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 <unistd.h>
  28 #include <errno.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <sys/ioctl.h>
  32 #include <sys/socket.h>
  33 #include <linux/if_arp.h>
  34 #include <linux/wireless.h>
  35 #include <net/ethernet.h>
  36
  37 #include <gdbus.h>
  38
  39 #define CONNMAN_API_SUBJECT_TO_CHANGE
  40 #include <connman/device.h>
  41 #include <connman/option.h>
  42 #include <connman/inet.h>
  43 #include <connman/dbus.h>
  44 #include <connman/log.h>
  45
  46 #include "supplicant.h"
  47
  48 #define TIMEOUT 5000
  49
  50 #define IEEE80211_CAP_ESS       0x0001
  51 #define IEEE80211_CAP_IBSS      0x0002
  52 #define IEEE80211_CAP_PRIVACY   0x0010
  53
  54 #define SUPPLICANT_NAME  "fi.epitest.hostap.WPASupplicant"
  55 #define SUPPLICANT_INTF  "fi.epitest.hostap.WPASupplicant"
  56 #define SUPPLICANT_PATH  "/fi/epitest/hostap/WPASupplicant"
  57
  58 /* Taken from "WPA Supplicant - Common definitions" */
  59 enum supplicant_state {
  60         /**
  61          * WPA_DISCONNECTED - Disconnected state
  62          *
  63          * This state indicates that client is not associated, but is likely to
  64          * start looking for an access point. This state is entered when a
  65          * connection is lost.
  66          */
  67         WPA_DISCONNECTED,
  68
  69         /**
  70          * WPA_INACTIVE - Inactive state (wpa_supplicant disabled)
  71          *
  72          * This state is entered if there are no enabled networks in the
  73          * configuration. wpa_supplicant is not trying to associate with a new
  74          * network and external interaction (e.g., ctrl_iface call to add or
  75          * enable a network) is needed to start association.
  76          */
  77         WPA_INACTIVE,
  78
  79         /**
  80          * WPA_SCANNING - Scanning for a network
  81          *
  82          * This state is entered when wpa_supplicant starts scanning for a
  83          * network.
  84          */
  85         WPA_SCANNING,
  86
  87         /**
  88          * WPA_ASSOCIATING - Trying to associate with a BSS/SSID
  89          *
  90          * This state is entered when wpa_supplicant has found a suitable BSS
  91          * to associate with and the driver is configured to try to associate
  92          * with this BSS in ap_scan=1 mode. When using ap_scan=2 mode, this
  93          * state is entered when the driver is configured to try to associate
  94          * with a network using the configured SSID and security policy.
  95          */
  96         WPA_ASSOCIATING,
  97
  98         /**
  99          * WPA_ASSOCIATED - Association completed
 100          *
 101          * This state is entered when the driver reports that association has
 102          * been successfully completed with an AP. If IEEE 802.1X is used
 103          * (with or without WPA/WPA2), wpa_supplicant remains in this state
 104          * until the IEEE 802.1X/EAPOL authentication has been completed.
 105          */
 106         WPA_ASSOCIATED,
 107
 108         /**
 109          * WPA_4WAY_HANDSHAKE - WPA 4-Way Key Handshake in progress
 110          *
 111          * This state is entered when WPA/WPA2 4-Way Handshake is started. In
 112          * case of WPA-PSK, this happens when receiving the first EAPOL-Key
 113          * frame after association. In case of WPA-EAP, this state is entered
 114          * when the IEEE 802.1X/EAPOL authentication has been completed.
 115          */
 116         WPA_4WAY_HANDSHAKE,
 117
 118         /**
 119          * WPA_GROUP_HANDSHAKE - WPA Group Key Handshake in progress
 120          *
 121          * This state is entered when 4-Way Key Handshake has been completed
 122          * (i.e., when the supplicant sends out message 4/4) and when Group
 123          * Key rekeying is started by the AP (i.e., when supplicant receives
 124          * message 1/2).
 125          */
 126         WPA_GROUP_HANDSHAKE,
 127
 128         /**
 129          * WPA_COMPLETED - All authentication completed
 130          *
 131          * This state is entered when the full authentication process is
 132          * completed. In case of WPA2, this happens when the 4-Way Handshake is
 133          * successfully completed. With WPA, this state is entered after the
 134          * Group Key Handshake; with IEEE 802.1X (non-WPA) connection is
 135          * completed after dynamic keys are received (or if not used, after
 136          * the EAP authentication has been completed). With static WEP keys and
 137          * plaintext connections, this state is entered when an association
 138          * has been completed.
 139          *
 140          * This state indicates that the supplicant has completed its
 141          * processing for the association phase and that data connection is
 142          * fully configured.
 143          */
 144         WPA_COMPLETED,
 145
 146         /**
 147          * WPA_INVALID - Invalid state (parsing error)
 148          *
 149          * This state is returned if the string input is invalid. It is not
 150          * an official wpa_supplicant state.
 151          */
 152         WPA_INVALID,
 153 };
 154
 155 struct supplicant_result {
 156         char *path;
 157         char *name;
 158         unsigned char *addr;
 159         unsigned int addr_len;
 160         unsigned char *ssid;
 161         unsigned int ssid_len;
 162         dbus_uint16_t capabilities;
 163         gboolean adhoc;
 164         gboolean has_wep;
 165         gboolean has_wpa;
 166         gboolean has_rsn;
 167         gboolean has_wps;
 168         dbus_int32_t frequency;
 169         dbus_int32_t quality;
 170         dbus_int32_t noise;
 171         dbus_int32_t level;
 172         dbus_int32_t maxrate;
 173 };
 174
 175 struct supplicant_task {
 176         int ifindex;
 177         char *ifname;
 178         struct connman_device *device;
 179         struct connman_network *network;
 180         struct connman_network *pending_network;
 181         char *path;
 182         char *netpath;
 183         gboolean created;
 184         enum supplicant_state state;
 185         gboolean noscan;
 186         GSList *scan_results;
 187         struct iw_range *range;
 188         gboolean connecting;
 189         gboolean disconnecting;
 190 };
 191
 192 static GSList *task_list = NULL;
 193
 194 static DBusConnection *connection;
 195
 196 static void free_task(struct supplicant_task *task)
 197 {
 198         DBG("task %p", task);
 199
 200         g_free(task->ifname);
 201         g_free(task->path);
 202         g_free(task);
 203 }
 204
 205 static struct supplicant_task *find_task_by_index(int index)
 206 {
 207         GSList *list;
 208
 209         for (list = task_list; list; list = list->next) {
 210                 struct supplicant_task *task = list->data;
 211
 212                 if (task->ifindex == index)
 213                         return task;
 214         }
 215
 216         return NULL;
 217 }
 218
 219 static struct supplicant_task *find_task_by_path(const char *path)
 220 {
 221         GSList *list;
 222
 223         for (list = task_list; list; list = list->next) {
 224                 struct supplicant_task *task = list->data;
 225
 226                 if (g_strcmp0(task->path, path) == 0)
 227                         return task;
 228         }
 229
 230         return NULL;
 231 }
 232
 233 static int get_range(struct supplicant_task *task)
 234 {
 235         struct iwreq wrq;
 236         int fd, err;
 237
 238         fd = socket(PF_INET, SOCK_DGRAM, 0);
 239         if (fd < 0)
 240                 return -1;
 241
 242         memset(&wrq, 0, sizeof(struct iwreq));
 243         strncpy(wrq.ifr_name, task->ifname, IFNAMSIZ);
 244         wrq.u.data.pointer = task->range;
 245         wrq.u.data.length = sizeof(struct iw_range);
 246
 247         err = ioctl(fd, SIOCGIWRANGE, &wrq);
 248
 249         close(fd);
 250
 251         return err;
 252 }
 253
 254 static char *get_bssid(struct connman_device *device)
 255 {
 256         char *bssid;
 257         unsigned char ioctl_bssid[ETH_ALEN];
 258         int ifindex;
 259         char *ifname;
 260         struct iwreq wrq;
 261         int fd, err;
 262
 263         ifindex = connman_device_get_index(device);
 264         if (ifindex < 0)
 265                 return NULL;
 266
 267         ifname = connman_inet_ifname(ifindex);
 268         if (ifname == NULL)
 269                 return NULL;
 270
 271         fd = socket(PF_INET, SOCK_DGRAM, 0);
