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_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         if (reply == NULL)
 317                 return;
 318
 319         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
 320                 goto failed;
 321
 322         dbus_error_init(&error);
 323
 324         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 325                                                 DBUS_TYPE_INVALID) == FALSE) {
 326                 if (dbus_error_is_set(&error) == TRUE) {
 327                         connman_error("%s", error.message);
 328                         dbus_error_free(&error);
 329                 } else
 330                         connman_error("Wrong arguments for add interface");
 331                 goto failed;
 332         }
 333
 334         DBG("path %s", path);
 335
 336         task->path = g_strdup(path);
 337         task->created = TRUE;
 338
 339         connman_device_set_powered(task->device, TRUE);
 340
 341         dbus_message_unref(reply);
 342
 343         return;
 344
 345 failed:
 346         dbus_message_unref(reply);
 347
 348         task_list = g_slist_remove(task_list, task);
 349
 350         connman_device_unref(task->device);
 351
 352         free_task(task);
 353 }
 354
 355 static int add_interface(struct supplicant_task *task)
 356 {
 357         const char *driver = connman_option_get_string("wifi");
 358         DBusMessage *message;
 359         DBusMessageIter array, dict;
 360         DBusPendingCall *call;
 361
 362         DBG("task %p", task);
 363
 364         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 365                                         SUPPLICANT_INTF, "addInterface");
 366         if (message == NULL)
 367                 return -ENOMEM;
 368
 369         dbus_message_set_auto_start(message, FALSE);
 370
 371         dbus_message_iter_init_append(message, &array);
 372
 373         dbus_message_iter_append_basic(&array,
 374                                         DBUS_TYPE_STRING, &task->ifname);
 375
 376         connman_dbus_dict_open(&array, &dict);
 377
 378         connman_dbus_dict_append_basic(&dict, "driver",
 379                                                 DBUS_TYPE_STRING, &driver);
 380
 381         connman_dbus_dict_close(&array, &dict);
 382
 383         if (dbus_connection_send_with_reply(connection, message,
 384                                                 &call, TIMEOUT) == FALSE) {
 385                 connman_error("Failed to add interface");
 386                 dbus_message_unref(message);
 387                 return -EIO;
 388         }
 389
 390         if (call == NULL) {
 391                 connman_error("D-Bus connection not available");
 392                 dbus_message_unref(message);
 393                 return -EIO;
 394         }
 395
 396         dbus_pending_call_set_notify(call, add_interface_reply, task, NULL);
 397
 398         dbus_message_unref(message);
 399
 400         return -EINPROGRESS;
 401 }
 402
 403 static void get_interface_reply(DBusPendingCall *call, void *user_data)
 404 {
 405         struct supplicant_task *task = user_data;
 406         DBusMessage *reply;
 407         DBusError error;
 408         const char *path;
 409
 410         DBG("task %p", task);
 411
 412         reply = dbus_pending_call_steal_reply(call);
 413         if (reply == NULL)
 414                 return;
 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
 444 static int create_interface(struct supplicant_task *task)
 445 {
 446         DBusMessage *message;
 447         DBusPendingCall *call;
 448
 449         DBG("task %p", task);
 450
 451         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 452                                         SUPPLICANT_INTF, "getInterface");
 453         if (message == NULL)
 454                 return -ENOMEM;
 455
 456         dbus_message_set_auto_start(message, FALSE);
 457
 458         dbus_message_append_args(message, DBUS_TYPE_STRING, &task->ifname,
 459                                                         DBUS_TYPE_INVALID);
 460
 461         if (dbus_connection_send_with_reply(connection, message,
 462                                                 &call, TIMEOUT) == FALSE) {
 463                 connman_error("Failed to get interface");
 464                 dbus_message_unref(message);
 465                 return -EIO;
 466         }
 467
 468         if (call == NULL) {
 469                 connman_error("D-Bus connection not available");
 470                 dbus_message_unref(message);
 471                 return -EIO;
 472         }
 473
 474         dbus_pending_call_set_notify(call, get_interface_reply, task, NULL);
 475
 476         dbus_message_unref(message);
 477
 478         return -EINPROGRESS;
 479 }
 480
 481 static void remove_interface_reply(DBusPendingCall *call, void *user_data)
 482 {
 483         struct supplicant_task *task = user_data;
 484         DBusMessage *reply;
 485
 486         DBG("task %p", task);
 487
 488         reply = dbus_pending_call_steal_reply(call);
 489
 490         connman_device_set_powered(task->device, FALSE);
 491
 492         connman_device_unref(task->device);
 493
 494         connman_inet_ifdown(task->ifindex);
 495
 496         free_task(task);
 497
 498         dbus_message_unref(reply);
 499 }
 500
 501 static int remove_interface(struct supplicant_task *task)
 502 {
 503         DBusMessage *message;
 504         DBusPendingCall *call;
 505
 506         DBG("task %p", task);
 507
 508 #if 0
 509         if (task->created == FALSE) {
 510                 connman_device_set_powered(task->device, FALSE);
 511                 return 0;
 512         }
 513 #endif
 514
 515         message = dbus_message_new_method_call(SUPPLICANT_NAME, SUPPLICANT_PATH,
 516                                         SUPPLICANT_INTF, "removeInterface");
 517         if (message == NULL)
 518                 return -ENOMEM;
 519
 520         dbus_message_set_auto_start(message, FALSE);
 521
 522         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->path,
 523                                                         DBUS_TYPE_INVALID);
 524
 525         if (dbus_connection_send_with_reply(connection, message,
 526                                                 &call, TIMEOUT) == FALSE) {
 527                 connman_error("Failed to remove interface");
 528                 dbus_message_unref(message);
 529                 return -EIO;
 530         }
 531
 532         if (call == NULL) {
 533                 connman_error("D-Bus connection not available");
 534                 dbus_message_unref(message);
 535                 return -EIO;
 536         }
 537
 538         dbus_pending_call_set_notify(call, remove_interface_reply, task, NULL);
 539
 540         dbus_message_unref(message);
 541
 542         return -EINPROGRESS;
 543 }
 544
 545 static int set_ap_scan(struct supplicant_task *task)
 546 {
 547         DBusMessage *message, *reply;
 548         DBusError error;
 549         guint32 ap_scan = 1;
 550
 551         DBG("task %p", task);
 552
 553         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 554                                 SUPPLICANT_INTF ".Interface", "setAPScan");
 555         if (message == NULL)
 556                 return -ENOMEM;
 557
 558         dbus_message_set_auto_start(message, FALSE);
 559
 560         dbus_message_append_args(message, DBUS_TYPE_UINT32, &ap_scan,
