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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <net/ethernet.h>
  31
  32 #include <gdbus.h>
  33
  34 #define CONNMAN_API_SUBJECT_TO_CHANGE
  35 #include <connman/device.h>
  36 #include <connman/dbus.h>
  37 #include <connman/log.h>
  38
  39 #include "inet.h"
  40 #include "supplicant.h"
  41
  42 #define TIMEOUT 5000
  43
  44 #define IEEE80211_CAP_ESS       0x0001
  45 #define IEEE80211_CAP_IBSS      0x0002
  46 #define IEEE80211_CAP_PRIVACY   0x0010
  47
  48 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  49 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  50 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  51
  52 /* Taken from "WPA Supplicant - Common definitions" */
  53 enum supplicant_state {
  54         /**
  55          * WPA_DISCONNECTED - Disconnected state
  56          *
  57          * This state indicates that client is not associated, but is likely to
  58          * start looking for an access point. This state is entered when a
  59          * connection is lost.
  60          */
  61         WPA_DISCONNECTED,
  62
  63         /**
  64          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  65          *
  66          * This state is entered if there are no enabled networks in the
  67          * configuration. wpa_supplicant is not trying to associate with a new
  68          * network and external interaction (e.g., ctrl_iface call to add or
  69          * enable a network) is needed to start association.
  70          */
  71         WPA_INACTIVE,
  72
  73         /**
  74          * WPA_SCANNING - Scanning for a network
  75          *
  76          * This state is entered when wpa_supplicant starts scanning for a
  77          * network.
  78          */
  79         WPA_SCANNING,
  80
  81         /**
  82          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  83          *
  84          * This state is entered when wpa_supplicant has found a suitable BSS
  85          * to associate with and the driver is configured to try to associate
  86          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  87          * state is entered when the driver is configured to try to associate
  88          * with a network using the configured SSID and security policy.
  89          */
  90         WPA_ASSOCIATING,
  91
  92         /**
  93          * WPA_ASSOCIATED - Association completed
  94          *
  95          * This state is entered when the driver reports that association has
  96          * been successfully completed with an AP. If IEEE 802.1X is used
  97          * (with or without WPA/WPA2), wpa_supplicant remains in this state
  98          * until the IEEE 802.1X/EAPOL authentication has been completed.
  99          */
 100         WPA_ASSOCIATED,
 101
 102         /**
 103          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 104          *
 105          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 106          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 107          * frame after association. In case of WPA-EAP, this state is entered
 108          * when the IEEE 802.1X/EAPOL authentication has been completed.
 109          */
 110         WPA_4WAY_HANDSHAKE,
 111
 112         /**
 113          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 114          *
 115          * This state is entered when 4-Way Key Handshake has been completed
 116          * (i.e., when the supplicant sends out message 4/4) and when Group
 117          * Key rekeying is started by the AP (i.e., when supplicant receives
 118          * message 1/2).
 119          */
 120         WPA_GROUP_HANDSHAKE,
 121
 122         /**
 123          * WPA_COMPLETED - All authentication completed
 124          *
 125          * This state is entered when the full authentication process is
 126          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 127          * successfully completed. With WPA, this state is entered after the
 128          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 129          * completed after dynamic keys are received (or if not used, after
 130          * the EAP authentication has been completed). With static WEP keys and
 131          * plaintext connections, this state is entered when an association
 132          * has been completed.
 133          *
 134          * This state indicates that the supplicant has completed its
 135          * processing for the association phase and that data connection is
 136          * fully configured.
 137          */
 138         WPA_COMPLETED,
 139
 140         /**
 141          * WPA_INVALID - Invalid state (parsing error)
 142          *
 143          * This state is returned if the string input is invalid. It is not
 144          * an official wpa_supplicant state.
 145          */
 146         WPA_INVALID,
 147 };
 148
 149 struct supplicant_result {
 150         char *path;
 151         char *name;
 152         char *addr;
 153         unsigned char *ssid;
 154         unsigned int ssid_len;
 155         dbus_uint16_t capabilities;
 156         gboolean adhoc;
 157         gboolean has_wep;
 158         gboolean has_wpa;
 159         gboolean has_rsn;
 160         gboolean has_wps;
 161         dbus_int32_t quality;
 162         dbus_int32_t noise;
 163         dbus_int32_t level;
 164         dbus_int32_t maxrate;
 165 };
 166
 167 struct supplicant_task {
 168         int ifindex;
 169         char *ifname;
 170         struct connman_device *device;
 171         struct connman_network *network;
 172         char *path;
 173         char *netpath;
 174         gboolean created;
 175         enum supplicant_state state;
 176         gboolean noscan;
 177         GSList *scan_results;
 178 };
 179
 180 static GSList *task_list = NULL;
 181
 182 static DBusConnection *connection;
 183
 184 static void free_task(struct supplicant_task *task)
 185 {
 186         DBG("task %p", task);
 187
 188         g_free(task->ifname);
 189         g_free(task->path);
 190         g_free(task);
 191 }
 192
 193 static struct supplicant_task *find_task_by_index(int index)
 194 {
 195         GSList *list;
 196
 197         for (list = task_list; list; list = list->next) {
 198                 struct supplicant_task *task = list->data;
 199
 200                 if (task->ifindex == index)
 201                         return task;
 202         }
 203
 204         return NULL;
 205 }
 206
 207 static struct supplicant_task *find_task_by_path(const char *path)
 208 {
 209         GSList *list;
 210
 211         for (list = task_list; list; list = list->next) {
 212                 struct supplicant_task *task = list->data;
 213
 214                 if (g_str_equal(task->path, path) == TRUE)
 215                         return task;
 216         }
 217
 218         return NULL;
 219 }
 220
 221 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 222 {
 223         struct supplicant_task *task = user_data;