 272         if (fd < 0) {
 273                 g_free(ifname);
 274                 return NULL;
 275         }
 276
 277         memset(&wrq, 0, sizeof(wrq));
 278         strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
 279
 280         err = ioctl(fd, SIOCGIWAP, &wrq);
 281
 282         g_free(ifname);
 283         close(fd);
 284
 285         if (err < 0)
 286                 return NULL;
 287
 288         memcpy(ioctl_bssid, wrq.u.ap_addr.sa_data, ETH_ALEN);
 289
 290         bssid = g_try_malloc0(13);
 291         if (bssid == NULL)
 292                 return NULL;
 293
 294         snprintf(bssid, 13, "%02x%02x%02x%02x%02x%02x",
 295                                         ioctl_bssid[0], ioctl_bssid[1],
 296                                         ioctl_bssid[2], ioctl_bssid[3],
 297                                         ioctl_bssid[4], ioctl_bssid[5]);
 298
 299         return bssid;
 300 }
 301
 302 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 303 {
 304         struct supplicant_task *task = user_data;
 305         DBusMessage *reply;
 306         DBusError error;
 307         const char *path;
 308
 309         DBG("task %p", task);
 310
 311         reply = dbus_pending_call_steal_reply(call);
 312         if (reply == NULL)
 313                 return;
 314
 315         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 316                 goto failed;
 317
 318         dbus_error_init(&error);
 319
 320         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 321                                                 DBUS_TYPE_INVALID) == FALSE) {
 322                 if (dbus_error_is_set(&error) == TRUE) {
 323                         connman_error("%s", error.message);
 324                         dbus_error_free(&error);
 325                 } else
 326                         connman_error("Wrong arguments for add interface");
 327                 goto failed;
 328         }
 329
 330         DBG("path %s", path);
 331
 332         task->path = g_strdup(path);
 333         task->created = TRUE;
 334
 335         connman_device_set_powered(task->device, TRUE);
 336
 337         dbus_message_unref(reply);
 338
 339         return;
 340
 341 failed:
 342         task_list = g_slist_remove(task_list, task);
 343
 344         connman_device_unref(task->device);
 345
 346         free_task(task);
 347 }
 348
 349 static int add_interface(struct supplicant_task *task)
 350 {
 351         const char *driver = connman_option_get_string("wifi");
 352         DBusMessage *message;
 353         DBusMessageIter array, dict;
 354         DBusPendingCall *call;
 355
 356         DBG("task %p", task);
 357
 358         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 359                                         SUPPLICANT_INTF, "addInterface");
 360         if (message == NULL)
 361                 return -ENOMEM;
 362
 363         dbus_message_iter_init_append(message, &array);
 364
 365         dbus_message_iter_append_basic(&array,
 366                                         DBUS_TYPE_STRING, &task->ifname);
 367
 368         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 369                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 370                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 371                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 372
 373         connman_dbus_dict_append_variant(&dict, "driver",
 374                                                 DBUS_TYPE_STRING, &driver);
 375
 376         dbus_message_iter_close_container(&array, &dict);
 377
 378         if (dbus_connection_send_with_reply(connection, message,
 379                                                 &call, TIMEOUT) == FALSE) {
 380                 connman_error("Failed to add interface");
 381                 dbus_message_unref(message);
 382                 return -EIO;
 383         }
 384
 385         if (call == NULL) {
 386                 connman_error("D-Bus connection not available");
 387                 dbus_message_unref(message);
 388                 return -EIO;
 389         }
 390
 391         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 392
 393         dbus_message_unref(message);
 394
 395         return -EINPROGRESS;
 396 }
 397
 398 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 399 {
 400         struct supplicant_task *task = user_data;
 401         DBusMessage *reply;
 402         DBusError error;
 403         const char *path;
 404
 405         DBG("task %p", task);
 406
 407         reply = dbus_pending_call_steal_reply(call);
 408         if (reply == NULL)
 409                 return;
 410
 411         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 412                 add_interface(task);
 413                 goto done;
 414         }
 415
 416         dbus_error_init(&error);
 417
 418         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 419                                                 DBUS_TYPE_INVALID) == FALSE) {
 420                 if (dbus_error_is_set(&error) == TRUE) {
 421                         connman_error("%s", error.message);
 422                         dbus_error_free(&error);
 423                 } else
 424                         connman_error("Wrong arguments for get interface");
 425                 goto done;
 426         }
 427
 428         DBG("path %s", path);
 429
 430         task->path = g_strdup(path);
 431         task->created = FALSE;
 432
 433         connman_device_set_powered(task->device, TRUE);
 434
 435 done:
 436         dbus_message_unref(reply);
 437 }
 438
 439 static int create_interface(struct supplicant_task *task)
 440 {
 441         DBusMessage *message;
 442         DBusPendingCall *call;
 443
 444         DBG("task %p", task);
 445
 446         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 447                                         SUPPLICANT_INTF, "getInterface");
 448         if (message == NULL)
 449                 return -ENOMEM;
 450
 451         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 452                                                         DBUS_TYPE_INVALID);
 453
 454         if (dbus_connection_send_with_reply(connection, message,
 455                                                 &call, TIMEOUT) == FALSE) {
 456                 connman_error("Failed to get interface");
 457                 dbus_message_unref(message);
 458                 return -EIO;
 459         }
 460
 461         if (call == NULL) {
 462                 connman_error("D-Bus connection not available");
 463                 dbus_message_unref(message);
 464                 return -EIO;
 465         }
 466
 467         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 468
 469         dbus_message_unref(message);
 470
 471         return -EINPROGRESS;
 472 }
 473
 474 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 475 {
 476         struct supplicant_task *task = user_data;
 477         DBusMessage *reply;
 478
 479         DBG("task %p", task);
 480
 481         reply = dbus_pending_call_steal_reply(call);
 482
 483         connman_device_set_powered(task->device, FALSE);
 484
 485         connman_device_unref(task->device);
 486
 487         connman_inet_ifdown(task->ifindex);
 488
 489         free_task(task);
 490
 491         dbus_message_unref(reply);
 492 }
 493
 494 static int remove_interface(struct supplicant_task *task)
 495 {
 496         DBusMessage *message;
 497         DBusPendingCall *call;
 498
 499         DBG("task %p", task);
 500
 501         if (task->created == FALSE) {
 502                 connman_device_set_powered(task->device, FALSE);
 503                 return 0;
 504         }
 505
 506         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 507                                         SUPPLICANT_INTF, "removeInterface");
 508         if (message == NULL)
 509                 return -ENOMEM;
 510
 511         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 512                                                         DBUS_TYPE_INVALID);
 513
 514         if (dbus_connection_send_with_reply(connection, message,
 515                                                 &call, TIMEOUT) == FALSE) {
 516                 connman_error("Failed to remove interface");
 517                 dbus_message_unref(message);
 518                 return -EIO;
 519         }
 520
 521         if (call == NULL) {
 522                 connman_error("D-Bus connection not available");
 523                 dbus_message_unref(message);
 524                 return -EIO;
