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 (len > 0) {
 684                 if (address == NULL) {
 685                         dbus_uint32_t scan_ssid = 1;
 686                         connman_dbus_dict_append_variant(&dict, "scan_ssid",
 687                                                 DBUS_TYPE_UINT32, &scan_ssid);
 688                 }
 689
 690                 connman_dbus_dict_append_array(&dict, "ssid",
 691                                         DBUS_TYPE_BYTE, &network, len);
 692         }
 693
 694         if (address != NULL)
 695                 connman_dbus_dict_append_variant(&dict, "bssid",
 696                                                 DBUS_TYPE_STRING, &address);
 697
 698         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 699                                 g_ascii_strcasecmp(security, "wpa2") == 0) {
 700                 const char *key_mgmt = "WPA-PSK";
 701                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 702                                                 DBUS_TYPE_STRING, &key_mgmt);
 703
 704                 if (passphrase && strlen(passphrase) > 0)
 705                         connman_dbus_dict_append_variant(&dict, "psk",
 706                                                 DBUS_TYPE_STRING, &passphrase);
 707         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 708                 const char *key_mgmt = "NONE", *index = "0";
 709                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 710                                                 DBUS_TYPE_STRING, &key_mgmt);
 711
 712                 if (passphrase) {
 713                         int size = strlen(passphrase);
 714                         if (size == 10 || size == 26) {
 715                                 unsigned char *key = malloc(13);
 716                                 char tmp[3];
 717                                 int i;
 718                                 memset(tmp, 0, sizeof(tmp));
 719                                 if (key == NULL)
 720                                         size = 0;
 721                                 for (i = 0; i < size / 2; i++) {
 722                                         memcpy(tmp, passphrase + (i * 2), 2);
 723                                         key[i] = (unsigned char) strtol(tmp,
 724                                                                 NULL, 16);
 725                                 }
 726                                 connman_dbus_dict_append_array(&dict,
 727                                                 "wep_key0", DBUS_TYPE_BYTE,
 728                                                         &key, size / 2);
 729                                 free(key);
 730                         } else
 731                                 connman_dbus_dict_append_variant(&dict,
 732                                                 "wep_key0", DBUS_TYPE_STRING,
 733                                                                 &passphrase);
 734                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 735                                                 DBUS_TYPE_STRING, &index);
 736                 }
 737         } else {
 738                 const char *key_mgmt = "NONE";
 739                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 740                                                 DBUS_TYPE_STRING, &key_mgmt);
 741         }
 742
 743         dbus_message_iter_close_container(&array, &dict);
 744
 745         dbus_error_init(&error);
 746
 747         reply = dbus_connection_send_with_reply_and_block(connection,
 748                                                         message, -1, &error);
 749         if (reply == NULL) {
 750                 if (dbus_error_is_set(&error) == TRUE) {
 751                         connman_error("%s", error.message);
 752                         dbus_error_free(&error);
 753                 } else
 754                         connman_error("Failed to set network options");
 755                 dbus_message_unref(message);
 756                 return -EIO;
 757         }
 758
 759         dbus_message_unref(message);
 760
 761         dbus_message_unref(reply);
 762
 763         return 0;
 764 }
 765
 766 static int initiate_scan(struct supplicant_task *task)
 767 {
 768         DBusMessage *message;
 769         DBusPendingCall *call;
 770
 771         DBG("task %p", task);
 772
 773         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 774                                         SUPPLICANT_INTF ".Interface", "scan");
 775         if (message == NULL)
 776                 return -ENOMEM;
 777
 778         if (dbus_connection_send_with_reply(connection, message,