 224         DBusMessage *reply;
 225         DBusError error;
 226         const char *path;
 227
 228         DBG("task %p", task);
 229
 230         reply = dbus_pending_call_steal_reply(call);
 231         if (reply == NULL)
 232                 return;
 233
 234         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 235                 goto done;
 236
 237         dbus_error_init(&error);
 238
 239         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 240                                                 DBUS_TYPE_INVALID) == FALSE) {
 241                 if (dbus_error_is_set(&error) == TRUE) {
 242                         connman_error("%s", error.message);
 243                         dbus_error_free(&error);
 244                 } else
 245                         connman_error("Wrong arguments for add interface");
 246                 goto done;
 247         }
 248
 249         DBG("path %s", path);
 250
 251         task->path = g_strdup(path);
 252         task->created = TRUE;
 253
 254         connman_device_set_powered(task->device, TRUE);
 255
 256 done:
 257         dbus_message_unref(reply);
 258 }
 259
 260 static int add_interface(struct supplicant_task *task)
 261 {
 262         DBusMessage *message;
 263         DBusPendingCall *call;
 264
 265         DBG("task %p", task);
 266
 267         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 268                                         SUPPLICANT_INTF, "addInterface");
 269         if (message == NULL)
 270                 return -ENOMEM;
 271
 272         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 273                                                         DBUS_TYPE_INVALID);
 274
 275         if (dbus_connection_send_with_reply(connection, message,
 276                                                 &call, TIMEOUT) == FALSE) {
 277                 connman_error("Failed to add interface");
 278                 dbus_message_unref(message);
 279                 return -EIO;
 280         }
 281
 282         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 283
 284         dbus_message_unref(message);
 285
 286         return -EINPROGRESS;
 287 }
 288
 289 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 290 {
 291         struct supplicant_task *task = user_data;
 292         DBusMessage *reply;
 293         DBusError error;
 294         const char *path;
 295
 296         DBG("task %p", task);
 297
 298         reply = dbus_pending_call_steal_reply(call);
 299         if (reply == NULL)
 300                 return;
 301
 302         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 303                 add_interface(task);
 304                 goto done;
 305         }
 306
 307         dbus_error_init(&error);
 308
 309         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 310                                                 DBUS_TYPE_INVALID) == FALSE) {
 311                 if (dbus_error_is_set(&error) == TRUE) {
 312                         connman_error("%s", error.message);
 313                         dbus_error_free(&error);
 314                 } else
 315                         connman_error("Wrong arguments for get interface");
 316                 goto done;
 317         }
 318
 319         DBG("path %s", path);
 320
 321         task->path = g_strdup(path);
 322         task->created = FALSE;
 323
 324         connman_device_set_powered(task->device, TRUE);
 325
 326 done:
 327         dbus_message_unref(reply);
 328 }
 329
 330 static int create_interface(struct supplicant_task *task)
 331 {
 332         DBusMessage *message;
 333         DBusPendingCall *call;
 334
 335         DBG("task %p", task);
 336
 337         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 338                                         SUPPLICANT_INTF, "getInterface");
 339         if (message == NULL)
 340                 return -ENOMEM;
 341
 342         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 343                                                         DBUS_TYPE_INVALID);
 344
 345         if (dbus_connection_send_with_reply(connection, message,
 346                                                 &call, TIMEOUT) == FALSE) {
 347                 connman_error("Failed to get interface");
 348                 dbus_message_unref(message);
 349                 return -EIO;
 350         }
 351
 352         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 353
 354         dbus_message_unref(message);
 355
 356         return -EINPROGRESS;
 357 }
 358
 359 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 360 {
 361         struct supplicant_task *task = user_data;
 362         DBusMessage *reply;
 363
 364         DBG("task %p", task);
 365
 366         reply = dbus_pending_call_steal_reply(call);
 367
 368         connman_device_set_powered(task->device, FALSE);
 369
 370         connman_device_unref(task->device);
 371
 372         free_task(task);
 373
 374         dbus_message_unref(reply);
 375 }
 376
 377 static int remove_interface(struct supplicant_task *task)
 378 {
 379         DBusMessage *message;
 380         DBusPendingCall *call;
 381
 382         DBG("task %p", task);
 383
 384         if (task->created == FALSE) {
 385                 connman_device_set_powered(task->device, FALSE);
 386                 return 0;
 387         }
 388
 389         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 390                                         SUPPLICANT_INTF, "removeInterface");
 391         if (message == NULL)
 392                 return -ENOMEM;
 393
 394         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 395                                                         DBUS_TYPE_INVALID);
 396
 397         if (dbus_connection_send_with_reply(connection, message,
 398                                                 &call, TIMEOUT) == FALSE) {
 399                 connman_error("Failed to remove interface");
 400                 dbus_message_unref(message);
 401                 return -EIO;
 402         }
 403
 404         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 405
 406         dbus_message_unref(message);
 407
 408         return -EINPROGRESS;
 409 }
 410
 411 #if 0
 412 static int set_ap_scan(struct supplicant_task *task)
 413 {
 414         DBusMessage *message, *reply;
 415         DBusError error;
 416         guint32 ap_scan = 1;
 417
 418         DBG("task %p", task);
 419
 420         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 421                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 422         if (message == NULL)
 423                 return -ENOMEM;
 424
 425         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 426                                                         DBUS_TYPE_INVALID);
 427
 428         dbus_error_init(&error);
 429
 430         reply = dbus_connection_send_with_reply_and_block(connection,
