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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  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 <stdlib.h>
  27 #include <string.h>
  28 #include <dbus/dbus.h>
  29
  30 #include <connman/log.h>
  31 #include <connman/dbus.h>
  32
  33 #include "inet.h"
  34 #include "supplicant.h"
  35
  36 #define TIMEOUT 5000
  37
  38 #define IEEE80211_CAP_ESS       0x0001
  39 #define IEEE80211_CAP_IBSS      0x0002
  40 #define IEEE80211_CAP_PRIVACY   0x0010
  41
  42 struct supplicant_task {
  43         int ifindex;
  44         gchar *ifname;
  45         struct connman_element *element;
  46         struct supplicant_callback *callback;
  47         gchar *path;
  48         gboolean created;
  49         gchar *network;
  50         enum supplicant_state state;
  51 };
  52
  53 static GSList *task_list = NULL;
  54
  55 static DBusConnection *connection;
  56
  57 static struct supplicant_task *find_task_by_index(int index)
  58 {
  59         GSList *list;
  60
  61         for (list = task_list; list; list = list->next) {
  62                 struct supplicant_task *task = list->data;
  63
  64                 if (task->ifindex == index)
  65                         return task;
  66         }
  67
  68         return NULL;
  69 }
  70
  71 static struct supplicant_task *find_task_by_path(const char *path)
  72 {
  73         GSList *list;
  74
  75         for (list = task_list; list; list = list->next) {
  76                 struct supplicant_task *task = list->data;
  77
  78                 if (g_str_equal(task->path, path) == TRUE)
  79                         return task;
  80         }
  81
  82         return NULL;
  83 }
  84
  85 static int get_interface(struct supplicant_task *task)
  86 {
  87         DBusMessage *message, *reply;
  88         DBusError error;
  89         const char *path;
  90
  91         DBG("task %p", task);
  92
  93         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
  94                                         SUPPLICANT_INTF, "getInterface");
  95         if (message == NULL)
  96                 return -ENOMEM;
  97
  98         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
  99                                                         DBUS_TYPE_INVALID);
 100
 101         dbus_error_init(&error);
 102
 103         reply = dbus_connection_send_with_reply_and_block(connection,
 104                                                         message, -1, &error);
 105         if (reply == NULL) {
 106                 if (dbus_error_is_set(&error) == TRUE) {
 107                         connman_error("%s", error.message);
 108                         dbus_error_free(&error);
 109                 } else
 110                         connman_error("Failed to get interface");
 111                 dbus_message_unref(message);
 112                 return -EIO;
 113         }
 114
 115         dbus_message_unref(message);
 116
 117         dbus_error_init(&error);
 118
 119         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 120                                                 DBUS_TYPE_INVALID) == FALSE) {
 121                 if (dbus_error_is_set(&error) == TRUE) {
 122                         connman_error("%s", error.message);
 123                         dbus_error_free(&error);
 124                 } else
 125                         connman_error("Wrong arguments for interface");
 126                 dbus_message_unref(reply);
 127                 return -EIO;
 128         }
 129
 130         DBG("path %s", path);
 131
 132         task->path = g_strdup(path);
 133         task->created = FALSE;
 134
 135         dbus_message_unref(reply);
 136
 137         return 0;
 138 }
 139
 140 static int add_interface(struct supplicant_task *task)
 141 {
 142         DBusMessage *message, *reply;
 143         DBusError error;
 144         const char *path;
 145
 146         DBG("task %p", task);
 147
 148         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 149                                         SUPPLICANT_INTF, "addInterface");
 150         if (message == NULL)
 151                 return -ENOMEM;
 152
 153         dbus_error_init(&error);
 154
 155         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 156                                                         DBUS_TYPE_INVALID);
 157
 158         reply = dbus_connection_send_with_reply_and_block(connection,
 159                                                         message, -1, &error);
 160         if (reply == NULL) {
 161                 if (dbus_error_is_set(&error) == TRUE) {
 162                         connman_error("%s", error.message);
 163                         dbus_error_free(&error);
 164                 } else
 165                         connman_error("Failed to add interface");
 166                 dbus_message_unref(message);
 167                 return -EIO;