 561                                                         DBUS_TYPE_INVALID);
 562
 563         dbus_error_init(&error);
 564
 565         reply = dbus_connection_send_with_reply_and_block(connection,
 566                                                         message, -1, &error);
 567         if (reply == NULL) {
 568                 if (dbus_error_is_set(&error) == TRUE) {
 569                         connman_error("%s", error.message);
 570                         dbus_error_free(&error);
 571                 } else
 572                         connman_error("Failed to set AP scan");
 573                 dbus_message_unref(message);
 574                 return -EIO;
 575         }
 576
 577         dbus_message_unref(message);
 578
 579         dbus_message_unref(reply);
 580
 581         return 0;
 582 }
 583
 584 static int add_network(struct supplicant_task *task)
 585 {
 586         DBusMessage *message, *reply;
 587         DBusError error;
 588         const char *path;
 589
 590         DBG("task %p", task);
 591
 592         if (task->netpath != NULL)
 593                 return -EALREADY;
 594
 595         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 596                                 SUPPLICANT_INTF ".Interface", "addNetwork");
 597         if (message == NULL)
 598                 return -ENOMEM;
 599
 600         dbus_message_set_auto_start(message, FALSE);
 601
 602         dbus_error_init(&error);
 603
 604         reply = dbus_connection_send_with_reply_and_block(connection,
 605                                                         message, -1, &error);
 606         if (reply == NULL) {
 607                 if (dbus_error_is_set(&error) == TRUE) {
 608                         connman_error("%s", error.message);
 609                         dbus_error_free(&error);
 610                 } else
 611                         connman_error("Failed to add network");
 612                 dbus_message_unref(message);
 613                 return -EIO;
 614         }
 615
 616         dbus_message_unref(message);
 617
 618         dbus_error_init(&error);
 619
 620         if (dbus_message_get_args(reply, &error, DBUS_TYPE_OBJECT_PATH, &path,
 621                                                 DBUS_TYPE_INVALID) == FALSE) {
 622                 if (dbus_error_is_set(&error) == TRUE) {
 623                         connman_error("%s", error.message);
 624                         dbus_error_free(&error);
 625                 } else
 626                         connman_error("Wrong arguments for network");
 627                 dbus_message_unref(reply);
 628                 return -EIO;
 629         }
 630
 631         DBG("path %s", path);
 632
 633         task->netpath = g_strdup(path);
 634
 635         dbus_message_unref(reply);
 636
 637         return 0;
 638 }
 639
 640 static int remove_network(struct supplicant_task *task)
 641 {
 642         DBusMessage *message, *reply;
 643         DBusError error;
 644
 645         DBG("task %p", task);
 646
 647         if (task->netpath == NULL)
 648                 return -EINVAL;
 649
 650         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 651                                 SUPPLICANT_INTF ".Interface", "removeNetwork");
 652         if (message == NULL)
 653                 return -ENOMEM;
 654
 655         dbus_message_set_auto_start(message, FALSE);
 656
 657         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 658                                                         DBUS_TYPE_INVALID);
 659
 660         dbus_error_init(&error);
 661
 662         reply = dbus_connection_send_with_reply_and_block(connection,
 663                                                         message, -1, &error);
 664         if (reply == NULL) {
 665                 if (dbus_error_is_set(&error) == TRUE) {
 666                         connman_error("%s", error.message);
 667                         dbus_error_free(&error);
 668                 } else
 669                         connman_error("Failed to remove network");
 670                 dbus_message_unref(message);
 671                 return -EIO;
 672         }
 673
 674         dbus_message_unref(message);
 675
 676         dbus_message_unref(reply);
 677
 678         g_free(task->netpath);
 679         task->netpath = NULL;
 680
 681         return 0;
 682 }
 683
 684 static int select_network(struct supplicant_task *task)
 685 {
 686         DBusMessage *message, *reply;
 687         DBusError error;
 688
 689         DBG("task %p", task);
 690
 691         if (task->netpath == NULL)
 692                 return -EINVAL;
 693
 694         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 695                                 SUPPLICANT_INTF ".Interface", "selectNetwork");
 696         if (message == NULL)
 697                 return -ENOMEM;
 698
 699         dbus_message_set_auto_start(message, FALSE);
 700
 701         dbus_message_append_args(message, DBUS_TYPE_OBJECT_PATH, &task->netpath,
 702                                                         DBUS_TYPE_INVALID);
 703
 704         dbus_error_init(&error);
 705
 706         reply = dbus_connection_send_with_reply_and_block(connection,
 707                                                         message, -1, &error);
 708         if (reply == NULL) {
 709                 if (dbus_error_is_set(&error) == TRUE) {
 710                         connman_error("%s", error.message);
 711                         dbus_error_free(&error);
 712                 } else
 713                         connman_error("Failed to select network");
 714                 dbus_message_unref(message);
 715                 return -EIO;
 716         }
 717
 718         dbus_message_unref(message);
 719
 720         dbus_message_unref(reply);
 721
 722         return 0;
 723 }
 724
 725 static int disconnect_network(struct supplicant_task *task)
 726 {
 727         DBusMessage *message, *reply;
 728         DBusError error;
 729
 730         DBG("task %p", task);
 731
 732         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
 733                                 SUPPLICANT_INTF ".Interface", "disconnect");
 734         if (message == NULL)
 735                 return -ENOMEM;
 736
 737         dbus_message_set_auto_start(message, FALSE);
 738
 739         dbus_error_init(&error);
 740
 741         reply = dbus_connection_send_with_reply_and_block(connection,
 742                                                         message, -1, &error);
 743         if (reply == NULL) {
 744                 if (dbus_error_is_set(&error) == TRUE) {
 745                         connman_error("%s", error.message);
 746                         dbus_error_free(&error);
 747                 } else
 748                         connman_error("Failed to disconnect network");
 749                 dbus_message_unref(message);
 750                 return -EIO;
 751         }
 752
 753         dbus_message_unref(message);
 754
 755         dbus_message_unref(reply);
 756
 757         return 0;
 758 }
 759
 760 static int set_network_tls(struct connman_network *network,
 761                            DBusMessageIter *dict)
 762 {
 763         const char *private_key, *client_cert, *ca_cert;
 764         const char *private_key_password;
 765
 766         /*
 767          * For TLS, we at least need a key, the client cert,
 768          * and a passhprase.
 769          * Server cert is optional.