 431                                                         message, -1, &error);
 432         if (reply == NULL) {
 433                 if (dbus_error_is_set(&error) == TRUE) {
 434                         connman_error("%s", error.message);
 435                         dbus_error_free(&error);
 436                 } else
 437                         connman_error("Failed to set AP scan");
 438                 dbus_message_unref(message);
 439                 return -EIO;
 440         }
 441
 442         dbus_message_unref(message);
 443
 444         dbus_message_unref(reply);
 445
 446         return 0;
 447 }
 448 #endif
 449
 450 static int add_network(struct supplicant_task *task)
 451 {
 452         DBusMessage *message, *reply;
 453         DBusError error;
 454         const char *path;
 455
 456         DBG("task %p", task);
 457
 458         if (task->netpath != NULL)
 459                 return -EALREADY;
 460
 461         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 462                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 463         if (message == NULL)
 464                 return -ENOMEM;
 465
 466         dbus_error_init(&error);
 467
 468         reply = dbus_connection_send_with_reply_and_block(connection,
 469                                                         message, -1, &error);
 470         if (reply == NULL) {
 471                 if (dbus_error_is_set(&error) == TRUE) {
 472                         connman_error("%s", error.message);
 473                         dbus_error_free(&error);
 474                 } else
 475                         connman_error("Failed to add network");
 476                 dbus_message_unref(message);
 477                 return -EIO;
 478         }
 479
 480         dbus_message_unref(message);
 481
 482         dbus_error_init(&error);
 483
 484         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 485                                                 DBUS_TYPE_INVALID) == FALSE) {
 486                 if (dbus_error_is_set(&error) == TRUE) {
 487                         connman_error("%s", error.message);
 488                         dbus_error_free(&error);
 489                 } else
 490                         connman_error("Wrong arguments for network");
 491                 dbus_message_unref(reply);
 492                 return -EIO;
 493         }
 494
 495         DBG("path %s", path);
 496
 497         task->netpath = g_strdup(path);
 498
 499         dbus_message_unref(reply);
 500
 501         return 0;
 502 }
 503
 504 static int remove_network(struct supplicant_task *task)
 505 {
 506         DBusMessage *message, *reply;
 507         DBusError error;
 508
 509         DBG("task %p", task);
 510
 511         if (task->netpath == NULL)
 512                 return -EINVAL;
 513
 514         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 515                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 516         if (message == NULL)
 517                 return -ENOMEM;
 518
 519         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 520                                                         DBUS_TYPE_INVALID);
 521
 522         dbus_error_init(&error);
 523
 524         reply = dbus_connection_send_with_reply_and_block(connection,
 525                                                         message, -1, &error);
 526         if (reply == NULL) {
 527                 if (dbus_error_is_set(&error) == TRUE) {
 528                         connman_error("%s", error.message);
 529                         dbus_error_free(&error);
 530                 } else
 531                         connman_error("Failed to remove network");
 532                 dbus_message_unref(message);
 533                 return -EIO;
 534         }
 535
 536         dbus_message_unref(message);
 537
 538         dbus_message_unref(reply);
 539
 540         g_free(task->netpath);
 541         task->netpath = NULL;
 542
 543         return 0;
 544 }
 545
 546 static int select_network(struct supplicant_task *task)
 547 {
 548         DBusMessage *message, *reply;
 549         DBusError error;
 550
 551         DBG("task %p", task);
 552
 553         if (task->netpath == NULL)
 554                 return -EINVAL;
 555
 556         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 557                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 558         if (message == NULL)
 559                 return -ENOMEM;
 560
 561         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 562                                                         DBUS_TYPE_INVALID);
 563
 564         dbus_error_init(&error);
 565
 566         reply = dbus_connection_send_with_reply_and_block(connection,
 567                                                         message, -1, &error);
 568         if (reply == NULL) {
 569                 if (dbus_error_is_set(&error) == TRUE) {
 570                         connman_error("%s", error.message);
 571                         dbus_error_free(&error);
 572                 } else
 573                         connman_error("Failed to select network");
 574                 dbus_message_unref(message);
 575                 return -EIO;
 576         }
 577
 578         dbus_message_unref(message);
 579
 580         dbus_message_unref(reply);
 581
 582         return 0;
 583 }
 584
 585 static int enable_network(struct supplicant_task *task)
 586 {
 587         DBusMessage *message, *reply;
 588         DBusError error;
 589
 590         DBG("task %p", task);
 591
 592         if (task->netpath == NULL)
 593                 return -EINVAL;
 594
 595         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 596                                         SUPPLICANT_INTF ".Network", "enable");
 597         if (message == NULL)
 598                 return -ENOMEM;
 599
 600         dbus_error_init(&error);
 601
 602         reply = dbus_connection_send_with_reply_and_block(connection,
 603                                                         message, -1, &error);
 604         if (reply == NULL) {
 605                 if (dbus_error_is_set(&error) == TRUE) {
 606                         connman_error("%s", error.message);
 607                         dbus_error_free(&error);
 608                 } else
 609                         connman_error("Failed to enable network");
 610                 dbus_message_unref(message);
 611                 return -EIO;
 612         }
 613
 614         dbus_message_unref(message);
 615
 616         dbus_message_unref(reply);
 617
 618         return 0;
 619 }
 620
 621 static int disable_network(struct supplicant_task *task)
 622 {
 623         DBusMessage *message, *reply;
 624         DBusError error;
 625
 626         DBG("task %p", task);
 627
 628         if (task->netpath == NULL)
 629                 return -EINVAL;
 630
 631         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 632                                         SUPPLICANT_INTF ".Network", "disable");
