plugins/supplicant.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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_psk;
 166         gboolean has_8021x;
 167         gboolean has_wpa;
 168         gboolean has_rsn;
 169         gboolean has_wps;
 170         dbus_int32_t frequency;
 171         dbus_int32_t quality;
 172         dbus_int32_t noise;
 173         dbus_int32_t level;
 174         dbus_int32_t maxrate;
 175 };
 176
 177 struct supplicant_task {
 178         int ifindex;
 179         char *ifname;
 180         gboolean mac80211;
 181         struct connman_device *device;
 182         struct connman_network *network;
 183         struct connman_network *pending_network;
 184         char *path;
 185         char *netpath;
 186         gboolean created;
 187         enum supplicant_state state;
 188         gboolean scanning;
 189         GSList *scan_results;
 190         DBusPendingCall *scan_call;
 191         DBusPendingCall *result_call;
 192         struct iw_range *range;
 193         gboolean disconnecting;
 194 };
 195
 196 static GSList *task_list = NULL;
 197
 198 static DBusConnection *connection;
 199
 200 static void free_task(struct supplicant_task *task)
 201 {
 202         DBG("task %p", task);
 203
 204         g_free(task->ifname);
 205         g_free(task->path);
 206         g_free(task);
 207 }
 208
 209 static struct supplicant_task *find_task_by_index(int index)
 210 {
 211         GSList *list;
 212
 213         for (list = task_list; list; list = list->next) {
 214                 struct supplicant_task *task = list->data;
 215
 216                 if (task->ifindex == index)
 217                         return task;
 218         }
 219
 220         return NULL;
 221 }
 222
 223 static struct supplicant_task *find_task_by_path(const char *path)
 224 {
 225         GSList *list;
 226
 227         for (list = task_list; list; list = list->next) {
 228                 struct supplicant_task *task = list->data;
 229
 230                 if (g_strcmp0(task->path, path) == 0)
 231                         return task;
 232         }
 233
 234         return NULL;
 235 }
 236
 237 static int get_range(struct supplicant_task *task)
 238 {
 239         struct iwreq wrq;
 240         int fd, err;
 241
 242         fd = socket(PF_INET, SOCK_DGRAM, 0);
 243         if (fd < 0)
 244                 return -1;
 245
 246         memset(&wrq, 0, sizeof(struct iwreq));
 247         strncpy(wrq.ifr_name, task->ifname, IFNAMSIZ);
 248         wrq.u.data.pointer = task->range;
 249         wrq.u.data.length = sizeof(struct iw_range);
 250
 251         err = ioctl(fd, SIOCGIWRANGE, &wrq);
 252
 253         close(fd);
 254
 255         if (err < 0)
 256                 task->range->max_qual.updated |= IW_QUAL_ALL_INVALID;
 257
 258         connman_info("%s {scan} capabilities 0x%02x", task->ifname,
 259                                                 task->range->scan_capa);
 260
 261         connman_info("%s {quality} flags 0x%02x", task->ifname,
 262                                         task->range->max_qual.updated);
 263
 264         return err;
 265 }
 266
 267 static int get_bssid(struct connman_device *device,
 268                                 unsigned char *bssid, unsigned int *bssid_len)
 269 {
 270         struct iwreq wrq;
 271         char *ifname;
 272         int ifindex;
 273         int fd, err;
 274
 275         ifindex = connman_device_get_index(device);
 276         if (ifindex < 0)
 277                 return -EINVAL;
 278
 279         ifname = connman_inet_ifname(ifindex);
 280         if (ifname == NULL)
 281                 return -EINVAL;
 282
 283         fd = socket(PF_INET, SOCK_DGRAM, 0);
 284         if (fd < 0) {
 285                 g_free(ifname);
 286                 return -EINVAL;
 287         }
 288
 289         memset(&wrq, 0, sizeof(wrq));
 290         strncpy(wrq.ifr_name, ifname, IFNAMSIZ);
 291
 292         err = ioctl(fd, SIOCGIWAP, &wrq);
 293
 294         g_free(ifname);
 295         close(fd);
 296
 297         if (err < 0)
 298                 return -EIO;
 299
 300         memcpy(bssid, wrq.u.ap_addr.sa_data, ETH_ALEN);
 301         *bssid_len = ETH_ALEN;
 302
 303         return 0;
 304 }
 305
 306 static void add_interface_reply(DBusPendingCall *call, void *user_data)
 307 {
 308         struct supplicant_task *task = user_data;
 309         DBusMessage *reply;
 310         DBusError error;
 311         const char *path;
 312
 313         DBG("task %p", task);
 314
 315         reply = dbus_pending_call_steal_reply(call);
 316
 317         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 318                 goto failed;
 319
 320         dbus_error_init(&error);
 321
 322         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 323                                                 DBUS_TYPE_INVALID) == FALSE) {
 324                 if (dbus_error_is_set(&error) == TRUE) {
 325                         connman_error("%s", error.message);
 326                         dbus_error_free(&error);
 327                 } else
 328                         connman_error("Wrong arguments for add interface");
 329                 goto failed;
 330         }
 331
 332         DBG("path %s", path);
 333
 334         task->path = g_strdup(path);
 335         task->created = TRUE;
 336
 337         connman_device_set_powered(task->device, TRUE);
 338
 339         dbus_message_unref(reply);
 340
 341         dbus_pending_call_unref(call);
 342
 343         return;
 344
 345 failed:
 346         dbus_message_unref(reply);
 347
 348         dbus_pending_call_unref(call);
 349
 350         task_list = g_slist_remove(task_list, task);
 351
 352         connman_device_unref(task->device);
 353
 354         free_task(task);
 355 }
 356
 357 static int add_interface(struct supplicant_task *task)
 358 {
 359         const char *driver = connman_option_get_string("wifi");
 360         DBusMessage *message;
 361         DBusMessageIter array, dict;
 362         DBusPendingCall *call;
 363
 364         DBG("task %p", task);
 365
 366         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 367                                         SUPPLICANT_INTF, "addInterface");
 368         if (message == NULL)
 369                 return -ENOMEM;
 370
 371         dbus_message_set_auto_start(message, FALSE);
 372
 373         dbus_message_iter_init_append(message, &array);
 374
 375         dbus_message_iter_append_basic(&array,
 376                                         DBUS_TYPE_STRING, &task->ifname);
 377
 378         connman_dbus_dict_open(&array, &dict);
 379
 380         connman_dbus_dict_append_basic(&dict, "driver",
 381                                                 DBUS_TYPE_STRING, &driver);
 382
 383         connman_dbus_dict_close(&array, &dict);
 384
 385         if (dbus_connection_send_with_reply(connection, message,
 386                                                 &call, TIMEOUT) == FALSE) {
 387                 connman_error("Failed to add interface");
 388                 dbus_message_unref(message);
 389                 return -EIO;
 390         }
 391
 392         if (call == NULL) {
 393                 connman_error("D-Bus connection not available");
 394                 dbus_message_unref(message);
 395                 return -EIO;
 396         }
 397
 398         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 399
 400         dbus_message_unref(message);
 401
 402         return -EINPROGRESS;
 403 }
 404
 405 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 406 {
 407         struct supplicant_task *task = user_data;
 408         DBusMessage *reply;
 409         DBusError error;
 410         const char *path;
 411
 412         DBG("task %p", task);
 413
 414         reply = dbus_pending_call_steal_reply(call);
 415
 416         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
 417                 add_interface(task);
 418                 goto done;
 419         }
 420
 421         dbus_error_init(&error);
 422
 423         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 424                                                 DBUS_TYPE_INVALID) == FALSE) {
 425                 if (dbus_error_is_set(&error) == TRUE) {
 426                         connman_error("%s", error.message);
 427                         dbus_error_free(&error);
 428                 } else
 429                         connman_error("Wrong arguments for get interface");
 430                 goto done;
 431         }
 432
 433         DBG("path %s", path);
 434
 435         task->path = g_strdup(path);
 436         task->created = FALSE;
 437
 438         connman_device_set_powered(task->device, TRUE);
 439
 440 done:
 441         dbus_message_unref(reply);
 442
 443         dbus_pending_call_unref(call);
 444 }
 445
 446 static int create_interface(struct supplicant_task *task)
 447 {
 448         DBusMessage *message;
 449         DBusPendingCall *call;
 450
 451         DBG("task %p", task);
 452
 453         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 454                                         SUPPLICANT_INTF, "getInterface");
 455         if (message == NULL)
 456                 return -ENOMEM;
 457
 458         dbus_message_set_auto_start(message, FALSE);
 459
 460         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 461                                                         DBUS_TYPE_INVALID);
 462
 463         if (dbus_connection_send_with_reply(connection, message,
 464                                                 &call, TIMEOUT) == FALSE) {
 465                 connman_error("Failed to get interface");
 466                 dbus_message_unref(message);
 467                 return -EIO;
 468         }
 469
 470         if (call == NULL) {
 471                 connman_error("D-Bus connection not available");
 472                 dbus_message_unref(message);
 473                 return -EIO;
 474         }
 475
 476         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 477