 168         }
 169
 170         dbus_message_unref(message);
 171
 172         dbus_error_init(&error);
 173
 174         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 175                                                 DBUS_TYPE_INVALID) == FALSE) {
 176                 if (dbus_error_is_set(&error) == TRUE) {
 177                         connman_error("%s", error.message);
 178                         dbus_error_free(&error);
 179                 } else
 180                         connman_error("Wrong arguments for interface");
 181                 dbus_message_unref(reply);
 182                 return -EIO;
 183         }
 184
 185         DBG("path %s", path);
 186
 187         task->path = g_strdup(path);
 188         task->created = TRUE;
 189
 190         dbus_message_unref(reply);
 191
 192         return 0;
 193 }
 194
 195 static int remove_interface(struct supplicant_task *task)
 196 {
 197         DBusMessage *message, *reply;
 198         DBusError error;
 199
 200         DBG("task %p", task);
 201
 202         if (task->created == FALSE)
 203                 return -EINVAL;
 204
 205         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 206                                         SUPPLICANT_INTF, "removeInterface");
 207         if (message == NULL)
 208                 return -ENOMEM;
 209
 210         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 211                                                         DBUS_TYPE_INVALID);
 212
 213         dbus_error_init(&error);
 214
 215         reply = dbus_connection_send_with_reply_and_block(connection,
 216                                                         message, -1, &error);
 217         if (reply == NULL) {
 218                 if (dbus_error_is_set(&error) == TRUE) {
 219                         connman_error("%s", error.message);
 220                         dbus_error_free(&error);
 221                 } else
 222                         connman_error("Failed to remove interface");
 223                 dbus_message_unref(message);
 224                 return -EIO;
 225         }
 226
 227         dbus_message_unref(message);
 228
 229         dbus_message_unref(reply);
 230
 231         return 0;
 232 }
 233
 234 static int set_ap_scan(struct supplicant_task *task)
 235 {
 236         DBusMessage *message, *reply;
 237         DBusError error;
 238         guint32 ap_scan = 1;
 239
 240         DBG("task %p", task);
 241
 242         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 243                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 244         if (message == NULL)
 245                 return -ENOMEM;
 246
 247         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 248                                                         DBUS_TYPE_INVALID);
 249
 250         dbus_error_init(&error);
 251
 252         reply = dbus_connection_send_with_reply_and_block(connection,
 253                                                         message, -1, &error);
 254         if (reply == NULL) {
 255                 if (dbus_error_is_set(&error) == TRUE) {
 256                         connman_error("%s", error.message);
 257                         dbus_error_free(&error);
 258                 } else
 259                         connman_error("Failed to set AP scan");
 260                 dbus_message_unref(message);
 261                 return -EIO;
 262         }
 263
 264         dbus_message_unref(message);
 265
 266         dbus_message_unref(reply);
 267
 268         return 0;
 269 }
 270
 271 static int add_network(struct supplicant_task *task)
 272 {
 273         DBusMessage *message, *reply;
 274         DBusError error;
 275         const char *path;
 276
 277         DBG("task %p", task);
 278
 279         if (task->network != NULL)
 280                 return -EALREADY;
 281
 282         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 283                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 284         if (message == NULL)
 285                 return -ENOMEM;
 286
 287         dbus_error_init(&error);
 288
 289         reply = dbus_connection_send_with_reply_and_block(connection,
 290                                                         message, -1, &error);
 291         if (reply == NULL) {
 292                 if (dbus_error_is_set(&error) == TRUE) {
 293                         connman_error("%s", error.message);
 294                         dbus_error_free(&error);
 295                 } else
 296                         connman_error("Failed to add network");
 297                 dbus_message_unref(message);
 298                 return -EIO;
 299         }
 300
 301         dbus_message_unref(message);
 302
 303         dbus_error_init(&error);
 304
 305         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 306                                                 DBUS_TYPE_INVALID) == FALSE) {