 633         if (message == NULL)
 634                 return -ENOMEM;
 635
 636         dbus_error_init(&error);
 637
 638         reply = dbus_connection_send_with_reply_and_block(connection,
 639                                                         message, -1, &error);
 640         if (reply == NULL) {
 641                 if (dbus_error_is_set(&error) == TRUE) {
 642                         connman_error("%s", error.message);
 643                         dbus_error_free(&error);
 644                 } else
 645                         connman_error("Failed to disable network");
 646                 dbus_message_unref(message);
 647                 return -EIO;
 648         }
 649
 650         dbus_message_unref(message);
 651
 652         dbus_message_unref(reply);
 653
 654         return 0;
 655 }
 656
 657 static int set_network(struct supplicant_task *task,
 658                                 const unsigned char *network, int len,
 659                                 const char *address, const char *security,
 660                                                         const char *passphrase)
 661 {
 662         DBusMessage *message, *reply;
 663         DBusMessageIter array, dict;
 664         DBusError error;
 665
 666         DBG("task %p", task);
 667
 668         if (task->netpath == NULL)
 669                 return -EINVAL;
 670
 671         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 672                                         SUPPLICANT_INTF ".Network", "set");
 673         if (message == NULL)
 674                 return -ENOMEM;
 675
 676         dbus_message_iter_init_append(message, &array);
 677
 678         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 679                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 680                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 681                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 682
 683         if (address == NULL) {
 684                 dbus_uint32_t scan_ssid = 1;
 685                 connman_dbus_dict_append_variant(&dict, "scan_ssid",
 686                                                 DBUS_TYPE_UINT32, &scan_ssid);
 687         } else
 688                 connman_dbus_dict_append_variant(&dict, "bssid",
 689                                                 DBUS_TYPE_STRING, &address);
 690
 691         connman_dbus_dict_append_array(&dict, "ssid",
 692                                         DBUS_TYPE_BYTE, &network, len);
 693
 694         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 695                                 g_ascii_strcasecmp(security, "wpa2") == 0) {
 696                 const char *key_mgmt = "WPA-PSK";
 697                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 698                                                 DBUS_TYPE_STRING, &key_mgmt);
 699
 700                 if (passphrase && strlen(passphrase) > 0)
 701                         connman_dbus_dict_append_variant(&dict, "psk",
 702                                                 DBUS_TYPE_STRING, &passphrase);
 703         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 704                 const char *key_mgmt = "NONE", *index = "0";
 705                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 706                                                 DBUS_TYPE_STRING, &key_mgmt);
 707
 708                 if (passphrase) {
 709                         int size = strlen(passphrase);
 710                         if (size == 10 || size == 26) {
 711                                 unsigned char *key = malloc(13);
 712                                 char tmp[3];
 713                                 int i;
 714                                 memset(tmp, 0, sizeof(tmp));
 715                                 if (key == NULL)
 716                                         size = 0;
 717                                 for (i = 0; i < size / 2; i++) {
 718                                         memcpy(tmp, passphrase + (i * 2), 2);
 719                                         key[i] = (unsigned char) strtol(tmp,
 720                                                                 NULL, 16);
 721                                 }
 722                                 connman_dbus_dict_append_array(&dict,
 723                                                 "wep_key0", DBUS_TYPE_BYTE,
 724                                                         &key, size / 2);
 725                                 free(key);
 726                         } else
 727                                 connman_dbus_dict_append_variant(&dict,
 728                                                 "wep_key0", DBUS_TYPE_STRING,
 729                                                                 &passphrase);
 730                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 731                                                 DBUS_TYPE_STRING, &index);
 732                 }
 733         } else {
 734                 const char *key_mgmt = "NONE";
 735                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 736                                                 DBUS_TYPE_STRING, &key_mgmt);
 737         }
 738
 739         dbus_message_iter_close_container(&array, &dict);
 740
 741         dbus_error_init(&error);
 742
 743         reply = dbus_connection_send_with_reply_and_block(connection,
 744                                                         message, -1, &error);
 745         if (reply == NULL) {
 746                 if (dbus_error_is_set(&error) == TRUE) {
 747                         connman_error("%s", error.message);
 748                         dbus_error_free(&error);
 749                 } else
 750                         connman_error("Failed to set network options");
 751                 dbus_message_unref(message);
 752                 return -EIO;
 753         }
 754
 755         dbus_message_unref(message);
 756
 757         dbus_message_unref(reply);
 758
 759         return 0;
 760 }
 761
 762 static int initiate_scan(struct supplicant_task *task)
 763 {
 764         DBusMessage *message;
 765         DBusPendingCall *call;
 766
 767         DBG("task %p", task);
 768
 769         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 770                                         SUPPLICANT_INTF ".Interface", "scan");
 771         if (message == NULL)
 772                 return -ENOMEM;
 773
 774         if (dbus_connection_send_with_reply(connection, message,
 775                                                 &call, TIMEOUT) == FALSE) {
 776                 connman_error("Failed to initiate scan");
 777                 dbus_message_unref(message);
 778                 return -EIO;
 779         }
 780
 781         dbus_message_unref(message);
 782
 783         return 0;
 784 }
 785
 786 static void extract_addr(DBusMessageIter *value,
 787                                         struct supplicant_result *result)