 770          */
 771         client_cert = connman_network_get_string(network,
 772                                                 "WiFi.ClientCertFile");
 773         if (client_cert == NULL)
 774                 return -EINVAL;
 775
 776         private_key = connman_network_get_string(network,
 777                                                 "WiFi.PrivateKeyFile");
 778         if (private_key == NULL)
 779                 return -EINVAL;
 780
 781         private_key_password = connman_network_get_string(network,
 782                                                 "WiFi.PrivateKeyPassphrase");
 783         if (private_key_password == NULL)
 784                 return -EINVAL;
 785
 786         ca_cert = connman_network_get_string(network, "WiFi.CACertFile");
 787         if (ca_cert)
 788                 connman_dbus_dict_append_basic(dict, "ca_cert",
 789                                                 DBUS_TYPE_STRING, &ca_cert);
 790
 791         DBG("client cert %s private key %s", client_cert, private_key);
 792
 793         connman_dbus_dict_append_basic(dict, "private_key",
 794                                                 DBUS_TYPE_STRING, &private_key);
 795         connman_dbus_dict_append_basic(dict, "private_key_passwd",
 796                                                         DBUS_TYPE_STRING,
 797                                                         &private_key_password);
 798         connman_dbus_dict_append_basic(dict, "client_cert",
 799                                                 DBUS_TYPE_STRING, &client_cert);
 800
 801         return 0;
 802 }
 803
 804 static int set_network_peap(struct connman_network *network,
 805                             DBusMessageIter *dict, const char *passphrase)
 806 {
 807         const char *client_cert, *ca_cert, *phase2;
 808         char *phase2_auth;
 809
 810         /*
 811          * For PEAP, we at least need the sever cert, a 2nd
 812          * phase authentication and a passhprase.
 813          * Client cert is optional although strongly required
 814          * When setting the client cert, we then need a private
 815          * key as well.
 816          */
 817         ca_cert = connman_network_get_string(network, "WiFi.CACertFile");
 818         if (ca_cert == NULL)
 819                 return -EINVAL;
 820
 821         phase2 = connman_network_get_string(network, "WiFi.Phase2");
 822         if (phase2 == NULL)
 823                 return -EINVAL;
 824
 825         DBG("CA cert %s phase2 auth %s", ca_cert, phase2);
 826
 827         client_cert = connman_network_get_string(network,
 828                                                         "WiFi.ClientCertFile");
 829         if (client_cert) {
 830                 const char *private_key, *private_key_password;
 831
 832                 private_key = connman_network_get_string(network,
 833                                                         "WiFi.PrivateKeyFile");
 834                 if (private_key == NULL)
 835                         return -EINVAL;
 836
 837                 private_key_password =
 838                         connman_network_get_string(network,
 839                                                 "WiFi.PrivateKeyPassphrase");
 840                 if (private_key_password == NULL)
 841                         return -EINVAL;
 842
 843                 connman_dbus_dict_append_basic(dict, "client_cert",
 844                                                 DBUS_TYPE_STRING, &client_cert);
 845
 846                 connman_dbus_dict_append_basic(dict, "private_key",
 847                                                 DBUS_TYPE_STRING, &private_key);
 848
 849                 connman_dbus_dict_append_basic(dict, "private_key_passwd",
 850                                                         DBUS_TYPE_STRING,
 851                                                         &private_key_password);
 852
 853                 DBG("client cert %s private key %s", client_cert, private_key);
 854         }
 855
 856         phase2_auth = g_strdup_printf("\"auth=%s\"", phase2);
 857
 858         connman_dbus_dict_append_basic(dict, "password",
 859                                                 DBUS_TYPE_STRING, &passphrase);
 860
 861         connman_dbus_dict_append_basic(dict, "ca_cert",
 862                                                 DBUS_TYPE_STRING, &ca_cert);
 863
 864         connman_dbus_dict_append_basic(dict, "phase2",
 865                                                 DBUS_TYPE_STRING, &phase2_auth);
 866
 867         g_free(phase2_auth);
 868
 869         return 0;
 870 }
 871
 872 static int set_network(struct supplicant_task *task,
 873                                 const unsigned char *network, int len,
 874                                 const char *address, const char *security,
 875                                                         const char *passphrase)
 876 {
 877         DBusMessage *message, *reply;
 878         DBusMessageIter array, dict;
 879         DBusError error;
 880         dbus_uint32_t scan_ssid = 1;
 881
 882         DBG("task %p", task);
 883
 884         if (task->netpath == NULL)
 885                 return -EINVAL;
 886
 887         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->netpath,
 888                                         SUPPLICANT_INTF ".Network", "set");
 889         if (message == NULL)
 890                 return -ENOMEM;
 891
 892         dbus_message_set_auto_start(message, FALSE);
 893
 894         dbus_message_iter_init_append(message, &array);
 895
 896         connman_dbus_dict_open(&array, &dict);
 897
 898         connman_dbus_dict_append_basic(&dict, "scan_ssid",
 899                                          DBUS_TYPE_UINT32, &scan_ssid);
 900
 901         if (network)
 902                 connman_dbus_dict_append_fixed_array(&dict, "ssid",
 903                                                 DBUS_TYPE_BYTE, &network, len);
 904         else if (address)
 905                 connman_dbus_dict_append_basic(&dict, "bssid",
 906                                                 DBUS_TYPE_STRING, &address);
 907
 908         if (g_ascii_strcasecmp(security, "psk") == 0 ||
 909                                 g_ascii_strcasecmp(security, "wpa") == 0 ||
 910                                 g_ascii_strcasecmp(security, "rsn") == 0) {
 911                 const char *key_mgmt = "WPA-PSK";
 912                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 913                                                 DBUS_TYPE_STRING, &key_mgmt);
 914
 915                 if (passphrase && strlen(passphrase) > 0)
 916                         connman_dbus_dict_append_basic(&dict, "psk",
 917                                                 DBUS_TYPE_STRING, &passphrase);
 918         } else if (g_ascii_strcasecmp(security, "ieee8021x") == 0) {
 919                 struct connman_network *network = task->network;
 920                 const char *key_mgmt = "WPA-EAP", *eap, *identity;
 921                 char *eap_value;
 922
 923                 /*
 924                  * If our private key password is unset,
 925                  * we use the supplied passphrase. That is needed
 926                  * for PEAP where 2 passphrases (identity and client
 927                  * cert may have to be provided.