 525         }
 526
 527         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 528
 529         dbus_message_unref(message);
 530
 531         return -EINPROGRESS;
 532 }
 533
 534 #if 0
 535 static int set_ap_scan(struct supplicant_task *task)
 536 {
 537         DBusMessage *message, *reply;
 538         DBusError error;
 539         guint32 ap_scan = 1;
 540
 541         DBG("task %p", task);
 542
 543         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 544                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 545         if (message == NULL)
 546                 return -ENOMEM;
 547
 548         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 549                                                         DBUS_TYPE_INVALID);
 550
 551         dbus_error_init(&error);
 552
 553         reply = dbus_connection_send_with_reply_and_block(connection,
 554                                                         message, -1, &error);
 555         if (reply == NULL) {
 556                 if (dbus_error_is_set(&error) == TRUE) {
 557                         connman_error("%s", error.message);
 558                         dbus_error_free(&error);
 559                 } else
 560                         connman_error("Failed to set AP scan");
 561                 dbus_message_unref(message);
 562                 return -EIO;
 563         }
 564
 565         dbus_message_unref(message);
 566
 567         dbus_message_unref(reply);
 568
 569         return 0;
 570 }
 571 #endif
 572
 573 static int add_network(struct supplicant_task *task)
 574 {
 575         DBusMessage *message, *reply;
 576         DBusError error;
 577         const char *path;
 578
 579         DBG("task %p", task);
 580
 581         if (task->netpath != NULL)
 582                 return -EALREADY;
 583
 584         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 585                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 586         if (message == NULL)
 587                 return -ENOMEM;
 588
 589         dbus_error_init(&error);
 590
 591         reply = dbus_connection_send_with_reply_and_block(connection,
 592                                                         message, -1, &error);
 593         if (reply == NULL) {
 594                 if (dbus_error_is_set(&error) == TRUE) {
 595                         connman_error("%s", error.message);
 596                         dbus_error_free(&error);
 597                 } else
 598                         connman_error("Failed to add network");
 599                 dbus_message_unref(message);
 600                 return -EIO;
 601         }
 602
 603         dbus_message_unref(message);
 604
 605         dbus_error_init(&error);
 606
 607         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 608                                                 DBUS_TYPE_INVALID) == FALSE) {
 609                 if (dbus_error_is_set(&error) == TRUE) {
 610                         connman_error("%s", error.message);
 611                         dbus_error_free(&error);
 612                 } else
 613                         connman_error("Wrong arguments for network");
 614                 dbus_message_unref(reply);
 615                 return -EIO;
 616         }
 617
 618         DBG("path %s", path);
 619
 620         task->netpath = g_strdup(path);
 621
 622         dbus_message_unref(reply);
 623
 624         return 0;
 625 }
 626
 627 static int remove_network(struct supplicant_task *task)
 628 {
 629         DBusMessage *message, *reply;
 630         DBusError error;
 631
 632         DBG("task %p", task);
 633
 634         if (task->netpath == NULL)
 635                 return -EINVAL;
 636
 637         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 638                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 639         if (message == NULL)
 640                 return -ENOMEM;
 641
 642         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 643                                                         DBUS_TYPE_INVALID);
 644
 645         dbus_error_init(&error);
 646
 647         reply = dbus_connection_send_with_reply_and_block(connection,
 648                                                         message, -1, &error);
 649         if (reply == NULL) {
 650                 if (dbus_error_is_set(&error) == TRUE) {
 651                         connman_error("%s", error.message);
 652                         dbus_error_free(&error);
 653                 } else
 654                         connman_error("Failed to remove network");
 655                 dbus_message_unref(message);
 656                 return -EIO;
 657         }
 658
 659         dbus_message_unref(message);
 660
 661         dbus_message_unref(reply);
 662
 663         g_free(task->netpath);
 664         task->netpath = NULL;
 665
 666         return 0;
 667 }
 668
 669 static int select_network(struct supplicant_task *task)
 670 {
 671         DBusMessage *message, *reply;
 672         DBusError error;
 673
 674         DBG("task %p", task);
 675
 676         if (task->netpath == NULL)
 677                 return -EINVAL;
 678
 679         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 680                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 681         if (message == NULL)
 682                 return -ENOMEM;
 683
 684         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 685                                                         DBUS_TYPE_INVALID);
 686
 687         dbus_error_init(&error);
 688
 689         reply = dbus_connection_send_with_reply_and_block(connection,
 690                                                         message, -1, &error);
 691         if (reply == NULL) {
 692                 if (dbus_error_is_set(&error) == TRUE) {
 693                         connman_error("%s", error.message);
 694                         dbus_error_free(&error);
 695                 } else
 696                         connman_error("Failed to select network");
 697                 dbus_message_unref(message);
 698                 return -EIO;
 699         }
 700
 701         dbus_message_unref(message);
 702
 703         dbus_message_unref(reply);
 704
 705         return 0;
 706 }
 707
 708 static int enable_network(struct supplicant_task *task)
 709 {
 710         DBusMessage *message, *reply;
 711         DBusError error;
 712
 713         DBG("task %p", task);
 714
 715         if (task->netpath == NULL)
 716                 return -EINVAL;
 717
 718         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 719                                         SUPPLICANT_INTF ".Network", "enable");
 720         if (message == NULL)
 721                 return -ENOMEM;
 722
 723         dbus_error_init(&error);
 724
 725         reply = dbus_connection_send_with_reply_and_block(connection,
 726                                                         message, -1, &error);
 727         if (reply == NULL) {
 728                 if (dbus_error_is_set(&error) == TRUE) {
 729                         connman_error("%s", error.message);
 730                         dbus_error_free(&error);
 731                 } else
 732                         connman_error("Failed to enable network");
 733                 dbus_message_unref(message);
 734                 return -EIO;
 735         }
 736
 737         dbus_message_unref(message);
 738
 739         dbus_message_unref(reply);
 740
 741         return 0;
 742 }
 743
 744 static int disable_network(struct supplicant_task *task)
 745 {
 746         DBusMessage *message, *reply;
 747         DBusError error;
 748
 749         DBG("task %p", task);
 750
 751         if (task->netpath == NULL)
 752                 return -EINVAL;
 753
 754         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 755                                         SUPPLICANT_INTF ".Network", "disable");
 756         if (message == NULL)
 757                 return -ENOMEM;
 758
 759         dbus_error_init(&error);
 760
 761         reply = dbus_connection_send_with_reply_and_block(connection,
 762                                                         message, -1, &error);
 763         if (reply == NULL) {
 764                 if (dbus_error_is_set(&error) == TRUE) {
 765                         connman_error("%s", error.message);
 766                         dbus_error_free(&error);
 767                 } else
 768                         connman_error("Failed to disable network");
 769                 dbus_message_unref(message);