 788 {
 789         DBusMessageIter array;
 790         struct ether_addr *eth;
 791         unsigned char *addr;
 792         int addr_len;
 793
 794         dbus_message_iter_recurse(value, &array);
 795         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 796
 797         if (addr_len != 6)
 798                 return;
 799
 800         eth = (void *) addr;
 801
 802         result->addr = g_try_malloc0(18);
 803         if (result->addr == NULL)
 804                 return;
 805
 806         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 807                                                 eth->ether_addr_octet[0],
 808                                                 eth->ether_addr_octet[1],
 809                                                 eth->ether_addr_octet[2],
 810                                                 eth->ether_addr_octet[3],
 811                                                 eth->ether_addr_octet[4],
 812                                                 eth->ether_addr_octet[5]);
 813
 814         result->path = g_try_malloc0(18);
 815         if (result->path == NULL)
 816                 return;
 817
 818         snprintf(result->path, 18, "%02X_%02X_%02X_%02X_%02X_%02X",
 819                                                 eth->ether_addr_octet[0],
 820                                                 eth->ether_addr_octet[1],
 821                                                 eth->ether_addr_octet[2],
 822                                                 eth->ether_addr_octet[3],
 823                                                 eth->ether_addr_octet[4],
 824                                                 eth->ether_addr_octet[5]);
 825 }
 826
 827 static void extract_ssid(DBusMessageIter *value,
 828                                         struct supplicant_result *result)
 829 {
 830         DBusMessageIter array;
 831         unsigned char *ssid;
 832         int ssid_len;
 833
 834         dbus_message_iter_recurse(value, &array);
 835         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 836
 837         if (ssid_len < 1)
 838                 return;
 839
 840         if (ssid[0] == '\0')
 841                 return;
 842
 843         result->ssid = g_try_malloc(ssid_len);
 844         if (result->ssid == NULL)
 845                 return;
 846
 847         memcpy(result->ssid, ssid, ssid_len);
 848         result->ssid_len = ssid_len;
 849
 850         result->name = g_try_malloc0(ssid_len + 1);
 851         if (result->name == NULL)
 852                 return;
 853
 854         memcpy(result->name, ssid, ssid_len);
 855 }
 856
 857 static void extract_wpaie(DBusMessageIter *value,
 858                                         struct supplicant_result *result)
 859 {
 860         DBusMessageIter array;
 861         unsigned char *ie;
 862         int ie_len;
 863
 864         dbus_message_iter_recurse(value, &array);
 865         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 866
 867         if (ie_len > 0)
 868                 result->has_wpa = TRUE;
 869 }
 870
 871 static void extract_rsnie(DBusMessageIter *value,
 872                                         struct supplicant_result *result)
 873 {
 874         DBusMessageIter array;
 875         unsigned char *ie;
 876         int ie_len;
 877
 878         dbus_message_iter_recurse(value, &array);
 879         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 880
 881         if (ie_len > 0)
 882                 result->has_rsn = TRUE;
 883 }
 884
 885 static void extract_wpsie(DBusMessageIter *value,
 886                                         struct supplicant_result *result)
 887 {
 888         DBusMessageIter array;
 889         unsigned char *ie;
 890         int ie_len;
 891
 892         dbus_message_iter_recurse(value, &array);
 893         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 894
 895         if (ie_len > 0)
 896                 result->has_wps = TRUE;
 897 }
 898
 899 static void extract_capabilites(DBusMessageIter *value,
 900                                         struct supplicant_result *result)
 901 {
 902         dbus_message_iter_get_basic(value, &result->capabilities);
 903
 904         if (result->capabilities & IEEE80211_CAP_ESS)
 905                 result->adhoc = FALSE;
 906         else if (result->capabilities & IEEE80211_CAP_IBSS)
 907                 result->adhoc = TRUE;
 908
 909         if (result->capabilities & IEEE80211_CAP_PRIVACY)
 910                 result->has_wep = TRUE;
 911 }
 912
 913 static void get_properties(struct supplicant_task *task);
 914
 915 static void properties_reply(DBusPendingCall *call, void *user_data)
 916 {
 917         struct supplicant_task *task = user_data;
 918         struct supplicant_result result;
 919         struct connman_network *network;
 920         DBusMessage *reply;
 921         DBusMessageIter array, dict;
 922         const char *mode, *security;
 923         unsigned char strength;
 924
 925         DBG("task %p", task);
 926
 927         reply = dbus_pending_call_steal_reply(call);
 928         if (reply == NULL) {
 929                 get_properties(task);
 930                 return;
 931         }
 932
 933         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 934                 dbus_message_unref(reply);
 935                 get_properties(task);
 936                 return;
 937         }
 938
 939         memset(&result, 0, sizeof(result));
 940
 941         dbus_message_iter_init(reply, &array);
 942
 943         dbus_message_iter_recurse(&array, &dict);
 944
 945         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 946                 DBusMessageIter entry, value;
 947                 const char *key;
 948
 949                 dbus_message_iter_recurse(&dict, &entry);
 950                 dbus_message_iter_get_basic(&entry, &key);
 951
 952                 dbus_message_iter_next(&entry);
 953
 954                 dbus_message_iter_recurse(&entry, &value);
 955
 956                 //type = dbus_message_iter_get_arg_type(&value);
 957                 //dbus_message_iter_get_basic(&value, &val);
 958
 959                 /*
 960                  * bssid        : a (97)
 961                  * ssid         : a (97)
 962                  * wpaie        : a (97)
 963                  * rsnie        : a (97)
 964                  * wpsie        : a (97)
 965                  * frequency    : i (105)
 966                  * capabilities : q (113)
 967                  * quality      : i (105)
 968                  * noise        : i (105)
 969                  * level        : i (105)
 970                  * maxrate      : i (105)
 971                  */
 972
 973                 if (g_str_equal(key, "bssid") == TRUE)
 974                         extract_addr(&value, &result);
 975                 else if (g_str_equal(key, "ssid") == TRUE)
 976                         extract_ssid(&value, &result);
 977                 else if (g_str_equal(key, "wpaie") == TRUE)