 478         dbus_message_unref(message);
 479
 480         return -EINPROGRESS;
 481 }
 482
 483 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 484 {
 485         struct supplicant_task *task = user_data;
 486         DBusMessage *reply;
 487
 488         DBG("task %p", task);
 489
 490         reply = dbus_pending_call_steal_reply(call);
 491
 492         connman_device_set_powered(task->device, FALSE);
 493
 494         connman_device_unref(task->device);
 495
 496         connman_inet_ifdown(task->ifindex);
 497
 498         free_task(task);
 499
 500         dbus_message_unref(reply);
 501
 502         dbus_pending_call_unref(call);
 503 }
 504
 505 static int remove_interface(struct supplicant_task *task)
 506 {
 507         DBusMessage *message;
 508         DBusPendingCall *call;
 509
 510         DBG("task %p", task);
 511
 512 #if 0
 513         if (task->created == FALSE) {
 514                 connman_device_set_powered(task->device, FALSE);
 515                 return 0;
 516         }
 517 #endif
 518
 519         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 520                                         SUPPLICANT_INTF, "removeInterface");
 521         if (message == NULL)
 522                 return -ENOMEM;
 523
 524         dbus_message_set_auto_start(message, FALSE);
 525
 526         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 527                                                         DBUS_TYPE_INVALID);
 528
 529         if (dbus_connection_send_with_reply(connection, message,
 530                                                 &call, TIMEOUT) == FALSE) {
 531                 connman_error("Failed to remove interface");
 532                 dbus_message_unref(message);
 533                 return -EIO;
 534         }
 535
 536         if (call == NULL) {
 537                 connman_error("D-Bus connection not available");
 538                 dbus_message_unref(message);
 539                 return -EIO;
 540         }
 541
 542         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 543
 544         dbus_message_unref(message);
 545
 546         return -EINPROGRESS;
 547 }
 548
 549 static int set_ap_scan(struct supplicant_task *task)
 550 {
 551         DBusMessage *message, *reply;
 552         DBusError error;
 553         guint32 ap_scan = 1;
 554
 555         DBG("task %p", task);
 556
 557         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 558                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 559         if (message == NULL)
 560                 return -ENOMEM;
 561
 562         dbus_message_set_auto_start(message, FALSE);
 563
 564         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 565                                                         DBUS_TYPE_INVALID);
 566
 567         dbus_error_init(&error);
 568
 569         reply = dbus_connection_send_with_reply_and_block(connection,
 570                                                         message, -1, &error);
 571         if (reply == NULL) {
 572                 if (dbus_error_is_set(&error) == TRUE) {
 573                         connman_error("%s", error.message);
 574                         dbus_error_free(&error);
 575                 } else
 576                         connman_error("Failed to set AP scan");
 577                 dbus_message_unref(message);
 578                 return -EIO;
 579         }
 580
 581         dbus_message_unref(message);
 582
 583         dbus_message_unref(reply);
 584
 585         return 0;
 586 }
 587
 588 static int add_network(struct supplicant_task *task)
 589 {
 590         DBusMessage *message, *reply;
 591         DBusError error;
 592         const char *path;
 593
 594         DBG("task %p", task);
 595
 596         if (task->netpath != NULL)
 597                 return -EALREADY;
 598
 599         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 600                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 601         if (message == NULL)
 602                 return -ENOMEM;
 603
 604         dbus_message_set_auto_start(message, FALSE);
 605
 606         dbus_error_init(&error);
 607
 608         reply = dbus_connection_send_with_reply_and_block(connection,
 609                                                         message, -1, &error);
 610         if (reply == NULL) {
 611                 if (dbus_error_is_set(&error) == TRUE) {
 612                         connman_error("%s", error.message);
 613                         dbus_error_free(&error);
 614                 } else
 615                         connman_error("Failed to add network");
 616                 dbus_message_unref(message);
 617                 return -EIO;
 618         }
 619
 620         dbus_message_unref(message);
 621
 622         dbus_error_init(&error);
 623
 624         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 625                                                 DBUS_TYPE_INVALID) == FALSE) {
 626                 if (dbus_error_is_set(&error) == TRUE) {
 627                         connman_error("%s", error.message);
 628                         dbus_error_free(&error);
 629                 } else
 630                         connman_error("Wrong arguments for network");
 631                 dbus_message_unref(reply);
 632                 return -EIO;
 633         }
 634
 635         DBG("path %s", path);
 636
 637         task->netpath = g_strdup(path);
 638
 639         dbus_message_unref(reply);
 640
 641         return 0;
 642 }
 643
 644 static int remove_network(struct supplicant_task *task)
 645 {
 646         DBusMessage *message, *reply;
 647         DBusError error;
 648
 649         DBG("task %p", task);
 650
 651         if (task->netpath == NULL)
 652                 return -EINVAL;
 653
 654         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 655                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 656         if (message == NULL)
 657                 return -ENOMEM;
 658
 659         dbus_message_set_auto_start(message, FALSE);
 660
 661         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 662                                                         DBUS_TYPE_INVALID);
 663
 664         dbus_error_init(&error);
 665
 666         reply = dbus_connection_send_with_reply_and_block(connection,
 667                                                         message, -1, &error);
 668         if (reply == NULL) {
 669                 if (dbus_error_is_set(&error) == TRUE) {
 670                         connman_error("%s", error.message);
 671                         dbus_error_free(&error);
 672                 } else
 673                         connman_error("Failed to remove network");
 674                 dbus_message_unref(message);
 675                 return -EIO;
 676         }
 677
 678         dbus_message_unref(message);
 679
 680         dbus_message_unref(reply);
 681
 682         g_free(task->netpath);
 683         task->netpath = NULL;
 684
 685         return 0;
 686 }
 687
 688 static int select_network(struct supplicant_task *task)
 689 {
 690         DBusMessage *message, *reply;
 691         DBusError error;
 692
 693         DBG("task %p", task);
 694
 695         if (task->netpath == NULL)
 696                 return -EINVAL;
 697
 698         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 699                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 700         if (message == NULL)
 701                 return -ENOMEM;
 702
 703         dbus_message_set_auto_start(message, FALSE);
 704
 705         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 706                                                         DBUS_TYPE_INVALID);
 707
 708         dbus_error_init(&error);
 709
 710         reply = dbus_connection_send_with_reply_and_block(connection,
 711                                                         message, -1, &error);
 712         if (reply == NULL) {
 713                 if (dbus_error_is_set(&error) == TRUE) {
 714                         connman_error("%s", error.message);
 715                         dbus_error_free(&error);
 716                 } else
 717                         connman_error("Failed to select network");
 718                 dbus_message_unref(message);
 719                 return -EIO;
 720         }
 721
 722         dbus_message_unref(message);
 723
 724         dbus_message_unref(reply);
 725
 726         return 0;
 727 }
 728
 729 static int disconnect_network(struct supplicant_task *task)
 730 {
 731         DBusMessage *message, *reply;
 732         DBusError error;
 733
 734         DBG("task %p", task);
 735
 736         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 737                                 SUPPLICANT_INTF ".Interface", "disconnect");
 738         if (message == NULL)
 739                 return -ENOMEM;
 740
 741         dbus_message_set_auto_start(message, FALSE);
 742
 743         dbus_error_init(&error);
 744
 745         reply = dbus_connection_send_with_reply_and_block(connection,
 746                                                         message, -1, &error);
 747         if (reply == NULL) {
 748                 if (dbus_error_is_set(&error) == TRUE) {
 749                         connman_error("%s", error.message);
 750                         dbus_error_free(&error);
 751                 } else
 752                         connman_error("Failed to disconnect network");
 753                 dbus_message_unref(message);
 754                 return -EIO;
 755         }
 756
 757         dbus_message_unref(message);
 758
 759         dbus_message_unref(reply);
 760
 761         return 0;
 762 }
 763
 764 static int set_network_tls(struct connman_network *network,
 765                            DBusMessageIter *dict)
 766 {
 767         const char *private_key, *client_cert, *ca_cert;
 768         const char *private_key_password;
 769
 770         /*
 771          * For TLS, we at least need a key, the client cert,
 772          * and a passhprase.
