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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <net/ethernet.h>
  31
  32 #include <gdbus.h>
  33
  34 #define CONNMAN_API_SUBJECT_TO_CHANGE
  35 #include <connman/device.h>
  36 #include <connman/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 *security, const char *passphrase)
 660 {
 661         DBusMessage *message, *reply;
 662         DBusMessageIter array, dict;
 663         DBusError error;
 664
 665         DBG("task %p", task);
 666
 667         if (task->netpath == NULL)
 668                 return -EINVAL;
 669
 670         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 671                                         SUPPLICANT_INTF ".Network", "set");
 672         if (message == NULL)
 673                 return -ENOMEM;
 674
 675         dbus_message_iter_init_append(message, &array);
 676
 677         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 678                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 679                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 680                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 681
 682         connman_dbus_dict_append_array(&dict, "ssid",
 683                                         DBUS_TYPE_BYTE, &network, len);
 684
 685         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 686                                 g_ascii_strcasecmp(security, "wpa2") == 0) {
 687                 const char *key_mgmt = "WPA-PSK";
 688                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 689                                                 DBUS_TYPE_STRING, &key_mgmt);
 690
 691                 if (passphrase && strlen(passphrase) > 0)
 692                         connman_dbus_dict_append_variant(&dict, "psk",
 693                                                 DBUS_TYPE_STRING, &passphrase);
 694         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 695                 const char *key_mgmt = "NONE", *index = "0";
 696                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 697                                                 DBUS_TYPE_STRING, &key_mgmt);
 698
 699                 if (passphrase) {
 700                         int size = strlen(passphrase);
 701                         if (size == 10 || size == 26) {
 702                                 unsigned char *key = malloc(13);
 703                                 char tmp[3];
 704                                 int i;
 705                                 memset(tmp, 0, sizeof(tmp));
 706                                 if (key == NULL)
 707                                         size = 0;
 708                                 for (i = 0; i < size / 2; i++) {
 709                                         memcpy(tmp, passphrase + (i * 2), 2);
 710                                         key[i] = (unsigned char) strtol(tmp,
 711                                                                 NULL, 16);
 712                                 }
 713                                 connman_dbus_dict_append_array(&dict,
 714                                                 "wep_key0", DBUS_TYPE_BYTE,
 715                                                         &key, size / 2);
 716                                 free(key);
 717                         } else
 718                                 connman_dbus_dict_append_variant(&dict,
 719                                                 "wep_key0", DBUS_TYPE_STRING,
 720                                                                 &passphrase);
 721                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 722                                                 DBUS_TYPE_STRING, &index);
 723                 }
 724         } else {
 725                 const char *key_mgmt = "NONE";
 726                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 727                                                 DBUS_TYPE_STRING, &key_mgmt);
 728         }
 729
 730         dbus_message_iter_close_container(&array, &dict);
 731
 732         dbus_error_init(&error);
 733
 734         reply = dbus_connection_send_with_reply_and_block(connection,
 735                                                         message, -1, &error);
 736         if (reply == NULL) {
 737                 if (dbus_error_is_set(&error) == TRUE) {
 738                         connman_error("%s", error.message);
 739                         dbus_error_free(&error);
 740                 } else
 741                         connman_error("Failed to set network options");
 742                 dbus_message_unref(message);
 743                 return -EIO;
 744         }
 745
 746         dbus_message_unref(message);
 747
 748         dbus_message_unref(reply);