 978                         extract_wpaie(&value, &result);
 979                 else if (g_str_equal(key, "rsnie") == TRUE)
 980                         extract_rsnie(&value, &result);
 981                 else if (g_str_equal(key, "wpsie") == TRUE)
 982                         extract_wpsie(&value, &result);
 983                 else if (g_str_equal(key, "capabilities") == TRUE)
 984                         extract_capabilites(&value, &result);
 985                 else if (g_str_equal(key, "quality") == TRUE)
 986                         dbus_message_iter_get_basic(&value, &result.quality);
 987                 else if (g_str_equal(key, "noise") == TRUE)
 988                         dbus_message_iter_get_basic(&value, &result.noise);
 989                 else if (g_str_equal(key, "level") == TRUE)
 990                         dbus_message_iter_get_basic(&value, &result.level);
 991                 else if (g_str_equal(key, "maxrate") == TRUE)
 992                         dbus_message_iter_get_basic(&value, &result.maxrate);
 993
 994                 dbus_message_iter_next(&dict);
 995         }
 996
 997         if (result.path == NULL)
 998                 goto done;
 999
1000         if (result.path[0] == '\0')
1001                 goto done;
1002
1003         strength = result.quality;
1004
1005         if (result.has_rsn == TRUE)
1006                 security = "wpa2";
1007         else if (result.has_wpa == TRUE)
1008                 security = "wpa";
1009         else if (result.has_wep == TRUE)
1010                 security = "wep";
1011         else
1012                 security = "none";
1013
1014         network = connman_device_get_network(task->device, result.path);
1015         if (network == NULL) {
1016                 int index;
1017
1018                 network = connman_network_create(result.path,
1019                                                 CONNMAN_NETWORK_TYPE_WIFI);
1020                 if (network == NULL)
1021                         goto done;
1022
1023                 index = connman_device_get_index(task->device);
1024                 connman_network_set_index(network, index);
1025
1026                 connman_network_set_protocol(network,
1027                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1028
1029                 connman_network_set_string(network, "Address", result.addr);
1030
1031                 if (connman_device_add_network(task->device, network) < 0) {
1032                         connman_network_unref(network);
1033                         goto done;
1034                 }
1035         }
1036
1037         if (result.name != NULL && result.name[0] != '\0')
1038                 connman_network_set_string(network, "Name", result.name);
1039
1040         connman_network_set_blob(network, "WiFi.SSID",
1041                                                 result.ssid, result.ssid_len);
1042
1043         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1044         connman_network_set_string(network, "WiFi.Mode", mode);
1045
1046         DBG("%s (%s %s) strength %d (%s)",
1047                         result.name, mode, security, strength,
1048                         (result.has_wps == TRUE) ? "WPS" : "no WPS");
1049
1050         connman_network_set_available(network, TRUE);
1051         connman_network_set_uint8(network, "Strength", strength);
1052
1053         connman_network_set_string(network, "WiFi.Security", security);
1054
1055 done:
1056         g_free(result.path);
1057         g_free(result.addr);
1058         g_free(result.name);
1059         g_free(result.ssid);
1060
1061         dbus_message_unref(reply);
1062
1063         get_properties(task);
1064 }
1065
1066 static void get_properties(struct supplicant_task *task)
1067 {
1068         DBusMessage *message;
1069         DBusPendingCall *call;
1070         char *path;
1071
1072         path = g_slist_nth_data(task->scan_results, 0);
1073         if (path == NULL)
1074                 goto noscan;
1075
1076         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1077                                                 SUPPLICANT_INTF ".BSSID",
1078                                                                 "properties");
1079
1080         task->scan_results = g_slist_remove(task->scan_results, path);
1081         g_free(path);
1082
1083         if (message == NULL)
1084                 goto noscan;
1085
1086         if (dbus_connection_send_with_reply(connection, message,
1087                                                 &call, TIMEOUT) == FALSE) {
1088                 connman_error("Failed to get network properties");
1089                 dbus_message_unref(message);
1090                 goto noscan;
1091         }
1092
1093         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1094
1095         dbus_message_unref(message);
1096
1097         return;
1098
1099 noscan:
1100         if (task->noscan == FALSE)
1101                 connman_device_set_scanning(task->device, FALSE);
1102 }
1103
1104 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1105 {
1106         struct supplicant_task *task = user_data;
1107         DBusMessage *reply;
1108         DBusError error;
1109         char **results;
1110         int i, num_results;
1111
1112         DBG("task %p", task);
1113
1114         reply = dbus_pending_call_steal_reply(call);
1115         if (reply == NULL)
1116                 goto noscan;
1117
1118         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1119                 goto done;
1120
1121         dbus_error_init(&error);
1122
1123         if (dbus_message_get_args(reply, &error,
1124                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1125                                                 &results, &num_results,
1126                                                 DBUS_TYPE_INVALID) == FALSE) {
1127                 if (dbus_error_is_set(&error) == TRUE) {
1128                         connman_error("%s", error.message);
1129                         dbus_error_free(&error);
1130                 } else
1131                         connman_error("Wrong arguments for scan result");
1132                 goto done;
1133         }
1134
1135         if (num_results == 0)
1136                 goto done;
1137
1138         for (i = 0; i < num_results; i++) {
1139                 char *path = g_strdup(results[i]);
1140                 if (path == NULL)
1141                         continue;
1142
1143                 task->scan_results = g_slist_append(task->scan_results, path);
1144         }
1145
1146         g_strfreev(results);
1147
1148         dbus_message_unref(reply);
1149
1150         get_properties(task);
1151
1152         return;
1153
1154 done:
1155         dbus_message_unref(reply);
1156
1157 noscan:
1158         if (task->noscan == FALSE)
1159                 connman_device_set_scanning(task->device, FALSE);
1160 }
1161
1162 static void scan_results_available(struct supplicant_task *task)