 773          * Server cert is optional.
 774          */
 775         client_cert = connman_network_get_string(network,
 776                                                 "WiFi.ClientCertFile");
 777         if (client_cert == NULL)
 778                 return -EINVAL;
 779
 780         private_key = connman_network_get_string(network,
 781                                                 "WiFi.PrivateKeyFile");
 782         if (private_key == NULL)
 783                 return -EINVAL;
 784
 785         private_key_password = connman_network_get_string(network,
 786                                                 "WiFi.PrivateKeyPassphrase");
 787         if (private_key_password == NULL)
 788                 return -EINVAL;
 789
 790         ca_cert = connman_network_get_string(network, "WiFi.CACertFile");
 791         if (ca_cert)
 792                 connman_dbus_dict_append_basic(dict, "ca_cert",
 793                                                 DBUS_TYPE_STRING, &ca_cert);
 794
 795         DBG("client cert %s private key %s", client_cert, private_key);
 796
 797         connman_dbus_dict_append_basic(dict, "private_key",
 798                                                 DBUS_TYPE_STRING, &private_key);
 799         connman_dbus_dict_append_basic(dict, "private_key_passwd",
 800                                                         DBUS_TYPE_STRING,
 801                                                         &private_key_password);
 802         connman_dbus_dict_append_basic(dict, "client_cert",
 803                                                 DBUS_TYPE_STRING, &client_cert);
 804
 805         return 0;
 806 }
 807
 808 static int set_network_peap(struct connman_network *network,
 809                             DBusMessageIter *dict, const char *passphrase)
 810 {
 811         const char *client_cert, *ca_cert, *phase2;
 812         char *phase2_auth;
 813
 814         /*
 815          * For PEAP, we at least need the sever cert, a 2nd
 816          * phase authentication and a passhprase.
 817          * Client cert is optional although strongly required
 818          * When setting the client cert, we then need a private
 819          * key as well.
 820          */
 821         ca_cert = connman_network_get_string(network, "WiFi.CACertFile");
 822         if (ca_cert == NULL)
 823                 return -EINVAL;
 824
 825         phase2 = connman_network_get_string(network, "WiFi.Phase2");
 826         if (phase2 == NULL)
 827                 return -EINVAL;
 828
 829         DBG("CA cert %s phase2 auth %s", ca_cert, phase2);
 830
 831         client_cert = connman_network_get_string(network,
 832                                                         "WiFi.ClientCertFile");
 833         if (client_cert) {
 834                 const char *private_key, *private_key_password;
 835
 836                 private_key = connman_network_get_string(network,
 837                                                         "WiFi.PrivateKeyFile");
 838                 if (private_key == NULL)
 839                         return -EINVAL;
 840
 841                 private_key_password =
 842                         connman_network_get_string(network,
 843                                                 "WiFi.PrivateKeyPassphrase");
 844                 if (private_key_password == NULL)
 845                         return -EINVAL;
 846
 847                 connman_dbus_dict_append_basic(dict, "client_cert",
 848                                                 DBUS_TYPE_STRING, &client_cert);
 849
 850                 connman_dbus_dict_append_basic(dict, "private_key",
 851                                                 DBUS_TYPE_STRING, &private_key);
 852
 853                 connman_dbus_dict_append_basic(dict, "private_key_passwd",
 854                                                         DBUS_TYPE_STRING,
 855                                                         &private_key_password);
 856
 857                 DBG("client cert %s private key %s", client_cert, private_key);
 858         }
 859
 860         phase2_auth = g_strdup_printf("\"auth=%s\"", phase2);
 861
 862         connman_dbus_dict_append_basic(dict, "password",
 863                                                 DBUS_TYPE_STRING, &passphrase);
 864
 865         connman_dbus_dict_append_basic(dict, "ca_cert",
 866                                                 DBUS_TYPE_STRING, &ca_cert);
 867
 868         connman_dbus_dict_append_basic(dict, "phase2",
 869                                                 DBUS_TYPE_STRING, &phase2_auth);
 870
 871         g_free(phase2_auth);
 872
 873         return 0;
 874 }
 875
 876 static int set_network(struct supplicant_task *task,
 877                                 const unsigned char *network, int len,
 878                                 const char *address, const char *security,
 879                                                         const char *passphrase)
 880 {
 881         DBusMessage *message, *reply;
 882         DBusMessageIter array, dict;
 883         DBusError error;
 884         dbus_uint32_t scan_ssid = 1;
 885
 886         DBG("task %p", task);
 887
 888         if (task->netpath == NULL)
 889                 return -EINVAL;
 890
 891         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 892                                         SUPPLICANT_INTF ".Network", "set");
 893         if (message == NULL)
 894                 return -ENOMEM;
 895
 896         dbus_message_set_auto_start(message, FALSE);
 897
 898         dbus_message_iter_init_append(message, &array);
 899
 900         connman_dbus_dict_open(&array, &dict);
 901
 902         connman_dbus_dict_append_basic(&dict, "scan_ssid",
 903                                          DBUS_TYPE_UINT32, &scan_ssid);
 904
 905         if (network)
 906                 connman_dbus_dict_append_fixed_array(&dict, "ssid",
 907                                                 DBUS_TYPE_BYTE, &network, len);
 908         else if (address)
 909                 connman_dbus_dict_append_basic(&dict, "bssid",
 910                                                 DBUS_TYPE_STRING, &address);
 911
 912         if (g_ascii_strcasecmp(security, "psk") == 0 ||
 913                                 g_ascii_strcasecmp(security, "wpa") == 0 ||
 914                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 915                 const char *key_mgmt = "WPA-PSK";
 916                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 917                                                 DBUS_TYPE_STRING, &key_mgmt);
 918
 919                 if (passphrase && strlen(passphrase) > 0)
 920                         connman_dbus_dict_append_basic(&dict, "psk",
 921                                                 DBUS_TYPE_STRING, &passphrase);
 922         } else if (g_ascii_strcasecmp(security, "ieee8021x") == 0) {
 923                 struct connman_network *network = task->network;
 924                 const char *key_mgmt = "WPA-EAP", *eap, *identity;
 925                 char *eap_value;
 926
 927                 /*
 928                  * If our private key password is unset,
 929                  * we use the supplied passphrase. That is needed
 930                  * for PEAP where 2 passphrases (identity and client
 931                  * cert may have to be provided.