 749
 750         return 0;
 751 }
 752
 753 static int initiate_scan(struct supplicant_task *task)
 754 {
 755         DBusMessage *message;
 756         DBusPendingCall *call;
 757
 758         DBG("task %p", task);
 759
 760         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 761                                         SUPPLICANT_INTF ".Interface", "scan");
 762         if (message == NULL)
 763                 return -ENOMEM;
 764
 765         if (dbus_connection_send_with_reply(connection, message,
 766                                                 &call, TIMEOUT) == FALSE) {
 767                 connman_error("Failed to initiate scan");
 768                 dbus_message_unref(message);
 769                 return -EIO;
 770         }
 771
 772         dbus_message_unref(message);
 773
 774         return 0;
 775 }
 776
 777 static void extract_addr(DBusMessageIter *value,
 778                                         struct supplicant_result *result)
 779 {
 780         DBusMessageIter array;
 781         struct ether_addr *eth;
 782         unsigned char *addr;
 783         int addr_len;
 784
 785         dbus_message_iter_recurse(value, &array);
 786         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 787
 788         if (addr_len != 6)
 789                 return;
 790
 791         eth = (void *) addr;
 792
 793         result->addr = g_try_malloc0(18);
 794         if (result->addr == NULL)
 795                 return;
 796
 797         snprintf(result->addr, 18, "%02X:%02X:%02X:%02X:%02X:%02X",
 798                                                 eth->ether_addr_octet[0],
 799                                                 eth->ether_addr_octet[1],
 800                                                 eth->ether_addr_octet[2],
 801                                                 eth->ether_addr_octet[3],
 802                                                 eth->ether_addr_octet[4],
 803                                                 eth->ether_addr_octet[5]);
 804
 805         result->path = g_try_malloc0(18);
 806         if (result->path == NULL)
 807                 return;
 808
 809         snprintf(result->path, 18, "%02X_%02X_%02X_%02X_%02X_%02X",
 810                                                 eth->ether_addr_octet[0],
 811                                                 eth->ether_addr_octet[1],
 812                                                 eth->ether_addr_octet[2],
 813                                                 eth->ether_addr_octet[3],
 814                                                 eth->ether_addr_octet[4],
 815                                                 eth->ether_addr_octet[5]);
 816 }
 817
 818 static void extract_ssid(DBusMessageIter *value,
 819                                         struct supplicant_result *result)
 820 {
 821         DBusMessageIter array;
 822         unsigned char *ssid;
 823         int ssid_len;
 824
 825         dbus_message_iter_recurse(value, &array);
 826         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 827
 828         if (ssid_len < 1)
 829                 return;
 830
 831         if (ssid[0] == '\0')
 832                 return;
 833
 834         result->ssid = g_try_malloc(ssid_len);
 835         if (result->ssid == NULL)
 836                 return;
 837
 838         memcpy(result->ssid, ssid, ssid_len);
 839         result->ssid_len = ssid_len;
 840
 841         result->name = g_try_malloc0(ssid_len + 1);
 842         if (result->name == NULL)
 843                 return;
 844
 845         memcpy(result->name, ssid, ssid_len);
 846 }
 847
 848 static void extract_wpaie(DBusMessageIter *value,
 849                                         struct supplicant_result *result)
 850 {
 851         DBusMessageIter array;
 852         unsigned char *ie;
 853         int ie_len;
 854
 855         dbus_message_iter_recurse(value, &array);
 856         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 857
 858         if (ie_len > 0)
 859                 result->has_wpa = TRUE;
 860 }
 861
 862 static void extract_rsnie(DBusMessageIter *value,
 863                                         struct supplicant_result *result)
 864 {
 865         DBusMessageIter array;
 866         unsigned char *ie;
 867         int ie_len;
 868
 869         dbus_message_iter_recurse(value, &array);
 870         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 871
 872         if (ie_len > 0)
 873                 result->has_rsn = TRUE;
 874 }
 875
 876 static void extract_wpsie(DBusMessageIter *value,
 877                                         struct supplicant_result *result)
 878 {
 879         DBusMessageIter array;
 880         unsigned char *ie;
 881         int ie_len;
 882
 883         dbus_message_iter_recurse(value, &array);