1163 {
1164         DBusMessage *message;
1165         DBusPendingCall *call;
1166
1167         DBG("task %p", task);
1168
1169         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1170                                                 SUPPLICANT_INTF ".Interface",
1171                                                         "scanResults");
1172         if (message == NULL)
1173                 return;
1174
1175         if (dbus_connection_send_with_reply(connection, message,
1176                                                 &call, TIMEOUT) == FALSE) {
1177                 connman_error("Failed to request scan result");
1178                 goto done;
1179         }
1180
1181         if (task->noscan == FALSE)
1182                 connman_device_set_scanning(task->device, TRUE);
1183
1184         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1185
1186 done:
1187         dbus_message_unref(message);
1188 }
1189
1190 static enum supplicant_state string2state(const char *state)
1191 {
1192         if (g_str_equal(state, "INACTIVE") == TRUE)
1193                 return WPA_INACTIVE;
1194         else if (g_str_equal(state, "SCANNING") == TRUE)
1195                 return WPA_SCANNING;
1196         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1197                 return WPA_ASSOCIATING;
1198         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1199                 return WPA_ASSOCIATED;
1200         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1201                 return WPA_GROUP_HANDSHAKE;
1202         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1203                 return WPA_4WAY_HANDSHAKE;
1204         else if (g_str_equal(state, "COMPLETED") == TRUE)
1205                 return WPA_COMPLETED;
1206         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1207                 return WPA_DISCONNECTED;
1208         else
1209                 return WPA_INVALID;
1210 }
1211
1212 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1213 {
1214         DBusError error;
1215         const char *newstate, *oldstate;
1216         enum supplicant_state state;
1217
1218         dbus_error_init(&error);
1219
1220         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1221                                                 DBUS_TYPE_STRING, &oldstate,
1222                                                 DBUS_TYPE_INVALID) == FALSE) {
1223                 if (dbus_error_is_set(&error) == TRUE) {
1224                         connman_error("%s", error.message);
1225                         dbus_error_free(&error);
1226                 } else
1227                         connman_error("Wrong arguments for state change");
1228                 return;
1229         }
1230
1231         DBG("state %s ==> %s", oldstate, newstate);
1232
1233         state = string2state(newstate);
1234         if (state == WPA_INVALID)
1235                 return;
1236
1237         task->state = state;
1238
1239         switch (task->state) {
1240         case WPA_SCANNING:
1241                 task->noscan = TRUE;
1242                 connman_device_set_scanning(task->device, TRUE);
1243                 break;
1244         case WPA_ASSOCIATING:
1245         case WPA_ASSOCIATED:
1246         case WPA_4WAY_HANDSHAKE:
1247         case WPA_GROUP_HANDSHAKE:
1248                 task->noscan = TRUE;
1249                 break;
1250         case WPA_COMPLETED:
1251         case WPA_DISCONNECTED:
1252                 task->noscan = FALSE;
1253                 break;
1254         case WPA_INACTIVE:
1255                 task->noscan = FALSE;
1256                 connman_device_set_scanning(task->device, FALSE);
1257                 break;
1258         case WPA_INVALID:
1259                 break;
1260         }
1261
1262         if (task->network == NULL)
1263                 return;
1264
1265         switch (task->state) {
1266         case WPA_COMPLETED:
1267                 /* carrier on */
1268                 connman_network_set_connected(task->network, TRUE);
1269                 connman_device_set_scanning(task->device, FALSE);
1270                 break;
1271         case WPA_DISCONNECTED:
1272                 /* carrier off */
1273                 connman_network_set_connected(task->network, FALSE);
1274                 connman_device_set_scanning(task->device, FALSE);
1275                 break;
1276         default:
1277                 break;
1278         }
1279 }
1280
1281 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1282                                                 DBusMessage *msg, void *data)
1283 {
1284         struct supplicant_task *task;
1285         const char *member, *path;
1286
1287         if (dbus_message_has_interface(msg,
1288                                 SUPPLICANT_INTF ".Interface") == FALSE)
1289                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1290
1291         member = dbus_message_get_member(msg);
1292         if (member == NULL)
1293                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1294
1295         path = dbus_message_get_path(msg);
1296         if (path == NULL)
1297                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1298
1299         task = find_task_by_path(path);
1300         if (task == NULL)
1301                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1302
1303         DBG("task %p member %s", task, member);
1304
1305         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1306                 scan_results_available(task);
1307         else if (g_str_equal(member, "StateChange") == TRUE)
1308                 state_change(task, msg);
1309
1310         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1311 }
1312
1313 int supplicant_start(struct connman_device *device)
1314 {
1315         struct supplicant_task *task;
1316
1317         DBG("device %p", device);
1318
1319         task = g_try_new0(struct supplicant_task, 1);
1320         if (task == NULL)
1321                 return -ENOMEM;
1322
1323         task->ifindex = connman_device_get_index(device);
1324         task->ifname = inet_index2name(task->ifindex);
1325
1326         if (task->ifname == NULL) {
1327                 g_free(task);
1328                 return -ENOMEM;
1329         }
1330
1331         task->device = connman_device_ref(device);
1332
1333         task->created = FALSE;
1334         task->noscan = FALSE;
1335         task->state = WPA_INVALID;
1336
1337         task_list = g_slist_append(task_list, task);
1338
1339         return create_interface(task);
1340 }
1341
1342 int supplicant_stop(struct connman_device *device)
1343 {
1344         int index = connman_device_get_index(device);
1345         struct supplicant_task *task;
1346
1347         DBG("device %p", device);
1348
1349         task = find_task_by_index(index);
1350         if (task == NULL)
1351                 return -ENODEV;
1352
1353         task_list = g_slist_remove(task_list, task);
1354