 932                  */
 933                 if (connman_network_get_string(network,
 934                                         "WiFi.PrivateKeyPassphrase") == NULL)
 935                         connman_network_set_string(network,
 936                                                 "WiFi.PrivateKeyPassphrase",
 937                                                                 passphrase);
 938
 939                 eap = connman_network_get_string(network, "WiFi.EAP");
 940                 if (eap == NULL)
 941                         goto invalid;
 942
 943                 /* We must have an identity for both PEAP and TLS */
 944                 identity = connman_network_get_string(network, "WiFi.Identity");
 945                 if (identity == NULL)
 946                         goto invalid;
 947
 948                 DBG("key_mgmt %s eap %s identity %s", key_mgmt, eap, identity);
 949
 950                 if (g_strcmp0(eap, "tls") == 0) {
 951                         int err;
 952
 953                         err = set_network_tls(network, &dict);
 954                         if (err < 0) {
 955                                 dbus_message_unref(message);
 956                                 return err;
 957                         }
 958                 } else if (g_strcmp0(eap, "peap") == 0) {
 959                         int err;
 960
 961                         err = set_network_peap(network, &dict, passphrase);
 962                         if (err < 0) {
 963                                 dbus_message_unref(message);
 964                                 return err;
 965                         }
 966                 } else {
 967                         connman_error("Unknown EAP %s", eap);
 968                         goto invalid;
 969                 }
 970
 971                 /* wpa_supplicant only accepts upper case EAPs */
 972                 eap_value = g_ascii_strup(eap, -1);
 973
 974                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 975                                                         DBUS_TYPE_STRING,
 976                                                         &key_mgmt);
 977                 connman_dbus_dict_append_basic(&dict, "eap",
 978                                                         DBUS_TYPE_STRING,
 979                                                         &eap_value);
 980                 connman_dbus_dict_append_basic(&dict, "identity",
 981                                                         DBUS_TYPE_STRING,
 982                                                         &identity);
 983
 984                 g_free(eap_value);
 985
 986         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 987                 const char *key_mgmt = "NONE";
 988                 const char *auth_alg = "OPEN";
 989                 const char *key_index = "0";
 990
 991                 if (task->mac80211 == TRUE)
 992                         auth_alg = "OPEN SHARED";
 993
 994                 connman_dbus_dict_append_basic(&dict, "auth_alg",
 995                                                 DBUS_TYPE_STRING, &auth_alg);
 996
 997                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 998                                                 DBUS_TYPE_STRING, &key_mgmt);
 999
1000                 if (passphrase) {
1001                         int size = strlen(passphrase);
1002                         if (size == 10 || size == 26) {
1003                                 unsigned char *key = malloc(13);
1004                                 char tmp[3];
1005                                 int i;
1006                                 memset(tmp, 0, sizeof(tmp));
1007                                 if (key == NULL)
1008                                         size = 0;
1009                                 for (i = 0; i < size / 2; i++) {
1010                                         memcpy(tmp, passphrase + (i * 2), 2);
1011                                         key[i] = (unsigned char) strtol(tmp,
1012                                                                 NULL, 16);
1013                                 }
1014                                 connman_dbus_dict_append_fixed_array(&dict,
1015                                                 "wep_key0", DBUS_TYPE_BYTE,
1016                                                         &key, size / 2);
1017                                 free(key);
1018                         } else
1019                                 connman_dbus_dict_append_basic(&dict,
1020                                                 "wep_key0", DBUS_TYPE_STRING,
1021                                                                 &passphrase);
1022
1023                         connman_dbus_dict_append_basic(&dict, "wep_tx_keyidx",
1024                                                 DBUS_TYPE_STRING, &key_index);
1025                 }
1026         } else {
1027                 const char *key_mgmt = "NONE";
1028                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
1029                                                 DBUS_TYPE_STRING, &key_mgmt);
1030         }
1031
1032         connman_dbus_dict_close(&array, &dict);
1033
1034         dbus_error_init(&error);
1035
1036         reply = dbus_connection_send_with_reply_and_block(connection,
1037                                                         message, -1, &error);
1038         if (reply == NULL) {
1039                 if (dbus_error_is_set(&error) == TRUE) {
1040                         connman_error("%s", error.message);
1041                         dbus_error_free(&error);
1042                 } else
1043                         connman_error("Failed to set network options");
1044                 dbus_message_unref(message);
1045                 return -EIO;
1046         }
1047
1048         dbus_message_unref(message);
1049
1050         dbus_message_unref(reply);
1051
1052         return 0;
1053
1054 invalid:
1055         dbus_message_unref(message);
1056         return -EINVAL;
1057 }
1058
1059 static void scan_reply(DBusPendingCall *call, void *user_data)
1060 {
1061         struct supplicant_task *task = user_data;
1062         DBusMessage *reply;
1063
1064         DBG("task %p", task);
1065
1066         task->scan_call = NULL;
1067
1068         reply = dbus_pending_call_steal_reply(call);
1069
1070         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1071                 connman_device_set_scanning(task->device, FALSE);
1072                 goto done;
1073         }
1074
1075         if (task->scanning == TRUE)
1076                 connman_device_set_scanning(task->device, TRUE);
1077
1078 done:
1079         dbus_message_unref(reply);
1080
1081         dbus_pending_call_unref(call);
1082 }
1083
1084
1085 static int initiate_scan(struct supplicant_task *task)
1086 {
1087         DBusMessage *message;
1088
1089         DBG("task %p", task);
1090
1091         if (task->path == NULL)
1092                 return -EINVAL;
1093
1094         if (task->scan_call != NULL)
1095                 return -EALREADY;
1096
1097         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1098                                         SUPPLICANT_INTF ".Interface", "scan");
1099         if (message == NULL)
1100                 return -ENOMEM;
1101
1102         dbus_message_set_auto_start(message, FALSE);
1103
1104         if (dbus_connection_send_with_reply(connection, message,
1105                                         &task->scan_call, TIMEOUT) == FALSE) {
1106                 connman_error("Failed to initiate scan");
1107                 dbus_message_unref(message);
1108                 return -EIO;
1109         }
1110
1111         if (task->scan_call == NULL) {
1112                 connman_error("D-Bus connection not available");
1113                 dbus_message_unref(message);
1114                 return -EIO;
1115         }
1116
1117         dbus_pending_call_set_notify(task->scan_call, scan_reply, task, NULL);
1118
1119         dbus_message_unref(message);
1120
1121         return -EINPROGRESS;
1122 }
1123
1124 static struct {
1125         char *name;
1126         char *value;
1127 } special_ssid[] = {
1128         { "<hidden>", "hidden"  },
1129         { "default",  "linksys" },
1130         { "wireless"  },
1131         { "linksys"   },
1132         { "netgear"   },
1133         { "dlink"     },
1134         { "2wire"     },
1135         { "compaq"    },
1136         { "tsunami"   },
1137         { "comcomcom", "3com"     },
1138         { "3Com",      "3com"     },
1139         { "Symbol",    "symbol"   },
1140         { "Motorola",  "motorola" },
1141         { "Wireless" , "wireless" },
1142         { "WLAN",      "wlan"     },
1143         { }
1144 };
1145
1146 static char *build_group(const char *addr, const char *name,
1147                         const unsigned char *ssid, unsigned int ssid_len,
1148                                         const char *mode, const char *security)
1149 {
1150         GString *str;
1151         unsigned int i;
1152
1153         if (addr == NULL)
1154                 return NULL;
1155
1156         str = g_string_sized_new((ssid_len * 2) + 24);
1157         if (str == NULL)
1158                 return NULL;
1159
1160         if (ssid == NULL) {
1161                 g_string_append_printf(str, "hidden_%s", addr);
1162                 goto done;
1163         }
1164
1165         for (i = 0; special_ssid[i].name; i++) {
1166                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
1167                         if (special_ssid[i].value == NULL)
1168                                 g_string_append_printf(str, "%s_%s",
1169                                                                 name, addr);