 884         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 885
 886         if (ie_len > 0)
 887                 result->has_wps = TRUE;
 888 }
 889
 890 static void extract_capabilites(DBusMessageIter *value,
 891                                         struct supplicant_result *result)
 892 {
 893         dbus_message_iter_get_basic(value, &result->capabilities);
 894
 895         if (result->capabilities & IEEE80211_CAP_ESS)
 896                 result->adhoc = FALSE;
 897         else if (result->capabilities & IEEE80211_CAP_IBSS)
 898                 result->adhoc = TRUE;
 899
 900         if (result->capabilities & IEEE80211_CAP_PRIVACY)
 901                 result->has_wep = TRUE;
 902 }
 903
 904 static void get_properties(struct supplicant_task *task);
 905
 906 static void properties_reply(DBusPendingCall *call, void *user_data)
 907 {
 908         struct supplicant_task *task = user_data;
 909         struct supplicant_result result;
 910         struct connman_network *network;
 911         DBusMessage *reply;
 912         DBusMessageIter array, dict;
 913         const char *mode, *security;
 914         unsigned char strength;
 915
 916         DBG("task %p", task);
 917
 918         reply = dbus_pending_call_steal_reply(call);
 919         if (reply == NULL) {
 920                 get_properties(task);
 921                 return;
 922         }
 923
 924         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 925                 dbus_message_unref(reply);
 926                 get_properties(task);
 927                 return;
 928         }
 929
 930         memset(&result, 0, sizeof(result));
 931
 932         dbus_message_iter_init(reply, &array);
 933
 934         dbus_message_iter_recurse(&array, &dict);
 935
 936         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 937                 DBusMessageIter entry, value;
 938                 const char *key;
 939
 940                 dbus_message_iter_recurse(&dict, &entry);
 941                 dbus_message_iter_get_basic(&entry, &key);
 942
 943                 dbus_message_iter_next(&entry);
 944
 945                 dbus_message_iter_recurse(&entry, &value);
 946
 947                 //type = dbus_message_iter_get_arg_type(&value);
 948                 //dbus_message_iter_get_basic(&value, &val);
 949
 950                 /*
 951                  * bssid        : a (97)
 952                  * ssid         : a (97)
 953                  * wpaie        : a (97)
 954                  * rsnie        : a (97)
 955                  * wpsie        : a (97)
 956                  * frequency    : i (105)
 957                  * capabilities : q (113)
 958                  * quality      : i (105)
 959                  * noise        : i (105)
 960                  * level        : i (105)
 961                  * maxrate      : i (105)
 962                  */
 963
 964                 if (g_str_equal(key, "bssid") == TRUE)
 965                         extract_addr(&value, &result);
 966                 else if (g_str_equal(key, "ssid") == TRUE)
 967                         extract_ssid(&value, &result);
 968                 else if (g_str_equal(key, "wpaie") == TRUE)
 969                         extract_wpaie(&value, &result);
 970                 else if (g_str_equal(key, "rsnie") == TRUE)
 971                         extract_rsnie(&value, &result);
 972                 else if (g_str_equal(key, "wpsie") == TRUE)
 973                         extract_wpsie(&value, &result);
 974                 else if (g_str_equal(key, "capabilities") == TRUE)
 975                         extract_capabilites(&value, &result);
 976                 else if (g_str_equal(key, "quality") == TRUE)
 977                         dbus_message_iter_get_basic(&value, &result.quality);
 978                 else if (g_str_equal(key, "noise") == TRUE)
 979                         dbus_message_iter_get_basic(&value, &result.noise);
 980                 else if (g_str_equal(key, "level") == TRUE)
 981                         dbus_message_iter_get_basic(&value, &result.level);
 982                 else if (g_str_equal(key, "maxrate") == TRUE)
 983                         dbus_message_iter_get_basic(&value, &result.maxrate);
 984
 985                 dbus_message_iter_next(&dict);
 986         }
 987
 988         if (result.path == NULL)
 989                 goto done;
 990
 991         if (result.path[0] == '\0')
 992                 goto done;
 993
 994         strength = result.quality;
 995
 996         if (result.has_rsn == TRUE)
 997                 security = "wpa2";
 998         else if (result.has_wpa == TRUE)
 999                 security = "wpa";
1000         else if (result.has_wep == TRUE)
1001                 security = "wep";