 928                  */
 929                 if (connman_network_get_string(network,
 930                                         "WiFi.PrivateKeyPassphrase") == NULL)
 931                         connman_network_set_string(network,
 932                                                 "WiFi.PrivateKeyPassphrase",
 933                                                                 passphrase);
 934
 935                 eap = connman_network_get_string(network, "WiFi.EAP");
 936                 if (eap == NULL)
 937                         goto invalid;
 938
 939                 /* We must have an identity for both PEAP and TLS */
 940                 identity = connman_network_get_string(network, "WiFi.Identity");
 941                 if (identity == NULL)
 942                         goto invalid;
 943
 944                 DBG("key_mgmt %s eap %s identity %s", key_mgmt, eap, identity);
 945
 946                 if (g_strcmp0(eap, "tls") == 0) {
 947                         int err;
 948
 949                         err = set_network_tls(network, &dict);
 950                         if (err < 0) {
 951                                 dbus_message_unref(message);
 952                                 return err;
 953                         }
 954                 } else if (g_strcmp0(eap, "peap") == 0) {
 955                         int err;
 956
 957                         err = set_network_peap(network, &dict, passphrase);
 958                         if (err < 0) {
 959                                 dbus_message_unref(message);
 960                                 return err;
 961                         }
 962                 } else {
 963                         connman_error("Unknown EAP %s", eap);
 964                         goto invalid;
 965                 }
 966
 967                 /* wpa_supplicant only accepts upper case EAPs */
 968                 eap_value = g_ascii_strup(eap, -1);
 969
 970                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 971                                                         DBUS_TYPE_STRING,
 972                                                         &key_mgmt);
 973                 connman_dbus_dict_append_basic(&dict, "eap",
 974                                                         DBUS_TYPE_STRING,
 975                                                         &eap_value);
 976                 connman_dbus_dict_append_basic(&dict, "identity",
 977                                                         DBUS_TYPE_STRING,
 978                                                         &identity);
 979
 980                 g_free(eap_value);
 981
 982         } else if (g_ascii_strcasecmp(security, "wep") == 0) {
 983                 const char *key_mgmt = "NONE";
 984                 const char *auth_alg = "OPEN";
 985                 const char *key_index = "0";
 986
 987                 if (task->mac80211 == TRUE)
 988                         auth_alg = "OPEN SHARED";
 989
 990                 connman_dbus_dict_append_basic(&dict, "auth_alg",
 991                                                 DBUS_TYPE_STRING, &auth_alg);
 992
 993                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
 994                                                 DBUS_TYPE_STRING, &key_mgmt);
 995
 996                 if (passphrase) {
 997                         int size = strlen(passphrase);
 998                         if (size == 10 || size == 26) {
 999                                 unsigned char *key = malloc(13);
1000                                 char tmp[3];
1001                                 int i;
1002                                 memset(tmp, 0, sizeof(tmp));
1003                                 if (key == NULL)
1004                                         size = 0;
1005                                 for (i = 0; i < size / 2; i++) {
1006                                         memcpy(tmp, passphrase + (i * 2), 2);
1007                                         key[i] = (unsigned char) strtol(tmp,
1008                                                                 NULL, 16);
1009                                 }
1010                                 connman_dbus_dict_append_fixed_array(&dict,
1011                                                 "wep_key0", DBUS_TYPE_BYTE,
1012                                                         &key, size / 2);
1013                                 free(key);
1014                         } else
1015                                 connman_dbus_dict_append_basic(&dict,
1016                                                 "wep_key0", DBUS_TYPE_STRING,
1017                                                                 &passphrase);
1018
1019                         connman_dbus_dict_append_basic(&dict, "wep_tx_keyidx",
1020                                                 DBUS_TYPE_STRING, &key_index);
1021                 }
1022         } else {
1023                 const char *key_mgmt = "NONE";
1024                 connman_dbus_dict_append_basic(&dict, "key_mgmt",
1025                                                 DBUS_TYPE_STRING, &key_mgmt);
1026         }
1027
1028         connman_dbus_dict_close(&array, &dict);
1029
1030         dbus_error_init(&error);
1031
1032         reply = dbus_connection_send_with_reply_and_block(connection,
1033                                                         message, -1, &error);
1034         if (reply == NULL) {
1035                 if (dbus_error_is_set(&error) == TRUE) {
1036                         connman_error("%s", error.message);
1037                         dbus_error_free(&error);
1038                 } else
1039                         connman_error("Failed to set network options");
1040                 dbus_message_unref(message);
1041                 return -EIO;
1042         }
1043
1044         dbus_message_unref(message);
1045
1046         dbus_message_unref(reply);
1047
1048         return 0;
1049
1050 invalid:
1051         dbus_message_unref(message);
1052         return -EINVAL;
1053 }
1054
1055 static void scan_reply(DBusPendingCall *call, void *user_data)
1056 {
1057         struct supplicant_task *task = user_data;
1058         DBusMessage *reply;
1059
1060         DBG("task %p", task);
1061
1062         task->scan_call = NULL;
1063
1064         reply = dbus_pending_call_steal_reply(call);
1065         if (reply == NULL)
1066                 return;
1067
1068         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1069                 connman_device_set_scanning(task->device, FALSE);
1070                 goto done;
1071         }
1072
1073         if (task->scanning == TRUE)
1074                 connman_device_set_scanning(task->device, TRUE);
1075
1076 done:
1077         dbus_message_unref(reply);
1078 }
1079
1080
1081 static int initiate_scan(struct supplicant_task *task)
1082 {
1083         DBusMessage *message;
1084
1085         DBG("task %p", task);
1086
1087         if (task->path == NULL)
1088                 return -EINVAL;
1089
1090         if (task->scan_call != NULL)
1091                 return -EALREADY;
1092
1093         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1094                                         SUPPLICANT_INTF ".Interface", "scan");
1095         if (message == NULL)
1096                 return -ENOMEM;
1097
1098         dbus_message_set_auto_start(message, FALSE);
1099
1100         if (dbus_connection_send_with_reply(connection, message,
1101                                         &task->scan_call, TIMEOUT) == FALSE) {
1102                 connman_error("Failed to initiate scan");
1103                 dbus_message_unref(message);
1104                 return -EIO;
1105         }
1106
1107         if (task->scan_call == NULL) {
1108                 connman_error("D-Bus connection not available");
1109                 dbus_message_unref(message);
1110                 return -EIO;
1111         }
1112
1113         dbus_pending_call_set_notify(task->scan_call, scan_reply, task, NULL);
1114
