(&error);
1373
1374         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1375                                                 DBUS_TYPE_STRING, &oldstate,
1376                                                 DBUS_TYPE_INVALID) == FALSE) {
1377                 if (dbus_error_is_set(&error) == TRUE) {
1378                         connman_error("%s", error.message);
1379                         dbus_error_free(&error);
1380                 } else
1381                         connman_error("Wrong arguments for state change");
1382                 return;
1383         }
1384
1385         DBG("state %s ==> %s", oldstate, newstate);
1386
1387         state = string2state(newstate);
1388         if (state == WPA_INVALID)
1389                 return;
1390
1391         task->state = state;
1392
1393         switch (task->state) {
1394         case WPA_SCANNING:
1395                 task->noscan = TRUE;
1396                 connman_device_set_scanning(task->device, TRUE);
1397                 break;
1398         case WPA_ASSOCIATING:
1399         case WPA_ASSOCIATED:
1400         case WPA_4WAY_HANDSHAKE:
1401         case WPA_GROUP_HANDSHAKE:
1402                 task->noscan = TRUE;
1403                 break;
1404         case WPA_COMPLETED:
1405         case WPA_DISCONNECTED:
1406                 task->noscan = FALSE;
1407                 break;
1408         case WPA_INACTIVE:
1409                 task->noscan = FALSE;
1410                 connman_device_set_scanning(task->device, FALSE);
1411                 break;
1412         case WPA_INVALID:
1413                 break;
1414         }
1415
1416         if (task->network == NULL)
1417                 return;
1418
1419         switch (task->state) {
1420         case WPA_COMPLETED:
1421                 /* carrier on */
1422                 connman_network_set_connected(task->network, TRUE);
1423                 connman_device_set_scanning(task->device, FALSE);
1424                 break;
1425         case WPA_DISCONNECTED:
1426                 /* carrier off */
1427                 connman_network_set_connected(task->network, FALSE);
1428                 connman_device_set_scanning(task->device, FALSE);
1429                 break;
1430         case WPA_ASSOCIATING:
1431                 connman_network_set_associating(task->network, TRUE);
1432                 break;
1433         default:
1434                 connman_network_set_associating(task->network, FALSE);
1435                 break;
1436         }
1437 }
1438
1439 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1440                                                 DBusMessage *msg, void *data)
1441 {
1442         struct supplicant_task *task;
1443         const char *member, *path;
1444
1445         if (dbus_message_has_interface(msg,
1446                                 SUPPLICANT_INTF ".Interface") == FALSE)
1447                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1448
1449         member = dbus_message_get_member(msg);
1450         if (member == NULL)
1451                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1452
1453         path = dbus_message_get_path(msg);
1454         if (path == NULL)
1455                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1456
1457         task = find_task_by_path(path);
1458         if (task == NULL)
1459                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1460
1461         DBG("task %p member %s", task, member);
1462
1463         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1464                 scan_results_available(task);
1465         else if (g_str_equal(member, "StateChange") == TRUE)
1466                 state_change(task, msg);
1467
1468         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1469 }
1470
1471 int supplicant_start(struct connman_device *device)
1472 {
1473         struct supplicant_task *task;
1474
1475         DBG("device %p", device);
1476
1477         task = g_try_new0(struct supplicant_task, 1);
1478         if (task == NULL)
1479                 return -ENOMEM;
1480
1481         task->ifindex = connman_device_get_index(device);
1482         task->ifname = connman_inet_ifname(task->ifindex);
1483
1484         if (task->ifname == NULL) {
1485                 g_free(task);
1486                 return -ENOMEM;
1487         }
1488
1489         task->device = connman_device_ref(device);
1490
1491         task->created = FALSE;
1492         task->noscan = FALSE;
1493         task->state = WPA_INVALID;
1494
1495         task_list = g_slist_append(task_list, task);
1496
1497         return create_interface(task);
1498 }
1499
1500 int supplicant_stop(struct connman_device *device)
1501 {
1502         int index = connman_device_get_index(device);
1503         struct supplicant_task *task;
1504
1505         DBG("device %p", device);
1506
1507         task = find_task_by_index(index);
1508         if (task == NULL)
1509                 return -ENODEV;
1510
1511         task_list = g_slist_remove(task_list, task);
1512
1513         disable_network(task);
1514
1515         remove_network(task);
1516
1517         return remove_interface(task);
1518 }
1519
1520 int supplicant_scan(struct connman_device *device)
1521 {
1522         int index = connman_device_get_index(device);
1523         struct supplicant_task *task;
1524         int err;
1525
1526         DBG("device %p", device);
1527
1528         task = find_task_by_index(index);
1529         if (task == NULL)
1530                 return -ENODEV;
1531
1532         switch (task->state) {
1533         case WPA_SCANNING:
1534                 return -EALREADY;
1535         case WPA_ASSOCIATING:
1536         case WPA_ASSOCIATED:
1537         case WPA_4WAY_HANDSHAKE:
1538         case WPA_GROUP_HANDSHAKE:
1539                 return -EBUSY;
1540         default:
1541                 break;
1542         }
1543
1544         err = initiate_scan(task);
1545
1546         return 0;
1547 }
1548
1549 int supplicant_connect(struct connman_network *network)
1550 {
1551         struct supplicant_task *task;