 779                                                 &call, TIMEOUT) == FALSE) {
 780                 connman_error("Failed to initiate scan");
 781                 dbus_message_unref(message);
 782                 return -EIO;
 783         }
 784
 785         dbus_message_unref(message);
 786
 787         return 0;
 788 }
 789
 790 static void extract_addr(DBusMessageIter *value,
 791                                         struct supplicant_result *result)
 792 {
 793         DBusMessageIter array;
 794         struct ether_addr *eth;
 795         unsigned char *addr;
 796         int addr_len;
 797
 798         dbus_message_iter_recurse(value, &array);
 799         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 800
 801         if (addr_len != 6)
 802                 return;
 803
 804         eth = (void *) addr;
 805
 806         result->addr = g_try_malloc0(18);
 807         if (result->addr == NULL)
 808                 return;
 809
 810         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 811                                                 eth->ether_addr_octet[0],
 812                                                 eth->ether_addr_octet[1],
 813                                                 eth->ether_addr_octet[2],
 814                                                 eth->ether_addr_octet[3],
 815                                                 eth->ether_addr_octet[4],
 816                                                 eth->ether_addr_octet[5]);
 817
 818         result->path = g_try_malloc0(18);
 819         if (result->path == NULL)
 820                 return;
 821
 822         snprintf(result->path, 18, "%02X_%02X_%02X_%02X_%02X_%02X",
 823                                                 eth->ether_addr_octet[0],
 824                                                 eth->ether_addr_octet[1],
 825                                                 eth->ether_addr_octet[2],
 826                                                 eth->ether_addr_octet[3],
 827                                                 eth->ether_addr_octet[4],
 828                                                 eth->ether_addr_octet[5]);
 829 }
 830
 831 static void extract_ssid(DBusMessageIter *value,
 832                                         struct supplicant_result *result)
 833 {
 834         DBusMessageIter array;
 835         unsigned char *ssid;
 836         int ssid_len;
 837
 838         dbus_message_iter_recurse(value, &array);
 839         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 840
 841         if (ssid_len < 1)
 842                 return;
 843
 844         if (ssid[0] == '\0')
 845                 return;
 846
 847         result->ssid = g_try_malloc(ssid_len);
 848         if (result->ssid == NULL)
 849                 return;
 850
 851         memcpy(result->ssid, ssid, ssid_len);
 852         result->ssid_len = ssid_len;
 853
 854         result->name = g_try_malloc0(ssid_len + 1);
 855         if (result->name == NULL)
 856                 return;
 857
 858         memcpy(result->name, ssid, ssid_len);
 859 }
 860
 861 static void extract_wpaie(DBusMessageIter *value,
 862                                         struct supplicant_result *result)
 863 {
 864         DBusMessageIter array;
 865         unsigned char *ie;
 866         int ie_len;
 867
 868         dbus_message_iter_recurse(value, &array);
 869         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 870
 871         if (ie_len > 0)
 872                 result->has_wpa = TRUE;
 873 }
 874
 875 static void extract_rsnie(DBusMessageIter *value,
 876                                         struct supplicant_result *result)
 877 {
 878         DBusMessageIter array;
 879         unsigned char *ie;
 880         int ie_len;
 881
 882         dbus_message_iter_recurse(value, &array);
 883         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 884
 885         if (ie_len > 0)
 886                 result->has_rsn = TRUE;
 887 }
 888
 889 static void extract_wpsie(DBusMessageIter *value,
 890                                         struct supplicant_result *result)
 891 {
 892         DBusMessageIter array;
 893         unsigned char *ie;
 894         int ie_len;
 895
 896         dbus_message_iter_recurse(value, &array);
 897         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 898
 899         if (ie_len > 0)
 900                 result->has_wps = TRUE;
 901 }
 902
 903 static void extract_capabilites(DBusMessageIter *value,
 904                                         struct supplicant_result *result)
 905 {
 906         dbus_message_iter_get_basic(value, &result->capabilities);
 907
 908         if (result->capabilities & IEEE80211_CAP_ESS)