1115         dbus_message_unref(message);
1116
1117         return -EINPROGRESS;
1118 }
1119
1120 static struct {
1121         char *name;
1122         char *value;
1123 } special_ssid[] = {
1124         { "<hidden>", "hidden"  },
1125         { "default",  "linksys" },
1126         { "wireless"  },
1127         { "linksys"   },
1128         { "netgear"   },
1129         { "dlink"     },
1130         { "2wire"     },
1131         { "compaq"    },
1132         { "tsunami"   },
1133         { "comcomcom", "3com"     },
1134         { "3Com",      "3com"     },
1135         { "Symbol",    "symbol"   },
1136         { "Motorola",  "motorola" },
1137         { "Wireless" , "wireless" },
1138         { "WLAN",      "wlan"     },
1139         { }
1140 };
1141
1142 static char *build_group(const char *addr, const char *name,
1143                         const unsigned char *ssid, unsigned int ssid_len,
1144                                         const char *mode, const char *security)
1145 {
1146         GString *str;
1147         unsigned int i;
1148
1149         if (addr == NULL)
1150                 return NULL;
1151
1152         str = g_string_sized_new((ssid_len * 2) + 24);
1153         if (str == NULL)
1154                 return NULL;
1155
1156         if (ssid == NULL) {
1157                 g_string_append_printf(str, "hidden_%s", addr);
1158                 goto done;
1159         }
1160
1161         for (i = 0; special_ssid[i].name; i++) {
1162                 if (g_strcmp0(special_ssid[i].name, name) == 0) {
1163                         if (special_ssid[i].value == NULL)
1164                                 g_string_append_printf(str, "%s_%s",
1165                                                                 name, addr);
1166                         else
1167                                 g_string_append_printf(str, "%s_%s",
1168                                                 special_ssid[i].value, addr);
1169                         goto done;
1170                 }
1171         }
1172
1173         if (ssid_len > 0 && ssid[0] != '\0') {
1174                 for (i = 0; i < ssid_len; i++)
1175                         g_string_append_printf(str, "%02x", ssid[i]);
1176         } else
1177                 g_string_append_printf(str, "hidden_%s", addr);
1178
1179 done:
1180         g_string_append_printf(str, "_%s_%s", mode, security);
1181
1182         return g_string_free(str, FALSE);
1183 }
1184
1185 static void extract_addr(DBusMessageIter *value,
1186                                         struct supplicant_result *result)
1187 {
1188         DBusMessageIter array;
1189         struct ether_addr eth;
1190         unsigned char *addr;
1191         int addr_len;
1192
1193         dbus_message_iter_recurse(value, &array);
1194         dbus_message_iter_get_fixed_array(&array, &addr, &addr_len);
1195
1196         if (addr_len != 6)
1197                 return;
1198
1199         result->addr = g_try_malloc(addr_len);
1200         if (result->addr == NULL)
1201                 return;
1202
1203         memcpy(result->addr, addr, addr_len);
1204         result->addr_len = addr_len;
1205
1206         result->path = g_try_malloc0(13);
1207         if (result->path == NULL)
1208                 return;
1209
1210         memcpy(&eth, addr, sizeof(eth));
1211         snprintf(result->path, 13, "%02x%02x%02x%02x%02x%02x",
1212                                                 eth.ether_addr_octet[0],
1213                                                 eth.ether_addr_octet[1],
1214                                                 eth.ether_addr_octet[2],
1215                                                 eth.ether_addr_octet[3],
1216                                                 eth.ether_addr_octet[4],
1217                                                 eth.ether_addr_octet[5]);
1218 }
1219
1220 static void extract_ssid(DBusMessageIter *value,
1221                                         struct supplicant_result *result)
1222 {
1223         DBusMessageIter array;
1224         unsigned char *ssid;
1225         int ssid_len, i;
1226
1227         dbus_message_iter_recurse(value, &array);
1228         dbus_message_iter_get_fixed_array(&array, &ssid, &ssid_len);
1229
1230         if (ssid_len < 1)
1231                 return;
1232
1233         if (ssid[0] == '\0')
1234                 return;
1235
1236         result->ssid = g_try_malloc(ssid_len);
1237         if (result->ssid == NULL)
1238                 return;
1239
1240         memcpy(result->ssid, ssid, ssid_len);
1241         result->ssid_len = ssid_len;
1242
1243         result->name = g_try_malloc0(ssid_len + 1);
1244         if (result->name == NULL)
1245                 return;
1246
1247         for (i = 0; i < ssid_len; i++) {
1248                 if (g_ascii_isprint(ssid[i]))
1249                         result->name[i] = ssid[i];
1250                 else
1251                         result->name[i] = ' ';
1252         }
1253 }
1254
1255 static unsigned char wifi_oui[3]      = { 0x00, 0x50, 0xf2 };
1256 static unsigned char ieee80211_oui[3] = { 0x00, 0x0f, 0xac };
1257
1258 static void extract_rsn(struct supplicant_result *result,
1259                                         const unsigned char *buf, int len)
1260 {
1261         uint16_t count;
1262         int i;
1263
1264         /* Version */
1265         if (len < 2)
1266                 return;
1267
1268         buf += 2;
1269         len -= 2;
1270
1271         /* Group cipher */
1272         if (len < 4)
1273                 return;
1274
1275         buf += 4;
1276         len -= 4;
1277
1278         /* Pairwise cipher */
1279         if (len < 2)
1280                 return;
1281
1282         count = buf[0] | (buf[1] << 8);
1283         if (2 + (count * 4) > len)
1284                 return;
1285
1286         buf += 2 + (count * 4);
1287         len -= 2 + (count * 4);
1288
1289         /* Authentication */
1290         if (len < 2)
1291                 return;
1292
1293         count = buf[0] | (buf[1] << 8);
1294         if (2 + (count * 4) > len)
1295                 return;
1296
1297         for (i = 0; i < count; i++) {
1298                 const unsigned char *ptr = buf + 2 + (i * 4);
1299
1300                 if (memcmp(ptr, wifi_oui, 3) == 0) {
1301                         switch (ptr[3]) {
1302                         case 1:
1303                                 result->has_8021x = TRUE;
1304                                 break;
1305                         case 2:
1306                                 result->has_psk = TRUE;
1307                                 break;
1308                         }
1309                 } else if (memcmp(ptr, ieee80211_oui, 3) == 0) {
1310                         switch (ptr[3]) {
1311                         case 1:
1312                                 result->has_8021x = TRUE;
1313                                 break;
1314                         case 2:
1315                                 result->has_psk = TRUE;
1316                                 break;
1317                         }
1318                 }
1319         }
1320
1321         buf += 2 + (count * 4);
1322         len -= 2 + (count * 4);
1323 }
1324
1325 static void extract_wpaie(DBusMessageIter *value,
1326                                         struct supplicant_result *result)
1327 {
1328         DBusMessageIter array;
1329         unsigned char *ie;
1330         int ie_len;
1331
1332         dbus_message_iter_recurse(value, &array);
1333         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1334
1335         if (ie_len > 6) {
1336                 result->has_wpa = TRUE;
1337                 extract_rsn(result, ie + 6, ie_len - 6);
1338         }
1339 }
1340
1341 static void extract_rsnie(DBusMessageIter *value,
1342                                         struct supplicant_result *result)
1343 {
1344         DBusMessageIter array;
1345         unsigned char *ie;
1346         int ie_len;
1347
1348         dbus_message_iter_recurse(value, &array);
1349         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1350