1170                         else
1171                                 g_string_append_printf(str, "%s_%s",
1172                                                 special_ssid[i].value, addr);
1173                         goto done;
1174                 }
1175         }
1176
1177         if (ssid_len > 0 && ssid[0] != '\0') {
1178                 for (i = 0; i < ssid_len; i++)
1179                         g_string_append_printf(str, "%02x", ssid[i]);
1180         } else
1181                 g_string_append_printf(str, "hidden_%s", addr);
1182
1183 done:
1184         g_string_append_printf(str, "_%s_%s", mode, security);
1185
1186         return g_string_free(str, FALSE);
1187 }
1188
1189 static void extract_addr(DBusMessageIter *value,
1190                                         struct supplicant_result *result)
1191 {
1192         DBusMessageIter array;
1193         struct ether_addr eth;
1194         unsigned char *addr;
1195         int addr_len;
1196
1197         dbus_message_iter_recurse(value, &array);
1198         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
1199
1200         if (addr_len != 6)
1201                 return;
1202
1203         result->addr = g_try_malloc(addr_len);
1204         if (result->addr == NULL)
1205                 return;
1206
1207         memcpy(result->addr, addr, addr_len);
1208         result->addr_len = addr_len;
1209
1210         result->path = g_try_malloc0(13);
1211         if (result->path == NULL)
1212                 return;
1213
1214         memcpy(&eth, addr, sizeof(eth));
1215         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
1216                                                 eth.ether_addr_octet[0],
1217                                                 eth.ether_addr_octet[1],
1218                                                 eth.ether_addr_octet[2],
1219                                                 eth.ether_addr_octet[3],
1220                                                 eth.ether_addr_octet[4],
1221                                                 eth.ether_addr_octet[5]);
1222 }
1223
1224 static void extract_ssid(DBusMessageIter *value,
1225                                         struct supplicant_result *result)
1226 {
1227         DBusMessageIter array;
1228         unsigned char *ssid;
1229         int ssid_len, i;
1230
1231         dbus_message_iter_recurse(value, &array);
1232         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
1233
1234         if (ssid_len < 1)
1235                 return;
1236
1237         if (ssid[0] == '\0')
1238                 return;
1239
1240         result->ssid = g_try_malloc(ssid_len);
1241         if (result->ssid == NULL)
1242                 return;
1243
1244         memcpy(result->ssid, ssid, ssid_len);
1245         result->ssid_len = ssid_len;
1246
1247         result->name = g_try_malloc0(ssid_len + 1);
1248         if (result->name == NULL)
1249                 return;
1250
1251         for (i = 0; i < ssid_len; i++) {
1252                 if (g_ascii_isprint(ssid[i]))
1253                         result->name[i] = ssid[i];
1254                 else
1255                         result->name[i] = ' ';
1256         }
1257 }
1258
1259 static unsigned char wifi_oui[3]      = { 0x00, 0x50, 0xf2 };
1260 static unsigned char ieee80211_oui[3] = { 0x00, 0x0f, 0xac };
1261
1262 static void extract_rsn(struct supplicant_result *result,
1263                                         const unsigned char *buf, int len)
1264 {
1265         uint16_t count;
1266         int i;
1267
1268         /* Version */
1269         if (len < 2)
1270                 return;
1271
1272         buf += 2;
1273         len -= 2;
1274
1275         /* Group cipher */
1276         if (len < 4)
1277                 return;
1278
1279         buf += 4;
1280         len -= 4;
1281
1282         /* Pairwise cipher */
1283         if (len < 2)
1284                 return;
1285
1286         count = buf[0] | (buf[1] << 8);
1287         if (2 + (count * 4) > len)
1288                 return;
1289
1290         buf += 2 + (count * 4);
1291         len -= 2 + (count * 4);
1292
1293         /* Authentication */
1294         if (len < 2)
1295                 return;
1296
1297         count = buf[0] | (buf[1] << 8);
1298         if (2 + (count * 4) > len)
1299                 return;
1300
1301         for (i = 0; i < count; i++) {
1302                 const unsigned char *ptr = buf + 2 + (i * 4);
1303
1304                 if (memcmp(ptr, wifi_oui, 3) == 0) {
1305                         switch (ptr[3]) {
1306                         case 1:
1307                                 result->has_8021x = TRUE;
1308                                 break;
1309                         case 2:
1310                                 result->has_psk = TRUE;
1311                                 break;
1312                         }
1313                 } else if (memcmp(ptr, ieee80211_oui, 3) == 0) {
1314                         switch (ptr[3]) {
1315                         case 1:
1316                                 result->has_8021x = TRUE;
1317                                 break;
1318                         case 2:
1319                                 result->has_psk = TRUE;
1320                                 break;
1321                         }
1322                 }
1323         }
1324
1325         buf += 2 + (count * 4);
1326         len -= 2 + (count * 4);
1327 }
1328
1329 static void extract_wpaie(DBusMessageIter *value,
1330                                         struct supplicant_result *result)
1331 {
1332         DBusMessageIter array;
1333         unsigned char *ie;
1334         int ie_len;
1335
1336         dbus_message_iter_recurse(value, &array);
1337         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1338
1339         if (ie_len > 6) {
1340                 result->has_wpa = TRUE;
1341                 extract_rsn(result, ie + 6, ie_len - 6);
1342         }
1343 }
1344
1345 static void extract_rsnie(DBusMessageIter *value,
1346                                         struct supplicant_result *result)
1347 {
1348         DBusMessageIter array;
1349         unsigned char *ie;
1350         int ie_len;
1351
1352         dbus_message_iter_recurse(value, &array);
1353         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1354
1355         if (ie_len > 2) {
1356                 result->has_rsn = TRUE;
1357                 extract_rsn(result, ie + 2, ie_len - 2);
1358         }
1359 }
1360
1361 static void extract_wpsie(DBusMessageIter *value,
1362                                         struct supplicant_result *result)
1363 {
1364         DBusMessageIter array;
1365         unsigned char *ie;
1366         int ie_len;
1367
1368         dbus_message_iter_recurse(value, &array);
1369         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1370
1371         if (ie_len > 0)
1372                 result->has_wps = TRUE;
1373 }
1374
1375 static void extract_capabilites(DBusMessageIter *value,
1376                                         struct supplicant_result *result)
1377 {
1378         dbus_message_iter_get_basic(value, &result->capabilities);
1379
1380         if (result->capabilities & IEEE80211_CAP_ESS)
1381                 result->adhoc = FALSE;
1382         else if (result->capabilities & IEEE80211_CAP_IBSS)
1383                 result->adhoc = TRUE;
1384
1385         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1386                 result->has_wep = TRUE;
1387 }
1388
1389 static unsigned char calculate_strength(struct supplicant_task *task,
1390                                         struct supplicant_result *result)
1391 {
1392         if (result->quality == -1 || task->range->max_qual.qual == 0) {
1393                 unsigned char strength;
1394
1395                 if (result->level > 0)
1396                         strength = 100 - result->level;
1397                 else
1398                         strength = 120 + result->level;
1399
1400                 if (strength > 100)
1401                         strength = 100;
1402
1403                 return strength;
1404         }
1405
1406         return (result->quality * 100) / task->range->max_qual.qual;
1407 }
1408
1409 static unsigned short calculate_channel(struct supplicant_result *result)
1410 {
1411         if (result->frequency < 0)
1412                 return 0;
1413
1414         return (result->frequency - 2407) / 5;
1415 }
1416
1417 static void get_properties(struct supplicant_task *task);
1418
1419 static void properties_reply(DBusPendingCall *call, void *user_data)
1420 {
1421         struct supplicant_task *task = user_data;
1422         struct supplicant_result result;
1423         struct connman_network *network;
1424         DBusMessage *reply;
1425         DBusMessageIter array, dict;
1426         unsigned char strength;
1427         unsigned short channel, frequency;
1428         const char *mode, *security;
1429         char *group = NULL;
1430
1431         DBG("task %p", task);
1432
1433         reply = dbus_pending_call_steal_reply(call);
1434
1435         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1436                 goto unref;
1437
1438         memset(&result, 0, sizeof(result));
1439         result.frequency = -1;
1440         result.quality = -1;
1441         result.level = 0;
1442         result.noise = 0;
1443
1444         dbus_message_iter_init(reply, &array);
1445
1446         dbus_message_iter_recurse(&array, &dict);
1447
1448         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1449                 DBusMessageIter entry, value;
1450                 const char *key;
1451
1452                 dbus_message_iter_recurse(&dict, &entry);
1453                 dbus_message_iter_get_basic(&entry, &key);