 770                 return -EIO;
 771         }
 772
 773         dbus_message_unref(message);
 774
 775         dbus_message_unref(reply);
 776
 777         return 0;
 778 }
 779
 780 static int set_network(struct supplicant_task *task,
 781                                 const unsigned char *network, int len,
 782                                 const char *address, const char *security,
 783                                                         const char *passphrase)
 784 {
 785         DBusMessage *message, *reply;
 786         DBusMessageIter array, dict;
 787         DBusError error;
 788         dbus_uint32_t scan_ssid = 1;
 789
 790         DBG("task %p", task);
 791
 792         if (task->netpath == NULL)
 793                 return -EINVAL;
 794
 795         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 796                                         SUPPLICANT_INTF ".Network", "set");
 797         if (message == NULL)
 798                 return -ENOMEM;
 799
 800         dbus_message_iter_init_append(message, &array);
 801
 802         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 803                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 804                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 805                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 806
 807         connman_dbus_dict_append_variant(&dict, "scan_ssid",
 808                                          DBUS_TYPE_UINT32, &scan_ssid);
 809
 810         if (address)
 811                 connman_dbus_dict_append_variant(&dict, "bssid",
 812                                                 DBUS_TYPE_STRING, &address);
 813
 814         connman_dbus_dict_append_array(&dict, "ssid",
 815                                         DBUS_TYPE_BYTE, &network, len);
 816
 817         if (g_ascii_strcasecmp(security, "wpa") == 0 ||
 818                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 819                 const char *key_mgmt = "WPA-PSK";
 820                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 821                                                 DBUS_TYPE_STRING, &key_mgmt);
 822
 823                 if (passphrase && strlen(passphrase) > 0)
 824                         connman_dbus_dict_append_variant(&dict, "psk",
 825                                                 DBUS_TYPE_STRING, &passphrase);
 826         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 827                 const char *key_mgmt = "NONE";
 828                 const char *auth_alg = "OPEN SHARED";
 829                 const char *key_index = "0";
 830
 831                 connman_dbus_dict_append_variant(&dict, "auth_alg",
 832                                                 DBUS_TYPE_STRING, &auth_alg);
 833
 834                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 835                                                 DBUS_TYPE_STRING, &key_mgmt);
 836
 837                 if (passphrase) {
 838                         int size = strlen(passphrase);
 839                         if (size == 10 || size == 26) {
 840                                 unsigned char *key = malloc(13);
 841                                 char tmp[3];
 842                                 int i;
 843                                 memset(tmp, 0, sizeof(tmp));
 844                                 if (key == NULL)
 845                                         size = 0;
 846                                 for (i = 0; i < size / 2; i++) {
 847                                         memcpy(tmp, passphrase + (i * 2), 2);
 848                                         key[i] = (unsigned char) strtol(tmp,
 849                                                                 NULL, 16);
 850                                 }
 851                                 connman_dbus_dict_append_array(&dict,
 852                                                 "wep_key0", DBUS_TYPE_BYTE,
 853                                                         &key, size / 2);
 854                                 free(key);
 855                         } else
 856                                 connman_dbus_dict_append_variant(&dict,
 857                                                 "wep_key0", DBUS_TYPE_STRING,
 858                                                                 &passphrase);
 859
 860                         connman_dbus_dict_append_variant(&dict, "wep_tx_keyidx",
 861                                                 DBUS_TYPE_STRING, &key_index);
 862                 }
 863         } else {
 864                 const char *key_mgmt = "NONE";
 865                 connman_dbus_dict_append_variant(&dict, "key_mgmt",
 866                                                 DBUS_TYPE_STRING, &key_mgmt);
 867         }
 868
 869         dbus_message_iter_close_container(&array, &dict);
 870
 871         dbus_error_init(&error);
 872
 873         reply = dbus_connection_send_with_reply_and_block(connection,
 874                                                         message, -1, &error);
 875         if (reply == NULL) {
 876                 if (dbus_error_is_set(&error) == TRUE) {
 877                         connman_error("%s", error.message);
 878                         dbus_error_free(&error);
 879                 } else
 880                         connman_error("Failed to set network options");
 881                 dbus_message_unref(message);
 882                 return -EIO;
 883         }
 884
 885         dbus_message_unref(message);
 886
 887         dbus_message_unref(reply);
 888
 889         return 0;
 890 }
 891
 892 static int initiate_scan(struct supplicant_task *task)
 893 {
 894         DBusMessage *message;
 895         DBusPendingCall *call;
 896
 897         DBG("task %p", task);
 898
 899         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 900                                         SUPPLICANT_INTF ".Interface", "scan");
 901         if (message == NULL)
 902                 return -ENOMEM;
 903
 904         if (dbus_connection_send_with_reply(connection, message,
 905                                                 &call, TIMEOUT) == FALSE) {
 906                 connman_error("Failed to initiate scan");
 907                 dbus_message_unref(message);
 908                 return -EIO;
 909         }
 910
 911         dbus_message_unref(message);
 912
 913         return 0;
 914 }
 915
 916 static struct {
 917         char *name;
 918         char *value;
 919 } special_ssid[] = {
 920         { "<hidden>", "hidden"  },
 921         { "default",  "linksys" },
 922         { "wireless"  },
 923         { "linksys"   },
 924         { "netgear"   },
 925         { "dlink"     },
 926         { "2wire"     },
 927         { "compaq"    },
 928         { "tsunami"   },
 929         { "comcomcom", "3com"     },
 930         { "3Com",      "3com"     },
 931         { "Symbol",    "symbol"   },
 932         { "Motorola",  "motorola" },
 933         { "Wireless" , "wireless" },
 934         { "WLAN",      "wlan"     },
 935         { }
 936 };
 937
 938 static char *build_group(const char *addr, const char *name,
 939                         const unsigned char *ssid, unsigned int ssid_len,
 940                                         const char *mode, const char *security)
 941 {
 942         GString *str;
 943         unsigned int i;
 944
 945         if (addr == NULL)
 946                 return NULL;
 947
 948         str = g_string_sized_new((ssid_len * 2) + 24);
 949         if (str == NULL)
 950                 return NULL;
 951
 952         if (ssid == NULL) {
 953                 g_string_append_printf(str, "hidden_%s", addr);
 954                 goto done;
 955         }
 956
 957         for (i = 0; special_ssid[i].name; i++) {
 958                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
 959                         if (special_ssid[i].value == NULL)
 960                                 g_string_append_printf(str, "%s_%s",
 961                                                                 name, addr);
 962                         else
 963                                 g_string_append_printf(str, "%s_%s",
 964                                                 special_ssid[i].value, addr);
 965                         goto done;
 966                 }
 967         }
 968
 969         if (ssid_len > 0 && ssid[0] != '\0') {
 970                 for (i = 0; i < ssid_len; i++)
 971                         g_string_append_printf(str, "%02x", ssid[i]);
 972         } else