 307                 if (dbus_error_is_set(&error) == TRUE) {
 308                         connman_error("%s", error.message);
 309                         dbus_error_free(&error);
 310                 } else
 311                         connman_error("Wrong arguments for network");
 312                 dbus_message_unref(reply);
 313                 return -EIO;
 314         }
 315
 316         DBG("path %s", path);
 317
 318         task->network = g_strdup(path);
 319
 320         dbus_message_unref(reply);
 321
 322         return 0;
 323 }
 324
 325 static int remove_network(struct supplicant_task *task)
 326 {
 327         DBusMessage *message, *reply;
 328         DBusError error;
 329
 330         DBG("task %p", task);
 331
 332         if (task->network == NULL)
 333                 return -EINVAL;
 334
 335         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 336                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 337         if (message == NULL)
 338                 return -ENOMEM;
 339
 340         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->network,
 341                                                         DBUS_TYPE_INVALID);
 342
 343         dbus_error_init(&error);
 344
 345         reply = dbus_connection_send_with_reply_and_block(connection,
 346                                                         message, -1, &error);
 347         if (reply == NULL) {
 348                 if (dbus_error_is_set(&error) == TRUE) {
 349                         connman_error("%s", error.message);
 350                         dbus_error_free(&error);
 351                 } else
 352                         connman_error("Failed to remove network");
 353                 dbus_message_unref(message);
 354                 return -EIO;
 355         }
 356
 357         dbus_message_unref(message);
 358
 359         dbus_message_unref(reply);
 360
 361         g_free(task->network);
 362         task->network = NULL;
 363
 364         return 0;
 365 }
 366
 367 static int select_network(struct supplicant_task *task)
 368 {
 369         DBusMessage *message, *reply;
 370         DBusError error;
 371
 372         DBG("task %p", task);
 373
 374         if (task->network == NULL)
 375                 return -EINVAL;
 376
 377         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 378                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 379         if (message == NULL)
 380                 return -ENOMEM;
 381
 382         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->network,
 383                                                         DBUS_TYPE_INVALID);
 384
 385         dbus_error_init(&error);
 386
 387         reply = dbus_connection_send_with_reply_and_block(connection,
 388                                                         message, -1, &error);
 389         if (reply == NULL) {
 390                 if (dbus_error_is_set(&error) == TRUE) {
 391                         connman_error("%s", error.message);
 392                         dbus_error_free(&error);
 393                 } else
 394                         connman_error("Failed to select network");
 395                 dbus_message_unref(message);
 396                 return -EIO;
 397         }
 398
 399         dbus_message_unref(message);
 400
 401         dbus_message_unref(reply);
 402
 403         return 0;
 404 }
 405
 406 static int enable_network(struct supplicant_task *task)
 407 {
 408         DBusMessage *message, *reply;
 409         DBusError error;
 410
 411         DBG("task %p", task);
 412
 413         if (task->network == NULL)
 414                 return -EINVAL;
 415
 416         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->network,
 417                                         SUPPLICANT_INTF ".Network", "enable");
 418         if (message == NULL)
 419                 return -ENOMEM;
 420
 421         dbus_error_init(&error);
 422
 423         reply = dbus_connection_send_with_reply_and_block(connection,
 424                                                         message, -1, &error);
 425         if (reply == NULL) {
 426                 if (dbus_error_is_set(&error) == TRUE) {
 427                         connman_error("%s", error.message);
 428                         dbus_error_free(&error);
 429                 } else
 430                         connman_error("Failed to enable network");
 431                 dbus_message_unref(message);
 432                 return -EIO;
 433         }
 434
 435         dbus_message_unref(message);
 436
 437         dbus_message_unref(reply);
 438
 439         return 0;
 440 }
 441
 442 static int disable_network(struct supplicant_task *task)
 443 {
 444         DBusMessage *message, *reply;
 445         DBusError error;
 446
 447         DBG("task %p", task);
 448
 449         if (task->network == NULL)
 450                 return -EINVAL;