1552         const char *address, *security, *passphrase;
1553         const void *ssid;
1554         unsigned int ssid_len;
1555         int index;
1556
1557         DBG("network %p", network);
1558
1559         address = connman_network_get_string(network, "Address");
1560         security = connman_network_get_string(network, "WiFi.Security");
1561         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1562
1563         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1564
1565         DBG("address %s security %s passphrase %s",
1566                                         address, security, passphrase);
1567
1568         if (security == NULL && passphrase == NULL)
1569                 return -EINVAL;
1570
1571         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1572                 return -EINVAL;
1573
1574         index = connman_network_get_index(network);
1575
1576         task = find_task_by_index(index);
1577         if (task == NULL)
1578                 return -ENODEV;
1579
1580         task->network = connman_network_ref(network);
1581
1582         add_network(task);
1583
1584         select_network(task);
1585         disable_network(task);
1586
1587         set_network(task, ssid, ssid_len, address, security, passphrase);
1588
1589         enable_network(task);
1590
1591         connman_network_set_associating(task->network, TRUE);
1592
1593         return 0;
1594 }
1595
1596 int supplicant_disconnect(struct connman_network *network)
1597 {
1598         struct supplicant_task *task;
1599         int index;
1600
1601         DBG("network %p", network);
1602
1603         index = connman_network_get_index(network);
1604
1605         task = find_task_by_index(index);
1606         if (task == NULL)
1607                 return -ENODEV;
1608
1609         disable_network(task);
1610
1611         remove_network(task);
1612
1613         connman_network_set_connected(task->network, FALSE);
1614
1615         connman_network_unref(task->network);
1616
1617         return 0;
1618 }
1619
1620 static void supplicant_activate(DBusConnection *conn)
1621 {
1622         DBusMessage *message;
1623
1624         DBG("conn %p", conn);
1625
1626         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1627                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1628         if (message == NULL)
1629                 return;
1630
1631         dbus_message_set_no_reply(message, TRUE);
1632
1633         dbus_connection_send(conn, message, NULL);
1634
1635         dbus_message_unref(message);
1636 }
1637
1638 static GSList *driver_list = NULL;
1639
1640 static void supplicant_probe(DBusConnection *conn, void *user_data)
1641 {
1642         GSList *list;
1643
1644         DBG("conn %p", conn);
1645
1646         for (list = driver_list; list; list = list->next) {
1647                 struct supplicant_driver *driver = list->data;
1648
1649                 DBG("driver %p name %s", driver, driver->name);
1650
1651                 if (driver->probe)
1652                         driver->probe();
1653         }
1654 }
1655
1656 static void supplicant_remove(DBusConnection *conn, void *user_data)
1657 {
1658         GSList *list;
1659
1660         DBG("conn %p", conn);
1661
1662         for (list = driver_list; list; list = list->next) {
1663                 struct supplicant_driver *driver = list->data;
1664
1665                 DBG("driver %p name %s", driver, driver->name);
1666
1667                 if (driver->remove)
1668                         driver->remove();
1669         }
1670 }
1671
1672 static const char *supplicant_rule = "type=signal,"
1673                                 "interface=" SUPPLICANT_INTF ".Interface";
1674 static guint watch;
1675
1676 static int supplicant_create(void)
1677 {
1678         if (g_slist_length(driver_list) > 0)
1679                 return 0;
1680
1681         connection = connman_dbus_get_connection();
1682         if (connection == NULL)
1683                 return -EIO;
1684
1685         DBG("connection %p", connection);
1686
1687         if (dbus_connection_add_filter(connection,
1688                                 supplicant_filter, NULL, NULL) == FALSE) {
1689                 connection = connman_dbus_get_connection();
1690                 return -EIO;
1691         }
1692
1693         dbus_bus_add_match(connection, supplicant_rule, NULL);
1694         dbus_connection_flush(connection);
1695
1696         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1697                         supplicant_probe, supplicant_remove, NULL, NULL);
1698
1699         return 0;
1700 }
1701
1702 static void supplicant_destroy(void)
1703 {
1704         if (g_slist_length(driver_list) > 0)
1705                 return;
1706
1707         DBG("connection %p", connection);
1708
1709         if (watch > 0)
1710                 g_dbus_remove_watch(connection, watch);
1711
1712         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1713         dbus_connection_flush(connection);
1714
1715         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1716
1717         dbus_connection_unref(connection);
1718         connection = NULL;
1719 }
1720
1721 int supplicant_register(struct supplicant_driver *driver)
1722 {
1723         int err;
1724
1725         DBG("driver %p name %s", driver, driver->name);
1726
1727         err = supplicant_create();
1728         if (err < 0)
1729                 return err;
1730
1731         driver_list = g_slist_append(driver_list, driver);
1732
1733         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1734                 supplicant_probe(connection, NULL);
1735         else
1736                 supplicant_activate(connection);
1737
1738         return 0;
1739 }
1740
1741 void supplicant_unregister(struct supplicant_driver *driver)
1742 {
1743         DBG("driver %p name %s", driver, driver->name);
1744
1745         supplicant_remove(connection, NULL);
1746
1747         driver_list = g_slist_remove(driver_list, driver);
1748
1749         supplicant_destroy();
1750 }