1351         if (ie_len > 2) {
1352                 result->has_rsn = TRUE;
1353                 extract_rsn(result, ie + 2, ie_len - 2);
1354         }
1355 }
1356
1357 static void extract_wpsie(DBusMessageIter *value,
1358                                         struct supplicant_result *result)
1359 {
1360         DBusMessageIter array;
1361         unsigned char *ie;
1362         int ie_len;
1363
1364         dbus_message_iter_recurse(value, &array);
1365         dbus_message_iter_get_fixed_array(&array, &ie, &ie_len);
1366
1367         if (ie_len > 0)
1368                 result->has_wps = TRUE;
1369 }
1370
1371 static void extract_capabilites(DBusMessageIter *value,
1372                                         struct supplicant_result *result)
1373 {
1374         dbus_message_iter_get_basic(value, &result->capabilities);
1375
1376         if (result->capabilities & IEEE80211_CAP_ESS)
1377                 result->adhoc = FALSE;
1378         else if (result->capabilities & IEEE80211_CAP_IBSS)
1379                 result->adhoc = TRUE;
1380
1381         if (result->capabilities & IEEE80211_CAP_PRIVACY)
1382                 result->has_wep = TRUE;
1383 }
1384
1385 static unsigned char calculate_strength(struct supplicant_task *task,
1386                                         struct supplicant_result *result)
1387 {
1388         if (result->quality == -1 || task->range->max_qual.qual == 0) {
1389                 unsigned char strength;
1390
1391                 if (result->level > 0)
1392                         strength = 100 - result->level;
1393                 else
1394                         strength = 120 + result->level;
1395
1396                 if (strength > 100)
1397                         strength = 100;
1398
1399                 return strength;
1400         }
1401
1402         return (result->quality * 100) / task->range->max_qual.qual;
1403 }
1404
1405 static unsigned short calculate_channel(struct supplicant_result *result)
1406 {
1407         if (result->frequency < 0)
1408                 return 0;
1409
1410         return (result->frequency - 2407) / 5;
1411 }
1412
1413 static void get_properties(struct supplicant_task *task);
1414
1415 static void properties_reply(DBusPendingCall *call, void *user_data)
1416 {
1417         struct supplicant_task *task = user_data;
1418         struct supplicant_result result;
1419         struct connman_network *network;
1420         DBusMessage *reply;
1421         DBusMessageIter array, dict;
1422         unsigned char strength;
1423         unsigned short channel, frequency;
1424         const char *mode, *security;
1425         char *group = NULL;
1426
1427         DBG("task %p", task);
1428
1429         reply = dbus_pending_call_steal_reply(call);
1430         if (reply == NULL) {
1431                 get_properties(task);
1432                 return;
1433         }
1434
1435         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR) {
1436                 dbus_message_unref(reply);
1437                 get_properties(task);
1438                 return;
1439         }
1440
1441         memset(&result, 0, sizeof(result));
1442         result.frequency = -1;
1443         result.quality = -1;
1444         result.level = 0;
1445         result.noise = 0;
1446
1447         dbus_message_iter_init(reply, &array);
1448
1449         dbus_message_iter_recurse(&array, &dict);
1450
1451         while (dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY) {
1452                 DBusMessageIter entry, value;
1453                 const char *key;
1454
1455                 dbus_message_iter_recurse(&dict, &entry);
1456                 dbus_message_iter_get_basic(&entry, &key);
1457
1458                 dbus_message_iter_next(&entry);
1459
1460                 dbus_message_iter_recurse(&entry, &value);
1461
1462                 //type = dbus_message_iter_get_arg_type(&value);
1463                 //dbus_message_iter_get_basic(&value, &val);
1464
1465                 /*
1466                  * bssid        : a (97)
1467                  * ssid         : a (97)
1468                  * wpaie        : a (97)
1469                  * rsnie        : a (97)
1470                  * wpsie        : a (97)
1471                  * frequency    : i (105)
1472                  * capabilities : q (113)
1473                  * quality      : i (105)
1474                  * noise        : i (105)
1475                  * level        : i (105)
1476                  * maxrate      : i (105)
1477                  */
1478
1479                 if (g_str_equal(key, "bssid") == TRUE)
1480                         extract_addr(&value, &result);
1481                 else if (g_str_equal(key, "ssid") == TRUE)
1482                         extract_ssid(&value, &result);
1483                 else if (g_str_equal(key, "wpaie") == TRUE)
1484                         extract_wpaie(&value, &result);
1485                 else if (g_str_equal(key, "rsnie") == TRUE)
1486                         extract_rsnie(&value, &result);
1487                 else if (g_str_equal(key, "wpsie") == TRUE)
1488                         extract_wpsie(&value, &result);
1489                 else if (g_str_equal(key, "capabilities") == TRUE)
1490                         extract_capabilites(&value, &result);
1491                 else if (g_str_equal(key, "frequency") == TRUE)
1492                         dbus_message_iter_get_basic(&value, &result.frequency);
1493                 else if (g_str_equal(key, "quality") == TRUE)
1494                         dbus_message_iter_get_basic(&value, &result.quality);
1495                 else if (g_str_equal(key, "noise") == TRUE)
1496                         dbus_message_iter_get_basic(&value, &result.noise);
1497                 else if (g_str_equal(key, "level") == TRUE)
1498                         dbus_message_iter_get_basic(&value, &result.level);
1499                 else if (g_str_equal(key, "maxrate") == TRUE)
1500                         dbus_message_iter_get_basic(&value, &result.maxrate);
1501
1502                 dbus_message_iter_next(&dict);
1503         }
1504
1505         DBG("capabilties %u frequency %d "
1506                         "quality %d noise %d level %d maxrate %d",
1507                                         result.capabilities, result.frequency,
1508                                                 result.quality, result.noise,
1509                                                 result.level, result.maxrate);
1510
1511         if (result.path == NULL)
1512                 goto done;
1513
1514         if (result.path[0] == '\0')
1515                 goto done;
1516
1517         if (result.frequency > 0 && result.frequency < 14)
1518                 result.frequency = 2407 + (5 * result.frequency);
1519         else if (result.frequency == 14)
1520                 result.frequency = 2484;
1521
1522         strength = calculate_strength(task, &result);
1523         channel  = calculate_channel(&result);
1524
1525         frequency = (result.frequency < 0) ? 0 : result.frequency;
1526
1527         if (result.has_8021x == TRUE)
1528                 security = "ieee8021x";
1529         else if (result.has_psk == TRUE)
1530                 security = "psk";
1531         else if (result.has_wep == TRUE)
1532                 security = "wep";
1533         else
1534                 security = "none";
1535
1536         mode = (result.adhoc == TRUE) ? "adhoc" : "managed";
1537
1538         group = build_group(result.path, result.name,
1539                                         result.ssid, result.ssid_len,
1540                                                         mode, security);
1541
1542         if (result.has_psk == TRUE) {
1543                 if (result.has_rsn == TRUE)
1544                         security = "rsn";
1545                 else if (result.has_wpa == TRUE)
1546                         security = "wpa";
1547         }
1548
1549         network = connman_device_get_network(task->device, result.path);