1454
1455                 dbus_message_iter_next(&entry);
1456
1457                 dbus_message_iter_recurse(&entry, &value);
1458
1459                 //type = dbus_message_iter_get_arg_type(&value);
1460                 //dbus_message_iter_get_basic(&value, &val);
1461
1462                 /*
1463                  * bssid        : a (97)
1464                  * ssid         : a (97)
1465                  * wpaie        : a (97)
1466                  * rsnie        : a (97)
1467                  * wpsie        : a (97)
1468                  * frequency    : i (105)
1469                  * capabilities : q (113)
1470                  * quality      : i (105)
1471                  * noise        : i (105)
1472                  * level        : i (105)
1473                  * maxrate      : i (105)
1474                  */
1475
1476                 if (g_str_equal(key, "bssid") == TRUE)
1477                         extract_addr(&value, &result);
1478                 else if (g_str_equal(key, "ssid") == TRUE)
1479                         extract_ssid(&value, &result);
1480                 else if (g_str_equal(key, "wpaie") == TRUE)
1481                         extract_wpaie(&value, &result);
1482                 else if (g_str_equal(key, "rsnie") == TRUE)
1483                         extract_rsnie(&value, &result);
1484                 else if (g_str_equal(key, "wpsie") == TRUE)
1485                         extract_wpsie(&value, &result);
1486                 else if (g_str_equal(key, "capabilities") == TRUE)
1487                         extract_capabilites(&value, &result);
1488                 else if (g_str_equal(key, "frequency") == TRUE)
1489                         dbus_message_iter_get_basic(&value, &result.frequency);
1490                 else if (g_str_equal(key, "quality") == TRUE)
1491                         dbus_message_iter_get_basic(&value, &result.quality);
1492                 else if (g_str_equal(key, "noise") == TRUE)
1493                         dbus_message_iter_get_basic(&value, &result.noise);
1494                 else if (g_str_equal(key, "level") == TRUE)
1495                         dbus_message_iter_get_basic(&value, &result.level);
1496                 else if (g_str_equal(key, "maxrate") == TRUE)
1497                         dbus_message_iter_get_basic(&value, &result.maxrate);
1498
1499                 dbus_message_iter_next(&dict);
1500         }
1501
1502         DBG("capabilties %u frequency %d "
1503                         "quality %d noise %d level %d maxrate %d",
1504                                         result.capabilities, result.frequency,
1505                                                 result.quality, result.noise,
1506                                                 result.level, result.maxrate);
1507
1508         if (result.path == NULL)
1509                 goto done;
1510
1511         if (result.path[0] == '\0')
1512                 goto done;
1513
1514         if (result.frequency > 0 && result.frequency < 14)
1515                 result.frequency = 2407 + (5 * result.frequency);
1516         else if (result.frequency == 14)
1517                 result.frequency = 2484;
1518
1519         strength = calculate_strength(task, &result);
1520         channel  = calculate_channel(&result);
1521
1522         frequency = (result.frequency < 0) ? 0 : result.frequency;
1523
1524         if (result.has_8021x == TRUE)
1525                 security = "ieee8021x";
1526         else if (result.has_psk == TRUE)
1527                 security = "psk";
1528         else if (result.has_wep == TRUE)
1529                 security = "wep";
1530         else
1531                 security = "none";
1532
1533         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1534
1535         group = build_group(result.path, result.name,
1536                                         result.ssid, result.ssid_len,
1537                                                         mode, security);
1538
1539         if (result.has_psk == TRUE) {
1540                 if (result.has_rsn == TRUE)
1541                         security = "rsn";
1542                 else if (result.has_wpa == TRUE)
1543                         security = "wpa";
1544         }
1545
1546         network = connman_device_get_network(task->device, result.path);
1547         if (network == NULL) {
1548                 int index;
1549
1550                 network = connman_network_create(result.path,
1551                                                 CONNMAN_NETWORK_TYPE_WIFI);
1552                 if (network == NULL)
1553                         goto done;
1554
1555                 index = connman_device_get_index(task->device);
1556                 connman_network_set_index(network, index);
1557
1558                 connman_network_set_protocol(network,
1559                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1560
1561                 connman_network_set_address(network, result.addr,
1562                                                         result.addr_len);
1563
1564                 if (connman_device_add_network(task->device, network) < 0) {
1565                         connman_network_unref(network);
1566                         goto done;
1567                 }
1568         }
1569
1570         if (result.name != NULL && result.name[0] != '\0')
1571                 connman_network_set_name(network, result.name);
1572
1573         connman_network_set_blob(network, "WiFi.SSID",
1574                                                 result.ssid, result.ssid_len);
1575
1576         connman_network_set_string(network, "WiFi.Mode", mode);
1577
1578         DBG("%s (%s %s) strength %d (%s)",
1579                                 result.name, mode, security, strength,
1580                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1581
1582         connman_network_set_available(network, TRUE);
1583         connman_network_set_strength(network, strength);
1584
1585         connman_network_set_uint16(network, "Frequency", frequency);
1586         connman_network_set_uint16(network, "WiFi.Channel", channel);
1587         connman_network_set_string(network, "WiFi.Security", security);
1588
1589         if (result.ssid != NULL)
1590                 connman_network_set_group(network, group);
1591
1592 done:
1593         g_free(group);
1594
1595         g_free(result.path);
1596         g_free(result.addr);
1597         g_free(result.name);
1598         g_free(result.ssid);
1599
1600 unref:
1601         dbus_message_unref(reply);
1602
1603         dbus_pending_call_unref(call);
1604
1605         get_properties(task);
1606 }
1607
1608 static void get_properties(struct supplicant_task *task)
1609 {
1610         DBusMessage *message;
1611         char *path;
1612
1613         path = g_slist_nth_data(task->scan_results, 0);
1614         if (path == NULL)
1615                 goto noscan;
1616
1617         message = dbus_message_new_method_call(SUPPLICANT_NAME, path,
1618                                                 SUPPLICANT_INTF ".BSSID",
1619                                                                 "properties");
1620
1621         task->scan_results = g_slist_remove(task->scan_results, path);
1622         g_free(path);
1623
1624         if (message == NULL)
1625                 goto noscan;
1626
1627         dbus_message_set_auto_start(message, FALSE);
1628
1629         if (dbus_connection_send_with_reply(connection, message,
1630                                 &task->result_call, TIMEOUT) == FALSE) {
1631                 connman_error("Failed to get network properties");
1632                 dbus_message_unref(message);
1633                 goto noscan;
1634         }
1635
1636         if (task->result_call == NULL) {
1637                 connman_error("D-Bus connection not available");
1638                 dbus_message_unref(message);
1639                 goto noscan;
1640         }
1641
1642         dbus_pending_call_set_notify(task->result_call,
1643                                         properties_reply, task, NULL);
1644
1645         dbus_message_unref(message);
1646
1647         return;
1648
1649 noscan:
1650         task->result_call = NULL;
1651
1652         if (task->scanning == TRUE) {
1653                 connman_device_set_scanning(task->device, FALSE);
1654                 task->scanning = FALSE;
1655         }
1656 }
1657
1658 static void scan_results_reply(DBusPendingCall *call, void *user_data)
1659 {
1660         struct supplicant_task *task = user_data;
1661         DBusMessage *reply;
1662         DBusError error;
1663         char **results;
1664         int i, num_results;
1665
1666         DBG("task %p", task);
1667
1668         reply = dbus_pending_call_steal_reply(call);
1669
1670         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1671                 goto done;
1672
1673         dbus_error_init(&error);
1674
1675         if (dbus_message_get_args(reply, &error,
1676                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1677                                                 &results, &num_results,
1678                                                 DBUS_TYPE_INVALID) == FALSE) {
1679                 if (dbus_error_is_set(&error) == TRUE) {
1680                         connman_error("%s", error.message);
1681                         dbus_error_free(&error);
1682                 } else
1683                         connman_error("Wrong arguments for scan result");
1684                 goto done;
1685         }
1686
1687         if (num_results == 0)
1688                 goto done;
1689
1690         for (i = 0; i < num_results; i++) {
1691                 char *path = g_strdup(results[i]);
1692                 if (path == NULL)