1002         else
1003                 security = "none";
1004
1005         network = connman_device_get_network(task->device, result.path);
1006         if (network == NULL) {
1007                 int index;
1008
1009                 network = connman_network_create(result.path,
1010                                                 CONNMAN_NETWORK_TYPE_WIFI);
1011                 if (network == NULL)
1012                         goto done;
1013
1014                 index = connman_device_get_index(task->device);
1015                 connman_network_set_index(network, index);
1016
1017                 connman_network_set_protocol(network,
1018                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1019
1020                 connman_network_set_string(network, "Address", result.addr);
1021
1022                 if (connman_device_add_network(task->device, network) < 0) {
1023                         connman_network_unref(network);
1024                         goto done;
1025                 }
1026         }
1027
1028         connman_network_set_string(network, "Name", result.name);
1029
1030         connman_network_set_blob(network, "WiFi.SSID",
1031                                                 result.ssid, result.ssid_len);
1032
1033         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1034         connman_network_set_string(network, "WiFi.Mode", mode);
1035
1036         DBG("%s (%s %s) strength %d (%s)",
1037                         result.name, mode, security, strength,
1038                         (result.has_wps == TRUE) ? "WPS" : "no WPS");
1039
1040         connman_network_set_available(network, TRUE);
1041         connman_network_set_uint8(network, "Strength", strength);
1042
1043         connman_network_set_string(network, "WiFi.Security", security);
1044
1045 done:
1046         g_free(result.path);
1047         g_free(result.addr);
1048         g_free(result.name);
1049         g_free(result.ssid);
1050
1051         dbus_message_unref(reply);
1052
1053         get_properties(task);
1054 }
1055
1056 static void get_properties(struct supplicant_task *task)
1057 {
1058         DBusMessage *message;
1059         DBusPendingCall *call;
1060         char *path;
1061
1062         path = g_slist_nth_data(task->scan_results, 0);
1063         if (path == NULL)
1064                 goto noscan;
1065
1066         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1067                                                 SUPPLICANT_INTF ".BSSID",
1068                                                                 "properties");
1069
1070         task->scan_results = g_slist_remove(task->scan_results, path);
1071         g_free(path);
1072
1073         if (message == NULL)
1074                 goto noscan;
1075
1076         if (dbus_connection_send_with_reply(connection, message,
1077                                                 &call, TIMEOUT) == FALSE) {
1078                 connman_error("Failed to get network properties");
1079                 dbus_message_unref(message);
1080                 goto noscan;
1081         }
1082
1083         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1084
1085         dbus_message_unref(message);
1086
1087         return;
1088
1089 noscan:
1090         if (task->noscan == FALSE)
1091                 connman_device_set_scanning(task->device, FALSE);
1092 }
1093
1094 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1095 {
1096         struct supplicant_task *task = user_data;
1097         DBusMessage *reply;
1098         DBusError error;
1099         char **results;
1100         int i, num_results;
1101
1102         DBG("task %p", task);
1103
1104         reply = dbus_pending_call_steal_reply(call);
1105         if (reply == NULL)
1106                 goto noscan;
1107
1108         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1109                 goto done;
1110
1111         dbus_error_init(&error);
1112
1113         if (dbus_message_get_args(reply, &error,
1114                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1115                                                 &results, &num_results,
1116                                                 DBUS_TYPE_INVALID) == FALSE) {
1117                 if (dbus_error_is_set(&error) == TRUE) {
1118                         connman_error("%s", error.message);
1119                         dbus_error_free(&error);
1120                 } else
1121                         connman_error("Wrong arguments for scan result");
1122                 goto done;
1123         }
1124
1125         if (num_results == 0)
1126                 goto done;
1127
1128         for (i = 0; i < num_results; i++) {
1129                 char *path = g_strdup(results[i]);
1130                 if (path == NULL)
1131                         continue;