 451
 452         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->network,
 453                                         SUPPLICANT_INTF ".Network", "disable");
 454         if (message == NULL)
 455                 return -ENOMEM;
 456
 457         dbus_error_init(&error);
 458
 459         reply = dbus_connection_send_with_reply_and_block(connection,
 460                                                         message, -1, &error);
 461         if (reply == NULL) {
 462                 if (dbus_error_is_set(&error) == TRUE) {
 463                         connman_error("%s", error.message);
 464                         dbus_error_free(&error);
 465                 } else
 466                         connman_error("Failed to disable network");
 467                 dbus_message_unref(message);
 468                 return -EIO;
 469         }
 470
 471         dbus_message_unref(message);
 472
 473         dbus_message_unref(reply);
 474
 475         return 0;
 476 }
 477
 478 static int set_network(struct supplicant_task *task,
 479                                 const unsigned char *network, int len,
 480                                 const char *security, const char *passphrase)
 481 {
 482         DBusMessage *message, *reply;
 483         DBusMessageIter array, dict;
 484         DBusError error;
 485
 486         DBG("task %p", task);
 487
 488         if (task->network == NULL)
 489                 return -EINVAL;
 490
 491         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->network,
 492                                         SUPPLICANT_INTF ".Network", "set");
 493         if (message == NULL)
 494                 return -ENOMEM;
 495
 496         dbus_message_iter_init_append(message, &array);
 497
 498         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 499                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 500                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 501                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 502
 503         connman_dbus_dict_append_array(&dict, "ssid",
 504                                         DBUS_TYPE_BYTE, &network, len);
 505
 506         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 507                                 g_ascii_strcasecmp(security, "wpa2") == 0) {
 508                 const char *key_mgmt = "WPA-PSK";
 509                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 510                                                 DBUS_TYPE_STRING, &key_mgmt);
 511
 512                 if (passphrase && strlen(passphrase) > 0)
 513                         connman_dbus_dict_append_variant(&dict, "psk",
 514                                                 DBUS_TYPE_STRING, &passphrase);
 515         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 516                 const char *key_mgmt = "NONE", *index = "0";
 517                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 518                                                 DBUS_TYPE_STRING, &key_mgmt);
 519
 520                 if (passphrase) {
 521                         int size = strlen(passphrase);
 522                         if (size == 10 || size == 26) {
 523                                 unsigned char *key = malloc(13);
 524                                 char tmp[3];
 525                                 int i;
 526                                 memset(tmp, 0, sizeof(tmp));
 527                                 if (key == NULL)
 528                                         size = 0;
 529                                 for (i = 0; i < size / 2; i++) {
 530                                         memcpy(tmp, passphrase + (i * 2), 2);
 531                                         key[i] = (unsigned char) strtol(tmp,
 532                                                                 NULL, 16);
 533                                 }
 534                                 connman_dbus_dict_append_array(&dict,
 535                                                 "wep_key0", DBUS_TYPE_BYTE,
 536                                                         &key, size / 2);
 537                                 free(key);
 538                         } else
 539                                 connman_dbus_dict_append_variant(&dict,
 540                                                 "wep_key0", DBUS_TYPE_STRING,
 541                                                                 &passphrase);
 542                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 543                                                 DBUS_TYPE_STRING, &index);
 544                 }
 545         } else {
 546                 const char *key_mgmt = "NONE";
 547                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 548                                                 DBUS_TYPE_STRING, &key_mgmt);
 549         }
 550