1693                         continue;
1694
1695                 task->scan_results = g_slist_append(task->scan_results, path);
1696         }
1697
1698         g_strfreev(results);
1699
1700         dbus_message_unref(reply);
1701
1702         dbus_pending_call_unref(call);
1703
1704         get_properties(task);
1705
1706         return;
1707
1708 done:
1709         dbus_message_unref(reply);
1710
1711         dbus_pending_call_unref(call);
1712
1713         task->result_call = NULL;
1714
1715         if (task->scanning == TRUE) {
1716                 connman_device_set_scanning(task->device, FALSE);
1717                 task->scanning = FALSE;
1718         }
1719 }
1720
1721 static void scan_results_available(struct supplicant_task *task)
1722 {
1723         DBusMessage *message;
1724
1725         DBG("task %p", task);
1726
1727         if (task->result_call != NULL)
1728                 return;
1729
1730         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1731                                                 SUPPLICANT_INTF ".Interface",
1732                                                         "scanResults");
1733         if (message == NULL)
1734                 return;
1735
1736         dbus_message_set_auto_start(message, FALSE);
1737
1738         if (dbus_connection_send_with_reply(connection, message,
1739                                 &task->result_call, TIMEOUT) == FALSE) {
1740                 connman_error("Failed to request scan result");
1741                 goto done;
1742         }
1743
1744         if (task->result_call == NULL) {
1745                 connman_error("D-Bus connection not available");
1746                 goto done;
1747         }
1748
1749         if (task->scanning == TRUE)
1750                 connman_device_set_scanning(task->device, TRUE);
1751
1752         dbus_pending_call_set_notify(task->result_call,
1753                                         scan_results_reply, task, NULL);
1754
1755 done:
1756         dbus_message_unref(message);
1757 }
1758
1759 static enum supplicant_state string2state(const char *state)
1760 {
1761         if (g_str_equal(state, "INACTIVE") == TRUE)
1762                 return WPA_INACTIVE;
1763         else if (g_str_equal(state, "SCANNING") == TRUE)
1764                 return WPA_SCANNING;
1765         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1766                 return WPA_ASSOCIATING;
1767         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1768                 return WPA_ASSOCIATED;
1769         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1770                 return WPA_GROUP_HANDSHAKE;
1771         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1772                 return WPA_4WAY_HANDSHAKE;
1773         else if (g_str_equal(state, "COMPLETED") == TRUE)
1774                 return WPA_COMPLETED;
1775         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1776                 return WPA_DISCONNECTED;
1777         else
1778                 return WPA_INVALID;
1779 }
1780
1781 static int task_connect(struct supplicant_task *task)
1782 {
1783         const char *address, *security, *passphrase;
1784         const void *ssid;
1785         unsigned int ssid_len;
1786         int err;
1787
1788         connman_inet_ifup(task->ifindex);
1789
1790         address = connman_network_get_string(task->network, "Address");
1791         security = connman_network_get_string(task->network, "WiFi.Security");
1792         passphrase = connman_network_get_string(task->network, "WiFi.Passphrase");
1793
1794         ssid = connman_network_get_blob(task->network, "WiFi.SSID", &ssid_len);
1795
1796         DBG("address %s security %s", address, security);
1797
1798         if (security == NULL)
1799                 return -EINVAL;
1800
1801         if (passphrase == NULL && g_str_equal(security, "none") == FALSE &&
1802                                 g_str_equal(security, "ieee8021x") == FALSE)
1803                 return -EINVAL;
1804
1805         remove_network(task);
1806
1807         set_ap_scan(task);
1808
1809         add_network(task);
1810
1811         err = set_network(task, ssid, ssid_len, address, security, passphrase);
1812         if (err < 0)
1813                 return err;
1814
1815         err = select_network(task);
1816         if (err < 0)
1817                 return err;
1818
1819         return -EINPROGRESS;
1820 }
1821
1822 static void scanning(struct supplicant_task *task, DBusMessage *msg)
1823 {
1824         DBusError error;
1825         dbus_bool_t scanning;
1826
1827         dbus_error_init(&error);
1828
1829         if (dbus_message_get_args(msg, &error, DBUS_TYPE_BOOLEAN, &scanning,
1830                                                 DBUS_TYPE_INVALID) == FALSE) {
1831                 if (dbus_error_is_set(&error) == TRUE) {
1832                         connman_error("%s", error.message);
1833                         dbus_error_free(&error);
1834                 } else
1835                         connman_error("Wrong arguments for scanning");
1836                 return;
1837         }
1838
1839         connman_info("%s scanning %s", task->ifname,
1840                                 scanning == TRUE ? "started" : "finished");
1841 }
1842
1843 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1844 {
1845         DBusError error;
1846         const char *newstate, *oldstate;
1847         unsigned char bssid[ETH_ALEN];
1848         unsigned int bssid_len;
1849         enum supplicant_state state, prevstate;
1850
1851         dbus_error_init(&error);
1852
1853         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1854                                                 DBUS_TYPE_STRING, &oldstate,
1855                                                 DBUS_TYPE_INVALID) == FALSE) {
1856                 if (dbus_error_is_set(&error) == TRUE) {
1857                         connman_error("%s", error.message);
1858                         dbus_error_free(&error);
1859                 } else
1860                         connman_error("Wrong arguments for state change");
1861                 return;
1862         }
1863
1864         DBG("state %s ==> %s", oldstate, newstate);
1865
1866         connman_info("%s %s%s", task->ifname, newstate,
1867                                 task->scanning == TRUE ? " (scanning)" : "");
1868
1869         state = string2state(newstate);
1870         if (state == WPA_INVALID)
1871                 return;
1872
1873         if (task->scanning == TRUE && state != WPA_SCANNING) {
1874                 connman_device_cleanup_scanning(task->device);
1875                 task->scanning = FALSE;
1876         }
1877
1878         prevstate = task->state;
1879         task->state = state;
1880
1881         if (task->network == NULL)
1882                 return;
1883
1884         switch (task->state) {
1885         case WPA_COMPLETED:
1886                 switch (prevstate) {
1887                 case WPA_ASSOCIATED:
1888                 case WPA_GROUP_HANDSHAKE:
1889                         break;
1890                 default:
1891                         goto badstate;
1892                 }
1893
1894                 /* reset scan trigger and schedule background scan */
1895                 connman_device_schedule_scan(task->device);
1896
1897                 if (get_bssid(task->device, bssid, &bssid_len) == 0)
1898                         connman_network_set_address(task->network,
1899                                                         bssid, bssid_len);
1900
1901                 /* carrier on */
1902                 connman_network_set_method(task->network,
1903                                 CONNMAN_IPCONFIG_METHOD_DHCP);
1904                 connman_network_set_connected(task->network, TRUE);
1905                 break;
1906
1907         case WPA_ASSOCIATING:
1908                 switch (prevstate) {
1909                 case WPA_COMPLETED:
1910                         break;
1911                 case WPA_SCANNING:
1912                         connman_network_set_associating(task->network, TRUE);
1913                         break;
1914                 default:
1915                         goto badstate;
1916                 }
1917                 break;
1918
1919         case WPA_INACTIVE:
1920                 switch (prevstate) {
1921                 case WPA_SCANNING:
1922                 case WPA_DISCONNECTED:
1923                         break;
1924                 default:
1925                         goto badstate;
1926                 }
1927                 /* fall through */
1928
1929         case WPA_DISCONNECTED:
1930                 /* carrier off */
1931                 connman_network_set_connected(task->network, FALSE);
1932
1933                 if (task->disconnecting == TRUE) {
1934                         connman_network_unref(task->network);
1935                         task->disconnecting = FALSE;
1936
1937                         if (task->pending_network != NULL) {
1938                                 task->network = task->pending_network;
1939                                 task->pending_network = NULL;
1940                                 task_connect(task);
1941                         } else
1942                                 task->network = NULL;
1943                 }
1944                 break;
1945
1946         default:
1947                 connman_network_set_associating(task->network, FALSE);
1948                 break;
1949         }
1950
1951         return;
1952
1953 badstate:
1954         connman_error("%s invalid state change %s -> %s", task->ifname,
1955                                                         oldstate, newstate);
1956 }
1957
1958 static gboolean supplicant_filter(DBusConnection *conn,