1132
1133                 task->scan_results = g_slist_append(task->scan_results, path);
1134         }
1135
1136         g_strfreev(results);
1137
1138         dbus_message_unref(reply);
1139
1140         get_properties(task);
1141
1142         return;
1143
1144 done:
1145         dbus_message_unref(reply);
1146
1147 noscan:
1148         if (task->noscan == FALSE)
1149                 connman_device_set_scanning(task->device, FALSE);
1150 }
1151
1152 static void scan_results_available(struct supplicant_task *task)
1153 {
1154         DBusMessage *message;
1155         DBusPendingCall *call;
1156
1157         DBG("task %p", task);
1158
1159         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1160                                                 SUPPLICANT_INTF ".Interface",
1161                                                         "scanResults");
1162         if (message == NULL)
1163                 return;
1164
1165         if (dbus_connection_send_with_reply(connection, message,
1166                                                 &call, TIMEOUT) == FALSE) {
1167                 connman_error("Failed to request scan result");
1168                 goto done;
1169         }
1170
1171         if (task->noscan == FALSE)
1172                 connman_device_set_scanning(task->device, TRUE);
1173
1174         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1175
1176 done:
1177         dbus_message_unref(message);
1178 }
1179
1180 static enum supplicant_state string2state(const char *state)
1181 {
1182         if (g_str_equal(state, "INACTIVE") == TRUE)
1183                 return WPA_INACTIVE;
1184         else if (g_str_equal(state, "SCANNING") == TRUE)
1185                 return WPA_SCANNING;
1186         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1187                 return WPA_ASSOCIATING;
1188         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1189                 return WPA_ASSOCIATED;
1190         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1191                 return WPA_GROUP_HANDSHAKE;
1192         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1193                 return WPA_4WAY_HANDSHAKE;
1194         else if (g_str_equal(state, "COMPLETED") == TRUE)
1195                 return WPA_COMPLETED;
1196         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1197                 return WPA_DISCONNECTED;
1198         else
1199                 return WPA_INVALID;
1200 }
1201
1202 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1203 {
1204         DBusError error;
1205         const char *newstate, *oldstate;
1206         enum supplicant_state state;
1207
1208         dbus_error_init(&error);
1209
1210         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1211                                                 DBUS_TYPE_STRING, &oldstate,
1212                                                 DBUS_TYPE_INVALID) == FALSE) {
1213                 if (dbus_error_is_set(&error) == TRUE) {
1214                         connman_error("%s", error.message);
1215                         dbus_error_free(&error);
1216                 } else
1217                         connman_error("Wrong arguments for state change");
1218                 return;
1219         }
1220
1221         DBG("state %s ==> %s", oldstate, newstate);
1222
1223         state = string2state(newstate);
1224         if (state == WPA_INVALID)
1225                 return;
1226
1227         task->state = state;
1228
1229         switch (task->state) {
1230         case WPA_SCANNING:
1231                 task->noscan = TRUE;
1232                 connman_device_set_scanning(task->device, TRUE);
1233                 break;
1234         case WPA_ASSOCIATING:
1235         case WPA_ASSOCIATED:
1236         case WPA_4WAY_HANDSHAKE:
1237         case WPA_GROUP_HANDSHAKE:
1238                 task->noscan = TRUE;
1239                 break;
1240         case WPA_COMPLETED:
1241         case WPA_DISCONNECTED:
1242                 task->noscan = FALSE;
1243                 break;
1244         case WPA_INACTIVE:
1245                 task->noscan = FALSE;
1246                 connman_device_set_scanning(task->device, FALSE);
1247                 break;
1248         case WPA_INVALID:
1249                 break;
1250         }
1251
1252         if (task->network == NULL)
1253                 return;
1254
1255         switch (task->state) {
1256         case WPA_COMPLETED:
1257                 /* carrier on */
1258                 connman_network_set_connected(task->network, TRUE);
1259                 connman_device_set_scanning(task->device, FALSE);
1260                 break;
1261         case WPA_DISCONNECTED:
1262                 /* carrier off */
1263                 connman_network_set_connected(task->network, FALSE);