 973                 g_string_append_printf(str, "hidden_%s", addr);
 974
 975 done:
 976         g_string_append_printf(str, "_%s_%s", mode, security);
 977
 978         return g_string_free(str, FALSE);
 979 }
 980
 981 static void extract_addr(DBusMessageIter *value,
 982                                         struct supplicant_result *result)
 983 {
 984         DBusMessageIter array;
 985         struct ether_addr eth;
 986         unsigned char *addr;
 987         int addr_len;
 988
 989         dbus_message_iter_recurse(value, &array);
 990         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
 991
 992         if (addr_len != 6)
 993                 return;
 994
 995         result->addr = g_try_malloc(addr_len);
 996         if (result->addr == NULL)
 997                 return;
 998
 999         memcpy(result->addr, addr, addr_len);
1000         result->addr_len = addr_len;
1001
1002         result->path = g_try_malloc0(13);
1003         if (result->path == NULL)
1004                 return;
1005
1006         memcpy(&eth, addr, sizeof(eth));
1007         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
1008                                                 eth.ether_addr_octet[0],
1009                                                 eth.ether_addr_octet[1],
1010                                                 eth.ether_addr_octet[2],
1011                                                 eth.ether_addr_octet[3],
1012                                                 eth.ether_addr_octet[4],
1013                                                 eth.ether_addr_octet[5]);
1014 }
1015
1016 static void extract_ssid(DBusMessageIter *value,
1017                                         struct supplicant_result *result)
1018 {
1019         DBusMessageIter array;
1020         unsigned char *ssid;
1021         int ssid_len, i;
1022
1023         dbus_message_iter_recurse(value, &array);
1024         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
1025
1026         if (ssid_len < 1)
1027                 return;
1028
1029         if (ssid[0] == '\0')
1030                 return;
1031
1032         result->ssid = g_try_malloc(ssid_len);
1033         if (result->ssid == NULL)
1034                 return;
1035
1036         memcpy(result->ssid, ssid, ssid_len);
1037         result->ssid_len = ssid_len;
1038
1039         result->name = g_try_malloc0(ssid_len + 1);
1040         if (result->name == NULL)
1041                 return;
1042
1043         for (i = 0; i < ssid_len; i++) {
1044                 if (g_ascii_isprint(ssid[i]))
1045                         result->name[i] = ssid[i];
1046                 else
1047                         result->name[i] = ' ';
1048         }
1049 }
1050
1051 static void extract_wpaie(DBusMessageIter *value,
1052                                         struct supplicant_result *result)
1053 {
1054         DBusMessageIter array;
1055         unsigned char *ie;
1056         int ie_len;
1057
1058         dbus_message_iter_recurse(value, &array);
1059         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1060
1061         if (ie_len > 0)
1062                 result->has_wpa = TRUE;
1063 }
1064
1065 static void extract_rsnie(DBusMessageIter *value,
1066                                         struct supplicant_result *result)
1067 {
1068         DBusMessageIter array;
1069         unsigned char *ie;
1070         int ie_len;
1071
1072         dbus_message_iter_recurse(value, &array);
1073         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1074
1075         if (ie_len > 0)
1076                 result->has_rsn = TRUE;
1077 }
1078
1079 static void extract_wpsie(DBusMessageIter *value,
1080                                         struct supplicant_result *result)
1081 {
1082         DBusMessageIter array;
1083         unsigned char *ie;
1084         int ie_len;
1085
1086         dbus_message_iter_recurse(value, &array);
1087         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1088
1089         if (ie_len > 0)
1090                 result->has_wps = TRUE;
1091 }
1092
1093 static void extract_capabilites(DBusMessageIter *value,
1094                                         struct supplicant_result *result)
1095 {
1096         dbus_message_iter_get_basic(value, &result->capabilities);
1097
1098         if (result->capabilities & IEEE80211_CAP_ESS)
1099                 result->adhoc = FALSE;
1100         else if (result->capabilities & IEEE80211_CAP_IBSS)
1101                 result->adhoc = TRUE;
1102
1103         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1104                 result->has_wep = TRUE;
1105 }
1106
1107 static unsigned char calculate_strength(struct supplicant_task *task,
1108                                         struct supplicant_result *result)
1109 {
1110         if (task->range->max_qual.qual == 0) {
1111                 unsigned char strength;
1112
1113                 if (result->level > 0)
1114                         strength = 100 - result->level;
1115                 else
1116                         strength = 120 + result->level;
1117
1118                 if (strength > 100)
1119                         strength = 100;
1120
1121                 return strength;
1122         }
1123
1124         return (result->quality * 100) / task->range->max_qual.qual;
1125 }
1126
1127 static unsigned short calculate_channel(struct supplicant_result *result)
1128 {
1129         if (result->frequency < 0)
1130                 return 0;
1131
1132         return (result->frequency - 2407) / 5;
1133 }
1134
1135 static void get_properties(struct supplicant_task *task);
1136
1137 static void properties_reply(DBusPendingCall *call, void *user_data)
1138 {
1139         struct supplicant_task *task = user_data;
1140         struct supplicant_result result;
1141         struct connman_network *network;
1142         DBusMessage *reply;
1143         DBusMessageIter array, dict;
1144         unsigned char strength;
1145         unsigned short channel, frequency;
1146         const char *mode, *security;
1147         char *group = NULL;
1148         unsigned int ssid_len;
1149
1150         DBG("task %p", task);
1151
1152         reply = dbus_pending_call_steal_reply(call);
1153         if (reply == NULL) {
1154                 get_properties(task);
1155                 return;
1156         }
1157
1158         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1159                 dbus_message_unref(reply);
1160                 get_properties(task);
1161                 return;
1162         }
1163
1164         memset(&result, 0, sizeof(result));
1165         result.frequency = -1;
1166         result.quality = -1;
1167         result.level = 0;
1168         result.noise = 0;
1169
1170         dbus_message_iter_init(reply, &array);
1171
1172         dbus_message_iter_recurse(&array, &dict);
1173
1174         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1175                 DBusMessageIter entry, value;
1176                 const char *key;
1177
1178                 dbus_message_iter_recurse(&dict, &entry);
1179                 dbus_message_iter_get_basic(&entry, &key);
1180
1181                 dbus_message_iter_next(&entry);
1182
1183                 dbus_message_iter_recurse(&entry, &value);
1184
1185                 //type = dbus_message_iter_get_arg_type(&value);
1186                 //dbus_message_iter_get_basic(&value, &val);
1187
1188                 /*
1189                  * bssid        : a (97)
1190                  * ssid         : a (97)
1191                  * wpaie        : a (97)
1192                  * rsnie        : a (97)
1193                  * wpsie        : a (97)
1194                  * frequency    : i (105)
1195                  * capabilities : q (113)
1196                  * quality      : i (105)
1197                  * noise        : i (105)
1198                  * level        : i (105)
1199                  * maxrate      : i (105)
1200                  */
1201
1202                 if (g_str_equal(key, "bssid") == TRUE)
1203                         extract_addr(&value, &result);
1204                 else if (g_str_equal(key, "ssid") == TRUE)
1205                         extract_ssid(&value, &result);
1206                 else if (g_str_equal(key, "wpaie") == TRUE)
1207                         extract_wpaie(&value, &result);
1208                 else if (g_str_equal(key, "rsnie") == TRUE)
1209                         extract_rsnie(&value, &result);
1210                 else if (g_str_equal(key, "wpsie") == TRUE)
1211                         extract_wpsie(&value, &result);