 551         dbus_message_iter_close_container(&array, &dict);
 552
 553         dbus_error_init(&error);
 554
 555         reply = dbus_connection_send_with_reply_and_block(connection,
 556                                                         message, -1, &error);
 557         if (reply == NULL) {
 558                 if (dbus_error_is_set(&error) == TRUE) {
 559                         connman_error("%s", error.message);
 560                         dbus_error_free(&error);
 561                 } else
 562                         connman_error("Failed to set network options");
 563                 dbus_message_unref(message);
 564                 return -EIO;
 565         }
 566
 567         dbus_message_unref(message);
 568
 569         dbus_message_unref(reply);
 570
 571         return 0;
 572 }
 573
 574 static int initiate_scan(struct supplicant_task *task)
 575 {
 576         DBusMessage *message;
 577         DBusPendingCall *call;
 578
 579         DBG("task %p", task);
 580
 581         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 582                                         SUPPLICANT_INTF ".Interface", "scan");
 583         if (message == NULL)
 584                 return -ENOMEM;
 585
 586         if (dbus_connection_send_with_reply(connection, message,
 587                                                 &call, TIMEOUT) == FALSE) {
 588                 connman_error("Failed to initiate scan");
 589                 dbus_message_unref(message);
 590                 return -EIO;
 591         }
 592
 593         dbus_message_unref(message);
 594
 595         return 0;
 596 }
 597
 598 static void extract_ssid(struct supplicant_network *network,
 599                                                 DBusMessageIter *value)
 600 {
 601         DBusMessageIter array;
 602         unsigned char *ssid;
 603         int ssid_len;
 604
 605         dbus_message_iter_recurse(value, &array);
 606         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
 607
 608         if (ssid_len < 1)
 609                 return;
 610
 611         network->ssid = g_try_malloc(ssid_len);
 612         if (network->ssid == NULL)
 613                 return;
 614
 615         memcpy(network->ssid, ssid, ssid_len);
 616         network->ssid_len = ssid_len;
 617
 618         network->identifier = g_try_malloc0(ssid_len + 1);
 619         if (network->identifier == NULL)
 620                 return;
 621
 622         memcpy(network->identifier, ssid, ssid_len);
 623 }
 624
 625 static void extract_wpaie(struct supplicant_network *network,
 626                                                 DBusMessageIter *value)
 627 {
 628         DBusMessageIter array;
 629         unsigned char *ie;
 630         int ie_len;
 631
 632         dbus_message_iter_recurse(value, &array);
 633         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 634
 635         if (ie_len > 0)
 636                 network->has_wpa = TRUE;
 637 }
 638
 639 static void extract_rsnie(struct supplicant_network *network,
 640                                                 DBusMessageIter *value)
 641 {
 642         DBusMessageIter array;
 643         unsigned char *ie;
 644         int ie_len;
 645
 646         dbus_message_iter_recurse(value, &array);
 647         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
 648
 649         if (ie_len > 0)
 650                 network->has_rsn = TRUE;
 651 }
 652
 653 static void extract_capabilites(struct supplicant_network *network,
 654                                                 DBusMessageIter *value)
 655 {
 656         dbus_message_iter_get_basic(value, &network->capabilities);
 657
 658         if (network->capabilities & IEEE80211_CAP_PRIVACY)
 659                 network->has_wep = TRUE;
 660 }
 661
 662 static void properties_reply(DBusPendingCall *call, void *user_data)
 663 {
 664         struct supplicant_task *task = user_data;
 665         struct supplicant_network *network;
 666         DBusMessage *reply;
 667         DBusMessageIter array, dict;
 668
 669         DBG("task %p", task);
 670
 671         reply = dbus_pending_call_steal_reply(call);
 672
 673         network = g_try_new0(struct supplicant_network, 1);
 674         if (network == NULL)
 675                 goto done;
 676
 677         dbus_message_iter_init(reply, &array);
 678
 679         dbus_message_iter_recurse(&array, &dict);
 680
 681         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
 682                 DBusMessageIter entry, value;
 683                 const char *key;
 684
 685                 dbus_message_iter_recurse(&dict, &entry);
 686                 dbus_message_iter_get_basic(&entry, &key);
 687
 688                 dbus_message_iter_next(&entry);
 689
 690                 dbus_message_iter_recurse(&entry, &value);
 691
 692                 //type = dbus_message_iter_get_arg_type(&value);
 693                 //dbus_message_iter_get_basic(&value, &val);