1264                 connman_device_set_scanning(task->device, FALSE);
1265                 break;
1266         default:
1267                 break;
1268         }
1269 }
1270
1271 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1272                                                 DBusMessage *msg, void *data)
1273 {
1274         struct supplicant_task *task;
1275         const char *member, *path;
1276
1277         if (dbus_message_has_interface(msg,
1278                                 SUPPLICANT_INTF ".Interface") == FALSE)
1279                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1280
1281         member = dbus_message_get_member(msg);
1282         if (member == NULL)
1283                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1284
1285         path = dbus_message_get_path(msg);
1286         if (path == NULL)
1287                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1288
1289         task = find_task_by_path(path);
1290         if (task == NULL)
1291                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1292
1293         DBG("task %p member %s", task, member);
1294
1295         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1296                 scan_results_available(task);
1297         else if (g_str_equal(member, "StateChange") == TRUE)
1298                 state_change(task, msg);
1299
1300         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1301 }
1302
1303 int supplicant_start(struct connman_device *device)
1304 {
1305         struct supplicant_task *task;
1306
1307         DBG("device %p", device);
1308
1309         task = g_try_new0(struct supplicant_task, 1);
1310         if (task == NULL)
1311                 return -ENOMEM;
1312
1313         task->ifindex = connman_device_get_index(device);
1314         task->ifname = inet_index2name(task->ifindex);
1315
1316         if (task->ifname == NULL) {
1317                 g_free(task);
1318                 return -ENOMEM;
1319         }
1320
1321         task->device = connman_device_ref(device);
1322
1323         task->created = FALSE;
1324         task->noscan = FALSE;
1325         task->state = WPA_INVALID;
1326
1327         task_list = g_slist_append(task_list, task);
1328
1329         return create_interface(task);
1330 }
1331
1332 int supplicant_stop(struct connman_device *device)
1333 {
1334         int index = connman_device_get_index(device);
1335         struct supplicant_task *task;
1336
1337         DBG("device %p", device);
1338
1339         task = find_task_by_index(index);
1340         if (task == NULL)
1341                 return -ENODEV;
1342
1343         task_list = g_slist_remove(task_list, task);
1344
1345         disable_network(task);
1346
1347         remove_network(task);
1348
1349         return remove_interface(task);
1350 }
1351
1352 int supplicant_scan(struct connman_device *device)
1353 {
1354         int index = connman_device_get_index(device);
1355         struct supplicant_task *task;
1356         int err;
1357
1358         DBG("device %p", device);
1359
1360         task = find_task_by_index(index);
1361         if (task == NULL)
1362                 return -ENODEV;
1363
1364         switch (task->state) {
1365         case WPA_SCANNING:
1366                 return -EALREADY;
1367         case WPA_ASSOCIATING:
1368         case WPA_ASSOCIATED:
1369         case WPA_4WAY_HANDSHAKE:
1370         case WPA_GROUP_HANDSHAKE:
1371                 return -EBUSY;
1372         default:
1373                 break;
1374         }
1375
1376         err = initiate_scan(task);
1377
1378         return 0;
1379 }
1380
1381 int supplicant_connect(struct connman_network *network)
1382 {
1383         struct supplicant_task *task;
1384         const char *security, *passphrase;
1385         const void *ssid;
1386         unsigned int ssid_len;
1387         int index;
1388
1389         DBG("network %p", network);
1390
1391         security = connman_network_get_string(network, "WiFi.Security");
1392         passphrase = connman_network_get_string(network, "WiFi.Passphrase");
1393
1394         ssid = connman_network_get_blob(network, "WiFi.SSID", &ssid_len);
1395
1396         DBG("security %s passphrase %s", security, passphrase);
1397
1398         if (security == NULL && passphrase == NULL)
1399                 return -EINVAL;
1400
1401         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1402                 return -EINVAL;
1403
1404         index = connman_network_get_index(network);
1405
1406         task = find_task_by_index(index);
1407         if (task == NULL)
1408                 return -ENODEV;
1409
1410         task->network = connman_network_ref(network);
1411
1412         add_network(task);
1413
1414         select_network(task);