 909                 result->adhoc = FALSE;
 910         else if (result->capabilities & IEEE80211_CAP_IBSS)
 911                 result->adhoc = TRUE;
 912
 913         if (result->capabilities & IEEE80211_CAP_PRIVACY)
 914                 result->has_wep = TRUE;
 915 }
 916
 917 static void get_properties(struct supplicant_task *task);
 918
 919 static void properties_reply(DBusPendingCall *call, void *user_data)
 920 {
 921         struct supplicant_task *task = user_data;
 922         struct supplicant_result result;
 923         struct connman_network *network;
 924         DBusMessage *reply;
 925         DBusMessageIter array, dict;
 926         const char *mode, *security;
 927         unsigned char strength;
 928
 929         DBG("task %p", task);
 930
 931         reply = dbus_pending_call_steal_reply(call);
 932         if (reply == NULL) {
 933                 get_properties(task);
 934                 return;
 935         }
 936
 937         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 938                 dbus_message_unref(reply);
 939                 get_properties(task);
 940                 return;
 941         }
 942
 943         memset(&result, 0, sizeof(result));
 944
 945         dbus_message_iter_init(reply, &array);
 946
 947         dbus_message_iter_recurse(&array, &dict);
 948
 949         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 950                 DBusMessageIter entry, value;
 951                 const char *key;
 952
 953                 dbus_message_iter_recurse(&dict, &entry);
 954                 dbus_message_iter_get_basic(&entry, &key);
 955
 956                 dbus_message_iter_next(&entry);
 957
 958                 dbus_message_iter_recurse(&entry, &value);
 959
 960                 //type = dbus_message_iter_get_arg_type(&value);
 961                 //dbus_message_iter_get_basic(&value, &val);
 962
 963                 /*
 964                  * bssid        : a (97)
 965                  * ssid         : a (97)
 966                  * wpaie        : a (97)
 967                  * rsnie        : a (97)
 968                  * wpsie        : a (97)
 969                  * frequency    : i (105)
 970                  * capabilities : q (113)
 971                  * quality      : i (105)
 972                  * noise        : i (105)
 973                  * level        : i (105)
 974                  * maxrate      : i (105)
 975                  */
 976
 977                 if (g_str_equal(key, "bssid") == TRUE)
 978                         extract_addr(&value, &result);
 979                 else if (g_str_equal(key, "ssid") == TRUE)
 980                         extract_ssid(&value, &result);
 981                 else if (g_str_equal(key, "wpaie") == TRUE)
 982                         extract_wpaie(&value, &result);
 983                 else if (g_str_equal(key, "rsnie") == TRUE)
 984                         extract_rsnie(&value, &result);
 985                 else if (g_str_equal(key, "wpsie") == TRUE)
 986                         extract_wpsie(&value, &result);
 987                 else if (g_str_equal(key, "capabilities") == TRUE)
 988                         extract_capabilites(&value, &result);
 989                 else if (g_str_equal(key, "quality") == TRUE)
 990                         dbus_message_iter_get_basic(&value, &result.quality);
 991                 else if (g_str_equal(key, "noise") == TRUE)
 992                         dbus_message_iter_get_basic(&value, &result.noise);
 993                 else if (g_str_equal(key, "level") == TRUE)
 994                         dbus_message_iter_get_basic(&value, &result.level);
 995                 else if (g_str_equal(key, "maxrate") == TRUE)
 996                         dbus_message_iter_get_basic(&value, &result.maxrate);
 997
 998                 dbus_message_iter_next(&dict);
 999         }
1000
1001         if (result.path == NULL)
1002                 goto done;
1003
1004         if (result.path[0] == '\0')
1005                 goto done;
1006
1007         strength = result.quality;
1008
1009         if (result.has_rsn == TRUE)
1010                 security = "wpa2";
1011         else if (result.has_wpa == TRUE)
1012                 security = "wpa";
1013         else if (result.has_wep == TRUE)
1014                 security = "wep";
1015         else
1016                 security = "none";
1017
1018         network = connman_device_get_network(task->device, result.path);
1019         if (network == NULL) {
1020                 int index;
1021
1022                 network = connman_network_create(result.path,
1023                                                 CONNMAN_NETWORK_TYPE_WIFI);
1024                 if (network == NULL)