 694
 695                 /*
 696                  * bssid        : a (97)
 697                  * ssid         : a (97)
 698                  * wpaie        : a (97)
 699                  * rsnie        : a (97)
 700                  * frequency    : i (105)
 701                  * capabilities : q (113)
 702                  * quality      : i (105)
 703                  * noise        : i (105)
 704                  * level        : i (105)
 705                  * maxrate      : i (105)
 706                  */
 707
 708                 if (g_str_equal(key, "ssid") == TRUE)
 709                         extract_ssid(network, &value);
 710                 else if (g_str_equal(key, "wpaie") == TRUE)
 711                         extract_wpaie(network, &value);
 712                 else if (g_str_equal(key, "rsnie") == TRUE)
 713                         extract_rsnie(network, &value);
 714                 else if (g_str_equal(key, "capabilities") == TRUE)
 715                         extract_capabilites(network, &value);
 716                 else if (g_str_equal(key, "quality") == TRUE)
 717                         dbus_message_iter_get_basic(&value, &network->quality);
 718                 else if (g_str_equal(key, "noise") == TRUE)
 719                         dbus_message_iter_get_basic(&value, &network->noise);
 720                 else if (g_str_equal(key, "level") == TRUE)
 721                         dbus_message_iter_get_basic(&value, &network->level);
 722                 else if (g_str_equal(key, "maxrate") == TRUE)
 723                         dbus_message_iter_get_basic(&value, &network->maxrate);
 724
 725
 726                 dbus_message_iter_next(&dict);
 727         }
 728
 729         if (task->callback && task->callback->scan_result)
 730                 task->callback->scan_result(task->element, network);
 731
 732         g_free(network->identifier);
 733         g_free(network->ssid);
 734         g_free(network);
 735
 736 done:
 737         dbus_message_unref(reply);
 738 }
 739
 740 static int get_network_properties(struct supplicant_task *task,
 741                                                         const char *path)
 742 {
 743         DBusMessage *message;
 744         DBusPendingCall *call;
 745
 746         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
 747                                                 SUPPLICANT_INTF ".BSSID",
 748                                                                 "properties");
 749         if (message == NULL)
 750                 return -ENOMEM;
 751
 752         if (dbus_connection_send_with_reply(connection, message,
 753                                                 &call, TIMEOUT) == FALSE) {
 754                 connman_error("Failed to get network properties");
 755                 dbus_message_unref(message);
 756                 return -EIO;
 757         }
 758
 759         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
 760
 761         dbus_message_unref(message);
 762
 763         return 0;
 764 }
 765
 766 static void scan_results_reply(DBusPendingCall *call, void *user_data)
 767 {
 768         struct supplicant_task *task = user_data;
 769         DBusMessage *reply;
 770         DBusError error;
 771         char **results;
 772         int i, num_results;
 773
 774         DBG("task %p", task);
 775
 776         reply = dbus_pending_call_steal_reply(call);
 777
 778         dbus_error_init(&error);
 779
 780         if (dbus_message_get_args(reply, &error,
 781                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
 782                                                 &results, &num_results,
 783                                                 DBUS_TYPE_INVALID) == FALSE) {
 784                 if (dbus_error_is_set(&error) == TRUE) {
 785                         connman_error("%s", error.message);
 786                         dbus_error_free(&error);
 787                 } else
 788                         connman_error("Wrong arguments for scan result");
 789                 goto done;
 790         }
 791
 792         if (task->callback && task->callback->clear_results)
 793                         task->callback->clear_results(task->element);
 794
 795         for (i = 0; i < num_results; i++)
 796                 get_network_properties(task, results[i]);
 797
 798         g_strfreev(results);
 799
 800 done:
 801         dbus_message_unref(reply);
 802 }
 803
 804 static int scan_results_available(struct supplicant_task *task)
 805 {
 806         DBusMessage *message;
 807         DBusPendingCall *call;
 808
 809         DBG("task %p", task);
 810
 811         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 812                                                 SUPPLICANT_INTF ".Interface",
 813                                                         "scanResults");
 814         if (message == NULL)
 815                 return -ENOMEM;