1355         disable_network(task);
1356
1357         remove_network(task);
1358
1359         return remove_interface(task);
1360 }
1361
1362 int supplicant_scan(struct connman_device *device)
1363 {
1364         int index = connman_device_get_index(device);
1365         struct supplicant_task *task;
1366         int err;
1367
1368         DBG("device %p", device);
1369
1370         task = find_task_by_index(index);
1371         if (task == NULL)
1372                 return -ENODEV;
1373
1374         switch (task->state) {
1375         case WPA_SCANNING:
1376                 return -EALREADY;
1377         case WPA_ASSOCIATING:
1378         case WPA_ASSOCIATED:
1379         case WPA_4WAY_HANDSHAKE:
1380         case WPA_GROUP_HANDSHAKE:
1381                 return -EBUSY;
1382         default:
1383                 break;
1384         }
1385
1386         err = initiate_scan(task);
1387
1388         return 0;
1389 }
1390
1391 int supplicant_connect(struct connman_network *network)
1392 {
1393         struct supplicant_task *task;
1394         const char *address, *security, *passphrase;
1395         const void *ssid;
1396         unsigned int ssid_len;
1397         int index;
1398
1399         DBG("network %p", network);
1400
1401         address = connman_network_get_string(network, "Address");
1402         security = connman_network_get_string(network, "WiFi.Security");
1403         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1404
1405         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1406
1407         DBG("address %s security %s passphrase %s",
1408                                         address, security, passphrase);
1409
1410         if (security == NULL && passphrase == NULL)
1411                 return -EINVAL;
1412
1413         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1414                 return -EINVAL;
1415
1416         index = connman_network_get_index(network);
1417
1418         task = find_task_by_index(index);
1419         if (task == NULL)
1420                 return -ENODEV;
1421
1422         task->network = connman_network_ref(network);
1423
1424         add_network(task);
1425
1426         select_network(task);
1427         disable_network(task);
1428
1429         set_network(task, ssid, ssid_len, address, security, passphrase);
1430
1431         enable_network(task);
1432
1433         return 0;
1434 }
1435
1436 int supplicant_disconnect(struct connman_network *network)
1437 {
1438         struct supplicant_task *task;
1439         int index;
1440
1441         DBG("network %p", network);
1442
1443         index = connman_network_get_index(network);
1444
1445         task = find_task_by_index(index);
1446         if (task == NULL)
1447                 return -ENODEV;
1448
1449         disable_network(task);
1450
1451         remove_network(task);
1452
1453         connman_network_set_connected(task->network, FALSE);
1454
1455         connman_network_unref(task->network);
1456
1457         return 0;
1458 }
1459
1460 static void supplicant_activate(DBusConnection *conn)
1461 {
1462         DBusMessage *message;
1463
1464         DBG("conn %p", conn);
1465
1466         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1467                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1468         if (message == NULL)
1469                 return;
1470
1471         dbus_message_set_no_reply(message, TRUE);
1472
1473         dbus_connection_send(conn, message, NULL);
1474
1475         dbus_message_unref(message);
1476 }
1477
1478 static GSList *driver_list = NULL;
1479
1480 static void supplicant_probe(DBusConnection *conn, void *user_data)
1481 {
1482         GSList *list;
1483
1484         DBG("conn %p", conn);
1485
1486         for (list = driver_list; list; list = list->next) {
1487                 struct supplicant_driver *driver = list->data;
1488
1489                 DBG("driver %p name %s", driver, driver->name);
1490
1491                 if (driver->probe)
1492                         driver->probe();
1493         }
1494 }
1495
1496 static void supplicant_remove(DBusConnection *conn, void *user_data)
1497 {
1498         GSList *list;
1499
1500         DBG("conn %p", conn);
1501
1502         for (list = driver_list; list; list = list->next) {
1503                 struct supplicant_driver *driver = list->data;
1504
1505                 DBG("driver %p name %s", driver, driver->name);
1506
1507                 if (driver->remove)
1508                         driver->remove();
1509         }
1510 }
1511
1512 static const char *supplicant_rule = "type=signal,"
1513                                 "interface=" SUPPLICANT_INTF ".Interface";
1514 static guint watch;
1515
1516 static int supplicant_create(void)
1517 {
1518         if (g_slist_length(driver_list) > 0)
1519                 return 0;
1520
1521         connection = connman_dbus_get_connection();
1522         if (connection == NULL)
1523                 return -EIO;
1524
1525         DBG("connection %p", connection);
1526
1527         if (dbus_connection_add_filter(connection,
1528                                 supplicant_filter, NULL, NULL) == FALSE) {
1529                 connection = connman_dbus_get_connection();
1530                 return -EIO;
1531         }
1532
1533         dbus_bus_add_match(connection, supplicant_rule, NULL);
1534         dbus_connection_flush(connection);
1535
1536         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1537                         supplicant_probe, supplicant_remove, NULL, NULL);
1538
1539         return 0;
1540 }
1541
1542 static void supplicant_destroy(void)
1543 {
1544         if (g_slist_length(driver_list) > 0)
1545                 return;
1546
1547         DBG("connection %p", connection);
1548
1549         if (watch > 0)
1550                 g_dbus_remove_watch(connection, watch);
1551
1552         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1553         dbus_connection_flush(connection);
1554
1555         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1556
1557         dbus_connection_unref(connection);
1558         connection = NULL;
1559 }
1560
1561 int supplicant_register(struct supplicant_driver *driver)
1562 {
1563         int err;
1564
1565         DBG("driver %p name %s", driver, driver->name);
1566
1567         err = supplicant_create();
1568         if (err < 0)
1569                 return err;
1570
1571         driver_list = g_slist_append(driver_list, driver);
1572
1573         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1574                 supplicant_probe(connection, NULL);
1575         else
1576                 supplicant_activate(connection);
1577
1578         return 0;
1579 }
1580
1581 void supplicant_unregister(struct supplicant_driver *driver)
1582 {
1583         DBG("driver %p name %s", driver, driver->name);
1584
1585         supplicant_remove(connection, NULL);
1586
1587         driver_list = g_slist_remove(driver_list, driver);
1588
1589         supplicant_destroy();
1590 }