1025                         goto done;
1026
1027                 index = connman_device_get_index(task->device);
1028                 connman_network_set_index(network, index);
1029
1030                 connman_network_set_protocol(network,
1031                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1032
1033                 connman_network_set_string(network, "Address", result.addr);
1034
1035                 if (connman_device_add_network(task->device, network) < 0) {
1036                         connman_network_unref(network);
1037                         goto done;
1038                 }
1039         }
1040
1041         connman_network_set_string(network, "Name", result.name);
1042
1043         connman_network_set_blob(network, "WiFi.SSID",
1044                                                 result.ssid, result.ssid_len);
1045
1046         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1047         connman_network_set_string(network, "WiFi.Mode", mode);
1048
1049         DBG("%s (%s %s) strength %d (%s)",
1050                         result.name, mode, security, strength,
1051                         (result.has_wps == TRUE) ? "WPS" : "no WPS");
1052
1053         connman_network_set_available(network, TRUE);
1054         connman_network_set_uint8(network, "Strength", strength);
1055
1056         connman_network_set_string(network, "WiFi.Security", security);
1057
1058 done:
1059         g_free(result.path);
1060         g_free(result.addr);
1061         g_free(result.name);
1062         g_free(result.ssid);
1063
1064         dbus_message_unref(reply);
1065
1066         get_properties(task);
1067 }
1068
1069 static void get_properties(struct supplicant_task *task)
1070 {
1071         DBusMessage *message;
1072         DBusPendingCall *call;
1073         char *path;
1074
1075         path = g_slist_nth_data(task->scan_results, 0);
1076         if (path == NULL)
1077                 goto noscan;
1078
1079         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1080                                                 SUPPLICANT_INTF ".BSSID",
1081                                                                 "properties");
1082
1083         task->scan_results = g_slist_remove(task->scan_results, path);
1084         g_free(path);
1085
1086         if (message == NULL)
1087                 goto noscan;
1088
1089         if (dbus_connection_send_with_reply(connection, message,
1090                                                 &call, TIMEOUT) == FALSE) {
1091                 connman_error("Failed to get network properties");
1092                 dbus_message_unref(message);
1093                 goto noscan;
1094         }
1095
1096         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1097
1098         dbus_message_unref(message);
1099
1100         return;
1101
1102 noscan:
1103         if (task->noscan == FALSE)
1104                 connman_device_set_scanning(task->device, FALSE);
1105 }
1106
1107 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1108 {
1109         struct supplicant_task *task = user_data;
1110         DBusMessage *reply;
1111         DBusError error;
1112         char **results;
1113         int i, num_results;
1114
1115         DBG("task %p", task);
1116
1117         reply = dbus_pending_call_steal_reply(call);
1118         if (reply == NULL)
1119                 goto noscan;
1120
1121         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1122                 goto done;
1123
1124         dbus_error_init(&error);
1125
1126         if (dbus_message_get_args(reply, &error,
1127                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1128                                                 &results, &num_results,
1129                                                 DBUS_TYPE_INVALID) == FALSE) {
1130                 if (dbus_error_is_set(&error) == TRUE) {
1131                         connman_error("%s", error.message);
1132                         dbus_error_free(&error);
1133                 } else
1134                         connman_error("Wrong arguments for scan result");
1135                 goto done;
1136         }
1137
1138         if (num_results == 0)
1139                 goto done;
1140
1141         for (i = 0; i < num_results; i++) {
1142                 char *path = g_strdup(results[i]);
1143                 if (path == NULL)
1144                         continue;
1145
1146                 task->scan_results = g_slist_append(task->scan_results, path);
1147         }
1148
1149         g_strfreev(results);
1150
1151         dbus_message_unref(reply);
1152
1153         get_properties(task);
1154
1155         return;
1156
1157 done:
1158         dbus_message_unref(reply);
1159
