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