1212                 else if (g_str_equal(key, "capabilities") == TRUE)
1213                         extract_capabilites(&value, &result);
1214                 else if (g_str_equal(key, "frequency") == TRUE)
1215                         dbus_message_iter_get_basic(&value, &result.frequency);
1216                 else if (g_str_equal(key, "quality") == TRUE)
1217                         dbus_message_iter_get_basic(&value, &result.quality);
1218                 else if (g_str_equal(key, "noise") == TRUE)
1219                         dbus_message_iter_get_basic(&value, &result.noise);
1220                 else if (g_str_equal(key, "level") == TRUE)
1221                         dbus_message_iter_get_basic(&value, &result.level);
1222                 else if (g_str_equal(key, "maxrate") == TRUE)
1223                         dbus_message_iter_get_basic(&value, &result.maxrate);
1224
1225                 dbus_message_iter_next(&dict);
1226         }
1227
1228         if (result.path == NULL)
1229                 goto done;
1230
1231         if (result.path[0] == '\0')
1232                 goto done;
1233
1234         if (result.frequency > 0 && result.frequency < 14)
1235                 result.frequency = 2407 + (5 * result.frequency);
1236         else if (result.frequency == 14)
1237                 result.frequency = 2484;
1238
1239         strength = calculate_strength(task, &result);
1240         channel  = calculate_channel(&result);
1241
1242         frequency = (result.frequency < 0) ? 0 : result.frequency;
1243
1244         if (result.has_rsn == TRUE)
1245                 security = "rsn";
1246         else if (result.has_wpa == TRUE)
1247                 security = "wpa";
1248         else if (result.has_wep == TRUE)
1249                 security = "wep";
1250         else
1251                 security = "none";
1252
1253         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1254
1255         group = build_group(result.path, result.name,
1256                                         result.ssid, result.ssid_len,
1257                                                         mode, security);
1258
1259         network = connman_device_get_network(task->device, result.path);
1260         if (network == NULL) {
1261                 int index;
1262
1263                 network = connman_network_create(result.path,
1264                                                 CONNMAN_NETWORK_TYPE_WIFI);
1265                 if (network == NULL)
1266                         goto done;
1267
1268                 index = connman_device_get_index(task->device);
1269                 connman_network_set_index(network, index);
1270
1271                 connman_network_set_protocol(network,
1272                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1273
1274                 connman_network_set_address(network, result.addr,
1275                                                         result.addr_len);
1276
1277                 if (connman_device_add_network(task->device, network) < 0) {
1278                         connman_network_unref(network);
1279                         goto done;
1280                 }
1281         }
1282
1283         if (result.name != NULL && result.name[0] != '\0')
1284                 connman_network_set_name(network, result.name);
1285
1286         if (connman_network_get_blob(network, "WiFi.SSID", &ssid_len) == NULL) {
1287                 connman_network_set_blob(network, "WiFi.SSID",
1288                                          result.ssid, result.ssid_len);
1289         }
1290
1291         connman_network_set_string(network, "WiFi.Mode", mode);
1292
1293         DBG("%s (%s %s) strength %d (%s)",
1294                                 result.name, mode, security, strength,
1295                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1296
1297         connman_network_set_available(network, TRUE);
1298         connman_network_set_strength(network, strength);
1299
1300         connman_network_set_uint16(network, "Frequency", frequency);
1301         connman_network_set_uint16(network, "WiFi.Channel", channel);
1302         connman_network_set_string(network, "WiFi.Security", security);
1303
1304         if (result.ssid != NULL)
1305                 connman_network_set_group(network, group);
1306
1307 done:
1308         g_free(group);
1309
1310         g_free(result.path);
1311         g_free(result.addr);
1312         g_free(result.name);
1313         g_free(result.ssid);
1314
1315         dbus_message_unref(reply);
1316
1317         get_properties(task);
1318 }
1319
1320 static void get_properties(struct supplicant_task *task)
1321 {
1322         DBusMessage *message;
1323         DBusPendingCall *call;
1324         char *path;
1325
1326         path = g_slist_nth_data(task->scan_results, 0);
1327         if (path == NULL)
1328                 goto noscan;
1329
1330         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1331                                                 SUPPLICANT_INTF ".BSSID",
1332                                                                 "properties");
1333
1334         task->scan_results = g_slist_remove(task->scan_results, path);
1335         g_free(path);
1336
1337         if (message == NULL)
1338                 goto noscan;
1339
1340         if (dbus_connection_send_with_reply(connection, message,
1341                                                 &call, TIMEOUT) == FALSE) {
1342                 connman_error("Failed to get network properties");
1343                 dbus_message_unref(message);
1344                 goto noscan;
1345         }
1346
1347         if (call == NULL) {
1348                 connman_error("D-Bus connection not available");
1349                 dbus_message_unref(message);
1350                 goto noscan;
1351         }
1352
1353         dbus_pending_call_set_notify(call, properties_reply, task, NULL);
1354
1355         dbus_message_unref(message);
1356
1357         return;
1358
1359 noscan:
1360         if (task->noscan == FALSE)
1361                 connman_device_set_scanning(task->device, FALSE);
1362 }
1363
1364 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1365 {
1366         struct supplicant_task *task = user_data;
1367         DBusMessage *reply;
1368         DBusError error;
1369         char **results;
1370         int i, num_results;
1371
1372         DBG("task %p", task);
1373
1374         reply = dbus_pending_call_steal_reply(call);
1375         if (reply == NULL)
1376                 goto noscan;
1377
1378         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1379                 goto done;
1380
1381         dbus_error_init(&error);
1382
1383         if (dbus_message_get_args(reply, &error,
1384                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1385                                                 &results, &num_results,
1386                                                 DBUS_TYPE_INVALID) == FALSE) {
1387                 if (dbus_error_is_set(&error) == TRUE) {
1388                         connman_error("%s", error.message);
1389                         dbus_error_free(&error);
1390                 } else
1391                         connman_error("Wrong arguments for scan result");
1392                 goto done;
1393         }
1394
1395         if (num_results == 0)
1396                 goto done;
1397
1398         for (i = 0; i < num_results; i++) {
1399                 char *path = g_strdup(results[i]);
1400                 if (path == NULL)
1401                         continue;
1402
1403                 task->scan_results = g_slist_append(task->scan_results, path);
1404         }
1405
1406         g_strfreev(results);
1407
1408         dbus_message_unref(reply);
1409
1410         get_properties(task);
1411
1412         return;
1413
1414 done:
1415         dbus_message_unref(reply);
1416
1417 noscan:
1418         if (task->noscan == FALSE)
1419                 connman_device_set_scanning(task->device, FALSE);
1420 }
1421
1422 static void scan_results_available(struct supplicant_task *task)
1423 {
1424         DBusMessage *message;
1425         DBusPendingCall *call;
1426
1427         DBG("task %p", task);
1428
1429         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1430                                                 SUPPLICANT_INTF ".Interface",
1431                                                         "scanResults");
1432         if (message == NULL)
1433                 return;
1434
1435         if (dbus_connection_send_with_reply(connection, message,