1160 noscan:
1161         if (task->noscan == FALSE)
1162                 connman_device_set_scanning(task->device, FALSE);
1163 }
1164
1165 static void scan_results_available(struct supplicant_task *task)
1166 {
1167         DBusMessage *message;
1168         DBusPendingCall *call;
1169
1170         DBG("task %p", task);
1171
1172         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1173                                                 SUPPLICANT_INTF ".Interface",
1174                                                         "scanResults");
1175         if (message == NULL)
1176                 return;
1177
1178         if (dbus_connection_send_with_reply(connection, message,
1179                                                 &call, TIMEOUT) == FALSE) {
1180                 connman_error("Failed to request scan result");
1181                 goto done;
1182         }
1183
1184         if (task->noscan == FALSE)
1185                 connman_device_set_scanning(task->device, TRUE);
1186
1187         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1188
1189 done:
1190         dbus_message_unref(message);
1191 }
1192
1193 static enum supplicant_state string2state(const char *state)
1194 {
1195         if (g_str_equal(state, "INACTIVE") == TRUE)
1196                 return WPA_INACTIVE;
1197         else if (g_str_equal(state, "SCANNING") == TRUE)
1198                 return WPA_SCANNING;
1199         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1200                 return WPA_ASSOCIATING;
1201         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1202                 return WPA_ASSOCIATED;
1203         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1204                 return WPA_GROUP_HANDSHAKE;
1205         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1206                 return WPA_4WAY_HANDSHAKE;
1207         else if (g_str_equal(state, "COMPLETED") == TRUE)
1208                 return WPA_COMPLETED;
1209         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1210                 return WPA_DISCONNECTED;
1211         else
1212                 return WPA_INVALID;
1213 }
1214
1215 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1216 {
1217         DBusError error;
1218         const char *newstate, *oldstate;
1219         enum supplicant_state state;
1220
1221         dbus_error_init(&error);
1222
1223         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1224                                                 DBUS_TYPE_STRING, &oldstate,
1225                                                 DBUS_TYPE_INVALID) == FALSE) {
1226                 if (dbus_error_is_set(&error) == TRUE) {
1227                         connman_error("%s", error.message);
1228                         dbus_error_free(&error);
1229                 } else
1230                         connman_error("Wrong arguments for state change");
1231                 return;
1232         }
1233
1234         DBG("state %s ==> %s", oldstate, newstate);
1235
1236         state = string2state(newstate);
1237         if (state == WPA_INVALID)
1238                 return;
1239
1240         task->state = state;
1241
1242         switch (task->state) {
1243         case WPA_SCANNING:
1244                 task->noscan = TRUE;
1245                 connman_device_set_scanning(task->device, TRUE);
1246                 break;
1247         case WPA_ASSOCIATING:
1248         case WPA_ASSOCIATED:
1249         case WPA_4WAY_HANDSHAKE:
1250         case WPA_GROUP_HANDSHAKE:
1251                 task->noscan = TRUE;
1252                 break;
1253         case WPA_COMPLETED:
1254         case WPA_DISCONNECTED:
1255                 task->noscan = FALSE;
1256                 break;
1257         case WPA_INACTIVE:
1258                 task->noscan = FALSE;
1259                 connman_device_set_scanning(task->device, FALSE);
1260                 break;
1261         case WPA_INVALID:
1262                 break;
1263         }
1264
1265         if (task->network == NULL)
1266                 return;
1267
1268         switch (task->state) {
1269         case WPA_COMPLETED:
1270                 /* carrier on */
1271                 connman_network_set_connected(task->network, TRUE);
1272                 connman_device_set_scanning(task->device, FALSE);
1273                 break;
1274         case WPA_DISCONNECTED:
1275                 /* carrier off */
1276                 connman_network_set_connected(task->network, FALSE);
1277                 connman_device_set_scanning(task->device, FALSE);
1278                 break;
1279         default:
1280                 break;
1281         }
1282 }
1283