1550         if (network == NULL) {
1551                 int index;
1552
1553                 network = connman_network_create(result.path,
1554                                                 CONNMAN_NETWORK_TYPE_WIFI);
1555                 if (network == NULL)
1556                         goto done;
1557
1558                 index = connman_device_get_index(task->device);
1559                 connman_network_set_index(network, index);
1560
1561                 connman_network_set_protocol(network,
1562                                                 CONNMAN_NETWORK_PROTOCOL_IP);
1563
1564                 connman_network_set_address(network, result.addr,
1565                                                         result.addr_len);
1566
1567                 if (connman_device_add_network(task->device, network) < 0) {
1568                         connman_network_unref(network);
1569                         goto done;
1570                 }
1571         }
1572
1573         if (result.name != NULL && result.name[0] != '\0')
1574                 connman_network_set_name(network, result.name);
1575
1576         connman_network_set_blob(network, "WiFi.SSID",
1577                                                 result.ssid, result.ssid_len);
1578
1579         connman_network_set_string(network, "WiFi.Mode", mode);
1580
1581         DBG("%s (%s %s) strength %d (%s)",
1582                                 result.name, mode, security, strength,
1583                                 (result.has_wps == TRUE) ? "WPS" : "no WPS");
1584
1585         connman_network_set_available(network, TRUE);
1586         connman_network_set_strength(network, strength);
1587
1588         connman_network_set_uint16(network, "Frequency", frequency);
1589         connman_network_set_uint16(network, "WiFi.Channel", channel);
1590         connman_network_set_string(network, "WiFi.Security", security);
1591
1592         if (result.ssid != NULL)
1593                 connman_network_set_group(network, group);
1594
1595 done:
1596         g_free(group);
1597
1598         g_free(result.path);
1599         g_free(result.addr);
1600         g_free(result.name);
1601         g_free(result.ssid);
1602
1603         dbus_message_unref(reply);
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         if (reply == NULL)
1670                 goto noscan;
1671
1672         if (dbus_message_get_type(reply) == DBUS_MESSAGE_TYPE_ERROR)
1673                 goto done;
1674
1675         dbus_error_init(&error);
1676
1677         if (dbus_message_get_args(reply, &error,
1678                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
1679                                                 &results, &num_results,
1680                                                 DBUS_TYPE_INVALID) == FALSE) {
1681                 if (dbus_error_is_set(&error) == TRUE) {
1682                         connman_error("%s", error.message);
1683                         dbus_error_free(&error);
1684                 } else
1685                         connman_error("Wrong arguments for scan result");
1686                 goto done;
1687         }
1688
1689         if (num_results == 0)
1690                 goto done;
1691
1692         for (i = 0; i < num_results; i++) {
1693                 char *path = g_strdup(results[i]);
1694                 if (path == NULL)
1695                         continue;
1696
1697                 task->scan_results = g_slist_append(task->scan_results, path);
1698         }
1699
1700         g_strfreev(results);
1701
1702         dbus_message_unref(reply);
1703
1704         get_properties(task);
1705
1706         return;
1707
1708 done:
1709         dbus_message_unref(reply);
1710
1711 noscan:
1712         task->result_call = NULL;
1713
1714         if (task->scanning == TRUE) {
1715                 connman_device_set_scanning(task->device, FALSE);
1716                 task->scanning = FALSE;
1717         }
1718 }
1719
1720 static void scan_results_available(struct supplicant_task *task)
1721 {
1722         DBusMessage *message;
1723
1724         DBG("task %p", task);
1725
1726         if (task->result_call != NULL)
1727                 return;
1728
1729         message = dbus_message_new_method_call(SUPPLICANT_NAME, task->path,
1730                                                 SUPPLICANT_INTF ".Interface",
1731                                                         "scanResults");
1732         if (message == NULL)
1733                 return;
1734
1735         dbus_message_set_auto_start(message, FALSE);
1736
1737         if (dbus_connection_send_with_reply(connection, message,
1738                                 &task->result_call, TIMEOUT) == FALSE) {
1739                 connman_error("Failed to request scan result");
1740                 goto done;
1741         }
1742
1743         if (task->result_call == NULL) {
1744                 connman_error("D-Bus connection not available");
1745                 goto done;
1746         }
1747
1748         if (task->scanning == TRUE)
1749                 connman_device_set_scanning(task->device, TRUE);
1750
1751         dbus_pending_call_set_notify(task->result_call,
1752                                         scan_results_reply, task, NULL);
1753
1754 done:
1755         dbus_message_unref(message);
1756 }
1757
1758 static enum supplicant_state string2state(const char *state)
1759 {
1760         if (g_str_equal(state, "INACTIVE") == TRUE)
1761                 return WPA_INACTIVE;
1762         else if (g_str_equal(state, "SCANNING") == TRUE)
1763                 return WPA_SCANNING;
1764         else if (g_str_equal(state, "ASSOCIATING") == TRUE)
1765                 return WPA_ASSOCIATING;
1766         else if (g_str_equal(state, "ASSOCIATED") == TRUE)
1767                 return WPA_ASSOCIATED;
1768         else if (g_str_equal(state, "GROUP_HANDSHAKE") == TRUE)
1769                 return WPA_GROUP_HANDSHAKE;
1770         else if (g_str_equal(state, "4WAY_HANDSHAKE") == TRUE)
1771                 return WPA_4WAY_HANDSHAKE;
1772         else if (g_str_equal(state, "COMPLETED") == TRUE)
1773                 return WPA_COMPLETED;
1774         else if (g_str_equal(state, "DISCONNECTED") == TRUE)
1775                 return WPA_DISCONNECTED;
1776         else
1777                 return WPA_INVALID;
1778 }
1779
1780 static int task_connect(struct supplicant_task *task)
1781 {
1782         const char *address, *security, *passphrase;
1783         const void *ssid;
1784         unsigned int ssid_len;
1785         int err;
1786
1787         connman_inet_ifup(task->ifindex);
1788
1789         address = connman_network_get_string(task->network, "Address");
1790         security = connman_network_get_string(task->network, "WiFi.Security");
1791         passphrase = connman_network_get_string(task->network, "WiFi.Passphrase");
1792
1793         ssid = connman_network_get_blob(task->network, "WiFi.SSID", &ssid_len);
1794
1795         DBG("address %s security %s", address, security);
1796
1797         if (security == NULL && passphrase == NULL)
1798                 return -EINVAL;
1799
1800         if (g_str_equal(security, "none") == FALSE && passphrase == NULL)
1801                 return -EINVAL;
1802
1803         remove_network(task);
1804
1805         set_ap_scan(task);
1806
1807         add_network(task);
1808
1809         err = set_network(task, ssid, ssid_len, address, security, passphrase);
1810         if (err < 0)
1811                 return err;
1812
1813         err = select_network(task);
1814         if (err < 0)
1815                 return err;
1816
1817         return -EINPROGRESS;
1818 }
1819
1820 static void scanning(struct supplicant_task *task, DBusMessage *msg)
1821 {
1822         DBusError error;
1823         dbus_bool_t scanning;
1824
1825         dbus_error_init(&error);
1826
1827         if (dbus_message_get_args(msg, &error, DBUS_TYPE_BOOLEAN, &scanning,
1828                                                 DBUS_TYPE_INVALID) == FALSE) {
1829                 if (dbus_error_is_set(&error) == TRUE) {