1436                                                 &call, TIMEOUT) == FALSE) {
1437                 connman_error("Failed to request scan result");
1438                 goto done;
1439         }
1440
1441         if (task->noscan == FALSE)
1442                 connman_device_set_scanning(task->device, TRUE);
1443
1444         if (call == NULL) {
1445                 connman_error("D-Bus connection not available");
1446                 goto done;
1447         }
1448
1449         dbus_pending_call_set_notify(call, scan_results_reply, task, NULL);
1450
1451 done:
1452         dbus_message_unref(message);
1453 }
1454
1455 static enum supplicant_state string2state(const char *state)
1456 {
1457         if (g_str_equal(state, "INACTIVE") == TRUE)
1458                 return WPA_INACTIVE;
1459         else if (g_str_equal(state, "SCANNING") == TRUE)
1460                 return WPA_SCANNING;
1461         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1462                 return WPA_ASSOCIATING;
1463         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1464                 return WPA_ASSOCIATED;
1465         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1466                 return WPA_GROUP_HANDSHAKE;
1467         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1468                 return WPA_4WAY_HANDSHAKE;
1469         else if (g_str_equal(state, "COMPLETED") == TRUE)
1470                 return WPA_COMPLETED;
1471         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1472                 return WPA_DISCONNECTED;
1473         else
1474                 return WPA_INVALID;
1475 }
1476
1477 static int task_connect(struct supplicant_task *task)
1478 {
1479         const char *address, *security, *passphrase;
1480         const void *ssid;
1481         unsigned int ssid_len;
1482
1483         address = connman_network_get_string(task->network, "Address");
1484         security = connman_network_get_string(task->network, "WiFi.Security");
1485         passphrase = connman_network_get_string(task->network, "WiFi.Passphrase");
1486
1487         ssid = connman_network_get_blob(task->network, "WiFi.SSID", &ssid_len);
1488
1489         DBG("address %s security %s passphrase %s",
1490                                         address, security, passphrase);
1491
1492         if (security == NULL && passphrase == NULL)
1493                 return -EINVAL;
1494
1495         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1496                 return -EINVAL;
1497
1498         task->connecting = TRUE;
1499
1500         add_network(task);
1501
1502         select_network(task);
1503         disable_network(task);
1504
1505         set_network(task, ssid, ssid_len, address, security, passphrase);
1506
1507         enable_network(task);
1508
1509         return 0;
1510 }
1511
1512 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1513 {
1514         DBusError error;
1515         const char *newstate, *oldstate;
1516         enum supplicant_state state;
1517
1518         dbus_error_init(&error);
1519
1520         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1521                                                 DBUS_TYPE_STRING, &oldstate,
1522                                                 DBUS_TYPE_INVALID) == FALSE) {
1523                 if (dbus_error_is_set(&error) == TRUE) {
1524                         connman_error("%s", error.message);
1525                         dbus_error_free(&error);
1526                 } else
1527                         connman_error("Wrong arguments for state change");
1528                 return;
1529         }
1530
1531         DBG("state %s ==> %s", oldstate, newstate);
1532
1533         state = string2state(newstate);
1534         if (state == WPA_INVALID)
1535                 return;
1536
1537         task->state = state;
1538
1539         switch (task->state) {
1540         case WPA_SCANNING:
1541                 task->noscan = TRUE;
1542                 connman_device_set_scanning(task->device, TRUE);
1543                 break;
1544         case WPA_ASSOCIATING:
1545         case WPA_ASSOCIATED:
1546         case WPA_4WAY_HANDSHAKE:
1547         case WPA_GROUP_HANDSHAKE:
1548                 task->noscan = TRUE;
1549                 break;
1550         case WPA_COMPLETED:
1551         case WPA_DISCONNECTED:
1552                 task->noscan = FALSE;
1553                 break;
1554         case WPA_INACTIVE:
1555                 task->noscan = FALSE;
1556                 connman_device_set_scanning(task->device, FALSE);
1557                 break;
1558         case WPA_INVALID:
1559                 break;
1560         }
1561
1562         if (task->network == NULL)
1563                 return;
1564
1565         switch (task->state) {
1566         case WPA_COMPLETED:
1567                 if (connman_network_get_group(task->network) == NULL) {
1568                         const char *name, *mode, *security;
1569                         char *bssid;
1570
1571                         /*
1572                          * This is a hidden network, we need to set its
1573                          * group based on the BSSID we just joined.
1574                          */
1575                         bssid = get_bssid(task->device);
1576
1577                         name = connman_network_get_string(task->network,
1578                                                                 "Name");
1579                         mode = connman_network_get_string(task->network,
1580                                                                 "WiFi.Mode");
1581                         security = connman_network_get_string(task->network,
1582                                                         "WiFi.Security");
1583
1584                         if (bssid && name && mode && security) {
1585                                 char *group;
1586
1587                                 group = build_group(bssid, name, NULL, 0,
1588                                                                 mode, security);
1589                                 connman_network_set_group(task->network, group);
1590                                 g_free(group);
1591                         }
1592
1593                         g_free(bssid);
1594                 }
1595
1596                 /* carrier on */
1597                 connman_network_set_connected(task->network, TRUE);
1598                 connman_device_set_scanning(task->device, FALSE);
1599                 task->connecting = FALSE;
1600                 break;
1601
1602         case WPA_DISCONNECTED:
1603                 if (task->disconnecting == TRUE) {
1604                         connman_network_set_connected(task->network, FALSE);
1605                         connman_network_unref(task->network);
1606                         task->disconnecting = FALSE;
1607
1608                         if (task->pending_network != NULL) {
1609                                 task->network = task->pending_network;
1610                                 task->pending_network = NULL;
1611                                 task_connect(task);
1612                         }
1613                 } else {
1614                         /* carrier off */
1615                         connman_network_set_connected(task->network, FALSE);
1616                         connman_device_set_scanning(task->device, FALSE);
1617                         task->connecting = FALSE;
1618                 }
1619                 break;
1620
1621         case WPA_ASSOCIATING:
1622                 connman_network_set_associating(task->network, TRUE);
1623                 break;
1624
1625         default:
1626                 connman_network_set_associating(task->network, FALSE);
1627                 break;
1628         }
1629 }
1630
1631 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1632                                                 DBusMessage *msg, void *data)
1633 {
1634         struct supplicant_task *task;
1635         const char *member, *path;
1636
1637         if (dbus_message_has_interface(msg,
1638                                 SUPPLICANT_INTF ".Interface") == FALSE)
1639                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1640
1641         member = dbus_message_get_member(msg);
1642         if (member == NULL)
1643                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1644
1645         path = dbus_message_get_path(msg);
1646         if (path == NULL)
1647                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1648
1649         task = find_task_by_path(path);