1284 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1285                                                 DBusMessage *msg, void *data)
1286 {
1287         struct supplicant_task *task;
1288         const char *member, *path;
1289
1290         if (dbus_message_has_interface(msg,
1291                                 SUPPLICANT_INTF ".Interface") == FALSE)
1292                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1293
1294         member = dbus_message_get_member(msg);
1295         if (member == NULL)
1296                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1297
1298         path = dbus_message_get_path(msg);
1299         if (path == NULL)
1300                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1301
1302         task = find_task_by_path(path);
1303         if (task == NULL)
1304                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1305
1306         DBG("task %p member %s", task, member);
1307
1308         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1309                 scan_results_available(task);
1310         else if (g_str_equal(member, "StateChange") == TRUE)
1311                 state_change(task, msg);
1312
1313         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1314 }
1315
1316 int supplicant_start(struct connman_device *device)
1317 {
1318         struct supplicant_task *task;
1319
1320         DBG("device %p", device);
1321
1322         task = g_try_new0(struct supplicant_task, 1);
1323         if (task == NULL)
1324                 return -ENOMEM;
1325
1326         task->ifindex = connman_device_get_index(device);
1327         task->ifname = inet_index2name(task->ifindex);
1328
1329         if (task->ifname == NULL) {
1330                 g_free(task);
1331                 return -ENOMEM;
1332         }
1333
1334         task->device = connman_device_ref(device);
1335
1336         task->created = FALSE;
1337         task->noscan = FALSE;
1338         task->state = WPA_INVALID;
1339
1340         task_list = g_slist_append(task_list, task);
1341
1342         return create_interface(task);
1343 }
1344
1345 int supplicant_stop(struct connman_device *device)
1346 {
1347         int index = connman_device_get_index(device);
1348         struct supplicant_task *task;
1349
1350         DBG("device %p", device);
1351
1352         task = find_task_by_index(index);
1353         if (task == NULL)
1354                 return -ENODEV;
1355
1356         task_list = g_slist_remove(task_list, task);
1357
1358         disable_network(task);
1359
1360         remove_network(task);
1361
1362         return remove_interface(task);
1363 }
1364
1365 int supplicant_scan(struct connman_device *device)
1366 {
1367         int index = connman_device_get_index(device);
1368         struct supplicant_task *task;
1369         int err;
1370
1371         DBG("device %p", device);
1372
1373         task = find_task_by_index(index);
1374         if (task == NULL)
1375                 return -ENODEV;
1376
1377         switch (task->state) {
1378         case WPA_SCANNING:
1379                 return -EALREADY;
1380         case WPA_ASSOCIATING:
1381         case WPA_ASSOCIATED:
1382         case WPA_4WAY_HANDSHAKE:
1383         case WPA_GROUP_HANDSHAKE:
1384                 return -EBUSY;
1385         default:
1386                 break;
1387         }
1388
1389         err = initiate_scan(task);
1390
1391         return 0;
1392 }
1393
1394 int supplicant_connect(struct connman_network *network)
1395 {
1396         struct supplicant_task *task;
1397         const char *address, *security, *passphrase;
1398         const void *ssid;
1399         unsigned int ssid_len;
1400         int index;
1401
1402         DBG("network %p", network);
1403
1404         address = connman_network_get_string(network, "Address");
1405         security = connman_network_get_string(network, "WiFi.Security");
1406         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1407
1408         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1409
1410         DBG("address %s security %s passphrase %s",
1411                                         address, security, passphrase);
1412
1413         if (security == NULL && passphrase == NULL)
1414                 return -EINVAL;
1415
1416         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1417                 return -EINVAL;
1418
1419         index = connman_network_get_index(network);
1420
1421         task = find_task_by_index(index);
1422         if (task == NULL)
1423                 return -ENODEV;
1424
1425         task->network = connman_network_ref(network);
1426
1427         add_network(task);
1428
1429         select_network(task);
1430         disable_network(task);
1431
1432         set_network(task, ssid, ssid_len, address, security, passphrase);