 816
 817         if (dbus_connection_send_with_reply(connection, message,
 818                                                 &call, TIMEOUT) == FALSE) {
 819                 connman_error("Failed to request scan result");
 820                 dbus_message_unref(message);
 821                 return -EIO;
 822         }
 823
 824         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
 825
 826         dbus_message_unref(message);
 827
 828         return 0;
 829 }
 830
 831 static void state_change(struct supplicant_task *task, DBusMessage *msg)
 832 {
 833         DBusError error;
 834         const char *state, *previous;
 835
 836         dbus_error_init(&error);
 837
 838         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &state,
 839                                                 DBUS_TYPE_STRING, &previous,
 840                                                 DBUS_TYPE_INVALID) == FALSE) {
 841                 if (dbus_error_is_set(&error) == TRUE) {
 842                         connman_error("%s", error.message);
 843                         dbus_error_free(&error);
 844                 } else
 845                         connman_error("Wrong arguments for state change");
 846                 return;
 847         }
 848
 849         DBG("state %s ==> %s", previous, state);
 850
 851         if (g_str_equal(state, "INACTIVE") == TRUE)
 852                 task->state = STATE_INACTIVE;
 853         else if (g_str_equal(state, "SCANNING") == TRUE)
 854                 task->state = STATE_SCANNING;
 855         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
 856                 task->state = STATE_ASSOCIATING;
 857         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
 858                 task->state = STATE_ASSOCIATED;
 859         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
 860                 task->state = STATE_4WAY_HANDSHAKE;
 861         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
 862                 task->state = STATE_4WAY_HANDSHAKE;
 863         else if (g_str_equal(state, "COMPLETED") == TRUE)
 864                 task->state = STATE_COMPLETED;
 865         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
 866                 task->state = STATE_DISCONNECTED;
 867
 868         if (task->callback && task->callback->state_change)
 869                 task->callback->state_change(task->element, task->state);
 870
 871         switch (task->state) {
 872         case STATE_COMPLETED:
 873                 /* carrier on */
 874                 break;
 875         case STATE_DISCONNECTED:
 876                 /* carrier off */
 877                 break;
 878         default:
 879                 break;
 880         }
 881 }
 882
 883 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
 884                                                 DBusMessage *msg, void *data)
 885 {
 886         struct supplicant_task *task;
 887         const char *member, *path;
 888
 889         if (dbus_message_has_interface(msg,
 890                                 SUPPLICANT_INTF ".Interface") == FALSE)
 891                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 892
 893         member = dbus_message_get_member(msg);
 894         if (member == NULL)
 895                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 896
 897         path = dbus_message_get_path(msg);
 898         if (path == NULL)
 899                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 900
 901         task = find_task_by_path(path);
 902         if (task == NULL)
 903                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 904
 905         DBG("task %p member %s", task, member);
 906
 907         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
 908                 scan_results_available(task);
 909         else if (g_str_equal(member, "StateChange") == TRUE)
 910                 state_change(task, msg);
 911
 912         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 913 }
 914
 915 static int add_filter(struct supplicant_task *task)
 916 {
 917         DBusError error;
 918         gchar *filter;
 919
 920         filter = g_strdup_printf("type=signal,interface=%s.Interface,path=%s",
 921                                                 SUPPLICANT_INTF, task->path);
 922
 923         DBG("filter %s", filter);
 924
 925         dbus_error_init(&error);
 926
 927         dbus_bus_add_match(connection, filter, &error);
 928
 929         g_free(filter);
 930
 931         if (dbus_error_is_set(&error) == TRUE) {
 932                 connman_error("Can't add match: %s", error.message);
 933                 dbus_error_free(&error);
 934         }
 935
 936         return 0;
 937 }
 938
 939 static int remove_filter(struct supplicant_task *task)
 940 {
 941         DBusError error;
 942         gchar *filter;
 943
 944         filter = g_strdup_printf("type=signal,interface=%s.Interface,path=%s",