1650         if (task == NULL)
1651                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1652
1653         DBG("task %p member %s", task, member);
1654
1655         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1656                 scan_results_available(task);
1657         else if (g_str_equal(member, "StateChange") == TRUE)
1658                 state_change(task, msg);
1659
1660         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1661 }
1662
1663 int supplicant_start(struct connman_device *device)
1664 {
1665         struct supplicant_task *task;
1666         int err;
1667
1668         DBG("device %p", device);
1669
1670         task = g_try_new0(struct supplicant_task, 1);
1671         if (task == NULL)
1672                 return -ENOMEM;
1673
1674         task->ifindex = connman_device_get_index(device);
1675         task->ifname = connman_inet_ifname(task->ifindex);
1676
1677         if (task->ifname == NULL) {
1678                 err = -ENOMEM;
1679                 goto failed;
1680         }
1681
1682         task->range = g_try_malloc0(sizeof(struct iw_range));
1683         if (task->range == NULL) {
1684                 err = -ENOMEM;
1685                 goto failed;
1686         }
1687
1688         err = get_range(task);
1689         if (err < 0)
1690                 goto failed;
1691
1692         task->device = connman_device_ref(device);
1693
1694         task->created = FALSE;
1695         task->noscan = FALSE;
1696         task->state = WPA_INVALID;
1697         task->connecting = FALSE;
1698         task->disconnecting = FALSE;
1699         task->pending_network = NULL;
1700
1701         task_list = g_slist_append(task_list, task);
1702
1703         return create_interface(task);
1704
1705 failed:
1706         g_free(task->range);
1707         g_free(task->ifname);
1708         g_free(task);
1709
1710         return err;
1711 }
1712
1713 int supplicant_stop(struct connman_device *device)
1714 {
1715         int index = connman_device_get_index(device);
1716         struct supplicant_task *task;
1717
1718         DBG("device %p", device);
1719
1720         task = find_task_by_index(index);
1721         if (task == NULL)
1722                 return -ENODEV;
1723
1724         g_free(task->range);
1725
1726         task_list = g_slist_remove(task_list, task);
1727
1728         disable_network(task);
1729
1730         remove_network(task);
1731
1732         return remove_interface(task);
1733 }
1734
1735 int supplicant_scan(struct connman_device *device)
1736 {
1737         int index = connman_device_get_index(device);
1738         struct supplicant_task *task;
1739         int err;
1740
1741         DBG("device %p", device);
1742
1743         task = find_task_by_index(index);
1744         if (task == NULL)
1745                 return -ENODEV;
1746
1747         switch (task->state) {
1748         case WPA_SCANNING:
1749                 return -EALREADY;
1750         case WPA_ASSOCIATING:
1751         case WPA_ASSOCIATED:
1752         case WPA_4WAY_HANDSHAKE:
1753         case WPA_GROUP_HANDSHAKE:
1754                 return -EBUSY;
1755         default:
1756                 break;
1757         }
1758
1759         err = initiate_scan(task);
1760
1761         return 0;
1762 }
1763
1764 int supplicant_connect(struct connman_network *network)
1765 {
1766         struct supplicant_task *task;
1767         int index;
1768
1769         DBG("network %p", network);
1770
1771         index = connman_network_get_index(network);
1772
1773         task = find_task_by_index(index);
1774         if (task == NULL)
1775                 return -ENODEV;
1776
1777         if (task->disconnecting == TRUE)
1778                 task->pending_network = connman_network_ref(network);
1779         else {
1780                 task->network = connman_network_ref(network);
1781                 return task_connect(task);
1782         }
1783
1784         return 0;
1785 }
1786
1787 int supplicant_disconnect(struct connman_network *network)
1788 {
1789         struct supplicant_task *task;
1790         int index;
1791
1792         DBG("network %p", network);
1793
1794         index = connman_network_get_index(network);
1795
1796         task = find_task_by_index(index);
1797         if (task == NULL)
1798                 return -ENODEV;
1799
1800         if (task->disconnecting == TRUE)
1801                 return -EINPROGRESS;
1802
1803         disable_network(task);
1804
1805         remove_network(task);
1806
1807         task->disconnecting = TRUE;
1808
1809         return 0;
1810 }
1811
1812 static void supplicant_activate(DBusConnection *conn)
1813 {
1814         DBusMessage *message;
1815
1816         DBG("conn %p", conn);
1817
1818         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
1819                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
1820         if (message == NULL)
1821                 return;
1822
1823         dbus_message_set_no_reply(message, TRUE);
1824
1825         dbus_connection_send(conn, message, NULL);
1826
1827         dbus_message_unref(message);
1828 }
1829
1830 static GSList *driver_list = NULL;
1831
1832 static void supplicant_probe(DBusConnection *conn, void *user_data)
1833 {
1834         GSList *list;
1835
1836         DBG("conn %p", conn);
1837
1838         for (list = driver_list; list; list = list->next) {
1839                 struct supplicant_driver *driver = list->data;
1840
1841                 DBG("driver %p name %s", driver, driver->name);
1842
1843                 if (driver->probe)
1844                         driver->probe();
1845         }
1846 }
1847
1848 static void supplicant_remove(DBusConnection *conn, void *user_data)
1849 {
1850         GSList *list;
1851
1852         DBG("conn %p", conn);
1853
1854         for (list = driver_list; list; list = list->next) {
1855                 struct supplicant_driver *driver = list->data;
1856
1857                 DBG("driver %p name %s", driver, driver->name);
1858
1859                 if (driver->remove)
1860                         driver->remove();
1861         }
1862 }
1863
1864 static const char *supplicant_rule = "type=signal,"
1865                                 "interface=" SUPPLICANT_INTF ".Interface";
1866 static guint watch;
1867
1868 static int supplicant_create(void)
1869 {
1870         if (g_slist_length(driver_list) > 0)
1871                 return 0;
1872
1873         connection = connman_dbus_get_connection();
1874         if (connection == NULL)
1875                 return -EIO;
1876
1877         DBG("connection %p", connection);
1878
1879         if (dbus_connection_add_filter(connection,
1880                                 supplicant_filter, NULL, NULL) == FALSE) {
1881                 connection = connman_dbus_get_connection();
1882                 return -EIO;
1883         }
1884
1885         dbus_bus_add_match(connection, supplicant_rule, NULL);
1886         dbus_connection_flush(connection);
1887
1888         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
1889                         supplicant_probe, supplicant_remove, NULL, NULL);
1890
1891         return 0;
1892 }
1893
1894 static void supplicant_destroy(void)
1895 {
1896         if (g_slist_length(driver_list) > 0)
1897                 return;
1898
1899         DBG("connection %p", connection);
1900
1901         if (watch > 0)
1902                 g_dbus_remove_watch(connection, watch);
1903
1904         dbus_bus_remove_match(connection, supplicant_rule, NULL);
1905         dbus_connection_flush(connection);
1906
1907         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
1908
1909         dbus_connection_unref(connection);
1910         connection = NULL;
1911 }
1912
1913 int supplicant_register(struct supplicant_driver *driver)
1914 {
1915         int err;
1916
1917         DBG("driver %p name %s", driver, driver->name);
1918
1919         err = supplicant_create();
1920         if (err < 0)
1921                 return err;
1922
1923         driver_list = g_slist_append(driver_list, driver);
1924
1925         if (g_dbus_check_service(connection, SUPPLICANT_NAME) == TRUE)
1926                 supplicant_probe(connection, NULL);
1927         else
1928                 supplicant_activate(connection);
1929
1930         return 0;
1931 }
1932
1933 void supplicant_unregister(struct supplicant_driver *driver)
1934 {
1935         DBG("driver %p name %s", driver, driver->name);
1936
1937         supplicant_remove(connection, NULL);
1938
1939         driver_list = g_slist_remove(driver_list, driver);
1940
1941         supplicant_destroy();
1942 }