1415         disable_network(task);
1416
1417         set_network(task, ssid, ssid_len, security, passphrase);
1418
1419         enable_network(task);
1420
1421         return 0;
1422 }
1423
1424 int supplicant_disconnect(struct connman_network *network)
1425 {
1426         struct supplicant_task *task;
1427         int index;
1428
1429         DBG("network %p", network);
1430
1431         index = connman_network_get_index(network);
1432
1433         task = find_task_by_index(index);
1434         if (task == NULL)
1435                 return -ENODEV;
1436
1437         disable_network(task);
1438
1439         remove_network(task);
1440
1441         connman_network_set_connected(task->network, FALSE);
1442
1443         connman_network_unref(task->network);
1444
1445         return 0;
1446 }
1447
1448 static void supplicant_activate(DBusConnection *conn)
1449 {
1450         DBusMessage *message;
1451
1452         DBG("conn %p", conn);
1453
1454         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1455                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1456         if (message == NULL)
1457                 return;
1458
1459         dbus_message_set_no_reply(message, TRUE);
1460
1461         dbus_connection_send(conn, message, NULL);
1462
1463         dbus_message_unref(message);
1464 }
1465
1466 static GSList *driver_list = NULL;
1467
1468 static void supplicant_probe(DBusConnection *conn, void *user_data)
1469 {
1470         GSList *list;
1471
1472         DBG("conn %p", conn);
1473
1474         for (list = driver_list; list; list = list->next) {
1475                 struct supplicant_driver *driver = list->data;
1476
1477                 DBG("driver %p name %s", driver, driver->name);
1478
1479                 if (driver->probe)
1480                         driver->probe();
1481         }
1482 }
1483
1484 static void supplicant_remove(DBusConnection *conn, void *user_data)
1485 {
1486         GSList *list;
1487
1488         DBG("conn %p", conn);
1489
1490         for (list = driver_list; list; list = list->next) {
1491                 struct supplicant_driver *driver = list->data;
1492
1493                 DBG("driver %p name %s", driver, driver->name);
1494
1495                 if (driver->remove)
1496                         driver->remove();
1497         }
1498 }
1499
1500 static const char *supplicant_rule = "type=signal,"
1501                                 "interface=" SUPPLICANT_INTF ".Interface";
1502 static guint watch;
1503
1504 static int supplicant_create(void)
1505 {
1506         if (g_slist_length(driver_list) > 0)
1507                 return 0;
1508
1509         connection = connman_dbus_get_connection();
1510         if (connection == NULL)
1511                 return -EIO;
1512
1513         DBG("connection %p", connection);
1514
1515         if (dbus_connection_add_filter(connection,
1516                                 supplicant_filter, NULL, NULL) == FALSE) {
1517                 connection = connman_dbus_get_connection();
1518                 return -EIO;
1519         }
1520
1521         dbus_bus_add_match(connection, supplicant_rule, NULL);
1522         dbus_connection_flush(connection);
1523
1524         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1525                         supplicant_probe, supplicant_remove, NULL, NULL);
1526
1527         return 0;
1528 }
1529
1530 static void supplicant_destroy(void)
1531 {
1532         if (g_slist_length(driver_list) > 0)
1533                 return;
1534
1535         DBG("connection %p", connection);
1536
1537         if (watch > 0)
1538                 g_dbus_remove_watch(connection, watch);
1539
1540         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1541         dbus_connection_flush(connection);
1542
1543         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1544
1545         dbus_connection_unref(connection);
1546         connection = NULL;
1547 }
1548
1549 int supplicant_register(struct supplicant_driver *driver)
1550 {
1551         int err;
1552
1553         DBG("driver %p name %s", driver, driver->name);
1554
1555         err = supplicant_create();
1556         if (err < 0)
1557                 return err;
1558
1559         driver_list = g_slist_append(driver_list, driver);
1560
1561         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1562                 supplicant_probe(connection, NULL);
1563         else
1564                 supplicant_activate(connection);
1565
1566         return 0;
1567 }
1568
1569 void supplicant_unregister(struct supplicant_driver *driver)
1570 {
1571         DBG("driver %p name %s", driver, driver->name);
1572
1573         supplicant_remove(connection, NULL);
1574
1575         driver_list = g_slist_remove(driver_list, driver);
1576
1577         supplicant_destroy();
1578 }