 945                                                 SUPPLICANT_INTF, task->path);
 946
 947         DBG("filter %s", filter);
 948
 949         dbus_error_init(&error);
 950
 951         dbus_bus_remove_match(connection, filter, &error);
 952
 953         g_free(filter);
 954
 955         if (dbus_error_is_set(&error) == TRUE) {
 956                 connman_error("Can't add match: %s", error.message);
 957                 dbus_error_free(&error);
 958         }
 959
 960         return 0;
 961 }
 962
 963 int __supplicant_start(struct connman_element *element,
 964                                         struct supplicant_callback *callback)
 965 {
 966         struct supplicant_task *task;
 967         int err;
 968
 969         DBG("element %p name %s", element, element->name);
 970
 971         task = g_try_new0(struct supplicant_task, 1);
 972         if (task == NULL)
 973                 return -ENOMEM;
 974
 975         task->ifindex = element->index;
 976         task->ifname = inet_index2name(element->index);
 977         task->element = element;
 978         task->callback = callback;
 979
 980         if (task->ifname == NULL) {
 981                 g_free(task);
 982                 return -ENOMEM;
 983         }
 984
 985         task->created = FALSE;
 986         task->state = STATE_INACTIVE;
 987
 988         task_list = g_slist_append(task_list, task);
 989
 990         err = get_interface(task);
 991         if (err < 0) {
 992                 err = add_interface(task);
 993                 if (err < 0) {
 994                         g_free(task);
 995                         return err;
 996                 }
 997         }
 998
 999         add_filter(task);
1000
1001         set_ap_scan(task);
1002
1003         return 0;
1004 }
1005
1006 int __supplicant_stop(struct connman_element *element)
1007 {
1008         struct supplicant_task *task;
1009
1010         DBG("element %p name %s", element, element->name);
1011
1012         task = find_task_by_index(element->index);
1013         if (task == NULL)
1014                 return -ENODEV;
1015
1016         task_list = g_slist_remove(task_list, task);
1017
1018         disable_network(task);
1019
1020         remove_network(task);
1021
1022         remove_filter(task);
1023
1024         remove_interface(task);
1025
1026         g_free(task->ifname);
1027         g_free(task->path);
1028         g_free(task);
1029
1030         return 0;
1031 }
1032
1033 int __supplicant_scan(struct connman_element *element)
1034 {
1035         struct supplicant_task *task;
1036         int err;
1037
1038         DBG("element %p name %s", element, element->name);
1039
1040         task = find_task_by_index(element->index);
1041         if (task == NULL)
1042                 return -ENODEV;
1043
1044         switch (task->state) {
1045         case STATE_SCANNING:
1046                 return -EALREADY;
1047         case STATE_ASSOCIATING:
1048         case STATE_ASSOCIATED:
1049         case STATE_4WAY_HANDSHAKE:
1050         case STATE_GROUP_HANDSHAKE:
1051                 return -EBUSY;
1052         default:
1053                 break;
1054         }
1055
1056         err = initiate_scan(task);
1057
1058         return 0;
1059 }
1060
1061 int __supplicant_connect(struct connman_element *element,
1062                                 const unsigned char *ssid, int ssid_len,
1063                                 const char *security, const char *passphrase)
1064 {
1065         struct supplicant_task *task;
1066
1067         DBG("element %p name %s", element, element->name);
1068
1069         task = find_task_by_index(element->index);
1070         if (task == NULL)
1071                 return -ENODEV;
1072
1073         add_network(task);
1074
1075         select_network(task);
1076         disable_network(task);
1077
1078         set_network(task, ssid, ssid_len, security, passphrase);
1079
1080         enable_network(task);
1081
1082         return 0;
1083 }
1084
1085 int __supplicant_disconnect(struct connman_element *element)
1086 {
1087         struct supplicant_task *task;
1088
1089         DBG("element %p name %s", element, element->name);
1090
1091         task = find_task_by_index(element->index);
1092         if (task == NULL)
1093                 return -ENODEV;
1094
1095         disable_network(task);
1096
1097         remove_network(task);
1098
1099         return 0;
1100 }
1101
1102 int __supplicant_init(DBusConnection *conn)
1103 {
1104         connection = conn;
1105
1106         if (dbus_connection_add_filter(connection,
1107                                 supplicant_filter, NULL, NULL) == FALSE) {
1108                 dbus_connection_unref(connection);
1109                 return -EIO;
1110         }
1111
1112         return 0;
1113 }
1114
1115 void __supplicant_exit(void)
1116 {
1117         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1118 }