1959                                                 DBusMessage *msg, void *data)
1960 {
1961         struct supplicant_task *task;
1962         const char *member, *path;
1963
1964         member = dbus_message_get_member(msg);
1965         if (member == NULL)
1966                 return TRUE;
1967
1968         path = dbus_message_get_path(msg);
1969         if (path == NULL)
1970                 return TRUE;
1971
1972         task = find_task_by_path(path);
1973         if (task == NULL)
1974                 return TRUE;
1975
1976         DBG("task %p member %s", task, member);
1977
1978         if (g_str_equal(member, "ScanResultsAvailable") == TRUE)
1979                 scan_results_available(task);
1980         else if (g_str_equal(member, "Scanning") == TRUE)
1981                 scanning(task, msg);
1982         else if (g_str_equal(member, "StateChange") == TRUE)
1983                 state_change(task, msg);
1984
1985         return TRUE;
1986 }
1987
1988 int supplicant_start(struct connman_device *device)
1989 {
1990         struct supplicant_task *task;
1991         int err;
1992
1993         DBG("device %p", device);
1994
1995         task = g_try_new0(struct supplicant_task, 1);
1996         if (task == NULL)
1997                 return -ENOMEM;
1998
1999         task->ifindex = connman_device_get_index(device);
2000         task->ifname = connman_inet_ifname(task->ifindex);
2001
2002         if (task->ifname == NULL) {
2003                 err = -ENOMEM;
2004                 goto failed;
2005         }
2006
2007         task->mac80211 = connman_inet_is_mac80211(task->ifindex);
2008         if (task->mac80211 == FALSE)
2009                 connman_warn("Enabling quirks for unsupported driver");
2010
2011         task->range = g_try_malloc0(sizeof(struct iw_range));
2012         if (task->range == NULL) {
2013                 err = -ENOMEM;
2014                 goto failed;
2015         }
2016
2017         err = get_range(task);
2018         if (err < 0)
2019                 goto failed;
2020
2021         task->device = connman_device_ref(device);
2022
2023         task->created = FALSE;
2024         task->scanning = FALSE;
2025         task->state = WPA_INVALID;
2026         task->disconnecting = FALSE;
2027         task->pending_network = NULL;
2028
2029         task_list = g_slist_append(task_list, task);
2030
2031         return create_interface(task);
2032
2033 failed:
2034         g_free(task->range);
2035         g_free(task->ifname);
2036         g_free(task);
2037
2038         return err;
2039 }
2040
2041 int supplicant_stop(struct connman_device *device)
2042 {
2043         int index = connman_device_get_index(device);
2044         struct supplicant_task *task;
2045
2046         DBG("device %p", device);
2047
2048         task = find_task_by_index(index);
2049         if (task == NULL)
2050                 return -ENODEV;
2051
2052         g_free(task->range);
2053
2054         task_list = g_slist_remove(task_list, task);
2055
2056         if (task->scan_call != NULL) {
2057                 dbus_pending_call_cancel(task->scan_call);
2058                 task->scan_call = NULL;
2059         }
2060
2061         if (task->result_call != NULL) {
2062                 dbus_pending_call_cancel(task->result_call);
2063                 task->result_call = NULL;
2064         }
2065
2066         if (task->scanning == TRUE)
2067                 connman_device_set_scanning(task->device, FALSE);
2068
2069         remove_network(task);
2070
2071         disconnect_network(task);
2072
2073         return remove_interface(task);
2074 }
2075
2076 int supplicant_scan(struct connman_device *device)
2077 {
2078         int index = connman_device_get_index(device);
2079         struct supplicant_task *task;
2080         int err;
2081
2082         DBG("device %p", device);
2083
2084         task = find_task_by_index(index);
2085         if (task == NULL)
2086                 return -ENODEV;
2087
2088         switch (task->state) {
2089         case WPA_SCANNING:
2090                 return -EALREADY;
2091         case WPA_ASSOCIATING:
2092         case WPA_ASSOCIATED:
2093         case WPA_4WAY_HANDSHAKE:
2094         case WPA_GROUP_HANDSHAKE:
2095                 return -EBUSY;
2096         default:
2097                 break;
2098         }
2099
2100         task->scanning = TRUE;
2101
2102         err = initiate_scan(task);
2103         if (err < 0) {
2104                 if (err == -EINPROGRESS)
2105                         return 0;
2106
2107                 task->scanning = FALSE;
2108                 return err;
2109         }
2110
2111         connman_device_set_scanning(task->device, TRUE);
2112
2113         return 0;
2114 }
2115
2116 int supplicant_connect(struct connman_network *network)
2117 {
2118         struct supplicant_task *task;
2119         int index;
2120
2121         DBG("network %p", network);
2122
2123         index = connman_network_get_index(network);
2124
2125         task = find_task_by_index(index);
2126         if (task == NULL)
2127                 return -ENODEV;
2128
2129         if (task->disconnecting == TRUE)
2130                 task->pending_network = connman_network_ref(network);
2131         else {
2132                 task->network = connman_network_ref(network);
2133                 return task_connect(task);
2134         }
2135
2136         return -EINPROGRESS;
2137 }
2138
2139 int supplicant_disconnect(struct connman_network *network)
2140 {
2141         struct supplicant_task *task;
2142         int index;
2143
2144         DBG("network %p", network);
2145
2146         index = connman_network_get_index(network);
2147
2148         task = find_task_by_index(index);
2149         if (task == NULL)
2150                 return -ENODEV;
2151
2152         if (task->disconnecting == TRUE)
2153                 return -EALREADY;
2154
2155         remove_network(task);
2156
2157         disconnect_network(task);
2158
2159         task->disconnecting = TRUE;
2160
2161         return 0;
2162 }
2163
2164 static void supplicant_activate(DBusConnection *conn)
2165 {
2166         DBusMessage *message;
2167
2168         DBG("conn %p", conn);
2169
2170         message = dbus_message_new_method_call(SUPPLICANT_NAME, "/",
2171                                 DBUS_INTERFACE_INTROSPECTABLE, "Introspect");
2172         if (message == NULL)
2173                 return;
2174
2175         dbus_message_set_no_reply(message, TRUE);
2176
2177         dbus_connection_send(conn, message, NULL);
2178
2179         dbus_message_unref(message);
2180 }
2181
2182 static GSList *driver_list = NULL;
2183
2184 static void supplicant_probe(DBusConnection *conn, void *user_data)
2185 {
2186         GSList *list;
2187
2188         DBG("conn %p", conn);
2189
2190         for (list = driver_list; list; list = list->next) {
2191                 struct supplicant_driver *driver = list->data;
2192
2193                 DBG("driver %p name %s", driver, driver->name);
2194
2195                 if (driver->probe)
2196                         driver->probe();
2197         }
2198 }
2199
2200 static void supplicant_remove(DBusConnection *conn, void *user_data)
2201 {
2202         GSList *list;
2203
2204         DBG("conn %p", conn);
2205
2206         for (list = driver_list; list; list = list->next) {
2207                 struct supplicant_driver *driver = list->data;
2208
2209                 DBG("driver %p name %s", driver, driver->name);
2210
2211                 if (driver->remove)
2212                         driver->remove();
2213         }
2214 }
2215
2216 static guint watch;
2217 static guint iface_watch;
2218
2219 static int supplicant_create(void)
2220 {
2221         if (g_slist_length(driver_list) > 0)
2222                 return 0;
2223
2224         connection = connman_dbus_get_connection();
2225         if (connection == NULL)
2226                 return -EIO;
2227
2228         DBG("connection %p", connection);
2229
2230         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
2231                         supplicant_probe, supplicant_remove, NULL, NULL);
2232
2233         iface_watch = g_dbus_add_signal_watch(connection, NULL, NULL,
2234                                                 SUPPLICANT_INTF ".Interface",
2235                                                 NULL, supplicant_filter,
2236                                                 NULL, NULL);
2237
2238         if (watch == 0 || iface_watch == 0) {
2239                 g_dbus_remove_watch(connection, watch);
2240                 g_dbus_remove_watch(connection, iface_watch);
2241                 return -EIO;
2242         }
2243
2244         return 0;
2245 }
2246
2247 static void supplicant_destroy(void)
2248 {
2249         if (g_slist_length(driver_list) > 0)
2250                 return;
2251
2252         DBG("connection %p", connection);
2253
2254         g_dbus_remove_watch(connection, watch);
2255         g_dbus_remove_watch(connection, iface_watch);
2256
2257         dbus_connection_unref(connection);
2258         connection = NULL;
2259 }
2260
2261 int supplicant_register(struct supplicant_driver *driver)
2262 {
2263         int err;
2264
2265         DBG("driver %p name %s", driver, driver->name);
2266
2267         err = supplicant_create();
2268         if (err < 0)
2269                 return err;
2270
2271         driver_list = g_slist_append(driver_list, driver);
2272
2273         supplicant_activate(connection);
2274
2275         return 0;
2276 }
2277
2278 void supplicant_unregister(struct supplicant_driver *driver)
2279 {
2280         DBG("driver %p name %s", driver, driver->name);
2281
2282         supplicant_remove(connection, NULL);
2283
2284         driver_list = g_slist_remove(driver_list, driver);
2285
2286         supplicant_destroy();
2287 }