1830                         connman_error("%s", error.message);
1831                         dbus_error_free(&error);
1832                 } else
1833                         connman_error("Wrong arguments for scanning");
1834                 return;
1835         }
1836
1837         connman_info("%s scanning %s", task->ifname,
1838                                 scanning == TRUE ? "started" : "finished");
1839 }
1840
1841 static void state_change(struct supplicant_task *task, DBusMessage *msg)
1842 {
1843         DBusError error;
1844         const char *newstate, *oldstate;
1845         unsigned char bssid[ETH_ALEN];
1846         unsigned int bssid_len;
1847         enum supplicant_state state, prevstate;
1848
1849         dbus_error_init(&error);
1850
1851         if (dbus_message_get_args(msg, &error, DBUS_TYPE_STRING, &newstate,
1852                                                 DBUS_TYPE_STRING, &oldstate,
1853                                                 DBUS_TYPE_INVALID) == FALSE) {
1854                 if (dbus_error_is_set(&error) == TRUE) {
1855                         connman_error("%s", error.message);
1856                         dbus_error_free(&error);
1857                 } else
1858                         connman_error("Wrong arguments for state change");
1859                 return;
1860         }
1861
1862         DBG("state %s ==> %s", oldstate, newstate);
1863
1864         connman_info("%s %s%s", task->ifname, newstate,
1865                                 task->scanning == TRUE ? " (scanning)" : "");
1866
1867         state = string2state(newstate);
1868         if (state == WPA_INVALID)
1869                 return;
1870
1871         if (task->scanning == TRUE && state != WPA_SCANNING) {
1872                 connman_device_cleanup_scanning(task->device);
1873                 task->scanning = FALSE;
1874         }
1875
1876         prevstate = task->state;
1877         task->state = state;
1878
1879         if (task->network == NULL)
1880                 return;
1881
1882         switch (task->state) {
1883         case WPA_COMPLETED:
1884                 switch (prevstate) {
1885                 case WPA_ASSOCIATED:
1886                 case WPA_GROUP_HANDSHAKE:
1887                         break;
1888                 default:
1889                         goto badstate;
1890                 }
1891
1892                 /* reset scan trigger and schedule background scan */
1893                 connman_device_schedule_scan(task->device);
1894
1895                 if (get_bssid(task->device, bssid, &bssid_len) == 0)
1896                         connman_network_set_address(task->network,
1897                                                         bssid, bssid_len);
1898
1899                 /* carrier on */
1900                 connman_network_set_connected(task->network, TRUE);
1901                 break;
1902
1903         case WPA_ASSOCIATING:
1904                 switch (prevstate) {
1905                 case WPA_COMPLETED:
1906                         break;
1907                 case WPA_SCANNING:
1908                         connman_network_set_associating(task->network, TRUE);
1909                         break;
1910                 default:
1911                         goto badstate;
1912                 }
1913                 break;
1914
1915         case WPA_INACTIVE:
1916                 switch (prevstate) {
1917                 case WPA_SCANNING:
1918                 case WPA_DISCONNECTED:
1919                         break;
1920                 default:
1921                         goto badstate;
1922                 }
1923                 /* fall through */
1924
1925         case WPA_DISCONNECTED:
1926                 /* carrier off */
1927                 connman_network_set_connected(task->network, FALSE);
1928
1929                 if (task->disconnecting == TRUE) {
1930                         connman_network_unref(task->network);
1931                         task->disconnecting = FALSE;
1932
1933                         if (task->pending_network != NULL) {
1934                                 task->network = task->pending_network;
1935                                 task->pending_network = NULL;
1936                                 task_connect(task);
1937                         } else
1938                                 task->network = NULL;
1939                 }
1940                 break;
1941
1942         default:
1943                 connman_network_set_associating(task->network, FALSE);
1944                 break;
1945         }
1946
1947         return;
1948
1949 badstate:
1950         connman_error("%s invalid state change %s -> %s", task->ifname,
1951                                                         oldstate, newstate);
1952 }
1953
1954 static DBusHandlerResult supplicant_filter(DBusConnection *conn,
1955                                                 DBusMessage *msg, void *data)
1956 {
1957         struct supplicant_task *task;
1958         const char *member, *path;
1959
1960         if (dbus_message_has_interface(msg,
1961                                 SUPPLICANT_INTF ".Interface") == FALSE)
1962                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1963
1964         member = dbus_message_get_member(msg);
1965         if (member == NULL)
1966                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1967
1968         path = dbus_message_get_path(msg);
1969         if (path == NULL)
1970                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1971
1972         task = find_task_by_path(path);
1973         if (task == NULL)
1974                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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 DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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 const char *supplicant_rule = "type=signal,"
2217                                 "interface=" SUPPLICANT_INTF ".Interface";
2218 static guint watch;
2219
2220 static int supplicant_create(void)
2221 {
2222         if (g_slist_length(driver_list) > 0)
2223                 return 0;
2224
2225         connection = connman_dbus_get_connection();
2226         if (connection == NULL)
2227                 return -EIO;
2228
2229         DBG("connection %p", connection);
2230
2231         if (dbus_connection_add_filter(connection,
2232                                 supplicant_filter, NULL, NULL) == FALSE) {
2233                 dbus_connection_unref(connection);
2234                 connection = NULL;
2235                 return -EIO;
2236         }
2237
2238         dbus_bus_add_match(connection, supplicant_rule, NULL);
2239         dbus_connection_flush(connection);
2240
2241         watch = g_dbus_add_service_watch(connection, SUPPLICANT_NAME,
2242                         supplicant_probe, supplicant_remove, NULL, NULL);
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         if (watch > 0)
2255                 g_dbus_remove_watch(connection, watch);
2256
2257         dbus_bus_remove_match(connection, supplicant_rule, NULL);
2258         dbus_connection_flush(connection);
2259
2260         dbus_connection_remove_filter(connection, supplicant_filter, NULL);
2261
2262         dbus_connection_unref(connection);
2263         connection = NULL;
2264 }
2265
2266 int supplicant_register(struct supplicant_driver *driver)
2267 {
2268         int err;
2269
2270         DBG("driver %p name %s", driver, driver->name);
2271
2272         err = supplicant_create();
2273         if (err < 0)
2274                 return err;
2275
2276         driver_list = g_slist_append(driver_list, driver);
2277
2278         supplicant_activate(connection);
2279
2280         return 0;
2281 }
2282
2283 void supplicant_unregister(struct supplicant_driver *driver)
2284 {
2285         DBG("driver %p name %s", driver, driver->name);
2286
2287         supplicant_remove(connection, NULL);
2288
2289         driver_list = g_slist_remove(driver_list, driver);
2290
2291         supplicant_destroy();
2292 }