1433
1434         enable_network(task);
1435
1436         return 0;
1437 }
1438
1439 int supplicant_disconnect(struct connman_network *network)
1440 {
1441         struct supplicant_task *task;
1442         int index;
1443
1444         DBG("network %p", network);
1445
1446         index = connman_network_get_index(network);
1447
1448         task = find_task_by_index(index);
1449         if (task == NULL)
1450                 return -ENODEV;
1451
1452         disable_network(task);
1453
1454         remove_network(task);
1455
1456         connman_network_set_connected(task->network, FALSE);
1457
1458         connman_network_unref(task->network);
1459
1460         return 0;
1461 }
1462
1463 static void supplicant_activate(DBusConnection *conn)
1464 {
1465         DBusMessage *message;
1466
1467         DBG("conn %p", conn);
1468
1469         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1470                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1471         if (message == NULL)
1472                 return;
1473
1474         dbus_message_set_no_reply(message, TRUE);
1475
1476         dbus_connection_send(conn, message, NULL);
1477
1478         dbus_message_unref(message);
1479 }
1480
1481 static GSList *driver_list = NULL;
1482
1483 static void supplicant_probe(DBusConnection *conn, void *user_data)
1484 {
1485         GSList *list;
1486
1487         DBG("conn %p", conn);
1488
1489         for (list = driver_list; list; list = list->next) {
1490                 struct supplicant_driver *driver = list->data;
1491
1492                 DBG("driver %p name %s", driver, driver->name);
1493
1494                 if (driver->probe)
1495                         driver->probe();
1496         }
1497 }
1498
1499 static void supplicant_remove(DBusConnection *conn, void *user_data)
1500 {
1501         GSList *list;
1502
1503         DBG("conn %p", conn);
1504
1505         for (list = driver_list; list; list = list->next) {
1506                 struct supplicant_driver *driver = list->data;
1507
1508                 DBG("driver %p name %s", driver, driver->name);
1509
1510                 if (driver->remove)
1511                         driver->remove();
1512         }
1513 }
1514
1515 static const char *supplicant_rule = "type=signal,"
1516                                 "interface=" SUPPLICANT_INTF ".Interface";
1517 static guint watch;
1518
1519 static int supplicant_create(void)
1520 {
1521         if (g_slist_length(driver_list) > 0)
1522                 return 0;
1523
1524         connection = connman_dbus_get_connection();
1525         if (connection == NULL)
1526                 return -EIO;
1527
1528         DBG("connection %p", connection);
1529
1530         if (dbus_connection_add_filter(connection,
1531                                 supplicant_filter, NULL, NULL) == FALSE) {
1532                 connection = connman_dbus_get_connection();
1533                 return -EIO;
1534         }
1535
1536         dbus_bus_add_match(connection, supplicant_rule, NULL);
1537         dbus_connection_flush(connection);
1538
1539         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1540                         supplicant_probe, supplicant_remove, NULL, NULL);
1541
1542         return 0;
1543 }
1544
1545 static void supplicant_destroy(void)
1546 {
1547         if (g_slist_length(driver_list) > 0)
1548                 return;
1549
1550         DBG("connection %p", connection);
1551
1552         if (watch > 0)
1553                 g_dbus_remove_watch(connection, watch);
1554
1555         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1556         dbus_connection_flush(connection);
1557
1558         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1559
1560         dbus_connection_unref(connection);
1561         connection = NULL;
1562 }
1563
1564 int supplicant_register(struct supplicant_driver *driver)
1565 {
1566         int err;
1567
1568         DBG("driver %p name %s", driver, driver->name);
1569
1570         err = supplicant_create();
1571         if (err < 0)
1572                 return err;
1573
1574         driver_list = g_slist_append(driver_list, driver);
1575
1576         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1577                 supplicant_probe(connection, NULL);
1578         else
1579                 supplicant_activate(connection);
1580
1581         return 0;
1582 }
1583
1584 void supplicant_unregister(struct supplicant_driver *driver)
1585 {
1586         DBG("driver %p name %s", driver, driver->name);
1587
1588         supplicant_remove(connection, NULL);
1589
1590         driver_list = g_slist_remove(driver_list, driver);
1591
1592         supplicant_destroy();
1593 }